ipr.c revision 473b1e8ed2e4f545de22e58c8c073471b18459e8
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 <asm/io.h> 75#include <asm/irq.h> 76#include <asm/processor.h> 77#include <scsi/scsi.h> 78#include <scsi/scsi_host.h> 79#include <scsi/scsi_tcq.h> 80#include <scsi/scsi_eh.h> 81#include <scsi/scsi_cmnd.h> 82#include "ipr.h" 83 84/* 85 * Global Data 86 */ 87static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head); 88static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 89static unsigned int ipr_max_speed = 1; 90static int ipr_testmode = 0; 91static unsigned int ipr_fastfail = 0; 92static unsigned int ipr_transop_timeout = 0; 93static unsigned int ipr_enable_cache = 1; 94static unsigned int ipr_debug = 0; 95static unsigned int ipr_dual_ioa_raid = 1; 96static DEFINE_SPINLOCK(ipr_driver_lock); 97 98/* This table describes the differences between DMA controller chips */ 99static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { 100 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ 101 .mailbox = 0x0042C, 102 .cache_line_size = 0x20, 103 { 104 .set_interrupt_mask_reg = 0x0022C, 105 .clr_interrupt_mask_reg = 0x00230, 106 .sense_interrupt_mask_reg = 0x0022C, 107 .clr_interrupt_reg = 0x00228, 108 .sense_interrupt_reg = 0x00224, 109 .ioarrin_reg = 0x00404, 110 .sense_uproc_interrupt_reg = 0x00214, 111 .set_uproc_interrupt_reg = 0x00214, 112 .clr_uproc_interrupt_reg = 0x00218 113 } 114 }, 115 { /* Snipe and Scamp */ 116 .mailbox = 0x0052C, 117 .cache_line_size = 0x20, 118 { 119 .set_interrupt_mask_reg = 0x00288, 120 .clr_interrupt_mask_reg = 0x0028C, 121 .sense_interrupt_mask_reg = 0x00288, 122 .clr_interrupt_reg = 0x00284, 123 .sense_interrupt_reg = 0x00280, 124 .ioarrin_reg = 0x00504, 125 .sense_uproc_interrupt_reg = 0x00290, 126 .set_uproc_interrupt_reg = 0x00290, 127 .clr_uproc_interrupt_reg = 0x00294 128 } 129 }, 130}; 131 132static const struct ipr_chip_t ipr_chip[] = { 133 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] }, 134 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] }, 135 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] }, 136 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] }, 137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] }, 138 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] }, 139 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] } 140}; 141 142static int ipr_max_bus_speeds [] = { 143 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 144}; 145 146MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 147MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 148module_param_named(max_speed, ipr_max_speed, uint, 0); 149MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 150module_param_named(log_level, ipr_log_level, uint, 0); 151MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 152module_param_named(testmode, ipr_testmode, int, 0); 153MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 154module_param_named(fastfail, ipr_fastfail, int, 0); 155MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 156module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 157MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 158module_param_named(enable_cache, ipr_enable_cache, int, 0); 159MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); 160module_param_named(debug, ipr_debug, int, 0); 161MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 162module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 163MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 164MODULE_LICENSE("GPL"); 165MODULE_VERSION(IPR_DRIVER_VERSION); 166 167/* A constant array of IOASCs/URCs/Error Messages */ 168static const 169struct ipr_error_table_t ipr_error_table[] = { 170 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 171 "8155: An unknown error was received"}, 172 {0x00330000, 0, 0, 173 "Soft underlength error"}, 174 {0x005A0000, 0, 0, 175 "Command to be cancelled not found"}, 176 {0x00808000, 0, 0, 177 "Qualified success"}, 178 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 179 "FFFE: Soft device bus error recovered by the IOA"}, 180 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 181 "4101: Soft device bus fabric error"}, 182 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 183 "FFF9: Device sector reassign successful"}, 184 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 185 "FFF7: Media error recovered by device rewrite procedures"}, 186 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 187 "7001: IOA sector reassignment successful"}, 188 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 189 "FFF9: Soft media error. Sector reassignment recommended"}, 190 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 191 "FFF7: Media error recovered by IOA rewrite procedures"}, 192 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 193 "FF3D: Soft PCI bus error recovered by the IOA"}, 194 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 195 "FFF6: Device hardware error recovered by the IOA"}, 196 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 197 "FFF6: Device hardware error recovered by the device"}, 198 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 199 "FF3D: Soft IOA error recovered by the IOA"}, 200 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 201 "FFFA: Undefined device response recovered by the IOA"}, 202 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 203 "FFF6: Device bus error, message or command phase"}, 204 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 205 "FFFE: Task Management Function failed"}, 206 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 207 "FFF6: Failure prediction threshold exceeded"}, 208 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 209 "8009: Impending cache battery pack failure"}, 210 {0x02040400, 0, 0, 211 "34FF: Disk device format in progress"}, 212 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 213 "9070: IOA requested reset"}, 214 {0x023F0000, 0, 0, 215 "Synchronization required"}, 216 {0x024E0000, 0, 0, 217 "No ready, IOA shutdown"}, 218 {0x025A0000, 0, 0, 219 "Not ready, IOA has been shutdown"}, 220 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 221 "3020: Storage subsystem configuration error"}, 222 {0x03110B00, 0, 0, 223 "FFF5: Medium error, data unreadable, recommend reassign"}, 224 {0x03110C00, 0, 0, 225 "7000: Medium error, data unreadable, do not reassign"}, 226 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 227 "FFF3: Disk media format bad"}, 228 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 229 "3002: Addressed device failed to respond to selection"}, 230 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 231 "3100: Device bus error"}, 232 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 233 "3109: IOA timed out a device command"}, 234 {0x04088000, 0, 0, 235 "3120: SCSI bus is not operational"}, 236 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 237 "4100: Hard device bus fabric error"}, 238 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 239 "9000: IOA reserved area data check"}, 240 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 241 "9001: IOA reserved area invalid data pattern"}, 242 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 243 "9002: IOA reserved area LRC error"}, 244 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 245 "102E: Out of alternate sectors for disk storage"}, 246 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 247 "FFF4: Data transfer underlength error"}, 248 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 249 "FFF4: Data transfer overlength error"}, 250 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 251 "3400: Logical unit failure"}, 252 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 253 "FFF4: Device microcode is corrupt"}, 254 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 255 "8150: PCI bus error"}, 256 {0x04430000, 1, 0, 257 "Unsupported device bus message received"}, 258 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 259 "FFF4: Disk device problem"}, 260 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 261 "8150: Permanent IOA failure"}, 262 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 263 "3010: Disk device returned wrong response to IOA"}, 264 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 265 "8151: IOA microcode error"}, 266 {0x04448500, 0, 0, 267 "Device bus status error"}, 268 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 269 "8157: IOA error requiring IOA reset to recover"}, 270 {0x04448700, 0, 0, 271 "ATA device status error"}, 272 {0x04490000, 0, 0, 273 "Message reject received from the device"}, 274 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 275 "8008: A permanent cache battery pack failure occurred"}, 276 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 277 "9090: Disk unit has been modified after the last known status"}, 278 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 279 "9081: IOA detected device error"}, 280 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 281 "9082: IOA detected device error"}, 282 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 283 "3110: Device bus error, message or command phase"}, 284 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 285 "3110: SAS Command / Task Management Function failed"}, 286 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 287 "9091: Incorrect hardware configuration change has been detected"}, 288 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 289 "9073: Invalid multi-adapter configuration"}, 290 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 291 "4010: Incorrect connection between cascaded expanders"}, 292 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 293 "4020: Connections exceed IOA design limits"}, 294 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 295 "4030: Incorrect multipath connection"}, 296 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 297 "4110: Unsupported enclosure function"}, 298 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 299 "FFF4: Command to logical unit failed"}, 300 {0x05240000, 1, 0, 301 "Illegal request, invalid request type or request packet"}, 302 {0x05250000, 0, 0, 303 "Illegal request, invalid resource handle"}, 304 {0x05258000, 0, 0, 305 "Illegal request, commands not allowed to this device"}, 306 {0x05258100, 0, 0, 307 "Illegal request, command not allowed to a secondary adapter"}, 308 {0x05260000, 0, 0, 309 "Illegal request, invalid field in parameter list"}, 310 {0x05260100, 0, 0, 311 "Illegal request, parameter not supported"}, 312 {0x05260200, 0, 0, 313 "Illegal request, parameter value invalid"}, 314 {0x052C0000, 0, 0, 315 "Illegal request, command sequence error"}, 316 {0x052C8000, 1, 0, 317 "Illegal request, dual adapter support not enabled"}, 318 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 319 "9031: Array protection temporarily suspended, protection resuming"}, 320 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 321 "9040: Array protection temporarily suspended, protection resuming"}, 322 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 323 "3140: Device bus not ready to ready transition"}, 324 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 325 "FFFB: SCSI bus was reset"}, 326 {0x06290500, 0, 0, 327 "FFFE: SCSI bus transition to single ended"}, 328 {0x06290600, 0, 0, 329 "FFFE: SCSI bus transition to LVD"}, 330 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 331 "FFFB: SCSI bus was reset by another initiator"}, 332 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 333 "3029: A device replacement has occurred"}, 334 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 335 "9051: IOA cache data exists for a missing or failed device"}, 336 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 337 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 338 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 339 "9025: Disk unit is not supported at its physical location"}, 340 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 341 "3020: IOA detected a SCSI bus configuration error"}, 342 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 343 "3150: SCSI bus configuration error"}, 344 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 345 "9074: Asymmetric advanced function disk configuration"}, 346 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 347 "4040: Incomplete multipath connection between IOA and enclosure"}, 348 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 349 "4041: Incomplete multipath connection between enclosure and device"}, 350 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 351 "9075: Incomplete multipath connection between IOA and remote IOA"}, 352 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 353 "9076: Configuration error, missing remote IOA"}, 354 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 355 "4050: Enclosure does not support a required multipath function"}, 356 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 357 "9041: Array protection temporarily suspended"}, 358 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 359 "9042: Corrupt array parity detected on specified device"}, 360 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 361 "9030: Array no longer protected due to missing or failed disk unit"}, 362 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 363 "9071: Link operational transition"}, 364 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 365 "9072: Link not operational transition"}, 366 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 367 "9032: Array exposed but still protected"}, 368 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 369 "70DD: Device forced failed by disrupt device command"}, 370 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 371 "4061: Multipath redundancy level got better"}, 372 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 373 "4060: Multipath redundancy level got worse"}, 374 {0x07270000, 0, 0, 375 "Failure due to other device"}, 376 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 377 "9008: IOA does not support functions expected by devices"}, 378 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 379 "9010: Cache data associated with attached devices cannot be found"}, 380 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 381 "9011: Cache data belongs to devices other than those attached"}, 382 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 383 "9020: Array missing 2 or more devices with only 1 device present"}, 384 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 385 "9021: Array missing 2 or more devices with 2 or more devices present"}, 386 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 387 "9022: Exposed array is missing a required device"}, 388 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 389 "9023: Array member(s) not at required physical locations"}, 390 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 391 "9024: Array not functional due to present hardware configuration"}, 392 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 393 "9026: Array not functional due to present hardware configuration"}, 394 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 395 "9027: Array is missing a device and parity is out of sync"}, 396 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 397 "9028: Maximum number of arrays already exist"}, 398 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 399 "9050: Required cache data cannot be located for a disk unit"}, 400 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 401 "9052: Cache data exists for a device that has been modified"}, 402 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 403 "9054: IOA resources not available due to previous problems"}, 404 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 405 "9092: Disk unit requires initialization before use"}, 406 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 407 "9029: Incorrect hardware configuration change has been detected"}, 408 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 409 "9060: One or more disk pairs are missing from an array"}, 410 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 411 "9061: One or more disks are missing from an array"}, 412 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 413 "9062: One or more disks are missing from an array"}, 414 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 415 "9063: Maximum number of functional arrays has been exceeded"}, 416 {0x0B260000, 0, 0, 417 "Aborted command, invalid descriptor"}, 418 {0x0B5A0000, 0, 0, 419 "Command terminated by host"} 420}; 421 422static const struct ipr_ses_table_entry ipr_ses_table[] = { 423 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 424 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 425 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 426 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 427 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 428 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 429 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 430 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 431 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 432 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 433 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 434 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 435 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 436}; 437 438/* 439 * Function Prototypes 440 */ 441static int ipr_reset_alert(struct ipr_cmnd *); 442static void ipr_process_ccn(struct ipr_cmnd *); 443static void ipr_process_error(struct ipr_cmnd *); 444static void ipr_reset_ioa_job(struct ipr_cmnd *); 445static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 446 enum ipr_shutdown_type); 447 448#ifdef CONFIG_SCSI_IPR_TRACE 449/** 450 * ipr_trc_hook - Add a trace entry to the driver trace 451 * @ipr_cmd: ipr command struct 452 * @type: trace type 453 * @add_data: additional data 454 * 455 * Return value: 456 * none 457 **/ 458static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 459 u8 type, u32 add_data) 460{ 461 struct ipr_trace_entry *trace_entry; 462 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 463 464 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 465 trace_entry->time = jiffies; 466 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 467 trace_entry->type = type; 468 trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command; 469 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 470 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 471 trace_entry->u.add_data = add_data; 472} 473#else 474#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 475#endif 476 477/** 478 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 479 * @ipr_cmd: ipr command struct 480 * 481 * Return value: 482 * none 483 **/ 484static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 485{ 486 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 487 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 488 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); 489 490 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 491 ioarcb->write_data_transfer_length = 0; 492 ioarcb->read_data_transfer_length = 0; 493 ioarcb->write_ioadl_len = 0; 494 ioarcb->read_ioadl_len = 0; 495 ioarcb->write_ioadl_addr = 496 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 497 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 498 ioasa->ioasc = 0; 499 ioasa->residual_data_len = 0; 500 ioasa->u.gata.status = 0; 501 502 ipr_cmd->scsi_cmd = NULL; 503 ipr_cmd->qc = NULL; 504 ipr_cmd->sense_buffer[0] = 0; 505 ipr_cmd->dma_use_sg = 0; 506} 507 508/** 509 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 510 * @ipr_cmd: ipr command struct 511 * 512 * Return value: 513 * none 514 **/ 515static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 516{ 517 ipr_reinit_ipr_cmnd(ipr_cmd); 518 ipr_cmd->u.scratch = 0; 519 ipr_cmd->sibling = NULL; 520 init_timer(&ipr_cmd->timer); 521} 522 523/** 524 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 525 * @ioa_cfg: ioa config struct 526 * 527 * Return value: 528 * pointer to ipr command struct 529 **/ 530static 531struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 532{ 533 struct ipr_cmnd *ipr_cmd; 534 535 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 536 list_del(&ipr_cmd->queue); 537 ipr_init_ipr_cmnd(ipr_cmd); 538 539 return ipr_cmd; 540} 541 542/** 543 * ipr_unmap_sglist - Unmap scatterlist if mapped 544 * @ioa_cfg: ioa config struct 545 * @ipr_cmd: ipr command struct 546 * 547 * Return value: 548 * nothing 549 **/ 550static void ipr_unmap_sglist(struct ipr_ioa_cfg *ioa_cfg, 551 struct ipr_cmnd *ipr_cmd) 552{ 553 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 554 555 if (ipr_cmd->dma_use_sg) { 556 if (scsi_cmd->use_sg > 0) { 557 pci_unmap_sg(ioa_cfg->pdev, scsi_cmd->request_buffer, 558 scsi_cmd->use_sg, 559 scsi_cmd->sc_data_direction); 560 } else { 561 pci_unmap_single(ioa_cfg->pdev, ipr_cmd->dma_handle, 562 scsi_cmd->request_bufflen, 563 scsi_cmd->sc_data_direction); 564 } 565 } 566} 567 568/** 569 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 570 * @ioa_cfg: ioa config struct 571 * @clr_ints: interrupts to clear 572 * 573 * This function masks all interrupts on the adapter, then clears the 574 * interrupts specified in the mask 575 * 576 * Return value: 577 * none 578 **/ 579static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 580 u32 clr_ints) 581{ 582 volatile u32 int_reg; 583 584 /* Stop new interrupts */ 585 ioa_cfg->allow_interrupts = 0; 586 587 /* Set interrupt mask to stop all new interrupts */ 588 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 589 590 /* Clear any pending interrupts */ 591 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); 592 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 593} 594 595/** 596 * ipr_save_pcix_cmd_reg - Save PCI-X command register 597 * @ioa_cfg: ioa config struct 598 * 599 * Return value: 600 * 0 on success / -EIO on failure 601 **/ 602static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 603{ 604 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 605 606 if (pcix_cmd_reg == 0) 607 return 0; 608 609 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 610 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 611 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 612 return -EIO; 613 } 614 615 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 616 return 0; 617} 618 619/** 620 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 621 * @ioa_cfg: ioa config struct 622 * 623 * Return value: 624 * 0 on success / -EIO on failure 625 **/ 626static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 627{ 628 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 629 630 if (pcix_cmd_reg) { 631 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 632 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 633 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 634 return -EIO; 635 } 636 } 637 638 return 0; 639} 640 641/** 642 * ipr_sata_eh_done - done function for aborted SATA commands 643 * @ipr_cmd: ipr command struct 644 * 645 * This function is invoked for ops generated to SATA 646 * devices which are being aborted. 647 * 648 * Return value: 649 * none 650 **/ 651static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 652{ 653 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 654 struct ata_queued_cmd *qc = ipr_cmd->qc; 655 struct ipr_sata_port *sata_port = qc->ap->private_data; 656 657 qc->err_mask |= AC_ERR_OTHER; 658 sata_port->ioasa.status |= ATA_BUSY; 659 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 660 ata_qc_complete(qc); 661} 662 663/** 664 * ipr_scsi_eh_done - mid-layer done function for aborted ops 665 * @ipr_cmd: ipr command struct 666 * 667 * This function is invoked by the interrupt handler for 668 * ops generated by the SCSI mid-layer which are being aborted. 669 * 670 * Return value: 671 * none 672 **/ 673static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 674{ 675 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 676 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 677 678 scsi_cmd->result |= (DID_ERROR << 16); 679 680 ipr_unmap_sglist(ioa_cfg, ipr_cmd); 681 scsi_cmd->scsi_done(scsi_cmd); 682 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 683} 684 685/** 686 * ipr_fail_all_ops - Fails all outstanding ops. 687 * @ioa_cfg: ioa config struct 688 * 689 * This function fails all outstanding ops. 690 * 691 * Return value: 692 * none 693 **/ 694static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 695{ 696 struct ipr_cmnd *ipr_cmd, *temp; 697 698 ENTER; 699 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 700 list_del(&ipr_cmd->queue); 701 702 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 703 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); 704 705 if (ipr_cmd->scsi_cmd) 706 ipr_cmd->done = ipr_scsi_eh_done; 707 else if (ipr_cmd->qc) 708 ipr_cmd->done = ipr_sata_eh_done; 709 710 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 711 del_timer(&ipr_cmd->timer); 712 ipr_cmd->done(ipr_cmd); 713 } 714 715 LEAVE; 716} 717 718/** 719 * ipr_do_req - Send driver initiated requests. 720 * @ipr_cmd: ipr command struct 721 * @done: done function 722 * @timeout_func: timeout function 723 * @timeout: timeout value 724 * 725 * This function sends the specified command to the adapter with the 726 * timeout given. The done function is invoked on command completion. 727 * 728 * Return value: 729 * none 730 **/ 731static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 732 void (*done) (struct ipr_cmnd *), 733 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 734{ 735 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 736 737 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 738 739 ipr_cmd->done = done; 740 741 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 742 ipr_cmd->timer.expires = jiffies + timeout; 743 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 744 745 add_timer(&ipr_cmd->timer); 746 747 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 748 749 mb(); 750 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 751 ioa_cfg->regs.ioarrin_reg); 752} 753 754/** 755 * ipr_internal_cmd_done - Op done function for an internally generated op. 756 * @ipr_cmd: ipr command struct 757 * 758 * This function is the op done function for an internally generated, 759 * blocking op. It simply wakes the sleeping thread. 760 * 761 * Return value: 762 * none 763 **/ 764static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 765{ 766 if (ipr_cmd->sibling) 767 ipr_cmd->sibling = NULL; 768 else 769 complete(&ipr_cmd->completion); 770} 771 772/** 773 * ipr_send_blocking_cmd - Send command and sleep on its completion. 774 * @ipr_cmd: ipr command struct 775 * @timeout_func: function to invoke if command times out 776 * @timeout: timeout 777 * 778 * Return value: 779 * none 780 **/ 781static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 782 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 783 u32 timeout) 784{ 785 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 786 787 init_completion(&ipr_cmd->completion); 788 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 789 790 spin_unlock_irq(ioa_cfg->host->host_lock); 791 wait_for_completion(&ipr_cmd->completion); 792 spin_lock_irq(ioa_cfg->host->host_lock); 793} 794 795/** 796 * ipr_send_hcam - Send an HCAM to the adapter. 797 * @ioa_cfg: ioa config struct 798 * @type: HCAM type 799 * @hostrcb: hostrcb struct 800 * 801 * This function will send a Host Controlled Async command to the adapter. 802 * If HCAMs are currently not allowed to be issued to the adapter, it will 803 * place the hostrcb on the free queue. 804 * 805 * Return value: 806 * none 807 **/ 808static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 809 struct ipr_hostrcb *hostrcb) 810{ 811 struct ipr_cmnd *ipr_cmd; 812 struct ipr_ioarcb *ioarcb; 813 814 if (ioa_cfg->allow_cmds) { 815 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 816 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 817 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 818 819 ipr_cmd->u.hostrcb = hostrcb; 820 ioarcb = &ipr_cmd->ioarcb; 821 822 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 823 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 824 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 825 ioarcb->cmd_pkt.cdb[1] = type; 826 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 827 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 828 829 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); 830 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 831 ipr_cmd->ioadl[0].flags_and_data_len = 832 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); 833 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); 834 835 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 836 ipr_cmd->done = ipr_process_ccn; 837 else 838 ipr_cmd->done = ipr_process_error; 839 840 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 841 842 mb(); 843 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 844 ioa_cfg->regs.ioarrin_reg); 845 } else { 846 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 847 } 848} 849 850/** 851 * ipr_init_res_entry - Initialize a resource entry struct. 