source "drivers/firewire/Kconfig"
-source "drivers/message/i2o/Kconfig"
-
source "drivers/macintosh/Kconfig"
source "drivers/net/Kconfig"
# Makefile for MPT based block devices
#
-obj-$(CONFIG_I2O) += i2o/
obj-$(CONFIG_FUSION) += fusion/
+++ /dev/null
-
-menuconfig I2O
- tristate "I2O device support"
- depends on PCI
- ---help---
- The Intelligent Input/Output (I2O) architecture allows hardware
- drivers to be split into two parts: an operating system specific
- module called the OSM and an hardware specific module called the
- HDM. The OSM can talk to a whole range of HDM's, and ideally the
- HDM's are not OS dependent. This allows for the same HDM driver to
- be used under different operating systems if the relevant OSM is in
- place. In order for this to work, you need to have an I2O interface
- adapter card in your computer. This card contains a special I/O
- processor (IOP), thus allowing high speeds since the CPU does not
- have to deal with I/O.
-
- If you say Y here, you will get a choice of interface adapter
- drivers and OSM's with the following questions.
-
- To compile this support as a module, choose M here: the
- modules will be called i2o_core.
-
- If unsure, say N.
-
-if I2O
-
-config I2O_LCT_NOTIFY_ON_CHANGES
- bool "Enable LCT notification"
- default y
- ---help---
- Only say N here if you have a I2O controller from SUN. The SUN
- firmware doesn't support LCT notification on changes. If this option
- is enabled on such a controller the driver will hang up in a endless
- loop. On all other controllers say Y.
-
- If unsure, say Y.
-
-config I2O_EXT_ADAPTEC
- bool "Enable Adaptec extensions"
- default y
- ---help---
- Say Y for support of raidutils for Adaptec I2O controllers. You also
- have to say Y to "I2O Configuration support", "I2O SCSI OSM" below
- and to "SCSI generic support" under "SCSI device configuration".
-
-config I2O_EXT_ADAPTEC_DMA64
- bool "Enable 64-bit DMA"
- depends on I2O_EXT_ADAPTEC && ( 64BIT || HIGHMEM64G )
- default y
- ---help---
- Say Y for support of 64-bit DMA transfer mode on Adaptec I2O
- controllers.
- Note: You need at least firmware version 3709.
-
-config I2O_CONFIG
- tristate "I2O Configuration support"
- depends on VIRT_TO_BUS
- ---help---
- Say Y for support of the configuration interface for the I2O adapters.
- If you have a RAID controller from Adaptec and you want to use the
- raidutils to manage your RAID array, you have to say Y here.
-
- To compile this support as a module, choose M here: the
- module will be called i2o_config.
-
- Note: If you want to use the new API you have to download the
- i2o_config patch from http://i2o.shadowconnect.com/
-
-config I2O_CONFIG_OLD_IOCTL
- bool "Enable ioctls (OBSOLETE)"
- depends on I2O_CONFIG
- default y
- ---help---
- Enables old ioctls.
-
-config I2O_BUS
- tristate "I2O Bus Adapter OSM"
- ---help---
- Include support for the I2O Bus Adapter OSM. The Bus Adapter OSM
- provides access to the busses on the I2O controller. The main purpose
- is to rescan the bus to find new devices.
-
- To compile this support as a module, choose M here: the
- module will be called i2o_bus.
-
-config I2O_BLOCK
- tristate "I2O Block OSM"
- depends on BLOCK
- ---help---
- Include support for the I2O Block OSM. The Block OSM presents disk
- and other structured block devices to the operating system. If you
- are using an RAID controller, you could access the array only by
- the Block OSM driver. But it is possible to access the single disks
- by the SCSI OSM driver, for example to monitor the disks.
-
- To compile this support as a module, choose M here: the
- module will be called i2o_block.
-
-config I2O_SCSI
- tristate "I2O SCSI OSM"
- depends on SCSI
- ---help---
- Allows direct SCSI access to SCSI devices on a SCSI or FibreChannel
- I2O controller. You can use both the SCSI and Block OSM together if
- you wish. To access a RAID array, you must use the Block OSM driver.
- But you could use the SCSI OSM driver to monitor the single disks.
-
- To compile this support as a module, choose M here: the
- module will be called i2o_scsi.
-
-config I2O_PROC
- tristate "I2O /proc support"
- ---help---
- If you say Y here and to "/proc file system support", you will be
- able to read I2O related information from the virtual directory
- /proc/i2o.
-
- To compile this support as a module, choose M here: the
- module will be called i2o_proc.
-
-endif # I2O
+++ /dev/null
-#
-# Makefile for the kernel I2O OSM.
-#
-# Note : at this point, these files are compiled on all systems.
-# 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 memory.o
-i2o_bus-y += bus-osm.o
-i2o_config-y += config-osm.o
-obj-$(CONFIG_I2O) += i2o_core.o
-obj-$(CONFIG_I2O_CONFIG)+= i2o_config.o
-obj-$(CONFIG_I2O_BUS) += i2o_bus.o
-obj-$(CONFIG_I2O_BLOCK) += i2o_block.o
-obj-$(CONFIG_I2O_SCSI) += i2o_scsi.o
-obj-$(CONFIG_I2O_PROC) += i2o_proc.o
+++ /dev/null
-
- 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 Häkkinen, University of Helsinki Finland
- LAN OSM code
- /Proc interface to LAN class
- Bug fixes
- Core code extensions
-
-Taneli Vähäkangas, 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 Commission
- 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)
+++ /dev/null
-
-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. Setting 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 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 *(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 retrieved. 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 appropriately:
-
- 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 appropriately:
-
- 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 appropriately:
-
- 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 appropriately:
-
- 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 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 *(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
+++ /dev/null
-/*
- * Bus Adapter OSM
- *
- * Copyright (C) 2005 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>
-
-#define OSM_NAME "bus-osm"
-#define OSM_VERSION "1.317"
-#define OSM_DESCRIPTION "I2O Bus Adapter OSM"
-
-static struct i2o_driver i2o_bus_driver;
-
-/* Bus OSM class handling definition */
-static struct i2o_class_id i2o_bus_class_id[] = {
- {I2O_CLASS_BUS_ADAPTER},
- {I2O_CLASS_END}
-};
-
-/**
- * i2o_bus_scan - Scan the bus for new devices
- * @dev: I2O device of the bus, which should be scanned
- *
- * Scans the bus dev for new / removed devices. After the scan a new LCT
- * will be fetched automatically.
- *
- * Returns 0 on success or negative error code on failure.
- */
-static int i2o_bus_scan(struct i2o_device *dev)
-{
- struct i2o_message *msg;
-
- msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return -ETIMEDOUT;
-
- msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_BUS_SCAN << 24 | HOST_TID << 12 | dev->lct_data.
- tid);
-
- return i2o_msg_post_wait(dev->iop, msg, 60);
-};
-
-/**
- * i2o_bus_store_scan - Scan the I2O Bus Adapter
- * @d: device which should be scanned
- * @attr: device_attribute
- * @buf: output buffer
- * @count: buffer size
- *
- * Returns count.
- */
-static ssize_t i2o_bus_store_scan(struct device *d,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct i2o_device *i2o_dev = to_i2o_device(d);
- int rc;
-
- if ((rc = i2o_bus_scan(i2o_dev)))
- osm_warn("bus scan failed %d\n", rc);
-
- return count;
-}
-
-/* Bus Adapter OSM device attributes */
-static DEVICE_ATTR(scan, S_IWUSR, NULL, i2o_bus_store_scan);
-
-/**
- * i2o_bus_probe - verify if dev is a I2O Bus Adapter device and install it
- * @dev: device to verify if it is a I2O Bus Adapter device
- *
- * Because we want all Bus Adapters always return 0.
- * Except when we fail. Then we are sad.
- *
- * Returns 0, except when we fail to excel.
- */
-static int i2o_bus_probe(struct device *dev)
-{
- struct i2o_device *i2o_dev = to_i2o_device(get_device(dev));
- int rc;
-
- rc = device_create_file(dev, &dev_attr_scan);
- if (rc)
- goto err_out;
-
- osm_info("device added (TID: %03x)\n", i2o_dev->lct_data.tid);
-
- return 0;
-
-err_out:
- put_device(dev);
- return rc;
-};
-
-/**
- * i2o_bus_remove - remove the I2O Bus Adapter device from the system again
- * @dev: I2O Bus Adapter device which should be removed
- *
- * Always returns 0.
- */
-static int i2o_bus_remove(struct device *dev)
-{
- struct i2o_device *i2o_dev = to_i2o_device(dev);
-
- device_remove_file(dev, &dev_attr_scan);
-
- put_device(dev);
-
- osm_info("device removed (TID: %03x)\n", i2o_dev->lct_data.tid);
-
- return 0;
-};
-
-/* Bus Adapter OSM driver struct */
-static struct i2o_driver i2o_bus_driver = {
- .name = OSM_NAME,
- .classes = i2o_bus_class_id,
- .driver = {
- .probe = i2o_bus_probe,
- .remove = i2o_bus_remove,
- },
-};
-
-/**
- * i2o_bus_init - Bus Adapter OSM initialization function
- *
- * Only register the Bus Adapter OSM in the I2O core.
- *
- * Returns 0 on success or negative error code on failure.
- */
-static int __init i2o_bus_init(void)
-{
- int rc;
-
- printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
-
- /* Register Bus Adapter OSM into I2O core */
- rc = i2o_driver_register(&i2o_bus_driver);
- if (rc) {
- osm_err("Could not register Bus Adapter OSM\n");
- return rc;
- }
-
- return 0;
-};
-
-/**
- * i2o_bus_exit - Bus Adapter OSM exit function
- *
- * Unregisters Bus Adapter OSM from I2O core.
- */
-static void __exit i2o_bus_exit(void)
-{
- i2o_driver_unregister(&i2o_bus_driver);
-};
-
-MODULE_AUTHOR("Markus Lidel <Markus.Lidel@shadowconnect.com>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(OSM_DESCRIPTION);
-MODULE_VERSION(OSM_VERSION);
-
-module_init(i2o_bus_init);
-module_exit(i2o_bus_exit);
+++ /dev/null
-/*
- * Configuration OSM
- *
- * Copyright (C) 2005 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>
-#include <linux/dcache.h>
-#include <linux/namei.h>
-#include <linux/fs.h>
-
-#include <asm/uaccess.h>
-
-#define OSM_NAME "config-osm"
-#define OSM_VERSION "1.323"
-#define OSM_DESCRIPTION "I2O Configuration OSM"
-
-/* access mode user rw */
-#define S_IWRSR (S_IRUSR | S_IWUSR)
-
-static struct i2o_driver i2o_config_driver;
-
-/* Config OSM driver struct */
-static struct i2o_driver i2o_config_driver = {
- .name = OSM_NAME,
-};
-
-#ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
-#include "i2o_config.c"
-#endif
-
-/**
- * i2o_config_init - Configuration OSM initialization function
- *
- * Registers Configuration OSM in the I2O core and if old ioctl's are
- * compiled in initialize them.
- *
- * Returns 0 on success or negative error code on failure.
- */
-static int __init i2o_config_init(void)
-{
- printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
-
- if (i2o_driver_register(&i2o_config_driver)) {
- osm_err("handler register failed.\n");
- return -EBUSY;
- }
-#ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
- if (i2o_config_old_init()) {
- osm_err("old config handler initialization failed\n");
- i2o_driver_unregister(&i2o_config_driver);
- return -EBUSY;
- }
-#endif
-
- return 0;
-}
-
-/**
- * i2o_config_exit - Configuration OSM exit function
- *
- * If old ioctl's are compiled in exit remove them and unregisters
- * Configuration OSM from I2O core.
- */
-static void i2o_config_exit(void)
-{
-#ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
- i2o_config_old_exit();
-#endif
-
- i2o_driver_unregister(&i2o_config_driver);
-}
-
-MODULE_AUTHOR("Markus Lidel <Markus.Lidel@shadowconnect.com>");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(OSM_DESCRIPTION);
-MODULE_VERSION(OSM_VERSION);
-
-module_init(i2o_config_init);
-module_exit(i2o_config_exit);
+++ /dev/null
-/*
- * I2O core internal declarations
- *
- * Copyright (C) 2005 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.
- */
-
-/* Exec-OSM */
-extern struct i2o_driver i2o_exec_driver;
-extern int i2o_exec_lct_get(struct i2o_controller *);
-
-extern int __init i2o_exec_init(void);
-extern void i2o_exec_exit(void);
-
-/* driver */
-extern struct bus_type i2o_bus_type;
-
-extern int i2o_driver_dispatch(struct i2o_controller *, u32);
-
-extern int __init i2o_driver_init(void);
-extern void i2o_driver_exit(void);
-
-/* PCI */
-extern int __init i2o_pci_init(void);
-extern void __exit i2o_pci_exit(void);
-
-/* device */
-extern const struct attribute_group *i2o_device_groups[];
-
-extern void i2o_device_remove(struct i2o_device *);
-extern int i2o_device_parse_lct(struct i2o_controller *);
-
-int i2o_parm_issue(struct i2o_device *i2o_dev, int cmd, void *oplist,
- int oplen, void *reslist, int reslen);
-
-/* IOP */
-extern struct i2o_controller *i2o_iop_alloc(void);
-
-/**
- * i2o_iop_free - Free the i2o_controller struct
- * @c: I2O controller to free
- */
-static inline void i2o_iop_free(struct i2o_controller *c)
-{
- i2o_pool_free(&c->in_msg);
- kfree(c);
-}
-
-extern int i2o_iop_add(struct i2o_controller *);
-extern void i2o_iop_remove(struct i2o_controller *);
-
-/* control registers relative to c->base */
-#define I2O_IRQ_STATUS 0x30
-#define I2O_IRQ_MASK 0x34
-#define I2O_IN_PORT 0x40
-#define I2O_OUT_PORT 0x44
-
-/* Motorola/Freescale specific register offset */
-#define I2O_MOTOROLA_PORT_OFFSET 0x10400
-
-#define I2O_IRQ_OUTBOUND_POST 0x00000008
+++ /dev/null
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/i2o.h>
-
-static void i2o_report_util_cmd(u8 cmd);
-static void i2o_report_exec_cmd(u8 cmd);
-static void i2o_report_fail_status(u8 req_status, u32 * msg);
-static void i2o_report_common_status(u8 req_status);
-static void i2o_report_common_dsc(u16 detailed_status);
-
-/*
- * 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;
-
- 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)
-{
-#ifdef DEBUG
- u32 *msg = (u32 *) m;
- 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
-}
-
-/*
- * Used for error reporting/debugging purposes.
- * Following fail status are common to all classes.
- * The preserved message must be handled in the reply handler.
- */
-static 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\n", (msg[4] >> 16) & 0xFF);
- if (msg[4] & (1 << 16))
- printk(KERN_DEBUG "(FormatError), "
- "this msg can never be delivered/processed.\n");
- if (msg[4] & (1 << 17))
- printk(KERN_DEBUG "(PathError), "
- "this msg can no longer be delivered/processed.\n");
- if (msg[4] & (1 << 18))
- printk(KERN_DEBUG "(PathState), "
- "the system state does not allow delivery.\n");
- if (msg[4] & (1 << 19))
- printk(KERN_DEBUG
- "(Congestion), resources temporarily not available;"
- "do not retry immediately.\n");
-}
-
-/*
- * Used for error reporting/debugging purposes.
- * Following reply status are common to all classes.
- */
-static 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_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_message);
+++ /dev/null
-/*
- * 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>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include "core.h"
-
-/**
- * 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;
-
- msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(cmd << 24 | HOST_TID << 12 | dev->lct_data.tid);
- msg->body[0] = cpu_to_le32(type);
-
- return i2o_msg_post_wait(dev->iop, msg, 60);
-}
-
-/**
- * i2o_device_claim - claim a device for use by an OSM
- * @dev: I2O device to claim
- *
- * Do the leg work to assign a device to a given OSM. If the claim succeeds,
- * the owner is the primary. 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;
-
- mutex_lock(&dev->lock);
-
- rc = i2o_device_issue_claim(dev, I2O_CMD_UTIL_CLAIM, I2O_CLAIM_PRIMARY);
- if (!rc)
- pr_debug("i2o: claim of device %d succeeded\n",
- dev->lct_data.tid);
- else
- pr_debug("i2o: claim of device %d failed %d\n",
- dev->lct_data.tid, rc);
-
- mutex_unlock(&dev->lock);
-
- return rc;
-}
-
-/**
- * i2o_device_claim_release - release a device that the OSM is using
- * @dev: device to release
- *
- * 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;
-
- mutex_lock(&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;
-
- ssleep(1);
- }
-
- if (!rc)
- pr_debug("i2o: claim release of device %d succeeded\n",
- dev->lct_data.tid);
- else
- pr_debug("i2o: claim release of device %d failed %d\n",
- dev->lct_data.tid, rc);
-
- mutex_unlock(&dev->lock);
-
- return rc;
-}
-
-/**
- * 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);
-
- pr_debug("i2o: device %s released\n", dev_name(dev));
-
- kfree(i2o_dev);
-}
-
-/**
- * class_id_show - Displays class id of I2O device
- * @dev: device of which the class id should be displayed
- * @attr: pointer to device attribute
- * @buf: buffer into which the class id should be printed
- *
- * Returns the number of bytes which are printed into the buffer.
- */
-static ssize_t class_id_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct i2o_device *i2o_dev = to_i2o_device(dev);
-
- sprintf(buf, "0x%03x\n", i2o_dev->lct_data.class_id);
- return strlen(buf) + 1;
-}
-static DEVICE_ATTR_RO(class_id);
-
-/**
- * tid_show - Displays TID of I2O device
- * @dev: device of which the TID should be displayed
- * @attr: pointer to device attribute
- * @buf: buffer into which the TID should be printed
- *
- * Returns the number of bytes which are printed into the buffer.
- */
-static ssize_t tid_show(struct device *dev, struct device_attribute *attr,
- char *buf)
-{
- struct i2o_device *i2o_dev = to_i2o_device(dev);
-
- sprintf(buf, "0x%03x\n", i2o_dev->lct_data.tid);
- return strlen(buf) + 1;
-}
-static DEVICE_ATTR_RO(tid);
-
-/* I2O device attributes */
-static struct attribute *i2o_device_attrs[] = {
- &dev_attr_class_id.attr,
- &dev_attr_tid.attr,
- NULL,
-};
-
-static const struct attribute_group i2o_device_group = {
- .attrs = i2o_device_attrs,
-};
-
-const struct attribute_group *i2o_device_groups[] = {
- &i2o_device_group,
- NULL,
-};
-
-/**
- * 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 = kzalloc(sizeof(*dev), GFP_KERNEL);
- if (!dev)
- return ERR_PTR(-ENOMEM);
-
- INIT_LIST_HEAD(&dev->list);
- mutex_init(&dev->lock);
-
- dev->device.bus = &i2o_bus_type;
- dev->device.release = &i2o_device_release;
-
- return dev;
-}
-
-/**
- * i2o_device_add - allocate a new I2O device and add it to the IOP
- * @c: I2O controller that 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 zero on success, or a -ve errno.
- */
-static int i2o_device_add(struct i2o_controller *c, i2o_lct_entry *entry)
-{
- struct i2o_device *i2o_dev, *tmp;
- int rc;
-
- i2o_dev = i2o_device_alloc();
- if (IS_ERR(i2o_dev)) {
- printk(KERN_ERR "i2o: unable to allocate i2o device\n");
- return PTR_ERR(i2o_dev);
- }
-
- i2o_dev->lct_data = *entry;
-
- dev_set_name(&i2o_dev->device, "%d:%03x", c->unit,
- i2o_dev->lct_data.tid);
-
- i2o_dev->iop = c;
- i2o_dev->device.parent = &c->device;
-
- rc = device_register(&i2o_dev->device);
- if (rc)
- goto err;
-
- list_add_tail(&i2o_dev->list, &c->devices);
-
- /* create user entries for this device */
- tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
- if (tmp && (tmp != i2o_dev)) {
- rc = sysfs_create_link(&i2o_dev->device.kobj,
- &tmp->device.kobj, "user");
- if (rc)
- goto unreg_dev;
- }
-
- /* create user entries referring to this device */
- list_for_each_entry(tmp, &c->devices, list)
- if ((tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
- && (tmp != i2o_dev)) {
- rc = sysfs_create_link(&tmp->device.kobj,
- &i2o_dev->device.kobj, "user");
- if (rc)
- goto rmlink1;
- }
-
- /* create parent entries for this device */
- tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
- if (tmp && (tmp != i2o_dev)) {
- rc = sysfs_create_link(&i2o_dev->device.kobj,
- &tmp->device.kobj, "parent");
- if (rc)
- goto rmlink1;
- }
-
- /* create parent entries referring to this device */
- list_for_each_entry(tmp, &c->devices, list)
- if ((tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
- && (tmp != i2o_dev)) {
- rc = sysfs_create_link(&tmp->device.kobj,
- &i2o_dev->device.kobj, "parent");
- if (rc)
- goto rmlink2;
- }
-
- i2o_driver_notify_device_add_all(i2o_dev);
-
- pr_debug("i2o: device %s added\n", dev_name(&i2o_dev->device));
-
- return 0;
-
-rmlink2:
- /* If link creating failed halfway, we loop whole list to cleanup.
- * And we don't care wrong removing of link, because sysfs_remove_link
- * will take care of it.
- */
- 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");
- }
- sysfs_remove_link(&i2o_dev->device.kobj, "parent");
-rmlink1:
- list_for_each_entry(tmp, &c->devices, list)
- if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
- sysfs_remove_link(&tmp->device.kobj, "user");
- sysfs_remove_link(&i2o_dev->device.kobj, "user");
-unreg_dev:
- list_del(&i2o_dev->list);
- device_unregister(&i2o_dev->device);
-err:
- kfree(i2o_dev);
- return rc;
-}
-
-/**
- * i2o_device_remove - remove an I2O device from the I2O core
- * @i2o_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)
-{
- struct i2o_device *tmp;
- struct i2o_controller *c = i2o_dev->iop;
-
- i2o_driver_notify_device_remove_all(i2o_dev);
-
- 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");
- }
- list_del(&i2o_dev->list);
-
- device_unregister(&i2o_dev->device);
-}
-
-/**
- * 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;
- u32 *dlct = c->dlct.virt;
- int max = 0, i = 0;
- u16 table_size;
- u32 buf;
-
- mutex_lock(&c->lct_lock);
-
- kfree(c->lct);
-
- buf = le32_to_cpu(*dlct++);
- table_size = buf & 0xffff;
-
- lct = c->lct = kmalloc(table_size * 4, GFP_KERNEL);
- if (!lct) {
- mutex_unlock(&c->lct_lock);
- return -ENOMEM;
- }
-
- lct->lct_ver = buf >> 28;
- lct->boot_tid = buf >> 16 & 0xfff;
- lct->table_size = table_size;
- lct->change_ind = le32_to_cpu(*dlct++);
- lct->iop_flags = le32_to_cpu(*dlct++);
-
- table_size -= 3;
-
- pr_debug("%s: LCT has %d entries (LCT size: %d)\n", c->name, max,
- lct->table_size);
-
- while (table_size > 0) {
- i2o_lct_entry *entry = &lct->lct_entry[max];
- int found = 0;
-
- buf = le32_to_cpu(*dlct++);
- entry->entry_size = buf & 0xffff;
- entry->tid = buf >> 16 & 0xfff;
-
- entry->change_ind = le32_to_cpu(*dlct++);
- entry->device_flags = le32_to_cpu(*dlct++);
-
- buf = le32_to_cpu(*dlct++);
- entry->class_id = buf & 0xfff;
- entry->version = buf >> 12 & 0xf;
- entry->vendor_id = buf >> 16;
-
- entry->sub_class = le32_to_cpu(*dlct++);
-
- buf = le32_to_cpu(*dlct++);
- entry->user_tid = buf & 0xfff;
- entry->parent_tid = buf >> 12 & 0xfff;
- entry->bios_info = buf >> 24;
-
- memcpy(&entry->identity_tag, dlct, 8);
- dlct += 2;
-
- entry->event_capabilities = le32_to_cpu(*dlct++);
-
- /* add new devices, which are new in the LCT */
- list_for_each_entry_safe(dev, tmp, &c->devices, list) {
- if (entry->tid == dev->lct_data.tid) {
- found = 1;
- break;
- }
- }
-
- if (!found)
- i2o_device_add(c, entry);
-
- table_size -= 9;
- max++;
- }
-
- /* 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);
- }
-
- mutex_unlock(&c->lct_lock);
-
- return 0;
-}
-
-/*
- * 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;
- 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))
- return -ENOMEM;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg)) {
- i2o_dma_free(dev, &res);
- return PTR_ERR(msg);
- }
-
- i = 0;
- msg->u.head[1] =
- cpu_to_le32(cmd << 24 | HOST_TID << 12 | i2o_dev->lct_data.tid);
- msg->body[i++] = cpu_to_le32(0x00000000);
- msg->body[i++] = cpu_to_le32(0x4C000000 | oplen); /* OperationList */
- memcpy(&msg->body[i], oplist, oplen);
- i += (oplen / 4 + (oplen % 4 ? 1 : 0));
- msg->body[i++] = cpu_to_le32(0xD0000000 | res.len); /* ResultList */
- msg->body[i++] = cpu_to_le32(res.phys);
-
- msg->u.head[0] =
- cpu_to_le32(I2O_MESSAGE_SIZE(i + sizeof(struct i2o_message) / 4) |
- SGL_OFFSET_5);
-
- rc = i2o_msg_post_wait_mem(c, msg, 10, &res);
-
- /* This only looks like a memory leak - don't "fix" it. */
- if (rc == -ETIMEDOUT)
- return rc;
-
- memcpy(reslist, res.virt, res.len);
- i2o_dma_free(dev, &res);
-
- return rc;
-}
-
-/*
- * 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)
-{
- u32 opblk[] = { cpu_to_le32(0x00000001),
- cpu_to_le32((u16) group << 16 | I2O_PARAMS_FIELD_GET),
- cpu_to_le32((s16) field << 16 | 0x00000001)
- };
- u8 *resblk; /* 8 bytes for header */
- int rc;
-
- resblk = kmalloc(buflen + 8, GFP_KERNEL);
- if (!resblk)
- return -ENOMEM;
-
- rc = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
- sizeof(opblk), resblk, buflen + 8);
-
- memcpy(buf, resblk + 8, buflen); /* cut off header */
-
- kfree(resblk);
-
- return rc;
-}
-
-/*
- * 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;
-}
-
-EXPORT_SYMBOL(i2o_device_claim);
-EXPORT_SYMBOL(i2o_device_claim_release);
-EXPORT_SYMBOL(i2o_parm_field_get);
-EXPORT_SYMBOL(i2o_parm_table_get);
-EXPORT_SYMBOL(i2o_parm_issue);
+++ /dev/null
-/*
- * 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>
-#include <linux/workqueue.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include "core.h"
-
-#define OSM_NAME "i2o"
-
-/* max_drivers - Maximum I2O drivers (OSMs) which could be registered */
-static 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 drivers lock and array */
-static spinlock_t i2o_drivers_lock;
-static struct i2o_driver **i2o_drivers;
-
-/**
- * i2o_bus_match - Tell if I2O device class id matches 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 bus type */
-struct bus_type i2o_bus_type = {
- .name = "i2o",
- .match = i2o_bus_match,
- .dev_groups = i2o_device_groups,
-};
-
-/**
- * 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)
-{
- struct i2o_controller *c;
- int i;
- int rc = 0;
- unsigned long flags;
-
- osm_debug("Register driver %s\n", drv->name);
-
- if (drv->event) {
- drv->event_queue = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1,
- drv->name);
- if (!drv->event_queue) {
- osm_err("Could not initialize event queue for driver "
- "%s\n", drv->name);
- return -EFAULT;
- }
- osm_debug("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) {
- osm_err("too many drivers registered, increase "
- "max_drivers\n");
- spin_unlock_irqrestore(&i2o_drivers_lock, flags);
- rc = -EFAULT;
- goto out;
- }
-
- drv->context = i;
- i2o_drivers[i] = drv;
-
- spin_unlock_irqrestore(&i2o_drivers_lock, flags);
-
- osm_debug("driver %s gets context id %d\n", drv->name, drv->context);
-
- list_for_each_entry(c, &i2o_controllers, list) {
- struct i2o_device *i2o_dev;
-
- i2o_driver_notify_controller_add(drv, c);
- list_for_each_entry(i2o_dev, &c->devices, list)
- i2o_driver_notify_device_add(drv, i2o_dev);
- }
-
- rc = driver_register(&drv->driver);
- if (rc)
- goto out;
-
- return 0;
-out:
- if (drv->event_queue) {
- destroy_workqueue(drv->event_queue);
- drv->event_queue = NULL;
- }
-
- 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)
-{
- struct i2o_controller *c;
- unsigned long flags;
-
- osm_debug("unregister driver %s\n", drv->name);
-
- driver_unregister(&drv->driver);
-
- list_for_each_entry(c, &i2o_controllers, list) {
- struct i2o_device *i2o_dev;
-
- list_for_each_entry(i2o_dev, &c->devices, list)
- i2o_driver_notify_device_remove(drv, i2o_dev);
-
- i2o_driver_notify_controller_remove(drv, c);
- }
-
- 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;
- osm_debug("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
- *
- * 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_driver *drv;
- struct i2o_message *msg = i2o_msg_out_to_virt(c, m);
- u32 context = le32_to_cpu(msg->u.s.icntxt);
- unsigned long flags;
-
- if (unlikely(context >= i2o_max_drivers)) {
- osm_warn("%s: Spurious reply to unknown driver %d\n", c->name,
- context);
- return -EIO;
- }
-
- spin_lock_irqsave(&i2o_drivers_lock, flags);
- drv = i2o_drivers[context];
- spin_unlock_irqrestore(&i2o_drivers_lock, flags);
-
- if (unlikely(!drv)) {
- osm_warn("%s: Spurious reply to unknown driver %d\n", c->name,
- context);
- return -EIO;
- }
-
- if ((le32_to_cpu(msg->u.head[1]) >> 24) == I2O_CMD_UTIL_EVT_REGISTER) {
- struct i2o_device *dev, *tmp;
- struct i2o_event *evt;
- u16 size;
- u16 tid = le32_to_cpu(msg->u.head[1]) & 0xfff;
-
- osm_debug("event received from device %d\n", tid);
-
- if (!drv->event)
- return -EIO;
-
- /* cut of header from message size (in 32-bit words) */
- size = (le32_to_cpu(msg->u.head[0]) >> 16) - 5;
-
- evt = kzalloc(size * 4 + sizeof(*evt), GFP_ATOMIC);
- if (!evt)
- return -ENOMEM;
-
- evt->size = size;
- evt->tcntxt = le32_to_cpu(msg->u.s.tcntxt);
- evt->event_indicator = le32_to_cpu(msg->body[0]);
- memcpy(&evt->data, &msg->body[1], size * 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, drv->event);
- queue_work(drv->event_queue, &evt->work);
- return 1;
- }
-
- if (unlikely(!drv->reply)) {
- osm_debug("%s: Reply to driver %s, but no reply function"
- " defined!\n", c->name, drv->name);
- return -EIO;
- }
-
- return drv->reply(c, m, msg);
-}
-
-/**
- * i2o_driver_notify_controller_add_all - Send notify of added controller
- * @c: newly added controller
- *
- * Send notifications to all registered drivers that a new controller was
- * added.
- */
-void i2o_driver_notify_controller_add_all(struct i2o_controller *c)
-{
- int i;
- struct i2o_driver *drv;
-
- for (i = 0; i < i2o_max_drivers; i++) {
- drv = i2o_drivers[i];
-
- if (drv)
- i2o_driver_notify_controller_add(drv, c);
- }
-}
-
-/**
- * i2o_driver_notify_controller_remove_all - Send notify of removed controller
- * @c: controller that is being removed
- *
- * Send notifications to all registered drivers that a controller was
- * removed.
- */
-void i2o_driver_notify_controller_remove_all(struct i2o_controller *c)
-{
- int i;
- struct i2o_driver *drv;
-
- for (i = 0; i < i2o_max_drivers; i++) {
- drv = i2o_drivers[i];
-
- if (drv)
- i2o_driver_notify_controller_remove(drv, c);
- }
-}
-
-/**
- * i2o_driver_notify_device_add_all - Send notify of added device
- * @i2o_dev: newly added I2O device
- *
- * Send notifications to all registered drivers that a device was added.
- */
-void i2o_driver_notify_device_add_all(struct i2o_device *i2o_dev)
-{
- int i;
- struct i2o_driver *drv;
-
- for (i = 0; i < i2o_max_drivers; i++) {
- drv = i2o_drivers[i];
-
- if (drv)
- i2o_driver_notify_device_add(drv, i2o_dev);
- }
-}
-
-/**
- * i2o_driver_notify_device_remove_all - Send notify of removed device
- * @i2o_dev: device that is being removed
- *
- * Send notifications to all registered drivers that a device was removed.
- */
-void i2o_driver_notify_device_remove_all(struct i2o_device *i2o_dev)
-{
- int i;
- struct i2o_driver *drv;
-
- for (i = 0; i < i2o_max_drivers; i++) {
- drv = i2o_drivers[i];
-
- if (drv)
- i2o_driver_notify_device_remove(drv, i2o_dev);
- }
-}
-
-/**
- * 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;
-
- spin_lock_init(&i2o_drivers_lock);
-
- if ((i2o_max_drivers < 2) || (i2o_max_drivers > 64)) {
- osm_warn("max_drivers set to %d, but must be >=2 and <= 64\n",
- i2o_max_drivers);
- i2o_max_drivers = I2O_MAX_DRIVERS;
- }
- osm_info("max drivers = %d\n", i2o_max_drivers);
-
- i2o_drivers =
- kcalloc(i2o_max_drivers, sizeof(*i2o_drivers), GFP_KERNEL);
- if (!i2o_drivers)
- return -ENOMEM;
-
- 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 frees driver array.
- */
-void i2o_driver_exit(void)
-{
- bus_unregister(&i2o_bus_type);
- kfree(i2o_drivers);
-};
-
-EXPORT_SYMBOL(i2o_driver_register);
-EXPORT_SYMBOL(i2o_driver_unregister);
-EXPORT_SYMBOL(i2o_driver_notify_controller_add_all);
-EXPORT_SYMBOL(i2o_driver_notify_controller_remove_all);
-EXPORT_SYMBOL(i2o_driver_notify_device_add_all);
-EXPORT_SYMBOL(i2o_driver_notify_device_remove_all);
+++ /dev/null
-/*
- * 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 Sievänen <Juha.Sievanen@cs.Helsinki.FI>
- * Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
- * Deepak Saxena <deepak@plexity.net>
- * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
- * Alan Cox <alan@lxorguk.ukuu.org.uk>:
- * 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>
-#include <linux/delay.h>
-#include <linux/workqueue.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/sched.h> /* wait_event_interruptible_timeout() needs this */
-#include <asm/param.h> /* HZ */
-#include "core.h"
-
-#define OSM_NAME "exec-osm"
-
-struct i2o_driver i2o_exec_driver;
-
-/* 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 */
- spinlock_t lock; /* lock before modifying */
-};
-
-/* Work struct needed to handle LCT NOTIFY replies */
-struct i2o_exec_lct_notify_work {
- struct work_struct work; /* work struct */
- struct i2o_controller *c; /* controller on which the LCT NOTIFY
- was received */
-};
-
-/* Exec OSM class handling definition */
-static struct i2o_class_id i2o_exec_class_id[] = {
- {I2O_CLASS_EXECUTIVE},
- {I2O_CLASS_END}
-};
-
-/**
- * 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 = kzalloc(sizeof(*wait), GFP_KERNEL);
- if (!wait)
- return NULL;
-
- INIT_LIST_HEAD(&wait->list);
- spin_lock_init(&wait->lock);
-
- return wait;
-};
-
-/**
- * i2o_exec_wait_free - Free an i2o_exec_wait struct
- * @wait: I2O wait data which should be cleaned up
- */
-static void i2o_exec_wait_free(struct i2o_exec_wait *wait)
-{
- kfree(wait);
-};
-
-/**
- * i2o_msg_post_wait_mem - Post and wait a message with DMA buffers
- * @c: controller
- * @msg: 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, negative error code on timeout or positive error
- * code from reply.
- */
-int i2o_msg_post_wait_mem(struct i2o_controller *c, struct i2o_message *msg,
- unsigned long timeout, struct i2o_dma *dma)
-{
- DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
- struct i2o_exec_wait *wait;
- static u32 tcntxt = 0x80000000;
- unsigned long flags;
- int rc = 0;
-
- wait = i2o_exec_wait_alloc();
- if (!wait) {
- i2o_msg_nop(c, msg);
- return -ENOMEM;
- }
-
- if (tcntxt == 0xffffffff)
- tcntxt = 0x80000000;
-
- if (dma)
- wait->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.
- */
- msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
- wait->tcntxt = tcntxt++;
- msg->u.s.tcntxt = cpu_to_le32(wait->tcntxt);
-
- wait->wq = &wq;
- /*
- * we add elements to the head, because if a entry in the list will
- * never be removed, we have to iterate over it every time
- */
- list_add(&wait->list, &i2o_exec_wait_list);
-
- /*
- * 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, msg);
-
- wait_event_interruptible_timeout(wq, wait->complete, timeout * HZ);
-
- spin_lock_irqsave(&wait->lock, flags);
-
- wait->wq = NULL;
-
- if (wait->complete)
- rc = le32_to_cpu(wait->msg->body[0]) >> 24;
- 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;
- }
-
- spin_unlock_irqrestore(&wait->lock, flags);
-
- if (rc != -ETIMEDOUT) {
- i2o_flush_reply(c, wait->m);
- i2o_exec_wait_free(wait);
- }
-
- 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
- * @context: transaction context of request
- *
- * 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, u32 context)
-{
- struct i2o_exec_wait *wait, *tmp;
- unsigned long flags;
- int rc = 1;
-
- /*
- * 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.
- */
- list_for_each_entry_safe(wait, tmp, &i2o_exec_wait_list, list) {
- if (wait->tcntxt == context) {
- spin_lock_irqsave(&wait->lock, flags);
-
- list_del(&wait->list);
-
- wait->m = m;
- wait->msg = msg;
- wait->complete = 1;
-
- if (wait->wq)
- rc = 0;
- else
- rc = -1;
-
- spin_unlock_irqrestore(&wait->lock, flags);
-
- if (rc) {
- struct device *dev;
-
- dev = &c->pdev->dev;
-
- pr_debug("%s: timedout reply received!\n",
- c->name);
- i2o_dma_free(dev, &wait->dma);
- i2o_exec_wait_free(wait);
- } else
- wake_up_interruptible(wait->wq);
-
- return rc;
- }
- }
-
- osm_warn("%s: Bogus reply in POST WAIT (tr-context: %08x)!\n", c->name,
- context);
-
- return -1;
-};
-
-/**
- * i2o_exec_show_vendor_id - Displays Vendor ID of controller
- * @d: device of which the Vendor ID should be displayed
- * @attr: device_attribute to display
- * @buf: buffer into which the Vendor ID should be printed
- *
- * Returns number of bytes printed into buffer.
- */
-static ssize_t i2o_exec_show_vendor_id(struct device *d,
- struct device_attribute *attr, char *buf)
-{
- struct i2o_device *dev = to_i2o_device(d);
- u16 id;
-
- if (!i2o_parm_field_get(dev, 0x0000, 0, &id, 2)) {
- sprintf(buf, "0x%04x", le16_to_cpu(id));
- return strlen(buf) + 1;
- }
-
- return 0;
-};
-
-/**
- * i2o_exec_show_product_id - Displays Product ID of controller
- * @d: device of which the Product ID should be displayed
- * @attr: device_attribute to display
- * @buf: buffer into which the Product ID should be printed
- *
- * Returns number of bytes printed into buffer.
- */
-static ssize_t i2o_exec_show_product_id(struct device *d,
- struct device_attribute *attr,
- char *buf)
-{
- struct i2o_device *dev = to_i2o_device(d);
- u16 id;
-
- if (!i2o_parm_field_get(dev, 0x0000, 1, &id, 2)) {
- sprintf(buf, "0x%04x", le16_to_cpu(id));
- return strlen(buf) + 1;
- }
-
- return 0;
-};
-
-/* Exec-OSM device attributes */
-static DEVICE_ATTR(vendor_id, S_IRUGO, i2o_exec_show_vendor_id, NULL);
-static DEVICE_ATTR(product_id, S_IRUGO, i2o_exec_show_product_id, NULL);
-
-/**
- * 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);
- int rc;
-
- rc = i2o_event_register(i2o_dev, &i2o_exec_driver, 0, 0xffffffff);
- if (rc) goto err_out;
-
- rc = device_create_file(dev, &dev_attr_vendor_id);
- if (rc) goto err_evtreg;
- rc = device_create_file(dev, &dev_attr_product_id);
- if (rc) goto err_vid;
-
- i2o_dev->iop->exec = i2o_dev;
-
- return 0;
-
-err_vid:
- device_remove_file(dev, &dev_attr_vendor_id);
-err_evtreg:
- i2o_event_register(to_i2o_device(dev), &i2o_exec_driver, 0, 0);
-err_out:
- return rc;
-};
-
-/**
- * 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)
-{
- device_remove_file(dev, &dev_attr_product_id);
- device_remove_file(dev, &dev_attr_vendor_id);
-
- i2o_event_register(to_i2o_device(dev), &i2o_exec_driver, 0, 0);
-
- return 0;
-};
-
-#ifdef CONFIG_I2O_LCT_NOTIFY_ON_CHANGES
-/**
- * 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.
- */
-static 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;
-
- mutex_lock(&c->lct_lock);
-
- dev = &c->pdev->dev;
-
- if (i2o_dma_realloc(dev, &c->dlct,
- le32_to_cpu(sb->expected_lct_size))) {
- mutex_unlock(&c->lct_lock);
- return -ENOMEM;
- }
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg)) {
- mutex_unlock(&c->lct_lock);
- return PTR_ERR(msg);
- }
-
- msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6);
- msg->u.head[1] = cpu_to_le32(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 |
- ADAPTER_TID);
- msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
- msg->u.s.tcntxt = cpu_to_le32(0x00000000);
- msg->body[0] = cpu_to_le32(0xffffffff);
- msg->body[1] = cpu_to_le32(change_ind);
- msg->body[2] = cpu_to_le32(0xd0000000 | c->dlct.len);
- msg->body[3] = cpu_to_le32(c->dlct.phys);
-
- i2o_msg_post(c, msg);
-
- mutex_unlock(&c->lct_lock);
-
- return 0;
-}
-#endif
-
-/**
- * i2o_exec_lct_modified - Called on LCT NOTIFY reply
- * @_work: work struct for a specific controller
- *
- * 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, otherwise send LCT NOTIFY to get informed on next LCT change.
- */
-static void i2o_exec_lct_modified(struct work_struct *_work)
-{
- struct i2o_exec_lct_notify_work *work =
- container_of(_work, struct i2o_exec_lct_notify_work, work);
- u32 change_ind = 0;
- struct i2o_controller *c = work->c;
-
- kfree(work);
-
- if (i2o_device_parse_lct(c) != -EAGAIN)
- change_ind = c->lct->change_ind + 1;
-
-#ifdef CONFIG_I2O_LCT_NOTIFY_ON_CHANGES
- i2o_exec_lct_notify(c, change_ind);
-#endif
-};
-
-/**
- * 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)
-{
- u32 context;
-
- if (le32_to_cpu(msg->u.head[0]) & MSG_FAIL) {
- struct i2o_message __iomem *pmsg;
- u32 pm;
-
- /*
- * If Fail bit is set we must take the transaction context of
- * the preserved message to find the right request again.
- */
-
- pm = le32_to_cpu(msg->body[3]);
- pmsg = i2o_msg_in_to_virt(c, pm);
- context = readl(&pmsg->u.s.tcntxt);
-
- i2o_report_status(KERN_INFO, "i2o_core", msg);
-
- /* Release the preserved msg */
- i2o_msg_nop_mfa(c, pm);
- } else
- context = le32_to_cpu(msg->u.s.tcntxt);
-
- if (context & 0x80000000)
- return i2o_msg_post_wait_complete(c, m, msg, context);
-
- if ((le32_to_cpu(msg->u.head[1]) >> 24) == I2O_CMD_LCT_NOTIFY) {
- struct i2o_exec_lct_notify_work *work;
-
- pr_debug("%s: LCT notify received\n", c->name);
-
- work = kmalloc(sizeof(*work), GFP_ATOMIC);
- if (!work)
- return -ENOMEM;
-
- work->c = c;
-
- INIT_WORK(&work->work, i2o_exec_lct_modified);
- queue_work(i2o_exec_driver.event_queue, &work->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
- * @work: Work item in occurring event
- *
- * Handles events send by the Executive device. At the moment does not do
- * anything useful.
