From: Markus Lidel <Markus.Lidel@shadowconnect.com>
generic:
- split i2o_core into several files, grouped by same function
- I2O devices are now registered as devices and show up in sysfs
- the various I2O OSM's (e.g. i2o_scsi) now register in the I2O core
and also use the 2.6 driver mechanism.
- I2O messages will be created in the message frame instead of creating
it in local memory and copying it over later on.
- context list for 64 pointer to 32 context conversion now uses a
double linked list
PCI:
- driver now registers as a PCI device driver and uses probe function to
get the possible controllers. (needed for hotplugging)
- converted DMA handling from pci_* to generic dma_* functions
Block OSM:
- use one request queue per I2O block device instead of one per
controller
- I2O block devices and queues are allocated dynamically and therefore
no more limit of block devices
SCSI OSM:
- corrected bug in SCSI reply function which caused the memory to be
freed before the done function was called.
- one I2O controller registers as one scsi host instead of one scsi host
per channel
- no more ch,id,lun => tid mapping table
Config OSM:
- added ioctl32 for passthru and getiops.
- removed ioctl_html
Documentation:
- removed TODO entries from README
- moved docs under Documentation/i2o
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
/dev/null |11922 -------------------------------
25-akpm/Documentation/i2o/README | 63
25-akpm/Documentation/i2o/ioctl | 394 +
25-akpm/drivers/message/i2o/Makefile | 5
25-akpm/drivers/message/i2o/block-osm.c | 1444 +++
25-akpm/drivers/message/i2o/block-osm.h | 99
25-akpm/drivers/message/i2o/config-osm.c | 1206 +++
25-akpm/drivers/message/i2o/debug.c | 576 +
25-akpm/drivers/message/i2o/device.c | 700 +
25-akpm/drivers/message/i2o/driver.c | 290
25-akpm/drivers/message/i2o/exec-osm.c | 532 +
25-akpm/drivers/message/i2o/iop.c | 1261 +++
25-akpm/drivers/message/i2o/pci.c | 541 +
25-akpm/drivers/message/i2o/proc-osm.c | 2123 +++++
25-akpm/drivers/message/i2o/scsi-osm.c | 1012 ++
25-akpm/include/linux/i2o-dev.h | 36
25-akpm/include/linux/i2o.h | 570 +
17 files changed, 10657 insertions(+), 12117 deletions(-)
diff -puN /dev/null Documentation/i2o/ioctl
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/Documentation/i2o/ioctl Tue Jul 27 14:06:32 2004
@@ -0,0 +1,394 @@
+
+Linux I2O User Space Interface
+rev 0.3 - 04/20/99
+
+=============================================================================
+Originally written by Deepak Saxena(deepak@plexity.net)
+Currently maintained by Deepak Saxena(deepak@plexity.net)
+=============================================================================
+
+I. Introduction
+
+The Linux I2O subsystem provides a set of ioctl() commands that can be
+utilized by user space applications to communicate with IOPs and devices
+on individual IOPs. This document defines the specific ioctl() commands
+that are available to the user and provides examples of their uses.
+
+This document assumes the reader is familiar with or has access to the
+I2O specification as no I2O message parameters are outlined. For information
+on the specification, see http://www.i2osig.org
+
+This document and the I2O user space interface are currently maintained
+by Deepak Saxena. Please send all comments, errata, and bug fixes to
+deepak@csociety.purdue.edu
+
+II. IOP Access
+
+Access to the I2O subsystem is provided through the device file named
+/dev/i2o/ctl. This file is a character file with major number 10 and minor
+number 166. It can be created through the following command:
+
+ mknod /dev/i2o/ctl c 10 166
+
+III. Determining the IOP Count
+
+ SYNOPSIS
+
+ ioctl(fd, I2OGETIOPS, int *count);
+
+ u8 count[MAX_I2O_CONTROLLERS];
+
+ DESCRIPTION
+
+ This function returns the system's active IOP table. count should
+ point to a buffer containing MAX_I2O_CONTROLLERS entries. Upon
+ returning, each entry will contain a non-zero value if the given
+ IOP unit is active, and NULL if it is inactive or non-existent.
+
+ RETURN VALUE.
+
+ Returns 0 if no errors occur, and -1 otherwise. If an error occurs,
+ errno is set appropriately:
+
+ EFAULT Invalid user space pointer was passed
+
+IV. Getting Hardware Resource Table
+
+ SYNOPSIS
+
+ ioctl(fd, I2OHRTGET, struct i2o_cmd_hrt *hrt);
+
+ struct i2o_cmd_hrtlct
+ {
+ u32 iop; /* IOP unit number */
+ void *resbuf; /* Buffer for result */
+ u32 *reslen; /* Buffer length in bytes */
+ };
+
+ DESCRIPTION
+
+ This function returns the Hardware Resource Table of the IOP specified
+ by hrt->iop in the buffer pointed to by hrt->resbuf. The actual size of
+ the data is written into *(hrt->reslen).
+
+ RETURNS
+
+ This function returns 0 if no errors occur. If an error occurs, -1
+ is returned and errno is set appropriately:
+
+ EFAULT Invalid user space pointer was passed
+ ENXIO Invalid IOP number
+ ENOBUFS Buffer not large enough. If this occurs, the required
+ buffer length is written into *(hrt->reslen)
+
+V. Getting Logical Configuration Table
+
+ SYNOPSIS
+
+ ioctl(fd, I2OLCTGET, struct i2o_cmd_lct *lct);
+
+ struct i2o_cmd_hrtlct
+ {
+ u32 iop; /* IOP unit number */
+ void *resbuf; /* Buffer for result */
+ u32 *reslen; /* Buffer length in bytes */
+ };
+
+ DESCRIPTION
+
+ This function returns the Logical Configuration Table of the IOP specified
+ by lct->iop in the buffer pointed to by lct->resbuf. The actual size of
+ the data is written into *(lct->reslen).
+
+ RETURNS
+
+ This function returns 0 if no errors occur. If an error occurs, -1
+ is returned and errno is set appropriately:
+
+ EFAULT Invalid user space pointer was passed
+ ENXIO Invalid IOP number
+ ENOBUFS Buffer not large enough. If this occurs, the required
+ buffer length is written into *(lct->reslen)
+
+VI. Settting Parameters
+
+ SYNOPSIS
+
+ ioctl(fd, I2OPARMSET, struct i2o_parm_setget *ops);
+
+ struct i2o_cmd_psetget
+ {
+ u32 iop; /* IOP unit number */
+ u32 tid; /* Target device TID */
+ void *opbuf; /* Operation List buffer */
+ u32 oplen; /* Operation List buffer length in bytes */
+ void *resbuf; /* Result List buffer */
+ u32 *reslen; /* Result List buffer length in bytes */
+ };
+
+ DESCRIPTION
+
+ This function posts a UtilParamsSet message to the device identified
+ by ops->iop and ops->tid. The operation list for the message is
+ sent through the ops->opbuf buffer, and the result list is written
+ into the buffer pointed to by ops->resbuf. The number of bytes
+ written is placed into *(ops->reslen).
+
+ RETURNS
+
+ The return value is the size in bytes of the data written into
+ ops->resbuf if no errors occur. If an error occurs, -1 is returned
+ and errno is set appropriatly:
+
+ EFAULT Invalid user space pointer was passed
+ ENXIO Invalid IOP number
+ ENOBUFS Buffer not large enough. If this occurs, the required
+ buffer length is written into *(ops->reslen)
+ ETIMEDOUT Timeout waiting for reply message
+ ENOMEM Kernel memory allocation error
+
+ A return value of 0 does not mean that the value was actually
+ changed properly on the IOP. The user should check the result
+ list to determine the specific status of the transaction.
+
+VII. Getting Parameters
+
+ SYNOPSIS
+
+ ioctl(fd, I2OPARMGET, struct i2o_parm_setget *ops);
+
+ struct i2o_parm_setget
+ {
+ u32 iop; /* IOP unit number */
+ u32 tid; /* Target device TID */
+ void *opbuf; /* Operation List buffer */
+ u32 oplen; /* Operation List buffer length in bytes */
+ void *resbuf; /* Result List buffer */
+ u32 *reslen; /* Result List buffer length in bytes */
+ };
+
+ DESCRIPTION
+
+ This function posts a UtilParamsGet message to the device identified
+ by ops->iop and ops->tid. The operation list for the message is
+ sent through the ops->opbuf buffer, and the result list is written
+ into the buffer pointed to by ops->resbuf. The actual size of data
+ written is placed into *(ops->reslen).
+
+ RETURNS
+
+ EFAULT Invalid user space pointer was passed
+ ENXIO Invalid IOP number
+ ENOBUFS Buffer not large enough. If this occurs, the required
+ buffer length is written into *(ops->reslen)
+ ETIMEDOUT Timeout waiting for reply message
+ ENOMEM Kernel memory allocation error
+
+ A return value of 0 does not mean that the value was actually
+ properly retreived. The user should check the result list
+ to determine the specific status of the transaction.
+
+VIII. Downloading Software
+
+ SYNOPSIS
+
+ ioctl(fd, I2OSWDL, struct i2o_sw_xfer *sw);
+
+ struct i2o_sw_xfer
+ {
+ u32 iop; /* IOP unit number */
+ u8 flags; /* DownloadFlags field */
+ u8 sw_type; /* Software type */
+ u32 sw_id; /* Software ID */
+ void *buf; /* Pointer to software buffer */
+ u32 *swlen; /* Length of software buffer */
+ u32 *maxfrag; /* Number of fragments */
+ u32 *curfrag; /* Current fragment number */
+ };
+
+ DESCRIPTION
+
+ This function downloads a software fragment pointed by sw->buf
+ to the iop identified by sw->iop. The DownloadFlags, SwID, SwType
+ and SwSize fields of the ExecSwDownload message are filled in with
+ the values of sw->flags, sw->sw_id, sw->sw_type and *(sw->swlen).
+
+ The fragments _must_ be sent in order and be 8K in size. The last
+ fragment _may_ be shorter, however. The kernel will compute its
+ size based on information in the sw->swlen field.
+
+ Please note that SW transfers can take a long time.
+
+ RETURNS
+
+ This function returns 0 no errors occur. If an error occurs, -1
+ is returned and errno is set appropriatly:
+
+ EFAULT Invalid user space pointer was passed
+ ENXIO Invalid IOP number
+ ETIMEDOUT Timeout waiting for reply message
+ ENOMEM Kernel memory allocation error
+
+IX. Uploading Software
+
+ SYNOPSIS
+
+ ioctl(fd, I2OSWUL, struct i2o_sw_xfer *sw);
+
+ struct i2o_sw_xfer
+ {
+ u32 iop; /* IOP unit number */
+ u8 flags; /* UploadFlags */
+ u8 sw_type; /* Software type */
+ u32 sw_id; /* Software ID */
+ void *buf; /* Pointer to software buffer */
+ u32 *swlen; /* Length of software buffer */
+ u32 *maxfrag; /* Number of fragments */
+ u32 *curfrag; /* Current fragment number */
+ };
+
+ DESCRIPTION
+
+ This function uploads a software fragment from the IOP identified
+ by sw->iop, sw->sw_type, sw->sw_id and optionally sw->swlen fields.
+ The UploadFlags, SwID, SwType and SwSize fields of the ExecSwUpload
+ message are filled in with the values of sw->flags, sw->sw_id,
+ sw->sw_type and *(sw->swlen).
+
+ The fragments _must_ be requested in order and be 8K in size. The
+ user is responsible for allocating memory pointed by sw->buf. The
+ last fragment _may_ be shorter.
+
+ Please note that SW transfers can take a long time.
+
+ RETURNS
+
+ This function returns 0 if no errors occur. If an error occurs, -1
+ is returned and errno is set appropriatly:
+
+ EFAULT Invalid user space pointer was passed
+ ENXIO Invalid IOP number
+ ETIMEDOUT Timeout waiting for reply message
+ ENOMEM Kernel memory allocation error
+
+X. Removing Software
+
+ SYNOPSIS
+
+ ioctl(fd, I2OSWDEL, struct i2o_sw_xfer *sw);
+
+ struct i2o_sw_xfer
+ {
+ u32 iop; /* IOP unit number */
+ u8 flags; /* RemoveFlags */
+ u8 sw_type; /* Software type */
+ u32 sw_id; /* Software ID */
+ void *buf; /* Unused */
+ u32 *swlen; /* Length of the software data */
+ u32 *maxfrag; /* Unused */
+ u32 *curfrag; /* Unused */
+ };
+
+ DESCRIPTION
+
+ This function removes software from the IOP identified by sw->iop.
+ The RemoveFlags, SwID, SwType and SwSize fields of the ExecSwRemove message
+ are filled in with the values of sw->flags, sw->sw_id, sw->sw_type and
+ *(sw->swlen). Give zero in *(sw->len) if the value is unknown. IOP uses
+ *(sw->swlen) value to verify correct identication of the module to remove.
+ The actual size of the module is written into *(sw->swlen).
+
+ RETURNS
+
+ This function returns 0 if no errors occur. If an error occurs, -1
+ is returned and errno is set appropriatly:
+
+ EFAULT Invalid user space pointer was passed
+ ENXIO Invalid IOP number
+ ETIMEDOUT Timeout waiting for reply message
+ ENOMEM Kernel memory allocation error
+
+X. Validating Configuration
+
+ SYNOPSIS
+
+ ioctl(fd, I2OVALIDATE, int *iop);
+ u32 iop;
+
+ DESCRIPTION
+
+ This function posts an ExecConfigValidate message to the controller
+ identified by iop. This message indicates that the current
+ configuration is accepted. The iop changes the status of suspect drivers
+ to valid and may delete old drivers from its store.
+
+ RETURNS
+
+ This function returns 0 if no erro occur. If an error occurs, -1 is
+ returned and errno is set appropriatly:
+
+ ETIMEDOUT Timeout waiting for reply message
+ ENXIO Invalid IOP number
+
+XI. Configuration Dialog
+
+ SYNOPSIS
+
+ ioctl(fd, I2OHTML, struct i2o_html *htquery);
+ struct i2o_html
+ {
+ u32 iop; /* IOP unit number */
+ u32 tid; /* Target device ID */
+ u32 page; /* HTML page */
+ void *resbuf; /* Buffer for reply HTML page */
+ u32 *reslen; /* Length in bytes of reply buffer */
+ void *qbuf; /* Pointer to HTTP query string */
+ u32 qlen; /* Length in bytes of query string buffer */
+ };
+
+ DESCRIPTION
+
+ This function posts an UtilConfigDialog message to the device identified
+ by htquery->iop and htquery->tid. The requested HTML page number is
+ provided by the htquery->page field, and the resultant data is stored
+ in the buffer pointed to by htquery->resbuf. If there is an HTTP query
+ string that is to be sent to the device, it should be sent in the buffer
+ pointed to by htquery->qbuf. If there is no query string, this field
+ should be set to NULL. The actual size of the reply received is written
+ into *(htquery->reslen).
+
+ RETURNS
+
+ This function returns 0 if no error occur. If an error occurs, -1
+ is returned and errno is set appropriatly:
+
+ EFAULT Invalid user space pointer was passed
+ ENXIO Invalid IOP number
+ ENOBUFS Buffer not large enough. If this occurs, the required
+ buffer length is written into *(ops->reslen)
+ ETIMEDOUT Timeout waiting for reply message
+ ENOMEM Kernel memory allocation error
+
+XII. Events
+
+ In the process of determining this. Current idea is to have use
+ the select() interface to allow user apps to periodically poll
+ the /dev/i2o/ctl device for events. When select() notifies the user
+ that an event is available, the user would call read() to retrieve
+ a list of all the events that are pending for the specific device.
+
+=============================================================================
+Revision History
+=============================================================================
+
+Rev 0.1 - 04/01/99
+- Initial revision
+
+Rev 0.2 - 04/06/99
+- Changed return values to match UNIX ioctl() standard. Only return values
+ are 0 and -1. All errors are reported through errno.
+- Added summary of proposed possible event interfaces
+
+Rev 0.3 - 04/20/99
+- Changed all ioctls() to use pointers to user data instead of actual data
+- Updated error values to match the code
diff -puN /dev/null Documentation/i2o/README
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/Documentation/i2o/README Tue Jul 27 14:06:32 2004
@@ -0,0 +1,63 @@
+
+ Linux I2O Support (c) Copyright 1999 Red Hat Software
+ and others.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License
+ as published by the Free Software Foundation; either version
+ 2 of the License, or (at your option) any later version.
+
+AUTHORS (so far)
+
+Alan Cox, Building Number Three Ltd.
+ Core code, SCSI and Block OSMs
+
+Steve Ralston, LSI Logic Corp.
+ Debugging SCSI and Block OSM
+
+Deepak Saxena, Intel Corp.
+ Various core/block extensions
+ /proc interface, bug fixes
+ Ioctl interfaces for control
+ Debugging LAN OSM
+
+Philip Rumpf
+ Fixed assorted dumb SMP locking bugs
+
+Juha Sievanen, University of Helsinki Finland
+ LAN OSM code
+ /proc interface to LAN class
+ Bug fixes
+ Core code extensions
+
+Auvo H�kkinen, University of Helsinki Finland
+ LAN OSM code
+ /Proc interface to LAN class
+ Bug fixes
+ Core code extensions
+
+Taneli V�h�kangas, University of Helsinki Finland
+ Fixes to i2o_config
+
+CREDITS
+
+ This work was made possible by
+
+Red Hat Software
+ Funding for the Building #3 part of the project
+
+Symbios Logic (Now LSI)
+ Host adapters, hints, known to work platforms when I hit
+ compatibility problems
+
+BoxHill Corporation
+ Loan of initial FibreChannel disk array used for development work.
+
+European Comission
+ Funding the work done by the University of Helsinki
+
+SysKonnect
+ Loan of FDDI and Gigabit Ethernet cards
+
+ASUSTeK
+ Loan of I2O motherboard
diff -puN /dev/null drivers/message/i2o/block-osm.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/block-osm.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,1444 @@
+/*
+ * Block OSM
+ *
+ * Copyright (C) 1999-2002 Red Hat Software
+ *
+ * Written by Alan Cox, Building Number Three Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * For the purpose of avoiding doubt the preferred form of the work
+ * for making modifications shall be a standards compliant form such
+ * gzipped tar and not one requiring a proprietary or patent encumbered
+ * tool to unpack.
+ *
+ * Fixes/additions:
+ * Steve Ralston:
+ * Multiple device handling error fixes,
+ * Added a queue depth.
+ * Alan Cox:
+ * FC920 has an rmw bug. Dont or in the end marker.
+ * Removed queue walk, fixed for 64bitness.
+ * Rewrote much of the code over time
+ * Added indirect block lists
+ * Handle 64K limits on many controllers
+ * Don't use indirects on the Promise (breaks)
+ * Heavily chop down the queue depths
+ * Deepak Saxena:
+ * Independent queues per IOP
+ * Support for dynamic device creation/deletion
+ * Code cleanup
+ * Support for larger I/Os through merge* functions
+ * (taken from DAC960 driver)
+ * Boji T Kannanthanam:
+ * Set the I2O Block devices to be detected in increasing
+ * order of TIDs during boot.
+ * Search and set the I2O block device that we boot off
+ * from as the first device to be claimed (as /dev/i2o/hda)
+ * Properly attach/detach I2O gendisk structure from the
+ * system gendisk list. The I2O block devices now appear in
+ * /proc/partitions.
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Minor bugfixes for 2.6.
+ */
+
+#include <linux/module.h>
+#include <linux/i2o.h>
+
+#include <linux/mempool.h>
+
+#include <linux/genhd.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+
+#include "block-osm.h"
+
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+/* Internal used functions */
+static struct i2o_block_device *i2o_block_device_alloc(void);
+static void i2o_block_device_free(struct i2o_block_device *);
+
+static int i2o_block_probe(struct device *);
+static int i2o_block_remove(struct device *);
+
+static int i2o_block_device_flush(struct i2o_device *);
+static int i2o_block_device_mount(struct i2o_device *, u32);
+static int i2o_block_device_lock(struct i2o_device *, u32);
+static int i2o_block_device_unlock(struct i2o_device *, u32);
+static int i2o_block_device_power(struct i2o_block_device *, u8);
+
+static inline struct i2o_block_request *i2o_block_request_alloc(void);
+static inline void i2o_block_request_free(struct i2o_block_request *);
+
+static inline int i2o_block_sglist_alloc(struct i2o_block_request *);
+static inline void i2o_block_sglist_free(struct i2o_block_request *);
+
+static int i2o_block_prep_req_fn(struct request_queue *, struct request *);
+static void i2o_block_delayed_request_fn(void *);
+static void i2o_block_request_fn(struct request_queue *);
+static int i2o_block_transfer(struct request *);
+static int i2o_block_reply(struct i2o_controller *, u32, struct i2o_message *);
+static void i2o_block_event(struct i2o_event *);
+
+static void i2o_block_biosparam(unsigned long, unsigned short *,
+ unsigned char *, unsigned char *);
+
+static int i2o_block_open(struct inode *, struct file *);
+static int i2o_block_release(struct inode *, struct file *);
+static int i2o_block_ioctl(struct inode *, struct file *, unsigned int,
+ unsigned long);
+static int i2o_block_media_changed(struct gendisk *);
+
+static int __init i2o_block_init(void);
+static void __exit i2o_block_exit(void);
+
+/* global Block OSM request mempool */
+static struct i2o_block_mempool i2o_blk_req_pool;
+
+/* I2O Block device operations definition */
+static struct block_device_operations i2o_block_fops =
+{
+ .owner = THIS_MODULE,
+ .open = i2o_block_open,
+ .release = i2o_block_release,
+ .ioctl = i2o_block_ioctl,
+ .media_changed = i2o_block_media_changed
+};
+
+/* Block OSM class handling definition */
+static struct i2o_class_id i2o_block_class_id[] = {
+ { I2O_CLASS_RANDOM_BLOCK_STORAGE },
+ { I2O_CLASS_END }
+};
+
+/* Block OSM driver struct */
+static struct i2o_driver i2o_block_driver = {
+ .name = "block-osm",
+ .event = i2o_block_event,
+ .reply = i2o_block_reply,
+ .classes = i2o_block_class_id,
+ .driver.probe = i2o_block_probe,
+ .driver.remove = i2o_block_remove
+};
+
+
+/**
+ * i2o_block_device_alloc - Allocate memory for a I2O Block device
+ *
+ * Allocate memory for the i2o_block_device struct, gendisk and request
+ * queue and initialize them as far as no additional information is needed.
+ *
+ * Returns a pointer to the allocated I2O Block device on succes or a
+ * negative error code on failure.
+ */
+static struct i2o_block_device *i2o_block_device_alloc(void)
+{
+ struct i2o_block_device *dev;
+ struct gendisk *gd;
+ struct request_queue *queue;
+ int rc;
+
+ dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ if(!dev) {
+ printk(KERN_ERR "block-osm: Insufficient memory to allocate "
+ "I2O Block disk.\n");
+ rc = -ENOMEM;
+ goto exit;
+ }
+ memset(dev, 0, sizeof(*dev));
+
+ INIT_LIST_HEAD(&dev->open_queue);
+ spin_lock_init(&dev->lock);
+ dev->rcache = CACHE_PREFETCH;
+ dev->wcache = CACHE_WRITEBACK;
+
+ /* allocate a gendisk with 16 partitions */
+ gd = alloc_disk(16);
+ if(!gd) {
+ printk(KERN_ERR "block-osm: Insufficient memory to allocate "
+ "gendisk.\n");
+ rc = -ENOMEM;
+ goto cleanup_dev;
+ }
+
+ /* initialize the request queue */
+ queue = blk_init_queue(i2o_block_request_fn, &dev->lock);
+ if(!queue)
+ {
+ printk(KERN_ERR "block-osm: Insufficient memory to allocate "
+ "request queue.\n");
+ rc = -ENOMEM;
+ goto cleanup_queue;
+ }
+
+ blk_queue_prep_rq(queue, i2o_block_prep_req_fn);
+
+ gd->major = I2O_MAJOR;
+ gd->queue = queue;
+ gd->fops = &i2o_block_fops;
+ gd->private_data = dev;
+
+ dev->gd = gd;
+
+ return dev;
+
+cleanup_queue:
+ put_disk(gd);
+
+cleanup_dev:
+ kfree(dev);
+
+exit:
+ return ERR_PTR(rc);
+};
+
+/**
+ * i2o_block_device_free - free the memory of the I2O Block device
+ * @dev: I2O Block device, which should be cleaned up
+ *
+ * Frees the request queue, gendisk and the i2o_block_device structure.
+ */
+static void i2o_block_device_free(struct i2o_block_device *dev)
+{
+ blk_cleanup_queue(dev->gd->queue);
+
+ put_disk(dev->gd);
+
+ kfree(dev);
+};
+
+/**
+ * i2o_block_probe - verify if dev is a I2O Block device and install it
+ * @dev: device to verify if it is a I2O Block device
+ *
+ * We only verify if the user_tid of the device is 0xfff and then install
+ * the device. Otherwise it is used by some other device (e. g. RAID).
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_probe(struct device *dev)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+ struct i2o_block_device *i2o_blk_dev;
+ struct i2o_controller *c = i2o_dev->iop;
+ struct gendisk *gd;
+ struct request_queue *queue;
+ static int unit = 0;
+ int rc;
+ u64 size;
+ u32 blocksize;
+ u16 power;
+ u32 flags, status;
+ int segments;
+
+ /* skip devices which are used by IOP */
+ if(i2o_dev->lct_data.user_tid != 0xfff) {
+ DBG("skipping used device %03x\n", i2o_dev->lct_data.tid);
+ return -ENODEV;
+ }
+
+ printk(KERN_INFO "block-osm: New device detected (TID: %03x)\n",
+ i2o_dev->lct_data.tid);
+
+ if(i2o_device_claim(i2o_dev)) {
+ printk(KERN_WARNING "block-osm: Unable to claim device. "
+ "Installation aborted\n");
+ rc = -EFAULT;
+ goto exit;
+ }
+
+ i2o_blk_dev = i2o_block_device_alloc();
+ if(IS_ERR(i2o_blk_dev))
+ {
+ printk(KERN_ERR "block-osm: could not alloc a new I2O block"
+ "device");
+ rc = PTR_ERR(i2o_blk_dev);
+ goto claim_release;
+ }
+
+ i2o_blk_dev->i2o_dev = i2o_dev;
+ dev_set_drvdata(dev, i2o_blk_dev);
+
+ /* setup gendisk */
+ gd = i2o_blk_dev->gd;
+ gd->first_minor = unit<<4;
+ sprintf(gd->disk_name, "i2o/hd%c", 'a' + unit);
+
+ /* setup request queue */
+ queue = gd->queue;
+ queue->queuedata = i2o_blk_dev;
+
+ blk_queue_max_phys_segments(queue, I2O_MAX_SEGMENTS);
+ blk_queue_max_sectors(queue, I2O_MAX_SECTORS);
+
+ if(c->short_req)
+ segments = 8;
+ else {
+ i2o_status_block *sb;
+
+ sb = c->status_block.virt;
+
+ segments = (sb->inbound_frame_size -
+ sizeof(struct i2o_message)/4 - 4) / 2;
+ }
+
+ blk_queue_max_hw_segments(queue, segments);
+
+ DBG("max sectors: %d\n", I2O_MAX_SECTORS);
+ DBG("phys segments: %d\n", I2O_MAX_SEGMENTS);
+ DBG("hw segments: %d\n", segments);
+
+ /*
+ * Ask for the current media data. If that isn't supported
+ * then we ask for the device capacity data
+ */
+ if(i2o_parm_field_get(i2o_dev, 0x0004, 1, &blocksize, 4) != 0
+ || i2o_parm_field_get(i2o_dev, 0x0004, 0, &size, 8) !=0 )
+ {
+ i2o_parm_field_get(i2o_dev, 0x0000, 3, &blocksize, 4);
+ i2o_parm_field_get(i2o_dev, 0x0000, 4, &size, 8);
+ }
+ DBG("blocksize: %d\n", blocksize);
+
+ if(i2o_parm_field_get(i2o_dev, 0x0000, 2, &power, 2))
+ power = 0;
+ i2o_parm_field_get(i2o_dev, 0x0000, 5, &flags, 4);
+ i2o_parm_field_get(i2o_dev, 0x0000, 6, &status, 4);
+
+ set_capacity(gd, size>>9);
+
+ i2o_event_register(i2o_dev, &i2o_block_driver, 0, 0xffffffff);
+
+ add_disk(gd);
+
+ unit ++;
+
+ return 0;
+
+claim_release:
+ i2o_device_claim_release(i2o_dev);
+
+exit:
+ return rc;
+};
+
+/**
+ * i2o_block_remove - remove the I2O Block device from the system again
+ * @dev: I2O Block device which should be removed
+ *
+ * Remove gendisk from system and free all allocated memory.
+ *
+ * Always returns 0.
+ */
+static int i2o_block_remove(struct device *dev)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+ struct i2o_block_device *i2o_blk_dev = dev_get_drvdata(dev);
+
+ printk(KERN_INFO "block-osm: Device removed %s\n",
+ i2o_blk_dev->gd->disk_name);
+
+ i2o_event_register(i2o_dev, &i2o_block_driver, 0, 0);
+
+ del_gendisk(i2o_blk_dev->gd);
+
+ dev_set_drvdata(dev, NULL);
+
+ i2o_device_claim_release(i2o_dev);
+
+ i2o_block_device_free(i2o_blk_dev);
+
+ return 0;
+};
+
+/**
+ * i2o_block_device flush - Flush all dirty data of I2O device dev
+ * @dev: I2O device which should be flushed
+ *
+ * Flushes all dirty data on device dev.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_flush(struct i2o_device *dev)
+{
+ struct i2o_message *msg;
+ u32 m;
+
+ m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FIVE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_BLOCK_CFLUSH<<24|HOST_TID<<12|dev->lct_data.tid,
+ &msg->head[1]);
+ writel(60<<16, &msg->body[0]);
+ DBG("Flushing...\n");
+
+ return i2o_msg_post_wait(dev->iop, m, 60);
+};
+
+/**
+ * i2o_block_device_mount - Mount (load) the media of device dev
+ * @dev: I2O device which should receive the mount request
+ * @media_id: Media Identifier
+ *
+ * Load a media into drive. Identifier should be set to -1, because the
+ * spec does not support any other value.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_mount(struct i2o_device *dev, u32 media_id)
+{
+ struct i2o_message *msg;
+ u32 m;
+
+ m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FIVE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_BLOCK_MMOUNT<<24|HOST_TID<<12|dev->lct_data.tid,
+ &msg->head[1]);
+ writel(-1, &msg->body[0]);
+ writel(0, &msg->body[1]);
+ DBG("Mounting...\n");
+
+ return i2o_msg_post_wait(dev->iop, m, 2);
+};
+
+/**
+ * i2o_block_device_lock - Locks the media of device dev
+ * @dev: I2O device which should receive the lock request
+ * @media_id: Media Identifier
+ *
+ * Lock media of device dev to prevent removal. The media identifier
+ * should be set to -1, because the spec does not support any other value.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_lock(struct i2o_device *dev, u32 media_id)
+{
+ struct i2o_message *msg;
+ u32 m;
+
+ m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FIVE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_BLOCK_MLOCK<<24|HOST_TID<<12|dev->lct_data.tid,
+ &msg->head[1]);
+ writel(-1, &msg->body[0]);
+ DBG("Locking...\n");
+
+ return i2o_msg_post_wait(dev->iop, m, 2);
+};
+
+/**
+ * i2o_block_device_unlock - Unlocks the media of device dev
+ * @dev: I2O device which should receive the unlocked request
+ * @media_id: Media Identifier
+ *
+ * Unlocks the media in device dev. The media identifier should be set to
+ * -1, because the spec does not support any other value.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_unlock(struct i2o_device *dev, u32 media_id)
+{
+ struct i2o_message *msg;
+ u32 m;
+
+ m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FIVE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_BLOCK_MUNLOCK<<24|HOST_TID<<12|dev->lct_data.tid,
+ &msg->head[1]);
+ writel(media_id, &msg->body[0]);
+ DBG("Unlocking...\n");
+
+ return i2o_msg_post_wait(dev->iop, m, 2);
+};
+
+/**
+ * i2o_block_device_power - Power management for device dev
+ * @dev: I2O device which should receive the power management request
+ * @operation: Operation which should be send
+ *
+ * Send a power management request to the device dev.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_device_power(struct i2o_block_device *dev, u8 op)
+{
+ struct i2o_device *i2o_dev = dev->i2o_dev;
+ struct i2o_controller *c = i2o_dev->iop;
+ struct i2o_message *msg;
+ u32 m;
+ int rc;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FOUR_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_BLOCK_POWER<<24|HOST_TID<<12|i2o_dev->lct_data.tid,
+ &msg->head[1]);
+ writel(op << 24, &msg->body[0]);
+ DBG("Power...\n");
+
+ rc = i2o_msg_post_wait(c, m, 60);
+ if(!rc)
+ dev->power = op;
+
+ return rc;
+};
+
+/**
+ * i2o_block_request_alloc - Allocate an I2O block request struct
+ *
+ * Allocates an I2O block request struct and initialize the list.
+ *
+ * Returns a i2o_block_request pointer on success or negative error code
+ * on failure.
+ */
+static inline struct i2o_block_request *i2o_block_request_alloc(void)
+{
+ struct i2o_block_request *ireq;
+
+ ireq = mempool_alloc(i2o_blk_req_pool.pool, GFP_ATOMIC);
+ if(!ireq)
+ return ERR_PTR(-ENOMEM);
+
+ INIT_LIST_HEAD(&ireq->queue);
+
+ return ireq;
+};
+
+/**
+ * i2o_block_request_free - Frees a I2O block request
+ * @ireq: I2O block request which should be freed
+ *
+ * Fres the allocated memory (give it back to the request mempool).
+ */
+static inline void i2o_block_request_free(struct i2o_block_request *ireq)
+{
+ mempool_free(ireq, i2o_blk_req_pool.pool);
+};
+
+/**
+ * i2o_block_sglist_alloc - Allocate the SG list and map it
+ * @ireq: I2O block request
+ *
+ * Builds the SG list and map it into to be accessable by the controller.
+ *
+ * Returns the number of elements in the SG list or 0 on failure.
+ */
+static inline int i2o_block_sglist_alloc(struct i2o_block_request *ireq)
+{
+ struct device *dev = &ireq->i2o_blk_dev->i2o_dev->iop->pdev->dev;
+ int nents;
+
+ nents = blk_rq_map_sg(ireq->req->q, ireq->req, ireq->sg_table);
+
+ if(rq_data_dir(ireq->req) == READ)
+ ireq->sg_dma_direction = PCI_DMA_FROMDEVICE;
+ else
+ ireq->sg_dma_direction = PCI_DMA_TODEVICE;
+
+ ireq->sg_nents = dma_map_sg(dev, ireq->sg_table, nents,
+ ireq->sg_dma_direction);
+
+ return ireq->sg_nents;
+};
+
+/**
+ * i2o_block_sglist_free - Frees the SG list
+ * @ireq: I2O block request from which the SG should be freed
+ *
+ * Frees the SG list from the I2O block request.
+ */
+static inline void i2o_block_sglist_free(struct i2o_block_request *ireq)
+{
+ struct device *dev = &ireq->i2o_blk_dev->i2o_dev->iop->pdev->dev;
+
+ dma_unmap_sg(dev, ireq->sg_table,ireq->sg_nents,ireq->sg_dma_direction);
+};
+
+/**
+ * i2o_block_prep_req_fn - Allocates I2O block device specific struct
+ * @q: request queue for the request
+ * @req: the request to prepare
+ *
+ * Allocate the necessary i2o_block_request struct and connect it to
+ * the request. This is needed that we not loose the SG list later on.
+ *
+ * Returns BLKPREP_OK on success or BLKPREP_DEFER on failure.
+ */
+static int i2o_block_prep_req_fn(struct request_queue *q, struct request *req)
+{
+ struct i2o_block_device *i2o_blk_dev = q->queuedata;
+ struct i2o_block_request *ireq;
+
+ /* request is already processed by us, so return */
+ if(req->flags & REQ_SPECIAL) {
+ DBG("REQ_SPECIAL already set!\n");
+ req->flags |= REQ_DONTPREP;
+ return BLKPREP_OK;
+ }
+
+ /* connect the i2o_block_request to the request */
+ if(!req->special) {
+ ireq = i2o_block_request_alloc();
+ if(unlikely(IS_ERR(ireq))) {
+ DBG("unable to allocate i2o_block_request!\n");
+ return BLKPREP_DEFER;
+ }
+
+ ireq->i2o_blk_dev = i2o_blk_dev;
+ req->special = ireq;
+ ireq->req = req;
+ } else
+ ireq = req->special;
+
+ /* do not come back here */
+ req->flags |= REQ_DONTPREP | REQ_SPECIAL;
+
+ return BLKPREP_OK;
+};
+
+/**
+ * i2o_block_delayed_request_fn - delayed request queue function
+ * delayed_request: the delayed request with the queue to start
+ *
+ * If the request queue is stopped for a disk, and there is no open
+ * request, a new event is created, which calls this function to start
+ * the queue after I2O_BLOCK_REQUEST_TIME. Otherwise the queue will never
+ * be started again.
+ */
+static void i2o_block_delayed_request_fn(void *delayed_request)
+{
+ struct i2o_block_delayed_request *dreq = delayed_request;
+ struct request_queue *q = dreq->queue;
+ unsigned long flags;
+
+ spin_lock_irqsave(q->queue_lock, flags);
+ blk_start_queue(q);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+ kfree(dreq);
+};
+
+/**
+ * i2o_block_request_fn - request queue handling function
+ * q: request queue from which the request could be fetched
+ *
+ * Takes the next request from the queue, transfers it and if no error
+ * occurs dequeue it from the queue. On arrival of the reply the message
+ * will be processed further. If an error occurs requeue the request.
+ */
+static void i2o_block_request_fn(struct request_queue *q)
+{
+ struct request *req;
+
+ while(!blk_queue_plugged(q)) {
+ req = elv_next_request(q);
+ if(!req)
+ break;
+
+ if(blk_fs_request(req)) {
+ struct i2o_block_delayed_request *dreq;
+ struct i2o_block_request *ireq = req->special;
+ unsigned int queue_depth;
+
+ queue_depth = ireq->i2o_blk_dev->open_queue_depth;
+
+ if(queue_depth < I2O_BLOCK_MAX_OPEN_REQUESTS)
+ if(!i2o_block_transfer(req)) {
+ blkdev_dequeue_request(req);
+ continue;
+ }
+
+ if(queue_depth)
+ break;
+
+ /* stop the queue and retry later */
+ dreq = kmalloc(sizeof(*dreq), GFP_ATOMIC);
+ if(!dreq)
+ continue;
+
+ dreq->queue = q;
+ INIT_WORK(&dreq->work, i2o_block_delayed_request_fn,
+ dreq);
+
+ printk(KERN_INFO "block-osm: transfer error\n");
+ if(!queue_delayed_work(i2o_block_driver.event_queue,
+ &dreq->work,I2O_BLOCK_RETRY_TIME))
+ kfree(dreq);
+ else {
+ blk_stop_queue(q);
+ break;
+ }
+ } else
+ end_request(req, 0);
+ }
+};
+
+/**
+ * i2o_block_transfer - Transfer a request to/from the I2O controller
+ * @req: the request which should be transfered
+ *
+ * This function converts the request into a I2O message. The necessary
+ * DMA buffers are allocated and after everything is setup post the message
+ * to the I2O controller. No cleanup is done by this function. It is done
+ * on the interrupt side when the reply arrives.
+ *
+ * Return 0 on success or negative error code on failure.
+ */
+static int i2o_block_transfer(struct request *req)
+{
+ struct i2o_block_device *dev = req->rq_disk->private_data;
+ struct i2o_controller *c = dev->i2o_dev->iop;
+ int tid = dev->i2o_dev->lct_data.tid;
+ struct i2o_message *msg;
+ void *mptr;
+ struct i2o_block_request *ireq = req->special;
+ struct scatterlist *sg;
+ int sgnum;
+ int i;
+ u32 m;
+ u32 tcntxt;
+ u32 sg_flags;
+ int rc;
+
+ m=i2o_msg_get(c, &msg);
+ if(m==I2O_QUEUE_EMPTY) {
+ rc = -EBUSY;
+ goto exit;
+ }
+
+ tcntxt = i2o_cntxt_list_add(c, req);
+ if(!tcntxt) {
+ rc = -ENOMEM;
+ goto nop_msg;
+ }
+
+ if((sgnum=i2o_block_sglist_alloc(ireq)) <= 0) {
+ rc = -ENOMEM;
+ goto context_remove;
+ }
+
+ /* Build the message based on the request. */
+ writel(i2o_block_driver.context, &msg->icntxt);
+ writel(tcntxt, &msg->tcntxt);
+ writel(req->nr_sectors << 9, &msg->body[1]);
+
+ writel((((u64)req->sector) << 9) & 0xffffffff, &msg->body[2]);
+ writel(req->sector>>23, &msg->body[3]);
+
+ mptr=&msg->body[4];
+
+ sg = ireq->sg_table;
+
+ if(rq_data_dir(req) == READ) {
+ writel(I2O_CMD_BLOCK_READ<<24|HOST_TID<<12|tid, &msg->head[1]);
+ sg_flags = 0x10000000;
+ switch(dev->rcache) {
+ case CACHE_NULL:
+ writel(0, &msg->body[0]);break;
+ case CACHE_PREFETCH:
+ writel(0x201F0008, &msg->body[0]);break;
+ case CACHE_SMARTFETCH:
+ if(req->nr_sectors > 16)
+ writel(0x201F0008, &msg->body[0]);
+ else
+ writel(0x001F0000, &msg->body[0]);
+ break;
+ }
+ } else {
+ writel(I2O_CMD_BLOCK_WRITE<<24|HOST_TID<<12|tid, &msg->head[1]);
+ sg_flags = 0x14000000;
+ switch(dev->wcache) {
+ case CACHE_NULL:
+ writel(0, &msg->body[0]);break;
+ case CACHE_WRITETHROUGH:
+ writel(0x001F0008, &msg->body[0]);break;
+ case CACHE_WRITEBACK:
+ writel(0x001F0010, &msg->body[0]);break;
+ case CACHE_SMARTBACK:
+ if(req->nr_sectors > 16)
+ writel(0x001F0004, &msg->body[0]);
+ else
+ writel(0x001F0010, &msg->body[0]);
+ break;
+ case CACHE_SMARTTHROUGH:
+ if(req->nr_sectors > 16)
+ writel(0x001F0004, &msg->body[0]);
+ else
+ writel(0x001F0010, &msg->body[0]);
+ }
+ }
+
+ for(i = sgnum; i > 0; i--) {
+ if(i == 1)
+ sg_flags |= 0x80000000;
+ writel(sg_flags|sg_dma_len(sg), mptr);
+ writel(sg_dma_address(sg), mptr+4);
+ mptr += 8;
+ sg++;
+ }
+
+ writel(I2O_MESSAGE_SIZE(((unsigned long)mptr-(unsigned long)&msg->head[0])>>2) | SGL_OFFSET_8, &msg->head[0]);
+
+ i2o_msg_post(c,m);
+
+ list_add_tail(&ireq->queue, &dev->open_queue);
+ dev->open_queue_depth ++;
+
+ return 0;
+
+
+context_remove:
+ i2o_cntxt_list_remove(c, req);
+
+nop_msg:
+ i2o_msg_nop(c, m);
+
+exit:
+ return rc;
+};
+
+/**
+ * i2o_block_reply - Block OSM reply handler.
+ * @c: I2O controller from which the message arrives
+ * @m: message id of reply
+ * qmsg: the actuall I2O message reply
+ *
+ * This function gets all the message replies.
+ *
+ */
+static int i2o_block_reply(struct i2o_controller *c, u32 m,
+ struct i2o_message *msg)
+{
+ struct i2o_block_request *ireq;
+ struct request *req;
+ struct i2o_block_device *dev;
+ struct request_queue *q;
+ u8 st;
+ unsigned long flags;
+
+ /* FAILed message */
+ if(unlikely(readl(&msg->head[0]) & (1<<13))) {
+ struct i2o_message *pmsg;
+ u32 pm;
+
+ printk(KERN_WARNING "FAIL");
+ /*
+ * FAILed message from controller
+ * We increment the error count and abort it
+ *
+ * In theory this will never happen. The I2O block class
+ * specification states that block devices never return
+ * FAILs but instead use the REQ status field...but
+ * better be on the safe side since no one really follows
+ * the spec to the book :)
+ */
+ pm = readl(&msg->body[3]);
+ pmsg = c->in_queue.virt + pm;
+
+ req = i2o_cntxt_list_get(c, readl(&pmsg->tcntxt));
+ if(unlikely(!req)) {
+ printk(KERN_ERR "block-osm: NULL reply received!\n");
+ return -1;
+ }
+
+ ireq = req->special;
+ dev = ireq->i2o_blk_dev;
+ q = dev->gd->queue;
+
+ req->errors++;
+
+ spin_lock_irqsave(q->queue_lock, flags);
+
+ while(end_that_request_chunk(req, !req->errors,
+ readl(&pmsg->body[1])));
+ end_that_request_last(req);
+
+ dev->open_queue_depth --;
+ list_del(&ireq->queue);
+ blk_start_queue(q);
+
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ /* Now flush the message by making it a NOP */
+ i2o_msg_nop(c, pm);
+
+ return -1;
+ }
+
+ req = i2o_cntxt_list_get(c, readl(&msg->tcntxt));
+ if(unlikely(!req)) {
+ printk(KERN_ERR "block-osm: NULL reply received!\n");
+ return -1;
+ }
+
+ ireq = req->special;
+ dev = ireq->i2o_blk_dev;
+ q = dev->gd->queue;
+
+ if(unlikely(!dev->i2o_dev)) {
+ /*
+ * This is HACK, but Intel Integrated RAID allows user
+ * to delete a volume that is claimed, locked, and in use
+ * by the OS. We have to check for a reply from a
+ * non-existent device and flag it as an error or the system
+ * goes kaput...
+ */
+ req->errors++;
+ printk(KERN_WARNING "I2O Block: Data transfer to deleted device!\n");
+ spin_lock_irqsave(q->queue_lock, flags);
+ while(end_that_request_chunk(req, !req->errors, readl(&msg->body[1])));
+ end_that_request_last(req);
+
+ dev->open_queue_depth --;
+ list_del(&ireq->queue);
+ blk_start_queue(q);
+
+ spin_unlock_irqrestore(q->queue_lock, flags);
+ return -1;
+ }
+
+ /*
+ * Lets see what is cooking. We stuffed the
+ * request in the context.
+ */
+
+ st=readl(&msg->body[0])>>24;
+
+ if(st!=0) {
+ int err;
+ char *bsa_errors[] =
+ {
+ "Success",
+ "Media Error",
+ "Failure communicating to device",
+ "Device Failure",
+ "Device is not ready",
+ "Media not present",
+ "Media is locked by another user",
+ "Media has failed",
+ "Failure communicating to device",
+ "Device bus failure",
+ "Device is locked by another user",
+ "Device is write protected",
+ "Device has reset",
+ "Volume has changed, waiting for acknowledgement"
+ };
+
+ err = readl(&msg->body[0])&0xffff;
+
+ /*
+ * Device not ready means two things. One is that the
+ * the thing went offline (but not a removal media)
+ *
+ * The second is that you have a SuperTrak 100 and the
+ * firmware got constipated. Unlike standard i2o card
+ * setups the supertrak returns an error rather than
+ * blocking for the timeout in these cases.
+ *
+ * Don't stick a supertrak100 into cache aggressive modes
+ */
+
+
+ printk(KERN_ERR "\n/dev/%s error: %s", dev->gd->disk_name,
+ bsa_errors[readl(&msg->body[0])&0xffff]);
+ if(readl(&msg->body[0])&0x00ff0000)
+ printk(" - DDM attempted %d retries", (readl(&msg->body[0])>>16)&0x00ff);
+ printk(".\n");
+ req->errors++;
+ } else
+ req->errors = 0;
+
+ if(!end_that_request_chunk(req, !req->errors, readl(&msg->body[1]))) {
+ add_disk_randomness(req->rq_disk);
+ spin_lock_irqsave(q->queue_lock, flags);
+
+ end_that_request_last(req);
+
+ dev->open_queue_depth --;
+ list_del(&ireq->queue);
+ blk_start_queue(q);
+
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ i2o_block_sglist_free(ireq);
+ i2o_block_request_free(ireq);
+ } else
+ printk(KERN_ERR "still remaining chunks\n");
+
+ return 1;
+};
+
+static void i2o_block_event(struct i2o_event *evt)
+{
+ printk(KERN_INFO "block-osm: event received\n");
+};
+
+#if 0
+static int i2o_block_event(void *dummy)
+{
+ unsigned int evt;
+ unsigned long flags;
+ struct i2o_block_device *dev;
+ int unit;
+ //The only event that has data is the SCSI_SMART event.
+ struct i2o_reply {
+ u32 header[4];
+ u32 evt_indicator;
+ u8 ASC;
+ u8 ASCQ;
+ u16 pad;
+ u8 data[16];
+ } *evt_local;
+
+ daemonize("i2oblock");
+ allow_signal(SIGKILL);
+
+ evt_running = 1;
+
+ while(1)
+ {
+ if(down_interruptible(&i2ob_evt_sem))
+ {
+ evt_running = 0;
+ printk("exiting...");
+ break;
+ }
+
+ /*
+ * Keep another CPU/interrupt from overwriting the
+ * message while we're reading it
+ *
+ * We stuffed the unit in the TxContext and grab the event mask
+ * None of the BSA we care about events have EventData
+ */
+ spin_lock_irqsave(&i2ob_evt_lock, flags);
+ evt_local = (struct i2o_reply *)evt_msg;
+ spin_unlock_irqrestore(&i2ob_evt_lock, flags);
+
+ unit = le32_to_cpu(evt_local->header[3]);
+ evt = le32_to_cpu(evt_local->evt_indicator);
+
+ dev = &i2o_blk_dev[unit];
+ switch(evt)
+ {
+ /*
+ * New volume loaded on same TID, so we just re-install.
+ * The TID/controller don't change as it is the same
+ * I2O device. It's just new media that we have to
+ * rescan.
+ */
+ case I2O_EVT_IND_BSA_VOLUME_LOAD:
+ {
+ i2ob_install_device(dev->i2o_device->iop,
+ dev->i2o_device, unit);
+ add_disk(dev->gendisk);
+ break;
+ }
+
+ /*
+ * No media, so set all parameters to 0 and set the media
+ * change flag. The I2O device is still valid, just doesn't
+ * have media, so we don't want to clear the controller or
+ * device pointer.
+ */
+ case I2O_EVT_IND_BSA_VOLUME_UNLOAD:
+ {
+ struct gendisk *p = dev->gendisk;
+ blk_queue_max_sectors(dev->gendisk->queue, 0);
+ del_gendisk(p);
+ put_disk(p);
+ dev->gendisk = NULL;
+ dev->media_change_flag = 1;
+ break;
+ }
+
+ case I2O_EVT_IND_BSA_VOLUME_UNLOAD_REQ:
+ printk(KERN_WARNING "%s: Attempt to eject locked media\n",
+ dev->i2o_device->dev_name);
+ break;
+
+ /*
+ * The capacity has changed and we are going to be
+ * updating the max_sectors and other information
+ * about this disk. We try a revalidate first. If
+ * the block device is in use, we don't want to
+ * do that as there may be I/Os bound for the disk
+ * at the moment. In that case we read the size
+ * from the device and update the information ourselves
+ * and the user can later force a partition table
+ * update through an ioctl.
+ */
+ case I2O_EVT_IND_BSA_CAPACITY_CHANGE:
+ {
+ u64 size;
+
+ if(i2ob_query_device(dev, 0x0004, 0, &size, 8) !=0 )
+ i2ob_query_device(dev, 0x0000, 4, &size, 8);
+
+ spin_lock_irqsave(dev->req_queue->queue_lock, flags);
+ set_capacity(dev->gendisk, size>>9);
+ spin_unlock_irqrestore(dev->req_queue->queue_lock, flags);
+ break;
+ }
+
+ /*
+ * We got a SCSI SMART event, we just log the relevant
+ * information and let the user decide what they want
+ * to do with the information.
+ */
+ case I2O_EVT_IND_BSA_SCSI_SMART:
+ {
+ char buf[16];
+ printk(KERN_INFO "I2O Block: %s received a SCSI SMART Event\n",dev->i2o_device->dev_name);
+ evt_local->data[16]='\0';
+ sprintf(buf,"%s",&evt_local->data[0]);
+ printk(KERN_INFO " Disk Serial#:%s\n",buf);
+ printk(KERN_INFO " ASC 0x%02x \n",evt_local->ASC);
+ printk(KERN_INFO " ASCQ 0x%02x \n",evt_local->ASCQ);
+ break;
+ }
+
+ /*
+ * Non event
+ */
+
+ case 0:
+ break;
+
+ /*
+ * An event we didn't ask for. Call the card manufacturer
+ * and tell them to fix their firmware :)
+ */
+
+ case 0x20:
+ /*
+ * If a promise card reports 0x20 event then the brown stuff
+ * hit the fan big time. The card seems to recover but loses
+ * the pending writes. Deeply ungood except for testing fsck
+ */
+ if(dev->i2o_device->iop->promise)
+ panic("I2O controller firmware failed. Reboot and force a filesystem check.\n");
+ default:
+ printk(KERN_INFO "%s: Received event 0x%X we didn't register for\n"
+ KERN_INFO " Blame the I2O card manufacturer 8)\n",
+ dev->i2o_device->dev_name, evt);
+ break;
+ }
+ };
+
+ complete_and_exit(&i2ob_thread_dead,0);
+ return 0;
+}
+#endif
+
+/*
+ * SCSI-CAM for ioctl geometry mapping
+ * Duplicated with SCSI - this should be moved into somewhere common
+ * perhaps genhd ?
+ *
+ * LBA -> CHS mapping table taken from:
+ *
+ * "Incorporating the I2O Architecture into BIOS for Intel Architecture
+ * Platforms"
+ *
+ * This is an I2O document that is only available to I2O members,
+ * not developers.
+ *
+ * From my understanding, this is how all the I2O cards do this
+ *
+ * Disk Size | Sectors | Heads | Cylinders
+ * ---------------+---------+-------+-------------------
+ * 1 < X <= 528M | 63 | 16 | X/(63 * 16 * 512)
+ * 528M < X <= 1G | 63 | 32 | X/(63 * 32 * 512)
+ * 1 < X <528M | 63 | 16 | X/(63 * 16 * 512)
+ * 1 < X <528M | 63 | 16 | X/(63 * 16 * 512)
+ *
+ */
+#define BLOCK_SIZE_528M 1081344
+#define BLOCK_SIZE_1G 2097152
+#define BLOCK_SIZE_21G 4403200
+#define BLOCK_SIZE_42G 8806400
+#define BLOCK_SIZE_84G 17612800
+
+static void i2o_block_biosparam(unsigned long capacity, unsigned short *cyls,
+ unsigned char *hds, unsigned char *secs)
+{
+ unsigned long heads, sectors, cylinders;
+
+ sectors = 63L; /* Maximize sectors per track */
+ if(capacity <= BLOCK_SIZE_528M)
+ heads = 16;
+ else if(capacity <= BLOCK_SIZE_1G)
+ heads = 32;
+ else if(capacity <= BLOCK_SIZE_21G)
+ heads = 64;
+ else if(capacity <= BLOCK_SIZE_42G)
+ heads = 128;
+ else
+ heads = 255;
+
+ cylinders = (unsigned long)capacity / (heads * sectors);
+
+ *cyls = (unsigned short) cylinders; /* Stuff return values */
+ *secs = (unsigned char) sectors;
+ *hds = (unsigned char) heads;
+}
+
+
+/**
+ * i2o_block_open - Open the block device
+ *
+ * Power up the device, mount and lock the media. This function is called,
+ * if the block device is opened for access.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_open(struct inode *inode, struct file *file)
+{
+ struct i2o_block_device *dev = inode->i_bdev->bd_disk->private_data;
+
+ if(!dev->i2o_dev)
+ return -ENODEV;
+
+ if(dev->power > 0x1f)
+ i2o_block_device_power(dev, 0x02);
+
+ i2o_block_device_mount(dev->i2o_dev, -1);
+
+ i2o_block_device_lock(dev->i2o_dev, -1);
+
+ DBG("Ready.\n");
+
+ return 0;
+};
+
+/**
+ * i2o_block_release - Release the I2O block device
+ *
+ * Unlock and unmount the media, and power down the device. Gets called if
+ * the block device is closed.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_block_release(struct inode *inode, struct file *file)
+{
+ struct gendisk *disk = inode->i_bdev->bd_disk;
+ struct i2o_block_device *dev = disk->private_data;
+ u8 operation;
+
+ /*
+ * This is to deail with the case of an application
+ * opening a device and then the device dissapears while
+ * it's in use, and then the application tries to release
+ * it. ex: Unmounting a deleted RAID volume at reboot.
+ * If we send messages, it will just cause FAILs since
+ * the TID no longer exists.
+ */
+ if(!dev->i2o_dev)
+ return 0;
+
+ i2o_block_device_flush(dev->i2o_dev);
+
+ i2o_block_device_unlock(dev->i2o_dev, -1);
+
+ if(dev->flags & (1<<3|1<<4)) /* Removable */
+ operation = 0x21;
+ else
+ operation = 0x24;
+
+ i2o_block_device_power(dev, operation);
+
+ return 0;
+}
+
+/**
+ * i2o_block_ioctl - Issue device specific ioctl calls.
+ * @cmd: ioctl command
+ * @arg: arg
+ *
+ * Handles ioctl request for the block device.
+ *
+ * Return 0 on success or negative error on failure.
+ */
+static int i2o_block_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ struct gendisk *disk = inode->i_bdev->bd_disk;
+ struct i2o_block_device *dev = disk->private_data;
+ void __user *argp = (void __user *)arg;
+
+ /* Anyone capable of this syscall can do *real bad* things */
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ switch (cmd) {
+ case HDIO_GETGEO:
+ {
+ struct hd_geometry g;
+ i2o_block_biosparam(get_capacity(disk),
+ &g.cylinders, &g.heads, &g.sectors);
+ g.start = get_start_sect(inode->i_bdev);
+ return copy_to_user(argp, &g, sizeof(g))?-EFAULT:0;
+ }
+
+ case BLKI2OGRSTRAT:
+ return put_user(dev->rcache, (int __user *)arg);
+ case BLKI2OGWSTRAT:
+ return put_user(dev->wcache, (int __user *)arg);
+ case BLKI2OSRSTRAT:
+ if(arg<0||arg>CACHE_SMARTFETCH)
+ return -EINVAL;
+ dev->rcache = arg;
+ break;
+ case BLKI2OSWSTRAT:
+ if(arg!=0 && (arg<CACHE_WRITETHROUGH || arg>CACHE_SMARTBACK))
+ return -EINVAL;
+ dev->wcache = arg;
+ break;
+ }
+ return -ENOTTY;
+};
+
+/**
+ * i2o_block_media_changed - Have we seen a media change?
+ * @disk: gendisk which should be verified
+ *
+ * Verifies if the media has changed.
+ *
+ * Returns 1 if the media was changed or 0 otherwise.
+ */
+static int i2o_block_media_changed(struct gendisk *disk)
+{
+ struct i2o_block_device *p = disk->private_data;
+
+ if(p->media_change_flag) {
+ p->media_change_flag=0;
+ return 1;
+ }
+ return 0;
+}
+
+/**
+ * i2o_block_init - Block OSM initialization function
+ *
+ * Allocate the slab and mempool for request structs, registers i2o_block
+ * block device and finally register the Block OSM in the I2O core.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_block_init(void)
+{
+ int rc;
+ int size;
+
+ printk(KERN_INFO "I2O Block Storage OSM v0.9\n");
+ printk(KERN_INFO " (c) Copyright 1999-2001 Red Hat Software.\n");
+
+ /* Allocate request mempool and slab */
+ size = sizeof(struct i2o_block_request);
+ i2o_blk_req_pool.slab = kmem_cache_create("i2o_block_req", size, 0,
+ SLAB_HWCACHE_ALIGN, NULL, NULL);
+ if (!i2o_blk_req_pool.slab) {
+ printk(KERN_ERR "block-osm: can't init request slab\n");
+ rc = -ENOMEM;
+ goto exit;
+ }
+
+ i2o_blk_req_pool.pool = mempool_create(I2O_REQ_MEMPOOL_SIZE,
+ mempool_alloc_slab, mempool_free_slab, i2o_blk_req_pool.slab);
+ if (!i2o_blk_req_pool.pool) {
+ printk(KERN_ERR "block-osm: can't init request mempool\n");
+ rc = -ENOMEM;
+ goto free_slab;
+ }
+
+ /* Register the block device interfaces */
+ rc = register_blkdev(I2O_MAJOR, "i2o_block");
+ if(rc) {
+ printk(KERN_ERR "block-osm: unable to register block device\n");
+ goto free_mempool;
+ }
+
+#ifdef MODULE
+ printk(KERN_INFO "block-osm: registered device at major %d\n",
+ I2O_MAJOR);
+#endif
+
+ /* Register Block OSM into I2O core */
+ rc = i2o_driver_register(&i2o_block_driver);
+ if(rc) {
+ printk(KERN_ERR "block-osm: Could not register Block driver\n");
+ goto unregister_blkdev;
+ }
+
+ return 0;
+
+unregister_blkdev:
+ unregister_blkdev(I2O_MAJOR, "i2o_block");
+
+free_mempool:
+ mempool_destroy(i2o_blk_req_pool.pool);
+
+free_slab:
+ kmem_cache_destroy(i2o_blk_req_pool.slab);
+
+exit:
+ return rc;
+};
+
+/**
+ * i2o_block_exit - Block OSM exit function
+ *
+ * Unregisters Block OSM from I2O core, unregisters i2o_block block device
+ * and frees the mempool and slab.
+ */
+static void __exit i2o_block_exit(void)
+{
+ /* Unregister I2O Block OSM from I2O core */
+ i2o_driver_unregister(&i2o_block_driver);
+
+ /* Unregister block device */
+ unregister_blkdev(I2O_MAJOR, "i2o_block");
+
+ /* Free request mempool and slab */
+ mempool_destroy(i2o_blk_req_pool.pool);
+ kmem_cache_destroy(i2o_blk_req_pool.slab);
+};
+
+
+MODULE_AUTHOR("Red Hat");
+MODULE_DESCRIPTION("I2O Block Device OSM");
+MODULE_LICENSE("GPL");
+
+
+module_init(i2o_block_init);
+module_exit(i2o_block_exit);
diff -puN /dev/null drivers/message/i2o/block-osm.h
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/block-osm.h Tue Jul 27 14:06:32 2004
@@ -0,0 +1,99 @@
+/*
+ * Block OSM structures/API
+ *
+ * Copyright (C) 1999-2002 Red Hat Software
+ *
+ * Written by Alan Cox, Building Number Three Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * For the purpose of avoiding doubt the preferred form of the work
+ * for making modifications shall be a standards compliant form such
+ * gzipped tar and not one requiring a proprietary or patent encumbered
+ * tool to unpack.
+ *
+ * Fixes/additions:
+ * Steve Ralston:
+ * Multiple device handling error fixes,
+ * Added a queue depth.
+ * Alan Cox:
+ * FC920 has an rmw bug. Dont or in the end marker.
+ * Removed queue walk, fixed for 64bitness.
+ * Rewrote much of the code over time
+ * Added indirect block lists
+ * Handle 64K limits on many controllers
+ * Don't use indirects on the Promise (breaks)
+ * Heavily chop down the queue depths
+ * Deepak Saxena:
+ * Independent queues per IOP
+ * Support for dynamic device creation/deletion
+ * Code cleanup
+ * Support for larger I/Os through merge* functions
+ * (taken from DAC960 driver)
+ * Boji T Kannanthanam:
+ * Set the I2O Block devices to be detected in increasing
+ * order of TIDs during boot.
+ * Search and set the I2O block device that we boot off
+ * from as the first device to be claimed (as /dev/i2o/hda)
+ * Properly attach/detach I2O gendisk structure from the
+ * system gendisk list. The I2O block devices now appear in
+ * /proc/partitions.
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Minor bugfixes for 2.6.
+ */
+
+#ifndef I2O_BLOCK_OSM_H
+#define I2O_BLOCK_OSM_H
+
+#define I2O_BLOCK_RETRY_TIME HZ/4
+#define I2O_BLOCK_MAX_OPEN_REQUESTS 50
+
+/* I2O Block OSM mempool struct */
+struct i2o_block_mempool {
+ kmem_cache_t *slab;
+ mempool_t *pool;
+};
+
+/* I2O Block device descriptor */
+struct i2o_block_device {
+ struct i2o_device *i2o_dev; /* pointer to I2O device */
+ struct gendisk *gd;
+ spinlock_t lock; /* queue lock */
+ struct list_head open_queue; /* list of transfered, but unfinished
+ requests */
+ unsigned int open_queue_depth; /* number of requests in the queue */
+
+ int rcache; /* read cache flags */
+ int wcache; /* write cache flags */
+ int flags;
+ int power; /* power state */
+ int media_change_flag; /* media changed flag */
+};
+
+/* I2O Block device request */
+struct i2o_block_request
+{
+ struct list_head queue;
+ struct request *req; /* corresponding request */
+ struct i2o_block_device *i2o_blk_dev; /* I2O block device */
+ int sg_dma_direction; /* direction of DMA buffer read/write */
+ int sg_nents; /* number of SG elements */
+ struct scatterlist sg_table[I2O_MAX_SEGMENTS]; /* SG table */
+};
+
+/* I2O Block device delayed request */
+struct i2o_block_delayed_request
+{
+ struct work_struct work;
+ struct request_queue *queue;
+};
+
+#endif
diff -puN /dev/null drivers/message/i2o/config-osm.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/config-osm.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,1206 @@
+/*
+ * I2O Configuration Interface Driver
+ *
+ * (C) Copyright 1999-2002 Red Hat
+ *
+ * Written by Alan Cox, Building Number Three Ltd
+ *
+ * Fixes/additions:
+ * Deepak Saxena (04/20/1999):
+ * Added basic ioctl() support
+ * Deepak Saxena (06/07/1999):
+ * Added software download ioctl (still testing)
+ * Auvo H�kkinen (09/10/1999):
+ * Changes to i2o_cfg_reply(), ioctl_parms()
+ * Added ioct_validate()
+ * Taneli V�h�kangas (09/30/1999):
+ * Fixed ioctl_swdl()
+ * Taneli V�h�kangas (10/04/1999):
+ * Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel()
+ * Deepak Saxena (11/18/1999):
+ * Added event managmenet support
+ * Alan Cox <alan@redhat.com>:
+ * 2.4 rewrite ported to 2.5
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Added pass-thru support for Adaptec's raidutils
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/i2o.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/spinlock.h>
+#include <linux/smp_lock.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <linux/ioctl32.h>
+#include <linux/syscalls.h>
+
+
+#undef DEBUG
+#define DEBUG 1
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+
+extern int i2o_parm_issue(struct i2o_device *, int, void *, int, void *, int);
+
+static spinlock_t i2o_config_lock = SPIN_LOCK_UNLOCKED;
+struct wait_queue *i2o_wait_queue;
+
+#define MODINC(x,y) ((x) = ((x) + 1) % (y))
+
+struct sg_simple_element {
+ u32 flag_count;
+ u32 addr_bus;
+};
+
+struct i2o_cfg_info
+{
+ struct file* fp;
+ struct fasync_struct *fasync;
+ struct i2o_evt_info event_q[I2O_EVT_Q_LEN];
+ u16 q_in; // Queue head index
+ u16 q_out; // Queue tail index
+ u16 q_len; // Queue length
+ u16 q_lost; // Number of lost events
+ ulong q_id; // Event queue ID...used as tx_context
+ struct i2o_cfg_info *next;
+};
+static struct i2o_cfg_info *open_files = NULL;
+static ulong i2o_cfg_info_id = 0;
+
+static int i2o_cfg_getiops(unsigned long);
+static int i2o_cfg_gethrt(unsigned long);
+static int i2o_cfg_getlct(unsigned long);
+static int i2o_cfg_parms(unsigned long, unsigned int);
+static int i2o_cfg_swdl(unsigned long);
+static int i2o_cfg_swul(unsigned long);
+static int i2o_cfg_swdel(unsigned long);
+static int i2o_cfg_validate(unsigned long);
+static int i2o_cfg_evt_reg(unsigned long, struct file *);
+static int i2o_cfg_evt_get(unsigned long, struct file *);
+#if BITS_PER_LONG != 64
+static int i2o_cfg_passthru(unsigned long);
+#endif
+static int cfg_fasync(int, struct file*, int);
+
+#if 0
+/*
+ * This is the callback for any message we have posted. The message itself
+ * will be returned to the message pool when we return from the IRQ
+ *
+ * This runs in irq context so be short and sweet.
+ */
+static void i2o_cfg_reply(struct i2o_handler *h, struct i2o_controller *c, struct i2o_message *m)
+{
+ u32 *msg = (u32 *)m;
+
+ if (msg[0] & MSG_FAIL) {
+ u32 *preserved_msg = (u32*)(c->msg_virt + msg[7]);
+
+ printk(KERN_ERR "i2o_config: IOP failed to process the msg.\n");
+
+ /* Release the preserved msg frame by resubmitting it as a NOP */
+
+ preserved_msg[0] = THREE_WORD_MSG_SIZE | SGL_OFFSET_0;
+ preserved_msg[1] = I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0;
+ preserved_msg[2] = 0;
+ i2o_post_message(c, msg[7]);
+ }
+
+ if (msg[4] >> 24) // ReqStatus != SUCCESS
+ i2o_report_status(KERN_INFO,"i2o_config", msg);
+
+ if(m->function == I2O_CMD_UTIL_EVT_REGISTER)
+ {
+ struct i2o_cfg_info *inf;
+
+ for(inf = open_files; inf; inf = inf->next)
+ if(inf->q_id == i2o_cntxt_list_get(c, msg[3]))
+ break;
+
+ //
+ // If this is the case, it means that we're getting
+ // events for a file descriptor that's been close()'d
+ // w/o the user unregistering for events first.
+ // The code currently assumes that the user will
+ // take care of unregistering for events before closing
+ // a file.
+ //
+ // TODO:
+ // Should we track event registartion and deregister
+ // for events when a file is close()'d so this doesn't
+ // happen? That would get rid of the search through
+ // the linked list since file->private_data could point
+ // directly to the i2o_config_info data structure...but
+ // it would mean having all sorts of tables to track
+ // what each file is registered for...I think the
+ // current method is simpler. - DS
+ //
+ if(!inf)
+ return;
+
+ inf->event_q[inf->q_in].id.iop = c->unit;
+ inf->event_q[inf->q_in].id.tid = m->target_tid;
+ inf->event_q[inf->q_in].id.evt_mask = msg[4];
+
+ //
+ // Data size = msg size - reply header
+ //
+ inf->event_q[inf->q_in].data_size = (m->size - 5) * 4;
+ if(inf->event_q[inf->q_in].data_size)
+ memcpy(inf->event_q[inf->q_in].evt_data,
+ (unsigned char *)(msg + 5),
+ inf->event_q[inf->q_in].data_size);
+
+ spin_lock(&i2o_config_lock);
+ MODINC(inf->q_in, I2O_EVT_Q_LEN);
+ if(inf->q_len == I2O_EVT_Q_LEN)
+ {
+ MODINC(inf->q_out, I2O_EVT_Q_LEN);
+ inf->q_lost++;
+ }
+ else
+ {
+ // Keep I2OEVTGET on another CPU from touching this
+ inf->q_len++;
+ }
+ spin_unlock(&i2o_config_lock);
+
+
+// printk(KERN_INFO "File %p w/id %d has %d events\n",
+// inf->fp, inf->q_id, inf->q_len);
+
+ kill_fasync(&inf->fasync, SIGIO, POLL_IN);
+ }
+
+ return;
+}
+#endif
+
+/*
+ * Each of these describes an i2o message handler. They are
+ * multiplexed by the i2o_core code
+ */
+
+struct i2o_driver i2o_config_driver = {
+ .name = "Config-OSM"
+};
+
+/*
+ * IOCTL Handler
+ */
+static int i2o_cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
+ unsigned long arg)
+{
+ int ret;
+
+ switch(cmd)
+ {
+ case I2OGETIOPS:
+ ret = i2o_cfg_getiops(arg);
+ break;
+
+ case I2OHRTGET:
+ ret = i2o_cfg_gethrt(arg);
+ break;
+
+ case I2OLCTGET:
+ ret = i2o_cfg_getlct(arg);
+ break;
+
+ case I2OPARMSET:
+ ret = i2o_cfg_parms(arg, I2OPARMSET);
+ break;
+
+ case I2OPARMGET:
+ ret = i2o_cfg_parms(arg, I2OPARMGET);
+ break;
+
+ case I2OSWDL:
+ ret = i2o_cfg_swdl(arg);
+ break;
+
+ case I2OSWUL:
+ ret = i2o_cfg_swul(arg);
+ break;
+
+ case I2OSWDEL:
+ ret = i2o_cfg_swdel(arg);
+ break;
+
+ case I2OVALIDATE:
+ ret = i2o_cfg_validate(arg);
+ break;
+
+ case I2OEVTREG:
+ ret = i2o_cfg_evt_reg(arg, fp);
+ break;
+
+ case I2OEVTGET:
+ ret = i2o_cfg_evt_get(arg, fp);
+ break;
+
+#if BITS_PER_LONG != 64
+ case I2OPASSTHRU:
+ ret = i2o_cfg_passthru(arg);
+ break;
+#endif
+
+ default:
+ DBG("i2o_config: unknown ioctl called!\n");
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int i2o_cfg_getiops(unsigned long arg)
+{
+ struct i2o_controller *c;
+ u8 __user *user_iop_table = (void __user *)arg;
+ u8 tmp[MAX_I2O_CONTROLLERS];
+
+ memset(tmp, 0, MAX_I2O_CONTROLLERS);
+
+ if(!access_ok(VERIFY_WRITE, user_iop_table, MAX_I2O_CONTROLLERS))
+ return -EFAULT;
+
+ list_for_each_entry(c, &i2o_controllers, list)
+ tmp[c->unit] = 1;
+
+ __copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS);
+
+ return 0;
+};
+
+static int i2o_cfg_gethrt(unsigned long arg)
+{
+ struct i2o_controller *c;
+ struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
+ struct i2o_cmd_hrtlct kcmd;
+ i2o_hrt *hrt;
+ int len;
+ u32 reslen;
+ int ret = 0;
+
+ if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
+ return -EFAULT;
+
+ if(get_user(reslen, kcmd.reslen) < 0)
+ return -EFAULT;
+
+ if(kcmd.resbuf == NULL)
+ return -EFAULT;
+
+ c = i2o_find_iop(kcmd.iop);
+ if(!c)
+ return -ENXIO;
+
+ hrt = (i2o_hrt *)c->hrt.virt;
+
+ len = 8 + ((hrt->entry_len * hrt->num_entries) << 2);
+
+ /* We did a get user...so assuming mem is ok...is this bad? */
+ put_user(len, kcmd.reslen);
+ if(len > reslen)
+ ret = -ENOBUFS;
+ if(copy_to_user(kcmd.resbuf, (void*)hrt, len))
+ ret = -EFAULT;
+
+ return ret;
+};
+
+static int i2o_cfg_getlct(unsigned long arg)
+{
+ struct i2o_controller *c;
+ struct i2o_cmd_hrtlct __user *cmd = (struct i2o_cmd_hrtlct __user *)arg;
+ struct i2o_cmd_hrtlct kcmd;
+ i2o_lct *lct;
+ int len;
+ int ret = 0;
+ u32 reslen;
+
+ if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
+ return -EFAULT;
+
+ if(get_user(reslen, kcmd.reslen) < 0)
+ return -EFAULT;
+
+ if(kcmd.resbuf == NULL)
+ return -EFAULT;
+
+ c = i2o_find_iop(kcmd.iop);
+ if(!c)
+ return -ENXIO;
+
+ lct = (i2o_lct *)c->lct;
+
+ len = (unsigned int)lct->table_size << 2;
+ put_user(len, kcmd.reslen);
+ if(len > reslen)
+ ret = -ENOBUFS;
+ else if(copy_to_user(kcmd.resbuf, lct, len))
+ ret = -EFAULT;
+
+ return ret;
+};
+
+static int i2o_cfg_parms(unsigned long arg, unsigned int type)
+{
+ int ret = 0;
+ struct i2o_controller *c;
+ struct i2o_device *dev;
+ struct i2o_cmd_psetget __user *cmd =(struct i2o_cmd_psetget __user*)arg;
+ struct i2o_cmd_psetget kcmd;
+ u32 reslen;
+ u8 *ops;
+ u8 *res;
+ int len = 0;
+
+ u32 i2o_cmd = (type == I2OPARMGET ?
+ I2O_CMD_UTIL_PARAMS_GET :
+ I2O_CMD_UTIL_PARAMS_SET);
+
+ if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
+ return -EFAULT;
+
+ if(get_user(reslen, kcmd.reslen))
+ return -EFAULT;
+
+ c = i2o_find_iop(kcmd.iop);
+ if(!c)
+ return -ENXIO;
+
+ dev = i2o_iop_find_device(c, kcmd.tid);
+ if(!dev)
+ return -ENXIO;
+
+ ops = (u8*)kmalloc(kcmd.oplen, GFP_KERNEL);
+ if(!ops)
+ return -ENOMEM;
+
+ if(copy_from_user(ops, kcmd.opbuf, kcmd.oplen)) {
+ kfree(ops);
+ return -EFAULT;
+ }
+
+ /*
+ * It's possible to have a _very_ large table
+ * and that the user asks for all of it at once...
