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/sched.h> 345 #include <linux/pci.h> 346 #include <linux/proc_fs.h> 347 #include <linux/stat.h> 348 #include <linux/slab.h> 349 #include <linux/pci_ids.h> 350 #include <linux/interrupt.h> 351 #include <linux/init.h> 352 #include <linux/dma-mapping.h> 353 354 #include <asm/io.h> 355 #include <asm/irq.h> 356 #include <asm/byteorder.h> 357 #include <asm/processor.h> 358 #include <asm/types.h> 359 #include <asm/system.h> 360 361 #include <scsi/scsi.h> 362 #include <scsi/scsi_cmnd.h> 363 #include <scsi/scsi_device.h> 364 #include <scsi/scsi_host.h> 365 #include <scsi/scsi_tcq.h> 366 367 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 368 #include <asm/sn/io.h> 369 #endif 370 371 #if LINUX_VERSION_CODE < 0x020600 372 #error "Kernels older than 2.6.0 are no longer supported" 373 #endif 374 375 376 /* 377 * Compile time Options: 378 * 0 - Disable and 1 - Enable 379 */ 380 #define DEBUG_QLA1280_INTR 0 381 #define DEBUG_PRINT_NVRAM 0 382 #define DEBUG_QLA1280 0 383 384 /* 385 * The SGI VISWS is broken and doesn't support MMIO ;-( 386 */ 387 #ifdef CONFIG_X86_VISWS 388 #define MEMORY_MAPPED_IO 0 389 #else 390 #define MEMORY_MAPPED_IO 1 391 #endif 392 393 #define UNIQUE_FW_NAME 394 #include "qla1280.h" 395 #include "ql12160_fw.h" /* ISP RISC codes */ 396 #include "ql1280_fw.h" 397 #include "ql1040_fw.h" 398 399 #ifndef BITS_PER_LONG 400 #error "BITS_PER_LONG not defined!" 401 #endif 402 #if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM 403 #define QLA_64BIT_PTR 1 404 #endif 405 406 #ifdef QLA_64BIT_PTR 407 #define pci_dma_hi32(a) ((a >> 16) >> 16) 408 #else 409 #define pci_dma_hi32(a) 0 410 #endif 411 #define pci_dma_lo32(a) (a & 0xffffffff) 412 413 #define NVRAM_DELAY() udelay(500) /* 2 microseconds */ 414 415 #if defined(__ia64__) && !defined(ia64_platform_is) 416 #define ia64_platform_is(foo) (!strcmp(x, platform_name)) 417 #endif 418 419 420 #define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020) 421 #define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \ 422 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240) 423 #define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \ 424 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160) 425 426 427 static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *); 428 static void qla1280_remove_one(struct pci_dev *); 429 430 /* 431 * QLogic Driver Support Function Prototypes. 432 */ 433 static void qla1280_done(struct scsi_qla_host *); 434 static int qla1280_get_token(char *); 435 static int qla1280_setup(char *s) __init; 436 437 /* 438 * QLogic ISP1280 Hardware Support Function Prototypes. 439 */ 440 static int qla1280_load_firmware(struct scsi_qla_host *); 441 static int qla1280_init_rings(struct scsi_qla_host *); 442 static int qla1280_nvram_config(struct scsi_qla_host *); 443 static int qla1280_mailbox_command(struct scsi_qla_host *, 444 uint8_t, uint16_t *); 445 static int qla1280_bus_reset(struct scsi_qla_host *, int); 446 static int qla1280_device_reset(struct scsi_qla_host *, int, int); 447 static int qla1280_abort_device(struct scsi_qla_host *, int, int, int); 448 static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int); 449 static int qla1280_abort_isp(struct scsi_qla_host *); 450 #ifdef QLA_64BIT_PTR 451 static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *); 452 #else 453 static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *); 454 #endif 455 static void qla1280_nv_write(struct scsi_qla_host *, uint16_t); 456 static void qla1280_poll(struct scsi_qla_host *); 457 static void qla1280_reset_adapter(struct scsi_qla_host *); 458 static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8); 459 static void qla1280_isp_cmd(struct scsi_qla_host *); 460 static void qla1280_isr(struct scsi_qla_host *, struct list_head *); 461 static void qla1280_rst_aen(struct scsi_qla_host *); 462 static void qla1280_status_entry(struct scsi_qla_host *, struct response *, 463 struct list_head *); 464 static void qla1280_error_entry(struct scsi_qla_host *, struct response *, 465 struct list_head *); 466 static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t); 467 static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t); 468 static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *); 469 static request_t *qla1280_req_pkt(struct scsi_qla_host *); 470 static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *, 471 unsigned int); 472 static void qla1280_get_target_parameters(struct scsi_qla_host *, 473 struct scsi_device *); 474 static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int); 475 476 477 static struct qla_driver_setup driver_setup; 478 479 /* 480 * convert scsi data direction to request_t control flags 481 */ 482 static inline uint16_t 483 qla1280_data_direction(struct scsi_cmnd *cmnd) 484 { 485 switch(cmnd->sc_data_direction) { 486 case DMA_FROM_DEVICE: 487 return BIT_5; 488 case DMA_TO_DEVICE: 489 return BIT_6; 490 case DMA_BIDIRECTIONAL: 491 return BIT_5 | BIT_6; 492 /* 493 * We could BUG() on default here if one of the four cases aren't 494 * met, but then again if we receive something like that from the 495 * SCSI layer we have more serious problems. This shuts up GCC. 496 */ 497 case DMA_NONE: 498 default: 499 return 0; 500 } 501 } 502 503 #if DEBUG_QLA1280 504 static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd); 505 static void __qla1280_dump_buffer(char *, int); 506 #endif 507 508 509 /* 510 * insmod needs to find the variable and make it point to something 511 */ 512 #ifdef MODULE 513 static char *qla1280; 514 515 /* insmod qla1280 options=verbose" */ 516 module_param(qla1280, charp, 0); 517 #else 518 __setup("qla1280=", qla1280_setup); 519 #endif 520 521 522 /* 523 * We use the scsi_pointer structure that's included with each scsi_command 524 * to overlay our struct srb over it. qla1280_init() checks that a srb is not 525 * bigger than a scsi_pointer. 526 */ 527 528 #define CMD_SP(Cmnd) &Cmnd->SCp 529 #define CMD_CDBLEN(Cmnd) Cmnd->cmd_len 530 #define CMD_CDBP(Cmnd) Cmnd->cmnd 531 #define CMD_SNSP(Cmnd) Cmnd->sense_buffer 532 #define CMD_SNSLEN(Cmnd) sizeof(Cmnd->sense_buffer) 533 #define CMD_RESULT(Cmnd) Cmnd->result 534 #define CMD_HANDLE(Cmnd) Cmnd->host_scribble 535 #define CMD_REQUEST(Cmnd) Cmnd->request->cmd 536 537 #define CMD_HOST(Cmnd) Cmnd->device->host 538 #define SCSI_BUS_32(Cmnd) Cmnd->device->channel 539 #define SCSI_TCN_32(Cmnd) Cmnd->device->id 540 #define SCSI_LUN_32(Cmnd) Cmnd->device->lun 541 542 543 /*****************************************/ 544 /* ISP Boards supported by this driver */ 545 /*****************************************/ 546 547 struct qla_boards { 548 unsigned char name[9]; /* Board ID String */ 549 int numPorts; /* Number of SCSI ports */ 550 unsigned short *fwcode; /* pointer to FW array */ 551 unsigned short *fwlen; /* number of words in array */ 552 unsigned short *fwstart; /* start address for F/W */ 553 unsigned char *fwver; /* Ptr to F/W version array */ 554 }; 555 556 /* NOTE: the last argument in each entry is used to index ql1280_board_tbl */ 557 static struct pci_device_id qla1280_pci_tbl[] = { 558 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160, 559 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 560 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020, 561 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, 562 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080, 563 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, 564 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240, 565 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, 566 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280, 567 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, 568 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160, 569 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5}, 570 {0,} 571 }; 572 MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl); 573 574 static struct qla_boards ql1280_board_tbl[] = { 575 /* Name , Number of ports, FW details */ 576 {"QLA12160", 2, &fw12160i_code01[0], &fw12160i_length01, 577 &fw12160i_addr01, &fw12160i_version_str[0]}, 578 {"QLA1040", 1, &risc_code01[0], &risc_code_length01, 579 &risc_code_addr01, &firmware_version[0]}, 580 {"QLA1080", 1, &fw1280ei_code01[0], &fw1280ei_length01, 581 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 582 {"QLA1240", 2, &fw1280ei_code01[0], &fw1280ei_length01, 583 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 584 {"QLA1280", 2, &fw1280ei_code01[0], &fw1280ei_length01, 585 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 586 {"QLA10160", 1, &fw12160i_code01[0], &fw12160i_length01, 587 &fw12160i_addr01, &fw12160i_version_str[0]}, 588 {" ", 0} 589 }; 590 591 static int qla1280_verbose = 1; 592 593 #if DEBUG_QLA1280 594 static int ql_debug_level = 1; 595 #define dprintk(level, format, a...) \ 596 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0) 597 #define qla1280_dump_buffer(level, buf, size) \ 598 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size) 599 #define qla1280_print_scsi_cmd(level, cmd) \ 600 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd) 601 #else 602 #define ql_debug_level 0 603 #define dprintk(level, format, a...) do{}while(0) 604 #define qla1280_dump_buffer(a, b, c) do{}while(0) 605 #define qla1280_print_scsi_cmd(a, b) do{}while(0) 606 #endif 607 608 #define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x); 609 #define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x); 610 #define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x); 611 #define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x); 612 613 614 static int qla1280_read_nvram(struct scsi_qla_host *ha) 615 { 616 uint16_t *wptr; 617 uint8_t chksum; 618 int cnt, i; 619 struct nvram *nv; 620 621 ENTER("qla1280_read_nvram"); 622 623 if (driver_setup.no_nvram) 624 return 1; 625 626 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no); 627 628 wptr = (uint16_t *)&ha->nvram; 629 nv = &ha->nvram; 630 chksum = 0; 631 for (cnt = 0; cnt < 3; cnt++) { 632 *wptr = qla1280_get_nvram_word(ha, cnt); 633 chksum += *wptr & 0xff; 634 chksum += (*wptr >> 8) & 0xff; 635 wptr++; 636 } 637 638 if (nv->id0 != 'I' || nv->id1 != 'S' || 639 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) { 640 dprintk(2, "Invalid nvram ID or version!\n"); 641 chksum = 1; 642 } else { 643 for (; cnt < sizeof(struct nvram); cnt++) { 644 *wptr = qla1280_get_nvram_word(ha, cnt); 645 chksum += *wptr & 0xff; 646 chksum += (*wptr >> 8) & 0xff; 647 wptr++; 648 } 649 } 650 651 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x" 652 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3, 653 nv->version); 654 655 656 if (chksum) { 657 if (!driver_setup.no_nvram) 658 printk(KERN_WARNING "scsi(%ld): Unable to identify or " 659 "validate NVRAM checksum, using default " 660 "settings\n", ha->host_no); 661 ha->nvram_valid = 0; 662 } else 663 ha->nvram_valid = 1; 664 665 /* The firmware interface is, um, interesting, in that the 666 * actual firmware image on the chip is little endian, thus, 667 * the process of taking that image to the CPU would end up 668 * little endian. However, the firmare interface requires it 669 * to be read a word (two bytes) at a time. 670 * 671 * The net result of this would be that the word (and 672 * doubleword) quantites in the firmware would be correct, but 673 * the bytes would be pairwise reversed. Since most of the 674 * firmware quantites are, in fact, bytes, we do an extra 675 * le16_to_cpu() in the firmware read routine. 676 * 677 * The upshot of all this is that the bytes in the firmware 678 * are in the correct places, but the 16 and 32 bit quantites 679 * are still in little endian format. We fix that up below by 680 * doing extra reverses on them */ 681 nv->isp_parameter = cpu_to_le16(nv->isp_parameter); 682 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w); 683 for(i = 0; i < MAX_BUSES; i++) { 684 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout); 685 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth); 686 } 687 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n"); 688 LEAVE("qla1280_read_nvram"); 689 690 return chksum; 691 } 692 693 /************************************************************************** 694 * qla1280_info 695 * Return a string describing the driver. 696 **************************************************************************/ 697 static const char * 698 qla1280_info(struct Scsi_Host *host) 699 { 700 static char qla1280_scsi_name_buffer[125]; 701 char *bp; 702 struct scsi_qla_host *ha; 703 struct qla_boards *bdp; 704 705 bp = &qla1280_scsi_name_buffer[0]; 706 ha = (struct scsi_qla_host *)host->hostdata; 707 bdp = &ql1280_board_tbl[ha->devnum]; 708 memset(bp, 0, sizeof(qla1280_scsi_name_buffer)); 709 710 sprintf (bp, 711 "QLogic %s PCI to SCSI Host Adapter\n" 712 " Firmware version: %2d.%02d.%02d, Driver version %s", 713 &bdp->name[0], bdp->fwver[0], bdp->fwver[1], bdp->fwver[2], 714 QLA1280_VERSION); 715 return bp; 716 } 717 718 /************************************************************************** 719 * qla1200_queuecommand 720 * Queue a command to the controller. 721 * 722 * Note: 723 * The mid-level driver tries to ensures that queuecommand never gets invoked 724 * concurrently with itself or the interrupt handler (although the 725 * interrupt handler may call this routine as part of request-completion 726 * handling). Unfortunely, it sometimes calls the scheduler in interrupt 727 * context which is a big NO! NO!. 728 **************************************************************************/ 729 static int 730 qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)) 731 { 732 struct Scsi_Host *host = cmd->device->host; 733 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; 734 struct srb *sp = (struct srb *)&cmd->SCp; 735 int status; 736 737 cmd->scsi_done = fn; 738 sp->cmd = cmd; 739 sp->flags = 0; 740 741 qla1280_print_scsi_cmd(5, cmd); 742 743 #ifdef QLA_64BIT_PTR 744 /* 745 * Using 64 bit commands if the PCI bridge doesn't support it is a 746 * bit wasteful, however this should really only happen if one's 747 * PCI controller is completely broken, like the BCM1250. For 748 * sane hardware this is not an issue. 749 */ 750 status = qla1280_64bit_start_scsi(ha, sp); 751 #else 752 status = qla1280_32bit_start_scsi(ha, sp); 753 #endif 754 return status; 755 } 756 757 enum action { 758 ABORT_COMMAND, 759 ABORT_DEVICE, 760 DEVICE_RESET, 761 BUS_RESET, 762 ADAPTER_RESET, 763 FAIL 764 }; 765 766 /* timer action for error action processor */ 767 static void qla1280_error_wait_timeout(unsigned long __data) 768 { 769 struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data; 770 struct srb *sp = (struct srb *)CMD_SP(cmd); 771 772 complete(sp->wait); 773 } 774 775 static void qla1280_mailbox_timeout(unsigned long __data) 776 { 777 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data; 778 struct device_reg __iomem *reg; 779 reg = ha->iobase; 780 781 ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0); 782 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, " 783 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0], 784 RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus)); 785 complete(ha->mailbox_wait); 786 } 787 788 /************************************************************************** 789 * qla1200_error_action 790 * The function will attempt to perform a specified error action and 791 * wait for the results (or time out). 792 * 793 * Input: 794 * cmd = Linux SCSI command packet of the command that cause the 795 * bus reset. 