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 */ 87 static struct list_head ipr_ioa_head = LIST_HEAD_INIT(ipr_ioa_head); 88 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 89 static unsigned int ipr_max_speed = 1; 90 static int ipr_testmode = 0; 91 static unsigned int ipr_fastfail = 0; 92 static unsigned int ipr_transop_timeout = 0; 93 static unsigned int ipr_enable_cache = 1; 94 static unsigned int ipr_debug = 0; 95 static unsigned int ipr_dual_ioa_raid = 1; 96 static DEFINE_SPINLOCK(ipr_driver_lock); 97 98 /* This table describes the differences between DMA controller chips */ 99 static 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 }; 131 132 static 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 }; 141 142 static int ipr_max_bus_speeds [] = { 143 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 144 }; 145 146 MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 147 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 148 module_param_named(max_speed, ipr_max_speed, uint, 0); 149 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 150 module_param_named(log_level, ipr_log_level, uint, 0); 151 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 152 module_param_named(testmode, ipr_testmode, int, 0); 153 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 154 module_param_named(fastfail, ipr_fastfail, int, 0); 155 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 156 module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 157 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 158 module_param_named(enable_cache, ipr_enable_cache, int, 0); 159 MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)"); 160 module_param_named(debug, ipr_debug, int, 0); 161 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 162 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 163 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 164 MODULE_LICENSE("GPL"); 165 MODULE_VERSION(IPR_DRIVER_VERSION); 166 167 /* A constant array of IOASCs/URCs/Error Messages */ 168 static const 169 struct 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 }; 421 422 static 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 */ 441 static int ipr_reset_alert(struct ipr_cmnd *); 442 static void ipr_process_ccn(struct ipr_cmnd *); 443 static void ipr_process_error(struct ipr_cmnd *); 444 static void ipr_reset_ioa_job(struct ipr_cmnd *); 445 static 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 **/ 458 static 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 **/ 484 static 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 **/ 515 static 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 **/ 530 static 531 struct 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 **/ 553 static 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 **/ 576 static 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 **/ 600 static 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 **/ 625 static 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 **/ 647 static 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 **/ 668 static 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 **/ 705 static 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 **/ 738 static 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 **/ 755 static 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 **/ 782 static 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 **/ 831 static 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 **/ 850 static 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 **/ 912 static 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 **/ 943 static 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 **/ 961 static 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 **/ 986 static 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 **/ 1011 static 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 **/ 1026 static 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 **/ 1041 static 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 **/ 1073 static 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 **/ 1105 static 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 **/ 1145 static 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 **/ 1192 static 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 **/ 1243 static 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 **/ 1299 static 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 **/ 1326 static 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 **/ 1352 static 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 1370 static 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 1379 static 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 **/ 1397 static 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 1438 static 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 1448 static 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 1460 static 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 **/ 1487 static 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 **/ 1554 static 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 **/ 1591 static 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 **/ 1609 static 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 **/ 1630 static 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 **/ 1715 static 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 **/ 1747 static 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 **/ 1779 static 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 **/ 1814 static 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 **/ 1841 static const struct ipr_ses_table_entry * 1842 ipr_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 **/ 1877 static 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 **/ 1910 static 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 **/ 1943 static 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 **/ 2032 static 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 **/ 2093 static 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 **/ 2109 static 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 **/ 2135 static 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 **/ 2156 static 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 **/ 2177 static 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 **/ 2198 static 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 **/ 2333 static 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 **/ 2364 static 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 2396 restart: 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 * @bin_attr: bin_attribute struct 2443 * @buf: buffer 2444 * @off: offset 2445 * @count: buffer size 2446 * 2447 * Return value: 2448 * number of bytes printed to buffer 2449 **/ 2450 static ssize_t ipr_read_trace(struct kobject *kobj, 2451 struct bin_attribute *bin_attr, 2452 char *buf, loff_t off, size_t count) 2453 { 2454 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 2455 struct Scsi_Host *shost = class_to_shost(cdev); 2456 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2457 unsigned long lock_flags = 0; 2458 int size = IPR_TRACE_SIZE; 2459 char *src = (char *)ioa_cfg->trace; 2460 2461 if (off > size) 2462 return 0; 2463 if (off + count > size) { 2464 size -= off; 2465 count = size; 2466 } 2467 2468 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2469 memcpy(buf, &src[off], count); 2470 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2471 return count; 2472 } 2473 2474 static struct bin_attribute ipr_trace_attr = { 2475 .attr = { 2476 .name = "trace", 2477 .mode = S_IRUGO, 2478 }, 2479 .size = 0, 2480 .read = ipr_read_trace, 2481 }; 2482 #endif 2483 2484 static const struct { 2485 enum ipr_cache_state state; 2486 char *name; 2487 } cache_state [] = { 2488 { CACHE_NONE, "none" }, 2489 { CACHE_DISABLED, "disabled" }, 2490 { CACHE_ENABLED, "enabled" } 2491 }; 2492 2493 /** 2494 * ipr_show_write_caching - Show the write caching attribute 2495 * @class_dev: class device struct 2496 * @buf: buffer 2497 * 2498 * Return value: 2499 * number of bytes printed to buffer 2500 **/ 2501 static ssize_t ipr_show_write_caching(struct class_device *class_dev, char *buf) 2502 { 2503 struct Scsi_Host *shost = class_to_shost(class_dev); 2504 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2505 unsigned long lock_flags = 0; 2506 int i, len = 0; 2507 2508 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2509 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2510 if (cache_state[i].state == ioa_cfg->cache_state) { 2511 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name); 2512 break; 2513 } 2514 } 2515 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2516 return len; 2517 } 2518 2519 2520 /** 2521 * ipr_store_write_caching - Enable/disable adapter write cache 2522 * @class_dev: class_device struct 2523 * @buf: buffer 2524 * @count: buffer size 2525 * 2526 * This function will enable/disable adapter write cache. 2527 * 2528 * Return value: 2529 * count on success / other on failure 2530 **/ 2531 static ssize_t ipr_store_write_caching(struct class_device *class_dev, 2532 const char *buf, size_t count) 2533 { 2534 struct Scsi_Host *shost = class_to_shost(class_dev); 2535 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2536 unsigned long lock_flags = 0; 2537 enum ipr_cache_state new_state = CACHE_INVALID; 2538 int i; 2539 2540 if (!capable(CAP_SYS_ADMIN)) 2541 return -EACCES; 2542 if (ioa_cfg->cache_state == CACHE_NONE) 2543 return -EINVAL; 2544 2545 for (i = 0; i < ARRAY_SIZE(cache_state); i++) { 2546 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) { 2547 new_state = cache_state[i].state; 2548 break; 2549 } 2550 } 2551 2552 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED) 2553 return -EINVAL; 2554 2555 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2556 if (ioa_cfg->cache_state == new_state) { 2557 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2558 return count; 2559 } 2560 2561 ioa_cfg->cache_state = new_state; 2562 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n", 2563 new_state == CACHE_ENABLED ? "Enabling" : "Disabling"); 2564 if (!ioa_cfg->in_reset_reload) 2565 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2566 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2567 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2568 2569 return count; 2570 } 2571 2572 static struct class_device_attribute ipr_ioa_cache_attr = { 2573 .attr = { 2574 .name = "write_cache", 2575 .mode = S_IRUGO | S_IWUSR, 2576 }, 2577 .show = ipr_show_write_caching, 2578 .store = ipr_store_write_caching 2579 }; 2580 2581 /** 2582 * ipr_show_fw_version - Show the firmware version 2583 * @class_dev: class device struct 2584 * @buf: buffer 2585 * 2586 * Return value: 2587 * number of bytes printed to buffer 2588 **/ 2589 static ssize_t ipr_show_fw_version(struct class_device *class_dev, char *buf) 2590 { 2591 struct Scsi_Host *shost = class_to_shost(class_dev); 2592 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2593 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2594 unsigned long lock_flags = 0; 2595 int len; 2596 2597 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2598 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 2599 ucode_vpd->major_release, ucode_vpd->card_type, 2600 ucode_vpd->minor_release[0], 2601 ucode_vpd->minor_release[1]); 2602 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2603 return len; 2604 } 2605 2606 static struct class_device_attribute ipr_fw_version_attr = { 2607 .attr = { 2608 .name = "fw_version", 2609 .mode = S_IRUGO, 2610 }, 2611 .show = ipr_show_fw_version, 2612 }; 2613 2614 /** 2615 * ipr_show_log_level - Show the adapter's error logging level 2616 * @class_dev: class device struct 2617 * @buf: buffer 2618 * 2619 * Return value: 2620 * number of bytes printed to buffer 2621 **/ 2622 static ssize_t ipr_show_log_level(struct class_device *class_dev, char *buf) 2623 { 2624 struct Scsi_Host *shost = class_to_shost(class_dev); 2625 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2626 unsigned long lock_flags = 0; 2627 int len; 2628 2629 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2630 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 2631 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2632 return len; 2633 } 2634 2635 /** 2636 * ipr_store_log_level - Change the adapter's error logging level 2637 * @class_dev: class device struct 2638 * @buf: buffer 2639 * 2640 * Return value: 2641 * number of bytes printed to buffer 2642 **/ 2643 static ssize_t ipr_store_log_level(struct class_device *class_dev, 2644 const char *buf, size_t count) 2645 { 2646 struct Scsi_Host *shost = class_to_shost(class_dev); 2647 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2648 unsigned long lock_flags = 0; 2649 2650 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2651 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 2652 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2653 return strlen(buf); 2654 } 2655 2656 static struct class_device_attribute ipr_log_level_attr = { 2657 .attr = { 2658 .name = "log_level", 2659 .mode = S_IRUGO | S_IWUSR, 2660 }, 2661 .show = ipr_show_log_level, 2662 .store = ipr_store_log_level 2663 }; 2664 2665 /** 2666 * ipr_store_diagnostics - IOA Diagnostics interface 2667 * @class_dev: class_device struct 2668 * @buf: buffer 2669 * @count: buffer size 2670 * 2671 * This function will reset the adapter and wait a reasonable 2672 * amount of time for any errors that the adapter might log. 2673 * 2674 * Return value: 2675 * count on success / other on failure 2676 **/ 2677 static ssize_t ipr_store_diagnostics(struct class_device *class_dev, 2678 const char *buf, size_t count) 2679 { 2680 struct Scsi_Host *shost = class_to_shost(class_dev); 2681 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2682 unsigned long lock_flags = 0; 2683 int rc = count; 2684 2685 if (!capable(CAP_SYS_ADMIN)) 2686 return -EACCES; 2687 2688 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2689 while(ioa_cfg->in_reset_reload) { 2690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2691 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2692 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2693 } 2694 2695 ioa_cfg->errors_logged = 0; 2696 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2697 2698 if (ioa_cfg->in_reset_reload) { 2699 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2700 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2701 2702 /* Wait for a second for any errors to be logged */ 2703 msleep(1000); 2704 } else { 2705 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2706 return -EIO; 2707 } 2708 2709 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2710 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 2711 rc = -EIO; 2712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2713 2714 return rc; 2715 } 2716 2717 static struct class_device_attribute ipr_diagnostics_attr = { 2718 .attr = { 2719 .name = "run_diagnostics", 2720 .mode = S_IWUSR, 2721 }, 2722 .store = ipr_store_diagnostics 2723 }; 2724 2725 /** 2726 * ipr_show_adapter_state - Show the adapter's state 2727 * @class_dev: class device struct 2728 * @buf: buffer 2729 * 2730 * Return value: 2731 * number of bytes printed to buffer 2732 **/ 2733 static ssize_t ipr_show_adapter_state(struct class_device *class_dev, char *buf) 2734 { 2735 struct Scsi_Host *shost = class_to_shost(class_dev); 2736 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2737 unsigned long lock_flags = 0; 2738 int len; 2739 2740 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2741 if (ioa_cfg->ioa_is_dead) 2742 len = snprintf(buf, PAGE_SIZE, "offline\n"); 2743 else 2744 len = snprintf(buf, PAGE_SIZE, "online\n"); 2745 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2746 return len; 2747 } 2748 2749 /** 2750 * ipr_store_adapter_state - Change adapter state 2751 * @class_dev: class_device struct 2752 * @buf: buffer 2753 * @count: buffer size 2754 * 2755 * This function will change the adapter's state. 2756 * 2757 * Return value: 2758 * count on success / other on failure 2759 **/ 2760 static ssize_t ipr_store_adapter_state(struct class_device *class_dev, 2761 const char *buf, size_t count) 2762 { 2763 struct Scsi_Host *shost = class_to_shost(class_dev); 2764 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2765 unsigned long lock_flags; 2766 int result = count; 2767 2768 if (!capable(CAP_SYS_ADMIN)) 2769 return -EACCES; 2770 2771 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2772 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 2773 ioa_cfg->ioa_is_dead = 0; 2774 ioa_cfg->reset_retries = 0; 2775 ioa_cfg->in_ioa_bringdown = 0; 2776 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2777 } 2778 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2779 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2780 2781 return result; 2782 } 2783 2784 static struct class_device_attribute ipr_ioa_state_attr = { 2785 .attr = { 2786 .name = "state", 2787 .mode = S_IRUGO | S_IWUSR, 2788 }, 2789 .show = ipr_show_adapter_state, 2790 .store = ipr_store_adapter_state 2791 }; 2792 2793 /** 2794 * ipr_store_reset_adapter - Reset the adapter 2795 * @class_dev: class_device struct 2796 * @buf: buffer 2797 * @count: buffer size 2798 * 2799 * This function will reset the adapter. 2800 * 2801 * Return value: 2802 * count on success / other on failure 2803 **/ 2804 static ssize_t ipr_store_reset_adapter(struct class_device *class_dev, 2805 const char *buf, size_t count) 2806 { 2807 struct Scsi_Host *shost = class_to_shost(class_dev); 2808 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 2809 unsigned long lock_flags; 2810 int result = count; 2811 2812 if (!capable(CAP_SYS_ADMIN)) 2813 return -EACCES; 2814 2815 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2816 if (!ioa_cfg->in_reset_reload) 2817 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 2818 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2819 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2820 2821 return result; 2822 } 2823 2824 static struct class_device_attribute ipr_ioa_reset_attr = { 2825 .attr = { 2826 .name = "reset_host", 2827 .mode = S_IWUSR, 2828 }, 2829 .store = ipr_store_reset_adapter 2830 }; 2831 2832 /** 2833 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 2834 * @buf_len: buffer length 2835 * 2836 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 2837 * list to use for microcode download 2838 * 2839 * Return value: 2840 * pointer to sglist / NULL on failure 2841 **/ 2842 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 2843 { 2844 int sg_size, order, bsize_elem, num_elem, i, j; 2845 struct ipr_sglist *sglist; 2846 struct scatterlist *scatterlist; 2847 struct page *page; 2848 2849 /* Get the minimum size per scatter/gather element */ 2850 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 2851 2852 /* Get the actual size per element */ 2853 order = get_order(sg_size); 2854 2855 /* Determine the actual number of bytes per element */ 2856 bsize_elem = PAGE_SIZE * (1 << order); 2857 2858 /* Determine the actual number of sg entries needed */ 2859 if (buf_len % bsize_elem) 2860 num_elem = (buf_len / bsize_elem) + 1; 2861 else 2862 num_elem = buf_len / bsize_elem; 2863 2864 /* Allocate a scatter/gather list for the DMA */ 2865 sglist = kzalloc(sizeof(struct ipr_sglist) + 2866 (sizeof(struct scatterlist) * (num_elem - 1)), 2867 GFP_KERNEL); 2868 2869 if (sglist == NULL) { 2870 ipr_trace; 2871 return NULL; 2872 } 2873 2874 scatterlist = sglist->scatterlist; 2875 sg_init_table(scatterlist, num_elem); 2876 2877 sglist->order = order; 2878 sglist->num_sg = num_elem; 2879 2880 /* Allocate a bunch of sg elements */ 2881 for (i = 0; i < num_elem; i++) { 2882 page = alloc_pages(GFP_KERNEL, order); 2883 if (!page) { 2884 ipr_trace; 2885 2886 /* Free up what we already allocated */ 2887 for (j = i - 1; j >= 0; j--) 2888 __free_pages(sg_page(&scatterlist[j]), order); 2889 kfree(sglist); 2890 return NULL; 2891 } 2892 2893 sg_set_page(&scatterlist[i], page, 0, 0); 2894 } 2895 2896 return sglist; 2897 } 2898 2899 /** 2900 * ipr_free_ucode_buffer - Frees a microcode download buffer 2901 * @p_dnld: scatter/gather list pointer 2902 * 2903 * Free a DMA'able ucode download buffer previously allocated with 2904 * ipr_alloc_ucode_buffer 2905 * 2906 * Return value: 2907 * nothing 2908 **/ 2909 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 2910 { 2911 int i; 2912 2913 for (i = 0; i < sglist->num_sg; i++) 2914 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 2915 2916 kfree(sglist); 2917 } 2918 2919 /** 2920 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 2921 * @sglist: scatter/gather list pointer 2922 * @buffer: buffer pointer 2923 * @len: buffer length 2924 * 2925 * Copy a microcode image from a user buffer into a buffer allocated by 2926 * ipr_alloc_ucode_buffer 2927 * 2928 * Return value: 2929 * 0 on success / other on failure 2930 **/ 2931 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 2932 u8 *buffer, u32 len) 2933 { 2934 int bsize_elem, i, result = 0; 2935 struct scatterlist *scatterlist; 2936 void *kaddr; 2937 2938 /* Determine the actual number of bytes per element */ 2939 bsize_elem = PAGE_SIZE * (1 << sglist->order); 2940 2941 scatterlist = sglist->scatterlist; 2942 2943 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 2944 struct page *page = sg_page(&scatterlist[i]); 2945 2946 kaddr = kmap(page); 2947 memcpy(kaddr, buffer, bsize_elem); 2948 kunmap(page); 2949 2950 scatterlist[i].length = bsize_elem; 2951 2952 if (result != 0) { 2953 ipr_trace; 2954 return result; 2955 } 2956 } 2957 2958 if (len % bsize_elem) { 2959 struct page *page = sg_page(&scatterlist[i]); 2960 2961 kaddr = kmap(page); 2962 memcpy(kaddr, buffer, len % bsize_elem); 2963 kunmap(page); 2964 2965 scatterlist[i].length = len % bsize_elem; 2966 } 2967 2968 sglist->buffer_len = len; 2969 return result; 2970 } 2971 2972 /** 2973 * ipr_build_ucode_ioadl - Build a microcode download IOADL 2974 * @ipr_cmd: ipr command struct 2975 * @sglist: scatter/gather list 2976 * 2977 * Builds a microcode download IOA data list (IOADL). 