ipr.c revision 94be9a58d7e683ac3c1df1858a17f09ebade8da0
1/* 2 * ipr.c -- driver for IBM Power Linux RAID adapters 3 * 4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation 5 * 6 * Copyright (C) 2003, 2004 IBM Corporation 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24/* 25 * Notes: 26 * 27 * This driver is used to control the following SCSI adapters: 28 * 29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B 30 * 31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter 32 * PCI-X Dual Channel Ultra 320 SCSI Adapter 33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card 34 * Embedded SCSI adapter on p615 and p655 systems 35 * 36 * Supported Hardware Features: 37 * - Ultra 320 SCSI controller 38 * - PCI-X host interface 39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine 40 * - Non-Volatile Write Cache 41 * - Supports attachment of non-RAID disks, tape, and optical devices 42 * - RAID Levels 0, 5, 10 43 * - Hot spare 44 * - Background Parity Checking 45 * - Background Data Scrubbing 46 * - Ability to increase the capacity of an existing RAID 5 disk array 47 * by adding disks 48 * 49 * Driver Features: 50 * - Tagged command queuing 51 * - Adapter microcode download 52 * - PCI hot plug 53 * - SCSI device hot plug 54 * 55 */ 56 57#include <linux/fs.h> 58#include <linux/init.h> 59#include <linux/types.h> 60#include <linux/errno.h> 61#include <linux/kernel.h> 62#include <linux/ioport.h> 63#include <linux/delay.h> 64#include <linux/pci.h> 65#include <linux/wait.h> 66#include <linux/spinlock.h> 67#include <linux/sched.h> 68#include <linux/interrupt.h> 69#include <linux/blkdev.h> 70#include <linux/firmware.h> 71#include <linux/module.h> 72#include <linux/moduleparam.h> 73#include <linux/libata.h> 74#include <linux/hdreg.h> 75#include <asm/io.h> 76#include <asm/irq.h> 77#include <asm/processor.h> 78#include <scsi/scsi.h> 79#include <scsi/scsi_host.h> 80#include <scsi/scsi_tcq.h> 81#include <scsi/scsi_eh.h> 82#include <scsi/scsi_cmnd.h> 83#include "ipr.h" 84 85/* 86 * Global Data 87 */ 88static LIST_HEAD(ipr_ioa_head); 89static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 90static unsigned int ipr_max_speed = 1; 91static int ipr_testmode = 0; 92static unsigned int ipr_fastfail = 0; 93static unsigned int ipr_transop_timeout = 0; 94static unsigned int ipr_enable_cache = 1; 95static unsigned int ipr_debug = 0; 96static unsigned int ipr_dual_ioa_raid = 1; 97static DEFINE_SPINLOCK(ipr_driver_lock); 98 99/* This table describes the differences between DMA controller chips */ 100static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { 101 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ 102 .mailbox = 0x0042C, 103 .cache_line_size = 0x20, 104 { 105 .set_interrupt_mask_reg = 0x0022C, 106 .clr_interrupt_mask_reg = 0x00230, 107 .sense_interrupt_mask_reg = 0x0022C, 108 .clr_interrupt_reg = 0x00228, 109 .sense_interrupt_reg = 0x00224, 110 .ioarrin_reg = 0x00404, 111 .sense_uproc_interrupt_reg = 0x00214, 112 .set_uproc_interrupt_reg = 0x00214, 113 .clr_uproc_interrupt_reg = 0x00218 114 } 115 }, 116 { /* Snipe and Scamp */ 117 .mailbox = 0x0052C, 118 .cache_line_size = 0x20, 119 { 120 .set_interrupt_mask_reg = 0x00288, 121 .clr_interrupt_mask_reg = 0x0028C, 122 .sense_interrupt_mask_reg = 0x00288, 123 .clr_interrupt_reg = 0x00284, 124 .sense_interrupt_reg = 0x00280, 125 .ioarrin_reg = 0x00504, 126 .sense_uproc_interrupt_reg = 0x00290, 127 .set_uproc_interrupt_reg = 0x00290, 128 .clr_uproc_interrupt_reg = 0x00294 129 } 130 }, 131}; 132 133static const struct ipr_chip_t ipr_chip[] = { 134 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] }, 135 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] }, 136 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] }, 137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] }, 138 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] }, 139 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, 140 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } 141}; 142 143static int ipr_max_bus_speeds [] = { 144 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 145}; 146 147MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 148MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 149module_param_named(max_speed, ipr_max_speed, uint, 0); 150MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 151module_param_named(log_level, ipr_log_level, uint, 0); 152MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 153module_param_named(testmode, ipr_testmode, int, 0); 154MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 155module_param_named(fastfail, ipr_fastfail, int, 0); 156MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 157module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 158MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 159module_param_named(enable_cache, ipr_enable_cache, int, 0); 160MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); 161module_param_named(debug, ipr_debug, int, 0); 162MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 163module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 164MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 165MODULE_LICENSE("GPL"); 166MODULE_VERSION(IPR_DRIVER_VERSION); 167 168/* A constant array of IOASCs/URCs/Error Messages */ 169static const 170struct ipr_error_table_t ipr_error_table[] = { 171 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 172 "8155: An unknown error was received"}, 173 {0x00330000, 0, 0, 174 "Soft underlength error"}, 175 {0x005A0000, 0, 0, 176 "Command to be cancelled not found"}, 177 {0x00808000, 0, 0, 178 "Qualified success"}, 179 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 180 "FFFE: Soft device bus error recovered by the IOA"}, 181 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 182 "4101: Soft device bus fabric error"}, 183 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 184 "FFF9: Device sector reassign successful"}, 185 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 186 "FFF7: Media error recovered by device rewrite procedures"}, 187 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 188 "7001: IOA sector reassignment successful"}, 189 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 190 "FFF9: Soft media error. Sector reassignment recommended"}, 191 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 192 "FFF7: Media error recovered by IOA rewrite procedures"}, 193 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 194 "FF3D: Soft PCI bus error recovered by the IOA"}, 195 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 196 "FFF6: Device hardware error recovered by the IOA"}, 197 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 198 "FFF6: Device hardware error recovered by the device"}, 199 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 200 "FF3D: Soft IOA error recovered by the IOA"}, 201 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 202 "FFFA: Undefined device response recovered by the IOA"}, 203 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 204 "FFF6: Device bus error, message or command phase"}, 205 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 206 "FFFE: Task Management Function failed"}, 207 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 208 "FFF6: Failure prediction threshold exceeded"}, 209 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 210 "8009: Impending cache battery pack failure"}, 211 {0x02040400, 0, 0, 212 "34FF: Disk device format in progress"}, 213 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 214 "9070: IOA requested reset"}, 215 {0x023F0000, 0, 0, 216 "Synchronization required"}, 217 {0x024E0000, 0, 0, 218 "No ready, IOA shutdown"}, 219 {0x025A0000, 0, 0, 220 "Not ready, IOA has been shutdown"}, 221 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 222 "3020: Storage subsystem configuration error"}, 223 {0x03110B00, 0, 0, 224 "FFF5: Medium error, data unreadable, recommend reassign"}, 225 {0x03110C00, 0, 0, 226 "7000: Medium error, data unreadable, do not reassign"}, 227 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 228 "FFF3: Disk media format bad"}, 229 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 230 "3002: Addressed device failed to respond to selection"}, 231 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 232 "3100: Device bus error"}, 233 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 234 "3109: IOA timed out a device command"}, 235 {0x04088000, 0, 0, 236 "3120: SCSI bus is not operational"}, 237 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 238 "4100: Hard device bus fabric error"}, 239 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 240 "9000: IOA reserved area data check"}, 241 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 242 "9001: IOA reserved area invalid data pattern"}, 243 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 244 "9002: IOA reserved area LRC error"}, 245 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 246 "102E: Out of alternate sectors for disk storage"}, 247 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 248 "FFF4: Data transfer underlength error"}, 249 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 250 "FFF4: Data transfer overlength error"}, 251 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 252 "3400: Logical unit failure"}, 253 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 254 "FFF4: Device microcode is corrupt"}, 255 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 256 "8150: PCI bus error"}, 257 {0x04430000, 1, 0, 258 "Unsupported device bus message received"}, 259 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 260 "FFF4: Disk device problem"}, 261 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 262 "8150: Permanent IOA failure"}, 263 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 264 "3010: Disk device returned wrong response to IOA"}, 265 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 266 "8151: IOA microcode error"}, 267 {0x04448500, 0, 0, 268 "Device bus status error"}, 269 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 270 "8157: IOA error requiring IOA reset to recover"}, 271 {0x04448700, 0, 0, 272 "ATA device status error"}, 273 {0x04490000, 0, 0, 274 "Message reject received from the device"}, 275 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 276 "8008: A permanent cache battery pack failure occurred"}, 277 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 278 "9090: Disk unit has been modified after the last known status"}, 279 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 280 "9081: IOA detected device error"}, 281 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 282 "9082: IOA detected device error"}, 283 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 284 "3110: Device bus error, message or command phase"}, 285 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 286 "3110: SAS Command / Task Management Function failed"}, 287 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 288 "9091: Incorrect hardware configuration change has been detected"}, 289 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 290 "9073: Invalid multi-adapter configuration"}, 291 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 292 "4010: Incorrect connection between cascaded expanders"}, 293 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 294 "4020: Connections exceed IOA design limits"}, 295 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 296 "4030: Incorrect multipath connection"}, 297 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 298 "4110: Unsupported enclosure function"}, 299 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 300 "FFF4: Command to logical unit failed"}, 301 {0x05240000, 1, 0, 302 "Illegal request, invalid request type or request packet"}, 303 {0x05250000, 0, 0, 304 "Illegal request, invalid resource handle"}, 305 {0x05258000, 0, 0, 306 "Illegal request, commands not allowed to this device"}, 307 {0x05258100, 0, 0, 308 "Illegal request, command not allowed to a secondary adapter"}, 309 {0x05260000, 0, 0, 310 "Illegal request, invalid field in parameter list"}, 311 {0x05260100, 0, 0, 312 "Illegal request, parameter not supported"}, 313 {0x05260200, 0, 0, 314 "Illegal request, parameter value invalid"}, 315 {0x052C0000, 0, 0, 316 "Illegal request, command sequence error"}, 317 {0x052C8000, 1, 0, 318 "Illegal request, dual adapter support not enabled"}, 319 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 320 "9031: Array protection temporarily suspended, protection resuming"}, 321 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 322 "9040: Array protection temporarily suspended, protection resuming"}, 323 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 324 "3140: Device bus not ready to ready transition"}, 325 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 326 "FFFB: SCSI bus was reset"}, 327 {0x06290500, 0, 0, 328 "FFFE: SCSI bus transition to single ended"}, 329 {0x06290600, 0, 0, 330 "FFFE: SCSI bus transition to LVD"}, 331 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 332 "FFFB: SCSI bus was reset by another initiator"}, 333 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 334 "3029: A device replacement has occurred"}, 335 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 336 "9051: IOA cache data exists for a missing or failed device"}, 337 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 338 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 339 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 340 "9025: Disk unit is not supported at its physical location"}, 341 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 342 "3020: IOA detected a SCSI bus configuration error"}, 343 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 344 "3150: SCSI bus configuration error"}, 345 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 346 "9074: Asymmetric advanced function disk configuration"}, 347 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 348 "4040: Incomplete multipath connection between IOA and enclosure"}, 349 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 350 "4041: Incomplete multipath connection between enclosure and device"}, 351 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 352 "9075: Incomplete multipath connection between IOA and remote IOA"}, 353 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 354 "9076: Configuration error, missing remote IOA"}, 355 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 356 "4050: Enclosure does not support a required multipath function"}, 357 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 358 "9041: Array protection temporarily suspended"}, 359 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 360 "9042: Corrupt array parity detected on specified device"}, 361 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 362 "9030: Array no longer protected due to missing or failed disk unit"}, 363 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 364 "9071: Link operational transition"}, 365 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 366 "9072: Link not operational transition"}, 367 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 368 "9032: Array exposed but still protected"}, 369 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 370 "70DD: Device forced failed by disrupt device command"}, 371 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 372 "4061: Multipath redundancy level got better"}, 373 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 374 "4060: Multipath redundancy level got worse"}, 375 {0x07270000, 0, 0, 376 "Failure due to other device"}, 377 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 378 "9008: IOA does not support functions expected by devices"}, 379 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 380 "9010: Cache data associated with attached devices cannot be found"}, 381 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 382 "9011: Cache data belongs to devices other than those attached"}, 383 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 384 "9020: Array missing 2 or more devices with only 1 device present"}, 385 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 386 "9021: Array missing 2 or more devices with 2 or more devices present"}, 387 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 388 "9022: Exposed array is missing a required device"}, 389 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 390 "9023: Array member(s) not at required physical locations"}, 391 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 392 "9024: Array not functional due to present hardware configuration"}, 393 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 394 "9026: Array not functional due to present hardware configuration"}, 395 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 396 "9027: Array is missing a device and parity is out of sync"}, 397 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 398 "9028: Maximum number of arrays already exist"}, 399 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 400 "9050: Required cache data cannot be located for a disk unit"}, 401 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 402 "9052: Cache data exists for a device that has been modified"}, 403 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 404 "9054: IOA resources not available due to previous problems"}, 405 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 406 "9092: Disk unit requires initialization before use"}, 407 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 408 "9029: Incorrect hardware configuration change has been detected"}, 409 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 410 "9060: One or more disk pairs are missing from an array"}, 411 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 412 "9061: One or more disks are missing from an array"}, 413 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 414 "9062: One or more disks are missing from an array"}, 415 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 416 "9063: Maximum number of functional arrays has been exceeded"}, 417 {0x0B260000, 0, 0, 418 "Aborted command, invalid descriptor"}, 419 {0x0B5A0000, 0, 0, 420 "Command terminated by host"} 421}; 422 423static const struct ipr_ses_table_entry ipr_ses_table[] = { 424 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 425 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 426 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 427 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 428 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 429 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 430 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 431 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 432 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 433 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 434 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 435 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 436 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 437}; 438 439/* 440 * Function Prototypes 441 */ 442static int ipr_reset_alert(struct ipr_cmnd *); 443static void ipr_process_ccn(struct ipr_cmnd *); 444static void ipr_process_error(struct ipr_cmnd *); 445static void ipr_reset_ioa_job(struct ipr_cmnd *); 446static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 447 enum ipr_shutdown_type); 448 449#ifdef CONFIG_SCSI_IPR_TRACE 450/** 451 * ipr_trc_hook - Add a trace entry to the driver trace 452 * @ipr_cmd: ipr command struct 453 * @type: trace type 454 * @add_data: additional data 455 * 456 * Return value: 457 * none 458 **/ 459static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 460 u8 type, u32 add_data) 461{ 462 struct ipr_trace_entry *trace_entry; 463 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 464 465 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 466 trace_entry->time = jiffies; 467 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 468 trace_entry->type = type; 469 trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command; 470 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 471 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 472 trace_entry->u.add_data = add_data; 473} 474#else 475#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 476#endif 477 478/** 479 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 480 * @ipr_cmd: ipr command struct 481 * 482 * Return value: 483 * none 484 **/ 485static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 486{ 487 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 488 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 489 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); 490 491 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 492 ioarcb->write_data_transfer_length = 0; 493 ioarcb->read_data_transfer_length = 0; 494 ioarcb->write_ioadl_len = 0; 495 ioarcb->read_ioadl_len = 0; 496 ioarcb->write_ioadl_addr = 497 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 498 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 499 ioasa->ioasc = 0; 500 ioasa->residual_data_len = 0; 501 ioasa->u.gata.status = 0; 502 503 ipr_cmd->scsi_cmd = NULL; 504 ipr_cmd->qc = NULL; 505 ipr_cmd->sense_buffer[0] = 0; 506 ipr_cmd->dma_use_sg = 0; 507} 508 509/** 510 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 511 * @ipr_cmd: ipr command struct 512 * 513 * Return value: 514 * none 515 **/ 516static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 517{ 518 ipr_reinit_ipr_cmnd(ipr_cmd); 519 ipr_cmd->u.scratch = 0; 520 ipr_cmd->sibling = NULL; 521 init_timer(&ipr_cmd->timer); 522} 523 524/** 525 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 526 * @ioa_cfg: ioa config struct 527 * 528 * Return value: 529 * pointer to ipr command struct 530 **/ 531static 532struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 533{ 534 struct ipr_cmnd *ipr_cmd; 535 536 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 537 list_del(&ipr_cmd->queue); 538 ipr_init_ipr_cmnd(ipr_cmd); 539 540 return ipr_cmd; 541} 542 543/** 544 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 545 * @ioa_cfg: ioa config struct 546 * @clr_ints: interrupts to clear 547 * 548 * This function masks all interrupts on the adapter, then clears the 549 * interrupts specified in the mask 550 * 551 * Return value: 552 * none 553 **/ 554static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 555 u32 clr_ints) 556{ 557 volatile u32 int_reg; 558 559 /* Stop new interrupts */ 560 ioa_cfg->allow_interrupts = 0; 561 562 /* Set interrupt mask to stop all new interrupts */ 563 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 564 565 /* Clear any pending interrupts */ 566 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); 567 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 568} 569 570/** 571 * ipr_save_pcix_cmd_reg - Save PCI-X command register 572 * @ioa_cfg: ioa config struct 573 * 574 * Return value: 575 * 0 on success / -EIO on failure 576 **/ 577static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 578{ 579 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 580 581 if (pcix_cmd_reg == 0) 582 return 0; 583 584 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 585 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 586 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 587 return -EIO; 588 } 589 590 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 591 return 0; 592} 593 594/** 595 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 596 * @ioa_cfg: ioa config struct 597 * 598 * Return value: 599 * 0 on success / -EIO on failure 600 **/ 601static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 602{ 603 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 604 605 if (pcix_cmd_reg) { 606 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 607 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 608 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 609 return -EIO; 610 } 611 } 612 613 return 0; 614} 615 616/** 617 * ipr_sata_eh_done - done function for aborted SATA commands 618 * @ipr_cmd: ipr command struct 619 * 620 * This function is invoked for ops generated to SATA 621 * devices which are being aborted. 622 * 623 * Return value: 624 * none 625 **/ 626static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 627{ 628 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 629 struct ata_queued_cmd *qc = ipr_cmd->qc; 630 struct ipr_sata_port *sata_port = qc->ap->private_data; 631 632 qc->err_mask |= AC_ERR_OTHER; 633 sata_port->ioasa.status |= ATA_BUSY; 634 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 635 ata_qc_complete(qc); 636} 637 638/** 639 * ipr_scsi_eh_done - mid-layer done function for aborted ops 640 * @ipr_cmd: ipr command struct 641 * 642 * This function is invoked by the interrupt handler for 643 * ops generated by the SCSI mid-layer which are being aborted. 644 * 645 * Return value: 646 * none 647 **/ 648static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 649{ 650 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 651 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 652 653 scsi_cmd->result |= (DID_ERROR << 16); 654 655 scsi_dma_unmap(ipr_cmd->scsi_cmd); 656 scsi_cmd->scsi_done(scsi_cmd); 657 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 658} 659 660/** 661 * ipr_fail_all_ops - Fails all outstanding ops. 662 * @ioa_cfg: ioa config struct 663 * 664 * This function fails all outstanding ops. 665 * 666 * Return value: 667 * none 668 **/ 669static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 670{ 671 struct ipr_cmnd *ipr_cmd, *temp; 672 673 ENTER; 674 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 675 list_del(&ipr_cmd->queue); 676 677 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 678 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); 679 680 if (ipr_cmd->scsi_cmd) 681 ipr_cmd->done = ipr_scsi_eh_done; 682 else if (ipr_cmd->qc) 683 ipr_cmd->done = ipr_sata_eh_done; 684 685 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 686 del_timer(&ipr_cmd->timer); 687 ipr_cmd->done(ipr_cmd); 688 } 689 690 LEAVE; 691} 692 693/** 694 * ipr_do_req - Send driver initiated requests. 695 * @ipr_cmd: ipr command struct 696 * @done: done function 697 * @timeout_func: timeout function 698 * @timeout: timeout value 699 * 700 * This function sends the specified command to the adapter with the 701 * timeout given. The done function is invoked on command completion. 702 * 703 * Return value: 704 * none 705 **/ 706static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 707 void (*done) (struct ipr_cmnd *), 708 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 709{ 710 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 711 712 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 713 714 ipr_cmd->done = done; 715 716 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 717 ipr_cmd->timer.expires = jiffies + timeout; 718 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 719 720 add_timer(&ipr_cmd->timer); 721 722 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 723 724 mb(); 725 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 726 ioa_cfg->regs.ioarrin_reg); 727} 728 729/** 730 * ipr_internal_cmd_done - Op done function for an internally generated op. 731 * @ipr_cmd: ipr command struct 732 * 733 * This function is the op done function for an internally generated, 734 * blocking op. It simply wakes the sleeping thread. 735 * 736 * Return value: 737 * none 738 **/ 739static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 740{ 741 if (ipr_cmd->sibling) 742 ipr_cmd->sibling = NULL; 743 else 744 complete(&ipr_cmd->completion); 745} 746 747/** 748 * ipr_send_blocking_cmd - Send command and sleep on its completion. 749 * @ipr_cmd: ipr command struct 750 * @timeout_func: function to invoke if command times out 751 * @timeout: timeout 752 * 753 * Return value: 754 * none 755 **/ 756static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 757 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 758 u32 timeout) 759{ 760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 761 762 init_completion(&ipr_cmd->completion); 763 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 764 765 spin_unlock_irq(ioa_cfg->host->host_lock); 766 wait_for_completion(&ipr_cmd->completion); 767 spin_lock_irq(ioa_cfg->host->host_lock); 768} 769 770/** 771 * ipr_send_hcam - Send an HCAM to the adapter. 772 * @ioa_cfg: ioa config struct 773 * @type: HCAM type 774 * @hostrcb: hostrcb struct 775 * 776 * This function will send a Host Controlled Async command to the adapter. 777 * If HCAMs are currently not allowed to be issued to the adapter, it will 778 * place the hostrcb on the free queue. 779 * 780 * Return value: 781 * none 782 **/ 783static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 784 struct ipr_hostrcb *hostrcb) 785{ 786 struct ipr_cmnd *ipr_cmd; 787 struct ipr_ioarcb *ioarcb; 788 789 if (ioa_cfg->allow_cmds) { 790 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 791 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 792 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 793 794 ipr_cmd->u.hostrcb = hostrcb; 795 ioarcb = &ipr_cmd->ioarcb; 796 797 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 798 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 799 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 800 ioarcb->cmd_pkt.cdb[1] = type; 801 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 802 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 803 804 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); 805 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 806 ipr_cmd->ioadl[0].flags_and_data_len = 807 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); 808 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); 809 810 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 811 ipr_cmd->done = ipr_process_ccn; 812 else 813 ipr_cmd->done = ipr_process_error; 814 815 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 816 817 mb(); 818 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 819 ioa_cfg->regs.ioarrin_reg); 820 } else { 821 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 822 } 823} 824 825/** 826 * ipr_init_res_entry - Initialize a resource entry struct. 