ipr.c revision 63015bc9333907725f90a1691d0ade44e51cdcbf
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_mask_and_clear_interrupts - Mask all and clear specified interrupts 544 * @ioa_cfg: ioa config struct 545 * @clr_ints: interrupts to clear 546 * 547 * This function masks all interrupts on the adapter, then clears the 548 * interrupts specified in the mask 549 * 550 * Return value: 551 * none 552 **/ 553static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 554 u32 clr_ints) 555{ 556 volatile u32 int_reg; 557 558 /* Stop new interrupts */ 559 ioa_cfg->allow_interrupts = 0; 560 561 /* Set interrupt mask to stop all new interrupts */ 562 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 563 564 /* Clear any pending interrupts */ 565 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg); 566 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 567} 568 569/** 570 * ipr_save_pcix_cmd_reg - Save PCI-X command register 571 * @ioa_cfg: ioa config struct 572 * 573 * Return value: 574 * 0 on success / -EIO on failure 575 **/ 576static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 577{ 578 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 579 580 if (pcix_cmd_reg == 0) 581 return 0; 582 583 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 584 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 585 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 586 return -EIO; 587 } 588 589 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 590 return 0; 591} 592 593/** 594 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 595 * @ioa_cfg: ioa config struct 596 * 597 * Return value: 598 * 0 on success / -EIO on failure 599 **/ 600static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 601{ 602 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 603 604 if (pcix_cmd_reg) { 605 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 606 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 607 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 608 return -EIO; 609 } 610 } 611 612 return 0; 613} 614 615/** 616 * ipr_sata_eh_done - done function for aborted SATA commands 617 * @ipr_cmd: ipr command struct 618 * 619 * This function is invoked for ops generated to SATA 620 * devices which are being aborted. 621 * 622 * Return value: 623 * none 624 **/ 625static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 626{ 627 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 628 struct ata_queued_cmd *qc = ipr_cmd->qc; 629 struct ipr_sata_port *sata_port = qc->ap->private_data; 630 631 qc->err_mask |= AC_ERR_OTHER; 632 sata_port->ioasa.status |= ATA_BUSY; 633 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 634 ata_qc_complete(qc); 635} 636 637/** 638 * ipr_scsi_eh_done - mid-layer done function for aborted ops 639 * @ipr_cmd: ipr command struct 640 * 641 * This function is invoked by the interrupt handler for 642 * ops generated by the SCSI mid-layer which are being aborted. 643 * 644 * Return value: 645 * none 646 **/ 647static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 648{ 649 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 650 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 651 652 scsi_cmd->result |= (DID_ERROR << 16); 653 654 scsi_dma_unmap(ipr_cmd->scsi_cmd); 655 scsi_cmd->scsi_done(scsi_cmd); 656 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 657} 658 659/** 660 * ipr_fail_all_ops - Fails all outstanding ops. 661 * @ioa_cfg: ioa config struct 662 * 663 * This function fails all outstanding ops. 664 * 665 * Return value: 666 * none 667 **/ 668static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 669{ 670 struct ipr_cmnd *ipr_cmd, *temp; 671 672 ENTER; 673 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 674 list_del(&ipr_cmd->queue); 675 676 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 677 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); 678 679 if (ipr_cmd->scsi_cmd) 680 ipr_cmd->done = ipr_scsi_eh_done; 681 else if (ipr_cmd->qc) 682 ipr_cmd->done = ipr_sata_eh_done; 683 684 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 685 del_timer(&ipr_cmd->timer); 686 ipr_cmd->done(ipr_cmd); 687 } 688 689 LEAVE; 690} 691 692/** 693 * ipr_do_req - Send driver initiated requests. 694 * @ipr_cmd: ipr command struct 695 * @done: done function 696 * @timeout_func: timeout function 697 * @timeout: timeout value 698 * 699 * This function sends the specified command to the adapter with the 700 * timeout given. The done function is invoked on command completion. 701 * 702 * Return value: 703 * none 704 **/ 705static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 706 void (*done) (struct ipr_cmnd *), 707 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 708{ 709 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 710 711 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 712 713 ipr_cmd->done = done; 714 715 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 716 ipr_cmd->timer.expires = jiffies + timeout; 717 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 718 719 add_timer(&ipr_cmd->timer); 720 721 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 722 723 mb(); 724 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 725 ioa_cfg->regs.ioarrin_reg); 726} 727 728/** 729 * ipr_internal_cmd_done - Op done function for an internally generated op. 730 * @ipr_cmd: ipr command struct 731 * 732 * This function is the op done function for an internally generated, 733 * blocking op. It simply wakes the sleeping thread. 734 * 735 * Return value: 736 * none 737 **/ 738static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 739{ 740 if (ipr_cmd->sibling) 741 ipr_cmd->sibling = NULL; 742 else 743 complete(&ipr_cmd->completion); 744} 745 746/** 747 * ipr_send_blocking_cmd - Send command and sleep on its completion. 748 * @ipr_cmd: ipr command struct 749 * @timeout_func: function to invoke if command times out 750 * @timeout: timeout 751 * 752 * Return value: 753 * none 754 **/ 755static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 756 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 757 u32 timeout) 758{ 759 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 760 761 init_completion(&ipr_cmd->completion); 762 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 763 764 spin_unlock_irq(ioa_cfg->host->host_lock); 765 wait_for_completion(&ipr_cmd->completion); 766 spin_lock_irq(ioa_cfg->host->host_lock); 767} 768 769/** 770 * ipr_send_hcam - Send an HCAM to the adapter. 771 * @ioa_cfg: ioa config struct 772 * @type: HCAM type 773 * @hostrcb: hostrcb struct 774 * 775 * This function will send a Host Controlled Async command to the adapter. 776 * If HCAMs are currently not allowed to be issued to the adapter, it will 777 * place the hostrcb on the free queue. 778 * 779 * Return value: 780 * none 781 **/ 782static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 783 struct ipr_hostrcb *hostrcb) 784{ 785 struct ipr_cmnd *ipr_cmd; 786 struct ipr_ioarcb *ioarcb; 787 788 if (ioa_cfg->allow_cmds) { 789 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 790 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 791 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 792 793 ipr_cmd->u.hostrcb = hostrcb; 794 ioarcb = &ipr_cmd->ioarcb; 795 796 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 797 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 798 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 799 ioarcb->cmd_pkt.cdb[1] = type; 800 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 801 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 802 803 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam)); 804 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 805 ipr_cmd->ioadl[0].flags_and_data_len = 806 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam)); 807 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma); 808 809 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 810 ipr_cmd->done = ipr_process_ccn; 811 else 812 ipr_cmd->done = ipr_process_error; 813 814 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 815 816 mb(); 817 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 818 ioa_cfg->regs.ioarrin_reg); 819 } else { 820 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 821 } 822} 823 824/** 825 * ipr_init_res_entry - Initialize a resource entry struct. 826 * @res: resource entry struct 827 * 828 * Return value: 829 * none 830 **/ 831static void ipr_init_res_entry(struct ipr_resource_entry *res) 832{ 833 res->needs_sync_complete = 0; 834 res->in_erp = 0; 835 res->add_to_ml = 0; 836 res->del_from_ml = 0; 837 res->resetting_device = 0; 838 res->sdev = NULL; 839 res->sata_port = NULL; 840} 841 842/** 843 * ipr_handle_config_change - Handle a config change from the adapter 844 * @ioa_cfg: ioa config struct 845 * @hostrcb: hostrcb 846 * 847 * Return value: 848 * none 849 **/ 850static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 851 struct ipr_hostrcb *hostrcb) 852{ 853 struct ipr_resource_entry *res = NULL; 854 struct ipr_config_table_entry *cfgte; 855 u32 is_ndn = 1; 856 857 cfgte = &hostrcb->hcam.u.ccn.cfgte; 858 859 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 860 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr, 861 sizeof(cfgte->res_addr))) { 862 is_ndn = 0; 863 break; 864 } 865 } 866 867 if (is_ndn) { 868 if (list_empty(&ioa_cfg->free_res_q)) { 869 ipr_send_hcam(ioa_cfg, 870 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 871 hostrcb); 872 return; 873 } 874 875 res = list_entry(ioa_cfg->free_res_q.next, 876 struct ipr_resource_entry, queue); 877 878 list_del(&res->queue); 879 ipr_init_res_entry(res); 880 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 881 } 882 883 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 884 885 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 886 if (res->sdev) { 887 res->del_from_ml = 1; 888 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 889 if (ioa_cfg->allow_ml_add_del) 890 schedule_work(&ioa_cfg->work_q); 891 } else 892 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 893 } else if (!res->sdev) { 894 res->add_to_ml = 1; 895 if (ioa_cfg->allow_ml_add_del) 896 schedule_work(&ioa_cfg->work_q); 897 } 898 899 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 900} 901 902/** 903 * ipr_process_ccn - Op done function for a CCN. 904 * @ipr_cmd: ipr command struct 905 * 906 * This function is the op done function for a configuration 907 * change notification host controlled async from the adapter. 908 * 909 * Return value: 910 * none 911 **/ 912static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 913{ 914 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 915 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 916 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 917 918 list_del(&hostrcb->queue); 919 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 920 921 if (ioasc) { 922 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 923 dev_err(&ioa_cfg->pdev->dev, 924 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 925 926 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 927 } else { 928 ipr_handle_config_change(ioa_cfg, hostrcb); 929 } 930} 931 932/** 933 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 934 * @i: index into buffer 935 * @buf: string to modify 936 * 937 * This function will strip all trailing whitespace, pad the end 938 * of the string with a single space, and NULL terminate the string. 939 * 940 * Return value: 941 * new length of string 942 **/ 943static int strip_and_pad_whitespace(int i, char *buf) 944{ 945 while (i && buf[i] == ' ') 946 i--; 947 buf[i+1] = ' '; 948 buf[i+2] = '\0'; 949 return i + 2; 950} 951 952/** 953 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 954 * @prefix: string to print at start of printk 955 * @hostrcb: hostrcb pointer 956 * @vpd: vendor/product id/sn struct 957 * 958 * Return value: 959 * none 960 **/ 961static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 962 struct ipr_vpd *vpd) 963{ 964 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 965 int i = 0; 966 967 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 968 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 969 970 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 971 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 972 973 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 974 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 975 976 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 977} 978 979/** 980 * ipr_log_vpd - Log the passed VPD to the error log. 981 * @vpd: vendor/product id/sn struct 982 * 983 * Return value: 984 * none 985 **/ 986static void ipr_log_vpd(struct ipr_vpd *vpd) 987{ 988 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 989 + IPR_SERIAL_NUM_LEN]; 990 991 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 992 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 993 IPR_PROD_ID_LEN); 994 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 995 ipr_err("Vendor/Product ID: %s\n", buffer); 996 997 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 998 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 999 ipr_err(" Serial Number: %s\n", buffer); 1000} 1001 1002/** 1003 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1004 * @prefix: string to print at start of printk 1005 * @hostrcb: hostrcb pointer 1006 * @vpd: vendor/product id/sn/wwn struct 1007 * 1008 * Return value: 1009 * none 1010 **/ 1011static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1012 struct ipr_ext_vpd *vpd) 1013{ 1014 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1015 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1016 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1017} 1018 1019/** 1020 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1021 * @vpd: vendor/product id/sn/wwn struct 1022 * 1023 * Return value: 1024 * none 1025 **/ 1026static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1027{ 1028 ipr_log_vpd(&vpd->vpd); 1029 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1030 be32_to_cpu(vpd->wwid[1])); 1031} 1032 1033/** 1034 * ipr_log_enhanced_cache_error - Log a cache error. 1035 * @ioa_cfg: ioa config struct 1036 * @hostrcb: hostrcb struct 1037 * 1038 * Return value: 1039 * none 1040 **/ 1041static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1042 struct ipr_hostrcb *hostrcb) 1043{ 1044 struct ipr_hostrcb_type_12_error *error = 1045 &hostrcb->hcam.u.error.u.type_12_error; 1046 1047 ipr_err("-----Current Configuration-----\n"); 1048 ipr_err("Cache Directory Card Information:\n"); 1049 ipr_log_ext_vpd(&error->ioa_vpd); 1050 ipr_err("Adapter Card Information:\n"); 1051 ipr_log_ext_vpd(&error->cfc_vpd); 1052 1053 ipr_err("-----Expected Configuration-----\n"); 1054 ipr_err("Cache Directory Card Information:\n"); 1055 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1056 ipr_err("Adapter Card Information:\n"); 1057 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1058 1059 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1060 be32_to_cpu(error->ioa_data[0]), 1061 be32_to_cpu(error->ioa_data[1]), 1062 be32_to_cpu(error->ioa_data[2])); 1063} 1064 1065/** 1066 * ipr_log_cache_error - Log a cache error. 1067 * @ioa_cfg: ioa config struct 1068 * @hostrcb: hostrcb struct 1069 * 1070 * Return value: 1071 * none 1072 **/ 1073static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1074 struct ipr_hostrcb *hostrcb) 1075{ 1076 struct ipr_hostrcb_type_02_error *error = 1077 &hostrcb->hcam.u.error.u.type_02_error; 1078 1079 ipr_err("-----Current Configuration-----\n"); 1080 ipr_err("Cache Directory Card Information:\n"); 1081 ipr_log_vpd(&error->ioa_vpd); 1082 ipr_err("Adapter Card Information:\n"); 1083 ipr_log_vpd(&error->cfc_vpd); 1084 1085 ipr_err("-----Expected Configuration-----\n"); 1086 ipr_err("Cache Directory Card Information:\n"); 1087 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1088 ipr_err("Adapter Card Information:\n"); 1089 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1090 1091 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1092 be32_to_cpu(error->ioa_data[0]), 1093 be32_to_cpu(error->ioa_data[1]), 1094 be32_to_cpu(error->ioa_data[2])); 1095} 1096 1097/** 1098 * ipr_log_enhanced_config_error - Log a configuration error. 1099 * @ioa_cfg: ioa config struct 1100 * @hostrcb: hostrcb struct 1101 * 1102 * Return value: 1103 * none 1104 **/ 1105static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1106 struct ipr_hostrcb *hostrcb) 1107{ 1108 int errors_logged, i; 1109 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1110 struct ipr_hostrcb_type_13_error *error; 1111 1112 error = &hostrcb->hcam.u.error.u.type_13_error; 1113 errors_logged = be32_to_cpu(error->errors_logged); 1114 1115 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1116 be32_to_cpu(error->errors_detected), errors_logged); 1117 1118 dev_entry = error->dev; 1119 1120 for (i = 0; i < errors_logged; i++, dev_entry++) { 1121 ipr_err_separator; 1122 1123 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1124 ipr_log_ext_vpd(&dev_entry->vpd); 1125 1126 ipr_err("-----New Device Information-----\n"); 1127 ipr_log_ext_vpd(&dev_entry->new_vpd); 1128 1129 ipr_err("Cache Directory Card Information:\n"); 1130 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1131 1132 ipr_err("Adapter Card Information:\n"); 1133 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1134 } 1135} 1136 1137/** 1138 * ipr_log_config_error - Log a configuration error. 1139 * @ioa_cfg: ioa config struct 1140 * @hostrcb: hostrcb struct 1141 * 1142 * Return value: 1143 * none 1144 **/ 1145static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1146 struct ipr_hostrcb *hostrcb) 1147{ 1148 int errors_logged, i; 1149 struct ipr_hostrcb_device_data_entry *dev_entry; 1150 struct ipr_hostrcb_type_03_error *error; 1151 1152 error = &hostrcb->hcam.u.error.u.type_03_error; 1153 errors_logged = be32_to_cpu(error->errors_logged); 1154 1155 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1156 be32_to_cpu(error->errors_detected), errors_logged); 1157 1158 dev_entry = error->dev; 1159 1160 for (i = 0; i < errors_logged; i++, dev_entry++) { 1161 ipr_err_separator; 1162 1163 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1164 ipr_log_vpd(&dev_entry->vpd); 1165 1166 ipr_err("-----New Device Information-----\n"); 1167 ipr_log_vpd(&dev_entry->new_vpd); 1168 1169 ipr_err("Cache Directory Card Information:\n"); 1170 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1171 1172 ipr_err("Adapter Card Information:\n"); 1173 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1174 1175 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1176 be32_to_cpu(dev_entry->ioa_data[0]), 1177 be32_to_cpu(dev_entry->ioa_data[1]), 1178 be32_to_cpu(dev_entry->ioa_data[2]), 1179 be32_to_cpu(dev_entry->ioa_data[3]), 1180 be32_to_cpu(dev_entry->ioa_data[4])); 1181 } 1182} 1183 1184/** 1185 * ipr_log_enhanced_array_error - Log an array configuration error. 1186 * @ioa_cfg: ioa config struct 1187 * @hostrcb: hostrcb struct 1188 * 1189 * Return value: 1190 * none 1191 **/ 1192static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1193 struct ipr_hostrcb *hostrcb) 1194{ 1195 int i, num_entries; 1196 struct ipr_hostrcb_type_14_error *error; 1197 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1198 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1199 1200 error = &hostrcb->hcam.u.error.u.type_14_error; 1201 1202 ipr_err_separator; 1203 1204 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1205 error->protection_level, 1206 ioa_cfg->host->host_no, 1207 error->last_func_vset_res_addr.bus, 1208 error->last_func_vset_res_addr.target, 1209 error->last_func_vset_res_addr.lun); 1210 1211 ipr_err_separator; 1212 1213 array_entry = error->array_member; 1214 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1215 sizeof(error->array_member)); 1216 1217 for (i = 0; i < num_entries; i++, array_entry++) { 1218 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1219 continue; 1220 1221 if (be32_to_cpu(error->exposed_mode_adn) == i) 1222 ipr_err("Exposed Array Member %d:\n", i); 1223 else 1224 ipr_err("Array Member %d:\n", i); 1225 1226 ipr_log_ext_vpd(&array_entry->vpd); 1227 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1228 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1229 "Expected Location"); 1230 1231 ipr_err_separator; 1232 } 1233} 1234 1235/** 1236 * ipr_log_array_error - Log an array configuration error. 1237 * @ioa_cfg: ioa config struct 1238 * @hostrcb: hostrcb struct 1239 * 1240 * Return value: 1241 * none 1242 **/ 1243static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1244 struct ipr_hostrcb *hostrcb) 1245{ 1246 int i; 1247 struct ipr_hostrcb_type_04_error *error; 1248 struct ipr_hostrcb_array_data_entry *array_entry; 1249 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1250 1251 error = &hostrcb->hcam.u.error.u.type_04_error; 1252 1253 ipr_err_separator; 1254 1255 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1256 error->protection_level, 1257 ioa_cfg->host->host_no, 1258 error->last_func_vset_res_addr.bus, 1259 error->last_func_vset_res_addr.target, 1260 error->last_func_vset_res_addr.lun); 1261 1262 ipr_err_separator; 1263 1264 array_entry = error->array_member; 1265 1266 for (i = 0; i < 18; i++) { 1267 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1268 continue; 1269 1270 if (be32_to_cpu(error->exposed_mode_adn) == i) 1271 ipr_err("Exposed Array Member %d:\n", i); 1272 else 1273 ipr_err("Array Member %d:\n", i); 1274 1275 ipr_log_vpd(&array_entry->vpd); 1276 1277 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1278 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1279 "Expected Location"); 1280 1281 ipr_err_separator; 1282 1283 if (i == 9) 1284 array_entry = error->array_member2; 1285 else 1286 array_entry++; 1287 } 1288} 1289 1290/** 1291 * ipr_log_hex_data - Log additional hex IOA error data. 1292 * @ioa_cfg: ioa config struct 1293 * @data: IOA error data 1294 * @len: data length 1295 * 1296 * Return value: 1297 * none 1298 **/ 1299static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1300{ 1301 int i; 1302 1303 if (len == 0) 1304 return; 1305 1306 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1307 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1308 1309 for (i = 0; i < len / 4; i += 4) { 1310 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1311 be32_to_cpu(data[i]), 1312 be32_to_cpu(data[i+1]), 1313 be32_to_cpu(data[i+2]), 1314 be32_to_cpu(data[i+3])); 1315 } 1316} 1317 1318/** 1319 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1320 * @ioa_cfg: ioa config struct 1321 * @hostrcb: hostrcb struct 1322 * 1323 * Return value: 1324 * none 1325 **/ 1326static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1327 struct ipr_hostrcb *hostrcb) 1328{ 1329 struct ipr_hostrcb_type_17_error *error; 1330 1331 error = &hostrcb->hcam.u.error.u.type_17_error; 1332 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1333 strstrip(error->failure_reason); 1334 1335 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1336 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1337 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1338 ipr_log_hex_data(ioa_cfg, error->data, 1339 be32_to_cpu(hostrcb->hcam.length) - 1340 (offsetof(struct ipr_hostrcb_error, u) + 1341 offsetof(struct ipr_hostrcb_type_17_error, data))); 1342} 1343 1344/** 1345 * ipr_log_dual_ioa_error - Log a dual adapter error. 1346 * @ioa_cfg: ioa config struct 1347 * @hostrcb: hostrcb struct 1348 * 1349 * Return value: 1350 * none 1351 **/ 1352static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1353 struct ipr_hostrcb *hostrcb) 1354{ 1355 struct ipr_hostrcb_type_07_error *error; 1356 1357 error = &hostrcb->hcam.u.error.u.type_07_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_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_07_error, data))); 1368} 1369 1370static const struct { 1371 u8 active; 1372 char *desc; 1373} path_active_desc[] = { 1374 { IPR_PATH_NO_INFO, "Path" }, 1375 { IPR_PATH_ACTIVE, "Active path" }, 1376 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1377}; 1378 1379static const struct { 1380 u8 state; 1381 char *desc; 1382} path_state_desc[] = { 1383 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1384 { IPR_PATH_HEALTHY, "is healthy" }, 1385 { IPR_PATH_DEGRADED, "is degraded" }, 1386 { IPR_PATH_FAILED, "is failed" } 1387}; 1388 1389/** 1390 * ipr_log_fabric_path - Log a fabric path error 1391 * @hostrcb: hostrcb struct 1392 * @fabric: fabric descriptor 1393 * 1394 * Return value: 1395 * none 1396 **/ 1397static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1398 struct ipr_hostrcb_fabric_desc *fabric) 1399{ 1400 int i, j; 1401 u8 path_state = fabric->path_state; 1402 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1403 u8 state = path_state & IPR_PATH_STATE_MASK; 1404 1405 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1406 if (path_active_desc[i].active != active) 1407 continue; 1408 1409 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1410 if (path_state_desc[j].state != state) 1411 continue; 1412 1413 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1414 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1415 path_active_desc[i].desc, path_state_desc[j].desc, 1416 fabric->ioa_port); 1417 } else if (fabric->cascaded_expander == 0xff) { 1418 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1419 path_active_desc[i].desc, path_state_desc[j].desc, 1420 fabric->ioa_port, fabric->phy); 1421 } else if (fabric->phy == 0xff) { 1422 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1423 path_active_desc[i].desc, path_state_desc[j].desc, 1424 fabric->ioa_port, fabric->cascaded_expander); 1425 } else { 1426 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1427 path_active_desc[i].desc, path_state_desc[j].desc, 1428 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1429 } 1430 return; 1431 } 1432 } 1433 1434 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1435 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1436} 1437 1438static const struct { 1439 u8 type; 1440 char *desc; 1441} path_type_desc[] = { 1442 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1443 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1444 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1445 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1446}; 1447 1448static const struct { 1449 u8 status; 1450 char *desc; 1451} path_status_desc[] = { 1452 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1453 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1454 { IPR_PATH_CFG_FAILED, "Failed" }, 1455 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1456 { IPR_PATH_NOT_DETECTED, "Missing" }, 1457 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1458}; 1459 1460static const char *link_rate[] = { 1461 "unknown", 1462 "disabled", 1463 "phy reset problem", 1464 "spinup hold", 1465 "port selector", 1466 "unknown", 1467 "unknown", 1468 "unknown", 1469 "1.5Gbps", 1470 "3.0Gbps", 1471 "unknown", 1472 "unknown", 1473 "unknown", 1474 "unknown", 1475 "unknown", 1476 "unknown" 1477}; 1478 1479/** 1480 * ipr_log_path_elem - Log a fabric path element. 