852 * @res: resource entry struct 853 * 854 * Return value: 855 * none 856 **/ 857static void ipr_init_res_entry(struct ipr_resource_entry *res) 858{ 859 res->needs_sync_complete = 0; 860 res->in_erp = 0; 861 res->add_to_ml = 0; 862 res->del_from_ml = 0; 863 res->resetting_device = 0; 864 res->sdev = NULL; 865 res->sata_port = NULL; 866} 867 868/** 869 * ipr_handle_config_change - Handle a config change from the adapter 870 * @ioa_cfg: ioa config struct 871 * @hostrcb: hostrcb 872 * 873 * Return value: 874 * none 875 **/ 876static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 877 struct ipr_hostrcb *hostrcb) 878{ 879 struct ipr_resource_entry *res = NULL; 880 struct ipr_config_table_entry *cfgte; 881 u32 is_ndn = 1; 882 883 cfgte = &hostrcb->hcam.u.ccn.cfgte; 884 885 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 886 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, 887 sizeof(cfgte->res_addr))) { 888 is_ndn = 0; 889 break; 890 } 891 } 892 893 if (is_ndn) { 894 if (list_empty(&ioa_cfg->free_res_q)) { 895 ipr_send_hcam(ioa_cfg, 896 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 897 hostrcb); 898 return; 899 } 900 901 res = list_entry(ioa_cfg->free_res_q.next, 902 struct ipr_resource_entry, queue); 903 904 list_del(&res->queue); 905 ipr_init_res_entry(res); 906 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 907 } 908 909 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 910 911 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 912 if (res->sdev) { 913 res->del_from_ml = 1; 914 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 915 if (ioa_cfg->allow_ml_add_del) 916 schedule_work(&ioa_cfg->work_q); 917 } else 918 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 919 } else if (!res->sdev) { 920 res->add_to_ml = 1; 921 if (ioa_cfg->allow_ml_add_del) 922 schedule_work(&ioa_cfg->work_q); 923 } 924 925 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 926} 927 928/** 929 * ipr_process_ccn - Op done function for a CCN. 930 * @ipr_cmd: ipr command struct 931 * 932 * This function is the op done function for a configuration 933 * change notification host controlled async from the adapter. 934 * 935 * Return value: 936 * none 937 **/ 938static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 939{ 940 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 941 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 942 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 943 944 list_del(&hostrcb->queue); 945 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 946 947 if (ioasc) { 948 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 949 dev_err(&ioa_cfg->pdev->dev, 950 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 951 952 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 953 } else { 954 ipr_handle_config_change(ioa_cfg, hostrcb); 955 } 956} 957 958/** 959 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 960 * @i: index into buffer 961 * @buf: string to modify 962 * 963 * This function will strip all trailing whitespace, pad the end 964 * of the string with a single space, and NULL terminate the string. 965 * 966 * Return value: 967 * new length of string 968 **/ 969static int strip_and_pad_whitespace(int i, char *buf) 970{ 971 while (i && buf[i] == ' ') 972 i--; 973 buf[i+1] = ' '; 974 buf[i+2] = '\0'; 975 return i + 2; 976} 977 978/** 979 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 980 * @prefix: string to print at start of printk 981 * @hostrcb: hostrcb pointer 982 * @vpd: vendor/product id/sn struct 983 * 984 * Return value: 985 * none 986 **/ 987static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 988 struct ipr_vpd *vpd) 989{ 990 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 991 int i = 0; 992 993 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 994 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 995 996 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 997 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 998 999 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1000 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1001 1002 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1003} 1004 1005/** 1006 * ipr_log_vpd - Log the passed VPD to the error log. 1007 * @vpd: vendor/product id/sn struct 1008 * 1009 * Return value: 1010 * none 1011 **/ 1012static void ipr_log_vpd(struct ipr_vpd *vpd) 1013{ 1014 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1015 + IPR_SERIAL_NUM_LEN]; 1016 1017 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1018 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1019 IPR_PROD_ID_LEN); 1020 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1021 ipr_err("Vendor/Product ID: %s\n", buffer); 1022 1023 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1024 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1025 ipr_err(" Serial Number: %s\n", buffer); 1026} 1027 1028/** 1029 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1030 * @prefix: string to print at start of printk 1031 * @hostrcb: hostrcb pointer 1032 * @vpd: vendor/product id/sn/wwn struct 1033 * 1034 * Return value: 1035 * none 1036 **/ 1037static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1038 struct ipr_ext_vpd *vpd) 1039{ 1040 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1041 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1042 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1043} 1044 1045/** 1046 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1047 * @vpd: vendor/product id/sn/wwn struct 1048 * 1049 * Return value: 1050 * none 1051 **/ 1052static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1053{ 1054 ipr_log_vpd(&vpd->vpd); 1055 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1056 be32_to_cpu(vpd->wwid[1])); 1057} 1058 1059/** 1060 * ipr_log_enhanced_cache_error - Log a cache error. 1061 * @ioa_cfg: ioa config struct 1062 * @hostrcb: hostrcb struct 1063 * 1064 * Return value: 1065 * none 1066 **/ 1067static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1068 struct ipr_hostrcb *hostrcb) 1069{ 1070 struct ipr_hostrcb_type_12_error *error = 1071 &hostrcb->hcam.u.error.u.type_12_error; 1072 1073 ipr_err("-----Current Configuration-----\n"); 1074 ipr_err("Cache Directory Card Information:\n"); 1075 ipr_log_ext_vpd(&error->ioa_vpd); 1076 ipr_err("Adapter Card Information:\n"); 1077 ipr_log_ext_vpd(&error->cfc_vpd); 1078 1079 ipr_err("-----Expected Configuration-----\n"); 1080 ipr_err("Cache Directory Card Information:\n"); 1081 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1082 ipr_err("Adapter Card Information:\n"); 1083 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1084 1085 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1086 be32_to_cpu(error->ioa_data[0]), 1087 be32_to_cpu(error->ioa_data[1]), 1088 be32_to_cpu(error->ioa_data[2])); 1089} 1090 1091/** 1092 * ipr_log_cache_error - Log a cache error. 1093 * @ioa_cfg: ioa config struct 1094 * @hostrcb: hostrcb struct 1095 * 1096 * Return value: 1097 * none 1098 **/ 1099static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1100 struct ipr_hostrcb *hostrcb) 1101{ 1102 struct ipr_hostrcb_type_02_error *error = 1103 &hostrcb->hcam.u.error.u.type_02_error; 1104 1105 ipr_err("-----Current Configuration-----\n"); 1106 ipr_err("Cache Directory Card Information:\n"); 1107 ipr_log_vpd(&error->ioa_vpd); 1108 ipr_err("Adapter Card Information:\n"); 1109 ipr_log_vpd(&error->cfc_vpd); 1110 1111 ipr_err("-----Expected Configuration-----\n"); 1112 ipr_err("Cache Directory Card Information:\n"); 1113 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1114 ipr_err("Adapter Card Information:\n"); 1115 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1116 1117 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1118 be32_to_cpu(error->ioa_data[0]), 1119 be32_to_cpu(error->ioa_data[1]), 1120 be32_to_cpu(error->ioa_data[2])); 1121} 1122 1123/** 1124 * ipr_log_enhanced_config_error - Log a configuration error. 1125 * @ioa_cfg: ioa config struct 1126 * @hostrcb: hostrcb struct 1127 * 1128 * Return value: 1129 * none 1130 **/ 1131static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1132 struct ipr_hostrcb *hostrcb) 1133{ 1134 int errors_logged, i; 1135 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1136 struct ipr_hostrcb_type_13_error *error; 1137 1138 error = &hostrcb->hcam.u.error.u.type_13_error; 1139 errors_logged = be32_to_cpu(error->errors_logged); 1140 1141 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1142 be32_to_cpu(error->errors_detected), errors_logged); 1143 1144 dev_entry = error->dev; 1145 1146 for (i = 0; i < errors_logged; i++, dev_entry++) { 1147 ipr_err_separator; 1148 1149 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1150 ipr_log_ext_vpd(&dev_entry->vpd); 1151 1152 ipr_err("-----New Device Information-----\n"); 1153 ipr_log_ext_vpd(&dev_entry->new_vpd); 1154 1155 ipr_err("Cache Directory Card Information:\n"); 1156 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1157 1158 ipr_err("Adapter Card Information:\n"); 1159 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1160 } 1161} 1162 1163/** 1164 * ipr_log_config_error - Log a configuration error. 1165 * @ioa_cfg: ioa config struct 1166 * @hostrcb: hostrcb struct 1167 * 1168 * Return value: 1169 * none 1170 **/ 1171static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1172 struct ipr_hostrcb *hostrcb) 1173{ 1174 int errors_logged, i; 1175 struct ipr_hostrcb_device_data_entry *dev_entry; 1176 struct ipr_hostrcb_type_03_error *error; 1177 1178 error = &hostrcb->hcam.u.error.u.type_03_error; 1179 errors_logged = be32_to_cpu(error->errors_logged); 1180 1181 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1182 be32_to_cpu(error->errors_detected), errors_logged); 1183 1184 dev_entry = error->dev; 1185 1186 for (i = 0; i < errors_logged; i++, dev_entry++) { 1187 ipr_err_separator; 1188 1189 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1190 ipr_log_vpd(&dev_entry->vpd); 1191 1192 ipr_err("-----New Device Information-----\n"); 1193 ipr_log_vpd(&dev_entry->new_vpd); 1194 1195 ipr_err("Cache Directory Card Information:\n"); 1196 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1197 1198 ipr_err("Adapter Card Information:\n"); 1199 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1200 1201 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1202 be32_to_cpu(dev_entry->ioa_data[0]), 1203 be32_to_cpu(dev_entry->ioa_data[1]), 1204 be32_to_cpu(dev_entry->ioa_data[2]), 1205 be32_to_cpu(dev_entry->ioa_data[3]), 1206 be32_to_cpu(dev_entry->ioa_data[4])); 1207 } 1208} 1209 1210/** 1211 * ipr_log_enhanced_array_error - Log an array configuration error. 1212 * @ioa_cfg: ioa config struct 1213 * @hostrcb: hostrcb struct 1214 * 1215 * Return value: 1216 * none 1217 **/ 1218static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1219 struct ipr_hostrcb *hostrcb) 1220{ 1221 int i, num_entries; 1222 struct ipr_hostrcb_type_14_error *error; 1223 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1224 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1225 1226 error = &hostrcb->hcam.u.error.u.type_14_error; 1227 1228 ipr_err_separator; 1229 1230 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1231 error->protection_level, 1232 ioa_cfg->host->host_no, 1233 error->last_func_vset_res_addr.bus, 1234 error->last_func_vset_res_addr.target, 1235 error->last_func_vset_res_addr.lun); 1236 1237 ipr_err_separator; 1238 1239 array_entry = error->array_member; 1240 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1241 sizeof(error->array_member)); 1242 1243 for (i = 0; i < num_entries; i++, array_entry++) { 1244 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1245 continue; 1246 1247 if (be32_to_cpu(error->exposed_mode_adn) == i) 1248 ipr_err("Exposed Array Member %d:\n", i); 1249 else 1250 ipr_err("Array Member %d:\n", i); 1251 1252 ipr_log_ext_vpd(&array_entry->vpd); 1253 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1254 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1255 "Expected Location"); 1256 1257 ipr_err_separator; 1258 } 1259} 1260 1261/** 1262 * ipr_log_array_error - Log an array configuration error. 1263 * @ioa_cfg: ioa config struct 1264 * @hostrcb: hostrcb struct 1265 * 1266 * Return value: 1267 * none 1268 **/ 1269static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1270 struct ipr_hostrcb *hostrcb) 1271{ 1272 int i; 1273 struct ipr_hostrcb_type_04_error *error; 1274 struct ipr_hostrcb_array_data_entry *array_entry; 1275 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1276 1277 error = &hostrcb->hcam.u.error.u.type_04_error; 1278 1279 ipr_err_separator; 1280 1281 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1282 error->protection_level, 1283 ioa_cfg->host->host_no, 1284 error->last_func_vset_res_addr.bus, 1285 error->last_func_vset_res_addr.target, 1286 error->last_func_vset_res_addr.lun); 1287 1288 ipr_err_separator; 1289 1290 array_entry = error->array_member; 1291 1292 for (i = 0; i < 18; i++) { 1293 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1294 continue; 1295 1296 if (be32_to_cpu(error->exposed_mode_adn) == i) 1297 ipr_err("Exposed Array Member %d:\n", i); 1298 else 1299 ipr_err("Array Member %d:\n", i); 1300 1301 ipr_log_vpd(&array_entry->vpd); 1302 1303 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1304 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1305 "Expected Location"); 1306 1307 ipr_err_separator; 1308 1309 if (i == 9) 1310 array_entry = error->array_member2; 1311 else 1312 array_entry++; 1313 } 1314} 1315 1316/** 1317 * ipr_log_hex_data - Log additional hex IOA error data. 1318 * @ioa_cfg: ioa config struct 1319 * @data: IOA error data 1320 * @len: data length 1321 * 1322 * Return value: 1323 * none 1324 **/ 1325static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1326{ 1327 int i; 1328 1329 if (len == 0) 1330 return; 1331 1332 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1333 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1334 1335 for (i = 0; i < len / 4; i += 4) { 1336 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1337 be32_to_cpu(data[i]), 1338 be32_to_cpu(data[i+1]), 1339 be32_to_cpu(data[i+2]), 1340 be32_to_cpu(data[i+3])); 1341 } 1342} 1343 1344/** 1345 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1346 * @ioa_cfg: ioa config struct 1347 * @hostrcb: hostrcb struct 1348 * 1349 * Return value: 1350 * none 1351 **/ 1352static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1353 struct ipr_hostrcb *hostrcb) 1354{ 1355 struct ipr_hostrcb_type_17_error *error; 1356 1357 error = &hostrcb->hcam.u.error.u.type_17_error; 1358 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1359 strstrip(error->failure_reason); 1360 1361 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1362 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1363 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1364 ipr_log_hex_data(ioa_cfg, error->data, 1365 be32_to_cpu(hostrcb->hcam.length) - 1366 (offsetof(struct ipr_hostrcb_error, u) + 1367 offsetof(struct ipr_hostrcb_type_17_error, data))); 1368} 1369 1370/** 1371 * ipr_log_dual_ioa_error - Log a dual adapter error. 1372 * @ioa_cfg: ioa config struct 1373 * @hostrcb: hostrcb struct 1374 * 1375 * Return value: 1376 * none 1377 **/ 1378static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1379 struct ipr_hostrcb *hostrcb) 1380{ 1381 struct ipr_hostrcb_type_07_error *error; 1382 1383 error = &hostrcb->hcam.u.error.u.type_07_error; 1384 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1385 strstrip(error->failure_reason); 1386 1387 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1388 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1389 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1390 ipr_log_hex_data(ioa_cfg, error->data, 1391 be32_to_cpu(hostrcb->hcam.length) - 1392 (offsetof(struct ipr_hostrcb_error, u) + 1393 offsetof(struct ipr_hostrcb_type_07_error, data))); 1394} 1395 1396static const struct { 1397 u8 active; 1398 char *desc; 1399} path_active_desc[] = { 1400 { IPR_PATH_NO_INFO, "Path" }, 1401 { IPR_PATH_ACTIVE, "Active path" }, 1402 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1403}; 1404 1405static const struct { 1406 u8 state; 1407 char *desc; 1408} path_state_desc[] = { 1409 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1410 { IPR_PATH_HEALTHY, "is healthy" }, 1411 { IPR_PATH_DEGRADED, "is degraded" }, 1412 { IPR_PATH_FAILED, "is failed" } 1413}; 1414 1415/** 1416 * ipr_log_fabric_path - Log a fabric path error 1417 * @hostrcb: hostrcb struct 1418 * @fabric: fabric descriptor 1419 * 1420 * Return value: 1421 * none 1422 **/ 1423static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1424 struct ipr_hostrcb_fabric_desc *fabric) 1425{ 1426 int i, j; 1427 u8 path_state = fabric->path_state; 1428 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1429 u8 state = path_state & IPR_PATH_STATE_MASK; 1430 1431 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1432 if (path_active_desc[i].active != active) 1433 continue; 1434 1435 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1436 if (path_state_desc[j].state != state) 1437 continue; 1438 1439 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1440 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1441 path_active_desc[i].desc, path_state_desc[j].desc, 1442 fabric->ioa_port); 1443 } else if (fabric->cascaded_expander == 0xff) { 1444 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1445 path_active_desc[i].desc, path_state_desc[j].desc, 1446 fabric->ioa_port, fabric->phy); 1447 } else if (fabric->phy == 0xff) { 1448 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1449 path_active_desc[i].desc, path_state_desc[j].desc, 1450 fabric->ioa_port, fabric->cascaded_expander); 1451 } else { 1452 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1453 path_active_desc[i].desc, path_state_desc[j].desc, 1454 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1455 } 1456 return; 1457 } 1458 } 1459 1460 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1461 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1462} 1463 1464static const struct { 1465 u8 type; 1466 char *desc; 1467} path_type_desc[] = { 1468 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1469 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1470 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1471 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1472}; 1473 1474static const struct { 1475 u8 status; 1476 char *desc; 1477} path_status_desc[] = { 1478 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1479 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1480 { IPR_PATH_CFG_FAILED, "Failed" }, 1481 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1482 { IPR_PATH_NOT_DETECTED, "Missing" }, 1483 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1484}; 1485 1486static const char *link_rate[] = { 1487 "unknown", 1488 "disabled", 1489 "phy reset problem", 1490 "spinup hold", 1491 "port selector", 1492 "unknown", 1493 "unknown", 1494 "unknown", 1495 "1.5Gbps", 1496 "3.0Gbps", 1497 "unknown", 1498 "unknown", 1499 "unknown", 1500 "unknown", 1501 "unknown", 1502 "unknown" 1503}; 1504 1505/** 1506 * ipr_log_path_elem - Log a fabric path element. 1507 * @hostrcb: hostrcb struct 1508 * @cfg: fabric path element struct 1509 * 1510 * Return value: 1511 * none 1512 **/ 1513static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1514 struct ipr_hostrcb_config_element *cfg) 1515{ 1516 int i, j; 1517 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1518 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1519 1520 if (type == IPR_PATH_CFG_NOT_EXIST) 1521 return; 1522 1523 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1524 if (path_type_desc[i].type != type) 1525 continue; 1526 1527 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 1528 if (path_status_desc[j].status != status) 1529 continue; 1530 1531 if (type == IPR_PATH_CFG_IOA_PORT) { 1532 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 1533 path_status_desc[j].desc, path_type_desc[i].desc, 1534 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1535 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1536 } else { 1537 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 1538 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 1539 path_status_desc[j].desc, path_type_desc[i].desc, 1540 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1541 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1542 } else if (cfg->cascaded_expander == 0xff) { 1543 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 1544 "WWN=%08X%08X\n", path_status_desc[j].desc, 1545 path_type_desc[i].desc, cfg->phy, 1546 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1547 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1548 } else if (cfg->phy == 0xff) { 1549 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 1550 "WWN=%08X%08X\n", path_status_desc[j].desc, 1551 path_type_desc[i].desc, cfg->cascaded_expander, 1552 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1553 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1554 } else { 1555 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 1556 "WWN=%08X%08X\n", path_status_desc[j].desc, 1557 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 1558 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1559 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1560 } 1561 } 1562 return; 1563 } 1564 } 1565 1566 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 1567 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 1568 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1569 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1570} 1571 1572/** 1573 * ipr_log_fabric_error - Log a fabric error. 1574 * @ioa_cfg: ioa config struct 1575 * @hostrcb: hostrcb struct 1576 * 1577 * Return value: 1578 * none 1579 **/ 1580static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 1581 struct ipr_hostrcb *hostrcb) 1582{ 1583 struct ipr_hostrcb_type_20_error *error; 1584 struct ipr_hostrcb_fabric_desc *fabric; 1585 struct ipr_hostrcb_config_element *cfg; 1586 int i, add_len; 1587 1588 error = &hostrcb->hcam.u.error.u.type_20_error; 1589 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1590 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 1591 1592 add_len = be32_to_cpu(hostrcb->hcam.length) - 1593 (offsetof(struct ipr_hostrcb_error, u) + 1594 offsetof(struct ipr_hostrcb_type_20_error, desc)); 1595 1596 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 1597 ipr_log_fabric_path(hostrcb, fabric); 1598 for_each_fabric_cfg(fabric, cfg) 1599 ipr_log_path_elem(hostrcb, cfg); 1600 1601 add_len -= be16_to_cpu(fabric->length); 1602 fabric = (struct ipr_hostrcb_fabric_desc *) 1603 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 1604 } 1605 1606 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 1607} 1608 1609/** 1610 * ipr_log_generic_error - Log an adapter error. 1611 * @ioa_cfg: ioa config struct 1612 * @hostrcb: hostrcb struct 1613 * 1614 * Return value: 1615 * none 1616 **/ 1617static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 1618 struct ipr_hostrcb *hostrcb) 1619{ 1620 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 1621 be32_to_cpu(hostrcb->hcam.length)); 1622} 1623 1624/** 1625 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 1626 * @ioasc: IOASC 1627 * 1628 * This function will return the index of into the ipr_error_table 1629 * for the specified IOASC. If the IOASC is not in the table, 1630 * 0 will be returned, which points to the entry used for unknown errors. 1631 * 1632 * Return value: 1633 * index into the ipr_error_table 1634 **/ 1635static u32 ipr_get_error(u32 ioasc) 1636{ 1637 int i; 1638 1639 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 1640 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 1641 return i; 1642 1643 return 0; 1644} 1645 1646/** 1647 * ipr_handle_log_data - Log an adapter error. 1648 * @ioa_cfg: ioa config struct 1649 * @hostrcb: hostrcb struct 1650 * 1651 * This function logs an adapter error to the system. 1652 * 1653 * Return value: 1654 * none 1655 **/ 1656static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 1657 struct ipr_hostrcb *hostrcb) 1658{ 1659 u32 ioasc; 1660 int error_index; 1661 1662 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 1663 return; 1664 1665 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 1666 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 1667 1668 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 1669 1670 if (ioasc == IPR_IOASC_BUS_WAS_RESET || 1671 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { 1672 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 1673 scsi_report_bus_reset(ioa_cfg->host, 1674 hostrcb->hcam.u.error.failing_dev_res_addr.bus); 1675 } 1676 1677 error_index = ipr_get_error(ioasc); 1678 1679 if (!ipr_error_table[error_index].log_hcam) 1680 return; 1681 1682 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 1683 1684 /* Set indication we have logged an error */ 1685 ioa_cfg->errors_logged++; 1686 1687 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 1688 return; 1689 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 1690 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 1691 1692 switch (hostrcb->hcam.overlay_id) { 1693 case IPR_HOST_RCB_OVERLAY_ID_2: 1694 ipr_log_cache_error(ioa_cfg, hostrcb); 1695 break; 1696 case IPR_HOST_RCB_OVERLAY_ID_3: 1697 ipr_log_config_error(ioa_cfg, hostrcb); 1698 break; 1699 case IPR_HOST_RCB_OVERLAY_ID_4: 1700 case IPR_HOST_RCB_OVERLAY_ID_6: 1701 ipr_log_array_error(ioa_cfg, hostrcb); 1702 break; 1703 case IPR_HOST_RCB_OVERLAY_ID_7: 1704 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 1705 break; 1706 case IPR_HOST_RCB_OVERLAY_ID_12: 1707 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 1708 break; 1709 case IPR_HOST_RCB_OVERLAY_ID_13: 1710 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 1711 break; 1712 case IPR_HOST_RCB_OVERLAY_ID_14: 1713 case IPR_HOST_RCB_OVERLAY_ID_16: 1714 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 1715 break; 1716 case IPR_HOST_RCB_OVERLAY_ID_17: 1717 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 1718 break; 1719 case IPR_HOST_RCB_OVERLAY_ID_20: 1720 ipr_log_fabric_error(ioa_cfg, hostrcb); 1721 break; 1722 case IPR_HOST_RCB_OVERLAY_ID_1: 1723 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 1724 default: 1725 ipr_log_generic_error(ioa_cfg, hostrcb); 1726 break; 1727 } 1728} 1729 1730/** 1731 * ipr_process_error - Op done function for an adapter error log. 1732 * @ipr_cmd: ipr command struct 1733 * 1734 * This function is the op done function for an error log host 1735 * controlled async from the adapter. It will log the error and 1736 * send the HCAM back to the adapter. 1737 * 1738 * Return value: 1739 * none 1740 **/ 1741static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 1742{ 1743 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1744 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1745 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 1746 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 1747 1748 list_del(&hostrcb->queue); 1749 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1750 1751 if (!ioasc) { 1752 ipr_handle_log_data(ioa_cfg, hostrcb); 1753 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 1754 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 1755 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 1756 dev_err(&ioa_cfg->pdev->dev, 1757 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1758 } 1759 1760 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 1761} 1762 1763/** 1764 * ipr_timeout - An internally generated op has timed out. 1765 * @ipr_cmd: ipr command struct 1766 * 1767 * This function blocks host requests and initiates an 1768 * adapter reset. 1769 * 1770 * Return value: 1771 * none 1772 **/ 1773static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 1774{ 1775 unsigned long lock_flags = 0; 1776 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1777 1778 ENTER; 1779 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 1780 1781 ioa_cfg->errors_logged++; 1782 dev_err(&ioa_cfg->pdev->dev, 1783 "Adapter being reset due to command timeout.\n"); 1784 1785 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 1786 ioa_cfg->sdt_state = GET_DUMP; 1787 1788 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 1789 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 1790 1791 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 1792 LEAVE; 1793} 1794 1795/** 1796 * ipr_oper_timeout - Adapter timed out transitioning to operational 1797 * @ipr_cmd: ipr command struct 1798 * 1799 * This function blocks host requests and initiates an 1800 * adapter reset. 1801 * 1802 * Return value: 1803 * none 1804 **/ 1805static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 1806{ 1807 unsigned long lock_flags = 0; 1808 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1809 1810 ENTER; 1811 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 1812 1813 ioa_cfg->errors_logged++; 1814 dev_err(&ioa_cfg->pdev->dev, 1815 "Adapter timed out transitioning to operational.\n"); 1816 1817 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 1818 ioa_cfg->sdt_state = GET_DUMP; 1819 1820 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 1821 if (ipr_fastfail) 1822 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 1823 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 1824 } 1825 1826 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 1827 LEAVE; 1828} 1829 1830/** 1831 * ipr_reset_reload - Reset/Reload the IOA 1832 * @ioa_cfg: ioa config struct 1833 * @shutdown_type: shutdown type 1834 * 1835 * This function resets the adapter and re-initializes it. 1836 * This function assumes that all new host commands have been stopped. 1837 * Return value: 1838 * SUCCESS / FAILED 1839 **/ 1840static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 1841 enum ipr_shutdown_type shutdown_type) 1842{ 1843 if (!ioa_cfg->in_reset_reload) 1844 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 1845 1846 spin_unlock_irq(ioa_cfg->host->host_lock); 1847 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 1848 spin_lock_irq(ioa_cfg->host->host_lock); 1849 1850 /* If we got hit with a host reset while we were already resetting 1851 the adapter for some reason, and the reset failed. */ 1852 if (ioa_cfg->ioa_is_dead) { 1853 ipr_trace; 1854 return FAILED; 1855 } 1856 1857 return SUCCESS; 1858} 1859 1860/** 1861 * ipr_find_ses_entry - Find matching SES in SES table 1862 * @res: resource entry struct of SES 1863 * 1864 * Return value: 1865 * pointer to SES table entry / NULL on failure 1866 **/ 1867static const struct ipr_ses_table_entry * 1868ipr_find_ses_entry(struct ipr_resource_entry *res) 1869{ 1870 int i, j, matches; 1871 const struct ipr_ses_table_entry *ste = ipr_ses_table; 1872 1873 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 1874 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 1875 if (ste->compare_product_id_byte[j] == 'X') { 1876 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) 1877 matches++; 1878 else 1879 break; 1880 } else 1881 matches++; 1882 } 1883 1884 if (matches == IPR_PROD_ID_LEN) 1885 return ste; 1886 } 1887 1888 return NULL; 1889} 1890 1891/** 1892 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 1893 * @ioa_cfg: ioa config struct 1894 * @bus: SCSI bus 1895 * @bus_width: bus width 1896 * 1897 * Return value: 1898 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 1899 * For a 2-byte wide SCSI bus, the maximum transfer speed is 1900 * twice the maximum transfer rate (e.g. for a wide enabled bus, 1901 * max 160MHz = max 320MB/sec). 