+ */
+ res = (u8*)kmalloc(65536, GFP_KERNEL);
+ if(!res) {
+ kfree(ops);
+ return -ENOMEM;
+ }
+
+ len = i2o_parm_issue(dev, i2o_cmd, ops, kcmd.oplen, res, 65536);
+ kfree(ops);
+
+ if (len < 0) {
+ kfree(res);
+ return -EAGAIN;
+ }
+
+ put_user(len, kcmd.reslen);
+ if(len > reslen)
+ ret = -ENOBUFS;
+ else if(copy_to_user(kcmd.resbuf, res, len))
+ ret = -EFAULT;
+
+ kfree(res);
+
+ return ret;
+};
+
+static int i2o_cfg_swdl(unsigned long arg)
+{
+ struct i2o_sw_xfer kxfer;
+ struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
+ unsigned char maxfrag = 0, curfrag = 1;
+ struct i2o_dma buffer;
+ struct i2o_message *msg;
+ u32 m;
+ unsigned int status = 0, swlen = 0, fragsize = 8192;
+ struct i2o_controller *c;
+
+ if(copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
+ return -EFAULT;
+
+ if(get_user(swlen, kxfer.swlen) < 0)
+ return -EFAULT;
+
+ if(get_user(maxfrag, kxfer.maxfrag) < 0)
+ return -EFAULT;
+
+ if(get_user(curfrag, kxfer.curfrag) < 0)
+ return -EFAULT;
+
+ if(curfrag==maxfrag)
+ fragsize = swlen-(maxfrag-1)*8192;
+
+ if(!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
+ return -EFAULT;
+
+ c = i2o_find_iop(kxfer.iop);
+ if(!c)
+ return -ENXIO;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -EBUSY;
+
+ if(i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
+ i2o_msg_nop(c, m);
+ return -ENOMEM;
+ }
+
+ __copy_from_user(buffer.virt, kxfer.buf, fragsize);
+
+ writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->head[0]);
+ writel(I2O_CMD_SW_DOWNLOAD<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+ writel(i2o_config_driver.context, &msg->head[2]);
+ writel(0, &msg->head[3]);
+ writel((((u32)kxfer.flags)<<24) | (((u32)kxfer.sw_type)<<16) |
+ (((u32)maxfrag)<<8) | (((u32)curfrag)), &msg->body[0]);
+ writel(swlen, &msg->body[1]);
+ writel(kxfer.sw_id, &msg->body[2]);
+ writel(0xD0000000 | fragsize, &msg->body[3]);
+ writel(buffer.phys, &msg->body[4]);
+
+// printk("i2o_config: swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
+ status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
+
+ if(status != -ETIMEDOUT)
+ i2o_dma_free(&c->pdev->dev, &buffer);
+
+ if (status != I2O_POST_WAIT_OK) {
+ // it fails if you try and send frags out of order
+ // and for some yet unknown reasons too
+ printk(KERN_INFO "i2o_config: swdl failed, DetailedStatus = %d\n", status);
+ return status;
+ }
+
+ return 0;
+};
+
+static int i2o_cfg_swul(unsigned long arg)
+{
+ struct i2o_sw_xfer kxfer;
+ struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user *)arg;
+ unsigned char maxfrag = 0, curfrag = 1;
+ struct i2o_dma buffer;
+ struct i2o_message *msg;
+ u32 m;
+ unsigned int status = 0, swlen = 0, fragsize = 8192;
+ struct i2o_controller *c;
+
+ if(copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
+ return -EFAULT;
+
+ if(get_user(swlen, kxfer.swlen) < 0)
+ return -EFAULT;
+
+ if(get_user(maxfrag, kxfer.maxfrag) < 0)
+ return -EFAULT;
+
+ if(get_user(curfrag, kxfer.curfrag) < 0)
+ return -EFAULT;
+
+ if(curfrag==maxfrag) fragsize = swlen-(maxfrag-1)*8192;
+
+ if(!kxfer.buf || !access_ok(VERIFY_WRITE, kxfer.buf, fragsize))
+ return -EFAULT;
+
+ c = i2o_find_iop(kxfer.iop);
+ if(!c)
+ return -ENXIO;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -EBUSY;
+
+ if(i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize, GFP_KERNEL)) {
+ i2o_msg_nop(c, m);
+ return -ENOMEM;
+ }
+
+ writel(NINE_WORD_MSG_SIZE | SGL_OFFSET_7, &msg->head[0]);
+ writel(I2O_CMD_SW_UPLOAD<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+ writel(i2o_config_driver.context, &msg->head[2]);
+ writel(0, &msg->head[3]);
+ writel((u32)kxfer.flags<<24|(u32)kxfer.sw_type<<16|(u32)maxfrag<<8|(u32)curfrag, &msg->body[0]);
+ writel(swlen, &msg->body[1]);
+ writel(kxfer.sw_id, &msg->body[2]);
+ writel(0xD0000000 | fragsize, &msg->body[3]);
+ writel(buffer.phys, &msg->body[4]);
+
+// printk("i2o_config: swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
+ status = i2o_msg_post_wait_mem(c, m, 60, &buffer);
+
+ if (status != I2O_POST_WAIT_OK) {
+ if(status != -ETIMEDOUT)
+ i2o_dma_free(&c->pdev->dev, &buffer);
+
+ printk(KERN_INFO "i2o_config: swul failed, DetailedStatus = %d\n", status);
+ return status;
+ }
+
+ __copy_to_user(kxfer.buf, buffer.virt, fragsize);
+ i2o_dma_free(&c->pdev->dev, &buffer);
+
+ return 0;
+};
+
+static int i2o_cfg_swdel(unsigned long arg)
+{
+ struct i2o_controller *c;
+ struct i2o_sw_xfer kxfer;
+ struct i2o_sw_xfer __user *pxfer = (struct i2o_sw_xfer __user*)arg;
+ struct i2o_message *msg;
+ u32 m;
+ unsigned int swlen;
+ int token;
+
+ if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
+ return -EFAULT;
+
+ if (get_user(swlen, kxfer.swlen) < 0)
+ return -EFAULT;
+
+ c = i2o_find_iop(kxfer.iop);
+ if (!c)
+ return -ENXIO;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -EBUSY;
+
+ writel(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_SW_REMOVE<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+ writel(i2o_config_driver.context, &msg->head[2]);
+ writel(0, &msg->head[3]);
+ writel((u32)kxfer.flags<<24 | (u32)kxfer.sw_type<<16, &msg->body[0]);
+ writel(swlen, &msg->body[1]);
+ writel(kxfer.sw_id, &msg->body[2]);
+
+ token = i2o_msg_post_wait(c, m, 10);
+
+ if (token != I2O_POST_WAIT_OK) {
+ printk(KERN_INFO "i2o_config: swdel failed, DetailedStatus = %d\n", token);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+};
+
+static int i2o_cfg_validate(unsigned long arg)
+{
+ int token;
+ int iop = (int)arg;
+ struct i2o_message *msg;
+ u32 m;
+ struct i2o_controller *c;
+
+ c=i2o_find_iop(iop);
+ if(!c)
+ return -ENXIO;
+
+ m=i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -EBUSY;
+
+ writel(FOUR_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_CONFIG_VALIDATE<<24|HOST_TID<<12|iop, &msg->head[1]);
+ writel(i2o_config_driver.context, &msg->head[2]);
+ writel(0, &msg->head[3]);
+
+ token = i2o_msg_post_wait(c, m, 10);
+
+ if(token != I2O_POST_WAIT_OK) {
+ printk(KERN_INFO "Can't validate configuration, ErrorStatus = "
+ "%d\n", token);
+ return -ETIMEDOUT;
+ }
+
+ return 0;
+};
+
+static int i2o_cfg_evt_reg(unsigned long arg, struct file *fp)
+{
+ struct i2o_message *msg;
+ u32 m;
+ struct i2o_evt_id __user *pdesc = (struct i2o_evt_id __user *)arg;
+ struct i2o_evt_id kdesc;
+ struct i2o_controller *c;
+ struct i2o_device *d;
+
+ if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
+ return -EFAULT;
+
+ /* IOP exists? */
+ c = i2o_find_iop(kdesc.iop);
+ if(!c)
+ return -ENXIO;
+
+ /* Device exists? */
+ d = i2o_iop_find_device(c, kdesc.tid);
+ if(!d)
+ return -ENODEV;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -EBUSY;
+
+ writel(FOUR_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_UTIL_EVT_REGISTER<<24|HOST_TID<<12|kdesc.tid,
+ &msg->head[1]);
+ writel(i2o_config_driver.context, &msg->head[2]);
+ writel(i2o_cntxt_list_add(c, fp->private_data), &msg->head[3]);
+ writel(kdesc.evt_mask, &msg->body[0]);
+
+ i2o_msg_post(c, m);
+
+ return 0;
+}
+
+static int i2o_cfg_evt_get(unsigned long arg, struct file *fp)
+{
+ struct i2o_cfg_info *p = NULL;
+ struct i2o_evt_get __user *uget = (struct i2o_evt_get __user *)arg;
+ struct i2o_evt_get kget;
+ unsigned long flags;
+
+ for(p = open_files; p; p = p->next)
+ if(p->q_id == (ulong)fp->private_data)
+ break;
+
+ if(!p->q_len)
+ return -ENOENT;
+
+ memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
+ MODINC(p->q_out, I2O_EVT_Q_LEN);
+ spin_lock_irqsave(&i2o_config_lock, flags);
+ p->q_len--;
+ kget.pending = p->q_len;
+ kget.lost = p->q_lost;
+ spin_unlock_irqrestore(&i2o_config_lock, flags);
+
+ if(copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
+ return -EFAULT;
+ return 0;
+}
+
+#if BITS_PER_LONG == 64
+static int i2o_cfg_passthru32(unsigned fd, unsigned cmnd, unsigned long arg, struct file *file)
+{
+ struct i2o_cmd_passthru32 *cmd = (struct i2o_cmd_passthru32 *)arg;
+ struct i2o_controller *c;
+ u32 *user_msg = (u32*)(u64)cmd->msg;
+ u32 *reply = NULL;
+ u32 *user_reply = NULL;
+ u32 size = 0;
+ u32 reply_size = 0;
+ u32 rcode = 0;
+ struct i2o_dma sg_list[SG_TABLESIZE];
+ u32 sg_offset = 0;
+ u32 sg_count = 0;
+ u32 i = 0;
+ i2o_status_block *sb;
+ struct i2o_message *msg;
+ u32 m;
+
+ c = i2o_find_iop(cmd->iop);
+ if(!c) {
+ DBG("controller %d not found\n", cmd->iop);
+ return -ENXIO;
+ }
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+
+ sb = c->status_block.virt;
+
+ if(get_user(size, &user_msg[0])) {
+ printk(KERN_WARNING "unable to get size!\n");
+ return -EFAULT;
+ }
+ size = size>>16;
+
+ if(size > sb->inbound_frame_size) {
+ DBG("size of message > inbound_frame_size");
+ return -EFAULT;
+ }
+
+ user_reply = &user_msg[size];
+
+ size <<= 2; // Convert to bytes
+
+ /* Copy in the user's I2O command */
+ if(copy_from_user(msg, user_msg, size)) {
+ printk(KERN_WARNING "unable to copy user message\n");
+ return -EFAULT;
+ }
+ i2o_dump_message(msg);
+
+ if(get_user(reply_size, &user_reply[0])<0)
+ return -EFAULT;
+
+ reply_size >>= 16;
+ reply_size <<= 2;
+
+ reply = kmalloc(reply_size, GFP_KERNEL);
+ if(!reply) {
+ printk(KERN_WARNING"%s: Could not allocate reply buffer\n",c->name);
+ return -ENOMEM;
+ }
+ memset(reply, 0, reply_size);
+
+ sg_offset = (msg->head[0]>>4)&0x0f;
+
+ writel(i2o_config_driver.context, &msg->icntxt);
+ writel(i2o_cntxt_list_add(c, reply), &msg->tcntxt);
+
+ memset(sg_list,0, sizeof(sg_list[0])*SG_TABLESIZE);
+ if(sg_offset) {
+ struct sg_simple_element *sg;
+
+ if(sg_offset * 4 >= size) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ // TODO 64bit fix
+ sg = (struct sg_simple_element*) ((&msg->head[0])+sg_offset);
+ sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
+ if (sg_count > SG_TABLESIZE) {
+ printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", c->name,sg_count);
+ kfree (reply);
+ return -EINVAL;
+ }
+
+ for(i = 0; i < sg_count; i++) {
+ int sg_size;
+ struct i2o_dma *p;
+
+ if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
+ printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",c->name,i, sg[i].flag_count);
+ rcode = -EINVAL;
+ goto cleanup;
+ }
+ sg_size = sg[i].flag_count & 0xffffff;
+ p = &(sg_list[i]);
+ /* Allocate memory for the transfer */
+ if(i2o_dma_alloc(&c->pdev->dev, p, sg_size, PCI_DMA_BIDIRECTIONAL)) {
+ printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", c->name,sg_size,i,sg_count);
+ rcode = -ENOMEM;
+ goto cleanup;
+ }
+ /* Copy in the user's SG buffer if necessary */
+ if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
+ // TODO 64bit fix
+ if (copy_from_user(p->virt,(void*)(u64)sg[i].addr_bus, sg_size)) {
+ printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",c->name,i);
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ }
+ //TODO 64bit fix
+ sg[i].addr_bus = (u32)p->phys;
+ }
+ }
+
+ rcode = i2o_msg_post_wait(c, m, 60);
+ if(rcode)
+ goto cleanup;
+
+ if(sg_offset) {
+ u32 msg[128];
+ /* Copy back the Scatter Gather buffers back to user space */
+ u32 j;
+ // TODO 64bit fix
+ struct sg_simple_element* sg;
+ int sg_size;
+ printk(KERN_INFO "sg_offset\n");
+
+ // re-acquire the original message to handle correctly the sg copy operation
+ memset(&msg, 0, MSG_FRAME_SIZE*4);
+ // get user msg size in u32s
+ if (get_user(size, &user_msg[0])) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ size = size>>16;
+ size *= 4;
+ /* Copy in the user's I2O command */
+ if (copy_from_user (msg, user_msg, size)) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
+
+ // TODO 64bit fix
+ sg = (struct sg_simple_element*)(msg + sg_offset);
+ for (j = 0; j < sg_count; j++) {
+ /* Copy out the SG list to user's buffer if necessary */
+ if (!(sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
+ sg_size = sg[j].flag_count & 0xffffff;
+ // TODO 64bit fix
+ if (copy_to_user((void __user *)(u64)sg[j].addr_bus,sg_list[j].virt, sg_size)) {
+ printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",c->name, sg_list[j].virt, sg[j].addr_bus);
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ }
+ }
+ }
+
+ /* Copy back the reply to user space */
+ if (reply_size) {
+ // we wrote our own values for context - now restore the user supplied ones
+ printk(KERN_INFO "reply_size\n");
+ if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
+ printk(KERN_WARNING"%s: Could not copy message context FROM user\n",c->name);
+ rcode = -EFAULT;
+ }
+ if(copy_to_user(user_reply, reply, reply_size)) {
+ printk(KERN_WARNING"%s: Could not copy reply TO user\n",c->name);
+ rcode = -EFAULT;
+ }
+ }
+
+cleanup:
+ kfree(reply);
+ printk(KERN_INFO "rcode: %d\n", rcode);
+ return rcode;
+}
+
+#else
+
+static int i2o_cfg_passthru(unsigned long arg)
+{
+ struct i2o_cmd_passthru __user*cmd=(struct i2o_cmd_passthru __user*)arg;
+ struct i2o_controller *c;
+ u32 __user *user_msg = (u32 __user *)cmd->msg;
+ u32 *reply = NULL;
+ u32 __user *user_reply = NULL;
+ u32 size = 0;
+ u32 reply_size = 0;
+ u32 rcode = 0;
+ void *sg_list[SG_TABLESIZE];
+ u32 sg_offset = 0;
+ u32 sg_count = 0;
+ int sg_index = 0;
+ u32 i = 0;
+ void *p = NULL;
+ i2o_status_block *sb;
+ struct i2o_message *msg;
+ u32 m;
+
+ printk(KERN_INFO "iop: %d\n", cmd->iop);
+ c = i2o_find_iop(cmd->iop);
+ if(!c) {
+ DBG("controller %d not found\n", cmd->iop);
+ return -ENXIO;
+ }
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+
+ sb = c->status_block.virt;
+
+ if(get_user(size, &user_msg[0]))
+ return -EFAULT;
+ size = size>>16;
+
+ if(size > sb->inbound_frame_size) {
+ DBG("size of message > inbound_frame_size");
+ return -EFAULT;
+ }
+
+ user_reply = &user_msg[size];
+
+ size <<= 2; // Convert to bytes
+
+ /* Copy in the user's I2O command */
+ if(copy_from_user(msg, user_msg, size))
+ return -EFAULT;
+
+
+ if(get_user(reply_size, &user_reply[0])<0)
+ return -EFAULT;
+
+ reply_size >>= 16;
+ reply_size <<= 2;
+
+ reply = kmalloc(reply_size, GFP_KERNEL);
+ if(!reply) {
+ printk(KERN_WARNING"%s: Could not allocate reply buffer\n",c->name);
+ return -ENOMEM;
+ }
+ memset(reply, 0, reply_size);
+
+ sg_offset = (msg->head[0]>>4)&0x0f;
+
+ writel(i2o_config_driver.context, &msg->icntxt);
+ writel(i2o_cntxt_list_add(c, reply), &msg->tcntxt);
+
+ memset(sg_list,0, sizeof(sg_list[0])*SG_TABLESIZE);
+ if(sg_offset) {
+ struct sg_simple_element *sg;
+
+ if(sg_offset * 4 >= size) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ // TODO 64bit fix
+ sg = (struct sg_simple_element*) ((&msg->head[0])+sg_offset);
+ sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
+ if (sg_count > SG_TABLESIZE) {
+ printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", c->name,sg_count);
+ kfree (reply);
+ return -EINVAL;
+ }
+
+ for(i = 0; i < sg_count; i++) {
+ int sg_size;
+
+ if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
+ printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",c->name,i, sg[i].flag_count);
+ rcode = -EINVAL;
+ goto cleanup;
+ }
+ sg_size = sg[i].flag_count & 0xffffff;
+ /* Allocate memory for the transfer */
+ p = kmalloc(sg_size, GFP_KERNEL);
+ if (!p) {
+ printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", c->name,sg_size,i,sg_count);
+ rcode = -ENOMEM;
+ goto cleanup;
+ }
+ sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
+ /* Copy in the user's SG buffer if necessary */
+ if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
+ // TODO 64bit fix
+ if(copy_from_user(p,(void __user *)sg[i].addr_bus,sg_size)) {
+ printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",c->name,i);
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ }
+ //TODO 64bit fix
+ sg[i].addr_bus = virt_to_bus(p);
+ }
+ }
+
+ rcode = i2o_msg_post_wait(c, m, 60);
+ if(rcode)
+ goto cleanup;
+
+ if(sg_offset) {
+ u32 msg[128];
+ /* Copy back the Scatter Gather buffers back to user space */
+ u32 j;
+ // TODO 64bit fix
+ struct sg_simple_element* sg;
+ int sg_size;
+ printk(KERN_INFO "sg_offset\n");
+
+ // re-acquire the original message to handle correctly the sg copy operation
+ memset(&msg, 0, MSG_FRAME_SIZE*4);
+ // get user msg size in u32s
+ if (get_user(size, &user_msg[0])) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ size = size>>16;
+ size *= 4;
+ /* Copy in the user's I2O command */
+ if (copy_from_user (msg, user_msg, size)) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
+
+ // TODO 64bit fix
+ sg = (struct sg_simple_element*)(msg + sg_offset);
+ for (j = 0; j < sg_count; j++) {
+ /* Copy out the SG list to user's buffer if necessary */
+ if (!(sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
+ sg_size = sg[j].flag_count & 0xffffff;
+ // TODO 64bit fix
+ if (copy_to_user((void __user *)sg[j].addr_bus,sg_list[j], sg_size)) {
+ printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",c->name, sg_list[j], sg[j].addr_bus);
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ }
+ }
+ }
+
+ /* Copy back the reply to user space */
+ if (reply_size) {
+ // we wrote our own values for context - now restore the user supplied ones
+ printk(KERN_INFO "reply_size\n");
+ if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
+ printk(KERN_WARNING"%s: Could not copy message context FROM user\n",c->name);
+ rcode = -EFAULT;
+ }
+ if(copy_to_user(user_reply, reply, reply_size)) {
+ printk(KERN_WARNING"%s: Could not copy reply TO user\n",c->name);
+ rcode = -EFAULT;
+ }
+ }
+
+cleanup:
+ kfree(reply);
+ return rcode;
+}
+#endif
+
+static int cfg_open(struct inode *inode, struct file *file)
+{
+ struct i2o_cfg_info *tmp =
+ (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info), GFP_KERNEL);
+ unsigned long flags;
+
+ if(!tmp)
+ return -ENOMEM;
+
+ file->private_data = (void*)(i2o_cfg_info_id++);
+ tmp->fp = file;
+ tmp->fasync = NULL;
+ tmp->q_id = (ulong)file->private_data;
+ tmp->q_len = 0;
+ tmp->q_in = 0;
+ tmp->q_out = 0;
+ tmp->q_lost = 0;
+ tmp->next = open_files;
+
+ spin_lock_irqsave(&i2o_config_lock, flags);
+ open_files = tmp;
+ spin_unlock_irqrestore(&i2o_config_lock, flags);
+
+ return 0;
+}
+
+static int cfg_release(struct inode *inode, struct file *file)
+{
+ ulong id = (ulong)file->private_data;
+ struct i2o_cfg_info *p1, *p2;
+ unsigned long flags;
+
+ lock_kernel();
+ p1 = p2 = NULL;
+
+ spin_lock_irqsave(&i2o_config_lock, flags);
+ for(p1 = open_files; p1; )
+ {
+ if(p1->q_id == id)
+ {
+
+ if(p1->fasync)
+ cfg_fasync(-1, file, 0);
+ if(p2)
+ p2->next = p1->next;
+ else
+ open_files = p1->next;
+
+ kfree(p1);
+ break;
+ }
+ p2 = p1;
+ p1 = p1->next;
+ }
+ spin_unlock_irqrestore(&i2o_config_lock, flags);
+ unlock_kernel();
+
+ return 0;
+}
+
+static int cfg_fasync(int fd, struct file *fp, int on)
+{
+ ulong id = (ulong)fp->private_data;
+ struct i2o_cfg_info *p;
+
+ for(p = open_files; p; p = p->next)
+ if(p->q_id == id)
+ break;
+
+ if(!p)
+ return -EBADF;
+
+ return fasync_helper(fd, fp, on, &p->fasync);
+}
+
+static struct file_operations config_fops =
+{
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .ioctl = i2o_cfg_ioctl,
+ .open = cfg_open,
+ .release = cfg_release,
+ .fasync = cfg_fasync,
+};
+
+static struct miscdevice i2o_miscdev = {
+ I2O_MINOR,
+ "i2octl",
+ &config_fops
+};
+
+static int __init i2o_config_init(void)
+{
+ printk(KERN_INFO "I2O configuration manager v 0.04.\n");
+ printk(KERN_INFO " (C) Copyright 1999 Red Hat Software\n");
+
+ if(misc_register(&i2o_miscdev) < 0) {
+ printk(KERN_ERR "i2o_config: can't register device.\n");
+ return -EBUSY;
+ }
+ /*
+ * Install our handler
+ */
+ if(i2o_driver_register(&i2o_config_driver)) {
+ printk(KERN_ERR "i2o_config: handler register failed.\n");
+ misc_deregister(&i2o_miscdev);
+ return -EBUSY;
+ }
+
+#if BITS_PER_LONG ==64
+ register_ioctl32_conversion(I2OPASSTHRU32, i2o_cfg_passthru32);
+ register_ioctl32_conversion(I2OGETIOPS, (void *)sys_ioctl);
+#endif
+ return 0;
+}
+
+static void i2o_config_exit(void)
+{
+#if BITS_PER_LONG ==64
+ unregister_ioctl32_conversion(I2OPASSTHRU32);
+ unregister_ioctl32_conversion(I2OGETIOPS);
+#endif
+ misc_deregister(&i2o_miscdev);
+ i2o_driver_unregister(&i2o_config_driver);
+}
+
+MODULE_AUTHOR("Red Hat Software");
+MODULE_DESCRIPTION("I2O Configuration");
+MODULE_LICENSE("GPL");
+
+module_init(i2o_config_init);
+module_exit(i2o_config_exit);
diff -puN /dev/null drivers/message/i2o/debug.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/debug.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,576 @@
+#define DRIVERDEBUG 1
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/i2o.h>
+
+static int verbose;
+extern struct i2o_driver **i2o_drivers;
+extern unsigned int i2o_max_drivers;
+static void i2o_report_util_cmd(u8 cmd);
+static void i2o_report_exec_cmd(u8 cmd);
+void i2o_report_fail_status(u8 req_status, u32* msg);
+void i2o_report_common_status(u8 req_status);
+static void i2o_report_common_dsc(u16 detailed_status);
+
+#define DBG(x...) printk(x)
+
+void i2o_dump_status_block(i2o_status_block *sb)
+{
+ DBG("Organization ID: %d\n", sb->org_id);
+ DBG("IOP ID: %d\n", sb->iop_id);
+ DBG("Host Unit ID: %d\n", sb->host_unit_id);
+ DBG("Segment Number: %d\n", sb->segment_number);
+ DBG("I2O Version: %d\n", sb->i2o_version);
+ DBG("IOP State: %d\n", sb->iop_state);
+ DBG("Messanger Type: %d\n", sb->msg_type);
+ DBG("Inbound Frame Size: %d\n", sb->inbound_frame_size);
+ DBG("Init Code: %d\n", sb->init_code);
+ DBG("Max Inbound MFrames: %d\n", sb->max_inbound_frames);
+ DBG("Current Inbound MFrames: %d\n", sb->cur_inbound_frames);
+ DBG("Max Outbound MFrames: %d\n", sb->max_outbound_frames);
+ DBG("Product ID String: %s\n", sb->product_id);
+ DBG("Expected LCT Size: %d\n", sb->expected_lct_size);
+ DBG("IOP Capabilities: %d\n", sb->iop_capabilities);
+ DBG("Desired Private MemSize: %d\n", sb->desired_mem_size);
+ DBG("Current Private MemSize: %d\n", sb->current_mem_size);
+ DBG("Current Private MemBase: %d\n", sb->current_mem_base);
+ DBG("Desired Private IO Size: %d\n", sb->desired_io_size);
+ DBG("Current Private IO Size: %d\n", sb->current_io_size);
+ DBG("Current Private IO Base: %d\n", sb->current_io_base);
+};
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Report Cmd name, Request status, Detailed Status.
+ */
+void i2o_report_status(const char *severity, const char *str, struct i2o_message *m)
+{
+ u32 *msg = (u32 *)m;
+ u8 cmd = (msg[1]>>24)&0xFF;
+ u8 req_status = (msg[4]>>24)&0xFF;
+ u16 detailed_status = msg[4]&0xFFFF;
+ //struct i2o_driver *h = i2o_drivers[msg[2] & (i2o_max_drivers-1)];
+
+ if (cmd == I2O_CMD_UTIL_EVT_REGISTER)
+ return; // No status in this reply
+
+ printk("%s%s: ", severity, str);
+
+ if (cmd < 0x1F) // Utility cmd
+ i2o_report_util_cmd(cmd);
+
+ else if (cmd >= 0xA0 && cmd <= 0xEF) // Executive cmd
+ i2o_report_exec_cmd(cmd);
+ else
+ printk("Cmd = %0#2x, ", cmd); // Other cmds
+
+ if (msg[0] & MSG_FAIL) {
+ i2o_report_fail_status(req_status, msg);
+ return;
+ }
+
+ i2o_report_common_status(req_status);
+
+ if (cmd < 0x1F || (cmd >= 0xA0 && cmd <= 0xEF))
+ i2o_report_common_dsc(detailed_status);
+ else
+ printk(" / DetailedStatus = %0#4x.\n", detailed_status);
+}
+
+/* Used to dump a message to syslog during debugging */
+void i2o_dump_message(struct i2o_message *m)
+{
+ u32 *msg = (u32 *)m;
+#ifdef DRIVERDEBUG
+ int i;
+ printk(KERN_INFO "Dumping I2O message size %d @ %p\n",
+ msg[0]>>16&0xffff, msg);
+ for(i = 0; i < ((msg[0]>>16)&0xffff); i++)
+ printk(KERN_INFO " msg[%d] = %0#10x\n", i, msg[i]);
+#endif
+}
+
+/**
+ * i2o_report_controller_unit - print information about a tid
+ * @c: controller
+ * @d: device
+ *
+ * Dump an information block associated with a given unit (TID). The
+ * tables are read and a block of text is output to printk that is
+ * formatted intended for the user.
+ */
+
+void i2o_report_controller_unit(struct i2o_controller *c, struct i2o_device *d)
+{
+ char buf[64];
+ char str[22];
+ int ret;
+
+ if(verbose==0)
+ return;
+
+ printk(KERN_INFO "Target ID %03x.\n", d->lct_data.tid);
+ if((ret=i2o_parm_field_get(d, 0xF100, 3, buf, 16))>=0) {
+ buf[16]=0;
+ printk(KERN_INFO " Vendor: %s\n", buf);
+ }
+ if((ret=i2o_parm_field_get(d, 0xF100, 4, buf, 16))>=0) {
+ buf[16]=0;
+ printk(KERN_INFO " Device: %s\n", buf);
+ }
+ if(i2o_parm_field_get(d, 0xF100, 5, buf, 16)>=0) {
+ buf[16]=0;
+ printk(KERN_INFO " Description: %s\n", buf);
+ }
+ if((ret=i2o_parm_field_get(d, 0xF100, 6, buf, 8))>=0) {
+ buf[8]=0;
+ printk(KERN_INFO " Rev: %s\n", buf);
+ }
+
+ printk(KERN_INFO " Class: ");
+ //sprintf(str, "%-21s", i2o_get_class_name(d->lct_data.class_id));
+ printk("%s\n", str);
+
+ printk(KERN_INFO " Subclass: 0x%04X\n", d->lct_data.sub_class);
+ printk(KERN_INFO " Flags: ");
+
+ if(d->lct_data.device_flags&(1<<0))
+ printk("C"); // ConfigDialog requested
+ if(d->lct_data.device_flags&(1<<1))
+ printk("U"); // Multi-user capable
+ if(!(d->lct_data.device_flags&(1<<4)))
+ printk("P"); // Peer service enabled!
+ if(!(d->lct_data.device_flags&(1<<5)))
+ printk("M"); // Mgmt service enabled!
+ printk("\n");
+}
+
+/*
+MODULE_PARM(verbose, "i");
+MODULE_PARM_DESC(verbose, "Verbose diagnostics");
+*/
+/*
+ * Used for error reporting/debugging purposes.
+ * Following fail status are common to all classes.
+ * The preserved message must be handled in the reply handler.
+ */
+void i2o_report_fail_status(u8 req_status, u32* msg)
+{
+ static char *FAIL_STATUS[] = {
+ "0x80", /* not used */
+ "SERVICE_SUSPENDED", /* 0x81 */
+ "SERVICE_TERMINATED", /* 0x82 */
+ "CONGESTION",
+ "FAILURE",
+ "STATE_ERROR",
+ "TIME_OUT",
+ "ROUTING_FAILURE",
+ "INVALID_VERSION",
+ "INVALID_OFFSET",
+ "INVALID_MSG_FLAGS",
+ "FRAME_TOO_SMALL",
+ "FRAME_TOO_LARGE",
+ "INVALID_TARGET_ID",
+ "INVALID_INITIATOR_ID",
+ "INVALID_INITIATOR_CONTEX", /* 0x8F */
+ "UNKNOWN_FAILURE" /* 0xFF */
+ };
+
+ if (req_status == I2O_FSC_TRANSPORT_UNKNOWN_FAILURE)
+ printk("TRANSPORT_UNKNOWN_FAILURE (%0#2x)\n.", req_status);
+ else
+ printk("TRANSPORT_%s.\n", FAIL_STATUS[req_status & 0x0F]);
+
+ /* Dump some details */
+
+ printk(KERN_ERR " InitiatorId = %d, TargetId = %d\n",
+ (msg[1] >> 12) & 0xFFF, msg[1] & 0xFFF);
+ printk(KERN_ERR " LowestVersion = 0x%02X, HighestVersion = 0x%02X\n",
+ (msg[4] >> 8) & 0xFF, msg[4] & 0xFF);
+ printk(KERN_ERR " FailingHostUnit = 0x%04X, FailingIOP = 0x%03X\n",
+ msg[5] >> 16, msg[5] & 0xFFF);
+
+ printk(KERN_ERR " Severity: 0x%02X ", (msg[4] >> 16) & 0xFF);
+ if (msg[4] & (1<<16))
+ printk("(FormatError), "
+ "this msg can never be delivered/processed.\n");
+ if (msg[4] & (1<<17))
+ printk("(PathError), "
+ "this msg can no longer be delivered/processed.\n");
+ if (msg[4] & (1<<18))
+ printk("(PathState), "
+ "the system state does not allow delivery.\n");
+ if (msg[4] & (1<<19))
+ printk("(Congestion), resources temporarily not available;"
+ "do not retry immediately.\n");
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following reply status are common to all classes.
+ */
+void i2o_report_common_status(u8 req_status)
+{
+ static char *REPLY_STATUS[] = {
+ "SUCCESS",
+ "ABORT_DIRTY",
+ "ABORT_NO_DATA_TRANSFER",
+ "ABORT_PARTIAL_TRANSFER",
+ "ERROR_DIRTY",
+ "ERROR_NO_DATA_TRANSFER",
+ "ERROR_PARTIAL_TRANSFER",
+ "PROCESS_ABORT_DIRTY",
+ "PROCESS_ABORT_NO_DATA_TRANSFER",
+ "PROCESS_ABORT_PARTIAL_TRANSFER",
+ "TRANSACTION_ERROR",
+ "PROGRESS_REPORT"
+ };
+
+ if (req_status >= ARRAY_SIZE(REPLY_STATUS))
+ printk("RequestStatus = %0#2x", req_status);
+ else
+ printk("%s", REPLY_STATUS[req_status]);
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following detailed status are valid for executive class,
+ * utility class, DDM class and for transaction error replies.
+ */
+static void i2o_report_common_dsc(u16 detailed_status)
+{
+ static char *COMMON_DSC[] = {
+ "SUCCESS",
+ "0x01", // not used
+ "BAD_KEY",
+ "TCL_ERROR",
+ "REPLY_BUFFER_FULL",
+ "NO_SUCH_PAGE",
+ "INSUFFICIENT_RESOURCE_SOFT",
+ "INSUFFICIENT_RESOURCE_HARD",
+ "0x08", // not used
+ "CHAIN_BUFFER_TOO_LARGE",
+ "UNSUPPORTED_FUNCTION",
+ "DEVICE_LOCKED",
+ "DEVICE_RESET",
+ "INAPPROPRIATE_FUNCTION",
+ "INVALID_INITIATOR_ADDRESS",
+ "INVALID_MESSAGE_FLAGS",
+ "INVALID_OFFSET",
+ "INVALID_PARAMETER",
+ "INVALID_REQUEST",
+ "INVALID_TARGET_ADDRESS",
+ "MESSAGE_TOO_LARGE",
+ "MESSAGE_TOO_SMALL",
+ "MISSING_PARAMETER",
+ "TIMEOUT",
+ "UNKNOWN_ERROR",
+ "UNKNOWN_FUNCTION",
+ "UNSUPPORTED_VERSION",
+ "DEVICE_BUSY",
+ "DEVICE_NOT_AVAILABLE"
+ };
+
+ if (detailed_status > I2O_DSC_DEVICE_NOT_AVAILABLE)
+ printk(" / DetailedStatus = %0#4x.\n", detailed_status);
+ else
+ printk(" / %s.\n", COMMON_DSC[detailed_status]);
+}
+
+/*
+ * Used for error reporting/debugging purposes
+ */
+static void i2o_report_util_cmd(u8 cmd)
+{
+ switch (cmd) {
+ case I2O_CMD_UTIL_NOP:
+ printk("UTIL_NOP, ");
+ break;
+ case I2O_CMD_UTIL_ABORT:
+ printk("UTIL_ABORT, ");
+ break;
+ case I2O_CMD_UTIL_CLAIM:
+ printk("UTIL_CLAIM, ");
+ break;
+ case I2O_CMD_UTIL_RELEASE:
+ printk("UTIL_CLAIM_RELEASE, ");
+ break;
+ case I2O_CMD_UTIL_CONFIG_DIALOG:
+ printk("UTIL_CONFIG_DIALOG, ");
+ break;
+ case I2O_CMD_UTIL_DEVICE_RESERVE:
+ printk("UTIL_DEVICE_RESERVE, ");
+ break;
+ case I2O_CMD_UTIL_DEVICE_RELEASE:
+ printk("UTIL_DEVICE_RELEASE, ");
+ break;
+ case I2O_CMD_UTIL_EVT_ACK:
+ printk("UTIL_EVENT_ACKNOWLEDGE, ");
+ break;
+ case I2O_CMD_UTIL_EVT_REGISTER:
+ printk("UTIL_EVENT_REGISTER, ");
+ break;
+ case I2O_CMD_UTIL_LOCK:
+ printk("UTIL_LOCK, ");
+ break;
+ case I2O_CMD_UTIL_LOCK_RELEASE:
+ printk("UTIL_LOCK_RELEASE, ");
+ break;
+ case I2O_CMD_UTIL_PARAMS_GET:
+ printk("UTIL_PARAMS_GET, ");
+ break;
+ case I2O_CMD_UTIL_PARAMS_SET:
+ printk("UTIL_PARAMS_SET, ");
+ break;
+ case I2O_CMD_UTIL_REPLY_FAULT_NOTIFY:
+ printk("UTIL_REPLY_FAULT_NOTIFY, ");
+ break;
+ default:
+ printk("Cmd = %0#2x, ",cmd);
+ }
+}
+
+/*
+ * Used for error reporting/debugging purposes
+ */
+static void i2o_report_exec_cmd(u8 cmd)
+{
+ switch (cmd) {
+ case I2O_CMD_ADAPTER_ASSIGN:
+ printk("EXEC_ADAPTER_ASSIGN, ");
+ break;
+ case I2O_CMD_ADAPTER_READ:
+ printk("EXEC_ADAPTER_READ, ");
+ break;
+ case I2O_CMD_ADAPTER_RELEASE:
+ printk("EXEC_ADAPTER_RELEASE, ");
+ break;
+ case I2O_CMD_BIOS_INFO_SET:
+ printk("EXEC_BIOS_INFO_SET, ");
+ break;
+ case I2O_CMD_BOOT_DEVICE_SET:
+ printk("EXEC_BOOT_DEVICE_SET, ");
+ break;
+ case I2O_CMD_CONFIG_VALIDATE:
+ printk("EXEC_CONFIG_VALIDATE, ");
+ break;
+ case I2O_CMD_CONN_SETUP:
+ printk("EXEC_CONN_SETUP, ");
+ break;
+ case I2O_CMD_DDM_DESTROY:
+ printk("EXEC_DDM_DESTROY, ");
+ break;
+ case I2O_CMD_DDM_ENABLE:
+ printk("EXEC_DDM_ENABLE, ");
+ break;
+ case I2O_CMD_DDM_QUIESCE:
+ printk("EXEC_DDM_QUIESCE, ");
+ break;
+ case I2O_CMD_DDM_RESET:
+ printk("EXEC_DDM_RESET, ");
+ break;
+ case I2O_CMD_DDM_SUSPEND:
+ printk("EXEC_DDM_SUSPEND, ");
+ break;
+ case I2O_CMD_DEVICE_ASSIGN:
+ printk("EXEC_DEVICE_ASSIGN, ");
+ break;
+ case I2O_CMD_DEVICE_RELEASE:
+ printk("EXEC_DEVICE_RELEASE, ");
+ break;
+ case I2O_CMD_HRT_GET:
+ printk("EXEC_HRT_GET, ");
+ break;
+ case I2O_CMD_ADAPTER_CLEAR:
+ printk("EXEC_IOP_CLEAR, ");
+ break;
+ case I2O_CMD_ADAPTER_CONNECT:
+ printk("EXEC_IOP_CONNECT, ");
+ break;
+ case I2O_CMD_ADAPTER_RESET:
+ printk("EXEC_IOP_RESET, ");
+ break;
+ case I2O_CMD_LCT_NOTIFY:
+ printk("EXEC_LCT_NOTIFY, ");
+ break;
+ case I2O_CMD_OUTBOUND_INIT:
+ printk("EXEC_OUTBOUND_INIT, ");
+ break;
+ case I2O_CMD_PATH_ENABLE:
+ printk("EXEC_PATH_ENABLE, ");
+ break;
+ case I2O_CMD_PATH_QUIESCE:
+ printk("EXEC_PATH_QUIESCE, ");
+ break;
+ case I2O_CMD_PATH_RESET:
+ printk("EXEC_PATH_RESET, ");
+ break;
+ case I2O_CMD_STATIC_MF_CREATE:
+ printk("EXEC_STATIC_MF_CREATE, ");
+ break;
+ case I2O_CMD_STATIC_MF_RELEASE:
+ printk("EXEC_STATIC_MF_RELEASE, ");
+ break;
+ case I2O_CMD_STATUS_GET:
+ printk("EXEC_STATUS_GET, ");
+ break;
+ case I2O_CMD_SW_DOWNLOAD:
+ printk("EXEC_SW_DOWNLOAD, ");
+ break;
+ case I2O_CMD_SW_UPLOAD:
+ printk("EXEC_SW_UPLOAD, ");
+ break;
+ case I2O_CMD_SW_REMOVE:
+ printk("EXEC_SW_REMOVE, ");
+ break;
+ case I2O_CMD_SYS_ENABLE:
+ printk("EXEC_SYS_ENABLE, ");
+ break;
+ case I2O_CMD_SYS_MODIFY:
+ printk("EXEC_SYS_MODIFY, ");
+ break;
+ case I2O_CMD_SYS_QUIESCE:
+ printk("EXEC_SYS_QUIESCE, ");
+ break;
+ case I2O_CMD_SYS_TAB_SET:
+ printk("EXEC_SYS_TAB_SET, ");
+ break;
+ default:
+ printk("Cmd = %#02x, ",cmd);
+ }
+}
+
+void i2o_debug_state(struct i2o_controller *c)
+{
+ printk(KERN_INFO "%s: State = ", c->name);
+ switch (((i2o_status_block *)c->status_block.virt)->iop_state) {
+ case 0x01:
+ printk("INIT\n");
+ break;
+ case 0x02:
+ printk("RESET\n");
+ break;
+ case 0x04:
+ printk("HOLD\n");
+ break;
+ case 0x05:
+ printk("READY\n");
+ break;
+ case 0x08:
+ printk("OPERATIONAL\n");
+ break;
+ case 0x10:
+ printk("FAILED\n");
+ break;
+ case 0x11:
+ printk("FAULTED\n");
+ break;
+ default:
+ printk("%x (unknown !!)\n", ((i2o_status_block *)c->status_block.virt)->iop_state);
+ }
+};
+
+void i2o_systab_debug(struct i2o_sys_tbl *sys_tbl)
+{
+ u32 *table;
+ int count;
+ u32 size;
+
+ table = (u32*)sys_tbl;
+ size = sizeof(struct i2o_sys_tbl) + sys_tbl->num_entries
+ * sizeof(struct i2o_sys_tbl_entry);
+
+ for(count = 0; count < (size >>2); count++)
+ printk(KERN_INFO "sys_tbl[%d] = %0#10x\n", count, table[count]);
+}
+
+void i2o_dump_hrt(struct i2o_controller *c)
+{
+ u32 *rows=(u32*)c->hrt.virt;
+ u8 *p=(u8 *)c->hrt.virt;
+ u8 *d;
+ int count;
+ int length;
+ int i;
+ int state;
+
+ if(p[3]!=0)
+ {
+ printk(KERN_ERR "%s: HRT table for controller is too new a version.\n",
+ c->name);
+ return;
+ }
+
+ count=p[0]|(p[1]<<8);
+ length = p[2];
+
+ printk(KERN_INFO "%s: HRT has %d entries of %d bytes each.\n",
+ c->name, count, length<<2);
+
+ rows+=2;
+
+ for(i=0;i<count;i++)
+ {
+ printk(KERN_INFO "Adapter %08X: ", rows[0]);
+ p=(u8 *)(rows+1);
+ d=(u8 *)(rows+2);
+ state=p[1]<<8|p[0];
+
+ printk("TID %04X:[", state&0xFFF);
+ state>>=12;
+ if(state&(1<<0))
+ printk("H"); /* Hidden */
+ if(state&(1<<2))
+ {
+ printk("P"); /* Present */
+ if(state&(1<<1))
+ printk("C"); /* Controlled */
+ }
+ if(state>9)
+ printk("*"); /* Hard */
+
+ printk("]:");
+
+ switch(p[3]&0xFFFF)
+ {
+ case 0:
+ /* Adapter private bus - easy */
+ printk("Local bus %d: I/O at 0x%04X Mem 0x%08X",
+ p[2], d[1]<<8|d[0], *(u32 *)(d+4));
+ break;
+ case 1:
+ /* ISA bus */
+ printk("ISA %d: CSN %d I/O at 0x%04X Mem 0x%08X",
+ p[2], d[2], d[1]<<8|d[0], *(u32 *)(d+4));
+ break;
+
+ case 2: /* EISA bus */
+ printk("EISA %d: Slot %d I/O at 0x%04X Mem 0x%08X",
+ p[2], d[3], d[1]<<8|d[0], *(u32 *)(d+4));
+ break;
+
+ case 3: /* MCA bus */
+ printk("MCA %d: Slot %d I/O at 0x%04X Mem 0x%08X",
+ p[2], d[3], d[1]<<8|d[0], *(u32 *)(d+4));
+ break;
+
+ case 4: /* PCI bus */
+ printk("PCI %d: Bus %d Device %d Function %d",
+ p[2], d[2], d[1], d[0]);
+ break;
+
+ case 0x80: /* Other */
+ default:
+ printk("Unsupported bus type.");
+ break;
+ }
+ printk("\n");
+ rows+=length;
+ }
+}
+
+EXPORT_SYMBOL(i2o_dump_status_block);
+EXPORT_SYMBOL(i2o_dump_message);
diff -puN /dev/null drivers/message/i2o/device.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/device.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,700 @@
+/*
+ * Functions to handle I2O devices
+ *
+ * Copyright (C) 2004 Markus Lidel <Markus.Lidel@shadowconnect.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Fixes/additions:
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>
+ * initial version.
+ */
+
+#include <linux/module.h>
+#include <linux/i2o.h>
+
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+
+/* Exec OSM functions */
+extern struct bus_type i2o_bus_type;
+
+/* Module internal used functions */
+int i2o_device_parse_lct(struct i2o_controller *);
+void i2o_device_remove(struct i2o_device *);
+
+/* Internal used functions */
+static inline int i2o_device_issue_claim(struct i2o_device *, u32, u32);
+
+static struct i2o_device *i2o_device_add(struct i2o_controller *,
+ i2o_lct_entry *);
+static void i2o_device_release(struct device *);
+static struct i2o_device *i2o_device_alloc(void);
+
+/* I2O device class functions */
+static int i2o_device_class_add(struct class_device *);
+static void i2o_device_class_release(struct class_device *);
+
+static ssize_t i2o_device_class_show_class_id(struct class_device *, char *);
+static ssize_t i2o_device_class_show_tid(struct class_device *, char *);
+
+int i2o_parm_issue(struct i2o_device *, int, void *, int, void *, int);
+
+
+/* I2O device class */
+static struct class i2o_device_class = {
+ .name = "i2o_device",
+ .release= i2o_device_class_release
+};
+
+/* I2O device class interface */
+static struct class_interface i2o_device_class_interface = {
+ .class = &i2o_device_class,
+ .add = i2o_device_class_add
+};
+
+/* I2O device class attributes */
+static CLASS_DEVICE_ATTR(class_id, S_IRUGO,i2o_device_class_show_class_id,NULL);
+static CLASS_DEVICE_ATTR(tid, S_IRUGO, i2o_device_class_show_tid, NULL);
+
+
+/**
+ * i2o_device_issue_claim - claim or release a device
+ * @dev: I2O device to claim or release
+ * @cmd: claim or release command
+ * @type: type of claim
+ *
+ * Issue I2O UTIL_CLAIM or UTIL_RELEASE messages. The message to be sent
+ * is set by cmd. dev is the I2O device which should be claim or
+ * released and the type is the claim type (see the I2O spec).
+ *
+ * Returs 0 on success or negative error code on failure.
+ */
+static inline int i2o_device_issue_claim(struct i2o_device *dev, u32 cmd,
+ u32 type)
+{
+ struct i2o_message *msg;
+ u32 m;
+
+ m = i2o_msg_get_wait(dev->iop, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FIVE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(cmd<<24|HOST_TID<<12|dev->lct_data.tid, &msg->head[1]);
+ writel(type, &msg->body[0]);
+
+ return i2o_msg_post_wait(dev->iop, m, 60);
+};
+
+/**
+ * i2o_device_claim - claim a device for use by an OSM
+ * @dev: I2O device to claim
+ * @drv: I2O driver which wants to claim the device
+ *
+ * Do the leg work to assign a device to a given OSM. If the claim succeed
+ * the owner of the rimary. If the attempt fails a negative errno code
+ * is returned. On success zero is returned.
+ */
+int i2o_device_claim(struct i2o_device *dev)
+{
+ int rc = 0;
+
+ down(&dev->lock);
+
+ rc = i2o_device_issue_claim(dev, I2O_CMD_UTIL_CLAIM, I2O_CLAIM_PRIMARY);
+ if(!rc)
+ DBG("claim of device %d succeded\n", dev->lct_data.tid);
+ else
+ DBG("claim of device %d failed %d\n", dev->lct_data.tid, rc);
+
+ up(&dev->lock);
+
+ return rc;
+};
+
+/**
+ * i2o_device_claim_release - release a device that the OSM is using
+ * @dev: device to release
+ * @drv: driver which claimed the device
+ *
+ * Drop a claim by an OSM on a given I2O device.
+ *
+ * AC - some devices seem to want to refuse an unclaim until they have
+ * finished internal processing. It makes sense since you don't want a
+ * new device to go reconfiguring the entire system until you are done.
+ * Thus we are prepared to wait briefly.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int i2o_device_claim_release(struct i2o_device *dev)
+{
+ int tries;
+ int rc = 0;
+
+ down(&dev->lock);
+
+ /*
+ * If the controller takes a nonblocking approach to
+ * releases we have to sleep/poll for a few times.
+ */
+ for(tries=0;tries<10;tries++) {
+ rc = i2o_device_issue_claim(dev, I2O_CMD_UTIL_RELEASE,
+ I2O_CLAIM_PRIMARY);
+ if(!rc)
+ break;
+
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(HZ);
+ }
+
+ if(!rc)
+ DBG("claim release of device %d succeded\n", dev->lct_data.tid);
+ else
+ DBG("claim release of device %d failed %d\n", dev->lct_data.tid,
+ rc);
+
+ up(&dev->lock);
+
+ return rc;
+};
+
+/**
+ * i2o_device_alloc - Allocate a I2O device and initialize it
+ *
+ * Allocate the memory for a I2O device and initialize locks and lists
+ *
+ * Returns the allocated I2O device or a negative error code if the device
+ * could not be allocated.
+ */
+static struct i2o_device *i2o_device_alloc(void)
+{
+ struct i2o_device *dev;
+
+ dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+ if(!dev)
+ return ERR_PTR(-ENOMEM);
+
+ memset(dev, 0, sizeof(*dev));
+
+ INIT_LIST_HEAD(&dev->list);
+ init_MUTEX(&dev->lock);
+
+ dev->device.bus = &i2o_bus_type;
+ dev->device.release = &i2o_device_release;
+ dev->classdev.class = &i2o_device_class;
+ dev->classdev.dev = &dev->device;
+
+ return dev;
+};
+
+/**
+ * i2o_device_add - allocate a new I2O device and add it to the IOP
+ * @iop: I2O controller where the device is on
+ * @entry: LCT entry of the I2O device
+ *
+ * Allocate a new I2O device and initialize it with the LCT entry. The
+ * device is appended to the device list of the controller.
+ *
+ * Returns a pointer to the I2O device on success or negative error code
+ * on failure.
+ */
+struct i2o_device *i2o_device_add(struct i2o_controller *c,i2o_lct_entry *entry)
+{
+ struct i2o_device *dev;
+
+ dev = i2o_device_alloc();
+ if(IS_ERR(dev)) {
+ printk(KERN_ERR "i2o: unable to allocate i2o device\n");
+ return dev;
+ }
+
+ dev->lct_data = *entry;
+
+ snprintf(dev->device.bus_id, BUS_ID_SIZE, "%d:%03x", c->unit,
+ dev->lct_data.tid);
+
+ snprintf(dev->classdev.class_id, BUS_ID_SIZE, "%d:%03x", c->unit,
+ dev->lct_data.tid);
+
+ dev->iop=c;
+ dev->device.parent = &c->device;
+
+ device_register(&dev->device);
+
+ list_add_tail(&dev->list, &c->devices);
+
+ class_device_register(&dev->classdev);
+
+ DBG("I2O device %s added\n", dev->device.bus_id);
+
+ return dev;
+};
+
+/**
+ * i2o_device_remove - remove an I2O device from the I2O core
+ * @dev: I2O device which should be released
+ *
+ * Is used on I2O controller removal or LCT modification, when the device
+ * is removed from the system. Note that the device could still hang
+ * around until the refcount reaches 0.
+ */
+void i2o_device_remove(struct i2o_device *i2o_dev)
+{
+ class_device_unregister(&i2o_dev->classdev);
+ list_del(&i2o_dev->list);
+ device_unregister(&i2o_dev->device);
+};
+
+/**
+ * i2o_device_release - release the memory for a I2O device
+ * @dev: I2O device which should be released
+ *
+ * Release the allocated memory. This function is called if refcount of
+ * device reaches 0 automatically.
+ */
+static void i2o_device_release(struct device *dev)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+
+ DBG("Release I2O device %s\n", dev->bus_id);
+
+ kfree(i2o_dev);
+};
+
+/**
+ * i2o_device_parse_lct - Parse a previously fetched LCT and create devices
+ * @c: I2O controller from which the LCT should be parsed.
+ *
+ * The Logical Configuration Table tells us what we can talk to on the
+ * board. For every entry we create an I2O device, which is registered in
+ * the I2O core.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int i2o_device_parse_lct(struct i2o_controller *c)
+{
+ struct i2o_device *dev, *tmp;
+ i2o_lct *lct;
+ int i;
+ int max;
+
+ down(&c->lct_lock);
+
+ if(c->lct)
+ kfree(c->lct);
+
+ lct = c->dlct.virt;
+
+ c->lct = kmalloc(lct->table_size * 4, GFP_KERNEL);
+ if(!c->lct) {
+ up(&c->lct_lock);
+ return -ENOMEM;
+ }
+
+ if(lct->table_size * 4 > c->dlct.len) {
+ memcpy_fromio(c->lct, c->dlct.virt, c->dlct.len);
+ up(&c->lct_lock);
+ return -EAGAIN;
+ }
+
+ memcpy_fromio(c->lct, c->dlct.virt, lct->table_size * 4);
+
+ lct = c->lct;
+
+ max = (lct->table_size - 3) / 9;
+
+ DBG("LCT has %d entries (LCT size: %d)\n", max, lct->table_size);
+
+ /* remove devices, which are not in the LCT anymore */
+ list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ int found = 0;
+
+ for(i = 0; i < max; i ++) {
+ if(lct->lct_entry[i].tid == dev->lct_data.tid) {
+ found = 1;
+ break;
+ }
+ }
+
+ if(!found)
+ i2o_device_remove(dev);
+ }
+
+ /* add new devices, which are new in the LCT */
+ for(i = 0; i < max; i ++) {
+ int found = 0;
+
+ list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ if(lct->lct_entry[i].tid == dev->lct_data.tid) {
+ found = 1;
+ break;
+ }
+ }
+
+ if(!found)
+ i2o_device_add(c, &lct->lct_entry[i]);
+ }
+ up(&c->lct_lock);
+
+ return 0;
+};
+
+/**
+ * i2o_device_class_add - Adds attributes to the I2O device
+ * @cd: I2O class device which is added to the I2O device class
+ *
+ * This function get called when a I2O device is added to the class. It
+ * creates the attributes for each device and creates user/parent symlink
+ * if necessary.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_device_class_add(struct class_device *cd)
+{
+ struct i2o_device *i2o_dev, *tmp;
+ struct i2o_controller *c;
+
+ i2o_dev = to_i2o_device(cd->dev);
+ c = i2o_dev->iop;
+
+ class_device_create_file(cd, &class_device_attr_class_id);
+ class_device_create_file(cd, &class_device_attr_tid);
+
+ /* create user entries for this device */
+ tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
+ if(tmp)
+ sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
+ "user");
+
+ /* create user entries refering to this device */
+ list_for_each_entry(tmp, &c->devices, list)
+ if(tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+ sysfs_create_link(&tmp->device.kobj,
+ &i2o_dev->device.kobj, "user");
+
+ /* create parent entries for this device */
+ tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
+ if(tmp)
+ sysfs_create_link(&i2o_dev->device.kobj, &tmp->device.kobj,
+ "parent");
+
+ /* create parent entries refering to this device */
+ list_for_each_entry(tmp, &c->devices, list)
+ if(tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
+ sysfs_create_link(&tmp->device.kobj,
+ &i2o_dev->device.kobj, "parent");
+
+ return 0;
+};
+
+/**
+ * i2o_device_class_release - Remove I2O device attributes
+ * @cd: I2O class device which is added to the I2O device class
+ *
+ * Removes attributes from the I2O device again. Also search each device
+ * on the controller for I2O devices which refert to this device as parent
+ * or user and remove this links also.
+ */
+static void i2o_device_class_release(struct class_device *cd)
+{
+ struct i2o_device *i2o_dev, *tmp;
+ struct i2o_controller *c;
+
+ i2o_dev = to_i2o_device(cd->dev);
+ c = i2o_dev->iop;
+
+ sysfs_remove_link(&i2o_dev->device.kobj, "parent");
+ sysfs_remove_link(&i2o_dev->device.kobj, "user");
+
+ list_for_each_entry(tmp, &c->devices, list) {
+ if(tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
+ sysfs_remove_link(&tmp->device.kobj, "parent");
+ if(tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+ sysfs_remove_link(&tmp->device.kobj, "user");
+ }
+};
+
+/**
+ * i2o_device_class_show_class_id - Displays class id of I2O device
+ * @cd: class device of which the class id should be displayed
+ * @buf: buffer into which the class id should be printed
+ *
+ * Returns the number of bytes which are printed into the buffer.
+ */
+static ssize_t i2o_device_class_show_class_id(struct class_device *cd,char *buf)
+{
+ struct i2o_device *dev = to_i2o_device(cd->dev);
+
+ sprintf(buf, "%03x\n", dev->lct_data.class_id);
+ return strlen(buf) + 1;
+};
+
+/**
+ * i2o_device_class_show_tid - Displays TID of I2O device
+ * @cd: class device of which the TID should be displayed
+ * @buf: buffer into which the class id should be printed
+ *
+ * Returns the number of bytes which are printed into the buffer.
+ */
+static ssize_t i2o_device_class_show_tid(struct class_device *cd, char*buf)
+{
+ struct i2o_device *dev = to_i2o_device(cd->dev);
+
+ sprintf(buf, "%03x\n", dev->lct_data.tid);
+ return strlen(buf) + 1;
+};
+
+/*
+ * Run time support routines
+ */
+
+/* Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET
+ *
+ * This function can be used for all UtilParamsGet/Set operations.
+ * The OperationList is given in oplist-buffer,
+ * and results are returned in reslist-buffer.
+ * Note that the minimum sized reslist is 8 bytes and contains
+ * ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
+ */
+
+int i2o_parm_issue(struct i2o_device *i2o_dev, int cmd, void *oplist,
+ int oplen, void *reslist, int reslen)
+{
+ struct i2o_message *msg;
+ u32 m;
+ u32 *res32 = (u32*)reslist;
+ u32 *restmp = (u32*)reslist;
+ int len = 0;
+ int i = 0;
+ int rc;
+ struct i2o_dma res;
+ struct i2o_controller *c = i2o_dev->iop;
+ struct device *dev = &c->pdev->dev;
+
+ res.virt = NULL;
+
+ if(i2o_dma_alloc(dev, &res, reslen, GFP_KERNEL))
+ return -ENOMEM;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY) {
+ i2o_dma_free(dev, &res);
+ return -ETIMEDOUT;
+ }
+
+ i = 0;
+ writel(cmd<<24 | HOST_TID<<12 | i2o_dev->lct_data.tid, &msg->head[1]);
+ writel(0, &msg->body[i ++]);
+ writel(0x4C000000 | oplen, &msg->body[i ++]); /* OperationList */
+ memcpy_toio(&msg->body[i], oplist, oplen);
+ i += (oplen/4+(oplen%4?1:0));
+ writel(0xD0000000 | res.len, &msg->body[i ++]); /* ResultList */
+ writel(res.phys, &msg->body[i ++]);
+
+ writel(I2O_MESSAGE_SIZE(i+sizeof(struct i2o_message)/4)| SGL_OFFSET_5,
+ &msg->head[0]);
+
+ rc = i2o_msg_post_wait_mem(c, m, 10, &res);
+
+ /* This only looks like a memory leak - don't "fix" it. */
+ if(rc == -ETIMEDOUT)
+ return rc;
+
+ memcpy_fromio(reslist, res.virt, res.len);
+ i2o_dma_free(dev, &res);
+
+ /* Query failed */
+ if(rc)
+ return rc;
+ /*
+ * Calculate number of bytes of Result LIST
+ * We need to loop through each Result BLOCK and grab the length
+ */
+ restmp = res32 + 1;
+ len = 1;
+ for(i = 0; i < (res32[0]&0X0000FFFF); i++)
+ {
+ if(restmp[0]&0x00FF0000) /* BlockStatus != SUCCESS */
+ {
+ printk(KERN_WARNING "%s - Error:\n ErrorInfoSize = 0x%02x, "
+ "BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
+ (cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET"
+ : "PARAMS_GET",
+ res32[1]>>24, (res32[1]>>16)&0xFF, res32[1]&0xFFFF);
+
+ /*
+ * If this is the only request,than we return an error
+ */
+ if((res32[0]&0x0000FFFF) == 1)
+ {
+ return -((res32[1] >> 16) & 0xFF); /* -BlockStatus */
+ }
+ }
+ len += restmp[0] & 0x0000FFFF; /* Length of res BLOCK */
+ restmp += restmp[0] & 0x0000FFFF; /* Skip to next BLOCK */
+ }
+ return (len << 2); /* bytes used by result list */
+}
+
+/*
+ * Query one field group value or a whole scalar group.
+ */
+int i2o_parm_field_get(struct i2o_device *i2o_dev, int group, int field,
+ void *buf, int buflen)
+{
+ u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
+ u8 resblk[8+buflen]; /* 8 bytes for header */
+ int size;
+
+ if (field == -1) /* whole group */
+ opblk[4] = -1;
+
+ size = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
+ sizeof(opblk), resblk, sizeof(resblk));
+
+ memcpy(buf, resblk+8, buflen); /* cut off header */
+
+ if(size>buflen)
+ return buflen;
+
+ return size;
+}
+
+/*
+ * Set a scalar group value or a whole group.
+ */
+int i2o_parm_field_set(struct i2o_device *i2o_dev, int group, int field,
+ void *buf, int buflen)
+{
+ u16 *opblk;
+ u8 resblk[8+buflen]; /* 8 bytes for header */
+ int size;
+
+ opblk = kmalloc(buflen+64, GFP_KERNEL);
+ if (opblk == NULL)
+ {
+ printk(KERN_ERR "i2o: no memory for operation buffer.\n");
+ return -ENOMEM;
+ }
+
+ opblk[0] = 1; /* operation count */
+ opblk[1] = 0; /* pad */
+ opblk[2] = I2O_PARAMS_FIELD_SET;
+ opblk[3] = group;
+
+ if(field == -1) { /* whole group */
+ opblk[4] = -1;
+ memcpy(opblk+5, buf, buflen);
+ }
+ else /* single field */
+ {
+ opblk[4] = 1;
+ opblk[5] = field;
+ memcpy(opblk+6, buf, buflen);
+ }
+
+ size = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_SET, opblk,
+ 12+buflen, resblk, sizeof(resblk));
+
+ kfree(opblk);
+ if(size>buflen)
+ return buflen;
+
+ return size;
+}
+
+/*
+ * if oper == I2O_PARAMS_TABLE_GET, get from all rows
+ * if fieldcount == -1 return all fields
+ * ibuf and ibuflen are unused (use NULL, 0)
+ * else return specific fields
+ * ibuf contains fieldindexes
+ *
+ * if oper == I2O_PARAMS_LIST_GET, get from specific rows
+ * if fieldcount == -1 return all fields
+ * ibuf contains rowcount, keyvalues
+ * else return specific fields
+ * fieldcount is # of fieldindexes
+ * ibuf contains fieldindexes, rowcount, keyvalues
+ *
+ * You could also use directly function i2o_issue_params().
+ */
+int i2o_parm_table_get(struct i2o_device *dev, int oper, int group,
+ int fieldcount, void *ibuf, int ibuflen, void *resblk, int reslen)
+{
+ u16 *opblk;
+ int size;
+
+ size = 10 + ibuflen;
+ if(size % 4)
+ size += 4 - size % 4;
+
+ opblk = kmalloc(size, GFP_KERNEL);
+ if (opblk == NULL) {
+ printk(KERN_ERR "i2o: no memory for query buffer.\n");
+ return -ENOMEM;
+ }
+
+ opblk[0] = 1; /* operation count */
+ opblk[1] = 0; /* pad */
+ opblk[2] = oper;
+ opblk[3] = group;
+ opblk[4] = fieldcount;
+ memcpy(opblk+5, ibuf, ibuflen); /* other params */
+
+ size = i2o_parm_issue(dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
+ size, resblk, reslen);
+
+ kfree(opblk);
+ if(size>reslen)
+ return reslen;
+
+ return size;
+}
+
+/**
+ * i2o_device_init - Initialize I2O devices
+ *
+ * Registers the I2O device class.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int i2o_device_init(void)
+{
+ int rc;
+
+ rc = class_register(&i2o_device_class);
+ if(rc)
+ return rc;
+
+ return class_interface_register(&i2o_device_class_interface);
+};
+
+/**
+ * i2o_device_exit - I2O devices exit function
+ *
+ * Unregisters the I2O device class.
+ */
+void i2o_device_exit(void)
+{
+ class_interface_register(&i2o_device_class_interface);
+ class_unregister(&i2o_device_class);
+};
+
+EXPORT_SYMBOL(i2o_device_claim);
+EXPORT_SYMBOL(i2o_device_claim_release);
+EXPORT_SYMBOL(i2o_parm_field_get);
+EXPORT_SYMBOL(i2o_parm_field_set);
+EXPORT_SYMBOL(i2o_parm_table_get);
+EXPORT_SYMBOL(i2o_parm_issue);
diff -puN /dev/null drivers/message/i2o/driver.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/driver.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,290 @@
+/*
+ * Functions to handle I2O drivers (OSMs) and I2O bus type for sysfs
+ *
+ * Copyright (C) 2004 Markus Lidel <Markus.Lidel@shadowconnect.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * Fixes/additions:
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>
+ * initial version.
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/rwsem.h>
+#include <linux/i2o.h>
+
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+
+/* Module internal used functions */
+int i2o_driver_dispatch(struct i2o_controller *, u32, struct i2o_message *);
+
+/* I2O bus functions */
+static int i2o_bus_match(struct device *dev, struct device_driver *drv);
+
+/* Init / exit functions */
+int __init i2o_driver_init(void);
+void __exit i2o_driver_exit(void);
+
+
+/* max_drivers - Maximum I2O drivers (OSMs) which could be registered */
+unsigned int i2o_max_drivers = I2O_MAX_DRIVERS;
+module_param_named(max_drivers, i2o_max_drivers, uint, 0);
+MODULE_PARM_DESC(max_drivers, "maximum number of OSM's to support");
+
+
+/* I2O bus type */
+struct bus_type i2o_bus_type = {
+ .name = "i2o",
+ .match = i2o_bus_match,
+};
+
+/* I2O drivers lock and array */
+static spinlock_t i2o_drivers_lock = SPIN_LOCK_UNLOCKED;
+static struct i2o_driver **i2o_drivers;
+
+
+/**
+ * i2o_bus_match - Tell if a I2O device class id match the class ids of
+ * the I2O driver (OSM)
+ *
+ * @dev: device which should be verified
+ * @drv: the driver to match against
+ *
+ * Used by the bus to check if the driver wants to handle the device.
+ *
+ * Returns 1 if the class ids of the driver match the class id of the
+ * device, otherwise 0.
+ */
+static int i2o_bus_match(struct device *dev, struct device_driver *drv)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+ struct i2o_driver *i2o_drv = to_i2o_driver(drv);
+ struct i2o_class_id *ids = i2o_drv->classes;
+
+ if(ids)
+ while(ids->class_id != I2O_CLASS_END)
+ {
+ if(ids->class_id == i2o_dev->lct_data.class_id)
+ return 1;
+ ids ++;
+ }
+ return 0;
+};
+
+/**
+ * i2o_driver_register - Register a I2O driver (OSM) in the I2O core
+ * @drv: I2O driver which should be registered
+ *
+ * Registers the OSM drv in the I2O core and creates an event queues if
+ * necessary.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int i2o_driver_register(struct i2o_driver *drv)
+{
+ int i;
+ int rc = 0;
+ unsigned long flags;
+
+ DBG("Register driver %s\n", drv->name);
+
+ if(drv->event) {
+ drv->event_queue = create_workqueue(drv->name);
+ if(!drv->event_queue)
+ {
+ printk(KERN_ERR "i2o: Could not initialize event queue "
+ "for driver %s\n", drv->name);
+ return -EFAULT;
+ }
+ DBG("Event queue initialized for driver %s\n", drv->name);
+ }
+ else
+ drv->event_queue = NULL;
+
+ drv->driver.name = drv->name;
+ drv->driver.bus = &i2o_bus_type;
+
+ spin_lock_irqsave(&i2o_drivers_lock, flags);
+
+ for(i=0;i2o_drivers[i];i++)
+ if(i>=i2o_max_drivers) {
+ printk(KERN_ERR "i2o: too many drivers registered, "
+ "increase max_drivers\n");
+ spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+ return -EFAULT;
+ }
+
+ drv->context = i;
+ i2o_drivers[i]=drv;
+
+ spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+
+ DBG("driver %s gets context id %d\n", drv->name, drv->context);
+
+ rc = driver_register(&drv->driver);
+ if(rc)
+ destroy_workqueue(drv->event_queue);
+
+ return rc;
+};
+
+/**
+ * i2o_driver_unregister - Unregister a I2O driver (OSM) from the I2O core
+ * @drv: I2O driver which should be unregistered
+ *
+ * Unregisters the OSM drv from the I2O core and cleanup event queues if
+ * necessary.
+ */
+void i2o_driver_unregister(struct i2o_driver *drv)
+{
+ unsigned long flags;
+
+ DBG("unregister driver %s\n", drv->name);
+
+ driver_unregister(&drv->driver);
+
+ spin_lock_irqsave(&i2o_drivers_lock, flags);
+ i2o_drivers[drv->context]=NULL;
+ spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+
+ if(drv->event_queue) {
+ destroy_workqueue(drv->event_queue);
+ drv->event_queue = NULL;
+ DBG("event queue removed for %s\n", drv->name);
+ }
+};
+
+/**
+ * i2o_driver_dispatch - dispatch an I2O reply message
+ * @c: I2O controller of the message
+ * @m: I2O message number
+ * @msg: I2O message to be delivered
+ *
+ * The reply is delivered to the driver from which the original message
+ * was. This function is only called from interrupt context.
+ *
+ * Returns 0 on success and the message should not be flushed. Returns > 0
+ * on success and if the message should be flushed afterwords. Returns
+ * negative error code on failure (the message will be flushed too).
+ */
+int i2o_driver_dispatch(struct i2o_controller *c, u32 m,struct i2o_message *msg)
+{
+ struct i2o_driver *drv;
+ u32 context = readl(&msg->icntxt);
+
+ if(likely(context < i2o_max_drivers)) {
+ spin_lock(&i2o_drivers_lock);
+ drv = i2o_drivers[context];
+ spin_unlock(&i2o_drivers_lock);
+
+ if(unlikely(!drv)) {
+ printk(KERN_WARNING "i2o: Spurious reply to unknown "
+ "driver %d\n", context);
+ return -EIO;
+ }
+
+ if((readl(&msg->head[1])>>24) == I2O_CMD_UTIL_EVT_REGISTER) {
+ struct i2o_device *dev, *tmp;
+ struct i2o_event *evt;
+ u16 size;
+ u16 tid;
+
+ tid = readl(&msg->head[1])&0x1fff;
+
+ DBG("%s: event received from device %d\n", c->name,tid);
+
+ /* cut of header from message size (in 32-bit words) */
+ size = (readl(&msg->head[0])>>16)-5;
+
+ evt = kmalloc(size*4 + sizeof(*evt), GFP_ATOMIC);
+ if(!evt)
+ return -ENOMEM;
+ memset(evt, 0, size*4 + sizeof(*evt));
+
+ evt->size = size;
+ memcpy_fromio(&evt->tcntxt, &msg->tcntxt, (size+2)*4);
+
+
+ list_for_each_entry_safe(dev, tmp, &c->devices, list)
+ if(dev->lct_data.tid == tid) {
+ evt->i2o_dev = dev;
+ break;
+ }
+
+ INIT_WORK(&evt->work, (void (*)(void*))drv->event, evt);
+ queue_work(drv->event_queue, &evt->work);
+ return 1;
+ }
+
+ if(likely(drv->reply))
+ return drv->reply(c, m, msg);
+ else
+ DBG("%s: Reply to driver %s, but no reply function "
+ "defined!\n", c->name, drv->name);
+ return -EIO;
+ } else
+ printk(KERN_WARNING "i2o: Spurious reply to unknown driver "
+ "%d\n", readl(&msg->icntxt));
+ return -EIO;
+}
+
+/**
+ * i2o_driver_init - initialize I2O drivers (OSMs)
+ *
+ * Registers the I2O bus and allocate memory for the array of OSMs.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int __init i2o_driver_init(void)
+{
+ int rc = 0;
+
+ if((i2o_max_drivers < 2) || (i2o_max_drivers > 64) ||
+ ((i2o_max_drivers^(i2o_max_drivers-1)) != (2*i2o_max_drivers-1)))
+ {
+ printk(KERN_WARNING "i2o: max_drivers set to %d, but must be "
+ ">=2 and <= 64 and a power of 2\n", i2o_max_drivers);
+ i2o_max_drivers = I2O_MAX_DRIVERS;
+ }
+ printk(KERN_INFO "i2o: max_drivers=%d\n", i2o_max_drivers);
+
+ i2o_drivers = kmalloc(i2o_max_drivers*sizeof(*i2o_drivers), GFP_KERNEL);
+ if(!i2o_drivers)
+ return -ENOMEM;
+
+ memset(i2o_drivers, 0, i2o_max_drivers*sizeof(*i2o_drivers));
+
+ rc = bus_register(&i2o_bus_type);
+
+ if(rc<0)
+ kfree(i2o_drivers);
+
+ return rc;
+};
+
+/**
+ * i2o_driver_exit - clean up I2O drivers (OSMs)
+ *
+ * Unregisters the I2O bus and free driver array.
+ */
+void __exit i2o_driver_exit(void)
+{
+ bus_unregister(&i2o_bus_type);
+ kfree(i2o_drivers);
+};
+
+EXPORT_SYMBOL(i2o_driver_register);
+EXPORT_SYMBOL(i2o_driver_unregister);
diff -puN /dev/null drivers/message/i2o/exec-osm.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/exec-osm.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,532 @@
+/*
+ * Executive OSM
+ *
+ * Copyright (C) 1999-2002 Red Hat Software
+ *
+ * Written by Alan Cox, Building Number Three Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * A lot of the I2O message side code from this is taken from the Red
+ * Creek RCPCI45 adapter driver by Red Creek Communications
+ *
+ * Fixes/additions:
+ * Philipp Rumpf
+ * Juha Siev�nen <Juha.Sievanen@cs.Helsinki.FI>
+ * Auvo H�kkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ * Deepak Saxena <deepak@plexity.net>
+ * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ * Alan Cox <alan@redhat.com>:
+ * Ported to Linux 2.5.
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Minor fixes for 2.6.
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Support for sysfs included.
+ */
+
+#include <linux/module.h>
+#include <linux/i2o.h>
+
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+
+/* Module internal functions from other sources */
+extern int i2o_device_parse_lct(struct i2o_controller *);
+
+/* Internal used functions */
+static int i2o_msg_post_wait_complete(struct i2o_controller *, u32,
+ struct i2o_message *);
+
+static int i2o_exec_probe(struct device *);
+static int i2o_exec_remove(struct device *);
+
+static struct i2o_exec_wait *i2o_exec_wait_alloc(void);
+static void i2o_exec_wait_free(struct i2o_exec_wait *);
+
+static int i2o_exec_reply(struct i2o_controller *, u32, struct i2o_message *);
+static void i2o_exec_event(struct i2o_event *);
+
+static void i2o_exec_lct_modified(struct i2o_controller *);
+
+/* Module init and exit functions */
+int __init i2o_exec_init(void);
+void __exit i2o_exec_exit(void);
+
+
+/* global wait list for POST WAIT */
+static LIST_HEAD(i2o_exec_wait_list);
+
+/* Wait struct needed for POST WAIT */
+struct i2o_exec_wait {
+ wait_queue_head_t *wq; /* Pointer to Wait queue */
+ struct i2o_dma dma; /* DMA buffers to free on failure */
+ u32 tcntxt; /* transaction context from reply */
+ int complete; /* 1 if reply received otherwise 0 */
+ u32 m; /* message id */
+ struct i2o_message *msg; /* pointer to the reply message */
+ struct list_head list; /* node in global wait list */
+};
+
+/* Exec OSM class handling definition */
+static struct i2o_class_id i2o_exec_class_id[] = {
+ { I2O_CLASS_EXECUTIVE },
+ { I2O_CLASS_END }
+};
+
+/* Exec OSM driver struct */
+struct i2o_driver i2o_exec_driver = {
+ .name = "exec-osm",
+ .reply = i2o_exec_reply,
+ .event = i2o_exec_event,
+ .classes = i2o_exec_class_id,
+ .driver.probe = i2o_exec_probe,
+ .driver.remove = i2o_exec_remove
+};
+
+
+/**
+ * i2o_msg_post_wait_mem - Post and wait a message with DMA buffers
+ * @c: controller
+ * @m: message to post
+ * @timeout: time in seconds to wait
+ * @dma: i2o_dma struct of the DMA buffer to free on failure
+ *
+ * This API allows an OSM to post a message and then be told whether or
+ * not the system received a successful reply. If the message times out
+ * then the value '-ETIMEDOUT' is returned. This is a special case. In
+ * this situation the message may (should) complete at an indefinite time
+ * in the future. When it completes it will use the memory buffer
+ * attached to the request. If -ETIMEDOUT is returned then the memory
+ * buffer must not be freed. Instead the event completion will free them
+ * for you. In all other cases the buffer are your problem.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int i2o_msg_post_wait_mem(struct i2o_controller *c, u32 m, unsigned long
+ timeout, struct i2o_dma *dma)
+{
+ DECLARE_WAIT_QUEUE_HEAD(wq);
+ DEFINE_WAIT(wait);
+ struct i2o_exec_wait *iwait;
+ static u32 tcntxt = 0x80000000;
+ struct i2o_message *msg = c->in_queue.virt + m;
+ int rc = 0;
+
+ iwait = i2o_exec_wait_alloc();
+ if(!iwait)
+ return -ENOMEM;
+
+ if(tcntxt == 0xffffffff)
+ tcntxt = 0x80000000;
+
+
+ if(dma)
+ iwait->dma = *dma;
+
+ /*
+ * Fill in the message initiator context and transaction context.
+ * We will only use transaction contexts >= 0x80000000 for POST WAIT,
+ * so we could find a POST WAIT reply easier in the reply handler.
+ */
+ writel(i2o_exec_driver.context, &msg->icntxt);
+ iwait->tcntxt = tcntxt ++;
+ writel(iwait->tcntxt, &msg->tcntxt);
+
+ /*
+ * Post the message to the controller. At some point later it will
+ * return. If we time out before it returns then complete will be zero.
+ */
+ i2o_msg_post(c,m);
+
+ if(!iwait->complete) {
+ iwait->wq = &wq;
+ /*
+ * we add elements add the head, because if a entry in the list
+ * will never be removed, we have to iterate over it every time
+ */
+ list_add(&iwait->list, &i2o_exec_wait_list);
+
+ prepare_to_wait(&wq, &wait, TASK_INTERRUPTIBLE);
+
+ if(!iwait->complete)
+ schedule_timeout(timeout * HZ);
+
+ finish_wait(&wq, &wait);
+
+ iwait->wq = NULL;
+ }
+
+ barrier();
+
+ if(iwait->complete) {
+ if(readl(&iwait->msg->body[0]) >> 24)
+ rc = readl(&iwait->msg->body[0]) & 0xff;
+ i2o_flush_reply(c, iwait->m);
+ i2o_exec_wait_free(iwait);
+ } else {
+ /*
+ * We cannot remove it now. This is important. When it does
+ * terminate (which it must do if the controller has not
+ * died...) then it will otherwise scribble on stuff.
+ *
+ * FIXME: try abort message
+ */
+ if(dma)
+ dma->virt = NULL;
+
+ rc = -ETIMEDOUT;
+ }
+
+ return rc;
+};
+
+/**
+ * i2o_msg_post_wait_complete - Reply to a i2o_msg_post request from IOP
+ * @c: I2O controller which answers
+ * @m: message id
+ * @msg: pointer to the I2O reply message
+ *
+ * This function is called in interrupt context only. If the reply reached
+ * before the timeout, the i2o_exec_wait struct is filled with the message
+ * and the task will be waked up. The task is now responsible for returning
+ * the message m back to the controller! If the message reaches us after
+ * the timeout clean up the i2o_exec_wait struct (including allocated
+ * DMA buffer).
+ *
+ * Return 0 on success and if the message m should not be given back to the
+ * I2O controller, or >0 on success and if the message should be given back
+ * afterwords. Returns negative error code on failure. In this case the
+ * message must also be given back to the controller.
+ */
+static int i2o_msg_post_wait_complete(struct i2o_controller *c, u32 m,
+ struct i2o_message *msg)
+{
+ struct i2o_exec_wait *wait, *tmp;
+ static spinlock_t lock = SPIN_LOCK_UNLOCKED;
+ int rc = 1;
+ u32 context;
+
+ context = readl(&msg->tcntxt);
+
+ /*
+ * We need to search through the i2o_exec_wait_list to see if the given
+ * message is still outstanding. If not, it means that the IOP took
+ * longer to respond to the message than we had allowed and timer has
+ * already expired. Not much we can do about that except log it for
+ * debug purposes, increase timeout, and recompile.
+ */
+ spin_lock(&lock);
+ list_for_each_entry_safe(wait, tmp, &i2o_exec_wait_list, list) {
+ if(wait->tcntxt == context) {
+ list_del(&wait->list);
+
+ wait->m = m;
+ wait->msg = msg;
+ wait->complete = 1;
+
+ barrier();
+
+ if(wait->wq) {
+ wake_up_interruptible(wait->wq);
+ rc = 0;
+ } else {
+ struct device *dev;
+
+ dev = &c->pdev->dev;
+
+ DBG("timedout reply received!\n");
+ i2o_dma_free(dev, &wait->dma);
+ i2o_exec_wait_free(wait);
+ rc = -1;
+ }
+
+ spin_unlock(&lock);
+
+ return rc;
+ }
+ }
+
+ spin_unlock(&lock);
+
+ DBG("i2o: Bogus reply in POST WAIT (tr-context: %08x)!\n", context);
+
+ return -1;
+};
+
+/**
+ * i2o_exec_probe - Called if a new I2O device (executive class) appears
+ * @dev: I2O device which should be probed
+ *
+ * Registers event notification for every event from Executive device. The
+ * return is always 0, because we want all devices of class Executive.
+ *
+ * Returns 0 on success.
+ */
+static int i2o_exec_probe(struct device *dev)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+
+ i2o_event_register(i2o_dev, &i2o_exec_driver, 0, 0xffffffff);
+
+ i2o_dev->iop->exec = i2o_dev;
+
+ return 0;
+};
+
+/**
+ * i2o_exec_remove - Called on I2O device removal
+ * @dev: I2O device which was removed
+ *
+ * Unregisters event notification from Executive I2O device.
+ *
+ * Returns 0 on success.
+ */
+static int i2o_exec_remove(struct device *dev)
+{
+ i2o_event_register(to_i2o_device(dev), &i2o_exec_driver, 0, 0);
+
+ return 0;
+};
+
+/**
+ * i2o_exec_wait_alloc - Allocate a i2o_exec_wait struct an initialize it
+ *
+ * Allocate the i2o_exec_wait struct and initialize the wait.
+ *
+ * Returns i2o_exec_wait pointer on success or negative error code on
+ * failure.
+ */
+static struct i2o_exec_wait *i2o_exec_wait_alloc(void)
+{
+ struct i2o_exec_wait *wait;
+
+ wait = kmalloc(sizeof(*wait), GFP_KERNEL);
+ if(!wait)
+ return ERR_PTR(-ENOMEM);
+
+ memset(wait, 0, sizeof(*wait));
+
+ INIT_LIST_HEAD(&wait->list);
+
+ return wait;
+};
+
+/**
+ * i2o_exec_wait_free - Free a i2o_exec_wait struct
+ * @i2o_exec_wait: I2O wait data which should be cleaned up
+ */
+static void i2o_exec_wait_free(struct i2o_exec_wait *wait)
+{
+ kfree(wait);
+};
+
+/**
+ * i2o_exec_reply - I2O Executive reply handler
+ * @c: I2O controller from which the reply comes
+ * @m: message id
+ * @msg: pointer to the I2O reply message
+ *
+ * This function is always called from interrupt context. If a POST WAIT
+ * reply was received, pass it to the complete function. If a LCT NOTIFY
+ * reply was received, a new event is created to handle the update.
+ *
+ * Returns 0 on success and if the reply should not be flushed or > 0
+ * on success and if the reply should be flushed. Returns negative error
+ * code on failure and if the reply should be flushed.
+ */
+static int i2o_exec_reply(struct i2o_controller *c, u32 m,
+ struct i2o_message *msg)
+{
+ if (readl(&msg->head[0]) & MSG_FAIL) { // Fail bit is set
+ struct i2o_message *pmsg; /* preserved message */
+ u32 pm;
+
+ pm = readl(&msg->body[3]);
+
+ pmsg = c->in_queue.virt + pm;
+
+ i2o_report_status(KERN_INFO, "i2o_core", msg);
+
+ /* Release the preserved msg by resubmitting it as a NOP */
+ i2o_msg_nop(c, pm);
+
+ /* If reply to i2o_post_wait failed, return causes a timeout */
+ return -1;
+ }
+
+ if(readl(&msg->tcntxt) & 0x80000000)
+ return i2o_msg_post_wait_complete(c, m, msg);
+
+ if((readl(&msg->head[1])>>24) == I2O_CMD_LCT_NOTIFY) {
+ struct work_struct *work;
+
+ DBG("%s: LCT notify received\n", c->name);
+
+ work = kmalloc(sizeof(*work), GFP_ATOMIC);
+ if(!work)
+ return -ENOMEM;
+
+ INIT_WORK(work, (void (*)(void *))i2o_exec_lct_modified, c);
+ queue_work(i2o_exec_driver.event_queue, work);
+ return 1;
+ }
+
+ /*
+ * If this happens, we want to dump the message to the syslog so
+ * it can be sent back to the card manufacturer by the end user
+ * to aid in debugging.
+ *
+ */
+ printk(KERN_WARNING "%s: Unsolicited message reply sent to core!"
+ "Message dumped to syslog\n", c->name);
+ i2o_dump_message(msg);
+
+ return -EFAULT;
+}
+
+/**
+ * i2o_exec_event - Event handling function
+ * @evt: Event which occurs
+ *
+ * Handles events send by the Executive device. At the moment does not do
+ * anything useful.
+ */
+static void i2o_exec_event(struct i2o_event *evt)
+{
+ printk(KERN_INFO "Event received from device: %d\n",
+ evt->i2o_dev->lct_data.tid);
+ kfree(evt);
+};
+
+/**
+ * i2o_exec_lct_get - Get the IOP's Logical Configuration Table
+ * @c: I2O controller from which the LCT should be fetched
+ *
+ * Send a LCT NOTIFY request to the controller, and wait
+ * I2O_TIMEOUT_LCT_GET seconds until arrival of response. If the LCT is
+ * to large, retry it.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int i2o_exec_lct_get(struct i2o_controller *c)
+{
+ struct i2o_message *msg;
+ u32 m;
+ int i = 0;
+ int rc = -EAGAIN;
+
+ for(i = 1; i <= I2O_LCT_GET_TRIES; i ++) {
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6, &msg->head[0]);
+ writel(I2O_CMD_LCT_NOTIFY<<24|HOST_TID<<12|ADAPTER_TID,
+ &msg->head[1]);
+ writel(0xffffffff, &msg->body[0]);
+ writel(0x00000000, &msg->body[1]);
+ writel(0xd0000000|c->dlct.len, &msg->body[2]);
+ writel(c->dlct.phys, &msg->body[3]);
+
+ rc=i2o_msg_post_wait(c, m, I2O_TIMEOUT_LCT_GET);
+ if(rc<0)
+ break;
+
+ rc = i2o_device_parse_lct(c);
+ if(rc != -EAGAIN)
+ break;
+ }
+
+ return rc;
+}
+
+/**
+ * i2o_exec_lct_notify - Send a asynchronus LCT NOTIFY request
+ * @c: I2O controller to which the request should be send
+ * @change_ind: change indicator
+ *
+ * This function sends a LCT NOTIFY request to the I2O controller with
+ * the change indicator change_ind. If the change_ind == 0 the controller
+ * replies immediately after the request. If change_ind > 0 the reply is
+ * send after change indicator of the LCT is > change_ind.
+ */
+int i2o_exec_lct_notify(struct i2o_controller *c, u32 change_ind)
+{
+ i2o_status_block *sb = c->status_block.virt;
+ struct device *dev;
+ struct i2o_message *msg;
+ u32 m;
+
+ dev = &c->pdev->dev;
+
+ if(i2o_dma_realloc(dev, &c->dlct, sb->expected_lct_size, GFP_KERNEL))
+ return -ENOMEM;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6, &msg->head[0]);
+ writel(I2O_CMD_LCT_NOTIFY<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+ writel(i2o_exec_driver.context, &msg->icntxt);
+ writel(0, &msg->tcntxt); /* FIXME */
+ writel(0xffffffff, &msg->body[0]);
+ writel(change_ind, &msg->body[1]);
+ writel(0xd0000000|c->dlct.len, &msg->body[2]);
+ writel(c->dlct.phys, &msg->body[3]);
+
+ i2o_msg_post(c, m);
+
+ return 0;
+};
+
+/**
+ * i2o_exec_lct_modified - Called on LCT NOTIFY reply
+ * @c: I2O controller on which the LCT has modified
+ *
+ * This function handles asynchronus LCT NOTIFY replies. It parses the
+ * new LCT and if the buffer for the LCT was to small sends a LCT NOTIFY
+ * again.
+ */
+static void i2o_exec_lct_modified(struct i2o_controller *c)
+{
+ if(i2o_device_parse_lct(c) == -EAGAIN)
+ i2o_exec_lct_notify(c, 0);
+};
+
+/**
+ * i2o_exec_init - Registers the Exec OSM
+ *
+ * Registers the Exec OSM in the I2O core.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int __init i2o_exec_init(void)
+{
+ return i2o_driver_register(&i2o_exec_driver);
+};
+
+/**
+ * i2o_exec_exit - Removes the Exec OSM
+ *
+ * Unregisters the Exec OSM from the I2O core.
+ */
+void __exit i2o_exec_exit(void)
+{
+ i2o_driver_unregister(&i2o_exec_driver);
+};
+
+
+EXPORT_SYMBOL(i2o_msg_post_wait_mem);
+EXPORT_SYMBOL(i2o_exec_lct_get);
+EXPORT_SYMBOL(i2o_exec_lct_notify);
diff -L drivers/message/i2o/i2o_block.c -puN drivers/message/i2o/i2o_block.c~i2o-build_99 /dev/null
--- 25/drivers/message/i2o/i2o_block.c
+++ /dev/null Thu Apr 11 07:25:15 2002
@@ -1,1693 +0,0 @@
-/*
- * I2O Random Block Storage Class OSM
- *
- * (C) Copyright 1999-2002 Red Hat
- *
- * Written by Alan Cox, Building Number Three Ltd
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * For the purpose of avoiding doubt the preferred form of the work
- * for making modifications shall be a standards compliant form such
- * gzipped tar and not one requiring a proprietary or patent encumbered
- * tool to unpack.
- *
- * This is a beta test release. Most of the good code was taken
- * from the nbd driver by Pavel Machek, who in turn took some of it
- * from loop.c. Isn't free software great for reusability 8)
- *
- * Fixes/additions:
- * Steve Ralston:
- * Multiple device handling error fixes,
- * Added a queue depth.
- * Alan Cox:
- * FC920 has an rmw bug. Dont or in the end marker.
- * Removed queue walk, fixed for 64bitness.
- * Rewrote much of the code over time
- * Added indirect block lists
- * Handle 64K limits on many controllers
- * Don't use indirects on the Promise (breaks)
- * Heavily chop down the queue depths
- * Deepak Saxena:
- * Independent queues per IOP
- * Support for dynamic device creation/deletion
- * Code cleanup
- * Support for larger I/Os through merge* functions
- * (taken from DAC960 driver)
- * Boji T Kannanthanam:
- * Set the I2O Block devices to be detected in increasing
- * order of TIDs during boot.
- * Search and set the I2O block device that we boot off from as
- * the first device to be claimed (as /dev/i2o/hda)
- * Properly attach/detach I2O gendisk structure from the system
- * gendisk list. The I2O block devices now appear in
- * /proc/partitions.
- * Markus Lidel <Markus.Lidel@shadowconnect.com>:
- * Minor bugfixes for 2.6.
- *
- * To do:
- * Serial number scanning to find duplicates for FC multipathing
- */
-
-#include <linux/major.h>
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/stat.h>
-#include <linux/pci.h>
-#include <linux/errno.h>
-#include <linux/file.h>
-#include <linux/ioctl.h>
-#include <linux/i2o.h>
-#include <linux/blkdev.h>
-#include <linux/blkpg.h>
-#include <linux/slab.h>
-#include <linux/hdreg.h>
-#include <linux/spinlock.h>
-#include <linux/bio.h>
-
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-
-#include <asm/uaccess.h>
-#include <asm/semaphore.h>
-#include <linux/completion.h>
-#include <asm/io.h>
-#include <linux/smp_lock.h>
-#include <linux/wait.h>
-
-#define MAJOR_NR I2O_MAJOR
-
-#define MAX_I2OB 16
-
-#define MAX_I2OB_DEPTH 8
-#define MAX_I2OB_RETRIES 4
-
-//#define DRIVERDEBUG
-#ifdef DRIVERDEBUG
-#define DEBUG( s ) printk( s )
-#else
-#define DEBUG( s )
-#endif
-
-/*
- * Events that this OSM is interested in
- */
-#define I2OB_EVENT_MASK (I2O_EVT_IND_BSA_VOLUME_LOAD | \
- I2O_EVT_IND_BSA_VOLUME_UNLOAD | \
- I2O_EVT_IND_BSA_VOLUME_UNLOAD_REQ | \
- I2O_EVT_IND_BSA_CAPACITY_CHANGE | \
- I2O_EVT_IND_BSA_SCSI_SMART )
-
-
-/*
- * Some of these can be made smaller later
- */
-
-static int i2ob_context;
-static struct block_device_operations i2ob_fops;
-
-/*
- * I2O Block device descriptor
- */
-struct i2ob_device
-{
- struct i2o_controller *controller;
- struct i2o_device *i2odev;
- int unit;
- int tid;
- int flags;
- int refcnt;
- struct request *head, *tail;
- request_queue_t *req_queue;
- int max_segments;
- int max_direct; /* Not yet used properly */
- int done_flag;
- int depth;
- int rcache;
- int wcache;
- int power;
- int index;
- int media_change_flag;
- u32 max_sectors;
- struct gendisk *gd;
-};
-
-/*
- * FIXME:
- * We should cache align these to avoid ping-ponging lines on SMP
- * boxes under heavy I/O load...
- */
-
-struct i2ob_request
-{
- struct i2ob_request *next;
- struct request *req;
- int num;
- int sg_dma_direction;
- int sg_nents;
- struct scatterlist sg_table[16];
-};
-
-/*
- * Per IOP request queue information
- *
- * We have a separate request_queue_t per IOP so that a heavilly
- * loaded I2O block device on an IOP does not starve block devices
- * across all I2O controllers.
- *
- */
-struct i2ob_iop_queue
-{
- unsigned int queue_depth;
- struct i2ob_request request_queue[MAX_I2OB_DEPTH];
- struct i2ob_request *i2ob_qhead;
- request_queue_t *req_queue;
- spinlock_t lock;
-};
-static struct i2ob_iop_queue *i2ob_queues[MAX_I2O_CONTROLLERS];
-
-/*
- * Each I2O disk is one of these.
- */
-
-static struct i2ob_device i2ob_dev[MAX_I2OB];
-static int i2ob_dev_count = 0;
-
-/*
- * Mutex and spin lock for event handling synchronization
- * evt_msg contains the last event.
- */
-static DECLARE_MUTEX_LOCKED(i2ob_evt_sem);
-static DECLARE_COMPLETION(i2ob_thread_dead);
-static spinlock_t i2ob_evt_lock = SPIN_LOCK_UNLOCKED;
-static u32 evt_msg[MSG_FRAME_SIZE];
-
-static void i2o_block_reply(struct i2o_handler *, struct i2o_controller *,
- struct i2o_message *);
-static void i2ob_new_device(struct i2o_controller *, struct i2o_device *);
-static void i2ob_del_device(struct i2o_controller *, struct i2o_device *);
-static void i2ob_reboot_event(void);
-static int i2ob_install_device(struct i2o_controller *, struct i2o_device *, int);
-static void i2ob_end_request(struct request *);
-static void i2ob_request(request_queue_t *);
-static int i2ob_init_iop(unsigned int);
-static int i2ob_query_device(struct i2ob_device *, int, int, void*, int);
-static int i2ob_evt(void *);
-
-static int evt_pid = 0;
-static int evt_running = 0;
-static int scan_unit = 0;
-
-/*
- * I2O OSM registration structure...keeps getting bigger and bigger :)
- */
-static struct i2o_handler i2o_block_handler =
-{
- i2o_block_reply,
- i2ob_new_device,
- i2ob_del_device,
- i2ob_reboot_event,
- "I2O Block OSM",
- 0,
- I2O_CLASS_RANDOM_BLOCK_STORAGE
-};
-
-/**
- * i2ob_get - Get an I2O message
- * @dev: I2O block device
- *
- * Get a message from the FIFO used for this block device. The message is returned
- * or the I2O 'no message' value of 0xFFFFFFFF if nothing is available.
- */
-
-static u32 i2ob_get(struct i2ob_device *dev)
-{
- struct i2o_controller *c=dev->controller;
- return I2O_POST_READ32(c);
-}
-
-static int i2ob_build_sglist(struct i2ob_device *dev, struct i2ob_request *ireq)
-{
- struct scatterlist *sg = ireq->sg_table;
- int nents;
-
- nents = blk_rq_map_sg(dev->req_queue, ireq->req, ireq->sg_table);
-
- if (rq_data_dir(ireq->req) == READ)
- ireq->sg_dma_direction = PCI_DMA_FROMDEVICE;
- else
- ireq->sg_dma_direction = PCI_DMA_TODEVICE;
-
- ireq->sg_nents = pci_map_sg(dev->controller->pdev, sg, nents, ireq->sg_dma_direction);
- return ireq->sg_nents;
-}
-
-void i2ob_free_sglist(struct i2ob_device *dev, struct i2ob_request *ireq)
-{
- struct pci_dev *pdev = dev->controller->pdev;
- struct scatterlist *sg = ireq->sg_table;
- int nents = ireq->sg_nents;
- pci_unmap_sg(pdev, sg, nents, ireq->sg_dma_direction);
-}
-
-/**
- * i2ob_send - Turn a request into a message and send it
- * @m: Message offset
- * @dev: I2O device
- * @ireq: Request structure
- * @unit: Device identity
- *
- * Generate an I2O BSAREAD request. This interface function is called for devices that
- * appear to explode when they are fed indirect chain pointers (notably right now this
- * appears to afflict Promise hardwre, so be careful what you feed the hardware
- *
- * No cleanup is done by this interface. It is done on the interrupt side when the
- * reply arrives
- */
-
-static int i2ob_send(u32 m, struct i2ob_device *dev, struct i2ob_request *ireq, int unit)
-{
- struct i2o_controller *c = dev->controller;
- int tid = dev->tid;
- void *msg;
- void *mptr;
- u64 offset;
- struct request *req = ireq->req;
- int count = req->nr_sectors<<9;
- struct scatterlist *sg;
- int sgnum;
- int i;
-
- // printk(KERN_INFO "i2ob_send called\n");
- /* Map the message to a virtual address */
- msg = c->msg_virt + m;
-
- sgnum = i2ob_build_sglist(dev, ireq);
-
- /* FIXME: if we have no resources how should we get out of this */
- if(sgnum == 0)
- BUG();
-
- /*
- * Build the message based on the request.