1481 * @hostrcb: hostrcb struct 1482 * @cfg: fabric path element struct 1483 * 1484 * Return value: 1485 * none 1486 **/ 1487static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1488 struct ipr_hostrcb_config_element *cfg) 1489{ 1490 int i, j; 1491 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1492 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1493 1494 if (type == IPR_PATH_CFG_NOT_EXIST) 1495 return; 1496 1497 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1498 if (path_type_desc[i].type != type) 1499 continue; 1500 1501 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 1502 if (path_status_desc[j].status != status) 1503 continue; 1504 1505 if (type == IPR_PATH_CFG_IOA_PORT) { 1506 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 1507 path_status_desc[j].desc, path_type_desc[i].desc, 1508 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1509 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1510 } else { 1511 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 1512 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 1513 path_status_desc[j].desc, path_type_desc[i].desc, 1514 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1515 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1516 } else if (cfg->cascaded_expander == 0xff) { 1517 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 1518 "WWN=%08X%08X\n", path_status_desc[j].desc, 1519 path_type_desc[i].desc, cfg->phy, 1520 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1521 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1522 } else if (cfg->phy == 0xff) { 1523 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 1524 "WWN=%08X%08X\n", path_status_desc[j].desc, 1525 path_type_desc[i].desc, cfg->cascaded_expander, 1526 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1527 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1528 } else { 1529 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 1530 "WWN=%08X%08X\n", path_status_desc[j].desc, 1531 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 1532 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1533 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1534 } 1535 } 1536 return; 1537 } 1538 } 1539 1540 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 1541 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 1542 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1543 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1544} 1545 1546/** 1547 * ipr_log_fabric_error - Log a fabric error. 1548 * @ioa_cfg: ioa config struct 1549 * @hostrcb: hostrcb struct 1550 * 1551 * Return value: 1552 * none 1553 **/ 1554static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 1555 struct ipr_hostrcb *hostrcb) 1556{ 1557 struct ipr_hostrcb_type_20_error *error; 1558 struct ipr_hostrcb_fabric_desc *fabric; 1559 struct ipr_hostrcb_config_element *cfg; 1560 int i, add_len; 1561 1562 error = &hostrcb->hcam.u.error.u.type_20_error; 1563 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1564 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 1565 1566 add_len = be32_to_cpu(hostrcb->hcam.length) - 1567 (offsetof(struct ipr_hostrcb_error, u) + 1568 offsetof(struct ipr_hostrcb_type_20_error, desc)); 1569 1570 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 1571 ipr_log_fabric_path(hostrcb, fabric); 1572 for_each_fabric_cfg(fabric, cfg) 1573 ipr_log_path_elem(hostrcb, cfg); 1574 1575 add_len -= be16_to_cpu(fabric->length); 1576 fabric = (struct ipr_hostrcb_fabric_desc *) 1577 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 1578 } 1579 1580 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 1581} 1582 1583/** 1584 * ipr_log_generic_error - Log an adapter error. 1585 * @ioa_cfg: ioa config struct 1586 * @hostrcb: hostrcb struct 1587 * 1588 * Return value: 1589 * none 1590 **/ 1591static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 1592 struct ipr_hostrcb *hostrcb) 1593{ 1594 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 1595 be32_to_cpu(hostrcb->hcam.length)); 1596} 1597 1598/** 1599 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 1600 * @ioasc: IOASC 1601 * 1602 * This function will return the index of into the ipr_error_table 1603 * for the specified IOASC. If the IOASC is not in the table, 1604 * 0 will be returned, which points to the entry used for unknown errors. 1605 * 1606 * Return value: 1607 * index into the ipr_error_table 1608 **/ 1609static u32 ipr_get_error(u32 ioasc) 1610{ 1611 int i; 1612 1613 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 1614 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 1615 return i; 1616 1617 return 0; 1618} 1619 1620/** 1621 * ipr_handle_log_data - Log an adapter error. 1622 * @ioa_cfg: ioa config struct 1623 * @hostrcb: hostrcb struct 1624 * 1625 * This function logs an adapter error to the system. 1626 * 1627 * Return value: 1628 * none 1629 **/ 1630static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 1631 struct ipr_hostrcb *hostrcb) 1632{ 1633 u32 ioasc; 1634 int error_index; 1635 1636 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 1637 return; 1638 1639 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 1640 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 1641 1642 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 1643 1644 if (ioasc == IPR_IOASC_BUS_WAS_RESET || 1645 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) { 1646 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 1647 scsi_report_bus_reset(ioa_cfg->host, 1648 hostrcb->hcam.u.error.failing_dev_res_addr.bus); 1649 } 1650 1651 error_index = ipr_get_error(ioasc); 1652 1653 if (!ipr_error_table[error_index].log_hcam) 1654 return; 1655 1656 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 1657 1658 /* Set indication we have logged an error */ 1659 ioa_cfg->errors_logged++; 1660 1661 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 1662 return; 1663 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 1664 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 1665 1666 switch (hostrcb->hcam.overlay_id) { 1667 case IPR_HOST_RCB_OVERLAY_ID_2: 1668 ipr_log_cache_error(ioa_cfg, hostrcb); 1669 break; 1670 case IPR_HOST_RCB_OVERLAY_ID_3: 1671 ipr_log_config_error(ioa_cfg, hostrcb); 1672 break; 1673 case IPR_HOST_RCB_OVERLAY_ID_4: 1674 case IPR_HOST_RCB_OVERLAY_ID_6: 1675 ipr_log_array_error(ioa_cfg, hostrcb); 1676 break; 1677 case IPR_HOST_RCB_OVERLAY_ID_7: 1678 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 1679 break; 1680 case IPR_HOST_RCB_OVERLAY_ID_12: 1681 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 1682 break; 1683 case IPR_HOST_RCB_OVERLAY_ID_13: 1684 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 1685 break; 1686 case IPR_HOST_RCB_OVERLAY_ID_14: 1687 case IPR_HOST_RCB_OVERLAY_ID_16: 1688 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 1689 break; 1690 case IPR_HOST_RCB_OVERLAY_ID_17: 1691 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 1692 break; 1693 case IPR_HOST_RCB_OVERLAY_ID_20: 1694 ipr_log_fabric_error(ioa_cfg, hostrcb); 1695 break; 1696 case IPR_HOST_RCB_OVERLAY_ID_1: 1697 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 1698 default: 1699 ipr_log_generic_error(ioa_cfg, hostrcb); 1700 break; 1701 } 1702} 1703 1704/** 1705 * ipr_process_error - Op done function for an adapter error log. 1706 * @ipr_cmd: ipr command struct 1707 * 1708 * This function is the op done function for an error log host 1709 * controlled async from the adapter. It will log the error and 1710 * send the HCAM back to the adapter. 1711 * 1712 * Return value: 1713 * none 1714 **/ 1715static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 1716{ 1717 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1718 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1719 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 1720 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 1721 1722 list_del(&hostrcb->queue); 1723 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1724 1725 if (!ioasc) { 1726 ipr_handle_log_data(ioa_cfg, hostrcb); 1727 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 1728 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 1729 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 1730 dev_err(&ioa_cfg->pdev->dev, 1731 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1732 } 1733 1734 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 1735} 1736 1737/** 1738 * ipr_timeout - An internally generated op has timed out. 1739 * @ipr_cmd: ipr command struct 1740 * 1741 * This function blocks host requests and initiates an 1742 * adapter reset. 1743 * 1744 * Return value: 1745 * none 1746 **/ 1747static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 1748{ 1749 unsigned long lock_flags = 0; 1750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1751 1752 ENTER; 1753 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 1754 1755 ioa_cfg->errors_logged++; 1756 dev_err(&ioa_cfg->pdev->dev, 1757 "Adapter being reset due to command timeout.\n"); 1758 1759 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 1760 ioa_cfg->sdt_state = GET_DUMP; 1761 1762 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 1763 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 1764 1765 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 1766 LEAVE; 1767} 1768 1769/** 1770 * ipr_oper_timeout - Adapter timed out transitioning to operational 1771 * @ipr_cmd: ipr command struct 1772 * 1773 * This function blocks host requests and initiates an 1774 * adapter reset. 1775 * 1776 * Return value: 1777 * none 1778 **/ 1779static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 1780{ 1781 unsigned long lock_flags = 0; 1782 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1783 1784 ENTER; 1785 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 1786 1787 ioa_cfg->errors_logged++; 1788 dev_err(&ioa_cfg->pdev->dev, 1789 "Adapter timed out transitioning to operational.\n"); 1790 1791 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 1792 ioa_cfg->sdt_state = GET_DUMP; 1793 1794 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 1795 if (ipr_fastfail) 1796 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 1797 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 1798 } 1799 1800 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 1801 LEAVE; 1802} 1803 1804/** 1805 * ipr_reset_reload - Reset/Reload the IOA 1806 * @ioa_cfg: ioa config struct 1807 * @shutdown_type: shutdown type 1808 * 1809 * This function resets the adapter and re-initializes it. 1810 * This function assumes that all new host commands have been stopped. 1811 * Return value: 1812 * SUCCESS / FAILED 1813 **/ 1814static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 1815 enum ipr_shutdown_type shutdown_type) 1816{ 1817 if (!ioa_cfg->in_reset_reload) 1818 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 1819 1820 spin_unlock_irq(ioa_cfg->host->host_lock); 1821 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 1822 spin_lock_irq(ioa_cfg->host->host_lock); 1823 1824 /* If we got hit with a host reset while we were already resetting 1825 the adapter for some reason, and the reset failed. */ 1826 if (ioa_cfg->ioa_is_dead) { 1827 ipr_trace; 1828 return FAILED; 1829 } 1830 1831 return SUCCESS; 1832} 1833 1834/** 1835 * ipr_find_ses_entry - Find matching SES in SES table 1836 * @res: resource entry struct of SES 1837 * 1838 * Return value: 1839 * pointer to SES table entry / NULL on failure 1840 **/ 1841static const struct ipr_ses_table_entry * 1842ipr_find_ses_entry(struct ipr_resource_entry *res) 1843{ 1844 int i, j, matches; 1845 const struct ipr_ses_table_entry *ste = ipr_ses_table; 1846 1847 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 1848 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 1849 if (ste->compare_product_id_byte[j] == 'X') { 1850 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j]) 1851 matches++; 1852 else 1853 break; 1854 } else 1855 matches++; 1856 } 1857 1858 if (matches == IPR_PROD_ID_LEN) 1859 return ste; 1860 } 1861 1862 return NULL; 1863} 1864 1865/** 1866 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 1867 * @ioa_cfg: ioa config struct 1868 * @bus: SCSI bus 1869 * @bus_width: bus width 1870 * 1871 * Return value: 1872 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 1873 * For a 2-byte wide SCSI bus, the maximum transfer speed is 1874 * twice the maximum transfer rate (e.g. for a wide enabled bus, 1875 * max 160MHz = max 320MB/sec). 1876 **/ 1877static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 1878{ 1879 struct ipr_resource_entry *res; 1880 const struct ipr_ses_table_entry *ste; 1881 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 1882 1883 /* Loop through each config table entry in the config table buffer */ 1884 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1885 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data))) 1886 continue; 1887 1888 if (bus != res->cfgte.res_addr.bus) 1889 continue; 1890 1891 if (!(ste = ipr_find_ses_entry(res))) 1892 continue; 1893 1894 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 1895 } 1896 1897 return max_xfer_rate; 1898} 1899 1900/** 1901 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 1902 * @ioa_cfg: ioa config struct 1903 * @max_delay: max delay in micro-seconds to wait 1904 * 1905 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 1906 * 1907 * Return value: 1908 * 0 on success / other on failure 1909 **/ 1910static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 1911{ 1912 volatile u32 pcii_reg; 1913 int delay = 1; 1914 1915 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 1916 while (delay < max_delay) { 1917 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 1918 1919 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 1920 return 0; 1921 1922 /* udelay cannot be used if delay is more than a few milliseconds */ 1923 if ((delay / 1000) > MAX_UDELAY_MS) 1924 mdelay(delay / 1000); 1925 else 1926 udelay(delay); 1927 1928 delay += delay; 1929 } 1930 return -EIO; 1931} 1932 1933/** 1934 * ipr_get_ldump_data_section - Dump IOA memory 1935 * @ioa_cfg: ioa config struct 1936 * @start_addr: adapter address to dump 1937 * @dest: destination kernel buffer 1938 * @length_in_words: length to dump in 4 byte words 1939 * 1940 * Return value: 1941 * 0 on success / -EIO on failure 1942 **/ 1943static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 1944 u32 start_addr, 1945 __be32 *dest, u32 length_in_words) 1946{ 1947 volatile u32 temp_pcii_reg; 1948 int i, delay = 0; 1949 1950 /* Write IOA interrupt reg starting LDUMP state */ 1951 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 1952 ioa_cfg->regs.set_uproc_interrupt_reg); 1953 1954 /* Wait for IO debug acknowledge */ 1955 if (ipr_wait_iodbg_ack(ioa_cfg, 1956 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 1957 dev_err(&ioa_cfg->pdev->dev, 1958 "IOA dump long data transfer timeout\n"); 1959 return -EIO; 1960 } 1961 1962 /* Signal LDUMP interlocked - clear IO debug ack */ 1963 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 1964 ioa_cfg->regs.clr_interrupt_reg); 1965 1966 /* Write Mailbox with starting address */ 1967 writel(start_addr, ioa_cfg->ioa_mailbox); 1968 1969 /* Signal address valid - clear IOA Reset alert */ 1970 writel(IPR_UPROCI_RESET_ALERT, 1971 ioa_cfg->regs.clr_uproc_interrupt_reg); 1972 1973 for (i = 0; i < length_in_words; i++) { 1974 /* Wait for IO debug acknowledge */ 1975 if (ipr_wait_iodbg_ack(ioa_cfg, 1976 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 1977 dev_err(&ioa_cfg->pdev->dev, 1978 "IOA dump short data transfer timeout\n"); 1979 return -EIO; 1980 } 1981 1982 /* Read data from mailbox and increment destination pointer */ 1983 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 1984 dest++; 1985 1986 /* For all but the last word of data, signal data received */ 1987 if (i < (length_in_words - 1)) { 1988 /* Signal dump data received - Clear IO debug Ack */ 1989 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 1990 ioa_cfg->regs.clr_interrupt_reg); 1991 } 1992 } 1993 1994 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 1995 writel(IPR_UPROCI_RESET_ALERT, 1996 ioa_cfg->regs.set_uproc_interrupt_reg); 1997 1998 writel(IPR_UPROCI_IO_DEBUG_ALERT, 1999 ioa_cfg->regs.clr_uproc_interrupt_reg); 2000 2001 /* Signal dump data received - Clear IO debug Ack */ 2002 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2003 ioa_cfg->regs.clr_interrupt_reg); 2004 2005 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2006 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2007 temp_pcii_reg = 2008 readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 2009 2010 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2011 return 0; 2012 2013 udelay(10); 2014 delay += 10; 2015 } 2016 2017 return 0; 2018} 2019 2020#ifdef CONFIG_SCSI_IPR_DUMP 2021/** 2022 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2023 * @ioa_cfg: ioa config struct 2024 * @pci_address: adapter address 2025 * @length: length of data to copy 2026 * 2027 * Copy data from PCI adapter to kernel buffer. 2028 * Note: length MUST be a 4 byte multiple 2029 * Return value: 2030 * 0 on success / other on failure 2031 **/ 2032static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2033 unsigned long pci_address, u32 length) 2034{ 2035 int bytes_copied = 0; 2036 int cur_len, rc, rem_len, rem_page_len; 2037 __be32 *page; 2038 unsigned long lock_flags = 0; 2039 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2040 2041 while (bytes_copied < length && 2042 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2043 if (ioa_dump->page_offset >= PAGE_SIZE || 2044 ioa_dump->page_offset == 0) { 2045 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2046 2047 if (!page) { 2048 ipr_trace; 2049 return bytes_copied; 2050 } 2051 2052 ioa_dump->page_offset = 0; 2053 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2054 ioa_dump->next_page_index++; 2055 } else 2056 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2057 2058 rem_len = length - bytes_copied; 2059 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2060 cur_len = min(rem_len, rem_page_len); 2061 2062 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2063 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2064 rc = -EIO; 2065 } else { 2066 rc = ipr_get_ldump_data_section(ioa_cfg, 2067 pci_address + bytes_copied, 2068 &page[ioa_dump->page_offset / 4], 2069 (cur_len / sizeof(u32))); 2070 } 2071 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2072 2073 if (!rc) { 2074 ioa_dump->page_offset += cur_len; 2075 bytes_copied += cur_len; 2076 } else { 2077 ipr_trace; 2078 break; 2079 } 2080 schedule(); 2081 } 2082 2083 return bytes_copied; 2084} 2085 2086/** 2087 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2088 * @hdr: dump entry header struct 2089 * 2090 * Return value: 2091 * nothing 2092 **/ 2093static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2094{ 2095 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2096 hdr->num_elems = 1; 2097 hdr->offset = sizeof(*hdr); 2098 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2099} 2100 2101/** 2102 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2103 * @ioa_cfg: ioa config struct 2104 * @driver_dump: driver dump struct 2105 * 2106 * Return value: 2107 * nothing 2108 **/ 2109static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2110 struct ipr_driver_dump *driver_dump) 2111{ 2112 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2113 2114 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2115 driver_dump->ioa_type_entry.hdr.len = 2116 sizeof(struct ipr_dump_ioa_type_entry) - 2117 sizeof(struct ipr_dump_entry_header); 2118 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2119 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2120 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2121 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2122 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2123 ucode_vpd->minor_release[1]; 2124 driver_dump->hdr.num_entries++; 2125} 2126 2127/** 2128 * ipr_dump_version_data - Fill in the driver version 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_version_data(struct ipr_ioa_cfg *ioa_cfg, 2136 struct ipr_driver_dump *driver_dump) 2137{ 2138 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2139 driver_dump->version_entry.hdr.len = 2140 sizeof(struct ipr_dump_version_entry) - 2141 sizeof(struct ipr_dump_entry_header); 2142 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2143 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2144 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2145 driver_dump->hdr.num_entries++; 2146} 2147 2148/** 2149 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2150 * @ioa_cfg: ioa config struct 2151 * @driver_dump: driver dump struct 2152 * 2153 * Return value: 2154 * nothing 2155 **/ 2156static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2157 struct ipr_driver_dump *driver_dump) 2158{ 2159 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2160 driver_dump->trace_entry.hdr.len = 2161 sizeof(struct ipr_dump_trace_entry) - 2162 sizeof(struct ipr_dump_entry_header); 2163 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2164 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2165 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2166 driver_dump->hdr.num_entries++; 2167} 2168 2169/** 2170 * ipr_dump_location_data - Fill in the IOA location in the dump. 2171 * @ioa_cfg: ioa config struct 2172 * @driver_dump: driver dump struct 2173 * 2174 * Return value: 2175 * nothing 2176 **/ 2177static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2178 struct ipr_driver_dump *driver_dump) 2179{ 2180 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2181 driver_dump->location_entry.hdr.len = 2182 sizeof(struct ipr_dump_location_entry) - 2183 sizeof(struct ipr_dump_entry_header); 2184 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2185 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2186 strcpy(driver_dump->location_entry.location, ioa_cfg->pdev->dev.bus_id); 2187 driver_dump->hdr.num_entries++; 2188} 2189 2190/** 2191 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2192 * @ioa_cfg: ioa config struct 2193 * @dump: dump struct 2194 * 2195 * Return value: 2196 * nothing 2197 **/ 2198static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2199{ 2200 unsigned long start_addr, sdt_word; 2201 unsigned long lock_flags = 0; 2202 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2203 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2204 u32 num_entries, start_off, end_off; 2205 u32 bytes_to_copy, bytes_copied, rc; 2206 struct ipr_sdt *sdt; 2207 int i; 2208 2209 ENTER; 2210 2211 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2212 2213 if (ioa_cfg->sdt_state != GET_DUMP) { 2214 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2215 return; 2216 } 2217 2218 start_addr = readl(ioa_cfg->ioa_mailbox); 2219 2220 if (!ipr_sdt_is_fmt2(start_addr)) { 2221 dev_err(&ioa_cfg->pdev->dev, 2222 "Invalid dump table format: %lx\n", start_addr); 2223 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2224 return; 2225 } 2226 2227 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2228 2229 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2230 2231 /* Initialize the overall dump header */ 2232 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2233 driver_dump->hdr.num_entries = 1; 2234 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2235 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2236 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2237 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2238 2239 ipr_dump_version_data(ioa_cfg, driver_dump); 2240 ipr_dump_location_data(ioa_cfg, driver_dump); 2241 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2242 ipr_dump_trace_data(ioa_cfg, driver_dump); 2243 2244 /* Update dump_header */ 2245 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2246 2247 /* IOA Dump entry */ 2248 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2249 ioa_dump->format = IPR_SDT_FMT2; 2250 ioa_dump->hdr.len = 0; 2251 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2252 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2253 2254 /* First entries in sdt are actually a list of dump addresses and 2255 lengths to gather the real dump data. sdt represents the pointer 2256 to the ioa generated dump table. Dump data will be extracted based 2257 on entries in this table */ 2258 sdt = &ioa_dump->sdt; 2259 2260 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2261 sizeof(struct ipr_sdt) / sizeof(__be32)); 2262 2263 /* Smart Dump table is ready to use and the first entry is valid */ 2264 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) { 2265 dev_err(&ioa_cfg->pdev->dev, 2266 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2267 rc, be32_to_cpu(sdt->hdr.state)); 2268 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2269 ioa_cfg->sdt_state = DUMP_OBTAINED; 2270 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2271 return; 2272 } 2273 2274 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2275 2276 if (num_entries > IPR_NUM_SDT_ENTRIES) 2277 num_entries = IPR_NUM_SDT_ENTRIES; 2278 2279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2280 2281 for (i = 0; i < num_entries; i++) { 2282 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2283 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2284 break; 2285 } 2286 2287 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2288 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset); 2289 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2290 end_off = be32_to_cpu(sdt->entry[i].end_offset); 2291 2292 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) { 2293 bytes_to_copy = end_off - start_off; 2294 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2295 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2296 continue; 2297 } 2298 2299 /* Copy data from adapter to driver buffers */ 2300 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2301 bytes_to_copy); 2302 2303 ioa_dump->hdr.len += bytes_copied; 2304 2305 if (bytes_copied != bytes_to_copy) { 2306 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2307 break; 2308 } 2309 } 2310 } 2311 } 2312 2313 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 2314 2315 /* Update dump_header */ 2316 driver_dump->hdr.len += ioa_dump->hdr.len; 2317 wmb(); 2318 ioa_cfg->sdt_state = DUMP_OBTAINED; 2319 LEAVE; 2320} 2321 2322#else 2323#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 2324#endif 2325 2326/** 2327 * ipr_release_dump - Free adapter dump memory 2328 * @kref: kref struct 2329 * 2330 * Return value: 2331 * nothing 2332 **/ 2333static void ipr_release_dump(struct kref *kref) 2334{ 2335 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 2336 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 2337 unsigned long lock_flags = 0; 2338 int i; 2339 2340 ENTER; 2341 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2342 ioa_cfg->dump = NULL; 2343 ioa_cfg->sdt_state = INACTIVE; 2344 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2345 2346 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 2347 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 2348 2349 kfree(dump); 2350 LEAVE; 2351} 2352 2353/** 2354 * ipr_worker_thread - Worker thread 2355 * @work: ioa config struct 2356 * 2357 * Called at task level from a work thread. This function takes care 2358 * of adding and removing device from the mid-layer as configuration 2359 * changes are detected by the adapter. 