| /****************************************************************************** |
| * 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 "3.27" |
| /***************************************************************************** |
| Revision History: |
| Rev 3.27, February 10, 2009, Michael Reed |
| - General code cleanup. |
| - Improve error recovery. |
| 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 firmware!!! |
| 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/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 <linux/firmware.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 |
| |
| |
| /* |
| * 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 |
| |
| #include "qla1280.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_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 */ |
| char *fwname; /* firmware name */ |
| }; |
| |
| /* 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, "qlogic/12160.bin"}, |
| {"QLA1040", 1, "qlogic/1040.bin"}, |
| {"QLA1080", 1, "qlogic/1280.bin"}, |
| {"QLA1240", 2, "qlogic/1280.bin"}, |
| {"QLA1280", 2, "qlogic/1280.bin"}, |
| {"QLA10160", 1, "qlogic/12160.bin"}, |
| {" ", 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 firmware 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], ha->fwver1, ha->fwver2, ha->fwver3, |
| QLA1280_VERSION); |
| return bp; |
| } |
| |
| /************************************************************************** |
| * qla1280_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_SP(cmd); |
| int status; |
| |
| cmd->scsi_done = fn; |
| sp->cmd = cmd; |
| sp->flags = 0; |
| sp->wait = NULL; |
| CMD_HANDLE(cmd) = (unsigned char *)NULL; |
| |
| 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, |
| DEVICE_RESET, |
| BUS_RESET, |
| ADAPTER_RESET, |
| }; |
| |
| |
| static void qla1280_mailbox_timeout(unsigned long __data) |
| { |
| struct scsi_qla_host *ha = (struct scsi_qla_host *)__data; |
| struct device_reg __iomem *reg; |
| reg = ha->iobase; |
| |
| ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0); |
| printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, " |
| "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0], |
| RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus)); |
| complete(ha->mailbox_wait); |
| } |
| |
| static int |
| _qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp, |
| struct completion *wait) |
| { |
| int status = FAILED; |
| struct scsi_cmnd *cmd = sp->cmd; |
| |
| spin_unlock_irq(ha->host->host_lock); |
| wait_for_completion_timeout(wait, 4*HZ); |
| spin_lock_irq(ha->host->host_lock); |
| sp->wait = NULL; |
| if(CMD_HANDLE(cmd) == COMPLETED_HANDLE) { |
| status = SUCCESS; |
| (*cmd->scsi_done)(cmd); |
| } |
| return status; |
| } |
| |
| static int |
| qla1280_wait_for_single_command(struct scsi_qla_host *ha, struct srb *sp) |
| { |
| DECLARE_COMPLETION_ONSTACK(wait); |
| |
| sp->wait = &wait; |
| return _qla1280_wait_for_single_command(ha, sp, &wait); |
| } |
| |
| static int |
| qla1280_wait_for_pending_commands(struct scsi_qla_host *ha, int bus, int target) |
| { |
| int cnt; |
| int status; |
| struct srb *sp; |
| struct scsi_cmnd *cmd; |
| |
| status = SUCCESS; |
| |
| /* |
| * Wait for all commands with the designated bus/target |
| * to be completed by the firmware |
| */ |
| for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { |
| sp = ha->outstanding_cmds[cnt]; |
| if (sp) { |
| cmd = sp->cmd; |
| |
| if (bus >= 0 && SCSI_BUS_32(cmd) != bus) |
| continue; |
| if (target >= 0 && SCSI_TCN_32(cmd) != target) |
| continue; |
| |
| status = qla1280_wait_for_single_command(ha, sp); |
| if (status == FAILED) |
| break; |
| } |
| } |
| return status; |
| } |
| |
| /************************************************************************** |
| * qla1280_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 |
| * |
| **************************************************************************/ |
| static int |
| qla1280_error_action(struct scsi_cmnd *cmd, enum action action) |
| { |
| struct scsi_qla_host *ha; |
| int bus, target, lun; |
| struct srb *sp; |
| int i, found; |