1902 **/ 1903static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 1904{ 1905 struct ipr_resource_entry *res; 1906 const struct ipr_ses_table_entry *ste; 1907 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 1908 1909 /* Loop through each config table entry in the config table buffer */ 1910 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1911 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) 1912 continue; 1913 1914 if (bus != res->cfgte.res_addr.bus) 1915 continue; 1916 1917 if (!(ste = ipr_find_ses_entry(res))) 1918 continue; 1919 1920 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 1921 } 1922 1923 return max_xfer_rate; 1924} 1925 1926/** 1927 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 1928 * @ioa_cfg: ioa config struct 1929 * @max_delay: max delay in micro-seconds to wait 1930 * 1931 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 1932 * 1933 * Return value: 1934 * 0 on success / other on failure 1935 **/ 1936static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 1937{ 1938 volatile u32 pcii_reg; 1939 int delay = 1; 1940 1941 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 1942 while (delay < max_delay) { 1943 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 1944 1945 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 1946 return 0; 1947 1948 /* udelay cannot be used if delay is more than a few milliseconds */ 1949 if ((delay / 1000) > MAX_UDELAY_MS) 1950 mdelay(delay / 1000); 1951 else 1952 udelay(delay); 1953 1954 delay += delay; 1955 } 1956 return -EIO; 1957} 1958 1959/** 1960 * ipr_get_ldump_data_section - Dump IOA memory 1961 * @ioa_cfg: ioa config struct 1962 * @start_addr: adapter address to dump 1963 * @dest: destination kernel buffer 1964 * @length_in_words: length to dump in 4 byte words 1965 * 1966 * Return value: 1967 * 0 on success / -EIO on failure 1968 **/ 1969static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 1970 u32 start_addr, 1971 __be32 *dest, u32 length_in_words) 1972{ 1973 volatile u32 temp_pcii_reg; 1974 int i, delay = 0; 1975 1976 /* Write IOA interrupt reg starting LDUMP state */ 1977 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 1978 ioa_cfg->regs.set_uproc_interrupt_reg); 1979 1980 /* Wait for IO debug acknowledge */ 1981 if (ipr_wait_iodbg_ack(ioa_cfg, 1982 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 1983 dev_err(&ioa_cfg->pdev->dev, 1984 "IOA dump long data transfer timeout\n"); 1985 return -EIO; 1986 } 1987 1988 /* Signal LDUMP interlocked - clear IO debug ack */ 1989 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 1990 ioa_cfg->regs.clr_interrupt_reg); 1991 1992 /* Write Mailbox with starting address */ 1993 writel(start_addr, ioa_cfg->ioa_mailbox); 1994 1995 /* Signal address valid - clear IOA Reset alert */ 1996 writel(IPR_UPROCI_RESET_ALERT, 1997 ioa_cfg->regs.clr_uproc_interrupt_reg); 1998 1999 for (i = 0; i < length_in_words; i++) { 2000 /* Wait for IO debug acknowledge */ 2001 if (ipr_wait_iodbg_ack(ioa_cfg, 2002 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2003 dev_err(&ioa_cfg->pdev->dev, 2004 "IOA dump short data transfer timeout\n"); 2005 return -EIO; 2006 } 2007 2008 /* Read data from mailbox and increment destination pointer */ 2009 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2010 dest++; 2011 2012 /* For all but the last word of data, signal data received */ 2013 if (i < (length_in_words - 1)) { 2014 /* Signal dump data received - Clear IO debug Ack */ 2015 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2016 ioa_cfg->regs.clr_interrupt_reg); 2017 } 2018 } 2019 2020 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2021 writel(IPR_UPROCI_RESET_ALERT, 2022 ioa_cfg->regs.set_uproc_interrupt_reg); 2023 2024 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2025 ioa_cfg->regs.clr_uproc_interrupt_reg); 2026 2027 /* Signal dump data received - Clear IO debug Ack */ 2028 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2029 ioa_cfg->regs.clr_interrupt_reg); 2030 2031 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2032 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2033 temp_pcii_reg = 2034 readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 2035 2036 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2037 return 0; 2038 2039 udelay(10); 2040 delay += 10; 2041 } 2042 2043 return 0; 2044} 2045 2046#ifdef CONFIG_SCSI_IPR_DUMP 2047/** 2048 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2049 * @ioa_cfg: ioa config struct 2050 * @pci_address: adapter address 2051 * @length: length of data to copy 2052 * 2053 * Copy data from PCI adapter to kernel buffer. 2054 * Note: length MUST be a 4 byte multiple 2055 * Return value: 2056 * 0 on success / other on failure 2057 **/ 2058static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2059 unsigned long pci_address, u32 length) 2060{ 2061 int bytes_copied = 0; 2062 int cur_len, rc, rem_len, rem_page_len; 2063 __be32 *page; 2064 unsigned long lock_flags = 0; 2065 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2066 2067 while (bytes_copied < length && 2068 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2069 if (ioa_dump->page_offset >= PAGE_SIZE || 2070 ioa_dump->page_offset == 0) { 2071 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2072 2073 if (!page) { 2074 ipr_trace; 2075 return bytes_copied; 2076 } 2077 2078 ioa_dump->page_offset = 0; 2079 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2080 ioa_dump->next_page_index++; 2081 } else 2082 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2083 2084 rem_len = length - bytes_copied; 2085 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2086 cur_len = min(rem_len, rem_page_len); 2087 2088 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2089 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2090 rc = -EIO; 2091 } else { 2092 rc = ipr_get_ldump_data_section(ioa_cfg, 2093 pci_address + bytes_copied, 2094 &page[ioa_dump->page_offset / 4], 2095 (cur_len / sizeof(u32))); 2096 } 2097 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2098 2099 if (!rc) { 2100 ioa_dump->page_offset += cur_len; 2101 bytes_copied += cur_len; 2102 } else { 2103 ipr_trace; 2104 break; 2105 } 2106 schedule(); 2107 } 2108 2109 return bytes_copied; 2110} 2111 2112/** 2113 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2114 * @hdr: dump entry header struct 2115 * 2116 * Return value: 2117 * nothing 2118 **/ 2119static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2120{ 2121 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2122 hdr->num_elems = 1; 2123 hdr->offset = sizeof(*hdr); 2124 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2125} 2126 2127/** 2128 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2129 * @ioa_cfg: ioa config struct 2130 * @driver_dump: driver dump struct 2131 * 2132 * Return value: 2133 * nothing 2134 **/ 2135static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2136 struct ipr_driver_dump *driver_dump) 2137{ 2138 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2139 2140 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2141 driver_dump->ioa_type_entry.hdr.len = 2142 sizeof(struct ipr_dump_ioa_type_entry) - 2143 sizeof(struct ipr_dump_entry_header); 2144 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2145 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2146 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2147 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2148 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2149 ucode_vpd->minor_release[1]; 2150 driver_dump->hdr.num_entries++; 2151} 2152 2153/** 2154 * ipr_dump_version_data - Fill in the driver version in the dump. 2155 * @ioa_cfg: ioa config struct 2156 * @driver_dump: driver dump struct 2157 * 2158 * Return value: 2159 * nothing 2160 **/ 2161static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2162 struct ipr_driver_dump *driver_dump) 2163{ 2164 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2165 driver_dump->version_entry.hdr.len = 2166 sizeof(struct ipr_dump_version_entry) - 2167 sizeof(struct ipr_dump_entry_header); 2168 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2169 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2170 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2171 driver_dump->hdr.num_entries++; 2172} 2173 2174/** 2175 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2176 * @ioa_cfg: ioa config struct 2177 * @driver_dump: driver dump struct 2178 * 2179 * Return value: 2180 * nothing 2181 **/ 2182static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2183 struct ipr_driver_dump *driver_dump) 2184{ 2185 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2186 driver_dump->trace_entry.hdr.len = 2187 sizeof(struct ipr_dump_trace_entry) - 2188 sizeof(struct ipr_dump_entry_header); 2189 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2190 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2191 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2192 driver_dump->hdr.num_entries++; 2193} 2194 2195/** 2196 * ipr_dump_location_data - Fill in the IOA location in the dump. 2197 * @ioa_cfg: ioa config struct 2198 * @driver_dump: driver dump struct 2199 * 2200 * Return value: 2201 * nothing 2202 **/ 2203static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2204 struct ipr_driver_dump *driver_dump) 2205{ 2206 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2207 driver_dump->location_entry.hdr.len = 2208 sizeof(struct ipr_dump_location_entry) - 2209 sizeof(struct ipr_dump_entry_header); 2210 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2211 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2212 strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id); 2213 driver_dump->hdr.num_entries++; 2214} 2215 2216/** 2217 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2218 * @ioa_cfg: ioa config struct 2219 * @dump: dump struct 2220 * 2221 * Return value: 2222 * nothing 2223 **/ 2224static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2225{ 2226 unsigned long start_addr, sdt_word; 2227 unsigned long lock_flags = 0; 2228 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2229 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2230 u32 num_entries, start_off, end_off; 2231 u32 bytes_to_copy, bytes_copied, rc; 2232 struct ipr_sdt *sdt; 2233 int i; 2234 2235 ENTER; 2236 2237 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2238 2239 if (ioa_cfg->sdt_state != GET_DUMP) { 2240 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2241 return; 2242 } 2243 2244 start_addr = readl(ioa_cfg->ioa_mailbox); 2245 2246 if (!ipr_sdt_is_fmt2(start_addr)) { 2247 dev_err(&ioa_cfg->pdev->dev, 2248 "Invalid dump table format: %lx\n", start_addr); 2249 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2250 return; 2251 } 2252 2253 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2254 2255 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2256 2257 /* Initialize the overall dump header */ 2258 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2259 driver_dump->hdr.num_entries = 1; 2260 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2261 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2262 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2263 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2264 2265 ipr_dump_version_data(ioa_cfg, driver_dump); 2266 ipr_dump_location_data(ioa_cfg, driver_dump); 2267 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2268 ipr_dump_trace_data(ioa_cfg, driver_dump); 2269 2270 /* Update dump_header */ 2271 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2272 2273 /* IOA Dump entry */ 2274 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2275 ioa_dump->format = IPR_SDT_FMT2; 2276 ioa_dump->hdr.len = 0; 2277 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2278 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2279 2280 /* First entries in sdt are actually a list of dump addresses and 2281 lengths to gather the real dump data. sdt represents the pointer 2282 to the ioa generated dump table. Dump data will be extracted based 2283 on entries in this table */ 2284 sdt = &ioa_dump->sdt; 2285 2286 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2287 sizeof(struct ipr_sdt) / sizeof(__be32)); 2288 2289 /* Smart Dump table is ready to use and the first entry is valid */ 2290 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { 2291 dev_err(&ioa_cfg->pdev->dev, 2292 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2293 rc, be32_to_cpu(sdt->hdr.state)); 2294 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2295 ioa_cfg->sdt_state = DUMP_OBTAINED; 2296 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2297 return; 2298 } 2299 2300 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2301 2302 if (num_entries > IPR_NUM_SDT_ENTRIES) 2303 num_entries = IPR_NUM_SDT_ENTRIES; 2304 2305 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2306 2307 for (i = 0; i < num_entries; i++) { 2308 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2309 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2310 break; 2311 } 2312 2313 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2314 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); 2315 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2316 end_off = be32_to_cpu(sdt->entry[i].end_offset); 2317 2318 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { 2319 bytes_to_copy = end_off - start_off; 2320 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2321 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2322 continue; 2323 } 2324 2325 /* Copy data from adapter to driver buffers */ 2326 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2327 bytes_to_copy); 2328 2329 ioa_dump->hdr.len += bytes_copied; 2330 2331 if (bytes_copied != bytes_to_copy) { 2332 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2333 break; 2334 } 2335 } 2336 } 2337 } 2338 2339 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 2340 2341 /* Update dump_header */ 2342 driver_dump->hdr.len += ioa_dump->hdr.len; 2343 wmb(); 2344 ioa_cfg->sdt_state = DUMP_OBTAINED; 2345 LEAVE; 2346} 2347 2348#else 2349#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 2350#endif 2351 2352/** 2353 * ipr_release_dump - Free adapter dump memory 2354 * @kref: kref struct 2355 * 2356 * Return value: 2357 * nothing 2358 **/ 2359static void ipr_release_dump(struct kref *kref) 2360{ 2361 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 2362 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 2363 unsigned long lock_flags = 0; 2364 int i; 2365 2366 ENTER; 2367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2368 ioa_cfg->dump = NULL; 2369 ioa_cfg->sdt_state = INACTIVE; 2370 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2371 2372 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 2373 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 2374 2375 kfree(dump); 2376 LEAVE; 2377} 2378 2379/** 2380 * ipr_worker_thread - Worker thread 2381 * @work: ioa config struct 2382 * 2383 * Called at task level from a work thread. This function takes care 2384 * of adding and removing device from the mid-layer as configuration 2385 * changes are detected by the adapter. 2386 * 2387 * Return value: 2388 * nothing 2389 **/ 2390static void ipr_worker_thread(struct work_struct *work) 2391{ 2392 unsigned long lock_flags; 2393 struct ipr_resource_entry *res; 2394 struct scsi_device *sdev; 2395 struct ipr_dump *dump; 2396 struct ipr_ioa_cfg *ioa_cfg = 2397 container_of(work, struct ipr_ioa_cfg, work_q); 2398 u8 bus, target, lun; 2399 int did_work; 2400 2401 ENTER; 2402 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2403 2404 if (ioa_cfg->sdt_state == GET_DUMP) { 2405 dump = ioa_cfg->dump; 2406 if (!dump) { 2407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2408 return; 2409 } 2410 kref_get(&dump->kref); 2411 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2412 ipr_get_ioa_dump(ioa_cfg, dump); 2413 kref_put(&dump->kref, ipr_release_dump); 2414 2415 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2416 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 2417 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2419 return; 2420 } 2421 2422restart: 2423 do { 2424 did_work = 0; 2425 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 2426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2427 return; 2428 } 2429 2430 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2431 if (res->del_from_ml && res->sdev) { 2432 did_work = 1; 2433 sdev = res->sdev; 2434 if (!scsi_device_get(sdev)) { 2435 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 2436 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2437 scsi_remove_device(sdev); 2438 scsi_device_put(sdev); 2439 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2440 } 2441 break; 2442 } 2443 } 2444 } while(did_work); 2445 2446 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2447 if (res->add_to_ml) { 2448 bus = res->cfgte.res_addr.bus; 2449 target = res->cfgte.res_addr.target; 2450 lun = res->cfgte.res_addr.lun; 2451 res->add_to_ml = 0; 2452 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2453 scsi_add_device(ioa_cfg->host, bus, target, lun); 2454 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2455 goto restart; 2456 } 2457 } 2458 2459 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2460 kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE); 2461 LEAVE; 2462} 2463 2464#ifdef CONFIG_SCSI_IPR_TRACE 2465/** 2466 * ipr_read_trace - Dump the adapter trace 2467 * @kobj: kobject struct 2468 * @buf: buffer 2469 * @off: offset 2470 * @count: buffer size 2471 * 2472 * Return value: 2473 * number of bytes printed to buffer 2474 **/ 2475static ssize_t ipr_read_trace(struct kobject *kobj, char *buf, 2476 loff_t off, size_t count) 2477{ 2478 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 2479 struct Scsi_Host *shost = class_to_shost(cdev); 2480 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2481 unsigned long lock_flags = 0; 2482 int size = IPR_TRACE_SIZE; 2483 char *src = (char *)ioa_cfg->trace; 2484 2485 if (off > size) 2486 return 0; 2487 if (off + count > size) { 2488 size -= off; 2489 count = size; 2490 } 2491 2492 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2493 memcpy(buf, &src[off], count); 2494 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2495 return count; 2496} 2497 2498static struct bin_attribute ipr_trace_attr = { 2499 .attr = { 2500 .name = "trace", 2501 .mode = S_IRUGO, 2502 }, 2503 .size = 0, 2504 .read = ipr_read_trace, 2505}; 2506#endif 2507 2508static const struct { 2509 enum ipr_cache_state state; 2510 char *name; 2511} cache_state [] = { 2512 { CACHE_NONE, "none" }, 2513 { CACHE_DISABLED, "disabled" }, 2514 { CACHE_ENABLED, "enabled" } 2515}; 2516 2517/** 2518 * ipr_show_write_caching - Show the write caching attribute 2519 * @class_dev: class device struct 2520 * @buf: buffer 2521 * 2522 * Return value: 2523 * number of bytes printed to buffer 2524 **/ 2525static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) 2526{ 2527 struct Scsi_Host *shost = class_to_shost(class_dev); 2528 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2529 unsigned long lock_flags = 0; 2530 int i, len = 0; 2531 2532 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2533 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2534 if (cache_state[i].state == ioa_cfg->cache_state) { 2535 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); 2536 break; 2537 } 2538 } 2539 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2540 return len; 2541} 2542 2543 2544/** 2545 * ipr_store_write_caching - Enable/disable adapter write cache 2546 * @class_dev: class_device struct 2547 * @buf: buffer 2548 * @count: buffer size 2549 * 2550 * This function will enable/disable adapter write cache. 2551 * 2552 * Return value: 2553 * count on success / other on failure 2554 **/ 2555static ssize_t ipr_store_write_caching(struct class_device *class_dev, 2556 const char *buf, size_t count) 2557{ 2558 struct Scsi_Host *shost = class_to_shost(class_dev); 2559 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2560 unsigned long lock_flags = 0; 2561 enum ipr_cache_state new_state = CACHE_INVALID; 2562 int i; 2563 2564 if (!capable(CAP_SYS_ADMIN)) 2565 return -EACCES; 2566 if (ioa_cfg->cache_state == CACHE_NONE) 2567 return -EINVAL; 2568 2569 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2570 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { 2571 new_state = cache_state[i].state; 2572 break; 2573 } 2574 } 2575 2576 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) 2577 return -EINVAL; 2578 2579 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2580 if (ioa_cfg->cache_state == new_state) { 2581 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2582 return count; 2583 } 2584 2585 ioa_cfg->cache_state = new_state; 2586 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", 2587 new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); 2588 if (!ioa_cfg->in_reset_reload) 2589 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2590 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2591 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2592 2593 return count; 2594} 2595 2596static struct class_device_attribute ipr_ioa_cache_attr = { 2597 .attr = { 2598 .name = "write_cache", 2599 .mode = S_IRUGO | S_IWUSR, 2600 }, 2601 .show = ipr_show_write_caching, 2602 .store = ipr_store_write_caching 2603}; 2604 2605/** 2606 * ipr_show_fw_version - Show the firmware version 2607 * @class_dev: class device struct 2608 * @buf: buffer 2609 * 2610 * Return value: 2611 * number of bytes printed to buffer 2612 **/ 2613static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) 2614{ 2615 struct Scsi_Host *shost = class_to_shost(class_dev); 2616 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2617 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2618 unsigned long lock_flags = 0; 2619 int len; 2620 2621 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2622 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 2623 ucode_vpd->major_release, ucode_vpd->card_type, 2624 ucode_vpd->minor_release[0], 2625 ucode_vpd->minor_release[1]); 2626 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2627 return len; 2628} 2629 2630static struct class_device_attribute ipr_fw_version_attr = { 2631 .attr = { 2632 .name = "fw_version", 2633 .mode = S_IRUGO, 2634 }, 2635 .show = ipr_show_fw_version, 2636}; 2637 2638/** 2639 * ipr_show_log_level - Show the adapter's error logging level 2640 * @class_dev: class device struct 2641 * @buf: buffer 2642 * 2643 * Return value: 2644 * number of bytes printed to buffer 2645 **/ 2646static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) 2647{ 2648 struct Scsi_Host *shost = class_to_shost(class_dev); 2649 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2650 unsigned long lock_flags = 0; 2651 int len; 2652 2653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2654 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 2655 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2656 return len; 2657} 2658 2659/** 2660 * ipr_store_log_level - Change the adapter's error logging level 2661 * @class_dev: class device struct 2662 * @buf: buffer 2663 * 2664 * Return value: 2665 * number of bytes printed to buffer 2666 **/ 2667static ssize_t ipr_store_log_level(struct class_device *class_dev, 2668 const char *buf, size_t count) 2669{ 2670 struct Scsi_Host *shost = class_to_shost(class_dev); 2671 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2672 unsigned long lock_flags = 0; 2673 2674 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2675 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 2676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2677 return strlen(buf); 2678} 2679 2680static struct class_device_attribute ipr_log_level_attr = { 2681 .attr = { 2682 .name = "log_level", 2683 .mode = S_IRUGO | S_IWUSR, 2684 }, 2685 .show = ipr_show_log_level, 2686 .store = ipr_store_log_level 2687}; 2688 2689/** 2690 * ipr_store_diagnostics - IOA Diagnostics interface 2691 * @class_dev: class_device struct 2692 * @buf: buffer 2693 * @count: buffer size 2694 * 2695 * This function will reset the adapter and wait a reasonable 2696 * amount of time for any errors that the adapter might log. 2697 * 2698 * Return value: 2699 * count on success / other on failure 2700 **/ 2701static ssize_t ipr_store_diagnostics(struct class_device *class_dev, 2702 const char *buf, size_t count) 2703{ 2704 struct Scsi_Host *shost = class_to_shost(class_dev); 2705 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2706 unsigned long lock_flags = 0; 2707 int rc = count; 2708 2709 if (!capable(CAP_SYS_ADMIN)) 2710 return -EACCES; 2711 2712 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2713 while(ioa_cfg->in_reset_reload) { 2714 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2715 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2716 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2717 } 2718 2719 ioa_cfg->errors_logged = 0; 2720 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2721 2722 if (ioa_cfg->in_reset_reload) { 2723 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2724 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2725 2726 /* Wait for a second for any errors to be logged */ 2727 msleep(1000); 2728 } else { 2729 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2730 return -EIO; 2731 } 2732 2733 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2734 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 2735 rc = -EIO; 2736 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2737 2738 return rc; 2739} 2740 2741static struct class_device_attribute ipr_diagnostics_attr = { 2742 .attr = { 2743 .name = "run_diagnostics", 2744 .mode = S_IWUSR, 2745 }, 2746 .store = ipr_store_diagnostics 2747}; 2748 2749/** 2750 * ipr_show_adapter_state - Show the adapter's state 2751 * @class_dev: class device struct 2752 * @buf: buffer 2753 * 2754 * Return value: 2755 * number of bytes printed to buffer 2756 **/ 2757static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) 2758{ 2759 struct Scsi_Host *shost = class_to_shost(class_dev); 2760 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2761 unsigned long lock_flags = 0; 2762 int len; 2763 2764 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2765 if (ioa_cfg->ioa_is_dead) 2766 len = snprintf(buf, PAGE_SIZE, "offline\n"); 2767 else 2768 len = snprintf(buf, PAGE_SIZE, "online\n"); 2769 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2770 return len; 2771} 2772 2773/** 2774 * ipr_store_adapter_state - Change adapter state 2775 * @class_dev: class_device struct 2776 * @buf: buffer 2777 * @count: buffer size 2778 * 2779 * This function will change the adapter's state. 2780 * 2781 * Return value: 2782 * count on success / other on failure 2783 **/ 2784static ssize_t ipr_store_adapter_state(struct class_device *class_dev, 2785 const char *buf, size_t count) 2786{ 2787 struct Scsi_Host *shost = class_to_shost(class_dev); 2788 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2789 unsigned long lock_flags; 2790 int result = count; 2791 2792 if (!capable(CAP_SYS_ADMIN)) 2793 return -EACCES; 2794 2795 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2796 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 2797 ioa_cfg->ioa_is_dead = 0; 2798 ioa_cfg->reset_retries = 0; 2799 ioa_cfg->in_ioa_bringdown = 0; 2800 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2801 } 2802 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2803 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2804 2805 return result; 2806} 2807 2808static struct class_device_attribute ipr_ioa_state_attr = { 2809 .attr = { 2810 .name = "state", 2811 .mode = S_IRUGO | S_IWUSR, 2812 }, 2813 .show = ipr_show_adapter_state, 2814 .store = ipr_store_adapter_state 2815}; 2816 2817/** 2818 * ipr_store_reset_adapter - Reset the adapter 2819 * @class_dev: class_device struct 2820 * @buf: buffer 2821 * @count: buffer size 2822 * 2823 * This function will reset the adapter. 