827 * @res: resource entry struct 828 * 829 * Return value: 830 * none 831 **/ 832static void ipr_init_res_entry(struct ipr_resource_entry *res) 833{ 834 res->needs_sync_complete = 0; 835 res->in_erp = 0; 836 res->add_to_ml = 0; 837 res->del_from_ml = 0; 838 res->resetting_device = 0; 839 res->sdev = NULL; 840 res->sata_port = NULL; 841} 842 843/** 844 * ipr_handle_config_change - Handle a config change from the adapter 845 * @ioa_cfg: ioa config struct 846 * @hostrcb: hostrcb 847 * 848 * Return value: 849 * none 850 **/ 851static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 852 struct ipr_hostrcb *hostrcb) 853{ 854 struct ipr_resource_entry *res = NULL; 855 struct ipr_config_table_entry *cfgte; 856 u32 is_ndn = 1; 857 858 cfgte = &hostrcb->hcam.u.ccn.cfgte; 859 860 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 861 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, 862 sizeof(cfgte->res_addr))) { 863 is_ndn = 0; 864 break; 865 } 866 } 867 868 if (is_ndn) { 869 if (list_empty(&ioa_cfg->free_res_q)) { 870 ipr_send_hcam(ioa_cfg, 871 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 872 hostrcb); 873 return; 874 } 875 876 res = list_entry(ioa_cfg->free_res_q.next, 877 struct ipr_resource_entry, queue); 878 879 list_del(&res->queue); 880 ipr_init_res_entry(res); 881 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 882 } 883 884 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 885 886 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 887 if (res->sdev) { 888 res->del_from_ml = 1; 889 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 890 if (ioa_cfg->allow_ml_add_del) 891 schedule_work(&ioa_cfg->work_q); 892 } else 893 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 894 } else if (!res->sdev) { 895 res->add_to_ml = 1; 896 if (ioa_cfg->allow_ml_add_del) 897 schedule_work(&ioa_cfg->work_q); 898 } 899 900 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 901} 902 903/** 904 * ipr_process_ccn - Op done function for a CCN. 905 * @ipr_cmd: ipr command struct 906 * 907 * This function is the op done function for a configuration 908 * change notification host controlled async from the adapter. 909 * 910 * Return value: 911 * none 912 **/ 913static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 914{ 915 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 916 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 917 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 918 919 list_del(&hostrcb->queue); 920 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 921 922 if (ioasc) { 923 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 924 dev_err(&ioa_cfg->pdev->dev, 925 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 926 927 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 928 } else { 929 ipr_handle_config_change(ioa_cfg, hostrcb); 930 } 931} 932 933/** 934 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 935 * @i: index into buffer 936 * @buf: string to modify 937 * 938 * This function will strip all trailing whitespace, pad the end 939 * of the string with a single space, and NULL terminate the string. 940 * 941 * Return value: 942 * new length of string 943 **/ 944static int strip_and_pad_whitespace(int i, char *buf) 945{ 946 while (i && buf[i] == ' ') 947 i--; 948 buf[i+1] = ' '; 949 buf[i+2] = '\0'; 950 return i + 2; 951} 952 953/** 954 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 955 * @prefix: string to print at start of printk 956 * @hostrcb: hostrcb pointer 957 * @vpd: vendor/product id/sn struct 958 * 959 * Return value: 960 * none 961 **/ 962static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 963 struct ipr_vpd *vpd) 964{ 965 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 966 int i = 0; 967 968 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 969 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 970 971 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 972 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 973 974 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 975 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 976 977 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 978} 979 980/** 981 * ipr_log_vpd - Log the passed VPD to the error log. 982 * @vpd: vendor/product id/sn struct 983 * 984 * Return value: 985 * none 986 **/ 987static void ipr_log_vpd(struct ipr_vpd *vpd) 988{ 989 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 990 + IPR_SERIAL_NUM_LEN]; 991 992 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 993 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 994 IPR_PROD_ID_LEN); 995 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 996 ipr_err("Vendor/Product ID: %s\n", buffer); 997 998 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 999 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1000 ipr_err(" Serial Number: %s\n", buffer); 1001} 1002 1003/** 1004 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1005 * @prefix: string to print at start of printk 1006 * @hostrcb: hostrcb pointer 1007 * @vpd: vendor/product id/sn/wwn struct 1008 * 1009 * Return value: 1010 * none 1011 **/ 1012static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1013 struct ipr_ext_vpd *vpd) 1014{ 1015 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1016 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1017 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1018} 1019 1020/** 1021 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1022 * @vpd: vendor/product id/sn/wwn struct 1023 * 1024 * Return value: 1025 * none 1026 **/ 1027static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1028{ 1029 ipr_log_vpd(&vpd->vpd); 1030 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1031 be32_to_cpu(vpd->wwid[1])); 1032} 1033 1034/** 1035 * ipr_log_enhanced_cache_error - Log a cache error. 1036 * @ioa_cfg: ioa config struct 1037 * @hostrcb: hostrcb struct 1038 * 1039 * Return value: 1040 * none 1041 **/ 1042static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1043 struct ipr_hostrcb *hostrcb) 1044{ 1045 struct ipr_hostrcb_type_12_error *error = 1046 &hostrcb->hcam.u.error.u.type_12_error; 1047 1048 ipr_err("-----Current Configuration-----\n"); 1049 ipr_err("Cache Directory Card Information:\n"); 1050 ipr_log_ext_vpd(&error->ioa_vpd); 1051 ipr_err("Adapter Card Information:\n"); 1052 ipr_log_ext_vpd(&error->cfc_vpd); 1053 1054 ipr_err("-----Expected Configuration-----\n"); 1055 ipr_err("Cache Directory Card Information:\n"); 1056 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1057 ipr_err("Adapter Card Information:\n"); 1058 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1059 1060 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1061 be32_to_cpu(error->ioa_data[0]), 1062 be32_to_cpu(error->ioa_data[1]), 1063 be32_to_cpu(error->ioa_data[2])); 1064} 1065 1066/** 1067 * ipr_log_cache_error - Log a cache error. 1068 * @ioa_cfg: ioa config struct 1069 * @hostrcb: hostrcb struct 1070 * 1071 * Return value: 1072 * none 1073 **/ 1074static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1075 struct ipr_hostrcb *hostrcb) 1076{ 1077 struct ipr_hostrcb_type_02_error *error = 1078 &hostrcb->hcam.u.error.u.type_02_error; 1079 1080 ipr_err("-----Current Configuration-----\n"); 1081 ipr_err("Cache Directory Card Information:\n"); 1082 ipr_log_vpd(&error->ioa_vpd); 1083 ipr_err("Adapter Card Information:\n"); 1084 ipr_log_vpd(&error->cfc_vpd); 1085 1086 ipr_err("-----Expected Configuration-----\n"); 1087 ipr_err("Cache Directory Card Information:\n"); 1088 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1089 ipr_err("Adapter Card Information:\n"); 1090 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1091 1092 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1093 be32_to_cpu(error->ioa_data[0]), 1094 be32_to_cpu(error->ioa_data[1]), 1095 be32_to_cpu(error->ioa_data[2])); 1096} 1097 1098/** 1099 * ipr_log_enhanced_config_error - Log a configuration error. 1100 * @ioa_cfg: ioa config struct 1101 * @hostrcb: hostrcb struct 1102 * 1103 * Return value: 1104 * none 1105 **/ 1106static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1107 struct ipr_hostrcb *hostrcb) 1108{ 1109 int errors_logged, i; 1110 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1111 struct ipr_hostrcb_type_13_error *error; 1112 1113 error = &hostrcb->hcam.u.error.u.type_13_error; 1114 errors_logged = be32_to_cpu(error->errors_logged); 1115 1116 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1117 be32_to_cpu(error->errors_detected), errors_logged); 1118 1119 dev_entry = error->dev; 1120 1121 for (i = 0; i < errors_logged; i++, dev_entry++) { 1122 ipr_err_separator; 1123 1124 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1125 ipr_log_ext_vpd(&dev_entry->vpd); 1126 1127 ipr_err("-----New Device Information-----\n"); 1128 ipr_log_ext_vpd(&dev_entry->new_vpd); 1129 1130 ipr_err("Cache Directory Card Information:\n"); 1131 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1132 1133 ipr_err("Adapter Card Information:\n"); 1134 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1135 } 1136} 1137 1138/** 1139 * ipr_log_config_error - Log a configuration error. 1140 * @ioa_cfg: ioa config struct 1141 * @hostrcb: hostrcb struct 1142 * 1143 * Return value: 1144 * none 1145 **/ 1146static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1147 struct ipr_hostrcb *hostrcb) 1148{ 1149 int errors_logged, i; 1150 struct ipr_hostrcb_device_data_entry *dev_entry; 1151 struct ipr_hostrcb_type_03_error *error; 1152 1153 error = &hostrcb->hcam.u.error.u.type_03_error; 1154 errors_logged = be32_to_cpu(error->errors_logged); 1155 1156 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1157 be32_to_cpu(error->errors_detected), errors_logged); 1158 1159 dev_entry = error->dev; 1160 1161 for (i = 0; i < errors_logged; i++, dev_entry++) { 1162 ipr_err_separator; 1163 1164 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1165 ipr_log_vpd(&dev_entry->vpd); 1166 1167 ipr_err("-----New Device Information-----\n"); 1168 ipr_log_vpd(&dev_entry->new_vpd); 1169 1170 ipr_err("Cache Directory Card Information:\n"); 1171 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1172 1173 ipr_err("Adapter Card Information:\n"); 1174 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1175 1176 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1177 be32_to_cpu(dev_entry->ioa_data[0]), 1178 be32_to_cpu(dev_entry->ioa_data[1]), 1179 be32_to_cpu(dev_entry->ioa_data[2]), 1180 be32_to_cpu(dev_entry->ioa_data[3]), 1181 be32_to_cpu(dev_entry->ioa_data[4])); 1182 } 1183} 1184 1185/** 1186 * ipr_log_enhanced_array_error - Log an array configuration error. 1187 * @ioa_cfg: ioa config struct 1188 * @hostrcb: hostrcb struct 1189 * 1190 * Return value: 1191 * none 1192 **/ 1193static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1194 struct ipr_hostrcb *hostrcb) 1195{ 1196 int i, num_entries; 1197 struct ipr_hostrcb_type_14_error *error; 1198 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1199 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1200 1201 error = &hostrcb->hcam.u.error.u.type_14_error; 1202 1203 ipr_err_separator; 1204 1205 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1206 error->protection_level, 1207 ioa_cfg->host->host_no, 1208 error->last_func_vset_res_addr.bus, 1209 error->last_func_vset_res_addr.target, 1210 error->last_func_vset_res_addr.lun); 1211 1212 ipr_err_separator; 1213 1214 array_entry = error->array_member; 1215 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1216 sizeof(error->array_member)); 1217 1218 for (i = 0; i < num_entries; i++, array_entry++) { 1219 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1220 continue; 1221 1222 if (be32_to_cpu(error->exposed_mode_adn) == i) 1223 ipr_err("Exposed Array Member %d:\n", i); 1224 else 1225 ipr_err("Array Member %d:\n", i); 1226 1227 ipr_log_ext_vpd(&array_entry->vpd); 1228 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1229 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1230 "Expected Location"); 1231 1232 ipr_err_separator; 1233 } 1234} 1235 1236/** 1237 * ipr_log_array_error - Log an array configuration error. 1238 * @ioa_cfg: ioa config struct 1239 * @hostrcb: hostrcb struct 1240 * 1241 * Return value: 1242 * none 1243 **/ 1244static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1245 struct ipr_hostrcb *hostrcb) 1246{ 1247 int i; 1248 struct ipr_hostrcb_type_04_error *error; 1249 struct ipr_hostrcb_array_data_entry *array_entry; 1250 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1251 1252 error = &hostrcb->hcam.u.error.u.type_04_error; 1253 1254 ipr_err_separator; 1255 1256 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1257 error->protection_level, 1258 ioa_cfg->host->host_no, 1259 error->last_func_vset_res_addr.bus, 1260 error->last_func_vset_res_addr.target, 1261 error->last_func_vset_res_addr.lun); 1262 1263 ipr_err_separator; 1264 1265 array_entry = error->array_member; 1266 1267 for (i = 0; i < 18; i++) { 1268 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1269 continue; 1270 1271 if (be32_to_cpu(error->exposed_mode_adn) == i) 1272 ipr_err("Exposed Array Member %d:\n", i); 1273 else 1274 ipr_err("Array Member %d:\n", i); 1275 1276 ipr_log_vpd(&array_entry->vpd); 1277 1278 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1279 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1280 "Expected Location"); 1281 1282 ipr_err_separator; 1283 1284 if (i == 9) 1285 array_entry = error->array_member2; 1286 else 1287 array_entry++; 1288 } 1289} 1290 1291/** 1292 * ipr_log_hex_data - Log additional hex IOA error data. 1293 * @ioa_cfg: ioa config struct 1294 * @data: IOA error data 1295 * @len: data length 1296 * 1297 * Return value: 1298 * none 1299 **/ 1300static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1301{ 1302 int i; 1303 1304 if (len == 0) 1305 return; 1306 1307 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1308 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1309 1310 for (i = 0; i < len / 4; i += 4) { 1311 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1312 be32_to_cpu(data[i]), 1313 be32_to_cpu(data[i+1]), 1314 be32_to_cpu(data[i+2]), 1315 be32_to_cpu(data[i+3])); 1316 } 1317} 1318 1319/** 1320 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1321 * @ioa_cfg: ioa config struct 1322 * @hostrcb: hostrcb struct 1323 * 1324 * Return value: 1325 * none 1326 **/ 1327static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1328 struct ipr_hostrcb *hostrcb) 1329{ 1330 struct ipr_hostrcb_type_17_error *error; 1331 1332 error = &hostrcb->hcam.u.error.u.type_17_error; 1333 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1334 strstrip(error->failure_reason); 1335 1336 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1337 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1338 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1339 ipr_log_hex_data(ioa_cfg, error->data, 1340 be32_to_cpu(hostrcb->hcam.length) - 1341 (offsetof(struct ipr_hostrcb_error, u) + 1342 offsetof(struct ipr_hostrcb_type_17_error, data))); 1343} 1344 1345/** 1346 * ipr_log_dual_ioa_error - Log a dual adapter error. 1347 * @ioa_cfg: ioa config struct 1348 * @hostrcb: hostrcb struct 1349 * 1350 * Return value: 1351 * none 1352 **/ 1353static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1354 struct ipr_hostrcb *hostrcb) 1355{ 1356 struct ipr_hostrcb_type_07_error *error; 1357 1358 error = &hostrcb->hcam.u.error.u.type_07_error; 1359 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1360 strstrip(error->failure_reason); 1361 1362 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1363 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1364 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1365 ipr_log_hex_data(ioa_cfg, error->data, 1366 be32_to_cpu(hostrcb->hcam.length) - 1367 (offsetof(struct ipr_hostrcb_error, u) + 1368 offsetof(struct ipr_hostrcb_type_07_error, data))); 1369} 1370 1371static const struct { 1372 u8 active; 1373 char *desc; 1374} path_active_desc[] = { 1375 { IPR_PATH_NO_INFO, "Path" }, 1376 { IPR_PATH_ACTIVE, "Active path" }, 1377 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1378}; 1379 1380static const struct { 1381 u8 state; 1382 char *desc; 1383} path_state_desc[] = { 1384 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1385 { IPR_PATH_HEALTHY, "is healthy" }, 1386 { IPR_PATH_DEGRADED, "is degraded" }, 1387 { IPR_PATH_FAILED, "is failed" } 1388}; 1389 1390/** 1391 * ipr_log_fabric_path - Log a fabric path error 1392 * @hostrcb: hostrcb struct 1393 * @fabric: fabric descriptor 1394 * 1395 * Return value: 1396 * none 1397 **/ 1398static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1399 struct ipr_hostrcb_fabric_desc *fabric) 1400{ 1401 int i, j; 1402 u8 path_state = fabric->path_state; 1403 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1404 u8 state = path_state & IPR_PATH_STATE_MASK; 1405 1406 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1407 if (path_active_desc[i].active != active) 1408 continue; 1409 1410 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1411 if (path_state_desc[j].state != state) 1412 continue; 1413 1414 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1415 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1416 path_active_desc[i].desc, path_state_desc[j].desc, 1417 fabric->ioa_port); 1418 } else if (fabric->cascaded_expander == 0xff) { 1419 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1420 path_active_desc[i].desc, path_state_desc[j].desc, 1421 fabric->ioa_port, fabric->phy); 1422 } else if (fabric->phy == 0xff) { 1423 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1424 path_active_desc[i].desc, path_state_desc[j].desc, 1425 fabric->ioa_port, fabric->cascaded_expander); 1426 } else { 1427 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1428 path_active_desc[i].desc, path_state_desc[j].desc, 1429 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1430 } 1431 return; 1432 } 1433 } 1434 1435 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1436 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1437} 1438 1439static const struct { 1440 u8 type; 1441 char *desc; 1442} path_type_desc[] = { 1443 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1444 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1445 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1446 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1447}; 1448 1449static const struct { 1450 u8 status; 1451 char *desc; 1452} path_status_desc[] = { 1453 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1454 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1455 { IPR_PATH_CFG_FAILED, "Failed" }, 1456 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1457 { IPR_PATH_NOT_DETECTED, "Missing" }, 1458 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1459}; 1460 1461static const char *link_rate[] = { 1462 "unknown", 1463 "disabled", 1464 "phy reset problem", 1465 "spinup hold", 1466 "port selector", 1467 "unknown", 1468 "unknown", 1469 "unknown", 1470 "1.5Gbps", 1471 "3.0Gbps", 1472 "unknown", 1473 "unknown", 1474 "unknown", 1475 "unknown", 1476 "unknown", 1477 "unknown" 1478}; 1479 1480/** 1481 * ipr_log_path_elem - Log a fabric path element. 1482 * @hostrcb: hostrcb struct 1483 * @cfg: fabric path element struct 1484 * 1485 * Return value: 1486 * none 1487 **/ 1488static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1489 struct ipr_hostrcb_config_element *cfg) 1490{ 1491 int i, j; 1492 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1493 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1494 1495 if (type == IPR_PATH_CFG_NOT_EXIST) 1496 return; 1497 1498 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1499 if (path_type_desc[i].type != type) 1500 continue; 1501 1502 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 1503 if (path_status_desc[j].status != status) 1504 continue; 1505 1506 if (type == IPR_PATH_CFG_IOA_PORT) { 1507 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 1508 path_status_desc[j].desc, path_type_desc[i].desc, 1509 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1510 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1511 } else { 1512 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 1513 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 1514 path_status_desc[j].desc, path_type_desc[i].desc, 1515 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1516 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1517 } else if (cfg->cascaded_expander == 0xff) { 1518 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 1519 "WWN=%08X%08X\n", path_status_desc[j].desc, 1520 path_type_desc[i].desc, cfg->phy, 1521 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1522 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1523 } else if (cfg->phy == 0xff) { 1524 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 1525 "WWN=%08X%08X\n", path_status_desc[j].desc, 1526 path_type_desc[i].desc, cfg->cascaded_expander, 1527 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1528 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1529 } else { 1530 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 1531 "WWN=%08X%08X\n", path_status_desc[j].desc, 1532 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 1533 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1534 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1535 } 1536 } 1537 return; 1538 } 1539 } 1540 1541 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 1542 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 1543 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1544 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1545} 1546 1547/** 1548 * ipr_log_fabric_error - Log a fabric error. 1549 * @ioa_cfg: ioa config struct 1550 * @hostrcb: hostrcb struct 1551 * 1552 * Return value: 1553 * none 1554 **/ 1555static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 1556 struct ipr_hostrcb *hostrcb) 1557{ 1558 struct ipr_hostrcb_type_20_error *error; 1559 struct ipr_hostrcb_fabric_desc *fabric; 1560 struct ipr_hostrcb_config_element *cfg; 1561 int i, add_len; 1562 1563 error = &hostrcb->hcam.u.error.u.type_20_error; 1564 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1565 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 1566 1567 add_len = be32_to_cpu(hostrcb->hcam.length) - 1568 (offsetof(struct ipr_hostrcb_error, u) + 1569 offsetof(struct ipr_hostrcb_type_20_error, desc)); 1570 1571 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 1572 ipr_log_fabric_path(hostrcb, fabric); 1573 for_each_fabric_cfg(fabric, cfg) 1574 ipr_log_path_elem(hostrcb, cfg); 1575 1576 add_len -= be16_to_cpu(fabric->length); 1577 fabric = (struct ipr_hostrcb_fabric_desc *) 1578 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 1579 } 1580 1581 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 1582} 1583 1584/** 1585 * ipr_log_generic_error - Log an adapter error. 1586 * @ioa_cfg: ioa config struct 1587 * @hostrcb: hostrcb struct 1588 * 1589 * Return value: 1590 * none 1591 **/ 1592static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 1593 struct ipr_hostrcb *hostrcb) 1594{ 1595 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 1596 be32_to_cpu(hostrcb->hcam.length)); 1597} 1598 1599/** 1600 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 1601 * @ioasc: IOASC 1602 * 1603 * This function will return the index of into the ipr_error_table 1604 * for the specified IOASC. If the IOASC is not in the table, 1605 * 0 will be returned, which points to the entry used for unknown errors. 1606 * 1607 * Return value: 1608 * index into the ipr_error_table 1609 **/ 1610static u32 ipr_get_error(u32 ioasc) 1611{ 1612 int i; 1613 1614 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 1615 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 1616 return i; 1617 1618 return 0; 1619} 1620 1621/** 1622 * ipr_handle_log_data - Log an adapter error. 1623 * @ioa_cfg: ioa config struct 1624 * @hostrcb: hostrcb struct 1625 * 1626 * This function logs an adapter error to the system. 1627 * 1628 * Return value: 1629 * none 1630 **/ 1631static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 1632 struct ipr_hostrcb *hostrcb) 1633{ 1634 u32 ioasc; 1635 int error_index; 1636 1637 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 1638 return; 1639 1640 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 1641 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 1642 1643 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 1644 1645 if (ioasc == IPR_IOASC_BUS_WAS_RESET || 1646 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { 1647 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 1648 scsi_report_bus_reset(ioa_cfg->host, 1649 hostrcb->hcam.u.error.failing_dev_res_addr.bus); 1650 } 1651 1652 error_index = ipr_get_error(ioasc); 1653 1654 if (!ipr_error_table[error_index].log_hcam) 1655 return; 1656 1657 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 1658 1659 /* Set indication we have logged an error */ 1660 ioa_cfg->errors_logged++; 1661 1662 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 1663 return; 1664 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 1665 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 1666 1667 switch (hostrcb->hcam.overlay_id) { 1668 case IPR_HOST_RCB_OVERLAY_ID_2: 1669 ipr_log_cache_error(ioa_cfg, hostrcb); 1670 break; 1671 case IPR_HOST_RCB_OVERLAY_ID_3: 1672 ipr_log_config_error(ioa_cfg, hostrcb); 1673 break; 1674 case IPR_HOST_RCB_OVERLAY_ID_4: 1675 case IPR_HOST_RCB_OVERLAY_ID_6: 1676 ipr_log_array_error(ioa_cfg, hostrcb); 1677 break; 1678 case IPR_HOST_RCB_OVERLAY_ID_7: 1679 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 1680 break; 1681 case IPR_HOST_RCB_OVERLAY_ID_12: 1682 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 1683 break; 1684 case IPR_HOST_RCB_OVERLAY_ID_13: 1685 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 1686 break; 1687 case IPR_HOST_RCB_OVERLAY_ID_14: 1688 case IPR_HOST_RCB_OVERLAY_ID_16: 1689 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 1690 break; 1691 case IPR_HOST_RCB_OVERLAY_ID_17: 1692 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 1693 break; 1694 case IPR_HOST_RCB_OVERLAY_ID_20: 1695 ipr_log_fabric_error(ioa_cfg, hostrcb); 1696 break; 1697 case IPR_HOST_RCB_OVERLAY_ID_1: 1698 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 1699 default: 1700 ipr_log_generic_error(ioa_cfg, hostrcb); 1701 break; 1702 } 1703} 1704 1705/** 1706 * ipr_process_error - Op done function for an adapter error log. 1707 * @ipr_cmd: ipr command struct 1708 * 1709 * This function is the op done function for an error log host 1710 * controlled async from the adapter. It will log the error and 1711 * send the HCAM back to the adapter. 1712 * 1713 * Return value: 1714 * none 1715 **/ 1716static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 1717{ 1718 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1719 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1720 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 1721 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 1722 1723 list_del(&hostrcb->queue); 1724 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1725 1726 if (!ioasc) { 1727 ipr_handle_log_data(ioa_cfg, hostrcb); 1728 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 1729 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 1730 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 1731 dev_err(&ioa_cfg->pdev->dev, 1732 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1733 } 1734 1735 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 1736} 1737 1738/** 1739 * ipr_timeout - An internally generated op has timed out. 1740 * @ipr_cmd: ipr command struct 1741 * 1742 * This function blocks host requests and initiates an 1743 * adapter reset. 1744 * 1745 * Return value: 1746 * none 1747 **/ 1748static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 1749{ 1750 unsigned long lock_flags = 0; 1751 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1752 1753 ENTER; 1754 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 1755 1756 ioa_cfg->errors_logged++; 1757 dev_err(&ioa_cfg->pdev->dev, 1758 "Adapter being reset due to command timeout.\n"); 1759 1760 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 1761 ioa_cfg->sdt_state = GET_DUMP; 1762 1763 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 1764 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 1765 1766 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 1767 LEAVE; 1768} 1769 1770/** 1771 * ipr_oper_timeout - Adapter timed out transitioning to operational 1772 * @ipr_cmd: ipr command struct 1773 * 1774 * This function blocks host requests and initiates an 1775 * adapter reset. 1776 * 1777 * Return value: 1778 * none 1779 **/ 1780static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 1781{ 1782 unsigned long lock_flags = 0; 1783 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1784 1785 ENTER; 1786 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 1787 1788 ioa_cfg->errors_logged++; 1789 dev_err(&ioa_cfg->pdev->dev, 1790 "Adapter timed out transitioning to operational.\n"); 1791 1792 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 1793 ioa_cfg->sdt_state = GET_DUMP; 1794 1795 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 1796 if (ipr_fastfail) 1797 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 1798 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 1799 } 1800 1801 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 1802 LEAVE; 1803} 1804 1805/** 1806 * ipr_reset_reload - Reset/Reload the IOA 1807 * @ioa_cfg: ioa config struct 1808 * @shutdown_type: shutdown type 1809 * 1810 * This function resets the adapter and re-initializes it. 1811 * This function assumes that all new host commands have been stopped. 