2978 * 2979 **/ 2980 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 2981 struct ipr_sglist *sglist) 2982 { 2983 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 2984 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 2985 struct scatterlist *scatterlist = sglist->scatterlist; 2986 int i; 2987 2988 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 2989 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 2990 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len); 2991 ioarcb->write_ioadl_len = 2992 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 2993 2994 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 2995 ioadl[i].flags_and_data_len = 2996 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 2997 ioadl[i].address = 2998 cpu_to_be32(sg_dma_address(&scatterlist[i])); 2999 } 3000 3001 ioadl[i-1].flags_and_data_len |= 3002 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3003 } 3004 3005 /** 3006 * ipr_update_ioa_ucode - Update IOA's microcode 3007 * @ioa_cfg: ioa config struct 3008 * @sglist: scatter/gather list 3009 * 3010 * Initiate an adapter reset to update the IOA's microcode 3011 * 3012 * Return value: 3013 * 0 on success / -EIO on failure 3014 **/ 3015 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3016 struct ipr_sglist *sglist) 3017 { 3018 unsigned long lock_flags; 3019 3020 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3021 while(ioa_cfg->in_reset_reload) { 3022 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3023 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3025 } 3026 3027 if (ioa_cfg->ucode_sglist) { 3028 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3029 dev_err(&ioa_cfg->pdev->dev, 3030 "Microcode download already in progress\n"); 3031 return -EIO; 3032 } 3033 3034 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3035 sglist->num_sg, DMA_TO_DEVICE); 3036 3037 if (!sglist->num_dma_sg) { 3038 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3039 dev_err(&ioa_cfg->pdev->dev, 3040 "Failed to map microcode download buffer!\n"); 3041 return -EIO; 3042 } 3043 3044 ioa_cfg->ucode_sglist = sglist; 3045 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3046 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3047 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3048 3049 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3050 ioa_cfg->ucode_sglist = NULL; 3051 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3052 return 0; 3053 } 3054 3055 /** 3056 * ipr_store_update_fw - Update the firmware on the adapter 3057 * @class_dev: class_device struct 3058 * @buf: buffer 3059 * @count: buffer size 3060 * 3061 * This function will update the firmware on the adapter. 3062 * 3063 * Return value: 3064 * count on success / other on failure 3065 **/ 3066 static ssize_t ipr_store_update_fw(struct class_device *class_dev, 3067 const char *buf, size_t count) 3068 { 3069 struct Scsi_Host *shost = class_to_shost(class_dev); 3070 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3071 struct ipr_ucode_image_header *image_hdr; 3072 const struct firmware *fw_entry; 3073 struct ipr_sglist *sglist; 3074 char fname[100]; 3075 char *src; 3076 int len, result, dnld_size; 3077 3078 if (!capable(CAP_SYS_ADMIN)) 3079 return -EACCES; 3080 3081 len = snprintf(fname, 99, "%s", buf); 3082 fname[len-1] = '\0'; 3083 3084 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3085 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3086 return -EIO; 3087 } 3088 3089 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3090 3091 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3092 (ioa_cfg->vpd_cbs->page3_data.card_type && 3093 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3094 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3095 release_firmware(fw_entry); 3096 return -EINVAL; 3097 } 3098 3099 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3100 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3101 sglist = ipr_alloc_ucode_buffer(dnld_size); 3102 3103 if (!sglist) { 3104 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3105 release_firmware(fw_entry); 3106 return -ENOMEM; 3107 } 3108 3109 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3110 3111 if (result) { 3112 dev_err(&ioa_cfg->pdev->dev, 3113 "Microcode buffer copy to DMA buffer failed\n"); 3114 goto out; 3115 } 3116 3117 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3118 3119 if (!result) 3120 result = count; 3121 out: 3122 ipr_free_ucode_buffer(sglist); 3123 release_firmware(fw_entry); 3124 return result; 3125 } 3126 3127 static struct class_device_attribute ipr_update_fw_attr = { 3128 .attr = { 3129 .name = "update_fw", 3130 .mode = S_IWUSR, 3131 }, 3132 .store = ipr_store_update_fw 3133 }; 3134 3135 static struct class_device_attribute *ipr_ioa_attrs[] = { 3136 &ipr_fw_version_attr, 3137 &ipr_log_level_attr, 3138 &ipr_diagnostics_attr, 3139 &ipr_ioa_state_attr, 3140 &ipr_ioa_reset_attr, 3141 &ipr_update_fw_attr, 3142 &ipr_ioa_cache_attr, 3143 NULL, 3144 }; 3145 3146 #ifdef CONFIG_SCSI_IPR_DUMP 3147 /** 3148 * ipr_read_dump - Dump the adapter 3149 * @kobj: kobject struct 3150 * @bin_attr: bin_attribute struct 3151 * @buf: buffer 3152 * @off: offset 3153 * @count: buffer size 3154 * 3155 * Return value: 3156 * number of bytes printed to buffer 3157 **/ 3158 static ssize_t ipr_read_dump(struct kobject *kobj, 3159 struct bin_attribute *bin_attr, 3160 char *buf, loff_t off, size_t count) 3161 { 3162 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 3163 struct Scsi_Host *shost = class_to_shost(cdev); 3164 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3165 struct ipr_dump *dump; 3166 unsigned long lock_flags = 0; 3167 char *src; 3168 int len; 3169 size_t rc = count; 3170 3171 if (!capable(CAP_SYS_ADMIN)) 3172 return -EACCES; 3173 3174 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3175 dump = ioa_cfg->dump; 3176 3177 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3178 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3179 return 0; 3180 } 3181 kref_get(&dump->kref); 3182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3183 3184 if (off > dump->driver_dump.hdr.len) { 3185 kref_put(&dump->kref, ipr_release_dump); 3186 return 0; 3187 } 3188 3189 if (off + count > dump->driver_dump.hdr.len) { 3190 count = dump->driver_dump.hdr.len - off; 3191 rc = count; 3192 } 3193 3194 if (count && off < sizeof(dump->driver_dump)) { 3195 if (off + count > sizeof(dump->driver_dump)) 3196 len = sizeof(dump->driver_dump) - off; 3197 else 3198 len = count; 3199 src = (u8 *)&dump->driver_dump + off; 3200 memcpy(buf, src, len); 3201 buf += len; 3202 off += len; 3203 count -= len; 3204 } 3205 3206 off -= sizeof(dump->driver_dump); 3207 3208 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3209 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3210 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3211 else 3212 len = count; 3213 src = (u8 *)&dump->ioa_dump + off; 3214 memcpy(buf, src, len); 3215 buf += len; 3216 off += len; 3217 count -= len; 3218 } 3219 3220 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3221 3222 while (count) { 3223 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3224 len = PAGE_ALIGN(off) - off; 3225 else 3226 len = count; 3227 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3228 src += off & ~PAGE_MASK; 3229 memcpy(buf, src, len); 3230 buf += len; 3231 off += len; 3232 count -= len; 3233 } 3234 3235 kref_put(&dump->kref, ipr_release_dump); 3236 return rc; 3237 } 3238 3239 /** 3240 * ipr_alloc_dump - Prepare for adapter dump 3241 * @ioa_cfg: ioa config struct 3242 * 3243 * Return value: 3244 * 0 on success / other on failure 3245 **/ 3246 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3247 { 3248 struct ipr_dump *dump; 3249 unsigned long lock_flags = 0; 3250 3251 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3252 3253 if (!dump) { 3254 ipr_err("Dump memory allocation failed\n"); 3255 return -ENOMEM; 3256 } 3257 3258 kref_init(&dump->kref); 3259 dump->ioa_cfg = ioa_cfg; 3260 3261 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3262 3263 if (INACTIVE != ioa_cfg->sdt_state) { 3264 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3265 kfree(dump); 3266 return 0; 3267 } 3268 3269 ioa_cfg->dump = dump; 3270 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3271 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3272 ioa_cfg->dump_taken = 1; 3273 schedule_work(&ioa_cfg->work_q); 3274 } 3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3276 3277 return 0; 3278 } 3279 3280 /** 3281 * ipr_free_dump - Free adapter dump memory 3282 * @ioa_cfg: ioa config struct 3283 * 3284 * Return value: 3285 * 0 on success / other on failure 3286 **/ 3287 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3288 { 3289 struct ipr_dump *dump; 3290 unsigned long lock_flags = 0; 3291 3292 ENTER; 3293 3294 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3295 dump = ioa_cfg->dump; 3296 if (!dump) { 3297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3298 return 0; 3299 } 3300 3301 ioa_cfg->dump = NULL; 3302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3303 3304 kref_put(&dump->kref, ipr_release_dump); 3305 3306 LEAVE; 3307 return 0; 3308 } 3309 3310 /** 3311 * ipr_write_dump - Setup dump state of adapter 3312 * @kobj: kobject struct 3313 * @bin_attr: bin_attribute struct 3314 * @buf: buffer 3315 * @off: offset 3316 * @count: buffer size 3317 * 3318 * Return value: 3319 * number of bytes printed to buffer 3320 **/ 3321 static ssize_t ipr_write_dump(struct kobject *kobj, 3322 struct bin_attribute *bin_attr, 3323 char *buf, loff_t off, size_t count) 3324 { 3325 struct class_device *cdev = container_of(kobj,struct class_device,kobj); 3326 struct Scsi_Host *shost = class_to_shost(cdev); 3327 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3328 int rc; 3329 3330 if (!capable(CAP_SYS_ADMIN)) 3331 return -EACCES; 3332 3333 if (buf[0] == '1') 3334 rc = ipr_alloc_dump(ioa_cfg); 3335 else if (buf[0] == '0') 3336 rc = ipr_free_dump(ioa_cfg); 3337 else 3338 return -EINVAL; 3339 3340 if (rc) 3341 return rc; 3342 else 3343 return count; 3344 } 3345 3346 static struct bin_attribute ipr_dump_attr = { 3347 .attr = { 3348 .name = "dump", 3349 .mode = S_IRUSR | S_IWUSR, 3350 }, 3351 .size = 0, 3352 .read = ipr_read_dump, 3353 .write = ipr_write_dump 3354 }; 3355 #else 3356 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3357 #endif 3358 3359 /** 3360 * ipr_change_queue_depth - Change the device's queue depth 3361 * @sdev: scsi device struct 3362 * @qdepth: depth to set 3363 * 3364 * Return value: 3365 * actual depth set 3366 **/ 3367 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) 3368 { 3369 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3370 struct ipr_resource_entry *res; 3371 unsigned long lock_flags = 0; 3372 3373 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3374 res = (struct ipr_resource_entry *)sdev->hostdata; 3375 3376 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 3377 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 3378 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3379 3380 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 3381 return sdev->queue_depth; 3382 } 3383 3384 /** 3385 * ipr_change_queue_type - Change the device's queue type 3386 * @dsev: scsi device struct 3387 * @tag_type: type of tags to use 3388 * 3389 * Return value: 3390 * actual queue type set 3391 **/ 3392 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 3393 { 3394 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3395 struct ipr_resource_entry *res; 3396 unsigned long lock_flags = 0; 3397 3398 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3399 res = (struct ipr_resource_entry *)sdev->hostdata; 3400 3401 if (res) { 3402 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 3403 /* 3404 * We don't bother quiescing the device here since the 3405 * adapter firmware does it for us. 3406 */ 3407 scsi_set_tag_type(sdev, tag_type); 3408 3409 if (tag_type) 3410 scsi_activate_tcq(sdev, sdev->queue_depth); 3411 else 3412 scsi_deactivate_tcq(sdev, sdev->queue_depth); 3413 } else 3414 tag_type = 0; 3415 } else 3416 tag_type = 0; 3417 3418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3419 return tag_type; 3420 } 3421 3422 /** 3423 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 3424 * @dev: device struct 3425 * @buf: buffer 3426 * 3427 * Return value: 3428 * number of bytes printed to buffer 3429 **/ 3430 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 3431 { 3432 struct scsi_device *sdev = to_scsi_device(dev); 3433 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3434 struct ipr_resource_entry *res; 3435 unsigned long lock_flags = 0; 3436 ssize_t len = -ENXIO; 3437 3438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3439 res = (struct ipr_resource_entry *)sdev->hostdata; 3440 if (res) 3441 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle); 3442 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3443 return len; 3444 } 3445 3446 static struct device_attribute ipr_adapter_handle_attr = { 3447 .attr = { 3448 .name = "adapter_handle", 3449 .mode = S_IRUSR, 3450 }, 3451 .show = ipr_show_adapter_handle 3452 }; 3453 3454 static struct device_attribute *ipr_dev_attrs[] = { 3455 &ipr_adapter_handle_attr, 3456 NULL, 3457 }; 3458 3459 /** 3460 * ipr_biosparam - Return the HSC mapping 3461 * @sdev: scsi device struct 3462 * @block_device: block device pointer 3463 * @capacity: capacity of the device 3464 * @parm: Array containing returned HSC values. 3465 * 3466 * This function generates the HSC parms that fdisk uses. 3467 * We want to make sure we return something that places partitions 3468 * on 4k boundaries for best performance with the IOA. 3469 * 3470 * Return value: 3471 * 0 on success 3472 **/ 3473 static int ipr_biosparam(struct scsi_device *sdev, 3474 struct block_device *block_device, 3475 sector_t capacity, int *parm) 3476 { 3477 int heads, sectors; 3478 sector_t cylinders; 3479 3480 heads = 128; 3481 sectors = 32; 3482 3483 cylinders = capacity; 3484 sector_div(cylinders, (128 * 32)); 3485 3486 /* return result */ 3487 parm[0] = heads; 3488 parm[1] = sectors; 3489 parm[2] = cylinders; 3490 3491 return 0; 3492 } 3493 3494 /** 3495 * ipr_find_starget - Find target based on bus/target. 3496 * @starget: scsi target struct 3497 * 3498 * Return value: 3499 * resource entry pointer if found / NULL if not found 3500 **/ 3501 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 3502 { 3503 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3504 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3505 struct ipr_resource_entry *res; 3506 3507 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3508 if ((res->cfgte.res_addr.bus == starget->channel) && 3509 (res->cfgte.res_addr.target == starget->id) && 3510 (res->cfgte.res_addr.lun == 0)) { 3511 return res; 3512 } 3513 } 3514 3515 return NULL; 3516 } 3517 3518 static struct ata_port_info sata_port_info; 3519 3520 /** 3521 * ipr_target_alloc - Prepare for commands to a SCSI target 3522 * @starget: scsi target struct 3523 * 3524 * If the device is a SATA device, this function allocates an 3525 * ATA port with libata, else it does nothing. 3526 * 3527 * Return value: 3528 * 0 on success / non-0 on failure 3529 **/ 3530 static int ipr_target_alloc(struct scsi_target *starget) 3531 { 3532 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 3533 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 3534 struct ipr_sata_port *sata_port; 3535 struct ata_port *ap; 3536 struct ipr_resource_entry *res; 3537 unsigned long lock_flags; 3538 3539 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3540 res = ipr_find_starget(starget); 3541 starget->hostdata = NULL; 3542 3543 if (res && ipr_is_gata(res)) { 3544 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3545 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 3546 if (!sata_port) 3547 return -ENOMEM; 3548 3549 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 3550 if (ap) { 3551 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3552 sata_port->ioa_cfg = ioa_cfg; 3553 sata_port->ap = ap; 3554 sata_port->res = res; 3555 3556 res->sata_port = sata_port; 3557 ap->private_data = sata_port; 3558 starget->hostdata = sata_port; 3559 } else { 3560 kfree(sata_port); 3561 return -ENOMEM; 3562 } 3563 } 3564 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3565 3566 return 0; 3567 } 3568 3569 /** 3570 * ipr_target_destroy - Destroy a SCSI target 3571 * @starget: scsi target struct 3572 * 3573 * If the device was a SATA device, this function frees the libata 3574 * ATA port, else it does nothing. 3575 * 3576 **/ 3577 static void ipr_target_destroy(struct scsi_target *starget) 3578 { 3579 struct ipr_sata_port *sata_port = starget->hostdata; 3580 3581 if (sata_port) { 3582 starget->hostdata = NULL; 3583 ata_sas_port_destroy(sata_port->ap); 3584 kfree(sata_port); 3585 } 3586 } 3587 3588 /** 3589 * ipr_find_sdev - Find device based on bus/target/lun. 3590 * @sdev: scsi device struct 3591 * 3592 * Return value: 3593 * resource entry pointer if found / NULL if not found 3594 **/ 3595 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 3596 { 3597 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3598 struct ipr_resource_entry *res; 3599 3600 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3601 if ((res->cfgte.res_addr.bus == sdev->channel) && 3602 (res->cfgte.res_addr.target == sdev->id) && 3603 (res->cfgte.res_addr.lun == sdev->lun)) 3604 return res; 3605 } 3606 3607 return NULL; 3608 } 3609 3610 /** 3611 * ipr_slave_destroy - Unconfigure a SCSI device 3612 * @sdev: scsi device struct 3613 * 3614 * Return value: 3615 * nothing 3616 **/ 3617 static void ipr_slave_destroy(struct scsi_device *sdev) 3618 { 3619 struct ipr_resource_entry *res; 3620 struct ipr_ioa_cfg *ioa_cfg; 3621 unsigned long lock_flags = 0; 3622 3623 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3624 3625 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3626 res = (struct ipr_resource_entry *) sdev->hostdata; 3627 if (res) { 3628 if (res->sata_port) 3629 ata_port_disable(res->sata_port->ap); 3630 sdev->hostdata = NULL; 3631 res->sdev = NULL; 3632 res->sata_port = NULL; 3633 } 3634 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3635 } 3636 3637 /** 3638 * ipr_slave_configure - Configure a SCSI device 3639 * @sdev: scsi device struct 3640 * 3641 * This function configures the specified scsi device. 3642 * 3643 * Return value: 3644 * 0 on success 3645 **/ 3646 static int ipr_slave_configure(struct scsi_device *sdev) 3647 { 3648 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3649 struct ipr_resource_entry *res; 3650 unsigned long lock_flags = 0; 3651 3652 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3653 res = sdev->hostdata; 3654 if (res) { 3655 if (ipr_is_af_dasd_device(res)) 3656 sdev->type = TYPE_RAID; 3657 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 3658 sdev->scsi_level = 4; 3659 sdev->no_uld_attach = 1; 3660 } 3661 if (ipr_is_vset_device(res)) { 3662 sdev->timeout = IPR_VSET_RW_TIMEOUT; 3663 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 3664 } 3665 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 3666 sdev->allow_restart = 1; 3667 if (ipr_is_gata(res) && res->sata_port) { 3668 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 3669 ata_sas_slave_configure(sdev, res->sata_port->ap); 3670 } else { 3671 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 3672 } 3673 } 3674 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3675 return 0; 3676 } 3677 3678 /** 3679 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 3680 * @sdev: scsi device struct 3681 * 3682 * This function initializes an ATA port so that future commands 3683 * sent through queuecommand will work. 3684 * 3685 * Return value: 3686 * 0 on success 3687 **/ 3688 static int ipr_ata_slave_alloc(struct scsi_device *sdev) 3689 { 3690 struct ipr_sata_port *sata_port = NULL; 3691 int rc = -ENXIO; 3692 3693 ENTER; 3694 if (sdev->sdev_target) 3695 sata_port = sdev->sdev_target->hostdata; 3696 if (sata_port) 3697 rc = ata_sas_port_init(sata_port->ap); 3698 if (rc) 3699 ipr_slave_destroy(sdev); 3700 3701 LEAVE; 3702 return rc; 3703 } 3704 3705 /** 3706 * ipr_slave_alloc - Prepare for commands to a device. 3707 * @sdev: scsi device struct 3708 * 3709 * This function saves a pointer to the resource entry 3710 * in the scsi device struct if the device exists. We 3711 * can then use this pointer in ipr_queuecommand when 3712 * handling new commands. 