- */
-static void i2o_exec_event(struct work_struct *work)
-{
- struct i2o_event *evt = container_of(work, struct i2o_event, work);
-
- if (likely(evt->i2o_dev))
- osm_debug("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;
- int i = 0;
- int rc = -EAGAIN;
-
- for (i = 1; i <= I2O_LCT_GET_TRIES; i++) {
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] =
- cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 |
- ADAPTER_TID);
- msg->body[0] = cpu_to_le32(0xffffffff);
- msg->body[1] = cpu_to_le32(0x00000000);
- msg->body[2] = cpu_to_le32(0xd0000000 | c->dlct.len);
- msg->body[3] = cpu_to_le32(c->dlct.phys);
-
- rc = i2o_msg_post_wait(c, msg, I2O_TIMEOUT_LCT_GET);
- if (rc < 0)
- break;
-
- rc = i2o_device_parse_lct(c);
- if (rc != -EAGAIN)
- break;
- }
-
- return rc;
-}
-
-/* Exec OSM driver struct */
-struct i2o_driver i2o_exec_driver = {
- .name = OSM_NAME,
- .reply = i2o_exec_reply,
- .event = i2o_exec_event,
- .classes = i2o_exec_class_id,
- .driver = {
- .probe = i2o_exec_probe,
- .remove = i2o_exec_remove,
- },
-};
-
-/**
- * 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 i2o_exec_exit(void)
-{
- i2o_driver_unregister(&i2o_exec_driver);
-};
-
-EXPORT_SYMBOL(i2o_msg_post_wait_mem);
-EXPORT_SYMBOL(i2o_exec_lct_get);
+++ /dev/null
-/*
- * 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/slab.h>
-#include <linux/i2o.h>
-#include <linux/mutex.h>
-
-#include <linux/mempool.h>
-
-#include <linux/genhd.h>
-#include <linux/blkdev.h>
-#include <linux/hdreg.h>
-
-#include <scsi/scsi.h>
-
-#include "i2o_block.h"
-
-#define OSM_NAME "block-osm"
-#define OSM_VERSION "1.325"
-#define OSM_DESCRIPTION "I2O Block Device OSM"
-
-static DEFINE_MUTEX(i2o_block_mutex);
-static struct i2o_driver i2o_block_driver;
-
-/* global Block OSM request mempool */
-static struct i2o_block_mempool i2o_blk_req_pool;
-
-/* Block OSM class handling definition */
-static struct i2o_class_id i2o_block_class_id[] = {
- {I2O_CLASS_RANDOM_BLOCK_STORAGE},
- {I2O_CLASS_END}
-};
-
-/**
- * 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_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);
-
- osm_info("device removed (TID: %03x): %s\n", i2o_dev->lct_data.tid,
- 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;
-
- msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_BLOCK_CFLUSH << 24 | HOST_TID << 12 | dev->
- lct_data.tid);
- msg->body[0] = cpu_to_le32(60 << 16);
- osm_debug("Flushing...\n");
-
- return i2o_msg_post_wait(dev->iop, msg, 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;
-
- msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_BLOCK_MMOUNT << 24 | HOST_TID << 12 | dev->
- lct_data.tid);
- msg->body[0] = cpu_to_le32(-1);
- msg->body[1] = cpu_to_le32(0x00000000);
- osm_debug("Mounting...\n");
-
- return i2o_msg_post_wait(dev->iop, msg, 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;
-
- msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_BLOCK_MLOCK << 24 | HOST_TID << 12 | dev->
- lct_data.tid);
- msg->body[0] = cpu_to_le32(-1);
- osm_debug("Locking...\n");
-
- return i2o_msg_post_wait(dev->iop, msg, 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;
-
- msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_BLOCK_MUNLOCK << 24 | HOST_TID << 12 | dev->
- lct_data.tid);
- msg->body[0] = cpu_to_le32(media_id);
- osm_debug("Unlocking...\n");
-
- return i2o_msg_post_wait(dev->iop, msg, 2);
-};
-
-/**
- * i2o_block_device_power - Power management for device dev
- * @dev: I2O device which should receive the power management request
- * @op: Operation to 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;
- int rc;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_BLOCK_POWER << 24 | HOST_TID << 12 | i2o_dev->
- lct_data.tid);
- msg->body[0] = cpu_to_le32(op << 24);
- osm_debug("Power...\n");
-
- rc = i2o_msg_post_wait(c, msg, 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);
- sg_init_table(ireq->sg_table, I2O_MAX_PHYS_SEGMENTS);
-
- return ireq;
-};
-
-/**
- * i2o_block_request_free - Frees a I2O block request
- * @ireq: I2O block request which should be freed
- *
- * Frees 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
- * @c: I2O controller to which the request belongs
- * @ireq: I2O block request
- * @mptr: message body pointer
- *
- * Builds the SG list and map it to be accessible by the controller.
- *
- * Returns 0 on failure or 1 on success.
- */
-static inline int i2o_block_sglist_alloc(struct i2o_controller *c,
- struct i2o_block_request *ireq,
- u32 ** mptr)
-{
- int nents;
- enum dma_data_direction direction;
-
- ireq->dev = &c->pdev->dev;
- nents = blk_rq_map_sg(ireq->req->q, ireq->req, ireq->sg_table);
-
- if (rq_data_dir(ireq->req) == READ)
- direction = PCI_DMA_FROMDEVICE;
- else
- direction = PCI_DMA_TODEVICE;
-
- ireq->sg_nents = nents;
-
- return i2o_dma_map_sg(c, ireq->sg_table, nents, direction, mptr);
-};
-
-/**
- * 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)
-{
- enum dma_data_direction direction;
-
- if (rq_data_dir(ireq->req) == READ)
- direction = PCI_DMA_FROMDEVICE;
- else
- direction = PCI_DMA_TODEVICE;
-
- dma_unmap_sg(ireq->dev, ireq->sg_table, ireq->sg_nents, 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 lose 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;
-
- if (unlikely(!i2o_blk_dev)) {
- osm_err("block device already removed\n");
- return BLKPREP_KILL;
- }
-
- /* connect the i2o_block_request to the request */
- if (!req->special) {
- ireq = i2o_block_request_alloc();
- if (IS_ERR(ireq)) {
- osm_debug("unable to allocate i2o_block_request!\n");
- return BLKPREP_DEFER;
- }
-
- ireq->i2o_blk_dev = i2o_blk_dev;
- req->special = ireq;
- ireq->req = req;
- }
- /* do not come back here */
- req->cmd_flags |= REQ_DONTPREP;
-
- return BLKPREP_OK;
-};
-
-/**
- * i2o_block_delayed_request_fn - delayed request queue function
- * @work: 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(struct work_struct *work)
-{
- struct i2o_block_delayed_request *dreq =
- container_of(work, struct i2o_block_delayed_request,
- work.work);
- 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_end_request - Post-processing of completed commands
- * @req: request which should be completed
- * @error: 0 for success, < 0 for error
- * @nr_bytes: number of bytes to complete
- *
- * Mark the request as complete. The lock must not be held when entering.
- *
- */
-static void i2o_block_end_request(struct request *req, int error,
- int nr_bytes)
-{
- struct i2o_block_request *ireq = req->special;
- struct i2o_block_device *dev = ireq->i2o_blk_dev;
- struct request_queue *q = req->q;
- unsigned long flags;
-
- if (blk_end_request(req, error, nr_bytes))
- if (error)
- blk_end_request_all(req, -EIO);
-
- spin_lock_irqsave(q->queue_lock, flags);
-
- if (likely(dev)) {
- 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);
-};
-
-/**
- * i2o_block_reply - Block OSM reply handler.
- * @c: I2O controller from which the message arrives
- * @m: message id of reply
- * @msg: the actual 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 request *req;
- int error = 0;
-
- req = i2o_cntxt_list_get(c, le32_to_cpu(msg->u.s.tcntxt));
- if (unlikely(!req)) {
- osm_err("NULL reply received!\n");
- return -1;
- }
-
- /*
- * Lets see what is cooking. We stuffed the
- * request in the context.
- */
-
- if ((le32_to_cpu(msg->body[0]) >> 24) != 0) {
- u32 status = le32_to_cpu(msg->body[0]);
- /*
- * 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
- */
-
- osm_err("TID %03x error status: 0x%02x, detailed status: "
- "0x%04x\n", (le32_to_cpu(msg->u.head[1]) >> 12 & 0xfff),
- status >> 24, status & 0xffff);
-
- req->errors++;
-
- error = -EIO;
- }
-
- i2o_block_end_request(req, error, le32_to_cpu(msg->body[1]));
-
- return 1;
-};
-
-static void i2o_block_event(struct work_struct *work)
-{
- struct i2o_event *evt = container_of(work, struct i2o_event, work);
- osm_debug("event received\n");
- kfree(evt);
-};
-
-/*
- * 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
- * @bdev: block device being opened
- * @mode: file open mode
- *
- * 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 block_device *bdev, fmode_t mode)
-{
- struct i2o_block_device *dev = bdev->bd_disk->private_data;
-
- if (!dev->i2o_dev)
- return -ENODEV;
-
- mutex_lock(&i2o_block_mutex);
- 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);
-
- osm_debug("Ready.\n");
- mutex_unlock(&i2o_block_mutex);
-
- return 0;
-};
-
-/**
- * i2o_block_release - Release the I2O block device
- * @disk: gendisk device being released
- * @mode: file open mode
- *
- * Unlock and unmount the media, and power down the device. Gets called if
- * the block device is closed.
- */
-static void i2o_block_release(struct gendisk *disk, fmode_t mode)
-{
- struct i2o_block_device *dev = disk->private_data;
- u8 operation;
-
- /*
- * This is to deal with the case of an application
- * opening a device and then the device disappears 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;
-
- mutex_lock(&i2o_block_mutex);
- 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);
- mutex_unlock(&i2o_block_mutex);
-}
-
-static int i2o_block_getgeo(struct block_device *bdev, struct hd_geometry *geo)
-{
- i2o_block_biosparam(get_capacity(bdev->bd_disk),
- &geo->cylinders, &geo->heads, &geo->sectors);
- return 0;
-}
-
-/**
- * i2o_block_ioctl - Issue device specific ioctl calls.
- * @bdev: block device being opened
- * @mode: file open mode
- * @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 block_device *bdev, fmode_t mode,
- unsigned int cmd, unsigned long arg)
-{
- struct gendisk *disk = bdev->bd_disk;
- struct i2o_block_device *dev = disk->private_data;
- int ret = -ENOTTY;
-
- /* Anyone capable of this syscall can do *real bad* things */
-
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
-
- mutex_lock(&i2o_block_mutex);
- switch (cmd) {
- case BLKI2OGRSTRAT:
- ret = put_user(dev->rcache, (int __user *)arg);
- break;
- case BLKI2OGWSTRAT:
- ret = put_user(dev->wcache, (int __user *)arg);
- break;
- case BLKI2OSRSTRAT:
- ret = -EINVAL;
- if (arg < 0 || arg > CACHE_SMARTFETCH)
- break;
- dev->rcache = arg;
- ret = 0;
- break;
- case BLKI2OSWSTRAT:
- ret = -EINVAL;
- if (arg != 0
- && (arg < CACHE_WRITETHROUGH || arg > CACHE_SMARTBACK))
- break;
- dev->wcache = arg;
- ret = 0;
- break;
- }
- mutex_unlock(&i2o_block_mutex);
-
- return ret;
-};
-
-/**
- * i2o_block_check_events - Have we seen a media change?
- * @disk: gendisk which should be verified
- * @clearing: events being cleared
- *
- * Verifies if the media has changed.
- *
- * Returns 1 if the media was changed or 0 otherwise.
- */
-static unsigned int i2o_block_check_events(struct gendisk *disk,
- unsigned int clearing)
-{
- struct i2o_block_device *p = disk->private_data;
-
- if (p->media_change_flag) {
- p->media_change_flag = 0;
- return DISK_EVENT_MEDIA_CHANGE;
- }
- return 0;
-}
-
-/**
- * i2o_block_transfer - Transfer a request to/from the I2O controller
- * @req: the request which should be transferred
- *
- * 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;
- u32 tid;
- struct i2o_message *msg;
- u32 *mptr;
- struct i2o_block_request *ireq = req->special;
- u32 tcntxt;
- u32 sgl_offset = SGL_OFFSET_8;
- u32 ctl_flags = 0x00000000;
- int rc;
- u32 cmd;
-
- if (unlikely(!dev->i2o_dev)) {
- osm_err("transfer to removed drive\n");
- rc = -ENODEV;
- goto exit;
- }
-
- tid = dev->i2o_dev->lct_data.tid;
- c = dev->i2o_dev->iop;
-
- msg = i2o_msg_get(c);
- if (IS_ERR(msg)) {
- rc = PTR_ERR(msg);
- goto exit;
- }
-
- tcntxt = i2o_cntxt_list_add(c, req);
- if (!tcntxt) {
- rc = -ENOMEM;
- goto nop_msg;
- }
-
- msg->u.s.icntxt = cpu_to_le32(i2o_block_driver.context);
- msg->u.s.tcntxt = cpu_to_le32(tcntxt);
-
- mptr = &msg->body[0];
-
- if (rq_data_dir(req) == READ) {
- cmd = I2O_CMD_BLOCK_READ << 24;
-
- switch (dev->rcache) {
- case CACHE_PREFETCH:
- ctl_flags = 0x201F0008;
- break;
-
- case CACHE_SMARTFETCH:
- if (blk_rq_sectors(req) > 16)
- ctl_flags = 0x201F0008;
- else
- ctl_flags = 0x001F0000;
- break;
-
- default:
- break;
- }
- } else {
- cmd = I2O_CMD_BLOCK_WRITE << 24;
-
- switch (dev->wcache) {
- case CACHE_WRITETHROUGH:
- ctl_flags = 0x001F0008;
- break;
- case CACHE_WRITEBACK:
- ctl_flags = 0x001F0010;
- break;
- case CACHE_SMARTBACK:
- if (blk_rq_sectors(req) > 16)
- ctl_flags = 0x001F0004;
- else
- ctl_flags = 0x001F0010;
- break;
- case CACHE_SMARTTHROUGH:
- if (blk_rq_sectors(req) > 16)
- ctl_flags = 0x001F0004;
- else
- ctl_flags = 0x001F0010;
- default:
- break;
- }
- }
-
-#ifdef CONFIG_I2O_EXT_ADAPTEC
- if (c->adaptec) {
- u8 cmd[10];
- u32 scsi_flags;
- u16 hwsec;
-
- hwsec = queue_logical_block_size(req->q) >> KERNEL_SECTOR_SHIFT;
- memset(cmd, 0, 10);
-
- sgl_offset = SGL_OFFSET_12;
-
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_PRIVATE << 24 | HOST_TID << 12 | tid);
-
- *mptr++ = cpu_to_le32(I2O_VENDOR_DPT << 16 | I2O_CMD_SCSI_EXEC);
- *mptr++ = cpu_to_le32(tid);
-
- /*
- * ENABLE_DISCONNECT
- * SIMPLE_TAG
- * RETURN_SENSE_DATA_IN_REPLY_MESSAGE_FRAME
- */
- if (rq_data_dir(req) == READ) {
- cmd[0] = READ_10;
- scsi_flags = 0x60a0000a;
- } else {
- cmd[0] = WRITE_10;
- scsi_flags = 0xa0a0000a;
- }
-
- *mptr++ = cpu_to_le32(scsi_flags);
-
- *((u32 *) & cmd[2]) = cpu_to_be32(blk_rq_pos(req) * hwsec);
- *((u16 *) & cmd[7]) = cpu_to_be16(blk_rq_sectors(req) * hwsec);
-
- memcpy(mptr, cmd, 10);
- mptr += 4;
- *mptr++ = cpu_to_le32(blk_rq_bytes(req));
- } else
-#endif
- {
- msg->u.head[1] = cpu_to_le32(cmd | HOST_TID << 12 | tid);
- *mptr++ = cpu_to_le32(ctl_flags);
- *mptr++ = cpu_to_le32(blk_rq_bytes(req));
- *mptr++ =
- cpu_to_le32((u32) (blk_rq_pos(req) << KERNEL_SECTOR_SHIFT));
- *mptr++ =
- cpu_to_le32(blk_rq_pos(req) >> (32 - KERNEL_SECTOR_SHIFT));
- }
-
- if (!i2o_block_sglist_alloc(c, ireq, &mptr)) {
- rc = -ENOMEM;
- goto context_remove;
- }
-
- msg->u.head[0] =
- cpu_to_le32(I2O_MESSAGE_SIZE(mptr - &msg->u.head[0]) | sgl_offset);
-
- list_add_tail(&ireq->queue, &dev->open_queue);
- dev->open_queue_depth++;
-
- i2o_msg_post(c, msg);
-
- return 0;
-
- context_remove:
- i2o_cntxt_list_remove(c, req);
-
- nop_msg:
- i2o_msg_nop(c, msg);
-
- exit:
- return rc;
-};
-
-/**
- * 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 ((req = blk_peek_request(q)) != NULL) {
- if (req->cmd_type == REQ_TYPE_FS) {
- 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)) {
- blk_start_request(req);
- continue;
- } else
- osm_info("transfer error\n");
- }
-
- if (queue_depth)
- break;
-
- /* stop the queue and retry later */
- dreq = kmalloc(sizeof(*dreq), GFP_ATOMIC);
- if (!dreq)
- continue;
-
- dreq->queue = q;
- INIT_DELAYED_WORK(&dreq->work,
- i2o_block_delayed_request_fn);
-
- if (!queue_delayed_work(i2o_block_driver.event_queue,
- &dreq->work,
- I2O_BLOCK_RETRY_TIME))
- kfree(dreq);
- else {
- blk_stop_queue(q);
- break;
- }
- } else {
- blk_start_request(req);
- __blk_end_request_all(req, -EIO);
- }
- }
-};
-
-/* I2O Block device operations definition */
-static const struct block_device_operations i2o_block_fops = {
- .owner = THIS_MODULE,
- .open = i2o_block_open,
- .release = i2o_block_release,
- .ioctl = i2o_block_ioctl,
- .compat_ioctl = i2o_block_ioctl,
- .getgeo = i2o_block_getgeo,
- .check_events = i2o_block_check_events,
-};
-
-/**
- * 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 success 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 = kzalloc(sizeof(*dev), GFP_KERNEL);
- if (!dev) {
- osm_err("Insufficient memory to allocate I2O Block disk.\n");
- rc = -ENOMEM;
- goto exit;
- }
-
- 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) {
- osm_err("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) {
- osm_err("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_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_controller *c = i2o_dev->iop;
- struct i2o_block_device *i2o_blk_dev;
- struct gendisk *gd;
- struct request_queue *queue;
- static int unit = 0;
- int rc;
- u64 size;
- u32 blocksize;
- u16 body_size = 4;
- u16 power;
- unsigned short max_sectors;
-
-#ifdef CONFIG_I2O_EXT_ADAPTEC
- if (c->adaptec)
- body_size = 8;
-#endif
-
- if (c->limit_sectors)
- max_sectors = I2O_MAX_SECTORS_LIMITED;
- else
- max_sectors = I2O_MAX_SECTORS;
-
- /* skip devices which are used by IOP */
- if (i2o_dev->lct_data.user_tid != 0xfff) {
- osm_debug("skipping used device %03x\n", i2o_dev->lct_data.tid);
- return -ENODEV;
- }
-
- if (i2o_device_claim(i2o_dev)) {
- osm_warn("Unable to claim device. Installation aborted\n");
- rc = -EFAULT;
- goto exit;
- }
-
- i2o_blk_dev = i2o_block_device_alloc();
- if (IS_ERR(i2o_blk_dev)) {
- osm_err("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);
- gd->driverfs_dev = &i2o_dev->device;
-
- /* setup request queue */
- queue = gd->queue;
- queue->queuedata = i2o_blk_dev;
-
- blk_queue_max_hw_sectors(queue, max_sectors);
- blk_queue_max_segments(queue, i2o_sg_tablesize(c, body_size));
-
- osm_debug("max sectors = %d\n", queue->max_sectors);
- osm_debug("phys segments = %d\n", queue->max_phys_segments);
- osm_debug("max hw segments = %d\n", queue->max_hw_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) ||
- !i2o_parm_field_get(i2o_dev, 0x0000, 3, &blocksize, 4)) {
- blk_queue_logical_block_size(queue, le32_to_cpu(blocksize));
- } else
- osm_warn("unable to get blocksize of %s\n", gd->disk_name);
-
- if (!i2o_parm_field_get(i2o_dev, 0x0004, 0, &size, 8) ||
- !i2o_parm_field_get(i2o_dev, 0x0000, 4, &size, 8)) {
- set_capacity(gd, le64_to_cpu(size) >> KERNEL_SECTOR_SHIFT);
- } else
- osm_warn("could not get size of %s\n", gd->disk_name);
-
- if (!i2o_parm_field_get(i2o_dev, 0x0000, 2, &power, 2))
- i2o_blk_dev->power = power;
-
- i2o_event_register(i2o_dev, &i2o_block_driver, 0, 0xffffffff);
-
- add_disk(gd);
-
- unit++;
-
- osm_info("device added (TID: %03x): %s\n", i2o_dev->lct_data.tid,
- i2o_blk_dev->gd->disk_name);
-
- return 0;
-
- claim_release:
- i2o_device_claim_release(i2o_dev);
-
- exit:
- return rc;
-};
-
-/* Block OSM driver struct */
-static struct i2o_driver i2o_block_driver = {
- .name = OSM_NAME,
- .event = i2o_block_event,
- .reply = i2o_block_reply,
- .classes = i2o_block_class_id,
- .driver = {
- .probe = i2o_block_probe,
- .remove = i2o_block_remove,
- },
-};
-
-/**
- * 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 OSM_DESCRIPTION " v" OSM_VERSION "\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);
- if (!i2o_blk_req_pool.slab) {
- osm_err("can't init request slab\n");
- rc = -ENOMEM;
- goto exit;
- }
-
- i2o_blk_req_pool.pool =
- mempool_create_slab_pool(I2O_BLOCK_REQ_MEMPOOL_SIZE,
- i2o_blk_req_pool.slab);
- if (!i2o_blk_req_pool.pool) {
- osm_err("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) {
- osm_err("unable to register block device\n");
- goto free_mempool;
- }
-#ifdef MODULE
- osm_info("registered device at major %d\n", I2O_MAJOR);
-#endif
-
- /* Register Block OSM into I2O core */
- rc = i2o_driver_register(&i2o_block_driver);
- if (rc) {
- osm_err("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_LICENSE("GPL");
-MODULE_DESCRIPTION(OSM_DESCRIPTION);
-MODULE_VERSION(OSM_VERSION);
-
-module_init(i2o_block_init);
-module_exit(i2o_block_exit);
+++ /dev/null
-/*
- * 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
-
-/* request queue sizes */
-#define I2O_BLOCK_REQ_MEMPOOL_SIZE 32
-
-#define KERNEL_SECTOR_SHIFT 9
-#define KERNEL_SECTOR_SIZE (1 << KERNEL_SECTOR_SHIFT)
-
-/* I2O Block OSM mempool struct */
-struct i2o_block_mempool {
- struct kmem_cache *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 transferred, 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;
- u16 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 */
- struct device *dev; /* device used for DMA */
- int sg_nents; /* number of SG elements */
- struct scatterlist sg_table[I2O_MAX_PHYS_SEGMENTS]; /* SG table */
-};
-
-/* I2O Block device delayed request */
-struct i2o_block_delayed_request {
- struct delayed_work work;
- struct request_queue *queue;
-};
-
-#endif
+++ /dev/null
-/*
- * 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 Häkkinen (09/10/1999):
- * Changes to i2o_cfg_reply(), ioctl_parms()
- * Added ioct_validate()
- * Taneli Vähäkangas (09/30/1999):
- * Fixed ioctl_swdl()
- * Taneli Vähäkangas (10/04/1999):
- * Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel()
- * Deepak Saxena (11/18/1999):
- * Added event managmenet support
- * Alan Cox <alan@lxorguk.ukuu.org.uk>:
- * 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/miscdevice.h>
-#include <linux/mutex.h>
-#include <linux/compat.h>
-#include <linux/slab.h>
-
-#include <asm/uaccess.h>
-
-#include "core.h"
-
-#define SG_TABLESIZE 30
-
-static DEFINE_MUTEX(i2o_cfg_mutex);
-static long i2o_cfg_ioctl(struct file *, unsigned int, unsigned long);
-
-static spinlock_t i2o_config_lock;
-
-#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 arg)
-{
- struct i2o_controller *c;
- u8 __user *user_iop_table = (void __user *)arg;
- u8 tmp[MAX_I2O_CONTROLLERS];
- int ret = 0;
-
- memset(tmp, 0, MAX_I2O_CONTROLLERS);
-
- list_for_each_entry(c, &i2o_controllers, list)
- tmp[c->unit] = 1;
-
- if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS))
- ret = -EFAULT;
-
- return ret;
-};
-
-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);
-
- if (put_user(len, kcmd.reslen))
- ret = -EFAULT;
- else if (len > reslen)
- ret = -ENOBUFS;
- else 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;
- if (put_user(len, kcmd.reslen))
- ret = -EFAULT;
- else 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;
-
- /*
- * Stop users being able to try and allocate arbitrary amounts
- * of DMA space. 64K is way more than sufficient for this.
- */
- if (kcmd.oplen > 65536)
- return -EMSGSIZE;
-
- ops = memdup_user(kcmd.opbuf, kcmd.oplen);
- if (IS_ERR(ops))
- return PTR_ERR(ops);
-
- /*
- * It's possible to have a _very_ large table
- * and that the user asks for all of it at once...
- */
- res = 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;
- }
-
- if (put_user(len, kcmd.reslen))
- ret = -EFAULT;
- else 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;
- 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;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
- i2o_msg_nop(c, msg);
- return -ENOMEM;
- }
-
- if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) {
- i2o_msg_nop(c, msg);
- i2o_dma_free(&c->pdev->dev, &buffer);
- return -EFAULT;
- }
-
- msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 |
- ADAPTER_TID);
- msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
- msg->u.head[3] = cpu_to_le32(0);
- msg->body[0] =
- cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer.
- sw_type) << 16) |
- (((u32) maxfrag) << 8) | (((u32) curfrag)));
- msg->body[1] = cpu_to_le32(swlen);
- msg->body[2] = cpu_to_le32(kxfer.sw_id);
- msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
- msg->body[4] = cpu_to_le32(buffer.phys);
-
- osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
- status = i2o_msg_post_wait_mem(c, msg, 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
- osm_info("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;
- unsigned int status = 0, swlen = 0, fragsize = 8192;
- struct i2o_controller *c;
- int ret = 0;
-
- 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)
- return -EFAULT;
-
- c = i2o_find_iop(kxfer.iop);
- if (!c)
- return -ENXIO;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
- i2o_msg_nop(c, msg);
- return -ENOMEM;
- }
-
- msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID);
- msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
- msg->u.head[3] = cpu_to_le32(0);
- msg->body[0] =
- cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.
- sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag);
- msg->body[1] = cpu_to_le32(swlen);
- msg->body[2] = cpu_to_le32(kxfer.sw_id);
- msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
- msg->body[4] = cpu_to_le32(buffer.phys);
-
- osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
- status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
-
- if (status != I2O_POST_WAIT_OK) {
- if (status != -ETIMEDOUT)
- i2o_dma_free(&c->pdev->dev, &buffer);
-
- osm_info("swul failed, DetailedStatus = %d\n", status);
- return status;
- }
-
- if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
- ret = -EFAULT;
-
- i2o_dma_free(&c->pdev->dev, &buffer);
-
- return ret;
-}
-
-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;
- 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;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID);
- msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
- msg->u.head[3] = cpu_to_le32(0);
- msg->body[0] =
- cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16);
- msg->body[1] = cpu_to_le32(swlen);
- msg->body[2] = cpu_to_le32(kxfer.sw_id);
-
- token = i2o_msg_post_wait(c, msg, 10);
-
- if (token != I2O_POST_WAIT_OK) {
- osm_info("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;
- struct i2o_controller *c;
-
- c = i2o_find_iop(iop);
- if (!c)
- return -ENXIO;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop);
- msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
- msg->u.head[3] = cpu_to_le32(0);
-
- token = i2o_msg_post_wait(c, msg, 10);
-
- if (token != I2O_POST_WAIT_OK) {
- osm_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;
- 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;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 |
- kdesc.tid);
- msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
- msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data));
- msg->body[0] = cpu_to_le32(kdesc.evt_mask);
-
- i2o_msg_post(c, msg);
-
- 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;
-}
-
-#ifdef CONFIG_COMPAT
-static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
- unsigned long arg)
-{
- struct i2o_cmd_passthru32 __user *cmd;
- struct i2o_controller *c;
- u32 __user *user_msg;
- u32 *reply = NULL;
- u32 __user *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;
- u32 sg_index = 0;
- i2o_status_block *sb;
- struct i2o_message *msg;
- unsigned int iop;
-
- cmd = (struct i2o_cmd_passthru32 __user *)arg;
-
- if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
- return -EFAULT;
-
- user_msg = compat_ptr(i);
-
- c = i2o_find_iop(iop);
- if (!c) {
- osm_debug("controller %d not found\n", iop);
- return -ENXIO;
- }
-
- sb = c->status_block.virt;
-
- if (get_user(size, &user_msg[0])) {
- osm_warn("unable to get size!\n");
- return -EFAULT;
- }
- size = size >> 16;
-
- if (size > sb->inbound_frame_size) {
- osm_warn("size of message > inbound_frame_size");
- return -EFAULT;
- }
-
- user_reply = &user_msg[size];
-
- size <<= 2; // Convert to bytes
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- rcode = -EFAULT;
- /* Copy in the user's I2O command */
- if (copy_from_user(msg, user_msg, size)) {
- osm_warn("unable to copy user message\n");
- goto out;
- }
- i2o_dump_message(msg);
-
- if (get_user(reply_size, &user_reply[0]) < 0)
- goto out;
-
- reply_size >>= 16;
- reply_size <<= 2;
-
- rcode = -ENOMEM;
- reply = kzalloc(reply_size, GFP_KERNEL);
- if (!reply) {
- printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
- c->name);
- goto out;
- }
-
- sg_offset = (msg->u.head[0] >> 4) & 0x0f;
-
- 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->u.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);
- rcode = -EINVAL;
- goto cleanup;
- }
-
- 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[sg_index]);
- /* Allocate memory for the transfer */
- if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
- 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 sg_list_cleanup;
- }
- sg_index++;
- /* 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 __user *)(unsigned long)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 sg_list_cleanup;
- }
- }
- //TODO 64bit fix
- sg[i].addr_bus = (u32) p->phys;
- }
- }
-
- rcode = i2o_msg_post_wait(c, msg, 60);
- msg = NULL;
- if (rcode) {
- reply[4] = ((u32) rcode) << 24;
- goto sg_list_cleanup;
- }
-
- if (sg_offset) {
- u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
- /* 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(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
- // get user msg size in u32s
- if (get_user(size, &user_msg[0])) {
- rcode = -EFAULT;
- goto sg_list_cleanup;
- }
- size = size >> 16;
- size *= 4;
- if (size > sizeof(rmsg)) {
- rcode = -EINVAL;
- goto sg_list_cleanup;
- }
-
- /* Copy in the user's I2O command */
- if (copy_from_user(rmsg, user_msg, size)) {
- rcode = -EFAULT;
- goto sg_list_cleanup;
- }
- sg_count =
- (size - sg_offset * 4) / sizeof(struct sg_simple_element);
-
- // TODO 64bit fix
- sg = (struct sg_simple_element *)(rmsg + 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 sg_list_cleanup;
- }
- }
- }
- }
-
-sg_list_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;
- }
- }
- for (i = 0; i < sg_index; i++)
- i2o_dma_free(&c->pdev->dev, &sg_list[i]);
-
-cleanup:
- kfree(reply);
-out:
- if (msg)
- i2o_msg_nop(c, msg);
- return rcode;
-}
-
-static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
- unsigned long arg)
-{
- int ret;
- switch (cmd) {
- case I2OGETIOPS:
- ret = i2o_cfg_ioctl(file, cmd, arg);
- break;
- case I2OPASSTHRU32:
- mutex_lock(&i2o_cfg_mutex);
- ret = i2o_cfg_passthru32(file, cmd, arg);
- mutex_unlock(&i2o_cfg_mutex);
- break;
- default:
- ret = -ENOIOCTLCMD;
- break;
- }
- return ret;
-}
-
-#endif
-
-#ifdef CONFIG_I2O_EXT_ADAPTEC
-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 *reply = NULL;
- u32 __user *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;
- int sg_index = 0;
- u32 i = 0;
- i2o_status_block *sb;
- struct i2o_message *msg;
- unsigned int iop;
-
- if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
- return -EFAULT;
-
- c = i2o_find_iop(iop);
- if (!c) {
- osm_warn("controller %d not found\n", iop);
- return -ENXIO;
- }
-
- sb = c->status_block.virt;
-
- if (get_user(size, &user_msg[0]))
- return -EFAULT;
- size = size >> 16;
-
- if (size > sb->inbound_frame_size) {
- osm_warn("size of message > inbound_frame_size");
- return -EFAULT;
- }
-
- user_reply = &user_msg[size];
-
- size <<= 2; // Convert to bytes
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- rcode = -EFAULT;
- /* Copy in the user's I2O command */
- if (copy_from_user(msg, user_msg, size))
- goto out;
-
- if (get_user(reply_size, &user_reply[0]) < 0)
- goto out;
-
- reply_size >>= 16;
- reply_size <<= 2;
-
- reply = kzalloc(reply_size, GFP_KERNEL);
- if (!reply) {
- printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
- c->name);
- rcode = -ENOMEM;
- goto out;
- }
-
- sg_offset = (msg->u.head[0] >> 4) & 0x0f;
-
- memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
- if (sg_offset) {
- struct sg_simple_element *sg;
- struct i2o_dma *p;
-
- if (sg_offset * 4 >= size) {
- rcode = -EFAULT;
- goto cleanup;
- }
- // TODO 64bit fix
- sg = (struct sg_simple_element *)((&msg->u.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);
- rcode = -EINVAL;
- goto cleanup;
- }
-
- 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 sg_list_cleanup;
- }
- sg_size = sg[i].flag_count & 0xffffff;
- p = &(sg_list[sg_index]);
- if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
- /* Allocate memory for the transfer */
- 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 sg_list_cleanup;
- }
- sg_index++;
- /* 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 __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 sg_list_cleanup;
- }
- }
- sg[i].addr_bus = p->phys;
- }
- }
-
- rcode = i2o_msg_post_wait(c, msg, 60);
- msg = NULL;
- if (rcode) {
- reply[4] = ((u32) rcode) << 24;
- goto sg_list_cleanup;
- }
-
- if (sg_offset) {
- u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
- /* 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(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
- // get user msg size in u32s
- if (get_user(size, &user_msg[0])) {
- rcode = -EFAULT;
- goto sg_list_cleanup;
- }
- size = size >> 16;
- size *= 4;
- if (size > sizeof(rmsg)) {
- rcode = -EFAULT;
- goto sg_list_cleanup;
- }
-
- /* Copy in the user's I2O command */
- if (copy_from_user(rmsg, user_msg, size)) {
- rcode = -EFAULT;
- goto sg_list_cleanup;
- }
- sg_count =
- (size - sg_offset * 4) / sizeof(struct sg_simple_element);
-
- // TODO 64bit fix
- sg = (struct sg_simple_element *)(rmsg + 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].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 sg_list_cleanup;
- }
- }
- }
- }
-
-sg_list_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;
- }
- }
-
- for (i = 0; i < sg_index; i++)
- i2o_dma_free(&c->pdev->dev, &sg_list[i]);
-
-cleanup:
- kfree(reply);
-out:
- if (msg)
- i2o_msg_nop(c, msg);
- return rcode;
-}
-#endif
-
-/*
- * IOCTL Handler
- */
-static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
-{
- int ret;
-
- mutex_lock(&i2o_cfg_mutex);
- 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;
-
-#ifdef CONFIG_I2O_EXT_ADAPTEC
- case I2OPASSTHRU:
- ret = i2o_cfg_passthru(arg);
- break;
-#endif
-
- default:
- osm_debug("unknown ioctl called!\n");
- ret = -EINVAL;
- }
- mutex_unlock(&i2o_cfg_mutex);
- return ret;
-}
-
-static int cfg_open(struct inode *inode, struct file *file)
-{
- struct i2o_cfg_info *tmp = kmalloc(sizeof(struct i2o_cfg_info),
- GFP_KERNEL);
- unsigned long flags;
-
- if (!tmp)
- return -ENOMEM;
-
- mutex_lock(&i2o_cfg_mutex);
- 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);
- mutex_unlock(&i2o_cfg_mutex);
-
- return 0;
-}
-
-static int cfg_fasync(int fd, struct file *fp, int on)
-{
- ulong id = (ulong) fp->private_data;
- struct i2o_cfg_info *p;
- int ret = -EBADF;
-
- mutex_lock(&i2o_cfg_mutex);
- for (p = open_files; p; p = p->next)
- if (p->q_id == id)
- break;
-
- if (p)
- ret = fasync_helper(fd, fp, on, &p->fasync);
- mutex_unlock(&i2o_cfg_mutex);
- return ret;
-}
-
-static int cfg_release(struct inode *inode, struct file *file)
-{
- ulong id = (ulong) file->private_data;
- struct i2o_cfg_info *p, **q;
- unsigned long flags;
-
- mutex_lock(&i2o_cfg_mutex);
- spin_lock_irqsave(&i2o_config_lock, flags);
- for (q = &open_files; (p = *q) != NULL; q = &p->next) {
- if (p->q_id == id) {
- *q = p->next;
- kfree(p);
- break;
- }
- }
- spin_unlock_irqrestore(&i2o_config_lock, flags);
- mutex_unlock(&i2o_cfg_mutex);
-
- return 0;
-}
-
-static const struct file_operations config_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .unlocked_ioctl = i2o_cfg_ioctl,
-#ifdef CONFIG_COMPAT
- .compat_ioctl = i2o_cfg_compat_ioctl,
-#endif
- .open = cfg_open,
- .release = cfg_release,
- .fasync = cfg_fasync,
-};
-
-static struct miscdevice i2o_miscdev = {
- I2O_MINOR,
- "i2octl",
- &config_fops
-};
-
-static int __init i2o_config_old_init(void)
-{
- spin_lock_init(&i2o_config_lock);
-
- if (misc_register(&i2o_miscdev) < 0) {
- osm_err("can't register device.\n");
- return -EBUSY;
- }
-
- return 0;
-}
-
-static void i2o_config_old_exit(void)
-{
- misc_deregister(&i2o_miscdev);
-}
-
-MODULE_AUTHOR("Red Hat Software");
+++ /dev/null
-/*
- * 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 Sievänen (Juha.Sievanen@cs.Helsinki.FI),
- * Auvo Häkkinen (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
- */
-
-#define OSM_NAME "proc-osm"
-#define OSM_VERSION "1.316"
-#define OSM_DESCRIPTION "I2O ProcFS OSM"
-
-#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/slab.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 */
- umode_t mode; /* mode */
- const struct file_operations *fops; /* open function */
-} i2o_proc_entry;
-
-/* 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 = OSM_NAME,
-};
-
-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 @ %pM", &serialno[2]);
- 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:?] %pM",
- serialno[8], serialno[9], &serialno[2]);
- 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:
- 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];
-}
-
-#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(char *tmp, u8 *chars, int n)
-{
- 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",
- "PCI",
- "PCMCIA",
- "NUBUS",
- "CARDBUS"
-};
-
-static 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_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;
-}
-
-static 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:
- 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;
-}
-
-static 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;
-}
-
-static 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) */
-static 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;
- char tmp[28 + 1];
-
- 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(tmp, 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) */
-static 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) */
-static 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;
- char tmp[28 + 1];
-
- 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, " ");
- }
-
- seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
- seq_printf(seq, "%-#8x", dst->module_id);
- seq_printf(seq, "%-29s",
- chtostr(tmp, dst->module_name_version, 28));
- seq_printf(seq, "%-9s", chtostr(tmp, 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);
- seq_printf(seq, "\n");
- }
-
- kfree(result);
- return 0;
-}
-
-/* Generic group F000h - Params Descriptor (table) */
-static 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) */
-static 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) */
-static 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) */
-static 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) */
-static 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) */
-static 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) */
-static 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;
- char tmp[16 + 1];
-
- 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(tmp, (u8 *) (work32 + 2), 16));
- seq_printf(seq, "Product info : %s\n",
- chtostr(tmp, (u8 *) (work32 + 6), 16));
- seq_printf(seq, "Description : %s\n",
- chtostr(tmp, (u8 *) (work32 + 10), 16));
- seq_printf(seq, "Product rev. : %s\n",
- chtostr(tmp, (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;
-}
-
-static 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", dev_name(&d->device));
-
- return 0;
-}
-
-/* Generic group F101h - DDM Identity (scalar) */
-static 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;
-
- char tmp[24 + 1];
-
- 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(tmp, result.module_name, 24));
- seq_printf(seq, "Module revision : %s\n",
- chtostr(tmp, 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) */
-static 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;
-
- char tmp[64 + 1];
-
- 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(tmp, result.device_name, 64));
- seq_printf(seq, "Service name : %s\n",
- chtostr(tmp, result.service_name, 64));
- seq_printf(seq, "Physical name : %s\n",
- chtostr(tmp, result.physical_location, 64));
- seq_printf(seq, "Instance number : %s\n",
- chtostr(tmp, result.instance_number, 4));
-
- return 0;
-}
-
-/* Generic group F103h - SGL Operating Limits (scalar) */
-static 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) */
-static 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;
-}
-
-static int i2o_seq_open_hrt(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_hrt, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_lct(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_lct, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_status(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_status, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_hw(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_hw, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_ddm_table(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_ddm_table, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_driver_store(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_driver_store, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_drivers_stored(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_drivers_stored, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_groups(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_groups, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_phys_device(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_phys_device, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_claimed(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_claimed, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_users(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_users, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_priv_msgs(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_priv_msgs, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_authorized_users(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_authorized_users,
- PDE_DATA(inode));
-};
-
-static int i2o_seq_open_dev_identity(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_dev_identity, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_ddm_identity(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_ddm_identity, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_uinfo(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_uinfo, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_sgl_limits(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_sgl_limits, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_sensors(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_sensors, PDE_DATA(inode));
-};
-
-static int i2o_seq_open_dev_name(struct inode *inode, struct file *file)
-{
- return single_open(file, i2o_seq_show_dev_name, PDE_DATA(inode));
-};
-
-static const struct file_operations i2o_seq_fops_lct = {
- .open = i2o_seq_open_lct,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_hrt = {
- .open = i2o_seq_open_hrt,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_status = {
- .open = i2o_seq_open_status,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_hw = {
- .open = i2o_seq_open_hw,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_ddm_table = {
- .open = i2o_seq_open_ddm_table,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_driver_store = {
- .open = i2o_seq_open_driver_store,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_drivers_stored = {
- .open = i2o_seq_open_drivers_stored,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_groups = {
- .open = i2o_seq_open_groups,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_phys_device = {
- .open = i2o_seq_open_phys_device,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_claimed = {
- .open = i2o_seq_open_claimed,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_users = {
- .open = i2o_seq_open_users,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_priv_msgs = {
- .open = i2o_seq_open_priv_msgs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_authorized_users = {
- .open = i2o_seq_open_authorized_users,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_dev_name = {
- .open = i2o_seq_open_dev_name,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_dev_identity = {
- .open = i2o_seq_open_dev_identity,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_ddm_identity = {
- .open = i2o_seq_open_ddm_identity,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_uinfo = {
- .open = i2o_seq_open_uinfo,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const struct file_operations i2o_seq_fops_sgl_limits = {
- .open = i2o_seq_open_sgl_limits,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static const 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}
-};
-
-/**
- * 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 = proc_create_data(i2o_pe->name, i2o_pe->mode, dir,
- i2o_pe->fops, data);
- if (!tmp)
- return -1;
-
- i2o_pe++;
- }
-
- return 0;
-}
-
-/**
- * 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);
-
- osm_debug("adding device /proc/i2o/%s/%s\n", dev->iop->name, buff);
-
- devdir = proc_mkdir_data(buff, 0, dir, dev);
- if (!devdir) {
- osm_warn("Could not allocate procdir!\n");
- return;
- }
-
- 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_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;
-
- osm_debug("adding IOP /proc/i2o/%s\n", c->name);
-
- iopdir = proc_mkdir_data(c->name, 0, dir, c);
- if (!iopdir)
- return -1;
-
- 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_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", NULL);
- if (!i2o_proc_dir_root)
- return -1;
-
- 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)
-{
- remove_proc_subtree("i2o", NULL);
-
- 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;
-
- printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
-
- 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_LICENSE("GPL");
-MODULE_DESCRIPTION(OSM_DESCRIPTION);
-MODULE_VERSION(OSM_VERSION);
-
-module_init(i2o_proc_init);
-module_exit(i2o_proc_exit);
+++ /dev/null
-/*
- * 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 <linux/blkdev.h>
-#include <linux/i2o.h>
-#include <linux/scatterlist.h>
-
-#include <asm/dma.h>
-#include <asm/io.h>
-#include <linux/atomic.h>
-
-#include <scsi/scsi.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_device.h>
-#include <scsi/scsi_cmnd.h>
-#include <scsi/sg.h>
-
-#define OSM_NAME "scsi-osm"
-#define OSM_VERSION "1.316"
-#define OSM_DESCRIPTION "I2O SCSI Peripheral OSM"
-
-static struct i2o_driver i2o_scsi_driver;
-
-static unsigned int i2o_scsi_max_id = 16;
-static unsigned int i2o_scsi_max_lun = 255;
-
-struct i2o_scsi_host {
- struct Scsi_Host *scsi_host; /* pointer to the SCSI host */
- struct i2o_controller *iop; /* pointer to the I2O controller */
- u64 lun; /* lun's used for block devices */
- struct i2o_device *channel[0]; /* channel->i2o_dev mapping table */
-};
-
-static struct scsi_host_template i2o_scsi_host_template;
-
-#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}
-};
-
-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;
- u16 body_size = 6;
-
-#ifdef CONFIG_I2O_EXT_ADAPTEC
- if (c->adaptec)
- body_size = 8;
-#endif
-
- list_for_each_entry(i2o_dev, &c->devices, list)
- if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER) {
- if (!i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
- && (type == 0x01)) /* SCSI bus */
- max_channel++;
- }
-
- if (!max_channel) {
- osm_warn("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) {
- osm_warn("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;
- scsi_host->sg_tablesize = i2o_sg_tablesize(c, body_size);
-
- i2o_shost = (struct i2o_scsi_host *)scsi_host->hostdata;
- i2o_shost->scsi_host = scsi_host;
- i2o_shost->iop = c;
- i2o_shost->lun = 1;
-
- i = 0;
- list_for_each_entry(i2o_dev, &c->devices, list)
- if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER) {
- if (!i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
- && (type == 0x01)) /* 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 NULL on failure.