2360 * 2361 * Return value: 2362 * nothing 2363 **/ 2364static void ipr_worker_thread(struct work_struct *work) 2365{ 2366 unsigned long lock_flags; 2367 struct ipr_resource_entry *res; 2368 struct scsi_device *sdev; 2369 struct ipr_dump *dump; 2370 struct ipr_ioa_cfg *ioa_cfg = 2371 container_of(work, struct ipr_ioa_cfg, work_q); 2372 u8 bus, target, lun; 2373 int did_work; 2374 2375 ENTER; 2376 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2377 2378 if (ioa_cfg->sdt_state == GET_DUMP) { 2379 dump = ioa_cfg->dump; 2380 if (!dump) { 2381 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2382 return; 2383 } 2384 kref_get(&dump->kref); 2385 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2386 ipr_get_ioa_dump(ioa_cfg, dump); 2387 kref_put(&dump->kref, ipr_release_dump); 2388 2389 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2390 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 2391 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2392 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2393 return; 2394 } 2395 2396restart: 2397 do { 2398 did_work = 0; 2399 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 2400 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2401 return; 2402 } 2403 2404 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2405 if (res->del_from_ml && res->sdev) { 2406 did_work = 1; 2407 sdev = res->sdev; 2408 if (!scsi_device_get(sdev)) { 2409 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 2410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2411 scsi_remove_device(sdev); 2412 scsi_device_put(sdev); 2413 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2414 } 2415 break; 2416 } 2417 } 2418 } while(did_work); 2419 2420 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2421 if (res->add_to_ml) { 2422 bus = res->cfgte.res_addr.bus; 2423 target = res->cfgte.res_addr.target; 2424 lun = res->cfgte.res_addr.lun; 2425 res->add_to_ml = 0; 2426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2427 scsi_add_device(ioa_cfg->host, bus, target, lun); 2428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2429 goto restart; 2430 } 2431 } 2432 2433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2434 kobject_uevent(&ioa_cfg->host->shost_classdev.kobj, KOBJ_CHANGE); 2435 LEAVE; 2436} 2437 2438#ifdef CONFIG_SCSI_IPR_TRACE 2439/** 2440 * ipr_read_trace - Dump the adapter trace 2441 * @kobj: kobject struct 2442 * @buf: buffer 2443 * @off: offset 2444 * @count: buffer size 2445 * 2446 * Return value: 2447 * number of bytes printed to buffer 2448 **/ 2449static ssize_t ipr_read_trace(struct kobject *kobj, char *buf, 2450 loff_t off, size_t count) 2451{ 2452 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 2453 struct Scsi_Host *shost = class_to_shost(cdev); 2454 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2455 unsigned long lock_flags = 0; 2456 int size = IPR_TRACE_SIZE; 2457 char *src = (char *)ioa_cfg->trace; 2458 2459 if (off > size) 2460 return 0; 2461 if (off + count > size) { 2462 size -= off; 2463 count = size; 2464 } 2465 2466 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2467 memcpy(buf, &src[off], count); 2468 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2469 return count; 2470} 2471 2472static struct bin_attribute ipr_trace_attr = { 2473 .attr = { 2474 .name = "trace", 2475 .mode = S_IRUGO, 2476 }, 2477 .size = 0, 2478 .read = ipr_read_trace, 2479}; 2480#endif 2481 2482static const struct { 2483 enum ipr_cache_state state; 2484 char *name; 2485} cache_state [] = { 2486 { CACHE_NONE, "none" }, 2487 { CACHE_DISABLED, "disabled" }, 2488 { CACHE_ENABLED, "enabled" } 2489}; 2490 2491/** 2492 * ipr_show_write_caching - Show the write caching attribute 2493 * @class_dev: class device struct 2494 * @buf: buffer 2495 * 2496 * Return value: 2497 * number of bytes printed to buffer 2498 **/ 2499static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) 2500{ 2501 struct Scsi_Host *shost = class_to_shost(class_dev); 2502 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2503 unsigned long lock_flags = 0; 2504 int i, len = 0; 2505 2506 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2507 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2508 if (cache_state[i].state == ioa_cfg->cache_state) { 2509 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); 2510 break; 2511 } 2512 } 2513 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2514 return len; 2515} 2516 2517 2518/** 2519 * ipr_store_write_caching - Enable/disable adapter write cache 2520 * @class_dev: class_device struct 2521 * @buf: buffer 2522 * @count: buffer size 2523 * 2524 * This function will enable/disable adapter write cache. 2525 * 2526 * Return value: 2527 * count on success / other on failure 2528 **/ 2529static ssize_t ipr_store_write_caching(struct class_device *class_dev, 2530 const char *buf, size_t count) 2531{ 2532 struct Scsi_Host *shost = class_to_shost(class_dev); 2533 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2534 unsigned long lock_flags = 0; 2535 enum ipr_cache_state new_state = CACHE_INVALID; 2536 int i; 2537 2538 if (!capable(CAP_SYS_ADMIN)) 2539 return -EACCES; 2540 if (ioa_cfg->cache_state == CACHE_NONE) 2541 return -EINVAL; 2542 2543 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2544 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { 2545 new_state = cache_state[i].state; 2546 break; 2547 } 2548 } 2549 2550 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) 2551 return -EINVAL; 2552 2553 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2554 if (ioa_cfg->cache_state == new_state) { 2555 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2556 return count; 2557 } 2558 2559 ioa_cfg->cache_state = new_state; 2560 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", 2561 new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); 2562 if (!ioa_cfg->in_reset_reload) 2563 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2564 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2565 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2566 2567 return count; 2568} 2569 2570static struct class_device_attribute ipr_ioa_cache_attr = { 2571 .attr = { 2572 .name = "write_cache", 2573 .mode = S_IRUGO | S_IWUSR, 2574 }, 2575 .show = ipr_show_write_caching, 2576 .store = ipr_store_write_caching 2577}; 2578 2579/** 2580 * ipr_show_fw_version - Show the firmware version 2581 * @class_dev: class device struct 2582 * @buf: buffer 2583 * 2584 * Return value: 2585 * number of bytes printed to buffer 2586 **/ 2587static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) 2588{ 2589 struct Scsi_Host *shost = class_to_shost(class_dev); 2590 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2591 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2592 unsigned long lock_flags = 0; 2593 int len; 2594 2595 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2596 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 2597 ucode_vpd->major_release, ucode_vpd->card_type, 2598 ucode_vpd->minor_release[0], 2599 ucode_vpd->minor_release[1]); 2600 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2601 return len; 2602} 2603 2604static struct class_device_attribute ipr_fw_version_attr = { 2605 .attr = { 2606 .name = "fw_version", 2607 .mode = S_IRUGO, 2608 }, 2609 .show = ipr_show_fw_version, 2610}; 2611 2612/** 2613 * ipr_show_log_level - Show the adapter's error logging level 2614 * @class_dev: class device struct 2615 * @buf: buffer 2616 * 2617 * Return value: 2618 * number of bytes printed to buffer 2619 **/ 2620static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) 2621{ 2622 struct Scsi_Host *shost = class_to_shost(class_dev); 2623 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2624 unsigned long lock_flags = 0; 2625 int len; 2626 2627 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2628 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 2629 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2630 return len; 2631} 2632 2633/** 2634 * ipr_store_log_level - Change the adapter's error logging level 2635 * @class_dev: class device struct 2636 * @buf: buffer 2637 * 2638 * Return value: 2639 * number of bytes printed to buffer 2640 **/ 2641static ssize_t ipr_store_log_level(struct class_device *class_dev, 2642 const char *buf, size_t count) 2643{ 2644 struct Scsi_Host *shost = class_to_shost(class_dev); 2645 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2646 unsigned long lock_flags = 0; 2647 2648 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2649 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 2650 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2651 return strlen(buf); 2652} 2653 2654static struct class_device_attribute ipr_log_level_attr = { 2655 .attr = { 2656 .name = "log_level", 2657 .mode = S_IRUGO | S_IWUSR, 2658 }, 2659 .show = ipr_show_log_level, 2660 .store = ipr_store_log_level 2661}; 2662 2663/** 2664 * ipr_store_diagnostics - IOA Diagnostics interface 2665 * @class_dev: class_device struct 2666 * @buf: buffer 2667 * @count: buffer size 2668 * 2669 * This function will reset the adapter and wait a reasonable 2670 * amount of time for any errors that the adapter might log. 2671 * 2672 * Return value: 2673 * count on success / other on failure 2674 **/ 2675static ssize_t ipr_store_diagnostics(struct class_device *class_dev, 2676 const char *buf, size_t count) 2677{ 2678 struct Scsi_Host *shost = class_to_shost(class_dev); 2679 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2680 unsigned long lock_flags = 0; 2681 int rc = count; 2682 2683 if (!capable(CAP_SYS_ADMIN)) 2684 return -EACCES; 2685 2686 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2687 while(ioa_cfg->in_reset_reload) { 2688 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2689 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2690 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2691 } 2692 2693 ioa_cfg->errors_logged = 0; 2694 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2695 2696 if (ioa_cfg->in_reset_reload) { 2697 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2698 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2699 2700 /* Wait for a second for any errors to be logged */ 2701 msleep(1000); 2702 } else { 2703 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2704 return -EIO; 2705 } 2706 2707 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2708 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 2709 rc = -EIO; 2710 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2711 2712 return rc; 2713} 2714 2715static struct class_device_attribute ipr_diagnostics_attr = { 2716 .attr = { 2717 .name = "run_diagnostics", 2718 .mode = S_IWUSR, 2719 }, 2720 .store = ipr_store_diagnostics 2721}; 2722 2723/** 2724 * ipr_show_adapter_state - Show the adapter's state 2725 * @class_dev: class device struct 2726 * @buf: buffer 2727 * 2728 * Return value: 2729 * number of bytes printed to buffer 2730 **/ 2731static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) 2732{ 2733 struct Scsi_Host *shost = class_to_shost(class_dev); 2734 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2735 unsigned long lock_flags = 0; 2736 int len; 2737 2738 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2739 if (ioa_cfg->ioa_is_dead) 2740 len = snprintf(buf, PAGE_SIZE, "offline\n"); 2741 else 2742 len = snprintf(buf, PAGE_SIZE, "online\n"); 2743 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2744 return len; 2745} 2746 2747/** 2748 * ipr_store_adapter_state - Change adapter state 2749 * @class_dev: class_device struct 2750 * @buf: buffer 2751 * @count: buffer size 2752 * 2753 * This function will change the adapter's state. 2754 * 2755 * Return value: 2756 * count on success / other on failure 2757 **/ 2758static ssize_t ipr_store_adapter_state(struct class_device *class_dev, 2759 const char *buf, size_t count) 2760{ 2761 struct Scsi_Host *shost = class_to_shost(class_dev); 2762 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2763 unsigned long lock_flags; 2764 int result = count; 2765 2766 if (!capable(CAP_SYS_ADMIN)) 2767 return -EACCES; 2768 2769 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2770 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 2771 ioa_cfg->ioa_is_dead = 0; 2772 ioa_cfg->reset_retries = 0; 2773 ioa_cfg->in_ioa_bringdown = 0; 2774 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2775 } 2776 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2777 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2778 2779 return result; 2780} 2781 2782static struct class_device_attribute ipr_ioa_state_attr = { 2783 .attr = { 2784 .name = "state", 2785 .mode = S_IRUGO | S_IWUSR, 2786 }, 2787 .show = ipr_show_adapter_state, 2788 .store = ipr_store_adapter_state 2789}; 2790 2791/** 2792 * ipr_store_reset_adapter - Reset the adapter 2793 * @class_dev: class_device struct 2794 * @buf: buffer 2795 * @count: buffer size 2796 * 2797 * This function will reset the adapter. 2798 * 2799 * Return value: 2800 * count on success / other on failure 2801 **/ 2802static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, 2803 const char *buf, size_t count) 2804{ 2805 struct Scsi_Host *shost = class_to_shost(class_dev); 2806 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2807 unsigned long lock_flags; 2808 int result = count; 2809 2810 if (!capable(CAP_SYS_ADMIN)) 2811 return -EACCES; 2812 2813 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2814 if (!ioa_cfg->in_reset_reload) 2815 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2816 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2817 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2818 2819 return result; 2820} 2821 2822static struct class_device_attribute ipr_ioa_reset_attr = { 2823 .attr = { 2824 .name = "reset_host", 2825 .mode = S_IWUSR, 2826 }, 2827 .store = ipr_store_reset_adapter 2828}; 2829 2830/** 2831 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 2832 * @buf_len: buffer length 2833 * 2834 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 2835 * list to use for microcode download 2836 * 2837 * Return value: 2838 * pointer to sglist / NULL on failure 2839 **/ 2840static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 2841{ 2842 int sg_size, order, bsize_elem, num_elem, i, j; 2843 struct ipr_sglist *sglist; 2844 struct scatterlist *scatterlist; 2845 struct page *page; 2846 2847 /* Get the minimum size per scatter/gather element */ 2848 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 2849 2850 /* Get the actual size per element */ 2851 order = get_order(sg_size); 2852 2853 /* Determine the actual number of bytes per element */ 2854 bsize_elem = PAGE_SIZE * (1 << order); 2855 2856 /* Determine the actual number of sg entries needed */ 2857 if (buf_len % bsize_elem) 2858 num_elem = (buf_len / bsize_elem) + 1; 2859 else 2860 num_elem = buf_len / bsize_elem; 2861 2862 /* Allocate a scatter/gather list for the DMA */ 2863 sglist = kzalloc(sizeof(struct ipr_sglist) + 2864 (sizeof(struct scatterlist) * (num_elem - 1)), 2865 GFP_KERNEL); 2866 2867 if (sglist == NULL) { 2868 ipr_trace; 2869 return NULL; 2870 } 2871 2872 scatterlist = sglist->scatterlist; 2873 2874 sglist->order = order; 2875 sglist->num_sg = num_elem; 2876 2877 /* Allocate a bunch of sg elements */ 2878 for (i = 0; i < num_elem; i++) { 2879 page = alloc_pages(GFP_KERNEL, order); 2880 if (!page) { 2881 ipr_trace; 2882 2883 /* Free up what we already allocated */ 2884 for (j = i - 1; j >= 0; j--) 2885 __free_pages(scatterlist[j].page, order); 2886 kfree(sglist); 2887 return NULL; 2888 } 2889 2890 scatterlist[i].page = page; 2891 } 2892 2893 return sglist; 2894} 2895 2896/** 2897 * ipr_free_ucode_buffer - Frees a microcode download buffer 2898 * @p_dnld: scatter/gather list pointer 2899 * 2900 * Free a DMA'able ucode download buffer previously allocated with 2901 * ipr_alloc_ucode_buffer 2902 * 2903 * Return value: 2904 * nothing 2905 **/ 2906static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 2907{ 2908 int i; 2909 2910 for (i = 0; i < sglist->num_sg; i++) 2911 __free_pages(sglist->scatterlist[i].page, sglist->order); 2912 2913 kfree(sglist); 2914} 2915 2916/** 2917 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 2918 * @sglist: scatter/gather list pointer 2919 * @buffer: buffer pointer 2920 * @len: buffer length 2921 * 2922 * Copy a microcode image from a user buffer into a buffer allocated by 2923 * ipr_alloc_ucode_buffer 2924 * 2925 * Return value: 2926 * 0 on success / other on failure 2927 **/ 2928static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 2929 u8 *buffer, u32 len) 2930{ 2931 int bsize_elem, i, result = 0; 2932 struct scatterlist *scatterlist; 2933 void *kaddr; 2934 2935 /* Determine the actual number of bytes per element */ 2936 bsize_elem = PAGE_SIZE * (1 << sglist->order); 2937 2938 scatterlist = sglist->scatterlist; 2939 2940 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 2941 kaddr = kmap(scatterlist[i].page); 2942 memcpy(kaddr, buffer, bsize_elem); 2943 kunmap(scatterlist[i].page); 2944 2945 scatterlist[i].length = bsize_elem; 2946 2947 if (result != 0) { 2948 ipr_trace; 2949 return result; 2950 } 2951 } 2952 2953 if (len % bsize_elem) { 2954 kaddr = kmap(scatterlist[i].page); 2955 memcpy(kaddr, buffer, len % bsize_elem); 2956 kunmap(scatterlist[i].page); 2957 2958 scatterlist[i].length = len % bsize_elem; 2959 } 2960 2961 sglist->buffer_len = len; 2962 return result; 2963} 2964 2965/** 2966 * ipr_build_ucode_ioadl - Build a microcode download IOADL 2967 * @ipr_cmd: ipr command struct 2968 * @sglist: scatter/gather list 2969 * 2970 * Builds a microcode download IOA data list (IOADL). 2971 * 2972 **/ 2973static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 2974 struct ipr_sglist *sglist) 2975{ 2976 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 2977 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 2978 struct scatterlist *scatterlist = sglist->scatterlist; 2979 int i; 2980 2981 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 2982 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 2983 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); 2984 ioarcb->write_ioadl_len = 2985 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 2986 2987 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 2988 ioadl[i].flags_and_data_len = 2989 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 2990 ioadl[i].address = 2991 cpu_to_be32(sg_dma_address(&scatterlist[i])); 2992 } 2993 2994 ioadl[i-1].flags_and_data_len |= 2995 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 2996} 2997 2998/** 2999 * ipr_update_ioa_ucode - Update IOA's microcode 3000 * @ioa_cfg: ioa config struct 3001 * @sglist: scatter/gather list 3002 * 3003 * Initiate an adapter reset to update the IOA's microcode 3004 * 3005 * Return value: 3006 * 0 on success / -EIO on failure 3007 **/ 3008static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3009 struct ipr_sglist *sglist) 3010{ 3011 unsigned long lock_flags; 3012 3013 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3014 while(ioa_cfg->in_reset_reload) { 3015 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3016 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3017 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3018 } 3019 3020 if (ioa_cfg->ucode_sglist) { 3021 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3022 dev_err(&ioa_cfg->pdev->dev, 3023 "Microcode download already in progress\n"); 3024 return -EIO; 3025 } 3026 3027 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3028 sglist->num_sg, DMA_TO_DEVICE); 3029 3030 if (!sglist->num_dma_sg) { 3031 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3032 dev_err(&ioa_cfg->pdev->dev, 3033 "Failed to map microcode download buffer!\n"); 3034 return -EIO; 3035 } 3036 3037 ioa_cfg->ucode_sglist = sglist; 3038 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3039 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3040 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3041 3042 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3043 ioa_cfg->ucode_sglist = NULL; 3044 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3045 return 0; 3046} 3047 3048/** 3049 * ipr_store_update_fw - Update the firmware on the adapter 3050 * @class_dev: class_device struct 3051 * @buf: buffer 3052 * @count: buffer size 3053 * 3054 * This function will update the firmware on the adapter. 3055 * 3056 * Return value: 3057 * count on success / other on failure 3058 **/ 3059static ssize_t ipr_store_update_fw(struct class_device *class_dev, 3060 const char *buf, size_t count) 3061{ 3062 struct Scsi_Host *shost = class_to_shost(class_dev); 3063 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3064 struct ipr_ucode_image_header *image_hdr; 3065 const struct firmware *fw_entry; 3066 struct ipr_sglist *sglist; 3067 char fname[100]; 3068 char *src; 3069 int len, result, dnld_size; 3070 3071 if (!capable(CAP_SYS_ADMIN)) 3072 return -EACCES; 3073 3074 len = snprintf(fname, 99, "%s", buf); 3075 fname[len-1] = '\0'; 3076 3077 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3078 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3079 return -EIO; 3080 } 3081 3082 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3083 3084 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3085 (ioa_cfg->vpd_cbs->page3_data.card_type && 3086 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3087 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3088 release_firmware(fw_entry); 3089 return -EINVAL; 3090 } 3091 3092 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3093 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3094 sglist = ipr_alloc_ucode_buffer(dnld_size); 3095 3096 if (!sglist) { 3097 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3098 release_firmware(fw_entry); 3099 return -ENOMEM; 3100 } 3101 3102 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3103 3104 if (result) { 3105 dev_err(&ioa_cfg->pdev->dev, 3106 "Microcode buffer copy to DMA buffer failed\n"); 3107 goto out; 3108 } 3109 3110 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3111 3112 if (!result) 3113 result = count; 3114out: 3115 ipr_free_ucode_buffer(sglist); 3116 release_firmware(fw_entry); 3117 return result; 3118} 3119 3120static struct class_device_attribute ipr_update_fw_attr = { 3121 .attr = { 3122 .name = "update_fw", 3123 .mode = S_IWUSR, 3124 }, 3125 .store = ipr_store_update_fw 3126}; 3127 3128static struct class_device_attribute *ipr_ioa_attrs[] = { 3129 &ipr_fw_version_attr, 3130 &ipr_log_level_attr, 3131 &ipr_diagnostics_attr, 3132 &ipr_ioa_state_attr, 3133 &ipr_ioa_reset_attr, 3134 &ipr_update_fw_attr, 3135 &ipr_ioa_cache_attr, 3136 NULL, 3137}; 3138 3139#ifdef CONFIG_SCSI_IPR_DUMP 3140/** 3141 * ipr_read_dump - Dump the adapter 3142 * @kobj: kobject struct 3143 * @buf: buffer 3144 * @off: offset 3145 * @count: buffer size 3146 * 3147 * Return value: 3148 * number of bytes printed to buffer 3149 **/ 3150static ssize_t ipr_read_dump(struct kobject *kobj, char *buf, 3151 loff_t off, size_t count) 3152{ 3153 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 3154 struct Scsi_Host *shost = class_to_shost(cdev); 3155 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3156 struct ipr_dump *dump; 3157 unsigned long lock_flags = 0; 3158 char *src; 3159 int len; 3160 size_t rc = count; 3161 3162 if (!capable(CAP_SYS_ADMIN)) 3163 return -EACCES; 3164 3165 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3166 dump = ioa_cfg->dump; 3167 3168 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3169 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3170 return 0; 3171 } 3172 kref_get(&dump->kref); 3173 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3174 3175 if (off > dump->driver_dump.hdr.len) { 3176 kref_put(&dump->kref, ipr_release_dump); 3177 return 0; 3178 } 3179 3180 if (off + count > dump->driver_dump.hdr.len) { 3181 count = dump->driver_dump.hdr.len - off; 3182 rc = count; 3183 } 3184 3185 if (count && off < sizeof(dump->driver_dump)) { 3186 if (off + count > sizeof(dump->driver_dump)) 3187 len = sizeof(dump->driver_dump) - off; 3188 else 3189 len = count; 3190 src = (u8 *)&dump->driver_dump + off; 3191 memcpy(buf, src, len); 3192 buf += len; 3193 off += len; 3194 count -= len; 3195 } 3196 3197 off -= sizeof(dump->driver_dump); 3198 3199 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3200 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3201 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3202 else 3203 len = count; 3204 src = (u8 *)&dump->ioa_dump + off; 3205 memcpy(buf, src, len); 3206 buf += len; 3207 off += len; 3208 count -= len; 3209 } 3210 3211 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3212 3213 while (count) { 3214 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3215 len = PAGE_ALIGN(off) - off; 3216 else 3217 len = count; 3218 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3219 src += off & ~PAGE_MASK; 3220 memcpy(buf, src, len); 3221 buf += len; 3222 off += len; 3223 count -= len; 3224 } 3225 3226 kref_put(&dump->kref, ipr_release_dump); 3227 return rc; 3228} 3229 3230/** 3231 * ipr_alloc_dump - Prepare for adapter dump 3232 * @ioa_cfg: ioa config struct 3233 * 3234 * Return value: 3235 * 0 on success / other on failure 3236 **/ 3237static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3238{ 3239 struct ipr_dump *dump; 3240 unsigned long lock_flags = 0; 3241 3242 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3243 3244 if (!dump) { 3245 ipr_err("Dump memory allocation failed\n"); 3246 return -ENOMEM; 3247 } 3248 3249 kref_init(&dump->kref); 3250 dump->ioa_cfg = ioa_cfg; 3251 3252 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3253 3254 if (INACTIVE != ioa_cfg->sdt_state) { 3255 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3256 kfree(dump); 3257 return 0; 3258 } 3259 3260 ioa_cfg->dump = dump; 3261 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3262 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3263 ioa_cfg->dump_taken = 1; 3264 schedule_work(&ioa_cfg->work_q); 3265 } 3266 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3267 3268 return 0; 3269} 3270 3271/** 3272 * ipr_free_dump - Free adapter dump memory 3273 * @ioa_cfg: ioa config struct 3274 * 3275 * Return value: 3276 * 0 on success / other on failure 3277 **/ 3278static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3279{ 3280 struct ipr_dump *dump; 3281 unsigned long lock_flags = 0; 3282 3283 ENTER; 3284 3285 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3286 dump = ioa_cfg->dump; 3287 if (!dump) { 3288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3289 return 0; 3290 } 3291 3292 ioa_cfg->dump = NULL; 3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3294 3295 kref_put(&dump->kref, ipr_release_dump); 3296 3297 LEAVE; 3298 return 0; 3299} 3300 3301/** 3302 * ipr_write_dump - Setup dump state of adapter 3303 * @kobj: kobject struct 3304 * @buf: buffer 3305 * @off: offset 3306 * @count: buffer size 3307 * 3308 * Return value: 3309 * number of bytes printed to buffer 3310 **/ 3311static ssize_t ipr_write_dump(struct kobject *kobj, char *buf, 3312 loff_t off, size_t count) 3313{ 3314 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 3315 struct Scsi_Host *shost = class_to_shost(cdev); 3316 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3317 int rc; 3318 3319 if (!capable(CAP_SYS_ADMIN)) 3320 return -EACCES; 3321 3322 if (buf[0] == '1') 3323 rc = ipr_alloc_dump(ioa_cfg); 3324 else if (buf[0] == '0') 3325 rc = ipr_free_dump(ioa_cfg); 3326 else 3327 return -EINVAL; 3328 3329 if (rc) 3330 return rc; 3331 else 3332 return count; 3333} 3334 3335static struct bin_attribute ipr_dump_attr = { 3336 .attr = { 3337 .name = "dump", 3338 .mode = S_IRUSR | S_IWUSR, 3339 }, 3340 .size = 0, 3341 .read = ipr_read_dump, 3342 .write = ipr_write_dump 3343}; 3344#else 3345static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3346#endif 3347 3348/** 3349 * ipr_change_queue_depth - Change the device's queue depth 3350 * @sdev: scsi device struct 3351 * @qdepth: depth to set 3352 * 3353 * Return value: 3354 * actual depth set 3355 **/ 3356static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) 3357{ 3358 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3359 struct ipr_resource_entry *res; 3360 unsigned long lock_flags = 0; 3361 3362 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3363 res = (struct ipr_resource_entry *)sdev->hostdata; 3364 3365 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 3366 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 3367 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3368 3369 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 3370 return sdev->queue_depth; 3371} 3372 3373/** 3374 * ipr_change_queue_type - Change the device's queue type 3375 * @dsev: scsi device struct 3376 * @tag_type: type of tags to use 3377 * 3378 * Return value: 3379 * actual queue type set 3380 **/ 3381static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 3382{ 3383 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3384 struct ipr_resource_entry *res; 3385 unsigned long lock_flags = 0; 3386 3387 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3388 res = (struct ipr_resource_entry *)sdev->hostdata; 3389 3390 if (res) { 3391 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 3392 /* 3393 * We don't bother quiescing the device here since the 3394 * adapter firmware does it for us. 3395 */ 3396 scsi_set_tag_type(sdev, tag_type); 3397 3398 if (tag_type) 3399 scsi_activate_tcq(sdev, sdev->queue_depth); 3400 else 3401 scsi_deactivate_tcq(sdev, sdev->queue_depth); 3402 } else 3403 tag_type = 0; 3404 } else 3405 tag_type = 0; 3406 3407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3408 return tag_type; 3409} 3410 3411/** 3412 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 3413 * @dev: device struct 3414 * @buf: buffer 3415 * 3416 * Return value: 3417 * number of bytes printed to buffer 3418 **/ 3419static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 3420{ 3421 struct scsi_device *sdev = to_scsi_device(dev); 3422 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3423 struct ipr_resource_entry *res; 3424 unsigned long lock_flags = 0; 3425 ssize_t len = -ENXIO; 3426 3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3428 res = (struct ipr_resource_entry *)sdev->hostdata; 3429 if (res) 3430 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); 3431 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3432 return len; 3433} 3434 3435static struct device_attribute ipr_adapter_handle_attr = { 3436 .attr = { 3437 .name = "adapter_handle", 3438 .mode = S_IRUSR, 3439 }, 3440 .show = ipr_show_adapter_handle 3441}; 3442 3443static struct device_attribute *ipr_dev_attrs[] = { 3444 &ipr_adapter_handle_attr, 3445 NULL, 3446}; 3447 3448/** 3449 * ipr_biosparam - Return the HSC mapping 3450 * @sdev: scsi device struct 3451 * @block_device: block device pointer 3452 * @capacity: capacity of the device 3453 * @parm: Array containing returned HSC values. 