2824 * 2825 * Return value: 2826 * count on success / other on failure 2827 **/ 2828static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, 2829 const char *buf, size_t count) 2830{ 2831 struct Scsi_Host *shost = class_to_shost(class_dev); 2832 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2833 unsigned long lock_flags; 2834 int result = count; 2835 2836 if (!capable(CAP_SYS_ADMIN)) 2837 return -EACCES; 2838 2839 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2840 if (!ioa_cfg->in_reset_reload) 2841 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2842 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2843 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2844 2845 return result; 2846} 2847 2848static struct class_device_attribute ipr_ioa_reset_attr = { 2849 .attr = { 2850 .name = "reset_host", 2851 .mode = S_IWUSR, 2852 }, 2853 .store = ipr_store_reset_adapter 2854}; 2855 2856/** 2857 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 2858 * @buf_len: buffer length 2859 * 2860 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 2861 * list to use for microcode download 2862 * 2863 * Return value: 2864 * pointer to sglist / NULL on failure 2865 **/ 2866static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 2867{ 2868 int sg_size, order, bsize_elem, num_elem, i, j; 2869 struct ipr_sglist *sglist; 2870 struct scatterlist *scatterlist; 2871 struct page *page; 2872 2873 /* Get the minimum size per scatter/gather element */ 2874 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 2875 2876 /* Get the actual size per element */ 2877 order = get_order(sg_size); 2878 2879 /* Determine the actual number of bytes per element */ 2880 bsize_elem = PAGE_SIZE * (1 << order); 2881 2882 /* Determine the actual number of sg entries needed */ 2883 if (buf_len % bsize_elem) 2884 num_elem = (buf_len / bsize_elem) + 1; 2885 else 2886 num_elem = buf_len / bsize_elem; 2887 2888 /* Allocate a scatter/gather list for the DMA */ 2889 sglist = kzalloc(sizeof(struct ipr_sglist) + 2890 (sizeof(struct scatterlist) * (num_elem - 1)), 2891 GFP_KERNEL); 2892 2893 if (sglist == NULL) { 2894 ipr_trace; 2895 return NULL; 2896 } 2897 2898 scatterlist = sglist->scatterlist; 2899 2900 sglist->order = order; 2901 sglist->num_sg = num_elem; 2902 2903 /* Allocate a bunch of sg elements */ 2904 for (i = 0; i < num_elem; i++) { 2905 page = alloc_pages(GFP_KERNEL, order); 2906 if (!page) { 2907 ipr_trace; 2908 2909 /* Free up what we already allocated */ 2910 for (j = i - 1; j >= 0; j--) 2911 __free_pages(scatterlist[j].page, order); 2912 kfree(sglist); 2913 return NULL; 2914 } 2915 2916 scatterlist[i].page = page; 2917 } 2918 2919 return sglist; 2920} 2921 2922/** 2923 * ipr_free_ucode_buffer - Frees a microcode download buffer 2924 * @p_dnld: scatter/gather list pointer 2925 * 2926 * Free a DMA'able ucode download buffer previously allocated with 2927 * ipr_alloc_ucode_buffer 2928 * 2929 * Return value: 2930 * nothing 2931 **/ 2932static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 2933{ 2934 int i; 2935 2936 for (i = 0; i < sglist->num_sg; i++) 2937 __free_pages(sglist->scatterlist[i].page, sglist->order); 2938 2939 kfree(sglist); 2940} 2941 2942/** 2943 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 2944 * @sglist: scatter/gather list pointer 2945 * @buffer: buffer pointer 2946 * @len: buffer length 2947 * 2948 * Copy a microcode image from a user buffer into a buffer allocated by 2949 * ipr_alloc_ucode_buffer 2950 * 2951 * Return value: 2952 * 0 on success / other on failure 2953 **/ 2954static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 2955 u8 *buffer, u32 len) 2956{ 2957 int bsize_elem, i, result = 0; 2958 struct scatterlist *scatterlist; 2959 void *kaddr; 2960 2961 /* Determine the actual number of bytes per element */ 2962 bsize_elem = PAGE_SIZE * (1 << sglist->order); 2963 2964 scatterlist = sglist->scatterlist; 2965 2966 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 2967 kaddr = kmap(scatterlist[i].page); 2968 memcpy(kaddr, buffer, bsize_elem); 2969 kunmap(scatterlist[i].page); 2970 2971 scatterlist[i].length = bsize_elem; 2972 2973 if (result != 0) { 2974 ipr_trace; 2975 return result; 2976 } 2977 } 2978 2979 if (len % bsize_elem) { 2980 kaddr = kmap(scatterlist[i].page); 2981 memcpy(kaddr, buffer, len % bsize_elem); 2982 kunmap(scatterlist[i].page); 2983 2984 scatterlist[i].length = len % bsize_elem; 2985 } 2986 2987 sglist->buffer_len = len; 2988 return result; 2989} 2990 2991/** 2992 * ipr_build_ucode_ioadl - Build a microcode download IOADL 2993 * @ipr_cmd: ipr command struct 2994 * @sglist: scatter/gather list 2995 * 2996 * Builds a microcode download IOA data list (IOADL). 2997 * 2998 **/ 2999static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3000 struct ipr_sglist *sglist) 3001{ 3002 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3003 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 3004 struct scatterlist *scatterlist = sglist->scatterlist; 3005 int i; 3006 3007 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3008 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3009 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); 3010 ioarcb->write_ioadl_len = 3011 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3012 3013 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3014 ioadl[i].flags_and_data_len = 3015 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3016 ioadl[i].address = 3017 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3018 } 3019 3020 ioadl[i-1].flags_and_data_len |= 3021 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3022} 3023 3024/** 3025 * ipr_update_ioa_ucode - Update IOA's microcode 3026 * @ioa_cfg: ioa config struct 3027 * @sglist: scatter/gather list 3028 * 3029 * Initiate an adapter reset to update the IOA's microcode 3030 * 3031 * Return value: 3032 * 0 on success / -EIO on failure 3033 **/ 3034static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3035 struct ipr_sglist *sglist) 3036{ 3037 unsigned long lock_flags; 3038 3039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3040 while(ioa_cfg->in_reset_reload) { 3041 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3042 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3043 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3044 } 3045 3046 if (ioa_cfg->ucode_sglist) { 3047 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3048 dev_err(&ioa_cfg->pdev->dev, 3049 "Microcode download already in progress\n"); 3050 return -EIO; 3051 } 3052 3053 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3054 sglist->num_sg, DMA_TO_DEVICE); 3055 3056 if (!sglist->num_dma_sg) { 3057 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3058 dev_err(&ioa_cfg->pdev->dev, 3059 "Failed to map microcode download buffer!\n"); 3060 return -EIO; 3061 } 3062 3063 ioa_cfg->ucode_sglist = sglist; 3064 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3066 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3067 3068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3069 ioa_cfg->ucode_sglist = NULL; 3070 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3071 return 0; 3072} 3073 3074/** 3075 * ipr_store_update_fw - Update the firmware on the adapter 3076 * @class_dev: class_device struct 3077 * @buf: buffer 3078 * @count: buffer size 3079 * 3080 * This function will update the firmware on the adapter. 3081 * 3082 * Return value: 3083 * count on success / other on failure 3084 **/ 3085static ssize_t ipr_store_update_fw(struct class_device *class_dev, 3086 const char *buf, size_t count) 3087{ 3088 struct Scsi_Host *shost = class_to_shost(class_dev); 3089 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3090 struct ipr_ucode_image_header *image_hdr; 3091 const struct firmware *fw_entry; 3092 struct ipr_sglist *sglist; 3093 char fname[100]; 3094 char *src; 3095 int len, result, dnld_size; 3096 3097 if (!capable(CAP_SYS_ADMIN)) 3098 return -EACCES; 3099 3100 len = snprintf(fname, 99, "%s", buf); 3101 fname[len-1] = '\0'; 3102 3103 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3104 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3105 return -EIO; 3106 } 3107 3108 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3109 3110 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3111 (ioa_cfg->vpd_cbs->page3_data.card_type && 3112 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3113 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3114 release_firmware(fw_entry); 3115 return -EINVAL; 3116 } 3117 3118 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3119 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3120 sglist = ipr_alloc_ucode_buffer(dnld_size); 3121 3122 if (!sglist) { 3123 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3124 release_firmware(fw_entry); 3125 return -ENOMEM; 3126 } 3127 3128 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3129 3130 if (result) { 3131 dev_err(&ioa_cfg->pdev->dev, 3132 "Microcode buffer copy to DMA buffer failed\n"); 3133 goto out; 3134 } 3135 3136 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3137 3138 if (!result) 3139 result = count; 3140out: 3141 ipr_free_ucode_buffer(sglist); 3142 release_firmware(fw_entry); 3143 return result; 3144} 3145 3146static struct class_device_attribute ipr_update_fw_attr = { 3147 .attr = { 3148 .name = "update_fw", 3149 .mode = S_IWUSR, 3150 }, 3151 .store = ipr_store_update_fw 3152}; 3153 3154static struct class_device_attribute *ipr_ioa_attrs[] = { 3155 &ipr_fw_version_attr, 3156 &ipr_log_level_attr, 3157 &ipr_diagnostics_attr, 3158 &ipr_ioa_state_attr, 3159 &ipr_ioa_reset_attr, 3160 &ipr_update_fw_attr, 3161 &ipr_ioa_cache_attr, 3162 NULL, 3163}; 3164 3165#ifdef CONFIG_SCSI_IPR_DUMP 3166/** 3167 * ipr_read_dump - Dump the adapter 3168 * @kobj: kobject struct 3169 * @buf: buffer 3170 * @off: offset 3171 * @count: buffer size 3172 * 3173 * Return value: 3174 * number of bytes printed to buffer 3175 **/ 3176static ssize_t ipr_read_dump(struct kobject *kobj, char *buf, 3177 loff_t off, size_t count) 3178{ 3179 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 3180 struct Scsi_Host *shost = class_to_shost(cdev); 3181 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3182 struct ipr_dump *dump; 3183 unsigned long lock_flags = 0; 3184 char *src; 3185 int len; 3186 size_t rc = count; 3187 3188 if (!capable(CAP_SYS_ADMIN)) 3189 return -EACCES; 3190 3191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3192 dump = ioa_cfg->dump; 3193 3194 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3195 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3196 return 0; 3197 } 3198 kref_get(&dump->kref); 3199 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3200 3201 if (off > dump->driver_dump.hdr.len) { 3202 kref_put(&dump->kref, ipr_release_dump); 3203 return 0; 3204 } 3205 3206 if (off + count > dump->driver_dump.hdr.len) { 3207 count = dump->driver_dump.hdr.len - off; 3208 rc = count; 3209 } 3210 3211 if (count && off < sizeof(dump->driver_dump)) { 3212 if (off + count > sizeof(dump->driver_dump)) 3213 len = sizeof(dump->driver_dump) - off; 3214 else 3215 len = count; 3216 src = (u8 *)&dump->driver_dump + off; 3217 memcpy(buf, src, len); 3218 buf += len; 3219 off += len; 3220 count -= len; 3221 } 3222 3223 off -= sizeof(dump->driver_dump); 3224 3225 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3226 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3227 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3228 else 3229 len = count; 3230 src = (u8 *)&dump->ioa_dump + off; 3231 memcpy(buf, src, len); 3232 buf += len; 3233 off += len; 3234 count -= len; 3235 } 3236 3237 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3238 3239 while (count) { 3240 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3241 len = PAGE_ALIGN(off) - off; 3242 else 3243 len = count; 3244 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3245 src += off & ~PAGE_MASK; 3246 memcpy(buf, src, len); 3247 buf += len; 3248 off += len; 3249 count -= len; 3250 } 3251 3252 kref_put(&dump->kref, ipr_release_dump); 3253 return rc; 3254} 3255 3256/** 3257 * ipr_alloc_dump - Prepare for adapter dump 3258 * @ioa_cfg: ioa config struct 3259 * 3260 * Return value: 3261 * 0 on success / other on failure 3262 **/ 3263static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3264{ 3265 struct ipr_dump *dump; 3266 unsigned long lock_flags = 0; 3267 3268 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3269 3270 if (!dump) { 3271 ipr_err("Dump memory allocation failed\n"); 3272 return -ENOMEM; 3273 } 3274 3275 kref_init(&dump->kref); 3276 dump->ioa_cfg = ioa_cfg; 3277 3278 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3279 3280 if (INACTIVE != ioa_cfg->sdt_state) { 3281 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3282 kfree(dump); 3283 return 0; 3284 } 3285 3286 ioa_cfg->dump = dump; 3287 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3288 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3289 ioa_cfg->dump_taken = 1; 3290 schedule_work(&ioa_cfg->work_q); 3291 } 3292 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3293 3294 return 0; 3295} 3296 3297/** 3298 * ipr_free_dump - Free adapter dump memory 3299 * @ioa_cfg: ioa config struct 3300 * 3301 * Return value: 3302 * 0 on success / other on failure 3303 **/ 3304static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3305{ 3306 struct ipr_dump *dump; 3307 unsigned long lock_flags = 0; 3308 3309 ENTER; 3310 3311 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3312 dump = ioa_cfg->dump; 3313 if (!dump) { 3314 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3315 return 0; 3316 } 3317 3318 ioa_cfg->dump = NULL; 3319 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3320 3321 kref_put(&dump->kref, ipr_release_dump); 3322 3323 LEAVE; 3324 return 0; 3325} 3326 3327/** 3328 * ipr_write_dump - Setup dump state of adapter 3329 * @kobj: kobject struct 3330 * @buf: buffer 3331 * @off: offset 3332 * @count: buffer size 3333 * 3334 * Return value: 3335 * number of bytes printed to buffer 3336 **/ 3337static ssize_t ipr_write_dump(struct kobject *kobj, char *buf, 3338 loff_t off, size_t count) 3339{ 3340 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 3341 struct Scsi_Host *shost = class_to_shost(cdev); 3342 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3343 int rc; 3344 3345 if (!capable(CAP_SYS_ADMIN)) 3346 return -EACCES; 3347 3348 if (buf[0] == '1') 3349 rc = ipr_alloc_dump(ioa_cfg); 3350 else if (buf[0] == '0') 3351 rc = ipr_free_dump(ioa_cfg); 3352 else 3353 return -EINVAL; 3354 3355 if (rc) 3356 return rc; 3357 else 3358 return count; 3359} 3360 3361static struct bin_attribute ipr_dump_attr = { 3362 .attr = { 3363 .name = "dump", 3364 .mode = S_IRUSR | S_IWUSR, 3365 }, 3366 .size = 0, 3367 .read = ipr_read_dump, 3368 .write = ipr_write_dump 3369}; 3370#else 3371static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3372#endif 3373 3374/** 3375 * ipr_change_queue_depth - Change the device's queue depth 3376 * @sdev: scsi device struct 3377 * @qdepth: depth to set 3378 * 3379 * Return value: 3380 * actual depth set 3381 **/ 3382static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) 3383{ 3384 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3385 struct ipr_resource_entry *res; 3386 unsigned long lock_flags = 0; 3387 3388 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3389 res = (struct ipr_resource_entry *)sdev->hostdata; 3390 3391 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 3392 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 3393 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3394 3395 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 3396 return sdev->queue_depth; 3397} 3398 3399/** 3400 * ipr_change_queue_type - Change the device's queue type 3401 * @dsev: scsi device struct 3402 * @tag_type: type of tags to use 3403 * 3404 * Return value: 3405 * actual queue type set 3406 **/ 3407static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 3408{ 3409 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3410 struct ipr_resource_entry *res; 3411 unsigned long lock_flags = 0; 3412 3413 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3414 res = (struct ipr_resource_entry *)sdev->hostdata; 3415 3416 if (res) { 3417 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 3418 /* 3419 * We don't bother quiescing the device here since the 3420 * adapter firmware does it for us. 3421 */ 3422 scsi_set_tag_type(sdev, tag_type); 3423 3424 if (tag_type) 3425 scsi_activate_tcq(sdev, sdev->queue_depth); 3426 else 3427 scsi_deactivate_tcq(sdev, sdev->queue_depth); 3428 } else 3429 tag_type = 0; 3430 } else 3431 tag_type = 0; 3432 3433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3434 return tag_type; 3435} 3436 3437/** 3438 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 3439 * @dev: device struct 3440 * @buf: buffer 3441 * 3442 * Return value: 3443 * number of bytes printed to buffer 3444 **/ 3445static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 3446{ 3447 struct scsi_device *sdev = to_scsi_device(dev); 3448 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3449 struct ipr_resource_entry *res; 3450 unsigned long lock_flags = 0; 3451 ssize_t len = -ENXIO; 3452 3453 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3454 res = (struct ipr_resource_entry *)sdev->hostdata; 3455 if (res) 3456 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); 3457 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3458 return len; 3459} 3460 3461static struct device_attribute ipr_adapter_handle_attr = { 3462 .attr = { 3463 .name = "adapter_handle", 3464 .mode = S_IRUSR, 3465 }, 3466 .show = ipr_show_adapter_handle 3467}; 3468 3469static struct device_attribute *ipr_dev_attrs[] = { 3470 &ipr_adapter_handle_attr, 3471 NULL, 3472}; 3473 3474/** 3475 * ipr_biosparam - Return the HSC mapping 3476 * @sdev: scsi device struct 3477 * @block_device: block device pointer 3478 * @capacity: capacity of the device 3479 * @parm: Array containing returned HSC values. 3480 * 3481 * This function generates the HSC parms that fdisk uses. 3482 * We want to make sure we return something that places partitions 3483 * on 4k boundaries for best performance with the IOA. 3484 * 3485 * Return value: 3486 * 0 on success 3487 **/ 3488static int ipr_biosparam(struct scsi_device *sdev, 3489 struct block_device *block_device, 3490 sector_t capacity, int *parm) 3491{ 3492 int heads, sectors; 3493 sector_t cylinders; 3494 3495 heads = 128; 3496 sectors = 32; 3497 3498 cylinders = capacity; 3499 sector_div(cylinders, (128 * 32)); 3500 3501 /* return result */ 3502 parm[0] = heads; 3503 parm[1] = sectors; 3504 parm[2] = cylinders; 3505 3506 return 0; 3507} 3508 3509/** 3510 * ipr_find_starget - Find target based on bus/target. 3511 * @starget: scsi target struct 3512 * 3513 * Return value: 3514 * resource entry pointer if found / NULL if not found 3515 **/ 3516static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 3517{ 3518 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3519 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3520 struct ipr_resource_entry *res; 3521 3522 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3523 if ((res->cfgte.res_addr.bus == starget->channel) && 3524 (res->cfgte.res_addr.target == starget->id) && 3525 (res->cfgte.res_addr.lun == 0)) { 3526 return res; 3527 } 3528 } 3529 3530 return NULL; 3531} 3532 3533static struct ata_port_info sata_port_info; 3534 3535/** 3536 * ipr_target_alloc - Prepare for commands to a SCSI target 3537 * @starget: scsi target struct 3538 * 3539 * If the device is a SATA device, this function allocates an 3540 * ATA port with libata, else it does nothing. 3541 * 3542 * Return value: 3543 * 0 on success / non-0 on failure 3544 **/ 3545static int ipr_target_alloc(struct scsi_target *starget) 3546{ 3547 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3548 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3549 struct ipr_sata_port *sata_port; 3550 struct ata_port *ap; 3551 struct ipr_resource_entry *res; 3552 unsigned long lock_flags; 3553 3554 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3555 res = ipr_find_starget(starget); 3556 starget->hostdata = NULL; 3557 3558 if (res && ipr_is_gata(res)) { 3559 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3560 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 3561 if (!sata_port) 3562 return -ENOMEM; 3563 3564 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 3565 if (ap) { 3566 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3567 sata_port->ioa_cfg = ioa_cfg; 3568 sata_port->ap = ap; 3569 sata_port->res = res; 3570 3571 res->sata_port = sata_port; 3572 ap->private_data = sata_port; 3573 starget->hostdata = sata_port; 3574 } else { 3575 kfree(sata_port); 3576 return -ENOMEM; 3577 } 3578 } 3579 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3580 3581 return 0; 3582} 3583 3584/** 3585 * ipr_target_destroy - Destroy a SCSI target 3586 * @starget: scsi target struct 3587 * 3588 * If the device was a SATA device, this function frees the libata 3589 * ATA port, else it does nothing. 3590 * 3591 **/ 3592static void ipr_target_destroy(struct scsi_target *starget) 3593{ 3594 struct ipr_sata_port *sata_port = starget->hostdata; 3595 3596 if (sata_port) { 3597 starget->hostdata = NULL; 3598 ata_sas_port_destroy(sata_port->ap); 3599 kfree(sata_port); 3600 } 3601} 3602 3603/** 3604 * ipr_find_sdev - Find device based on bus/target/lun. 3605 * @sdev: scsi device struct 3606 * 3607 * Return value: 3608 * resource entry pointer if found / NULL if not found 3609 **/ 3610static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 3611{ 3612 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3613 struct ipr_resource_entry *res; 3614 3615 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3616 if ((res->cfgte.res_addr.bus == sdev->channel) && 3617 (res->cfgte.res_addr.target == sdev->id) && 3618 (res->cfgte.res_addr.lun == sdev->lun)) 3619 return res; 3620 } 3621 3622 return NULL; 3623} 3624 3625/** 3626 * ipr_slave_destroy - Unconfigure a SCSI device 3627 * @sdev: scsi device struct 3628 * 3629 * Return value: 3630 * nothing 3631 **/ 3632static void ipr_slave_destroy(struct scsi_device *sdev) 3633{ 3634 struct ipr_resource_entry *res; 3635 struct ipr_ioa_cfg *ioa_cfg; 3636 unsigned long lock_flags = 0; 3637 3638 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3639 3640 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3641 res = (struct ipr_resource_entry *) sdev->hostdata; 3642 if (res) { 3643 if (res->sata_port) 3644 ata_port_disable(res->sata_port->ap); 3645 sdev->hostdata = NULL; 3646 res->sdev = NULL; 3647 res->sata_port = NULL; 3648 } 3649 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3650} 3651 3652/** 3653 * ipr_slave_configure - Configure a SCSI device 3654 * @sdev: scsi device struct 3655 * 3656 * This function configures the specified scsi device. 3657 * 3658 * Return value: 3659 * 0 on success 3660 **/ 3661static int ipr_slave_configure(struct scsi_device *sdev) 3662{ 3663 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3664 struct ipr_resource_entry *res; 3665 unsigned long lock_flags = 0; 3666 3667 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3668 res = sdev->hostdata; 3669 if (res) { 3670 if (ipr_is_af_dasd_device(res)) 3671 sdev->type = TYPE_RAID; 3672 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 3673 sdev->scsi_level = 4; 3674 sdev->no_uld_attach = 1; 3675 } 3676 if (ipr_is_vset_device(res)) { 3677 sdev->timeout = IPR_VSET_RW_TIMEOUT; 3678 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 3679 } 3680 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 3681 sdev->allow_restart = 1; 3682 if (ipr_is_gata(res) && res->sata_port) { 3683 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 3684 ata_sas_slave_configure(sdev, res->sata_port->ap); 3685 } else { 3686 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 3687 } 3688 } 3689 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3690 return 0; 3691} 3692 3693/** 3694 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 3695 * @sdev: scsi device struct 3696 * 3697 * This function initializes an ATA port so that future commands 3698 * sent through queuecommand will work. 3699 * 3700 * Return value: 3701 * 0 on success 3702 **/ 3703static int ipr_ata_slave_alloc(struct scsi_device *sdev) 3704{ 3705 struct ipr_sata_port *sata_port = NULL; 3706 int rc = -ENXIO; 3707 3708 ENTER; 3709 if (sdev->sdev_target) 3710 sata_port = sdev->sdev_target->hostdata; 3711 if (sata_port) 3712 rc = ata_sas_port_init(sata_port->ap); 3713 if (rc) 3714 ipr_slave_destroy(sdev); 3715 3716 LEAVE; 3717 return rc; 3718} 3719 3720/** 3721 * ipr_slave_alloc - Prepare for commands to a device. 3722 * @sdev: scsi device struct 3723 * 3724 * This function saves a pointer to the resource entry 3725 * in the scsi device struct if the device exists. We 3726 * can then use this pointer in ipr_queuecommand when 3727 * handling new commands. 3728 * 3729 * Return value: 3730 * 0 on success / -ENXIO if device does not exist 3731 **/ 3732static int ipr_slave_alloc(struct scsi_device *sdev) 3733{ 3734 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3735 struct ipr_resource_entry *res; 3736 unsigned long lock_flags; 3737 int rc = -ENXIO; 3738 3739 sdev->hostdata = NULL; 3740 3741 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3742 3743 res = ipr_find_sdev(sdev); 3744 if (res) { 3745 res->sdev = sdev; 3746 res->add_to_ml = 0; 3747 res->in_erp = 0; 3748 sdev->hostdata = res; 3749 if (!ipr_is_naca_model(res)) 3750 res->needs_sync_complete = 1; 3751 rc = 0; 3752 if (ipr_is_gata(res)) { 3753 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3754 return ipr_ata_slave_alloc(sdev); 3755 } 3756 } 3757 3758 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3759 3760 return rc; 3761} 3762 3763/** 3764 * ipr_eh_host_reset - Reset the host adapter 3765 * @scsi_cmd: scsi command struct 3766 * 3767 * Return value: 3768 * SUCCESS / FAILED 3769 **/ 3770static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 3771{ 3772 struct ipr_ioa_cfg *ioa_cfg; 3773 int rc; 3774 3775 ENTER; 3776 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3777 3778 dev_err(&ioa_cfg->pdev->dev, 3779 "Adapter being reset as a result of error recovery.\n"); 3780 3781 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 3782 ioa_cfg->sdt_state = GET_DUMP; 3783 3784 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 3785 3786 LEAVE; 3787 return rc; 3788} 3789 3790static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 3791{ 3792 int rc; 3793 3794 spin_lock_irq(cmd->device->host->host_lock); 3795 rc = __ipr_eh_host_reset(cmd); 3796 spin_unlock_irq(cmd->device->host->host_lock); 3797 3798 return rc; 3799} 3800 3801/** 3802 * ipr_device_reset - Reset the device 3803 * @ioa_cfg: ioa config struct 3804 * @res: resource entry struct 3805 * 3806 * This function issues a device reset to the affected device. 3807 * If the device is a SCSI device, a LUN reset will be sent 3808 * to the device first. If that does not work, a target reset 3809 * will be sent. If the device is a SATA device, a PHY reset will 3810 * be sent. 3811 * 3812 * Return value: 3813 * 0 on success / non-zero on failure 3814 **/ 3815static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 3816 struct ipr_resource_entry *res) 3817{ 3818 struct ipr_cmnd *ipr_cmd; 3819 struct ipr_ioarcb *ioarcb; 3820 struct ipr_cmd_pkt *cmd_pkt; 3821 struct ipr_ioarcb_ata_regs *regs; 3822 u32 ioasc; 3823 3824 ENTER; 3825 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 3826 ioarcb = &ipr_cmd->ioarcb; 3827 cmd_pkt = &ioarcb->cmd_pkt; 3828 regs = &ioarcb->add_data.u.regs; 3829 3830 ioarcb->res_handle = res->cfgte.res_handle; 3831 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 3832 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 3833 if (ipr_is_gata(res)) { 3834 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 3835 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); 3836 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 3837 } 3838 3839 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 3840 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 3841 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 3842 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) 3843 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 3844 sizeof(struct ipr_ioasa_gata)); 3845 3846 LEAVE; 3847 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 3848} 3849 3850/** 3851 * ipr_sata_reset - Reset the SATA port 3852 * @ap: SATA port to reset 3853 * @classes: class of the attached device 3854 * 3855 * This function issues a SATA phy reset to the affected ATA port. 3856 * 3857 * Return value: 3858 * 0 on success / non-zero on failure 3859 **/ 3860static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes, 3861 unsigned long deadline) 3862{ 3863 struct ipr_sata_port *sata_port = ap->private_data; 3864 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 3865 struct ipr_resource_entry *res; 3866 unsigned long lock_flags = 0; 3867 int rc = -ENXIO; 3868 3869 ENTER; 3870 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3871 while(ioa_cfg->in_reset_reload) { 3872 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3873 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3874 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3875 } 3876 3877 res = sata_port->res; 3878 if (res) { 3879 rc = ipr_device_reset(ioa_cfg, res); 3880 switch(res->cfgte.proto) { 3881 case IPR_PROTO_SATA: 3882 case IPR_PROTO_SAS_STP: 3883 *classes = ATA_DEV_ATA; 3884 break; 3885 case IPR_PROTO_SATA_ATAPI: 3886 case IPR_PROTO_SAS_STP_ATAPI: 3887 *classes = ATA_DEV_ATAPI; 3888 break; 3889 default: 3890 *classes = ATA_DEV_UNKNOWN; 3891 break; 3892 }; 3893 } 3894 3895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3896 LEAVE; 3897 return rc; 3898} 3899 3900/** 3901 * ipr_eh_dev_reset - Reset the device 3902 * @scsi_cmd: scsi command struct 3903 * 3904 * This function issues a device reset to the affected device. 3905 * A LUN reset will be sent to the device first. If that does 3906 * not work, a target reset will be sent. 3907 * 3908 * Return value: 3909 * SUCCESS / FAILED 3910 **/ 3911static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 3912{ 3913 struct ipr_cmnd *ipr_cmd; 3914 struct ipr_ioa_cfg *ioa_cfg; 3915 struct ipr_resource_entry *res; 3916 struct ata_port *ap; 3917 int rc = 0; 3918 3919 ENTER; 3920 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3921 res = scsi_cmd->device->hostdata; 3922 3923 if (!res) 3924 return FAILED; 3925 3926 /* 3927 * If we are currently going through reset/reload, return failed. This will force the 3928 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 3929 * reset to complete 3930 */ 3931 if (ioa_cfg->in_reset_reload) 3932 return FAILED; 3933 if (ioa_cfg->ioa_is_dead) 3934 return FAILED; 3935 3936 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 3937 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { 3938 if (ipr_cmd->scsi_cmd) 3939 ipr_cmd->done = ipr_scsi_eh_done; 3940 if (ipr_cmd->qc) 3941 ipr_cmd->done = ipr_sata_eh_done; 3942 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 3943 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 3944 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 3945 } 3946 } 3947 } 3948 3949 res->resetting_device = 1; 3950 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 3951 3952 if (ipr_is_gata(res) && res->sata_port) { 3953 ap = res->sata_port->ap; 3954 spin_unlock_irq(scsi_cmd->device->host->host_lock); 3955 ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL); 3956 spin_lock_irq(scsi_cmd->device->host->host_lock); 3957 } else 3958 rc = ipr_device_reset(ioa_cfg, res); 3959 res->resetting_device = 0; 3960 3961 LEAVE; 3962 return (rc ? FAILED : SUCCESS); 3963} 3964 3965static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 3966{ 3967 int rc; 3968 3969 spin_lock_irq(cmd->device->host->host_lock); 3970 rc = __ipr_eh_dev_reset(cmd); 3971 spin_unlock_irq(cmd->device->host->host_lock); 3972 3973 return rc; 3974} 3975 3976/** 3977 * ipr_bus_reset_done - Op done function for bus reset. 