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qla1280.c
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/******************************************************************************
* QLOGIC LINUX SOFTWARE
*
* QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver
* Copyright (C) 2000 Qlogic Corporation (www.qlogic.com)
* Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc.
* Copyright (C) 2003-2004 Christoph Hellwig
*
* 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.
*
******************************************************************************/
#define QLA1280_VERSION "3.25"
/*****************************************************************************
Revision History:
Rev 3.25.1, February 10, 2005 Christoph Hellwig
- use pci_map_single to map non-S/G requests
- remove qla1280_proc_info
Rev 3.25, September 28, 2004, Christoph Hellwig
- add support for ISP1020/1040
- don't include "scsi.h" anymore for 2.6.x
Rev 3.24.4 June 7, 2004 Christoph Hellwig
- restructure firmware loading, cleanup initialization code
- prepare support for ISP1020/1040 chips
Rev 3.24.3 January 19, 2004, Jes Sorensen
- Handle PCI DMA mask settings correctly
- Correct order of error handling in probe_one, free_irq should not
be called if request_irq failed
Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez
- Big endian fixes (James)
- Remove bogus IOCB content on zero data transfer commands (Andrew)
Rev 3.24.1 January 5, 2004, Jes Sorensen
- Initialize completion queue to avoid OOPS on probe
- Handle interrupts during mailbox testing
Rev 3.24 November 17, 2003, Christoph Hellwig
- use struct list_head for completion queue
- avoid old Scsi_FOO typedefs
- cleanup 2.4 compat glue a bit
- use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h"
- make initialization for memory mapped vs port I/O more similar
- remove broken pci config space manipulation
- kill more cruft
- this is an almost perfect 2.6 scsi driver now! ;)
Rev 3.23.39 December 17, 2003, Jes Sorensen
- Delete completion queue from srb if mailbox command failed to
to avoid qla1280_done completeting qla1280_error_action's
obsolete context
- Reduce arguments for qla1280_done
Rev 3.23.38 October 18, 2003, Christoph Hellwig
- Convert to new-style hotplugable driver for 2.6
- Fix missing scsi_unregister/scsi_host_put on HBA removal
- Kill some more cruft
Rev 3.23.37 October 1, 2003, Jes Sorensen
- Make MMIO depend on CONFIG_X86_VISWS instead of yet another
random CONFIG option
- Clean up locking in probe path
Rev 3.23.36 October 1, 2003, Christoph Hellwig
- queuecommand only ever receives new commands - clear flags
- Reintegrate lost fixes from Linux 2.5
Rev 3.23.35 August 14, 2003, Jes Sorensen
- Build against 2.6
Rev 3.23.34 July 23, 2003, Jes Sorensen
- Remove pointless TRUE/FALSE macros
- Clean up vchan handling
Rev 3.23.33 July 3, 2003, Jes Sorensen
- Don't define register access macros before define determining MMIO.
This just happend to work out on ia64 but not elsewhere.
- Don't try and read from the card while it is in reset as
it won't respond and causes an MCA
Rev 3.23.32 June 23, 2003, Jes Sorensen
- Basic support for boot time arguments
Rev 3.23.31 June 8, 2003, Jes Sorensen
- Reduce boot time messages
Rev 3.23.30 June 6, 2003, Jes Sorensen
- Do not enable sync/wide/ppr before it has been determined
that the target device actually supports it
- Enable DMA arbitration for multi channel controllers
Rev 3.23.29 June 3, 2003, Jes Sorensen
- Port to 2.5.69
Rev 3.23.28 June 3, 2003, Jes Sorensen
- Eliminate duplicate marker commands on bus resets
- Handle outstanding commands appropriately on bus/device resets
Rev 3.23.27 May 28, 2003, Jes Sorensen
- Remove bogus input queue code, let the Linux SCSI layer do the work
- Clean up NVRAM handling, only read it once from the card
- Add a number of missing default nvram parameters
Rev 3.23.26 Beta May 28, 2003, Jes Sorensen
- Use completion queue for mailbox commands instead of busy wait
Rev 3.23.25 Beta May 27, 2003, James Bottomley
- Migrate to use new error handling code
Rev 3.23.24 Beta May 21, 2003, James Bottomley
- Big endian support
- Cleanup data direction code
Rev 3.23.23 Beta May 12, 2003, Jes Sorensen
- Switch to using MMIO instead of PIO
Rev 3.23.22 Beta April 15, 2003, Jes Sorensen
- Fix PCI parity problem with 12160 during reset.