3713 * 3714 * Return value: 3715 * 0 on success / -ENXIO if device does not exist 3716 **/ 3717 static int ipr_slave_alloc(struct scsi_device *sdev) 3718 { 3719 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 3720 struct ipr_resource_entry *res; 3721 unsigned long lock_flags; 3722 int rc = -ENXIO; 3723 3724 sdev->hostdata = NULL; 3725 3726 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3727 3728 res = ipr_find_sdev(sdev); 3729 if (res) { 3730 res->sdev = sdev; 3731 res->add_to_ml = 0; 3732 res->in_erp = 0; 3733 sdev->hostdata = res; 3734 if (!ipr_is_naca_model(res)) 3735 res->needs_sync_complete = 1; 3736 rc = 0; 3737 if (ipr_is_gata(res)) { 3738 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3739 return ipr_ata_slave_alloc(sdev); 3740 } 3741 } 3742 3743 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3744 3745 return rc; 3746 } 3747 3748 /** 3749 * ipr_eh_host_reset - Reset the host adapter 3750 * @scsi_cmd: scsi command struct 3751 * 3752 * Return value: 3753 * SUCCESS / FAILED 3754 **/ 3755 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 3756 { 3757 struct ipr_ioa_cfg *ioa_cfg; 3758 int rc; 3759 3760 ENTER; 3761 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3762 3763 dev_err(&ioa_cfg->pdev->dev, 3764 "Adapter being reset as a result of error recovery.\n"); 3765 3766 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 3767 ioa_cfg->sdt_state = GET_DUMP; 3768 3769 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 3770 3771 LEAVE; 3772 return rc; 3773 } 3774 3775 static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 3776 { 3777 int rc; 3778 3779 spin_lock_irq(cmd->device->host->host_lock); 3780 rc = __ipr_eh_host_reset(cmd); 3781 spin_unlock_irq(cmd->device->host->host_lock); 3782 3783 return rc; 3784 } 3785 3786 /** 3787 * ipr_device_reset - Reset the device 3788 * @ioa_cfg: ioa config struct 3789 * @res: resource entry struct 3790 * 3791 * This function issues a device reset to the affected device. 3792 * If the device is a SCSI device, a LUN reset will be sent 3793 * to the device first. If that does not work, a target reset 3794 * will be sent. If the device is a SATA device, a PHY reset will 3795 * be sent. 3796 * 3797 * Return value: 3798 * 0 on success / non-zero on failure 3799 **/ 3800 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 3801 struct ipr_resource_entry *res) 3802 { 3803 struct ipr_cmnd *ipr_cmd; 3804 struct ipr_ioarcb *ioarcb; 3805 struct ipr_cmd_pkt *cmd_pkt; 3806 struct ipr_ioarcb_ata_regs *regs; 3807 u32 ioasc; 3808 3809 ENTER; 3810 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 3811 ioarcb = &ipr_cmd->ioarcb; 3812 cmd_pkt = &ioarcb->cmd_pkt; 3813 regs = &ioarcb->add_data.u.regs; 3814 3815 ioarcb->res_handle = res->cfgte.res_handle; 3816 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 3817 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 3818 if (ipr_is_gata(res)) { 3819 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 3820 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags)); 3821 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 3822 } 3823 3824 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 3825 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 3826 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 3827 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) 3828 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 3829 sizeof(struct ipr_ioasa_gata)); 3830 3831 LEAVE; 3832 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 3833 } 3834 3835 /** 3836 * ipr_sata_reset - Reset the SATA port 3837 * @link: SATA link to reset 3838 * @classes: class of the attached device 3839 * 3840 * This function issues a SATA phy reset to the affected ATA link. 3841 * 3842 * Return value: 3843 * 0 on success / non-zero on failure 3844 **/ 3845 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 3846 unsigned long deadline) 3847 { 3848 struct ipr_sata_port *sata_port = link->ap->private_data; 3849 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 3850 struct ipr_resource_entry *res; 3851 unsigned long lock_flags = 0; 3852 int rc = -ENXIO; 3853 3854 ENTER; 3855 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3856 while(ioa_cfg->in_reset_reload) { 3857 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3858 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3859 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3860 } 3861 3862 res = sata_port->res; 3863 if (res) { 3864 rc = ipr_device_reset(ioa_cfg, res); 3865 switch(res->cfgte.proto) { 3866 case IPR_PROTO_SATA: 3867 case IPR_PROTO_SAS_STP: 3868 *classes = ATA_DEV_ATA; 3869 break; 3870 case IPR_PROTO_SATA_ATAPI: 3871 case IPR_PROTO_SAS_STP_ATAPI: 3872 *classes = ATA_DEV_ATAPI; 3873 break; 3874 default: 3875 *classes = ATA_DEV_UNKNOWN; 3876 break; 3877 }; 3878 } 3879 3880 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3881 LEAVE; 3882 return rc; 3883 } 3884 3885 /** 3886 * ipr_eh_dev_reset - Reset the device 3887 * @scsi_cmd: scsi command struct 3888 * 3889 * This function issues a device reset to the affected device. 3890 * A LUN reset will be sent to the device first. If that does 3891 * not work, a target reset will be sent. 3892 * 3893 * Return value: 3894 * SUCCESS / FAILED 3895 **/ 3896 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 3897 { 3898 struct ipr_cmnd *ipr_cmd; 3899 struct ipr_ioa_cfg *ioa_cfg; 3900 struct ipr_resource_entry *res; 3901 struct ata_port *ap; 3902 int rc = 0; 3903 3904 ENTER; 3905 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 3906 res = scsi_cmd->device->hostdata; 3907 3908 if (!res) 3909 return FAILED; 3910 3911 /* 3912 * If we are currently going through reset/reload, return failed. This will force the 3913 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 3914 * reset to complete 3915 */ 3916 if (ioa_cfg->in_reset_reload) 3917 return FAILED; 3918 if (ioa_cfg->ioa_is_dead) 3919 return FAILED; 3920 3921 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 3922 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { 3923 if (ipr_cmd->scsi_cmd) 3924 ipr_cmd->done = ipr_scsi_eh_done; 3925 if (ipr_cmd->qc) 3926 ipr_cmd->done = ipr_sata_eh_done; 3927 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 3928 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 3929 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 3930 } 3931 } 3932 } 3933 3934 res->resetting_device = 1; 3935 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 3936 3937 if (ipr_is_gata(res) && res->sata_port) { 3938 ap = res->sata_port->ap; 3939 spin_unlock_irq(scsi_cmd->device->host->host_lock); 3940 ata_do_eh(ap, NULL, NULL, ipr_sata_reset, NULL); 3941 spin_lock_irq(scsi_cmd->device->host->host_lock); 3942 3943 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 3944 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) { 3945 rc = -EIO; 3946 break; 3947 } 3948 } 3949 } else 3950 rc = ipr_device_reset(ioa_cfg, res); 3951 res->resetting_device = 0; 3952 3953 LEAVE; 3954 return (rc ? FAILED : SUCCESS); 3955 } 3956 3957 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 3958 { 3959 int rc; 3960 3961 spin_lock_irq(cmd->device->host->host_lock); 3962 rc = __ipr_eh_dev_reset(cmd); 3963 spin_unlock_irq(cmd->device->host->host_lock); 3964 3965 return rc; 3966 } 3967 3968 /** 3969 * ipr_bus_reset_done - Op done function for bus reset. 3970 * @ipr_cmd: ipr command struct 3971 * 3972 * This function is the op done function for a bus reset 3973 * 3974 * Return value: 3975 * none 3976 **/ 3977 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 3978 { 3979 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 3980 struct ipr_resource_entry *res; 3981 3982 ENTER; 3983 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3984 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle, 3985 sizeof(res->cfgte.res_handle))) { 3986 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus); 3987 break; 3988 } 3989 } 3990 3991 /* 3992 * If abort has not completed, indicate the reset has, else call the 3993 * abort's done function to wake the sleeping eh thread 3994 */ 3995 if (ipr_cmd->sibling->sibling) 3996 ipr_cmd->sibling->sibling = NULL; 3997 else 3998 ipr_cmd->sibling->done(ipr_cmd->sibling); 3999 4000 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4001 LEAVE; 4002 } 4003 4004 /** 4005 * ipr_abort_timeout - An abort task has timed out 4006 * @ipr_cmd: ipr command struct 4007 * 4008 * This function handles when an abort task times out. If this 4009 * happens we issue a bus reset since we have resources tied 4010 * up that must be freed before returning to the midlayer. 4011 * 4012 * Return value: 4013 * none 4014 **/ 4015 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4016 { 4017 struct ipr_cmnd *reset_cmd; 4018 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4019 struct ipr_cmd_pkt *cmd_pkt; 4020 unsigned long lock_flags = 0; 4021 4022 ENTER; 4023 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4024 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4025 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4026 return; 4027 } 4028 4029 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4030 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4031 ipr_cmd->sibling = reset_cmd; 4032 reset_cmd->sibling = ipr_cmd; 4033 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4034 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4035 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4036 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4037 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4038 4039 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4040 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4041 LEAVE; 4042 } 4043 4044 /** 4045 * ipr_cancel_op - Cancel specified op 4046 * @scsi_cmd: scsi command struct 4047 * 4048 * This function cancels specified op. 4049 * 4050 * Return value: 4051 * SUCCESS / FAILED 4052 **/ 4053 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4054 { 4055 struct ipr_cmnd *ipr_cmd; 4056 struct ipr_ioa_cfg *ioa_cfg; 4057 struct ipr_resource_entry *res; 4058 struct ipr_cmd_pkt *cmd_pkt; 4059 u32 ioasc; 4060 int op_found = 0; 4061 4062 ENTER; 4063 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4064 res = scsi_cmd->device->hostdata; 4065 4066 /* If we are currently going through reset/reload, return failed. 4067 * This will force the mid-layer to call ipr_eh_host_reset, 4068 * which will then go to sleep and wait for the reset to complete 4069 */ 4070 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4071 return FAILED; 4072 if (!res || !ipr_is_gscsi(res)) 4073 return FAILED; 4074 4075 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4076 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4077 ipr_cmd->done = ipr_scsi_eh_done; 4078 op_found = 1; 4079 break; 4080 } 4081 } 4082 4083 if (!op_found) 4084 return SUCCESS; 4085 4086 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4087 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 4088 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4089 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4090 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4091 ipr_cmd->u.sdev = scsi_cmd->device; 4092 4093 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4094 scsi_cmd->cmnd[0]); 4095 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4096 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4097 4098 /* 4099 * If the abort task timed out and we sent a bus reset, we will get 4100 * one the following responses to the abort 4101 */ 4102 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4103 ioasc = 0; 4104 ipr_trace; 4105 } 4106 4107 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4108 if (!ipr_is_naca_model(res)) 4109 res->needs_sync_complete = 1; 4110 4111 LEAVE; 4112 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4113 } 4114 4115 /** 4116 * ipr_eh_abort - Abort a single op 4117 * @scsi_cmd: scsi command struct 4118 * 4119 * Return value: 4120 * SUCCESS / FAILED 4121 **/ 4122 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4123 { 4124 unsigned long flags; 4125 int rc; 4126 4127 ENTER; 4128 4129 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4130 rc = ipr_cancel_op(scsi_cmd); 4131 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4132 4133 LEAVE; 4134 return rc; 4135 } 4136 4137 /** 4138 * ipr_handle_other_interrupt - Handle "other" interrupts 4139 * @ioa_cfg: ioa config struct 4140 * @int_reg: interrupt register 4141 * 4142 * Return value: 4143 * IRQ_NONE / IRQ_HANDLED 4144 **/ 4145 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4146 volatile u32 int_reg) 4147 { 4148 irqreturn_t rc = IRQ_HANDLED; 4149 4150 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4151 /* Mask the interrupt */ 4152 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4153 4154 /* Clear the interrupt */ 4155 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4156 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4157 4158 list_del(&ioa_cfg->reset_cmd->queue); 4159 del_timer(&ioa_cfg->reset_cmd->timer); 4160 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4161 } else { 4162 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4163 ioa_cfg->ioa_unit_checked = 1; 4164 else 4165 dev_err(&ioa_cfg->pdev->dev, 4166 "Permanent IOA failure. 0x%08X\n", int_reg); 4167 4168 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4169 ioa_cfg->sdt_state = GET_DUMP; 4170 4171 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4172 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4173 } 4174 4175 return rc; 4176 } 4177 4178 /** 4179 * ipr_isr - Interrupt service routine 4180 * @irq: irq number 4181 * @devp: pointer to ioa config struct 4182 * 4183 * Return value: 4184 * IRQ_NONE / IRQ_HANDLED 4185 **/ 4186 static irqreturn_t ipr_isr(int irq, void *devp) 4187 { 4188 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4189 unsigned long lock_flags = 0; 4190 volatile u32 int_reg, int_mask_reg; 4191 u32 ioasc; 4192 u16 cmd_index; 4193 struct ipr_cmnd *ipr_cmd; 4194 irqreturn_t rc = IRQ_NONE; 4195 4196 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4197 4198 /* If interrupts are disabled, ignore the interrupt */ 4199 if (!ioa_cfg->allow_interrupts) { 4200 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4201 return IRQ_NONE; 4202 } 4203 4204 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4205 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4206 4207 /* If an interrupt on the adapter did not occur, ignore it */ 4208 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4209 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4210 return IRQ_NONE; 4211 } 4212 4213 while (1) { 4214 ipr_cmd = NULL; 4215 4216 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4217 ioa_cfg->toggle_bit) { 4218 4219 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4220 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4221 4222 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4223 ioa_cfg->errors_logged++; 4224 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n"); 4225 4226 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4227 ioa_cfg->sdt_state = GET_DUMP; 4228 4229 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4230 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4231 return IRQ_HANDLED; 4232 } 4233 4234 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4235 4236 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4237 4238 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4239 4240 list_del(&ipr_cmd->queue); 4241 del_timer(&ipr_cmd->timer); 4242 ipr_cmd->done(ipr_cmd); 4243 4244 rc = IRQ_HANDLED; 4245 4246 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4247 ioa_cfg->hrrq_curr++; 4248 } else { 4249 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4250 ioa_cfg->toggle_bit ^= 1u; 4251 } 4252 } 4253 4254 if (ipr_cmd != NULL) { 4255 /* Clear the PCI interrupt */ 4256 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg); 4257 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4258 } else 4259 break; 4260 } 4261 4262 if (unlikely(rc == IRQ_NONE)) 4263 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4264 4265 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4266 return rc; 4267 } 4268 4269 /** 4270 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 4271 * @ioa_cfg: ioa config struct 4272 * @ipr_cmd: ipr command struct 4273 * 4274 * Return value: 4275 * 0 on success / -1 on failure 4276 **/ 4277 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 4278 struct ipr_cmnd *ipr_cmd) 4279 { 4280 int i, nseg; 4281 struct scatterlist *sg; 4282 u32 length; 4283 u32 ioadl_flags = 0; 4284 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4285 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4286 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 4287 4288 length = scsi_bufflen(scsi_cmd); 4289 if (!length) 4290 return 0; 4291 4292 nseg = scsi_dma_map(scsi_cmd); 4293 if (nseg < 0) { 4294 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 4295 return -1; 4296 } 4297 4298 ipr_cmd->dma_use_sg = nseg; 4299 4300 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 4301 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 4302 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 4303 ioarcb->write_data_transfer_length = cpu_to_be32(length); 4304 ioarcb->write_ioadl_len = 4305 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4306 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 4307 ioadl_flags = IPR_IOADL_FLAGS_READ; 4308 ioarcb->read_data_transfer_length = cpu_to_be32(length); 4309 ioarcb->read_ioadl_len = 4310 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 4311 } 4312 4313 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) { 4314 ioadl = ioarcb->add_data.u.ioadl; 4315 ioarcb->write_ioadl_addr = 4316 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) + 4317 offsetof(struct ipr_ioarcb, add_data)); 4318 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4319 } 4320 4321 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 4322 ioadl[i].flags_and_data_len = 4323 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 4324 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 4325 } 4326 4327 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 4328 return 0; 4329 } 4330 4331 /** 4332 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 4333 * @scsi_cmd: scsi command struct 4334 * 4335 * Return value: 4336 * task attributes 4337 **/ 4338 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 4339 { 4340 u8 tag[2]; 4341 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 4342 4343 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 4344 switch (tag[0]) { 4345 case MSG_SIMPLE_TAG: 4346 rc = IPR_FLAGS_LO_SIMPLE_TASK; 4347 break; 4348 case MSG_HEAD_TAG: 4349 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 4350 break; 4351 case MSG_ORDERED_TAG: 4352 rc = IPR_FLAGS_LO_ORDERED_TASK; 4353 break; 4354 }; 4355 } 4356 4357 return rc; 4358 } 4359 4360 /** 4361 * ipr_erp_done - Process completion of ERP for a device 4362 * @ipr_cmd: ipr command struct 4363 * 4364 * This function copies the sense buffer into the scsi_cmd 4365 * struct and pushes the scsi_done function. 4366 * 4367 * Return value: 4368 * nothing 4369 **/ 4370 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 4371 { 4372 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4373 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4374 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4375 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4376 4377 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4378 scsi_cmd->result |= (DID_ERROR << 16); 4379 scmd_printk(KERN_ERR, scsi_cmd, 4380 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 4381 } else { 4382 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 4383 SCSI_SENSE_BUFFERSIZE); 4384 } 4385 4386 if (res) { 4387 if (!ipr_is_naca_model(res)) 4388 res->needs_sync_complete = 1; 4389 res->in_erp = 0; 4390 } 4391 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4392 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4393 scsi_cmd->scsi_done(scsi_cmd); 4394 } 4395 4396 /** 4397 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 4398 * @ipr_cmd: ipr command struct 4399 * 4400 * Return value: 4401 * none 4402 **/ 4403 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 4404 { 4405 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4406 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4407 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr); 4408 4409 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 4410 ioarcb->write_data_transfer_length = 0; 4411 ioarcb->read_data_transfer_length = 0; 4412 ioarcb->write_ioadl_len = 0; 4413 ioarcb->read_ioadl_len = 0; 4414 ioasa->ioasc = 0; 4415 ioasa->residual_data_len = 0; 4416 ioarcb->write_ioadl_addr = 4417 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 4418 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 4419 } 4420 4421 /** 4422 * ipr_erp_request_sense - Send request sense to a device 4423 * @ipr_cmd: ipr command struct 4424 * 4425 * This function sends a request sense to a device as a result 4426 * of a check condition. 