| int result=FAILED; |
| int wait_for_bus=-1; |
| int wait_for_target = -1; |
| DECLARE_COMPLETION_ONSTACK(wait); |
| |
| ENTER("qla1280_error_action"); |
| |
| ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata); |
| sp = (struct srb *)CMD_SP(cmd); |
| bus = SCSI_BUS_32(cmd); |
| target = SCSI_TCN_32(cmd); |
| lun = SCSI_LUN_32(cmd); |
| |
| 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); |
| |
| 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); |
| |
| /* |
| * Check to see if we have the command in the outstanding_cmds[] |
| * array. If not then it must have completed before this error |
| * action was initiated. If the error_action isn't ABORT_COMMAND |
| * then the driver must proceed with the requested action. |
| */ |
| found = -1; |
| for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { |
| if (sp == ha->outstanding_cmds[i]) { |
| found = i; |
| sp->wait = &wait; /* we'll wait for it to complete */ |
| break; |
| } |
| } |
| |
| if (found < 0) { /* driver doesn't have command */ |
| result = SUCCESS; |
| if (qla1280_verbose) { |
| printk(KERN_INFO |
| "scsi(%ld:%d:%d:%d): specified command has " |
| "already completed.\n", ha->host_no, bus, |
| target, lun); |
| } |
| } |
| |
| switch (action) { |
| |
| case ABORT_COMMAND: |
| dprintk(1, "qla1280: RISC aborting command\n"); |
| /* |
| * The abort might fail due to race when the host_lock |
| * is released to issue the abort. As such, we |
| * don't bother to check the return status. |
| */ |
| if (found >= 0) |
| qla1280_abort_command(ha, sp, found); |
| 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) { |
| /* issued device reset, set wait conditions */ |
| wait_for_bus = bus; |
| wait_for_target = target; |
| } |
| 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) { |
| /* issued bus reset, set wait conditions */ |
| wait_for_bus = bus; |
| } |
| 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; |
| |
| if (qla1280_abort_isp(ha) != 0) { /* it's dead */ |
| result = FAILED; |
| } |
| |
| ha->flags.reset_active = 0; |
| } |
| |
| /* |
| * At this point, the host_lock has been released and retaken |
| * by the issuance of the mailbox command. |
| * Wait for the command passed in by the mid-layer if it |
| * was found by the driver. It might have been returned |
| * between eh recovery steps, hence the check of the "found" |
| * variable. |
| */ |
| |
| if (found >= 0) |
| result = _qla1280_wait_for_single_command(ha, sp, &wait); |
| |
| if (action == ABORT_COMMAND && result != SUCCESS) { |
| printk(KERN_WARNING |
| "scsi(%li:%i:%i:%i): " |
| "Unable to abort command!\n", |
| ha->host_no, bus, target, lun); |
| } |
| |
| /* |
| * If the command passed in by the mid-layer has been |
| * returned by the board, then wait for any additional |
| * commands which are supposed to complete based upon |
| * the error action. |
| * |
| * All commands are unconditionally returned during a |
| * call to qla1280_abort_isp(), ADAPTER_RESET. No need |
| * to wait for them. |
| */ |
| if (result == SUCCESS && wait_for_bus >= 0) { |
| result = qla1280_wait_for_pending_commands(ha, |
| wait_for_bus, wait_for_target); |
| } |
| |
| 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(®->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. */ |
| if (!ha->flags.abort_isp_active) |
| qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); |
| break; |
| case DID_ABORT: |
| sp->flags &= ~SRB_ABORT_PENDING; |
| sp->flags |= SRB_ABORTED; |
| break; |
| default: |
| break; |
| } |
| |
| /* Release memory used for this I/O */ |
| scsi_dma_unmap(cmd); |
| |
| /* Call the mid-level driver interrupt handler */ |
| ha->actthreads--; |
| |
| if (sp->wait == NULL) |
| (*(cmd)->scsi_done)(cmd); |
| else |
| 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(®->semaphore, 0); |
| WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); |
| WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT); |
| RD_REG_WORD(®->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", ®->id_l); |
| |
| dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no); |
| |
