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 "3.26" 21 /***************************************************************************** 22 Revision History: 23 Rev 3.26, January 16, 2006 Jes Sorensen 24 - Ditch all < 2.6 support 25 Rev 3.25.1, February 10, 2005 Christoph Hellwig 26 - use pci_map_single to map non-S/G requests 27 - remove qla1280_proc_info 28 Rev 3.25, September 28, 2004, Christoph Hellwig 29 - add support for ISP1020/1040 30 - don't include "scsi.h" anymore for 2.6.x 31 Rev 3.24.4 June 7, 2004 Christoph Hellwig 32 - restructure firmware loading, cleanup initialization code 33 - prepare support for ISP1020/1040 chips 34 Rev 3.24.3 January 19, 2004, Jes Sorensen 35 - Handle PCI DMA mask settings correctly 36 - Correct order of error handling in probe_one, free_irq should not 37 be called if request_irq failed 38 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez 39 - Big endian fixes (James) 40 - Remove bogus IOCB content on zero data transfer commands (Andrew) 41 Rev 3.24.1 January 5, 2004, Jes Sorensen 42 - Initialize completion queue to avoid OOPS on probe 43 - Handle interrupts during mailbox testing 44 Rev 3.24 November 17, 2003, Christoph Hellwig 45 - use struct list_head for completion queue 46 - avoid old Scsi_FOO typedefs 47 - cleanup 2.4 compat glue a bit 48 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h" 49 - make initialization for memory mapped vs port I/O more similar 50 - remove broken pci config space manipulation 51 - kill more cruft 52 - this is an almost perfect 2.6 scsi driver now! ;) 53 Rev 3.23.39 December 17, 2003, Jes Sorensen 54 - Delete completion queue from srb if mailbox command failed to 55 to avoid qla1280_done completeting qla1280_error_action's 56 obsolete context 57 - Reduce arguments for qla1280_done 58 Rev 3.23.38 October 18, 2003, Christoph Hellwig 59 - Convert to new-style hotplugable driver for 2.6 60 - Fix missing scsi_unregister/scsi_host_put on HBA removal 61 - Kill some more cruft 62 Rev 3.23.37 October 1, 2003, Jes Sorensen 63 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another 64 random CONFIG option 65 - Clean up locking in probe path 66 Rev 3.23.36 October 1, 2003, Christoph Hellwig 67 - queuecommand only ever receives new commands - clear flags 68 - Reintegrate lost fixes from Linux 2.5 69 Rev 3.23.35 August 14, 2003, Jes Sorensen 70 - Build against 2.6 71 Rev 3.23.34 July 23, 2003, Jes Sorensen 72 - Remove pointless TRUE/FALSE macros 73 - Clean up vchan handling 74 Rev 3.23.33 July 3, 2003, Jes Sorensen 75 - Don't define register access macros before define determining MMIO. 76 This just happend to work out on ia64 but not elsewhere. 77 - Don't try and read from the card while it is in reset as 78 it won't respond and causes an MCA 79 Rev 3.23.32 June 23, 2003, Jes Sorensen 80 - Basic support for boot time arguments 81 Rev 3.23.31 June 8, 2003, Jes Sorensen 82 - Reduce boot time messages 83 Rev 3.23.30 June 6, 2003, Jes Sorensen 84 - Do not enable sync/wide/ppr before it has been determined 85 that the target device actually supports it 86 - Enable DMA arbitration for multi channel controllers 87 Rev 3.23.29 June 3, 2003, Jes Sorensen 88 - Port to 2.5.69 89 Rev 3.23.28 June 3, 2003, Jes Sorensen 90 - Eliminate duplicate marker commands on bus resets 91 - Handle outstanding commands appropriately on bus/device resets 92 Rev 3.23.27 May 28, 2003, Jes Sorensen 93 - Remove bogus input queue code, let the Linux SCSI layer do the work 94 - Clean up NVRAM handling, only read it once from the card 95 - Add a number of missing default nvram parameters 96 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen 97 - Use completion queue for mailbox commands instead of busy wait 98 Rev 3.23.25 Beta May 27, 2003, James Bottomley 99 - Migrate to use new error handling code 100 Rev 3.23.24 Beta May 21, 2003, James Bottomley 101 - Big endian support 102 - Cleanup data direction code 103 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen 104 - Switch to using MMIO instead of PIO 105 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen 106 - Fix PCI parity problem with 12160 during reset. 107 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen 108 - Use pci_map_page()/pci_unmap_page() instead of map_single version. 109 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen 110 - Remove < 2.4.x support 111 - Introduce HOST_LOCK to make the spin lock changes portable. 112 - Remove a bunch of idiotic and unnecessary typedef's 113 - Kill all leftovers of target-mode support which never worked anyway 114 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds 115 - Do qla1280_pci_config() before calling request_irq() and 116 request_region() 117 - Use pci_dma_hi32() to handle upper word of DMA addresses instead 118 of large shifts 119 - Hand correct arguments to free_irq() in case of failure 120 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen 121 - Run source through Lindent and clean up the output 122 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen 123 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32 124 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen 125 - Rely on mailbox commands generating interrupts - do not 126 run qla1280_isr() from ql1280_mailbox_command() 127 - Remove device_reg_t 128 - Integrate ql12160_set_target_parameters() with 1280 version 129 - Make qla1280_setup() non static 130 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request 131 sent to the card - this command pauses the firmare!!! 132 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen 133 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions 134 - Remove a pile of pointless and confusing (srb_t **) and 135 (scsi_lu_t *) typecasts 136 - Explicit mark that we do not use the new error handling (for now) 137 - Remove scsi_qla_host_t and use 'struct' instead 138 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled, 139 pci_64bit_slot flags which weren't used for anything anyway 140 - Grab host->host_lock while calling qla1280_isr() from abort() 141 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we 142 do not need to save/restore flags in the interrupt handler 143 - Enable interrupts early (before any mailbox access) in preparation 144 for cleaning up the mailbox handling 145 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen 146 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace 147 it with proper use of dprintk(). 148 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take 149 a debug level argument to determine if data is to be printed 150 - Add KERN_* info to printk() 151 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen 152 - Significant cosmetic cleanups 153 - Change debug code to use dprintk() and remove #if mess 154 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen 155 - More cosmetic cleanups, fix places treating return as function 156 - use cpu_relax() in qla1280_debounce_register() 157 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen 158 - Make it compile under 2.5.5 159 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen 160 - Do no typecast short * to long * in QL1280BoardTbl, this 161 broke miserably on big endian boxes 162 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen 163 - Remove pre 2.2 hack for checking for reentrance in interrupt handler 164 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32 165 unsigned int to match the types from struct scsi_cmnd 166 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen 167 - Remove bogus timer_t typedef from qla1280.h 168 - Remove obsolete pre 2.2 PCI setup code, use proper #define's 169 for PCI_ values, call pci_set_master() 170 - Fix memleak of qla1280_buffer on module unload 171 - Only compile module parsing code #ifdef MODULE - should be 172 changed to use individual MODULE_PARM's later 173 - Remove dummy_buffer that was never modified nor printed 174 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove 175 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls 176 - Remove \r from print statements, this is Linux, not DOS 177 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK} 178 dummy macros 179 - Remove C++ compile hack in header file as Linux driver are not 180 supposed to be compiled as C++ 181 - Kill MS_64BITS macro as it makes the code more readable 182 - Remove unnecessary flags.in_interrupts bit 183 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen 184 - Dont' check for set flags on q->q_flag one by one in qla1280_next() 185 - Check whether the interrupt was generated by the QLA1280 before 186 doing any processing 187 - qla1280_status_entry(): Only zero out part of sense_buffer that 188 is not being copied into 189 - Remove more superflouous typecasts 190 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy() 191 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel 192 - Don't walk the entire list in qla1280_putq_t() just to directly 193 grab the pointer to the last element afterwards 194 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen 195 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver 196 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen 197 - Set dev->max_sectors to 1024 198 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen 199 - Provide compat macros for pci_enable_device(), pci_find_subsys() 200 and scsi_set_pci_device() 201 - Call scsi_set_pci_device() for all devices 202 - Reduce size of kernel version dependent device probe code 203 - Move duplicate probe/init code to separate function 204 - Handle error if qla1280_mem_alloc() fails 205 - Kill OFFSET() macro and use Linux's PCI definitions instead 206 - Kill private structure defining PCI config space (struct config_reg) 207 - Only allocate I/O port region if not in MMIO mode 208 - Remove duplicate (unused) sanity check of sife of srb_t 209 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen 210 - Change home-brew memset() implementations to use memset() 211 - Remove all references to COMTRACE() - accessing a PC's COM2 serial 212 port directly is not legal under Linux. 213 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen 214 - Remove pre 2.2 kernel support 215 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat) 216 - Fix MMIO access to use readl/writel instead of directly 217 dereferencing pointers 218 - Nuke MSDOS debugging code 219 - Change true/false data types to int from uint8_t 220 - Use int for counters instead of uint8_t etc. 221 - Clean up size & byte order conversion macro usage 222 Rev 3.23 Beta January 11, 2001 BN Qlogic 223 - Added check of device_id when handling non 224 QLA12160s during detect(). 225 Rev 3.22 Beta January 5, 2001 BN Qlogic 226 - Changed queue_task() to schedule_task() 227 for kernels 2.4.0 and higher. 228 Note: 2.4.0-testxx kernels released prior to 229 the actual 2.4.0 kernel release on January 2001 230 will get compile/link errors with schedule_task(). 231 Please update your kernel to released 2.4.0 level, 232 or comment lines in this file flagged with 3.22 233 to resolve compile/link error of schedule_task(). 234 - Added -DCONFIG_SMP in addition to -D__SMP__ 235 in Makefile for 2.4.0 builds of driver as module. 236 Rev 3.21 Beta January 4, 2001 BN Qlogic 237 - Changed criteria of 64/32 Bit mode of HBA 238 operation according to BITS_PER_LONG rather 239 than HBA's NVRAM setting of >4Gig memory bit; 240 so that the HBA auto-configures without the need 241 to setup each system individually. 242 Rev 3.20 Beta December 5, 2000 BN Qlogic 243 - Added priority handling to IA-64 onboard SCSI 244 ISP12160 chip for kernels greater than 2.3.18. 245 - Added irqrestore for qla1280_intr_handler. 246 - Enabled /proc/scsi/qla1280 interface. 247 - Clear /proc/scsi/qla1280 counters in detect(). 248 Rev 3.19 Beta October 13, 2000 BN Qlogic 249 - Declare driver_template for new kernel 250 (2.4.0 and greater) scsi initialization scheme. 251 - Update /proc/scsi entry for 2.3.18 kernels and 252 above as qla1280 253 Rev 3.18 Beta October 10, 2000 BN Qlogic 254 - Changed scan order of adapters to map 255 the QLA12160 followed by the QLA1280. 256 Rev 3.17 Beta September 18, 2000 BN Qlogic 257 - Removed warnings for 32 bit 2.4.x compiles 258 - Corrected declared size for request and response 259 DMA addresses that are kept in each ha 260 Rev. 3.16 Beta August 25, 2000 BN Qlogic 261 - Corrected 64 bit addressing issue on IA-64 262 where the upper 32 bits were not properly 263 passed to the RISC engine. 264 Rev. 3.15 Beta August 22, 2000 BN Qlogic 265 - Modified qla1280_setup_chip to properly load 266 ISP firmware for greater that 4 Gig memory on IA-64 267 Rev. 3.14 Beta August 16, 2000 BN Qlogic 268 - Added setting of dma_mask to full 64 bit 269 if flags.enable_64bit_addressing is set in NVRAM 270 Rev. 3.13 Beta August 16, 2000 BN Qlogic 271 - Use new PCI DMA mapping APIs for 2.4.x kernel 272 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic 273 - Added check of pci_enable_device to detect() for 2.3.x 274 - Use pci_resource_start() instead of 275 pdev->resource[0].start in detect() for 2.3.x 276 - Updated driver version 277 Rev. 3.11 July 14, 2000 BN Qlogic 278 - Updated SCSI Firmware to following versions: 279 qla1x80: 8.13.08 280 qla1x160: 10.04.08 281 - Updated driver version to 3.11 282 Rev. 3.10 June 23, 2000 BN Qlogic 283 - Added filtering of AMI SubSys Vendor ID devices 284 Rev. 3.9 285 - DEBUG_QLA1280 undefined and new version BN Qlogic 286 Rev. 3.08b May 9, 2000 MD Dell 287 - Added logic to check against AMI subsystem vendor ID 288 Rev. 3.08 May 4, 2000 DG Qlogic 289 - Added logic to check for PCI subsystem ID. 290 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic 291 - Updated SCSI Firmware to following versions: 292 qla12160: 10.01.19 293 qla1280: 8.09.00 294 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic 295 - Internal revision; not released 296 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic 297 - Edit correction for virt_to_bus and PROC. 298 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic 299 - Merge changes from ia64 port. 300 Rev. 3.03 Mar 28, 2000 BN Qlogic 301 - Increase version to reflect new code drop with compile fix 302 of issue with inclusion of linux/spinlock for 2.3 kernels 303 Rev. 3.02 Mar 15, 2000 BN Qlogic 304 - Merge qla1280_proc_info from 2.10 code base 305 Rev. 3.01 Feb 10, 2000 BN Qlogic 306 - Corrected code to compile on a 2.2.x kernel. 307 Rev. 3.00 Jan 17, 2000 DG Qlogic 308 - Added 64-bit support. 309 Rev. 2.07 Nov 9, 1999 DG Qlogic 310 - Added new routine to set target parameters for ISP12160. 311 Rev. 2.06 Sept 10, 1999 DG Qlogic 312 - Added support for ISP12160 Ultra 3 chip. 313 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont 314 - Modified code to remove errors generated when compiling with 315 Cygnus IA64 Compiler. 316 - Changed conversion of pointers to unsigned longs instead of integers. 317 - Changed type of I/O port variables from uint32_t to unsigned long. 318 - Modified OFFSET macro to work with 64-bit as well as 32-bit. 319 - Changed sprintf and printk format specifiers for pointers to %p. 320 - Changed some int to long type casts where needed in sprintf & printk. 321 - Added l modifiers to sprintf and printk format specifiers for longs. 322 - Removed unused local variables. 323 Rev. 1.20 June 8, 1999 DG, Qlogic 324 Changes to support RedHat release 6.0 (kernel 2.2.5). 325 - Added SCSI exclusive access lock (io_request_lock) when accessing 326 the adapter. 327 - Added changes for the new LINUX interface template. Some new error 328 handling routines have been added to the template, but for now we 329 will use the old ones. 330 - Initial Beta Release. 331 *****************************************************************************/ 332 333 334 #include <linux/module.h> 335 336 #include <linux/version.h> 337 #include <linux/types.h> 338 #include <linux/string.h> 339 #include <linux/errno.h> 340 #include <linux/kernel.h> 341 #include <linux/ioport.h> 342 #include <linux/delay.h> 343 #include <linux/timer.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 #include <linux/dma-mapping.h> 352 353 #include <asm/io.h> 354 #include <asm/irq.h> 355 #include <asm/byteorder.h> 356 #include <asm/processor.h> 357 #include <asm/types.h> 358 #include <asm/system.h> 359 360 #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> 365 366 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 367 #include <asm/sn/io.h> 368 #endif 369 370 #if LINUX_VERSION_CODE < 0x020600 371 #error "Kernels older than 2.6.0 are no longer supported" 372 #endif 373 374 375 /* 376 * Compile time Options: 377 * 0 - Disable and 1 - Enable 378 */ 379 #define DEBUG_QLA1280_INTR 0 380 #define DEBUG_PRINT_NVRAM 0 381 #define DEBUG_QLA1280 0 382 383 /* 384 * The SGI VISWS is broken and doesn't support MMIO ;-( 385 */ 386 #ifdef CONFIG_X86_VISWS 387 #define MEMORY_MAPPED_IO 0 388 #else 389 #define MEMORY_MAPPED_IO 1 390 #endif 391 392 #define UNIQUE_FW_NAME 393 #include "qla1280.h" 394 #include "ql12160_fw.h" /* ISP RISC codes */ 395 #include "ql1280_fw.h" 396 #include "ql1040_fw.h" 397 398 #ifndef BITS_PER_LONG 399 #error "BITS_PER_LONG not defined!" 