- */
- i2o_raw_writel(i2ob_context|(unit<<8), msg+8);
- i2o_raw_writel(ireq->num, msg+12);
- i2o_raw_writel(req->nr_sectors << 9, msg+20);
-
- /*
- * Mask out partitions from now on
- */
-
- /* This can be optimised later - just want to be sure its right for
- starters */
- offset = ((u64)req->sector) << 9;
- i2o_raw_writel( offset & 0xFFFFFFFF, msg+24);
- i2o_raw_writel(offset>>32, msg+28);
- mptr=msg+32;
-
- sg = ireq->sg_table;
- if(rq_data_dir(req) == READ)
- {
- DEBUG("READ\n");
- i2o_raw_writel(I2O_CMD_BLOCK_READ<<24|HOST_TID<<12|tid, msg+4);
- for(i = sgnum; i > 0; i--)
- {
- if(i != 1)
- i2o_raw_writel(0x10000000|sg_dma_len(sg), mptr);
- else
- i2o_raw_writel(0xD0000000|sg_dma_len(sg), mptr);
- i2o_raw_writel(sg_dma_address(sg), mptr+4);
- mptr += 8;
- count -= sg_dma_len(sg);
- sg++;
- }
- switch(dev->rcache)
- {
- case CACHE_NULL:
- i2o_raw_writel(0, msg+16);break;
- case CACHE_PREFETCH:
- i2o_raw_writel(0x201F0008, msg+16);break;
- case CACHE_SMARTFETCH:
- if(req->nr_sectors > 16)
- i2o_raw_writel(0x201F0008, msg+16);
- else
- i2o_raw_writel(0x001F0000, msg+16);
- break;
- }
-
-// printk("Reading %d entries %d bytes.\n",
-// mptr-msg-8, req->nr_sectors<<9);
- }
- else if(rq_data_dir(req) == WRITE)
- {
- DEBUG("WRITE\n");
- i2o_raw_writel(I2O_CMD_BLOCK_WRITE<<24|HOST_TID<<12|tid, msg+4);
- for(i = sgnum; i > 0; i--)
- {
- if(i != 1)
- i2o_raw_writel(0x14000000|sg_dma_len(sg), mptr);
- else
- i2o_raw_writel(0xD4000000|sg_dma_len(sg), mptr);
- i2o_raw_writel(sg_dma_address(sg), mptr+4);
- mptr += 8;
- count -= sg_dma_len(sg);
- sg++;
- }
-
- switch(dev->wcache)
- {
- case CACHE_NULL:
- i2o_raw_writel(0, msg+16);break;
- case CACHE_WRITETHROUGH:
- i2o_raw_writel(0x001F0008, msg+16);break;
- case CACHE_WRITEBACK:
- i2o_raw_writel(0x001F0010, msg+16);break;
- case CACHE_SMARTBACK:
- if(req->nr_sectors > 16)
- i2o_raw_writel(0x001F0004, msg+16);
- else
- i2o_raw_writel(0x001F0010, msg+16);
- break;
- case CACHE_SMARTTHROUGH:
- if(req->nr_sectors > 16)
- i2o_raw_writel(0x001F0004, msg+16);
- else
- i2o_raw_writel(0x001F0010, msg+16);
- }
-
-// printk("Writing %d entries %d bytes.\n",
-// mptr-msg-8, req->nr_sectors<<9);
- }
- i2o_raw_writel(I2O_MESSAGE_SIZE(mptr-msg)>>2 | SGL_OFFSET_8, msg);
-
- if(count != 0)
- {
- printk(KERN_ERR "Request count botched by %d.\n", count);
- }
-
- i2o_post_message(c,m);
- i2ob_queues[c->unit]->queue_depth ++;
-
- return 0;
-}
-
-/*
- * Remove a request from the _locked_ request list. We update both the
- * list chain and if this is the last item the tail pointer. Caller
- * must hold the lock.
- */
-
-static inline void i2ob_unhook_request(struct i2ob_request *ireq,
- unsigned int iop)
-{
- ireq->next = i2ob_queues[iop]->i2ob_qhead;
- i2ob_queues[iop]->i2ob_qhead = ireq;
-}
-
-/*
- * Request completion handler
- */
-
-static inline void i2ob_end_request(struct request *req)
-{
- /* FIXME - pci unmap the request */
-
- /*
- * Loop until all of the buffers that are linked
- * to this request have been marked updated and
- * unlocked.
- */
-
- while (end_that_request_first( req, !req->errors, req->hard_cur_sectors ));
-
- /*
- * It is now ok to complete the request.
- */
- end_that_request_last( req );
- DEBUG("IO COMPLETED\n");
-}
-
-/*
- * OSM reply handler. This gets all the message replies
- */
-
-static void i2o_block_reply(struct i2o_handler *h, struct i2o_controller *c, struct i2o_message *msg)
-{
- unsigned long flags;
- struct i2ob_request *ireq = NULL;
- u8 st;
- u32 *m = (u32 *)msg;
- u8 unit = m[2]>>8;
- struct i2ob_device *dev = &i2ob_dev[unit];
-
- /*
- * FAILed message
- */
- if(m[0] & (1<<13))
- {
- DEBUG("FAIL");
- /*
- * FAILed message from controller
- * We increment the error count and abort it
- *
- * In theory this will never happen. The I2O block class
- * specification states that block devices never return
- * FAILs but instead use the REQ status field...but
- * better be on the safe side since no one really follows
- * the spec to the book :)
- */
- ireq=&i2ob_queues[c->unit]->request_queue[m[3]];
- ireq->req->errors++;
-
- spin_lock_irqsave(dev->req_queue->queue_lock, flags);
- i2ob_unhook_request(ireq, c->unit);
- i2ob_end_request(ireq->req);
- spin_unlock_irqrestore(dev->req_queue->queue_lock, flags);
-
- /* Now flush the message by making it a NOP */
- m[0]&=0x00FFFFFF;
- m[0]|=(I2O_CMD_UTIL_NOP)<<24;
- i2o_post_message(c, (unsigned long) m - (unsigned long) c->msg_virt);
-
- return;
- }
-
- if(msg->function == I2O_CMD_UTIL_EVT_REGISTER)
- {
- spin_lock(&i2ob_evt_lock);
- memcpy(evt_msg, msg, (m[0]>>16)<<2);
- spin_unlock(&i2ob_evt_lock);
- up(&i2ob_evt_sem);
- return;
- }
-
- if(!dev->i2odev)
- {
- /*
- * This is HACK, but Intel Integrated RAID allows user
- * to delete a volume that is claimed, locked, and in use
- * by the OS. We have to check for a reply from a
- * non-existent device and flag it as an error or the system
- * goes kaput...
- */
- ireq=&i2ob_queues[c->unit]->request_queue[m[3]];
- ireq->req->errors++;
- printk(KERN_WARNING "I2O Block: Data transfer to deleted device!\n");
- spin_lock_irqsave(dev->req_queue->queue_lock, flags);
- i2ob_unhook_request(ireq, c->unit);
- i2ob_end_request(ireq->req);
- spin_unlock_irqrestore(dev->req_queue->queue_lock, flags);
- return;
- }
-
- /*
- * Lets see what is cooking. We stuffed the
- * request in the context.
- */
-
- ireq=&i2ob_queues[c->unit]->request_queue[m[3]];
- st=m[4]>>24;
-
- if(st!=0)
- {
- int err;
- char *bsa_errors[] =
- {
- "Success",
- "Media Error",
- "Failure communicating to device",
- "Device Failure",
- "Device is not ready",
- "Media not present",
- "Media is locked by another user",
- "Media has failed",
- "Failure communicating to device",
- "Device bus failure",
- "Device is locked by another user",
- "Device is write protected",
- "Device has reset",
- "Volume has changed, waiting for acknowledgement"
- };
-
- err = m[4]&0xFFFF;
-
- /*
- * Device not ready means two things. One is that the
- * the thing went offline (but not a removal media)
- *
- * The second is that you have a SuperTrak 100 and the
- * firmware got constipated. Unlike standard i2o card
- * setups the supertrak returns an error rather than
- * blocking for the timeout in these cases.
- *
- * Don't stick a supertrak100 into cache aggressive modes
- */
-
-
- printk(KERN_ERR "\n/dev/%s error: %s", dev->i2odev->dev_name,
- bsa_errors[m[4]&0XFFFF]);
- if(m[4]&0x00FF0000)
- printk(" - DDM attempted %d retries", (m[4]>>16)&0x00FF );
- printk(".\n");
- ireq->req->errors++;
- }
- else
- ireq->req->errors = 0;
-
- /*
- * Dequeue the request. We use irqsave locks as one day we
- * may be running polled controllers from a BH...
- */
-
- i2ob_free_sglist(dev, ireq);
- spin_lock_irqsave(dev->req_queue->queue_lock, flags);
- i2ob_unhook_request(ireq, c->unit);
- i2ob_end_request(ireq->req);
- i2ob_queues[c->unit]->queue_depth --;
-
- /*
- * We may be able to do more I/O
- */
-
- i2ob_request(dev->gd->queue);
- spin_unlock_irqrestore(dev->req_queue->queue_lock, flags);
-}
-
-/*
- * Event handler. Needs to be a separate thread b/c we may have
- * to do things like scan a partition table, or query parameters
- * which cannot be done from an interrupt or from a bottom half.
- */
-static int i2ob_evt(void *dummy)
-{
- unsigned int evt;
- unsigned long flags;
- struct i2ob_device *dev;
- int unit;
- //The only event that has data is the SCSI_SMART event.
- struct i2o_reply {
- u32 header[4];
- u32 evt_indicator;
- u8 ASC;
- u8 ASCQ;
- u16 pad;
- u8 data[16];
- } *evt_local;
-
- daemonize("i2oblock");
- allow_signal(SIGKILL);
-
- evt_running = 1;
-
- while(1)
- {
- if(down_interruptible(&i2ob_evt_sem))
- {
- evt_running = 0;
- printk("exiting...");
- break;
- }
-
- /*
- * Keep another CPU/interrupt from overwriting the
- * message while we're reading it
- *
- * We stuffed the unit in the TxContext and grab the event mask
- * None of the BSA we care about events have EventData
- */
- spin_lock_irqsave(&i2ob_evt_lock, flags);
- evt_local = (struct i2o_reply *)evt_msg;
- spin_unlock_irqrestore(&i2ob_evt_lock, flags);
-
- unit = le32_to_cpu(evt_local->header[3]);
- evt = le32_to_cpu(evt_local->evt_indicator);
-
- dev = &i2ob_dev[unit];
- switch(evt)
- {
- /*
- * New volume loaded on same TID, so we just re-install.
- * The TID/controller don't change as it is the same
- * I2O device. It's just new media that we have to
- * rescan.
- */
- case I2O_EVT_IND_BSA_VOLUME_LOAD:
- {
- i2ob_install_device(dev->i2odev->controller,
- dev->i2odev, unit);
- add_disk(dev->gd);
- break;
- }
-
- /*
- * No media, so set all parameters to 0 and set the media
- * change flag. The I2O device is still valid, just doesn't
- * have media, so we don't want to clear the controller or
- * device pointer.
- */
- case I2O_EVT_IND_BSA_VOLUME_UNLOAD:
- {
- struct gendisk *p = dev->gd;
- blk_queue_max_sectors(dev->gd->queue, 0);
- del_gendisk(p);
- put_disk(p);
- dev->gd = NULL;
- dev->media_change_flag = 1;
- break;
- }
-
- case I2O_EVT_IND_BSA_VOLUME_UNLOAD_REQ:
- printk(KERN_WARNING "%s: Attempt to eject locked media\n",
- dev->i2odev->dev_name);
- break;
-
- /*
- * The capacity has changed and we are going to be
- * updating the max_sectors and other information
- * about this disk. We try a revalidate first. If
- * the block device is in use, we don't want to
- * do that as there may be I/Os bound for the disk
- * at the moment. In that case we read the size
- * from the device and update the information ourselves
- * and the user can later force a partition table
- * update through an ioctl.
- */
- case I2O_EVT_IND_BSA_CAPACITY_CHANGE:
- {
- u64 size;
-
- if(i2ob_query_device(dev, 0x0004, 0, &size, 8) !=0 )
- i2ob_query_device(dev, 0x0000, 4, &size, 8);
-
- spin_lock_irqsave(dev->req_queue->queue_lock, flags);
- set_capacity(dev->gd, size>>9);
- spin_unlock_irqrestore(dev->req_queue->queue_lock, flags);
- break;
- }
-
- /*
- * We got a SCSI SMART event, we just log the relevant
- * information and let the user decide what they want
- * to do with the information.
- */
- case I2O_EVT_IND_BSA_SCSI_SMART:
- {
- char buf[16];
- printk(KERN_INFO "I2O Block: %s received a SCSI SMART Event\n",dev->i2odev->dev_name);
- evt_local->data[16]='\0';
- sprintf(buf,"%s",&evt_local->data[0]);
- printk(KERN_INFO " Disk Serial#:%s\n",buf);
- printk(KERN_INFO " ASC 0x%02x \n",evt_local->ASC);
- printk(KERN_INFO " ASCQ 0x%02x \n",evt_local->ASCQ);
- break;
- }
-
- /*
- * Non event
- */
-
- case 0:
- break;
-
- /*
- * An event we didn't ask for. Call the card manufacturer
- * and tell them to fix their firmware :)
- */
-
- case 0x20:
- /*
- * If a promise card reports 0x20 event then the brown stuff
- * hit the fan big time. The card seems to recover but loses
- * the pending writes. Deeply ungood except for testing fsck
- */
- if(dev->i2odev->controller->promise)
- panic("I2O controller firmware failed. Reboot and force a filesystem check.\n");
- default:
- printk(KERN_INFO "%s: Received event 0x%X we didn't register for\n"
- KERN_INFO " Blame the I2O card manufacturer 8)\n",
- dev->i2odev->dev_name, evt);
- break;
- }
- };
-
- complete_and_exit(&i2ob_thread_dead,0);
- return 0;
-}
-
-/*
- * The I2O block driver is listed as one of those that pulls the
- * front entry off the queue before processing it. This is important
- * to remember here. If we drop the io lock then CURRENT will change
- * on us. We must unlink CURRENT in this routine before we return, if
- * we use it.
- */
-
-static void i2ob_request(request_queue_t *q)
-{
- struct request *req;
- struct i2ob_request *ireq;
- struct i2ob_device *dev;
- u32 m;
-
- while ((req = elv_next_request(q)) != NULL) {
- dev = req->rq_disk->private_data;
-
- /*
- * Queue depths probably belong with some kind of
- * generic IOP commit control. Certainly it's not right
- * its global!
- */
- if(i2ob_queues[dev->unit]->queue_depth >= dev->depth)
- break;
-
- /* Get a message */
- m = i2ob_get(dev);
-
- if(m==0xFFFFFFFF)
- {
- if(i2ob_queues[dev->unit]->queue_depth == 0)
- printk(KERN_ERR "i2o_block: message queue and request queue empty!!\n");
- break;
- }
- /*
- * Everything ok, so pull from kernel queue onto our queue
- */
- req->errors = 0;
- blkdev_dequeue_request(req);
-
- ireq = i2ob_queues[dev->unit]->i2ob_qhead;
- i2ob_queues[dev->unit]->i2ob_qhead = ireq->next;
- ireq->req = req;
-
- i2ob_send(m, dev, ireq, dev->index);
- }
-}
-
-
-/*
- * SCSI-CAM for ioctl geometry mapping
- * Duplicated with SCSI - this should be moved into somewhere common
- * perhaps genhd ?
- *
- * LBA -> CHS mapping table taken from:
- *
- * "Incorporating the I2O Architecture into BIOS for Intel Architecture
- * Platforms"
- *
- * This is an I2O document that is only available to I2O members,
- * not developers.
- *
- * From my understanding, this is how all the I2O cards do this
- *
- * Disk Size | Sectors | Heads | Cylinders
- * ---------------+---------+-------+-------------------
- * 1 < X <= 528M | 63 | 16 | X/(63 * 16 * 512)
- * 528M < X <= 1G | 63 | 32 | X/(63 * 32 * 512)
- * 1 < X <528M | 63 | 16 | X/(63 * 16 * 512)
- * 1 < X <528M | 63 | 16 | X/(63 * 16 * 512)
- *
- */
-#define BLOCK_SIZE_528M 1081344
-#define BLOCK_SIZE_1G 2097152
-#define BLOCK_SIZE_21G 4403200
-#define BLOCK_SIZE_42G 8806400
-#define BLOCK_SIZE_84G 17612800
-
-static void i2o_block_biosparam(
- unsigned long capacity,
- unsigned short *cyls,
- unsigned char *hds,
- unsigned char *secs)
-{
- unsigned long heads, sectors, cylinders;
-
- sectors = 63L; /* Maximize sectors per track */
- if(capacity <= BLOCK_SIZE_528M)
- heads = 16;
- else if(capacity <= BLOCK_SIZE_1G)
- heads = 32;
- else if(capacity <= BLOCK_SIZE_21G)
- heads = 64;
- else if(capacity <= BLOCK_SIZE_42G)
- heads = 128;
- else
- heads = 255;
-
- cylinders = (unsigned long)capacity / (heads * sectors);
-
- *cyls = (unsigned short) cylinders; /* Stuff return values */
- *secs = (unsigned char) sectors;
- *hds = (unsigned char) heads;
-}
-
-/*
- * Issue device specific ioctl calls.
- */
-
-static int i2ob_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- struct gendisk *disk = inode->i_bdev->bd_disk;
- struct i2ob_device *dev = disk->private_data;
- void __user *argp = (void __user *)arg;
-
- /* Anyone capable of this syscall can do *real bad* things */
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- switch (cmd) {
- case HDIO_GETGEO:
- {
- struct hd_geometry g;
- i2o_block_biosparam(get_capacity(disk),
- &g.cylinders, &g.heads, &g.sectors);
- g.start = get_start_sect(inode->i_bdev);
- return copy_to_user(argp, &g, sizeof(g))?-EFAULT:0;
- }
-
- case BLKI2OGRSTRAT:
- return put_user(dev->rcache, (int __user *)argp);
- case BLKI2OGWSTRAT:
- return put_user(dev->wcache, (int __user *)argp);
- case BLKI2OSRSTRAT:
- if(arg<0||arg>CACHE_SMARTFETCH)
- return -EINVAL;
- dev->rcache = arg;
- break;
- case BLKI2OSWSTRAT:
- if(arg!=0 && (arg<CACHE_WRITETHROUGH || arg>CACHE_SMARTBACK))
- return -EINVAL;
- dev->wcache = arg;
- break;
- }
- return -ENOTTY;
-}
-
-/*
- * Close the block device down
- */
-
-static int i2ob_release(struct inode *inode, struct file *file)
-{
- struct gendisk *disk = inode->i_bdev->bd_disk;
- struct i2ob_device *dev = disk->private_data;
-
- /*
- * This is to deail with the case of an application
- * opening a device and then the device dissapears while
- * it's in use, and then the application tries to release
- * it. ex: Unmounting a deleted RAID volume at reboot.
- * If we send messages, it will just cause FAILs since
- * the TID no longer exists.
- */
- if(!dev->i2odev)
- return 0;
-
- if (dev->refcnt <= 0)
- printk(KERN_ALERT "i2ob_release: refcount(%d) <= 0\n", dev->refcnt);
- dev->refcnt--;
- if(dev->refcnt==0)
- {
- /*
- * Flush the onboard cache on unmount
- */
- u32 msg[5];
- int *query_done = &dev->done_flag;
- msg[0] = (FIVE_WORD_MSG_SIZE|SGL_OFFSET_0);
- msg[1] = I2O_CMD_BLOCK_CFLUSH<<24|HOST_TID<<12|dev->tid;
- msg[2] = i2ob_context|0x40000000;
- msg[3] = (u32)query_done;
- msg[4] = 60<<16;
- DEBUG("Flushing...");
- i2o_post_wait(dev->controller, msg, 20, 60);
-
- /*
- * Unlock the media
- */
- msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_BLOCK_MUNLOCK<<24|HOST_TID<<12|dev->tid;
- msg[2] = i2ob_context|0x40000000;
- msg[3] = (u32)query_done;
- msg[4] = -1;
- DEBUG("Unlocking...");
- i2o_post_wait(dev->controller, msg, 20, 2);
- DEBUG("Unlocked.\n");
-
- msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_BLOCK_POWER<<24 | HOST_TID << 12 | dev->tid;
- if(dev->flags & (1<<3|1<<4)) /* Removable */
- msg[4] = 0x21 << 24;
- else
- msg[4] = 0x24 << 24;
-
- if(i2o_post_wait(dev->controller, msg, 20, 60)==0)
- dev->power = 0x24;
-
- /*
- * Now unclaim the device.
- */
-
- if (i2o_release_device(dev->i2odev, &i2o_block_handler))
- printk(KERN_ERR "i2ob_release: controller rejected unclaim.\n");
-
- DEBUG("Unclaim\n");
- }
- return 0;
-}
-
-/*
- * Open the block device.
- */
-
-static int i2ob_open(struct inode *inode, struct file *file)
-{
- struct gendisk *disk = inode->i_bdev->bd_disk;
- struct i2ob_device *dev = disk->private_data;
-
- if(!dev->i2odev)
- return -ENODEV;
-
- if(dev->refcnt++==0)
- {
- u32 msg[6];
-
- DEBUG("Claim ");
- if(i2o_claim_device(dev->i2odev, &i2o_block_handler))
- {
- dev->refcnt--;
- printk(KERN_INFO "I2O Block: Could not open device\n");
- return -EBUSY;
- }
- DEBUG("Claimed ");
- /*
- * Power up if needed
- */
-
- if(dev->power > 0x1f)
- {
- msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_BLOCK_POWER<<24 | HOST_TID << 12 | dev->tid;
- msg[4] = 0x02 << 24;
- if(i2o_post_wait(dev->controller, msg, 20, 60) == 0)
- dev->power = 0x02;
- }
-
- /*
- * Mount the media if needed. Note that we don't use
- * the lock bit. Since we have to issue a lock if it
- * refuses a mount (quite possible) then we might as
- * well just send two messages out.
- */
- msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_BLOCK_MMOUNT<<24|HOST_TID<<12|dev->tid;
- msg[4] = -1;
- msg[5] = 0;
- DEBUG("Mount ");
- i2o_post_wait(dev->controller, msg, 24, 2);
-
- /*
- * Lock the media
- */
- msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_BLOCK_MLOCK<<24|HOST_TID<<12|dev->tid;
- msg[4] = -1;
- DEBUG("Lock ");
- i2o_post_wait(dev->controller, msg, 20, 2);
- DEBUG("Ready.\n");
- }
- return 0;
-}
-
-/*
- * Issue a device query
- */
-
-static int i2ob_query_device(struct i2ob_device *dev, int table,
- int field, void *buf, int buflen)
-{
- return i2o_query_scalar(dev->controller, dev->tid,
- table, field, buf, buflen);
-}
-
-
-/*
- * Install the I2O block device we found.
- */
-
-static int i2ob_install_device(struct i2o_controller *c, struct i2o_device *d, int unit)
-{
- u64 size;
- u32 blocksize;
- u8 type;
- u16 power;
- u32 flags, status;
- struct i2ob_device *dev=&i2ob_dev[unit];
- struct gendisk *disk;
- request_queue_t *q;
- int segments;
-
-
- /*
- * For logging purposes...
- */
- printk(KERN_INFO "i2ob: Installing tid %d device at unit %d\n",
- d->lct_data.tid, unit);
-
- /*
- * If this is the first I2O block device found on this IOP,
- * we need to initialize all the queue data structures
- * before any I/O can be performed. If it fails, this
- * device is useless.
- */
- if(!i2ob_queues[c->unit]) {
- if(i2ob_init_iop(c->unit))
- return 1;
- }
-
- q = i2ob_queues[c->unit]->req_queue;
-
- /*
- * This will save one level of lookup/indirection in critical
- * code so that we can directly get the queue ptr from the
- * device instead of having to go the IOP data structure.
- */
- dev->req_queue = q;
-
- /*
- * Allocate a gendisk structure and initialize it
- */
- disk = alloc_disk(16);
- if (!disk)
- return 1;
-
- dev->gd = disk;
- /* initialize gendik structure */
- disk->major = MAJOR_NR;
- disk->first_minor = unit<<4;
- disk->queue = q;
- disk->fops = &i2ob_fops;
- sprintf(disk->disk_name, "i2o/hd%c", 'a' + unit);
- disk->private_data = dev;
-
- /*
- * Ask for the current media data. If that isn't supported
- * then we ask for the device capacity data
- */
- if(i2ob_query_device(dev, 0x0004, 1, &blocksize, 4) != 0
- || i2ob_query_device(dev, 0x0004, 0, &size, 8) !=0 )
- {
- i2ob_query_device(dev, 0x0000, 3, &blocksize, 4);
- i2ob_query_device(dev, 0x0000, 4, &size, 8);
- }
-
- if(i2ob_query_device(dev, 0x0000, 2, &power, 2)!=0)
- power = 0;
- i2ob_query_device(dev, 0x0000, 5, &flags, 4);
- i2ob_query_device(dev, 0x0000, 6, &status, 4);
- set_capacity(disk, size>>9);
-
- /*
- * Max number of Scatter-Gather Elements
- */
-
- dev->power = power; /* Save power state in device proper */
- dev->flags = flags;
-
- segments = (d->controller->status_block->inbound_frame_size - 7) / 2;
-
- if(segments > 16)
- segments = 16;
-
- dev->power = power; /* Save power state */
- dev->flags = flags; /* Keep the type info */
-
- blk_queue_max_sectors(q, 96); /* 256 might be nicer but many controllers
- explode on 65536 or higher */
- blk_queue_max_phys_segments(q, segments);
- blk_queue_max_hw_segments(q, segments);
-
- dev->rcache = CACHE_SMARTFETCH;
- dev->wcache = CACHE_WRITETHROUGH;
-
- if(d->controller->battery == 0)
- dev->wcache = CACHE_WRITETHROUGH;
-
- if(d->controller->promise)
- dev->wcache = CACHE_WRITETHROUGH;
-
- if(d->controller->short_req)
- {
- blk_queue_max_sectors(q, 8);
- blk_queue_max_phys_segments(q, 8);
- blk_queue_max_hw_segments(q, 8);
- }
-
- strcpy(d->dev_name, disk->disk_name);
- strcpy(disk->devfs_name, disk->disk_name);
-
- printk(KERN_INFO "%s: Max segments %d, queue depth %d, byte limit %d.\n",
- d->dev_name, dev->max_segments, dev->depth, dev->max_sectors<<9);
-
- i2ob_query_device(dev, 0x0000, 0, &type, 1);
-
- printk(KERN_INFO "%s: ", d->dev_name);
- switch(type)
- {
- case 0: printk("Disk Storage");break;
- case 4: printk("WORM");break;
- case 5: printk("CD-ROM");break;
- case 7: printk("Optical device");break;
- default:
- printk("Type %d", type);
- }
- if(status&(1<<10))
- printk("(RAID)");
-
- if((flags^status)&(1<<4|1<<3)) /* Missing media or device */
- {
- printk(KERN_INFO " Not loaded.\n");
- /* Device missing ? */
- if((flags^status)&(1<<4))
- return 1;
- }
- else
- {
- printk(": %dMB, %d byte sectors",
- (int)(size>>20), blocksize);
- }
- if(status&(1<<0))
- {
- u32 cachesize;
- i2ob_query_device(dev, 0x0003, 0, &cachesize, 4);
- cachesize>>=10;
- if(cachesize>4095)
- printk(", %dMb cache", cachesize>>10);
- else
- printk(", %dKb cache", cachesize);
- }
- printk(".\n");
- printk(KERN_INFO "%s: Maximum sectors/read set to %d.\n",
- d->dev_name, dev->max_sectors);
-
- /*
- * Register for the events we're interested in and that the
- * device actually supports.
- */
-
- i2o_event_register(c, d->lct_data.tid, i2ob_context, unit,
- (I2OB_EVENT_MASK & d->lct_data.event_capabilities));
- return 0;
-}
-
-/*
- * Initialize IOP specific queue structures. This is called
- * once for each IOP that has a block device sitting behind it.
- */
-static int i2ob_init_iop(unsigned int unit)
-{
- int i;
-
- i2ob_queues[unit] = (struct i2ob_iop_queue *) kmalloc(sizeof(struct i2ob_iop_queue), GFP_ATOMIC);
- if(!i2ob_queues[unit])
- {
- printk(KERN_WARNING "Could not allocate request queue for I2O block device!\n");
- return -1;
- }
-
- for(i = 0; i< MAX_I2OB_DEPTH; i++)
- {
- i2ob_queues[unit]->request_queue[i].next = &i2ob_queues[unit]->request_queue[i+1];
- i2ob_queues[unit]->request_queue[i].num = i;
- }
-
- /* Queue is MAX_I2OB + 1... */
- i2ob_queues[unit]->request_queue[i].next = NULL;
- i2ob_queues[unit]->i2ob_qhead = &i2ob_queues[unit]->request_queue[0];
- i2ob_queues[unit]->queue_depth = 0;
-
- i2ob_queues[unit]->lock = SPIN_LOCK_UNLOCKED;
- i2ob_queues[unit]->req_queue = blk_init_queue(i2ob_request, &i2ob_queues[unit]->lock);
- if (!i2ob_queues[unit]->req_queue) {
- kfree(i2ob_queues[unit]);
- return -1;
- }
-
- i2ob_queues[unit]->req_queue->queuedata = &i2ob_queues[unit];
-
- return 0;
-}
-
-/*
- * Probe the I2O subsytem for block class devices
- */
-static void i2ob_scan(int bios)
-{
- int i;
- int warned = 0;
-
- struct i2o_device *d, *b=NULL;
- struct i2o_controller *c;
-
- for(i=0; i< MAX_I2O_CONTROLLERS; i++)
- {
- c=i2o_find_controller(i);
-
- if(c==NULL)
- continue;
-
- /*
- * The device list connected to the I2O Controller is doubly linked
- * Here we traverse the end of the list , and start claiming devices
- * from that end. This assures that within an I2O controller atleast
- * the newly created volumes get claimed after the older ones, thus
- * mapping to same major/minor (and hence device file name) after
- * every reboot.
- * The exception being:
- * 1. If there was a TID reuse.
- * 2. There was more than one I2O controller.
- */
-
- if(!bios)
- {
- for (d=c->devices;d!=NULL;d=d->next)
- if(d->next == NULL)
- b = d;
- }
- else
- b = c->devices;
-
- while(b != NULL)
- {
- d=b;
- if(bios)
- b = b->next;
- else
- b = b->prev;
-
- if(d->lct_data.class_id!=I2O_CLASS_RANDOM_BLOCK_STORAGE)
- continue;
-
- if(d->lct_data.user_tid != 0xFFF)
- continue;
-
- if(bios)
- {
- if(d->lct_data.bios_info != 0x80)
- continue;
- printk(KERN_INFO "Claiming as Boot device: Controller %d, TID %d\n", c->unit, d->lct_data.tid);
- }
- else
- {
- if(d->lct_data.bios_info == 0x80)
- continue; /*Already claimed on pass 1 */
- }
-
- if(scan_unit<MAX_I2OB)
- i2ob_new_device(c, d);
- else
- {
- if(!warned++)
- printk(KERN_WARNING "i2o_block: too many device, registering only %d.\n", scan_unit);
- }
- }
- i2o_unlock_controller(c);
- }
-}
-
-static void i2ob_probe(void)
-{
- /*
- * Some overhead/redundancy involved here, while trying to
- * claim the first boot volume encountered as /dev/i2o/hda
- * everytime. All the i2o_controllers are searched and the
- * first i2o block device marked as bootable is claimed
- * If an I2O block device was booted off , the bios sets
- * its bios_info field to 0x80, this what we search for.
- * Assuming that the bootable volume is /dev/i2o/hda
- * everytime will prevent any kernel panic while mounting
- * root partition
- */
-
- printk(KERN_INFO "i2o_block: Checking for Boot device...\n");
- i2ob_scan(1);
-
- /*
- * Now the remainder.
- */
- printk(KERN_INFO "i2o_block: Checking for I2O Block devices...\n");
- i2ob_scan(0);
-}
-
-
-/*
- * New device notification handler. Called whenever a new
- * I2O block storage device is added to the system.
- *
- * Should we spin lock around this to keep multiple devs from
- * getting updated at the same time?
- *
- */
-void i2ob_new_device(struct i2o_controller *c, struct i2o_device *d)
-{
- struct i2ob_device *dev;
- int unit = 0;
-
- printk(KERN_INFO "i2o_block: New device detected\n");
- printk(KERN_INFO " Controller %d Tid %d\n",c->unit, d->lct_data.tid);
-
- /* Check for available space */
- if(i2ob_dev_count>=MAX_I2OB)
- {
- printk(KERN_ERR "i2o_block: No more devices allowed!\n");
- return;
- }
- for(unit = 0; unit < MAX_I2OB; unit ++)
- {
- if(!i2ob_dev[unit].i2odev)
- break;
- }
-
- if(i2o_claim_device(d, &i2o_block_handler))
- {
- printk(KERN_INFO "i2o_block: Unable to claim device. Installation aborted\n");
- return;
- }
-
- dev = &i2ob_dev[unit];
- dev->i2odev = d;
- dev->controller = c;
- dev->tid = d->lct_data.tid;
- dev->unit = c->unit;
-
- if(i2ob_install_device(c,d,unit)) {
- i2o_release_device(d, &i2o_block_handler);
- printk(KERN_ERR "i2o_block: Could not install new device\n");
- }
- else
- {
- i2o_release_device(d, &i2o_block_handler);
- add_disk(dev->gd);
- i2ob_dev_count++;
- i2o_device_notify_on(d, &i2o_block_handler);
- }
-
- return;
-}
-
-/*
- * Deleted device notification handler. Called when a device we
- * are talking to has been deleted by the user or some other
- * mysterious fource outside the kernel.
- */
-void i2ob_del_device(struct i2o_controller *c, struct i2o_device *d)
-{
- int unit = 0;
- unsigned long flags;
- struct i2ob_device *dev;
-
- for(unit = 0; unit < MAX_I2OB; unit ++)
- {
- dev = &i2ob_dev[unit];
- if(dev->i2odev == d)
- {
- printk(KERN_INFO " /dev/%s: Controller %d Tid %d\n",
- d->dev_name, c->unit, d->lct_data.tid);
- break;
- }
- }
-
- printk(KERN_INFO "I2O Block Device Deleted\n");
-
- if(unit >= MAX_I2OB)
- {
- printk(KERN_ERR "i2ob_del_device called, but not in dev table!\n");
- return;
- }
-
- spin_lock_irqsave(dev->req_queue->queue_lock, flags);
-
- /*
- * Need to do this...we somtimes get two events from the IRTOS
- * in a row and that causes lots of problems.
- */
- i2o_device_notify_off(d, &i2o_block_handler);
-
- /*
- * This will force errors when i2ob_get_queue() is called
- * by the kenrel.
- */
- if(dev->gd) {
- struct gendisk *gd = dev->gd;
- gd->queue = NULL;
- del_gendisk(gd);
- put_disk(gd);
- dev->gd = NULL;
- }
- spin_unlock_irqrestore(dev->req_queue->queue_lock, flags);
- dev->req_queue = NULL;
- dev->i2odev = NULL;
- dev->refcnt = 0;
- dev->tid = 0;
-
- /*
- * Do we need this?
- * The media didn't really change...the device is just gone
- */
- dev->media_change_flag = 1;
-
- i2ob_dev_count--;
-}
-
-/*
- * Have we seen a media change ?
- */
-static int i2ob_media_change(struct gendisk *disk)
-{
- struct i2ob_device *p = disk->private_data;
- if(p->media_change_flag)
- {
- p->media_change_flag=0;
- return 1;
- }
- return 0;
-}
-
-static int i2ob_revalidate(struct gendisk *disk)
-{
- struct i2ob_device *p = disk->private_data;
- return i2ob_install_device(p->controller, p->i2odev, p->index);
-}
-
-/*
- * Reboot notifier. This is called by i2o_core when the system
- * shuts down.
- */
-static void i2ob_reboot_event(void)
-{
- int i;
-
- for(i=0;i<MAX_I2OB;i++)
- {
- struct i2ob_device *dev=&i2ob_dev[i];
-
- if(dev->refcnt!=0)
- {
- /*
- * Flush the onboard cache
- */
- u32 msg[5];
- int *query_done = &dev->done_flag;
- msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_BLOCK_CFLUSH<<24|HOST_TID<<12|dev->tid;
- msg[2] = i2ob_context|0x40000000;
- msg[3] = (u32)query_done;
- msg[4] = 60<<16;
-
- DEBUG("Flushing...");
- i2o_post_wait(dev->controller, msg, 20, 60);
-
- DEBUG("Unlocking...");
- /*
- * Unlock the media
- */
- msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_BLOCK_MUNLOCK<<24|HOST_TID<<12|dev->tid;
- msg[2] = i2ob_context|0x40000000;
- msg[3] = (u32)query_done;
- msg[4] = -1;
- i2o_post_wait(dev->controller, msg, 20, 2);
-
- DEBUG("Unlocked.\n");
- }
- }
-}
-
-static struct block_device_operations i2ob_fops =
-{
- .owner = THIS_MODULE,
- .open = i2ob_open,
- .release = i2ob_release,
- .ioctl = i2ob_ioctl,
- .media_changed = i2ob_media_change,
- .revalidate_disk= i2ob_revalidate,
-};
-
-/*
- * And here should be modules and kernel interface
- * (Just smiley confuses emacs :-)
- */
-
-static int i2o_block_init(void)
-{
- int i;
-
- printk(KERN_INFO "I2O Block Storage OSM v0.9\n");
- printk(KERN_INFO " (c) Copyright 1999-2001 Red Hat Software.\n");
-
- /*
- * Register the block device interfaces
- */
- if (register_blkdev(MAJOR_NR, "i2o_block"))
- return -EIO;
-
-#ifdef MODULE
- printk(KERN_INFO "i2o_block: registered device at major %d\n", MAJOR_NR);
-#endif
-
- /*
- * Set up the queue
- */
- for(i = 0; i < MAX_I2O_CONTROLLERS; i++)
- i2ob_queues[i] = NULL;
-
- /*
- * Now fill in the boiler plate
- */
-
- for (i = 0; i < MAX_I2OB; i++) {
- struct i2ob_device *dev = &i2ob_dev[i];
- dev->index = i;
- dev->refcnt = 0;
- dev->flags = 0;
- dev->controller = NULL;
- dev->i2odev = NULL;
- dev->tid = 0;
- dev->head = NULL;
- dev->tail = NULL;
- dev->depth = MAX_I2OB_DEPTH;
- dev->max_sectors = 2;
- dev->gd = NULL;
- }
-
- /*
- * Register the OSM handler as we will need this to probe for
- * drives, geometry and other goodies.
- */
-
- if(i2o_install_handler(&i2o_block_handler)<0)
- {
- unregister_blkdev(MAJOR_NR, "i2o_block");
- printk(KERN_ERR "i2o_block: unable to register OSM.\n");
- return -EINVAL;
- }
- i2ob_context = i2o_block_handler.context;
-
- /*
- * Initialize event handling thread
- */
- init_MUTEX_LOCKED(&i2ob_evt_sem);
- evt_pid = kernel_thread(i2ob_evt, NULL, CLONE_SIGHAND);
- if(evt_pid < 0)
- {
- printk(KERN_ERR "i2o_block: Could not initialize event thread. Aborting\n");
- i2o_remove_handler(&i2o_block_handler);
- return 0;
- }
-
- i2ob_probe();
-
- return 0;
-
- unregister_blkdev(MAJOR_NR, "i2o_block");
- return -ENOMEM;
-}
-
-
-static void i2o_block_exit(void)
-{
- int i;
-
- if(evt_running) {
- printk(KERN_INFO "Killing I2O block threads...");
- i = kill_proc(evt_pid, SIGKILL, 1);
- if(!i) {
- printk("waiting...\n");
- }
- /* Be sure it died */
- wait_for_completion(&i2ob_thread_dead);
- printk("done.\n");
- }
-
- /*
- * Unregister for updates from any devices..otherwise we still
- * get them and the core jumps to random memory :O
- */
- if(i2ob_dev_count) {
- struct i2o_device *d;
- for(i = 0; i < MAX_I2OB; i++)
- if((d = i2ob_dev[i].i2odev))
- i2ob_del_device(d->controller, d);
- }
-
- /*
- * We may get further callbacks for ourself. The i2o_core
- * code handles this case reasonably sanely. The problem here
- * is we shouldn't get them .. but a couple of cards feel
- * obliged to tell us stuff we don't care about.
- *
- * This isnt ideal at all but will do for now.
- */
-
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(HZ);
-
- /*
- * Flush the OSM
- */
-
- i2o_remove_handler(&i2o_block_handler);
-
- /*
- * Return the block device
- */
- if (unregister_blkdev(MAJOR_NR, "i2o_block") != 0)
- printk("i2o_block: cleanup_module failed\n");
-
- /*
- * release request queue
- */
- for (i = 0; i < MAX_I2O_CONTROLLERS; i ++)
- if(i2ob_queues[i]) {
- blk_cleanup_queue(i2ob_queues[i]->req_queue);
- kfree(i2ob_queues[i]);
- }
-}
-
-MODULE_AUTHOR("Red Hat");
-MODULE_DESCRIPTION("I2O Block Device OSM");
-MODULE_LICENSE("GPL");
-
-module_init(i2o_block_init);
-module_exit(i2o_block_exit);
diff -L drivers/message/i2o/i2o_config.c -puN drivers/message/i2o/i2o_config.c~i2o-build_99 /dev/null
--- 25/drivers/message/i2o/i2o_config.c
+++ /dev/null Thu Apr 11 07:25:15 2002
@@ -1,1149 +0,0 @@
-/*
- * I2O Configuration Interface Driver
- *
- * (C) Copyright 1999-2002 Red Hat
- *
- * Written by Alan Cox, Building Number Three Ltd
- *
- * Fixes/additions:
- * Deepak Saxena (04/20/1999):
- * Added basic ioctl() support
- * Deepak Saxena (06/07/1999):
- * Added software download ioctl (still testing)
- * Auvo H�kkinen (09/10/1999):
- * Changes to i2o_cfg_reply(), ioctl_parms()
- * Added ioct_validate()
- * Taneli V�h�kangas (09/30/1999):
- * Fixed ioctl_swdl()
- * Taneli V�h�kangas (10/04/1999):
- * Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel()
- * Deepak Saxena (11/18/1999):
- * Added event managmenet support
- * Alan Cox <alan@redhat.com>:
- * 2.4 rewrite ported to 2.5
- * Markus Lidel <Markus.Lidel@shadowconnect.com>:
- * Added pass-thru support for Adaptec's raidutils
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/i2o.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/miscdevice.h>
-#include <linux/mm.h>
-#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
-
-#include <asm/uaccess.h>
-#include <asm/io.h>
-
-static int i2o_cfg_context = -1;
-static void *page_buf;
-static spinlock_t i2o_config_lock = SPIN_LOCK_UNLOCKED;
-struct wait_queue *i2o_wait_queue;
-
-#define MODINC(x,y) ((x) = ((x) + 1) % (y))
-
-struct sg_simple_element {
- u32 flag_count;
- u32 addr_bus;
-};
-
-struct i2o_cfg_info
-{
- struct file* fp;
- struct fasync_struct *fasync;
- struct i2o_evt_info event_q[I2O_EVT_Q_LEN];
- u16 q_in; // Queue head index
- u16 q_out; // Queue tail index
- u16 q_len; // Queue length
- u16 q_lost; // Number of lost events
- u32 q_id; // Event queue ID...used as tx_context
- struct i2o_cfg_info *next;
-};
-static struct i2o_cfg_info *open_files = NULL;
-static int i2o_cfg_info_id = 0;
-
-static int ioctl_getiops(unsigned long);
-static int ioctl_gethrt(unsigned long);
-static int ioctl_getlct(unsigned long);
-static int ioctl_parms(unsigned long, unsigned int);
-static int ioctl_html(unsigned long);
-static int ioctl_swdl(unsigned long);
-static int ioctl_swul(unsigned long);
-static int ioctl_swdel(unsigned long);
-static int ioctl_validate(unsigned long);
-static int ioctl_evt_reg(unsigned long, struct file *);
-static int ioctl_evt_get(unsigned long, struct file *);
-static int ioctl_passthru(unsigned long);
-static int cfg_fasync(int, struct file*, int);
-
-/*
- * This is the callback for any message we have posted. The message itself
- * will be returned to the message pool when we return from the IRQ
- *
- * This runs in irq context so be short and sweet.
- */
-static void i2o_cfg_reply(struct i2o_handler *h, struct i2o_controller *c, struct i2o_message *m)
-{
- u32 *msg = (u32 *)m;
-
- if (msg[0] & MSG_FAIL) {
- u32 *preserved_msg = (u32*)(c->msg_virt + msg[7]);
-
- printk(KERN_ERR "i2o_config: IOP failed to process the msg.\n");
-
- /* Release the preserved msg frame by resubmitting it as a NOP */
-
- preserved_msg[0] = THREE_WORD_MSG_SIZE | SGL_OFFSET_0;
- preserved_msg[1] = I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0;
- preserved_msg[2] = 0;
- i2o_post_message(c, msg[7]);
- }
-
- if (msg[4] >> 24) // ReqStatus != SUCCESS
- i2o_report_status(KERN_INFO,"i2o_config", msg);
-
- if(m->function == I2O_CMD_UTIL_EVT_REGISTER)
- {
- struct i2o_cfg_info *inf;
-
- for(inf = open_files; inf; inf = inf->next)
- if(inf->q_id == msg[3])
- break;
-
- //
- // If this is the case, it means that we're getting
- // events for a file descriptor that's been close()'d
- // w/o the user unregistering for events first.
- // The code currently assumes that the user will
- // take care of unregistering for events before closing
- // a file.
- //
- // TODO:
- // Should we track event registartion and deregister
- // for events when a file is close()'d so this doesn't
- // happen? That would get rid of the search through
- // the linked list since file->private_data could point
- // directly to the i2o_config_info data structure...but
- // it would mean having all sorts of tables to track
- // what each file is registered for...I think the
- // current method is simpler. - DS
- //
- if(!inf)
- return;
-
- inf->event_q[inf->q_in].id.iop = c->unit;
- inf->event_q[inf->q_in].id.tid = m->target_tid;
- inf->event_q[inf->q_in].id.evt_mask = msg[4];
-
- //
- // Data size = msg size - reply header
- //
- inf->event_q[inf->q_in].data_size = (m->size - 5) * 4;
- if(inf->event_q[inf->q_in].data_size)
- memcpy(inf->event_q[inf->q_in].evt_data,
- (unsigned char *)(msg + 5),
- inf->event_q[inf->q_in].data_size);
-
- spin_lock(&i2o_config_lock);
- MODINC(inf->q_in, I2O_EVT_Q_LEN);
- if(inf->q_len == I2O_EVT_Q_LEN)
- {
- MODINC(inf->q_out, I2O_EVT_Q_LEN);
- inf->q_lost++;
- }
- else
- {
- // Keep I2OEVTGET on another CPU from touching this
- inf->q_len++;
- }
- spin_unlock(&i2o_config_lock);
-
-
-// printk(KERN_INFO "File %p w/id %d has %d events\n",
-// inf->fp, inf->q_id, inf->q_len);
-
- kill_fasync(&inf->fasync, SIGIO, POLL_IN);
- }
-
- return;
-}
-
-/*
- * Each of these describes an i2o message handler. They are
- * multiplexed by the i2o_core code
- */
-
-struct i2o_handler cfg_handler=
-{
- i2o_cfg_reply,
- NULL,
- NULL,
- NULL,
- "Configuration",
- 0,
- 0xffffffff // All classes
-};
-
-static ssize_t cfg_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
-{
- printk(KERN_INFO "i2o_config write not yet supported\n");
-
- return 0;
-}
-
-
-static ssize_t cfg_read(struct file *file, char __user *buf, size_t count, loff_t *ptr)
-{
- return 0;
-}
-
-/*
- * IOCTL Handler
- */
-static int cfg_ioctl(struct inode *inode, struct file *fp, unsigned int cmd,
- unsigned long arg)
-{
- int ret;
-
- switch(cmd)
- {
- case I2OGETIOPS:
- ret = ioctl_getiops(arg);
- break;
-
- case I2OHRTGET:
- ret = ioctl_gethrt(arg);
- break;
-
- case I2OLCTGET:
- ret = ioctl_getlct(arg);
- break;
-
- case I2OPARMSET:
- ret = ioctl_parms(arg, I2OPARMSET);
- break;
-
- case I2OPARMGET:
- ret = ioctl_parms(arg, I2OPARMGET);
- break;
-
- case I2OSWDL:
- ret = ioctl_swdl(arg);
- break;
-
- case I2OSWUL:
- ret = ioctl_swul(arg);
- break;
-
- case I2OSWDEL:
- ret = ioctl_swdel(arg);
- break;
-
- case I2OVALIDATE:
- ret = ioctl_validate(arg);
- break;
-
- case I2OHTML:
- ret = ioctl_html(arg);
- break;
-
- case I2OEVTREG:
- ret = ioctl_evt_reg(arg, fp);
- break;
-
- case I2OEVTGET:
- ret = ioctl_evt_get(arg, fp);
- break;
-
- case I2OPASSTHRU:
- ret = ioctl_passthru(arg);
- break;
-
- default:
- ret = -EINVAL;
- }
-
- return ret;
-}
-
-int ioctl_getiops(unsigned long arg)
-{
- u8 __user *user_iop_table = (void __user *)arg;
- struct i2o_controller *c = NULL;
- int i;
- u8 foo[MAX_I2O_CONTROLLERS];
-
- if(!access_ok(VERIFY_WRITE, user_iop_table, MAX_I2O_CONTROLLERS))
- return -EFAULT;
-
- for(i = 0; i < MAX_I2O_CONTROLLERS; i++)
- {
- c = i2o_find_controller(i);
- if(c)
- {
- foo[i] = 1;
- if(pci_set_dma_mask(c->pdev, 0xffffffff))
- {
- printk(KERN_WARNING "i2o_config : No suitable DMA available on controller %d\n", i);
- i2o_unlock_controller(c);
- continue;
- }
-
- i2o_unlock_controller(c);
- }
- else
- {
- foo[i] = 0;
- }
- }
-
- __copy_to_user(user_iop_table, foo, MAX_I2O_CONTROLLERS);
- return 0;
-}
-
-int ioctl_gethrt(unsigned long arg)
-{
- struct i2o_controller *c;
- struct i2o_cmd_hrtlct __user *cmd = (void __user *)arg;
- struct i2o_cmd_hrtlct kcmd;
- i2o_hrt *hrt;
- int len;
- u32 reslen;
- int ret = 0;
-
- if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
- return -EFAULT;
-
- if(get_user(reslen, kcmd.reslen) < 0)
- return -EFAULT;
-
- if(kcmd.resbuf == NULL)
- return -EFAULT;
-
- c = i2o_find_controller(kcmd.iop);
- if(!c)
- return -ENXIO;
-
- hrt = (i2o_hrt *)c->hrt;
-
- i2o_unlock_controller(c);
-
- len = 8 + ((hrt->entry_len * hrt->num_entries) << 2);
-
- /* We did a get user...so assuming mem is ok...is this bad? */
- put_user(len, kcmd.reslen);
- if(len > reslen)
- ret = -ENOBUFS;
- if(copy_to_user(kcmd.resbuf, (void*)hrt, len))
- ret = -EFAULT;
-
- return ret;
-}
-
-int ioctl_getlct(unsigned long arg)
-{
- struct i2o_controller *c;
- struct i2o_cmd_hrtlct __user *cmd = (void __user *)arg;
- struct i2o_cmd_hrtlct kcmd;
- i2o_lct *lct;
- int len;
- int ret = 0;
- u32 reslen;
-
- if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_hrtlct)))
- return -EFAULT;
-
- if(get_user(reslen, kcmd.reslen) < 0)
- return -EFAULT;
-
- if(kcmd.resbuf == NULL)
- return -EFAULT;
-
- c = i2o_find_controller(kcmd.iop);
- if(!c)
- return -ENXIO;
-
- lct = (i2o_lct *)c->lct;
- i2o_unlock_controller(c);
-
- len = (unsigned int)lct->table_size << 2;
- put_user(len, kcmd.reslen);
- if(len > reslen)
- ret = -ENOBUFS;
- else if(copy_to_user(kcmd.resbuf, (void*)lct, len))
- ret = -EFAULT;
-
- return ret;
-}
-
-static int ioctl_parms(unsigned long arg, unsigned int type)
-{
- int ret = 0;
- struct i2o_controller *c;
- struct i2o_cmd_psetget __user *cmd = (void __user *)arg;
- struct i2o_cmd_psetget kcmd;
- u32 reslen;
- u8 *ops;
- u8 *res;
- int len;
-
- u32 i2o_cmd = (type == I2OPARMGET ?
- I2O_CMD_UTIL_PARAMS_GET :
- I2O_CMD_UTIL_PARAMS_SET);
-
- if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_cmd_psetget)))
- return -EFAULT;
-
- if(get_user(reslen, kcmd.reslen))
- return -EFAULT;
-
- c = i2o_find_controller(kcmd.iop);
- if(!c)
- return -ENXIO;
-
- ops = (u8*)kmalloc(kcmd.oplen, GFP_KERNEL);
- if(!ops)
- {
- i2o_unlock_controller(c);
- return -ENOMEM;
- }
-
- if(copy_from_user(ops, kcmd.opbuf, kcmd.oplen))
- {
- i2o_unlock_controller(c);
- kfree(ops);
- return -EFAULT;
- }
-
- /*
- * It's possible to have a _very_ large table
- * and that the user asks for all of it at once...
- */
- res = (u8*)kmalloc(65536, GFP_KERNEL);
- if(!res)
- {
- i2o_unlock_controller(c);
- kfree(ops);
- return -ENOMEM;
- }
-
- len = i2o_issue_params(i2o_cmd, c, kcmd.tid,
- ops, kcmd.oplen, res, 65536);
- i2o_unlock_controller(c);
- kfree(ops);
-
- if (len < 0) {
- kfree(res);
- return -EAGAIN;
- }
-
- put_user(len, kcmd.reslen);
- if(len > reslen)
- ret = -ENOBUFS;
- else if(copy_to_user(kcmd.resbuf, res, len))
- ret = -EFAULT;
-
- kfree(res);
-
- return ret;
-}
-
-int ioctl_html(unsigned long arg)
-{
- struct i2o_html __user *cmd = (void __user *)arg;
- struct i2o_html kcmd;
- struct i2o_controller *c;
- u8 *res = NULL;
- void *query = NULL;
- dma_addr_t query_phys, res_phys;
- int ret = 0;
- int token;
- u32 len;
- u32 reslen;
- u32 msg[MSG_FRAME_SIZE];
-
- if(copy_from_user(&kcmd, cmd, sizeof(struct i2o_html)))
- {
- printk(KERN_INFO "i2o_config: can't copy html cmd\n");
- return -EFAULT;
- }
-
- if(get_user(reslen, kcmd.reslen) < 0)
- {
- printk(KERN_INFO "i2o_config: can't copy html reslen\n");
- return -EFAULT;
- }
-
- if(!kcmd.resbuf)
- {
- printk(KERN_INFO "i2o_config: NULL html buffer\n");
- return -EFAULT;
- }
-
- c = i2o_find_controller(kcmd.iop);
- if(!c)
- return -ENXIO;
-
- if(kcmd.qlen) /* Check for post data */
- {
- query = pci_alloc_consistent(c->pdev, kcmd.qlen, &query_phys);
- if(!query)
- {
- i2o_unlock_controller(c);
- return -ENOMEM;
- }
- if(copy_from_user(query, kcmd.qbuf, kcmd.qlen))
- {
- i2o_unlock_controller(c);
- printk(KERN_INFO "i2o_config: could not get query\n");
- pci_free_consistent(c->pdev, kcmd.qlen, query, query_phys);
- return -EFAULT;
- }
- }
-
- res = pci_alloc_consistent(c->pdev, 65536, &res_phys);
- if(!res)
- {
- i2o_unlock_controller(c);
- pci_free_consistent(c->pdev, kcmd.qlen, query, query_phys);
- return -ENOMEM;
- }
-
- msg[1] = (I2O_CMD_UTIL_CONFIG_DIALOG << 24)|HOST_TID<<12|kcmd.tid;
- msg[2] = i2o_cfg_context;
- msg[3] = 0;
- msg[4] = kcmd.page;
- msg[5] = 0xD0000000|65536;
- msg[6] = res_phys;
- if(!kcmd.qlen) /* Check for post data */
- msg[0] = SEVEN_WORD_MSG_SIZE|SGL_OFFSET_5;
- else
- {
- msg[0] = NINE_WORD_MSG_SIZE|SGL_OFFSET_5;
- msg[5] = 0x50000000|65536;
- msg[7] = 0xD4000000|(kcmd.qlen);
- msg[8] = query_phys;
- }
- /*
- Wait for a considerable time till the Controller
- does its job before timing out. The controller might
- take more time to process this request if there are
- many devices connected to it.
- */
- token = i2o_post_wait_mem(c, msg, 9*4, 400, query, res, query_phys, res_phys, kcmd.qlen, 65536);
- if(token < 0)
- {
- printk(KERN_DEBUG "token = %#10x\n", token);
- i2o_unlock_controller(c);
-
- if(token != -ETIMEDOUT)
- {
- pci_free_consistent(c->pdev, 65536, res, res_phys);
- if(kcmd.qlen)
- pci_free_consistent(c->pdev, kcmd.qlen, query, query_phys);
- }
- return token;
- }
- i2o_unlock_controller(c);
-
- len = strnlen(res, 65536);
- put_user(len, kcmd.reslen);
- if(len > reslen)
- ret = -ENOMEM;
- if(copy_to_user(kcmd.resbuf, res, len))
- ret = -EFAULT;
-
- pci_free_consistent(c->pdev, 65536, res, res_phys);
- if(kcmd.qlen)
- pci_free_consistent(c->pdev, kcmd.qlen, query, query_phys);
-
- return ret;
-}
-
-int ioctl_swdl(unsigned long arg)
-{
- struct i2o_sw_xfer kxfer;
- struct i2o_sw_xfer __user *pxfer = (void __user *)arg;
- unsigned char maxfrag = 0, curfrag = 1;
- unsigned char *buffer;
- u32 msg[9];
- unsigned int status = 0, swlen = 0, fragsize = 8192;
- struct i2o_controller *c;
- dma_addr_t buffer_phys;
-
- if(copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
- return -EFAULT;
-
- if(get_user(swlen, kxfer.swlen) < 0)
- return -EFAULT;
-
- if(get_user(maxfrag, kxfer.maxfrag) < 0)
- return -EFAULT;
-
- if(get_user(curfrag, kxfer.curfrag) < 0)
- return -EFAULT;
-
- if(curfrag==maxfrag) fragsize = swlen-(maxfrag-1)*8192;
-
- if(!kxfer.buf || !access_ok(VERIFY_READ, kxfer.buf, fragsize))
- return -EFAULT;
-
- c = i2o_find_controller(kxfer.iop);
- if(!c)
- return -ENXIO;
-
- buffer=pci_alloc_consistent(c->pdev, fragsize, &buffer_phys);
- if (buffer==NULL)
- {
- i2o_unlock_controller(c);
- return -ENOMEM;
- }
- __copy_from_user(buffer, kxfer.buf, fragsize);
-
- msg[0]= NINE_WORD_MSG_SIZE | SGL_OFFSET_7;
- msg[1]= I2O_CMD_SW_DOWNLOAD<<24 | HOST_TID<<12 | ADAPTER_TID;
- msg[2]= (u32)cfg_handler.context;
- msg[3]= 0;
- msg[4]= (((u32)kxfer.flags)<<24) | (((u32)kxfer.sw_type)<<16) |
- (((u32)maxfrag)<<8) | (((u32)curfrag));
- msg[5]= swlen;
- msg[6]= kxfer.sw_id;
- msg[7]= (0xD0000000 | fragsize);
- msg[8]= buffer_phys;
-
-// printk("i2o_config: swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
- status = i2o_post_wait_mem(c, msg, sizeof(msg), 60, buffer, NULL, buffer_phys, 0, fragsize, 0);
-
- i2o_unlock_controller(c);
- if(status != -ETIMEDOUT)
- pci_free_consistent(c->pdev, fragsize, buffer, buffer_phys);
-
- if (status != I2O_POST_WAIT_OK)
- {
- // it fails if you try and send frags out of order
- // and for some yet unknown reasons too
- printk(KERN_INFO "i2o_config: swdl failed, DetailedStatus = %d\n", status);
- return status;
- }
-
- return 0;
-}
-
-int ioctl_swul(unsigned long arg)
-{
- struct i2o_sw_xfer kxfer;
- struct i2o_sw_xfer __user *pxfer = (void __user *)arg;
- unsigned char maxfrag = 0, curfrag = 1;
- unsigned char *buffer;
- u32 msg[9];
- unsigned int status = 0, swlen = 0, fragsize = 8192;
- struct i2o_controller *c;
- dma_addr_t buffer_phys;
-
- if(copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
- return -EFAULT;
-
- if(get_user(swlen, kxfer.swlen) < 0)
- return -EFAULT;
-
- if(get_user(maxfrag, kxfer.maxfrag) < 0)
- return -EFAULT;
-
- if(get_user(curfrag, kxfer.curfrag) < 0)
- return -EFAULT;
-
- if(curfrag==maxfrag) fragsize = swlen-(maxfrag-1)*8192;
-
- if(!kxfer.buf || !access_ok(VERIFY_WRITE, kxfer.buf, fragsize))
- return -EFAULT;
-
- c = i2o_find_controller(kxfer.iop);
- if(!c)
- return -ENXIO;
-
- buffer=pci_alloc_consistent(c->pdev, fragsize, &buffer_phys);
- if (buffer==NULL)
- {
- i2o_unlock_controller(c);
- return -ENOMEM;
- }
-
- msg[0]= NINE_WORD_MSG_SIZE | SGL_OFFSET_7;
- msg[1]= I2O_CMD_SW_UPLOAD<<24 | HOST_TID<<12 | ADAPTER_TID;
- msg[2]= (u32)cfg_handler.context;
- msg[3]= 0;
- msg[4]= (u32)kxfer.flags<<24|(u32)kxfer.sw_type<<16|(u32)maxfrag<<8|(u32)curfrag;
- msg[5]= swlen;
- msg[6]= kxfer.sw_id;
- msg[7]= (0xD0000000 | fragsize);
- msg[8]= buffer_phys;
-
-// printk("i2o_config: swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
- status = i2o_post_wait_mem(c, msg, sizeof(msg), 60, buffer, NULL, buffer_phys, 0, fragsize, 0);
- i2o_unlock_controller(c);
-
- if (status != I2O_POST_WAIT_OK)
- {
- if(status != -ETIMEDOUT)
- pci_free_consistent(c->pdev, fragsize, buffer, buffer_phys);
- printk(KERN_INFO "i2o_config: swul failed, DetailedStatus = %d\n", status);
- return status;
- }
-
- __copy_to_user(kxfer.buf, buffer, fragsize);
- pci_free_consistent(c->pdev, fragsize, buffer, buffer_phys);
-
- return 0;
-}
-
-int ioctl_swdel(unsigned long arg)
-{
- struct i2o_controller *c;
- struct i2o_sw_xfer kxfer;
- struct i2o_sw_xfer __user *pxfer = (void __user *)arg;
- u32 msg[7];
- unsigned int swlen;
- int token;
-
- if (copy_from_user(&kxfer, pxfer, sizeof(struct i2o_sw_xfer)))
- return -EFAULT;
-
- if (get_user(swlen, kxfer.swlen) < 0)
- return -EFAULT;
-
- c = i2o_find_controller(kxfer.iop);
- if (!c)
- return -ENXIO;
-
- msg[0] = SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0;
- msg[1] = I2O_CMD_SW_REMOVE<<24 | HOST_TID<<12 | ADAPTER_TID;
- msg[2] = (u32)i2o_cfg_context;
- msg[3] = 0;
- msg[4] = (u32)kxfer.flags<<24 | (u32)kxfer.sw_type<<16;
- msg[5] = swlen;
- msg[6] = kxfer.sw_id;
-
- token = i2o_post_wait(c, msg, sizeof(msg), 10);
- i2o_unlock_controller(c);
-
- if (token != I2O_POST_WAIT_OK)
- {
- printk(KERN_INFO "i2o_config: swdel failed, DetailedStatus = %d\n", token);
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-int ioctl_validate(unsigned long arg)
-{
- int token;
- int iop = (int)arg;
- u32 msg[4];
- struct i2o_controller *c;
-
- c=i2o_find_controller(iop);
- if (!c)
- return -ENXIO;
-
- msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_CONFIG_VALIDATE<<24 | HOST_TID<<12 | iop;
- msg[2] = (u32)i2o_cfg_context;
- msg[3] = 0;
-
- token = i2o_post_wait(c, msg, sizeof(msg), 10);
- i2o_unlock_controller(c);
-
- if (token != I2O_POST_WAIT_OK)
- {
- printk(KERN_INFO "Can't validate configuration, ErrorStatus = %d\n",
- token);
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-static int ioctl_evt_reg(unsigned long arg, struct file *fp)
-{
- u32 msg[5];
- struct i2o_evt_id __user *pdesc = (void __user *)arg;
- struct i2o_evt_id kdesc;
- struct i2o_controller *iop;
- struct i2o_device *d;
-
- if (copy_from_user(&kdesc, pdesc, sizeof(struct i2o_evt_id)))
- return -EFAULT;
-
- /* IOP exists? */
- iop = i2o_find_controller(kdesc.iop);
- if(!iop)
- return -ENXIO;
- i2o_unlock_controller(iop);
-
- /* Device exists? */
- for(d = iop->devices; d; d = d->next)
- if(d->lct_data.tid == kdesc.tid)
- break;
-
- if(!d)
- return -ENODEV;
-
- msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_UTIL_EVT_REGISTER<<24 | HOST_TID<<12 | kdesc.tid;
- msg[2] = (u32)i2o_cfg_context;
- msg[3] = (u32)fp->private_data;
- msg[4] = kdesc.evt_mask;
-
- i2o_post_this(iop, msg, 20);
-
- return 0;
-}
-
-static int ioctl_evt_get(unsigned long arg, struct file *fp)
-{
- u32 id = (u32)fp->private_data;
- struct i2o_cfg_info *p = NULL;
- struct i2o_evt_get __user *uget = (void __user *)arg;
- struct i2o_evt_get kget;
- unsigned long flags;
-
- for(p = open_files; p; p = p->next)
- if(p->q_id == id)
- break;
-
- if(!p->q_len)
- {
- return -ENOENT;
- return 0;
- }
-
- memcpy(&kget.info, &p->event_q[p->q_out], sizeof(struct i2o_evt_info));
- MODINC(p->q_out, I2O_EVT_Q_LEN);
- spin_lock_irqsave(&i2o_config_lock, flags);
- p->q_len--;
- kget.pending = p->q_len;
- kget.lost = p->q_lost;
- spin_unlock_irqrestore(&i2o_config_lock, flags);
-
- if(copy_to_user(uget, &kget, sizeof(struct i2o_evt_get)))
- return -EFAULT;
- return 0;
-}
-
-static int ioctl_passthru(unsigned long arg)
-{
- struct i2o_cmd_passthru __user *cmd = (void __user *) arg;
- struct i2o_controller *c;
- u32 msg[MSG_FRAME_SIZE];
- u32 __user *user_msg;
- u32 *reply = NULL;
- u32 __user *user_reply = NULL;
- u32 size = 0;
- u32 reply_size = 0;
- u32 rcode = 0;
- void *sg_list[SG_TABLESIZE];
- u32 sg_offset = 0;
- u32 sg_count = 0;
- int sg_index = 0;
- u32 i = 0;
- void *p = NULL;
- unsigned int iop;
-
- if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
- return -EFAULT;
-
- c = i2o_find_controller(iop);
- if (!c)
- return -ENXIO;
-
- memset(&msg, 0, MSG_FRAME_SIZE*4);
- if(get_user(size, &user_msg[0]))
- return -EFAULT;
- size = size>>16;
-
- user_reply = &user_msg[size];
- if(size > MSG_FRAME_SIZE)
- return -EFAULT;
- size *= 4; // Convert to bytes
-
- /* Copy in the user's I2O command */
- if(copy_from_user(msg, user_msg, size))
- return -EFAULT;
- if(get_user(reply_size, &user_reply[0]) < 0)
- return -EFAULT;
-
- reply_size = reply_size>>16;
- reply = kmalloc(REPLY_FRAME_SIZE*4, GFP_KERNEL);
- if(!reply) {
- printk(KERN_WARNING"%s: Could not allocate reply buffer\n",c->name);
- return -ENOMEM;
- }
- memset(reply, 0, REPLY_FRAME_SIZE*4);
- sg_offset = (msg[0]>>4)&0x0f;
- msg[2] = (u32)i2o_cfg_context;
- msg[3] = (u32)reply;
-
- memset(sg_list,0, sizeof(sg_list[0])*SG_TABLESIZE);
- if(sg_offset) {
- struct sg_simple_element *sg;
-
- if(sg_offset * 4 >= size) {
- rcode = -EFAULT;
- goto cleanup;
- }
- // TODO 64bit fix
- sg = (struct sg_simple_element*) (msg+sg_offset);
- sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
- if (sg_count > SG_TABLESIZE) {
- printk(KERN_DEBUG"%s:IOCTL SG List too large (%u)\n", c->name,sg_count);
- kfree (reply);
- return -EINVAL;
- }
-
- for(i = 0; i < sg_count; i++) {
- int sg_size;
-
- if (!(sg[i].flag_count & 0x10000000 /*I2O_SGL_FLAGS_SIMPLE_ADDRESS_ELEMENT*/)) {
- printk(KERN_DEBUG"%s:Bad SG element %d - not simple (%x)\n",c->name,i, sg[i].flag_count);
- rcode = -EINVAL;
- goto cleanup;
- }
- sg_size = sg[i].flag_count & 0xffffff;
- /* Allocate memory for the transfer */
- p = kmalloc(sg_size, GFP_KERNEL);
- if (!p) {
- printk(KERN_DEBUG"%s: Could not allocate SG buffer - size = %d buffer number %d of %d\n", c->name,sg_size,i,sg_count);
- rcode = -ENOMEM;
- goto cleanup;
- }
- sg_list[sg_index++] = p; // sglist indexed with input frame, not our internal frame.
- /* Copy in the user's SG buffer if necessary */
- if(sg[i].flag_count & 0x04000000 /*I2O_SGL_FLAGS_DIR*/) {
- // TODO 64bit fix
- if (copy_from_user(p,(void __user *)sg[i].addr_bus, sg_size)) {
- printk(KERN_DEBUG"%s: Could not copy SG buf %d FROM user\n",c->name,i);
- rcode = -EFAULT;
- goto cleanup;
- }
- }
- //TODO 64bit fix
- sg[i].addr_bus = (u32)virt_to_bus(p);
- }
- }
-
- rcode = i2o_post_wait(c, msg, size, 60);
- if(rcode)
- goto cleanup;
-
- if(sg_offset) {
- /* Copy back the Scatter Gather buffers back to user space */
- u32 j;
- // TODO 64bit fix
- struct sg_simple_element* sg;
- int sg_size;
-
- // re-acquire the original message to handle correctly the sg copy operation
- memset(&msg, 0, MSG_FRAME_SIZE*4);
- // get user msg size in u32s
- if (get_user(size, &user_msg[0])) {
- rcode = -EFAULT;
- goto cleanup;
- }
- size = size>>16;
- size *= 4;
- /* Copy in the user's I2O command */
- if (copy_from_user (msg, user_msg, size)) {
- rcode = -EFAULT;
- goto cleanup;
- }
- sg_count = (size - sg_offset*4) / sizeof(struct sg_simple_element);
-
- // TODO 64bit fix
- sg = (struct sg_simple_element*)(msg + sg_offset);
- for (j = 0; j < sg_count; j++) {
- /* Copy out the SG list to user's buffer if necessary */
- if (!(sg[j].flag_count & 0x4000000 /*I2O_SGL_FLAGS_DIR*/)) {
- sg_size = sg[j].flag_count & 0xffffff;
- // TODO 64bit fix
- if (copy_to_user((void __user *)sg[j].addr_bus,sg_list[j], sg_size)) {
- printk(KERN_WARNING"%s: Could not copy %p TO user %x\n",c->name, sg_list[j], sg[j].addr_bus);
- rcode = -EFAULT;
- goto cleanup;
- }
- }
- }
- }
-
- /* Copy back the reply to user space */
- if (reply_size) {
- // we wrote our own values for context - now restore the user supplied ones
- if(copy_from_user(reply+2, user_msg+2, sizeof(u32)*2)) {
- printk(KERN_WARNING"%s: Could not copy message context FROM user\n",c->name);
- rcode = -EFAULT;
- }
- if(copy_to_user(user_reply, reply, reply_size)) {
- printk(KERN_WARNING"%s: Could not copy reply TO user\n",c->name);
- rcode = -EFAULT;
- }
- }
-
-cleanup:
- kfree(reply);
- i2o_unlock_controller(c);
- return rcode;
-}
-
-static int cfg_open(struct inode *inode, struct file *file)
-{
- struct i2o_cfg_info *tmp =
- (struct i2o_cfg_info *)kmalloc(sizeof(struct i2o_cfg_info), GFP_KERNEL);
- unsigned long flags;
-
- if(!tmp)
- return -ENOMEM;
-
- file->private_data = (void*)(i2o_cfg_info_id++);
- tmp->fp = file;
- tmp->fasync = NULL;
- tmp->q_id = (u32)file->private_data;
- tmp->q_len = 0;
- tmp->q_in = 0;
- tmp->q_out = 0;
- tmp->q_lost = 0;
- tmp->next = open_files;
-
- spin_lock_irqsave(&i2o_config_lock, flags);
- open_files = tmp;
- spin_unlock_irqrestore(&i2o_config_lock, flags);
-
- return 0;
-}
-
-static int cfg_release(struct inode *inode, struct file *file)
-{
- u32 id = (u32)file->private_data;
- struct i2o_cfg_info *p1, *p2;
- unsigned long flags;
-
- lock_kernel();
- p1 = p2 = NULL;
-
- spin_lock_irqsave(&i2o_config_lock, flags);
- for(p1 = open_files; p1; )
- {
- if(p1->q_id == id)
- {
-
- if(p1->fasync)
- cfg_fasync(-1, file, 0);
- if(p2)
- p2->next = p1->next;
- else
- open_files = p1->next;
-
- kfree(p1);
- break;
- }
- p2 = p1;
- p1 = p1->next;
- }
- spin_unlock_irqrestore(&i2o_config_lock, flags);
- unlock_kernel();
-
- return 0;
-}
-
-static int cfg_fasync(int fd, struct file *fp, int on)
-{
- u32 id = (u32)fp->private_data;
- struct i2o_cfg_info *p;
-
- for(p = open_files; p; p = p->next)
- if(p->q_id == id)
- break;
-
- if(!p)
- return -EBADF;
-
- return fasync_helper(fd, fp, on, &p->fasync);
-}
-
-static struct file_operations config_fops =
-{
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .read = cfg_read,
- .write = cfg_write,
- .ioctl = cfg_ioctl,
- .open = cfg_open,
- .release = cfg_release,
- .fasync = cfg_fasync,
-};
-
-static struct miscdevice i2o_miscdev = {
- I2O_MINOR,
- "i2octl",
- &config_fops
-};
-
-static int __init i2o_config_init(void)
-{
- printk(KERN_INFO "I2O configuration manager v 0.04.\n");
- printk(KERN_INFO " (C) Copyright 1999 Red Hat Software\n");
-
- if((page_buf = kmalloc(4096, GFP_KERNEL))==NULL)
- {
- printk(KERN_ERR "i2o_config: no memory for page buffer.\n");
- return -ENOBUFS;
- }
- if(misc_register(&i2o_miscdev) < 0)
- {
- printk(KERN_ERR "i2o_config: can't register device.\n");
- kfree(page_buf);
- return -EBUSY;
- }
- /*
- * Install our handler
- */
- if(i2o_install_handler(&cfg_handler)<0)
- {
- kfree(page_buf);
- printk(KERN_ERR "i2o_config: handler register failed.\n");
- misc_deregister(&i2o_miscdev);
- return -EBUSY;
- }
- /*
- * The low 16bits of the transaction context must match this
- * for everything we post. Otherwise someone else gets our mail
- */
- i2o_cfg_context = cfg_handler.context;
- return 0;
-}
-
-static void i2o_config_exit(void)
-{
- misc_deregister(&i2o_miscdev);
-
- if(page_buf)
- kfree(page_buf);
- if(i2o_cfg_context != -1)
- i2o_remove_handler(&cfg_handler);
-}
-
-MODULE_AUTHOR("Red Hat Software");
-MODULE_DESCRIPTION("I2O Configuration");
-MODULE_LICENSE("GPL");
-
-module_init(i2o_config_init);
-module_exit(i2o_config_exit);
diff -L drivers/message/i2o/i2o_core.c -puN drivers/message/i2o/i2o_core.c~i2o-build_99 /dev/null
--- 25/drivers/message/i2o/i2o_core.c
+++ /dev/null Thu Apr 11 07:25:15 2002
@@ -1,3978 +0,0 @@
-/*
- * Core I2O structure management
- *
- * (C) Copyright 1999-2002 Red Hat Software
- *
- * Written by Alan Cox, Building Number Three Ltd
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * A lot of the I2O message side code from this is taken from the
- * Red Creek RCPCI45 adapter driver by Red Creek Communications
- *
- * Fixes/additions:
- * Philipp Rumpf
- * Juha Siev�nen <Juha.Sievanen@cs.Helsinki.FI>
- * Auvo H�kkinen <Auvo.Hakkinen@cs.Helsinki.FI>
- * Deepak Saxena <deepak@plexity.net>
- * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
- * Alan Cox <alan@redhat.com>:
- * Ported to Linux 2.5.
- * Markus Lidel <Markus.Lidel@shadowconnect.com>:
- * Minor fixes for 2.6.
- *
- */
-
-#include <linux/config.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-
-#include <linux/i2o.h>
-
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/smp_lock.h>
-
-#include <linux/bitops.h>
-#include <linux/wait.h>
-#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <asm/semaphore.h>
-#include <linux/completion.h>
-#include <linux/workqueue.h>
-
-#include <asm/io.h>
-#include <linux/reboot.h>
-#ifdef CONFIG_MTRR
-#include <asm/mtrr.h>
-#endif // CONFIG_MTRR
-
-#include "i2o_lan.h"
-
-//#define DRIVERDEBUG
-
-#ifdef DRIVERDEBUG
-#define dprintk(s, args...) printk(s, ## args)
-#else
-#define dprintk(s, args...)
-#endif
-
-/* OSM table */
-static struct i2o_handler *i2o_handlers[MAX_I2O_MODULES];
-
-/* Controller list */
-static struct i2o_controller *i2o_controllers[MAX_I2O_CONTROLLERS];
-struct i2o_controller *i2o_controller_chain;
-int i2o_num_controllers;
-
-/* Initiator Context for Core message */
-static int core_context;
-
-/* Initialization && shutdown functions */
-void i2o_sys_init(void);
-static void i2o_sys_shutdown(void);
-static int i2o_reset_controller(struct i2o_controller *);
-static int i2o_reboot_event(struct notifier_block *, unsigned long , void *);
-static int i2o_online_controller(struct i2o_controller *);
-static int i2o_init_outbound_q(struct i2o_controller *);
-static int i2o_post_outbound_messages(struct i2o_controller *);
-
-/* Reply handler */
-static void i2o_core_reply(struct i2o_handler *, struct i2o_controller *,
- struct i2o_message *);
-
-/* Various helper functions */
-static int i2o_lct_get(struct i2o_controller *);
-static int i2o_lct_notify(struct i2o_controller *);
-static int i2o_hrt_get(struct i2o_controller *);
-
-static int i2o_build_sys_table(void);
-static int i2o_systab_send(struct i2o_controller *c);
-
-/* I2O core event handler */
-static int i2o_core_evt(void *);
-static int evt_pid;
-static int evt_running;
-
-/* Dynamic LCT update handler */
-static int i2o_dyn_lct(void *);
-
-void i2o_report_controller_unit(struct i2o_controller *, struct i2o_device *);
-
-static void i2o_pci_dispose(struct i2o_controller *c);
-
-/*
- * I2O System Table. Contains information about
- * all the IOPs in the system. Used to inform IOPs
- * about each other's existence.
- *
- * sys_tbl_ver is the CurrentChangeIndicator that is
- * used by IOPs to track changes.
- */
-static struct i2o_sys_tbl *sys_tbl;
-static int sys_tbl_ind;
-static int sys_tbl_len;
-
-/*
- * This spin lock is used to keep a device from being
- * added and deleted concurrently across CPUs or interrupts.
- * This can occur when a user creates a device and immediatelly
- * deletes it before the new_dev_notify() handler is called.
- */
-static spinlock_t i2o_dev_lock = SPIN_LOCK_UNLOCKED;
-
-/*
- * Structures and definitions for synchronous message posting.
- * See i2o_post_wait() for description.
- */
-struct i2o_post_wait_data
-{
- int *status; /* Pointer to status block on caller stack */
- int *complete; /* Pointer to completion flag on caller stack */
- u32 id; /* Unique identifier */
- wait_queue_head_t *wq; /* Wake up for caller (NULL for dead) */
- struct i2o_post_wait_data *next; /* Chain */
- void *mem[2]; /* Memory blocks to recover on failure path */
- dma_addr_t phys[2]; /* Physical address of blocks to recover */
- u32 size[2]; /* Size of blocks to recover */
-};
-
-static struct i2o_post_wait_data *post_wait_queue;
-static u32 post_wait_id; // Unique ID for each post_wait
-static spinlock_t post_wait_lock = SPIN_LOCK_UNLOCKED;
-static void i2o_post_wait_complete(struct i2o_controller *, u32, int);
-
-/* OSM descriptor handler */
-static struct i2o_handler i2o_core_handler =
-{
- (void *)i2o_core_reply,
- NULL,
- NULL,
- NULL,
- "I2O core layer",
- 0,
- I2O_CLASS_EXECUTIVE
-};
-
-/*
- * Used when queueing a reply to be handled later
- */
-
-struct reply_info
-{
- struct i2o_controller *iop;
- u32 msg[MSG_FRAME_SIZE];
-};
-static struct reply_info evt_reply;
-static struct reply_info events[I2O_EVT_Q_LEN];
-static int evt_in;
-static int evt_out;
-static int evt_q_len;
-#define MODINC(x,y) ((x) = ((x) + 1) % (y))
-
-/*
- * I2O configuration spinlock. This isnt a big deal for contention
- * so we have one only
- */
-
-static DECLARE_MUTEX(i2o_configuration_lock);
-
-/*
- * Event spinlock. Used to keep event queue sane and from
- * handling multiple events simultaneously.
- */
-static spinlock_t i2o_evt_lock = SPIN_LOCK_UNLOCKED;
-
-/*
- * Semaphore used to synchronize event handling thread with
- * interrupt handler.
- */
-
-static DECLARE_MUTEX(evt_sem);
-static DECLARE_COMPLETION(evt_dead);
-static DECLARE_WAIT_QUEUE_HEAD(evt_wait);
-
-static struct notifier_block i2o_reboot_notifier =
-{
- i2o_reboot_event,
- NULL,
- 0
-};
-
-/*
- * Config options
- */
-
-static int verbose;
-
-#if BITS_PER_LONG == 64
-/**
- * i2o_context_list_add - append an ptr to the context list and return a
- * matching context id.
- * @ptr: pointer to add to the context list
- * @c: controller to which the context list belong
- * returns context id, which could be used in the transaction context
- * field.
- *
- * Because the context field in I2O is only 32-bit large, on 64-bit the
- * pointer is to large to fit in the context field. The i2o_context_list
- * functiones map pointers to context fields.
- */
-u32 i2o_context_list_add(void *ptr, struct i2o_controller *c) {
- u32 context = 1;
- struct i2o_context_list_element **entry = &c->context_list;
- struct i2o_context_list_element *element;
- unsigned long flags;
-
- spin_lock_irqsave(&c->context_list_lock, flags);
- while(*entry && ((*entry)->flags & I2O_CONTEXT_LIST_USED)) {
- if((*entry)->context >= context)
- context = (*entry)->context + 1;
- entry = &((*entry)->next);
- }
-
- if(!*entry) {
- if(unlikely(!context)) {
- spin_unlock_irqrestore(&c->context_list_lock, flags);
- printk(KERN_EMERG "i2o_core: context list overflow\n");
- return 0;
- }
-
- element = kmalloc(sizeof(struct i2o_context_list_element), GFP_KERNEL);
- if(!element) {
- printk(KERN_EMERG "i2o_core: could not allocate memory for context list element\n");
- return 0;
- }
- element->context = context;
- element->next = NULL;
- *entry = element;
- } else
- element = *entry;
-
- element->ptr = ptr;
- element->flags = I2O_CONTEXT_LIST_USED;
-
- spin_unlock_irqrestore(&c->context_list_lock, flags);
- dprintk(KERN_DEBUG "i2o_core: add context to list %p -> %d\n", ptr, context);
- return context;
-}
-
-/**
- * i2o_context_list_remove - remove a ptr from the context list and return
- * the matching context id.
- * @ptr: pointer to be removed from the context list
- * @c: controller to which the context list belong
- * returns context id, which could be used in the transaction context
- * field.
- */
-u32 i2o_context_list_remove(void *ptr, struct i2o_controller *c) {
- struct i2o_context_list_element **entry = &c->context_list;
- struct i2o_context_list_element *element;
- u32 context;
- unsigned long flags;
-
- spin_lock_irqsave(&c->context_list_lock, flags);
- while(*entry && ((*entry)->ptr != ptr))
- entry = &((*entry)->next);
-
- if(unlikely(!*entry)) {
- spin_unlock_irqrestore(&c->context_list_lock, flags);
- printk(KERN_WARNING "i2o_core: could not remove nonexistent ptr %p\n", ptr);
- return 0;
- }
-
- element = *entry;
-
- context = element->context;
- element->ptr = NULL;
- element->flags |= I2O_CONTEXT_LIST_DELETED;
-
- spin_unlock_irqrestore(&c->context_list_lock, flags);
- dprintk(KERN_DEBUG "i2o_core: markt as deleted in context list %p -> %d\n", ptr, context);
- return context;
-}
-
-/**
- * i2o_context_list_get - get a ptr from the context list and remove it
- * from the list.
- * @context: context id to which the pointer belong
- * @c: controller to which the context list belong
- * returns pointer to the matching context id
- */
-void *i2o_context_list_get(u32 context, struct i2o_controller *c) {
- struct i2o_context_list_element **entry = &c->context_list;
- struct i2o_context_list_element *element;
- void *ptr;
- int count = 0;
- unsigned long flags;
-
- spin_lock_irqsave(&c->context_list_lock, flags);
- while(*entry && ((*entry)->context != context)) {
- entry = &((*entry)->next);
- count ++;
- }
-
- if(unlikely(!*entry)) {
- spin_unlock_irqrestore(&c->context_list_lock, flags);
- printk(KERN_WARNING "i2o_core: context id %d not found\n", context);
- return NULL;
- }
-
- element = *entry;
- ptr = element->ptr;
- if(count >= I2O_CONTEXT_LIST_MIN_LENGTH) {
- *entry = (*entry)->next;
- kfree(element);
- } else {
- element->ptr = NULL;
- element->flags &= !I2O_CONTEXT_LIST_USED;
- }
-
- spin_unlock_irqrestore(&c->context_list_lock, flags);
- dprintk(KERN_DEBUG "i2o_core: get ptr from context list %d -> %p\n", context, ptr);
- return ptr;
-}
-#endif
-
-/*
- * I2O Core reply handler
- */
-static void i2o_core_reply(struct i2o_handler *h, struct i2o_controller *c,
- struct i2o_message *m)
-{
- u32 *msg=(u32 *)m;
- u32 status;
- u32 context = msg[2];
-
- if (msg[0] & MSG_FAIL) // Fail bit is set
- {
- u32 *preserved_msg = (u32*)(c->msg_virt + msg[7]);
-
- i2o_report_status(KERN_INFO, "i2o_core", msg);
- i2o_dump_message(preserved_msg);
-
- /* If the failed request needs special treatment,
- * it should be done here. */
-
- /* Release the preserved msg by resubmitting it as a NOP */
-
- preserved_msg[0] = cpu_to_le32(THREE_WORD_MSG_SIZE | SGL_OFFSET_0);
- preserved_msg[1] = cpu_to_le32(I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0);
- preserved_msg[2] = 0;
- i2o_post_message(c, msg[7]);
-
- /* If reply to i2o_post_wait failed, return causes a timeout */
-
- return;
- }
-
-#ifdef DRIVERDEBUG
- i2o_report_status(KERN_INFO, "i2o_core", msg);
-#endif
-
- if(msg[2]&0x80000000) // Post wait message
- {
- if (msg[4] >> 24)
- status = (msg[4] & 0xFFFF);
- else
- status = I2O_POST_WAIT_OK;
-
- i2o_post_wait_complete(c, context, status);
- return;
- }
-
- if(m->function == I2O_CMD_UTIL_EVT_REGISTER)
- {
- memcpy(events[evt_in].msg, msg, (msg[0]>>16)<<2);
- events[evt_in].iop = c;
-
- spin_lock(&i2o_evt_lock);
- MODINC(evt_in, I2O_EVT_Q_LEN);
- if(evt_q_len == I2O_EVT_Q_LEN)
- MODINC(evt_out, I2O_EVT_Q_LEN);
- else
- evt_q_len++;
- spin_unlock(&i2o_evt_lock);
-
- up(&evt_sem);
- wake_up_interruptible(&evt_wait);
- return;
- }
-
- if(m->function == I2O_CMD_LCT_NOTIFY)
- {
- up(&c->lct_sem);
- return;
- }
-
- /*
- * If this happens, we want to dump the message to the syslog so
- * it can be sent back to the card manufacturer by the end user
- * to aid in debugging.
- *
- */
- printk(KERN_WARNING "%s: Unsolicited message reply sent to core!"
- "Message dumped to syslog\n",
- c->name);
- i2o_dump_message(msg);
-
- return;
-}
-
-/**
- * i2o_install_handler - install a message handler
- * @h: Handler structure
- *
- * Install an I2O handler - these handle the asynchronous messaging
- * from the card once it has initialised. If the table of handlers is
- * full then -ENOSPC is returned. On a success 0 is returned and the
- * context field is set by the function. The structure is part of the
- * system from this time onwards. It must not be freed until it has
- * been uninstalled
- */
-
-int i2o_install_handler(struct i2o_handler *h)
-{
- int i;
- down(&i2o_configuration_lock);
- for(i=0;i<MAX_I2O_MODULES;i++)
- {
- if(i2o_handlers[i]==NULL)
- {
- h->context = i;
- i2o_handlers[i]=h;
- up(&i2o_configuration_lock);
- return 0;
- }
- }
- up(&i2o_configuration_lock);
- return -ENOSPC;
-}
-
-/**
- * i2o_remove_handler - remove an i2o message handler
- * @h: handler
- *
- * Remove a message handler previously installed with i2o_install_handler.
- * After this function returns the handler object can be freed or re-used
- */
-
-int i2o_remove_handler(struct i2o_handler *h)
-{
- i2o_handlers[h->context]=NULL;
- return 0;
-}
-
-
-/*
- * Each I2O controller has a chain of devices on it.
- * Each device has a pointer to its LCT entry to be used
- * for fun purposes.
- */
-
-/**
- * i2o_install_device - attach a device to a controller
- * @c: controller
- * @d: device
- *
- * Add a new device to an i2o controller. This can be called from
- * non interrupt contexts only. It adds the device and marks it as
- * unclaimed. The device memory becomes part of the kernel and must
- * be uninstalled before being freed or reused. Zero is returned
- * on success.
