Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 1 | /****************************************************************************** |
| 2 | * QLOGIC LINUX SOFTWARE |
| 3 | * |
| 4 | * QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver |
| 5 | * Copyright (C) 2000 Qlogic Corporation (www.qlogic.com) |
| 6 | * Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc. |
| 7 | * Copyright (C) 2003-2004 Christoph Hellwig |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License as published by the |
| 11 | * Free Software Foundation; either version 2, or (at your option) any |
| 12 | * later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, but |
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 17 | * General Public License for more details. |
| 18 | * |
| 19 | ******************************************************************************/ |
| 20 | #define QLA1280_VERSION "3.25" |
| 21 | /***************************************************************************** |
| 22 | Revision History: |
| 23 | Rev 3.25.1, February 10, 2005 Christoph Hellwig |
| 24 | - use pci_map_single to map non-S/G requests |
| 25 | - remove qla1280_proc_info |
| 26 | Rev 3.25, September 28, 2004, Christoph Hellwig |
| 27 | - add support for ISP1020/1040 |
| 28 | - don't include "scsi.h" anymore for 2.6.x |
| 29 | Rev 3.24.4 June 7, 2004 Christoph Hellwig |
| 30 | - restructure firmware loading, cleanup initialization code |
| 31 | - prepare support for ISP1020/1040 chips |
| 32 | Rev 3.24.3 January 19, 2004, Jes Sorensen |
| 33 | - Handle PCI DMA mask settings correctly |
| 34 | - Correct order of error handling in probe_one, free_irq should not |
| 35 | be called if request_irq failed |
| 36 | Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez |
| 37 | - Big endian fixes (James) |
| 38 | - Remove bogus IOCB content on zero data transfer commands (Andrew) |
| 39 | Rev 3.24.1 January 5, 2004, Jes Sorensen |
| 40 | - Initialize completion queue to avoid OOPS on probe |
| 41 | - Handle interrupts during mailbox testing |
| 42 | Rev 3.24 November 17, 2003, Christoph Hellwig |
| 43 | - use struct list_head for completion queue |
| 44 | - avoid old Scsi_FOO typedefs |
| 45 | - cleanup 2.4 compat glue a bit |
| 46 | - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h" |
| 47 | - make initialization for memory mapped vs port I/O more similar |
| 48 | - remove broken pci config space manipulation |
| 49 | - kill more cruft |
| 50 | - this is an almost perfect 2.6 scsi driver now! ;) |
| 51 | Rev 3.23.39 December 17, 2003, Jes Sorensen |
| 52 | - Delete completion queue from srb if mailbox command failed to |
| 53 | to avoid qla1280_done completeting qla1280_error_action's |
| 54 | obsolete context |
| 55 | - Reduce arguments for qla1280_done |
| 56 | Rev 3.23.38 October 18, 2003, Christoph Hellwig |
| 57 | - Convert to new-style hotplugable driver for 2.6 |
| 58 | - Fix missing scsi_unregister/scsi_host_put on HBA removal |
| 59 | - Kill some more cruft |
| 60 | Rev 3.23.37 October 1, 2003, Jes Sorensen |
| 61 | - Make MMIO depend on CONFIG_X86_VISWS instead of yet another |
| 62 | random CONFIG option |
| 63 | - Clean up locking in probe path |
| 64 | Rev 3.23.36 October 1, 2003, Christoph Hellwig |
| 65 | - queuecommand only ever receives new commands - clear flags |
| 66 | - Reintegrate lost fixes from Linux 2.5 |
| 67 | Rev 3.23.35 August 14, 2003, Jes Sorensen |
| 68 | - Build against 2.6 |
| 69 | Rev 3.23.34 July 23, 2003, Jes Sorensen |
| 70 | - Remove pointless TRUE/FALSE macros |
| 71 | - Clean up vchan handling |
| 72 | Rev 3.23.33 July 3, 2003, Jes Sorensen |
| 73 | - Don't define register access macros before define determining MMIO. |
| 74 | This just happend to work out on ia64 but not elsewhere. |
| 75 | - Don't try and read from the card while it is in reset as |
| 76 | it won't respond and causes an MCA |
| 77 | Rev 3.23.32 June 23, 2003, Jes Sorensen |
| 78 | - Basic support for boot time arguments |
| 79 | Rev 3.23.31 June 8, 2003, Jes Sorensen |
| 80 | - Reduce boot time messages |
| 81 | Rev 3.23.30 June 6, 2003, Jes Sorensen |
| 82 | - Do not enable sync/wide/ppr before it has been determined |
| 83 | that the target device actually supports it |
| 84 | - Enable DMA arbitration for multi channel controllers |
| 85 | Rev 3.23.29 June 3, 2003, Jes Sorensen |
| 86 | - Port to 2.5.69 |
| 87 | Rev 3.23.28 June 3, 2003, Jes Sorensen |
| 88 | - Eliminate duplicate marker commands on bus resets |
| 89 | - Handle outstanding commands appropriately on bus/device resets |
| 90 | Rev 3.23.27 May 28, 2003, Jes Sorensen |
| 91 | - Remove bogus input queue code, let the Linux SCSI layer do the work |
| 92 | - Clean up NVRAM handling, only read it once from the card |
| 93 | - Add a number of missing default nvram parameters |
| 94 | Rev 3.23.26 Beta May 28, 2003, Jes Sorensen |
| 95 | - Use completion queue for mailbox commands instead of busy wait |
| 96 | Rev 3.23.25 Beta May 27, 2003, James Bottomley |
| 97 | - Migrate to use new error handling code |
| 98 | Rev 3.23.24 Beta May 21, 2003, James Bottomley |
| 99 | - Big endian support |
| 100 | - Cleanup data direction code |
| 101 | Rev 3.23.23 Beta May 12, 2003, Jes Sorensen |
| 102 | - Switch to using MMIO instead of PIO |
| 103 | Rev 3.23.22 Beta April 15, 2003, Jes Sorensen |
| 104 | - Fix PCI parity problem with 12160 during reset. |
| 105 | Rev 3.23.21 Beta April 14, 2003, Jes Sorensen |
| 106 | - Use pci_map_page()/pci_unmap_page() instead of map_single version. |
| 107 | Rev 3.23.20 Beta April 9, 2003, Jes Sorensen |
| 108 | - Remove < 2.4.x support |
| 109 | - Introduce HOST_LOCK to make the spin lock changes portable. |
| 110 | - Remove a bunch of idiotic and unnecessary typedef's |
| 111 | - Kill all leftovers of target-mode support which never worked anyway |
| 112 | Rev 3.23.19 Beta April 11, 2002, Linus Torvalds |
| 113 | - Do qla1280_pci_config() before calling request_irq() and |
| 114 | request_region() |
| 115 | - Use pci_dma_hi32() to handle upper word of DMA addresses instead |
| 116 | of large shifts |
| 117 | - Hand correct arguments to free_irq() in case of failure |
| 118 | Rev 3.23.18 Beta April 11, 2002, Jes Sorensen |
| 119 | - Run source through Lindent and clean up the output |
| 120 | Rev 3.23.17 Beta April 11, 2002, Jes Sorensen |
| 121 | - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32 |
| 122 | Rev 3.23.16 Beta March 19, 2002, Jes Sorensen |
| 123 | - Rely on mailbox commands generating interrupts - do not |
| 124 | run qla1280_isr() from ql1280_mailbox_command() |
| 125 | - Remove device_reg_t |
| 126 | - Integrate ql12160_set_target_parameters() with 1280 version |
| 127 | - Make qla1280_setup() non static |
| 128 | - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request |
| 129 | sent to the card - this command pauses the firmare!!! |
| 130 | Rev 3.23.15 Beta March 19, 2002, Jes Sorensen |
| 131 | - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions |
| 132 | - Remove a pile of pointless and confusing (srb_t **) and |
| 133 | (scsi_lu_t *) typecasts |
| 134 | - Explicit mark that we do not use the new error handling (for now) |
| 135 | - Remove scsi_qla_host_t and use 'struct' instead |
| 136 | - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled, |
| 137 | pci_64bit_slot flags which weren't used for anything anyway |
| 138 | - Grab host->host_lock while calling qla1280_isr() from abort() |
| 139 | - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we |
| 140 | do not need to save/restore flags in the interrupt handler |
| 141 | - Enable interrupts early (before any mailbox access) in preparation |
| 142 | for cleaning up the mailbox handling |
| 143 | Rev 3.23.14 Beta March 14, 2002, Jes Sorensen |
| 144 | - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace |
| 145 | it with proper use of dprintk(). |
| 146 | - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take |
| 147 | a debug level argument to determine if data is to be printed |
| 148 | - Add KERN_* info to printk() |
| 149 | Rev 3.23.13 Beta March 14, 2002, Jes Sorensen |
| 150 | - Significant cosmetic cleanups |
| 151 | - Change debug code to use dprintk() and remove #if mess |
| 152 | Rev 3.23.12 Beta March 13, 2002, Jes Sorensen |
| 153 | - More cosmetic cleanups, fix places treating return as function |
| 154 | - use cpu_relax() in qla1280_debounce_register() |
| 155 | Rev 3.23.11 Beta March 13, 2002, Jes Sorensen |
| 156 | - Make it compile under 2.5.5 |
| 157 | Rev 3.23.10 Beta October 1, 2001, Jes Sorensen |
| 158 | - Do no typecast short * to long * in QL1280BoardTbl, this |
| 159 | broke miserably on big endian boxes |
| 160 | Rev 3.23.9 Beta September 30, 2001, Jes Sorensen |
| 161 | - Remove pre 2.2 hack for checking for reentrance in interrupt handler |
| 162 | - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32 |
| 163 | unsigned int to match the types from struct scsi_cmnd |
| 164 | Rev 3.23.8 Beta September 29, 2001, Jes Sorensen |
| 165 | - Remove bogus timer_t typedef from qla1280.h |
| 166 | - Remove obsolete pre 2.2 PCI setup code, use proper #define's |
| 167 | for PCI_ values, call pci_set_master() |
| 168 | - Fix memleak of qla1280_buffer on module unload |
| 169 | - Only compile module parsing code #ifdef MODULE - should be |
| 170 | changed to use individual MODULE_PARM's later |
| 171 | - Remove dummy_buffer that was never modified nor printed |
| 172 | - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove |
| 173 | #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls |
| 174 | - Remove \r from print statements, this is Linux, not DOS |
| 175 | - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK} |
| 176 | dummy macros |
| 177 | - Remove C++ compile hack in header file as Linux driver are not |
| 178 | supposed to be compiled as C++ |
| 179 | - Kill MS_64BITS macro as it makes the code more readable |
| 180 | - Remove unnecessary flags.in_interrupts bit |
| 181 | Rev 3.23.7 Beta August 20, 2001, Jes Sorensen |
| 182 | - Dont' check for set flags on q->q_flag one by one in qla1280_next() |
| 183 | - Check whether the interrupt was generated by the QLA1280 before |
| 184 | doing any processing |
| 185 | - qla1280_status_entry(): Only zero out part of sense_buffer that |
| 186 | is not being copied into |
| 187 | - Remove more superflouous typecasts |
| 188 | - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy() |
| 189 | Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel |
| 190 | - Don't walk the entire list in qla1280_putq_t() just to directly |
| 191 | grab the pointer to the last element afterwards |
| 192 | Rev 3.23.5 Beta August 9, 2001, Jes Sorensen |
| 193 | - Don't use SA_INTERRUPT, it's use is deprecated for this kinda driver |
| 194 | Rev 3.23.4 Beta August 8, 2001, Jes Sorensen |
| 195 | - Set dev->max_sectors to 1024 |
| 196 | Rev 3.23.3 Beta August 6, 2001, Jes Sorensen |
| 197 | - Provide compat macros for pci_enable_device(), pci_find_subsys() |
| 198 | and scsi_set_pci_device() |
| 199 | - Call scsi_set_pci_device() for all devices |
| 200 | - Reduce size of kernel version dependent device probe code |
| 201 | - Move duplicate probe/init code to separate function |
| 202 | - Handle error if qla1280_mem_alloc() fails |
| 203 | - Kill OFFSET() macro and use Linux's PCI definitions instead |
| 204 | - Kill private structure defining PCI config space (struct config_reg) |
| 205 | - Only allocate I/O port region if not in MMIO mode |
| 206 | - Remove duplicate (unused) sanity check of sife of srb_t |
| 207 | Rev 3.23.2 Beta August 6, 2001, Jes Sorensen |
| 208 | - Change home-brew memset() implementations to use memset() |
| 209 | - Remove all references to COMTRACE() - accessing a PC's COM2 serial |
| 210 | port directly is not legal under Linux. |
| 211 | Rev 3.23.1 Beta April 24, 2001, Jes Sorensen |
| 212 | - Remove pre 2.2 kernel support |
| 213 | - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat) |
| 214 | - Fix MMIO access to use readl/writel instead of directly |
| 215 | dereferencing pointers |
| 216 | - Nuke MSDOS debugging code |
| 217 | - Change true/false data types to int from uint8_t |
| 218 | - Use int for counters instead of uint8_t etc. |
| 219 | - Clean up size & byte order conversion macro usage |
| 220 | Rev 3.23 Beta January 11, 2001 BN Qlogic |
| 221 | - Added check of device_id when handling non |
| 222 | QLA12160s during detect(). |
| 223 | Rev 3.22 Beta January 5, 2001 BN Qlogic |
| 224 | - Changed queue_task() to schedule_task() |
| 225 | for kernels 2.4.0 and higher. |
| 226 | Note: 2.4.0-testxx kernels released prior to |
| 227 | the actual 2.4.0 kernel release on January 2001 |
| 228 | will get compile/link errors with schedule_task(). |
| 229 | Please update your kernel to released 2.4.0 level, |
| 230 | or comment lines in this file flagged with 3.22 |
| 231 | to resolve compile/link error of schedule_task(). |
| 232 | - Added -DCONFIG_SMP in addition to -D__SMP__ |
| 233 | in Makefile for 2.4.0 builds of driver as module. |
| 234 | Rev 3.21 Beta January 4, 2001 BN Qlogic |
| 235 | - Changed criteria of 64/32 Bit mode of HBA |
| 236 | operation according to BITS_PER_LONG rather |
| 237 | than HBA's NVRAM setting of >4Gig memory bit; |
| 238 | so that the HBA auto-configures without the need |
| 239 | to setup each system individually. |
| 240 | Rev 3.20 Beta December 5, 2000 BN Qlogic |
| 241 | - Added priority handling to IA-64 onboard SCSI |
| 242 | ISP12160 chip for kernels greater than 2.3.18. |
| 243 | - Added irqrestore for qla1280_intr_handler. |
| 244 | - Enabled /proc/scsi/qla1280 interface. |
| 245 | - Clear /proc/scsi/qla1280 counters in detect(). |
| 246 | Rev 3.19 Beta October 13, 2000 BN Qlogic |
| 247 | - Declare driver_template for new kernel |
| 248 | (2.4.0 and greater) scsi initialization scheme. |
| 249 | - Update /proc/scsi entry for 2.3.18 kernels and |
| 250 | above as qla1280 |
| 251 | Rev 3.18 Beta October 10, 2000 BN Qlogic |
| 252 | - Changed scan order of adapters to map |
| 253 | the QLA12160 followed by the QLA1280. |
| 254 | Rev 3.17 Beta September 18, 2000 BN Qlogic |
| 255 | - Removed warnings for 32 bit 2.4.x compiles |
| 256 | - Corrected declared size for request and response |
| 257 | DMA addresses that are kept in each ha |
| 258 | Rev. 3.16 Beta August 25, 2000 BN Qlogic |
| 259 | - Corrected 64 bit addressing issue on IA-64 |
| 260 | where the upper 32 bits were not properly |
| 261 | passed to the RISC engine. |
| 262 | Rev. 3.15 Beta August 22, 2000 BN Qlogic |
| 263 | - Modified qla1280_setup_chip to properly load |
| 264 | ISP firmware for greater that 4 Gig memory on IA-64 |
| 265 | Rev. 3.14 Beta August 16, 2000 BN Qlogic |
| 266 | - Added setting of dma_mask to full 64 bit |
| 267 | if flags.enable_64bit_addressing is set in NVRAM |
| 268 | Rev. 3.13 Beta August 16, 2000 BN Qlogic |
| 269 | - Use new PCI DMA mapping APIs for 2.4.x kernel |
| 270 | Rev. 3.12 July 18, 2000 Redhat & BN Qlogic |
| 271 | - Added check of pci_enable_device to detect() for 2.3.x |
| 272 | - Use pci_resource_start() instead of |
| 273 | pdev->resource[0].start in detect() for 2.3.x |
| 274 | - Updated driver version |
| 275 | Rev. 3.11 July 14, 2000 BN Qlogic |
| 276 | - Updated SCSI Firmware to following versions: |
| 277 | qla1x80: 8.13.08 |
| 278 | qla1x160: 10.04.08 |
| 279 | - Updated driver version to 3.11 |
| 280 | Rev. 3.10 June 23, 2000 BN Qlogic |
| 281 | - Added filtering of AMI SubSys Vendor ID devices |
| 282 | Rev. 3.9 |
| 283 | - DEBUG_QLA1280 undefined and new version BN Qlogic |
| 284 | Rev. 3.08b May 9, 2000 MD Dell |
| 285 | - Added logic to check against AMI subsystem vendor ID |
| 286 | Rev. 3.08 May 4, 2000 DG Qlogic |
| 287 | - Added logic to check for PCI subsystem ID. |
| 288 | Rev. 3.07 Apr 24, 2000 DG & BN Qlogic |
| 289 | - Updated SCSI Firmware to following versions: |
| 290 | qla12160: 10.01.19 |
| 291 | qla1280: 8.09.00 |
| 292 | Rev. 3.06 Apr 12, 2000 DG & BN Qlogic |
| 293 | - Internal revision; not released |
| 294 | Rev. 3.05 Mar 28, 2000 DG & BN Qlogic |
| 295 | - Edit correction for virt_to_bus and PROC. |
| 296 | Rev. 3.04 Mar 28, 2000 DG & BN Qlogic |
| 297 | - Merge changes from ia64 port. |
| 298 | Rev. 3.03 Mar 28, 2000 BN Qlogic |
| 299 | - Increase version to reflect new code drop with compile fix |
| 300 | of issue with inclusion of linux/spinlock for 2.3 kernels |
| 301 | Rev. 3.02 Mar 15, 2000 BN Qlogic |
| 302 | - Merge qla1280_proc_info from 2.10 code base |
| 303 | Rev. 3.01 Feb 10, 2000 BN Qlogic |
| 304 | - Corrected code to compile on a 2.2.x kernel. |
| 305 | Rev. 3.00 Jan 17, 2000 DG Qlogic |
| 306 | - Added 64-bit support. |
| 307 | Rev. 2.07 Nov 9, 1999 DG Qlogic |
| 308 | - Added new routine to set target parameters for ISP12160. |
| 309 | Rev. 2.06 Sept 10, 1999 DG Qlogic |
| 310 | - Added support for ISP12160 Ultra 3 chip. |
| 311 | Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont |
| 312 | - Modified code to remove errors generated when compiling with |
| 313 | Cygnus IA64 Compiler. |
| 314 | - Changed conversion of pointers to unsigned longs instead of integers. |
| 315 | - Changed type of I/O port variables from uint32_t to unsigned long. |
| 316 | - Modified OFFSET macro to work with 64-bit as well as 32-bit. |
| 317 | - Changed sprintf and printk format specifiers for pointers to %p. |
| 318 | - Changed some int to long type casts where needed in sprintf & printk. |
| 319 | - Added l modifiers to sprintf and printk format specifiers for longs. |
| 320 | - Removed unused local variables. |
| 321 | Rev. 1.20 June 8, 1999 DG, Qlogic |
| 322 | Changes to support RedHat release 6.0 (kernel 2.2.5). |
| 323 | - Added SCSI exclusive access lock (io_request_lock) when accessing |
| 324 | the adapter. |
| 325 | - Added changes for the new LINUX interface template. Some new error |
| 326 | handling routines have been added to the template, but for now we |
| 327 | will use the old ones. |
| 328 | - Initial Beta Release. |
| 329 | *****************************************************************************/ |
| 330 | |
| 331 | |
| 332 | #include <linux/config.h> |
| 333 | #include <linux/module.h> |
| 334 | |
| 335 | #include <linux/version.h> |
| 336 | #include <linux/types.h> |
| 337 | #include <linux/string.h> |
| 338 | #include <linux/errno.h> |
| 339 | #include <linux/kernel.h> |
| 340 | #include <linux/ioport.h> |
| 341 | #include <linux/delay.h> |
| 342 | #include <linux/timer.h> |
| 343 | #include <linux/sched.h> |
| 344 | #include <linux/pci.h> |
| 345 | #include <linux/proc_fs.h> |
| 346 | #include <linux/stat.h> |
| 347 | #include <linux/slab.h> |
| 348 | #include <linux/pci_ids.h> |
| 349 | #include <linux/interrupt.h> |
| 350 | #include <linux/init.h> |
| 351 | |
| 352 | #include <asm/io.h> |
| 353 | #include <asm/irq.h> |
| 354 | #include <asm/byteorder.h> |
| 355 | #include <asm/processor.h> |
| 356 | #include <asm/types.h> |
| 357 | #include <asm/system.h> |
| 358 | |
| 359 | #if LINUX_VERSION_CODE >= 0x020545 |
| 360 | #include <scsi/scsi.h> |
| 361 | #include <scsi/scsi_cmnd.h> |
| 362 | #include <scsi/scsi_device.h> |
| 363 | #include <scsi/scsi_host.h> |
| 364 | #include <scsi/scsi_tcq.h> |
| 365 | #else |
| 366 | #include <linux/blk.h> |
| 367 | #include "scsi.h" |
| 368 | #include <scsi/scsi_host.h> |
| 369 | #include "sd.h" |
| 370 | #endif |
| 371 | |
| 372 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) |
| 373 | #include <asm/sn/io.h> |
| 374 | #endif |
| 375 | |
| 376 | #if LINUX_VERSION_CODE < 0x020407 |
| 377 | #error "Kernels older than 2.4.7 are no longer supported" |
| 378 | #endif |
| 379 | |
| 380 | |
| 381 | /* |
| 382 | * Compile time Options: |
| 383 | * 0 - Disable and 1 - Enable |
| 384 | */ |
| 385 | #define DEBUG_QLA1280_INTR 0 |
| 386 | #define DEBUG_PRINT_NVRAM 0 |
| 387 | #define DEBUG_QLA1280 0 |
| 388 | |
| 389 | /* |
| 390 | * The SGI VISWS is broken and doesn't support MMIO ;-( |
| 391 | */ |
| 392 | #ifdef CONFIG_X86_VISWS |
| 393 | #define MEMORY_MAPPED_IO 0 |
| 394 | #else |
| 395 | #define MEMORY_MAPPED_IO 1 |
| 396 | #endif |
| 397 | |
| 398 | #define UNIQUE_FW_NAME |
| 399 | #include "qla1280.h" |
| 400 | #include "ql12160_fw.h" /* ISP RISC codes */ |
| 401 | #include "ql1280_fw.h" |
| 402 | #include "ql1040_fw.h" |
| 403 | |
| 404 | |
| 405 | /* |
| 406 | * Missing PCI ID's |
| 407 | */ |
| 408 | #ifndef PCI_DEVICE_ID_QLOGIC_ISP1080 |
| 409 | #define PCI_DEVICE_ID_QLOGIC_ISP1080 0x1080 |
| 410 | #endif |
| 411 | #ifndef PCI_DEVICE_ID_QLOGIC_ISP1240 |
| 412 | #define PCI_DEVICE_ID_QLOGIC_ISP1240 0x1240 |
| 413 | #endif |
| 414 | #ifndef PCI_DEVICE_ID_QLOGIC_ISP1280 |
| 415 | #define PCI_DEVICE_ID_QLOGIC_ISP1280 0x1280 |
| 416 | #endif |
| 417 | #ifndef PCI_DEVICE_ID_QLOGIC_ISP10160 |
| 418 | #define PCI_DEVICE_ID_QLOGIC_ISP10160 0x1016 |
| 419 | #endif |
| 420 | #ifndef PCI_DEVICE_ID_QLOGIC_ISP12160 |
| 421 | #define PCI_DEVICE_ID_QLOGIC_ISP12160 0x1216 |
| 422 | #endif |
| 423 | |
| 424 | #ifndef PCI_VENDOR_ID_AMI |
| 425 | #define PCI_VENDOR_ID_AMI 0x101e |
| 426 | #endif |
| 427 | |
| 428 | #ifndef BITS_PER_LONG |
| 429 | #error "BITS_PER_LONG not defined!" |
| 430 | #endif |
| 431 | #if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM |
| 432 | #define QLA_64BIT_PTR 1 |
| 433 | #endif |
| 434 | |
| 435 | #ifdef QLA_64BIT_PTR |
| 436 | #define pci_dma_hi32(a) ((a >> 16) >> 16) |
| 437 | #else |
| 438 | #define pci_dma_hi32(a) 0 |
| 439 | #endif |
| 440 | #define pci_dma_lo32(a) (a & 0xffffffff) |
| 441 | |
| 442 | #define NVRAM_DELAY() udelay(500) /* 2 microseconds */ |
| 443 | |
| 444 | #if LINUX_VERSION_CODE < 0x020500 |
| 445 | #define HOST_LOCK &io_request_lock |
| 446 | #define irqreturn_t void |
| 447 | #define IRQ_RETVAL(foo) |
| 448 | #define MSG_ORDERED_TAG 1 |
| 449 | |
| 450 | #define DMA_BIDIRECTIONAL SCSI_DATA_UNKNOWN |
| 451 | #define DMA_TO_DEVICE SCSI_DATA_WRITE |
| 452 | #define DMA_FROM_DEVICE SCSI_DATA_READ |
| 453 | #define DMA_NONE SCSI_DATA_NONE |
| 454 | |
| 455 | #ifndef HAVE_SECTOR_T |
| 456 | typedef unsigned int sector_t; |
| 457 | #endif |
| 458 | |
| 459 | static inline void |
| 460 | scsi_adjust_queue_depth(struct scsi_device *device, int tag, int depth) |
| 461 | { |
| 462 | if (tag) { |
| 463 | device->tagged_queue = tag; |
| 464 | device->current_tag = 0; |
| 465 | } |
| 466 | device->queue_depth = depth; |
| 467 | } |
| 468 | static inline struct Scsi_Host *scsi_host_alloc(Scsi_Host_Template *t, size_t s) |
| 469 | { |
| 470 | return scsi_register(t, s); |
| 471 | } |
| 472 | static inline void scsi_host_put(struct Scsi_Host *h) |
