1 /****************************************************************************** 2 * QLOGIC LINUX SOFTWARE 3 * 4 * QLogic QLA1280 (Ultra2) and QLA12160 (Ultra3) SCSI driver 5 * Copyright (C) 2000 Qlogic Corporation (www.qlogic.com) 6 * Copyright (C) 2001-2004 Jes Sorensen, Wild Open Source Inc. 7 * Copyright (C) 2003-2004 Christoph Hellwig 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2, or (at your option) any 12 * later version. 13 * 14 * This program is distributed in the hope that it will be useful, but 15 * WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * General Public License for more details. 18 * 19 ******************************************************************************/ 20 #define QLA1280_VERSION "3.26" 21 /***************************************************************************** 22 Revision History: 23 Rev 3.26, January 16, 2006 Jes Sorensen 24 - Ditch all < 2.6 support 25 Rev 3.25.1, February 10, 2005 Christoph Hellwig 26 - use pci_map_single to map non-S/G requests 27 - remove qla1280_proc_info 28 Rev 3.25, September 28, 2004, Christoph Hellwig 29 - add support for ISP1020/1040 30 - don't include "scsi.h" anymore for 2.6.x 31 Rev 3.24.4 June 7, 2004 Christoph Hellwig 32 - restructure firmware loading, cleanup initialization code 33 - prepare support for ISP1020/1040 chips 34 Rev 3.24.3 January 19, 2004, Jes Sorensen 35 - Handle PCI DMA mask settings correctly 36 - Correct order of error handling in probe_one, free_irq should not 37 be called if request_irq failed 38 Rev 3.24.2 January 19, 2004, James Bottomley & Andrew Vasquez 39 - Big endian fixes (James) 40 - Remove bogus IOCB content on zero data transfer commands (Andrew) 41 Rev 3.24.1 January 5, 2004, Jes Sorensen 42 - Initialize completion queue to avoid OOPS on probe 43 - Handle interrupts during mailbox testing 44 Rev 3.24 November 17, 2003, Christoph Hellwig 45 - use struct list_head for completion queue 46 - avoid old Scsi_FOO typedefs 47 - cleanup 2.4 compat glue a bit 48 - use <scsi/scsi_*.h> headers on 2.6 instead of "scsi.h" 49 - make initialization for memory mapped vs port I/O more similar 50 - remove broken pci config space manipulation 51 - kill more cruft 52 - this is an almost perfect 2.6 scsi driver now! ;) 53 Rev 3.23.39 December 17, 2003, Jes Sorensen 54 - Delete completion queue from srb if mailbox command failed to 55 to avoid qla1280_done completeting qla1280_error_action's 56 obsolete context 57 - Reduce arguments for qla1280_done 58 Rev 3.23.38 October 18, 2003, Christoph Hellwig 59 - Convert to new-style hotplugable driver for 2.6 60 - Fix missing scsi_unregister/scsi_host_put on HBA removal 61 - Kill some more cruft 62 Rev 3.23.37 October 1, 2003, Jes Sorensen 63 - Make MMIO depend on CONFIG_X86_VISWS instead of yet another 64 random CONFIG option 65 - Clean up locking in probe path 66 Rev 3.23.36 October 1, 2003, Christoph Hellwig 67 - queuecommand only ever receives new commands - clear flags 68 - Reintegrate lost fixes from Linux 2.5 69 Rev 3.23.35 August 14, 2003, Jes Sorensen 70 - Build against 2.6 71 Rev 3.23.34 July 23, 2003, Jes Sorensen 72 - Remove pointless TRUE/FALSE macros 73 - Clean up vchan handling 74 Rev 3.23.33 July 3, 2003, Jes Sorensen 75 - Don't define register access macros before define determining MMIO. 76 This just happend to work out on ia64 but not elsewhere. 77 - Don't try and read from the card while it is in reset as 78 it won't respond and causes an MCA 79 Rev 3.23.32 June 23, 2003, Jes Sorensen 80 - Basic support for boot time arguments 81 Rev 3.23.31 June 8, 2003, Jes Sorensen 82 - Reduce boot time messages 83 Rev 3.23.30 June 6, 2003, Jes Sorensen 84 - Do not enable sync/wide/ppr before it has been determined 85 that the target device actually supports it 86 - Enable DMA arbitration for multi channel controllers 87 Rev 3.23.29 June 3, 2003, Jes Sorensen 88 - Port to 2.5.69 89 Rev 3.23.28 June 3, 2003, Jes Sorensen 90 - Eliminate duplicate marker commands on bus resets 91 - Handle outstanding commands appropriately on bus/device resets 92 Rev 3.23.27 May 28, 2003, Jes Sorensen 93 - Remove bogus input queue code, let the Linux SCSI layer do the work 94 - Clean up NVRAM handling, only read it once from the card 95 - Add a number of missing default nvram parameters 96 Rev 3.23.26 Beta May 28, 2003, Jes Sorensen 97 - Use completion queue for mailbox commands instead of busy wait 98 Rev 3.23.25 Beta May 27, 2003, James Bottomley 99 - Migrate to use new error handling code 100 Rev 3.23.24 Beta May 21, 2003, James Bottomley 101 - Big endian support 102 - Cleanup data direction code 103 Rev 3.23.23 Beta May 12, 2003, Jes Sorensen 104 - Switch to using MMIO instead of PIO 105 Rev 3.23.22 Beta April 15, 2003, Jes Sorensen 106 - Fix PCI parity problem with 12160 during reset. 107 Rev 3.23.21 Beta April 14, 2003, Jes Sorensen 108 - Use pci_map_page()/pci_unmap_page() instead of map_single version. 109 Rev 3.23.20 Beta April 9, 2003, Jes Sorensen 110 - Remove < 2.4.x support 111 - Introduce HOST_LOCK to make the spin lock changes portable. 112 - Remove a bunch of idiotic and unnecessary typedef's 113 - Kill all leftovers of target-mode support which never worked anyway 114 Rev 3.23.19 Beta April 11, 2002, Linus Torvalds 115 - Do qla1280_pci_config() before calling request_irq() and 116 request_region() 117 - Use pci_dma_hi32() to handle upper word of DMA addresses instead 118 of large shifts 119 - Hand correct arguments to free_irq() in case of failure 120 Rev 3.23.18 Beta April 11, 2002, Jes Sorensen 121 - Run source through Lindent and clean up the output 122 Rev 3.23.17 Beta April 11, 2002, Jes Sorensen 123 - Update SCSI firmware to qla1280 v8.15.00 and qla12160 v10.04.32 124 Rev 3.23.16 Beta March 19, 2002, Jes Sorensen 125 - Rely on mailbox commands generating interrupts - do not 126 run qla1280_isr() from ql1280_mailbox_command() 127 - Remove device_reg_t 128 - Integrate ql12160_set_target_parameters() with 1280 version 129 - Make qla1280_setup() non static 130 - Do not call qla1280_check_for_dead_scsi_bus() on every I/O request 131 sent to the card - this command pauses the firmare!!! 132 Rev 3.23.15 Beta March 19, 2002, Jes Sorensen 133 - Clean up qla1280.h - remove obsolete QL_DEBUG_LEVEL_x definitions 134 - Remove a pile of pointless and confusing (srb_t **) and 135 (scsi_lu_t *) typecasts 136 - Explicit mark that we do not use the new error handling (for now) 137 - Remove scsi_qla_host_t and use 'struct' instead 138 - Remove in_abort, watchdog_enabled, dpc, dpc_sched, bios_enabled, 139 pci_64bit_slot flags which weren't used for anything anyway 140 - Grab host->host_lock while calling qla1280_isr() from abort() 141 - Use spin_lock()/spin_unlock() in qla1280_intr_handler() - we 142 do not need to save/restore flags in the interrupt handler 143 - Enable interrupts early (before any mailbox access) in preparation 144 for cleaning up the mailbox handling 145 Rev 3.23.14 Beta March 14, 2002, Jes Sorensen 146 - Further cleanups. Remove all trace of QL_DEBUG_LEVEL_x and replace 147 it with proper use of dprintk(). 148 - Make qla1280_print_scsi_cmd() and qla1280_dump_buffer() both take 149 a debug level argument to determine if data is to be printed 150 - Add KERN_* info to printk() 151 Rev 3.23.13 Beta March 14, 2002, Jes Sorensen 152 - Significant cosmetic cleanups 153 - Change debug code to use dprintk() and remove #if mess 154 Rev 3.23.12 Beta March 13, 2002, Jes Sorensen 155 - More cosmetic cleanups, fix places treating return as function 156 - use cpu_relax() in qla1280_debounce_register() 157 Rev 3.23.11 Beta March 13, 2002, Jes Sorensen 158 - Make it compile under 2.5.5 159 Rev 3.23.10 Beta October 1, 2001, Jes Sorensen 160 - Do no typecast short * to long * in QL1280BoardTbl, this 161 broke miserably on big endian boxes 162 Rev 3.23.9 Beta September 30, 2001, Jes Sorensen 163 - Remove pre 2.2 hack for checking for reentrance in interrupt handler 164 - Make data types used to receive from SCSI_{BUS,TCN,LUN}_32 165 unsigned int to match the types from struct scsi_cmnd 166 Rev 3.23.8 Beta September 29, 2001, Jes Sorensen 167 - Remove bogus timer_t typedef from qla1280.h 168 - Remove obsolete pre 2.2 PCI setup code, use proper #define's 169 for PCI_ values, call pci_set_master() 170 - Fix memleak of qla1280_buffer on module unload 171 - Only compile module parsing code #ifdef MODULE - should be 172 changed to use individual MODULE_PARM's later 173 - Remove dummy_buffer that was never modified nor printed 174 - ENTER()/LEAVE() are noops unless QL_DEBUG_LEVEL_3, hence remove 175 #ifdef QL_DEBUG_LEVEL_3/#endif around ENTER()/LEAVE() calls 176 - Remove \r from print statements, this is Linux, not DOS 177 - Remove obsolete QLA1280_{SCSILU,INTR,RING}_{LOCK,UNLOCK} 178 dummy macros 179 - Remove C++ compile hack in header file as Linux driver are not 180 supposed to be compiled as C++ 181 - Kill MS_64BITS macro as it makes the code more readable 182 - Remove unnecessary flags.in_interrupts bit 183 Rev 3.23.7 Beta August 20, 2001, Jes Sorensen 184 - Dont' check for set flags on q->q_flag one by one in qla1280_next() 185 - Check whether the interrupt was generated by the QLA1280 before 186 doing any processing 187 - qla1280_status_entry(): Only zero out part of sense_buffer that 188 is not being copied into 189 - Remove more superflouous typecasts 190 - qla1280_32bit_start_scsi() replace home-brew memcpy() with memcpy() 191 Rev 3.23.6 Beta August 20, 2001, Tony Luck, Intel 192 - Don't walk the entire list in qla1280_putq_t() just to directly 193 grab the pointer to the last element afterwards 194 Rev 3.23.5 Beta August 9, 2001, Jes Sorensen 195 - Don't use IRQF_DISABLED, it's use is deprecated for this kinda driver 196 Rev 3.23.4 Beta August 8, 2001, Jes Sorensen 197 - Set dev->max_sectors to 1024 198 Rev 3.23.3 Beta August 6, 2001, Jes Sorensen 199 - Provide compat macros for pci_enable_device(), pci_find_subsys() 200 and scsi_set_pci_device() 201 - Call scsi_set_pci_device() for all devices 202 - Reduce size of kernel version dependent device probe code 203 - Move duplicate probe/init code to separate function 204 - Handle error if qla1280_mem_alloc() fails 205 - Kill OFFSET() macro and use Linux's PCI definitions instead 206 - Kill private structure defining PCI config space (struct config_reg) 207 - Only allocate I/O port region if not in MMIO mode 208 - Remove duplicate (unused) sanity check of sife of srb_t 209 Rev 3.23.2 Beta August 6, 2001, Jes Sorensen 210 - Change home-brew memset() implementations to use memset() 211 - Remove all references to COMTRACE() - accessing a PC's COM2 serial 212 port directly is not legal under Linux. 213 Rev 3.23.1 Beta April 24, 2001, Jes Sorensen 214 - Remove pre 2.2 kernel support 215 - clean up 64 bit DMA setting to use 2.4 API (provide backwards compat) 216 - Fix MMIO access to use readl/writel instead of directly 217 dereferencing pointers 218 - Nuke MSDOS debugging code 219 - Change true/false data types to int from uint8_t 220 - Use int for counters instead of uint8_t etc. 221 - Clean up size & byte order conversion macro usage 222 Rev 3.23 Beta January 11, 2001 BN Qlogic 223 - Added check of device_id when handling non 224 QLA12160s during detect(). 225 Rev 3.22 Beta January 5, 2001 BN Qlogic 226 - Changed queue_task() to schedule_task() 227 for kernels 2.4.0 and higher. 228 Note: 2.4.0-testxx kernels released prior to 229 the actual 2.4.0 kernel release on January 2001 230 will get compile/link errors with schedule_task(). 231 Please update your kernel to released 2.4.0 level, 232 or comment lines in this file flagged with 3.22 233 to resolve compile/link error of schedule_task(). 234 - Added -DCONFIG_SMP in addition to -D__SMP__ 235 in Makefile for 2.4.0 builds of driver as module. 236 Rev 3.21 Beta January 4, 2001 BN Qlogic 237 - Changed criteria of 64/32 Bit mode of HBA 238 operation according to BITS_PER_LONG rather 239 than HBA's NVRAM setting of >4Gig memory bit; 240 so that the HBA auto-configures without the need 241 to setup each system individually. 242 Rev 3.20 Beta December 5, 2000 BN Qlogic 243 - Added priority handling to IA-64 onboard SCSI 244 ISP12160 chip for kernels greater than 2.3.18. 245 - Added irqrestore for qla1280_intr_handler. 246 - Enabled /proc/scsi/qla1280 interface. 