4427 * 4428 * Return value: 4429 * nothing 4430 **/ 4431 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 4432 { 4433 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4434 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4435 4436 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 4437 ipr_erp_done(ipr_cmd); 4438 return; 4439 } 4440 4441 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4442 4443 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 4444 cmd_pkt->cdb[0] = REQUEST_SENSE; 4445 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 4446 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 4447 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4448 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 4449 4450 ipr_cmd->ioadl[0].flags_and_data_len = 4451 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE); 4452 ipr_cmd->ioadl[0].address = 4453 cpu_to_be32(ipr_cmd->sense_buffer_dma); 4454 4455 ipr_cmd->ioarcb.read_ioadl_len = 4456 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 4457 ipr_cmd->ioarcb.read_data_transfer_length = 4458 cpu_to_be32(SCSI_SENSE_BUFFERSIZE); 4459 4460 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 4461 IPR_REQUEST_SENSE_TIMEOUT * 2); 4462 } 4463 4464 /** 4465 * ipr_erp_cancel_all - Send cancel all to a device 4466 * @ipr_cmd: ipr command struct 4467 * 4468 * This function sends a cancel all to a device to clear the 4469 * queue. If we are running TCQ on the device, QERR is set to 1, 4470 * which means all outstanding ops have been dropped on the floor. 4471 * Cancel all will return them to us. 4472 * 4473 * Return value: 4474 * nothing 4475 **/ 4476 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 4477 { 4478 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4479 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4480 struct ipr_cmd_pkt *cmd_pkt; 4481 4482 res->in_erp = 1; 4483 4484 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 4485 4486 if (!scsi_get_tag_type(scsi_cmd->device)) { 4487 ipr_erp_request_sense(ipr_cmd); 4488 return; 4489 } 4490 4491 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4492 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4493 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4494 4495 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 4496 IPR_CANCEL_ALL_TIMEOUT); 4497 } 4498 4499 /** 4500 * ipr_dump_ioasa - Dump contents of IOASA 4501 * @ioa_cfg: ioa config struct 4502 * @ipr_cmd: ipr command struct 4503 * @res: resource entry struct 4504 * 4505 * This function is invoked by the interrupt handler when ops 4506 * fail. It will log the IOASA if appropriate. Only called 4507 * for GPDD ops. 4508 * 4509 * Return value: 4510 * none 4511 **/ 4512 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 4513 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 4514 { 4515 int i; 4516 u16 data_len; 4517 u32 ioasc, fd_ioasc; 4518 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4519 __be32 *ioasa_data = (__be32 *)ioasa; 4520 int error_index; 4521 4522 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; 4523 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; 4524 4525 if (0 == ioasc) 4526 return; 4527 4528 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 4529 return; 4530 4531 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 4532 error_index = ipr_get_error(fd_ioasc); 4533 else 4534 error_index = ipr_get_error(ioasc); 4535 4536 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 4537 /* Don't log an error if the IOA already logged one */ 4538 if (ioasa->ilid != 0) 4539 return; 4540 4541 if (!ipr_is_gscsi(res)) 4542 return; 4543 4544 if (ipr_error_table[error_index].log_ioasa == 0) 4545 return; 4546 } 4547 4548 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 4549 4550 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) 4551 data_len = sizeof(struct ipr_ioasa); 4552 else 4553 data_len = be16_to_cpu(ioasa->ret_stat_len); 4554 4555 ipr_err("IOASA Dump:\n"); 4556 4557 for (i = 0; i < data_len / 4; i += 4) { 4558 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 4559 be32_to_cpu(ioasa_data[i]), 4560 be32_to_cpu(ioasa_data[i+1]), 4561 be32_to_cpu(ioasa_data[i+2]), 4562 be32_to_cpu(ioasa_data[i+3])); 4563 } 4564 } 4565 4566 /** 4567 * ipr_gen_sense - Generate SCSI sense data from an IOASA 4568 * @ioasa: IOASA 4569 * @sense_buf: sense data buffer 4570 * 4571 * Return value: 4572 * none 4573 **/ 4574 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 4575 { 4576 u32 failing_lba; 4577 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 4578 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 4579 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4580 u32 ioasc = be32_to_cpu(ioasa->ioasc); 4581 4582 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 4583 4584 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 4585 return; 4586 4587 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 4588 4589 if (ipr_is_vset_device(res) && 4590 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 4591 ioasa->u.vset.failing_lba_hi != 0) { 4592 sense_buf[0] = 0x72; 4593 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 4594 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 4595 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 4596 4597 sense_buf[7] = 12; 4598 sense_buf[8] = 0; 4599 sense_buf[9] = 0x0A; 4600 sense_buf[10] = 0x80; 4601 4602 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 4603 4604 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 4605 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 4606 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 4607 sense_buf[15] = failing_lba & 0x000000ff; 4608 4609 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4610 4611 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 4612 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 4613 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 4614 sense_buf[19] = failing_lba & 0x000000ff; 4615 } else { 4616 sense_buf[0] = 0x70; 4617 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 4618 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 4619 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 4620 4621 /* Illegal request */ 4622 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 4623 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 4624 sense_buf[7] = 10; /* additional length */ 4625 4626 /* IOARCB was in error */ 4627 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 4628 sense_buf[15] = 0xC0; 4629 else /* Parameter data was invalid */ 4630 sense_buf[15] = 0x80; 4631 4632 sense_buf[16] = 4633 ((IPR_FIELD_POINTER_MASK & 4634 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; 4635 sense_buf[17] = 4636 (IPR_FIELD_POINTER_MASK & 4637 be32_to_cpu(ioasa->ioasc_specific)) & 0xff; 4638 } else { 4639 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 4640 if (ipr_is_vset_device(res)) 4641 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 4642 else 4643 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 4644 4645 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 4646 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 4647 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 4648 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 4649 sense_buf[6] = failing_lba & 0x000000ff; 4650 } 4651 4652 sense_buf[7] = 6; /* additional length */ 4653 } 4654 } 4655 } 4656 4657 /** 4658 * ipr_get_autosense - Copy autosense data to sense buffer 4659 * @ipr_cmd: ipr command struct 4660 * 4661 * This function copies the autosense buffer to the buffer 4662 * in the scsi_cmd, if there is autosense available. 4663 * 4664 * Return value: 4665 * 1 if autosense was available / 0 if not 4666 **/ 4667 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 4668 { 4669 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 4670 4671 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 4672 return 0; 4673 4674 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 4675 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 4676 SCSI_SENSE_BUFFERSIZE)); 4677 return 1; 4678 } 4679 4680 /** 4681 * ipr_erp_start - Process an error response for a SCSI op 4682 * @ioa_cfg: ioa config struct 4683 * @ipr_cmd: ipr command struct 4684 * 4685 * This function determines whether or not to initiate ERP 4686 * on the affected device. 4687 * 4688 * Return value: 4689 * nothing 4690 **/ 4691 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 4692 struct ipr_cmnd *ipr_cmd) 4693 { 4694 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4695 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 4696 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4697 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 4698 4699 if (!res) { 4700 ipr_scsi_eh_done(ipr_cmd); 4701 return; 4702 } 4703 4704 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 4705 ipr_gen_sense(ipr_cmd); 4706 4707 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 4708 4709 switch (masked_ioasc) { 4710 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 4711 if (ipr_is_naca_model(res)) 4712 scsi_cmd->result |= (DID_ABORT << 16); 4713 else 4714 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4715 break; 4716 case IPR_IOASC_IR_RESOURCE_HANDLE: 4717 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 4718 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4719 break; 4720 case IPR_IOASC_HW_SEL_TIMEOUT: 4721 scsi_cmd->result |= (DID_NO_CONNECT << 16); 4722 if (!ipr_is_naca_model(res)) 4723 res->needs_sync_complete = 1; 4724 break; 4725 case IPR_IOASC_SYNC_REQUIRED: 4726 if (!res->in_erp) 4727 res->needs_sync_complete = 1; 4728 scsi_cmd->result |= (DID_IMM_RETRY << 16); 4729 break; 4730 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 4731 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 4732 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 4733 break; 4734 case IPR_IOASC_BUS_WAS_RESET: 4735 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 4736 /* 4737 * Report the bus reset and ask for a retry. The device 4738 * will give CC/UA the next command. 4739 */ 4740 if (!res->resetting_device) 4741 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 4742 scsi_cmd->result |= (DID_ERROR << 16); 4743 if (!ipr_is_naca_model(res)) 4744 res->needs_sync_complete = 1; 4745 break; 4746 case IPR_IOASC_HW_DEV_BUS_STATUS: 4747 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 4748 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 4749 if (!ipr_get_autosense(ipr_cmd)) { 4750 if (!ipr_is_naca_model(res)) { 4751 ipr_erp_cancel_all(ipr_cmd); 4752 return; 4753 } 4754 } 4755 } 4756 if (!ipr_is_naca_model(res)) 4757 res->needs_sync_complete = 1; 4758 break; 4759 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 4760 break; 4761 default: 4762 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 4763 scsi_cmd->result |= (DID_ERROR << 16); 4764 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 4765 res->needs_sync_complete = 1; 4766 break; 4767 } 4768 4769 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4770 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4771 scsi_cmd->scsi_done(scsi_cmd); 4772 } 4773 4774 /** 4775 * ipr_scsi_done - mid-layer done function 4776 * @ipr_cmd: ipr command struct 4777 * 4778 * This function is invoked by the interrupt handler for 4779 * ops generated by the SCSI mid-layer 4780 * 4781 * Return value: 4782 * none 4783 **/ 4784 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 4785 { 4786 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4787 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4788 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4789 4790 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len)); 4791 4792 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 4793 scsi_dma_unmap(ipr_cmd->scsi_cmd); 4794 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4795 scsi_cmd->scsi_done(scsi_cmd); 4796 } else 4797 ipr_erp_start(ioa_cfg, ipr_cmd); 4798 } 4799 4800 /** 4801 * ipr_queuecommand - Queue a mid-layer request 4802 * @scsi_cmd: scsi command struct 4803 * @done: done function 4804 * 4805 * This function queues a request generated by the mid-layer. 4806 * 4807 * Return value: 4808 * 0 on success 4809 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 4810 * SCSI_MLQUEUE_HOST_BUSY if host is busy 4811 **/ 4812 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 4813 void (*done) (struct scsi_cmnd *)) 4814 { 4815 struct ipr_ioa_cfg *ioa_cfg; 4816 struct ipr_resource_entry *res; 4817 struct ipr_ioarcb *ioarcb; 4818 struct ipr_cmnd *ipr_cmd; 4819 int rc = 0; 4820 4821 scsi_cmd->scsi_done = done; 4822 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4823 res = scsi_cmd->device->hostdata; 4824 scsi_cmd->result = (DID_OK << 16); 4825 4826 /* 4827 * We are currently blocking all devices due to a host reset 4828 * We have told the host to stop giving us new requests, but 4829 * ERP ops don't count. FIXME 4830 */ 4831 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 4832 return SCSI_MLQUEUE_HOST_BUSY; 4833 4834 /* 4835 * FIXME - Create scsi_set_host_offline interface 4836 * and the ioa_is_dead check can be removed 4837 */ 4838 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 4839 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 4840 scsi_cmd->result = (DID_NO_CONNECT << 16); 4841 scsi_cmd->scsi_done(scsi_cmd); 4842 return 0; 4843 } 4844 4845 if (ipr_is_gata(res) && res->sata_port) 4846 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 4847 4848 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4849 ioarcb = &ipr_cmd->ioarcb; 4850 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 4851 4852 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 4853 ipr_cmd->scsi_cmd = scsi_cmd; 4854 ioarcb->res_handle = res->cfgte.res_handle; 4855 ipr_cmd->done = ipr_scsi_done; 4856 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 4857 4858 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 4859 if (scsi_cmd->underflow == 0) 4860 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 4861 4862 if (res->needs_sync_complete) { 4863 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 4864 res->needs_sync_complete = 0; 4865 } 4866 4867 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 4868 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 4869 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 4870 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 4871 } 4872 4873 if (scsi_cmd->cmnd[0] >= 0xC0 && 4874 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 4875 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 4876 4877 if (likely(rc == 0)) 4878 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 4879 4880 if (likely(rc == 0)) { 4881 mb(); 4882 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr), 4883 ioa_cfg->regs.ioarrin_reg); 4884 } else { 4885 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4886 return SCSI_MLQUEUE_HOST_BUSY; 4887 } 4888 4889 return 0; 4890 } 4891 4892 /** 4893 * ipr_ioctl - IOCTL handler 4894 * @sdev: scsi device struct 4895 * @cmd: IOCTL cmd 4896 * @arg: IOCTL arg 4897 * 4898 * Return value: 4899 * 0 on success / other on failure 4900 **/ 4901 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 4902 { 4903 struct ipr_resource_entry *res; 4904 4905 res = (struct ipr_resource_entry *)sdev->hostdata; 4906 if (res && ipr_is_gata(res)) 4907 return ata_scsi_ioctl(sdev, cmd, arg); 4908 4909 return -EINVAL; 4910 } 4911 4912 /** 4913 * ipr_info - Get information about the card/driver 4914 * @scsi_host: scsi host struct 4915 * 4916 * Return value: 4917 * pointer to buffer with description string 4918 **/ 4919 static const char * ipr_ioa_info(struct Scsi_Host *host) 4920 { 4921 static char buffer[512]; 4922 struct ipr_ioa_cfg *ioa_cfg; 4923 unsigned long lock_flags = 0; 4924 4925 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 4926 4927 spin_lock_irqsave(host->host_lock, lock_flags); 4928 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 4929 spin_unlock_irqrestore(host->host_lock, lock_flags); 4930 4931 return buffer; 4932 } 4933 4934 static struct scsi_host_template driver_template = { 4935 .module = THIS_MODULE, 4936 .name = "IPR", 4937 .info = ipr_ioa_info, 4938 .ioctl = ipr_ioctl, 4939 .queuecommand = ipr_queuecommand, 4940 .eh_abort_handler = ipr_eh_abort, 4941 .eh_device_reset_handler = ipr_eh_dev_reset, 4942 .eh_host_reset_handler = ipr_eh_host_reset, 4943 .slave_alloc = ipr_slave_alloc, 4944 .slave_configure = ipr_slave_configure, 4945 .slave_destroy = ipr_slave_destroy, 4946 .target_alloc = ipr_target_alloc, 4947 .target_destroy = ipr_target_destroy, 4948 .change_queue_depth = ipr_change_queue_depth, 4949 .change_queue_type = ipr_change_queue_type, 4950 .bios_param = ipr_biosparam, 4951 .can_queue = IPR_MAX_COMMANDS, 4952 .this_id = -1, 4953 .sg_tablesize = IPR_MAX_SGLIST, 4954 .max_sectors = IPR_IOA_MAX_SECTORS, 4955 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 4956 .use_clustering = ENABLE_CLUSTERING, 4957 .shost_attrs = ipr_ioa_attrs, 4958 .sdev_attrs = ipr_dev_attrs, 4959 .proc_name = IPR_NAME 4960 }; 4961 4962 /** 4963 * ipr_ata_phy_reset - libata phy_reset handler 4964 * @ap: ata port to reset 4965 * 4966 **/ 4967 static void ipr_ata_phy_reset(struct ata_port *ap) 4968 { 4969 unsigned long flags; 4970 struct ipr_sata_port *sata_port = ap->private_data; 4971 struct ipr_resource_entry *res = sata_port->res; 4972 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4973 int rc; 4974 4975 ENTER; 4976 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 4977 while(ioa_cfg->in_reset_reload) { 4978 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 4979 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4980 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 4981 } 4982 4983 if (!ioa_cfg->allow_cmds) 4984 goto out_unlock; 4985 4986 rc = ipr_device_reset(ioa_cfg, res); 4987 4988 if (rc) { 4989 ata_port_disable(ap); 4990 goto out_unlock; 4991 } 4992 4993 switch(res->cfgte.proto) { 4994 case IPR_PROTO_SATA: 4995 case IPR_PROTO_SAS_STP: 4996 ap->link.device[0].class = ATA_DEV_ATA; 4997 break; 4998 case IPR_PROTO_SATA_ATAPI: 4999 case IPR_PROTO_SAS_STP_ATAPI: 5000 ap->link.device[0].class = ATA_DEV_ATAPI; 5001 break; 5002 default: 5003 ap->link.device[0].class = ATA_DEV_UNKNOWN; 5004 ata_port_disable(ap); 5005 break; 5006 }; 5007 5008 out_unlock: 5009 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5010 LEAVE; 5011 } 5012 5013 /** 5014 * ipr_ata_post_internal - Cleanup after an internal command 5015 * @qc: ATA queued command 5016 * 5017 * Return value: 5018 * none 5019 **/ 5020 static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5021 { 5022 struct ipr_sata_port *sata_port = qc->ap->private_data; 5023 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5024 struct ipr_cmnd *ipr_cmd; 5025 unsigned long flags; 5026 5027 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5028 while(ioa_cfg->in_reset_reload) { 5029 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5030 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5031 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5032 } 5033 5034 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5035 if (ipr_cmd->qc == qc) { 5036 ipr_device_reset(ioa_cfg, sata_port->res); 5037 break; 5038 } 5039 } 5040 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5041 } 5042 5043 /** 5044 * ipr_tf_read - Read the current ATA taskfile for the ATA port 5045 * @ap: ATA port 5046 * @tf: destination ATA taskfile 5047 * 5048 * Return value: 5049 * none 5050 **/ 5051 static void ipr_tf_read(struct ata_port *ap, struct ata_taskfile *tf) 5052 { 5053 struct ipr_sata_port *sata_port = ap->private_data; 5054 struct ipr_ioasa_gata *g = &sata_port->ioasa; 5055 5056 tf->feature = g->error; 5057 tf->nsect = g->nsect; 5058 tf->lbal = g->lbal; 5059 tf->lbam = g->lbam; 5060 tf->lbah = g->lbah; 5061 tf->device = g->device; 5062 tf->command = g->status; 5063 tf->hob_nsect = g->hob_nsect; 5064 tf->hob_lbal = g->hob_lbal; 5065 tf->hob_lbam = g->hob_lbam; 5066 tf->hob_lbah = g->hob_lbah; 5067 tf->ctl = g->alt_status; 5068 } 5069 5070 /** 5071 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5072 * @regs: destination 5073 * @tf: source ATA taskfile 5074 * 5075 * Return value: 5076 * none 5077 **/ 5078 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5079 struct ata_taskfile *tf) 5080 { 5081 regs->feature = tf->feature; 5082 regs->nsect = tf->nsect; 5083 regs->lbal = tf->lbal; 5084 regs->lbam = tf->lbam; 5085 regs->lbah = tf->lbah; 5086 regs->device = tf->device; 5087 regs->command = tf->command; 5088 regs->hob_feature = tf->hob_feature; 5089 regs->hob_nsect = tf->hob_nsect; 5090 regs->hob_lbal = tf->hob_lbal; 5091 regs->hob_lbam = tf->hob_lbam; 5092 regs->hob_lbah = tf->hob_lbah; 5093 regs->ctl = tf->ctl; 5094 } 5095 5096 /** 5097 * ipr_sata_done - done function for SATA commands 5098 * @ipr_cmd: ipr command struct 5099 * 5100 * This function is invoked by the interrupt handler for 5101 * ops generated by the SCSI mid-layer to SATA devices 5102 * 5103 * Return value: 5104 * none 5105 **/ 5106 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5107 { 5108 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5109 struct ata_queued_cmd *qc = ipr_cmd->qc; 5110 struct ipr_sata_port *sata_port = qc->ap->private_data; 5111 struct ipr_resource_entry *res = sata_port->res; 5112 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5113 5114 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 5115 sizeof(struct ipr_ioasa_gata)); 5116 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5117 5118 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5119 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus, 5120 res->cfgte.res_addr.target); 5121 5122 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5123 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5124 else 5125 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5126 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5127 ata_qc_complete(qc); 5128 } 5129 5130 /** 5131 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5132 * @ipr_cmd: ipr command struct 5133 * @qc: ATA queued command 5134 * 5135 **/ 5136 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5137 struct ata_queued_cmd *qc) 5138 { 5139 u32 ioadl_flags = 0; 5140 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5141 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5142 struct ipr_ioadl_desc *last_ioadl = NULL; 5143 int len = qc->nbytes + qc->pad_len; 5144 struct scatterlist *sg; 5145 5146 if (len == 0) 5147 return; 5148 5149 if (qc->dma_dir == DMA_TO_DEVICE) { 5150 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5151 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5152 ioarcb->write_data_transfer_length = cpu_to_be32(len); 5153 ioarcb->write_ioadl_len = 5154 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5155 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5156 ioadl_flags = IPR_IOADL_FLAGS_READ; 5157 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5158 ioarcb->read_ioadl_len = 5159 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5160 } 5161 5162 ata_for_each_sg(sg, qc) { 5163 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5164 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5165 5166 last_ioadl = ioadl; 5167 ioadl++; 5168 } 5169 5170 if (likely(last_ioadl)) 5171 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5172 } 5173 5174 /** 5175 * ipr_qc_issue - Issue a SATA qc to a device 5176 * @qc: queued command 5177 * 5178 * Return value: 5179 * 0 if success 5180 **/ 5181 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5182 { 5183 struct ata_port *ap = qc->ap; 5184 struct ipr_sata_port *sata_port = ap->private_data; 5185 struct ipr_resource_entry *res = sata_port->res; 5186 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5187 struct ipr_cmnd *ipr_cmd; 5188 struct ipr_ioarcb *ioarcb; 5189 struct ipr_ioarcb_ata_regs *regs; 5190 5191 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5192 return AC_ERR_SYSTEM; 5193 5194 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5195 ioarcb = &ipr_cmd->ioarcb; 5196 regs = &ioarcb->add_data.u.regs; 5197 5198 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data)); 5199 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs)); 5200 5201 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5202 ipr_cmd->qc = qc; 5203 ipr_cmd->done = ipr_sata_done; 5204 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle; 5205 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 5206 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5207 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5208 ipr_cmd->dma_use_sg = qc->pad_len ? qc->n_elem + 1 : qc->n_elem; 5209 5210 ipr_build_ata_ioadl(ipr_cmd, qc); 5211 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5212 ipr_copy_sata_tf(regs, &qc->tf); 5213 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 5214 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr)); 5215 5216 switch (qc->tf.protocol) { 5217 case ATA_PROT_NODATA: 5218 case ATA_PROT_PIO: 5219 break; 5220 5221 case ATA_PROT_DMA: 5222 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5223 break; 5224 5225 case ATA_PROT_ATAPI: 5226 case ATA_PROT_ATAPI_NODATA: 5227 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5228 break; 5229 5230 case ATA_PROT_ATAPI_DMA: 5231 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 5232 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 5233 break; 5234 5235 default: 5236 WARN_ON(1); 5237 return AC_ERR_INVALID; 5238 } 5239 5240 mb(); 5241 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr), 5242 ioa_cfg->regs.ioarrin_reg); 5243 return 0; 5244 } 5245 5246 /** 5247 * ipr_ata_check_status - Return last ATA status 5248 * @ap: ATA port 5249 * 5250 * Return value: 5251 * ATA status 5252 **/ 5253 static u8 ipr_ata_check_status(struct ata_port *ap) 5254 { 5255 struct ipr_sata_port *sata_port = ap->private_data; 5256 return sata_port->ioasa.status; 5257 } 5258 5259 /** 5260 * ipr_ata_check_altstatus - Return last ATA altstatus 5261 * @ap: ATA port 5262 * 5263 * Return value: 5264 * Alt ATA status 5265 **/ 5266 static u8 ipr_ata_check_altstatus(struct ata_port *ap) 5267 { 5268 struct ipr_sata_port *sata_port = ap->private_data; 5269 return sata_port->ioasa.alt_status; 5270 } 5271 5272 static struct ata_port_operations ipr_sata_ops = { 5273 .check_status = ipr_ata_check_status, 5274 .check_altstatus = ipr_ata_check_altstatus, 5275 .dev_select = ata_noop_dev_select, 5276 .phy_reset = ipr_ata_phy_reset, 5277 .post_internal_cmd = ipr_ata_post_internal, 5278 .tf_read = ipr_tf_read, 5279 .qc_prep = ata_noop_qc_prep, 5280 .qc_issue = ipr_qc_issue, 5281 .port_start = ata_sas_port_start, 5282 .port_stop = ata_sas_port_stop 5283 }; 5284 5285 static struct ata_port_info sata_port_info = { 5286 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 5287 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 5288 .pio_mask = 0x10, /* pio4 */ 5289 .mwdma_mask = 0x07, 5290 .udma_mask = 0x7f, /* udma0-6 */ 5291 .port_ops = &ipr_sata_ops 5292 }; 5293 5294 #ifdef CONFIG_PPC_PSERIES 5295 static const u16 ipr_blocked_processors[] = { 5296 PV_NORTHSTAR, 5297 PV_PULSAR, 5298 PV_POWER4, 5299 PV_ICESTAR, 5300 PV_SSTAR, 5301 PV_POWER4p, 5302 PV_630, 5303 PV_630p 5304 }; 5305 5306 /** 5307 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 5308 * @ioa_cfg: ioa cfg struct 5309 * 5310 * Adapters that use Gemstone revision < 3.1 do not work reliably on 5311 * certain pSeries hardware. This function determines if the given 5312 * adapter is in one of these confgurations or not. 5313 * 5314 * Return value: 5315 * 1 if adapter is not supported / 0 if adapter is supported 5316 **/ 5317 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 5318 { 5319 int i; 5320 5321 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 5322 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 5323 if (__is_processor(ipr_blocked_processors[i])) 5324 return 1; 5325 } 5326 } 5327 return 0; 5328 } 5329 #else 5330 #define ipr_invalid_adapter(ioa_cfg) 0 5331 #endif 5332 5333 /** 5334 * ipr_ioa_bringdown_done - IOA bring down completion. 5335 * @ipr_cmd: ipr command struct 5336 * 5337 * This function processes the completion of an adapter bring down. 5338 * It wakes any reset sleepers. 5339 * 5340 * Return value: 5341 * IPR_RC_JOB_RETURN 5342 **/ 5343 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 5344 { 5345 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5346 5347 ENTER; 5348 ioa_cfg->in_reset_reload = 0; 5349 ioa_cfg->reset_retries = 0; 5350 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5351 wake_up_all(&ioa_cfg->reset_wait_q); 5352 5353 spin_unlock_irq(ioa_cfg->host->host_lock); 5354 scsi_unblock_requests(ioa_cfg->host); 5355 spin_lock_irq(ioa_cfg->host->host_lock); 5356 LEAVE; 5357 5358 return IPR_RC_JOB_RETURN; 5359 } 5360 5361 /** 5362 * ipr_ioa_reset_done - IOA reset completion. 5363 * @ipr_cmd: ipr command struct 5364 * 5365 * This function processes the completion of an adapter reset. 5366 * It schedules any necessary mid-layer add/removes and 5367 * wakes any reset sleepers. 5368 * 5369 * Return value: 5370 * IPR_RC_JOB_RETURN 5371 **/ 5372 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 5373 { 5374 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5375 struct ipr_resource_entry *res; 5376 struct ipr_hostrcb *hostrcb, *temp; 5377 int i = 0; 5378 5379 ENTER; 5380 ioa_cfg->in_reset_reload = 0; 5381 ioa_cfg->allow_cmds = 1; 5382 ioa_cfg->reset_cmd = NULL; 5383 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 5384 5385 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 5386 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 5387 ipr_trace; 5388 break; 5389 } 5390 } 5391 schedule_work(&ioa_cfg->work_q); 5392 5393 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 5394 list_del(&hostrcb->queue); 5395 if (i++ < IPR_NUM_LOG_HCAMS) 5396 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 5397 else 5398 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 5399 } 5400 5401 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 5402 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 5403 5404 ioa_cfg->reset_retries = 0; 5405 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5406 wake_up_all(&ioa_cfg->reset_wait_q); 5407 5408 spin_unlock_irq(ioa_cfg->host->host_lock); 5409 scsi_unblock_requests(ioa_cfg->host); 5410 spin_lock_irq(ioa_cfg->host->host_lock); 5411 5412 if (!ioa_cfg->allow_cmds) 5413 scsi_block_requests(ioa_cfg->host); 5414 5415 LEAVE; 5416 return IPR_RC_JOB_RETURN; 5417 } 5418 5419 /** 5420 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 5421 * @supported_dev: supported device struct 5422 * @vpids: vendor product id struct 5423 * 5424 * Return value: 5425 * none 5426 **/ 5427 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 5428 struct ipr_std_inq_vpids *vpids) 5429 { 5430 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 5431 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 5432 supported_dev->num_records = 1; 5433 supported_dev->data_length = 5434 cpu_to_be16(sizeof(struct ipr_supported_device)); 5435 supported_dev->reserved = 0; 5436 } 5437 5438 /** 5439 * ipr_set_supported_devs - Send Set Supported Devices for a device 5440 * @ipr_cmd: ipr command struct 5441 * 5442 * This function send a Set Supported Devices to the adapter 5443 * 5444 * Return value: 5445 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5446 **/ 5447 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 5448 { 5449 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5450 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 5451 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5452 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5453 struct ipr_resource_entry *res = ipr_cmd->u.res; 5454 5455 ipr_cmd->job_step = ipr_ioa_reset_done; 5456 5457 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 5458 if (!ipr_is_scsi_disk(res)) 5459 continue; 5460 5461 ipr_cmd->u.res = res; 5462 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids); 5463 5464 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5465 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5466 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5467 5468 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 5469 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 5470 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 5471 5472 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | 5473 sizeof(struct ipr_supported_device)); 5474 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma + 5475 offsetof(struct ipr_misc_cbs, supp_dev)); 5476 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5477 ioarcb->write_data_transfer_length = 5478 cpu_to_be32(sizeof(struct ipr_supported_device)); 5479 5480 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 5481 IPR_SET_SUP_DEVICE_TIMEOUT); 5482 5483 ipr_cmd->job_step = ipr_set_supported_devs; 5484 return IPR_RC_JOB_RETURN; 5485 } 5486 5487 return IPR_RC_JOB_CONTINUE; 5488 } 5489 5490 /** 5491 * ipr_setup_write_cache - Disable write cache if needed 5492 * @ipr_cmd: ipr command struct 5493 * 5494 * This function sets up adapters write cache to desired setting 5495 * 5496 * Return value: 5497 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5498 **/ 5499 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd) 5500 { 5501 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5502 5503 ipr_cmd->job_step = ipr_set_supported_devs; 5504 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 5505 struct ipr_resource_entry, queue); 5506 5507 if (ioa_cfg->cache_state != CACHE_DISABLED) 5508 return IPR_RC_JOB_CONTINUE; 5509 5510 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 5511 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5512 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 5513 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 5514 5515 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5516 5517 return IPR_RC_JOB_RETURN; 5518 } 5519 5520 /** 5521 * ipr_get_mode_page - Locate specified mode page 5522 * @mode_pages: mode page buffer 5523 * @page_code: page code to find 5524 * @len: minimum required length for mode page 5525 * 5526 * Return value: 5527 * pointer to mode page / NULL on failure 5528 **/ 5529 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 5530 u32 page_code, u32 len) 5531 { 5532 struct ipr_mode_page_hdr *mode_hdr; 5533 u32 page_length; 5534 u32 length; 5535 5536 if (!mode_pages || (mode_pages->hdr.length == 0)) 5537 return NULL; 5538 5539 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 5540 mode_hdr = (struct ipr_mode_page_hdr *) 5541 (mode_pages->data + mode_pages->hdr.block_desc_len); 5542 5543 while (length) { 5544 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 5545 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 5546 return mode_hdr; 5547 break; 5548 } else { 5549 page_length = (sizeof(struct ipr_mode_page_hdr) + 5550 mode_hdr->page_length); 5551 length -= page_length; 5552 mode_hdr = (struct ipr_mode_page_hdr *) 5553 ((unsigned long)mode_hdr + page_length); 5554 } 5555 } 5556 return NULL; 5557 } 5558 5559 /** 5560 * ipr_check_term_power - Check for term power errors 5561 * @ioa_cfg: ioa config struct 5562 * @mode_pages: IOAFP mode pages buffer 5563 * 5564 * Check the IOAFP's mode page 28 for term power errors 5565 * 5566 * Return value: 5567 * nothing 5568 **/ 5569 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 5570 struct ipr_mode_pages *mode_pages) 5571 { 5572 int i; 5573 int entry_length; 5574 struct ipr_dev_bus_entry *bus; 5575 struct ipr_mode_page28 *mode_page; 5576 5577 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5578 sizeof(struct ipr_mode_page28)); 5579 5580 entry_length = mode_page->entry_length; 5581 5582 bus = mode_page->bus; 5583 5584 for (i = 0; i < mode_page->num_entries; i++) { 5585 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 5586 dev_err(&ioa_cfg->pdev->dev, 5587 "Term power is absent on scsi bus %d\n", 5588 bus->res_addr.bus); 5589 } 5590 5591 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 5592 } 5593 } 5594 5595 /** 5596 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 5597 * @ioa_cfg: ioa config struct 5598 * 5599 * Looks through the config table checking for SES devices. If 5600 * the SES device is in the SES table indicating a maximum SCSI 5601 * bus speed, the speed is limited for the bus. 5602 * 5603 * Return value: 5604 * none 5605 **/ 5606 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 5607 { 5608 u32 max_xfer_rate; 5609 int i; 5610 5611 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 5612 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 5613 ioa_cfg->bus_attr[i].bus_width); 5614 5615 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 5616 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 5617 } 5618 } 5619 5620 /** 5621 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 5622 * @ioa_cfg: ioa config struct 5623 * @mode_pages: mode page 28 buffer 5624 * 5625 * Updates mode page 28 based on driver configuration 5626 * 5627 * Return value: 5628 * none 5629 **/ 5630 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 5631 struct ipr_mode_pages *mode_pages) 5632 { 5633 int i, entry_length; 5634 struct ipr_dev_bus_entry *bus; 5635 struct ipr_bus_attributes *bus_attr; 5636 struct ipr_mode_page28 *mode_page; 5637 5638 mode_page = ipr_get_mode_page(mode_pages, 0x28, 5639 sizeof(struct ipr_mode_page28)); 5640 5641 entry_length = mode_page->entry_length; 5642 5643 /* Loop for each device bus entry */ 5644 for (i = 0, bus = mode_page->bus; 5645 i < mode_page->num_entries; 5646 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 5647 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 5648 dev_err(&ioa_cfg->pdev->dev, 5649 "Invalid resource address reported: 0x%08X\n", 5650 IPR_GET_PHYS_LOC(bus->res_addr)); 5651 continue; 5652 } 5653 5654 bus_attr = &ioa_cfg->bus_attr[i]; 5655 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 5656 bus->bus_width = bus_attr->bus_width; 5657 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 5658 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 5659 if (bus_attr->qas_enabled) 5660 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 5661 else 5662 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 5663 } 5664 } 5665 5666 /** 5667 * ipr_build_mode_select - Build a mode select command 5668 * @ipr_cmd: ipr command struct 5669 * @res_handle: resource handle to send command to 5670 * @parm: Byte 2 of Mode Sense command 5671 * @dma_addr: DMA buffer address 5672 * @xfer_len: data transfer length 5673 * 5674 * Return value: 5675 * none 5676 **/ 5677 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 5678 __be32 res_handle, u8 parm, u32 dma_addr, 5679 u8 xfer_len) 5680 { 5681 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5682 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5683 5684 ioarcb->res_handle = res_handle; 5685 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5686 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5687 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 5688 ioarcb->cmd_pkt.cdb[1] = parm; 5689 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5690 5691 ioadl->flags_and_data_len = 5692 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len); 5693 ioadl->address = cpu_to_be32(dma_addr); 5694 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5695 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len); 5696 } 5697 5698 /** 5699 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 5700 * @ipr_cmd: ipr command struct 5701 * 5702 * This function sets up the SCSI bus attributes and sends 5703 * a Mode Select for Page 28 to activate them. 5704 * 5705 * Return value: 5706 * IPR_RC_JOB_RETURN 5707 **/ 5708 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 5709 { 5710 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5711 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5712 int length; 5713 5714 ENTER; 5715 ipr_scsi_bus_speed_limit(ioa_cfg); 5716 ipr_check_term_power(ioa_cfg, mode_pages); 5717 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 5718 length = mode_pages->hdr.length + 1; 5719 mode_pages->hdr.length = 0; 5720 5721 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5722 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5723 length); 5724 5725 ipr_cmd->job_step = ipr_setup_write_cache; 5726 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5727 5728 LEAVE; 5729 return IPR_RC_JOB_RETURN; 5730 } 5731 5732 /** 5733 * ipr_build_mode_sense - Builds a mode sense command 5734 * @ipr_cmd: ipr command struct 5735 * @res: resource entry struct 5736 * @parm: Byte 2 of mode sense command 5737 * @dma_addr: DMA address of mode sense buffer 5738 * @xfer_len: Size of DMA buffer 5739 * 5740 * Return value: 5741 * none 5742 **/ 5743 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 5744 __be32 res_handle, 5745 u8 parm, u32 dma_addr, u8 xfer_len) 5746 { 5747 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 5748 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5749 5750 ioarcb->res_handle = res_handle; 5751 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 5752 ioarcb->cmd_pkt.cdb[2] = parm; 5753 ioarcb->cmd_pkt.cdb[4] = xfer_len; 5754 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 5755 5756 ioadl->flags_and_data_len = 5757 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 5758 ioadl->address = cpu_to_be32(dma_addr); 5759 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 5760 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 5761 } 5762 5763 /** 5764 * ipr_reset_cmd_failed - Handle failure of IOA reset command 5765 * @ipr_cmd: ipr command struct 5766 * 5767 * This function handles the failure of an IOA bringup command. 5768 * 5769 * Return value: 5770 * IPR_RC_JOB_RETURN 5771 **/ 5772 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 5773 { 5774 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5775 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5776 5777 dev_err(&ioa_cfg->pdev->dev, 5778 "0x%02X failed with IOASC: 0x%08X\n", 5779 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 5780 5781 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5782 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5783 return IPR_RC_JOB_RETURN; 5784 } 5785 5786 /** 5787 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 5788 * @ipr_cmd: ipr command struct 5789 * 5790 * This function handles the failure of a Mode Sense to the IOAFP. 5791 * Some adapters do not handle all mode pages. 5792 * 5793 * Return value: 5794 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5795 **/ 5796 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 5797 { 5798 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5799 5800 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5801 ipr_cmd->job_step = ipr_setup_write_cache; 5802 return IPR_RC_JOB_CONTINUE; 5803 } 5804 5805 return ipr_reset_cmd_failed(ipr_cmd); 5806 } 5807 5808 /** 5809 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 5810 * @ipr_cmd: ipr command struct 5811 * 5812 * This function send a Page 28 mode sense to the IOA to 5813 * retrieve SCSI bus attributes. 