796 * action = error action to take (see action_t) 797 * 798 * Returns: 799 * SUCCESS or FAILED 800 * 801 * Note: 802 * Resetting the bus always succeeds - is has to, otherwise the 803 * kernel will panic! Try a surgical technique - sending a BUS 804 * DEVICE RESET message - on the offending target before pulling 805 * the SCSI bus reset line. 806 **************************************************************************/ 807 static int 808 qla1280_error_action(struct scsi_cmnd *cmd, enum action action) 809 { 810 struct scsi_qla_host *ha; 811 int bus, target, lun; 812 struct srb *sp; 813 uint16_t data; 814 unsigned char *handle; 815 int result, i; 816 DECLARE_COMPLETION(wait); 817 struct timer_list timer; 818 819 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata); 820 821 dprintk(4, "error_action %i, istatus 0x%04x\n", action, 822 RD_REG_WORD(&ha->iobase->istatus)); 823 824 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n", 825 RD_REG_WORD(&ha->iobase->host_cmd), 826 RD_REG_WORD(&ha->iobase->ictrl), jiffies); 827 828 ENTER("qla1280_error_action"); 829 if (qla1280_verbose) 830 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, " 831 "Handle=0x%p, action=0x%x\n", 832 ha->host_no, cmd, CMD_HANDLE(cmd), action); 833 834 if (cmd == NULL) { 835 printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL " 836 "si_Cmnd pointer, failing.\n"); 837 LEAVE("qla1280_error_action"); 838 return FAILED; 839 } 840 841 ha = (struct scsi_qla_host *)cmd->device->host->hostdata; 842 sp = (struct srb *)CMD_SP(cmd); 843 handle = CMD_HANDLE(cmd); 844 845 /* Check for pending interrupts. */ 846 data = qla1280_debounce_register(&ha->iobase->istatus); 847 /* 848 * The io_request_lock is held when the reset handler is called, hence 849 * the interrupt handler cannot be running in parallel as it also 850 * grabs the lock. /Jes 851 */ 852 if (data & RISC_INT) 853 qla1280_isr(ha, &ha->done_q); 854 855 /* 856 * Determine the suggested action that the mid-level driver wants 857 * us to perform. 858 */ 859 if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) { 860 if(action == ABORT_COMMAND) { 861 /* we never got this command */ 862 printk(KERN_INFO "qla1280: Aborting a NULL handle\n"); 863 return SUCCESS; /* no action - we don't have command */ 864 } 865 } else { 866 sp->wait = &wait; 867 } 868 869 bus = SCSI_BUS_32(cmd); 870 target = SCSI_TCN_32(cmd); 871 lun = SCSI_LUN_32(cmd); 872 873 /* Overloading result. Here it means the success or fail of the 874 * *issue* of the action. When we return from the routine, it must 875 * mean the actual success or fail of the action */ 876 result = FAILED; 877 switch (action) { 878 case FAIL: 879 break; 880 881 case ABORT_COMMAND: 882 if ((sp->flags & SRB_ABORT_PENDING)) { 883 printk(KERN_WARNING 884 "scsi(): Command has a pending abort " 885 "message - ABORT_PENDING.\n"); 886 /* This should technically be impossible since we 887 * now wait for abort completion */ 888 break; 889 } 890 891 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { 892 if (sp == ha->outstanding_cmds[i]) { 893 dprintk(1, "qla1280: RISC aborting command\n"); 894 if (qla1280_abort_command(ha, sp, i) == 0) 895 result = SUCCESS; 896 else { 897 /* 898 * Since we don't know what might 899 * have happend to the command, it 900 * is unsafe to remove it from the 901 * device's queue at this point. 902 * Wait and let the escalation 903 * process take care of it. 904 */ 905 printk(KERN_WARNING 906 "scsi(%li:%i:%i:%i): Unable" 907 " to abort command!\n", 908 ha->host_no, bus, target, lun); 909 } 910 } 911 } 912 break; 913 914 case ABORT_DEVICE: 915 if (qla1280_verbose) 916 printk(KERN_INFO 917 "scsi(%ld:%d:%d:%d): Queueing abort device " 918 "command.\n", ha->host_no, bus, target, lun); 919 if (qla1280_abort_device(ha, bus, target, lun) == 0) 920 result = SUCCESS; 921 break; 922 923 case DEVICE_RESET: 924 if (qla1280_verbose) 925 printk(KERN_INFO 926 "scsi(%ld:%d:%d:%d): Queueing device reset " 927 "command.\n", ha->host_no, bus, target, lun); 928 if (qla1280_device_reset(ha, bus, target) == 0) 929 result = SUCCESS; 930 break; 931 932 case BUS_RESET: 933 if (qla1280_verbose) 934 printk(KERN_INFO "qla1280(%ld:%d): Issuing BUS " 935 "DEVICE RESET\n", ha->host_no, bus); 936 if (qla1280_bus_reset(ha, bus == 0)) 937 result = SUCCESS; 938 939 break; 940 941 case ADAPTER_RESET: 942 default: 943 if (qla1280_verbose) { 944 printk(KERN_INFO 945 "scsi(%ld): Issued ADAPTER RESET\n", 946 ha->host_no); 947 printk(KERN_INFO "scsi(%ld): I/O processing will " 948 "continue automatically\n", ha->host_no); 949 } 950 ha->flags.reset_active = 1; 951 /* 952 * We restarted all of the commands automatically, so the 953 * mid-level code can expect completions momentitarily. 954 */ 955 if (qla1280_abort_isp(ha) == 0) 956 result = SUCCESS; 957 958 ha->flags.reset_active = 0; 959 } 960 961 if (!list_empty(&ha->done_q)) 962 qla1280_done(ha); 963 964 /* If we didn't manage to issue the action, or we have no 965 * command to wait for, exit here */ 966 if (result == FAILED || handle == NULL || 967 handle == (unsigned char *)INVALID_HANDLE) { 968 /* 969 * Clear completion queue to avoid qla1280_done() trying 970 * to complete the command at a later stage after we 971 * have exited the current context 972 */ 973 sp->wait = NULL; 974 goto leave; 975 } 976 977 /* set up a timer just in case we're really jammed */ 978 init_timer(&timer); 979 timer.expires = jiffies + 4*HZ; 980 timer.data = (unsigned long)cmd; 981 timer.function = qla1280_error_wait_timeout; 982 add_timer(&timer); 983 984 /* wait for the action to complete (or the timer to expire) */ 985 spin_unlock_irq(ha->host->host_lock); 986 wait_for_completion(&wait); 987 del_timer_sync(&timer); 988 spin_lock_irq(ha->host->host_lock); 989 sp->wait = NULL; 990 991 /* the only action we might get a fail for is abort */ 992 if (action == ABORT_COMMAND) { 993 if(sp->flags & SRB_ABORTED) 994 result = SUCCESS; 995 else 996 result = FAILED; 997 } 998 999 leave: 1000 dprintk(1, "RESET returning %d\n", result); 1001 1002 LEAVE("qla1280_error_action"); 1003 return result; 1004 } 1005 1006 /************************************************************************** 1007 * qla1280_abort 1008 * Abort the specified SCSI command(s). 1009 **************************************************************************/ 1010 static int 1011 qla1280_eh_abort(struct scsi_cmnd * cmd) 1012 { 1013 int rc; 1014 1015 spin_lock_irq(cmd->device->host->host_lock); 1016 rc = qla1280_error_action(cmd, ABORT_COMMAND); 1017 spin_unlock_irq(cmd->device->host->host_lock); 1018 1019 return rc; 1020 } 1021 1022 /************************************************************************** 1023 * qla1280_device_reset 1024 * Reset the specified SCSI device 1025 **************************************************************************/ 1026 static int 1027 qla1280_eh_device_reset(struct scsi_cmnd *cmd) 1028 { 1029 int rc; 1030 1031 spin_lock_irq(cmd->device->host->host_lock); 1032 rc = qla1280_error_action(cmd, DEVICE_RESET); 1033 spin_unlock_irq(cmd->device->host->host_lock); 1034 1035 return rc; 1036 } 1037 1038 /************************************************************************** 1039 * qla1280_bus_reset 1040 * Reset the specified bus. 1041 **************************************************************************/ 1042 static int 1043 qla1280_eh_bus_reset(struct scsi_cmnd *cmd) 1044 { 1045 int rc; 1046 1047 spin_lock_irq(cmd->device->host->host_lock); 1048 rc = qla1280_error_action(cmd, BUS_RESET); 1049 spin_unlock_irq(cmd->device->host->host_lock); 1050 1051 return rc; 1052 } 1053 1054 /************************************************************************** 1055 * qla1280_adapter_reset 1056 * Reset the specified adapter (both channels) 1057 **************************************************************************/ 1058 static int 1059 qla1280_eh_adapter_reset(struct scsi_cmnd *cmd) 1060 { 1061 int rc; 1062 1063 spin_lock_irq(cmd->device->host->host_lock); 1064 rc = qla1280_error_action(cmd, ADAPTER_RESET); 1065 spin_unlock_irq(cmd->device->host->host_lock); 1066 1067 return rc; 1068 } 1069 1070 static int 1071 qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev, 1072 sector_t capacity, int geom[]) 1073 { 1074 int heads, sectors, cylinders; 1075 1076 heads = 64; 1077 sectors = 32; 1078 cylinders = (unsigned long)capacity / (heads * sectors); 1079 if (cylinders > 1024) { 1080 heads = 255; 1081 sectors = 63; 1082 cylinders = (unsigned long)capacity / (heads * sectors); 1083 /* if (cylinders > 1023) 1084 cylinders = 1023; */ 1085 } 1086 1087 geom[0] = heads; 1088 geom[1] = sectors; 1089 geom[2] = cylinders; 1090 1091 return 0; 1092 } 1093 1094 1095 /* disable risc and host interrupts */ 1096 static inline void 1097 qla1280_disable_intrs(struct scsi_qla_host *ha) 1098 { 1099 WRT_REG_WORD(&ha->iobase->ictrl, 0); 1100 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */ 1101 } 1102 1103 /* enable risc and host interrupts */ 1104 static inline void 1105 qla1280_enable_intrs(struct scsi_qla_host *ha) 1106 { 1107 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC)); 1108 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */ 1109 } 1110 1111 /************************************************************************** 1112 * qla1280_intr_handler 1113 * Handles the H/W interrupt 1114 **************************************************************************/ 1115 static irqreturn_t 1116 qla1280_intr_handler(int irq, void *dev_id, struct pt_regs *regs) 1117 { 1118 struct scsi_qla_host *ha; 1119 struct device_reg __iomem *reg; 1120 u16 data; 1121 int handled = 0; 1122 1123 ENTER_INTR ("qla1280_intr_handler"); 1124 ha = (struct scsi_qla_host *)dev_id; 1125 1126 spin_lock(ha->host->host_lock); 1127 1128 ha->isr_count++; 1129 reg = ha->iobase; 1130 1131 qla1280_disable_intrs(ha); 1132 1133 data = qla1280_debounce_register(®->istatus); 1134 /* Check for pending interrupts. */ 1135 if (data & RISC_INT) { 1136 qla1280_isr(ha, &ha->done_q); 1137 handled = 1; 1138 } 1139 if (!list_empty(&ha->done_q)) 1140 qla1280_done(ha); 1141 1142 spin_unlock(ha->host->host_lock); 1143 1144 qla1280_enable_intrs(ha); 1145 1146 LEAVE_INTR("qla1280_intr_handler"); 1147 return IRQ_RETVAL(handled); 1148 } 1149 1150 1151 static int 1152 qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target) 1153 { 1154 uint8_t mr; 1155 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1156 struct nvram *nv; 1157 int status, lun; 1158 1159 nv = &ha->nvram; 1160 1161 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0; 1162 1163 /* Set Target Parameters. */ 1164 mb[0] = MBC_SET_TARGET_PARAMETERS; 1165 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 1166 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8; 1167 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9; 1168 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10; 1169 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11; 1170 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12; 1171 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13; 1172 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14; 1173 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15; 1174 1175 if (IS_ISP1x160(ha)) { 1176 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5; 1177 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8); 1178 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) | 1179 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width; 1180 mr |= BIT_6; 1181 } else { 1182 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8); 1183 } 1184 mb[3] |= nv->bus[bus].target[target].sync_period; 1185 1186 status = qla1280_mailbox_command(ha, mr, mb); 1187 1188 /* Set Device Queue Parameters. */ 1189 for (lun = 0; lun < MAX_LUNS; lun++) { 1190 mb[0] = MBC_SET_DEVICE_QUEUE; 1191 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 1192 mb[1] |= lun; 1193 mb[2] = nv->bus[bus].max_queue_depth; 1194 mb[3] = nv->bus[bus].target[target].execution_throttle; 1195 status |= qla1280_mailbox_command(ha, 0x0f, mb); 1196 } 1197 1198 if (status) 1199 printk(KERN_WARNING "scsi(%ld:%i:%i): " 1200 "qla1280_set_target_parameters() failed\n", 1201 ha->host_no, bus, target); 1202 return status; 1203 } 1204 1205 1206 /************************************************************************** 1207 * qla1280_slave_configure 1208 * 1209 * Description: 1210 * Determines the queue depth for a given device. There are two ways 1211 * a queue depth can be obtained for a tagged queueing device. One 1212 * way is the default queue depth which is determined by whether 1213 * If it is defined, then it is used 1214 * as the default queue depth. Otherwise, we use either 4 or 8 as the 1215 * default queue depth (dependent on the number of hardware SCBs). 1216 **************************************************************************/ 1217 static int 1218 qla1280_slave_configure(struct scsi_device *device) 1219 { 1220 struct scsi_qla_host *ha; 1221 int default_depth = 3; 1222 int bus = device->channel; 1223 int target = device->id; 1224 int status = 0; 1225 struct nvram *nv; 1226 unsigned long flags; 1227 1228 ha = (struct scsi_qla_host *)device->host->hostdata; 1229 nv = &ha->nvram; 1230 1231 if (qla1280_check_for_dead_scsi_bus(ha, bus)) 1232 return 1; 1233 1234 if (device->tagged_supported && 1235 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { 1236 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG, 1237 ha->bus_settings[bus].hiwat); 1238 } else { 1239 scsi_adjust_queue_depth(device, 0, default_depth); 1240 } 1241 1242 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr; 1243 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr; 1244 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr; 1245 1246 if (driver_setup.no_sync || 1247 (driver_setup.sync_mask && 1248 (~driver_setup.sync_mask & (1 << target)))) 1249 nv->bus[bus].target[target].parameter.enable_sync = 0; 1250 if (driver_setup.no_wide || 1251 (driver_setup.wide_mask && 1252 (~driver_setup.wide_mask & (1 << target)))) 1253 nv->bus[bus].target[target].parameter.enable_wide = 0; 1254 if (IS_ISP1x160(ha)) { 1255 if (driver_setup.no_ppr || 1256 (driver_setup.ppr_mask && 1257 (~driver_setup.ppr_mask & (1 << target)))) 1258 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0; 1259 } 1260 1261 spin_lock_irqsave(ha->host->host_lock, flags); 1262 if (nv->bus[bus].target[target].parameter.enable_sync) 1263 status = qla1280_set_target_parameters(ha, bus, target); 1264 qla1280_get_target_parameters(ha, device); 1265 spin_unlock_irqrestore(ha->host->host_lock, flags); 1266 return status; 1267 } 1268 1269 1270 /* 1271 * qla1280_done 1272 * Process completed commands. 1273 * 1274 * Input: 1275 * ha = adapter block pointer. 