247 - Clear /proc/scsi/qla1280 counters in detect(). 248 Rev 3.19 Beta October 13, 2000 BN Qlogic 249 - Declare driver_template for new kernel 250 (2.4.0 and greater) scsi initialization scheme. 251 - Update /proc/scsi entry for 2.3.18 kernels and 252 above as qla1280 253 Rev 3.18 Beta October 10, 2000 BN Qlogic 254 - Changed scan order of adapters to map 255 the QLA12160 followed by the QLA1280. 256 Rev 3.17 Beta September 18, 2000 BN Qlogic 257 - Removed warnings for 32 bit 2.4.x compiles 258 - Corrected declared size for request and response 259 DMA addresses that are kept in each ha 260 Rev. 3.16 Beta August 25, 2000 BN Qlogic 261 - Corrected 64 bit addressing issue on IA-64 262 where the upper 32 bits were not properly 263 passed to the RISC engine. 264 Rev. 3.15 Beta August 22, 2000 BN Qlogic 265 - Modified qla1280_setup_chip to properly load 266 ISP firmware for greater that 4 Gig memory on IA-64 267 Rev. 3.14 Beta August 16, 2000 BN Qlogic 268 - Added setting of dma_mask to full 64 bit 269 if flags.enable_64bit_addressing is set in NVRAM 270 Rev. 3.13 Beta August 16, 2000 BN Qlogic 271 - Use new PCI DMA mapping APIs for 2.4.x kernel 272 Rev. 3.12 July 18, 2000 Redhat & BN Qlogic 273 - Added check of pci_enable_device to detect() for 2.3.x 274 - Use pci_resource_start() instead of 275 pdev->resource[0].start in detect() for 2.3.x 276 - Updated driver version 277 Rev. 3.11 July 14, 2000 BN Qlogic 278 - Updated SCSI Firmware to following versions: 279 qla1x80: 8.13.08 280 qla1x160: 10.04.08 281 - Updated driver version to 3.11 282 Rev. 3.10 June 23, 2000 BN Qlogic 283 - Added filtering of AMI SubSys Vendor ID devices 284 Rev. 3.9 285 - DEBUG_QLA1280 undefined and new version BN Qlogic 286 Rev. 3.08b May 9, 2000 MD Dell 287 - Added logic to check against AMI subsystem vendor ID 288 Rev. 3.08 May 4, 2000 DG Qlogic 289 - Added logic to check for PCI subsystem ID. 290 Rev. 3.07 Apr 24, 2000 DG & BN Qlogic 291 - Updated SCSI Firmware to following versions: 292 qla12160: 10.01.19 293 qla1280: 8.09.00 294 Rev. 3.06 Apr 12, 2000 DG & BN Qlogic 295 - Internal revision; not released 296 Rev. 3.05 Mar 28, 2000 DG & BN Qlogic 297 - Edit correction for virt_to_bus and PROC. 298 Rev. 3.04 Mar 28, 2000 DG & BN Qlogic 299 - Merge changes from ia64 port. 300 Rev. 3.03 Mar 28, 2000 BN Qlogic 301 - Increase version to reflect new code drop with compile fix 302 of issue with inclusion of linux/spinlock for 2.3 kernels 303 Rev. 3.02 Mar 15, 2000 BN Qlogic 304 - Merge qla1280_proc_info from 2.10 code base 305 Rev. 3.01 Feb 10, 2000 BN Qlogic 306 - Corrected code to compile on a 2.2.x kernel. 307 Rev. 3.00 Jan 17, 2000 DG Qlogic 308 - Added 64-bit support. 309 Rev. 2.07 Nov 9, 1999 DG Qlogic 310 - Added new routine to set target parameters for ISP12160. 311 Rev. 2.06 Sept 10, 1999 DG Qlogic 312 - Added support for ISP12160 Ultra 3 chip. 313 Rev. 2.03 August 3, 1999 Fred Lewis, Intel DuPont 314 - Modified code to remove errors generated when compiling with 315 Cygnus IA64 Compiler. 316 - Changed conversion of pointers to unsigned longs instead of integers. 317 - Changed type of I/O port variables from uint32_t to unsigned long. 318 - Modified OFFSET macro to work with 64-bit as well as 32-bit. 319 - Changed sprintf and printk format specifiers for pointers to %p. 320 - Changed some int to long type casts where needed in sprintf & printk. 321 - Added l modifiers to sprintf and printk format specifiers for longs. 322 - Removed unused local variables. 323 Rev. 1.20 June 8, 1999 DG, Qlogic 324 Changes to support RedHat release 6.0 (kernel 2.2.5). 325 - Added SCSI exclusive access lock (io_request_lock) when accessing 326 the adapter. 327 - Added changes for the new LINUX interface template. Some new error 328 handling routines have been added to the template, but for now we 329 will use the old ones. 330 - Initial Beta Release. 331 *****************************************************************************/ 332 333 334 #include <linux/module.h> 335 336 #include <linux/version.h> 337 #include <linux/types.h> 338 #include <linux/string.h> 339 #include <linux/errno.h> 340 #include <linux/kernel.h> 341 #include <linux/ioport.h> 342 #include <linux/delay.h> 343 #include <linux/timer.h> 344 #include <linux/pci.h> 345 #include <linux/proc_fs.h> 346 #include <linux/stat.h> 347 #include <linux/slab.h> 348 #include <linux/pci_ids.h> 349 #include <linux/interrupt.h> 350 #include <linux/init.h> 351 #include <linux/dma-mapping.h> 352 353 #include <asm/io.h> 354 #include <asm/irq.h> 355 #include <asm/byteorder.h> 356 #include <asm/processor.h> 357 #include <asm/types.h> 358 #include <asm/system.h> 359 360 #include <scsi/scsi.h> 361 #include <scsi/scsi_cmnd.h> 362 #include <scsi/scsi_device.h> 363 #include <scsi/scsi_host.h> 364 #include <scsi/scsi_tcq.h> 365 366 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 367 #include <asm/sn/io.h> 368 #endif 369 370 #if LINUX_VERSION_CODE < 0x020600 371 #error "Kernels older than 2.6.0 are no longer supported" 372 #endif 373 374 375 /* 376 * Compile time Options: 377 * 0 - Disable and 1 - Enable 378 */ 379 #define DEBUG_QLA1280_INTR 0 380 #define DEBUG_PRINT_NVRAM 0 381 #define DEBUG_QLA1280 0 382 383 /* 384 * The SGI VISWS is broken and doesn't support MMIO ;-( 385 */ 386 #ifdef CONFIG_X86_VISWS 387 #define MEMORY_MAPPED_IO 0 388 #else 389 #define MEMORY_MAPPED_IO 1 390 #endif 391 392 #define UNIQUE_FW_NAME 393 #include "qla1280.h" 394 #include "ql12160_fw.h" /* ISP RISC codes */ 395 #include "ql1280_fw.h" 396 #include "ql1040_fw.h" 397 398 #ifndef BITS_PER_LONG 399 #error "BITS_PER_LONG not defined!" 400 #endif 401 #if (BITS_PER_LONG == 64) || defined CONFIG_HIGHMEM 402 #define QLA_64BIT_PTR 1 403 #endif 404 405 #ifdef QLA_64BIT_PTR 406 #define pci_dma_hi32(a) ((a >> 16) >> 16) 407 #else 408 #define pci_dma_hi32(a) 0 409 #endif 410 #define pci_dma_lo32(a) (a & 0xffffffff) 411 412 #define NVRAM_DELAY() udelay(500) /* 2 microseconds */ 413 414 #if defined(__ia64__) && !defined(ia64_platform_is) 415 #define ia64_platform_is(foo) (!strcmp(x, platform_name)) 416 #endif 417 418 419 #define IS_ISP1040(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020) 420 #define IS_ISP1x40(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1020 || \ 421 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP1240) 422 #define IS_ISP1x160(ha) (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP10160 || \ 423 ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP12160) 424 425 426 static int qla1280_probe_one(struct pci_dev *, const struct pci_device_id *); 427 static void qla1280_remove_one(struct pci_dev *); 428 429 /* 430 * QLogic Driver Support Function Prototypes. 431 */ 432 static void qla1280_done(struct scsi_qla_host *); 433 static int qla1280_get_token(char *); 434 static int qla1280_setup(char *s) __init; 435 436 /* 437 * QLogic ISP1280 Hardware Support Function Prototypes. 438 */ 439 static int qla1280_load_firmware(struct scsi_qla_host *); 440 static int qla1280_init_rings(struct scsi_qla_host *); 441 static int qla1280_nvram_config(struct scsi_qla_host *); 442 static int qla1280_mailbox_command(struct scsi_qla_host *, 443 uint8_t, uint16_t *); 444 static int qla1280_bus_reset(struct scsi_qla_host *, int); 445 static int qla1280_device_reset(struct scsi_qla_host *, int, int); 446 static int qla1280_abort_device(struct scsi_qla_host *, int, int, int); 447 static int qla1280_abort_command(struct scsi_qla_host *, struct srb *, int); 448 static int qla1280_abort_isp(struct scsi_qla_host *); 449 #ifdef QLA_64BIT_PTR 450 static int qla1280_64bit_start_scsi(struct scsi_qla_host *, struct srb *); 451 #else 452 static int qla1280_32bit_start_scsi(struct scsi_qla_host *, struct srb *); 453 #endif 454 static void qla1280_nv_write(struct scsi_qla_host *, uint16_t); 455 static void qla1280_poll(struct scsi_qla_host *); 456 static void qla1280_reset_adapter(struct scsi_qla_host *); 457 static void qla1280_marker(struct scsi_qla_host *, int, int, int, u8); 458 static void qla1280_isp_cmd(struct scsi_qla_host *); 459 static void qla1280_isr(struct scsi_qla_host *, struct list_head *); 460 static void qla1280_rst_aen(struct scsi_qla_host *); 461 static void qla1280_status_entry(struct scsi_qla_host *, struct response *, 462 struct list_head *); 463 static void qla1280_error_entry(struct scsi_qla_host *, struct response *, 464 struct list_head *); 465 static uint16_t qla1280_get_nvram_word(struct scsi_qla_host *, uint32_t); 466 static uint16_t qla1280_nvram_request(struct scsi_qla_host *, uint32_t); 467 static uint16_t qla1280_debounce_register(volatile uint16_t __iomem *); 468 static request_t *qla1280_req_pkt(struct scsi_qla_host *); 469 static int qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *, 470 unsigned int); 471 static void qla1280_get_target_parameters(struct scsi_qla_host *, 472 struct scsi_device *); 473 static int qla1280_set_target_parameters(struct scsi_qla_host *, int, int); 474 475 476 static struct qla_driver_setup driver_setup; 477 478 /* 479 * convert scsi data direction to request_t control flags 480 */ 481 static inline uint16_t 482 qla1280_data_direction(struct scsi_cmnd *cmnd) 483 { 484 switch(cmnd->sc_data_direction) { 485 case DMA_FROM_DEVICE: 486 return BIT_5; 487 case DMA_TO_DEVICE: 488 return BIT_6; 489 case DMA_BIDIRECTIONAL: 490 return BIT_5 | BIT_6; 491 /* 492 * We could BUG() on default here if one of the four cases aren't 493 * met, but then again if we receive something like that from the 494 * SCSI layer we have more serious problems. This shuts up GCC. 495 */ 496 case DMA_NONE: 497 default: 498 return 0; 499 } 500 } 501 502 #if DEBUG_QLA1280 503 static void __qla1280_print_scsi_cmd(struct scsi_cmnd * cmd); 504 static void __qla1280_dump_buffer(char *, int); 505 #endif 506 507 508 /* 509 * insmod needs to find the variable and make it point to something 510 */ 511 #ifdef MODULE 512 static char *qla1280; 513 514 /* insmod qla1280 options=verbose" */ 515 module_param(qla1280, charp, 0); 516 #else 517 __setup("qla1280=", qla1280_setup); 518 #endif 519 520 521 /* 522 * We use the scsi_pointer structure that's included with each scsi_command 523 * to overlay our struct srb over it. qla1280_init() checks that a srb is not 524 * bigger than a scsi_pointer. 525 */ 526 527 #define CMD_SP(Cmnd) &Cmnd->SCp 528 #define CMD_CDBLEN(Cmnd) Cmnd->cmd_len 529 #define CMD_CDBP(Cmnd) Cmnd->cmnd 530 #define CMD_SNSP(Cmnd) Cmnd->sense_buffer 531 #define CMD_SNSLEN(Cmnd) sizeof(Cmnd->sense_buffer) 532 #define CMD_RESULT(Cmnd) Cmnd->result 533 #define CMD_HANDLE(Cmnd) Cmnd->host_scribble 534 #define CMD_REQUEST(Cmnd) Cmnd->request->cmd 535 536 #define CMD_HOST(Cmnd) Cmnd->device->host 537 #define SCSI_BUS_32(Cmnd) Cmnd->device->channel 538 #define SCSI_TCN_32(Cmnd) Cmnd->device->id 539 #define SCSI_LUN_32(Cmnd) Cmnd->device->lun 540 541 542 /*****************************************/ 543 /* ISP Boards supported by this driver */ 544 /*****************************************/ 545 546 struct qla_boards { 547 unsigned char name[9]; /* Board ID String */ 548 int numPorts; /* Number of SCSI ports */ 549 unsigned short *fwcode; /* pointer to FW array */ 550 unsigned short *fwlen; /* number of words in array */ 551 unsigned short *fwstart; /* start address for F/W */ 552 unsigned char *fwver; /* Ptr to F/W version array */ 553 }; 554 555 /* NOTE: the last argument in each entry is used to index ql1280_board_tbl */ 556 static struct pci_device_id qla1280_pci_tbl[] = { 557 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP12160, 558 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 559 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020, 560 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 1}, 561 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1080, 562 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 2}, 563 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1240, 564 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 3}, 565 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1280, 566 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 4}, 567 {PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP10160, 568 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 5}, 569 {0,} 570 }; 571 MODULE_DEVICE_TABLE(pci, qla1280_pci_tbl); 572 573 static struct qla_boards