- */
-
-int i2o_install_device(struct i2o_controller *c, struct i2o_device *d)
-{
- int i;
-
- down(&i2o_configuration_lock);
- d->controller=c;
- d->owner=NULL;
- d->next=c->devices;
- d->prev=NULL;
- if (c->devices != NULL)
- c->devices->prev=d;
- c->devices=d;
- *d->dev_name = 0;
-
- for(i = 0; i < I2O_MAX_MANAGERS; i++)
- d->managers[i] = NULL;
-
- up(&i2o_configuration_lock);
- return 0;
-}
-
-/* we need this version to call out of i2o_delete_controller */
-
-int __i2o_delete_device(struct i2o_device *d)
-{
- struct i2o_device **p;
- int i;
-
- p=&(d->controller->devices);
-
- /*
- * Hey we have a driver!
- * Check to see if the driver wants us to notify it of
- * device deletion. If it doesn't we assume that it
- * is unsafe to delete a device with an owner and
- * fail.
- */
- if(d->owner)
- {
- if(d->owner->dev_del_notify)
- {
- dprintk(KERN_INFO "Device has owner, notifying\n");
- d->owner->dev_del_notify(d->controller, d);
- if(d->owner)
- {
- printk(KERN_WARNING
- "Driver \"%s\" did not release device!\n", d->owner->name);
- return -EBUSY;
- }
- }
- else
- return -EBUSY;
- }
-
- /*
- * Tell any other users who are talking to this device
- * that it's going away. We assume that everything works.
- */
- for(i=0; i < I2O_MAX_MANAGERS; i++)
- {
- if(d->managers[i] && d->managers[i]->dev_del_notify)
- d->managers[i]->dev_del_notify(d->controller, d);
- }
-
- while(*p!=NULL)
- {
- if(*p==d)
- {
- /*
- * Destroy
- */
- *p=d->next;
- kfree(d);
- return 0;
- }
- p=&((*p)->next);
- }
- printk(KERN_ERR "i2o_delete_device: passed invalid device.\n");
- return -EINVAL;
-}
-
-/**
- * i2o_delete_device - remove an i2o device
- * @d: device to remove
- *
- * This function unhooks a device from a controller. The device
- * will not be unhooked if it has an owner who does not wish to free
- * it, or if the owner lacks a dev_del_notify function. In that case
- * -EBUSY is returned. On success 0 is returned. Other errors cause
- * negative errno values to be returned
- */
-
-int i2o_delete_device(struct i2o_device *d)
-{
- int ret;
-
- down(&i2o_configuration_lock);
-
- /*
- * Seek, locate
- */
-
- ret = __i2o_delete_device(d);
-
- up(&i2o_configuration_lock);
-
- return ret;
-}
-
-/**
- * i2o_install_controller - attach a controller
- * @c: controller
- *
- * Add a new controller to the i2o layer. This can be called from
- * non interrupt contexts only. It adds the controller and marks it as
- * unused with no devices. If the tables are full or memory allocations
- * fail then a negative errno code is returned. On success zero is
- * returned and the controller is bound to the system. The structure
- * must not be freed or reused until being uninstalled.
- */
-
-int i2o_install_controller(struct i2o_controller *c)
-{
- int i;
- down(&i2o_configuration_lock);
- for(i=0;i<MAX_I2O_CONTROLLERS;i++)
- {
- if(i2o_controllers[i]==NULL)
- {
- c->dlct = (i2o_lct*)pci_alloc_consistent(c->pdev, 8192, &c->dlct_phys);
- if(c->dlct==NULL)
- {
- up(&i2o_configuration_lock);
- return -ENOMEM;
- }
- i2o_controllers[i]=c;
- c->devices = NULL;
- c->next=i2o_controller_chain;
- i2o_controller_chain=c;
- c->unit = i;
- c->page_frame = NULL;
- c->hrt = NULL;
- c->hrt_len = 0;
- c->lct = NULL;
- c->status_block = NULL;
- sprintf(c->name, "i2o/iop%d", i);
- i2o_num_controllers++;
- init_MUTEX_LOCKED(&c->lct_sem);
- up(&i2o_configuration_lock);
- return 0;
- }
- }
- printk(KERN_ERR "No free i2o controller slots.\n");
- up(&i2o_configuration_lock);
- return -EBUSY;
-}
-
-/**
- * i2o_delete_controller - delete a controller
- * @c: controller
- *
- * Remove an i2o controller from the system. If the controller or its
- * devices are busy then -EBUSY is returned. On a failure a negative
- * errno code is returned. On success zero is returned.
- */
-
-int i2o_delete_controller(struct i2o_controller *c)
-{
- struct i2o_controller **p;
- int users;
- char name[16];
- int stat;
-
- dprintk(KERN_INFO "Deleting controller %s\n", c->name);
-
- /*
- * Clear event registration as this can cause weird behavior
- */
- if(c->status_block->iop_state == ADAPTER_STATE_OPERATIONAL)
- i2o_event_register(c, core_context, 0, 0, 0);
-
- down(&i2o_configuration_lock);
- if((users=atomic_read(&c->users)))
- {
- dprintk(KERN_INFO "I2O: %d users for controller %s\n", users,
- c->name);
- up(&i2o_configuration_lock);
- return -EBUSY;
- }
- while(c->devices)
- {
- if(__i2o_delete_device(c->devices)<0)
- {
- /* Shouldnt happen */
- I2O_IRQ_WRITE32(c, 0xFFFFFFFF);
- c->enabled = 0;
- up(&i2o_configuration_lock);
- return -EBUSY;
- }
- }
-
- /*
- * If this is shutdown time, the thread's already been killed
- */
- if(c->lct_running) {
- stat = kill_proc(c->lct_pid, SIGKILL, 1);
- if(!stat) {
- int count = 10 * 100;
- while(c->lct_running && --count) {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout(1);
- }
-
- if(!count)
- printk(KERN_ERR
- "%s: LCT thread still running!\n",
- c->name);
- }
- }
-
- p=&i2o_controller_chain;
-
- while(*p)
- {
- if(*p==c)
- {
- /* Ask the IOP to switch to RESET state */
- i2o_reset_controller(c);
-
- /* Release IRQ */
- i2o_pci_dispose(c);
-
- *p=c->next;
- up(&i2o_configuration_lock);
-
- if(c->page_frame)
- {
- pci_unmap_single(c->pdev, c->page_frame_map, MSG_POOL_SIZE, PCI_DMA_FROMDEVICE);
- kfree(c->page_frame);
- }
- if(c->hrt)
- pci_free_consistent(c->pdev, c->hrt_len, c->hrt, c->hrt_phys);
- if(c->lct)
- pci_free_consistent(c->pdev, c->lct->table_size << 2, c->lct, c->lct_phys);
- if(c->status_block)
- pci_free_consistent(c->pdev, sizeof(i2o_status_block), c->status_block, c->status_block_phys);
- if(c->dlct)
- pci_free_consistent(c->pdev, 8192, c->dlct, c->dlct_phys);
-
- i2o_controllers[c->unit]=NULL;
- memcpy(name, c->name, strlen(c->name)+1);
- kfree(c);
- dprintk(KERN_INFO "%s: Deleted from controller chain.\n", name);
-
- i2o_num_controllers--;
- return 0;
- }
- p=&((*p)->next);
- }
- up(&i2o_configuration_lock);
- printk(KERN_ERR "i2o_delete_controller: bad pointer!\n");
- return -ENOENT;
-}
-
-/**
- * i2o_unlock_controller - unlock a controller
- * @c: controller to unlock
- *
- * Take a lock on an i2o controller. This prevents it being deleted.
- * i2o controllers are not refcounted so a deletion of an in use device
- * will fail, not take affect on the last dereference.
- */
-
-void i2o_unlock_controller(struct i2o_controller *c)
-{
- atomic_dec(&c->users);
-}
-
-/**
- * i2o_find_controller - return a locked controller
- * @n: controller number
- *
- * Returns a pointer to the controller object. The controller is locked
- * on return. NULL is returned if the controller is not found.
- */
-
-struct i2o_controller *i2o_find_controller(int n)
-{
- struct i2o_controller *c;
-
- if(n<0 || n>=MAX_I2O_CONTROLLERS)
- return NULL;
-
- down(&i2o_configuration_lock);
- c=i2o_controllers[n];
- if(c!=NULL)
- atomic_inc(&c->users);
- up(&i2o_configuration_lock);
- return c;
-}
-
-/**
- * i2o_issue_claim - claim or release a device
- * @cmd: command
- * @c: controller to claim for
- * @tid: i2o task id
- * @type: type of claim
- *
- * Issue I2O UTIL_CLAIM and UTIL_RELEASE messages. The message to be sent
- * is set by cmd. The tid is the task id of the object to claim and the
- * type is the claim type (see the i2o standard)
- *
- * Zero is returned on success.
- */
-
-static int i2o_issue_claim(u32 cmd, struct i2o_controller *c, int tid, u32 type)
-{
- u32 msg[5];
-
- msg[0] = FIVE_WORD_MSG_SIZE | SGL_OFFSET_0;
- msg[1] = cmd << 24 | HOST_TID<<12 | tid;
- msg[3] = 0;
- msg[4] = type;
-
- return i2o_post_wait(c, msg, sizeof(msg), 60);
-}
-
-/*
- * i2o_claim_device - claim a device for use by an OSM
- * @d: device to claim
- * @h: handler for this device
- *
- * Do the leg work to assign a device to a given OSM on Linux. The
- * kernel updates the internal handler data for the device and then
- * performs an I2O claim for the device, attempting to claim the
- * device as primary. If the attempt fails a negative errno code
- * is returned. On success zero is returned.
- */
-
-int i2o_claim_device(struct i2o_device *d, struct i2o_handler *h)
-{
- int ret = 0;
-
- down(&i2o_configuration_lock);
- if (d->owner) {
- printk(KERN_INFO "Device claim called, but dev already owned by %s!",
- h->name);
- ret = -EBUSY;
- goto out;
- }
- d->owner=h;
-
- if(i2o_issue_claim(I2O_CMD_UTIL_CLAIM ,d->controller,d->lct_data.tid,
- I2O_CLAIM_PRIMARY))
- {
- d->owner = NULL;
- ret = -EBUSY;
- }
-out:
- up(&i2o_configuration_lock);
- return ret;
-}
-
-/**
- * i2o_release_device - release a device that the OSM is using
- * @d: device to claim
- * @h: handler for this device
- *
- * Drop a claim by an OSM on a given I2O device. The handler is cleared
- * and 0 is returned on success.
- *
- * AC - some devices seem to want to refuse an unclaim until they have
- * finished internal processing. It makes sense since you don't want a
- * new device to go reconfiguring the entire system until you are done.
- * Thus we are prepared to wait briefly.
- */
-
-int i2o_release_device(struct i2o_device *d, struct i2o_handler *h)
-{
- int err = 0;
- int tries;
-
- down(&i2o_configuration_lock);
- if (d->owner != h) {
- printk(KERN_INFO "Claim release called, but not owned by %s!\n",
- h->name);
- up(&i2o_configuration_lock);
- return -ENOENT;
- }
-
- for(tries=0;tries<10;tries++)
- {
- d->owner = NULL;
-
- /*
- * If the controller takes a nonblocking approach to
- * releases we have to sleep/poll for a few times.
- */
-
- if((err=i2o_issue_claim(I2O_CMD_UTIL_RELEASE, d->controller, d->lct_data.tid, I2O_CLAIM_PRIMARY)) )
- {
- err = -ENXIO;
- current->state = TASK_UNINTERRUPTIBLE;
- schedule_timeout(HZ);
- }
- else
- {
- err=0;
- break;
- }
- }
- up(&i2o_configuration_lock);
- return err;
-}
-
-/**
- * i2o_device_notify_on - Enable deletion notifiers
- * @d: device for notification
- * @h: handler to install
- *
- * Called by OSMs to let the core know that they want to be
- * notified if the given device is deleted from the system.
- */
-
-int i2o_device_notify_on(struct i2o_device *d, struct i2o_handler *h)
-{
- int i;
-
- if(d->num_managers == I2O_MAX_MANAGERS)
- return -ENOSPC;
-
- for(i = 0; i < I2O_MAX_MANAGERS; i++)
- {
- if(!d->managers[i])
- {
- d->managers[i] = h;
- break;
- }
- }
-
- d->num_managers++;
-
- return 0;
-}
-
-/**
- * i2o_device_notify_off - Remove deletion notifiers
- * @d: device for notification
- * @h: handler to remove
- *
- * Called by OSMs to let the core know that they no longer
- * are interested in the fate of the given device.
- */
-int i2o_device_notify_off(struct i2o_device *d, struct i2o_handler *h)
-{
- int i;
-
- for(i=0; i < I2O_MAX_MANAGERS; i++)
- {
- if(d->managers[i] == h)
- {
- d->managers[i] = NULL;
- d->num_managers--;
- return 0;
- }
- }
-
- return -ENOENT;
-}
-
-/**
- * i2o_event_register - register interest in an event
- * @c: Controller to register interest with
- * @tid: I2O task id
- * @init_context: initiator context to use with this notifier
- * @tr_context: transaction context to use with this notifier
- * @evt_mask: mask of events
- *
- * Create and posts an event registration message to the task. No reply
- * is waited for, or expected. Errors in posting will be reported.
- */
-
-int i2o_event_register(struct i2o_controller *c, u32 tid,
- u32 init_context, u32 tr_context, u32 evt_mask)
-{
- u32 msg[5]; // Not performance critical, so we just
- // i2o_post_this it instead of building it
- // in IOP memory
-
- msg[0] = FIVE_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_UTIL_EVT_REGISTER<<24 | HOST_TID<<12 | tid;
- msg[2] = init_context;
- msg[3] = tr_context;
- msg[4] = evt_mask;
-
- return i2o_post_this(c, msg, sizeof(msg));
-}
-
-/*
- * i2o_event_ack - acknowledge an event
- * @c: controller
- * @msg: pointer to the UTIL_EVENT_REGISTER reply we received
- *
- * We just take a pointer to the original UTIL_EVENT_REGISTER reply
- * message and change the function code since that's what spec
- * describes an EventAck message looking like.
- */
-
-int i2o_event_ack(struct i2o_controller *c, u32 *msg)
-{
- struct i2o_message *m = (struct i2o_message *)msg;
-
- m->function = I2O_CMD_UTIL_EVT_ACK;
-
- return i2o_post_wait(c, msg, m->size * 4, 2);
-}
-
-/*
- * Core event handler. Runs as a separate thread and is woken
- * up whenever there is an Executive class event.
- */
-static int i2o_core_evt(void *reply_data)
-{
- struct reply_info *reply = (struct reply_info *) reply_data;
- u32 *msg = reply->msg;
- struct i2o_controller *c = NULL;
- unsigned long flags;
-
- daemonize("i2oevtd");
- allow_signal(SIGKILL);
-
- evt_running = 1;
-
- while(1)
- {
- if(down_interruptible(&evt_sem))
- {
- dprintk(KERN_INFO "I2O event thread dead\n");
- printk("exiting...");
- evt_running = 0;
- complete_and_exit(&evt_dead, 0);
- }
-
- /*
- * Copy the data out of the queue so that we don't have to lock
- * around the whole function and just around the qlen update
- */
- spin_lock_irqsave(&i2o_evt_lock, flags);
- memcpy(reply, &events[evt_out], sizeof(struct reply_info));
- MODINC(evt_out, I2O_EVT_Q_LEN);
- evt_q_len--;
- spin_unlock_irqrestore(&i2o_evt_lock, flags);
-
- c = reply->iop;
- dprintk(KERN_INFO "I2O IRTOS EVENT: iop%d, event %#10x\n", c->unit, msg[4]);
-
- /*
- * We do not attempt to delete/quiesce/etc. the controller if
- * some sort of error indidication occurs. We may want to do
- * so in the future, but for now we just let the user deal with
- * it. One reason for this is that what to do with an error
- * or when to send what �rror is not really agreed on, so
- * we get errors that may not be fatal but just look like they
- * are...so let the user deal with it.
- */
- switch(msg[4])
- {
- case I2O_EVT_IND_EXEC_RESOURCE_LIMITS:
- printk(KERN_ERR "%s: Out of resources\n", c->name);
- break;
-
- case I2O_EVT_IND_EXEC_POWER_FAIL:
- printk(KERN_ERR "%s: Power failure\n", c->name);
- break;
-
- case I2O_EVT_IND_EXEC_HW_FAIL:
- {
- char *fail[] =
- {
- "Unknown Error",
- "Power Lost",
- "Code Violation",
- "Parity Error",
- "Code Execution Exception",
- "Watchdog Timer Expired"
- };
-
- if(msg[5] <= 6)
- printk(KERN_ERR "%s: Hardware Failure: %s\n",
- c->name, fail[msg[5]]);
- else
- printk(KERN_ERR "%s: Unknown Hardware Failure\n", c->name);
-
- break;
- }
-
- /*
- * New device created
- * - Create a new i2o_device entry
- * - Inform all interested drivers about this device's existence
- */
- case I2O_EVT_IND_EXEC_NEW_LCT_ENTRY:
- {
- struct i2o_device *d = (struct i2o_device *)
- kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
- int i;
-
- if (d == NULL) {
- printk(KERN_EMERG "i2oevtd: out of memory\n");
- break;
- }
- memcpy(&d->lct_data, &msg[5], sizeof(i2o_lct_entry));
-
- d->next = NULL;
- d->controller = c;
- d->flags = 0;
-
- i2o_report_controller_unit(c, d);
- i2o_install_device(c,d);
-
- for(i = 0; i < MAX_I2O_MODULES; i++)
- {
- if(i2o_handlers[i] &&
- i2o_handlers[i]->new_dev_notify &&
- (i2o_handlers[i]->class&d->lct_data.class_id))
- {
- spin_lock(&i2o_dev_lock);
- i2o_handlers[i]->new_dev_notify(c,d);
- spin_unlock(&i2o_dev_lock);
- }
- }
-
- break;
- }
-
- /*
- * LCT entry for a device has been modified, so update it
- * internally.
- */
- case I2O_EVT_IND_EXEC_MODIFIED_LCT:
- {
- struct i2o_device *d;
- i2o_lct_entry *new_lct = (i2o_lct_entry *)&msg[5];
-
- for(d = c->devices; d; d = d->next)
- {
- if(d->lct_data.tid == new_lct->tid)
- {
- memcpy(&d->lct_data, new_lct, sizeof(i2o_lct_entry));
- break;
- }
- }
- break;
- }
-
- case I2O_EVT_IND_CONFIGURATION_FLAG:
- printk(KERN_WARNING "%s requires user configuration\n", c->name);
- break;
-
- case I2O_EVT_IND_GENERAL_WARNING:
- printk(KERN_WARNING "%s: Warning notification received!"
- "Check configuration for errors!\n", c->name);
- break;
-
- case I2O_EVT_IND_EVT_MASK_MODIFIED:
- /* Well I guess that was us hey .. */
- break;
-
- default:
- printk(KERN_WARNING "%s: No handler for event (0x%08x)\n", c->name, msg[4]);
- break;
- }
- }
-
- return 0;
-}
-
-/*
- * Dynamic LCT update. This compares the LCT with the currently
- * installed devices to check for device deletions..this needed b/c there
- * is no DELETED_LCT_ENTRY EventIndicator for the Executive class so
- * we can't just have the event handler do this...annoying
- *
- * This is a hole in the spec that will hopefully be fixed someday.
- */
-static int i2o_dyn_lct(void *foo)
-{
- struct i2o_controller *c = (struct i2o_controller *)foo;
- struct i2o_device *d = NULL;
- struct i2o_device *d1 = NULL;
- int i = 0;
- int found = 0;
- int entries;
- void *tmp;
-
- daemonize("iop%d_lctd", c->unit);
- allow_signal(SIGKILL);
-
- c->lct_running = 1;
-
- while(1)
- {
- down_interruptible(&c->lct_sem);
- if(signal_pending(current))
- {
- dprintk(KERN_ERR "%s: LCT thread dead\n", c->name);
- c->lct_running = 0;
- return 0;
- }
-
- entries = c->dlct->table_size;
- entries -= 3;
- entries /= 9;
-
- dprintk(KERN_INFO "%s: Dynamic LCT Update\n",c->name);
- dprintk(KERN_INFO "%s: Dynamic LCT contains %d entries\n", c->name, entries);
-
- if(!entries)
- {
- printk(KERN_INFO "%s: Empty LCT???\n", c->name);
- continue;
- }
-
- /*
- * Loop through all the devices on the IOP looking for their
- * LCT data in the LCT. We assume that TIDs are not repeated.
- * as that is the only way to really tell. It's been confirmed
- * by the IRTOS vendor(s?) that TIDs are not reused until they
- * wrap arround(4096), and I doubt a system will up long enough
- * to create/delete that many devices.
- */
- for(d = c->devices; d; )
- {
- found = 0;
- d1 = d->next;
-
- for(i = 0; i < entries; i++)
- {
- if(d->lct_data.tid == c->dlct->lct_entry[i].tid)
- {
- found = 1;
- break;
- }
- }
- if(!found)
- {
- dprintk(KERN_INFO "i2o_core: Deleted device!\n");
- spin_lock(&i2o_dev_lock);
- i2o_delete_device(d);
- spin_unlock(&i2o_dev_lock);
- }
- d = d1;
- }
-
- /*
- * Tell LCT to renotify us next time there is a change
- */
- i2o_lct_notify(c);
-
- /*
- * Copy new LCT into public LCT
- *
- * Possible race if someone is reading LCT while we are copying
- * over it. If this happens, we'll fix it then. but I doubt that
- * the LCT will get updated often enough or will get read by
- * a user often enough to worry.
- */
- if(c->lct->table_size < c->dlct->table_size)
- {
- dma_addr_t phys;
- tmp = c->lct;
- c->lct = pci_alloc_consistent(c->pdev, c->dlct->table_size<<2, &phys);
- if(!c->lct)
- {
- printk(KERN_ERR "%s: No memory for LCT!\n", c->name);
- c->lct = tmp;
- continue;
- }
- pci_free_consistent(tmp, c->lct->table_size << 2, c->lct, c->lct_phys);
- c->lct_phys = phys;
- }
- memcpy(c->lct, c->dlct, c->dlct->table_size<<2);
- }
-
- return 0;
-}
-
-/**
- * i2o_run_queue - process pending events on a controller
- * @c: controller to process
- *
- * This is called by the bus specific driver layer when an interrupt
- * or poll of this card interface is desired.
- */
-
-void i2o_run_queue(struct i2o_controller *c)
-{
- struct i2o_message *m;
- u32 mv;
- u32 *msg;
-
- /*
- * Old 960 steppings had a bug in the I2O unit that caused
- * the queue to appear empty when it wasn't.
- */
- if((mv=I2O_REPLY_READ32(c))==0xFFFFFFFF)
- mv=I2O_REPLY_READ32(c);
-
- while(mv!=0xFFFFFFFF)
- {
- struct i2o_handler *i;
- /* Map the message from the page frame map to kernel virtual */
- /* m=(struct i2o_message *)(mv - (unsigned long)c->page_frame_map + (unsigned long)c->page_frame); */
- m=(struct i2o_message *)bus_to_virt(mv);
- msg=(u32*)m;
-
- /*
- * Ensure this message is seen coherently but cachably by
- * the processor
- */
-
- pci_dma_sync_single_for_cpu(c->pdev, c->page_frame_map, MSG_FRAME_SIZE, PCI_DMA_FROMDEVICE);
-
- /*
- * Despatch it
- */
-
- i=i2o_handlers[m->initiator_context&(MAX_I2O_MODULES-1)];
- if(i && i->reply)
- i->reply(i,c,m);
- else
- {
- printk(KERN_WARNING "I2O: Spurious reply to handler %d\n",
- m->initiator_context&(MAX_I2O_MODULES-1));
- }
- i2o_flush_reply(c,mv);
- mb();
-
- /* That 960 bug again... */
- if((mv=I2O_REPLY_READ32(c))==0xFFFFFFFF)
- mv=I2O_REPLY_READ32(c);
- }
-}
-
-
-/**
- * i2o_get_class_name - do i2o class name lookup
- * @class: class number
- *
- * Return a descriptive string for an i2o class
- */
-
-const char *i2o_get_class_name(int class)
-{
- int idx = 16;
- static char *i2o_class_name[] = {
- "Executive",
- "Device Driver Module",
- "Block Device",
- "Tape Device",
- "LAN Interface",
- "WAN Interface",
- "Fibre Channel Port",
- "Fibre Channel Device",
- "SCSI Device",
- "ATE Port",
- "ATE Device",
- "Floppy Controller",
- "Floppy Device",
- "Secondary Bus Port",
- "Peer Transport Agent",
- "Peer Transport",
- "Unknown"
- };
-
- switch(class&0xFFF)
- {
- case I2O_CLASS_EXECUTIVE:
- idx = 0; break;
- case I2O_CLASS_DDM:
- idx = 1; break;
- case I2O_CLASS_RANDOM_BLOCK_STORAGE:
- idx = 2; break;
- case I2O_CLASS_SEQUENTIAL_STORAGE:
- idx = 3; break;
- case I2O_CLASS_LAN:
- idx = 4; break;
- case I2O_CLASS_WAN:
- idx = 5; break;
- case I2O_CLASS_FIBRE_CHANNEL_PORT:
- idx = 6; break;
- case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL:
- idx = 7; break;
- case I2O_CLASS_SCSI_PERIPHERAL:
- idx = 8; break;
- case I2O_CLASS_ATE_PORT:
- idx = 9; break;
- case I2O_CLASS_ATE_PERIPHERAL:
- idx = 10; break;
- case I2O_CLASS_FLOPPY_CONTROLLER:
- idx = 11; break;
- case I2O_CLASS_FLOPPY_DEVICE:
- idx = 12; break;
- case I2O_CLASS_BUS_ADAPTER_PORT:
- idx = 13; break;
- case I2O_CLASS_PEER_TRANSPORT_AGENT:
- idx = 14; break;
- case I2O_CLASS_PEER_TRANSPORT:
- idx = 15; break;
- }
-
- return i2o_class_name[idx];
-}
-
-
-/**
- * i2o_wait_message - obtain an i2o message from the IOP
- * @c: controller
- * @why: explanation
- *
- * This function waits up to 5 seconds for a message slot to be
- * available. If no message is available it prints an error message
- * that is expected to be what the message will be used for (eg
- * "get_status"). 0xFFFFFFFF is returned on a failure.
- *
- * On a success the message is returned. This is the physical page
- * frame offset address from the read port. (See the i2o spec)
- */
-
-u32 i2o_wait_message(struct i2o_controller *c, char *why)
-{
- long time=jiffies;
- u32 m;
- while((m=I2O_POST_READ32(c))==0xFFFFFFFF)
- {
- if((jiffies-time)>=5*HZ)
- {
- dprintk(KERN_ERR "%s: Timeout waiting for message frame to send %s.\n",
- c->name, why);
- return 0xFFFFFFFF;
- }
- schedule();
- barrier();
- }
- return m;
-}
-
-/**
- * i2o_report_controller_unit - print information about a tid
- * @c: controller
- * @d: device
- *
- * Dump an information block associated with a given unit (TID). The
- * tables are read and a block of text is output to printk that is
- * formatted intended for the user.
- */
-
-void i2o_report_controller_unit(struct i2o_controller *c, struct i2o_device *d)
-{
- char buf[64];
- char str[22];
- int ret;
- int unit = d->lct_data.tid;
-
- if(verbose==0)
- return;
-
- printk(KERN_INFO "Target ID %d.\n", unit);
- if((ret=i2o_query_scalar(c, unit, 0xF100, 3, buf, 16))>=0)
- {
- buf[16]=0;
- printk(KERN_INFO " Vendor: %s\n", buf);
- }
- if((ret=i2o_query_scalar(c, unit, 0xF100, 4, buf, 16))>=0)
- {
- buf[16]=0;
- printk(KERN_INFO " Device: %s\n", buf);
- }
- if(i2o_query_scalar(c, unit, 0xF100, 5, buf, 16)>=0)
- {
- buf[16]=0;
- printk(KERN_INFO " Description: %s\n", buf);
- }
- if((ret=i2o_query_scalar(c, unit, 0xF100, 6, buf, 8))>=0)
- {
- buf[8]=0;
- printk(KERN_INFO " Rev: %s\n", buf);
- }
-
- printk(KERN_INFO " Class: ");
- sprintf(str, "%-21s", i2o_get_class_name(d->lct_data.class_id));
- printk("%s\n", str);
-
- printk(KERN_INFO " Subclass: 0x%04X\n", d->lct_data.sub_class);
- printk(KERN_INFO " Flags: ");
-
- if(d->lct_data.device_flags&(1<<0))
- printk("C"); // ConfigDialog requested
- if(d->lct_data.device_flags&(1<<1))
- printk("U"); // Multi-user capable
- if(!(d->lct_data.device_flags&(1<<4)))
- printk("P"); // Peer service enabled!
- if(!(d->lct_data.device_flags&(1<<5)))
- printk("M"); // Mgmt service enabled!
- printk("\n");
-
-}
-
-
-/*
- * Parse the hardware resource table. Right now we print it out
- * and don't do a lot with it. We should collate these and then
- * interact with the Linux resource allocation block.
- *
- * Lets prove we can read it first eh ?
- *
- * This is full of endianisms!
- */
-
-static int i2o_parse_hrt(struct i2o_controller *c)
-{
-#ifdef DRIVERDEBUG
- u32 *rows=(u32*)c->hrt;
- u8 *p=(u8 *)c->hrt;
- u8 *d;
- int count;
- int length;
- int i;
- int state;
-
- if(p[3]!=0)
- {
- printk(KERN_ERR "%s: HRT table for controller is too new a version.\n",
- c->name);
- return -1;
- }
-
- count=p[0]|(p[1]<<8);
- length = p[2];
-
- printk(KERN_INFO "%s: HRT has %d entries of %d bytes each.\n",
- c->name, count, length<<2);
-
- rows+=2;
-
- for(i=0;i<count;i++)
- {
- printk(KERN_INFO "Adapter %08X: ", rows[0]);
- p=(u8 *)(rows+1);
- d=(u8 *)(rows+2);
- state=p[1]<<8|p[0];
-
- printk("TID %04X:[", state&0xFFF);
- state>>=12;
- if(state&(1<<0))
- printk("H"); /* Hidden */
- if(state&(1<<2))
- {
- printk("P"); /* Present */
- if(state&(1<<1))
- printk("C"); /* Controlled */
- }
- if(state>9)
- printk("*"); /* Hard */
-
- printk("]:");
-
- switch(p[3]&0xFFFF)
- {
- case 0:
- /* Adapter private bus - easy */
- printk("Local bus %d: I/O at 0x%04X Mem 0x%08X",
- p[2], d[1]<<8|d[0], *(u32 *)(d+4));
- break;
- case 1:
- /* ISA bus */
- printk("ISA %d: CSN %d I/O at 0x%04X Mem 0x%08X",
- p[2], d[2], d[1]<<8|d[0], *(u32 *)(d+4));
- break;
-
- case 2: /* EISA bus */
- printk("EISA %d: Slot %d I/O at 0x%04X Mem 0x%08X",
- p[2], d[3], d[1]<<8|d[0], *(u32 *)(d+4));
- break;
-
- case 3: /* MCA bus */
- printk("MCA %d: Slot %d I/O at 0x%04X Mem 0x%08X",
- p[2], d[3], d[1]<<8|d[0], *(u32 *)(d+4));
- break;
-
- case 4: /* PCI bus */
- printk("PCI %d: Bus %d Device %d Function %d",
- p[2], d[2], d[1], d[0]);
- break;
-
- case 0x80: /* Other */
- default:
- printk("Unsupported bus type.");
- break;
- }
- printk("\n");
- rows+=length;
- }
-#endif
- return 0;
-}
-
-/*
- * The logical configuration table tells us what we can talk to
- * on the board. Most of the stuff isn't interesting to us.
- */
-
-static int i2o_parse_lct(struct i2o_controller *c)
-{
- int i;
- int max;
- int tid;
- struct i2o_device *d;
- i2o_lct *lct = c->lct;
-
- if (lct == NULL) {
- printk(KERN_ERR "%s: LCT is empty???\n", c->name);
- return -1;
- }
-
- max = lct->table_size;
- max -= 3;
- max /= 9;
-
- printk(KERN_INFO "%s: LCT has %d entries.\n", c->name, max);
-
- if(lct->iop_flags&(1<<0))
- printk(KERN_WARNING "%s: Configuration dialog desired.\n", c->name);
-
- for(i=0;i<max;i++)
- {
- d = (struct i2o_device *)kmalloc(sizeof(struct i2o_device), GFP_KERNEL);
- if(d==NULL)
- {
- printk(KERN_CRIT "i2o_core: Out of memory for I2O device data.\n");
- return -ENOMEM;
- }
-
- d->controller = c;
- d->next = NULL;
-
- memcpy(&d->lct_data, &lct->lct_entry[i], sizeof(i2o_lct_entry));
-
- d->flags = 0;
- tid = d->lct_data.tid;
-
- i2o_report_controller_unit(c, d);
-
- i2o_install_device(c, d);
- }
- return 0;
-}
-
-
-/**
- * i2o_quiesce_controller - quiesce controller
- * @c: controller
- *
- * Quiesce an IOP. Causes IOP to make external operation quiescent
- * (i2o 'READY' state). Internal operation of the IOP continues normally.
- */
-
-int i2o_quiesce_controller(struct i2o_controller *c)
-{
- u32 msg[4];
- int ret;
-
- i2o_status_get(c);
-
- /* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */
-
- if ((c->status_block->iop_state != ADAPTER_STATE_READY) &&
- (c->status_block->iop_state != ADAPTER_STATE_OPERATIONAL))
- {
- return 0;
- }
-
- msg[0] = FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1] = I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID;
- msg[3] = 0;
-
- /* Long timeout needed for quiesce if lots of devices */
-
- if ((ret = i2o_post_wait(c, msg, sizeof(msg), 240)))
- printk(KERN_INFO "%s: Unable to quiesce (status=%#x).\n",
- c->name, -ret);
- else
- dprintk(KERN_INFO "%s: Quiesced.\n", c->name);
-
- i2o_status_get(c); // Entered READY state
- return ret;
-}
-
-/**
- * i2o_enable_controller - move controller from ready to operational
- * @c: controller
- *
- * Enable IOP. This allows the IOP to resume external operations and
- * reverses the effect of a quiesce. In the event of an error a negative
- * errno code is returned.
- */
-
-int i2o_enable_controller(struct i2o_controller *c)
-{
- u32 msg[4];
- int ret;
-
- i2o_status_get(c);
-
- /* Enable only allowed on READY state */
- if(c->status_block->iop_state != ADAPTER_STATE_READY)
- return -EINVAL;
-
- msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1]=I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID;
-
- /* How long of a timeout do we need? */
-
- if ((ret = i2o_post_wait(c, msg, sizeof(msg), 240)))
- printk(KERN_ERR "%s: Could not enable (status=%#x).\n",
- c->name, -ret);
- else
- dprintk(KERN_INFO "%s: Enabled.\n", c->name);
-
- i2o_status_get(c); // entered OPERATIONAL state
-
- return ret;
-}
-
-/**
- * i2o_clear_controller - clear a controller
- * @c: controller
- *
- * Clear an IOP to HOLD state, ie. terminate external operations, clear all
- * input queues and prepare for a system restart. IOP's internal operation
- * continues normally and the outbound queue is alive.
- * The IOP is not expected to rebuild its LCT.
- */
-
-int i2o_clear_controller(struct i2o_controller *c)
-{
- struct i2o_controller *iop;
- u32 msg[4];
- int ret;
-
- /* Quiesce all IOPs first */
-
- for (iop = i2o_controller_chain; iop; iop = iop->next)
- i2o_quiesce_controller(iop);
-
- msg[0]=FOUR_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1]=I2O_CMD_ADAPTER_CLEAR<<24|HOST_TID<<12|ADAPTER_TID;
- msg[3]=0;
-
- if ((ret=i2o_post_wait(c, msg, sizeof(msg), 30)))
- printk(KERN_INFO "%s: Unable to clear (status=%#x).\n",
- c->name, -ret);
- else
- dprintk(KERN_INFO "%s: Cleared.\n",c->name);
-
- i2o_status_get(c);
-
- /* Enable other IOPs */
-
- for (iop = i2o_controller_chain; iop; iop = iop->next)
- if (iop != c)
- i2o_enable_controller(iop);
-
- return ret;
-}
-
-
-/**
- * i2o_reset_controller - reset an IOP
- * @c: controller to reset
- *
- * Reset the IOP into INIT state and wait until IOP gets into RESET state.
- * Terminate all external operations, clear IOP's inbound and outbound
- * queues, terminate all DDMs, and reload the IOP's operating environment
- * and all local DDMs. The IOP rebuilds its LCT.
- */
-
-static int i2o_reset_controller(struct i2o_controller *c)
-{
- struct i2o_controller *iop;
- u32 m;
- u8 *status;
- dma_addr_t status_phys;
- u32 *msg;
- long time;
-
- /* Quiesce all IOPs first */
-
- for (iop = i2o_controller_chain; iop; iop = iop->next)
- {
- if(!iop->dpt)
- i2o_quiesce_controller(iop);
- }
-
- m=i2o_wait_message(c, "AdapterReset");
- if(m==0xFFFFFFFF)
- return -ETIMEDOUT;
- msg=(u32 *)(c->msg_virt+m);
-
- status = pci_alloc_consistent(c->pdev, 4, &status_phys);
- if(status == NULL) {
- printk(KERN_ERR "IOP reset failed - no free memory.\n");
- return -ENOMEM;
- }
- memset(status, 0, 4);
-
- msg[0]=EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1]=I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID;
- msg[2]=core_context;
- msg[3]=0;
- msg[4]=0;
- msg[5]=0;
- msg[6]=status_phys;
- msg[7]=0; /* 64bit host FIXME */
-
- i2o_post_message(c,m);
-
- /* Wait for a reply */
- time=jiffies;
- while(*status==0)
- {
- if((jiffies-time)>=20*HZ)
- {
- printk(KERN_ERR "IOP reset timeout.\n");
- /* The controller still may respond and overwrite
- * status_phys, LEAK it to prevent memory corruption.
- */
- return -ETIMEDOUT;
- }
- schedule();
- barrier();
- }
-
- if (*status==I2O_CMD_IN_PROGRESS)
- {
- /*
- * Once the reset is sent, the IOP goes into the INIT state
- * which is indeterminate. We need to wait until the IOP
- * has rebooted before we can let the system talk to
- * it. We read the inbound Free_List until a message is
- * available. If we can't read one in the given ammount of
- * time, we assume the IOP could not reboot properly.
- */
-
- dprintk(KERN_INFO "%s: Reset in progress, waiting for reboot...\n",
- c->name);
-
- time = jiffies;
- m = I2O_POST_READ32(c);
- while(m == 0XFFFFFFFF)
- {
- if((jiffies-time) >= 30*HZ)
- {
- printk(KERN_ERR "%s: Timeout waiting for IOP reset.\n",
- c->name);
- /* The controller still may respond and
- * overwrite status_phys, LEAK it to prevent
- * memory corruption.
- */
- return -ETIMEDOUT;
- }
- schedule();
- barrier();
- m = I2O_POST_READ32(c);
- }
- i2o_flush_reply(c,m);
- }
-
- /* If IopReset was rejected or didn't perform reset, try IopClear */
-
- i2o_status_get(c);
- if (status[0] == I2O_CMD_REJECTED ||
- c->status_block->iop_state != ADAPTER_STATE_RESET)
- {
- printk(KERN_WARNING "%s: Reset rejected, trying to clear\n",c->name);
- i2o_clear_controller(c);
- }
- else
- dprintk(KERN_INFO "%s: Reset completed.\n", c->name);
-
- /* Enable other IOPs */
-
- for (iop = i2o_controller_chain; iop; iop = iop->next)
- if (iop != c)
- i2o_enable_controller(iop);
-
- pci_free_consistent(c->pdev, 4, status, status_phys);
- return 0;
-}
-
-
-/**
- * i2o_status_get - get the status block for the IOP
- * @c: controller
- *
- * Issue a status query on the controller. This updates the
- * attached status_block. If the controller fails to reply or an
- * error occurs then a negative errno code is returned. On success
- * zero is returned and the status_blok is updated.
- */
-
-int i2o_status_get(struct i2o_controller *c)
-{
- long time;
- u32 m;
- u32 *msg;
- u8 *status_block;
-
- if (c->status_block == NULL)
- {
- c->status_block = (i2o_status_block *)
- pci_alloc_consistent(c->pdev, sizeof(i2o_status_block), &c->status_block_phys);
- if (c->status_block == NULL)
- {
- printk(KERN_CRIT "%s: Get Status Block failed; Out of memory.\n",
- c->name);
- return -ENOMEM;
- }
- }
-
- status_block = (u8*)c->status_block;
- memset(c->status_block,0,sizeof(i2o_status_block));
-
- m=i2o_wait_message(c, "StatusGet");
- if(m==0xFFFFFFFF)
- return -ETIMEDOUT;
- msg=(u32 *)(c->msg_virt+m);
-
- msg[0]=NINE_WORD_MSG_SIZE|SGL_OFFSET_0;
- msg[1]=I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID;
- msg[2]=core_context;
- msg[3]=0;
- msg[4]=0;
- msg[5]=0;
- msg[6]=c->status_block_phys;
- msg[7]=0; /* 64bit host FIXME */
- msg[8]=sizeof(i2o_status_block); /* always 88 bytes */
-
- i2o_post_message(c,m);
-
- /* Wait for a reply */
-
- time=jiffies;
- while(status_block[87]!=0xFF)
- {
- if((jiffies-time)>=5*HZ)
- {
- printk(KERN_ERR "%s: Get status timeout.\n",c->name);
- return -ETIMEDOUT;
- }
- yield();
- barrier();
- }
-
-#ifdef DRIVERDEBUG
- printk(KERN_INFO "%s: State = ", c->name);
- switch (c->status_block->iop_state) {
- case 0x01:
- printk("INIT\n");
- break;
- case 0x02:
- printk("RESET\n");
- break;
- case 0x04:
- printk("HOLD\n");
- break;
- case 0x05:
- printk("READY\n");
- break;
- case 0x08:
- printk("OPERATIONAL\n");
- break;
- case 0x10:
- printk("FAILED\n");
- break;
- case 0x11:
- printk("FAULTED\n");
- break;
- default:
- printk("%x (unknown !!)\n",c->status_block->iop_state);
-}
-#endif
-
- return 0;
-}
-
-/*
- * Get the Hardware Resource Table for the device.
- * The HRT contains information about possible hidden devices
- * but is mostly useless to us
- */
-int i2o_hrt_get(struct i2o_controller *c)
-{
- u32 msg[6];
- int ret, size = sizeof(i2o_hrt);
- int loops = 3; /* we only try 3 times to get the HRT, this should be
- more then enough. Worst case should be 2 times.*/
-
- /* First read just the header to figure out the real size */
-
- do {
- /* first we allocate the memory for the HRT */
- if (c->hrt == NULL) {
- c->hrt=pci_alloc_consistent(c->pdev, size, &c->hrt_phys);
- if (c->hrt == NULL) {
- printk(KERN_CRIT "%s: Hrt Get failed; Out of memory.\n", c->name);
- return -ENOMEM;
- }
- c->hrt_len = size;
- }
-
- msg[0]= SIX_WORD_MSG_SIZE| SGL_OFFSET_4;
- msg[1]= I2O_CMD_HRT_GET<<24 | HOST_TID<<12 | ADAPTER_TID;
- msg[3]= 0;
- msg[4]= (0xD0000000 | c->hrt_len); /* Simple transaction */
- msg[5]= c->hrt_phys; /* Dump it here */
-
- ret = i2o_post_wait_mem(c, msg, sizeof(msg), 20, c->hrt, NULL, c->hrt_phys, 0, c->hrt_len, 0);
-
- if(ret == -ETIMEDOUT)
- {
- /* The HRT block we used is in limbo somewhere. When the iop wakes up
- we will recover it */
- c->hrt = NULL;
- c->hrt_len = 0;
- return ret;
- }
-
- if(ret<0)
- {
- printk(KERN_ERR "%s: Unable to get HRT (status=%#x)\n",
- c->name, -ret);
- return ret;
- }
-
- if (c->hrt->num_entries * c->hrt->entry_len << 2 > c->hrt_len) {
- size = c->hrt->num_entries * c->hrt->entry_len << 2;
- pci_free_consistent(c->pdev, c->hrt_len, c->hrt, c->hrt_phys);
- c->hrt_len = 0;
- c->hrt = NULL;
- }
- loops --;
- } while (c->hrt == NULL && loops > 0);
-
- if(c->hrt == NULL)
- {
- printk(KERN_ERR "%s: Unable to get HRT after three tries, giving up\n", c->name);
- return -1;
- }
-
- i2o_parse_hrt(c); // just for debugging
-
- return 0;
-}
-
-/*
- * Send the I2O System Table to the specified IOP
- *
- * The system table contains information about all the IOPs in the
- * system. It is build and then sent to each IOP so that IOPs can
- * establish connections between each other.
- *
- */
-static int i2o_systab_send(struct i2o_controller *iop)
-{
- u32 msg[12];
- dma_addr_t sys_tbl_phys;
- int ret;
- struct resource *root;
- u32 *privbuf = kmalloc(16, GFP_KERNEL);
- if(privbuf == NULL)
- return -ENOMEM;
-
-
- if(iop->status_block->current_mem_size < iop->status_block->desired_mem_size)
- {
- struct resource *res = &iop->mem_resource;
- res->name = iop->pdev->bus->name;
- res->flags = IORESOURCE_MEM;
- res->start = 0;
- res->end = 0;
- printk("%s: requires private memory resources.\n", iop->name);
- root = pci_find_parent_resource(iop->pdev, res);
- if(root==NULL)
- printk("Can't find parent resource!\n");
- if(root && allocate_resource(root, res,
- iop->status_block->desired_mem_size,
- iop->status_block->desired_mem_size,
- iop->status_block->desired_mem_size,
- 1<<20, /* Unspecified, so use 1Mb and play safe */
- NULL,
- NULL)>=0)
- {
- iop->mem_alloc = 1;
- iop->status_block->current_mem_size = 1 + res->end - res->start;
- iop->status_block->current_mem_base = res->start;
- printk(KERN_INFO "%s: allocated %ld bytes of PCI memory at 0x%08lX.\n",
- iop->name, 1+res->end-res->start, res->start);
- }
- }
- if(iop->status_block->current_io_size < iop->status_block->desired_io_size)
- {
- struct resource *res = &iop->io_resource;
- res->name = iop->pdev->bus->name;
- res->flags = IORESOURCE_IO;
- res->start = 0;
- res->end = 0;
- printk("%s: requires private memory resources.\n", iop->name);
- root = pci_find_parent_resource(iop->pdev, res);
- if(root==NULL)
- printk("Can't find parent resource!\n");
- if(root && allocate_resource(root, res,
- iop->status_block->desired_io_size,
- iop->status_block->desired_io_size,
- iop->status_block->desired_io_size,
- 1<<20, /* Unspecified, so use 1Mb and play safe */
- NULL,
- NULL)>=0)
- {
- iop->io_alloc = 1;
- iop->status_block->current_io_size = 1 + res->end - res->start;
- iop->status_block->current_mem_base = res->start;
- printk(KERN_INFO "%s: allocated %ld bytes of PCI I/O at 0x%08lX.\n",
- iop->name, 1+res->end-res->start, res->start);
- }
- }
- else
- {
- privbuf[0] = iop->status_block->current_mem_base;
- privbuf[1] = iop->status_block->current_mem_size;
- privbuf[2] = iop->status_block->current_io_base;
- privbuf[3] = iop->status_block->current_io_size;
- }
-
- msg[0] = I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6;
- msg[1] = I2O_CMD_SYS_TAB_SET<<24 | HOST_TID<<12 | ADAPTER_TID;
- msg[3] = 0;
- msg[4] = (0<<16) | ((iop->unit+2) ); /* Host 0 IOP ID (unit + 2) */
- msg[5] = 0; /* Segment 0 */
-
- /*
- * Provide three SGL-elements:
- * System table (SysTab), Private memory space declaration and
- * Private i/o space declaration
- *
- * Nasty one here. We can't use pci_alloc_consistent to send the
- * same table to everyone. We have to go remap it for them all
- */
-
- sys_tbl_phys = pci_map_single(iop->pdev, sys_tbl, sys_tbl_len, PCI_DMA_TODEVICE);
- msg[6] = 0x54000000 | sys_tbl_phys;
-
- msg[7] = sys_tbl_phys;
- msg[8] = 0x54000000 | privbuf[1];
- msg[9] = privbuf[0];
- msg[10] = 0xD4000000 | privbuf[3];
- msg[11] = privbuf[2];
-
- ret=i2o_post_wait(iop, msg, sizeof(msg), 120);
-
- pci_unmap_single(iop->pdev, sys_tbl_phys, sys_tbl_len, PCI_DMA_TODEVICE);
-
- if(ret==-ETIMEDOUT)
- {
- printk(KERN_ERR "%s: SysTab setup timed out.\n", iop->name);
- }
- else if(ret<0)
- {
- printk(KERN_ERR "%s: Unable to set SysTab (status=%#x).\n",
- iop->name, -ret);
- }
- else
- {
- dprintk(KERN_INFO "%s: SysTab set.\n", iop->name);
- }
- i2o_status_get(iop); // Entered READY state
-
- kfree(privbuf);
- return ret;
-
- }
-
-/*
- * Initialize I2O subsystem.
- */
-void __init i2o_sys_init(void)
-{
- struct i2o_controller *iop, *niop = NULL;
-
- printk(KERN_INFO "Activating I2O controllers...\n");
- printk(KERN_INFO "This may take a few minutes if there are many devices\n");
-
- /* In INIT state, Activate IOPs */
- for (iop = i2o_controller_chain; iop; iop = niop) {
- dprintk(KERN_INFO "Calling i2o_activate_controller for %s...\n",
- iop->name);
- niop = iop->next;
- if (i2o_activate_controller(iop) < 0)
- i2o_delete_controller(iop);
- }
-
- /* Active IOPs in HOLD state */
-
-rebuild_sys_tab:
- if (i2o_controller_chain == NULL)
- return;
-
- /*
- * If build_sys_table fails, we kill everything and bail
- * as we can't init the IOPs w/o a system table
- */
- dprintk(KERN_INFO "i2o_core: Calling i2o_build_sys_table...\n");
- if (i2o_build_sys_table() < 0) {
- i2o_sys_shutdown();
- return;
- }
-
- /* If IOP don't get online, we need to rebuild the System table */
- for (iop = i2o_controller_chain; iop; iop = niop) {
- niop = iop->next;
- dprintk(KERN_INFO "Calling i2o_online_controller for %s...\n", iop->name);
- if (i2o_online_controller(iop) < 0) {
- i2o_delete_controller(iop);
- goto rebuild_sys_tab;
- }
- }
-
- /* Active IOPs now in OPERATIONAL state */
-
- /*
- * Register for status updates from all IOPs
- */
- for(iop = i2o_controller_chain; iop; iop=iop->next) {
-
- /* Create a kernel thread to deal with dynamic LCT updates */
- iop->lct_pid = kernel_thread(i2o_dyn_lct, iop, CLONE_SIGHAND);
-
- /* Update change ind on DLCT */
- iop->dlct->change_ind = iop->lct->change_ind;
-
- /* Start dynamic LCT updates */
- i2o_lct_notify(iop);
-
- /* Register for all events from IRTOS */
- i2o_event_register(iop, core_context, 0, 0, 0xFFFFFFFF);
- }
-}
-
-/**
- * i2o_sys_shutdown - shutdown I2O system
- *
- * Bring down each i2o controller and then return. Each controller
- * is taken through an orderly shutdown
- */
-
-static void i2o_sys_shutdown(void)
-{
- struct i2o_controller *iop, *niop;
-
- /* Delete all IOPs from the controller chain */
- /* that will reset all IOPs too */
-
- for (iop = i2o_controller_chain; iop; iop = niop) {
- niop = iop->next;
- i2o_delete_controller(iop);
- }
-}
-
-/**
- * i2o_activate_controller - bring controller up to HOLD
- * @iop: controller
- *
- * This function brings an I2O controller into HOLD state. The adapter
- * is reset if necessary and then the queues and resource table
- * are read. -1 is returned on a failure, 0 on success.
- *
- */
-
-int i2o_activate_controller(struct i2o_controller *iop)
-{
- /* In INIT state, Wait Inbound Q to initialize (in i2o_status_get) */
- /* In READY state, Get status */
-
- if (i2o_status_get(iop) < 0) {
- printk(KERN_INFO "Unable to obtain status of %s, "
- "attempting a reset.\n", iop->name);
- if (i2o_reset_controller(iop) < 0)
- return -1;
- }
-
- if(iop->status_block->iop_state == ADAPTER_STATE_FAULTED) {
- printk(KERN_CRIT "%s: hardware fault\n", iop->name);
- return -1;
- }
-
- if (iop->status_block->i2o_version > I2OVER15) {
- printk(KERN_ERR "%s: Not running vrs. 1.5. of the I2O Specification.\n",
- iop->name);
- return -1;
- }
-
- if (iop->status_block->iop_state == ADAPTER_STATE_READY ||
- iop->status_block->iop_state == ADAPTER_STATE_OPERATIONAL ||
- iop->status_block->iop_state == ADAPTER_STATE_HOLD ||
- iop->status_block->iop_state == ADAPTER_STATE_FAILED)
- {
- dprintk(KERN_INFO "%s: Already running, trying to reset...\n",
- iop->name);
- if (i2o_reset_controller(iop) < 0)
- return -1;
- }
-
- if (i2o_init_outbound_q(iop) < 0)
- return -1;
-
- if (i2o_post_outbound_messages(iop))
- return -1;
-
- /* In HOLD state */
-
- if (i2o_hrt_get(iop) < 0)
- return -1;
-
- return 0;
-}
-
-
-/**
- * i2o_init_outbound_queue - setup the outbound queue
- * @c: controller
- *
- * Clear and (re)initialize IOP's outbound queue. Returns 0 on
- * success or a negative errno code on a failure.
- */
-
-int i2o_init_outbound_q(struct i2o_controller *c)
-{
- u8 *status;
- dma_addr_t status_phys;
- u32 m;
- u32 *msg;
- u32 time;
-
- dprintk(KERN_INFO "%s: Initializing Outbound Queue...\n", c->name);
- m=i2o_wait_message(c, "OutboundInit");
- if(m==0xFFFFFFFF)
- return -ETIMEDOUT;
- msg=(u32 *)(c->msg_virt+m);
-
- status = pci_alloc_consistent(c->pdev, 4, &status_phys);
- if (status==NULL) {
- printk(KERN_ERR "%s: Outbound Queue initialization failed - no free memory.\n",
- c->name);
- return -ENOMEM;
- }
- memset(status, 0, 4);
-
- msg[0]= EIGHT_WORD_MSG_SIZE| TRL_OFFSET_6;
- msg[1]= I2O_CMD_OUTBOUND_INIT<<24 | HOST_TID<<12 | ADAPTER_TID;
- msg[2]= core_context;
- msg[3]= 0x0106; /* Transaction context */
- msg[4]= 4096; /* Host page frame size */
- /* Frame size is in words. 256 bytes a frame for now */
- msg[5]= MSG_FRAME_SIZE<<16|0x80; /* Outbound msg frame size in words and Initcode */
- msg[6]= 0xD0000004; /* Simple SG LE, EOB */
- msg[7]= status_phys;
-
- i2o_post_message(c,m);
-
- barrier();
- time=jiffies;
- while(status[0] < I2O_CMD_REJECTED)
- {
- if((jiffies-time)>=30*HZ)
- {
- if(status[0]==0x00)
- printk(KERN_ERR "%s: Ignored queue initialize request.\n",
- c->name);
- else
- printk(KERN_ERR "%s: Outbound queue initialize timeout.\n",
- c->name);
- pci_free_consistent(c->pdev, 4, status, status_phys);
- return -ETIMEDOUT;
- }
- yield();
- barrier();
- }
-
- if(status[0] != I2O_CMD_COMPLETED)
- {
- printk(KERN_ERR "%s: IOP outbound initialise failed.\n", c->name);
- pci_free_consistent(c->pdev, 4, status, status_phys);
- return -ETIMEDOUT;
- }
- pci_free_consistent(c->pdev, 4, status, status_phys);
- return 0;
-}
-
-/**
- * i2o_post_outbound_messages - fill message queue
- * @c: controller
- *
- * Allocate a message frame and load the messages into the IOP. The
- * function returns zero on success or a negative errno code on
- * failure.
- */
-
-int i2o_post_outbound_messages(struct i2o_controller *c)
-{
- int i;
- u32 m;
- /* Alloc space for IOP's outbound queue message frames */
-
- c->page_frame = kmalloc(MSG_POOL_SIZE, GFP_KERNEL);
- if(c->page_frame==NULL) {
- printk(KERN_ERR "%s: Outbound Q initialize failed; out of memory.\n",
- c->name);
- return -ENOMEM;
- }
-
- c->page_frame_map = pci_map_single(c->pdev, c->page_frame, MSG_POOL_SIZE, PCI_DMA_FROMDEVICE);
-
- if(c->page_frame_map == 0)
- {
- kfree(c->page_frame);
- printk(KERN_ERR "%s: Unable to map outbound queue.\n", c->name);
- return -ENOMEM;
- }
-
- m = c->page_frame_map;
-
- /* Post frames */
-
- for(i=0; i< NMBR_MSG_FRAMES; i++) {
- I2O_REPLY_WRITE32(c,m);
- mb();
- m += (MSG_FRAME_SIZE << 2);
- }
-
- return 0;
-}
-
-/*
- * Get the IOP's Logical Configuration Table
- */
-int i2o_lct_get(struct i2o_controller *c)
-{
- u32 msg[8];
- int ret, size = c->status_block->expected_lct_size;
-
- do {
- if (c->lct == NULL) {
- c->lct = pci_alloc_consistent(c->pdev, size, &c->lct_phys);
- if(c->lct == NULL) {
- printk(KERN_CRIT "%s: Lct Get failed. Out of memory.\n",
- c->name);
- return -ENOMEM;
- }
- }
- memset(c->lct, 0, size);
-
- msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6;
- msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID;
- /* msg[2] filled in i2o_post_wait */
- msg[3] = 0;
- msg[4] = 0xFFFFFFFF; /* All devices */
- msg[5] = 0x00000000; /* Report now */
- msg[6] = 0xD0000000|size;
- msg[7] = c->lct_phys;
-
- ret=i2o_post_wait_mem(c, msg, sizeof(msg), 120, c->lct, NULL, c->lct_phys, 0, size, 0);
-
- if(ret == -ETIMEDOUT)
- {
- c->lct = NULL;
- return ret;
- }
-
- if(ret<0)
- {
- printk(KERN_ERR "%s: LCT Get failed (status=%#x.\n",
- c->name, -ret);
- return ret;
- }
-
- if (c->lct->table_size << 2 > size) {
- int new_size = c->lct->table_size << 2;
- pci_free_consistent(c->pdev, size, c->lct, c->lct_phys);
- size = new_size;
- c->lct = NULL;
- }
- } while (c->lct == NULL);
-
- if ((ret=i2o_parse_lct(c)) < 0)
- return ret;
-
- return 0;
-}
-
-/*
- * Like above, but used for async notification. The main
- * difference is that we keep track of the CurrentChangeIndiicator
- * so that we only get updates when it actually changes.
- *
- */
-int i2o_lct_notify(struct i2o_controller *c)
-{
- u32 msg[8];
-
- msg[0] = EIGHT_WORD_MSG_SIZE|SGL_OFFSET_6;
- msg[1] = I2O_CMD_LCT_NOTIFY<<24 | HOST_TID<<12 | ADAPTER_TID;
- msg[2] = core_context;
- msg[3] = 0xDEADBEEF;
- msg[4] = 0xFFFFFFFF; /* All devices */
- msg[5] = c->dlct->change_ind+1; /* Next change */
- msg[6] = 0xD0000000|8192;
- msg[7] = c->dlct_phys;
-
- return i2o_post_this(c, msg, sizeof(msg));
-}
-
-/*
- * Bring a controller online into OPERATIONAL state.
- */
-
-int i2o_online_controller(struct i2o_controller *iop)
-{
- u32 v;
-
- if (i2o_systab_send(iop) < 0)
- return -1;
-
- /* In READY state */
-
- dprintk(KERN_INFO "%s: Attempting to enable...\n", iop->name);
- if (i2o_enable_controller(iop) < 0)
- return -1;
-
- /* In OPERATIONAL state */
-
- dprintk(KERN_INFO "%s: Attempting to get/parse lct...\n", iop->name);
- if (i2o_lct_get(iop) < 0)
- return -1;
-
- /* Check battery status */
-
- iop->battery = 0;
- if(i2o_query_scalar(iop, ADAPTER_TID, 0x0000, 4, &v, 4)>=0)
- {
- if(v&16)
- iop->battery = 1;
- }
-
- return 0;
-}
-
-/*
- * Build system table
- *
- * The system table contains information about all the IOPs in the
- * system (duh) and is used by the Executives on the IOPs to establish
- * peer2peer connections. We're not supporting peer2peer at the moment,
- * but this will be needed down the road for things like lan2lan forwarding.
- */
-static int i2o_build_sys_table(void)
-{
- struct i2o_controller *iop = NULL;
- struct i2o_controller *niop = NULL;
- int count = 0;
-
- sys_tbl_len = sizeof(struct i2o_sys_tbl) + // Header + IOPs
- (i2o_num_controllers) *
- sizeof(struct i2o_sys_tbl_entry);
-
- if(sys_tbl)
- kfree(sys_tbl);
-
- sys_tbl = kmalloc(sys_tbl_len, GFP_KERNEL);
- if(!sys_tbl) {
- printk(KERN_CRIT "SysTab Set failed. Out of memory.\n");
- return -ENOMEM;
- }
- memset((void*)sys_tbl, 0, sys_tbl_len);
-
- sys_tbl->num_entries = i2o_num_controllers;
- sys_tbl->version = I2OVERSION; /* TODO: Version 2.0 */
- sys_tbl->change_ind = sys_tbl_ind++;
-
- for(iop = i2o_controller_chain; iop; iop = niop)
- {
- niop = iop->next;
-
- /*
- * Get updated IOP state so we have the latest information
- *
- * We should delete the controller at this point if it
- * doesn't respond since if it's not on the system table
- * it is techninically not part of the I2O subsy�tem...
- */
- if(i2o_status_get(iop)) {
- printk(KERN_ERR "%s: Deleting b/c could not get status while"
- "attempting to build system table\n", iop->name);
- i2o_delete_controller(iop);
- sys_tbl->num_entries--;
- continue; // try the next one
- }
-
- sys_tbl->iops[count].org_id = iop->status_block->org_id;
- sys_tbl->iops[count].iop_id = iop->unit + 2;
- sys_tbl->iops[count].seg_num = 0;
- sys_tbl->iops[count].i2o_version =
- iop->status_block->i2o_version;
- sys_tbl->iops[count].iop_state =
- iop->status_block->iop_state;
- sys_tbl->iops[count].msg_type =
- iop->status_block->msg_type;
- sys_tbl->iops[count].frame_size =
- iop->status_block->inbound_frame_size;
- sys_tbl->iops[count].last_changed = sys_tbl_ind - 1; // ??
- sys_tbl->iops[count].iop_capabilities =
- iop->status_block->iop_capabilities;
- sys_tbl->iops[count].inbound_low = (u32)iop->post_port;
- sys_tbl->iops[count].inbound_high = 0; // FIXME: 64-bit support
-
- count++;
- }
-
-#ifdef DRIVERDEBUG
-{
- u32 *table;
- table = (u32*)sys_tbl;
- for(count = 0; count < (sys_tbl_len >>2); count++)
- printk(KERN_INFO "sys_tbl[%d] = %0#10x\n", count, table[count]);
-}
-#endif
-
- return 0;
-}
-
-
-/*
- * Run time support routines
- */
-
-/*
- * Generic "post and forget" helpers. This is less efficient - we do
- * a memcpy for example that isnt strictly needed, but for most uses
- * this is simply not worth optimising
- */
-
-int i2o_post_this(struct i2o_controller *c, u32 *data, int len)
-{
- u32 m;
- u32 *msg;
- unsigned long t=jiffies;
-
- do
- {
- mb();
- m = I2O_POST_READ32(c);
- }
- while(m==0xFFFFFFFF && (jiffies-t)<HZ);
-
- if(m==0xFFFFFFFF)
- {
- printk(KERN_ERR "%s: Timeout waiting for message frame!\n",
- c->name);
- return -ETIMEDOUT;
- }
- msg = (u32 *)(c->msg_virt + m);
- memcpy_toio(msg, data, len);
- i2o_post_message(c,m);
- return 0;
-}
-
-/**
- * i2o_post_wait_mem - I2O query/reply with DMA buffers
- * @c: controller
- * @msg: message to send
- * @len: length of message
- * @timeout: time in seconds to wait
- * @mem1: attached memory buffer 1
- * @mem2: attached memory buffer 2
- * @phys1: physical address of buffer 1
- * @phys2: physical address of buffer 2
- * @size1: size of buffer 1
- * @size2: size of buffer 2
- *
- * This core API allows an OSM to post a message and then be told whether
- * or not the system received a successful reply.
- *
- * If the message times out then the value '-ETIMEDOUT' is returned. This
- * is a special case. In this situation the message may (should) complete
- * at an indefinite time in the future. When it completes it will use the
- * memory buffers attached to the request. If -ETIMEDOUT is returned then
- * the memory buffers must not be freed. Instead the event completion will
- * free them for you. In all other cases the buffers are your problem.
- *
- * Pass NULL for unneeded buffers.
- */
-
-int i2o_post_wait_mem(struct i2o_controller *c, u32 *msg, int len, int timeout, void *mem1, void *mem2, dma_addr_t phys1, dma_addr_t phys2, int size1, int size2)
-{
- DECLARE_WAIT_QUEUE_HEAD(wq_i2o_post);
- DECLARE_WAITQUEUE(wait, current);
- int complete = 0;
- int status;
- unsigned long flags = 0;
- struct i2o_post_wait_data *wait_data =
- kmalloc(sizeof(struct i2o_post_wait_data), GFP_KERNEL);
-
- if(!wait_data)
- return -ENOMEM;
-
- /*
- * Create a new notification object
- */
- wait_data->status = &status;
- wait_data->complete = &complete;
- wait_data->mem[0] = mem1;
- wait_data->mem[1] = mem2;
- wait_data->phys[0] = phys1;
- wait_data->phys[1] = phys2;
- wait_data->size[0] = size1;
- wait_data->size[1] = size2;
-
- /*
- * Queue the event with its unique id
- */
- spin_lock_irqsave(&post_wait_lock, flags);
-
- wait_data->next = post_wait_queue;
- post_wait_queue = wait_data;
- wait_data->id = (++post_wait_id) & 0x7fff;
- wait_data->wq = &wq_i2o_post;
-
- spin_unlock_irqrestore(&post_wait_lock, flags);
-
- /*
- * Fill in the message id
- */
-
- msg[2] = 0x80000000|(u32)core_context|((u32)wait_data->id<<16);
-
- /*
- * Post the message to the controller. At some point later it
- * will return. If we time out before it returns then
- * complete will be zero. From the point post_this returns
- * the wait_data may have been deleted.
- */
-
- add_wait_queue(&wq_i2o_post, &wait);
- set_current_state(TASK_INTERRUPTIBLE);
- if ((status = i2o_post_this(c, msg, len))==0) {
- schedule_timeout(HZ * timeout);
- }
- else
- {
- remove_wait_queue(&wq_i2o_post, &wait);
- return -EIO;
- }
- remove_wait_queue(&wq_i2o_post, &wait);
-
- if(signal_pending(current))
- status = -EINTR;
-
- spin_lock_irqsave(&post_wait_lock, flags);
- barrier(); /* Be sure we see complete as it is locked */
- if(!complete)
- {
- /*
- * Mark the entry dead. We cannot remove it. This is important.
- * When it does terminate (which it must do if the controller hasnt
- * died..) then it will otherwise scribble on stuff.
- * !complete lets us safely check if the entry is still
- * allocated and thus we can write into it
- */
- wait_data->wq = NULL;
- status = -ETIMEDOUT;
- }
- else
- {
- /* Debugging check - remove me soon */
- if(status == -ETIMEDOUT)
- {
- printk("TIMEDOUT BUG!\n");
- status = -EIO;
- }
- }
- /* And the wait_data is not leaked either! */
- spin_unlock_irqrestore(&post_wait_lock, flags);
- return status;
-}
-
-/**
- * i2o_post_wait - I2O query/reply
- * @c: controller
- * @msg: message to send
- * @len: length of message
- * @timeout: time in seconds to wait
- *
- * This core API allows an OSM to post a message and then be told whether
- * or not the system received a successful reply.
- */
-
-int i2o_post_wait(struct i2o_controller *c, u32 *msg, int len, int timeout)
-{
- return i2o_post_wait_mem(c, msg, len, timeout, NULL, NULL, 0, 0, 0, 0);
-}
-
-/*
- * i2o_post_wait is completed and we want to wake up the
- * sleeping proccess. Called by core's reply handler.
- */
-
-static void i2o_post_wait_complete(struct i2o_controller *c, u32 context, int status)
-{
- struct i2o_post_wait_data **p1, *q;
- unsigned long flags;
-
- /*
- * We need to search through the post_wait
- * queue to see if the given message is still
- * outstanding. If not, it means that the IOP
- * took longer to respond to the message than we
- * had allowed and timer has already expired.
- * Not much we can do about that except log
- * it for debug purposes, increase timeout, and recompile
- *
- * Lock needed to keep anyone from moving queue pointers
- * around while we're looking through them.
- */
-
- spin_lock_irqsave(&post_wait_lock, flags);
-
- for(p1 = &post_wait_queue; *p1!=NULL; p1 = &((*p1)->next))
- {
- q = (*p1);
- if(q->id == ((context >> 16) & 0x7fff)) {
- /*
- * Delete it
- */
-
- *p1 = q->next;
-
- /*
- * Live or dead ?
- */
-
- if(q->wq)
- {
- /* Live entry - wakeup and set status */
- *q->status = status;
- *q->complete = 1;
- wake_up(q->wq);
- }
- else
- {
- /*
- * Free resources. Caller is dead
- */
-
- if(q->mem[0])
- pci_free_consistent(c->pdev, q->size[0], q->mem[0], q->phys[0]);
- if(q->mem[1])
- pci_free_consistent(c->pdev, q->size[1], q->mem[1], q->phys[1]);
-
- printk(KERN_WARNING "i2o_post_wait event completed after timeout.\n");
- }
- kfree(q);
- spin_unlock(&post_wait_lock);
- return;
- }
- }
- spin_unlock(&post_wait_lock);
-
- printk(KERN_DEBUG "i2o_post_wait: Bogus reply!\n");
-}
-
-/* Issue UTIL_PARAMS_GET or UTIL_PARAMS_SET
- *
- * This function can be used for all UtilParamsGet/Set operations.
- * The OperationList is given in oplist-buffer,
- * and results are returned in reslist-buffer.
- * Note that the minimum sized reslist is 8 bytes and contains
- * ResultCount, ErrorInfoSize, BlockStatus and BlockSize.
- */
-
-int i2o_issue_params(int cmd, struct i2o_controller *iop, int tid,
- void *oplist, int oplen, void *reslist, int reslen)
-{
- u32 msg[9];
- u32 *res32 = (u32*)reslist;
- u32 *restmp = (u32*)reslist;
- int len = 0;
- int i = 0;
- int wait_status;
- u32 *opmem, *resmem;
- dma_addr_t opmem_phys, resmem_phys;
-
- /* Get DMAable memory */
- opmem = pci_alloc_consistent(iop->pdev, oplen, &opmem_phys);
- if(opmem == NULL)
- return -ENOMEM;
- memcpy(opmem, oplist, oplen);
-
- resmem = pci_alloc_consistent(iop->pdev, reslen, &resmem_phys);
- if(resmem == NULL)
- {
- pci_free_consistent(iop->pdev, oplen, opmem, opmem_phys);
- return -ENOMEM;
- }
-
- msg[0] = NINE_WORD_MSG_SIZE | SGL_OFFSET_5;
- msg[1] = cmd << 24 | HOST_TID << 12 | tid;
- msg[3] = 0;
- msg[4] = 0;
- msg[5] = 0x54000000 | oplen; /* OperationList */
- msg[6] = opmem_phys;
- msg[7] = 0xD0000000 | reslen; /* ResultList */
- msg[8] = resmem_phys;
-
- wait_status = i2o_post_wait_mem(iop, msg, sizeof(msg), 10, opmem, resmem, opmem_phys, resmem_phys, oplen, reslen);
-
- /*
- * This only looks like a memory leak - don't "fix" it.
- */
- if(wait_status == -ETIMEDOUT)
- return wait_status;
-
- memcpy(reslist, resmem, reslen);
- pci_free_consistent(iop->pdev, reslen, resmem, resmem_phys);
- pci_free_consistent(iop->pdev, oplen, opmem, opmem_phys);
-
- /* Query failed */
- if(wait_status != 0)
- return wait_status;
- /*
- * Calculate number of bytes of Result LIST
- * We need to loop through each Result BLOCK and grab the length
- */
- restmp = res32 + 1;
- len = 1;
- for(i = 0; i < (res32[0]&0X0000FFFF); i++)
- {
- if(restmp[0]&0x00FF0000) /* BlockStatus != SUCCESS */
- {
- printk(KERN_WARNING "%s - Error:\n ErrorInfoSize = 0x%02x, "
- "BlockStatus = 0x%02x, BlockSize = 0x%04x\n",
- (cmd == I2O_CMD_UTIL_PARAMS_SET) ? "PARAMS_SET"
- : "PARAMS_GET",
- res32[1]>>24, (res32[1]>>16)&0xFF, res32[1]&0xFFFF);
-
- /*
- * If this is the only request,than we return an error
- */
- if((res32[0]&0x0000FFFF) == 1)
- {
- return -((res32[1] >> 16) & 0xFF); /* -BlockStatus */
- }
- }
- len += restmp[0] & 0x0000FFFF; /* Length of res BLOCK */
- restmp += restmp[0] & 0x0000FFFF; /* Skip to next BLOCK */
- }
- return (len << 2); /* bytes used by result list */
-}
-
-/*
- * Query one scalar group value or a whole scalar group.
- */
-int i2o_query_scalar(struct i2o_controller *iop, int tid,
- int group, int field, void *buf, int buflen)
-{
- u16 opblk[] = { 1, 0, I2O_PARAMS_FIELD_GET, group, 1, field };
- u8 resblk[8+buflen]; /* 8 bytes for header */
- int size;
-
- if (field == -1) /* whole group */
- opblk[4] = -1;
-
- size = i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET, iop, tid,
- opblk, sizeof(opblk), resblk, sizeof(resblk));
-
- memcpy(buf, resblk+8, buflen); /* cut off header */
-
- if(size>buflen)
- return buflen;
- return size;
-}
-
-/*
- * Set a scalar group value or a whole group.
- */
-int i2o_set_scalar(struct i2o_controller *iop, int tid,
- int group, int field, void *buf, int buflen)
-{
- u16 *opblk;
- u8 resblk[8+buflen]; /* 8 bytes for header */
- int size;
-
- opblk = kmalloc(buflen+64, GFP_KERNEL);
- if (opblk == NULL)
- {
- printk(KERN_ERR "i2o: no memory for operation buffer.\n");
- return -ENOMEM;
- }
-
- opblk[0] = 1; /* operation count */
- opblk[1] = 0; /* pad */
- opblk[2] = I2O_PARAMS_FIELD_SET;
- opblk[3] = group;
-
- if(field == -1) { /* whole group */
- opblk[4] = -1;
- memcpy(opblk+5, buf, buflen);
- }
- else /* single field */
- {
- opblk[4] = 1;
- opblk[5] = field;
- memcpy(opblk+6, buf, buflen);
- }
-
- size = i2o_issue_params(I2O_CMD_UTIL_PARAMS_SET, iop, tid,
- opblk, 12+buflen, resblk, sizeof(resblk));
-
- kfree(opblk);
- if(size>buflen)
- return buflen;
- return size;
-}
-
-/*
- * if oper == I2O_PARAMS_TABLE_GET, get from all rows
- * if fieldcount == -1 return all fields
- * ibuf and ibuflen are unused (use NULL, 0)
- * else return specific fields
- * ibuf contains fieldindexes
- *
- * if oper == I2O_PARAMS_LIST_GET, get from specific rows
- * if fieldcount == -1 return all fields
- * ibuf contains rowcount, keyvalues
- * else return specific fields
- * fieldcount is # of fieldindexes
- * ibuf contains fieldindexes, rowcount, keyvalues
- *
- * You could also use directly function i2o_issue_params().
- */
-int i2o_query_table(int oper, struct i2o_controller *iop, int tid, int group,
- int fieldcount, void *ibuf, int ibuflen,
- void *resblk, int reslen)
-{
- u16 *opblk;
- int size;
-
- opblk = kmalloc(10 + ibuflen, GFP_KERNEL);
- if (opblk == NULL)
- {
- printk(KERN_ERR "i2o: no memory for query buffer.\n");
- return -ENOMEM;
- }
-
- opblk[0] = 1; /* operation count */
- opblk[1] = 0; /* pad */
- opblk[2] = oper;
- opblk[3] = group;
- opblk[4] = fieldcount;
- memcpy(opblk+5, ibuf, ibuflen); /* other params */
-
- size = i2o_issue_params(I2O_CMD_UTIL_PARAMS_GET,iop, tid,
- opblk, 10+ibuflen, resblk, reslen);
-
- kfree(opblk);
- if(size>reslen)
- return reslen;
- return size;
-}
-
-/*
- * Clear table group, i.e. delete all rows.
- */
-int i2o_clear_table(struct i2o_controller *iop, int tid, int group)
-{
- u16 opblk[] = { 1, 0, I2O_PARAMS_TABLE_CLEAR, group };
- u8 resblk[32]; /* min 8 bytes for result header */
-
- return i2o_issue_params(I2O_CMD_UTIL_PARAMS_SET, iop, tid,
- opblk, sizeof(opblk), resblk, sizeof(resblk));
-}
-
-/*
- * Add a new row into a table group.
- *
- * if fieldcount==-1 then we add whole rows
- * buf contains rowcount, keyvalues
- * else just specific fields are given, rest use defaults
- * buf contains fieldindexes, rowcount, keyvalues
- */
-int i2o_row_add_table(struct i2o_controller *iop, int tid,
- int group, int fieldcount, void *buf, int buflen)
-{
- u16 *opblk;
- u8 resblk[32]; /* min 8 bytes for header */
- int size;
-
- opblk = kmalloc(buflen+64, GFP_KERNEL);
- if (opblk == NULL)
- {
- printk(KERN_ERR "i2o: no memory for operation buffer.\n");
- return -ENOMEM;
- }
-
- opblk[0] = 1; /* operation count */
- opblk[1] = 0; /* pad */
- opblk[2] = I2O_PARAMS_ROW_ADD;
- opblk[3] = group;
- opblk[4] = fieldcount;
- memcpy(opblk+5, buf, buflen);
-
- size = i2o_issue_params(I2O_CMD_UTIL_PARAMS_SET, iop, tid,
- opblk, 10+buflen, resblk, sizeof(resblk));
-
- kfree(opblk);
- if(size>buflen)
- return buflen;
- return size;
-}
-
-
-/*
- * Used for error reporting/debugging purposes.
- * Following fail status are common to all classes.
- * The preserved message must be handled in the reply handler.
- */
-void i2o_report_fail_status(u8 req_status, u32* msg)
-{
- static char *FAIL_STATUS[] = {
- "0x80", /* not used */
- "SERVICE_SUSPENDED", /* 0x81 */
- "SERVICE_TERMINATED", /* 0x82 */
- "CONGESTION",
- "FAILURE",
- "STATE_ERROR",
- "TIME_OUT",
- "ROUTING_FAILURE",
- "INVALID_VERSION",
- "INVALID_OFFSET",
- "INVALID_MSG_FLAGS",
- "FRAME_TOO_SMALL",
- "FRAME_TOO_LARGE",
- "INVALID_TARGET_ID",
- "INVALID_INITIATOR_ID",
- "INVALID_INITIATOR_CONTEX", /* 0x8F */
- "UNKNOWN_FAILURE" /* 0xFF */
- };
-
- if (req_status == I2O_FSC_TRANSPORT_UNKNOWN_FAILURE)
- printk("TRANSPORT_UNKNOWN_FAILURE (%0#2x)\n.", req_status);
- else
- printk("TRANSPORT_%s.\n", FAIL_STATUS[req_status & 0x0F]);
-
- /* Dump some details */
-
- printk(KERN_ERR " InitiatorId = %d, TargetId = %d\n",
- (msg[1] >> 12) & 0xFFF, msg[1] & 0xFFF);
- printk(KERN_ERR " LowestVersion = 0x%02X, HighestVersion = 0x%02X\n",
- (msg[4] >> 8) & 0xFF, msg[4] & 0xFF);
- printk(KERN_ERR " FailingHostUnit = 0x%04X, FailingIOP = 0x%03X\n",
- msg[5] >> 16, msg[5] & 0xFFF);
-
- printk(KERN_ERR " Severity: 0x%02X ", (msg[4] >> 16) & 0xFF);
- if (msg[4] & (1<<16))
- printk("(FormatError), "
- "this msg can never be delivered/processed.\n");
- if (msg[4] & (1<<17))
- printk("(PathError), "
- "this msg can no longer be delivered/processed.\n");
- if (msg[4] & (1<<18))
- printk("(PathState), "
- "the system state does not allow delivery.\n");
- if (msg[4] & (1<<19))
- printk("(Congestion), resources temporarily not available;"
- "do not retry immediately.\n");
-}
-
-/*
- * Used for error reporting/debugging purposes.
- * Following reply status are common to all classes.
- */
-void i2o_report_common_status(u8 req_status)
-{
- static char *REPLY_STATUS[] = {
- "SUCCESS",
- "ABORT_DIRTY",
- "ABORT_NO_DATA_TRANSFER",
- "ABORT_PARTIAL_TRANSFER",
- "ERROR_DIRTY",
- "ERROR_NO_DATA_TRANSFER",
- "ERROR_PARTIAL_TRANSFER",
- "PROCESS_ABORT_DIRTY",
- "PROCESS_ABORT_NO_DATA_TRANSFER",
- "PROCESS_ABORT_PARTIAL_TRANSFER",
- "TRANSACTION_ERROR",
- "PROGRESS_REPORT"
- };
-
- if (req_status >= ARRAY_SIZE(REPLY_STATUS))
- printk("RequestStatus = %0#2x", req_status);
- else
- printk("%s", REPLY_STATUS[req_status]);
-}
-
-/*
- * Used for error reporting/debugging purposes.
- * Following detailed status are valid for executive class,
- * utility class, DDM class and for transaction error replies.
- */
-static void i2o_report_common_dsc(u16 detailed_status)
-{
- static char *COMMON_DSC[] = {
- "SUCCESS",
- "0x01", // not used
- "BAD_KEY",
- "TCL_ERROR",
- "REPLY_BUFFER_FULL",
- "NO_SUCH_PAGE",
- "INSUFFICIENT_RESOURCE_SOFT",
- "INSUFFICIENT_RESOURCE_HARD",
- "0x08", // not used
- "CHAIN_BUFFER_TOO_LARGE",
- "UNSUPPORTED_FUNCTION",
- "DEVICE_LOCKED",
- "DEVICE_RESET",
- "INAPPROPRIATE_FUNCTION",
- "INVALID_INITIATOR_ADDRESS",
- "INVALID_MESSAGE_FLAGS",
- "INVALID_OFFSET",
- "INVALID_PARAMETER",
- "INVALID_REQUEST",
- "INVALID_TARGET_ADDRESS",
- "MESSAGE_TOO_LARGE",
- "MESSAGE_TOO_SMALL",
- "MISSING_PARAMETER",
- "TIMEOUT",
- "UNKNOWN_ERROR",
- "UNKNOWN_FUNCTION",
- "UNSUPPORTED_VERSION",
- "DEVICE_BUSY",
- "DEVICE_NOT_AVAILABLE"
- };
-
- if (detailed_status > I2O_DSC_DEVICE_NOT_AVAILABLE)
- printk(" / DetailedStatus = %0#4x.\n", detailed_status);
- else
- printk(" / %s.\n", COMMON_DSC[detailed_status]);
-}
-
-/*
- * Used for error reporting/debugging purposes
- */
-static void i2o_report_lan_dsc(u16 detailed_status)
-{
- static char *LAN_DSC[] = { // Lan detailed status code strings
- "SUCCESS",
- "DEVICE_FAILURE",
- "DESTINATION_NOT_FOUND",
- "TRANSMIT_ERROR",
- "TRANSMIT_ABORTED",
- "RECEIVE_ERROR",
- "RECEIVE_ABORTED",
- "DMA_ERROR",
- "BAD_PACKET_DETECTED",
- "OUT_OF_MEMORY",
- "BUCKET_OVERRUN",
- "IOP_INTERNAL_ERROR",
- "CANCELED",
- "INVALID_TRANSACTION_CONTEXT",
- "DEST_ADDRESS_DETECTED",
- "DEST_ADDRESS_OMITTED",
- "PARTIAL_PACKET_RETURNED",
- "TEMP_SUSPENDED_STATE", // last Lan detailed status code
- "INVALID_REQUEST" // general detailed status code
- };
-
- if (detailed_status > I2O_DSC_INVALID_REQUEST)
- printk(" / %0#4x.\n", detailed_status);
- else
- printk(" / %s.\n", LAN_DSC[detailed_status]);
-}
-
-/*
- * Used for error reporting/debugging purposes
- */
-static void i2o_report_util_cmd(u8 cmd)
-{
- switch (cmd) {
- case I2O_CMD_UTIL_NOP:
- printk("UTIL_NOP, ");
- break;
- case I2O_CMD_UTIL_ABORT:
- printk("UTIL_ABORT, ");
- break;
- case I2O_CMD_UTIL_CLAIM:
- printk("UTIL_CLAIM, ");
- break;
- case I2O_CMD_UTIL_RELEASE:
- printk("UTIL_CLAIM_RELEASE, ");
- break;
- case I2O_CMD_UTIL_CONFIG_DIALOG:
- printk("UTIL_CONFIG_DIALOG, ");
- break;
- case I2O_CMD_UTIL_DEVICE_RESERVE:
- printk("UTIL_DEVICE_RESERVE, ");
- break;
- case I2O_CMD_UTIL_DEVICE_RELEASE:
- printk("UTIL_DEVICE_RELEASE, ");
- break;
- case I2O_CMD_UTIL_EVT_ACK:
- printk("UTIL_EVENT_ACKNOWLEDGE, ");
- break;
- case I2O_CMD_UTIL_EVT_REGISTER:
- printk("UTIL_EVENT_REGISTER, ");
- break;
- case I2O_CMD_UTIL_LOCK:
- printk("UTIL_LOCK, ");
- break;
- case I2O_CMD_UTIL_LOCK_RELEASE:
- printk("UTIL_LOCK_RELEASE, ");
- break;
- case I2O_CMD_UTIL_PARAMS_GET:
- printk("UTIL_PARAMS_GET, ");
- break;
- case I2O_CMD_UTIL_PARAMS_SET:
- printk("UTIL_PARAMS_SET, ");
- break;
- case I2O_CMD_UTIL_REPLY_FAULT_NOTIFY:
- printk("UTIL_REPLY_FAULT_NOTIFY, ");
- break;
- default:
- printk("Cmd = %0#2x, ",cmd);
- }
-}
-
-/*
- * Used for error reporting/debugging purposes
- */
-static void i2o_report_exec_cmd(u8 cmd)
-{
- switch (cmd) {
- case I2O_CMD_ADAPTER_ASSIGN:
- printk("EXEC_ADAPTER_ASSIGN, ");
- break;
- case I2O_CMD_ADAPTER_READ:
- printk("EXEC_ADAPTER_READ, ");
- break;
- case I2O_CMD_ADAPTER_RELEASE:
- printk("EXEC_ADAPTER_RELEASE, ");
- break;
- case I2O_CMD_BIOS_INFO_SET:
- printk("EXEC_BIOS_INFO_SET, ");
- break;
- case I2O_CMD_BOOT_DEVICE_SET:
- printk("EXEC_BOOT_DEVICE_SET, ");
- break;
- case I2O_CMD_CONFIG_VALIDATE:
- printk("EXEC_CONFIG_VALIDATE, ");
- break;
- case I2O_CMD_CONN_SETUP:
- printk("EXEC_CONN_SETUP, ");
- break;
- case I2O_CMD_DDM_DESTROY:
- printk("EXEC_DDM_DESTROY, ");
- break;
- case I2O_CMD_DDM_ENABLE:
- printk("EXEC_DDM_ENABLE, ");
- break;
- case I2O_CMD_DDM_QUIESCE:
- printk("EXEC_DDM_QUIESCE, ");
- break;
- case I2O_CMD_DDM_RESET:
- printk("EXEC_DDM_RESET, ");
- break;
- case I2O_CMD_DDM_SUSPEND:
- printk("EXEC_DDM_SUSPEND, ");
- break;
- case I2O_CMD_DEVICE_ASSIGN:
- printk("EXEC_DEVICE_ASSIGN, ");
- break;
- case I2O_CMD_DEVICE_RELEASE:
- printk("EXEC_DEVICE_RELEASE, ");
- break;
- case I2O_CMD_HRT_GET:
- printk("EXEC_HRT_GET, ");
- break;
- case I2O_CMD_ADAPTER_CLEAR:
- printk("EXEC_IOP_CLEAR, ");
- break;
- case I2O_CMD_ADAPTER_CONNECT:
- printk("EXEC_IOP_CONNECT, ");
- break;
- case I2O_CMD_ADAPTER_RESET:
- printk("EXEC_IOP_RESET, ");
- break;
- case I2O_CMD_LCT_NOTIFY:
- printk("EXEC_LCT_NOTIFY, ");
- break;
- case I2O_CMD_OUTBOUND_INIT:
- printk("EXEC_OUTBOUND_INIT, ");
- break;
- case I2O_CMD_PATH_ENABLE:
- printk("EXEC_PATH_ENABLE, ");
- break;
- case I2O_CMD_PATH_QUIESCE:
- printk("EXEC_PATH_QUIESCE, ");
- break;
- case I2O_CMD_PATH_RESET:
- printk("EXEC_PATH_RESET, ");
- break;
- case I2O_CMD_STATIC_MF_CREATE:
- printk("EXEC_STATIC_MF_CREATE, ");
- break;
- case I2O_CMD_STATIC_MF_RELEASE:
- printk("EXEC_STATIC_MF_RELEASE, ");
- break;
- case I2O_CMD_STATUS_GET:
- printk("EXEC_STATUS_GET, ");
- break;
- case I2O_CMD_SW_DOWNLOAD:
- printk("EXEC_SW_DOWNLOAD, ");
- break;
- case I2O_CMD_SW_UPLOAD:
- printk("EXEC_SW_UPLOAD, ");
- break;
- case I2O_CMD_SW_REMOVE:
- printk("EXEC_SW_REMOVE, ");
- break;
- case I2O_CMD_SYS_ENABLE:
- printk("EXEC_SYS_ENABLE, ");
- break;
- case I2O_CMD_SYS_MODIFY:
- printk("EXEC_SYS_MODIFY, ");
- break;
- case I2O_CMD_SYS_QUIESCE:
- printk("EXEC_SYS_QUIESCE, ");
- break;
- case I2O_CMD_SYS_TAB_SET:
- printk("EXEC_SYS_TAB_SET, ");
- break;
- default:
- printk("Cmd = %#02x, ",cmd);
- }
-}
-
-/*
- * Used for error reporting/debugging purposes
- */
-static void i2o_report_lan_cmd(u8 cmd)
-{
- switch (cmd) {
- case LAN_PACKET_SEND:
- printk("LAN_PACKET_SEND, ");
- break;
- case LAN_SDU_SEND:
- printk("LAN_SDU_SEND, ");
- break;
- case LAN_RECEIVE_POST:
- printk("LAN_RECEIVE_POST, ");
- break;
- case LAN_RESET:
- printk("LAN_RESET, ");
- break;
- case LAN_SUSPEND:
- printk("LAN_SUSPEND, ");
- break;
- default:
- printk("Cmd = %0#2x, ",cmd);
- }
-}
-
-/*
- * Used for error reporting/debugging purposes.