3978 * @ipr_cmd: ipr command struct 3979 * 3980 * This function is the op done function for a bus reset 3981 * 3982 * Return value: 3983 * none 3984 **/ 3985static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 3986{ 3987 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 3988 struct ipr_resource_entry *res; 3989 3990 ENTER; 3991 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3992 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, 3993 sizeof(res->cfgte.res_handle))) { 3994 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); 3995 break; 3996 } 3997 } 3998 3999 /* 4000 * If abort has not completed, indicate the reset has, else call the 4001 * abort's done function to wake the sleeping eh thread 4002 */ 4003 if (ipr_cmd->sibling->sibling) 4004 ipr_cmd->sibling->sibling = NULL; 4005 else 4006 ipr_cmd->sibling->done(ipr_cmd->sibling); 4007 4008 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4009 LEAVE; 4010} 4011 4012/** 4013 * ipr_abort_timeout - An abort task has timed out 4014 * @ipr_cmd: ipr command struct 4015 * 4016 * This function handles when an abort task times out. If this 4017 * happens we issue a bus reset since we have resources tied 4018 * up that must be freed before returning to the midlayer. 4019 * 4020 * Return value: 4021 * none 4022 **/ 4023static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4024{ 4025 struct ipr_cmnd *reset_cmd; 4026 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4027 struct ipr_cmd_pkt *cmd_pkt; 4028 unsigned long lock_flags = 0; 4029 4030 ENTER; 4031 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4032 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4033 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4034 return; 4035 } 4036 4037 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4038 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4039 ipr_cmd->sibling = reset_cmd; 4040 reset_cmd->sibling = ipr_cmd; 4041 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4042 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4043 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4044 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4045 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4046 4047 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4048 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4049 LEAVE; 4050} 4051 4052/** 4053 * ipr_cancel_op - Cancel specified op 4054 * @scsi_cmd: scsi command struct 4055 * 4056 * This function cancels specified op. 4057 * 4058 * Return value: 4059 * SUCCESS / FAILED 4060 **/ 4061static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4062{ 4063 struct ipr_cmnd *ipr_cmd; 4064 struct ipr_ioa_cfg *ioa_cfg; 4065 struct ipr_resource_entry *res; 4066 struct ipr_cmd_pkt *cmd_pkt; 4067 u32 ioasc; 4068 int op_found = 0; 4069 4070 ENTER; 4071 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4072 res = scsi_cmd->device->hostdata; 4073 4074 /* If we are currently going through reset/reload, return failed. 4075 * This will force the mid-layer to call ipr_eh_host_reset, 4076 * which will then go to sleep and wait for the reset to complete 4077 */ 4078 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4079 return FAILED; 4080 if (!res || !ipr_is_gscsi(res)) 4081 return FAILED; 4082 4083 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4084 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4085 ipr_cmd->done = ipr_scsi_eh_done; 4086 op_found = 1; 4087 break; 4088 } 4089 } 4090 4091 if (!op_found) 4092 return SUCCESS; 4093 4094 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4095 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 4096 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4097 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4098 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4099 ipr_cmd->u.sdev = scsi_cmd->device; 4100 4101 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4102 scsi_cmd->cmnd[0]); 4103 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4104 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4105 4106 /* 4107 * If the abort task timed out and we sent a bus reset, we will get 4108 * one the following responses to the abort 4109 */ 4110 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4111 ioasc = 0; 4112 ipr_trace; 4113 } 4114 4115 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4116 if (!ipr_is_naca_model(res)) 4117 res->needs_sync_complete = 1; 4118 4119 LEAVE; 4120 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4121} 4122 4123/** 4124 * ipr_eh_abort - Abort a single op 4125 * @scsi_cmd: scsi command struct 4126 * 4127 * Return value: 4128 * SUCCESS / FAILED 4129 **/ 4130static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4131{ 4132 unsigned long flags; 4133 int rc; 4134 4135 ENTER; 4136 4137 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4138 rc = ipr_cancel_op(scsi_cmd); 4139 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4140 4141 LEAVE; 4142 return rc; 4143} 4144 4145/** 4146 * ipr_handle_other_interrupt - Handle "other" interrupts 4147 * @ioa_cfg: ioa config struct 4148 * @int_reg: interrupt register 4149 * 4150 * Return value: 4151 * IRQ_NONE / IRQ_HANDLED 4152 **/ 4153static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4154 volatile u32 int_reg) 4155{ 4156 irqreturn_t rc = IRQ_HANDLED; 4157 4158 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4159 /* Mask the interrupt */ 4160 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4161 4162 /* Clear the interrupt */ 4163 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4164 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4165 4166 list_del(&ioa_cfg->reset_cmd->queue); 4167 del_timer(&ioa_cfg->reset_cmd->timer); 4168 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4169 } else { 4170 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4171 ioa_cfg->ioa_unit_checked = 1; 4172 else 4173 dev_err(&ioa_cfg->pdev->dev, 4174 "Permanent IOA failure. 0x%08X\n", int_reg); 4175 4176 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4177 ioa_cfg->sdt_state = GET_DUMP; 4178 4179 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4180 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4181 } 4182 4183 return rc; 4184} 4185 4186/** 4187 * ipr_isr - Interrupt service routine 4188 * @irq: irq number 4189 * @devp: pointer to ioa config struct 4190 * 4191 * Return value: 4192 * IRQ_NONE / IRQ_HANDLED 4193 **/ 4194static irqreturn_t ipr_isr(int irq, void *devp) 4195{ 4196 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4197 unsigned long lock_flags = 0; 4198 volatile u32 int_reg, int_mask_reg; 4199 u32 ioasc; 4200 u16 cmd_index; 4201 struct ipr_cmnd *ipr_cmd; 4202 irqreturn_t rc = IRQ_NONE; 4203 4204 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4205 4206 /* If interrupts are disabled, ignore the interrupt */ 4207 if (!ioa_cfg->allow_interrupts) { 4208 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4209 return IRQ_NONE; 4210 } 4211 4212 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4213 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4214 4215 /* If an interrupt on the adapter did not occur, ignore it */ 4216 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4217 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4218 return IRQ_NONE; 4219 } 4220 4221 while (1) { 4222 ipr_cmd = NULL; 4223 4224 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4225 ioa_cfg->toggle_bit) { 4226 4227 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4228 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4229 4230 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4231 ioa_cfg->errors_logged++; 4232 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); 4233 4234 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4235 ioa_cfg->sdt_state = GET_DUMP; 4236 4237 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4238 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4239 return IRQ_HANDLED; 4240 } 4241 4242 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4243 4244 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4245 4246 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4247 4248 list_del(&ipr_cmd->queue); 4249 del_timer(&ipr_cmd->timer); 4250 ipr_cmd->done(ipr_cmd); 4251 4252 rc = IRQ_HANDLED; 4253 4254 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4255 ioa_cfg->hrrq_curr++; 4256 } else { 4257 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4258 ioa_cfg->toggle_bit ^= 1u; 4259 } 4260 } 4261 4262 if (ipr_cmd != NULL) { 4263 /* Clear the PCI interrupt */ 4264 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); 4265 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4266 } else 4267 break; 4268 } 4269 4270 if (unlikely(rc == IRQ_NONE)) 4271 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4272 4273 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4274 return rc; 4275} 4276 4277/** 4278 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 4279 * @ioa_cfg: ioa config struct 4280 * @ipr_cmd: ipr command struct 4281 * 4282 * Return value: 4283 * 0 on success / -1 on failure 4284 **/ 4285static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 4286 struct ipr_cmnd *ipr_cmd) 4287{ 4288 int i; 4289 struct scatterlist *sglist; 4290 u32 length; 4291 u32 ioadl_flags = 0; 4292 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4293 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4294 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 4295 4296 length = scsi_cmd->request_bufflen; 4297 4298 if (length == 0) 4299 return 0; 4300 4301 if (scsi_cmd->use_sg) { 4302 ipr_cmd->dma_use_sg = pci_map_sg(ioa_cfg->pdev, 4303 scsi_cmd->request_buffer, 4304 scsi_cmd->use_sg, 4305 scsi_cmd->sc_data_direction); 4306 4307 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 4308 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 4309 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 4310 ioarcb->write_data_transfer_length = cpu_to_be32(length); 4311 ioarcb->write_ioadl_len = 4312 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4313 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 4314 ioadl_flags = IPR_IOADL_FLAGS_READ; 4315 ioarcb->read_data_transfer_length = cpu_to_be32(length); 4316 ioarcb->read_ioadl_len = 4317 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4318 } 4319 4320 sglist = scsi_cmd->request_buffer; 4321 4322 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) { 4323 ioadl = ioarcb->add_data.u.ioadl; 4324 ioarcb->write_ioadl_addr = 4325 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + 4326 offsetof(struct ipr_ioarcb, add_data)); 4327 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4328 } 4329 4330 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 4331 ioadl[i].flags_and_data_len = 4332 cpu_to_be32(ioadl_flags | sg_dma_len(&sglist[i])); 4333 ioadl[i].address = 4334 cpu_to_be32(sg_dma_address(&sglist[i])); 4335 } 4336 4337 if (likely(ipr_cmd->dma_use_sg)) { 4338 ioadl[i-1].flags_and_data_len |= 4339 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 4340 return 0; 4341 } else 4342 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 4343 } else { 4344 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 4345 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 4346 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 4347 ioarcb->write_data_transfer_length = cpu_to_be32(length); 4348 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 4349 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 4350 ioadl_flags = IPR_IOADL_FLAGS_READ; 4351 ioarcb->read_data_transfer_length = cpu_to_be32(length); 4352 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 4353 } 4354 4355 ipr_cmd->dma_handle = pci_map_single(ioa_cfg->pdev, 4356 scsi_cmd->request_buffer, length, 4357 scsi_cmd->sc_data_direction); 4358 4359 if (likely(!pci_dma_mapping_error(ipr_cmd->dma_handle))) { 4360 ioadl = ioarcb->add_data.u.ioadl; 4361 ioarcb->write_ioadl_addr = 4362 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + 4363 offsetof(struct ipr_ioarcb, add_data)); 4364 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4365 ipr_cmd->dma_use_sg = 1; 4366 ioadl[0].flags_and_data_len = 4367 cpu_to_be32(ioadl_flags | length | IPR_IOADL_FLAGS_LAST); 4368 ioadl[0].address = cpu_to_be32(ipr_cmd->dma_handle); 4369 return 0; 4370 } else 4371 dev_err(&ioa_cfg->pdev->dev, "pci_map_single failed!\n"); 4372 } 4373 4374 return -1; 4375} 4376 4377/** 4378 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 4379 * @scsi_cmd: scsi command struct 4380 * 4381 * Return value: 4382 * task attributes 4383 **/ 4384static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 4385{ 4386 u8 tag[2]; 4387 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 4388 4389 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 4390 switch (tag[0]) { 4391 case MSG_SIMPLE_TAG: 4392 rc = IPR_FLAGS_LO_SIMPLE_TASK; 4393 break; 4394 case MSG_HEAD_TAG: 4395 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 4396 break; 4397 case MSG_ORDERED_TAG: 4398 rc = IPR_FLAGS_LO_ORDERED_TASK; 4399 break; 4400 }; 4401 } 4402 4403 return rc; 4404} 4405 4406/** 4407 * ipr_erp_done - Process completion of ERP for a device 4408 * @ipr_cmd: ipr command struct 4409 * 4410 * This function copies the sense buffer into the scsi_cmd 4411 * struct and pushes the scsi_done function. 4412 * 4413 * Return value: 4414 * nothing 4415 **/ 4416static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 4417{ 4418 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4419 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4420 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4421 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4422 4423 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4424 scsi_cmd->result |= (DID_ERROR << 16); 4425 scmd_printk(KERN_ERR, scsi_cmd, 4426 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 4427 } else { 4428 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 4429 SCSI_SENSE_BUFFERSIZE); 4430 } 4431 4432 if (res) { 4433 if (!ipr_is_naca_model(res)) 4434 res->needs_sync_complete = 1; 4435 res->in_erp = 0; 4436 } 4437 ipr_unmap_sglist(ioa_cfg, ipr_cmd); 4438 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4439 scsi_cmd->scsi_done(scsi_cmd); 4440} 4441 4442/** 4443 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 4444 * @ipr_cmd: ipr command struct 4445 * 4446 * Return value: 4447 * none 4448 **/ 4449static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 4450{ 4451 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4452 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4453 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); 4454 4455 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 4456 ioarcb->write_data_transfer_length = 0; 4457 ioarcb->read_data_transfer_length = 0; 4458 ioarcb->write_ioadl_len = 0; 4459 ioarcb->read_ioadl_len = 0; 4460 ioasa->ioasc = 0; 4461 ioasa->residual_data_len = 0; 4462 ioarcb->write_ioadl_addr = 4463 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 4464 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4465} 4466 4467/** 4468 * ipr_erp_request_sense - Send request sense to a device 4469 * @ipr_cmd: ipr command struct 4470 * 4471 * This function sends a request sense to a device as a result 4472 * of a check condition. 4473 * 4474 * Return value: 4475 * nothing 4476 **/ 4477static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 4478{ 4479 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4480 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4481 4482 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4483 ipr_erp_done(ipr_cmd); 4484 return; 4485 } 4486 4487 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4488 4489 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 4490 cmd_pkt->cdb[0] = REQUEST_SENSE; 4491 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 4492 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 4493 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4494 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 4495 4496 ipr_cmd->ioadl[0].flags_and_data_len = 4497 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); 4498 ipr_cmd->ioadl[0].address = 4499 cpu_to_be32(ipr_cmd->sense_buffer_dma); 4500 4501 ipr_cmd->ioarcb.read_ioadl_len = 4502 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 4503 ipr_cmd->ioarcb.read_data_transfer_length = 4504 cpu_to_be32(SCSI_SENSE_BUFFERSIZE); 4505 4506 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 4507 IPR_REQUEST_SENSE_TIMEOUT * 2); 4508} 4509 4510/** 4511 * ipr_erp_cancel_all - Send cancel all to a device 4512 * @ipr_cmd: ipr command struct 4513 * 4514 * This function sends a cancel all to a device to clear the 4515 * queue. If we are running TCQ on the device, QERR is set to 1, 4516 * which means all outstanding ops have been dropped on the floor. 4517 * Cancel all will return them to us. 4518 * 4519 * Return value: 4520 * nothing 4521 **/ 4522static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 4523{ 4524 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4525 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4526 struct ipr_cmd_pkt *cmd_pkt; 4527 4528 res->in_erp = 1; 4529 4530 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4531 4532 if (!scsi_get_tag_type(scsi_cmd->device)) { 4533 ipr_erp_request_sense(ipr_cmd); 4534 return; 4535 } 4536 4537 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4538 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4539 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4540 4541 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 4542 IPR_CANCEL_ALL_TIMEOUT); 4543} 4544 4545/** 4546 * ipr_dump_ioasa - Dump contents of IOASA 4547 * @ioa_cfg: ioa config struct 4548 * @ipr_cmd: ipr command struct 4549 * @res: resource entry struct 4550 * 4551 * This function is invoked by the interrupt handler when ops 4552 * fail. It will log the IOASA if appropriate. Only called 4553 * for GPDD ops. 4554 * 4555 * Return value: 4556 * none 4557 **/ 4558static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 4559 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 4560{ 4561 int i; 4562 u16 data_len; 4563 u32 ioasc, fd_ioasc; 4564 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4565 __be32 *ioasa_data = (__be32 *)ioasa; 4566 int error_index; 4567 4568 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; 4569 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; 4570 4571 if (0 == ioasc) 4572 return; 4573 4574 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 4575 return; 4576 4577 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 4578 error_index = ipr_get_error(fd_ioasc); 4579 else 4580 error_index = ipr_get_error(ioasc); 4581 4582 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 4583 /* Don't log an error if the IOA already logged one */ 4584 if (ioasa->ilid != 0) 4585 return; 4586 4587 if (!ipr_is_gscsi(res)) 4588 return; 4589 4590 if (ipr_error_table[error_index].log_ioasa == 0) 4591 return; 4592 } 4593 4594 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 4595 4596 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) 4597 data_len = sizeof(struct ipr_ioasa); 4598 else 4599 data_len = be16_to_cpu(ioasa->ret_stat_len); 4600 4601 ipr_err("IOASA Dump:\n"); 4602 4603 for (i = 0; i < data_len / 4; i += 4) { 4604 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 4605 be32_to_cpu(ioasa_data[i]), 4606 be32_to_cpu(ioasa_data[i+1]), 4607 be32_to_cpu(ioasa_data[i+2]), 4608 be32_to_cpu(ioasa_data[i+3])); 4609 } 4610} 4611 4612/** 4613 * ipr_gen_sense - Generate SCSI sense data from an IOASA 4614 * @ioasa: IOASA 4615 * @sense_buf: sense data buffer 4616 * 4617 * Return value: 4618 * none 4619 **/ 4620static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 4621{ 4622 u32 failing_lba; 4623 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 4624 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 4625 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4626 u32 ioasc = be32_to_cpu(ioasa->ioasc); 4627 4628 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 4629 4630 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 4631 return; 4632 4633 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 4634 4635 if (ipr_is_vset_device(res) && 4636 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 4637 ioasa->u.vset.failing_lba_hi != 0) { 4638 sense_buf[0] = 0x72; 4639 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 4640 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 4641 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 4642 4643 sense_buf[7] = 12; 4644 sense_buf[8] = 0; 4645 sense_buf[9] = 0x0A; 4646 sense_buf[10] = 0x80; 4647 4648 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 4649 4650 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 4651 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 4652 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 4653 sense_buf[15] = failing_lba & 0x000000ff; 4654 4655 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4656 4657 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 4658 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 4659 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 4660 sense_buf[19] = failing_lba & 0x000000ff; 4661 } else { 4662 sense_buf[0] = 0x70; 4663 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 4664 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 4665 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 4666 4667 /* Illegal request */ 4668 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 4669 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 4670 sense_buf[7] = 10; /* additional length */ 4671 4672 /* IOARCB was in error */ 4673 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 4674 sense_buf[15] = 0xC0; 4675 else /* Parameter data was invalid */ 4676 sense_buf[15] = 0x80; 4677 4678 sense_buf[16] = 4679 ((IPR_FIELD_POINTER_MASK & 4680 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; 4681 sense_buf[17] = 4682 (IPR_FIELD_POINTER_MASK & 4683 be32_to_cpu(ioasa->ioasc_specific)) & 0xff; 4684 } else { 4685 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 4686 if (ipr_is_vset_device(res)) 4687 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4688 else 4689 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 4690 4691 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 4692 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 4693 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 4694 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 4695 sense_buf[6] = failing_lba & 0x000000ff; 4696 } 4697 4698 sense_buf[7] = 6; /* additional length */ 4699 } 4700 } 4701} 4702 4703/** 4704 * ipr_get_autosense - Copy autosense data to sense buffer 4705 * @ipr_cmd: ipr command struct 4706 * 4707 * This function copies the autosense buffer to the buffer 4708 * in the scsi_cmd, if there is autosense available. 4709 * 4710 * Return value: 4711 * 1 if autosense was available / 0 if not 4712 **/ 4713static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 4714{ 4715 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4716 4717 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 4718 return 0; 4719 4720 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 4721 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 4722 SCSI_SENSE_BUFFERSIZE)); 4723 return 1; 4724} 4725 4726/** 4727 * ipr_erp_start - Process an error response for a SCSI op 4728 * @ioa_cfg: ioa config struct 4729 * @ipr_cmd: ipr command struct 4730 * 4731 * This function determines whether or not to initiate ERP 4732 * on the affected device. 4733 * 4734 * Return value: 4735 * nothing 4736 **/ 4737static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 4738 struct ipr_cmnd *ipr_cmd) 4739{ 4740 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4741 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4742 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4743 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 4744 4745 if (!res) { 4746 ipr_scsi_eh_done(ipr_cmd); 4747 return; 4748 } 4749 4750 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 4751 ipr_gen_sense(ipr_cmd); 4752 4753 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 4754 4755 switch (masked_ioasc) { 4756 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 4757 if (ipr_is_naca_model(res)) 4758 scsi_cmd->result |= (DID_ABORT << 16); 4759 else 4760 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4761 break; 4762 case IPR_IOASC_IR_RESOURCE_HANDLE: 4763 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 4764 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4765 break; 4766 case IPR_IOASC_HW_SEL_TIMEOUT: 4767 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4768 if (!ipr_is_naca_model(res)) 4769 res->needs_sync_complete = 1; 4770 break; 4771 case IPR_IOASC_SYNC_REQUIRED: 4772 if (!res->in_erp) 4773 res->needs_sync_complete = 1; 4774 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4775 break; 4776 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 4777 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 4778 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 4779 break; 4780 case IPR_IOASC_BUS_WAS_RESET: 4781 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 4782 /* 4783 * Report the bus reset and ask for a retry. The device 4784 * will give CC/UA the next command. 4785 */ 4786 if (!res->resetting_device) 4787 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 4788 scsi_cmd->result |= (DID_ERROR << 16); 4789 if (!ipr_is_naca_model(res)) 4790 res->needs_sync_complete = 1; 4791 break; 4792 case IPR_IOASC_HW_DEV_BUS_STATUS: 4793 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 4794 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 4795 if (!ipr_get_autosense(ipr_cmd)) { 4796 if (!ipr_is_naca_model(res)) { 4797 ipr_erp_cancel_all(ipr_cmd); 4798 return; 4799 } 4800 } 4801 } 4802 if (!ipr_is_naca_model(res)) 4803 res->needs_sync_complete = 1; 4804 break; 4805 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 4806 break; 4807 default: 4808 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 4809 scsi_cmd->result |= (DID_ERROR << 16); 4810 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 4811 res->needs_sync_complete = 1; 4812 break; 4813 } 4814 4815 ipr_unmap_sglist(ioa_cfg, ipr_cmd); 4816 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4817 scsi_cmd->scsi_done(scsi_cmd); 4818} 4819 4820/** 4821 * ipr_scsi_done - mid-layer done function 4822 * @ipr_cmd: ipr command struct 4823 * 4824 * This function is invoked by the interrupt handler for 4825 * ops generated by the SCSI mid-layer 4826 * 4827 * Return value: 4828 * none 4829 **/ 4830static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 4831{ 4832 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4833 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4834 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4835 4836 scsi_cmd->resid = be32_to_cpu(ipr_cmd->ioasa.residual_data_len); 4837 4838 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 4839 ipr_unmap_sglist(ioa_cfg, ipr_cmd); 4840 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4841 scsi_cmd->scsi_done(scsi_cmd); 4842 } else 4843 ipr_erp_start(ioa_cfg, ipr_cmd); 4844} 4845 4846/** 4847 * ipr_queuecommand - Queue a mid-layer request 4848 * @scsi_cmd: scsi command struct 4849 * @done: done function 4850 * 4851 * This function queues a request generated by the mid-layer. 