ql1280_board_tbl[] = { 574 /* Name , Number of ports, FW details */ 575 {"QLA12160", 2, &fw12160i_code01[0], &fw12160i_length01, 576 &fw12160i_addr01, &fw12160i_version_str[0]}, 577 {"QLA1040", 1, &risc_code01[0], &risc_code_length01, 578 &risc_code_addr01, &firmware_version[0]}, 579 {"QLA1080", 1, &fw1280ei_code01[0], &fw1280ei_length01, 580 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 581 {"QLA1240", 2, &fw1280ei_code01[0], &fw1280ei_length01, 582 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 583 {"QLA1280", 2, &fw1280ei_code01[0], &fw1280ei_length01, 584 &fw1280ei_addr01, &fw1280ei_version_str[0]}, 585 {"QLA10160", 1, &fw12160i_code01[0], &fw12160i_length01, 586 &fw12160i_addr01, &fw12160i_version_str[0]}, 587 {" ", 0} 588 }; 589 590 static int qla1280_verbose = 1; 591 592 #if DEBUG_QLA1280 593 static int ql_debug_level = 1; 594 #define dprintk(level, format, a...) \ 595 do { if (ql_debug_level >= level) printk(KERN_ERR format, ##a); } while(0) 596 #define qla1280_dump_buffer(level, buf, size) \ 597 if (ql_debug_level >= level) __qla1280_dump_buffer(buf, size) 598 #define qla1280_print_scsi_cmd(level, cmd) \ 599 if (ql_debug_level >= level) __qla1280_print_scsi_cmd(cmd) 600 #else 601 #define ql_debug_level 0 602 #define dprintk(level, format, a...) do{}while(0) 603 #define qla1280_dump_buffer(a, b, c) do{}while(0) 604 #define qla1280_print_scsi_cmd(a, b) do{}while(0) 605 #endif 606 607 #define ENTER(x) dprintk(3, "qla1280 : Entering %s()\n", x); 608 #define LEAVE(x) dprintk(3, "qla1280 : Leaving %s()\n", x); 609 #define ENTER_INTR(x) dprintk(4, "qla1280 : Entering %s()\n", x); 610 #define LEAVE_INTR(x) dprintk(4, "qla1280 : Leaving %s()\n", x); 611 612 613 static int qla1280_read_nvram(struct scsi_qla_host *ha) 614 { 615 uint16_t *wptr; 616 uint8_t chksum; 617 int cnt, i; 618 struct nvram *nv; 619 620 ENTER("qla1280_read_nvram"); 621 622 if (driver_setup.no_nvram) 623 return 1; 624 625 printk(KERN_INFO "scsi(%ld): Reading NVRAM\n", ha->host_no); 626 627 wptr = (uint16_t *)&ha->nvram; 628 nv = &ha->nvram; 629 chksum = 0; 630 for (cnt = 0; cnt < 3; cnt++) { 631 *wptr = qla1280_get_nvram_word(ha, cnt); 632 chksum += *wptr & 0xff; 633 chksum += (*wptr >> 8) & 0xff; 634 wptr++; 635 } 636 637 if (nv->id0 != 'I' || nv->id1 != 'S' || 638 nv->id2 != 'P' || nv->id3 != ' ' || nv->version < 1) { 639 dprintk(2, "Invalid nvram ID or version!\n"); 640 chksum = 1; 641 } else { 642 for (; cnt < sizeof(struct nvram); cnt++) { 643 *wptr = qla1280_get_nvram_word(ha, cnt); 644 chksum += *wptr & 0xff; 645 chksum += (*wptr >> 8) & 0xff; 646 wptr++; 647 } 648 } 649 650 dprintk(3, "qla1280_read_nvram: NVRAM Magic ID= %c %c %c %02x" 651 " version %i\n", nv->id0, nv->id1, nv->id2, nv->id3, 652 nv->version); 653 654 655 if (chksum) { 656 if (!driver_setup.no_nvram) 657 printk(KERN_WARNING "scsi(%ld): Unable to identify or " 658 "validate NVRAM checksum, using default " 659 "settings\n", ha->host_no); 660 ha->nvram_valid = 0; 661 } else 662 ha->nvram_valid = 1; 663 664 /* The firmware interface is, um, interesting, in that the 665 * actual firmware image on the chip is little endian, thus, 666 * the process of taking that image to the CPU would end up 667 * little endian. However, the firmare interface requires it 668 * to be read a word (two bytes) at a time. 669 * 670 * The net result of this would be that the word (and 671 * doubleword) quantites in the firmware would be correct, but 672 * the bytes would be pairwise reversed. Since most of the 673 * firmware quantites are, in fact, bytes, we do an extra 674 * le16_to_cpu() in the firmware read routine. 675 * 676 * The upshot of all this is that the bytes in the firmware 677 * are in the correct places, but the 16 and 32 bit quantites 678 * are still in little endian format. We fix that up below by 679 * doing extra reverses on them */ 680 nv->isp_parameter = cpu_to_le16(nv->isp_parameter); 681 nv->firmware_feature.w = cpu_to_le16(nv->firmware_feature.w); 682 for(i = 0; i < MAX_BUSES; i++) { 683 nv->bus[i].selection_timeout = cpu_to_le16(nv->bus[i].selection_timeout); 684 nv->bus[i].max_queue_depth = cpu_to_le16(nv->bus[i].max_queue_depth); 685 } 686 dprintk(1, "qla1280_read_nvram: Completed Reading NVRAM\n"); 687 LEAVE("qla1280_read_nvram"); 688 689 return chksum; 690 } 691 692 /************************************************************************** 693 * qla1280_info 694 * Return a string describing the driver. 695 **************************************************************************/ 696 static const char * 697 qla1280_info(struct Scsi_Host *host) 698 { 699 static char qla1280_scsi_name_buffer[125]; 700 char *bp; 701 struct scsi_qla_host *ha; 702 struct qla_boards *bdp; 703 704 bp = &qla1280_scsi_name_buffer[0]; 705 ha = (struct scsi_qla_host *)host->hostdata; 706 bdp = &ql1280_board_tbl[ha->devnum]; 707 memset(bp, 0, sizeof(qla1280_scsi_name_buffer)); 708 709 sprintf (bp, 710 "QLogic %s PCI to SCSI Host Adapter\n" 711 " Firmware version: %2d.%02d.%02d, Driver version %s", 712 &bdp->name[0], bdp->fwver[0], bdp->fwver[1], bdp->fwver[2], 713 QLA1280_VERSION); 714 return bp; 715 } 716 717 /************************************************************************** 718 * qla1200_queuecommand 719 * Queue a command to the controller. 720 * 721 * Note: 722 * The mid-level driver tries to ensures that queuecommand never gets invoked 723 * concurrently with itself or the interrupt handler (although the 724 * interrupt handler may call this routine as part of request-completion 725 * handling). Unfortunely, it sometimes calls the scheduler in interrupt 726 * context which is a big NO! NO!. 727 **************************************************************************/ 728 static int 729 qla1280_queuecommand(struct scsi_cmnd *cmd, void (*fn)(struct scsi_cmnd *)) 730 { 731 struct Scsi_Host *host = cmd->device->host; 732 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; 733 struct srb *sp = (struct srb *)&cmd->SCp; 734 int status; 735 736 cmd->scsi_done = fn; 737 sp->cmd = cmd; 738 sp->flags = 0; 739 740 qla1280_print_scsi_cmd(5, cmd); 741 742 #ifdef QLA_64BIT_PTR 743 /* 744 * Using 64 bit commands if the PCI bridge doesn't support it is a 745 * bit wasteful, however this should really only happen if one's 746 * PCI controller is completely broken, like the BCM1250. For 747 * sane hardware this is not an issue. 748 */ 749 status = qla1280_64bit_start_scsi(ha, sp); 750 #else 751 status = qla1280_32bit_start_scsi(ha, sp); 752 #endif 753 return status; 754 } 755 756 enum action { 757 ABORT_COMMAND, 758 ABORT_DEVICE, 759 DEVICE_RESET, 760 BUS_RESET, 761 ADAPTER_RESET, 762 FAIL 763 }; 764 765 /* timer action for error action processor */ 766 static void qla1280_error_wait_timeout(unsigned long __data) 767 { 768 struct scsi_cmnd *cmd = (struct scsi_cmnd *)__data; 769 struct srb *sp = (struct srb *)CMD_SP(cmd); 770 771 complete(sp->wait); 772 } 773 774 static void qla1280_mailbox_timeout(unsigned long __data) 775 { 776 struct scsi_qla_host *ha = (struct scsi_qla_host *)__data; 777 struct device_reg __iomem *reg; 778 reg = ha->iobase; 779 780 ha->mailbox_out[0] = RD_REG_WORD(®->mailbox0); 781 printk(KERN_ERR "scsi(%ld): mailbox timed out, mailbox0 %04x, " 782 "ictrl %04x, istatus %04x\n", ha->host_no, ha->mailbox_out[0], 783 RD_REG_WORD(®->ictrl), RD_REG_WORD(®->istatus)); 784 complete(ha->mailbox_wait); 785 } 786 787 /************************************************************************** 788 * qla1200_error_action 789 * The function will attempt to perform a specified error action and 790 * wait for the results (or time out). 791 * 792 * Input: 793 * cmd = Linux SCSI command packet of the command that cause the 794 * bus reset. 795 * action = error action to take (see action_t) 796 * 797 * Returns: 798 * SUCCESS or FAILED 799 * 800 * Note: 801 * Resetting the bus always succeeds - is has to, otherwise the 802 * kernel will panic! Try a surgical technique - sending a BUS 803 * DEVICE RESET message - on the offending target before pulling 804 * the SCSI bus reset line. 805 **************************************************************************/ 806 static int 807 qla1280_error_action(struct scsi_cmnd *cmd, enum action action) 808 { 809 struct scsi_qla_host *ha; 810 int bus, target, lun; 811 struct srb *sp; 812 uint16_t data; 813 unsigned char *handle; 814 int result, i; 815 DECLARE_COMPLETION_ONSTACK(wait); 816 struct timer_list timer; 817 818 ha = (struct scsi_qla_host *)(CMD_HOST(cmd)->hostdata); 819 820 dprintk(4, "error_action %i, istatus 0x%04x\n", action, 821 RD_REG_WORD(&ha->iobase->istatus)); 822 823 dprintk(4, "host_cmd 0x%04x, ictrl 0x%04x, jiffies %li\n", 824 RD_REG_WORD(&ha->iobase->host_cmd), 825 RD_REG_WORD(&ha->iobase->ictrl), jiffies); 826 827 ENTER("qla1280_error_action"); 828 if (qla1280_verbose) 829 printk(KERN_INFO "scsi(%li): Resetting Cmnd=0x%p, " 830 "Handle=0x%p, action=0x%x\n", 831 ha->host_no, cmd, CMD_HANDLE(cmd), action); 832 833 if (cmd == NULL) { 834 printk(KERN_WARNING "(scsi?:?:?:?) Reset called with NULL " 835 "si_Cmnd pointer, failing.\n"); 836 LEAVE("qla1280_error_action"); 837 return FAILED; 838 } 839 840 ha = (struct scsi_qla_host *)cmd->device->host->hostdata; 841 sp = (struct srb *)CMD_SP(cmd); 842 handle = CMD_HANDLE(cmd); 843 844 /* Check for pending interrupts. */ 845 data = qla1280_debounce_register(&ha->iobase->istatus); 846 /* 847 * The io_request_lock is held when the reset handler is called, hence 848 * the interrupt handler cannot be running in parallel as it also 849 * grabs the lock. /Jes 850 */ 851 if (data & RISC_INT) 852 qla1280_isr(ha, &ha->done_q); 853 854 /* 855 * Determine the suggested action that the mid-level driver wants 856 * us to perform. 857 */ 858 if (handle == (unsigned char *)INVALID_HANDLE || handle == NULL) { 859 if(action == ABORT_COMMAND) { 860 /* we never got this command */ 861 printk(KERN_INFO "qla1280: Aborting a NULL handle\n"); 862 return SUCCESS; /* no action - we don't have command */ 863 } 864 } else { 865 sp->wait = &wait; 866 } 867 868 bus = SCSI_BUS_32(cmd); 869 target = SCSI_TCN_32(cmd); 870 lun = SCSI_LUN_32(cmd); 871 872 /* Overloading result. Here it means the success or fail of the 873 * *issue* of the action. When we return from the routine, it must 874 * mean the actual success or fail of the action */ 875 result = FAILED; 876 switch (action) { 877 case FAIL: 878 break; 879 880 case ABORT_COMMAND: 881 if ((sp->flags & SRB_ABORT_PENDING)) { 882 printk(KERN_WARNING 883 "scsi(): Command has a pending abort " 884 "message - ABORT_PENDING.\n"); 885 /* This should technically be impossible since we 886 * now wait for abort completion */ 887 break; 888 } 889 890 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { 891 if (sp == ha->outstanding_cmds[i]) { 892 dprintk(1, "qla1280: RISC aborting command\n"); 893 if (qla1280_abort_command(ha, sp, i) == 0) 894 result = SUCCESS; 895 else { 896 /* 897 * Since we don't know what might 898 * have happend to the command, it 899 * is unsafe to remove it from the 900 * device's queue at this point. 901 * Wait and let the escalation 902 * process take care of it. 903 */ 904 printk(KERN_WARNING 905 "scsi(%li:%i:%i:%i): Unable" 906 " to abort command!\n", 907 ha->host_no, bus, target, lun); 908 } 909 } 910 } 911 break; 912 913 case ABORT_DEVICE: 914 if (qla1280_verbose) 915 printk(KERN_INFO 916 "scsi(%ld:%d:%d:%d): Queueing abort device " 917 "command.\n", ha->host_no, bus, target, lun); 918 if (qla1280_abort_device(ha, bus, target, lun) == 0) 919 result = SUCCESS; 920 break; 921 922 case DEVICE_RESET: 923 if (qla1280_verbose) 924 printk(KERN_INFO 925 "scsi(%ld:%d:%d:%d): Queueing device reset " 926 "command.\n", ha->host_no, bus, target, lun); 927 if (qla1280_device_reset(ha, bus, target) == 0) 928 result = SUCCESS; 929 break; 930 931 case BUS_RESET: 932 if (qla1280_verbose) 933 printk(KERN_INFO "qla1280(%ld:%d): Issued bus " 934 "reset.\n", ha->host_no, bus); 935 if (qla1280_bus_reset(ha, bus) == 0) 936 result = SUCCESS; 937 break; 938 939 case ADAPTER_RESET: 940 default: 941 if (qla1280_verbose) { 942 printk(KERN_INFO 943 "scsi(%ld): Issued ADAPTER RESET\n", 944 ha->host_no); 945 printk(KERN_INFO "scsi(%ld): I/O processing will " 946 "continue automatically\n", ha->host_no); 947 } 948 ha->flags.reset_active = 1; 949 /* 950 * We restarted all of the commands automatically, so the 951 * mid-level code can expect completions momentitarily. 