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linux/drivers/scsi/qla1280.c
James Bottomley d3f46f39b7 [SCSI] remove use_sg_chaining 
With the sg table code, every SCSI driver is now either chain capable
or broken (or has sg_tablesize set so chaining is never activated), so
there's no need to have a check in the host template.

Also tidy up the code by moving the scatterlist size defines into the
SCSI includes and permit the last entry of the scatterlist pools not
to be a power of two.
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-01-30 13:14:02 -06:00

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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 "3.26"
/*****************************************************************************
Revision History:
Rev 3.26, January 16, 2006 Jes Sorensen
- Ditch all < 2.6 support
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 IRQF_DISABLED, 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/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/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 <linux/dma-mapping.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>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_tcq.h>
#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
#include <asm/sn/io.h>
#endif
#if LINUX_VERSION_CODE < 0x020600
#error "Kernels older than 2.6.0 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"
#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 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 *);
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) SCSI_SENSE_BUFFERSIZE
#define CMD_RESULT(Cmnd) Cmnd->result
#define CMD_HANDLE(Cmnd) Cmnd->host_scribble
#define CMD_REQUEST(Cmnd) Cmnd->request->cmd
#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},
{PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020,
PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1},
{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(&reg->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(&reg->ictrl), RD_REG_WORD(&reg->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_ONSTACK(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:
if (qla1280_verbose)
printk(KERN_INFO
"scsi(%ld:%d:%d:%d): Queueing abort device "
"command.\n", ha->host_no, bus, target, lun);
if (qla1280_abort_device(ha, bus, target, lun) == 0)
result = SUCCESS;
break;
case DEVICE_RESET:
if (qla1280_verbose)
printk(KERN_INFO
"scsi(%ld:%d:%d:%d): Queueing device reset "
"command.\n", ha->host_no, bus, target, lun);
if (qla1280_device_reset(ha, bus, target) == 0)
result = SUCCESS;
break;
case BUS_RESET:
if (qla1280_verbose)
printk(KERN_INFO "qla1280(%ld:%d): Issued bus "
"reset.\n", ha->host_no, bus);
if (qla1280_bus_reset(ha, bus) == 0)
result = SUCCESS;
break;
case ADAPTER_RESET:
default:
if (qla1280_verbose) {
printk(KERN_INFO
"scsi(%ld): Issued ADAPTER RESET\n",
ha->host_no);
printk(KERN_INFO "scsi(%ld): I/O processing will "
"continue automatically\n", ha->host_no);
}
ha->flags.reset_active = 1;
/*
* We restarted all of the commands automatically, so the
* mid-level code can expect completions momentitarily.
*/
if (qla1280_abort_isp(ha) == 0)
result = SUCCESS;
ha->flags.reset_active = 0;
}
if (!list_empty(&ha->done_q))
qla1280_done(ha);
/* If we didn't manage to issue the action, or we have no
* command to wait for, exit here */
if (result == FAILED || handle == NULL ||
handle == (unsigned char *)INVALID_HANDLE) {
/*
* Clear completion queue to avoid qla1280_done() trying
* to complete the command at a later stage after we
* have exited the current context
*/
sp->wait = NULL;
goto leave;
}
/* set up a timer just in case we're really jammed */
init_timer(&timer);
timer.expires = jiffies + 4*HZ;
timer.data = (unsigned long)cmd;
timer.function = qla1280_error_wait_timeout;
add_timer(&timer);
/* wait for the action to complete (or the timer to expire) */
spin_unlock_irq(ha->host->host_lock);
wait_for_completion(&wait);
del_timer_sync(&timer);
spin_lock_irq(ha->host->host_lock);
sp->wait = NULL;
/* the only action we might get a fail for is abort */
if (action == ABORT_COMMAND) {
if(sp->flags & SRB_ABORTED)
result = SUCCESS;
else
result = FAILED;
}
leave:
dprintk(1, "RESET returning %d\n", result);
LEAVE("qla1280_error_action");
return result;
}
/**************************************************************************
* qla1280_abort
* Abort the specified SCSI command(s).
**************************************************************************/
static int
qla1280_eh_abort(struct scsi_cmnd * cmd)
{
int rc;
spin_lock_irq(cmd->device->host->host_lock);
rc = qla1280_error_action(cmd, ABORT_COMMAND);
spin_unlock_irq(cmd->device->host->host_lock);
return rc;
}
/**************************************************************************
* qla1280_device_reset
* Reset the specified SCSI device
**************************************************************************/
static int
qla1280_eh_device_reset(struct scsi_cmnd *cmd)
{
int rc;
spin_lock_irq(cmd->device->host->host_lock);
rc = qla1280_error_action(cmd, DEVICE_RESET);
spin_unlock_irq(cmd->device->host->host_lock);
return rc;
}
/**************************************************************************
* qla1280_bus_reset
* Reset the specified bus.
**************************************************************************/
static int
qla1280_eh_bus_reset(struct scsi_cmnd *cmd)
{
int rc;
spin_lock_irq(cmd->device->host->host_lock);
rc = qla1280_error_action(cmd, BUS_RESET);
spin_unlock_irq(cmd->device->host->host_lock);
return rc;
}
/**************************************************************************
* qla1280_adapter_reset
* Reset the specified adapter (both channels)
**************************************************************************/
static int
qla1280_eh_adapter_reset(struct scsi_cmnd *cmd)
{
int rc;
spin_lock_irq(cmd->device->host->host_lock);
rc = qla1280_error_action(cmd, ADAPTER_RESET);
spin_unlock_irq(cmd->device->host->host_lock);
return rc;
}
static int
qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev,
sector_t capacity, int geom[])
{
int heads, sectors, cylinders;
heads = 64;
sectors = 32;
cylinders = (unsigned long)capacity / (heads * sectors);
if (cylinders > 1024) {
heads = 255;
sectors = 63;
cylinders = (unsigned long)capacity / (heads * sectors);
/* if (cylinders > 1023)
cylinders = 1023; */
}
geom[0] = heads;
geom[1] = sectors;
geom[2] = cylinders;
return 0;
}
/* disable risc and host interrupts */
static inline void
qla1280_disable_intrs(struct scsi_qla_host *ha)
{
WRT_REG_WORD(&ha->iobase->ictrl, 0);
RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
}
/* enable risc and host interrupts */
static inline void
qla1280_enable_intrs(struct scsi_qla_host *ha)
{
WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC));
RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */
}
/**************************************************************************
* qla1280_intr_handler
* Handles the H/W interrupt
**************************************************************************/
static irqreturn_t
qla1280_intr_handler(int irq, void *dev_id)
{
struct scsi_qla_host *ha;
struct device_reg __iomem *reg;
u16 data;
int handled = 0;
ENTER_INTR ("qla1280_intr_handler");
ha = (struct scsi_qla_host *)dev_id;
spin_lock(ha->host->host_lock);
ha->isr_count++;
reg = ha->iobase;
qla1280_disable_intrs(ha);
data = qla1280_debounce_register(&reg->istatus);
/* Check for pending interrupts. */
if (data & RISC_INT) {
qla1280_isr(ha, &ha->done_q);
handled = 1;
}
if (!list_empty(&ha->done_q))
qla1280_done(ha);
spin_unlock(ha->host->host_lock);
qla1280_enable_intrs(ha);
LEAVE_INTR("qla1280_intr_handler");
return IRQ_RETVAL(handled);
}
static int
qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target)
{
uint8_t mr;
uint16_t mb[MAILBOX_REGISTER_COUNT];
struct nvram *nv;
int status, lun;
nv = &ha->nvram;
mr = BIT_3 | BIT_2 | BIT_1 | BIT_0;
/* Set Target Parameters. */
mb[0] = MBC_SET_TARGET_PARAMETERS;
mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8;
mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9;
mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10;
mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11;
mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12;
mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13;
mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14;
mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15;
if (IS_ISP1x160(ha)) {
mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5;
mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8);
mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) |
nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width;
mr |= BIT_6;
} else {
mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8);
}
mb[3] |= nv->bus[bus].target[target].sync_period;
status = qla1280_mailbox_command(ha, mr, mb);
/* Set Device Queue Parameters. */
for (lun = 0; lun < MAX_LUNS; lun++) {
mb[0] = MBC_SET_DEVICE_QUEUE;
mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
mb[1] |= lun;
mb[2] = nv->bus[bus].max_queue_depth;
mb[3] = nv->bus[bus].target[target].execution_throttle;
status |= qla1280_mailbox_command(ha, 0x0f, mb);
}
if (status)
printk(KERN_WARNING "scsi(%ld:%i:%i): "
"qla1280_set_target_parameters() failed\n",
ha->host_no, bus, target);
return status;
}
/**************************************************************************
* qla1280_slave_configure
*
* Description:
* Determines the queue depth for a given device. There are two ways
* a queue depth can be obtained for a tagged queueing device. One
* way is the default queue depth which is determined by whether
* If it is defined, then it is used
* as the default queue depth. Otherwise, we use either 4 or 8 as the
* default queue depth (dependent on the number of hardware SCBs).