1812 * Return value: 1813 * SUCCESS / FAILED 1814 **/ 1815static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 1816 enum ipr_shutdown_type shutdown_type) 1817{ 1818 if (!ioa_cfg->in_reset_reload) 1819 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 1820 1821 spin_unlock_irq(ioa_cfg->host->host_lock); 1822 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 1823 spin_lock_irq(ioa_cfg->host->host_lock); 1824 1825 /* If we got hit with a host reset while we were already resetting 1826 the adapter for some reason, and the reset failed. */ 1827 if (ioa_cfg->ioa_is_dead) { 1828 ipr_trace; 1829 return FAILED; 1830 } 1831 1832 return SUCCESS; 1833} 1834 1835/** 1836 * ipr_find_ses_entry - Find matching SES in SES table 1837 * @res: resource entry struct of SES 1838 * 1839 * Return value: 1840 * pointer to SES table entry / NULL on failure 1841 **/ 1842static const struct ipr_ses_table_entry * 1843ipr_find_ses_entry(struct ipr_resource_entry *res) 1844{ 1845 int i, j, matches; 1846 const struct ipr_ses_table_entry *ste = ipr_ses_table; 1847 1848 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 1849 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 1850 if (ste->compare_product_id_byte[j] == 'X') { 1851 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) 1852 matches++; 1853 else 1854 break; 1855 } else 1856 matches++; 1857 } 1858 1859 if (matches == IPR_PROD_ID_LEN) 1860 return ste; 1861 } 1862 1863 return NULL; 1864} 1865 1866/** 1867 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 1868 * @ioa_cfg: ioa config struct 1869 * @bus: SCSI bus 1870 * @bus_width: bus width 1871 * 1872 * Return value: 1873 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 1874 * For a 2-byte wide SCSI bus, the maximum transfer speed is 1875 * twice the maximum transfer rate (e.g. for a wide enabled bus, 1876 * max 160MHz = max 320MB/sec). 1877 **/ 1878static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 1879{ 1880 struct ipr_resource_entry *res; 1881 const struct ipr_ses_table_entry *ste; 1882 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 1883 1884 /* Loop through each config table entry in the config table buffer */ 1885 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1886 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) 1887 continue; 1888 1889 if (bus != res->cfgte.res_addr.bus) 1890 continue; 1891 1892 if (!(ste = ipr_find_ses_entry(res))) 1893 continue; 1894 1895 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 1896 } 1897 1898 return max_xfer_rate; 1899} 1900 1901/** 1902 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 1903 * @ioa_cfg: ioa config struct 1904 * @max_delay: max delay in micro-seconds to wait 1905 * 1906 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 1907 * 1908 * Return value: 1909 * 0 on success / other on failure 1910 **/ 1911static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 1912{ 1913 volatile u32 pcii_reg; 1914 int delay = 1; 1915 1916 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 1917 while (delay < max_delay) { 1918 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 1919 1920 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 1921 return 0; 1922 1923 /* udelay cannot be used if delay is more than a few milliseconds */ 1924 if ((delay / 1000) > MAX_UDELAY_MS) 1925 mdelay(delay / 1000); 1926 else 1927 udelay(delay); 1928 1929 delay += delay; 1930 } 1931 return -EIO; 1932} 1933 1934/** 1935 * ipr_get_ldump_data_section - Dump IOA memory 1936 * @ioa_cfg: ioa config struct 1937 * @start_addr: adapter address to dump 1938 * @dest: destination kernel buffer 1939 * @length_in_words: length to dump in 4 byte words 1940 * 1941 * Return value: 1942 * 0 on success / -EIO on failure 1943 **/ 1944static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 1945 u32 start_addr, 1946 __be32 *dest, u32 length_in_words) 1947{ 1948 volatile u32 temp_pcii_reg; 1949 int i, delay = 0; 1950 1951 /* Write IOA interrupt reg starting LDUMP state */ 1952 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 1953 ioa_cfg->regs.set_uproc_interrupt_reg); 1954 1955 /* Wait for IO debug acknowledge */ 1956 if (ipr_wait_iodbg_ack(ioa_cfg, 1957 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 1958 dev_err(&ioa_cfg->pdev->dev, 1959 "IOA dump long data transfer timeout\n"); 1960 return -EIO; 1961 } 1962 1963 /* Signal LDUMP interlocked - clear IO debug ack */ 1964 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 1965 ioa_cfg->regs.clr_interrupt_reg); 1966 1967 /* Write Mailbox with starting address */ 1968 writel(start_addr, ioa_cfg->ioa_mailbox); 1969 1970 /* Signal address valid - clear IOA Reset alert */ 1971 writel(IPR_UPROCI_RESET_ALERT, 1972 ioa_cfg->regs.clr_uproc_interrupt_reg); 1973 1974 for (i = 0; i < length_in_words; i++) { 1975 /* Wait for IO debug acknowledge */ 1976 if (ipr_wait_iodbg_ack(ioa_cfg, 1977 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 1978 dev_err(&ioa_cfg->pdev->dev, 1979 "IOA dump short data transfer timeout\n"); 1980 return -EIO; 1981 } 1982 1983 /* Read data from mailbox and increment destination pointer */ 1984 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 1985 dest++; 1986 1987 /* For all but the last word of data, signal data received */ 1988 if (i < (length_in_words - 1)) { 1989 /* Signal dump data received - Clear IO debug Ack */ 1990 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 1991 ioa_cfg->regs.clr_interrupt_reg); 1992 } 1993 } 1994 1995 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 1996 writel(IPR_UPROCI_RESET_ALERT, 1997 ioa_cfg->regs.set_uproc_interrupt_reg); 1998 1999 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2000 ioa_cfg->regs.clr_uproc_interrupt_reg); 2001 2002 /* Signal dump data received - Clear IO debug Ack */ 2003 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2004 ioa_cfg->regs.clr_interrupt_reg); 2005 2006 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2007 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2008 temp_pcii_reg = 2009 readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 2010 2011 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2012 return 0; 2013 2014 udelay(10); 2015 delay += 10; 2016 } 2017 2018 return 0; 2019} 2020 2021#ifdef CONFIG_SCSI_IPR_DUMP 2022/** 2023 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2024 * @ioa_cfg: ioa config struct 2025 * @pci_address: adapter address 2026 * @length: length of data to copy 2027 * 2028 * Copy data from PCI adapter to kernel buffer. 2029 * Note: length MUST be a 4 byte multiple 2030 * Return value: 2031 * 0 on success / other on failure 2032 **/ 2033static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2034 unsigned long pci_address, u32 length) 2035{ 2036 int bytes_copied = 0; 2037 int cur_len, rc, rem_len, rem_page_len; 2038 __be32 *page; 2039 unsigned long lock_flags = 0; 2040 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2041 2042 while (bytes_copied < length && 2043 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2044 if (ioa_dump->page_offset >= PAGE_SIZE || 2045 ioa_dump->page_offset == 0) { 2046 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2047 2048 if (!page) { 2049 ipr_trace; 2050 return bytes_copied; 2051 } 2052 2053 ioa_dump->page_offset = 0; 2054 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2055 ioa_dump->next_page_index++; 2056 } else 2057 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2058 2059 rem_len = length - bytes_copied; 2060 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2061 cur_len = min(rem_len, rem_page_len); 2062 2063 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2064 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2065 rc = -EIO; 2066 } else { 2067 rc = ipr_get_ldump_data_section(ioa_cfg, 2068 pci_address + bytes_copied, 2069 &page[ioa_dump->page_offset / 4], 2070 (cur_len / sizeof(u32))); 2071 } 2072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2073 2074 if (!rc) { 2075 ioa_dump->page_offset += cur_len; 2076 bytes_copied += cur_len; 2077 } else { 2078 ipr_trace; 2079 break; 2080 } 2081 schedule(); 2082 } 2083 2084 return bytes_copied; 2085} 2086 2087/** 2088 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2089 * @hdr: dump entry header struct 2090 * 2091 * Return value: 2092 * nothing 2093 **/ 2094static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2095{ 2096 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2097 hdr->num_elems = 1; 2098 hdr->offset = sizeof(*hdr); 2099 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2100} 2101 2102/** 2103 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2104 * @ioa_cfg: ioa config struct 2105 * @driver_dump: driver dump struct 2106 * 2107 * Return value: 2108 * nothing 2109 **/ 2110static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2111 struct ipr_driver_dump *driver_dump) 2112{ 2113 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2114 2115 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2116 driver_dump->ioa_type_entry.hdr.len = 2117 sizeof(struct ipr_dump_ioa_type_entry) - 2118 sizeof(struct ipr_dump_entry_header); 2119 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2120 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2121 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2122 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2123 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2124 ucode_vpd->minor_release[1]; 2125 driver_dump->hdr.num_entries++; 2126} 2127 2128/** 2129 * ipr_dump_version_data - Fill in the driver version in the dump. 2130 * @ioa_cfg: ioa config struct 2131 * @driver_dump: driver dump struct 2132 * 2133 * Return value: 2134 * nothing 2135 **/ 2136static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2137 struct ipr_driver_dump *driver_dump) 2138{ 2139 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2140 driver_dump->version_entry.hdr.len = 2141 sizeof(struct ipr_dump_version_entry) - 2142 sizeof(struct ipr_dump_entry_header); 2143 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2144 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2145 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2146 driver_dump->hdr.num_entries++; 2147} 2148 2149/** 2150 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2151 * @ioa_cfg: ioa config struct 2152 * @driver_dump: driver dump struct 2153 * 2154 * Return value: 2155 * nothing 2156 **/ 2157static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2158 struct ipr_driver_dump *driver_dump) 2159{ 2160 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2161 driver_dump->trace_entry.hdr.len = 2162 sizeof(struct ipr_dump_trace_entry) - 2163 sizeof(struct ipr_dump_entry_header); 2164 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2165 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2166 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2167 driver_dump->hdr.num_entries++; 2168} 2169 2170/** 2171 * ipr_dump_location_data - Fill in the IOA location in the dump. 2172 * @ioa_cfg: ioa config struct 2173 * @driver_dump: driver dump struct 2174 * 2175 * Return value: 2176 * nothing 2177 **/ 2178static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2179 struct ipr_driver_dump *driver_dump) 2180{ 2181 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2182 driver_dump->location_entry.hdr.len = 2183 sizeof(struct ipr_dump_location_entry) - 2184 sizeof(struct ipr_dump_entry_header); 2185 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2186 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2187 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2188 driver_dump->hdr.num_entries++; 2189} 2190 2191/** 2192 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2193 * @ioa_cfg: ioa config struct 2194 * @dump: dump struct 2195 * 2196 * Return value: 2197 * nothing 2198 **/ 2199static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2200{ 2201 unsigned long start_addr, sdt_word; 2202 unsigned long lock_flags = 0; 2203 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2204 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2205 u32 num_entries, start_off, end_off; 2206 u32 bytes_to_copy, bytes_copied, rc; 2207 struct ipr_sdt *sdt; 2208 int i; 2209 2210 ENTER; 2211 2212 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2213 2214 if (ioa_cfg->sdt_state != GET_DUMP) { 2215 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2216 return; 2217 } 2218 2219 start_addr = readl(ioa_cfg->ioa_mailbox); 2220 2221 if (!ipr_sdt_is_fmt2(start_addr)) { 2222 dev_err(&ioa_cfg->pdev->dev, 2223 "Invalid dump table format: %lx\n", start_addr); 2224 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2225 return; 2226 } 2227 2228 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2229 2230 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2231 2232 /* Initialize the overall dump header */ 2233 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2234 driver_dump->hdr.num_entries = 1; 2235 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2236 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2237 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2238 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2239 2240 ipr_dump_version_data(ioa_cfg, driver_dump); 2241 ipr_dump_location_data(ioa_cfg, driver_dump); 2242 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2243 ipr_dump_trace_data(ioa_cfg, driver_dump); 2244 2245 /* Update dump_header */ 2246 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2247 2248 /* IOA Dump entry */ 2249 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2250 ioa_dump->format = IPR_SDT_FMT2; 2251 ioa_dump->hdr.len = 0; 2252 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2253 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2254 2255 /* First entries in sdt are actually a list of dump addresses and 2256 lengths to gather the real dump data. sdt represents the pointer 2257 to the ioa generated dump table. Dump data will be extracted based 2258 on entries in this table */ 2259 sdt = &ioa_dump->sdt; 2260 2261 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2262 sizeof(struct ipr_sdt) / sizeof(__be32)); 2263 2264 /* Smart Dump table is ready to use and the first entry is valid */ 2265 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { 2266 dev_err(&ioa_cfg->pdev->dev, 2267 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2268 rc, be32_to_cpu(sdt->hdr.state)); 2269 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2270 ioa_cfg->sdt_state = DUMP_OBTAINED; 2271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2272 return; 2273 } 2274 2275 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2276 2277 if (num_entries > IPR_NUM_SDT_ENTRIES) 2278 num_entries = IPR_NUM_SDT_ENTRIES; 2279 2280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2281 2282 for (i = 0; i < num_entries; i++) { 2283 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2284 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2285 break; 2286 } 2287 2288 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2289 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); 2290 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2291 end_off = be32_to_cpu(sdt->entry[i].end_offset); 2292 2293 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { 2294 bytes_to_copy = end_off - start_off; 2295 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2296 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2297 continue; 2298 } 2299 2300 /* Copy data from adapter to driver buffers */ 2301 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2302 bytes_to_copy); 2303 2304 ioa_dump->hdr.len += bytes_copied; 2305 2306 if (bytes_copied != bytes_to_copy) { 2307 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2308 break; 2309 } 2310 } 2311 } 2312 } 2313 2314 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 2315 2316 /* Update dump_header */ 2317 driver_dump->hdr.len += ioa_dump->hdr.len; 2318 wmb(); 2319 ioa_cfg->sdt_state = DUMP_OBTAINED; 2320 LEAVE; 2321} 2322 2323#else 2324#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 2325#endif 2326 2327/** 2328 * ipr_release_dump - Free adapter dump memory 2329 * @kref: kref struct 2330 * 2331 * Return value: 2332 * nothing 2333 **/ 2334static void ipr_release_dump(struct kref *kref) 2335{ 2336 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 2337 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 2338 unsigned long lock_flags = 0; 2339 int i; 2340 2341 ENTER; 2342 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2343 ioa_cfg->dump = NULL; 2344 ioa_cfg->sdt_state = INACTIVE; 2345 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2346 2347 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 2348 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 2349 2350 kfree(dump); 2351 LEAVE; 2352} 2353 2354/** 2355 * ipr_worker_thread - Worker thread 2356 * @work: ioa config struct 2357 * 2358 * Called at task level from a work thread. This function takes care 2359 * of adding and removing device from the mid-layer as configuration 2360 * changes are detected by the adapter. 2361 * 2362 * Return value: 2363 * nothing 2364 **/ 2365static void ipr_worker_thread(struct work_struct *work) 2366{ 2367 unsigned long lock_flags; 2368 struct ipr_resource_entry *res; 2369 struct scsi_device *sdev; 2370 struct ipr_dump *dump; 2371 struct ipr_ioa_cfg *ioa_cfg = 2372 container_of(work, struct ipr_ioa_cfg, work_q); 2373 u8 bus, target, lun; 2374 int did_work; 2375 2376 ENTER; 2377 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2378 2379 if (ioa_cfg->sdt_state == GET_DUMP) { 2380 dump = ioa_cfg->dump; 2381 if (!dump) { 2382 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2383 return; 2384 } 2385 kref_get(&dump->kref); 2386 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2387 ipr_get_ioa_dump(ioa_cfg, dump); 2388 kref_put(&dump->kref, ipr_release_dump); 2389 2390 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2391 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 2392 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2393 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2394 return; 2395 } 2396 2397restart: 2398 do { 2399 did_work = 0; 2400 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 2401 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2402 return; 2403 } 2404 2405 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2406 if (res->del_from_ml && res->sdev) { 2407 did_work = 1; 2408 sdev = res->sdev; 2409 if (!scsi_device_get(sdev)) { 2410 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 2411 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2412 scsi_remove_device(sdev); 2413 scsi_device_put(sdev); 2414 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2415 } 2416 break; 2417 } 2418 } 2419 } while(did_work); 2420 2421 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2422 if (res->add_to_ml) { 2423 bus = res->cfgte.res_addr.bus; 2424 target = res->cfgte.res_addr.target; 2425 lun = res->cfgte.res_addr.lun; 2426 res->add_to_ml = 0; 2427 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2428 scsi_add_device(ioa_cfg->host, bus, target, lun); 2429 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2430 goto restart; 2431 } 2432 } 2433 2434 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2435 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 2436 LEAVE; 2437} 2438 2439#ifdef CONFIG_SCSI_IPR_TRACE 2440/** 2441 * ipr_read_trace - Dump the adapter trace 2442 * @kobj: kobject struct 2443 * @bin_attr: bin_attribute struct 2444 * @buf: buffer 2445 * @off: offset 2446 * @count: buffer size 2447 * 2448 * Return value: 2449 * number of bytes printed to buffer 2450 **/ 2451static ssize_t ipr_read_trace(struct kobject *kobj, 2452 struct bin_attribute *bin_attr, 2453 char *buf, loff_t off, size_t count) 2454{ 2455 struct device *dev = container_of(kobj, struct device, kobj); 2456 struct Scsi_Host *shost = class_to_shost(dev); 2457 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2458 unsigned long lock_flags = 0; 2459 ssize_t ret; 2460 2461 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2462 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 2463 IPR_TRACE_SIZE); 2464 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2465 2466 return ret; 2467} 2468 2469static struct bin_attribute ipr_trace_attr = { 2470 .attr = { 2471 .name = "trace", 2472 .mode = S_IRUGO, 2473 }, 2474 .size = 0, 2475 .read = ipr_read_trace, 2476}; 2477#endif 2478 2479static const struct { 2480 enum ipr_cache_state state; 2481 char *name; 2482} cache_state [] = { 2483 { CACHE_NONE, "none" }, 2484 { CACHE_DISABLED, "disabled" }, 2485 { CACHE_ENABLED, "enabled" } 2486}; 2487 2488/** 2489 * ipr_show_write_caching - Show the write caching attribute 2490 * @dev: device struct 2491 * @buf: buffer 2492 * 2493 * Return value: 2494 * number of bytes printed to buffer 2495 **/ 2496static ssize_t ipr_show_write_caching(struct device *dev, 2497 struct device_attribute *attr, char *buf) 2498{ 2499 struct Scsi_Host *shost = class_to_shost(dev); 2500 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2501 unsigned long lock_flags = 0; 2502 int i, len = 0; 2503 2504 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2505 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2506 if (cache_state[i].state == ioa_cfg->cache_state) { 2507 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); 2508 break; 2509 } 2510 } 2511 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2512 return len; 2513} 2514 2515 2516/** 2517 * ipr_store_write_caching - Enable/disable adapter write cache 2518 * @dev: device struct 2519 * @buf: buffer 2520 * @count: buffer size 2521 * 2522 * This function will enable/disable adapter write cache. 2523 * 2524 * Return value: 2525 * count on success / other on failure 2526 **/ 2527static ssize_t ipr_store_write_caching(struct device *dev, 2528 struct device_attribute *attr, 2529 const char *buf, size_t count) 2530{ 2531 struct Scsi_Host *shost = class_to_shost(dev); 2532 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2533 unsigned long lock_flags = 0; 2534 enum ipr_cache_state new_state = CACHE_INVALID; 2535 int i; 2536 2537 if (!capable(CAP_SYS_ADMIN)) 2538 return -EACCES; 2539 if (ioa_cfg->cache_state == CACHE_NONE) 2540 return -EINVAL; 2541 2542 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2543 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { 2544 new_state = cache_state[i].state; 2545 break; 2546 } 2547 } 2548 2549 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) 2550 return -EINVAL; 2551 2552 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2553 if (ioa_cfg->cache_state == new_state) { 2554 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2555 return count; 2556 } 2557 2558 ioa_cfg->cache_state = new_state; 2559 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", 2560 new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); 2561 if (!ioa_cfg->in_reset_reload) 2562 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2563 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2564 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2565 2566 return count; 2567} 2568 2569static struct device_attribute ipr_ioa_cache_attr = { 2570 .attr = { 2571 .name = "write_cache", 2572 .mode = S_IRUGO | S_IWUSR, 2573 }, 2574 .show = ipr_show_write_caching, 2575 .store = ipr_store_write_caching 2576}; 2577 2578/** 2579 * ipr_show_fw_version - Show the firmware version 2580 * @dev: class device struct 2581 * @buf: buffer 2582 * 2583 * Return value: 2584 * number of bytes printed to buffer 2585 **/ 2586static ssize_t ipr_show_fw_version(struct device *dev, 2587 struct device_attribute *attr, char *buf) 2588{ 2589 struct Scsi_Host *shost = class_to_shost(dev); 2590 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2591 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2592 unsigned long lock_flags = 0; 2593 int len; 2594 2595 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2596 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 2597 ucode_vpd->major_release, ucode_vpd->card_type, 2598 ucode_vpd->minor_release[0], 2599 ucode_vpd->minor_release[1]); 2600 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2601 return len; 2602} 2603 2604static struct device_attribute ipr_fw_version_attr = { 2605 .attr = { 2606 .name = "fw_version", 2607 .mode = S_IRUGO, 2608 }, 2609 .show = ipr_show_fw_version, 2610}; 2611 2612/** 2613 * ipr_show_log_level - Show the adapter's error logging level 2614 * @dev: class device struct 2615 * @buf: buffer 2616 * 2617 * Return value: 2618 * number of bytes printed to buffer 2619 **/ 2620static ssize_t ipr_show_log_level(struct device *dev, 2621 struct device_attribute *attr, char *buf) 2622{ 2623 struct Scsi_Host *shost = class_to_shost(dev); 2624 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2625 unsigned long lock_flags = 0; 2626 int len; 2627 2628 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2629 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 2630 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2631 return len; 2632} 2633 2634/** 2635 * ipr_store_log_level - Change the adapter's error logging level 2636 * @dev: class device struct 2637 * @buf: buffer 2638 * 2639 * Return value: 2640 * number of bytes printed to buffer 2641 **/ 2642static ssize_t ipr_store_log_level(struct device *dev, 2643 struct device_attribute *attr, 2644 const char *buf, size_t count) 2645{ 2646 struct Scsi_Host *shost = class_to_shost(dev); 2647 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2648 unsigned long lock_flags = 0; 2649 2650 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2651 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 2652 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2653 return strlen(buf); 2654} 2655 2656static struct device_attribute ipr_log_level_attr = { 2657 .attr = { 2658 .name = "log_level", 2659 .mode = S_IRUGO | S_IWUSR, 2660 }, 2661 .show = ipr_show_log_level, 2662 .store = ipr_store_log_level 2663}; 2664 2665/** 2666 * ipr_store_diagnostics - IOA Diagnostics interface 2667 * @dev: device struct 2668 * @buf: buffer 2669 * @count: buffer size 2670 * 2671 * This function will reset the adapter and wait a reasonable 2672 * amount of time for any errors that the adapter might log. 2673 * 2674 * Return value: 2675 * count on success / other on failure 2676 **/ 2677static ssize_t ipr_store_diagnostics(struct device *dev, 2678 struct device_attribute *attr, 2679 const char *buf, size_t count) 2680{ 2681 struct Scsi_Host *shost = class_to_shost(dev); 2682 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2683 unsigned long lock_flags = 0; 2684 int rc = count; 2685 2686 if (!capable(CAP_SYS_ADMIN)) 2687 return -EACCES; 2688 2689 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2690 while(ioa_cfg->in_reset_reload) { 2691 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2692 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2693 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2694 } 2695 2696 ioa_cfg->errors_logged = 0; 2697 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2698 2699 if (ioa_cfg->in_reset_reload) { 2700 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2701 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2702 2703 /* Wait for a second for any errors to be logged */ 2704 msleep(1000); 2705 } else { 2706 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2707 return -EIO; 2708 } 2709 2710 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2711 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 2712 rc = -EIO; 2713 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2714 2715 return rc; 2716} 2717 2718static struct device_attribute ipr_diagnostics_attr = { 2719 .attr = { 2720 .name = "run_diagnostics", 2721 .mode = S_IWUSR, 2722 }, 2723 .store = ipr_store_diagnostics 2724}; 2725 2726/** 2727 * ipr_show_adapter_state - Show the adapter's state 2728 * @class_dev: device struct 2729 * @buf: buffer 2730 * 2731 * Return value: 2732 * number of bytes printed to buffer 2733 **/ 2734static ssize_t ipr_show_adapter_state(struct device *dev, 2735 struct device_attribute *attr, char *buf) 2736{ 2737 struct Scsi_Host *shost = class_to_shost(dev); 2738 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2739 unsigned long lock_flags = 0; 2740 int len; 2741 2742 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2743 if (ioa_cfg->ioa_is_dead) 2744 len = snprintf(buf, PAGE_SIZE, "offline\n"); 2745 else 2746 len = snprintf(buf, PAGE_SIZE, "online\n"); 2747 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2748 return len; 2749} 2750 2751/** 2752 * ipr_store_adapter_state - Change adapter state 2753 * @dev: device struct 2754 * @buf: buffer 2755 * @count: buffer size 2756 * 2757 * This function will change the adapter's state. 2758 * 2759 * Return value: 2760 * count on success / other on failure 2761 **/ 2762static ssize_t ipr_store_adapter_state(struct device *dev, 2763 struct device_attribute *attr, 2764 const char *buf, size_t count) 2765{ 2766 struct Scsi_Host *shost = class_to_shost(dev); 2767 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2768 unsigned long lock_flags; 2769 int result = count; 2770 2771 if (!capable(CAP_SYS_ADMIN)) 2772 return -EACCES; 2773 2774 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2775 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 2776 ioa_cfg->ioa_is_dead = 0; 2777 ioa_cfg->reset_retries = 0; 2778 ioa_cfg->in_ioa_bringdown = 0; 2779 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2780 } 2781 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2782 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2783 2784 return result; 2785} 2786 2787static struct device_attribute ipr_ioa_state_attr = { 2788 .attr = { 2789 .name = "online_state", 2790 .mode = S_IRUGO | S_IWUSR, 2791 }, 2792 .show = ipr_show_adapter_state, 2793 .store = ipr_store_adapter_state 2794}; 2795 2796/** 2797 * ipr_store_reset_adapter - Reset the adapter 2798 * @dev: device struct 2799 * @buf: buffer 2800 * @count: buffer size 2801 * 2802 * This function will reset the adapter. 