952 */ 953 if (qla1280_abort_isp(ha) == 0) 954 result = SUCCESS; 955 956 ha->flags.reset_active = 0; 957 } 958 959 if (!list_empty(&ha->done_q)) 960 qla1280_done(ha); 961 962 /* If we didn't manage to issue the action, or we have no 963 * command to wait for, exit here */ 964 if (result == FAILED || handle == NULL || 965 handle == (unsigned char *)INVALID_HANDLE) { 966 /* 967 * Clear completion queue to avoid qla1280_done() trying 968 * to complete the command at a later stage after we 969 * have exited the current context 970 */ 971 sp->wait = NULL; 972 goto leave; 973 } 974 975 /* set up a timer just in case we're really jammed */ 976 init_timer(&timer); 977 timer.expires = jiffies + 4*HZ; 978 timer.data = (unsigned long)cmd; 979 timer.function = qla1280_error_wait_timeout; 980 add_timer(&timer); 981 982 /* wait for the action to complete (or the timer to expire) */ 983 spin_unlock_irq(ha->host->host_lock); 984 wait_for_completion(&wait); 985 del_timer_sync(&timer); 986 spin_lock_irq(ha->host->host_lock); 987 sp->wait = NULL; 988 989 /* the only action we might get a fail for is abort */ 990 if (action == ABORT_COMMAND) { 991 if(sp->flags & SRB_ABORTED) 992 result = SUCCESS; 993 else 994 result = FAILED; 995 } 996 997 leave: 998 dprintk(1, "RESET returning %d\n", result); 999 1000 LEAVE("qla1280_error_action"); 1001 return result; 1002 } 1003 1004 /************************************************************************** 1005 * qla1280_abort 1006 * Abort the specified SCSI command(s). 1007 **************************************************************************/ 1008 static int 1009 qla1280_eh_abort(struct scsi_cmnd * cmd) 1010 { 1011 int rc; 1012 1013 spin_lock_irq(cmd->device->host->host_lock); 1014 rc = qla1280_error_action(cmd, ABORT_COMMAND); 1015 spin_unlock_irq(cmd->device->host->host_lock); 1016 1017 return rc; 1018 } 1019 1020 /************************************************************************** 1021 * qla1280_device_reset 1022 * Reset the specified SCSI device 1023 **************************************************************************/ 1024 static int 1025 qla1280_eh_device_reset(struct scsi_cmnd *cmd) 1026 { 1027 int rc; 1028 1029 spin_lock_irq(cmd->device->host->host_lock); 1030 rc = qla1280_error_action(cmd, DEVICE_RESET); 1031 spin_unlock_irq(cmd->device->host->host_lock); 1032 1033 return rc; 1034 } 1035 1036 /************************************************************************** 1037 * qla1280_bus_reset 1038 * Reset the specified bus. 1039 **************************************************************************/ 1040 static int 1041 qla1280_eh_bus_reset(struct scsi_cmnd *cmd) 1042 { 1043 int rc; 1044 1045 spin_lock_irq(cmd->device->host->host_lock); 1046 rc = qla1280_error_action(cmd, BUS_RESET); 1047 spin_unlock_irq(cmd->device->host->host_lock); 1048 1049 return rc; 1050 } 1051 1052 /************************************************************************** 1053 * qla1280_adapter_reset 1054 * Reset the specified adapter (both channels) 1055 **************************************************************************/ 1056 static int 1057 qla1280_eh_adapter_reset(struct scsi_cmnd *cmd) 1058 { 1059 int rc; 1060 1061 spin_lock_irq(cmd->device->host->host_lock); 1062 rc = qla1280_error_action(cmd, ADAPTER_RESET); 1063 spin_unlock_irq(cmd->device->host->host_lock); 1064 1065 return rc; 1066 } 1067 1068 static int 1069 qla1280_biosparam(struct scsi_device *sdev, struct block_device *bdev, 1070 sector_t capacity, int geom[]) 1071 { 1072 int heads, sectors, cylinders; 1073 1074 heads = 64; 1075 sectors = 32; 1076 cylinders = (unsigned long)capacity / (heads * sectors); 1077 if (cylinders > 1024) { 1078 heads = 255; 1079 sectors = 63; 1080 cylinders = (unsigned long)capacity / (heads * sectors); 1081 /* if (cylinders > 1023) 1082 cylinders = 1023; */ 1083 } 1084 1085 geom[0] = heads; 1086 geom[1] = sectors; 1087 geom[2] = cylinders; 1088 1089 return 0; 1090 } 1091 1092 1093 /* disable risc and host interrupts */ 1094 static inline void 1095 qla1280_disable_intrs(struct scsi_qla_host *ha) 1096 { 1097 WRT_REG_WORD(&ha->iobase->ictrl, 0); 1098 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */ 1099 } 1100 1101 /* enable risc and host interrupts */ 1102 static inline void 1103 qla1280_enable_intrs(struct scsi_qla_host *ha) 1104 { 1105 WRT_REG_WORD(&ha->iobase->ictrl, (ISP_EN_INT | ISP_EN_RISC)); 1106 RD_REG_WORD(&ha->iobase->ictrl); /* PCI Posted Write flush */ 1107 } 1108 1109 /************************************************************************** 1110 * qla1280_intr_handler 1111 * Handles the H/W interrupt 1112 **************************************************************************/ 1113 static irqreturn_t 1114 qla1280_intr_handler(int irq, void *dev_id) 1115 { 1116 struct scsi_qla_host *ha; 1117 struct device_reg __iomem *reg; 1118 u16 data; 1119 int handled = 0; 1120 1121 ENTER_INTR ("qla1280_intr_handler"); 1122 ha = (struct scsi_qla_host *)dev_id; 1123 1124 spin_lock(ha->host->host_lock); 1125 1126 ha->isr_count++; 1127 reg = ha->iobase; 1128 1129 qla1280_disable_intrs(ha); 1130 1131 data = qla1280_debounce_register(®->istatus); 1132 /* Check for pending interrupts. */ 1133 if (data & RISC_INT) { 1134 qla1280_isr(ha, &ha->done_q); 1135 handled = 1; 1136 } 1137 if (!list_empty(&ha->done_q)) 1138 qla1280_done(ha); 1139 1140 spin_unlock(ha->host->host_lock); 1141 1142 qla1280_enable_intrs(ha); 1143 1144 LEAVE_INTR("qla1280_intr_handler"); 1145 return IRQ_RETVAL(handled); 1146 } 1147 1148 1149 static int 1150 qla1280_set_target_parameters(struct scsi_qla_host *ha, int bus, int target) 1151 { 1152 uint8_t mr; 1153 uint16_t mb[MAILBOX_REGISTER_COUNT]; 1154 struct nvram *nv; 1155 int status, lun; 1156 1157 nv = &ha->nvram; 1158 1159 mr = BIT_3 | BIT_2 | BIT_1 | BIT_0; 1160 1161 /* Set Target Parameters. */ 1162 mb[0] = MBC_SET_TARGET_PARAMETERS; 1163 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 1164 mb[2] = nv->bus[bus].target[target].parameter.renegotiate_on_error << 8; 1165 mb[2] |= nv->bus[bus].target[target].parameter.stop_queue_on_check << 9; 1166 mb[2] |= nv->bus[bus].target[target].parameter.auto_request_sense << 10; 1167 mb[2] |= nv->bus[bus].target[target].parameter.tag_queuing << 11; 1168 mb[2] |= nv->bus[bus].target[target].parameter.enable_sync << 12; 1169 mb[2] |= nv->bus[bus].target[target].parameter.enable_wide << 13; 1170 mb[2] |= nv->bus[bus].target[target].parameter.parity_checking << 14; 1171 mb[2] |= nv->bus[bus].target[target].parameter.disconnect_allowed << 15; 1172 1173 if (IS_ISP1x160(ha)) { 1174 mb[2] |= nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr << 5; 1175 mb[3] = (nv->bus[bus].target[target].flags.flags1x160.sync_offset << 8); 1176 mb[6] = (nv->bus[bus].target[target].ppr_1x160.flags.ppr_options << 8) | 1177 nv->bus[bus].target[target].ppr_1x160.flags.ppr_bus_width; 1178 mr |= BIT_6; 1179 } else { 1180 mb[3] = (nv->bus[bus].target[target].flags.flags1x80.sync_offset << 8); 1181 } 1182 mb[3] |= nv->bus[bus].target[target].sync_period; 1183 1184 status = qla1280_mailbox_command(ha, mr, mb); 1185 1186 /* Set Device Queue Parameters. */ 1187 for (lun = 0; lun < MAX_LUNS; lun++) { 1188 mb[0] = MBC_SET_DEVICE_QUEUE; 1189 mb[1] = (uint16_t)((bus ? target | BIT_7 : target) << 8); 1190 mb[1] |= lun; 1191 mb[2] = nv->bus[bus].max_queue_depth; 1192 mb[3] = nv->bus[bus].target[target].execution_throttle; 1193 status |= qla1280_mailbox_command(ha, 0x0f, mb); 1194 } 1195 1196 if (status) 1197 printk(KERN_WARNING "scsi(%ld:%i:%i): " 1198 "qla1280_set_target_parameters() failed\n", 1199 ha->host_no, bus, target); 1200 return status; 1201 } 1202 1203 1204 /************************************************************************** 1205 * qla1280_slave_configure 1206 * 1207 * Description: 1208 * Determines the queue depth for a given device. There are two ways 1209 * a queue depth can be obtained for a tagged queueing device. One 1210 * way is the default queue depth which is determined by whether 1211 * If it is defined, then it is used 1212 * as the default queue depth. Otherwise, we use either 4 or 8 as the 1213 * default queue depth (dependent on the number of hardware SCBs). 1214 **************************************************************************/ 1215 static int 1216 qla1280_slave_configure(struct scsi_device *device) 1217 { 1218 struct scsi_qla_host *ha; 1219 int default_depth = 3; 1220 int bus = device->channel; 1221 int target = device->id; 1222 int status = 0; 1223 struct nvram *nv; 1224 unsigned long flags; 1225 1226 ha = (struct scsi_qla_host *)device->host->hostdata; 1227 nv = &ha->nvram; 1228 1229 if (qla1280_check_for_dead_scsi_bus(ha, bus)) 1230 return 1; 1231 1232 if (device->tagged_supported && 1233 (ha->bus_settings[bus].qtag_enables & (BIT_0 << target))) { 1234 scsi_adjust_queue_depth(device, MSG_ORDERED_TAG, 1235 ha->bus_settings[bus].hiwat); 1236 } else { 1237 scsi_adjust_queue_depth(device, 0, default_depth); 1238 } 1239 1240 nv->bus[bus].target[target].parameter.enable_sync = device->sdtr; 1241 nv->bus[bus].target[target].parameter.enable_wide = device->wdtr; 1242 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = device->ppr; 1243 1244 if (driver_setup.no_sync || 1245 (driver_setup.sync_mask && 1246 (~driver_setup.sync_mask & (1 << target)))) 1247 nv->bus[bus].target[target].parameter.enable_sync = 0; 1248 if (driver_setup.no_wide || 1249 (driver_setup.wide_mask && 1250 (~driver_setup.wide_mask & (1 << target)))) 1251 nv->bus[bus].target[target].parameter.enable_wide = 0; 1252 if (IS_ISP1x160(ha)) { 1253 if (driver_setup.no_ppr || 1254 (driver_setup.ppr_mask && 1255 (~driver_setup.ppr_mask & (1 << target)))) 1256 nv->bus[bus].target[target].ppr_1x160.flags.enable_ppr = 0; 1257 } 1258 1259 spin_lock_irqsave(ha->host->host_lock, flags); 1260 if (nv->bus[bus].target[target].parameter.enable_sync) 1261 status = qla1280_set_target_parameters(ha, bus, target); 1262 qla1280_get_target_parameters(ha, device); 1263 spin_unlock_irqrestore(ha->host->host_lock, flags); 1264 return status; 1265 } 1266 1267 1268 /* 1269 * qla1280_done 1270 * Process completed commands. 1271 * 1272 * Input: 1273 * ha = adapter block pointer. 1274 */ 1275 static void 1276 qla1280_done(struct scsi_qla_host *ha) 1277 { 1278 struct srb *sp; 1279 struct list_head *done_q; 1280 int bus, target, lun; 1281 struct scsi_cmnd *cmd; 1282 1283 ENTER("qla1280_done"); 1284 1285 done_q = &ha->done_q; 1286 1287 while (!list_empty(done_q)) { 1288 sp = list_entry(done_q->next, struct srb, list); 1289 1290 list_del(&sp->list); 1291 1292 cmd = sp->cmd; 1293 bus = SCSI_BUS_32(cmd); 1294 target = SCSI_TCN_32(cmd); 1295 lun = SCSI_LUN_32(cmd); 1296 1297 switch ((CMD_RESULT(cmd) >> 16)) { 1298 case DID_RESET: 1299 /* Issue marker command. */ 1300 qla1280_marker(ha, bus, target, 0, MK_SYNC_ID); 1301 break; 1302 case DID_ABORT: 1303 sp->flags &= ~SRB_ABORT_PENDING; 1304 sp->flags |= SRB_ABORTED; 1305 if (sp->flags & SRB_TIMEOUT) 1306 CMD_RESULT(sp->cmd) = DID_TIME_OUT << 16; 1307 break; 1308 default: 1309 break; 1310 } 1311 1312 /* Release memory used for this I/O */ 1313 if (cmd->use_sg) { 1314 pci_unmap_sg(ha->pdev, cmd->request_buffer, 1315 cmd->use_sg, cmd->sc_data_direction); 1316 } else if (cmd->request_bufflen) { 1317 pci_unmap_single(ha->pdev, sp->saved_dma_handle, 1318 cmd->request_bufflen, 1319 cmd->sc_data_direction); 1320 } 1321 1322 /* Call the mid-level driver interrupt handler */ 1323 CMD_HANDLE(sp->cmd) = (unsigned char *)INVALID_HANDLE; 1324 ha->actthreads--; 1325 1326 (*(cmd)->scsi_done)(cmd); 1327 1328 if(sp->wait != NULL) 1329 complete(sp->wait); 1330 } 1331 LEAVE("qla1280_done"); 1332 } 1333 1334 /* 1335 * Translates a ISP error to a Linux SCSI error 1336 */ 1337 static int 1338 qla1280_return_status(struct response * sts, struct scsi_cmnd *cp) 1339 { 1340 int host_status = DID_ERROR; 1341 uint16_t comp_status = le16_to_cpu(sts->comp_status); 1342 uint16_t state_flags = le16_to_cpu(sts->state_flags); 1343 uint32_t residual_length = le32_to_cpu(sts->residual_length); 1344 uint16_t scsi_status = le16_to_cpu(sts->scsi_status); 1345 #if DEBUG_QLA1280_INTR 1346 static char *reason[] = { 1347 "DID_OK", 1348 "DID_NO_CONNECT", 1349 "DID_BUS_BUSY", 1350 "DID_TIME_OUT", 1351 "DID_BAD_TARGET", 1352 "DID_ABORT", 1353 "DID_PARITY", 1354 "DID_ERROR", 1355 "DID_RESET", 1356 "DID_BAD_INTR" 1357 }; 1358 #endif /* DEBUG_QLA1280_INTR */ 1359 1360 ENTER("qla1280_return_status"); 1361 1362 #if DEBUG_QLA1280_INTR 1363 /* 1364 dprintk(1, "qla1280_return_status: compl status = 0x%04x\n", 1365 comp_status); 1366 */ 1367 #endif 1368 1369 switch (comp_status) { 1370 case CS_COMPLETE: 1371 host_status = DID_OK; 1372 break; 1373 1374 case CS_INCOMPLETE: 1375 if (!