3454 * 3455 * This function generates the HSC parms that fdisk uses. 3456 * We want to make sure we return something that places partitions 3457 * on 4k boundaries for best performance with the IOA. 3458 * 3459 * Return value: 3460 * 0 on success 3461 **/ 3462static int ipr_biosparam(struct scsi_device *sdev, 3463 struct block_device *block_device, 3464 sector_t capacity, int *parm) 3465{ 3466 int heads, sectors; 3467 sector_t cylinders; 3468 3469 heads = 128; 3470 sectors = 32; 3471 3472 cylinders = capacity; 3473 sector_div(cylinders, (128 * 32)); 3474 3475 /* return result */ 3476 parm[0] = heads; 3477 parm[1] = sectors; 3478 parm[2] = cylinders; 3479 3480 return 0; 3481} 3482 3483/** 3484 * ipr_find_starget - Find target based on bus/target. 3485 * @starget: scsi target struct 3486 * 3487 * Return value: 3488 * resource entry pointer if found / NULL if not found 3489 **/ 3490static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 3491{ 3492 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3493 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3494 struct ipr_resource_entry *res; 3495 3496 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3497 if ((res->cfgte.res_addr.bus == starget->channel) && 3498 (res->cfgte.res_addr.target == starget->id) && 3499 (res->cfgte.res_addr.lun == 0)) { 3500 return res; 3501 } 3502 } 3503 3504 return NULL; 3505} 3506 3507static struct ata_port_info sata_port_info; 3508 3509/** 3510 * ipr_target_alloc - Prepare for commands to a SCSI target 3511 * @starget: scsi target struct 3512 * 3513 * If the device is a SATA device, this function allocates an 3514 * ATA port with libata, else it does nothing. 3515 * 3516 * Return value: 3517 * 0 on success / non-0 on failure 3518 **/ 3519static int ipr_target_alloc(struct scsi_target *starget) 3520{ 3521 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3522 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3523 struct ipr_sata_port *sata_port; 3524 struct ata_port *ap; 3525 struct ipr_resource_entry *res; 3526 unsigned long lock_flags; 3527 3528 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3529 res = ipr_find_starget(starget); 3530 starget->hostdata = NULL; 3531 3532 if (res && ipr_is_gata(res)) { 3533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3534 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 3535 if (!sata_port) 3536 return -ENOMEM; 3537 3538 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 3539 if (ap) { 3540 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3541 sata_port->ioa_cfg = ioa_cfg; 3542 sata_port->ap = ap; 3543 sata_port->res = res; 3544 3545 res->sata_port = sata_port; 3546 ap->private_data = sata_port; 3547 starget->hostdata = sata_port; 3548 } else { 3549 kfree(sata_port); 3550 return -ENOMEM; 3551 } 3552 } 3553 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3554 3555 return 0; 3556} 3557 3558/** 3559 * ipr_target_destroy - Destroy a SCSI target 3560 * @starget: scsi target struct 3561 * 3562 * If the device was a SATA device, this function frees the libata 3563 * ATA port, else it does nothing. 3564 * 3565 **/ 3566static void ipr_target_destroy(struct scsi_target *starget) 3567{ 3568 struct ipr_sata_port *sata_port = starget->hostdata; 3569 3570 if (sata_port) { 3571 starget->hostdata = NULL; 3572 ata_sas_port_destroy(sata_port->ap); 3573 kfree(sata_port); 3574 } 3575} 3576 3577/** 3578 * ipr_find_sdev - Find device based on bus/target/lun. 3579 * @sdev: scsi device struct 3580 * 3581 * Return value: 3582 * resource entry pointer if found / NULL if not found 3583 **/ 3584static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 3585{ 3586 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3587 struct ipr_resource_entry *res; 3588 3589 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3590 if ((res->cfgte.res_addr.bus == sdev->channel) && 3591 (res->cfgte.res_addr.target == sdev->id) && 3592 (res->cfgte.res_addr.lun == sdev->lun)) 3593 return res; 3594 } 3595 3596 return NULL; 3597} 3598 3599/** 3600 * ipr_slave_destroy - Unconfigure a SCSI device 3601 * @sdev: scsi device struct 3602 * 3603 * Return value: 3604 * nothing 3605 **/ 3606static void ipr_slave_destroy(struct scsi_device *sdev) 3607{ 3608 struct ipr_resource_entry *res; 3609 struct ipr_ioa_cfg *ioa_cfg; 3610 unsigned long lock_flags = 0; 3611 3612 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3613 3614 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3615 res = (struct ipr_resource_entry *) sdev->hostdata; 3616 if (res) { 3617 if (res->sata_port) 3618 ata_port_disable(res->sata_port->ap); 3619 sdev->hostdata = NULL; 3620 res->sdev = NULL; 3621 res->sata_port = NULL; 3622 } 3623 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3624} 3625 3626/** 3627 * ipr_slave_configure - Configure a SCSI device 3628 * @sdev: scsi device struct 3629 * 3630 * This function configures the specified scsi device. 3631 * 3632 * Return value: 3633 * 0 on success 3634 **/ 3635static int ipr_slave_configure(struct scsi_device *sdev) 3636{ 3637 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3638 struct ipr_resource_entry *res; 3639 unsigned long lock_flags = 0; 3640 3641 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3642 res = sdev->hostdata; 3643 if (res) { 3644 if (ipr_is_af_dasd_device(res)) 3645 sdev->type = TYPE_RAID; 3646 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 3647 sdev->scsi_level = 4; 3648 sdev->no_uld_attach = 1; 3649 } 3650 if (ipr_is_vset_device(res)) { 3651 sdev->timeout = IPR_VSET_RW_TIMEOUT; 3652 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 3653 } 3654 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 3655 sdev->allow_restart = 1; 3656 if (ipr_is_gata(res) && res->sata_port) { 3657 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 3658 ata_sas_slave_configure(sdev, res->sata_port->ap); 3659 } else { 3660 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 3661 } 3662 } 3663 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3664 return 0; 3665} 3666 3667/** 3668 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 3669 * @sdev: scsi device struct 3670 * 3671 * This function initializes an ATA port so that future commands 3672 * sent through queuecommand will work. 3673 * 3674 * Return value: 3675 * 0 on success 3676 **/ 3677static int ipr_ata_slave_alloc(struct scsi_device *sdev) 3678{ 3679 struct ipr_sata_port *sata_port = NULL; 3680 int rc = -ENXIO; 3681 3682 ENTER; 3683 if (sdev->sdev_target) 3684 sata_port = sdev->sdev_target->hostdata; 3685 if (sata_port) 3686 rc = ata_sas_port_init(sata_port->ap); 3687 if (rc) 3688 ipr_slave_destroy(sdev); 3689 3690 LEAVE; 3691 return rc; 3692} 3693 3694/** 3695 * ipr_slave_alloc - Prepare for commands to a device. 3696 * @sdev: scsi device struct 3697 * 3698 * This function saves a pointer to the resource entry 3699 * in the scsi device struct if the device exists. We 3700 * can then use this pointer in ipr_queuecommand when 3701 * handling new commands. 3702 * 3703 * Return value: 3704 * 0 on success / -ENXIO if device does not exist 3705 **/ 3706static int ipr_slave_alloc(struct scsi_device *sdev) 3707{ 3708 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3709 struct ipr_resource_entry *res; 3710 unsigned long lock_flags; 3711 int rc = -ENXIO; 3712 3713 sdev->hostdata = NULL; 3714 3715 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3716 3717 res = ipr_find_sdev(sdev); 3718 if (res) { 3719 res->sdev = sdev; 3720 res->add_to_ml = 0; 3721 res->in_erp = 0; 3722 sdev->hostdata = res; 3723 if (!ipr_is_naca_model(res)) 3724 res->needs_sync_complete = 1; 3725 rc = 0; 3726 if (ipr_is_gata(res)) { 3727 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3728 return ipr_ata_slave_alloc(sdev); 3729 } 3730 } 3731 3732 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3733 3734 return rc; 3735} 3736 3737/** 3738 * ipr_eh_host_reset - Reset the host adapter 3739 * @scsi_cmd: scsi command struct 3740 * 3741 * Return value: 3742 * SUCCESS / FAILED 3743 **/ 3744static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 3745{ 3746 struct ipr_ioa_cfg *ioa_cfg; 3747 int rc; 3748 3749 ENTER; 3750 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3751 3752 dev_err(&ioa_cfg->pdev->dev, 3753 "Adapter being reset as a result of error recovery.\n"); 3754 3755 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 3756 ioa_cfg->sdt_state = GET_DUMP; 3757 3758 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 3759 3760 LEAVE; 3761 return rc; 3762} 3763 3764static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 3765{ 3766 int rc; 3767 3768 spin_lock_irq(cmd->device->host->host_lock); 3769 rc = __ipr_eh_host_reset(cmd); 3770 spin_unlock_irq(cmd->device->host->host_lock); 3771 3772 return rc; 3773} 3774 3775/** 3776 * ipr_device_reset - Reset the device 3777 * @ioa_cfg: ioa config struct 3778 * @res: resource entry struct 3779 * 3780 * This function issues a device reset to the affected device. 3781 * If the device is a SCSI device, a LUN reset will be sent 3782 * to the device first. If that does not work, a target reset 3783 * will be sent. If the device is a SATA device, a PHY reset will 3784 * be sent. 3785 * 3786 * Return value: 3787 * 0 on success / non-zero on failure 3788 **/ 3789static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 3790 struct ipr_resource_entry *res) 3791{ 3792 struct ipr_cmnd *ipr_cmd; 3793 struct ipr_ioarcb *ioarcb; 3794 struct ipr_cmd_pkt *cmd_pkt; 3795 struct ipr_ioarcb_ata_regs *regs; 3796 u32 ioasc; 3797 3798 ENTER; 3799 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 3800 ioarcb = &ipr_cmd->ioarcb; 3801 cmd_pkt = &ioarcb->cmd_pkt; 3802 regs = &ioarcb->add_data.u.regs; 3803 3804 ioarcb->res_handle = res->cfgte.res_handle; 3805 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 3806 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 3807 if (ipr_is_gata(res)) { 3808 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 3809 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); 3810 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 3811 } 3812 3813 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 3814 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 3815 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 3816 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) 3817 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 3818 sizeof(struct ipr_ioasa_gata)); 3819 3820 LEAVE; 3821 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 3822} 3823 3824/** 3825 * ipr_sata_reset - Reset the SATA port 3826 * @ap: SATA port to reset 3827 * @classes: class of the attached device 3828 * 3829 * This function issues a SATA phy reset to the affected ATA port. 3830 * 3831 * Return value: 3832 * 0 on success / non-zero on failure 3833 **/ 3834static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes, 3835 unsigned long deadline) 3836{ 3837 struct ipr_sata_port *sata_port = ap->private_data; 3838 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 3839 struct ipr_resource_entry *res; 3840 unsigned long lock_flags = 0; 3841 int rc = -ENXIO; 3842 3843 ENTER; 3844 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3845 while(ioa_cfg->in_reset_reload) { 3846 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3847 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3848 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3849 } 3850 3851 res = sata_port->res; 3852 if (res) { 3853 rc = ipr_device_reset(ioa_cfg, res); 3854 switch(res->cfgte.proto) { 3855 case IPR_PROTO_SATA: 3856 case IPR_PROTO_SAS_STP: 3857 *classes = ATA_DEV_ATA; 3858 break; 3859 case IPR_PROTO_SATA_ATAPI: 3860 case IPR_PROTO_SAS_STP_ATAPI: 3861 *classes = ATA_DEV_ATAPI; 3862 break; 3863 default: 3864 *classes = ATA_DEV_UNKNOWN; 3865 break; 3866 }; 3867 } 3868 3869 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3870 LEAVE; 3871 return rc; 3872} 3873 3874/** 3875 * ipr_eh_dev_reset - Reset the device 3876 * @scsi_cmd: scsi command struct 3877 * 3878 * This function issues a device reset to the affected device. 3879 * A LUN reset will be sent to the device first. If that does 3880 * not work, a target reset will be sent. 3881 * 3882 * Return value: 3883 * SUCCESS / FAILED 3884 **/ 3885static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 3886{ 3887 struct ipr_cmnd *ipr_cmd; 3888 struct ipr_ioa_cfg *ioa_cfg; 3889 struct ipr_resource_entry *res; 3890 struct ata_port *ap; 3891 int rc = 0; 3892 3893 ENTER; 3894 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3895 res = scsi_cmd->device->hostdata; 3896 3897 if (!res) 3898 return FAILED; 3899 3900 /* 3901 * If we are currently going through reset/reload, return failed. This will force the 3902 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 3903 * reset to complete 3904 */ 3905 if (ioa_cfg->in_reset_reload) 3906 return FAILED; 3907 if (ioa_cfg->ioa_is_dead) 3908 return FAILED; 3909 3910 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 3911 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { 3912 if (ipr_cmd->scsi_cmd) 3913 ipr_cmd->done = ipr_scsi_eh_done; 3914 if (ipr_cmd->qc) 3915 ipr_cmd->done = ipr_sata_eh_done; 3916 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 3917 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 3918 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 3919 } 3920 } 3921 } 3922 3923 res->resetting_device = 1; 3924 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 3925 3926 if (ipr_is_gata(res) && res->sata_port) { 3927 ap = res->sata_port->ap; 3928 spin_unlock_irq(scsi_cmd->device->host->host_lock); 3929 ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL); 3930 spin_lock_irq(scsi_cmd->device->host->host_lock); 3931 } else 3932 rc = ipr_device_reset(ioa_cfg, res); 3933 res->resetting_device = 0; 3934 3935 LEAVE; 3936 return (rc ? FAILED : SUCCESS); 3937} 3938 3939static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 3940{ 3941 int rc; 3942 3943 spin_lock_irq(cmd->device->host->host_lock); 3944 rc = __ipr_eh_dev_reset(cmd); 3945 spin_unlock_irq(cmd->device->host->host_lock); 3946 3947 return rc; 3948} 3949 3950/** 3951 * ipr_bus_reset_done - Op done function for bus reset. 3952 * @ipr_cmd: ipr command struct 3953 * 3954 * This function is the op done function for a bus reset 3955 * 3956 * Return value: 3957 * none 3958 **/ 3959static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 3960{ 3961 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 3962 struct ipr_resource_entry *res; 3963 3964 ENTER; 3965 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3966 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, 3967 sizeof(res->cfgte.res_handle))) { 3968 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); 3969 break; 3970 } 3971 } 3972 3973 /* 3974 * If abort has not completed, indicate the reset has, else call the 3975 * abort's done function to wake the sleeping eh thread 3976 */ 3977 if (ipr_cmd->sibling->sibling) 3978 ipr_cmd->sibling->sibling = NULL; 3979 else 3980 ipr_cmd->sibling->done(ipr_cmd->sibling); 3981 3982 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 3983 LEAVE; 3984} 3985 3986/** 3987 * ipr_abort_timeout - An abort task has timed out 3988 * @ipr_cmd: ipr command struct 3989 * 3990 * This function handles when an abort task times out. If this 3991 * happens we issue a bus reset since we have resources tied 3992 * up that must be freed before returning to the midlayer. 3993 * 3994 * Return value: 3995 * none 3996 **/ 3997static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 3998{ 3999 struct ipr_cmnd *reset_cmd; 4000 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4001 struct ipr_cmd_pkt *cmd_pkt; 4002 unsigned long lock_flags = 0; 4003 4004 ENTER; 4005 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4006 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4007 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4008 return; 4009 } 4010 4011 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4012 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4013 ipr_cmd->sibling = reset_cmd; 4014 reset_cmd->sibling = ipr_cmd; 4015 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4016 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4017 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4018 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4019 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4020 4021 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4022 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4023 LEAVE; 4024} 4025 4026/** 4027 * ipr_cancel_op - Cancel specified op 4028 * @scsi_cmd: scsi command struct 4029 * 4030 * This function cancels specified op. 4031 * 4032 * Return value: 4033 * SUCCESS / FAILED 4034 **/ 4035static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4036{ 4037 struct ipr_cmnd *ipr_cmd; 4038 struct ipr_ioa_cfg *ioa_cfg; 4039 struct ipr_resource_entry *res; 4040 struct ipr_cmd_pkt *cmd_pkt; 4041 u32 ioasc; 4042 int op_found = 0; 4043 4044 ENTER; 4045 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4046 res = scsi_cmd->device->hostdata; 4047 4048 /* If we are currently going through reset/reload, return failed. 4049 * This will force the mid-layer to call ipr_eh_host_reset, 4050 * which will then go to sleep and wait for the reset to complete 4051 */ 4052 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4053 return FAILED; 4054 if (!res || !ipr_is_gscsi(res)) 4055 return FAILED; 4056 4057 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4058 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4059 ipr_cmd->done = ipr_scsi_eh_done; 4060 op_found = 1; 4061 break; 4062 } 4063 } 4064 4065 if (!op_found) 4066 return SUCCESS; 4067 4068 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4069 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 4070 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4071 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4072 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4073 ipr_cmd->u.sdev = scsi_cmd->device; 4074 4075 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4076 scsi_cmd->cmnd[0]); 4077 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4078 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4079 4080 /* 4081 * If the abort task timed out and we sent a bus reset, we will get 4082 * one the following responses to the abort 4083 */ 4084 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4085 ioasc = 0; 4086 ipr_trace; 4087 } 4088 4089 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4090 if (!ipr_is_naca_model(res)) 4091 res->needs_sync_complete = 1; 4092 4093 LEAVE; 4094 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4095} 4096 4097/** 4098 * ipr_eh_abort - Abort a single op 4099 * @scsi_cmd: scsi command struct 4100 * 4101 * Return value: 4102 * SUCCESS / FAILED 4103 **/ 4104static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4105{ 4106 unsigned long flags; 4107 int rc; 4108 4109 ENTER; 4110 4111 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4112 rc = ipr_cancel_op(scsi_cmd); 4113 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4114 4115 LEAVE; 4116 return rc; 4117} 4118 4119/** 4120 * ipr_handle_other_interrupt - Handle "other" interrupts 4121 * @ioa_cfg: ioa config struct 4122 * @int_reg: interrupt register 4123 * 4124 * Return value: 4125 * IRQ_NONE / IRQ_HANDLED 4126 **/ 4127static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4128 volatile u32 int_reg) 4129{ 4130 irqreturn_t rc = IRQ_HANDLED; 4131 4132 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4133 /* Mask the interrupt */ 4134 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4135 4136 /* Clear the interrupt */ 4137 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4138 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4139 4140 list_del(&ioa_cfg->reset_cmd->queue); 4141 del_timer(&ioa_cfg->reset_cmd->timer); 4142 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4143 } else { 4144 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4145 ioa_cfg->ioa_unit_checked = 1; 4146 else 4147 dev_err(&ioa_cfg->pdev->dev, 4148 "Permanent IOA failure. 0x%08X\n", int_reg); 4149 4150 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4151 ioa_cfg->sdt_state = GET_DUMP; 4152 4153 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4154 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4155 } 4156 4157 return rc; 4158} 4159 4160/** 4161 * ipr_isr - Interrupt service routine 4162 * @irq: irq number 4163 * @devp: pointer to ioa config struct 4164 * 4165 * Return value: 4166 * IRQ_NONE / IRQ_HANDLED 4167 **/ 4168static irqreturn_t ipr_isr(int irq, void *devp) 4169{ 4170 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4171 unsigned long lock_flags = 0; 4172 volatile u32 int_reg, int_mask_reg; 4173 u32 ioasc; 4174 u16 cmd_index; 4175 struct ipr_cmnd *ipr_cmd; 4176 irqreturn_t rc = IRQ_NONE; 4177 4178 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4179 4180 /* If interrupts are disabled, ignore the interrupt */ 4181 if (!ioa_cfg->allow_interrupts) { 4182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4183 return IRQ_NONE; 4184 } 4185 4186 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4187 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4188 4189 /* If an interrupt on the adapter did not occur, ignore it */ 4190 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4191 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4192 return IRQ_NONE; 4193 } 4194 4195 while (1) { 4196 ipr_cmd = NULL; 4197 4198 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4199 ioa_cfg->toggle_bit) { 4200 4201 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4202 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4203 4204 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4205 ioa_cfg->errors_logged++; 4206 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); 4207 4208 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4209 ioa_cfg->sdt_state = GET_DUMP; 4210 4211 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4212 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4213 return IRQ_HANDLED; 4214 } 4215 4216 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4217 4218 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4219 4220 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4221 4222 list_del(&ipr_cmd->queue); 4223 del_timer(&ipr_cmd->timer); 4224 ipr_cmd->done(ipr_cmd); 4225 4226 rc = IRQ_HANDLED; 4227 4228 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4229 ioa_cfg->hrrq_curr++; 4230 } else { 4231 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4232 ioa_cfg->toggle_bit ^= 1u; 4233 } 4234 } 4235 4236 if (ipr_cmd != NULL) { 4237 /* Clear the PCI interrupt */ 4238 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); 4239 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4240 } else 4241 break; 4242 } 4243 4244 if (unlikely(rc == IRQ_NONE)) 4245 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4246 4247 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4248 return rc; 4249} 4250 4251/** 4252 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 4253 * @ioa_cfg: ioa config struct 4254 * @ipr_cmd: ipr command struct 4255 * 4256 * Return value: 4257 * 0 on success / -1 on failure 4258 **/ 4259static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 4260 struct ipr_cmnd *ipr_cmd) 4261{ 4262 int i, nseg; 4263 struct scatterlist *sg; 4264 u32 length; 4265 u32 ioadl_flags = 0; 4266 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4267 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4268 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 4269 4270 length = scsi_bufflen(scsi_cmd); 4271 if (!length) 4272 return 0; 4273 4274 nseg = scsi_dma_map(scsi_cmd); 4275 if (nseg < 0) { 4276 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 4277 return -1; 4278 } 4279 4280 ipr_cmd->dma_use_sg = nseg; 4281 4282 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 4283 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 4284 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 4285 ioarcb->write_data_transfer_length = cpu_to_be32(length); 4286 ioarcb->write_ioadl_len = 4287 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4288 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 4289 ioadl_flags = IPR_IOADL_FLAGS_READ; 4290 ioarcb->read_data_transfer_length = cpu_to_be32(length); 4291 ioarcb->read_ioadl_len = 4292 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4293 } 4294 4295 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) { 4296 ioadl = ioarcb->add_data.u.ioadl; 4297 ioarcb->write_ioadl_addr = 4298 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + 4299 offsetof(struct ipr_ioarcb, add_data)); 4300 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4301 } 4302 4303 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 4304 ioadl[i].flags_and_data_len = 4305 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 4306 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 4307 } 4308 4309 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 4310 return 0; 4311} 4312 4313/** 4314 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 4315 * @scsi_cmd: scsi command struct 4316 * 4317 * Return value: 4318 * task attributes 4319 **/ 4320static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 4321{ 4322 u8 tag[2]; 4323 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 4324 4325 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 4326 switch (tag[0]) { 4327 case MSG_SIMPLE_TAG: 4328 rc = IPR_FLAGS_LO_SIMPLE_TASK; 4329 break; 4330 case MSG_HEAD_TAG: 4331 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 4332 break; 4333 case MSG_ORDERED_TAG: 4334 rc = IPR_FLAGS_LO_ORDERED_TASK; 4335 break; 4336 }; 4337 } 4338 4339 return rc; 4340} 4341 4342/** 4343 * ipr_erp_done - Process completion of ERP for a device 4344 * @ipr_cmd: ipr command struct 4345 * 4346 * This function copies the sense buffer into the scsi_cmd 4347 * struct and pushes the scsi_done function. 