1276 */ 1277 static void 1278 qla1280_done(struct scsi_qla_host *ha) 1279 { 1280 struct srb *sp; 1281 struct list_head *done_q; 1282 int bus, target, lun; 1283 struct scsi_cmnd *cmd; 1284 1285 ENTER("qla1280_done"); 1286 1287 done_q = &ha->done_q; 1288 1289 while (!list_empty(done_q)) { 1290 sp = list_entry(done_q->next, struct srb, list); 1291 1292 list_del(&sp->list); 1293 1294 cmd = sp->cmd; 1295 bus = SCSI_BUS_32(cmd); 1296 target = SCSI_TCN_32(cmd); 1297 lun = SCSI_LUN_32(cmd); 1298 1299 switch ((CMD_RESULT(cmd) >> 16)) { 1300 case DID_RESET: 1301 /* Issue marker command. */ 1302 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); 1303 break; 1304 case DID_ABORT: 1305 sp->flags &= ~SRB_ABORT_PENDING; 1306 sp->flags |= SRB_ABORTED; 1307 if (sp->flags & SRB_TIMEOUT) 1308 CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16; 1309 break; 1310 default: 1311 break; 1312 } 1313 1314 /* Release memory used for this I/O */ 1315 if (cmd->use_sg) { 1316 pci_unmap_sg(ha->pdev, cmd->request_buffer, 1317 cmd->use_sg, cmd->sc_data_direction); 1318 } else if (cmd->request_bufflen) { 1319 pci_unmap_single(ha->pdev, sp->saved_dma_handle, 1320 cmd->request_bufflen, 1321 cmd->sc_data_direction); 1322 } 1323 1324 /* Call the mid-level driver interrupt handler */ 1325 CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE; 1326 ha->actthreads--; 1327 1328 (*(cmd)->scsi_done)(cmd); 1329 1330 if(sp->wait != NULL) 1331 complete(sp->wait); 1332 } 1333 LEAVE("qla1280_done"); 1334 } 1335 1336 /* 1337 * Translates a ISP error to a Linux SCSI error 1338 */ 1339 static int 1340 qla1280_return_status(struct response * sts, struct scsi_cmnd *cp) 1341 { 1342 int host_status = DID_ERROR; 1343 uint16_t comp_status = le16_to_cpu(sts->comp_status); 1344 uint16_t state_flags = le16_to_cpu(sts->state_flags); 1345 uint16_t residual_length = le32_to_cpu(sts->residual_length); 1346 uint16_t scsi_status = le16_to_cpu(sts->scsi_status); 1347 #if DEBUG_QLA1280_INTR 1348 static char *reason[] = { 1349 "DID_OK", 1350 "DID_NO_CONNECT", 1351 "DID_BUS_BUSY", 1352 "DID_TIME_OUT", 1353 "DID_BAD_TARGET", 1354 "DID_ABORT", 1355 "DID_PARITY", 1356 "DID_ERROR", 1357 "DID_RESET", 1358 "DID_BAD_INTR" 1359 }; 1360 #endif /* DEBUG_QLA1280_INTR */ 1361 1362 ENTER("qla1280_return_status"); 1363 1364 #if DEBUG_QLA1280_INTR 1365 /* 1366 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n", 1367 comp_status); 1368 */ 1369 #endif 1370 1371 switch (comp_status) { 1372 case CS_COMPLETE: 1373 host_status = DID_OK; 1374 break; 1375 1376 case CS_INCOMPLETE: 1377 if (!(state_flags & SF_GOT_BUS)) 1378 host_status = DID_NO_CONNECT; 1379 else if (!(state_flags & SF_GOT_TARGET)) 1380 host_status = DID_BAD_TARGET; 1381 else if (!(state_flags & SF_SENT_CDB)) 1382 host_status = DID_ERROR; 1383 else if (!(state_flags & SF_TRANSFERRED_DATA)) 1384 host_status = DID_ERROR; 1385 else if (!(state_flags & SF_GOT_STATUS)) 1386 host_status = DID_ERROR; 1387 else if (!(state_flags & SF_GOT_SENSE)) 1388 host_status = DID_ERROR; 1389 break; 1390 1391 case CS_RESET: 1392 host_status = DID_RESET; 1393 break; 1394 1395 case CS_ABORTED: 1396 host_status = DID_ABORT; 1397 break; 1398 1399 case CS_TIMEOUT: 1400 host_status = DID_TIME_OUT; 1401 break; 1402 1403 case CS_DATA_OVERRUN: 1404 dprintk(2, "Data overrun 0x%x\n", residual_length); 1405 dprintk(2, "qla1280_return_status: response packet data\n"); 1406 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE); 1407 host_status = DID_ERROR; 1408 break; 1409 1410 case CS_DATA_UNDERRUN: 1411 if ((cp->request_bufflen - residual_length) < 1412 cp->underflow) { 1413 printk(KERN_WARNING 1414 "scsi: Underflow detected - retrying " 1415 "command.\n"); 1416 host_status = DID_ERROR; 1417 } else 1418 host_status = DID_OK; 1419 break; 1420 1421 default: 1422 host_status = DID_ERROR; 1423 break; 1424 } 1425 1426 #if DEBUG_QLA1280_INTR 1427 dprintk(1, "qla1280 ISP status: host status (%s) scsi status %x\n", 1428 reason[host_status], scsi_status); 1429 #endif 1430 1431 LEAVE("qla1280_return_status"); 1432 1433 return (scsi_status & 0xff) | (host_status << 16); 1434 } 1435 1436 /****************************************************************************/ 1437 /* QLogic ISP1280 Hardware Support Functions. */ 1438 /****************************************************************************/ 1439 1440 /* 1441 * qla1280_initialize_adapter 1442 * Initialize board. 1443 * 1444 * Input: 1445 * ha = adapter block pointer. 1446 * 1447 * Returns: 1448 * 0 = success 1449 */ 1450 static int __devinit 1451 qla1280_initialize_adapter(struct scsi_qla_host *ha) 1452 { 1453 struct device_reg __iomem *reg; 1454 int status; 1455 int bus; 1456 unsigned long flags; 1457 1458 ENTER("qla1280_initialize_adapter"); 1459 1460 /* Clear adapter flags. */ 1461 ha->flags.online = 0; 1462 ha->flags.disable_host_adapter = 0; 1463 ha->flags.reset_active = 0; 1464 ha->flags.abort_isp_active = 0; 1465 1466 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 1467 if (ia64_platform_is("sn2")) { 1468 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA " 1469 "dual channel lockup workaround\n", ha->host_no); 1470 ha->flags.use_pci_vchannel = 1; 1471 driver_setup.no_nvram = 1; 1472 } 1473 #endif 1474 1475 /* TODO: implement support for the 1040 nvram format */ 1476 if (IS_ISP1040(ha)) 1477 driver_setup.no_nvram = 1; 1478 1479 dprintk(1, "Configure PCI space for adapter...\n"); 1480 1481 reg = ha->iobase; 1482 1483 /* Insure mailbox registers are free. */ 1484 WRT_REG_WORD(®->semaphore, 0); 1485 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); 1486 WRT_REG_WORD(®->host_cmd, HC_CLR_HOST_INT); 1487 RD_REG_WORD(®->host_cmd); 1488 1489 if (qla1280_read_nvram(ha)) { 1490 dprintk(2, "qla1280_initialize_adapter: failed to read " 1491 "NVRAM\n"); 1492 } 1493 1494 /* 1495 * It's necessary to grab the spin here as qla1280_mailbox_command 1496 * needs to be able to drop the lock unconditionally to wait 1497 * for completion. 1498 */ 1499 spin_lock_irqsave(ha->host->host_lock, flags); 1500 1501 status = qla1280_load_firmware(ha); 1502 if (status) { 1503 printk(KERN_ERR "scsi(%li): initialize: pci probe failed!\n", 1504 ha->host_no); 1505 goto out; 1506 } 1507 1508 /* Setup adapter based on NVRAM parameters. */ 1509 dprintk(1, "scsi(%ld): Configure NVRAM parameters\n", ha->host_no); 1510 qla1280_nvram_config(ha); 1511 1512 if (ha->flags.disable_host_adapter) { 1513 status = 1; 1514 goto out; 1515 } 1516 1517 status = qla1280_init_rings(ha); 1518 if (status) 1519 goto out; 1520 1521 /* Issue SCSI reset, if we can't reset twice then bus is dead */ 1522 for (bus = 0; bus < ha->ports; bus++) { 1523 if (!ha->bus_settings[bus].disable_scsi_reset && 1524 qla1280_bus_reset(ha, bus) && 1525 qla1280_bus_reset(ha, bus)) 1526 ha->bus_settings[bus].scsi_bus_dead = 1; 1527 } 1528 1529 ha->flags.online = 1; 1530 out: 1531 spin_unlock_irqrestore(ha->host->host_lock, flags); 1532 1533 if (status) 1534 dprintk(2, "qla1280_initialize_adapter: **** FAILED ****\n"); 1535 1536 LEAVE("qla1280_initialize_adapter"); 1537 return status; 1538 } 1539 1540 /* 1541 * Chip diagnostics 1542 * Test chip for proper operation. 1543 * 1544 * Input: 1545 * ha = adapter block pointer. 1546 * 1547 * Returns: 1548 * 0 = success. 1549 */ 1550 static int 1551 qla1280_chip_diag(struct scsi_qla_host *ha) 1552 { 1553 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1554 struct device_reg __iomem *reg = ha->iobase; 1555 int status = 0; 1556 int cnt; 1557 uint16_t data; 1558 dprintk(3, "qla1280_chip_diag: testing device at 0x%p \n", ®->id_l); 1559 1560 dprintk(1, "scsi(%ld): Verifying chip\n", ha->host_no); 1561 1562 /* Soft reset chip and wait for it to finish. */ 1563 WRT_REG_WORD(®->ictrl, ISP_RESET); 1564 1565 /* 1566 * We can't do a traditional PCI write flush here by reading 1567 * back the register. The card will not respond once the reset 1568 * is in action and we end up with a machine check exception 1569 * instead. Nothing to do but wait and hope for the best. 1570 * A portable pci_write_flush(pdev) call would be very useful here. 1571 */ 1572 udelay(20); 1573 data = qla1280_debounce_register(®->ictrl); 1574 /* 1575 * Yet another QLogic gem ;-( 1576 */ 1577 for (cnt = 1000000; cnt && data & ISP_RESET; cnt--) { 1578 udelay(5); 1579 data = RD_REG_WORD(®->ictrl); 1580 } 1581 1582 if (!cnt) 1583 goto fail; 1584 1585 /* Reset register cleared by chip reset. */ 1586 dprintk(3, "qla1280_chip_diag: reset register cleared by chip reset\n"); 1587 1588 WRT_REG_WORD(®->cfg_1, 0); 1589 1590 /* Reset RISC and disable BIOS which 1591 allows RISC to execute out of RAM. */ 1592 WRT_REG_WORD(®->host_cmd, HC_RESET_RISC | 1593 HC_RELEASE_RISC | HC_DISABLE_BIOS); 1594 1595 RD_REG_WORD(®->id_l); /* Flush PCI write */ 1596 data = qla1280_debounce_register(®->mailbox0); 1597 1598 /* 1599 * I *LOVE* this code! 1600 */ 1601 for (cnt = 1000000; cnt && data == MBS_BUSY; cnt--) { 1602 udelay(5); 1603 data = RD_REG_WORD(®->mailbox0); 1604 } 1605 1606 if (!cnt) 1607 goto fail; 1608 1609 /* Check product ID of chip */ 1610 dprintk(3, "qla1280_chip_diag: Checking product ID of chip\n"); 1611 1612 if (RD_REG_WORD(®->mailbox1) != PROD_ID_1 || 1613 (RD_REG_WORD(®->mailbox2) != PROD_ID_2 && 1614 RD_REG_WORD(®->mailbox2) != PROD_ID_2a) || 1615 RD_REG_WORD(®->mailbox3) != PROD_ID_3 || 1616 RD_REG_WORD(®->mailbox4) != PROD_ID_4) { 1617 printk(KERN_INFO "qla1280: Wrong product ID = " 1618 "0x%x,0x%x,0x%x,0x%x\n", 1619 RD_REG_WORD(®->mailbox1), 1620 RD_REG_WORD(®->mailbox2), 1621 RD_REG_WORD(®->mailbox3), 1622 RD_REG_WORD(®->mailbox4)); 1623 goto fail; 1624 } 1625 1626 /* 1627 * Enable ints early!!! 1628 */ 1629 qla1280_enable_intrs(ha); 1630 1631 dprintk(1, "qla1280_chip_diag: Checking mailboxes of chip\n"); 1632 /* Wrap Incoming Mailboxes Test. */ 1633 mb[0] = MBC_MAILBOX_REGISTER_TEST; 1634 mb[1] = 0xAAAA; 1635 mb[2] = 0x5555; 1636 mb[3] = 0xAA55; 1637 mb[4] = 0x55AA; 1638 mb[5] = 0xA5A5; 1639 mb[6] = 0x5A5A; 1640 mb[7] = 0x2525; 1641 1642 status = qla1280_mailbox_command(ha, 0xff, mb); 1643 if (status) 1644 goto fail; 1645 1646 if (mb[1] != 0xAAAA || mb[2] != 0x5555 || mb[3] != 0xAA55 || 1647 mb[4] != 0x55AA || mb[5] != 0xA5A5 || mb[6] != 0x5A5A || 1648 mb[7] != 0x2525) { 1649 printk(KERN_INFO "qla1280: Failed mbox check\n"); 1650 goto fail; 1651 } 1652 1653 dprintk(3, "qla1280_chip_diag: exiting normally\n"); 1654 return 0; 1655 fail: 1656 dprintk(2, "qla1280_chip_diag: **** FAILED ****\n"); 1657 return status; 1658 } 1659 1660 static int 1661 qla1280_load_firmware_pio(struct scsi_qla_host *ha) 1662 { 1663 uint16_t risc_address, *risc_code_address, risc_code_size; 1664 uint16_t mb[MAILBOX_REGISTER_COUNT], i; 1665 int err; 1666 1667 /* Load RISC code. */ 1668 risc_address = *ql1280_board_tbl[ha->devnum].fwstart; 1669 risc_code_address = ql1280_board_tbl[ha->devnum].fwcode; 1670 risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen; 1671 1672 for (i = 0; i < risc_code_size; i++) { 1673 mb[0] = MBC_WRITE_RAM_WORD; 1674 mb[1] = risc_address + i; 1675 mb[2] = risc_code_address[i]; 1676 1677 err = qla1280_mailbox_command(ha, BIT_0 | BIT_1 | BIT_2, mb); 1678 if (err) { 1679 printk(KERN_ERR "scsi(%li): Failed to load firmware\n", 1680 ha->host_no); 1681 return err; 1682 } 1683 } 1684 1685 return 0; 1686 } 1687 1688 #define DUMP_IT_BACK 0 /* for debug of RISC loading */ 1689 static int 1690 qla1280_load_firmware_dma(struct scsi_qla_host *ha) 1691 { 1692 uint16_t risc_address, *risc_code_address, risc_code_size; 1693 uint16_t mb[MAILBOX_REGISTER_COUNT], cnt; 1694 int err = 0, num, i; 1695 #if DUMP_IT_BACK 1696 uint8_t *sp, *tbuf; 1697 dma_addr_t p_tbuf; 1698 1699 tbuf = pci_alloc_consistent(ha->pdev, 8000, &p_tbuf); 1700 if (!tbuf) 1701 return -ENOMEM; 1702 #endif 1703 1704 /* Load RISC code. */ 1705 risc_address = *ql1280_board_tbl[ha->devnum].fwstart; 1706 risc_code_address = ql1280_board_tbl[ha->devnum].fwcode; 1707 risc_code_size = *ql1280_board_tbl[ha->devnum].fwlen; 1708 1709 dprintk(1, "%s: DMA RISC code (%i) words\n", 1710 __FUNCTION__, risc_code_size); 1711 1712 num = 0; 1713 while (risc_code_size > 0) { 1714 int warn __attribute__((unused)) = 0; 1715 1716 cnt = 2000 >> 1; 1717 1718 if (cnt > risc_code_size) 1719 cnt = risc_code_size; 1720 1721 dprintk(2, "qla1280_setup_chip: loading risc @ =(0x%p)," 1722 "%d,%d(0x%x)\n", 1723 risc_code_address, cnt, num, risc_address); 1724 for(i = 0; i < cnt; i++) 1725 ((__le16 *)ha->request_ring)[i] = 1726 cpu_to_le16(risc_code_address[i]); 1727 1728 mb[0] = MBC_LOAD_RAM; 1729 mb[1] = risc_address; 1730 mb[4] = cnt; 1731 mb[3] = ha->request_dma & 0xffff; 1732 mb[2] = (ha->request_dma >> 16) & 0xffff; 1733 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; 1734 mb[6] = pci_dma_hi32(ha->request_dma) >> 16; 1735 dprintk(2, "%s: op=%d 0x%p = 0x%4x,0x%4x,0x%4x,0x%4x\n", 1736 __FUNCTION__, mb[0], 1737 (void *)(long)ha->request_dma, 1738 mb[6], mb[7], mb[2], mb[3]); 1739 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | 1740 BIT_1 | BIT_0, mb); 1741 if (err) { 1742 printk(KERN_ERR "scsi(%li): Failed to load partial " 1743 "segment of f\n", ha->host_no); 1744 goto out; 1745 } 1746 1747 #if DUMP_IT_BACK 1748 mb[0] = MBC_DUMP_RAM; 1749 mb[1] = risc_address; 1750 mb[4] = cnt; 1751 mb[3] = p_tbuf & 0xffff; 1752 mb[2] = (p_tbuf >> 16) & 0xffff; 1753 mb[7] = pci_dma_hi32(p_tbuf) & 0xffff; 1754 mb[6] = pci_dma_hi32(p_tbuf) >> 16; 1755 1756 err = qla1280_mailbox_command(ha, BIT_4 | BIT_3 | BIT_2 | 1757 BIT_1 | BIT_0, mb); 1758 if (err) { 1759 printk(KERN_ERR 1760 "Failed to dump partial segment of f/w\n"); 1761 goto out; 1762 } 1763 sp = (uint8_t *)ha->request_ring; 1764 for (i = 0; i < (cnt << 1); i++) { 1765 if (tbuf[i] != sp[i] && warn++ < 10) { 1766 printk(KERN_ERR "%s: FW compare error @ " 1767 "byte(0x%x) loop#=%x\n", 1768 __FUNCTION__, i, num); 1769 printk(KERN_ERR "%s: FWbyte=%x " 1770 "FWfromChip=%x\n", 1771 __FUNCTION__, sp[i], tbuf[i]); 1772 /*break; */ 1773 } 1774 } 1775 #endif 1776 risc_address += cnt; 1777 risc_code_size = risc_code_size - cnt; 1778 risc_code_address = risc_code_address + cnt; 1779 num++; 1780 } 1781 1782 out: 1783 #if DUMP_IT_BACK 1784 pci_free_consistent(ha->pdev, 8000, tbuf, p_tbuf); 1785 #endif 1786 return err; 1787 } 1788 1789 static int 1790 qla1280_start_firmware(struct scsi_qla_host *ha) 1791 { 1792 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1793 int err; 1794 1795 dprintk(1, "%s: Verifying checksum of loaded RISC code.\n", 1796 __FUNCTION__); 1797 1798 /* Verify checksum of loaded RISC code. */ 1799 mb[0] = MBC_VERIFY_CHECKSUM; 1800 /* mb[1] = ql12_risc_code_addr01; */ 1801 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; 1802 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 1803 if (err) { 1804 printk(KERN_ERR "scsi(%li): RISC checksum failed.\n", ha->host_no); 1805 return err; 1806 } 1807 1808 /* Start firmware execution. */ 1809 dprintk(1, "%s: start firmware running.\n", __FUNCTION__); 1810 mb[0] = MBC_EXECUTE_FIRMWARE; 1811 mb[1] = *ql1280_board_tbl[ha->devnum].fwstart; 1812 err = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); 1813 if (err) { 1814 printk(KERN_ERR "scsi(%li): Failed to start firmware\n", 1815 ha->host_no); 1816 } 1817 1818 return err; 1819 } 1820 1821 static int 1822 qla1280_load_firmware(struct scsi_qla_host *ha) 1823 { 1824 int err; 1825 1826 err = qla1280_chip_diag(ha); 1827 if (err) 1828 goto out; 1829 if (IS_ISP1040(ha)) 1830 err = qla1280_load_firmware_pio(ha); 1831 else 1832 err = qla1280_load_firmware_dma(ha); 1833 if (err) 1834 goto out; 1835 err = qla1280_start_firmware(ha); 1836 out: 1837 return err; 1838 } 1839 1840 /* 1841 * Initialize rings 1842 * 1843 * Input: 1844 * ha = adapter block pointer. 1845 * ha->request_ring = request ring virtual address 1846 * ha->response_ring = response ring virtual address 1847 * ha->request_dma = request ring physical address 1848 * ha->response_dma = response ring physical address 1849 * 1850 * Returns: 1851 * 0 = success. 1852 */ 1853 static int 1854 qla1280_init_rings(struct scsi_qla_host *ha) 1855 { 1856 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1857 int status = 0; 1858 1859 ENTER("qla1280_init_rings"); 1860 1861 /* Clear outstanding commands array. */ 1862 memset(ha->outstanding_cmds, 0, 1863 sizeof(struct srb *) * MAX_OUTSTANDING_COMMANDS); 1864 1865 /* Initialize request queue. */ 1866 ha->request_ring_ptr = ha->request_ring; 1867 ha->req_ring_index = 0; 1868 ha->req_q_cnt = REQUEST_ENTRY_CNT; 1869 /* mb[0] = MBC_INIT_REQUEST_QUEUE; */ 1870 mb[0] = MBC_INIT_REQUEST_QUEUE_A64; 1871 mb[1] = REQUEST_ENTRY_CNT; 1872 mb[3] = ha->request_dma & 0xffff; 1873 mb[2] = (ha->request_dma >> 16) & 0xffff; 1874 mb[4] = 0; 1875 mb[7] = pci_dma_hi32(ha->request_dma) & 0xffff; 1876 mb[6] = pci_dma_hi32(ha->request_dma) >> 16; 1877 if (!