- */
-static struct i2o_scsi_host *i2o_scsi_get_host(struct i2o_controller *c)
-{
- return c->driver_data[i2o_scsi_driver.context];
-};
-
-/**
- * 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;
-
- osm_info("device removed (TID: %03x)\n", i2o_dev->lct_data.tid);
-
- i2o_shost = i2o_scsi_get_host(c);
-
- shost_for_each_device(scsi_dev, i2o_shost->scsi_host)
- if (scsi_dev->hostdata == i2o_dev) {
- sysfs_remove_link(&i2o_dev->device.kobj, "scsi");
- 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 everything 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 = -1;
- u64 lun = -1;
- int channel = -1;
- int i, rc;
-
- i2o_shost = i2o_scsi_get_host(c);
- if (!i2o_shost)
- return -EFAULT;
-
- scsi_host = i2o_shost->scsi_host;
-
- switch (i2o_dev->lct_data.class_id) {
- case I2O_CLASS_RANDOM_BLOCK_STORAGE:
- case I2O_CLASS_EXECUTIVE:
-#ifdef CONFIG_I2O_EXT_ADAPTEC
- if (c->adaptec) {
- u8 type;
- struct i2o_device *d = i2o_shost->channel[0];
-
- if (!i2o_parm_field_get(d, 0x0000, 0, &type, 1)
- && (type == 0x01)) /* SCSI bus */
- if (!i2o_parm_field_get(d, 0x0200, 4, &id, 4)) {
- channel = 0;
- if (i2o_dev->lct_data.class_id ==
- I2O_CLASS_RANDOM_BLOCK_STORAGE)
- lun =
- cpu_to_le64(i2o_shost->
- lun++);
- else
- lun = 0;
- }
- }
-#endif
- break;
-
- case I2O_CLASS_SCSI_PERIPHERAL:
- if (i2o_parm_field_get(i2o_dev, 0x0000, 3, &id, 4))
- return -EFAULT;
-
- if (i2o_parm_field_get(i2o_dev, 0x0000, 4, &lun, 8))
- return -EFAULT;
-
- parent = i2o_iop_find_device(c, i2o_dev->lct_data.parent_tid);
- if (!parent) {
- osm_warn("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;
- break;
-
- default:
- return -EFAULT;
- }
-
- if (channel == -1) {
- osm_warn("can not find channel of device %03x\n",
- i2o_dev->lct_data.tid);
- return -EFAULT;
- }
-
- if (le32_to_cpu(id) >= scsi_host->max_id) {
- osm_warn("SCSI device id (%d) >= max_id of I2O host (%d)",
- le32_to_cpu(id), scsi_host->max_id);
- return -EFAULT;
- }
-
- if (le64_to_cpu(lun) >= scsi_host->max_lun) {
- osm_warn("SCSI device lun (%llu) >= max_lun of I2O host (%llu)",
- le64_to_cpu(lun), scsi_host->max_lun);
- return -EFAULT;
- }
-
- scsi_dev =
- __scsi_add_device(i2o_shost->scsi_host, channel, le32_to_cpu(id),
- le64_to_cpu(lun), i2o_dev);
-
- if (IS_ERR(scsi_dev)) {
- osm_warn("can not add SCSI device %03x\n",
- i2o_dev->lct_data.tid);
- return PTR_ERR(scsi_dev);
- }
-
- rc = sysfs_create_link(&i2o_dev->device.kobj,
- &scsi_dev->sdev_gendev.kobj, "scsi");
- if (rc)
- goto err;
-
- osm_info("device added (TID: %03x) channel: %d, id: %d, lun: %llu\n",
- i2o_dev->lct_data.tid, channel, le32_to_cpu(id),
- le64_to_cpu(lun));
-
- return 0;
-
-err:
- scsi_remove_device(scsi_dev);
- return rc;
-};
-
-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;
-}
-
-/**
- * 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;
- u32 error;
- struct device *dev;
-
- cmd = i2o_cntxt_list_get(c, le32_to_cpu(msg->u.s.tcntxt));
- if (unlikely(!cmd)) {
- osm_err("NULL reply received!\n");
- return -1;
- }
-
- /*
- * Low byte is device status, next is adapter status,
- * (then one byte reserved), then request status.
- */
- error = le32_to_cpu(msg->body[0]);
-
- osm_debug("Completed %0x%p\n", cmd);
-
- cmd->result = error & 0xff;
- /*
- * if DeviceStatus is not SCSI_SUCCESS copy over the sense data and let
- * the SCSI layer handle the error
- */
- if (cmd->result)
- memcpy(cmd->sense_buffer, &msg->body[3],
- min(SCSI_SENSE_BUFFERSIZE, 40));
-
- /* only output error code if AdapterStatus is not HBA_SUCCESS */
- if ((error >> 8) & 0xff)
- osm_err("SCSI error %08x\n", error);
-
- dev = &c->pdev->dev;
-
- scsi_dma_unmap(cmd);
-
- cmd->scsi_done(cmd);
-
- return 1;
-};
-
-/**
- * i2o_scsi_notify_device_add - Retrieve notifications of added devices
- * @i2o_dev: the I2O device which was added
- *
- * If a I2O device is added we catch the notification, because I2O classes
- * other than SCSI peripheral will not be received through
- * i2o_scsi_probe().
- */
-static void i2o_scsi_notify_device_add(struct i2o_device *i2o_dev)
-{
- switch (i2o_dev->lct_data.class_id) {
- case I2O_CLASS_EXECUTIVE:
- case I2O_CLASS_RANDOM_BLOCK_STORAGE:
- i2o_scsi_probe(&i2o_dev->device);
- break;
-
- default:
- break;
- }
-};
-
-/**
- * i2o_scsi_notify_device_remove - Retrieve notifications of removed devices
- * @i2o_dev: the I2O device which was removed
- *
- * If a I2O device is removed, we catch the notification to remove the
- * corresponding SCSI device.
- */
-static void i2o_scsi_notify_device_remove(struct i2o_device *i2o_dev)
-{
- switch (i2o_dev->lct_data.class_id) {
- case I2O_CLASS_EXECUTIVE:
- case I2O_CLASS_RANDOM_BLOCK_STORAGE:
- i2o_scsi_remove(&i2o_dev->device);
- break;
-
- default:
- break;
- }
-};
-
-/**
- * i2o_scsi_notify_controller_add - Retrieve notifications of added controllers
- * @c: the controller which was added
- *
- * If a I2O controller is added, we catch the notification to add a
- * corresponding Scsi_Host.
- */
-static void i2o_scsi_notify_controller_add(struct i2o_controller *c)
-{
- struct i2o_scsi_host *i2o_shost;
- int rc;
-
- i2o_shost = i2o_scsi_host_alloc(c);
- if (IS_ERR(i2o_shost)) {
- osm_err("Could not initialize SCSI host\n");
- return;
- }
-
- rc = scsi_add_host(i2o_shost->scsi_host, &c->device);
- if (rc) {
- osm_err("Could not add SCSI host\n");
- scsi_host_put(i2o_shost->scsi_host);
- return;
- }
-
- c->driver_data[i2o_scsi_driver.context] = i2o_shost;
-
- osm_debug("new I2O SCSI host added\n");
-};
-
-/**
- * i2o_scsi_notify_controller_remove - Retrieve notifications of removed controllers
- * @c: the controller which was removed
- *
- * If a I2O controller is removed, we catch the notification to remove the
- * corresponding Scsi_Host.
- */
-static void i2o_scsi_notify_controller_remove(struct i2o_controller *c)
-{
- struct i2o_scsi_host *i2o_shost;
- i2o_shost = i2o_scsi_get_host(c);
- if (!i2o_shost)
- return;
-
- c->driver_data[i2o_scsi_driver.context] = NULL;
-
- scsi_remove_host(i2o_shost->scsi_host);
- scsi_host_put(i2o_shost->scsi_host);
- osm_debug("I2O SCSI host removed\n");
-};
-
-/* SCSI OSM driver struct */
-static struct i2o_driver i2o_scsi_driver = {
- .name = OSM_NAME,
- .reply = i2o_scsi_reply,
- .classes = i2o_scsi_class_id,
- .notify_device_add = i2o_scsi_notify_device_add,
- .notify_device_remove = i2o_scsi_notify_device_remove,
- .notify_controller_add = i2o_scsi_notify_controller_add,
- .notify_controller_remove = i2o_scsi_notify_controller_remove,
- .driver = {
- .probe = i2o_scsi_probe,
- .remove = i2o_scsi_remove,
- },
-};
-
-/**
- * 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_lck(struct scsi_cmnd *SCpnt,
- void (*done) (struct scsi_cmnd *))
-{
- struct i2o_controller *c;
- struct i2o_device *i2o_dev;
- int tid;
- struct i2o_message *msg;
- /*
- * ENABLE_DISCONNECT
- * SIMPLE_TAG
- * RETURN_SENSE_DATA_IN_REPLY_MESSAGE_FRAME
- */
- u32 scsi_flags = 0x20a00000;
- u32 sgl_offset;
- u32 *mptr;
- u32 cmd = I2O_CMD_SCSI_EXEC << 24;
- int rc = 0;
-
- /*
- * Do the incoming paperwork
- */
- i2o_dev = SCpnt->device->hostdata;
-
- SCpnt->scsi_done = done;
-
- if (unlikely(!i2o_dev)) {
- osm_warn("no I2O device in request\n");
- SCpnt->result = DID_NO_CONNECT << 16;
- done(SCpnt);
- goto exit;
- }
- c = i2o_dev->iop;
- tid = i2o_dev->lct_data.tid;
-
- osm_debug("qcmd: Tid = %03x\n", tid);
- osm_debug("Real scsi messages.\n");
-
- /*
- * Put together a scsi execscb message
- */
- switch (SCpnt->sc_data_direction) {
- case PCI_DMA_NONE:
- /* DATA NO XFER */
- sgl_offset = SGL_OFFSET_0;
- break;
-
- case PCI_DMA_TODEVICE:
- /* DATA OUT (iop-->dev) */
- scsi_flags |= 0x80000000;
- sgl_offset = SGL_OFFSET_10;
- break;
-
- case PCI_DMA_FROMDEVICE:
- /* DATA IN (iop<--dev) */
- scsi_flags |= 0x40000000;
- sgl_offset = SGL_OFFSET_10;
- break;
-
- default:
- /* Unknown - kill the command */
- SCpnt->result = DID_NO_CONNECT << 16;
- done(SCpnt);
- goto exit;
- }
-
- /*
- * Obtain an I2O message. If there are none free then
- * throw it back to the scsi layer
- */
-
- msg = i2o_msg_get(c);
- if (IS_ERR(msg)) {
- rc = SCSI_MLQUEUE_HOST_BUSY;
- goto exit;
- }
-
- mptr = &msg->body[0];
-
-#if 0 /* this code can't work */
-#ifdef CONFIG_I2O_EXT_ADAPTEC
- if (c->adaptec) {
- u32 adpt_flags = 0;
-
- if (SCpnt->sc_request && SCpnt->sc_request->upper_private_data) {
- i2o_sg_io_hdr_t __user *usr_ptr =
- ((Sg_request *) (SCpnt->sc_request->
- upper_private_data))->header.
- usr_ptr;
-
- if (usr_ptr)
- get_user(adpt_flags, &usr_ptr->flags);
- }
-
- switch (i2o_dev->lct_data.class_id) {
- case I2O_CLASS_EXECUTIVE:
- case I2O_CLASS_RANDOM_BLOCK_STORAGE:
- /* interpret flag has to be set for executive */
- adpt_flags ^= I2O_DPT_SG_FLAG_INTERPRET;
- break;
-
- default:
- break;
- }
-
- /*
- * for Adaptec controllers we use the PRIVATE command, because
- * the normal SCSI EXEC doesn't support all SCSI commands on
- * all controllers (for example READ CAPACITY).
- */
- if (sgl_offset == SGL_OFFSET_10)
- sgl_offset = SGL_OFFSET_12;
- cmd = I2O_CMD_PRIVATE << 24;
- *mptr++ = cpu_to_le32(I2O_VENDOR_DPT << 16 | I2O_CMD_SCSI_EXEC);
- *mptr++ = cpu_to_le32(adpt_flags | tid);
- }
-#endif
-#endif
-
- msg->u.head[1] = cpu_to_le32(cmd | HOST_TID << 12 | tid);
- msg->u.s.icntxt = cpu_to_le32(i2o_scsi_driver.context);
-
- /* We want the SCSI control block back */
- msg->u.s.tcntxt = cpu_to_le32(i2o_cntxt_list_add(c, SCpnt));
-
- /* 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 */
- /* FIXME: implement
- 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;
- }
- */
-
- *mptr++ = cpu_to_le32(scsi_flags | SCpnt->cmd_len);
-
- /* Write SCSI command into the message - always 16 byte block */
- memcpy(mptr, SCpnt->cmnd, 16);
- mptr += 4;
-
- if (sgl_offset != SGL_OFFSET_0) {
- /* write size of data addressed by SGL */
- *mptr++ = cpu_to_le32(scsi_bufflen(SCpnt));
-
- /* Now fill in the SGList and command */
-
- if (scsi_sg_count(SCpnt)) {
- if (!i2o_dma_map_sg(c, scsi_sglist(SCpnt),
- scsi_sg_count(SCpnt),
- SCpnt->sc_data_direction, &mptr))
- goto nomem;
- }
- }
-
- /* Stick the headers on */
- msg->u.head[0] =
- cpu_to_le32(I2O_MESSAGE_SIZE(mptr - &msg->u.head[0]) | sgl_offset);
-
- /* Queue the message */
- i2o_msg_post(c, msg);
-
- osm_debug("Issued %0x%p\n", SCpnt);
-
- return 0;
-
- nomem:
- rc = -ENOMEM;
- i2o_msg_nop(c, msg);
-
- exit:
- return rc;
-}
-
-static DEF_SCSI_QCMD(i2o_scsi_queuecommand)
-
-/**
- * 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.
- *
- * Returns 0 if the command is successfully aborted or negative error code
- * on failure.
- */
-static int i2o_scsi_abort(struct scsi_cmnd *SCpnt)
-{
- struct i2o_device *i2o_dev;
- struct i2o_controller *c;
- struct i2o_message *msg;
- int tid;
- int status = FAILED;
-
- osm_warn("Aborting command block.\n");
-
- i2o_dev = SCpnt->device->hostdata;
- c = i2o_dev->iop;
- tid = i2o_dev->lct_data.tid;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return SCSI_MLQUEUE_HOST_BUSY;
-
- msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_SCSI_ABORT << 24 | HOST_TID << 12 | tid);
- msg->body[0] = cpu_to_le32(i2o_cntxt_list_get_ptr(c, SCpnt));
-
- if (!i2o_msg_post_wait(c, msg, I2O_TIMEOUT_SCSI_SCB_ABORT))
- status = SUCCESS;
-
- return status;
-}
-
-/**
- * i2o_scsi_bios_param - Invent disk geometry
- * @sdev: scsi device
- * @dev: block layer device
- * @capacity: size in sectors
- * @ip: geometry array
- *
- * This is anyone's 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;
-}
-
-static struct scsi_host_template i2o_scsi_host_template = {
- .proc_name = OSM_NAME,
- .name = OSM_DESCRIPTION,
- .info = i2o_scsi_info,
- .queuecommand = i2o_scsi_queuecommand,
- .eh_abort_handler = i2o_scsi_abort,
- .bios_param = i2o_scsi_bios_param,
- .can_queue = I2O_SCSI_CAN_QUEUE,
- .sg_tablesize = 8,
- .cmd_per_lun = 6,
- .use_clustering = ENABLE_CLUSTERING,
-};
-
-/**
- * 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 OSM_DESCRIPTION " v" OSM_VERSION "\n");
-
- /* Register SCSI OSM into I2O core */
- rc = i2o_driver_register(&i2o_scsi_driver);
- if (rc) {
- osm_err("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)
-{
- /* Unregister I2O SCSI OSM from I2O core */
- i2o_driver_unregister(&i2o_scsi_driver);
-};
-
-MODULE_AUTHOR("Red Hat Software");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(OSM_DESCRIPTION);
-MODULE_VERSION(OSM_VERSION);
-
-module_init(i2o_scsi_init);
-module_exit(i2o_scsi_exit);
+++ /dev/null
-/*
- * 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 Sievänen <Juha.Sievanen@cs.Helsinki.FI>
- * Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
- * Deepak Saxena <deepak@plexity.net>
- * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
- * Alan Cox <alan@lxorguk.ukuu.org.uk>:
- * Ported to Linux 2.5.
- * Markus Lidel <Markus.Lidel@shadowconnect.com>:
- * Minor fixes for 2.6.
- */
-
-#include <linux/module.h>
-#include <linux/i2o.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include "core.h"
-
-#define OSM_NAME "i2o"
-#define OSM_VERSION "1.325"
-#define OSM_DESCRIPTION "I2O subsystem"
-
-/* 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;
-
-static int i2o_hrt_get(struct i2o_controller *c);
-
-/**
- * i2o_msg_get_wait - obtain an I2O message from the IOP
- * @c: I2O controller
- * @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.
- */
-struct i2o_message *i2o_msg_get_wait(struct i2o_controller *c, int wait)
-{
- unsigned long timeout = jiffies + wait * HZ;
- struct i2o_message *msg;
-
- while (IS_ERR(msg = i2o_msg_get(c))) {
- if (time_after(jiffies, timeout)) {
- osm_debug("%s: Timeout waiting for message frame.\n",
- c->name);
- return ERR_PTR(-ETIMEDOUT);
- }
- schedule_timeout_uninterruptible(1);
- }
-
- return msg;
-};
-
-#if BITS_PER_LONG == 64
-/**
- * i2o_cntxt_list_add - Append a pointer to context list and return a id
- * @c: controller to which the context list belong
- * @ptr: pointer to add to the context list
- *
- * 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)
- osm_err("%s: couldn't add NULL pointer to context list!\n",
- c->name);
-
- entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
- if (!entry) {
- osm_err("%s: Could not allocate memory for context list element"
- "\n", c->name);
- 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);
-
- osm_debug("%s: Add context to list %p -> %d\n", c->name, ptr, context);
-
- return entry->context;
-};
-
-/**
- * i2o_cntxt_list_remove - Remove a pointer from the context list
- * @c: controller to which the context list belong
- * @ptr: pointer which should be removed from the context list
- *
- * Removes a previously added pointer from the context list and returns
- * the matching context id.
- *
- * Returns context id on success 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)
- osm_warn("%s: Could not remove nonexistent ptr %p\n", c->name,
- ptr);
-
- osm_debug("%s: remove ptr from context list %d -> %p\n", c->name,
- context, ptr);
-
- return context;
-};
-
-/**
- * i2o_cntxt_list_get - Get a pointer from the context list and remove it
- * @c: controller to which the context list belong
- * @context: context id to which the pointer belong
- *
- * Returns pointer to the matching context id on success or NULL on
- * failure.
- */
-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)
- osm_warn("%s: context id %d not found\n", c->name, context);
-
- osm_debug("%s: get ptr from context list %d -> %p\n", c->name, context,
- ptr);
-
- return ptr;
-};
-
-/**
- * i2o_cntxt_list_get_ptr - Get a context id from the context list
- * @c: controller to which the context list belong
- * @ptr: pointer to which the context id should be fetched
- *
- * Returns context id which matches to the pointer on success or 0 on
- * failure.
- */
-u32 i2o_cntxt_list_get_ptr(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) {
- context = entry->context;
- break;
- }
- spin_unlock_irqrestore(&c->context_list_lock, flags);
-
- if (!context)
- osm_warn("%s: Could not find nonexistent ptr %p\n", c->name,
- ptr);
-
- osm_debug("%s: get context id from context list %p -> %d\n", c->name,
- ptr, context);
-
- return context;
-};
-#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 NULL;
-};
-
-/**
- * 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;
- 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;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_SYS_QUIESCE << 24 | HOST_TID << 12 |
- ADAPTER_TID);
-
- /* Long timeout needed for quiesce if lots of devices */
- if ((rc = i2o_msg_post_wait(c, msg, 240)))
- osm_info("%s: Unable to quiesce (status=%#x).\n", c->name, -rc);
- else
- osm_debug("%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;
- 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;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_SYS_ENABLE << 24 | HOST_TID << 12 |
- ADAPTER_TID);
-
- /* How long of a timeout do we need? */
- if ((rc = i2o_msg_post_wait(c, msg, 240)))
- osm_err("%s: Could not enable (status=%#x).\n", c->name, -rc);
- else
- osm_debug("%s: Enabled.\n", c->name);
-
- i2o_status_get(c); // entered OPERATIONAL state
-
- return rc;
-};
-
-/**
- * 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_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;
- int rc;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- /* Quiesce all IOPs first */
- i2o_iop_quiesce_all();
-
- msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_ADAPTER_CLEAR << 24 | HOST_TID << 12 |
- ADAPTER_TID);
-
- if ((rc = i2o_msg_post_wait(c, msg, 30)))
- osm_info("%s: Unable to clear (status=%#x).\n", c->name, -rc);
- else
- osm_debug("%s: Cleared.\n", c->name);
-
- /* Enable all IOPs */
- i2o_iop_enable_all();
-
- return rc;
-}
-
-/**
- * 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 negative error code on failure.
- */
-static int i2o_iop_init_outbound_queue(struct i2o_controller *c)
-{
- u32 m;
- volatile u8 *status = c->status.virt;
- struct i2o_message *msg;
- ulong timeout;
- int i;
-
- osm_debug("%s: Initializing Outbound Queue...\n", c->name);
-
- memset(c->status.virt, 0, 4);
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_OUTBOUND_INIT << 24 | HOST_TID << 12 |
- ADAPTER_TID);
- msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
- msg->u.s.tcntxt = cpu_to_le32(0x00000000);
- msg->body[0] = cpu_to_le32(PAGE_SIZE);
- /* Outbound msg frame size in words and Initcode */
- msg->body[1] = cpu_to_le32(I2O_OUTBOUND_MSG_FRAME_SIZE << 16 | 0x80);
- msg->body[2] = cpu_to_le32(0xd0000004);
- msg->body[3] = cpu_to_le32(i2o_dma_low(c->status.phys));
- msg->body[4] = cpu_to_le32(i2o_dma_high(c->status.phys));
-
- i2o_msg_post(c, msg);
-
- timeout = jiffies + I2O_TIMEOUT_INIT_OUTBOUND_QUEUE * HZ;
- while (*status <= I2O_CMD_IN_PROGRESS) {
- if (time_after(jiffies, timeout)) {
- osm_warn("%s: Timeout Initializing\n", c->name);
- return -ETIMEDOUT;
- }
- schedule_timeout_uninterruptible(1);
- }
-
- m = c->out_queue.phys;
-
- /* Post frames */
- for (i = 0; i < I2O_MAX_OUTBOUND_MSG_FRAMES; i++) {
- i2o_flush_reply(c, m);
- udelay(1); /* Promise */
- m += I2O_OUTBOUND_MSG_FRAME_SIZE * sizeof(u32);
- }
-
- return 0;
-}
-
-/**
- * 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)
-{
- volatile u8 *status = c->status.virt;
- struct i2o_message *msg;
- unsigned long timeout;
- i2o_status_block *sb = c->status_block.virt;
- int rc = 0;
-
- osm_debug("%s: Resetting controller\n", c->name);
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- memset(c->status_block.virt, 0, 8);
-
- /* Quiesce all IOPs first */
- i2o_iop_quiesce_all();
-
- msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_ADAPTER_RESET << 24 | HOST_TID << 12 |
- ADAPTER_TID);
- msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
- msg->u.s.tcntxt = cpu_to_le32(0x00000000);
- msg->body[0] = cpu_to_le32(0x00000000);
- msg->body[1] = cpu_to_le32(0x00000000);
- msg->body[2] = cpu_to_le32(i2o_dma_low(c->status.phys));
- msg->body[3] = cpu_to_le32(i2o_dma_high(c->status.phys));
-
- i2o_msg_post(c, msg);
-
- /* Wait for a reply */
- timeout = jiffies + I2O_TIMEOUT_RESET * HZ;
- while (!*status) {
- if (time_after(jiffies, timeout))
- break;
-
- schedule_timeout_uninterruptible(1);
- }
-
- switch (*status) {
- case I2O_CMD_REJECTED:
- osm_warn("%s: IOP reset rejected\n", c->name);
- rc = -EPERM;
- break;
-
- case 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 amount of time, we assume the
- * IOP could not reboot properly.
- */
- osm_debug("%s: Reset in progress, waiting for reboot...\n",
- c->name);
-
- while (IS_ERR(msg = i2o_msg_get_wait(c, I2O_TIMEOUT_RESET))) {
- if (time_after(jiffies, timeout)) {
- osm_err("%s: IOP reset timeout.\n", c->name);
- rc = PTR_ERR(msg);
- goto exit;
- }
- schedule_timeout_uninterruptible(1);
- }
- i2o_msg_nop(c, msg);
-
- /* from here all quiesce commands are safe */
- c->no_quiesce = 0;
-
- /* verify if controller is in state RESET */
- i2o_status_get(c);
-
- if (!c->promise && (sb->iop_state != ADAPTER_STATE_RESET))
- osm_warn("%s: reset completed, but adapter not in RESET"
- " state.\n", c->name);
- else
- osm_debug("%s: reset completed.\n", c->name);
-
- break;
-
- default:
- osm_err("%s: IOP reset timeout.\n", c->name);
- rc = -ETIMEDOUT;
- break;
- }
-
- exit:
- /* Enable all IOPs */
- i2o_iop_enable_all();
-
- 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;
- int state;
-
- /* In INIT state, Wait Inbound Q to initialize (in i2o_status_get) */
- /* In READY state, Get status */
-
- rc = i2o_status_get(c);
- if (rc) {
- osm_info("%s: Unable to obtain status, attempting a reset.\n",
- c->name);
- rc = i2o_iop_reset(c);
- if (rc)
- return rc;
- }
-
- if (sb->i2o_version > I2OVER15) {
- osm_err("%s: Not running version 1.5 of the I2O Specification."
- "\n", c->name);
- return -ENODEV;
- }
-
- switch (sb->iop_state) {
- case ADAPTER_STATE_FAULTED:
- osm_err("%s: hardware fault\n", c->name);
- return -EFAULT;
-
- case ADAPTER_STATE_READY:
- case ADAPTER_STATE_OPERATIONAL:
- case ADAPTER_STATE_HOLD:
- case ADAPTER_STATE_FAILED:
- osm_debug("%s: already running, trying to reset...\n", c->name);
- rc = i2o_iop_reset(c);
- if (rc)
- return rc;
- }
-
- /* preserve state */
- state = sb->iop_state;
-
- rc = i2o_iop_init_outbound_queue(c);
- if (rc)
- return rc;
-
- /* if adapter was not in RESET state clear now */
- if (state != ADAPTER_STATE_RESET)
- i2o_iop_clear(c);
-
- i2o_status_get(c);
-
- if (sb->iop_state != ADAPTER_STATE_HOLD) {
- osm_err("%s: failed to bring IOP into HOLD state\n", c->name);
- return -EIO;
- }
-
- return i2o_hrt_get(c);
-};
-
-static void i2o_res_alloc(struct i2o_controller *c, unsigned long flags)
-{
- i2o_status_block *sb = c->status_block.virt;
- struct resource *res = &c->mem_resource;
- resource_size_t size, align;
- int err;
-
- res->name = c->pdev->bus->name;
- res->flags = flags;
- res->start = 0;
- res->end = 0;
- osm_info("%s: requires private memory resources.\n", c->name);
-
- if (flags & IORESOURCE_MEM) {
- size = sb->desired_mem_size;
- align = 1 << 20; /* unspecified, use 1Mb and play safe */
- } else {
- size = sb->desired_io_size;
- align = 1 << 12; /* unspecified, use 4Kb and play safe */
- }
-
- err = pci_bus_alloc_resource(c->pdev->bus, res, size, align, 0, 0,
- NULL, NULL);
- if (err < 0)
- return;
-
- if (flags & IORESOURCE_MEM) {
- c->mem_alloc = 1;
- sb->current_mem_size = resource_size(res);
- sb->current_mem_base = res->start;
- } else if (flags & IORESOURCE_IO) {
- c->io_alloc = 1;
- sb->current_io_size = resource_size(res);
- sb->current_io_base = res->start;
- }
- osm_info("%s: allocated PCI space %pR\n", c->name, res);
-}
-
-/**
- * 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;
- i2o_status_block *sb = c->status_block.virt;
- struct device *dev = &c->pdev->dev;
- int rc;
-
- if (sb->current_mem_size < sb->desired_mem_size)
- i2o_res_alloc(c, IORESOURCE_MEM);
-
- if (sb->current_io_size < sb->desired_io_size)
- i2o_res_alloc(c, IORESOURCE_IO);
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- i2o_systab.phys = dma_map_single(dev, i2o_systab.virt, i2o_systab.len,
- PCI_DMA_TODEVICE);
- if (!i2o_systab.phys) {
- i2o_msg_nop(c, msg);
- return -ENOMEM;
- }
-
- msg->u.head[0] = cpu_to_le32(I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_SYS_TAB_SET << 24 | HOST_TID << 12 |
- ADAPTER_TID);
-
- /*
- * Provide three SGL-elements:
- * System table (SysTab), Private memory space declaration and
- * Private i/o space declaration
- */
-
- msg->body[0] = cpu_to_le32(c->unit + 2);
- msg->body[1] = cpu_to_le32(0x00000000);
- msg->body[2] = cpu_to_le32(0x54000000 | i2o_systab.len);
- msg->body[3] = cpu_to_le32(i2o_systab.phys);
- msg->body[4] = cpu_to_le32(0x54000000 | sb->current_mem_size);
- msg->body[5] = cpu_to_le32(sb->current_mem_base);
- msg->body[6] = cpu_to_le32(0xd4000000 | sb->current_io_size);
- msg->body[6] = cpu_to_le32(sb->current_io_base);
-
- rc = i2o_msg_post_wait(c, msg, 120);
-
- dma_unmap_single(dev, i2o_systab.phys, i2o_systab.len,
- PCI_DMA_TODEVICE);
-
- if (rc < 0)
- osm_err("%s: Unable to set SysTab (status=%#x).\n", c->name,
- -rc);
- else
- osm_debug("%s: SysTab set.\n", c->name);
-
- return rc;
-}
-
-/**
- * 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 negative 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 */
- osm_debug("%s: Attempting to enable...\n", c->name);
- rc = i2o_iop_enable(c);
- if (rc)
- return rc;
-
- 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;
-
- osm_debug("%s: deleting controller\n", c->name);
-
- i2o_driver_notify_controller_remove_all(c);
-
- list_del(&c->list);
-
- list_for_each_entry_safe(dev, tmp, &c->devices, list)
- i2o_device_remove(dev);
-
- device_del(&c->device);
-
- /* Ask the IOP to switch to RESET state */
- i2o_iop_reset(c);
-}
-
-/**
- * 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 = kzalloc(i2o_systab.len, GFP_KERNEL);
- if (!systab) {
- osm_err("unable to allocate memory for System Table\n");
- return -ENOMEM;
- }
-
- 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) {
- osm_err("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))) {
- osm_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_dma_low(c->base.phys + I2O_IN_PORT);
- systab->iops[count].inbound_high =
- i2o_dma_high(c->base.phys + I2O_IN_PORT);
-
- count++;
- }
-
- systab->num_entries = count;
-
- return 0;
-};
-
-/**
- * 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 success or negative error code on failure.
- */
-int i2o_status_get(struct i2o_controller *c)
-{
- struct i2o_message *msg;
- volatile u8 *status_block;
- unsigned long timeout;
-
- status_block = (u8 *) c->status_block.virt;
- memset(c->status_block.virt, 0, sizeof(i2o_status_block));
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_STATUS_GET << 24 | HOST_TID << 12 |
- ADAPTER_TID);
- msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
- msg->u.s.tcntxt = cpu_to_le32(0x00000000);
- msg->body[0] = cpu_to_le32(0x00000000);
- msg->body[1] = cpu_to_le32(0x00000000);
- msg->body[2] = cpu_to_le32(i2o_dma_low(c->status_block.phys));
- msg->body[3] = cpu_to_le32(i2o_dma_high(c->status_block.phys));
- msg->body[4] = cpu_to_le32(sizeof(i2o_status_block)); /* always 88 bytes */
-
- i2o_msg_post(c, msg);
-
- /* Wait for a reply */
- timeout = jiffies + I2O_TIMEOUT_STATUS_GET * HZ;
- while (status_block[87] != 0xFF) {
- if (time_after(jiffies, timeout)) {
- osm_err("%s: Get status timeout.\n", c->name);
- return -ETIMEDOUT;
- }
-
- schedule_timeout_uninterruptible(1);
- }
-
-#ifdef 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 negative error code on failure.
- */
-static 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;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(SIX_WORD_MSG_SIZE | SGL_OFFSET_4);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_HRT_GET << 24 | HOST_TID << 12 |
- ADAPTER_TID);
- msg->body[0] = cpu_to_le32(0xd0000000 | c->hrt.len);
- msg->body[1] = cpu_to_le32(c->hrt.phys);
-
- rc = i2o_msg_post_wait_mem(c, msg, 20, &c->hrt);
-
- if (rc < 0) {
- osm_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))
- return -ENOMEM;
- else
- hrt = c->hrt.virt;
- } else
- return i2o_parse_hrt(c);
- }
-
- osm_err("%s: Unable to get HRT after %d tries, giving up\n", c->name,
- I2O_HRT_GET_TRIES);
-
- return -EBUSY;
-}
-
-/**
- * i2o_iop_release - release the memory for a I2O controller
- * @dev: I2O controller which should be released
- *
- * Release the allocated memory. This function is called if refcount of
- * device reaches 0 automatically.
- */
-static void i2o_iop_release(struct device *dev)
-{
- struct i2o_controller *c = to_i2o_controller(dev);
-
- i2o_iop_free(c);
-};
-
-/**
- * i2o_iop_alloc - Allocate and initialize a i2o_controller struct
- *
- * Allocate the necessary memory for a i2o_controller struct and
- * initialize the lists and message mempool.
- *
- * 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;
- char poolname[32];
-
- c = kzalloc(sizeof(*c), GFP_KERNEL);
- if (!c) {
- osm_err("i2o: Insufficient memory to allocate a I2O controller."
- "\n");
- return ERR_PTR(-ENOMEM);
- }
-
- c->unit = unit++;
- sprintf(c->name, "iop%d", c->unit);
-
- snprintf(poolname, sizeof(poolname), "i2o_%s_msg_inpool", c->name);
- if (i2o_pool_alloc
- (&c->in_msg, poolname, I2O_INBOUND_MSG_FRAME_SIZE * 4 + sizeof(u32),
- I2O_MSG_INPOOL_MIN)) {
- kfree(c);
- return ERR_PTR(-ENOMEM);
- };
-
- INIT_LIST_HEAD(&c->devices);
- spin_lock_init(&c->lock);
- mutex_init(&c->lct_lock);
-
- device_initialize(&c->device);
-
- c->device.release = &i2o_iop_release;
-
- dev_set_name(&c->device, "iop%d", c->unit);
-
-#if BITS_PER_LONG == 64
- spin_lock_init(&c->context_list_lock);
- atomic_set(&c->context_list_counter, 0);
- INIT_LIST_HEAD(&c->context_list);
-#endif
-
- return 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;
-
- if ((rc = device_add(&c->device))) {
- osm_err("%s: could not add controller\n", c->name);
- goto iop_reset;
- }
-
- osm_info("%s: Activating I2O controller...\n", c->name);
- osm_info("%s: This may take a few minutes if there are many devices\n",
- c->name);
-
- if ((rc = i2o_iop_activate(c))) {
- osm_err("%s: could not activate controller\n", c->name);
- goto device_del;
- }
-
- osm_debug("%s: building sys table...\n", c->name);
-
- if ((rc = i2o_systab_build()))
- goto device_del;
-
- osm_debug("%s: online controller...\n", c->name);
-
- if ((rc = i2o_iop_online(c)))
- goto device_del;
-
- osm_debug("%s: getting LCT...\n", c->name);
-
- if ((rc = i2o_exec_lct_get(c)))
- goto device_del;
-
- list_add(&c->list, &i2o_controllers);
-
- i2o_driver_notify_controller_add_all(c);
-
- osm_info("%s: Controller added\n", c->name);
-
- return 0;
-
- device_del:
- device_del(&c->device);
-
- iop_reset:
- i2o_iop_reset(c);
-
- return rc;
-};
-
-/**
- * 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 negative error code on failure.
- */
-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;
-
- msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
- if (IS_ERR(msg))
- return PTR_ERR(msg);
-
- msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
- msg->u.head[1] =
- cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | dev->
- lct_data.tid);
- msg->u.s.icntxt = cpu_to_le32(drv->context);
- msg->u.s.tcntxt = cpu_to_le32(tcntxt);
- msg->body[0] = cpu_to_le32(evt_mask);
-
- i2o_msg_post(c, msg);
-
- 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 OSM_DESCRIPTION " v" OSM_VERSION "\n");
-
- if ((rc = i2o_driver_init()))
- goto exit;
-
- if ((rc = i2o_exec_init()))
- goto driver_exit;
-
- if ((rc = i2o_pci_init()))
- goto exec_exit;
-
- return 0;
-
- exec_exit:
- i2o_exec_exit();
-
- driver_exit:
- i2o_driver_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();
-};
-
-module_init(i2o_iop_init);
-module_exit(i2o_iop_exit);
-
-MODULE_AUTHOR("Red Hat Software");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION(OSM_DESCRIPTION);
-MODULE_VERSION(OSM_VERSION);
-
-#if BITS_PER_LONG == 64
-EXPORT_SYMBOL(i2o_cntxt_list_add);
-EXPORT_SYMBOL(i2o_cntxt_list_get);
-EXPORT_SYMBOL(i2o_cntxt_list_remove);
-EXPORT_SYMBOL(i2o_cntxt_list_get_ptr);
-#endif
-EXPORT_SYMBOL(i2o_msg_get_wait);
-EXPORT_SYMBOL(i2o_find_iop);
-EXPORT_SYMBOL(i2o_iop_find_device);
-EXPORT_SYMBOL(i2o_event_register);
-EXPORT_SYMBOL(i2o_status_get);
-EXPORT_SYMBOL(i2o_controllers);
+++ /dev/null
-/*
- * Functions to handle I2O memory
- *
- * Pulled from the inlines in i2o headers and uninlined
- *
- *
- * 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/i2o.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include "core.h"
-
-/* Protects our 32/64bit mask switching */
-static DEFINE_MUTEX(mem_lock);
-
-/**
- * i2o_sg_tablesize - Calculate the maximum number of elements in a SGL
- * @c: I2O controller for which the calculation should be done
- * @body_size: maximum body size used for message in 32-bit words.
- *
- * Return the maximum number of SG elements in a SG list.
- */
-u16 i2o_sg_tablesize(struct i2o_controller *c, u16 body_size)
-{
- i2o_status_block *sb = c->status_block.virt;
- u16 sg_count =
- (sb->inbound_frame_size - sizeof(struct i2o_message) / 4) -
- body_size;
-
- if (c->pae_support) {
- /*
- * for 64-bit a SG attribute element must be added and each
- * SG element needs 12 bytes instead of 8.
- */
- sg_count -= 2;
- sg_count /= 3;
- } else
- sg_count /= 2;
-
- if (c->short_req && (sg_count > 8))
- sg_count = 8;
-
- return sg_count;
-}
-EXPORT_SYMBOL_GPL(i2o_sg_tablesize);
-
-
-/**
- * i2o_dma_map_single - Map pointer to controller and fill in I2O message.
- * @c: I2O controller
- * @ptr: pointer to the data which should be mapped
- * @size: size of data in bytes
- * @direction: DMA_TO_DEVICE / DMA_FROM_DEVICE
- * @sg_ptr: pointer to the SG list inside the I2O message
- *
- * This function does all necessary DMA handling and also writes the I2O
- * SGL elements into the I2O message. For details on DMA handling see also
- * dma_map_single(). The pointer sg_ptr will only be set to the end of the
- * SG list if the allocation was successful.
- *
- * Returns DMA address which must be checked for failures using
- * dma_mapping_error().
- */
-dma_addr_t i2o_dma_map_single(struct i2o_controller *c, void *ptr,
- size_t size,
- enum dma_data_direction direction,
- u32 ** sg_ptr)
-{
- u32 sg_flags;
- u32 *mptr = *sg_ptr;
- dma_addr_t dma_addr;
-
- switch (direction) {
- case DMA_TO_DEVICE:
- sg_flags = 0xd4000000;
- break;
- case DMA_FROM_DEVICE:
- sg_flags = 0xd0000000;
- break;
- default:
- return 0;
- }
-
- dma_addr = dma_map_single(&c->pdev->dev, ptr, size, direction);
- if (!dma_mapping_error(&c->pdev->dev, dma_addr)) {
-#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
- if ((sizeof(dma_addr_t) > 4) && c->pae_support) {
- *mptr++ = cpu_to_le32(0x7C020002);
- *mptr++ = cpu_to_le32(PAGE_SIZE);
- }
-#endif
-
- *mptr++ = cpu_to_le32(sg_flags | size);
- *mptr++ = cpu_to_le32(i2o_dma_low(dma_addr));
-#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
- if ((sizeof(dma_addr_t) > 4) && c->pae_support)
- *mptr++ = cpu_to_le32(i2o_dma_high(dma_addr));
-#endif
- *sg_ptr = mptr;
- }
- return dma_addr;
-}
-EXPORT_SYMBOL_GPL(i2o_dma_map_single);
-
-/**
- * i2o_dma_map_sg - Map a SG List to controller and fill in I2O message.
- * @c: I2O controller
- * @sg: SG list to be mapped
- * @sg_count: number of elements in the SG list
- * @direction: DMA_TO_DEVICE / DMA_FROM_DEVICE
- * @sg_ptr: pointer to the SG list inside the I2O message
- *
- * This function does all necessary DMA handling and also writes the I2O
- * SGL elements into the I2O message. For details on DMA handling see also
- * dma_map_sg(). The pointer sg_ptr will only be set to the end of the SG
- * list if the allocation was successful.
- *
- * Returns 0 on failure or 1 on success.
- */
-int i2o_dma_map_sg(struct i2o_controller *c, struct scatterlist *sg,
- int sg_count, enum dma_data_direction direction, u32 ** sg_ptr)
-{
- u32 sg_flags;
- u32 *mptr = *sg_ptr;
-
- switch (direction) {
- case DMA_TO_DEVICE:
- sg_flags = 0x14000000;
- break;
- case DMA_FROM_DEVICE:
- sg_flags = 0x10000000;
- break;
- default:
- return 0;
- }
-
- sg_count = dma_map_sg(&c->pdev->dev, sg, sg_count, direction);
- if (!sg_count)
- return 0;
-
-#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
- if ((sizeof(dma_addr_t) > 4) && c->pae_support) {
- *mptr++ = cpu_to_le32(0x7C020002);
- *mptr++ = cpu_to_le32(PAGE_SIZE);
- }
-#endif
-
- while (sg_count-- > 0) {
- if (!sg_count)
- sg_flags |= 0xC0000000;
- *mptr++ = cpu_to_le32(sg_flags | sg_dma_len(sg));
- *mptr++ = cpu_to_le32(i2o_dma_low(sg_dma_address(sg)));
-#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
- if ((sizeof(dma_addr_t) > 4) && c->pae_support)
- *mptr++ = cpu_to_le32(i2o_dma_high(sg_dma_address(sg)));
-#endif
- sg = sg_next(sg);
- }
- *sg_ptr = mptr;
-
- return 1;
-}
-EXPORT_SYMBOL_GPL(i2o_dma_map_sg);
-
-/**
- * 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
- *
- * Allocate a coherent DMA memory and write the pointers into addr.
- *
- * Returns 0 on success or -ENOMEM on failure.
- */
-int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr, size_t len)
-{
- struct pci_dev *pdev = to_pci_dev(dev);
- int dma_64 = 0;
-
- mutex_lock(&mem_lock);
- if ((sizeof(dma_addr_t) > 4) && (pdev->dma_mask == DMA_BIT_MASK(64))) {
- dma_64 = 1;
- if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
- mutex_unlock(&mem_lock);
- return -ENOMEM;
- }
- }
-
- addr->virt = dma_alloc_coherent(dev, len, &addr->phys, GFP_KERNEL);
-
- if ((sizeof(dma_addr_t) > 4) && dma_64)
- if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
- printk(KERN_WARNING "i2o: unable to set 64-bit DMA");
- mutex_unlock(&mem_lock);
-
- if (!addr->virt)
- return -ENOMEM;
-
- memset(addr->virt, 0, len);
- addr->len = len;
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(i2o_dma_alloc);
-
-
-/**
- * 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.
- */
-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;
- }
-}
-EXPORT_SYMBOL_GPL(i2o_dma_free);
-
-
-/**
- * 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
- *
- * 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)
-{
- i2o_dma_free(dev, addr);
-
- if (len)
- return i2o_dma_alloc(dev, addr, len);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(i2o_dma_realloc);
-
-/*
- * i2o_pool_alloc - Allocate an slab cache and mempool
- * @mempool: pointer to struct i2o_pool to write data into.
- * @name: name which is used to identify cache
- * @size: size of each object
- * @min_nr: minimum number of objects
- *
- * First allocates a slab cache with name and size. Then allocates a
- * mempool which uses the slab cache for allocation and freeing.
- *
- * Returns 0 on success or negative error code on failure.
- */
-int i2o_pool_alloc(struct i2o_pool *pool, const char *name,
- size_t size, int min_nr)
-{
- pool->name = kmalloc(strlen(name) + 1, GFP_KERNEL);
- if (!pool->name)
- goto exit;
- strcpy(pool->name, name);
-
- pool->slab =
- kmem_cache_create(pool->name, size, 0, SLAB_HWCACHE_ALIGN, NULL);
- if (!pool->slab)
- goto free_name;
-
- pool->mempool = mempool_create_slab_pool(min_nr, pool->slab);
- if (!pool->mempool)
- goto free_slab;
-
- return 0;
-
-free_slab:
- kmem_cache_destroy(pool->slab);
-
-free_name:
- kfree(pool->name);
-
-exit:
- return -ENOMEM;
-}
-EXPORT_SYMBOL_GPL(i2o_pool_alloc);
-
-/*
- * i2o_pool_free - Free slab cache and mempool again
- * @mempool: pointer to struct i2o_pool which should be freed
- *
- * Note that you have to return all objects to the mempool again before
- * calling i2o_pool_free().