4348 * 4349 * Return value: 4350 * nothing 4351 **/ 4352static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 4353{ 4354 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4355 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4356 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4357 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4358 4359 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4360 scsi_cmd->result |= (DID_ERROR << 16); 4361 scmd_printk(KERN_ERR, scsi_cmd, 4362 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 4363 } else { 4364 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 4365 SCSI_SENSE_BUFFERSIZE); 4366 } 4367 4368 if (res) { 4369 if (!ipr_is_naca_model(res)) 4370 res->needs_sync_complete = 1; 4371 res->in_erp = 0; 4372 } 4373 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4374 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4375 scsi_cmd->scsi_done(scsi_cmd); 4376} 4377 4378/** 4379 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 4380 * @ipr_cmd: ipr command struct 4381 * 4382 * Return value: 4383 * none 4384 **/ 4385static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 4386{ 4387 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4388 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4389 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); 4390 4391 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 4392 ioarcb->write_data_transfer_length = 0; 4393 ioarcb->read_data_transfer_length = 0; 4394 ioarcb->write_ioadl_len = 0; 4395 ioarcb->read_ioadl_len = 0; 4396 ioasa->ioasc = 0; 4397 ioasa->residual_data_len = 0; 4398 ioarcb->write_ioadl_addr = 4399 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 4400 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4401} 4402 4403/** 4404 * ipr_erp_request_sense - Send request sense to a device 4405 * @ipr_cmd: ipr command struct 4406 * 4407 * This function sends a request sense to a device as a result 4408 * of a check condition. 4409 * 4410 * Return value: 4411 * nothing 4412 **/ 4413static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 4414{ 4415 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4416 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4417 4418 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4419 ipr_erp_done(ipr_cmd); 4420 return; 4421 } 4422 4423 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4424 4425 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 4426 cmd_pkt->cdb[0] = REQUEST_SENSE; 4427 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 4428 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 4429 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4430 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 4431 4432 ipr_cmd->ioadl[0].flags_and_data_len = 4433 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); 4434 ipr_cmd->ioadl[0].address = 4435 cpu_to_be32(ipr_cmd->sense_buffer_dma); 4436 4437 ipr_cmd->ioarcb.read_ioadl_len = 4438 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 4439 ipr_cmd->ioarcb.read_data_transfer_length = 4440 cpu_to_be32(SCSI_SENSE_BUFFERSIZE); 4441 4442 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 4443 IPR_REQUEST_SENSE_TIMEOUT * 2); 4444} 4445 4446/** 4447 * ipr_erp_cancel_all - Send cancel all to a device 4448 * @ipr_cmd: ipr command struct 4449 * 4450 * This function sends a cancel all to a device to clear the 4451 * queue. If we are running TCQ on the device, QERR is set to 1, 4452 * which means all outstanding ops have been dropped on the floor. 4453 * Cancel all will return them to us. 4454 * 4455 * Return value: 4456 * nothing 4457 **/ 4458static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 4459{ 4460 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4461 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4462 struct ipr_cmd_pkt *cmd_pkt; 4463 4464 res->in_erp = 1; 4465 4466 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4467 4468 if (!scsi_get_tag_type(scsi_cmd->device)) { 4469 ipr_erp_request_sense(ipr_cmd); 4470 return; 4471 } 4472 4473 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4474 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4475 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4476 4477 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 4478 IPR_CANCEL_ALL_TIMEOUT); 4479} 4480 4481/** 4482 * ipr_dump_ioasa - Dump contents of IOASA 4483 * @ioa_cfg: ioa config struct 4484 * @ipr_cmd: ipr command struct 4485 * @res: resource entry struct 4486 * 4487 * This function is invoked by the interrupt handler when ops 4488 * fail. It will log the IOASA if appropriate. Only called 4489 * for GPDD ops. 4490 * 4491 * Return value: 4492 * none 4493 **/ 4494static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 4495 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 4496{ 4497 int i; 4498 u16 data_len; 4499 u32 ioasc, fd_ioasc; 4500 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4501 __be32 *ioasa_data = (__be32 *)ioasa; 4502 int error_index; 4503 4504 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; 4505 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; 4506 4507 if (0 == ioasc) 4508 return; 4509 4510 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 4511 return; 4512 4513 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 4514 error_index = ipr_get_error(fd_ioasc); 4515 else 4516 error_index = ipr_get_error(ioasc); 4517 4518 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 4519 /* Don't log an error if the IOA already logged one */ 4520 if (ioasa->ilid != 0) 4521 return; 4522 4523 if (!ipr_is_gscsi(res)) 4524 return; 4525 4526 if (ipr_error_table[error_index].log_ioasa == 0) 4527 return; 4528 } 4529 4530 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 4531 4532 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) 4533 data_len = sizeof(struct ipr_ioasa); 4534 else 4535 data_len = be16_to_cpu(ioasa->ret_stat_len); 4536 4537 ipr_err("IOASA Dump:\n"); 4538 4539 for (i = 0; i < data_len / 4; i += 4) { 4540 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 4541 be32_to_cpu(ioasa_data[i]), 4542 be32_to_cpu(ioasa_data[i+1]), 4543 be32_to_cpu(ioasa_data[i+2]), 4544 be32_to_cpu(ioasa_data[i+3])); 4545 } 4546} 4547 4548/** 4549 * ipr_gen_sense - Generate SCSI sense data from an IOASA 4550 * @ioasa: IOASA 4551 * @sense_buf: sense data buffer 4552 * 4553 * Return value: 4554 * none 4555 **/ 4556static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 4557{ 4558 u32 failing_lba; 4559 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 4560 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 4561 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4562 u32 ioasc = be32_to_cpu(ioasa->ioasc); 4563 4564 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 4565 4566 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 4567 return; 4568 4569 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 4570 4571 if (ipr_is_vset_device(res) && 4572 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 4573 ioasa->u.vset.failing_lba_hi != 0) { 4574 sense_buf[0] = 0x72; 4575 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 4576 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 4577 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 4578 4579 sense_buf[7] = 12; 4580 sense_buf[8] = 0; 4581 sense_buf[9] = 0x0A; 4582 sense_buf[10] = 0x80; 4583 4584 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 4585 4586 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 4587 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 4588 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 4589 sense_buf[15] = failing_lba & 0x000000ff; 4590 4591 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4592 4593 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 4594 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 4595 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 4596 sense_buf[19] = failing_lba & 0x000000ff; 4597 } else { 4598 sense_buf[0] = 0x70; 4599 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 4600 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 4601 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 4602 4603 /* Illegal request */ 4604 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 4605 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 4606 sense_buf[7] = 10; /* additional length */ 4607 4608 /* IOARCB was in error */ 4609 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 4610 sense_buf[15] = 0xC0; 4611 else /* Parameter data was invalid */ 4612 sense_buf[15] = 0x80; 4613 4614 sense_buf[16] = 4615 ((IPR_FIELD_POINTER_MASK & 4616 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; 4617 sense_buf[17] = 4618 (IPR_FIELD_POINTER_MASK & 4619 be32_to_cpu(ioasa->ioasc_specific)) & 0xff; 4620 } else { 4621 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 4622 if (ipr_is_vset_device(res)) 4623 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4624 else 4625 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 4626 4627 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 4628 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 4629 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 4630 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 4631 sense_buf[6] = failing_lba & 0x000000ff; 4632 } 4633 4634 sense_buf[7] = 6; /* additional length */ 4635 } 4636 } 4637} 4638 4639/** 4640 * ipr_get_autosense - Copy autosense data to sense buffer 4641 * @ipr_cmd: ipr command struct 4642 * 4643 * This function copies the autosense buffer to the buffer 4644 * in the scsi_cmd, if there is autosense available. 4645 * 4646 * Return value: 4647 * 1 if autosense was available / 0 if not 4648 **/ 4649static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 4650{ 4651 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4652 4653 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 4654 return 0; 4655 4656 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 4657 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 4658 SCSI_SENSE_BUFFERSIZE)); 4659 return 1; 4660} 4661 4662/** 4663 * ipr_erp_start - Process an error response for a SCSI op 4664 * @ioa_cfg: ioa config struct 4665 * @ipr_cmd: ipr command struct 4666 * 4667 * This function determines whether or not to initiate ERP 4668 * on the affected device. 4669 * 4670 * Return value: 4671 * nothing 4672 **/ 4673static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 4674 struct ipr_cmnd *ipr_cmd) 4675{ 4676 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4677 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4678 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4679 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 4680 4681 if (!res) { 4682 ipr_scsi_eh_done(ipr_cmd); 4683 return; 4684 } 4685 4686 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 4687 ipr_gen_sense(ipr_cmd); 4688 4689 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 4690 4691 switch (masked_ioasc) { 4692 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 4693 if (ipr_is_naca_model(res)) 4694 scsi_cmd->result |= (DID_ABORT << 16); 4695 else 4696 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4697 break; 4698 case IPR_IOASC_IR_RESOURCE_HANDLE: 4699 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 4700 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4701 break; 4702 case IPR_IOASC_HW_SEL_TIMEOUT: 4703 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4704 if (!ipr_is_naca_model(res)) 4705 res->needs_sync_complete = 1; 4706 break; 4707 case IPR_IOASC_SYNC_REQUIRED: 4708 if (!res->in_erp) 4709 res->needs_sync_complete = 1; 4710 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4711 break; 4712 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 4713 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 4714 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 4715 break; 4716 case IPR_IOASC_BUS_WAS_RESET: 4717 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 4718 /* 4719 * Report the bus reset and ask for a retry. The device 4720 * will give CC/UA the next command. 4721 */ 4722 if (!res->resetting_device) 4723 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 4724 scsi_cmd->result |= (DID_ERROR << 16); 4725 if (!ipr_is_naca_model(res)) 4726 res->needs_sync_complete = 1; 4727 break; 4728 case IPR_IOASC_HW_DEV_BUS_STATUS: 4729 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 4730 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 4731 if (!ipr_get_autosense(ipr_cmd)) { 4732 if (!ipr_is_naca_model(res)) { 4733 ipr_erp_cancel_all(ipr_cmd); 4734 return; 4735 } 4736 } 4737 } 4738 if (!ipr_is_naca_model(res)) 4739 res->needs_sync_complete = 1; 4740 break; 4741 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 4742 break; 4743 default: 4744 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 4745 scsi_cmd->result |= (DID_ERROR << 16); 4746 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 4747 res->needs_sync_complete = 1; 4748 break; 4749 } 4750 4751 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4752 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4753 scsi_cmd->scsi_done(scsi_cmd); 4754} 4755 4756/** 4757 * ipr_scsi_done - mid-layer done function 4758 * @ipr_cmd: ipr command struct 4759 * 4760 * This function is invoked by the interrupt handler for 4761 * ops generated by the SCSI mid-layer 4762 * 4763 * Return value: 4764 * none 4765 **/ 4766static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 4767{ 4768 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4769 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4770 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4771 4772 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len)); 4773 4774 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 4775 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4776 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4777 scsi_cmd->scsi_done(scsi_cmd); 4778 } else 4779 ipr_erp_start(ioa_cfg, ipr_cmd); 4780} 4781 4782/** 4783 * ipr_queuecommand - Queue a mid-layer request 4784 * @scsi_cmd: scsi command struct 4785 * @done: done function 4786 * 4787 * This function queues a request generated by the mid-layer. 4788 * 4789 * Return value: 4790 * 0 on success 4791 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 4792 * SCSI_MLQUEUE_HOST_BUSY if host is busy 4793 **/ 4794static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 4795 void (*done) (struct scsi_cmnd *)) 4796{ 4797 struct ipr_ioa_cfg *ioa_cfg; 4798 struct ipr_resource_entry *res; 4799 struct ipr_ioarcb *ioarcb; 4800 struct ipr_cmnd *ipr_cmd; 4801 int rc = 0; 4802 4803 scsi_cmd->scsi_done = done; 4804 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4805 res = scsi_cmd->device->hostdata; 4806 scsi_cmd->result = (DID_OK << 16); 4807 4808 /* 4809 * We are currently blocking all devices due to a host reset 4810 * We have told the host to stop giving us new requests, but 4811 * ERP ops don't count. FIXME 4812 */ 4813 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 4814 return SCSI_MLQUEUE_HOST_BUSY; 4815 4816 /* 4817 * FIXME - Create scsi_set_host_offline interface 4818 * and the ioa_is_dead check can be removed 4819 */ 4820 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 4821 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 4822 scsi_cmd->result = (DID_NO_CONNECT << 16); 4823 scsi_cmd->scsi_done(scsi_cmd); 4824 return 0; 4825 } 4826 4827 if (ipr_is_gata(res) && res->sata_port) 4828 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 4829 4830 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4831 ioarcb = &ipr_cmd->ioarcb; 4832 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 4833 4834 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 4835 ipr_cmd->scsi_cmd = scsi_cmd; 4836 ioarcb->res_handle = res->cfgte.res_handle; 4837 ipr_cmd->done = ipr_scsi_done; 4838 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 4839 4840 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 4841 if (scsi_cmd->underflow == 0) 4842 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4843 4844 if (res->needs_sync_complete) { 4845 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 4846 res->needs_sync_complete = 0; 4847 } 4848 4849 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 4850 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 4851 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 4852 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 4853 } 4854 4855 if (scsi_cmd->cmnd[0] >= 0xC0 && 4856 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 4857 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 4858 4859 if (likely(rc == 0)) 4860 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 4861 4862 if (likely(rc == 0)) { 4863 mb(); 4864 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 4865 ioa_cfg->regs.ioarrin_reg); 4866 } else { 4867 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4868 return SCSI_MLQUEUE_HOST_BUSY; 4869 } 4870 4871 return 0; 4872} 4873 4874/** 4875 * ipr_ioctl - IOCTL handler 4876 * @sdev: scsi device struct 4877 * @cmd: IOCTL cmd 4878 * @arg: IOCTL arg 4879 * 4880 * Return value: 4881 * 0 on success / other on failure 4882 **/ 4883static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 4884{ 4885 struct ipr_resource_entry *res; 4886 4887 res = (struct ipr_resource_entry *)sdev->hostdata; 4888 if (res && ipr_is_gata(res)) 4889 return ata_scsi_ioctl(sdev, cmd, arg); 4890 4891 return -EINVAL; 4892} 4893 4894/** 4895 * ipr_info - Get information about the card/driver 4896 * @scsi_host: scsi host struct 4897 * 4898 * Return value: 4899 * pointer to buffer with description string 4900 **/ 4901static const char * ipr_ioa_info(struct Scsi_Host *host) 4902{ 4903 static char buffer[512]; 4904 struct ipr_ioa_cfg *ioa_cfg; 4905 unsigned long lock_flags = 0; 4906 4907 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 4908 4909 spin_lock_irqsave(host->host_lock, lock_flags); 4910 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 4911 spin_unlock_irqrestore(host->host_lock, lock_flags); 4912 4913 return buffer; 4914} 4915 4916static struct scsi_host_template driver_template = { 4917 .module = THIS_MODULE, 4918 .name = "IPR", 4919 .info = ipr_ioa_info, 4920 .ioctl = ipr_ioctl, 4921 .queuecommand = ipr_queuecommand, 4922 .eh_abort_handler = ipr_eh_abort, 4923 .eh_device_reset_handler = ipr_eh_dev_reset, 4924 .eh_host_reset_handler = ipr_eh_host_reset, 4925 .slave_alloc = ipr_slave_alloc, 4926 .slave_configure = ipr_slave_configure, 4927 .slave_destroy = ipr_slave_destroy, 4928 .target_alloc = ipr_target_alloc, 4929 .target_destroy = ipr_target_destroy, 4930 .change_queue_depth = ipr_change_queue_depth, 4931 .change_queue_type = ipr_change_queue_type, 4932 .bios_param = ipr_biosparam, 4933 .can_queue = IPR_MAX_COMMANDS, 4934 .this_id = -1, 4935 .sg_tablesize = IPR_MAX_SGLIST, 4936 .max_sectors = IPR_IOA_MAX_SECTORS, 4937 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 4938 .use_clustering = ENABLE_CLUSTERING, 4939 .shost_attrs = ipr_ioa_attrs, 4940 .sdev_attrs = ipr_dev_attrs, 4941 .proc_name = IPR_NAME 4942}; 4943 4944/** 4945 * ipr_ata_phy_reset - libata phy_reset handler 4946 * @ap: ata port to reset 4947 * 4948 **/ 4949static void ipr_ata_phy_reset(struct ata_port *ap) 4950{ 4951 unsigned long flags; 4952 struct ipr_sata_port *sata_port = ap->private_data; 4953 struct ipr_resource_entry *res = sata_port->res; 4954 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4955 int rc; 4956 4957 ENTER; 4958 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 4959 while(ioa_cfg->in_reset_reload) { 4960 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 4961 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4962 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 4963 } 4964 4965 if (!ioa_cfg->allow_cmds) 4966 goto out_unlock; 4967 4968 rc = ipr_device_reset(ioa_cfg, res); 4969 4970 if (rc) { 4971 ap->ops->port_disable(ap); 4972 goto out_unlock; 4973 } 4974 4975 switch(res->cfgte.proto) { 4976 case IPR_PROTO_SATA: 4977 case IPR_PROTO_SAS_STP: 4978 ap->device[0].class = ATA_DEV_ATA; 4979 break; 4980 case IPR_PROTO_SATA_ATAPI: 4981 case IPR_PROTO_SAS_STP_ATAPI: 4982 ap->device[0].class = ATA_DEV_ATAPI; 4983 break; 4984 default: 4985 ap->device[0].class = ATA_DEV_UNKNOWN; 4986 ap->ops->port_disable(ap); 4987 break; 4988 }; 4989 4990out_unlock: 4991 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 4992 LEAVE; 4993} 4994 4995/** 4996 * ipr_ata_post_internal - Cleanup after an internal command 4997 * @qc: ATA queued command 4998 * 4999 * Return value: 5000 * none 5001 **/ 5002static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5003{ 5004 struct ipr_sata_port *sata_port = qc->ap->private_data; 5005 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5006 struct ipr_cmnd *ipr_cmd; 5007 unsigned long flags; 5008 5009 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5010 while(ioa_cfg->in_reset_reload) { 5011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5012 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5013 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5014 } 5015 5016 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5017 if (ipr_cmd->qc == qc) { 5018 ipr_device_reset(ioa_cfg, sata_port->res); 5019 break; 5020 } 5021 } 5022 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5023} 5024 5025/** 5026 * ipr_tf_read - Read the current ATA taskfile for the ATA port 5027 * @ap: ATA port 5028 * @tf: destination ATA taskfile 5029 * 5030 * Return value: 5031 * none 5032 **/ 5033static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf) 5034{ 5035 struct ipr_sata_port *sata_port = ap->private_data; 5036 struct ipr_ioasa_gata *g = &sata_port->ioasa; 5037 5038 tf->feature = g->error; 5039 tf->nsect = g->nsect; 5040 tf->lbal = g->lbal; 5041 tf->lbam = g->lbam; 5042 tf->lbah = g->lbah; 5043 tf->device = g->device; 5044 tf->command = g->status; 5045 tf->hob_nsect = g->hob_nsect; 5046 tf->hob_lbal = g->hob_lbal; 5047 tf->hob_lbam = g->hob_lbam; 5048 tf->hob_lbah = g->hob_lbah; 5049 tf->ctl = g->alt_status; 5050} 5051 5052/** 5053 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5054 * @regs: destination 5055 * @tf: source ATA taskfile 5056 * 5057 * Return value: 5058 * none 5059 **/ 5060static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5061 struct ata_taskfile *tf) 5062{ 5063 regs->feature = tf->feature; 5064 regs->nsect = tf->nsect; 5065 regs->lbal = tf->lbal; 5066 regs->lbam = tf->lbam; 5067 regs->lbah = tf->lbah; 5068 regs->device = tf->device; 5069 regs->command = tf->command; 5070 regs->hob_feature = tf->hob_feature; 5071 regs->hob_nsect = tf->hob_nsect; 5072 regs->hob_lbal = tf->hob_lbal; 5073 regs->hob_lbam = tf->hob_lbam; 5074 regs->hob_lbah = tf->hob_lbah; 5075 regs->ctl = tf->ctl; 5076} 5077 5078/** 5079 * ipr_sata_done - done function for SATA commands 5080 * @ipr_cmd: ipr command struct 5081 * 5082 * This function is invoked by the interrupt handler for 5083 * ops generated by the SCSI mid-layer to SATA devices 5084 * 5085 * Return value: 5086 * none 5087 **/ 5088static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5089{ 5090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5091 struct ata_queued_cmd *qc = ipr_cmd->qc; 5092 struct ipr_sata_port *sata_port = qc->ap->private_data; 5093 struct ipr_resource_entry *res = sata_port->res; 5094 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5095 5096 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 5097 sizeof(struct ipr_ioasa_gata)); 5098 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5099 5100 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5101 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus, 5102 res->cfgte.res_addr.target); 5103 5104 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5105 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5106 else 5107 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5108 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5109 ata_qc_complete(qc); 5110} 5111 5112/** 5113 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5114 * @ipr_cmd: ipr command struct 5115 * @qc: ATA queued command 5116 * 5117 **/ 5118static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5119 struct ata_queued_cmd *qc) 5120{ 5121 u32 ioadl_flags = 0; 5122 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5123 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5124 int len = qc->nbytes + qc->pad_len; 5125 struct scatterlist *sg; 5126 5127 if (len == 0) 5128 return; 5129 5130 if (qc->dma_dir == DMA_TO_DEVICE) { 5131 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5132 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5133 ioarcb->write_data_transfer_length = cpu_to_be32(len); 5134 ioarcb->write_ioadl_len = 5135 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5136 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5137 ioadl_flags = IPR_IOADL_FLAGS_READ; 5138 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5139 ioarcb->read_ioadl_len = 5140 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5141 } 5142 5143 ata_for_each_sg(sg, qc) { 5144 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5145 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5146 if (ata_sg_is_last(sg, qc)) 5147 ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5148 else 5149 ioadl++; 5150 } 5151} 5152 5153/** 5154 * ipr_qc_issue - Issue a SATA qc to a device 5155 * @qc: queued command 5156 * 5157 * Return value: 5158 * 0 if success 5159 **/ 5160static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5161{ 5162 struct ata_port *ap = qc->ap; 5163 struct ipr_sata_port *sata_port = ap->private_data; 5164 struct ipr_resource_entry *res = sata_port->res; 5165 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5166 struct ipr_cmnd *ipr_cmd; 5167 struct ipr_ioarcb *ioarcb; 5168 struct ipr_ioarcb_ata_regs *regs; 5169 5170 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5171 return AC_ERR_SYSTEM; 5172 5173 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5174 ioarcb = &ipr_cmd->ioarcb; 5175 regs = &ioarcb->add_data.u.regs; 5176 5177 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); 5178 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); 5179 5180 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5181 ipr_cmd->qc = qc; 5182 ipr_cmd->done = ipr_sata_done; 5183 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 5184 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 5185 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5186 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5187 ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem; 5188 5189 ipr_build_ata_ioadl(ipr_cmd, qc); 5190 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5191 ipr_copy_sata_tf(regs, &qc->tf); 5192 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 5193 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 5194 5195 switch (qc->tf.protocol) { 5196 case ATA_PROT_NODATA: 5197 case ATA_PROT_PIO: 5198 break; 5199 5200 case ATA_PROT_DMA: 5201 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5202 break; 5203 5204 case ATA_PROT_ATAPI: 5205 case ATA_PROT_ATAPI_NODATA: 5206 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5207 break; 5208 5209 case ATA_PROT_ATAPI_DMA: 5210 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5211 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5212 break; 5213 5214 default: 5215 WARN_ON(1); 5216 return AC_ERR_INVALID; 5217 } 5218 5219 mb(); 5220 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), 5221 ioa_cfg->regs.ioarrin_reg); 5222 return 0; 5223} 5224 5225/** 5226 * ipr_ata_check_status - Return last ATA status 5227 * @ap: ATA port 5228 * 5229 * Return value: 5230 * ATA status 5231 **/ 5232static u8 ipr_ata_check_status(struct ata_port *ap) 5233{ 5234 struct ipr_sata_port *sata_port = ap->private_data; 5235 return sata_port->ioasa.status; 5236} 5237 5238/** 5239 * ipr_ata_check_altstatus - Return last ATA altstatus 5240 * @ap: ATA port 5241 * 5242 * Return value: 5243 * Alt ATA status 5244 **/ 5245static u8 ipr_ata_check_altstatus(struct ata_port *ap) 5246{ 5247 struct ipr_sata_port *sata_port = ap->private_data; 5248 return sata_port->ioasa.alt_status; 5249} 5250 5251static struct ata_port_operations ipr_sata_ops = { 5252 .port_disable = ata_port_disable, 5253 .check_status = ipr_ata_check_status, 5254 .check_altstatus = ipr_ata_check_altstatus, 5255 .dev_select = ata_noop_dev_select, 5256 .phy_reset = ipr_ata_phy_reset, 5257 .post_internal_cmd = ipr_ata_post_internal, 5258 .tf_read = ipr_tf_read, 5259 .qc_prep = ata_noop_qc_prep, 5260 .qc_issue = ipr_qc_issue, 5261 .port_start = ata_sas_port_start, 5262 .port_stop = ata_sas_port_stop 5263}; 5264 5265static struct ata_port_info sata_port_info = { 5266 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 5267 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 5268 .pio_mask = 0x10, /* pio4 */ 5269 .mwdma_mask = 0x07, 5270 .udma_mask = 0x7f, /* udma0-6 */ 5271 .port_ops = &ipr_sata_ops 5272}; 5273 5274#ifdef CONFIG_PPC_PSERIES 5275static const u16 ipr_blocked_processors[] = { 5276 PV_NORTHSTAR, 5277 PV_PULSAR, 5278 PV_POWER4, 5279 PV_ICESTAR, 5280 PV_SSTAR, 5281 PV_POWER4p, 5282 PV_630, 5283 PV_630p 5284}; 5285 5286/** 5287 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 5288 * @ioa_cfg: ioa cfg struct 5289 * 5290 * Adapters that use Gemstone revision < 3.1 do not work reliably on 5291 * certain pSeries hardware. This function determines if the given 5292 * adapter is in one of these confgurations or not. 5293 * 5294 * Return value: 5295 * 1 if adapter is not supported / 0 if adapter is supported 5296 **/ 5297static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 5298{ 5299 u8 rev_id; 5300 int i; 5301 5302 if (ioa_cfg->type == 0x5702) { 5303 if (pci_read_config_byte(ioa_cfg->pdev, PCI_REVISION_ID, 5304 &rev_id) == PCIBIOS_SUCCESSFUL) { 5305 if (rev_id < 4) { 5306 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 5307 if (__is_processor(ipr_blocked_processors[i])) 5308 return 1; 5309 } 5310 } 5311 } 5312 } 5313 return 0; 5314} 5315#else 5316#define ipr_invalid_adapter(ioa_cfg) 0 5317#endif 5318 5319/** 5320 * ipr_ioa_bringdown_done - IOA bring down completion. 