2803 * 2804 * Return value: 2805 * count on success / other on failure 2806 **/ 2807static ssize_t ipr_store_reset_adapter(struct device *dev, 2808 struct device_attribute *attr, 2809 const char *buf, size_t count) 2810{ 2811 struct Scsi_Host *shost = class_to_shost(dev); 2812 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2813 unsigned long lock_flags; 2814 int result = count; 2815 2816 if (!capable(CAP_SYS_ADMIN)) 2817 return -EACCES; 2818 2819 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2820 if (!ioa_cfg->in_reset_reload) 2821 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2822 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2823 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2824 2825 return result; 2826} 2827 2828static struct device_attribute ipr_ioa_reset_attr = { 2829 .attr = { 2830 .name = "reset_host", 2831 .mode = S_IWUSR, 2832 }, 2833 .store = ipr_store_reset_adapter 2834}; 2835 2836/** 2837 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 2838 * @buf_len: buffer length 2839 * 2840 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 2841 * list to use for microcode download 2842 * 2843 * Return value: 2844 * pointer to sglist / NULL on failure 2845 **/ 2846static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 2847{ 2848 int sg_size, order, bsize_elem, num_elem, i, j; 2849 struct ipr_sglist *sglist; 2850 struct scatterlist *scatterlist; 2851 struct page *page; 2852 2853 /* Get the minimum size per scatter/gather element */ 2854 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 2855 2856 /* Get the actual size per element */ 2857 order = get_order(sg_size); 2858 2859 /* Determine the actual number of bytes per element */ 2860 bsize_elem = PAGE_SIZE * (1 << order); 2861 2862 /* Determine the actual number of sg entries needed */ 2863 if (buf_len % bsize_elem) 2864 num_elem = (buf_len / bsize_elem) + 1; 2865 else 2866 num_elem = buf_len / bsize_elem; 2867 2868 /* Allocate a scatter/gather list for the DMA */ 2869 sglist = kzalloc(sizeof(struct ipr_sglist) + 2870 (sizeof(struct scatterlist) * (num_elem - 1)), 2871 GFP_KERNEL); 2872 2873 if (sglist == NULL) { 2874 ipr_trace; 2875 return NULL; 2876 } 2877 2878 scatterlist = sglist->scatterlist; 2879 sg_init_table(scatterlist, num_elem); 2880 2881 sglist->order = order; 2882 sglist->num_sg = num_elem; 2883 2884 /* Allocate a bunch of sg elements */ 2885 for (i = 0; i < num_elem; i++) { 2886 page = alloc_pages(GFP_KERNEL, order); 2887 if (!page) { 2888 ipr_trace; 2889 2890 /* Free up what we already allocated */ 2891 for (j = i - 1; j >= 0; j--) 2892 __free_pages(sg_page(&scatterlist[j]), order); 2893 kfree(sglist); 2894 return NULL; 2895 } 2896 2897 sg_set_page(&scatterlist[i], page, 0, 0); 2898 } 2899 2900 return sglist; 2901} 2902 2903/** 2904 * ipr_free_ucode_buffer - Frees a microcode download buffer 2905 * @p_dnld: scatter/gather list pointer 2906 * 2907 * Free a DMA'able ucode download buffer previously allocated with 2908 * ipr_alloc_ucode_buffer 2909 * 2910 * Return value: 2911 * nothing 2912 **/ 2913static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 2914{ 2915 int i; 2916 2917 for (i = 0; i < sglist->num_sg; i++) 2918 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 2919 2920 kfree(sglist); 2921} 2922 2923/** 2924 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 2925 * @sglist: scatter/gather list pointer 2926 * @buffer: buffer pointer 2927 * @len: buffer length 2928 * 2929 * Copy a microcode image from a user buffer into a buffer allocated by 2930 * ipr_alloc_ucode_buffer 2931 * 2932 * Return value: 2933 * 0 on success / other on failure 2934 **/ 2935static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 2936 u8 *buffer, u32 len) 2937{ 2938 int bsize_elem, i, result = 0; 2939 struct scatterlist *scatterlist; 2940 void *kaddr; 2941 2942 /* Determine the actual number of bytes per element */ 2943 bsize_elem = PAGE_SIZE * (1 << sglist->order); 2944 2945 scatterlist = sglist->scatterlist; 2946 2947 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 2948 struct page *page = sg_page(&scatterlist[i]); 2949 2950 kaddr = kmap(page); 2951 memcpy(kaddr, buffer, bsize_elem); 2952 kunmap(page); 2953 2954 scatterlist[i].length = bsize_elem; 2955 2956 if (result != 0) { 2957 ipr_trace; 2958 return result; 2959 } 2960 } 2961 2962 if (len % bsize_elem) { 2963 struct page *page = sg_page(&scatterlist[i]); 2964 2965 kaddr = kmap(page); 2966 memcpy(kaddr, buffer, len % bsize_elem); 2967 kunmap(page); 2968 2969 scatterlist[i].length = len % bsize_elem; 2970 } 2971 2972 sglist->buffer_len = len; 2973 return result; 2974} 2975 2976/** 2977 * ipr_build_ucode_ioadl - Build a microcode download IOADL 2978 * @ipr_cmd: ipr command struct 2979 * @sglist: scatter/gather list 2980 * 2981 * Builds a microcode download IOA data list (IOADL). 2982 * 2983 **/ 2984static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 2985 struct ipr_sglist *sglist) 2986{ 2987 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 2988 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 2989 struct scatterlist *scatterlist = sglist->scatterlist; 2990 int i; 2991 2992 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 2993 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 2994 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); 2995 ioarcb->write_ioadl_len = 2996 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 2997 2998 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 2999 ioadl[i].flags_and_data_len = 3000 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3001 ioadl[i].address = 3002 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3003 } 3004 3005 ioadl[i-1].flags_and_data_len |= 3006 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3007} 3008 3009/** 3010 * ipr_update_ioa_ucode - Update IOA's microcode 3011 * @ioa_cfg: ioa config struct 3012 * @sglist: scatter/gather list 3013 * 3014 * Initiate an adapter reset to update the IOA's microcode 3015 * 3016 * Return value: 3017 * 0 on success / -EIO on failure 3018 **/ 3019static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3020 struct ipr_sglist *sglist) 3021{ 3022 unsigned long lock_flags; 3023 3024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3025 while(ioa_cfg->in_reset_reload) { 3026 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3027 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3028 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3029 } 3030 3031 if (ioa_cfg->ucode_sglist) { 3032 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3033 dev_err(&ioa_cfg->pdev->dev, 3034 "Microcode download already in progress\n"); 3035 return -EIO; 3036 } 3037 3038 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3039 sglist->num_sg, DMA_TO_DEVICE); 3040 3041 if (!sglist->num_dma_sg) { 3042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3043 dev_err(&ioa_cfg->pdev->dev, 3044 "Failed to map microcode download buffer!\n"); 3045 return -EIO; 3046 } 3047 3048 ioa_cfg->ucode_sglist = sglist; 3049 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3051 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3052 3053 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3054 ioa_cfg->ucode_sglist = NULL; 3055 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3056 return 0; 3057} 3058 3059/** 3060 * ipr_store_update_fw - Update the firmware on the adapter 3061 * @class_dev: device struct 3062 * @buf: buffer 3063 * @count: buffer size 3064 * 3065 * This function will update the firmware on the adapter. 3066 * 3067 * Return value: 3068 * count on success / other on failure 3069 **/ 3070static ssize_t ipr_store_update_fw(struct device *dev, 3071 struct device_attribute *attr, 3072 const char *buf, size_t count) 3073{ 3074 struct Scsi_Host *shost = class_to_shost(dev); 3075 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3076 struct ipr_ucode_image_header *image_hdr; 3077 const struct firmware *fw_entry; 3078 struct ipr_sglist *sglist; 3079 char fname[100]; 3080 char *src; 3081 int len, result, dnld_size; 3082 3083 if (!capable(CAP_SYS_ADMIN)) 3084 return -EACCES; 3085 3086 len = snprintf(fname, 99, "%s", buf); 3087 fname[len-1] = '\0'; 3088 3089 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3090 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3091 return -EIO; 3092 } 3093 3094 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3095 3096 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3097 (ioa_cfg->vpd_cbs->page3_data.card_type && 3098 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3099 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3100 release_firmware(fw_entry); 3101 return -EINVAL; 3102 } 3103 3104 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3105 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3106 sglist = ipr_alloc_ucode_buffer(dnld_size); 3107 3108 if (!sglist) { 3109 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3110 release_firmware(fw_entry); 3111 return -ENOMEM; 3112 } 3113 3114 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3115 3116 if (result) { 3117 dev_err(&ioa_cfg->pdev->dev, 3118 "Microcode buffer copy to DMA buffer failed\n"); 3119 goto out; 3120 } 3121 3122 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3123 3124 if (!result) 3125 result = count; 3126out: 3127 ipr_free_ucode_buffer(sglist); 3128 release_firmware(fw_entry); 3129 return result; 3130} 3131 3132static struct device_attribute ipr_update_fw_attr = { 3133 .attr = { 3134 .name = "update_fw", 3135 .mode = S_IWUSR, 3136 }, 3137 .store = ipr_store_update_fw 3138}; 3139 3140static struct device_attribute *ipr_ioa_attrs[] = { 3141 &ipr_fw_version_attr, 3142 &ipr_log_level_attr, 3143 &ipr_diagnostics_attr, 3144 &ipr_ioa_state_attr, 3145 &ipr_ioa_reset_attr, 3146 &ipr_update_fw_attr, 3147 &ipr_ioa_cache_attr, 3148 NULL, 3149}; 3150 3151#ifdef CONFIG_SCSI_IPR_DUMP 3152/** 3153 * ipr_read_dump - Dump the adapter 3154 * @kobj: kobject struct 3155 * @bin_attr: bin_attribute struct 3156 * @buf: buffer 3157 * @off: offset 3158 * @count: buffer size 3159 * 3160 * Return value: 3161 * number of bytes printed to buffer 3162 **/ 3163static ssize_t ipr_read_dump(struct kobject *kobj, 3164 struct bin_attribute *bin_attr, 3165 char *buf, loff_t off, size_t count) 3166{ 3167 struct device *cdev = container_of(kobj, struct device, kobj); 3168 struct Scsi_Host *shost = class_to_shost(cdev); 3169 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3170 struct ipr_dump *dump; 3171 unsigned long lock_flags = 0; 3172 char *src; 3173 int len; 3174 size_t rc = count; 3175 3176 if (!capable(CAP_SYS_ADMIN)) 3177 return -EACCES; 3178 3179 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3180 dump = ioa_cfg->dump; 3181 3182 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3183 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3184 return 0; 3185 } 3186 kref_get(&dump->kref); 3187 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3188 3189 if (off > dump->driver_dump.hdr.len) { 3190 kref_put(&dump->kref, ipr_release_dump); 3191 return 0; 3192 } 3193 3194 if (off + count > dump->driver_dump.hdr.len) { 3195 count = dump->driver_dump.hdr.len - off; 3196 rc = count; 3197 } 3198 3199 if (count && off < sizeof(dump->driver_dump)) { 3200 if (off + count > sizeof(dump->driver_dump)) 3201 len = sizeof(dump->driver_dump) - off; 3202 else 3203 len = count; 3204 src = (u8 *)&dump->driver_dump + off; 3205 memcpy(buf, src, len); 3206 buf += len; 3207 off += len; 3208 count -= len; 3209 } 3210 3211 off -= sizeof(dump->driver_dump); 3212 3213 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3214 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3215 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3216 else 3217 len = count; 3218 src = (u8 *)&dump->ioa_dump + off; 3219 memcpy(buf, src, len); 3220 buf += len; 3221 off += len; 3222 count -= len; 3223 } 3224 3225 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3226 3227 while (count) { 3228 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3229 len = PAGE_ALIGN(off) - off; 3230 else 3231 len = count; 3232 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3233 src += off & ~PAGE_MASK; 3234 memcpy(buf, src, len); 3235 buf += len; 3236 off += len; 3237 count -= len; 3238 } 3239 3240 kref_put(&dump->kref, ipr_release_dump); 3241 return rc; 3242} 3243 3244/** 3245 * ipr_alloc_dump - Prepare for adapter dump 3246 * @ioa_cfg: ioa config struct 3247 * 3248 * Return value: 3249 * 0 on success / other on failure 3250 **/ 3251static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3252{ 3253 struct ipr_dump *dump; 3254 unsigned long lock_flags = 0; 3255 3256 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3257 3258 if (!dump) { 3259 ipr_err("Dump memory allocation failed\n"); 3260 return -ENOMEM; 3261 } 3262 3263 kref_init(&dump->kref); 3264 dump->ioa_cfg = ioa_cfg; 3265 3266 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3267 3268 if (INACTIVE != ioa_cfg->sdt_state) { 3269 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3270 kfree(dump); 3271 return 0; 3272 } 3273 3274 ioa_cfg->dump = dump; 3275 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3276 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3277 ioa_cfg->dump_taken = 1; 3278 schedule_work(&ioa_cfg->work_q); 3279 } 3280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3281 3282 return 0; 3283} 3284 3285/** 3286 * ipr_free_dump - Free adapter dump memory 3287 * @ioa_cfg: ioa config struct 3288 * 3289 * Return value: 3290 * 0 on success / other on failure 3291 **/ 3292static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3293{ 3294 struct ipr_dump *dump; 3295 unsigned long lock_flags = 0; 3296 3297 ENTER; 3298 3299 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3300 dump = ioa_cfg->dump; 3301 if (!dump) { 3302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3303 return 0; 3304 } 3305 3306 ioa_cfg->dump = NULL; 3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3308 3309 kref_put(&dump->kref, ipr_release_dump); 3310 3311 LEAVE; 3312 return 0; 3313} 3314 3315/** 3316 * ipr_write_dump - Setup dump state of adapter 3317 * @kobj: kobject struct 3318 * @bin_attr: bin_attribute struct 3319 * @buf: buffer 3320 * @off: offset 3321 * @count: buffer size 3322 * 3323 * Return value: 3324 * number of bytes printed to buffer 3325 **/ 3326static ssize_t ipr_write_dump(struct kobject *kobj, 3327 struct bin_attribute *bin_attr, 3328 char *buf, loff_t off, size_t count) 3329{ 3330 struct device *cdev = container_of(kobj, struct device, kobj); 3331 struct Scsi_Host *shost = class_to_shost(cdev); 3332 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3333 int rc; 3334 3335 if (!capable(CAP_SYS_ADMIN)) 3336 return -EACCES; 3337 3338 if (buf[0] == '1') 3339 rc = ipr_alloc_dump(ioa_cfg); 3340 else if (buf[0] == '0') 3341 rc = ipr_free_dump(ioa_cfg); 3342 else 3343 return -EINVAL; 3344 3345 if (rc) 3346 return rc; 3347 else 3348 return count; 3349} 3350 3351static struct bin_attribute ipr_dump_attr = { 3352 .attr = { 3353 .name = "dump", 3354 .mode = S_IRUSR | S_IWUSR, 3355 }, 3356 .size = 0, 3357 .read = ipr_read_dump, 3358 .write = ipr_write_dump 3359}; 3360#else 3361static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3362#endif 3363 3364/** 3365 * ipr_change_queue_depth - Change the device's queue depth 3366 * @sdev: scsi device struct 3367 * @qdepth: depth to set 3368 * 3369 * Return value: 3370 * actual depth set 3371 **/ 3372static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) 3373{ 3374 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3375 struct ipr_resource_entry *res; 3376 unsigned long lock_flags = 0; 3377 3378 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3379 res = (struct ipr_resource_entry *)sdev->hostdata; 3380 3381 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 3382 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 3383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3384 3385 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 3386 return sdev->queue_depth; 3387} 3388 3389/** 3390 * ipr_change_queue_type - Change the device's queue type 3391 * @dsev: scsi device struct 3392 * @tag_type: type of tags to use 3393 * 3394 * Return value: 3395 * actual queue type set 3396 **/ 3397static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 3398{ 3399 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3400 struct ipr_resource_entry *res; 3401 unsigned long lock_flags = 0; 3402 3403 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3404 res = (struct ipr_resource_entry *)sdev->hostdata; 3405 3406 if (res) { 3407 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 3408 /* 3409 * We don't bother quiescing the device here since the 3410 * adapter firmware does it for us. 3411 */ 3412 scsi_set_tag_type(sdev, tag_type); 3413 3414 if (tag_type) 3415 scsi_activate_tcq(sdev, sdev->queue_depth); 3416 else 3417 scsi_deactivate_tcq(sdev, sdev->queue_depth); 3418 } else 3419 tag_type = 0; 3420 } else 3421 tag_type = 0; 3422 3423 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3424 return tag_type; 3425} 3426 3427/** 3428 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 3429 * @dev: device struct 3430 * @buf: buffer 3431 * 3432 * Return value: 3433 * number of bytes printed to buffer 3434 **/ 3435static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 3436{ 3437 struct scsi_device *sdev = to_scsi_device(dev); 3438 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3439 struct ipr_resource_entry *res; 3440 unsigned long lock_flags = 0; 3441 ssize_t len = -ENXIO; 3442 3443 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3444 res = (struct ipr_resource_entry *)sdev->hostdata; 3445 if (res) 3446 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); 3447 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3448 return len; 3449} 3450 3451static struct device_attribute ipr_adapter_handle_attr = { 3452 .attr = { 3453 .name = "adapter_handle", 3454 .mode = S_IRUSR, 3455 }, 3456 .show = ipr_show_adapter_handle 3457}; 3458 3459static struct device_attribute *ipr_dev_attrs[] = { 3460 &ipr_adapter_handle_attr, 3461 NULL, 3462}; 3463 3464/** 3465 * ipr_biosparam - Return the HSC mapping 3466 * @sdev: scsi device struct 3467 * @block_device: block device pointer 3468 * @capacity: capacity of the device 3469 * @parm: Array containing returned HSC values. 3470 * 3471 * This function generates the HSC parms that fdisk uses. 3472 * We want to make sure we return something that places partitions 3473 * on 4k boundaries for best performance with the IOA. 3474 * 3475 * Return value: 3476 * 0 on success 3477 **/ 3478static int ipr_biosparam(struct scsi_device *sdev, 3479 struct block_device *block_device, 3480 sector_t capacity, int *parm) 3481{ 3482 int heads, sectors; 3483 sector_t cylinders; 3484 3485 heads = 128; 3486 sectors = 32; 3487 3488 cylinders = capacity; 3489 sector_div(cylinders, (128 * 32)); 3490 3491 /* return result */ 3492 parm[0] = heads; 3493 parm[1] = sectors; 3494 parm[2] = cylinders; 3495 3496 return 0; 3497} 3498 3499/** 3500 * ipr_find_starget - Find target based on bus/target. 3501 * @starget: scsi target struct 3502 * 3503 * Return value: 3504 * resource entry pointer if found / NULL if not found 3505 **/ 3506static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 3507{ 3508 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3509 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3510 struct ipr_resource_entry *res; 3511 3512 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3513 if ((res->cfgte.res_addr.bus == starget->channel) && 3514 (res->cfgte.res_addr.target == starget->id) && 3515 (res->cfgte.res_addr.lun == 0)) { 3516 return res; 3517 } 3518 } 3519 3520 return NULL; 3521} 3522 3523static struct ata_port_info sata_port_info; 3524 3525/** 3526 * ipr_target_alloc - Prepare for commands to a SCSI target 3527 * @starget: scsi target struct 3528 * 3529 * If the device is a SATA device, this function allocates an 3530 * ATA port with libata, else it does nothing. 3531 * 3532 * Return value: 3533 * 0 on success / non-0 on failure 3534 **/ 3535static int ipr_target_alloc(struct scsi_target *starget) 3536{ 3537 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3538 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3539 struct ipr_sata_port *sata_port; 3540 struct ata_port *ap; 3541 struct ipr_resource_entry *res; 3542 unsigned long lock_flags; 3543 3544 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3545 res = ipr_find_starget(starget); 3546 starget->hostdata = NULL; 3547 3548 if (res && ipr_is_gata(res)) { 3549 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3550 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 3551 if (!sata_port) 3552 return -ENOMEM; 3553 3554 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 3555 if (ap) { 3556 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3557 sata_port->ioa_cfg = ioa_cfg; 3558 sata_port->ap = ap; 3559 sata_port->res = res; 3560 3561 res->sata_port = sata_port; 3562 ap->private_data = sata_port; 3563 starget->hostdata = sata_port; 3564 } else { 3565 kfree(sata_port); 3566 return -ENOMEM; 3567 } 3568 } 3569 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3570 3571 return 0; 3572} 3573 3574/** 3575 * ipr_target_destroy - Destroy a SCSI target 3576 * @starget: scsi target struct 3577 * 3578 * If the device was a SATA device, this function frees the libata 3579 * ATA port, else it does nothing. 3580 * 3581 **/ 3582static void ipr_target_destroy(struct scsi_target *starget) 3583{ 3584 struct ipr_sata_port *sata_port = starget->hostdata; 3585 3586 if (sata_port) { 3587 starget->hostdata = NULL; 3588 ata_sas_port_destroy(sata_port->ap); 3589 kfree(sata_port); 3590 } 3591} 3592 3593/** 3594 * ipr_find_sdev - Find device based on bus/target/lun. 3595 * @sdev: scsi device struct 3596 * 3597 * Return value: 3598 * resource entry pointer if found / NULL if not found 3599 **/ 3600static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 3601{ 3602 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3603 struct ipr_resource_entry *res; 3604 3605 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3606 if ((res->cfgte.res_addr.bus == sdev->channel) && 3607 (res->cfgte.res_addr.target == sdev->id) && 3608 (res->cfgte.res_addr.lun == sdev->lun)) 3609 return res; 3610 } 3611 3612 return NULL; 3613} 3614 3615/** 3616 * ipr_slave_destroy - Unconfigure a SCSI device 3617 * @sdev: scsi device struct 3618 * 3619 * Return value: 3620 * nothing 3621 **/ 3622static void ipr_slave_destroy(struct scsi_device *sdev) 3623{ 3624 struct ipr_resource_entry *res; 3625 struct ipr_ioa_cfg *ioa_cfg; 3626 unsigned long lock_flags = 0; 3627 3628 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3629 3630 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3631 res = (struct ipr_resource_entry *) sdev->hostdata; 3632 if (res) { 3633 if (res->sata_port) 3634 ata_port_disable(res->sata_port->ap); 3635 sdev->hostdata = NULL; 3636 res->sdev = NULL; 3637 res->sata_port = NULL; 3638 } 3639 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3640} 3641 3642/** 3643 * ipr_slave_configure - Configure a SCSI device 3644 * @sdev: scsi device struct 3645 * 3646 * This function configures the specified scsi device. 3647 * 3648 * Return value: 3649 * 0 on success 3650 **/ 3651static int ipr_slave_configure(struct scsi_device *sdev) 3652{ 3653 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3654 struct ipr_resource_entry *res; 3655 unsigned long lock_flags = 0; 3656 3657 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3658 res = sdev->hostdata; 3659 if (res) { 3660 if (ipr_is_af_dasd_device(res)) 3661 sdev->type = TYPE_RAID; 3662 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 3663 sdev->scsi_level = 4; 3664 sdev->no_uld_attach = 1; 3665 } 3666 if (ipr_is_vset_device(res)) { 3667 blk_queue_rq_timeout(sdev->request_queue, 3668 IPR_VSET_RW_TIMEOUT); 3669 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 3670 } 3671 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 3672 sdev->allow_restart = 1; 3673 if (ipr_is_gata(res) && res->sata_port) { 3674 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 3675 ata_sas_slave_configure(sdev, res->sata_port->ap); 3676 } else { 3677 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 3678 } 3679 } 3680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3681 return 0; 3682} 3683 3684/** 3685 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 3686 * @sdev: scsi device struct 3687 * 3688 * This function initializes an ATA port so that future commands 3689 * sent through queuecommand will work. 3690 * 3691 * Return value: 3692 * 0 on success 3693 **/ 3694static int ipr_ata_slave_alloc(struct scsi_device *sdev) 3695{ 3696 struct ipr_sata_port *sata_port = NULL; 3697 int rc = -ENXIO; 3698 3699 ENTER; 3700 if (sdev->sdev_target) 3701 sata_port = sdev->sdev_target->hostdata; 3702 if (sata_port) 3703 rc = ata_sas_port_init(sata_port->ap); 3704 if (rc) 3705 ipr_slave_destroy(sdev); 3706 3707 LEAVE; 3708 return rc; 3709} 3710 3711/** 3712 * ipr_slave_alloc - Prepare for commands to a device. 3713 * @sdev: scsi device struct 3714 * 3715 * This function saves a pointer to the resource entry 3716 * in the scsi device struct if the device exists. We 3717 * can then use this pointer in ipr_queuecommand when 3718 * handling new commands. 3719 * 3720 * Return value: 3721 * 0 on success / -ENXIO if device does not exist 3722 **/ 3723static int ipr_slave_alloc(struct scsi_device *sdev) 3724{ 3725 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3726 struct ipr_resource_entry *res; 3727 unsigned long lock_flags; 3728 int rc = -ENXIO; 3729 3730 sdev->hostdata = NULL; 3731 3732 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3733 3734 res = ipr_find_sdev(sdev); 3735 if (res) { 3736 res->sdev = sdev; 3737 res->add_to_ml = 0; 3738 res->in_erp = 0; 3739 sdev->hostdata = res; 3740 if (!ipr_is_naca_model(res)) 3741 res->needs_sync_complete = 1; 3742 rc = 0; 3743 if (ipr_is_gata(res)) { 3744 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3745 return ipr_ata_slave_alloc(sdev); 3746 } 3747 } 3748 3749 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3750 3751 return rc; 3752} 3753 3754/** 3755 * ipr_eh_host_reset - Reset the host adapter 3756 * @scsi_cmd: scsi command struct 3757 * 3758 * Return value: 3759 * SUCCESS / FAILED 3760 **/ 3761static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 3762{ 3763 struct ipr_ioa_cfg *ioa_cfg; 3764 int rc; 3765 3766 ENTER; 3767 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3768 3769 dev_err(&ioa_cfg->pdev->dev, 3770 "Adapter being reset as a result of error recovery.\n"); 3771 3772 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 3773 ioa_cfg->sdt_state = GET_DUMP; 3774 3775 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 3776 3777 LEAVE; 3778 return rc; 3779} 3780 3781static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 3782{ 3783 int rc; 3784 3785 spin_lock_irq(cmd->device->host->host_lock); 3786 rc = __ipr_eh_host_reset(cmd); 3787 spin_unlock_irq(cmd->device->host->host_lock); 3788 3789 return rc; 3790} 3791 3792/** 3793 * ipr_device_reset - Reset the device 3794 * @ioa_cfg: ioa config struct 3795 * @res: resource entry struct 3796 * 3797 * This function issues a device reset to the affected device. 3798 * If the device is a SCSI device, a LUN reset will be sent 3799 * to the device first. If that does not work, a target reset 3800 * will be sent. If the device is a SATA device, a PHY reset will 3801 * be sent. 3802 * 3803 * Return value: 3804 * 0 on success / non-zero on failure 3805 **/ 3806static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 3807 struct ipr_resource_entry *res) 3808{ 3809 struct ipr_cmnd *ipr_cmd; 3810 struct ipr_ioarcb *ioarcb; 3811 struct ipr_cmd_pkt *cmd_pkt; 3812 struct ipr_ioarcb_ata_regs *regs; 3813 u32 ioasc; 3814 3815 ENTER; 3816 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 3817 ioarcb = &ipr_cmd->ioarcb; 3818 cmd_pkt = &ioarcb->cmd_pkt; 3819 regs = &ioarcb->add_data.u.regs; 3820 3821 ioarcb->res_handle = res->cfgte.res_handle; 3822 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 3823 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 3824 if (ipr_is_gata(res)) { 3825 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 3826 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); 3827 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 3828 } 3829 3830 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 3831 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 3832 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 3833 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) 3834 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 3835 sizeof(struct ipr_ioasa_gata)); 3836 3837 LEAVE; 3838 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 3839} 3840 3841/** 3842 * ipr_sata_reset - Reset the SATA port 3843 * @link: SATA link to reset 3844 * @classes: class of the attached device 3845 * 3846 * This function issues a SATA phy reset to the affected ATA link. 3847 * 3848 * Return value: 3849 * 0 on success / non-zero on failure 3850 **/ 3851static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 3852 unsigned long deadline) 3853{ 3854 struct ipr_sata_port *sata_port = link->ap->private_data; 3855 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 3856 struct ipr_resource_entry *res; 3857 unsigned long lock_flags = 0; 3858 int rc = -ENXIO; 3859 3860 ENTER; 3861 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3862 while(ioa_cfg->in_reset_reload) { 3863 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3864 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3865 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3866 } 3867 3868 res = sata_port->res; 3869 if (res) { 3870 rc = ipr_device_reset(ioa_cfg, res); 3871 switch(res->cfgte.proto) { 3872 case IPR_PROTO_SATA: 3873 case IPR_PROTO_SAS_STP: 3874 *classes = ATA_DEV_ATA; 3875 break; 3876 case IPR_PROTO_SATA_ATAPI: 3877 case IPR_PROTO_SAS_STP_ATAPI: 3878 *classes = ATA_DEV_ATAPI; 3879 break; 3880 default: 3881 *classes = ATA_DEV_UNKNOWN; 3882 break; 3883 }; 3884 } 3885 3886 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3887 LEAVE; 3888 return rc; 3889} 3890 3891/** 3892 * ipr_eh_dev_reset - Reset the device 3893 * @scsi_cmd: scsi command struct 3894 * 3895 * This function issues a device reset to the affected device. 3896 * A LUN reset will be sent to the device first. If that does 3897 * not work, a target reset will be sent. 3898 * 3899 * Return value: 3900 * SUCCESS / FAILED 3901 **/ 3902static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 3903{ 3904 struct ipr_cmnd *ipr_cmd; 3905 struct ipr_ioa_cfg *ioa_cfg; 3906 struct ipr_resource_entry *res; 3907 struct ata_port *ap; 3908 int rc = 0; 3909 3910 ENTER; 3911 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3912 res = scsi_cmd->device->hostdata; 3913 3914 if (!res) 3915 return FAILED; 3916 3917 /* 3918 * If we are currently going through reset/reload, return failed. This will force the 3919 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 3920 * reset to complete 3921 */ 3922 if (ioa_cfg->in_reset_reload) 3923 return FAILED; 3924 if (ioa_cfg->ioa_is_dead) 3925 return FAILED; 3926 3927 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 3928 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { 3929 if (ipr_cmd->scsi_cmd) 3930 ipr_cmd->done = ipr_scsi_eh_done; 3931 if (ipr_cmd->qc) 3932 ipr_cmd->done = ipr_sata_eh_done; 3933 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 3934 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 3935 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 3936 } 3937 } 3938 } 3939 3940 res->resetting_device = 1; 3941 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 3942 3943 if (ipr_is_gata(res) && res->sata_port) { 3944 ap = res->sata_port->ap; 3945 spin_unlock_irq(scsi_cmd->device->host->host_lock); 3946 ata_std_error_handler(ap); 3947 spin_lock_irq(scsi_cmd->device->host->host_lock); 3948 3949 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 3950 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { 3951 rc = -EIO; 3952 break; 3953 } 3954 } 3955 } else 3956 rc = ipr_device_reset(ioa_cfg, res); 3957 res->resetting_device = 0; 3958 3959 LEAVE; 3960 return (rc ? FAILED : SUCCESS); 3961} 3962 3963static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 3964{ 3965 int rc; 3966 3967 spin_lock_irq(cmd->device->host->host_lock); 3968 rc = __ipr_eh_dev_reset(cmd); 3969 spin_unlock_irq(cmd->device->host->host_lock); 3970 3971 return rc; 3972} 3973 3974/** 3975 * ipr_bus_reset_done - Op done function for bus reset. 