| 473 | { |
| 474 | scsi_unregister(h); |
| 475 | } |
| 476 | #else |
| 477 | #define HOST_LOCK ha->host->host_lock |
| 478 | #endif |
| 479 | #if LINUX_VERSION_CODE < 0x020600 |
| 480 | #define DEV_SIMPLE_TAGS(device) device->tagged_queue |
| 481 | /* |
| 482 | * Hack around that qla1280_remove_one is called from |
| 483 | * qla1280_release in 2.4 |
| 484 | */ |
| 485 | #undef __devexit |
| 486 | #define __devexit |
| 487 | #else |
| 488 | #define DEV_SIMPLE_TAGS(device) device->simple_tags |
| 489 | #endif |
| 490 | #if defined(__ia64__) && !defined(ia64_platform_is) |
| 491 | #define ia64_platform_is(foo) (!strcmp(x, platform_name)) |
| 492 | #endif |
| 493 | |
| 494 | |
| 495 | #define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020) |
| 496 | #define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \ |
| 497 | ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240) |
| 498 | #define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \ |
| 499 | ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160) |
| 500 | |
| 501 | |
| 502 | static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *); |
| 503 | static void qla1280_remove_one(struct pci_dev *); |
| 504 | |
| 505 | /* |
| 506 | * QLogic Driver Support Function Prototypes. |
| 507 | */ |
| 508 | static void qla1280_done(struct scsi_qla_host *); |
| 509 | #if LINUX_VERSION_CODE < 0x020545 |
| 510 | static void qla1280_get_target_options(struct scsi_cmnd *, struct scsi_qla_host *); |
| 511 | #endif |
| 512 | static int qla1280_get_token(char *); |
| 513 | static int qla1280_setup(char *s) __init; |
| 514 | |
| 515 | /* |
| 516 | * QLogic ISP1280 Hardware Support Function Prototypes. |
| 517 | */ |
| 518 | static int qla1280_load_firmware(struct scsi_qla_host *); |
| 519 | static int qla1280_init_rings(struct scsi_qla_host *); |
| 520 | static int qla1280_nvram_config(struct scsi_qla_host *); |
| 521 | static int qla1280_mailbox_command(struct scsi_qla_host *, |
| 522 | uint8_t, uint16_t *); |
| 523 | static int qla1280_bus_reset(struct scsi_qla_host *, int); |
| 524 | static int qla1280_device_reset(struct scsi_qla_host *, int, int); |
| 525 | static int qla1280_abort_device(struct scsi_qla_host *, int, int, int); |
| 526 | static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int); |
| 527 | static int qla1280_abort_isp(struct scsi_qla_host *); |
| 528 | #ifdef QLA_64BIT_PTR |
| 529 | static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *); |
| 530 | #else |
| 531 | static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *); |
| 532 | #endif |
| 533 | static void qla1280_nv_write(struct scsi_qla_host *, uint16_t); |
| 534 | static void qla1280_poll(struct scsi_qla_host *); |
| 535 | static void qla1280_reset_adapter(struct scsi_qla_host *); |
| 536 | static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8); |
| 537 | static void qla1280_isp_cmd(struct scsi_qla_host *); |
| 538 | static void qla1280_isr(struct scsi_qla_host *, struct list_head *); |
| 539 | static void qla1280_rst_aen(struct scsi_qla_host *); |
| 540 | static void qla1280_status_entry(struct scsi_qla_host *, struct response *, |
| 541 | struct list_head *); |
| 542 | static void qla1280_error_entry(struct scsi_qla_host *, struct response *, |
| 543 | struct list_head *); |
| 544 | static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t); |
| 545 | static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t); |
| 546 | static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *); |
| 547 | static request_t *qla1280_req_pkt(struct scsi_qla_host *); |
| 548 | static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *, |
| 549 | unsigned int); |
| 550 | static void qla1280_get_target_parameters(struct scsi_qla_host *, |
| 551 | struct scsi_device *); |
| 552 | static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int); |
| 553 | |
| 554 | |
| 555 | static struct qla_driver_setup driver_setup; |
| 556 | |
| 557 | /* |
| 558 | * convert scsi data direction to request_t control flags |
| 559 | */ |
| 560 | static inline uint16_t |
| 561 | qla1280_data_direction(struct scsi_cmnd *cmnd) |
| 562 | { |
| 563 | switch(cmnd->sc_data_direction) { |
| 564 | case DMA_FROM_DEVICE: |
| 565 | return BIT_5; |
| 566 | case DMA_TO_DEVICE: |
| 567 | return BIT_6; |
| 568 | case DMA_BIDIRECTIONAL: |
| 569 | return BIT_5 | BIT_6; |
| 570 | /* |
| 571 | * We could BUG() on default here if one of the four cases aren't |
| 572 | * met, but then again if we receive something like that from the |
| 573 | * SCSI layer we have more serious problems. This shuts up GCC. |
| 574 | */ |
| 575 | case DMA_NONE: |
| 576 | default: |
| 577 | return 0; |
| 578 | } |
| 579 | } |
| 580 | |
| 581 | #if DEBUG_QLA1280 |
| 582 | static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd); |
| 583 | static void __qla1280_dump_buffer(char *, int); |
| 584 | #endif |
| 585 | |
| 586 | |
| 587 | /* |
| 588 | * insmod needs to find the variable and make it point to something |
| 589 | */ |
| 590 | #ifdef MODULE |
| 591 | static char *qla1280; |
| 592 | |
| 593 | /* insmod qla1280 options=verbose" */ |
| 594 | module_param(qla1280, charp, 0); |
| 595 | #else |
| 596 | __setup("qla1280=", qla1280_setup); |
| 597 | #endif |
| 598 | |
| 599 | |
| 600 | /* |
| 601 | * We use the scsi_pointer structure that's included with each scsi_command |
| 602 | * to overlay our struct srb over it. qla1280_init() checks that a srb is not |
| 603 | * bigger than a scsi_pointer. |
| 604 | */ |
| 605 | |
| 606 | #define CMD_SP(Cmnd) &Cmnd->SCp |
| 607 | #define CMD_CDBLEN(Cmnd) Cmnd->cmd_len |
| 608 | #define CMD_CDBP(Cmnd) Cmnd->cmnd |
| 609 | #define CMD_SNSP(Cmnd) Cmnd->sense_buffer |
| 610 | #define CMD_SNSLEN(Cmnd) sizeof(Cmnd->sense_buffer) |
| 611 | #define CMD_RESULT(Cmnd) Cmnd->result |
| 612 | #define CMD_HANDLE(Cmnd) Cmnd->host_scribble |
| 613 | #if LINUX_VERSION_CODE < 0x020545 |
| 614 | #define CMD_REQUEST(Cmnd) Cmnd->request.cmd |
| 615 | #else |
| 616 | #define CMD_REQUEST(Cmnd) Cmnd->request->cmd |
| 617 | #endif |
| 618 | |
| 619 | #define CMD_HOST(Cmnd) Cmnd->device->host |
| 620 | #define SCSI_BUS_32(Cmnd) Cmnd->device->channel |
| 621 | #define SCSI_TCN_32(Cmnd) Cmnd->device->id |
| 622 | #define SCSI_LUN_32(Cmnd) Cmnd->device->lun |
| 623 | |
| 624 | |
| 625 | /*****************************************/ |
| 626 | /* ISP Boards supported by this driver */ |
| 627 | /*****************************************/ |
| 628 | |
| 629 | struct qla_boards { |
| 630 | unsigned char name[9]; /* Board ID String */ |
| 631 | int numPorts; /* Number of SCSI ports */ |
| 632 | unsigned short *fwcode; /* pointer to FW array */ |
| 633 | unsigned short *fwlen; /* number of words in array */ |
| 634 | unsigned short *fwstart; /* start address for F/W */ |
| 635 | unsigned char *fwver; /* Ptr to F/W version array */ |
| 636 | }; |
| 637 | |
| 638 | /* NOTE: the last argument in each entry is used to index ql1280_board_tbl */ |
| 639 | static struct pci_device_id qla1280_pci_tbl[] = { |
| 640 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160, |
| 641 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, |
| 642 | #ifdef CONFIG_SCSI_QLOGIC_1280_1040 |
| 643 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020, |
| 644 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, |
| 645 | #endif |
| 646 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080, |
| 647 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, |
| 648 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240, |
| 649 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, |
| 650 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280, |
| 651 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, |
| 652 | {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160, |
| 653 | PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5}, |
| 654 | {0,} |
| 655 | }; |
| 656 | MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl); |
| 657 | |
| 658 | static struct qla_boards ql1280_board_tbl[] = { |
| 659 | /* Name , Number of ports, FW details */ |
| 660 | {"QLA12160", 2, &fw12160i_code01[0], &fw12160i_length01, |
| 661 | &fw12160i_addr01, &fw12160i_version_str[0]}, |
| 662 | {"QLA1040", 1, &risc_code01[0], &risc_code_length01, |
| 663 | &risc_code_addr01, &firmware_version[0]}, |
| 664 | {"QLA1080", 1, &fw1280ei_code01[0], &fw1280ei_length01, |
| 665 | &fw1280ei_addr01, &fw1280ei_version_str[0]}, |
| 666 | {"QLA1240", 2, &fw1280ei_code01[0], &fw1280ei_length01, |
| 667 | &fw1280ei_addr01, &fw1280ei_version_str[0]}, |
| 668 | {"QLA1280", 2, &fw1280ei_code01[0], &fw1280ei_length01, |
| 669 | &fw1280ei_addr01, &fw1280ei_version_str[0]}, |
| 670 | {"QLA10160", 1, &fw12160i_code01[0], &fw12160i_length01, |
| 671 | &fw12160i_addr01, &fw12160i_version_str[0]}, |
| 672 | {" ", 0} |
| 673 | }; |
| 674 | |
| 675 | static int qla1280_verbose = 1; |
| 676 | |
| 677 | #if DEBUG_QLA1280 |
| 678 | static int ql_debug_level = 1; |
| 679 | #define dprintk(level, format, a...) \ |
| 680 | do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0) |
| 681 | #define qla1280_dump_buffer(level, buf, size) \ |
| 682 | if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size) |
| 683 | #define qla1280_print_scsi_cmd(level, cmd) \ |
| 684 | if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd) |
| 685 | #else |
| 686 | #define ql_debug_level 0 |
| 687 | #define dprintk(level, format, a...) do{}while(0) |
| 688 | #define qla1280_dump_buffer(a, b, c) do{}while(0) |
| 689 | #define qla1280_print_scsi_cmd(a, b) do{}while(0) |
| 690 | #endif |
| 691 | |
| 692 | #define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x); |
| 693 | #define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x); |
| 694 | #define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x); |
| 695 | #define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x); |
| 696 | |
| 697 | |
| 698 | static int qla1280_read_nvram(struct scsi_qla_host *ha) |
| 699 | { |
| 700 | uint16_t *wptr; |
| 701 | uint8_t chksum; |
| 702 | int cnt, i; |
| 703 | struct nvram *nv; |
| 704 | |
| 705 | ENTER("qla1280_read_nvram"); |
| 706 | |
| 707 | if (driver_setup.no_nvram) |
| 708 | return 1; |
| 709 | |
| 710 | printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no); |
| 711 | |
| 712 | wptr = (uint16_t *)&ha->nvram; |
| 713 | nv = &ha->nvram; |
| 714 | chksum = 0; |
| 715 | for (cnt = 0; cnt < 3; cnt++) { |
| 716 | *wptr = qla1280_get_nvram_word(ha, cnt); |
| 717 | chksum += *wptr & 0xff; |
| 718 | chksum += (*wptr >> 8) & 0xff; |
| 719 | wptr++; |
| 720 | } |
| 721 | |
| 722 | if (nv->id0 != 'I' || nv->id1 != 'S' || |
| 723 | nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) { |
| 724 | dprintk(2, "Invalid nvram ID or version!\n"); |
| 725 | chksum = 1; |
| 726 | } else { |
| 727 | for (; cnt < sizeof(struct nvram); cnt++) { |
| 728 | *wptr = qla1280_get_nvram_word(ha, cnt); |
| 729 | chksum += *wptr & 0xff; |
| 730 | chksum += (*wptr >> 8) & 0xff; |
| 731 | wptr++; |
| 732 | } |
| 733 | } |
| 734 | |
| 735 | dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x" |
| 736 | " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3, |
| 737 | nv->version); |
| 738 | |
| 739 | |
| 740 | if (chksum) { |
| 741 | if (!driver_setup.no_nvram) |
| 742 | printk(KERN_WARNING "scsi(%ld): Unable to identify or " |
| 743 | "validate NVRAM checksum, using default " |
| 744 | "settings\n", ha->host_no); |
| 745 | ha->nvram_valid = 0; |
| 746 | } else |
| 747 | ha->nvram_valid = 1; |
| 748 | |
| 749 | /* The firmware interface is, um, interesting, in that the |
| 750 | * actual firmware image on the chip is little endian, thus, |
| 751 | * the process of taking that image to the CPU would end up |
| 752 | * little endian. However, the firmare interface requires it |
| 753 | * to be read a word (two bytes) at a time. |
| 754 | * |
| 755 | * The net result of this would be that the word (and |
| 756 | * doubleword) quantites in the firmware would be correct, but |
| 757 | * the bytes would be pairwise reversed. Since most of the |
| 758 | * firmware quantites are, in fact, bytes, we do an extra |
| 759 | * le16_to_cpu() in the firmware read routine. |
| 760 | * |
| 761 | * The upshot of all this is that the bytes in the firmware |
| 762 | * are in the correct places, but the 16 and 32 bit quantites |
| 763 | * are still in little endian format. We fix that up below by |
| 764 | * doing extra reverses on them */ |
| 765 | nv->isp_parameter = cpu_to_le16(nv->isp_parameter); |
| 766 | nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w); |
| 767 | for(i = 0; i < MAX_BUSES; i++) { |
| 768 | nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout); |
| 769 | nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth); |
| 770 | } |
| 771 | dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n"); |
| 772 | LEAVE("qla1280_read_nvram"); |
| 773 | |
| 774 | return chksum; |
| 775 | } |
| 776 | |
| 777 | /************************************************************************** |
| 778 | * qla1280_info |
| 779 | * Return a string describing the driver. |
| 780 | **************************************************************************/ |
| 781 | static const char * |
| 782 | qla1280_info(struct Scsi_Host *host) |
| 783 | { |
| 784 | static char qla1280_scsi_name_buffer[125]; |
| 785 | char *bp; |
| 786 | struct scsi_qla_host *ha; |
| 787 | struct qla_boards *bdp; |
| 788 | |
| 789 | bp = &qla1280_scsi_name_buffer[0]; |
| 790 | ha = (struct scsi_qla_host *)host->hostdata; |
| 791 | bdp = &ql1280_board_tbl[ha->devnum]; |
| 792 | memset(bp, 0, sizeof(qla1280_scsi_name_buffer)); |
| 793 | |
| 794 | sprintf (bp, |
| 795 | "QLogic %s PCI to SCSI Host Adapter\n" |
| 796 | " Firmware version: %2d.%02d.%02d, Driver version %s", |
| 797 | &bdp->name[0], bdp->fwver[0], bdp->fwver[1], bdp->fwver[2], |
| 798 | QLA1280_VERSION); |
| 799 | return bp; |
| 800 | } |
| 801 | |
| 802 | /************************************************************************** |
| 803 | * qla1200_queuecommand |
| 804 | * Queue a command to the controller. |
| 805 | * |
| 806 | * Note: |
| 807 | * The mid-level driver tries to ensures that queuecommand never gets invoked |
| 808 | * concurrently with itself or the interrupt handler (although the |
| 809 | * interrupt handler may call this routine as part of request-completion |
| 810 | * handling). Unfortunely, it sometimes calls the scheduler in interrupt |
| 811 | * context which is a big NO! NO!. |
| 812 | **************************************************************************/ |
| 813 | static int |
| 814 | qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)) |
| 815 | { |
| 816 | struct Scsi_Host *host = cmd->device->host; |
| 817 | struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; |
| 818 | struct srb *sp = (struct srb *)&cmd->SCp; |
| 819 | int status; |
| 820 | |
| 821 | cmd->scsi_done = fn; |
| 822 | sp->cmd = cmd; |
| 823 | sp->flags = 0; |
| 824 | |
| 825 | qla1280_print_scsi_cmd(5, cmd); |
| 826 | |
| 827 | #ifdef QLA_64BIT_PTR |
| 828 | /* |
| 829 | * Using 64 bit commands if the PCI bridge doesn't support it is a |
| 830 | * bit wasteful, however this should really only happen if one's |
| 831 | * PCI controller is completely broken, like the BCM1250. For |
| 832 | * sane hardware this is not an issue. |
| 833 | */ |
| 834 | status = qla1280_64bit_start_scsi(ha, sp); |
| 835 | #else |
| 836 | status = qla1280_32bit_start_scsi(ha, sp); |
| 837 | #endif |
| 838 | return status; |
| 839 | } |
| 840 | |
| 841 | enum action { |
| 842 | ABORT_COMMAND, |
| 843 | ABORT_DEVICE, |
| 844 | DEVICE_RESET, |
| 845 | BUS_RESET, |
| 846 | ADAPTER_RESET, |
| 847 | FAIL |
| 848 | }; |
| 849 | |
| 850 | /* timer action for error action processor */ |
| 851 | static void qla1280_error_wait_timeout(unsigned long __data) |
| 852 | { |
| 853 | struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data; |
| 854 | struct srb *sp = (struct srb *)CMD_SP(cmd); |
| 855 | |
| 856 | complete(sp->wait); |
| 857 | } |
| 858 | |
| 859 | static void qla1280_mailbox_timeout(unsigned long __data) |
| 860 | { |
| 861 | struct scsi_qla_host *ha = (struct scsi_qla_host *)__data; |
| 862 | struct device_reg __iomem *reg; |
| 863 | reg = ha->iobase; |
| 864 | |
| 865 | ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0); |
| 866 | printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, " |
| 867 | "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0], |
| 868 | RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus)); |
| 869 | complete(ha->mailbox_wait); |
| 870 | } |
| 871 | |
| 872 | /************************************************************************** |
| 873 | * qla1200_error_action |
| 874 | * The function will attempt to perform a specified error action and |
| 875 | * wait for the results (or time out). |
| 876 | * |
| 877 | * Input: |
| 878 | * cmd = Linux SCSI command packet of the command that cause the |
| 879 | * bus reset. |
| 880 | * action = error action to take (see action_t) |
| 881 | * |
| 882 | * Returns: |
| 883 | * SUCCESS or FAILED |
| 884 | * |
| 885 | * Note: |
| 886 | * Resetting the bus always succeeds - is has to, otherwise the |
| 887 | * kernel will panic! Try a surgical technique - sending a BUS |
| 888 | * DEVICE RESET message - on the offending target before pulling |
| 889 | * the SCSI bus reset line. |
| 890 | **************************************************************************/ |
| 891 | static int |
| 892 | qla1280_error_action(struct scsi_cmnd *cmd, enum action action) |
| 893 | { |
| 894 | struct scsi_qla_host *ha; |
| 895 | int bus, target, lun; |
| 896 | struct srb *sp; |
| 897 | uint16_t data; |
| 898 | unsigned char *handle; |
| 899 | int result, i; |
| 900 | DECLARE_COMPLETION(wait); |
| 901 | struct timer_list timer; |
| 902 | |
| 903 | ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata); |
| 904 | |
| 905 | dprintk(4, "error_action %i, istatus 0x%04x\n", action, |
| 906 | RD_REG_WORD(&ha->iobase->istatus)); |
| 907 | |
| 908 | dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n", |
| 909 | RD_REG_WORD(&ha->iobase->host_cmd), |
| 910 | RD_REG_WORD(&ha->iobase->ictrl), jiffies); |
| 911 | |
| 912 | ENTER("qla1280_error_action"); |
| 913 | if (qla1280_verbose) |
| 914 | printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, " |
| 915 | "Handle=0x%p, action=0x%x\n", |
| 916 | ha->host_no, cmd, CMD_HANDLE(cmd), action); |
| 917 | |
| 918 | if (cmd == NULL) { |
| 919 | printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL " |
| 920 | "si_Cmnd pointer, failing.\n"); |
| 921 | LEAVE("qla1280_error_action"); |
| 922 | return FAILED; |
| 923 | } |
| 924 | |
| 925 | ha = (struct scsi_qla_host *)cmd->device->host->hostdata; |
| 926 | sp = (struct srb *)CMD_SP(cmd); |
| 927 | handle = CMD_HANDLE(cmd); |
| 928 | |
| 929 | /* Check for pending interrupts. */ |
| 930 | data = qla1280_debounce_register(&ha->iobase->istatus); |
| 931 | /* |
| 932 | * The io_request_lock is held when the reset handler is called, hence |
| 933 | * the interrupt handler cannot be running in parallel as it also |
| 934 | * grabs the lock. /Jes |
| 935 | */ |
| 936 | if (data & RISC_INT) |
| 937 | qla1280_isr(ha, &ha->done_q); |
| 938 | |
| 939 | /* |
| 940 | * Determine the suggested action that the mid-level driver wants |
| 941 | * us to perform. |
| 942 | */ |
| 943 | if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) { |
| 944 | if(action == ABORT_COMMAND) { |
| 945 | /* we never got this command */ |
| 946 | printk(KERN_INFO "qla1280: Aborting a NULL handle\n"); |
| 947 | return SUCCESS; /* no action - we don't have command */ |
| 948 | } |
| 949 | } else { |
| 950 | sp->wait = &wait; |
| 951 | } |
| 952 | |
| 953 | bus = SCSI_BUS_32(cmd); |
| 954 | target = SCSI_TCN_32(cmd); |
| 955 | lun = SCSI_LUN_32(cmd); |
| 956 | |
| 957 | /* Overloading result. Here it means the success or fail of the |
| 958 | * *issue* of the action. When we return from the routine, it must |
| 959 | * mean the actual success or fail of the action */ |
| 960 | result = FAILED; |
| 961 | switch (action) { |
| 962 | case FAIL: |
| 963 | break; |
| 964 | |
| 965 | case ABORT_COMMAND: |
| 966 | if ((sp->flags & SRB_ABORT_PENDING)) { |
| 967 | printk(KERN_WARNING |
| 968 | "scsi(): Command has a pending abort " |
| 969 | "message - ABORT_PENDING.\n"); |
| 970 | /* This should technically be impossible since we |
| 971 | * now wait for abort completion */ |
| 972 | break; |
| 973 | } |
| 974 | |
| 975 | for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { |
| 976 | if (sp == ha->outstanding_cmds[i]) { |
| 977 | dprintk(1, "qla1280: RISC aborting command\n"); |
| 978 | if (qla1280_abort_command(ha, sp, i) == 0) |
| 979 | result = SUCCESS; |
| 980 | else { |
| 981 | /* |
| 982 | * Since we don't know what might |
| 983 | * have happend to the command, it |
| 984 | * is unsafe to remove it from the |
| 985 | * device's queue at this point. |
| 986 | * Wait and let the escalation |
| 987 | * process take care of it. |
| 988 | */ |
| 989 | printk(KERN_WARNING |
| 990 | "scsi(%li:%i:%i:%i): Unable" |
| 991 | " to abort command!\n", |
| 992 | ha->host_no, bus, target, lun); |
| 993 | } |
| 994 | } |
| 995 | } |
| 996 | break; |
| 997 | |
| 998 | case ABORT_DEVICE: |
| 999 | ha->flags.in_reset = 1; |
| 1000 | if (qla1280_verbose) |
| 1001 | printk(KERN_INFO |
| 1002 | "scsi(%ld:%d:%d:%d): Queueing abort device " |
| 1003 | "command.\n", ha->host_no, bus, target, lun); |
| 1004 | if (qla1280_abort_device(ha, bus, target, lun) == 0) |
| 1005 | result = SUCCESS; |
| 1006 | break; |
| 1007 | |
| 1008 | case DEVICE_RESET: |
| 1009 | if (qla1280_verbose) |
| 1010 | printk(KERN_INFO |
| 1011 | "scsi(%ld:%d:%d:%d): Queueing device reset " |
| 1012 | "command.\n", ha->host_no, bus, target, lun); |
| 1013 | ha->flags.in_reset = 1; |
| 1014 | if (qla1280_device_reset(ha, bus, target) == 0) |
| 1015 | result = SUCCESS; |
| 1016 | break; |
| 1017 | |
| 1018 | case BUS_RESET: |
| 1019 | if (qla1280_verbose) |
| 1020 | printk(KERN_INFO "qla1280(%ld:%d): Issuing BUS " |
| 1021 | "DEVICE RESET\n", ha->host_no, bus); |
| 1022 | ha->flags.in_reset = 1; |
| 1023 | if (qla1280_bus_reset(ha, bus == 0)) |
| 1024 | result = SUCCESS; |
| 1025 | |
| 1026 | break; |
| 1027 | |
| 1028 | case ADAPTER_RESET: |
| 1029 | default: |
| 1030 | if (qla1280_verbose) { |
| 1031 | printk(KERN_INFO |
| 1032 | "scsi(%ld): Issued ADAPTER RESET\n", |
| 1033 | ha->host_no); |
| 1034 | printk(KERN_INFO "scsi(%ld): I/O processing will " |