400 #endif 401 #if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM 402 #define QLA_64BIT_PTR 1 403 #endif 404 405 #ifdef QLA_64BIT_PTR 406 #define pci_dma_hi32(a) ((a >> 16) >> 16) 407 #else 408 #define pci_dma_hi32(a) 0 409 #endif 410 #define pci_dma_lo32(a) (a & 0xffffffff) 411 412 #define NVRAM_DELAY() udelay(500) /* 2 microseconds */ 413 414 #if defined(__ia64__) && !defined(ia64_platform_is) 415 #define ia64_platform_is(foo) (!strcmp(x, platform_name)) 416 #endif 417 418 419 #define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020) 420 #define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \ 421 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240) 422 #define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \ 423 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160) 424 425 426 static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *); 427 static void qla1280_remove_one(struct pci_dev *); 428 429 /* 430 * QLogic Driver Support Function Prototypes. 431 */ 432 static void qla1280_done(struct scsi_qla_host *); 433 static int qla1280_get_token(char *); 434 static int qla1280_setup(char *s) __init; 435 436 /* 437 * QLogic ISP1280 Hardware Support Function Prototypes. 438 */ 439 static int qla1280_load_firmware(struct scsi_qla_host *); 440 static int qla1280_init_rings(struct scsi_qla_host *); 441 static int qla1280_nvram_config(struct scsi_qla_host *); 442 static int qla1280_mailbox_command(struct scsi_qla_host *, 443 uint8_t, uint16_t *); 444 static int qla1280_bus_reset(struct scsi_qla_host *, int); 445 static int qla1280_device_reset(struct scsi_qla_host *, int, int); 446 static int qla1280_abort_device(struct scsi_qla_host *, int, int, int); 447 static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int); 448 static int qla1280_abort_isp(struct scsi_qla_host *); 449 #ifdef QLA_64BIT_PTR 450 static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *); 451 #else 452 static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *); 453 #endif 454 static void qla1280_nv_write(struct scsi_qla_host *, uint16_t); 455 static void qla1280_poll(struct scsi_qla_host *); 456 static void qla1280_reset_adapter(struct scsi_qla_host *); 457 static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8); 458 static void qla1280_isp_cmd(struct scsi_qla_host *); 459 static void qla1280_isr(struct scsi_qla_host *, struct list_head *); 460 static void qla1280_rst_aen(struct scsi_qla_host *); 461 static void qla1280_status_entry(struct scsi_qla_host *, struct response *, 462 struct list_head *); 463 static void qla1280_error_entry(struct scsi_qla_host *, struct response *, 464 struct list_head *); 465 static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t); 466 static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t); 467 static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *); 468 static request_t *qla1280_req_pkt(struct scsi_qla_host *); 469 static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *, 470 unsigned int); 471 static void qla1280_get_target_parameters(struct scsi_qla_host *, 472 struct scsi_device *); 473 static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int); 474 475 476 static struct qla_driver_setup driver_setup; 477 478 /* 479 * convert scsi data direction to request_t control flags 480 */ 481 static inline uint16_t 482 qla1280_data_direction(struct scsi_cmnd *cmnd) 483 { 484 switch(cmnd->sc_data_direction) { 485 case DMA_FROM_DEVICE: 486 return BIT_5; 487 case DMA_TO_DEVICE: 488 return BIT_6; 489 case DMA_BIDIRECTIONAL: 490 return BIT_5 | BIT_6; 491 /* 492 * We could BUG() on default here if one of the four cases aren't 493 * met, but then again if we receive something like that from the 494 * SCSI layer we have more serious problems. This shuts up GCC. 495 */ 496 case DMA_NONE: 497 default: 498 return 0; 499 } 500 } 501 502 #if DEBUG_QLA1280 503 static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd); 504 static void __qla1280_dump_buffer(char *, int); 505 #endif 506 507 508 /* 509 * insmod needs to find the variable and make it point to something 510 */ 511 #ifdef MODULE 512 static char *qla1280; 513 514 /* insmod qla1280 options=verbose" */ 515 module_param(qla1280, charp, 0); 516 #else 517 __setup("qla1280=", qla1280_setup); 518 #endif 519 520 521 /* 522 * We use the scsi_pointer structure that's included with each scsi_command 523 * to overlay our struct srb over it. qla1280_init() checks that a srb is not 524 * bigger than a scsi_pointer. 525 */ 526 527 #define CMD_SP(Cmnd) &Cmnd->SCp 528 #define CMD_CDBLEN(Cmnd) Cmnd->cmd_len 529 #define CMD_CDBP(Cmnd) Cmnd->cmnd 530 #define CMD_SNSP(Cmnd) Cmnd->sense_buffer 531 #define CMD_SNSLEN(Cmnd) SCSI_SENSE_BUFFERSIZE 532 #define CMD_RESULT(Cmnd) Cmnd->result 533 #define CMD_HANDLE(Cmnd) Cmnd->host_scribble 534 #define CMD_REQUEST(Cmnd) Cmnd->request->cmd 535 536 #define CMD_HOST(Cmnd) Cmnd->device->host 537 #define SCSI_BUS_32(Cmnd) Cmnd->device->channel 538 #define SCSI_TCN_32(Cmnd) Cmnd->device->id 539 #define SCSI_LUN_32(Cmnd) Cmnd->device->lun 540 541 542 /*****************************************/ 543 /* ISP Boards supported by this driver */ 544 /*****************************************/ 545 546 struct qla_boards { 547 unsigned char name[9]; /* Board ID String */ 548 int numPorts; /* Number of SCSI ports */ 549 unsigned short *fwcode; /* pointer to FW array */ 550 unsigned short *fwlen; /* number of words in array */ 551 unsigned short *fwstart; /* start address for F/W */ 552 unsigned char *fwver; /* Ptr to F/W version array */ 553 }; 554 555 /* NOTE: the last argument in each entry is used to index ql1280_board_tbl */ 556 static struct pci_device_id qla1280_pci_tbl[] = { 557 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160, 558 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 559 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020, 560 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, 561 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080, 562 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, 563 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240, 564 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, 565 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280, 566 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, 567 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160, 568 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5}, 569 {0,} 570 }; 571 MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl); 572 573 static struct qla_boards ql1280_board_tbl[] = { 574 /* Name , Number of ports, FW details */ 575 {"QLA12160", 2, &fw12160i_code01[0], &fw12160i_length01, 576 &fw12160i_addr01, &fw12160i_version_str[0]}, 577 {"QLA1040", 1, &risc_code01[0], &risc_code_length01, 578 &risc_code_addr01, &firmware_version[0]}, 579 {"QLA1080", 1, &fw1280ei_code01[0], &fw1280ei_length01, 580 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 581 {"QLA1240", 2, &fw1280ei_code01[0], &fw1280ei_length01, 582 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 583 {"QLA1280", 2, &fw1280ei_code01[0], &fw1280ei_length01, 584 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 585 {"QLA10160", 1, &fw12160i_code01[0], &fw12160i_length01, 586 &fw12160i_addr01, &fw12160i_version_str[0]}, 587 {" ", 0} 588 }; 589 590 static int qla1280_verbose = 1; 591 592 #if DEBUG_QLA1280 593 static int ql_debug_level = 1; 594 #define dprintk(level, format, a...) \ 595 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0) 596 #define qla1280_dump_buffer(level, buf, size) \ 597 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size) 598 #define qla1280_print_scsi_cmd(level, cmd) \ 599 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd) 600 #else 601 #define ql_debug_level 0 602 #define dprintk(level, format, a...) do{}while(0) 603 #define qla1280_dump_buffer(a, b, c) do{}while(0) 604 #define qla1280_print_scsi_cmd(a, b) do{}while(0) 605 #endif 606 607 #define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x); 608 #define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x); 609 #define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x); 610 #define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x); 611 612 613 static int qla1280_read_nvram(struct scsi_qla_host *ha) 614 { 615 uint16_t *wptr; 616 uint8_t chksum; 617 int cnt, i; 618 struct nvram *nv; 619 620 ENTER("qla1280_read_nvram"); 621 622 if (driver_setup.no_nvram) 623 return 1; 624 625 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no); 626 627 wptr = (uint16_t *)&ha->nvram; 628 nv = &ha->nvram; 629 chksum = 0; 630 for (cnt = 0; cnt < 3; cnt++) { 631 *wptr = qla1280_get_nvram_word(ha, cnt); 632 chksum += *wptr & 0xff; 633 chksum += (*wptr >> 8) & 0xff; 634 wptr++; 635 } 636 637 if (nv->id0 != 'I' || nv->id1 != 'S' || 638 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) { 639 dprintk(2, "Invalid nvram ID or version!\n"); 640 chksum = 1; 641 } else { 642 for (; cnt < sizeof(struct nvram); cnt++) { 643 *wptr = qla1280_get_nvram_word(ha, cnt); 644 chksum += *wptr & 0xff; 645 chksum += (*wptr >> 8) & 0xff; 646 wptr++; 647 } 648 } 649 650 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x" 651 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3, 652 nv->version); 653 654 655 if (chksum) { 656 if (!driver_setup.no_nvram) 657 printk(KERN_WARNING "scsi(%ld): Unable to identify or " 658 "validate NVRAM checksum, using default " 659 "settings\n", ha->host_no); 660 ha->nvram_valid = 0; 661 } else 662 ha->nvram_valid = 1; 663 664 /* The firmware interface is, um, interesting, in that the 665 * actual firmware image on the chip is little endian, thus, 666 * the process of taking that image to the CPU would end up 667 * little endian. However, the firmare interface requires it 668 * to be read a word (two bytes) at a time. 669 * 670 * The net result of this would be that the word (and 671 * doubleword) quantites in the firmware would be correct, but 672 * the bytes would be pairwise reversed. Since most of the 673 * firmware quantites are, in fact, bytes, we do an extra 674 * le16_to_cpu() in the firmware read routine. 675 * 676 * The upshot of all this is that the bytes in the firmware 677 * are in the correct places, but the 16 and 32 bit quantites 678 * are still in little endian format. We fix that up below by 679 * doing extra reverses on them */ 680 nv->isp_parameter = cpu_to_le16(nv->isp_parameter); 681 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w); 682 for(i = 0; i < MAX_BUSES; i++) { 683 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout); 684 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth); 685 } 686 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n"); 687 LEAVE("qla1280_read_nvram"); 688 689 return chksum; 690 } 691 692 /************************************************************************** 693 * qla1280_info 694 * Return a string describing the driver. 695 **************************************************************************/ 696 static const char * 697 qla1280_info(struct Scsi_Host *host) 698 { 699 static char qla1280_scsi_name_buffer[125]; 700 char *bp; 701 struct scsi_qla_host *ha; 702 struct qla_boards *bdp; 703 704 bp = &qla1280_scsi_name_buffer[0]; 705 ha = (struct scsi_qla_host *)host->hostdata; 706 bdp = &ql1280_board_tbl[ha->devnum]; 707 memset(bp, 0, sizeof(qla1280_scsi_name_buffer)); 708 709 sprintf (bp, 710 "QLogic %s PCI to SCSI Host Adapter\n" 711 " Firmware version: %2d.%02d.%02d, Driver version %s", 712 &bdp->name[0], bdp->fwver[0], bdp->fwver[1], bdp->fwver[2], 713 QLA1280_VERSION); 714 return bp; 715 } 716 717 /************************************************************************** 718 * qla1200_queuecommand 719 * Queue a command to the controller. 720 * 721 * Note: 722 * The mid-level driver tries to ensures that queuecommand never gets invoked 723 * concurrently with itself or the interrupt handler (although the 724 * interrupt handler may call this routine as part of request-completion 725 * handling). Unfortunely, it sometimes calls the scheduler in interrupt 726 * context which is a big NO! NO!. 727 **************************************************************************/ 728 static int 729 qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)) 730 { 731 struct Scsi_Host *host = cmd->device->host; 732 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; 733 struct srb *sp = (struct srb *)&cmd->SCp; 734 int status; 735 736 cmd->scsi_done = fn; 737 sp->cmd = cmd; 738 sp->flags = 0; 739 740 qla1280_print_scsi_cmd(5, cmd); 741 742 #ifdef QLA_64BIT_PTR 743 /* 744 * Using 64 bit commands if the PCI bridge doesn't support it is a 745 * bit wasteful, however this should really only happen if one's 746 * PCI controller is completely broken, like the BCM1250. For 747 * sane hardware this is not an issue. 748 */ 749 status = qla1280_64bit_start_scsi(ha, sp); 750 #else 751 status = qla1280_32bit_start_scsi(ha, sp); 752 #endif 753 return status; 754 } 755 756 enum action { 757 ABORT_COMMAND, 758 ABORT_DEVICE, 759 DEVICE_RESET, 760 BUS_RESET, 761 ADAPTER_RESET, 762 FAIL 763 }; 764 765 /* timer action for error action processor */ 766 static void qla1280_error_wait_timeout(unsigned long __data) 767 { 768 struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data; 769 struct srb *sp = (struct srb *)CMD_SP(cmd); 770 771 complete(sp->wait); 772 } 773 774 static void qla1280_mailbox_timeout(unsigned long __data) 775 { 776 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data; 777 struct device_reg __iomem *reg; 778 reg = ha->iobase; 779 780 ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0); 781 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, " 782 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0], 783 RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus)); 784 complete(ha->mailbox_wait); 785 } 786 787 /************************************************************************** 788 * qla1200_error_action 789 * The function will attempt to perform a specified error action and 790 * wait for the results (or time out). 791 * 792 * Input: 793 * cmd = Linux SCSI command packet of the command that cause the 794 * bus reset. 795 * action = error action to take (see action_t) 796 * 797 * Returns: 798 * SUCCESS or FAILED 799 * 800 * Note: 801 * Resetting the bus always succeeds - is has to, otherwise the 802 * kernel will panic! Try a surgical technique - sending a BUS 803 * DEVICE RESET message - on the offending target before pulling 804 * the SCSI bus reset line. 805 **************************************************************************/ 806 static int 807 qla1280_error_action(struct scsi_cmnd *cmd, enum action action) 808 { 809 struct scsi_qla_host *ha; 810 int bus, target, lun; 811 struct srb *sp; 812 uint16_t data; 813 unsigned char *handle; 814 int result, i; 815 DECLARE_COMPLETION_ONSTACK(wait); 816 struct timer_list timer; 817 818 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata); 819 820 dprintk(4, "error_action %i, istatus 0x%04x\n", action, 821 RD_REG_WORD(&ha->iobase->istatus)); 822 823 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n", 824 RD_REG_WORD(&ha->iobase->host_cmd), 825 RD_REG_WORD(&ha->iobase->ictrl), jiffies); 826 827 ENTER("qla1280_error_action"); 828 if (qla1280_verbose) 829 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, " 830 "Handle=0x%p, action=0x%x\n", 831 ha->host_no, cmd, CMD_HANDLE(cmd), action); 832 833 if (cmd == NULL) { 834 printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL " 835 "si_Cmnd pointer, failing.\n"); 836 LEAVE("qla1280_error_action"); 837 return FAILED; 838 } 839 840 ha = (struct scsi_qla_host *)cmd->device->host->hostdata; 841 sp = (struct srb *)CMD_SP(cmd); 842 handle = CMD_HANDLE(cmd); 843 844 /* Check for pending interrupts. */ 845 data = qla1280_debounce_register(&ha->iobase->istatus); 846 /* 847 * The io_request_lock is held when the reset handler is called, hence 848 * the interrupt handler cannot be running in parallel as it also 849 * grabs the lock. /Jes 850 */ 851 if (data & RISC_INT) 852 qla1280_isr(ha, &ha->done_q); 853 854 /* 855 * Determine the suggested action that the mid-level driver wants 856 * us to perform. 857 */ 858 if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) { 859 if(action == ABORT_COMMAND) { 860 /* we never got this command */ 861 printk(KERN_INFO "qla1280: Aborting a NULL handle\n"); 862 return SUCCESS; /* no action - we don't have command */ 863 } 864 } else { 865 sp->wait = &wait; 866 } 867 868 bus = SCSI_BUS_32(cmd); 869 target = SCSI_TCN_32(cmd); 870 lun = SCSI_LUN_32(cmd); 871 872 /* Overloading result. Here it means the success or fail of the 873 * *issue* of the action. When we return from the routine, it must 874 * mean the actual success or fail of the action */ 875 result = FAILED; 876 switch (action) { 877 case FAIL: 878 break; 879 880 case ABORT_COMMAND: 881 if ((sp->flags & SRB_ABORT_PENDING)) { 882 printk(KERN_WARNING 883 "scsi(): Command has a pending abort " 884 "message - ABORT_PENDING.\n"); 885 /* This should technically be impossible since we 886 * now wait for abort completion */ 887 break; 888 } 889 890 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { 891 if (sp == ha->outstanding_cmds[i]) { 892 dprintk(1, "qla1280: RISC aborting command\n"); 893 if (qla1280_abort_command(ha, sp, i) == 0) 894 result = SUCCESS; 895 else { 896 /* 897 * Since we don't know what might 898 * have happend to the command, it 899 * is unsafe to remove it from the 900 * device's queue at this point. 