(status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_4 | 1878 BIT_3 | BIT_2 | BIT_1 | BIT_0, 1879 &mb[0]))) { 1880 /* Initialize response queue. */ 1881 ha->response_ring_ptr = ha->response_ring; 1882 ha->rsp_ring_index = 0; 1883 /* mb[0] = MBC_INIT_RESPONSE_QUEUE; */ 1884 mb[0] = MBC_INIT_RESPONSE_QUEUE_A64; 1885 mb[1] = RESPONSE_ENTRY_CNT; 1886 mb[3] = ha->response_dma & 0xffff; 1887 mb[2] = (ha->response_dma >> 16) & 0xffff; 1888 mb[5] = 0; 1889 mb[7] = pci_dma_hi32(ha->response_dma) & 0xffff; 1890 mb[6] = pci_dma_hi32(ha->response_dma) >> 16; 1891 status = qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_5 | 1892 BIT_3 | BIT_2 | BIT_1 | BIT_0, 1893 &mb[0]); 1894 } 1895 1896 if (status) 1897 dprintk(2, "qla1280_init_rings: **** FAILED ****\n"); 1898 1899 LEAVE("qla1280_init_rings"); 1900 return status; 1901 } 1902 1903 static void 1904 qla1280_print_settings(struct nvram *nv) 1905 { 1906 dprintk(1, "qla1280 : initiator scsi id bus[0]=%d\n", 1907 nv->bus[0].config_1.initiator_id); 1908 dprintk(1, "qla1280 : initiator scsi id bus[1]=%d\n", 1909 nv->bus[1].config_1.initiator_id); 1910 1911 dprintk(1, "qla1280 : bus reset delay[0]=%d\n", 1912 nv->bus[0].bus_reset_delay); 1913 dprintk(1, "qla1280 : bus reset delay[1]=%d\n", 1914 nv->bus[1].bus_reset_delay); 1915 1916 dprintk(1, "qla1280 : retry count[0]=%d\n", nv->bus[0].retry_count); 1917 dprintk(1, "qla1280 : retry delay[0]=%d\n", nv->bus[0].retry_delay); 1918 dprintk(1, "qla1280 : retry count[1]=%d\n", nv->bus[1].retry_count); 1919 dprintk(1, "qla1280 : retry delay[1]=%d\n", nv->bus[1].retry_delay); 1920 1921 dprintk(1, "qla1280 : async data setup time[0]=%d\n", 1922 nv->bus[0].config_2.async_data_setup_time); 1923 dprintk(1, "qla1280 : async data setup time[1]=%d\n", 1924 nv->bus[1].config_2.async_data_setup_time); 1925 1926 dprintk(1, "qla1280 : req/ack active negation[0]=%d\n", 1927 nv->bus[0].config_2.req_ack_active_negation); 1928 dprintk(1, "qla1280 : req/ack active negation[1]=%d\n", 1929 nv->bus[1].config_2.req_ack_active_negation); 1930 1931 dprintk(1, "qla1280 : data line active negation[0]=%d\n", 1932 nv->bus[0].config_2.data_line_active_negation); 1933 dprintk(1, "qla1280 : data line active negation[1]=%d\n", 1934 nv->bus[1].config_2.data_line_active_negation); 1935 1936 dprintk(1, "qla1280 : disable loading risc code=%d\n", 1937 nv->cntr_flags_1.disable_loading_risc_code); 1938 1939 dprintk(1, "qla1280 : enable 64bit addressing=%d\n", 1940 nv->cntr_flags_1.enable_64bit_addressing); 1941 1942 dprintk(1, "qla1280 : selection timeout limit[0]=%d\n", 1943 nv->bus[0].selection_timeout); 1944 dprintk(1, "qla1280 : selection timeout limit[1]=%d\n", 1945 nv->bus[1].selection_timeout); 1946 1947 dprintk(1, "qla1280 : max queue depth[0]=%d\n", 1948 nv->bus[0].max_queue_depth); 1949 dprintk(1, "qla1280 : max queue depth[1]=%d\n", 1950 nv->bus[1].max_queue_depth); 1951 } 1952 1953 static void 1954 qla1280_set_target_defaults(struct scsi_qla_host *ha, int bus, int target) 1955 { 1956 struct nvram *nv = &ha->nvram; 1957 1958 nv->bus[bus].target[target].parameter.renegotiate_on_error = 1; 1959 nv->bus[bus].target[target].parameter.auto_request_sense = 1; 1960 nv->bus[bus].target[target].parameter.tag_queuing = 1; 1961 nv->bus[bus].target[target].parameter.enable_sync = 1; 1962 #if 1 /* Some SCSI Processors do not seem to like this */ 1963 nv->bus[bus].target[target].parameter.enable_wide = 1; 1964 #endif 1965 nv->bus[bus].target[target].execution_throttle = 1966 nv->bus[bus].max_queue_depth - 1; 1967 nv->bus[bus].target[target].parameter.parity_checking = 1; 1968 nv->bus[bus].target[target].parameter.disconnect_allowed = 1; 1969 1970 if (IS_ISP1x160(ha)) { 1971 nv->bus[bus].target[target].flags.flags1x160.device_enable = 1; 1972 nv->bus[bus].target[target].flags.flags1x160.sync_offset = 0x0e; 1973 nv->bus[bus].target[target].sync_period = 9; 1974 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 1; 1975 nv->bus[bus].target[target].ppr_1x160.flags.ppr_options = 2; 1976 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width = 1; 1977 } else { 1978 nv->bus[bus].target[target].flags.flags1x80.device_enable = 1; 1979 nv->bus[bus].target[target].flags.flags1x80.sync_offset = 12; 1980 nv->bus[bus].target[target].sync_period = 10; 1981 } 1982 } 1983 1984 static void 1985 qla1280_set_defaults(struct scsi_qla_host *ha) 1986 { 1987 struct nvram *nv = &ha->nvram; 1988 int bus, target; 1989 1990 dprintk(1, "Using defaults for NVRAM: \n"); 1991 memset(nv, 0, sizeof(struct nvram)); 1992 1993 /* nv->cntr_flags_1.disable_loading_risc_code = 1; */ 1994 nv->firmware_feature.f.enable_fast_posting = 1; 1995 nv->firmware_feature.f.disable_synchronous_backoff = 1; 1996 nv->termination.scsi_bus_0_control = 3; 1997 nv->termination.scsi_bus_1_control = 3; 1998 nv->termination.auto_term_support = 1; 1999 2000 /* 2001 * Set default FIFO magic - What appropriate values would be here 2002 * is unknown. This is what I have found testing with 12160s. 2003 * 2004 * Now, I would love the magic decoder ring for this one, the 2005 * header file provided by QLogic seems to be bogus or incomplete 2006 * at best. 2007 */ 2008 nv->isp_config.burst_enable = 1; 2009 if (IS_ISP1040(ha)) 2010 nv->isp_config.fifo_threshold |= 3; 2011 else 2012 nv->isp_config.fifo_threshold |= 4; 2013 2014 if (IS_ISP1x160(ha)) 2015 nv->isp_parameter = 0x01; /* fast memory enable */ 2016 2017 for (bus = 0; bus < MAX_BUSES; bus++) { 2018 nv->bus[bus].config_1.initiator_id = 7; 2019 nv->bus[bus].config_2.req_ack_active_negation = 1; 2020 nv->bus[bus].config_2.data_line_active_negation = 1; 2021 nv->bus[bus].selection_timeout = 250; 2022 nv->bus[bus].max_queue_depth = 256; 2023 2024 if (IS_ISP1040(ha)) { 2025 nv->bus[bus].bus_reset_delay = 3; 2026 nv->bus[bus].config_2.async_data_setup_time = 6; 2027 nv->bus[bus].retry_delay = 1; 2028 } else { 2029 nv->bus[bus].bus_reset_delay = 5; 2030 nv->bus[bus].config_2.async_data_setup_time = 8; 2031 } 2032 2033 for (target = 0; target < MAX_TARGETS; target++) 2034 qla1280_set_target_defaults(ha, bus, target); 2035 } 2036 } 2037 2038 static int 2039 qla1280_config_target(struct scsi_qla_host *ha, int bus, int target) 2040 { 2041 struct nvram *nv = &ha->nvram; 2042 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2043 int status, lun; 2044 uint16_t flag; 2045 2046 /* Set Target Parameters. */ 2047 mb[0] = MBC_SET_TARGET_PARAMETERS; 2048 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 2049 2050 /* 2051 * Do not enable sync and ppr for the initial INQUIRY run. We 2052 * enable this later if we determine the target actually 2053 * supports it. 2054 */ 2055 mb[2] = (TP_RENEGOTIATE | TP_AUTO_REQUEST_SENSE | TP_TAGGED_QUEUE 2056 | TP_WIDE | TP_PARITY | TP_DISCONNECT); 2057 2058 if (IS_ISP1x160(ha)) 2059 mb[3] = nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8; 2060 else 2061 mb[3] = nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8; 2062 mb[3] |= nv->bus[bus].target[target].sync_period; 2063 status = qla1280_mailbox_command(ha, 0x0f, mb); 2064 2065 /* Save Tag queuing enable flag. */ 2066 flag = (BIT_0 << target) & mb[0]; 2067 if (nv->bus[bus].target[target].parameter.tag_queuing) 2068 ha->bus_settings[bus].qtag_enables |= flag; 2069 2070 /* Save Device enable flag. */ 2071 if (IS_ISP1x160(ha)) { 2072 if (nv->bus[bus].target[target].flags.flags1x160.device_enable) 2073 ha->bus_settings[bus].device_enables |= flag; 2074 ha->bus_settings[bus].lun_disables |= 0; 2075 } else { 2076 if (nv->bus[bus].target[target].flags.flags1x80.device_enable) 2077 ha->bus_settings[bus].device_enables |= flag; 2078 /* Save LUN disable flag. */ 2079 if (nv->bus[bus].target[target].flags.flags1x80.lun_disable) 2080 ha->bus_settings[bus].lun_disables |= flag; 2081 } 2082 2083 /* Set Device Queue Parameters. */ 2084 for (lun = 0; lun < MAX_LUNS; lun++) { 2085 mb[0] = MBC_SET_DEVICE_QUEUE; 2086 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 2087 mb[1] |= lun; 2088 mb[2] = nv->bus[bus].max_queue_depth; 2089 mb[3] = nv->bus[bus].target[target].execution_throttle; 2090 status |= qla1280_mailbox_command(ha, 0x0f, mb); 2091 } 2092 2093 return status; 2094 } 2095 2096 static int 2097 qla1280_config_bus(struct scsi_qla_host *ha, int bus) 2098 { 2099 struct nvram *nv = &ha->nvram; 2100 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2101 int target, status; 2102 2103 /* SCSI Reset Disable. */ 2104 ha->bus_settings[bus].disable_scsi_reset = 2105 nv->bus[bus].config_1.scsi_reset_disable; 2106 2107 /* Initiator ID. */ 2108 ha->bus_settings[bus].id = nv->bus[bus].config_1.initiator_id; 2109 mb[0] = MBC_SET_INITIATOR_ID; 2110 mb[1] = bus ? ha->bus_settings[bus].id | BIT_7 : 2111 ha->bus_settings[bus].id; 2112 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); 2113 2114 /* Reset Delay. */ 2115 ha->bus_settings[bus].bus_reset_delay = 2116 nv->bus[bus].bus_reset_delay; 2117 2118 /* Command queue depth per device. */ 2119 ha->bus_settings[bus].hiwat = nv->bus[bus].max_queue_depth - 1; 2120 2121 /* Set target parameters. */ 2122 for (target = 0; target < MAX_TARGETS; target++) 2123 status |= qla1280_config_target(ha, bus, target); 2124 2125 return status; 2126 } 2127 2128 static int 2129 qla1280_nvram_config(struct scsi_qla_host *ha) 2130 { 2131 struct device_reg __iomem *reg = ha->iobase; 2132 struct nvram *nv = &ha->nvram; 2133 int bus, target, status = 0; 2134 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2135 2136 ENTER("qla1280_nvram_config"); 2137 2138 if (ha->nvram_valid) { 2139 /* Always force AUTO sense for LINUX SCSI */ 2140 for (bus = 0; bus < MAX_BUSES; bus++) 2141 for (target = 0; target < MAX_TARGETS; target++) { 2142 nv->bus[bus].target[target].parameter. 2143 auto_request_sense = 1; 2144 } 2145 } else { 2146 qla1280_set_defaults(ha); 2147 } 2148 2149 qla1280_print_settings(nv); 2150 2151 /* Disable RISC load of firmware. */ 2152 ha->flags.disable_risc_code_load = 2153 nv->cntr_flags_1.disable_loading_risc_code; 2154 2155 if (IS_ISP1040(ha)) { 2156 uint16_t hwrev, cfg1, cdma_conf, ddma_conf; 2157 2158 hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK; 2159 2160 cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6); 2161 cdma_conf = RD_REG_WORD(®->cdma_cfg); 2162 ddma_conf = RD_REG_WORD(®->ddma_cfg); 2163 2164 /* Busted fifo, says mjacob. */ 2165 if (hwrev != ISP_CFG0_1040A) 2166 cfg1 |= nv->isp_config.fifo_threshold << 4; 2167 2168 cfg1 |= nv->isp_config.burst_enable << 2; 2169 WRT_REG_WORD(®->cfg_1, cfg1); 2170 2171 WRT_REG_WORD(®->cdma_cfg, cdma_conf | CDMA_CONF_BENAB); 2172 WRT_REG_WORD(®->ddma_cfg, cdma_conf | DDMA_CONF_BENAB); 2173 } else { 2174 uint16_t cfg1, term; 2175 2176 /* Set ISP hardware DMA burst */ 2177 cfg1 = nv->isp_config.fifo_threshold << 4; 2178 cfg1 |= nv->isp_config.burst_enable << 2; 2179 /* Enable DMA arbitration on dual channel controllers */ 2180 if (ha->ports > 1) 2181 cfg1 |= BIT_13; 2182 WRT_REG_WORD(®->cfg_1, cfg1); 2183 2184 /* Set SCSI termination. */ 2185 WRT_REG_WORD(®->gpio_enable, 2186 BIT_7 | BIT_3 | BIT_2 | BIT_1 | BIT_0); 2187 term = nv->termination.scsi_bus_1_control; 2188 term |= nv->termination.scsi_bus_0_control << 2; 2189 term |= nv->termination.auto_term_support << 7; 2190 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2191 WRT_REG_WORD(®->gpio_data, term); 2192 } 2193 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2194 2195 /* ISP parameter word. */ 2196 mb[0] = MBC_SET_SYSTEM_PARAMETER; 2197 mb[1] = nv->isp_parameter; 2198 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); 2199 2200 if (IS_ISP1x40(ha)) { 2201 /* clock rate - for qla1240 and older, only */ 2202 mb[0] = MBC_SET_CLOCK_RATE; 2203 mb[1] = 40; 2204 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 2205 } 2206 2207 /* Firmware feature word. */ 2208 mb[0] = MBC_SET_FIRMWARE_FEATURES; 2209 mb[1] = nv->firmware_feature.f.enable_fast_posting; 2210 mb[1] |= nv->firmware_feature.f.report_lvd_bus_transition << 1; 2211 mb[1] |= nv->firmware_feature.f.disable_synchronous_backoff << 5; 2212 #if defined(CONFIG_IA64_GENERIC) || defined (CONFIG_IA64_SGI_SN2) 2213 if (ia64_platform_is("sn2")) { 2214 printk(KERN_INFO "scsi(%li): Enabling SN2 PCI DMA " 2215 "workaround\n", ha->host_no); 2216 mb[1] |= nv->firmware_feature.f.unused_9 << 9; /* XXX */ 2217 } 2218 #endif 2219 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 2220 2221 /* Retry count and delay. */ 2222 mb[0] = MBC_SET_RETRY_COUNT; 2223 mb[1] = nv->bus[0].retry_count; 2224 mb[2] = nv->bus[0].retry_delay; 2225 mb[6] = nv->bus[1].retry_count; 2226 mb[7] = nv->bus[1].retry_delay; 2227 status |= qla1280_mailbox_command(ha, BIT_7 | BIT_6 | BIT_2 | 2228 BIT_1 | BIT_0, &mb[0]); 2229 2230 /* ASYNC data setup time. */ 2231 mb[0] = MBC_SET_ASYNC_DATA_SETUP; 2232 mb[1] = nv->bus[0].config_2.async_data_setup_time; 2233 mb[2] = nv->bus[1].config_2.async_data_setup_time; 2234 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); 2235 2236 /* Active negation states. */ 2237 mb[0] = MBC_SET_ACTIVE_NEGATION; 2238 mb[1] = 0; 2239 if (nv->bus[0].config_2.req_ack_active_negation) 2240 mb[1] |= BIT_5; 2241 if (nv->bus[0].config_2.data_line_active_negation) 2242 mb[1] |= BIT_4; 2243 mb[2] = 0; 2244 if (nv->bus[1].config_2.req_ack_active_negation) 2245 mb[2] |= BIT_5; 2246 if (nv->bus[1].config_2.data_line_active_negation) 2247 mb[2] |= BIT_4; 2248 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); 2249 2250 mb[0] = MBC_SET_DATA_OVERRUN_RECOVERY; 2251 mb[1] = 2; /* Reset SCSI bus and return all outstanding IO */ 2252 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 2253 2254 /* thingy */ 2255 mb[0] = MBC_SET_PCI_CONTROL; 2256 mb[1] = BIT_1; /* Data DMA Channel Burst Enable */ 2257 mb[2] = BIT_1; /* Command DMA Channel Burst Enable */ 2258 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); 2259 2260 mb[0] = MBC_SET_TAG_AGE_LIMIT; 2261 mb[1] = 8; 2262 status |= qla1280_mailbox_command(ha, BIT_1 | BIT_0, mb); 2263 2264 /* Selection timeout. */ 2265 mb[0] = MBC_SET_SELECTION_TIMEOUT; 2266 mb[1] = nv->bus[0].selection_timeout; 2267 mb[2] = nv->bus[1].selection_timeout; 2268 status |= qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, mb); 2269 2270 for (bus = 0; bus < ha->ports; bus++) 2271 status |= qla1280_config_bus(ha, bus); 2272 2273 if (status) 2274 dprintk(2, "qla1280_nvram_config: **** FAILED ****\n"); 2275 2276 LEAVE("qla1280_nvram_config"); 2277 return status; 2278 } 2279 2280 /* 2281 * Get NVRAM data word 2282 * Calculates word position in NVRAM and calls request routine to 2283 * get the word from NVRAM. 2284 * 2285 * Input: 2286 * ha = adapter block pointer. 2287 * address = NVRAM word address. 2288 * 2289 * Returns: 2290 * data word. 2291 */ 2292 static uint16_t 2293 qla1280_get_nvram_word(struct scsi_qla_host *ha, uint32_t address) 2294 { 2295 uint32_t nv_cmd; 2296 uint16_t data; 2297 2298 nv_cmd = address << 16; 2299 nv_cmd |= NV_READ_OP; 2300 2301 data = le16_to_cpu(qla1280_nvram_request(ha, nv_cmd)); 2302 2303 dprintk(8, "qla1280_get_nvram_word: exiting normally NVRAM data = " 2304 "0x%x", data); 2305 2306 return data; 2307 } 2308 2309 /* 2310 * NVRAM request 2311 * Sends read command to NVRAM and gets data from NVRAM. 2312 * 2313 * Input: 2314 * ha = adapter block pointer. 