| /* Soft reset chip and wait for it to finish. */ |
| WRT_REG_WORD(®->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(®->ictrl); |
| /* |
| * Yet another QLogic gem ;-( |
| */ |
| for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) { |
| udelay(5); |
| data = RD_REG_WORD(®->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(®->cfg_1, 0); |
| |
| /* Reset RISC and disable BIOS which |
| allows RISC to execute out of RAM. */ |
| WRT_REG_WORD(®->host_cmd, HC_RESET_RISC | |
| HC_RELEASE_RISC | HC_DISABLE_BIOS); |
| |
| RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| data = qla1280_debounce_register(®->mailbox0); |
| |
| /* |
| * I *LOVE* this code! |
| */ |
| for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) { |
| udelay(5); |
| data = RD_REG_WORD(®->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(®->mailbox1) != PROD_ID_1 || |
| (RD_REG_WORD(®->mailbox2) != PROD_ID_2 && |
| RD_REG_WORD(®->mailbox2) != PROD_ID_2a) || |
| RD_REG_WORD(®->mailbox3) != PROD_ID_3 || |
| RD_REG_WORD(®->mailbox4) != PROD_ID_4) { |
| printk(KERN_INFO "qla1280: Wrong product ID = " |
| "0x%x,0x%x,0x%x,0x%x\n", |
| RD_REG_WORD(®->mailbox1), |
| RD_REG_WORD(®->mailbox2), |
| RD_REG_WORD(®->mailbox3), |
| RD_REG_WORD(®->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) |
| { |
| const struct firmware *fw; |
| const __le16 *fw_data; |
| uint16_t risc_address, risc_code_size; |
| uint16_t mb[MAILBOX_REGISTER_COUNT], i; |
| int err; |
| |
| spin_unlock_irq(ha->host->host_lock); |
| err = request_firmware(&fw, ql1280_board_tbl[ha->devnum].fwname, |
| &ha->pdev->dev); |
| spin_lock_irq(ha->host->host_lock); |
| if (err) { |
| printk(KERN_ERR "Failed to load image \"%s\" err %d\n", |
| ql1280_board_tbl[ha->devnum].fwname, err); |
| return err; |
| } |
| if ((fw->size % 2) || (fw->size < 6)) { |
| printk(KERN_ERR "Bogus length %zu in image \"%s\"\n", |
| fw->size, ql1280_board_tbl[ha->devnum].fwname); |
| err = -EINVAL; |
| goto out; |
| } |
| ha->fwver1 = fw->data[0]; |
| ha->fwver2 = fw->data[1]; |
| ha->fwver3 = fw->data[2]; |
| fw_data = (const __le16 *)&fw->data[0]; |
| ha->fwstart = __le16_to_cpu(fw_data[2]); |
| |
| /* Load RISC code. */ |
| risc_address = ha->fwstart; |
| fw_data = (const __le16 *)&fw->data[6]; |
| risc_code_size = (fw->size - 6) / 2; |
| |
| for (i = 0; i < risc_code_size; i++) { |
| mb[0] = MBC_WRITE_RAM_WORD; |
| mb[1] = risc_address + i; |
| mb[2] = __le16_to_cpu(fw_data[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); |
| goto out; |
| } |
| } |
| out: |
| release_firmware(fw); |
| return err; |
| } |
| |
| #define DUMP_IT_BACK 0 /* for debug of RISC loading */ |
| static int |
| qla1280_load_firmware_dma(struct scsi_qla_host *ha) |
| { |
| const struct firmware *fw; |
| const __le16 *fw_data; |
| uint16_t risc_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 |
| |
| spin_unlock_irq(ha->host->host_lock); |
| err = request_firmware(&fw, ql1280_board_tbl[ha->devnum].fwname, |
| &ha->pdev->dev); |
| spin_lock_irq(ha->host->host_lock); |
| if (err) { |
| printk(KERN_ERR "Failed to load image \"%s\" err %d\n", |
| ql1280_board_tbl[ha->devnum].fwname, err); |
| return err; |
| } |
| if ((fw->size % 2) || (fw->size < 6)) { |
| printk(KERN_ERR "Bogus length %zu in image \"%s\"\n", |
| fw->size, ql1280_board_tbl[ha->devnum].fwname); |
| err = -EINVAL; |
| goto out; |
| } |
| ha->fwver1 = fw->data[0]; |
| ha->fwver2 = fw->data[1]; |
| ha->fwver3 = fw->data[2]; |
| fw_data = (const __le16 *)&fw->data[0]; |
| ha->fwstart = __le16_to_cpu(fw_data[2]); |
| |
| /* Load RISC code. */ |
| risc_address = ha->fwstart; |
| fw_data = (const __le16 *)&fw->data[6]; |
| risc_code_size = (fw->size - 6) / 2; |
| |
| dprintk(1, "%s: DMA RISC code (%i) words\n", |
| __func__, 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", |
| fw_data, cnt, num, risc_address); |
| for(i = 0; i < cnt; i++) |
| ((__le16 *)ha->request_ring)[i] = fw_data[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", |
| __func__, 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", |
| __func__, i, num); |
| printk(KERN_ERR "%s: FWbyte=%x " |