4852 * 4853 * Return value: 4854 * 0 on success 4855 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 4856 * SCSI_MLQUEUE_HOST_BUSY if host is busy 4857 **/ 4858static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 4859 void (*done) (struct scsi_cmnd *)) 4860{ 4861 struct ipr_ioa_cfg *ioa_cfg; 4862 struct ipr_resource_entry *res; 4863 struct ipr_ioarcb *ioarcb; 4864 struct ipr_cmnd *ipr_cmd; 4865 int rc = 0; 4866 4867 scsi_cmd->scsi_done = done; 4868 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4869 res = scsi_cmd->device->hostdata; 4870 scsi_cmd->result = (DID_OK << 16); 4871 4872 /* 4873 * We are currently blocking all devices due to a host reset 4874 * We have told the host to stop giving us new requests, but 4875 * ERP ops don't count. FIXME 4876 */ 4877 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 4878 return SCSI_MLQUEUE_HOST_BUSY; 4879 4880 /* 4881 * FIXME - Create scsi_set_host_offline interface 4882 * and the ioa_is_dead check can be removed 4883 */ 4884 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 4885 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 4886 scsi_cmd->result = (DID_NO_CONNECT << 16); 4887 scsi_cmd->scsi_done(scsi_cmd); 4888 return 0; 4889 } 4890 4891 if (ipr_is_gata(res) && res->sata_port) 4892 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 4893 4894 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4895 ioarcb = &ipr_cmd->ioarcb; 4896 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 4897 4898 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 4899 ipr_cmd->scsi_cmd = scsi_cmd; 4900 ioarcb->res_handle = res->cfgte.res_handle; 4901 ipr_cmd->done = ipr_scsi_done; 4902 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 4903 4904 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 4905 if (scsi_cmd->underflow == 0) 4906 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4907 4908 if (res->needs_sync_complete) { 4909 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 4910 res->needs_sync_complete = 0; 4911 } 4912 4913 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 4914 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 4915 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 4916 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 4917 } 4918 4919 if (scsi_cmd->cmnd[0] >= 0xC0 && 4920 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 4921 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 4922 4923 if (likely(rc == 0)) 4924 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 4925 4926 if (likely(rc == 0)) { 4927 mb(); 4928 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 4929 ioa_cfg->regs.ioarrin_reg); 4930 } else { 4931 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4932 return SCSI_MLQUEUE_HOST_BUSY; 4933 } 4934 4935 return 0; 4936} 4937 4938/** 4939 * ipr_ioctl - IOCTL handler 4940 * @sdev: scsi device struct 4941 * @cmd: IOCTL cmd 4942 * @arg: IOCTL arg 4943 * 4944 * Return value: 4945 * 0 on success / other on failure 4946 **/ 4947static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 4948{ 4949 struct ipr_resource_entry *res; 4950 4951 res = (struct ipr_resource_entry *)sdev->hostdata; 4952 if (res && ipr_is_gata(res)) 4953 return ata_scsi_ioctl(sdev, cmd, arg); 4954 4955 return -EINVAL; 4956} 4957 4958/** 4959 * ipr_info - Get information about the card/driver 4960 * @scsi_host: scsi host struct 4961 * 4962 * Return value: 4963 * pointer to buffer with description string 4964 **/ 4965static const char * ipr_ioa_info(struct Scsi_Host *host) 4966{ 4967 static char buffer[512]; 4968 struct ipr_ioa_cfg *ioa_cfg; 4969 unsigned long lock_flags = 0; 4970 4971 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 4972 4973 spin_lock_irqsave(host->host_lock, lock_flags); 4974 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 4975 spin_unlock_irqrestore(host->host_lock, lock_flags); 4976 4977 return buffer; 4978} 4979 4980static struct scsi_host_template driver_template = { 4981 .module = THIS_MODULE, 4982 .name = "IPR", 4983 .info = ipr_ioa_info, 4984 .ioctl = ipr_ioctl, 4985 .queuecommand = ipr_queuecommand, 4986 .eh_abort_handler = ipr_eh_abort, 4987 .eh_device_reset_handler = ipr_eh_dev_reset, 4988 .eh_host_reset_handler = ipr_eh_host_reset, 4989 .slave_alloc = ipr_slave_alloc, 4990 .slave_configure = ipr_slave_configure, 4991 .slave_destroy = ipr_slave_destroy, 4992 .target_alloc = ipr_target_alloc, 4993 .target_destroy = ipr_target_destroy, 4994 .change_queue_depth = ipr_change_queue_depth, 4995 .change_queue_type = ipr_change_queue_type, 4996 .bios_param = ipr_biosparam, 4997 .can_queue = IPR_MAX_COMMANDS, 4998 .this_id = -1, 4999 .sg_tablesize = IPR_MAX_SGLIST, 5000 .max_sectors = IPR_IOA_MAX_SECTORS, 5001 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5002 .use_clustering = ENABLE_CLUSTERING, 5003 .shost_attrs = ipr_ioa_attrs, 5004 .sdev_attrs = ipr_dev_attrs, 5005 .proc_name = IPR_NAME 5006}; 5007 5008/** 5009 * ipr_ata_phy_reset - libata phy_reset handler 5010 * @ap: ata port to reset 5011 * 5012 **/ 5013static void ipr_ata_phy_reset(struct ata_port *ap) 5014{ 5015 unsigned long flags; 5016 struct ipr_sata_port *sata_port = ap->private_data; 5017 struct ipr_resource_entry *res = sata_port->res; 5018 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5019 int rc; 5020 5021 ENTER; 5022 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5023 while(ioa_cfg->in_reset_reload) { 5024 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5025 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5026 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5027 } 5028 5029 if (!ioa_cfg->allow_cmds) 5030 goto out_unlock; 5031 5032 rc = ipr_device_reset(ioa_cfg, res); 5033 5034 if (rc) { 5035 ap->ops->port_disable(ap); 5036 goto out_unlock; 5037 } 5038 5039 switch(res->cfgte.proto) { 5040 case IPR_PROTO_SATA: 5041 case IPR_PROTO_SAS_STP: 5042 ap->device[0].class = ATA_DEV_ATA; 5043 break; 5044 case IPR_PROTO_SATA_ATAPI: 5045 case IPR_PROTO_SAS_STP_ATAPI: 5046 ap->device[0].class = ATA_DEV_ATAPI; 5047 break; 5048 default: 5049 ap->device[0].class = ATA_DEV_UNKNOWN; 5050 ap->ops->port_disable(ap); 5051 break; 5052 }; 5053 5054out_unlock: 5055 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5056 LEAVE; 5057} 5058 5059/** 5060 * ipr_ata_post_internal - Cleanup after an internal command 5061 * @qc: ATA queued command 5062 * 5063 * Return value: 5064 * none 5065 **/ 5066static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5067{ 5068 struct ipr_sata_port *sata_port = qc->ap->private_data; 5069 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5070 struct ipr_cmnd *ipr_cmd; 5071 unsigned long flags; 5072 5073 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5074 while(ioa_cfg->in_reset_reload) { 5075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5076 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5077 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5078 } 5079 5080 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5081 if (ipr_cmd->qc == qc) { 5082 ipr_device_reset(ioa_cfg, sata_port->res); 5083 break; 5084 } 5085 } 5086 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5087} 5088 5089/** 5090 * ipr_tf_read - Read the current ATA taskfile for the ATA port 5091 * @ap: ATA port 5092 * @tf: destination ATA taskfile 5093 * 5094 * Return value: 5095 * none 5096 **/ 5097static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf) 5098{ 5099 struct ipr_sata_port *sata_port = ap->private_data; 5100 struct ipr_ioasa_gata *g = &sata_port->ioasa; 5101 5102 tf->feature = g->error; 5103 tf->nsect = g->nsect; 5104 tf->lbal = g->lbal; 5105 tf->lbam = g->lbam; 5106 tf->lbah = g->lbah; 5107 tf->device = g->device; 5108 tf->command = g->status; 5109 tf->hob_nsect = g->hob_nsect; 5110 tf->hob_lbal = g->hob_lbal; 5111 tf->hob_lbam = g->hob_lbam; 5112 tf->hob_lbah = g->hob_lbah; 5113 tf->ctl = g->alt_status; 5114} 5115 5116/** 5117 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5118 * @regs: destination 5119 * @tf: source ATA taskfile 5120 * 5121 * Return value: 5122 * none 5123 **/ 5124static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5125 struct ata_taskfile *tf) 5126{ 5127 regs->feature = tf->feature; 5128 regs->nsect = tf->nsect; 5129 regs->lbal = tf->lbal; 5130 regs->lbam = tf->lbam; 5131 regs->lbah = tf->lbah; 5132 regs->device = tf->device; 5133 regs->command = tf->command; 5134 regs->hob_feature = tf->hob_feature; 5135 regs->hob_nsect = tf->hob_nsect; 5136 regs->hob_lbal = tf->hob_lbal; 5137 regs->hob_lbam = tf->hob_lbam; 5138 regs->hob_lbah = tf->hob_lbah; 5139 regs->ctl = tf->ctl; 5140} 5141 5142/** 5143 * ipr_sata_done - done function for SATA commands 5144 * @ipr_cmd: ipr command struct 5145 * 5146 * This function is invoked by the interrupt handler for 5147 * ops generated by the SCSI mid-layer to SATA devices 5148 * 5149 * Return value: 5150 * none 5151 **/ 5152static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5153{ 5154 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5155 struct ata_queued_cmd *qc = ipr_cmd->qc; 5156 struct ipr_sata_port *sata_port = qc->ap->private_data; 5157 struct ipr_resource_entry *res = sata_port->res; 5158 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5159 5160 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 5161 sizeof(struct ipr_ioasa_gata)); 5162 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5163 5164 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5165 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus, 5166 res->cfgte.res_addr.target); 5167 5168 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5169 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5170 else 5171 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5172 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5173 ata_qc_complete(qc); 5174} 5175 5176/** 5177 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5178 * @ipr_cmd: ipr command struct 5179 * @qc: ATA queued command 5180 * 5181 **/ 5182static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5183 struct ata_queued_cmd *qc) 5184{ 5185 u32 ioadl_flags = 0; 5186 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5187 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5188 int len = qc->nbytes + qc->pad_len; 5189 struct scatterlist *sg; 5190 5191 if (len == 0) 5192 return; 5193 5194 if (qc->dma_dir == DMA_TO_DEVICE) { 5195 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5196 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5197 ioarcb->write_data_transfer_length = cpu_to_be32(len); 5198 ioarcb->write_ioadl_len = 5199 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5200 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5201 ioadl_flags = IPR_IOADL_FLAGS_READ; 5202 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5203 ioarcb->read_ioadl_len = 5204 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5205 } 5206 5207 ata_for_each_sg(sg, qc) { 5208 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5209 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5210 if (ata_sg_is_last(sg, qc)) 5211 ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5212 else 5213 ioadl++; 5214 } 5215} 5216 5217/** 5218 * ipr_qc_issue - Issue a SATA qc to a device 5219 * @qc: queued command 5220 * 5221 * Return value: 5222 * 0 if success 5223 **/ 5224static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5225{ 5226 struct ata_port *ap = qc->ap; 5227 struct ipr_sata_port *sata_port = ap->private_data; 5228 struct ipr_resource_entry *res = sata_port->res; 5229 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5230 struct ipr_cmnd *ipr_cmd; 5231 struct ipr_ioarcb *ioarcb; 5232 struct ipr_ioarcb_ata_regs *regs; 5233 5234 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5235 return AC_ERR_SYSTEM; 5236 5237 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5238 ioarcb = &ipr_cmd->ioarcb; 5239 regs = &ioarcb->add_data.u.regs; 5240 5241 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); 5242 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); 5243 5244 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5245 ipr_cmd->qc = qc; 5246 ipr_cmd->done = ipr_sata_done; 5247 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 5248 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 5249 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5250 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5251 ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem; 5252 5253 ipr_build_ata_ioadl(ipr_cmd, qc); 5254 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5255 ipr_copy_sata_tf(regs, &qc->tf); 5256 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 5257 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 5258 5259 switch (qc->tf.protocol) { 5260 case ATA_PROT_NODATA: 5261 case ATA_PROT_PIO: 5262 break; 5263 5264 case ATA_PROT_DMA: 5265 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5266 break; 5267 5268 case ATA_PROT_ATAPI: 5269 case ATA_PROT_ATAPI_NODATA: 5270 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5271 break; 5272 5273 case ATA_PROT_ATAPI_DMA: 5274 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5275 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5276 break; 5277 5278 default: 5279 WARN_ON(1); 5280 return AC_ERR_INVALID; 5281 } 5282 5283 mb(); 5284 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), 5285 ioa_cfg->regs.ioarrin_reg); 5286 return 0; 5287} 5288 5289/** 5290 * ipr_ata_check_status - Return last ATA status 5291 * @ap: ATA port 5292 * 5293 * Return value: 5294 * ATA status 5295 **/ 5296static u8 ipr_ata_check_status(struct ata_port *ap) 5297{ 5298 struct ipr_sata_port *sata_port = ap->private_data; 5299 return sata_port->ioasa.status; 5300} 5301 5302/** 5303 * ipr_ata_check_altstatus - Return last ATA altstatus 5304 * @ap: ATA port 5305 * 5306 * Return value: 5307 * Alt ATA status 5308 **/ 5309static u8 ipr_ata_check_altstatus(struct ata_port *ap) 5310{ 5311 struct ipr_sata_port *sata_port = ap->private_data; 5312 return sata_port->ioasa.alt_status; 5313} 5314 5315static struct ata_port_operations ipr_sata_ops = { 5316 .port_disable = ata_port_disable, 5317 .check_status = ipr_ata_check_status, 5318 .check_altstatus = ipr_ata_check_altstatus, 5319 .dev_select = ata_noop_dev_select, 5320 .phy_reset = ipr_ata_phy_reset, 5321 .post_internal_cmd = ipr_ata_post_internal, 5322 .tf_read = ipr_tf_read, 5323 .qc_prep = ata_noop_qc_prep, 5324 .qc_issue = ipr_qc_issue, 5325 .port_start = ata_sas_port_start, 5326 .port_stop = ata_sas_port_stop 5327}; 5328 5329static struct ata_port_info sata_port_info = { 5330 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 5331 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 5332 .pio_mask = 0x10, /* pio4 */ 5333 .mwdma_mask = 0x07, 5334 .udma_mask = 0x7f, /* udma0-6 */ 5335 .port_ops = &ipr_sata_ops 5336}; 5337 5338#ifdef CONFIG_PPC_PSERIES 5339static const u16 ipr_blocked_processors[] = { 5340 PV_NORTHSTAR, 5341 PV_PULSAR, 5342 PV_POWER4, 5343 PV_ICESTAR, 5344 PV_SSTAR, 5345 PV_POWER4p, 5346 PV_630, 5347 PV_630p 5348}; 5349 5350/** 5351 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 5352 * @ioa_cfg: ioa cfg struct 5353 * 5354 * Adapters that use Gemstone revision < 3.1 do not work reliably on 5355 * certain pSeries hardware. This function determines if the given 5356 * adapter is in one of these confgurations or not. 5357 * 5358 * Return value: 5359 * 1 if adapter is not supported / 0 if adapter is supported 5360 **/ 5361static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 5362{ 5363 u8 rev_id; 5364 int i; 5365 5366 if (ioa_cfg->type == 0x5702) { 5367 if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID, 5368 &rev_id) == PCIBIOS_SUCCESSFUL) { 5369 if (rev_id < 4) { 5370 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 5371 if (__is_processor(ipr_blocked_processors[i])) 5372 return 1; 5373 } 5374 } 5375 } 5376 } 5377 return 0; 5378} 5379#else 5380#define ipr_invalid_adapter(ioa_cfg) 0 5381#endif 5382 5383/** 5384 * ipr_ioa_bringdown_done - IOA bring down completion. 5385 * @ipr_cmd: ipr command struct 5386 * 5387 * This function processes the completion of an adapter bring down. 5388 * It wakes any reset sleepers. 5389 * 5390 * Return value: 5391 * IPR_RC_JOB_RETURN 5392 **/ 5393static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 5394{ 5395 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5396 5397 ENTER; 5398 ioa_cfg->in_reset_reload = 0; 5399 ioa_cfg->reset_retries = 0; 5400 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5401 wake_up_all(&ioa_cfg->reset_wait_q); 5402 5403 spin_unlock_irq(ioa_cfg->host->host_lock); 5404 scsi_unblock_requests(ioa_cfg->host); 5405 spin_lock_irq(ioa_cfg->host->host_lock); 5406 LEAVE; 5407 5408 return IPR_RC_JOB_RETURN; 5409} 5410 5411/** 5412 * ipr_ioa_reset_done - IOA reset completion. 5413 * @ipr_cmd: ipr command struct 5414 * 5415 * This function processes the completion of an adapter reset. 5416 * It schedules any necessary mid-layer add/removes and 5417 * wakes any reset sleepers. 5418 * 5419 * Return value: 5420 * IPR_RC_JOB_RETURN 5421 **/ 5422static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 5423{ 5424 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5425 struct ipr_resource_entry *res; 5426 struct ipr_hostrcb *hostrcb, *temp; 5427 int i = 0; 5428 5429 ENTER; 5430 ioa_cfg->in_reset_reload = 0; 5431 ioa_cfg->allow_cmds = 1; 5432 ioa_cfg->reset_cmd = NULL; 5433 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 5434 5435 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 5436 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 5437 ipr_trace; 5438 break; 5439 } 5440 } 5441 schedule_work(&ioa_cfg->work_q); 5442 5443 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 5444 list_del(&hostrcb->queue); 5445 if (i++ < IPR_NUM_LOG_HCAMS) 5446 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 5447 else 5448 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 5449 } 5450 5451 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 5452 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 5453 5454 ioa_cfg->reset_retries = 0; 5455 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5456 wake_up_all(&ioa_cfg->reset_wait_q); 5457 5458 spin_unlock_irq(ioa_cfg->host->host_lock); 5459 scsi_unblock_requests(ioa_cfg->host); 5460 spin_lock_irq(ioa_cfg->host->host_lock); 5461 5462 if (!ioa_cfg->allow_cmds) 5463 scsi_block_requests(ioa_cfg->host); 5464 5465 LEAVE; 5466 return IPR_RC_JOB_RETURN; 5467} 5468 5469/** 5470 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 5471 * @supported_dev: supported device struct 5472 * @vpids: vendor product id struct 5473 * 5474 * Return value: 5475 * none 5476 **/ 5477static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 5478 struct ipr_std_inq_vpids *vpids) 5479{ 5480 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 5481 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 5482 supported_dev->num_records = 1; 5483 supported_dev->data_length = 5484 cpu_to_be16(sizeof(struct ipr_supported_device)); 5485 supported_dev->reserved = 0; 5486} 5487 5488/** 5489 * ipr_set_supported_devs - Send Set Supported Devices for a device 5490 * @ipr_cmd: ipr command struct 5491 * 5492 * This function send a Set Supported Devices to the adapter 5493 * 5494 * Return value: 5495 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5496 **/ 5497static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 5498{ 5499 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5500 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 5501 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5502 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5503 struct ipr_resource_entry *res = ipr_cmd->u.res; 5504 5505 ipr_cmd->job_step = ipr_ioa_reset_done; 5506 5507 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 5508 if (!ipr_is_scsi_disk(res)) 5509 continue; 5510 5511 ipr_cmd->u.res = res; 5512 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); 5513 5514 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5515 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5516 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5517 5518 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 5519 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 5520 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 5521 5522 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | 5523 sizeof(struct ipr_supported_device)); 5524 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + 5525 offsetof(struct ipr_misc_cbs, supp_dev)); 5526 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5527 ioarcb->write_data_transfer_length = 5528 cpu_to_be32(sizeof(struct ipr_supported_device)); 5529 5530 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 5531 IPR_SET_SUP_DEVICE_TIMEOUT); 5532 5533 ipr_cmd->job_step = ipr_set_supported_devs; 5534 return IPR_RC_JOB_RETURN; 5535 } 5536 5537 return IPR_RC_JOB_CONTINUE; 5538} 5539 5540/** 5541 * ipr_setup_write_cache - Disable write cache if needed 5542 * @ipr_cmd: ipr command struct 5543 * 5544 * This function sets up adapters write cache to desired setting 5545 * 5546 * Return value: 5547 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5548 **/ 5549static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) 5550{ 5551 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5552 5553 ipr_cmd->job_step = ipr_set_supported_devs; 5554 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 5555 struct ipr_resource_entry, queue); 5556 5557 if (ioa_cfg->cache_state != CACHE_DISABLED) 5558 return IPR_RC_JOB_CONTINUE; 5559 5560 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5561 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5562 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 5563 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 5564 5565 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5566 5567 return IPR_RC_JOB_RETURN; 5568} 5569 5570/** 5571 * ipr_get_mode_page - Locate specified mode page 5572 * @mode_pages: mode page buffer 5573 * @page_code: page code to find 5574 * @len: minimum required length for mode page 5575 * 5576 * Return value: 5577 * pointer to mode page / NULL on failure 5578 **/ 5579static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 5580 u32 page_code, u32 len) 5581{ 5582 struct ipr_mode_page_hdr *mode_hdr; 5583 u32 page_length; 5584 u32 length; 5585 5586 if (!mode_pages || (mode_pages->hdr.length == 0)) 5587 return NULL; 5588 5589 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 5590 mode_hdr = (struct ipr_mode_page_hdr *) 5591 (mode_pages->data + mode_pages->hdr.block_desc_len); 5592 5593 while (length) { 5594 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 5595 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 5596 return mode_hdr; 5597 break; 5598 } else { 5599 page_length = (sizeof(struct ipr_mode_page_hdr) + 5600 mode_hdr->page_length); 5601 length -= page_length; 5602 mode_hdr = (struct ipr_mode_page_hdr *) 5603 ((unsigned long)mode_hdr + page_length); 5604 } 5605 } 5606 return NULL; 5607} 5608 5609/** 5610 * ipr_check_term_power - Check for term power errors 5611 * @ioa_cfg: ioa config struct 5612 * @mode_pages: IOAFP mode pages buffer 5613 * 5614 * Check the IOAFP's mode page 28 for term power errors 5615 * 5616 * Return value: 5617 * nothing 5618 **/ 5619static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 5620 struct ipr_mode_pages *mode_pages) 5621{ 5622 int i; 5623 int entry_length; 5624 struct ipr_dev_bus_entry *bus; 5625 struct ipr_mode_page28 *mode_page; 5626 5627 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5628 sizeof(struct ipr_mode_page28)); 5629 5630 entry_length = mode_page->entry_length; 5631 5632 bus = mode_page->bus; 5633 5634 for (i = 0; i < mode_page->num_entries; i++) { 5635 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 5636 dev_err(&ioa_cfg->pdev->dev, 5637 "Term power is absent on scsi bus %d\n", 5638 bus->res_addr.bus); 5639 } 5640 5641 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 5642 } 5643} 5644 5645/** 5646 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 5647 * @ioa_cfg: ioa config struct 5648 * 5649 * Looks through the config table checking for SES devices. If 5650 * the SES device is in the SES table indicating a maximum SCSI 5651 * bus speed, the speed is limited for the bus. 5652 * 5653 * Return value: 5654 * none 5655 **/ 5656static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 5657{ 5658 u32 max_xfer_rate; 5659 int i; 5660 5661 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 5662 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 5663 ioa_cfg->bus_attr[i].bus_width); 5664 5665 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 5666 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 5667 } 5668} 5669 5670/** 5671 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 5672 * @ioa_cfg: ioa config struct 5673 * @mode_pages: mode page 28 buffer 5674 * 5675 * Updates mode page 28 based on driver configuration 5676 * 5677 * Return value: 5678 * none 5679 **/ 5680static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 5681 struct ipr_mode_pages *mode_pages) 5682{ 5683 int i, entry_length; 5684 struct ipr_dev_bus_entry *bus; 5685 struct ipr_bus_attributes *bus_attr; 5686 struct ipr_mode_page28 *mode_page; 5687 5688 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5689 sizeof(struct ipr_mode_page28)); 5690 5691 entry_length = mode_page->entry_length; 5692 5693 /* Loop for each device bus entry */ 5694 for (i = 0, bus = mode_page->bus; 5695 i < mode_page->num_entries; 5696 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 5697 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 5698 dev_err(&ioa_cfg->pdev->dev, 5699 "Invalid resource address reported: 0x%08X\n", 5700 IPR_GET_PHYS_LOC(bus->res_addr)); 5701 continue; 5702 } 5703 5704 bus_attr = &ioa_cfg->bus_attr[i]; 5705 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 5706 bus->bus_width = bus_attr->bus_width; 5707 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 5708 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 5709 if (bus_attr->qas_enabled) 5710 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 5711 else 5712 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 5713 } 5714} 5715 5716/** 5717 * ipr_build_mode_select - Build a mode select command 5718 * @ipr_cmd: ipr command struct 5719 * @res_handle: resource handle to send command to 5720 * @parm: Byte 2 of Mode Sense command 5721 * @dma_addr: DMA buffer address 5722 * @xfer_len: data transfer length 5723 * 5724 * Return value: 5725 * none 5726 **/ 5727static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 5728 __be32 res_handle, u8 parm, u32 dma_addr, 5729 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.request_type = IPR_RQTYPE_SCSICDB; 5736 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5737 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 5738 ioarcb->cmd_pkt.cdb[1] = parm; 5739 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5740 5741 ioadl->flags_and_data_len = 5742 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); 5743 ioadl->address = cpu_to_be32(dma_addr); 5744 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5745 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); 5746} 5747 5748/** 5749 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 5750 * @ipr_cmd: ipr command struct 5751 * 5752 * This function sets up the SCSI bus attributes and sends 5753 * a Mode Select for Page 28 to activate them. 5754 * 5755 * Return value: 5756 * IPR_RC_JOB_RETURN 5757 **/ 5758static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 5759{ 5760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5761 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5762 int length; 5763 5764 ENTER; 5765 ipr_scsi_bus_speed_limit(ioa_cfg); 5766 ipr_check_term_power(ioa_cfg, mode_pages); 5767 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 5768 length = mode_pages->hdr.length + 1; 5769 mode_pages->hdr.length = 0; 5770 5771 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5772 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5773 length); 5774 5775 ipr_cmd->job_step = ipr_setup_write_cache; 5776 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5777 5778 LEAVE; 5779 return IPR_RC_JOB_RETURN; 5780} 5781 5782/** 5783 * ipr_build_mode_sense - Builds a mode sense command 5784 * @ipr_cmd: ipr command struct 5785 * @res: resource entry struct 5786 * @parm: Byte 2 of mode sense command 5787 * @dma_addr: DMA address of mode sense buffer 5788 * @xfer_len: Size of DMA buffer 5789 * 5790 * Return value: 5791 * none 5792 **/ 5793static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 5794 __be32 res_handle, 5795 u8 parm, u32 dma_addr, u8 xfer_len) 5796{ 5797 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5798 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5799 5800 ioarcb->res_handle = res_handle; 5801 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 5802 ioarcb->cmd_pkt.cdb[2] = parm; 5803 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5804 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5805 5806 ioadl->flags_and_data_len = 5807 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 5808 ioadl->address = cpu_to_be32(dma_addr); 5809 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5810 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 5811} 5812 5813/** 5814 * ipr_reset_cmd_failed - Handle failure of IOA reset command 5815 * @ipr_cmd: ipr command struct 5816 * 5817 * This function handles the failure of an IOA bringup command. 5818 * 5819 * Return value: 5820 * IPR_RC_JOB_RETURN 5821 **/ 5822static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 5823{ 5824 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5825 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5826 5827 dev_err(&ioa_cfg->pdev->dev, 5828 "0x%02X failed with IOASC: 0x%08X\n", 5829 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 5830 5831 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5832 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5833 return IPR_RC_JOB_RETURN; 5834} 5835 5836/** 5837 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 5838 * @ipr_cmd: ipr command struct 5839 * 5840 * This function handles the failure of a Mode Sense to the IOAFP. 5841 * Some adapters do not handle all mode pages. 5842 * 5843 * Return value: 5844 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5845 **/ 5846static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 5847{ 5848 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5849 5850 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5851 ipr_cmd->job_step = ipr_setup_write_cache; 5852 return IPR_RC_JOB_CONTINUE; 5853 } 5854 5855 return ipr_reset_cmd_failed(ipr_cmd); 5856} 5857 5858/** 5859 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 5860 * @ipr_cmd: ipr command struct 5861 * 5862 * This function send a Page 28 mode sense to the IOA to 5863 * retrieve SCSI bus attributes. 5864 * 5865 * Return value: 5866 * IPR_RC_JOB_RETURN 5867 **/ 5868static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 5869{ 5870 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5871 5872 ENTER; 5873 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5874 0x28, ioa_cfg->vpd_cbs_dma + 5875 offsetof(struct ipr_misc_cbs, mode_pages), 5876 sizeof(struct ipr_mode_pages)); 5877 5878 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 5879 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 5880 5881 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5882 5883 LEAVE; 5884 return IPR_RC_JOB_RETURN; 5885} 5886 5887/** 5888 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 5889 * @ipr_cmd: ipr command struct 5890 * 5891 * This function enables dual IOA RAID support if possible. 5892 * 5893 * Return value: 5894 * IPR_RC_JOB_RETURN 5895 **/ 5896static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 5897{ 5898 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5899 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5900 struct ipr_mode_page24 *mode_page; 5901 int length; 5902 5903 ENTER; 5904 mode_page = ipr_get_mode_page(mode_pages, 0x24, 5905 sizeof(struct ipr_mode_page24)); 5906 5907 if (mode_page) 5908 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 5909 5910 length = mode_pages->hdr.length + 1; 5911 mode_pages->hdr.length = 0; 5912 5913 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5914 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5915 length); 5916 5917 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5918 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5919 5920 LEAVE; 5921 return IPR_RC_JOB_RETURN; 5922} 5923 5924/** 5925 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 5926 * @ipr_cmd: ipr command struct 5927 * 5928 * This function handles the failure of a Mode Sense to the IOAFP. 5929 * Some adapters do not handle all mode pages. 