**************************************************************************/
static int
qla1280_slave_configure(struct scsi_device *device)
{
struct scsi_qla_host *ha;
int default_depth = 3;
int bus = device->channel;
int target = device->id;
int status = 0;
struct nvram *nv;
unsigned long flags;
ha = (struct scsi_qla_host *)device->host->hostdata;
nv = &ha->nvram;
if (qla1280_check_for_dead_scsi_bus(ha, bus))
return 1;
if (device->tagged_supported &&
(ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) {
scsi_adjust_queue_depth(device, MSG_ORDERED_TAG,
ha->bus_settings[bus].hiwat);
} else {
scsi_adjust_queue_depth(device, 0, default_depth);
}
nv->bus[bus].target[target].parameter.enable_sync = device->sdtr;
nv->bus[bus].target[target].parameter.enable_wide = device->wdtr;
nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr;
if (driver_setup.no_sync ||
(driver_setup.sync_mask &&
(~driver_setup.sync_mask & (1 << target))))
nv->bus[bus].target[target].parameter.enable_sync = 0;
if (driver_setup.no_wide ||
(driver_setup.wide_mask &&
(~driver_setup.wide_mask & (1 << target))))
nv->bus[bus].target[target].parameter.enable_wide = 0;
if (IS_ISP1x160(ha)) {
if (driver_setup.no_ppr ||
(driver_setup.ppr_mask &&
(~driver_setup.ppr_mask & (1 << target))))
nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0;
}
spin_lock_irqsave(ha->host->host_lock, flags);
if (nv->bus[bus].target[target].parameter.enable_sync)
status = qla1280_set_target_parameters(ha, bus, target);
qla1280_get_target_parameters(ha, device);
spin_unlock_irqrestore(ha->host->host_lock, flags);
return status;
}
/*
* qla1280_done
* Process completed commands.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla1280_done(struct scsi_qla_host *ha)
{
struct srb *sp;
struct list_head *done_q;
int bus, target, lun;
struct scsi_cmnd *cmd;
ENTER("qla1280_done");
done_q = &ha->done_q;
while (!list_empty(done_q)) {
sp = list_entry(done_q->next, struct srb, list);
list_del(&sp->list);
cmd = sp->cmd;
bus = SCSI_BUS_32(cmd);
target = SCSI_TCN_32(cmd);
lun = SCSI_LUN_32(cmd);
switch ((CMD_RESULT(cmd) >> 16)) {
case DID_RESET:
/* Issue marker command. */
qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
break;
case DID_ABORT:
sp->flags &= ~SRB_ABORT_PENDING;
sp->flags |= SRB_ABORTED;
if (sp->flags & SRB_TIMEOUT)
CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16;
break;
default:
break;
}
/* Release memory used for this I/O */
scsi_dma_unmap(cmd);
/* Call the mid-level driver interrupt handler */
CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE;
ha->actthreads--;
(*(cmd)->scsi_done)(cmd);
if(sp->wait != NULL)
complete(sp->wait);
}
LEAVE("qla1280_done");
}
/*
* Translates a ISP error to a Linux SCSI error
*/
static int
qla1280_return_status(struct response * sts, struct scsi_cmnd *cp)
{
int host_status = DID_ERROR;
uint16_t comp_status = le16_to_cpu(sts->comp_status);
uint16_t state_flags = le16_to_cpu(sts->state_flags);
uint32_t residual_length = le32_to_cpu(sts->residual_length);
uint16_t scsi_status = le16_to_cpu(sts->scsi_status);
#if DEBUG_QLA1280_INTR
static char *reason[] = {
"DID_OK",
"DID_NO_CONNECT",
"DID_BUS_BUSY",
"DID_TIME_OUT",
"DID_BAD_TARGET",
"DID_ABORT",
"DID_PARITY",
"DID_ERROR",
"DID_RESET",
"DID_BAD_INTR"
};
#endif /* DEBUG_QLA1280_INTR */
ENTER("qla1280_return_status");
#if DEBUG_QLA1280_INTR
/*
dprintk(1, "qla1280_return_status: compl status = 0x%04x\n",
comp_status);
*/
#endif
switch (comp_status) {
case CS_COMPLETE:
host_status = DID_OK;
break;
case CS_INCOMPLETE:
if (!(state_flags & SF_GOT_BUS))
host_status = DID_NO_CONNECT;
else if (!(state_flags & SF_GOT_TARGET))
host_status = DID_BAD_TARGET;
else if (!(state_flags & SF_SENT_CDB))
host_status = DID_ERROR;
else if (!(state_flags & SF_TRANSFERRED_DATA))
host_status = DID_ERROR;
else if (!(state_flags & SF_GOT_STATUS))
host_status = DID_ERROR;
else if (!(state_flags & SF_GOT_SENSE))
host_status = DID_ERROR;
break;
case CS_RESET:
host_status = DID_RESET;
break;
case CS_ABORTED:
host_status = DID_ABORT;
break;
case CS_TIMEOUT:
host_status = DID_TIME_OUT;
break;
case CS_DATA_OVERRUN:
dprintk(2, "Data overrun 0x%x\n", residual_length);
dprintk(2, "qla1280_return_status: response packet data\n");
qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE);
host_status = DID_ERROR;
break;
case CS_DATA_UNDERRUN:
if ((scsi_bufflen(cp) - residual_length) <
cp->underflow) {
printk(KERN_WARNING
"scsi: Underflow detected - retrying "
"command.\n");
host_status = DID_ERROR;
} else {
scsi_set_resid(cp, residual_length);
host_status = DID_OK;
}
break;
default:
host_status = DID_ERROR;
break;
}
#if DEBUG_QLA1280_INTR
dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n",
reason[host_status], scsi_status);
#endif
LEAVE("qla1280_return_status");
return (scsi_status & 0xff) | (host_status << 16);
}
/****************************************************************************/
/* QLogic ISP1280 Hardware Support Functions. */
/****************************************************************************/
/*
* qla1280_initialize_adapter
* Initialize board.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
static int __devinit
qla1280_initialize_adapter(struct scsi_qla_host *ha)
{
struct device_reg __iomem *reg;
int status;
int bus;
unsigned long flags;
ENTER("qla1280_initialize_adapter");
/* Clear adapter flags. */
ha->flags.online = 0;
ha->flags.disable_host_adapter = 0;
ha->flags.reset_active = 0;
ha->flags.abort_isp_active = 0;
#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
if (ia64_platform_is("sn2")) {
printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
"dual channel lockup workaround\n", ha->host_no);
ha->flags.use_pci_vchannel = 1;
driver_setup.no_nvram = 1;
}
#endif
/* TODO: implement support for the 1040 nvram format */
if (IS_ISP1040(ha))
driver_setup.no_nvram = 1;
dprintk(1, "Configure PCI space for adapter...\n");
reg = ha->iobase;
/* Insure mailbox registers are free. */
WRT_REG_WORD(&reg->semaphore, 0);
WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
WRT_REG_WORD(&reg->host_cmd, HC_CLR_HOST_INT);
RD_REG_WORD(&reg->host_cmd);
if (qla1280_read_nvram(ha)) {
dprintk(2, "qla1280_initialize_adapter: failed to read "
"NVRAM\n");
}
/*
* It's necessary to grab the spin here as qla1280_mailbox_command
* needs to be able to drop the lock unconditionally to wait
* for completion.
*/
spin_lock_irqsave(ha->host->host_lock, flags);
status = qla1280_load_firmware(ha);
if (status) {
printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n",
ha->host_no);
goto out;
}
/* Setup adapter based on NVRAM parameters. */
dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no);
qla1280_nvram_config(ha);
if (ha->flags.disable_host_adapter) {
status = 1;
goto out;
}
status = qla1280_init_rings(ha);
if (status)
goto out;
/* Issue SCSI reset, if we can't reset twice then bus is dead */
for (bus = 0; bus < ha->ports; bus++) {
if (!ha->bus_settings[bus].disable_scsi_reset &&
qla1280_bus_reset(ha, bus) &&
qla1280_bus_reset(ha, bus))
ha->bus_settings[bus].scsi_bus_dead = 1;
}
ha->flags.online = 1;
out:
spin_unlock_irqrestore(ha->host->host_lock, flags);
if (status)
dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n");
LEAVE("qla1280_initialize_adapter");
return status;
}
/*
* Chip diagnostics
* Test chip for proper operation.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success.
*/
static int
qla1280_chip_diag(struct scsi_qla_host *ha)
{
uint16_t mb[MAILBOX_REGISTER_COUNT];
struct device_reg __iomem *reg = ha->iobase;
int status = 0;
int cnt;
uint16_t data;
dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", &reg->id_l);
dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no);
/* Soft reset chip and wait for it to finish. */
WRT_REG_WORD(&reg->ictrl, ISP_RESET);
/*
* We can't do a traditional PCI write flush here by reading
* back the register. The card will not respond once the reset
* is in action and we end up with a machine check exception
* instead. Nothing to do but wait and hope for the best.
* A portable pci_write_flush(pdev) call would be very useful here.
*/
udelay(20);
data = qla1280_debounce_register(&reg->ictrl);
/*
* Yet another QLogic gem ;-(
*/
for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) {
udelay(5);
data = RD_REG_WORD(&reg->ictrl);
}
if (!cnt)
goto fail;
/* Reset register cleared by chip reset. */
dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n");
WRT_REG_WORD(&reg->cfg_1, 0);
/* Reset RISC and disable BIOS which
allows RISC to execute out of RAM. */
WRT_REG_WORD(&reg->host_cmd, HC_RESET_RISC |
HC_RELEASE_RISC | HC_DISABLE_BIOS);
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
data = qla1280_debounce_register(&reg->mailbox0);
/*
* I *LOVE* this code!
*/
for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) {
udelay(5);
data = RD_REG_WORD(&reg->mailbox0);
}
if (!cnt)
goto fail;
/* Check product ID of chip */
dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n");
if (RD_REG_WORD(&reg->mailbox1) != PROD_ID_1 ||
(RD_REG_WORD(&reg->mailbox2) != PROD_ID_2 &&
RD_REG_WORD(&reg->mailbox2) != PROD_ID_2a) ||
RD_REG_WORD(&reg->mailbox3) != PROD_ID_3 ||
RD_REG_WORD(&reg->mailbox4) != PROD_ID_4) {
printk(KERN_INFO "qla1280: Wrong product ID = "
"0x%x,0x%x,0x%x,0x%x\n",
RD_REG_WORD(&reg->mailbox1),
RD_REG_WORD(&reg->mailbox2),
RD_REG_WORD(&reg->mailbox3),
RD_REG_WORD(&reg->mailbox4));
goto fail;
}
/*
* Enable ints early!!!
*/
qla1280_enable_intrs(ha);
dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n");
/* Wrap Incoming Mailboxes Test. */
mb[0] = MBC_MAILBOX_REGISTER_TEST;
mb[1] = 0xAAAA;
mb[2] = 0x5555;
mb[3] = 0xAA55;
mb[4] = 0x55AA;
mb[5] = 0xA5A5;
mb[6] = 0x5A5A;
mb[7] = 0x2525;
status = qla1280_mailbox_command(ha, 0xff, mb);
if (status)
goto fail;
if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 ||
mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A ||
mb[7] != 0x2525) {
printk(KERN_INFO "qla1280: Failed mbox check\n");
goto fail;
}
dprintk(3, "qla1280_chip_diag: exiting normally\n");
return 0;
fail:
dprintk(2, "qla1280_chip_diag: **** FAILED ****\n");
return status;
}
static int
qla1280_load_firmware_pio(struct scsi_qla_host *ha)
{
uint16_t risc_address, *risc_code_address, risc_code_size;
uint16_t mb[MAILBOX_REGISTER_COUNT], i;
int err;
/* Load RISC code. */
risc_address = *ql1280_board_tbl[ha->devnum].fwstart;
risc_code_address = ql1280_board_tbl[ha->devnum].fwcode;
risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
for (i = 0; i < risc_code_size; i++) {
mb[0] = MBC_WRITE_RAM_WORD;
mb[1] = risc_address + i;
mb[2] = risc_code_address[i];
err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb);
if (err) {
printk(KERN_ERR "scsi(%li): Failed to load firmware\n",
ha->host_no);
return err;
}
}
return 0;
}
#define DUMP_IT_BACK 0 /* for debug of RISC loading */
static int
qla1280_load_firmware_dma(struct scsi_qla_host *ha)
{
uint16_t risc_address, *risc_code_address, risc_code_size;
uint16_t mb[MAILBOX_REGISTER_COUNT], cnt;
int err = 0, num, i;
#if DUMP_IT_BACK
uint8_t *sp, *tbuf;
dma_addr_t p_tbuf;
tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf);
if (!tbuf)
return -ENOMEM;
#endif
/* Load RISC code. */
risc_address = *ql1280_board_tbl[ha->devnum].fwstart;
risc_code_address = ql1280_board_tbl[ha->devnum].fwcode;
risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen;
dprintk(1, "%s: DMA RISC code (%i) words\n",
__FUNCTION__, risc_code_size);
num = 0;
while (risc_code_size > 0) {
int warn __attribute__((unused)) = 0;
cnt = 2000 >> 1;
if (cnt > risc_code_size)
cnt = risc_code_size;
dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p),"
"%d,%d(0x%x)\n",
risc_code_address, cnt, num, risc_address);
for(i = 0; i < cnt; i++)
((__le16 *)ha->request_ring)[i] =
cpu_to_le16(risc_code_address[i]);
mb[0] = MBC_LOAD_RAM;
mb[1] = risc_address;
mb[4] = cnt;
mb[3] = ha->request_dma & 0xffff;
mb[2] = (ha->request_dma >> 16) & 0xffff;
mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n",
__FUNCTION__, mb[0],
(void *)(long)ha->request_dma,
mb[6], mb[7], mb[2], mb[3]);
err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
BIT_1 | BIT_0, mb);
if (err) {
printk(KERN_ERR "scsi(%li): Failed to load partial "
"segment of f\n", ha->host_no);
goto out;
}
#if DUMP_IT_BACK
mb[0] = MBC_DUMP_RAM;
mb[1] = risc_address;
mb[4] = cnt;
mb[3] = p_tbuf & 0xffff;
mb[2] = (p_tbuf >> 16) & 0xffff;
mb[7] = pci_dma_hi32(p_tbuf) & 0xffff;
mb[6] = pci_dma_hi32(p_tbuf) >> 16;
err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 |
BIT_1 | BIT_0, mb);
if (err) {
printk(KERN_ERR
"Failed to dump partial segment of f/w\n");
goto out;
}
sp = (uint8_t *)ha->request_ring;
for (i = 0; i < (cnt << 1); i++) {
if (tbuf[i] != sp[i] && warn++ < 10) {
printk(KERN_ERR "%s: FW compare error @ "
"byte(0x%x) loop#=%x\n",
__FUNCTION__, i, num);
printk(KERN_ERR "%s: FWbyte=%x "
"FWfromChip=%x\n",
__FUNCTION__, sp[i], tbuf[i]);
/*break; */
}
}
#endif
risc_address += cnt;
risc_code_size = risc_code_size - cnt;
risc_code_address = risc_code_address + cnt;
num++;
}
out:
#if DUMP_IT_BACK
pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf);
#endif
return err;
}
static int
qla1280_start_firmware(struct scsi_qla_host *ha)
{
uint16_t mb[MAILBOX_REGISTER_COUNT];
int err;
dprintk(1, "%s: Verifying checksum of loaded RISC code.\n",
__FUNCTION__);
/* Verify checksum of loaded RISC code. */
mb[0] = MBC_VERIFY_CHECKSUM;
/* mb[1] = ql12_risc_code_addr01; */
mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
if (err) {
printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no);
return err;
}
/* Start firmware execution. */
dprintk(1, "%s: start firmware running.\n", __FUNCTION__);
mb[0] = MBC_EXECUTE_FIRMWARE;
mb[1] = *ql1280_board_tbl[ha->devnum].fwstart;
err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
if (err) {
printk(KERN_ERR "scsi(%li): Failed to start firmware\n",
ha->host_no);
}
return err;
}
static int
qla1280_load_firmware(struct scsi_qla_host *ha)
{
int err;
err = qla1280_chip_diag(ha);
if (err)
goto out;
if (IS_ISP1040(ha))
err = qla1280_load_firmware_pio(ha);
else
err = qla1280_load_firmware_dma(ha);
if (err)
goto out;
err = qla1280_start_firmware(ha);
out:
return err;
}
/*
* Initialize rings
*
* Input:
* ha = adapter block pointer.