Rev 3.23.21 Beta April 14, 2003, Jes Sorensen
- Use pci_map_page()/pci_unmap_page() instead of map_single version.
Rev 3.23.20 Beta April 9, 2003, Jes Sorensen
- Remove < 2.4.x support
- Introduce HOST_LOCK to make the spin lock changes portable.
- Remove a bunch of idiotic and unnecessary typedef's
- Kill all leftovers of target-mode support which never worked anyway
Rev 3.23.19 Beta April 11, 2002, Linus Torvalds
- Do qla1280_pci_config() before calling request_irq() and
request_region()
- Use pci_dma_hi32() to handle upper word of DMA addresses instead
of large shifts
- Hand correct arguments to free_irq() in case of failure
Rev 3.23.18 Beta April 11, 2002, Jes Sorensen
- Run source through Lindent and clean up the output
Rev 3.23.17 Beta April 11, 2002, Jes Sorensen
- Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32
Rev 3.23.16 Beta March 19, 2002, Jes Sorensen
- Rely on mailbox commands generating interrupts - do not
run qla1280_isr() from ql1280_mailbox_command()
- Remove device_reg_t
- Integrate ql12160_set_target_parameters() with 1280 version
- Make qla1280_setup() non static
- Do not call qla1280_check_for_dead_scsi_bus() on every I/O request
sent to the card - this command pauses the firmare!!!
Rev 3.23.15 Beta March 19, 2002, Jes Sorensen
- Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions
- Remove a pile of pointless and confusing (srb_t **) and
(scsi_lu_t *) typecasts
- Explicit mark that we do not use the new error handling (for now)
- Remove scsi_qla_host_t and use 'struct' instead
- Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled,
pci_64bit_slot flags which weren't used for anything anyway
- Grab host->host_lock while calling qla1280_isr() from abort()
- Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we
do not need to save/restore flags in the interrupt handler
- Enable interrupts early (before any mailbox access) in preparation
for cleaning up the mailbox handling
Rev 3.23.14 Beta March 14, 2002, Jes Sorensen
- Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace
it with proper use of dprintk().
- Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take
a debug level argument to determine if data is to be printed
- Add KERN_* info to printk()
Rev 3.23.13 Beta March 14, 2002, Jes Sorensen
- Significant cosmetic cleanups
- Change debug code to use dprintk() and remove #if mess
Rev 3.23.12 Beta March 13, 2002, Jes Sorensen
- More cosmetic cleanups, fix places treating return as function
- use cpu_relax() in qla1280_debounce_register()
Rev 3.23.11 Beta March 13, 2002, Jes Sorensen
- Make it compile under 2.5.5
Rev 3.23.10 Beta October 1, 2001, Jes Sorensen
- Do no typecast short * to long * in QL1280BoardTbl, this
broke miserably on big endian boxes
Rev 3.23.9 Beta September 30, 2001, Jes Sorensen
- Remove pre 2.2 hack for checking for reentrance in interrupt handler
- Make data types used to receive from SCSI_{BUS,TCN,LUN}_32
unsigned int to match the types from struct scsi_cmnd
Rev 3.23.8 Beta September 29, 2001, Jes Sorensen
- Remove bogus timer_t typedef from qla1280.h
- Remove obsolete pre 2.2 PCI setup code, use proper #define's
for PCI_ values, call pci_set_master()
- Fix memleak of qla1280_buffer on module unload
- Only compile module parsing code #ifdef MODULE - should be
changed to use individual MODULE_PARM's later
- Remove dummy_buffer that was never modified nor printed
- ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove
#ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls
- Remove \r from print statements, this is Linux, not DOS
- Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK}
dummy macros
- Remove C++ compile hack in header file as Linux driver are not
supposed to be compiled as C++
- Kill MS_64BITS macro as it makes the code more readable
- Remove unnecessary flags.in_interrupts bit
Rev 3.23.7 Beta August 20, 2001, Jes Sorensen
- Dont' check for set flags on q->q_flag one by one in qla1280_next()
- Check whether the interrupt was generated by the QLA1280 before
doing any processing
- qla1280_status_entry(): Only zero out part of sense_buffer that
is not being copied into
- Remove more superflouous typecasts
- qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy()
Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel
- Don't walk the entire list in qla1280_putq_t() just to directly
grab the pointer to the last element afterwards
Rev 3.23.5 Beta August 9, 2001, Jes Sorensen
- Don't use SA_INTERRUPT, it's use is deprecated for this kinda driver
Rev 3.23.4 Beta August 8, 2001, Jes Sorensen
- Set dev->max_sectors to 1024
Rev 3.23.3 Beta August 6, 2001, Jes Sorensen
- Provide compat macros for pci_enable_device(), pci_find_subsys()
and scsi_set_pci_device()
- Call scsi_set_pci_device() for all devices
- Reduce size of kernel version dependent device probe code
- Move duplicate probe/init code to separate function
- Handle error if qla1280_mem_alloc() fails
- Kill OFFSET() macro and use Linux's PCI definitions instead
- Kill private structure defining PCI config space (struct config_reg)
- Only allocate I/O port region if not in MMIO mode
- Remove duplicate (unused) sanity check of sife of srb_t
Rev 3.23.2 Beta August 6, 2001, Jes Sorensen
- Change home-brew memset() implementations to use memset()
- Remove all references to COMTRACE() - accessing a PC's COM2 serial
port directly is not legal under Linux.