(state_flags & SF_GOT_BUS)) 1376 host_status = DID_NO_CONNECT; 1377 else if (!(state_flags & SF_GOT_TARGET)) 1378 host_status = DID_BAD_TARGET; 1379 else if (!(state_flags & SF_SENT_CDB)) 1380 host_status = DID_ERROR; 1381 else if (!(state_flags & SF_TRANSFERRED_DATA)) 1382 host_status = DID_ERROR; 1383 else if (!(state_flags & SF_GOT_STATUS)) 1384 host_status = DID_ERROR; 1385 else if (!(state_flags & SF_GOT_SENSE)) 1386 host_status = DID_ERROR; 1387 break; 1388 1389 case CS_RESET: 1390 host_status = DID_RESET; 1391 break; 1392 1393 case CS_ABORTED: 1394 host_status = DID_ABORT; 1395 break; 1396 1397 case CS_TIMEOUT: 1398 host_status = DID_TIME_OUT; 1399 break; 1400 1401 case CS_DATA_OVERRUN: 1402 dprintk(2, "Data overrun 0x%x\n", residual_length); 1403 dprintk(2, "qla1280_return_status: response packet data\n"); 1404 qla1280_dump_buffer(2, (char *)sts, RESPONSE_ENTRY_SIZE); 1405 host_status = DID_ERROR; 1406 break; 1407 1408 case CS_DATA_UNDERRUN: 1409 if ((cp->request_bufflen - residual_length) < 1410 cp->underflow) { 1411 printk(KERN_WARNING 1412 "scsi: Underflow detected - retrying " 1413 "command.\n"); 1414 host_status = DID_ERROR; 1415 } else { 1416 cp->resid = residual_length; 1417 host_status = DID_OK; 1418 } 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_ONSTACK(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, *s; 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(cmd->timeout_per_command/HZ); 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 int remseg = seg_cnt; 2893 /* Setup packet address segment pointer. */ 2894 dword_ptr = (u32 *)&pkt->dseg_0_address; 2895 2896 if (cmd->use_sg) { /* If scatter gather */ 2897 /* Load command entry data segments. */ 2898 for_each_sg(sg, s, seg_cnt, cnt) { 2899 if (cnt == 2) 2900 break; 2901 dma_handle = sg_dma_address(s); 2902 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 2903 if (ha->flags.use_pci_vchannel) 2904 sn_pci_set_vchan(ha->pdev, 2905 (unsigned long *)&dma_handle, 2906 SCSI_BUS_32(cmd)); 2907 #endif 2908 *dword_ptr++ = 2909 cpu_to_le32(pci_dma_lo32(dma_handle)); 2910 *dword_ptr++ = 2911 cpu_to_le32(pci_dma_hi32(dma_handle)); 2912 *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); 2913 dprintk(3, "S/G Segment phys_addr=%x %x, len=0x%x\n", 2914 cpu_to_le32(pci_dma_hi32(dma_handle)), 2915 cpu_to_le32(pci_dma_lo32(dma_handle)), 2916 cpu_to_le32(sg_dma_len(sg_next(s)))); 2917 remseg--; 2918 } 2919 dprintk(5, "qla1280_64bit_start_scsi: Scatter/gather " 2920 "command packet data - b %i, t %i, l %i \n", 2921 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), 2922 SCSI_LUN_32(cmd)); 2923 qla1280_dump_buffer(5, (char *)pkt, 2924 REQUEST_ENTRY_SIZE); 2925 2926 /* 2927 * Build continuation packets. 2928 */ 2929 dprintk(3, "S/G Building Continuation...seg_cnt=0x%x " 2930 "remains\n", seg_cnt); 2931 2932 while (remseg > 0) { 2933 /* Update sg start */ 2934 sg = s; 2935 /* Adjust ring index. */ 2936 ha->req_ring_index++; 2937 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 2938 ha->req_ring_index = 0; 2939 ha->request_ring_ptr = 2940 ha->request_ring; 2941 } else 2942 ha->request_ring_ptr++; 2943 2944 pkt = (cmd_a64_entry_t *)ha->request_ring_ptr; 2945 2946 /* Zero out packet. */ 2947 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2948 2949 /* Load packet defaults. */ 2950 ((struct cont_a64_entry *) pkt)->entry_type = 2951 CONTINUE_A64_TYPE; 2952 ((struct cont_a64_entry *) pkt)->entry_count = 1; 2953 ((struct cont_a64_entry *) pkt)->sys_define = 2954 (uint8_t)ha->req_ring_index; 2955 /* Setup packet address segment pointer. */ 2956 dword_ptr = 2957 (u32 *)&((struct cont_a64_entry *) pkt)->dseg_0_address; 2958 2959 /* Load continuation entry data segments. */ 2960 for_each_sg(sg, s, remseg, cnt) { 2961 if (cnt == 5) 2962 break; 2963 dma_handle = sg_dma_address(s); 2964 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 2965 if (ha->flags.use_pci_vchannel) 2966 sn_pci_set_vchan(ha->pdev, 2967 (unsigned long *)&dma_handle, 2968 SCSI_BUS_32(cmd)); 2969 #endif 2970 *dword_ptr++ = 2971 cpu_to_le32(pci_dma_lo32(dma_handle)); 2972 *dword_ptr++ = 2973 cpu_to_le32(pci_dma_hi32(dma_handle)); 2974 *dword_ptr++ = 2975 cpu_to_le32(sg_dma_len(s)); 2976 dprintk(3, "S/G Segment Cont. phys_addr=%x %x, len=0x%x\n", 2977 cpu_to_le32(pci_dma_hi32(dma_handle)), 2978 cpu_to_le32(pci_dma_lo32(dma_handle)), 2979 cpu_to_le32(sg_dma_len(s))); 2980 } 2981 remseg -= cnt; 2982 dprintk(5, "qla1280_64bit_start_scsi: " 2983 "continuation packet data - b %i, t " 2984 "%i, l %i \n", SCSI_BUS_32(cmd), 2985 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 2986 qla1280_dump_buffer(5, (char *)pkt, 2987 REQUEST_ENTRY_SIZE); 2988 } 2989 } else { /* No scatter gather data transfer */ 2990 dma_handle = pci_map_single(ha->pdev, 2991 cmd->request_buffer, 2992 cmd->request_bufflen, 2993 cmd->sc_data_direction); 2994 2995 sp->saved_dma_handle = dma_handle; 2996 #if defined(CONFIG_IA64_GENERIC) || defined(CONFIG_IA64_SGI_SN2) 2997 if (ha->flags.use_pci_vchannel) 2998 sn_pci_set_vchan(ha->pdev, 2999 (unsigned long *)&dma_handle, 3000 SCSI_BUS_32(cmd)); 3001 #endif 3002 *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); 3003 *dword_ptr++ = cpu_to_le32(pci_dma_hi32(dma_handle)); 3004 *dword_ptr = cpu_to_le32(cmd->request_bufflen); 3005 3006 dprintk(5, "qla1280_64bit_start_scsi: No scatter/" 3007 "gather command packet data - b %i, t %i, " 3008 "l %i \n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), 3009 SCSI_LUN_32(cmd)); 3010 qla1280_dump_buffer(5, (char *)pkt, 3011 REQUEST_ENTRY_SIZE); 3012 } 3013 } else { /* No data transfer */ 3014 dprintk(5, "qla1280_64bit_start_scsi: No data, command " 3015 "packet data - b %i, t %i, l %i \n", 3016 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 3017 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); 3018 } 3019 /* Adjust ring index. */ 3020 ha->req_ring_index++; 3021 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3022 ha->req_ring_index = 0; 3023 ha->request_ring_ptr = ha->request_ring; 3024 } else 3025 ha->request_ring_ptr++; 3026 3027 /* Set chip new ring index. */ 3028 dprintk(2, 3029 "qla1280_64bit_start_scsi: Wakeup RISC for pending command\n"); 3030 sp->flags |= SRB_SENT; 3031 ha->actthreads++; 3032 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3033 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ 3034 mmiowb(); 3035 3036 out: 3037 if (status) 3038 dprintk(2, "qla1280_64bit_start_scsi: **** FAILED ****\n"); 3039 else 3040 dprintk(3, "qla1280_64bit_start_scsi: exiting normally\n"); 3041 3042 return status; 3043 } 3044 #else /* !QLA_64BIT_PTR */ 3045 3046 /* 3047 * qla1280_32bit_start_scsi 3048 * The start SCSI is responsible for building request packets on 3049 * request ring and modifying ISP input pointer. 3050 * 3051 * The Qlogic firmware interface allows every queue slot to have a SCSI 3052 * command and up to 4 scatter/gather (SG) entries. If we need more 3053 * than 4 SG entries, then continuation entries are used that can 3054 * hold another 7 entries each. The start routine determines if there 3055 * is eought empty slots then build the combination of requests to 3056 * fulfill the OS request. 3057 * 3058 * Input: 3059 * ha = adapter block pointer. 3060 * sp = SCSI Request Block structure pointer. 3061 * 3062 * Returns: 3063 * 0 = success, was able to issue command. 3064 */ 3065 static int 3066 qla1280_32bit_start_scsi(struct scsi_qla_host *ha, struct srb * sp) 3067 { 3068 struct device_reg __iomem *reg = ha->iobase; 3069 struct scsi_cmnd *cmd = sp->cmd; 3070 struct cmd_entry *pkt; 3071 struct scatterlist *sg = NULL, *s; 3072 __le32 *dword_ptr; 3073 int status = 0; 3074 int cnt; 3075 int req_cnt; 3076 uint16_t seg_cnt; 3077 dma_addr_t dma_handle; 3078 u8 dir; 3079 3080 ENTER("qla1280_32bit_start_scsi"); 3081 3082 dprintk(1, "32bit_start: cmd=%p sp=%p CDB=%x\n", cmd, sp, 3083 cmd->cmnd[0]); 3084 3085 /* Calculate number of entries and segments required. */ 3086 req_cnt = 1; 3087 if (cmd->use_sg) { 3088 /* 3089 * We must build an SG list in adapter format, as the kernel's 3090 * SG list cannot be used directly because of data field size 3091 * (__alpha__) differences and the kernel SG list uses virtual 3092 * addresses where we need physical addresses. 3093 */ 3094 sg = (struct scatterlist *) cmd->request_buffer; 3095 seg_cnt = pci_map_sg(ha->pdev, sg, cmd->use_sg, 3096 cmd->sc_data_direction); 3097 3098 /* 3099 * if greater than four sg entries then we need to allocate 3100 * continuation entries 3101 */ 3102 if (seg_cnt > 4) { 3103 req_cnt += (seg_cnt - 4) / 7; 3104 if ((seg_cnt - 4) % 7) 3105 req_cnt++; 3106 } 3107 dprintk(3, "S/G Transfer cmd=%p seg_cnt=0x%x, req_cnt=%x\n", 3108 cmd, seg_cnt, req_cnt); 3109 } else if (cmd->request_bufflen) { /* If data transfer. */ 3110 dprintk(3, "No S/G transfer t=%x cmd=%p len=%x CDB=%x\n", 3111 SCSI_TCN_32(cmd), cmd, cmd->request_bufflen, 3112 cmd->cmnd[0]); 3113 seg_cnt = 1; 3114 } else { 3115 /* dprintk(1, "No data transfer \n"); */ 3116 seg_cnt = 0; 3117 } 3118 3119 if ((req_cnt + 2) >= ha->req_q_cnt) { 3120 /* Calculate number of free request entries. */ 3121 cnt = RD_REG_WORD(®->mailbox4); 3122 if (ha->req_ring_index < cnt) 3123 ha->req_q_cnt = cnt - ha->req_ring_index; 3124 else 3125 ha->req_q_cnt = 3126 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); 3127 } 3128 3129 dprintk(3, "Number of free entries=(%d) seg_cnt=0x%x\n", 3130 ha->req_q_cnt, seg_cnt); 3131 /* If room for request in request ring. */ 3132 if ((req_cnt + 2) >= ha->req_q_cnt) { 3133 status = 1; 3134 dprintk(2, "qla1280_32bit_start_scsi: in-ptr=0x%x, " 3135 "req_q_cnt=0x%x, req_cnt=0x%x", ha->req_ring_index, 3136 ha->req_q_cnt, req_cnt); 3137 goto out; 3138 } 3139 3140 /* Check for empty slot in outstanding command list. */ 3141 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS && 3142 (ha->outstanding_cmds[cnt] != 0); cnt++) ; 3143 3144 if (cnt >= MAX_OUTSTANDING_COMMANDS) { 3145 status = 1; 3146 dprintk(2, "qla1280_32bit_start_scsi: NO ROOM IN OUTSTANDING " 3147 "ARRAY, req_q_cnt=0x%x\n", ha->req_q_cnt); 3148 goto out; 3149 } 3150 3151 CMD_HANDLE(sp->cmd) = (unsigned char *) (unsigned long)(cnt + 1); 3152 ha->outstanding_cmds[cnt] = sp; 3153 ha->req_q_cnt -= req_cnt; 3154 3155 /* 3156 * Build command packet. 3157 */ 3158 pkt = (struct cmd_entry *) ha->request_ring_ptr; 3159 3160 pkt->entry_type = COMMAND_TYPE; 3161 pkt->entry_count = (uint8_t) req_cnt; 3162 pkt->sys_define = (uint8_t) ha->req_ring_index; 3163 pkt->entry_status = 0; 3164 pkt->handle = cpu_to_le32(cnt); 3165 3166 /* Zero out remaining portion of packet. */ 3167 memset(((char *)pkt + 8), 0, (REQUEST_ENTRY_SIZE - 8)); 3168 3169 /* Set ISP command timeout. */ 3170 pkt->timeout = cpu_to_le16(cmd->timeout_per_command/HZ); 3171 3172 /* Set device target ID and LUN */ 3173 pkt->lun = SCSI_LUN_32(cmd); 3174 pkt->target = SCSI_BUS_32(cmd) ? 3175 (SCSI_TCN_32(cmd) | BIT_7) : SCSI_TCN_32(cmd); 3176 3177 /* Enable simple tag queuing if device supports it. */ 3178 if (cmd->device->simple_tags) 3179 pkt->control_flags |= cpu_to_le16(BIT_3); 3180 3181 /* Load SCSI command packet. */ 3182 pkt->cdb_len = cpu_to_le16(CMD_CDBLEN(cmd)); 3183 memcpy(pkt->scsi_cdb, &(CMD_CDBP(cmd)), CMD_CDBLEN(cmd)); 3184 3185 /*dprintk(1, "Build packet for command[0]=0x%x\n",pkt->scsi_cdb[0]); */ 3186 /* Set transfer direction. */ 3187 dir = qla1280_data_direction(cmd); 3188 pkt->control_flags |= cpu_to_le16(dir); 3189 3190 /* Set total data segment count. */ 3191 pkt->dseg_count = cpu_to_le16(seg_cnt); 3192 3193 /* 3194 * Load data segments. 3195 */ 3196 if (seg_cnt) { 3197 int remseg = seg_cnt; 3198 /* Setup packet address segment pointer. */ 3199 dword_ptr = &pkt->dseg_0_address; 3200 3201 if (cmd->use_sg) { /* If scatter gather */ 3202 dprintk(3, "Building S/G data segments..