| "FWfromChip=%x\n", |
| __func__, sp[i], tbuf[i]); |
| /*break; */ |
| } |
| } |
| #endif |
| risc_address += cnt; |
| risc_code_size = risc_code_size - cnt; |
| fw_data = fw_data + cnt; |
| num++; |
| } |
| |
| out: |
| #if DUMP_IT_BACK |
| pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf); |
| #endif |
| release_firmware(fw); |
| 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", |
| __func__); |
| |
| /* Verify checksum of loaded RISC code. */ |
| mb[0] = MBC_VERIFY_CHECKSUM; |
| /* mb[1] = ql12_risc_code_addr01; */ |
| mb[1] = ha->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", __func__); |
| mb[0] = MBC_EXECUTE_FIRMWARE; |
| mb[1] = ha->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 = 32; |
| |
| 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); |
| 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(®->cfg_0) & ISP_CFG0_HWMSK; |
| |
| cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6); |
| cdma_conf = RD_REG_WORD(®->cdma_cfg); |
| ddma_conf = RD_REG_WORD(®->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(®->cfg_1, cfg1); |
| |
| WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB); |
| WRT_REG_WORD(®->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(®->cfg_1, cfg1); |
| |
| /* Set SCSI termination. */ |
| WRT_REG_WORD(®->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(®->id_l); /* Flush PCI write */ |
| WRT_REG_WORD(®->gpio_data, term); |
| } |
| RD_REG_WORD(®->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(®->nvram, (NV_SELECT | NV_CLOCK)); |
| RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| NVRAM_DELAY(); |
| data <<= 1; |
| reg_data = RD_REG_WORD(®->nvram); |
| if (reg_data & NV_DATA_IN) |
| data |= BIT_0; |
| WRT_REG_WORD(®->nvram, NV_SELECT); |
| RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| NVRAM_DELAY(); |
| } |
| |
| /* Deselect chip. */ |
| |
| WRT_REG_WORD(®->nvram, NV_DESELECT); |
| RD_REG_WORD(®->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(®->nvram, data | NV_SELECT); |
| RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| NVRAM_DELAY(); |
| WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK); |
| RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| NVRAM_DELAY(); |
| WRT_REG_WORD(®->nvram, data | NV_SELECT); |
| RD_REG_WORD(®->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; |
| 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 *) ®->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(®->host_cmd, HC_SET_HOST_INT); |
| data = qla1280_debounce_register(®->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(®->istatus)); |
| printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n", |
| RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1), |
| RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3)); |
| printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n", |
| RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5), |
| RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->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 (ha->flags.reset_marker) |
| qla1280_rst_aen(ha); |
| |
| 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(®->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_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(®->ictrl, ISP_RESET); |
| WRT_REG_WORD(®->host_cmd, |
| HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS); |
| RD_REG_WORD(®->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(®->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 = SCSI_MLQUEUE_HOST_BUSY; |
| 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] != NULL; cnt++); |
| |
| if (cnt >= MAX_OUTSTANDING_COMMANDS) { |
| status = SCSI_MLQUEUE_HOST_BUSY; |
| 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->request->timeout/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(®->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(®->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 = SCSI_MLQUEUE_HOST_BUSY; |
| 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 = SCSI_MLQUEUE_HOST_BUSY; |
| 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 =
|