5814 * 5815 * Return value: 5816 * IPR_RC_JOB_RETURN 5817 **/ 5818 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 5819 { 5820 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5821 5822 ENTER; 5823 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5824 0x28, ioa_cfg->vpd_cbs_dma + 5825 offsetof(struct ipr_misc_cbs, mode_pages), 5826 sizeof(struct ipr_mode_pages)); 5827 5828 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 5829 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 5830 5831 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5832 5833 LEAVE; 5834 return IPR_RC_JOB_RETURN; 5835 } 5836 5837 /** 5838 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 5839 * @ipr_cmd: ipr command struct 5840 * 5841 * This function enables dual IOA RAID support if possible. 5842 * 5843 * Return value: 5844 * IPR_RC_JOB_RETURN 5845 **/ 5846 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 5847 { 5848 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5849 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 5850 struct ipr_mode_page24 *mode_page; 5851 int length; 5852 5853 ENTER; 5854 mode_page = ipr_get_mode_page(mode_pages, 0x24, 5855 sizeof(struct ipr_mode_page24)); 5856 5857 if (mode_page) 5858 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 5859 5860 length = mode_pages->hdr.length + 1; 5861 mode_pages->hdr.length = 0; 5862 5863 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 5864 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 5865 length); 5866 5867 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5868 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5869 5870 LEAVE; 5871 return IPR_RC_JOB_RETURN; 5872 } 5873 5874 /** 5875 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 5876 * @ipr_cmd: ipr command struct 5877 * 5878 * This function handles the failure of a Mode Sense to the IOAFP. 5879 * Some adapters do not handle all mode pages. 5880 * 5881 * Return value: 5882 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 5883 **/ 5884 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 5885 { 5886 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5887 5888 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 5889 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5890 return IPR_RC_JOB_CONTINUE; 5891 } 5892 5893 return ipr_reset_cmd_failed(ipr_cmd); 5894 } 5895 5896 /** 5897 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 5898 * @ipr_cmd: ipr command struct 5899 * 5900 * This function send a mode sense to the IOA to retrieve 5901 * the IOA Advanced Function Control mode page. 5902 * 5903 * Return value: 5904 * IPR_RC_JOB_RETURN 5905 **/ 5906 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 5907 { 5908 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5909 5910 ENTER; 5911 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 5912 0x24, ioa_cfg->vpd_cbs_dma + 5913 offsetof(struct ipr_misc_cbs, mode_pages), 5914 sizeof(struct ipr_mode_pages)); 5915 5916 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 5917 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 5918 5919 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 5920 5921 LEAVE; 5922 return IPR_RC_JOB_RETURN; 5923 } 5924 5925 /** 5926 * ipr_init_res_table - Initialize the resource table 5927 * @ipr_cmd: ipr command struct 5928 * 5929 * This function looks through the existing resource table, comparing 5930 * it with the config table. This function will take care of old/new 5931 * devices and schedule adding/removing them from the mid-layer 5932 * as appropriate. 5933 * 5934 * Return value: 5935 * IPR_RC_JOB_CONTINUE 5936 **/ 5937 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 5938 { 5939 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5940 struct ipr_resource_entry *res, *temp; 5941 struct ipr_config_table_entry *cfgte; 5942 int found, i; 5943 LIST_HEAD(old_res); 5944 5945 ENTER; 5946 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ) 5947 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 5948 5949 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 5950 list_move_tail(&res->queue, &old_res); 5951 5952 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) { 5953 cfgte = &ioa_cfg->cfg_table->dev[i]; 5954 found = 0; 5955 5956 list_for_each_entry_safe(res, temp, &old_res, queue) { 5957 if (!memcmp(&res->cfgte.res_addr, 5958 &cfgte->res_addr, sizeof(cfgte->res_addr))) { 5959 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5960 found = 1; 5961 break; 5962 } 5963 } 5964 5965 if (!found) { 5966 if (list_empty(&ioa_cfg->free_res_q)) { 5967 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 5968 break; 5969 } 5970 5971 found = 1; 5972 res = list_entry(ioa_cfg->free_res_q.next, 5973 struct ipr_resource_entry, queue); 5974 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5975 ipr_init_res_entry(res); 5976 res->add_to_ml = 1; 5977 } 5978 5979 if (found) 5980 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry)); 5981 } 5982 5983 list_for_each_entry_safe(res, temp, &old_res, queue) { 5984 if (res->sdev) { 5985 res->del_from_ml = 1; 5986 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE; 5987 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 5988 } else { 5989 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 5990 } 5991 } 5992 5993 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 5994 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 5995 else 5996 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 5997 5998 LEAVE; 5999 return IPR_RC_JOB_CONTINUE; 6000 } 6001 6002 /** 6003 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6004 * @ipr_cmd: ipr command struct 6005 * 6006 * This function sends a Query IOA Configuration command 6007 * to the adapter to retrieve the IOA configuration table. 6008 * 6009 * Return value: 6010 * IPR_RC_JOB_RETURN 6011 **/ 6012 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6013 { 6014 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6015 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6016 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6017 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6018 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6019 6020 ENTER; 6021 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6022 ioa_cfg->dual_raid = 1; 6023 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6024 ucode_vpd->major_release, ucode_vpd->card_type, 6025 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6026 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6027 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6028 6029 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6030 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff; 6031 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff; 6032 6033 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6034 ioarcb->read_data_transfer_length = 6035 cpu_to_be32(sizeof(struct ipr_config_table)); 6036 6037 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma); 6038 ioadl->flags_and_data_len = 6039 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table)); 6040 6041 ipr_cmd->job_step = ipr_init_res_table; 6042 6043 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6044 6045 LEAVE; 6046 return IPR_RC_JOB_RETURN; 6047 } 6048 6049 /** 6050 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6051 * @ipr_cmd: ipr command struct 6052 * 6053 * This utility function sends an inquiry to the adapter. 6054 * 6055 * Return value: 6056 * none 6057 **/ 6058 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6059 u32 dma_addr, u8 xfer_len) 6060 { 6061 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6062 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl; 6063 6064 ENTER; 6065 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6066 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6067 6068 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6069 ioarcb->cmd_pkt.cdb[1] = flags; 6070 ioarcb->cmd_pkt.cdb[2] = page; 6071 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6072 6073 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 6074 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len); 6075 6076 ioadl->address = cpu_to_be32(dma_addr); 6077 ioadl->flags_and_data_len = 6078 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len); 6079 6080 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6081 LEAVE; 6082 } 6083 6084 /** 6085 * ipr_inquiry_page_supported - Is the given inquiry page supported 6086 * @page0: inquiry page 0 buffer 6087 * @page: page code. 6088 * 6089 * This function determines if the specified inquiry page is supported. 6090 * 6091 * Return value: 6092 * 1 if page is supported / 0 if not 6093 **/ 6094 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6095 { 6096 int i; 6097 6098 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6099 if (page0->page[i] == page) 6100 return 1; 6101 6102 return 0; 6103 } 6104 6105 /** 6106 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6107 * @ipr_cmd: ipr command struct 6108 * 6109 * This function sends a Page 0xD0 inquiry to the adapter 6110 * to retrieve adapter capabilities. 6111 * 6112 * Return value: 6113 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6114 **/ 6115 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6116 { 6117 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6118 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6119 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6120 6121 ENTER; 6122 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6123 memset(cap, 0, sizeof(*cap)); 6124 6125 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6126 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6127 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6128 sizeof(struct ipr_inquiry_cap)); 6129 return IPR_RC_JOB_RETURN; 6130 } 6131 6132 LEAVE; 6133 return IPR_RC_JOB_CONTINUE; 6134 } 6135 6136 /** 6137 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6138 * @ipr_cmd: ipr command struct 6139 * 6140 * This function sends a Page 3 inquiry to the adapter 6141 * to retrieve software VPD information. 6142 * 6143 * Return value: 6144 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6145 **/ 6146 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6147 { 6148 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6149 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6150 6151 ENTER; 6152 6153 if (!ipr_inquiry_page_supported(page0, 1)) 6154 ioa_cfg->cache_state = CACHE_NONE; 6155 6156 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6157 6158 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6159 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6160 sizeof(struct ipr_inquiry_page3)); 6161 6162 LEAVE; 6163 return IPR_RC_JOB_RETURN; 6164 } 6165 6166 /** 6167 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6168 * @ipr_cmd: ipr command struct 6169 * 6170 * This function sends a Page 0 inquiry to the adapter 6171 * to retrieve supported inquiry pages. 6172 * 6173 * Return value: 6174 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6175 **/ 6176 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6177 { 6178 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6179 char type[5]; 6180 6181 ENTER; 6182 6183 /* Grab the type out of the VPD and store it away */ 6184 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6185 type[4] = '\0'; 6186 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6187 6188 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6189 6190 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6191 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6192 sizeof(struct ipr_inquiry_page0)); 6193 6194 LEAVE; 6195 return IPR_RC_JOB_RETURN; 6196 } 6197 6198 /** 6199 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6200 * @ipr_cmd: ipr command struct 6201 * 6202 * This function sends a standard inquiry to the adapter. 6203 * 6204 * Return value: 6205 * IPR_RC_JOB_RETURN 6206 **/ 6207 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6208 { 6209 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6210 6211 ENTER; 6212 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6213 6214 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6215 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6216 sizeof(struct ipr_ioa_vpd)); 6217 6218 LEAVE; 6219 return IPR_RC_JOB_RETURN; 6220 } 6221 6222 /** 6223 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ. 6224 * @ipr_cmd: ipr command struct 6225 * 6226 * This function send an Identify Host Request Response Queue 6227 * command to establish the HRRQ with the adapter. 6228 * 6229 * Return value: 6230 * IPR_RC_JOB_RETURN 6231 **/ 6232 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd) 6233 { 6234 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6235 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6236 6237 ENTER; 6238 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 6239 6240 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 6241 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6242 6243 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6244 ioarcb->cmd_pkt.cdb[2] = 6245 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff; 6246 ioarcb->cmd_pkt.cdb[3] = 6247 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff; 6248 ioarcb->cmd_pkt.cdb[4] = 6249 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff; 6250 ioarcb->cmd_pkt.cdb[5] = 6251 ((u32) ioa_cfg->host_rrq_dma) & 0xff; 6252 ioarcb->cmd_pkt.cdb[7] = 6253 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 6254 ioarcb->cmd_pkt.cdb[8] = 6255 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 6256 6257 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 6258 6259 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6260 6261 LEAVE; 6262 return IPR_RC_JOB_RETURN; 6263 } 6264 6265 /** 6266 * ipr_reset_timer_done - Adapter reset timer function 6267 * @ipr_cmd: ipr command struct 6268 * 6269 * Description: This function is used in adapter reset processing 6270 * for timing events. If the reset_cmd pointer in the IOA 6271 * config struct is not this adapter's we are doing nested 6272 * resets and fail_all_ops will take care of freeing the 6273 * command block. 6274 * 6275 * Return value: 6276 * none 6277 **/ 6278 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 6279 { 6280 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6281 unsigned long lock_flags = 0; 6282 6283 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 6284 6285 if (ioa_cfg->reset_cmd == ipr_cmd) { 6286 list_del(&ipr_cmd->queue); 6287 ipr_cmd->done(ipr_cmd); 6288 } 6289 6290 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 6291 } 6292 6293 /** 6294 * ipr_reset_start_timer - Start a timer for adapter reset job 6295 * @ipr_cmd: ipr command struct 6296 * @timeout: timeout value 6297 * 6298 * Description: This function is used in adapter reset processing 6299 * for timing events. If the reset_cmd pointer in the IOA 6300 * config struct is not this adapter's we are doing nested 6301 * resets and fail_all_ops will take care of freeing the 6302 * command block. 6303 * 6304 * Return value: 6305 * none 6306 **/ 6307 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 6308 unsigned long timeout) 6309 { 6310 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6311 ipr_cmd->done = ipr_reset_ioa_job; 6312 6313 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6314 ipr_cmd->timer.expires = jiffies + timeout; 6315 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 6316 add_timer(&ipr_cmd->timer); 6317 } 6318 6319 /** 6320 * ipr_init_ioa_mem - Initialize ioa_cfg control block 6321 * @ioa_cfg: ioa cfg struct 6322 * 6323 * Return value: 6324 * nothing 6325 **/ 6326 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 6327 { 6328 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 6329 6330 /* Initialize Host RRQ pointers */ 6331 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 6332 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 6333 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 6334 ioa_cfg->toggle_bit = 1; 6335 6336 /* Zero out config table */ 6337 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table)); 6338 } 6339 6340 /** 6341 * ipr_reset_enable_ioa - Enable the IOA following a reset. 6342 * @ipr_cmd: ipr command struct 6343 * 6344 * This function reinitializes some control blocks and 6345 * enables destructive diagnostics on the adapter. 6346 * 6347 * Return value: 6348 * IPR_RC_JOB_RETURN 6349 **/ 6350 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 6351 { 6352 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6353 volatile u32 int_reg; 6354 6355 ENTER; 6356 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq; 6357 ipr_init_ioa_mem(ioa_cfg); 6358 6359 ioa_cfg->allow_interrupts = 1; 6360 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6361 6362 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 6363 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 6364 ioa_cfg->regs.clr_interrupt_mask_reg); 6365 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6366 return IPR_RC_JOB_CONTINUE; 6367 } 6368 6369 /* Enable destructive diagnostics on IOA */ 6370 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg); 6371 6372 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg); 6373 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 6374 6375 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 6376 6377 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 6378 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 6379 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 6380 ipr_cmd->done = ipr_reset_ioa_job; 6381 add_timer(&ipr_cmd->timer); 6382 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6383 6384 LEAVE; 6385 return IPR_RC_JOB_RETURN; 6386 } 6387 6388 /** 6389 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 6390 * @ipr_cmd: ipr command struct 6391 * 6392 * This function is invoked when an adapter dump has run out 6393 * of processing time. 6394 * 6395 * Return value: 6396 * IPR_RC_JOB_CONTINUE 6397 **/ 6398 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 6399 { 6400 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6401 6402 if (ioa_cfg->sdt_state == GET_DUMP) 6403 ioa_cfg->sdt_state = ABORT_DUMP; 6404 6405 ipr_cmd->job_step = ipr_reset_alert; 6406 6407 return IPR_RC_JOB_CONTINUE; 6408 } 6409 6410 /** 6411 * ipr_unit_check_no_data - Log a unit check/no data error log 6412 * @ioa_cfg: ioa config struct 6413 * 6414 * Logs an error indicating the adapter unit checked, but for some 6415 * reason, we were unable to fetch the unit check buffer. 6416 * 6417 * Return value: 6418 * nothing 6419 **/ 6420 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 6421 { 6422 ioa_cfg->errors_logged++; 6423 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 6424 } 6425 6426 /** 6427 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 6428 * @ioa_cfg: ioa config struct 6429 * 6430 * Fetches the unit check buffer from the adapter by clocking the data 6431 * through the mailbox register. 6432 * 6433 * Return value: 6434 * nothing 6435 **/ 6436 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 6437 { 6438 unsigned long mailbox; 6439 struct ipr_hostrcb *hostrcb; 6440 struct ipr_uc_sdt sdt; 6441 int rc, length; 6442 u32 ioasc; 6443 6444 mailbox = readl(ioa_cfg->ioa_mailbox); 6445 6446 if (!ipr_sdt_is_fmt2(mailbox)) { 6447 ipr_unit_check_no_data(ioa_cfg); 6448 return; 6449 } 6450 6451 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 6452 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 6453 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 6454 6455 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) || 6456 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) { 6457 ipr_unit_check_no_data(ioa_cfg); 6458 return; 6459 } 6460 6461 /* Find length of the first sdt entry (UC buffer) */ 6462 length = (be32_to_cpu(sdt.entry[0].end_offset) - 6463 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK; 6464 6465 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 6466 struct ipr_hostrcb, queue); 6467 list_del(&hostrcb->queue); 6468 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 6469 6470 rc = ipr_get_ldump_data_section(ioa_cfg, 6471 be32_to_cpu(sdt.entry[0].bar_str_offset), 6472 (__be32 *)&hostrcb->hcam, 6473 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 6474 6475 if (!rc) { 6476 ipr_handle_log_data(ioa_cfg, hostrcb); 6477 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc); 6478 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 6479 ioa_cfg->sdt_state == GET_DUMP) 6480 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 6481 } else 6482 ipr_unit_check_no_data(ioa_cfg); 6483 6484 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 6485 } 6486 6487 /** 6488 * ipr_reset_restore_cfg_space - Restore PCI config space. 6489 * @ipr_cmd: ipr command struct 6490 * 6491 * Description: This function restores the saved PCI config space of 6492 * the adapter, fails all outstanding ops back to the callers, and 6493 * fetches the dump/unit check if applicable to this reset. 6494 * 6495 * Return value: 6496 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6497 **/ 6498 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 6499 { 6500 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6501 int rc; 6502 6503 ENTER; 6504 rc = pci_restore_state(ioa_cfg->pdev); 6505 6506 if (rc != PCIBIOS_SUCCESSFUL) { 6507 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6508 return IPR_RC_JOB_CONTINUE; 6509 } 6510 6511 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 6512 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6513 return IPR_RC_JOB_CONTINUE; 6514 } 6515 6516 ipr_fail_all_ops(ioa_cfg); 6517 6518 if (ioa_cfg->ioa_unit_checked) { 6519 ioa_cfg->ioa_unit_checked = 0; 6520 ipr_get_unit_check_buffer(ioa_cfg); 6521 ipr_cmd->job_step = ipr_reset_alert; 6522 ipr_reset_start_timer(ipr_cmd, 0); 6523 return IPR_RC_JOB_RETURN; 6524 } 6525 6526 if (ioa_cfg->in_ioa_bringdown) { 6527 ipr_cmd->job_step = ipr_ioa_bringdown_done; 6528 } else { 6529 ipr_cmd->job_step = ipr_reset_enable_ioa; 6530 6531 if (GET_DUMP == ioa_cfg->sdt_state) { 6532 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 6533 ipr_cmd->job_step = ipr_reset_wait_for_dump; 6534 schedule_work(&ioa_cfg->work_q); 6535 return IPR_RC_JOB_RETURN; 6536 } 6537 } 6538 6539 ENTER; 6540 return IPR_RC_JOB_CONTINUE; 6541 } 6542 6543 /** 6544 * ipr_reset_bist_done - BIST has completed on the adapter. 