\n"); 3203 qla1280_dump_buffer(1, (char *)sg, 4 * 16); 3204 3205 /* Load command entry data segments. */ 3206 for_each_sg(sg, s, seg_cnt, cnt) { 3207 if (cnt == 4) 3208 break; 3209 *dword_ptr++ = 3210 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); 3211 *dword_ptr++ = cpu_to_le32(sg_dma_len(s)); 3212 dprintk(3, "S/G Segment phys_addr=0x%lx, len=0x%x\n", 3213 (pci_dma_lo32(sg_dma_address(s))), 3214 (sg_dma_len(s))); 3215 remseg--; 3216 } 3217 /* 3218 * Build continuation packets. 3219 */ 3220 dprintk(3, "S/G Building Continuation" 3221 "...seg_cnt=0x%x remains\n", seg_cnt); 3222 while (remseg > 0) { 3223 /* Continue from end point */ 3224 sg = s; 3225 /* Adjust ring index. */ 3226 ha->req_ring_index++; 3227 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3228 ha->req_ring_index = 0; 3229 ha->request_ring_ptr = 3230 ha->request_ring; 3231 } else 3232 ha->request_ring_ptr++; 3233 3234 pkt = (struct cmd_entry *)ha->request_ring_ptr; 3235 3236 /* Zero out packet. */ 3237 memset(pkt, 0, REQUEST_ENTRY_SIZE); 3238 3239 /* Load packet defaults. */ 3240 ((struct cont_entry *) pkt)-> 3241 entry_type = CONTINUE_TYPE; 3242 ((struct cont_entry *) pkt)->entry_count = 1; 3243 3244 ((struct cont_entry *) pkt)->sys_define = 3245 (uint8_t) ha->req_ring_index; 3246 3247 /* Setup packet address segment pointer. */ 3248 dword_ptr = 3249 &((struct cont_entry *) pkt)->dseg_0_address; 3250 3251 /* Load continuation entry data segments. */ 3252 for_each_sg(sg, s, remseg, cnt) { 3253 if (cnt == 7) 3254 break; 3255 *dword_ptr++ = 3256 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))); 3257 *dword_ptr++ = 3258 cpu_to_le32(sg_dma_len(s)); 3259 dprintk(1, 3260 "S/G Segment Cont. phys_addr=0x%x, " 3261 "len=0x%x\n", 3262 cpu_to_le32(pci_dma_lo32(sg_dma_address(s))), 3263 cpu_to_le32(sg_dma_len(s))); 3264 } 3265 remseg -= cnt; 3266 dprintk(5, "qla1280_32bit_start_scsi: " 3267 "continuation packet data - " 3268 "scsi(%i:%i:%i)\n", SCSI_BUS_32(cmd), 3269 SCSI_TCN_32(cmd), SCSI_LUN_32(cmd)); 3270 qla1280_dump_buffer(5, (char *)pkt, 3271 REQUEST_ENTRY_SIZE); 3272 } 3273 } else { /* No S/G data transfer */ 3274 dma_handle = pci_map_single(ha->pdev, 3275 cmd->request_buffer, 3276 cmd->request_bufflen, 3277 cmd->sc_data_direction); 3278 sp->saved_dma_handle = dma_handle; 3279 3280 *dword_ptr++ = cpu_to_le32(pci_dma_lo32(dma_handle)); 3281 *dword_ptr = cpu_to_le32(cmd->request_bufflen); 3282 } 3283 } else { /* No data transfer at all */ 3284 dprintk(5, "qla1280_32bit_start_scsi: No data, command " 3285 "packet data - \n"); 3286 qla1280_dump_buffer(5, (char *)pkt, REQUEST_ENTRY_SIZE); 3287 } 3288 dprintk(5, "qla1280_32bit_start_scsi: First IOCB block:\n"); 3289 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, 3290 REQUEST_ENTRY_SIZE); 3291 3292 /* Adjust ring index. */ 3293 ha->req_ring_index++; 3294 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3295 ha->req_ring_index = 0; 3296 ha->request_ring_ptr = ha->request_ring; 3297 } else 3298 ha->request_ring_ptr++; 3299 3300 /* Set chip new ring index. */ 3301 dprintk(2, "qla1280_32bit_start_scsi: Wakeup RISC " 3302 "for pending command\n"); 3303 sp->flags |= SRB_SENT; 3304 ha->actthreads++; 3305 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3306 /* Enforce mmio write ordering; see comment in qla1280_isp_cmd(). */ 3307 mmiowb(); 3308 3309 out: 3310 if (status) 3311 dprintk(2, "qla1280_32bit_start_scsi: **** FAILED ****\n"); 3312 3313 LEAVE("qla1280_32bit_start_scsi"); 3314 3315 return status; 3316 } 3317 #endif 3318 3319 /* 3320 * qla1280_req_pkt 3321 * Function is responsible for locking ring and 3322 * getting a zeroed out request packet. 3323 * 3324 * Input: 3325 * ha = adapter block pointer. 3326 * 3327 * Returns: 3328 * 0 = failed to get slot. 3329 */ 3330 static request_t * 3331 qla1280_req_pkt(struct scsi_qla_host *ha) 3332 { 3333 struct device_reg __iomem *reg = ha->iobase; 3334 request_t *pkt = NULL; 3335 int cnt; 3336 uint32_t timer; 3337 3338 ENTER("qla1280_req_pkt"); 3339 3340 /* 3341 * This can be called from interrupt context, damn it!!! 3342 */ 3343 /* Wait for 30 seconds for slot. */ 3344 for (timer = 15000000; timer; timer--) { 3345 if (ha->req_q_cnt > 0) { 3346 /* Calculate number of free request entries. */ 3347 cnt = RD_REG_WORD(®->mailbox4); 3348 if (ha->req_ring_index < cnt) 3349 ha->req_q_cnt = cnt - ha->req_ring_index; 3350 else 3351 ha->req_q_cnt = 3352 REQUEST_ENTRY_CNT - (ha->req_ring_index - cnt); 3353 } 3354 3355 /* Found empty request ring slot? */ 3356 if (ha->req_q_cnt > 0) { 3357 ha->req_q_cnt--; 3358 pkt = ha->request_ring_ptr; 3359 3360 /* Zero out packet. */ 3361 memset(pkt, 0, REQUEST_ENTRY_SIZE); 3362 3363 /* 3364 * How can this be right when we have a ring 3365 * size of 512??? 3366 */ 3367 /* Set system defined field. */ 3368 pkt->sys_define = (uint8_t) ha->req_ring_index; 3369 3370 /* Set entry count. */ 3371 pkt->entry_count = 1; 3372 3373 break; 3374 } 3375 3376 udelay(2); /* 10 */ 3377 3378 /* Check for pending interrupts. */ 3379 qla1280_poll(ha); 3380 } 3381 3382 if (!pkt) 3383 dprintk(2, "qla1280_req_pkt: **** FAILED ****\n"); 3384 else 3385 dprintk(3, "qla1280_req_pkt: exiting normally\n"); 3386 3387 return pkt; 3388 } 3389 3390 /* 3391 * qla1280_isp_cmd 3392 * Function is responsible for modifying ISP input pointer. 3393 * Releases ring lock. 3394 * 3395 * Input: 3396 * ha = adapter block pointer. 3397 */ 3398 static void 3399 qla1280_isp_cmd(struct scsi_qla_host *ha) 3400 { 3401 struct device_reg __iomem *reg = ha->iobase; 3402 3403 ENTER("qla1280_isp_cmd"); 3404 3405 dprintk(5, "qla1280_isp_cmd: IOCB data:\n"); 3406 qla1280_dump_buffer(5, (char *)ha->request_ring_ptr, 3407 REQUEST_ENTRY_SIZE); 3408 3409 /* Adjust ring index. */ 3410 ha->req_ring_index++; 3411 if (ha->req_ring_index == REQUEST_ENTRY_CNT) { 3412 ha->req_ring_index = 0; 3413 ha->request_ring_ptr = ha->request_ring; 3414 } else 3415 ha->request_ring_ptr++; 3416 3417 /* 3418 * Update request index to mailbox4 (Request Queue In). 3419 * The mmiowb() ensures that this write is ordered with writes by other 3420 * CPUs. Without the mmiowb(), it is possible for the following: 3421 * CPUA posts write of index 5 to mailbox4 3422 * CPUA releases host lock 3423 * CPUB acquires host lock 3424 * CPUB posts write of index 6 to mailbox4 3425 * On PCI bus, order reverses and write of 6 posts, then index 5, 3426 * causing chip to issue full queue of stale commands 3427 * The mmiowb() prevents future writes from crossing the barrier. 3428 * See Documentation/DocBook/deviceiobook.tmpl for more information. 3429 */ 3430 WRT_REG_WORD(®->mailbox4, ha->req_ring_index); 3431 mmiowb(); 3432 3433 LEAVE("qla1280_isp_cmd"); 3434 } 3435 3436 /****************************************************************************/ 3437 /* Interrupt Service Routine. */ 3438 /****************************************************************************/ 3439 3440 /**************************************************************************** 3441 * qla1280_isr 3442 * Calls I/O done on command completion. 3443 * 3444 * Input: 3445 * ha = adapter block pointer. 3446 * done_q = done queue. 3447 ****************************************************************************/ 3448 static void 3449 qla1280_isr(struct scsi_qla_host *ha, struct list_head *done_q) 3450 { 3451 struct device_reg __iomem *reg = ha->iobase; 3452 struct response *pkt; 3453 struct srb *sp = NULL; 3454 uint16_t mailbox[MAILBOX_REGISTER_COUNT]; 3455 uint16_t *wptr; 3456 uint32_t index; 3457 u16 istatus; 3458 3459 ENTER("qla1280_isr"); 3460 3461 istatus = RD_REG_WORD(®->istatus); 3462 if (!(istatus & (RISC_INT | PCI_INT))) 3463 return; 3464 3465 /* Save mailbox register 5 */ 3466 mailbox[5] = RD_REG_WORD(®->mailbox5); 3467 3468 /* Check for mailbox interrupt. */ 3469 3470 mailbox[0] = RD_REG_WORD_dmasync(®->semaphore); 3471 3472 if (mailbox[0] & BIT_0) { 3473 /* Get mailbox data. */ 3474 /* dprintk(1, "qla1280_isr: In Get mailbox data \n"); */ 3475 3476 wptr = &mailbox[0]; 3477 *wptr++ = RD_REG_WORD(®->mailbox0); 3478 *wptr++ = RD_REG_WORD(®->mailbox1); 3479 *wptr = RD_REG_WORD(®->mailbox2); 3480 if (mailbox[0] != MBA_SCSI_COMPLETION) { 3481 wptr++; 3482 *wptr++ = RD_REG_WORD(®->mailbox3); 3483 *wptr++ = RD_REG_WORD(®->mailbox4); 3484 wptr++; 3485 *wptr++ = RD_REG_WORD(®->mailbox6); 3486 *wptr = RD_REG_WORD(®->mailbox7); 3487 } 3488 3489 /* Release mailbox registers. */ 3490 3491 WRT_REG_WORD(®->semaphore, 0); 3492 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); 3493 3494 dprintk(5, "qla1280_isr: mailbox interrupt mailbox[0] = 0x%x", 3495 mailbox[0]); 3496 3497 /* Handle asynchronous event */ 3498 switch (mailbox[0]) { 3499 case MBA_SCSI_COMPLETION: /* Response completion */ 3500 dprintk(5, "qla1280_isr: mailbox SCSI response " 3501 "completion\n"); 3502 3503 if (ha->flags.online) { 3504 /* Get outstanding command index. */ 3505 index = mailbox[2] << 16 | mailbox[1]; 3506 3507 /* Validate handle. */ 3508 if (index < MAX_OUTSTANDING_COMMANDS) 3509 sp = ha->outstanding_cmds[index]; 3510 else 3511 sp = NULL; 3512 3513 if (sp) { 3514 /* Free outstanding command slot. */ 3515 ha->outstanding_cmds[index] = NULL; 3516 3517 /* Save ISP completion status */ 3518 CMD_RESULT(sp->cmd) = 0; 3519 3520 /* Place block on done queue */ 3521 list_add_tail(&sp->list, done_q); 3522 } else { 3523 /* 3524 * If we get here we have a real problem! 3525 */ 3526 printk(KERN_WARNING 3527 "qla1280: ISP invalid handle"); 3528 } 3529 } 3530 break; 3531 3532 case MBA_BUS_RESET: /* SCSI Bus Reset */ 3533 ha->flags.reset_marker = 1; 3534 index = mailbox[6] & BIT_0; 3535 ha->bus_settings[index].reset_marker = 1; 3536 3537 printk(KERN_DEBUG "qla1280_isr(): index %i " 3538 "asynchronous BUS_RESET\n", index); 3539 break; 3540 3541 case MBA_SYSTEM_ERR: /* System Error */ 3542 printk(KERN_WARNING 3543 "qla1280: ISP System Error - mbx1=%xh, mbx2=" 3544 "%xh, mbx3=%xh\n", mailbox[1], mailbox[2], 3545 mailbox[3]); 3546 break; 3547 3548 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 3549 printk(KERN_WARNING 3550 "qla1280: ISP Request Transfer Error\n"); 3551 break; 3552 3553 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 3554 printk(KERN_WARNING 3555 "qla1280: ISP Response Transfer Error\n"); 3556 break; 3557 3558 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 3559 dprintk(2, "qla1280_isr: asynchronous WAKEUP_THRES\n"); 3560 break; 3561 3562 case MBA_TIMEOUT_RESET: /* Execution Timeout Reset */ 3563 dprintk(2, 3564 "qla1280_isr: asynchronous TIMEOUT_RESET\n"); 3565 break; 3566 3567 case MBA_DEVICE_RESET: /* Bus Device Reset */ 3568 printk(KERN_INFO "qla1280_isr(): asynchronous " 3569 "BUS_DEVICE_RESET\n"); 3570 3571 ha->flags.reset_marker = 1; 3572 index = mailbox[6] & BIT_0; 3573 ha->bus_settings[index].reset_marker = 1; 3574 break; 3575 3576 case MBA_BUS_MODE_CHANGE: 3577 dprintk(2, 3578 "qla1280_isr: asynchronous BUS_MODE_CHANGE\n"); 3579 break; 3580 3581 default: 3582 /* dprintk(1, "qla1280_isr: default case of switch MB \n"); */ 3583 if (mailbox[0] < MBA_ASYNC_EVENT) { 3584 wptr = &mailbox[0]; 3585 memcpy((uint16_t *) ha->mailbox_out, wptr, 3586 MAILBOX_REGISTER_COUNT * 3587 sizeof(uint16_t)); 3588 3589 if(ha->mailbox_wait != NULL) 3590 complete(ha->mailbox_wait); 3591 } 3592 break; 3593 } 3594 } else { 3595 WRT_REG_WORD(®->host_cmd, HC_CLR_RISC_INT); 3596 } 3597 3598 /* 3599 * We will receive interrupts during mailbox testing prior to 3600 * the card being marked online, hence the double check. 3601 */ 3602 if (!