* ha->request_ring = request ring virtual address
* ha->response_ring = response ring virtual address
* ha->request_dma = request ring physical address
* ha->response_dma = response ring physical address
*
* Returns:
* 0 = success.
*/
static int
qla1280_init_rings(struct scsi_qla_host *ha)
{
uint16_t mb[MAILBOX_REGISTER_COUNT];
int status = 0;
ENTER("qla1280_init_rings");
/* Clear outstanding commands array. */
memset(ha->outstanding_cmds, 0,
sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS);
/* Initialize request queue. */
ha->request_ring_ptr = ha->request_ring;
ha->req_ring_index = 0;
ha->req_q_cnt = REQUEST_ENTRY_CNT;
/* mb[0] = MBC_INIT_REQUEST_QUEUE; */
mb[0] = MBC_INIT_REQUEST_QUEUE_A64;
mb[1] = REQUEST_ENTRY_CNT;
mb[3] = ha->request_dma & 0xffff;
mb[2] = (ha->request_dma >> 16) & 0xffff;
mb[4] = 0;
mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff;
mb[6] = pci_dma_hi32(ha->request_dma) >> 16;
if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 |
BIT_3 | BIT_2 | BIT_1 | BIT_0,
&mb[0]))) {
/* Initialize response queue. */
ha->response_ring_ptr = ha->response_ring;
ha->rsp_ring_index = 0;
/* mb[0] = MBC_INIT_RESPONSE_QUEUE; */
mb[0] = MBC_INIT_RESPONSE_QUEUE_A64;
mb[1] = RESPONSE_ENTRY_CNT;
mb[3] = ha->response_dma & 0xffff;
mb[2] = (ha->response_dma >> 16) & 0xffff;
mb[5] = 0;
mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff;
mb[6] = pci_dma_hi32(ha->response_dma) >> 16;
status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 |
BIT_3 | BIT_2 | BIT_1 | BIT_0,
&mb[0]);
}
if (status)
dprintk(2, "qla1280_init_rings: **** FAILED ****\n");
LEAVE("qla1280_init_rings");
return status;
}
static void
qla1280_print_settings(struct nvram *nv)
{
dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n",
nv->bus[0].config_1.initiator_id);
dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n",
nv->bus[1].config_1.initiator_id);
dprintk(1, "qla1280 : bus reset delay[0]=%d\n",
nv->bus[0].bus_reset_delay);
dprintk(1, "qla1280 : bus reset delay[1]=%d\n",
nv->bus[1].bus_reset_delay);
dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count);
dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay);
dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count);
dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay);
dprintk(1, "qla1280 : async data setup time[0]=%d\n",
nv->bus[0].config_2.async_data_setup_time);
dprintk(1, "qla1280 : async data setup time[1]=%d\n",
nv->bus[1].config_2.async_data_setup_time);
dprintk(1, "qla1280 : req/ack active negation[0]=%d\n",
nv->bus[0].config_2.req_ack_active_negation);
dprintk(1, "qla1280 : req/ack active negation[1]=%d\n",
nv->bus[1].config_2.req_ack_active_negation);
dprintk(1, "qla1280 : data line active negation[0]=%d\n",
nv->bus[0].config_2.data_line_active_negation);
dprintk(1, "qla1280 : data line active negation[1]=%d\n",
nv->bus[1].config_2.data_line_active_negation);
dprintk(1, "qla1280 : disable loading risc code=%d\n",
nv->cntr_flags_1.disable_loading_risc_code);
dprintk(1, "qla1280 : enable 64bit addressing=%d\n",
nv->cntr_flags_1.enable_64bit_addressing);
dprintk(1, "qla1280 : selection timeout limit[0]=%d\n",
nv->bus[0].selection_timeout);
dprintk(1, "qla1280 : selection timeout limit[1]=%d\n",
nv->bus[1].selection_timeout);
dprintk(1, "qla1280 : max queue depth[0]=%d\n",
nv->bus[0].max_queue_depth);
dprintk(1, "qla1280 : max queue depth[1]=%d\n",
nv->bus[1].max_queue_depth);
}
static void
qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target)
{
struct nvram *nv = &ha->nvram;
nv->bus[bus].target[target].parameter.renegotiate_on_error = 1;
nv->bus[bus].target[target].parameter.auto_request_sense = 1;
nv->bus[bus].target[target].parameter.tag_queuing = 1;
nv->bus[bus].target[target].parameter.enable_sync = 1;
#if 1 /* Some SCSI Processors do not seem to like this */
nv->bus[bus].target[target].parameter.enable_wide = 1;
#endif
nv->bus[bus].target[target].execution_throttle =
nv->bus[bus].max_queue_depth - 1;
nv->bus[bus].target[target].parameter.parity_checking = 1;
nv->bus[bus].target[target].parameter.disconnect_allowed = 1;
if (IS_ISP1x160(ha)) {
nv->bus[bus].target[target].flags.flags1x160.device_enable = 1;
nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e;
nv->bus[bus].target[target].sync_period = 9;
nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1;
nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2;
nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1;
} else {
nv->bus[bus].target[target].flags.flags1x80.device_enable = 1;
nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12;
nv->bus[bus].target[target].sync_period = 10;
}
}
static void
qla1280_set_defaults(struct scsi_qla_host *ha)
{
struct nvram *nv = &ha->nvram;
int bus, target;
dprintk(1, "Using defaults for NVRAM: \n");
memset(nv, 0, sizeof(struct nvram));
/* nv->cntr_flags_1.disable_loading_risc_code = 1; */
nv->firmware_feature.f.enable_fast_posting = 1;
nv->firmware_feature.f.disable_synchronous_backoff = 1;
nv->termination.scsi_bus_0_control = 3;
nv->termination.scsi_bus_1_control = 3;
nv->termination.auto_term_support = 1;
/*
* Set default FIFO magic - What appropriate values would be here
* is unknown. This is what I have found testing with 12160s.
*
* Now, I would love the magic decoder ring for this one, the
* header file provided by QLogic seems to be bogus or incomplete
* at best.
*/
nv->isp_config.burst_enable = 1;
if (IS_ISP1040(ha))
nv->isp_config.fifo_threshold |= 3;
else
nv->isp_config.fifo_threshold |= 4;
if (IS_ISP1x160(ha))
nv->isp_parameter = 0x01; /* fast memory enable */
for (bus = 0; bus < MAX_BUSES; bus++) {
nv->bus[bus].config_1.initiator_id = 7;
nv->bus[bus].config_2.req_ack_active_negation = 1;
nv->bus[bus].config_2.data_line_active_negation = 1;
nv->bus[bus].selection_timeout = 250;
nv->bus[bus].max_queue_depth = 256;
if (IS_ISP1040(ha)) {
nv->bus[bus].bus_reset_delay = 3;
nv->bus[bus].config_2.async_data_setup_time = 6;
nv->bus[bus].retry_delay = 1;
} else {
nv->bus[bus].bus_reset_delay = 5;
nv->bus[bus].config_2.async_data_setup_time = 8;
}
for (target = 0; target < MAX_TARGETS; target++)
qla1280_set_target_defaults(ha, bus, target);
}
}
static int
qla1280_config_target(struct scsi_qla_host *ha, int bus, int target)
{
struct nvram *nv = &ha->nvram;
uint16_t mb[MAILBOX_REGISTER_COUNT];
int status, lun;
uint16_t flag;
/* Set Target Parameters. */
mb[0] = MBC_SET_TARGET_PARAMETERS;
mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
/*
* Do not enable sync and ppr for the initial INQUIRY run. We
* enable this later if we determine the target actually
* supports it.
*/
mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE
| TP_WIDE | TP_PARITY | TP_DISCONNECT);
if (IS_ISP1x160(ha))
mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8;
else
mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8;
mb[3] |= nv->bus[bus].target[target].sync_period;
status = qla1280_mailbox_command(ha, 0x0f, mb);
/* Save Tag queuing enable flag. */
flag = (BIT_0 << target) & mb[0];
if (nv->bus[bus].target[target].parameter.tag_queuing)
ha->bus_settings[bus].qtag_enables |= flag;
/* Save Device enable flag. */
if (IS_ISP1x160(ha)) {
if (nv->bus[bus].target[target].flags.flags1x160.device_enable)
ha->bus_settings[bus].device_enables |= flag;
ha->bus_settings[bus].lun_disables |= 0;
} else {
if (nv->bus[bus].target[target].flags.flags1x80.device_enable)
ha->bus_settings[bus].device_enables |= flag;
/* Save LUN disable flag. */
if (nv->bus[bus].target[target].flags.flags1x80.lun_disable)
ha->bus_settings[bus].lun_disables |= flag;
}
/* Set Device Queue Parameters. */
for (lun = 0; lun < MAX_LUNS; lun++) {
mb[0] = MBC_SET_DEVICE_QUEUE;
mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8);
mb[1] |= lun;
mb[2] = nv->bus[bus].max_queue_depth;
mb[3] = nv->bus[bus].target[target].execution_throttle;
status |= qla1280_mailbox_command(ha, 0x0f, mb);
}
return status;
}
static int
qla1280_config_bus(struct scsi_qla_host *ha, int bus)
{
struct nvram *nv = &ha->nvram;
uint16_t mb[MAILBOX_REGISTER_COUNT];
int target, status;
/* SCSI Reset Disable. */
ha->bus_settings[bus].disable_scsi_reset =
nv->bus[bus].config_1.scsi_reset_disable;
/* Initiator ID. */
ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id;
mb[0] = MBC_SET_INITIATOR_ID;
mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 :
ha->bus_settings[bus].id;
status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
/* Reset Delay. */
ha->bus_settings[bus].bus_reset_delay =
nv->bus[bus].bus_reset_delay;
/* Command queue depth per device. */
ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1;
/* Set target parameters. */
for (target = 0; target < MAX_TARGETS; target++)
status |= qla1280_config_target(ha, bus, target);
return status;
}
static int
qla1280_nvram_config(struct scsi_qla_host *ha)
{
struct device_reg __iomem *reg = ha->iobase;
struct nvram *nv = &ha->nvram;
int bus, target, status = 0;
uint16_t mb[MAILBOX_REGISTER_COUNT];
ENTER("qla1280_nvram_config");
if (ha->nvram_valid) {
/* Always force AUTO sense for LINUX SCSI */
for (bus = 0; bus < MAX_BUSES; bus++)
for (target = 0; target < MAX_TARGETS; target++) {
nv->bus[bus].target[target].parameter.