901 * Wait and let the escalation 902 * process take care of it. 903 */ 904 printk(KERN_WARNING 905 "scsi(%li:%i:%i:%i): Unable" 906 " to abort command!\n", 907 ha->host_no, bus, target, lun); 908 } 909 } 910 } 911 break; 912 913 case ABORT_DEVICE: 914 if (qla1280_verbose) 915 printk(KERN_INFO 916 "scsi(%ld:%d:%d:%d): Queueing abort device " 917 "command.\n", ha->host_no, bus, target, lun); 918 if (qla1280_abort_device(ha, bus, target, lun) == 0) 919 result = SUCCESS; 920 break; 921 922 case DEVICE_RESET: 923 if (qla1280_verbose) 924 printk(KERN_INFO 925 "scsi(%ld:%d:%d:%d): Queueing device reset " 926 "command.\n", ha->host_no, bus, target, lun); 927 if (qla1280_device_reset(ha, bus, target) == 0) 928 result = SUCCESS; 929 break; 930 931 case BUS_RESET: 932 if (qla1280_verbose) 933 printk(KERN_INFO "qla1280(%ld:%d): Issued bus " 934 "reset.\n", ha->host_no, bus); 935 if (qla1280_bus_reset(ha, bus) == 0) 936 result = SUCCESS; 937 break; 938 939 case ADAPTER_RESET: 940 default: 941 if (qla1280_verbose) { 942 printk(KERN_INFO 943 "scsi(%ld): Issued ADAPTER RESET\n", 944 ha->host_no); 945 printk(KERN_INFO "scsi(%ld): I/O processing will " 946 "continue automatically\n", ha->host_no); 947 } 948 ha->flags.reset_active = 1; 949 /* 950 * We restarted all of the commands automatically, so the 951 * mid-level code can expect completions momentitarily. 952 */ 953 if (qla1280_abort_isp(ha) == 0) 954 result = SUCCESS; 955 956 ha->flags.reset_active = 0; 957 } 958 959 if (!list_empty(&ha->done_q)) 960 qla1280_done(ha); 961 962 /* If we didn't manage to issue the action, or we have no 963 * command to wait for, exit here */ 964 if (result == FAILED || handle == NULL || 965 handle == (unsigned char *)INVALID_HANDLE) { 966 /* 967 * Clear completion queue to avoid qla1280_done() trying 968 * to complete the command at a later stage after we 969 * have exited the current context 970 */ 971 sp->wait = NULL; 972 goto leave; 973 } 974 975 /* set up a timer just in case we're really jammed */ 976 init_timer(&timer); 977 timer.expires = jiffies + 4*HZ; 978 timer.data = (unsigned long)cmd; 979 timer.function = qla1280_error_wait_timeout; 980 add_timer(&timer); 981 982 /* wait for the action to complete (or the timer to expire) */ 983 spin_unlock_irq(ha->host->host_lock); 984 wait_for_completion(&wait); 985 del_timer_sync(&timer); 986 spin_lock_irq(ha->host->host_lock); 987 sp->wait = NULL; 988 989 /* the only action we might get a fail for is abort */ 990 if (action == ABORT_COMMAND) { 991 if(sp->flags & SRB_ABORTED) 992 result = SUCCESS; 993 else 994 result = FAILED; 995 } 996 997 leave: 998 dprintk(1, "RESET returning %d\n", result); 999 1000 LEAVE("qla1280_error_action"); 1001 return result; 1002 } 1003 1004 /************************************************************************** 1005 * qla1280_abort 1006 * Abort the specified SCSI command(s). 1007 **************************************************************************/ 1008 static int 1009 qla1280_eh_abort(struct scsi_cmnd * cmd) 1010 { 1011 int rc; 1012 1013 spin_lock_irq(cmd->device->host->host_lock); 1014 rc = qla1280_error_action(cmd, ABORT_COMMAND); 1015 spin_unlock_irq(cmd->device->host->host_lock); 1016 1017 return rc; 1018 } 1019 1020 /************************************************************************** 1021 * qla1280_device_reset 1022 * Reset the specified SCSI device 1023 **************************************************************************/ 1024 static int 1025 qla1280_eh_device_reset(struct scsi_cmnd *cmd) 1026 { 1027 int rc; 1028 1029 spin_lock_irq(cmd->device->host->host_lock); 1030 rc = qla1280_error_action(cmd, DEVICE_RESET); 1031 spin_unlock_irq(cmd->device->host->host_lock); 1032 1033 return rc; 1034 } 1035 1036 /************************************************************************** 1037 * qla1280_bus_reset 1038 * Reset the specified bus. 1039 **************************************************************************/ 1040 static int 1041 qla1280_eh_bus_reset(struct scsi_cmnd *cmd) 1042 { 1043 int rc; 1044 1045 spin_lock_irq(cmd->device->host->host_lock); 1046 rc = qla1280_error_action(cmd, BUS_RESET); 1047 spin_unlock_irq(cmd->device->host->host_lock); 1048 1049 return rc; 1050 } 1051 1052 /************************************************************************** 1053 * qla1280_adapter_reset 1054 * Reset the specified adapter (both channels) 1055 **************************************************************************/ 1056 static int 1057 qla1280_eh_adapter_reset(struct scsi_cmnd *cmd) 1058 { 1059 int rc; 1060 1061 spin_lock_irq(cmd->device->host->host_lock); 1062 rc = qla1280_error_action(cmd, ADAPTER_RESET); 1063 spin_unlock_irq(cmd->device->host->host_lock); 1064 1065 return rc; 1066 } 1067 1068 static int 1069 qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev, 1070 sector_t capacity, int geom[]) 1071 { 1072 int heads, sectors, cylinders; 1073 1074 heads = 64; 1075 sectors = 32; 1076 cylinders = (unsigned long)capacity / (heads * sectors); 1077 if (cylinders > 1024) { 1078 heads = 255; 1079 sectors = 63; 1080 cylinders = (unsigned long)capacity / (heads * sectors); 1081 /* if (cylinders > 1023) 1082 cylinders = 1023; */ 1083 } 1084 1085 geom[0] = heads; 1086 geom[1] = sectors; 1087 geom[2] = cylinders; 1088 1089 return 0; 1090 } 1091 1092 1093 /* disable risc and host interrupts */ 1094 static inline void 1095 qla1280_disable_intrs(struct scsi_qla_host *ha) 1096 { 1097 WRT_REG_WORD(&ha->iobase->ictrl, 0); 1098 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */ 1099 } 1100 1101 /* enable risc and host interrupts */ 1102 static inline void 1103 qla1280_enable_intrs(struct scsi_qla_host *ha) 1104 { 1105 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC)); 1106 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */ 1107 } 1108 1109 /************************************************************************** 1110 * qla1280_intr_handler 1111 * Handles the H/W interrupt 1112 **************************************************************************/ 1113 static irqreturn_t 1114 qla1280_intr_handler(int irq, void *dev_id) 1115 { 1116 struct scsi_qla_host *ha; 1117 struct device_reg __iomem *reg; 1118 u16 data; 1119 int handled = 0; 1120 1121 ENTER_INTR ("qla1280_intr_handler"); 1122 ha = (struct scsi_qla_host *)dev_id; 1123 1124 spin_lock(ha->host->host_lock); 1125 1126 ha->isr_count++; 1127 reg = ha->iobase; 1128 1129 qla1280_disable_intrs(ha); 1130 1131 data = qla1280_debounce_register(®->istatus); 1132 /* Check for pending interrupts. */ 1133 if (data & RISC_INT) { 1134 qla1280_isr(ha, &ha->done_q); 1135 handled = 1; 1136 } 1137 if (!list_empty(&ha->done_q)) 1138 qla1280_done(ha); 1139 1140 spin_unlock(ha->host->host_lock); 1141 1142 qla1280_enable_intrs(ha); 1143 1144 LEAVE_INTR("qla1280_intr_handler"); 1145 return IRQ_RETVAL(handled); 1146 } 1147 1148 1149 static int 1150 qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target) 1151 { 1152 uint8_t mr; 1153 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1154 struct nvram *nv; 1155 int status, lun; 1156 1157 nv = &ha->nvram; 1158 1159 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0; 1160 1161 /* Set Target Parameters. */ 1162 mb[0] = MBC_SET_TARGET_PARAMETERS; 1163 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 1164 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8; 1165 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9; 1166 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10; 1167 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11; 1168 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12; 1169 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13; 1170 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14; 1171 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15; 1172 1173 if (IS_ISP1x160(ha)) { 1174 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5; 1175 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8); 1176 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) | 1177 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width; 1178 mr |= BIT_6; 1179 } else { 1180 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8); 1181 } 1182 mb[3] |= nv->bus[bus].target[target].sync_period; 1183 1184 status = qla1280_mailbox_command(ha, mr, mb); 1185 1186 /* Set Device Queue Parameters. */ 1187 for (lun = 0; lun < MAX_LUNS; lun++) { 1188 mb[0] = MBC_SET_DEVICE_QUEUE; 1189 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 1190 mb[1] |= lun; 1191 mb[2] = nv->bus[bus].max_queue_depth; 1192 mb[3] = nv->bus[bus].target[target].execution_throttle; 1193 status |= qla1280_mailbox_command(ha, 0x0f, mb); 1194 } 1195 1196 if (status) 1197 printk(KERN_WARNING "scsi(%ld:%i:%i): " 1198 "qla1280_set_target_parameters() failed\n", 1199 ha->host_no, bus, target); 1200 return status; 1201 } 1202 1203 1204 /************************************************************************** 1205 * qla1280_slave_configure 1206 * 1207 * Description: 1208 * Determines the queue depth for a given device. There are two ways 1209 * a queue depth can be obtained for a tagged queueing device. One 1210 * way is the default queue depth which is determined by whether 1211 * If it is defined, then it is used 1212 * as the default queue depth. Otherwise, we use either 4 or 8 as the 1213 * default queue depth (dependent on the number of hardware SCBs). 1214 **************************************************************************/ 1215 static int 1216 qla1280_slave_configure(struct scsi_device *device) 1217 { 1218 struct scsi_qla_host *ha; 1219 int default_depth = 3; 1220 int bus = device->channel; 1221 int target = device->id; 1222 int status = 0; 1223 struct nvram *nv; 1224 unsigned long flags; 1225 1226 ha = (struct scsi_qla_host *)device->host->hostdata; 1227 nv = &ha->nvram; 1228 1229 if (qla1280_check_for_dead_scsi_bus(ha, bus)) 1230 return 1; 1231 1232 if (device->tagged_supported && 1233 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { 1234 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG, 1235 ha->bus_settings[bus].hiwat); 1236 } else { 1237 scsi_adjust_queue_depth(device, 0, default_depth); 1238 } 1239 1240 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr; 1241 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr; 1242 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr; 1243 1244 if (driver_setup.no_sync || 1245 (driver_setup.sync_mask && 1246 (~driver_setup.sync_mask & (1 << target)))) 1247 nv->bus[bus].target[target].parameter.enable_sync = 0; 1248 if (driver_setup.no_wide || 1249 (driver_setup.wide_mask && 1250 (~driver_setup.wide_mask & (1 << target)))) 1251 nv->bus[bus].target[target].parameter.enable_wide = 0; 1252 if (IS_ISP1x160(ha)) { 1253 if (driver_setup.no_ppr || 1254 (driver_setup.ppr_mask && 1255 (~driver_setup.ppr_mask & (1 << target)))) 1256 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0; 1257 } 1258 1259 spin_lock_irqsave(ha->host->host_lock, flags); 1260 if (nv->bus[bus].target[target].parameter.enable_sync) 1261 status = qla1280_set_target_parameters(ha, bus, target); 1262 qla1280_get_target_parameters(ha, device); 1263 spin_unlock_irqrestore(ha->host->host_lock, flags); 1264 return status; 1265 } 1266 1267 1268 /* 1269 * qla1280_done 1270 * Process completed commands. 1271 * 1272 * Input: 1273 * ha = adapter block pointer. 1274 */ 1275 static void 1276 qla1280_done(struct scsi_qla_host *ha) 1277 { 1278 struct srb *sp; 1279 struct list_head *done_q; 1280 int bus, target, lun; 1281 struct scsi_cmnd *cmd; 1282 1283 ENTER("qla1280_done"); 1284 1285 done_q = &ha->done_q; 1286 1287 while (!list_empty(done_q)) { 1288 sp = list_entry(done_q->next, struct srb, list); 1289 1290 list_del(&sp->list); 1291 1292 cmd = sp->cmd; 1293 bus = SCSI_BUS_32(cmd); 1294 target = SCSI_TCN_32(cmd); 1295 lun = SCSI_LUN_32(cmd); 1296 1297 switch ((CMD_RESULT(cmd) >> 16)) { 1298 case DID_RESET: 1299 /* Issue marker command. */ 1300 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); 1301 break; 1302 case DID_ABORT: 1303 sp->flags &= ~SRB_ABORT_PENDING; 1304 sp->flags |= SRB_ABORTED; 1305 if (sp->flags & SRB_TIMEOUT) 1306 CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16; 1307 break; 1308 default: 1309 break; 1310 } 1311 1312 /* Release memory used for this I/O */ 1313 scsi_dma_unmap(cmd); 1314 1315 /* Call the mid-level driver interrupt handler */ 1316 CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE; 1317 ha->actthreads--; 1318 1319 (*(cmd)->scsi_done)(cmd); 1320 1321 if(sp->wait != NULL) 1322 complete(sp->wait); 1323 } 1324 LEAVE("qla1280_done"); 1325 } 1326 1327 /* 1328 * Translates a ISP error to a Linux SCSI error 1329 */ 1330 static int 1331 qla1280_return_status(struct response * sts, struct scsi_cmnd *cp) 1332 { 1333 int host_status = DID_ERROR; 1334 uint16_t comp_status = le16_to_cpu(sts->comp_status); 1335 uint16_t state_flags = le16_to_cpu(sts->state_flags); 1336 uint32_t residual_length = le32_to_cpu(sts->residual_length); 1337 uint16_t scsi_status = le16_to_cpu(sts->scsi_status); 1338 #if DEBUG_QLA1280_INTR 1339 static char *reason[] = { 1340 "DID_OK", 1341 "DID_NO_CONNECT", 1342 "DID_BUS_BUSY", 1343 "DID_TIME_OUT", 1344 "DID_BAD_TARGET", 1345 "DID_ABORT", 1346 "DID_PARITY", 1347 "DID_ERROR", 1348 "DID_RESET", 1349 "DID_BAD_INTR" 1350 }; 1351 #endif /* DEBUG_QLA1280_INTR */ 1352 1353 ENTER("qla1280_return_status"); 1354 1355 #if DEBUG_QLA1280_INTR 1356 /* 1357 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n", 1358 comp_status); 1359 */ 1360 #endif 1361 1362 switch (comp_status) { 1363 case CS_COMPLETE: 1364 host_status = DID_OK; 1365 break; 1366 1367 case CS_INCOMPLETE: 1368 if (!(state_flags & SF_GOT_BUS)) 1369 host_status = DID_NO_CONNECT; 1370 else if (!(state_flags & SF_GOT_TARGET)) 1371 host_status = DID_BAD_TARGET; 1372 else if (!(state_flags & SF_SENT_CDB)) 1373 host_status = DID_ERROR; 1374 else if (!(state_flags & SF_TRANSFERRED_DATA)) 1375 host_status = DID_ERROR; 1376 else if (!(state_flags & SF_GOT_STATUS)) 1377 host_status = DID_ERROR; 1378 else if (!(state_flags & SF_GOT_SENSE)) 1379 host_status = DID_ERROR; 1380 break; 1381 1382 case CS_RESET: 1383 host_status = DID_RESET; 1384 break; 1385 1386 case CS_ABORTED: 1387 host_status = DID_ABORT; 1388 break; 1389 1390 case CS_TIMEOUT: 1391 host_status = DID_TIME_OUT; 1392 break; 1393 1394 case CS_DATA_OVERRUN: 1395 dprintk(2, "Data overrun 0x%x\n", residual_length); 1396 dprintk(2, "qla1280_return_status: response packet data\n"); 1397 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE); 1398 host_status = DID_ERROR; 1399 break; 1400 1401 case CS_DATA_UNDERRUN: 1402 if ((scsi_bufflen(cp) - residual_length) < 1403 cp->underflow) { 1404 printk(KERN_WARNING 1405 "scsi: Underflow detected - retrying " 1406 "command.\n"); 1407 host_status = DID_ERROR; 1408 } else { 1409 scsi_set_resid(cp, residual_length); 1410 host_status = DID_OK; 1411 } 1412 break; 1413 1414 default: 1415 host_status = DID_ERROR; 1416 break; 1417 } 1418 1419 #if DEBUG_QLA1280_INTR 1420 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n", 1421 reason[host_status], scsi_status); 1422 #endif 1423 1424 LEAVE("qla1280_return_status"); 1425 1426 return (scsi_status & 0xff) | (host_status << 16); 1427 } 1428 1429 /****************************************************************************/ 1430 /* QLogic ISP1280 Hardware Support Functions. */ 1431 /****************************************************************************/ 1432 1433 /* 1434 * qla1280_initialize_adapter 1435 * Initialize board. 1436 * 1437 * Input: 1438 * ha = adapter block pointer. 1439 * 1440 * Returns: 1441 * 0 = success 1442 */ 1443 static int __devinit 1444 qla1280_initialize_adapter(struct scsi_qla_host *ha) 1445 { 1446 struct device_reg __iomem *reg; 1447 int status; 1448 int bus; 1449 unsigned long flags; 1450 1451 ENTER("qla1280_initialize_adapter"); 1452 1453 /* Clear adapter flags. */ 1454 ha->flags.online = 0; 1455 ha->flags.disable_host_adapter = 0; 1456 ha->flags.reset_active = 0; 1457 ha->flags.abort_isp_active = 0; 1458 1459 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 1460 if (ia64_platform_is("sn2")) { 1461 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA " 1462 "dual channel lockup workaround\n", ha->host_no); 1463 ha->flags.use_pci_vchannel = 1; 1464 driver_setup.no_nvram = 1; 1465 } 1466 #endif 1467 1468 /* TODO: implement support for the 1040 nvram format */ 1469 if (IS_ISP1040(ha)) 1470 driver_setup.no_nvram = 1; 1471 1472 dprintk(1, "Configure PCI space for adapter...\n"); 1473 1474 reg = ha->iobase; 1475 1476 /* Insure mailbox registers are free. */ 1477 WRT_REG_WORD(®->semaphore, 0); 1478 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); 1479 WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT); 1480 RD_REG_WORD(®->host_cmd); 1481 1482 if (qla1280_read_nvram(ha)) { 1483 dprintk(2, "qla1280_initialize_adapter: failed to read " 1484 "NVRAM\n"); 1485 } 1486 1487 /* 1488 * It's necessary to grab the spin here as qla1280_mailbox_command 1489 * needs to be able to drop the lock unconditionally to wait 1490 * for completion. 