(ha->flags.online && !ha->mailbox_wait)) { 3603 dprintk(2, "qla1280_isr: Response pointer Error\n"); 3604 goto out; 3605 } 3606 3607 if (mailbox[5] >= RESPONSE_ENTRY_CNT) 3608 goto out; 3609 3610 while (ha->rsp_ring_index != mailbox[5]) { 3611 pkt = ha->response_ring_ptr; 3612 3613 dprintk(5, "qla1280_isr: ha->rsp_ring_index = 0x%x, mailbox[5]" 3614 " = 0x%x\n", ha->rsp_ring_index, mailbox[5]); 3615 dprintk(5,"qla1280_isr: response packet data\n"); 3616 qla1280_dump_buffer(5, (char *)pkt, RESPONSE_ENTRY_SIZE); 3617 3618 if (pkt->entry_type == STATUS_TYPE) { 3619 if ((le16_to_cpu(pkt->scsi_status) & 0xff) 3620 || pkt->comp_status || pkt->entry_status) { 3621 dprintk(2, "qla1280_isr: ha->rsp_ring_index = " 3622 "0x%x mailbox[5] = 0x%x, comp_status " 3623 "= 0x%x, scsi_status = 0x%x\n", 3624 ha->rsp_ring_index, mailbox[5], 3625 le16_to_cpu(pkt->comp_status), 3626 le16_to_cpu(pkt->scsi_status)); 3627 } 3628 } else { 3629 dprintk(2, "qla1280_isr: ha->rsp_ring_index = " 3630 "0x%x, mailbox[5] = 0x%x\n", 3631 ha->rsp_ring_index, mailbox[5]); 3632 dprintk(2, "qla1280_isr: response packet data\n"); 3633 qla1280_dump_buffer(2, (char *)pkt, 3634 RESPONSE_ENTRY_SIZE); 3635 } 3636 3637 if (pkt->entry_type == STATUS_TYPE || pkt->entry_status) { 3638 dprintk(2, "status: Cmd %p, handle %i\n", 3639 ha->outstanding_cmds[pkt->handle]->cmd, 3640 pkt->handle); 3641 if (pkt->entry_type == STATUS_TYPE) 3642 qla1280_status_entry(ha, pkt, done_q); 3643 else 3644 qla1280_error_entry(ha, pkt, done_q); 3645 /* Adjust ring index. */ 3646 ha->rsp_ring_index++; 3647 if (ha->rsp_ring_index == RESPONSE_ENTRY_CNT) { 3648 ha->rsp_ring_index = 0; 3649 ha->response_ring_ptr = ha->response_ring; 3650 } else 3651 ha->response_ring_ptr++; 3652 WRT_REG_WORD(®->mailbox5, ha->rsp_ring_index); 3653 } 3654 } 3655 3656 out: 3657 LEAVE("qla1280_isr"); 3658 } 3659 3660 /* 3661 * qla1280_rst_aen 3662 * Processes asynchronous reset. 3663 * 3664 * Input: 3665 * ha = adapter block pointer. 3666 */ 3667 static void 3668 qla1280_rst_aen(struct scsi_qla_host *ha) 3669 { 3670 uint8_t bus; 3671 3672 ENTER("qla1280_rst_aen"); 3673 3674 if (ha->flags.online && !ha->flags.reset_active && 3675 !ha->flags.abort_isp_active) { 3676 ha->flags.reset_active = 1; 3677 while (ha->flags.reset_marker) { 3678 /* Issue marker command. */ 3679 ha->flags.reset_marker = 0; 3680 for (bus = 0; bus < ha->ports && 3681 !ha->flags.reset_marker; bus++) { 3682 if (ha->bus_settings[bus].reset_marker) { 3683 ha->bus_settings[bus].reset_marker = 0; 3684 qla1280_marker(ha, bus, 0, 0, 3685 MK_SYNC_ALL); 3686 } 3687 } 3688 } 3689 } 3690 3691 LEAVE("qla1280_rst_aen"); 3692 } 3693 3694 3695 /* 3696 * qla1280_status_entry 3697 * Processes received ISP status entry. 3698 * 3699 * Input: 3700 * ha = adapter block pointer. 3701 * pkt = entry pointer. 3702 * done_q = done queue. 3703 */ 3704 static void 3705 qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt, 3706 struct list_head *done_q) 3707 { 3708 unsigned int bus, target, lun; 3709 int sense_sz; 3710 struct srb *sp; 3711 struct scsi_cmnd *cmd; 3712 uint32_t handle = le32_to_cpu(pkt->handle); 3713 uint16_t scsi_status = le16_to_cpu(pkt->scsi_status); 3714 uint16_t comp_status = le16_to_cpu(pkt->comp_status); 3715 3716 ENTER("qla1280_status_entry"); 3717 3718 /* Validate handle. */ 3719 if (handle < MAX_OUTSTANDING_COMMANDS) 3720 sp = ha->outstanding_cmds[handle]; 3721 else 3722 sp = NULL; 3723 3724 if (!sp) { 3725 printk(KERN_WARNING "qla1280: Status Entry invalid handle\n"); 3726 goto out; 3727 } 3728 3729 /* Free outstanding command slot. */ 3730 ha->outstanding_cmds[handle] = NULL; 3731 3732 cmd = sp->cmd; 3733 3734 /* Generate LU queue on cntrl, target, LUN */ 3735 bus = SCSI_BUS_32(cmd); 3736 target = SCSI_TCN_32(cmd); 3737 lun = SCSI_LUN_32(cmd); 3738 3739 if (comp_status || scsi_status) { 3740 dprintk(3, "scsi: comp_status = 0x%x, scsi_status = " 3741 "0x%x, handle = 0x%x\n", comp_status, 3742 scsi_status, handle); 3743 } 3744 3745 /* Target busy or queue full */ 3746 if ((scsi_status & 0xFF) == SAM_STAT_TASK_SET_FULL || 3747 (scsi_status & 0xFF) == SAM_STAT_BUSY) { 3748 CMD_RESULT(cmd) = scsi_status & 0xff; 3749 } else { 3750 3751 /* Save ISP completion status */ 3752 CMD_RESULT(cmd) = qla1280_return_status(pkt, cmd); 3753 3754 if (scsi_status & SAM_STAT_CHECK_CONDITION) { 3755 if (comp_status != CS_ARS_FAILED) { 3756 uint16_t req_sense_length = 3757 le16_to_cpu(pkt->req_sense_length); 3758 if (req_sense_length < CMD_SNSLEN(cmd)) 3759 sense_sz = req_sense_length; 3760 else 3761 /* 3762 * scsi_cmnd->sense_buffer is 3763 * 64 bytes, why only copy 63? 3764 * This looks wrong! /Jes 3765 */ 3766 sense_sz = CMD_SNSLEN(cmd) - 1; 3767 3768 memcpy(cmd->sense_buffer, 3769 &pkt->req_sense_data, sense_sz); 3770 } else 3771 sense_sz = 0; 3772 memset(cmd->sense_buffer + sense_sz, 0, 3773 sizeof(cmd->sense_buffer) - sense_sz); 3774 3775 dprintk(2, "qla1280_status_entry: Check " 3776 "condition Sense data, b %i, t %i, " 3777 "l %i\n", bus, target, lun); 3778 if (sense_sz) 3779 qla1280_dump_buffer(2, 3780 (char *)cmd->sense_buffer, 3781 sense_sz); 3782 } 3783 } 3784 3785 /* Place command on done queue. */ 3786 list_add_tail(&sp->list, done_q); 3787 out: 3788 LEAVE("qla1280_status_entry"); 3789 } 3790 3791 /* 3792 * qla1280_error_entry 3793 * Processes error entry. 3794 * 3795 * Input: 3796 * ha = adapter block pointer. 3797 * pkt = entry pointer. 3798 * done_q = done queue. 3799 */ 3800 static void 3801 qla1280_error_entry(struct scsi_qla_host *ha, struct response *pkt, 3802 struct list_head *done_q) 3803 { 3804 struct srb *sp; 3805 uint32_t handle = le32_to_cpu(pkt->handle); 3806 3807 ENTER("qla1280_error_entry"); 3808 3809 if (pkt->entry_status & BIT_3) 3810 dprintk(2, "qla1280_error_entry: BAD PAYLOAD flag error\n"); 3811 else if (pkt->entry_status & BIT_2) 3812 dprintk(2, "qla1280_error_entry: BAD HEADER flag error\n"); 3813 else if (pkt->entry_status & BIT_1) 3814 dprintk(2, "qla1280_error_entry: FULL flag error\n"); 3815 else 3816 dprintk(2, "qla1280_error_entry: UNKNOWN flag error\n"); 3817 3818 /* Validate handle. */ 3819 if (handle < MAX_OUTSTANDING_COMMANDS) 3820 sp = ha->outstanding_cmds[handle]; 3821 else 3822 sp = NULL; 3823 3824 if (sp) { 3825 /* Free outstanding command slot. */ 3826 ha->outstanding_cmds[handle] = NULL; 3827 3828 /* Bad payload or header */ 3829 if (pkt->entry_status & (BIT_3 + BIT_2)) { 3830 /* Bad payload or header, set error status. */ 3831 /* CMD_RESULT(sp->cmd) = CS_BAD_PAYLOAD; */ 3832 CMD_RESULT(sp->cmd) = DID_ERROR << 16; 3833 } else if (pkt->entry_status & BIT_1) { /* FULL flag */ 3834 CMD_RESULT(sp->cmd) = DID_BUS_BUSY << 16; 3835 } else { 3836 /* Set error status. */ 3837 CMD_RESULT(sp->cmd) = DID_ERROR << 16; 3838 } 3839 3840 /* Place command on done queue. */ 3841 list_add_tail(&sp->list, done_q); 3842 } 3843 #ifdef QLA_64BIT_PTR 3844 else if (pkt->entry_type == COMMAND_A64_TYPE) { 3845 printk(KERN_WARNING "!qla1280: Error Entry invalid handle"); 3846 } 3847 #endif 3848 3849 LEAVE("qla1280_error_entry"); 3850 } 3851 3852 /* 3853 * qla1280_abort_isp 3854 * Resets ISP and aborts all outstanding commands. 3855 * 3856 * Input: 3857 * ha = adapter block pointer. 3858 * 3859 * Returns: 3860 * 0 = success 3861 */ 3862 static int 3863 qla1280_abort_isp(struct scsi_qla_host *ha) 3864 { 3865 struct device_reg __iomem *reg = ha->iobase; 3866 struct srb *sp; 3867 int status = 0; 3868 int cnt; 3869 int bus; 3870 3871 ENTER("qla1280_abort_isp"); 3872 3873 if (ha->flags.abort_isp_active || !ha->flags.online) 3874 goto out; 3875 3876 ha->flags.abort_isp_active = 1; 3877 3878 /* Disable ISP interrupts. */ 3879 qla1280_disable_intrs(ha); 3880 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); 3881 RD_REG_WORD(®->id_l); 3882 3883 printk(KERN_INFO "scsi(%li): dequeuing outstanding commands\n", 3884 ha->host_no); 3885 /* Dequeue all commands in outstanding command list. */ 3886 for (cnt = 0; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) { 3887 struct scsi_cmnd *cmd; 3888 sp = ha->outstanding_cmds[cnt]; 3889 if (sp) { 3890 3891 cmd = sp->cmd; 3892 CMD_RESULT(cmd) = DID_RESET << 16; 3893 3894 sp->cmd = NULL; 3895 ha->outstanding_cmds[cnt] = NULL; 3896 3897 (*cmd->scsi_done)(cmd); 3898 3899 sp->flags = 0; 3900 } 3901 } 3902 3903 status = qla1280_load_firmware(ha); 3904 if (status) 3905 goto out; 3906 3907 /* Setup adapter based on NVRAM parameters. */ 3908 qla1280_nvram_config (ha); 3909 3910 status = qla1280_init_rings(ha); 3911 if (status) 3912 goto out; 3913 3914 /* Issue SCSI reset. */ 3915 for (bus = 0; bus < ha->ports; bus++) 3916 qla1280_bus_reset(ha, bus); 3917 3918 ha->flags.abort_isp_active = 0; 3919 out: 3920 if (status) { 3921 printk(KERN_WARNING 3922 "qla1280: ISP error recovery failed, board disabled"); 3923 qla1280_reset_adapter(ha); 3924 dprintk(2, "qla1280_abort_isp: **** FAILED ****\n"); 3925 } 3926 3927 LEAVE("qla1280_abort_isp"); 3928 return status; 3929 } 3930 3931 3932 /* 3933 * qla1280_debounce_register 3934 * Debounce register. 3935 * 3936 * Input: 3937 * port = register address. 3938 * 3939 * Returns: 3940 * register value. 3941 */ 3942 static u16 3943 qla1280_debounce_register(volatile u16 __iomem * addr) 3944 { 3945 volatile u16 ret; 3946 volatile u16 ret2; 3947 3948 ret = RD_REG_WORD(addr); 3949 ret2 = RD_REG_WORD(addr); 3950 3951 if (ret == ret2) 3952 return ret; 3953 3954 do { 3955 cpu_relax(); 3956 ret = RD_REG_WORD(addr); 3957 ret2 = RD_REG_WORD(addr); 3958 } while (ret != ret2); 3959 3960 return ret; 3961 } 3962 3963 3964 /************************************************************************ 3965 * qla1280_check_for_dead_scsi_bus * 3966 * * 3967 * This routine checks for a dead SCSI bus * 3968 ************************************************************************/ 3969 #define SET_SXP_BANK 0x0100 3970 #define SCSI_PHASE_INVALID 0x87FF 3971 static int 3972 qla1280_check_for_dead_scsi_bus(struct scsi_qla_host *ha, unsigned int bus) 3973 { 3974 uint16_t config_reg, scsi_control; 3975 struct device_reg __iomem *reg = ha->iobase; 3976 3977 if (ha->bus_settings[bus].scsi_bus_dead) { 3978 WRT_REG_WORD(®->host_cmd, HC_PAUSE_RISC); 3979 config_reg = RD_REG_WORD(®->cfg_1); 3980 WRT_REG_WORD(®->cfg_1, SET_SXP_BANK); 3981 scsi_control = RD_REG_WORD(®->scsiControlPins); 3982 WRT_REG_WORD(®->cfg_1, config_reg); 3983 WRT_REG_WORD(®->host_cmd, HC_RELEASE_RISC); 3984 3985 if (scsi_control == SCSI_PHASE_INVALID) { 3986 ha->bus_settings[bus].scsi_bus_dead = 1; 3987 #if 0 3988 CMD_RESULT(cp) = DID_NO_CONNECT << 16; 3989 CMD_HANDLE(cp) = INVALID_HANDLE; 3990 /* ha->actthreads--; */ 3991 3992 (*(cp)->scsi_done)(cp); 3993 #endif 3994 return 1; /* bus is dead */ 3995 } else { 3996 ha->bus_settings[bus].scsi_bus_dead = 0; 3997 ha->bus_settings[bus].failed_reset_count = 0; 3998 } 3999 } 4000 return 0; /* bus is not dead */ 4001 } 4002 4003 static void 4004 qla1280_get_target_parameters(struct scsi_qla_host *ha, 4005 struct scsi_device *device) 4006 { 4007 uint16_t mb[MAILBOX_REGISTER_COUNT]; 4008 int bus, target, lun; 4009 4010 bus = device->channel; 4011 target = device->id; 4012 lun = device->lun; 4013 4014 4015 mb[0] = MBC_GET_TARGET_PARAMETERS; 4016 mb[1] = (uint16_t) (bus ? target | BIT_7 : target); 4017 mb[1] <<= 8; 4018 qla1280_mailbox_command(ha, BIT_6 | BIT_3 | BIT_2 | BIT_1 | BIT_0, 4019 &mb[0]); 4020 4021 printk(KERN_INFO "scsi(%li:%d:%d:%d):", ha->host_no, bus, target, lun); 4022 4023 if (mb[3] != 0) { 4024 printk(" Sync: period %d, offset %d", 4025 (mb[3] & 0xff), (mb[3] >> 8)); 4026 if (mb[2] & BIT_13) 4027 printk(", Wide"); 4028 if ((mb[2] & BIT_5) && ((mb[6] >> 8) & 0xff) >= 2) 4029 printk(", DT"); 4030 } else 4031 printk(" Async"); 4032 4033 if (device->simple_tags) 4034 printk(", Tagged queuing: depth %d", device->queue_depth); 4035 printk("\n"); 4036 } 4037 4038 4039 #if DEBUG_QLA1280 4040 static void 4041 __qla1280_dump_buffer(char *b, int size) 4042 { 4043 int cnt; 4044 u8 c; 4045 4046 printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 Ah " 4047 "Bh Ch Dh Eh Fh\n"); 4048 printk(KERN_DEBUG "---------------------------------------------" 4049 "------------------\n"); 4050 4051 for (cnt = 0; cnt < size;) { 4052 c = *b++; 4053 4054 printk("0x%02x", c); 4055 cnt++; 4056 if (!