2315 * nv_cmd = Bit 26 = start bit 2316 * Bit 25, 24 = opcode 2317 * Bit 23-16 = address 2318 * Bit 15-0 = write data 2319 * 2320 * Returns: 2321 * data word. 2322 */ 2323 static uint16_t 2324 qla1280_nvram_request(struct scsi_qla_host *ha, uint32_t nv_cmd) 2325 { 2326 struct device_reg __iomem *reg = ha->iobase; 2327 int cnt; 2328 uint16_t data = 0; 2329 uint16_t reg_data; 2330 2331 /* Send command to NVRAM. */ 2332 2333 nv_cmd <<= 5; 2334 for (cnt = 0; cnt < 11; cnt++) { 2335 if (nv_cmd & BIT_31) 2336 qla1280_nv_write(ha, NV_DATA_OUT); 2337 else 2338 qla1280_nv_write(ha, 0); 2339 nv_cmd <<= 1; 2340 } 2341 2342 /* Read data from NVRAM. */ 2343 2344 for (cnt = 0; cnt < 16; cnt++) { 2345 WRT_REG_WORD(®->nvram, (NV_SELECT | NV_CLOCK)); 2346 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2347 NVRAM_DELAY(); 2348 data <<= 1; 2349 reg_data = RD_REG_WORD(®->nvram); 2350 if (reg_data & NV_DATA_IN) 2351 data |= BIT_0; 2352 WRT_REG_WORD(®->nvram, NV_SELECT); 2353 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2354 NVRAM_DELAY(); 2355 } 2356 2357 /* Deselect chip. */ 2358 2359 WRT_REG_WORD(®->nvram, NV_DESELECT); 2360 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2361 NVRAM_DELAY(); 2362 2363 return data; 2364 } 2365 2366 static void 2367 qla1280_nv_write(struct scsi_qla_host *ha, uint16_t data) 2368 { 2369 struct device_reg __iomem *reg = ha->iobase; 2370 2371 WRT_REG_WORD(®->nvram, data | NV_SELECT); 2372 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2373 NVRAM_DELAY(); 2374 WRT_REG_WORD(®->nvram, data | NV_SELECT | NV_CLOCK); 2375 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2376 NVRAM_DELAY(); 2377 WRT_REG_WORD(®->nvram, data | NV_SELECT); 2378 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2379 NVRAM_DELAY(); 2380 } 2381 2382 /* 2383 * Mailbox Command 2384 * Issue mailbox command and waits for completion. 2385 * 2386 * Input: 2387 * ha = adapter block pointer. 2388 * mr = mailbox registers to load. 2389 * mb = data pointer for mailbox registers. 2390 * 2391 * Output: 2392 * mb[MAILBOX_REGISTER_COUNT] = returned mailbox data. 2393 * 2394 * Returns: 2395 * 0 = success 2396 */ 2397 static int 2398 qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb) 2399 { 2400 struct device_reg __iomem *reg = ha->iobase; 2401 #if 0 2402 LIST_HEAD(done_q); 2403 #endif 2404 int status = 0; 2405 int cnt; 2406 uint16_t *optr, *iptr; 2407 uint16_t __iomem *mptr; 2408 uint16_t data; 2409 DECLARE_COMPLETION(wait); 2410 struct timer_list timer; 2411 2412 ENTER("qla1280_mailbox_command"); 2413 2414 if (ha->mailbox_wait) { 2415 printk(KERN_ERR "Warning mailbox wait already in use!\n"); 2416 } 2417 ha->mailbox_wait = &wait; 2418 2419 /* 2420 * We really should start out by verifying that the mailbox is 2421 * available before starting sending the command data 2422 */ 2423 /* Load mailbox registers. */ 2424 mptr = (uint16_t __iomem *) ®->mailbox0; 2425 iptr = mb; 2426 for (cnt = 0; cnt < MAILBOX_REGISTER_COUNT; cnt++) { 2427 if (mr & BIT_0) { 2428 WRT_REG_WORD(mptr, (*iptr)); 2429 } 2430 2431 mr >>= 1; 2432 mptr++; 2433 iptr++; 2434 } 2435 2436 /* Issue set host interrupt command. */ 2437 2438 /* set up a timer just in case we're really jammed */ 2439 init_timer(&timer); 2440 timer.expires = jiffies + 20*HZ; 2441 timer.data = (unsigned long)ha; 2442 timer.function = qla1280_mailbox_timeout; 2443 add_timer(&timer); 2444 2445 spin_unlock_irq(ha->host->host_lock); 2446 WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT); 2447 data = qla1280_debounce_register(®->istatus); 2448 2449 wait_for_completion(&wait); 2450 del_timer_sync(&timer); 2451 2452 spin_lock_irq(ha->host->host_lock); 2453 2454 ha->mailbox_wait = NULL; 2455 2456 /* Check for mailbox command timeout. */ 2457 if (ha->mailbox_out[0] != MBS_CMD_CMP) { 2458 printk(KERN_WARNING "qla1280_mailbox_command: Command failed, " 2459 "mailbox0 = 0x%04x, mailbox_out0 = 0x%04x, istatus = " 2460 "0x%04x\n", 2461 mb[0], ha->mailbox_out[0], RD_REG_WORD(®->istatus)); 2462 printk(KERN_WARNING "m0 %04x, m1 %04x, m2 %04x, m3 %04x\n", 2463 RD_REG_WORD(®->mailbox0), RD_REG_WORD(®->mailbox1), 2464 RD_REG_WORD(®->mailbox2), RD_REG_WORD(®->mailbox3)); 2465 printk(KERN_WARNING "m4 %04x, m5 %04x, m6 %04x, m7 %04x\n", 2466 RD_REG_WORD(®->mailbox4), RD_REG_WORD(®->mailbox5), 2467 RD_REG_WORD(®->mailbox6), RD_REG_WORD(®->mailbox7)); 2468 status = 1; 2469 } 2470 2471 /* Load return mailbox registers. */ 2472 optr = mb; 2473 iptr = (uint16_t *) &ha->mailbox_out[0]; 2474 mr = MAILBOX_REGISTER_COUNT; 2475 memcpy(optr, iptr, MAILBOX_REGISTER_COUNT * sizeof(uint16_t)); 2476 2477 #if 0 2478 /* Go check for any response interrupts pending. */ 2479 qla1280_isr(ha, &done_q); 2480 #endif 2481 2482 if (ha->flags.reset_marker) 2483 qla1280_rst_aen(ha); 2484 2485 #if 0 2486 if (!list_empty(&done_q)) 2487 qla1280_done(ha, &done_q); 2488 #endif 2489 2490 if (status) 2491 dprintk(2, "qla1280_mailbox_command: **** FAILED, mailbox0 = " 2492 "0x%x ****\n", mb[0]); 2493 2494 LEAVE("qla1280_mailbox_command"); 2495 return status; 2496 } 2497 2498 /* 2499 * qla1280_poll 2500 * Polls ISP for interrupts. 2501 * 2502 * Input: 2503 * ha = adapter block pointer. 2504 */ 2505 static void 2506 qla1280_poll(struct scsi_qla_host *ha) 2507 { 2508 struct device_reg __iomem *reg = ha->iobase; 2509 uint16_t data; 2510 LIST_HEAD(done_q); 2511 2512 /* ENTER("qla1280_poll"); */ 2513 2514 /* Check for pending interrupts. */ 2515 data = RD_REG_WORD(®->istatus); 2516 if (data & RISC_INT) 2517 qla1280_isr(ha, &done_q); 2518 2519 if (!ha->mailbox_wait) { 2520 if (ha->flags.reset_marker) 2521 qla1280_rst_aen(ha); 2522 } 2523 2524 if (!list_empty(&done_q)) 2525 qla1280_done(ha); 2526 2527 /* LEAVE("qla1280_poll"); */ 2528 } 2529 2530 /* 2531 * qla1280_bus_reset 2532 * Issue SCSI bus reset. 2533 * 2534 * Input: 2535 * ha = adapter block pointer. 2536 * bus = SCSI bus number. 2537 * 2538 * Returns: 2539 * 0 = success 2540 */ 2541 static int 2542 qla1280_bus_reset(struct scsi_qla_host *ha, int bus) 2543 { 2544 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2545 uint16_t reset_delay; 2546 int status; 2547 2548 dprintk(3, "qla1280_bus_reset: entered\n"); 2549 2550 if (qla1280_verbose) 2551 printk(KERN_INFO "scsi(%li:%i): Resetting SCSI BUS\n", 2552 ha->host_no, bus); 2553 2554 reset_delay = ha->bus_settings[bus].bus_reset_delay; 2555 mb[0] = MBC_BUS_RESET; 2556 mb[1] = reset_delay; 2557 mb[2] = (uint16_t) bus; 2558 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); 2559 2560 if (status) { 2561 if (ha->bus_settings[bus].failed_reset_count > 2) 2562 ha->bus_settings[bus].scsi_bus_dead = 1; 2563 ha->bus_settings[bus].failed_reset_count++; 2564 } else { 2565 spin_unlock_irq(ha->host->host_lock); 2566 ssleep(reset_delay); 2567 spin_lock_irq(ha->host->host_lock); 2568 2569 ha->bus_settings[bus].scsi_bus_dead = 0; 2570 ha->bus_settings[bus].failed_reset_count = 0; 2571 ha->bus_settings[bus].reset_marker = 0; 2572 /* Issue marker command. */ 2573 qla1280_marker(ha, bus, 0, 0, MK_SYNC_ALL); 2574 } 2575 2576 /* 2577 * We should probably call qla1280_set_target_parameters() 2578 * here as well for all devices on the bus. 2579 */ 2580 2581 if (status) 2582 dprintk(2, "qla1280_bus_reset: **** FAILED ****\n"); 2583 else 2584 dprintk(3, "qla1280_bus_reset: exiting normally\n"); 2585 2586 return status; 2587 } 2588 2589 /* 2590 * qla1280_device_reset 2591 * Issue bus device reset message to the target. 2592 * 2593 * Input: 2594 * ha = adapter block pointer. 2595 * bus = SCSI BUS number. 2596 * target = SCSI ID. 2597 * 2598 * Returns: 2599 * 0 = success 2600 */ 2601 static int 2602 qla1280_device_reset(struct scsi_qla_host *ha, int bus, int target) 2603 { 2604 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2605 int status; 2606 2607 ENTER("qla1280_device_reset"); 2608 2609 mb[0] = MBC_ABORT_TARGET; 2610 mb[1] = (bus ? (target | BIT_7) : target) << 8; 2611 mb[2] = 1; 2612 status = qla1280_mailbox_command(ha, BIT_2 | BIT_1 | BIT_0, &mb[0]); 2613 2614 /* Issue marker command. */ 2615 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); 2616 2617 if (status) 2618 dprintk(2, "qla1280_device_reset: **** FAILED ****\n"); 2619 2620 LEAVE("qla1280_device_reset"); 2621 return status; 2622 } 2623 2624 /* 2625 * qla1280_abort_device 2626 * Issue an abort message to the device 2627 * 2628 * Input: 2629 * ha = adapter block pointer. 2630 * bus = SCSI BUS. 2631 * target = SCSI ID. 2632 * lun = SCSI LUN. 2633 * 2634 * Returns: 2635 * 0 = success 2636 */ 2637 static int 2638 qla1280_abort_device(struct scsi_qla_host *ha, int bus, int target, int lun) 2639 { 2640 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2641 int status; 2642 2643 ENTER("qla1280_abort_device"); 2644 2645 mb[0] = MBC_ABORT_DEVICE; 2646 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun; 2647 status = qla1280_mailbox_command(ha, BIT_1 | BIT_0, &mb[0]); 2648 2649 /* Issue marker command. */ 2650 qla1280_marker(ha, bus, target, lun, MK_SYNC_ID_LUN); 2651 2652 if (status) 2653 dprintk(2, "qla1280_abort_device: **** FAILED ****\n"); 2654 2655 LEAVE("qla1280_abort_device"); 2656 return status; 2657 } 2658 2659 /* 2660 * qla1280_abort_command 2661 * Abort command aborts a specified IOCB. 2662 * 2663 * Input: 2664 * ha = adapter block pointer. 2665 * sp = SB structure pointer. 2666 * 2667 * Returns: 2668 * 0 = success 2669 */ 2670 static int 2671 qla1280_abort_command(struct scsi_qla_host *ha, struct srb * sp, int handle) 2672 { 2673 uint16_t mb[MAILBOX_REGISTER_COUNT]; 2674 unsigned int bus, target, lun; 2675 int status; 2676 2677 ENTER("qla1280_abort_command"); 2678 2679 bus = SCSI_BUS_32(sp->cmd); 2680 target = SCSI_TCN_32(sp->cmd); 2681 lun = SCSI_LUN_32(sp->cmd); 2682 2683 sp->flags |= SRB_ABORT_PENDING; 2684 2685 mb[0] = MBC_ABORT_COMMAND; 2686 mb[1] = (bus ? target | BIT_7 : target) << 8 | lun; 2687 mb[2] = handle >> 16; 2688 mb[3] = handle & 0xffff; 2689 status = qla1280_mailbox_command(ha, 0x0f, &mb[0]); 2690 2691 if (status) { 2692 dprintk(2, "qla1280_abort_command: **** FAILED ****\n"); 2693 sp->flags &= ~SRB_ABORT_PENDING; 2694 } 2695 2696 2697 LEAVE("qla1280_abort_command"); 2698 return status; 2699 } 2700 2701 /* 2702 * qla1280_reset_adapter 2703 * Reset adapter. 2704 * 2705 * Input: 2706 * ha = adapter block pointer. 2707 */ 2708 static void 2709 qla1280_reset_adapter(struct scsi_qla_host *ha) 2710 { 2711 struct device_reg __iomem *reg = ha->iobase; 2712 2713 ENTER("qla1280_reset_adapter"); 2714 2715 /* Disable ISP chip */ 2716 ha->flags.online = 0; 2717 WRT_REG_WORD(®->ictrl, ISP_RESET); 2718 WRT_REG_WORD(®->host_cmd, 2719 HC_RESET_RISC | HC_RELEASE_RISC | HC_DISABLE_BIOS); 2720 RD_REG_WORD(®->id_l); /* Flush PCI write */ 2721 2722 LEAVE("qla1280_reset_adapter"); 2723 } 2724 2725 /* 2726 * Issue marker command. 2727 * Function issues marker IOCB. 2728 * 2729 * Input: 2730 * ha = adapter block pointer. 2731 * bus = SCSI BUS number 2732 * id = SCSI ID 2733 * lun = SCSI LUN 2734 * type = marker modifier 2735 */ 2736 static void 2737 qla1280_marker(struct scsi_qla_host *ha, int bus, int id, int lun, u8 type) 2738 { 2739 struct mrk_entry *pkt; 2740 2741 ENTER("qla1280_marker"); 2742 2743 /* Get request packet. */ 2744 if ((pkt = (struct mrk_entry *) qla1280_req_pkt(ha))) { 2745 pkt->entry_type = MARKER_TYPE; 2746 pkt->lun = (uint8_t) lun; 2747 pkt->target = (uint8_t) (bus ? (id | BIT_7) : id); 2748 pkt->modifier = type; 2749 pkt->entry_status = 0; 2750 2751 /* Issue command to ISP */ 2752 qla1280_isp_cmd(ha); 2753 } 2754 2755 LEAVE("qla1280_marker"); 2756 } 2757 2758 2759 /* 2760 * qla1280_64bit_start_scsi 2761 * The start SCSI is responsible for building request packets on 2762 * request ring and modifying ISP input pointer. 2763 * 2764 * Input: 2765 * ha = adapter block pointer. 2766 * sp = SB structure pointer. 2767 * 2768 * Returns: 2769 * 0 = success, was able to issue command. 2770 */ 2771 #ifdef QLA_64BIT_PTR 2772 static int 2773 qla1280_64bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) 2774 { 2775 struct device_reg __iomem *reg = ha->iobase; 2776 struct scsi_cmnd *cmd = sp->cmd; 2777 cmd_a64_entry_t *pkt; 2778 struct scatterlist *sg = NULL; 2779 __le32 *dword_ptr; 2780 dma_addr_t dma_handle; 2781 int status = 0; 2782 int cnt; 2783 int req_cnt; 2784 u16 seg_cnt; 2785 u8 dir; 2786 2787 ENTER("qla1280_64bit_start_scsi:"); 2788 2789 /* Calculate number of entries and segments required. */ 2790 req_cnt = 1; 2791 if (cmd->use_sg) { 2792 sg = (struct scatterlist *) cmd->request_buffer; 2793 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg, 2794 cmd->sc_data_direction); 2795 2796 if (seg_cnt > 2) { 2797 req_cnt += (seg_cnt - 2) / 5; 2798 if ((seg_cnt - 2) % 5) 2799 req_cnt++; 2800 } 2801 } else if (cmd->request_bufflen) { /* If data transfer. */ 2802 seg_cnt = 1; 2803 } else { 2804 seg_cnt = 0; 2805 } 2806 2807 if ((req_cnt + 2) >= ha->req_q_cnt) { 2808 /* Calculate number of free request entries. */ 2809 cnt = RD_REG_WORD(®->mailbox4); 2810 if (ha->req_ring_index < cnt) 2811 ha->req_q_cnt = cnt - ha->req_ring_index; 2812 else 2813 ha->req_q_cnt = 2814 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); 2815 } 2816 2817 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n", 2818 ha->req_q_cnt, seg_cnt); 2819 2820 /* If room for request in request ring. */ 2821 if ((req_cnt + 2) >= ha->req_q_cnt) { 2822 status = 1; 2823 dprintk(2, "qla1280_start_scsi: in-ptr=0x%x req_q_cnt=" 2824 "0x%xreq_cnt=0x%x", ha->req_ring_index, ha->req_q_cnt, 2825 req_cnt); 2826 goto out; 2827 } 2828 2829 /* Check for room in outstanding command list. */ 2830 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && 2831 ha->outstanding_cmds[cnt] != 0; cnt++); 2832 2833 if (cnt >= MAX_OUTSTANDING_COMMANDS) { 2834 status = 1; 2835 dprintk(2, "qla1280_start_scsi: NO ROOM IN " 2836 "OUTSTANDING ARRAY, req_q_cnt=0x%x", ha->req_q_cnt); 2837 goto out; 2838 } 2839 2840 ha->outstanding_cmds[cnt] = sp; 2841 ha->req_q_cnt -= req_cnt; 2842 CMD_HANDLE(sp->cmd) = (unsigned char *)(unsigned long)(cnt + 1); 2843 2844 dprintk(2, "start: cmd=%p sp=%p CDB=%xm, handle %lx\n", cmd, sp, 2845 cmd->cmnd[0], (long)CMD_HANDLE(sp->cmd)); 2846 dprintk(2, " bus %i, target %i, lun %i\n", 2847 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 2848 qla1280_dump_buffer(2, cmd->cmnd, MAX_COMMAND_SIZE); 2849 2850 /* 2851 * Build command packet. 2852 */ 2853 pkt = (cmd_a64_entry_t *) ha->request_ring_ptr; 2854 2855 pkt->entry_type = COMMAND_A64_TYPE; 2856 pkt->entry_count = (uint8_t) req_cnt; 2857 pkt->sys_define = (uint8_t) ha->req_ring_index; 2858 pkt->entry_status = 0; 2859 pkt->handle = cpu_to_le32(cnt); 2860 2861 /* Zero out remaining portion of packet. */ 2862 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); 2863 2864 /* Set ISP command timeout. */ 2865 pkt->timeout = cpu_to_le16(30); 2866 2867 /* Set device target ID and LUN */ 2868 pkt->lun = SCSI_LUN_32(cmd); 2869 pkt->target = SCSI_BUS_32(cmd) ? 2870 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); 2871 2872 /* Enable simple tag queuing if device supports it. */ 2873 if (cmd->device->simple_tags) 2874 pkt->control_flags |= cpu_to_le16(BIT_3); 2875 2876 /* Load SCSI command packet. */ 2877 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); 2878 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd)); 2879 /* dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ 2880 2881 /* Set transfer direction. */ 2882 dir = qla1280_data_direction(cmd); 2883 pkt->control_flags |= cpu_to_le16(dir); 2884 2885 /* Set total data segment count. */ 2886 pkt->dseg_count = cpu_to_le16(seg_cnt); 2887 2888 /* 2889 * Load data segments. 