5930 * 5931 * Return value: 5932 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5933 **/ 5934static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 5935{ 5936 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5937 5938 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5939 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5940 return IPR_RC_JOB_CONTINUE; 5941 } 5942 5943 return ipr_reset_cmd_failed(ipr_cmd); 5944} 5945 5946/** 5947 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 5948 * @ipr_cmd: ipr command struct 5949 * 5950 * This function send a mode sense to the IOA to retrieve 5951 * the IOA Advanced Function Control mode page. 5952 * 5953 * Return value: 5954 * IPR_RC_JOB_RETURN 5955 **/ 5956static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 5957{ 5958 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5959 5960 ENTER; 5961 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5962 0x24, ioa_cfg->vpd_cbs_dma + 5963 offsetof(struct ipr_misc_cbs, mode_pages), 5964 sizeof(struct ipr_mode_pages)); 5965 5966 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 5967 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 5968 5969 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5970 5971 LEAVE; 5972 return IPR_RC_JOB_RETURN; 5973} 5974 5975/** 5976 * ipr_init_res_table - Initialize the resource table 5977 * @ipr_cmd: ipr command struct 5978 * 5979 * This function looks through the existing resource table, comparing 5980 * it with the config table. This function will take care of old/new 5981 * devices and schedule adding/removing them from the mid-layer 5982 * as appropriate. 5983 * 5984 * Return value: 5985 * IPR_RC_JOB_CONTINUE 5986 **/ 5987static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 5988{ 5989 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5990 struct ipr_resource_entry *res, *temp; 5991 struct ipr_config_table_entry *cfgte; 5992 int found, i; 5993 LIST_HEAD(old_res); 5994 5995 ENTER; 5996 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) 5997 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 5998 5999 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6000 list_move_tail(&res->queue, &old_res); 6001 6002 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { 6003 cfgte = &ioa_cfg->cfg_table->dev[i]; 6004 found = 0; 6005 6006 list_for_each_entry_safe(res, temp, &old_res, queue) { 6007 if (!memcmp(&res->cfgte.res_addr, 6008 &cfgte->res_addr, sizeof(cfgte->res_addr))) { 6009 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6010 found = 1; 6011 break; 6012 } 6013 } 6014 6015 if (!found) { 6016 if (list_empty(&ioa_cfg->free_res_q)) { 6017 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6018 break; 6019 } 6020 6021 found = 1; 6022 res = list_entry(ioa_cfg->free_res_q.next, 6023 struct ipr_resource_entry, queue); 6024 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6025 ipr_init_res_entry(res); 6026 res->add_to_ml = 1; 6027 } 6028 6029 if (found) 6030 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 6031 } 6032 6033 list_for_each_entry_safe(res, temp, &old_res, queue) { 6034 if (res->sdev) { 6035 res->del_from_ml = 1; 6036 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 6037 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6038 } else { 6039 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6040 } 6041 } 6042 6043 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6044 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6045 else 6046 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6047 6048 LEAVE; 6049 return IPR_RC_JOB_CONTINUE; 6050} 6051 6052/** 6053 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6054 * @ipr_cmd: ipr command struct 6055 * 6056 * This function sends a Query IOA Configuration command 6057 * to the adapter to retrieve the IOA configuration table. 6058 * 6059 * Return value: 6060 * IPR_RC_JOB_RETURN 6061 **/ 6062static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6063{ 6064 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6065 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6066 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6067 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6068 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6069 6070 ENTER; 6071 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6072 ioa_cfg->dual_raid = 1; 6073 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6074 ucode_vpd->major_release, ucode_vpd->card_type, 6075 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6076 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6077 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6078 6079 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6080 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; 6081 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; 6082 6083 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6084 ioarcb->read_data_transfer_length = 6085 cpu_to_be32(sizeof(struct ipr_config_table)); 6086 6087 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); 6088 ioadl->flags_and_data_len = 6089 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); 6090 6091 ipr_cmd->job_step = ipr_init_res_table; 6092 6093 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6094 6095 LEAVE; 6096 return IPR_RC_JOB_RETURN; 6097} 6098 6099/** 6100 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6101 * @ipr_cmd: ipr command struct 6102 * 6103 * This utility function sends an inquiry to the adapter. 6104 * 6105 * Return value: 6106 * none 6107 **/ 6108static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6109 u32 dma_addr, u8 xfer_len) 6110{ 6111 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6112 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6113 6114 ENTER; 6115 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6116 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6117 6118 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6119 ioarcb->cmd_pkt.cdb[1] = flags; 6120 ioarcb->cmd_pkt.cdb[2] = page; 6121 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6122 6123 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6124 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 6125 6126 ioadl->address = cpu_to_be32(dma_addr); 6127 ioadl->flags_and_data_len = 6128 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 6129 6130 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6131 LEAVE; 6132} 6133 6134/** 6135 * ipr_inquiry_page_supported - Is the given inquiry page supported 6136 * @page0: inquiry page 0 buffer 6137 * @page: page code. 6138 * 6139 * This function determines if the specified inquiry page is supported. 6140 * 6141 * Return value: 6142 * 1 if page is supported / 0 if not 6143 **/ 6144static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6145{ 6146 int i; 6147 6148 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6149 if (page0->page[i] == page) 6150 return 1; 6151 6152 return 0; 6153} 6154 6155/** 6156 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6157 * @ipr_cmd: ipr command struct 6158 * 6159 * This function sends a Page 0xD0 inquiry to the adapter 6160 * to retrieve adapter capabilities. 6161 * 6162 * Return value: 6163 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6164 **/ 6165static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6166{ 6167 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6168 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6169 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6170 6171 ENTER; 6172 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6173 memset(cap, 0, sizeof(*cap)); 6174 6175 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6176 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6177 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6178 sizeof(struct ipr_inquiry_cap)); 6179 return IPR_RC_JOB_RETURN; 6180 } 6181 6182 LEAVE; 6183 return IPR_RC_JOB_CONTINUE; 6184} 6185 6186/** 6187 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6188 * @ipr_cmd: ipr command struct 6189 * 6190 * This function sends a Page 3 inquiry to the adapter 6191 * to retrieve software VPD information. 6192 * 6193 * Return value: 6194 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6195 **/ 6196static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6197{ 6198 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6199 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6200 6201 ENTER; 6202 6203 if (!ipr_inquiry_page_supported(page0, 1)) 6204 ioa_cfg->cache_state = CACHE_NONE; 6205 6206 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6207 6208 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6209 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6210 sizeof(struct ipr_inquiry_page3)); 6211 6212 LEAVE; 6213 return IPR_RC_JOB_RETURN; 6214} 6215 6216/** 6217 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6218 * @ipr_cmd: ipr command struct 6219 * 6220 * This function sends a Page 0 inquiry to the adapter 6221 * to retrieve supported inquiry pages. 6222 * 6223 * Return value: 6224 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6225 **/ 6226static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6227{ 6228 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6229 char type[5]; 6230 6231 ENTER; 6232 6233 /* Grab the type out of the VPD and store it away */ 6234 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6235 type[4] = '\0'; 6236 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6237 6238 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6239 6240 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6241 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6242 sizeof(struct ipr_inquiry_page0)); 6243 6244 LEAVE; 6245 return IPR_RC_JOB_RETURN; 6246} 6247 6248/** 6249 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6250 * @ipr_cmd: ipr command struct 6251 * 6252 * This function sends a standard inquiry to the adapter. 6253 * 6254 * Return value: 6255 * IPR_RC_JOB_RETURN 6256 **/ 6257static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6258{ 6259 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6260 6261 ENTER; 6262 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6263 6264 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6265 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6266 sizeof(struct ipr_ioa_vpd)); 6267 6268 LEAVE; 6269 return IPR_RC_JOB_RETURN; 6270} 6271 6272/** 6273 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. 6274 * @ipr_cmd: ipr command struct 6275 * 6276 * This function send an Identify Host Request Response Queue 6277 * command to establish the HRRQ with the adapter. 6278 * 6279 * Return value: 6280 * IPR_RC_JOB_RETURN 6281 **/ 6282static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) 6283{ 6284 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6285 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6286 6287 ENTER; 6288 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 6289 6290 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 6291 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6292 6293 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6294 ioarcb->cmd_pkt.cdb[2] = 6295 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; 6296 ioarcb->cmd_pkt.cdb[3] = 6297 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; 6298 ioarcb->cmd_pkt.cdb[4] = 6299 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; 6300 ioarcb->cmd_pkt.cdb[5] = 6301 ((u32) ioa_cfg->host_rrq_dma) & 0xff; 6302 ioarcb->cmd_pkt.cdb[7] = 6303 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 6304 ioarcb->cmd_pkt.cdb[8] = 6305 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 6306 6307 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 6308 6309 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6310 6311 LEAVE; 6312 return IPR_RC_JOB_RETURN; 6313} 6314 6315/** 6316 * ipr_reset_timer_done - Adapter reset timer function 6317 * @ipr_cmd: ipr command struct 6318 * 6319 * Description: This function is used in adapter reset processing 6320 * for timing events. If the reset_cmd pointer in the IOA 6321 * config struct is not this adapter's we are doing nested 6322 * resets and fail_all_ops will take care of freeing the 6323 * command block. 6324 * 6325 * Return value: 6326 * none 6327 **/ 6328static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 6329{ 6330 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6331 unsigned long lock_flags = 0; 6332 6333 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 6334 6335 if (ioa_cfg->reset_cmd == ipr_cmd) { 6336 list_del(&ipr_cmd->queue); 6337 ipr_cmd->done(ipr_cmd); 6338 } 6339 6340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 6341} 6342 6343/** 6344 * ipr_reset_start_timer - Start a timer for adapter reset job 6345 * @ipr_cmd: ipr command struct 6346 * @timeout: timeout value 6347 * 6348 * Description: This function is used in adapter reset processing 6349 * for timing events. If the reset_cmd pointer in the IOA 6350 * config struct is not this adapter's we are doing nested 6351 * resets and fail_all_ops will take care of freeing the 6352 * command block. 6353 * 6354 * Return value: 6355 * none 6356 **/ 6357static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 6358 unsigned long timeout) 6359{ 6360 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6361 ipr_cmd->done = ipr_reset_ioa_job; 6362 6363 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6364 ipr_cmd->timer.expires = jiffies + timeout; 6365 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 6366 add_timer(&ipr_cmd->timer); 6367} 6368 6369/** 6370 * ipr_init_ioa_mem - Initialize ioa_cfg control block 6371 * @ioa_cfg: ioa cfg struct 6372 * 6373 * Return value: 6374 * nothing 6375 **/ 6376static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 6377{ 6378 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 6379 6380 /* Initialize Host RRQ pointers */ 6381 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 6382 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 6383 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 6384 ioa_cfg->toggle_bit = 1; 6385 6386 /* Zero out config table */ 6387 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); 6388} 6389 6390/** 6391 * ipr_reset_enable_ioa - Enable the IOA following a reset. 6392 * @ipr_cmd: ipr command struct 6393 * 6394 * This function reinitializes some control blocks and 6395 * enables destructive diagnostics on the adapter. 6396 * 6397 * Return value: 6398 * IPR_RC_JOB_RETURN 6399 **/ 6400static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 6401{ 6402 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6403 volatile u32 int_reg; 6404 6405 ENTER; 6406 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; 6407 ipr_init_ioa_mem(ioa_cfg); 6408 6409 ioa_cfg->allow_interrupts = 1; 6410 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6411 6412 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 6413 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 6414 ioa_cfg->regs.clr_interrupt_mask_reg); 6415 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6416 return IPR_RC_JOB_CONTINUE; 6417 } 6418 6419 /* Enable destructive diagnostics on IOA */ 6420 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); 6421 6422 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); 6423 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6424 6425 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 6426 6427 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6428 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 6429 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 6430 ipr_cmd->done = ipr_reset_ioa_job; 6431 add_timer(&ipr_cmd->timer); 6432 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6433 6434 LEAVE; 6435 return IPR_RC_JOB_RETURN; 6436} 6437 6438/** 6439 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 6440 * @ipr_cmd: ipr command struct 6441 * 6442 * This function is invoked when an adapter dump has run out 6443 * of processing time. 6444 * 6445 * Return value: 6446 * IPR_RC_JOB_CONTINUE 6447 **/ 6448static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 6449{ 6450 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6451 6452 if (ioa_cfg->sdt_state == GET_DUMP) 6453 ioa_cfg->sdt_state = ABORT_DUMP; 6454 6455 ipr_cmd->job_step = ipr_reset_alert; 6456 6457 return IPR_RC_JOB_CONTINUE; 6458} 6459 6460/** 6461 * ipr_unit_check_no_data - Log a unit check/no data error log 6462 * @ioa_cfg: ioa config struct 6463 * 6464 * Logs an error indicating the adapter unit checked, but for some 6465 * reason, we were unable to fetch the unit check buffer. 6466 * 6467 * Return value: 6468 * nothing 6469 **/ 6470static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 6471{ 6472 ioa_cfg->errors_logged++; 6473 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 6474} 6475 6476/** 6477 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 6478 * @ioa_cfg: ioa config struct 6479 * 6480 * Fetches the unit check buffer from the adapter by clocking the data 6481 * through the mailbox register. 6482 * 6483 * Return value: 6484 * nothing 6485 **/ 6486static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 6487{ 6488 unsigned long mailbox; 6489 struct ipr_hostrcb *hostrcb; 6490 struct ipr_uc_sdt sdt; 6491 int rc, length; 6492 u32 ioasc; 6493 6494 mailbox = readl(ioa_cfg->ioa_mailbox); 6495 6496 if (!ipr_sdt_is_fmt2(mailbox)) { 6497 ipr_unit_check_no_data(ioa_cfg); 6498 return; 6499 } 6500 6501 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 6502 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 6503 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 6504 6505 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || 6506 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { 6507 ipr_unit_check_no_data(ioa_cfg); 6508 return; 6509 } 6510 6511 /* Find length of the first sdt entry (UC buffer) */ 6512 length = (be32_to_cpu(sdt.entry[0].end_offset) - 6513 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; 6514 6515 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 6516 struct ipr_hostrcb, queue); 6517 list_del(&hostrcb->queue); 6518 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 6519 6520 rc = ipr_get_ldump_data_section(ioa_cfg, 6521 be32_to_cpu(sdt.entry[0].bar_str_offset), 6522 (__be32 *)&hostrcb->hcam, 6523 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 6524 6525 if (!rc) { 6526 ipr_handle_log_data(ioa_cfg, hostrcb); 6527 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 6528 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 6529 ioa_cfg->sdt_state == GET_DUMP) 6530 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 6531 } else 6532 ipr_unit_check_no_data(ioa_cfg); 6533 6534 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 6535} 6536 6537/** 6538 * ipr_reset_restore_cfg_space - Restore PCI config space. 6539 * @ipr_cmd: ipr command struct 6540 * 6541 * Description: This function restores the saved PCI config space of 6542 * the adapter, fails all outstanding ops back to the callers, and 6543 * fetches the dump/unit check if applicable to this reset. 6544 * 6545 * Return value: 6546 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6547 **/ 6548static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 6549{ 6550 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6551 int rc; 6552 6553 ENTER; 6554 rc = pci_restore_state(ioa_cfg->pdev); 6555 6556 if (rc != PCIBIOS_SUCCESSFUL) { 6557 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6558 return IPR_RC_JOB_CONTINUE; 6559 } 6560 6561 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 6562 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6563 return IPR_RC_JOB_CONTINUE; 6564 } 6565 6566 ipr_fail_all_ops(ioa_cfg); 6567 6568 if (ioa_cfg->ioa_unit_checked) { 6569 ioa_cfg->ioa_unit_checked = 0; 6570 ipr_get_unit_check_buffer(ioa_cfg); 6571 ipr_cmd->job_step = ipr_reset_alert; 6572 ipr_reset_start_timer(ipr_cmd, 0); 6573 return IPR_RC_JOB_RETURN; 6574 } 6575 6576 if (ioa_cfg->in_ioa_bringdown) { 6577 ipr_cmd->job_step = ipr_ioa_bringdown_done; 6578 } else { 6579 ipr_cmd->job_step = ipr_reset_enable_ioa; 6580 6581 if (GET_DUMP == ioa_cfg->sdt_state) { 6582 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 6583 ipr_cmd->job_step = ipr_reset_wait_for_dump; 6584 schedule_work(&ioa_cfg->work_q); 6585 return IPR_RC_JOB_RETURN; 6586 } 6587 } 6588 6589 ENTER; 6590 return IPR_RC_JOB_CONTINUE; 6591} 6592 6593/** 6594 * ipr_reset_bist_done - BIST has completed on the adapter. 6595 * @ipr_cmd: ipr command struct 6596 * 6597 * Description: Unblock config space and resume the reset process. 6598 * 6599 * Return value: 6600 * IPR_RC_JOB_CONTINUE 6601 **/ 6602static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 6603{ 6604 ENTER; 6605 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6606 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 6607 LEAVE; 6608 return IPR_RC_JOB_CONTINUE; 6609} 6610 6611/** 6612 * ipr_reset_start_bist - Run BIST on the adapter. 6613 * @ipr_cmd: ipr command struct 6614 * 6615 * Description: This function runs BIST on the adapter, then delays 2 seconds. 6616 * 6617 * Return value: 6618 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6619 **/ 6620static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 6621{ 6622 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6623 int rc; 6624 6625 ENTER; 6626 pci_block_user_cfg_access(ioa_cfg->pdev); 6627 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 6628 6629 if (rc != PCIBIOS_SUCCESSFUL) { 6630 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6631 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6632 rc = IPR_RC_JOB_CONTINUE; 6633 } else { 6634 ipr_cmd->job_step = ipr_reset_bist_done; 6635 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6636 rc = IPR_RC_JOB_RETURN; 6637 } 6638 6639 LEAVE; 6640 return rc; 6641} 6642 6643/** 6644 * ipr_reset_allowed - Query whether or not IOA can be reset 6645 * @ioa_cfg: ioa config struct 6646 * 6647 * Return value: 6648 * 0 if reset not allowed / non-zero if reset is allowed 6649 **/ 6650static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 6651{ 6652 volatile u32 temp_reg; 6653 6654 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6655 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 6656} 6657 6658/** 6659 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 6660 * @ipr_cmd: ipr command struct 6661 * 6662 * Description: This function waits for adapter permission to run BIST, 6663 * then runs BIST. If the adapter does not give permission after a 6664 * reasonable time, we will reset the adapter anyway. The impact of 6665 * resetting the adapter without warning the adapter is the risk of 6666 * losing the persistent error log on the adapter. If the adapter is 6667 * reset while it is writing to the flash on the adapter, the flash 6668 * segment will have bad ECC and be zeroed. 6669 * 6670 * Return value: 6671 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6672 **/ 6673static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 6674{ 6675 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6676 int rc = IPR_RC_JOB_RETURN; 6677 6678 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 6679 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 6680 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6681 } else { 6682 ipr_cmd->job_step = ipr_reset_start_bist; 6683 rc = IPR_RC_JOB_CONTINUE; 6684 } 6685 6686 return rc; 6687} 6688 6689/** 6690 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 6691 * @ipr_cmd: ipr command struct 6692 * 6693 * Description: This function alerts the adapter that it will be reset. 6694 * If memory space is not currently enabled, proceed directly 6695 * to running BIST on the adapter. The timer must always be started 6696 * so we guarantee we do not run BIST from ipr_isr. 6697 * 6698 * Return value: 6699 * IPR_RC_JOB_RETURN 6700 **/ 6701static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 6702{ 6703 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6704 u16 cmd_reg; 6705 int rc; 6706 6707 ENTER; 6708 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 6709 6710 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 6711 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 6712 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); 6713 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 6714 } else { 6715 ipr_cmd->job_step = ipr_reset_start_bist; 6716 } 6717 6718 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 6719 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6720 6721 LEAVE; 6722 return IPR_RC_JOB_RETURN; 6723} 6724 6725/** 6726 * ipr_reset_ucode_download_done - Microcode download completion 6727 * @ipr_cmd: ipr command struct 6728 * 6729 * Description: This function unmaps the microcode download buffer. 6730 * 6731 * Return value: 6732 * IPR_RC_JOB_CONTINUE 6733 **/ 6734static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 6735{ 6736 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6737 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6738 6739 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 6740 sglist->num_sg, DMA_TO_DEVICE); 6741 6742 ipr_cmd->job_step = ipr_reset_alert; 6743 return IPR_RC_JOB_CONTINUE; 6744} 6745 6746/** 6747 * ipr_reset_ucode_download - Download microcode to the adapter 6748 * @ipr_cmd: ipr command struct 6749 * 6750 * Description: This function checks to see if it there is microcode 6751 * to download to the adapter. If there is, a download is performed. 6752 * 6753 * Return value: 6754 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6755 **/ 6756static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 6757{ 6758 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6759 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6760 6761 ENTER; 6762 ipr_cmd->job_step = ipr_reset_alert; 6763 6764 if (!sglist) 6765 return IPR_RC_JOB_CONTINUE; 6766 6767 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6768 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6769 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 6770 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 6771 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 6772 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 6773 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 6774 6775 ipr_build_ucode_ioadl(ipr_cmd, sglist); 6776 ipr_cmd->job_step = ipr_reset_ucode_download_done; 6777 6778 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6779 IPR_WRITE_BUFFER_TIMEOUT); 6780 6781 LEAVE; 6782 return IPR_RC_JOB_RETURN; 6783} 6784 6785/** 6786 * ipr_reset_shutdown_ioa - Shutdown the adapter 6787 * @ipr_cmd: ipr command struct 6788 * 6789 * Description: This function issues an adapter shutdown of the 6790 * specified type to the specified adapter as part of the 6791 * adapter reset job. 6792 * 6793 * Return value: 6794 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6795 **/ 6796static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 6797{ 6798 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6799 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 6800 unsigned long timeout; 6801 int rc = IPR_RC_JOB_CONTINUE; 6802 6803 ENTER; 6804 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 6805 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6806 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6807 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 6808 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 6809 6810 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 6811 timeout = IPR_SHUTDOWN_TIMEOUT; 6812 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 6813 timeout = IPR_INTERNAL_TIMEOUT; 6814 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6815 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 6816 else 6817 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 6818 6819 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 6820 6821 rc = IPR_RC_JOB_RETURN; 6822 ipr_cmd->job_step = ipr_reset_ucode_download; 6823 } else 6824 ipr_cmd->job_step = ipr_reset_alert; 6825 6826 LEAVE; 6827 return rc; 6828} 6829 6830/** 6831 * ipr_reset_ioa_job - Adapter reset job 6832 * @ipr_cmd: ipr command struct 6833 * 6834 * Description: This function is the job router for the adapter reset job. 6835 * 6836 * Return value: 6837 * none 6838 **/ 6839static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 6840{ 6841 u32 rc, ioasc; 6842 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6843 6844 do { 6845 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6846 6847 if (ioa_cfg->reset_cmd != ipr_cmd) { 6848 /* 6849 * We are doing nested adapter resets and this is 6850 * not the current reset job. 6851 */ 6852 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6853 return; 6854 } 6855 6856 if (IPR_IOASC_SENSE_KEY(ioasc)) { 6857 rc = ipr_cmd->job_step_failed(ipr_cmd); 6858 if (rc == IPR_RC_JOB_RETURN) 6859 return; 6860 } 6861 6862 ipr_reinit_ipr_cmnd(ipr_cmd); 6863 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 6864 rc = ipr_cmd->job_step(ipr_cmd); 6865 } while(rc == IPR_RC_JOB_CONTINUE); 6866} 6867 6868/** 6869 * _ipr_initiate_ioa_reset - Initiate an adapter reset 6870 * @ioa_cfg: ioa config struct 6871 * @job_step: first job step of reset job 6872 * @shutdown_type: shutdown type 6873 * 6874 * Description: This function will initiate the reset of the given adapter 6875 * starting at the selected job step. 6876 * If the caller needs to wait on the completion of the reset, 6877 * the caller must sleep on the reset_wait_q. 6878 * 6879 * Return value: 6880 * none 6881 **/ 6882static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6883 int (*job_step) (struct ipr_cmnd *), 6884 enum ipr_shutdown_type shutdown_type) 6885{ 6886 struct ipr_cmnd *ipr_cmd; 6887 6888 ioa_cfg->in_reset_reload = 1; 6889 ioa_cfg->allow_cmds = 0; 6890 scsi_block_requests(ioa_cfg->host); 6891 6892 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6893 ioa_cfg->reset_cmd = ipr_cmd; 6894 ipr_cmd->job_step = job_step; 6895 ipr_cmd->u.shutdown_type = shutdown_type; 6896 6897 ipr_reset_ioa_job(ipr_cmd); 6898} 6899 6900/** 6901 * ipr_initiate_ioa_reset - Initiate an adapter reset 6902 * @ioa_cfg: ioa config struct 6903 * @shutdown_type: shutdown type 6904 * 6905 * Description: This function will initiate the reset of the given adapter. 