auto_request_sense = 1;
}
} else {
qla1280_set_defaults(ha);
}
qla1280_print_settings(nv);
/* Disable RISC load of firmware. */
ha->flags.disable_risc_code_load =
nv->cntr_flags_1.disable_loading_risc_code;
if (IS_ISP1040(ha)) {
uint16_t hwrev, cfg1, cdma_conf, ddma_conf;
hwrev = RD_REG_WORD(&reg->cfg_0) & ISP_CFG0_HWMSK;
cfg1 = RD_REG_WORD(&reg->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6);
cdma_conf = RD_REG_WORD(&reg->cdma_cfg);
ddma_conf = RD_REG_WORD(&reg->ddma_cfg);
/* Busted fifo, says mjacob. */
if (hwrev != ISP_CFG0_1040A)
cfg1 |= nv->isp_config.fifo_threshold << 4;
cfg1 |= nv->isp_config.burst_enable << 2;
WRT_REG_WORD(&reg->cfg_1, cfg1);
WRT_REG_WORD(&reg->cdma_cfg, cdma_conf | CDMA_CONF_BENAB);
WRT_REG_WORD(&reg->ddma_cfg, cdma_conf | DDMA_CONF_BENAB);
} else {
uint16_t cfg1, term;
/* Set ISP hardware DMA burst */
cfg1 = nv->isp_config.fifo_threshold << 4;
cfg1 |= nv->isp_config.burst_enable << 2;
/* Enable DMA arbitration on dual channel controllers */
if (ha->ports > 1)
cfg1 |= BIT_13;
WRT_REG_WORD(&reg->cfg_1, cfg1);
/* Set SCSI termination. */
WRT_REG_WORD(&reg->gpio_enable,
BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0);
term = nv->termination.scsi_bus_1_control;
term |= nv->termination.scsi_bus_0_control << 2;
term |= nv->termination.auto_term_support << 7;
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
WRT_REG_WORD(&reg->gpio_data, term);
}
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
/* ISP parameter word. */
mb[0] = MBC_SET_SYSTEM_PARAMETER;
mb[1] = nv->isp_parameter;
status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
if (IS_ISP1x40(ha)) {
/* clock rate - for qla1240 and older, only */
mb[0] = MBC_SET_CLOCK_RATE;
mb[1] = 40;
status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
}
/* Firmware feature word. */
mb[0] = MBC_SET_FIRMWARE_FEATURES;
mb[1] = nv->firmware_feature.f.enable_fast_posting;
mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1;
mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5;
#if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2)
if (ia64_platform_is("sn2")) {
printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA "
"workaround\n", ha->host_no);
mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */
}
#endif
status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
/* Retry count and delay. */
mb[0] = MBC_SET_RETRY_COUNT;
mb[1] = nv->bus[0].retry_count;
mb[2] = nv->bus[0].retry_delay;
mb[6] = nv->bus[1].retry_count;
mb[7] = nv->bus[1].retry_delay;
status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 |
BIT_1 | BIT_0, &mb[0]);
/* ASYNC data setup time. */
mb[0] = MBC_SET_ASYNC_DATA_SETUP;
mb[1] = nv->bus[0].config_2.async_data_setup_time;
mb[2] = nv->bus[1].config_2.async_data_setup_time;
status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
/* Active negation states. */
mb[0] = MBC_SET_ACTIVE_NEGATION;
mb[1] = 0;
if (nv->bus[0].config_2.req_ack_active_negation)
mb[1] |= BIT_5;
if (nv->bus[0].config_2.data_line_active_negation)
mb[1] |= BIT_4;
mb[2] = 0;
if (nv->bus[1].config_2.req_ack_active_negation)
mb[2] |= BIT_5;
if (nv->bus[1].config_2.data_line_active_negation)
mb[2] |= BIT_4;
status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY;
mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */
status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
/* thingy */
mb[0] = MBC_SET_PCI_CONTROL;
mb[1] = BIT_1; /* Data DMA Channel Burst Enable */
mb[2] = BIT_1; /* Command DMA Channel Burst Enable */
status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
mb[0] = MBC_SET_TAG_AGE_LIMIT;
mb[1] = 8;
status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb);
/* Selection timeout. */
mb[0] = MBC_SET_SELECTION_TIMEOUT;
mb[1] = nv->bus[0].selection_timeout;
mb[2] = nv->bus[1].selection_timeout;
status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb);
for (bus = 0; bus < ha->ports; bus++)
status |= qla1280_config_bus(ha, bus);
if (status)
dprintk(2, "qla1280_nvram_config: **** FAILED ****\n");
LEAVE("qla1280_nvram_config");
return status;
}
/*
* Get NVRAM data word
* Calculates word position in NVRAM and calls request routine to
* get the word from NVRAM.
*
* Input:
* ha = adapter block pointer.
* address = NVRAM word address.
*
* Returns:
* data word.
*/
static uint16_t
qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address)
{
uint32_t nv_cmd;
uint16_t data;
nv_cmd = address << 16;
nv_cmd |= NV_READ_OP;
data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd));
dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = "
"0x%x", data);
return data;
}
/*
* NVRAM request
* Sends read command to NVRAM and gets data from NVRAM.
*
* Input:
* ha = adapter block pointer.
* nv_cmd = Bit 26 = start bit
* Bit 25, 24 = opcode
* Bit 23-16 = address
* Bit 15-0 = write data
*
* Returns:
* data word.
*/
static uint16_t
qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd)
{
struct device_reg __iomem *reg = ha->iobase;
int cnt;
uint16_t data = 0;
uint16_t reg_data;
/* Send command to NVRAM. */
nv_cmd <<= 5;
for (cnt = 0; cnt < 11; cnt++) {
if (nv_cmd & BIT_31)
qla1280_nv_write(ha, NV_DATA_OUT);
else
qla1280_nv_write(ha, 0);
nv_cmd <<= 1;
}
/* Read data from NVRAM. */
for (cnt = 0; cnt < 16; cnt++) {
WRT_REG_WORD(&reg->nvram, (NV_SELECT | NV_CLOCK));
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
NVRAM_DELAY();
data <<= 1;
reg_data = RD_REG_WORD(&reg->nvram);
if (reg_data & NV_DATA_IN)
data |= BIT_0;
WRT_REG_WORD(&reg->nvram, NV_SELECT);
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
NVRAM_DELAY();
}
/* Deselect chip. */
WRT_REG_WORD(&reg->nvram, NV_DESELECT);
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
NVRAM_DELAY();
return data;
}
static void
qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data)
{
struct device_reg __iomem *reg = ha->iobase;
WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
NVRAM_DELAY();
WRT_REG_WORD(&reg->nvram, data | NV_SELECT | NV_CLOCK);
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
NVRAM_DELAY();
WRT_REG_WORD(&reg->nvram, data | NV_SELECT);
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
NVRAM_DELAY();
}
/*
* Mailbox Command
* Issue mailbox command and waits for completion.
*
* Input:
* ha = adapter block pointer.
* mr = mailbox registers to load.
* mb = data pointer for mailbox registers.
*
* Output:
* mb[MAILBOX_REGISTER_COUNT] = returned mailbox data.
*
* Returns:
* 0 = success
*/
static int
qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb)
{
struct device_reg __iomem *reg = ha->iobase;
#if 0
LIST_HEAD(done_q);
#endif
int status = 0;
int cnt;
uint16_t *optr, *iptr;
uint16_t __iomem *mptr;
uint16_t data;
DECLARE_COMPLETION_ONSTACK(wait);
struct timer_list timer;
ENTER("qla1280_mailbox_command");
if (ha->mailbox_wait) {
printk(KERN_ERR "Warning mailbox wait already in use!\n");
}
ha->mailbox_wait = &wait;
/*
* We really should start out by verifying that the mailbox is
* available before starting sending the command data
*/
/* Load mailbox registers. */
mptr = (uint16_t __iomem *) &reg->mailbox0;
iptr = mb;
for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) {
if (mr & BIT_0) {
WRT_REG_WORD(mptr, (*iptr));
}
mr >>= 1;
mptr++;
iptr++;
}
/* Issue set host interrupt command. */
/* set up a timer just in case we're really jammed */
init_timer(&timer);
timer.expires = jiffies + 20*HZ;
timer.data = (unsigned long)ha;
timer.function = qla1280_mailbox_timeout;
add_timer(&timer);
spin_unlock_irq(ha->host->host_lock);
WRT_REG_WORD(&reg->host_cmd, HC_SET_HOST_INT);
data = qla1280_debounce_register(&reg->istatus);
wait_for_completion(&wait);
del_timer_sync(&timer);
spin_lock_irq(ha->host->host_lock);
ha->mailbox_wait = NULL;
/* Check for mailbox command timeout. */
if (ha->mailbox_out[0] != MBS_CMD_CMP) {
printk(KERN_WARNING "qla1280_mailbox_command: Command failed, "
"mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = "
"0x%04x\n",
mb[0], ha->mailbox_out[0], RD_REG_WORD(&reg->istatus));
printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n",
RD_REG_WORD(&reg->mailbox0), RD_REG_WORD(&reg->mailbox1),
RD_REG_WORD(&reg->mailbox2), RD_REG_WORD(&reg->mailbox3));
printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n",
RD_REG_WORD(&reg->mailbox4), RD_REG_WORD(&reg->mailbox5),
RD_REG_WORD(&reg->mailbox6), RD_REG_WORD(&reg->mailbox7));
status = 1;
}
/* Load return mailbox registers. */
optr = mb;
iptr = (uint16_t *) &ha->mailbox_out[0];
mr = MAILBOX_REGISTER_COUNT;
memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t));
#if 0
/* Go check for any response interrupts pending. */
qla1280_isr(ha, &done_q);
#endif
if (ha->flags.reset_marker)
qla1280_rst_aen(ha);
#if 0
if (!list_empty(&done_q))
qla1280_done(ha, &done_q);
#endif
if (status)
dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = "
"0x%x ****\n", mb[0]);
LEAVE("qla1280_mailbox_command");
return status;
}
/*
* qla1280_poll
* Polls ISP for interrupts.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla1280_poll(struct scsi_qla_host *ha)
{
struct device_reg __iomem *reg = ha->iobase;
uint16_t data;
LIST_HEAD(done_q);
/* ENTER("qla1280_poll"); */
/* Check for pending interrupts. */
data = RD_REG_WORD(&reg->istatus);
if (data & RISC_INT)
qla1280_isr(ha, &done_q);
if (!ha->mailbox_wait) {
if (ha->flags.reset_marker)
qla1280_rst_aen(ha);
}
if (!list_empty(&done_q))
qla1280_done(ha);
/* LEAVE("qla1280_poll"); */
}
/*
* qla1280_bus_reset
* Issue SCSI bus reset.
*
* Input:
* ha = adapter block pointer.
* bus = SCSI bus number.
*
* Returns:
* 0 = success
*/
static int
qla1280_bus_reset(struct scsi_qla_host *ha, int bus)
{
uint16_t mb[MAILBOX_REGISTER_COUNT];
uint16_t reset_delay;
int status;
dprintk(3, "qla1280_bus_reset: entered\n");
if (qla1280_verbose)
printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n",
ha->host_no, bus);
reset_delay = ha->bus_settings[bus].bus_reset_delay;
mb[0] = MBC_BUS_RESET;
mb[1] = reset_delay;
mb[2] = (uint16_t) bus;
status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
if (status) {
if (ha->bus_settings[bus].failed_reset_count > 2)
ha->bus_settings[bus].scsi_bus_dead = 1;
ha->bus_settings[bus].failed_reset_count++;
} else {
spin_unlock_irq(ha->host->host_lock);
ssleep(reset_delay);
spin_lock_irq(ha->host->host_lock);
ha->bus_settings[bus].scsi_bus_dead = 0;
ha->bus_settings[bus].failed_reset_count = 0;
ha->bus_settings[bus].reset_marker = 0;
/* Issue marker command. */
qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL);
}
/*
* We should probably call qla1280_set_target_parameters()
* here as well for all devices on the bus.
*/
if (status)
dprintk(2, "qla1280_bus_reset: **** FAILED ****\n");
else
dprintk(3, "qla1280_bus_reset: exiting normally\n");
return status;
}
/*
* qla1280_device_reset
* Issue bus device reset message to the target.
*
* Input:
* ha = adapter block pointer.
* bus = SCSI BUS number.
* target = SCSI ID.
*
* Returns:
* 0 = success
*/
static int
qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target)
{
uint16_t mb[MAILBOX_REGISTER_COUNT];
int status;
ENTER("qla1280_device_reset");
mb[0] = MBC_ABORT_TARGET;
mb[1] = (bus ? (target | BIT_7) : target) << 8;
mb[2] = 1;
status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]);
/* Issue marker command. */
qla1280_marker(ha, bus, target, 0, MK_SYNC_ID);
if (status)
dprintk(2, "qla1280_device_reset: **** FAILED ****\n");
LEAVE("qla1280_device_reset");
return status;
}
/*
* qla1280_abort_device
* Issue an abort message to the device
*
* Input:
* ha = adapter block pointer.
* bus = SCSI BUS.