- * Report Cmd name, Request status, Detailed Status.
- */
-void i2o_report_status(const char *severity, const char *str, u32 *msg)
-{
- u8 cmd = (msg[1]>>24)&0xFF;
- u8 req_status = (msg[4]>>24)&0xFF;
- u16 detailed_status = msg[4]&0xFFFF;
- struct i2o_handler *h = i2o_handlers[msg[2] & (MAX_I2O_MODULES-1)];
-
- if (cmd == I2O_CMD_UTIL_EVT_REGISTER)
- return; // No status in this reply
-
- printk("%s%s: ", severity, str);
-
- if (cmd < 0x1F) // Utility cmd
- i2o_report_util_cmd(cmd);
-
- else if (cmd >= 0xA0 && cmd <= 0xEF) // Executive cmd
- i2o_report_exec_cmd(cmd);
-
- else if (h->class == I2O_CLASS_LAN && cmd >= 0x30 && cmd <= 0x3F)
- i2o_report_lan_cmd(cmd); // LAN cmd
- else
- printk("Cmd = %0#2x, ", cmd); // Other cmds
-
- if (msg[0] & MSG_FAIL) {
- i2o_report_fail_status(req_status, msg);
- return;
- }
-
- i2o_report_common_status(req_status);
-
- if (cmd < 0x1F || (cmd >= 0xA0 && cmd <= 0xEF))
- i2o_report_common_dsc(detailed_status);
- else if (h->class == I2O_CLASS_LAN && cmd >= 0x30 && cmd <= 0x3F)
- i2o_report_lan_dsc(detailed_status);
- else
- printk(" / DetailedStatus = %0#4x.\n", detailed_status);
-}
-
-/* Used to dump a message to syslog during debugging */
-void i2o_dump_message(u32 *msg)
-{
-#ifdef DRIVERDEBUG
- int i;
- printk(KERN_INFO "Dumping I2O message size %d @ %p\n",
- msg[0]>>16&0xffff, msg);
- for(i = 0; i < ((msg[0]>>16)&0xffff); i++)
- printk(KERN_INFO " msg[%d] = %0#10x\n", i, msg[i]);
-#endif
-}
-
-/*
- * I2O reboot/shutdown notification.
- *
- * - Call each OSM's reboot notifier (if one exists)
- * - Quiesce each IOP in the system
- *
- * Each IOP has to be quiesced before we can ensure that the system
- * can be properly shutdown as a transaction that has already been
- * acknowledged still needs to be placed in permanent store on the IOP.
- * The SysQuiesce causes the IOP to force all HDMs to complete their
- * transactions before returning, so only at that point is it safe
- *
- */
-static int i2o_reboot_event(struct notifier_block *n, unsigned long code, void
-*p)
-{
- int i = 0;
- struct i2o_controller *c = NULL;
-
- if(code != SYS_RESTART && code != SYS_HALT && code != SYS_POWER_OFF)
- return NOTIFY_DONE;
-
- printk(KERN_INFO "Shutting down I2O system.\n");
- printk(KERN_INFO
- " This could take a few minutes if there are many devices attached\n");
-
- for(i = 0; i < MAX_I2O_MODULES; i++)
- {
- if(i2o_handlers[i] && i2o_handlers[i]->reboot_notify)
- i2o_handlers[i]->reboot_notify();
- }
-
- for(c = i2o_controller_chain; c; c = c->next)
- {
- if(i2o_quiesce_controller(c))
- {
- printk(KERN_WARNING "i2o: Could not quiesce %s.\n"
- "Verify setup on next system power up.\n",
- c->name);
- }
- }
-
- printk(KERN_INFO "I2O system down.\n");
- return NOTIFY_DONE;
-}
-
-
-
-
-/**
- * i2o_pci_dispose - Free bus specific resources
- * @c: I2O controller
- *
- * Disable interrupts and then free interrupt, I/O and mtrr resources
- * used by this controller. Called by the I2O core on unload.
- */
-
-static void i2o_pci_dispose(struct i2o_controller *c)
-{
- I2O_IRQ_WRITE32(c,0xFFFFFFFF);
- if(c->irq > 0)
- free_irq(c->irq, c);
- iounmap(c->base_virt);
- if(c->raptor)
- iounmap(c->msg_virt);
-
-#ifdef CONFIG_MTRR
- if(c->mtrr_reg0 > 0)
- mtrr_del(c->mtrr_reg0, 0, 0);
- if(c->mtrr_reg1 > 0)
- mtrr_del(c->mtrr_reg1, 0, 0);
-#endif
-}
-
-/**
- * i2o_pci_interrupt - Bus specific interrupt handler
- * @irq: interrupt line
- * @dev_id: cookie
- *
- * Handle an interrupt from a PCI based I2O controller. This turns out
- * to be rather simple. We keep the controller pointer in the cookie.
- */
-
-static irqreturn_t i2o_pci_interrupt(int irq, void *dev_id, struct pt_regs *r)
-{
- struct i2o_controller *c = dev_id;
- i2o_run_queue(c);
- return IRQ_HANDLED;
-}
-
-/**
- * i2o_pci_install - Install a PCI i2o controller
- * @dev: PCI device of the I2O controller
- *
- * Install a PCI (or in theory AGP) i2o controller. Devices are
- * initialized, configured and registered with the i2o core subsystem. Be
- * very careful with ordering. There may be pending interrupts.
- *
- * To Do: Add support for polled controllers
- */
-
-int __init i2o_pci_install(struct pci_dev *dev)
-{
- struct i2o_controller *c=kmalloc(sizeof(struct i2o_controller),
- GFP_KERNEL);
- void *bar0_virt;
- void *bar1_virt;
- unsigned long bar0_phys = 0;
- unsigned long bar1_phys = 0;
- unsigned long bar0_size = 0;
- unsigned long bar1_size = 0;
-
- int i;
-
- if(c==NULL)
- {
- printk(KERN_ERR "i2o: Insufficient memory to add controller.\n");
- return -ENOMEM;
- }
- memset(c, 0, sizeof(*c));
-
- c->irq = -1;
- c->dpt = 0;
- c->raptor = 0;
- c->short_req = 0;
- c->pdev = dev;
-
-#if BITS_PER_LONG == 64
- c->context_list_lock = SPIN_LOCK_UNLOCKED;
-#endif
-
- /*
- * Cards that fall apart if you hit them with large I/O
- * loads...
- */
-
- if(dev->vendor == PCI_VENDOR_ID_NCR && dev->device == 0x0630)
- {
- c->short_req = 1;
- printk(KERN_INFO "I2O: Symbios FC920 workarounds activated.\n");
- }
-
- if(dev->subsystem_vendor == PCI_VENDOR_ID_PROMISE)
- {
- c->promise = 1;
- printk(KERN_INFO "I2O: Promise workarounds activated.\n");
- }
-
- /*
- * Cards that go bananas if you quiesce them before you reset
- * them
- */
-
- if(dev->vendor == PCI_VENDOR_ID_DPT) {
- c->dpt=1;
- if(dev->device == 0xA511)
- c->raptor=1;
- }
-
- for(i=0; i<6; i++)
- {
- /* Skip I/O spaces */
- if(!(pci_resource_flags(dev, i) & IORESOURCE_IO))
- {
- if(!bar0_phys)
- {
- bar0_phys = pci_resource_start(dev, i);
- bar0_size = pci_resource_len(dev, i);
- if(!c->raptor)
- break;
- }
- else
- {
- bar1_phys = pci_resource_start(dev, i);
- bar1_size = pci_resource_len(dev, i);
- break;
- }
- }
- }
-
- if(i==6)
- {
- printk(KERN_ERR "i2o: I2O controller has no memory regions defined.\n");
- kfree(c);
- return -EINVAL;
- }
-
-
- /* Map the I2O controller */
- if(!c->raptor)
- printk(KERN_INFO "i2o: PCI I2O controller at %08lX size=%ld\n", bar0_phys, bar0_size);
- else
- printk(KERN_INFO "i2o: PCI I2O controller\n BAR0 at 0x%08lX size=%ld\n BAR1 at 0x%08lX size=%ld\n", bar0_phys, bar0_size, bar1_phys, bar1_size);
-
- bar0_virt = ioremap(bar0_phys, bar0_size);
- if(bar0_virt==0)
- {
- printk(KERN_ERR "i2o: Unable to map controller.\n");
- kfree(c);
- return -EINVAL;
- }
-
- if(c->raptor)
- {
- bar1_virt = ioremap(bar1_phys, bar1_size);
- if(bar1_virt==0)
- {
- printk(KERN_ERR "i2o: Unable to map controller.\n");
- kfree(c);
- iounmap(bar0_virt);
- return -EINVAL;
- }
- } else {
- bar1_virt = bar0_virt;
- bar1_phys = bar0_phys;
- bar1_size = bar0_size;
- }
-
- c->irq_mask = bar0_virt+0x34;
- c->post_port = bar0_virt+0x40;
- c->reply_port = bar0_virt+0x44;
-
- c->base_phys = bar0_phys;
- c->base_virt = bar0_virt;
- c->msg_phys = bar1_phys;
- c->msg_virt = bar1_virt;
-
- /*
- * Enable Write Combining MTRR for IOP's memory region
- */
-#ifdef CONFIG_MTRR
- c->mtrr_reg0 = mtrr_add(c->base_phys, bar0_size, MTRR_TYPE_WRCOMB, 1);
- /*
- * If it is an INTEL i960 I/O processor then set the first 64K to
- * Uncacheable since the region contains the Messaging unit which
- * shouldn't be cached.
- */
- c->mtrr_reg1 = -1;
- if(dev->vendor == PCI_VENDOR_ID_INTEL || dev->vendor == PCI_VENDOR_ID_DPT)
- {
- printk(KERN_INFO "I2O: MTRR workaround for Intel i960 processor\n");
- c->mtrr_reg1 = mtrr_add(c->base_phys, 65536, MTRR_TYPE_UNCACHABLE, 1);
- if(c->mtrr_reg1< 0)
- {
- printk(KERN_INFO "i2o_pci: Error in setting MTRR_TYPE_UNCACHABLE\n");
- mtrr_del(c->mtrr_reg0, c->msg_phys, bar1_size);
- c->mtrr_reg0 = -1;
- }
- }
- if(c->raptor)
- c->mtrr_reg1 = mtrr_add(c->msg_phys, bar1_size, MTRR_TYPE_WRCOMB, 1);
-
-#endif
-
- I2O_IRQ_WRITE32(c,0xFFFFFFFF);
-
- i = i2o_install_controller(c);
-
- if(i<0)
- {
- printk(KERN_ERR "i2o: Unable to install controller.\n");
- kfree(c);
- iounmap(bar0_virt);
- if(c->raptor)
- iounmap(bar1_virt);
- return i;
- }
-
- c->irq = dev->irq;
- if(c->irq)
- {
- i=request_irq(dev->irq, i2o_pci_interrupt, SA_SHIRQ,
- c->name, c);
- if(i<0)
- {
- printk(KERN_ERR "%s: unable to allocate interrupt %d.\n",
- c->name, dev->irq);
- c->irq = -1;
- i2o_delete_controller(c);
- iounmap(bar0_virt);
- if(c->raptor)
- iounmap(bar1_virt);
- return -EBUSY;
- }
- }
-
- printk(KERN_INFO "%s: Installed at IRQ%d\n", c->name, dev->irq);
- I2O_IRQ_WRITE32(c,0x0);
- c->enabled = 1;
- return 0;
-}
-
-/**
- * i2o_pci_scan - Scan the pci bus for controllers
- *
- * Scan the PCI devices on the system looking for any device which is a
- * memory of the Intelligent, I2O class. We attempt to set up each such device
- * and register it with the core.
- *
- * Returns the number of controllers registered
- *
- * Note; Do not change this to a hot plug interface. I2O 1.5 itself
- * does not support hot plugging.
- */
-
-int __init i2o_pci_scan(void)
-{
- struct pci_dev *dev = NULL;
- int count=0;
-
- printk(KERN_INFO "i2o: Checking for PCI I2O controllers...\n");
-
- while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL)
- {
- if((dev->class>>8)!=PCI_CLASS_INTELLIGENT_I2O &&
- (dev->vendor!=PCI_VENDOR_ID_DPT || dev->device!=0xA511))
- continue;
-
- if((dev->class>>8)==PCI_CLASS_INTELLIGENT_I2O &&
- (dev->class&0xFF)>1)
- {
- printk(KERN_INFO "i2o: I2O Controller found but does not support I2O 1.5 (skipping).\n");
- continue;
- }
- if (pci_enable_device(dev))
- continue;
- printk(KERN_INFO "i2o: I2O controller on bus %d at %d.\n",
- dev->bus->number, dev->devfn);
- if(pci_set_dma_mask(dev, 0xffffffff))
- {
- printk(KERN_WARNING "I2O controller on bus %d at %d : No suitable DMA available\n", dev->bus->number, dev->devfn);
- continue;
- }
- pci_set_master(dev);
- if(i2o_pci_install(dev)==0)
- count++;
- }
- if(count)
- printk(KERN_INFO "i2o: %d I2O controller%s found and installed.\n", count,
- count==1?"":"s");
- return count?count:-ENODEV;
-}
-
-static int i2o_core_init(void)
-{
- printk(KERN_INFO "I2O Core - (C) Copyright 1999 Red Hat Software\n");
- if (i2o_install_handler(&i2o_core_handler) < 0)
- {
- printk(KERN_ERR "i2o_core: Unable to install core handler.\nI2O stack not loaded!");
- return 0;
- }
-
- core_context = i2o_core_handler.context;
-
- /*
- * Initialize event handling thread
- */
-
- init_MUTEX_LOCKED(&evt_sem);
- evt_pid = kernel_thread(i2o_core_evt, &evt_reply, CLONE_SIGHAND);
- if(evt_pid < 0)
- {
- printk(KERN_ERR "I2O: Could not create event handler kernel thread\n");
- i2o_remove_handler(&i2o_core_handler);
- return 0;
- }
- else
- printk(KERN_INFO "I2O: Event thread created as pid %d\n", evt_pid);
-
- i2o_pci_scan();
- if(i2o_num_controllers)
- i2o_sys_init();
-
- register_reboot_notifier(&i2o_reboot_notifier);
-
- return 0;
-}
-
-static void i2o_core_exit(void)
-{
- int stat;
-
- unregister_reboot_notifier(&i2o_reboot_notifier);
-
- if(i2o_num_controllers)
- i2o_sys_shutdown();
-
- /*
- * If this is shutdown time, the thread has already been killed
- */
- if(evt_running) {
- printk("Terminating i2o threads...");
- stat = kill_proc(evt_pid, SIGKILL, 1);
- if(!stat) {
- printk("waiting...\n");
- wait_for_completion(&evt_dead);
- }
- printk("done.\n");
- }
- i2o_remove_handler(&i2o_core_handler);
-}
-
-module_init(i2o_core_init);
-module_exit(i2o_core_exit);
-
-MODULE_PARM(verbose, "i");
-MODULE_PARM_DESC(verbose, "Verbose diagnostics");
-
-MODULE_AUTHOR("Red Hat Software");
-MODULE_DESCRIPTION("I2O Core");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(i2o_controller_chain);
-EXPORT_SYMBOL(i2o_num_controllers);
-EXPORT_SYMBOL(i2o_find_controller);
-EXPORT_SYMBOL(i2o_unlock_controller);
-EXPORT_SYMBOL(i2o_status_get);
-EXPORT_SYMBOL(i2o_install_handler);
-EXPORT_SYMBOL(i2o_remove_handler);
-EXPORT_SYMBOL(i2o_install_controller);
-EXPORT_SYMBOL(i2o_delete_controller);
-EXPORT_SYMBOL(i2o_run_queue);
-EXPORT_SYMBOL(i2o_claim_device);
-EXPORT_SYMBOL(i2o_release_device);
-EXPORT_SYMBOL(i2o_device_notify_on);
-EXPORT_SYMBOL(i2o_device_notify_off);
-EXPORT_SYMBOL(i2o_post_this);
-EXPORT_SYMBOL(i2o_post_wait);
-EXPORT_SYMBOL(i2o_post_wait_mem);
-EXPORT_SYMBOL(i2o_query_scalar);
-EXPORT_SYMBOL(i2o_set_scalar);
-EXPORT_SYMBOL(i2o_query_table);
-EXPORT_SYMBOL(i2o_clear_table);
-EXPORT_SYMBOL(i2o_row_add_table);
-EXPORT_SYMBOL(i2o_issue_params);
-EXPORT_SYMBOL(i2o_event_register);
-EXPORT_SYMBOL(i2o_event_ack);
-EXPORT_SYMBOL(i2o_report_status);
-EXPORT_SYMBOL(i2o_dump_message);
-EXPORT_SYMBOL(i2o_get_class_name);
-EXPORT_SYMBOL(i2o_context_list_add);
-EXPORT_SYMBOL(i2o_context_list_get);
-EXPORT_SYMBOL(i2o_context_list_remove);
diff -L drivers/message/i2o/i2o_lan.h -puN drivers/message/i2o/i2o_lan.h~i2o-build_99 /dev/null
--- 25/drivers/message/i2o/i2o_lan.h
+++ /dev/null Thu Apr 11 07:25:15 2002
@@ -1,159 +0,0 @@
-/*
- * i2o_lan.h I2O LAN Class definitions
- *
- * I2O LAN CLASS OSM May 26th 2000
- *
- * (C) Copyright 1999, 2000 University of Helsinki,
- * Department of Computer Science
- *
- * This code is still under development / test.
- *
- * Author: Auvo H�kkinen <Auvo.Hakkinen@cs.Helsinki.FI>
- * Juha Siev�nen <Juha.Sievanen@cs.Helsinki.FI>
- * Taneli V�h�kangas <Taneli.Vahakangas@cs.Helsinki.FI>
- */
-
-#ifndef _I2O_LAN_H
-#define _I2O_LAN_H
-
-/* Default values for tunable parameters first */
-
-#define I2O_LAN_MAX_BUCKETS_OUT 96
-#define I2O_LAN_BUCKET_THRESH 18 /* 9 buckets in one message */
-#define I2O_LAN_RX_COPYBREAK 200
-#define I2O_LAN_TX_TIMEOUT (1*HZ)
-#define I2O_LAN_TX_BATCH_MODE 2 /* 2=automatic, 1=on, 0=off */
-#define I2O_LAN_EVENT_MASK 0 /* 0=None, 0xFFC00002=All */
-
-/* LAN types */
-#define I2O_LAN_ETHERNET 0x0030
-#define I2O_LAN_100VG 0x0040
-#define I2O_LAN_TR 0x0050
-#define I2O_LAN_FDDI 0x0060
-#define I2O_LAN_FIBRE_CHANNEL 0x0070
-#define I2O_LAN_UNKNOWN 0x00000000
-
-/* Connector types */
-
-/* Ethernet */
-#define I2O_LAN_AUI (I2O_LAN_ETHERNET << 4) + 0x00000001
-#define I2O_LAN_10BASE5 (I2O_LAN_ETHERNET << 4) + 0x00000002
-#define I2O_LAN_FIORL (I2O_LAN_ETHERNET << 4) + 0x00000003
-#define I2O_LAN_10BASE2 (I2O_LAN_ETHERNET << 4) + 0x00000004
-#define I2O_LAN_10BROAD36 (I2O_LAN_ETHERNET << 4) + 0x00000005
-#define I2O_LAN_10BASE_T (I2O_LAN_ETHERNET << 4) + 0x00000006
-#define I2O_LAN_10BASE_FP (I2O_LAN_ETHERNET << 4) + 0x00000007
-#define I2O_LAN_10BASE_FB (I2O_LAN_ETHERNET << 4) + 0x00000008
-#define I2O_LAN_10BASE_FL (I2O_LAN_ETHERNET << 4) + 0x00000009
-#define I2O_LAN_100BASE_TX (I2O_LAN_ETHERNET << 4) + 0x0000000A
-#define I2O_LAN_100BASE_FX (I2O_LAN_ETHERNET << 4) + 0x0000000B
-#define I2O_LAN_100BASE_T4 (I2O_LAN_ETHERNET << 4) + 0x0000000C
-#define I2O_LAN_1000BASE_SX (I2O_LAN_ETHERNET << 4) + 0x0000000D
-#define I2O_LAN_1000BASE_LX (I2O_LAN_ETHERNET << 4) + 0x0000000E
-#define I2O_LAN_1000BASE_CX (I2O_LAN_ETHERNET << 4) + 0x0000000F
-#define I2O_LAN_1000BASE_T (I2O_LAN_ETHERNET << 4) + 0x00000010
-
-/* AnyLAN */
-#define I2O_LAN_100VG_ETHERNET (I2O_LAN_100VG << 4) + 0x00000001
-#define I2O_LAN_100VG_TR (I2O_LAN_100VG << 4) + 0x00000002
-
-/* Token Ring */
-#define I2O_LAN_4MBIT (I2O_LAN_TR << 4) + 0x00000001
-#define I2O_LAN_16MBIT (I2O_LAN_TR << 4) + 0x00000002
-
-/* FDDI */
-#define I2O_LAN_125MBAUD (I2O_LAN_FDDI << 4) + 0x00000001
-
-/* Fibre Channel */
-#define I2O_LAN_POINT_POINT (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000001
-#define I2O_LAN_ARB_LOOP (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000002
-#define I2O_LAN_PUBLIC_LOOP (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000003
-#define I2O_LAN_FABRIC (I2O_LAN_FIBRE_CHANNEL << 4) + 0x00000004
-
-#define I2O_LAN_EMULATION 0x00000F00
-#define I2O_LAN_OTHER 0x00000F01
-#define I2O_LAN_DEFAULT 0xFFFFFFFF
-
-/* LAN class functions */
-
-#define LAN_PACKET_SEND 0x3B
-#define LAN_SDU_SEND 0x3D
-#define LAN_RECEIVE_POST 0x3E
-#define LAN_RESET 0x35
-#define LAN_SUSPEND 0x37
-
-/* LAN DetailedStatusCode defines */
-#define I2O_LAN_DSC_SUCCESS 0x00
-#define I2O_LAN_DSC_DEVICE_FAILURE 0x01
-#define I2O_LAN_DSC_DESTINATION_NOT_FOUND 0x02
-#define I2O_LAN_DSC_TRANSMIT_ERROR 0x03
-#define I2O_LAN_DSC_TRANSMIT_ABORTED 0x04
-#define I2O_LAN_DSC_RECEIVE_ERROR 0x05
-#define I2O_LAN_DSC_RECEIVE_ABORTED 0x06
-#define I2O_LAN_DSC_DMA_ERROR 0x07
-#define I2O_LAN_DSC_BAD_PACKET_DETECTED 0x08
-#define I2O_LAN_DSC_OUT_OF_MEMORY 0x09
-#define I2O_LAN_DSC_BUCKET_OVERRUN 0x0A
-#define I2O_LAN_DSC_IOP_INTERNAL_ERROR 0x0B
-#define I2O_LAN_DSC_CANCELED 0x0C
-#define I2O_LAN_DSC_INVALID_TRANSACTION_CONTEXT 0x0D
-#define I2O_LAN_DSC_DEST_ADDRESS_DETECTED 0x0E
-#define I2O_LAN_DSC_DEST_ADDRESS_OMITTED 0x0F
-#define I2O_LAN_DSC_PARTIAL_PACKET_RETURNED 0x10
-#define I2O_LAN_DSC_SUSPENDED 0x11
-
-struct i2o_packet_info {
- u32 offset : 24;
- u32 flags : 8;
- u32 len : 24;
- u32 status : 8;
-};
-
-struct i2o_bucket_descriptor {
- u32 context; /* FIXME: 64bit support */
- struct i2o_packet_info packet_info[1];
-};
-
-/* Event Indicator Mask Flags for LAN OSM */
-
-#define I2O_LAN_EVT_LINK_DOWN 0x01
-#define I2O_LAN_EVT_LINK_UP 0x02
-#define I2O_LAN_EVT_MEDIA_CHANGE 0x04
-
-#include <linux/netdevice.h>
-#include <linux/fddidevice.h>
-
-struct i2o_lan_local {
- u8 unit;
- struct i2o_device *i2o_dev;
-
- struct fddi_statistics stats; /* see also struct net_device_stats */
- unsigned short (*type_trans)(struct sk_buff *, struct net_device *);
- atomic_t buckets_out; /* nbr of unused buckets on DDM */
- atomic_t tx_out; /* outstanding TXes */
- u8 tx_count; /* packets in one TX message frame */
- u16 tx_max_out; /* DDM's Tx queue len */
- u8 sgl_max; /* max SGLs in one message frame */
- u32 m; /* IOP address of the batch msg frame */
-
- struct work_struct i2o_batch_send_task;
- int send_active;
- struct sk_buff **i2o_fbl; /* Free bucket list (to reuse skbs) */
- int i2o_fbl_tail;
- spinlock_t fbl_lock;
-
- spinlock_t tx_lock;
-
- u32 max_size_mc_table; /* max number of multicast addresses */
-
- /* LAN OSM configurable parameters are here: */
-
- u16 max_buckets_out; /* max nbr of buckets to send to DDM */
- u16 bucket_thresh; /* send more when this many used */
- u16 rx_copybreak;
-
- u8 tx_batch_mode; /* Set when using batch mode sends */
- u32 i2o_event_mask; /* To turn on interesting event flags */
-};
-
-#endif /* _I2O_LAN_H */
diff -L drivers/message/i2o/i2o_proc.c -puN drivers/message/i2o/i2o_proc.c~i2o-build_99 /dev/null
--- 25/drivers/message/i2o/i2o_proc.c
+++ /dev/null Thu Apr 11 07:25:15 2002
@@ -1,3409 +0,0 @@
-/*
- * procfs handler for Linux I2O subsystem
- *
- * (c) Copyright 1999 Deepak Saxena
- *
- * Originally written by Deepak Saxena(deepak@plexity.net)
- *
- * This program is free software. You can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * This is an initial test release. The code is based on the design
- * of the ide procfs system (drivers/block/ide-proc.c). Some code
- * taken from i2o-core module by Alan Cox.
- *
- * DISCLAIMER: This code is still under development/test and may cause
- * your system to behave unpredictably. Use at your own discretion.
- *
- * LAN entries by Juha Siev�nen (Juha.Sievanen@cs.Helsinki.FI),
- * Auvo H�kkinen (Auvo.Hakkinen@cs.Helsinki.FI)
- * University of Helsinki, Department of Computer Science
- */
-
-/*
- * set tabstop=3
- */
-
-/*
- * TODO List
- *
- * - Add support for any version 2.0 spec changes once 2.0 IRTOS is
- * is available to test with
- * - Clean up code to use official structure definitions
- */
-
-// FIXME!
-#define FMT_U64_HEX "0x%08x%08x"
-#define U64_VAL(pu64) *((u32*)(pu64)+1), *((u32*)(pu64))
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/i2o.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-
-#include <asm/io.h>
-#include <asm/uaccess.h>
-#include <asm/byteorder.h>
-
-#include "i2o_lan.h"
-
-/*
- * Structure used to define /proc entries
- */
-typedef struct _i2o_proc_entry_t
-{
- char *name; /* entry name */
- mode_t mode; /* mode */
- read_proc_t *read_proc; /* read func */
- write_proc_t *write_proc; /* write func */
- struct file_operations *fops_proc; /* file operations func */
-} i2o_proc_entry;
-
-// #define DRIVERDEBUG
-
-static int i2o_seq_show_lct(struct seq_file *, void *);
-static int i2o_seq_show_hrt(struct seq_file *, void *);
-static int i2o_seq_show_status(struct seq_file *, void *);
-
-static int i2o_proc_read_hw(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_ddm_table(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_driver_store(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_drivers_stored(char *, char **, off_t, int, int *, void *);
-
-static int i2o_proc_read_groups(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_phys_device(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_claimed(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_users(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_priv_msgs(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_authorized_users(char *, char **, off_t, int, int *, void *);
-
-static int i2o_proc_read_dev_name(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_dev_identity(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_ddm_identity(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_uinfo(char *, char **, off_t, int, int *, void *);
-static int i2o_proc_read_sgl_limits(char *, char **, off_t, int, int *, void *);
-
-static int i2o_proc_read_sensors(char *, char **, off_t, int, int *, void *);
-
-static int print_serial_number(char *, int, u8 *, int);
-
-static int i2o_proc_create_entries(void *, i2o_proc_entry *,
- struct proc_dir_entry *);
-static void i2o_proc_remove_entries(i2o_proc_entry *, struct proc_dir_entry *);
-static int i2o_proc_add_controller(struct i2o_controller *,
- struct proc_dir_entry * );
-static void i2o_proc_remove_controller(struct i2o_controller *,
- struct proc_dir_entry * );
-static void i2o_proc_add_device(struct i2o_device *, struct proc_dir_entry *);
-static void i2o_proc_remove_device(struct i2o_device *);
-static int create_i2o_procfs(void);
-static int destroy_i2o_procfs(void);
-static void i2o_proc_new_dev(struct i2o_controller *, struct i2o_device *);
-static void i2o_proc_dev_del(struct i2o_controller *, struct i2o_device *);
-
-static int i2o_proc_read_lan_dev_info(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_mac_addr(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_mcast_addr(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_batch_control(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_operation(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_media_operation(char *, char **, off_t, int,
- int *, void *);
-static int i2o_proc_read_lan_alt_addr(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_tx_info(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_rx_info(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_hist_stats(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_eth_stats(char *, char **, off_t, int,
- int *, void *);
-static int i2o_proc_read_lan_tr_stats(char *, char **, off_t, int, int *,
- void *);
-static int i2o_proc_read_lan_fddi_stats(char *, char **, off_t, int, int *,
- void *);
-
-static struct proc_dir_entry *i2o_proc_dir_root;
-
-/*
- * I2O OSM descriptor
- */
-static struct i2o_handler i2o_proc_handler =
-{
- NULL,
- i2o_proc_new_dev,
- i2o_proc_dev_del,
- NULL,
- "I2O procfs Layer",
- 0,
- 0xffffffff // All classes
-};
-
-static int i2o_seq_open_hrt(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_hrt, PDE(inode)->data);
-};
-
-struct file_operations i2o_seq_fops_hrt = {
- .open = i2o_seq_open_hrt,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release
-};
-
-static int i2o_seq_open_lct(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_lct, PDE(inode)->data);
-};
-
-struct file_operations i2o_seq_fops_lct = {
- .open = i2o_seq_open_lct,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release
-};
-
-static int i2o_seq_open_status(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_status, PDE(inode)->data);
-};
-
-struct file_operations i2o_seq_fops_status = {
- .open = i2o_seq_open_status,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release
-};
-
-/*
- * IOP specific entries...write field just in case someone
- * ever wants one.
- */
-static i2o_proc_entry generic_iop_entries[] =
-{
- {"hrt", S_IFREG|S_IRUGO, NULL, NULL, &i2o_seq_fops_hrt},
- {"lct", S_IFREG|S_IRUGO, NULL, NULL, &i2o_seq_fops_lct},
- {"status", S_IFREG|S_IRUGO, NULL, NULL, &i2o_seq_fops_status},
- {"hw", S_IFREG|S_IRUGO, i2o_proc_read_hw, NULL, NULL},
- {"ddm_table", S_IFREG|S_IRUGO, i2o_proc_read_ddm_table, NULL, NULL},
- {"driver_store", S_IFREG|S_IRUGO, i2o_proc_read_driver_store, NULL, NULL},
- {"drivers_stored", S_IFREG|S_IRUGO, i2o_proc_read_drivers_stored, NULL, NULL},
- {NULL, 0, NULL, NULL, NULL}
-};
-
-/*
- * Device specific entries
- */
-static i2o_proc_entry generic_dev_entries[] =
-{
- {"groups", S_IFREG|S_IRUGO, i2o_proc_read_groups, NULL, NULL},
- {"phys_dev", S_IFREG|S_IRUGO, i2o_proc_read_phys_device, NULL, NULL},
- {"claimed", S_IFREG|S_IRUGO, i2o_proc_read_claimed, NULL, NULL},
- {"users", S_IFREG|S_IRUGO, i2o_proc_read_users, NULL, NULL},
- {"priv_msgs", S_IFREG|S_IRUGO, i2o_proc_read_priv_msgs, NULL, NULL},
- {"authorized_users", S_IFREG|S_IRUGO, i2o_proc_read_authorized_users, NULL, NULL},
- {"dev_identity", S_IFREG|S_IRUGO, i2o_proc_read_dev_identity, NULL, NULL},
- {"ddm_identity", S_IFREG|S_IRUGO, i2o_proc_read_ddm_identity, NULL, NULL},
- {"user_info", S_IFREG|S_IRUGO, i2o_proc_read_uinfo, NULL, NULL},
- {"sgl_limits", S_IFREG|S_IRUGO, i2o_proc_read_sgl_limits, NULL, NULL},
- {"sensors", S_IFREG|S_IRUGO, i2o_proc_read_sensors, NULL, NULL},
- {NULL, 0, NULL, NULL, NULL}
-};
-
-/*
- * Storage unit specific entries (SCSI Periph, BS) with device names
- */
-static i2o_proc_entry rbs_dev_entries[] =
-{
- {"dev_name", S_IFREG|S_IRUGO, i2o_proc_read_dev_name, NULL, NULL},
- {NULL, 0, NULL, NULL}
-};
-
-#define SCSI_TABLE_SIZE 13
-static char *scsi_devices[] =
-{
- "Direct-Access Read/Write",
- "Sequential-Access Storage",
- "Printer",
- "Processor",
- "WORM Device",
- "CD-ROM Device",
- "Scanner Device",
- "Optical Memory Device",
- "Medium Changer Device",
- "Communications Device",
- "Graphics Art Pre-Press Device",
- "Graphics Art Pre-Press Device",
- "Array Controller Device"
-};
-
-/* private */
-
-/*
- * Generic LAN specific entries
- *
- * Should groups with r/w entries have their own subdirectory?
- *
- */
-static i2o_proc_entry lan_entries[] =
-{
- {"lan_dev_info", S_IFREG|S_IRUGO, i2o_proc_read_lan_dev_info, NULL, NULL},
- {"lan_mac_addr", S_IFREG|S_IRUGO, i2o_proc_read_lan_mac_addr, NULL, NULL},
- {"lan_mcast_addr", S_IFREG|S_IRUGO|S_IWUSR,
- i2o_proc_read_lan_mcast_addr, NULL, NULL},
- {"lan_batch_ctrl", S_IFREG|S_IRUGO|S_IWUSR,
- i2o_proc_read_lan_batch_control, NULL, NULL},
- {"lan_operation", S_IFREG|S_IRUGO, i2o_proc_read_lan_operation, NULL, NULL},
- {"lan_media_operation", S_IFREG|S_IRUGO,
- i2o_proc_read_lan_media_operation, NULL, NULL},
- {"lan_alt_addr", S_IFREG|S_IRUGO, i2o_proc_read_lan_alt_addr, NULL, NULL},
- {"lan_tx_info", S_IFREG|S_IRUGO, i2o_proc_read_lan_tx_info, NULL, NULL},
- {"lan_rx_info", S_IFREG|S_IRUGO, i2o_proc_read_lan_rx_info, NULL, NULL},
-
- {"lan_hist_stats", S_IFREG|S_IRUGO, i2o_proc_read_lan_hist_stats, NULL, NULL},
- {NULL, 0, NULL, NULL, NULL}
-};
-
-/*
- * Port specific LAN entries
- *
- */
-static i2o_proc_entry lan_eth_entries[] =
-{
- {"lan_eth_stats", S_IFREG|S_IRUGO, i2o_proc_read_lan_eth_stats, NULL, NULL},
- {NULL, 0, NULL, NULL, NULL}
-};
-
-static i2o_proc_entry lan_tr_entries[] =
-{
- {"lan_tr_stats", S_IFREG|S_IRUGO, i2o_proc_read_lan_tr_stats, NULL, NULL},
- {NULL, 0, NULL, NULL, NULL}
-};
-
-static i2o_proc_entry lan_fddi_entries[] =
-{
- {"lan_fddi_stats", S_IFREG|S_IRUGO, i2o_proc_read_lan_fddi_stats, NULL, NULL},
- {NULL, 0, NULL, NULL, NULL}
-};
-
-
-static char *chtostr(u8 *chars, int n)
-{
- char tmp[256];
- tmp[0] = 0;
- return strncat(tmp, (char *)chars, n);
-}
-
-static int i2o_report_query_status(char *buf, int block_status, char *group)
-{
- switch (block_status)
- {
- case -ETIMEDOUT:
- return sprintf(buf, "Timeout reading group %s.\n",group);
- case -ENOMEM:
- return sprintf(buf, "No free memory to read the table.\n");
- case -I2O_PARAMS_STATUS_INVALID_GROUP_ID:
- return sprintf(buf, "Group %s not supported.\n", group);
- default:
- return sprintf(buf, "Error reading group %s. BlockStatus 0x%02X\n",
- group, -block_status);
- }
-}
-
-static char* bus_strings[] =
-{
- "Local Bus",
- "ISA",
- "EISA",
- "MCA",
- "PCI",
- "PCMCIA",
- "NUBUS",
- "CARDBUS"
-};
-
-static spinlock_t i2o_proc_lock = SPIN_LOCK_UNLOCKED;
-
-int i2o_seq_show_hrt(struct seq_file *seq, void *v)
-{
- struct i2o_controller *c = (struct i2o_controller *)seq->private;
- i2o_hrt *hrt = (i2o_hrt *)c->hrt;
- u32 bus;
- int i;
-
- if(hrt->hrt_version)
- {
- seq_printf(seq, "HRT table for controller is too new a version.\n");
- return 0;
- }
-
- seq_printf(seq, "HRT has %d entries of %d bytes each.\n",
- hrt->num_entries, hrt->entry_len << 2);
-
- for(i = 0; i < hrt->num_entries; i++)
- {
- seq_printf(seq, "Entry %d:\n", i);
- seq_printf(seq, " Adapter ID: %0#10x\n",
- hrt->hrt_entry[i].adapter_id);
- seq_printf(seq, " Controlling tid: %0#6x\n",
- hrt->hrt_entry[i].parent_tid);
-
- if(hrt->hrt_entry[i].bus_type != 0x80)
- {
- bus = hrt->hrt_entry[i].bus_type;
- seq_printf(seq, " %s Information\n", bus_strings[bus]);
-
- switch(bus)
- {
- case I2O_BUS_LOCAL:
- seq_printf(seq, " IOBase: %0#6x,",
- hrt->hrt_entry[i].bus.local_bus.LbBaseIOPort);
- seq_printf(seq, " MemoryBase: %0#10x\n",
- hrt->hrt_entry[i].bus.local_bus.LbBaseMemoryAddress);
- break;
-
- case I2O_BUS_ISA:
- seq_printf(seq, " IOBase: %0#6x,",
- hrt->hrt_entry[i].bus.isa_bus.IsaBaseIOPort);
- seq_printf(seq, " MemoryBase: %0#10x,",
- hrt->hrt_entry[i].bus.isa_bus.IsaBaseMemoryAddress);
- seq_printf(seq, " CSN: %0#4x,",
- hrt->hrt_entry[i].bus.isa_bus.CSN);
- break;
-
- case I2O_BUS_EISA:
- seq_printf(seq, " IOBase: %0#6x,",
- hrt->hrt_entry[i].bus.eisa_bus.EisaBaseIOPort);
- seq_printf(seq, " MemoryBase: %0#10x,",
- hrt->hrt_entry[i].bus.eisa_bus.EisaBaseMemoryAddress);
- seq_printf(seq, " Slot: %0#4x,",
- hrt->hrt_entry[i].bus.eisa_bus.EisaSlotNumber);
- break;
-
- case I2O_BUS_MCA:
- seq_printf(seq, " IOBase: %0#6x,",
- hrt->hrt_entry[i].bus.mca_bus.McaBaseIOPort);
- seq_printf(seq, " MemoryBase: %0#10x,",
- hrt->hrt_entry[i].bus.mca_bus.McaBaseMemoryAddress);
- seq_printf(seq, " Slot: %0#4x,",
- hrt->hrt_entry[i].bus.mca_bus.McaSlotNumber);
- break;
-
- case I2O_BUS_PCI:
- seq_printf(seq, " Bus: %0#4x",
- hrt->hrt_entry[i].bus.pci_bus.PciBusNumber);
- seq_printf(seq, " Dev: %0#4x",
- hrt->hrt_entry[i].bus.pci_bus.PciDeviceNumber);
- seq_printf(seq, " Func: %0#4x",
- hrt->hrt_entry[i].bus.pci_bus.PciFunctionNumber);
- seq_printf(seq, " Vendor: %0#6x",
- hrt->hrt_entry[i].bus.pci_bus.PciVendorID);
- seq_printf(seq, " Device: %0#6x\n",
- hrt->hrt_entry[i].bus.pci_bus.PciDeviceID);
- break;
-
- default:
- seq_printf(seq, " Unsupported Bus Type\n");
- }
- }
- else
- seq_printf(seq, " Unknown Bus Type\n");
- }
-
- return 0;
-}
-
-int i2o_seq_show_lct(struct seq_file *seq, void *v)
-{
- struct i2o_controller *c = (struct i2o_controller*)seq->private;
- i2o_lct *lct = (i2o_lct *)c->lct;
- int entries;
- int i;
-
-#define BUS_TABLE_SIZE 3
- static char *bus_ports[] =
- {
- "Generic Bus",
- "SCSI Bus",
- "Fibre Channel Bus"
- };
-
- entries = (lct->table_size - 3)/9;
-
- seq_printf(seq, "LCT contains %d %s\n", entries,
- entries == 1 ? "entry" : "entries");
- if(lct->boot_tid)
- seq_printf(seq, "Boot Device @ ID %d\n", lct->boot_tid);
-
- seq_printf(seq, "Current Change Indicator: %#10x\n", lct->change_ind);
-
- for(i = 0; i < entries; i++)
- {
- seq_printf(seq, "Entry %d\n", i);
- seq_printf(seq, " Class, SubClass : %s", i2o_get_class_name(lct->lct_entry[i].class_id));
-
- /*
- * Classes which we'll print subclass info for
- */
- switch(lct->lct_entry[i].class_id & 0xFFF)
- {
- case I2O_CLASS_RANDOM_BLOCK_STORAGE:
- switch(lct->lct_entry[i].sub_class)
- {
- case 0x00:
- seq_printf(seq, ", Direct-Access Read/Write");
- break;
-
- case 0x04:
- seq_printf(seq, ", WORM Drive");
- break;
-
- case 0x05:
- seq_printf(seq, ", CD-ROM Drive");
- break;
-
- case 0x07:
- seq_printf(seq, ", Optical Memory Device");
- break;
-
- default:
- seq_printf(seq, ", Unknown (0x%02x)",
- lct->lct_entry[i].sub_class);
- break;
- }
- break;
-
- case I2O_CLASS_LAN:
- switch(lct->lct_entry[i].sub_class & 0xFF)
- {
- case 0x30:
- seq_printf(seq, ", Ethernet");
- break;
-
- case 0x40:
- seq_printf(seq, ", 100base VG");
- break;
-
- case 0x50:
- seq_printf(seq, ", IEEE 802.5/Token-Ring");
- break;
-
- case 0x60:
- seq_printf(seq, ", ANSI X3T9.5 FDDI");
- break;
-
- case 0x70:
- seq_printf(seq, ", Fibre Channel");
- break;
-
- default:
- seq_printf(seq, ", Unknown Sub-Class (0x%02x)",
- lct->lct_entry[i].sub_class & 0xFF);
- break;
- }
- break;
-
- case I2O_CLASS_SCSI_PERIPHERAL:
- if(lct->lct_entry[i].sub_class < SCSI_TABLE_SIZE)
- seq_printf(seq, ", %s",
- scsi_devices[lct->lct_entry[i].sub_class]);
- else
- seq_printf(seq, ", Unknown Device Type");
- break;
-
- case I2O_CLASS_BUS_ADAPTER_PORT:
- if(lct->lct_entry[i].sub_class < BUS_TABLE_SIZE)
- seq_printf(seq, ", %s",
- bus_ports[lct->lct_entry[i].sub_class]);
- else
- seq_printf(seq, ", Unknown Bus Type");
- break;
- }
- seq_printf(seq, "\n");
-
- seq_printf(seq, " Local TID : 0x%03x\n", lct->lct_entry[i].tid);
- seq_printf(seq, " User TID : 0x%03x\n", lct->lct_entry[i].user_tid);
- seq_printf(seq, " Parent TID : 0x%03x\n",
- lct->lct_entry[i].parent_tid);
- seq_printf(seq, " Identity Tag : 0x%x%x%x%x%x%x%x%x\n",
- lct->lct_entry[i].identity_tag[0],
- lct->lct_entry[i].identity_tag[1],
- lct->lct_entry[i].identity_tag[2],
- lct->lct_entry[i].identity_tag[3],
- lct->lct_entry[i].identity_tag[4],
- lct->lct_entry[i].identity_tag[5],
- lct->lct_entry[i].identity_tag[6],
- lct->lct_entry[i].identity_tag[7]);
- seq_printf(seq, " Change Indicator : %0#10x\n",
- lct->lct_entry[i].change_ind);
- seq_printf(seq, " Event Capab Mask : %0#10x\n",
- lct->lct_entry[i].device_flags);
- }
-
- return 0;
-}
-
-int i2o_seq_show_status(struct seq_file *seq, void *v)
-{
- struct i2o_controller *c = (struct i2o_controller*)seq->private;
- char prodstr[25];
- int version;
-
- i2o_status_get(c); // reread the status block
-
- seq_printf(seq, "Organization ID : %0#6x\n",
- c->status_block->org_id);
-
- version = c->status_block->i2o_version;
-
-/* FIXME for Spec 2.0
- if (version == 0x02) {
- seq_printf(seq, "Lowest I2O version supported: ");
- switch(workspace[2]) {
- case 0x00:
- seq_printf(seq, "1.0\n");
- break;
- case 0x01:
- seq_printf(seq, "1.5\n");
- break;
- case 0x02:
- seq_printf(seq, "2.0\n");
- break;
- }
-
- seq_printf(seq, "Highest I2O version supported: ");
- switch(workspace[3]) {
- case 0x00:
- seq_printf(seq, "1.0\n");
- break;
- case 0x01:
- seq_printf(seq, "1.5\n");
- break;
- case 0x02:
- seq_printf(seq, "2.0\n");
- break;
- }
- }
-*/
- seq_printf(seq, "IOP ID : %0#5x\n",
- c->status_block->iop_id);
- seq_printf(seq, "Host Unit ID : %0#6x\n",
- c->status_block->host_unit_id);
- seq_printf(seq, "Segment Number : %0#5x\n",
- c->status_block->segment_number);
-
- seq_printf(seq, "I2O version : ");
- switch (version) {
- case 0x00:
- seq_printf(seq, "1.0\n");
- break;
- case 0x01:
- seq_printf(seq, "1.5\n");
- break;
- case 0x02:
- seq_printf(seq, "2.0\n");
- break;
- default:
- seq_printf(seq, "Unknown version\n");
- }
-
- seq_printf(seq, "IOP State : ");
- switch (c->status_block->iop_state) {
- case 0x01:
- seq_printf(seq, "INIT\n");
- break;
-
- case 0x02:
- seq_printf(seq, "RESET\n");
- break;
-
- case 0x04:
- seq_printf(seq, "HOLD\n");
- break;
-
- case 0x05:
- seq_printf(seq, "READY\n");
- break;
-
- case 0x08:
- seq_printf(seq, "OPERATIONAL\n");
- break;
-
- case 0x10:
- seq_printf(seq, "FAILED\n");
- break;
-
- case 0x11:
- seq_printf(seq, "FAULTED\n");
- break;
-
- default:
- seq_printf(seq, "Unknown\n");
- break;
- }
-
- seq_printf(seq, "Messenger Type : ");
- switch (c->status_block->msg_type) {
- case 0x00:
- seq_printf(seq, "Memory mapped\n");
- break;
- case 0x01:
- seq_printf(seq, "Memory mapped only\n");
- break;
- case 0x02:
- seq_printf(seq,"Remote only\n");
- break;
- case 0x03:
- seq_printf(seq, "Memory mapped and remote\n");
- break;
- default:
- seq_printf(seq, "Unknown\n");
- }
-
- seq_printf(seq, "Inbound Frame Size : %d bytes\n",
- c->status_block->inbound_frame_size<<2);
- seq_printf(seq, "Max Inbound Frames : %d\n",
- c->status_block->max_inbound_frames);
- seq_printf(seq, "Current Inbound Frames : %d\n",
- c->status_block->cur_inbound_frames);
- seq_printf(seq, "Max Outbound Frames : %d\n",
- c->status_block->max_outbound_frames);
-
- /* Spec doesn't say if NULL terminated or not... */
- memcpy(prodstr, c->status_block->product_id, 24);
- prodstr[24] = '\0';
- seq_printf(seq, "Product ID : %s\n", prodstr);
- seq_printf(seq, "Expected LCT Size : %d bytes\n",
- c->status_block->expected_lct_size);
-
- seq_printf(seq, "IOP Capabilities\n");
- seq_printf(seq, " Context Field Size Support : ");
- switch (c->status_block->iop_capabilities & 0x0000003) {
- case 0:
- seq_printf(seq, "Supports only 32-bit context fields\n");
- break;
- case 1:
- seq_printf(seq, "Supports only 64-bit context fields\n");
- break;
- case 2:
- seq_printf(seq, "Supports 32-bit and 64-bit context fields, "
- "but not concurrently\n");
- break;
- case 3:
- seq_printf(seq, "Supports 32-bit and 64-bit context fields "
- "concurrently\n");
- break;
- default:
- seq_printf(seq, "0x%08x\n",c->status_block->iop_capabilities);
- }
- seq_printf(seq, " Current Context Field Size : ");
- switch (c->status_block->iop_capabilities & 0x0000000C) {
- case 0:
- seq_printf(seq, "not configured\n");
- break;
- case 4:
- seq_printf(seq, "Supports only 32-bit context fields\n");
- break;
- case 8:
- seq_printf(seq, "Supports only 64-bit context fields\n");
- break;
- case 12:
- seq_printf(seq, "Supports both 32-bit or 64-bit context fields "
- "concurrently\n");
- break;
- default:
- seq_printf(seq, "\n");
- }
- seq_printf(seq, " Inbound Peer Support : %s\n",
- (c->status_block->iop_capabilities & 0x00000010) ? "Supported" : "Not supported");
- seq_printf(seq, " Outbound Peer Support : %s\n",
- (c->status_block->iop_capabilities & 0x00000020) ? "Supported" : "Not supported");
- seq_printf(seq, " Peer to Peer Support : %s\n",
- (c->status_block->iop_capabilities & 0x00000040) ? "Supported" : "Not supported");
-
- seq_printf(seq, "Desired private memory size : %d kB\n",
- c->status_block->desired_mem_size>>10);
- seq_printf(seq, "Allocated private memory size : %d kB\n",
- c->status_block->current_mem_size>>10);
- seq_printf(seq, "Private memory base address : %0#10x\n",
- c->status_block->current_mem_base);
- seq_printf(seq, "Desired private I/O size : %d kB\n",
- c->status_block->desired_io_size>>10);
- seq_printf(seq, "Allocated private I/O size : %d kB\n",
- c->status_block->current_io_size>>10);
- seq_printf(seq, "Private I/O base address : %0#10x\n",
- c->status_block->current_io_base);
-
- return 0;
-}
-
-int i2o_proc_read_hw(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_controller *c = (struct i2o_controller*)data;
- static u32 work32[5];
- static u8 *work8 = (u8*)work32;
- static u16 *work16 = (u16*)work32;
- int token;
- u32 hwcap;
-
- static char *cpu_table[] =
- {
- "Intel 80960 series",
- "AMD2900 series",
- "Motorola 68000 series",
- "ARM series",
- "MIPS series",
- "Sparc series",
- "PowerPC series",
- "Intel x86 series"
- };
-
- spin_lock(&i2o_proc_lock);
-
- len = 0;
-
- token = i2o_query_scalar(c, ADAPTER_TID, 0x0000, -1, &work32, sizeof(work32));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0000 IOP Hardware");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "I2O Vendor ID : %0#6x\n", work16[0]);
- len += sprintf(buf+len, "Product ID : %0#6x\n", work16[1]);
- len += sprintf(buf+len, "CPU : ");
- if(work8[16] > 8)
- len += sprintf(buf+len, "Unknown\n");
- else
- len += sprintf(buf+len, "%s\n", cpu_table[work8[16]]);
- /* Anyone using ProcessorVersion? */
-
- len += sprintf(buf+len, "RAM : %dkB\n", work32[1]>>10);
- len += sprintf(buf+len, "Non-Volatile Mem : %dkB\n", work32[2]>>10);
-
- hwcap = work32[3];
- len += sprintf(buf+len, "Capabilities : 0x%08x\n", hwcap);
- len += sprintf(buf+len, " [%s] Self booting\n",
- (hwcap&0x00000001) ? "+" : "-");
- len += sprintf(buf+len, " [%s] Upgradable IRTOS\n",
- (hwcap&0x00000002) ? "+" : "-");
- len += sprintf(buf+len, " [%s] Supports downloading DDMs\n",
- (hwcap&0x00000004) ? "+" : "-");
- len += sprintf(buf+len, " [%s] Supports installing DDMs\n",
- (hwcap&0x00000008) ? "+" : "-");
- len += sprintf(buf+len, " [%s] Battery-backed RAM\n",
- (hwcap&0x00000010) ? "+" : "-");
-
- spin_unlock(&i2o_proc_lock);
-
- return len;
-}
-
-
-/* Executive group 0003h - Executing DDM List (table) */
-int i2o_proc_read_ddm_table(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_controller *c = (struct i2o_controller*)data;
- int token;
- int i;
-
- typedef struct _i2o_exec_execute_ddm_table {
- u16 ddm_tid;
- u8 module_type;
- u8 reserved;
- u16 i2o_vendor_id;
- u16 module_id;
- u8 module_name_version[28];
- u32 data_size;
- u32 code_size;
- } i2o_exec_execute_ddm_table;
-
- struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- i2o_exec_execute_ddm_table ddm_table[MAX_I2O_MODULES];
- } *result;
-
- i2o_exec_execute_ddm_table ddm_table;
-
- result = kmalloc(sizeof(*result), GFP_KERNEL);
- if(!result)
- return -ENOMEM;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- c, ADAPTER_TID,
- 0x0003, -1,
- NULL, 0,
- result, sizeof(*result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0003 Executing DDM List");
- goto out;
- }
-
- len += sprintf(buf+len, "Tid Module_type Vendor Mod_id Module_name Vrs Data_size Code_size\n");
- ddm_table=result->ddm_table[0];
-
- for(i=0; i < result->row_count; ddm_table=result->ddm_table[++i])
- {
- len += sprintf(buf+len, "0x%03x ", ddm_table.ddm_tid & 0xFFF);
-
- switch(ddm_table.module_type)
- {
- case 0x01:
- len += sprintf(buf+len, "Downloaded DDM ");
- break;
- case 0x22:
- len += sprintf(buf+len, "Embedded DDM ");
- break;
- default:
- len += sprintf(buf+len, " ");
- }
-
- len += sprintf(buf+len, "%-#7x", ddm_table.i2o_vendor_id);
- len += sprintf(buf+len, "%-#8x", ddm_table.module_id);
- len += sprintf(buf+len, "%-29s", chtostr(ddm_table.module_name_version, 28));
- len += sprintf(buf+len, "%9d ", ddm_table.data_size);
- len += sprintf(buf+len, "%8d", ddm_table.code_size);
-
- len += sprintf(buf+len, "\n");
- }
-out:
- spin_unlock(&i2o_proc_lock);
- kfree(result);
- return len;
-}
-
-
-/* Executive group 0004h - Driver Store (scalar) */
-int i2o_proc_read_driver_store(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_controller *c = (struct i2o_controller*)data;
- u32 work32[8];
- int token;
-
- spin_lock(&i2o_proc_lock);
-
- len = 0;
-
- token = i2o_query_scalar(c, ADAPTER_TID, 0x0004, -1, &work32, sizeof(work32));
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0004 Driver Store");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "Module limit : %d\n"
- "Module count : %d\n"
- "Current space : %d kB\n"
- "Free space : %d kB\n",
- work32[0], work32[1], work32[2]>>10, work32[3]>>10);
-
- spin_unlock(&i2o_proc_lock);
-
- return len;
-}
-
-
-/* Executive group 0005h - Driver Store Table (table) */
-int i2o_proc_read_drivers_stored(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
-{
- typedef struct _i2o_driver_store {
- u16 stored_ddm_index;
- u8 module_type;
- u8 reserved;
- u16 i2o_vendor_id;
- u16 module_id;
- u8 module_name_version[28];
- u8 date[8];
- u32 module_size;
- u32 mpb_size;
- u32 module_flags;
- } i2o_driver_store_table;
-
- struct i2o_controller *c = (struct i2o_controller*)data;
- int token;
- int i;
-
- typedef struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- i2o_driver_store_table dst[MAX_I2O_MODULES];
- } i2o_driver_result_table;
-
- i2o_driver_result_table *result;
- i2o_driver_store_table *dst;
-
-
- len = 0;
-
- result = kmalloc(sizeof(i2o_driver_result_table), GFP_KERNEL);
- if(result == NULL)
- return -ENOMEM;
-
- spin_lock(&i2o_proc_lock);
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- c, ADAPTER_TID, 0x0005, -1, NULL, 0,
- result, sizeof(*result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0005 DRIVER STORE TABLE");
- spin_unlock(&i2o_proc_lock);
- kfree(result);
- return len;
- }
-
- len += sprintf(buf+len, "# Module_type Vendor Mod_id Module_name Vrs"
- "Date Mod_size Par_size Flags\n");
- for(i=0, dst=&result->dst[0]; i < result->row_count; dst=&result->dst[++i])
- {
- len += sprintf(buf+len, "%-3d", dst->stored_ddm_index);
- switch(dst->module_type)
- {
- case 0x01:
- len += sprintf(buf+len, "Downloaded DDM ");
- break;
- case 0x22:
- len += sprintf(buf+len, "Embedded DDM ");
- break;
- default:
- len += sprintf(buf+len, " ");
- }
-
-#if 0
- if(c->i2oversion == 0x02)
- len += sprintf(buf+len, "%-d", dst->module_state);
-#endif
-
- len += sprintf(buf+len, "%-#7x", dst->i2o_vendor_id);
- len += sprintf(buf+len, "%-#8x", dst->module_id);
- len += sprintf(buf+len, "%-29s", chtostr(dst->module_name_version,28));
- len += sprintf(buf+len, "%-9s", chtostr(dst->date,8));
- len += sprintf(buf+len, "%8d ", dst->module_size);
- len += sprintf(buf+len, "%8d ", dst->mpb_size);
- len += sprintf(buf+len, "0x%04x", dst->module_flags);
-#if 0
- if(c->i2oversion == 0x02)
- len += sprintf(buf+len, "%d",
- dst->notification_level);
-#endif
- len += sprintf(buf+len, "\n");
- }
-
- spin_unlock(&i2o_proc_lock);
- kfree(result);
- return len;
-}
-
-
-/* Generic group F000h - Params Descriptor (table) */
-int i2o_proc_read_groups(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
- int i;
- u8 properties;
-
- typedef struct _i2o_group_info
- {
- u16 group_number;
- u16 field_count;
- u16 row_count;
- u8 properties;
- u8 reserved;
- } i2o_group_info;
-
- struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- i2o_group_info group[256];
- } *result;
-
- result = kmalloc(sizeof(*result), GFP_KERNEL);
- if(!result)
- return -ENOMEM;
-
- spin_lock(&i2o_proc_lock);
-
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- d->controller, d->lct_data.tid, 0xF000, -1, NULL, 0,
- result, sizeof(*result));
-
- if (token < 0) {
- len = i2o_report_query_status(buf+len, token, "0xF000 Params Descriptor");
- goto out;
- }
-
- len += sprintf(buf+len, "# Group FieldCount RowCount Type Add Del Clear\n");
-
- for (i=0; i < result->row_count; i++)
- {
- len += sprintf(buf+len, "%-3d", i);
- len += sprintf(buf+len, "0x%04X ", result->group[i].group_number);
- len += sprintf(buf+len, "%10d ", result->group[i].field_count);
- len += sprintf(buf+len, "%8d ", result->group[i].row_count);
-
- properties = result->group[i].properties;
- if (properties & 0x1) len += sprintf(buf+len, "Table ");
- else len += sprintf(buf+len, "Scalar ");
- if (properties & 0x2) len += sprintf(buf+len, " + ");
- else len += sprintf(buf+len, " - ");
- if (properties & 0x4) len += sprintf(buf+len, " + ");
- else len += sprintf(buf+len, " - ");
- if (properties & 0x8) len += sprintf(buf+len, " + ");
- else len += sprintf(buf+len, " - ");
-
- len += sprintf(buf+len, "\n");
- }
-
- if (result->more_flag)
- len += sprintf(buf+len, "There is more...\n");
-out:
- spin_unlock(&i2o_proc_lock);
- kfree(result);
- return len;
-}
-
-
-/* Generic group F001h - Physical Device Table (table) */
-int i2o_proc_read_phys_device(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
- int i;
-
- struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- u32 adapter_id[64];
- } result;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- d->controller, d->lct_data.tid,
- 0xF001, -1, NULL, 0,
- &result, sizeof(result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF001 Physical Device Table");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- if (result.row_count)
- len += sprintf(buf+len, "# AdapterId\n");
-
- for (i=0; i < result.row_count; i++)
- {
- len += sprintf(buf+len, "%-2d", i);
- len += sprintf(buf+len, "%#7x\n", result.adapter_id[i]);
- }
-
- if (result.more_flag)
- len += sprintf(buf+len, "There is more...\n");
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* Generic group F002h - Claimed Table (table) */
-int i2o_proc_read_claimed(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
- int i;
-
- struct {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- u16 claimed_tid[64];
- } result;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- d->controller, d->lct_data.tid,
- 0xF002, -1, NULL, 0,
- &result, sizeof(result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF002 Claimed Table");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- if (result.row_count)
- len += sprintf(buf+len, "# ClaimedTid\n");
-
- for (i=0; i < result.row_count; i++)
- {
- len += sprintf(buf+len, "%-2d", i);
- len += sprintf(buf+len, "%#7x\n", result.claimed_tid[i]);
- }
-
- if (result.more_flag)
- len += sprintf(buf+len, "There is more...\n");
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* Generic group F003h - User Table (table) */
-int i2o_proc_read_users(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
- int i;
-
- typedef struct _i2o_user_table
- {
- u16 instance;
- u16 user_tid;
- u8 claim_type;
- u8 reserved1;
- u16 reserved2;
- } i2o_user_table;
-
- struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- i2o_user_table user[64];
- } *result;
-
- result = kmalloc(sizeof(*result), GFP_KERNEL);
- if(!result)
- return -ENOMEM;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- d->controller, d->lct_data.tid,
- 0xF003, -1, NULL, 0,
- result, sizeof(*result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF003 User Table");
- goto out;
- }
-
- len += sprintf(buf+len, "# Instance UserTid ClaimType\n");
-
- for(i=0; i < result->row_count; i++)
- {
- len += sprintf(buf+len, "%-3d", i);
- len += sprintf(buf+len, "%#8x ", result->user[i].instance);
- len += sprintf(buf+len, "%#7x ", result->user[i].user_tid);
- len += sprintf(buf+len, "%#9x\n", result->user[i].claim_type);
- }
-
- if (result->more_flag)
- len += sprintf(buf+len, "There is more...\n");
-out:
- spin_unlock(&i2o_proc_lock);
- kfree(result);
- return len;
-}
-
-/* Generic group F005h - Private message extensions (table) (optional) */
-int i2o_proc_read_priv_msgs(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
- int i;
-
- typedef struct _i2o_private
- {
- u16 ext_instance;
- u16 organization_id;
- u16 x_function_code;
- } i2o_private;
-
- struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- i2o_private extension[64];
- } result;
-
- spin_lock(&i2o_proc_lock);
-
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- d->controller, d->lct_data.tid,
- 0xF000, -1,
- NULL, 0,
- &result, sizeof(result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF005 Private Message Extensions (optional)");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "Instance# OrgId FunctionCode\n");
-
- for(i=0; i < result.row_count; i++)
- {
- len += sprintf(buf+len, "%0#9x ", result.extension[i].ext_instance);
- len += sprintf(buf+len, "%0#6x ", result.extension[i].organization_id);
- len += sprintf(buf+len, "%0#6x", result.extension[i].x_function_code);
-
- len += sprintf(buf+len, "\n");
- }
-
- if(result.more_flag)
- len += sprintf(buf+len, "There is more...\n");
-
- spin_unlock(&i2o_proc_lock);
-
- return len;
-}
-
-
-/* Generic group F006h - Authorized User Table (table) */
-int i2o_proc_read_authorized_users(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
- int i;
-
- struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- u32 alternate_tid[64];
- } result;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- d->controller, d->lct_data.tid,
- 0xF006, -1,
- NULL, 0,
- &result, sizeof(result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF006 Autohorized User Table");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- if (result.row_count)
- len += sprintf(buf+len, "# AlternateTid\n");
-
- for(i=0; i < result.row_count; i++)
- {
- len += sprintf(buf+len, "%-2d", i);
- len += sprintf(buf+len, "%#7x ", result.alternate_tid[i]);
- }
-
- if (result.more_flag)
- len += sprintf(buf+len, "There is more...\n");
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-
-/* Generic group F100h - Device Identity (scalar) */
-int i2o_proc_read_dev_identity(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u32 work32[128]; // allow for "stuff" + up to 256 byte (max) serial number
- // == (allow) 512d bytes (max)
- static u16 *work16 = (u16*)work32;
- int token;
-
- spin_lock(&i2o_proc_lock);
-
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0xF100, -1,
- &work32, sizeof(work32));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token ,"0xF100 Device Identity");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "Device Class : %s\n", i2o_get_class_name(work16[0]));
- len += sprintf(buf+len, "Owner TID : %0#5x\n", work16[2]);
- len += sprintf(buf+len, "Parent TID : %0#5x\n", work16[3]);
- len += sprintf(buf+len, "Vendor info : %s\n", chtostr((u8 *)(work32+2), 16));
- len += sprintf(buf+len, "Product info : %s\n", chtostr((u8 *)(work32+6), 16));
- len += sprintf(buf+len, "Description : %s\n", chtostr((u8 *)(work32+10), 16));
- len += sprintf(buf+len, "Product rev. : %s\n", chtostr((u8 *)(work32+14), 8));
-
- len += sprintf(buf+len, "Serial number : ");
- len = print_serial_number(buf, len,
- (u8*)(work32+16),
- /* allow for SNLen plus
- * possible trailing '\0'
- */
- sizeof(work32)-(16*sizeof(u32))-2
- );
- len += sprintf(buf+len, "\n");
-
- spin_unlock(&i2o_proc_lock);
-
- return len;
-}
-
-
-int i2o_proc_read_dev_name(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
-
- if ( d->dev_name[0] == '\0' )
- return 0;
-
- len = sprintf(buf, "%s\n", d->dev_name);
-
- return len;
-}
-
-
-/* Generic group F101h - DDM Identity (scalar) */
-int i2o_proc_read_ddm_identity(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
-
- struct
- {
- u16 ddm_tid;
- u8 module_name[24];
- u8 module_rev[8];
- u8 sn_format;
- u8 serial_number[12];
- u8 pad[256]; // allow up to 256 byte (max) serial number
- } result;
-
- spin_lock(&i2o_proc_lock);
-
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0xF101, -1,
- &result, sizeof(result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF101 DDM Identity");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
- len += sprintf(buf+len, "Module name : %s\n", chtostr(result.module_name, 24));
- len += sprintf(buf+len, "Module revision : %s\n", chtostr(result.module_rev, 8));
-
- len += sprintf(buf+len, "Serial number : ");
- len = print_serial_number(buf, len, result.serial_number, sizeof(result)-36);
- /* allow for SNLen plus possible trailing '\0' */
-
- len += sprintf(buf+len, "\n");
-
- spin_unlock(&i2o_proc_lock);
-
- return len;
-}
-
-/* Generic group F102h - User Information (scalar) */
-int i2o_proc_read_uinfo(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
-
- struct
- {
- u8 device_name[64];
- u8 service_name[64];
- u8 physical_location[64];
- u8 instance_number[4];
- } result;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0xF102, -1,
- &result, sizeof(result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF102 User Information");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "Device name : %s\n", chtostr(result.device_name, 64));
- len += sprintf(buf+len, "Service name : %s\n", chtostr(result.service_name, 64));
- len += sprintf(buf+len, "Physical name : %s\n", chtostr(result.physical_location, 64));
- len += sprintf(buf+len, "Instance number : %s\n", chtostr(result.instance_number, 4));
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* Generic group F103h - SGL Operating Limits (scalar) */
-int i2o_proc_read_sgl_limits(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u32 work32[12];
- static u16 *work16 = (u16 *)work32;
- static u8 *work8 = (u8 *)work32;
- int token;
-
- spin_lock(&i2o_proc_lock);
-
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0xF103, -1,
- &work32, sizeof(work32));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF103 SGL Operating Limits");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "SGL chain size : %d\n", work32[0]);
- len += sprintf(buf+len, "Max SGL chain size : %d\n", work32[1]);
- len += sprintf(buf+len, "SGL chain size target : %d\n", work32[2]);
- len += sprintf(buf+len, "SGL frag count : %d\n", work16[6]);
- len += sprintf(buf+len, "Max SGL frag count : %d\n", work16[7]);
- len += sprintf(buf+len, "SGL frag count target : %d\n", work16[8]);
-
- if (d->i2oversion == 0x02)
- {
- len += sprintf(buf+len, "SGL data alignment : %d\n", work16[8]);
- len += sprintf(buf+len, "SGL addr limit : %d\n", work8[20]);
- len += sprintf(buf+len, "SGL addr sizes supported : ");
- if (work8[21] & 0x01)
- len += sprintf(buf+len, "32 bit ");
- if (work8[21] & 0x02)
- len += sprintf(buf+len, "64 bit ");
- if (work8[21] & 0x04)
- len += sprintf(buf+len, "96 bit ");
- if (work8[21] & 0x08)
- len += sprintf(buf+len, "128 bit ");
- len += sprintf(buf+len, "\n");
- }
-
- spin_unlock(&i2o_proc_lock);
-
- return len;
-}
-
-/* Generic group F200h - Sensors (scalar) */
-int i2o_proc_read_sensors(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
-
- struct
- {
- u16 sensor_instance;
- u8 component;
- u16 component_instance;
- u8 sensor_class;
- u8 sensor_type;
- u8 scaling_exponent;
- u32 actual_reading;
- u32 minimum_reading;
- u32 low2lowcat_treshold;
- u32 lowcat2low_treshold;
- u32 lowwarn2low_treshold;
- u32 low2lowwarn_treshold;
- u32 norm2lowwarn_treshold;
- u32 lowwarn2norm_treshold;
- u32 nominal_reading;
- u32 hiwarn2norm_treshold;
- u32 norm2hiwarn_treshold;
- u32 high2hiwarn_treshold;
- u32 hiwarn2high_treshold;
- u32 hicat2high_treshold;
- u32 hi2hicat_treshold;
- u32 maximum_reading;
- u8 sensor_state;
- u16 event_enable;
- } result;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0xF200, -1,
- &result, sizeof(result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0xF200 Sensors (optional)");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "Sensor instance : %d\n", result.sensor_instance);
-
- len += sprintf(buf+len, "Component : %d = ", result.component);
- switch (result.component)
- {
- case 0: len += sprintf(buf+len, "Other");
- break;
- case 1: len += sprintf(buf+len, "Planar logic Board");
- break;
- case 2: len += sprintf(buf+len, "CPU");
- break;
- case 3: len += sprintf(buf+len, "Chassis");
- break;
- case 4: len += sprintf(buf+len, "Power Supply");
- break;
- case 5: len += sprintf(buf+len, "Storage");
- break;
- case 6: len += sprintf(buf+len, "External");
- break;
- }
- len += sprintf(buf+len,"\n");
-
- len += sprintf(buf+len, "Component instance : %d\n", result.component_instance);
- len += sprintf(buf+len, "Sensor class : %s\n",
- result.sensor_class ? "Analog" : "Digital");
-
- len += sprintf(buf+len, "Sensor type : %d = ",result.sensor_type);
- switch (result.sensor_type)
- {
- case 0: len += sprintf(buf+len, "Other\n");
- break;
- case 1: len += sprintf(buf+len, "Thermal\n");
- break;
- case 2: len += sprintf(buf+len, "DC voltage (DC volts)\n");
- break;
- case 3: len += sprintf(buf+len, "AC voltage (AC volts)\n");
- break;
- case 4: len += sprintf(buf+len, "DC current (DC amps)\n");
- break;
- case 5: len += sprintf(buf+len, "AC current (AC volts)\n");
- break;
- case 6: len += sprintf(buf+len, "Door open\n");
- break;
- case 7: len += sprintf(buf+len, "Fan operational\n");
- break;
- }
-
- len += sprintf(buf+len, "Scaling exponent : %d\n", result.scaling_exponent);
- len += sprintf(buf+len, "Actual reading : %d\n", result.actual_reading);
- len += sprintf(buf+len, "Minimum reading : %d\n", result.minimum_reading);
- len += sprintf(buf+len, "Low2LowCat treshold : %d\n", result.low2lowcat_treshold);
- len += sprintf(buf+len, "LowCat2Low treshold : %d\n", result.lowcat2low_treshold);
- len += sprintf(buf+len, "LowWarn2Low treshold : %d\n", result.lowwarn2low_treshold);
- len += sprintf(buf+len, "Low2LowWarn treshold : %d\n", result.low2lowwarn_treshold);
- len += sprintf(buf+len, "Norm2LowWarn treshold : %d\n", result.norm2lowwarn_treshold);
- len += sprintf(buf+len, "LowWarn2Norm treshold : %d\n", result.lowwarn2norm_treshold);
- len += sprintf(buf+len, "Nominal reading : %d\n", result.nominal_reading);
- len += sprintf(buf+len, "HiWarn2Norm treshold : %d\n", result.hiwarn2norm_treshold);
- len += sprintf(buf+len, "Norm2HiWarn treshold : %d\n", result.norm2hiwarn_treshold);
- len += sprintf(buf+len, "High2HiWarn treshold : %d\n", result.high2hiwarn_treshold);
- len += sprintf(buf+len, "HiWarn2High treshold : %d\n", result.hiwarn2high_treshold);
- len += sprintf(buf+len, "HiCat2High treshold : %d\n", result.hicat2high_treshold);
- len += sprintf(buf+len, "High2HiCat treshold : %d\n", result.hi2hicat_treshold);
- len += sprintf(buf+len, "Maximum reading : %d\n", result.maximum_reading);
-
- len += sprintf(buf+len, "Sensor state : %d = ", result.sensor_state);
- switch (result.sensor_state)
- {
- case 0: len += sprintf(buf+len, "Normal\n");
- break;
- case 1: len += sprintf(buf+len, "Abnormal\n");
- break;
- case 2: len += sprintf(buf+len, "Unknown\n");
- break;
- case 3: len += sprintf(buf+len, "Low Catastrophic (LoCat)\n");
- break;
- case 4: len += sprintf(buf+len, "Low (Low)\n");
- break;
- case 5: len += sprintf(buf+len, "Low Warning (LoWarn)\n");
- break;
- case 6: len += sprintf(buf+len, "High Warning (HiWarn)\n");
- break;
- case 7: len += sprintf(buf+len, "High (High)\n");
- break;
- case 8: len += sprintf(buf+len, "High Catastrophic (HiCat)\n");
- break;
- }
-
- len += sprintf(buf+len, "Event_enable : 0x%02X\n", result.event_enable);
- len += sprintf(buf+len, " [%s] Operational state change. \n",
- (result.event_enable & 0x01) ? "+" : "-" );
- len += sprintf(buf+len, " [%s] Low catastrophic. \n",
- (result.event_enable & 0x02) ? "+" : "-" );
- len += sprintf(buf+len, " [%s] Low reading. \n",
- (result.event_enable & 0x04) ? "+" : "-" );
- len += sprintf(buf+len, " [%s] Low warning. \n",
- (result.event_enable & 0x08) ? "+" : "-" );
- len += sprintf(buf+len, " [%s] Change back to normal from out of range state. \n",
- (result.event_enable & 0x10) ? "+" : "-" );
- len += sprintf(buf+len, " [%s] High warning. \n",
- (result.event_enable & 0x20) ? "+" : "-" );
- len += sprintf(buf+len, " [%s] High reading. \n",
- (result.event_enable & 0x40) ? "+" : "-" );
- len += sprintf(buf+len, " [%s] High catastrophic. \n",
- (result.event_enable & 0x80) ? "+" : "-" );
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-
-static int print_serial_number(char *buff, int pos, u8 *serialno, int max_len)
-{
- int i;
-
- /* 19990419 -sralston
- * The I2O v1.5 (and v2.0 so far) "official specification"
- * got serial numbers WRONG!
- * Apparently, and despite what Section 3.4.4 says and
- * Figure 3-35 shows (pg 3-39 in the pdf doc),
- * the convention / consensus seems to be:
- * + First byte is SNFormat
- * + Second byte is SNLen (but only if SNFormat==7 (?))