| 1035 | "continue automatically\n", ha->host_no); |
| 1036 | } |
| 1037 | ha->flags.reset_active = 1; |
| 1038 | /* |
| 1039 | * We restarted all of the commands automatically, so the |
| 1040 | * mid-level code can expect completions momentitarily. |
| 1041 | */ |
| 1042 | if (qla1280_abort_isp(ha) == 0) |
| 1043 | result = SUCCESS; |
| 1044 | |
| 1045 | ha->flags.reset_active = 0; |
| 1046 | } |
| 1047 | |
| 1048 | if (!list_empty(&ha->done_q)) |
| 1049 | qla1280_done(ha); |
| 1050 | ha->flags.in_reset = 0; |
| 1051 | |
| 1052 | /* If we didn't manage to issue the action, or we have no |
| 1053 | * command to wait for, exit here */ |
| 1054 | if (result == FAILED || handle == NULL || |
| 1055 | handle == (unsigned char *)INVALID_HANDLE) { |
| 1056 | /* |
| 1057 | * Clear completion queue to avoid qla1280_done() trying |
| 1058 | * to complete the command at a later stage after we |
| 1059 | * have exited the current context |
| 1060 | */ |
| 1061 | sp->wait = NULL; |
| 1062 | goto leave; |
| 1063 | } |
| 1064 | |
| 1065 | /* set up a timer just in case we're really jammed */ |
| 1066 | init_timer(&timer); |
| 1067 | timer.expires = jiffies + 4*HZ; |
| 1068 | timer.data = (unsigned long)cmd; |
| 1069 | timer.function = qla1280_error_wait_timeout; |
| 1070 | add_timer(&timer); |
| 1071 | |
| 1072 | /* wait for the action to complete (or the timer to expire) */ |
| 1073 | spin_unlock_irq(HOST_LOCK); |
| 1074 | wait_for_completion(&wait); |
| 1075 | del_timer_sync(&timer); |
| 1076 | spin_lock_irq(HOST_LOCK); |
| 1077 | sp->wait = NULL; |
| 1078 | |
| 1079 | /* the only action we might get a fail for is abort */ |
| 1080 | if (action == ABORT_COMMAND) { |
| 1081 | if(sp->flags & SRB_ABORTED) |
| 1082 | result = SUCCESS; |
| 1083 | else |
| 1084 | result = FAILED; |
| 1085 | } |
| 1086 | |
| 1087 | leave: |
| 1088 | dprintk(1, "RESET returning %d\n", result); |
| 1089 | |
| 1090 | LEAVE("qla1280_error_action"); |
| 1091 | return result; |
| 1092 | } |
| 1093 | |
| 1094 | /************************************************************************** |
| 1095 | * qla1280_abort |
| 1096 | * Abort the specified SCSI command(s). |
| 1097 | **************************************************************************/ |
| 1098 | static int |
| 1099 | qla1280_eh_abort(struct scsi_cmnd * cmd) |
| 1100 | { |
| 1101 | return qla1280_error_action(cmd, ABORT_COMMAND); |
| 1102 | } |
| 1103 | |
| 1104 | /************************************************************************** |
| 1105 | * qla1280_device_reset |
| 1106 | * Reset the specified SCSI device |
| 1107 | **************************************************************************/ |
| 1108 | static int |
| 1109 | qla1280_eh_device_reset(struct scsi_cmnd *cmd) |
| 1110 | { |
| 1111 | return qla1280_error_action(cmd, DEVICE_RESET); |
| 1112 | } |
| 1113 | |
| 1114 | /************************************************************************** |
| 1115 | * qla1280_bus_reset |
| 1116 | * Reset the specified bus. |
| 1117 | **************************************************************************/ |
| 1118 | static int |
| 1119 | qla1280_eh_bus_reset(struct scsi_cmnd *cmd) |
| 1120 | { |
| 1121 | return qla1280_error_action(cmd, BUS_RESET); |
| 1122 | } |
| 1123 | |
| 1124 | /************************************************************************** |
| 1125 | * qla1280_adapter_reset |
| 1126 | * Reset the specified adapter (both channels) |
| 1127 | **************************************************************************/ |
| 1128 | static int |
| 1129 | qla1280_eh_adapter_reset(struct scsi_cmnd *cmd) |
| 1130 | { |
| 1131 | return qla1280_error_action(cmd, ADAPTER_RESET); |
| 1132 | } |
| 1133 | |
| 1134 | static int |
| 1135 | qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev, |
| 1136 | sector_t capacity, int geom[]) |
| 1137 | { |
| 1138 | int heads, sectors, cylinders; |
| 1139 | |
| 1140 | heads = 64; |
| 1141 | sectors = 32; |
| 1142 | cylinders = (unsigned long)capacity / (heads * sectors); |
| 1143 | if (cylinders > 1024) { |
| 1144 | heads = 255; |
| 1145 | sectors = 63; |
| 1146 | cylinders = (unsigned long)capacity / (heads * sectors); |
| 1147 | /* if (cylinders > 1023) |
| 1148 | cylinders = 1023; */ |
| 1149 | } |
| 1150 | |
| 1151 | geom[0] = heads; |
| 1152 | geom[1] = sectors; |
| 1153 | geom[2] = cylinders; |
| 1154 | |
| 1155 | return 0; |
| 1156 | } |
| 1157 | |
| 1158 | #if LINUX_VERSION_CODE < 0x020600 |
| 1159 | static int |
| 1160 | qla1280_detect(Scsi_Host_Template *template) |
| 1161 | { |
| 1162 | struct pci_device_id *id = &qla1280_pci_tbl[0]; |
| 1163 | struct pci_dev *pdev = NULL; |
| 1164 | int num_hosts = 0; |
| 1165 | |
| 1166 | if (sizeof(struct srb) > sizeof(Scsi_Pointer)) { |
| 1167 | printk(KERN_WARNING |
| 1168 | "qla1280: struct srb too big, aborting\n"); |
| 1169 | return 0; |
| 1170 | } |
| 1171 | |
| 1172 | if ((DMA_BIDIRECTIONAL != PCI_DMA_BIDIRECTIONAL) || |
| 1173 | (DMA_TO_DEVICE != PCI_DMA_TODEVICE) || |
| 1174 | (DMA_FROM_DEVICE != PCI_DMA_FROMDEVICE) || |
| 1175 | (DMA_NONE != PCI_DMA_NONE)) { |
| 1176 | printk(KERN_WARNING |
| 1177 | "qla1280: dma direction bits don't match\n"); |
| 1178 | return 0; |
| 1179 | } |
| 1180 | |
| 1181 | #ifdef MODULE |
| 1182 | /* |
| 1183 | * If we are called as a module, the qla1280 pointer may not be null |
| 1184 | * and it would point to our bootup string, just like on the lilo |
| 1185 | * command line. IF not NULL, then process this config string with |
| 1186 | * qla1280_setup |
| 1187 | * |
| 1188 | * Boot time Options |
| 1189 | * To add options at boot time add a line to your lilo.conf file like: |
| 1190 | * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}" |
| 1191 | * which will result in the first four devices on the first two |
| 1192 | * controllers being set to a tagged queue depth of 32. |
| 1193 | */ |
| 1194 | if (qla1280) |
| 1195 | qla1280_setup(qla1280); |
| 1196 | #endif |
| 1197 | |
| 1198 | /* First Initialize QLA12160 on PCI Bus 1 Dev 2 */ |
| 1199 | while ((pdev = pci_find_device(id->vendor, id->device, pdev))) { |
| 1200 | if (pdev->bus->number == 1 && PCI_SLOT(pdev->devfn) == 2) { |
| 1201 | if (!qla1280_probe_one(pdev, id)) |
| 1202 | num_hosts++; |
| 1203 | } |
| 1204 | } |
| 1205 | |
| 1206 | pdev = NULL; |
| 1207 | /* Try and find each different type of adapter we support */ |
| 1208 | for (id = &qla1280_pci_tbl[0]; id->device; id++) { |
| 1209 | while ((pdev = pci_find_device(id->vendor, id->device, pdev))) { |
| 1210 | /* |
| 1211 | * skip QLA12160 already initialized on |
| 1212 | * PCI Bus 1 Dev 2 since we already initialized |
| 1213 | * and presented it |
| 1214 | */ |
| 1215 | if (id->device == PCI_DEVICE_ID_QLOGIC_ISP12160 && |
| 1216 | pdev->bus->number == 1 && |
| 1217 | PCI_SLOT(pdev->devfn) == 2) |
| 1218 | continue; |
| 1219 | |
| 1220 | if (!qla1280_probe_one(pdev, id)) |
| 1221 | num_hosts++; |
| 1222 | } |
| 1223 | } |
| 1224 | |
| 1225 | return num_hosts; |
| 1226 | } |
| 1227 | |
| 1228 | /* |
| 1229 | * This looks a bit ugly as we could just pass down host to |
| 1230 | * qla1280_remove_one, but I want to keep qla1280_release purely a wrapper |
| 1231 | * around pci_driver::remove as used from 2.6 onwards. |
| 1232 | */ |
| 1233 | static int |
| 1234 | qla1280_release(struct Scsi_Host *host) |
| 1235 | { |
| 1236 | struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; |
| 1237 | |
| 1238 | qla1280_remove_one(ha->pdev); |
| 1239 | return 0; |
| 1240 | } |
| 1241 | |
| 1242 | static int |
| 1243 | qla1280_biosparam_old(Disk * disk, kdev_t dev, int geom[]) |
| 1244 | { |
| 1245 | return qla1280_biosparam(disk->device, NULL, disk->capacity, geom); |
| 1246 | } |
| 1247 | #endif |
| 1248 | |
| 1249 | /************************************************************************** |
| 1250 | * qla1280_intr_handler |
| 1251 | * Handles the H/W interrupt |
| 1252 | **************************************************************************/ |
| 1253 | static irqreturn_t |
| 1254 | qla1280_intr_handler(int irq, void *dev_id, struct pt_regs *regs) |
| 1255 | { |
| 1256 | struct scsi_qla_host *ha; |
| 1257 | struct device_reg __iomem *reg; |
| 1258 | u16 data; |
| 1259 | int handled = 0; |
| 1260 | |
| 1261 | ENTER_INTR ("qla1280_intr_handler"); |
| 1262 | ha = (struct scsi_qla_host *)dev_id; |
| 1263 | |
| 1264 | spin_lock(HOST_LOCK); |
| 1265 | |
| 1266 | ha->isr_count++; |
| 1267 | reg = ha->iobase; |
| 1268 | |
| 1269 | WRT_REG_WORD(®->ictrl, 0); /* disable our interrupt. */ |
| 1270 | |
| 1271 | data = qla1280_debounce_register(®->istatus); |
| 1272 | /* Check for pending interrupts. */ |
| 1273 | if (data & RISC_INT) { |
| 1274 | qla1280_isr(ha, &ha->done_q); |
| 1275 | handled = 1; |
| 1276 | } |
| 1277 | if (!list_empty(&ha->done_q)) |
| 1278 | qla1280_done(ha); |
| 1279 | |
| 1280 | spin_unlock(HOST_LOCK); |
| 1281 | |
| 1282 | /* enable our interrupt. */ |
| 1283 | WRT_REG_WORD(®->ictrl, (ISP_EN_INT | ISP_EN_RISC)); |
| 1284 | |
| 1285 | LEAVE_INTR("qla1280_intr_handler"); |
| 1286 | return IRQ_RETVAL(handled); |
| 1287 | } |
| 1288 | |
| 1289 | |
| 1290 | static int |
| 1291 | qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target) |
| 1292 | { |
| 1293 | uint8_t mr; |
| 1294 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 1295 | struct nvram *nv; |
| 1296 | int status; |
| 1297 | |
| 1298 | nv = &ha->nvram; |
| 1299 | |
| 1300 | mr = BIT_3 | BIT_2 | BIT_1 | BIT_0; |
| 1301 | |
| 1302 | /* Set Target Parameters. */ |
| 1303 | mb[0] = MBC_SET_TARGET_PARAMETERS; |
| 1304 | mb[1] = (uint16_t) (bus ? target | BIT_7 : target); |
| 1305 | mb[1] <<= 8; |
| 1306 | |
| 1307 | mb[2] = (nv->bus[bus].target[target].parameter.c << 8); |
| 1308 | |
| 1309 | if (IS_ISP1x160(ha)) { |
| 1310 | mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5; |
| 1311 | mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8) | |
| 1312 | nv->bus[bus].target[target].sync_period; |
| 1313 | mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) | |
| 1314 | nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width; |
| 1315 | mr |= BIT_6; |
| 1316 | } else { |
| 1317 | mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8) | |
| 1318 | nv->bus[bus].target[target].sync_period; |
| 1319 | } |
| 1320 | |
| 1321 | status = qla1280_mailbox_command(ha, mr, &mb[0]); |
| 1322 | |
| 1323 | if (status) |
| 1324 | printk(KERN_WARNING "scsi(%ld:%i:%i): " |
| 1325 | "qla1280_set_target_parameters() failed\n", |
| 1326 | ha->host_no, bus, target); |
| 1327 | return status; |
| 1328 | } |
| 1329 | |
| 1330 | |
| 1331 | /************************************************************************** |
| 1332 | * qla1280_slave_configure |
| 1333 | * |
| 1334 | * Description: |
| 1335 | * Determines the queue depth for a given device. There are two ways |
| 1336 | * a queue depth can be obtained for a tagged queueing device. One |
| 1337 | * way is the default queue depth which is determined by whether |
| 1338 | * If it is defined, then it is used |
| 1339 | * as the default queue depth. Otherwise, we use either 4 or 8 as the |
| 1340 | * default queue depth (dependent on the number of hardware SCBs). |
| 1341 | **************************************************************************/ |
| 1342 | static int |
| 1343 | qla1280_slave_configure(struct scsi_device *device) |
| 1344 | { |
| 1345 | struct scsi_qla_host *ha; |
| 1346 | int default_depth = 3; |
| 1347 | int bus = device->channel; |
| 1348 | int target = device->id; |
| 1349 | int status = 0; |
| 1350 | struct nvram *nv; |
| 1351 | unsigned long flags; |
| 1352 | |
| 1353 | ha = (struct scsi_qla_host *)device->host->hostdata; |
| 1354 | nv = &ha->nvram; |
| 1355 | |
| 1356 | if (qla1280_check_for_dead_scsi_bus(ha, bus)) |
| 1357 | return 1; |
| 1358 | |
| 1359 | if (device->tagged_supported && |
| 1360 | (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { |
| 1361 | scsi_adjust_queue_depth(device, MSG_ORDERED_TAG, |
| 1362 | ha->bus_settings[bus].hiwat); |
| 1363 | } else { |
| 1364 | scsi_adjust_queue_depth(device, 0, default_depth); |
| 1365 | } |
| 1366 | |
| 1367 | #if LINUX_VERSION_CODE > 0x020500 |
| 1368 | nv->bus[bus].target[target].parameter.f.enable_sync = device->sdtr; |
| 1369 | nv->bus[bus].target[target].parameter.f.enable_wide = device->wdtr; |
| 1370 | nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr; |
| 1371 | #endif |
| 1372 | |
| 1373 | if (driver_setup.no_sync || |
| 1374 | (driver_setup.sync_mask && |
| 1375 | (~driver_setup.sync_mask & (1 << target)))) |
| 1376 | nv->bus[bus].target[target].parameter.f.enable_sync = 0; |
| 1377 | if (driver_setup.no_wide || |
| 1378 | (driver_setup.wide_mask && |
| 1379 | (~driver_setup.wide_mask & (1 << target)))) |
| 1380 | nv->bus[bus].target[target].parameter.f.enable_wide = 0; |
| 1381 | if (IS_ISP1x160(ha)) { |
| 1382 | if (driver_setup.no_ppr || |
| 1383 | (driver_setup.ppr_mask && |
| 1384 | (~driver_setup.ppr_mask & (1 << target)))) |
| 1385 | nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0; |
| 1386 | } |
| 1387 | |
| 1388 | spin_lock_irqsave(HOST_LOCK, flags); |
| 1389 | if (nv->bus[bus].target[target].parameter.f.enable_sync) |
| 1390 | status = qla1280_set_target_parameters(ha, bus, target); |
| 1391 | qla1280_get_target_parameters(ha, device); |
| 1392 | spin_unlock_irqrestore(HOST_LOCK, flags); |
| 1393 | return status; |
| 1394 | } |
| 1395 | |
| 1396 | #if LINUX_VERSION_CODE < 0x020545 |
| 1397 | /************************************************************************** |
| 1398 | * qla1280_select_queue_depth |
| 1399 | * |
| 1400 | * Sets the queue depth for each SCSI device hanging off the input |
| 1401 | * host adapter. We use a queue depth of 2 for devices that do not |
| 1402 | * support tagged queueing. |
| 1403 | **************************************************************************/ |
| 1404 | static void |
| 1405 | qla1280_select_queue_depth(struct Scsi_Host *host, struct scsi_device *sdev_q) |
| 1406 | { |
| 1407 | struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; |
| 1408 | struct scsi_device *sdev; |
| 1409 | |
| 1410 | ENTER("qla1280_select_queue_depth"); |
| 1411 | for (sdev = sdev_q; sdev; sdev = sdev->next) |
| 1412 | if (sdev->host == host) |
| 1413 | qla1280_slave_configure(sdev); |
| 1414 | |
| 1415 | if (sdev_q) |
| 1416 | qla1280_check_for_dead_scsi_bus(ha, sdev_q->channel); |
| 1417 | LEAVE("qla1280_select_queue_depth"); |
| 1418 | } |
| 1419 | #endif |
| 1420 | |
| 1421 | /* |
| 1422 | * qla1280_done |
| 1423 | * Process completed commands. |
| 1424 | * |
| 1425 | * Input: |
| 1426 | * ha = adapter block pointer. |
| 1427 | * done_q = done queue. |
| 1428 | */ |
| 1429 | static void |
| 1430 | qla1280_done(struct scsi_qla_host *ha) |
| 1431 | { |
| 1432 | struct srb *sp; |
| 1433 | struct list_head *done_q; |
| 1434 | int bus, target, lun; |
| 1435 | struct scsi_cmnd *cmd; |
| 1436 | |
| 1437 | ENTER("qla1280_done"); |
| 1438 | |
| 1439 | done_q = &ha->done_q; |
| 1440 | |
| 1441 | while (!list_empty(done_q)) { |
| 1442 | sp = list_entry(done_q->next, struct srb, list); |
| 1443 | |
| 1444 | list_del(&sp->list); |
| 1445 | |
| 1446 | cmd = sp->cmd; |
| 1447 | bus = SCSI_BUS_32(cmd); |
| 1448 | target = SCSI_TCN_32(cmd); |
| 1449 | lun = SCSI_LUN_32(cmd); |
| 1450 | |
| 1451 | switch ((CMD_RESULT(cmd) >> 16)) { |
| 1452 | case DID_RESET: |
| 1453 | /* Issue marker command. */ |
| 1454 | qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); |
| 1455 | break; |
| 1456 | case DID_ABORT: |
| 1457 | sp->flags &= ~SRB_ABORT_PENDING; |
| 1458 | sp->flags |= SRB_ABORTED; |
| 1459 | if (sp->flags & SRB_TIMEOUT) |
| 1460 | CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16; |
| 1461 | break; |
| 1462 | default: |
| 1463 | break; |
| 1464 | } |
| 1465 | |
| 1466 | /* Release memory used for this I/O */ |
| 1467 | if (cmd->use_sg) { |
| 1468 | pci_unmap_sg(ha->pdev, cmd->request_buffer, |
| 1469 | cmd->use_sg, cmd->sc_data_direction); |
| 1470 | } else if (cmd->request_bufflen) { |
| 1471 | pci_unmap_single(ha->pdev, sp->saved_dma_handle, |
| 1472 | cmd->request_bufflen, |
| 1473 | cmd->sc_data_direction); |
| 1474 | } |
| 1475 | |
| 1476 | /* Call the mid-level driver interrupt handler */ |
| 1477 | CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE; |
| 1478 | ha->actthreads--; |
| 1479 | |
| 1480 | #if LINUX_VERSION_CODE < 0x020500 |
| 1481 | if (cmd->cmnd[0] == INQUIRY) |
| 1482 | qla1280_get_target_options(cmd, ha); |
| 1483 | #endif |
| 1484 | (*(cmd)->scsi_done)(cmd); |
| 1485 | |
| 1486 | if(sp->wait != NULL) |
| 1487 | complete(sp->wait); |
| 1488 | } |
| 1489 | LEAVE("qla1280_done"); |
| 1490 | } |
| 1491 | |
| 1492 | /* |
| 1493 | * Translates a ISP error to a Linux SCSI error |
| 1494 | */ |
| 1495 | static int |
| 1496 | qla1280_return_status(struct response * sts, struct scsi_cmnd *cp) |
| 1497 | { |
| 1498 | int host_status = DID_ERROR; |
| 1499 | uint16_t comp_status = le16_to_cpu(sts->comp_status); |
| 1500 | uint16_t state_flags = le16_to_cpu(sts->state_flags); |
| 1501 | uint16_t residual_length = le16_to_cpu(sts->residual_length); |
| 1502 | uint16_t scsi_status = le16_to_cpu(sts->scsi_status); |
| 1503 | #if DEBUG_QLA1280_INTR |
| 1504 | static char *reason[] = { |
| 1505 | "DID_OK", |
| 1506 | "DID_NO_CONNECT", |
| 1507 | "DID_BUS_BUSY", |
| 1508 | "DID_TIME_OUT", |
| 1509 | "DID_BAD_TARGET", |
| 1510 | "DID_ABORT", |
| 1511 | "DID_PARITY", |
| 1512 | "DID_ERROR", |
| 1513 | "DID_RESET", |
| 1514 | "DID_BAD_INTR" |
| 1515 | }; |
| 1516 | #endif /* DEBUG_QLA1280_INTR */ |
| 1517 | |
| 1518 | ENTER("qla1280_return_status"); |
| 1519 | |
| 1520 | #if DEBUG_QLA1280_INTR |
| 1521 | /* |
| 1522 | dprintk(1, "qla1280_return_status: compl status = 0x%04x\n", |
| 1523 | comp_status); |
| 1524 | */ |
| 1525 | #endif |
| 1526 | |
| 1527 | switch (comp_status) { |
| 1528 | case CS_COMPLETE: |
| 1529 | host_status = DID_OK; |
| 1530 | break; |
| 1531 | |
| 1532 | case CS_INCOMPLETE: |
| 1533 | if (!(state_flags & SF_GOT_BUS)) |
| 1534 | host_status = DID_NO_CONNECT; |
| 1535 | else if (!(state_flags & SF_GOT_TARGET)) |
| 1536 | host_status = DID_BAD_TARGET; |
| 1537 | else if (!(state_flags & SF_SENT_CDB)) |
| 1538 | host_status = DID_ERROR; |
| 1539 | else if (!(state_flags & SF_TRANSFERRED_DATA)) |
| 1540 | host_status = DID_ERROR; |
| 1541 | else if (!(state_flags & SF_GOT_STATUS)) |
| 1542 | host_status = DID_ERROR; |
| 1543 | else if (!(state_flags & SF_GOT_SENSE)) |
| 1544 | host_status = DID_ERROR; |
| 1545 | break; |
| 1546 | |
| 1547 | case CS_RESET: |
| 1548 | host_status = DID_RESET; |
| 1549 | break; |
| 1550 | |
| 1551 | case CS_ABORTED: |
| 1552 | host_status = DID_ABORT; |
| 1553 | break; |
| 1554 | |
| 1555 | case CS_TIMEOUT: |
| 1556 | host_status = DID_TIME_OUT; |
| 1557 | break; |
| 1558 | |
| 1559 | case CS_DATA_OVERRUN: |
| 1560 | dprintk(2, "Data overrun 0x%x\n", residual_length); |
| 1561 | dprintk(2, "qla1280_isr: response packet data\n"); |
| 1562 | qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE); |
| 1563 | host_status = DID_ERROR; |
| 1564 | break; |
| 1565 | |
| 1566 | case CS_DATA_UNDERRUN: |
| 1567 | if ((cp->request_bufflen - residual_length) < |
| 1568 | cp->underflow) { |
| 1569 | printk(KERN_WARNING |
| 1570 | "scsi: Underflow detected - retrying " |
| 1571 | "command.\n"); |
| 1572 | host_status = DID_ERROR; |
| 1573 | } else |
| 1574 | host_status = DID_OK; |
| 1575 | break; |
| 1576 | |
| 1577 | default: |
| 1578 | host_status = DID_ERROR; |
| 1579 | break; |
| 1580 | } |
| 1581 | |
| 1582 | #if DEBUG_QLA1280_INTR |
| 1583 | dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n", |
| 1584 | reason[host_status], scsi_status); |
| 1585 | #endif |
| 1586 | |
| 1587 | LEAVE("qla1280_return_status"); |
| 1588 | |
| 1589 | return (scsi_status & 0xff) | (host_status << 16); |
| 1590 | } |
| 1591 | |
| 1592 | /****************************************************************************/ |
| 1593 | /* QLogic ISP1280 Hardware Support Functions. */ |
| 1594 | /****************************************************************************/ |
| 1595 | |
| 1596 | /* |
| 1597 | * qla2100_enable_intrs |
| 1598 | * qla2100_disable_intrs |
| 1599 | * |
| 1600 | * Input: |
| 1601 | * ha = adapter block pointer. |
| 1602 | * |
| 1603 | * Returns: |
| 1604 | * None |
| 1605 | */ |
| 1606 | static inline void |
| 1607 | qla1280_enable_intrs(struct scsi_qla_host *ha) |
| 1608 | { |
| 1609 | struct device_reg __iomem *reg; |
| 1610 | |
| 1611 | reg = ha->iobase; |
| 1612 | /* enable risc and host interrupts */ |
| 1613 | WRT_REG_WORD(®->ictrl, (ISP_EN_INT | ISP_EN_RISC)); |
| 1614 | RD_REG_WORD(®->ictrl); /* PCI Posted Write flush */ |
| 1615 | ha->flags.ints_enabled = 1; |
| 1616 | } |
| 1617 | |
| 1618 | static inline void |
| 1619 | qla1280_disable_intrs(struct scsi_qla_host *ha) |
| 1620 | { |
| 1621 | struct device_reg __iomem *reg; |
| 1622 | |
| 1623 | reg = ha->iobase; |
| 1624 | /* disable risc and host interrupts */ |
| 1625 | WRT_REG_WORD(®->ictrl, 0); |
| 1626 | RD_REG_WORD(®->ictrl); /* PCI Posted Write flush */ |
| 1627 | ha->flags.ints_enabled = 0; |
| 1628 | } |
| 1629 | |
| 1630 | /* |
| 1631 | * qla1280_initialize_adapter |
| 1632 | * Initialize board. |
| 1633 | * |
| 1634 | * Input: |
| 1635 | * ha = adapter block pointer. |
| 1636 | * |
| 1637 | * Returns: |
| 1638 | * 0 = success |
| 1639 | */ |
| 1640 | static int __devinit |
| 1641 | qla1280_initialize_adapter(struct scsi_qla_host *ha) |
| 1642 | { |
| 1643 | struct device_reg __iomem *reg; |
| 1644 | int status; |
| 1645 | int bus; |
| 1646 | #if LINUX_VERSION_CODE > 0x020500 |
| 1647 | unsigned long flags; |
| 1648 | #endif |
| 1649 | |
| 1650 | ENTER("qla1280_initialize_adapter"); |
| 1651 | |
| 1652 | /* Clear adapter flags. */ |
| 1653 | ha->flags.online = 0; |
| 1654 | ha->flags.disable_host_adapter = 0; |
| 1655 | ha->flags.reset_active = 0; |
| 1656 | ha->flags.abort_isp_active = 0; |
| 1657 | |
| 1658 | ha->flags.ints_enabled = 0; |
| 1659 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) |
| 1660 | if (ia64_platform_is("sn2")) { |
| 1661 | printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA " |
| 1662 | "dual channel lockup workaround\n", ha->host_no); |
| 1663 | ha->flags.use_pci_vchannel = 1; |
| 1664 | driver_setup.no_nvram = 1; |
| 1665 | } |
| 1666 | #endif |
| 1667 | |
| 1668 | /* TODO: implement support for the 1040 nvram format */ |
| 1669 | if (IS_ISP1040(ha)) |
| 1670 | driver_setup.no_nvram = 1; |
| 1671 | |
| 1672 | dprintk(1, "Configure PCI space for adapter...\n"); |
| 1673 | |
| 1674 | reg = ha->iobase; |
| 1675 | |