2890 */ 2891 if (seg_cnt) { /* If data transfer. */ 2892 /* Setup packet address segment pointer. */ 2893 dword_ptr = (u32 *)&pkt->dseg_0_address; 2894 2895 if (cmd->use_sg) { /* If scatter gather */ 2896 /* Load command entry data segments. */ 2897 for (cnt = 0; cnt < 2 && seg_cnt; cnt++, seg_cnt--) { 2898 dma_handle = sg_dma_address(sg); 2899 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 2900 if (ha->flags.use_pci_vchannel) 2901 sn_pci_set_vchan(ha->pdev, 2902 (unsigned long *)&dma_handle, 2903 SCSI_BUS_32(cmd)); 2904 #endif 2905 *dword_ptr++ = 2906 cpu_to_le32(pci_dma_lo32(dma_handle)); 2907 *dword_ptr++ = 2908 cpu_to_le32(pci_dma_hi32(dma_handle)); 2909 *dword_ptr++ = cpu_to_le32(sg_dma_len(sg)); 2910 sg++; 2911 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n", 2912 cpu_to_le32(pci_dma_hi32(dma_handle)), 2913 cpu_to_le32(pci_dma_lo32(dma_handle)), 2914 cpu_to_le32(sg_dma_len(sg))); 2915 } 2916 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather " 2917 "command packet data - b %i, t %i, l %i \n", 2918 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), 2919 SCSI_LUN_32(cmd)); 2920 qla1280_dump_buffer(5, (char *)pkt, 2921 REQUEST_ENTRY_SIZE); 2922 2923 /* 2924 * Build continuation packets. 2925 */ 2926 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x " 2927 "remains\n", seg_cnt); 2928 2929 while (seg_cnt > 0) { 2930 /* Adjust ring index. */ 2931 ha->req_ring_index++; 2932 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 2933 ha->req_ring_index = 0; 2934 ha->request_ring_ptr = 2935 ha->request_ring; 2936 } else 2937 ha->request_ring_ptr++; 2938 2939 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr; 2940 2941 /* Zero out packet. */ 2942 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2943 2944 /* Load packet defaults. */ 2945 ((struct cont_a64_entry *) pkt)->entry_type = 2946 CONTINUE_A64_TYPE; 2947 ((struct cont_a64_entry *) pkt)->entry_count = 1; 2948 ((struct cont_a64_entry *) pkt)->sys_define = 2949 (uint8_t)ha->req_ring_index; 2950 /* Setup packet address segment pointer. */ 2951 dword_ptr = 2952 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address; 2953 2954 /* Load continuation entry data segments. */ 2955 for (cnt = 0; cnt < 5 && seg_cnt; 2956 cnt++, seg_cnt--) { 2957 dma_handle = sg_dma_address(sg); 2958 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 2959 if (ha->flags.use_pci_vchannel) 2960 sn_pci_set_vchan(ha->pdev, 2961 (unsigned long *)&dma_handle, 2962 SCSI_BUS_32(cmd)); 2963 #endif 2964 *dword_ptr++ = 2965 cpu_to_le32(pci_dma_lo32(dma_handle)); 2966 *dword_ptr++ = 2967 cpu_to_le32(pci_dma_hi32(dma_handle)); 2968 *dword_ptr++ = 2969 cpu_to_le32(sg_dma_len(sg)); 2970 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n", 2971 cpu_to_le32(pci_dma_hi32(dma_handle)), 2972 cpu_to_le32(pci_dma_lo32(dma_handle)), 2973 cpu_to_le32(sg_dma_len(sg))); 2974 sg++; 2975 } 2976 dprintk(5, "qla1280_64bit_start_scsi: " 2977 "continuation packet data - b %i, t " 2978 "%i, l %i \n", SCSI_BUS_32(cmd), 2979 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 2980 qla1280_dump_buffer(5, (char *)pkt, 2981 REQUEST_ENTRY_SIZE); 2982 } 2983 } else { /* No scatter gather data transfer */ 2984 dma_handle = pci_map_single(ha->pdev, 2985 cmd->request_buffer, 2986 cmd->request_bufflen, 2987 cmd->sc_data_direction); 2988 2989 sp->saved_dma_handle = dma_handle; 2990 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 2991 if (ha->flags.use_pci_vchannel) 2992 sn_pci_set_vchan(ha->pdev, 2993 (unsigned long *)&dma_handle, 2994 SCSI_BUS_32(cmd)); 2995 #endif 2996 *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); 2997 *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle)); 2998 *dword_ptr = cpu_to_le32(cmd->request_bufflen); 2999 3000 dprintk(5, "qla1280_64bit_start_scsi: No scatter/" 3001 "gather command packet data - b %i, t %i, " 3002 "l %i \n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), 3003 SCSI_LUN_32(cmd)); 3004 qla1280_dump_buffer(5, (char *)pkt, 3005 REQUEST_ENTRY_SIZE); 3006 } 3007 } else { /* No data transfer */ 3008 dprintk(5, "qla1280_64bit_start_scsi: No data, command " 3009 "packet data - b %i, t %i, l %i \n", 3010 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 3011 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); 3012 } 3013 /* Adjust ring index. */ 3014 ha->req_ring_index++; 3015 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3016 ha->req_ring_index = 0; 3017 ha->request_ring_ptr = ha->request_ring; 3018 } else 3019 ha->request_ring_ptr++; 3020 3021 /* Set chip new ring index. */ 3022 dprintk(2, 3023 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n"); 3024 sp->flags |= SRB_SENT; 3025 ha->actthreads++; 3026 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3027 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ 3028 mmiowb(); 3029 3030 out: 3031 if (status) 3032 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n"); 3033 else 3034 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n"); 3035 3036 return status; 3037 } 3038 #else /* !QLA_64BIT_PTR */ 3039 3040 /* 3041 * qla1280_32bit_start_scsi 3042 * The start SCSI is responsible for building request packets on 3043 * request ring and modifying ISP input pointer. 3044 * 3045 * The Qlogic firmware interface allows every queue slot to have a SCSI 3046 * command and up to 4 scatter/gather (SG) entries. If we need more 3047 * than 4 SG entries, then continuation entries are used that can 3048 * hold another 7 entries each. The start routine determines if there 3049 * is eought empty slots then build the combination of requests to 3050 * fulfill the OS request. 3051 * 3052 * Input: 3053 * ha = adapter block pointer. 3054 * sp = SCSI Request Block structure pointer. 3055 * 3056 * Returns: 3057 * 0 = success, was able to issue command. 3058 */ 3059 static int 3060 qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) 3061 { 3062 struct device_reg __iomem *reg = ha->iobase; 3063 struct scsi_cmnd *cmd = sp->cmd; 3064 struct cmd_entry *pkt; 3065 struct scatterlist *sg = NULL; 3066 __le32 *dword_ptr; 3067 int status = 0; 3068 int cnt; 3069 int req_cnt; 3070 uint16_t seg_cnt; 3071 dma_addr_t dma_handle; 3072 u8 dir; 3073 3074 ENTER("qla1280_32bit_start_scsi"); 3075 3076 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp, 3077 cmd->cmnd[0]); 3078 3079 /* Calculate number of entries and segments required. */ 3080 req_cnt = 1; 3081 if (cmd->use_sg) { 3082 /* 3083 * We must build an SG list in adapter format, as the kernel's 3084 * SG list cannot be used directly because of data field size 3085 * (__alpha__) differences and the kernel SG list uses virtual 3086 * addresses where we need physical addresses. 3087 */ 3088 sg = (struct scatterlist *) cmd->request_buffer; 3089 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg, 3090 cmd->sc_data_direction); 3091 3092 /* 3093 * if greater than four sg entries then we need to allocate 3094 * continuation entries 3095 */ 3096 if (seg_cnt > 4) { 3097 req_cnt += (seg_cnt - 4) / 7; 3098 if ((seg_cnt - 4) % 7) 3099 req_cnt++; 3100 } 3101 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n", 3102 cmd, seg_cnt, req_cnt); 3103 } else if (cmd->request_bufflen) { /* If data transfer. */ 3104 dprintk(3, "No S/G transfer t=%x cmd=%p len=%x CDB=%x\n", 3105 SCSI_TCN_32(cmd), cmd, cmd->request_bufflen, 3106 cmd->cmnd[0]); 3107 seg_cnt = 1; 3108 } else { 3109 /* dprintk(1, "No data transfer \n"); */ 3110 seg_cnt = 0; 3111 } 3112 3113 if ((req_cnt + 2) >= ha->req_q_cnt) { 3114 /* Calculate number of free request entries. */ 3115 cnt = RD_REG_WORD(®->mailbox4); 3116 if (ha->req_ring_index < cnt) 3117 ha->req_q_cnt = cnt - ha->req_ring_index; 3118 else 3119 ha->req_q_cnt = 3120 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); 3121 } 3122 3123 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n", 3124 ha->req_q_cnt, seg_cnt); 3125 /* If room for request in request ring. */ 3126 if ((req_cnt + 2) >= ha->req_q_cnt) { 3127 status = 1; 3128 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, " 3129 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index, 3130 ha->req_q_cnt, req_cnt); 3131 goto out; 3132 } 3133 3134 /* Check for empty slot in outstanding command list. */ 3135 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && 3136 (ha->outstanding_cmds[cnt] != 0); cnt++) ; 3137 3138 if (cnt >= MAX_OUTSTANDING_COMMANDS) { 3139 status = 1; 3140 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING " 3141 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt); 3142 goto out; 3143 } 3144 3145 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1); 3146 ha->outstanding_cmds[cnt] = sp; 3147 ha->req_q_cnt -= req_cnt; 3148 3149 /* 3150 * Build command packet. 3151 */ 3152 pkt = (struct cmd_entry *) ha->request_ring_ptr; 3153 3154 pkt->entry_type = COMMAND_TYPE; 3155 pkt->entry_count = (uint8_t) req_cnt; 3156 pkt->sys_define = (uint8_t) ha->req_ring_index; 3157 pkt->entry_status = 0; 3158 pkt->handle = cpu_to_le32(cnt); 3159 3160 /* Zero out remaining portion of packet. */ 3161 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); 3162 3163 /* Set ISP command timeout. */ 3164 pkt->timeout = cpu_to_le16(30); 3165 3166 /* Set device target ID and LUN */ 3167 pkt->lun = SCSI_LUN_32(cmd); 3168 pkt->target = SCSI_BUS_32(cmd) ? 3169 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); 3170 3171 /* Enable simple tag queuing if device supports it. */ 3172 if (cmd->device->simple_tags) 3173 pkt->control_flags |= cpu_to_le16(BIT_3); 3174 3175 /* Load SCSI command packet. */ 3176 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); 3177 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd)); 3178 3179 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ 3180 /* Set transfer direction. */ 3181 dir = qla1280_data_direction(cmd); 3182 pkt->control_flags |= cpu_to_le16(dir); 3183 3184 /* Set total data segment count. */ 3185 pkt->dseg_count = cpu_to_le16(seg_cnt); 3186 3187 /* 3188 * Load data segments. 3189 */ 3190 if (seg_cnt) { 3191 /* Setup packet address segment pointer. */ 3192 dword_ptr = &pkt->dseg_0_address; 3193 3194 if (cmd->use_sg) { /* If scatter gather */ 3195 dprintk(3, "Building S/G data segments..\n"); 3196 qla1280_dump_buffer(1, (char *)sg, 4 * 16); 3197 3198 /* Load command entry data segments. */ 3199 for (cnt = 0; cnt < 4 && seg_cnt; cnt++, seg_cnt--) { 3200 *dword_ptr++ = 3201 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))); 3202 *dword_ptr++ = 3203 cpu_to_le32(sg_dma_len(sg)); 3204 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n", 3205 (pci_dma_lo32(sg_dma_address(sg))), 3206 (sg_dma_len(sg))); 3207 sg++; 3208 } 3209 /* 3210 * Build continuation packets. 3211 */ 3212 dprintk(3, "S/G Building Continuation" 3213 "...seg_cnt=0x%x remains\n", seg_cnt); 3214 while (seg_cnt > 0) { 3215 /* Adjust ring index. */ 3216 ha->req_ring_index++; 3217 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3218 ha->req_ring_index = 0; 3219 ha->request_ring_ptr = 3220 ha->request_ring; 3221 } else 3222 ha->request_ring_ptr++; 3223 3224 pkt = (struct cmd_entry *)ha->request_ring_ptr; 3225 3226 /* Zero out packet. */ 3227 memset(pkt, 0, REQUEST_ENTRY_SIZE); 3228 3229 /* Load packet defaults. */ 3230 ((struct cont_entry *) pkt)-> 3231 entry_type = CONTINUE_TYPE; 3232 ((struct cont_entry *) pkt)->entry_count = 1; 3233 3234 ((struct cont_entry *) pkt)->sys_define = 3235 (uint8_t) ha->req_ring_index; 3236 3237 /* Setup packet address segment pointer. */ 3238 dword_ptr = 3239 &((struct cont_entry *) pkt)->dseg_0_address; 3240 3241 /* Load continuation entry data segments. */ 3242 for (cnt = 0; cnt < 7 && seg_cnt; 3243 cnt++, seg_cnt--) { 3244 *dword_ptr++ = 3245 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))); 3246 *dword_ptr++ = 3247 cpu_to_le32(sg_dma_len(sg)); 3248 dprintk(1, 3249 "S/G Segment Cont. phys_addr=0x%x, " 3250 "len=0x%x\n", 3251 cpu_to_le32(pci_dma_lo32(sg_dma_address(sg))), 3252 cpu_to_le32(sg_dma_len(sg))); 3253 sg++; 3254 } 3255 dprintk(5, "qla1280_32bit_start_scsi: " 3256 "continuation packet data - " 3257 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd), 3258 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 3259 qla1280_dump_buffer(5, (char *)pkt, 3260 REQUEST_ENTRY_SIZE); 3261 } 3262 } else { /* No S/G data transfer */ 3263 dma_handle = pci_map_single(ha->pdev, 3264 cmd->request_buffer, 3265 cmd->request_bufflen, 3266 cmd->sc_data_direction); 3267 sp->saved_dma_handle = dma_handle; 3268 3269 *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); 3270 *dword_ptr = cpu_to_le32(cmd->request_bufflen); 3271 } 3272 } else { /* No data transfer at all */ 3273 dprintk(5, "qla1280_32bit_start_scsi: No data, command " 3274 "packet data - \n"); 3275 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); 3276 } 3277 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n"); 3278 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, 3279 REQUEST_ENTRY_SIZE); 3280 3281 /* Adjust ring index. */ 3282 ha->req_ring_index++; 3283 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3284 ha->req_ring_index = 0; 3285 ha->request_ring_ptr = ha->request_ring; 3286 } else 3287 ha->request_ring_ptr++; 3288 3289 /* Set chip new ring index. */ 3290 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC " 3291 "for pending command\n"); 3292 sp->flags |= SRB_SENT; 3293 ha->actthreads++; 3294 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3295 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ 3296 mmiowb(); 3297 3298 out: 3299 if (status) 3300 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n"); 3301 3302 LEAVE("qla1280_32bit_start_scsi"); 3303 3304 return status; 3305 } 3306 #endif 3307 3308 /* 3309 * qla1280_req_pkt 3310 * Function is responsible for locking ring and 3311 * getting a zeroed out request packet. 3312 * 3313 * Input: 3314 * ha = adapter block pointer. 3315 * 3316 * Returns: 3317 * 0 = failed to get slot. 3318 */ 3319 static request_t * 3320 qla1280_req_pkt(struct scsi_qla_host *ha) 3321 { 3322 struct device_reg __iomem *reg = ha->iobase; 3323 request_t *pkt = NULL; 3324 int cnt; 3325 uint32_t timer; 3326 3327 ENTER("qla1280_req_pkt"); 3328 3329 /* 3330 * This can be called from interrupt context, damn it!!! 3331 */ 3332 /* Wait for 30 seconds for slot. */ 3333 for (timer = 15000000; timer; timer--) { 3334 if (ha->req_q_cnt > 0) { 3335 /* Calculate number of free request entries. */ 3336 cnt = RD_REG_WORD(®->mailbox4); 3337 if (ha->req_ring_index < cnt) 3338 ha->req_q_cnt = cnt - ha->req_ring_index; 3339 else 3340 ha->req_q_cnt = 3341 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); 3342 } 3343 3344 /* Found empty request ring slot? */ 3345 if (ha->req_q_cnt > 0) { 3346 ha->req_q_cnt--; 3347 pkt = ha->request_ring_ptr; 3348 3349 /* Zero out packet. */ 3350 memset(pkt, 0, REQUEST_ENTRY_SIZE); 3351 3352 /* 3353 * How can this be right when we have a ring 3354 * size of 512??? 3355 */ 3356 /* Set system defined field. */ 3357 pkt->sys_define = (uint8_t) ha->req_ring_index; 3358 3359 /* Set entry count. */ 3360 pkt->entry_count = 1; 3361 3362 break; 3363 } 3364 3365 udelay(2); /* 10 */ 3366 3367 /* Check for pending interrupts. */ 3368 qla1280_poll(ha); 3369 } 3370 3371 if (!pkt) 3372 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n"); 3373 else 3374 dprintk(3, "qla1280_req_pkt: exiting normally\n"); 3375 3376 return pkt; 3377 } 3378 3379 /* 3380 * qla1280_isp_cmd 3381 * Function is responsible for modifying ISP input pointer. 3382 * Releases ring lock. 3383 * 3384 * Input: 3385 * ha = adapter block pointer. 