- * + (v2.0) SCSI+BS may use IEEE Registered (64 or 128 bit) format
- */
- switch(serialno[0])
- {
- case I2O_SNFORMAT_BINARY: /* Binary */
- pos += sprintf(buff+pos, "0x");
- for(i = 0; i < serialno[1]; i++)
- {
- pos += sprintf(buff+pos, "%02X", serialno[2+i]);
- }
- break;
-
- case I2O_SNFORMAT_ASCII: /* ASCII */
- if ( serialno[1] < ' ' ) /* printable or SNLen? */
- {
- /* sanity */
- max_len = (max_len < serialno[1]) ? max_len : serialno[1];
- serialno[1+max_len] = '\0';
-
- /* just print it */
- pos += sprintf(buff+pos, "%s", &serialno[2]);
- }
- else
- {
- /* print chars for specified length */
- for(i = 0; i < serialno[1]; i++)
- {
- pos += sprintf(buff+pos, "%c", serialno[2+i]);
- }
- }
- break;
-
- case I2O_SNFORMAT_UNICODE: /* UNICODE */
- pos += sprintf(buff+pos, "UNICODE Format. Can't Display\n");
- break;
-
- case I2O_SNFORMAT_LAN48_MAC: /* LAN-48 MAC Address */
- pos += sprintf(buff+pos,
- "LAN-48 MAC address @ %02X:%02X:%02X:%02X:%02X:%02X",
- serialno[2], serialno[3],
- serialno[4], serialno[5],
- serialno[6], serialno[7]);
- break;
-
- case I2O_SNFORMAT_WAN: /* WAN MAC Address */
- /* FIXME: Figure out what a WAN access address looks like?? */
- pos += sprintf(buff+pos, "WAN Access Address");
- break;
-
-/* plus new in v2.0 */
- case I2O_SNFORMAT_LAN64_MAC: /* LAN-64 MAC Address */
- /* FIXME: Figure out what a LAN-64 address really looks like?? */
- pos += sprintf(buff+pos,
- "LAN-64 MAC address @ [?:%02X:%02X:?] %02X:%02X:%02X:%02X:%02X:%02X",
- serialno[8], serialno[9],
- serialno[2], serialno[3],
- serialno[4], serialno[5],
- serialno[6], serialno[7]);
- break;
-
-
- case I2O_SNFORMAT_DDM: /* I2O DDM */
- pos += sprintf(buff+pos,
- "DDM: Tid=%03Xh, Rsvd=%04Xh, OrgId=%04Xh",
- *(u16*)&serialno[2],
- *(u16*)&serialno[4],
- *(u16*)&serialno[6]);
- break;
-
- case I2O_SNFORMAT_IEEE_REG64: /* IEEE Registered (64-bit) */
- case I2O_SNFORMAT_IEEE_REG128: /* IEEE Registered (128-bit) */
- /* FIXME: Figure if this is even close?? */
- pos += sprintf(buff+pos,
- "IEEE NodeName(hi,lo)=(%08Xh:%08Xh), PortName(hi,lo)=(%08Xh:%08Xh)\n",
- *(u32*)&serialno[2],
- *(u32*)&serialno[6],
- *(u32*)&serialno[10],
- *(u32*)&serialno[14]);
- break;
-
-
- case I2O_SNFORMAT_UNKNOWN: /* Unknown 0 */
- case I2O_SNFORMAT_UNKNOWN2: /* Unknown 0xff */
- default:
- pos += sprintf(buff+pos, "Unknown data format (0x%02x)",
- serialno[0]);
- break;
- }
-
- return pos;
-}
-
-const char * i2o_get_connector_type(int conn)
-{
- int idx = 16;
- static char *i2o_connector_type[] = {
- "OTHER",
- "UNKNOWN",
- "AUI",
- "UTP",
- "BNC",
- "RJ45",
- "STP DB9",
- "FIBER MIC",
- "APPLE AUI",
- "MII",
- "DB9",
- "HSSDC",
- "DUPLEX SC FIBER",
- "DUPLEX ST FIBER",
- "TNC/BNC",
- "HW DEFAULT"
- };
-
- switch(conn)
- {
- case 0x00000000:
- idx = 0;
- break;
- case 0x00000001:
- idx = 1;
- break;
- case 0x00000002:
- idx = 2;
- break;
- case 0x00000003:
- idx = 3;
- break;
- case 0x00000004:
- idx = 4;
- break;
- case 0x00000005:
- idx = 5;
- break;
- case 0x00000006:
- idx = 6;
- break;
- case 0x00000007:
- idx = 7;
- break;
- case 0x00000008:
- idx = 8;
- break;
- case 0x00000009:
- idx = 9;
- break;
- case 0x0000000A:
- idx = 10;
- break;
- case 0x0000000B:
- idx = 11;
- break;
- case 0x0000000C:
- idx = 12;
- break;
- case 0x0000000D:
- idx = 13;
- break;
- case 0x0000000E:
- idx = 14;
- break;
- case 0xFFFFFFFF:
- idx = 15;
- break;
- }
-
- return i2o_connector_type[idx];
-}
-
-
-const char * i2o_get_connection_type(int conn)
-{
- int idx = 0;
- static char *i2o_connection_type[] = {
- "Unknown",
- "AUI",
- "10BASE5",
- "FIORL",
- "10BASE2",
- "10BROAD36",
- "10BASE-T",
- "10BASE-FP",
- "10BASE-FB",
- "10BASE-FL",
- "100BASE-TX",
- "100BASE-FX",
- "100BASE-T4",
- "1000BASE-SX",
- "1000BASE-LX",
- "1000BASE-CX",
- "1000BASE-T",
- "100VG-ETHERNET",
- "100VG-TOKEN RING",
- "4MBIT TOKEN RING",
- "16 Mb Token Ring",
- "125 MBAUD FDDI",
- "Point-to-point",
- "Arbitrated loop",
- "Public loop",
- "Fabric",
- "Emulation",
- "Other",
- "HW default"
- };
-
- switch(conn)
- {
- case I2O_LAN_UNKNOWN:
- idx = 0;
- break;
- case I2O_LAN_AUI:
- idx = 1;
- break;
- case I2O_LAN_10BASE5:
- idx = 2;
- break;
- case I2O_LAN_FIORL:
- idx = 3;
- break;
- case I2O_LAN_10BASE2:
- idx = 4;
- break;
- case I2O_LAN_10BROAD36:
- idx = 5;
- break;
- case I2O_LAN_10BASE_T:
- idx = 6;
- break;
- case I2O_LAN_10BASE_FP:
- idx = 7;
- break;
- case I2O_LAN_10BASE_FB:
- idx = 8;
- break;
- case I2O_LAN_10BASE_FL:
- idx = 9;
- break;
- case I2O_LAN_100BASE_TX:
- idx = 10;
- break;
- case I2O_LAN_100BASE_FX:
- idx = 11;
- break;
- case I2O_LAN_100BASE_T4:
- idx = 12;
- break;
- case I2O_LAN_1000BASE_SX:
- idx = 13;
- break;
- case I2O_LAN_1000BASE_LX:
- idx = 14;
- break;
- case I2O_LAN_1000BASE_CX:
- idx = 15;
- break;
- case I2O_LAN_1000BASE_T:
- idx = 16;
- break;
- case I2O_LAN_100VG_ETHERNET:
- idx = 17;
- break;
- case I2O_LAN_100VG_TR:
- idx = 18;
- break;
- case I2O_LAN_4MBIT:
- idx = 19;
- break;
- case I2O_LAN_16MBIT:
- idx = 20;
- break;
- case I2O_LAN_125MBAUD:
- idx = 21;
- break;
- case I2O_LAN_POINT_POINT:
- idx = 22;
- break;
- case I2O_LAN_ARB_LOOP:
- idx = 23;
- break;
- case I2O_LAN_PUBLIC_LOOP:
- idx = 24;
- break;
- case I2O_LAN_FABRIC:
- idx = 25;
- break;
- case I2O_LAN_EMULATION:
- idx = 26;
- break;
- case I2O_LAN_OTHER:
- idx = 27;
- break;
- case I2O_LAN_DEFAULT:
- idx = 28;
- break;
- }
-
- return i2o_connection_type[idx];
-}
-
-
-/* LAN group 0000h - Device info (scalar) */
-int i2o_proc_read_lan_dev_info(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u32 work32[56];
- static u8 *work8 = (u8*)work32;
- static u16 *work16 = (u16*)work32;
- static u64 *work64 = (u64*)work32;
- int token;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0000, -1, &work32, 56*4);
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token, "0x0000 LAN Device Info");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "LAN Type : ");
- switch (work16[0])
- {
- case 0x0030:
- len += sprintf(buf+len, "Ethernet, ");
- break;
- case 0x0040:
- len += sprintf(buf+len, "100Base VG, ");
- break;
- case 0x0050:
- len += sprintf(buf+len, "Token Ring, ");
- break;
- case 0x0060:
- len += sprintf(buf+len, "FDDI, ");
- break;
- case 0x0070:
- len += sprintf(buf+len, "Fibre Channel, ");
- break;
- default:
- len += sprintf(buf+len, "Unknown type (0x%04x), ", work16[0]);
- break;
- }
-
- if (work16[1]&0x00000001)
- len += sprintf(buf+len, "emulated LAN, ");
- else
- len += sprintf(buf+len, "physical LAN port, ");
-
- if (work16[1]&0x00000002)
- len += sprintf(buf+len, "full duplex\n");
- else
- len += sprintf(buf+len, "simplex\n");
-
- len += sprintf(buf+len, "Address format : ");
- switch(work8[4]) {
- case 0x00:
- len += sprintf(buf+len, "IEEE 48bit\n");
- break;
- case 0x01:
- len += sprintf(buf+len, "FC IEEE\n");
- break;
- default:
- len += sprintf(buf+len, "Unknown (0x%02x)\n", work8[4]);
- break;
- }
-
- len += sprintf(buf+len, "State : ");
- switch(work8[5])
- {
- case 0x00:
- len += sprintf(buf+len, "Unknown\n");
- break;
- case 0x01:
- len += sprintf(buf+len, "Unclaimed\n");
- break;
- case 0x02:
- len += sprintf(buf+len, "Operational\n");
- break;
- case 0x03:
- len += sprintf(buf+len, "Suspended\n");
- break;
- case 0x04:
- len += sprintf(buf+len, "Resetting\n");
- break;
- case 0x05:
- len += sprintf(buf+len, "ERROR: ");
- if(work16[3]&0x0001)
- len += sprintf(buf+len, "TxCU inoperative ");
- if(work16[3]&0x0002)
- len += sprintf(buf+len, "RxCU inoperative ");
- if(work16[3]&0x0004)
- len += sprintf(buf+len, "Local mem alloc ");
- len += sprintf(buf+len, "\n");
- break;
- case 0x06:
- len += sprintf(buf+len, "Operational no Rx\n");
- break;
- case 0x07:
- len += sprintf(buf+len, "Suspended no Rx\n");
- break;
- default:
- len += sprintf(buf+len, "Unspecified\n");
- break;
- }
-
- len += sprintf(buf+len, "Min packet size : %d\n", work32[2]);
- len += sprintf(buf+len, "Max packet size : %d\n", work32[3]);
- len += sprintf(buf+len, "HW address : "
- "%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- work8[16],work8[17],work8[18],work8[19],
- work8[20],work8[21],work8[22],work8[23]);
-
- len += sprintf(buf+len, "Max Tx wire speed : %d bps\n", (int)work64[3]);
- len += sprintf(buf+len, "Max Rx wire speed : %d bps\n", (int)work64[4]);
-
- len += sprintf(buf+len, "Min SDU packet size : 0x%08x\n", work32[10]);
- len += sprintf(buf+len, "Max SDU packet size : 0x%08x\n", work32[11]);
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* LAN group 0001h - MAC address table (scalar) */
-int i2o_proc_read_lan_mac_addr(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u32 work32[48];
- static u8 *work8 = (u8*)work32;
- int token;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0001, -1, &work32, 48*4);
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0001 LAN MAC Address");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "Active address : "
- "%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- work8[0],work8[1],work8[2],work8[3],
- work8[4],work8[5],work8[6],work8[7]);
- len += sprintf(buf+len, "Current address : "
- "%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- work8[8],work8[9],work8[10],work8[11],
- work8[12],work8[13],work8[14],work8[15]);
- len += sprintf(buf+len, "Functional address mask : "
- "%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- work8[16],work8[17],work8[18],work8[19],
- work8[20],work8[21],work8[22],work8[23]);
-
- len += sprintf(buf+len,"HW/DDM capabilities : 0x%08x\n", work32[7]);
- len += sprintf(buf+len," [%s] Unicast packets supported\n",
- (work32[7]&0x00000001)?"+":"-");
- len += sprintf(buf+len," [%s] Promiscuous mode supported\n",
- (work32[7]&0x00000002)?"+":"-");
- len += sprintf(buf+len," [%s] Promiscuous multicast mode supported\n",
- (work32[7]&0x00000004)?"+":"-");
- len += sprintf(buf+len," [%s] Broadcast reception disabling supported\n",
- (work32[7]&0x00000100)?"+":"-");
- len += sprintf(buf+len," [%s] Multicast reception disabling supported\n",
- (work32[7]&0x00000200)?"+":"-");
- len += sprintf(buf+len," [%s] Functional address disabling supported\n",
- (work32[7]&0x00000400)?"+":"-");
- len += sprintf(buf+len," [%s] MAC reporting supported\n",
- (work32[7]&0x00000800)?"+":"-");
-
- len += sprintf(buf+len,"Filter mask : 0x%08x\n", work32[6]);
- len += sprintf(buf+len," [%s] Unicast packets disable\n",
- (work32[6]&0x00000001)?"+":"-");
- len += sprintf(buf+len," [%s] Promiscuous mode enable\n",
- (work32[6]&0x00000002)?"+":"-");
- len += sprintf(buf+len," [%s] Promiscuous multicast mode enable\n",
- (work32[6]&0x00000004)?"+":"-");
- len += sprintf(buf+len," [%s] Broadcast packets disable\n",
- (work32[6]&0x00000100)?"+":"-");
- len += sprintf(buf+len," [%s] Multicast packets disable\n",
- (work32[6]&0x00000200)?"+":"-");
- len += sprintf(buf+len," [%s] Functional address disable\n",
- (work32[6]&0x00000400)?"+":"-");
-
- if (work32[7]&0x00000800) {
- len += sprintf(buf+len, " MAC reporting mode : ");
- if (work32[6]&0x00000800)
- len += sprintf(buf+len, "Pass only priority MAC packets to user\n");
- else if (work32[6]&0x00001000)
- len += sprintf(buf+len, "Pass all MAC packets to user\n");
- else if (work32[6]&0x00001800)
- len += sprintf(buf+len, "Pass all MAC packets (promiscuous) to user\n");
- else
- len += sprintf(buf+len, "Do not pass MAC packets to user\n");
- }
- len += sprintf(buf+len, "Number of multicast addresses : %d\n", work32[8]);
- len += sprintf(buf+len, "Perfect filtering for max %d multicast addresses\n",
- work32[9]);
- len += sprintf(buf+len, "Imperfect filtering for max %d multicast addresses\n",
- work32[10]);
-
- spin_unlock(&i2o_proc_lock);
-
- return len;
-}
-
-/* LAN group 0002h - Multicast MAC address table (table) */
-int i2o_proc_read_lan_mcast_addr(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
- int i;
- u8 mc_addr[8];
-
- struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- u8 mc_addr[256][8];
- } *result;
-
- result = kmalloc(sizeof(*result), GFP_KERNEL);
- if(!result)
- return -ENOMEM;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- d->controller, d->lct_data.tid, 0x0002, -1,
- NULL, 0, result, sizeof(*result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x002 LAN Multicast MAC Address");
- goto out;
- }
-
- for (i = 0; i < result->row_count; i++)
- {
- memcpy(mc_addr, result->mc_addr[i], 8);
-
- len += sprintf(buf+len, "MC MAC address[%d]: "
- "%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- i, mc_addr[0], mc_addr[1], mc_addr[2],
- mc_addr[3], mc_addr[4], mc_addr[5],
- mc_addr[6], mc_addr[7]);
- }
-out:
- spin_unlock(&i2o_proc_lock);
- kfree(result);
- return len;
-}
-
-/* LAN group 0003h - Batch Control (scalar) */
-int i2o_proc_read_lan_batch_control(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u32 work32[9];
- int token;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0003, -1, &work32, 9*4);
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0003 LAN Batch Control");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "Batch mode ");
- if (work32[0]&0x00000001)
- len += sprintf(buf+len, "disabled");
- else
- len += sprintf(buf+len, "enabled");
- if (work32[0]&0x00000002)
- len += sprintf(buf+len, " (current setting)");
- if (work32[0]&0x00000004)
- len += sprintf(buf+len, ", forced");
- else
- len += sprintf(buf+len, ", toggle");
- len += sprintf(buf+len, "\n");
-
- len += sprintf(buf+len, "Max Rx batch count : %d\n", work32[5]);
- len += sprintf(buf+len, "Max Rx batch delay : %d\n", work32[6]);
- len += sprintf(buf+len, "Max Tx batch delay : %d\n", work32[7]);
- len += sprintf(buf+len, "Max Tx batch count : %d\n", work32[8]);
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* LAN group 0004h - LAN Operation (scalar) */
-int i2o_proc_read_lan_operation(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u32 work32[5];
- int token;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0004, -1, &work32, 20);
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0004 LAN Operation");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "Packet prepadding (32b words) : %d\n", work32[0]);
- len += sprintf(buf+len, "Transmission error reporting : %s\n",
- (work32[1]&1)?"on":"off");
- len += sprintf(buf+len, "Bad packet handling : %s\n",
- (work32[1]&0x2)?"by host":"by DDM");
- len += sprintf(buf+len, "Packet orphan limit : %d\n", work32[2]);
-
- len += sprintf(buf+len, "Tx modes : 0x%08x\n", work32[3]);
- len += sprintf(buf+len, " [%s] HW CRC suppression\n",
- (work32[3]&0x00000004) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW IPv4 checksum\n",
- (work32[3]&0x00000100) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW TCP checksum\n",
- (work32[3]&0x00000200) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW UDP checksum\n",
- (work32[3]&0x00000400) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW RSVP checksum\n",
- (work32[3]&0x00000800) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW ICMP checksum\n",
- (work32[3]&0x00001000) ? "+" : "-");
- len += sprintf(buf+len, " [%s] Loopback suppression enable\n",
- (work32[3]&0x00002000) ? "+" : "-");
-
- len += sprintf(buf+len, "Rx modes : 0x%08x\n", work32[4]);
- len += sprintf(buf+len, " [%s] FCS in payload\n",
- (work32[4]&0x00000004) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW IPv4 checksum validation\n",
- (work32[4]&0x00000100) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW TCP checksum validation\n",
- (work32[4]&0x00000200) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW UDP checksum validation\n",
- (work32[4]&0x00000400) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW RSVP checksum validation\n",
- (work32[4]&0x00000800) ? "+" : "-");
- len += sprintf(buf+len, " [%s] HW ICMP checksum validation\n",
- (work32[4]&0x00001000) ? "+" : "-");
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* LAN group 0005h - Media operation (scalar) */
-int i2o_proc_read_lan_media_operation(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
-
- struct
- {
- u32 connector_type;
- u32 connection_type;
- u64 current_tx_wire_speed;
- u64 current_rx_wire_speed;
- u8 duplex_mode;
- u8 link_status;
- u8 reserved;
- u8 duplex_mode_target;
- u32 connector_type_target;
- u32 connection_type_target;
- } result;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0005, -1, &result, sizeof(result));
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token, "0x0005 LAN Media Operation");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "Connector type : %s\n",
- i2o_get_connector_type(result.connector_type));
- len += sprintf(buf+len, "Connection type : %s\n",
- i2o_get_connection_type(result.connection_type));
-
- len += sprintf(buf+len, "Current Tx wire speed : %d bps\n", (int)result.current_tx_wire_speed);
- len += sprintf(buf+len, "Current Rx wire speed : %d bps\n", (int)result.current_rx_wire_speed);
- len += sprintf(buf+len, "Duplex mode : %s duplex\n",
- (result.duplex_mode)?"Full":"Half");
-
- len += sprintf(buf+len, "Link status : ");
- switch (result.link_status)
- {
- case 0x00:
- len += sprintf(buf+len, "Unknown\n");
- break;
- case 0x01:
- len += sprintf(buf+len, "Normal\n");
- break;
- case 0x02:
- len += sprintf(buf+len, "Failure\n");
- break;
- case 0x03:
- len += sprintf(buf+len, "Reset\n");
- break;
- default:
- len += sprintf(buf+len, "Unspecified\n");
- }
-
- len += sprintf(buf+len, "Duplex mode target : ");
- switch (result.duplex_mode_target){
- case 0:
- len += sprintf(buf+len, "Half duplex\n");
- break;
- case 1:
- len += sprintf(buf+len, "Full duplex\n");
- break;
- default:
- len += sprintf(buf+len, "\n");
- }
-
- len += sprintf(buf+len, "Connector type target : %s\n",
- i2o_get_connector_type(result.connector_type_target));
- len += sprintf(buf+len, "Connection type target : %s\n",
- i2o_get_connection_type(result.connection_type_target));
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* LAN group 0006h - Alternate address (table) (optional) */
-int i2o_proc_read_lan_alt_addr(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
- int i;
- u8 alt_addr[8];
- struct
- {
- u16 result_count;
- u16 pad;
- u16 block_size;
- u8 block_status;
- u8 error_info_size;
- u16 row_count;
- u16 more_flag;
- u8 alt_addr[256][8];
- } *result;
-
- result = kmalloc(sizeof(*result), GFP_KERNEL);
- if(!result)
- return -ENOMEM;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_table(I2O_PARAMS_TABLE_GET,
- d->controller, d->lct_data.tid,
- 0x0006, -1, NULL, 0, result, sizeof(*result));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token, "0x0006 LAN Alternate Address (optional)");
- goto out;
- }
-
- for (i=0; i < result->row_count; i++)
- {
- memcpy(alt_addr,result->alt_addr[i],8);
- len += sprintf(buf+len, "Alternate address[%d]: "
- "%02X:%02X:%02X:%02X:%02X:%02X:%02X:%02X\n",
- i, alt_addr[0], alt_addr[1], alt_addr[2],
- alt_addr[3], alt_addr[4], alt_addr[5],
- alt_addr[6], alt_addr[7]);
- }
-out:
- spin_unlock(&i2o_proc_lock);
- kfree(result);
- return len;
-}
-
-
-/* LAN group 0007h - Transmit info (scalar) */
-int i2o_proc_read_lan_tx_info(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u32 work32[8];
- int token;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0007, -1, &work32, 8*4);
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0007 LAN Transmit Info");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "Tx Max SG elements per packet : %d\n", work32[0]);
- len += sprintf(buf+len, "Tx Max SG elements per chain : %d\n", work32[1]);
- len += sprintf(buf+len, "Tx Max outstanding packets : %d\n", work32[2]);
- len += sprintf(buf+len, "Tx Max packets per request : %d\n", work32[3]);
-
- len += sprintf(buf+len, "Tx modes : 0x%08x\n", work32[4]);
- len += sprintf(buf+len, " [%s] No DA in SGL\n",
- (work32[4]&0x00000002) ? "+" : "-");
- len += sprintf(buf+len, " [%s] CRC suppression\n",
- (work32[4]&0x00000004) ? "+" : "-");
- len += sprintf(buf+len, " [%s] MAC insertion\n",
- (work32[4]&0x00000010) ? "+" : "-");
- len += sprintf(buf+len, " [%s] RIF insertion\n",
- (work32[4]&0x00000020) ? "+" : "-");
- len += sprintf(buf+len, " [%s] IPv4 checksum generation\n",
- (work32[4]&0x00000100) ? "+" : "-");
- len += sprintf(buf+len, " [%s] TCP checksum generation\n",
- (work32[4]&0x00000200) ? "+" : "-");
- len += sprintf(buf+len, " [%s] UDP checksum generation\n",
- (work32[4]&0x00000400) ? "+" : "-");
- len += sprintf(buf+len, " [%s] RSVP checksum generation\n",
- (work32[4]&0x00000800) ? "+" : "-");
- len += sprintf(buf+len, " [%s] ICMP checksum generation\n",
- (work32[4]&0x00001000) ? "+" : "-");
- len += sprintf(buf+len, " [%s] Loopback enabled\n",
- (work32[4]&0x00010000) ? "+" : "-");
- len += sprintf(buf+len, " [%s] Loopback suppression enabled\n",
- (work32[4]&0x00020000) ? "+" : "-");
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* LAN group 0008h - Receive info (scalar) */
-int i2o_proc_read_lan_rx_info(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u32 work32[8];
- int token;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0008, -1, &work32, 8*4);
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0008 LAN Receive Info");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf ,"Rx Max size of chain element : %d\n", work32[0]);
- len += sprintf(buf+len, "Rx Max Buckets : %d\n", work32[1]);
- len += sprintf(buf+len, "Rx Max Buckets in Reply : %d\n", work32[3]);
- len += sprintf(buf+len, "Rx Max Packets in Bucket : %d\n", work32[4]);
- len += sprintf(buf+len, "Rx Max Buckets in Post : %d\n", work32[5]);
-
- len += sprintf(buf+len, "Rx Modes : 0x%08x\n", work32[2]);
- len += sprintf(buf+len, " [%s] FCS reception\n",
- (work32[2]&0x00000004) ? "+" : "-");
- len += sprintf(buf+len, " [%s] IPv4 checksum validation \n",
- (work32[2]&0x00000100) ? "+" : "-");
- len += sprintf(buf+len, " [%s] TCP checksum validation \n",
- (work32[2]&0x00000200) ? "+" : "-");
- len += sprintf(buf+len, " [%s] UDP checksum validation \n",
- (work32[2]&0x00000400) ? "+" : "-");
- len += sprintf(buf+len, " [%s] RSVP checksum validation \n",
- (work32[2]&0x00000800) ? "+" : "-");
- len += sprintf(buf+len, " [%s] ICMP checksum validation \n",
- (work32[2]&0x00001000) ? "+" : "-");
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-static int i2o_report_opt_field(char *buf, char *field_name,
- int field_nbr, int supp_fields, u64 *value)
-{
- if (supp_fields & (1 << field_nbr))
- return sprintf(buf, "%-24s : " FMT_U64_HEX "\n", field_name, U64_VAL(value));
- else
- return sprintf(buf, "%-24s : Not supported\n", field_name);
-}
-
-/* LAN group 0100h - LAN Historical statistics (scalar) */
-/* LAN group 0180h - Supported Optional Historical Statistics (scalar) */
-/* LAN group 0182h - Optional Non Media Specific Transmit Historical Statistics (scalar) */
-/* LAN group 0183h - Optional Non Media Specific Receive Historical Statistics (scalar) */
-
-int i2o_proc_read_lan_hist_stats(char *buf, char **start, off_t offset, int len,
- int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
-
- struct
- {
- u64 tx_packets;
- u64 tx_bytes;
- u64 rx_packets;
- u64 rx_bytes;
- u64 tx_errors;
- u64 rx_errors;
- u64 rx_dropped;
- u64 adapter_resets;
- u64 adapter_suspends;
- } stats; // 0x0100
-
- static u64 supp_groups[4]; // 0x0180
-
- struct
- {
- u64 tx_retries;
- u64 tx_directed_bytes;
- u64 tx_directed_packets;
- u64 tx_multicast_bytes;
- u64 tx_multicast_packets;
- u64 tx_broadcast_bytes;
- u64 tx_broadcast_packets;
- u64 tx_group_addr_packets;
- u64 tx_short_packets;
- } tx_stats; // 0x0182
-
- struct
- {
- u64 rx_crc_errors;
- u64 rx_directed_bytes;
- u64 rx_directed_packets;
- u64 rx_multicast_bytes;
- u64 rx_multicast_packets;
- u64 rx_broadcast_bytes;
- u64 rx_broadcast_packets;
- u64 rx_group_addr_packets;
- u64 rx_short_packets;
- u64 rx_long_packets;
- u64 rx_runt_packets;
- } rx_stats; // 0x0183
-
- struct
- {
- u64 ipv4_generate;
- u64 ipv4_validate_success;
- u64 ipv4_validate_errors;
- u64 tcp_generate;
- u64 tcp_validate_success;
- u64 tcp_validate_errors;
- u64 udp_generate;
- u64 udp_validate_success;
- u64 udp_validate_errors;
- u64 rsvp_generate;
- u64 rsvp_validate_success;
- u64 rsvp_validate_errors;
- u64 icmp_generate;
- u64 icmp_validate_success;
- u64 icmp_validate_errors;
- } chksum_stats; // 0x0184
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0100, -1, &stats, sizeof(stats));
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x100 LAN Statistics");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "Tx packets : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_packets));
- len += sprintf(buf+len, "Tx bytes : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_bytes));
- len += sprintf(buf+len, "Rx packets : " FMT_U64_HEX "\n",
- U64_VAL(&stats.rx_packets));
- len += sprintf(buf+len, "Rx bytes : " FMT_U64_HEX "\n",
- U64_VAL(&stats.rx_bytes));
- len += sprintf(buf+len, "Tx errors : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_errors));
- len += sprintf(buf+len, "Rx errors : " FMT_U64_HEX "\n",
- U64_VAL(&stats.rx_errors));
- len += sprintf(buf+len, "Rx dropped : " FMT_U64_HEX "\n",
- U64_VAL(&stats.rx_dropped));
- len += sprintf(buf+len, "Adapter resets : " FMT_U64_HEX "\n",
- U64_VAL(&stats.adapter_resets));
- len += sprintf(buf+len, "Adapter suspends : " FMT_U64_HEX "\n",
- U64_VAL(&stats.adapter_suspends));
-
- /* Optional statistics follows */
- /* Get 0x0180 to see which optional groups/fields are supported */
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0180, -1, &supp_groups, sizeof(supp_groups));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token, "0x180 LAN Supported Optional Statistics");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- if (supp_groups[1]) /* 0x0182 */
- {
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0182, -1, &tx_stats, sizeof(tx_stats));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x182 LAN Optional Tx Historical Statistics");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "==== Optional TX statistics (group 0182h)\n");
-
- len += i2o_report_opt_field(buf+len, "Tx RetryCount",
- 0, supp_groups[1], &tx_stats.tx_retries);
- len += i2o_report_opt_field(buf+len, "Tx DirectedBytes",
- 1, supp_groups[1], &tx_stats.tx_directed_bytes);
- len += i2o_report_opt_field(buf+len, "Tx DirectedPackets",
- 2, supp_groups[1], &tx_stats.tx_directed_packets);
- len += i2o_report_opt_field(buf+len, "Tx MulticastBytes",
- 3, supp_groups[1], &tx_stats.tx_multicast_bytes);
- len += i2o_report_opt_field(buf+len, "Tx MulticastPackets",
- 4, supp_groups[1], &tx_stats.tx_multicast_packets);
- len += i2o_report_opt_field(buf+len, "Tx BroadcastBytes",
- 5, supp_groups[1], &tx_stats.tx_broadcast_bytes);
- len += i2o_report_opt_field(buf+len, "Tx BroadcastPackets",
- 6, supp_groups[1], &tx_stats.tx_broadcast_packets);
- len += i2o_report_opt_field(buf+len, "Tx TotalGroupAddrPackets",
- 7, supp_groups[1], &tx_stats.tx_group_addr_packets);
- len += i2o_report_opt_field(buf+len, "Tx TotalPacketsTooShort",
- 8, supp_groups[1], &tx_stats.tx_short_packets);
- }
-
- if (supp_groups[2]) /* 0x0183 */
- {
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0183, -1, &rx_stats, sizeof(rx_stats));
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x183 LAN Optional Rx Historical Stats");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "==== Optional RX statistics (group 0183h)\n");
-
- len += i2o_report_opt_field(buf+len, "Rx CRCErrorCount",
- 0, supp_groups[2], &rx_stats.rx_crc_errors);
- len += i2o_report_opt_field(buf+len, "Rx DirectedBytes",
- 1, supp_groups[2], &rx_stats.rx_directed_bytes);
- len += i2o_report_opt_field(buf+len, "Rx DirectedPackets",
- 2, supp_groups[2], &rx_stats.rx_directed_packets);
- len += i2o_report_opt_field(buf+len, "Rx MulticastBytes",
- 3, supp_groups[2], &rx_stats.rx_multicast_bytes);
- len += i2o_report_opt_field(buf+len, "Rx MulticastPackets",
- 4, supp_groups[2], &rx_stats.rx_multicast_packets);
- len += i2o_report_opt_field(buf+len, "Rx BroadcastBytes",
- 5, supp_groups[2], &rx_stats.rx_broadcast_bytes);
- len += i2o_report_opt_field(buf+len, "Rx BroadcastPackets",
- 6, supp_groups[2], &rx_stats.rx_broadcast_packets);
- len += i2o_report_opt_field(buf+len, "Rx TotalGroupAddrPackets",
- 7, supp_groups[2], &rx_stats.rx_group_addr_packets);
- len += i2o_report_opt_field(buf+len, "Rx TotalPacketsTooShort",
- 8, supp_groups[2], &rx_stats.rx_short_packets);
- len += i2o_report_opt_field(buf+len, "Rx TotalPacketsTooLong",
- 9, supp_groups[2], &rx_stats.rx_long_packets);
- len += i2o_report_opt_field(buf+len, "Rx TotalPacketsRunt",
- 10, supp_groups[2], &rx_stats.rx_runt_packets);
- }
-
- if (supp_groups[3]) /* 0x0184 */
- {
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0184, -1, &chksum_stats, sizeof(chksum_stats));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x184 LAN Optional Chksum Historical Stats");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "==== Optional CHKSUM statistics (group 0x0184)\n");
-
- len += i2o_report_opt_field(buf+len, "IPv4 Generate",
- 0, supp_groups[3], &chksum_stats.ipv4_generate);
- len += i2o_report_opt_field(buf+len, "IPv4 ValidateSuccess",
- 1, supp_groups[3], &chksum_stats.ipv4_validate_success);
- len += i2o_report_opt_field(buf+len, "IPv4 ValidateError",
- 2, supp_groups[3], &chksum_stats.ipv4_validate_errors);
- len += i2o_report_opt_field(buf+len, "TCP Generate",
- 3, supp_groups[3], &chksum_stats.tcp_generate);
- len += i2o_report_opt_field(buf+len, "TCP ValidateSuccess",
- 4, supp_groups[3], &chksum_stats.tcp_validate_success);
- len += i2o_report_opt_field(buf+len, "TCP ValidateError",
- 5, supp_groups[3], &chksum_stats.tcp_validate_errors);
- len += i2o_report_opt_field(buf+len, "UDP Generate",
- 6, supp_groups[3], &chksum_stats.udp_generate);
- len += i2o_report_opt_field(buf+len, "UDP ValidateSuccess",
- 7, supp_groups[3], &chksum_stats.udp_validate_success);
- len += i2o_report_opt_field(buf+len, "UDP ValidateError",
- 8, supp_groups[3], &chksum_stats.udp_validate_errors);
- len += i2o_report_opt_field(buf+len, "RSVP Generate",
- 9, supp_groups[3], &chksum_stats.rsvp_generate);
- len += i2o_report_opt_field(buf+len, "RSVP ValidateSuccess",
- 10, supp_groups[3], &chksum_stats.rsvp_validate_success);
- len += i2o_report_opt_field(buf+len, "RSVP ValidateError",
- 11, supp_groups[3], &chksum_stats.rsvp_validate_errors);
- len += i2o_report_opt_field(buf+len, "ICMP Generate",
- 12, supp_groups[3], &chksum_stats.icmp_generate);
- len += i2o_report_opt_field(buf+len, "ICMP ValidateSuccess",
- 13, supp_groups[3], &chksum_stats.icmp_validate_success);
- len += i2o_report_opt_field(buf+len, "ICMP ValidateError",
- 14, supp_groups[3], &chksum_stats.icmp_validate_errors);
- }
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* LAN group 0200h - Required Ethernet Statistics (scalar) */
-/* LAN group 0280h - Optional Ethernet Statistics Supported (scalar) */
-/* LAN group 0281h - Optional Ethernet Historical Statistics (scalar) */
-int i2o_proc_read_lan_eth_stats(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- int token;
-
- struct
- {
- u64 rx_align_errors;
- u64 tx_one_collisions;
- u64 tx_multiple_collisions;
- u64 tx_deferred;
- u64 tx_late_collisions;
- u64 tx_max_collisions;
- u64 tx_carrier_lost;
- u64 tx_excessive_deferrals;
- } stats;
-
- static u64 supp_fields;
- struct
- {
- u64 rx_overrun;
- u64 tx_underrun;
- u64 tx_heartbeat_failure;
- } hist_stats;
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0200, -1, &stats, sizeof(stats));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0200 LAN Ethernet Statistics");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "Rx alignment errors : " FMT_U64_HEX "\n",
- U64_VAL(&stats.rx_align_errors));
- len += sprintf(buf+len, "Tx one collisions : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_one_collisions));
- len += sprintf(buf+len, "Tx multicollisions : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_multiple_collisions));
- len += sprintf(buf+len, "Tx deferred : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_deferred));
- len += sprintf(buf+len, "Tx late collisions : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_late_collisions));
- len += sprintf(buf+len, "Tx max collisions : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_max_collisions));
- len += sprintf(buf+len, "Tx carrier lost : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_carrier_lost));
- len += sprintf(buf+len, "Tx excessive deferrals : " FMT_U64_HEX "\n",
- U64_VAL(&stats.tx_excessive_deferrals));
-
- /* Optional Ethernet statistics follows */
- /* Get 0x0280 to see which optional fields are supported */
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0280, -1, &supp_fields, sizeof(supp_fields));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0280 LAN Supported Optional Ethernet Statistics");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- if (supp_fields) /* 0x0281 */
- {
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0281, -1, &stats, sizeof(stats));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0281 LAN Optional Ethernet Statistics");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "==== Optional ETHERNET statistics (group 0x0281)\n");
-
- len += i2o_report_opt_field(buf+len, "Rx Overrun",
- 0, supp_fields, &hist_stats.rx_overrun);
- len += i2o_report_opt_field(buf+len, "Tx Underrun",
- 1, supp_fields, &hist_stats.tx_underrun);
- len += i2o_report_opt_field(buf+len, "Tx HeartbeatFailure",
- 2, supp_fields, &hist_stats.tx_heartbeat_failure);
- }
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* LAN group 0300h - Required Token Ring Statistics (scalar) */
-/* LAN group 0380h, 0381h - Optional Statistics not yet defined (TODO) */
-int i2o_proc_read_lan_tr_stats(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u64 work64[13];
- int token;
-
- static char *ring_status[] =
- {
- "",
- "",
- "",
- "",
- "",
- "Ring Recovery",
- "Single Station",
- "Counter Overflow",
- "Remove Received",
- "",
- "Auto-Removal Error 1",
- "Lobe Wire Fault",
- "Transmit Beacon",
- "Soft Error",
- "Hard Error",
- "Signal Loss"
- };
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0300, -1, &work64, sizeof(work64));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0300 Token Ring Statistics");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf, "LineErrors : " FMT_U64_HEX "\n",
- U64_VAL(&work64[0]));
- len += sprintf(buf+len, "LostFrames : " FMT_U64_HEX "\n",
- U64_VAL(&work64[1]));
- len += sprintf(buf+len, "ACError : " FMT_U64_HEX "\n",
- U64_VAL(&work64[2]));
- len += sprintf(buf+len, "TxAbortDelimiter : " FMT_U64_HEX "\n",
- U64_VAL(&work64[3]));
- len += sprintf(buf+len, "BursErrors : " FMT_U64_HEX "\n",
- U64_VAL(&work64[4]));
- len += sprintf(buf+len, "FrameCopiedErrors : " FMT_U64_HEX "\n",
- U64_VAL(&work64[5]));
- len += sprintf(buf+len, "FrequencyErrors : " FMT_U64_HEX "\n",
- U64_VAL(&work64[6]));
- len += sprintf(buf+len, "InternalErrors : " FMT_U64_HEX "\n",
- U64_VAL(&work64[7]));
- len += sprintf(buf+len, "LastRingStatus : %s\n", ring_status[work64[8]]);
- len += sprintf(buf+len, "TokenError : " FMT_U64_HEX "\n",
- U64_VAL(&work64[9]));
- len += sprintf(buf+len, "UpstreamNodeAddress : " FMT_U64_HEX "\n",
- U64_VAL(&work64[10]));
- len += sprintf(buf+len, "LastRingID : " FMT_U64_HEX "\n",
- U64_VAL(&work64[11]));
- len += sprintf(buf+len, "LastBeaconType : " FMT_U64_HEX "\n",
- U64_VAL(&work64[12]));
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-/* LAN group 0400h - Required FDDI Statistics (scalar) */
-/* LAN group 0480h, 0481h - Optional Statistics, not yet defined (TODO) */
-int i2o_proc_read_lan_fddi_stats(char *buf, char **start, off_t offset,
- int len, int *eof, void *data)
-{
- struct i2o_device *d = (struct i2o_device*)data;
- static u64 work64[11];
- int token;
-
- static char *conf_state[] =
- {
- "Isolated",
- "Local a",
- "Local b",
- "Local ab",
- "Local s",
- "Wrap a",
- "Wrap b",
- "Wrap ab",
- "Wrap s",
- "C-Wrap a",
- "C-Wrap b",
- "C-Wrap s",
- "Through",
- };
-
- static char *ring_state[] =
- {
- "Isolated",
- "Non-op",
- "Rind-op",
- "Detect",
- "Non-op-Dup",
- "Ring-op-Dup",
- "Directed",
- "Trace"
- };
-
- static char *link_state[] =
- {
- "Off",
- "Break",
- "Trace",
- "Connect",
- "Next",
- "Signal",
- "Join",
- "Verify",
- "Active",
- "Maintenance"
- };
-
- spin_lock(&i2o_proc_lock);
- len = 0;
-
- token = i2o_query_scalar(d->controller, d->lct_data.tid,
- 0x0400, -1, &work64, sizeof(work64));
-
- if (token < 0) {
- len += i2o_report_query_status(buf+len, token,"0x0400 FDDI Required Statistics");
- spin_unlock(&i2o_proc_lock);
- return len;
- }
-
- len += sprintf(buf+len, "ConfigurationState : %s\n", conf_state[work64[0]]);
- len += sprintf(buf+len, "UpstreamNode : " FMT_U64_HEX "\n",
- U64_VAL(&work64[1]));
- len += sprintf(buf+len, "DownStreamNode : " FMT_U64_HEX "\n",
- U64_VAL(&work64[2]));
- len += sprintf(buf+len, "FrameErrors : " FMT_U64_HEX "\n",
- U64_VAL(&work64[3]));
- len += sprintf(buf+len, "FramesLost : " FMT_U64_HEX "\n",
- U64_VAL(&work64[4]));
- len += sprintf(buf+len, "RingMgmtState : %s\n", ring_state[work64[5]]);
- len += sprintf(buf+len, "LCTFailures : " FMT_U64_HEX "\n",
- U64_VAL(&work64[6]));
- len += sprintf(buf+len, "LEMRejects : " FMT_U64_HEX "\n",
- U64_VAL(&work64[7]));
- len += sprintf(buf+len, "LEMCount : " FMT_U64_HEX "\n",
- U64_VAL(&work64[8]));
- len += sprintf(buf+len, "LConnectionState : %s\n",
- link_state[work64[9]]);
-
- spin_unlock(&i2o_proc_lock);
- return len;
-}
-
-static int i2o_proc_create_entries(void *data, i2o_proc_entry *pentry,
- struct proc_dir_entry *parent)
-{
- struct proc_dir_entry *ent;
-
- while(pentry->name != NULL)
- {
- ent = create_proc_entry(pentry->name, pentry->mode, parent);
- if(!ent) return -1;
-
- ent->data = data;
- ent->read_proc = pentry->read_proc;
- ent->write_proc = pentry->write_proc;
- if(pentry->fops_proc)
- ent->proc_fops = pentry->fops_proc;
-
- ent->nlink = 1;
-
- pentry++;
- }
-
- return 0;
-}
-
-static void i2o_proc_remove_entries(i2o_proc_entry *pentry,
- struct proc_dir_entry *parent)
-{
- while(pentry->name != NULL)
- {
- remove_proc_entry(pentry->name, parent);
- pentry++;
- }
-}
-
-static int i2o_proc_add_controller(struct i2o_controller *pctrl,
- struct proc_dir_entry *root )
-{
- struct proc_dir_entry *dir, *dir1;
- struct i2o_device *dev;
- char buff[10];
-
- sprintf(buff, "iop%d", pctrl->unit);
-
- dir = proc_mkdir(buff, root);
- if(!dir)
- return -1;
-
- pctrl->proc_entry = dir;
-
- i2o_proc_create_entries(pctrl, generic_iop_entries, dir);
-
- for(dev = pctrl->devices; dev; dev = dev->next)
- {
- sprintf(buff, "%0#5x", dev->lct_data.tid);
-
- dir1 = proc_mkdir(buff, dir);
- dev->proc_entry = dir1;
-
- if(!dir1)
- printk(KERN_INFO "i2o_proc: Could not allocate proc dir\n");
-
- i2o_proc_add_device(dev, dir1);
- }
-
- return 0;
-}
-
-void i2o_proc_new_dev(struct i2o_controller *c, struct i2o_device *d)
-{
- char buff[10];
-
-#ifdef DRIVERDEBUG
- printk(KERN_INFO "Adding new device to /proc/i2o/iop%d\n", c->unit);
-#endif
- sprintf(buff, "%0#5x", d->lct_data.tid);
-
- d->proc_entry = proc_mkdir(buff, c->proc_entry);
-
- if(!d->proc_entry)
- {
- printk(KERN_WARNING "i2o: Could not allocate procdir!\n");
- return;
- }
-
- i2o_proc_add_device(d, d->proc_entry);
-}
-
-void i2o_proc_add_device(struct i2o_device *dev, struct proc_dir_entry *dir)
-{
- i2o_proc_create_entries(dev, generic_dev_entries, dir);
-
- /* Inform core that we want updates about this device's status */
- i2o_device_notify_on(dev, &i2o_proc_handler);
- switch(dev->lct_data.class_id)
- {
- case I2O_CLASS_SCSI_PERIPHERAL:
- case I2O_CLASS_RANDOM_BLOCK_STORAGE:
- i2o_proc_create_entries(dev, rbs_dev_entries, dir);
- break;
- case I2O_CLASS_LAN:
- i2o_proc_create_entries(dev, lan_entries, dir);
- switch(dev->lct_data.sub_class)
- {
- case I2O_LAN_ETHERNET:
- i2o_proc_create_entries(dev, lan_eth_entries, dir);
- break;
- case I2O_LAN_FDDI:
- i2o_proc_create_entries(dev, lan_fddi_entries, dir);
- break;
- case I2O_LAN_TR:
- i2o_proc_create_entries(dev, lan_tr_entries, dir);
- break;
- default:
- break;
- }
- break;
- default:
- break;
- }
-}
-
-static void i2o_proc_remove_controller(struct i2o_controller *pctrl,
- struct proc_dir_entry *parent)
-{
- char buff[10];
- struct i2o_device *dev;
-
- /* Remove unused device entries */
- for(dev=pctrl->devices; dev; dev=dev->next)
- i2o_proc_remove_device(dev);
-
- if(!atomic_read(&pctrl->proc_entry->count))
- {
- sprintf(buff, "iop%d", pctrl->unit);
-
- i2o_proc_remove_entries(generic_iop_entries, pctrl->proc_entry);
- remove_proc_entry(buff, parent);
- pctrl->proc_entry = NULL;
- }
-}
-
-void i2o_proc_remove_device(struct i2o_device *dev)
-{
- struct proc_dir_entry *de=dev->proc_entry;
- char dev_id[10];
-
- sprintf(dev_id, "%0#5x", dev->lct_data.tid);
-
- i2o_device_notify_off(dev, &i2o_proc_handler);
- /* Would it be safe to remove _files_ even if they are in use? */
- if((de) && (!atomic_read(&de->count)))
- {
- i2o_proc_remove_entries(generic_dev_entries, de);
- switch(dev->lct_data.class_id)
- {
- case I2O_CLASS_SCSI_PERIPHERAL:
- case I2O_CLASS_RANDOM_BLOCK_STORAGE:
- i2o_proc_remove_entries(rbs_dev_entries, de);
- break;
- case I2O_CLASS_LAN:
- {
- i2o_proc_remove_entries(lan_entries, de);
- switch(dev->lct_data.sub_class)
- {
- case I2O_LAN_ETHERNET:
- i2o_proc_remove_entries(lan_eth_entries, de);
- break;
- case I2O_LAN_FDDI:
- i2o_proc_remove_entries(lan_fddi_entries, de);
- break;
- case I2O_LAN_TR:
- i2o_proc_remove_entries(lan_tr_entries, de);
- break;
- }
- }
- }
- remove_proc_entry(dev_id, dev->controller->proc_entry);
- }
-}
-
-void i2o_proc_dev_del(struct i2o_controller *c, struct i2o_device *d)
-{
-#ifdef DRIVERDEBUG
- printk(KERN_INFO "Deleting device %d from iop%d\n",
- d->lct_data.tid, c->unit);
-#endif
-
- i2o_proc_remove_device(d);
-}
-
-static int create_i2o_procfs(void)
-{
- struct i2o_controller *pctrl = NULL;
- int i;
-
- i2o_proc_dir_root = proc_mkdir("i2o", NULL);
- if(!i2o_proc_dir_root)
- return -1;
- i2o_proc_dir_root->owner = THIS_MODULE;
-
- for(i = 0; i < MAX_I2O_CONTROLLERS; i++)
- {
- pctrl = i2o_find_controller(i);
- if(pctrl)
- {
- i2o_proc_add_controller(pctrl, i2o_proc_dir_root);
- i2o_unlock_controller(pctrl);
- }
- };
-
- return 0;
-}
-
-static int __exit destroy_i2o_procfs(void)
-{
- struct i2o_controller *pctrl = NULL;
- int i;
-
- for(i = 0; i < MAX_I2O_CONTROLLERS; i++)
- {
- pctrl = i2o_find_controller(i);
- if(pctrl)
- {
- i2o_proc_remove_controller(pctrl, i2o_proc_dir_root);
- i2o_unlock_controller(pctrl);
- }
- }
-
- if(!atomic_read(&i2o_proc_dir_root->count))
- remove_proc_entry("i2o", NULL);
- else
- return -1;
-
- return 0;
-}
-
-int __init i2o_proc_init(void)
-{
- if (i2o_install_handler(&i2o_proc_handler) < 0)
- {
- printk(KERN_ERR "i2o_proc: Unable to install PROC handler.\n");
- return 0;
- }
-
- if(create_i2o_procfs())
- return -EBUSY;
-
- return 0;
-}
-
-MODULE_AUTHOR("Deepak Saxena");
-MODULE_DESCRIPTION("I2O procfs Handler");
-MODULE_LICENSE("GPL");
-
-static void __exit i2o_proc_exit(void)
-{
- destroy_i2o_procfs();
- i2o_remove_handler(&i2o_proc_handler);
-}
-
-#ifdef MODULE
-module_init(i2o_proc_init);
-#endif
-module_exit(i2o_proc_exit);
-
diff -L drivers/message/i2o/i2o_scsi.c -puN drivers/message/i2o/i2o_scsi.c~i2o-build_99 /dev/null
--- 25/drivers/message/i2o/i2o_scsi.c
+++ /dev/null Thu Apr 11 07:25:15 2002
@@ -1,1047 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * For the avoidance of doubt the "preferred form" of this code is one which
- * is in an open non patent encumbered format. Where cryptographic key signing
- * forms part of the process of creating an executable the information
- * including keys needed to generate an equivalently functional executable
- * are deemed to be part of the source code.
- *
- * Complications for I2O scsi
- *
- * o Each (bus,lun) is a logical device in I2O. We keep a map
- * table. We spoof failed selection for unmapped units
- * o Request sense buffers can come back for free.
- * o Scatter gather is a bit dynamic. We have to investigate at
- * setup time.
- * o Some of our resources are dynamically shared. The i2o core
- * needs a message reservation protocol to avoid swap v net
- * deadlocking. We need to back off queue requests.
- *
- * In general the firmware wants to help. Where its help isn't performance
- * useful we just ignore the aid. Its not worth the code in truth.
- *
- * Fixes/additions:
- * Steve Ralston:
- * Scatter gather now works
- * Markus Lidel <Markus.Lidel@shadowconnect.com>:
- * Minor fixes for 2.6.
- *
- * To Do:
- * 64bit cleanups
- * Fix the resource management problems.
- */
-
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/string.h>
-#include <linux/ioport.h>
-#include <linux/jiffies.h>
-#include <linux/interrupt.h>
-#include <linux/timer.h>
-#include <linux/delay.h>
-#include <linux/proc_fs.h>
-#include <linux/prefetch.h>
-#include <linux/pci.h>
-#include <asm/dma.h>
-#include <asm/system.h>
-#include <asm/io.h>
-#include <asm/atomic.h>
-#include <linux/blkdev.h>
-#include <linux/i2o.h>
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_host.h>
-
-
-#define VERSION_STRING "Version 0.1.2"
-
-//#define DRIVERDEBUG
-
-#ifdef DRIVERDEBUG
-#define dprintk(s, args...) printk(s, ## args)
-#else
-#define dprintk(s, args...)
-#endif
-
-#define I2O_SCSI_CAN_QUEUE 4
-#define MAXHOSTS 32
-
-struct i2o_scsi_host
-{
- struct i2o_controller *controller;
- s16 task[16][8]; /* Allow 16 devices for now */
- unsigned long tagclock[16][8]; /* Tag clock for queueing */
- s16 bus_task; /* The adapter TID */
-};
-
-static int scsi_context;
-static int lun_done;
-static int i2o_scsi_hosts;
-
-static u32 *retry[32];
-static struct i2o_controller *retry_ctrl[32];
-static struct timer_list retry_timer;
-static spinlock_t retry_lock = SPIN_LOCK_UNLOCKED;
-static int retry_ct = 0;
-
-static atomic_t queue_depth;
-
-/*
- * SG Chain buffer support...
- */
-
-#define SG_MAX_FRAGS 64
-
-/*
- * FIXME: we should allocate one of these per bus we find as we
- * locate them not in a lump at boot.
- */
-
-typedef struct _chain_buf
-{
- u32 sg_flags_cnt[SG_MAX_FRAGS];
- u32 sg_buf[SG_MAX_FRAGS];
-} chain_buf;
-
-#define SG_CHAIN_BUF_SZ sizeof(chain_buf)
-
-#define SG_MAX_BUFS (i2o_num_controllers * I2O_SCSI_CAN_QUEUE)
-#define SG_CHAIN_POOL_SZ (SG_MAX_BUFS * SG_CHAIN_BUF_SZ)
-
-static int max_sg_len = 0;
-static chain_buf *sg_chain_pool = NULL;
-static int sg_chain_tag = 0;
-static int sg_max_frags = SG_MAX_FRAGS;
-
-/**
- * i2o_retry_run - retry on timeout
- * @f: unused
- *
- * Retry congested frames. This actually needs pushing down into
- * i2o core. We should only bother the OSM with this when we can't
- * queue and retry the frame. Or perhaps we should call the OSM
- * and its default handler should be this in the core, and this
- * call a 2nd "I give up" handler in the OSM ?
- */
-
-static void i2o_retry_run(unsigned long f)
-{
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&retry_lock, flags);
- for(i=0;i<retry_ct;i++)
- i2o_post_message(retry_ctrl[i], virt_to_bus(retry[i]));
- retry_ct=0;
- spin_unlock_irqrestore(&retry_lock, flags);
-}
-
-/**
- * flush_pending - empty the retry queue
- *
- * Turn each of the pending commands into a NOP and post it back
- * to the controller to clear it.
- */
-
-static void flush_pending(void)
-{
- int i;
- unsigned long flags;
-
- spin_lock_irqsave(&retry_lock, flags);
- for(i=0;i<retry_ct;i++)
- {
- retry[i][0]&=~0xFFFFFF;
- retry[i][0]|=I2O_CMD_UTIL_NOP<<24;
- i2o_post_message(retry_ctrl[i],virt_to_bus(retry[i]));
- }
- retry_ct=0;
- spin_unlock_irqrestore(&retry_lock, flags);
-}
-
-/**
- * i2o_scsi_reply - scsi message reply processor
- * @h: our i2o handler
- * @c: controller issuing the reply
- * @msg: the message from the controller (mapped)
- *
- * Process reply messages (interrupts in normal scsi controller think).
- * We can get a variety of messages to process. The normal path is
- * scsi command completions. We must also deal with IOP failures,
- * the reply to a bus reset and the reply to a LUN query.
- *
- * Locks: the queue lock is taken to call the completion handler
- */
-
-static void i2o_scsi_reply(struct i2o_handler *h, struct i2o_controller *c, struct i2o_message *msg)
-{
- struct scsi_cmnd *current_command;
- spinlock_t *lock;
- u32 *m = (u32 *)msg;
- u8 as,ds,st;
- unsigned long flags;
-
- if(m[0] & (1<<13))
- {
- printk("IOP fail.\n");
- printk("From %d To %d Cmd %d.\n",
- (m[1]>>12)&0xFFF,
- m[1]&0xFFF,
- m[1]>>24);
- printk("Failure Code %d.\n", m[4]>>24);
- if(m[4]&(1<<16))
- printk("Format error.\n");
- if(m[4]&(1<<17))
- printk("Path error.\n");
- if(m[4]&(1<<18))
- printk("Path State.\n");
- if(m[4]&(1<<18))
- printk("Congestion.\n");
-
- m=(u32 *)bus_to_virt(m[7]);
- printk("Failing message is %p.\n", m);
-
- /* This isnt a fast path .. */
- spin_lock_irqsave(&retry_lock, flags);
-
- if((m[4]&(1<<18)) && retry_ct < 32)
- {
- retry_ctrl[retry_ct]=c;
- retry[retry_ct]=m;
- if(!retry_ct++)
- {
- retry_timer.expires=jiffies+1;
- add_timer(&retry_timer);
- }
- spin_unlock_irqrestore(&retry_lock, flags);
- }
- else
- {
- spin_unlock_irqrestore(&retry_lock, flags);
- /* Create a scsi error for this */
- current_command = (struct scsi_cmnd *)i2o_context_list_get(m[3], c);
- if(!current_command)
- return;
-
- lock = current_command->device->host->host_lock;
- printk("Aborted %ld\n", current_command->serial_number);
-
- spin_lock_irqsave(lock, flags);
- current_command->result = DID_ERROR << 16;
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(lock, flags);
-
- /* Now flush the message by making it a NOP */
- m[0]&=0x00FFFFFF;
- m[0]|=(I2O_CMD_UTIL_NOP)<<24;
- i2o_post_message(c,virt_to_bus(m));
- }
- return;
- }
-
- prefetchw(&queue_depth);
-
-
- /*
- * Low byte is device status, next is adapter status,
- * (then one byte reserved), then request status.
- */
- ds=(u8)le32_to_cpu(m[4]);
- as=(u8)le32_to_cpu(m[4]>>8);
- st=(u8)le32_to_cpu(m[4]>>24);
-
- dprintk(KERN_INFO "i2o got a scsi reply %08X: ", m[0]);
- dprintk(KERN_INFO "m[2]=%08X: ", m[2]);
- dprintk(KERN_INFO "m[4]=%08X\n", m[4]);
-
- if(m[2]&0x80000000)
- {
- if(m[2]&0x40000000)
- {
- dprintk(KERN_INFO "Event.\n");
- lun_done=1;
- return;
- }
- printk(KERN_INFO "i2o_scsi: bus reset completed.\n");
- return;
- }
-
- current_command = (struct scsi_cmnd *)i2o_context_list_get(m[3], c);
-
- /*
- * Is this a control request coming back - eg an abort ?
- */
-
- atomic_dec(&queue_depth);
-
- if(current_command==NULL)
- {
- if(st)
- dprintk(KERN_WARNING "SCSI abort: %08X", m[4]);
- dprintk(KERN_INFO "SCSI abort completed.\n");
- return;
- }
-
- dprintk(KERN_INFO "Completed %ld\n", current_command->serial_number);
-
- if(st == 0x06)
- {
- if(le32_to_cpu(m[5]) < current_command->underflow)
- {
- int i;
- printk(KERN_ERR "SCSI: underflow 0x%08X 0x%08X\n",
- le32_to_cpu(m[5]), current_command->underflow);
- printk("Cmd: ");
- for(i=0;i<15;i++)
- printk("%02X ", current_command->cmnd[i]);
- printk(".\n");
- }
- else st=0;
- }
-
- if(st)
- {
- /* An error has occurred */
-
- dprintk(KERN_WARNING "SCSI error %08X", m[4]);
-
- if (as == 0x0E)
- /* SCSI Reset */
- current_command->result = DID_RESET << 16;
- else if (as == 0x0F)
- current_command->result = DID_PARITY << 16;
- else
- current_command->result = DID_ERROR << 16;
- }
- else
- /*
- * It worked maybe ?
- */
- current_command->result = DID_OK << 16 | ds;
-
- if (current_command->use_sg) {
- pci_unmap_sg(c->pdev,
- (struct scatterlist *)current_command->buffer,
- current_command->use_sg,
- current_command->sc_data_direction);
- } else if (current_command->request_bufflen) {
- pci_unmap_single(c->pdev,
- (dma_addr_t)((long)current_command->SCp.ptr),
- current_command->request_bufflen,
- current_command->sc_data_direction);
- }
-
- lock = current_command->device->host->host_lock;
- spin_lock_irqsave(lock, flags);
- current_command->scsi_done(current_command);
- spin_unlock_irqrestore(lock, flags);
- return;
-}
-
-struct i2o_handler i2o_scsi_handler = {
- .reply = i2o_scsi_reply,
- .name = "I2O SCSI OSM",
- .class = I2O_CLASS_SCSI_PERIPHERAL,
-};
-
-/**
- * i2o_find_lun - report the lun of an i2o device
- * @c: i2o controller owning the device
- * @d: i2o disk device
- * @target: filled in with target id
- * @lun: filled in with target lun
- *
- * Query an I2O device to find out its SCSI lun and target numbering. We
- * don't currently handle some of the fancy SCSI-3 stuff although our
- * querying is sufficient to do so.
- */
-
-static int i2o_find_lun(struct i2o_controller *c, struct i2o_device *d, int *target, int *lun)
-{
- u8 reply[8];
-
- if(i2o_query_scalar(c, d->lct_data.tid, 0, 3, reply, 4)<0)
- return -1;
-
- *target=reply[0];
-
- if(i2o_query_scalar(c, d->lct_data.tid, 0, 4, reply, 8)<0)
- return -1;
-
- *lun=reply[1];
-
- dprintk(KERN_INFO "SCSI (%d,%d)\n", *target, *lun);
- return 0;
-}
-
-/**
- * i2o_scsi_init - initialize an i2o device for scsi
- * @c: i2o controller owning the device
- * @d: scsi controller
- * @shpnt: scsi device we wish it to become
- *
- * Enumerate the scsi peripheral/fibre channel peripheral class
- * devices that are children of the controller. From that we build
- * a translation map for the command queue code. Since I2O works on
- * its own tid's we effectively have to think backwards to get what
- * the midlayer wants
- */
-
-static void i2o_scsi_init(struct i2o_controller *c, struct i2o_device *d, struct Scsi_Host *shpnt)
-{
- struct i2o_device *unit;
- struct i2o_scsi_host *h =(struct i2o_scsi_host *)shpnt->hostdata;
- int lun;
- int target;
-
- h->controller=c;
- h->bus_task=d->lct_data.tid;
-
- for(target=0;target<16;target++)
- for(lun=0;lun<8;lun++)
- h->task[target][lun] = -1;
-
- for(unit=c->devices;unit!=NULL;unit=unit->next)
- {
- dprintk(KERN_INFO "Class %03X, parent %d, want %d.\n",
- unit->lct_data.class_id, unit->lct_data.parent_tid, d->lct_data.tid);
-
- /* Only look at scsi and fc devices */
- if ( (unit->lct_data.class_id != I2O_CLASS_SCSI_PERIPHERAL)
- && (unit->lct_data.class_id != I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL)
- )
- continue;
-
- /* On our bus ? */
- dprintk(KERN_INFO "Found a disk (%d).\n", unit->lct_data.tid);
- if ((unit->lct_data.parent_tid == d->lct_data.tid)
- || (unit->lct_data.parent_tid == d->lct_data.parent_tid)
- )
- {
- u16 limit;
- dprintk(KERN_INFO "Its ours.\n");
- if(i2o_find_lun(c, unit, &target, &lun)==-1)
- {
- printk(KERN_ERR "i2o_scsi: Unable to get lun for tid %d.\n", unit->lct_data.tid);
- continue;
- }
- dprintk(KERN_INFO "Found disk %d %d.\n", target, lun);
- h->task[target][lun]=unit->lct_data.tid;
- h->tagclock[target][lun]=jiffies;
-
- /* Get the max fragments/request */
- i2o_query_scalar(c, d->lct_data.tid, 0xF103, 3, &limit, 2);
-
- /* sanity */
- if ( limit == 0 )
- {
- printk(KERN_WARNING "i2o_scsi: Ignoring unreasonable SG limit of 0 from IOP!\n");
- limit = 1;
- }
-
- shpnt->sg_tablesize = limit;
-
- dprintk(KERN_INFO "i2o_scsi: set scatter-gather to %d.\n",
- shpnt->sg_tablesize);
- }
- }
-}
-
-/**
- * i2o_scsi_detect - probe for I2O scsi devices
- * @tpnt: scsi layer template
- *
- * I2O is a little odd here. The I2O core already knows what the
- * devices are. It also knows them by disk and tape as well as
- * by controller. We register each I2O scsi class object as a
- * scsi controller and then let the enumeration fake up the rest
- */
-
-static int i2o_scsi_detect(struct scsi_host_template * tpnt)
-{
- struct Scsi_Host *shpnt = NULL;
- int i;
- int count;
-
- printk(KERN_INFO "i2o_scsi.c: %s\n", VERSION_STRING);
-
- if(i2o_install_handler(&i2o_scsi_handler)<0)
- {
- printk(KERN_ERR "i2o_scsi: Unable to install OSM handler.\n");
- return 0;
- }
- scsi_context = i2o_scsi_handler.context;
-
- if((sg_chain_pool = kmalloc(SG_CHAIN_POOL_SZ, GFP_KERNEL)) == NULL)
- {
- printk(KERN_INFO "i2o_scsi: Unable to alloc %d byte SG chain buffer pool.\n", SG_CHAIN_POOL_SZ);
- printk(KERN_INFO "i2o_scsi: SG chaining DISABLED!\n");
- sg_max_frags = 11;
- }
- else
- {
- printk(KERN_INFO " chain_pool: %d bytes @ %p\n", SG_CHAIN_POOL_SZ, sg_chain_pool);
- printk(KERN_INFO " (%d byte buffers X %d can_queue X %d i2o controllers)\n",
- SG_CHAIN_BUF_SZ, I2O_SCSI_CAN_QUEUE, i2o_num_controllers);
- sg_max_frags = SG_MAX_FRAGS; // 64
- }
-
- init_timer(&retry_timer);
- retry_timer.data = 0UL;
- retry_timer.function = i2o_retry_run;
-
-// printk("SCSI OSM at %d.\n", scsi_context);
-
- for (count = 0, i = 0; i < MAX_I2O_CONTROLLERS; i++)
- {
- struct i2o_controller *c=i2o_find_controller(i);
- struct i2o_device *d;
- /*
- * This controller doesn't exist.
- */
-
- if(c==NULL)
- continue;
-
- /*
- * Fixme - we need some altered device locking. This
- * is racing with device addition in theory. Easy to fix.
- */
-
- for(d=c->devices;d!=NULL;d=d->next)
- {
- /*
- * bus_adapter, SCSI (obsolete), or FibreChannel busses only
- */
- if( (d->lct_data.class_id!=I2O_CLASS_BUS_ADAPTER_PORT) // bus_adapter
-// && (d->lct_data.class_id!=I2O_CLASS_FIBRE_CHANNEL_PORT) // FC_PORT
- )
- continue;
-
- shpnt = scsi_register(tpnt, sizeof(struct i2o_scsi_host));
- if(shpnt==NULL)
- continue;
- shpnt->unique_id = (u32)d;
- shpnt->io_port = 0;
- shpnt->n_io_port = 0;
- shpnt->irq = 0;
- shpnt->this_id = /* Good question */15;
- i2o_scsi_init(c, d, shpnt);
- count++;
- }
- }
- i2o_scsi_hosts = count;
-
- if(count==0)
- {
- if(sg_chain_pool!=NULL)
- {
- kfree(sg_chain_pool);
- sg_chain_pool = NULL;
- }
- flush_pending();
- del_timer(&retry_timer);
- i2o_remove_handler(&i2o_scsi_handler);
- }
-
- return count;
-}
-
-static int i2o_scsi_release(struct Scsi_Host *host)
-{
- if(--i2o_scsi_hosts==0)
- {
- if(sg_chain_pool!=NULL)
- {
- kfree(sg_chain_pool);
- sg_chain_pool = NULL;
- }
- flush_pending();
- del_timer(&retry_timer);
- i2o_remove_handler(&i2o_scsi_handler);
- }
-
- scsi_unregister(host);
-
- return 0;
-}
-
-
-static const char *i2o_scsi_info(struct Scsi_Host *SChost)
-{
- struct i2o_scsi_host *hostdata;
- hostdata = (struct i2o_scsi_host *)SChost->hostdata;
- return(&hostdata->controller->name[0]);
-}
-
-/**
- * i2o_scsi_queuecommand - queue a SCSI command
- * @SCpnt: scsi command pointer
- * @done: callback for completion
- *
- * Issue a scsi comamnd asynchronously. Return 0 on success or 1 if
- * we hit an error (normally message queue congestion). The only
- * minor complication here is that I2O deals with the device addressing
- * so we have to map the bus/dev/lun back to an I2O handle as well
- * as faking absent devices ourself.
- *
- * Locks: takes the controller lock on error path only
- */
-
-static int i2o_scsi_queuecommand(struct scsi_cmnd *SCpnt,
- void (*done) (struct scsi_cmnd *))
-{
- int i;
- int tid;
- struct i2o_controller *c;
- struct scsi_cmnd *current_command;
- struct Scsi_Host *host;
- struct i2o_scsi_host *hostdata;
- u32 *msg, *mptr;
- u32 m;
- u32 *lenptr;
- int direction;
- int scsidir;
- u32 len;
- u32 reqlen;
- u32 tag;
- unsigned long flags;
-
- static int max_qd = 1;
-
- /*
- * Do the incoming paperwork
- */
-
- host = SCpnt->device->host;
- hostdata = (struct i2o_scsi_host *)host->hostdata;
-
- c = hostdata->controller;
- prefetch(c);
- prefetchw(&queue_depth);
-
- SCpnt->scsi_done = done;
-
- if(SCpnt->device->id > 15)
- {
- printk(KERN_ERR "i2o_scsi: Wild target %d.\n", SCpnt->device->id);
- return -1;
- }
-
- tid = hostdata->task[SCpnt->device->id][SCpnt->device->lun];
-
- dprintk(KERN_INFO "qcmd: Tid = %d\n", tid);
-
- current_command = SCpnt; /* set current command */
- current_command->scsi_done = done; /* set ptr to done function */
-
- /* We don't have such a device. Pretend we did the command
- and that selection timed out */
-
- if(tid == -1)
- {
- SCpnt->result = DID_NO_CONNECT << 16;
- done(SCpnt);
- return 0;
- }
-
- dprintk(KERN_INFO "Real scsi messages.\n");
-
- /*
- * Obtain an I2O message. If there are none free then
- * throw it back to the scsi layer
- */
-
- m = le32_to_cpu(I2O_POST_READ32(c));
- if(m==0xFFFFFFFF)
- return 1;
-
- msg = (u32 *)(c->msg_virt + m);
-
- /*
- * Put together a scsi execscb message
- */
-
- len = SCpnt->request_bufflen;
- direction = 0x00000000; // SGL IN (osm<--iop)
-
- if (SCpnt->sc_data_direction == DMA_NONE) {
- scsidir = 0x00000000; // DATA NO XFER
- } else if (SCpnt->sc_data_direction == DMA_TO_DEVICE) {
- direction = 0x04000000; // SGL OUT (osm-->iop)
- scsidir = 0x80000000; // DATA OUT (iop-->dev)
- } else if(SCpnt->sc_data_direction == DMA_FROM_DEVICE) {
- scsidir = 0x40000000; // DATA IN (iop<--dev)
- } else {
- /* Unknown - kill the command */
- SCpnt->result = DID_NO_CONNECT << 16;
-
- /* We must lock the request queue while completing */
- spin_lock_irqsave(host->host_lock, flags);
- done(SCpnt);
- spin_unlock_irqrestore(host->host_lock, flags);
- return 0;
- }
-
-
- i2o_raw_writel(I2O_CMD_SCSI_EXEC<<24|HOST_TID<<12|tid, &msg[1]);
- i2o_raw_writel(scsi_context, &msg[2]); /* So the I2O layer passes to us */
- i2o_raw_writel(i2o_context_list_add(SCpnt, c), &msg[3]); /* We want the SCSI control block back */
-
- /* LSI_920_PCI_QUIRK
- *
- * Intermittant observations of msg frame word data corruption
- * observed on msg[4] after:
- * WRITE, READ-MODIFY-WRITE
- * operations. 19990606 -sralston
- *
- * (Hence we build this word via tag. Its good practice anyway
- * we don't want fetches over PCI needlessly)
- */
-
- tag=0;
-
- /*
- * Attach tags to the devices
- */
- if(SCpnt->device->tagged_supported)
- {
- /*
- * Some drives are too stupid to handle fairness issues
- * with tagged queueing. We throw in the odd ordered
- * tag to stop them starving themselves.
- */
- if((jiffies - hostdata->tagclock[SCpnt->device->id][SCpnt->device->lun]) > (5*HZ))
- {
- tag=0x01800000; /* ORDERED! */
- hostdata->tagclock[SCpnt->device->id][SCpnt->device->lun]=jiffies;
- }
- else
- {
- /* Hmmm... I always see value of 0 here,
- * of which {HEAD_OF, ORDERED, SIMPLE} are NOT! -sralston
- */
- if(SCpnt->tag == HEAD_OF_QUEUE_TAG)
- tag=0x01000000;
- else if(SCpnt->tag == ORDERED_QUEUE_TAG)
- tag=0x01800000;
- }
- }
-
- /* Direction, disconnect ok, tag, CDBLen */
- i2o_raw_writel(scsidir|0x20000000|SCpnt->cmd_len|tag, &msg[4]);
-
- mptr=msg+5;
-
- /*
- * Write SCSI command into the message - always 16 byte block
- */
-
- memcpy_toio(mptr, SCpnt->cmnd, 16);
- mptr+=4;
- lenptr=mptr++; /* Remember me - fill in when we know */
-
- reqlen = 12; // SINGLE SGE
-
- /*
- * Now fill in the SGList and command
- *
- * FIXME: we need to set the sglist limits according to the
- * message size of the I2O controller. We might only have room
- * for 6 or so worst case
- */
-
- if(SCpnt->use_sg)
- {
- struct scatterlist *sg = (struct scatterlist *)SCpnt->request_buffer;
- int sg_count;
- int chain = 0;
-
- len = 0;
-
- sg_count = pci_map_sg(c->pdev, sg, SCpnt->use_sg,
- SCpnt->sc_data_direction);
-
- /* FIXME: handle fail */
- if(!sg_count)
- BUG();
-
- if((sg_max_frags > 11) && (SCpnt->use_sg > 11))
- {
- chain = 1;
- /*
- * Need to chain!
- */
- i2o_raw_writel(direction|0xB0000000|(SCpnt->use_sg*2*4), mptr++);
- i2o_raw_writel(virt_to_bus(sg_chain_pool + sg_chain_tag), mptr);
- mptr = (u32*)(sg_chain_pool + sg_chain_tag);
- if (SCpnt->use_sg > max_sg_len)
- {
- max_sg_len = SCpnt->use_sg;
- printk("i2o_scsi: Chain SG! SCpnt=%p, SG_FragCnt=%d, SG_idx=%d\n",
- SCpnt, SCpnt->use_sg, sg_chain_tag);
- }
- if ( ++sg_chain_tag == SG_MAX_BUFS )
- sg_chain_tag = 0;
- for(i = 0 ; i < SCpnt->use_sg; i++)
- {
- *mptr++=cpu_to_le32(direction|0x10000000|sg_dma_len(sg));
- len+=sg_dma_len(sg);
- *mptr++=cpu_to_le32(sg_dma_address(sg));
- sg++;
- }
- mptr[-2]=cpu_to_le32(direction|0xD0000000|sg_dma_len(sg-1));
- }
- else
- {
- for(i = 0 ; i < SCpnt->use_sg; i++)
- {
- i2o_raw_writel(direction|0x10000000|sg_dma_len(sg), mptr++);
- len+=sg->length;
- i2o_raw_writel(sg_dma_address(sg), mptr++);
- sg++;
- }
-
- /* Make this an end of list. Again evade the 920 bug and
- unwanted PCI read traffic */
-
- i2o_raw_writel(direction|0xD0000000|sg_dma_len(sg-1), &mptr[-2]);
- }
-
- if(!chain)
- reqlen = mptr - msg;
-
- i2o_raw_writel(len, lenptr);
-
- if(len != SCpnt->underflow)
- printk("Cmd len %08X Cmd underflow %08X\n",
- len, SCpnt->underflow);
- }
- else
- {
- dprintk(KERN_INFO "non sg for %p, %d\n", SCpnt->request_buffer,
- SCpnt->request_bufflen);
- i2o_raw_writel(len = SCpnt->request_bufflen, lenptr);
- if(len == 0)
- {
- reqlen = 9;
- }
- else
- {
- dma_addr_t dma_addr;
- dma_addr = pci_map_single(c->pdev,
- SCpnt->request_buffer,
- SCpnt->request_bufflen,
- SCpnt->sc_data_direction);
- if(dma_addr == 0)
- BUG(); /* How to handle ?? */
- SCpnt->SCp.ptr = (char *)(unsigned long) dma_addr;
- i2o_raw_writel(0xD0000000|direction|SCpnt->request_bufflen, mptr++);
- i2o_raw_writel(dma_addr, mptr++);
- }
- }
-
- /*
- * Stick the headers on
- */
-
- i2o_raw_writel(reqlen<<16 | SGL_OFFSET_10, msg);
-
- /* Queue the message */
- i2o_post_message(c,m);
-
- atomic_inc(&queue_depth);
-
- if(atomic_read(&queue_depth)> max_qd)
- {
- max_qd=atomic_read(&queue_depth);
- printk("Queue depth now %d.\n", max_qd);
- }
-
- mb();
- dprintk(KERN_INFO "Issued %ld\n", current_command->serial_number);
-
- return 0;
-}
-
-/**
- * i2o_scsi_abort - abort a running command
- * @SCpnt: command to abort
- *
- * Ask the I2O controller to abort a command. This is an asynchrnous
- * process and our callback handler will see the command complete
- * with an aborted message if it succeeds.
- *
- * Locks: no locks are held or needed
- */
-
-static int i2o_scsi_abort(struct scsi_cmnd * SCpnt)
-{
- struct i2o_controller *c;
- struct Scsi_Host *host;
- struct i2o_scsi_host *hostdata;
- u32 msg[5];
- int tid;
- int status = FAILED;
-
- printk(KERN_WARNING "i2o_scsi: Aborting command block.\n");
-
- host = SCpnt->device->host;
- hostdata = (struct i2o_scsi_host *)host->hostdata;
- tid = hostdata->task[SCpnt->device->id][SCpnt->device->lun];
- if(tid==-1)
- {
- printk(KERN_ERR "i2o_scsi: Impossible command to abort!\n");
- return status;
- }
- c = hostdata->controller;
-
- spin_unlock_irq(host->host_lock);
-
- msg[0] = FIVE_WORD_MSG_SIZE;
- msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|tid;
- msg[2] = scsi_context;
- msg[3] = 0;
- msg[4] = i2o_context_list_remove(SCpnt, c);
- if(i2o_post_wait(c, msg, sizeof(msg), 240))
- status = SUCCESS;
-
- spin_lock_irq(host->host_lock);
- return status;
-}
-
-/**
- * i2o_scsi_bus_reset - Issue a SCSI reset
- * @SCpnt: the command that caused the reset
- *
- * Perform a SCSI bus reset operation. In I2O this is just a message
- * we pass. I2O can do clever multi-initiator and shared reset stuff
- * but we don't support this.
- *
- * Locks: called with no lock held, requires no locks.
- */
-
-static int i2o_scsi_bus_reset(struct scsi_cmnd * SCpnt)
-{
- int tid;
- struct i2o_controller *c;
- struct Scsi_Host *host;
- struct i2o_scsi_host *hostdata;
- u32 m;
- void *msg;
- unsigned long timeout;
-
-
- /*
- * Find the TID for the bus
- */
-
-
- host = SCpnt->device->host;
-
- spin_unlock_irq(host->host_lock);
-
- printk(KERN_WARNING "i2o_scsi: Attempting to reset the bus.\n");
-
- hostdata = (struct i2o_scsi_host *)host->hostdata;
- tid = hostdata->bus_task;
- c = hostdata->controller;
-
- /*
- * Now send a SCSI reset request. Any remaining commands
- * will be aborted by the IOP. We need to catch the reply
- * possibly ?
- */
-
- timeout = jiffies+2*HZ;
- do
- {
- m = le32_to_cpu(I2O_POST_READ32(c));
- if(m != 0xFFFFFFFF)
- break;
- set_current_state(TASK_UNINTERRUPTIBLE);
- schedule_timeout(1);
- mb();
- }
- while(time_before(jiffies, timeout));
-
-
- msg = c->msg_virt + m;
- i2o_raw_writel(FOUR_WORD_MSG_SIZE|SGL_OFFSET_0, msg);
- i2o_raw_writel(I2O_CMD_SCSI_BUSRESET<<24|HOST_TID<<12|tid, msg+4);
- i2o_raw_writel(scsi_context|0x80000000, msg+8);
- /* We use the top bit to split controller and unit transactions */
- /* Now store unit,tid so we can tie the completion back to a specific device */
- __raw_writel(c->unit << 16 | tid, msg+12);
- wmb();
-
- /* We want the command to complete after we return */
- spin_lock_irq(host->host_lock);
- i2o_post_message(c,m);
-
- /* Should we wait for the reset to complete ? */
- return SUCCESS;
-}
-
-/**
- * i2o_scsi_bios_param - Invent disk geometry
- * @sdev: scsi device
- * @dev: block layer device
- * @capacity: size in sectors
- * @ip: geometry array
- *
- * This is anyones guess quite frankly. We use the same rules everyone
- * else appears to and hope. It seems to work.
- */
-
-static int i2o_scsi_bios_param(struct scsi_device * sdev,
- struct block_device *dev, sector_t capacity, int *ip)
-{
- int size;
-
- size = capacity;
- ip[0] = 64; /* heads */
- ip[1] = 32; /* sectors */
- if ((ip[2] = size >> 11) > 1024) { /* cylinders, test for big disk */
- ip[0] = 255; /* heads */
- ip[1] = 63; /* sectors */
- ip[2] = size / (255 * 63); /* cylinders */
- }
- return 0;
-}
-
-MODULE_AUTHOR("Red Hat Software");
-MODULE_LICENSE("GPL");
-
-
-static struct scsi_host_template driver_template = {
- .proc_name = "i2o_scsi",
- .name = "I2O SCSI Layer",
- .detect = i2o_scsi_detect,
- .release = i2o_scsi_release,
- .info = i2o_scsi_info,
- .queuecommand = i2o_scsi_queuecommand,
- .eh_abort_handler = i2o_scsi_abort,
- .eh_bus_reset_handler = i2o_scsi_bus_reset,
- .bios_param = i2o_scsi_bios_param,
- .can_queue = I2O_SCSI_CAN_QUEUE,
- .this_id = 15,
- .sg_tablesize = 8,
- .cmd_per_lun = 6,
- .use_clustering = ENABLE_CLUSTERING,
-};
-
-#include "../../scsi/scsi_module.c"
diff -puN /dev/null drivers/message/i2o/iop.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/iop.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,1261 @@
+/*
+ * Functions to handle I2O controllers and I2O message handling
+ *
+ * Copyright (C) 1999-2002 Red Hat Software
+ *
+ * Written by Alan Cox, Building Number Three Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * A lot of the I2O message side code from this is taken from the
+ * Red Creek RCPCI45 adapter driver by Red Creek Communications
+ *
+ * Fixes/additions:
+ * Philipp Rumpf
+ * Juha Siev�nen <Juha.Sievanen@cs.Helsinki.FI>
+ * Auvo H�kkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ * Deepak Saxena <deepak@plexity.net>
+ * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ * Alan Cox <alan@redhat.com>:
+ * Ported to Linux 2.5.
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Minor fixes for 2.6.
+ */
+
+#include <linux/module.h>
+#include <linux/i2o.h>
+
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+
+/* global I2O controller list */
+LIST_HEAD(i2o_controllers);
+
+/*
+ * global I2O System Table. Contains information about all the IOPs in the
+ * system. Used to inform IOPs about each others existence.
+ */
+static struct i2o_dma i2o_systab;
+
+
+/* Module internal functions from other sources */
+extern struct i2o_driver i2o_exec_driver;
+extern int i2o_exec_lct_get(struct i2o_controller *);
+extern void i2o_device_remove(struct i2o_device *);
+
+extern int __init i2o_driver_init(void);
+extern void __exit i2o_driver_exit(void);
+extern int __init i2o_exec_init(void);
+extern void __exit i2o_exec_exit(void);
+extern int __init i2o_pci_init(void);
+extern void __exit i2o_pci_exit(void);
+extern int i2o_device_init(void);
+extern void i2o_device_exit(void);
+
+
+/* Module internal functions */
+struct i2o_controller *i2o_iop_alloc(void);
+void i2o_iop_free(struct i2o_controller *);
+int i2o_iop_add(struct i2o_controller *);
+void i2o_iop_remove(struct i2o_controller *);
+
+/* Internal used functions */
+static inline void i2o_iop_quiesce_all(void);
+static inline void i2o_iop_enable_all(void);
+static int i2o_iop_quiesce(struct i2o_controller *);
+static int i2o_iop_enable(struct i2o_controller *);
+static int i2o_iop_activate(struct i2o_controller *);
+static int i2o_iop_online(struct i2o_controller *);
+static int i2o_iop_clear(struct i2o_controller *);
+static int i2o_iop_reset(struct i2o_controller *);
+static int i2o_iop_init_outbound_queue(struct i2o_controller *);
+static int i2o_systab_build(void);
+static int i2o_iop_systab_set(struct i2o_controller *);
+static int i2o_parse_hrt(struct i2o_controller *);
+
+/* Module init and exit functions */
+static int __init i2o_iop_init(void);
+static void __exit i2o_iop_exit(void);
+
+
+/**
+ * i2o_msg_nop - Returns a message which is not used
+ * @c: I2O controller from which the message was created
+ * @m: message which should be returned
+ *
+ * If you fetch a message via i2o_msg_get, and can't use it, you must
+ * return the message with this function. Otherwise the message frame
+ * is lost.
+ */
+void i2o_msg_nop(struct i2o_controller *c, u32 m)
+{
+ struct i2o_message *msg = c->in_queue.virt + m;
+
+ writel(THREE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_UTIL_NOP<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+ writel(0, &msg->head[2]);
+ writel(0, &msg->head[3]);
+ i2o_msg_post(c, m);
+};
+
+/**
+ * i2o_msg_get_wait - obtain an I2O message from the IOP
+ * @c: I2O controller
+ * @msg: pointer to a I2O message pointer
+ * @wait: how long to wait until timeout
+ *
+ * This function waits up to wait seconds for a message slot to be
+ * available.
+ *
+ * On a success the message is returned and the pointer to the message is
+ * set in msg. The returned message is the physical page frame offset
+ * address from the read port (see the i2o spec). If no message is
+ * available returns I2O_QUEUE_EMPTY and msg is leaved untouched.
+ */
+u32 i2o_msg_get_wait(struct i2o_controller *c,struct i2o_message **msg,int wait)
+{
+ unsigned long timeout=jiffies + wait * HZ;
+ u32 m;
+
+ while((m=i2o_msg_get(c, msg))==I2O_QUEUE_EMPTY) {
+ if(time_after(jiffies, timeout)) {
+ DBG("%s: Timeout waiting for message frame.\n",c->name);
+ return I2O_QUEUE_EMPTY;
+ }
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+ }
+
+ return m;
+};
+
+#if BITS_PER_LONG == 64
+/**
+ * i2o_cntxt_list_add - Append a pointer to context list and return a id
+ * @ptr: pointer to add to the context list
+ * @c: controller to which the context list belong
+ *
+ * Because the context field in I2O is only 32-bit large, on 64-bit the
+ * pointer is to large to fit in the context field. The i2o_cntxt_list
+ * functions therefore map pointers to context fields.
+ *
+ * Returns context id > 0 on success or 0 on failure.
+ */
+u32 i2o_cntxt_list_add(struct i2o_controller *c, void *ptr)
+{
+ struct i2o_context_list_element *entry;
+ unsigned long flags;
+
+ if(!ptr)
+ printk(KERN_ERR "NULL pointer found!\n");
+
+ entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
+ if(!entry) {
+ printk(KERN_ERR "i2o: Could not allocate memory for context "
+ "list element\n");
+ return 0;
+ }
+
+ entry->ptr = ptr;
+ entry->timestamp = jiffies;
+ INIT_LIST_HEAD(&entry->list);
+
+ spin_lock_irqsave(&c->context_list_lock, flags);
+
+ if(unlikely(atomic_inc_and_test(&c->context_list_counter)))
+ atomic_inc(&c->context_list_counter);
+
+ entry->context = atomic_read(&c->context_list_counter);
+
+ list_add(&entry->list, &c->context_list);
+
+ spin_unlock_irqrestore(&c->context_list_lock, flags);
+
+ DBG("Add context to list %p -> %d\n", ptr, context);
+
+ return entry->context;
+};
+
+/**
+ * i2o_cntxt_list_remove - Remove a pointer from the context list
+ * @ptr: pointer which should be removed from the context list
+ * @c: controller to which the context list belong
+ *
+ * Removes a previously added pointer from the context list and returns
+ * the matching context id.
+ *
+ * Returns context id on succes or 0 on failure.
+ */
+u32 i2o_cntxt_list_remove(struct i2o_controller *c, void *ptr)
+{
+ struct i2o_context_list_element *entry;
+ u32 context = 0;
+ unsigned long flags;
+
+ spin_lock_irqsave(&c->context_list_lock, flags);
+ list_for_each_entry(entry, &c->context_list, list)
+ if(entry->ptr == ptr) {
+ list_del(&entry->list);
+ context = entry->context;
+ kfree(entry);
+ break;
+ }
+ spin_unlock_irqrestore(&c->context_list_lock, flags);
+
+ if(!context)
+ printk(KERN_WARNING "i2o: Could not remove nonexistent ptr "
+ "%p\n", ptr);
+
+ DBG("remove ptr from context list %d -> %p\n", context, ptr);
+
+ return context;
+};
+
+/**
+ * i2o_cntxt_list_get - Get a pointer from the context list and remove it
+ * @context: context id to which the pointer belong
+ * @c: controller to which the context list belong
+ * returns pointer to the matching context id
+ */
+void *i2o_cntxt_list_get(struct i2o_controller *c, u32 context)
+{
+ struct i2o_context_list_element *entry;
+ unsigned long flags;
+ void *ptr = NULL;
+
+ spin_lock_irqsave(&c->context_list_lock, flags);
+ list_for_each_entry(entry, &c->context_list, list)
+ if(entry->context == context) {
+ list_del(&entry->list);
+ ptr = entry->ptr;
+ kfree(entry);
+ break;
+ }
+ spin_unlock_irqrestore(&c->context_list_lock, flags);
+
+ if(!ptr)
+ printk(KERN_WARNING "i2o: context id %d not found\n", context);
+
+ DBG("get ptr from context list %d -> %p\n", context, ptr);
+
+ return ptr;
+};
+#endif
+
+/**
+ * i2o_iop_find - Find an I2O controller by id
+ * @unit: unit number of the I2O controller to search for
+ *
+ * Lookup the I2O controller on the controller list.
+ *
+ * Returns pointer to the I2O controller on success or NULL if not found.
+ */
+struct i2o_controller *i2o_find_iop(int unit) {
+ struct i2o_controller *c;
+
+ list_for_each_entry(c, &i2o_controllers, list) {
+ if(c->unit == unit)
+ return c;
+ }
+
+ return NULL;
+};
+
+/**
+ * i2o_iop_find_device - Find a I2O device on an I2O controller
+ * @c: I2O controller where the I2O device hangs on
+ * @tid: TID of the I2O device to search for
+ *
+ * Searches the devices of the I2O controller for a device with TID tid and
+ * returns it.
+ *
+ * Returns a pointer to the I2O device if found, otherwise NULL.
+ */
+struct i2o_device *i2o_iop_find_device(struct i2o_controller *c, u16 tid) {
+ struct i2o_device *dev;
+
+ list_for_each_entry(dev, &c->devices, list)
+ if(dev->lct_data.tid == tid)
+ return dev;
+
+ return 0;
+};
+
+/**
+ * i2o_iop_quiesce_all - Quiesce all I2O controllers on the system
+ *
+ * Quiesce all I2O controllers which are connected to the system.
+ */
+static inline void i2o_iop_quiesce_all(void)
+{
+ struct i2o_controller *c, *tmp;
+
+ list_for_each_entry_safe(c, tmp, &i2o_controllers, list) {
+ if(!c->no_quiesce)
+ i2o_iop_quiesce(c);
+ }
+};
+
+/**
+ * i2o_iop_enable_all - Enables all controllers on the system
+ *
+ * Enables all I2O controllers which are connected to the system.
+ */
+static inline void i2o_iop_enable_all(void)
+{
+ struct i2o_controller *c, *tmp;
+
+ list_for_each_entry_safe(c, tmp, &i2o_controllers, list)
+ i2o_iop_enable(c);
+};
+
+/**
+ * i2o_quiesce_controller - quiesce controller
+ * @c: controller
+ *
+ * Quiesce an IOP. Causes IOP to make external operation quiescent
+ * (i2o 'READY' state). Internal operation of the IOP continues normally.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_iop_quiesce(struct i2o_controller *c)
+{
+ struct i2o_message *msg;
+ u32 m;
+ i2o_status_block *sb = c->status_block.virt;
+ int rc;
+
+ i2o_status_get(c);
+
+ /* SysQuiesce discarded if IOP not in READY or OPERATIONAL state */
+ if((sb->iop_state != ADAPTER_STATE_READY) &&
+ (sb->iop_state != ADAPTER_STATE_OPERATIONAL))
+ return 0;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FOUR_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_SYS_QUIESCE<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+
+ /* Long timeout needed for quiesce if lots of devices */
+ if ((rc=i2o_msg_post_wait(c, m, 240)))
+ printk(KERN_INFO "%s: Unable to quiesce (status=%#x).\n",
+ c->name, -rc);
+ else
+ DBG("%s: Quiesced.\n", c->name);
+
+ i2o_status_get(c); // Entered READY state
+
+ return rc;
+};
+
+/**
+ * i2o_iop_enable - move controller from ready to OPERATIONAL
+ * @c: I2O controller
+ *
+ * Enable IOP. This allows the IOP to resume external operations and
+ * reverses the effect of a quiesce. Returns zero or an error code if
+ * an error occurs.
+ */
+static int i2o_iop_enable(struct i2o_controller *c)
+{
+ struct i2o_message *msg;
+ u32 m;
+ i2o_status_block *sb = c->status_block.virt;
+ int rc;
+
+ i2o_status_get(c);
+
+ /* Enable only allowed on READY state */
+ if(sb->iop_state != ADAPTER_STATE_READY)
+ return -EINVAL;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FOUR_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_SYS_ENABLE<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+
+ /* How long of a timeout do we need? */
+ if((rc = i2o_msg_post_wait(c, m, 240)))
+ printk(KERN_ERR "%s: Could not enable (status=%#x).\n",
+ c->name, -rc);
+ else
+ DBG("%s: Enabled.\n", c->name);
+
+ i2o_status_get(c); // entered OPERATIONAL state
+
+ return rc;
+};
+
+/**
+ * i2o_iop_activate - Bring controller up to HOLD
+ * @c: controller
+ *
+ * This function brings an I2O controller into HOLD state. The adapter
+ * is reset if necessary and then the queues and resource table are read.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_iop_activate(struct i2o_controller *c)
+{
+ i2o_status_block *sb = c->status_block.virt;
+ int rc;
+ /* In INIT state, Wait Inbound Q to initialize (in i2o_status_get) */
+ /* In READY state, Get status */
+
+ rc = i2o_status_get(c);
+ if(rc) {
+ printk(KERN_INFO "Unable to obtain status of %s, "
+ "attempting a reset.\n", c->name);
+ if(i2o_iop_reset(c))
+ return rc;
+ }
+
+ if(sb->i2o_version > I2OVER15) {
+ printk(KERN_ERR "%s: Not running vrs. 1.5. of the I2O "
+ "Specification.\n", c->name);
+ return -ENODEV;
+ }
+
+ switch(sb->iop_state) {
+ case ADAPTER_STATE_FAULTED:
+ printk(KERN_CRIT "%s: hardware fault\n", c->name);
+ return -ENODEV;
+
+ case ADAPTER_STATE_READY:
+ case ADAPTER_STATE_OPERATIONAL:
+ case ADAPTER_STATE_HOLD:
+ case ADAPTER_STATE_FAILED:
+ DBG("already running, trying to reset...\n");
+ if(i2o_iop_reset(c))
+ return -ENODEV;
+ }
+
+ rc = i2o_iop_init_outbound_queue(c);
+ if(rc)
+ return rc;
+
+ /* In HOLD state */
+
+ rc = i2o_hrt_get(c);
+ if(rc)
+ return rc;
+
+ return 0;
+};
+
+/**
+ * i2o_iop_online - Bring a controller online into OPERATIONAL state.
+ * @c: I2O controller
+ *
+ * Send the system table and enable the I2O controller.
+ *
+ * Returns 0 on success or negativer error code on failure.
+ */
+static int i2o_iop_online(struct i2o_controller *c)
+{
+ int rc;
+
+ rc =i2o_iop_systab_set(c);
+ if(rc)
+ return rc;
+
+ /* In READY state */
+ DBG("%s: Attempting to enable...\n", c->name);
+ rc = i2o_iop_enable(c);
+ if(rc)
+ return rc;
+
+ return 0;
+};
+
+/**
+ * i2o_clear_controller - Bring I2O controller into HOLD state
+ * @c: controller
+ *
+ * Clear an IOP to HOLD state, ie. terminate external operations, clear all
+ * input queues and prepare for a system restart. IOP's internal operation
+ * continues normally and the outbound queue is alive. The IOP is not
+ * expected to rebuild its LCT.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_iop_clear(struct i2o_controller *c)
+{
+ struct i2o_message *msg;
+ u32 m;
+ int rc;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ /* Quiesce all IOPs first */
+ i2o_iop_quiesce_all();
+
+ writel(FOUR_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_ADAPTER_CLEAR<<24|HOST_TID<<12|ADAPTER_TID,
+ &msg->head[1]);
+
+ if ((rc=i2o_msg_post_wait(c, m, 30)))
+ printk(KERN_INFO "%s: Unable to clear (status=%#x).\n",
+ c->name, -rc);
+ else
+ DBG("%s: Cleared.\n",c->name);
+
+ /* Enable all IOPs */
+ i2o_iop_enable_all();
+
+ i2o_status_get(c);
+
+ return rc;
+}
+
+/**
+ * i2o_iop_reset - reset an I2O controller
+ * @c: controller to reset
+ *
+ * Reset the IOP into INIT state and wait until IOP gets into RESET state.
+ * Terminate all external operations, clear IOP's inbound and outbound
+ * queues, terminate all DDMs, and reload the IOP's operating environment
+ * and all local DDMs. The IOP rebuilds its LCT.
+ */
+static int i2o_iop_reset(struct i2o_controller *c)
+{
+ u8 *status = c->status.virt;
+ struct i2o_message *msg;
+ u32 m;
+ unsigned long timeout;
+ i2o_status_block *sb = c->status_block.virt;
+ int rc = 0;
+
+ DBG("Resetting controller\n");
+
+ m=i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ memset(status, 0, 4);
+
+ /* Quiesce all IOPs first */
+ i2o_iop_quiesce_all();
+
+ writel(EIGHT_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_ADAPTER_RESET<<24|HOST_TID<<12|ADAPTER_TID,
+ &msg->head[1]);
+ writel(i2o_exec_driver.context, &msg->icntxt);
+ writel(0, &msg->tcntxt); //FIXME: use reasonable transaction context
+ writel(0, &msg->body[0]);
+ writel(0, &msg->body[1]);
+ writel(i2o_ptr_low((void *)c->status.phys), &msg->body[2]);
+ writel(i2o_ptr_high((void *)c->status.phys), &msg->body[3]);
+
+ i2o_msg_post(c,m);
+
+ /* Wait for a reply */
+ timeout=jiffies + I2O_TIMEOUT_RESET * HZ;
+ while(!*status) {
+ if(time_after(jiffies, timeout)) {
+ printk(KERN_ERR "IOP reset timeout.\n");
+ rc = -ETIMEDOUT;
+ goto exit;
+ }
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+
+ rmb();
+ }
+
+ if (*status==I2O_CMD_IN_PROGRESS) {
+ /*
+ * Once the reset is sent, the IOP goes into the INIT state
+ * which is indeterminate. We need to wait until the IOP
+ * has rebooted before we can let the system talk to
+ * it. We read the inbound Free_List until a message is
+ * available. If we can't read one in the given ammount of
+ * time, we assume the IOP could not reboot properly.