5321 * @ipr_cmd: ipr command struct 5322 * 5323 * This function processes the completion of an adapter bring down. 5324 * It wakes any reset sleepers. 5325 * 5326 * Return value: 5327 * IPR_RC_JOB_RETURN 5328 **/ 5329static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 5330{ 5331 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5332 5333 ENTER; 5334 ioa_cfg->in_reset_reload = 0; 5335 ioa_cfg->reset_retries = 0; 5336 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5337 wake_up_all(&ioa_cfg->reset_wait_q); 5338 5339 spin_unlock_irq(ioa_cfg->host->host_lock); 5340 scsi_unblock_requests(ioa_cfg->host); 5341 spin_lock_irq(ioa_cfg->host->host_lock); 5342 LEAVE; 5343 5344 return IPR_RC_JOB_RETURN; 5345} 5346 5347/** 5348 * ipr_ioa_reset_done - IOA reset completion. 5349 * @ipr_cmd: ipr command struct 5350 * 5351 * This function processes the completion of an adapter reset. 5352 * It schedules any necessary mid-layer add/removes and 5353 * wakes any reset sleepers. 5354 * 5355 * Return value: 5356 * IPR_RC_JOB_RETURN 5357 **/ 5358static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 5359{ 5360 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5361 struct ipr_resource_entry *res; 5362 struct ipr_hostrcb *hostrcb, *temp; 5363 int i = 0; 5364 5365 ENTER; 5366 ioa_cfg->in_reset_reload = 0; 5367 ioa_cfg->allow_cmds = 1; 5368 ioa_cfg->reset_cmd = NULL; 5369 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 5370 5371 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 5372 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 5373 ipr_trace; 5374 break; 5375 } 5376 } 5377 schedule_work(&ioa_cfg->work_q); 5378 5379 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 5380 list_del(&hostrcb->queue); 5381 if (i++ < IPR_NUM_LOG_HCAMS) 5382 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 5383 else 5384 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 5385 } 5386 5387 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 5388 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 5389 5390 ioa_cfg->reset_retries = 0; 5391 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5392 wake_up_all(&ioa_cfg->reset_wait_q); 5393 5394 spin_unlock_irq(ioa_cfg->host->host_lock); 5395 scsi_unblock_requests(ioa_cfg->host); 5396 spin_lock_irq(ioa_cfg->host->host_lock); 5397 5398 if (!ioa_cfg->allow_cmds) 5399 scsi_block_requests(ioa_cfg->host); 5400 5401 LEAVE; 5402 return IPR_RC_JOB_RETURN; 5403} 5404 5405/** 5406 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 5407 * @supported_dev: supported device struct 5408 * @vpids: vendor product id struct 5409 * 5410 * Return value: 5411 * none 5412 **/ 5413static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 5414 struct ipr_std_inq_vpids *vpids) 5415{ 5416 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 5417 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 5418 supported_dev->num_records = 1; 5419 supported_dev->data_length = 5420 cpu_to_be16(sizeof(struct ipr_supported_device)); 5421 supported_dev->reserved = 0; 5422} 5423 5424/** 5425 * ipr_set_supported_devs - Send Set Supported Devices for a device 5426 * @ipr_cmd: ipr command struct 5427 * 5428 * This function send a Set Supported Devices to the adapter 5429 * 5430 * Return value: 5431 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5432 **/ 5433static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 5434{ 5435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5436 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 5437 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5438 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5439 struct ipr_resource_entry *res = ipr_cmd->u.res; 5440 5441 ipr_cmd->job_step = ipr_ioa_reset_done; 5442 5443 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 5444 if (!ipr_is_scsi_disk(res)) 5445 continue; 5446 5447 ipr_cmd->u.res = res; 5448 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); 5449 5450 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5451 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5452 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5453 5454 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 5455 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 5456 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 5457 5458 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | 5459 sizeof(struct ipr_supported_device)); 5460 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + 5461 offsetof(struct ipr_misc_cbs, supp_dev)); 5462 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5463 ioarcb->write_data_transfer_length = 5464 cpu_to_be32(sizeof(struct ipr_supported_device)); 5465 5466 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 5467 IPR_SET_SUP_DEVICE_TIMEOUT); 5468 5469 ipr_cmd->job_step = ipr_set_supported_devs; 5470 return IPR_RC_JOB_RETURN; 5471 } 5472 5473 return IPR_RC_JOB_CONTINUE; 5474} 5475 5476/** 5477 * ipr_setup_write_cache - Disable write cache if needed 5478 * @ipr_cmd: ipr command struct 5479 * 5480 * This function sets up adapters write cache to desired setting 5481 * 5482 * Return value: 5483 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5484 **/ 5485static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) 5486{ 5487 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5488 5489 ipr_cmd->job_step = ipr_set_supported_devs; 5490 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 5491 struct ipr_resource_entry, queue); 5492 5493 if (ioa_cfg->cache_state != CACHE_DISABLED) 5494 return IPR_RC_JOB_CONTINUE; 5495 5496 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5497 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5498 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 5499 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 5500 5501 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5502 5503 return IPR_RC_JOB_RETURN; 5504} 5505 5506/** 5507 * ipr_get_mode_page - Locate specified mode page 5508 * @mode_pages: mode page buffer 5509 * @page_code: page code to find 5510 * @len: minimum required length for mode page 5511 * 5512 * Return value: 5513 * pointer to mode page / NULL on failure 5514 **/ 5515static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 5516 u32 page_code, u32 len) 5517{ 5518 struct ipr_mode_page_hdr *mode_hdr; 5519 u32 page_length; 5520 u32 length; 5521 5522 if (!mode_pages || (mode_pages->hdr.length == 0)) 5523 return NULL; 5524 5525 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 5526 mode_hdr = (struct ipr_mode_page_hdr *) 5527 (mode_pages->data + mode_pages->hdr.block_desc_len); 5528 5529 while (length) { 5530 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 5531 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 5532 return mode_hdr; 5533 break; 5534 } else { 5535 page_length = (sizeof(struct ipr_mode_page_hdr) + 5536 mode_hdr->page_length); 5537 length -= page_length; 5538 mode_hdr = (struct ipr_mode_page_hdr *) 5539 ((unsigned long)mode_hdr + page_length); 5540 } 5541 } 5542 return NULL; 5543} 5544 5545/** 5546 * ipr_check_term_power - Check for term power errors 5547 * @ioa_cfg: ioa config struct 5548 * @mode_pages: IOAFP mode pages buffer 5549 * 5550 * Check the IOAFP's mode page 28 for term power errors 5551 * 5552 * Return value: 5553 * nothing 5554 **/ 5555static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 5556 struct ipr_mode_pages *mode_pages) 5557{ 5558 int i; 5559 int entry_length; 5560 struct ipr_dev_bus_entry *bus; 5561 struct ipr_mode_page28 *mode_page; 5562 5563 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5564 sizeof(struct ipr_mode_page28)); 5565 5566 entry_length = mode_page->entry_length; 5567 5568 bus = mode_page->bus; 5569 5570 for (i = 0; i < mode_page->num_entries; i++) { 5571 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 5572 dev_err(&ioa_cfg->pdev->dev, 5573 "Term power is absent on scsi bus %d\n", 5574 bus->res_addr.bus); 5575 } 5576 5577 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 5578 } 5579} 5580 5581/** 5582 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 5583 * @ioa_cfg: ioa config struct 5584 * 5585 * Looks through the config table checking for SES devices. If 5586 * the SES device is in the SES table indicating a maximum SCSI 5587 * bus speed, the speed is limited for the bus. 5588 * 5589 * Return value: 5590 * none 5591 **/ 5592static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 5593{ 5594 u32 max_xfer_rate; 5595 int i; 5596 5597 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 5598 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 5599 ioa_cfg->bus_attr[i].bus_width); 5600 5601 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 5602 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 5603 } 5604} 5605 5606/** 5607 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 5608 * @ioa_cfg: ioa config struct 5609 * @mode_pages: mode page 28 buffer 5610 * 5611 * Updates mode page 28 based on driver configuration 5612 * 5613 * Return value: 5614 * none 5615 **/ 5616static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 5617 struct ipr_mode_pages *mode_pages) 5618{ 5619 int i, entry_length; 5620 struct ipr_dev_bus_entry *bus; 5621 struct ipr_bus_attributes *bus_attr; 5622 struct ipr_mode_page28 *mode_page; 5623 5624 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5625 sizeof(struct ipr_mode_page28)); 5626 5627 entry_length = mode_page->entry_length; 5628 5629 /* Loop for each device bus entry */ 5630 for (i = 0, bus = mode_page->bus; 5631 i < mode_page->num_entries; 5632 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 5633 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 5634 dev_err(&ioa_cfg->pdev->dev, 5635 "Invalid resource address reported: 0x%08X\n", 5636 IPR_GET_PHYS_LOC(bus->res_addr)); 5637 continue; 5638 } 5639 5640 bus_attr = &ioa_cfg->bus_attr[i]; 5641 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 5642 bus->bus_width = bus_attr->bus_width; 5643 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 5644 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 5645 if (bus_attr->qas_enabled) 5646 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 5647 else 5648 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 5649 } 5650} 5651 5652/** 5653 * ipr_build_mode_select - Build a mode select command 5654 * @ipr_cmd: ipr command struct 5655 * @res_handle: resource handle to send command to 5656 * @parm: Byte 2 of Mode Sense command 5657 * @dma_addr: DMA buffer address 5658 * @xfer_len: data transfer length 5659 * 5660 * Return value: 5661 * none 5662 **/ 5663static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 5664 __be32 res_handle, u8 parm, u32 dma_addr, 5665 u8 xfer_len) 5666{ 5667 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5668 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5669 5670 ioarcb->res_handle = res_handle; 5671 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5672 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5673 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 5674 ioarcb->cmd_pkt.cdb[1] = parm; 5675 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5676 5677 ioadl->flags_and_data_len = 5678 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); 5679 ioadl->address = cpu_to_be32(dma_addr); 5680 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5681 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); 5682} 5683 5684/** 5685 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 5686 * @ipr_cmd: ipr command struct 5687 * 5688 * This function sets up the SCSI bus attributes and sends 5689 * a Mode Select for Page 28 to activate them. 5690 * 5691 * Return value: 5692 * IPR_RC_JOB_RETURN 5693 **/ 5694static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 5695{ 5696 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5697 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5698 int length; 5699 5700 ENTER; 5701 ipr_scsi_bus_speed_limit(ioa_cfg); 5702 ipr_check_term_power(ioa_cfg, mode_pages); 5703 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 5704 length = mode_pages->hdr.length + 1; 5705 mode_pages->hdr.length = 0; 5706 5707 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5708 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5709 length); 5710 5711 ipr_cmd->job_step = ipr_setup_write_cache; 5712 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5713 5714 LEAVE; 5715 return IPR_RC_JOB_RETURN; 5716} 5717 5718/** 5719 * ipr_build_mode_sense - Builds a mode sense command 5720 * @ipr_cmd: ipr command struct 5721 * @res: resource entry struct 5722 * @parm: Byte 2 of mode sense command 5723 * @dma_addr: DMA address of mode sense buffer 5724 * @xfer_len: Size of DMA buffer 5725 * 5726 * Return value: 5727 * none 5728 **/ 5729static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 5730 __be32 res_handle, 5731 u8 parm, u32 dma_addr, u8 xfer_len) 5732{ 5733 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5734 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5735 5736 ioarcb->res_handle = res_handle; 5737 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 5738 ioarcb->cmd_pkt.cdb[2] = parm; 5739 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5740 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5741 5742 ioadl->flags_and_data_len = 5743 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 5744 ioadl->address = cpu_to_be32(dma_addr); 5745 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5746 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 5747} 5748 5749/** 5750 * ipr_reset_cmd_failed - Handle failure of IOA reset command 5751 * @ipr_cmd: ipr command struct 5752 * 5753 * This function handles the failure of an IOA bringup command. 5754 * 5755 * Return value: 5756 * IPR_RC_JOB_RETURN 5757 **/ 5758static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 5759{ 5760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5761 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5762 5763 dev_err(&ioa_cfg->pdev->dev, 5764 "0x%02X failed with IOASC: 0x%08X\n", 5765 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 5766 5767 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5768 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5769 return IPR_RC_JOB_RETURN; 5770} 5771 5772/** 5773 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 5774 * @ipr_cmd: ipr command struct 5775 * 5776 * This function handles the failure of a Mode Sense to the IOAFP. 5777 * Some adapters do not handle all mode pages. 5778 * 5779 * Return value: 5780 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5781 **/ 5782static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 5783{ 5784 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5785 5786 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5787 ipr_cmd->job_step = ipr_setup_write_cache; 5788 return IPR_RC_JOB_CONTINUE; 5789 } 5790 5791 return ipr_reset_cmd_failed(ipr_cmd); 5792} 5793 5794/** 5795 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 5796 * @ipr_cmd: ipr command struct 5797 * 5798 * This function send a Page 28 mode sense to the IOA to 5799 * retrieve SCSI bus attributes. 5800 * 5801 * Return value: 5802 * IPR_RC_JOB_RETURN 5803 **/ 5804static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 5805{ 5806 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5807 5808 ENTER; 5809 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5810 0x28, ioa_cfg->vpd_cbs_dma + 5811 offsetof(struct ipr_misc_cbs, mode_pages), 5812 sizeof(struct ipr_mode_pages)); 5813 5814 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 5815 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 5816 5817 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5818 5819 LEAVE; 5820 return IPR_RC_JOB_RETURN; 5821} 5822 5823/** 5824 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 5825 * @ipr_cmd: ipr command struct 5826 * 5827 * This function enables dual IOA RAID support if possible. 5828 * 5829 * Return value: 5830 * IPR_RC_JOB_RETURN 5831 **/ 5832static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 5833{ 5834 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5835 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5836 struct ipr_mode_page24 *mode_page; 5837 int length; 5838 5839 ENTER; 5840 mode_page = ipr_get_mode_page(mode_pages, 0x24, 5841 sizeof(struct ipr_mode_page24)); 5842 5843 if (mode_page) 5844 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 5845 5846 length = mode_pages->hdr.length + 1; 5847 mode_pages->hdr.length = 0; 5848 5849 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5850 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5851 length); 5852 5853 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5854 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5855 5856 LEAVE; 5857 return IPR_RC_JOB_RETURN; 5858} 5859 5860/** 5861 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 5862 * @ipr_cmd: ipr command struct 5863 * 5864 * This function handles the failure of a Mode Sense to the IOAFP. 5865 * Some adapters do not handle all mode pages. 5866 * 5867 * Return value: 5868 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5869 **/ 5870static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 5871{ 5872 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5873 5874 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5875 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5876 return IPR_RC_JOB_CONTINUE; 5877 } 5878 5879 return ipr_reset_cmd_failed(ipr_cmd); 5880} 5881 5882/** 5883 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 5884 * @ipr_cmd: ipr command struct 5885 * 5886 * This function send a mode sense to the IOA to retrieve 5887 * the IOA Advanced Function Control mode page. 5888 * 5889 * Return value: 5890 * IPR_RC_JOB_RETURN 5891 **/ 5892static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 5893{ 5894 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5895 5896 ENTER; 5897 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5898 0x24, ioa_cfg->vpd_cbs_dma + 5899 offsetof(struct ipr_misc_cbs, mode_pages), 5900 sizeof(struct ipr_mode_pages)); 5901 5902 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 5903 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 5904 5905 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5906 5907 LEAVE; 5908 return IPR_RC_JOB_RETURN; 5909} 5910 5911/** 5912 * ipr_init_res_table - Initialize the resource table 5913 * @ipr_cmd: ipr command struct 5914 * 5915 * This function looks through the existing resource table, comparing 5916 * it with the config table. This function will take care of old/new 5917 * devices and schedule adding/removing them from the mid-layer 5918 * as appropriate. 5919 * 5920 * Return value: 5921 * IPR_RC_JOB_CONTINUE 5922 **/ 5923static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 5924{ 5925 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5926 struct ipr_resource_entry *res, *temp; 5927 struct ipr_config_table_entry *cfgte; 5928 int found, i; 5929 LIST_HEAD(old_res); 5930 5931 ENTER; 5932 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) 5933 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 5934 5935 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 5936 list_move_tail(&res->queue, &old_res); 5937 5938 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { 5939 cfgte = &ioa_cfg->cfg_table->dev[i]; 5940 found = 0; 5941 5942 list_for_each_entry_safe(res, temp, &old_res, queue) { 5943 if (!memcmp(&res->cfgte.res_addr, 5944 &cfgte->res_addr, sizeof(cfgte->res_addr))) { 5945 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5946 found = 1; 5947 break; 5948 } 5949 } 5950 5951 if (!found) { 5952 if (list_empty(&ioa_cfg->free_res_q)) { 5953 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 5954 break; 5955 } 5956 5957 found = 1; 5958 res = list_entry(ioa_cfg->free_res_q.next, 5959 struct ipr_resource_entry, queue); 5960 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5961 ipr_init_res_entry(res); 5962 res->add_to_ml = 1; 5963 } 5964 5965 if (found) 5966 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 5967 } 5968 5969 list_for_each_entry_safe(res, temp, &old_res, queue) { 5970 if (res->sdev) { 5971 res->del_from_ml = 1; 5972 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 5973 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5974 } else { 5975 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 5976 } 5977 } 5978 5979 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 5980 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 5981 else 5982 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5983 5984 LEAVE; 5985 return IPR_RC_JOB_CONTINUE; 5986} 5987 5988/** 5989 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 5990 * @ipr_cmd: ipr command struct 5991 * 5992 * This function sends a Query IOA Configuration command 5993 * to the adapter to retrieve the IOA configuration table. 5994 * 5995 * Return value: 5996 * IPR_RC_JOB_RETURN 5997 **/ 5998static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 5999{ 6000 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6001 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6002 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6003 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6004 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6005 6006 ENTER; 6007 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6008 ioa_cfg->dual_raid = 1; 6009 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6010 ucode_vpd->major_release, ucode_vpd->card_type, 6011 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6012 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6013 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6014 6015 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6016 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; 6017 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; 6018 6019 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6020 ioarcb->read_data_transfer_length = 6021 cpu_to_be32(sizeof(struct ipr_config_table)); 6022 6023 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); 6024 ioadl->flags_and_data_len = 6025 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); 6026 6027 ipr_cmd->job_step = ipr_init_res_table; 6028 6029 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6030 6031 LEAVE; 6032 return IPR_RC_JOB_RETURN; 6033} 6034 6035/** 6036 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6037 * @ipr_cmd: ipr command struct 6038 * 6039 * This utility function sends an inquiry to the adapter. 6040 * 6041 * Return value: 6042 * none 6043 **/ 6044static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6045 u32 dma_addr, u8 xfer_len) 6046{ 6047 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6048 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6049 6050 ENTER; 6051 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6052 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6053 6054 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6055 ioarcb->cmd_pkt.cdb[1] = flags; 6056 ioarcb->cmd_pkt.cdb[2] = page; 6057 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6058 6059 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6060 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 6061 6062 ioadl->address = cpu_to_be32(dma_addr); 6063 ioadl->flags_and_data_len = 6064 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 6065 6066 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6067 LEAVE; 6068} 6069 6070/** 6071 * ipr_inquiry_page_supported - Is the given inquiry page supported 6072 * @page0: inquiry page 0 buffer 6073 * @page: page code. 6074 * 6075 * This function determines if the specified inquiry page is supported. 6076 * 6077 * Return value: 6078 * 1 if page is supported / 0 if not 6079 **/ 6080static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6081{ 6082 int i; 6083 6084 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6085 if (page0->page[i] == page) 6086 return 1; 6087 6088 return 0; 6089} 6090 6091/** 6092 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6093 * @ipr_cmd: ipr command struct 6094 * 6095 * This function sends a Page 0xD0 inquiry to the adapter 6096 * to retrieve adapter capabilities. 