* target = SCSI ID.
* lun = SCSI LUN.
*
* Returns:
* 0 = success
*/
static int
qla1280_abort_device(struct scsi_qla_host *ha, int bus, int target, int lun)
{
uint16_t mb[MAILBOX_REGISTER_COUNT];
int status;
ENTER("qla1280_abort_device");
mb[0] = MBC_ABORT_DEVICE;
mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]);
/* Issue marker command. */
qla1280_marker(ha, bus, target, lun, MK_SYNC_ID_LUN);
if (status)
dprintk(2, "qla1280_abort_device: **** FAILED ****\n");
LEAVE("qla1280_abort_device");
return status;
}
/*
* qla1280_abort_command
* Abort command aborts a specified IOCB.
*
* Input:
* ha = adapter block pointer.
* sp = SB structure pointer.
*
* Returns:
* 0 = success
*/
static int
qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle)
{
uint16_t mb[MAILBOX_REGISTER_COUNT];
unsigned int bus, target, lun;
int status;
ENTER("qla1280_abort_command");
bus = SCSI_BUS_32(sp->cmd);
target = SCSI_TCN_32(sp->cmd);
lun = SCSI_LUN_32(sp->cmd);
sp->flags |= SRB_ABORT_PENDING;
mb[0] = MBC_ABORT_COMMAND;
mb[1] = (bus ? target | BIT_7 : target) << 8 | lun;
mb[2] = handle >> 16;
mb[3] = handle & 0xffff;
status = qla1280_mailbox_command(ha, 0x0f, &mb[0]);
if (status) {
dprintk(2, "qla1280_abort_command: **** FAILED ****\n");
sp->flags &= ~SRB_ABORT_PENDING;
}
LEAVE("qla1280_abort_command");
return status;
}
/*
* qla1280_reset_adapter
* Reset adapter.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla1280_reset_adapter(struct scsi_qla_host *ha)
{
struct device_reg __iomem *reg = ha->iobase;
ENTER("qla1280_reset_adapter");
/* Disable ISP chip */
ha->flags.online = 0;
WRT_REG_WORD(&reg->ictrl, ISP_RESET);
WRT_REG_WORD(&reg->host_cmd,
HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS);
RD_REG_WORD(&reg->id_l); /* Flush PCI write */
LEAVE("qla1280_reset_adapter");
}
/*
* Issue marker command.
* Function issues marker IOCB.
*
* Input:
* ha = adapter block pointer.
* bus = SCSI BUS number
* id = SCSI ID
* lun = SCSI LUN
* type = marker modifier
*/
static void
qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type)
{
struct mrk_entry *pkt;
ENTER("qla1280_marker");
/* Get request packet. */
if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) {
pkt->entry_type = MARKER_TYPE;
pkt->lun = (uint8_t) lun;
pkt->target = (uint8_t) (bus ? (id | BIT_7) : id);
pkt->modifier = type;
pkt->entry_status = 0;
/* Issue command to ISP */
qla1280_isp_cmd(ha);
}
LEAVE("qla1280_marker");
}
/*
* qla1280_64bit_start_scsi
* The start SCSI is responsible for building request packets on
* request ring and modifying ISP input pointer.
*
* Input:
* ha = adapter block pointer.
* sp = SB structure pointer.
*
* Returns:
* 0 = success, was able to issue command.
*/
#ifdef QLA_64BIT_PTR
static int
qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
{
struct device_reg __iomem *reg = ha->iobase;
struct scsi_cmnd *cmd = sp->cmd;
cmd_a64_entry_t *pkt;
__le32 *dword_ptr;
dma_addr_t dma_handle;
int status = 0;
int cnt;
int req_cnt;
int seg_cnt;
u8 dir;
ENTER("qla1280_64bit_start_scsi:");
/* Calculate number of entries and segments required. */
req_cnt = 1;
seg_cnt = scsi_dma_map(cmd);
if (seg_cnt > 0) {
if (seg_cnt > 2) {
req_cnt += (seg_cnt - 2) / 5;
if ((seg_cnt - 2) % 5)
req_cnt++;
}
} else if (seg_cnt < 0) {
status = 1;
goto out;
}
if ((req_cnt + 2) >= ha->req_q_cnt) {
/* Calculate number of free request entries. */
cnt = RD_REG_WORD(&reg->mailbox4);
if (ha->req_ring_index < cnt)
ha->req_q_cnt = cnt - ha->req_ring_index;
else
ha->req_q_cnt =
REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
}
dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
ha->req_q_cnt, seg_cnt);
/* If room for request in request ring. */
if ((req_cnt + 2) >= ha->req_q_cnt) {
status = 1;
dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt="
"0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt,
req_cnt);
goto out;
}
/* Check for room in outstanding command list. */
for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
ha->outstanding_cmds[cnt] != 0; cnt++);
if (cnt >= MAX_OUTSTANDING_COMMANDS) {
status = 1;
dprintk(2, "qla1280_start_scsi: NO ROOM IN "
"OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt);
goto out;
}
ha->outstanding_cmds[cnt] = sp;
ha->req_q_cnt -= req_cnt;
CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1);
dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp,
cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd));
dprintk(2, " bus %i, target %i, lun %i\n",
SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE);
/*
* Build command packet.
*/
pkt = (cmd_a64_entry_t *) ha->request_ring_ptr;
pkt->entry_type = COMMAND_A64_TYPE;
pkt->entry_count = (uint8_t) req_cnt;
pkt->sys_define = (uint8_t) ha->req_ring_index;
pkt->entry_status = 0;
pkt->handle = cpu_to_le32(cnt);
/* Zero out remaining portion of packet. */
memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
/* Set ISP command timeout. */
pkt->timeout = cpu_to_le16(cmd->timeout_per_command/HZ);
/* Set device target ID and LUN */
pkt->lun = SCSI_LUN_32(cmd);
pkt->target = SCSI_BUS_32(cmd) ?
(SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
/* Enable simple tag queuing if device supports it. */
if (cmd->device->simple_tags)
pkt->control_flags |= cpu_to_le16(BIT_3);
/* Load SCSI command packet. */
pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd));
/* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
/* Set transfer direction. */
dir = qla1280_data_direction(cmd);
pkt->control_flags |= cpu_to_le16(dir);
/* Set total data segment count. */
pkt->dseg_count = cpu_to_le16(seg_cnt);
/*
* Load data segments.
*/
if (seg_cnt) { /* If data transfer. */
struct scatterlist *sg, *s;
int remseg = seg_cnt;
sg = scsi_sglist(cmd);
/* Setup packet address segment pointer. */
dword_ptr = (u32 *)&pkt->dseg_0_address;
/* Load command entry data segments. */
for_each_sg(sg, s, seg_cnt, cnt) {
if (cnt == 2)
break;
dma_handle = sg_dma_address(s);
#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
if (ha->flags.use_pci_vchannel)
sn_pci_set_vchan(ha->pdev,
(unsigned long *)&dma_handle,
SCSI_BUS_32(cmd));
#endif
*dword_ptr++ =
cpu_to_le32(pci_dma_lo32(dma_handle));
*dword_ptr++ =
cpu_to_le32(pci_dma_hi32(dma_handle));
*dword_ptr++ = cpu_to_le32(sg_dma_len(s));
dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n",
cpu_to_le32(pci_dma_hi32(dma_handle)),
cpu_to_le32(pci_dma_lo32(dma_handle)),
cpu_to_le32(sg_dma_len(sg_next(s))));
remseg--;
}
dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather "
"command packet data - b %i, t %i, l %i \n",
SCSI_BUS_32(cmd), SCSI_TCN_32(cmd),
SCSI_LUN_32(cmd));
qla1280_dump_buffer(5, (char *)pkt,
REQUEST_ENTRY_SIZE);
/*
* Build continuation packets.
*/
dprintk(3, "S/G Building Continuation...seg_cnt=0x%x "
"remains\n", seg_cnt);
while (remseg > 0) {
/* Update sg start */
sg = s;
/* Adjust ring index. */
ha->req_ring_index++;
if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
ha->req_ring_index = 0;
ha->request_ring_ptr =
ha->request_ring;
} else
ha->request_ring_ptr++;
pkt = (cmd_a64_entry_t *)ha->request_ring_ptr;
/* Zero out packet. */
memset(pkt, 0, REQUEST_ENTRY_SIZE);
/* Load packet defaults. */
((struct cont_a64_entry *) pkt)->entry_type =
CONTINUE_A64_TYPE;
((struct cont_a64_entry *) pkt)->entry_count = 1;
((struct cont_a64_entry *) pkt)->sys_define =
(uint8_t)ha->req_ring_index;
/* Setup packet address segment pointer. */
dword_ptr =
(u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address;
/* Load continuation entry data segments. */
for_each_sg(sg, s, remseg, cnt) {
if (cnt == 5)
break;
dma_handle = sg_dma_address(s);
#if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2)
if (ha->flags.use_pci_vchannel)
sn_pci_set_vchan(ha->pdev,
(unsigned long *)&dma_handle,
SCSI_BUS_32(cmd));
#endif
*dword_ptr++ =
cpu_to_le32(pci_dma_lo32(dma_handle));
*dword_ptr++ =
cpu_to_le32(pci_dma_hi32(dma_handle));
*dword_ptr++ =
cpu_to_le32(sg_dma_len(s));
dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n",
cpu_to_le32(pci_dma_hi32(dma_handle)),
cpu_to_le32(pci_dma_lo32(dma_handle)),
cpu_to_le32(sg_dma_len(s)));
}
remseg -= cnt;
dprintk(5, "qla1280_64bit_start_scsi: "
"continuation packet data - b %i, t "
"%i, l %i \n", SCSI_BUS_32(cmd),
SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
qla1280_dump_buffer(5, (char *)pkt,
REQUEST_ENTRY_SIZE);
}
} else { /* No data transfer */
dprintk(5, "qla1280_64bit_start_scsi: No data, command "
"packet data - b %i, t %i, l %i \n",
SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
}
/* Adjust ring index. */
ha->req_ring_index++;
if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
ha->req_ring_index = 0;
ha->request_ring_ptr = ha->request_ring;
} else
ha->request_ring_ptr++;
/* Set chip new ring index. */
dprintk(2,
"qla1280_64bit_start_scsi: Wakeup RISC for pending command\n");
sp->flags |= SRB_SENT;
ha->actthreads++;
WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
/* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
mmiowb();
out:
if (status)
dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n");
else
dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n");
return status;
}
#else /* !QLA_64BIT_PTR */
/*
* qla1280_32bit_start_scsi
* The start SCSI is responsible for building request packets on
* request ring and modifying ISP input pointer.
*
* The Qlogic firmware interface allows every queue slot to have a SCSI
* command and up to 4 scatter/gather (SG) entries. If we need more
* than 4 SG entries, then continuation entries are used that can
* hold another 7 entries each. The start routine determines if there
* is eought empty slots then build the combination of requests to
* fulfill the OS request.
*
* Input:
* ha = adapter block pointer.
* sp = SCSI Request Block structure pointer.
*
* Returns:
* 0 = success, was able to issue command.
*/
static int
qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp)
{
struct device_reg __iomem *reg = ha->iobase;
struct scsi_cmnd *cmd = sp->cmd;
struct cmd_entry *pkt;
__le32 *dword_ptr;
int status = 0;
int cnt;
int req_cnt;
int seg_cnt;
u8 dir;
ENTER("qla1280_32bit_start_scsi");
dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp,
cmd->cmnd[0]);
/* Calculate number of entries and segments required. */
req_cnt = 1;
seg_cnt = scsi_dma_map(cmd);
if (seg_cnt) {
/*
* if greater than four sg entries then we need to allocate
* continuation entries
*/
if (seg_cnt > 4) {
req_cnt += (seg_cnt - 4) / 7;
if ((seg_cnt - 4) % 7)
req_cnt++;
}
dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n",
cmd, seg_cnt, req_cnt);
} else if (seg_cnt < 0) {
status = 1;
goto out;
}
if ((req_cnt + 2) >= ha->req_q_cnt) {
/* Calculate number of free request entries. */
cnt = RD_REG_WORD(&reg->mailbox4);
if (ha->req_ring_index < cnt)
ha->req_q_cnt = cnt - ha->req_ring_index;
else
ha->req_q_cnt =
REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
}
dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n",
ha->req_q_cnt, seg_cnt);
/* If room for request in request ring. */
if ((req_cnt + 2) >= ha->req_q_cnt) {
status = 1;
dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, "
"req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index,
ha->req_q_cnt, req_cnt);
goto out;
}
/* Check for empty slot in outstanding command list. */
for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS &&
(ha->outstanding_cmds[cnt] != 0); cnt++) ;
if (cnt >= MAX_OUTSTANDING_COMMANDS) {
status = 1;
dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING "
"ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt);
goto out;
}
CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1);
ha->outstanding_cmds[cnt] = sp;
ha->req_q_cnt -= req_cnt;
/*
* Build command packet.