1491 */ 1492 spin_lock_irqsave(ha->host->host_lock, flags); 1493 1494 status = qla1280_load_firmware(ha); 1495 if (status) { 1496 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n", 1497 ha->host_no); 1498 goto out; 1499 } 1500 1501 /* Setup adapter based on NVRAM parameters. */ 1502 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no); 1503 qla1280_nvram_config(ha); 1504 1505 if (ha->flags.disable_host_adapter) { 1506 status = 1; 1507 goto out; 1508 } 1509 1510 status = qla1280_init_rings(ha); 1511 if (status) 1512 goto out; 1513 1514 /* Issue SCSI reset, if we can't reset twice then bus is dead */ 1515 for (bus = 0; bus < ha->ports; bus++) { 1516 if (!ha->bus_settings[bus].disable_scsi_reset && 1517 qla1280_bus_reset(ha, bus) && 1518 qla1280_bus_reset(ha, bus)) 1519 ha->bus_settings[bus].scsi_bus_dead = 1; 1520 } 1521 1522 ha->flags.online = 1; 1523 out: 1524 spin_unlock_irqrestore(ha->host->host_lock, flags); 1525 1526 if (status) 1527 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n"); 1528 1529 LEAVE("qla1280_initialize_adapter"); 1530 return status; 1531 } 1532 1533 /* 1534 * Chip diagnostics 1535 * Test chip for proper operation. 1536 * 1537 * Input: 1538 * ha = adapter block pointer. 1539 * 1540 * Returns: 1541 * 0 = success. 1542 */ 1543 static int 1544 qla1280_chip_diag(struct scsi_qla_host *ha) 1545 { 1546 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1547 struct device_reg __iomem *reg = ha->iobase; 1548 int status = 0; 1549 int cnt; 1550 uint16_t data; 1551 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l); 1552 1553 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no); 1554 1555 /* Soft reset chip and wait for it to finish. */ 1556 WRT_REG_WORD(®->ictrl, ISP_RESET); 1557 1558 /* 1559 * We can't do a traditional PCI write flush here by reading 1560 * back the register. The card will not respond once the reset 1561 * is in action and we end up with a machine check exception 1562 * instead. Nothing to do but wait and hope for the best. 1563 * A portable pci_write_flush(pdev) call would be very useful here. 1564 */ 1565 udelay(20); 1566 data = qla1280_debounce_register(®->ictrl); 1567 /* 1568 * Yet another QLogic gem ;-( 1569 */ 1570 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) { 1571 udelay(5); 1572 data = RD_REG_WORD(®->ictrl); 1573 } 1574 1575 if (!cnt) 1576 goto fail; 1577 1578 /* Reset register cleared by chip reset. */ 1579 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n"); 1580 1581 WRT_REG_WORD(®->cfg_1, 0); 1582 1583 /* Reset RISC and disable BIOS which 1584 allows RISC to execute out of RAM. */ 1585 WRT_REG_WORD(®->host_cmd, HC_RESET_RISC | 1586 HC_RELEASE_RISC | HC_DISABLE_BIOS); 1587 1588 RD_REG_WORD(®->id_l); /* Flush PCI write */ 1589 data = qla1280_debounce_register(®->mailbox0); 1590 1591 /* 1592 * I *LOVE* this code! 1593 */ 1594 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) { 1595 udelay(5); 1596 data = RD_REG_WORD(®->mailbox0); 1597 } 1598 1599 if (!cnt) 1600 goto fail; 1601 1602 /* Check product ID of chip */ 1603 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n"); 1604 1605 if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 || 1606 (RD_REG_WORD(®->mailbox2) != PROD_ID_2 && 1607 RD_REG_WORD(®->mailbox2) != PROD_ID_2a) || 1608 RD_REG_WORD(®->mailbox3) != PROD_ID_3 || 1609 RD_REG_WORD(®->mailbox4) != PROD_ID_4) { 1610 printk(KERN_INFO "qla1280: Wrong product ID = " 1611 "0x%x,0x%x,0x%x,0x%x\n", 1612 RD_REG_WORD(®->mailbox1), 1613 RD_REG_WORD(®->mailbox2), 1614 RD_REG_WORD(®->mailbox3), 1615 RD_REG_WORD(®->mailbox4)); 1616 goto fail; 1617 } 1618 1619 /* 1620 * Enable ints early!!! 1621 */ 1622 qla1280_enable_intrs(ha); 1623 1624 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n"); 1625 /* Wrap Incoming Mailboxes Test. */ 1626 mb[0] = MBC_MAILBOX_REGISTER_TEST; 1627 mb[1] = 0xAAAA; 1628 mb[2] = 0x5555; 1629 mb[3] = 0xAA55; 1630 mb[4] = 0x55AA; 1631 mb[5] = 0xA5A5; 1632 mb[6] = 0x5A5A; 1633 mb[7] = 0x2525; 1634 1635 status = qla1280_mailbox_command(ha, 0xff, mb); 1636 if (status) 1637 goto fail; 1638 1639 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 || 1640 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A || 1641 mb[7] != 0x2525) { 1642 printk(KERN_INFO "qla1280: Failed mbox check\n"); 1643 goto fail; 1644 } 1645 1646 dprintk(3, "qla1280_chip_diag: exiting normally\n"); 1647 return 0; 1648 fail: 1649 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n"); 1650 return status; 1651 } 1652 1653 static int 1654 qla1280_load_firmware_pio(struct scsi_qla_host *ha) 1655 { 1656 uint16_t risc_address, *risc_code_address, risc_code_size; 1657 uint16_t mb[MAILBOX_REGISTER_COUNT], i; 1658 int err; 1659 1660 /* Load RISC code. */ 1661 risc_address = *ql1280_board_tbl[ha->devnum].fwstart; 1662 risc_code_address = ql1280_board_tbl[ha->devnum].fwcode; 1663 risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen; 1664 1665 for (i = 0; i < risc_code_size; i++) { 1666 mb[0] = MBC_WRITE_RAM_WORD; 1667 mb[1] = risc_address + i; 1668 mb[2] = risc_code_address[i]; 1669 1670 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb); 1671 if (err) { 1672 printk(KERN_ERR "scsi(%li): Failed to load firmware\n", 1673 ha->host_no); 1674 return err; 1675 } 1676 } 1677 1678 return 0; 1679 } 1680 1681 #define DUMP_IT_BACK 0 /* for debug of RISC loading */ 1682 static int 1683 qla1280_load_firmware_dma(struct scsi_qla_host *ha) 1684 { 1685 uint16_t risc_address, *risc_code_address, risc_code_size; 1686 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt; 1687 int err = 0, num, i; 1688 #if DUMP_IT_BACK 1689 uint8_t *sp, *tbuf; 1690 dma_addr_t p_tbuf; 1691 1692 tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf); 1693 if (!tbuf) 1694 return -ENOMEM; 1695 #endif 1696 1697 /* Load RISC code. */ 1698 risc_address = *ql1280_board_tbl[ha->devnum].fwstart; 1699 risc_code_address = ql1280_board_tbl[ha->devnum].fwcode; 1700 risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen; 1701 1702 dprintk(1, "%s: DMA RISC code (%i) words\n", 1703 __FUNCTION__, risc_code_size); 1704 1705 num = 0; 1706 while (risc_code_size > 0) { 1707 int warn __attribute__((unused)) = 0; 1708 1709 cnt = 2000 >> 1; 1710 1711 if (cnt > risc_code_size) 1712 cnt = risc_code_size; 1713 1714 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p)," 1715 "%d,%d(0x%x)\n", 1716 risc_code_address, cnt, num, risc_address); 1717 for(i = 0; i < cnt; i++) 1718 ((__le16 *)ha->request_ring)[i] = 1719 cpu_to_le16(risc_code_address[i]); 1720 1721 mb[0] = MBC_LOAD_RAM; 1722 mb[1] = risc_address; 1723 mb[4] = cnt; 1724 mb[3] = ha->request_dma & 0xffff; 1725 mb[2] = (ha->request_dma >> 16) & 0xffff; 1726 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; 1727 mb[6] = pci_dma_hi32(ha->request_dma) >> 16; 1728 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n", 1729 __FUNCTION__, mb[0], 1730 (void *)(long)ha->request_dma, 1731 mb[6], mb[7], mb[2], mb[3]); 1732 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | 1733 BIT_1 | BIT_0, mb); 1734 if (err) { 1735 printk(KERN_ERR "scsi(%li): Failed to load partial " 1736 "segment of f\n", ha->host_no); 1737 goto out; 1738 } 1739 1740 #if DUMP_IT_BACK 1741 mb[0] = MBC_DUMP_RAM; 1742 mb[1] = risc_address; 1743 mb[4] = cnt; 1744 mb[3] = p_tbuf & 0xffff; 1745 mb[2] = (p_tbuf >> 16) & 0xffff; 1746 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff; 1747 mb[6] = pci_dma_hi32(p_tbuf) >> 16; 1748 1749 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | 1750 BIT_1 | BIT_0, mb); 1751 if (err) { 1752 printk(KERN_ERR 1753 "Failed to dump partial segment of f/w\n"); 1754 goto out; 1755 } 1756 sp = (uint8_t *)ha->request_ring; 1757 for (i = 0; i < (cnt << 1); i++) { 1758 if (tbuf[i] != sp[i] && warn++ < 10) { 1759 printk(KERN_ERR "%s: FW compare error @ " 1760 "byte(0x%x) loop#=%x\n", 1761 __FUNCTION__, i, num); 1762 printk(KERN_ERR "%s: FWbyte=%x " 1763 "FWfromChip=%x\n", 1764 __FUNCTION__, sp[i], tbuf[i]); 1765 /*break; */ 1766 } 1767 } 1768 #endif 1769 risc_address += cnt; 1770 risc_code_size = risc_code_size - cnt; 1771 risc_code_address = risc_code_address + cnt; 1772 num++; 1773 } 1774 1775 out: 1776 #if DUMP_IT_BACK 1777 pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf); 1778 #endif 1779 return err; 1780 } 1781 1782 static int 1783 qla1280_start_firmware(struct scsi_qla_host *ha) 1784 { 1785 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1786 int err; 1787 1788 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n", 1789 __FUNCTION__); 1790 1791 /* Verify checksum of loaded RISC code. */ 1792 mb[0] = MBC_VERIFY_CHECKSUM; 1793 /* mb[1] = ql12_risc_code_addr01; */ 1794 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; 1795 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 1796 if (err) { 1797 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no); 1798 return err; 1799 } 1800 1801 /* Start firmware execution. */ 1802 dprintk(1, "%s: start firmware running.\n", __FUNCTION__); 1803 mb[0] = MBC_EXECUTE_FIRMWARE; 1804 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; 1805 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); 1806 if (err) { 1807 printk(KERN_ERR "scsi(%li): Failed to start firmware\n", 1808 ha->host_no); 1809 } 1810 1811 return err; 1812 } 1813 1814 static int 1815 qla1280_load_firmware(struct scsi_qla_host *ha) 1816 { 1817 int err; 1818 1819 err = qla1280_chip_diag(ha); 1820 if (err) 1821 goto out; 1822 if (IS_ISP1040(ha)) 1823 err = qla1280_load_firmware_pio(ha); 1824 else 1825 err = qla1280_load_firmware_dma(ha); 1826 if (err) 1827 goto out; 1828 err = qla1280_start_firmware(ha); 1829 out: 1830 return err; 1831 } 1832 1833 /* 1834 * Initialize rings 1835 * 1836 * Input: 1837 * ha = adapter block pointer. 1838 * ha->request_ring = request ring virtual address 1839 * ha->response_ring = response ring virtual address 1840 * ha->request_dma = request ring physical address 1841 * ha->response_dma = response ring physical address 1842 * 1843 * Returns: 1844 * 0 = success. 1845 */ 1846 static int 1847 qla1280_init_rings(struct scsi_qla_host *ha) 1848 { 1849 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1850 int status = 0; 1851 1852 ENTER("qla1280_init_rings"); 1853 1854 /* Clear outstanding commands array. */ 1855 memset(ha->outstanding_cmds, 0, 1856 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS); 1857 1858 /* Initialize request queue. */ 1859 ha->request_ring_ptr = ha->request_ring; 1860 ha->req_ring_index = 0; 1861 ha->req_q_cnt = REQUEST_ENTRY_CNT; 1862 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */ 1863 mb[0] = MBC_INIT_REQUEST_QUEUE_A64; 1864 mb[1] = REQUEST_ENTRY_CNT; 1865 mb[3] = ha->request_dma & 0xffff; 1866 mb[2] = (ha->request_dma >> 16) & 0xffff; 1867 mb[4] = 0; 1868 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; 1869 mb[6] = pci_dma_hi32(ha->request_dma) >> 16; 1870 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 | 1871 BIT_3 | BIT_2 | BIT_1 | BIT_0, 1872 &mb[0]))) { 1873 /* Initialize response queue. */ 1874 ha->response_ring_ptr = ha->response_ring; 1875 ha->rsp_ring_index = 0; 1876 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */ 1877 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64; 1878 mb[1] = RESPONSE_ENTRY_CNT; 1879 mb[3] = ha->response_dma & 0xffff; 1880 mb[2] = (ha->response_dma >> 16) & 0xffff; 1881 mb[5] = 0; 1882 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff; 1883 mb[6] = pci_dma_hi32(ha->response_dma) >> 16; 1884 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 | 1885 BIT_3 | BIT_2 | BIT_1 | BIT_0, 1886 &mb[0]); 1887 } 1888 1889 if (status) 1890 dprintk(2, "qla1280_init_rings: **** FAILED ****\n"); 1891 1892 LEAVE("qla1280_init_rings"); 1893 return status; 1894 } 1895 1896 static void 1897 qla1280_print_settings(struct nvram *nv) 1898 { 1899 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n", 1900 nv->bus[0].config_1.initiator_id); 1901 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n", 1902 nv->bus[1].config_1.initiator_id); 1903 1904 dprintk(1, "qla1280 : bus reset delay[0]=%d\n", 1905 nv->bus[0].bus_reset_delay); 1906 dprintk(1, "qla1280 : bus reset delay[1]=%d\n", 1907 nv->bus[1].bus_reset_delay); 1908 1909 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count); 1910 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay); 1911 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count); 1912 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay); 1913 1914 dprintk(1, "qla1280 : async data setup time[0]=%d\n", 1915 nv->bus[0].config_2.async_data_setup_time); 1916 dprintk(1, "qla1280 : async data setup time[1]=%d\n", 1917 nv->bus[1].config_2.async_data_setup_time); 1918 1919 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n", 1920 nv->bus[0].config_2.req_ack_active_negation); 1921 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n", 1922 nv->bus[1].config_2.req_ack_active_negation); 1923 1924 dprintk(1, "qla1280 : data line active negation[0]=%d\n", 1925 nv->bus[0].config_2.data_line_active_negation); 1926 dprintk(1, "qla1280 : data line active negation[1]=%d\n", 1927 nv->bus[1].config_2.data_line_active_negation); 1928 1929 dprintk(1, "qla1280 : disable loading risc code=%d\n", 1930 nv->cntr_flags_1.disable_loading_risc_code); 1931 1932 dprintk(1, "qla1280 : enable 64bit addressing=%d\n", 1933 nv->cntr_flags_1.enable_64bit_addressing); 1934 1935 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n", 1936 nv->bus[0].selection_timeout); 1937 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n", 1938 nv->bus[1].selection_timeout); 1939 1940 dprintk(1, "qla1280 : max queue depth[0]=%d\n", 1941 nv->bus[0].max_queue_depth); 1942 dprintk(1, "qla1280 : max queue depth[1]=%d\n", 1943 nv->bus[1].max_queue_depth); 1944 } 1945 1946 static void 1947 qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target) 1948 { 1949 struct nvram *nv = &ha->nvram; 1950 1951 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1; 1952 nv->bus[bus].target[target].parameter.auto_request_sense = 1; 1953 nv->bus[bus].target[target].parameter.tag_queuing = 1; 1954 nv->bus[bus].target[target].parameter.enable_sync = 1; 1955 #if 1 /* Some SCSI Processors do not seem to like this */ 1956 nv->bus[bus].target[target].parameter.enable_wide = 1; 1957 #endif 1958 nv->bus[bus].target[target].execution_throttle = 1959 nv->bus[bus].max_queue_depth - 1; 1960 nv->bus[bus].target[target].parameter.parity_checking = 1; 1961 nv->bus[bus].target[target].parameter.disconnect_allowed = 1; 1962 1963 if (IS_ISP1x160(ha)) { 1964 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1; 1965 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e; 1966 nv->bus[bus].target[target].sync_period = 9; 1967 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1; 1968 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2; 1969 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1; 1970 } else { 1971 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1; 1972 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12; 1973 nv->bus[bus].target[target].sync_period = 10; 1974 } 1975 } 1976 1977 static void 1978 qla1280_set_defaults(struct scsi_qla_host *ha) 1979 { 1980 struct nvram *nv = &ha->nvram; 1981 int bus, target; 1982 1983 dprintk(1, "Using defaults for NVRAM: \n"); 1984 memset(nv, 0, sizeof(struct nvram)); 1985 1986 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */ 1987 nv->firmware_feature.f.enable_fast_posting = 1; 1988 nv->firmware_feature.f.disable_synchronous_backoff = 1; 1989 nv->termination.scsi_bus_0_control = 3; 1990 nv->termination.scsi_bus_1_control = 3; 1991 nv->termination.auto_term_support = 1; 1992 1993 /* 1994 * Set default FIFO magic - What appropriate values would be here 1995 * is unknown. This is what I have found testing with 12160s. 1996 * 1997 * Now, I would love the magic decoder ring for this one, the 1998 * header file provided by QLogic seems to be bogus or incomplete 1999 * at best. 2000 */ 2001 nv->isp_config.burst_enable = 1; 2002 if (IS_ISP1040(ha)) 2003 nv->isp_config.fifo_threshold |= 3; 2004 else 2005 nv->isp_config.fifo_threshold |= 4; 2006 2007 if (IS_ISP1x160(ha)) 2008 nv->isp_parameter = 0x01; /* fast memory enable */ 2009 2010 for (bus = 0; bus < MAX_BUSES; bus++) { 2011 nv->bus[bus].config_1.initiator_id = 7; 2012 nv->bus[bus].config_2.req_ack_active_negation = 1; 2013 nv->bus[bus].config_2.data_line_active_negation = 1; 2014 nv->bus[bus].selection_timeout = 250; 2015 nv->bus[bus].max_queue_depth = 256; 2016 2017 if (IS_ISP1040(ha)) { 2018 nv->bus[bus].bus_reset_delay = 3; 2019 nv->bus[bus].config_2.async_data_setup_time = 6; 2020 nv->bus[bus].retry_delay = 1; 2021 } else { 2022 nv->bus[bus].bus_reset_delay = 5; 2023 nv->bus[bus].config_2.async_data_setup_time = 8; 2024 } 2025 2026 for (target = 0; target < MAX_TARGETS; target++) 2027 qla1280_set_target_defaults(ha, bus, target); 2028 } 2029 } 2030 2031 static int 2032 qla1280_config_target(struct scsi_qla_host *ha, int bus, int target) 2033 { 2034 struct nvram *nv = &ha->nvram; 2035 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2036 int status, lun; 2037 uint16_t flag; 2038 2039 /* Set Target Parameters. */ 2040 mb[0] = MBC_SET_TARGET_PARAMETERS; 2041 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 2042 2043 /* 2044 * Do not enable sync and ppr for the initial INQUIRY run. We 2045 * enable this later if we determine the target actually 2046 * supports it. 2047 */ 2048 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE 2049 | TP_WIDE | TP_PARITY | TP_DISCONNECT); 2050 2051 if (IS_ISP1x160(ha)) 2052 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8; 2053 else 2054 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8; 2055 mb[3] |= nv->bus[bus].target[target].sync_period; 2056 status = qla1280_mailbox_command(ha, 0x0f, mb); 2057 2058 /* Save Tag queuing enable flag. */ 2059 flag = (BIT_0 << target) & mb[0]; 2060 if (nv->bus[bus].target[target].parameter.tag_queuing) 2061 ha->bus_settings[bus].qtag_enables |= flag; 2062 2063 /* Save Device enable flag. */ 2064 if (IS_ISP1x160(ha)) { 2065 if (nv->bus[bus].target[target].flags.flags1x160.device_enable) 2066 ha->bus_settings[bus].device_enables |= flag; 2067 ha->bus_settings[bus].lun_disables |= 0; 2068 } else { 2069 if (nv->bus[bus].target[target].flags.flags1x80.device_enable) 2070 ha->bus_settings[bus].device_enables |= flag; 2071 /* Save LUN disable flag. */ 2072 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable) 2073 ha->bus_settings[bus].lun_disables |= flag; 2074 } 2075 2076 /* Set Device Queue Parameters. */ 2077 for (lun = 0; lun < MAX_LUNS; lun++) { 2078 mb[0] = MBC_SET_DEVICE_QUEUE; 2079 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 2080 mb[1] |= lun; 2081 mb[2] = nv->bus[bus].max_queue_depth; 2082 mb[3] = nv->bus[bus].target[target].execution_throttle; 2083 status |= qla1280_mailbox_command(ha, 0x0f, mb); 2084 } 2085 2086 return status; 2087 } 2088 2089 static int 2090 qla1280_config_bus(struct scsi_qla_host *ha, int bus) 2091 { 2092 struct nvram *nv = &ha->nvram; 2093 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2094 int target, status; 2095 2096 /* SCSI Reset Disable. */ 2097 ha->bus_settings[bus].disable_scsi_reset = 2098 nv->bus[bus].config_1.scsi_reset_disable; 2099 2100 /* Initiator ID. */ 2101 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id; 2102 mb[0] = MBC_SET_INITIATOR_ID; 2103 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 : 2104 ha->bus_settings[bus].id; 2105 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); 2106 2107 /* Reset Delay. */ 2108 ha->bus_settings[bus].bus_reset_delay = 2109 nv->bus[bus].bus_reset_delay; 2110 2111 /* Command queue depth per device. */ 2112 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1; 2113 2114 /* Set target parameters. */ 2115 for (target = 0; target < MAX_TARGETS; target++) 2116 status |= qla1280_config_target(ha, bus, target); 2117 2118 return status; 2119 } 2120 2121 static int 2122 qla1280_nvram_config(struct scsi_qla_host *ha) 2123 { 2124 struct device_reg __iomem *reg = ha->iobase; 2125 struct nvram *nv = &ha->nvram; 2126 int bus, target, status = 0; 2127 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2128 2129 ENTER("qla1280_nvram_config"); 2130 2131 if (ha->nvram_valid) { 2132 /* Always force AUTO sense for LINUX SCSI */ 2133 for (bus = 0; bus < MAX_BUSES; bus++) 2134 for (target = 0; target < MAX_TARGETS; target++) { 2135 nv->bus[bus].target[target].parameter. 2136 auto_request_sense = 1; 2137 } 2138 } else { 2139 qla1280_set_defaults(ha); 2140 } 2141 2142 qla1280_print_settings(nv); 2143 2144 /* Disable RISC load of firmware. */ 2145 ha->flags.disable_risc_code_load = 2146 nv->cntr_flags_1.disable_loading_risc_code; 2147 2148 if (IS_ISP1040(ha)) { 2149 uint16_t hwrev, cfg1, cdma_conf, ddma_conf; 2150 2151 hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK; 2152 2153 cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6); 2154 cdma_conf = RD_REG_WORD(®->cdma_cfg); 2155 ddma_conf = RD_REG_WORD(®->ddma_cfg); 2156 2157 /* Busted fifo, says mjacob. */ 2158 if (hwrev != ISP_CFG0_1040A) 2159 cfg1 |= nv->isp_config.fifo_threshold << 4; 2160 2161 cfg1 |= nv->isp_config.burst_enable << 2; 2162 WRT_REG_WORD(®->cfg_1, cfg1); 2163 2164 WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB); 2165 WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB); 2166 } else { 2167 uint16_t cfg1, term; 2168 2169 /* Set ISP hardware DMA burst */ 2170 cfg1 = nv->isp_config.fifo_threshold << 4; 2171 cfg1 |= nv->isp_config.burst_enable << 2; 2172 /* Enable DMA arbitration on dual channel controllers */ 2173 if (ha->ports > 1) 2174 cfg1 |= BIT_13; 2175 WRT_REG_WORD(®->cfg_1, cfg1); 2176 2177 /* Set SCSI termination. */ 2178 WRT_REG_WORD(®->gpio_enable, 2179 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0); 2180 term = nv->termination.scsi_bus_1_control; 2181 term |= nv->termination.scsi_bus_0_control << 2; 2182 term |= nv->termination.auto_term_support << 7; 2183 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2184 WRT_REG_WORD(®->gpio_data, term); 2185 } 2186 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2187 2188 /* ISP parameter word. */ 2189 mb[0] = MBC_SET_SYSTEM_PARAMETER; 2190 mb[1] = nv->isp_parameter; 2191 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); 2192 2193 if (IS_ISP1x40(ha)) { 2194 /* clock rate - for qla1240 and older, only */ 2195 mb[0] = MBC_SET_CLOCK_RATE; 2196 mb[1] = 40; 2197 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 2198 } 2199 2200 /* Firmware feature word. */ 2201 mb[0] = MBC_SET_FIRMWARE_FEATURES; 2202 mb[1] = nv->firmware_feature.f.enable_fast_posting; 2203 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1; 2204 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5; 2205 #if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2) 2206 if (ia64_platform_is("sn2")) { 2207 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA " 2208 "workaround\n", ha->host_no); 2209 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */ 2210 } 2211 #endif 2212 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 2213 2214 /* Retry count and delay. */ 2215 mb[0] = MBC_SET_RETRY_COUNT; 2216 mb[1] = nv->bus[0].retry_count; 2217 mb[2] = nv->bus[0].retry_delay; 2218 mb[6] = nv->bus[1].retry_count; 2219 mb[7] = nv->bus[1].retry_delay; 2220 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 | 2221 BIT_1 | BIT_0, &mb[0]); 2222 2223 /* ASYNC data setup time. */ 2224 mb[0] = MBC_SET_ASYNC_DATA_SETUP; 2225 mb[1] = nv->bus[0].config_2.async_data_setup_time; 2226 mb[2] = nv->bus[1].config_2.async_data_setup_time; 2227 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); 2228 2229 /* Active negation states. */ 2230 mb[0] = MBC_SET_ACTIVE_NEGATION; 2231 mb[1] = 0; 2232 if (nv->bus[0].config_2.req_ack_active_negation) 2233 mb[1] |= BIT_5; 2234 if (nv->bus[0].config_2.data_line_active_negation) 2235 mb[1] |= BIT_4; 2236 mb[2] = 0; 2237 if (nv->bus[1].config_2.req_ack_active_negation) 2238 mb[2] |= BIT_5; 2239 if (nv->bus[1].config_2.data_line_active_negation) 2240 mb[2] |= BIT_4; 2241 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); 2242 2243 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY; 2244 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */ 2245 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 2246 2247 /* thingy */ 2248 mb[0] = MBC_SET_PCI_CONTROL; 2249 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */ 2250 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */ 2251 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); 2252 2253 mb[0] = MBC_SET_TAG_AGE_LIMIT; 2254 mb[1] = 8; 2255 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 2256 2257 /* Selection timeout. */ 2258 mb[0] = MBC_SET_SELECTION_TIMEOUT; 2259 mb[1] = nv->bus[0].selection_timeout; 2260 mb[2] = nv->bus[1].selection_timeout; 2261 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); 2262 2263 for (bus = 0; bus < ha->ports; bus++) 2264 status |= qla1280_config_bus(ha, bus); 2265 2266 if (status) 2267 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n"); 2268 2269 LEAVE("qla1280_nvram_config"); 2270 return status; 2271 } 2272 2273 /* 2274 * Get NVRAM data word 2275 * Calculates word position in NVRAM and calls request routine to 2276 * get the word from NVRAM. 2277 * 2278 * Input: 2279 * ha = adapter block pointer. 2280 * address = NVRAM word address. 2281 * 2282 * Returns: 2283 * data word. 2284 */ 2285 static uint16_t 2286 qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address) 2287 { 2288 uint32_t nv_cmd; 2289 uint16_t data; 2290 2291 nv_cmd = address << 16; 2292 nv_cmd |= NV_READ_OP; 2293 2294 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd)); 2295 2296 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = " 2297 "0x%x", data); 2298 2299 return data; 2300 } 2301 2302 /* 2303 * NVRAM request 2304 * Sends read command to NVRAM and gets data from NVRAM. 2305 * 2306 * Input: 2307 * ha = adapter block pointer. 2308 * nv_cmd = Bit 26 = start bit 2309 * Bit 25, 24 = opcode 2310 * Bit 23-16 = address 2311 * Bit 15-0 = write data 2312 * 2313 * Returns: 2314 * data word. 2315 */ 2316 static uint16_t 2317 qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd) 2318 { 2319 struct device_reg __iomem *reg = ha->iobase; 2320 int cnt; 2321 uint16_t data = 0; 2322 uint16_t reg_data; 2323 2324 /* Send command to NVRAM. */ 2325 2326 nv_cmd <<= 5; 2327 for (cnt = 0; cnt < 11; cnt++) { 2328 if (nv_cmd & BIT_31) 2329 qla1280_nv_write(ha, NV_DATA_OUT); 2330 else 2331 qla1280_nv_write(ha, 0); 2332 nv_cmd <<= 1; 2333 } 2334 2335 /* Read data from NVRAM. */ 2336 2337 for (cnt = 0; cnt < 16; cnt++) { 2338 WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK)); 2339 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2340 NVRAM_DELAY(); 2341 data <<= 1; 2342 reg_data = RD_REG_WORD(®->nvram); 2343 if (reg_data & NV_DATA_IN) 2344 data |= BIT_0; 2345 WRT_REG_WORD(®->nvram, NV_SELECT); 2346 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2347 NVRAM_DELAY(); 2348 } 2349 2350 /* Deselect chip. */ 2351 2352 WRT_REG_WORD(®->nvram, NV_DESELECT); 2353 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2354 NVRAM_DELAY(); 2355 2356 return data; 2357 } 2358 2359 static void 2360 qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data) 2361 { 2362 struct device_reg __iomem *reg = ha->iobase; 2363 2364 WRT_REG_WORD(®->nvram, data | NV_SELECT); 2365 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2366 NVRAM_DELAY(); 2367 WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK); 2368 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2369 NVRAM_DELAY(); 2370 WRT_REG_WORD(®->nvram, data | NV_SELECT); 2371 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2372 NVRAM_DELAY(); 2373 } 2374 2375 /* 2376 * Mailbox Command 2377 * Issue mailbox command and waits for completion. 2378 * 2379 * Input: 2380 * ha = adapter block pointer. 2381 * mr = mailbox registers to load. 2382 * mb = data pointer for mailbox registers. 2383 * 2384 * Output: 2385 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data. 2386 * 2387 * Returns: 2388 * 0 = success 2389 */ 2390 static int 2391 qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb) 2392 { 2393 struct device_reg __iomem *reg = ha->iobase; 2394 #if 0 2395 LIST_HEAD(done_q); 2396 #endif 2397 int status = 0; 2398 int cnt; 2399 uint16_t *optr, *iptr; 2400 uint16_t __iomem *mptr; 2401 uint16_t data; 2402 DECLARE_COMPLETION_ONSTACK(wait); 2403 struct timer_list timer; 2404 2405 ENTER("qla1280_mailbox_command"); 2406 2407 if (ha->mailbox_wait) { 2408 printk(KERN_ERR "Warning mailbox wait already in use!\n"); 2409 } 2410 ha->mailbox_wait = &wait; 2411 2412 /* 2413 * We really should start out by verifying that the mailbox is 2414 * available before starting sending the command data 2415 */ 2416 /* Load mailbox registers. */ 2417 mptr = (uint16_t __iomem *) ®->mailbox0; 2418 iptr = mb; 2419 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) { 2420 if (mr & BIT_0) { 2421 WRT_REG_WORD(mptr, (*iptr)); 2422 } 2423 2424 mr >>= 1; 2425 mptr++; 2426 iptr++; 2427 } 2428 2429 /* Issue set host interrupt command. */ 2430 2431 /* set up a timer just in case we're really jammed */ 2432 init_timer(&timer); 2433 timer.expires = jiffies + 20*HZ; 2434 timer.data = (unsigned long)ha; 2435 timer.function = qla1280_mailbox_timeout; 2436 add_timer(&timer); 2437 2438 spin_unlock_irq(ha->host->host_lock); 2439 WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT); 2440 data = qla1280_debounce_register(®->istatus); 2441 2442 wait_for_completion(&wait); 2443 del_timer_sync(&timer); 2444 2445 spin_lock_irq(ha->host->host_lock); 2446 2447 ha->mailbox_wait = NULL; 2448 2449 /* Check for mailbox command timeout. */ 2450 if (ha->mailbox_out[0] != MBS_CMD_CMP) { 2451 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, " 2452 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = " 2453 "0x%04x\n", 2454 mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus)); 2455 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n", 2456 RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1), 2457 RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3)); 2458 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n", 2459 RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5), 2460 RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7)); 2461 status = 1; 2462 } 2463 2464 /* Load return mailbox registers. */ 2465 optr = mb; 2466 iptr = (uint16_t *) &ha->mailbox_out[0]; 2467 mr = MAILBOX_REGISTER_COUNT; 2468 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t)); 2469 2470 #if 0 2471 /* Go check for any response interrupts pending. */ 2472 qla1280_isr(ha, &done_q); 2473 #endif 2474 2475 if (ha->flags.reset_marker) 2476 qla1280_rst_aen(ha); 2477 2478 #if 0 2479 if (!list_empty(&done_q)) 2480 qla1280_done(ha, &done_q); 2481 #endif 2482 2483 if (status) 2484 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = " 2485 "0x%x ****\n", mb[0]); 2486 2487 LEAVE("qla1280_mailbox_command"); 2488 return status; 2489 } 2490 2491 /* 2492 * qla1280_poll 2493 * Polls ISP for interrupts. 2494 * 2495 * Input: 2496 * ha = adapter block pointer. 2497 */ 2498 static void 2499 qla1280_poll(struct scsi_qla_host *ha) 2500 { 2501 struct device_reg __iomem *reg = ha->iobase; 2502 uint16_t data; 2503 LIST_HEAD(done_q); 2504 2505 /* ENTER("qla1280_poll"); */ 2506 2507 /* Check for pending interrupts. */ 2508 data = RD_REG_WORD(®->istatus); 2509 if (data & RISC_INT) 2510 qla1280_isr(ha, &done_q); 2511 2512 if (!ha->mailbox_wait) { 2513 if (ha->flags.reset_marker) 2514 qla1280_rst_aen(ha); 2515 } 2516 2517 if (!list_empty(&done_q)) 2518 qla1280_done(ha); 2519 2520 /* LEAVE("qla1280_poll"); */ 2521 } 2522 2523 /* 2524 * qla1280_bus_reset 2525 * Issue SCSI bus reset. 2526 * 2527 * Input: 2528 * ha = adapter block pointer. 2529 * bus = SCSI bus number. 2530 * 2531 * Returns: 2532 * 0 = success 2533 */ 2534 static int 2535 qla1280_bus_reset(struct scsi_qla_host *ha, int bus) 2536 { 2537 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2538 uint16_t reset_delay; 2539 int status; 2540 2541 dprintk(3, "qla1280_bus_reset: entered\n"); 2542 2543 if (qla1280_verbose) 2544 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n", 2545 ha->host_no, bus); 2546 2547 reset_delay = ha->bus_settings[bus].bus_reset_delay; 2548 mb[0] = MBC_BUS_RESET; 2549 mb[1] = reset_delay; 2550 mb[2] = (uint16_t) bus; 2551 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); 2552 2553 if (status) { 2554 if (ha->bus_settings[bus].failed_reset_count > 2) 2555 ha->bus_settings[bus].scsi_bus_dead = 1; 2556 ha->bus_settings[bus].failed_reset_count++; 2557 } else { 2558 spin_unlock_irq(ha->host->host_lock); 2559 ssleep(reset_delay); 2560 spin_lock_irq(ha->host->host_lock); 2561 2562 ha->bus_settings[bus].scsi_bus_dead = 0; 2563 ha->bus_settings[bus].failed_reset_count = 0; 2564 ha->bus_settings[bus].reset_marker = 0; 2565 /* Issue marker command. */ 2566 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL); 2567 } 2568 2569 /* 2570 * We should probably call qla1280_set_target_parameters() 2571 * here as well for all devices on the bus. 2572 */ 2573 2574 if (status) 2575 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n"); 2576 else 2577 dprintk(3, "qla1280_bus_reset: exiting normally\n"); 2578 2579 return status; 2580 } 2581 2582 /* 2583 * qla1280_device_reset 2584 * Issue bus device reset message to the target. 2585 * 2586 * Input: 2587 * ha = adapter block pointer. 2588 * bus = SCSI BUS number. 2589 * target = SCSI ID. 2590 * 2591 * Returns: 2592 * 0 = success 2593 */ 2594 static int 2595 qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target) 2596 { 2597 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2598 int status; 2599 2600 ENTER("qla1280_device_reset"); 2601 2602 mb[0] = MBC_ABORT_TARGET; 2603 mb[1] = (bus ? (target | BIT_7) : target) << 8; 2604 mb[2] = 1; 2605 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); 2606 2607 /* Issue marker command. */ 2608 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); 2609 2610 if (status) 2611 dprintk(2, "qla1280_device_reset: **** FAILED ****\n"); 2612 2613 LEAVE("qla1280_device_reset"); 2614 return status; 2615 } 2616 2617 /* 2618 * qla1280_abort_device 2619 * Issue an abort message to the device 2620 * 2621 * Input: 2622 * ha = adapter block pointer. 