- */
-void i2o_pool_free(struct i2o_pool *pool)
-{
- mempool_destroy(pool->mempool);
- kmem_cache_destroy(pool->slab);
- kfree(pool->name);
-};
-EXPORT_SYMBOL_GPL(i2o_pool_free);
+++ /dev/null
-/*
- * 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 Sievänen <Juha.Sievanen@cs.Helsinki.FI>
- * Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
- * Deepak Saxena <deepak@plexity.net>
- * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
- * Alan Cox <alan@lxorguk.ukuu.org.uk>:
- * 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>
-#include <linux/slab.h>
-#include <linux/i2o.h>
-#include <linux/module.h>
-#include "core.h"
-
-#define OSM_DESCRIPTION "I2O-subsystem"
-
-/* PCI device id table for all I2O controllers */
-static struct pci_device_id i2o_pci_ids[] = {
- {PCI_DEVICE_CLASS(PCI_CLASS_INTELLIGENT_I2O << 8, 0xffff00)},
- {PCI_DEVICE(PCI_VENDOR_ID_DPT, 0xa511)},
- {.vendor = PCI_VENDOR_ID_INTEL,.device = 0x1962,
- .subvendor = PCI_VENDOR_ID_PROMISE,.subdevice = PCI_ANY_ID},
- {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 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);
- kfree(c->lct);
- i2o_dma_free(dev, &c->dlct);
- i2o_dma_free(dev, &c->hrt);
- i2o_dma_free(dev, &c->status);
-
- if (c->raptor && c->in_queue.virt)
- iounmap(c->in_queue.virt);
-
- if (c->base.virt)
- iounmap(c->base.virt);
-
- pci_release_regions(c->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 i2o_pci_alloc(struct i2o_controller *c)
-{
- struct pci_dev *pdev = c->pdev;
- struct device *dev = &pdev->dev;
- int i;
-
- if (pci_request_regions(pdev, OSM_DESCRIPTION)) {
- printk(KERN_ERR "%s: device already claimed\n", c->name);
- return -ENODEV;
- }
-
- 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 we know what card it is, set the size
- * correctly. Code is taken from dpt_i2o.c
- */
- if (pdev->device == 0xa501) {
- if (pdev->subsystem_device >= 0xc032 &&
- pdev->subsystem_device <= 0xc03b) {
- if (c->base.len > 0x400000)
- c->base.len = 0x400000;
- } else {
- if (c->base.len > 0x100000)
- c->base.len = 0x100000;
- }
- }
- 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 "%s: I2O controller has no memory regions"
- " defined.\n", c->name);
- i2o_pci_free(c);
- return -EINVAL;
- }
-
- /* Map the I2O controller */
- if (c->raptor) {
- printk(KERN_INFO "%s: PCI I2O controller\n", c->name);
- 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 "%s: PCI I2O controller at %08lX size=%ld\n",
- c->name, (unsigned long)c->base.phys,
- (unsigned long)c->base.len);
-
- c->base.virt = ioremap_nocache(c->base.phys, c->base.len);
- if (!c->base.virt) {
- printk(KERN_ERR "%s: Unable to map controller.\n", c->name);
- i2o_pci_free(c);
- return -ENOMEM;
- }
-
- if (c->raptor) {
- c->in_queue.virt =
- ioremap_nocache(c->in_queue.phys, c->in_queue.len);
- if (!c->in_queue.virt) {
- printk(KERN_ERR "%s: Unable to map controller.\n",
- c->name);
- i2o_pci_free(c);
- return -ENOMEM;
- }
- } else
- c->in_queue = c->base;
-
- c->irq_status = c->base.virt + I2O_IRQ_STATUS;
- c->irq_mask = c->base.virt + I2O_IRQ_MASK;
- c->in_port = c->base.virt + I2O_IN_PORT;
- c->out_port = c->base.virt + I2O_OUT_PORT;
-
- /* Motorola/Freescale chip does not follow spec */
- if (pdev->vendor == PCI_VENDOR_ID_MOTOROLA && pdev->device == 0x18c0) {
- /* Check if CPU is enabled */
- if (be32_to_cpu(readl(c->base.virt + 0x10000)) & 0x10000000) {
- printk(KERN_INFO "%s: MPC82XX needs CPU running to "
- "service I2O.\n", c->name);
- i2o_pci_free(c);
- return -ENODEV;
- } else {
- c->irq_status += I2O_MOTOROLA_PORT_OFFSET;
- c->irq_mask += I2O_MOTOROLA_PORT_OFFSET;
- c->in_port += I2O_MOTOROLA_PORT_OFFSET;
- c->out_port += I2O_MOTOROLA_PORT_OFFSET;
- printk(KERN_INFO "%s: MPC82XX workarounds activated.\n",
- c->name);
- }
- }
-
- if (i2o_dma_alloc(dev, &c->status, 8)) {
- i2o_pci_free(c);
- return -ENOMEM;
- }
-
- if (i2o_dma_alloc(dev, &c->hrt, sizeof(i2o_hrt))) {
- i2o_pci_free(c);
- return -ENOMEM;
- }
-
- if (i2o_dma_alloc(dev, &c->dlct, 8192)) {
- i2o_pci_free(c);
- return -ENOMEM;
- }
-
- if (i2o_dma_alloc(dev, &c->status_block, sizeof(i2o_status_block))) {
- i2o_pci_free(c);
- return -ENOMEM;
- }
-
- if (i2o_dma_alloc(dev, &c->out_queue,
- I2O_MAX_OUTBOUND_MSG_FRAMES * I2O_OUTBOUND_MSG_FRAME_SIZE *
- sizeof(u32))) {
- i2o_pci_free(c);
- return -ENOMEM;
- }
-
- pci_set_drvdata(pdev, c);
-
- return 0;
-}
-
-/**
- * i2o_pci_interrupt - Interrupt handler for I2O controller
- * @irq: interrupt line
- * @dev_id: pointer to the I2O controller
- *
- * 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 i2o_controller *c = dev_id;
- u32 m;
- irqreturn_t rc = IRQ_NONE;
-
- while (readl(c->irq_status) & I2O_IRQ_OUTBOUND_POST) {
- m = readl(c->out_port);
- if (m == I2O_QUEUE_EMPTY) {
- /*
- * Old 960 steppings had a bug in the I2O unit that
- * caused the queue to appear empty when it wasn't.
- */
- m = readl(c->out_port);
- if (unlikely(m == I2O_QUEUE_EMPTY))
- break;
- }
-
- /* dispatch it */
- if (i2o_driver_dispatch(c, m))
- /* flush it if result != 0 */
- i2o_flush_reply(c, m);
-
- rc = IRQ_HANDLED;
- }
-
- return rc;
-}
-
-/**
- * i2o_pci_irq_enable - Allocate interrupt for I2O controller
- * @c: i2o_controller that the request is for
- *
- * 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;
-
- writel(0xffffffff, c->irq_mask);
-
- if (pdev->irq) {
- rc = request_irq(pdev->irq, i2o_pci_interrupt, IRQF_SHARED,
- c->name, c);
- if (rc < 0) {
- printk(KERN_ERR "%s: unable to allocate interrupt %d."
- "\n", c->name, pdev->irq);
- return rc;
- }
- }
-
- writel(0x00000000, c->irq_mask);
-
- 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)
-{
- writel(0xffffffff, c->irq_mask);
-
- if (c->pdev->irq > 0)
- free_irq(c->pdev->irq, c);
-}
-
-/**
- * i2o_pci_probe - Probe the PCI device for an I2O controller
- * @pdev: 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 i2o_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-{
- struct i2o_controller *c;
- int rc;
- struct pci_dev *i960 = NULL;
-
- printk(KERN_INFO "i2o: Checking for PCI I2O controllers...\n");
-
- if ((pdev->class & 0xff) > 1) {
- printk(KERN_WARNING "i2o: %s does not support I2O 1.5 "
- "(skipping).\n", pci_name(pdev));
- return -ENODEV;
- }
-
- if ((rc = pci_enable_device(pdev))) {
- printk(KERN_WARNING "i2o: couldn't enable device %s\n",
- pci_name(pdev));
- return rc;
- }
-
- if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
- printk(KERN_WARNING "i2o: no suitable DMA found for %s\n",
- pci_name(pdev));
- rc = -ENODEV;
- goto disable;
- }
-
- pci_set_master(pdev);
-
- c = i2o_iop_alloc();
- if (IS_ERR(c)) {
- printk(KERN_ERR "i2o: couldn't allocate memory for %s\n",
- pci_name(pdev));
- rc = PTR_ERR(c);
- goto disable;
- } else
- printk(KERN_INFO "%s: controller found (%s)\n", c->name,
- pci_name(pdev));
-
- c->pdev = pdev;
- c->device.parent = &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 "%s: Symbios FC920 workarounds activated.\n",
- c->name);
- }
-
- if (pdev->subsystem_vendor == PCI_VENDOR_ID_PROMISE) {
- /*
- * Expose the ship behind i960 for initialization, or it will
- * failed
- */
- i960 = pci_get_slot(c->pdev->bus,
- PCI_DEVFN(PCI_SLOT(c->pdev->devfn), 0));
-
- if (i960) {
- pci_write_config_word(i960, 0x42, 0);
- pci_dev_put(i960);
- }
-
- c->promise = 1;
- c->limit_sectors = 1;
- }
-
- if (pdev->subsystem_vendor == PCI_VENDOR_ID_DPT)
- c->adaptec = 1;
-
- /* 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 (pdev->subsystem_device == 0xc05a) {
- c->limit_sectors = 1;
- printk(KERN_INFO
- "%s: limit sectors per request to %d\n", c->name,
- I2O_MAX_SECTORS_LIMITED);
- }
-#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
- if (sizeof(dma_addr_t) > 4) {
- if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
- printk(KERN_INFO "%s: 64-bit DMA unavailable\n",
- c->name);
- else {
- c->pae_support = 1;
- printk(KERN_INFO "%s: using 64-bit DMA\n",
- c->name);
- }
- }
-#endif
- }
-
- if ((rc = i2o_pci_alloc(c))) {
- printk(KERN_ERR "%s: DMA / IO allocation for I2O controller "
- "failed\n", c->name);
- goto free_controller;
- }
-
- if (i2o_pci_irq_enable(c)) {
- printk(KERN_ERR "%s: unable to enable interrupts for I2O "
- "controller\n", c->name);
- goto free_pci;
- }
-
- if ((rc = i2o_iop_add(c)))
- goto uninstall;
-
- if (i960)
- pci_write_config_word(i960, 0x42, 0x03ff);
-
- 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 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);
-
- pci_disable_device(pdev);
-
- printk(KERN_INFO "%s: Controller removed.\n", c->name);
-
- put_device(&c->device);
-};
-
-/* PCI driver for I2O controller */
-static struct pci_driver i2o_pci_driver = {
- .name = "PCI_I2O",
- .id_table = i2o_pci_ids,
- .probe = i2o_pci_probe,
- .remove = i2o_pci_remove,
-};
-
-/**
- * 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);
-};
-
-MODULE_DEVICE_TABLE(pci, i2o_pci_ids);
source "drivers/staging/fbtft/Kconfig"
+source "drivers/staging/i2o/Kconfig"
+
endif # STAGING
obj-$(CONFIG_UNISYSSPAR) += unisys/
obj-$(CONFIG_COMMON_CLK_XLNX_CLKWZRD) += clocking-wizard/
obj-$(CONFIG_FB_TFT) += fbtft/
+obj-$(CONFIG_I2O) += i2o/
--- /dev/null
+menuconfig I2O
+ tristate "I2O device support"
+ depends on PCI
+ ---help---
+ The Intelligent Input/Output (I2O) architecture allows hardware
+ drivers to be split into two parts: an operating system specific
+ module called the OSM and an hardware specific module called the
+ HDM. The OSM can talk to a whole range of HDM's, and ideally the
+ HDM's are not OS dependent. This allows for the same HDM driver to
+ be used under different operating systems if the relevant OSM is in
+ place. In order for this to work, you need to have an I2O interface
+ adapter card in your computer. This card contains a special I/O
+ processor (IOP), thus allowing high speeds since the CPU does not
+ have to deal with I/O.
+
+ If you say Y here, you will get a choice of interface adapter
+ drivers and OSM's with the following questions.
+
+ To compile this support as a module, choose M here: the
+ modules will be called i2o_core.
+
+ If unsure, say N.
+
+if I2O
+
+config I2O_LCT_NOTIFY_ON_CHANGES
+ bool "Enable LCT notification"
+ default y
+ ---help---
+ Only say N here if you have a I2O controller from SUN. The SUN
+ firmware doesn't support LCT notification on changes. If this option
+ is enabled on such a controller the driver will hang up in a endless
+ loop. On all other controllers say Y.
+
+ If unsure, say Y.
+
+config I2O_EXT_ADAPTEC
+ bool "Enable Adaptec extensions"
+ default y
+ ---help---
+ Say Y for support of raidutils for Adaptec I2O controllers. You also
+ have to say Y to "I2O Configuration support", "I2O SCSI OSM" below
+ and to "SCSI generic support" under "SCSI device configuration".
+
+config I2O_EXT_ADAPTEC_DMA64
+ bool "Enable 64-bit DMA"
+ depends on I2O_EXT_ADAPTEC && ( 64BIT || HIGHMEM64G )
+ default y
+ ---help---
+ Say Y for support of 64-bit DMA transfer mode on Adaptec I2O
+ controllers.
+ Note: You need at least firmware version 3709.
+
+config I2O_CONFIG
+ tristate "I2O Configuration support"
+ depends on VIRT_TO_BUS
+ ---help---
+ Say Y for support of the configuration interface for the I2O adapters.
+ If you have a RAID controller from Adaptec and you want to use the
+ raidutils to manage your RAID array, you have to say Y here.
+
+ To compile this support as a module, choose M here: the
+ module will be called i2o_config.
+
+ Note: If you want to use the new API you have to download the
+ i2o_config patch from http://i2o.shadowconnect.com/
+
+config I2O_CONFIG_OLD_IOCTL
+ bool "Enable ioctls (OBSOLETE)"
+ depends on I2O_CONFIG
+ default y
+ ---help---
+ Enables old ioctls.
+
+config I2O_BUS
+ tristate "I2O Bus Adapter OSM"
+ ---help---
+ Include support for the I2O Bus Adapter OSM. The Bus Adapter OSM
+ provides access to the busses on the I2O controller. The main purpose
+ is to rescan the bus to find new devices.
+
+ To compile this support as a module, choose M here: the
+ module will be called i2o_bus.
+
+config I2O_BLOCK
+ tristate "I2O Block OSM"
+ depends on BLOCK
+ ---help---
+ Include support for the I2O Block OSM. The Block OSM presents disk
+ and other structured block devices to the operating system. If you
+ are using an RAID controller, you could access the array only by
+ the Block OSM driver. But it is possible to access the single disks
+ by the SCSI OSM driver, for example to monitor the disks.
+
+ To compile this support as a module, choose M here: the
+ module will be called i2o_block.
+
+config I2O_SCSI
+ tristate "I2O SCSI OSM"
+ depends on SCSI
+ ---help---
+ Allows direct SCSI access to SCSI devices on a SCSI or FibreChannel
+ I2O controller. You can use both the SCSI and Block OSM together if
+ you wish. To access a RAID array, you must use the Block OSM driver.
+ But you could use the SCSI OSM driver to monitor the single disks.
+
+ To compile this support as a module, choose M here: the
+ module will be called i2o_scsi.
+
+config I2O_PROC
+ tristate "I2O /proc support"
+ ---help---
+ If you say Y here and to "/proc file system support", you will be
+ able to read I2O related information from the virtual directory
+ /proc/i2o.
+
+ To compile this support as a module, choose M here: the
+ module will be called i2o_proc.
+
+endif # I2O
--- /dev/null
+#
+# Makefile for the kernel I2O OSM.
+#
+# Note : at this point, these files are compiled on all systems.
+# 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 memory.o
+i2o_bus-y += bus-osm.o
+i2o_config-y += config-osm.o
+obj-$(CONFIG_I2O) += i2o_core.o
+obj-$(CONFIG_I2O_CONFIG)+= i2o_config.o
+obj-$(CONFIG_I2O_BUS) += i2o_bus.o
+obj-$(CONFIG_I2O_BLOCK) += i2o_block.o
+obj-$(CONFIG_I2O_SCSI) += i2o_scsi.o
+obj-$(CONFIG_I2O_PROC) += i2o_proc.o
--- /dev/null
+
+ 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 Häkkinen, University of Helsinki Finland
+ LAN OSM code
+ /Proc interface to LAN class
+ Bug fixes
+ Core code extensions
+
+Taneli Vähäkangas, 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 Commission
+ 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)
--- /dev/null
+
+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. Setting 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 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 *(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 retrieved. 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 appropriately:
+
+ 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 appropriately:
+
+ 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 appropriately:
+
+ 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 appropriately:
+
+ 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 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 *(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
--- /dev/null
+/*
+ * Bus Adapter OSM
+ *
+ * Copyright (C) 2005 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 "i2o.h"
+
+#define OSM_NAME "bus-osm"
+#define OSM_VERSION "1.317"
+#define OSM_DESCRIPTION "I2O Bus Adapter OSM"
+
+static struct i2o_driver i2o_bus_driver;
+
+/* Bus OSM class handling definition */
+static struct i2o_class_id i2o_bus_class_id[] = {
+ {I2O_CLASS_BUS_ADAPTER},
+ {I2O_CLASS_END}
+};
+
+/**
+ * i2o_bus_scan - Scan the bus for new devices
+ * @dev: I2O device of the bus, which should be scanned
+ *
+ * Scans the bus dev for new / removed devices. After the scan a new LCT
+ * will be fetched automatically.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int i2o_bus_scan(struct i2o_device *dev)
+{
+ struct i2o_message *msg;
+
+ msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return -ETIMEDOUT;
+
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_BUS_SCAN << 24 | HOST_TID << 12 | dev->lct_data.
+ tid);
+
+ return i2o_msg_post_wait(dev->iop, msg, 60);
+};
+
+/**
+ * i2o_bus_store_scan - Scan the I2O Bus Adapter
+ * @d: device which should be scanned
+ * @attr: device_attribute
+ * @buf: output buffer
+ * @count: buffer size
+ *
+ * Returns count.
+ */
+static ssize_t i2o_bus_store_scan(struct device *d,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(d);
+ int rc;
+
+ if ((rc = i2o_bus_scan(i2o_dev)))
+ osm_warn("bus scan failed %d\n", rc);
+
+ return count;
+}
+
+/* Bus Adapter OSM device attributes */
+static DEVICE_ATTR(scan, S_IWUSR, NULL, i2o_bus_store_scan);
+
+/**
+ * i2o_bus_probe - verify if dev is a I2O Bus Adapter device and install it
+ * @dev: device to verify if it is a I2O Bus Adapter device
+ *
+ * Because we want all Bus Adapters always return 0.
+ * Except when we fail. Then we are sad.
+ *
+ * Returns 0, except when we fail to excel.
+ */
+static int i2o_bus_probe(struct device *dev)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(get_device(dev));
+ int rc;
+
+ rc = device_create_file(dev, &dev_attr_scan);
+ if (rc)
+ goto err_out;
+
+ osm_info("device added (TID: %03x)\n", i2o_dev->lct_data.tid);
+
+ return 0;
+
+err_out:
+ put_device(dev);
+ return rc;
+};
+
+/**
+ * i2o_bus_remove - remove the I2O Bus Adapter device from the system again
+ * @dev: I2O Bus Adapter device which should be removed
+ *
+ * Always returns 0.
+ */
+static int i2o_bus_remove(struct device *dev)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+
+ device_remove_file(dev, &dev_attr_scan);
+
+ put_device(dev);
+
+ osm_info("device removed (TID: %03x)\n", i2o_dev->lct_data.tid);
+
+ return 0;
+};
+
+/* Bus Adapter OSM driver struct */
+static struct i2o_driver i2o_bus_driver = {
+ .name = OSM_NAME,
+ .classes = i2o_bus_class_id,
+ .driver = {
+ .probe = i2o_bus_probe,
+ .remove = i2o_bus_remove,
+ },
+};
+
+/**
+ * i2o_bus_init - Bus Adapter OSM initialization function
+ *
+ * Only register the Bus Adapter OSM in the I2O core.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_bus_init(void)
+{
+ int rc;
+
+ printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+ /* Register Bus Adapter OSM into I2O core */
+ rc = i2o_driver_register(&i2o_bus_driver);
+ if (rc) {
+ osm_err("Could not register Bus Adapter OSM\n");
+ return rc;
+ }
+
+ return 0;
+};
+
+/**
+ * i2o_bus_exit - Bus Adapter OSM exit function
+ *
+ * Unregisters Bus Adapter OSM from I2O core.
+ */
+static void __exit i2o_bus_exit(void)
+{
+ i2o_driver_unregister(&i2o_bus_driver);
+};
+
+MODULE_AUTHOR("Markus Lidel <Markus.Lidel@shadowconnect.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_bus_init);
+module_exit(i2o_bus_exit);
--- /dev/null
+/*
+ * Configuration OSM
+ *
+ * Copyright (C) 2005 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 "i2o.h"
+#include <linux/dcache.h>
+#include <linux/namei.h>
+#include <linux/fs.h>
+
+#include <asm/uaccess.h>
+
+#define OSM_NAME "config-osm"
+#define OSM_VERSION "1.323"
+#define OSM_DESCRIPTION "I2O Configuration OSM"
+
+/* access mode user rw */
+#define S_IWRSR (S_IRUSR | S_IWUSR)
+
+static struct i2o_driver i2o_config_driver;
+
+/* Config OSM driver struct */
+static struct i2o_driver i2o_config_driver = {
+ .name = OSM_NAME,
+};
+
+#ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
+#include "i2o_config.c"
+#endif
+
+/**
+ * i2o_config_init - Configuration OSM initialization function
+ *
+ * Registers Configuration OSM in the I2O core and if old ioctl's are
+ * compiled in initialize them.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+static int __init i2o_config_init(void)
+{
+ printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+ if (i2o_driver_register(&i2o_config_driver)) {
+ osm_err("handler register failed.\n");
+ return -EBUSY;
+ }
+#ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
+ if (i2o_config_old_init()) {
+ osm_err("old config handler initialization failed\n");
+ i2o_driver_unregister(&i2o_config_driver);
+ return -EBUSY;
+ }
+#endif
+
+ return 0;
+}
+
+/**
+ * i2o_config_exit - Configuration OSM exit function
+ *
+ * If old ioctl's are compiled in exit remove them and unregisters
+ * Configuration OSM from I2O core.
+ */
+static void i2o_config_exit(void)
+{
+#ifdef CONFIG_I2O_CONFIG_OLD_IOCTL
+ i2o_config_old_exit();
+#endif
+
+ i2o_driver_unregister(&i2o_config_driver);
+}
+
+MODULE_AUTHOR("Markus Lidel <Markus.Lidel@shadowconnect.com>");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_config_init);
+module_exit(i2o_config_exit);
--- /dev/null
+/*
+ * I2O core internal declarations
+ *
+ * Copyright (C) 2005 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.
+ */
+
+/* Exec-OSM */
+extern struct i2o_driver i2o_exec_driver;
+extern int i2o_exec_lct_get(struct i2o_controller *);
+
+extern int __init i2o_exec_init(void);
+extern void i2o_exec_exit(void);
+
+/* driver */
+extern struct bus_type i2o_bus_type;
+
+extern int i2o_driver_dispatch(struct i2o_controller *, u32);
+
+extern int __init i2o_driver_init(void);
+extern void i2o_driver_exit(void);
+
+/* PCI */
+extern int __init i2o_pci_init(void);
+extern void __exit i2o_pci_exit(void);
+
+/* device */
+extern const struct attribute_group *i2o_device_groups[];
+
+extern void i2o_device_remove(struct i2o_device *);
+extern int i2o_device_parse_lct(struct i2o_controller *);
+
+int i2o_parm_issue(struct i2o_device *i2o_dev, int cmd, void *oplist,
+ int oplen, void *reslist, int reslen);
+
+/* IOP */
+extern struct i2o_controller *i2o_iop_alloc(void);
+
+/**
+ * i2o_iop_free - Free the i2o_controller struct
+ * @c: I2O controller to free
+ */
+static inline void i2o_iop_free(struct i2o_controller *c)
+{
+ i2o_pool_free(&c->in_msg);
+ kfree(c);
+}
+
+extern int i2o_iop_add(struct i2o_controller *);
+extern void i2o_iop_remove(struct i2o_controller *);
+
+/* control registers relative to c->base */
+#define I2O_IRQ_STATUS 0x30
+#define I2O_IRQ_MASK 0x34
+#define I2O_IN_PORT 0x40
+#define I2O_OUT_PORT 0x44
+
+/* Motorola/Freescale specific register offset */
+#define I2O_MOTOROLA_PORT_OFFSET 0x10400
+
+#define I2O_IRQ_OUTBOUND_POST 0x00000008
--- /dev/null
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include "i2o.h"
+
+static void i2o_report_util_cmd(u8 cmd);
+static void i2o_report_exec_cmd(u8 cmd);
+static void i2o_report_fail_status(u8 req_status, u32 * msg);
+static void i2o_report_common_status(u8 req_status);
+static void i2o_report_common_dsc(u16 detailed_status);
+
+/*
+ * 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;
+
+ 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)
+{
+#ifdef DEBUG
+ u32 *msg = (u32 *) m;
+ 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
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following fail status are common to all classes.
+ * The preserved message must be handled in the reply handler.
+ */
+static 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\n", (msg[4] >> 16) & 0xFF);
+ if (msg[4] & (1 << 16))
+ printk(KERN_DEBUG "(FormatError), "
+ "this msg can never be delivered/processed.\n");
+ if (msg[4] & (1 << 17))
+ printk(KERN_DEBUG "(PathError), "
+ "this msg can no longer be delivered/processed.\n");
+ if (msg[4] & (1 << 18))
+ printk(KERN_DEBUG "(PathState), "
+ "the system state does not allow delivery.\n");
+ if (msg[4] & (1 << 19))
+ printk(KERN_DEBUG
+ "(Congestion), resources temporarily not available;"
+ "do not retry immediately.\n");
+}
+
+/*
+ * Used for error reporting/debugging purposes.
+ * Following reply status are common to all classes.
+ */
+static 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_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_message);
--- /dev/null
+/*
+ * 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 "i2o.h"
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include "core.h"
+
+/**
+ * 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;
+
+ msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(cmd << 24 | HOST_TID << 12 | dev->lct_data.tid);
+ msg->body[0] = cpu_to_le32(type);
+
+ return i2o_msg_post_wait(dev->iop, msg, 60);
+}
+
+/**
+ * i2o_device_claim - claim a device for use by an OSM
+ * @dev: I2O device to claim
+ *
+ * Do the leg work to assign a device to a given OSM. If the claim succeeds,
+ * the owner is the primary. 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;
+
+ mutex_lock(&dev->lock);
+
+ rc = i2o_device_issue_claim(dev, I2O_CMD_UTIL_CLAIM, I2O_CLAIM_PRIMARY);
+ if (!rc)
+ pr_debug("i2o: claim of device %d succeeded\n",
+ dev->lct_data.tid);
+ else
+ pr_debug("i2o: claim of device %d failed %d\n",
+ dev->lct_data.tid, rc);
+
+ mutex_unlock(&dev->lock);
+
+ return rc;
+}
+
+/**
+ * i2o_device_claim_release - release a device that the OSM is using
+ * @dev: device to release
+ *
+ * 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;
+
+ mutex_lock(&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;
+
+ ssleep(1);
+ }
+
+ if (!rc)
+ pr_debug("i2o: claim release of device %d succeeded\n",
+ dev->lct_data.tid);
+ else
+ pr_debug("i2o: claim release of device %d failed %d\n",
+ dev->lct_data.tid, rc);
+
+ mutex_unlock(&dev->lock);
+
+ return rc;
+}
+
+/**
+ * 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);
+
+ pr_debug("i2o: device %s released\n", dev_name(dev));
+
+ kfree(i2o_dev);
+}
+
+/**
+ * class_id_show - Displays class id of I2O device
+ * @dev: device of which the class id should be displayed
+ * @attr: pointer to device attribute
+ * @buf: buffer into which the class id should be printed
+ *
+ * Returns the number of bytes which are printed into the buffer.
+ */
+static ssize_t class_id_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+
+ sprintf(buf, "0x%03x\n", i2o_dev->lct_data.class_id);
+ return strlen(buf) + 1;
+}
+static DEVICE_ATTR_RO(class_id);
+
+/**
+ * tid_show - Displays TID of I2O device
+ * @dev: device of which the TID should be displayed
+ * @attr: pointer to device attribute
+ * @buf: buffer into which the TID should be printed
+ *
+ * Returns the number of bytes which are printed into the buffer.
+ */
+static ssize_t tid_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct i2o_device *i2o_dev = to_i2o_device(dev);
+
+ sprintf(buf, "0x%03x\n", i2o_dev->lct_data.tid);
+ return strlen(buf) + 1;
+}
+static DEVICE_ATTR_RO(tid);
+
+/* I2O device attributes */
+static struct attribute *i2o_device_attrs[] = {
+ &dev_attr_class_id.attr,
+ &dev_attr_tid.attr,
+ NULL,
+};
+
+static const struct attribute_group i2o_device_group = {
+ .attrs = i2o_device_attrs,
+};
+
+const struct attribute_group *i2o_device_groups[] = {
+ &i2o_device_group,
+ NULL,
+};
+
+/**
+ * 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 = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return ERR_PTR(-ENOMEM);
+
+ INIT_LIST_HEAD(&dev->list);
+ mutex_init(&dev->lock);
+
+ dev->device.bus = &i2o_bus_type;
+ dev->device.release = &i2o_device_release;
+
+ return dev;
+}
+
+/**
+ * i2o_device_add - allocate a new I2O device and add it to the IOP
+ * @c: I2O controller that 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 zero on success, or a -ve errno.
+ */
+static int i2o_device_add(struct i2o_controller *c, i2o_lct_entry *entry)
+{
+ struct i2o_device *i2o_dev, *tmp;
+ int rc;
+
+ i2o_dev = i2o_device_alloc();
+ if (IS_ERR(i2o_dev)) {
+ printk(KERN_ERR "i2o: unable to allocate i2o device\n");
+ return PTR_ERR(i2o_dev);
+ }
+
+ i2o_dev->lct_data = *entry;
+
+ dev_set_name(&i2o_dev->device, "%d:%03x", c->unit,
+ i2o_dev->lct_data.tid);
+
+ i2o_dev->iop = c;
+ i2o_dev->device.parent = &c->device;
+
+ rc = device_register(&i2o_dev->device);
+ if (rc)
+ goto err;
+
+ list_add_tail(&i2o_dev->list, &c->devices);
+
+ /* create user entries for this device */
+ tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.user_tid);
+ if (tmp && (tmp != i2o_dev)) {
+ rc = sysfs_create_link(&i2o_dev->device.kobj,
+ &tmp->device.kobj, "user");
+ if (rc)
+ goto unreg_dev;
+ }
+
+ /* create user entries referring to this device */
+ list_for_each_entry(tmp, &c->devices, list)
+ if ((tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+ && (tmp != i2o_dev)) {
+ rc = sysfs_create_link(&tmp->device.kobj,
+ &i2o_dev->device.kobj, "user");
+ if (rc)
+ goto rmlink1;
+ }
+
+ /* create parent entries for this device */
+ tmp = i2o_iop_find_device(i2o_dev->iop, i2o_dev->lct_data.parent_tid);
+ if (tmp && (tmp != i2o_dev)) {
+ rc = sysfs_create_link(&i2o_dev->device.kobj,
+ &tmp->device.kobj, "parent");
+ if (rc)
+ goto rmlink1;
+ }
+
+ /* create parent entries referring to this device */
+ list_for_each_entry(tmp, &c->devices, list)
+ if ((tmp->lct_data.parent_tid == i2o_dev->lct_data.tid)
+ && (tmp != i2o_dev)) {
+ rc = sysfs_create_link(&tmp->device.kobj,
+ &i2o_dev->device.kobj, "parent");
+ if (rc)
+ goto rmlink2;
+ }
+
+ i2o_driver_notify_device_add_all(i2o_dev);
+
+ pr_debug("i2o: device %s added\n", dev_name(&i2o_dev->device));
+
+ return 0;
+
+rmlink2:
+ /* If link creating failed halfway, we loop whole list to cleanup.
+ * And we don't care wrong removing of link, because sysfs_remove_link
+ * will take care of it.
+ */
+ 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");
+ }
+ sysfs_remove_link(&i2o_dev->device.kobj, "parent");
+rmlink1:
+ list_for_each_entry(tmp, &c->devices, list)
+ if (tmp->lct_data.user_tid == i2o_dev->lct_data.tid)
+ sysfs_remove_link(&tmp->device.kobj, "user");
+ sysfs_remove_link(&i2o_dev->device.kobj, "user");
+unreg_dev:
+ list_del(&i2o_dev->list);
+ device_unregister(&i2o_dev->device);
+err:
+ kfree(i2o_dev);
+ return rc;
+}
+
+/**
+ * i2o_device_remove - remove an I2O device from the I2O core
+ * @i2o_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)
+{
+ struct i2o_device *tmp;
+ struct i2o_controller *c = i2o_dev->iop;
+
+ i2o_driver_notify_device_remove_all(i2o_dev);
+
+ 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");
+ }
+ list_del(&i2o_dev->list);
+
+ device_unregister(&i2o_dev->device);
+}
+
+/**
+ * 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;
+ u32 *dlct = c->dlct.virt;
+ int max = 0, i = 0;
+ u16 table_size;
+ u32 buf;
+
+ mutex_lock(&c->lct_lock);
+
+ kfree(c->lct);
+
+ buf = le32_to_cpu(*dlct++);
+ table_size = buf & 0xffff;
+
+ lct = c->lct = kmalloc(table_size * 4, GFP_KERNEL);
+ if (!lct) {
+ mutex_unlock(&c->lct_lock);
+ return -ENOMEM;
+ }
+
+ lct->lct_ver = buf >> 28;
+ lct->boot_tid = buf >> 16 & 0xfff;
+ lct->table_size = table_size;
+ lct->change_ind = le32_to_cpu(*dlct++);
+ lct->iop_flags = le32_to_cpu(*dlct++);
+
+ table_size -= 3;
+
+ pr_debug("%s: LCT has %d entries (LCT size: %d)\n", c->name, max,
+ lct->table_size);
+
+ while (table_size > 0) {
+ i2o_lct_entry *entry = &lct->lct_entry[max];
+ int found = 0;
+
+ buf = le32_to_cpu(*dlct++);
+ entry->entry_size = buf & 0xffff;
+ entry->tid = buf >> 16 & 0xfff;
+
+ entry->change_ind = le32_to_cpu(*dlct++);
+ entry->device_flags = le32_to_cpu(*dlct++);
+
+ buf = le32_to_cpu(*dlct++);
+ entry->class_id = buf & 0xfff;
+ entry->version = buf >> 12 & 0xf;
+ entry->vendor_id = buf >> 16;
+
+ entry->sub_class = le32_to_cpu(*dlct++);
+
+ buf = le32_to_cpu(*dlct++);
+ entry->user_tid = buf & 0xfff;
+ entry->parent_tid = buf >> 12 & 0xfff;
+ entry->bios_info = buf >> 24;
+
+ memcpy(&entry->identity_tag, dlct, 8);
+ dlct += 2;
+
+ entry->event_capabilities = le32_to_cpu(*dlct++);
+
+ /* add new devices, which are new in the LCT */
+ list_for_each_entry_safe(dev, tmp, &c->devices, list) {
+ if (entry->tid == dev->lct_data.tid) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ i2o_device_add(c, entry);
+
+ table_size -= 9;
+ max++;
+ }
+
+ /* 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);
+ }
+
+ mutex_unlock(&c->lct_lock);
+
+ return 0;
+}
+
+/*
+ * 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;
+ 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))
+ return -ENOMEM;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg)) {
+ i2o_dma_free(dev, &res);
+ return PTR_ERR(msg);
+ }
+
+ i = 0;
+ msg->u.head[1] =
+ cpu_to_le32(cmd << 24 | HOST_TID << 12 | i2o_dev->lct_data.tid);
+ msg->body[i++] = cpu_to_le32(0x00000000);
+ msg->body[i++] = cpu_to_le32(0x4C000000 | oplen); /* OperationList */
+ memcpy(&msg->body[i], oplist, oplen);
+ i += (oplen / 4 + (oplen % 4 ? 1 : 0));
+ msg->body[i++] = cpu_to_le32(0xD0000000 | res.len); /* ResultList */
+ msg->body[i++] = cpu_to_le32(res.phys);
+
+ msg->u.head[0] =
+ cpu_to_le32(I2O_MESSAGE_SIZE(i + sizeof(struct i2o_message) / 4) |
+ SGL_OFFSET_5);
+
+ rc = i2o_msg_post_wait_mem(c, msg, 10, &res);
+
+ /* This only looks like a memory leak - don't "fix" it. */
+ if (rc == -ETIMEDOUT)
+ return rc;
+
+ memcpy(reslist, res.virt, res.len);
+ i2o_dma_free(dev, &res);
+
+ return rc;
+}
+
+/*
+ * 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)
+{
+ u32 opblk[] = { cpu_to_le32(0x00000001),
+ cpu_to_le32((u16) group << 16 | I2O_PARAMS_FIELD_GET),
+ cpu_to_le32((s16) field << 16 | 0x00000001)
+ };
+ u8 *resblk; /* 8 bytes for header */
+ int rc;
+
+ resblk = kmalloc(buflen + 8, GFP_KERNEL);
+ if (!resblk)
+ return -ENOMEM;
+
+ rc = i2o_parm_issue(i2o_dev, I2O_CMD_UTIL_PARAMS_GET, opblk,
+ sizeof(opblk), resblk, buflen + 8);
+
+ memcpy(buf, resblk + 8, buflen); /* cut off header */
+
+ kfree(resblk);
+
+ return rc;
+}
+
+/*
+ * 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;
+}
+
+EXPORT_SYMBOL(i2o_device_claim);
+EXPORT_SYMBOL(i2o_device_claim_release);
+EXPORT_SYMBOL(i2o_parm_field_get);
+EXPORT_SYMBOL(i2o_parm_table_get);
+EXPORT_SYMBOL(i2o_parm_issue);
--- /dev/null
+/*
+ * 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 "i2o.h"
+#include <linux/workqueue.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include "core.h"
+
+#define OSM_NAME "i2o"
+
+/* max_drivers - Maximum I2O drivers (OSMs) which could be registered */
+static 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 drivers lock and array */
+static spinlock_t i2o_drivers_lock;
+static struct i2o_driver **i2o_drivers;
+
+/**
+ * i2o_bus_match - Tell if I2O device class id matches 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 bus type */
+struct bus_type i2o_bus_type = {
+ .name = "i2o",
+ .match = i2o_bus_match,
+ .dev_groups = i2o_device_groups,
+};
+
+/**
+ * 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)
+{
+ struct i2o_controller *c;
+ int i;
+ int rc = 0;
+ unsigned long flags;
+
+ osm_debug("Register driver %s\n", drv->name);
+
+ if (drv->event) {
+ drv->event_queue = alloc_workqueue("%s", WQ_MEM_RECLAIM, 1,
+ drv->name);
+ if (!drv->event_queue) {
+ osm_err("Could not initialize event queue for driver "
+ "%s\n", drv->name);
+ return -EFAULT;
+ }
+ osm_debug("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) {
+ osm_err("too many drivers registered, increase "
+ "max_drivers\n");
+ spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+ rc = -EFAULT;
+ goto out;
+ }
+
+ drv->context = i;
+ i2o_drivers[i] = drv;
+
+ spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+
+ osm_debug("driver %s gets context id %d\n", drv->name, drv->context);
+
+ list_for_each_entry(c, &i2o_controllers, list) {
+ struct i2o_device *i2o_dev;
+
+ i2o_driver_notify_controller_add(drv, c);
+ list_for_each_entry(i2o_dev, &c->devices, list)
+ i2o_driver_notify_device_add(drv, i2o_dev);
+ }
+
+ rc = driver_register(&drv->driver);
+ if (rc)
+ goto out;
+
+ return 0;
+out:
+ if (drv->event_queue) {
+ destroy_workqueue(drv->event_queue);
+ drv->event_queue = NULL;
+ }
+
+ 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)
+{
+ struct i2o_controller *c;
+ unsigned long flags;
+
+ osm_debug("unregister driver %s\n", drv->name);
+
+ driver_unregister(&drv->driver);
+
+ list_for_each_entry(c, &i2o_controllers, list) {
+ struct i2o_device *i2o_dev;
+
+ list_for_each_entry(i2o_dev, &c->devices, list)
+ i2o_driver_notify_device_remove(drv, i2o_dev);
+
+ i2o_driver_notify_controller_remove(drv, c);
+ }
+
+ 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;
+ osm_debug("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
+ *
+ * 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_driver *drv;
+ struct i2o_message *msg = i2o_msg_out_to_virt(c, m);
+ u32 context = le32_to_cpu(msg->u.s.icntxt);
+ unsigned long flags;
+
+ if (unlikely(context >= i2o_max_drivers)) {
+ osm_warn("%s: Spurious reply to unknown driver %d\n", c->name,
+ context);
+ return -EIO;
+ }
+
+ spin_lock_irqsave(&i2o_drivers_lock, flags);
+ drv = i2o_drivers[context];
+ spin_unlock_irqrestore(&i2o_drivers_lock, flags);
+
+ if (unlikely(!drv)) {
+ osm_warn("%s: Spurious reply to unknown driver %d\n", c->name,
+ context);
+ return -EIO;
+ }
+
+ if ((le32_to_cpu(msg->u.head[1]) >> 24) == I2O_CMD_UTIL_EVT_REGISTER) {
+ struct i2o_device *dev, *tmp;
+ struct i2o_event *evt;
+ u16 size;
+ u16 tid = le32_to_cpu(msg->u.head[1]) & 0xfff;
+
+ osm_debug("event received from device %d\n", tid);
+
+ if (!drv->event)
+ return -EIO;
+
+ /* cut of header from message size (in 32-bit words) */
+ size = (le32_to_cpu(msg->u.head[0]) >> 16) - 5;
+
+ evt = kzalloc(size * 4 + sizeof(*evt), GFP_ATOMIC);
+ if (!evt)
+ return -ENOMEM;
+
+ evt->size = size;
+ evt->tcntxt = le32_to_cpu(msg->u.s.tcntxt);
+ evt->event_indicator = le32_to_cpu(msg->body[0]);
+ memcpy(&evt->data, &msg->body[1], size * 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, drv->event);
+ queue_work(drv->event_queue, &evt->work);
+ return 1;
+ }
+
+ if (unlikely(!drv->reply)) {
+ osm_debug("%s: Reply to driver %s, but no reply function"
+ " defined!\n", c->name, drv->name);
+ return -EIO;
+ }
+
+ return drv->reply(c, m, msg);
+}
+
+/**
+ * i2o_driver_notify_controller_add_all - Send notify of added controller
+ * @c: newly added controller
+ *
+ * Send notifications to all registered drivers that a new controller was
+ * added.
+ */
+void i2o_driver_notify_controller_add_all(struct i2o_controller *c)
+{
+ int i;
+ struct i2o_driver *drv;
+
+ for (i = 0; i < i2o_max_drivers; i++) {
+ drv = i2o_drivers[i];
+
+ if (drv)
+ i2o_driver_notify_controller_add(drv, c);
+ }
+}
+
+/**
+ * i2o_driver_notify_controller_remove_all - Send notify of removed controller
+ * @c: controller that is being removed
+ *
+ * Send notifications to all registered drivers that a controller was
+ * removed.
+ */
+void i2o_driver_notify_controller_remove_all(struct i2o_controller *c)
+{
+ int i;
+ struct i2o_driver *drv;
+
+ for (i = 0; i < i2o_max_drivers; i++) {
+ drv = i2o_drivers[i];
+
+ if (drv)
+ i2o_driver_notify_controller_remove(drv, c);
+ }
+}
+
+/**
+ * i2o_driver_notify_device_add_all - Send notify of added device
+ * @i2o_dev: newly added I2O device
+ *
+ * Send notifications to all registered drivers that a device was added.
+ */
+void i2o_driver_notify_device_add_all(struct i2o_device *i2o_dev)
+{
+ int i;
+ struct i2o_driver *drv;
+
+ for (i = 0; i < i2o_max_drivers; i++) {
+ drv = i2o_drivers[i];
+
+ if (drv)
+ i2o_driver_notify_device_add(drv, i2o_dev);
+ }
+}
+
+/**
+ * i2o_driver_notify_device_remove_all - Send notify of removed device
+ * @i2o_dev: device that is being removed
+ *
+ * Send notifications to all registered drivers that a device was removed.
+ */
+void i2o_driver_notify_device_remove_all(struct i2o_device *i2o_dev)
+{
+ int i;
+ struct i2o_driver *drv;
+
+ for (i = 0; i < i2o_max_drivers; i++) {
+ drv = i2o_drivers[i];
+
+ if (drv)
+ i2o_driver_notify_device_remove(drv, i2o_dev);
+ }
+}
+
+/**
+ * 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;
+
+ spin_lock_init(&i2o_drivers_lock);
+
+ if ((i2o_max_drivers < 2) || (i2o_max_drivers > 64)) {
+ osm_warn("max_drivers set to %d, but must be >=2 and <= 64\n",
+ i2o_max_drivers);
+ i2o_max_drivers = I2O_MAX_DRIVERS;
+ }
+ osm_info("max drivers = %d\n", i2o_max_drivers);
+
+ i2o_drivers =
+ kcalloc(i2o_max_drivers, sizeof(*i2o_drivers), GFP_KERNEL);
+ if (!i2o_drivers)
+ return -ENOMEM;
+
+ 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 frees driver array.
+ */
+void i2o_driver_exit(void)
+{
+ bus_unregister(&i2o_bus_type);
+ kfree(i2o_drivers);
+};
+
+EXPORT_SYMBOL(i2o_driver_register);
+EXPORT_SYMBOL(i2o_driver_unregister);
+EXPORT_SYMBOL(i2o_driver_notify_controller_add_all);
+EXPORT_SYMBOL(i2o_driver_notify_controller_remove_all);
+EXPORT_SYMBOL(i2o_driver_notify_device_add_all);
+EXPORT_SYMBOL(i2o_driver_notify_device_remove_all);
--- /dev/null
+/*
+ * 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 Sievänen <Juha.Sievanen@cs.Helsinki.FI>
+ * Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ * Deepak Saxena <deepak@plexity.net>
+ * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>:
+ * 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 "i2o.h"
+#include <linux/delay.h>
+#include <linux/workqueue.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/sched.h> /* wait_event_interruptible_timeout() needs this */
+#include <asm/param.h> /* HZ */
+#include "core.h"
+
+#define OSM_NAME "exec-osm"
+
+struct i2o_driver i2o_exec_driver;
+
+/* 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 */
+ spinlock_t lock; /* lock before modifying */
+};
+
+/* Work struct needed to handle LCT NOTIFY replies */
+struct i2o_exec_lct_notify_work {
+ struct work_struct work; /* work struct */
+ struct i2o_controller *c; /* controller on which the LCT NOTIFY
+ was received */
+};
+
+/* Exec OSM class handling definition */
+static struct i2o_class_id i2o_exec_class_id[] = {
+ {I2O_CLASS_EXECUTIVE},
+ {I2O_CLASS_END}
+};
+
+/**
+ * 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 = kzalloc(sizeof(*wait), GFP_KERNEL);
+ if (!wait)
+ return NULL;
+
+ INIT_LIST_HEAD(&wait->list);
+ spin_lock_init(&wait->lock);
+
+ return wait;
+};
+
+/**
+ * i2o_exec_wait_free - Free an i2o_exec_wait struct
+ * @wait: I2O wait data which should be cleaned up
+ */
+static void i2o_exec_wait_free(struct i2o_exec_wait *wait)
+{
+ kfree(wait);
+};
+
+/**
+ * i2o_msg_post_wait_mem - Post and wait a message with DMA buffers
+ * @c: controller
+ * @msg: 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, negative error code on timeout or positive error
+ * code from reply.
+ */
+int i2o_msg_post_wait_mem(struct i2o_controller *c, struct i2o_message *msg,
+ unsigned long timeout, struct i2o_dma *dma)
+{
+ DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wq);
+ struct i2o_exec_wait *wait;
+ static u32 tcntxt = 0x80000000;
+ unsigned long flags;
+ int rc = 0;
+
+ wait = i2o_exec_wait_alloc();
+ if (!wait) {
+ i2o_msg_nop(c, msg);
+ return -ENOMEM;
+ }
+
+ if (tcntxt == 0xffffffff)
+ tcntxt = 0x80000000;
+
+ if (dma)
+ wait->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.
+ */
+ msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
+ wait->tcntxt = tcntxt++;
+ msg->u.s.tcntxt = cpu_to_le32(wait->tcntxt);
+
+ wait->wq = &wq;
+ /*
+ * we add elements to the head, because if a entry in the list will
+ * never be removed, we have to iterate over it every time
+ */
+ list_add(&wait->list, &i2o_exec_wait_list);
+
+ /*
+ * 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, msg);
+
+ wait_event_interruptible_timeout(wq, wait->complete, timeout * HZ);
+
+ spin_lock_irqsave(&wait->lock, flags);
+
+ wait->wq = NULL;
+
+ if (wait->complete)
+ rc = le32_to_cpu(wait->msg->body[0]) >> 24;
+ 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;
+ }
+
+ spin_unlock_irqrestore(&wait->lock, flags);
+
+ if (rc != -ETIMEDOUT) {
+ i2o_flush_reply(c, wait->m);
+ i2o_exec_wait_free(wait);
+ }
+
+ 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
+ * @context: transaction context of request
+ *
+ * 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, u32 context)
+{
+ struct i2o_exec_wait *wait, *tmp;
+ unsigned long flags;
+ int rc = 1;
+
+ /*
+ * 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.