6545 * @ipr_cmd: ipr command struct 6546 * 6547 * Description: Unblock config space and resume the reset process. 6548 * 6549 * Return value: 6550 * IPR_RC_JOB_CONTINUE 6551 **/ 6552 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 6553 { 6554 ENTER; 6555 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6556 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 6557 LEAVE; 6558 return IPR_RC_JOB_CONTINUE; 6559 } 6560 6561 /** 6562 * ipr_reset_start_bist - Run BIST on the adapter. 6563 * @ipr_cmd: ipr command struct 6564 * 6565 * Description: This function runs BIST on the adapter, then delays 2 seconds. 6566 * 6567 * Return value: 6568 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6569 **/ 6570 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 6571 { 6572 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6573 int rc; 6574 6575 ENTER; 6576 pci_block_user_cfg_access(ioa_cfg->pdev); 6577 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 6578 6579 if (rc != PCIBIOS_SUCCESSFUL) { 6580 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 6581 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 6582 rc = IPR_RC_JOB_CONTINUE; 6583 } else { 6584 ipr_cmd->job_step = ipr_reset_bist_done; 6585 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6586 rc = IPR_RC_JOB_RETURN; 6587 } 6588 6589 LEAVE; 6590 return rc; 6591 } 6592 6593 /** 6594 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 6595 * @ipr_cmd: ipr command struct 6596 * 6597 * Description: This clears PCI reset to the adapter and delays two seconds. 6598 * 6599 * Return value: 6600 * IPR_RC_JOB_RETURN 6601 **/ 6602 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 6603 { 6604 ENTER; 6605 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 6606 ipr_cmd->job_step = ipr_reset_bist_done; 6607 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 6608 LEAVE; 6609 return IPR_RC_JOB_RETURN; 6610 } 6611 6612 /** 6613 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 6614 * @ipr_cmd: ipr command struct 6615 * 6616 * Description: This asserts PCI reset to the adapter. 6617 * 6618 * Return value: 6619 * IPR_RC_JOB_RETURN 6620 **/ 6621 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 6622 { 6623 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6624 struct pci_dev *pdev = ioa_cfg->pdev; 6625 6626 ENTER; 6627 pci_block_user_cfg_access(pdev); 6628 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 6629 ipr_cmd->job_step = ipr_reset_slot_reset_done; 6630 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 6631 LEAVE; 6632 return IPR_RC_JOB_RETURN; 6633 } 6634 6635 /** 6636 * ipr_reset_allowed - Query whether or not IOA can be reset 6637 * @ioa_cfg: ioa config struct 6638 * 6639 * Return value: 6640 * 0 if reset not allowed / non-zero if reset is allowed 6641 **/ 6642 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 6643 { 6644 volatile u32 temp_reg; 6645 6646 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 6647 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 6648 } 6649 6650 /** 6651 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 6652 * @ipr_cmd: ipr command struct 6653 * 6654 * Description: This function waits for adapter permission to run BIST, 6655 * then runs BIST. If the adapter does not give permission after a 6656 * reasonable time, we will reset the adapter anyway. The impact of 6657 * resetting the adapter without warning the adapter is the risk of 6658 * losing the persistent error log on the adapter. If the adapter is 6659 * reset while it is writing to the flash on the adapter, the flash 6660 * segment will have bad ECC and be zeroed. 6661 * 6662 * Return value: 6663 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6664 **/ 6665 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 6666 { 6667 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6668 int rc = IPR_RC_JOB_RETURN; 6669 6670 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 6671 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 6672 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6673 } else { 6674 ipr_cmd->job_step = ioa_cfg->reset; 6675 rc = IPR_RC_JOB_CONTINUE; 6676 } 6677 6678 return rc; 6679 } 6680 6681 /** 6682 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 6683 * @ipr_cmd: ipr command struct 6684 * 6685 * Description: This function alerts the adapter that it will be reset. 6686 * If memory space is not currently enabled, proceed directly 6687 * to running BIST on the adapter. The timer must always be started 6688 * so we guarantee we do not run BIST from ipr_isr. 6689 * 6690 * Return value: 6691 * IPR_RC_JOB_RETURN 6692 **/ 6693 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 6694 { 6695 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6696 u16 cmd_reg; 6697 int rc; 6698 6699 ENTER; 6700 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 6701 6702 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 6703 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 6704 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg); 6705 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 6706 } else { 6707 ipr_cmd->job_step = ioa_cfg->reset; 6708 } 6709 6710 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 6711 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 6712 6713 LEAVE; 6714 return IPR_RC_JOB_RETURN; 6715 } 6716 6717 /** 6718 * ipr_reset_ucode_download_done - Microcode download completion 6719 * @ipr_cmd: ipr command struct 6720 * 6721 * Description: This function unmaps the microcode download buffer. 6722 * 6723 * Return value: 6724 * IPR_RC_JOB_CONTINUE 6725 **/ 6726 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 6727 { 6728 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6729 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6730 6731 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 6732 sglist->num_sg, DMA_TO_DEVICE); 6733 6734 ipr_cmd->job_step = ipr_reset_alert; 6735 return IPR_RC_JOB_CONTINUE; 6736 } 6737 6738 /** 6739 * ipr_reset_ucode_download - Download microcode to the adapter 6740 * @ipr_cmd: ipr command struct 6741 * 6742 * Description: This function checks to see if it there is microcode 6743 * to download to the adapter. If there is, a download is performed. 6744 * 6745 * Return value: 6746 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6747 **/ 6748 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 6749 { 6750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6751 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 6752 6753 ENTER; 6754 ipr_cmd->job_step = ipr_reset_alert; 6755 6756 if (!sglist) 6757 return IPR_RC_JOB_CONTINUE; 6758 6759 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6760 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6761 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 6762 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 6763 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 6764 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 6765 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 6766 6767 ipr_build_ucode_ioadl(ipr_cmd, sglist); 6768 ipr_cmd->job_step = ipr_reset_ucode_download_done; 6769 6770 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6771 IPR_WRITE_BUFFER_TIMEOUT); 6772 6773 LEAVE; 6774 return IPR_RC_JOB_RETURN; 6775 } 6776 6777 /** 6778 * ipr_reset_shutdown_ioa - Shutdown the adapter 6779 * @ipr_cmd: ipr command struct 6780 * 6781 * Description: This function issues an adapter shutdown of the 6782 * specified type to the specified adapter as part of the 6783 * adapter reset job. 6784 * 6785 * Return value: 6786 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6787 **/ 6788 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 6789 { 6790 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6791 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 6792 unsigned long timeout; 6793 int rc = IPR_RC_JOB_CONTINUE; 6794 6795 ENTER; 6796 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 6797 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6798 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6799 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 6800 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 6801 6802 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 6803 timeout = IPR_SHUTDOWN_TIMEOUT; 6804 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 6805 timeout = IPR_INTERNAL_TIMEOUT; 6806 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6807 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 6808 else 6809 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 6810 6811 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 6812 6813 rc = IPR_RC_JOB_RETURN; 6814 ipr_cmd->job_step = ipr_reset_ucode_download; 6815 } else 6816 ipr_cmd->job_step = ipr_reset_alert; 6817 6818 LEAVE; 6819 return rc; 6820 } 6821 6822 /** 6823 * ipr_reset_ioa_job - Adapter reset job 6824 * @ipr_cmd: ipr command struct 6825 * 6826 * Description: This function is the job router for the adapter reset job. 6827 * 6828 * Return value: 6829 * none 6830 **/ 6831 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 6832 { 6833 u32 rc, ioasc; 6834 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6835 6836 do { 6837 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6838 6839 if (ioa_cfg->reset_cmd != ipr_cmd) { 6840 /* 6841 * We are doing nested adapter resets and this is 6842 * not the current reset job. 6843 */ 6844 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6845 return; 6846 } 6847 6848 if (IPR_IOASC_SENSE_KEY(ioasc)) { 6849 rc = ipr_cmd->job_step_failed(ipr_cmd); 6850 if (rc == IPR_RC_JOB_RETURN) 6851 return; 6852 } 6853 6854 ipr_reinit_ipr_cmnd(ipr_cmd); 6855 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 6856 rc = ipr_cmd->job_step(ipr_cmd); 6857 } while(rc == IPR_RC_JOB_CONTINUE); 6858 } 6859 6860 /** 6861 * _ipr_initiate_ioa_reset - Initiate an adapter reset 6862 * @ioa_cfg: ioa config struct 6863 * @job_step: first job step of reset job 6864 * @shutdown_type: shutdown type 6865 * 6866 * Description: This function will initiate the reset of the given adapter 6867 * starting at the selected job step. 6868 * If the caller needs to wait on the completion of the reset, 6869 * the caller must sleep on the reset_wait_q. 6870 * 6871 * Return value: 6872 * none 6873 **/ 6874 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6875 int (*job_step) (struct ipr_cmnd *), 6876 enum ipr_shutdown_type shutdown_type) 6877 { 6878 struct ipr_cmnd *ipr_cmd; 6879 6880 ioa_cfg->in_reset_reload = 1; 6881 ioa_cfg->allow_cmds = 0; 6882 scsi_block_requests(ioa_cfg->host); 6883 6884 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6885 ioa_cfg->reset_cmd = ipr_cmd; 6886 ipr_cmd->job_step = job_step; 6887 ipr_cmd->u.shutdown_type = shutdown_type; 6888 6889 ipr_reset_ioa_job(ipr_cmd); 6890 } 6891 6892 /** 6893 * ipr_initiate_ioa_reset - Initiate an adapter reset 6894 * @ioa_cfg: ioa config struct 6895 * @shutdown_type: shutdown type 6896 * 6897 * Description: This function will initiate the reset of the given adapter. 6898 * If the caller needs to wait on the completion of the reset, 6899 * the caller must sleep on the reset_wait_q. 6900 * 6901 * Return value: 6902 * none 6903 **/ 6904 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 6905 enum ipr_shutdown_type shutdown_type) 6906 { 6907 if (ioa_cfg->ioa_is_dead) 6908 return; 6909 6910 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 6911 ioa_cfg->sdt_state = ABORT_DUMP; 6912 6913 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 6914 dev_err(&ioa_cfg->pdev->dev, 6915 "IOA taken offline - error recovery failed\n"); 6916 6917 ioa_cfg->reset_retries = 0; 6918 ioa_cfg->ioa_is_dead = 1; 6919 6920 if (ioa_cfg->in_ioa_bringdown) { 6921 ioa_cfg->reset_cmd = NULL; 6922 ioa_cfg->in_reset_reload = 0; 6923 ipr_fail_all_ops(ioa_cfg); 6924 wake_up_all(&ioa_cfg->reset_wait_q); 6925 6926 spin_unlock_irq(ioa_cfg->host->host_lock); 6927 scsi_unblock_requests(ioa_cfg->host); 6928 spin_lock_irq(ioa_cfg->host->host_lock); 6929 return; 6930 } else { 6931 ioa_cfg->in_ioa_bringdown = 1; 6932 shutdown_type = IPR_SHUTDOWN_NONE; 6933 } 6934 } 6935 6936 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 6937 shutdown_type); 6938 } 6939 6940 /** 6941 * ipr_reset_freeze - Hold off all I/O activity 6942 * @ipr_cmd: ipr command struct 6943 * 6944 * Description: If the PCI slot is frozen, hold off all I/O 6945 * activity; then, as soon as the slot is available again, 6946 * initiate an adapter reset. 6947 */ 6948 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 6949 { 6950 /* Disallow new interrupts, avoid loop */ 6951 ipr_cmd->ioa_cfg->allow_interrupts = 0; 6952 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 6953 ipr_cmd->done = ipr_reset_ioa_job; 6954 return IPR_RC_JOB_RETURN; 6955 } 6956 6957 /** 6958 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 6959 * @pdev: PCI device struct 6960 * 6961 * Description: This routine is called to tell us that the PCI bus 6962 * is down. Can't do anything here, except put the device driver 6963 * into a holding pattern, waiting for the PCI bus to come back. 6964 */ 6965 static void ipr_pci_frozen(struct pci_dev *pdev) 6966 { 6967 unsigned long flags = 0; 6968 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6969 6970 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6971 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 6972 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6973 } 6974 6975 /** 6976 * ipr_pci_slot_reset - Called when PCI slot has been reset. 6977 * @pdev: PCI device struct 6978 * 6979 * Description: This routine is called by the pci error recovery 6980 * code after the PCI slot has been reset, just before we 6981 * should resume normal operations. 6982 */ 6983 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 6984 { 6985 unsigned long flags = 0; 6986 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 6987 6988 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6989 if (ioa_cfg->needs_warm_reset) 6990 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6991 else 6992 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 6993 IPR_SHUTDOWN_NONE); 6994 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6995 return PCI_ERS_RESULT_RECOVERED; 6996 } 6997 6998 /** 6999 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 7000 * @pdev: PCI device struct 7001 * 7002 * Description: This routine is called when the PCI bus has 7003 * permanently failed. 7004 */ 7005 static void ipr_pci_perm_failure(struct pci_dev *pdev) 7006 { 7007 unsigned long flags = 0; 7008 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7009 7010 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7011 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7012 ioa_cfg->sdt_state = ABORT_DUMP; 7013 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 7014 ioa_cfg->in_ioa_bringdown = 1; 7015 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7016 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7017 } 7018 7019 /** 7020 * ipr_pci_error_detected - Called when a PCI error is detected. 7021 * @pdev: PCI device struct 7022 * @state: PCI channel state 7023 * 7024 * Description: Called when a PCI error is detected. 7025 * 7026 * Return value: 7027 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7028 */ 7029 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7030 pci_channel_state_t state) 7031 { 7032 switch (state) { 7033 case pci_channel_io_frozen: 7034 ipr_pci_frozen(pdev); 7035 return PCI_ERS_RESULT_NEED_RESET; 7036 case pci_channel_io_perm_failure: 7037 ipr_pci_perm_failure(pdev); 7038 return PCI_ERS_RESULT_DISCONNECT; 7039 break; 7040 default: 7041 break; 7042 } 7043 return PCI_ERS_RESULT_NEED_RESET; 7044 } 7045 7046 /** 7047 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7048 * @ioa_cfg: ioa cfg struct 7049 * 7050 * Description: This is the second phase of adapter intialization 7051 * This function takes care of initilizing the adapter to the point 7052 * where it can accept new commands. 7053 7054 * Return value: 7055 * 0 on sucess / -EIO on failure 7056 **/ 7057 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7058 { 7059 int rc = 0; 7060 unsigned long host_lock_flags = 0; 7061 7062 ENTER; 7063 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7064 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7065 if (ioa_cfg->needs_hard_reset) { 7066 ioa_cfg->needs_hard_reset = 0; 7067 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7068 } else 7069 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7070 IPR_SHUTDOWN_NONE); 7071 7072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7073 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7074 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7075 7076 if (ioa_cfg->ioa_is_dead) { 7077 rc = -EIO; 7078 } else if (ipr_invalid_adapter(ioa_cfg)) { 7079 if (!ipr_testmode) 7080 rc = -EIO; 7081 7082 dev_err(&ioa_cfg->pdev->dev, 7083 "Adapter not supported in this hardware configuration.\n"); 7084 } 7085 7086 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7087 7088 LEAVE; 7089 return rc; 7090 } 7091 7092 /** 7093 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7094 * @ioa_cfg: ioa config struct 7095 * 7096 * Return value: 7097 * none 7098 **/ 7099 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7100 { 7101 int i; 7102 7103 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7104 if (ioa_cfg->ipr_cmnd_list[i]) 7105 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7106 ioa_cfg->ipr_cmnd_list[i], 7107 ioa_cfg->ipr_cmnd_list_dma[i]); 7108 7109 ioa_cfg->ipr_cmnd_list[i] = NULL; 7110 } 7111 7112 if (ioa_cfg->ipr_cmd_pool) 7113 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7114 7115 ioa_cfg->ipr_cmd_pool = NULL; 7116 } 7117 7118 /** 7119 * ipr_free_mem - Frees memory allocated for an adapter 7120 * @ioa_cfg: ioa cfg struct 7121 * 7122 * Return value: 7123 * nothing 7124 **/ 7125 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7126 { 7127 int i; 7128 7129 kfree(ioa_cfg->res_entries); 7130 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7131 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7132 ipr_free_cmd_blks(ioa_cfg); 7133 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7134 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7135 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table), 7136 ioa_cfg->cfg_table, 7137 ioa_cfg->cfg_table_dma); 7138 7139 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7140 pci_free_consistent(ioa_cfg->pdev, 7141 sizeof(struct ipr_hostrcb), 7142 ioa_cfg->hostrcb[i], 7143 ioa_cfg->hostrcb_dma[i]); 7144 } 7145 7146 ipr_free_dump(ioa_cfg); 7147 kfree(ioa_cfg->trace); 7148 } 7149 7150 /** 7151 * ipr_free_all_resources - Free all allocated resources for an adapter. 7152 * @ipr_cmd: ipr command struct 7153 * 7154 * This function frees all allocated resources for the 7155 * specified adapter. 