+ */
+ DBG("%s: Reset in progress, waiting for reboot...\n", c->name);
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_RESET);
+ while(m == I2O_QUEUE_EMPTY) {
+ if(time_after(jiffies, timeout)) {
+ printk(KERN_ERR "IOP reset timeout.\n");
+ rc = -ETIMEDOUT;
+ goto exit;
+ }
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_RESET);
+ }
+ i2o_msg_nop(c, m);
+ }
+
+ /* from here all quiesce commands are safe */
+ c->no_quiesce = 0;
+
+ /* If IopReset was rejected or didn't perform reset, try IopClear */
+ i2o_status_get(c);
+ if(*status==I2O_CMD_REJECTED || sb->iop_state!=ADAPTER_STATE_RESET) {
+ printk(KERN_WARNING "%s: Reset rejected, trying to clear\n",
+ c->name);
+ i2o_iop_clear(c);
+ } else
+ DBG("%s: Reset completed.\n", c->name);
+
+exit:
+ /* Enable all IOPs */
+ i2o_iop_enable_all();
+
+ return rc;
+};
+
+/**
+ * i2o_systab_build - Build system table
+ *
+ * The system table contains information about all the IOPs in the system
+ * (duh) and is used by the Executives on the IOPs to establish peer2peer
+ * connections. We're not supporting peer2peer at the moment, but this
+ * will be needed down the road for things like lan2lan forwarding.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_systab_build(void)
+{
+ struct i2o_controller *c, *tmp;
+ int num_controllers = 0;
+ u32 change_ind = 0;
+ int count = 0;
+ struct i2o_sys_tbl *systab = i2o_systab.virt;
+
+ list_for_each_entry_safe(c, tmp, &i2o_controllers, list)
+ num_controllers ++;
+
+ if(systab) {
+ change_ind = systab->change_ind;
+ kfree(i2o_systab.virt);
+ }
+
+ /* Header + IOPs */
+ i2o_systab.len = sizeof(struct i2o_sys_tbl) + num_controllers *
+ sizeof(struct i2o_sys_tbl_entry);
+
+ systab = i2o_systab.virt = kmalloc(i2o_systab.len, GFP_KERNEL);
+ if(!systab) {
+ printk(KERN_ERR "i2o: unable to allocate memory for System "
+ "Table\n");
+ return -ENOMEM;
+ }
+ memset(systab, 0, i2o_systab.len);
+
+ systab->version = I2OVERSION;
+ systab->change_ind = change_ind + 1;
+
+ list_for_each_entry_safe(c, tmp, &i2o_controllers, list) {
+ i2o_status_block *sb;
+
+ if(count >= num_controllers) {
+ printk(KERN_ERR "i2o: controller added while building "
+ "system table\n");
+ break;
+ }
+
+ sb = c->status_block.virt;
+
+ /*
+ * Get updated IOP state so we have the latest information
+ *
+ * We should delete the controller at this point if it
+ * doesn't respond since if it's not on the system table
+ * it is techninically not part of the I2O subsystem...
+ */
+ if(unlikely(i2o_status_get(c))) {
+ printk(KERN_ERR "%s: Deleting b/c could not get status"
+ " while attempting to build system table\n",
+ c->name);
+ i2o_iop_remove(c);
+ continue; // try the next one
+ }
+
+ systab->iops[count].org_id = sb->org_id;
+ systab->iops[count].iop_id = c->unit + 2;
+ systab->iops[count].seg_num = 0;
+ systab->iops[count].i2o_version = sb->i2o_version;
+ systab->iops[count].iop_state = sb->iop_state;
+ systab->iops[count].msg_type = sb->msg_type;
+ systab->iops[count].frame_size = sb->inbound_frame_size;
+ systab->iops[count].last_changed = change_ind;
+ systab->iops[count].iop_capabilities = sb->iop_capabilities;
+ systab->iops[count].inbound_low = i2o_ptr_low(c->post_port);
+ systab->iops[count].inbound_high = i2o_ptr_high(c->post_port);
+
+ count ++;
+ }
+
+ systab->num_entries = count;
+
+ return 0;
+};
+
+/**
+ * i2o_iop_systab_set - Set the I2O System Table of the specified IOP
+ * @c: I2O controller to which the system table should be send
+ *
+ * Before the systab could be set i2o_systab_build() must be called.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_iop_systab_set(struct i2o_controller *c)
+{
+ struct i2o_message *msg;
+ u32 m;
+ i2o_status_block *sb = c->status_block.virt;
+ struct device *dev = &c->pdev->dev;
+ struct resource *root;
+ int rc;
+
+ if(sb->current_mem_size < sb->desired_mem_size)
+ {
+ struct resource *res = &c->mem_resource;
+ res->name = c->pdev->bus->name;
+ res->flags = IORESOURCE_MEM;
+ res->start = 0;
+ res->end = 0;
+ printk("%s: requires private memory resources.\n", c->name);
+ root = pci_find_parent_resource(c->pdev, res);
+ if(root==NULL)
+ printk("Can't find parent resource!\n");
+ if(root && allocate_resource(root, res,
+ sb->desired_mem_size,
+ sb->desired_mem_size,
+ sb->desired_mem_size,
+ 1<<20, /* Unspecified, so use 1Mb and play safe */
+ NULL,
+ NULL)>=0)
+ {
+ c->mem_alloc = 1;
+ sb->current_mem_size = 1 + res->end - res->start;
+ sb->current_mem_base = res->start;
+ printk(KERN_INFO "%s: allocated %ld bytes of PCI memory at 0x%08lX.\n",
+ c->name, 1+res->end-res->start, res->start);
+ }
+ }
+
+ if(sb->current_io_size < sb->desired_io_size)
+ {
+ struct resource *res = &c->io_resource;
+ res->name = c->pdev->bus->name;
+ res->flags = IORESOURCE_IO;
+ res->start = 0;
+ res->end = 0;
+ printk("%s: requires private memory resources.\n", c->name);
+ root = pci_find_parent_resource(c->pdev, res);
+ if(root==NULL)
+ printk("Can't find parent resource!\n");
+ if(root && allocate_resource(root, res,
+ sb->desired_io_size,
+ sb->desired_io_size,
+ sb->desired_io_size,
+ 1<<20, /* Unspecified, so use 1Mb and play safe */
+ NULL,
+ NULL)>=0)
+ {
+ c->io_alloc = 1;
+ sb->current_io_size = 1 + res->end - res->start;
+ sb->current_mem_base = res->start;
+ printk(KERN_INFO "%s: allocated %ld bytes of PCI I/O at 0x%08lX.\n",
+ c->name, 1+res->end-res->start, res->start);
+ }
+ }
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ i2o_systab.phys = dma_map_single(dev, i2o_systab.virt, i2o_systab.len,
+ PCI_DMA_TODEVICE);
+ if(!i2o_systab.phys) {
+ i2o_msg_nop(c, m);
+ return -ENOMEM;
+ }
+
+ writel(I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6, &msg->head[0]);
+ writel(I2O_CMD_SYS_TAB_SET<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+
+ /*
+ * Provide three SGL-elements:
+ * System table (SysTab), Private memory space declaration and
+ * Private i/o space declaration
+ *
+ * FIXME: is this still true?
+ * Nasty one here. We can't use dma_alloc_coherent to send the
+ * same table to everyone. We have to go remap it for them all
+ */
+
+ writel(c->unit + 2, &msg->body[0]);
+ writel(0, &msg->body[1]);
+ writel(0x54000000 | i2o_systab.phys, &msg->body[2]);
+ writel(i2o_systab.phys, &msg->body[3]);
+ writel(0x54000000 | sb->current_mem_size, &msg->body[4]);
+ writel(sb->current_mem_base, &msg->body[5]);
+ writel(0xd4000000 | sb->current_io_size, &msg->body[6]);
+ writel(sb->current_io_base, &msg->body[6]);
+
+ rc=i2o_msg_post_wait(c, m, 120);
+
+ dma_unmap_single(dev, i2o_systab.phys, i2o_systab.len,PCI_DMA_TODEVICE);
+
+ if(rc<0)
+ printk(KERN_ERR "%s: Unable to set SysTab (status=%#x).\n",
+ c->name, -rc);
+ else
+ DBG("%s: SysTab set.\n", c->name);
+
+ i2o_status_get(c); // Entered READY state
+
+ return rc;
+}
+
+/**
+ * i2o_parse_hrt - Parse the hardware resource table.
+ * @c: I2O controller
+ *
+ * We don't do anything with it except dumping it (in debug mode).
+ *
+ * Returns 0.
+ */
+static int i2o_parse_hrt(struct i2o_controller *c)
+{
+ i2o_dump_hrt(c);
+ return 0;
+};
+
+/**
+ * i2o_status_get - Get the status block from the I2O controller
+ * @c: I2O controller
+ *
+ * Issue a status query on the controller. This updates the attached
+ * status block. The status block could then be accessed through
+ * c->status_block.
+ *
+ * Returns 0 on sucess or negative error code on failure.
+ */
+int i2o_status_get(struct i2o_controller *c)
+{
+ struct i2o_message *msg;
+ u32 m;
+ u8 *status_block;
+ unsigned long timeout;
+
+ status_block = (u8*)c->status_block.virt;
+ memset(status_block, 0, sizeof(i2o_status_block));
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(NINE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_STATUS_GET<<24|HOST_TID<<12|ADAPTER_TID, &msg->head[1]);
+ writel(i2o_exec_driver.context, &msg->icntxt);
+ writel(0, &msg->tcntxt); // FIXME: use resonable transaction context
+ writel(0, &msg->body[0]);
+ writel(0, &msg->body[1]);
+ writel(i2o_ptr_low((void *)c->status_block.phys), &msg->body[2]);
+ writel(i2o_ptr_high((void *)c->status_block.phys), &msg->body[3]);
+ writel(sizeof(i2o_status_block), &msg->body[4]); /* always 88 bytes */
+
+ i2o_msg_post(c,m);
+
+ /* Wait for a reply */
+ timeout=jiffies + I2O_TIMEOUT_STATUS_GET * HZ;
+ while(status_block[87]!=0xFF) {
+ if(time_after(jiffies, timeout)) {
+ printk(KERN_ERR "%s: Get status timeout.\n", c->name);
+ return -ETIMEDOUT;
+ }
+
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+
+ rmb();
+ }
+
+#if DEBUG
+ i2o_debug_state(c);
+#endif
+
+ return 0;
+}
+
+/*
+ * i2o_hrt_get - Get the Hardware Resource Table from the I2O controller
+ * @c: I2O controller from which the HRT should be fetched
+ *
+ * The HRT contains information about possible hidden devices but is
+ * mostly useless to us.
+ *
+ * Returns 0 on success or negativer error code on failure.
+ */
+int i2o_hrt_get(struct i2o_controller *c)
+{
+ int rc;
+ int i;
+ i2o_hrt *hrt = c->hrt.virt;
+ u32 size = sizeof(i2o_hrt);
+ struct device *dev = &c->pdev->dev;
+
+ for(i = 0; i < I2O_HRT_GET_TRIES; i ++) {
+ struct i2o_message *msg;
+ u32 m;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(SIX_WORD_MSG_SIZE| SGL_OFFSET_4, &msg->head[0]);
+ writel(I2O_CMD_HRT_GET<<24|HOST_TID<<12|ADAPTER_TID,
+ &msg->head[1]);
+ writel(0xd0000000 | c->hrt.len, &msg->body[0]);
+ writel(c->hrt.phys, &msg->body[1]);
+
+ rc = i2o_msg_post_wait_mem(c, m, 20, &c->hrt);
+
+ if(rc<0) {
+ printk(KERN_ERR "%s: Unable to get HRT (status=%#x)\n",
+ c->name, -rc);
+ return rc;
+ }
+
+ size = hrt->num_entries * hrt->entry_len << 2;
+ if(size > c->hrt.len) {
+ if(i2o_dma_realloc(dev, &c->hrt, size, GFP_KERNEL))
+ return -ENOMEM;
+ else
+ hrt = c->hrt.virt;
+ } else
+ return i2o_parse_hrt(c);
+ }
+
+ printk(KERN_ERR "%s: Unable to get HRT after %d tries, giving up\n",
+ c->name, I2O_HRT_GET_TRIES);
+
+ return -EBUSY;
+}
+
+/**
+ * i2o_iop_init_outbound_queue - setup the outbound message queue
+ * @c: I2O controller
+ *
+ * Clear and (re)initialize IOP's outbound queue and post the message
+ * frames to the IOP.
+ *
+ * Returns 0 on success or a negative errno code on failure.
+ */
+int i2o_iop_init_outbound_queue(struct i2o_controller *c)
+{
+ u8 *status = c->status.virt;
+ u32 m;
+ struct i2o_message *msg;
+ ulong timeout;
+ int i;
+
+ DBG("%s: Initializing Outbound Queue...\n", c->name);
+
+ memset(status, 0, 4);
+
+ m=i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(EIGHT_WORD_MSG_SIZE| TRL_OFFSET_6, &msg->head[0]);
+ writel(I2O_CMD_OUTBOUND_INIT<<24|HOST_TID<<12|ADAPTER_TID,
+ &msg->head[1]);
+ writel(i2o_exec_driver.context, &msg->icntxt);
+ writel(0x0106, &msg->tcntxt); /* FIXME: why 0x0106, maybe in
+ Spec? */
+ writel(PAGE_SIZE, &msg->body[0]);
+ writel(MSG_FRAME_SIZE<<16|0x80, &msg->body[1]); /* Outbound msg frame
+ size in words and Initcode */
+ writel(0xd0000004, &msg->body[2]);
+ writel(i2o_ptr_low((void *)c->status.phys), &msg->body[3]);
+ writel(i2o_ptr_high((void *)c->status.phys), &msg->body[4]);
+
+ i2o_msg_post(c, m);
+
+ timeout = jiffies + I2O_TIMEOUT_INIT_OUTBOUND_QUEUE * HZ;
+ while(*status <= I2O_CMD_IN_PROGRESS) {
+ if(time_after(jiffies, timeout)) {
+ printk(KERN_WARNING "%s: Timeout Initializing\n",
+ c->name);
+ return -ETIMEDOUT;
+ }
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+
+ rmb();
+ }
+
+ m = c->out_queue.phys;
+
+ /* Post frames */
+ for(i=0; i < NMBR_MSG_FRAMES; i++) {
+ i2o_flush_reply(c, m);
+ m += MSG_FRAME_SIZE * 4;
+ }
+
+ return 0;
+}
+
+/**
+ * i2o_iop_alloc - Allocate and initialize a i2o_controller struct
+ *
+ * Allocate the necessary memory for a i2o_controller struct and
+ * initialize the lists.
+ *
+ * Returns a pointer to the I2O controller or a negative error code on
+ * failure.
+ */
+struct i2o_controller *i2o_iop_alloc(void)
+{
+ static int unit = 0; /* 0 and 1 are NULL IOP and Local Host */
+ struct i2o_controller *c;
+
+ c = kmalloc(sizeof(*c), GFP_KERNEL);
+ if(!c)
+ {
+ printk(KERN_ERR "i2o: Insufficient memory to allocate the "
+ "controller.\n");
+ return ERR_PTR(-ENOMEM);
+ }
+ memset(c, 0, sizeof(*c));
+
+ INIT_LIST_HEAD(&c->devices);
+ c->lock = SPIN_LOCK_UNLOCKED;
+ init_MUTEX(&c->lct_lock);
+ c->unit = unit ++;
+ sprintf(c->name, "iop%d", c->unit);
+
+#if BITS_PER_LONG == 64
+ c->context_list_lock = SPIN_LOCK_UNLOCKED;
+ atomic_set(&c->context_list_counter, 0);
+ INIT_LIST_HEAD(&c->context_list);
+#endif
+
+ return c;
+};
+
+/**
+ * i2o_iop_free - Free the i2o_controller struct
+ * @c: I2O controller to free
+ */
+void i2o_iop_free(struct i2o_controller *c)
+{
+ kfree(c);
+};
+
+/**
+ * i2o_iop_add - Initialize the I2O controller and add him to the I2O core
+ * @c: controller
+ *
+ * Initialize the I2O controller and if no error occurs add him to the I2O
+ * core.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int i2o_iop_add(struct i2o_controller *c)
+{
+ int rc;
+
+ printk(KERN_INFO "%s: Activating I2O controller...\n", c->name);
+ printk(KERN_INFO "%s: This may take a few minutes if there are many "
+ "devices\n", c->name);
+
+ if((rc = i2o_iop_activate(c))) {
+ printk(KERN_ERR "%s: controller could not activated\n",
+ c->name);
+ i2o_iop_reset(c);
+ return rc;
+ }
+
+ DBG("building sys table %s...\n", c->name);
+
+ if((rc = i2o_systab_build())) {
+ i2o_iop_reset(c);
+ return rc;
+ }
+
+ DBG("online controller %s...\n", c->name);
+
+ if((rc = i2o_iop_online(c))) {
+ i2o_iop_reset(c);
+ return rc;
+ }
+
+ DBG("getting LCT %s...\n", c->name);
+
+ if((rc = i2o_exec_lct_get(c))) {
+ i2o_iop_reset(c);
+ return rc;
+ }
+
+ list_add(&c->list, &i2o_controllers);
+
+ printk(KERN_INFO "%s: Controller added\n", c->name);
+
+ return 0;
+};
+
+/**
+ * i2o_iop_remove - Remove the I2O controller from the I2O core
+ * @c: I2O controller
+ *
+ * Remove the I2O controller from the I2O core. If devices are attached to
+ * the controller remove these also and finally reset the controller.
+ */
+void i2o_iop_remove(struct i2o_controller *c)
+{
+ struct i2o_device *dev, *tmp;
+
+ DBG("Deleting controller %s\n", c->name);
+
+ list_del(&c->list);
+
+ list_for_each_entry_safe(dev, tmp, &c->devices, list)
+ i2o_device_remove(dev);
+
+ /* Ask the IOP to switch to RESET state */
+ i2o_iop_reset(c);
+}
+
+/**
+ * i2o_event_register - Turn on/off event notification for a I2O device
+ * @dev: I2O device which should receive the event registration request
+ * @drv: driver which want to get notified
+ * @tcntxt: transaction context to use with this notifier
+ * @evt_mask: mask of events
+ *
+ * Create and posts an event registration message to the task. No reply
+ * is waited for, or expected. If you do not want further notifications,
+ * call the i2o_event_register again with a evt_mask of 0.
+ *
+ * Returns 0 on success or -ETIMEDOUT if no message could be fetched for
+ * sending the request.
+ */
+int i2o_event_register(struct i2o_device *dev, struct i2o_driver *drv, int tcntxt, u32 evt_mask)
+{
+ struct i2o_controller *c = dev->iop;
+ struct i2o_message *msg;
+ u32 m;
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m == I2O_QUEUE_EMPTY)
+ return -ETIMEDOUT;
+
+ writel(FIVE_WORD_MSG_SIZE|SGL_OFFSET_0, &msg->head[0]);
+ writel(I2O_CMD_UTIL_EVT_REGISTER<<24|HOST_TID<<12|dev->lct_data.tid,
+ &msg->head[1]);
+ writel(drv->context, &msg->icntxt);
+ writel(tcntxt, &msg->tcntxt);
+ writel(evt_mask, &msg->body[0]);
+
+ i2o_msg_post(c, m);
+
+ return 0;
+};
+
+/**
+ * i2o_iop_init - I2O main initialization function
+ *
+ * Initialize the I2O drivers (OSM) functions, register the Executive OSM,
+ * initialize the I2O PCI part and finally initialize I2O device stuff.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_iop_init(void)
+{
+ int rc = 0;
+
+ printk(KERN_INFO "I2O Core - (C) Copyright 1999 Red Hat Software\n");
+
+ rc = i2o_device_init();
+ if(rc)
+ goto exit;
+
+ rc = i2o_driver_init();
+ if(rc)
+ goto device_exit;
+
+ rc = i2o_exec_init();
+ if(rc)
+ goto driver_exit;
+
+ rc = i2o_pci_init();
+ if(rc<0)
+ goto exec_exit;
+
+ return 0;
+
+exec_exit:
+ i2o_exec_exit();
+
+driver_exit:
+ i2o_driver_exit();
+
+device_exit:
+ i2o_device_exit();
+
+exit:
+ return rc;
+}
+
+/**
+ * i2o_iop_exit - I2O main exit function
+ *
+ * Removes I2O controllers from PCI subsystem and shut down OSMs.
+ */
+static void __exit i2o_iop_exit(void)
+{
+ i2o_pci_exit();
+ i2o_exec_exit();
+ i2o_driver_exit();
+ i2o_device_exit();
+};
+
+
+module_init(i2o_iop_init);
+module_exit(i2o_iop_exit);
+
+
+MODULE_AUTHOR("Red Hat Software");
+MODULE_DESCRIPTION("I2O Core");
+MODULE_LICENSE("GPL");
+
+
+#if BITS_PER_LONG == 64
+EXPORT_SYMBOL(i2o_cntxt_list_add);
+EXPORT_SYMBOL(i2o_cntxt_list_get);
+EXPORT_SYMBOL(i2o_cntxt_list_remove);
+#endif
+EXPORT_SYMBOL(i2o_msg_get_wait);
+EXPORT_SYMBOL(i2o_msg_nop);
+EXPORT_SYMBOL(i2o_find_iop);
+EXPORT_SYMBOL(i2o_iop_find_device);
+EXPORT_SYMBOL(i2o_event_register);
+EXPORT_SYMBOL(i2o_status_get);
+EXPORT_SYMBOL(i2o_hrt_get);
+EXPORT_SYMBOL(i2o_controllers);
diff -puN drivers/message/i2o/Makefile~i2o-build_99 drivers/message/i2o/Makefile
--- 25/drivers/message/i2o/Makefile~i2o-build_99 Tue Jul 27 14:06:32 2004
+++ 25-akpm/drivers/message/i2o/Makefile Tue Jul 27 14:06:32 2004
@@ -5,6 +5,11 @@
# In the future, some of these should be built conditionally.
#
+i2o_core-y += iop.o driver.o device.o debug.o pci.o exec-osm.o
+i2o_block-y += block-osm.o
+i2o_proc-y += proc-osm.o
+i2o_config-y += config-osm.o
+i2o_scsi-y += scsi-osm.o
obj-$(CONFIG_I2O) += i2o_core.o
obj-$(CONFIG_I2O_CONFIG)+= i2o_config.o
obj-$(CONFIG_I2O_BLOCK) += i2o_block.o
diff -puN /dev/null drivers/message/i2o/pci.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/pci.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,541 @@
+/*
+ * PCI handling of I2O controller
+ *
+ * Copyright (C) 1999-2002 Red Hat Software
+ *
+ * Written by Alan Cox, Building Number Three Ltd
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * A lot of the I2O message side code from this is taken from the Red
+ * Creek RCPCI45 adapter driver by Red Creek Communications
+ *
+ * Fixes/additions:
+ * Philipp Rumpf
+ * Juha Siev�nen <Juha.Sievanen@cs.Helsinki.FI>
+ * Auvo H�kkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ * Deepak Saxena <deepak@plexity.net>
+ * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ * Alan Cox <alan@redhat.com>:
+ * Ported to Linux 2.5.
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Minor fixes for 2.6.
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Support for sysfs included.
+ */
+
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+
+#ifdef CONFIG_MTRR
+#include <asm/mtrr.h>
+#endif // CONFIG_MTRR
+
+#include <linux/i2o.h>
+
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+
+/* Module internal functions from other sources */
+extern struct i2o_controller *i2o_iop_alloc(void);
+extern void i2o_iop_free(struct i2o_controller *);
+
+extern int i2o_iop_add(struct i2o_controller *);
+extern void i2o_iop_remove(struct i2o_controller *);
+
+extern int i2o_driver_dispatch(struct i2o_controller *,u32,struct i2o_message*);
+
+
+/* Internal used functions */
+static int __devinit i2o_pci_probe(struct pci_dev *,
+ const struct pci_device_id *);
+static void __devexit i2o_pci_remove(struct pci_dev *);
+
+static int __devinit i2o_pci_alloc(struct i2o_controller *);
+static void __devexit i2o_pci_free(struct i2o_controller *);
+
+static int i2o_pci_irq_enable(struct i2o_controller *);
+static void i2o_pci_irq_disable(struct i2o_controller *);
+static irqreturn_t i2o_pci_interrupt(int, void *, struct pt_regs *);
+
+/* init / exit functions */
+int __init i2o_pci_init(void);
+void __exit i2o_pci_exit(void);
+
+
+/* PCI device id table for all I2O controllers */
+static struct pci_device_id __devinitdata i2o_pci_ids[] = {
+ { PCI_DEVICE_CLASS(PCI_CLASS_INTELLIGENT_I2O<<8, 0xffff00) },
+ { PCI_DEVICE(PCI_VENDOR_ID_DPT, 0xa511) },
+ { 0 }
+};
+
+/* PCI driver for I2O controller */
+static struct pci_driver i2o_pci_driver = {
+ .name = "I2O controller",
+ .id_table = i2o_pci_ids,
+ .probe = i2o_pci_probe,
+ .remove = __devexit_p(i2o_pci_remove),
+};
+
+
+/**
+ * i2o_dma_realloc - Realloc DMA memory
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: pointer to a i2o_dma struct DMA buffer
+ * @len: new length of memory
+ * @gfp_mask: GFP mask
+ *
+ * If there was something allocated in the addr, free it first. If len > 0
+ * than try to allocate it and write the addresses back to the addr
+ * structure. If len == 0 set the virtual address to NULL.
+ *
+ * Returns the 0 on success or negative error code on failure.
+ */
+int i2o_dma_realloc(struct device *dev, struct i2o_dma *addr, size_t len,
+ unsigned int gfp_mask)
+{
+ i2o_dma_free(dev, addr);
+
+ if(len)
+ return i2o_dma_alloc(dev, addr, len, gfp_mask);
+
+ return 0;
+};
+
+/**
+ * i2o_pci_probe - Probe the PCI device for an I2O controller
+ * @dev: PCI device to test
+ * @id: id which matched with the PCI device id table
+ *
+ * Probe the PCI device for any device which is a memory of the
+ * Intelligent, I2O class or an Adaptec Zero Channel Controller. We
+ * attempt to set up each such device and register it with the core.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __devinit i2o_pci_probe(struct pci_dev *pdev,
+ const struct pci_device_id *id)
+{
+ struct i2o_controller *c;
+ int rc;
+
+ printk(KERN_INFO "i2o: Checking for PCI I2O controllers...\n");
+
+ if((pdev->class&0xff)>1) {
+ printk(KERN_WARNING "i2o: I2O controller found but does not "
+ "support I2O 1.5 (skipping).\n");
+ return -ENODEV;
+ }
+
+ if((rc=pci_enable_device(pdev))) {
+ printk(KERN_WARNING "i2o: I2O controller found but could not be"
+ " enabled.\n");
+ return rc;
+ }
+
+ printk(KERN_INFO "i2o: I2O controller found on bus %d at %d.\n",
+ pdev->bus->number, pdev->devfn);
+
+ if(pci_set_dma_mask(pdev, DMA_32BIT_MASK)) {
+ printk(KERN_WARNING "i2o: I2O controller on bus %d at %d: No "
+ "suitable DMA available!\n", pdev->bus->number,
+ pdev->devfn);
+ rc = -ENODEV;
+ goto disable;
+ }
+
+ pci_set_master(pdev);
+
+ c = i2o_iop_alloc();
+ if(IS_ERR(c)) {
+ printk(KERN_ERR "i2o: memory for I2O controller could not be "
+ "allocated\n");
+ rc = PTR_ERR(c);
+ goto disable;
+ }
+
+ c->pdev = pdev;
+ c->device = pdev->dev;
+
+ /* Cards that fall apart if you hit them with large I/O loads... */
+ if(pdev->vendor == PCI_VENDOR_ID_NCR && pdev->device == 0x0630) {
+ c->short_req = 1;
+ printk(KERN_INFO "i2o: Symbios FC920 workarounds activated.\n");
+ }
+
+ if(pdev->subsystem_vendor == PCI_VENDOR_ID_PROMISE) {
+ c->promise = 1;
+ printk(KERN_INFO "i2o: Promise workarounds activated.\n");
+ }
+
+ /* Cards that go bananas if you quiesce them before you reset them. */
+ if(pdev->vendor == PCI_VENDOR_ID_DPT) {
+ c->no_quiesce = 1;
+ if(pdev->device == 0xa511)
+ c->raptor = 1;
+ }
+
+ if((rc=i2o_pci_alloc(c))) {
+ printk(KERN_ERR "i2o: DMA / IO allocation for I2O controller "
+ " failed\n");
+ goto free_controller;
+ }
+
+ if(i2o_pci_irq_enable(c)) {
+ printk(KERN_ERR "i2o: unable to enable interrupts for I2O "
+ "controller\n");
+ goto free_pci;
+ }
+
+ if((rc = i2o_iop_add(c)))
+ goto uninstall;
+
+ return 0;
+
+uninstall:
+ i2o_pci_irq_disable(c);
+
+free_pci:
+ i2o_pci_free(c);
+
+free_controller:
+ i2o_iop_free(c);
+
+disable:
+ pci_disable_device(pdev);
+
+ return rc;
+}
+
+/**
+ * i2o_pci_remove - Removes a I2O controller from the system
+ * pdev: I2O controller which should be removed
+ *
+ * Reset the I2O controller, disable interrupts and remove all allocated
+ * resources.
+ */
+static void __devexit i2o_pci_remove(struct pci_dev *pdev)
+{
+ struct i2o_controller *c;
+ c = pci_get_drvdata(pdev);
+
+ i2o_iop_remove(c);
+ i2o_pci_irq_disable(c);
+ i2o_pci_free(c);
+
+ printk(KERN_INFO "%s: Controller removed.\n", c->name);
+
+ i2o_iop_free(c);
+ pci_disable_device(pdev);
+};
+
+/**
+ * i2o_pci_alloc - Allocate DMA memory, map IO memory for I2O controller
+ * @c: I2O controller
+ *
+ * Allocate DMA memory for a PCI (or in theory AGP) I2O controller. All
+ * IO mappings are also done here. If MTRR is enabled, also do add memory
+ * regions here.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __devinit i2o_pci_alloc(struct i2o_controller *c)
+{
+ struct pci_dev *pdev = c->pdev;
+ struct device *dev = &pdev->dev;
+ int i;
+
+ for(i=0; i<6; i++) {
+ /* Skip I/O spaces */
+ if(!(pci_resource_flags(pdev, i) & IORESOURCE_IO)) {
+ if(!c->base.phys) {
+ c->base.phys = pci_resource_start(pdev, i);
+ c->base.len = pci_resource_len(pdev, i);
+ if(!c->raptor)
+ break;
+ } else {
+ c->in_queue.phys = pci_resource_start(pdev, i);
+ c->in_queue.len = pci_resource_len(pdev, i);
+ break;
+ }
+ }
+ }
+
+ if(i==6) {
+ printk(KERN_ERR "i2o: I2O controller has no memory regions"
+ " defined.\n");
+ i2o_pci_free(c);
+ return -EINVAL;
+ }
+
+ /* Map the I2O controller */
+ if(c->raptor) {
+ printk(KERN_INFO "i2o: PCI I2O controller\n");
+ printk(KERN_INFO " BAR0 at 0x%08lX size=%ld\n",
+ (unsigned long)c->base.phys, (unsigned long)c->base.len);
+ printk(KERN_INFO " BAR1 at 0x%08lX size=%ld\n",
+ (unsigned long)c->in_queue.phys,
+ (unsigned long)c->in_queue.len);
+ } else
+ printk(KERN_INFO "i2o: PCI I2O controller at %08lX size=%ld\n",
+ (unsigned long)c->base.phys, (unsigned long)c->base.len);
+
+ c->base.virt = ioremap(c->base.phys, c->base.len);
+ if(!c->base.virt) {
+ printk(KERN_ERR "i2o: Unable to map controller.\n");
+ return -ENOMEM;
+ }
+
+ if(c->raptor) {
+ c->in_queue.virt = ioremap(c->in_queue.phys, c->in_queue.len);
+ if(!c->in_queue.virt) {
+ printk(KERN_ERR "i2o: Unable to map controller.\n");
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+ } else
+ c->in_queue = c->base;
+
+ c->irq_mask = c->base.virt+0x34;
+ c->post_port = c->base.virt+0x40;
+ c->reply_port = c->base.virt+0x44;
+
+#ifdef CONFIG_MTRR
+ /* Enable Write Combining MTRR for IOP's memory region */
+ c->mtrr_reg0 = mtrr_add(c->in_queue.phys, c->in_queue.len,
+ MTRR_TYPE_WRCOMB, 1);
+ c->mtrr_reg1 = -1;
+
+ if(c->mtrr_reg0<0)
+ printk(KERN_WARNING "i2o: could not enable write combining "
+ "MTRR\n");
+ else
+ printk(KERN_INFO "i2o: using write combining MTRR\n");
+
+ /*
+ * If it is an INTEL i960 I/O processor then set the first 64K to
+ * Uncacheable since the region contains the messaging unit which
+ * shouldn't be cached.
+ */
+ if((pdev->vendor == PCI_VENDOR_ID_INTEL ||
+ pdev->vendor == PCI_VENDOR_ID_DPT) && !c->raptor) {
+ printk(KERN_INFO "i2o: MTRR workaround for Intel i960 processor"
+ "\n");
+ c->mtrr_reg1 = mtrr_add(c->base.phys, 0x10000,
+ MTRR_TYPE_UNCACHABLE, 1);
+
+ if(c->mtrr_reg1<0) {
+ printk(KERN_WARNING "i2o_pci: Error in setting "
+ "MTRR_TYPE_UNCACHABLE\n");
+ mtrr_del(c->mtrr_reg0,c->in_queue.phys,c->in_queue.len);
+ c->mtrr_reg0 = -1;
+ }
+ }
+#endif
+
+ if(i2o_dma_alloc(dev, &c->status, 4, GFP_KERNEL)) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if(i2o_dma_alloc(dev, &c->hrt, sizeof(i2o_hrt), GFP_KERNEL)) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if(i2o_dma_alloc(dev, &c->dlct, 8192, GFP_KERNEL)) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if(i2o_dma_alloc(dev, &c->status_block, sizeof(i2o_status_block),
+ GFP_KERNEL)) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if(i2o_dma_alloc(dev, &c->out_queue, MSG_POOL_SIZE, GFP_KERNEL)) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ pci_set_drvdata(pdev, c);
+
+ return 0;
+}
+
+/**
+ * i2o_pci_free - Frees the DMA memory for the I2O controller
+ * @c: I2O controller to free
+ *
+ * Remove all allocated DMA memory and unmap memory IO regions. If MTRR
+ * is enabled, also remove it again.
+ */
+static void __devexit i2o_pci_free(struct i2o_controller *c)
+{
+ struct device *dev;
+
+ dev = &c->pdev->dev;
+
+ i2o_dma_free(dev, &c->out_queue);
+ i2o_dma_free(dev, &c->status_block);
+ if(c->lct)
+ kfree(c->lct);
+ i2o_dma_free(dev, &c->dlct);
+ i2o_dma_free(dev, &c->hrt);
+ i2o_dma_free(dev, &c->status);
+
+#ifdef CONFIG_MTRR
+ if(c->mtrr_reg0 >= 0)
+ mtrr_del(c->mtrr_reg0, 0, 0);
+ if(c->mtrr_reg1 >= 0)
+ mtrr_del(c->mtrr_reg1, 0, 0);
+#endif
+
+ if(c->raptor && c->in_queue.virt)
+ iounmap(c->in_queue.virt);
+
+ if(c->base.virt)
+ iounmap(c->base.virt);
+}
+
+/**
+ * i2o_pci_irq_enable - Allocate interrupt for I2O controller
+ *
+ * Allocate an interrupt for the I2O controller, and activate interrupts
+ * on the I2O controller.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_pci_irq_enable(struct i2o_controller *c)
+{
+ struct pci_dev *pdev = c->pdev;
+ int rc;
+
+ I2O_IRQ_WRITE32(c, 0xffffffff);
+
+ if(pdev->irq) {
+ rc=request_irq(pdev->irq,i2o_pci_interrupt,SA_SHIRQ,c->name,c);
+ if(rc<0) {
+ printk(KERN_ERR "%s: unable to allocate interrupt %d."
+ "\n", c->name, pdev->irq);
+ return rc;
+ }
+ }
+
+ I2O_IRQ_WRITE32(c, 0x00000000);
+
+ printk(KERN_INFO "%s: Installed at IRQ %d\n", c->name, pdev->irq);
+
+ return 0;
+}
+
+/**
+ * i2o_pci_irq_disable - Free interrupt for I2O controller
+ * @c: I2O controller
+ *
+ * Disable interrupts in I2O controller and then free interrupt.
+ */
+static void i2o_pci_irq_disable(struct i2o_controller *c)
+{
+ I2O_IRQ_WRITE32(c, 0xffffffff);
+
+ if(c->pdev->irq > 0)
+ free_irq(c->pdev->irq, c);
+}
+
+/**
+ * i2o_pci_interrupt - Interrupt handler for I2O controller
+ * @irq: interrupt line
+ * @dev_id: pointer to the I2O controller
+ * @r: pointer to registers
+ *
+ * Handle an interrupt from a PCI based I2O controller. This turns out
+ * to be rather simple. We keep the controller pointer in the cookie.
+ */
+static irqreturn_t i2o_pci_interrupt(int irq, void *dev_id, struct pt_regs *r)
+{
+ struct i2o_controller *c = dev_id;
+ struct device *dev = &c->pdev->dev;
+ struct i2o_message *m;
+ u32 mv;
+ u32 *msg;
+
+ /*
+ * Old 960 steppings had a bug in the I2O unit that caused
+ * the queue to appear empty when it wasn't.
+ */
+ mv=I2O_REPLY_READ32(c);
+ if(mv == I2O_QUEUE_EMPTY) {
+ mv=I2O_REPLY_READ32(c);
+ if(unlikely(mv == I2O_QUEUE_EMPTY)) {
+ printk(KERN_INFO "i2o: interrupt and message queue "
+ "empty!\n");
+ return IRQ_NONE;
+ } else
+ DBG("960 bug detected\n");
+ }
+
+ while(mv != I2O_QUEUE_EMPTY) {
+ /*
+ * Map the message from the page frame map to kernel virtual.
+ * Because bus_to_virt is deprecated, we have calculate the
+ * location by ourself!
+ */
+ m=(struct i2o_message *)(mv - (unsigned long)c->out_queue.phys +
+ (unsigned long)c->out_queue.virt);
+
+ msg=(u32*)m;
+
+ /*
+ * Ensure this message is seen coherently but cachably by
+ * the processor
+ */
+ dma_sync_single_for_cpu(dev, c->out_queue.phys, MSG_FRAME_SIZE,
+ PCI_DMA_FROMDEVICE);
+
+ /* dispatch it */
+ if(i2o_driver_dispatch(c, mv, m))
+ /* flush it if result != 0 */
+ i2o_flush_reply(c, mv);
+
+ /*
+ * That 960 bug again...
+ */
+ mv=I2O_REPLY_READ32(c);
+ if(mv==I2O_QUEUE_EMPTY)
+ mv=I2O_REPLY_READ32(c);
+ }
+ return IRQ_HANDLED;
+}
+
+/**
+ * i2o_pci_init - registers I2O PCI driver in PCI subsystem
+ *
+ * Returns > 0 on success or negative error code on failure.
+ */
+int __init i2o_pci_init(void)
+{
+ return pci_register_driver(&i2o_pci_driver);
+};
+
+/**
+ * i2o_pci_exit - unregisters I2O PCI driver from PCI subsystem
+ */
+void __exit i2o_pci_exit(void)
+{
+ pci_unregister_driver(&i2o_pci_driver);
+};
+
+EXPORT_SYMBOL(i2o_dma_realloc);
diff -puN /dev/null drivers/message/i2o/proc-osm.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/proc-osm.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,2123 @@
+/*
+ * procfs handler for Linux I2O subsystem
+ *
+ * (c) Copyright 1999 Deepak Saxena
+ *
+ * Originally written by Deepak Saxena(deepak@plexity.net)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This is an initial test release. The code is based on the design of the
+ * ide procfs system (drivers/block/ide-proc.c). Some code taken from
+ * i2o-core module by Alan Cox.
+ *
+ * DISCLAIMER: This code is still under development/test and may cause
+ * your system to behave unpredictably. Use at your own discretion.
+ *
+ *
+ * Fixes/additions:
+ * Juha Siev�nen (Juha.Sievanen@cs.Helsinki.FI),
+ * Auvo H�kkinen (Auvo.Hakkinen@cs.Helsinki.FI)
+ * University of Helsinki, Department of Computer Science
+ * LAN entries
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>
+ * Changes for new I2O API
+ */
+
+#undef DEBUG
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+#define I2O_MAX_MODULES 4
+// FIXME!
+#define FMT_U64_HEX "0x%08x%08x"
+#define U64_VAL(pu64) *((u32*)(pu64)+1), *((u32*)(pu64))
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/i2o.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/byteorder.h>
+
+
+/* Structure used to define /proc entries */
+typedef struct _i2o_proc_entry_t
+{
+ char *name; /* entry name */
+ mode_t mode; /* mode */
+ struct file_operations *fops; /* open function */
+} i2o_proc_entry;
+
+/* helper functions */
+static int print_serial_number(struct seq_file *, u8 *, int);
+static const char *i2o_get_class_name(int);
+
+static int i2o_proc_create_entries(struct proc_dir_entry *, i2o_proc_entry *,
+ void *);
+static void i2o_proc_subdir_remove(struct proc_dir_entry *);
+
+static int i2o_proc_iop_add(struct proc_dir_entry *, struct i2o_controller *);
+static void i2o_proc_iop_remove(struct proc_dir_entry *,struct i2o_controller*);
+
+static void i2o_proc_device_add(struct proc_dir_entry *, struct i2o_device *);
+
+static int __init i2o_proc_fs_create(void);
+static int __exit i2o_proc_fs_destroy(void);
+
+static int __init i2o_proc_init(void);
+static void __exit i2o_proc_exit(void);
+
+/* show functions */
+static int i2o_seq_show_lct(struct seq_file *, void *);
+static int i2o_seq_show_hrt(struct seq_file *, void *);
+static int i2o_seq_show_status(struct seq_file *, void *);
+
+static int i2o_seq_show_hw(struct seq_file *, void *);
+static int i2o_seq_show_ddm_table(struct seq_file *, void *);
+static int i2o_seq_show_driver_store(struct seq_file *, void *);
+static int i2o_seq_show_drivers_stored(struct seq_file *, void *);
+
+static int i2o_seq_show_groups(struct seq_file *, void *);
+static int i2o_seq_show_phys_device(struct seq_file *, void *);
+static int i2o_seq_show_claimed(struct seq_file *, void *);
+static int i2o_seq_show_users(struct seq_file *, void *);
+static int i2o_seq_show_priv_msgs(struct seq_file *, void *);
+static int i2o_seq_show_authorized_users(struct seq_file *, void *);
+
+static int i2o_seq_show_dev_name(struct seq_file *, void *);
+static int i2o_seq_show_dev_identity(struct seq_file *, void *);
+static int i2o_seq_show_ddm_identity(struct seq_file *, void *);
+static int i2o_seq_show_uinfo(struct seq_file *, void *);
+static int i2o_seq_show_sgl_limits(struct seq_file *, void *);
+
+static int i2o_seq_show_sensors(struct seq_file *, void *);
+
+
+/* global I2O /proc/i2o entry */
+static struct proc_dir_entry *i2o_proc_dir_root;
+
+/* proc OSM driver struct */
+static struct i2o_driver i2o_proc_driver = {
+ .name = "proc-osm",
+};
+
+
+static int print_serial_number(struct seq_file *seq, u8 *serialno, int max_len)
+{
+ int i;
+
+ /* 19990419 -sralston
+ * The I2O v1.5 (and v2.0 so far) "official specification"
+ * got serial numbers WRONG!
+ * Apparently, and despite what Section 3.4.4 says and
+ * Figure 3-35 shows (pg 3-39 in the pdf doc),
+ * the convention / consensus seems to be:
+ * + First byte is SNFormat
+ * + Second byte is SNLen (but only if SNFormat==7 (?))
+ * + (v2.0) SCSI+BS may use IEEE Registered (64 or 128 bit) format
+ */
+ switch(serialno[0])
+ {
+ case I2O_SNFORMAT_BINARY: /* Binary */
+ seq_printf(seq, "0x");
+ for(i = 0; i < serialno[1]; i++)
+ {
+ seq_printf(seq, "%02X", serialno[2+i]);
+ }
+ break;
+
+ case I2O_SNFORMAT_ASCII: /* ASCII */
+ if ( serialno[1] < ' ' ) /* printable or SNLen? */
+ {
+ /* sanity */
+ max_len = (max_len < serialno[1]) ? max_len : serialno[1];
+ serialno[1+max_len] = '\0';
+
+ /* just print it */
+ seq_printf(seq, "%s", &serialno[2]);
+ }
+ else
+ {
+ /* print chars for specified length */
+ for(i = 0; i < serialno[1]; i++)
+ {
+ seq_printf(seq, "%c", serialno[2+i]);
+ }
+ }
+ break;
+
+ case I2O_SNFORMAT_UNICODE: /* UNICODE */
+ seq_printf(seq, "UNICODE Format. Can't Display\n");
+ break;
+
+ case I2O_SNFORMAT_LAN48_MAC: /* LAN-48 MAC Address */
+ seq_printf(seq,
+ "LAN-48 MAC address @ %02X:%02X:%02X:%02X:%02X:%02X",
+ serialno[2], serialno[3],
+ serialno[4], serialno[5],
+ serialno[6], serialno[7]);
+ break;
+
+ case I2O_SNFORMAT_WAN: /* WAN MAC Address */
+ /* FIXME: Figure out what a WAN access address looks like?? */
+ seq_printf(seq, "WAN Access Address");
+ break;
+
+/* plus new in v2.0 */
+ case I2O_SNFORMAT_LAN64_MAC: /* LAN-64 MAC Address */
+ /* FIXME: Figure out what a LAN-64 address really looks like?? */
+ seq_printf(seq,
+ "LAN-64 MAC address @ [?:%02X:%02X:?] %02X:%02X:%02X:%02X:%02X:%02X",
+ serialno[8], serialno[9],
+ serialno[2], serialno[3],
+ serialno[4], serialno[5],
+ serialno[6], serialno[7]);
+ break;
+
+
+ case I2O_SNFORMAT_DDM: /* I2O DDM */
+ seq_printf(seq,
+ "DDM: Tid=%03Xh, Rsvd=%04Xh, OrgId=%04Xh",
+ *(u16*)&serialno[2],
+ *(u16*)&serialno[4],
+ *(u16*)&serialno[6]);
+ break;
+
+ case I2O_SNFORMAT_IEEE_REG64: /* IEEE Registered (64-bit) */
+ case I2O_SNFORMAT_IEEE_REG128: /* IEEE Registered (128-bit) */
+ /* FIXME: Figure if this is even close?? */
+ seq_printf(seq,
+ "IEEE NodeName(hi,lo)=(%08Xh:%08Xh), PortName(hi,lo)=(%08Xh:%08Xh)\n",
+ *(u32*)&serialno[2],
+ *(u32*)&serialno[6],
+ *(u32*)&serialno[10],
+ *(u32*)&serialno[14]);
+ break;
+
+
+ case I2O_SNFORMAT_UNKNOWN: /* Unknown 0 */
+ case I2O_SNFORMAT_UNKNOWN2: /* Unknown 0xff */
+ default:
+ seq_printf(seq, "Unknown data format (0x%02x)",
+ serialno[0]);
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * i2o_get_class_name - do i2o class name lookup
+ * @class: class number
+ *
+ * Return a descriptive string for an i2o class
+ */
+static const char *i2o_get_class_name(int class)
+{
+ int idx = 16;
+ static char *i2o_class_name[] = {
+ "Executive",
+ "Device Driver Module",
+ "Block Device",
+ "Tape Device",
+ "LAN Interface",
+ "WAN Interface",
+ "Fibre Channel Port",
+ "Fibre Channel Device",
+ "SCSI Device",
+ "ATE Port",
+ "ATE Device",
+ "Floppy Controller",
+ "Floppy Device",
+ "Secondary Bus Port",
+ "Peer Transport Agent",
+ "Peer Transport",
+ "Unknown"
+ };
+
+ switch(class&0xfff) {
+ case I2O_CLASS_EXECUTIVE:
+ idx = 0; break;
+ case I2O_CLASS_DDM:
+ idx = 1; break;
+ case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+ idx = 2; break;
+ case I2O_CLASS_SEQUENTIAL_STORAGE:
+ idx = 3; break;
+ case I2O_CLASS_LAN:
+ idx = 4; break;
+ case I2O_CLASS_WAN:
+ idx = 5; break;
+ case I2O_CLASS_FIBRE_CHANNEL_PORT:
+ idx = 6; break;
+ case I2O_CLASS_FIBRE_CHANNEL_PERIPHERAL:
+ idx = 7; break;
+ case I2O_CLASS_SCSI_PERIPHERAL:
+ idx = 8; break;
+ case I2O_CLASS_ATE_PORT:
+ idx = 9; break;
+ case I2O_CLASS_ATE_PERIPHERAL:
+ idx = 10; break;
+ case I2O_CLASS_FLOPPY_CONTROLLER:
+ idx = 11; break;
+ case I2O_CLASS_FLOPPY_DEVICE:
+ idx = 12; break;
+ case I2O_CLASS_BUS_ADAPTER_PORT:
+ idx = 13; break;
+ case I2O_CLASS_PEER_TRANSPORT_AGENT:
+ idx = 14; break;
+ case I2O_CLASS_PEER_TRANSPORT:
+ idx = 15; break;
+ }
+
+ return i2o_class_name[idx];
+}
+
+static int i2o_seq_open_hrt(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_hrt, PDE(inode)->data);
+};
+
+static int i2o_seq_open_lct(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_lct, PDE(inode)->data);
+};
+
+static int i2o_seq_open_status(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_status, PDE(inode)->data);
+};
+
+static int i2o_seq_open_hw(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_hw, PDE(inode)->data);
+};
+
+static int i2o_seq_open_ddm_table(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_ddm_table, PDE(inode)->data);
+};
+
+static int i2o_seq_open_driver_store(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_driver_store, PDE(inode)->data);
+};
+
+static int i2o_seq_open_drivers_stored(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_drivers_stored, PDE(inode)->data);
+};
+
+static int i2o_seq_open_groups(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_groups, PDE(inode)->data);
+};
+
+static int i2o_seq_open_phys_device(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_phys_device, PDE(inode)->data);
+};
+
+static int i2o_seq_open_claimed(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_claimed, PDE(inode)->data);
+};
+
+static int i2o_seq_open_users(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_users, PDE(inode)->data);
+};
+
+static int i2o_seq_open_priv_msgs(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_priv_msgs, PDE(inode)->data);
+};
+
+static int i2o_seq_open_authorized_users(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_authorized_users, PDE(inode)->data);
+};
+
+static int i2o_seq_open_dev_identity(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_dev_identity, PDE(inode)->data);
+};
+
+static int i2o_seq_open_ddm_identity(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_ddm_identity, PDE(inode)->data);
+};
+
+static int i2o_seq_open_uinfo(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_uinfo, PDE(inode)->data);
+};
+
+static int i2o_seq_open_sgl_limits(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_sgl_limits, PDE(inode)->data);
+};
+
+static int i2o_seq_open_sensors(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_sensors, PDE(inode)->data);
+};
+
+static int i2o_seq_open_dev_name(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_dev_name, PDE(inode)->data);
+};
+
+
+static struct file_operations i2o_seq_fops_lct = {
+ .open = i2o_seq_open_lct,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_hrt = {
+ .open = i2o_seq_open_hrt,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_status = {
+ .open = i2o_seq_open_status,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_hw = {
+ .open = i2o_seq_open_hw,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_ddm_table = {
+ .open = i2o_seq_open_ddm_table,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_driver_store = {
+ .open = i2o_seq_open_driver_store,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_drivers_stored = {
+ .open = i2o_seq_open_drivers_stored,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_groups = {
+ .open = i2o_seq_open_groups,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_phys_device = {
+ .open = i2o_seq_open_phys_device,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_claimed = {
+ .open = i2o_seq_open_claimed,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_users = {
+ .open = i2o_seq_open_users,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_priv_msgs = {
+ .open = i2o_seq_open_priv_msgs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_authorized_users = {
+ .open = i2o_seq_open_authorized_users,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_dev_name = {
+ .open = i2o_seq_open_dev_name,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_dev_identity = {
+ .open = i2o_seq_open_dev_identity,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_ddm_identity = {
+ .open = i2o_seq_open_ddm_identity,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_uinfo = {
+ .open = i2o_seq_open_uinfo,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_sgl_limits = {
+ .open = i2o_seq_open_sgl_limits,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static struct file_operations i2o_seq_fops_sensors = {
+ .open = i2o_seq_open_sensors,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+
+/*
+ * IOP specific entries...write field just in case someone
+ * ever wants one.
+ */
+static i2o_proc_entry i2o_proc_generic_iop_entries[] =
+{
+ {"hrt", S_IFREG|S_IRUGO, &i2o_seq_fops_hrt},
+ {"lct", S_IFREG|S_IRUGO, &i2o_seq_fops_lct},
+ {"status", S_IFREG|S_IRUGO, &i2o_seq_fops_status},
+ {"hw", S_IFREG|S_IRUGO, &i2o_seq_fops_hw},
+ {"ddm_table", S_IFREG|S_IRUGO, &i2o_seq_fops_ddm_table},
+ {"driver_store", S_IFREG|S_IRUGO, &i2o_seq_fops_driver_store},
+ {"drivers_stored", S_IFREG|S_IRUGO, &i2o_seq_fops_drivers_stored},
+ {NULL, 0, NULL}
+};
+
+/*
+ * Device specific entries
+ */
+static i2o_proc_entry generic_dev_entries[] =
+{
+ {"groups", S_IFREG|S_IRUGO, &i2o_seq_fops_groups},
+ {"phys_dev", S_IFREG|S_IRUGO, &i2o_seq_fops_phys_device},
+ {"claimed", S_IFREG|S_IRUGO, &i2o_seq_fops_claimed},
+ {"users", S_IFREG|S_IRUGO, &i2o_seq_fops_users},
+ {"priv_msgs", S_IFREG|S_IRUGO, &i2o_seq_fops_priv_msgs},
+ {"authorized_users", S_IFREG|S_IRUGO, &i2o_seq_fops_authorized_users},
+ {"dev_identity", S_IFREG|S_IRUGO, &i2o_seq_fops_dev_identity},
+ {"ddm_identity", S_IFREG|S_IRUGO, &i2o_seq_fops_ddm_identity},
+ {"user_info", S_IFREG|S_IRUGO, &i2o_seq_fops_uinfo},
+ {"sgl_limits", S_IFREG|S_IRUGO, &i2o_seq_fops_sgl_limits},
+ {"sensors", S_IFREG|S_IRUGO, &i2o_seq_fops_sensors},
+ {NULL, 0, NULL}
+};
+
+/*
+ * Storage unit specific entries (SCSI Periph, BS) with device names
+ */
+static i2o_proc_entry rbs_dev_entries[] =
+{
+ {"dev_name", S_IFREG|S_IRUGO, &i2o_seq_fops_dev_name},
+ {NULL, 0, NULL}
+};
+
+#define SCSI_TABLE_SIZE 13
+static char *scsi_devices[] =
+{
+ "Direct-Access Read/Write",
+ "Sequential-Access Storage",
+ "Printer",
+ "Processor",
+ "WORM Device",
+ "CD-ROM Device",
+ "Scanner Device",
+ "Optical Memory Device",
+ "Medium Changer Device",
+ "Communications Device",
+ "Graphics Art Pre-Press Device",
+ "Graphics Art Pre-Press Device",
+ "Array Controller Device"
+};
+
+
+static char *chtostr(u8 *chars, int n)
+{
+ char tmp[256];
+ tmp[0] = 0;
+ return strncat(tmp, (char *)chars, n);
+}
+
+static int i2o_report_query_status(struct seq_file *seq, int block_status, char *group)
+{
+ switch (block_status)
+ {
+ case -ETIMEDOUT:
+ return seq_printf(seq, "Timeout reading group %s.\n",group);
+ case -ENOMEM:
+ return seq_printf(seq, "No free memory to read the table.\n");
+ case -I2O_PARAMS_STATUS_INVALID_GROUP_ID:
+ return seq_printf(seq, "Group %s not supported.\n", group);
+ default:
+ return seq_printf(seq, "Error reading group %s. BlockStatus 0x%02X\n",
+ group, -block_status);
+ }
+}
+
+static char* bus_strings[] =
+{
+ "Local Bus",
+ "ISA",
+ "EISA",
+ "MCA",
+ "PCI",
+ "PCMCIA",
+ "NUBUS",
+ "CARDBUS"
+};
+
+int i2o_seq_show_hrt(struct seq_file *seq, void *v)
+{
+ struct i2o_controller *c = (struct i2o_controller *)seq->private;
+ i2o_hrt *hrt = (i2o_hrt *)c->hrt.virt;
+ u32 bus;
+ int i;
+
+ if(hrt->hrt_version)
+ {
+ seq_printf(seq, "HRT table for controller is too new a version.\n");
+ return 0;
+ }
+
+ seq_printf(seq, "HRT has %d entries of %d bytes each.\n",
+ hrt->num_entries, hrt->entry_len << 2);
+
+ for(i = 0; i < hrt->num_entries; i++)
+ {
+ seq_printf(seq, "Entry %d:\n", i);
+ seq_printf(seq, " Adapter ID: %0#10x\n",
+ hrt->hrt_entry[i].adapter_id);
+ seq_printf(seq, " Controlling tid: %0#6x\n",
+ hrt->hrt_entry[i].parent_tid);
+
+ if(hrt->hrt_entry[i].bus_type != 0x80)
+ {
+ bus = hrt->hrt_entry[i].bus_type;
+ seq_printf(seq, " %s Information\n", bus_strings[bus]);
+
+ switch(bus)
+ {
+ case I2O_BUS_LOCAL:
+ seq_printf(seq, " IOBase: %0#6x,",
+ hrt->hrt_entry[i].bus.local_bus.LbBaseIOPort);
+ seq_printf(seq, " MemoryBase: %0#10x\n",
+ hrt->hrt_entry[i].bus.local_bus.LbBaseMemoryAddress);
+ break;
+
+ case I2O_BUS_ISA:
+ seq_printf(seq, " IOBase: %0#6x,",
+ hrt->hrt_entry[i].bus.isa_bus.IsaBaseIOPort);
+ seq_printf(seq, " MemoryBase: %0#10x,",
+ hrt->hrt_entry[i].bus.isa_bus.IsaBaseMemoryAddress);
+ seq_printf(seq, " CSN: %0#4x,",
+ hrt->hrt_entry[i].bus.isa_bus.CSN);
+ break;
+
+ case I2O_BUS_EISA:
+ seq_printf(seq, " IOBase: %0#6x,",
+ hrt->hrt_entry[i].bus.eisa_bus.EisaBaseIOPort);
+ seq_printf(seq, " MemoryBase: %0#10x,",
+ hrt->hrt_entry[i].bus.eisa_bus.EisaBaseMemoryAddress);
+ seq_printf(seq, " Slot: %0#4x,",
+ hrt->hrt_entry[i].bus.eisa_bus.EisaSlotNumber);
+ break;
+
+ case I2O_BUS_MCA:
+ seq_printf(seq, " IOBase: %0#6x,",
+ hrt->hrt_entry[i].bus.mca_bus.McaBaseIOPort);
+ seq_printf(seq, " MemoryBase: %0#10x,",
+ hrt->hrt_entry[i].bus.mca_bus.McaBaseMemoryAddress);
+ seq_printf(seq, " Slot: %0#4x,",
+ hrt->hrt_entry[i].bus.mca_bus.McaSlotNumber);
+ break;
+
+ case I2O_BUS_PCI:
+ seq_printf(seq, " Bus: %0#4x",
+ hrt->hrt_entry[i].bus.pci_bus.PciBusNumber);
+ seq_printf(seq, " Dev: %0#4x",
+ hrt->hrt_entry[i].bus.pci_bus.PciDeviceNumber);
+ seq_printf(seq, " Func: %0#4x",
+ hrt->hrt_entry[i].bus.pci_bus.PciFunctionNumber);
+ seq_printf(seq, " Vendor: %0#6x",
+ hrt->hrt_entry[i].bus.pci_bus.PciVendorID);
+ seq_printf(seq, " Device: %0#6x\n",
+ hrt->hrt_entry[i].bus.pci_bus.PciDeviceID);
+ break;
+
+ default:
+ seq_printf(seq, " Unsupported Bus Type\n");
+ }
+ }
+ else
+ seq_printf(seq, " Unknown Bus Type\n");
+ }
+
+ return 0;
+}
+
+int i2o_seq_show_lct(struct seq_file *seq, void *v)
+{
+ struct i2o_controller *c = (struct i2o_controller*)seq->private;
+ i2o_lct *lct = (i2o_lct *)c->lct;
+ int entries;
+ int i;
+
+#define BUS_TABLE_SIZE 3
+ static char *bus_ports[] =
+ {
+ "Generic Bus",
+ "SCSI Bus",
+ "Fibre Channel Bus"
+ };
+
+ entries = (lct->table_size - 3)/9;
+
+ seq_printf(seq, "LCT contains %d %s\n", entries,
+ entries == 1 ? "entry" : "entries");
+ if(lct->boot_tid)
+ seq_printf(seq, "Boot Device @ ID %d\n", lct->boot_tid);
+
+ seq_printf(seq, "Current Change Indicator: %#10x\n", lct->change_ind);
+
+ for(i = 0; i < entries; i++)
+ {
+ seq_printf(seq, "Entry %d\n", i);
+ seq_printf(seq, " Class, SubClass : %s", i2o_get_class_name(lct->lct_entry[i].class_id));
+
+ /*
+ * Classes which we'll print subclass info for
+ */
+ switch(lct->lct_entry[i].class_id & 0xFFF)
+ {
+ case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+ switch(lct->lct_entry[i].sub_class)
+ {
+ case 0x00:
+ seq_printf(seq, ", Direct-Access Read/Write");
+ break;
+
+ case 0x04:
+ seq_printf(seq, ", WORM Drive");
+ break;
+
+ case 0x05:
+ seq_printf(seq, ", CD-ROM Drive");
+ break;
+
+ case 0x07:
+ seq_printf(seq, ", Optical Memory Device");
+ break;
+
+ default:
+ seq_printf(seq, ", Unknown (0x%02x)",
+ lct->lct_entry[i].sub_class);
+ break;
+ }
+ break;
+
+ case I2O_CLASS_LAN:
+ switch(lct->lct_entry[i].sub_class & 0xFF)
+ {
+ case 0x30:
+ seq_printf(seq, ", Ethernet");
+ break;
+
+ case 0x40:
+ seq_printf(seq, ", 100base VG");
+ break;
+
+ case 0x50:
+ seq_printf(seq, ", IEEE 802.5/Token-Ring");
+ break;
+
+ case 0x60:
+ seq_printf(seq, ", ANSI X3T9.5 FDDI");
+ break;
+
+ case 0x70:
+ seq_printf(seq, ", Fibre Channel");
+ break;
+
+ default:
+ seq_printf(seq, ", Unknown Sub-Class (0x%02x)",
+ lct->lct_entry[i].sub_class & 0xFF);
+ break;
+ }
+ break;
+
+ case I2O_CLASS_SCSI_PERIPHERAL:
+ if(lct->lct_entry[i].sub_class < SCSI_TABLE_SIZE)
+ seq_printf(seq, ", %s",
+ scsi_devices[lct->lct_entry[i].sub_class]);
+ else
+ seq_printf(seq, ", Unknown Device Type");
+ break;
+
+ case I2O_CLASS_BUS_ADAPTER_PORT:
+ if(lct->lct_entry[i].sub_class < BUS_TABLE_SIZE)
+ seq_printf(seq, ", %s",
+ bus_ports[lct->lct_entry[i].sub_class]);
+ else
+ seq_printf(seq, ", Unknown Bus Type");
+ break;
+ }
+ seq_printf(seq, "\n");
+
+ seq_printf(seq, " Local TID : 0x%03x\n", lct->lct_entry[i].tid);
+ seq_printf(seq, " User TID : 0x%03x\n", lct->lct_entry[i].user_tid);
+ seq_printf(seq, " Parent TID : 0x%03x\n",
+ lct->lct_entry[i].parent_tid);
+ seq_printf(seq, " Identity Tag : 0x%x%x%x%x%x%x%x%x\n",
+ lct->lct_entry[i].identity_tag[0],
+ lct->lct_entry[i].identity_tag[1],
+ lct->lct_entry[i].identity_tag[2],
+ lct->lct_entry[i].identity_tag[3],
+ lct->lct_entry[i].identity_tag[4],
+ lct->lct_entry[i].identity_tag[5],
+ lct->lct_entry[i].identity_tag[6],
+ lct->lct_entry[i].identity_tag[7]);
+ seq_printf(seq, " Change Indicator : %0#10x\n",
+ lct->lct_entry[i].change_ind);
+ seq_printf(seq, " Event Capab Mask : %0#10x\n",
+ lct->lct_entry[i].device_flags);
+ }
+
+ return 0;
+}
+
+int i2o_seq_show_status(struct seq_file *seq, void *v)
+{
+ struct i2o_controller *c = (struct i2o_controller*)seq->private;
+ char prodstr[25];
+ int version;
+ i2o_status_block *sb = c->status_block.virt;
+
+ i2o_status_get(c); // reread the status block
+
+ seq_printf(seq, "Organization ID : %0#6x\n", sb->org_id);
+
+ version = sb->i2o_version;
+
+/* FIXME for Spec 2.0
+ if (version == 0x02) {
+ seq_printf(seq, "Lowest I2O version supported: ");
+ switch(workspace[2]) {
+ case 0x00:
+ seq_printf(seq, "1.0\n");
+ break;
+ case 0x01:
+ seq_printf(seq, "1.5\n");
+ break;
+ case 0x02:
+ seq_printf(seq, "2.0\n");
+ break;
+ }
+
+ seq_printf(seq, "Highest I2O version supported: ");
+ switch(workspace[3]) {
+ case 0x00:
+ seq_printf(seq, "1.0\n");
+ break;
+ case 0x01:
+ seq_printf(seq, "1.5\n");
+ break;
+ case 0x02:
+ seq_printf(seq, "2.0\n");
+ break;
+ }
+ }
+*/
+ seq_printf(seq, "IOP ID : %0#5x\n", sb->iop_id);
+ seq_printf(seq, "Host Unit ID : %0#6x\n", sb->host_unit_id);
+ seq_printf(seq, "Segment Number : %0#5x\n", sb->segment_number);
+
+ seq_printf(seq, "I2O version : ");
+ switch (version) {
+ case 0x00:
+ seq_printf(seq, "1.0\n");
+ break;
+ case 0x01:
+ seq_printf(seq, "1.5\n");
+ break;
+ case 0x02:
+ seq_printf(seq, "2.0\n");
+ break;
+ default:
+ seq_printf(seq, "Unknown version\n");
+ }
+
+ seq_printf(seq, "IOP State : ");
+ switch (sb->iop_state) {
+ case 0x01:
+ seq_printf(seq, "INIT\n");
+ break;
+
+ case 0x02:
+ seq_printf(seq, "RESET\n");
+ break;
+
+ case 0x04:
+ seq_printf(seq, "HOLD\n");
+ break;
+
+ case 0x05:
+ seq_printf(seq, "READY\n");
+ break;
+
+ case 0x08:
+ seq_printf(seq, "OPERATIONAL\n");
+ break;
+
+ case 0x10:
+ seq_printf(seq, "FAILED\n");
+ break;
+
+ case 0x11:
+ seq_printf(seq, "FAULTED\n");
+ break;
+
+ default:
+ seq_printf(seq, "Unknown\n");
+ break;
+ }
+
+ seq_printf(seq, "Messenger Type : ");
+ switch (sb->msg_type) {
+ case 0x00:
+ seq_printf(seq, "Memory mapped\n");
+ break;
+ case 0x01:
+ seq_printf(seq, "Memory mapped only\n");
+ break;
+ case 0x02:
+ seq_printf(seq,"Remote only\n");
+ break;
+ case 0x03:
+ seq_printf(seq, "Memory mapped and remote\n");
+ break;
+ default:
+ seq_printf(seq, "Unknown\n");
+ }
+
+ seq_printf(seq, "Inbound Frame Size : %d bytes\n",
+ sb->inbound_frame_size<<2);
+ seq_printf(seq, "Max Inbound Frames : %d\n",sb->max_inbound_frames);
+ seq_printf(seq, "Current Inbound Frames : %d\n",sb->cur_inbound_frames);
+ seq_printf(seq, "Max Outbound Frames : %d\n",
+ sb->max_outbound_frames);
+
+ /* Spec doesn't say if NULL terminated or not... */
+ memcpy(prodstr, sb->product_id, 24);
+ prodstr[24] = '\0';
+ seq_printf(seq, "Product ID : %s\n", prodstr);
+ seq_printf(seq, "Expected LCT Size : %d bytes\n",
+ sb->expected_lct_size);
+
+ seq_printf(seq, "IOP Capabilities\n");
+ seq_printf(seq, " Context Field Size Support : ");
+ switch (sb->iop_capabilities & 0x0000003) {
+ case 0:
+ seq_printf(seq, "Supports only 32-bit context fields\n");
+ break;
+ case 1:
+ seq_printf(seq, "Supports only 64-bit context fields\n");
+ break;
+ case 2:
+ seq_printf(seq, "Supports 32-bit and 64-bit context fields, "
+ "but not concurrently\n");
+ break;
+ case 3:
+ seq_printf(seq, "Supports 32-bit and 64-bit context fields "
+ "concurrently\n");
+ break;
+ default:
+ seq_printf(seq, "0x%08x\n",sb->iop_capabilities);
+ }
+ seq_printf(seq, " Current Context Field Size : ");
+ switch (sb->iop_capabilities & 0x0000000C) {
+ case 0:
+ seq_printf(seq, "not configured\n");
+ break;
+ case 4:
+ seq_printf(seq, "Supports only 32-bit context fields\n");
+ break;
+ case 8:
+ seq_printf(seq, "Supports only 64-bit context fields\n");
+ break;
+ case 12:
+ seq_printf(seq, "Supports both 32-bit or 64-bit context fields "
+ "concurrently\n");
+ break;
+ default:
+ seq_printf(seq, "\n");
+ }
+ seq_printf(seq, " Inbound Peer Support : %s\n",
+ (sb->iop_capabilities & 0x00000010) ? "Supported" : "Not supported");
+ seq_printf(seq, " Outbound Peer Support : %s\n",
+ (sb->iop_capabilities & 0x00000020) ? "Supported" : "Not supported");
+ seq_printf(seq, " Peer to Peer Support : %s\n",
+ (sb->iop_capabilities & 0x00000040) ? "Supported" : "Not supported");
+
+ seq_printf(seq, "Desired private memory size : %d kB\n",
+ sb->desired_mem_size>>10);
+ seq_printf(seq, "Allocated private memory size : %d kB\n",
+ sb->current_mem_size>>10);
+ seq_printf(seq, "Private memory base address : %0#10x\n",
+ sb->current_mem_base);
+ seq_printf(seq, "Desired private I/O size : %d kB\n",
+ sb->desired_io_size>>10);
+ seq_printf(seq, "Allocated private I/O size : %d kB\n",
+ sb->current_io_size>>10);
+ seq_printf(seq, "Private I/O base address : %0#10x\n",
+ sb->current_io_base);
+
+ return 0;
+}
+
+int i2o_seq_show_hw(struct seq_file *seq, void *v)
+{
+ struct i2o_controller *c = (struct i2o_controller*)seq->private;
+ static u32 work32[5];
+ static u8 *work8 = (u8*)work32;
+ static u16 *work16 = (u16*)work32;
+ int token;
+ u32 hwcap;
+
+ static char *cpu_table[] =
+ {
+ "Intel 80960 series",
+ "AMD2900 series",
+ "Motorola 68000 series",
+ "ARM series",
+ "MIPS series",
+ "Sparc series",
+ "PowerPC series",
+ "Intel x86 series"
+ };
+
+ token = i2o_parm_field_get(c->exec, 0x0000, -1, &work32, sizeof(work32));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token, "0x0000 IOP Hardware");
+ return 0;
+ }
+
+ seq_printf(seq, "I2O Vendor ID : %0#6x\n", work16[0]);
+ seq_printf(seq, "Product ID : %0#6x\n", work16[1]);
+ seq_printf(seq, "CPU : ");
+ if(work8[16] > 8)
+ seq_printf(seq, "Unknown\n");
+ else
+ seq_printf(seq, "%s\n", cpu_table[work8[16]]);
+ /* Anyone using ProcessorVersion? */
+
+ seq_printf(seq, "RAM : %dkB\n", work32[1]>>10);
+ seq_printf(seq, "Non-Volatile Mem : %dkB\n", work32[2]>>10);
+
+ hwcap = work32[3];
+ seq_printf(seq, "Capabilities : 0x%08x\n", hwcap);
+ seq_printf(seq, " [%s] Self booting\n",
+ (hwcap&0x00000001) ? "+" : "-");
+ seq_printf(seq, " [%s] Upgradable IRTOS\n",
+ (hwcap&0x00000002) ? "+" : "-");
+ seq_printf(seq, " [%s] Supports downloading DDMs\n",
+ (hwcap&0x00000004) ? "+" : "-");
+ seq_printf(seq, " [%s] Supports installing DDMs\n",
+ (hwcap&0x00000008) ? "+" : "-");
+ seq_printf(seq, " [%s] Battery-backed RAM\n",
+ (hwcap&0x00000010) ? "+" : "-");
+
+ return 0;
+}
+
+
+/* Executive group 0003h - Executing DDM List (table) */
+int i2o_seq_show_ddm_table(struct seq_file *seq, void *v)
+{
+ struct i2o_controller *c = (struct i2o_controller*)seq->private;
+ int token;
+ int i;
+
+ typedef struct _i2o_exec_execute_ddm_table {
+ u16 ddm_tid;
+ u8 module_type;
+ u8 reserved;
+ u16 i2o_vendor_id;
+ u16 module_id;
+ u8 module_name_version[28];
+ u32 data_size;
+ u32 code_size;
+ } i2o_exec_execute_ddm_table;
+
+ struct
+ {
+ u16 result_count;
+ u16 pad;
+ u16 block_size;
+ u8 block_status;
+ u8 error_info_size;
+ u16 row_count;
+ u16 more_flag;
+ i2o_exec_execute_ddm_table ddm_table[I2O_MAX_MODULES];
+ } *result;
+
+ i2o_exec_execute_ddm_table ddm_table;
+
+ result = kmalloc(sizeof(*result), GFP_KERNEL);
+ if(!result)
+ return -ENOMEM;
+
+ token = i2o_parm_table_get(c->exec, I2O_PARAMS_TABLE_GET, 0x0003, -1,
+ NULL, 0, result, sizeof(*result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token, "0x0003 Executing DDM List");
+ goto out;
+ }
+
+ seq_printf(seq, "Tid Module_type Vendor Mod_id Module_name Vrs Data_size Code_size\n");
+ ddm_table=result->ddm_table[0];
+
+ for(i=0; i < result->row_count; ddm_table=result->ddm_table[++i])
+ {
+ seq_printf(seq, "0x%03x ", ddm_table.ddm_tid & 0xFFF);
+
+ switch(ddm_table.module_type)
+ {
+ case 0x01:
+ seq_printf(seq, "Downloaded DDM ");
+ break;
+ case 0x22:
+ seq_printf(seq, "Embedded DDM ");
+ break;
+ default:
+ seq_printf(seq, " ");
+ }
+
+ seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id);
+ seq_printf(seq, "%-#8x", ddm_table.module_id);
+ seq_printf(seq, "%-29s", chtostr(ddm_table.module_name_version, 28));
+ seq_printf(seq, "%9d ", ddm_table.data_size);
+ seq_printf(seq, "%8d", ddm_table.code_size);
+
+ seq_printf(seq, "\n");
+ }
+out:
+ kfree(result);
+ return 0;
+}
+
+
+/* Executive group 0004h - Driver Store (scalar) */
+int i2o_seq_show_driver_store(struct seq_file *seq, void *v)
+{
+ struct i2o_controller *c = (struct i2o_controller*)seq->private;
+ u32 work32[8];
+ int token;
+
+ token = i2o_parm_field_get(c->exec, 0x0004, -1, &work32, sizeof(work32));
+ if (token < 0) {
+ i2o_report_query_status(seq, token, "0x0004 Driver Store");
+ return 0;
+ }
+
+ seq_printf(seq, "Module limit : %d\n"
+ "Module count : %d\n"
+ "Current space : %d kB\n"
+ "Free space : %d kB\n",
+ work32[0], work32[1], work32[2]>>10, work32[3]>>10);
+
+ return 0;
+}
+
+
+/* Executive group 0005h - Driver Store Table (table) */
+int i2o_seq_show_drivers_stored(struct seq_file *seq, void *v)
+{
+ typedef struct _i2o_driver_store {
+ u16 stored_ddm_index;
+ u8 module_type;
+ u8 reserved;
+ u16 i2o_vendor_id;
+ u16 module_id;
+ u8 module_name_version[28];
+ u8 date[8];
+ u32 module_size;
+ u32 mpb_size;
+ u32 module_flags;
+ } i2o_driver_store_table;
+
+ struct i2o_controller *c = (struct i2o_controller*)seq->private;
+ int token;
+ int i;
+
+ typedef struct
+ {
+ u16 result_count;
+ u16 pad;
+ u16 block_size;
+ u8 block_status;
+ u8 error_info_size;
+ u16 row_count;
+ u16 more_flag;
+ i2o_driver_store_table dst[I2O_MAX_MODULES];
+ } i2o_driver_result_table;
+
+ i2o_driver_result_table *result;
+ i2o_driver_store_table *dst;
+
+
+ result = kmalloc(sizeof(i2o_driver_result_table), GFP_KERNEL);
+ if(result == NULL)
+ return -ENOMEM;
+
+ token = i2o_parm_table_get(c->exec, I2O_PARAMS_TABLE_GET, 0x0005, -1,
+ NULL, 0, result, sizeof(*result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token,"0x0005 DRIVER STORE TABLE");
+ kfree(result);
+ return 0;
+ }
+
+ seq_printf(seq, "# Module_type Vendor Mod_id Module_name Vrs"
+ "Date Mod_size Par_size Flags\n");
+ for(i=0, dst=&result->dst[0]; i < result->row_count; dst=&result->dst[++i])
+ {
+ seq_printf(seq, "%-3d", dst->stored_ddm_index);
+ switch(dst->module_type)
+ {
+ case 0x01:
+ seq_printf(seq, "Downloaded DDM ");
+ break;
+ case 0x22:
+ seq_printf(seq, "Embedded DDM ");
+ break;
+ default:
+ seq_printf(seq, " ");
+ }
+
+#if 0
+ if(c->i2oversion == 0x02)
+ seq_printf(seq, "%-d", dst->module_state);
+#endif
+
+ seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
+ seq_printf(seq, "%-#8x", dst->module_id);
+ seq_printf(seq, "%-29s", chtostr(dst->module_name_version,28));
+ seq_printf(seq, "%-9s", chtostr(dst->date,8));
+ seq_printf(seq, "%8d ", dst->module_size);
+ seq_printf(seq, "%8d ", dst->mpb_size);
+ seq_printf(seq, "0x%04x", dst->module_flags);
+#if 0
+ if(c->i2oversion == 0x02)
+ seq_printf(seq, "%d",
+ dst->notification_level);
+#endif
+ seq_printf(seq, "\n");
+ }
+
+ kfree(result);
+ return 0;
+}
+
+
+/* Generic group F000h - Params Descriptor (table) */
+int i2o_seq_show_groups(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+ int i;
+ u8 properties;
+
+ typedef struct _i2o_group_info
+ {
+ u16 group_number;
+ u16 field_count;
+ u16 row_count;
+ u8 properties;
+ u8 reserved;
+ } i2o_group_info;
+
+ struct
+ {
+ u16 result_count;
+ u16 pad;
+ u16 block_size;
+ u8 block_status;
+ u8 error_info_size;
+ u16 row_count;
+ u16 more_flag;
+ i2o_group_info group[256];
+ } *result;
+
+ result = kmalloc(sizeof(*result), GFP_KERNEL);
+ if(!result)
+ return -ENOMEM;
+
+ token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF000, -1, NULL, 0,
+ result, sizeof(*result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token, "0xF000 Params Descriptor");
+ goto out;
+ }
+
+ seq_printf(seq, "# Group FieldCount RowCount Type Add Del Clear\n");
+
+ for (i=0; i < result->row_count; i++)
+ {
+ seq_printf(seq, "%-3d", i);
+ seq_printf(seq, "0x%04X ", result->group[i].group_number);
+ seq_printf(seq, "%10d ", result->group[i].field_count);
+ seq_printf(seq, "%8d ", result->group[i].row_count);
+
+ properties = result->group[i].properties;
+ if (properties & 0x1) seq_printf(seq, "Table ");
+ else seq_printf(seq, "Scalar ");
+ if (properties & 0x2) seq_printf(seq, " + ");
+ else seq_printf(seq, " - ");
+ if (properties & 0x4) seq_printf(seq, " + ");
+ else seq_printf(seq, " - ");
+ if (properties & 0x8) seq_printf(seq, " + ");
+ else seq_printf(seq, " - ");
+
+ seq_printf(seq, "\n");
+ }
+
+ if (result->more_flag)
+ seq_printf(seq, "There is more...\n");
+out:
+ kfree(result);
+ return 0;
+}
+
+
+/* Generic group F001h - Physical Device Table (table) */
+int i2o_seq_show_phys_device(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+ int i;
+
+ struct
+ {
+ u16 result_count;
+ u16 pad;
+ u16 block_size;
+ u8 block_status;
+ u8 error_info_size;
+ u16 row_count;
+ u16 more_flag;
+ u32 adapter_id[64];
+ } result;
+
+ token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF001, -1, NULL, 0,
+ &result, sizeof(result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token, "0xF001 Physical Device Table");
+ return 0;
+ }
+
+ if (result.row_count)
+ seq_printf(seq, "# AdapterId\n");
+
+ for (i=0; i < result.row_count; i++)
+ {
+ seq_printf(seq, "%-2d", i);
+ seq_printf(seq, "%#7x\n", result.adapter_id[i]);
+ }
+
+ if (result.more_flag)
+ seq_printf(seq, "There is more...\n");
+
+ return 0;
+}
+
+/* Generic group F002h - Claimed Table (table) */
+int i2o_seq_show_claimed(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+ int i;
+
+ struct {
+ u16 result_count;
+ u16 pad;
+ u16 block_size;
+ u8 block_status;
+ u8 error_info_size;
+ u16 row_count;
+ u16 more_flag;
+ u16 claimed_tid[64];
+ } result;
+
+ token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF002, -1, NULL, 0,
+ &result, sizeof(result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token, "0xF002 Claimed Table");
+ return 0;
+ }
+
+ if (result.row_count)
+ seq_printf(seq, "# ClaimedTid\n");
+
+ for (i=0; i < result.row_count; i++)
+ {
+ seq_printf(seq, "%-2d", i);
+ seq_printf(seq, "%#7x\n", result.claimed_tid[i]);
+ }
+
+ if (result.more_flag)
+ seq_printf(seq, "There is more...\n");
+
+ return 0;
+}
+
+/* Generic group F003h - User Table (table) */
+int i2o_seq_show_users(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+ int i;
+
+ typedef struct _i2o_user_table
+ {
+ u16 instance;
+ u16 user_tid;
+ u8 claim_type;
+ u8 reserved1;
+ u16 reserved2;
+ } i2o_user_table;
+
+ struct
+ {
+ u16 result_count;
+ u16 pad;
+ u16 block_size;
+ u8 block_status;
+ u8 error_info_size;
+ u16 row_count;
+ u16 more_flag;
+ i2o_user_table user[64];
+ } *result;
+
+ result = kmalloc(sizeof(*result), GFP_KERNEL);
+ if(!result)
+ return -ENOMEM;
+
+ token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF003, -1, NULL, 0,
+ result, sizeof(*result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token,"0xF003 User Table");
+ goto out;
+ }
+
+ seq_printf(seq, "# Instance UserTid ClaimType\n");
+
+ for(i=0; i < result->row_count; i++)
+ {
+ seq_printf(seq, "%-3d", i);
+ seq_printf(seq, "%#8x ", result->user[i].instance);
+ seq_printf(seq, "%#7x ", result->user[i].user_tid);
+ seq_printf(seq, "%#9x\n", result->user[i].claim_type);
+ }
+
+ if (result->more_flag)
+ seq_printf(seq, "There is more...\n");
+out:
+ kfree(result);
+ return 0;
+}
+
+/* Generic group F005h - Private message extensions (table) (optional) */
+int i2o_seq_show_priv_msgs(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+ int i;
+
+ typedef struct _i2o_private
+ {
+ u16 ext_instance;
+ u16 organization_id;
+ u16 x_function_code;
+ } i2o_private;
+
+ struct
+ {
+ u16 result_count;
+ u16 pad;
+ u16 block_size;
+ u8 block_status;
+ u8 error_info_size;
+ u16 row_count;
+ u16 more_flag;
+ i2o_private extension[64];
+ } result;
+
+ token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF000, -1, NULL, 0,
+ &result, sizeof(result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token,"0xF005 Private Message Extensions (optional)");
+ return 0;
+ }
+
+ seq_printf(seq, "Instance# OrgId FunctionCode\n");
+
+ for(i=0; i < result.row_count; i++)
+ {
+ seq_printf(seq, "%0#9x ", result.extension[i].ext_instance);
+ seq_printf(seq, "%0#6x ", result.extension[i].organization_id);
+ seq_printf(seq, "%0#6x", result.extension[i].x_function_code);
+
+ seq_printf(seq, "\n");
+ }
+
+ if(result.more_flag)
+ seq_printf(seq, "There is more...\n");
+
+ return 0;
+}
+
+
+/* Generic group F006h - Authorized User Table (table) */
+int i2o_seq_show_authorized_users(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+ int i;
+
+ struct
+ {
+ u16 result_count;
+ u16 pad;
+ u16 block_size;
+ u8 block_status;
+ u8 error_info_size;
+ u16 row_count;
+ u16 more_flag;
+ u32 alternate_tid[64];
+ } result;
+
+ token = i2o_parm_table_get(d, I2O_PARAMS_TABLE_GET, 0xF006, -1, NULL, 0,
+ &result, sizeof(result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token,"0xF006 Autohorized User Table");
+ return 0;
+ }
+
+ if (result.row_count)
+ seq_printf(seq, "# AlternateTid\n");
+
+ for(i=0; i < result.row_count; i++)
+ {
+ seq_printf(seq, "%-2d", i);
+ seq_printf(seq, "%#7x ", result.alternate_tid[i]);
+ }
+
+ if (result.more_flag)
+ seq_printf(seq, "There is more...\n");
+
+ return 0;
+}
+
+
+/* Generic group F100h - Device Identity (scalar) */
+int i2o_seq_show_dev_identity(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ static u32 work32[128]; // allow for "stuff" + up to 256 byte (max) serial number
+ // == (allow) 512d bytes (max)
+ static u16 *work16 = (u16*)work32;
+ int token;
+
+ token = i2o_parm_field_get(d, 0xF100, -1, &work32, sizeof(work32));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token, "0xF100 Device Identity");
+ return 0;
+ }
+
+ seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0]));
+ seq_printf(seq, "Owner TID : %0#5x\n", work16[2]);
+ seq_printf(seq, "Parent TID : %0#5x\n", work16[3]);
+ seq_printf(seq, "Vendor info : %s\n", chtostr((u8 *)(work32+2), 16));
+ seq_printf(seq, "Product info : %s\n", chtostr((u8 *)(work32+6), 16));
+ seq_printf(seq, "Description : %s\n", chtostr((u8 *)(work32+10), 16));
+ seq_printf(seq, "Product rev. : %s\n", chtostr((u8 *)(work32+14), 8));
+
+ seq_printf(seq, "Serial number : ");
+ print_serial_number(seq,
+ (u8*)(work32+16),
+ /* allow for SNLen plus
+ * possible trailing '\0'
+ */
+ sizeof(work32)-(16*sizeof(u32))-2
+ );
+ seq_printf(seq, "\n");
+
+ return 0;
+}
+
+
+int i2o_seq_show_dev_name(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+
+ seq_printf(seq, "%s\n", d->device.bus_id);
+
+ return 0;
+}
+
+
+/* Generic group F101h - DDM Identity (scalar) */
+int i2o_seq_show_ddm_identity(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+
+ struct
+ {
+ u16 ddm_tid;
+ u8 module_name[24];
+ u8 module_rev[8];
+ u8 sn_format;
+ u8 serial_number[12];
+ u8 pad[256]; // allow up to 256 byte (max) serial number
+ } result;
+
+ token = i2o_parm_field_get(d, 0xF101, -1, &result, sizeof(result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token, "0xF101 DDM Identity");
+ return 0;
+ }
+
+ seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid);
+ seq_printf(seq, "Module name : %s\n", chtostr(result.module_name, 24));
+ seq_printf(seq, "Module revision : %s\n", chtostr(result.module_rev, 8));
+
+ seq_printf(seq, "Serial number : ");
+ print_serial_number(seq, result.serial_number, sizeof(result)-36);
+ /* allow for SNLen plus possible trailing '\0' */
+
+ seq_printf(seq, "\n");
+
+ return 0;
+}
+
+/* Generic group F102h - User Information (scalar) */
+int i2o_seq_show_uinfo(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+
+ struct
+ {
+ u8 device_name[64];
+ u8 service_name[64];
+ u8 physical_location[64];
+ u8 instance_number[4];
+ } result;
+
+ token = i2o_parm_field_get(d, 0xF102, -1, &result, sizeof(result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token,"0xF102 User Information");
+ return 0;
+ }
+
+ seq_printf(seq, "Device name : %s\n", chtostr(result.device_name, 64));
+ seq_printf(seq, "Service name : %s\n", chtostr(result.service_name, 64));
+ seq_printf(seq, "Physical name : %s\n", chtostr(result.physical_location, 64));
+ seq_printf(seq, "Instance number : %s\n", chtostr(result.instance_number, 4));
+
+ return 0;
+}
+
+/* Generic group F103h - SGL Operating Limits (scalar) */
+int i2o_seq_show_sgl_limits(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ static u32 work32[12];
+ static u16 *work16 = (u16 *)work32;
+ static u8 *work8 = (u8 *)work32;
+ int token;
+
+ token = i2o_parm_field_get(d, 0xF103, -1, &work32, sizeof(work32));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token,"0xF103 SGL Operating Limits");
+ return 0;
+ }
+
+ seq_printf(seq, "SGL chain size : %d\n", work32[0]);
+ seq_printf(seq, "Max SGL chain size : %d\n", work32[1]);
+ seq_printf(seq, "SGL chain size target : %d\n", work32[2]);
+ seq_printf(seq, "SGL frag count : %d\n", work16[6]);
+ seq_printf(seq, "Max SGL frag count : %d\n", work16[7]);
+ seq_printf(seq, "SGL frag count target : %d\n", work16[8]);
+
+/* FIXME
+ if (d->i2oversion == 0x02)
+ {
+*/
+ seq_printf(seq, "SGL data alignment : %d\n", work16[8]);
+ seq_printf(seq, "SGL addr limit : %d\n", work8[20]);
+ seq_printf(seq, "SGL addr sizes supported : ");
+ if (work8[21] & 0x01)
+ seq_printf(seq, "32 bit ");
+ if (work8[21] & 0x02)
+ seq_printf(seq, "64 bit ");
+ if (work8[21] & 0x04)
+ seq_printf(seq, "96 bit ");
+ if (work8[21] & 0x08)
+ seq_printf(seq, "128 bit ");
+ seq_printf(seq, "\n");
+/*
+ }
+*/
+
+ return 0;
+}
+
+/* Generic group F200h - Sensors (scalar) */
+int i2o_seq_show_sensors(struct seq_file *seq, void *v)
+{
+ struct i2o_device *d = (struct i2o_device*)seq->private;
+ int token;
+
+ struct
+ {
+ u16 sensor_instance;
+ u8 component;
+ u16 component_instance;
+ u8 sensor_class;
+ u8 sensor_type;
+ u8 scaling_exponent;
+ u32 actual_reading;
+ u32 minimum_reading;
+ u32 low2lowcat_treshold;
+ u32 lowcat2low_treshold;
+ u32 lowwarn2low_treshold;
+ u32 low2lowwarn_treshold;
+ u32 norm2lowwarn_treshold;
+ u32 lowwarn2norm_treshold;
+ u32 nominal_reading;
+ u32 hiwarn2norm_treshold;
+ u32 norm2hiwarn_treshold;
+ u32 high2hiwarn_treshold;
+ u32 hiwarn2high_treshold;
+ u32 hicat2high_treshold;
+ u32 hi2hicat_treshold;
+ u32 maximum_reading;
+ u8 sensor_state;
+ u16 event_enable;
+ } result;
+
+ token = i2o_parm_field_get(d, 0xF200, -1, &result, sizeof(result));
+
+ if (token < 0) {
+ i2o_report_query_status(seq, token,"0xF200 Sensors (optional)");
+ return 0;
+ }
+
+ seq_printf(seq, "Sensor instance : %d\n", result.sensor_instance);
+
+ seq_printf(seq, "Component : %d = ", result.component);
+ switch (result.component)
+ {
+ case 0: seq_printf(seq, "Other");
+ break;
+ case 1: seq_printf(seq, "Planar logic Board");
+ break;
+ case 2: seq_printf(seq, "CPU");
+ break;
+ case 3: seq_printf(seq, "Chassis");
+ break;
+ case 4: seq_printf(seq, "Power Supply");
+ break;
+ case 5: seq_printf(seq, "Storage");
+ break;
+ case 6: seq_printf(seq, "External");
+ break;
+ }
+ seq_printf(seq,"\n");
+
+ seq_printf(seq, "Component instance : %d\n", result.component_instance);
+ seq_printf(seq, "Sensor class : %s\n",
+ result.sensor_class ? "Analog" : "Digital");
+
+ seq_printf(seq, "Sensor type : %d = ",result.sensor_type);
+ switch (result.sensor_type)
+ {
+ case 0: seq_printf(seq, "Other\n");
+ break;
+ case 1: seq_printf(seq, "Thermal\n");
+ break;
+ case 2: seq_printf(seq, "DC voltage (DC volts)\n");
+ break;
+ case 3: seq_printf(seq, "AC voltage (AC volts)\n");
+ break;
+ case 4: seq_printf(seq, "DC current (DC amps)\n");
+ break;
+ case 5: seq_printf(seq, "AC current (AC volts)\n");
+ break;
+ case 6: seq_printf(seq, "Door open\n");
+ break;
+ case 7: seq_printf(seq, "Fan operational\n");
+ break;
+ }
+
+ seq_printf(seq, "Scaling exponent : %d\n", result.scaling_exponent);
+ seq_printf(seq, "Actual reading : %d\n", result.actual_reading);
+ seq_printf(seq, "Minimum reading : %d\n", result.minimum_reading);
+ seq_printf(seq, "Low2LowCat treshold : %d\n", result.low2lowcat_treshold);
+ seq_printf(seq, "LowCat2Low treshold : %d\n", result.lowcat2low_treshold);
+ seq_printf(seq, "LowWarn2Low treshold : %d\n", result.lowwarn2low_treshold);
+ seq_printf(seq, "Low2LowWarn treshold : %d\n", result.low2lowwarn_treshold);
+ seq_printf(seq, "Norm2LowWarn treshold : %d\n", result.norm2lowwarn_treshold);
+ seq_printf(seq, "LowWarn2Norm treshold : %d\n", result.lowwarn2norm_treshold);
+ seq_printf(seq, "Nominal reading : %d\n", result.nominal_reading);
+ seq_printf(seq, "HiWarn2Norm treshold : %d\n", result.hiwarn2norm_treshold);
+ seq_printf(seq, "Norm2HiWarn treshold : %d\n", result.norm2hiwarn_treshold);
+ seq_printf(seq, "High2HiWarn treshold : %d\n", result.high2hiwarn_treshold);
+ seq_printf(seq, "HiWarn2High treshold : %d\n", result.hiwarn2high_treshold);
+ seq_printf(seq, "HiCat2High treshold : %d\n", result.hicat2high_treshold);
+ seq_printf(seq, "High2HiCat treshold : %d\n", result.hi2hicat_treshold);
+ seq_printf(seq, "Maximum reading : %d\n", result.maximum_reading);
+
+ seq_printf(seq, "Sensor state : %d = ", result.sensor_state);
+ switch (result.sensor_state)
+ {
+ case 0: seq_printf(seq, "Normal\n");
+ break;
+ case 1: seq_printf(seq, "Abnormal\n");
+ break;
+ case 2: seq_printf(seq, "Unknown\n");
+ break;
+ case 3: seq_printf(seq, "Low Catastrophic (LoCat)\n");
+ break;
+ case 4: seq_printf(seq, "Low (Low)\n");
+ break;
+ case 5: seq_printf(seq, "Low Warning (LoWarn)\n");
+ break;
+ case 6: seq_printf(seq, "High Warning (HiWarn)\n");
+ break;
+ case 7: seq_printf(seq, "High (High)\n");
+ break;
+ case 8: seq_printf(seq, "High Catastrophic (HiCat)\n");
+ break;
+ }
+
+ seq_printf(seq, "Event_enable : 0x%02X\n", result.event_enable);
+ seq_printf(seq, " [%s] Operational state change. \n",
+ (result.event_enable & 0x01) ? "+" : "-" );
+ seq_printf(seq, " [%s] Low catastrophic. \n",
+ (result.event_enable & 0x02) ? "+" : "-" );
+ seq_printf(seq, " [%s] Low reading. \n",
+ (result.event_enable & 0x04) ? "+" : "-" );
+ seq_printf(seq, " [%s] Low warning. \n",
+ (result.event_enable & 0x08) ? "+" : "-" );
+ seq_printf(seq, " [%s] Change back to normal from out of range state. \n",
+ (result.event_enable & 0x10) ? "+" : "-" );
+ seq_printf(seq, " [%s] High warning. \n",
+ (result.event_enable & 0x20) ? "+" : "-" );
+ seq_printf(seq, " [%s] High reading. \n",
+ (result.event_enable & 0x40) ? "+" : "-" );
+ seq_printf(seq, " [%s] High catastrophic. \n",
+ (result.event_enable & 0x80) ? "+" : "-" );
+
+ return 0;
+}
+
+/**
+ * i2o_proc_create_entries - Creates proc dir entries
+ * @dir: proc dir entry under which the entries should be placed
+ * @i2o_pe: pointer to the entries which should be added
+ * @data: pointer to I2O controller or device
+ *
+ * Create proc dir entries for a I2O controller or I2O device.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_proc_create_entries(struct proc_dir_entry *dir,
+ i2o_proc_entry *i2o_pe, void *data)
+{
+ struct proc_dir_entry *tmp;
+
+ while(i2o_pe->name) {
+ tmp = create_proc_entry(i2o_pe->name, i2o_pe->mode, dir);
+ if(!tmp)
+ return -1;
+
+ tmp->data = data;
+ tmp->proc_fops = i2o_pe->fops;
+
+ i2o_pe++;
+ }
+
+ return 0;
+}
+
+/**
+ * i2o_proc_subdir_remove - Remove child entries from a proc entry
+ * @dir: proc dir entry from which the childs should be removed
+ *
+ * Iterate over each i2o proc entry under dir and remove it. If the child
+ * also has entries, remove them too.