| 1676 | /* Insure mailbox registers are free. */ |
| 1677 | WRT_REG_WORD(®->semaphore, 0); |
| 1678 | WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); |
| 1679 | WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT); |
| 1680 | RD_REG_WORD(®->host_cmd); |
| 1681 | |
| 1682 | if (qla1280_read_nvram(ha)) { |
| 1683 | dprintk(2, "qla1280_initialize_adapter: failed to read " |
| 1684 | "NVRAM\n"); |
| 1685 | } |
| 1686 | |
| 1687 | #if LINUX_VERSION_CODE >= 0x020500 |
| 1688 | /* |
| 1689 | * It's necessary to grab the spin here as qla1280_mailbox_command |
| 1690 | * needs to be able to drop the lock unconditionally to wait |
| 1691 | * for completion. |
| 1692 | * In 2.4 ->detect is called with the io_request_lock held. |
| 1693 | */ |
| 1694 | spin_lock_irqsave(HOST_LOCK, flags); |
| 1695 | #endif |
| 1696 | |
| 1697 | status = qla1280_load_firmware(ha); |
| 1698 | if (status) { |
| 1699 | printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n", |
| 1700 | ha->host_no); |
| 1701 | goto out; |
| 1702 | } |
| 1703 | |
| 1704 | /* Setup adapter based on NVRAM parameters. */ |
| 1705 | dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no); |
| 1706 | qla1280_nvram_config(ha); |
| 1707 | |
| 1708 | if (ha->flags.disable_host_adapter) { |
| 1709 | status = 1; |
| 1710 | goto out; |
| 1711 | } |
| 1712 | |
| 1713 | status = qla1280_init_rings(ha); |
| 1714 | if (status) |
| 1715 | goto out; |
| 1716 | |
| 1717 | /* Issue SCSI reset, if we can't reset twice then bus is dead */ |
| 1718 | for (bus = 0; bus < ha->ports; bus++) { |
| 1719 | if (!ha->bus_settings[bus].disable_scsi_reset && |
| 1720 | qla1280_bus_reset(ha, bus) && |
| 1721 | qla1280_bus_reset(ha, bus)) |
| 1722 | ha->bus_settings[bus].scsi_bus_dead = 1; |
| 1723 | } |
| 1724 | |
| 1725 | ha->flags.online = 1; |
| 1726 | out: |
| 1727 | #if LINUX_VERSION_CODE >= 0x020500 |
| 1728 | spin_unlock_irqrestore(HOST_LOCK, flags); |
| 1729 | #endif |
| 1730 | if (status) |
| 1731 | dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n"); |
| 1732 | |
| 1733 | LEAVE("qla1280_initialize_adapter"); |
| 1734 | return status; |
| 1735 | } |
| 1736 | |
| 1737 | |
| 1738 | /* |
| 1739 | * ISP Firmware Test |
| 1740 | * Checks if present version of RISC firmware is older than |
| 1741 | * driver firmware. |
| 1742 | * |
| 1743 | * Input: |
| 1744 | * ha = adapter block pointer. |
| 1745 | * |
| 1746 | * Returns: |
| 1747 | * 0 = firmware does not need to be loaded. |
| 1748 | */ |
| 1749 | static int |
| 1750 | qla1280_isp_firmware(struct scsi_qla_host *ha) |
| 1751 | { |
| 1752 | struct nvram *nv = (struct nvram *) ha->response_ring; |
| 1753 | int status = 0; /* dg 2/27 always loads RISC */ |
| 1754 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 1755 | |
| 1756 | ENTER("qla1280_isp_firmware"); |
| 1757 | |
| 1758 | dprintk(1, "scsi(%li): Determining if RISC is loaded\n", ha->host_no); |
| 1759 | |
| 1760 | /* Bad NVRAM data, load RISC code. */ |
| 1761 | if (!ha->nvram_valid) { |
| 1762 | ha->flags.disable_risc_code_load = 0; |
| 1763 | } else |
| 1764 | ha->flags.disable_risc_code_load = |
| 1765 | nv->cntr_flags_1.disable_loading_risc_code; |
| 1766 | |
| 1767 | if (ha->flags.disable_risc_code_load) { |
| 1768 | dprintk(3, "qla1280_isp_firmware: Telling RISC to verify " |
| 1769 | "checksum of loaded BIOS code.\n"); |
| 1770 | |
| 1771 | /* Verify checksum of loaded RISC code. */ |
| 1772 | mb[0] = MBC_VERIFY_CHECKSUM; |
| 1773 | /* mb[1] = ql12_risc_code_addr01; */ |
| 1774 | mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; |
| 1775 | |
| 1776 | if (!(status = |
| 1777 | qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]))) { |
| 1778 | /* Start firmware execution. */ |
| 1779 | dprintk(3, "qla1280_isp_firmware: Startng F/W " |
| 1780 | "execution.\n"); |
| 1781 | |
| 1782 | mb[0] = MBC_EXECUTE_FIRMWARE; |
| 1783 | /* mb[1] = ql12_risc_code_addr01; */ |
| 1784 | mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; |
| 1785 | qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); |
| 1786 | } else |
| 1787 | printk(KERN_INFO "qla1280: RISC checksum failed.\n"); |
| 1788 | } else { |
| 1789 | dprintk(1, "qla1280: NVRAM configured to load RISC load.\n"); |
| 1790 | status = 1; |
| 1791 | } |
| 1792 | |
| 1793 | if (status) |
| 1794 | dprintk(2, "qla1280_isp_firmware: **** Load RISC code ****\n"); |
| 1795 | |
| 1796 | LEAVE("qla1280_isp_firmware"); |
| 1797 | return status; |
| 1798 | } |
| 1799 | |
| 1800 | /* |
| 1801 | * Chip diagnostics |
| 1802 | * Test chip for proper operation. |
| 1803 | * |
| 1804 | * Input: |
| 1805 | * ha = adapter block pointer. |
| 1806 | * |
| 1807 | * Returns: |
| 1808 | * 0 = success. |
| 1809 | */ |
| 1810 | static int |
| 1811 | qla1280_chip_diag(struct scsi_qla_host *ha) |
| 1812 | { |
| 1813 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 1814 | struct device_reg __iomem *reg = ha->iobase; |
| 1815 | int status = 0; |
| 1816 | int cnt; |
| 1817 | uint16_t data; |
| 1818 | dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l); |
| 1819 | |
| 1820 | dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no); |
| 1821 | |
| 1822 | /* Soft reset chip and wait for it to finish. */ |
| 1823 | WRT_REG_WORD(®->ictrl, ISP_RESET); |
| 1824 | |
| 1825 | /* |
| 1826 | * We can't do a traditional PCI write flush here by reading |
| 1827 | * back the register. The card will not respond once the reset |
| 1828 | * is in action and we end up with a machine check exception |
| 1829 | * instead. Nothing to do but wait and hope for the best. |
| 1830 | * A portable pci_write_flush(pdev) call would be very useful here. |
| 1831 | */ |
| 1832 | udelay(20); |
| 1833 | data = qla1280_debounce_register(®->ictrl); |
| 1834 | /* |
| 1835 | * Yet another QLogic gem ;-( |
| 1836 | */ |
| 1837 | for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) { |
| 1838 | udelay(5); |
| 1839 | data = RD_REG_WORD(®->ictrl); |
| 1840 | } |
| 1841 | |
| 1842 | if (!cnt) |
| 1843 | goto fail; |
| 1844 | |
| 1845 | /* Reset register cleared by chip reset. */ |
| 1846 | dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n"); |
| 1847 | |
| 1848 | WRT_REG_WORD(®->cfg_1, 0); |
| 1849 | |
| 1850 | /* Reset RISC and disable BIOS which |
| 1851 | allows RISC to execute out of RAM. */ |
| 1852 | WRT_REG_WORD(®->host_cmd, HC_RESET_RISC | |
| 1853 | HC_RELEASE_RISC | HC_DISABLE_BIOS); |
| 1854 | |
| 1855 | RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| 1856 | data = qla1280_debounce_register(®->mailbox0); |
| 1857 | |
| 1858 | /* |
| 1859 | * I *LOVE* this code! |
| 1860 | */ |
| 1861 | for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) { |
| 1862 | udelay(5); |
| 1863 | data = RD_REG_WORD(®->mailbox0); |
| 1864 | } |
| 1865 | |
| 1866 | if (!cnt) |
| 1867 | goto fail; |
| 1868 | |
| 1869 | /* Check product ID of chip */ |
| 1870 | dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n"); |
| 1871 | |
| 1872 | if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 || |
| 1873 | (RD_REG_WORD(®->mailbox2) != PROD_ID_2 && |
| 1874 | RD_REG_WORD(®->mailbox2) != PROD_ID_2a) || |
| 1875 | RD_REG_WORD(®->mailbox3) != PROD_ID_3 || |
| 1876 | RD_REG_WORD(®->mailbox4) != PROD_ID_4) { |
| 1877 | printk(KERN_INFO "qla1280: Wrong product ID = " |
| 1878 | "0x%x,0x%x,0x%x,0x%x\n", |
| 1879 | RD_REG_WORD(®->mailbox1), |
| 1880 | RD_REG_WORD(®->mailbox2), |
| 1881 | RD_REG_WORD(®->mailbox3), |
| 1882 | RD_REG_WORD(®->mailbox4)); |
| 1883 | goto fail; |
| 1884 | } |
| 1885 | |
| 1886 | /* |
| 1887 | * Enable ints early!!! |
| 1888 | */ |
| 1889 | qla1280_enable_intrs(ha); |
| 1890 | |
| 1891 | dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n"); |
| 1892 | /* Wrap Incoming Mailboxes Test. */ |
| 1893 | mb[0] = MBC_MAILBOX_REGISTER_TEST; |
| 1894 | mb[1] = 0xAAAA; |
| 1895 | mb[2] = 0x5555; |
| 1896 | mb[3] = 0xAA55; |
| 1897 | mb[4] = 0x55AA; |
| 1898 | mb[5] = 0xA5A5; |
| 1899 | mb[6] = 0x5A5A; |
| 1900 | mb[7] = 0x2525; |
| 1901 | |
| 1902 | status = qla1280_mailbox_command(ha, 0xff, mb); |
| 1903 | if (status) |
| 1904 | goto fail; |
| 1905 | |
| 1906 | if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 || |
| 1907 | mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A || |
| 1908 | mb[7] != 0x2525) { |
| 1909 | printk(KERN_INFO "qla1280: Failed mbox check\n"); |
| 1910 | goto fail; |
| 1911 | } |
| 1912 | |
| 1913 | dprintk(3, "qla1280_chip_diag: exiting normally\n"); |
| 1914 | return 0; |
| 1915 | fail: |
| 1916 | dprintk(2, "qla1280_chip_diag: **** FAILED ****\n"); |
| 1917 | return status; |
| 1918 | } |
| 1919 | |
| 1920 | static int |
| 1921 | qla1280_load_firmware_pio(struct scsi_qla_host *ha) |
| 1922 | { |
| 1923 | uint16_t risc_address, *risc_code_address, risc_code_size; |
| 1924 | uint16_t mb[MAILBOX_REGISTER_COUNT], i; |
| 1925 | int err; |
| 1926 | |
| 1927 | /* Load RISC code. */ |
| 1928 | risc_address = *ql1280_board_tbl[ha->devnum].fwstart; |
| 1929 | risc_code_address = ql1280_board_tbl[ha->devnum].fwcode; |
| 1930 | risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen; |
| 1931 | |
| 1932 | for (i = 0; i < risc_code_size; i++) { |
| 1933 | mb[0] = MBC_WRITE_RAM_WORD; |
| 1934 | mb[1] = risc_address + i; |
| 1935 | mb[2] = risc_code_address[i]; |
| 1936 | |
| 1937 | err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb); |
| 1938 | if (err) { |
| 1939 | printk(KERN_ERR "scsi(%li): Failed to load firmware\n", |
| 1940 | ha->host_no); |
| 1941 | return err; |
| 1942 | } |
| 1943 | } |
| 1944 | |
| 1945 | return 0; |
| 1946 | } |
| 1947 | |
| 1948 | #define DUMP_IT_BACK 0 /* for debug of RISC loading */ |
| 1949 | static int |
| 1950 | qla1280_load_firmware_dma(struct scsi_qla_host *ha) |
| 1951 | { |
| 1952 | uint16_t risc_address, *risc_code_address, risc_code_size; |
| 1953 | uint16_t mb[MAILBOX_REGISTER_COUNT], cnt; |
| 1954 | int err = 0, num, i; |
| 1955 | #if DUMP_IT_BACK |
| 1956 | uint8_t *sp, *tbuf; |
| 1957 | dma_addr_t p_tbuf; |
| 1958 | |
| 1959 | tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf); |
| 1960 | if (!tbuf) |
| 1961 | return -ENOMEM; |
| 1962 | #endif |
| 1963 | |
| 1964 | /* Load RISC code. */ |
| 1965 | risc_address = *ql1280_board_tbl[ha->devnum].fwstart; |
| 1966 | risc_code_address = ql1280_board_tbl[ha->devnum].fwcode; |
| 1967 | risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen; |
| 1968 | |
| 1969 | dprintk(1, "%s: DMA RISC code (%i) words\n", |
| 1970 | __FUNCTION__, risc_code_size); |
| 1971 | |
| 1972 | num = 0; |
| 1973 | while (risc_code_size > 0) { |
| 1974 | int warn __attribute__((unused)) = 0; |
| 1975 | |
| 1976 | cnt = 2000 >> 1; |
| 1977 | |
| 1978 | if (cnt > risc_code_size) |
| 1979 | cnt = risc_code_size; |
| 1980 | |
| 1981 | dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p)," |
| 1982 | "%d,%d(0x%x)\n", |
| 1983 | risc_code_address, cnt, num, risc_address); |
| 1984 | for(i = 0; i < cnt; i++) |
| 1985 | ((uint16_t *)ha->request_ring)[i] = |
| 1986 | cpu_to_le16(risc_code_address[i]); |
| 1987 | |
| 1988 | mb[0] = MBC_LOAD_RAM; |
| 1989 | mb[1] = risc_address; |
| 1990 | mb[4] = cnt; |
| 1991 | mb[3] = ha->request_dma & 0xffff; |
| 1992 | mb[2] = (ha->request_dma >> 16) & 0xffff; |
| 1993 | mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; |
| 1994 | mb[6] = pci_dma_hi32(ha->request_dma) >> 16; |
| 1995 | dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n", |
| 1996 | __FUNCTION__, mb[0], |
| 1997 | (void *)(long)ha->request_dma, |
| 1998 | mb[6], mb[7], mb[2], mb[3]); |
| 1999 | err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | |
| 2000 | BIT_1 | BIT_0, mb); |
| 2001 | if (err) { |
| 2002 | printk(KERN_ERR "scsi(%li): Failed to load partial " |
| 2003 | "segment of f\n", ha->host_no); |
| 2004 | goto out; |
| 2005 | } |
| 2006 | |
| 2007 | #if DUMP_IT_BACK |
| 2008 | mb[0] = MBC_DUMP_RAM; |
| 2009 | mb[1] = risc_address; |
| 2010 | mb[4] = cnt; |
| 2011 | mb[3] = p_tbuf & 0xffff; |
| 2012 | mb[2] = (p_tbuf >> 16) & 0xffff; |
| 2013 | mb[7] = pci_dma_hi32(p_tbuf) & 0xffff; |
| 2014 | mb[6] = pci_dma_hi32(p_tbuf) >> 16; |
| 2015 | |
| 2016 | err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | |
| 2017 | BIT_1 | BIT_0, mb); |
| 2018 | if (err) { |
| 2019 | printk(KERN_ERR |
| 2020 | "Failed to dump partial segment of f/w\n"); |
| 2021 | goto out; |
| 2022 | } |
| 2023 | sp = (uint8_t *)ha->request_ring; |
| 2024 | for (i = 0; i < (cnt << 1); i++) { |
| 2025 | if (tbuf[i] != sp[i] && warn++ < 10) { |
| 2026 | printk(KERN_ERR "%s: FW compare error @ " |
| 2027 | "byte(0x%x) loop#=%x\n", |
| 2028 | __FUNCTION__, i, num); |
| 2029 | printk(KERN_ERR "%s: FWbyte=%x " |
| 2030 | "FWfromChip=%x\n", |
| 2031 | __FUNCTION__, sp[i], tbuf[i]); |
| 2032 | /*break; */ |
| 2033 | } |
| 2034 | } |
| 2035 | #endif |
| 2036 | risc_address += cnt; |
| 2037 | risc_code_size = risc_code_size - cnt; |
| 2038 | risc_code_address = risc_code_address + cnt; |
| 2039 | num++; |
| 2040 | } |
| 2041 | |
| 2042 | out: |
| 2043 | #if DUMP_IT_BACK |
| 2044 | pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf); |
| 2045 | #endif |
| 2046 | return err; |
| 2047 | } |
| 2048 | |
| 2049 | static int |
| 2050 | qla1280_start_firmware(struct scsi_qla_host *ha) |
| 2051 | { |
| 2052 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2053 | int err; |
| 2054 | |
| 2055 | dprintk(1, "%s: Verifying checksum of loaded RISC code.\n", |
| 2056 | __FUNCTION__); |
| 2057 | |
| 2058 | /* Verify checksum of loaded RISC code. */ |
| 2059 | mb[0] = MBC_VERIFY_CHECKSUM; |
| 2060 | /* mb[1] = ql12_risc_code_addr01; */ |
| 2061 | mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; |
| 2062 | err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); |
| 2063 | if (err) { |
| 2064 | printk(KERN_ERR "scsi(%li): Failed checksum\n", ha->host_no); |
| 2065 | return err; |
| 2066 | } |
| 2067 | |
| 2068 | /* Start firmware execution. */ |
| 2069 | dprintk(1, "%s: start firmware running.\n", __FUNCTION__); |
| 2070 | mb[0] = MBC_EXECUTE_FIRMWARE; |
| 2071 | mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; |
| 2072 | err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); |
| 2073 | if (err) { |
| 2074 | printk(KERN_ERR "scsi(%li): Failed to start firmware\n", |
| 2075 | ha->host_no); |
| 2076 | } |
| 2077 | |
| 2078 | return err; |
| 2079 | } |
| 2080 | |
| 2081 | static int |
| 2082 | qla1280_load_firmware(struct scsi_qla_host *ha) |
| 2083 | { |
| 2084 | int err = -ENODEV; |
| 2085 | |
| 2086 | /* If firmware needs to be loaded */ |
| 2087 | if (!qla1280_isp_firmware(ha)) { |
| 2088 | printk(KERN_ERR "scsi(%li): isp_firmware() failed!\n", |
| 2089 | ha->host_no); |
| 2090 | goto out; |
| 2091 | } |
| 2092 | |
| 2093 | err = qla1280_chip_diag(ha); |
| 2094 | if (err) |
| 2095 | goto out; |
| 2096 | if (IS_ISP1040(ha)) |
| 2097 | err = qla1280_load_firmware_pio(ha); |
| 2098 | else |
| 2099 | err = qla1280_load_firmware_dma(ha); |
| 2100 | if (err) |
| 2101 | goto out; |
| 2102 | err = qla1280_start_firmware(ha); |
| 2103 | out: |
| 2104 | return err; |
| 2105 | } |
| 2106 | |
| 2107 | /* |
| 2108 | * Initialize rings |
| 2109 | * |
| 2110 | * Input: |
| 2111 | * ha = adapter block pointer. |
| 2112 | * ha->request_ring = request ring virtual address |
| 2113 | * ha->response_ring = response ring virtual address |
| 2114 | * ha->request_dma = request ring physical address |
| 2115 | * ha->response_dma = response ring physical address |
| 2116 | * |
| 2117 | * Returns: |
| 2118 | * 0 = success. |
| 2119 | */ |
| 2120 | static int |
| 2121 | qla1280_init_rings(struct scsi_qla_host *ha) |
| 2122 | { |
| 2123 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2124 | int status = 0; |
| 2125 | |
| 2126 | ENTER("qla1280_init_rings"); |
| 2127 | |
| 2128 | /* Clear outstanding commands array. */ |
| 2129 | memset(ha->outstanding_cmds, 0, |
| 2130 | sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS); |
| 2131 | |
| 2132 | /* Initialize request queue. */ |
| 2133 | ha->request_ring_ptr = ha->request_ring; |
| 2134 | ha->req_ring_index = 0; |
| 2135 | ha->req_q_cnt = REQUEST_ENTRY_CNT; |
| 2136 | /* mb[0] = MBC_INIT_REQUEST_QUEUE; */ |
| 2137 | mb[0] = MBC_INIT_REQUEST_QUEUE_A64; |
| 2138 | mb[1] = REQUEST_ENTRY_CNT; |
| 2139 | mb[3] = ha->request_dma & 0xffff; |
| 2140 | mb[2] = (ha->request_dma >> 16) & 0xffff; |
| 2141 | mb[4] = 0; |
| 2142 | mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; |
| 2143 | mb[6] = pci_dma_hi32(ha->request_dma) >> 16; |
| 2144 | if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 | |
| 2145 | BIT_3 | BIT_2 | BIT_1 | BIT_0, |
| 2146 | &mb[0]))) { |
| 2147 | /* Initialize response queue. */ |
| 2148 | ha->response_ring_ptr = ha->response_ring; |
| 2149 | ha->rsp_ring_index = 0; |
| 2150 | /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */ |
| 2151 | mb[0] = MBC_INIT_RESPONSE_QUEUE_A64; |
| 2152 | mb[1] = RESPONSE_ENTRY_CNT; |
| 2153 | mb[3] = ha->response_dma & 0xffff; |
| 2154 | mb[2] = (ha->response_dma >> 16) & 0xffff; |
| 2155 | mb[5] = 0; |
| 2156 | mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff; |
| 2157 | mb[6] = pci_dma_hi32(ha->response_dma) >> 16; |
| 2158 | status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 | |
| 2159 | BIT_3 | BIT_2 | BIT_1 | BIT_0, |
| 2160 | &mb[0]); |
| 2161 | } |
| 2162 | |
| 2163 | if (status) |
| 2164 | dprintk(2, "qla1280_init_rings: **** FAILED ****\n"); |
| 2165 | |
| 2166 | LEAVE("qla1280_init_rings"); |
| 2167 | return status; |
| 2168 | } |
| 2169 | |
| 2170 | static void |
| 2171 | qla1280_print_settings(struct nvram *nv) |
| 2172 | { |
| 2173 | dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n", |
| 2174 | nv->bus[0].config_1.initiator_id); |
| 2175 | dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n", |
| 2176 | nv->bus[1].config_1.initiator_id); |
| 2177 | |
| 2178 | dprintk(1, "qla1280 : bus reset delay[0]=%d\n", |
| 2179 | nv->bus[0].bus_reset_delay); |
| 2180 | dprintk(1, "qla1280 : bus reset delay[1]=%d\n", |
| 2181 | nv->bus[1].bus_reset_delay); |
| 2182 | |
| 2183 | dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count); |
| 2184 | dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay); |
| 2185 | dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count); |
| 2186 | dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay); |
| 2187 | |
| 2188 | dprintk(1, "qla1280 : async data setup time[0]=%d\n", |
| 2189 | nv->bus[0].config_2.async_data_setup_time); |
| 2190 | dprintk(1, "qla1280 : async data setup time[1]=%d\n", |
| 2191 | nv->bus[1].config_2.async_data_setup_time); |
| 2192 | |
| 2193 | dprintk(1, "qla1280 : req/ack active negation[0]=%d\n", |
| 2194 | nv->bus[0].config_2.req_ack_active_negation); |
| 2195 | dprintk(1, "qla1280 : req/ack active negation[1]=%d\n", |
| 2196 | nv->bus[1].config_2.req_ack_active_negation); |
| 2197 | |
| 2198 | dprintk(1, "qla1280 : data line active negation[0]=%d\n", |
| 2199 | nv->bus[0].config_2.data_line_active_negation); |
| 2200 | dprintk(1, "qla1280 : data line active negation[1]=%d\n", |
| 2201 | nv->bus[1].config_2.data_line_active_negation); |
| 2202 | |
| 2203 | dprintk(1, "qla1280 : disable loading risc code=%d\n", |
| 2204 | nv->cntr_flags_1.disable_loading_risc_code); |
| 2205 | |
| 2206 | dprintk(1, "qla1280 : enable 64bit addressing=%d\n", |
| 2207 | nv->cntr_flags_1.enable_64bit_addressing); |
| 2208 | |
| 2209 | dprintk(1, "qla1280 : selection timeout limit[0]=%d\n", |
| 2210 | nv->bus[0].selection_timeout); |
| 2211 | dprintk(1, "qla1280 : selection timeout limit[1]=%d\n", |
| 2212 | nv->bus[1].selection_timeout); |
| 2213 | |
| 2214 | dprintk(1, "qla1280 : max queue depth[0]=%d\n", |
| 2215 | nv->bus[0].max_queue_depth); |
| 2216 | dprintk(1, "qla1280 : max queue depth[1]=%d\n", |
| 2217 | nv->bus[1].max_queue_depth); |
| 2218 | } |
| 2219 | |
| 2220 | static void |
| 2221 | qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target) |
| 2222 | { |
| 2223 | struct nvram *nv = &ha->nvram; |
| 2224 | |
| 2225 | nv->bus[bus].target[target].parameter.f.renegotiate_on_error = 1; |
| 2226 | nv->bus[bus].target[target].parameter.f.auto_request_sense = 1; |
| 2227 | nv->bus[bus].target[target].parameter.f.tag_queuing = 1; |
| 2228 | nv->bus[bus].target[target].parameter.f.enable_sync = 1; |
| 2229 | #if 1 /* Some SCSI Processors do not seem to like this */ |
| 2230 | nv->bus[bus].target[target].parameter.f.enable_wide = 1; |
| 2231 | #endif |
| 2232 | nv->bus[bus].target[target].parameter.f.parity_checking = 1; |
| 2233 | nv->bus[bus].target[target].parameter.f.disconnect_allowed = 1; |
| 2234 | nv->bus[bus].target[target].execution_throttle = |
| 2235 | nv->bus[bus].max_queue_depth - 1; |
| 2236 | |
| 2237 | if (IS_ISP1x160(ha)) { |
| 2238 | nv->bus[bus].target[target].flags.flags1x160.device_enable = 1; |
| 2239 | nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e; |
| 2240 | nv->bus[bus].target[target].sync_period = 9; |
| 2241 | nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1; |
| 2242 | nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2; |
| 2243 | nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1; |
| 2244 | } else { |
| 2245 | nv->bus[bus].target[target].flags.flags1x80.device_enable = 1; |
| 2246 | nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12; |
| 2247 | nv->bus[bus].target[target].sync_period = 10; |
| 2248 | } |
| 2249 | } |
| 2250 | |
| 2251 | static void |
| 2252 | qla1280_set_defaults(struct scsi_qla_host *ha) |
| 2253 | { |
| 2254 | struct nvram *nv = &ha->nvram; |
| 2255 | int bus, target; |
| 2256 | |
| 2257 | dprintk(1, "Using defaults for NVRAM: \n"); |
| 2258 | memset(nv, 0, sizeof(struct nvram)); |
| 2259 | |
| 2260 | /* nv->cntr_flags_1.disable_loading_risc_code = 1; */ |
| 2261 | nv->firmware_feature.f.enable_fast_posting = 1; |
| 2262 | nv->firmware_feature.f.disable_synchronous_backoff = 1; |
| 2263 | nv->termination.f.scsi_bus_0_control = 3; |
| 2264 | nv->termination.f.scsi_bus_1_control = 3; |
| 2265 | nv->termination.f.auto_term_support = 1; |
| 2266 | |
| 2267 | /* |
| 2268 | * Set default FIFO magic - What appropriate values would be here |
| 2269 | * is unknown. This is what I have found testing with 12160s. |
| 2270 | * |
| 2271 | * Now, I would love the magic decoder ring for this one, the |
| 2272 | * header file provided by QLogic seems to be bogus or incomplete |
| 2273 | * at best. |
| 2274 | */ |
| 2275 | nv->isp_config.c = ISP_CFG1_BENAB|ISP_CFG1_F128; |
| 2276 | if (IS_ISP1x160(ha)) |
| 2277 | nv->isp_parameter = 0x01; /* fast memory enable */ |
| 2278 | |
| 2279 | for (bus = 0; bus < MAX_BUSES; bus++) { |
| 2280 | nv->bus[bus].config_1.initiator_id = 7; |