6906 * If the caller needs to wait on the completion of the reset, 6907 * the caller must sleep on the reset_wait_q. 6908 * 6909 * Return value: 6910 * none 6911 **/ 6912static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6913 enum ipr_shutdown_type shutdown_type) 6914{ 6915 if (ioa_cfg->ioa_is_dead) 6916 return; 6917 6918 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 6919 ioa_cfg->sdt_state = ABORT_DUMP; 6920 6921 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 6922 dev_err(&ioa_cfg->pdev->dev, 6923 "IOA taken offline - error recovery failed\n"); 6924 6925 ioa_cfg->reset_retries = 0; 6926 ioa_cfg->ioa_is_dead = 1; 6927 6928 if (ioa_cfg->in_ioa_bringdown) { 6929 ioa_cfg->reset_cmd = NULL; 6930 ioa_cfg->in_reset_reload = 0; 6931 ipr_fail_all_ops(ioa_cfg); 6932 wake_up_all(&ioa_cfg->reset_wait_q); 6933 6934 spin_unlock_irq(ioa_cfg->host->host_lock); 6935 scsi_unblock_requests(ioa_cfg->host); 6936 spin_lock_irq(ioa_cfg->host->host_lock); 6937 return; 6938 } else { 6939 ioa_cfg->in_ioa_bringdown = 1; 6940 shutdown_type = IPR_SHUTDOWN_NONE; 6941 } 6942 } 6943 6944 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 6945 shutdown_type); 6946} 6947 6948/** 6949 * ipr_reset_freeze - Hold off all I/O activity 6950 * @ipr_cmd: ipr command struct 6951 * 6952 * Description: If the PCI slot is frozen, hold off all I/O 6953 * activity; then, as soon as the slot is available again, 6954 * initiate an adapter reset. 6955 */ 6956static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 6957{ 6958 /* Disallow new interrupts, avoid loop */ 6959 ipr_cmd->ioa_cfg->allow_interrupts = 0; 6960 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6961 ipr_cmd->done = ipr_reset_ioa_job; 6962 return IPR_RC_JOB_RETURN; 6963} 6964 6965/** 6966 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 6967 * @pdev: PCI device struct 6968 * 6969 * Description: This routine is called to tell us that the PCI bus 6970 * is down. Can't do anything here, except put the device driver 6971 * into a holding pattern, waiting for the PCI bus to come back. 6972 */ 6973static void ipr_pci_frozen(struct pci_dev *pdev) 6974{ 6975 unsigned long flags = 0; 6976 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6977 6978 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6979 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 6980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6981} 6982 6983/** 6984 * ipr_pci_slot_reset - Called when PCI slot has been reset. 6985 * @pdev: PCI device struct 6986 * 6987 * Description: This routine is called by the pci error recovery 6988 * code after the PCI slot has been reset, just before we 6989 * should resume normal operations. 6990 */ 6991static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 6992{ 6993 unsigned long flags = 0; 6994 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6995 6996 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6997 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 6998 IPR_SHUTDOWN_NONE); 6999 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7000 return PCI_ERS_RESULT_RECOVERED; 7001} 7002 7003/** 7004 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 7005 * @pdev: PCI device struct 7006 * 7007 * Description: This routine is called when the PCI bus has 7008 * permanently failed. 7009 */ 7010static void ipr_pci_perm_failure(struct pci_dev *pdev) 7011{ 7012 unsigned long flags = 0; 7013 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7014 7015 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7016 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7017 ioa_cfg->sdt_state = ABORT_DUMP; 7018 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 7019 ioa_cfg->in_ioa_bringdown = 1; 7020 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7021 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7022} 7023 7024/** 7025 * ipr_pci_error_detected - Called when a PCI error is detected. 7026 * @pdev: PCI device struct 7027 * @state: PCI channel state 7028 * 7029 * Description: Called when a PCI error is detected. 7030 * 7031 * Return value: 7032 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7033 */ 7034static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7035 pci_channel_state_t state) 7036{ 7037 switch (state) { 7038 case pci_channel_io_frozen: 7039 ipr_pci_frozen(pdev); 7040 return PCI_ERS_RESULT_NEED_RESET; 7041 case pci_channel_io_perm_failure: 7042 ipr_pci_perm_failure(pdev); 7043 return PCI_ERS_RESULT_DISCONNECT; 7044 break; 7045 default: 7046 break; 7047 } 7048 return PCI_ERS_RESULT_NEED_RESET; 7049} 7050 7051/** 7052 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7053 * @ioa_cfg: ioa cfg struct 7054 * 7055 * Description: This is the second phase of adapter intialization 7056 * This function takes care of initilizing the adapter to the point 7057 * where it can accept new commands. 7058 7059 * Return value: 7060 * 0 on sucess / -EIO on failure 7061 **/ 7062static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7063{ 7064 int rc = 0; 7065 unsigned long host_lock_flags = 0; 7066 7067 ENTER; 7068 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7069 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7070 if (ioa_cfg->needs_hard_reset) { 7071 ioa_cfg->needs_hard_reset = 0; 7072 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7073 } else 7074 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7075 IPR_SHUTDOWN_NONE); 7076 7077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7078 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7079 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7080 7081 if (ioa_cfg->ioa_is_dead) { 7082 rc = -EIO; 7083 } else if (ipr_invalid_adapter(ioa_cfg)) { 7084 if (!ipr_testmode) 7085 rc = -EIO; 7086 7087 dev_err(&ioa_cfg->pdev->dev, 7088 "Adapter not supported in this hardware configuration.\n"); 7089 } 7090 7091 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7092 7093 LEAVE; 7094 return rc; 7095} 7096 7097/** 7098 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7099 * @ioa_cfg: ioa config struct 7100 * 7101 * Return value: 7102 * none 7103 **/ 7104static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7105{ 7106 int i; 7107 7108 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7109 if (ioa_cfg->ipr_cmnd_list[i]) 7110 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7111 ioa_cfg->ipr_cmnd_list[i], 7112 ioa_cfg->ipr_cmnd_list_dma[i]); 7113 7114 ioa_cfg->ipr_cmnd_list[i] = NULL; 7115 } 7116 7117 if (ioa_cfg->ipr_cmd_pool) 7118 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7119 7120 ioa_cfg->ipr_cmd_pool = NULL; 7121} 7122 7123/** 7124 * ipr_free_mem - Frees memory allocated for an adapter 7125 * @ioa_cfg: ioa cfg struct 7126 * 7127 * Return value: 7128 * nothing 7129 **/ 7130static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7131{ 7132 int i; 7133 7134 kfree(ioa_cfg->res_entries); 7135 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7136 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7137 ipr_free_cmd_blks(ioa_cfg); 7138 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7139 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7140 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), 7141 ioa_cfg->cfg_table, 7142 ioa_cfg->cfg_table_dma); 7143 7144 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7145 pci_free_consistent(ioa_cfg->pdev, 7146 sizeof(struct ipr_hostrcb), 7147 ioa_cfg->hostrcb[i], 7148 ioa_cfg->hostrcb_dma[i]); 7149 } 7150 7151 ipr_free_dump(ioa_cfg); 7152 kfree(ioa_cfg->trace); 7153} 7154 7155/** 7156 * ipr_free_all_resources - Free all allocated resources for an adapter. 7157 * @ipr_cmd: ipr command struct 7158 * 7159 * This function frees all allocated resources for the 7160 * specified adapter. 7161 * 7162 * Return value: 7163 * none 7164 **/ 7165static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 7166{ 7167 struct pci_dev *pdev = ioa_cfg->pdev; 7168 7169 ENTER; 7170 free_irq(pdev->irq, ioa_cfg); 7171 iounmap(ioa_cfg->hdw_dma_regs); 7172 pci_release_regions(pdev); 7173 ipr_free_mem(ioa_cfg); 7174 scsi_host_put(ioa_cfg->host); 7175 pci_disable_device(pdev); 7176 LEAVE; 7177} 7178 7179/** 7180 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 7181 * @ioa_cfg: ioa config struct 7182 * 7183 * Return value: 7184 * 0 on success / -ENOMEM on allocation failure 7185 **/ 7186static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7187{ 7188 struct ipr_cmnd *ipr_cmd; 7189 struct ipr_ioarcb *ioarcb; 7190 dma_addr_t dma_addr; 7191 int i; 7192 7193 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 7194 sizeof(struct ipr_cmnd), 8, 0); 7195 7196 if (!ioa_cfg->ipr_cmd_pool) 7197 return -ENOMEM; 7198 7199 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7200 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 7201 7202 if (!ipr_cmd) { 7203 ipr_free_cmd_blks(ioa_cfg); 7204 return -ENOMEM; 7205 } 7206 7207 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 7208 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 7209 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 7210 7211 ioarcb = &ipr_cmd->ioarcb; 7212 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 7213 ioarcb->host_response_handle = cpu_to_be32(i << 2); 7214 ioarcb->write_ioadl_addr = 7215 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 7216 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 7217 ioarcb->ioasa_host_pci_addr = 7218 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 7219 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 7220 ipr_cmd->cmd_index = i; 7221 ipr_cmd->ioa_cfg = ioa_cfg; 7222 ipr_cmd->sense_buffer_dma = dma_addr + 7223 offsetof(struct ipr_cmnd, sense_buffer); 7224 7225 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7226 } 7227 7228 return 0; 7229} 7230 7231/** 7232 * ipr_alloc_mem - Allocate memory for an adapter 7233 * @ioa_cfg: ioa config struct 7234 * 7235 * Return value: 7236 * 0 on success / non-zero for error 7237 **/ 7238static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 7239{ 7240 struct pci_dev *pdev = ioa_cfg->pdev; 7241 int i, rc = -ENOMEM; 7242 7243 ENTER; 7244 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 7245 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); 7246 7247 if (!ioa_cfg->res_entries) 7248 goto out; 7249 7250 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) 7251 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 7252 7253 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 7254 sizeof(struct ipr_misc_cbs), 7255 &ioa_cfg->vpd_cbs_dma); 7256 7257 if (!ioa_cfg->vpd_cbs) 7258 goto out_free_res_entries; 7259 7260 if (ipr_alloc_cmd_blks(ioa_cfg)) 7261 goto out_free_vpd_cbs; 7262 7263 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 7264 sizeof(u32) * IPR_NUM_CMD_BLKS, 7265 &ioa_cfg->host_rrq_dma); 7266 7267 if (!ioa_cfg->host_rrq) 7268 goto out_ipr_free_cmd_blocks; 7269 7270 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 7271 sizeof(struct ipr_config_table), 7272 &ioa_cfg->cfg_table_dma); 7273 7274 if (!ioa_cfg->cfg_table) 7275 goto out_free_host_rrq; 7276 7277 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7278 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 7279 sizeof(struct ipr_hostrcb), 7280 &ioa_cfg->hostrcb_dma[i]); 7281 7282 if (!ioa_cfg->hostrcb[i]) 7283 goto out_free_hostrcb_dma; 7284 7285 ioa_cfg->hostrcb[i]->hostrcb_dma = 7286 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 7287 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 7288 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 7289 } 7290 7291 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 7292 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 7293 7294 if (!ioa_cfg->trace) 7295 goto out_free_hostrcb_dma; 7296 7297 rc = 0; 7298out: 7299 LEAVE; 7300 return rc; 7301 7302out_free_hostrcb_dma: 7303 while (i-- > 0) { 7304 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 7305 ioa_cfg->hostrcb[i], 7306 ioa_cfg->hostrcb_dma[i]); 7307 } 7308 pci_free_consistent(pdev, sizeof(struct ipr_config_table), 7309 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); 7310out_free_host_rrq: 7311 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7312 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7313out_ipr_free_cmd_blocks: 7314 ipr_free_cmd_blks(ioa_cfg); 7315out_free_vpd_cbs: 7316 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 7317 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7318out_free_res_entries: 7319 kfree(ioa_cfg->res_entries); 7320 goto out; 7321} 7322 7323/** 7324 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 7325 * @ioa_cfg: ioa config struct 7326 * 7327 * Return value: 7328 * none 7329 **/ 7330static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 7331{ 7332 int i; 7333 7334 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 7335 ioa_cfg->bus_attr[i].bus = i; 7336 ioa_cfg->bus_attr[i].qas_enabled = 0; 7337 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 7338 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 7339 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 7340 else 7341 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 7342 } 7343} 7344 7345/** 7346 * ipr_init_ioa_cfg - Initialize IOA config struct 7347 * @ioa_cfg: ioa config struct 7348 * @host: scsi host struct 7349 * @pdev: PCI dev struct 7350 * 7351 * Return value: 7352 * none 7353 **/ 7354static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 7355 struct Scsi_Host *host, struct pci_dev *pdev) 7356{ 7357 const struct ipr_interrupt_offsets *p; 7358 struct ipr_interrupts *t; 7359 void __iomem *base; 7360 7361 ioa_cfg->host = host; 7362 ioa_cfg->pdev = pdev; 7363 ioa_cfg->log_level = ipr_log_level; 7364 ioa_cfg->doorbell = IPR_DOORBELL; 7365 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 7366 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 7367 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 7368 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 7369 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 7370 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 7371 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 7372 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 7373 7374 INIT_LIST_HEAD(&ioa_cfg->free_q); 7375 INIT_LIST_HEAD(&ioa_cfg->pending_q); 7376 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 7377 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 7378 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 7379 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 7380 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 7381 init_waitqueue_head(&ioa_cfg->reset_wait_q); 7382 ioa_cfg->sdt_state = INACTIVE; 7383 if (ipr_enable_cache) 7384 ioa_cfg->cache_state = CACHE_ENABLED; 7385 else 7386 ioa_cfg->cache_state = CACHE_DISABLED; 7387 7388 ipr_initialize_bus_attr(ioa_cfg); 7389 7390 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 7391 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 7392 host->max_channel = IPR_MAX_BUS_TO_SCAN; 7393 host->unique_id = host->host_no; 7394 host->max_cmd_len = IPR_MAX_CDB_LEN; 7395 pci_set_drvdata(pdev, ioa_cfg); 7396 7397 p = &ioa_cfg->chip_cfg->regs; 7398 t = &ioa_cfg->regs; 7399 base = ioa_cfg->hdw_dma_regs; 7400 7401 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 7402 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 7403 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 7404 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 7405 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 7406 t->ioarrin_reg = base + p->ioarrin_reg; 7407 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 7408 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 7409 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 7410} 7411 7412/** 7413 * ipr_get_chip_cfg - Find adapter chip configuration 7414 * @dev_id: PCI device id struct 7415 * 7416 * Return value: 7417 * ptr to chip config on success / NULL on failure 7418 **/ 7419static const struct ipr_chip_cfg_t * __devinit 7420ipr_get_chip_cfg(const struct pci_device_id *dev_id) 7421{ 7422 int i; 7423 7424 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 7425 if (ipr_chip[i].vendor == dev_id->vendor && 7426 ipr_chip[i].device == dev_id->device) 7427 return ipr_chip[i].cfg; 7428 return NULL; 7429} 7430 7431/** 7432 * ipr_probe_ioa - Allocates memory and does first stage of initialization 7433 * @pdev: PCI device struct 7434 * @dev_id: PCI device id struct 7435 * 7436 * Return value: 7437 * 0 on success / non-zero on failure 7438 **/ 7439static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 7440 const struct pci_device_id *dev_id) 7441{ 7442 struct ipr_ioa_cfg *ioa_cfg; 7443 struct Scsi_Host *host; 7444 unsigned long ipr_regs_pci; 7445 void __iomem *ipr_regs; 7446 int rc = PCIBIOS_SUCCESSFUL; 7447 volatile u32 mask, uproc, interrupts; 7448 7449 ENTER; 7450 7451 if ((rc = pci_enable_device(pdev))) { 7452 dev_err(&pdev->dev, "Cannot enable adapter\n"); 7453 goto out; 7454 } 7455 7456 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 7457 7458 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 7459 7460 if (!host) { 7461 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 7462 rc = -ENOMEM; 7463 goto out_disable; 7464 } 7465 7466 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 7467 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 7468 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 7469 sata_port_info.flags, &ipr_sata_ops); 7470 7471 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); 7472 7473 if (!ioa_cfg->chip_cfg) { 7474 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 7475 dev_id->vendor, dev_id->device); 7476 goto out_scsi_host_put; 7477 } 7478 7479 if (ipr_transop_timeout) 7480 ioa_cfg->transop_timeout = ipr_transop_timeout; 7481 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 7482 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 7483 else 7484 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 7485 7486 ipr_regs_pci = pci_resource_start(pdev, 0); 7487 7488 rc = pci_request_regions(pdev, IPR_NAME); 7489 if (rc < 0) { 7490 dev_err(&pdev->dev, 7491 "Couldn't register memory range of registers\n"); 7492 goto out_scsi_host_put; 7493 } 7494 7495 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); 7496 7497 if (!ipr_regs) { 7498 dev_err(&pdev->dev, 7499 "Couldn't map memory range of registers\n"); 7500 rc = -ENOMEM; 7501 goto out_release_regions; 7502 } 7503 7504 ioa_cfg->hdw_dma_regs = ipr_regs; 7505 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 7506 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 7507 7508 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 7509 7510 pci_set_master(pdev); 7511 7512 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 7513 if (rc < 0) { 7514 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 7515 goto cleanup_nomem; 7516 } 7517 7518 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 7519 ioa_cfg->chip_cfg->cache_line_size); 7520 7521 if (rc != PCIBIOS_SUCCESSFUL) { 7522 dev_err(&pdev->dev, "Write of cache line size failed\n"); 7523 rc = -EIO; 7524 goto cleanup_nomem; 7525 } 7526 7527 /* Save away PCI config space for use following IOA reset */ 7528 rc = pci_save_state(pdev); 7529 7530 if (rc != PCIBIOS_SUCCESSFUL) { 7531 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 7532 rc = -EIO; 7533 goto cleanup_nomem; 7534 } 7535 7536 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 7537 goto cleanup_nomem; 7538 7539 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 7540 goto cleanup_nomem; 7541 7542 rc = ipr_alloc_mem(ioa_cfg); 7543 if (rc < 0) { 7544 dev_err(&pdev->dev, 7545 "Couldn't allocate enough memory for device driver!\n"); 7546 goto cleanup_nomem; 7547 } 7548 7549 /* 7550 * If HRRQ updated interrupt is not masked, or reset alert is set, 7551 * the card is in an unknown state and needs a hard reset 7552 */ 7553 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7554 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); 7555 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 7556 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 7557 ioa_cfg->needs_hard_reset = 1; 7558 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 7559 ioa_cfg->needs_hard_reset = 1; 7560 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 7561 ioa_cfg->ioa_unit_checked = 1; 7562 7563 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 7564 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); 7565 7566 if (rc) { 7567 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 7568 pdev->irq, rc); 7569 goto cleanup_nolog; 7570 } 7571 7572 spin_lock(&ipr_driver_lock); 7573 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 7574 spin_unlock(&ipr_driver_lock); 7575 7576 LEAVE; 7577out: 7578 return rc; 7579 7580cleanup_nolog: 7581 ipr_free_mem(ioa_cfg); 7582cleanup_nomem: 7583 iounmap(ipr_regs); 7584out_release_regions: 7585 pci_release_regions(pdev); 7586out_scsi_host_put: 7587 scsi_host_put(host); 7588out_disable: 7589 pci_disable_device(pdev); 7590 goto out; 7591} 7592 7593/** 7594 * ipr_scan_vsets - Scans for VSET devices 7595 * @ioa_cfg: ioa config struct 7596 * 7597 * Description: Since the VSET resources do not follow SAM in that we can have 7598 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 7599 * 7600 * Return value: 7601 * none 7602 **/ 7603static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 7604{ 7605 int target, lun; 7606 7607 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 7608 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 7609 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 7610} 7611 7612/** 7613 * ipr_initiate_ioa_bringdown - Bring down an adapter 7614 * @ioa_cfg: ioa config struct 7615 * @shutdown_type: shutdown type 7616 * 7617 * Description: This function will initiate bringing down the adapter. 7618 * This consists of issuing an IOA shutdown to the adapter 7619 * to flush the cache, and running BIST. 7620 * If the caller needs to wait on the completion of the reset, 7621 * the caller must sleep on the reset_wait_q. 7622 * 7623 * Return value: 7624 * none 7625 **/ 7626static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 7627 enum ipr_shutdown_type shutdown_type) 7628{ 7629 ENTER; 7630 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7631 ioa_cfg->sdt_state = ABORT_DUMP; 7632 ioa_cfg->reset_retries = 0; 7633 ioa_cfg->in_ioa_bringdown = 1; 7634 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 7635 LEAVE; 7636} 7637 7638/** 7639 * __ipr_remove - Remove a single adapter 7640 * @pdev: pci device struct 7641 * 7642 * Adapter hot plug remove entry point. 7643 * 7644 * Return value: 7645 * none 7646 **/ 7647static void __ipr_remove(struct pci_dev *pdev) 7648{ 7649 unsigned long host_lock_flags = 0; 7650 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7651 ENTER; 7652 7653 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7654 while(ioa_cfg->in_reset_reload) { 7655 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7656 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7657 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7658 } 7659 7660 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7661 7662 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7663 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7664 flush_scheduled_work(); 7665 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7666 7667 spin_lock(&ipr_driver_lock); 7668 list_del(&ioa_cfg->queue); 7669 spin_unlock(&ipr_driver_lock); 7670 7671 if (ioa_cfg->sdt_state == ABORT_DUMP) 7672 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7673 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7674 7675 ipr_free_all_resources(ioa_cfg); 7676 7677 LEAVE; 7678} 7679 7680/** 7681 * ipr_remove - IOA hot plug remove entry point 7682 * @pdev: pci device struct 7683 * 7684 * Adapter hot plug remove entry point. 7685 * 7686 * Return value: 7687 * none 7688 **/ 7689static void ipr_remove(struct pci_dev *pdev) 7690{ 7691 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7692 7693 ENTER; 7694 7695 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7696 &ipr_trace_attr); 7697 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, 7698 &ipr_dump_attr); 7699 scsi_remove_host(ioa_cfg->host); 7700 7701 __ipr_remove(pdev); 7702 7703 LEAVE; 7704} 7705 7706/** 7707 * ipr_probe - Adapter hot plug add entry point 7708 * 7709 * Return value: 7710 * 0 on success / non-zero on failure 7711 **/ 7712static int __devinit ipr_probe(struct pci_dev *pdev, 7713 const struct pci_device_id *dev_id) 7714{ 7715 struct ipr_ioa_cfg *ioa_cfg; 7716 int rc; 7717 7718 rc = ipr_probe_ioa(pdev, dev_id); 7719 7720 if (rc) 7721 return rc; 7722 7723 ioa_cfg = pci_get_drvdata(pdev); 7724 rc = ipr_probe_ioa_part2(ioa_cfg); 7725 7726 if (rc) { 7727 __ipr_remove(pdev); 7728 return rc; 7729 } 7730 7731 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 7732 7733 if (rc) { 7734 __ipr_remove(pdev); 7735 return rc; 7736 } 7737 7738 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7739 &ipr_trace_attr); 7740 7741 if (rc) { 7742 scsi_remove_host(ioa_cfg->host); 7743 __ipr_remove(pdev); 7744 return rc; 7745 } 7746 7747 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, 7748 &ipr_dump_attr); 7749 7750 if (rc) { 7751 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7752 &ipr_trace_attr); 7753 scsi_remove_host(ioa_cfg->host); 7754 __ipr_remove(pdev); 7755 return rc; 7756 } 7757 7758 scsi_scan_host(ioa_cfg->host); 7759 ipr_scan_vsets(ioa_cfg); 7760 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 7761 ioa_cfg->allow_ml_add_del = 1; 7762 ioa_cfg->host->max_channel = IPR_VSET_BUS; 7763 schedule_work(&ioa_cfg->work_q); 7764 return 0; 7765} 7766 7767/** 7768 * ipr_shutdown - Shutdown handler. 7769 * @pdev: pci device struct 7770 * 7771 * This function is invoked upon system shutdown/reboot. It will issue 7772 * an adapter shutdown to the adapter to flush the write cache. 7773 * 7774 * Return value: 7775 * none 7776 **/ 7777static void ipr_shutdown(struct pci_dev *pdev) 7778{ 7779 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7780 unsigned long lock_flags = 0; 7781 7782 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7783 while(ioa_cfg->in_reset_reload) { 7784 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7785 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7786 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7787 } 7788 7789 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7790 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7791 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7792} 7793 7794static struct pci_device_id ipr_pci_table[] __devinitdata = { 7795 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7796 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 7797 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7798 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 7799 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7800 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 7801 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7802 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 7803 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7804 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 7805 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7806 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 7807 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7808 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 7809 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7810 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 7811 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7812 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7813 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7814 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7815 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7816 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7817 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7818 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7819 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7820 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7821 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7822 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7823 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7824 IPR_USE_LONG_TRANSOP_TIMEOUT}, 7825 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7826 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7827 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7828 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7829 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 7830 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7831 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7832 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 7833 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7834 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7835 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 7836 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7837 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 7838 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7839 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 7840 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 7841 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7842 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 7843 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7844 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 7845 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7846 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7847 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 7848 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7849 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E, 7850 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 7851 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7852 { } 7853}; 7854MODULE_DEVICE_TABLE(pci, ipr_pci_table); 7855 7856static struct pci_error_handlers ipr_err_handler = { 7857 .error_detected = ipr_pci_error_detected, 7858 .slot_reset = ipr_pci_slot_reset, 7859}; 7860 7861static struct pci_driver ipr_driver = { 7862 .name = IPR_NAME, 7863 .id_table = ipr_pci_table, 7864 .probe = ipr_probe, 7865 .remove = ipr_remove, 7866 .shutdown = ipr_shutdown, 7867 .err_handler = &ipr_err_handler, 7868 .dynids.use_driver_data = 1 7869}; 7870 7871/** 7872 * ipr_init - Module entry point 7873 * 7874 * Return value: 7875 * 0 on success / negative value on failure 7876 **/ 7877static int __init ipr_init(void) 7878{ 7879 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 7880 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 7881 7882 return pci_register_driver(&ipr_driver); 7883} 7884 7885/** 7886 * ipr_exit - Module unload 7887 * 7888 * Module unload entry point. 7889 * 7890 * Return value: 7891 * none 7892 **/ 7893static void __exit ipr_exit(void) 7894{ 7895 pci_unregister_driver(&ipr_driver); 7896} 7897 7898module_init(ipr_init); 7899module_exit(ipr_exit); 7900