3976 * @ipr_cmd: ipr command struct 3977 * 3978 * This function is the op done function for a bus reset 3979 * 3980 * Return value: 3981 * none 3982 **/ 3983static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 3984{ 3985 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 3986 struct ipr_resource_entry *res; 3987 3988 ENTER; 3989 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3990 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, 3991 sizeof(res->cfgte.res_handle))) { 3992 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); 3993 break; 3994 } 3995 } 3996 3997 /* 3998 * If abort has not completed, indicate the reset has, else call the 3999 * abort's done function to wake the sleeping eh thread 4000 */ 4001 if (ipr_cmd->sibling->sibling) 4002 ipr_cmd->sibling->sibling = NULL; 4003 else 4004 ipr_cmd->sibling->done(ipr_cmd->sibling); 4005 4006 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4007 LEAVE; 4008} 4009 4010/** 4011 * ipr_abort_timeout - An abort task has timed out 4012 * @ipr_cmd: ipr command struct 4013 * 4014 * This function handles when an abort task times out. If this 4015 * happens we issue a bus reset since we have resources tied 4016 * up that must be freed before returning to the midlayer. 4017 * 4018 * Return value: 4019 * none 4020 **/ 4021static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4022{ 4023 struct ipr_cmnd *reset_cmd; 4024 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4025 struct ipr_cmd_pkt *cmd_pkt; 4026 unsigned long lock_flags = 0; 4027 4028 ENTER; 4029 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4030 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4031 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4032 return; 4033 } 4034 4035 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4036 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4037 ipr_cmd->sibling = reset_cmd; 4038 reset_cmd->sibling = ipr_cmd; 4039 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4040 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4041 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4042 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4043 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4044 4045 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4046 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4047 LEAVE; 4048} 4049 4050/** 4051 * ipr_cancel_op - Cancel specified op 4052 * @scsi_cmd: scsi command struct 4053 * 4054 * This function cancels specified op. 4055 * 4056 * Return value: 4057 * SUCCESS / FAILED 4058 **/ 4059static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4060{ 4061 struct ipr_cmnd *ipr_cmd; 4062 struct ipr_ioa_cfg *ioa_cfg; 4063 struct ipr_resource_entry *res; 4064 struct ipr_cmd_pkt *cmd_pkt; 4065 u32 ioasc; 4066 int op_found = 0; 4067 4068 ENTER; 4069 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4070 res = scsi_cmd->device->hostdata; 4071 4072 /* If we are currently going through reset/reload, return failed. 4073 * This will force the mid-layer to call ipr_eh_host_reset, 4074 * which will then go to sleep and wait for the reset to complete 4075 */ 4076 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4077 return FAILED; 4078 if (!res || !ipr_is_gscsi(res)) 4079 return FAILED; 4080 4081 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4082 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4083 ipr_cmd->done = ipr_scsi_eh_done; 4084 op_found = 1; 4085 break; 4086 } 4087 } 4088 4089 if (!op_found) 4090 return SUCCESS; 4091 4092 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4093 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 4094 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4095 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4096 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4097 ipr_cmd->u.sdev = scsi_cmd->device; 4098 4099 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4100 scsi_cmd->cmnd[0]); 4101 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4102 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4103 4104 /* 4105 * If the abort task timed out and we sent a bus reset, we will get 4106 * one the following responses to the abort 4107 */ 4108 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4109 ioasc = 0; 4110 ipr_trace; 4111 } 4112 4113 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4114 if (!ipr_is_naca_model(res)) 4115 res->needs_sync_complete = 1; 4116 4117 LEAVE; 4118 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4119} 4120 4121/** 4122 * ipr_eh_abort - Abort a single op 4123 * @scsi_cmd: scsi command struct 4124 * 4125 * Return value: 4126 * SUCCESS / FAILED 4127 **/ 4128static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4129{ 4130 unsigned long flags; 4131 int rc; 4132 4133 ENTER; 4134 4135 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4136 rc = ipr_cancel_op(scsi_cmd); 4137 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4138 4139 LEAVE; 4140 return rc; 4141} 4142 4143/** 4144 * ipr_handle_other_interrupt - Handle "other" interrupts 4145 * @ioa_cfg: ioa config struct 4146 * @int_reg: interrupt register 4147 * 4148 * Return value: 4149 * IRQ_NONE / IRQ_HANDLED 4150 **/ 4151static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4152 volatile u32 int_reg) 4153{ 4154 irqreturn_t rc = IRQ_HANDLED; 4155 4156 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4157 /* Mask the interrupt */ 4158 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4159 4160 /* Clear the interrupt */ 4161 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4162 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4163 4164 list_del(&ioa_cfg->reset_cmd->queue); 4165 del_timer(&ioa_cfg->reset_cmd->timer); 4166 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4167 } else { 4168 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4169 ioa_cfg->ioa_unit_checked = 1; 4170 else 4171 dev_err(&ioa_cfg->pdev->dev, 4172 "Permanent IOA failure. 0x%08X\n", int_reg); 4173 4174 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4175 ioa_cfg->sdt_state = GET_DUMP; 4176 4177 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4178 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4179 } 4180 4181 return rc; 4182} 4183 4184/** 4185 * ipr_isr - Interrupt service routine 4186 * @irq: irq number 4187 * @devp: pointer to ioa config struct 4188 * 4189 * Return value: 4190 * IRQ_NONE / IRQ_HANDLED 4191 **/ 4192static irqreturn_t ipr_isr(int irq, void *devp) 4193{ 4194 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4195 unsigned long lock_flags = 0; 4196 volatile u32 int_reg, int_mask_reg; 4197 u32 ioasc; 4198 u16 cmd_index; 4199 struct ipr_cmnd *ipr_cmd; 4200 irqreturn_t rc = IRQ_NONE; 4201 4202 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4203 4204 /* If interrupts are disabled, ignore the interrupt */ 4205 if (!ioa_cfg->allow_interrupts) { 4206 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4207 return IRQ_NONE; 4208 } 4209 4210 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4211 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4212 4213 /* If an interrupt on the adapter did not occur, ignore it */ 4214 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4215 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4216 return IRQ_NONE; 4217 } 4218 4219 while (1) { 4220 ipr_cmd = NULL; 4221 4222 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4223 ioa_cfg->toggle_bit) { 4224 4225 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4226 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4227 4228 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4229 ioa_cfg->errors_logged++; 4230 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); 4231 4232 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4233 ioa_cfg->sdt_state = GET_DUMP; 4234 4235 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4236 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4237 return IRQ_HANDLED; 4238 } 4239 4240 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4241 4242 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4243 4244 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4245 4246 list_del(&ipr_cmd->queue); 4247 del_timer(&ipr_cmd->timer); 4248 ipr_cmd->done(ipr_cmd); 4249 4250 rc = IRQ_HANDLED; 4251 4252 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4253 ioa_cfg->hrrq_curr++; 4254 } else { 4255 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4256 ioa_cfg->toggle_bit ^= 1u; 4257 } 4258 } 4259 4260 if (ipr_cmd != NULL) { 4261 /* Clear the PCI interrupt */ 4262 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); 4263 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4264 } else 4265 break; 4266 } 4267 4268 if (unlikely(rc == IRQ_NONE)) 4269 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4270 4271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4272 return rc; 4273} 4274 4275/** 4276 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 4277 * @ioa_cfg: ioa config struct 4278 * @ipr_cmd: ipr command struct 4279 * 4280 * Return value: 4281 * 0 on success / -1 on failure 4282 **/ 4283static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 4284 struct ipr_cmnd *ipr_cmd) 4285{ 4286 int i, nseg; 4287 struct scatterlist *sg; 4288 u32 length; 4289 u32 ioadl_flags = 0; 4290 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4291 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4292 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 4293 4294 length = scsi_bufflen(scsi_cmd); 4295 if (!length) 4296 return 0; 4297 4298 nseg = scsi_dma_map(scsi_cmd); 4299 if (nseg < 0) { 4300 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 4301 return -1; 4302 } 4303 4304 ipr_cmd->dma_use_sg = nseg; 4305 4306 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 4307 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 4308 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 4309 ioarcb->write_data_transfer_length = cpu_to_be32(length); 4310 ioarcb->write_ioadl_len = 4311 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4312 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 4313 ioadl_flags = IPR_IOADL_FLAGS_READ; 4314 ioarcb->read_data_transfer_length = cpu_to_be32(length); 4315 ioarcb->read_ioadl_len = 4316 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4317 } 4318 4319 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) { 4320 ioadl = ioarcb->add_data.u.ioadl; 4321 ioarcb->write_ioadl_addr = 4322 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + 4323 offsetof(struct ipr_ioarcb, add_data)); 4324 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4325 } 4326 4327 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 4328 ioadl[i].flags_and_data_len = 4329 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 4330 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 4331 } 4332 4333 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 4334 return 0; 4335} 4336 4337/** 4338 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 4339 * @scsi_cmd: scsi command struct 4340 * 4341 * Return value: 4342 * task attributes 4343 **/ 4344static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 4345{ 4346 u8 tag[2]; 4347 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 4348 4349 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 4350 switch (tag[0]) { 4351 case MSG_SIMPLE_TAG: 4352 rc = IPR_FLAGS_LO_SIMPLE_TASK; 4353 break; 4354 case MSG_HEAD_TAG: 4355 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 4356 break; 4357 case MSG_ORDERED_TAG: 4358 rc = IPR_FLAGS_LO_ORDERED_TASK; 4359 break; 4360 }; 4361 } 4362 4363 return rc; 4364} 4365 4366/** 4367 * ipr_erp_done - Process completion of ERP for a device 4368 * @ipr_cmd: ipr command struct 4369 * 4370 * This function copies the sense buffer into the scsi_cmd 4371 * struct and pushes the scsi_done function. 4372 * 4373 * Return value: 4374 * nothing 4375 **/ 4376static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 4377{ 4378 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4379 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4380 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4381 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4382 4383 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4384 scsi_cmd->result |= (DID_ERROR << 16); 4385 scmd_printk(KERN_ERR, scsi_cmd, 4386 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 4387 } else { 4388 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 4389 SCSI_SENSE_BUFFERSIZE); 4390 } 4391 4392 if (res) { 4393 if (!ipr_is_naca_model(res)) 4394 res->needs_sync_complete = 1; 4395 res->in_erp = 0; 4396 } 4397 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4398 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4399 scsi_cmd->scsi_done(scsi_cmd); 4400} 4401 4402/** 4403 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 4404 * @ipr_cmd: ipr command struct 4405 * 4406 * Return value: 4407 * none 4408 **/ 4409static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 4410{ 4411 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4412 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4413 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); 4414 4415 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 4416 ioarcb->write_data_transfer_length = 0; 4417 ioarcb->read_data_transfer_length = 0; 4418 ioarcb->write_ioadl_len = 0; 4419 ioarcb->read_ioadl_len = 0; 4420 ioasa->ioasc = 0; 4421 ioasa->residual_data_len = 0; 4422 ioarcb->write_ioadl_addr = 4423 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 4424 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4425} 4426 4427/** 4428 * ipr_erp_request_sense - Send request sense to a device 4429 * @ipr_cmd: ipr command struct 4430 * 4431 * This function sends a request sense to a device as a result 4432 * of a check condition. 4433 * 4434 * Return value: 4435 * nothing 4436 **/ 4437static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 4438{ 4439 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4440 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4441 4442 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4443 ipr_erp_done(ipr_cmd); 4444 return; 4445 } 4446 4447 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4448 4449 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 4450 cmd_pkt->cdb[0] = REQUEST_SENSE; 4451 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 4452 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 4453 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4454 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 4455 4456 ipr_cmd->ioadl[0].flags_and_data_len = 4457 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); 4458 ipr_cmd->ioadl[0].address = 4459 cpu_to_be32(ipr_cmd->sense_buffer_dma); 4460 4461 ipr_cmd->ioarcb.read_ioadl_len = 4462 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 4463 ipr_cmd->ioarcb.read_data_transfer_length = 4464 cpu_to_be32(SCSI_SENSE_BUFFERSIZE); 4465 4466 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 4467 IPR_REQUEST_SENSE_TIMEOUT * 2); 4468} 4469 4470/** 4471 * ipr_erp_cancel_all - Send cancel all to a device 4472 * @ipr_cmd: ipr command struct 4473 * 4474 * This function sends a cancel all to a device to clear the 4475 * queue. If we are running TCQ on the device, QERR is set to 1, 4476 * which means all outstanding ops have been dropped on the floor. 4477 * Cancel all will return them to us. 4478 * 4479 * Return value: 4480 * nothing 4481 **/ 4482static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 4483{ 4484 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4485 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4486 struct ipr_cmd_pkt *cmd_pkt; 4487 4488 res->in_erp = 1; 4489 4490 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4491 4492 if (!scsi_get_tag_type(scsi_cmd->device)) { 4493 ipr_erp_request_sense(ipr_cmd); 4494 return; 4495 } 4496 4497 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4498 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4499 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4500 4501 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 4502 IPR_CANCEL_ALL_TIMEOUT); 4503} 4504 4505/** 4506 * ipr_dump_ioasa - Dump contents of IOASA 4507 * @ioa_cfg: ioa config struct 4508 * @ipr_cmd: ipr command struct 4509 * @res: resource entry struct 4510 * 4511 * This function is invoked by the interrupt handler when ops 4512 * fail. It will log the IOASA if appropriate. Only called 4513 * for GPDD ops. 4514 * 4515 * Return value: 4516 * none 4517 **/ 4518static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 4519 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 4520{ 4521 int i; 4522 u16 data_len; 4523 u32 ioasc, fd_ioasc; 4524 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4525 __be32 *ioasa_data = (__be32 *)ioasa; 4526 int error_index; 4527 4528 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; 4529 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; 4530 4531 if (0 == ioasc) 4532 return; 4533 4534 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 4535 return; 4536 4537 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 4538 error_index = ipr_get_error(fd_ioasc); 4539 else 4540 error_index = ipr_get_error(ioasc); 4541 4542 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 4543 /* Don't log an error if the IOA already logged one */ 4544 if (ioasa->ilid != 0) 4545 return; 4546 4547 if (!ipr_is_gscsi(res)) 4548 return; 4549 4550 if (ipr_error_table[error_index].log_ioasa == 0) 4551 return; 4552 } 4553 4554 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 4555 4556 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) 4557 data_len = sizeof(struct ipr_ioasa); 4558 else 4559 data_len = be16_to_cpu(ioasa->ret_stat_len); 4560 4561 ipr_err("IOASA Dump:\n"); 4562 4563 for (i = 0; i < data_len / 4; i += 4) { 4564 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 4565 be32_to_cpu(ioasa_data[i]), 4566 be32_to_cpu(ioasa_data[i+1]), 4567 be32_to_cpu(ioasa_data[i+2]), 4568 be32_to_cpu(ioasa_data[i+3])); 4569 } 4570} 4571 4572/** 4573 * ipr_gen_sense - Generate SCSI sense data from an IOASA 4574 * @ioasa: IOASA 4575 * @sense_buf: sense data buffer 4576 * 4577 * Return value: 4578 * none 4579 **/ 4580static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 4581{ 4582 u32 failing_lba; 4583 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 4584 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 4585 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4586 u32 ioasc = be32_to_cpu(ioasa->ioasc); 4587 4588 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 4589 4590 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 4591 return; 4592 4593 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 4594 4595 if (ipr_is_vset_device(res) && 4596 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 4597 ioasa->u.vset.failing_lba_hi != 0) { 4598 sense_buf[0] = 0x72; 4599 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 4600 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 4601 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 4602 4603 sense_buf[7] = 12; 4604 sense_buf[8] = 0; 4605 sense_buf[9] = 0x0A; 4606 sense_buf[10] = 0x80; 4607 4608 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 4609 4610 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 4611 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 4612 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 4613 sense_buf[15] = failing_lba & 0x000000ff; 4614 4615 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4616 4617 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 4618 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 4619 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 4620 sense_buf[19] = failing_lba & 0x000000ff; 4621 } else { 4622 sense_buf[0] = 0x70; 4623 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 4624 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 4625 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 4626 4627 /* Illegal request */ 4628 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 4629 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 4630 sense_buf[7] = 10; /* additional length */ 4631 4632 /* IOARCB was in error */ 4633 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 4634 sense_buf[15] = 0xC0; 4635 else /* Parameter data was invalid */ 4636 sense_buf[15] = 0x80; 4637 4638 sense_buf[16] = 4639 ((IPR_FIELD_POINTER_MASK & 4640 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; 4641 sense_buf[17] = 4642 (IPR_FIELD_POINTER_MASK & 4643 be32_to_cpu(ioasa->ioasc_specific)) & 0xff; 4644 } else { 4645 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 4646 if (ipr_is_vset_device(res)) 4647 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4648 else 4649 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 4650 4651 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 4652 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 4653 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 4654 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 4655 sense_buf[6] = failing_lba & 0x000000ff; 4656 } 4657 4658 sense_buf[7] = 6; /* additional length */ 4659 } 4660 } 4661} 4662 4663/** 4664 * ipr_get_autosense - Copy autosense data to sense buffer 4665 * @ipr_cmd: ipr command struct 4666 * 4667 * This function copies the autosense buffer to the buffer 4668 * in the scsi_cmd, if there is autosense available. 4669 * 4670 * Return value: 4671 * 1 if autosense was available / 0 if not 4672 **/ 4673static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 4674{ 4675 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4676 4677 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 4678 return 0; 4679 4680 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 4681 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 4682 SCSI_SENSE_BUFFERSIZE)); 4683 return 1; 4684} 4685 4686/** 4687 * ipr_erp_start - Process an error response for a SCSI op 4688 * @ioa_cfg: ioa config struct 4689 * @ipr_cmd: ipr command struct 4690 * 4691 * This function determines whether or not to initiate ERP 4692 * on the affected device. 4693 * 4694 * Return value: 4695 * nothing 4696 **/ 4697static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 4698 struct ipr_cmnd *ipr_cmd) 4699{ 4700 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4701 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4702 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4703 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 4704 4705 if (!res) { 4706 ipr_scsi_eh_done(ipr_cmd); 4707 return; 4708 } 4709 4710 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 4711 ipr_gen_sense(ipr_cmd); 4712 4713 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 4714 4715 switch (masked_ioasc) { 4716 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 4717 if (ipr_is_naca_model(res)) 4718 scsi_cmd->result |= (DID_ABORT << 16); 4719 else 4720 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4721 break; 4722 case IPR_IOASC_IR_RESOURCE_HANDLE: 4723 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 4724 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4725 break; 4726 case IPR_IOASC_HW_SEL_TIMEOUT: 4727 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4728 if (!ipr_is_naca_model(res)) 4729 res->needs_sync_complete = 1; 4730 break; 4731 case IPR_IOASC_SYNC_REQUIRED: 4732 if (!res->in_erp) 4733 res->needs_sync_complete = 1; 4734 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4735 break; 4736 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 4737 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 4738 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 4739 break; 4740 case IPR_IOASC_BUS_WAS_RESET: 4741 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 4742 /* 4743 * Report the bus reset and ask for a retry. The device 4744 * will give CC/UA the next command. 4745 */ 4746 if (!res->resetting_device) 4747 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 4748 scsi_cmd->result |= (DID_ERROR << 16); 4749 if (!ipr_is_naca_model(res)) 4750 res->needs_sync_complete = 1; 4751 break; 4752 case IPR_IOASC_HW_DEV_BUS_STATUS: 4753 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 4754 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 4755 if (!ipr_get_autosense(ipr_cmd)) { 4756 if (!ipr_is_naca_model(res)) { 4757 ipr_erp_cancel_all(ipr_cmd); 4758 return; 4759 } 4760 } 4761 } 4762 if (!ipr_is_naca_model(res)) 4763 res->needs_sync_complete = 1; 4764 break; 4765 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 4766 break; 4767 default: 4768 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 4769 scsi_cmd->result |= (DID_ERROR << 16); 4770 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 4771 res->needs_sync_complete = 1; 4772 break; 4773 } 4774 4775 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4776 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4777 scsi_cmd->scsi_done(scsi_cmd); 4778} 4779 4780/** 4781 * ipr_scsi_done - mid-layer done function 4782 * @ipr_cmd: ipr command struct 4783 * 4784 * This function is invoked by the interrupt handler for 4785 * ops generated by the SCSI mid-layer 4786 * 4787 * Return value: 4788 * none 4789 **/ 4790static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 4791{ 4792 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4793 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4794 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4795 4796 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len)); 4797 4798 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 4799 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4800 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4801 scsi_cmd->scsi_done(scsi_cmd); 4802 } else 4803 ipr_erp_start(ioa_cfg, ipr_cmd); 4804} 4805 4806/** 4807 * ipr_queuecommand - Queue a mid-layer request 4808 * @scsi_cmd: scsi command struct 4809 * @done: done function 4810 * 4811 * This function queues a request generated by the mid-layer. 