7156 * 7157 * Return value: 7158 * none 7159 **/ 7160 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 7161 { 7162 struct pci_dev *pdev = ioa_cfg->pdev; 7163 7164 ENTER; 7165 free_irq(pdev->irq, ioa_cfg); 7166 iounmap(ioa_cfg->hdw_dma_regs); 7167 pci_release_regions(pdev); 7168 ipr_free_mem(ioa_cfg); 7169 scsi_host_put(ioa_cfg->host); 7170 pci_disable_device(pdev); 7171 LEAVE; 7172 } 7173 7174 /** 7175 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 7176 * @ioa_cfg: ioa config struct 7177 * 7178 * Return value: 7179 * 0 on success / -ENOMEM on allocation failure 7180 **/ 7181 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7182 { 7183 struct ipr_cmnd *ipr_cmd; 7184 struct ipr_ioarcb *ioarcb; 7185 dma_addr_t dma_addr; 7186 int i; 7187 7188 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 7189 sizeof(struct ipr_cmnd), 8, 0); 7190 7191 if (!ioa_cfg->ipr_cmd_pool) 7192 return -ENOMEM; 7193 7194 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7195 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 7196 7197 if (!ipr_cmd) { 7198 ipr_free_cmd_blks(ioa_cfg); 7199 return -ENOMEM; 7200 } 7201 7202 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 7203 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 7204 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 7205 7206 ioarcb = &ipr_cmd->ioarcb; 7207 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 7208 ioarcb->host_response_handle = cpu_to_be32(i << 2); 7209 ioarcb->write_ioadl_addr = 7210 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl)); 7211 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 7212 ioarcb->ioasa_host_pci_addr = 7213 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 7214 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 7215 ipr_cmd->cmd_index = i; 7216 ipr_cmd->ioa_cfg = ioa_cfg; 7217 ipr_cmd->sense_buffer_dma = dma_addr + 7218 offsetof(struct ipr_cmnd, sense_buffer); 7219 7220 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7221 } 7222 7223 return 0; 7224 } 7225 7226 /** 7227 * ipr_alloc_mem - Allocate memory for an adapter 7228 * @ioa_cfg: ioa config struct 7229 * 7230 * Return value: 7231 * 0 on success / non-zero for error 7232 **/ 7233 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 7234 { 7235 struct pci_dev *pdev = ioa_cfg->pdev; 7236 int i, rc = -ENOMEM; 7237 7238 ENTER; 7239 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 7240 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL); 7241 7242 if (!ioa_cfg->res_entries) 7243 goto out; 7244 7245 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++) 7246 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 7247 7248 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 7249 sizeof(struct ipr_misc_cbs), 7250 &ioa_cfg->vpd_cbs_dma); 7251 7252 if (!ioa_cfg->vpd_cbs) 7253 goto out_free_res_entries; 7254 7255 if (ipr_alloc_cmd_blks(ioa_cfg)) 7256 goto out_free_vpd_cbs; 7257 7258 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 7259 sizeof(u32) * IPR_NUM_CMD_BLKS, 7260 &ioa_cfg->host_rrq_dma); 7261 7262 if (!ioa_cfg->host_rrq) 7263 goto out_ipr_free_cmd_blocks; 7264 7265 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 7266 sizeof(struct ipr_config_table), 7267 &ioa_cfg->cfg_table_dma); 7268 7269 if (!ioa_cfg->cfg_table) 7270 goto out_free_host_rrq; 7271 7272 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7273 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 7274 sizeof(struct ipr_hostrcb), 7275 &ioa_cfg->hostrcb_dma[i]); 7276 7277 if (!ioa_cfg->hostrcb[i]) 7278 goto out_free_hostrcb_dma; 7279 7280 ioa_cfg->hostrcb[i]->hostrcb_dma = 7281 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 7282 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 7283 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 7284 } 7285 7286 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 7287 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 7288 7289 if (!ioa_cfg->trace) 7290 goto out_free_hostrcb_dma; 7291 7292 rc = 0; 7293 out: 7294 LEAVE; 7295 return rc; 7296 7297 out_free_hostrcb_dma: 7298 while (i-- > 0) { 7299 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 7300 ioa_cfg->hostrcb[i], 7301 ioa_cfg->hostrcb_dma[i]); 7302 } 7303 pci_free_consistent(pdev, sizeof(struct ipr_config_table), 7304 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma); 7305 out_free_host_rrq: 7306 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7307 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7308 out_ipr_free_cmd_blocks: 7309 ipr_free_cmd_blks(ioa_cfg); 7310 out_free_vpd_cbs: 7311 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 7312 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7313 out_free_res_entries: 7314 kfree(ioa_cfg->res_entries); 7315 goto out; 7316 } 7317 7318 /** 7319 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 7320 * @ioa_cfg: ioa config struct 7321 * 7322 * Return value: 7323 * none 7324 **/ 7325 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 7326 { 7327 int i; 7328 7329 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 7330 ioa_cfg->bus_attr[i].bus = i; 7331 ioa_cfg->bus_attr[i].qas_enabled = 0; 7332 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 7333 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 7334 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 7335 else 7336 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 7337 } 7338 } 7339 7340 /** 7341 * ipr_init_ioa_cfg - Initialize IOA config struct 7342 * @ioa_cfg: ioa config struct 7343 * @host: scsi host struct 7344 * @pdev: PCI dev struct 7345 * 7346 * Return value: 7347 * none 7348 **/ 7349 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 7350 struct Scsi_Host *host, struct pci_dev *pdev) 7351 { 7352 const struct ipr_interrupt_offsets *p; 7353 struct ipr_interrupts *t; 7354 void __iomem *base; 7355 7356 ioa_cfg->host = host; 7357 ioa_cfg->pdev = pdev; 7358 ioa_cfg->log_level = ipr_log_level; 7359 ioa_cfg->doorbell = IPR_DOORBELL; 7360 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 7361 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 7362 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 7363 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 7364 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 7365 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 7366 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 7367 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 7368 7369 INIT_LIST_HEAD(&ioa_cfg->free_q); 7370 INIT_LIST_HEAD(&ioa_cfg->pending_q); 7371 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 7372 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 7373 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 7374 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 7375 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 7376 init_waitqueue_head(&ioa_cfg->reset_wait_q); 7377 ioa_cfg->sdt_state = INACTIVE; 7378 if (ipr_enable_cache) 7379 ioa_cfg->cache_state = CACHE_ENABLED; 7380 else 7381 ioa_cfg->cache_state = CACHE_DISABLED; 7382 7383 ipr_initialize_bus_attr(ioa_cfg); 7384 7385 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 7386 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 7387 host->max_channel = IPR_MAX_BUS_TO_SCAN; 7388 host->unique_id = host->host_no; 7389 host->max_cmd_len = IPR_MAX_CDB_LEN; 7390 pci_set_drvdata(pdev, ioa_cfg); 7391 7392 p = &ioa_cfg->chip_cfg->regs; 7393 t = &ioa_cfg->regs; 7394 base = ioa_cfg->hdw_dma_regs; 7395 7396 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 7397 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 7398 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 7399 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 7400 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 7401 t->ioarrin_reg = base + p->ioarrin_reg; 7402 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 7403 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 7404 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 7405 } 7406 7407 /** 7408 * ipr_get_chip_cfg - Find adapter chip configuration 7409 * @dev_id: PCI device id struct 7410 * 7411 * Return value: 7412 * ptr to chip config on success / NULL on failure 7413 **/ 7414 static const struct ipr_chip_cfg_t * __devinit 7415 ipr_get_chip_cfg(const struct pci_device_id *dev_id) 7416 { 7417 int i; 7418 7419 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 7420 if (ipr_chip[i].vendor == dev_id->vendor && 7421 ipr_chip[i].device == dev_id->device) 7422 return ipr_chip[i].cfg; 7423 return NULL; 7424 } 7425 7426 /** 7427 * ipr_probe_ioa - Allocates memory and does first stage of initialization 7428 * @pdev: PCI device struct 7429 * @dev_id: PCI device id struct 7430 * 7431 * Return value: 7432 * 0 on success / non-zero on failure 7433 **/ 7434 static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 7435 const struct pci_device_id *dev_id) 7436 { 7437 struct ipr_ioa_cfg *ioa_cfg; 7438 struct Scsi_Host *host; 7439 unsigned long ipr_regs_pci; 7440 void __iomem *ipr_regs; 7441 int rc = PCIBIOS_SUCCESSFUL; 7442 volatile u32 mask, uproc, interrupts; 7443 7444 ENTER; 7445 7446 if ((rc = pci_enable_device(pdev))) { 7447 dev_err(&pdev->dev, "Cannot enable adapter\n"); 7448 goto out; 7449 } 7450 7451 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 7452 7453 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 7454 7455 if (!host) { 7456 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 7457 rc = -ENOMEM; 7458 goto out_disable; 7459 } 7460 7461 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 7462 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 7463 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 7464 sata_port_info.flags, &ipr_sata_ops); 7465 7466 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id); 7467 7468 if (!ioa_cfg->chip_cfg) { 7469 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 7470 dev_id->vendor, dev_id->device); 7471 goto out_scsi_host_put; 7472 } 7473 7474 if (ipr_transop_timeout) 7475 ioa_cfg->transop_timeout = ipr_transop_timeout; 7476 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 7477 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 7478 else 7479 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 7480 7481 ioa_cfg->revid = pdev->revision; 7482 7483 ipr_regs_pci = pci_resource_start(pdev, 0); 7484 7485 rc = pci_request_regions(pdev, IPR_NAME); 7486 if (rc < 0) { 7487 dev_err(&pdev->dev, 7488 "Couldn't register memory range of registers\n"); 7489 goto out_scsi_host_put; 7490 } 7491 7492 ipr_regs = ioremap(ipr_regs_pci, pci_resource_len(pdev, 0)); 7493 7494 if (!ipr_regs) { 7495 dev_err(&pdev->dev, 7496 "Couldn't map memory range of registers\n"); 7497 rc = -ENOMEM; 7498 goto out_release_regions; 7499 } 7500 7501 ioa_cfg->hdw_dma_regs = ipr_regs; 7502 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 7503 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 7504 7505 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 7506 7507 pci_set_master(pdev); 7508 7509 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK); 7510 if (rc < 0) { 7511 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 7512 goto cleanup_nomem; 7513 } 7514 7515 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 7516 ioa_cfg->chip_cfg->cache_line_size); 7517 7518 if (rc != PCIBIOS_SUCCESSFUL) { 7519 dev_err(&pdev->dev, "Write of cache line size failed\n"); 7520 rc = -EIO; 7521 goto cleanup_nomem; 7522 } 7523 7524 /* Save away PCI config space for use following IOA reset */ 7525 rc = pci_save_state(pdev); 7526 7527 if (rc != PCIBIOS_SUCCESSFUL) { 7528 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 7529 rc = -EIO; 7530 goto cleanup_nomem; 7531 } 7532 7533 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 7534 goto cleanup_nomem; 7535 7536 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 7537 goto cleanup_nomem; 7538 7539 rc = ipr_alloc_mem(ioa_cfg); 7540 if (rc < 0) { 7541 dev_err(&pdev->dev, 7542 "Couldn't allocate enough memory for device driver!\n"); 7543 goto cleanup_nomem; 7544 } 7545 7546 /* 7547 * If HRRQ updated interrupt is not masked, or reset alert is set, 7548 * the card is in an unknown state and needs a hard reset 7549 */ 7550 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7551 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); 7552 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg); 7553 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 7554 ioa_cfg->needs_hard_reset = 1; 7555 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 7556 ioa_cfg->needs_hard_reset = 1; 7557 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 7558 ioa_cfg->ioa_unit_checked = 1; 7559 7560 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 7561 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg); 7562 7563 if (rc) { 7564 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 7565 pdev->irq, rc); 7566 goto cleanup_nolog; 7567 } 7568 7569 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 7570 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 7571 ioa_cfg->needs_warm_reset = 1; 7572 ioa_cfg->reset = ipr_reset_slot_reset; 7573 } else 7574 ioa_cfg->reset = ipr_reset_start_bist; 7575 7576 spin_lock(&ipr_driver_lock); 7577 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 7578 spin_unlock(&ipr_driver_lock); 7579 7580 LEAVE; 7581 out: 7582 return rc; 7583 7584 cleanup_nolog: 7585 ipr_free_mem(ioa_cfg); 7586 cleanup_nomem: 7587 iounmap(ipr_regs); 7588 out_release_regions: 7589 pci_release_regions(pdev); 7590 out_scsi_host_put: 7591 scsi_host_put(host); 7592 out_disable: 7593 pci_disable_device(pdev); 7594 goto out; 7595 } 7596 7597 /** 7598 * ipr_scan_vsets - Scans for VSET devices 7599 * @ioa_cfg: ioa config struct 7600 * 7601 * Description: Since the VSET resources do not follow SAM in that we can have 7602 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 7603 * 7604 * Return value: 7605 * none 7606 **/ 7607 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 7608 { 7609 int target, lun; 7610 7611 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 7612 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 7613 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 7614 } 7615 7616 /** 7617 * ipr_initiate_ioa_bringdown - Bring down an adapter 7618 * @ioa_cfg: ioa config struct 7619 * @shutdown_type: shutdown type 7620 * 7621 * Description: This function will initiate bringing down the adapter. 7622 * This consists of issuing an IOA shutdown to the adapter 7623 * to flush the cache, and running BIST. 7624 * If the caller needs to wait on the completion of the reset, 7625 * the caller must sleep on the reset_wait_q. 7626 * 7627 * Return value: 7628 * none 7629 **/ 7630 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 7631 enum ipr_shutdown_type shutdown_type) 7632 { 7633 ENTER; 7634 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7635 ioa_cfg->sdt_state = ABORT_DUMP; 7636 ioa_cfg->reset_retries = 0; 7637 ioa_cfg->in_ioa_bringdown = 1; 7638 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 7639 LEAVE; 7640 } 7641 7642 /** 7643 * __ipr_remove - Remove a single adapter 7644 * @pdev: pci device struct 7645 * 7646 * Adapter hot plug remove entry point. 7647 * 7648 * Return value: 7649 * none 7650 **/ 7651 static void __ipr_remove(struct pci_dev *pdev) 7652 { 7653 unsigned long host_lock_flags = 0; 7654 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7655 ENTER; 7656 7657 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7658 while(ioa_cfg->in_reset_reload) { 7659 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7660 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7661 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7662 } 7663 7664 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7665 7666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7667 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7668 flush_scheduled_work(); 7669 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7670 7671 spin_lock(&ipr_driver_lock); 7672 list_del(&ioa_cfg->queue); 7673 spin_unlock(&ipr_driver_lock); 7674 7675 if (ioa_cfg->sdt_state == ABORT_DUMP) 7676 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7677 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7678 7679 ipr_free_all_resources(ioa_cfg); 7680 7681 LEAVE; 7682 } 7683 7684 /** 7685 * ipr_remove - IOA hot plug remove entry point 7686 * @pdev: pci device struct 7687 * 7688 * Adapter hot plug remove entry point. 7689 * 7690 * Return value: 7691 * none 7692 **/ 7693 static void ipr_remove(struct pci_dev *pdev) 7694 { 7695 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7696 7697 ENTER; 7698 7699 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7700 &ipr_trace_attr); 7701 ipr_remove_dump_file(&ioa_cfg->host->shost_classdev.kobj, 7702 &ipr_dump_attr); 7703 scsi_remove_host(ioa_cfg->host); 7704 7705 __ipr_remove(pdev); 7706 7707 LEAVE; 7708 } 7709 7710 /** 7711 * ipr_probe - Adapter hot plug add entry point 7712 * 7713 * Return value: 7714 * 0 on success / non-zero on failure 7715 **/ 7716 static int __devinit ipr_probe(struct pci_dev *pdev, 7717 const struct pci_device_id *dev_id) 7718 { 7719 struct ipr_ioa_cfg *ioa_cfg; 7720 int rc; 7721 7722 rc = ipr_probe_ioa(pdev, dev_id); 7723 7724 if (rc) 7725 return rc; 7726 7727 ioa_cfg = pci_get_drvdata(pdev); 7728 rc = ipr_probe_ioa_part2(ioa_cfg); 7729 7730 if (rc) { 7731 __ipr_remove(pdev); 7732 return rc; 7733 } 7734 7735 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 7736 7737 if (rc) { 7738 __ipr_remove(pdev); 7739 return rc; 7740 } 7741 7742 rc = ipr_create_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7743 &ipr_trace_attr); 7744 7745 if (rc) { 7746 scsi_remove_host(ioa_cfg->host); 7747 __ipr_remove(pdev); 7748 return rc; 7749 } 7750 7751 rc = ipr_create_dump_file(&ioa_cfg->host->shost_classdev.kobj, 7752 &ipr_dump_attr); 7753 7754 if (rc) { 7755 ipr_remove_trace_file(&ioa_cfg->host->shost_classdev.kobj, 7756 &ipr_trace_attr); 7757 scsi_remove_host(ioa_cfg->host); 7758 __ipr_remove(pdev); 7759 return rc; 7760 } 7761 7762 scsi_scan_host(ioa_cfg->host); 7763 ipr_scan_vsets(ioa_cfg); 7764 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 7765 ioa_cfg->allow_ml_add_del = 1; 7766 ioa_cfg->host->max_channel = IPR_VSET_BUS; 7767 schedule_work(&ioa_cfg->work_q); 7768 return 0; 7769 } 7770 7771 /** 7772 * ipr_shutdown - Shutdown handler. 7773 * @pdev: pci device struct 7774 * 7775 * This function is invoked upon system shutdown/reboot. It will issue 7776 * an adapter shutdown to the adapter to flush the write cache. 7777 * 7778 * Return value: 7779 * none 7780 **/ 7781 static void ipr_shutdown(struct pci_dev *pdev) 7782 { 7783 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7784 unsigned long lock_flags = 0; 7785 7786 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7787 while(ioa_cfg->in_reset_reload) { 7788 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7789 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7790 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7791 } 7792 7793 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 7794 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7795 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7796 } 7797 7798 static struct pci_device_id ipr_pci_table[] __devinitdata = { 7799 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7800 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 7801 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7802 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 7803 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7804 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 7805 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 7806 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 7807 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7808 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 7809 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7810 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 7811 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7812 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 7813 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 7814 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 7815 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7816 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7818 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 7819 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7820 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7821 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_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, 7825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 7826 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7827 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 7828 IPR_USE_LONG_TRANSOP_TIMEOUT}, 7829 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 7830 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 7831 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7832 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7833 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 7834 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7835 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 7837 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7838 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7839 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 7840 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 7841 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 7842 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 7843 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 7844 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 7845 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7846 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 7847 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7848 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 7849 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7850 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 7851 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 7852 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7853 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E, 7854 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 7855 IPR_USE_LONG_TRANSOP_TIMEOUT }, 7856 { } 7857 }; 7858 MODULE_DEVICE_TABLE(pci, ipr_pci_table); 7859 7860 static struct pci_error_handlers ipr_err_handler = { 7861 .error_detected = ipr_pci_error_detected, 7862 .slot_reset = ipr_pci_slot_reset, 7863 }; 7864 7865 static struct pci_driver ipr_driver = { 7866 .name = IPR_NAME, 7867 .id_table = ipr_pci_table, 7868 .probe = ipr_probe, 7869 .remove = ipr_remove, 7870 .shutdown = ipr_shutdown, 7871 .err_handler = &ipr_err_handler, 7872 .dynids.use_driver_data = 1 7873 }; 7874 7875 /** 7876 * ipr_init - Module entry point 7877 * 7878 * Return value: 7879 * 0 on success / negative value on failure 7880 **/ 7881 static int __init ipr_init(void) 7882 { 7883 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 7884 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 7885 7886 return pci_register_driver(&ipr_driver); 7887 } 7888 7889 /** 7890 * ipr_exit - Module unload 7891 * 7892 * Module unload entry point. 7893 * 7894 * Return value: 7895 * none 7896 **/ 7897 static void __exit ipr_exit(void) 7898 { 7899 pci_unregister_driver(&ipr_driver); 7900 } 7901 7902 module_init(ipr_init); 7903 module_exit(ipr_exit); 7904