Rev 3.23.1 Beta April 24, 2001, Jes Sorensen
- Remove pre 2.2 kernel support
- clean up 64 bit DMA setting to use 2.4 API (provide backwards compat)
- Fix MMIO access to use readl/writel instead of directly
dereferencing pointers
- Nuke MSDOS debugging code
- Change true/false data types to int from uint8_t
- Use int for counters instead of uint8_t etc.
- Clean up size & byte order conversion macro usage
Rev 3.23 Beta January 11, 2001 BN Qlogic
- Added check of device_id when handling non
QLA12160s during detect().
Rev 3.22 Beta January 5, 2001 BN Qlogic
- Changed queue_task() to schedule_task()
for kernels 2.4.0 and higher.
Note: 2.4.0-testxx kernels released prior to
the actual 2.4.0 kernel release on January 2001
will get compile/link errors with schedule_task().
Please update your kernel to released 2.4.0 level,
or comment lines in this file flagged with 3.22
to resolve compile/link error of schedule_task().
- Added -DCONFIG_SMP in addition to -D__SMP__
in Makefile for 2.4.0 builds of driver as module.
Rev 3.21 Beta January 4, 2001 BN Qlogic
- Changed criteria of 64/32 Bit mode of HBA
operation according to BITS_PER_LONG rather
than HBA's NVRAM setting of >4Gig memory bit;
so that the HBA auto-configures without the need
to setup each system individually.
Rev 3.20 Beta December 5, 2000 BN Qlogic
- Added priority handling to IA-64 onboard SCSI
ISP12160 chip for kernels greater than 2.3.18.
- Added irqrestore for qla1280_intr_handler.
- Enabled /proc/scsi/qla1280 interface.
- Clear /proc/scsi/qla1280 counters in detect().
Rev 3.19 Beta October 13, 2000 BN Qlogic
- Declare driver_template for new kernel
(2.4.0 and greater) scsi initialization scheme.
- Update /proc/scsi entry for 2.3.18 kernels and
above as qla1280
Rev 3.18 Beta October 10, 2000 BN Qlogic
- Changed scan order of adapters to map
the QLA12160 followed by the QLA1280.
Rev 3.17 Beta September 18, 2000 BN Qlogic
- Removed warnings for 32 bit 2.4.x compiles
- Corrected declared size for request and response
DMA addresses that are kept in each ha
Rev. 3.16 Beta August 25, 2000 BN Qlogic
- Corrected 64 bit addressing issue on IA-64
where the upper 32 bits were not properly
passed to the RISC engine.
Rev. 3.15 Beta August 22, 2000 BN Qlogic
- Modified qla1280_setup_chip to properly load
ISP firmware for greater that 4 Gig memory on IA-64
Rev. 3.14 Beta August 16, 2000 BN Qlogic
- Added setting of dma_mask to full 64 bit
if flags.enable_64bit_addressing is set in NVRAM
Rev. 3.13 Beta August 16, 2000 BN Qlogic
- Use new PCI DMA mapping APIs for 2.4.x kernel
Rev. 3.12 July 18, 2000 Redhat & BN Qlogic
- Added check of pci_enable_device to detect() for 2.3.x
- Use pci_resource_start() instead of
pdev->resource[0].start in detect() for 2.3.x
- Updated driver version
Rev. 3.11 July 14, 2000 BN Qlogic
- Updated SCSI Firmware to following versions:
qla1x80: 8.13.08
qla1x160: 10.04.08
- Updated driver version to 3.11
Rev. 3.10 June 23, 2000 BN Qlogic
- Added filtering of AMI SubSys Vendor ID devices
Rev. 3.9
- DEBUG_QLA1280 undefined and new version BN Qlogic
Rev. 3.08b May 9, 2000 MD Dell
- Added logic to check against AMI subsystem vendor ID
Rev. 3.08 May 4, 2000 DG Qlogic
- Added logic to check for PCI subsystem ID.