| 2281 | nv->bus[bus].config_2.req_ack_active_negation = 1; |
| 2282 | nv->bus[bus].config_2.data_line_active_negation = 1; |
| 2283 | nv->bus[bus].selection_timeout = 250; |
| 2284 | nv->bus[bus].max_queue_depth = 256; |
| 2285 | |
| 2286 | if (IS_ISP1040(ha)) { |
| 2287 | nv->bus[bus].bus_reset_delay = 3; |
| 2288 | nv->bus[bus].config_2.async_data_setup_time = 6; |
| 2289 | nv->bus[bus].retry_delay = 1; |
| 2290 | } else { |
| 2291 | nv->bus[bus].bus_reset_delay = 5; |
| 2292 | nv->bus[bus].config_2.async_data_setup_time = 8; |
| 2293 | } |
| 2294 | |
| 2295 | for (target = 0; target < MAX_TARGETS; target++) |
| 2296 | qla1280_set_target_defaults(ha, bus, target); |
| 2297 | } |
| 2298 | } |
| 2299 | |
| 2300 | static int |
| 2301 | qla1280_config_target(struct scsi_qla_host *ha, int bus, int target) |
| 2302 | { |
| 2303 | struct nvram *nv = &ha->nvram; |
| 2304 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2305 | int status, lun; |
| 2306 | |
| 2307 | /* Set Target Parameters. */ |
| 2308 | mb[0] = MBC_SET_TARGET_PARAMETERS; |
| 2309 | mb[1] = (uint16_t) (bus ? target | BIT_7 : target); |
| 2310 | mb[1] <<= 8; |
| 2311 | |
| 2312 | /* |
| 2313 | * Do not enable wide, sync, and ppr for the initial |
| 2314 | * INQUIRY run. We enable this later if we determine |
| 2315 | * the target actually supports it. |
| 2316 | */ |
| 2317 | nv->bus[bus].target[target].parameter.f. |
| 2318 | auto_request_sense = 1; |
| 2319 | nv->bus[bus].target[target].parameter.f. |
| 2320 | stop_queue_on_check = 0; |
| 2321 | |
| 2322 | if (IS_ISP1x160(ha)) |
| 2323 | nv->bus[bus].target[target].ppr_1x160. |
| 2324 | flags.enable_ppr = 0; |
| 2325 | |
| 2326 | /* |
| 2327 | * No sync, wide, etc. while probing |
| 2328 | */ |
| 2329 | mb[2] = (nv->bus[bus].target[target].parameter.c << 8) & |
| 2330 | ~(TP_SYNC /*| TP_WIDE | TP_PPR*/); |
| 2331 | |
| 2332 | if (IS_ISP1x160(ha)) |
| 2333 | mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8; |
| 2334 | else |
| 2335 | mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8; |
| 2336 | mb[3] |= nv->bus[bus].target[target].sync_period; |
| 2337 | |
| 2338 | status = qla1280_mailbox_command(ha, BIT_3 | BIT_2 | BIT_1 | BIT_0, &mb[0]); |
| 2339 | |
| 2340 | /* Save Tag queuing enable flag. */ |
| 2341 | mb[0] = BIT_0 << target; |
| 2342 | if (nv->bus[bus].target[target].parameter.f.tag_queuing) |
| 2343 | ha->bus_settings[bus].qtag_enables |= mb[0]; |
| 2344 | |
| 2345 | /* Save Device enable flag. */ |
| 2346 | if (IS_ISP1x160(ha)) { |
| 2347 | if (nv->bus[bus].target[target].flags.flags1x160.device_enable) |
| 2348 | ha->bus_settings[bus].device_enables |= mb[0]; |
| 2349 | ha->bus_settings[bus].lun_disables |= 0; |
| 2350 | } else { |
| 2351 | if (nv->bus[bus].target[target].flags.flags1x80.device_enable) |
| 2352 | ha->bus_settings[bus].device_enables |= mb[0]; |
| 2353 | /* Save LUN disable flag. */ |
| 2354 | if (nv->bus[bus].target[target].flags.flags1x80.lun_disable) |
| 2355 | ha->bus_settings[bus].lun_disables |= mb[0]; |
| 2356 | } |
| 2357 | |
| 2358 | /* Set Device Queue Parameters. */ |
| 2359 | for (lun = 0; lun < MAX_LUNS; lun++) { |
| 2360 | mb[0] = MBC_SET_DEVICE_QUEUE; |
| 2361 | mb[1] = (uint16_t)(bus ? target | BIT_7 : target); |
| 2362 | mb[1] = mb[1] << 8 | lun; |
| 2363 | mb[2] = nv->bus[bus].max_queue_depth; |
| 2364 | mb[3] = nv->bus[bus].target[target].execution_throttle; |
| 2365 | status |= qla1280_mailbox_command(ha, 0x0f, &mb[0]); |
| 2366 | } |
| 2367 | |
| 2368 | return status; |
| 2369 | } |
| 2370 | |
| 2371 | static int |
| 2372 | qla1280_config_bus(struct scsi_qla_host *ha, int bus) |
| 2373 | { |
| 2374 | struct nvram *nv = &ha->nvram; |
| 2375 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2376 | int target, status; |
| 2377 | |
| 2378 | /* SCSI Reset Disable. */ |
| 2379 | ha->bus_settings[bus].disable_scsi_reset = |
| 2380 | nv->bus[bus].config_1.scsi_reset_disable; |
| 2381 | |
| 2382 | /* Initiator ID. */ |
| 2383 | ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id; |
| 2384 | mb[0] = MBC_SET_INITIATOR_ID; |
| 2385 | mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 : |
| 2386 | ha->bus_settings[bus].id; |
| 2387 | status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); |
| 2388 | |
| 2389 | /* Reset Delay. */ |
| 2390 | ha->bus_settings[bus].bus_reset_delay = |
| 2391 | nv->bus[bus].bus_reset_delay; |
| 2392 | |
| 2393 | /* Command queue depth per device. */ |
| 2394 | ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1; |
| 2395 | |
| 2396 | /* Set target parameters. */ |
| 2397 | for (target = 0; target < MAX_TARGETS; target++) |
| 2398 | status |= qla1280_config_target(ha, bus, target); |
| 2399 | |
| 2400 | return status; |
| 2401 | } |
| 2402 | |
| 2403 | static int |
| 2404 | qla1280_nvram_config(struct scsi_qla_host *ha) |
| 2405 | { |
| 2406 | struct device_reg __iomem *reg = ha->iobase; |
| 2407 | struct nvram *nv = &ha->nvram; |
| 2408 | int bus, target, status = 0; |
| 2409 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2410 | uint16_t mask; |
| 2411 | |
| 2412 | ENTER("qla1280_nvram_config"); |
| 2413 | |
| 2414 | if (ha->nvram_valid) { |
| 2415 | /* Always force AUTO sense for LINUX SCSI */ |
| 2416 | for (bus = 0; bus < MAX_BUSES; bus++) |
| 2417 | for (target = 0; target < MAX_TARGETS; target++) { |
| 2418 | nv->bus[bus].target[target].parameter.f. |
| 2419 | auto_request_sense = 1; |
| 2420 | } |
| 2421 | } else { |
| 2422 | qla1280_set_defaults(ha); |
| 2423 | } |
| 2424 | |
| 2425 | qla1280_print_settings(nv); |
| 2426 | |
| 2427 | /* Disable RISC load of firmware. */ |
| 2428 | ha->flags.disable_risc_code_load = |
| 2429 | nv->cntr_flags_1.disable_loading_risc_code; |
| 2430 | |
| 2431 | if (IS_ISP1040(ha)) { |
| 2432 | uint16_t hwrev, cfg1, cdma_conf, ddma_conf; |
| 2433 | |
| 2434 | hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK; |
| 2435 | |
| 2436 | cfg1 = RD_REG_WORD(®->cfg_1); |
| 2437 | cdma_conf = RD_REG_WORD(®->cdma_cfg); |
| 2438 | ddma_conf = RD_REG_WORD(®->ddma_cfg); |
| 2439 | |
| 2440 | /* Busted fifo, says mjacob. */ |
| 2441 | if (hwrev == ISP_CFG0_1040A) |
| 2442 | WRT_REG_WORD(®->cfg_1, cfg1 | ISP_CFG1_F64); |
| 2443 | else |
| 2444 | WRT_REG_WORD(®->cfg_1, cfg1 | ISP_CFG1_F64 | ISP_CFG1_BENAB); |
| 2445 | |
| 2446 | WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB); |
| 2447 | WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB); |
| 2448 | } else { |
| 2449 | /* Set ISP hardware DMA burst */ |
| 2450 | mb[0] = nv->isp_config.c; |
| 2451 | /* Enable DMA arbitration on dual channel controllers */ |
| 2452 | if (ha->ports > 1) |
| 2453 | mb[0] |= BIT_13; |
| 2454 | WRT_REG_WORD(®->cfg_1, mb[0]); |
| 2455 | |
| 2456 | /* Set SCSI termination. */ |
| 2457 | WRT_REG_WORD(®->gpio_enable, (BIT_3 + BIT_2 + BIT_1 + BIT_0)); |
| 2458 | mb[0] = nv->termination.c & (BIT_3 + BIT_2 + BIT_1 + BIT_0); |
| 2459 | WRT_REG_WORD(®->gpio_data, mb[0]); |
| 2460 | } |
| 2461 | |
| 2462 | /* ISP parameter word. */ |
| 2463 | mb[0] = MBC_SET_SYSTEM_PARAMETER; |
| 2464 | mb[1] = nv->isp_parameter; |
| 2465 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); |
| 2466 | |
| 2467 | if (IS_ISP1x40(ha)) { |
| 2468 | /* clock rate - for qla1240 and older, only */ |
| 2469 | mb[0] = MBC_SET_CLOCK_RATE; |
| 2470 | mb[1] = 40; |
| 2471 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); |
| 2472 | } |
| 2473 | |
| 2474 | /* Firmware feature word. */ |
| 2475 | mb[0] = MBC_SET_FIRMWARE_FEATURES; |
| 2476 | mask = BIT_5 | BIT_1 | BIT_0; |
| 2477 | mb[1] = le16_to_cpu(nv->firmware_feature.w) & (mask); |
| 2478 | #if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2) |
| 2479 | if (ia64_platform_is("sn2")) { |
| 2480 | printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA " |
| 2481 | "workaround\n", ha->host_no); |
| 2482 | mb[1] |= BIT_9; |
| 2483 | } |
| 2484 | #endif |
| 2485 | status |= qla1280_mailbox_command(ha, mask, &mb[0]); |
| 2486 | |
| 2487 | /* Retry count and delay. */ |
| 2488 | mb[0] = MBC_SET_RETRY_COUNT; |
| 2489 | mb[1] = nv->bus[0].retry_count; |
| 2490 | mb[2] = nv->bus[0].retry_delay; |
| 2491 | mb[6] = nv->bus[1].retry_count; |
| 2492 | mb[7] = nv->bus[1].retry_delay; |
| 2493 | status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 | |
| 2494 | BIT_1 | BIT_0, &mb[0]); |
| 2495 | |
| 2496 | /* ASYNC data setup time. */ |
| 2497 | mb[0] = MBC_SET_ASYNC_DATA_SETUP; |
| 2498 | mb[1] = nv->bus[0].config_2.async_data_setup_time; |
| 2499 | mb[2] = nv->bus[1].config_2.async_data_setup_time; |
| 2500 | status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); |
| 2501 | |
| 2502 | /* Active negation states. */ |
| 2503 | mb[0] = MBC_SET_ACTIVE_NEGATION; |
| 2504 | mb[1] = 0; |
| 2505 | if (nv->bus[0].config_2.req_ack_active_negation) |
| 2506 | mb[1] |= BIT_5; |
| 2507 | if (nv->bus[0].config_2.data_line_active_negation) |
| 2508 | mb[1] |= BIT_4; |
| 2509 | mb[2] = 0; |
| 2510 | if (nv->bus[1].config_2.req_ack_active_negation) |
| 2511 | mb[2] |= BIT_5; |
| 2512 | if (nv->bus[1].config_2.data_line_active_negation) |
| 2513 | mb[2] |= BIT_4; |
| 2514 | status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); |
| 2515 | |
| 2516 | mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY; |
| 2517 | mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */ |
| 2518 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); |
| 2519 | |
| 2520 | /* thingy */ |
| 2521 | mb[0] = MBC_SET_PCI_CONTROL; |
| 2522 | mb[1] = 2; /* Data DMA Channel Burst Enable */ |
| 2523 | mb[2] = 2; /* Command DMA Channel Burst Enable */ |
| 2524 | status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); |
| 2525 | |
| 2526 | mb[0] = MBC_SET_TAG_AGE_LIMIT; |
| 2527 | mb[1] = 8; |
| 2528 | status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); |
| 2529 | |
| 2530 | /* Selection timeout. */ |
| 2531 | mb[0] = MBC_SET_SELECTION_TIMEOUT; |
| 2532 | mb[1] = nv->bus[0].selection_timeout; |
| 2533 | mb[2] = nv->bus[1].selection_timeout; |
| 2534 | status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); |
| 2535 | |
| 2536 | for (bus = 0; bus < ha->ports; bus++) |
| 2537 | status |= qla1280_config_bus(ha, bus); |
| 2538 | |
| 2539 | if (status) |
| 2540 | dprintk(2, "qla1280_nvram_config: **** FAILED ****\n"); |
| 2541 | |
| 2542 | LEAVE("qla1280_nvram_config"); |
| 2543 | return status; |
| 2544 | } |
| 2545 | |
| 2546 | /* |
| 2547 | * Get NVRAM data word |
| 2548 | * Calculates word position in NVRAM and calls request routine to |
| 2549 | * get the word from NVRAM. |
| 2550 | * |
| 2551 | * Input: |
| 2552 | * ha = adapter block pointer. |
| 2553 | * address = NVRAM word address. |
| 2554 | * |
| 2555 | * Returns: |
| 2556 | * data word. |
| 2557 | */ |
| 2558 | static uint16_t |
| 2559 | qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address) |
| 2560 | { |
| 2561 | uint32_t nv_cmd; |
| 2562 | uint16_t data; |
| 2563 | |
| 2564 | nv_cmd = address << 16; |
| 2565 | nv_cmd |= NV_READ_OP; |
| 2566 | |
| 2567 | data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd)); |
| 2568 | |
| 2569 | dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = " |
| 2570 | "0x%x", data); |
| 2571 | |
| 2572 | return data; |
| 2573 | } |
| 2574 | |
| 2575 | /* |
| 2576 | * NVRAM request |
| 2577 | * Sends read command to NVRAM and gets data from NVRAM. |
| 2578 | * |
| 2579 | * Input: |
| 2580 | * ha = adapter block pointer. |
| 2581 | * nv_cmd = Bit 26 = start bit |
| 2582 | * Bit 25, 24 = opcode |
| 2583 | * Bit 23-16 = address |
| 2584 | * Bit 15-0 = write data |
| 2585 | * |
| 2586 | * Returns: |
| 2587 | * data word. |
| 2588 | */ |
| 2589 | static uint16_t |
| 2590 | qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd) |
| 2591 | { |
| 2592 | struct device_reg __iomem *reg = ha->iobase; |
| 2593 | int cnt; |
| 2594 | uint16_t data = 0; |
| 2595 | uint16_t reg_data; |
| 2596 | |
| 2597 | /* Send command to NVRAM. */ |
| 2598 | |
| 2599 | nv_cmd <<= 5; |
| 2600 | for (cnt = 0; cnt < 11; cnt++) { |
| 2601 | if (nv_cmd & BIT_31) |
| 2602 | qla1280_nv_write(ha, NV_DATA_OUT); |
| 2603 | else |
| 2604 | qla1280_nv_write(ha, 0); |
| 2605 | nv_cmd <<= 1; |
| 2606 | } |
| 2607 | |
| 2608 | /* Read data from NVRAM. */ |
| 2609 | |
| 2610 | for (cnt = 0; cnt < 16; cnt++) { |
| 2611 | WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK)); |
| 2612 | RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| 2613 | NVRAM_DELAY(); |
| 2614 | data <<= 1; |
| 2615 | reg_data = RD_REG_WORD(®->nvram); |
| 2616 | if (reg_data & NV_DATA_IN) |
| 2617 | data |= BIT_0; |
| 2618 | WRT_REG_WORD(®->nvram, NV_SELECT); |
| 2619 | RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| 2620 | NVRAM_DELAY(); |
| 2621 | } |
| 2622 | |
| 2623 | /* Deselect chip. */ |
| 2624 | |
| 2625 | WRT_REG_WORD(®->nvram, NV_DESELECT); |
| 2626 | RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| 2627 | NVRAM_DELAY(); |
| 2628 | |
| 2629 | return data; |
| 2630 | } |
| 2631 | |
| 2632 | static void |
| 2633 | qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data) |
| 2634 | { |
| 2635 | struct device_reg __iomem *reg = ha->iobase; |
| 2636 | |
| 2637 | WRT_REG_WORD(®->nvram, data | NV_SELECT); |
| 2638 | RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| 2639 | NVRAM_DELAY(); |
| 2640 | WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK); |
| 2641 | RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| 2642 | NVRAM_DELAY(); |
| 2643 | WRT_REG_WORD(®->nvram, data | NV_SELECT); |
| 2644 | RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| 2645 | NVRAM_DELAY(); |
| 2646 | } |
| 2647 | |
| 2648 | /* |
| 2649 | * Mailbox Command |
| 2650 | * Issue mailbox command and waits for completion. |
| 2651 | * |
| 2652 | * Input: |
| 2653 | * ha = adapter block pointer. |
| 2654 | * mr = mailbox registers to load. |
| 2655 | * mb = data pointer for mailbox registers. |
| 2656 | * |
| 2657 | * Output: |
| 2658 | * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data. |
| 2659 | * |
| 2660 | * Returns: |
| 2661 | * 0 = success |
| 2662 | */ |
| 2663 | static int |
| 2664 | qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb) |
| 2665 | { |
| 2666 | struct device_reg __iomem *reg = ha->iobase; |
| 2667 | #if 0 |
| 2668 | LIST_HEAD(done_q); |
| 2669 | #endif |
| 2670 | int status = 0; |
| 2671 | int cnt; |
| 2672 | uint16_t *optr, *iptr; |
| 2673 | uint16_t __iomem *mptr; |
| 2674 | uint16_t data; |
| 2675 | DECLARE_COMPLETION(wait); |
| 2676 | struct timer_list timer; |
| 2677 | |
| 2678 | ENTER("qla1280_mailbox_command"); |
| 2679 | |
| 2680 | if (ha->mailbox_wait) { |
| 2681 | printk(KERN_ERR "Warning mailbox wait already in use!\n"); |
| 2682 | } |
| 2683 | ha->mailbox_wait = &wait; |
| 2684 | |
| 2685 | /* |
| 2686 | * We really should start out by verifying that the mailbox is |
| 2687 | * available before starting sending the command data |
| 2688 | */ |
| 2689 | /* Load mailbox registers. */ |
| 2690 | mptr = (uint16_t __iomem *) ®->mailbox0; |
| 2691 | iptr = mb; |
| 2692 | for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) { |
| 2693 | if (mr & BIT_0) { |
| 2694 | WRT_REG_WORD(mptr, (*iptr)); |
| 2695 | } |
| 2696 | |
| 2697 | mr >>= 1; |
| 2698 | mptr++; |
| 2699 | iptr++; |
| 2700 | } |
| 2701 | |
| 2702 | /* Issue set host interrupt command. */ |
| 2703 | |
| 2704 | /* set up a timer just in case we're really jammed */ |
| 2705 | init_timer(&timer); |
| 2706 | timer.expires = jiffies + 20*HZ; |
| 2707 | timer.data = (unsigned long)ha; |
| 2708 | timer.function = qla1280_mailbox_timeout; |
| 2709 | add_timer(&timer); |
| 2710 | |
| 2711 | spin_unlock_irq(HOST_LOCK); |
| 2712 | WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT); |
| 2713 | data = qla1280_debounce_register(®->istatus); |
| 2714 | |
| 2715 | wait_for_completion(&wait); |
| 2716 | del_timer_sync(&timer); |
| 2717 | |
| 2718 | spin_lock_irq(HOST_LOCK); |
| 2719 | |
| 2720 | ha->mailbox_wait = NULL; |
| 2721 | |
| 2722 | /* Check for mailbox command timeout. */ |
| 2723 | if (ha->mailbox_out[0] != MBS_CMD_CMP) { |
| 2724 | printk(KERN_WARNING "qla1280_mailbox_command: Command failed, " |
| 2725 | "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = " |
| 2726 | "0x%04x\n", |
| 2727 | mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus)); |
| 2728 | printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n", |
| 2729 | RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1), |
| 2730 | RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3)); |
| 2731 | printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n", |
| 2732 | RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5), |
| 2733 | RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7)); |
| 2734 | status = 1; |
| 2735 | } |
| 2736 | |
| 2737 | /* Load return mailbox registers. */ |
| 2738 | optr = mb; |
| 2739 | iptr = (uint16_t *) &ha->mailbox_out[0]; |
| 2740 | mr = MAILBOX_REGISTER_COUNT; |
| 2741 | memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t)); |
| 2742 | |
| 2743 | #if 0 |
| 2744 | /* Go check for any response interrupts pending. */ |
| 2745 | qla1280_isr(ha, &done_q); |
| 2746 | #endif |
| 2747 | |
| 2748 | if (ha->flags.reset_marker) |
| 2749 | qla1280_rst_aen(ha); |
| 2750 | |
| 2751 | #if 0 |
| 2752 | if (!list_empty(&done_q)) |
| 2753 | qla1280_done(ha, &done_q); |
| 2754 | #endif |
| 2755 | |
| 2756 | if (status) |
| 2757 | dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = " |
| 2758 | "0x%x ****\n", mb[0]); |
| 2759 | |
| 2760 | LEAVE("qla1280_mailbox_command"); |
| 2761 | return status; |
| 2762 | } |
| 2763 | |
| 2764 | /* |
| 2765 | * qla1280_poll |
| 2766 | * Polls ISP for interrupts. |
| 2767 | * |
| 2768 | * Input: |
| 2769 | * ha = adapter block pointer. |
| 2770 | */ |
| 2771 | static void |
| 2772 | qla1280_poll(struct scsi_qla_host *ha) |
| 2773 | { |
| 2774 | struct device_reg __iomem *reg = ha->iobase; |
| 2775 | uint16_t data; |
| 2776 | LIST_HEAD(done_q); |
| 2777 | |
| 2778 | /* ENTER("qla1280_poll"); */ |
| 2779 | |
| 2780 | /* Check for pending interrupts. */ |
| 2781 | data = RD_REG_WORD(®->istatus); |
| 2782 | if (data & RISC_INT) |
| 2783 | qla1280_isr(ha, &done_q); |
| 2784 | |
| 2785 | if (!ha->mailbox_wait) { |
| 2786 | if (ha->flags.reset_marker) |
| 2787 | qla1280_rst_aen(ha); |
| 2788 | } |
| 2789 | |
| 2790 | if (!list_empty(&done_q)) |
| 2791 | qla1280_done(ha); |
| 2792 | |
| 2793 | /* LEAVE("qla1280_poll"); */ |
| 2794 | } |
| 2795 | |
| 2796 | /* |
| 2797 | * qla1280_bus_reset |
| 2798 | * Issue SCSI bus reset. |
| 2799 | * |
| 2800 | * Input: |
| 2801 | * ha = adapter block pointer. |
| 2802 | * bus = SCSI bus number. |
| 2803 | * |
| 2804 | * Returns: |
| 2805 | * 0 = success |
| 2806 | */ |
| 2807 | static int |
| 2808 | qla1280_bus_reset(struct scsi_qla_host *ha, int bus) |
| 2809 | { |
| 2810 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2811 | uint16_t reset_delay; |
| 2812 | int status; |
| 2813 | |
| 2814 | dprintk(3, "qla1280_bus_reset: entered\n"); |
| 2815 | |
| 2816 | if (qla1280_verbose) |
| 2817 | printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n", |
| 2818 | ha->host_no, bus); |
| 2819 | |
| 2820 | reset_delay = ha->bus_settings[bus].bus_reset_delay; |
| 2821 | mb[0] = MBC_BUS_RESET; |
| 2822 | mb[1] = reset_delay; |
| 2823 | mb[2] = (uint16_t) bus; |
| 2824 | status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); |
| 2825 | |
| 2826 | if (status) { |
| 2827 | if (ha->bus_settings[bus].failed_reset_count > 2) |
| 2828 | ha->bus_settings[bus].scsi_bus_dead = 1; |
| 2829 | ha->bus_settings[bus].failed_reset_count++; |
| 2830 | } else { |
| 2831 | spin_unlock_irq(HOST_LOCK); |
| 2832 | schedule_timeout(reset_delay * HZ); |
| 2833 | spin_lock_irq(HOST_LOCK); |
| 2834 | |
| 2835 | ha->bus_settings[bus].scsi_bus_dead = 0; |
| 2836 | ha->bus_settings[bus].failed_reset_count = 0; |
| 2837 | ha->bus_settings[bus].reset_marker = 0; |
| 2838 | /* Issue marker command. */ |
| 2839 | qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL); |
| 2840 | } |
| 2841 | |
| 2842 | /* |
| 2843 | * We should probably call qla1280_set_target_parameters() |
| 2844 | * here as well for all devices on the bus. |
| 2845 | */ |
| 2846 | |
| 2847 | if (status) |
| 2848 | dprintk(2, "qla1280_bus_reset: **** FAILED ****\n"); |
| 2849 | else |
| 2850 | dprintk(3, "qla1280_bus_reset: exiting normally\n"); |
| 2851 | |
| 2852 | return status; |
| 2853 | } |
| 2854 | |
| 2855 | /* |
| 2856 | * qla1280_device_reset |
| 2857 | * Issue bus device reset message to the target. |
| 2858 | * |
| 2859 | * Input: |
| 2860 | * ha = adapter block pointer. |
| 2861 | * bus = SCSI BUS number. |
| 2862 | * target = SCSI ID. |
| 2863 | * |
| 2864 | * Returns: |
| 2865 | * 0 = success |
| 2866 | */ |
| 2867 | static int |
| 2868 | qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target) |
| 2869 | { |
| 2870 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2871 | int status; |
| 2872 | |
| 2873 | ENTER("qla1280_device_reset"); |
| 2874 | |
| 2875 | mb[0] = MBC_ABORT_TARGET; |
| 2876 | mb[1] = (bus ? (target | BIT_7) : target) << 8; |
| 2877 | mb[2] = 1; |
| 2878 | status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); |
| 2879 | |
| 2880 | /* Issue marker command. */ |
| 2881 | qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); |
| 2882 | |
| 2883 | if (status) |
| 2884 | dprintk(2, "qla1280_device_reset: **** FAILED ****\n"); |
| 2885 | |
| 2886 | LEAVE("qla1280_device_reset"); |
| 2887 | return status; |
| 2888 | } |
| 2889 | |
| 2890 | /* |
| 2891 | * qla1280_abort_device |
| 2892 | * Issue an abort message to the device |
| 2893 | * |
| 2894 | * Input: |
| 2895 | * ha = adapter block pointer. |
| 2896 | * bus = SCSI BUS. |
| 2897 | * target = SCSI ID. |
| 2898 | * lun = SCSI LUN. |
| 2899 | * |
| 2900 | * Returns: |
| 2901 | * 0 = success |
| 2902 | */ |
| 2903 | static int |
| 2904 | qla1280_abort_device(struct scsi_qla_host *ha, int bus, int target, int lun) |
| 2905 | { |
| 2906 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2907 | int status; |
| 2908 | |
| 2909 | ENTER("qla1280_abort_device"); |
| 2910 | |
| 2911 | mb[0] = MBC_ABORT_DEVICE; |
| 2912 | mb[1] = (bus ? target | BIT_7 : target) << 8 | lun; |
| 2913 | status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); |
| 2914 | |
| 2915 | /* Issue marker command. */ |
| 2916 | qla1280_marker(ha, bus, target, lun, MK_SYNC_ID_LUN); |
| 2917 | |
| 2918 | if (status) |
| 2919 | dprintk(2, "qla1280_abort_device: **** FAILED ****\n"); |
| 2920 | |
| 2921 | LEAVE("qla1280_abort_device"); |
| 2922 | return status; |
| 2923 | } |