2623 * bus = SCSI BUS. 2624 * target = SCSI ID. 2625 * lun = SCSI LUN. 2626 * 2627 * Returns: 2628 * 0 = success 2629 */ 2630 static int 2631 qla1280_abort_device(struct scsi_qla_host *ha, int bus, int target, int lun) 2632 { 2633 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2634 int status; 2635 2636 ENTER("qla1280_abort_device"); 2637 2638 mb[0] = MBC_ABORT_DEVICE; 2639 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun; 2640 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); 2641 2642 /* Issue marker command. */ 2643 qla1280_marker(ha, bus, target, lun, MK_SYNC_ID_LUN); 2644 2645 if (status) 2646 dprintk(2, "qla1280_abort_device: **** FAILED ****\n"); 2647 2648 LEAVE("qla1280_abort_device"); 2649 return status; 2650 } 2651 2652 /* 2653 * qla1280_abort_command 2654 * Abort command aborts a specified IOCB. 2655 * 2656 * Input: 2657 * ha = adapter block pointer. 2658 * sp = SB structure pointer. 2659 * 2660 * Returns: 2661 * 0 = success 2662 */ 2663 static int 2664 qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle) 2665 { 2666 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2667 unsigned int bus, target, lun; 2668 int status; 2669 2670 ENTER("qla1280_abort_command"); 2671 2672 bus = SCSI_BUS_32(sp->cmd); 2673 target = SCSI_TCN_32(sp->cmd); 2674 lun = SCSI_LUN_32(sp->cmd); 2675 2676 sp->flags |= SRB_ABORT_PENDING; 2677 2678 mb[0] = MBC_ABORT_COMMAND; 2679 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun; 2680 mb[2] = handle >> 16; 2681 mb[3] = handle & 0xffff; 2682 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]); 2683 2684 if (status) { 2685 dprintk(2, "qla1280_abort_command: **** FAILED ****\n"); 2686 sp->flags &= ~SRB_ABORT_PENDING; 2687 } 2688 2689 2690 LEAVE("qla1280_abort_command"); 2691 return status; 2692 } 2693 2694 /* 2695 * qla1280_reset_adapter 2696 * Reset adapter. 2697 * 2698 * Input: 2699 * ha = adapter block pointer. 2700 */ 2701 static void 2702 qla1280_reset_adapter(struct scsi_qla_host *ha) 2703 { 2704 struct device_reg __iomem *reg = ha->iobase; 2705 2706 ENTER("qla1280_reset_adapter"); 2707 2708 /* Disable ISP chip */ 2709 ha->flags.online = 0; 2710 WRT_REG_WORD(®->ictrl, ISP_RESET); 2711 WRT_REG_WORD(®->host_cmd, 2712 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS); 2713 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2714 2715 LEAVE("qla1280_reset_adapter"); 2716 } 2717 2718 /* 2719 * Issue marker command. 2720 * Function issues marker IOCB. 2721 * 2722 * Input: 2723 * ha = adapter block pointer. 2724 * bus = SCSI BUS number 2725 * id = SCSI ID 2726 * lun = SCSI LUN 2727 * type = marker modifier 2728 */ 2729 static void 2730 qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type) 2731 { 2732 struct mrk_entry *pkt; 2733 2734 ENTER("qla1280_marker"); 2735 2736 /* Get request packet. */ 2737 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) { 2738 pkt->entry_type = MARKER_TYPE; 2739 pkt->lun = (uint8_t) lun; 2740 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id); 2741 pkt->modifier = type; 2742 pkt->entry_status = 0; 2743 2744 /* Issue command to ISP */ 2745 qla1280_isp_cmd(ha); 2746 } 2747 2748 LEAVE("qla1280_marker"); 2749 } 2750 2751 2752 /* 2753 * qla1280_64bit_start_scsi 2754 * The start SCSI is responsible for building request packets on 2755 * request ring and modifying ISP input pointer. 2756 * 2757 * Input: 2758 * ha = adapter block pointer. 2759 * sp = SB structure pointer. 2760 * 2761 * Returns: 2762 * 0 = success, was able to issue command. 2763 */ 2764 #ifdef QLA_64BIT_PTR 2765 static int 2766 qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) 2767 { 2768 struct device_reg __iomem *reg = ha->iobase; 2769 struct scsi_cmnd *cmd = sp->cmd; 2770 cmd_a64_entry_t *pkt; 2771 __le32 *dword_ptr; 2772 dma_addr_t dma_handle; 2773 int status = 0; 2774 int cnt; 2775 int req_cnt; 2776 int seg_cnt; 2777 u8 dir; 2778 2779 ENTER("qla1280_64bit_start_scsi:"); 2780 2781 /* Calculate number of entries and segments required. */ 2782 req_cnt = 1; 2783 seg_cnt = scsi_dma_map(cmd); 2784 if (seg_cnt > 0) { 2785 if (seg_cnt > 2) { 2786 req_cnt += (seg_cnt - 2) / 5; 2787 if ((seg_cnt - 2) % 5) 2788 req_cnt++; 2789 } 2790 } else if (seg_cnt < 0) { 2791 status = 1; 2792 goto out; 2793 } 2794 2795 if ((req_cnt + 2) >= ha->req_q_cnt) { 2796 /* Calculate number of free request entries. */ 2797 cnt = RD_REG_WORD(®->mailbox4); 2798 if (ha->req_ring_index < cnt) 2799 ha->req_q_cnt = cnt - ha->req_ring_index; 2800 else 2801 ha->req_q_cnt = 2802 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); 2803 } 2804 2805 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n", 2806 ha->req_q_cnt, seg_cnt); 2807 2808 /* If room for request in request ring. */ 2809 if ((req_cnt + 2) >= ha->req_q_cnt) { 2810 status = 1; 2811 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt=" 2812 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt, 2813 req_cnt); 2814 goto out; 2815 } 2816 2817 /* Check for room in outstanding command list. */ 2818 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && 2819 ha->outstanding_cmds[cnt] != 0; cnt++); 2820 2821 if (cnt >= MAX_OUTSTANDING_COMMANDS) { 2822 status = 1; 2823 dprintk(2, "qla1280_start_scsi: NO ROOM IN " 2824 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt); 2825 goto out; 2826 } 2827 2828 ha->outstanding_cmds[cnt] = sp; 2829 ha->req_q_cnt -= req_cnt; 2830 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1); 2831 2832 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp, 2833 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd)); 2834 dprintk(2, " bus %i, target %i, lun %i\n", 2835 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 2836 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE); 2837 2838 /* 2839 * Build command packet. 2840 */ 2841 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr; 2842 2843 pkt->entry_type = COMMAND_A64_TYPE; 2844 pkt->entry_count = (uint8_t) req_cnt; 2845 pkt->sys_define = (uint8_t) ha->req_ring_index; 2846 pkt->entry_status = 0; 2847 pkt->handle = cpu_to_le32(cnt); 2848 2849 /* Zero out remaining portion of packet. */ 2850 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); 2851 2852 /* Set ISP command timeout. */ 2853 pkt->timeout = cpu_to_le16(cmd->timeout_per_command/HZ); 2854 2855 /* Set device target ID and LUN */ 2856 pkt->lun = SCSI_LUN_32(cmd); 2857 pkt->target = SCSI_BUS_32(cmd) ? 2858 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); 2859 2860 /* Enable simple tag queuing if device supports it. */ 2861 if (cmd->device->simple_tags) 2862 pkt->control_flags |= cpu_to_le16(BIT_3); 2863 2864 /* Load SCSI command packet. */ 2865 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); 2866 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd)); 2867 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ 2868 2869 /* Set transfer direction. */ 2870 dir = qla1280_data_direction(cmd); 2871 pkt->control_flags |= cpu_to_le16(dir); 2872 2873 /* Set total data segment count. */ 2874 pkt->dseg_count = cpu_to_le16(seg_cnt); 2875 2876 /* 2877 * Load data segments. 2878 */ 2879 if (seg_cnt) { /* If data transfer. */ 2880 struct scatterlist *sg, *s; 2881 int remseg = seg_cnt; 2882 2883 sg = scsi_sglist(cmd); 2884 2885 /* Setup packet address segment pointer. */ 2886 dword_ptr = (u32 *)&pkt->dseg_0_address; 2887 2888 /* Load command entry data segments. */ 2889 for_each_sg(sg, s, seg_cnt, cnt) { 2890 if (cnt == 2) 2891 break; 2892 2893 dma_handle = sg_dma_address(s); 2894 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 2895 if (ha->flags.use_pci_vchannel) 2896 sn_pci_set_vchan(ha->pdev, 2897 (unsigned long *)&dma_handle, 2898 SCSI_BUS_32(cmd)); 2899 #endif 2900 *dword_ptr++ = 2901 cpu_to_le32(pci_dma_lo32(dma_handle)); 2902 *dword_ptr++ = 2903 cpu_to_le32(pci_dma_hi32(dma_handle)); 2904 *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); 2905 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n", 2906 cpu_to_le32(pci_dma_hi32(dma_handle)), 2907 cpu_to_le32(pci_dma_lo32(dma_handle)), 2908 cpu_to_le32(sg_dma_len(sg_next(s)))); 2909 remseg--; 2910 } 2911 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather " 2912 "command packet data - b %i, t %i, l %i \n", 2913 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), 2914 SCSI_LUN_32(cmd)); 2915 qla1280_dump_buffer(5, (char *)pkt, 2916 REQUEST_ENTRY_SIZE); 2917 2918 /* 2919 * Build continuation packets. 2920 */ 2921 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x " 2922 "remains\n", seg_cnt); 2923 2924 while (remseg > 0) { 2925 /* Update sg start */ 2926 sg = s; 2927 /* Adjust ring index. */ 2928 ha->req_ring_index++; 2929 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 2930 ha->req_ring_index = 0; 2931 ha->request_ring_ptr = 2932 ha->request_ring; 2933 } else 2934 ha->request_ring_ptr++; 2935 2936 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr; 2937 2938 /* Zero out packet. */ 2939 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2940 2941 /* Load packet defaults. */ 2942 ((struct cont_a64_entry *) pkt)->entry_type = 2943 CONTINUE_A64_TYPE; 2944 ((struct cont_a64_entry *) pkt)->entry_count = 1; 2945 ((struct cont_a64_entry *) pkt)->sys_define = 2946 (uint8_t)ha->req_ring_index; 2947 /* Setup packet address segment pointer. */ 2948 dword_ptr = 2949 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address; 2950 2951 /* Load continuation entry data segments. */ 2952 for_each_sg(sg, s, remseg, cnt) { 2953 if (cnt == 5) 2954 break; 2955 dma_handle = sg_dma_address(s); 2956 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 2957 if (ha->flags.use_pci_vchannel) 2958 sn_pci_set_vchan(ha->pdev, 2959 (unsigned long *)&dma_handle, 2960 SCSI_BUS_32(cmd)); 2961 #endif 2962 *dword_ptr++ = 2963 cpu_to_le32(pci_dma_lo32(dma_handle)); 2964 *dword_ptr++ = 2965 cpu_to_le32(pci_dma_hi32(dma_handle)); 2966 *dword_ptr++ = 2967 cpu_to_le32(sg_dma_len(s)); 2968 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n", 2969 cpu_to_le32(pci_dma_hi32(dma_handle)), 2970 cpu_to_le32(pci_dma_lo32(dma_handle)), 2971 cpu_to_le32(sg_dma_len(s))); 2972 } 2973 remseg -= cnt; 2974 dprintk(5, "qla1280_64bit_start_scsi: " 2975 "continuation packet data - b %i, t " 2976 "%i, l %i \n", SCSI_BUS_32(cmd), 2977 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 2978 qla1280_dump_buffer(5, (char *)pkt, 2979 REQUEST_ENTRY_SIZE); 2980 } 2981 } else { /* No data transfer */ 2982 dprintk(5, "qla1280_64bit_start_scsi: No data, command " 2983 "packet data - b %i, t %i, l %i \n", 2984 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 2985 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); 2986 } 2987 /* Adjust ring index. */ 2988 ha->req_ring_index++; 2989 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 2990 ha->req_ring_index = 0; 2991 ha->request_ring_ptr = ha->request_ring; 2992 } else 2993 ha->request_ring_ptr++; 2994 2995 /* Set chip new ring index. */ 2996 dprintk(2, 2997 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n"); 2998 sp->flags |= SRB_SENT; 2999 ha->actthreads++; 3000 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3001 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ 3002 mmiowb(); 3003 3004 out: 3005 if (status) 3006 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n"); 3007 else 3008 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n"); 3009 3010 return status; 3011 } 3012 #else /* !QLA_64BIT_PTR */ 3013 3014 /* 3015 * qla1280_32bit_start_scsi 3016 * The start SCSI is responsible for building request packets on 3017 * request ring and modifying ISP input pointer. 3018 * 3019 * The Qlogic firmware interface allows every queue slot to have a SCSI 3020 * command and up to 4 scatter/gather (SG) entries. If we need more 3021 * than 4 SG entries, then continuation entries are used that can 3022 * hold another 7 entries each. The start routine determines if there 3023 * is eought empty slots then build the combination of requests to 3024 * fulfill the OS request. 3025 * 3026 * Input: 3027 * ha = adapter block pointer. 3028 * sp = SCSI Request Block structure pointer. 3029 * 3030 * Returns: 3031 * 0 = success, was able to issue command. 3032 */ 3033 static int 3034 qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) 3035 { 3036 struct device_reg __iomem *reg = ha->iobase; 3037 struct scsi_cmnd *cmd = sp->cmd; 3038 struct cmd_entry *pkt; 3039 __le32 *dword_ptr; 3040 int status = 0; 3041 int cnt; 3042 int req_cnt; 3043 int seg_cnt; 3044 u8 dir; 3045 3046 ENTER("qla1280_32bit_start_scsi"); 3047 3048 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp, 3049 cmd->cmnd[0]); 3050 3051 /* Calculate number of entries and segments required. */ 3052 req_cnt = 1; 3053 seg_cnt = scsi_dma_map(cmd); 3054 if (seg_cnt) { 3055 /* 3056 * if greater than four sg entries then we need to allocate 3057 * continuation entries 3058 */ 3059 if (seg_cnt > 4) { 3060 req_cnt += (seg_cnt - 4) / 7; 3061 if ((seg_cnt - 4) % 7) 3062 req_cnt++; 3063 } 3064 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n", 3065 cmd, seg_cnt, req_cnt); 3066 } else if (seg_cnt < 0) { 3067 status = 1; 3068 goto out; 3069 } 3070 3071 if ((req_cnt + 2) >= ha->req_q_cnt) { 3072 /* Calculate number of free request entries. */ 3073 cnt = RD_REG_WORD(®->mailbox4); 3074 if (ha->req_ring_index < cnt) 3075 ha->req_q_cnt = cnt - ha->req_ring_index; 3076 else 3077 ha->req_q_cnt = 3078 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); 3079 } 3080 3081 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n", 3082 ha->req_q_cnt, seg_cnt); 3083 /* If room for request in request ring. */ 3084 if ((req_cnt + 2) >= ha->req_q_cnt) { 3085 status = 1; 3086 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, " 3087 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index, 3088 ha->req_q_cnt, req_cnt); 3089 goto out; 3090 } 3091 3092 /* Check for empty slot 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_32bit_start_scsi: NO ROOM IN OUTSTANDING " 3099 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt); 3100 goto out; 3101 } 3102 3103 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1); 3104 ha->outstanding_cmds[cnt] = sp; 3105 ha->req_q_cnt -= req_cnt; 3106 3107 /* 3108 * Build command packet. 3109 */ 3110 pkt = (struct cmd_entry *) ha->request_ring_ptr; 3111 3112 pkt->entry_type = COMMAND_TYPE; 3113 pkt->entry_count = (uint8_t) req_cnt; 3114 pkt->sys_define = (uint8_t) ha->req_ring_index; 3115 pkt->entry_status = 0; 3116 pkt->handle = cpu_to_le32(cnt); 3117 3118 /* Zero out remaining portion of packet. */ 3119 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); 3120 3121 /* Set ISP command timeout. */ 3122 pkt->timeout = cpu_to_le16(cmd->timeout_per_command/HZ); 3123 3124 /* Set device target ID and LUN */ 3125 pkt->lun = SCSI_LUN_32(cmd); 3126 pkt->target = SCSI_BUS_32(cmd) ? 3127 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); 3128 3129 /* Enable simple tag queuing if device supports it. */ 3130 if (cmd->device->simple_tags) 3131 pkt->control_flags |= cpu_to_le16(BIT_3); 3132 3133 /* Load SCSI command packet. */ 3134 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); 3135 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd)); 3136 3137 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ 3138 /* Set transfer direction. */ 3139 dir = qla1280_data_direction(cmd); 3140 pkt->control_flags |= cpu_to_le16(dir); 3141 3142 /* Set total data segment count. */ 3143 pkt->dseg_count = cpu_to_le16(seg_cnt); 3144 3145 /* 3146 * Load data segments. 3147 */ 3148 if (seg_cnt) { 3149 struct scatterlist *sg, *s; 3150 int remseg = seg_cnt; 3151 3152 sg = scsi_sglist(cmd); 3153 3154 /* Setup packet address segment pointer. */ 3155 dword_ptr = &pkt->dseg_0_address; 3156 3157 dprintk(3, "Building S/G data segments..\n"); 3158 qla1280_dump_buffer(1, (char *)sg, 4 * 16); 3159 3160 /* Load command entry data segments. */ 3161 for_each_sg(sg, s, seg_cnt, cnt) { 3162 if (cnt == 4) 3163 break; 3164 *dword_ptr++ = 3165 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); 3166 *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); 3167 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n", 3168 (pci_dma_lo32(sg_dma_address(s))), 3169 (sg_dma_len(s))); 3170 remseg--; 3171 } 3172 /* 3173 * Build continuation packets. 3174 */ 3175 dprintk(3, "S/G Building Continuation" 3176 "...seg_cnt=0x%x remains\n", seg_cnt); 3177 while (remseg > 0) { 3178 /* Continue from end point */ 3179 sg = s; 3180 /* Adjust ring index. */ 3181 ha->req_ring_index++; 3182 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3183 ha->req_ring_index = 0; 3184 ha->request_ring_ptr = 3185 ha->request_ring; 3186 } else 3187 ha->request_ring_ptr++; 3188 3189 pkt = (struct cmd_entry *)ha->request_ring_ptr; 3190 3191 /* Zero out packet. */ 3192 memset(pkt, 0, REQUEST_ENTRY_SIZE); 3193 3194 /* Load packet defaults. */ 3195 ((struct cont_entry *) pkt)-> 3196 entry_type = CONTINUE_TYPE; 3197 ((struct cont_entry *) pkt)->entry_count = 1; 3198 3199 ((struct cont_entry *) pkt)->sys_define = 3200 (uint8_t) ha->req_ring_index; 3201 3202 /* Setup packet address segment pointer. */ 3203 dword_ptr = 3204 &((struct cont_entry *) pkt)->dseg_0_address; 3205 3206 /* Load continuation entry data segments. */ 3207 for_each_sg(sg, s, remseg, cnt) { 3208 if (cnt == 7) 3209 break; 3210 *dword_ptr++ = 3211 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); 3212 *dword_ptr++ = 3213 cpu_to_le32(sg_dma_len(s)); 3214 dprintk(1, 3215 "S/G Segment Cont. phys_addr=0x%x, " 3216 "len=0x%x\n", 3217 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))), 3218 cpu_to_le32(sg_dma_len(s))); 3219 } 3220 remseg -= cnt; 3221 dprintk(5, "qla1280_32bit_start_scsi: " 3222 "continuation packet data - " 3223 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd), 3224 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 3225 qla1280_dump_buffer(5, (char *)pkt, 3226 REQUEST_ENTRY_SIZE); 3227 } 3228 } else { /* No data transfer at all */ 3229 dprintk(5, "qla1280_32bit_start_scsi: No data, command " 3230 "packet data - \n"); 3231 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); 3232 } 3233 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n"); 3234 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, 3235 REQUEST_ENTRY_SIZE); 3236 3237 /* Adjust ring index. */ 3238 ha->req_ring_index++; 3239 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3240 ha->req_ring_index = 0; 3241 ha->request_ring_ptr = ha->request_ring; 3242 } else 3243 ha->request_ring_ptr++; 3244 3245 /* Set chip new ring index. */ 3246 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC " 3247 "for pending command\n"); 3248 sp->flags |= SRB_SENT; 3249 ha->actthreads++; 3250 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3251 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ 3252 mmiowb(); 3253 3254 out: 3255 if (status) 3256 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n"); 3257 3258 LEAVE("qla1280_32bit_start_scsi"); 3259 3260 return status; 3261 } 3262 #endif 3263 3264 /* 3265 * qla1280_req_pkt 3266 * Function is responsible for locking ring and 3267 * getting a zeroed out request packet. 