*/
pkt = (struct cmd_entry *) ha->request_ring_ptr;
pkt->entry_type = COMMAND_TYPE;
pkt->entry_count = (uint8_t) req_cnt;
pkt->sys_define = (uint8_t) ha->req_ring_index;
pkt->entry_status = 0;
pkt->handle = cpu_to_le32(cnt);
/* Zero out remaining portion of packet. */
memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8));
/* Set ISP command timeout. */
pkt->timeout = cpu_to_le16(cmd->timeout_per_command/HZ);
/* Set device target ID and LUN */
pkt->lun = SCSI_LUN_32(cmd);
pkt->target = SCSI_BUS_32(cmd) ?
(SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd);
/* Enable simple tag queuing if device supports it. */
if (cmd->device->simple_tags)
pkt->control_flags |= cpu_to_le16(BIT_3);
/* Load SCSI command packet. */
pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd));
memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd));
/*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */
/* Set transfer direction. */
dir = qla1280_data_direction(cmd);
pkt->control_flags |= cpu_to_le16(dir);
/* Set total data segment count. */
pkt->dseg_count = cpu_to_le16(seg_cnt);
/*
* Load data segments.
*/
if (seg_cnt) {
struct scatterlist *sg, *s;
int remseg = seg_cnt;
sg = scsi_sglist(cmd);
/* Setup packet address segment pointer. */
dword_ptr = &pkt->dseg_0_address;
dprintk(3, "Building S/G data segments..\n");
qla1280_dump_buffer(1, (char *)sg, 4 * 16);
/* Load command entry data segments. */
for_each_sg(sg, s, seg_cnt, cnt) {
if (cnt == 4)
break;
*dword_ptr++ =
cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
*dword_ptr++ = cpu_to_le32(sg_dma_len(s));
dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n",
(pci_dma_lo32(sg_dma_address(s))),
(sg_dma_len(s)));
remseg--;
}
/*
* Build continuation packets.
*/
dprintk(3, "S/G Building Continuation"
"...seg_cnt=0x%x remains\n", seg_cnt);
while (remseg > 0) {
/* Continue from end point */
sg = s;
/* Adjust ring index. */
ha->req_ring_index++;
if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
ha->req_ring_index = 0;
ha->request_ring_ptr =
ha->request_ring;
} else
ha->request_ring_ptr++;
pkt = (struct cmd_entry *)ha->request_ring_ptr;
/* Zero out packet. */
memset(pkt, 0, REQUEST_ENTRY_SIZE);
/* Load packet defaults. */
((struct cont_entry *) pkt)->
entry_type = CONTINUE_TYPE;
((struct cont_entry *) pkt)->entry_count = 1;
((struct cont_entry *) pkt)->sys_define =
(uint8_t) ha->req_ring_index;
/* Setup packet address segment pointer. */
dword_ptr =
&((struct cont_entry *) pkt)->dseg_0_address;
/* Load continuation entry data segments. */
for_each_sg(sg, s, remseg, cnt) {
if (cnt == 7)
break;
*dword_ptr++ =
cpu_to_le32(pci_dma_lo32(sg_dma_address(s)));
*dword_ptr++ =
cpu_to_le32(sg_dma_len(s));
dprintk(1,
"S/G Segment Cont. phys_addr=0x%x, "
"len=0x%x\n",
cpu_to_le32(pci_dma_lo32(sg_dma_address(s))),
cpu_to_le32(sg_dma_len(s)));
}
remseg -= cnt;
dprintk(5, "qla1280_32bit_start_scsi: "
"continuation packet data - "
"scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd),
SCSI_TCN_32(cmd), SCSI_LUN_32(cmd));
qla1280_dump_buffer(5, (char *)pkt,
REQUEST_ENTRY_SIZE);
}
} else { /* No data transfer at all */
dprintk(5, "qla1280_32bit_start_scsi: No data, command "
"packet data - \n");
qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE);
}
dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n");
qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
REQUEST_ENTRY_SIZE);
/* Adjust ring index. */
ha->req_ring_index++;
if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
ha->req_ring_index = 0;
ha->request_ring_ptr = ha->request_ring;
} else
ha->request_ring_ptr++;
/* Set chip new ring index. */
dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC "
"for pending command\n");
sp->flags |= SRB_SENT;
ha->actthreads++;
WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
/* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */
mmiowb();
out:
if (status)
dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n");
LEAVE("qla1280_32bit_start_scsi");
return status;
}
#endif
/*
* qla1280_req_pkt
* Function is responsible for locking ring and
* getting a zeroed out request packet.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = failed to get slot.
*/
static request_t *
qla1280_req_pkt(struct scsi_qla_host *ha)
{
struct device_reg __iomem *reg = ha->iobase;
request_t *pkt = NULL;
int cnt;
uint32_t timer;
ENTER("qla1280_req_pkt");
/*
* This can be called from interrupt context, damn it!!!
*/
/* Wait for 30 seconds for slot. */
for (timer = 15000000; timer; timer--) {
if (ha->req_q_cnt > 0) {
/* Calculate number of free request entries. */
cnt = RD_REG_WORD(&reg->mailbox4);
if (ha->req_ring_index < cnt)
ha->req_q_cnt = cnt - ha->req_ring_index;
else
ha->req_q_cnt =
REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt);
}
/* Found empty request ring slot? */
if (ha->req_q_cnt > 0) {
ha->req_q_cnt--;
pkt = ha->request_ring_ptr;
/* Zero out packet. */
memset(pkt, 0, REQUEST_ENTRY_SIZE);
/*
* How can this be right when we have a ring
* size of 512???
*/
/* Set system defined field. */
pkt->sys_define = (uint8_t) ha->req_ring_index;
/* Set entry count. */
pkt->entry_count = 1;
break;
}
udelay(2); /* 10 */
/* Check for pending interrupts. */
qla1280_poll(ha);
}
if (!pkt)
dprintk(2, "qla1280_req_pkt: **** FAILED ****\n");
else
dprintk(3, "qla1280_req_pkt: exiting normally\n");
return pkt;
}
/*
* qla1280_isp_cmd
* Function is responsible for modifying ISP input pointer.
* Releases ring lock.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla1280_isp_cmd(struct scsi_qla_host *ha)
{
struct device_reg __iomem *reg = ha->iobase;
ENTER("qla1280_isp_cmd");
dprintk(5, "qla1280_isp_cmd: IOCB data:\n");
qla1280_dump_buffer(5, (char *)ha->request_ring_ptr,
REQUEST_ENTRY_SIZE);
/* Adjust ring index. */
ha->req_ring_index++;
if (ha->req_ring_index == REQUEST_ENTRY_CNT) {
ha->req_ring_index = 0;
ha->request_ring_ptr = ha->request_ring;
} else
ha->request_ring_ptr++;
/*
* Update request index to mailbox4 (Request Queue In).
* The mmiowb() ensures that this write is ordered with writes by other
* CPUs. Without the mmiowb(), it is possible for the following:
* CPUA posts write of index 5 to mailbox4
* CPUA releases host lock
* CPUB acquires host lock
* CPUB posts write of index 6 to mailbox4
* On PCI bus, order reverses and write of 6 posts, then index 5,
* causing chip to issue full queue of stale commands
* The mmiowb() prevents future writes from crossing the barrier.
* See Documentation/DocBook/deviceiobook.tmpl for more information.
*/
WRT_REG_WORD(&reg->mailbox4, ha->req_ring_index);
mmiowb();
LEAVE("qla1280_isp_cmd");
}
/****************************************************************************/
/* Interrupt Service Routine. */
/****************************************************************************/
/****************************************************************************
* qla1280_isr
* Calls I/O done on command completion.
*
* Input:
* ha = adapter block pointer.
* done_q = done queue.
****************************************************************************/
static void
qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q)
{
struct device_reg __iomem *reg = ha->iobase;
struct response *pkt;
struct srb *sp = NULL;
uint16_t mailbox[MAILBOX_REGISTER_COUNT];
uint16_t *wptr;
uint32_t index;
u16 istatus;
ENTER("qla1280_isr");
istatus = RD_REG_WORD(&reg->istatus);
if (!(istatus & (RISC_INT | PCI_INT)))
return;
/* Save mailbox register 5 */
mailbox[5] = RD_REG_WORD(&reg->mailbox5);
/* Check for mailbox interrupt. */
mailbox[0] = RD_REG_WORD_dmasync(&reg->semaphore);
if (mailbox[0] & BIT_0) {
/* Get mailbox data. */
/* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */
wptr = &mailbox[0];
*wptr++ = RD_REG_WORD(&reg->mailbox0);
*wptr++ = RD_REG_WORD(&reg->mailbox1);
*wptr = RD_REG_WORD(&reg->mailbox2);
if (mailbox[0] != MBA_SCSI_COMPLETION) {
wptr++;
*wptr++ = RD_REG_WORD(&reg->mailbox3);
*wptr++ = RD_REG_WORD(&reg->mailbox4);
wptr++;
*wptr++ = RD_REG_WORD(&reg->mailbox6);
*wptr = RD_REG_WORD(&reg->mailbox7);
}
/* Release mailbox registers. */
WRT_REG_WORD(&reg->semaphore, 0);
WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x",
mailbox[0]);
/* Handle asynchronous event */
switch (mailbox[0]) {
case MBA_SCSI_COMPLETION: /* Response completion */
dprintk(5, "qla1280_isr: mailbox SCSI response "
"completion\n");
if (ha->flags.online) {
/* Get outstanding command index. */
index = mailbox[2] << 16 | mailbox[1];
/* Validate handle. */
if (index < MAX_OUTSTANDING_COMMANDS)
sp = ha->outstanding_cmds[index];
else
sp = NULL;
if (sp) {
/* Free outstanding command slot. */
ha->outstanding_cmds[index] = NULL;
/* Save ISP completion status */
CMD_RESULT(sp->cmd) = 0;
/* Place block on done queue */
list_add_tail(&sp->list, done_q);
} else {
/*
* If we get here we have a real problem!
*/
printk(KERN_WARNING
"qla1280: ISP invalid handle");
}
}
break;
case MBA_BUS_RESET: /* SCSI Bus Reset */
ha->flags.reset_marker = 1;
index = mailbox[6] & BIT_0;
ha->bus_settings[index].reset_marker = 1;
printk(KERN_DEBUG "qla1280_isr(): index %i "
"asynchronous BUS_RESET\n", index);
break;
case MBA_SYSTEM_ERR: /* System Error */
printk(KERN_WARNING
"qla1280: ISP System Error - mbx1=%xh, mbx2="
"%xh, mbx3=%xh\n", mailbox[1], mailbox[2],
mailbox[3]);
break;
case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */
printk(KERN_WARNING
"qla1280: ISP Request Transfer Error\n");
break;
case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */
printk(KERN_WARNING
"qla1280: ISP Response Transfer Error\n");
break;
case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n");
break;
case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */
dprintk(2,
"qla1280_isr: asynchronous TIMEOUT_RESET\n");
break;
case MBA_DEVICE_RESET: /* Bus Device Reset */
printk(KERN_INFO "qla1280_isr(): asynchronous "
"BUS_DEVICE_RESET\n");
ha->flags.reset_marker = 1;
index = mailbox[6] & BIT_0;
ha->bus_settings[index].reset_marker = 1;
break;
case MBA_BUS_MODE_CHANGE:
dprintk(2,
"qla1280_isr: asynchronous BUS_MODE_CHANGE\n");
break;
default:
/* dprintk(1, "qla1280_isr: default case of switch MB \n"); */
if (mailbox[0] < MBA_ASYNC_EVENT) {
wptr = &mailbox[0];
memcpy((uint16_t *) ha->mailbox_out, wptr,
MAILBOX_REGISTER_COUNT *
sizeof(uint16_t));
if(ha->mailbox_wait != NULL)
complete(ha->mailbox_wait);
}
break;
}
} else {
WRT_REG_WORD(&reg->host_cmd, HC_CLR_RISC_INT);
}
/*
* We will receive interrupts during mailbox testing prior to
* the card being marked online, hence the double check.