3386 */ 3387 static void 3388 qla1280_isp_cmd(struct scsi_qla_host *ha) 3389 { 3390 struct device_reg __iomem *reg = ha->iobase; 3391 3392 ENTER("qla1280_isp_cmd"); 3393 3394 dprintk(5, "qla1280_isp_cmd: IOCB data:\n"); 3395 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, 3396 REQUEST_ENTRY_SIZE); 3397 3398 /* Adjust ring index. */ 3399 ha->req_ring_index++; 3400 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3401 ha->req_ring_index = 0; 3402 ha->request_ring_ptr = ha->request_ring; 3403 } else 3404 ha->request_ring_ptr++; 3405 3406 /* 3407 * Update request index to mailbox4 (Request Queue In). 3408 * The mmiowb() ensures that this write is ordered with writes by other 3409 * CPUs. Without the mmiowb(), it is possible for the following: 3410 * CPUA posts write of index 5 to mailbox4 3411 * CPUA releases host lock 3412 * CPUB acquires host lock 3413 * CPUB posts write of index 6 to mailbox4 3414 * On PCI bus, order reverses and write of 6 posts, then index 5, 3415 * causing chip to issue full queue of stale commands 3416 * The mmiowb() prevents future writes from crossing the barrier. 3417 * See Documentation/DocBook/deviceiobook.tmpl for more information. 3418 */ 3419 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3420 mmiowb(); 3421 3422 LEAVE("qla1280_isp_cmd"); 3423 } 3424 3425 /****************************************************************************/ 3426 /* Interrupt Service Routine. */ 3427 /****************************************************************************/ 3428 3429 /**************************************************************************** 3430 * qla1280_isr 3431 * Calls I/O done on command completion. 3432 * 3433 * Input: 3434 * ha = adapter block pointer. 3435 * done_q = done queue. 3436 ****************************************************************************/ 3437 static void 3438 qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q) 3439 { 3440 struct device_reg __iomem *reg = ha->iobase; 3441 struct response *pkt; 3442 struct srb *sp = NULL; 3443 uint16_t mailbox[MAILBOX_REGISTER_COUNT]; 3444 uint16_t *wptr; 3445 uint32_t index; 3446 u16 istatus; 3447 3448 ENTER("qla1280_isr"); 3449 3450 istatus = RD_REG_WORD(®->istatus); 3451 if (!(istatus & (RISC_INT | PCI_INT))) 3452 return; 3453 3454 /* Save mailbox register 5 */ 3455 mailbox[5] = RD_REG_WORD(®->mailbox5); 3456 3457 /* Check for mailbox interrupt. */ 3458 3459 mailbox[0] = RD_REG_WORD_dmasync(®->semaphore); 3460 3461 if (mailbox[0] & BIT_0) { 3462 /* Get mailbox data. */ 3463 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */ 3464 3465 wptr = &mailbox[0]; 3466 *wptr++ = RD_REG_WORD(®->mailbox0); 3467 *wptr++ = RD_REG_WORD(®->mailbox1); 3468 *wptr = RD_REG_WORD(®->mailbox2); 3469 if (mailbox[0] != MBA_SCSI_COMPLETION) { 3470 wptr++; 3471 *wptr++ = RD_REG_WORD(®->mailbox3); 3472 *wptr++ = RD_REG_WORD(®->mailbox4); 3473 wptr++; 3474 *wptr++ = RD_REG_WORD(®->mailbox6); 3475 *wptr = RD_REG_WORD(®->mailbox7); 3476 } 3477 3478 /* Release mailbox registers. */ 3479 3480 WRT_REG_WORD(®->semaphore, 0); 3481 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); 3482 3483 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x", 3484 mailbox[0]); 3485 3486 /* Handle asynchronous event */ 3487 switch (mailbox[0]) { 3488 case MBA_SCSI_COMPLETION: /* Response completion */ 3489 dprintk(5, "qla1280_isr: mailbox SCSI response " 3490 "completion\n"); 3491 3492 if (ha->flags.online) { 3493 /* Get outstanding command index. */ 3494 index = mailbox[2] << 16 | mailbox[1]; 3495 3496 /* Validate handle. */ 3497 if (index < MAX_OUTSTANDING_COMMANDS) 3498 sp = ha->outstanding_cmds[index]; 3499 else 3500 sp = NULL; 3501 3502 if (sp) { 3503 /* Free outstanding command slot. */ 3504 ha->outstanding_cmds[index] = NULL; 3505 3506 /* Save ISP completion status */ 3507 CMD_RESULT(sp->cmd) = 0; 3508 3509 /* Place block on done queue */ 3510 list_add_tail(&sp->list, done_q); 3511 } else { 3512 /* 3513 * If we get here we have a real problem! 3514 */ 3515 printk(KERN_WARNING 3516 "qla1280: ISP invalid handle"); 3517 } 3518 } 3519 break; 3520 3521 case MBA_BUS_RESET: /* SCSI Bus Reset */ 3522 ha->flags.reset_marker = 1; 3523 index = mailbox[6] & BIT_0; 3524 ha->bus_settings[index].reset_marker = 1; 3525 3526 printk(KERN_DEBUG "qla1280_isr(): index %i " 3527 "asynchronous BUS_RESET\n", index); 3528 break; 3529 3530 case MBA_SYSTEM_ERR: /* System Error */ 3531 printk(KERN_WARNING 3532 "qla1280: ISP System Error - mbx1=%xh, mbx2=" 3533 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2], 3534 mailbox[3]); 3535 break; 3536 3537 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 3538 printk(KERN_WARNING 3539 "qla1280: ISP Request Transfer Error\n"); 3540 break; 3541 3542 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 3543 printk(KERN_WARNING 3544 "qla1280: ISP Response Transfer Error\n"); 3545 break; 3546 3547 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 3548 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n"); 3549 break; 3550 3551 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */ 3552 dprintk(2, 3553 "qla1280_isr: asynchronous TIMEOUT_RESET\n"); 3554 break; 3555 3556 case MBA_DEVICE_RESET: /* Bus Device Reset */ 3557 printk(KERN_INFO "qla1280_isr(): asynchronous " 3558 "BUS_DEVICE_RESET\n"); 3559 3560 ha->flags.reset_marker = 1; 3561 index = mailbox[6] & BIT_0; 3562 ha->bus_settings[index].reset_marker = 1; 3563 break; 3564 3565 case MBA_BUS_MODE_CHANGE: 3566 dprintk(2, 3567 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n"); 3568 break; 3569 3570 default: 3571 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */ 3572 if (mailbox[0] < MBA_ASYNC_EVENT) { 3573 wptr = &mailbox[0]; 3574 memcpy((uint16_t *) ha->mailbox_out, wptr, 3575 MAILBOX_REGISTER_COUNT * 3576 sizeof(uint16_t)); 3577 3578 if(ha->mailbox_wait != NULL) 3579 complete(ha->mailbox_wait); 3580 } 3581 break; 3582 } 3583 } else { 3584 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); 3585 } 3586 3587 /* 3588 * We will receive interrupts during mailbox testing prior to 3589 * the card being marked online, hence the double check. 3590 */ 3591 if (!(ha->flags.online && !ha->mailbox_wait)) { 3592 dprintk(2, "qla1280_isr: Response pointer Error\n"); 3593 goto out; 3594 } 3595 3596 if (mailbox[5] >= RESPONSE_ENTRY_CNT) 3597 goto out; 3598 3599 while (ha->rsp_ring_index != mailbox[5]) { 3600 pkt = ha->response_ring_ptr; 3601 3602 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]" 3603 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]); 3604 dprintk(5,"qla1280_isr: response packet data\n"); 3605 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE); 3606 3607 if (pkt->entry_type == STATUS_TYPE) { 3608 if ((le16_to_cpu(pkt->scsi_status) & 0xff) 3609 || pkt->comp_status || pkt->entry_status) { 3610 dprintk(2, "qla1280_isr: ha->rsp_ring_index = " 3611 "0x%x mailbox[5] = 0x%x, comp_status " 3612 "= 0x%x, scsi_status = 0x%x\n", 3613 ha->rsp_ring_index, mailbox[5], 3614 le16_to_cpu(pkt->comp_status), 3615 le16_to_cpu(pkt->scsi_status)); 3616 } 3617 } else { 3618 dprintk(2, "qla1280_isr: ha->rsp_ring_index = " 3619 "0x%x, mailbox[5] = 0x%x\n", 3620 ha->rsp_ring_index, mailbox[5]); 3621 dprintk(2, "qla1280_isr: response packet data\n"); 3622 qla1280_dump_buffer(2, (char *)pkt, 3623 RESPONSE_ENTRY_SIZE); 3624 } 3625 3626 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) { 3627 dprintk(2, "status: Cmd %p, handle %i\n", 3628 ha->outstanding_cmds[pkt->handle]->cmd, 3629 pkt->handle); 3630 if (pkt->entry_type == STATUS_TYPE) 3631 qla1280_status_entry(ha, pkt, done_q); 3632 else 3633 qla1280_error_entry(ha, pkt, done_q); 3634 /* Adjust ring index. */ 3635 ha->rsp_ring_index++; 3636 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) { 3637 ha->rsp_ring_index = 0; 3638 ha->response_ring_ptr = ha->response_ring; 3639 } else 3640 ha->response_ring_ptr++; 3641 WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index); 3642 } 3643 } 3644 3645 out: 3646 LEAVE("qla1280_isr"); 3647 } 3648 3649 /* 3650 * qla1280_rst_aen 3651 * Processes asynchronous reset. 3652 * 3653 * Input: 3654 * ha = adapter block pointer. 3655 */ 3656 static void 3657 qla1280_rst_aen(struct scsi_qla_host *ha) 3658 { 3659 uint8_t bus; 3660 3661 ENTER("qla1280_rst_aen"); 3662 3663 if (ha->flags.online && !ha->flags.reset_active && 3664 !ha->flags.abort_isp_active) { 3665 ha->flags.reset_active = 1; 3666 while (ha->flags.reset_marker) { 3667 /* Issue marker command. */ 3668 ha->flags.reset_marker = 0; 3669 for (bus = 0; bus < ha->ports && 3670 !ha->flags.reset_marker; bus++) { 3671 if (ha->bus_settings[bus].reset_marker) { 3672 ha->bus_settings[bus].reset_marker = 0; 3673 qla1280_marker(ha, bus, 0, 0, 3674 MK_SYNC_ALL); 3675 } 3676 } 3677 } 3678 } 3679 3680 LEAVE("qla1280_rst_aen"); 3681 } 3682 3683 3684 /* 3685 * qla1280_status_entry 3686 * Processes received ISP status entry. 3687 * 3688 * Input: 3689 * ha = adapter block pointer. 3690 * pkt = entry pointer. 3691 * done_q = done queue. 3692 */ 3693 static void 3694 qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt, 3695 struct list_head *done_q) 3696 { 3697 unsigned int bus, target, lun; 3698 int sense_sz; 3699 struct srb *sp; 3700 struct scsi_cmnd *cmd; 3701 uint32_t handle = le32_to_cpu(pkt->handle); 3702 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status); 3703 uint16_t comp_status = le16_to_cpu(pkt->comp_status); 3704 3705 ENTER("qla1280_status_entry"); 3706 3707 /* Validate handle. */ 3708 if (handle < MAX_OUTSTANDING_COMMANDS) 3709 sp = ha->outstanding_cmds[handle]; 3710 else 3711 sp = NULL; 3712 3713 if (!sp) { 3714 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n"); 3715 goto out; 3716 } 3717 3718 /* Free outstanding command slot. */ 3719 ha->outstanding_cmds[handle] = NULL; 3720 3721 cmd = sp->cmd; 3722 3723 /* Generate LU queue on cntrl, target, LUN */ 3724 bus = SCSI_BUS_32(cmd); 3725 target = SCSI_TCN_32(cmd); 3726 lun = SCSI_LUN_32(cmd); 3727 3728 if (comp_status || scsi_status) { 3729 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = " 3730 "0x%x, handle = 0x%x\n", comp_status, 3731 scsi_status, handle); 3732 } 3733 3734 /* Target busy or queue full */ 3735 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL || 3736 (scsi_status & 0xFF) == SAM_STAT_BUSY) { 3737 CMD_RESULT(cmd) = scsi_status & 0xff; 3738 } else { 3739 3740 /* Save ISP completion status */ 3741 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd); 3742 3743 if (scsi_status & SAM_STAT_CHECK_CONDITION) { 3744 if (comp_status != CS_ARS_FAILED) { 3745 uint16_t req_sense_length = 3746 le16_to_cpu(pkt->req_sense_length); 3747 if (req_sense_length < CMD_SNSLEN(cmd)) 3748 sense_sz = req_sense_length; 3749 else 3750 /* 3751 * scsi_cmnd->sense_buffer is 3752 * 64 bytes, why only copy 63? 3753 * This looks wrong! /Jes 3754 */ 3755 sense_sz = CMD_SNSLEN(cmd) - 1; 3756 3757 memcpy(cmd->sense_buffer, 3758 &pkt->req_sense_data, sense_sz); 3759 } else 3760 sense_sz = 0; 3761 memset(cmd->sense_buffer + sense_sz, 0, 3762 sizeof(cmd->sense_buffer) - sense_sz); 3763 3764 dprintk(2, "qla1280_status_entry: Check " 3765 "condition Sense data, b %i, t %i, " 3766 "l %i\n", bus, target, lun); 3767 if (sense_sz) 3768 qla1280_dump_buffer(2, 3769 (char *)cmd->sense_buffer, 3770 sense_sz); 3771 } 3772 } 3773 3774 /* Place command on done queue. */ 3775 list_add_tail(&sp->list, done_q); 3776 out: 3777 LEAVE("qla1280_status_entry"); 3778 } 3779 3780 /* 3781 * qla1280_error_entry 3782 * Processes error entry. 3783 * 3784 * Input: 3785 * ha = adapter block pointer. 3786 * pkt = entry pointer. 3787 * done_q = done queue. 3788 */ 3789 static void 3790 qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt, 3791 struct list_head *done_q) 3792 { 3793 struct srb *sp; 3794 uint32_t handle = le32_to_cpu(pkt->handle); 3795 3796 ENTER("qla1280_error_entry"); 3797 3798 if (pkt->entry_status & BIT_3) 3799 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n"); 3800 else if (pkt->entry_status & BIT_2) 3801 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n"); 3802 else if (pkt->entry_status & BIT_1) 3803 dprintk(2, "qla1280_error_entry: FULL flag error\n"); 3804 else 3805 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n"); 3806 3807 /* Validate handle. */ 3808 if (handle < MAX_OUTSTANDING_COMMANDS) 3809 sp = ha->outstanding_cmds[handle]; 3810 else 3811 sp = NULL; 3812 3813 if (sp) { 3814 /* Free outstanding command slot. */ 3815 ha->outstanding_cmds[handle] = NULL; 3816 3817 /* Bad payload or header */ 3818 if (pkt->entry_status & (BIT_3 + BIT_2)) { 3819 /* Bad payload or header, set error status. */ 3820 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */ 3821 CMD_RESULT(sp->cmd) = DID_ERROR << 16; 3822 } else if (pkt->entry_status & BIT_1) { /* FULL flag */ 3823 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16; 3824 } else { 3825 /* Set error status. */ 3826 CMD_RESULT(sp->cmd) = DID_ERROR << 16; 3827 } 3828 3829 /* Place command on done queue. */ 3830 list_add_tail(&sp->list, done_q); 3831 } 3832 #ifdef QLA_64BIT_PTR 3833 else if (pkt->entry_type == COMMAND_A64_TYPE) { 3834 printk(KERN_WARNING "!qla1280: Error Entry invalid handle"); 3835 } 3836 #endif 3837 3838 LEAVE("qla1280_error_entry"); 3839 } 3840 3841 /* 3842 * qla1280_abort_isp 3843 * Resets ISP and aborts all outstanding commands. 3844 * 3845 * Input: 3846 * ha = adapter block pointer. 3847 * 3848 * Returns: 3849 * 0 = success 3850 */ 3851 static int 3852 qla1280_abort_isp(struct scsi_qla_host *ha) 3853 { 3854 struct device_reg __iomem *reg = ha->iobase; 3855 struct srb *sp; 3856 int status = 0; 3857 int cnt; 3858 int bus; 3859 3860 ENTER("qla1280_abort_isp"); 3861 3862 if (ha->flags.abort_isp_active || !ha->flags.online) 3863 goto out; 3864 3865 ha->flags.abort_isp_active = 1; 3866 3867 /* Disable ISP interrupts. */ 3868 qla1280_disable_intrs(ha); 3869 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); 3870 RD_REG_WORD(®->id_l); 3871 3872 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n", 3873 ha->host_no); 3874 /* Dequeue all commands in outstanding command list. */ 3875 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { 3876 struct scsi_cmnd *cmd; 3877 sp = ha->outstanding_cmds[cnt]; 3878 if (sp) { 3879 3880 cmd = sp->cmd; 3881 CMD_RESULT(cmd) = DID_RESET << 16; 3882 3883 sp->cmd = NULL; 3884 ha->outstanding_cmds[cnt] = NULL; 3885 3886 (*cmd->scsi_done)(cmd); 3887 3888 sp->flags = 0; 3889 } 3890 } 3891 3892 status = qla1280_load_firmware(ha); 3893 if (status) 3894 goto out; 3895 3896 /* Setup adapter based on NVRAM parameters. */ 3897 qla1280_nvram_config (ha); 3898 3899 status = qla1280_init_rings(ha); 3900 if (status) 3901 goto out; 3902 3903 /* Issue SCSI reset. */ 3904 for (bus = 0; bus < ha->ports; bus++) 3905 qla1280_bus_reset(ha, bus); 3906 3907 ha->flags.abort_isp_active = 0; 3908 out: 3909 if (status) { 3910 printk(KERN_WARNING 3911 "qla1280: ISP error recovery failed, board disabled"); 3912 qla1280_reset_adapter(ha); 3913 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n"); 3914 } 3915 3916 LEAVE("qla1280_abort_isp"); 3917 return status; 3918 } 3919 3920 3921 /* 3922 * qla1280_debounce_register 3923 * Debounce register. 3924 * 3925 * Input: 3926 * port = register address. 3927 * 3928 * Returns: 3929 * register value. 