+ */
+ list_for_each_entry_safe(wait, tmp, &i2o_exec_wait_list, list) {
+ if (wait->tcntxt == context) {
+ spin_lock_irqsave(&wait->lock, flags);
+
+ list_del(&wait->list);
+
+ wait->m = m;
+ wait->msg = msg;
+ wait->complete = 1;
+
+ if (wait->wq)
+ rc = 0;
+ else
+ rc = -1;
+
+ spin_unlock_irqrestore(&wait->lock, flags);
+
+ if (rc) {
+ struct device *dev;
+
+ dev = &c->pdev->dev;
+
+ pr_debug("%s: timedout reply received!\n",
+ c->name);
+ i2o_dma_free(dev, &wait->dma);
+ i2o_exec_wait_free(wait);
+ } else
+ wake_up_interruptible(wait->wq);
+
+ return rc;
+ }
+ }
+
+ osm_warn("%s: Bogus reply in POST WAIT (tr-context: %08x)!\n", c->name,
+ context);
+
+ return -1;
+};
+
+/**
+ * i2o_exec_show_vendor_id - Displays Vendor ID of controller
+ * @d: device of which the Vendor ID should be displayed
+ * @attr: device_attribute to display
+ * @buf: buffer into which the Vendor ID should be printed
+ *
+ * Returns number of bytes printed into buffer.
+ */
+static ssize_t i2o_exec_show_vendor_id(struct device *d,
+ struct device_attribute *attr, char *buf)
+{
+ struct i2o_device *dev = to_i2o_device(d);
+ u16 id;
+
+ if (!i2o_parm_field_get(dev, 0x0000, 0, &id, 2)) {
+ sprintf(buf, "0x%04x", le16_to_cpu(id));
+ return strlen(buf) + 1;
+ }
+
+ return 0;
+};
+
+/**
+ * i2o_exec_show_product_id - Displays Product ID of controller
+ * @d: device of which the Product ID should be displayed
+ * @attr: device_attribute to display
+ * @buf: buffer into which the Product ID should be printed
+ *
+ * Returns number of bytes printed into buffer.
+ */
+static ssize_t i2o_exec_show_product_id(struct device *d,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct i2o_device *dev = to_i2o_device(d);
+ u16 id;
+
+ if (!i2o_parm_field_get(dev, 0x0000, 1, &id, 2)) {
+ sprintf(buf, "0x%04x", le16_to_cpu(id));
+ return strlen(buf) + 1;
+ }
+
+ return 0;
+};
+
+/* Exec-OSM device attributes */
+static DEVICE_ATTR(vendor_id, S_IRUGO, i2o_exec_show_vendor_id, NULL);
+static DEVICE_ATTR(product_id, S_IRUGO, i2o_exec_show_product_id, NULL);
+
+/**
+ * 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);
+ int rc;
+
+ rc = i2o_event_register(i2o_dev, &i2o_exec_driver, 0, 0xffffffff);
+ if (rc) goto err_out;
+
+ rc = device_create_file(dev, &dev_attr_vendor_id);
+ if (rc) goto err_evtreg;
+ rc = device_create_file(dev, &dev_attr_product_id);
+ if (rc) goto err_vid;
+
+ i2o_dev->iop->exec = i2o_dev;
+
+ return 0;
+
+err_vid:
+ device_remove_file(dev, &dev_attr_vendor_id);
+err_evtreg:
+ i2o_event_register(to_i2o_device(dev), &i2o_exec_driver, 0, 0);
+err_out:
+ return rc;
+};
+
+/**
+ * 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)
+{
+ device_remove_file(dev, &dev_attr_product_id);
+ device_remove_file(dev, &dev_attr_vendor_id);
+
+ i2o_event_register(to_i2o_device(dev), &i2o_exec_driver, 0, 0);
+
+ return 0;
+};
+
+#ifdef CONFIG_I2O_LCT_NOTIFY_ON_CHANGES
+/**
+ * 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.
+ */
+static 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;
+
+ mutex_lock(&c->lct_lock);
+
+ dev = &c->pdev->dev;
+
+ if (i2o_dma_realloc(dev, &c->dlct,
+ le32_to_cpu(sb->expected_lct_size))) {
+ mutex_unlock(&c->lct_lock);
+ return -ENOMEM;
+ }
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg)) {
+ mutex_unlock(&c->lct_lock);
+ return PTR_ERR(msg);
+ }
+
+ msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6);
+ msg->u.head[1] = cpu_to_le32(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
+ msg->u.s.tcntxt = cpu_to_le32(0x00000000);
+ msg->body[0] = cpu_to_le32(0xffffffff);
+ msg->body[1] = cpu_to_le32(change_ind);
+ msg->body[2] = cpu_to_le32(0xd0000000 | c->dlct.len);
+ msg->body[3] = cpu_to_le32(c->dlct.phys);
+
+ i2o_msg_post(c, msg);
+
+ mutex_unlock(&c->lct_lock);
+
+ return 0;
+}
+#endif
+
+/**
+ * i2o_exec_lct_modified - Called on LCT NOTIFY reply
+ * @_work: work struct for a specific controller
+ *
+ * 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, otherwise send LCT NOTIFY to get informed on next LCT change.
+ */
+static void i2o_exec_lct_modified(struct work_struct *_work)
+{
+ struct i2o_exec_lct_notify_work *work =
+ container_of(_work, struct i2o_exec_lct_notify_work, work);
+ u32 change_ind = 0;
+ struct i2o_controller *c = work->c;
+
+ kfree(work);
+
+ if (i2o_device_parse_lct(c) != -EAGAIN)
+ change_ind = c->lct->change_ind + 1;
+
+#ifdef CONFIG_I2O_LCT_NOTIFY_ON_CHANGES
+ i2o_exec_lct_notify(c, change_ind);
+#endif
+};
+
+/**
+ * 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)
+{
+ u32 context;
+
+ if (le32_to_cpu(msg->u.head[0]) & MSG_FAIL) {
+ struct i2o_message __iomem *pmsg;
+ u32 pm;
+
+ /*
+ * If Fail bit is set we must take the transaction context of
+ * the preserved message to find the right request again.
+ */
+
+ pm = le32_to_cpu(msg->body[3]);
+ pmsg = i2o_msg_in_to_virt(c, pm);
+ context = readl(&pmsg->u.s.tcntxt);
+
+ i2o_report_status(KERN_INFO, "i2o_core", msg);
+
+ /* Release the preserved msg */
+ i2o_msg_nop_mfa(c, pm);
+ } else
+ context = le32_to_cpu(msg->u.s.tcntxt);
+
+ if (context & 0x80000000)
+ return i2o_msg_post_wait_complete(c, m, msg, context);
+
+ if ((le32_to_cpu(msg->u.head[1]) >> 24) == I2O_CMD_LCT_NOTIFY) {
+ struct i2o_exec_lct_notify_work *work;
+
+ pr_debug("%s: LCT notify received\n", c->name);
+
+ work = kmalloc(sizeof(*work), GFP_ATOMIC);
+ if (!work)
+ return -ENOMEM;
+
+ work->c = c;
+
+ INIT_WORK(&work->work, i2o_exec_lct_modified);
+ queue_work(i2o_exec_driver.event_queue, &work->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
+ * @work: Work item in occurring event
+ *
+ * Handles events send by the Executive device. At the moment does not do
+ * anything useful.
+ */
+static void i2o_exec_event(struct work_struct *work)
+{
+ struct i2o_event *evt = container_of(work, struct i2o_event, work);
+
+ if (likely(evt->i2o_dev))
+ osm_debug("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;
+ int i = 0;
+ int rc = -EAGAIN;
+
+ for (i = 1; i <= I2O_LCT_GET_TRIES; i++) {
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] =
+ cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_LCT_NOTIFY << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->body[0] = cpu_to_le32(0xffffffff);
+ msg->body[1] = cpu_to_le32(0x00000000);
+ msg->body[2] = cpu_to_le32(0xd0000000 | c->dlct.len);
+ msg->body[3] = cpu_to_le32(c->dlct.phys);
+
+ rc = i2o_msg_post_wait(c, msg, I2O_TIMEOUT_LCT_GET);
+ if (rc < 0)
+ break;
+
+ rc = i2o_device_parse_lct(c);
+ if (rc != -EAGAIN)
+ break;
+ }
+
+ return rc;
+}
+
+/* Exec OSM driver struct */
+struct i2o_driver i2o_exec_driver = {
+ .name = OSM_NAME,
+ .reply = i2o_exec_reply,
+ .event = i2o_exec_event,
+ .classes = i2o_exec_class_id,
+ .driver = {
+ .probe = i2o_exec_probe,
+ .remove = i2o_exec_remove,
+ },
+};
+
+/**
+ * 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 i2o_exec_exit(void)
+{
+ i2o_driver_unregister(&i2o_exec_driver);
+};
+
+EXPORT_SYMBOL(i2o_msg_post_wait_mem);
+EXPORT_SYMBOL(i2o_exec_lct_get);
--- /dev/null
+/*
+ * I2O kernel space accessible structures/APIs
+ *
+ * (c) Copyright 1999, 2000 Red Hat Software
+ *
+ * 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 header file defined the I2O APIs/structures for use by
+ * the I2O kernel modules.
+ *
+ */
+
+#ifndef _I2O_H
+#define _I2O_H
+
+#include <linux/i2o-dev.h>
+
+/* How many different OSM's are we allowing */
+#define I2O_MAX_DRIVERS 8
+
+#include <linux/pci.h>
+#include <linux/bug.h>
+#include <linux/dma-mapping.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h> /* work_struct */
+#include <linux/mempool.h>
+#include <linux/mutex.h>
+#include <linux/scatterlist.h>
+#include <linux/semaphore.h> /* Needed for MUTEX init macros */
+
+#include <asm/io.h>
+
+/* message queue empty */
+#define I2O_QUEUE_EMPTY 0xffffffff
+
+/*
+ * Cache strategies
+ */
+
+/* The NULL strategy leaves everything up to the controller. This tends to be a
+ * pessimal but functional choice.
+ */
+#define CACHE_NULL 0
+/* Prefetch data when reading. We continually attempt to load the next 32 sectors
+ * into the controller cache.
+ */
+#define CACHE_PREFETCH 1
+/* Prefetch data when reading. We sometimes attempt to load the next 32 sectors
+ * into the controller cache. When an I/O is less <= 8K we assume its probably
+ * not sequential and don't prefetch (default)
+ */
+#define CACHE_SMARTFETCH 2
+/* Data is written to the cache and then out on to the disk. The I/O must be
+ * physically on the medium before the write is acknowledged (default without
+ * NVRAM)
+ */
+#define CACHE_WRITETHROUGH 17
+/* Data is written to the cache and then out on to the disk. The controller
+ * is permitted to write back the cache any way it wants. (default if battery
+ * backed NVRAM is present). It can be useful to set this for swap regardless of
+ * battery state.
+ */
+#define CACHE_WRITEBACK 18
+/* Optimise for under powered controllers, especially on RAID1 and RAID0. We
+ * write large I/O's directly to disk bypassing the cache to avoid the extra
+ * memory copy hits. Small writes are writeback cached
+ */
+#define CACHE_SMARTBACK 19
+/* Optimise for under powered controllers, especially on RAID1 and RAID0. We
+ * write large I/O's directly to disk bypassing the cache to avoid the extra
+ * memory copy hits. Small writes are writethrough cached. Suitable for devices
+ * lacking battery backup
+ */
+#define CACHE_SMARTTHROUGH 20
+
+/*
+ * Ioctl structures
+ */
+
+#define BLKI2OGRSTRAT _IOR('2', 1, int)
+#define BLKI2OGWSTRAT _IOR('2', 2, int)
+#define BLKI2OSRSTRAT _IOW('2', 3, int)
+#define BLKI2OSWSTRAT _IOW('2', 4, int)
+
+/*
+ * I2O Function codes
+ */
+
+/*
+ * Executive Class
+ */
+#define I2O_CMD_ADAPTER_ASSIGN 0xB3
+#define I2O_CMD_ADAPTER_READ 0xB2
+#define I2O_CMD_ADAPTER_RELEASE 0xB5
+#define I2O_CMD_BIOS_INFO_SET 0xA5
+#define I2O_CMD_BOOT_DEVICE_SET 0xA7
+#define I2O_CMD_CONFIG_VALIDATE 0xBB
+#define I2O_CMD_CONN_SETUP 0xCA
+#define I2O_CMD_DDM_DESTROY 0xB1
+#define I2O_CMD_DDM_ENABLE 0xD5
+#define I2O_CMD_DDM_QUIESCE 0xC7
+#define I2O_CMD_DDM_RESET 0xD9
+#define I2O_CMD_DDM_SUSPEND 0xAF
+#define I2O_CMD_DEVICE_ASSIGN 0xB7
+#define I2O_CMD_DEVICE_RELEASE 0xB9
+#define I2O_CMD_HRT_GET 0xA8
+#define I2O_CMD_ADAPTER_CLEAR 0xBE
+#define I2O_CMD_ADAPTER_CONNECT 0xC9
+#define I2O_CMD_ADAPTER_RESET 0xBD
+#define I2O_CMD_LCT_NOTIFY 0xA2
+#define I2O_CMD_OUTBOUND_INIT 0xA1
+#define I2O_CMD_PATH_ENABLE 0xD3
+#define I2O_CMD_PATH_QUIESCE 0xC5
+#define I2O_CMD_PATH_RESET 0xD7
+#define I2O_CMD_STATIC_MF_CREATE 0xDD
+#define I2O_CMD_STATIC_MF_RELEASE 0xDF
+#define I2O_CMD_STATUS_GET 0xA0
+#define I2O_CMD_SW_DOWNLOAD 0xA9
+#define I2O_CMD_SW_UPLOAD 0xAB
+#define I2O_CMD_SW_REMOVE 0xAD
+#define I2O_CMD_SYS_ENABLE 0xD1
+#define I2O_CMD_SYS_MODIFY 0xC1
+#define I2O_CMD_SYS_QUIESCE 0xC3
+#define I2O_CMD_SYS_TAB_SET 0xA3
+
+/*
+ * Utility Class
+ */
+#define I2O_CMD_UTIL_NOP 0x00
+#define I2O_CMD_UTIL_ABORT 0x01
+#define I2O_CMD_UTIL_CLAIM 0x09
+#define I2O_CMD_UTIL_RELEASE 0x0B
+#define I2O_CMD_UTIL_PARAMS_GET 0x06
+#define I2O_CMD_UTIL_PARAMS_SET 0x05
+#define I2O_CMD_UTIL_EVT_REGISTER 0x13
+#define I2O_CMD_UTIL_EVT_ACK 0x14
+#define I2O_CMD_UTIL_CONFIG_DIALOG 0x10
+#define I2O_CMD_UTIL_DEVICE_RESERVE 0x0D
+#define I2O_CMD_UTIL_DEVICE_RELEASE 0x0F
+#define I2O_CMD_UTIL_LOCK 0x17
+#define I2O_CMD_UTIL_LOCK_RELEASE 0x19
+#define I2O_CMD_UTIL_REPLY_FAULT_NOTIFY 0x15
+
+/*
+ * SCSI Host Bus Adapter Class
+ */
+#define I2O_CMD_SCSI_EXEC 0x81
+#define I2O_CMD_SCSI_ABORT 0x83
+#define I2O_CMD_SCSI_BUSRESET 0x27
+
+/*
+ * Bus Adapter Class
+ */
+#define I2O_CMD_BUS_ADAPTER_RESET 0x85
+#define I2O_CMD_BUS_RESET 0x87
+#define I2O_CMD_BUS_SCAN 0x89
+#define I2O_CMD_BUS_QUIESCE 0x8b
+
+/*
+ * Random Block Storage Class
+ */
+#define I2O_CMD_BLOCK_READ 0x30
+#define I2O_CMD_BLOCK_WRITE 0x31
+#define I2O_CMD_BLOCK_CFLUSH 0x37
+#define I2O_CMD_BLOCK_MLOCK 0x49
+#define I2O_CMD_BLOCK_MUNLOCK 0x4B
+#define I2O_CMD_BLOCK_MMOUNT 0x41
+#define I2O_CMD_BLOCK_MEJECT 0x43
+#define I2O_CMD_BLOCK_POWER 0x70
+
+#define I2O_CMD_PRIVATE 0xFF
+
+/* Command status values */
+
+#define I2O_CMD_IN_PROGRESS 0x01
+#define I2O_CMD_REJECTED 0x02
+#define I2O_CMD_FAILED 0x03
+#define I2O_CMD_COMPLETED 0x04
+
+/* I2O API function return values */
+
+#define I2O_RTN_NO_ERROR 0
+#define I2O_RTN_NOT_INIT 1
+#define I2O_RTN_FREE_Q_EMPTY 2
+#define I2O_RTN_TCB_ERROR 3
+#define I2O_RTN_TRANSACTION_ERROR 4
+#define I2O_RTN_ADAPTER_ALREADY_INIT 5
+#define I2O_RTN_MALLOC_ERROR 6
+#define I2O_RTN_ADPTR_NOT_REGISTERED 7
+#define I2O_RTN_MSG_REPLY_TIMEOUT 8
+#define I2O_RTN_NO_STATUS 9
+#define I2O_RTN_NO_FIRM_VER 10
+#define I2O_RTN_NO_LINK_SPEED 11
+
+/* Reply message status defines for all messages */
+
+#define I2O_REPLY_STATUS_SUCCESS 0x00
+#define I2O_REPLY_STATUS_ABORT_DIRTY 0x01
+#define I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER 0x02
+#define I2O_REPLY_STATUS_ABORT_PARTIAL_TRANSFER 0x03
+#define I2O_REPLY_STATUS_ERROR_DIRTY 0x04
+#define I2O_REPLY_STATUS_ERROR_NO_DATA_TRANSFER 0x05
+#define I2O_REPLY_STATUS_ERROR_PARTIAL_TRANSFER 0x06
+#define I2O_REPLY_STATUS_PROCESS_ABORT_DIRTY 0x08
+#define I2O_REPLY_STATUS_PROCESS_ABORT_NO_DATA_TRANSFER 0x09
+#define I2O_REPLY_STATUS_PROCESS_ABORT_PARTIAL_TRANSFER 0x0A
+#define I2O_REPLY_STATUS_TRANSACTION_ERROR 0x0B
+#define I2O_REPLY_STATUS_PROGRESS_REPORT 0x80
+
+/* Status codes and Error Information for Parameter functions */
+
+#define I2O_PARAMS_STATUS_SUCCESS 0x00
+#define I2O_PARAMS_STATUS_BAD_KEY_ABORT 0x01
+#define I2O_PARAMS_STATUS_BAD_KEY_CONTINUE 0x02
+#define I2O_PARAMS_STATUS_BUFFER_FULL 0x03
+#define I2O_PARAMS_STATUS_BUFFER_TOO_SMALL 0x04
+#define I2O_PARAMS_STATUS_FIELD_UNREADABLE 0x05
+#define I2O_PARAMS_STATUS_FIELD_UNWRITEABLE 0x06
+#define I2O_PARAMS_STATUS_INSUFFICIENT_FIELDS 0x07
+#define I2O_PARAMS_STATUS_INVALID_GROUP_ID 0x08
+#define I2O_PARAMS_STATUS_INVALID_OPERATION 0x09
+#define I2O_PARAMS_STATUS_NO_KEY_FIELD 0x0A
+#define I2O_PARAMS_STATUS_NO_SUCH_FIELD 0x0B
+#define I2O_PARAMS_STATUS_NON_DYNAMIC_GROUP 0x0C
+#define I2O_PARAMS_STATUS_OPERATION_ERROR 0x0D
+#define I2O_PARAMS_STATUS_SCALAR_ERROR 0x0E
+#define I2O_PARAMS_STATUS_TABLE_ERROR 0x0F
+#define I2O_PARAMS_STATUS_WRONG_GROUP_TYPE 0x10
+
+/* DetailedStatusCode defines for Executive, DDM, Util and Transaction error
+ * messages: Table 3-2 Detailed Status Codes.*/
+
+#define I2O_DSC_SUCCESS 0x0000
+#define I2O_DSC_BAD_KEY 0x0002
+#define I2O_DSC_TCL_ERROR 0x0003
+#define I2O_DSC_REPLY_BUFFER_FULL 0x0004
+#define I2O_DSC_NO_SUCH_PAGE 0x0005
+#define I2O_DSC_INSUFFICIENT_RESOURCE_SOFT 0x0006
+#define I2O_DSC_INSUFFICIENT_RESOURCE_HARD 0x0007
+#define I2O_DSC_CHAIN_BUFFER_TOO_LARGE 0x0009
+#define I2O_DSC_UNSUPPORTED_FUNCTION 0x000A
+#define I2O_DSC_DEVICE_LOCKED 0x000B
+#define I2O_DSC_DEVICE_RESET 0x000C
+#define I2O_DSC_INAPPROPRIATE_FUNCTION 0x000D
+#define I2O_DSC_INVALID_INITIATOR_ADDRESS 0x000E
+#define I2O_DSC_INVALID_MESSAGE_FLAGS 0x000F
+#define I2O_DSC_INVALID_OFFSET 0x0010
+#define I2O_DSC_INVALID_PARAMETER 0x0011
+#define I2O_DSC_INVALID_REQUEST 0x0012
+#define I2O_DSC_INVALID_TARGET_ADDRESS 0x0013
+#define I2O_DSC_MESSAGE_TOO_LARGE 0x0014
+#define I2O_DSC_MESSAGE_TOO_SMALL 0x0015
+#define I2O_DSC_MISSING_PARAMETER 0x0016
+#define I2O_DSC_TIMEOUT 0x0017
+#define I2O_DSC_UNKNOWN_ERROR 0x0018
+#define I2O_DSC_UNKNOWN_FUNCTION 0x0019
+#define I2O_DSC_UNSUPPORTED_VERSION 0x001A
+#define I2O_DSC_DEVICE_BUSY 0x001B
+#define I2O_DSC_DEVICE_NOT_AVAILABLE 0x001C
+
+/* DetailedStatusCode defines for Block Storage Operation: Table 6-7 Detailed
+ Status Codes.*/
+
+#define I2O_BSA_DSC_SUCCESS 0x0000
+#define I2O_BSA_DSC_MEDIA_ERROR 0x0001
+#define I2O_BSA_DSC_ACCESS_ERROR 0x0002
+#define I2O_BSA_DSC_DEVICE_FAILURE 0x0003
+#define I2O_BSA_DSC_DEVICE_NOT_READY 0x0004
+#define I2O_BSA_DSC_MEDIA_NOT_PRESENT 0x0005
+#define I2O_BSA_DSC_MEDIA_LOCKED 0x0006
+#define I2O_BSA_DSC_MEDIA_FAILURE 0x0007
+#define I2O_BSA_DSC_PROTOCOL_FAILURE 0x0008
+#define I2O_BSA_DSC_BUS_FAILURE 0x0009
+#define I2O_BSA_DSC_ACCESS_VIOLATION 0x000A
+#define I2O_BSA_DSC_WRITE_PROTECTED 0x000B
+#define I2O_BSA_DSC_DEVICE_RESET 0x000C
+#define I2O_BSA_DSC_VOLUME_CHANGED 0x000D
+#define I2O_BSA_DSC_TIMEOUT 0x000E
+
+/* FailureStatusCodes, Table 3-3 Message Failure Codes */
+
+#define I2O_FSC_TRANSPORT_SERVICE_SUSPENDED 0x81
+#define I2O_FSC_TRANSPORT_SERVICE_TERMINATED 0x82
+#define I2O_FSC_TRANSPORT_CONGESTION 0x83
+#define I2O_FSC_TRANSPORT_FAILURE 0x84
+#define I2O_FSC_TRANSPORT_STATE_ERROR 0x85
+#define I2O_FSC_TRANSPORT_TIME_OUT 0x86
+#define I2O_FSC_TRANSPORT_ROUTING_FAILURE 0x87
+#define I2O_FSC_TRANSPORT_INVALID_VERSION 0x88
+#define I2O_FSC_TRANSPORT_INVALID_OFFSET 0x89
+#define I2O_FSC_TRANSPORT_INVALID_MSG_FLAGS 0x8A
+#define I2O_FSC_TRANSPORT_FRAME_TOO_SMALL 0x8B
+#define I2O_FSC_TRANSPORT_FRAME_TOO_LARGE 0x8C
+#define I2O_FSC_TRANSPORT_INVALID_TARGET_ID 0x8D
+#define I2O_FSC_TRANSPORT_INVALID_INITIATOR_ID 0x8E
+#define I2O_FSC_TRANSPORT_INVALID_INITIATOR_CONTEXT 0x8F
+#define I2O_FSC_TRANSPORT_UNKNOWN_FAILURE 0xFF
+
+/* Device Claim Types */
+#define I2O_CLAIM_PRIMARY 0x01000000
+#define I2O_CLAIM_MANAGEMENT 0x02000000
+#define I2O_CLAIM_AUTHORIZED 0x03000000
+#define I2O_CLAIM_SECONDARY 0x04000000
+
+/* Message header defines for VersionOffset */
+#define I2OVER15 0x0001
+#define I2OVER20 0x0002
+
+/* Default is 1.5 */
+#define I2OVERSION I2OVER15
+
+#define SGL_OFFSET_0 I2OVERSION
+#define SGL_OFFSET_4 (0x0040 | I2OVERSION)
+#define SGL_OFFSET_5 (0x0050 | I2OVERSION)
+#define SGL_OFFSET_6 (0x0060 | I2OVERSION)
+#define SGL_OFFSET_7 (0x0070 | I2OVERSION)
+#define SGL_OFFSET_8 (0x0080 | I2OVERSION)
+#define SGL_OFFSET_9 (0x0090 | I2OVERSION)
+#define SGL_OFFSET_10 (0x00A0 | I2OVERSION)
+#define SGL_OFFSET_11 (0x00B0 | I2OVERSION)
+#define SGL_OFFSET_12 (0x00C0 | I2OVERSION)
+#define SGL_OFFSET(x) (((x)<<4) | I2OVERSION)
+
+/* Transaction Reply Lists (TRL) Control Word structure */
+#define TRL_SINGLE_FIXED_LENGTH 0x00
+#define TRL_SINGLE_VARIABLE_LENGTH 0x40
+#define TRL_MULTIPLE_FIXED_LENGTH 0x80
+
+ /* msg header defines for MsgFlags */
+#define MSG_STATIC 0x0100
+#define MSG_64BIT_CNTXT 0x0200
+#define MSG_MULTI_TRANS 0x1000
+#define MSG_FAIL 0x2000
+#define MSG_FINAL 0x4000
+#define MSG_REPLY 0x8000
+
+ /* minimum size msg */
+#define THREE_WORD_MSG_SIZE 0x00030000
+#define FOUR_WORD_MSG_SIZE 0x00040000
+#define FIVE_WORD_MSG_SIZE 0x00050000
+#define SIX_WORD_MSG_SIZE 0x00060000
+#define SEVEN_WORD_MSG_SIZE 0x00070000
+#define EIGHT_WORD_MSG_SIZE 0x00080000
+#define NINE_WORD_MSG_SIZE 0x00090000
+#define TEN_WORD_MSG_SIZE 0x000A0000
+#define ELEVEN_WORD_MSG_SIZE 0x000B0000
+#define I2O_MESSAGE_SIZE(x) ((x)<<16)
+
+/* special TID assignments */
+#define ADAPTER_TID 0
+#define HOST_TID 1
+
+/* outbound queue defines */
+#define I2O_MAX_OUTBOUND_MSG_FRAMES 128
+#define I2O_OUTBOUND_MSG_FRAME_SIZE 128 /* in 32-bit words */
+
+/* inbound queue definitions */
+#define I2O_MSG_INPOOL_MIN 32
+#define I2O_INBOUND_MSG_FRAME_SIZE 128 /* in 32-bit words */
+
+#define I2O_POST_WAIT_OK 0
+#define I2O_POST_WAIT_TIMEOUT -ETIMEDOUT
+
+#define I2O_CONTEXT_LIST_MIN_LENGTH 15
+#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 360
+#define I2O_TIMEOUT_SCSI_SCB_ABORT 240
+
+/* retries */
+#define I2O_HRT_GET_TRIES 3
+#define I2O_LCT_GET_TRIES 3
+
+/* defines for max_sectors and max_phys_segments */
+#define I2O_MAX_SECTORS 1024
+#define I2O_MAX_SECTORS_LIMITED 128
+#define I2O_MAX_PHYS_SEGMENTS BLK_MAX_SEGMENTS
+
+/*
+ * Message structures
+ */
+struct i2o_message {
+ 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 */
+ } s;
+ u32 head[4];
+ } u;
+ /* List follows */
+ u32 body[0];
+};
+
+/* MFA and I2O message used by mempool */
+struct i2o_msg_mfa {
+ u32 mfa; /* MFA returned by the controller */
+ struct i2o_message msg; /* I2O message */
+};
+
+/*
+ * Each I2O device entity has one of these. There is one per device.
+ */
+struct i2o_device {
+ i2o_lct_entry lct_data; /* Device LCT information */
+
+ struct i2o_controller *iop; /* Controlling IOP */
+ struct list_head list; /* node in IOP devices list */
+
+ struct device device;
+
+ struct mutex lock; /* device lock */
+};
+
+/*
+ * 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 */
+
+ /* Message reply handler */
+ int (*reply) (struct i2o_controller *, u32, struct i2o_message *);
+
+ /* Event handler */
+ work_func_t event;
+
+ struct workqueue_struct *event_queue; /* Event queue */
+
+ struct device_driver driver;
+
+ /* notification of changes */
+ void (*notify_controller_add) (struct i2o_controller *);
+ void (*notify_controller_remove) (struct i2o_controller *);
+ void (*notify_device_add) (struct i2o_device *);
+ void (*notify_device_remove) (struct i2o_device *);
+
+ struct semaphore lock;
+};
+
+/*
+ * Contains DMA mapped address information
+ */
+struct i2o_dma {
+ void *virt;
+ dma_addr_t phys;
+ size_t len;
+};
+
+/*
+ * Contains slab cache and mempool information
+ */
+struct i2o_pool {
+ char *name;
+ struct kmem_cache *slab;
+ mempool_t *mempool;
+};
+
+/*
+ * Contains IO mapped address information
+ */
+struct i2o_io {
+ void __iomem *virt;
+ unsigned long phys;
+ unsigned long len;
+};
+
+/*
+ * Context queue entry, used for 32-bit context on 64-bit systems
+ */
+struct i2o_context_list_element {
+ struct list_head list;
+ u32 context;
+ void *ptr;
+ unsigned long timestamp;
+};
+
+/*
+ * Each I2O controller has one of these objects
+ */
+struct i2o_controller {
+ char name[16];
+ int unit;
+ int type;
+
+ struct pci_dev *pdev; /* PCI device */
+
+ unsigned int promise:1; /* Promise controller */
+ unsigned int adaptec:1; /* DPT / Adaptec controller */
+ unsigned int raptor:1; /* split bar */
+ unsigned int no_quiesce:1; /* dont quiesce before reset */
+ unsigned int short_req:1; /* use small block sizes */
+ unsigned int limit_sectors:1; /* limit number of sectors / request */
+ unsigned int pae_support:1; /* controller has 64-bit SGL support */
+
+ struct list_head devices; /* list of I2O devices */
+ struct list_head list; /* Controller list */
+
+ void __iomem *in_port; /* Inbout port address */
+ void __iomem *out_port; /* Outbound port address */
+ void __iomem *irq_status; /* Interrupt status register address */
+ void __iomem *irq_mask; /* Interrupt mask register address */
+
+ struct i2o_dma status; /* IOP status block */
+
+ struct i2o_dma hrt; /* HW Resource Table */
+ i2o_lct *lct; /* Logical Config Table */
+ struct i2o_dma dlct; /* Temp LCT */
+ struct mutex lct_lock; /* Lock for LCT updates */
+ struct i2o_dma status_block; /* IOP status block */
+
+ struct i2o_io base; /* controller messaging unit */
+ struct i2o_io in_queue; /* inbound message queue Host->IOP */
+ struct i2o_dma out_queue; /* outbound message queue IOP->Host */
+
+ struct i2o_pool in_msg; /* mempool for inbound messages */
+
+ unsigned int battery:1; /* Has a battery backup */
+ unsigned int io_alloc:1; /* An I/O resource was allocated */
+ unsigned int mem_alloc:1; /* A memory resource was allocated */
+
+ struct resource io_resource; /* I/O resource allocated to the IOP */
+ struct resource mem_resource; /* Mem resource allocated to the IOP */
+
+ struct device device;
+ struct i2o_device *exec; /* Executive */
+#if BITS_PER_LONG == 64
+ spinlock_t context_list_lock; /* lock for context_list */
+ 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 */
+ void *driver_data[I2O_MAX_DRIVERS]; /* storage for drivers */
+};
+
+/*
+ * I2O System table entry
+ *
+ * The system table contains information about all the IOPs in the
+ * system. It is sent to all IOPs so that they can create peer2peer
+ * connections between them.
+ */
+struct i2o_sys_tbl_entry {
+ u16 org_id;
+ u16 reserved1;
+ u32 iop_id:12;
+ u32 reserved2:20;
+ u16 seg_num:12;
+ u16 i2o_version:4;
+ u8 iop_state;
+ u8 msg_type;
+ u16 frame_size;
+ u16 reserved3;
+ u32 last_changed;
+ u32 iop_capabilities;
+ u32 inbound_low;
+ u32 inbound_high;
+};
+
+struct i2o_sys_tbl {
+ u8 num_entries;
+ u8 version;
+ u16 reserved1;
+ u32 change_ind;
+ u32 reserved2;
+ u32 reserved3;
+ struct i2o_sys_tbl_entry iops[0];
+};
+
+extern struct list_head i2o_controllers;
+
+/* Message functions */
+extern struct i2o_message *i2o_msg_get_wait(struct i2o_controller *, int);
+extern int i2o_msg_post_wait_mem(struct i2o_controller *, struct i2o_message *,
+ unsigned long, struct i2o_dma *);
+
+/* IOP functions */
+extern int i2o_status_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 *);
+extern u32 i2o_cntxt_list_get_ptr(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);
+};
+
+static inline u32 i2o_dma_low(dma_addr_t dma_addr)
+{
+ return (u32) (u64) dma_addr;
+};
+
+static inline u32 i2o_dma_high(dma_addr_t dma_addr)
+{
+ return (u32) ((u64) dma_addr >> 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_cntxt_list_get_ptr(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;
+};
+
+static inline u32 i2o_dma_low(dma_addr_t dma_addr)
+{
+ return (u32) dma_addr;
+};
+
+static inline u32 i2o_dma_high(dma_addr_t dma_addr)
+{
+ return 0;
+};
+#endif
+
+extern u16 i2o_sg_tablesize(struct i2o_controller *c, u16 body_size);
+extern dma_addr_t i2o_dma_map_single(struct i2o_controller *c, void *ptr,
+ size_t size,
+ enum dma_data_direction direction,
+ u32 ** sg_ptr);
+extern int i2o_dma_map_sg(struct i2o_controller *c,
+ struct scatterlist *sg, int sg_count,
+ enum dma_data_direction direction,
+ u32 ** sg_ptr);
+extern int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr, size_t len);
+extern void i2o_dma_free(struct device *dev, struct i2o_dma *addr);
+extern int i2o_dma_realloc(struct device *dev, struct i2o_dma *addr,
+ size_t len);
+extern int i2o_pool_alloc(struct i2o_pool *pool, const char *name,
+ size_t size, int min_nr);
+extern void i2o_pool_free(struct i2o_pool *pool);
+/* I2O driver (OSM) functions */
+extern int i2o_driver_register(struct i2o_driver *);
+extern void i2o_driver_unregister(struct i2o_driver *);
+
+/**
+ * i2o_driver_notify_controller_add - Send notification of added controller
+ * @drv: I2O driver
+ * @c: I2O controller
+ *
+ * Send notification of added controller to a single registered driver.
+ */
+static inline void i2o_driver_notify_controller_add(struct i2o_driver *drv,
+ struct i2o_controller *c)
+{
+ if (drv->notify_controller_add)
+ drv->notify_controller_add(c);
+};
+
+/**
+ * i2o_driver_notify_controller_remove - Send notification of removed controller
+ * @drv: I2O driver
+ * @c: I2O controller
+ *
+ * Send notification of removed controller to a single registered driver.
+ */
+static inline void i2o_driver_notify_controller_remove(struct i2o_driver *drv,
+ struct i2o_controller *c)
+{
+ if (drv->notify_controller_remove)
+ drv->notify_controller_remove(c);
+};
+
+/**
+ * i2o_driver_notify_device_add - Send notification of added device
+ * @drv: I2O driver
+ * @i2o_dev: the added i2o_device
+ *
+ * Send notification of added device to a single registered driver.
+ */
+static inline void i2o_driver_notify_device_add(struct i2o_driver *drv,
+ struct i2o_device *i2o_dev)
+{
+ if (drv->notify_device_add)
+ drv->notify_device_add(i2o_dev);
+};
+
+/**
+ * i2o_driver_notify_device_remove - Send notification of removed device
+ * @drv: I2O driver
+ * @i2o_dev: the added i2o_device
+ *
+ * Send notification of removed device to a single registered driver.
+ */
+static inline void i2o_driver_notify_device_remove(struct i2o_driver *drv,
+ struct i2o_device *i2o_dev)
+{
+ if (drv->notify_device_remove)
+ drv->notify_device_remove(i2o_dev);
+};
+
+extern void i2o_driver_notify_controller_add_all(struct i2o_controller *);
+extern void i2o_driver_notify_controller_remove_all(struct i2o_controller *);
+extern void i2o_driver_notify_device_add_all(struct i2o_device *);
+extern void i2o_driver_notify_device_remove_all(struct i2o_device *);
+
+/* 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 *);
+
+/* device / driver / kobject conversion 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)
+#define to_i2o_controller(dev) container_of(dev, struct i2o_controller, device)
+
+/**
+ * i2o_out_to_virt - Turn an I2O message to a virtual address
+ * @c: controller
+ * @m: message engine value
+ *
+ * Turn a receive message from an I2O controller bus address into
+ * a Linux virtual address. The shared page frame is a linear block
+ * so we simply have to shift the offset. This function does not
+ * work for sender side messages as they are ioremap objects
+ * provided by the I2O controller.
+ */
+static inline struct i2o_message *i2o_msg_out_to_virt(struct i2o_controller *c,
+ u32 m)
+{
+ BUG_ON(m < c->out_queue.phys
+ || m >= c->out_queue.phys + c->out_queue.len);
+
+ return c->out_queue.virt + (m - c->out_queue.phys);
+};
+
+/**
+ * i2o_msg_in_to_virt - Turn an I2O message to a virtual address
+ * @c: controller
+ * @m: message engine value
+ *
+ * Turn a send message from an I2O controller bus address into
+ * a Linux virtual address. The shared page frame is a linear block
+ * so we simply have to shift the offset. This function does not
+ * work for receive side messages as they are kmalloc objects
+ * in a different pool.
+ */
+static inline struct i2o_message __iomem *i2o_msg_in_to_virt(struct
+ i2o_controller *c,
+ u32 m)
+{
+ return c->in_queue.virt + m;
+};
+
+/**
+ * i2o_msg_get - obtain an I2O message from the IOP
+ * @c: I2O controller
+ *
+ * This function tries to get a message frame. If no message frame is
+ * available do not wait until one is available (see also i2o_msg_get_wait).
+ * The returned pointer to the message frame is not in I/O memory, it is
+ * allocated from a mempool. But because a MFA is allocated from the
+ * controller too it is guaranteed that i2o_msg_post() will never fail.
+ *
+ * On a success a pointer to the message frame is returned. If the message
+ * queue is empty -EBUSY is returned and if no memory is available -ENOMEM
+ * is returned.
+ */
+static inline struct i2o_message *i2o_msg_get(struct i2o_controller *c)
+{
+ struct i2o_msg_mfa *mmsg = mempool_alloc(c->in_msg.mempool, GFP_ATOMIC);
+ if (!mmsg)
+ return ERR_PTR(-ENOMEM);
+
+ mmsg->mfa = readl(c->in_port);
+ if (unlikely(mmsg->mfa >= c->in_queue.len)) {
+ u32 mfa = mmsg->mfa;
+
+ mempool_free(mmsg, c->in_msg.mempool);
+
+ if (mfa == I2O_QUEUE_EMPTY)
+ return ERR_PTR(-EBUSY);
+ return ERR_PTR(-EFAULT);
+ }
+
+ return &mmsg->msg;
+};
+
+/**
+ * i2o_msg_post - Post I2O message to I2O controller
+ * @c: I2O controller to which the message should be send
+ * @msg: message returned by i2o_msg_get()
+ *
+ * Post the message to the I2O controller and return immediately.
+ */
+static inline void i2o_msg_post(struct i2o_controller *c,
+ struct i2o_message *msg)
+{
+ struct i2o_msg_mfa *mmsg;
+
+ mmsg = container_of(msg, struct i2o_msg_mfa, msg);
+ memcpy_toio(i2o_msg_in_to_virt(c, mmsg->mfa), msg,
+ (le32_to_cpu(msg->u.head[0]) >> 16) << 2);
+ writel(mmsg->mfa, c->in_port);
+ mempool_free(mmsg, c->in_msg.mempool);
+};
+
+/**
+ * i2o_msg_post_wait - Post and wait a message and wait until return
+ * @c: controller
+ * @msg: 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,
+ struct i2o_message *msg,
+ unsigned long timeout)
+{
+ return i2o_msg_post_wait_mem(c, msg, timeout, NULL);
+};
+
+/**
+ * i2o_msg_nop_mfa - Returns a fetched MFA back to the controller
+ * @c: I2O controller from which the MFA was fetched
+ * @mfa: MFA which should be returned
+ *
+ * This function must be used for preserved messages, because i2o_msg_nop()
+ * also returns the allocated memory back to the msg_pool mempool.
+ */
+static inline void i2o_msg_nop_mfa(struct i2o_controller *c, u32 mfa)
+{
+ struct i2o_message __iomem *msg;
+ u32 nop[3] = {
+ THREE_WORD_MSG_SIZE | SGL_OFFSET_0,
+ I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | ADAPTER_TID,
+ 0x00000000
+ };
+
+ msg = i2o_msg_in_to_virt(c, mfa);
+ memcpy_toio(msg, nop, sizeof(nop));
+ writel(mfa, c->in_port);
+};
+
+/**
+ * i2o_msg_nop - Returns a message which is not used
+ * @c: I2O controller from which the message was created
+ * @msg: 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 MFA is lost as well
+ * as the allocated memory from the mempool.
+ */
+static inline void i2o_msg_nop(struct i2o_controller *c,
+ struct i2o_message *msg)
+{
+ struct i2o_msg_mfa *mmsg;
+ mmsg = container_of(msg, struct i2o_msg_mfa, msg);
+
+ i2o_msg_nop_mfa(c, mmsg->mfa);
+ mempool_free(mmsg, c->in_msg.mempool);
+};
+
+/**
+ * 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.
+ */
+static inline void i2o_flush_reply(struct i2o_controller *c, u32 m)
+{
+ writel(m, c->out_port);
+};
+
+/*
+ * Endian handling wrapped into the macro - keeps the core code
+ * cleaner.
+ */
+
+#define i2o_raw_writel(val, mem) __raw_writel(cpu_to_le32(val), mem)
+
+extern int i2o_parm_field_get(struct i2o_device *, int, int, void *, int);
+extern int i2o_parm_table_get(struct i2o_device *, int, int, int, void *, int,
+ void *, int);
+
+/* debugging and troubleshooting/diagnostic helpers. */
+#define osm_printk(level, format, arg...) \
+ printk(level "%s: " format, OSM_NAME , ## arg)
+
+#ifdef DEBUG
+#define osm_debug(format, arg...) \
+ osm_printk(KERN_DEBUG, format , ## arg)
+#else
+#define osm_debug(format, arg...) \
+ do { } while (0)
+#endif
+
+#define osm_err(format, arg...) \
+ osm_printk(KERN_ERR, format , ## arg)
+#define osm_info(format, arg...) \
+ osm_printk(KERN_INFO, format , ## arg)
+#define osm_warn(format, arg...) \
+ osm_printk(KERN_WARNING, format , ## arg)
+
+/* 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);
+
+#endif /* _I2O_H */
--- /dev/null
+/*
+ * 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/slab.h>
+#include "i2o.h"
+#include <linux/mutex.h>
+
+#include <linux/mempool.h>
+
+#include <linux/genhd.h>
+#include <linux/blkdev.h>
+#include <linux/hdreg.h>
+
+#include <scsi/scsi.h>
+
+#include "i2o_block.h"
+
+#define OSM_NAME "block-osm"
+#define OSM_VERSION "1.325"
+#define OSM_DESCRIPTION "I2O Block Device OSM"
+
+static DEFINE_MUTEX(i2o_block_mutex);
+static struct i2o_driver i2o_block_driver;
+
+/* global Block OSM request mempool */
+static struct i2o_block_mempool i2o_blk_req_pool;
+
+/* Block OSM class handling definition */
+static struct i2o_class_id i2o_block_class_id[] = {
+ {I2O_CLASS_RANDOM_BLOCK_STORAGE},
+ {I2O_CLASS_END}
+};
+
+/**
+ * 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_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);
+
+ osm_info("device removed (TID: %03x): %s\n", i2o_dev->lct_data.tid,
+ 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;
+
+ msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_BLOCK_CFLUSH << 24 | HOST_TID << 12 | dev->
+ lct_data.tid);
+ msg->body[0] = cpu_to_le32(60 << 16);
+ osm_debug("Flushing...\n");
+
+ return i2o_msg_post_wait(dev->iop, msg, 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;
+
+ msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_BLOCK_MMOUNT << 24 | HOST_TID << 12 | dev->
+ lct_data.tid);
+ msg->body[0] = cpu_to_le32(-1);
+ msg->body[1] = cpu_to_le32(0x00000000);
+ osm_debug("Mounting...\n");
+
+ return i2o_msg_post_wait(dev->iop, msg, 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;
+
+ msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_BLOCK_MLOCK << 24 | HOST_TID << 12 | dev->
+ lct_data.tid);
+ msg->body[0] = cpu_to_le32(-1);
+ osm_debug("Locking...\n");
+
+ return i2o_msg_post_wait(dev->iop, msg, 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;
+
+ msg = i2o_msg_get_wait(dev->iop, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_BLOCK_MUNLOCK << 24 | HOST_TID << 12 | dev->
+ lct_data.tid);
+ msg->body[0] = cpu_to_le32(media_id);
+ osm_debug("Unlocking...\n");
+
+ return i2o_msg_post_wait(dev->iop, msg, 2);
+};
+
+/**
+ * i2o_block_device_power - Power management for device dev
+ * @dev: I2O device which should receive the power management request
+ * @op: Operation to 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;
+ int rc;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_BLOCK_POWER << 24 | HOST_TID << 12 | i2o_dev->
+ lct_data.tid);
+ msg->body[0] = cpu_to_le32(op << 24);
+ osm_debug("Power...\n");
+
+ rc = i2o_msg_post_wait(c, msg, 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);
+ sg_init_table(ireq->sg_table, I2O_MAX_PHYS_SEGMENTS);
+
+ return ireq;
+};
+
+/**
+ * i2o_block_request_free - Frees a I2O block request
+ * @ireq: I2O block request which should be freed
+ *
+ * Frees 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
+ * @c: I2O controller to which the request belongs
+ * @ireq: I2O block request
+ * @mptr: message body pointer
+ *
+ * Builds the SG list and map it to be accessible by the controller.