Rev. 3.07 Apr 24, 2000 DG & BN Qlogic
- Updated SCSI Firmware to following versions:
qla12160: 10.01.19
qla1280: 8.09.00
Rev. 3.06 Apr 12, 2000 DG & BN Qlogic
- Internal revision; not released
Rev. 3.05 Mar 28, 2000 DG & BN Qlogic
- Edit correction for virt_to_bus and PROC.
Rev. 3.04 Mar 28, 2000 DG & BN Qlogic
- Merge changes from ia64 port.
Rev. 3.03 Mar 28, 2000 BN Qlogic
- Increase version to reflect new code drop with compile fix
of issue with inclusion of linux/spinlock for 2.3 kernels
Rev. 3.02 Mar 15, 2000 BN Qlogic
- Merge qla1280_proc_info from 2.10 code base
Rev. 3.01 Feb 10, 2000 BN Qlogic
- Corrected code to compile on a 2.2.x kernel.
Rev. 3.00 Jan 17, 2000 DG Qlogic
- Added 64-bit support.
Rev. 2.07 Nov 9, 1999 DG Qlogic
- Added new routine to set target parameters for ISP12160.
Rev. 2.06 Sept 10, 1999 DG Qlogic
- Added support for ISP12160 Ultra 3 chip.
Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont
- Modified code to remove errors generated when compiling with
Cygnus IA64 Compiler.
- Changed conversion of pointers to unsigned longs instead of integers.
- Changed type of I/O port variables from uint32_t to unsigned long.
- Modified OFFSET macro to work with 64-bit as well as 32-bit.
- Changed sprintf and printk format specifiers for pointers to %p.
- Changed some int to long type casts where needed in sprintf & printk.
- Added l modifiers to sprintf and printk format specifiers for longs.
- Removed unused local variables.
Rev. 1.20 June 8, 1999 DG, Qlogic
Changes to support RedHat release 6.0 (kernel 2.2.5).
- Added SCSI exclusive access lock (io_request_lock) when accessing
the adapter.
- Added changes for the new LINUX interface template. Some new error
handling routines have been added to the template, but for now we
will use the old ones.
- Initial Beta Release.
*****************************************************************************/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/version.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/ioport.h>
#include <linux/delay.h>
#include <linux/timer.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/proc_fs.h>
#include <linux/stat.h>
#include <linux/slab.h>
#include <linux/pci_ids.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/byteorder.h>
#include <asm/processor.h>
#include <asm/types.h>
#include <asm/system.h>
#if LINUX_VERSION_CODE >= 0x020545
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#else
#include <linux/blk.h>
#include "scsi.h"
#include <scsi/scsi_host.h>
#include "sd.h"
#endif
#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
#include <asm/sn/io.h>
#endif
#if LINUX_VERSION_CODE < 0x020407
#error "Kernels older than 2.4.7 are no longer supported"
#endif
/*
* Compile time Options:
* 0 - Disable and 1 - Enable
*/
#define DEBUG_QLA1280_INTR 0
#define DEBUG_PRINT_NVRAM 0
#define DEBUG_QLA1280 0
/*
* The SGI VISWS is broken and doesn't support MMIO ;-(
*/
#ifdef CONFIG_X86_VISWS
#define MEMORY_MAPPED_IO 0
#else
#define MEMORY_MAPPED_IO 1
#endif
#define UNIQUE_FW_NAME
#include "qla1280.h"
#include "ql12160_fw.h" /* ISP RISC codes */
#include "ql1280_fw.h"
#include "ql1040_fw.h"
/*
* Missing PCI ID's
*/
#ifndef PCI_DEVICE_ID_QLOGIC_ISP1080
#define PCI_DEVICE_ID_QLOGIC_ISP1080 0x1080
#endif
#ifndef PCI_DEVICE_ID_QLOGIC_ISP1240
#define PCI_DEVICE_ID_QLOGIC_ISP1240 0x1240
#endif
#ifndef PCI_DEVICE_ID_QLOGIC_ISP1280
#define PCI_DEVICE_ID_QLOGIC_ISP1280 0x1280
#endif
#ifndef PCI_DEVICE_ID_QLOGIC_ISP10160
#define PCI_DEVICE_ID_QLOGIC_ISP10160 0x1016
#endif
#ifndef PCI_DEVICE_ID_QLOGIC_ISP12160
#define PCI_DEVICE_ID_QLOGIC_ISP12160 0x1216
#endif
#ifndef PCI_VENDOR_ID_AMI
#define PCI_VENDOR_ID_AMI 0x101e
#endif
#ifndef BITS_PER_LONG
#error "BITS_PER_LONG not defined!"