| 2924 | |
| 2925 | /* |
| 2926 | * qla1280_abort_command |
| 2927 | * Abort command aborts a specified IOCB. |
| 2928 | * |
| 2929 | * Input: |
| 2930 | * ha = adapter block pointer. |
| 2931 | * sp = SB structure pointer. |
| 2932 | * |
| 2933 | * Returns: |
| 2934 | * 0 = success |
| 2935 | */ |
| 2936 | static int |
| 2937 | qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle) |
| 2938 | { |
| 2939 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 2940 | unsigned int bus, target, lun; |
| 2941 | int status; |
| 2942 | |
| 2943 | ENTER("qla1280_abort_command"); |
| 2944 | |
| 2945 | bus = SCSI_BUS_32(sp->cmd); |
| 2946 | target = SCSI_TCN_32(sp->cmd); |
| 2947 | lun = SCSI_LUN_32(sp->cmd); |
| 2948 | |
| 2949 | sp->flags |= SRB_ABORT_PENDING; |
| 2950 | |
| 2951 | mb[0] = MBC_ABORT_COMMAND; |
| 2952 | mb[1] = (bus ? target | BIT_7 : target) << 8 | lun; |
| 2953 | mb[2] = handle >> 16; |
| 2954 | mb[3] = handle & 0xffff; |
| 2955 | status = qla1280_mailbox_command(ha, 0x0f, &mb[0]); |
| 2956 | |
| 2957 | if (status) { |
| 2958 | dprintk(2, "qla1280_abort_command: **** FAILED ****\n"); |
| 2959 | sp->flags &= ~SRB_ABORT_PENDING; |
| 2960 | } |
| 2961 | |
| 2962 | |
| 2963 | LEAVE("qla1280_abort_command"); |
| 2964 | return status; |
| 2965 | } |
| 2966 | |
| 2967 | /* |
| 2968 | * qla1280_reset_adapter |
| 2969 | * Reset adapter. |
| 2970 | * |
| 2971 | * Input: |
| 2972 | * ha = adapter block pointer. |
| 2973 | */ |
| 2974 | static void |
| 2975 | qla1280_reset_adapter(struct scsi_qla_host *ha) |
| 2976 | { |
| 2977 | struct device_reg __iomem *reg = ha->iobase; |
| 2978 | |
| 2979 | ENTER("qla1280_reset_adapter"); |
| 2980 | |
| 2981 | /* Disable ISP chip */ |
| 2982 | ha->flags.online = 0; |
| 2983 | WRT_REG_WORD(®->ictrl, ISP_RESET); |
| 2984 | WRT_REG_WORD(®->host_cmd, |
| 2985 | HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS); |
| 2986 | RD_REG_WORD(®->id_l); /* Flush PCI write */ |
| 2987 | |
| 2988 | LEAVE("qla1280_reset_adapter"); |
| 2989 | } |
| 2990 | |
| 2991 | /* |
| 2992 | * Issue marker command. |
| 2993 | * Function issues marker IOCB. |
| 2994 | * |
| 2995 | * Input: |
| 2996 | * ha = adapter block pointer. |
| 2997 | * bus = SCSI BUS number |
| 2998 | * id = SCSI ID |
| 2999 | * lun = SCSI LUN |
| 3000 | * type = marker modifier |
| 3001 | */ |
| 3002 | static void |
| 3003 | qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type) |
| 3004 | { |
| 3005 | struct mrk_entry *pkt; |
| 3006 | |
| 3007 | ENTER("qla1280_marker"); |
| 3008 | |
| 3009 | /* Get request packet. */ |
| 3010 | if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) { |
| 3011 | pkt->entry_type = MARKER_TYPE; |
| 3012 | pkt->lun = (uint8_t) lun; |
| 3013 | pkt->target = (uint8_t) (bus ? (id | BIT_7) : id); |
| 3014 | pkt->modifier = type; |
| 3015 | pkt->entry_status = 0; |
| 3016 | |
| 3017 | /* Issue command to ISP */ |
| 3018 | qla1280_isp_cmd(ha); |
| 3019 | } |
| 3020 | |
| 3021 | LEAVE("qla1280_marker"); |
| 3022 | } |
| 3023 | |
| 3024 | |
| 3025 | /* |
| 3026 | * qla1280_64bit_start_scsi |
| 3027 | * The start SCSI is responsible for building request packets on |
| 3028 | * request ring and modifying ISP input pointer. |
| 3029 | * |
| 3030 | * Input: |
| 3031 | * ha = adapter block pointer. |
| 3032 | * sp = SB structure pointer. |
| 3033 | * |
| 3034 | * Returns: |
| 3035 | * 0 = success, was able to issue command. |
| 3036 | */ |
| 3037 | #ifdef QLA_64BIT_PTR |
| 3038 | static int |
| 3039 | qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) |
| 3040 | { |
| 3041 | struct device_reg __iomem *reg = ha->iobase; |
| 3042 | struct scsi_cmnd *cmd = sp->cmd; |
| 3043 | cmd_a64_entry_t *pkt; |
| 3044 | struct scatterlist *sg = NULL; |
| 3045 | u32 *dword_ptr; |
| 3046 | dma_addr_t dma_handle; |
| 3047 | int status = 0; |
| 3048 | int cnt; |
| 3049 | int req_cnt; |
| 3050 | u16 seg_cnt; |
| 3051 | u8 dir; |
| 3052 | |
| 3053 | ENTER("qla1280_64bit_start_scsi:"); |
| 3054 | |
| 3055 | /* Calculate number of entries and segments required. */ |
| 3056 | req_cnt = 1; |
| 3057 | if (cmd->use_sg) { |
| 3058 | sg = (struct scatterlist *) cmd->request_buffer; |
| 3059 | seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg, |
| 3060 | cmd->sc_data_direction); |
| 3061 | |
| 3062 | if (seg_cnt > 2) { |
| 3063 | req_cnt += (seg_cnt - 2) / 5; |
| 3064 | if ((seg_cnt - 2) % 5) |
| 3065 | req_cnt++; |
| 3066 | } |
| 3067 | } else if (cmd->request_bufflen) { /* If data transfer. */ |
| 3068 | seg_cnt = 1; |
| 3069 | } else { |
| 3070 | seg_cnt = 0; |
| 3071 | } |
| 3072 | |
| 3073 | if ((req_cnt + 2) >= ha->req_q_cnt) { |
| 3074 | /* Calculate number of free request entries. */ |
| 3075 | cnt = RD_REG_WORD(®->mailbox4); |
| 3076 | if (ha->req_ring_index < cnt) |
| 3077 | ha->req_q_cnt = cnt - ha->req_ring_index; |
| 3078 | else |
| 3079 | ha->req_q_cnt = |
| 3080 | REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); |
| 3081 | } |
| 3082 | |
| 3083 | /* If room for request in request ring. */ |
| 3084 | if ((req_cnt + 2) >= ha->req_q_cnt) { |
| 3085 | status = 1; |
| 3086 | dprintk(2, "qla1280_64bit_start_scsi: in-ptr=0x%x req_q_cnt=" |
| 3087 | "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt, |
| 3088 | req_cnt); |
| 3089 | goto out; |
| 3090 | } |
| 3091 | |
| 3092 | /* Check for room in outstanding command list. */ |
| 3093 | for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && |
| 3094 | ha->outstanding_cmds[cnt] != 0; cnt++); |
| 3095 | |
| 3096 | if (cnt >= MAX_OUTSTANDING_COMMANDS) { |
| 3097 | status = 1; |
| 3098 | dprintk(2, "qla1280_64bit_start_scsi: NO ROOM IN " |
| 3099 | "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt); |
| 3100 | goto out; |
| 3101 | } |
| 3102 | |
| 3103 | ha->outstanding_cmds[cnt] = sp; |
| 3104 | ha->req_q_cnt -= req_cnt; |
| 3105 | CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1); |
| 3106 | |
| 3107 | dprintk(2, "64bit_start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp, |
| 3108 | cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd)); |
| 3109 | dprintk(2, " bus %i, target %i, lun %i\n", |
| 3110 | SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); |
| 3111 | qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE); |
| 3112 | |
| 3113 | /* |
| 3114 | * Build command packet. |
| 3115 | */ |
| 3116 | pkt = (cmd_a64_entry_t *) ha->request_ring_ptr; |
| 3117 | |
| 3118 | pkt->entry_type = COMMAND_A64_TYPE; |
| 3119 | pkt->entry_count = (uint8_t) req_cnt; |
| 3120 | pkt->sys_define = (uint8_t) ha->req_ring_index; |
| 3121 | pkt->entry_status = 0; |
| 3122 | pkt->handle = cpu_to_le32(cnt); |
| 3123 | |
| 3124 | /* Zero out remaining portion of packet. */ |
| 3125 | memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); |
| 3126 | |
| 3127 | /* Set ISP command timeout. */ |
| 3128 | pkt->timeout = cpu_to_le16(30); |
| 3129 | |
| 3130 | /* Set device target ID and LUN */ |
| 3131 | pkt->lun = SCSI_LUN_32(cmd); |
| 3132 | pkt->target = SCSI_BUS_32(cmd) ? |
| 3133 | (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); |
| 3134 | |
| 3135 | /* Enable simple tag queuing if device supports it. */ |
| 3136 | if (DEV_SIMPLE_TAGS(cmd->device)) |
| 3137 | pkt->control_flags |= cpu_to_le16(BIT_3); |
| 3138 | |
| 3139 | /* Load SCSI command packet. */ |
| 3140 | pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); |
| 3141 | memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd)); |
| 3142 | /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ |
| 3143 | |
| 3144 | /* Set transfer direction. */ |
| 3145 | dir = qla1280_data_direction(cmd); |
| 3146 | pkt->control_flags |= cpu_to_le16(dir); |
| 3147 | |
| 3148 | /* Set total data segment count. */ |
| 3149 | pkt->dseg_count = cpu_to_le16(seg_cnt); |
| 3150 | |
| 3151 | /* |
| 3152 | * Load data segments. |
| 3153 | */ |
| 3154 | if (seg_cnt) { /* If data transfer. */ |
| 3155 | /* Setup packet address segment pointer. */ |
| 3156 | dword_ptr = (u32 *)&pkt->dseg_0_address; |
| 3157 | |
| 3158 | if (cmd->use_sg) { /* If scatter gather */ |
| 3159 | /* Load command entry data segments. */ |
| 3160 | for (cnt = 0; cnt < 2 && seg_cnt; cnt++, seg_cnt--) { |
| 3161 | dma_handle = sg_dma_address(sg); |
| 3162 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) |
| 3163 | if (ha->flags.use_pci_vchannel) |
| 3164 | sn_pci_set_vchan(ha->pdev, |
| 3165 | (unsigned long *)&dma_handle, |
| 3166 | SCSI_BUS_32(cmd)); |
| 3167 | #endif |
| 3168 | *dword_ptr++ = |
| 3169 | cpu_to_le32(pci_dma_lo32(dma_handle)); |
| 3170 | *dword_ptr++ = |
| 3171 | cpu_to_le32(pci_dma_hi32(dma_handle)); |
| 3172 | *dword_ptr++ = cpu_to_le32(sg_dma_len(sg)); |
| 3173 | sg++; |
| 3174 | dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n", |
| 3175 | cpu_to_le32(pci_dma_hi32(dma_handle)), |
| 3176 | cpu_to_le32(pci_dma_lo32(dma_handle)), |
| 3177 | cpu_to_le32(sg_dma_len(sg))); |
| 3178 | } |
| 3179 | dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather " |
| 3180 | "command packet data - b %i, t %i, l %i \n", |
| 3181 | SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), |
| 3182 | SCSI_LUN_32(cmd)); |
| 3183 | qla1280_dump_buffer(5, (char *)pkt, |
| 3184 | REQUEST_ENTRY_SIZE); |
| 3185 | |
| 3186 | /* |
| 3187 | * Build continuation packets. |
| 3188 | */ |
| 3189 | dprintk(3, "S/G Building Continuation...seg_cnt=0x%x " |
| 3190 | "remains\n", seg_cnt); |
| 3191 | |
| 3192 | while (seg_cnt > 0) { |
| 3193 | /* Adjust ring index. */ |
| 3194 | ha->req_ring_index++; |
| 3195 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { |
| 3196 | ha->req_ring_index = 0; |
| 3197 | ha->request_ring_ptr = |
| 3198 | ha->request_ring; |
| 3199 | } else |
| 3200 | ha->request_ring_ptr++; |
| 3201 | |
| 3202 | pkt = (cmd_a64_entry_t *)ha->request_ring_ptr; |
| 3203 | |
| 3204 | /* Zero out packet. */ |
| 3205 | memset(pkt, 0, REQUEST_ENTRY_SIZE); |
| 3206 | |
| 3207 | /* Load packet defaults. */ |
| 3208 | ((struct cont_a64_entry *) pkt)->entry_type = |
| 3209 | CONTINUE_A64_TYPE; |
| 3210 | ((struct cont_a64_entry *) pkt)->entry_count = 1; |
| 3211 | ((struct cont_a64_entry *) pkt)->sys_define = |
| 3212 | (uint8_t)ha->req_ring_index; |
| 3213 | /* Setup packet address segment pointer. */ |
| 3214 | dword_ptr = |
| 3215 | (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address; |
| 3216 | |
| 3217 | /* Load continuation entry data segments. */ |
| 3218 | for (cnt = 0; cnt < 5 && seg_cnt; |
| 3219 | cnt++, seg_cnt--) { |
| 3220 | dma_handle = sg_dma_address(sg); |
| 3221 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) |
| 3222 | if (ha->flags.use_pci_vchannel) |
| 3223 | sn_pci_set_vchan(ha->pdev, |
| 3224 | (unsigned long *)&dma_handle, |
| 3225 | SCSI_BUS_32(cmd)); |
| 3226 | #endif |
| 3227 | *dword_ptr++ = |
| 3228 | cpu_to_le32(pci_dma_lo32(dma_handle)); |
| 3229 | *dword_ptr++ = |
| 3230 | cpu_to_le32(pci_dma_hi32(dma_handle)); |
| 3231 | *dword_ptr++ = |
| 3232 | cpu_to_le32(sg_dma_len(sg)); |
| 3233 | dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n", |
| 3234 | cpu_to_le32(pci_dma_hi32(dma_handle)), |
| 3235 | cpu_to_le32(pci_dma_lo32(dma_handle)), |
| 3236 | cpu_to_le32(sg_dma_len(sg))); |
| 3237 | sg++; |
| 3238 | } |
| 3239 | dprintk(5, "qla1280_64bit_start_scsi: " |
| 3240 | "continuation packet data - b %i, t " |
| 3241 | "%i, l %i \n", SCSI_BUS_32(cmd), |
| 3242 | SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); |
| 3243 | qla1280_dump_buffer(5, (char *)pkt, |
| 3244 | REQUEST_ENTRY_SIZE); |
| 3245 | } |
| 3246 | } else { /* No scatter gather data transfer */ |
| 3247 | dma_handle = pci_map_single(ha->pdev, |
| 3248 | cmd->request_buffer, |
| 3249 | cmd->request_bufflen, |
| 3250 | cmd->sc_data_direction); |
| 3251 | |
| 3252 | sp->saved_dma_handle = dma_handle; |
| 3253 | #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) |
| 3254 | if (ha->flags.use_pci_vchannel) |
| 3255 | sn_pci_set_vchan(ha->pdev, |
| 3256 | (unsigned long *)&dma_handle, |
| 3257 | SCSI_BUS_32(cmd)); |
| 3258 | #endif |
| 3259 | *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); |
| 3260 | *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle)); |
| 3261 | *dword_ptr = cpu_to_le32(cmd->request_bufflen); |
| 3262 | |
| 3263 | dprintk(5, "qla1280_64bit_start_scsi: No scatter/" |
| 3264 | "gather command packet data - b %i, t %i, " |
| 3265 | "l %i \n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), |
| 3266 | SCSI_LUN_32(cmd)); |
| 3267 | qla1280_dump_buffer(5, (char *)pkt, |
| 3268 | REQUEST_ENTRY_SIZE); |
| 3269 | } |
| 3270 | } else { /* No data transfer */ |
| 3271 | dprintk(5, "qla1280_64bit_start_scsi: No data, command " |
| 3272 | "packet data - b %i, t %i, l %i \n", |
| 3273 | SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); |
| 3274 | qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); |
| 3275 | } |
| 3276 | /* Adjust ring index. */ |
| 3277 | ha->req_ring_index++; |
| 3278 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { |
| 3279 | ha->req_ring_index = 0; |
| 3280 | ha->request_ring_ptr = ha->request_ring; |
| 3281 | } else |
| 3282 | ha->request_ring_ptr++; |
| 3283 | |
| 3284 | /* Set chip new ring index. */ |
| 3285 | dprintk(2, |
| 3286 | "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n"); |
| 3287 | sp->flags |= SRB_SENT; |
| 3288 | ha->actthreads++; |
| 3289 | WRT_REG_WORD(®->mailbox4, ha->req_ring_index); |
| 3290 | /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ |
| 3291 | mmiowb(); |
| 3292 | |
| 3293 | out: |
| 3294 | if (status) |
| 3295 | dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n"); |
| 3296 | else |
| 3297 | dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n"); |
| 3298 | |
| 3299 | return status; |
| 3300 | } |
| 3301 | #else /* !QLA_64BIT_PTR */ |
| 3302 | |
| 3303 | /* |
| 3304 | * qla1280_32bit_start_scsi |
| 3305 | * The start SCSI is responsible for building request packets on |
| 3306 | * request ring and modifying ISP input pointer. |
| 3307 | * |
| 3308 | * The Qlogic firmware interface allows every queue slot to have a SCSI |
| 3309 | * command and up to 4 scatter/gather (SG) entries. If we need more |
| 3310 | * than 4 SG entries, then continuation entries are used that can |
| 3311 | * hold another 7 entries each. The start routine determines if there |
| 3312 | * is eought empty slots then build the combination of requests to |
| 3313 | * fulfill the OS request. |
| 3314 | * |
| 3315 | * Input: |
| 3316 | * ha = adapter block pointer. |
| 3317 | * sp = SCSI Request Block structure pointer. |
| 3318 | * |
| 3319 | * Returns: |
| 3320 | * 0 = success, was able to issue command. |
| 3321 | */ |
| 3322 | static int |
| 3323 | qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) |
| 3324 | { |
| 3325 | struct device_reg __iomem *reg = ha->iobase; |
| 3326 | struct scsi_cmnd *cmd = sp->cmd; |
| 3327 | struct cmd_entry *pkt; |
| 3328 | struct scatterlist *sg = NULL; |
| 3329 | uint32_t *dword_ptr; |
| 3330 | int status = 0; |
| 3331 | int cnt; |
| 3332 | int req_cnt; |
| 3333 | uint16_t seg_cnt; |
| 3334 | dma_addr_t dma_handle; |
| 3335 | u8 dir; |
| 3336 | |
| 3337 | ENTER("qla1280_32bit_start_scsi"); |
| 3338 | |
| 3339 | dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp, |
| 3340 | cmd->cmnd[0]); |
| 3341 | |
| 3342 | /* Calculate number of entries and segments required. */ |
| 3343 | req_cnt = 1; |
| 3344 | if (cmd->use_sg) { |
| 3345 | /* |
| 3346 | * We must build an SG list in adapter format, as the kernel's |
| 3347 | * SG list cannot be used directly because of data field size |
| 3348 | * (__alpha__) differences and the kernel SG list uses virtual |
| 3349 | * addresses where we need physical addresses. |
| 3350 | */ |
| 3351 | sg = (struct scatterlist *) cmd->request_buffer; |
| 3352 | seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg, |
| 3353 | cmd->sc_data_direction); |
| 3354 | |
| 3355 | /* |
| 3356 | * if greater than four sg entries then we need to allocate |
| 3357 | * continuation entries |
| 3358 | */ |
| 3359 | if (seg_cnt > 4) { |
| 3360 | req_cnt += (seg_cnt - 4) / 7; |
| 3361 | if ((seg_cnt - 4) % 7) |
| 3362 | req_cnt++; |
| 3363 | } |
| 3364 | dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n", |
| 3365 | cmd, seg_cnt, req_cnt); |
| 3366 | } else if (cmd->request_bufflen) { /* If data transfer. */ |
| 3367 | dprintk(3, "No S/G transfer t=%x cmd=%p len=%x CDB=%x\n", |
| 3368 | SCSI_TCN_32(cmd), cmd, cmd->request_bufflen, |
| 3369 | cmd->cmnd[0]); |
| 3370 | seg_cnt = 1; |
| 3371 | } else { |
| 3372 | /* dprintk(1, "No data transfer \n"); */ |
| 3373 | seg_cnt = 0; |
| 3374 | } |
| 3375 | |
| 3376 | if ((req_cnt + 2) >= ha->req_q_cnt) { |
| 3377 | /* Calculate number of free request entries. */ |
| 3378 | cnt = RD_REG_WORD(®->mailbox4); |
| 3379 | if (ha->req_ring_index < cnt) |
| 3380 | ha->req_q_cnt = cnt - ha->req_ring_index; |
| 3381 | else |
| 3382 | ha->req_q_cnt = |
| 3383 | REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); |
| 3384 | } |
| 3385 | |
| 3386 | dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n", |
| 3387 | ha->req_q_cnt, seg_cnt); |
| 3388 | /* If room for request in request ring. */ |
| 3389 | if ((req_cnt + 2) >= ha->req_q_cnt) { |
| 3390 | status = 1; |
| 3391 | dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, " |
| 3392 | "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index, |
| 3393 | ha->req_q_cnt, req_cnt); |
| 3394 | goto out; |
| 3395 | } |
| 3396 | |
| 3397 | /* Check for empty slot in outstanding command list. */ |
| 3398 | for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && |
| 3399 | (ha->outstanding_cmds[cnt] != 0); cnt++) ; |
| 3400 | |
| 3401 | if (cnt >= MAX_OUTSTANDING_COMMANDS) { |
| 3402 | status = 1; |
| 3403 | dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING " |
| 3404 | "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt); |
| 3405 | goto out; |
| 3406 | } |
| 3407 | |
| 3408 | CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1); |
| 3409 | ha->outstanding_cmds[cnt] = sp; |
| 3410 | ha->req_q_cnt -= req_cnt; |
| 3411 | |
| 3412 | /* |
| 3413 | * Build command packet. |
| 3414 | */ |
| 3415 | pkt = (struct cmd_entry *) ha->request_ring_ptr; |
| 3416 | |
| 3417 | pkt->entry_type = COMMAND_TYPE; |
| 3418 | pkt->entry_count = (uint8_t) req_cnt; |
| 3419 | pkt->sys_define = (uint8_t) ha->req_ring_index; |
| 3420 | pkt->entry_status = 0; |
| 3421 | pkt->handle = cpu_to_le32(cnt); |
| 3422 | |
| 3423 | /* Zero out remaining portion of packet. */ |
| 3424 | memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); |
| 3425 | |
| 3426 | /* Set ISP command timeout. */ |
| 3427 | pkt->timeout = cpu_to_le16(30); |
| 3428 | |
| 3429 | /* Set device target ID and LUN */ |
| 3430 | pkt->lun = SCSI_LUN_32(cmd); |
| 3431 | pkt->target = SCSI_BUS_32(cmd) ? |
| 3432 | (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); |
| 3433 | |
| 3434 | /* Enable simple tag queuing if device supports it. */ |
| 3435 | if (DEV_SIMPLE_TAGS(cmd->device)) |
| 3436 | pkt->control_flags |= cpu_to_le16(BIT_3); |
| 3437 | |
| 3438 | /* Load SCSI command packet. */ |
| 3439 | pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); |
| 3440 | memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd)); |
| 3441 | |
| 3442 | /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ |
| 3443 | /* Set transfer direction. */ |
| 3444 | dir = qla1280_data_direction(cmd); |
| 3445 | pkt->control_flags |= cpu_to_le16(dir); |
| 3446 | |
| 3447 | /* Set total data segment count. */ |
| 3448 | pkt->dseg_count = cpu_to_le16(seg_cnt); |
| 3449 | |
| 3450 | /* |
| 3451 | * Load data segments. |
| 3452 | */ |
| 3453 | if (seg_cnt) { |
| 3454 | /* Setup packet address segment pointer. */ |
| 3455 | dword_ptr = &pkt->dseg_0_address; |
| 3456 | |
| 3457 | if (cmd->use_sg) { /* If scatter gather */ |
| 3458 | dprintk(3, "Building S/G data segments..\n"); |
| 3459 | qla1280_dump_buffer(1, (char *)sg, 4 * 16); |
| 3460 | |
| 3461 | /* Load command entry data segments. */ |
| 3462 | for (cnt = 0; cnt < 4 && seg_cnt; cnt++, seg_cnt--) { |
| 3463 | *dword_ptr++ = |
| 3464 | cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))); |
| 3465 | *dword_ptr++ = |
| 3466 | cpu_to_le32(sg_dma_len(sg)); |
| 3467 | dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n", |
| 3468 | (pci_dma_lo32(sg_dma_address(sg))), |
| 3469 | (sg_dma_len(sg))); |
| 3470 | sg++; |
| 3471 | } |
| 3472 | /* |
| 3473 | * Build continuation packets. |
| 3474 | */ |
| 3475 | dprintk(3, "S/G Building Continuation" |
| 3476 | "...seg_cnt=0x%x remains\n", seg_cnt); |
| 3477 | while (seg_cnt > 0) { |
| 3478 | /* Adjust ring index. */ |
| 3479 | ha->req_ring_index++; |
| 3480 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { |
| 3481 | ha->req_ring_index = 0; |
| 3482 | ha->request_ring_ptr = |
| 3483 | ha->request_ring; |
| 3484 | } else |
| 3485 | ha->request_ring_ptr++; |
| 3486 | |
| 3487 | pkt = (struct cmd_entry *)ha->request_ring_ptr; |
| 3488 | |
| 3489 | /* Zero out packet. */ |
| 3490 | memset(pkt, 0, REQUEST_ENTRY_SIZE); |
| 3491 | |
| 3492 | /* Load packet defaults. */ |
| 3493 | ((struct cont_entry *) pkt)-> |
| 3494 | entry_type = CONTINUE_TYPE; |
| 3495 | ((struct cont_entry *) pkt)->entry_count = 1; |
| 3496 | |
| 3497 | ((struct cont_entry *) pkt)->sys_define = |
| 3498 | (uint8_t) ha->req_ring_index; |
| 3499 | |
| 3500 | /* Setup packet address segment pointer. */ |
| 3501 | dword_ptr = |
| 3502 | &((struct cont_entry *) pkt)->dseg_0_address; |
| 3503 | |
| 3504 | /* Load continuation entry data segments. */ |
| 3505 | for (cnt = 0; cnt < 7 && seg_cnt; |
| 3506 | cnt++, seg_cnt--) { |
| 3507 | *dword_ptr++ = |
| 3508 | cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))); |
| 3509 | *dword_ptr++ = |
| 3510 | cpu_to_le32(sg_dma_len(sg)); |
| 3511 | dprintk(1, |
| 3512 | "S/G Segment Cont. phys_addr=0x%x, " |
| 3513 | "len=0x%x\n", |
| 3514 | cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))), |
| 3515 | cpu_to_le32(sg_dma_len(sg))); |
| 3516 | sg++; |
| 3517 | } |
| 3518 | dprintk(5, "qla1280_32bit_start_scsi: " |
| 3519 | "continuation packet data - " |
| 3520 | "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd), |
| 3521 | SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); |
| 3522 | qla1280_dump_buffer(5, (char *)pkt, |
| 3523 | REQUEST_ENTRY_SIZE); |
| 3524 | } |
| 3525 | } else { /* No S/G data transfer */ |
| 3526 | dma_handle = pci_map_single(ha->pdev, |
| 3527 | cmd->request_buffer, |
| 3528 | cmd->request_bufflen, |
| 3529 | cmd->sc_data_direction); |
| 3530 | sp->saved_dma_handle = dma_handle; |
| 3531 | |