+ */
+static void i2o_proc_subdir_remove(struct proc_dir_entry *dir)
+{
+ struct proc_dir_entry *pe, *tmp;
+ pe=dir->subdir;
+ while(pe) {
+ tmp = pe->next;
+ i2o_proc_subdir_remove(pe);
+ remove_proc_entry(pe->name, dir);
+ pe = tmp;
+ }
+};
+
+/**
+ * i2o_proc_iop_add - Add an I2O controller to the i2o proc tree
+ * @dir: parent proc dir entry
+ * @c: I2O controller which should be added
+ *
+ * Add the entries to the parent proc dir entry. Also each device is added
+ * to the controllers proc dir entry.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_proc_iop_add(struct proc_dir_entry *dir,struct i2o_controller *c)
+{
+ struct proc_dir_entry *iopdir;
+ struct i2o_device *dev;
+ char buff[10];
+
+ snprintf(buff, 10, "iop%d", c->unit);
+
+ DBG("Adding IOP /proc/i2o/%s\n", buff);
+
+ iopdir = proc_mkdir(buff, dir);
+ if(!iopdir)
+ return -1;
+
+ iopdir->data = c;
+
+ i2o_proc_create_entries(iopdir, i2o_proc_generic_iop_entries, c);
+
+ list_for_each_entry(dev, &c->devices, list)
+ i2o_proc_device_add(iopdir, dev);
+
+ return 0;
+}
+
+/**
+ * i2o_proc_iop_remove - Removes an I2O controller from the i2o proc tree
+ * @dir: parent proc dir entry
+ * @c: I2O controller which should be removed
+ *
+ * Iterate over each i2o proc entry and search controller c. If it is found
+ * remove it from the tree.
+ */
+static void i2o_proc_iop_remove(struct proc_dir_entry *dir,
+ struct i2o_controller *c)
+{
+ struct proc_dir_entry *pe, *tmp;
+
+ pe=dir->subdir;
+ while(pe) {
+ tmp = pe->next;
+ if(pe->data == c) {
+ i2o_proc_subdir_remove(pe);
+ remove_proc_entry(pe->name, dir);
+ }
+ DBG("Removing IOP /proc/i2o/iop%d\n", c->unit);
+ pe = tmp;
+ }
+}
+
+/**
+ * i2o_proc_device_add - Add an I2O device to the proc dir
+ * @dir: proc dir entry to which the device should be added
+ * @dev: I2O device which should be added
+ *
+ * Add an I2O device to the proc dir entry dir and create the entries for
+ * the device depending on the class of the I2O device.
+ */
+static void i2o_proc_device_add(struct proc_dir_entry *dir,
+ struct i2o_device *dev)
+{
+ char buff[10];
+ struct proc_dir_entry *devdir;
+ i2o_proc_entry *i2o_pe = NULL;
+
+ sprintf(buff, "%03x", dev->lct_data.tid);
+
+ DBG("Adding device /proc/i2o/iop%d/%s\n", dev->iop->unit, buff);
+
+ devdir = proc_mkdir(buff, dir);
+ if(!devdir) {
+ printk(KERN_WARNING "i2o: Could not allocate procdir!\n");
+ return;
+ }
+
+ devdir->data = dev;
+
+ i2o_proc_create_entries(devdir, generic_dev_entries, dev);
+
+ /* Inform core that we want updates about this device's status */
+ switch(dev->lct_data.class_id) {
+ case I2O_CLASS_SCSI_PERIPHERAL:
+ case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+ i2o_pe = rbs_dev_entries;
+ break;
+ default:
+ break;
+ }
+ if(i2o_pe)
+ i2o_proc_create_entries(devdir, i2o_pe, dev);
+}
+
+/**
+ * i2o_proc_fs_create - Create the i2o proc fs.
+ *
+ * Iterate over each I2O controller and create the entries for it.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_proc_fs_create(void)
+{
+ struct i2o_controller *c;
+
+ i2o_proc_dir_root = proc_mkdir("i2o", 0);
+ if(!i2o_proc_dir_root)
+ return -1;
+
+ i2o_proc_dir_root->owner = THIS_MODULE;
+
+ list_for_each_entry(c, &i2o_controllers, list)
+ i2o_proc_iop_add(i2o_proc_dir_root, c);
+
+ return 0;
+};
+
+/**
+ * i2o_proc_fs_destroy - Cleanup the all i2o proc entries
+ *
+ * Iterate over each I2O controller and remove the entries for it.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __exit i2o_proc_fs_destroy(void)
+{
+ struct i2o_controller *c;
+
+ list_for_each_entry(c, &i2o_controllers, list)
+ i2o_proc_iop_remove(i2o_proc_dir_root, c);
+
+ remove_proc_entry("i2o", 0);
+
+ return 0;
+};
+
+/**
+ * i2o_proc_init - Init function for procfs
+ *
+ * Registers Proc OSM and creates procfs entries.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_proc_init(void)
+{
+ int rc;
+
+ rc = i2o_driver_register(&i2o_proc_driver);
+ if(rc)
+ return rc;
+
+ rc = i2o_proc_fs_create();
+ if(rc) {
+ i2o_driver_unregister(&i2o_proc_driver);
+ return rc;
+ }
+
+ return 0;
+};
+
+/**
+ * i2o_proc_exit - Exit function for procfs
+ *
+ * Unregisters Proc OSM and removes procfs entries.
+ */
+static void __exit i2o_proc_exit(void)
+{
+ i2o_driver_unregister(&i2o_proc_driver);
+ i2o_proc_fs_destroy();
+};
+
+MODULE_AUTHOR("Deepak Saxena");
+MODULE_DESCRIPTION("I2O procfs Handler");
+MODULE_LICENSE("GPL");
+
+module_init(i2o_proc_init);
+module_exit(i2o_proc_exit);
diff -L drivers/message/i2o/README -puN drivers/message/i2o/README~i2o-build_99 /dev/null
--- 25/drivers/message/i2o/README
+++ /dev/null Thu Apr 11 07:25:15 2002
@@ -1,98 +0,0 @@
-
- Linux I2O Support (c) Copyright 1999 Red Hat Software
- and others.
-
- This program is free software; you can redistribute it and/or
- modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version
- 2 of the License, or (at your option) any later version.
-
-AUTHORS (so far)
-
-Alan Cox, Building Number Three Ltd.
- Core code, SCSI and Block OSMs
-
-Steve Ralston, LSI Logic Corp.
- Debugging SCSI and Block OSM
-
-Deepak Saxena, Intel Corp.
- Various core/block extensions
- /proc interface, bug fixes
- Ioctl interfaces for control
- Debugging LAN OSM
-
-Philip Rumpf
- Fixed assorted dumb SMP locking bugs
-
-Juha Sievanen, University of Helsinki Finland
- LAN OSM code
- /proc interface to LAN class
- Bug fixes
- Core code extensions
-
-Auvo H�kkinen, University of Helsinki Finland
- LAN OSM code
- /Proc interface to LAN class
- Bug fixes
- Core code extensions
-
-Taneli V�h�kangas, University of Helsinki Finland
- Fixes to i2o_config
-
-CREDITS
-
- This work was made possible by
-
-Red Hat Software
- Funding for the Building #3 part of the project
-
-Symbios Logic (Now LSI)
- Host adapters, hints, known to work platforms when I hit
- compatibility problems
-
-BoxHill Corporation
- Loan of initial FibreChannel disk array used for development work.
-
-European Comission
- Funding the work done by the University of Helsinki
-
-SysKonnect
- Loan of FDDI and Gigabit Ethernet cards
-
-ASUSTeK
- Loan of I2O motherboard
-
-STATUS:
-
-o The core setup works within limits.
-o The scsi layer seems to almost work.
- I'm still chasing down the hang bug.
-o The block OSM is mostly functional
-o LAN OSM works with FDDI and Ethernet cards.
-
-TO DO:
-
-General:
-o Provide hidden address space if asked
-o Long term message flow control
-o PCI IOP's without interrupts are not supported yet
-o Push FAIL handling into the core
-o DDM control interfaces for module load etc
-o Add I2O 2.0 support (Deffered to 2.5 kernel)
-
-Block:
-o Multiple major numbers
-o Read ahead and cache handling stuff. Talk to Ingo and people
-o Power management
-o Finish Media changers
-
-SCSI:
-o Find the right way to associate drives/luns/busses
-
-Lan:
-o Performance tuning
-o Test Fibre Channel code
-
-Tape:
-o Anyone seen anything implementing this ?
- (D.S: Will attempt to do so if spare cycles permit)
diff -L drivers/message/i2o/README.ioctl -puN drivers/message/i2o/README.ioctl~i2o-build_99 /dev/null
--- 25/drivers/message/i2o/README.ioctl
+++ /dev/null Thu Apr 11 07:25:15 2002
@@ -1,394 +0,0 @@
-
-Linux I2O User Space Interface
-rev 0.3 - 04/20/99
-
-=============================================================================
-Originally written by Deepak Saxena(deepak@plexity.net)
-Currently maintained by Deepak Saxena(deepak@plexity.net)
-=============================================================================
-
-I. Introduction
-
-The Linux I2O subsystem provides a set of ioctl() commands that can be
-utilized by user space applications to communicate with IOPs and devices
-on individual IOPs. This document defines the specific ioctl() commands
-that are available to the user and provides examples of their uses.
-
-This document assumes the reader is familiar with or has access to the
-I2O specification as no I2O message parameters are outlined. For information
-on the specification, see http://www.i2osig.org
-
-This document and the I2O user space interface are currently maintained
-by Deepak Saxena. Please send all comments, errata, and bug fixes to
-deepak@csociety.purdue.edu
-
-II. IOP Access
-
-Access to the I2O subsystem is provided through the device file named
-/dev/i2o/ctl. This file is a character file with major number 10 and minor
-number 166. It can be created through the following command:
-
- mknod /dev/i2o/ctl c 10 166
-
-III. Determining the IOP Count
-
- SYNOPSIS
-
- ioctl(fd, I2OGETIOPS, int *count);
-
- u8 count[MAX_I2O_CONTROLLERS];
-
- DESCRIPTION
-
- This function returns the system's active IOP table. count should
- point to a buffer containing MAX_I2O_CONTROLLERS entries. Upon
- returning, each entry will contain a non-zero value if the given
- IOP unit is active, and NULL if it is inactive or non-existent.
-
- RETURN VALUE.
-
- Returns 0 if no errors occur, and -1 otherwise. If an error occurs,
- errno is set appropriately:
-
- EFAULT Invalid user space pointer was passed
-
-IV. Getting Hardware Resource Table
-
- SYNOPSIS
-
- ioctl(fd, I2OHRTGET, struct i2o_cmd_hrt *hrt);
-
- struct i2o_cmd_hrtlct
- {
- u32 iop; /* IOP unit number */
- void *resbuf; /* Buffer for result */
- u32 *reslen; /* Buffer length in bytes */
- };
-
- DESCRIPTION
-
- This function returns the Hardware Resource Table of the IOP specified
- by hrt->iop in the buffer pointed to by hrt->resbuf. The actual size of
- the data is written into *(hrt->reslen).
-
- RETURNS
-
- This function returns 0 if no errors occur. If an error occurs, -1
- is returned and errno is set appropriately:
-
- EFAULT Invalid user space pointer was passed
- ENXIO Invalid IOP number
- ENOBUFS Buffer not large enough. If this occurs, the required
- buffer length is written into *(hrt->reslen)
-
-V. Getting Logical Configuration Table
-
- SYNOPSIS
-
- ioctl(fd, I2OLCTGET, struct i2o_cmd_lct *lct);
-
- struct i2o_cmd_hrtlct
- {
- u32 iop; /* IOP unit number */
- void *resbuf; /* Buffer for result */
- u32 *reslen; /* Buffer length in bytes */
- };
-
- DESCRIPTION
-
- This function returns the Logical Configuration Table of the IOP specified
- by lct->iop in the buffer pointed to by lct->resbuf. The actual size of
- the data is written into *(lct->reslen).
-
- RETURNS
-
- This function returns 0 if no errors occur. If an error occurs, -1
- is returned and errno is set appropriately:
-
- EFAULT Invalid user space pointer was passed
- ENXIO Invalid IOP number
- ENOBUFS Buffer not large enough. If this occurs, the required
- buffer length is written into *(lct->reslen)
-
-VI. Settting Parameters
-
- SYNOPSIS
-
- ioctl(fd, I2OPARMSET, struct i2o_parm_setget *ops);
-
- struct i2o_cmd_psetget
- {
- u32 iop; /* IOP unit number */
- u32 tid; /* Target device TID */
- void *opbuf; /* Operation List buffer */
- u32 oplen; /* Operation List buffer length in bytes */
- void *resbuf; /* Result List buffer */
- u32 *reslen; /* Result List buffer length in bytes */
- };
-
- DESCRIPTION
-
- This function posts a UtilParamsSet message to the device identified
- by ops->iop and ops->tid. The operation list for the message is
- sent through the ops->opbuf buffer, and the result list is written
- into the buffer pointed to by ops->resbuf. The number of bytes
- written is placed into *(ops->reslen).
-
- RETURNS
-
- The return value is the size in bytes of the data written into
- ops->resbuf if no errors occur. If an error occurs, -1 is returned
- and errno is set appropriatly:
-
- EFAULT Invalid user space pointer was passed
- ENXIO Invalid IOP number
- ENOBUFS Buffer not large enough. If this occurs, the required
- buffer length is written into *(ops->reslen)
- ETIMEDOUT Timeout waiting for reply message
- ENOMEM Kernel memory allocation error
-
- A return value of 0 does not mean that the value was actually
- changed properly on the IOP. The user should check the result
- list to determine the specific status of the transaction.
-
-VII. Getting Parameters
-
- SYNOPSIS
-
- ioctl(fd, I2OPARMGET, struct i2o_parm_setget *ops);
-
- struct i2o_parm_setget
- {
- u32 iop; /* IOP unit number */
- u32 tid; /* Target device TID */
- void *opbuf; /* Operation List buffer */
- u32 oplen; /* Operation List buffer length in bytes */
- void *resbuf; /* Result List buffer */
- u32 *reslen; /* Result List buffer length in bytes */
- };
-
- DESCRIPTION
-
- This function posts a UtilParamsGet message to the device identified
- by ops->iop and ops->tid. The operation list for the message is
- sent through the ops->opbuf buffer, and the result list is written
- into the buffer pointed to by ops->resbuf. The actual size of data
- written is placed into *(ops->reslen).
-
- RETURNS
-
- EFAULT Invalid user space pointer was passed
- ENXIO Invalid IOP number
- ENOBUFS Buffer not large enough. If this occurs, the required
- buffer length is written into *(ops->reslen)
- ETIMEDOUT Timeout waiting for reply message
- ENOMEM Kernel memory allocation error
-
- A return value of 0 does not mean that the value was actually
- properly retreived. The user should check the result list
- to determine the specific status of the transaction.
-
-VIII. Downloading Software
-
- SYNOPSIS
-
- ioctl(fd, I2OSWDL, struct i2o_sw_xfer *sw);
-
- struct i2o_sw_xfer
- {
- u32 iop; /* IOP unit number */
- u8 flags; /* DownloadFlags field */
- u8 sw_type; /* Software type */
- u32 sw_id; /* Software ID */
- void *buf; /* Pointer to software buffer */
- u32 *swlen; /* Length of software buffer */
- u32 *maxfrag; /* Number of fragments */
- u32 *curfrag; /* Current fragment number */
- };
-
- DESCRIPTION
-
- This function downloads a software fragment pointed by sw->buf
- to the iop identified by sw->iop. The DownloadFlags, SwID, SwType
- and SwSize fields of the ExecSwDownload message are filled in with
- the values of sw->flags, sw->sw_id, sw->sw_type and *(sw->swlen).
-
- The fragments _must_ be sent in order and be 8K in size. The last
- fragment _may_ be shorter, however. The kernel will compute its
- size based on information in the sw->swlen field.
-
- Please note that SW transfers can take a long time.
-
- RETURNS
-
- This function returns 0 no errors occur. If an error occurs, -1
- is returned and errno is set appropriatly:
-
- EFAULT Invalid user space pointer was passed
- ENXIO Invalid IOP number
- ETIMEDOUT Timeout waiting for reply message
- ENOMEM Kernel memory allocation error
-
-IX. Uploading Software
-
- SYNOPSIS
-
- ioctl(fd, I2OSWUL, struct i2o_sw_xfer *sw);
-
- struct i2o_sw_xfer
- {
- u32 iop; /* IOP unit number */
- u8 flags; /* UploadFlags */
- u8 sw_type; /* Software type */
- u32 sw_id; /* Software ID */
- void *buf; /* Pointer to software buffer */
- u32 *swlen; /* Length of software buffer */
- u32 *maxfrag; /* Number of fragments */
- u32 *curfrag; /* Current fragment number */
- };
-
- DESCRIPTION
-
- This function uploads a software fragment from the IOP identified
- by sw->iop, sw->sw_type, sw->sw_id and optionally sw->swlen fields.
- The UploadFlags, SwID, SwType and SwSize fields of the ExecSwUpload
- message are filled in with the values of sw->flags, sw->sw_id,
- sw->sw_type and *(sw->swlen).
-
- The fragments _must_ be requested in order and be 8K in size. The
- user is responsible for allocating memory pointed by sw->buf. The
- last fragment _may_ be shorter.
-
- Please note that SW transfers can take a long time.
-
- RETURNS
-
- This function returns 0 if no errors occur. If an error occurs, -1
- is returned and errno is set appropriatly:
-
- EFAULT Invalid user space pointer was passed
- ENXIO Invalid IOP number
- ETIMEDOUT Timeout waiting for reply message
- ENOMEM Kernel memory allocation error
-
-X. Removing Software
-
- SYNOPSIS
-
- ioctl(fd, I2OSWDEL, struct i2o_sw_xfer *sw);
-
- struct i2o_sw_xfer
- {
- u32 iop; /* IOP unit number */
- u8 flags; /* RemoveFlags */
- u8 sw_type; /* Software type */
- u32 sw_id; /* Software ID */
- void *buf; /* Unused */
- u32 *swlen; /* Length of the software data */
- u32 *maxfrag; /* Unused */
- u32 *curfrag; /* Unused */
- };
-
- DESCRIPTION
-
- This function removes software from the IOP identified by sw->iop.
- The RemoveFlags, SwID, SwType and SwSize fields of the ExecSwRemove message
- are filled in with the values of sw->flags, sw->sw_id, sw->sw_type and
- *(sw->swlen). Give zero in *(sw->len) if the value is unknown. IOP uses
- *(sw->swlen) value to verify correct identication of the module to remove.
- The actual size of the module is written into *(sw->swlen).
-
- RETURNS
-
- This function returns 0 if no errors occur. If an error occurs, -1
- is returned and errno is set appropriatly:
-
- EFAULT Invalid user space pointer was passed
- ENXIO Invalid IOP number
- ETIMEDOUT Timeout waiting for reply message
- ENOMEM Kernel memory allocation error
-
-X. Validating Configuration
-
- SYNOPSIS
-
- ioctl(fd, I2OVALIDATE, int *iop);
- u32 iop;
-
- DESCRIPTION
-
- This function posts an ExecConfigValidate message to the controller
- identified by iop. This message indicates that the current
- configuration is accepted. The iop changes the status of suspect drivers
- to valid and may delete old drivers from its store.
-
- RETURNS
-
- This function returns 0 if no erro occur. If an error occurs, -1 is
- returned and errno is set appropriatly:
-
- ETIMEDOUT Timeout waiting for reply message
- ENXIO Invalid IOP number
-
-XI. Configuration Dialog
-
- SYNOPSIS
-
- ioctl(fd, I2OHTML, struct i2o_html *htquery);
- struct i2o_html
- {
- u32 iop; /* IOP unit number */
- u32 tid; /* Target device ID */
- u32 page; /* HTML page */
- void *resbuf; /* Buffer for reply HTML page */
- u32 *reslen; /* Length in bytes of reply buffer */
- void *qbuf; /* Pointer to HTTP query string */
- u32 qlen; /* Length in bytes of query string buffer */
- };
-
- DESCRIPTION
-
- This function posts an UtilConfigDialog message to the device identified
- by htquery->iop and htquery->tid. The requested HTML page number is
- provided by the htquery->page field, and the resultant data is stored
- in the buffer pointed to by htquery->resbuf. If there is an HTTP query
- string that is to be sent to the device, it should be sent in the buffer
- pointed to by htquery->qbuf. If there is no query string, this field
- should be set to NULL. The actual size of the reply received is written
- into *(htquery->reslen).
-
- RETURNS
-
- This function returns 0 if no error occur. If an error occurs, -1
- is returned and errno is set appropriatly:
-
- EFAULT Invalid user space pointer was passed
- ENXIO Invalid IOP number
- ENOBUFS Buffer not large enough. If this occurs, the required
- buffer length is written into *(ops->reslen)
- ETIMEDOUT Timeout waiting for reply message
- ENOMEM Kernel memory allocation error
-
-XII. Events
-
- In the process of determining this. Current idea is to have use
- the select() interface to allow user apps to periodically poll
- the /dev/i2o/ctl device for events. When select() notifies the user
- that an event is available, the user would call read() to retrieve
- a list of all the events that are pending for the specific device.
-
-=============================================================================
-Revision History
-=============================================================================
-
-Rev 0.1 - 04/01/99
-- Initial revision
-
-Rev 0.2 - 04/06/99
-- Changed return values to match UNIX ioctl() standard. Only return values
- are 0 and -1. All errors are reported through errno.
-- Added summary of proposed possible event interfaces
-
-Rev 0.3 - 04/20/99
-- Changed all ioctls() to use pointers to user data instead of actual data
-- Updated error values to match the code
diff -puN /dev/null drivers/message/i2o/scsi-osm.c
--- /dev/null Thu Apr 11 07:25:15 2002
+++ 25-akpm/drivers/message/i2o/scsi-osm.c Tue Jul 27 14:06:32 2004
@@ -0,0 +1,1012 @@
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * For the avoidance of doubt the "preferred form" of this code is one which
+ * is in an open non patent encumbered format. Where cryptographic key signing
+ * forms part of the process of creating an executable the information
+ * including keys needed to generate an equivalently functional executable
+ * are deemed to be part of the source code.
+ *
+ * Complications for I2O scsi
+ *
+ * o Each (bus,lun) is a logical device in I2O. We keep a map
+ * table. We spoof failed selection for unmapped units
+ * o Request sense buffers can come back for free.
+ * o Scatter gather is a bit dynamic. We have to investigate at
+ * setup time.
+ * o Some of our resources are dynamically shared. The i2o core
+ * needs a message reservation protocol to avoid swap v net
+ * deadlocking. We need to back off queue requests.
+ *
+ * In general the firmware wants to help. Where its help isn't performance
+ * useful we just ignore the aid. Its not worth the code in truth.
+ *
+ * Fixes/additions:
+ * Steve Ralston:
+ * Scatter gather now works
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Minor fixes for 2.6.
+ *
+ * To Do:
+ * 64bit cleanups
+ * Fix the resource management problems.
+ */
+
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/jiffies.h>
+#include <linux/interrupt.h>
+#include <linux/timer.h>
+#include <linux/delay.h>
+#include <linux/proc_fs.h>
+#include <linux/prefetch.h>
+#include <linux/pci.h>
+#include <asm/dma.h>
+#include <asm/system.h>
+#include <asm/io.h>
+#include <asm/atomic.h>
+#include <linux/blkdev.h>
+#include <linux/i2o.h>
+#include "scsi/scsi.h"
+#include "scsi/scsi_host.h"
+#include "scsi/scsi_device.h"
+#include "scsi/scsi_cmnd.h"
+
+
+
+#define VERSION_STRING "Version 0.1.2"
+
+#undef DEBUG
+//#define DEBUG 1
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+
+static int i2o_scsi_max_id = 16;
+static int i2o_scsi_max_lun = 8;
+
+static LIST_HEAD(i2o_scsi_hosts);
+
+struct i2o_scsi_host {
+ struct list_head list; /* node in in i2o_scsi_hosts */
+ struct Scsi_Host *scsi_host; /* pointer to the SCSI host */
+ struct i2o_controller *iop; /* pointer to the I2O controller */
+ struct i2o_device *channel[]; /* channel->i2o_dev mapping table */
+};
+
+/*
+ * This is only needed, because we can only set the hostdata after the device is
+ * added to the scsi core. So we need this little workaround.
+ */
+static DECLARE_MUTEX(i2o_scsi_probe_lock);
+static struct i2o_device *i2o_scsi_probe_dev = NULL;
+
+static int i2o_scsi_slave_alloc(struct scsi_device *sdp) {
+ sdp->hostdata = i2o_scsi_probe_dev;
+ return 0;
+};
+
+static int i2o_scsi_probe(struct device *);
+static int i2o_scsi_queuecommand(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *));
+static struct i2o_scsi_host *i2o_scsi_get_host(struct i2o_controller *c);
+static int i2o_scsi_remove(struct device *dev);
+static int i2o_scsi_reply(struct i2o_controller *c, u32 m,
+ struct i2o_message *msg);
+
+#define I2O_SCSI_CAN_QUEUE 4
+
+/* SCSI OSM class handling definition */
+static struct i2o_class_id i2o_scsi_class_id[] = {
+ { I2O_CLASS_SCSI_PERIPHERAL },
+ { I2O_CLASS_END }
+};
+
+/* SCSI OSM driver struct */
+static struct i2o_driver i2o_scsi_driver = {
+ .name = "scsi-osm",
+ .reply = i2o_scsi_reply,
+ .classes = i2o_scsi_class_id,
+ .driver.probe = i2o_scsi_probe,
+ .driver.remove = i2o_scsi_remove
+};
+
+/**
+ * i2o_scsi_remove - Remove I2O device from SCSI core
+ * @dev: device which should be removed
+ *
+ * Removes the I2O device from the SCSI core again.
+ *
+ * Returns 0 on success.
+ */
+static int i2o_scsi_remove(struct device *dev)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+ struct i2o_controller *c = i2o_dev->iop;
+ struct i2o_scsi_host *i2o_shost;
+ struct scsi_device *scsi_dev;
+
+ i2o_shost = i2o_scsi_get_host(c);
+
+ shost_for_each_device(scsi_dev, i2o_shost->scsi_host)
+ if(scsi_dev->hostdata == i2o_dev) {
+ scsi_remove_device(scsi_dev);
+ scsi_device_put(scsi_dev);
+ break;
+ }
+
+ return 0;
+};
+
+/**
+ * i2o_scsi_probe - verify if dev is a I2O SCSI device and install it
+ * @dev: device to verify if it is a I2O SCSI device
+ *
+ * Retrieve channel, id and lun for I2O device. If everthing goes well
+ * register the I2O device as SCSI device on the I2O SCSI controller.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_scsi_probe(struct device *dev)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+ struct i2o_controller *c = i2o_dev->iop;
+ struct i2o_scsi_host *i2o_shost;
+ struct Scsi_Host *scsi_host;
+ struct i2o_device *parent;
+ struct scsi_device *scsi_dev;
+ u32 id;
+ u64 lun;
+ int channel = -1;
+ int i;
+
+ i2o_shost = i2o_scsi_get_host(c);
+ if(IS_ERR(i2o_shost))
+ return PTR_ERR(i2o_shost);
+
+ scsi_host = i2o_shost->scsi_host;
+
+ if(i2o_parm_field_get(i2o_dev, 0, 3, &id, 4) < 0)
+ return -EFAULT;
+
+ if(id >= scsi_host->max_id) {
+ printk(KERN_WARNING "scsi-osm: SCSI device id (%d) >= max_id "
+ "of I2O host (%d)", id, scsi_host->max_id);
+ return -EFAULT;
+ }
+
+ if(i2o_parm_field_get(i2o_dev, 0, 4, &lun, 8) < 0)
+ return -EFAULT;
+ if(lun >= scsi_host->max_lun) {
+ printk(KERN_WARNING "scsi-osm: SCSI device id (%d) >= max_lun "
+ "of I2O host (%d)", (unsigned int)lun,
+ scsi_host->max_lun);
+ return -EFAULT;
+ }
+
+ parent = i2o_iop_find_device(c, i2o_dev->lct_data.parent_tid);
+ if(!parent) {
+ printk(KERN_WARNING "scsi-osm: can not find parent of device "
+ "%03x\n", i2o_dev->lct_data.tid);
+ return -EFAULT;
+ }
+
+ for(i = 0; i <= i2o_shost->scsi_host->max_channel; i ++)
+ if(i2o_shost->channel[i] == parent)
+ channel = i;
+
+ if(channel == -1) {
+ printk(KERN_WARNING "scsi-osm: can not find channel of device "
+ "%03x\n", i2o_dev->lct_data.tid);
+ return -EFAULT;
+ }
+
+ down_interruptible(&i2o_scsi_probe_lock);
+ i2o_scsi_probe_dev = i2o_dev;
+ scsi_dev = scsi_add_device(i2o_shost->scsi_host, channel, id, lun);
+ i2o_scsi_probe_dev = NULL;
+ up(&i2o_scsi_probe_lock);
+
+ if(!scsi_dev) {
+ printk(KERN_WARNING "scsi-osm: can not add SCSI device "
+ "%03x\n", i2o_dev->lct_data.tid);
+ return -EFAULT;
+ }
+
+ DBG("Added new SCSI device %03x (cannel: %d, id: %d, lun: %d)\n",
+ i2o_dev->lct_data.tid, channel, id, (unsigned int)lun);
+
+ return 0;
+};
+
+static const char *i2o_scsi_info(struct Scsi_Host *SChost)
+{
+ struct i2o_scsi_host *hostdata;
+ hostdata = (struct i2o_scsi_host *)SChost->hostdata;
+ return hostdata->iop->name;
+}
+
+#if 0
+/**
+ * i2o_retry_run - retry on timeout
+ * @f: unused
+ *
+ * Retry congested frames. This actually needs pushing down into
+ * i2o core. We should only bother the OSM with this when we can't
+ * queue and retry the frame. Or perhaps we should call the OSM
+ * and its default handler should be this in the core, and this
+ * call a 2nd "I give up" handler in the OSM ?
+ */
+
+static void i2o_retry_run(unsigned long f)
+{
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&retry_lock, flags);
+ for(i=0;i<retry_ct;i++)
+ i2o_post_message(retry_ctrl[i], virt_to_bus(retry[i]));
+ retry_ct=0;
+ spin_unlock_irqrestore(&retry_lock, flags);
+}
+
+/**
+ * flush_pending - empty the retry queue
+ *
+ * Turn each of the pending commands into a NOP and post it back
+ * to the controller to clear it.
+ */
+
+static void flush_pending(void)
+{
+ int i;
+ unsigned long flags;
+
+ spin_lock_irqsave(&retry_lock, flags);
+ for(i=0;i<retry_ct;i++)
+ {
+ retry[i][0]&=~0xFFFFFF;
+ retry[i][0]|=I2O_CMD_UTIL_NOP<<24;
+ i2o_post_message(retry_ctrl[i],virt_to_bus(retry[i]));
+ }
+ retry_ct=0;
+ spin_unlock_irqrestore(&retry_lock, flags);
+}
+#endif
+
+/**
+ * i2o_scsi_reply - SCSI OSM message reply handler
+ * @c: controller issuing the reply
+ * @m: message id for flushing
+ * @msg: the message from the controller
+ *
+ * Process reply messages (interrupts in normal scsi controller think).
+ * We can get a variety of messages to process. The normal path is
+ * scsi command completions. We must also deal with IOP failures,
+ * the reply to a bus reset and the reply to a LUN query.
+ *
+ * Returns 0 on success and if the reply should not be flushed or > 0
+ * on success and if the reply should be flushed. Returns negative error
+ * code on failure and if the reply should be flushed.
+ */
+static int i2o_scsi_reply(struct i2o_controller *c, u32 m,
+ struct i2o_message *msg)
+{
+ struct scsi_cmnd *cmd;
+ struct device *dev;
+ u8 as,ds,st;
+
+ cmd = i2o_cntxt_list_get(c, readl(&msg->tcntxt));
+
+ if(msg->head[0] & (1<<13)) {
+ struct i2o_message *pmsg; /* preserved message */
+ u32 pm;
+
+ pm = readl(&msg->body[3]);
+
+ pmsg = c->in_queue.virt + pm;
+
+ printk("IOP fail.\n");
+ printk("From %d To %d Cmd %d.\n",
+ (msg->head[1]>>12)&0xFFF,
+ msg->head[1]&0xFFF,
+ msg->head[1]>>24);
+ printk("Failure Code %d.\n", msg->body[0]>>24);
+ if(msg->body[0]&(1<<16))
+ printk("Format error.\n");
+ if(msg->body[0]&(1<<17))
+ printk("Path error.\n");
+ if(msg->body[0]&(1<<18))
+ printk("Path State.\n");
+ if(msg->body[0]&(1<<18))
+ printk("Congestion.\n");
+
+ printk("Failing message is %p.\n", pmsg);
+
+ cmd = i2o_cntxt_list_get(c, readl(&pmsg->tcntxt));
+ if(!cmd)
+ return 1;
+
+ printk("Aborted %ld\n", cmd->serial_number);
+ cmd->result = DID_ERROR << 16;
+ cmd->scsi_done(cmd);
+
+ /* Now flush the message by making it a NOP */
+ i2o_msg_nop(c, pm);
+
+ return 1;
+ }
+
+ /*
+ * Low byte is device status, next is adapter status,
+ * (then one byte reserved), then request status.
+ */
+ ds=(u8)readl(&msg->body[0]);
+ as=(u8)(readl(&msg->body[0])>>8);
+ st=(u8)(readl(&msg->body[0])>>24);
+
+
+ /*
+ * Is this a control request coming back - eg an abort ?
+ */
+
+ if(!cmd) {
+ if(st)
+ printk(KERN_WARNING "SCSI abort: %08X", readl(&msg->body[0]));
+ printk(KERN_INFO "SCSI abort completed.\n");
+ return -EFAULT;
+ }
+
+ DBG("Completed %ld\n", cmd->serial_number);
+
+ if(st) {
+ u32 count, error;
+ /* An error has occurred */
+
+ switch(st) {
+ case 0x06:
+ count = readl(&msg->body[1]);
+ if(count < cmd->underflow) {
+ int i;
+ printk(KERN_ERR "SCSI: underflow 0x%08X 0x%08X"
+ "\n", count, cmd->underflow);
+ printk("Cmd: ");
+ for(i=0;i<15;i++)
+ printk("%02X ", cmd->cmnd[i]);
+ printk(".\n");
+ cmd->result = (DID_ERROR << 16);
+ }
+ break;
+
+ default:
+ error = readl(&msg->body[0]);
+
+ printk(KERN_ERR "scsi-osm: SCSI error %08x\n", error);
+
+ if((error & 0xff) == 0x02 /*CHECK_CONDITION*/) {
+ int i;
+ u32 len = sizeof(cmd->sense_buffer);
+ len = (len > 40) ? 40 : len;
+ // Copy over the sense data
+ memcpy(cmd->sense_buffer, (void*)&msg->body[3],
+ len);
+ for(i = 0; i <= len; i++)
+ printk(KERN_INFO "%02x\n", cmd->sense_buffer[i]);
+ if(cmd->sense_buffer[0] == 0x70 &&
+ cmd->sense_buffer[2] == DATA_PROTECT ){
+ /* This is to handle an array failed */
+ cmd->result = (DID_TIME_OUT << 16);
+ printk(KERN_WARNING"%s: SCSI Data "
+ "Protect-Device (%d,%d,%d) "
+ "hba_status=0x%x, dev_status="
+ "0x%x, cmd=0x%x\n", c->name,
+ (u32)cmd->device->channel,
+ (u32)cmd->device->id,
+ (u32)cmd->device->lun,
+ (error >> 8) & 0xff,
+ error & 0xff, cmd->cmnd[0]);
+ } else
+ cmd->result = (DID_ERROR << 16);
+
+ break;
+ }
+
+ switch(as) {
+ case 0x0E:
+ /* SCSI Reset */
+ cmd->result = DID_RESET << 16;
+ break;
+
+ case 0x0F:
+ cmd->result = DID_PARITY << 16;
+ break;
+
+ default:
+ cmd->result = DID_ERROR << 16;
+ break;
+ }
+
+ break;
+ }
+
+ cmd->scsi_done(cmd);
+ return 1;
+ }
+
+ cmd->result = DID_OK << 16 | ds;
+
+ cmd->scsi_done(cmd);
+
+ dev = &c->pdev->dev;
+ if (cmd->use_sg)
+ dma_unmap_sg(dev, (struct scatterlist *)cmd->buffer,
+ cmd->use_sg, cmd->sc_data_direction);
+ else if (cmd->request_bufflen)
+ dma_unmap_single(dev, (dma_addr_t)((long)cmd->SCp.ptr),
+ cmd->request_bufflen, cmd->sc_data_direction);
+
+ return 1;
+}
+
+/**
+ * i2o_scsi_queuecommand - queue a SCSI command
+ * @SCpnt: scsi command pointer
+ * @done: callback for completion
+ *
+ * Issue a scsi command asynchronously. Return 0 on success or 1 if
+ * we hit an error (normally message queue congestion). The only
+ * minor complication here is that I2O deals with the device addressing
+ * so we have to map the bus/dev/lun back to an I2O handle as well
+ * as faking absent devices ourself.
+ *
+ * Locks: takes the controller lock on error path only
+ */
+
+static int i2o_scsi_queuecommand(struct scsi_cmnd * SCpnt,
+ void (*done) (struct scsi_cmnd *))
+{
+ struct i2o_controller *c;
+ struct Scsi_Host *host;
+ struct i2o_device *i2o_dev;
+ struct device *dev;
+ int tid;
+ struct i2o_message *msg;
+ u32 m;
+ u32 scsi_flags, sg_flags;
+ u32 *mptr, *lenptr;
+ u32 len, reqlen;
+ int i;
+
+ /*
+ * Do the incoming paperwork
+ */
+
+ i2o_dev = SCpnt->device->hostdata;
+ host = SCpnt->device->host;
+ c = i2o_dev->iop;
+ dev = &c->pdev->dev;
+
+ SCpnt->scsi_done = done;
+
+ if(unlikely(!i2o_dev)) {
+ printk(KERN_WARNING "scsi-osm: no I2O device in request\n");
+ SCpnt->result = DID_NO_CONNECT << 16;
+ done(SCpnt);
+ return 0;
+ }
+
+ tid = i2o_dev->lct_data.tid;
+
+ DBG("qcmd: Tid = %03x\n", tid);
+ DBG("Real scsi messages.\n");
+
+ /*
+ * Obtain an I2O message. If there are none free then
+ * throw it back to the scsi layer
+ */
+
+ m = i2o_msg_get_wait(c, &msg, I2O_TIMEOUT_MESSAGE_GET);
+ if(m==I2O_QUEUE_EMPTY)
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+ /*
+ * Put together a scsi execscb message
+ */
+
+ len = SCpnt->request_bufflen;
+
+ switch(SCpnt->sc_data_direction) {
+ case PCI_DMA_NONE:
+ scsi_flags = 0x00000000; // DATA NO XFER
+ sg_flags = 0x00000000;
+ break;
+
+ case PCI_DMA_TODEVICE:
+ scsi_flags = 0x80000000; // DATA OUT (iop-->dev)
+ sg_flags = 0x14000000;
+ break;
+
+ case PCI_DMA_FROMDEVICE:
+ scsi_flags = 0x40000000; // DATA IN (iop<--dev)
+ sg_flags = 0x10000000;
+ break;
+
+ default:
+ /* Unknown - kill the command */
+ SCpnt->result = DID_NO_CONNECT << 16;
+ done(SCpnt);
+ return 0;
+ }
+
+ writel(I2O_CMD_SCSI_EXEC<<24|HOST_TID<<12|tid, &msg->head[1]);
+ writel(i2o_scsi_driver.context, &msg->icntxt);
+
+ /* We want the SCSI control block back */
+ writel(i2o_cntxt_list_add(c, SCpnt), &msg->tcntxt);
+
+ /* LSI_920_PCI_QUIRK
+ *
+ * Intermittant observations of msg frame word data corruption
+ * observed on msg[4] after:
+ * WRITE, READ-MODIFY-WRITE
+ * operations. 19990606 -sralston
+ *
+ * (Hence we build this word via tag. Its good practice anyway
+ * we don't want fetches over PCI needlessly)
+ */
+
+ /* Attach tags to the devices */
+ /*
+ if(SCpnt->device->tagged_supported) {
+ if(SCpnt->tag == HEAD_OF_QUEUE_TAG)
+ scsi_flags |= 0x01000000;
+ else if(SCpnt->tag == ORDERED_QUEUE_TAG)
+ scsi_flags |= 0x01800000;
+ }
+ */
+
+ /* Direction, disconnect ok, tag, CDBLen */
+ writel(scsi_flags|0x20200000|SCpnt->cmd_len, &msg->body[0]);
+
+ mptr=&msg->body[1];
+
+ /* Write SCSI command into the message - always 16 byte block */
+ memcpy_toio(mptr, SCpnt->cmnd, 16);
+ mptr+=4;
+ lenptr=mptr++; /* Remember me - fill in when we know */
+
+ reqlen = 12; // SINGLE SGE
+
+ /* Now fill in the SGList and command */
+ if(SCpnt->use_sg) {
+ struct scatterlist *sg;
+ int sg_count;
+
+ sg = SCpnt->request_buffer;
+ len = 0;
+
+ sg_count = dma_map_sg(dev, sg, SCpnt->use_sg,
+ SCpnt->sc_data_direction);
+
+ if(unlikely(sg_count <= 0))
+ return -ENOMEM;
+
+ for(i = SCpnt->use_sg; i > 0; i--) {
+ if(i == 1)
+ sg_flags |= 0xC0000000;
+ writel(sg_flags|sg_dma_len(sg), mptr++);
+ writel(sg_dma_address(sg), mptr++);
+ len+=sg_dma_len(sg);
+ sg++;
+ }
+
+ reqlen = mptr - &msg->head[0];
+ writel(len, lenptr);
+ } else {
+ len = SCpnt->request_bufflen;
+
+ writel(len, lenptr);
+
+ if(len > 0) {
+ dma_addr_t dma_addr;
+
+ dma_addr = dma_map_single(dev, SCpnt->request_buffer,
+ SCpnt->request_bufflen,
+ SCpnt->sc_data_direction);
+ if(!dma_addr)
+ return -ENOMEM;
+
+ SCpnt->SCp.ptr = (void *)(unsigned long)dma_addr;
+ sg_flags |= 0xC0000000;
+ writel(sg_flags|SCpnt->request_bufflen, mptr++);
+ writel(dma_addr, mptr++);
+ } else
+ reqlen = 9;
+ }
+
+ /* Stick the headers on */
+ writel(reqlen<<16 | SGL_OFFSET_10, &msg->head[0]);
+
+ /* Queue the message */
+ i2o_msg_post(c,m);
+
+ DBG("Issued %ld\n", SCpnt->serial_number);
+
+ return 0;
+};
+
+#if 0
+/**
+ * i2o_scsi_abort - abort a running command
+ * @SCpnt: command to abort
+ *
+ * Ask the I2O controller to abort a command. This is an asynchrnous
+ * process and our callback handler will see the command complete
+ * with an aborted message if it succeeds.
+ *
+ * Locks: no locks are held or needed
+ */
+
+int i2o_scsi_abort(Scsi_Cmnd * SCpnt)
+{
+ struct i2o_controller *c;
+ struct Scsi_Host *host;
+ struct i2o_scsi_host *hostdata;
+ u32 msg[5];
+ int tid;
+ int status = FAILED;
+
+ printk(KERN_WARNING "i2o_scsi: Aborting command block.\n");
+
+ host = SCpnt->device->host;
+ hostdata = (struct i2o_scsi_host *)host->hostdata;
+ tid = hostdata->task[SCpnt->device->id][SCpnt->device->lun];
+ if(tid==-1)
+ {
+ printk(KERN_ERR "i2o_scsi: Impossible command to abort!\n");
+ return status;
+ }
+ c = hostdata->controller;
+
+ spin_unlock_irq(host->host_lock);
+
+ msg[0] = FIVE_WORD_MSG_SIZE;
+ msg[1] = I2O_CMD_SCSI_ABORT<<24|HOST_TID<<12|tid;
+ msg[2] = scsi_context;
+ msg[3] = 0;
+ msg[4] = i2o_context_list_remove(SCpnt, c);
+ if(i2o_post_wait(c, msg, sizeof(msg), 240))
+ status = SUCCESS;
+
+ spin_lock_irq(host->host_lock);
+ return status;
+}
+
+/**
+ * i2o_scsi_bus_reset - Issue a SCSI reset
+ * @SCpnt: the command that caused the reset
+ *
+ * Perform a SCSI bus reset operation. In I2O this is just a message
+ * we pass. I2O can do clever multi-initiator and shared reset stuff
+ * but we don't support this.
+ *
+ * Locks: called with no lock held, requires no locks.
+ */
+
+static int i2o_scsi_bus_reset(Scsi_Cmnd * SCpnt)
+{
+ int tid;
+ struct i2o_controller *c;
+ struct Scsi_Host *host;
+ struct i2o_scsi_host *hostdata;
+ u32 m;
+ void *msg;
+ unsigned long timeout;
+
+
+ /*
+ * Find the TID for the bus
+ */
+
+
+ host = SCpnt->device->host;
+
+ spin_unlock_irq(host->host_lock);
+
+ printk(KERN_WARNING "i2o_scsi: Attempting to reset the bus.\n");
+
+ hostdata = (struct i2o_scsi_host *)host->hostdata;
+ tid = hostdata->bus_task;
+ c = hostdata->controller;
+
+ /*
+ * Now send a SCSI reset request. Any remaining commands
+ * will be aborted by the IOP. We need to catch the reply
+ * possibly ?
+ */
+
+ timeout = jiffies+2*HZ;
+ do
+ {
+ m = le32_to_cpu(I2O_POST_READ32(c));
+ if(m != 0xFFFFFFFF)
+ break;
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(1);
+ mb();
+ }
+ while(time_before(jiffies, timeout));
+
+
+ msg = c->msg_virt + m;
+ i2o_raw_writel(FOUR_WORD_MSG_SIZE|SGL_OFFSET_0, msg);
+ i2o_raw_writel(I2O_CMD_SCSI_BUSRESET<<24|HOST_TID<<12|tid, msg+4);
+ i2o_raw_writel(scsi_context|0x80000000, msg+8);
+ /* We use the top bit to split controller and unit transactions */
+ /* Now store unit,tid so we can tie the completion back to a specific device */
+ __raw_writel(c->unit << 16 | tid, msg+12);
+ wmb();
+
+ /* We want the command to complete after we return */
+ spin_lock_irq(host->host_lock);
+ i2o_post_message(c,m);
+
+ /* Should we wait for the reset to complete ? */
+ return SUCCESS;
+}
+#endif
+
+/**
+ * i2o_scsi_host_reset - host reset callback
+ * @SCpnt: command causing the reset
+ *
+ * An I2O controller can be many things at once. While we can
+ * reset a controller the potential mess from doing so is vast, and
+ * it's better to simply hold on and pray
+ */
+
+static int i2o_scsi_host_reset(struct scsi_cmnd * SCpnt)
+{
+ return FAILED;
+}
+#if 0
+
+/**
+ * i2o_scsi_device_reset - device reset callback
+ * @SCpnt: command causing the reset
+ *
+ * I2O does not (AFAIK) support doing a device reset
+ */
+
+static int i2o_scsi_device_reset(Scsi_Cmnd * SCpnt)
+{
+ return FAILED;
+}
+
+/**
+ * i2o_scsi_bios_param - Invent disk geometry
+ * @sdev: scsi device
+ * @dev: block layer device
+ * @capacity: size in sectors
+ * @ip: geometry array
+ *
+ * This is anyones guess quite frankly. We use the same rules everyone
+ * else appears to and hope. It seems to work.
+ */
+
+static int i2o_scsi_bios_param(struct scsi_device * sdev,
+ struct block_device *dev, sector_t capacity, int *ip)
+{
+ int size;
+
+ size = capacity;
+ ip[0] = 64; /* heads */
+ ip[1] = 32; /* sectors */
+ if ((ip[2] = size >> 11) > 1024) { /* cylinders, test for big disk */
+ ip[0] = 255; /* heads */
+ ip[1] = 63; /* sectors */
+ ip[2] = size / (255 * 63); /* cylinders */
+ }
+ return 0;
+}
+
+
+#endif
+
+static struct scsi_host_template i2o_scsi_host_template = {
+ .proc_name = "SCSI-OSM",
+ .name = "I2O SCSI Peripheral OSM",
+ .info = i2o_scsi_info,
+ .queuecommand = i2o_scsi_queuecommand,
+/*
+ .eh_abort_handler = i2o_scsi_abort,
+ .eh_bus_reset_handler = i2o_scsi_bus_reset,
+ .eh_device_reset_handler= i2o_scsi_device_reset,
+*/
+ .eh_host_reset_handler = i2o_scsi_host_reset,
+/*
+ .bios_param = i2o_scsi_bios_param,
+*/
+ .can_queue = I2O_SCSI_CAN_QUEUE,
+ .sg_tablesize = 8,
+ .cmd_per_lun = 6,
+ .use_clustering = ENABLE_CLUSTERING,
+ .slave_alloc = i2o_scsi_slave_alloc,
+};
+
+
+/*
+int
+i2o_scsi_queuecommand(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd *))
+{
+ printk(KERN_INFO "queuecommand\n");
+ return SCSI_MLQUEUE_HOST_BUSY;
+};
+*/
+
+static struct i2o_scsi_host * i2o_scsi_host_alloc(struct i2o_controller *c)
+{
+ struct i2o_scsi_host *i2o_shost;
+ struct i2o_device *i2o_dev;
+ struct Scsi_Host *scsi_host;
+ int max_channel = 0;
+ u8 type;
+ int i;
+ size_t size;
+ i2o_status_block *sb;
+
+ list_for_each_entry(i2o_dev, &c->devices, list)
+ if(i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT) {
+ if(i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1) ||
+ (type == 1)) /* SCSI bus */
+ max_channel ++;
+ }
+
+ if(!max_channel) {
+ printk(KERN_WARNING "scsi-osm: no channels found on %s\n",
+ c->name);
+ return ERR_PTR(-EFAULT);
+ }
+
+ size = max_channel * sizeof(struct i2o_device *)
+ + sizeof(struct i2o_scsi_host);
+
+ scsi_host = scsi_host_alloc(&i2o_scsi_host_template, size);
+ if(!scsi_host) {
+ printk(KERN_WARNING "scsi-osm: Could not allocate SCSI host\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ scsi_host->max_channel = max_channel - 1;
+ scsi_host->max_id = i2o_scsi_max_id;
+ scsi_host->max_lun = i2o_scsi_max_lun;
+ scsi_host->this_id = c->unit;
+
+ sb = c->status_block.virt;
+
+ scsi_host->sg_tablesize = (sb->inbound_frame_size -
+ sizeof(struct i2o_message)/4 - 6) / 2;
+
+ i2o_shost = (struct i2o_scsi_host *) scsi_host->hostdata;
+ i2o_shost->scsi_host = scsi_host;
+ i2o_shost->iop = c;
+
+ i = 0;
+ list_for_each_entry(i2o_dev, &c->devices, list)
+ if(i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER_PORT) {
+ if(i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1) ||
+ (type == 1)) /* only SCSI bus */
+ i2o_shost->channel[i++] = i2o_dev;
+
+ if(i >= max_channel)
+ break;
+ }
+
+ return i2o_shost;
+};
+
+/**
+ * i2o_scsi_get_host - Get an I2O SCSI host
+ * @c: I2O controller to for which to get the SCSI host
+ *
+ * If the I2O controller already exists as SCSI host, the SCSI host
+ * is returned, otherwise the I2O controller is added to the SCSI
+ * core.
+ *
+ * Returns pointer to the I2O SCSI host on success or negative error code
+ * on failure.
+ */
+static struct i2o_scsi_host *i2o_scsi_get_host(struct i2o_controller *c)
+{
+ struct i2o_scsi_host *i2o_shost;
+ int rc;
+
+ /* skip if already registered as I2O SCSI host */
+ list_for_each_entry(i2o_shost, &i2o_scsi_hosts, list)
+ if(i2o_shost->iop == c)
+ return i2o_shost;
+
+ i2o_shost = i2o_scsi_host_alloc(c);
+ if(IS_ERR(i2o_shost)) {
+ printk(KERN_ERR "scsi-osm: Could not initialize SCSI host\n");
+ return i2o_shost;
+ }
+
+ rc = scsi_add_host(i2o_shost->scsi_host, &c->device);
+ if(rc) {
+ printk(KERN_ERR "scsi-osm: Could not add SCSI host\n");
+ scsi_host_put(i2o_shost->scsi_host);
+ return ERR_PTR(rc);
+ }
+
+ list_add(&i2o_shost->list, &i2o_scsi_hosts);
+ DBG("new I2O SCSI host added\n");
+
+ return i2o_shost;
+
+};
+
+/**
+ * i2o_scsi_init - SCSI OSM initialization function
+ *
+ * Register SCSI OSM into I2O core.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_scsi_init(void)
+{
+ int rc;
+
+ printk(KERN_INFO "I2O SCSI Peripheral OSM\n");
+
+ /* Register SCSI OSM into I2O core */
+ rc = i2o_driver_register(&i2o_scsi_driver);
+ if(rc) {
+ printk(KERN_ERR "scsi-osm: Could not register SCSI driver\n");
+ return rc;
+ }
+
+ return 0;
+};
+
+/**
+ * i2o_scsi_exit - SCSI OSM exit function
+ *
+ * Unregisters SCSI OSM from I2O core.
+ */
+static void __exit i2o_scsi_exit(void)
+{
+ struct i2o_scsi_host *i2o_shost, *tmp;
+
+ /* Remove I2O SCSI hosts */
+ list_for_each_entry_safe(i2o_shost, tmp, &i2o_scsi_hosts, list) {
+ scsi_remove_host(i2o_shost->scsi_host);
+ scsi_host_put(i2o_shost->scsi_host);
+ }
+
+ /* Unregister I2O SCSI OSM from I2O core */
+ i2o_driver_unregister(&i2o_scsi_driver);
+};
+
+
+MODULE_AUTHOR("Red Hat Software");
+MODULE_LICENSE("GPL");
+
+
+module_init(i2o_scsi_init);
+module_exit(i2o_scsi_exit);
diff -puN include/linux/i2o-dev.h~i2o-build_99 include/linux/i2o-dev.h
--- 25/include/linux/i2o-dev.h~i2o-build_99 Tue Jul 27 14:06:32 2004
+++ 25-akpm/include/linux/i2o-dev.h Tue Jul 27 14:06:32 2004
@@ -23,7 +23,7 @@
/* How many controllers are we allowing */
#define MAX_I2O_CONTROLLERS 32
-#include <linux/ioctl.h>
+//#include <linux/ioctl.h>
/*
* I2O Control IOCTLs and structures
@@ -42,28 +42,35 @@
#define I2OEVTREG _IOW(I2O_MAGIC_NUMBER,10,struct i2o_evt_id)
#define I2OEVTGET _IOR(I2O_MAGIC_NUMBER,11,struct i2o_evt_info)
#define I2OPASSTHRU _IOR(I2O_MAGIC_NUMBER,12,struct i2o_cmd_passthru)
+#define I2OPASSTHRU32 _IOR(I2O_MAGIC_NUMBER,12,struct i2o_cmd_passthru32)
+
+struct i2o_cmd_passthru32
+{
+ unsigned int iop; /* IOP unit number */
+ u32 msg; /* message */
+};
struct i2o_cmd_passthru
{
unsigned int iop; /* IOP unit number */
- void __user *msg; /* message */
+ void *msg; /* message */
};
struct i2o_cmd_hrtlct
{
unsigned int iop; /* IOP unit number */
- void __user *resbuf; /* Buffer for result */
- unsigned int __user *reslen; /* Buffer length in bytes */
+ void *resbuf; /* Buffer for result */
+ unsigned int *reslen; /* Buffer length in bytes */
};
struct i2o_cmd_psetget
{
unsigned int iop; /* IOP unit number */
unsigned int tid; /* Target device TID */
- void __user *opbuf; /* Operation List buffer */
+ void *opbuf; /* Operation List buffer */
unsigned int oplen; /* Operation List buffer length in bytes */
- void __user *resbuf; /* Result List buffer */
- unsigned int __user *reslen; /* Result List buffer length in bytes */
+ void *resbuf; /* Result List buffer */
+ unsigned int *reslen; /* Result List buffer length in bytes */
};
struct i2o_sw_xfer
@@ -72,10 +79,10 @@ struct i2o_sw_xfer
unsigned char flags; /* Flags field */
unsigned char sw_type; /* Software type */
unsigned int sw_id; /* Software ID */
- void __user *buf; /* Pointer to software buffer */
- unsigned int __user *swlen; /* Length of software data */
- unsigned int __user *maxfrag; /* Maximum fragment count */
- unsigned int __user *curfrag; /* Current fragment count */
+ void *buf; /* Pointer to software buffer */
+ unsigned int *swlen; /* Length of software data */
+ unsigned int *maxfrag; /* Maximum fragment count */
+ unsigned int *curfrag; /* Current fragment count */
};
struct i2o_html
@@ -83,9 +90,9 @@ struct i2o_html
unsigned int iop; /* IOP unit number */
unsigned int tid; /* Target device ID */
unsigned int page; /* HTML page */
- void __user *resbuf; /* Buffer for reply HTML page */
- unsigned int __user *reslen; /* Length in bytes of reply buffer */
- void __user *qbuf; /* Pointer to HTTP query string */
+ void *resbuf; /* Buffer for reply HTML page */
+ unsigned int *reslen; /* Length in bytes of reply buffer */
+ void *qbuf; /* Pointer to HTTP query string */
unsigned int qlen; /* Length in bytes of query string buffer */
};
@@ -351,6 +358,7 @@ typedef struct _i2o_status_block
#define I2O_CLASS_BUS_ADAPTER_PORT 0x080
#define I2O_CLASS_PEER_TRANSPORT_AGENT 0x090
#define I2O_CLASS_PEER_TRANSPORT 0x091
+#define I2O_CLASS_END 0xfff
/*
* Rest of 0x092 - 0x09f reserved for peer-to-peer classes
diff -puN include/linux/i2o.h~i2o-build_99 include/linux/i2o.h
--- 25/include/linux/i2o.h~i2o-build_99 Tue Jul 27 14:06:32 2004
+++ 25-akpm/include/linux/i2o.h Tue Jul 27 14:06:32 2004
@@ -23,66 +23,116 @@
#include <linux/i2o-dev.h>
/* How many different OSM's are we allowing */
-#define MAX_I2O_MODULES 4
-
-/* How many OSMs can register themselves for device status updates? */
-#define I2O_MAX_MANAGERS 4
+#define I2O_MAX_DRIVERS 4
+#include <asm/io.h>
#include <asm/semaphore.h> /* Needed for MUTEX init macros */
-#include <linux/config.h>
-#include <linux/notifier.h>
-#include <asm/atomic.h>
+#include <linux/pci.h>
+#include <asm/dma-mapping.h>
+
+
+/* message queue empty */
+#define I2O_QUEUE_EMPTY 0xffffffff
+
/*
* Message structures
*/
struct i2o_message
{
- u8 version_offset;
- u8 flags;
- u16 size;
- u32 target_tid:12;
- u32 init_tid:12;
- u32 function:8;
- u32 initiator_context;
+ union {
+ struct {
+ u8 version_offset;
+ u8 flags;
+ u16 size;
+ u32 target_tid:12;
+ u32 init_tid:12;
+ u32 function:8;
+ u32 icntxt; /* initiator context */
+ u32 tcntxt; /* transaction context */
+ };
+ u32 head[4];
+ };
/* List follows */
+ u32 body[0];
};
/*
- * Each I2O device entity has one or more of these. There is one
- * per device.
+ * Each I2O device entity has one of these. There is one per device.
*/
struct i2o_device
{
i2o_lct_entry lct_data; /* Device LCT information */
- u32 flags;
- int i2oversion; /* I2O version supported. Actually
- * there should be high and low
- * version */
- struct proc_dir_entry *proc_entry; /* /proc dir */
+ struct i2o_controller *iop; /* Controlling IOP */
+ struct list_head list; /* node in IOP devices list */
+
+ struct device device;
+
+ struct semaphore lock; /* device lock */
+
+ struct class_device classdev; /* i2o device class */
+};
+
+/*
+ * Event structure provided to the event handling function
+ */
+struct i2o_event {
+ struct work_struct work;
+ struct i2o_device *i2o_dev; /* I2O device pointer from which the
+ event reply was initiated */
+ u16 size; /* Size of data in 32-bit words */
+ u32 tcntxt; /* Transaction context used at
+ registration */
+ u32 event_indicator; /* Event indicator from reply */
+ u32 data[0]; /* Event data from reply */
+};
+
+/*
+ * I2O classes which could be handled by the OSM
+ */
+struct i2o_class_id {
+ u16 class_id:12;
+};
+
+/*
+ * I2O driver structure for OSMs
+ */
+struct i2o_driver {
+ char *name; /* OSM name */
+ int context; /* Low 8 bits of the transaction info */
+ struct i2o_class_id *classes; /* I2O classes that this OSM handles */
- /* Primary user */
- struct i2o_handler *owner;
+ /* Message reply handler */
+ int (*reply)(struct i2o_controller *, u32, struct i2o_message *);
+
+ /* Event handler */
+ void (*event)(struct i2o_event *);
+
+ struct workqueue_struct *event_queue; /* Event queue */
- /* Management users */
- struct i2o_handler *managers[I2O_MAX_MANAGERS];
- int num_managers;
+ struct device_driver driver;
+
+ struct semaphore lock;
+};
- struct i2o_controller *controller; /* Controlling IOP */
- struct i2o_device *next; /* Chain */
- struct i2o_device *prev;
- char dev_name[8]; /* linux /dev name if available */
+/*
+ * Contains all information which are necessary for DMA operations
+ */
+struct i2o_dma {
+ void *virt;
+ dma_addr_t phys;
+ u32 len;
};
/*
- * context queue entry, used for 32-bit context on 64-bit systems
+ * Context queue entry, used for 32-bit context on 64-bit systems
*/
struct i2o_context_list_element {
- struct i2o_context_list_element *next;
+ struct list_head list;
u32 context;
void *ptr;
- unsigned int flags;
+ unsigned long timestamp;
};
/*
@@ -93,47 +143,42 @@ struct i2o_controller
char name[16];
int unit;
int type;
- int enabled;
- struct pci_dev *pdev; /* PCI device */
- int irq;
- int short_req:1; /* Use small block sizes */
- int dpt:1; /* Don't quiesce */
- int raptor:1; /* split bar */
- int promise:1; /* Promise controller */
+ struct pci_dev *pdev; /* PCI device */
+
+ int short_req:1; /* use small block sizes */
+ int no_quiesce:1; /* dont quiesce before reset */
+ int raptor:1; /* split bar */
+ int promise:1; /* Promise controller */
+
#ifdef CONFIG_MTRR
int mtrr_reg0;
int mtrr_reg1;
#endif
+ struct list_head devices; /* list of I2O devices */
+
struct notifier_block *event_notifer; /* Events */
atomic_t users;
- struct i2o_device *devices; /* I2O device chain */
- struct i2o_controller *next; /* Controller chain */
+ struct list_head list; /* Controller list */
void *post_port; /* Inbout port address */
void *reply_port; /* Outbound port address */
void *irq_mask; /* Interrupt register address */
/* Dynamic LCT related data */
- struct semaphore lct_sem;
- int lct_pid;
- int lct_running;
-
- i2o_status_block *status_block; /* IOP status block */
- dma_addr_t status_block_phys;
- i2o_lct *lct; /* Logical Config Table */
- dma_addr_t lct_phys;
- i2o_lct *dlct; /* Temp LCT */
- dma_addr_t dlct_phys;
- i2o_hrt *hrt; /* HW Resource Table */
- dma_addr_t hrt_phys;
- u32 hrt_len;
- void *base_virt; /* base virtual address */
- unsigned long base_phys; /* base physical address */
+ struct i2o_dma status; /* status of IOP */
- void *msg_virt; /* messages virtual address */
- unsigned long msg_phys; /* messages physical address */
+ struct i2o_dma hrt; /* HW Resource Table */
+ i2o_lct *lct; /* Logical Config Table */
+ struct i2o_dma dlct; /* Temp LCT */
+ struct semaphore lct_lock; /* Lock for LCT updates */
+ struct i2o_dma status_block; /* IOP status block */
+
+
+ struct i2o_dma base; /* controller messaging unit */
+ struct i2o_dma in_queue; /* inbound message queue Host->IOP */
+ struct i2o_dma out_queue; /* outbound message queue IOP->Host */
int battery:1; /* Has a battery backup */
int io_alloc:1; /* An I/O resource was allocated */
@@ -145,68 +190,20 @@ struct i2o_controller
struct proc_dir_entry *proc_entry; /* /proc dir */
- void *page_frame; /* Message buffers */
- dma_addr_t page_frame_map; /* Cache map */
+ struct list_head bus_list; /* list of busses on IOP */
+ struct device device;
+ struct i2o_device *exec; /* Executive */
#if BITS_PER_LONG == 64
spinlock_t context_list_lock; /* lock for context_list */
- struct i2o_context_list_element *context_list; /* list of context id's
+ atomic_t context_list_counter; /* needed for unique contexts */
+ struct list_head context_list; /* list of context id's
and pointers */
#endif
+ spinlock_t lock; /* lock for controller
+ configuration */
};
/*
- * OSM resgistration block
- *
- * Each OSM creates at least one of these and registers it with the
- * I2O core through i2o_register_handler. An OSM may want to
- * register more than one if it wants a fast path to a reply
- * handler by having a separate initiator context for each
- * class function.
- */
-struct i2o_handler
-{
- /* Message reply handler */
- void (*reply)(struct i2o_handler *, struct i2o_controller *,
- struct i2o_message *);
-
- /* New device notification handler */
- void (*new_dev_notify)(struct i2o_controller *, struct i2o_device *);
-
- /* Device deltion handler */
- void (*dev_del_notify)(struct i2o_controller *, struct i2o_device *);
-
- /* Reboot notification handler */
- void (*reboot_notify)(void);
-
- char *name; /* OSM name */
- int context; /* Low 8 bits of the transaction info */
- u32 class; /* I2O classes that this driver handles */
- /* User data follows */
-};
-
-#ifdef MODULE
-/*
- * Used by bus specific modules to communicate with the core
- *
- * This is needed because the bus modules cannot make direct
- * calls to the core as this results in the i2o_bus_specific_module
- * being dependent on the core, not the otherway around.
- * In that case, a 'modprobe i2o_lan' loads i2o_core & i2o_lan,
- * but _not_ i2o_pci...which makes the whole thing pretty useless :)
- *
- */
-struct i2o_core_func_table
-{
- int (*install)(struct i2o_controller *);
- int (*activate)(struct i2o_controller *);
- struct i2o_controller *(*find)(int);
- void (*unlock)(struct i2o_controller *);
- void (*run_queue)(struct i2o_controller * c);
- int (*delete)(struct i2o_controller *);
-};
-#endif /* MODULE */
-
-/*
* I2O System table entry
*
* The system table contains information about all the IOPs in the
@@ -242,53 +239,291 @@ struct i2o_sys_tbl
struct i2o_sys_tbl_entry iops[0];
};
+extern struct list_head i2o_controllers;
+
+
+/* Message functions */
+static inline u32 i2o_msg_get(struct i2o_controller *, struct i2o_message **);
+extern u32 i2o_msg_get_wait(struct i2o_controller *, struct i2o_message **,int);
+static inline void i2o_msg_post(struct i2o_controller *, u32);
+static inline int i2o_msg_post_wait(struct i2o_controller *,u32,unsigned long);
+extern int i2o_msg_post_wait_mem(struct i2o_controller *, u32, unsigned long,
+ struct i2o_dma *);
+extern void i2o_msg_nop(struct i2o_controller *, u32);
+static inline void i2o_flush_reply(struct i2o_controller *, u32);
+
+
+/* DMA handling functions */
+static inline int i2o_dma_alloc(struct device *, struct i2o_dma *, size_t,
+ unsigned int);
+static inline void i2o_dma_free(struct device *, struct i2o_dma *);
+int i2o_dma_realloc(struct device *, struct i2o_dma *, size_t, unsigned int);
+
+static inline int i2o_dma_map(struct device *, struct i2o_dma *);
+static inline void i2o_dma_unmap(struct device *, struct i2o_dma *);
+
+/* IOP functions */
+extern int i2o_status_get(struct i2o_controller *);
+extern int i2o_hrt_get(struct i2o_controller *);
+
+extern int i2o_event_register(struct i2o_device *, struct i2o_driver *,int,u32);
+extern struct i2o_device *i2o_iop_find_device(struct i2o_controller *, u16);
+extern struct i2o_controller *i2o_find_iop(int);
+
+/* Functions needed for handling 64-bit pointers in 32-bit context */
+#if BITS_PER_LONG == 64
+extern u32 i2o_cntxt_list_add(struct i2o_controller *, void *);
+extern void *i2o_cntxt_list_get(struct i2o_controller *, u32);
+extern u32 i2o_cntxt_list_remove(struct i2o_controller *, void *);
+
+static inline u32 i2o_ptr_low(void *ptr)
+{
+ return (u32)(u64)ptr;
+};
+
+static inline u32 i2o_ptr_high(void *ptr)
+{
+ return (u32)((u64)ptr>>32);
+};
+#else
+static inline u32 i2o_cntxt_list_add(struct i2o_controller *c, void *ptr)
+{
+ return (u32)ptr;
+};
+
+static inline void *i2o_cntxt_list_get(struct i2o_controller *c, u32 context)
+{
+ return (void *)context;
+};
+
+static inline u32 i2o_cntxt_list_remove(struct i2o_controller *c, void *ptr)
+{
+ return (u32)ptr;
+};
+
+static inline u32 i2o_ptr_low(void *ptr)
+{
+ return (u32)ptr;
+};
+
+static inline u32 i2o_ptr_high(void *ptr)
+{
+ return 0;
+};
+#endif
+
+/* I2O driver (OSM) functions */
+extern int i2o_driver_register(struct i2o_driver *);
+extern void i2o_driver_unregister(struct i2o_driver *);
+
+/* I2O device functions */
+extern int i2o_device_claim(struct i2o_device *);
+extern int i2o_device_claim_release(struct i2o_device *);
+
+/* Exec OSM functions */
+extern int i2o_exec_lct_get(struct i2o_controller *);
+extern int i2o_exec_lct_notify(struct i2o_controller *, u32);
+
+/* device to i2o_device and driver to i2o_driver convertion functions */
+#define to_i2o_driver(drv) container_of(drv,struct i2o_driver, driver)
+#define to_i2o_device(dev) container_of(dev, struct i2o_device, device)
+
+
/*
* Messenger inlines
*/
static inline u32 I2O_POST_READ32(struct i2o_controller *c)
{
+ rmb();
return readl(c->post_port);
-}
+};
static inline void I2O_POST_WRITE32(struct i2o_controller *c, u32 val)
{
+ wmb();
writel(val, c->post_port);
-}
+};
static inline u32 I2O_REPLY_READ32(struct i2o_controller *c)
{
+ rmb();
return readl(c->reply_port);
-}
+};
static inline void I2O_REPLY_WRITE32(struct i2o_controller *c, u32 val)
{
+ wmb();
writel(val, c->reply_port);
-}
+};
static inline u32 I2O_IRQ_READ32(struct i2o_controller *c)
{
+ rmb();
return readl(c->irq_mask);
-}
+};
static inline void I2O_IRQ_WRITE32(struct i2o_controller *c, u32 val)
{
+ wmb();
writel(val, c->irq_mask);
-}
+ wmb();
+};
+
+/**
+ * i2o_msg_get - obtain an I2O message from the IOP
+ * @c: I2O controller
+ * @msg: pointer to a I2O message pointer
+ *
+ * This function tries to get a message slot. If no message slot is
+ * available do not wait until one is availabe (see also i2o_msg_get_wait).
+ *
+ * On a success the message is returned and the pointer to the message is
+ * set in msg. The returned message is the physical page frame offset
+ * address from the read port (see the i2o spec). If no message is
+ * available returns I2O_QUEUE_EMPTY and msg is leaved untouched.
+ */
+static inline u32 i2o_msg_get(struct i2o_controller *c,struct i2o_message **msg)
+{
+ u32 m;
+
+ if((m=I2O_POST_READ32(c))!=I2O_QUEUE_EMPTY)
+ *msg = c->in_queue.virt + m;
+ return m;
+};
-static inline void i2o_post_message(struct i2o_controller *c, u32 m)
+/**
+ * i2o_msg_post - Post I2O message to I2O controller
+ * @c: I2O controller to which the message should be send
+ * @m: the message identifier
+ *
+ * Post the message to the I2O controller.
+ */
+static inline void i2o_msg_post(struct i2o_controller *c, u32 m)
{
- /* The second line isnt spurious - thats forcing PCI posting */
I2O_POST_WRITE32(c, m);
- (void) I2O_IRQ_READ32(c);
-}
+};
+
+/**
+ * i2o_msg_post_wait - Post and wait a message and wait until return
+ * @c: controller
+ * @m: message to post
+ * @timeout: time in seconds to wait
+ *
+ * This API allows an OSM to post a message and then be told whether or
+ * not the system received a successful reply. If the message times out
+ * then the value '-ETIMEDOUT' is returned.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static inline int i2o_msg_post_wait(struct i2o_controller *c, u32 m,
+ unsigned long timeout)
+{
+ return i2o_msg_post_wait_mem(c, m, timeout, NULL);
+};
+/**
+ * i2o_flush_reply - Flush reply from I2O controller
+ * @c: I2O controller
+ * @m: the message identifier
+ *
+ * The I2O controller must be informed that the reply message is not needed
+ * anymore. If you forget to flush the reply, the message frame can't be
+ * used by the controller anymore and is therefore lost.
+ *
+ * FIXME: is there a timeout after which the controller reuse the message?
+ */
static inline void i2o_flush_reply(struct i2o_controller *c, u32 m)
{
I2O_REPLY_WRITE32(c, m);
-}
+};
+
+/**
+ * i2o_dma_alloc - Allocate DMA memory
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: i2o_dma struct which should get the DMA buffer
+ * @len: length of the new DMA memory
+ * @gfp_mask: GFP mask
+ *
+ * Allocate a coherent DMA memory and write the pointers into addr.
+ *
+ * Returns 0 on success or -ENOMEM on failure.
+ */
+static inline int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr,
+ size_t len, unsigned int gfp_mask)
+{
+ addr->virt = dma_alloc_coherent(dev, len, &addr->phys, gfp_mask);
+ if(!addr->virt)
+ return -ENOMEM;
+
+ memset(addr->virt, 0, len);
+ addr->len = len;
+
+ return 0;
+};
+
+/**
+ * i2o_dma_free - Free DMA memory
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: i2o_dma struct which contains the DMA buffer
+ *
+ * Free a coherent DMA memory and set virtual address of addr to NULL.
+ */
+static inline void i2o_dma_free(struct device *dev, struct i2o_dma *addr)
+{
+ if(addr->virt) {
+ if(addr->phys)
+ dma_free_coherent(dev, addr->len,addr->virt,addr->phys);
+ else
+ kfree(addr->virt);
+ addr->virt = NULL;
+ }
+};
+
+/**
+ * i2o_dma_map - Map the memory to DMA
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: i2o_dma struct which should be mapped
+ *
+ * Map the memory in addr->virt to coherent DMA memory and write the
+ * physical address into addr->phys.
+ *
+ * Returns 0 on success or -ENOMEM on failure.
+ */
+static inline int i2o_dma_map(struct device *dev, struct i2o_dma *addr)
+{
+ if(!addr->virt)
+ return -EFAULT;
+
+ if(!addr->phys)
+ addr->phys = dma_map_single(dev, addr->virt, addr->len,
+ DMA_BIDIRECTIONAL);
+ if(!addr->phys)
+ return -ENOMEM;
+
+ return 0;
+};
+
+/**
+ * i2o_dma_unmap - Unmap the DMA memory
+ * @dev: struct device pointer to the PCI device of the I2O controller
+ * @addr: i2o_dma struct which should be unmapped
+ *
+ * Unmap the memory in addr->virt from DMA memory.
+ */
+static inline void i2o_dma_unmap(struct device *dev, struct i2o_dma *addr)
+{
+ if(!addr->virt)
+ return;
+
+ if(addr->phys) {
+ dma_unmap_single(dev, addr->phys, addr->len, DMA_BIDIRECTIONAL);
+ addr->phys = 0;
+ }
+};
+
/*
* Endian handling wrapped into the macro - keeps the core code
@@ -297,30 +532,12 @@ static inline void i2o_flush_reply(struc
#define i2o_raw_writel(val, mem) __raw_writel(cpu_to_le32(val), mem)
-extern struct i2o_controller *i2o_find_controller(int);
-extern void i2o_unlock_controller(struct i2o_controller *);
-extern struct i2o_controller *i2o_controller_chain;
-extern int i2o_num_controllers;
-extern int i2o_status_get(struct i2o_controller *);
-extern int i2o_install_handler(struct i2o_handler *);
-extern int i2o_remove_handler(struct i2o_handler *);
-
-extern int i2o_claim_device(struct i2o_device *, struct i2o_handler *);
-extern int i2o_release_device(struct i2o_device *, struct i2o_handler *);
-extern int i2o_device_notify_on(struct i2o_device *, struct i2o_handler *);
-extern int i2o_device_notify_off(struct i2o_device *,
- struct i2o_handler *);
-
-extern int i2o_post_this(struct i2o_controller *, u32 *, int);
-extern int i2o_post_wait(struct i2o_controller *, u32 *, int, int);
-extern int i2o_post_wait_mem(struct i2o_controller *, u32 *, int, int,
- void *, void *, dma_addr_t, dma_addr_t, int, int);
-
-extern int i2o_query_scalar(struct i2o_controller *, int, int, int, void *,
- int);
-extern int i2o_set_scalar(struct i2o_controller *, int, int, int, void *,
- int);
+extern int i2o_parm_field_get(struct i2o_device *, int, int, void *, int);
+extern int i2o_parm_field_set(struct i2o_device *, int, int, void *, int);
+extern int i2o_parm_table_get(struct i2o_device *, int, int, int, void *, int,
+ void *, int);
+/* FIXME: remove
extern int i2o_query_table(int, struct i2o_controller *, int, int, int,
void *, int, void *, int);
extern int i2o_clear_table(struct i2o_controller *, int, int);
@@ -328,39 +545,15 @@ extern int i2o_row_add_table(struct i2o_
void *, int);
extern int i2o_issue_params(int, struct i2o_controller *, int, void *, int,
void *, int);
+*/
-extern int i2o_event_register(struct i2o_controller *, u32, u32, u32, u32);
-extern int i2o_event_ack(struct i2o_controller *, u32 *);
-extern void i2o_report_status(const char *, const char *, u32 *);
-extern void i2o_dump_message(u32 *);
-extern const char *i2o_get_class_name(int);
-
-extern int i2o_install_controller(struct i2o_controller *);
-extern int i2o_activate_controller(struct i2o_controller *);
-extern void i2o_run_queue(struct i2o_controller *);
-extern int i2o_delete_controller(struct i2o_controller *);
+/* debugging functions */
+extern void i2o_report_status(const char *, const char *, struct i2o_message *);
+extern void i2o_dump_message(struct i2o_message *);
+extern void i2o_dump_hrt(struct i2o_controller *c);
+extern void i2o_debug_state(struct i2o_controller *c);
-#if BITS_PER_LONG == 64
-extern u32 i2o_context_list_add(void *, struct i2o_controller *);
-extern void *i2o_context_list_get(u32, struct i2o_controller *);
-extern u32 i2o_context_list_remove(void *, struct i2o_controller *);
-#else
-static inline u32 i2o_context_list_add(void *ptr, struct i2o_controller *c)
-{
- return (u32)ptr;
-}
-
-static inline void *i2o_context_list_get(u32 context, struct i2o_controller *c)
-{
- return (void *)context;
-}
-
-static inline u32 i2o_context_list_remove(void *ptr, struct i2o_controller *c)
-{
- return (u32)ptr;
-}
-#endif
/*
* Cache strategies
@@ -414,8 +607,6 @@ static inline u32 i2o_context_list_remov
#define BLKI2OSWSTRAT _IOW('2', 4, int)
-
-
/*
* I2O Function codes
*/
@@ -679,7 +870,7 @@ static inline u32 i2o_context_list_remov
#define ADAPTER_TID 0
#define HOST_TID 1
-#define MSG_FRAME_SIZE 64 /* i2o_scsi assumes >= 32 */
+#define MSG_FRAME_SIZE 128 /* i2o_scsi assumes >= 32 */
#define REPLY_FRAME_SIZE 17
#define SG_TABLESIZE 30
#define NMBR_MSG_FRAMES 128
@@ -693,5 +884,22 @@ static inline u32 i2o_context_list_remov
#define I2O_CONTEXT_LIST_USED 0x01
#define I2O_CONTEXT_LIST_DELETED 0x02
+/* timeouts */
+#define I2O_TIMEOUT_INIT_OUTBOUND_QUEUE 15
+#define I2O_TIMEOUT_MESSAGE_GET 5
+#define I2O_TIMEOUT_RESET 30
+#define I2O_TIMEOUT_STATUS_GET 5
+#define I2O_TIMEOUT_LCT_GET 20
+
+/* retries */
+#define I2O_HRT_GET_TRIES 3
+#define I2O_LCT_GET_TRIES 3
+
+/* request queue sizes */
+#define I2O_MAX_SECTORS 1024
+#define I2O_MAX_SEGMENTS 128
+
+#define I2O_REQ_MEMPOOL_SIZE 32
+
#endif /* __KERNEL__ */
#endif /* _I2O_H */
_