#endif
#if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM
#define QLA_64BIT_PTR 1
#endif
#ifdef QLA_64BIT_PTR
#define pci_dma_hi32(a) ((a >> 16) >> 16)
#else
#define pci_dma_hi32(a) 0
#endif
#define pci_dma_lo32(a) (a & 0xffffffff)
#define NVRAM_DELAY() udelay(500) /* 2 microseconds */
#if LINUX_VERSION_CODE < 0x020500
#define HOST_LOCK &io_request_lock
#define irqreturn_t void
#define IRQ_RETVAL(foo)
#define MSG_ORDERED_TAG 1
#define DMA_BIDIRECTIONAL SCSI_DATA_UNKNOWN
#define DMA_TO_DEVICE SCSI_DATA_WRITE
#define DMA_FROM_DEVICE SCSI_DATA_READ
#define DMA_NONE SCSI_DATA_NONE
#ifndef HAVE_SECTOR_T
typedef unsigned int sector_t;
#endif
static inline void
scsi_adjust_queue_depth(struct scsi_device *device, int tag, int depth)
{
if (tag) {
device->tagged_queue = tag;
device->current_tag = 0;
}
device->queue_depth = depth;
}
static inline struct Scsi_Host *scsi_host_alloc(Scsi_Host_Template *t, size_t s)
{
return scsi_register(t, s);
}
static inline void scsi_host_put(struct Scsi_Host *h)
{
scsi_unregister(h);
}
#else
#define HOST_LOCK ha->host->host_lock
#endif
#if LINUX_VERSION_CODE < 0x020600
#define DEV_SIMPLE_TAGS(device) device->tagged_queue
/*
* Hack around that qla1280_remove_one is called from
* qla1280_release in 2.4
*/
#undef __devexit
#define __devexit
#else
#define DEV_SIMPLE_TAGS(device) device->simple_tags
#endif
#if defined(__ia64__) && !defined(ia64_platform_is)
#define ia64_platform_is(foo) (!strcmp(x, platform_name))
#endif
#define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020)
#define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \
ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240)
#define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \
ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160)
static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *);
static void qla1280_remove_one(struct pci_dev *);
/*
* QLogic Driver Support Function Prototypes.
*/
static void qla1280_done(struct scsi_qla_host *);
#if LINUX_VERSION_CODE < 0x020545
static void qla1280_get_target_options(struct scsi_cmnd *, struct scsi_qla_host *);
#endif
static int qla1280_get_token(char *);
static int qla1280_setup(char *s) __init;
/*
* QLogic ISP1280 Hardware Support Function Prototypes.
*/
static int qla1280_load_firmware(struct scsi_qla_host *);
static int qla1280_init_rings(struct scsi_qla_host *);
static int qla1280_nvram_config(struct scsi_qla_host *);
static int qla1280_mailbox_command(struct scsi_qla_host *,
uint8_t, uint16_t *);
static int qla1280_bus_reset(struct scsi_qla_host *, int);
static int qla1280_device_reset(struct scsi_qla_host *, int, int);
static int qla1280_abort_device(struct scsi_qla_host *, int, int, int);
static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int);
static int qla1280_abort_isp(struct scsi_qla_host *);
#ifdef QLA_64BIT_PTR
static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *);
#else
static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *);
#endif
static void qla1280_nv_write(struct scsi_qla_host *, uint16_t);
static void qla1280_poll(struct scsi_qla_host *);
static void qla1280_reset_adapter(struct scsi_qla_host *);
static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8);
static void qla1280_isp_cmd(struct scsi_qla_host *);
static void qla1280_isr(struct scsi_qla_host *, struct list_head *);
static void qla1280_rst_aen(struct scsi_qla_host *);
static void qla1280_status_entry(struct scsi_qla_host *, struct response *,
struct list_head *);
static void qla1280_error_entry(struct scsi_qla_host *, struct response *,
struct list_head *);
static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t);
static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t);
static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *);
static request_t *qla1280_req_pkt(struct scsi_qla_host *);
static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *,
unsigned int);
static void qla1280_get_target_parameters(struct scsi_qla_host *,
struct scsi_device *);
static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int);
static struct qla_driver_setup driver_setup;
/*
* convert scsi data direction to request_t control flags
*/
static inline uint16_t
qla1280_data_direction(struct scsi_cmnd *cmnd)
{
switch(cmnd->sc_data_direction) {
case DMA_FROM_DEVICE:
return BIT_5;
case DMA_TO_DEVICE:
return BIT_6;
case DMA_BIDIRECTIONAL:
return BIT_5 | BIT_6;
/*
* We could BUG() on default here if one of the four cases aren't
* met, but then again if we receive something like that from the
* SCSI layer we have more serious problems. This shuts up GCC.