| 3532 | *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); |
| 3533 | *dword_ptr = cpu_to_le32(cmd->request_bufflen); |
| 3534 | } |
| 3535 | } else { /* No data transfer at all */ |
| 3536 | dprintk(5, "qla1280_32bit_start_scsi: No data, command " |
| 3537 | "packet data - \n"); |
| 3538 | qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); |
| 3539 | } |
| 3540 | dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n"); |
| 3541 | qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, |
| 3542 | REQUEST_ENTRY_SIZE); |
| 3543 | |
| 3544 | /* Adjust ring index. */ |
| 3545 | ha->req_ring_index++; |
| 3546 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { |
| 3547 | ha->req_ring_index = 0; |
| 3548 | ha->request_ring_ptr = ha->request_ring; |
| 3549 | } else |
| 3550 | ha->request_ring_ptr++; |
| 3551 | |
| 3552 | /* Set chip new ring index. */ |
| 3553 | dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC " |
| 3554 | "for pending command\n"); |
| 3555 | sp->flags |= SRB_SENT; |
| 3556 | ha->actthreads++; |
| 3557 | WRT_REG_WORD(®->mailbox4, ha->req_ring_index); |
| 3558 | /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ |
| 3559 | mmiowb(); |
| 3560 | |
| 3561 | out: |
| 3562 | if (status) |
| 3563 | dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n"); |
| 3564 | |
| 3565 | LEAVE("qla1280_32bit_start_scsi"); |
| 3566 | |
| 3567 | return status; |
| 3568 | } |
| 3569 | #endif |
| 3570 | |
| 3571 | /* |
| 3572 | * qla1280_req_pkt |
| 3573 | * Function is responsible for locking ring and |
| 3574 | * getting a zeroed out request packet. |
| 3575 | * |
| 3576 | * Input: |
| 3577 | * ha = adapter block pointer. |
| 3578 | * |
| 3579 | * Returns: |
| 3580 | * 0 = failed to get slot. |
| 3581 | */ |
| 3582 | static request_t * |
| 3583 | qla1280_req_pkt(struct scsi_qla_host *ha) |
| 3584 | { |
| 3585 | struct device_reg __iomem *reg = ha->iobase; |
| 3586 | request_t *pkt = NULL; |
| 3587 | int cnt; |
| 3588 | uint32_t timer; |
| 3589 | |
| 3590 | ENTER("qla1280_req_pkt"); |
| 3591 | |
| 3592 | /* |
| 3593 | * This can be called from interrupt context, damn it!!! |
| 3594 | */ |
| 3595 | /* Wait for 30 seconds for slot. */ |
| 3596 | for (timer = 15000000; timer; timer--) { |
| 3597 | if (ha->req_q_cnt > 0) { |
| 3598 | /* Calculate number of free request entries. */ |
| 3599 | cnt = RD_REG_WORD(®->mailbox4); |
| 3600 | if (ha->req_ring_index < cnt) |
| 3601 | ha->req_q_cnt = cnt - ha->req_ring_index; |
| 3602 | else |
| 3603 | ha->req_q_cnt = |
| 3604 | REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); |
| 3605 | } |
| 3606 | |
| 3607 | /* Found empty request ring slot? */ |
| 3608 | if (ha->req_q_cnt > 0) { |
| 3609 | ha->req_q_cnt--; |
| 3610 | pkt = ha->request_ring_ptr; |
| 3611 | |
| 3612 | /* Zero out packet. */ |
| 3613 | memset(pkt, 0, REQUEST_ENTRY_SIZE); |
| 3614 | |
| 3615 | /* |
| 3616 | * How can this be right when we have a ring |
| 3617 | * size of 512??? |
| 3618 | */ |
| 3619 | /* Set system defined field. */ |
| 3620 | pkt->sys_define = (uint8_t) ha->req_ring_index; |
| 3621 | |
| 3622 | /* Set entry count. */ |
| 3623 | pkt->entry_count = 1; |
| 3624 | |
| 3625 | break; |
| 3626 | } |
| 3627 | |
| 3628 | udelay(2); /* 10 */ |
| 3629 | |
| 3630 | /* Check for pending interrupts. */ |
| 3631 | qla1280_poll(ha); |
| 3632 | } |
| 3633 | |
| 3634 | if (!pkt) |
| 3635 | dprintk(2, "qla1280_req_pkt: **** FAILED ****\n"); |
| 3636 | else |
| 3637 | dprintk(3, "qla1280_req_pkt: exiting normally\n"); |
| 3638 | |
| 3639 | return pkt; |
| 3640 | } |
| 3641 | |
| 3642 | /* |
| 3643 | * qla1280_isp_cmd |
| 3644 | * Function is responsible for modifying ISP input pointer. |
| 3645 | * Releases ring lock. |
| 3646 | * |
| 3647 | * Input: |
| 3648 | * ha = adapter block pointer. |
| 3649 | */ |
| 3650 | static void |
| 3651 | qla1280_isp_cmd(struct scsi_qla_host *ha) |
| 3652 | { |
| 3653 | struct device_reg __iomem *reg = ha->iobase; |
| 3654 | |
| 3655 | ENTER("qla1280_isp_cmd"); |
| 3656 | |
| 3657 | dprintk(5, "qla1280_isp_cmd: IOCB data:\n"); |
| 3658 | qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, |
| 3659 | REQUEST_ENTRY_SIZE); |
| 3660 | |
| 3661 | /* Adjust ring index. */ |
| 3662 | ha->req_ring_index++; |
| 3663 | if (ha->req_ring_index == REQUEST_ENTRY_CNT) { |
| 3664 | ha->req_ring_index = 0; |
| 3665 | ha->request_ring_ptr = ha->request_ring; |
| 3666 | } else |
| 3667 | ha->request_ring_ptr++; |
| 3668 | |
| 3669 | /* |
| 3670 | * Update request index to mailbox4 (Request Queue In). |
| 3671 | * The mmiowb() ensures that this write is ordered with writes by other |
| 3672 | * CPUs. Without the mmiowb(), it is possible for the following: |
| 3673 | * CPUA posts write of index 5 to mailbox4 |
| 3674 | * CPUA releases host lock |
| 3675 | * CPUB acquires host lock |
| 3676 | * CPUB posts write of index 6 to mailbox4 |
| 3677 | * On PCI bus, order reverses and write of 6 posts, then index 5, |
| 3678 | * causing chip to issue full queue of stale commands |
| 3679 | * The mmiowb() prevents future writes from crossing the barrier. |
| 3680 | * See Documentation/DocBook/deviceiobook.tmpl for more information. |
| 3681 | */ |
| 3682 | WRT_REG_WORD(®->mailbox4, ha->req_ring_index); |
| 3683 | mmiowb(); |
| 3684 | |
| 3685 | LEAVE("qla1280_isp_cmd"); |
| 3686 | } |
| 3687 | |
| 3688 | /****************************************************************************/ |
| 3689 | /* Interrupt Service Routine. */ |
| 3690 | /****************************************************************************/ |
| 3691 | |
| 3692 | /**************************************************************************** |
| 3693 | * qla1280_isr |
| 3694 | * Calls I/O done on command completion. |
| 3695 | * |
| 3696 | * Input: |
| 3697 | * ha = adapter block pointer. |
| 3698 | * done_q = done queue. |
| 3699 | ****************************************************************************/ |
| 3700 | static void |
| 3701 | qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q) |
| 3702 | { |
| 3703 | struct device_reg __iomem *reg = ha->iobase; |
| 3704 | struct response *pkt; |
| 3705 | struct srb *sp = NULL; |
| 3706 | uint16_t mailbox[MAILBOX_REGISTER_COUNT]; |
| 3707 | uint16_t *wptr; |
| 3708 | uint32_t index; |
| 3709 | u16 istatus; |
| 3710 | |
| 3711 | ENTER("qla1280_isr"); |
| 3712 | |
| 3713 | istatus = RD_REG_WORD(®->istatus); |
| 3714 | if (!(istatus & (RISC_INT | PCI_INT))) |
| 3715 | return; |
| 3716 | |
| 3717 | /* Save mailbox register 5 */ |
| 3718 | mailbox[5] = RD_REG_WORD(®->mailbox5); |
| 3719 | |
| 3720 | /* Check for mailbox interrupt. */ |
| 3721 | |
| 3722 | mailbox[0] = RD_REG_WORD_dmasync(®->semaphore); |
| 3723 | |
| 3724 | if (mailbox[0] & BIT_0) { |
| 3725 | /* Get mailbox data. */ |
| 3726 | /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */ |
| 3727 | |
| 3728 | wptr = &mailbox[0]; |
| 3729 | *wptr++ = RD_REG_WORD(®->mailbox0); |
| 3730 | *wptr++ = RD_REG_WORD(®->mailbox1); |
| 3731 | *wptr = RD_REG_WORD(®->mailbox2); |
| 3732 | if (mailbox[0] != MBA_SCSI_COMPLETION) { |
| 3733 | wptr++; |
| 3734 | *wptr++ = RD_REG_WORD(®->mailbox3); |
| 3735 | *wptr++ = RD_REG_WORD(®->mailbox4); |
| 3736 | wptr++; |
| 3737 | *wptr++ = RD_REG_WORD(®->mailbox6); |
| 3738 | *wptr = RD_REG_WORD(®->mailbox7); |
| 3739 | } |
| 3740 | |
| 3741 | /* Release mailbox registers. */ |
| 3742 | |
| 3743 | WRT_REG_WORD(®->semaphore, 0); |
| 3744 | WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); |
| 3745 | |
| 3746 | dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x", |
| 3747 | mailbox[0]); |
| 3748 | |
| 3749 | /* Handle asynchronous event */ |
| 3750 | switch (mailbox[0]) { |
| 3751 | case MBA_SCSI_COMPLETION: /* Response completion */ |
| 3752 | dprintk(5, "qla1280_isr: mailbox SCSI response " |
| 3753 | "completion\n"); |
| 3754 | |
| 3755 | if (ha->flags.online) { |
| 3756 | /* Get outstanding command index. */ |
| 3757 | index = mailbox[2] << 16 | mailbox[1]; |
| 3758 | |
| 3759 | /* Validate handle. */ |
| 3760 | if (index < MAX_OUTSTANDING_COMMANDS) |
| 3761 | sp = ha->outstanding_cmds[index]; |
| 3762 | else |
| 3763 | sp = NULL; |
| 3764 | |
| 3765 | if (sp) { |
| 3766 | /* Free outstanding command slot. */ |
| 3767 | ha->outstanding_cmds[index] = NULL; |
| 3768 | |
| 3769 | /* Save ISP completion status */ |
| 3770 | CMD_RESULT(sp->cmd) = 0; |
| 3771 | |
| 3772 | /* Place block on done queue */ |
| 3773 | list_add_tail(&sp->list, done_q); |
| 3774 | } else { |
| 3775 | /* |
| 3776 | * If we get here we have a real problem! |
| 3777 | */ |
| 3778 | printk(KERN_WARNING |
| 3779 | "qla1280: ISP invalid handle"); |
| 3780 | } |
| 3781 | } |
| 3782 | break; |
| 3783 | |
| 3784 | case MBA_BUS_RESET: /* SCSI Bus Reset */ |
| 3785 | ha->flags.reset_marker = 1; |
| 3786 | index = mailbox[6] & BIT_0; |
| 3787 | ha->bus_settings[index].reset_marker = 1; |
| 3788 | |
| 3789 | printk(KERN_DEBUG "qla1280_isr(): index %i " |
| 3790 | "asynchronous BUS_RESET\n", index); |
| 3791 | break; |
| 3792 | |
| 3793 | case MBA_SYSTEM_ERR: /* System Error */ |
| 3794 | printk(KERN_WARNING |
| 3795 | "qla1280: ISP System Error - mbx1=%xh, mbx2=" |
| 3796 | "%xh, mbx3=%xh\n", mailbox[1], mailbox[2], |
| 3797 | mailbox[3]); |
| 3798 | break; |
| 3799 | |
| 3800 | case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ |
| 3801 | printk(KERN_WARNING |
| 3802 | "qla1280: ISP Request Transfer Error\n"); |
| 3803 | break; |
| 3804 | |
| 3805 | case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ |
| 3806 | printk(KERN_WARNING |
| 3807 | "qla1280: ISP Response Transfer Error\n"); |
| 3808 | break; |
| 3809 | |
| 3810 | case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ |
| 3811 | dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n"); |
| 3812 | break; |
| 3813 | |
| 3814 | case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */ |
| 3815 | dprintk(2, |
| 3816 | "qla1280_isr: asynchronous TIMEOUT_RESET\n"); |
| 3817 | break; |
| 3818 | |
| 3819 | case MBA_DEVICE_RESET: /* Bus Device Reset */ |
| 3820 | printk(KERN_INFO "qla1280_isr(): asynchronous " |
| 3821 | "BUS_DEVICE_RESET\n"); |
| 3822 | |
| 3823 | ha->flags.reset_marker = 1; |
| 3824 | index = mailbox[6] & BIT_0; |
| 3825 | ha->bus_settings[index].reset_marker = 1; |
| 3826 | break; |
| 3827 | |
| 3828 | case MBA_BUS_MODE_CHANGE: |
| 3829 | dprintk(2, |
| 3830 | "qla1280_isr: asynchronous BUS_MODE_CHANGE\n"); |
| 3831 | break; |
| 3832 | |
| 3833 | default: |
| 3834 | /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */ |
| 3835 | if (mailbox[0] < MBA_ASYNC_EVENT) { |
| 3836 | wptr = &mailbox[0]; |
| 3837 | memcpy((uint16_t *) ha->mailbox_out, wptr, |
| 3838 | MAILBOX_REGISTER_COUNT * |
| 3839 | sizeof(uint16_t)); |
| 3840 | |
| 3841 | if(ha->mailbox_wait != NULL) |
| 3842 | complete(ha->mailbox_wait); |
| 3843 | } |
| 3844 | break; |
| 3845 | } |
| 3846 | } else { |
| 3847 | WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); |
| 3848 | } |
| 3849 | |
| 3850 | /* |
| 3851 | * We will receive interrupts during mailbox testing prior to |
| 3852 | * the card being marked online, hence the double check. |
| 3853 | */ |
| 3854 | if (!(ha->flags.online && !ha->mailbox_wait)) { |
| 3855 | dprintk(2, "qla1280_isr: Response pointer Error\n"); |
| 3856 | goto out; |
| 3857 | } |
| 3858 | |
| 3859 | if (mailbox[5] >= RESPONSE_ENTRY_CNT) |
| 3860 | goto out; |
| 3861 | |
| 3862 | while (ha->rsp_ring_index != mailbox[5]) { |
| 3863 | pkt = ha->response_ring_ptr; |
| 3864 | |
| 3865 | dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]" |
| 3866 | " = 0x%x\n", ha->rsp_ring_index, mailbox[5]); |
| 3867 | dprintk(5,"qla1280_isr: response packet data\n"); |
| 3868 | qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE); |
| 3869 | |
| 3870 | if (pkt->entry_type == STATUS_TYPE) { |
| 3871 | if ((le16_to_cpu(pkt->scsi_status) & 0xff) |
| 3872 | || pkt->comp_status || pkt->entry_status) { |
| 3873 | dprintk(2, "qla1280_isr: ha->rsp_ring_index = " |
| 3874 | "0x%x mailbox[5] = 0x%x, comp_status " |
| 3875 | "= 0x%x, scsi_status = 0x%x\n", |
| 3876 | ha->rsp_ring_index, mailbox[5], |
| 3877 | le16_to_cpu(pkt->comp_status), |
| 3878 | le16_to_cpu(pkt->scsi_status)); |
| 3879 | } |
| 3880 | } else { |
| 3881 | dprintk(2, "qla1280_isr: ha->rsp_ring_index = " |
| 3882 | "0x%x, mailbox[5] = 0x%x\n", |
| 3883 | ha->rsp_ring_index, mailbox[5]); |
| 3884 | dprintk(2, "qla1280_isr: response packet data\n"); |
| 3885 | qla1280_dump_buffer(2, (char *)pkt, |
| 3886 | RESPONSE_ENTRY_SIZE); |
| 3887 | } |
| 3888 | |
| 3889 | if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) { |
| 3890 | dprintk(2, "status: Cmd %p, handle %i\n", |
| 3891 | ha->outstanding_cmds[pkt->handle]->cmd, |
| 3892 | pkt->handle); |
| 3893 | if (pkt->entry_type == STATUS_TYPE) |
| 3894 | qla1280_status_entry(ha, pkt, done_q); |
| 3895 | else |
| 3896 | qla1280_error_entry(ha, pkt, done_q); |
| 3897 | /* Adjust ring index. */ |
| 3898 | ha->rsp_ring_index++; |
| 3899 | if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) { |
| 3900 | ha->rsp_ring_index = 0; |
| 3901 | ha->response_ring_ptr = ha->response_ring; |
| 3902 | } else |
| 3903 | ha->response_ring_ptr++; |
| 3904 | WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index); |
| 3905 | } |
| 3906 | } |
| 3907 | |
| 3908 | out: |
| 3909 | LEAVE("qla1280_isr"); |
| 3910 | } |
| 3911 | |
| 3912 | /* |
| 3913 | * qla1280_rst_aen |
| 3914 | * Processes asynchronous reset. |
| 3915 | * |
| 3916 | * Input: |
| 3917 | * ha = adapter block pointer. |
| 3918 | */ |
| 3919 | static void |
| 3920 | qla1280_rst_aen(struct scsi_qla_host *ha) |
| 3921 | { |
| 3922 | uint8_t bus; |
| 3923 | |
| 3924 | ENTER("qla1280_rst_aen"); |
| 3925 | |
| 3926 | if (ha->flags.online && !ha->flags.reset_active && |
| 3927 | !ha->flags.abort_isp_active) { |
| 3928 | ha->flags.reset_active = 1; |
| 3929 | while (ha->flags.reset_marker) { |
| 3930 | /* Issue marker command. */ |
| 3931 | ha->flags.reset_marker = 0; |
| 3932 | for (bus = 0; bus < ha->ports && |
| 3933 | !ha->flags.reset_marker; bus++) { |
| 3934 | if (ha->bus_settings[bus].reset_marker) { |
| 3935 | ha->bus_settings[bus].reset_marker = 0; |
| 3936 | qla1280_marker(ha, bus, 0, 0, |
| 3937 | MK_SYNC_ALL); |
| 3938 | } |
| 3939 | } |
| 3940 | } |
| 3941 | } |
| 3942 | |
| 3943 | LEAVE("qla1280_rst_aen"); |
| 3944 | } |
| 3945 | |
| 3946 | |
| 3947 | #if LINUX_VERSION_CODE < 0x020500 |
| 3948 | /* |
| 3949 | * |
| 3950 | */ |
| 3951 | static void |
| 3952 | qla1280_get_target_options(struct scsi_cmnd *cmd, struct scsi_qla_host *ha) |
| 3953 | { |
| 3954 | unsigned char *result; |
| 3955 | struct nvram *n; |
| 3956 | int bus, target, lun; |
| 3957 | |
| 3958 | bus = SCSI_BUS_32(cmd); |
| 3959 | target = SCSI_TCN_32(cmd); |
| 3960 | lun = SCSI_LUN_32(cmd); |
| 3961 | |
| 3962 | /* |
| 3963 | * Make sure to not touch anything if someone is using the |
| 3964 | * sg interface. |
| 3965 | */ |
| 3966 | if (cmd->use_sg || (CMD_RESULT(cmd) >> 16) != DID_OK || lun) |
| 3967 | return; |
| 3968 | |
| 3969 | result = cmd->request_buffer; |
| 3970 | n = &ha->nvram; |
| 3971 | |
| 3972 | n->bus[bus].target[target].parameter.f.enable_wide = 0; |
| 3973 | n->bus[bus].target[target].parameter.f.enable_sync = 0; |
| 3974 | n->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0; |
| 3975 | |
| 3976 | if (result[7] & 0x60) |
| 3977 | n->bus[bus].target[target].parameter.f.enable_wide = 1; |
| 3978 | if (result[7] & 0x10) |
| 3979 | n->bus[bus].target[target].parameter.f.enable_sync = 1; |
| 3980 | if ((result[2] >= 3) && (result[4] + 5 > 56) && |
| 3981 | (result[56] & 0x4)) |
| 3982 | n->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1; |
| 3983 | |
| 3984 | dprintk(2, "get_target_options(): wide %i, sync %i, ppr %i\n", |
| 3985 | n->bus[bus].target[target].parameter.f.enable_wide, |
| 3986 | n->bus[bus].target[target].parameter.f.enable_sync, |
| 3987 | n->bus[bus].target[target].ppr_1x160.flags.enable_ppr); |
| 3988 | } |
| 3989 | #endif |
| 3990 | |
| 3991 | /* |
| 3992 | * qla1280_status_entry |
| 3993 | * Processes received ISP status entry. |
| 3994 | * |
| 3995 | * Input: |
| 3996 | * ha = adapter block pointer. |
| 3997 | * pkt = entry pointer. |
| 3998 | * done_q = done queue. |
| 3999 | */ |
| 4000 | static void |
| 4001 | qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt, |
| 4002 | struct list_head *done_q) |
| 4003 | { |
| 4004 | unsigned int bus, target, lun; |
| 4005 | int sense_sz; |
| 4006 | struct srb *sp; |
| 4007 | struct scsi_cmnd *cmd; |
| 4008 | uint32_t handle = le32_to_cpu(pkt->handle); |
| 4009 | uint16_t scsi_status = le16_to_cpu(pkt->scsi_status); |
| 4010 | uint16_t comp_status = le16_to_cpu(pkt->comp_status); |
| 4011 | |
| 4012 | ENTER("qla1280_status_entry"); |
| 4013 | |
| 4014 | /* Validate handle. */ |
| 4015 | if (handle < MAX_OUTSTANDING_COMMANDS) |
| 4016 | sp = ha->outstanding_cmds[handle]; |
| 4017 | else |
| 4018 | sp = NULL; |
| 4019 | |
| 4020 | if (!sp) { |
| 4021 | printk(KERN_WARNING "qla1280: Status Entry invalid handle\n"); |
| 4022 | goto out; |
| 4023 | } |
| 4024 | |
| 4025 | /* Free outstanding command slot. */ |
| 4026 | ha->outstanding_cmds[handle] = NULL; |
| 4027 | |
| 4028 | cmd = sp->cmd; |
| 4029 | |
| 4030 | /* Generate LU queue on cntrl, target, LUN */ |
| 4031 | bus = SCSI_BUS_32(cmd); |
| 4032 | target = SCSI_TCN_32(cmd); |
| 4033 | lun = SCSI_LUN_32(cmd); |
| 4034 | |
| 4035 | if (comp_status || scsi_status) { |
| 4036 | dprintk(3, "scsi: comp_status = 0x%x, scsi_status = " |
| 4037 | "0x%x, handle = 0x%x\n", comp_status, |
| 4038 | scsi_status, handle); |
| 4039 | } |
| 4040 | |
| 4041 | /* Target busy */ |
| 4042 | if (scsi_status & SS_BUSY_CONDITION && |
| 4043 | scsi_status != SS_RESERVE_CONFLICT) { |
| 4044 | CMD_RESULT(cmd) = |
| 4045 | DID_BUS_BUSY << 16 | (scsi_status & 0xff); |
| 4046 | } else { |
| 4047 | |
| 4048 | /* Save ISP completion status */ |
| 4049 | CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd); |
| 4050 | |
| 4051 | if (scsi_status & SS_CHECK_CONDITION) { |
| 4052 | if (comp_status != CS_ARS_FAILED) { |
| 4053 | uint16_t req_sense_length = |
| 4054 | le16_to_cpu(pkt->req_sense_length); |
| 4055 | if (req_sense_length < CMD_SNSLEN(cmd)) |
| 4056 | sense_sz = req_sense_length; |
| 4057 | else |
| 4058 | /* |
| 4059 | * scsi_cmnd->sense_buffer is |
| 4060 | * 64 bytes, why only copy 63? |
| 4061 | * This looks wrong! /Jes |
| 4062 | */ |
| 4063 | sense_sz = CMD_SNSLEN(cmd) - 1; |
| 4064 | |
| 4065 | memcpy(cmd->sense_buffer, |
| 4066 | &pkt->req_sense_data, sense_sz); |
| 4067 | } else |
| 4068 | sense_sz = 0; |
| 4069 | memset(cmd->sense_buffer + sense_sz, 0, |
| 4070 | sizeof(cmd->sense_buffer) - sense_sz); |
| 4071 | |
| 4072 | dprintk(2, "qla1280_status_entry: Check " |
| 4073 | "condition Sense data, b %i, t %i, " |
| 4074 | "l %i\n", bus, target, lun); |
| 4075 | if (sense_sz) |
| 4076 | qla1280_dump_buffer(2, |
| 4077 | (char *)cmd->sense_buffer, |
| 4078 | sense_sz); |
| 4079 | } |
| 4080 | } |
| 4081 | |
| 4082 | /* Place command on done queue. */ |
| 4083 | list_add_tail(&sp->list, done_q); |
| 4084 | out: |
| 4085 | LEAVE("qla1280_status_entry"); |
| 4086 | } |
| 4087 | |
| 4088 | /* |
| 4089 | * qla1280_error_entry |
| 4090 | * Processes error entry. |
| 4091 | * |
| 4092 | * Input: |
| 4093 | * ha = adapter block pointer. |
| 4094 | * pkt = entry pointer. |
| 4095 | * done_q = done queue. |
| 4096 | */ |
| 4097 | static void |
| 4098 | qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt, |
| 4099 | struct list_head *done_q) |
| 4100 | { |
| 4101 | struct srb *sp; |
| 4102 | uint32_t handle = le32_to_cpu(pkt->handle); |
| 4103 | |
| 4104 | ENTER("qla1280_error_entry"); |
| 4105 | |
| 4106 | if (pkt->entry_status & BIT_3) |
| 4107 | dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n"); |
| 4108 | else if (pkt->entry_status & BIT_2) |
| 4109 | dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n"); |
| 4110 | else if (pkt->entry_status & BIT_1) |
| 4111 | dprintk(2, "qla1280_error_entry: FULL flag error\n"); |
| 4112 | else |
| 4113 | dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n"); |
| 4114 | |
| 4115 | /* Validate handle. */ |
| 4116 | if (handle < MAX_OUTSTANDING_COMMANDS) |
| 4117 | sp = ha->outstanding_cmds[handle]; |
| 4118 | else |
| 4119 | sp = NULL; |
| 4120 | |
| 4121 | if (sp) { |
| 4122 | /* Free outstanding command slot. */ |
| 4123 | ha->outstanding_cmds[handle] = NULL; |
| 4124 | |
| 4125 | /* Bad payload or header */ |
| 4126 | if (pkt->entry_status & (BIT_3 + BIT_2)) { |
| 4127 | /* Bad payload or header, set error status. */ |
| 4128 | /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */ |
| 4129 | CMD_RESULT(sp->cmd) = DID_ERROR << 16; |
| 4130 | } else if (pkt->entry_status & BIT_1) { /* FULL flag */ |
| 4131 | CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16; |
| 4132 | } else { |
| 4133 | /* Set error status. */ |
| 4134 | CMD_RESULT(sp->cmd) = DID_ERROR << 16; |
| 4135 | } |
| 4136 | |
| 4137 | /* Place command on done queue. */ |
| 4138 | list_add_tail(&sp->list, done_q); |
| 4139 | } |
| 4140 | #ifdef QLA_64BIT_PTR |
| 4141 | else if (pkt->entry_type == COMMAND_A64_TYPE) { |
| 4142 | printk(KERN_WARNING "!qla1280: Error Entry invalid handle"); |
| 4143 | } |
| 4144 | #endif |
| 4145 | |
| 4146 | LEAVE("qla1280_error_entry"); |
| 4147 | } |
| 4148 | |
| 4149 | /* |
| 4150 | * qla1280_abort_isp |
| 4151 | * Resets ISP and aborts all outstanding commands. |
| 4152 | * |
| 4153 | * Input: |
| 4154 | * ha = adapter block pointer. |
| 4155 | * |
| 4156 | * Returns: |
| 4157 | * 0 = success |
| 4158 | */ |
| 4159 | static int |
| 4160 | qla1280_abort_isp(struct scsi_qla_host *ha) |
| 4161 | { |
| 4162 | struct device_reg __iomem *reg = ha->iobase; |
| 4163 | struct srb *sp; |
| 4164 | int status = 0; |
| 4165 | int cnt; |
| 4166 | int bus; |
| 4167 | |
| 4168 | ENTER("qla1280_abort_isp"); |
| 4169 | |
| 4170 | if (ha->flags.abort_isp_active || !ha->flags.online) |
| 4171 | goto out; |
| 4172 | |
| 4173 | ha->flags.abort_isp_active = 1; |
| 4174 | |
| 4175 | /* Disable ISP interrupts. */ |
| 4176 | qla1280_disable_intrs(ha); |
| 4177 | WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); |
| 4178 | RD_REG_WORD(®->id_l); |
| 4179 | |
| 4180 | printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n", |
| 4181 | ha->host_no); |
| 4182 | /* Dequeue all commands in outstanding command list. */ |
| 4183 | for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { |
| 4184 | struct scsi_cmnd *cmd; |
| 4185 | sp = ha->outstanding_cmds[cnt]; |
| 4186 | if (sp) { |
| 4187 | |
| 4188 | cmd = sp->cmd; |