4812 * 4813 * Return value: 4814 * 0 on success 4815 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 4816 * SCSI_MLQUEUE_HOST_BUSY if host is busy 4817 **/ 4818static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 4819 void (*done) (struct scsi_cmnd *)) 4820{ 4821 struct ipr_ioa_cfg *ioa_cfg; 4822 struct ipr_resource_entry *res; 4823 struct ipr_ioarcb *ioarcb; 4824 struct ipr_cmnd *ipr_cmd; 4825 int rc = 0; 4826 4827 scsi_cmd->scsi_done = done; 4828 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4829 res = scsi_cmd->device->hostdata; 4830 scsi_cmd->result = (DID_OK << 16); 4831 4832 /* 4833 * We are currently blocking all devices due to a host reset 4834 * We have told the host to stop giving us new requests, but 4835 * ERP ops don't count. FIXME 4836 */ 4837 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 4838 return SCSI_MLQUEUE_HOST_BUSY; 4839 4840 /* 4841 * FIXME - Create scsi_set_host_offline interface 4842 * and the ioa_is_dead check can be removed 4843 */ 4844 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 4845 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 4846 scsi_cmd->result = (DID_NO_CONNECT << 16); 4847 scsi_cmd->scsi_done(scsi_cmd); 4848 return 0; 4849 } 4850 4851 if (ipr_is_gata(res) && res->sata_port) 4852 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 4853 4854 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4855 ioarcb = &ipr_cmd->ioarcb; 4856 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 4857 4858 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 4859 ipr_cmd->scsi_cmd = scsi_cmd; 4860 ioarcb->res_handle = res->cfgte.res_handle; 4861 ipr_cmd->done = ipr_scsi_done; 4862 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 4863 4864 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 4865 if (scsi_cmd->underflow == 0) 4866 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4867 4868 if (res->needs_sync_complete) { 4869 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 4870 res->needs_sync_complete = 0; 4871 } 4872 4873 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 4874 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 4875 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 4876 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 4877 } 4878 4879 if (scsi_cmd->cmnd[0] >= 0xC0 && 4880 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 4881 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 4882 4883 if (likely(rc == 0)) 4884 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 4885 4886 if (likely(rc == 0)) { 4887 mb(); 4888 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 4889 ioa_cfg->regs.ioarrin_reg); 4890 } else { 4891 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4892 return SCSI_MLQUEUE_HOST_BUSY; 4893 } 4894 4895 return 0; 4896} 4897 4898/** 4899 * ipr_ioctl - IOCTL handler 4900 * @sdev: scsi device struct 4901 * @cmd: IOCTL cmd 4902 * @arg: IOCTL arg 4903 * 4904 * Return value: 4905 * 0 on success / other on failure 4906 **/ 4907static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 4908{ 4909 struct ipr_resource_entry *res; 4910 4911 res = (struct ipr_resource_entry *)sdev->hostdata; 4912 if (res && ipr_is_gata(res)) { 4913 if (cmd == HDIO_GET_IDENTITY) 4914 return -ENOTTY; 4915 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 4916 } 4917 4918 return -EINVAL; 4919} 4920 4921/** 4922 * ipr_info - Get information about the card/driver 4923 * @scsi_host: scsi host struct 4924 * 4925 * Return value: 4926 * pointer to buffer with description string 4927 **/ 4928static const char * ipr_ioa_info(struct Scsi_Host *host) 4929{ 4930 static char buffer[512]; 4931 struct ipr_ioa_cfg *ioa_cfg; 4932 unsigned long lock_flags = 0; 4933 4934 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 4935 4936 spin_lock_irqsave(host->host_lock, lock_flags); 4937 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 4938 spin_unlock_irqrestore(host->host_lock, lock_flags); 4939 4940 return buffer; 4941} 4942 4943static struct scsi_host_template driver_template = { 4944 .module = THIS_MODULE, 4945 .name = "IPR", 4946 .info = ipr_ioa_info, 4947 .ioctl = ipr_ioctl, 4948 .queuecommand = ipr_queuecommand, 4949 .eh_abort_handler = ipr_eh_abort, 4950 .eh_device_reset_handler = ipr_eh_dev_reset, 4951 .eh_host_reset_handler = ipr_eh_host_reset, 4952 .slave_alloc = ipr_slave_alloc, 4953 .slave_configure = ipr_slave_configure, 4954 .slave_destroy = ipr_slave_destroy, 4955 .target_alloc = ipr_target_alloc, 4956 .target_destroy = ipr_target_destroy, 4957 .change_queue_depth = ipr_change_queue_depth, 4958 .change_queue_type = ipr_change_queue_type, 4959 .bios_param = ipr_biosparam, 4960 .can_queue = IPR_MAX_COMMANDS, 4961 .this_id = -1, 4962 .sg_tablesize = IPR_MAX_SGLIST, 4963 .max_sectors = IPR_IOA_MAX_SECTORS, 4964 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 4965 .use_clustering = ENABLE_CLUSTERING, 4966 .shost_attrs = ipr_ioa_attrs, 4967 .sdev_attrs = ipr_dev_attrs, 4968 .proc_name = IPR_NAME 4969}; 4970 4971/** 4972 * ipr_ata_phy_reset - libata phy_reset handler 4973 * @ap: ata port to reset 4974 * 4975 **/ 4976static void ipr_ata_phy_reset(struct ata_port *ap) 4977{ 4978 unsigned long flags; 4979 struct ipr_sata_port *sata_port = ap->private_data; 4980 struct ipr_resource_entry *res = sata_port->res; 4981 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4982 int rc; 4983 4984 ENTER; 4985 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 4986 while(ioa_cfg->in_reset_reload) { 4987 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 4988 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4989 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 4990 } 4991 4992 if (!ioa_cfg->allow_cmds) 4993 goto out_unlock; 4994 4995 rc = ipr_device_reset(ioa_cfg, res); 4996 4997 if (rc) { 4998 ata_port_disable(ap); 4999 goto out_unlock; 5000 } 5001 5002 switch(res->cfgte.proto) { 5003 case IPR_PROTO_SATA: 5004 case IPR_PROTO_SAS_STP: 5005 ap->link.device[0].class = ATA_DEV_ATA; 5006 break; 5007 case IPR_PROTO_SATA_ATAPI: 5008 case IPR_PROTO_SAS_STP_ATAPI: 5009 ap->link.device[0].class = ATA_DEV_ATAPI; 5010 break; 5011 default: 5012 ap->link.device[0].class = ATA_DEV_UNKNOWN; 5013 ata_port_disable(ap); 5014 break; 5015 }; 5016 5017out_unlock: 5018 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5019 LEAVE; 5020} 5021 5022/** 5023 * ipr_ata_post_internal - Cleanup after an internal command 5024 * @qc: ATA queued command 5025 * 5026 * Return value: 5027 * none 5028 **/ 5029static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5030{ 5031 struct ipr_sata_port *sata_port = qc->ap->private_data; 5032 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5033 struct ipr_cmnd *ipr_cmd; 5034 unsigned long flags; 5035 5036 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5037 while(ioa_cfg->in_reset_reload) { 5038 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5039 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5040 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5041 } 5042 5043 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5044 if (ipr_cmd->qc == qc) { 5045 ipr_device_reset(ioa_cfg, sata_port->res); 5046 break; 5047 } 5048 } 5049 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5050} 5051 5052/** 5053 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5054 * @regs: destination 5055 * @tf: source ATA taskfile 5056 * 5057 * Return value: 5058 * none 5059 **/ 5060static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5061 struct ata_taskfile *tf) 5062{ 5063 regs->feature = tf->feature; 5064 regs->nsect = tf->nsect; 5065 regs->lbal = tf->lbal; 5066 regs->lbam = tf->lbam; 5067 regs->lbah = tf->lbah; 5068 regs->device = tf->device; 5069 regs->command = tf->command; 5070 regs->hob_feature = tf->hob_feature; 5071 regs->hob_nsect = tf->hob_nsect; 5072 regs->hob_lbal = tf->hob_lbal; 5073 regs->hob_lbam = tf->hob_lbam; 5074 regs->hob_lbah = tf->hob_lbah; 5075 regs->ctl = tf->ctl; 5076} 5077 5078/** 5079 * ipr_sata_done - done function for SATA commands 5080 * @ipr_cmd: ipr command struct 5081 * 5082 * This function is invoked by the interrupt handler for 5083 * ops generated by the SCSI mid-layer to SATA devices 5084 * 5085 * Return value: 5086 * none 5087 **/ 5088static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5089{ 5090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5091 struct ata_queued_cmd *qc = ipr_cmd->qc; 5092 struct ipr_sata_port *sata_port = qc->ap->private_data; 5093 struct ipr_resource_entry *res = sata_port->res; 5094 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5095 5096 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 5097 sizeof(struct ipr_ioasa_gata)); 5098 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5099 5100 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5101 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus, 5102 res->cfgte.res_addr.target); 5103 5104 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5105 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5106 else 5107 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5108 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5109 ata_qc_complete(qc); 5110} 5111 5112/** 5113 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5114 * @ipr_cmd: ipr command struct 5115 * @qc: ATA queued command 5116 * 5117 **/ 5118static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5119 struct ata_queued_cmd *qc) 5120{ 5121 u32 ioadl_flags = 0; 5122 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5123 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5124 struct ipr_ioadl_desc *last_ioadl = NULL; 5125 int len = qc->nbytes; 5126 struct scatterlist *sg; 5127 unsigned int si; 5128 5129 if (len == 0) 5130 return; 5131 5132 if (qc->dma_dir == DMA_TO_DEVICE) { 5133 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5134 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5135 ioarcb->write_data_transfer_length = cpu_to_be32(len); 5136 ioarcb->write_ioadl_len = 5137 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5138 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5139 ioadl_flags = IPR_IOADL_FLAGS_READ; 5140 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5141 ioarcb->read_ioadl_len = 5142 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5143 } 5144 5145 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5146 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5147 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5148 5149 last_ioadl = ioadl; 5150 ioadl++; 5151 } 5152 5153 if (likely(last_ioadl)) 5154 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5155} 5156 5157/** 5158 * ipr_qc_issue - Issue a SATA qc to a device 5159 * @qc: queued command 5160 * 5161 * Return value: 5162 * 0 if success 5163 **/ 5164static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5165{ 5166 struct ata_port *ap = qc->ap; 5167 struct ipr_sata_port *sata_port = ap->private_data; 5168 struct ipr_resource_entry *res = sata_port->res; 5169 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5170 struct ipr_cmnd *ipr_cmd; 5171 struct ipr_ioarcb *ioarcb; 5172 struct ipr_ioarcb_ata_regs *regs; 5173 5174 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5175 return AC_ERR_SYSTEM; 5176 5177 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5178 ioarcb = &ipr_cmd->ioarcb; 5179 regs = &ioarcb->add_data.u.regs; 5180 5181 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); 5182 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); 5183 5184 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5185 ipr_cmd->qc = qc; 5186 ipr_cmd->done = ipr_sata_done; 5187 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 5188 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 5189 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5190 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5191 ipr_cmd->dma_use_sg = qc->n_elem; 5192 5193 ipr_build_ata_ioadl(ipr_cmd, qc); 5194 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5195 ipr_copy_sata_tf(regs, &qc->tf); 5196 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 5197 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 5198 5199 switch (qc->tf.protocol) { 5200 case ATA_PROT_NODATA: 5201 case ATA_PROT_PIO: 5202 break; 5203 5204 case ATA_PROT_DMA: 5205 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5206 break; 5207 5208 case ATAPI_PROT_PIO: 5209 case ATAPI_PROT_NODATA: 5210 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5211 break; 5212 5213 case ATAPI_PROT_DMA: 5214 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5215 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5216 break; 5217 5218 default: 5219 WARN_ON(1); 5220 return AC_ERR_INVALID; 5221 } 5222 5223 mb(); 5224 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), 5225 ioa_cfg->regs.ioarrin_reg); 5226 return 0; 5227} 5228 5229/** 5230 * ipr_qc_fill_rtf - Read result TF 5231 * @qc: ATA queued command 5232 * 5233 * Return value: 5234 * true 5235 **/ 5236static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 5237{ 5238 struct ipr_sata_port *sata_port = qc->ap->private_data; 5239 struct ipr_ioasa_gata *g = &sata_port->ioasa; 5240 struct ata_taskfile *tf = &qc->result_tf; 5241 5242 tf->feature = g->error; 5243 tf->nsect = g->nsect; 5244 tf->lbal = g->lbal; 5245 tf->lbam = g->lbam; 5246 tf->lbah = g->lbah; 5247 tf->device = g->device; 5248 tf->command = g->status; 5249 tf->hob_nsect = g->hob_nsect; 5250 tf->hob_lbal = g->hob_lbal; 5251 tf->hob_lbam = g->hob_lbam; 5252 tf->hob_lbah = g->hob_lbah; 5253 tf->ctl = g->alt_status; 5254 5255 return true; 5256} 5257 5258static struct ata_port_operations ipr_sata_ops = { 5259 .phy_reset = ipr_ata_phy_reset, 5260 .hardreset = ipr_sata_reset, 5261 .post_internal_cmd = ipr_ata_post_internal, 5262 .qc_prep = ata_noop_qc_prep, 5263 .qc_issue = ipr_qc_issue, 5264 .qc_fill_rtf = ipr_qc_fill_rtf, 5265 .port_start = ata_sas_port_start, 5266 .port_stop = ata_sas_port_stop 5267}; 5268 5269static struct ata_port_info sata_port_info = { 5270 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 5271 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 5272 .pio_mask = 0x10, /* pio4 */ 5273 .mwdma_mask = 0x07, 5274 .udma_mask = 0x7f, /* udma0-6 */ 5275 .port_ops = &ipr_sata_ops 5276}; 5277 5278#ifdef CONFIG_PPC_PSERIES 5279static const u16 ipr_blocked_processors[] = { 5280 PV_NORTHSTAR, 5281 PV_PULSAR, 5282 PV_POWER4, 5283 PV_ICESTAR, 5284 PV_SSTAR, 5285 PV_POWER4p, 5286 PV_630, 5287 PV_630p 5288}; 5289 5290/** 5291 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 5292 * @ioa_cfg: ioa cfg struct 5293 * 5294 * Adapters that use Gemstone revision < 3.1 do not work reliably on 5295 * certain pSeries hardware. This function determines if the given 5296 * adapter is in one of these confgurations or not. 5297 * 5298 * Return value: 5299 * 1 if adapter is not supported / 0 if adapter is supported 5300 **/ 5301static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 5302{ 5303 int i; 5304 5305 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 5306 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 5307 if (__is_processor(ipr_blocked_processors[i])) 5308 return 1; 5309 } 5310 } 5311 return 0; 5312} 5313#else 5314#define ipr_invalid_adapter(ioa_cfg) 0 5315#endif 5316 5317/** 5318 * ipr_ioa_bringdown_done - IOA bring down completion. 5319 * @ipr_cmd: ipr command struct 5320 * 5321 * This function processes the completion of an adapter bring down. 5322 * It wakes any reset sleepers. 5323 * 5324 * Return value: 5325 * IPR_RC_JOB_RETURN 5326 **/ 5327static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 5328{ 5329 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5330 5331 ENTER; 5332 ioa_cfg->in_reset_reload = 0; 5333 ioa_cfg->reset_retries = 0; 5334 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5335 wake_up_all(&ioa_cfg->reset_wait_q); 5336 5337 spin_unlock_irq(ioa_cfg->host->host_lock); 5338 scsi_unblock_requests(ioa_cfg->host); 5339 spin_lock_irq(ioa_cfg->host->host_lock); 5340 LEAVE; 5341 5342 return IPR_RC_JOB_RETURN; 5343} 5344 5345/** 5346 * ipr_ioa_reset_done - IOA reset completion. 5347 * @ipr_cmd: ipr command struct 5348 * 5349 * This function processes the completion of an adapter reset. 5350 * It schedules any necessary mid-layer add/removes and 5351 * wakes any reset sleepers. 5352 * 5353 * Return value: 5354 * IPR_RC_JOB_RETURN 5355 **/ 5356static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 5357{ 5358 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5359 struct ipr_resource_entry *res; 5360 struct ipr_hostrcb *hostrcb, *temp; 5361 int i = 0; 5362 5363 ENTER; 5364 ioa_cfg->in_reset_reload = 0; 5365 ioa_cfg->allow_cmds = 1; 5366 ioa_cfg->reset_cmd = NULL; 5367 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 5368 5369 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 5370 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 5371 ipr_trace; 5372 break; 5373 } 5374 } 5375 schedule_work(&ioa_cfg->work_q); 5376 5377 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 5378 list_del(&hostrcb->queue); 5379 if (i++ < IPR_NUM_LOG_HCAMS) 5380 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 5381 else 5382 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 5383 } 5384 5385 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 5386 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 5387 5388 ioa_cfg->reset_retries = 0; 5389 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5390 wake_up_all(&ioa_cfg->reset_wait_q); 5391 5392 spin_unlock(ioa_cfg->host->host_lock); 5393 scsi_unblock_requests(ioa_cfg->host); 5394 spin_lock(ioa_cfg->host->host_lock); 5395 5396 if (!ioa_cfg->allow_cmds) 5397 scsi_block_requests(ioa_cfg->host); 5398 5399 LEAVE; 5400 return IPR_RC_JOB_RETURN; 5401} 5402 5403/** 5404 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 5405 * @supported_dev: supported device struct 5406 * @vpids: vendor product id struct 5407 * 5408 * Return value: 5409 * none 5410 **/ 5411static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 5412 struct ipr_std_inq_vpids *vpids) 5413{ 5414 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 5415 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 5416 supported_dev->num_records = 1; 5417 supported_dev->data_length = 5418 cpu_to_be16(sizeof(struct ipr_supported_device)); 5419 supported_dev->reserved = 0; 5420} 5421 5422/** 5423 * ipr_set_supported_devs - Send Set Supported Devices for a device 5424 * @ipr_cmd: ipr command struct 5425 * 5426 * This function send a Set Supported Devices to the adapter 5427 * 5428 * Return value: 5429 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5430 **/ 5431static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 5432{ 5433 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5434 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 5435 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5436 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5437 struct ipr_resource_entry *res = ipr_cmd->u.res; 5438 5439 ipr_cmd->job_step = ipr_ioa_reset_done; 5440 5441 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 5442 if (!ipr_is_scsi_disk(res)) 5443 continue; 5444 5445 ipr_cmd->u.res = res; 5446 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); 5447 5448 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5449 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5450 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5451 5452 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 5453 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 5454 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 5455 5456 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | 5457 sizeof(struct ipr_supported_device)); 5458 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + 5459 offsetof(struct ipr_misc_cbs, supp_dev)); 5460 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5461 ioarcb->write_data_transfer_length = 5462 cpu_to_be32(sizeof(struct ipr_supported_device)); 5463 5464 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 5465 IPR_SET_SUP_DEVICE_TIMEOUT); 5466 5467 ipr_cmd->job_step = ipr_set_supported_devs; 5468 return IPR_RC_JOB_RETURN; 5469 } 5470 5471 return IPR_RC_JOB_CONTINUE; 5472} 5473 5474/** 5475 * ipr_setup_write_cache - Disable write cache if needed 5476 * @ipr_cmd: ipr command struct 5477 * 5478 * This function sets up adapters write cache to desired setting 5479 * 5480 * Return value: 5481 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5482 **/ 5483static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) 5484{ 5485 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5486 5487 ipr_cmd->job_step = ipr_set_supported_devs; 5488 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 5489 struct ipr_resource_entry, queue); 5490 5491 if (ioa_cfg->cache_state != CACHE_DISABLED) 5492 return IPR_RC_JOB_CONTINUE; 5493 5494 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5495 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5496 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 5497 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 5498 5499 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5500 5501 return IPR_RC_JOB_RETURN; 5502} 5503 5504/** 5505 * ipr_get_mode_page - Locate specified mode page 5506 * @mode_pages: mode page buffer 5507 * @page_code: page code to find 5508 * @len: minimum required length for mode page 5509 * 5510 * Return value: 5511 * pointer to mode page / NULL on failure 5512 **/ 5513static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 5514 u32 page_code, u32 len) 5515{ 5516 struct ipr_mode_page_hdr *mode_hdr; 5517 u32 page_length; 5518 u32 length; 5519 5520 if (!mode_pages || (mode_pages->hdr.length == 0)) 5521 return NULL; 5522 5523 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 5524 mode_hdr = (struct ipr_mode_page_hdr *) 5525 (mode_pages->data + mode_pages->hdr.block_desc_len); 5526 5527 while (length) { 5528 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 5529 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 5530 return mode_hdr; 5531 break; 5532 } else { 5533 page_length = (sizeof(struct ipr_mode_page_hdr) + 5534 mode_hdr->page_length); 5535 length -= page_length; 5536 mode_hdr = (struct ipr_mode_page_hdr *) 5537 ((unsigned long)mode_hdr + page_length); 5538 } 5539 } 5540 return NULL; 5541} 5542 5543/** 5544 * ipr_check_term_power - Check for term power errors 5545 * @ioa_cfg: ioa config struct 5546 * @mode_pages: IOAFP mode pages buffer 5547 * 5548 * Check the IOAFP's mode page 28 for term power errors 5549 * 5550 * Return value: 5551 * nothing 5552 **/ 5553static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 5554 struct ipr_mode_pages *mode_pages) 5555{ 5556 int i; 5557 int entry_length; 5558 struct ipr_dev_bus_entry *bus; 5559 struct ipr_mode_page28 *mode_page; 5560 5561 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5562 sizeof(struct ipr_mode_page28)); 5563 5564 entry_length = mode_page->entry_length; 5565 5566 bus = mode_page->bus; 5567 5568 for (i = 0; i < mode_page->num_entries; i++) { 5569 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 5570 dev_err(&ioa_cfg->pdev->dev, 5571 "Term power is absent on scsi bus %d\n", 5572 bus->res_addr.bus); 5573 } 5574 5575 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 5576 } 5577} 5578 5579/** 5580 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 5581 * @ioa_cfg: ioa config struct 5582 * 5583 * Looks through the config table checking for SES devices. If 5584 * the SES device is in the SES table indicating a maximum SCSI 5585 * bus speed, the speed is limited for the bus. 5586 * 5587 * Return value: 5588 * none 5589 **/ 5590static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 5591{ 5592 u32 max_xfer_rate; 5593 int i; 5594 5595 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 5596 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 5597 ioa_cfg->bus_attr[i].bus_width); 5598 5599 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 5600 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 5601 } 5602} 5603 5604/** 5605 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 5606 * @ioa_cfg: ioa config struct 5607 * @mode_pages: mode page 28 buffer 5608 * 5609 * Updates mode page 28 based on driver configuration 5610 * 5611 * Return value: 5612 * none 5613 **/ 5614static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 5615 struct ipr_mode_pages *mode_pages) 5616{ 5617 int i, entry_length; 5618 struct ipr_dev_bus_entry *bus; 5619 struct ipr_bus_attributes *bus_attr; 5620 struct ipr_mode_page28 *mode_page; 5621 5622 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5623 sizeof(struct ipr_mode_page28)); 5624 5625 entry_length = mode_page->entry_length; 5626 5627 /* Loop for each device bus entry */ 5628 for (i = 0, bus = mode_page->bus; 5629 i < mode_page->num_entries; 5630 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 5631 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 5632 dev_err(&ioa_cfg->pdev->dev, 5633 "Invalid resource address reported: 0x%08X\n", 5634 IPR_GET_PHYS_LOC(bus->res_addr)); 5635 continue; 5636 } 5637 5638 bus_attr = &ioa_cfg->bus_attr[i]; 5639 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 5640 bus->bus_width = bus_attr->bus_width; 5641 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 5642 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 5643 if (bus_attr->qas_enabled) 5644 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 5645 else 5646 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 5647 } 5648} 5649 5650/** 5651 * ipr_build_mode_select - Build a mode select command 5652 * @ipr_cmd: ipr command struct 5653 * @res_handle: resource handle to send command to 5654 * @parm: Byte 2 of Mode Sense command 5655 * @dma_addr: DMA buffer address 5656 * @xfer_len: data transfer length 5657 * 5658 * Return value: 5659 * none 5660 **/ 5661static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 5662 __be32 res_handle, u8 parm, u32 dma_addr, 5663 u8 xfer_len) 5664{ 5665 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5666 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5667 5668 ioarcb->res_handle = res_handle; 5669 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5670 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5671 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 5672 ioarcb->cmd_pkt.cdb[1] = parm; 5673 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5674 5675 ioadl->flags_and_data_len = 5676 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); 5677 ioadl->address = cpu_to_be32(dma_addr); 5678 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5679 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); 5680} 5681 5682/** 5683 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 5684 * @ipr_cmd: ipr command struct 5685 * 5686 * This function sets up the SCSI bus attributes and sends 5687 * a Mode Select for Page 28 to activate them. 5688 * 5689 * Return value: 5690 * IPR_RC_JOB_RETURN 5691 **/ 5692static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 5693{ 5694 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5695 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5696 int length; 5697 5698 ENTER; 5699 ipr_scsi_bus_speed_limit(ioa_cfg); 5700 ipr_check_term_power(ioa_cfg, mode_pages); 5701 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 5702 length = mode_pages->hdr.length + 1; 5703 mode_pages->hdr.length = 0; 5704 5705 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5706 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5707 length); 5708 5709 ipr_cmd->job_step = ipr_setup_write_cache; 5710 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5711 5712 LEAVE; 5713 return IPR_RC_JOB_RETURN; 5714} 5715 5716/** 5717 * ipr_build_mode_sense - Builds a mode sense command 5718 * @ipr_cmd: ipr command struct 5719 * @res: resource entry struct 5720 * @parm: Byte 2 of mode sense command 5721 * @dma_addr: DMA address of mode sense buffer 5722 * @xfer_len: Size of DMA buffer 5723 * 5724 * Return value: 5725 * none 5726 **/ 5727static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 5728 __be32 res_handle, 5729 u8 parm, u32 dma_addr, u8 xfer_len) 5730{ 5731 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5732 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5733 5734 ioarcb->res_handle = res_handle; 5735 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 5736 ioarcb->cmd_pkt.cdb[2] = parm; 5737 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5738 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5739 5740 ioadl->flags_and_data_len = 5741 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 5742 ioadl->address = cpu_to_be32(dma_addr); 5743 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5744 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 5745} 5746 5747/** 5748 * ipr_reset_cmd_failed - Handle failure of IOA reset command 5749 * @ipr_cmd: ipr command struct 5750 * 5751 * This function handles the failure of an IOA bringup command. 5752 * 5753 * Return value: 5754 * IPR_RC_JOB_RETURN 5755 **/ 5756static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 5757{ 5758 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5759 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5760 5761 dev_err(&ioa_cfg->pdev->dev, 5762 "0x%02X failed with IOASC: 0x%08X\n", 5763 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 5764 5765 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5766 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5767 return IPR_RC_JOB_RETURN; 5768} 5769 5770/** 5771 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 5772 * @ipr_cmd: ipr command struct 5773 * 5774 * This function handles the failure of a Mode Sense to the IOAFP. 5775 * Some adapters do not handle all mode pages. 5776 * 5777 * Return value: 5778 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5779 **/ 5780static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 5781{ 5782 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5783 5784 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5785 ipr_cmd->job_step = ipr_setup_write_cache; 5786 return IPR_RC_JOB_CONTINUE; 5787 } 5788 5789 return ipr_reset_cmd_failed(ipr_cmd); 5790} 5791 5792/** 5793 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 5794 * @ipr_cmd: ipr command struct 5795 * 5796 * This function send a Page 28 mode sense to the IOA to 5797 * retrieve SCSI bus attributes. 5798 * 5799 * Return value: 5800 * IPR_RC_JOB_RETURN 5801 **/ 5802static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 5803{ 5804 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5805 5806 ENTER; 5807 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5808 0x28, ioa_cfg->vpd_cbs_dma + 5809 offsetof(struct ipr_misc_cbs, mode_pages), 5810 sizeof(struct ipr_mode_pages)); 5811 5812 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 5813 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 5814 5815 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5816 5817 LEAVE; 5818 return IPR_RC_JOB_RETURN; 5819} 5820 5821/** 5822 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 5823 * @ipr_cmd: ipr command struct 5824 * 5825 * This function enables dual IOA RAID support if possible. 5826 * 5827 * Return value: 5828 * IPR_RC_JOB_RETURN 5829 **/ 5830static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 5831{ 5832 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5833 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5834 struct ipr_mode_page24 *mode_page; 5835 int length; 5836 5837 ENTER; 5838 mode_page = ipr_get_mode_page(mode_pages, 0x24, 5839 sizeof(struct ipr_mode_page24)); 5840 5841 if (mode_page) 5842 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 5843 5844 length = mode_pages->hdr.length + 1; 5845 mode_pages->hdr.length = 0; 5846 5847 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5848 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5849 length); 5850 5851 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5852 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5853 5854 LEAVE; 5855 return IPR_RC_JOB_RETURN; 5856} 5857 5858/** 5859 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 5860 * @ipr_cmd: ipr command struct 5861 * 5862 * This function handles the failure of a Mode Sense to the IOAFP. 5863 * Some adapters do not handle all mode pages. 5864 * 5865 * Return value: 5866 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5867 **/ 5868static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 5869{ 5870 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5871 5872 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5873 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5874 return IPR_RC_JOB_CONTINUE; 5875 } 5876 5877 return ipr_reset_cmd_failed(ipr_cmd); 5878} 5879 5880/** 5881 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 5882 * @ipr_cmd: ipr command struct 5883 * 5884 * This function send a mode sense to the IOA to retrieve 5885 * the IOA Advanced Function Control mode page. 5886 * 5887 * Return value: 5888 * IPR_RC_JOB_RETURN 5889 **/ 5890static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 5891{ 5892 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5893 5894 ENTER; 5895 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5896 0x24, ioa_cfg->vpd_cbs_dma + 5897 offsetof(struct ipr_misc_cbs, mode_pages), 5898 sizeof(struct ipr_mode_pages)); 5899 5900 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 5901 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 5902 5903 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5904 5905 LEAVE; 5906 return IPR_RC_JOB_RETURN; 5907} 5908 5909/** 5910 * ipr_init_res_table - Initialize the resource table 5911 * @ipr_cmd: ipr command struct 5912 * 5913 * This function looks through the existing resource table, comparing 5914 * it with the config table. This function will take care of old/new 5915 * devices and schedule adding/removing them from the mid-layer 5916 * as appropriate. 