3268 * 3269 * Input: 3270 * ha = adapter block pointer. 3271 * 3272 * Returns: 3273 * 0 = failed to get slot. 3274 */ 3275 static request_t * 3276 qla1280_req_pkt(struct scsi_qla_host *ha) 3277 { 3278 struct device_reg __iomem *reg = ha->iobase; 3279 request_t *pkt = NULL; 3280 int cnt; 3281 uint32_t timer; 3282 3283 ENTER("qla1280_req_pkt"); 3284 3285 /* 3286 * This can be called from interrupt context, damn it!!! 3287 */ 3288 /* Wait for 30 seconds for slot. */ 3289 for (timer = 15000000; timer; timer--) { 3290 if (ha->req_q_cnt > 0) { 3291 /* Calculate number of free request entries. */ 3292 cnt = RD_REG_WORD(®->mailbox4); 3293 if (ha->req_ring_index < cnt) 3294 ha->req_q_cnt = cnt - ha->req_ring_index; 3295 else 3296 ha->req_q_cnt = 3297 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); 3298 } 3299 3300 /* Found empty request ring slot? */ 3301 if (ha->req_q_cnt > 0) { 3302 ha->req_q_cnt--; 3303 pkt = ha->request_ring_ptr; 3304 3305 /* Zero out packet. */ 3306 memset(pkt, 0, REQUEST_ENTRY_SIZE); 3307 3308 /* 3309 * How can this be right when we have a ring 3310 * size of 512??? 3311 */ 3312 /* Set system defined field. */ 3313 pkt->sys_define = (uint8_t) ha->req_ring_index; 3314 3315 /* Set entry count. */ 3316 pkt->entry_count = 1; 3317 3318 break; 3319 } 3320 3321 udelay(2); /* 10 */ 3322 3323 /* Check for pending interrupts. */ 3324 qla1280_poll(ha); 3325 } 3326 3327 if (!pkt) 3328 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n"); 3329 else 3330 dprintk(3, "qla1280_req_pkt: exiting normally\n"); 3331 3332 return pkt; 3333 } 3334 3335 /* 3336 * qla1280_isp_cmd 3337 * Function is responsible for modifying ISP input pointer. 3338 * Releases ring lock. 3339 * 3340 * Input: 3341 * ha = adapter block pointer. 3342 */ 3343 static void 3344 qla1280_isp_cmd(struct scsi_qla_host *ha) 3345 { 3346 struct device_reg __iomem *reg = ha->iobase; 3347 3348 ENTER("qla1280_isp_cmd"); 3349 3350 dprintk(5, "qla1280_isp_cmd: IOCB data:\n"); 3351 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, 3352 REQUEST_ENTRY_SIZE); 3353 3354 /* Adjust ring index. */ 3355 ha->req_ring_index++; 3356 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3357 ha->req_ring_index = 0; 3358 ha->request_ring_ptr = ha->request_ring; 3359 } else 3360 ha->request_ring_ptr++; 3361 3362 /* 3363 * Update request index to mailbox4 (Request Queue In). 3364 * The mmiowb() ensures that this write is ordered with writes by other 3365 * CPUs. Without the mmiowb(), it is possible for the following: 3366 * CPUA posts write of index 5 to mailbox4 3367 * CPUA releases host lock 3368 * CPUB acquires host lock 3369 * CPUB posts write of index 6 to mailbox4 3370 * On PCI bus, order reverses and write of 6 posts, then index 5, 3371 * causing chip to issue full queue of stale commands 3372 * The mmiowb() prevents future writes from crossing the barrier. 3373 * See Documentation/DocBook/deviceiobook.tmpl for more information. 3374 */ 3375 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3376 mmiowb(); 3377 3378 LEAVE("qla1280_isp_cmd"); 3379 } 3380 3381 /****************************************************************************/ 3382 /* Interrupt Service Routine. */ 3383 /****************************************************************************/ 3384 3385 /**************************************************************************** 3386 * qla1280_isr 3387 * Calls I/O done on command completion. 3388 * 3389 * Input: 3390 * ha = adapter block pointer. 3391 * done_q = done queue. 3392 ****************************************************************************/ 3393 static void 3394 qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q) 3395 { 3396 struct device_reg __iomem *reg = ha->iobase; 3397 struct response *pkt; 3398 struct srb *sp = NULL; 3399 uint16_t mailbox[MAILBOX_REGISTER_COUNT]; 3400 uint16_t *wptr; 3401 uint32_t index; 3402 u16 istatus; 3403 3404 ENTER("qla1280_isr"); 3405 3406 istatus = RD_REG_WORD(®->istatus); 3407 if (!(istatus & (RISC_INT | PCI_INT))) 3408 return; 3409 3410 /* Save mailbox register 5 */ 3411 mailbox[5] = RD_REG_WORD(®->mailbox5); 3412 3413 /* Check for mailbox interrupt. */ 3414 3415 mailbox[0] = RD_REG_WORD_dmasync(®->semaphore); 3416 3417 if (mailbox[0] & BIT_0) { 3418 /* Get mailbox data. */ 3419 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */ 3420 3421 wptr = &mailbox[0]; 3422 *wptr++ = RD_REG_WORD(®->mailbox0); 3423 *wptr++ = RD_REG_WORD(®->mailbox1); 3424 *wptr = RD_REG_WORD(®->mailbox2); 3425 if (mailbox[0] != MBA_SCSI_COMPLETION) { 3426 wptr++; 3427 *wptr++ = RD_REG_WORD(®->mailbox3); 3428 *wptr++ = RD_REG_WORD(®->mailbox4); 3429 wptr++; 3430 *wptr++ = RD_REG_WORD(®->mailbox6); 3431 *wptr = RD_REG_WORD(®->mailbox7); 3432 } 3433 3434 /* Release mailbox registers. */ 3435 3436 WRT_REG_WORD(®->semaphore, 0); 3437 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); 3438 3439 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x", 3440 mailbox[0]); 3441 3442 /* Handle asynchronous event */ 3443 switch (mailbox[0]) { 3444 case MBA_SCSI_COMPLETION: /* Response completion */ 3445 dprintk(5, "qla1280_isr: mailbox SCSI response " 3446 "completion\n"); 3447 3448 if (ha->flags.online) { 3449 /* Get outstanding command index. */ 3450 index = mailbox[2] << 16 | mailbox[1]; 3451 3452 /* Validate handle. */ 3453 if (index < MAX_OUTSTANDING_COMMANDS) 3454 sp = ha->outstanding_cmds[index]; 3455 else 3456 sp = NULL; 3457 3458 if (sp) { 3459 /* Free outstanding command slot. */ 3460 ha->outstanding_cmds[index] = NULL; 3461 3462 /* Save ISP completion status */ 3463 CMD_RESULT(sp->cmd) = 0; 3464 3465 /* Place block on done queue */ 3466 list_add_tail(&sp->list, done_q); 3467 } else { 3468 /* 3469 * If we get here we have a real problem! 3470 */ 3471 printk(KERN_WARNING 3472 "qla1280: ISP invalid handle"); 3473 } 3474 } 3475 break; 3476 3477 case MBA_BUS_RESET: /* SCSI Bus Reset */ 3478 ha->flags.reset_marker = 1; 3479 index = mailbox[6] & BIT_0; 3480 ha->bus_settings[index].reset_marker = 1; 3481 3482 printk(KERN_DEBUG "qla1280_isr(): index %i " 3483 "asynchronous BUS_RESET\n", index); 3484 break; 3485 3486 case MBA_SYSTEM_ERR: /* System Error */ 3487 printk(KERN_WARNING 3488 "qla1280: ISP System Error - mbx1=%xh, mbx2=" 3489 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2], 3490 mailbox[3]); 3491 break; 3492 3493 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 3494 printk(KERN_WARNING 3495 "qla1280: ISP Request Transfer Error\n"); 3496 break; 3497 3498 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 3499 printk(KERN_WARNING 3500 "qla1280: ISP Response Transfer Error\n"); 3501 break; 3502 3503 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 3504 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n"); 3505 break; 3506 3507 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */ 3508 dprintk(2, 3509 "qla1280_isr: asynchronous TIMEOUT_RESET\n"); 3510 break; 3511 3512 case MBA_DEVICE_RESET: /* Bus Device Reset */ 3513 printk(KERN_INFO "qla1280_isr(): asynchronous " 3514 "BUS_DEVICE_RESET\n"); 3515 3516 ha->flags.reset_marker = 1; 3517 index = mailbox[6] & BIT_0; 3518 ha->bus_settings[index].reset_marker = 1; 3519 break; 3520 3521 case MBA_BUS_MODE_CHANGE: 3522 dprintk(2, 3523 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n"); 3524 break; 3525 3526 default: 3527 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */ 3528 if (mailbox[0] < MBA_ASYNC_EVENT) { 3529 wptr = &mailbox[0]; 3530 memcpy((uint16_t *) ha->mailbox_out, wptr, 3531 MAILBOX_REGISTER_COUNT * 3532 sizeof(uint16_t)); 3533 3534 if(ha->mailbox_wait != NULL) 3535 complete(ha->mailbox_wait); 3536 } 3537 break; 3538 } 3539 } else { 3540 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); 3541 } 3542 3543 /* 3544 * We will receive interrupts during mailbox testing prior to 3545 * the card being marked online, hence the double check. 3546 */ 3547 if (!(ha->flags.online && !ha->mailbox_wait)) { 3548 dprintk(2, "qla1280_isr: Response pointer Error\n"); 3549 goto out; 3550 } 3551 3552 if (mailbox[5] >= RESPONSE_ENTRY_CNT) 3553 goto out; 3554 3555 while (ha->rsp_ring_index != mailbox[5]) { 3556 pkt = ha->response_ring_ptr; 3557 3558 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]" 3559 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]); 3560 dprintk(5,"qla1280_isr: response packet data\n"); 3561 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE); 3562 3563 if (pkt->entry_type == STATUS_TYPE) { 3564 if ((le16_to_cpu(pkt->scsi_status) & 0xff) 3565 || pkt->comp_status || pkt->entry_status) { 3566 dprintk(2, "qla1280_isr: ha->rsp_ring_index = " 3567 "0x%x mailbox[5] = 0x%x, comp_status " 3568 "= 0x%x, scsi_status = 0x%x\n", 3569 ha->rsp_ring_index, mailbox[5], 3570 le16_to_cpu(pkt->comp_status), 3571 le16_to_cpu(pkt->scsi_status)); 3572 } 3573 } else { 3574 dprintk(2, "qla1280_isr: ha->rsp_ring_index = " 3575 "0x%x, mailbox[5] = 0x%x\n", 3576 ha->rsp_ring_index, mailbox[5]); 3577 dprintk(2, "qla1280_isr: response packet data\n"); 3578 qla1280_dump_buffer(2, (char *)pkt, 3579 RESPONSE_ENTRY_SIZE); 3580 } 3581 3582 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) { 3583 dprintk(2, "status: Cmd %p, handle %i\n", 3584 ha->outstanding_cmds[pkt->handle]->cmd, 3585 pkt->handle); 3586 if (pkt->entry_type == STATUS_TYPE) 3587 qla1280_status_entry(ha, pkt, done_q); 3588 else 3589 qla1280_error_entry(ha, pkt, done_q); 3590 /* Adjust ring index. */ 3591 ha->rsp_ring_index++; 3592 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) { 3593 ha->rsp_ring_index = 0; 3594 ha->response_ring_ptr = ha->response_ring; 3595 } else 3596 ha->response_ring_ptr++; 3597 WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index); 3598 } 3599 } 3600 3601 out: 3602 LEAVE("qla1280_isr"); 3603 } 3604 3605 /* 3606 * qla1280_rst_aen 3607 * Processes asynchronous reset. 3608 * 3609 * Input: 3610 * ha = adapter block pointer. 3611 */ 3612 static void 3613 qla1280_rst_aen(struct scsi_qla_host *ha) 3614 { 3615 uint8_t bus; 3616 3617 ENTER("qla1280_rst_aen"); 3618 3619 if (ha->flags.online && !ha->flags.reset_active && 3620 !ha->flags.abort_isp_active) { 3621 ha->flags.reset_active = 1; 3622 while (ha->flags.reset_marker) { 3623 /* Issue marker command. */ 3624 ha->flags.reset_marker = 0; 3625 for (bus = 0; bus < ha->ports && 3626 !ha->flags.reset_marker; bus++) { 3627 if (ha->bus_settings[bus].reset_marker) { 3628 ha->bus_settings[bus].reset_marker = 0; 3629 qla1280_marker(ha, bus, 0, 0, 3630 MK_SYNC_ALL); 3631 } 3632 } 3633 } 3634 } 3635 3636 LEAVE("qla1280_rst_aen"); 3637 } 3638 3639 3640 /* 3641 * qla1280_status_entry 3642 * Processes received ISP status entry. 3643 * 3644 * Input: 3645 * ha = adapter block pointer. 3646 * pkt = entry pointer. 3647 * done_q = done queue. 3648 */ 3649 static void 3650 qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt, 3651 struct list_head *done_q) 3652 { 3653 unsigned int bus, target, lun; 3654 int sense_sz; 3655 struct srb *sp; 3656 struct scsi_cmnd *cmd; 3657 uint32_t handle = le32_to_cpu(pkt->handle); 3658 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status); 3659 uint16_t comp_status = le16_to_cpu(pkt->comp_status); 3660 3661 ENTER("qla1280_status_entry"); 3662 3663 /* Validate handle. */ 3664 if (handle < MAX_OUTSTANDING_COMMANDS) 3665 sp = ha->outstanding_cmds[handle]; 3666 else 3667 sp = NULL; 3668 3669 if (!sp) { 3670 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n"); 3671 goto out; 3672 } 3673 3674 /* Free outstanding command slot. */ 3675 ha->outstanding_cmds[handle] = NULL; 3676 3677 cmd = sp->cmd; 3678 3679 /* Generate LU queue on cntrl, target, LUN */ 3680 bus = SCSI_BUS_32(cmd); 3681 target = SCSI_TCN_32(cmd); 3682 lun = SCSI_LUN_32(cmd); 3683 3684 if (comp_status || scsi_status) { 3685 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = " 3686 "0x%x, handle = 0x%x\n", comp_status, 3687 scsi_status, handle); 3688 } 3689 3690 /* Target busy or queue full */ 3691 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL || 3692 (scsi_status & 0xFF) == SAM_STAT_BUSY) { 3693 CMD_RESULT(cmd) = scsi_status & 0xff; 3694 } else { 3695 3696 /* Save ISP completion status */ 3697 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd); 3698 3699 if (scsi_status & SAM_STAT_CHECK_CONDITION) { 3700 if (comp_status != CS_ARS_FAILED) { 3701 uint16_t req_sense_length = 3702 le16_to_cpu(pkt->req_sense_length); 3703 if (req_sense_length < CMD_SNSLEN(cmd)) 3704 sense_sz = req_sense_length; 3705 else 3706 /* 3707 * scsi_cmnd->sense_buffer is 3708 * 64 bytes, why only copy 63? 3709 * This looks wrong! /Jes 3710 */ 3711 sense_sz = CMD_SNSLEN(cmd) - 1; 3712 3713 memcpy(cmd->sense_buffer, 3714 &pkt->req_sense_data, sense_sz); 3715 } else 3716 sense_sz = 0; 3717 memset(cmd->sense_buffer + sense_sz, 0, 3718 SCSI_SENSE_BUFFERSIZE - sense_sz); 3719 3720 dprintk(2, "qla1280_status_entry: Check " 3721 "condition Sense data, b %i, t %i, " 3722 "l %i\n", bus, target, lun); 3723 if (sense_sz) 3724 qla1280_dump_buffer(2, 3725 (char *)cmd->sense_buffer, 3726 sense_sz); 3727 } 3728 } 3729 3730 /* Place command on done queue. */ 3731 list_add_tail(&sp->list, done_q); 3732 out: 3733 LEAVE("qla1280_status_entry"); 3734 } 3735 3736 /* 3737 * qla1280_error_entry 3738 * Processes error entry. 3739 * 3740 * Input: 3741 * ha = adapter block pointer. 3742 * pkt = entry pointer. 3743 * done_q = done queue. 3744 */ 3745 static void 3746 qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt, 3747 struct list_head *done_q) 3748 { 3749 struct srb *sp; 3750 uint32_t handle = le32_to_cpu(pkt->handle); 3751 3752 ENTER("qla1280_error_entry"); 3753 3754 if (pkt->entry_status & BIT_3) 3755 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n"); 3756 else if (pkt->entry_status & BIT_2) 3757 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n"); 3758 else if (pkt->entry_status & BIT_1) 3759 dprintk(2, "qla1280_error_entry: FULL flag error\n"); 3760 else 3761 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n"); 3762 3763 /* Validate handle. */ 3764 if (handle < MAX_OUTSTANDING_COMMANDS) 3765 sp = ha->outstanding_cmds[handle]; 3766 else 3767 sp = NULL; 3768 3769 if (sp) { 3770 /* Free outstanding command slot. */ 3771 ha->outstanding_cmds[handle] = NULL; 3772 3773 /* Bad payload or header */ 3774 if (pkt->entry_status & (BIT_3 + BIT_2)) { 3775 /* Bad payload or header, set error status. */ 3776 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */ 3777 CMD_RESULT(sp->cmd) = DID_ERROR << 16; 3778 } else if (pkt->entry_status & BIT_1) { /* FULL flag */ 3779 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16; 3780 } else { 3781 /* Set error status. */ 3782 CMD_RESULT(sp->cmd) = DID_ERROR << 16; 3783 } 3784 3785 /* Place command on done queue. */ 3786 list_add_tail(&sp->list, done_q); 3787 } 3788 #ifdef QLA_64BIT_PTR 3789 else if (pkt->entry_type == COMMAND_A64_TYPE) { 3790 printk(KERN_WARNING "!qla1280: Error Entry invalid handle"); 3791 } 3792 #endif 3793 3794 LEAVE("qla1280_error_entry"); 3795 } 3796 3797 /* 3798 * qla1280_abort_isp 3799 * Resets ISP and aborts all outstanding commands. 3800 * 3801 * Input: 3802 * ha = adapter block pointer. 