*/
case DMA_NONE:
default:
return 0;
}
}
#if DEBUG_QLA1280
static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd);
static void __qla1280_dump_buffer(char *, int);
#endif
/*
* insmod needs to find the variable and make it point to something
*/
#ifdef MODULE
static char *qla1280;
/* insmod qla1280 options=verbose" */
module_param(qla1280, charp, 0);
#else
__setup("qla1280=", qla1280_setup);
#endif
/*
* We use the scsi_pointer structure that's included with each scsi_command
* to overlay our struct srb over it. qla1280_init() checks that a srb is not
* bigger than a scsi_pointer.
*/
#define CMD_SP(Cmnd) &Cmnd->SCp
#define CMD_CDBLEN(Cmnd) Cmnd->cmd_len
#define CMD_CDBP(Cmnd) Cmnd->cmnd
#define CMD_SNSP(Cmnd) Cmnd->sense_buffer
#define CMD_SNSLEN(Cmnd) sizeof(Cmnd->sense_buffer)
#define CMD_RESULT(Cmnd) Cmnd->result
#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
#if LINUX_VERSION_CODE < 0x020545
#define CMD_REQUEST(Cmnd) Cmnd->request.cmd
#else
#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
#endif
#define CMD_HOST(Cmnd) Cmnd->device->host
#define SCSI_BUS_32(Cmnd) Cmnd->device->channel
#define SCSI_TCN_32(Cmnd) Cmnd->device->id
#define SCSI_LUN_32(Cmnd) Cmnd->device->lun
/*****************************************/
/* ISP Boards supported by this driver */
/*****************************************/
struct qla_boards {
unsigned char name[9]; /* Board ID String */
int numPorts; /* Number of SCSI ports */
unsigned short *fwcode; /* pointer to FW array */
unsigned short *fwlen; /* number of words in array */
unsigned short *fwstart; /* start address for F/W */
unsigned char *fwver; /* Ptr to F/W version array */
};
/* NOTE: the last argument in each entry is used to index ql1280_board_tbl */
static struct pci_device_id qla1280_pci_tbl[] = {
{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
#ifdef CONFIG_SCSI_QLOGIC_1280_1040
{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
#endif
{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2},
{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3},
{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4},
{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5},
{0,}
};
MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl);
static struct qla_boards ql1280_board_tbl[] = {
/* Name , Number of ports, FW details */
{"QLA12160", 2, &fw12160i_code01[0], &fw12160i_length01,
&fw12160i_addr01, &fw12160i_version_str[0]},
{"QLA1040", 1, &risc_code01[0], &risc_code_length01,
&risc_code_addr01, &firmware_version[0]},
{"QLA1080", 1, &fw1280ei_code01[0], &fw1280ei_length01,
&fw1280ei_addr01, &fw1280ei_version_str[0]},
{"QLA1240", 2, &fw1280ei_code01[0], &fw1280ei_length01,
&fw1280ei_addr01, &fw1280ei_version_str[0]},
{"QLA1280", 2, &fw1280ei_code01[0], &fw1280ei_length01,
&fw1280ei_addr01, &fw1280ei_version_str[0]},
{"QLA10160", 1, &fw12160i_code01[0], &fw12160i_length01,
&fw12160i_addr01, &fw12160i_version_str[0]},
{" ", 0}
};
static int qla1280_verbose = 1;
#if DEBUG_QLA1280
static int ql_debug_level = 1;
#define dprintk(level, format, a...) \
do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0)
#define qla1280_dump_buffer(level, buf, size) \
if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size)
#define qla1280_print_scsi_cmd(level, cmd) \
if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd)
#else
#define ql_debug_level 0
#define dprintk(level, format, a...) do{}while(0)
#define qla1280_dump_buffer(a, b, c) do{}while(0)
#define qla1280_print_scsi_cmd(a, b) do{}while(0)
#endif
#define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x);
#define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x);
#define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x);
#define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x);
static int qla1280_read_nvram(struct scsi_qla_host *ha)
{
uint16_t *wptr;
uint8_t chksum;
int cnt, i;
struct nvram *nv;
ENTER("qla1280_read_nvram");