+ *
+ * Returns 0 on failure or 1 on success.
+ */
+static inline int i2o_block_sglist_alloc(struct i2o_controller *c,
+ struct i2o_block_request *ireq,
+ u32 ** mptr)
+{
+ int nents;
+ enum dma_data_direction direction;
+
+ ireq->dev = &c->pdev->dev;
+ nents = blk_rq_map_sg(ireq->req->q, ireq->req, ireq->sg_table);
+
+ if (rq_data_dir(ireq->req) == READ)
+ direction = PCI_DMA_FROMDEVICE;
+ else
+ direction = PCI_DMA_TODEVICE;
+
+ ireq->sg_nents = nents;
+
+ return i2o_dma_map_sg(c, ireq->sg_table, nents, direction, mptr);
+};
+
+/**
+ * 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)
+{
+ enum dma_data_direction direction;
+
+ if (rq_data_dir(ireq->req) == READ)
+ direction = PCI_DMA_FROMDEVICE;
+ else
+ direction = PCI_DMA_TODEVICE;
+
+ dma_unmap_sg(ireq->dev, ireq->sg_table, ireq->sg_nents, 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 lose 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;
+
+ if (unlikely(!i2o_blk_dev)) {
+ osm_err("block device already removed\n");
+ return BLKPREP_KILL;
+ }
+
+ /* connect the i2o_block_request to the request */
+ if (!req->special) {
+ ireq = i2o_block_request_alloc();
+ if (IS_ERR(ireq)) {
+ osm_debug("unable to allocate i2o_block_request!\n");
+ return BLKPREP_DEFER;
+ }
+
+ ireq->i2o_blk_dev = i2o_blk_dev;
+ req->special = ireq;
+ ireq->req = req;
+ }
+ /* do not come back here */
+ req->cmd_flags |= REQ_DONTPREP;
+
+ return BLKPREP_OK;
+};
+
+/**
+ * i2o_block_delayed_request_fn - delayed request queue function
+ * @work: 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(struct work_struct *work)
+{
+ struct i2o_block_delayed_request *dreq =
+ container_of(work, struct i2o_block_delayed_request,
+ work.work);
+ 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_end_request - Post-processing of completed commands
+ * @req: request which should be completed
+ * @error: 0 for success, < 0 for error
+ * @nr_bytes: number of bytes to complete
+ *
+ * Mark the request as complete. The lock must not be held when entering.
+ *
+ */
+static void i2o_block_end_request(struct request *req, int error,
+ int nr_bytes)
+{
+ struct i2o_block_request *ireq = req->special;
+ struct i2o_block_device *dev = ireq->i2o_blk_dev;
+ struct request_queue *q = req->q;
+ unsigned long flags;
+
+ if (blk_end_request(req, error, nr_bytes))
+ if (error)
+ blk_end_request_all(req, -EIO);
+
+ spin_lock_irqsave(q->queue_lock, flags);
+
+ if (likely(dev)) {
+ 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);
+};
+
+/**
+ * i2o_block_reply - Block OSM reply handler.
+ * @c: I2O controller from which the message arrives
+ * @m: message id of reply
+ * @msg: the actual 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 request *req;
+ int error = 0;
+
+ req = i2o_cntxt_list_get(c, le32_to_cpu(msg->u.s.tcntxt));
+ if (unlikely(!req)) {
+ osm_err("NULL reply received!\n");
+ return -1;
+ }
+
+ /*
+ * Lets see what is cooking. We stuffed the
+ * request in the context.
+ */
+
+ if ((le32_to_cpu(msg->body[0]) >> 24) != 0) {
+ u32 status = le32_to_cpu(msg->body[0]);
+ /*
+ * 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
+ */
+
+ osm_err("TID %03x error status: 0x%02x, detailed status: "
+ "0x%04x\n", (le32_to_cpu(msg->u.head[1]) >> 12 & 0xfff),
+ status >> 24, status & 0xffff);
+
+ req->errors++;
+
+ error = -EIO;
+ }
+
+ i2o_block_end_request(req, error, le32_to_cpu(msg->body[1]));
+
+ return 1;
+};
+
+static void i2o_block_event(struct work_struct *work)
+{
+ struct i2o_event *evt = container_of(work, struct i2o_event, work);
+ osm_debug("event received\n");
+ kfree(evt);
+};
+
+/*
+ * 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
+ * @bdev: block device being opened
+ * @mode: file open mode
+ *
+ * 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 block_device *bdev, fmode_t mode)
+{
+ struct i2o_block_device *dev = bdev->bd_disk->private_data;
+
+ if (!dev->i2o_dev)
+ return -ENODEV;
+
+ mutex_lock(&i2o_block_mutex);
+ 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);
+
+ osm_debug("Ready.\n");
+ mutex_unlock(&i2o_block_mutex);
+
+ return 0;
+};
+
+/**
+ * i2o_block_release - Release the I2O block device
+ * @disk: gendisk device being released
+ * @mode: file open mode
+ *
+ * Unlock and unmount the media, and power down the device. Gets called if
+ * the block device is closed.
+ */
+static void i2o_block_release(struct gendisk *disk, fmode_t mode)
+{
+ struct i2o_block_device *dev = disk->private_data;
+ u8 operation;
+
+ /*
+ * This is to deal with the case of an application
+ * opening a device and then the device disappears 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;
+
+ mutex_lock(&i2o_block_mutex);
+ 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);
+ mutex_unlock(&i2o_block_mutex);
+}
+
+static int i2o_block_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+ i2o_block_biosparam(get_capacity(bdev->bd_disk),
+ &geo->cylinders, &geo->heads, &geo->sectors);
+ return 0;
+}
+
+/**
+ * i2o_block_ioctl - Issue device specific ioctl calls.
+ * @bdev: block device being opened
+ * @mode: file open mode
+ * @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 block_device *bdev, fmode_t mode,
+ unsigned int cmd, unsigned long arg)
+{
+ struct gendisk *disk = bdev->bd_disk;
+ struct i2o_block_device *dev = disk->private_data;
+ int ret = -ENOTTY;
+
+ /* Anyone capable of this syscall can do *real bad* things */
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ mutex_lock(&i2o_block_mutex);
+ switch (cmd) {
+ case BLKI2OGRSTRAT:
+ ret = put_user(dev->rcache, (int __user *)arg);
+ break;
+ case BLKI2OGWSTRAT:
+ ret = put_user(dev->wcache, (int __user *)arg);
+ break;
+ case BLKI2OSRSTRAT:
+ ret = -EINVAL;
+ if (arg < 0 || arg > CACHE_SMARTFETCH)
+ break;
+ dev->rcache = arg;
+ ret = 0;
+ break;
+ case BLKI2OSWSTRAT:
+ ret = -EINVAL;
+ if (arg != 0
+ && (arg < CACHE_WRITETHROUGH || arg > CACHE_SMARTBACK))
+ break;
+ dev->wcache = arg;
+ ret = 0;
+ break;
+ }
+ mutex_unlock(&i2o_block_mutex);
+
+ return ret;
+};
+
+/**
+ * i2o_block_check_events - Have we seen a media change?
+ * @disk: gendisk which should be verified
+ * @clearing: events being cleared
+ *
+ * Verifies if the media has changed.
+ *
+ * Returns 1 if the media was changed or 0 otherwise.
+ */
+static unsigned int i2o_block_check_events(struct gendisk *disk,
+ unsigned int clearing)
+{
+ struct i2o_block_device *p = disk->private_data;
+
+ if (p->media_change_flag) {
+ p->media_change_flag = 0;
+ return DISK_EVENT_MEDIA_CHANGE;
+ }
+ return 0;
+}
+
+/**
+ * i2o_block_transfer - Transfer a request to/from the I2O controller
+ * @req: the request which should be transferred
+ *
+ * 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;
+ u32 tid;
+ struct i2o_message *msg;
+ u32 *mptr;
+ struct i2o_block_request *ireq = req->special;
+ u32 tcntxt;
+ u32 sgl_offset = SGL_OFFSET_8;
+ u32 ctl_flags = 0x00000000;
+ int rc;
+ u32 cmd;
+
+ if (unlikely(!dev->i2o_dev)) {
+ osm_err("transfer to removed drive\n");
+ rc = -ENODEV;
+ goto exit;
+ }
+
+ tid = dev->i2o_dev->lct_data.tid;
+ c = dev->i2o_dev->iop;
+
+ msg = i2o_msg_get(c);
+ if (IS_ERR(msg)) {
+ rc = PTR_ERR(msg);
+ goto exit;
+ }
+
+ tcntxt = i2o_cntxt_list_add(c, req);
+ if (!tcntxt) {
+ rc = -ENOMEM;
+ goto nop_msg;
+ }
+
+ msg->u.s.icntxt = cpu_to_le32(i2o_block_driver.context);
+ msg->u.s.tcntxt = cpu_to_le32(tcntxt);
+
+ mptr = &msg->body[0];
+
+ if (rq_data_dir(req) == READ) {
+ cmd = I2O_CMD_BLOCK_READ << 24;
+
+ switch (dev->rcache) {
+ case CACHE_PREFETCH:
+ ctl_flags = 0x201F0008;
+ break;
+
+ case CACHE_SMARTFETCH:
+ if (blk_rq_sectors(req) > 16)
+ ctl_flags = 0x201F0008;
+ else
+ ctl_flags = 0x001F0000;
+ break;
+
+ default:
+ break;
+ }
+ } else {
+ cmd = I2O_CMD_BLOCK_WRITE << 24;
+
+ switch (dev->wcache) {
+ case CACHE_WRITETHROUGH:
+ ctl_flags = 0x001F0008;
+ break;
+ case CACHE_WRITEBACK:
+ ctl_flags = 0x001F0010;
+ break;
+ case CACHE_SMARTBACK:
+ if (blk_rq_sectors(req) > 16)
+ ctl_flags = 0x001F0004;
+ else
+ ctl_flags = 0x001F0010;
+ break;
+ case CACHE_SMARTTHROUGH:
+ if (blk_rq_sectors(req) > 16)
+ ctl_flags = 0x001F0004;
+ else
+ ctl_flags = 0x001F0010;
+ default:
+ break;
+ }
+ }
+
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+ if (c->adaptec) {
+ u8 cmd[10];
+ u32 scsi_flags;
+ u16 hwsec;
+
+ hwsec = queue_logical_block_size(req->q) >> KERNEL_SECTOR_SHIFT;
+ memset(cmd, 0, 10);
+
+ sgl_offset = SGL_OFFSET_12;
+
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_PRIVATE << 24 | HOST_TID << 12 | tid);
+
+ *mptr++ = cpu_to_le32(I2O_VENDOR_DPT << 16 | I2O_CMD_SCSI_EXEC);
+ *mptr++ = cpu_to_le32(tid);
+
+ /*
+ * ENABLE_DISCONNECT
+ * SIMPLE_TAG
+ * RETURN_SENSE_DATA_IN_REPLY_MESSAGE_FRAME
+ */
+ if (rq_data_dir(req) == READ) {
+ cmd[0] = READ_10;
+ scsi_flags = 0x60a0000a;
+ } else {
+ cmd[0] = WRITE_10;
+ scsi_flags = 0xa0a0000a;
+ }
+
+ *mptr++ = cpu_to_le32(scsi_flags);
+
+ *((u32 *) & cmd[2]) = cpu_to_be32(blk_rq_pos(req) * hwsec);
+ *((u16 *) & cmd[7]) = cpu_to_be16(blk_rq_sectors(req) * hwsec);
+
+ memcpy(mptr, cmd, 10);
+ mptr += 4;
+ *mptr++ = cpu_to_le32(blk_rq_bytes(req));
+ } else
+#endif
+ {
+ msg->u.head[1] = cpu_to_le32(cmd | HOST_TID << 12 | tid);
+ *mptr++ = cpu_to_le32(ctl_flags);
+ *mptr++ = cpu_to_le32(blk_rq_bytes(req));
+ *mptr++ =
+ cpu_to_le32((u32) (blk_rq_pos(req) << KERNEL_SECTOR_SHIFT));
+ *mptr++ =
+ cpu_to_le32(blk_rq_pos(req) >> (32 - KERNEL_SECTOR_SHIFT));
+ }
+
+ if (!i2o_block_sglist_alloc(c, ireq, &mptr)) {
+ rc = -ENOMEM;
+ goto context_remove;
+ }
+
+ msg->u.head[0] =
+ cpu_to_le32(I2O_MESSAGE_SIZE(mptr - &msg->u.head[0]) | sgl_offset);
+
+ list_add_tail(&ireq->queue, &dev->open_queue);
+ dev->open_queue_depth++;
+
+ i2o_msg_post(c, msg);
+
+ return 0;
+
+ context_remove:
+ i2o_cntxt_list_remove(c, req);
+
+ nop_msg:
+ i2o_msg_nop(c, msg);
+
+ exit:
+ return rc;
+};
+
+/**
+ * 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 ((req = blk_peek_request(q)) != NULL) {
+ if (req->cmd_type == REQ_TYPE_FS) {
+ 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)) {
+ blk_start_request(req);
+ continue;
+ } else
+ osm_info("transfer error\n");
+ }
+
+ if (queue_depth)
+ break;
+
+ /* stop the queue and retry later */
+ dreq = kmalloc(sizeof(*dreq), GFP_ATOMIC);
+ if (!dreq)
+ continue;
+
+ dreq->queue = q;
+ INIT_DELAYED_WORK(&dreq->work,
+ i2o_block_delayed_request_fn);
+
+ if (!queue_delayed_work(i2o_block_driver.event_queue,
+ &dreq->work,
+ I2O_BLOCK_RETRY_TIME))
+ kfree(dreq);
+ else {
+ blk_stop_queue(q);
+ break;
+ }
+ } else {
+ blk_start_request(req);
+ __blk_end_request_all(req, -EIO);
+ }
+ }
+};
+
+/* I2O Block device operations definition */
+static const struct block_device_operations i2o_block_fops = {
+ .owner = THIS_MODULE,
+ .open = i2o_block_open,
+ .release = i2o_block_release,
+ .ioctl = i2o_block_ioctl,
+ .compat_ioctl = i2o_block_ioctl,
+ .getgeo = i2o_block_getgeo,
+ .check_events = i2o_block_check_events,
+};
+
+/**
+ * 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 success 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 = kzalloc(sizeof(*dev), GFP_KERNEL);
+ if (!dev) {
+ osm_err("Insufficient memory to allocate I2O Block disk.\n");
+ rc = -ENOMEM;
+ goto exit;
+ }
+
+ 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) {
+ osm_err("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) {
+ osm_err("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_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_controller *c = i2o_dev->iop;
+ struct i2o_block_device *i2o_blk_dev;
+ struct gendisk *gd;
+ struct request_queue *queue;
+ static int unit = 0;
+ int rc;
+ u64 size;
+ u32 blocksize;
+ u16 body_size = 4;
+ u16 power;
+ unsigned short max_sectors;
+
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+ if (c->adaptec)
+ body_size = 8;
+#endif
+
+ if (c->limit_sectors)
+ max_sectors = I2O_MAX_SECTORS_LIMITED;
+ else
+ max_sectors = I2O_MAX_SECTORS;
+
+ /* skip devices which are used by IOP */
+ if (i2o_dev->lct_data.user_tid != 0xfff) {
+ osm_debug("skipping used device %03x\n", i2o_dev->lct_data.tid);
+ return -ENODEV;
+ }
+
+ if (i2o_device_claim(i2o_dev)) {
+ osm_warn("Unable to claim device. Installation aborted\n");
+ rc = -EFAULT;
+ goto exit;
+ }
+
+ i2o_blk_dev = i2o_block_device_alloc();
+ if (IS_ERR(i2o_blk_dev)) {
+ osm_err("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);
+ gd->driverfs_dev = &i2o_dev->device;
+
+ /* setup request queue */
+ queue = gd->queue;
+ queue->queuedata = i2o_blk_dev;
+
+ blk_queue_max_hw_sectors(queue, max_sectors);
+ blk_queue_max_segments(queue, i2o_sg_tablesize(c, body_size));
+
+ osm_debug("max sectors = %d\n", queue->max_sectors);
+ osm_debug("phys segments = %d\n", queue->max_phys_segments);
+ osm_debug("max hw segments = %d\n", queue->max_hw_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) ||
+ !i2o_parm_field_get(i2o_dev, 0x0000, 3, &blocksize, 4)) {
+ blk_queue_logical_block_size(queue, le32_to_cpu(blocksize));
+ } else
+ osm_warn("unable to get blocksize of %s\n", gd->disk_name);
+
+ if (!i2o_parm_field_get(i2o_dev, 0x0004, 0, &size, 8) ||
+ !i2o_parm_field_get(i2o_dev, 0x0000, 4, &size, 8)) {
+ set_capacity(gd, le64_to_cpu(size) >> KERNEL_SECTOR_SHIFT);
+ } else
+ osm_warn("could not get size of %s\n", gd->disk_name);
+
+ if (!i2o_parm_field_get(i2o_dev, 0x0000, 2, &power, 2))
+ i2o_blk_dev->power = power;
+
+ i2o_event_register(i2o_dev, &i2o_block_driver, 0, 0xffffffff);
+
+ add_disk(gd);
+
+ unit++;
+
+ osm_info("device added (TID: %03x): %s\n", i2o_dev->lct_data.tid,
+ i2o_blk_dev->gd->disk_name);
+
+ return 0;
+
+ claim_release:
+ i2o_device_claim_release(i2o_dev);
+
+ exit:
+ return rc;
+};
+
+/* Block OSM driver struct */
+static struct i2o_driver i2o_block_driver = {
+ .name = OSM_NAME,
+ .event = i2o_block_event,
+ .reply = i2o_block_reply,
+ .classes = i2o_block_class_id,
+ .driver = {
+ .probe = i2o_block_probe,
+ .remove = i2o_block_remove,
+ },
+};
+
+/**
+ * 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 OSM_DESCRIPTION " v" OSM_VERSION "\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);
+ if (!i2o_blk_req_pool.slab) {
+ osm_err("can't init request slab\n");
+ rc = -ENOMEM;
+ goto exit;
+ }
+
+ i2o_blk_req_pool.pool =
+ mempool_create_slab_pool(I2O_BLOCK_REQ_MEMPOOL_SIZE,
+ i2o_blk_req_pool.slab);
+ if (!i2o_blk_req_pool.pool) {
+ osm_err("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) {
+ osm_err("unable to register block device\n");
+ goto free_mempool;
+ }
+#ifdef MODULE
+ osm_info("registered device at major %d\n", I2O_MAJOR);
+#endif
+
+ /* Register Block OSM into I2O core */
+ rc = i2o_driver_register(&i2o_block_driver);
+ if (rc) {
+ osm_err("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_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_block_init);
+module_exit(i2o_block_exit);
--- /dev/null
+/*
+ * 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
+
+/* request queue sizes */
+#define I2O_BLOCK_REQ_MEMPOOL_SIZE 32
+
+#define KERNEL_SECTOR_SHIFT 9
+#define KERNEL_SECTOR_SIZE (1 << KERNEL_SECTOR_SHIFT)
+
+/* I2O Block OSM mempool struct */
+struct i2o_block_mempool {
+ struct kmem_cache *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 transferred, 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;
+ u16 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 */
+ struct device *dev; /* device used for DMA */
+ int sg_nents; /* number of SG elements */
+ struct scatterlist sg_table[I2O_MAX_PHYS_SEGMENTS]; /* SG table */
+};
+
+/* I2O Block device delayed request */
+struct i2o_block_delayed_request {
+ struct delayed_work work;
+ struct request_queue *queue;
+};
+
+#endif
--- /dev/null
+/*
+ * 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 Häkkinen (09/10/1999):
+ * Changes to i2o_cfg_reply(), ioctl_parms()
+ * Added ioct_validate()
+ * Taneli Vähäkangas (09/30/1999):
+ * Fixed ioctl_swdl()
+ * Taneli Vähäkangas (10/04/1999):
+ * Changed ioctl_swdl(), implemented ioctl_swul() and ioctl_swdel()
+ * Deepak Saxena (11/18/1999):
+ * Added event managmenet support
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>:
+ * 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/miscdevice.h>
+#include <linux/mutex.h>
+#include <linux/compat.h>
+#include <linux/slab.h>
+
+#include <asm/uaccess.h>
+
+#include "core.h"
+
+#define SG_TABLESIZE 30
+
+static DEFINE_MUTEX(i2o_cfg_mutex);
+static long i2o_cfg_ioctl(struct file *, unsigned int, unsigned long);
+
+static spinlock_t i2o_config_lock;
+
+#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 arg)
+{
+ struct i2o_controller *c;
+ u8 __user *user_iop_table = (void __user *)arg;
+ u8 tmp[MAX_I2O_CONTROLLERS];
+ int ret = 0;
+
+ memset(tmp, 0, MAX_I2O_CONTROLLERS);
+
+ list_for_each_entry(c, &i2o_controllers, list)
+ tmp[c->unit] = 1;
+
+ if (copy_to_user(user_iop_table, tmp, MAX_I2O_CONTROLLERS))
+ ret = -EFAULT;
+
+ return ret;
+};
+
+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);
+
+ if (put_user(len, kcmd.reslen))
+ ret = -EFAULT;
+ else if (len > reslen)
+ ret = -ENOBUFS;
+ else 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;
+ if (put_user(len, kcmd.reslen))
+ ret = -EFAULT;
+ else 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;
+
+ /*
+ * Stop users being able to try and allocate arbitrary amounts
+ * of DMA space. 64K is way more than sufficient for this.
+ */
+ if (kcmd.oplen > 65536)
+ return -EMSGSIZE;
+
+ ops = memdup_user(kcmd.opbuf, kcmd.oplen);
+ if (IS_ERR(ops))
+ return PTR_ERR(ops);
+
+ /*
+ * It's possible to have a _very_ large table
+ * and that the user asks for all of it at once...
+ */
+ res = 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;
+ }
+
+ if (put_user(len, kcmd.reslen))
+ ret = -EFAULT;
+ else 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;
+ 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;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
+ i2o_msg_nop(c, msg);
+ return -ENOMEM;
+ }
+
+ if (__copy_from_user(buffer.virt, kxfer.buf, fragsize)) {
+ i2o_msg_nop(c, msg);
+ i2o_dma_free(&c->pdev->dev, &buffer);
+ return -EFAULT;
+ }
+
+ msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SW_DOWNLOAD << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(0);
+ msg->body[0] =
+ cpu_to_le32((((u32) kxfer.flags) << 24) | (((u32) kxfer.
+ sw_type) << 16) |
+ (((u32) maxfrag) << 8) | (((u32) curfrag)));
+ msg->body[1] = cpu_to_le32(swlen);
+ msg->body[2] = cpu_to_le32(kxfer.sw_id);
+ msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
+ msg->body[4] = cpu_to_le32(buffer.phys);
+
+ osm_debug("swdl frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
+ status = i2o_msg_post_wait_mem(c, msg, 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
+ osm_info("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;
+ unsigned int status = 0, swlen = 0, fragsize = 8192;
+ struct i2o_controller *c;
+ int ret = 0;
+
+ 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)
+ return -EFAULT;
+
+ c = i2o_find_iop(kxfer.iop);
+ if (!c)
+ return -ENXIO;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ if (i2o_dma_alloc(&c->pdev->dev, &buffer, fragsize)) {
+ i2o_msg_nop(c, msg);
+ return -ENOMEM;
+ }
+
+ msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_7);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SW_UPLOAD << 24 | HOST_TID << 12 | ADAPTER_TID);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(0);
+ msg->body[0] =
+ cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.
+ sw_type << 16 | (u32) maxfrag << 8 | (u32) curfrag);
+ msg->body[1] = cpu_to_le32(swlen);
+ msg->body[2] = cpu_to_le32(kxfer.sw_id);
+ msg->body[3] = cpu_to_le32(0xD0000000 | fragsize);
+ msg->body[4] = cpu_to_le32(buffer.phys);
+
+ osm_debug("swul frag %d/%d (size %d)\n", curfrag, maxfrag, fragsize);
+ status = i2o_msg_post_wait_mem(c, msg, 60, &buffer);
+
+ if (status != I2O_POST_WAIT_OK) {
+ if (status != -ETIMEDOUT)
+ i2o_dma_free(&c->pdev->dev, &buffer);
+
+ osm_info("swul failed, DetailedStatus = %d\n", status);
+ return status;
+ }
+
+ if (copy_to_user(kxfer.buf, buffer.virt, fragsize))
+ ret = -EFAULT;
+
+ i2o_dma_free(&c->pdev->dev, &buffer);
+
+ return ret;
+}
+
+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;
+ 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;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(SEVEN_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SW_REMOVE << 24 | HOST_TID << 12 | ADAPTER_TID);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(0);
+ msg->body[0] =
+ cpu_to_le32((u32) kxfer.flags << 24 | (u32) kxfer.sw_type << 16);
+ msg->body[1] = cpu_to_le32(swlen);
+ msg->body[2] = cpu_to_le32(kxfer.sw_id);
+
+ token = i2o_msg_post_wait(c, msg, 10);
+
+ if (token != I2O_POST_WAIT_OK) {
+ osm_info("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;
+ struct i2o_controller *c;
+
+ c = i2o_find_iop(iop);
+ if (!c)
+ return -ENXIO;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_CONFIG_VALIDATE << 24 | HOST_TID << 12 | iop);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(0);
+
+ token = i2o_msg_post_wait(c, msg, 10);
+
+ if (token != I2O_POST_WAIT_OK) {
+ osm_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;
+ 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;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 |
+ kdesc.tid);
+ msg->u.head[2] = cpu_to_le32(i2o_config_driver.context);
+ msg->u.head[3] = cpu_to_le32(i2o_cntxt_list_add(c, fp->private_data));
+ msg->body[0] = cpu_to_le32(kdesc.evt_mask);
+
+ i2o_msg_post(c, msg);
+
+ 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;
+}
+
+#ifdef CONFIG_COMPAT
+static int i2o_cfg_passthru32(struct file *file, unsigned cmnd,
+ unsigned long arg)
+{
+ struct i2o_cmd_passthru32 __user *cmd;
+ struct i2o_controller *c;
+ u32 __user *user_msg;
+ u32 *reply = NULL;
+ u32 __user *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;
+ u32 sg_index = 0;
+ i2o_status_block *sb;
+ struct i2o_message *msg;
+ unsigned int iop;
+
+ cmd = (struct i2o_cmd_passthru32 __user *)arg;
+
+ if (get_user(iop, &cmd->iop) || get_user(i, &cmd->msg))
+ return -EFAULT;
+
+ user_msg = compat_ptr(i);
+
+ c = i2o_find_iop(iop);
+ if (!c) {
+ osm_debug("controller %d not found\n", iop);
+ return -ENXIO;
+ }
+
+ sb = c->status_block.virt;
+
+ if (get_user(size, &user_msg[0])) {
+ osm_warn("unable to get size!\n");
+ return -EFAULT;
+ }
+ size = size >> 16;
+
+ if (size > sb->inbound_frame_size) {
+ osm_warn("size of message > inbound_frame_size");
+ return -EFAULT;
+ }
+
+ user_reply = &user_msg[size];
+
+ size <<= 2; // Convert to bytes
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ rcode = -EFAULT;
+ /* Copy in the user's I2O command */
+ if (copy_from_user(msg, user_msg, size)) {
+ osm_warn("unable to copy user message\n");
+ goto out;
+ }
+ i2o_dump_message(msg);
+
+ if (get_user(reply_size, &user_reply[0]) < 0)
+ goto out;
+
+ reply_size >>= 16;
+ reply_size <<= 2;
+
+ rcode = -ENOMEM;
+ reply = kzalloc(reply_size, GFP_KERNEL);
+ if (!reply) {
+ printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
+ c->name);
+ goto out;
+ }
+
+ sg_offset = (msg->u.head[0] >> 4) & 0x0f;
+
+ 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->u.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);
+ rcode = -EINVAL;
+ goto cleanup;
+ }
+
+ 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[sg_index]);
+ /* Allocate memory for the transfer */
+ if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
+ 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 sg_list_cleanup;
+ }
+ sg_index++;
+ /* 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 __user *)(unsigned long)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 sg_list_cleanup;
+ }
+ }
+ //TODO 64bit fix
+ sg[i].addr_bus = (u32) p->phys;
+ }
+ }
+
+ rcode = i2o_msg_post_wait(c, msg, 60);
+ msg = NULL;
+ if (rcode) {
+ reply[4] = ((u32) rcode) << 24;
+ goto sg_list_cleanup;
+ }
+
+ if (sg_offset) {
+ u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
+ /* 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(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
+ // get user msg size in u32s
+ if (get_user(size, &user_msg[0])) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ size = size >> 16;
+ size *= 4;
+ if (size > sizeof(rmsg)) {
+ rcode = -EINVAL;
+ goto sg_list_cleanup;
+ }
+
+ /* Copy in the user's I2O command */
+ if (copy_from_user(rmsg, user_msg, size)) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ sg_count =
+ (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+
+ // TODO 64bit fix
+ sg = (struct sg_simple_element *)(rmsg + 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 sg_list_cleanup;
+ }
+ }
+ }
+ }
+
+sg_list_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;
+ }
+ }
+ for (i = 0; i < sg_index; i++)
+ i2o_dma_free(&c->pdev->dev, &sg_list[i]);
+
+cleanup:
+ kfree(reply);
+out:
+ if (msg)
+ i2o_msg_nop(c, msg);
+ return rcode;
+}
+
+static long i2o_cfg_compat_ioctl(struct file *file, unsigned cmd,
+ unsigned long arg)
+{
+ int ret;
+ switch (cmd) {
+ case I2OGETIOPS:
+ ret = i2o_cfg_ioctl(file, cmd, arg);
+ break;
+ case I2OPASSTHRU32:
+ mutex_lock(&i2o_cfg_mutex);
+ ret = i2o_cfg_passthru32(file, cmd, arg);
+ mutex_unlock(&i2o_cfg_mutex);
+ break;
+ default:
+ ret = -ENOIOCTLCMD;
+ break;
+ }
+ return ret;
+}
+
+#endif
+
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+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 *reply = NULL;
+ u32 __user *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;
+ int sg_index = 0;
+ u32 i = 0;
+ i2o_status_block *sb;
+ struct i2o_message *msg;
+ unsigned int iop;
+
+ if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg))
+ return -EFAULT;
+
+ c = i2o_find_iop(iop);
+ if (!c) {
+ osm_warn("controller %d not found\n", iop);
+ return -ENXIO;
+ }
+
+ sb = c->status_block.virt;
+
+ if (get_user(size, &user_msg[0]))
+ return -EFAULT;
+ size = size >> 16;
+
+ if (size > sb->inbound_frame_size) {
+ osm_warn("size of message > inbound_frame_size");
+ return -EFAULT;
+ }
+
+ user_reply = &user_msg[size];
+
+ size <<= 2; // Convert to bytes
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ rcode = -EFAULT;
+ /* Copy in the user's I2O command */
+ if (copy_from_user(msg, user_msg, size))
+ goto out;
+
+ if (get_user(reply_size, &user_reply[0]) < 0)
+ goto out;
+
+ reply_size >>= 16;
+ reply_size <<= 2;
+
+ reply = kzalloc(reply_size, GFP_KERNEL);
+ if (!reply) {
+ printk(KERN_WARNING "%s: Could not allocate reply buffer\n",
+ c->name);
+ rcode = -ENOMEM;
+ goto out;
+ }
+
+ sg_offset = (msg->u.head[0] >> 4) & 0x0f;
+
+ memset(sg_list, 0, sizeof(sg_list[0]) * SG_TABLESIZE);
+ if (sg_offset) {
+ struct sg_simple_element *sg;
+ struct i2o_dma *p;
+
+ if (sg_offset * 4 >= size) {
+ rcode = -EFAULT;
+ goto cleanup;
+ }
+ // TODO 64bit fix
+ sg = (struct sg_simple_element *)((&msg->u.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);
+ rcode = -EINVAL;
+ goto cleanup;
+ }
+
+ 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 sg_list_cleanup;
+ }
+ sg_size = sg[i].flag_count & 0xffffff;
+ p = &(sg_list[sg_index]);
+ if (i2o_dma_alloc(&c->pdev->dev, p, sg_size)) {
+ /* Allocate memory for the transfer */
+ 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 sg_list_cleanup;
+ }
+ sg_index++;
+ /* 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 __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 sg_list_cleanup;
+ }
+ }
+ sg[i].addr_bus = p->phys;
+ }
+ }
+
+ rcode = i2o_msg_post_wait(c, msg, 60);
+ msg = NULL;
+ if (rcode) {
+ reply[4] = ((u32) rcode) << 24;
+ goto sg_list_cleanup;
+ }
+
+ if (sg_offset) {
+ u32 rmsg[I2O_OUTBOUND_MSG_FRAME_SIZE];
+ /* 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(&rmsg, 0, I2O_OUTBOUND_MSG_FRAME_SIZE * 4);
+ // get user msg size in u32s
+ if (get_user(size, &user_msg[0])) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ size = size >> 16;
+ size *= 4;
+ if (size > sizeof(rmsg)) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+
+ /* Copy in the user's I2O command */
+ if (copy_from_user(rmsg, user_msg, size)) {
+ rcode = -EFAULT;
+ goto sg_list_cleanup;
+ }
+ sg_count =
+ (size - sg_offset * 4) / sizeof(struct sg_simple_element);
+
+ // TODO 64bit fix
+ sg = (struct sg_simple_element *)(rmsg + 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].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 sg_list_cleanup;
+ }
+ }
+ }
+ }
+
+sg_list_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;
+ }
+ }
+
+ for (i = 0; i < sg_index; i++)
+ i2o_dma_free(&c->pdev->dev, &sg_list[i]);
+
+cleanup:
+ kfree(reply);
+out:
+ if (msg)
+ i2o_msg_nop(c, msg);
+ return rcode;
+}
+#endif
+
+/*
+ * IOCTL Handler
+ */
+static long i2o_cfg_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
+{
+ int ret;
+
+ mutex_lock(&i2o_cfg_mutex);
+ 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;
+
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+ case I2OPASSTHRU:
+ ret = i2o_cfg_passthru(arg);
+ break;
+#endif
+
+ default:
+ osm_debug("unknown ioctl called!\n");
+ ret = -EINVAL;
+ }
+ mutex_unlock(&i2o_cfg_mutex);
+ return ret;
+}
+
+static int cfg_open(struct inode *inode, struct file *file)
+{
+ struct i2o_cfg_info *tmp = kmalloc(sizeof(struct i2o_cfg_info),
+ GFP_KERNEL);
+ unsigned long flags;
+
+ if (!tmp)
+ return -ENOMEM;
+
+ mutex_lock(&i2o_cfg_mutex);
+ 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);
+ mutex_unlock(&i2o_cfg_mutex);
+
+ return 0;
+}
+
+static int cfg_fasync(int fd, struct file *fp, int on)
+{
+ ulong id = (ulong) fp->private_data;
+ struct i2o_cfg_info *p;
+ int ret = -EBADF;
+
+ mutex_lock(&i2o_cfg_mutex);
+ for (p = open_files; p; p = p->next)
+ if (p->q_id == id)
+ break;
+
+ if (p)
+ ret = fasync_helper(fd, fp, on, &p->fasync);
+ mutex_unlock(&i2o_cfg_mutex);
+ return ret;
+}
+
+static int cfg_release(struct inode *inode, struct file *file)
+{
+ ulong id = (ulong) file->private_data;
+ struct i2o_cfg_info *p, **q;
+ unsigned long flags;
+
+ mutex_lock(&i2o_cfg_mutex);
+ spin_lock_irqsave(&i2o_config_lock, flags);
+ for (q = &open_files; (p = *q) != NULL; q = &p->next) {
+ if (p->q_id == id) {
+ *q = p->next;
+ kfree(p);
+ break;
+ }
+ }
+ spin_unlock_irqrestore(&i2o_config_lock, flags);
+ mutex_unlock(&i2o_cfg_mutex);
+
+ return 0;
+}
+
+static const struct file_operations config_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .unlocked_ioctl = i2o_cfg_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = i2o_cfg_compat_ioctl,
+#endif
+ .open = cfg_open,
+ .release = cfg_release,
+ .fasync = cfg_fasync,
+};
+
+static struct miscdevice i2o_miscdev = {
+ I2O_MINOR,
+ "i2octl",
+ &config_fops
+};
+
+static int __init i2o_config_old_init(void)
+{
+ spin_lock_init(&i2o_config_lock);
+
+ if (misc_register(&i2o_miscdev) < 0) {
+ osm_err("can't register device.\n");
+ return -EBUSY;
+ }
+
+ return 0;
+}
+
+static void i2o_config_old_exit(void)
+{
+ misc_deregister(&i2o_miscdev);
+}
+
+MODULE_AUTHOR("Red Hat Software");
--- /dev/null
+/*
+ * 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 Sievänen (Juha.Sievanen@cs.Helsinki.FI),
+ * Auvo Häkkinen (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
+ */
+
+#define OSM_NAME "proc-osm"
+#define OSM_VERSION "1.316"
+#define OSM_DESCRIPTION "I2O ProcFS OSM"
+
+#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 "i2o.h"
+#include <linux/slab.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 */
+ umode_t mode; /* mode */
+ const struct file_operations *fops; /* open function */
+} i2o_proc_entry;
+
+/* 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 = OSM_NAME,
+};
+
+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 @ %pM", &serialno[2]);
+ 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:?] %pM",
+ serialno[8], serialno[9], &serialno[2]);
+ 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:
+ 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];
+}
+
+#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(char *tmp, u8 *chars, int n)
+{
+ 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",
+ "PCI",
+ "PCMCIA",
+ "NUBUS",
+ "CARDBUS"
+};
+
+static 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_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;
+}
+
+static 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:
+ 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;
+}
+
+static 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;
+}
+
+static 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) */
+static 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;
+ char tmp[28 + 1];
+
+ 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(tmp, 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) */
+static 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) */
+static 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;
+ char tmp[28 + 1];
+
+ 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, " ");
+ }
+
+ seq_printf(seq, "%-#7x", dst->i2o_vendor_id);
+ seq_printf(seq, "%-#8x", dst->module_id);
+ seq_printf(seq, "%-29s",
+ chtostr(tmp, dst->module_name_version, 28));
+ seq_printf(seq, "%-9s", chtostr(tmp, 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);
+ seq_printf(seq, "\n");
+ }
+
+ kfree(result);
+ return 0;
+}
+
+/* Generic group F000h - Params Descriptor (table) */
+static 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) */
+static 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) */
+static 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) */
+static 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) */
+static 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) */
+static 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) */
+static 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;
+ char tmp[16 + 1];
+
+ 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(tmp, (u8 *) (work32 + 2), 16));
+ seq_printf(seq, "Product info : %s\n",
+ chtostr(tmp, (u8 *) (work32 + 6), 16));
+ seq_printf(seq, "Description : %s\n",
+ chtostr(tmp, (u8 *) (work32 + 10), 16));
+ seq_printf(seq, "Product rev. : %s\n",
+ chtostr(tmp, (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;
+}
+
+static 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", dev_name(&d->device));
+
+ return 0;
+}
+
+/* Generic group F101h - DDM Identity (scalar) */
+static 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;
+
+ char tmp[24 + 1];
+
+ 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(tmp, result.module_name, 24));
+ seq_printf(seq, "Module revision : %s\n",
+ chtostr(tmp, 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) */
+static 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;
+
+ char tmp[64 + 1];
+
+ 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(tmp, result.device_name, 64));
+ seq_printf(seq, "Service name : %s\n",
+ chtostr(tmp, result.service_name, 64));
+ seq_printf(seq, "Physical name : %s\n",
+ chtostr(tmp, result.physical_location, 64));
+ seq_printf(seq, "Instance number : %s\n",
+ chtostr(tmp, result.instance_number, 4));
+
+ return 0;
+}
+
+/* Generic group F103h - SGL Operating Limits (scalar) */
+static 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) */
+static 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;
+}
+
+static int i2o_seq_open_hrt(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_hrt, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_lct(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_lct, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_status(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_status, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_hw(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_hw, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_ddm_table(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_ddm_table, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_driver_store(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_driver_store, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_drivers_stored(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_drivers_stored, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_groups(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_groups, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_phys_device(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_phys_device, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_claimed(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_claimed, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_users(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_users, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_priv_msgs(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_priv_msgs, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_authorized_users(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_authorized_users,
+ PDE_DATA(inode));
+};
+
+static int i2o_seq_open_dev_identity(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_dev_identity, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_ddm_identity(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_ddm_identity, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_uinfo(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_uinfo, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_sgl_limits(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_sgl_limits, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_sensors(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_sensors, PDE_DATA(inode));
+};
+
+static int i2o_seq_open_dev_name(struct inode *inode, struct file *file)
+{
+ return single_open(file, i2o_seq_show_dev_name, PDE_DATA(inode));
+};
+
+static const struct file_operations i2o_seq_fops_lct = {
+ .open = i2o_seq_open_lct,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_hrt = {
+ .open = i2o_seq_open_hrt,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_status = {
+ .open = i2o_seq_open_status,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_hw = {
+ .open = i2o_seq_open_hw,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_ddm_table = {
+ .open = i2o_seq_open_ddm_table,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_driver_store = {
+ .open = i2o_seq_open_driver_store,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_drivers_stored = {
+ .open = i2o_seq_open_drivers_stored,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_groups = {
+ .open = i2o_seq_open_groups,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_phys_device = {
+ .open = i2o_seq_open_phys_device,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_claimed = {
+ .open = i2o_seq_open_claimed,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_users = {
+ .open = i2o_seq_open_users,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_priv_msgs = {
+ .open = i2o_seq_open_priv_msgs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_authorized_users = {
+ .open = i2o_seq_open_authorized_users,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_dev_name = {
+ .open = i2o_seq_open_dev_name,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_dev_identity = {
+ .open = i2o_seq_open_dev_identity,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_ddm_identity = {
+ .open = i2o_seq_open_ddm_identity,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_uinfo = {
+ .open = i2o_seq_open_uinfo,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const struct file_operations i2o_seq_fops_sgl_limits = {
+ .open = i2o_seq_open_sgl_limits,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+};
+
+static const 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}
+};
+
+/**
+ * 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 = proc_create_data(i2o_pe->name, i2o_pe->mode, dir,
+ i2o_pe->fops, data);
+ if (!tmp)
+ return -1;
+
+ i2o_pe++;
+ }
+
+ return 0;
+}
+
+/**
+ * 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);
+
+ osm_debug("adding device /proc/i2o/%s/%s\n", dev->iop->name, buff);
+
+ devdir = proc_mkdir_data(buff, 0, dir, dev);
+ if (!devdir) {
+ osm_warn("Could not allocate procdir!\n");
+ return;
+ }
+
+ 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_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;
+
+ osm_debug("adding IOP /proc/i2o/%s\n", c->name);
+
+ iopdir = proc_mkdir_data(c->name, 0, dir, c);
+ if (!iopdir)
+ return -1;
+
+ 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_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", NULL);
+ if (!i2o_proc_dir_root)
+ return -1;
+
+ 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)
+{
+ remove_proc_subtree("i2o", NULL);
+
+ 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;
+
+ printk(KERN_INFO OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+ 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_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_proc_init);
+module_exit(i2o_proc_exit);
--- /dev/null
+/*
+ * 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 <linux/blkdev.h>
+#include "i2o.h"
+#include <linux/scatterlist.h>
+
+#include <asm/dma.h>
+#include <asm/io.h>
+#include <linux/atomic.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/sg.h>
+
+#define OSM_NAME "scsi-osm"
+#define OSM_VERSION "1.316"
+#define OSM_DESCRIPTION "I2O SCSI Peripheral OSM"
+
+static struct i2o_driver i2o_scsi_driver;
+
+static unsigned int i2o_scsi_max_id = 16;
+static unsigned int i2o_scsi_max_lun = 255;
+
+struct i2o_scsi_host {
+ struct Scsi_Host *scsi_host; /* pointer to the SCSI host */
+ struct i2o_controller *iop; /* pointer to the I2O controller */
+ u64 lun; /* lun's used for block devices */
+ struct i2o_device *channel[0]; /* channel->i2o_dev mapping table */
+};
+
+static struct scsi_host_template i2o_scsi_host_template;
+
+#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}
+};
+
+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;
+ u16 body_size = 6;
+
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+ if (c->adaptec)
+ body_size = 8;
+#endif
+
+ list_for_each_entry(i2o_dev, &c->devices, list)
+ if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER) {
+ if (!i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
+ && (type == 0x01)) /* SCSI bus */
+ max_channel++;
+ }
+
+ if (!max_channel) {
+ osm_warn("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) {
+ osm_warn("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;
+ scsi_host->sg_tablesize = i2o_sg_tablesize(c, body_size);
+
+ i2o_shost = (struct i2o_scsi_host *)scsi_host->hostdata;
+ i2o_shost->scsi_host = scsi_host;
+ i2o_shost->iop = c;
+ i2o_shost->lun = 1;
+
+ i = 0;
+ list_for_each_entry(i2o_dev, &c->devices, list)
+ if (i2o_dev->lct_data.class_id == I2O_CLASS_BUS_ADAPTER) {
+ if (!i2o_parm_field_get(i2o_dev, 0x0000, 0, &type, 1)
+ && (type == 0x01)) /* 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 NULL on failure.