*/
if (!(ha->flags.online && !ha->mailbox_wait)) {
dprintk(2, "qla1280_isr: Response pointer Error\n");
goto out;
}
if (mailbox[5] >= RESPONSE_ENTRY_CNT)
goto out;
while (ha->rsp_ring_index != mailbox[5]) {
pkt = ha->response_ring_ptr;
dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]"
" = 0x%x\n", ha->rsp_ring_index, mailbox[5]);
dprintk(5,"qla1280_isr: response packet data\n");
qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE);
if (pkt->entry_type == STATUS_TYPE) {
if ((le16_to_cpu(pkt->scsi_status) & 0xff)
|| pkt->comp_status || pkt->entry_status) {
dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
"0x%x mailbox[5] = 0x%x, comp_status "
"= 0x%x, scsi_status = 0x%x\n",
ha->rsp_ring_index, mailbox[5],
le16_to_cpu(pkt->comp_status),
le16_to_cpu(pkt->scsi_status));
}
} else {
dprintk(2, "qla1280_isr: ha->rsp_ring_index = "
"0x%x, mailbox[5] = 0x%x\n",
ha->rsp_ring_index, mailbox[5]);
dprintk(2, "qla1280_isr: response packet data\n");
qla1280_dump_buffer(2, (char *)pkt,
RESPONSE_ENTRY_SIZE);
}
if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) {
dprintk(2, "status: Cmd %p, handle %i\n",
ha->outstanding_cmds[pkt->handle]->cmd,
pkt->handle);
if (pkt->entry_type == STATUS_TYPE)
qla1280_status_entry(ha, pkt, done_q);
else
qla1280_error_entry(ha, pkt, done_q);
/* Adjust ring index. */
ha->rsp_ring_index++;
if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) {
ha->rsp_ring_index = 0;
ha->response_ring_ptr = ha->response_ring;
} else
ha->response_ring_ptr++;
WRT_REG_WORD(&reg->mailbox5, ha->rsp_ring_index);
}
}
out:
LEAVE("qla1280_isr");
}
/*
* qla1280_rst_aen
* Processes asynchronous reset.
*
* Input:
* ha = adapter block pointer.
*/
static void
qla1280_rst_aen(struct scsi_qla_host *ha)
{
uint8_t bus;
ENTER("qla1280_rst_aen");
if (ha->flags.online && !ha->flags.reset_active &&
!ha->flags.abort_isp_active) {
ha->flags.reset_active = 1;
while (ha->flags.reset_marker) {
/* Issue marker command. */
ha->flags.reset_marker = 0;
for (bus = 0; bus < ha->ports &&
!ha->flags.reset_marker; bus++) {
if (ha->bus_settings[bus].reset_marker) {
ha->bus_settings[bus].reset_marker = 0;
qla1280_marker(ha, bus, 0, 0,
MK_SYNC_ALL);
}
}
}
}
LEAVE("qla1280_rst_aen");
}
/*
* qla1280_status_entry
* Processes received ISP status entry.
*
* Input:
* ha = adapter block pointer.
* pkt = entry pointer.
* done_q = done queue.
*/
static void
qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt,
struct list_head *done_q)
{
unsigned int bus, target, lun;
int sense_sz;
struct srb *sp;
struct scsi_cmnd *cmd;
uint32_t handle = le32_to_cpu(pkt->handle);
uint16_t scsi_status = le16_to_cpu(pkt->scsi_status);
uint16_t comp_status = le16_to_cpu(pkt->comp_status);
ENTER("qla1280_status_entry");
/* Validate handle. */
if (handle < MAX_OUTSTANDING_COMMANDS)
sp = ha->outstanding_cmds[handle];
else
sp = NULL;
if (!sp) {
printk(KERN_WARNING "qla1280: Status Entry invalid handle\n");
goto out;
}
/* Free outstanding command slot. */
ha->outstanding_cmds[handle] = NULL;
cmd = sp->cmd;
/* Generate LU queue on cntrl, target, LUN */
bus = SCSI_BUS_32(cmd);
target = SCSI_TCN_32(cmd);
lun = SCSI_LUN_32(cmd);
if (comp_status || scsi_status) {
dprintk(3, "scsi: comp_status = 0x%x, scsi_status = "
"0x%x, handle = 0x%x\n", comp_status,
scsi_status, handle);
}
/* Target busy or queue full */
if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL ||
(scsi_status & 0xFF) == SAM_STAT_BUSY) {
CMD_RESULT(cmd) = scsi_status & 0xff;
} else {
/* Save ISP completion status */
CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd);
if (scsi_status & SAM_STAT_CHECK_CONDITION) {
if (comp_status != CS_ARS_FAILED) {
uint16_t req_sense_length =
le16_to_cpu(pkt->req_sense_length);
if (req_sense_length < CMD_SNSLEN(cmd))
sense_sz = req_sense_length;
else
/*
* scsi_cmnd->sense_buffer is
* 64 bytes, why only copy 63?
* This looks wrong! /Jes
*/
sense_sz = CMD_SNSLEN(cmd) - 1;
memcpy(cmd->sense_buffer,
&pkt->req_sense_data, sense_sz);
} else
sense_sz = 0;
memset(cmd->sense_buffer + sense_sz, 0,
SCSI_SENSE_BUFFERSIZE - sense_sz);
dprintk(2, "qla1280_status_entry: Check "
"condition Sense data, b %i, t %i, "
"l %i\n", bus, target, lun);
if (sense_sz)
qla1280_dump_buffer(2,
(char *)cmd->sense_buffer,
sense_sz);
}
}
/* Place command on done queue. */
list_add_tail(&sp->list, done_q);
out:
LEAVE("qla1280_status_entry");
}
/*
* qla1280_error_entry
* Processes error entry.
*
* Input:
* ha = adapter block pointer.
* pkt = entry pointer.
* done_q = done queue.
*/
static void
qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt,
struct list_head *done_q)
{
struct srb *sp;
uint32_t handle = le32_to_cpu(pkt->handle);
ENTER("qla1280_error_entry");
if (pkt->entry_status & BIT_3)
dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n");
else if (pkt->entry_status & BIT_2)
dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n");
else if (pkt->entry_status & BIT_1)
dprintk(2, "qla1280_error_entry: FULL flag error\n");
else
dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n");
/* Validate handle. */
if (handle < MAX_OUTSTANDING_COMMANDS)
sp = ha->outstanding_cmds[handle];
else
sp = NULL;
if (sp) {
/* Free outstanding command slot. */
ha->outstanding_cmds[handle] = NULL;
/* Bad payload or header */
if (pkt->entry_status & (BIT_3 + BIT_2)) {
/* Bad payload or header, set error status. */
/* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */
CMD_RESULT(sp->cmd) = DID_ERROR << 16;
} else if (pkt->entry_status & BIT_1) { /* FULL flag */
CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16;
} else {
/* Set error status. */
CMD_RESULT(sp->cmd) = DID_ERROR << 16;
}
/* Place command on done queue. */
list_add_tail(&sp->list, done_q);
}
#ifdef QLA_64BIT_PTR
else if (pkt->entry_type == COMMAND_A64_TYPE) {
printk(KERN_WARNING "!qla1280: Error Entry invalid handle");
}
#endif
LEAVE("qla1280_error_entry");
}
/*
* qla1280_abort_isp
* Resets ISP and aborts all outstanding commands.
*
* Input:
* ha = adapter block pointer.
*
* Returns:
* 0 = success
*/
static int
qla1280_abort_isp(struct scsi_qla_host *ha)
{
struct device_reg __iomem *reg = ha->iobase;
struct srb *sp;
int status = 0;
int cnt;
int bus;
ENTER("qla1280_abort_isp");
if (ha->flags.abort_isp_active || !ha->flags.online)
goto out;
ha->flags.abort_isp_active = 1;
/* Disable ISP interrupts. */
qla1280_disable_intrs(ha);
WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
RD_REG_WORD(&reg->id_l);
printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n",
ha->host_no);
/* Dequeue all commands in outstanding command list. */
for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
struct scsi_cmnd *cmd;
sp = ha->outstanding_cmds[cnt];
if (sp) {
cmd = sp->cmd;
CMD_RESULT(cmd) = DID_RESET << 16;
sp->cmd = NULL;
ha->outstanding_cmds[cnt] = NULL;
(*cmd->scsi_done)(cmd);
sp->flags = 0;
}
}
status = qla1280_load_firmware(ha);
if (status)
goto out;
/* Setup adapter based on NVRAM parameters. */
qla1280_nvram_config (ha);
status = qla1280_init_rings(ha);
if (status)
goto out;
/* Issue SCSI reset. */
for (bus = 0; bus < ha->ports; bus++)
qla1280_bus_reset(ha, bus);
ha->flags.abort_isp_active = 0;
out:
if (status) {
printk(KERN_WARNING
"qla1280: ISP error recovery failed, board disabled");
qla1280_reset_adapter(ha);
dprintk(2, "qla1280_abort_isp: **** FAILED ****\n");
}
LEAVE("qla1280_abort_isp");
return status;
}
/*
* qla1280_debounce_register
* Debounce register.
*
* Input:
* port = register address.
*
* Returns:
* register value.