(cnt % 16)) 4057 printk("\n"); 4058 else 4059 printk(" "); 4060 } 4061 if (cnt % 16) 4062 printk("\n"); 4063 } 4064 4065 /************************************************************************** 4066 * ql1280_print_scsi_cmd 4067 * 4068 **************************************************************************/ 4069 static void 4070 __qla1280_print_scsi_cmd(struct scsi_cmnd *cmd) 4071 { 4072 struct scsi_qla_host *ha; 4073 struct Scsi_Host *host = CMD_HOST(cmd); 4074 struct srb *sp; 4075 /* struct scatterlist *sg; */ 4076 4077 int i; 4078 ha = (struct scsi_qla_host *)host->hostdata; 4079 4080 sp = (struct srb *)CMD_SP(cmd); 4081 printk("SCSI Command @= 0x%p, Handle=0x%p\n", cmd, CMD_HANDLE(cmd)); 4082 printk(" chan=%d, target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n", 4083 SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), SCSI_LUN_32(cmd), 4084 CMD_CDBLEN(cmd)); 4085 printk(" CDB = "); 4086 for (i = 0; i < cmd->cmd_len; i++) { 4087 printk("0x%02x ", cmd->cmnd[i]); 4088 } 4089 printk(" seg_cnt =%d\n", cmd->use_sg); 4090 printk(" request buffer=0x%p, request buffer len=0x%x\n", 4091 cmd->request_buffer, cmd->request_bufflen); 4092 /* if (cmd->use_sg) 4093 { 4094 sg = (struct scatterlist *) cmd->request_buffer; 4095 printk(" SG buffer: \n"); 4096 qla1280_dump_buffer(1, (char *)sg, (cmd->use_sg*sizeof(struct scatterlist))); 4097 } */ 4098 printk(" tag=%d, transfersize=0x%x \n", 4099 cmd->tag, cmd->transfersize); 4100 printk(" Pid=%li, SP=0x%p\n", cmd->serial_number, CMD_SP(cmd)); 4101 printk(" underflow size = 0x%x, direction=0x%x\n", 4102 cmd->underflow, cmd->sc_data_direction); 4103 } 4104 4105 /************************************************************************** 4106 * ql1280_dump_device 4107 * 4108 **************************************************************************/ 4109 static void 4110 ql1280_dump_device(struct scsi_qla_host *ha) 4111 { 4112 4113 struct scsi_cmnd *cp; 4114 struct srb *sp; 4115 int i; 4116 4117 printk(KERN_DEBUG "Outstanding Commands on controller:\n"); 4118 4119 for (i = 0; i < MAX_OUTSTANDING_COMMANDS; i++) { 4120 if ((sp = ha->outstanding_cmds[i]) == NULL) 4121 continue; 4122 if ((cp = sp->cmd) == NULL) 4123 continue; 4124 qla1280_print_scsi_cmd(1, cp); 4125 } 4126 } 4127 #endif 4128 4129 4130 enum tokens { 4131 TOKEN_NVRAM, 4132 TOKEN_SYNC, 4133 TOKEN_WIDE, 4134 TOKEN_PPR, 4135 TOKEN_VERBOSE, 4136 TOKEN_DEBUG, 4137 }; 4138 4139 struct setup_tokens { 4140 char *token; 4141 int val; 4142 }; 4143 4144 static struct setup_tokens setup_token[] __initdata = 4145 { 4146 { "nvram", TOKEN_NVRAM }, 4147 { "sync", TOKEN_SYNC }, 4148 { "wide", TOKEN_WIDE }, 4149 { "ppr", TOKEN_PPR }, 4150 { "verbose", TOKEN_VERBOSE }, 4151 { "debug", TOKEN_DEBUG }, 4152 }; 4153 4154 4155 /************************************************************************** 4156 * qla1280_setup 4157 * 4158 * Handle boot parameters. This really needs to be changed so one 4159 * can specify per adapter parameters. 4160 **************************************************************************/ 4161 static int __init 4162 qla1280_setup(char *s) 4163 { 4164 char *cp, *ptr; 4165 unsigned long val; 4166 int toke; 4167 4168 cp = s; 4169 4170 while (cp && (ptr = strchr(cp, ':'))) { 4171 ptr++; 4172 if (!strcmp(ptr, "yes")) { 4173 val = 0x10000; 4174 ptr += 3; 4175 } else if (!strcmp(ptr, "no")) { 4176 val = 0; 4177 ptr += 2; 4178 } else 4179 val = simple_strtoul(ptr, &ptr, 0); 4180 4181 switch ((toke = qla1280_get_token(cp))) { 4182 case TOKEN_NVRAM: 4183 if (!val) 4184 driver_setup.no_nvram = 1; 4185 break; 4186 case TOKEN_SYNC: 4187 if (!val) 4188 driver_setup.no_sync = 1; 4189 else if (val != 0x10000) 4190 driver_setup.sync_mask = val; 4191 break; 4192 case TOKEN_WIDE: 4193 if (!val) 4194 driver_setup.no_wide = 1; 4195 else if (val != 0x10000) 4196 driver_setup.wide_mask = val; 4197 break; 4198 case TOKEN_PPR: 4199 if (!val) 4200 driver_setup.no_ppr = 1; 4201 else if (val != 0x10000) 4202 driver_setup.ppr_mask = val; 4203 break; 4204 case TOKEN_VERBOSE: 4205 qla1280_verbose = val; 4206 break; 4207 default: 4208 printk(KERN_INFO "qla1280: unknown boot option %s\n", 4209 cp); 4210 } 4211 4212 cp = strchr(ptr, ';'); 4213 if (cp) 4214 cp++; 4215 else { 4216 break; 4217 } 4218 } 4219 return 1; 4220 } 4221 4222 4223 static int __init 4224 qla1280_get_token(char *str) 4225 { 4226 char *sep; 4227 long ret = -1; 4228 int i; 4229 4230 sep = strchr(str, ':'); 4231 4232 if (sep) { 4233 for (i = 0; i < ARRAY_SIZE(setup_token); i++) { 4234 if (!strncmp(setup_token[i].token, str, (sep - str))) { 4235 ret = setup_token[i].val; 4236 break; 4237 } 4238 } 4239 } 4240 4241 return ret; 4242 } 4243 4244 4245 static struct scsi_host_template qla1280_driver_template = { 4246 .module = THIS_MODULE, 4247 .proc_name = "qla1280", 4248 .name = "Qlogic ISP 1280/12160", 4249 .info = qla1280_info, 4250 .slave_configure = qla1280_slave_configure, 4251 .queuecommand = qla1280_queuecommand, 4252 .eh_abort_handler = qla1280_eh_abort, 4253 .eh_device_reset_handler= qla1280_eh_device_reset, 4254 .eh_bus_reset_handler = qla1280_eh_bus_reset, 4255 .eh_host_reset_handler = qla1280_eh_adapter_reset, 4256 .bios_param = qla1280_biosparam, 4257 .can_queue = 0xfffff, 4258 .this_id = -1, 4259 .sg_tablesize = SG_ALL, 4260 .cmd_per_lun = 1, 4261 .use_clustering = ENABLE_CLUSTERING, 4262 .use_sg_chaining = ENABLE_SG_CHAINING, 4263 }; 4264 4265 4266 static int __devinit 4267 qla1280_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) 4268 { 4269 int devnum = id->driver_data; 4270 struct qla_boards *bdp = &ql1280_board_tbl[devnum]; 4271 struct Scsi_Host *host; 4272 struct scsi_qla_host *ha; 4273 int error = -ENODEV; 4274 4275 /* Bypass all AMI SUBSYS VENDOR IDs */ 4276 if (pdev->subsystem_vendor == PCI_VENDOR_ID_AMI) { 4277 printk(KERN_INFO 4278 "qla1280: Skipping AMI SubSys Vendor ID Chip\n"); 4279 goto error; 4280 } 4281 4282 printk(KERN_INFO "qla1280: %s found on PCI bus %i, dev %i\n", 4283 bdp->name, pdev->bus->number, PCI_SLOT(pdev->devfn)); 4284 4285 if (pci_enable_device(pdev)) { 4286 printk(KERN_WARNING 4287 "qla1280: Failed to enabled pci device, aborting.\n"); 4288 goto error; 4289 } 4290 4291 pci_set_master(pdev); 4292 4293 error = -ENOMEM; 4294 host = scsi_host_alloc(&qla1280_driver_template, sizeof(*ha)); 4295 if (!host) { 4296 printk(KERN_WARNING 4297 "qla1280: Failed to register host, aborting.\n"); 4298 goto error_disable_device; 4299 } 4300 4301 ha = (struct scsi_qla_host *)host->hostdata; 4302 memset(ha, 0, sizeof(struct scsi_qla_host)); 4303 4304 ha->pdev = pdev; 4305 ha->devnum = devnum; /* specifies microcode load address */ 4306 4307 #ifdef QLA_64BIT_PTR 4308 if (pci_set_dma_mask(ha->pdev, DMA_64BIT_MASK)) { 4309 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) { 4310 printk(KERN_WARNING "scsi(%li): Unable to set a " 4311 "suitable DMA mask - aborting\n", ha->host_no); 4312 error = -ENODEV; 4313 goto error_free_irq; 4314 } 4315 } else 4316 dprintk(2, "scsi(%li): 64 Bit PCI Addressing Enabled\n", 4317 ha->host_no); 4318 #else 4319 if (pci_set_dma_mask(ha->pdev, DMA_32BIT_MASK)) { 4320 printk(KERN_WARNING "scsi(%li): Unable to set a " 4321 "suitable DMA mask - aborting\n", ha->host_no); 4322 error = -ENODEV; 4323 goto error_free_irq; 4324 } 4325 #endif 4326 4327 ha->request_ring = pci_alloc_consistent(ha->pdev, 4328 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)), 4329 &ha->request_dma); 4330 if (!ha->request_ring) { 4331 printk(KERN_INFO "qla1280: Failed to get request memory\n"); 4332 goto error_put_host; 4333 } 4334 4335 ha->response_ring = pci_alloc_consistent(ha->pdev, 4336 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)), 4337 &ha->response_dma); 4338 if (!ha->response_ring) { 4339 printk(KERN_INFO "qla1280: Failed to get response memory\n"); 4340 goto error_free_request_ring; 4341 } 4342 4343 ha->ports = bdp->numPorts; 4344 4345 ha->host = host; 4346 ha->host_no = host->host_no; 4347 4348 host->irq = pdev->irq; 4349 host->max_channel = bdp->numPorts - 1; 4350 host->max_lun = MAX_LUNS - 1; 4351 host->max_id = MAX_TARGETS; 4352 host->max_sectors = 1024; 4353 host->unique_id = host->host_no; 4354 4355 error = -ENODEV; 4356 4357 #if MEMORY_MAPPED_IO 4358 ha->mmpbase = ioremap(pci_resource_start(ha->pdev, 1), 4359 pci_resource_len(ha->pdev, 1)); 4360 if (!ha->mmpbase) { 4361 printk(KERN_INFO "qla1280: Unable to map I/O memory\n"); 4362 goto error_free_response_ring; 4363 } 4364 4365 host->base = (unsigned long)ha->mmpbase; 4366 ha->iobase = (struct device_reg __iomem *)ha->mmpbase; 4367 #else 4368 host->io_port = pci_resource_start(ha->pdev, 0); 4369 if (!request_region(host->io_port, 0xff, "qla1280")) { 4370 printk(KERN_INFO "qla1280: Failed to reserve i/o region " 4371 "0x%04lx-0x%04lx - already in use\n", 4372 host->io_port, host->io_port + 0xff); 4373 goto error_free_response_ring; 4374 } 4375 4376 ha->iobase = (struct device_reg *)host->io_port; 4377 #endif 4378 4379 INIT_LIST_HEAD(&ha->done_q); 4380 4381 /* Disable ISP interrupts. */ 4382 qla1280_disable_intrs(ha); 4383 4384 if (request_irq(pdev->irq, qla1280_intr_handler, IRQF_SHARED, 4385 "qla1280", ha)) { 4386 printk("qla1280 : Failed to reserve interrupt %d already " 4387 "in use\n", pdev->irq); 4388 goto error_release_region; 4389 } 4390 4391 /* load the F/W, read paramaters, and init the H/W */ 4392 if (qla1280_initialize_adapter(ha)) { 4393 printk(KERN_INFO "qla1x160: Failed to initialize adapter\n"); 4394 goto error_free_irq; 4395 } 4396 4397 /* set our host ID (need to do something about our two IDs) */ 4398 host->this_id = ha->bus_settings[0].id; 4399 4400 pci_set_drvdata(pdev, host); 4401 4402 error = scsi_add_host(host, &pdev->dev); 4403 if (error) 4404 goto error_disable_adapter; 4405 scsi_scan_host(host); 4406 4407 return 0; 4408 4409 error_disable_adapter: 4410 qla1280_disable_intrs(ha); 4411 error_free_irq: 4412 free_irq(pdev->irq, ha); 4413 error_release_region: 4414 #if MEMORY_MAPPED_IO 4415 iounmap(ha->mmpbase); 4416 #else 4417 release_region(host->io_port, 0xff); 4418 #endif 4419 error_free_response_ring: 4420 pci_free_consistent(ha->pdev, 4421 ((RESPONSE_ENTRY_CNT + 1) * sizeof(struct response)), 4422 ha->response_ring, ha->response_dma); 4423 error_free_request_ring: 4424 pci_free_consistent(ha->pdev, 4425 ((REQUEST_ENTRY_CNT + 1) * sizeof(request_t)), 4426 ha->request_ring, ha->request_dma); 4427 error_put_host: 4428 scsi_host_put(host); 4429 error_disable_device: 4430 pci_disable_device(pdev); 4431 error: 4432 return error; 4433 } 4434 4435 4436 static void __devexit 4437 qla1280_remove_one(struct pci_dev *pdev) 4438 { 4439 struct Scsi_Host *host = pci_get_drvdata(pdev); 4440 struct scsi_qla_host *ha = (struct scsi_qla_host *)host->hostdata; 4441 4442 scsi_remove_host(host); 4443 4444 qla1280_disable_intrs(ha); 4445 4446 free_irq(pdev->irq, ha); 4447 4448 #if MEMORY_MAPPED_IO 4449 iounmap(ha->mmpbase); 4450 #else 4451 release_region(host->io_port, 0xff); 4452 #endif 4453 4454 pci_free_consistent(ha->pdev, 4455 ((REQUEST_ENTRY_CNT + 1) * (sizeof(request_t))), 4456 ha->request_ring, ha->request_dma); 4457 pci_free_consistent(ha->pdev, 4458 ((RESPONSE_ENTRY_CNT + 1) * (sizeof(struct response))), 4459 ha->response_ring, ha->response_dma); 4460 4461 pci_disable_device(pdev); 4462 4463 scsi_host_put(host); 4464 } 4465 4466 static struct pci_driver qla1280_pci_driver = { 4467 .name = "qla1280", 4468 .id_table = qla1280_pci_tbl, 4469 .probe = qla1280_probe_one, 4470 .remove = __devexit_p(qla1280_remove_one), 4471 }; 4472 4473 static int __init 4474 qla1280_init(void) 4475 { 4476 if (sizeof(struct srb) > sizeof(struct scsi_pointer)) { 4477 printk(KERN_WARNING 4478 "qla1280: struct srb too big, aborting\n"); 4479 return -EINVAL; 4480 } 4481 4482 #ifdef MODULE 4483 /* 4484 * If we are called as a module, the qla1280 pointer may not be null 4485 * and it would point to our bootup string, just like on the lilo 4486 * command line. IF not NULL, then process this config string with 4487 * qla1280_setup 4488 * 4489 * Boot time Options 4490 * To add options at boot time add a line to your lilo.conf file like: 4491 * append="qla1280=verbose,max_tags:{{255,255,255,255},{255,255,255,255}}" 4492 * which will result in the first four devices on the first two 4493 * controllers being set to a tagged queue depth of 32. 4494 */ 4495 if (qla1280) 4496 qla1280_setup(qla1280); 4497 #endif 4498 4499 return pci_register_driver(&qla1280_pci_driver); 4500 } 4501 4502 static void __exit 4503 qla1280_exit(void) 4504 { 4505 pci_unregister_driver(&qla1280_pci_driver); 4506 } 4507 4508 module_init(qla1280_init); 4509 module_exit(qla1280_exit); 4510 4511 4512 MODULE_AUTHOR("Qlogic & Jes Sorensen"); 4513 MODULE_DESCRIPTION("Qlogic ISP SCSI (qla1x80/qla1x160) driver"); 4514 MODULE_LICENSE("GPL"); 4515 MODULE_VERSION(QLA1280_VERSION); 4516 4517 /* 4518 * Overrides for Emacs so that we almost follow Linus's tabbing style. 4519 * Emacs will notice this stuff at the end of the file and automatically 4520 * adjust the settings for this buffer only. This must remain at the end 4521 * of the file. 4522 * --------------------------------------------------------------------------- 4523 * Local variables: 4524 * c-basic-offset: 8 4525 * tab-width: 8 4526 * End: 4527 */ 4528