6097 * 6098 * Return value: 6099 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6100 **/ 6101static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6102{ 6103 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6104 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6105 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6106 6107 ENTER; 6108 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6109 memset(cap, 0, sizeof(*cap)); 6110 6111 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6112 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6113 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6114 sizeof(struct ipr_inquiry_cap)); 6115 return IPR_RC_JOB_RETURN; 6116 } 6117 6118 LEAVE; 6119 return IPR_RC_JOB_CONTINUE; 6120} 6121 6122/** 6123 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6124 * @ipr_cmd: ipr command struct 6125 * 6126 * This function sends a Page 3 inquiry to the adapter 6127 * to retrieve software VPD information. 6128 * 6129 * Return value: 6130 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6131 **/ 6132static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6133{ 6134 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6135 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6136 6137 ENTER; 6138 6139 if (!ipr_inquiry_page_supported(page0, 1)) 6140 ioa_cfg->cache_state = CACHE_NONE; 6141 6142 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6143 6144 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6145 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6146 sizeof(struct ipr_inquiry_page3)); 6147 6148 LEAVE; 6149 return IPR_RC_JOB_RETURN; 6150} 6151 6152/** 6153 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6154 * @ipr_cmd: ipr command struct 6155 * 6156 * This function sends a Page 0 inquiry to the adapter 6157 * to retrieve supported inquiry pages. 6158 * 6159 * Return value: 6160 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6161 **/ 6162static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6163{ 6164 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6165 char type[5]; 6166 6167 ENTER; 6168 6169 /* Grab the type out of the VPD and store it away */ 6170 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6171 type[4] = '\0'; 6172 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6173 6174 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6175 6176 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6177 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6178 sizeof(struct ipr_inquiry_page0)); 6179 6180 LEAVE; 6181 return IPR_RC_JOB_RETURN; 6182} 6183 6184/** 6185 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6186 * @ipr_cmd: ipr command struct 6187 * 6188 * This function sends a standard inquiry to the adapter. 6189 * 6190 * Return value: 6191 * IPR_RC_JOB_RETURN 6192 **/ 6193static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6194{ 6195 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6196 6197 ENTER; 6198 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6199 6200 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6201 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6202 sizeof(struct ipr_ioa_vpd)); 6203 6204 LEAVE; 6205 return IPR_RC_JOB_RETURN; 6206} 6207 6208/** 6209 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. 6210 * @ipr_cmd: ipr command struct 6211 * 6212 * This function send an Identify Host Request Response Queue 6213 * command to establish the HRRQ with the adapter. 6214 * 6215 * Return value: 6216 * IPR_RC_JOB_RETURN 6217 **/ 6218static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) 6219{ 6220 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6221 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6222 6223 ENTER; 6224 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 6225 6226 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 6227 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6228 6229 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6230 ioarcb->cmd_pkt.cdb[2] = 6231 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; 6232 ioarcb->cmd_pkt.cdb[3] = 6233 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; 6234 ioarcb->cmd_pkt.cdb[4] = 6235 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; 6236 ioarcb->cmd_pkt.cdb[5] = 6237 ((u32) ioa_cfg->host_rrq_dma) & 0xff; 6238 ioarcb->cmd_pkt.cdb[7] = 6239 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 6240 ioarcb->cmd_pkt.cdb[8] = 6241 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 6242 6243 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 6244 6245 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6246 6247 LEAVE; 6248 return IPR_RC_JOB_RETURN; 6249} 6250 6251/** 6252 * ipr_reset_timer_done - Adapter reset timer function 6253 * @ipr_cmd: ipr command struct 6254 * 6255 * Description: This function is used in adapter reset processing 6256 * for timing events. If the reset_cmd pointer in the IOA 6257 * config struct is not this adapter's we are doing nested 6258 * resets and fail_all_ops will take care of freeing the 6259 * command block. 6260 * 6261 * Return value: 6262 * none 6263 **/ 6264static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 6265{ 6266 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6267 unsigned long lock_flags = 0; 6268 6269 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 6270 6271 if (ioa_cfg->reset_cmd == ipr_cmd) { 6272 list_del(&ipr_cmd->queue); 6273 ipr_cmd->done(ipr_cmd); 6274 } 6275 6276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 6277} 6278 6279/** 6280 * ipr_reset_start_timer - Start a timer for adapter reset job 6281 * @ipr_cmd: ipr command struct 6282 * @timeout: timeout value 6283 * 6284 * Description: This function is used in adapter reset processing 6285 * for timing events. If the reset_cmd pointer in the IOA 6286 * config struct is not this adapter's we are doing nested 6287 * resets and fail_all_ops will take care of freeing the 6288 * command block. 6289 * 6290 * Return value: 6291 * none 6292 **/ 6293static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 6294 unsigned long timeout) 6295{ 6296 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6297 ipr_cmd->done = ipr_reset_ioa_job; 6298 6299 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6300 ipr_cmd->timer.expires = jiffies + timeout; 6301 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 6302 add_timer(&ipr_cmd->timer); 6303} 6304 6305/** 6306 * ipr_init_ioa_mem - Initialize ioa_cfg control block 6307 * @ioa_cfg: ioa cfg struct 6308 * 6309 * Return value: 6310 * nothing 6311 **/ 6312static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 6313{ 6314 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 6315 6316 /* Initialize Host RRQ pointers */ 6317 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 6318 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 6319 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 6320 ioa_cfg->toggle_bit = 1; 6321 6322 /* Zero out config table */ 6323 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); 6324} 6325 6326/** 6327 * ipr_reset_enable_ioa - Enable the IOA following a reset. 6328 * @ipr_cmd: ipr command struct 6329 * 6330 * This function reinitializes some control blocks and 6331 * enables destructive diagnostics on the adapter. 6332 * 6333 * Return value: 6334 * IPR_RC_JOB_RETURN 6335 **/ 6336static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 6337{ 6338 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6339 volatile u32 int_reg; 6340 6341 ENTER; 6342 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; 6343 ipr_init_ioa_mem(ioa_cfg); 6344 6345 ioa_cfg->allow_interrupts = 1; 6346 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6347 6348 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 6349 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 6350 ioa_cfg->regs.clr_interrupt_mask_reg); 6351 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6352 return IPR_RC_JOB_CONTINUE; 6353 } 6354 6355 /* Enable destructive diagnostics on IOA */ 6356 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); 6357 6358 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); 6359 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6360 6361 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 6362 6363 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6364 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 6365 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 6366 ipr_cmd->done = ipr_reset_ioa_job; 6367 add_timer(&ipr_cmd->timer); 6368 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6369 6370 LEAVE; 6371 return IPR_RC_JOB_RETURN; 6372} 6373 6374/** 6375 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 6376 * @ipr_cmd: ipr command struct 6377 * 6378 * This function is invoked when an adapter dump has run out 6379 * of processing time. 6380 * 6381 * Return value: 6382 * IPR_RC_JOB_CONTINUE 6383 **/ 6384static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 6385{ 6386 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6387 6388 if (ioa_cfg->sdt_state == GET_DUMP) 6389 ioa_cfg->sdt_state = ABORT_DUMP; 6390 6391 ipr_cmd->job_step = ipr_reset_alert; 6392 6393 return IPR_RC_JOB_CONTINUE; 6394} 6395 6396/** 6397 * ipr_unit_check_no_data - Log a unit check/no data error log 6398 * @ioa_cfg: ioa config struct 6399 * 6400 * Logs an error indicating the adapter unit checked, but for some 6401 * reason, we were unable to fetch the unit check buffer. 6402 * 6403 * Return value: 6404 * nothing 6405 **/ 6406static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 6407{ 6408 ioa_cfg->errors_logged++; 6409 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 6410} 6411 6412/** 6413 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 6414 * @ioa_cfg: ioa config struct 6415 * 6416 * Fetches the unit check buffer from the adapter by clocking the data 6417 * through the mailbox register. 6418 * 6419 * Return value: 6420 * nothing 6421 **/ 6422static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 6423{ 6424 unsigned long mailbox; 6425 struct ipr_hostrcb *hostrcb; 6426 struct ipr_uc_sdt sdt; 6427 int rc, length; 6428 u32 ioasc; 6429 6430 mailbox = readl(ioa_cfg->ioa_mailbox); 6431 6432 if (!ipr_sdt_is_fmt2(mailbox)) { 6433 ipr_unit_check_no_data(ioa_cfg); 6434 return; 6435 } 6436 6437 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 6438 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 6439 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 6440 6441 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || 6442 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { 6443 ipr_unit_check_no_data(ioa_cfg); 6444 return; 6445 } 6446 6447 /* Find length of the first sdt entry (UC buffer) */ 6448 length = (be32_to_cpu(sdt.entry[0].end_offset) - 6449 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; 6450 6451 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 6452 struct ipr_hostrcb, queue); 6453 list_del(&hostrcb->queue); 6454 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 6455 6456 rc = ipr_get_ldump_data_section(ioa_cfg, 6457 be32_to_cpu(sdt.entry[0].bar_str_offset), 6458 (__be32 *)&hostrcb->hcam, 6459 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 6460 6461 if (!rc) { 6462 ipr_handle_log_data(ioa_cfg, hostrcb); 6463 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 6464 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 6465 ioa_cfg->sdt_state == GET_DUMP) 6466 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 6467 } else 6468 ipr_unit_check_no_data(ioa_cfg); 6469 6470 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 6471} 6472 6473/** 6474 * ipr_reset_restore_cfg_space - Restore PCI config space. 6475 * @ipr_cmd: ipr command struct 6476 * 6477 * Description: This function restores the saved PCI config space of 6478 * the adapter, fails all outstanding ops back to the callers, and 6479 * fetches the dump/unit check if applicable to this reset. 6480 * 6481 * Return value: 6482 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6483 **/ 6484static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 6485{ 6486 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6487 int rc; 6488 6489 ENTER; 6490 rc = pci_restore_state(ioa_cfg->pdev); 6491 6492 if (rc != PCIBIOS_SUCCESSFUL) { 6493 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6494 return IPR_RC_JOB_CONTINUE; 6495 } 6496 6497 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 6498 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6499 return IPR_RC_JOB_CONTINUE; 6500 } 6501 6502 ipr_fail_all_ops(ioa_cfg); 6503 6504 if (ioa_cfg->ioa_unit_checked) { 6505 ioa_cfg->ioa_unit_checked = 0; 6506 ipr_get_unit_check_buffer(ioa_cfg); 6507 ipr_cmd->job_step = ipr_reset_alert; 6508 ipr_reset_start_timer(ipr_cmd, 0); 6509 return IPR_RC_JOB_RETURN; 6510 } 6511 6512 if (ioa_cfg->in_ioa_bringdown) { 6513 ipr_cmd->job_step = ipr_ioa_bringdown_done; 6514 } else { 6515 ipr_cmd->job_step = ipr_reset_enable_ioa; 6516 6517 if (GET_DUMP == ioa_cfg->sdt_state) { 6518 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 6519 ipr_cmd->job_step = ipr_reset_wait_for_dump; 6520 schedule_work(&ioa_cfg->work_q); 6521 return IPR_RC_JOB_RETURN; 6522 } 6523 } 6524 6525 ENTER; 6526 return IPR_RC_JOB_CONTINUE; 6527} 6528 6529/** 6530 * ipr_reset_bist_done - BIST has completed on the adapter. 6531 * @ipr_cmd: ipr command struct 6532 * 6533 * Description: Unblock config space and resume the reset process. 6534 * 6535 * Return value: 6536 * IPR_RC_JOB_CONTINUE 6537 **/ 6538static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 6539{ 6540 ENTER; 6541 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6542 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 6543 LEAVE; 6544 return IPR_RC_JOB_CONTINUE; 6545} 6546 6547/** 6548 * ipr_reset_start_bist - Run BIST on the adapter. 6549 * @ipr_cmd: ipr command struct 6550 * 6551 * Description: This function runs BIST on the adapter, then delays 2 seconds. 6552 * 6553 * Return value: 6554 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6555 **/ 6556static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 6557{ 6558 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6559 int rc; 6560 6561 ENTER; 6562 pci_block_user_cfg_access(ioa_cfg->pdev); 6563 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 6564 6565 if (rc != PCIBIOS_SUCCESSFUL) { 6566 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6567 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6568 rc = IPR_RC_JOB_CONTINUE; 6569 } else { 6570 ipr_cmd->job_step = ipr_reset_bist_done; 6571 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6572 rc = IPR_RC_JOB_RETURN; 6573 } 6574 6575 LEAVE; 6576 return rc; 6577} 6578 6579/** 6580 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 6581 * @ipr_cmd: ipr command struct 6582 * 6583 * Description: This clears PCI reset to the adapter and delays two seconds. 6584 * 6585 * Return value: 6586 * IPR_RC_JOB_RETURN 6587 **/ 6588static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 6589{ 6590 ENTER; 6591 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 6592 ipr_cmd->job_step = ipr_reset_bist_done; 6593 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6594 LEAVE; 6595 return IPR_RC_JOB_RETURN; 6596} 6597 6598/** 6599 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 6600 * @ipr_cmd: ipr command struct 6601 * 6602 * Description: This asserts PCI reset to the adapter. 6603 * 6604 * Return value: 6605 * IPR_RC_JOB_RETURN 6606 **/ 6607static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 6608{ 6609 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6610 struct pci_dev *pdev = ioa_cfg->pdev; 6611 6612 ENTER; 6613 pci_block_user_cfg_access(pdev); 6614 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 6615 ipr_cmd->job_step = ipr_reset_slot_reset_done; 6616 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 6617 LEAVE; 6618 return IPR_RC_JOB_RETURN; 6619} 6620 6621/** 6622 * ipr_reset_allowed - Query whether or not IOA can be reset 6623 * @ioa_cfg: ioa config struct 6624 * 6625 * Return value: 6626 * 0 if reset not allowed / non-zero if reset is allowed 6627 **/ 6628static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 6629{ 6630 volatile u32 temp_reg; 6631 6632 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6633 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 6634} 6635 6636/** 6637 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 6638 * @ipr_cmd: ipr command struct 6639 * 6640 * Description: This function waits for adapter permission to run BIST, 6641 * then runs BIST. If the adapter does not give permission after a 6642 * reasonable time, we will reset the adapter anyway. The impact of 6643 * resetting the adapter without warning the adapter is the risk of 6644 * losing the persistent error log on the adapter. If the adapter is 6645 * reset while it is writing to the flash on the adapter, the flash 6646 * segment will have bad ECC and be zeroed. 6647 * 6648 * Return value: 6649 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6650 **/ 6651static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 6652{ 6653 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6654 int rc = IPR_RC_JOB_RETURN; 6655 6656 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 6657 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 6658 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6659 } else { 6660 ipr_cmd->job_step = ioa_cfg->reset; 6661 rc = IPR_RC_JOB_CONTINUE; 6662 } 6663 6664 return rc; 6665} 6666 6667/** 6668 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 6669 * @ipr_cmd: ipr command struct 6670 * 6671 * Description: This function alerts the adapter that it will be reset. 6672 * If memory space is not currently enabled, proceed directly 6673 * to running BIST on the adapter. The timer must always be started 6674 * so we guarantee we do not run BIST from ipr_isr. 6675 * 6676 * Return value: 6677 * IPR_RC_JOB_RETURN 6678 **/ 6679static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 6680{ 6681 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6682 u16 cmd_reg; 6683 int rc; 6684 6685 ENTER; 6686 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 6687 6688 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 6689 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 6690 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); 6691 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 6692 } else { 6693 ipr_cmd->job_step = ioa_cfg->reset; 6694 } 6695 6696 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 6697 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6698 6699 LEAVE; 6700 return IPR_RC_JOB_RETURN; 6701} 6702 6703/** 6704 * ipr_reset_ucode_download_done - Microcode download completion 6705 * @ipr_cmd: ipr command struct 6706 * 6707 * Description: This function unmaps the microcode download buffer. 6708 * 6709 * Return value: 6710 * IPR_RC_JOB_CONTINUE 6711 **/ 6712static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 6713{ 6714 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6715 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6716 6717 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 6718 sglist->num_sg, DMA_TO_DEVICE); 6719 6720 ipr_cmd->job_step = ipr_reset_alert; 6721 return IPR_RC_JOB_CONTINUE; 6722} 6723 6724/** 6725 * ipr_reset_ucode_download - Download microcode to the adapter 6726 * @ipr_cmd: ipr command struct 6727 * 6728 * Description: This function checks to see if it there is microcode 6729 * to download to the adapter. If there is, a download is performed. 6730 * 6731 * Return value: 6732 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6733 **/ 6734static int ipr_reset_ucode_download(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 ENTER; 6740 ipr_cmd->job_step = ipr_reset_alert; 6741 6742 if (!sglist) 6743 return IPR_RC_JOB_CONTINUE; 6744 6745 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6746 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6747 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 6748 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 6749 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 6750 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 6751 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 6752 6753 ipr_build_ucode_ioadl(ipr_cmd, sglist); 6754 ipr_cmd->job_step = ipr_reset_ucode_download_done; 6755 6756 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6757 IPR_WRITE_BUFFER_TIMEOUT); 6758 6759 LEAVE; 6760 return IPR_RC_JOB_RETURN; 6761} 6762 6763/** 6764 * ipr_reset_shutdown_ioa - Shutdown the adapter 6765 * @ipr_cmd: ipr command struct 6766 * 6767 * Description: This function issues an adapter shutdown of the 6768 * specified type to the specified adapter as part of the 6769 * adapter reset job. 6770 * 6771 * Return value: 6772 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6773 **/ 6774static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 6775{ 6776 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6777 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 6778 unsigned long timeout; 6779 int rc = IPR_RC_JOB_CONTINUE; 6780 6781 ENTER; 6782 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 6783 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6784 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6785 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 6786 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 6787 6788 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 6789 timeout = IPR_SHUTDOWN_TIMEOUT; 6790 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 6791 timeout = IPR_INTERNAL_TIMEOUT; 6792 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6793 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 6794 else 6795 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 6796 6797 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 6798 6799 rc = IPR_RC_JOB_RETURN; 6800 ipr_cmd->job_step = ipr_reset_ucode_download; 6801 } else 6802 ipr_cmd->job_step = ipr_reset_alert; 6803 6804 LEAVE; 6805 return rc; 6806} 6807 6808/** 6809 * ipr_reset_ioa_job - Adapter reset job 6810 * @ipr_cmd: ipr command struct 6811 * 6812 * Description: This function is the job router for the adapter reset job. 6813 * 6814 * Return value: 6815 * none 6816 **/ 6817static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 6818{ 6819 u32 rc, ioasc; 6820 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6821 6822 do { 6823 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6824 6825 if (ioa_cfg->reset_cmd != ipr_cmd) { 6826 /* 6827 * We are doing nested adapter resets and this is 6828 * not the current reset job. 6829 */ 6830 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6831 return; 6832 } 6833 6834 if (IPR_IOASC_SENSE_KEY(ioasc)) { 6835 rc = ipr_cmd->job_step_failed(ipr_cmd); 6836 if (rc == IPR_RC_JOB_RETURN) 6837 return; 6838 } 6839 6840 ipr_reinit_ipr_cmnd(ipr_cmd); 6841 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 6842 rc = ipr_cmd->job_step(ipr_cmd); 6843 } while(rc == IPR_RC_JOB_CONTINUE); 6844} 6845 6846/** 6847 * _ipr_initiate_ioa_reset - Initiate an adapter reset 6848 * @ioa_cfg: ioa config struct 6849 * @job_step: first job step of reset job 6850 * @shutdown_type: shutdown type 6851 * 6852 * Description: This function will initiate the reset of the given adapter 6853 * starting at the selected job step. 6854 * If the caller needs to wait on the completion of the reset, 6855 * the caller must sleep on the reset_wait_q. 6856 * 6857 * Return value: 6858 * none 6859 **/ 6860static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6861 int (*job_step) (struct ipr_cmnd *), 6862 enum ipr_shutdown_type shutdown_type) 6863{ 6864 struct ipr_cmnd *ipr_cmd; 6865 6866 ioa_cfg->in_reset_reload = 1; 6867 ioa_cfg->allow_cmds = 0; 6868 scsi_block_requests(ioa_cfg->host); 6869 6870 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6871 ioa_cfg->reset_cmd = ipr_cmd; 6872 ipr_cmd->job_step = job_step; 6873 ipr_cmd->u.shutdown_type = shutdown_type; 6874 6875 ipr_reset_ioa_job(ipr_cmd); 6876} 6877 6878/** 6879 * ipr_initiate_ioa_reset - Initiate an adapter reset 6880 * @ioa_cfg: ioa config struct 6881 * @shutdown_type: shutdown type 6882 * 6883 * Description: This function will initiate the reset of the given adapter. 6884 * If the caller needs to wait on the completion of the reset, 6885 * the caller must sleep on the reset_wait_q. 6886 * 6887 * Return value: 6888 * none 6889 **/ 6890static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6891 enum ipr_shutdown_type shutdown_type) 6892{ 6893 if (ioa_cfg->ioa_is_dead) 6894 return; 6895 6896 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 6897 ioa_cfg->sdt_state = ABORT_DUMP; 6898 6899 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 6900 dev_err(&ioa_cfg->pdev->dev, 6901 "IOA taken offline - error recovery failed\n"); 6902 6903 ioa_cfg->reset_retries = 0; 6904 ioa_cfg->ioa_is_dead = 1; 6905 6906 if (ioa_cfg->in_ioa_bringdown) { 6907 ioa_cfg->reset_cmd = NULL; 6908 ioa_cfg->in_reset_reload = 0; 6909 ipr_fail_all_ops(ioa_cfg); 6910 wake_up_all(&ioa_cfg->reset_wait_q); 6911 6912 spin_unlock_irq(ioa_cfg->host->host_lock); 6913 scsi_unblock_requests(ioa_cfg->host); 6914 spin_lock_irq(ioa_cfg->host->host_lock); 6915 return; 6916 } else { 6917 ioa_cfg->in_ioa_bringdown = 1; 6918 shutdown_type = IPR_SHUTDOWN_NONE; 6919 } 6920 } 6921 6922 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 6923 shutdown_type); 6924} 6925 6926/** 6927 * ipr_reset_freeze - Hold off all I/O activity 6928 * @ipr_cmd: ipr command struct 6929 * 6930 * Description: If the PCI slot is frozen, hold off all I/O 6931 * activity; then, as soon as the slot is available again, 6932 * initiate an adapter reset. 6933 */ 6934static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 6935{ 6936 /* Disallow new interrupts, avoid loop */ 6937 ipr_cmd->ioa_cfg->allow_interrupts = 0; 6938 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6939 ipr_cmd->done = ipr_reset_ioa_job; 6940 return IPR_RC_JOB_RETURN; 6941} 6942 6943/** 6944 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 6945 * @pdev: PCI device struct 6946 * 6947 * Description: This routine is called to tell us that the PCI bus 6948 * is down. Can't do anything here, except put the device driver 6949 * into a holding pattern, waiting for the PCI bus to come back. 6950 */ 6951static void ipr_pci_frozen(struct pci_dev *pdev) 6952{ 6953 unsigned long flags = 0; 6954 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6955 6956 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6957 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 6958 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6959} 6960 6961/** 6962 * ipr_pci_slot_reset - Called when PCI slot has been reset. 6963 * @pdev: PCI device struct 6964 * 6965 * Description: This routine is called by the pci error recovery 6966 * code after the PCI slot has been reset, just before we 6967 * should resume normal operations. 6968 */ 6969static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 6970{ 6971 unsigned long flags = 0; 6972 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6973 6974 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6975 if (ioa_cfg->needs_warm_reset) 6976 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6977 else 6978 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 6979 IPR_SHUTDOWN_NONE); 6980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6981 return PCI_ERS_RESULT_RECOVERED; 6982} 6983 6984/** 6985 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 6986 * @pdev: PCI device struct 6987 * 6988 * Description: This routine is called when the PCI bus has 6989 * permanently failed. 