3803 * 3804 * Returns: 3805 * 0 = success 3806 */ 3807 static int 3808 qla1280_abort_isp(struct scsi_qla_host *ha) 3809 { 3810 struct device_reg __iomem *reg = ha->iobase; 3811 struct srb *sp; 3812 int status = 0; 3813 int cnt; 3814 int bus; 3815 3816 ENTER("qla1280_abort_isp"); 3817 3818 if (ha->flags.abort_isp_active || !ha->flags.online) 3819 goto out; 3820 3821 ha->flags.abort_isp_active = 1; 3822 3823 /* Disable ISP interrupts. */ 3824 qla1280_disable_intrs(ha); 3825 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); 3826 RD_REG_WORD(®->id_l); 3827 3828 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n", 3829 ha->host_no); 3830 /* Dequeue all commands in outstanding command list. */ 3831 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { 3832 struct scsi_cmnd *cmd; 3833 sp = ha->outstanding_cmds[cnt]; 3834 if (sp) { 3835 3836 cmd = sp->cmd; 3837 CMD_RESULT(cmd) = DID_RESET << 16; 3838 3839 sp->cmd = NULL; 3840 ha->outstanding_cmds[cnt] = NULL; 3841 3842 (*cmd->scsi_done)(cmd); 3843 3844 sp->flags = 0; 3845 } 3846 } 3847 3848 status = qla1280_load_firmware(ha); 3849 if (status) 3850 goto out; 3851 3852 /* Setup adapter based on NVRAM parameters. */ 3853 qla1280_nvram_config (ha); 3854 3855 status = qla1280_init_rings(ha); 3856 if (status) 3857 goto out; 3858 3859 /* Issue SCSI reset. */ 3860 for (bus = 0; bus < ha->ports; bus++) 3861 qla1280_bus_reset(ha, bus); 3862 3863 ha->flags.abort_isp_active = 0; 3864 out: 3865 if (status) { 3866 printk(KERN_WARNING 3867 "qla1280: ISP error recovery failed, board disabled"); 3868 qla1280_reset_adapter(ha); 3869 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n"); 3870 } 3871 3872 LEAVE("qla1280_abort_isp"); 3873 return status; 3874 } 3875 3876 3877 /* 3878 * qla1280_debounce_register 3879 * Debounce register. 3880 * 3881 * Input: 3882 * port = register address. 3883 * 3884 * Returns: 3885 * register value. 3886 */ 3887 static u16 3888 qla1280_debounce_register(volatile u16 __iomem * addr) 3889 { 3890 volatile u16 ret; 3891 volatile u16 ret2; 3892 3893 ret = RD_REG_WORD(addr); 3894 ret2 = RD_REG_WORD(addr); 3895 3896 if (ret == ret2) 3897 return ret; 3898 3899 do { 3900 cpu_relax(); 3901 ret = RD_REG_WORD(addr); 3902 ret2 = RD_REG_WORD(addr); 3903 } while (ret != ret2); 3904 3905 return ret; 3906 } 3907 3908 3909 /************************************************************************ 3910 * qla1280_check_for_dead_scsi_bus * 3911 * * 3912 * This routine checks for a dead SCSI bus * 3913 ************************************************************************/ 3914 #define SET_SXP_BANK 0x0100 3915 #define SCSI_PHASE_INVALID 0x87FF 3916 static int 3917 qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus) 3918 { 3919 uint16_t config_reg, scsi_control; 3920 struct device_reg __iomem *reg = ha->iobase; 3921 3922 if (ha->bus_settings[bus].scsi_bus_dead) { 3923 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); 3924 config_reg = RD_REG_WORD(®->cfg_1); 3925 WRT_REG_WORD(®->cfg_1, SET_SXP_BANK); 3926 scsi_control = RD_REG_WORD(®->scsiControlPins); 3927 WRT_REG_WORD(®->cfg_1, config_reg); 3928 WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC); 3929 3930 if (scsi_control == SCSI_PHASE_INVALID) { 3931 ha->bus_settings[bus].scsi_bus_dead = 1; 3932 #if 0 3933 CMD_RESULT(cp) = DID_NO_CONNECT << 16; 3934 CMD_HANDLE(cp) = INVALID_HANDLE; 3935 /* ha->actthreads--; */ 3936 3937 (*(cp)->scsi_done)(cp); 3938 #endif 3939 return 1; /* bus is dead */ 3940 } else { 3941 ha->bus_settings[bus].scsi_bus_dead = 0; 3942 ha->bus_settings[bus].failed_reset_count = 0; 3943 } 3944 } 3945 return 0; /* bus is not dead */ 3946 } 3947 3948 static void 3949 qla1280_get_target_parameters(struct scsi_qla_host *ha, 3950 struct scsi_device *device) 3951 { 3952 uint16_t mb[MAILBOX_REGISTER_COUNT]; 3953 int bus, target, lun; 3954 3955 bus = device->channel; 3956 target = device->id; 3957 lun = device->lun; 3958 3959 3960 mb[0] = MBC_GET_TARGET_PARAMETERS; 3961 mb[1] = (uint16_t) (bus ? target | BIT_7 : target); 3962 mb[1] <<= 8; 3963 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0, 3964 &mb[0]); 3965 3966 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun); 3967 3968 if (mb[3] != 0) { 3969 printk(" Sync: period %d, offset %d", 3970 (mb[3] & 0xff), (mb[3] >> 8)); 3971 if (mb[2] & BIT_13) 3972 printk(", Wide"); 3973 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2) 3974 printk(", DT"); 3975 } else 3976 printk(" Async"); 3977 3978 if (device->simple_tags) 3979 printk(", Tagged queuing: depth %d", device->queue_depth); 3980 printk("\n"); 3981 } 3982 3983 3984 #if DEBUG_QLA1280 3985 static void 3986 __qla1280_dump_buffer(char *b, int size) 3987 { 3988 int cnt; 3989 u8 c; 3990 3991 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah " 3992 "Bh Ch Dh Eh Fh\n"); 3993 printk(KERN_DEBUG "---------------------------------------------" 3994 "------------------\n"); 3995 3996 for (cnt = 0; cnt < size;) { 3997 c = *b++; 3998 3999 printk("0x%02x", c); 4000 cnt++; 4001 if (!(cnt % 16)) 4002 printk("\n"); 4003 else 4004 printk(" "); 4005 } 4006 if (cnt % 16) 4007 printk("\n"); 4008 } 4009 4010 /************************************************************************** 4011 * ql1280_print_scsi_cmd 4012 * 4013 **************************************************************************/ 4014 static void 4015 __qla1280_print_scsi_cmd(struct scsi_cmnd *cmd) 4016 { 4017 struct scsi_qla_host *ha; 4018 struct Scsi_Host *host = CMD_HOST(cmd); 4019 struct srb *sp; 4020 /* struct scatterlist *sg; */ 4021 4022 int i; 4023 ha = (struct scsi_qla_host *)host->hostdata; 4024 4025 sp = (struct srb *)CMD_SP(cmd); 4026 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd)); 4027 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n", 4028 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd), 4029 CMD_CDBLEN(cmd)); 4030 printk(" CDB = "); 4031 for (i = 0; i < cmd->cmd_len; i++) { 4032 printk("0x%02x ", cmd->cmnd[i]); 4033 } 4034 printk(" seg_cnt =%d\n", scsi_sg_count(cmd)); 4035 printk(" request buffer=0x%p, request buffer len=0x%x\n", 4036 scsi_sglist(cmd), scsi_bufflen(cmd)); 4037 /* if (cmd->use_sg) 4038 { 4039 sg = (struct scatterlist *) cmd->request_buffer; 4040 printk(" SG buffer: \n"); 4041 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist))); 4042 } */ 4043 printk(" tag=%d, transfersize=0x%x \n", 4044 cmd->tag, cmd->transfersize); 4045 printk(" Pid=%li, SP=0x%p\n", cmd->serial_number, CMD_SP(cmd)); 4046 printk(" underflow size = 0x%x, direction=0x%x\n", 4047 cmd->underflow, cmd->sc_data_direction); 4048 } 4049 4050 /************************************************************************** 4051 * ql1280_dump_device 4052 * 4053 **************************************************************************/ 4054 static void 4055 ql1280_dump_device(struct scsi_qla_host *ha) 4056 { 4057 4058 struct scsi_cmnd *cp; 4059 struct srb *sp; 4060 int i; 4061 4062 printk(KERN_DEBUG "Outstanding Commands on controller:\n"); 4063 4064 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { 4065 if ((sp = ha->outstanding_cmds[i]) == NULL) 4066 continue; 4067 if ((cp = sp->cmd) == NULL) 4068 continue; 4069 qla1280_print_scsi_cmd(1, cp); 4070 } 4071 } 4072 #endif 4073 4074 4075 enum tokens { 4076 TOKEN_NVRAM, 4077 TOKEN_SYNC, 4078 TOKEN_WIDE, 4079 TOKEN_PPR, 4080 TOKEN_VERBOSE, 4081 TOKEN_DEBUG, 4082 }; 4083 4084 struct setup_tokens { 4085 char *token; 4086 int val; 4087 }; 4088 4089 static struct setup_tokens setup_token[] __initdata = 4090 { 4091 { "nvram", TOKEN_NVRAM }, 4092 { "sync", TOKEN_SYNC }, 4093 { "wide", TOKEN_WIDE }, 4094 { "ppr", TOKEN_PPR }, 4095 { "verbose", TOKEN_VERBOSE }, 4096 { "debug", TOKEN_DEBUG }, 4097 }; 4098 4099 4100 /************************************************************************** 4101 * qla1280_setup 4102 * 4103 * Handle boot parameters. This really needs to be changed so one 4104 * can specify per adapter parameters. 4105 **************************************************************************/ 4106 static int __init 4107 qla1280_setup(char *s) 4108 { 4109 char *cp, *ptr; 4110 unsigned long val; 4111 int toke; 4112 4113 cp = s; 4114 4115 while (cp && (ptr = strchr(cp, ':'))) { 4116 ptr++; 4117 if (!strcmp(ptr, "yes")) { 4118 val = 0x10000; 4119 ptr += 3; 4120 } else if (!strcmp(ptr, "no")) { 4121 val = 0; 4122 ptr += 2; 4123 } else 4124 val = simple_strtoul(ptr, &ptr, 0); 4125 4126 switch ((toke = qla1280_get_token(cp))) { 4127 case TOKEN_NVRAM: 4128 if (!val) 4129 driver_setup.no_nvram = 1; 4130 break; 4131 case TOKEN_SYNC: 4132 if (!val) 4133 driver_setup.no_sync = 1; 4134 else if (val != 0x10000) 4135 driver_setup.sync_mask = val; 4136 break; 4137 case TOKEN_WIDE: 4138 if (!val) 4139 driver_setup.no_wide = 1; 4140 else if (val != 0x10000) 4141 driver_setup.wide_mask = val; 4142 break; 4143 case TOKEN_PPR: 4144 if (!val) 4145 driver_setup.no_ppr = 1; 4146 else if (val != 0x10000) 4147 driver_setup.ppr_mask = val; 4148 break; 4149 case TOKEN_VERBOSE: 4150 qla1280_verbose = val; 4151 break; 4152 default: 4153 printk(KERN_INFO "qla1280: unknown boot option %s\n", 4154 cp); 4155 } 4156 4157 cp = strchr(ptr, ';'); 4158 if (cp) 4159 cp++; 4160 else { 4161 break; 4162 } 4163 } 4164 return 1; 4165 } 4166 4167 4168 static int __init 4169 qla1280_get_token(char *str) 4170 { 4171 char *sep; 4172 long ret = -1; 4173 int i; 4174 4175 sep = strchr(str, ':'); 4176 4177 if (sep) { 4178 for (i = 0; i < ARRAY_SIZE(setup_token); i++) { 4179 if (!strncmp(setup_token[i].token, str, (sep - str))) { 4180 ret = setup_token[i].val; 4181 break; 4182 } 4183 } 4184 } 4185 4186 return ret; 4187 } 4188 4189 4190 static struct scsi_host_template qla1280_driver_template = { 4191 .module = THIS_MODULE, 4192 .proc_name = "qla1280", 4193 .name = "Qlogic ISP 1280/12160", 4194 .info = qla1280_info, 4195 .slave_configure = qla1280_slave_configure, 4196 .queuecommand = qla1280_queuecommand, 4197 .eh_abort_handler = qla1280_eh_abort, 4198 .eh_device_reset_handler= qla1280_eh_device_reset, 4199 .eh_bus_reset_handler = qla1280_eh_bus_reset, 4200 .eh_host_reset_handler = qla1280_eh_adapter_reset, 4201 .bios_param = qla1280_biosparam, 4202 .can_queue = 0xfffff, 4203 .this_id = -1, 4204 .sg_tablesize = SG_ALL, 4205 .cmd_per_lun = 1, 4206 .use_clustering = ENABLE_CLUSTERING, 4207 }; 4208 4209 4210 static int __devinit 4211 qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) 4212 { 4213 int devnum = id->driver_data; 4214 struct qla_boards *bdp = &ql1280_board_tbl[devnum]; 4215 struct Scsi_Host *host; 4216 struct scsi_qla_host *ha; 4217 int error = -ENODEV; 4218 4219 /* Bypass all AMI SUBSYS VENDOR IDs */ 4220 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) { 4221 printk(KERN_INFO 4222 "qla1280: Skipping AMI SubSys Vendor ID Chip\n"); 4223 goto error; 4224 } 4225 4226 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n", 4227 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn)); 4228 4229 if (pci_enable_device(pdev)) { 4230 printk(KERN_WARNING 4231 "qla1280: Failed to enabled pci device, aborting.\n"); 4232 goto error; 4233 } 4234 4235 pci_set_master(pdev); 4236 4237 error = -ENOMEM; 4238 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha)); 4239 if (!host) { 4240 printk(KERN_WARNING 4241 "qla1280: Failed to register host, aborting.\n"); 4242 goto error_disable_device; 4243 } 4244 4245 ha = (struct scsi_qla_host *)host->hostdata; 4246 memset(ha, 0, sizeof(struct scsi_qla_host)); 4247 4248 ha->pdev = pdev; 4249 ha->devnum = devnum; /* specifies microcode load address */ 4250 4251 #ifdef QLA_64BIT_PTR 4252 if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK)) { 4253 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) { 4254 printk(KERN_WARNING "scsi(%li): Unable to set a " 4255 "suitable DMA mask - aborting\n", ha->host_no); 4256 error = -ENODEV; 4257 goto error_put_host; 4258 } 4259 } else 4260 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n", 4261 ha->host_no); 4262 #else 4263 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) { 4264 printk(KERN_WARNING "scsi(%li): Unable to set a " 4265 "suitable DMA mask - aborting\n", ha->host_no); 4266 error = -ENODEV; 4267 goto error_put_host; 4268 } 4269 #endif 4270 4271 ha->request_ring = pci_alloc_consistent(ha->pdev, 4272 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)), 4273 &ha->request_dma); 4274 if (!ha->request_ring) { 4275 printk(KERN_INFO "qla1280: Failed to get request memory\n"); 4276 goto error_put_host; 4277 } 4278 4279 ha->response_ring = pci_alloc_consistent(ha->pdev, 4280 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)), 4281 &ha->response_dma); 4282 if (!ha->response_ring) { 4283 printk(KERN_INFO "qla1280: Failed to get response memory\n"); 4284 goto error_free_request_ring; 4285 } 4286 4287 ha->ports = bdp->numPorts; 4288 4289 ha->host = host; 4290 ha->host_no = host->host_no; 4291 4292 host->irq = pdev->irq; 4293 host->max_channel = bdp->numPorts - 1; 4294 host->max_lun = MAX_LUNS - 1; 4295 host->max_id = MAX_TARGETS; 4296 host->max_sectors = 1024; 4297 host->unique_id = host->host_no; 4298 4299 error = -ENODEV; 4300 4301 #if MEMORY_MAPPED_IO 4302 ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1), 4303 pci_resource_len(ha->pdev, 1)); 4304 if (!ha->mmpbase) { 4305 printk(KERN_INFO "qla1280: Unable to map I/O memory\n"); 4306 goto error_free_response_ring; 4307 } 4308 4309 host->base = (unsigned long)ha->mmpbase; 4310 ha->iobase = (struct device_reg __iomem *)ha->mmpbase; 4311 #else 4312 host->io_port = pci_resource_start(ha->pdev, 0); 4313 if (!request_region(host->io_port, 0xff, "qla1280")) { 4314 printk(KERN_INFO "qla1280: Failed to reserve i/o region " 4315 "0x%04lx-0x%04lx - already in use\n", 4316 host->io_port, host->io_port + 0xff); 4317 goto error_free_response_ring; 4318 } 4319 4320 ha->iobase = (struct device_reg *)host->io_port; 4321 #endif 4322 4323 INIT_LIST_HEAD(&ha->done_q); 4324 4325 /* Disable ISP interrupts. */ 4326 qla1280_disable_intrs(ha); 4327 4328 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED, 4329 "qla1280", ha)) { 4330 printk("qla1280 : Failed to reserve interrupt %d already " 4331 "in use\n", pdev->irq); 4332 goto error_release_region; 4333 } 4334 4335 /* load the F/W, read paramaters, and init the H/W */ 4336 if (qla1280_initialize_adapter(ha)) { 4337 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n"); 4338 goto error_free_irq; 4339 } 4340 4341 /* set our host ID (need to do something about our two IDs) */ 4342 host->this_id = ha->bus_settings[0].id; 4343 4344 pci_set_drvdata(pdev, host); 4345 4346 error = scsi_add_host(host, &pdev->dev); 4347 if (error) 4348 goto error_disable_adapter; 4349 scsi_scan_host(host); 4350 4351 return 0; 4352 4353 error_disable_adapter: 4354 qla1280_disable_intrs(ha); 4355 error_free_irq: 4356 free_irq(pdev->irq, ha); 4357 error_release_region: 4358 #if MEMORY_MAPPED_IO 4359 iounmap(ha->mmpbase); 4360 #else 4361 release_region(host->io_port, 0xff); 4362 #endif 4363 error_free_response_ring: 4364 pci_free_consistent(ha->pdev, 4365 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)), 4366 ha->response_ring, ha->response_dma); 4367 error_free_request_ring: 4368 pci_free_consistent(ha->pdev, 4369 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)), 4370 ha->request_ring, ha->request_dma); 4371 error_put_host: 4372 scsi_host_put(host); 4373 error_disable_device: 4374 pci_disable_device(pdev); 4375 error: 4376 return error; 4377 } 4378 4379 4380 static void __devexit 4381 qla1280_remove_one(struct pci_dev *pdev) 4382 { 4383 struct Scsi_Host *host = pci_get_drvdata(pdev); 4384 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; 4385 4386 scsi_remove_host(host); 4387 4388 qla1280_disable_intrs(ha); 4389 4390 free_irq(pdev->irq, ha); 4391 4392 #if MEMORY_MAPPED_IO 4393 iounmap(ha->mmpbase); 4394 #else 4395 release_region(host->io_port, 0xff); 4396 #endif 4397 4398 pci_free_consistent(ha->pdev, 4399 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))), 4400 ha->request_ring, ha->request_dma); 4401 pci_free_consistent(ha->pdev, 4402 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))), 4403 ha->response_ring, ha->response_dma); 4404 4405 pci_disable_device(pdev); 4406 4407 scsi_host_put(host); 4408 } 4409 4410 static struct pci_driver qla1280_pci_driver = { 4411 .name = "qla1280", 4412 .id_table = qla1280_pci_tbl, 4413 .probe = qla1280_probe_one, 4414 .remove = __devexit_p(qla1280_remove_one), 4415 }; 4416 4417 static int __init 4418 qla1280_init(void) 4419 { 4420 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) { 4421 printk(KERN_WARNING 4422 "qla1280: struct srb too big, aborting\n"); 4423 return -EINVAL; 4424 } 4425 4426 #ifdef MODULE 4427 /* 4428 * If we are called as a module, the qla1280 pointer may not be null 4429 * and it would point to our bootup string, just like on the lilo 4430 * command line. IF not NULL, then process this config string with 4431 * qla1280_setup 4432 * 4433 * Boot time Options 4434 * To add options at boot time add a line to your lilo.conf file like: 4435 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}" 4436 * which will result in the first four devices on the first two 4437 * controllers being set to a tagged queue depth of 32. 4438 */ 4439 if (qla1280) 4440 qla1280_setup(qla1280); 4441 #endif 4442 4443 return pci_register_driver(&qla1280_pci_driver); 4444 } 4445 4446 static void __exit 4447 qla1280_exit(void) 4448 { 4449 pci_unregister_driver(&qla1280_pci_driver); 4450 } 4451 4452 module_init(qla1280_init); 4453 module_exit(qla1280_exit); 4454 4455 4456 MODULE_AUTHOR("Qlogic & Jes Sorensen"); 4457 MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver"); 4458 MODULE_LICENSE("GPL"); 4459 MODULE_VERSION(QLA1280_VERSION); 4460 4461 /* 4462 * Overrides for Emacs so that we almost follow Linus's tabbing style. 4463 * Emacs will notice this stuff at the end of the file and automatically 4464 * adjust the settings for this buffer only. This must remain at the end 4465 * of the file. 4466 * --------------------------------------------------------------------------- 4467 * Local variables: 4468 * c-basic-offset: 8 4469 * tab-width: 8 4470 * End: 4471 */ 4472