3930 */ 3931 static u16 3932 qla1280_debounce_register(volatile u16 __iomem * addr) 3933 { 3934 volatile u16 ret; 3935 volatile u16 ret2; 3936 3937 ret = RD_REG_WORD(addr); 3938 ret2 = RD_REG_WORD(addr); 3939 3940 if (ret == ret2) 3941 return ret; 3942 3943 do { 3944 cpu_relax(); 3945 ret = RD_REG_WORD(addr); 3946 ret2 = RD_REG_WORD(addr); 3947 } while (ret != ret2); 3948 3949 return ret; 3950 } 3951 3952 3953 /************************************************************************ 3954 * qla1280_check_for_dead_scsi_bus * 3955 * * 3956 * This routine checks for a dead SCSI bus * 3957 ************************************************************************/ 3958 #define SET_SXP_BANK 0x0100 3959 #define SCSI_PHASE_INVALID 0x87FF 3960 static int 3961 qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus) 3962 { 3963 uint16_t config_reg, scsi_control; 3964 struct device_reg __iomem *reg = ha->iobase; 3965 3966 if (ha->bus_settings[bus].scsi_bus_dead) { 3967 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); 3968 config_reg = RD_REG_WORD(®->cfg_1); 3969 WRT_REG_WORD(®->cfg_1, SET_SXP_BANK); 3970 scsi_control = RD_REG_WORD(®->scsiControlPins); 3971 WRT_REG_WORD(®->cfg_1, config_reg); 3972 WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC); 3973 3974 if (scsi_control == SCSI_PHASE_INVALID) { 3975 ha->bus_settings[bus].scsi_bus_dead = 1; 3976 #if 0 3977 CMD_RESULT(cp) = DID_NO_CONNECT << 16; 3978 CMD_HANDLE(cp) = INVALID_HANDLE; 3979 /* ha->actthreads--; */ 3980 3981 (*(cp)->scsi_done)(cp); 3982 #endif 3983 return 1; /* bus is dead */ 3984 } else { 3985 ha->bus_settings[bus].scsi_bus_dead = 0; 3986 ha->bus_settings[bus].failed_reset_count = 0; 3987 } 3988 } 3989 return 0; /* bus is not dead */ 3990 } 3991 3992 static void 3993 qla1280_get_target_parameters(struct scsi_qla_host *ha, 3994 struct scsi_device *device) 3995 { 3996 uint16_t mb[MAILBOX_REGISTER_COUNT]; 3997 int bus, target, lun; 3998 3999 bus = device->channel; 4000 target = device->id; 4001 lun = device->lun; 4002 4003 4004 mb[0] = MBC_GET_TARGET_PARAMETERS; 4005 mb[1] = (uint16_t) (bus ? target | BIT_7 : target); 4006 mb[1] <<= 8; 4007 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0, 4008 &mb[0]); 4009 4010 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun); 4011 4012 if (mb[3] != 0) { 4013 printk(" Sync: period %d, offset %d", 4014 (mb[3] & 0xff), (mb[3] >> 8)); 4015 if (mb[2] & BIT_13) 4016 printk(", Wide"); 4017 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2) 4018 printk(", DT"); 4019 } else 4020 printk(" Async"); 4021 4022 if (device->simple_tags) 4023 printk(", Tagged queuing: depth %d", device->queue_depth); 4024 printk("\n"); 4025 } 4026 4027 4028 #if DEBUG_QLA1280 4029 static void 4030 __qla1280_dump_buffer(char *b, int size) 4031 { 4032 int cnt; 4033 u8 c; 4034 4035 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah " 4036 "Bh Ch Dh Eh Fh\n"); 4037 printk(KERN_DEBUG "---------------------------------------------" 4038 "------------------\n"); 4039 4040 for (cnt = 0; cnt < size;) { 4041 c = *b++; 4042 4043 printk("0x%02x", c); 4044 cnt++; 4045 if (!(cnt % 16)) 4046 printk("\n"); 4047 else 4048 printk(" "); 4049 } 4050 if (cnt % 16) 4051 printk("\n"); 4052 } 4053 4054 /************************************************************************** 4055 * ql1280_print_scsi_cmd 4056 * 4057 **************************************************************************/ 4058 static void 4059 __qla1280_print_scsi_cmd(struct scsi_cmnd *cmd) 4060 { 4061 struct scsi_qla_host *ha; 4062 struct Scsi_Host *host = CMD_HOST(cmd); 4063 struct srb *sp; 4064 /* struct scatterlist *sg; */ 4065 4066 int i; 4067 ha = (struct scsi_qla_host *)host->hostdata; 4068 4069 sp = (struct srb *)CMD_SP(cmd); 4070 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd)); 4071 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n", 4072 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd), 4073 CMD_CDBLEN(cmd)); 4074 printk(" CDB = "); 4075 for (i = 0; i < cmd->cmd_len; i++) { 4076 printk("0x%02x ", cmd->cmnd[i]); 4077 } 4078 printk(" seg_cnt =%d\n", cmd->use_sg); 4079 printk(" request buffer=0x%p, request buffer len=0x%x\n", 4080 cmd->request_buffer, cmd->request_bufflen); 4081 /* if (cmd->use_sg) 4082 { 4083 sg = (struct scatterlist *) cmd->request_buffer; 4084 printk(" SG buffer: \n"); 4085 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist))); 4086 } */ 4087 printk(" tag=%d, transfersize=0x%x \n", 4088 cmd->tag, cmd->transfersize); 4089 printk(" Pid=%li, SP=0x%p\n", cmd->pid, CMD_SP(cmd)); 4090 printk(" underflow size = 0x%x, direction=0x%x\n", 4091 cmd->underflow, cmd->sc_data_direction); 4092 } 4093 4094 /************************************************************************** 4095 * ql1280_dump_device 4096 * 4097 **************************************************************************/ 4098 static void 4099 ql1280_dump_device(struct scsi_qla_host *ha) 4100 { 4101 4102 struct scsi_cmnd *cp; 4103 struct srb *sp; 4104 int i; 4105 4106 printk(KERN_DEBUG "Outstanding Commands on controller:\n"); 4107 4108 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { 4109 if ((sp = ha->outstanding_cmds[i]) == NULL) 4110 continue; 4111 if ((cp = sp->cmd) == NULL) 4112 continue; 4113 qla1280_print_scsi_cmd(1, cp); 4114 } 4115 } 4116 #endif 4117 4118 4119 enum tokens { 4120 TOKEN_NVRAM, 4121 TOKEN_SYNC, 4122 TOKEN_WIDE, 4123 TOKEN_PPR, 4124 TOKEN_VERBOSE, 4125 TOKEN_DEBUG, 4126 }; 4127 4128 struct setup_tokens { 4129 char *token; 4130 int val; 4131 }; 4132 4133 static struct setup_tokens setup_token[] __initdata = 4134 { 4135 { "nvram", TOKEN_NVRAM }, 4136 { "sync", TOKEN_SYNC }, 4137 { "wide", TOKEN_WIDE }, 4138 { "ppr", TOKEN_PPR }, 4139 { "verbose", TOKEN_VERBOSE }, 4140 { "debug", TOKEN_DEBUG }, 4141 }; 4142 4143 4144 /************************************************************************** 4145 * qla1280_setup 4146 * 4147 * Handle boot parameters. This really needs to be changed so one 4148 * can specify per adapter parameters. 4149 **************************************************************************/ 4150 static int __init 4151 qla1280_setup(char *s) 4152 { 4153 char *cp, *ptr; 4154 unsigned long val; 4155 int toke; 4156 4157 cp = s; 4158 4159 while (cp && (ptr = strchr(cp, ':'))) { 4160 ptr++; 4161 if (!strcmp(ptr, "yes")) { 4162 val = 0x10000; 4163 ptr += 3; 4164 } else if (!strcmp(ptr, "no")) { 4165 val = 0; 4166 ptr += 2; 4167 } else 4168 val = simple_strtoul(ptr, &ptr, 0); 4169 4170 switch ((toke = qla1280_get_token(cp))) { 4171 case TOKEN_NVRAM: 4172 if (!val) 4173 driver_setup.no_nvram = 1; 4174 break; 4175 case TOKEN_SYNC: 4176 if (!val) 4177 driver_setup.no_sync = 1; 4178 else if (val != 0x10000) 4179 driver_setup.sync_mask = val; 4180 break; 4181 case TOKEN_WIDE: 4182 if (!val) 4183 driver_setup.no_wide = 1; 4184 else if (val != 0x10000) 4185 driver_setup.wide_mask = val; 4186 break; 4187 case TOKEN_PPR: 4188 if (!val) 4189 driver_setup.no_ppr = 1; 4190 else if (val != 0x10000) 4191 driver_setup.ppr_mask = val; 4192 break; 4193 case TOKEN_VERBOSE: 4194 qla1280_verbose = val; 4195 break; 4196 default: 4197 printk(KERN_INFO "qla1280: unknown boot option %s\n", 4198 cp); 4199 } 4200 4201 cp = strchr(ptr, ';'); 4202 if (cp) 4203 cp++; 4204 else { 4205 break; 4206 } 4207 } 4208 return 1; 4209 } 4210 4211 4212 static int __init 4213 qla1280_get_token(char *str) 4214 { 4215 char *sep; 4216 long ret = -1; 4217 int i; 4218 4219 sep = strchr(str, ':'); 4220 4221 if (sep) { 4222 for (i = 0; i < ARRAY_SIZE(setup_token); i++) { 4223 if (!strncmp(setup_token[i].token, str, (sep - str))) { 4224 ret = setup_token[i].val; 4225 break; 4226 } 4227 } 4228 } 4229 4230 return ret; 4231 } 4232 4233 4234 static struct scsi_host_template qla1280_driver_template = { 4235 .module = THIS_MODULE, 4236 .proc_name = "qla1280", 4237 .name = "Qlogic ISP 1280/12160", 4238 .info = qla1280_info, 4239 .slave_configure = qla1280_slave_configure, 4240 .queuecommand = qla1280_queuecommand, 4241 .eh_abort_handler = qla1280_eh_abort, 4242 .eh_device_reset_handler= qla1280_eh_device_reset, 4243 .eh_bus_reset_handler = qla1280_eh_bus_reset, 4244 .eh_host_reset_handler = qla1280_eh_adapter_reset, 4245 .bios_param = qla1280_biosparam, 4246 .can_queue = 0xfffff, 4247 .this_id = -1, 4248 .sg_tablesize = SG_ALL, 4249 .cmd_per_lun = 1, 4250 .use_clustering = ENABLE_CLUSTERING, 4251 }; 4252 4253 4254 static int __devinit 4255 qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) 4256 { 4257 int devnum = id->driver_data; 4258 struct qla_boards *bdp = &ql1280_board_tbl[devnum]; 4259 struct Scsi_Host *host; 4260 struct scsi_qla_host *ha; 4261 int error = -ENODEV; 4262 4263 /* Bypass all AMI SUBSYS VENDOR IDs */ 4264 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) { 4265 printk(KERN_INFO 4266 "qla1280: Skipping AMI SubSys Vendor ID Chip\n"); 4267 goto error; 4268 } 4269 4270 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n", 4271 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn)); 4272 4273 if (pci_enable_device(pdev)) { 4274 printk(KERN_WARNING 4275 "qla1280: Failed to enabled pci device, aborting.\n"); 4276 goto error; 4277 } 4278 4279 pci_set_master(pdev); 4280 4281 error = -ENOMEM; 4282 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha)); 4283 if (!host) { 4284 printk(KERN_WARNING 4285 "qla1280: Failed to register host, aborting.\n"); 4286 goto error_disable_device; 4287 } 4288 4289 ha = (struct scsi_qla_host *)host->hostdata; 4290 memset(ha, 0, sizeof(struct scsi_qla_host)); 4291 4292 ha->pdev = pdev; 4293 ha->devnum = devnum; /* specifies microcode load address */ 4294 4295 #ifdef QLA_64BIT_PTR 4296 if (pci_set_dma_mask(ha->pdev, (dma_addr_t) ~ 0ULL)) { 4297 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) { 4298 printk(KERN_WARNING "scsi(%li): Unable to set a " 4299 "suitable DMA mask - aborting\n", ha->host_no); 4300 error = -ENODEV; 4301 goto error_free_irq; 4302 } 4303 } else 4304 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n", 4305 ha->host_no); 4306 #else 4307 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) { 4308 printk(KERN_WARNING "scsi(%li): Unable to set a " 4309 "suitable DMA mask - aborting\n", ha->host_no); 4310 error = -ENODEV; 4311 goto error_free_irq; 4312 } 4313 #endif 4314 4315 ha->request_ring = pci_alloc_consistent(ha->pdev, 4316 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)), 4317 &ha->request_dma); 4318 if (!ha->request_ring) { 4319 printk(KERN_INFO "qla1280: Failed to get request memory\n"); 4320 goto error_put_host; 4321 } 4322 4323 ha->response_ring = pci_alloc_consistent(ha->pdev, 4324 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)), 4325 &ha->response_dma); 4326 if (!ha->response_ring) { 4327 printk(KERN_INFO "qla1280: Failed to get response memory\n"); 4328 goto error_free_request_ring; 4329 } 4330 4331 ha->ports = bdp->numPorts; 4332 4333 ha->host = host; 4334 ha->host_no = host->host_no; 4335 4336 host->irq = pdev->irq; 4337 host->max_channel = bdp->numPorts - 1; 4338 host->max_lun = MAX_LUNS - 1; 4339 host->max_id = MAX_TARGETS; 4340 host->max_sectors = 1024; 4341 host->unique_id = host->host_no; 4342 4343 error = -ENODEV; 4344 4345 #if MEMORY_MAPPED_IO 4346 ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1), 4347 pci_resource_len(ha->pdev, 1)); 4348 if (!ha->mmpbase) { 4349 printk(KERN_INFO "qla1280: Unable to map I/O memory\n"); 4350 goto error_free_response_ring; 4351 } 4352 4353 host->base = (unsigned long)ha->mmpbase; 4354 ha->iobase = (struct device_reg __iomem *)ha->mmpbase; 4355 #else 4356 host->io_port = pci_resource_start(ha->pdev, 0); 4357 if (!request_region(host->io_port, 0xff, "qla1280")) { 4358 printk(KERN_INFO "qla1280: Failed to reserve i/o region " 4359 "0x%04lx-0x%04lx - already in use\n", 4360 host->io_port, host->io_port + 0xff); 4361 goto error_free_response_ring; 4362 } 4363 4364 ha->iobase = (struct device_reg *)host->io_port; 4365 #endif 4366 4367 INIT_LIST_HEAD(&ha->done_q); 4368 4369 /* Disable ISP interrupts. */ 4370 qla1280_disable_intrs(ha); 4371 4372 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED, 4373 "qla1280", ha)) { 4374 printk("qla1280 : Failed to reserve interrupt %d already " 4375 "in use\n", pdev->irq); 4376 goto error_release_region; 4377 } 4378 4379 /* load the F/W, read paramaters, and init the H/W */ 4380 if (qla1280_initialize_adapter(ha)) { 4381 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n"); 4382 goto error_free_irq; 4383 } 4384 4385 /* set our host ID (need to do something about our two IDs) */ 4386 host->this_id = ha->bus_settings[0].id; 4387 4388 pci_set_drvdata(pdev, host); 4389 4390 error = scsi_add_host(host, &pdev->dev); 4391 if (error) 4392 goto error_disable_adapter; 4393 scsi_scan_host(host); 4394 4395 return 0; 4396 4397 error_disable_adapter: 4398 qla1280_disable_intrs(ha); 4399 error_free_irq: 4400 free_irq(pdev->irq, ha); 4401 error_release_region: 4402 #if MEMORY_MAPPED_IO 4403 iounmap(ha->mmpbase); 4404 #else 4405 release_region(host->io_port, 0xff); 4406 #endif 4407 error_free_response_ring: 4408 pci_free_consistent(ha->pdev, 4409 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)), 4410 ha->response_ring, ha->response_dma); 4411 error_free_request_ring: 4412 pci_free_consistent(ha->pdev, 4413 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)), 4414 ha->request_ring, ha->request_dma); 4415 error_put_host: 4416 scsi_host_put(host); 4417 error_disable_device: 4418 pci_disable_device(pdev); 4419 error: 4420 return error; 4421 } 4422 4423 4424 static void __devexit 4425 qla1280_remove_one(struct pci_dev *pdev) 4426 { 4427 struct Scsi_Host *host = pci_get_drvdata(pdev); 4428 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; 4429 4430 scsi_remove_host(host); 4431 4432 qla1280_disable_intrs(ha); 4433 4434 free_irq(pdev->irq, ha); 4435 4436 #if MEMORY_MAPPED_IO 4437 iounmap(ha->mmpbase); 4438 #else 4439 release_region(host->io_port, 0xff); 4440 #endif 4441 4442 pci_free_consistent(ha->pdev, 4443 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))), 4444 ha->request_ring, ha->request_dma); 4445 pci_free_consistent(ha->pdev, 4446 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))), 4447 ha->response_ring, ha->response_dma); 4448 4449 pci_disable_device(pdev); 4450 4451 scsi_host_put(host); 4452 } 4453 4454 static struct pci_driver qla1280_pci_driver = { 4455 .name = "qla1280", 4456 .id_table = qla1280_pci_tbl, 4457 .probe = qla1280_probe_one, 4458 .remove = __devexit_p(qla1280_remove_one), 4459 }; 4460 4461 static int __init 4462 qla1280_init(void) 4463 { 4464 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) { 4465 printk(KERN_WARNING 4466 "qla1280: struct srb too big, aborting\n"); 4467 return -EINVAL; 4468 } 4469 4470 #ifdef MODULE 4471 /* 4472 * If we are called as a module, the qla1280 pointer may not be null 4473 * and it would point to our bootup string, just like on the lilo 4474 * command line. IF not NULL, then process this config string with 4475 * qla1280_setup 4476 * 4477 * Boot time Options 4478 * To add options at boot time add a line to your lilo.conf file like: 4479 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}" 4480 * which will result in the first four devices on the first two 4481 * controllers being set to a tagged queue depth of 32. 4482 */ 4483 if (qla1280) 4484 qla1280_setup(qla1280); 4485 #endif 4486 4487 return pci_module_init(&qla1280_pci_driver); 4488 } 4489 4490 static void __exit 4491 qla1280_exit(void) 4492 { 4493 pci_unregister_driver(&qla1280_pci_driver); 4494 } 4495 4496 module_init(qla1280_init); 4497 module_exit(qla1280_exit); 4498 4499 4500 MODULE_AUTHOR("Qlogic & Jes Sorensen"); 4501 MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver"); 4502 MODULE_LICENSE("GPL"); 4503 MODULE_VERSION(QLA1280_VERSION); 4504 4505 /* 4506 * Overrides for Emacs so that we almost follow Linus's tabbing style. 4507 * Emacs will notice this stuff at the end of the file and automatically 4508 * adjust the settings for this buffer only. This must remain at the end 4509 * of the file. 4510 * --------------------------------------------------------------------------- 4511 * Local variables: 4512 * c-basic-offset: 8 4513 * tab-width: 8 4514 * End: 4515 */ 4516