if (driver_setup.no_nvram)
return 1;
printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no);
wptr = (uint16_t *)&ha->nvram;
nv = &ha->nvram;
chksum = 0;
for (cnt = 0; cnt < 3; cnt++) {
*wptr = qla1280_get_nvram_word(ha, cnt);
chksum += *wptr & 0xff;
chksum += (*wptr >> 8) & 0xff;
wptr++;
}
if (nv->id0 != 'I' || nv->id1 != 'S' ||
nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) {
dprintk(2, "Invalid nvram ID or version!\n");
chksum = 1;
} else {
for (; cnt < sizeof(struct nvram); cnt++) {
*wptr = qla1280_get_nvram_word(ha, cnt);
chksum += *wptr & 0xff;
chksum += (*wptr >> 8) & 0xff;
wptr++;
}
}
dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x"
" version %i\n", nv->id0, nv->id1, nv->id2, nv->id3,
nv->version);
if (chksum) {
if (!driver_setup.no_nvram)
printk(KERN_WARNING "scsi(%ld): Unable to identify or "
"validate NVRAM checksum, using default "
"settings\n", ha->host_no);
ha->nvram_valid = 0;
} else
ha->nvram_valid = 1;
/* The firmware interface is, um, interesting, in that the
* actual firmware image on the chip is little endian, thus,
* the process of taking that image to the CPU would end up
* little endian. However, the firmare interface requires it
* to be read a word (two bytes) at a time.
*
* The net result of this would be that the word (and
* doubleword) quantites in the firmware would be correct, but
* the bytes would be pairwise reversed. Since most of the
* firmware quantites are, in fact, bytes, we do an extra
* le16_to_cpu() in the firmware read routine.
*
* The upshot of all this is that the bytes in the firmware
* are in the correct places, but the 16 and 32 bit quantites
* are still in little endian format. We fix that up below by
* doing extra reverses on them */
nv->isp_parameter = cpu_to_le16(nv->isp_parameter);
nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w);
for(i = 0; i < MAX_BUSES; i++) {
nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout);
nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth);
}
dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n");
LEAVE("qla1280_read_nvram");
return chksum;
}
/**************************************************************************
* qla1280_info
* Return a string describing the driver.
**************************************************************************/
static const char *
qla1280_info(struct Scsi_Host *host)
{
static char qla1280_scsi_name_buffer[125];
char *bp;
struct scsi_qla_host *ha;
struct qla_boards *bdp;
bp = &qla1280_scsi_name_buffer[0];
ha = (struct scsi_qla_host *)host->hostdata;
bdp = &ql1280_board_tbl[ha->devnum];
memset(bp, 0, sizeof(qla1280_scsi_name_buffer));
sprintf (bp,
"QLogic %s PCI to SCSI Host Adapter\n"
" Firmware version: %2d.%02d.%02d, Driver version %s",
&bdp->name[0], bdp->fwver[0], bdp->fwver[1], bdp->fwver[2],
QLA1280_VERSION);
return bp;
}
/**************************************************************************
* qla1200_queuecommand
* Queue a command to the controller.
*
* Note:
* The mid-level driver tries to ensures that queuecommand never gets invoked
* concurrently with itself or the interrupt handler (although the
* interrupt handler may call this routine as part of request-completion
* handling). Unfortunely, it sometimes calls the scheduler in interrupt
* context which is a big NO! NO!.
**************************************************************************/
static int
qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *))
{
struct Scsi_Host *host = cmd->device->host;
struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
struct srb *sp = (struct srb *)&cmd->SCp;
int status;
cmd->scsi_done = fn;
sp->cmd = cmd;
sp->flags = 0;
qla1280_print_scsi_cmd(5, cmd);
#ifdef QLA_64BIT_PTR
/*
* Using 64 bit commands if the PCI bridge doesn't support it is a
* bit wasteful, however this should really only happen if one's
* PCI controller is completely broken, like the BCM1250. For
* sane hardware this is not an issue.