5917 * 5918 * Return value: 5919 * IPR_RC_JOB_CONTINUE 5920 **/ 5921static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 5922{ 5923 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5924 struct ipr_resource_entry *res, *temp; 5925 struct ipr_config_table_entry *cfgte; 5926 int found, i; 5927 LIST_HEAD(old_res); 5928 5929 ENTER; 5930 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) 5931 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 5932 5933 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 5934 list_move_tail(&res->queue, &old_res); 5935 5936 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { 5937 cfgte = &ioa_cfg->cfg_table->dev[i]; 5938 found = 0; 5939 5940 list_for_each_entry_safe(res, temp, &old_res, queue) { 5941 if (!memcmp(&res->cfgte.res_addr, 5942 &cfgte->res_addr, sizeof(cfgte->res_addr))) { 5943 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5944 found = 1; 5945 break; 5946 } 5947 } 5948 5949 if (!found) { 5950 if (list_empty(&ioa_cfg->free_res_q)) { 5951 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 5952 break; 5953 } 5954 5955 found = 1; 5956 res = list_entry(ioa_cfg->free_res_q.next, 5957 struct ipr_resource_entry, queue); 5958 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5959 ipr_init_res_entry(res); 5960 res->add_to_ml = 1; 5961 } 5962 5963 if (found) 5964 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 5965 } 5966 5967 list_for_each_entry_safe(res, temp, &old_res, queue) { 5968 if (res->sdev) { 5969 res->del_from_ml = 1; 5970 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 5971 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5972 } else { 5973 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 5974 } 5975 } 5976 5977 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 5978 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 5979 else 5980 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5981 5982 LEAVE; 5983 return IPR_RC_JOB_CONTINUE; 5984} 5985 5986/** 5987 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 5988 * @ipr_cmd: ipr command struct 5989 * 5990 * This function sends a Query IOA Configuration command 5991 * to the adapter to retrieve the IOA configuration table. 5992 * 5993 * Return value: 5994 * IPR_RC_JOB_RETURN 5995 **/ 5996static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 5997{ 5998 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5999 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6000 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6001 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6002 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6003 6004 ENTER; 6005 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6006 ioa_cfg->dual_raid = 1; 6007 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6008 ucode_vpd->major_release, ucode_vpd->card_type, 6009 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6010 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6011 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6012 6013 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6014 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; 6015 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; 6016 6017 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6018 ioarcb->read_data_transfer_length = 6019 cpu_to_be32(sizeof(struct ipr_config_table)); 6020 6021 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); 6022 ioadl->flags_and_data_len = 6023 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); 6024 6025 ipr_cmd->job_step = ipr_init_res_table; 6026 6027 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6028 6029 LEAVE; 6030 return IPR_RC_JOB_RETURN; 6031} 6032 6033/** 6034 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6035 * @ipr_cmd: ipr command struct 6036 * 6037 * This utility function sends an inquiry to the adapter. 6038 * 6039 * Return value: 6040 * none 6041 **/ 6042static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6043 u32 dma_addr, u8 xfer_len) 6044{ 6045 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6046 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6047 6048 ENTER; 6049 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6050 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6051 6052 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6053 ioarcb->cmd_pkt.cdb[1] = flags; 6054 ioarcb->cmd_pkt.cdb[2] = page; 6055 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6056 6057 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6058 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 6059 6060 ioadl->address = cpu_to_be32(dma_addr); 6061 ioadl->flags_and_data_len = 6062 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 6063 6064 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6065 LEAVE; 6066} 6067 6068/** 6069 * ipr_inquiry_page_supported - Is the given inquiry page supported 6070 * @page0: inquiry page 0 buffer 6071 * @page: page code. 6072 * 6073 * This function determines if the specified inquiry page is supported. 6074 * 6075 * Return value: 6076 * 1 if page is supported / 0 if not 6077 **/ 6078static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6079{ 6080 int i; 6081 6082 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6083 if (page0->page[i] == page) 6084 return 1; 6085 6086 return 0; 6087} 6088 6089/** 6090 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6091 * @ipr_cmd: ipr command struct 6092 * 6093 * This function sends a Page 0xD0 inquiry to the adapter 6094 * to retrieve adapter capabilities. 6095 * 6096 * Return value: 6097 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6098 **/ 6099static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6100{ 6101 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6102 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6103 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6104 6105 ENTER; 6106 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6107 memset(cap, 0, sizeof(*cap)); 6108 6109 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6110 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6111 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6112 sizeof(struct ipr_inquiry_cap)); 6113 return IPR_RC_JOB_RETURN; 6114 } 6115 6116 LEAVE; 6117 return IPR_RC_JOB_CONTINUE; 6118} 6119 6120/** 6121 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6122 * @ipr_cmd: ipr command struct 6123 * 6124 * This function sends a Page 3 inquiry to the adapter 6125 * to retrieve software VPD information. 6126 * 6127 * Return value: 6128 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6129 **/ 6130static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6131{ 6132 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6133 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6134 6135 ENTER; 6136 6137 if (!ipr_inquiry_page_supported(page0, 1)) 6138 ioa_cfg->cache_state = CACHE_NONE; 6139 6140 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6141 6142 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6143 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6144 sizeof(struct ipr_inquiry_page3)); 6145 6146 LEAVE; 6147 return IPR_RC_JOB_RETURN; 6148} 6149 6150/** 6151 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6152 * @ipr_cmd: ipr command struct 6153 * 6154 * This function sends a Page 0 inquiry to the adapter 6155 * to retrieve supported inquiry pages. 6156 * 6157 * Return value: 6158 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6159 **/ 6160static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6161{ 6162 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6163 char type[5]; 6164 6165 ENTER; 6166 6167 /* Grab the type out of the VPD and store it away */ 6168 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6169 type[4] = '\0'; 6170 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6171 6172 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6173 6174 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6175 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6176 sizeof(struct ipr_inquiry_page0)); 6177 6178 LEAVE; 6179 return IPR_RC_JOB_RETURN; 6180} 6181 6182/** 6183 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6184 * @ipr_cmd: ipr command struct 6185 * 6186 * This function sends a standard inquiry to the adapter. 6187 * 6188 * Return value: 6189 * IPR_RC_JOB_RETURN 6190 **/ 6191static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6192{ 6193 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6194 6195 ENTER; 6196 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6197 6198 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6199 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6200 sizeof(struct ipr_ioa_vpd)); 6201 6202 LEAVE; 6203 return IPR_RC_JOB_RETURN; 6204} 6205 6206/** 6207 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. 6208 * @ipr_cmd: ipr command struct 6209 * 6210 * This function send an Identify Host Request Response Queue 6211 * command to establish the HRRQ with the adapter. 6212 * 6213 * Return value: 6214 * IPR_RC_JOB_RETURN 6215 **/ 6216static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) 6217{ 6218 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6219 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6220 6221 ENTER; 6222 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 6223 6224 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 6225 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6226 6227 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6228 ioarcb->cmd_pkt.cdb[2] = 6229 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; 6230 ioarcb->cmd_pkt.cdb[3] = 6231 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; 6232 ioarcb->cmd_pkt.cdb[4] = 6233 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; 6234 ioarcb->cmd_pkt.cdb[5] = 6235 ((u32) ioa_cfg->host_rrq_dma) & 0xff; 6236 ioarcb->cmd_pkt.cdb[7] = 6237 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 6238 ioarcb->cmd_pkt.cdb[8] = 6239 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 6240 6241 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 6242 6243 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6244 6245 LEAVE; 6246 return IPR_RC_JOB_RETURN; 6247} 6248 6249/** 6250 * ipr_reset_timer_done - Adapter reset timer function 6251 * @ipr_cmd: ipr command struct 6252 * 6253 * Description: This function is used in adapter reset processing 6254 * for timing events. If the reset_cmd pointer in the IOA 6255 * config struct is not this adapter's we are doing nested 6256 * resets and fail_all_ops will take care of freeing the 6257 * command block. 6258 * 6259 * Return value: 6260 * none 6261 **/ 6262static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 6263{ 6264 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6265 unsigned long lock_flags = 0; 6266 6267 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 6268 6269 if (ioa_cfg->reset_cmd == ipr_cmd) { 6270 list_del(&ipr_cmd->queue); 6271 ipr_cmd->done(ipr_cmd); 6272 } 6273 6274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 6275} 6276 6277/** 6278 * ipr_reset_start_timer - Start a timer for adapter reset job 6279 * @ipr_cmd: ipr command struct 6280 * @timeout: timeout value 6281 * 6282 * Description: This function is used in adapter reset processing 6283 * for timing events. If the reset_cmd pointer in the IOA 6284 * config struct is not this adapter's we are doing nested 6285 * resets and fail_all_ops will take care of freeing the 6286 * command block. 6287 * 6288 * Return value: 6289 * none 6290 **/ 6291static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 6292 unsigned long timeout) 6293{ 6294 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6295 ipr_cmd->done = ipr_reset_ioa_job; 6296 6297 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6298 ipr_cmd->timer.expires = jiffies + timeout; 6299 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 6300 add_timer(&ipr_cmd->timer); 6301} 6302 6303/** 6304 * ipr_init_ioa_mem - Initialize ioa_cfg control block 6305 * @ioa_cfg: ioa cfg struct 6306 * 6307 * Return value: 6308 * nothing 6309 **/ 6310static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 6311{ 6312 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 6313 6314 /* Initialize Host RRQ pointers */ 6315 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 6316 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 6317 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 6318 ioa_cfg->toggle_bit = 1; 6319 6320 /* Zero out config table */ 6321 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); 6322} 6323 6324/** 6325 * ipr_reset_enable_ioa - Enable the IOA following a reset. 6326 * @ipr_cmd: ipr command struct 6327 * 6328 * This function reinitializes some control blocks and 6329 * enables destructive diagnostics on the adapter. 6330 * 6331 * Return value: 6332 * IPR_RC_JOB_RETURN 6333 **/ 6334static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 6335{ 6336 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6337 volatile u32 int_reg; 6338 6339 ENTER; 6340 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; 6341 ipr_init_ioa_mem(ioa_cfg); 6342 6343 ioa_cfg->allow_interrupts = 1; 6344 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6345 6346 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 6347 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 6348 ioa_cfg->regs.clr_interrupt_mask_reg); 6349 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6350 return IPR_RC_JOB_CONTINUE; 6351 } 6352 6353 /* Enable destructive diagnostics on IOA */ 6354 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); 6355 6356 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); 6357 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6358 6359 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 6360 6361 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6362 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 6363 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 6364 ipr_cmd->done = ipr_reset_ioa_job; 6365 add_timer(&ipr_cmd->timer); 6366 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6367 6368 LEAVE; 6369 return IPR_RC_JOB_RETURN; 6370} 6371 6372/** 6373 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 6374 * @ipr_cmd: ipr command struct 6375 * 6376 * This function is invoked when an adapter dump has run out 6377 * of processing time. 6378 * 6379 * Return value: 6380 * IPR_RC_JOB_CONTINUE 6381 **/ 6382static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 6383{ 6384 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6385 6386 if (ioa_cfg->sdt_state == GET_DUMP) 6387 ioa_cfg->sdt_state = ABORT_DUMP; 6388 6389 ipr_cmd->job_step = ipr_reset_alert; 6390 6391 return IPR_RC_JOB_CONTINUE; 6392} 6393 6394/** 6395 * ipr_unit_check_no_data - Log a unit check/no data error log 6396 * @ioa_cfg: ioa config struct 6397 * 6398 * Logs an error indicating the adapter unit checked, but for some 6399 * reason, we were unable to fetch the unit check buffer. 6400 * 6401 * Return value: 6402 * nothing 6403 **/ 6404static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 6405{ 6406 ioa_cfg->errors_logged++; 6407 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 6408} 6409 6410/** 6411 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 6412 * @ioa_cfg: ioa config struct 6413 * 6414 * Fetches the unit check buffer from the adapter by clocking the data 6415 * through the mailbox register. 6416 * 6417 * Return value: 6418 * nothing 6419 **/ 6420static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 6421{ 6422 unsigned long mailbox; 6423 struct ipr_hostrcb *hostrcb; 6424 struct ipr_uc_sdt sdt; 6425 int rc, length; 6426 u32 ioasc; 6427 6428 mailbox = readl(ioa_cfg->ioa_mailbox); 6429 6430 if (!ipr_sdt_is_fmt2(mailbox)) { 6431 ipr_unit_check_no_data(ioa_cfg); 6432 return; 6433 } 6434 6435 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 6436 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 6437 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 6438 6439 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || 6440 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { 6441 ipr_unit_check_no_data(ioa_cfg); 6442 return; 6443 } 6444 6445 /* Find length of the first sdt entry (UC buffer) */ 6446 length = (be32_to_cpu(sdt.entry[0].end_offset) - 6447 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; 6448 6449 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 6450 struct ipr_hostrcb, queue); 6451 list_del(&hostrcb->queue); 6452 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 6453 6454 rc = ipr_get_ldump_data_section(ioa_cfg, 6455 be32_to_cpu(sdt.entry[0].bar_str_offset), 6456 (__be32 *)&hostrcb->hcam, 6457 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 6458 6459 if (!rc) { 6460 ipr_handle_log_data(ioa_cfg, hostrcb); 6461 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 6462 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 6463 ioa_cfg->sdt_state == GET_DUMP) 6464 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 6465 } else 6466 ipr_unit_check_no_data(ioa_cfg); 6467 6468 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 6469} 6470 6471/** 6472 * ipr_reset_restore_cfg_space - Restore PCI config space. 6473 * @ipr_cmd: ipr command struct 6474 * 6475 * Description: This function restores the saved PCI config space of 6476 * the adapter, fails all outstanding ops back to the callers, and 6477 * fetches the dump/unit check if applicable to this reset. 6478 * 6479 * Return value: 6480 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6481 **/ 6482static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 6483{ 6484 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6485 int rc; 6486 6487 ENTER; 6488 rc = pci_restore_state(ioa_cfg->pdev); 6489 6490 if (rc != PCIBIOS_SUCCESSFUL) { 6491 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6492 return IPR_RC_JOB_CONTINUE; 6493 } 6494 6495 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 6496 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6497 return IPR_RC_JOB_CONTINUE; 6498 } 6499 6500 ipr_fail_all_ops(ioa_cfg); 6501 6502 if (ioa_cfg->ioa_unit_checked) { 6503 ioa_cfg->ioa_unit_checked = 0; 6504 ipr_get_unit_check_buffer(ioa_cfg); 6505 ipr_cmd->job_step = ipr_reset_alert; 6506 ipr_reset_start_timer(ipr_cmd, 0); 6507 return IPR_RC_JOB_RETURN; 6508 } 6509 6510 if (ioa_cfg->in_ioa_bringdown) { 6511 ipr_cmd->job_step = ipr_ioa_bringdown_done; 6512 } else { 6513 ipr_cmd->job_step = ipr_reset_enable_ioa; 6514 6515 if (GET_DUMP == ioa_cfg->sdt_state) { 6516 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 6517 ipr_cmd->job_step = ipr_reset_wait_for_dump; 6518 schedule_work(&ioa_cfg->work_q); 6519 return IPR_RC_JOB_RETURN; 6520 } 6521 } 6522 6523 ENTER; 6524 return IPR_RC_JOB_CONTINUE; 6525} 6526 6527/** 6528 * ipr_reset_bist_done - BIST has completed on the adapter. 6529 * @ipr_cmd: ipr command struct 6530 * 6531 * Description: Unblock config space and resume the reset process. 6532 * 6533 * Return value: 6534 * IPR_RC_JOB_CONTINUE 6535 **/ 6536static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 6537{ 6538 ENTER; 6539 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6540 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 6541 LEAVE; 6542 return IPR_RC_JOB_CONTINUE; 6543} 6544 6545/** 6546 * ipr_reset_start_bist - Run BIST on the adapter. 6547 * @ipr_cmd: ipr command struct 6548 * 6549 * Description: This function runs BIST on the adapter, then delays 2 seconds. 6550 * 6551 * Return value: 6552 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6553 **/ 6554static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 6555{ 6556 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6557 int rc; 6558 6559 ENTER; 6560 pci_block_user_cfg_access(ioa_cfg->pdev); 6561 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 6562 6563 if (rc != PCIBIOS_SUCCESSFUL) { 6564 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6565 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6566 rc = IPR_RC_JOB_CONTINUE; 6567 } else { 6568 ipr_cmd->job_step = ipr_reset_bist_done; 6569 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6570 rc = IPR_RC_JOB_RETURN; 6571 } 6572 6573 LEAVE; 6574 return rc; 6575} 6576 6577/** 6578 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 6579 * @ipr_cmd: ipr command struct 6580 * 6581 * Description: This clears PCI reset to the adapter and delays two seconds. 6582 * 6583 * Return value: 6584 * IPR_RC_JOB_RETURN 6585 **/ 6586static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 6587{ 6588 ENTER; 6589 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 6590 ipr_cmd->job_step = ipr_reset_bist_done; 6591 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6592 LEAVE; 6593 return IPR_RC_JOB_RETURN; 6594} 6595 6596/** 6597 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 6598 * @ipr_cmd: ipr command struct 6599 * 6600 * Description: This asserts PCI reset to the adapter. 6601 * 6602 * Return value: 6603 * IPR_RC_JOB_RETURN 6604 **/ 6605static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 6606{ 6607 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6608 struct pci_dev *pdev = ioa_cfg->pdev; 6609 6610 ENTER; 6611 pci_block_user_cfg_access(pdev); 6612 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 6613 ipr_cmd->job_step = ipr_reset_slot_reset_done; 6614 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 6615 LEAVE; 6616 return IPR_RC_JOB_RETURN; 6617} 6618 6619/** 6620 * ipr_reset_allowed - Query whether or not IOA can be reset 6621 * @ioa_cfg: ioa config struct 6622 * 6623 * Return value: 6624 * 0 if reset not allowed / non-zero if reset is allowed 6625 **/ 6626static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 6627{ 6628 volatile u32 temp_reg; 6629 6630 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6631 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 6632} 6633 6634/** 6635 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 6636 * @ipr_cmd: ipr command struct 6637 * 6638 * Description: This function waits for adapter permission to run BIST, 6639 * then runs BIST. If the adapter does not give permission after a 6640 * reasonable time, we will reset the adapter anyway. The impact of 6641 * resetting the adapter without warning the adapter is the risk of 6642 * losing the persistent error log on the adapter. If the adapter is 6643 * reset while it is writing to the flash on the adapter, the flash 6644 * segment will have bad ECC and be zeroed. 6645 * 6646 * Return value: 6647 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6648 **/ 6649static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 6650{ 6651 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6652 int rc = IPR_RC_JOB_RETURN; 6653 6654 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 6655 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 6656 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6657 } else { 6658 ipr_cmd->job_step = ioa_cfg->reset; 6659 rc = IPR_RC_JOB_CONTINUE; 6660 } 6661 6662 return rc; 6663} 6664 6665/** 6666 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 6667 * @ipr_cmd: ipr command struct 6668 * 6669 * Description: This function alerts the adapter that it will be reset. 6670 * If memory space is not currently enabled, proceed directly 6671 * to running BIST on the adapter. The timer must always be started 6672 * so we guarantee we do not run BIST from ipr_isr. 6673 * 6674 * Return value: 6675 * IPR_RC_JOB_RETURN 6676 **/ 6677static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 6678{ 6679 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6680 u16 cmd_reg; 6681 int rc; 6682 6683 ENTER; 6684 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 6685 6686 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 6687 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 6688 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); 6689 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 6690 } else { 6691 ipr_cmd->job_step = ioa_cfg->reset; 6692 } 6693 6694 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 6695 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6696 6697 LEAVE; 6698 return IPR_RC_JOB_RETURN; 6699} 6700 6701/** 6702 * ipr_reset_ucode_download_done - Microcode download completion 6703 * @ipr_cmd: ipr command struct 6704 * 6705 * Description: This function unmaps the microcode download buffer. 6706 * 6707 * Return value: 6708 * IPR_RC_JOB_CONTINUE 6709 **/ 6710static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 6711{ 6712 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6713 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6714 6715 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 6716 sglist->num_sg, DMA_TO_DEVICE); 6717 6718 ipr_cmd->job_step = ipr_reset_alert; 6719 return IPR_RC_JOB_CONTINUE; 6720} 6721 6722/** 6723 * ipr_reset_ucode_download - Download microcode to the adapter 6724 * @ipr_cmd: ipr command struct 6725 * 6726 * Description: This function checks to see if it there is microcode 6727 * to download to the adapter. If there is, a download is performed. 6728 * 6729 * Return value: 6730 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6731 **/ 6732static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 6733{ 6734 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6735 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6736 6737 ENTER; 6738 ipr_cmd->job_step = ipr_reset_alert; 6739 6740 if (!sglist) 6741 return IPR_RC_JOB_CONTINUE; 6742 6743 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6744 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6745 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 6746 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 6747 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 6748 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 6749 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 6750 6751 ipr_build_ucode_ioadl(ipr_cmd, sglist); 6752 ipr_cmd->job_step = ipr_reset_ucode_download_done; 6753 6754 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6755 IPR_WRITE_BUFFER_TIMEOUT); 6756 6757 LEAVE; 6758 return IPR_RC_JOB_RETURN; 6759} 6760 6761/** 6762 * ipr_reset_shutdown_ioa - Shutdown the adapter 6763 * @ipr_cmd: ipr command struct 6764 * 6765 * Description: This function issues an adapter shutdown of the 6766 * specified type to the specified adapter as part of the 6767 * adapter reset job. 6768 * 6769 * Return value: 6770 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6771 **/ 6772static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 6773{ 6774 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6775 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 6776 unsigned long timeout; 6777 int rc = IPR_RC_JOB_CONTINUE; 6778 6779 ENTER; 6780 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 6781 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6782 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6783 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 6784 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 6785 6786 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 6787 timeout = IPR_SHUTDOWN_TIMEOUT; 6788 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 6789 timeout = IPR_INTERNAL_TIMEOUT; 6790 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6791 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 6792 else 6793 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 6794 6795 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 6796 6797 rc = IPR_RC_JOB_RETURN; 6798 ipr_cmd->job_step = ipr_reset_ucode_download; 6799 } else 6800 ipr_cmd->job_step = ipr_reset_alert; 6801 6802 LEAVE; 6803 return rc; 6804} 6805 6806/** 6807 * ipr_reset_ioa_job - Adapter reset job 6808 * @ipr_cmd: ipr command struct 6809 * 6810 * Description: This function is the job router for the adapter reset job. 6811 * 6812 * Return value: 6813 * none 6814 **/ 6815static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 6816{ 6817 u32 rc, ioasc; 6818 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6819 6820 do { 6821 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6822 6823 if (ioa_cfg->reset_cmd != ipr_cmd) { 6824 /* 6825 * We are doing nested adapter resets and this is 6826 * not the current reset job. 6827 */ 6828 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6829 return; 6830 } 6831 6832 if (IPR_IOASC_SENSE_KEY(ioasc)) { 6833 rc = ipr_cmd->job_step_failed(ipr_cmd); 6834 if (rc == IPR_RC_JOB_RETURN) 6835 return; 6836 } 6837 6838 ipr_reinit_ipr_cmnd(ipr_cmd); 6839 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 6840 rc = ipr_cmd->job_step(ipr_cmd); 6841 } while(rc == IPR_RC_JOB_CONTINUE); 6842} 6843 6844/** 6845 * _ipr_initiate_ioa_reset - Initiate an adapter reset 6846 * @ioa_cfg: ioa config struct 6847 * @job_step: first job step of reset job 6848 * @shutdown_type: shutdown type 6849 * 6850 * Description: This function will initiate the reset of the given adapter 6851 * starting at the selected job step. 6852 * If the caller needs to wait on the completion of the reset, 6853 * the caller must sleep on the reset_wait_q. 6854 * 6855 * Return value: 6856 * none 6857 **/ 6858static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6859 int (*job_step) (struct ipr_cmnd *), 6860 enum ipr_shutdown_type shutdown_type) 6861{ 6862 struct ipr_cmnd *ipr_cmd; 6863 6864 ioa_cfg->in_reset_reload = 1; 6865 ioa_cfg->allow_cmds = 0; 6866 scsi_block_requests(ioa_cfg->host); 6867 6868 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6869 ioa_cfg->reset_cmd = ipr_cmd; 6870 ipr_cmd->job_step = job_step; 6871 ipr_cmd->u.shutdown_type = shutdown_type; 6872 6873 ipr_reset_ioa_job(ipr_cmd); 6874} 6875 6876/** 6877 * ipr_initiate_ioa_reset - Initiate an adapter reset 6878 * @ioa_cfg: ioa config struct 6879 * @shutdown_type: shutdown type 6880 * 6881 * Description: This function will initiate the reset of the given adapter. 