*/
static u16
qla1280_debounce_register(volatile u16 __iomem * addr)
{
volatile u16 ret;
volatile u16 ret2;
ret = RD_REG_WORD(addr);
ret2 = RD_REG_WORD(addr);
if (ret == ret2)
return ret;
do {
cpu_relax();
ret = RD_REG_WORD(addr);
ret2 = RD_REG_WORD(addr);
} while (ret != ret2);
return ret;
}
/************************************************************************
* qla1280_check_for_dead_scsi_bus *
* *
* This routine checks for a dead SCSI bus *
************************************************************************/
#define SET_SXP_BANK 0x0100
#define SCSI_PHASE_INVALID 0x87FF
static int
qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus)
{
uint16_t config_reg, scsi_control;
struct device_reg __iomem *reg = ha->iobase;
if (ha->bus_settings[bus].scsi_bus_dead) {
WRT_REG_WORD(&reg->host_cmd, HC_PAUSE_RISC);
config_reg = RD_REG_WORD(&reg->cfg_1);
WRT_REG_WORD(&reg->cfg_1, SET_SXP_BANK);
scsi_control = RD_REG_WORD(&reg->scsiControlPins);
WRT_REG_WORD(&reg->cfg_1, config_reg);
WRT_REG_WORD(&reg->host_cmd, HC_RELEASE_RISC);
if (scsi_control == SCSI_PHASE_INVALID) {
ha->bus_settings[bus].scsi_bus_dead = 1;
#if 0
CMD_RESULT(cp) = DID_NO_CONNECT << 16;
CMD_HANDLE(cp) = INVALID_HANDLE;
/* ha->actthreads--; */
(*(cp)->scsi_done)(cp);
#endif
return 1; /* bus is dead */
} else {
ha->bus_settings[bus].scsi_bus_dead = 0;
ha->bus_settings[bus].failed_reset_count = 0;
}
}
return 0; /* bus is not dead */
}
static void
qla1280_get_target_parameters(struct scsi_qla_host *ha,
struct scsi_device *device)
{
uint16_t mb[MAILBOX_REGISTER_COUNT];
int bus, target, lun;
bus = device->channel;
target = device->id;
lun = device->lun;
mb[0] = MBC_GET_TARGET_PARAMETERS;
mb[1] = (uint16_t) (bus ? target | BIT_7 : target);
mb[1] <<= 8;
qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0,
&mb[0]);
printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun);
if (mb[3] != 0) {
printk(" Sync: period %d, offset %d",
(mb[3] & 0xff), (mb[3] >> 8));
if (mb[2] & BIT_13)
printk(", Wide");
if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2)
printk(", DT");
} else
printk(" Async");
if (device->simple_tags)
printk(", Tagged queuing: depth %d", device->queue_depth);
printk("\n");
}
#if DEBUG_QLA1280
static void
__qla1280_dump_buffer(char *b, int size)
{
int cnt;
u8 c;
printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah "
"Bh Ch Dh Eh Fh\n");
printk(KERN_DEBUG "---------------------------------------------"
"------------------\n");
for (cnt = 0; cnt < size;) {
c = *b++;
printk("0x%02x", c);
cnt++;
if (!(cnt % 16))
printk("\n");
else
printk(" ");
}
if (cnt % 16)
printk("\n");
}
/**************************************************************************
* ql1280_print_scsi_cmd
*
**************************************************************************/
static void
__qla1280_print_scsi_cmd(struct scsi_cmnd *cmd)
{
struct scsi_qla_host *ha;
struct Scsi_Host *host = CMD_HOST(cmd);
struct srb *sp;
/* struct scatterlist *sg; */
int i;
ha = (struct scsi_qla_host *)host->hostdata;
sp = (struct srb *)CMD_SP(cmd);
printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd));
printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd),
CMD_CDBLEN(cmd));
printk(" CDB = ");
for (i = 0; i < cmd->cmd_len; i++) {
printk("0x%02x ", cmd->cmnd[i]);
}
printk(" seg_cnt =%d\n", scsi_sg_count(cmd));
printk(" request buffer=0x%p, request buffer len=0x%x\n",
scsi_sglist(cmd), scsi_bufflen(cmd));
/* if (cmd->use_sg)
{
sg = (struct scatterlist *) cmd->request_buffer;
printk(" SG buffer: \n");
qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist)));
} */
printk(" tag=%d, transfersize=0x%x \n",
cmd->tag, cmd->transfersize);
printk(" Pid=%li, SP=0x%p\n", cmd->serial_number, CMD_SP(cmd));
printk(" underflow size = 0x%x, direction=0x%x\n",
cmd->underflow, cmd->sc_data_direction);
}
/**************************************************************************
* ql1280_dump_device
*
**************************************************************************/
static void
ql1280_dump_device(struct scsi_qla_host *ha)
{
struct scsi_cmnd *cp;
struct srb *sp;
int i;
printk(KERN_DEBUG "Outstanding Commands on controller:\n");
for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) {
if ((sp = ha->outstanding_cmds[i]) == NULL)
continue;
if ((cp = sp->cmd) == NULL)
continue;
qla1280_print_scsi_cmd(1, cp);
}
}
#endif
enum tokens {
TOKEN_NVRAM,
TOKEN_SYNC,
TOKEN_WIDE,
TOKEN_PPR,
TOKEN_VERBOSE,
TOKEN_DEBUG,
};
struct setup_tokens {
char *token;
int val;
};
static struct setup_tokens setup_token[] __initdata =
{
{ "nvram", TOKEN_NVRAM },
{ "sync", TOKEN_SYNC },
{ "wide", TOKEN_WIDE },
{ "ppr", TOKEN_PPR },
{ "verbose", TOKEN_VERBOSE },
{ "debug", TOKEN_DEBUG },
};
/**************************************************************************
* qla1280_setup
*
* Handle boot parameters. This really needs to be changed so one
* can specify per adapter parameters.
**************************************************************************/
static int __init
qla1280_setup(char *s)
{
char *cp, *ptr;
unsigned long val;
int toke;
cp = s;
while (cp && (ptr = strchr(cp, ':'))) {
ptr++;
if (!strcmp(ptr, "yes")) {
val = 0x10000;
ptr += 3;
} else if (!strcmp(ptr, "no")) {
val = 0;
ptr += 2;
} else
val = simple_strtoul(ptr, &ptr, 0);
switch ((toke = qla1280_get_token(cp))) {
case TOKEN_NVRAM:
if (!val)
driver_setup.no_nvram = 1;
break;
case TOKEN_SYNC:
if (!val)
driver_setup.no_sync = 1;
else if (val != 0x10000)
driver_setup.sync_mask = val;
break;
case TOKEN_WIDE:
if (!val)
driver_setup.no_wide = 1;
else if (val != 0x10000)
driver_setup.wide_mask = val;
break;
case TOKEN_PPR:
if (!val)
driver_setup.no_ppr = 1;
else if (val != 0x10000)
driver_setup.ppr_mask = val;
break;
case TOKEN_VERBOSE:
qla1280_verbose = val;
break;
default:
printk(KERN_INFO "qla1280: unknown boot option %s\n",
cp);
}
cp = strchr(ptr, ';');
if (cp)
cp++;
else {
break;
}
}
return 1;
}
static int __init
qla1280_get_token(char *str)
{
char *sep;
long ret = -1;
int i;
sep = strchr(str, ':');
if (sep) {
for (i = 0; i < ARRAY_SIZE(setup_token); i++) {
if (!strncmp(setup_token[i].token, str, (sep - str))) {
ret = setup_token[i].val;
break;
}
}
}
return ret;
}
static struct scsi_host_template qla1280_driver_template = {
.module = THIS_MODULE,
.proc_name = "qla1280",
.name = "Qlogic ISP 1280/12160",
.info = qla1280_info,
.slave_configure = qla1280_slave_configure,
.queuecommand = qla1280_queuecommand,
.eh_abort_handler = qla1280_eh_abort,
.eh_device_reset_handler= qla1280_eh_device_reset,
.eh_bus_reset_handler = qla1280_eh_bus_reset,
.eh_host_reset_handler = qla1280_eh_adapter_reset,
.bios_param = qla1280_biosparam,
.can_queue = 0xfffff,
.this_id = -1,
.sg_tablesize = SG_ALL,
.cmd_per_lun = 1,
.use_clustering = ENABLE_CLUSTERING,
};
static int __devinit
qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
int devnum = id->driver_data;
struct qla_boards *bdp = &ql1280_board_tbl[devnum];
struct Scsi_Host *host;
struct scsi_qla_host *ha;
int error = -ENODEV;
/* Bypass all AMI SUBSYS VENDOR IDs */
if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) {
printk(KERN_INFO
"qla1280: Skipping AMI SubSys Vendor ID Chip\n");
goto error;
}
printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n",
bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn));
if (pci_enable_device(pdev)) {
printk(KERN_WARNING
"qla1280: Failed to enabled pci device, aborting.\n");
goto error;
}
pci_set_master(pdev);
error = -ENOMEM;
host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha));
if (!host) {
printk(KERN_WARNING
"qla1280: Failed to register host, aborting.\n");
goto error_disable_device;
}
ha = (struct scsi_qla_host *)host->hostdata;
memset(ha, 0, sizeof(struct scsi_qla_host));
ha->pdev = pdev;
ha->devnum = devnum; /* specifies microcode load address */
#ifdef QLA_64BIT_PTR
if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK)) {
if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) {
printk(KERN_WARNING "scsi(%li): Unable to set a "
"suitable DMA mask - aborting\n", ha->host_no);
error = -ENODEV;
goto error_put_host;
}
} else
dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n",
ha->host_no);
#else
if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) {
printk(KERN_WARNING "scsi(%li): Unable to set a "
"suitable DMA mask - aborting\n", ha->host_no);
error = -ENODEV;
goto error_put_host;
}
#endif
ha->request_ring = pci_alloc_consistent(ha->pdev,
((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
&ha->request_dma);
if (!ha->request_ring) {
printk(KERN_INFO "qla1280: Failed to get request memory\n");
goto error_put_host;
}
ha->response_ring = pci_alloc_consistent(ha->pdev,
((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
&ha->response_dma);
if (!ha->response_ring) {
printk(KERN_INFO "qla1280: Failed to get response memory\n");
goto error_free_request_ring;
}
ha->ports = bdp->numPorts;
ha->host = host;
ha->host_no = host->host_no;
host->irq = pdev->irq;
host->max_channel = bdp->numPorts - 1;
host->max_lun = MAX_LUNS - 1;
host->max_id = MAX_TARGETS;
host->max_sectors = 1024;
host->unique_id = host->host_no;
error = -ENODEV;
#if MEMORY_MAPPED_IO
ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1),
pci_resource_len(ha->pdev, 1));
if (!ha->mmpbase) {
printk(KERN_INFO "qla1280: Unable to map I/O memory\n");
goto error_free_response_ring;
}
host->base = (unsigned long)ha->mmpbase;
ha->iobase = (struct device_reg __iomem *)ha->mmpbase;
#else
host->io_port = pci_resource_start(ha->pdev, 0);
if (!request_region(host->io_port, 0xff, "qla1280")) {
printk(KERN_INFO "qla1280: Failed to reserve i/o region "
"0x%04lx-0x%04lx - already in use\n",
host->io_port, host->io_port + 0xff);
goto error_free_response_ring;
}
ha->iobase = (struct device_reg *)host->io_port;
#endif
INIT_LIST_HEAD(&ha->done_q);
/* Disable ISP interrupts. */
qla1280_disable_intrs(ha);
if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED,
"qla1280", ha)) {
printk("qla1280 : Failed to reserve interrupt %d already "
"in use\n", pdev->irq);
goto error_release_region;
}
/* load the F/W, read paramaters, and init the H/W */
if (qla1280_initialize_adapter(ha)) {
printk(KERN_INFO "qla1x160: Failed to initialize adapter\n");
goto error_free_irq;
}
/* set our host ID (need to do something about our two IDs) */
host->this_id = ha->bus_settings[0].id;
pci_set_drvdata(pdev, host);
error = scsi_add_host(host, &pdev->dev);
if (error)
goto error_disable_adapter;
scsi_scan_host(host);
return 0;
error_disable_adapter:
qla1280_disable_intrs(ha);
error_free_irq:
free_irq(pdev->irq, ha);
error_release_region:
#if MEMORY_MAPPED_IO
iounmap(ha->mmpbase);
#else
release_region(host->io_port, 0xff);
#endif
error_free_response_ring:
pci_free_consistent(ha->pdev,
((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)),
ha->response_ring, ha->response_dma);
error_free_request_ring:
pci_free_consistent(ha->pdev,
((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)),
ha->request_ring, ha->request_dma);
error_put_host:
scsi_host_put(host);
error_disable_device:
pci_disable_device(pdev);
error:
return error;
}
static void __devexit
qla1280_remove_one(struct pci_dev *pdev)
{
struct Scsi_Host *host = pci_get_drvdata(pdev);
struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata;
scsi_remove_host(host);
qla1280_disable_intrs(ha);
free_irq(pdev->irq, ha);
#if MEMORY_MAPPED_IO
iounmap(ha->mmpbase);
#else
release_region(host->io_port, 0xff);
#endif
pci_free_consistent(ha->pdev,
((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))),
ha->request_ring, ha->request_dma);
pci_free_consistent(ha->pdev,
((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))),
ha->response_ring, ha->response_dma);
pci_disable_device(pdev);
scsi_host_put(host);
}
static struct pci_driver qla1280_pci_driver = {
.name = "qla1280",
.id_table = qla1280_pci_tbl,
.probe = qla1280_probe_one,
.remove = __devexit_p(qla1280_remove_one),
};
static int __init
qla1280_init(void)
{
if (sizeof(struct srb) > sizeof(struct scsi_pointer)) {
printk(KERN_WARNING
"qla1280: struct srb too big, aborting\n");
return -EINVAL;
}
#ifdef MODULE
/*
* If we are called as a module, the qla1280 pointer may not be null
* and it would point to our bootup string, just like on the lilo
* command line. IF not NULL, then process this config string with
* qla1280_setup
*
* Boot time Options
* To add options at boot time add a line to your lilo.conf file like:
* append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}"
* which will result in the first four devices on the first two
* controllers being set to a tagged queue depth of 32.
*/
if (qla1280)
qla1280_setup(qla1280);
#endif
return pci_register_driver(&qla1280_pci_driver);
}
static void __exit
qla1280_exit(void)
{
pci_unregister_driver(&qla1280_pci_driver);
}
module_init(qla1280_init);
module_exit(qla1280_exit);
MODULE_AUTHOR("Qlogic & Jes Sorensen");
MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver");
MODULE_LICENSE("GPL");
MODULE_VERSION(QLA1280_VERSION);
/*
* Overrides for Emacs so that we almost follow Linus's tabbing style.
* Emacs will notice this stuff at the end of the file and automatically
* adjust the settings for this buffer only. This must remain at the end
* of the file.
* ---------------------------------------------------------------------------
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* End:
*/
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