+ */
+static struct i2o_scsi_host *i2o_scsi_get_host(struct i2o_controller *c)
+{
+ return c->driver_data[i2o_scsi_driver.context];
+};
+
+/**
+ * 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;
+
+ osm_info("device removed (TID: %03x)\n", i2o_dev->lct_data.tid);
+
+ i2o_shost = i2o_scsi_get_host(c);
+
+ shost_for_each_device(scsi_dev, i2o_shost->scsi_host)
+ if (scsi_dev->hostdata == i2o_dev) {
+ sysfs_remove_link(&i2o_dev->device.kobj, "scsi");
+ 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 everything 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 = -1;
+ u64 lun = -1;
+ int channel = -1;
+ int i, rc;
+
+ i2o_shost = i2o_scsi_get_host(c);
+ if (!i2o_shost)
+ return -EFAULT;
+
+ scsi_host = i2o_shost->scsi_host;
+
+ switch (i2o_dev->lct_data.class_id) {
+ case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+ case I2O_CLASS_EXECUTIVE:
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+ if (c->adaptec) {
+ u8 type;
+ struct i2o_device *d = i2o_shost->channel[0];
+
+ if (!i2o_parm_field_get(d, 0x0000, 0, &type, 1)
+ && (type == 0x01)) /* SCSI bus */
+ if (!i2o_parm_field_get(d, 0x0200, 4, &id, 4)) {
+ channel = 0;
+ if (i2o_dev->lct_data.class_id ==
+ I2O_CLASS_RANDOM_BLOCK_STORAGE)
+ lun =
+ cpu_to_le64(i2o_shost->
+ lun++);
+ else
+ lun = 0;
+ }
+ }
+#endif
+ break;
+
+ case I2O_CLASS_SCSI_PERIPHERAL:
+ if (i2o_parm_field_get(i2o_dev, 0x0000, 3, &id, 4))
+ return -EFAULT;
+
+ if (i2o_parm_field_get(i2o_dev, 0x0000, 4, &lun, 8))
+ return -EFAULT;
+
+ parent = i2o_iop_find_device(c, i2o_dev->lct_data.parent_tid);
+ if (!parent) {
+ osm_warn("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;
+ break;
+
+ default:
+ return -EFAULT;
+ }
+
+ if (channel == -1) {
+ osm_warn("can not find channel of device %03x\n",
+ i2o_dev->lct_data.tid);
+ return -EFAULT;
+ }
+
+ if (le32_to_cpu(id) >= scsi_host->max_id) {
+ osm_warn("SCSI device id (%d) >= max_id of I2O host (%d)",
+ le32_to_cpu(id), scsi_host->max_id);
+ return -EFAULT;
+ }
+
+ if (le64_to_cpu(lun) >= scsi_host->max_lun) {
+ osm_warn("SCSI device lun (%llu) >= max_lun of I2O host (%llu)",
+ le64_to_cpu(lun), scsi_host->max_lun);
+ return -EFAULT;
+ }
+
+ scsi_dev =
+ __scsi_add_device(i2o_shost->scsi_host, channel, le32_to_cpu(id),
+ le64_to_cpu(lun), i2o_dev);
+
+ if (IS_ERR(scsi_dev)) {
+ osm_warn("can not add SCSI device %03x\n",
+ i2o_dev->lct_data.tid);
+ return PTR_ERR(scsi_dev);
+ }
+
+ rc = sysfs_create_link(&i2o_dev->device.kobj,
+ &scsi_dev->sdev_gendev.kobj, "scsi");
+ if (rc)
+ goto err;
+
+ osm_info("device added (TID: %03x) channel: %d, id: %d, lun: %llu\n",
+ i2o_dev->lct_data.tid, channel, le32_to_cpu(id),
+ le64_to_cpu(lun));
+
+ return 0;
+
+err:
+ scsi_remove_device(scsi_dev);
+ return rc;
+};
+
+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;
+}
+
+/**
+ * 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;
+ u32 error;
+ struct device *dev;
+
+ cmd = i2o_cntxt_list_get(c, le32_to_cpu(msg->u.s.tcntxt));
+ if (unlikely(!cmd)) {
+ osm_err("NULL reply received!\n");
+ return -1;
+ }
+
+ /*
+ * Low byte is device status, next is adapter status,
+ * (then one byte reserved), then request status.
+ */
+ error = le32_to_cpu(msg->body[0]);
+
+ osm_debug("Completed %0x%p\n", cmd);
+
+ cmd->result = error & 0xff;
+ /*
+ * if DeviceStatus is not SCSI_SUCCESS copy over the sense data and let
+ * the SCSI layer handle the error
+ */
+ if (cmd->result)
+ memcpy(cmd->sense_buffer, &msg->body[3],
+ min(SCSI_SENSE_BUFFERSIZE, 40));
+
+ /* only output error code if AdapterStatus is not HBA_SUCCESS */
+ if ((error >> 8) & 0xff)
+ osm_err("SCSI error %08x\n", error);
+
+ dev = &c->pdev->dev;
+
+ scsi_dma_unmap(cmd);
+
+ cmd->scsi_done(cmd);
+
+ return 1;
+};
+
+/**
+ * i2o_scsi_notify_device_add - Retrieve notifications of added devices
+ * @i2o_dev: the I2O device which was added
+ *
+ * If a I2O device is added we catch the notification, because I2O classes
+ * other than SCSI peripheral will not be received through
+ * i2o_scsi_probe().
+ */
+static void i2o_scsi_notify_device_add(struct i2o_device *i2o_dev)
+{
+ switch (i2o_dev->lct_data.class_id) {
+ case I2O_CLASS_EXECUTIVE:
+ case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+ i2o_scsi_probe(&i2o_dev->device);
+ break;
+
+ default:
+ break;
+ }
+};
+
+/**
+ * i2o_scsi_notify_device_remove - Retrieve notifications of removed devices
+ * @i2o_dev: the I2O device which was removed
+ *
+ * If a I2O device is removed, we catch the notification to remove the
+ * corresponding SCSI device.
+ */
+static void i2o_scsi_notify_device_remove(struct i2o_device *i2o_dev)
+{
+ switch (i2o_dev->lct_data.class_id) {
+ case I2O_CLASS_EXECUTIVE:
+ case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+ i2o_scsi_remove(&i2o_dev->device);
+ break;
+
+ default:
+ break;
+ }
+};
+
+/**
+ * i2o_scsi_notify_controller_add - Retrieve notifications of added controllers
+ * @c: the controller which was added
+ *
+ * If a I2O controller is added, we catch the notification to add a
+ * corresponding Scsi_Host.
+ */
+static void i2o_scsi_notify_controller_add(struct i2o_controller *c)
+{
+ struct i2o_scsi_host *i2o_shost;
+ int rc;
+
+ i2o_shost = i2o_scsi_host_alloc(c);
+ if (IS_ERR(i2o_shost)) {
+ osm_err("Could not initialize SCSI host\n");
+ return;
+ }
+
+ rc = scsi_add_host(i2o_shost->scsi_host, &c->device);
+ if (rc) {
+ osm_err("Could not add SCSI host\n");
+ scsi_host_put(i2o_shost->scsi_host);
+ return;
+ }
+
+ c->driver_data[i2o_scsi_driver.context] = i2o_shost;
+
+ osm_debug("new I2O SCSI host added\n");
+};
+
+/**
+ * i2o_scsi_notify_controller_remove - Retrieve notifications of removed controllers
+ * @c: the controller which was removed
+ *
+ * If a I2O controller is removed, we catch the notification to remove the
+ * corresponding Scsi_Host.
+ */
+static void i2o_scsi_notify_controller_remove(struct i2o_controller *c)
+{
+ struct i2o_scsi_host *i2o_shost;
+ i2o_shost = i2o_scsi_get_host(c);
+ if (!i2o_shost)
+ return;
+
+ c->driver_data[i2o_scsi_driver.context] = NULL;
+
+ scsi_remove_host(i2o_shost->scsi_host);
+ scsi_host_put(i2o_shost->scsi_host);
+ osm_debug("I2O SCSI host removed\n");
+};
+
+/* SCSI OSM driver struct */
+static struct i2o_driver i2o_scsi_driver = {
+ .name = OSM_NAME,
+ .reply = i2o_scsi_reply,
+ .classes = i2o_scsi_class_id,
+ .notify_device_add = i2o_scsi_notify_device_add,
+ .notify_device_remove = i2o_scsi_notify_device_remove,
+ .notify_controller_add = i2o_scsi_notify_controller_add,
+ .notify_controller_remove = i2o_scsi_notify_controller_remove,
+ .driver = {
+ .probe = i2o_scsi_probe,
+ .remove = i2o_scsi_remove,
+ },
+};
+
+/**
+ * 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_lck(struct scsi_cmnd *SCpnt,
+ void (*done) (struct scsi_cmnd *))
+{
+ struct i2o_controller *c;
+ struct i2o_device *i2o_dev;
+ int tid;
+ struct i2o_message *msg;
+ /*
+ * ENABLE_DISCONNECT
+ * SIMPLE_TAG
+ * RETURN_SENSE_DATA_IN_REPLY_MESSAGE_FRAME
+ */
+ u32 scsi_flags = 0x20a00000;
+ u32 sgl_offset;
+ u32 *mptr;
+ u32 cmd = I2O_CMD_SCSI_EXEC << 24;
+ int rc = 0;
+
+ /*
+ * Do the incoming paperwork
+ */
+ i2o_dev = SCpnt->device->hostdata;
+
+ SCpnt->scsi_done = done;
+
+ if (unlikely(!i2o_dev)) {
+ osm_warn("no I2O device in request\n");
+ SCpnt->result = DID_NO_CONNECT << 16;
+ done(SCpnt);
+ goto exit;
+ }
+ c = i2o_dev->iop;
+ tid = i2o_dev->lct_data.tid;
+
+ osm_debug("qcmd: Tid = %03x\n", tid);
+ osm_debug("Real scsi messages.\n");
+
+ /*
+ * Put together a scsi execscb message
+ */
+ switch (SCpnt->sc_data_direction) {
+ case PCI_DMA_NONE:
+ /* DATA NO XFER */
+ sgl_offset = SGL_OFFSET_0;
+ break;
+
+ case PCI_DMA_TODEVICE:
+ /* DATA OUT (iop-->dev) */
+ scsi_flags |= 0x80000000;
+ sgl_offset = SGL_OFFSET_10;
+ break;
+
+ case PCI_DMA_FROMDEVICE:
+ /* DATA IN (iop<--dev) */
+ scsi_flags |= 0x40000000;
+ sgl_offset = SGL_OFFSET_10;
+ break;
+
+ default:
+ /* Unknown - kill the command */
+ SCpnt->result = DID_NO_CONNECT << 16;
+ done(SCpnt);
+ goto exit;
+ }
+
+ /*
+ * Obtain an I2O message. If there are none free then
+ * throw it back to the scsi layer
+ */
+
+ msg = i2o_msg_get(c);
+ if (IS_ERR(msg)) {
+ rc = SCSI_MLQUEUE_HOST_BUSY;
+ goto exit;
+ }
+
+ mptr = &msg->body[0];
+
+#if 0 /* this code can't work */
+#ifdef CONFIG_I2O_EXT_ADAPTEC
+ if (c->adaptec) {
+ u32 adpt_flags = 0;
+
+ if (SCpnt->sc_request && SCpnt->sc_request->upper_private_data) {
+ i2o_sg_io_hdr_t __user *usr_ptr =
+ ((Sg_request *) (SCpnt->sc_request->
+ upper_private_data))->header.
+ usr_ptr;
+
+ if (usr_ptr)
+ get_user(adpt_flags, &usr_ptr->flags);
+ }
+
+ switch (i2o_dev->lct_data.class_id) {
+ case I2O_CLASS_EXECUTIVE:
+ case I2O_CLASS_RANDOM_BLOCK_STORAGE:
+ /* interpret flag has to be set for executive */
+ adpt_flags ^= I2O_DPT_SG_FLAG_INTERPRET;
+ break;
+
+ default:
+ break;
+ }
+
+ /*
+ * for Adaptec controllers we use the PRIVATE command, because
+ * the normal SCSI EXEC doesn't support all SCSI commands on
+ * all controllers (for example READ CAPACITY).
+ */
+ if (sgl_offset == SGL_OFFSET_10)
+ sgl_offset = SGL_OFFSET_12;
+ cmd = I2O_CMD_PRIVATE << 24;
+ *mptr++ = cpu_to_le32(I2O_VENDOR_DPT << 16 | I2O_CMD_SCSI_EXEC);
+ *mptr++ = cpu_to_le32(adpt_flags | tid);
+ }
+#endif
+#endif
+
+ msg->u.head[1] = cpu_to_le32(cmd | HOST_TID << 12 | tid);
+ msg->u.s.icntxt = cpu_to_le32(i2o_scsi_driver.context);
+
+ /* We want the SCSI control block back */
+ msg->u.s.tcntxt = cpu_to_le32(i2o_cntxt_list_add(c, SCpnt));
+
+ /* 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 */
+ /* FIXME: implement
+ 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;
+ }
+ */
+
+ *mptr++ = cpu_to_le32(scsi_flags | SCpnt->cmd_len);
+
+ /* Write SCSI command into the message - always 16 byte block */
+ memcpy(mptr, SCpnt->cmnd, 16);
+ mptr += 4;
+
+ if (sgl_offset != SGL_OFFSET_0) {
+ /* write size of data addressed by SGL */
+ *mptr++ = cpu_to_le32(scsi_bufflen(SCpnt));
+
+ /* Now fill in the SGList and command */
+
+ if (scsi_sg_count(SCpnt)) {
+ if (!i2o_dma_map_sg(c, scsi_sglist(SCpnt),
+ scsi_sg_count(SCpnt),
+ SCpnt->sc_data_direction, &mptr))
+ goto nomem;
+ }
+ }
+
+ /* Stick the headers on */
+ msg->u.head[0] =
+ cpu_to_le32(I2O_MESSAGE_SIZE(mptr - &msg->u.head[0]) | sgl_offset);
+
+ /* Queue the message */
+ i2o_msg_post(c, msg);
+
+ osm_debug("Issued %0x%p\n", SCpnt);
+
+ return 0;
+
+ nomem:
+ rc = -ENOMEM;
+ i2o_msg_nop(c, msg);
+
+ exit:
+ return rc;
+}
+
+static DEF_SCSI_QCMD(i2o_scsi_queuecommand)
+
+/**
+ * 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.
+ *
+ * Returns 0 if the command is successfully aborted or negative error code
+ * on failure.
+ */
+static int i2o_scsi_abort(struct scsi_cmnd *SCpnt)
+{
+ struct i2o_device *i2o_dev;
+ struct i2o_controller *c;
+ struct i2o_message *msg;
+ int tid;
+ int status = FAILED;
+
+ osm_warn("Aborting command block.\n");
+
+ i2o_dev = SCpnt->device->hostdata;
+ c = i2o_dev->iop;
+ tid = i2o_dev->lct_data.tid;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return SCSI_MLQUEUE_HOST_BUSY;
+
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SCSI_ABORT << 24 | HOST_TID << 12 | tid);
+ msg->body[0] = cpu_to_le32(i2o_cntxt_list_get_ptr(c, SCpnt));
+
+ if (!i2o_msg_post_wait(c, msg, I2O_TIMEOUT_SCSI_SCB_ABORT))
+ status = SUCCESS;
+
+ return status;
+}
+
+/**
+ * i2o_scsi_bios_param - Invent disk geometry
+ * @sdev: scsi device
+ * @dev: block layer device
+ * @capacity: size in sectors
+ * @ip: geometry array
+ *
+ * This is anyone's 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;
+}
+
+static struct scsi_host_template i2o_scsi_host_template = {
+ .proc_name = OSM_NAME,
+ .name = OSM_DESCRIPTION,
+ .info = i2o_scsi_info,
+ .queuecommand = i2o_scsi_queuecommand,
+ .eh_abort_handler = i2o_scsi_abort,
+ .bios_param = i2o_scsi_bios_param,
+ .can_queue = I2O_SCSI_CAN_QUEUE,
+ .sg_tablesize = 8,
+ .cmd_per_lun = 6,
+ .use_clustering = ENABLE_CLUSTERING,
+};
+
+/**
+ * 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 OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+ /* Register SCSI OSM into I2O core */
+ rc = i2o_driver_register(&i2o_scsi_driver);
+ if (rc) {
+ osm_err("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)
+{
+ /* Unregister I2O SCSI OSM from I2O core */
+ i2o_driver_unregister(&i2o_scsi_driver);
+};
+
+MODULE_AUTHOR("Red Hat Software");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+module_init(i2o_scsi_init);
+module_exit(i2o_scsi_exit);
--- /dev/null
+/*
+ * 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 Sievänen <Juha.Sievanen@cs.Helsinki.FI>
+ * Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ * Deepak Saxena <deepak@plexity.net>
+ * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>:
+ * Ported to Linux 2.5.
+ * Markus Lidel <Markus.Lidel@shadowconnect.com>:
+ * Minor fixes for 2.6.
+ */
+
+#include <linux/module.h>
+#include "i2o.h"
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include "core.h"
+
+#define OSM_NAME "i2o"
+#define OSM_VERSION "1.325"
+#define OSM_DESCRIPTION "I2O subsystem"
+
+/* 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;
+
+static int i2o_hrt_get(struct i2o_controller *c);
+
+/**
+ * i2o_msg_get_wait - obtain an I2O message from the IOP
+ * @c: I2O controller
+ * @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.
+ */
+struct i2o_message *i2o_msg_get_wait(struct i2o_controller *c, int wait)
+{
+ unsigned long timeout = jiffies + wait * HZ;
+ struct i2o_message *msg;
+
+ while (IS_ERR(msg = i2o_msg_get(c))) {
+ if (time_after(jiffies, timeout)) {
+ osm_debug("%s: Timeout waiting for message frame.\n",
+ c->name);
+ return ERR_PTR(-ETIMEDOUT);
+ }
+ schedule_timeout_uninterruptible(1);
+ }
+
+ return msg;
+};
+
+#if BITS_PER_LONG == 64
+/**
+ * i2o_cntxt_list_add - Append a pointer to context list and return a id
+ * @c: controller to which the context list belong
+ * @ptr: pointer to add to the context list
+ *
+ * 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)
+ osm_err("%s: couldn't add NULL pointer to context list!\n",
+ c->name);
+
+ entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
+ if (!entry) {
+ osm_err("%s: Could not allocate memory for context list element"
+ "\n", c->name);
+ 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);
+
+ osm_debug("%s: Add context to list %p -> %d\n", c->name, ptr, context);
+
+ return entry->context;
+};
+
+/**
+ * i2o_cntxt_list_remove - Remove a pointer from the context list
+ * @c: controller to which the context list belong
+ * @ptr: pointer which should be removed from the context list
+ *
+ * Removes a previously added pointer from the context list and returns
+ * the matching context id.
+ *
+ * Returns context id on success 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)
+ osm_warn("%s: Could not remove nonexistent ptr %p\n", c->name,
+ ptr);
+
+ osm_debug("%s: remove ptr from context list %d -> %p\n", c->name,
+ context, ptr);
+
+ return context;
+};
+
+/**
+ * i2o_cntxt_list_get - Get a pointer from the context list and remove it
+ * @c: controller to which the context list belong
+ * @context: context id to which the pointer belong
+ *
+ * Returns pointer to the matching context id on success or NULL on
+ * failure.
+ */
+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)
+ osm_warn("%s: context id %d not found\n", c->name, context);
+
+ osm_debug("%s: get ptr from context list %d -> %p\n", c->name, context,
+ ptr);
+
+ return ptr;
+};
+
+/**
+ * i2o_cntxt_list_get_ptr - Get a context id from the context list
+ * @c: controller to which the context list belong
+ * @ptr: pointer to which the context id should be fetched
+ *
+ * Returns context id which matches to the pointer on success or 0 on
+ * failure.
+ */
+u32 i2o_cntxt_list_get_ptr(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) {
+ context = entry->context;
+ break;
+ }
+ spin_unlock_irqrestore(&c->context_list_lock, flags);
+
+ if (!context)
+ osm_warn("%s: Could not find nonexistent ptr %p\n", c->name,
+ ptr);
+
+ osm_debug("%s: get context id from context list %p -> %d\n", c->name,
+ ptr, context);
+
+ return context;
+};
+#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 NULL;
+};
+
+/**
+ * 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;
+ 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;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SYS_QUIESCE << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+
+ /* Long timeout needed for quiesce if lots of devices */
+ if ((rc = i2o_msg_post_wait(c, msg, 240)))
+ osm_info("%s: Unable to quiesce (status=%#x).\n", c->name, -rc);
+ else
+ osm_debug("%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;
+ 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;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SYS_ENABLE << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+
+ /* How long of a timeout do we need? */
+ if ((rc = i2o_msg_post_wait(c, msg, 240)))
+ osm_err("%s: Could not enable (status=%#x).\n", c->name, -rc);
+ else
+ osm_debug("%s: Enabled.\n", c->name);
+
+ i2o_status_get(c); // entered OPERATIONAL state
+
+ return rc;
+};
+
+/**
+ * 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_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;
+ int rc;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ /* Quiesce all IOPs first */
+ i2o_iop_quiesce_all();
+
+ msg->u.head[0] = cpu_to_le32(FOUR_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_ADAPTER_CLEAR << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+
+ if ((rc = i2o_msg_post_wait(c, msg, 30)))
+ osm_info("%s: Unable to clear (status=%#x).\n", c->name, -rc);
+ else
+ osm_debug("%s: Cleared.\n", c->name);
+
+ /* Enable all IOPs */
+ i2o_iop_enable_all();
+
+ return rc;
+}
+
+/**
+ * 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 negative error code on failure.
+ */
+static int i2o_iop_init_outbound_queue(struct i2o_controller *c)
+{
+ u32 m;
+ volatile u8 *status = c->status.virt;
+ struct i2o_message *msg;
+ ulong timeout;
+ int i;
+
+ osm_debug("%s: Initializing Outbound Queue...\n", c->name);
+
+ memset(c->status.virt, 0, 4);
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_6);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_OUTBOUND_INIT << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
+ msg->u.s.tcntxt = cpu_to_le32(0x00000000);
+ msg->body[0] = cpu_to_le32(PAGE_SIZE);
+ /* Outbound msg frame size in words and Initcode */
+ msg->body[1] = cpu_to_le32(I2O_OUTBOUND_MSG_FRAME_SIZE << 16 | 0x80);
+ msg->body[2] = cpu_to_le32(0xd0000004);
+ msg->body[3] = cpu_to_le32(i2o_dma_low(c->status.phys));
+ msg->body[4] = cpu_to_le32(i2o_dma_high(c->status.phys));
+
+ i2o_msg_post(c, msg);
+
+ timeout = jiffies + I2O_TIMEOUT_INIT_OUTBOUND_QUEUE * HZ;
+ while (*status <= I2O_CMD_IN_PROGRESS) {
+ if (time_after(jiffies, timeout)) {
+ osm_warn("%s: Timeout Initializing\n", c->name);
+ return -ETIMEDOUT;
+ }
+ schedule_timeout_uninterruptible(1);
+ }
+
+ m = c->out_queue.phys;
+
+ /* Post frames */
+ for (i = 0; i < I2O_MAX_OUTBOUND_MSG_FRAMES; i++) {
+ i2o_flush_reply(c, m);
+ udelay(1); /* Promise */
+ m += I2O_OUTBOUND_MSG_FRAME_SIZE * sizeof(u32);
+ }
+
+ return 0;
+}
+
+/**
+ * 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)
+{
+ volatile u8 *status = c->status.virt;
+ struct i2o_message *msg;
+ unsigned long timeout;
+ i2o_status_block *sb = c->status_block.virt;
+ int rc = 0;
+
+ osm_debug("%s: Resetting controller\n", c->name);
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ memset(c->status_block.virt, 0, 8);
+
+ /* Quiesce all IOPs first */
+ i2o_iop_quiesce_all();
+
+ msg->u.head[0] = cpu_to_le32(EIGHT_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_ADAPTER_RESET << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
+ msg->u.s.tcntxt = cpu_to_le32(0x00000000);
+ msg->body[0] = cpu_to_le32(0x00000000);
+ msg->body[1] = cpu_to_le32(0x00000000);
+ msg->body[2] = cpu_to_le32(i2o_dma_low(c->status.phys));
+ msg->body[3] = cpu_to_le32(i2o_dma_high(c->status.phys));
+
+ i2o_msg_post(c, msg);
+
+ /* Wait for a reply */
+ timeout = jiffies + I2O_TIMEOUT_RESET * HZ;
+ while (!*status) {
+ if (time_after(jiffies, timeout))
+ break;
+
+ schedule_timeout_uninterruptible(1);
+ }
+
+ switch (*status) {
+ case I2O_CMD_REJECTED:
+ osm_warn("%s: IOP reset rejected\n", c->name);
+ rc = -EPERM;
+ break;
+
+ case 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 amount of time, we assume the
+ * IOP could not reboot properly.
+ */
+ osm_debug("%s: Reset in progress, waiting for reboot...\n",
+ c->name);
+
+ while (IS_ERR(msg = i2o_msg_get_wait(c, I2O_TIMEOUT_RESET))) {
+ if (time_after(jiffies, timeout)) {
+ osm_err("%s: IOP reset timeout.\n", c->name);
+ rc = PTR_ERR(msg);
+ goto exit;
+ }
+ schedule_timeout_uninterruptible(1);
+ }
+ i2o_msg_nop(c, msg);
+
+ /* from here all quiesce commands are safe */
+ c->no_quiesce = 0;
+
+ /* verify if controller is in state RESET */
+ i2o_status_get(c);
+
+ if (!c->promise && (sb->iop_state != ADAPTER_STATE_RESET))
+ osm_warn("%s: reset completed, but adapter not in RESET"
+ " state.\n", c->name);
+ else
+ osm_debug("%s: reset completed.\n", c->name);
+
+ break;
+
+ default:
+ osm_err("%s: IOP reset timeout.\n", c->name);
+ rc = -ETIMEDOUT;
+ break;
+ }
+
+ exit:
+ /* Enable all IOPs */
+ i2o_iop_enable_all();
+
+ 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;
+ int state;
+
+ /* In INIT state, Wait Inbound Q to initialize (in i2o_status_get) */
+ /* In READY state, Get status */
+
+ rc = i2o_status_get(c);
+ if (rc) {
+ osm_info("%s: Unable to obtain status, attempting a reset.\n",
+ c->name);
+ rc = i2o_iop_reset(c);
+ if (rc)
+ return rc;
+ }
+
+ if (sb->i2o_version > I2OVER15) {
+ osm_err("%s: Not running version 1.5 of the I2O Specification."
+ "\n", c->name);
+ return -ENODEV;
+ }
+
+ switch (sb->iop_state) {
+ case ADAPTER_STATE_FAULTED:
+ osm_err("%s: hardware fault\n", c->name);
+ return -EFAULT;
+
+ case ADAPTER_STATE_READY:
+ case ADAPTER_STATE_OPERATIONAL:
+ case ADAPTER_STATE_HOLD:
+ case ADAPTER_STATE_FAILED:
+ osm_debug("%s: already running, trying to reset...\n", c->name);
+ rc = i2o_iop_reset(c);
+ if (rc)
+ return rc;
+ }
+
+ /* preserve state */
+ state = sb->iop_state;
+
+ rc = i2o_iop_init_outbound_queue(c);
+ if (rc)
+ return rc;
+
+ /* if adapter was not in RESET state clear now */
+ if (state != ADAPTER_STATE_RESET)
+ i2o_iop_clear(c);
+
+ i2o_status_get(c);
+
+ if (sb->iop_state != ADAPTER_STATE_HOLD) {
+ osm_err("%s: failed to bring IOP into HOLD state\n", c->name);
+ return -EIO;
+ }
+
+ return i2o_hrt_get(c);
+};
+
+static void i2o_res_alloc(struct i2o_controller *c, unsigned long flags)
+{
+ i2o_status_block *sb = c->status_block.virt;
+ struct resource *res = &c->mem_resource;
+ resource_size_t size, align;
+ int err;
+
+ res->name = c->pdev->bus->name;
+ res->flags = flags;
+ res->start = 0;
+ res->end = 0;
+ osm_info("%s: requires private memory resources.\n", c->name);
+
+ if (flags & IORESOURCE_MEM) {
+ size = sb->desired_mem_size;
+ align = 1 << 20; /* unspecified, use 1Mb and play safe */
+ } else {
+ size = sb->desired_io_size;
+ align = 1 << 12; /* unspecified, use 4Kb and play safe */
+ }
+
+ err = pci_bus_alloc_resource(c->pdev->bus, res, size, align, 0, 0,
+ NULL, NULL);
+ if (err < 0)
+ return;
+
+ if (flags & IORESOURCE_MEM) {
+ c->mem_alloc = 1;
+ sb->current_mem_size = resource_size(res);
+ sb->current_mem_base = res->start;
+ } else if (flags & IORESOURCE_IO) {
+ c->io_alloc = 1;
+ sb->current_io_size = resource_size(res);
+ sb->current_io_base = res->start;
+ }
+ osm_info("%s: allocated PCI space %pR\n", c->name, res);
+}
+
+/**
+ * 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;
+ i2o_status_block *sb = c->status_block.virt;
+ struct device *dev = &c->pdev->dev;
+ int rc;
+
+ if (sb->current_mem_size < sb->desired_mem_size)
+ i2o_res_alloc(c, IORESOURCE_MEM);
+
+ if (sb->current_io_size < sb->desired_io_size)
+ i2o_res_alloc(c, IORESOURCE_IO);
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ i2o_systab.phys = dma_map_single(dev, i2o_systab.virt, i2o_systab.len,
+ PCI_DMA_TODEVICE);
+ if (!i2o_systab.phys) {
+ i2o_msg_nop(c, msg);
+ return -ENOMEM;
+ }
+
+ msg->u.head[0] = cpu_to_le32(I2O_MESSAGE_SIZE(12) | SGL_OFFSET_6);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_SYS_TAB_SET << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+
+ /*
+ * Provide three SGL-elements:
+ * System table (SysTab), Private memory space declaration and
+ * Private i/o space declaration
+ */
+
+ msg->body[0] = cpu_to_le32(c->unit + 2);
+ msg->body[1] = cpu_to_le32(0x00000000);
+ msg->body[2] = cpu_to_le32(0x54000000 | i2o_systab.len);
+ msg->body[3] = cpu_to_le32(i2o_systab.phys);
+ msg->body[4] = cpu_to_le32(0x54000000 | sb->current_mem_size);
+ msg->body[5] = cpu_to_le32(sb->current_mem_base);
+ msg->body[6] = cpu_to_le32(0xd4000000 | sb->current_io_size);
+ msg->body[6] = cpu_to_le32(sb->current_io_base);
+
+ rc = i2o_msg_post_wait(c, msg, 120);
+
+ dma_unmap_single(dev, i2o_systab.phys, i2o_systab.len,
+ PCI_DMA_TODEVICE);
+
+ if (rc < 0)
+ osm_err("%s: Unable to set SysTab (status=%#x).\n", c->name,
+ -rc);
+ else
+ osm_debug("%s: SysTab set.\n", c->name);
+
+ return rc;
+}
+
+/**
+ * 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 negative 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 */
+ osm_debug("%s: Attempting to enable...\n", c->name);
+ rc = i2o_iop_enable(c);
+ if (rc)
+ return rc;
+
+ 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;
+
+ osm_debug("%s: deleting controller\n", c->name);
+
+ i2o_driver_notify_controller_remove_all(c);
+
+ list_del(&c->list);
+
+ list_for_each_entry_safe(dev, tmp, &c->devices, list)
+ i2o_device_remove(dev);
+
+ device_del(&c->device);
+
+ /* Ask the IOP to switch to RESET state */
+ i2o_iop_reset(c);
+}
+
+/**
+ * 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 = kzalloc(i2o_systab.len, GFP_KERNEL);
+ if (!systab) {
+ osm_err("unable to allocate memory for System Table\n");
+ return -ENOMEM;
+ }
+
+ 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) {
+ osm_err("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))) {
+ osm_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_dma_low(c->base.phys + I2O_IN_PORT);
+ systab->iops[count].inbound_high =
+ i2o_dma_high(c->base.phys + I2O_IN_PORT);
+
+ count++;
+ }
+
+ systab->num_entries = count;
+
+ return 0;
+};
+
+/**
+ * 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 success or negative error code on failure.
+ */
+int i2o_status_get(struct i2o_controller *c)
+{
+ struct i2o_message *msg;
+ volatile u8 *status_block;
+ unsigned long timeout;
+
+ status_block = (u8 *) c->status_block.virt;
+ memset(c->status_block.virt, 0, sizeof(i2o_status_block));
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(NINE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_STATUS_GET << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->u.s.icntxt = cpu_to_le32(i2o_exec_driver.context);
+ msg->u.s.tcntxt = cpu_to_le32(0x00000000);
+ msg->body[0] = cpu_to_le32(0x00000000);
+ msg->body[1] = cpu_to_le32(0x00000000);
+ msg->body[2] = cpu_to_le32(i2o_dma_low(c->status_block.phys));
+ msg->body[3] = cpu_to_le32(i2o_dma_high(c->status_block.phys));
+ msg->body[4] = cpu_to_le32(sizeof(i2o_status_block)); /* always 88 bytes */
+
+ i2o_msg_post(c, msg);
+
+ /* Wait for a reply */
+ timeout = jiffies + I2O_TIMEOUT_STATUS_GET * HZ;
+ while (status_block[87] != 0xFF) {
+ if (time_after(jiffies, timeout)) {
+ osm_err("%s: Get status timeout.\n", c->name);
+ return -ETIMEDOUT;
+ }
+
+ schedule_timeout_uninterruptible(1);
+ }
+
+#ifdef 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 negative error code on failure.
+ */
+static 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;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(SIX_WORD_MSG_SIZE | SGL_OFFSET_4);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_HRT_GET << 24 | HOST_TID << 12 |
+ ADAPTER_TID);
+ msg->body[0] = cpu_to_le32(0xd0000000 | c->hrt.len);
+ msg->body[1] = cpu_to_le32(c->hrt.phys);
+
+ rc = i2o_msg_post_wait_mem(c, msg, 20, &c->hrt);
+
+ if (rc < 0) {
+ osm_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))
+ return -ENOMEM;
+ else
+ hrt = c->hrt.virt;
+ } else
+ return i2o_parse_hrt(c);
+ }
+
+ osm_err("%s: Unable to get HRT after %d tries, giving up\n", c->name,
+ I2O_HRT_GET_TRIES);
+
+ return -EBUSY;
+}
+
+/**
+ * i2o_iop_release - release the memory for a I2O controller
+ * @dev: I2O controller which should be released
+ *
+ * Release the allocated memory. This function is called if refcount of
+ * device reaches 0 automatically.
+ */
+static void i2o_iop_release(struct device *dev)
+{
+ struct i2o_controller *c = to_i2o_controller(dev);
+
+ i2o_iop_free(c);
+};
+
+/**
+ * i2o_iop_alloc - Allocate and initialize a i2o_controller struct
+ *
+ * Allocate the necessary memory for a i2o_controller struct and
+ * initialize the lists and message mempool.
+ *
+ * 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;
+ char poolname[32];
+
+ c = kzalloc(sizeof(*c), GFP_KERNEL);
+ if (!c) {
+ osm_err("i2o: Insufficient memory to allocate a I2O controller."
+ "\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ c->unit = unit++;
+ sprintf(c->name, "iop%d", c->unit);
+
+ snprintf(poolname, sizeof(poolname), "i2o_%s_msg_inpool", c->name);
+ if (i2o_pool_alloc
+ (&c->in_msg, poolname, I2O_INBOUND_MSG_FRAME_SIZE * 4 + sizeof(u32),
+ I2O_MSG_INPOOL_MIN)) {
+ kfree(c);
+ return ERR_PTR(-ENOMEM);
+ };
+
+ INIT_LIST_HEAD(&c->devices);
+ spin_lock_init(&c->lock);
+ mutex_init(&c->lct_lock);
+
+ device_initialize(&c->device);
+
+ c->device.release = &i2o_iop_release;
+
+ dev_set_name(&c->device, "iop%d", c->unit);
+
+#if BITS_PER_LONG == 64
+ spin_lock_init(&c->context_list_lock);
+ atomic_set(&c->context_list_counter, 0);
+ INIT_LIST_HEAD(&c->context_list);
+#endif
+
+ return 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;
+
+ if ((rc = device_add(&c->device))) {
+ osm_err("%s: could not add controller\n", c->name);
+ goto iop_reset;
+ }
+
+ osm_info("%s: Activating I2O controller...\n", c->name);
+ osm_info("%s: This may take a few minutes if there are many devices\n",
+ c->name);
+
+ if ((rc = i2o_iop_activate(c))) {
+ osm_err("%s: could not activate controller\n", c->name);
+ goto device_del;
+ }
+
+ osm_debug("%s: building sys table...\n", c->name);
+
+ if ((rc = i2o_systab_build()))
+ goto device_del;
+
+ osm_debug("%s: online controller...\n", c->name);
+
+ if ((rc = i2o_iop_online(c)))
+ goto device_del;
+
+ osm_debug("%s: getting LCT...\n", c->name);
+
+ if ((rc = i2o_exec_lct_get(c)))
+ goto device_del;
+
+ list_add(&c->list, &i2o_controllers);
+
+ i2o_driver_notify_controller_add_all(c);
+
+ osm_info("%s: Controller added\n", c->name);
+
+ return 0;
+
+ device_del:
+ device_del(&c->device);
+
+ iop_reset:
+ i2o_iop_reset(c);
+
+ return rc;
+};
+
+/**
+ * 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 negative error code on failure.
+ */
+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;
+
+ msg = i2o_msg_get_wait(c, I2O_TIMEOUT_MESSAGE_GET);
+ if (IS_ERR(msg))
+ return PTR_ERR(msg);
+
+ msg->u.head[0] = cpu_to_le32(FIVE_WORD_MSG_SIZE | SGL_OFFSET_0);
+ msg->u.head[1] =
+ cpu_to_le32(I2O_CMD_UTIL_EVT_REGISTER << 24 | HOST_TID << 12 | dev->
+ lct_data.tid);
+ msg->u.s.icntxt = cpu_to_le32(drv->context);
+ msg->u.s.tcntxt = cpu_to_le32(tcntxt);
+ msg->body[0] = cpu_to_le32(evt_mask);
+
+ i2o_msg_post(c, msg);
+
+ 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 OSM_DESCRIPTION " v" OSM_VERSION "\n");
+
+ if ((rc = i2o_driver_init()))
+ goto exit;
+
+ if ((rc = i2o_exec_init()))
+ goto driver_exit;
+
+ if ((rc = i2o_pci_init()))
+ goto exec_exit;
+
+ return 0;
+
+ exec_exit:
+ i2o_exec_exit();
+
+ driver_exit:
+ i2o_driver_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();
+};
+
+module_init(i2o_iop_init);
+module_exit(i2o_iop_exit);
+
+MODULE_AUTHOR("Red Hat Software");
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION(OSM_DESCRIPTION);
+MODULE_VERSION(OSM_VERSION);
+
+#if BITS_PER_LONG == 64
+EXPORT_SYMBOL(i2o_cntxt_list_add);
+EXPORT_SYMBOL(i2o_cntxt_list_get);
+EXPORT_SYMBOL(i2o_cntxt_list_remove);
+EXPORT_SYMBOL(i2o_cntxt_list_get_ptr);
+#endif
+EXPORT_SYMBOL(i2o_msg_get_wait);
+EXPORT_SYMBOL(i2o_find_iop);
+EXPORT_SYMBOL(i2o_iop_find_device);
+EXPORT_SYMBOL(i2o_event_register);
+EXPORT_SYMBOL(i2o_status_get);
+EXPORT_SYMBOL(i2o_controllers);
--- /dev/null
+/*
+ * Functions to handle I2O memory
+ *
+ * Pulled from the inlines in i2o headers and uninlined
+ *
+ *
+ * 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 "i2o.h"
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include "core.h"
+
+/* Protects our 32/64bit mask switching */
+static DEFINE_MUTEX(mem_lock);
+
+/**
+ * i2o_sg_tablesize - Calculate the maximum number of elements in a SGL
+ * @c: I2O controller for which the calculation should be done
+ * @body_size: maximum body size used for message in 32-bit words.
+ *
+ * Return the maximum number of SG elements in a SG list.
+ */
+u16 i2o_sg_tablesize(struct i2o_controller *c, u16 body_size)
+{
+ i2o_status_block *sb = c->status_block.virt;
+ u16 sg_count =
+ (sb->inbound_frame_size - sizeof(struct i2o_message) / 4) -
+ body_size;
+
+ if (c->pae_support) {
+ /*
+ * for 64-bit a SG attribute element must be added and each
+ * SG element needs 12 bytes instead of 8.
+ */
+ sg_count -= 2;
+ sg_count /= 3;
+ } else
+ sg_count /= 2;
+
+ if (c->short_req && (sg_count > 8))
+ sg_count = 8;
+
+ return sg_count;
+}
+EXPORT_SYMBOL_GPL(i2o_sg_tablesize);
+
+
+/**
+ * i2o_dma_map_single - Map pointer to controller and fill in I2O message.
+ * @c: I2O controller
+ * @ptr: pointer to the data which should be mapped
+ * @size: size of data in bytes
+ * @direction: DMA_TO_DEVICE / DMA_FROM_DEVICE
+ * @sg_ptr: pointer to the SG list inside the I2O message
+ *
+ * This function does all necessary DMA handling and also writes the I2O
+ * SGL elements into the I2O message. For details on DMA handling see also
+ * dma_map_single(). The pointer sg_ptr will only be set to the end of the
+ * SG list if the allocation was successful.
+ *
+ * Returns DMA address which must be checked for failures using
+ * dma_mapping_error().
+ */
+dma_addr_t i2o_dma_map_single(struct i2o_controller *c, void *ptr,
+ size_t size,
+ enum dma_data_direction direction,
+ u32 ** sg_ptr)
+{
+ u32 sg_flags;
+ u32 *mptr = *sg_ptr;
+ dma_addr_t dma_addr;
+
+ switch (direction) {
+ case DMA_TO_DEVICE:
+ sg_flags = 0xd4000000;
+ break;
+ case DMA_FROM_DEVICE:
+ sg_flags = 0xd0000000;
+ break;
+ default:
+ return 0;
+ }
+
+ dma_addr = dma_map_single(&c->pdev->dev, ptr, size, direction);
+ if (!dma_mapping_error(&c->pdev->dev, dma_addr)) {
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+ if ((sizeof(dma_addr_t) > 4) && c->pae_support) {
+ *mptr++ = cpu_to_le32(0x7C020002);
+ *mptr++ = cpu_to_le32(PAGE_SIZE);
+ }
+#endif
+
+ *mptr++ = cpu_to_le32(sg_flags | size);
+ *mptr++ = cpu_to_le32(i2o_dma_low(dma_addr));
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+ if ((sizeof(dma_addr_t) > 4) && c->pae_support)
+ *mptr++ = cpu_to_le32(i2o_dma_high(dma_addr));
+#endif
+ *sg_ptr = mptr;
+ }
+ return dma_addr;
+}
+EXPORT_SYMBOL_GPL(i2o_dma_map_single);
+
+/**
+ * i2o_dma_map_sg - Map a SG List to controller and fill in I2O message.
+ * @c: I2O controller
+ * @sg: SG list to be mapped
+ * @sg_count: number of elements in the SG list
+ * @direction: DMA_TO_DEVICE / DMA_FROM_DEVICE
+ * @sg_ptr: pointer to the SG list inside the I2O message
+ *
+ * This function does all necessary DMA handling and also writes the I2O
+ * SGL elements into the I2O message. For details on DMA handling see also
+ * dma_map_sg(). The pointer sg_ptr will only be set to the end of the SG
+ * list if the allocation was successful.
+ *
+ * Returns 0 on failure or 1 on success.
+ */
+int i2o_dma_map_sg(struct i2o_controller *c, struct scatterlist *sg,
+ int sg_count, enum dma_data_direction direction, u32 ** sg_ptr)
+{
+ u32 sg_flags;
+ u32 *mptr = *sg_ptr;
+
+ switch (direction) {
+ case DMA_TO_DEVICE:
+ sg_flags = 0x14000000;
+ break;
+ case DMA_FROM_DEVICE:
+ sg_flags = 0x10000000;
+ break;
+ default:
+ return 0;
+ }
+
+ sg_count = dma_map_sg(&c->pdev->dev, sg, sg_count, direction);
+ if (!sg_count)
+ return 0;
+
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+ if ((sizeof(dma_addr_t) > 4) && c->pae_support) {
+ *mptr++ = cpu_to_le32(0x7C020002);
+ *mptr++ = cpu_to_le32(PAGE_SIZE);
+ }
+#endif
+
+ while (sg_count-- > 0) {
+ if (!sg_count)
+ sg_flags |= 0xC0000000;
+ *mptr++ = cpu_to_le32(sg_flags | sg_dma_len(sg));
+ *mptr++ = cpu_to_le32(i2o_dma_low(sg_dma_address(sg)));
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+ if ((sizeof(dma_addr_t) > 4) && c->pae_support)
+ *mptr++ = cpu_to_le32(i2o_dma_high(sg_dma_address(sg)));
+#endif
+ sg = sg_next(sg);
+ }
+ *sg_ptr = mptr;
+
+ return 1;
+}
+EXPORT_SYMBOL_GPL(i2o_dma_map_sg);
+
+/**
+ * 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
+ *
+ * Allocate a coherent DMA memory and write the pointers into addr.
+ *
+ * Returns 0 on success or -ENOMEM on failure.
+ */
+int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr, size_t len)
+{
+ struct pci_dev *pdev = to_pci_dev(dev);
+ int dma_64 = 0;
+
+ mutex_lock(&mem_lock);
+ if ((sizeof(dma_addr_t) > 4) && (pdev->dma_mask == DMA_BIT_MASK(64))) {
+ dma_64 = 1;
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
+ mutex_unlock(&mem_lock);
+ return -ENOMEM;
+ }
+ }
+
+ addr->virt = dma_alloc_coherent(dev, len, &addr->phys, GFP_KERNEL);
+
+ if ((sizeof(dma_addr_t) > 4) && dma_64)
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
+ printk(KERN_WARNING "i2o: unable to set 64-bit DMA");
+ mutex_unlock(&mem_lock);
+
+ if (!addr->virt)
+ return -ENOMEM;
+
+ memset(addr->virt, 0, len);
+ addr->len = len;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(i2o_dma_alloc);
+
+
+/**
+ * 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.
+ */
+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;
+ }
+}
+EXPORT_SYMBOL_GPL(i2o_dma_free);
+
+
+/**
+ * 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
+ *
+ * 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)
+{
+ i2o_dma_free(dev, addr);
+
+ if (len)
+ return i2o_dma_alloc(dev, addr, len);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(i2o_dma_realloc);
+
+/*
+ * i2o_pool_alloc - Allocate an slab cache and mempool
+ * @mempool: pointer to struct i2o_pool to write data into.
+ * @name: name which is used to identify cache
+ * @size: size of each object
+ * @min_nr: minimum number of objects
+ *
+ * First allocates a slab cache with name and size. Then allocates a
+ * mempool which uses the slab cache for allocation and freeing.
+ *
+ * Returns 0 on success or negative error code on failure.