| 4189 | CMD_RESULT(cmd) = DID_RESET << 16; |
| 4190 | |
| 4191 | sp->cmd = NULL; |
| 4192 | ha->outstanding_cmds[cnt] = NULL; |
| 4193 | |
| 4194 | (*cmd->scsi_done)(cmd); |
| 4195 | |
| 4196 | sp->flags = 0; |
| 4197 | } |
| 4198 | } |
| 4199 | |
| 4200 | status = qla1280_load_firmware(ha); |
| 4201 | if (status) |
| 4202 | goto out; |
| 4203 | |
| 4204 | /* Setup adapter based on NVRAM parameters. */ |
| 4205 | qla1280_nvram_config (ha); |
| 4206 | |
| 4207 | status = qla1280_init_rings(ha); |
| 4208 | if (status) |
| 4209 | goto out; |
| 4210 | |
| 4211 | /* Issue SCSI reset. */ |
| 4212 | for (bus = 0; bus < ha->ports; bus++) |
| 4213 | qla1280_bus_reset(ha, bus); |
| 4214 | |
| 4215 | ha->flags.abort_isp_active = 0; |
| 4216 | out: |
| 4217 | if (status) { |
| 4218 | printk(KERN_WARNING |
| 4219 | "qla1280: ISP error recovery failed, board disabled"); |
| 4220 | qla1280_reset_adapter(ha); |
| 4221 | dprintk(2, "qla1280_abort_isp: **** FAILED ****\n"); |
| 4222 | } |
| 4223 | |
| 4224 | LEAVE("qla1280_abort_isp"); |
| 4225 | return status; |
| 4226 | } |
| 4227 | |
| 4228 | |
| 4229 | /* |
| 4230 | * qla1280_debounce_register |
| 4231 | * Debounce register. |
| 4232 | * |
| 4233 | * Input: |
| 4234 | * port = register address. |
| 4235 | * |
| 4236 | * Returns: |
| 4237 | * register value. |
| 4238 | */ |
| 4239 | static u16 |
| 4240 | qla1280_debounce_register(volatile u16 __iomem * addr) |
| 4241 | { |
| 4242 | volatile u16 ret; |
| 4243 | volatile u16 ret2; |
| 4244 | |
| 4245 | ret = RD_REG_WORD(addr); |
| 4246 | ret2 = RD_REG_WORD(addr); |
| 4247 | |
| 4248 | if (ret == ret2) |
| 4249 | return ret; |
| 4250 | |
| 4251 | do { |
| 4252 | cpu_relax(); |
| 4253 | ret = RD_REG_WORD(addr); |
| 4254 | ret2 = RD_REG_WORD(addr); |
| 4255 | } while (ret != ret2); |
| 4256 | |
| 4257 | return ret; |
| 4258 | } |
| 4259 | |
| 4260 | |
| 4261 | /************************************************************************ |
| 4262 | * qla1280_check_for_dead_scsi_bus * |
| 4263 | * * |
| 4264 | * This routine checks for a dead SCSI bus * |
| 4265 | ************************************************************************/ |
| 4266 | #define SET_SXP_BANK 0x0100 |
| 4267 | #define SCSI_PHASE_INVALID 0x87FF |
| 4268 | static int |
| 4269 | qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus) |
| 4270 | { |
| 4271 | uint16_t config_reg, scsi_control; |
| 4272 | struct device_reg __iomem *reg = ha->iobase; |
| 4273 | |
| 4274 | if (ha->bus_settings[bus].scsi_bus_dead) { |
| 4275 | WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); |
| 4276 | config_reg = RD_REG_WORD(®->cfg_1); |
| 4277 | WRT_REG_WORD(®->cfg_1, SET_SXP_BANK); |
| 4278 | scsi_control = RD_REG_WORD(®->scsiControlPins); |
| 4279 | WRT_REG_WORD(®->cfg_1, config_reg); |
| 4280 | WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC); |
| 4281 | |
| 4282 | if (scsi_control == SCSI_PHASE_INVALID) { |
| 4283 | ha->bus_settings[bus].scsi_bus_dead = 1; |
| 4284 | #if 0 |
| 4285 | CMD_RESULT(cp) = DID_NO_CONNECT << 16; |
| 4286 | CMD_HANDLE(cp) = INVALID_HANDLE; |
| 4287 | /* ha->actthreads--; */ |
| 4288 | |
| 4289 | (*(cp)->scsi_done)(cp); |
| 4290 | #endif |
| 4291 | return 1; /* bus is dead */ |
| 4292 | } else { |
| 4293 | ha->bus_settings[bus].scsi_bus_dead = 0; |
| 4294 | ha->bus_settings[bus].failed_reset_count = 0; |
| 4295 | } |
| 4296 | } |
| 4297 | return 0; /* bus is not dead */ |
| 4298 | } |
| 4299 | |
| 4300 | static void |
| 4301 | qla1280_get_target_parameters(struct scsi_qla_host *ha, |
| 4302 | struct scsi_device *device) |
| 4303 | { |
| 4304 | uint16_t mb[MAILBOX_REGISTER_COUNT]; |
| 4305 | int bus, target, lun; |
| 4306 | |
| 4307 | bus = device->channel; |
| 4308 | target = device->id; |
| 4309 | lun = device->lun; |
| 4310 | |
| 4311 | |
| 4312 | mb[0] = MBC_GET_TARGET_PARAMETERS; |
| 4313 | mb[1] = (uint16_t) (bus ? target | BIT_7 : target); |
| 4314 | mb[1] <<= 8; |
| 4315 | qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0, |
| 4316 | &mb[0]); |
| 4317 | |
| 4318 | printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun); |
| 4319 | |
| 4320 | if (mb[3] != 0) { |
| 4321 | printk(" Sync: period %d, offset %d", |
| 4322 | (mb[3] & 0xff), (mb[3] >> 8)); |
| 4323 | if (mb[2] & BIT_13) |
| 4324 | printk(", Wide"); |
| 4325 | if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2) |
| 4326 | printk(", DT"); |
| 4327 | } else |
| 4328 | printk(" Async"); |
| 4329 | |
| 4330 | if (DEV_SIMPLE_TAGS(device)) |
| 4331 | printk(", Tagged queuing: depth %d", device->queue_depth); |
| 4332 | printk("\n"); |
| 4333 | } |
| 4334 | |
| 4335 | |
| 4336 | #if DEBUG_QLA1280 |
| 4337 | static void |
| 4338 | __qla1280_dump_buffer(char *b, int size) |
| 4339 | { |
| 4340 | int cnt; |
| 4341 | u8 c; |
| 4342 | |
| 4343 | printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah " |
| 4344 | "Bh Ch Dh Eh Fh\n"); |
| 4345 | printk(KERN_DEBUG "---------------------------------------------" |
| 4346 | "------------------\n"); |
| 4347 | |
| 4348 | for (cnt = 0; cnt < size;) { |
| 4349 | c = *b++; |
| 4350 | |
| 4351 | printk("0x%02x", c); |
| 4352 | cnt++; |
| 4353 | if (!(cnt % 16)) |
| 4354 | printk("\n"); |
| 4355 | else |
| 4356 | printk(" "); |
| 4357 | } |
| 4358 | if (cnt % 16) |
| 4359 | printk("\n"); |
| 4360 | } |
| 4361 | |
| 4362 | /************************************************************************** |
| 4363 | * ql1280_print_scsi_cmd |
| 4364 | * |
| 4365 | **************************************************************************/ |
| 4366 | static void |
| 4367 | __qla1280_print_scsi_cmd(struct scsi_cmnd *cmd) |
| 4368 | { |
| 4369 | struct scsi_qla_host *ha; |
| 4370 | struct Scsi_Host *host = CMD_HOST(cmd); |
| 4371 | struct srb *sp; |
| 4372 | /* struct scatterlist *sg; */ |
| 4373 | |
| 4374 | int i; |
| 4375 | ha = (struct scsi_qla_host *)host->hostdata; |
| 4376 | |
| 4377 | sp = (struct srb *)CMD_SP(cmd); |
| 4378 | printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd)); |
| 4379 | printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n", |
| 4380 | SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd), |
| 4381 | CMD_CDBLEN(cmd)); |
| 4382 | printk(" CDB = "); |
| 4383 | for (i = 0; i < cmd->cmd_len; i++) { |
| 4384 | printk("0x%02x ", cmd->cmnd[i]); |
| 4385 | } |
| 4386 | printk(" seg_cnt =%d\n", cmd->use_sg); |
| 4387 | printk(" request buffer=0x%p, request buffer len=0x%x\n", |
| 4388 | cmd->request_buffer, cmd->request_bufflen); |
| 4389 | /* if (cmd->use_sg) |
| 4390 | { |
| 4391 | sg = (struct scatterlist *) cmd->request_buffer; |
| 4392 | printk(" SG buffer: \n"); |
| 4393 | qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist))); |
| 4394 | } */ |
| 4395 | printk(" tag=%d, transfersize=0x%x \n", |
| 4396 | cmd->tag, cmd->transfersize); |
| 4397 | printk(" Pid=%li, SP=0x%p\n", cmd->pid, CMD_SP(cmd)); |
| 4398 | printk(" underflow size = 0x%x, direction=0x%x\n", |
| 4399 | cmd->underflow, cmd->sc_data_direction); |
| 4400 | } |
| 4401 | |
| 4402 | /************************************************************************** |
| 4403 | * ql1280_dump_device |
| 4404 | * |
| 4405 | **************************************************************************/ |
| 4406 | static void |
| 4407 | ql1280_dump_device(struct scsi_qla_host *ha) |
| 4408 | { |
| 4409 | |
| 4410 | struct scsi_cmnd *cp; |
| 4411 | struct srb *sp; |
| 4412 | int i; |
| 4413 | |
| 4414 | printk(KERN_DEBUG "Outstanding Commands on controller:\n"); |
| 4415 | |
| 4416 | for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { |
| 4417 | if ((sp = ha->outstanding_cmds[i]) == NULL) |
| 4418 | continue; |
| 4419 | if ((cp = sp->cmd) == NULL) |
| 4420 | continue; |
| 4421 | qla1280_print_scsi_cmd(1, cp); |
| 4422 | } |
| 4423 | } |
| 4424 | #endif |
| 4425 | |
| 4426 | |
| 4427 | enum tokens { |
| 4428 | TOKEN_NVRAM, |
| 4429 | TOKEN_SYNC, |
| 4430 | TOKEN_WIDE, |
| 4431 | TOKEN_PPR, |
| 4432 | TOKEN_VERBOSE, |
| 4433 | TOKEN_DEBUG, |
| 4434 | }; |
| 4435 | |
| 4436 | struct setup_tokens { |
| 4437 | char *token; |
| 4438 | int val; |
| 4439 | }; |
| 4440 | |
| 4441 | static struct setup_tokens setup_token[] __initdata = |
| 4442 | { |
| 4443 | { "nvram", TOKEN_NVRAM }, |
| 4444 | { "sync", TOKEN_SYNC }, |
| 4445 | { "wide", TOKEN_WIDE }, |
| 4446 | { "ppr", TOKEN_PPR }, |
| 4447 | { "verbose", TOKEN_VERBOSE }, |
| 4448 | { "debug", TOKEN_DEBUG }, |
| 4449 | }; |
| 4450 | |
| 4451 | |
| 4452 | /************************************************************************** |
| 4453 | * qla1280_setup |
| 4454 | * |
| 4455 | * Handle boot parameters. This really needs to be changed so one |
| 4456 | * can specify per adapter parameters. |
| 4457 | **************************************************************************/ |
| 4458 | static int __init |
| 4459 | qla1280_setup(char *s) |
| 4460 | { |
| 4461 | char *cp, *ptr; |
| 4462 | unsigned long val; |
| 4463 | int toke; |
| 4464 | |
| 4465 | cp = s; |
| 4466 | |
| 4467 | while (cp && (ptr = strchr(cp, ':'))) { |
| 4468 | ptr++; |
| 4469 | if (!strcmp(ptr, "yes")) { |
| 4470 | val = 0x10000; |
| 4471 | ptr += 3; |
| 4472 | } else if (!strcmp(ptr, "no")) { |
| 4473 | val = 0; |
| 4474 | ptr += 2; |
| 4475 | } else |
| 4476 | val = simple_strtoul(ptr, &ptr, 0); |
| 4477 | |
| 4478 | switch ((toke = qla1280_get_token(cp))) { |
| 4479 | case TOKEN_NVRAM: |
| 4480 | if (!val) |
| 4481 | driver_setup.no_nvram = 1; |
| 4482 | break; |
| 4483 | case TOKEN_SYNC: |
| 4484 | if (!val) |
| 4485 | driver_setup.no_sync = 1; |
| 4486 | else if (val != 0x10000) |
| 4487 | driver_setup.sync_mask = val; |
| 4488 | break; |
| 4489 | case TOKEN_WIDE: |
| 4490 | if (!val) |
| 4491 | driver_setup.no_wide = 1; |
| 4492 | else if (val != 0x10000) |
| 4493 | driver_setup.wide_mask = val; |
| 4494 | break; |
| 4495 | case TOKEN_PPR: |
| 4496 | if (!val) |
| 4497 | driver_setup.no_ppr = 1; |
| 4498 | else if (val != 0x10000) |
| 4499 | driver_setup.ppr_mask = val; |
| 4500 | break; |
| 4501 | case TOKEN_VERBOSE: |
| 4502 | qla1280_verbose = val; |
| 4503 | break; |
| 4504 | default: |
| 4505 | printk(KERN_INFO "qla1280: unknown boot option %s\n", |
| 4506 | cp); |
| 4507 | } |
| 4508 | |
| 4509 | cp = strchr(ptr, ';'); |
| 4510 | if (cp) |
| 4511 | cp++; |
| 4512 | else { |
| 4513 | break; |
| 4514 | } |
| 4515 | } |
| 4516 | return 1; |
| 4517 | } |
| 4518 | |
| 4519 | |
| 4520 | static int |
| 4521 | qla1280_get_token(char *str) |
| 4522 | { |
| 4523 | char *sep; |
| 4524 | long ret = -1; |
| 4525 | int i, len; |
| 4526 | |
| 4527 | len = sizeof(setup_token)/sizeof(struct setup_tokens); |
| 4528 | |
| 4529 | sep = strchr(str, ':'); |
| 4530 | |
| 4531 | if (sep) { |
| 4532 | for (i = 0; i < len; i++){ |
| 4533 | |
| 4534 | if (!strncmp(setup_token[i].token, str, (sep - str))) { |
| 4535 | ret = setup_token[i].val; |
| 4536 | break; |
| 4537 | } |
| 4538 | } |
| 4539 | } |
| 4540 | |
| 4541 | return ret; |
| 4542 | } |
| 4543 | |
| 4544 | #if LINUX_VERSION_CODE >= 0x020600 |
| 4545 | static struct scsi_host_template qla1280_driver_template = { |
| 4546 | .module = THIS_MODULE, |
| 4547 | .proc_name = "qla1280", |
| 4548 | .name = "Qlogic ISP 1280/12160", |
| 4549 | .info = qla1280_info, |
| 4550 | .slave_configure = qla1280_slave_configure, |
| 4551 | .queuecommand = qla1280_queuecommand, |
| 4552 | .eh_abort_handler = qla1280_eh_abort, |
| 4553 | .eh_device_reset_handler= qla1280_eh_device_reset, |
| 4554 | .eh_bus_reset_handler = qla1280_eh_bus_reset, |
| 4555 | .eh_host_reset_handler = qla1280_eh_adapter_reset, |
| 4556 | .bios_param = qla1280_biosparam, |
| 4557 | .can_queue = 0xfffff, |
| 4558 | .this_id = -1, |
| 4559 | .sg_tablesize = SG_ALL, |
| 4560 | .cmd_per_lun = 1, |
| 4561 | .use_clustering = ENABLE_CLUSTERING, |
| 4562 | }; |
| 4563 | #else |
| 4564 | static Scsi_Host_Template qla1280_driver_template = { |
| 4565 | .proc_name = "qla1280", |
| 4566 | .name = "Qlogic ISP 1280/12160", |
| 4567 | .detect = qla1280_detect, |
| 4568 | .release = qla1280_release, |
| 4569 | .info = qla1280_info, |
| 4570 | .queuecommand = qla1280_queuecommand, |
| 4571 | .eh_abort_handler = qla1280_eh_abort, |
| 4572 | .eh_device_reset_handler= qla1280_eh_device_reset, |
| 4573 | .eh_bus_reset_handler = qla1280_eh_bus_reset, |
| 4574 | .eh_host_reset_handler = qla1280_eh_adapter_reset, |
| 4575 | .bios_param = qla1280_biosparam_old, |
| 4576 | .can_queue = 0xfffff, |
| 4577 | .this_id = -1, |
| 4578 | .sg_tablesize = SG_ALL, |
| 4579 | .cmd_per_lun = 1, |
| 4580 | .use_clustering = ENABLE_CLUSTERING, |
| 4581 | .use_new_eh_code = 1, |
| 4582 | }; |
| 4583 | #endif |
| 4584 | |
| 4585 | static int __devinit |
| 4586 | qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) |
| 4587 | { |
| 4588 | int devnum = id->driver_data; |
| 4589 | struct qla_boards *bdp = &ql1280_board_tbl[devnum]; |
| 4590 | struct Scsi_Host *host; |
| 4591 | struct scsi_qla_host *ha; |
| 4592 | int error = -ENODEV; |
| 4593 | |
| 4594 | /* Bypass all AMI SUBSYS VENDOR IDs */ |
| 4595 | if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) { |
| 4596 | printk(KERN_INFO |
| 4597 | "qla1280: Skipping AMI SubSys Vendor ID Chip\n"); |
| 4598 | goto error; |
| 4599 | } |
| 4600 | |
| 4601 | printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n", |
| 4602 | bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn)); |
| 4603 | |
| 4604 | if (pci_enable_device(pdev)) { |
| 4605 | printk(KERN_WARNING |
| 4606 | "qla1280: Failed to enabled pci device, aborting.\n"); |
| 4607 | goto error; |
| 4608 | } |
| 4609 | |
| 4610 | pci_set_master(pdev); |
| 4611 | |
| 4612 | error = -ENOMEM; |
| 4613 | host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha)); |
| 4614 | if (!host) { |
| 4615 | printk(KERN_WARNING |
| 4616 | "qla1280: Failed to register host, aborting.\n"); |
| 4617 | goto error_disable_device; |
| 4618 | } |
| 4619 | |
| 4620 | ha = (struct scsi_qla_host *)host->hostdata; |
| 4621 | memset(ha, 0, sizeof(struct scsi_qla_host)); |
| 4622 | |
| 4623 | ha->pdev = pdev; |
| 4624 | ha->devnum = devnum; /* specifies microcode load address */ |
| 4625 | |
| 4626 | #ifdef QLA_64BIT_PTR |
| 4627 | if (pci_set_dma_mask(ha->pdev, (dma_addr_t) ~ 0ULL)) { |
| 4628 | if (pci_set_dma_mask(ha->pdev, 0xffffffff)) { |
| 4629 | printk(KERN_WARNING "scsi(%li): Unable to set a " |
| 4630 | " suitable DMA mask - aboring\n", ha->host_no); |
| 4631 | error = -ENODEV; |
| 4632 | goto error_free_irq; |
| 4633 | } |
| 4634 | } else |
| 4635 | dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n", |
| 4636 | ha->host_no); |
| 4637 | #else |
| 4638 | if (pci_set_dma_mask(ha->pdev, 0xffffffff)) { |
| 4639 | printk(KERN_WARNING "scsi(%li): Unable to set a " |
| 4640 | " suitable DMA mask - aboring\n", ha->host_no); |
| 4641 | error = -ENODEV; |
| 4642 | goto error_free_irq; |
| 4643 | } |
| 4644 | #endif |
| 4645 | |
| 4646 | ha->request_ring = pci_alloc_consistent(ha->pdev, |
| 4647 | ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))), |
| 4648 | &ha->request_dma); |
| 4649 | if (!ha->request_ring) { |
| 4650 | printk(KERN_INFO "qla1280: Failed to get request memory\n"); |
| 4651 | goto error_put_host; |
| 4652 | } |
| 4653 | |
| 4654 | ha->response_ring = pci_alloc_consistent(ha->pdev, |
| 4655 | ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))), |
| 4656 | &ha->response_dma); |
| 4657 | if (!ha->response_ring) { |
| 4658 | printk(KERN_INFO "qla1280: Failed to get response memory\n"); |
| 4659 | goto error_free_request_ring; |
| 4660 | } |
| 4661 | |
| 4662 | ha->ports = bdp->numPorts; |
| 4663 | |
| 4664 | ha->host = host; |
| 4665 | ha->host_no = host->host_no; |
| 4666 | |
| 4667 | host->irq = pdev->irq; |
| 4668 | host->max_channel = bdp->numPorts - 1; |
| 4669 | host->max_lun = MAX_LUNS - 1; |
| 4670 | host->max_id = MAX_TARGETS; |
| 4671 | host->max_sectors = 1024; |
| 4672 | host->unique_id = host->host_no; |
| 4673 | |
| 4674 | #if LINUX_VERSION_CODE < 0x020545 |
| 4675 | host->select_queue_depths = qla1280_select_queue_depth; |
| 4676 | #endif |
| 4677 | |
| 4678 | error = -ENODEV; |
| 4679 | |
| 4680 | #if MEMORY_MAPPED_IO |
| 4681 | ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1), |
| 4682 | pci_resource_len(ha->pdev, 1)); |
| 4683 | if (!ha->mmpbase) { |
| 4684 | printk(KERN_INFO "qla1280: Unable to map I/O memory\n"); |
| 4685 | goto error_free_response_ring; |
| 4686 | } |
| 4687 | |
| 4688 | host->base = (unsigned long)ha->mmpbase; |
| 4689 | ha->iobase = (struct device_reg __iomem *)ha->mmpbase; |
| 4690 | #else |
| 4691 | host->io_port = pci_resource_start(ha->pdev, 0); |
| 4692 | if (!request_region(host->io_port, 0xff, "qla1280")) { |
| 4693 | printk(KERN_INFO "qla1280: Failed to reserve i/o region " |
| 4694 | "0x%04lx-0x%04lx - already in use\n", |
| 4695 | host->io_port, host->io_port + 0xff); |
| 4696 | goto error_free_response_ring; |
| 4697 | } |
| 4698 | |
| 4699 | ha->iobase = (struct device_reg *)host->io_port; |
| 4700 | #endif |
| 4701 | |
| 4702 | INIT_LIST_HEAD(&ha->done_q); |
| 4703 | |
| 4704 | /* Disable ISP interrupts. */ |
| 4705 | qla1280_disable_intrs(ha); |
| 4706 | |
| 4707 | if (request_irq(pdev->irq, qla1280_intr_handler, SA_SHIRQ, |
| 4708 | "qla1280", ha)) { |
| 4709 | printk("qla1280 : Failed to reserve interrupt %d already " |
| 4710 | "in use\n", pdev->irq); |
| 4711 | goto error_release_region; |
| 4712 | } |
| 4713 | |
| 4714 | /* load the F/W, read paramaters, and init the H/W */ |
| 4715 | if (qla1280_initialize_adapter(ha)) { |
| 4716 | printk(KERN_INFO "qla1x160: Failed to initialize adapter\n"); |
| 4717 | goto error_free_irq; |
| 4718 | } |
| 4719 | |
| 4720 | /* set our host ID (need to do something about our two IDs) */ |
| 4721 | host->this_id = ha->bus_settings[0].id; |
| 4722 | |
| 4723 | pci_set_drvdata(pdev, host); |
| 4724 | |
| 4725 | #if LINUX_VERSION_CODE >= 0x020600 |
| 4726 | error = scsi_add_host(host, &pdev->dev); |
| 4727 | if (error) |
| 4728 | goto error_disable_adapter; |
| 4729 | scsi_scan_host(host); |
| 4730 | #else |
| 4731 | scsi_set_pci_device(host, pdev); |
| 4732 | #endif |
| 4733 | |
| 4734 | return 0; |
| 4735 | |
| 4736 | #if LINUX_VERSION_CODE >= 0x020600 |
| 4737 | error_disable_adapter: |
| 4738 | WRT_REG_WORD(&ha->iobase->ictrl, 0); |
| 4739 | #endif |
| 4740 | error_free_irq: |
| 4741 | free_irq(pdev->irq, ha); |
| 4742 | error_release_region: |
| 4743 | #if MEMORY_MAPPED_IO |
| 4744 | iounmap(ha->mmpbase); |
| 4745 | #else |
| 4746 | release_region(host->io_port, 0xff); |
| 4747 | #endif |
| 4748 | error_free_response_ring: |
| 4749 | pci_free_consistent(ha->pdev, |
| 4750 | ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))), |
| 4751 | ha->response_ring, ha->response_dma); |
| 4752 | error_free_request_ring: |
| 4753 | pci_free_consistent(ha->pdev, |
| 4754 | ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))), |
| 4755 | ha->request_ring, ha->request_dma); |
| 4756 | error_put_host: |
| 4757 | scsi_host_put(host); |
| 4758 | error_disable_device: |
| 4759 | pci_disable_device(pdev); |
| 4760 | error: |
| 4761 | return error; |
| 4762 | } |
| 4763 | |
| 4764 | |
| 4765 | static void __devexit |
| 4766 | qla1280_remove_one(struct pci_dev *pdev) |
| 4767 | { |
| 4768 | struct Scsi_Host *host = pci_get_drvdata(pdev); |
| 4769 | struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; |
| 4770 | |
| 4771 | #if LINUX_VERSION_CODE >= 0x020600 |
| 4772 | scsi_remove_host(host); |
| 4773 | #endif |
| 4774 | |
| 4775 | WRT_REG_WORD(&ha->iobase->ictrl, 0); |
| 4776 | |
| 4777 | free_irq(pdev->irq, ha); |
| 4778 | |
| 4779 | #if MEMORY_MAPPED_IO |
| 4780 | iounmap(ha->mmpbase); |
| 4781 | #else |
| 4782 | release_region(host->io_port, 0xff); |
| 4783 | #endif |
| 4784 | |
| 4785 | pci_free_consistent(ha->pdev, |
| 4786 | ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))), |
| 4787 | ha->request_ring, ha->request_dma); |
| 4788 | pci_free_consistent(ha->pdev, |
| 4789 | ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))), |
| 4790 | ha->response_ring, ha->response_dma); |
| 4791 | |
| 4792 | pci_disable_device(pdev); |
| 4793 | |
| 4794 | scsi_host_put(host); |
| 4795 | } |
| 4796 | |
| 4797 | #if LINUX_VERSION_CODE >= 0x020600 |
| 4798 | static struct pci_driver qla1280_pci_driver = { |
| 4799 | .name = "qla1280", |
| 4800 | .id_table = qla1280_pci_tbl, |
| 4801 | .probe = qla1280_probe_one, |
| 4802 | .remove = __devexit_p(qla1280_remove_one), |
| 4803 | }; |
| 4804 | |
| 4805 | static int __init |
| 4806 | qla1280_init(void) |
| 4807 | { |
| 4808 | if (sizeof(struct srb) > sizeof(struct scsi_pointer)) { |
| 4809 | printk(KERN_WARNING |
| 4810 | "qla1280: struct srb too big, aborting\n"); |
| 4811 | return -EINVAL; |
| 4812 | } |
| 4813 | |
| 4814 | #ifdef MODULE |
| 4815 | /* |
| 4816 | * If we are called as a module, the qla1280 pointer may not be null |
| 4817 | * and it would point to our bootup string, just like on the lilo |
| 4818 | * command line. IF not NULL, then process this config string with |
| 4819 | * qla1280_setup |
| 4820 | * |
| 4821 | * Boot time Options |
| 4822 | * To add options at boot time add a line to your lilo.conf file like: |
| 4823 | * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}" |
| 4824 | * which will result in the first four devices on the first two |
| 4825 | * controllers being set to a tagged queue depth of 32. |
| 4826 | */ |
| 4827 | if (qla1280) |
| 4828 | qla1280_setup(qla1280); |
| 4829 | #endif |
| 4830 | |
| 4831 | return pci_module_init(&qla1280_pci_driver); |
| 4832 | } |
| 4833 | |
| 4834 | static void __exit |
| 4835 | qla1280_exit(void) |
| 4836 | { |
| 4837 | pci_unregister_driver(&qla1280_pci_driver); |
| 4838 | } |
| 4839 | |
| 4840 | module_init(qla1280_init); |
| 4841 | module_exit(qla1280_exit); |
| 4842 | |
| 4843 | #else |
| 4844 | # define driver_template qla1280_driver_template |
| 4845 | # include "scsi_module.c" |
| 4846 | #endif |
| 4847 | |
| 4848 | MODULE_AUTHOR("Qlogic & Jes Sorensen"); |
| 4849 | MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver"); |
| 4850 | MODULE_LICENSE("GPL"); |
| 4851 | MODULE_VERSION(QLA1280_VERSION); |
| 4852 | |
| 4853 | /* |
| 4854 | * Overrides for Emacs so that we almost follow Linus's tabbing style. |
| 4855 | * Emacs will notice this stuff at the end of the file and automatically |
| 4856 | * adjust the settings for this buffer only. This must remain at the end |
| 4857 | * of the file. |
| 4858 | * --------------------------------------------------------------------------- |
| 4859 | * Local variables: |
| 4860 | * c-basic-offset: 8 |
| 4861 | * tab-width: 8 |
| 4862 | * End: |
| 4863 | */ |