6990 */ 6991static void ipr_pci_perm_failure(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 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 6998 ioa_cfg->sdt_state = ABORT_DUMP; 6999 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 7000 ioa_cfg->in_ioa_bringdown = 1; 7001 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7002 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7003} 7004 7005/** 7006 * ipr_pci_error_detected - Called when a PCI error is detected. 7007 * @pdev: PCI device struct 7008 * @state: PCI channel state 7009 * 7010 * Description: Called when a PCI error is detected. 7011 * 7012 * Return value: 7013 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7014 */ 7015static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7016 pci_channel_state_t state) 7017{ 7018 switch (state) { 7019 case pci_channel_io_frozen: 7020 ipr_pci_frozen(pdev); 7021 return PCI_ERS_RESULT_NEED_RESET; 7022 case pci_channel_io_perm_failure: 7023 ipr_pci_perm_failure(pdev); 7024 return PCI_ERS_RESULT_DISCONNECT; 7025 break; 7026 default: 7027 break; 7028 } 7029 return PCI_ERS_RESULT_NEED_RESET; 7030} 7031 7032/** 7033 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7034 * @ioa_cfg: ioa cfg struct 7035 * 7036 * Description: This is the second phase of adapter intialization 7037 * This function takes care of initilizing the adapter to the point 7038 * where it can accept new commands. 7039 7040 * Return value: 7041 * 0 on sucess / -EIO on failure 7042 **/ 7043static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7044{ 7045 int rc = 0; 7046 unsigned long host_lock_flags = 0; 7047 7048 ENTER; 7049 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7050 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7051 if (ioa_cfg->needs_hard_reset) { 7052 ioa_cfg->needs_hard_reset = 0; 7053 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7054 } else 7055 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7056 IPR_SHUTDOWN_NONE); 7057 7058 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7059 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7060 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7061 7062 if (ioa_cfg->ioa_is_dead) { 7063 rc = -EIO; 7064 } else if (ipr_invalid_adapter(ioa_cfg)) { 7065 if (!ipr_testmode) 7066 rc = -EIO; 7067 7068 dev_err(&ioa_cfg->pdev->dev, 7069 "Adapter not supported in this hardware configuration.\n"); 7070 } 7071 7072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7073 7074 LEAVE; 7075 return rc; 7076} 7077 7078/** 7079 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7080 * @ioa_cfg: ioa config struct 7081 * 7082 * Return value: 7083 * none 7084 **/ 7085static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7086{ 7087 int i; 7088 7089 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7090 if (ioa_cfg->ipr_cmnd_list[i]) 7091 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7092 ioa_cfg->ipr_cmnd_list[i], 7093 ioa_cfg->ipr_cmnd_list_dma[i]); 7094 7095 ioa_cfg->ipr_cmnd_list[i] = NULL; 7096 } 7097 7098 if (ioa_cfg->ipr_cmd_pool) 7099 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7100 7101 ioa_cfg->ipr_cmd_pool = NULL; 7102} 7103 7104/** 7105 * ipr_free_mem - Frees memory allocated for an adapter 7106 * @ioa_cfg: ioa cfg struct 7107 * 7108 * Return value: 7109 * nothing 7110 **/ 7111static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7112{ 7113 int i; 7114 7115 kfree(ioa_cfg->res_entries); 7116 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7117 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7118 ipr_free_cmd_blks(ioa_cfg); 7119 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7120 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7121 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), 7122 ioa_cfg->cfg_table, 7123 ioa_cfg->cfg_table_dma); 7124 7125 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7126 pci_free_consistent(ioa_cfg->pdev, 7127 sizeof(struct ipr_hostrcb), 7128 ioa_cfg->hostrcb[i], 7129 ioa_cfg->hostrcb_dma[i]); 7130 } 7131 7132 ipr_free_dump(ioa_cfg); 7133 kfree(ioa_cfg->trace); 7134} 7135 7136/** 7137 * ipr_free_all_resources - Free all allocated resources for an adapter. 7138 * @ipr_cmd: ipr command struct 7139 * 7140 * This function frees all allocated resources for the 7141 * specified adapter. 7142 * 7143 * Return value: 7144 * none 7145 **/ 7146static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 7147{ 7148 struct pci_dev *pdev = ioa_cfg->pdev; 7149 7150 ENTER; 7151 free_irq(pdev->irq, ioa_cfg); 7152 iounmap(ioa_cfg->hdw_dma_regs); 7153 pci_release_regions(pdev); 7154 ipr_free_mem(ioa_cfg); 7155 scsi_host_put(ioa_cfg->host); 7156 pci_disable_device(pdev); 7157 LEAVE; 7158} 7159 7160/** 7161 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 7162 * @ioa_cfg: ioa config struct 7163 * 7164 * Return value: 7165 * 0 on success / -ENOMEM on allocation failure 7166 **/ 7167static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7168{ 7169 struct ipr_cmnd *ipr_cmd; 7170 struct ipr_ioarcb *ioarcb; 7171 dma_addr_t dma_addr; 7172 int i; 7173 7174 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 7175 sizeof(struct ipr_cmnd), 8, 0); 7176 7177 if (!ioa_cfg->ipr_cmd_pool) 7178 return -ENOMEM; 7179 7180 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7181 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 7182 7183 if (!ipr_cmd) { 7184 ipr_free_cmd_blks(ioa_cfg); 7185 return -ENOMEM; 7186 } 7187 7188 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 7189 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 7190 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 7191 7192 ioarcb = &ipr_cmd->ioarcb; 7193 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 7194 ioarcb->host_response_handle = cpu_to_be32(i << 2); 7195 ioarcb->write_ioadl_addr = 7196 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 7197 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 7198 ioarcb->ioasa_host_pci_addr = 7199 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 7200 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 7201 ipr_cmd->cmd_index = i; 7202 ipr_cmd->ioa_cfg = ioa_cfg; 7203 ipr_cmd->sense_buffer_dma = dma_addr + 7204 offsetof(struct ipr_cmnd, sense_buffer); 7205 7206 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7207 } 7208 7209 return 0; 7210} 7211 7212/** 7213 * ipr_alloc_mem - Allocate memory for an adapter 7214 * @ioa_cfg: ioa config struct 7215 * 7216 * Return value: 7217 * 0 on success / non-zero for error 7218 **/ 7219static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 7220{ 7221 struct pci_dev *pdev = ioa_cfg->pdev; 7222 int i, rc = -ENOMEM; 7223 7224 ENTER; 7225 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 7226 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); 7227 7228 if (!ioa_cfg->res_entries) 7229 goto out; 7230 7231 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) 7232 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 7233 7234 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 7235 sizeof(struct ipr_misc_cbs), 7236 &ioa_cfg->vpd_cbs_dma); 7237 7238 if (!ioa_cfg->vpd_cbs) 7239 goto out_free_res_entries; 7240 7241 if (ipr_alloc_cmd_blks(ioa_cfg)) 7242 goto out_free_vpd_cbs; 7243 7244 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 7245 sizeof(u32) * IPR_NUM_CMD_BLKS, 7246 &ioa_cfg->host_rrq_dma); 7247 7248 if (!ioa_cfg->host_rrq) 7249 goto out_ipr_free_cmd_blocks; 7250 7251 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 7252 sizeof(struct ipr_config_table), 7253 &ioa_cfg->cfg_table_dma); 7254 7255 if (!ioa_cfg->cfg_table) 7256 goto out_free_host_rrq; 7257 7258 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7259 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 7260 sizeof(struct ipr_hostrcb), 7261 &ioa_cfg->hostrcb_dma[i]); 7262 7263 if (!ioa_cfg->hostrcb[i]) 7264 goto out_free_hostrcb_dma; 7265 7266 ioa_cfg->hostrcb[i]->hostrcb_dma = 7267 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 7268 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 7269 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 7270 } 7271 7272 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 7273 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 7274 7275 if (!ioa_cfg->trace) 7276 goto out_free_hostrcb_dma; 7277 7278 rc = 0; 7279out: 7280 LEAVE; 7281 return rc; 7282 7283out_free_hostrcb_dma: 7284 while (i-- > 0) { 7285 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 7286 ioa_cfg->hostrcb[i], 7287 ioa_cfg->hostrcb_dma[i]); 7288 } 7289 pci_free_consistent(pdev, sizeof(struct ipr_config_table), 7290 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); 7291out_free_host_rrq: 7292 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7293 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7294out_ipr_free_cmd_blocks: 7295 ipr_free_cmd_blks(ioa_cfg); 7296out_free_vpd_cbs: 7297 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 7298 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7299out_free_res_entries: 7300 kfree(ioa_cfg->res_entries); 7301 goto out; 7302} 7303 7304/** 7305 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 7306 * @ioa_cfg: ioa config struct 7307 * 7308 * Return value: 7309 * none 7310 **/ 7311static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 7312{ 7313 int i; 7314 7315 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 7316 ioa_cfg->bus_attr[i].bus = i; 7317 ioa_cfg->bus_attr[i].qas_enabled = 0; 7318 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 7319 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 7320 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 7321 else 7322 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 7323 } 7324} 7325 7326/** 7327 * ipr_init_ioa_cfg - Initialize IOA config struct 7328 * @ioa_cfg: ioa config struct 7329 * @host: scsi host struct 7330 * @pdev: PCI dev struct 7331 * 7332 * Return value: 7333 * none 7334 **/ 7335static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 7336 struct Scsi_Host *host, struct pci_dev *pdev) 7337{ 7338 const struct ipr_interrupt_offsets *p; 7339 struct ipr_interrupts *t; 7340 void __iomem *base; 7341 7342 ioa_cfg->host = host; 7343 ioa_cfg->pdev = pdev; 7344 ioa_cfg->log_level = ipr_log_level; 7345 ioa_cfg->doorbell = IPR_DOORBELL; 7346 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 7347 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 7348 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 7349 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 7350 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 7351 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 7352 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 7353 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 7354 7355 INIT_LIST_HEAD(&ioa_cfg->free_q); 7356 INIT_LIST_HEAD(&ioa_cfg->pending_q); 7357 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 7358 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 7359 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 7360 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 7361 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 7362 init_waitqueue_head(&ioa_cfg->reset_wait_q); 7363 ioa_cfg->sdt_state = INACTIVE; 7364 if (ipr_enable_cache) 7365 ioa_cfg->cache_state = CACHE_ENABLED; 7366 else 7367 ioa_cfg->cache_state = CACHE_DISABLED; 7368 7369 ipr_initialize_bus_attr(ioa_cfg); 7370 7371 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 7372 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 7373 host->max_channel = IPR_MAX_BUS_TO_SCAN; 7374 host->unique_id = host->host_no; 7375 host->max_cmd_len = IPR_MAX_CDB_LEN; 7376 pci_set_drvdata(pdev, ioa_cfg); 7377 7378 p = &ioa_cfg->chip_cfg->regs; 7379 t = &ioa_cfg->regs; 7380 base = ioa_cfg->hdw_dma_regs; 7381 7382 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 7383 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 7384 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 7385 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 7386 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 7387 t->ioarrin_reg = base + p->ioarrin_reg; 7388 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 7389 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 7390 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 7391} 7392 7393/** 7394 * ipr_get_chip_cfg - Find adapter chip configuration 7395 * @dev_id: PCI device id struct 7396 * 7397 * Return value: 7398 * ptr to chip config on success / NULL on failure 7399 **/ 7400static const struct ipr_chip_cfg_t * __devinit 7401ipr_get_chip_cfg(const struct pci_device_id *dev_id) 7402{ 7403 int i; 7404 7405 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 7406 if (ipr_chip[i].vendor == dev_id->vendor && 7407 ipr_chip[i].device == dev_id->device) 7408 return ipr_chip[i].cfg; 7409 return NULL; 7410} 7411 7412/** 7413 * ipr_probe_ioa - Allocates memory and does first stage of initialization 7414 * @pdev: PCI device struct 7415 * @dev_id: PCI device id struct 7416 * 7417 * Return value: 7418 * 0 on success / non-zero on failure 7419 **/ 7420static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 7421 const struct pci_device_id *dev_id) 7422{ 7423 struct ipr_ioa_cfg *ioa_cfg; 7424 struct Scsi_Host *host; 7425 unsigned long ipr_regs_pci; 7426 void __iomem *ipr_regs; 7427 int rc = PCIBIOS_SUCCESSFUL; 7428 volatile u32 mask, uproc, interrupts; 7429 7430 ENTER; 7431 7432 if ((rc = pci_enable_device(pdev))) { 7433 dev_err(&pdev->dev, "Cannot enable adapter\n"); 7434 goto out; 7435 } 7436 7437 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 7438 7439 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 7440 7441 if (!host) { 7442 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 7443 rc = -ENOMEM; 7444 goto out_disable; 7445 } 7446 7447 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 7448 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 7449 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 7450 sata_port_info.flags, &ipr_sata_ops); 7451 7452 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); 7453 7454 if (!ioa_cfg->chip_cfg) { 7455 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 7456 dev_id->vendor, dev_id->device); 7457 goto out_scsi_host_put; 7458 } 7459 7460 if (ipr_transop_timeout) 7461 ioa_cfg->transop_timeout = ipr_transop_timeout; 7462 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 7463 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 7464 else 7465 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 7466 7467 rc = pci_read_config_byte(pdev, PCI_REVISION_ID, &ioa_cfg->revid); 7468 7469 if (rc != PCIBIOS_SUCCESSFUL) { 7470 dev_err(&pdev->dev, "Failed to read PCI revision ID\n"); 7471 rc = -EIO; 7472 goto out_scsi_host_put; 7473 } 7474 7475 ipr_regs_pci = pci_resource_start(pdev, 0); 7476 7477 rc = pci_request_regions(pdev, IPR_NAME); 7478 if (rc < 0) { 7479 dev_err(&pdev->dev, 7480 "Couldn't register memory range of registers\n"); 7481 goto out_scsi_host_put; 7482 } 7483 7484 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); 7485 7486 if (!ipr_regs) { 7487 dev_err(&pdev->dev, 7488 "Couldn't map memory range of registers\n"); 7489 rc = -ENOMEM; 7490 goto out_release_regions; 7491 } 7492 7493 ioa_cfg->hdw_dma_regs = ipr_regs; 7494 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 7495 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 7496 7497 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 7498 7499 pci_set_master(pdev); 7500 7501 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 7502 if (rc < 0) { 7503 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 7504 goto cleanup_nomem; 7505 } 7506 7507 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 7508 ioa_cfg->chip_cfg->cache_line_size); 7509 7510 if (rc != PCIBIOS_SUCCESSFUL) { 7511 dev_err(&pdev->dev, "Write of cache line size failed\n"); 7512 rc = -EIO; 7513 goto cleanup_nomem; 7514 } 7515 7516 /* Save away PCI config space for use following IOA reset */ 7517 rc = pci_save_state(pdev); 7518 7519 if (rc != PCIBIOS_SUCCESSFUL) { 7520 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 7521 rc = -EIO; 7522 goto cleanup_nomem; 7523 } 7524 7525 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 7526 goto cleanup_nomem; 7527 7528 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 7529 goto cleanup_nomem; 7530 7531 rc = ipr_alloc_mem(ioa_cfg); 7532 if (rc < 0) { 7533 dev_err(&pdev->dev, 7534 "Couldn't allocate enough memory for device driver!\n"); 7535 goto cleanup_nomem; 7536 } 7537 7538 /* 7539 * If HRRQ updated interrupt is not masked, or reset alert is set, 7540 * the card is in an unknown state and needs a hard reset 7541 */ 7542 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7543 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); 7544 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 7545 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 7546 ioa_cfg->needs_hard_reset = 1; 7547 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 7548 ioa_cfg->needs_hard_reset = 1; 7549 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 7550 ioa_cfg->ioa_unit_checked = 1; 7551 7552 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 7553 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); 7554 7555 if (rc) { 7556 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 7557 pdev->irq, rc); 7558 goto cleanup_nolog; 7559 } 7560 7561 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 7562 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 7563 ioa_cfg->needs_warm_reset = 1; 7564 ioa_cfg->reset = ipr_reset_slot_reset; 7565 } else 7566 ioa_cfg->reset = ipr_reset_start_bist; 7567 7568 spin_lock(&ipr_driver_lock); 7569 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 7570 spin_unlock(&ipr_driver_lock); 7571 7572 LEAVE; 7573out: 7574 return rc; 7575 7576cleanup_nolog: 7577 ipr_free_mem(ioa_cfg); 7578cleanup_nomem: 7579 iounmap(ipr_regs); 7580out_release_regions: 7581 pci_release_regions(pdev); 7582out_scsi_host_put: 7583 scsi_host_put(host); 7584out_disable: 7585 pci_disable_device(pdev); 7586 goto out; 7587} 7588 7589/** 7590 * ipr_scan_vsets - Scans for VSET devices 7591 * @ioa_cfg: ioa config struct 7592 * 7593 * Description: Since the VSET resources do not follow SAM in that we can have 7594 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 7595 * 7596 * Return value: 7597 * none 7598 **/ 7599static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 7600{ 7601 int target, lun; 7602 7603 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 7604 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 7605 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 7606} 7607 7608/** 7609 * ipr_initiate_ioa_bringdown - Bring down an adapter 7610 * @ioa_cfg: ioa config struct 7611 * @shutdown_type: shutdown type 7612 * 7613 * Description: This function will initiate bringing down the adapter. 7614 * This consists of issuing an IOA shutdown to the adapter 7615 * to flush the cache, and running BIST. 7616 * If the caller needs to wait on the completion of the reset, 7617 * the caller must sleep on the reset_wait_q. 7618 * 7619 * Return value: 7620 * none 7621 **/ 7622static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 7623 enum ipr_shutdown_type shutdown_type) 7624{ 7625 ENTER; 7626 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7627 ioa_cfg->sdt_state = ABORT_DUMP; 7628 ioa_cfg->reset_retries = 0; 7629 ioa_cfg->in_ioa_bringdown = 1; 7630 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 7631 LEAVE; 7632} 7633 7634/** 7635 * __ipr_remove - Remove a single adapter 7636 * @pdev: pci device struct 7637 * 7638 * Adapter hot plug remove entry point. 7639 * 7640 * Return value: 7641 * none 7642 **/ 7643static void __ipr_remove(struct pci_dev *pdev) 7644{ 7645 unsigned long host_lock_flags = 0; 7646 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7647 ENTER; 7648 7649 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7650 while(ioa_cfg->in_reset_reload) { 7651 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7652 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7653 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7654 } 7655 7656 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7657 7658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7659 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7660 flush_scheduled_work(); 7661 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7662 7663 spin_lock(&ipr_driver_lock); 7664 list_del(&ioa_cfg->queue); 7665 spin_unlock(&ipr_driver_lock); 7666 7667 if (ioa_cfg->sdt_state == ABORT_DUMP) 7668 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7669 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7670 7671 ipr_free_all_resources(ioa_cfg); 7672 7673 LEAVE; 7674} 7675 7676/** 7677 * ipr_remove - IOA hot plug remove entry point 7678 * @pdev: pci device struct 7679 * 7680 * Adapter hot plug remove entry point. 7681 * 7682 * Return value: 7683 * none 7684 **/ 7685static void ipr_remove(struct pci_dev *pdev) 7686{ 7687 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7688 7689 ENTER; 7690 7691 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7692 &ipr_trace_attr); 7693 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, 7694 &ipr_dump_attr); 7695 scsi_remove_host(ioa_cfg->host); 7696 7697 __ipr_remove(pdev); 7698 7699 LEAVE; 7700} 7701 7702/** 7703 * ipr_probe - Adapter hot plug add entry point 7704 * 7705 * Return value: 7706 * 0 on success / non-zero on failure 7707 **/ 7708static int __devinit ipr_probe(struct pci_dev *pdev, 7709 const struct pci_device_id *dev_id) 7710{ 7711 struct ipr_ioa_cfg *ioa_cfg; 7712 int rc; 7713 7714 rc = ipr_probe_ioa(pdev, dev_id); 7715 7716 if (rc) 7717 return rc; 7718 7719 ioa_cfg = pci_get_drvdata(pdev); 7720 rc = ipr_probe_ioa_part2(ioa_cfg); 7721 7722 if (rc) { 7723 __ipr_remove(pdev); 7724 return rc; 7725 } 7726 7727 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 7728 7729 if (rc) { 7730 __ipr_remove(pdev); 7731 return rc; 7732 } 7733 7734 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7735 &ipr_trace_attr); 7736 7737 if (rc) { 7738 scsi_remove_host(ioa_cfg->host); 7739 __ipr_remove(pdev); 7740 return rc; 7741 } 7742 7743 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, 7744 &ipr_dump_attr); 7745 7746 if (rc) { 7747 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7748 &ipr_trace_attr); 7749 scsi_remove_host(ioa_cfg->host); 7750 __ipr_remove(pdev); 7751 return rc; 7752 } 7753 7754 scsi_scan_host(ioa_cfg->host); 7755 ipr_scan_vsets(ioa_cfg); 7756 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 7757 ioa_cfg->allow_ml_add_del = 1; 7758 ioa_cfg->host->max_channel = IPR_VSET_BUS; 7759 schedule_work(&ioa_cfg->work_q); 7760 return 0; 7761} 7762 7763/** 7764 * ipr_shutdown - Shutdown handler. 7765 * @pdev: pci device struct 7766 * 7767 * This function is invoked upon system shutdown/reboot. It will issue 7768 * an adapter shutdown to the adapter to flush the write cache. 7769 * 7770 * Return value: 7771 * none 7772 **/ 7773static void ipr_shutdown(struct pci_dev *pdev) 7774{ 7775 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7776 unsigned long lock_flags = 0; 7777 7778 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7779 while(ioa_cfg->in_reset_reload) { 7780 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7781 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7782 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7783 } 7784 7785 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7786 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7787 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7788} 7789 7790static struct pci_device_id ipr_pci_table[] __devinitdata = { 7791 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7792 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 7793 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7794 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 7795 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7796 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 7797 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7798 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 7799 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7800 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 7801 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7802 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 7803 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7804 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 7805 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7806 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 7807 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7808 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7809 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7810 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7811 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7812 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7813 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7814 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7815 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7816 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7818 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7819 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7820 IPR_USE_LONG_TRANSOP_TIMEOUT}, 7821 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7822 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7823 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7824 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 7826 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 7829 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7830 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7831 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 7832 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7833 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 7834 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 7835 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 7836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 7837 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7838 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 7839 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7840 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 7841 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7842 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7843 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 7844 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7845 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E, 7846 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 7847 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7848 { } 7849}; 7850MODULE_DEVICE_TABLE(pci, ipr_pci_table); 7851 7852static struct pci_error_handlers ipr_err_handler = { 7853 .error_detected = ipr_pci_error_detected, 7854 .slot_reset = ipr_pci_slot_reset, 7855}; 7856 7857static struct pci_driver ipr_driver = { 7858 .name = IPR_NAME, 7859 .id_table = ipr_pci_table, 7860 .probe = ipr_probe, 7861 .remove = ipr_remove, 7862 .shutdown = ipr_shutdown, 7863 .err_handler = &ipr_err_handler, 7864 .dynids.use_driver_data = 1 7865}; 7866 7867/** 7868 * ipr_init - Module entry point 7869 * 7870 * Return value: 7871 * 0 on success / negative value on failure 7872 **/ 7873static int __init ipr_init(void) 7874{ 7875 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 7876 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 7877 7878 return pci_register_driver(&ipr_driver); 7879} 7880 7881/** 7882 * ipr_exit - Module unload 7883 * 7884 * Module unload entry point. 7885 * 7886 * Return value: 7887 * none 7888 **/ 7889static void __exit ipr_exit(void) 7890{ 7891 pci_unregister_driver(&ipr_driver); 7892} 7893 7894module_init(ipr_init); 7895module_exit(ipr_exit); 7896