+ */
+int i2o_pool_alloc(struct i2o_pool *pool, const char *name,
+ size_t size, int min_nr)
+{
+ pool->name = kmalloc(strlen(name) + 1, GFP_KERNEL);
+ if (!pool->name)
+ goto exit;
+ strcpy(pool->name, name);
+
+ pool->slab =
+ kmem_cache_create(pool->name, size, 0, SLAB_HWCACHE_ALIGN, NULL);
+ if (!pool->slab)
+ goto free_name;
+
+ pool->mempool = mempool_create_slab_pool(min_nr, pool->slab);
+ if (!pool->mempool)
+ goto free_slab;
+
+ return 0;
+
+free_slab:
+ kmem_cache_destroy(pool->slab);
+
+free_name:
+ kfree(pool->name);
+
+exit:
+ return -ENOMEM;
+}
+EXPORT_SYMBOL_GPL(i2o_pool_alloc);
+
+/*
+ * i2o_pool_free - Free slab cache and mempool again
+ * @mempool: pointer to struct i2o_pool which should be freed
+ *
+ * Note that you have to return all objects to the mempool again before
+ * calling i2o_pool_free().
+ */
+void i2o_pool_free(struct i2o_pool *pool)
+{
+ mempool_destroy(pool->mempool);
+ kmem_cache_destroy(pool->slab);
+ kfree(pool->name);
+};
+EXPORT_SYMBOL_GPL(i2o_pool_free);
--- /dev/null
+/*
+ * 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 Sievänen <Juha.Sievanen@cs.Helsinki.FI>
+ * Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
+ * Deepak Saxena <deepak@plexity.net>
+ * Boji T Kannanthanam <boji.t.kannanthanam@intel.com>
+ * Alan Cox <alan@lxorguk.ukuu.org.uk>:
+ * 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>
+#include <linux/slab.h>
+#include "i2o.h"
+#include <linux/module.h>
+#include "core.h"
+
+#define OSM_DESCRIPTION "I2O-subsystem"
+
+/* PCI device id table for all I2O controllers */
+static struct pci_device_id i2o_pci_ids[] = {
+ {PCI_DEVICE_CLASS(PCI_CLASS_INTELLIGENT_I2O << 8, 0xffff00)},
+ {PCI_DEVICE(PCI_VENDOR_ID_DPT, 0xa511)},
+ {.vendor = PCI_VENDOR_ID_INTEL,.device = 0x1962,
+ .subvendor = PCI_VENDOR_ID_PROMISE,.subdevice = PCI_ANY_ID},
+ {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 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);
+ kfree(c->lct);
+ i2o_dma_free(dev, &c->dlct);
+ i2o_dma_free(dev, &c->hrt);
+ i2o_dma_free(dev, &c->status);
+
+ if (c->raptor && c->in_queue.virt)
+ iounmap(c->in_queue.virt);
+
+ if (c->base.virt)
+ iounmap(c->base.virt);
+
+ pci_release_regions(c->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 i2o_pci_alloc(struct i2o_controller *c)
+{
+ struct pci_dev *pdev = c->pdev;
+ struct device *dev = &pdev->dev;
+ int i;
+
+ if (pci_request_regions(pdev, OSM_DESCRIPTION)) {
+ printk(KERN_ERR "%s: device already claimed\n", c->name);
+ return -ENODEV;
+ }
+
+ 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 we know what card it is, set the size
+ * correctly. Code is taken from dpt_i2o.c
+ */
+ if (pdev->device == 0xa501) {
+ if (pdev->subsystem_device >= 0xc032 &&
+ pdev->subsystem_device <= 0xc03b) {
+ if (c->base.len > 0x400000)
+ c->base.len = 0x400000;
+ } else {
+ if (c->base.len > 0x100000)
+ c->base.len = 0x100000;
+ }
+ }
+ 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 "%s: I2O controller has no memory regions"
+ " defined.\n", c->name);
+ i2o_pci_free(c);
+ return -EINVAL;
+ }
+
+ /* Map the I2O controller */
+ if (c->raptor) {
+ printk(KERN_INFO "%s: PCI I2O controller\n", c->name);
+ 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 "%s: PCI I2O controller at %08lX size=%ld\n",
+ c->name, (unsigned long)c->base.phys,
+ (unsigned long)c->base.len);
+
+ c->base.virt = ioremap_nocache(c->base.phys, c->base.len);
+ if (!c->base.virt) {
+ printk(KERN_ERR "%s: Unable to map controller.\n", c->name);
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if (c->raptor) {
+ c->in_queue.virt =
+ ioremap_nocache(c->in_queue.phys, c->in_queue.len);
+ if (!c->in_queue.virt) {
+ printk(KERN_ERR "%s: Unable to map controller.\n",
+ c->name);
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+ } else
+ c->in_queue = c->base;
+
+ c->irq_status = c->base.virt + I2O_IRQ_STATUS;
+ c->irq_mask = c->base.virt + I2O_IRQ_MASK;
+ c->in_port = c->base.virt + I2O_IN_PORT;
+ c->out_port = c->base.virt + I2O_OUT_PORT;
+
+ /* Motorola/Freescale chip does not follow spec */
+ if (pdev->vendor == PCI_VENDOR_ID_MOTOROLA && pdev->device == 0x18c0) {
+ /* Check if CPU is enabled */
+ if (be32_to_cpu(readl(c->base.virt + 0x10000)) & 0x10000000) {
+ printk(KERN_INFO "%s: MPC82XX needs CPU running to "
+ "service I2O.\n", c->name);
+ i2o_pci_free(c);
+ return -ENODEV;
+ } else {
+ c->irq_status += I2O_MOTOROLA_PORT_OFFSET;
+ c->irq_mask += I2O_MOTOROLA_PORT_OFFSET;
+ c->in_port += I2O_MOTOROLA_PORT_OFFSET;
+ c->out_port += I2O_MOTOROLA_PORT_OFFSET;
+ printk(KERN_INFO "%s: MPC82XX workarounds activated.\n",
+ c->name);
+ }
+ }
+
+ if (i2o_dma_alloc(dev, &c->status, 8)) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if (i2o_dma_alloc(dev, &c->hrt, sizeof(i2o_hrt))) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if (i2o_dma_alloc(dev, &c->dlct, 8192)) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if (i2o_dma_alloc(dev, &c->status_block, sizeof(i2o_status_block))) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ if (i2o_dma_alloc(dev, &c->out_queue,
+ I2O_MAX_OUTBOUND_MSG_FRAMES * I2O_OUTBOUND_MSG_FRAME_SIZE *
+ sizeof(u32))) {
+ i2o_pci_free(c);
+ return -ENOMEM;
+ }
+
+ pci_set_drvdata(pdev, c);
+
+ return 0;
+}
+
+/**
+ * i2o_pci_interrupt - Interrupt handler for I2O controller
+ * @irq: interrupt line
+ * @dev_id: pointer to the I2O controller
+ *
+ * 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 i2o_controller *c = dev_id;
+ u32 m;
+ irqreturn_t rc = IRQ_NONE;
+
+ while (readl(c->irq_status) & I2O_IRQ_OUTBOUND_POST) {
+ m = readl(c->out_port);
+ if (m == I2O_QUEUE_EMPTY) {
+ /*
+ * Old 960 steppings had a bug in the I2O unit that
+ * caused the queue to appear empty when it wasn't.
+ */
+ m = readl(c->out_port);
+ if (unlikely(m == I2O_QUEUE_EMPTY))
+ break;
+ }
+
+ /* dispatch it */
+ if (i2o_driver_dispatch(c, m))
+ /* flush it if result != 0 */
+ i2o_flush_reply(c, m);
+
+ rc = IRQ_HANDLED;
+ }
+
+ return rc;
+}
+
+/**
+ * i2o_pci_irq_enable - Allocate interrupt for I2O controller
+ * @c: i2o_controller that the request is for
+ *
+ * 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;
+
+ writel(0xffffffff, c->irq_mask);
+
+ if (pdev->irq) {
+ rc = request_irq(pdev->irq, i2o_pci_interrupt, IRQF_SHARED,
+ c->name, c);
+ if (rc < 0) {
+ printk(KERN_ERR "%s: unable to allocate interrupt %d."
+ "\n", c->name, pdev->irq);
+ return rc;
+ }
+ }
+
+ writel(0x00000000, c->irq_mask);
+
+ 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)
+{
+ writel(0xffffffff, c->irq_mask);
+
+ if (c->pdev->irq > 0)
+ free_irq(c->pdev->irq, c);
+}
+
+/**
+ * i2o_pci_probe - Probe the PCI device for an I2O controller
+ * @pdev: 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 i2o_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct i2o_controller *c;
+ int rc;
+ struct pci_dev *i960 = NULL;
+
+ printk(KERN_INFO "i2o: Checking for PCI I2O controllers...\n");
+
+ if ((pdev->class & 0xff) > 1) {
+ printk(KERN_WARNING "i2o: %s does not support I2O 1.5 "
+ "(skipping).\n", pci_name(pdev));
+ return -ENODEV;
+ }
+
+ if ((rc = pci_enable_device(pdev))) {
+ printk(KERN_WARNING "i2o: couldn't enable device %s\n",
+ pci_name(pdev));
+ return rc;
+ }
+
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
+ printk(KERN_WARNING "i2o: no suitable DMA found for %s\n",
+ pci_name(pdev));
+ rc = -ENODEV;
+ goto disable;
+ }
+
+ pci_set_master(pdev);
+
+ c = i2o_iop_alloc();
+ if (IS_ERR(c)) {
+ printk(KERN_ERR "i2o: couldn't allocate memory for %s\n",
+ pci_name(pdev));
+ rc = PTR_ERR(c);
+ goto disable;
+ } else
+ printk(KERN_INFO "%s: controller found (%s)\n", c->name,
+ pci_name(pdev));
+
+ c->pdev = pdev;
+ c->device.parent = &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 "%s: Symbios FC920 workarounds activated.\n",
+ c->name);
+ }
+
+ if (pdev->subsystem_vendor == PCI_VENDOR_ID_PROMISE) {
+ /*
+ * Expose the ship behind i960 for initialization, or it will
+ * failed
+ */
+ i960 = pci_get_slot(c->pdev->bus,
+ PCI_DEVFN(PCI_SLOT(c->pdev->devfn), 0));
+
+ if (i960) {
+ pci_write_config_word(i960, 0x42, 0);
+ pci_dev_put(i960);
+ }
+
+ c->promise = 1;
+ c->limit_sectors = 1;
+ }
+
+ if (pdev->subsystem_vendor == PCI_VENDOR_ID_DPT)
+ c->adaptec = 1;
+
+ /* 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 (pdev->subsystem_device == 0xc05a) {
+ c->limit_sectors = 1;
+ printk(KERN_INFO
+ "%s: limit sectors per request to %d\n", c->name,
+ I2O_MAX_SECTORS_LIMITED);
+ }
+#ifdef CONFIG_I2O_EXT_ADAPTEC_DMA64
+ if (sizeof(dma_addr_t) > 4) {
+ if (pci_set_dma_mask(pdev, DMA_BIT_MASK(64)))
+ printk(KERN_INFO "%s: 64-bit DMA unavailable\n",
+ c->name);
+ else {
+ c->pae_support = 1;
+ printk(KERN_INFO "%s: using 64-bit DMA\n",
+ c->name);
+ }
+ }
+#endif
+ }
+
+ if ((rc = i2o_pci_alloc(c))) {
+ printk(KERN_ERR "%s: DMA / IO allocation for I2O controller "
+ "failed\n", c->name);
+ goto free_controller;
+ }
+
+ if (i2o_pci_irq_enable(c)) {
+ printk(KERN_ERR "%s: unable to enable interrupts for I2O "
+ "controller\n", c->name);
+ goto free_pci;
+ }
+
+ if ((rc = i2o_iop_add(c)))
+ goto uninstall;
+
+ if (i960)
+ pci_write_config_word(i960, 0x42, 0x03ff);
+
+ 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 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);
+
+ pci_disable_device(pdev);
+
+ printk(KERN_INFO "%s: Controller removed.\n", c->name);
+
+ put_device(&c->device);
+};
+
+/* PCI driver for I2O controller */
+static struct pci_driver i2o_pci_driver = {
+ .name = "PCI_I2O",
+ .id_table = i2o_pci_ids,
+ .probe = i2o_pci_probe,
+ .remove = i2o_pci_remove,
+};
+
+/**
+ * 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);
+};
+
+MODULE_DEVICE_TABLE(pci, i2o_pci_ids);
+++ /dev/null
-/*
- * I2O kernel space accessible structures/APIs
- *
- * (c) Copyright 1999, 2000 Red Hat Software
- *
- * 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 header file defined the I2O APIs/structures for use by
- * the I2O kernel modules.
- *
- */
-
-#ifndef _I2O_H
-#define _I2O_H
-
-#include <linux/i2o-dev.h>
-
-/* How many different OSM's are we allowing */
-#define I2O_MAX_DRIVERS 8
-
-#include <linux/pci.h>
-#include <linux/bug.h>
-#include <linux/dma-mapping.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/workqueue.h> /* work_struct */
-#include <linux/mempool.h>
-#include <linux/mutex.h>
-#include <linux/scatterlist.h>
-#include <linux/semaphore.h> /* Needed for MUTEX init macros */
-
-#include <asm/io.h>
-
-/* message queue empty */
-#define I2O_QUEUE_EMPTY 0xffffffff
-
-/*
- * Cache strategies
- */
-
-/* The NULL strategy leaves everything up to the controller. This tends to be a
- * pessimal but functional choice.
- */
-#define CACHE_NULL 0
-/* Prefetch data when reading. We continually attempt to load the next 32 sectors
- * into the controller cache.
- */
-#define CACHE_PREFETCH 1
-/* Prefetch data when reading. We sometimes attempt to load the next 32 sectors
- * into the controller cache. When an I/O is less <= 8K we assume its probably
- * not sequential and don't prefetch (default)
- */
-#define CACHE_SMARTFETCH 2
-/* Data is written to the cache and then out on to the disk. The I/O must be
- * physically on the medium before the write is acknowledged (default without
- * NVRAM)
- */
-#define CACHE_WRITETHROUGH 17
-/* Data is written to the cache and then out on to the disk. The controller
- * is permitted to write back the cache any way it wants. (default if battery
- * backed NVRAM is present). It can be useful to set this for swap regardless of
- * battery state.
- */
-#define CACHE_WRITEBACK 18
-/* Optimise for under powered controllers, especially on RAID1 and RAID0. We
- * write large I/O's directly to disk bypassing the cache to avoid the extra
- * memory copy hits. Small writes are writeback cached
- */
-#define CACHE_SMARTBACK 19
-/* Optimise for under powered controllers, especially on RAID1 and RAID0. We
- * write large I/O's directly to disk bypassing the cache to avoid the extra
- * memory copy hits. Small writes are writethrough cached. Suitable for devices
- * lacking battery backup
- */
-#define CACHE_SMARTTHROUGH 20
-
-/*
- * Ioctl structures
- */
-
-#define BLKI2OGRSTRAT _IOR('2', 1, int)
-#define BLKI2OGWSTRAT _IOR('2', 2, int)
-#define BLKI2OSRSTRAT _IOW('2', 3, int)
-#define BLKI2OSWSTRAT _IOW('2', 4, int)
-
-/*
- * I2O Function codes
- */
-
-/*
- * Executive Class
- */
-#define I2O_CMD_ADAPTER_ASSIGN 0xB3
-#define I2O_CMD_ADAPTER_READ 0xB2
-#define I2O_CMD_ADAPTER_RELEASE 0xB5
-#define I2O_CMD_BIOS_INFO_SET 0xA5
-#define I2O_CMD_BOOT_DEVICE_SET 0xA7
-#define I2O_CMD_CONFIG_VALIDATE 0xBB
-#define I2O_CMD_CONN_SETUP 0xCA
-#define I2O_CMD_DDM_DESTROY 0xB1
-#define I2O_CMD_DDM_ENABLE 0xD5
-#define I2O_CMD_DDM_QUIESCE 0xC7
-#define I2O_CMD_DDM_RESET 0xD9
-#define I2O_CMD_DDM_SUSPEND 0xAF
-#define I2O_CMD_DEVICE_ASSIGN 0xB7
-#define I2O_CMD_DEVICE_RELEASE 0xB9
-#define I2O_CMD_HRT_GET 0xA8
-#define I2O_CMD_ADAPTER_CLEAR 0xBE
-#define I2O_CMD_ADAPTER_CONNECT 0xC9
-#define I2O_CMD_ADAPTER_RESET 0xBD
-#define I2O_CMD_LCT_NOTIFY 0xA2
-#define I2O_CMD_OUTBOUND_INIT 0xA1
-#define I2O_CMD_PATH_ENABLE 0xD3
-#define I2O_CMD_PATH_QUIESCE 0xC5
-#define I2O_CMD_PATH_RESET 0xD7
-#define I2O_CMD_STATIC_MF_CREATE 0xDD
-#define I2O_CMD_STATIC_MF_RELEASE 0xDF
-#define I2O_CMD_STATUS_GET 0xA0
-#define I2O_CMD_SW_DOWNLOAD 0xA9
-#define I2O_CMD_SW_UPLOAD 0xAB
-#define I2O_CMD_SW_REMOVE 0xAD
-#define I2O_CMD_SYS_ENABLE 0xD1
-#define I2O_CMD_SYS_MODIFY 0xC1
-#define I2O_CMD_SYS_QUIESCE 0xC3
-#define I2O_CMD_SYS_TAB_SET 0xA3
-
-/*
- * Utility Class
- */
-#define I2O_CMD_UTIL_NOP 0x00
-#define I2O_CMD_UTIL_ABORT 0x01
-#define I2O_CMD_UTIL_CLAIM 0x09
-#define I2O_CMD_UTIL_RELEASE 0x0B
-#define I2O_CMD_UTIL_PARAMS_GET 0x06
-#define I2O_CMD_UTIL_PARAMS_SET 0x05
-#define I2O_CMD_UTIL_EVT_REGISTER 0x13
-#define I2O_CMD_UTIL_EVT_ACK 0x14
-#define I2O_CMD_UTIL_CONFIG_DIALOG 0x10
-#define I2O_CMD_UTIL_DEVICE_RESERVE 0x0D
-#define I2O_CMD_UTIL_DEVICE_RELEASE 0x0F
-#define I2O_CMD_UTIL_LOCK 0x17
-#define I2O_CMD_UTIL_LOCK_RELEASE 0x19
-#define I2O_CMD_UTIL_REPLY_FAULT_NOTIFY 0x15
-
-/*
- * SCSI Host Bus Adapter Class
- */
-#define I2O_CMD_SCSI_EXEC 0x81
-#define I2O_CMD_SCSI_ABORT 0x83
-#define I2O_CMD_SCSI_BUSRESET 0x27
-
-/*
- * Bus Adapter Class
- */
-#define I2O_CMD_BUS_ADAPTER_RESET 0x85
-#define I2O_CMD_BUS_RESET 0x87
-#define I2O_CMD_BUS_SCAN 0x89
-#define I2O_CMD_BUS_QUIESCE 0x8b
-
-/*
- * Random Block Storage Class
- */
-#define I2O_CMD_BLOCK_READ 0x30
-#define I2O_CMD_BLOCK_WRITE 0x31
-#define I2O_CMD_BLOCK_CFLUSH 0x37
-#define I2O_CMD_BLOCK_MLOCK 0x49
-#define I2O_CMD_BLOCK_MUNLOCK 0x4B
-#define I2O_CMD_BLOCK_MMOUNT 0x41
-#define I2O_CMD_BLOCK_MEJECT 0x43
-#define I2O_CMD_BLOCK_POWER 0x70
-
-#define I2O_CMD_PRIVATE 0xFF
-
-/* Command status values */
-
-#define I2O_CMD_IN_PROGRESS 0x01
-#define I2O_CMD_REJECTED 0x02
-#define I2O_CMD_FAILED 0x03
-#define I2O_CMD_COMPLETED 0x04
-
-/* I2O API function return values */
-
-#define I2O_RTN_NO_ERROR 0
-#define I2O_RTN_NOT_INIT 1
-#define I2O_RTN_FREE_Q_EMPTY 2
-#define I2O_RTN_TCB_ERROR 3
-#define I2O_RTN_TRANSACTION_ERROR 4
-#define I2O_RTN_ADAPTER_ALREADY_INIT 5
-#define I2O_RTN_MALLOC_ERROR 6
-#define I2O_RTN_ADPTR_NOT_REGISTERED 7
-#define I2O_RTN_MSG_REPLY_TIMEOUT 8
-#define I2O_RTN_NO_STATUS 9
-#define I2O_RTN_NO_FIRM_VER 10
-#define I2O_RTN_NO_LINK_SPEED 11
-
-/* Reply message status defines for all messages */
-
-#define I2O_REPLY_STATUS_SUCCESS 0x00
-#define I2O_REPLY_STATUS_ABORT_DIRTY 0x01
-#define I2O_REPLY_STATUS_ABORT_NO_DATA_TRANSFER 0x02
-#define I2O_REPLY_STATUS_ABORT_PARTIAL_TRANSFER 0x03
-#define I2O_REPLY_STATUS_ERROR_DIRTY 0x04
-#define I2O_REPLY_STATUS_ERROR_NO_DATA_TRANSFER 0x05
-#define I2O_REPLY_STATUS_ERROR_PARTIAL_TRANSFER 0x06
-#define I2O_REPLY_STATUS_PROCESS_ABORT_DIRTY 0x08
-#define I2O_REPLY_STATUS_PROCESS_ABORT_NO_DATA_TRANSFER 0x09
-#define I2O_REPLY_STATUS_PROCESS_ABORT_PARTIAL_TRANSFER 0x0A
-#define I2O_REPLY_STATUS_TRANSACTION_ERROR 0x0B
-#define I2O_REPLY_STATUS_PROGRESS_REPORT 0x80
-
-/* Status codes and Error Information for Parameter functions */
-
-#define I2O_PARAMS_STATUS_SUCCESS 0x00
-#define I2O_PARAMS_STATUS_BAD_KEY_ABORT 0x01
-#define I2O_PARAMS_STATUS_BAD_KEY_CONTINUE 0x02
-#define I2O_PARAMS_STATUS_BUFFER_FULL 0x03
-#define I2O_PARAMS_STATUS_BUFFER_TOO_SMALL 0x04
-#define I2O_PARAMS_STATUS_FIELD_UNREADABLE 0x05
-#define I2O_PARAMS_STATUS_FIELD_UNWRITEABLE 0x06
-#define I2O_PARAMS_STATUS_INSUFFICIENT_FIELDS 0x07
-#define I2O_PARAMS_STATUS_INVALID_GROUP_ID 0x08
-#define I2O_PARAMS_STATUS_INVALID_OPERATION 0x09
-#define I2O_PARAMS_STATUS_NO_KEY_FIELD 0x0A
-#define I2O_PARAMS_STATUS_NO_SUCH_FIELD 0x0B
-#define I2O_PARAMS_STATUS_NON_DYNAMIC_GROUP 0x0C
-#define I2O_PARAMS_STATUS_OPERATION_ERROR 0x0D
-#define I2O_PARAMS_STATUS_SCALAR_ERROR 0x0E
-#define I2O_PARAMS_STATUS_TABLE_ERROR 0x0F
-#define I2O_PARAMS_STATUS_WRONG_GROUP_TYPE 0x10
-
-/* DetailedStatusCode defines for Executive, DDM, Util and Transaction error
- * messages: Table 3-2 Detailed Status Codes.*/
-
-#define I2O_DSC_SUCCESS 0x0000
-#define I2O_DSC_BAD_KEY 0x0002
-#define I2O_DSC_TCL_ERROR 0x0003
-#define I2O_DSC_REPLY_BUFFER_FULL 0x0004
-#define I2O_DSC_NO_SUCH_PAGE 0x0005
-#define I2O_DSC_INSUFFICIENT_RESOURCE_SOFT 0x0006
-#define I2O_DSC_INSUFFICIENT_RESOURCE_HARD 0x0007
-#define I2O_DSC_CHAIN_BUFFER_TOO_LARGE 0x0009
-#define I2O_DSC_UNSUPPORTED_FUNCTION 0x000A
-#define I2O_DSC_DEVICE_LOCKED 0x000B
-#define I2O_DSC_DEVICE_RESET 0x000C
-#define I2O_DSC_INAPPROPRIATE_FUNCTION 0x000D
-#define I2O_DSC_INVALID_INITIATOR_ADDRESS 0x000E
-#define I2O_DSC_INVALID_MESSAGE_FLAGS 0x000F
-#define I2O_DSC_INVALID_OFFSET 0x0010
-#define I2O_DSC_INVALID_PARAMETER 0x0011
-#define I2O_DSC_INVALID_REQUEST 0x0012
-#define I2O_DSC_INVALID_TARGET_ADDRESS 0x0013
-#define I2O_DSC_MESSAGE_TOO_LARGE 0x0014
-#define I2O_DSC_MESSAGE_TOO_SMALL 0x0015
-#define I2O_DSC_MISSING_PARAMETER 0x0016
-#define I2O_DSC_TIMEOUT 0x0017
-#define I2O_DSC_UNKNOWN_ERROR 0x0018
-#define I2O_DSC_UNKNOWN_FUNCTION 0x0019
-#define I2O_DSC_UNSUPPORTED_VERSION 0x001A
-#define I2O_DSC_DEVICE_BUSY 0x001B
-#define I2O_DSC_DEVICE_NOT_AVAILABLE 0x001C
-
-/* DetailedStatusCode defines for Block Storage Operation: Table 6-7 Detailed
- Status Codes.*/
-
-#define I2O_BSA_DSC_SUCCESS 0x0000
-#define I2O_BSA_DSC_MEDIA_ERROR 0x0001
-#define I2O_BSA_DSC_ACCESS_ERROR 0x0002
-#define I2O_BSA_DSC_DEVICE_FAILURE 0x0003
-#define I2O_BSA_DSC_DEVICE_NOT_READY 0x0004
-#define I2O_BSA_DSC_MEDIA_NOT_PRESENT 0x0005
-#define I2O_BSA_DSC_MEDIA_LOCKED 0x0006
-#define I2O_BSA_DSC_MEDIA_FAILURE 0x0007
-#define I2O_BSA_DSC_PROTOCOL_FAILURE 0x0008
-#define I2O_BSA_DSC_BUS_FAILURE 0x0009
-#define I2O_BSA_DSC_ACCESS_VIOLATION 0x000A
-#define I2O_BSA_DSC_WRITE_PROTECTED 0x000B
-#define I2O_BSA_DSC_DEVICE_RESET 0x000C
-#define I2O_BSA_DSC_VOLUME_CHANGED 0x000D
-#define I2O_BSA_DSC_TIMEOUT 0x000E
-
-/* FailureStatusCodes, Table 3-3 Message Failure Codes */
-
-#define I2O_FSC_TRANSPORT_SERVICE_SUSPENDED 0x81
-#define I2O_FSC_TRANSPORT_SERVICE_TERMINATED 0x82
-#define I2O_FSC_TRANSPORT_CONGESTION 0x83
-#define I2O_FSC_TRANSPORT_FAILURE 0x84
-#define I2O_FSC_TRANSPORT_STATE_ERROR 0x85
-#define I2O_FSC_TRANSPORT_TIME_OUT 0x86
-#define I2O_FSC_TRANSPORT_ROUTING_FAILURE 0x87
-#define I2O_FSC_TRANSPORT_INVALID_VERSION 0x88
-#define I2O_FSC_TRANSPORT_INVALID_OFFSET 0x89
-#define I2O_FSC_TRANSPORT_INVALID_MSG_FLAGS 0x8A
-#define I2O_FSC_TRANSPORT_FRAME_TOO_SMALL 0x8B
-#define I2O_FSC_TRANSPORT_FRAME_TOO_LARGE 0x8C
-#define I2O_FSC_TRANSPORT_INVALID_TARGET_ID 0x8D
-#define I2O_FSC_TRANSPORT_INVALID_INITIATOR_ID 0x8E
-#define I2O_FSC_TRANSPORT_INVALID_INITIATOR_CONTEXT 0x8F
-#define I2O_FSC_TRANSPORT_UNKNOWN_FAILURE 0xFF
-
-/* Device Claim Types */
-#define I2O_CLAIM_PRIMARY 0x01000000
-#define I2O_CLAIM_MANAGEMENT 0x02000000
-#define I2O_CLAIM_AUTHORIZED 0x03000000
-#define I2O_CLAIM_SECONDARY 0x04000000
-
-/* Message header defines for VersionOffset */
-#define I2OVER15 0x0001
-#define I2OVER20 0x0002
-
-/* Default is 1.5 */
-#define I2OVERSION I2OVER15
-
-#define SGL_OFFSET_0 I2OVERSION
-#define SGL_OFFSET_4 (0x0040 | I2OVERSION)
-#define SGL_OFFSET_5 (0x0050 | I2OVERSION)
-#define SGL_OFFSET_6 (0x0060 | I2OVERSION)
-#define SGL_OFFSET_7 (0x0070 | I2OVERSION)
-#define SGL_OFFSET_8 (0x0080 | I2OVERSION)
-#define SGL_OFFSET_9 (0x0090 | I2OVERSION)
-#define SGL_OFFSET_10 (0x00A0 | I2OVERSION)
-#define SGL_OFFSET_11 (0x00B0 | I2OVERSION)
-#define SGL_OFFSET_12 (0x00C0 | I2OVERSION)
-#define SGL_OFFSET(x) (((x)<<4) | I2OVERSION)
-
-/* Transaction Reply Lists (TRL) Control Word structure */
-#define TRL_SINGLE_FIXED_LENGTH 0x00
-#define TRL_SINGLE_VARIABLE_LENGTH 0x40
-#define TRL_MULTIPLE_FIXED_LENGTH 0x80
-
- /* msg header defines for MsgFlags */
-#define MSG_STATIC 0x0100
-#define MSG_64BIT_CNTXT 0x0200
-#define MSG_MULTI_TRANS 0x1000
-#define MSG_FAIL 0x2000
-#define MSG_FINAL 0x4000
-#define MSG_REPLY 0x8000
-
- /* minimum size msg */
-#define THREE_WORD_MSG_SIZE 0x00030000
-#define FOUR_WORD_MSG_SIZE 0x00040000
-#define FIVE_WORD_MSG_SIZE 0x00050000
-#define SIX_WORD_MSG_SIZE 0x00060000
-#define SEVEN_WORD_MSG_SIZE 0x00070000
-#define EIGHT_WORD_MSG_SIZE 0x00080000
-#define NINE_WORD_MSG_SIZE 0x00090000
-#define TEN_WORD_MSG_SIZE 0x000A0000
-#define ELEVEN_WORD_MSG_SIZE 0x000B0000
-#define I2O_MESSAGE_SIZE(x) ((x)<<16)
-
-/* special TID assignments */
-#define ADAPTER_TID 0
-#define HOST_TID 1
-
-/* outbound queue defines */
-#define I2O_MAX_OUTBOUND_MSG_FRAMES 128
-#define I2O_OUTBOUND_MSG_FRAME_SIZE 128 /* in 32-bit words */
-
-/* inbound queue definitions */
-#define I2O_MSG_INPOOL_MIN 32
-#define I2O_INBOUND_MSG_FRAME_SIZE 128 /* in 32-bit words */
-
-#define I2O_POST_WAIT_OK 0
-#define I2O_POST_WAIT_TIMEOUT -ETIMEDOUT
-
-#define I2O_CONTEXT_LIST_MIN_LENGTH 15
-#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 360
-#define I2O_TIMEOUT_SCSI_SCB_ABORT 240
-
-/* retries */
-#define I2O_HRT_GET_TRIES 3
-#define I2O_LCT_GET_TRIES 3
-
-/* defines for max_sectors and max_phys_segments */
-#define I2O_MAX_SECTORS 1024
-#define I2O_MAX_SECTORS_LIMITED 128
-#define I2O_MAX_PHYS_SEGMENTS BLK_MAX_SEGMENTS
-
-/*
- * Message structures
- */
-struct i2o_message {
- 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 */
- } s;
- u32 head[4];
- } u;
- /* List follows */
- u32 body[0];
-};
-
-/* MFA and I2O message used by mempool */
-struct i2o_msg_mfa {
- u32 mfa; /* MFA returned by the controller */
- struct i2o_message msg; /* I2O message */
-};
-
-/*
- * Each I2O device entity has one of these. There is one per device.
- */
-struct i2o_device {
- i2o_lct_entry lct_data; /* Device LCT information */
-
- struct i2o_controller *iop; /* Controlling IOP */
- struct list_head list; /* node in IOP devices list */
-
- struct device device;
-
- struct mutex lock; /* device lock */
-};
-
-/*
- * 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 */
-
- /* Message reply handler */
- int (*reply) (struct i2o_controller *, u32, struct i2o_message *);
-
- /* Event handler */
- work_func_t event;
-
- struct workqueue_struct *event_queue; /* Event queue */
-
- struct device_driver driver;
-
- /* notification of changes */
- void (*notify_controller_add) (struct i2o_controller *);
- void (*notify_controller_remove) (struct i2o_controller *);
- void (*notify_device_add) (struct i2o_device *);
- void (*notify_device_remove) (struct i2o_device *);
-
- struct semaphore lock;
-};
-
-/*
- * Contains DMA mapped address information
- */
-struct i2o_dma {
- void *virt;
- dma_addr_t phys;
- size_t len;
-};
-
-/*
- * Contains slab cache and mempool information
- */
-struct i2o_pool {
- char *name;
- struct kmem_cache *slab;
- mempool_t *mempool;
-};
-
-/*
- * Contains IO mapped address information
- */
-struct i2o_io {
- void __iomem *virt;
- unsigned long phys;
- unsigned long len;
-};
-
-/*
- * Context queue entry, used for 32-bit context on 64-bit systems
- */
-struct i2o_context_list_element {
- struct list_head list;
- u32 context;
- void *ptr;
- unsigned long timestamp;
-};
-
-/*
- * Each I2O controller has one of these objects
- */
-struct i2o_controller {
- char name[16];
- int unit;
- int type;
-
- struct pci_dev *pdev; /* PCI device */
-
- unsigned int promise:1; /* Promise controller */
- unsigned int adaptec:1; /* DPT / Adaptec controller */
- unsigned int raptor:1; /* split bar */
- unsigned int no_quiesce:1; /* dont quiesce before reset */
- unsigned int short_req:1; /* use small block sizes */
- unsigned int limit_sectors:1; /* limit number of sectors / request */
- unsigned int pae_support:1; /* controller has 64-bit SGL support */
-
- struct list_head devices; /* list of I2O devices */
- struct list_head list; /* Controller list */
-
- void __iomem *in_port; /* Inbout port address */
- void __iomem *out_port; /* Outbound port address */
- void __iomem *irq_status; /* Interrupt status register address */
- void __iomem *irq_mask; /* Interrupt mask register address */
-
- struct i2o_dma status; /* IOP status block */
-
- struct i2o_dma hrt; /* HW Resource Table */
- i2o_lct *lct; /* Logical Config Table */
- struct i2o_dma dlct; /* Temp LCT */
- struct mutex lct_lock; /* Lock for LCT updates */
- struct i2o_dma status_block; /* IOP status block */
-
- struct i2o_io base; /* controller messaging unit */
- struct i2o_io in_queue; /* inbound message queue Host->IOP */
- struct i2o_dma out_queue; /* outbound message queue IOP->Host */
-
- struct i2o_pool in_msg; /* mempool for inbound messages */
-
- unsigned int battery:1; /* Has a battery backup */
- unsigned int io_alloc:1; /* An I/O resource was allocated */
- unsigned int mem_alloc:1; /* A memory resource was allocated */
-
- struct resource io_resource; /* I/O resource allocated to the IOP */
- struct resource mem_resource; /* Mem resource allocated to the IOP */
-
- struct device device;
- struct i2o_device *exec; /* Executive */
-#if BITS_PER_LONG == 64
- spinlock_t context_list_lock; /* lock for context_list */
- 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 */
- void *driver_data[I2O_MAX_DRIVERS]; /* storage for drivers */
-};
-
-/*
- * I2O System table entry
- *
- * The system table contains information about all the IOPs in the
- * system. It is sent to all IOPs so that they can create peer2peer
- * connections between them.
- */
-struct i2o_sys_tbl_entry {
- u16 org_id;
- u16 reserved1;
- u32 iop_id:12;
- u32 reserved2:20;
- u16 seg_num:12;
- u16 i2o_version:4;
- u8 iop_state;
- u8 msg_type;
- u16 frame_size;
- u16 reserved3;
- u32 last_changed;
- u32 iop_capabilities;
- u32 inbound_low;
- u32 inbound_high;
-};
-
-struct i2o_sys_tbl {
- u8 num_entries;
- u8 version;
- u16 reserved1;
- u32 change_ind;
- u32 reserved2;
- u32 reserved3;
- struct i2o_sys_tbl_entry iops[0];
-};
-
-extern struct list_head i2o_controllers;
-
-/* Message functions */
-extern struct i2o_message *i2o_msg_get_wait(struct i2o_controller *, int);
-extern int i2o_msg_post_wait_mem(struct i2o_controller *, struct i2o_message *,
- unsigned long, struct i2o_dma *);
-
-/* IOP functions */
-extern int i2o_status_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 *);
-extern u32 i2o_cntxt_list_get_ptr(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);
-};
-
-static inline u32 i2o_dma_low(dma_addr_t dma_addr)
-{
- return (u32) (u64) dma_addr;
-};
-
-static inline u32 i2o_dma_high(dma_addr_t dma_addr)
-{
- return (u32) ((u64) dma_addr >> 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_cntxt_list_get_ptr(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;
-};
-
-static inline u32 i2o_dma_low(dma_addr_t dma_addr)
-{
- return (u32) dma_addr;
-};
-
-static inline u32 i2o_dma_high(dma_addr_t dma_addr)
-{
- return 0;
-};
-#endif
-
-extern u16 i2o_sg_tablesize(struct i2o_controller *c, u16 body_size);
-extern dma_addr_t i2o_dma_map_single(struct i2o_controller *c, void *ptr,
- size_t size,
- enum dma_data_direction direction,
- u32 ** sg_ptr);
-extern int i2o_dma_map_sg(struct i2o_controller *c,
- struct scatterlist *sg, int sg_count,
- enum dma_data_direction direction,
- u32 ** sg_ptr);
-extern int i2o_dma_alloc(struct device *dev, struct i2o_dma *addr, size_t len);
-extern void i2o_dma_free(struct device *dev, struct i2o_dma *addr);
-extern int i2o_dma_realloc(struct device *dev, struct i2o_dma *addr,
- size_t len);
-extern int i2o_pool_alloc(struct i2o_pool *pool, const char *name,
- size_t size, int min_nr);
-extern void i2o_pool_free(struct i2o_pool *pool);
-/* I2O driver (OSM) functions */
-extern int i2o_driver_register(struct i2o_driver *);
-extern void i2o_driver_unregister(struct i2o_driver *);
-
-/**
- * i2o_driver_notify_controller_add - Send notification of added controller
- * @drv: I2O driver
- * @c: I2O controller
- *
- * Send notification of added controller to a single registered driver.
- */
-static inline void i2o_driver_notify_controller_add(struct i2o_driver *drv,
- struct i2o_controller *c)
-{
- if (drv->notify_controller_add)
- drv->notify_controller_add(c);
-};
-
-/**
- * i2o_driver_notify_controller_remove - Send notification of removed controller
- * @drv: I2O driver
- * @c: I2O controller
- *
- * Send notification of removed controller to a single registered driver.
- */
-static inline void i2o_driver_notify_controller_remove(struct i2o_driver *drv,
- struct i2o_controller *c)
-{
- if (drv->notify_controller_remove)
- drv->notify_controller_remove(c);
-};
-
-/**
- * i2o_driver_notify_device_add - Send notification of added device
- * @drv: I2O driver
- * @i2o_dev: the added i2o_device
- *
- * Send notification of added device to a single registered driver.
- */
-static inline void i2o_driver_notify_device_add(struct i2o_driver *drv,
- struct i2o_device *i2o_dev)
-{
- if (drv->notify_device_add)
- drv->notify_device_add(i2o_dev);
-};
-
-/**
- * i2o_driver_notify_device_remove - Send notification of removed device
- * @drv: I2O driver
- * @i2o_dev: the added i2o_device
- *
- * Send notification of removed device to a single registered driver.
- */
-static inline void i2o_driver_notify_device_remove(struct i2o_driver *drv,
- struct i2o_device *i2o_dev)
-{
- if (drv->notify_device_remove)
- drv->notify_device_remove(i2o_dev);
-};
-
-extern void i2o_driver_notify_controller_add_all(struct i2o_controller *);
-extern void i2o_driver_notify_controller_remove_all(struct i2o_controller *);
-extern void i2o_driver_notify_device_add_all(struct i2o_device *);
-extern void i2o_driver_notify_device_remove_all(struct i2o_device *);
-
-/* 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 *);
-
-/* device / driver / kobject conversion 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)
-#define to_i2o_controller(dev) container_of(dev, struct i2o_controller, device)
-
-/**
- * i2o_out_to_virt - Turn an I2O message to a virtual address
- * @c: controller
- * @m: message engine value
- *
- * Turn a receive message from an I2O controller bus address into
- * a Linux virtual address. The shared page frame is a linear block
- * so we simply have to shift the offset. This function does not
- * work for sender side messages as they are ioremap objects
- * provided by the I2O controller.
- */
-static inline struct i2o_message *i2o_msg_out_to_virt(struct i2o_controller *c,
- u32 m)
-{
- BUG_ON(m < c->out_queue.phys
- || m >= c->out_queue.phys + c->out_queue.len);
-
- return c->out_queue.virt + (m - c->out_queue.phys);
-};
-
-/**
- * i2o_msg_in_to_virt - Turn an I2O message to a virtual address
- * @c: controller
- * @m: message engine value
- *
- * Turn a send message from an I2O controller bus address into
- * a Linux virtual address. The shared page frame is a linear block
- * so we simply have to shift the offset. This function does not
- * work for receive side messages as they are kmalloc objects
- * in a different pool.
- */
-static inline struct i2o_message __iomem *i2o_msg_in_to_virt(struct
- i2o_controller *c,
- u32 m)
-{
- return c->in_queue.virt + m;
-};
-
-/**
- * i2o_msg_get - obtain an I2O message from the IOP
- * @c: I2O controller
- *
- * This function tries to get a message frame. If no message frame is
- * available do not wait until one is available (see also i2o_msg_get_wait).
- * The returned pointer to the message frame is not in I/O memory, it is
- * allocated from a mempool. But because a MFA is allocated from the
- * controller too it is guaranteed that i2o_msg_post() will never fail.
- *
- * On a success a pointer to the message frame is returned. If the message
- * queue is empty -EBUSY is returned and if no memory is available -ENOMEM
- * is returned.
- */
-static inline struct i2o_message *i2o_msg_get(struct i2o_controller *c)
-{
- struct i2o_msg_mfa *mmsg = mempool_alloc(c->in_msg.mempool, GFP_ATOMIC);
- if (!mmsg)
- return ERR_PTR(-ENOMEM);
-
- mmsg->mfa = readl(c->in_port);
- if (unlikely(mmsg->mfa >= c->in_queue.len)) {
- u32 mfa = mmsg->mfa;
-
- mempool_free(mmsg, c->in_msg.mempool);
-
- if (mfa == I2O_QUEUE_EMPTY)
- return ERR_PTR(-EBUSY);
- return ERR_PTR(-EFAULT);
- }
-
- return &mmsg->msg;
-};
-
-/**
- * i2o_msg_post - Post I2O message to I2O controller
- * @c: I2O controller to which the message should be send
- * @msg: message returned by i2o_msg_get()
- *
- * Post the message to the I2O controller and return immediately.
- */
-static inline void i2o_msg_post(struct i2o_controller *c,
- struct i2o_message *msg)
-{
- struct i2o_msg_mfa *mmsg;
-
- mmsg = container_of(msg, struct i2o_msg_mfa, msg);
- memcpy_toio(i2o_msg_in_to_virt(c, mmsg->mfa), msg,
- (le32_to_cpu(msg->u.head[0]) >> 16) << 2);
- writel(mmsg->mfa, c->in_port);
- mempool_free(mmsg, c->in_msg.mempool);
-};
-
-/**
- * i2o_msg_post_wait - Post and wait a message and wait until return
- * @c: controller
- * @msg: 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,
- struct i2o_message *msg,
- unsigned long timeout)
-{
- return i2o_msg_post_wait_mem(c, msg, timeout, NULL);
-};
-
-/**
- * i2o_msg_nop_mfa - Returns a fetched MFA back to the controller
- * @c: I2O controller from which the MFA was fetched
- * @mfa: MFA which should be returned
- *
- * This function must be used for preserved messages, because i2o_msg_nop()
- * also returns the allocated memory back to the msg_pool mempool.
- */
-static inline void i2o_msg_nop_mfa(struct i2o_controller *c, u32 mfa)
-{
- struct i2o_message __iomem *msg;
- u32 nop[3] = {
- THREE_WORD_MSG_SIZE | SGL_OFFSET_0,
- I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | ADAPTER_TID,
- 0x00000000
- };
-
- msg = i2o_msg_in_to_virt(c, mfa);
- memcpy_toio(msg, nop, sizeof(nop));
- writel(mfa, c->in_port);
-};
-
-/**
- * i2o_msg_nop - Returns a message which is not used
- * @c: I2O controller from which the message was created
- * @msg: 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 MFA is lost as well
- * as the allocated memory from the mempool.
- */
-static inline void i2o_msg_nop(struct i2o_controller *c,
- struct i2o_message *msg)
-{
- struct i2o_msg_mfa *mmsg;
- mmsg = container_of(msg, struct i2o_msg_mfa, msg);
-
- i2o_msg_nop_mfa(c, mmsg->mfa);
- mempool_free(mmsg, c->in_msg.mempool);
-};
-
-/**
- * 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.
- */
-static inline void i2o_flush_reply(struct i2o_controller *c, u32 m)
-{
- writel(m, c->out_port);
-};
-
-/*
- * Endian handling wrapped into the macro - keeps the core code
- * cleaner.
- */
-
-#define i2o_raw_writel(val, mem) __raw_writel(cpu_to_le32(val), mem)
-
-extern int i2o_parm_field_get(struct i2o_device *, int, int, void *, int);
-extern int i2o_parm_table_get(struct i2o_device *, int, int, int, void *, int,
- void *, int);
-
-/* debugging and troubleshooting/diagnostic helpers. */
-#define osm_printk(level, format, arg...) \
- printk(level "%s: " format, OSM_NAME , ## arg)
-
-#ifdef DEBUG
-#define osm_debug(format, arg...) \
- osm_printk(KERN_DEBUG, format , ## arg)
-#else
-#define osm_debug(format, arg...) \
- do { } while (0)
-#endif
-
-#define osm_err(format, arg...) \
- osm_printk(KERN_ERR, format , ## arg)
-#define osm_info(format, arg...) \
- osm_printk(KERN_INFO, format , ## arg)
-#define osm_warn(format, arg...) \
- osm_printk(KERN_WARNING, format , ## arg)
-
-/* 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);
-
-#endif /* _I2O_H */
projects / openwrt / staging / blogic.git / commitdiff