*/
status = qla1280_64bit_start_scsi(ha, sp);
#else
status = qla1280_32bit_start_scsi(ha, sp);
#endif
return status;
}
enum action {
ABORT_COMMAND,
ABORT_DEVICE,
DEVICE_RESET,
BUS_RESET,
ADAPTER_RESET,
FAIL
};
/* timer action for error action processor */
static void qla1280_error_wait_timeout(unsigned long __data)
{
struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data;
struct srb *sp = (struct srb *)CMD_SP(cmd);
complete(sp->wait);
}
static void qla1280_mailbox_timeout(unsigned long __data)
{
struct scsi_qla_host *ha = (struct scsi_qla_host *)__data;
struct device_reg __iomem *reg;
reg = ha->iobase;
ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0);
printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, "
"ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0],
RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus));
complete(ha->mailbox_wait);
}
/**************************************************************************
* qla1200_error_action
* The function will attempt to perform a specified error action and
* wait for the results (or time out).
*
* Input:
* cmd = Linux SCSI command packet of the command that cause the
* bus reset.
* action = error action to take (see action_t)
*
* Returns:
* SUCCESS or FAILED
*
* Note:
* Resetting the bus always succeeds - is has to, otherwise the
* kernel will panic! Try a surgical technique - sending a BUS
* DEVICE RESET message - on the offending target before pulling
* the SCSI bus reset line.
**************************************************************************/
static int
qla1280_error_action(struct scsi_cmnd *cmd, enum action action)
{
struct scsi_qla_host *ha;
int bus, target, lun;
struct srb *sp;
uint16_t data;
unsigned char *handle;
int result, i;
DECLARE_COMPLETION(wait);
struct timer_list timer;
ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata);
dprintk(4, "error_action %i, istatus 0x%04x\n", action,
RD_REG_WORD(&ha->iobase->istatus));
dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n",
RD_REG_WORD(&ha->iobase->host_cmd),
RD_REG_WORD(&ha->iobase->ictrl), jiffies);
ENTER("qla1280_error_action");
if (qla1280_verbose)
printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, "
"Handle=0x%p, action=0x%x\n",
ha->host_no, cmd, CMD_HANDLE(cmd), action);
if (cmd == NULL) {
printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL "
"si_Cmnd pointer, failing.\n");
LEAVE("qla1280_error_action");
return FAILED;
}
ha = (struct scsi_qla_host *)cmd->device->host->hostdata;
sp = (struct srb *)CMD_SP(cmd);
handle = CMD_HANDLE(cmd);
/* Check for pending interrupts. */
data = qla1280_debounce_register(&ha->iobase->istatus);
/*
* The io_request_lock is held when the reset handler is called, hence
* the interrupt handler cannot be running in parallel as it also
* grabs the lock. /Jes
*/
if (data & RISC_INT)
qla1280_isr(ha, &ha->done_q);
/*
* Determine the suggested action that the mid-level driver wants
* us to perform.
*/
if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) {
if(action == ABORT_COMMAND) {
/* we never got this command */
printk(KERN_INFO "qla1280: Aborting a NULL handle\n");
return SUCCESS; /* no action - we don't have command */
}
} else {
sp->wait = &wait;
}
bus = SCSI_BUS_32(cmd);
target = SCSI_TCN_32(cmd);
lun = SCSI_LUN_32(cmd);
/* Overloading result. Here it means the success or fail of the
* *issue* of the action. When we return from the routine, it must
* mean the actual success or fail of the action */
result = FAILED;
switch (action) {
case FAIL:
break;
case ABORT_COMMAND:
if ((sp->flags & SRB_ABORT_PENDING)) {
printk(KERN_WARNING
"scsi(): Command has a pending abort "
"message - ABORT_PENDING.\n");
/* This should technically be impossible since we
* now wait for abort completion */
break;
}
for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
if (sp == ha->outstanding_cmds[i]) {
dprintk(1, "qla1280: RISC aborting command\n");
if (qla1280_abort_command(ha, sp, i) == 0)
result = SUCCESS;
else {
/*
* Since we don't know what might
* have happend to the command, it
* is unsafe to remove it from the
* device's queue at this point.
* Wait and let the escalation
* process take care of it.
*/
printk(KERN_WARNING
"scsi(%li:%i:%i:%i): Unable"
" to abort command!\n",
ha->host_no, bus, target, lun);
}
}
}
break;
case ABORT_DEVICE:
ha->flags.in_reset = 1;
if (qla1280_verbose)