6882 * If the caller needs to wait on the completion of the reset, 6883 * the caller must sleep on the reset_wait_q. 6884 * 6885 * Return value: 6886 * none 6887 **/ 6888static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6889 enum ipr_shutdown_type shutdown_type) 6890{ 6891 if (ioa_cfg->ioa_is_dead) 6892 return; 6893 6894 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 6895 ioa_cfg->sdt_state = ABORT_DUMP; 6896 6897 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 6898 dev_err(&ioa_cfg->pdev->dev, 6899 "IOA taken offline - error recovery failed\n"); 6900 6901 ioa_cfg->reset_retries = 0; 6902 ioa_cfg->ioa_is_dead = 1; 6903 6904 if (ioa_cfg->in_ioa_bringdown) { 6905 ioa_cfg->reset_cmd = NULL; 6906 ioa_cfg->in_reset_reload = 0; 6907 ipr_fail_all_ops(ioa_cfg); 6908 wake_up_all(&ioa_cfg->reset_wait_q); 6909 6910 spin_unlock_irq(ioa_cfg->host->host_lock); 6911 scsi_unblock_requests(ioa_cfg->host); 6912 spin_lock_irq(ioa_cfg->host->host_lock); 6913 return; 6914 } else { 6915 ioa_cfg->in_ioa_bringdown = 1; 6916 shutdown_type = IPR_SHUTDOWN_NONE; 6917 } 6918 } 6919 6920 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 6921 shutdown_type); 6922} 6923 6924/** 6925 * ipr_reset_freeze - Hold off all I/O activity 6926 * @ipr_cmd: ipr command struct 6927 * 6928 * Description: If the PCI slot is frozen, hold off all I/O 6929 * activity; then, as soon as the slot is available again, 6930 * initiate an adapter reset. 6931 */ 6932static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 6933{ 6934 /* Disallow new interrupts, avoid loop */ 6935 ipr_cmd->ioa_cfg->allow_interrupts = 0; 6936 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6937 ipr_cmd->done = ipr_reset_ioa_job; 6938 return IPR_RC_JOB_RETURN; 6939} 6940 6941/** 6942 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 6943 * @pdev: PCI device struct 6944 * 6945 * Description: This routine is called to tell us that the PCI bus 6946 * is down. Can't do anything here, except put the device driver 6947 * into a holding pattern, waiting for the PCI bus to come back. 6948 */ 6949static void ipr_pci_frozen(struct pci_dev *pdev) 6950{ 6951 unsigned long flags = 0; 6952 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6953 6954 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6955 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 6956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6957} 6958 6959/** 6960 * ipr_pci_slot_reset - Called when PCI slot has been reset. 6961 * @pdev: PCI device struct 6962 * 6963 * Description: This routine is called by the pci error recovery 6964 * code after the PCI slot has been reset, just before we 6965 * should resume normal operations. 6966 */ 6967static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 6968{ 6969 unsigned long flags = 0; 6970 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6971 6972 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6973 if (ioa_cfg->needs_warm_reset) 6974 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6975 else 6976 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 6977 IPR_SHUTDOWN_NONE); 6978 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6979 return PCI_ERS_RESULT_RECOVERED; 6980} 6981 6982/** 6983 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 6984 * @pdev: PCI device struct 6985 * 6986 * Description: This routine is called when the PCI bus has 6987 * permanently failed. 6988 */ 6989static void ipr_pci_perm_failure(struct pci_dev *pdev) 6990{ 6991 unsigned long flags = 0; 6992 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6993 6994 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6995 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 6996 ioa_cfg->sdt_state = ABORT_DUMP; 6997 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 6998 ioa_cfg->in_ioa_bringdown = 1; 6999 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7001} 7002 7003/** 7004 * ipr_pci_error_detected - Called when a PCI error is detected. 7005 * @pdev: PCI device struct 7006 * @state: PCI channel state 7007 * 7008 * Description: Called when a PCI error is detected. 7009 * 7010 * Return value: 7011 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7012 */ 7013static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7014 pci_channel_state_t state) 7015{ 7016 switch (state) { 7017 case pci_channel_io_frozen: 7018 ipr_pci_frozen(pdev); 7019 return PCI_ERS_RESULT_NEED_RESET; 7020 case pci_channel_io_perm_failure: 7021 ipr_pci_perm_failure(pdev); 7022 return PCI_ERS_RESULT_DISCONNECT; 7023 break; 7024 default: 7025 break; 7026 } 7027 return PCI_ERS_RESULT_NEED_RESET; 7028} 7029 7030/** 7031 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7032 * @ioa_cfg: ioa cfg struct 7033 * 7034 * Description: This is the second phase of adapter intialization 7035 * This function takes care of initilizing the adapter to the point 7036 * where it can accept new commands. 7037 7038 * Return value: 7039 * 0 on success / -EIO on failure 7040 **/ 7041static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7042{ 7043 int rc = 0; 7044 unsigned long host_lock_flags = 0; 7045 7046 ENTER; 7047 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7048 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7049 if (ioa_cfg->needs_hard_reset) { 7050 ioa_cfg->needs_hard_reset = 0; 7051 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7052 } else 7053 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7054 IPR_SHUTDOWN_NONE); 7055 7056 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7057 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7058 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7059 7060 if (ioa_cfg->ioa_is_dead) { 7061 rc = -EIO; 7062 } else if (ipr_invalid_adapter(ioa_cfg)) { 7063 if (!ipr_testmode) 7064 rc = -EIO; 7065 7066 dev_err(&ioa_cfg->pdev->dev, 7067 "Adapter not supported in this hardware configuration.\n"); 7068 } 7069 7070 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7071 7072 LEAVE; 7073 return rc; 7074} 7075 7076/** 7077 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7078 * @ioa_cfg: ioa config struct 7079 * 7080 * Return value: 7081 * none 7082 **/ 7083static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7084{ 7085 int i; 7086 7087 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7088 if (ioa_cfg->ipr_cmnd_list[i]) 7089 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7090 ioa_cfg->ipr_cmnd_list[i], 7091 ioa_cfg->ipr_cmnd_list_dma[i]); 7092 7093 ioa_cfg->ipr_cmnd_list[i] = NULL; 7094 } 7095 7096 if (ioa_cfg->ipr_cmd_pool) 7097 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7098 7099 ioa_cfg->ipr_cmd_pool = NULL; 7100} 7101 7102/** 7103 * ipr_free_mem - Frees memory allocated for an adapter 7104 * @ioa_cfg: ioa cfg struct 7105 * 7106 * Return value: 7107 * nothing 7108 **/ 7109static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7110{ 7111 int i; 7112 7113 kfree(ioa_cfg->res_entries); 7114 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7115 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7116 ipr_free_cmd_blks(ioa_cfg); 7117 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7118 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7119 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), 7120 ioa_cfg->cfg_table, 7121 ioa_cfg->cfg_table_dma); 7122 7123 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7124 pci_free_consistent(ioa_cfg->pdev, 7125 sizeof(struct ipr_hostrcb), 7126 ioa_cfg->hostrcb[i], 7127 ioa_cfg->hostrcb_dma[i]); 7128 } 7129 7130 ipr_free_dump(ioa_cfg); 7131 kfree(ioa_cfg->trace); 7132} 7133 7134/** 7135 * ipr_free_all_resources - Free all allocated resources for an adapter. 7136 * @ipr_cmd: ipr command struct 7137 * 7138 * This function frees all allocated resources for the 7139 * specified adapter. 7140 * 7141 * Return value: 7142 * none 7143 **/ 7144static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 7145{ 7146 struct pci_dev *pdev = ioa_cfg->pdev; 7147 7148 ENTER; 7149 free_irq(pdev->irq, ioa_cfg); 7150 iounmap(ioa_cfg->hdw_dma_regs); 7151 pci_release_regions(pdev); 7152 ipr_free_mem(ioa_cfg); 7153 scsi_host_put(ioa_cfg->host); 7154 pci_disable_device(pdev); 7155 LEAVE; 7156} 7157 7158/** 7159 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 7160 * @ioa_cfg: ioa config struct 7161 * 7162 * Return value: 7163 * 0 on success / -ENOMEM on allocation failure 7164 **/ 7165static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7166{ 7167 struct ipr_cmnd *ipr_cmd; 7168 struct ipr_ioarcb *ioarcb; 7169 dma_addr_t dma_addr; 7170 int i; 7171 7172 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 7173 sizeof(struct ipr_cmnd), 8, 0); 7174 7175 if (!ioa_cfg->ipr_cmd_pool) 7176 return -ENOMEM; 7177 7178 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7179 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 7180 7181 if (!ipr_cmd) { 7182 ipr_free_cmd_blks(ioa_cfg); 7183 return -ENOMEM; 7184 } 7185 7186 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 7187 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 7188 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 7189 7190 ioarcb = &ipr_cmd->ioarcb; 7191 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 7192 ioarcb->host_response_handle = cpu_to_be32(i << 2); 7193 ioarcb->write_ioadl_addr = 7194 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 7195 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 7196 ioarcb->ioasa_host_pci_addr = 7197 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 7198 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 7199 ipr_cmd->cmd_index = i; 7200 ipr_cmd->ioa_cfg = ioa_cfg; 7201 ipr_cmd->sense_buffer_dma = dma_addr + 7202 offsetof(struct ipr_cmnd, sense_buffer); 7203 7204 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7205 } 7206 7207 return 0; 7208} 7209 7210/** 7211 * ipr_alloc_mem - Allocate memory for an adapter 7212 * @ioa_cfg: ioa config struct 7213 * 7214 * Return value: 7215 * 0 on success / non-zero for error 7216 **/ 7217static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 7218{ 7219 struct pci_dev *pdev = ioa_cfg->pdev; 7220 int i, rc = -ENOMEM; 7221 7222 ENTER; 7223 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 7224 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); 7225 7226 if (!ioa_cfg->res_entries) 7227 goto out; 7228 7229 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) 7230 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 7231 7232 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 7233 sizeof(struct ipr_misc_cbs), 7234 &ioa_cfg->vpd_cbs_dma); 7235 7236 if (!ioa_cfg->vpd_cbs) 7237 goto out_free_res_entries; 7238 7239 if (ipr_alloc_cmd_blks(ioa_cfg)) 7240 goto out_free_vpd_cbs; 7241 7242 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 7243 sizeof(u32) * IPR_NUM_CMD_BLKS, 7244 &ioa_cfg->host_rrq_dma); 7245 7246 if (!ioa_cfg->host_rrq) 7247 goto out_ipr_free_cmd_blocks; 7248 7249 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 7250 sizeof(struct ipr_config_table), 7251 &ioa_cfg->cfg_table_dma); 7252 7253 if (!ioa_cfg->cfg_table) 7254 goto out_free_host_rrq; 7255 7256 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7257 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 7258 sizeof(struct ipr_hostrcb), 7259 &ioa_cfg->hostrcb_dma[i]); 7260 7261 if (!ioa_cfg->hostrcb[i]) 7262 goto out_free_hostrcb_dma; 7263 7264 ioa_cfg->hostrcb[i]->hostrcb_dma = 7265 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 7266 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 7267 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 7268 } 7269 7270 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 7271 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 7272 7273 if (!ioa_cfg->trace) 7274 goto out_free_hostrcb_dma; 7275 7276 rc = 0; 7277out: 7278 LEAVE; 7279 return rc; 7280 7281out_free_hostrcb_dma: 7282 while (i-- > 0) { 7283 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 7284 ioa_cfg->hostrcb[i], 7285 ioa_cfg->hostrcb_dma[i]); 7286 } 7287 pci_free_consistent(pdev, sizeof(struct ipr_config_table), 7288 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); 7289out_free_host_rrq: 7290 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7291 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7292out_ipr_free_cmd_blocks: 7293 ipr_free_cmd_blks(ioa_cfg); 7294out_free_vpd_cbs: 7295 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 7296 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7297out_free_res_entries: 7298 kfree(ioa_cfg->res_entries); 7299 goto out; 7300} 7301 7302/** 7303 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 7304 * @ioa_cfg: ioa config struct 7305 * 7306 * Return value: 7307 * none 7308 **/ 7309static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 7310{ 7311 int i; 7312 7313 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 7314 ioa_cfg->bus_attr[i].bus = i; 7315 ioa_cfg->bus_attr[i].qas_enabled = 0; 7316 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 7317 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 7318 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 7319 else 7320 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 7321 } 7322} 7323 7324/** 7325 * ipr_init_ioa_cfg - Initialize IOA config struct 7326 * @ioa_cfg: ioa config struct 7327 * @host: scsi host struct 7328 * @pdev: PCI dev struct 7329 * 7330 * Return value: 7331 * none 7332 **/ 7333static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 7334 struct Scsi_Host *host, struct pci_dev *pdev) 7335{ 7336 const struct ipr_interrupt_offsets *p; 7337 struct ipr_interrupts *t; 7338 void __iomem *base; 7339 7340 ioa_cfg->host = host; 7341 ioa_cfg->pdev = pdev; 7342 ioa_cfg->log_level = ipr_log_level; 7343 ioa_cfg->doorbell = IPR_DOORBELL; 7344 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 7345 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 7346 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 7347 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 7348 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 7349 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 7350 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 7351 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 7352 7353 INIT_LIST_HEAD(&ioa_cfg->free_q); 7354 INIT_LIST_HEAD(&ioa_cfg->pending_q); 7355 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 7356 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 7357 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 7358 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 7359 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 7360 init_waitqueue_head(&ioa_cfg->reset_wait_q); 7361 ioa_cfg->sdt_state = INACTIVE; 7362 if (ipr_enable_cache) 7363 ioa_cfg->cache_state = CACHE_ENABLED; 7364 else 7365 ioa_cfg->cache_state = CACHE_DISABLED; 7366 7367 ipr_initialize_bus_attr(ioa_cfg); 7368 7369 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 7370 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 7371 host->max_channel = IPR_MAX_BUS_TO_SCAN; 7372 host->unique_id = host->host_no; 7373 host->max_cmd_len = IPR_MAX_CDB_LEN; 7374 pci_set_drvdata(pdev, ioa_cfg); 7375 7376 p = &ioa_cfg->chip_cfg->regs; 7377 t = &ioa_cfg->regs; 7378 base = ioa_cfg->hdw_dma_regs; 7379 7380 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 7381 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 7382 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 7383 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 7384 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 7385 t->ioarrin_reg = base + p->ioarrin_reg; 7386 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 7387 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 7388 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 7389} 7390 7391/** 7392 * ipr_get_chip_cfg - Find adapter chip configuration 7393 * @dev_id: PCI device id struct 7394 * 7395 * Return value: 7396 * ptr to chip config on success / NULL on failure 7397 **/ 7398static const struct ipr_chip_cfg_t * __devinit 7399ipr_get_chip_cfg(const struct pci_device_id *dev_id) 7400{ 7401 int i; 7402 7403 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 7404 if (ipr_chip[i].vendor == dev_id->vendor && 7405 ipr_chip[i].device == dev_id->device) 7406 return ipr_chip[i].cfg; 7407 return NULL; 7408} 7409 7410/** 7411 * ipr_probe_ioa - Allocates memory and does first stage of initialization 7412 * @pdev: PCI device struct 7413 * @dev_id: PCI device id struct 7414 * 7415 * Return value: 7416 * 0 on success / non-zero on failure 7417 **/ 7418static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 7419 const struct pci_device_id *dev_id) 7420{ 7421 struct ipr_ioa_cfg *ioa_cfg; 7422 struct Scsi_Host *host; 7423 unsigned long ipr_regs_pci; 7424 void __iomem *ipr_regs; 7425 int rc = PCIBIOS_SUCCESSFUL; 7426 volatile u32 mask, uproc, interrupts; 7427 7428 ENTER; 7429 7430 if ((rc = pci_enable_device(pdev))) { 7431 dev_err(&pdev->dev, "Cannot enable adapter\n"); 7432 goto out; 7433 } 7434 7435 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 7436 7437 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 7438 7439 if (!host) { 7440 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 7441 rc = -ENOMEM; 7442 goto out_disable; 7443 } 7444 7445 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 7446 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 7447 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 7448 sata_port_info.flags, &ipr_sata_ops); 7449 7450 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); 7451 7452 if (!ioa_cfg->chip_cfg) { 7453 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 7454 dev_id->vendor, dev_id->device); 7455 goto out_scsi_host_put; 7456 } 7457 7458 if (ipr_transop_timeout) 7459 ioa_cfg->transop_timeout = ipr_transop_timeout; 7460 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 7461 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 7462 else 7463 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 7464 7465 ioa_cfg->revid = pdev->revision; 7466 7467 ipr_regs_pci = pci_resource_start(pdev, 0); 7468 7469 rc = pci_request_regions(pdev, IPR_NAME); 7470 if (rc < 0) { 7471 dev_err(&pdev->dev, 7472 "Couldn't register memory range of registers\n"); 7473 goto out_scsi_host_put; 7474 } 7475 7476 ipr_regs = pci_ioremap_bar(pdev, 0); 7477 7478 if (!ipr_regs) { 7479 dev_err(&pdev->dev, 7480 "Couldn't map memory range of registers\n"); 7481 rc = -ENOMEM; 7482 goto out_release_regions; 7483 } 7484 7485 ioa_cfg->hdw_dma_regs = ipr_regs; 7486 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 7487 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 7488 7489 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 7490 7491 pci_set_master(pdev); 7492 7493 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 7494 if (rc < 0) { 7495 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 7496 goto cleanup_nomem; 7497 } 7498 7499 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 7500 ioa_cfg->chip_cfg->cache_line_size); 7501 7502 if (rc != PCIBIOS_SUCCESSFUL) { 7503 dev_err(&pdev->dev, "Write of cache line size failed\n"); 7504 rc = -EIO; 7505 goto cleanup_nomem; 7506 } 7507 7508 /* Save away PCI config space for use following IOA reset */ 7509 rc = pci_save_state(pdev); 7510 7511 if (rc != PCIBIOS_SUCCESSFUL) { 7512 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 7513 rc = -EIO; 7514 goto cleanup_nomem; 7515 } 7516 7517 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 7518 goto cleanup_nomem; 7519 7520 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 7521 goto cleanup_nomem; 7522 7523 rc = ipr_alloc_mem(ioa_cfg); 7524 if (rc < 0) { 7525 dev_err(&pdev->dev, 7526 "Couldn't allocate enough memory for device driver!\n"); 7527 goto cleanup_nomem; 7528 } 7529 7530 /* 7531 * If HRRQ updated interrupt is not masked, or reset alert is set, 7532 * the card is in an unknown state and needs a hard reset 7533 */ 7534 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7535 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); 7536 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 7537 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 7538 ioa_cfg->needs_hard_reset = 1; 7539 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 7540 ioa_cfg->needs_hard_reset = 1; 7541 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 7542 ioa_cfg->ioa_unit_checked = 1; 7543 7544 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 7545 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); 7546 7547 if (rc) { 7548 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 7549 pdev->irq, rc); 7550 goto cleanup_nolog; 7551 } 7552 7553 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 7554 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 7555 ioa_cfg->needs_warm_reset = 1; 7556 ioa_cfg->reset = ipr_reset_slot_reset; 7557 } else 7558 ioa_cfg->reset = ipr_reset_start_bist; 7559 7560 spin_lock(&ipr_driver_lock); 7561 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 7562 spin_unlock(&ipr_driver_lock); 7563 7564 LEAVE; 7565out: 7566 return rc; 7567 7568cleanup_nolog: 7569 ipr_free_mem(ioa_cfg); 7570cleanup_nomem: 7571 iounmap(ipr_regs); 7572out_release_regions: 7573 pci_release_regions(pdev); 7574out_scsi_host_put: 7575 scsi_host_put(host); 7576out_disable: 7577 pci_disable_device(pdev); 7578 goto out; 7579} 7580 7581/** 7582 * ipr_scan_vsets - Scans for VSET devices 7583 * @ioa_cfg: ioa config struct 7584 * 7585 * Description: Since the VSET resources do not follow SAM in that we can have 7586 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 7587 * 7588 * Return value: 7589 * none 7590 **/ 7591static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 7592{ 7593 int target, lun; 7594 7595 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 7596 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 7597 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 7598} 7599 7600/** 7601 * ipr_initiate_ioa_bringdown - Bring down an adapter 7602 * @ioa_cfg: ioa config struct 7603 * @shutdown_type: shutdown type 7604 * 7605 * Description: This function will initiate bringing down the adapter. 7606 * This consists of issuing an IOA shutdown to the adapter 7607 * to flush the cache, and running BIST. 7608 * If the caller needs to wait on the completion of the reset, 7609 * the caller must sleep on the reset_wait_q. 7610 * 7611 * Return value: 7612 * none 7613 **/ 7614static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 7615 enum ipr_shutdown_type shutdown_type) 7616{ 7617 ENTER; 7618 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7619 ioa_cfg->sdt_state = ABORT_DUMP; 7620 ioa_cfg->reset_retries = 0; 7621 ioa_cfg->in_ioa_bringdown = 1; 7622 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 7623 LEAVE; 7624} 7625 7626/** 7627 * __ipr_remove - Remove a single adapter 7628 * @pdev: pci device struct 7629 * 7630 * Adapter hot plug remove entry point. 7631 * 7632 * Return value: 7633 * none 7634 **/ 7635static void __ipr_remove(struct pci_dev *pdev) 7636{ 7637 unsigned long host_lock_flags = 0; 7638 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7639 ENTER; 7640 7641 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7642 while(ioa_cfg->in_reset_reload) { 7643 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7644 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7645 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7646 } 7647 7648 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7649 7650 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7651 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7652 flush_scheduled_work(); 7653 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7654 7655 spin_lock(&ipr_driver_lock); 7656 list_del(&ioa_cfg->queue); 7657 spin_unlock(&ipr_driver_lock); 7658 7659 if (ioa_cfg->sdt_state == ABORT_DUMP) 7660 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7661 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7662 7663 ipr_free_all_resources(ioa_cfg); 7664 7665 LEAVE; 7666} 7667 7668/** 7669 * ipr_remove - IOA hot plug remove entry point 7670 * @pdev: pci device struct 7671 * 7672 * Adapter hot plug remove entry point. 7673 * 7674 * Return value: 7675 * none 7676 **/ 7677static void ipr_remove(struct pci_dev *pdev) 7678{ 7679 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7680 7681 ENTER; 7682 7683 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 7684 &ipr_trace_attr); 7685 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 7686 &ipr_dump_attr); 7687 scsi_remove_host(ioa_cfg->host); 7688 7689 __ipr_remove(pdev); 7690 7691 LEAVE; 7692} 7693 7694/** 7695 * ipr_probe - Adapter hot plug add entry point 7696 * 7697 * Return value: 7698 * 0 on success / non-zero on failure 7699 **/ 7700static int __devinit ipr_probe(struct pci_dev *pdev, 7701 const struct pci_device_id *dev_id) 7702{ 7703 struct ipr_ioa_cfg *ioa_cfg; 7704 int rc; 7705 7706 rc = ipr_probe_ioa(pdev, dev_id); 7707 7708 if (rc) 7709 return rc; 7710 7711 ioa_cfg = pci_get_drvdata(pdev); 7712 rc = ipr_probe_ioa_part2(ioa_cfg); 7713 7714 if (rc) { 7715 __ipr_remove(pdev); 7716 return rc; 7717 } 7718 7719 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 7720 7721 if (rc) { 7722 __ipr_remove(pdev); 7723 return rc; 7724 } 7725 7726 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 7727 &ipr_trace_attr); 7728 7729 if (rc) { 7730 scsi_remove_host(ioa_cfg->host); 7731 __ipr_remove(pdev); 7732 return rc; 7733 } 7734 7735 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 7736 &ipr_dump_attr); 7737 7738 if (rc) { 7739 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 7740 &ipr_trace_attr); 7741 scsi_remove_host(ioa_cfg->host); 7742 __ipr_remove(pdev); 7743 return rc; 7744 } 7745 7746 scsi_scan_host(ioa_cfg->host); 7747 ipr_scan_vsets(ioa_cfg); 7748 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 7749 ioa_cfg->allow_ml_add_del = 1; 7750 ioa_cfg->host->max_channel = IPR_VSET_BUS; 7751 schedule_work(&ioa_cfg->work_q); 7752 return 0; 7753} 7754 7755/** 7756 * ipr_shutdown - Shutdown handler. 7757 * @pdev: pci device struct 7758 * 7759 * This function is invoked upon system shutdown/reboot. It will issue 7760 * an adapter shutdown to the adapter to flush the write cache. 7761 * 7762 * Return value: 7763 * none 7764 **/ 7765static void ipr_shutdown(struct pci_dev *pdev) 7766{ 7767 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7768 unsigned long lock_flags = 0; 7769 7770 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7771 while(ioa_cfg->in_reset_reload) { 7772 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7773 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7774 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7775 } 7776 7777 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7778 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7779 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7780} 7781 7782static struct pci_device_id ipr_pci_table[] __devinitdata = { 7783 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7784 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 7785 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7786 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 7787 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7788 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 7789 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7790 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 7791 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7792 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 7793 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7794 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 7795 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7796 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 7797 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7798 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 7799 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7800 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7801 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7802 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7803 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7804 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7805 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7806 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7807 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7808 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7809 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7810 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7811 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7812 IPR_USE_LONG_TRANSOP_TIMEOUT}, 7813 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7814 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7815 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7816 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 7818 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7819 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7820 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 7821 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7822 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7823 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 7824 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 7826 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 7827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 7828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 7829 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7830 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 7831 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7832 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 7833 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7834 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7835 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 7836 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7837 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E, 7838 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 7839 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7840 { } 7841}; 7842MODULE_DEVICE_TABLE(pci, ipr_pci_table); 7843 7844static struct pci_error_handlers ipr_err_handler = { 7845 .error_detected = ipr_pci_error_detected, 7846 .slot_reset = ipr_pci_slot_reset, 7847}; 7848 7849static struct pci_driver ipr_driver = { 7850 .name = IPR_NAME, 7851 .id_table = ipr_pci_table, 7852 .probe = ipr_probe, 7853 .remove = ipr_remove, 7854 .shutdown = ipr_shutdown, 7855 .err_handler = &ipr_err_handler, 7856}; 7857 7858/** 7859 * ipr_init - Module entry point 7860 * 7861 * Return value: 7862 * 0 on success / negative value on failure 7863 **/ 7864static int __init ipr_init(void) 7865{ 7866 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 7867 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 7868 7869 return pci_register_driver(&ipr_driver); 7870} 7871 7872/** 7873 * ipr_exit - Module unload 7874 * 7875 * Module unload entry point. 7876 * 7877 * Return value: 7878 * none 7879 **/ 7880static void __exit ipr_exit(void) 7881{ 7882 pci_unregister_driver(&ipr_driver); 7883} 7884 7885module_init(ipr_init); 7886module_exit(ipr_exit); 7887