ipr.c revision 5aa3a333eaae1016f5a72f9e0e2dce39c08762f8
1/* 2 * ipr.c -- driver for IBM Power Linux RAID adapters 3 * 4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation 5 * 6 * Copyright (C) 2003, 2004 IBM Corporation 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or 11 * (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 21 * 22 */ 23 24/* 25 * Notes: 26 * 27 * This driver is used to control the following SCSI adapters: 28 * 29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B 30 * 31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter 32 * PCI-X Dual Channel Ultra 320 SCSI Adapter 33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card 34 * Embedded SCSI adapter on p615 and p655 systems 35 * 36 * Supported Hardware Features: 37 * - Ultra 320 SCSI controller 38 * - PCI-X host interface 39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine 40 * - Non-Volatile Write Cache 41 * - Supports attachment of non-RAID disks, tape, and optical devices 42 * - RAID Levels 0, 5, 10 43 * - Hot spare 44 * - Background Parity Checking 45 * - Background Data Scrubbing 46 * - Ability to increase the capacity of an existing RAID 5 disk array 47 * by adding disks 48 * 49 * Driver Features: 50 * - Tagged command queuing 51 * - Adapter microcode download 52 * - PCI hot plug 53 * - SCSI device hot plug 54 * 55 */ 56 57#include <linux/fs.h> 58#include <linux/init.h> 59#include <linux/types.h> 60#include <linux/errno.h> 61#include <linux/kernel.h> 62#include <linux/ioport.h> 63#include <linux/delay.h> 64#include <linux/pci.h> 65#include <linux/wait.h> 66#include <linux/spinlock.h> 67#include <linux/sched.h> 68#include <linux/interrupt.h> 69#include <linux/blkdev.h> 70#include <linux/firmware.h> 71#include <linux/module.h> 72#include <linux/moduleparam.h> 73#include <linux/libata.h> 74#include <linux/hdreg.h> 75#include <linux/reboot.h> 76#include <linux/stringify.h> 77#include <asm/io.h> 78#include <asm/irq.h> 79#include <asm/processor.h> 80#include <scsi/scsi.h> 81#include <scsi/scsi_host.h> 82#include <scsi/scsi_tcq.h> 83#include <scsi/scsi_eh.h> 84#include <scsi/scsi_cmnd.h> 85#include "ipr.h" 86 87/* 88 * Global Data 89 */ 90static LIST_HEAD(ipr_ioa_head); 91static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 92static unsigned int ipr_max_speed = 1; 93static int ipr_testmode = 0; 94static unsigned int ipr_fastfail = 0; 95static unsigned int ipr_transop_timeout = 0; 96static unsigned int ipr_debug = 0; 97static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; 98static unsigned int ipr_dual_ioa_raid = 1; 99static DEFINE_SPINLOCK(ipr_driver_lock); 100 101/* This table describes the differences between DMA controller chips */ 102static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { 103 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ 104 .mailbox = 0x0042C, 105 .cache_line_size = 0x20, 106 { 107 .set_interrupt_mask_reg = 0x0022C, 108 .clr_interrupt_mask_reg = 0x00230, 109 .clr_interrupt_mask_reg32 = 0x00230, 110 .sense_interrupt_mask_reg = 0x0022C, 111 .sense_interrupt_mask_reg32 = 0x0022C, 112 .clr_interrupt_reg = 0x00228, 113 .clr_interrupt_reg32 = 0x00228, 114 .sense_interrupt_reg = 0x00224, 115 .sense_interrupt_reg32 = 0x00224, 116 .ioarrin_reg = 0x00404, 117 .sense_uproc_interrupt_reg = 0x00214, 118 .sense_uproc_interrupt_reg32 = 0x00214, 119 .set_uproc_interrupt_reg = 0x00214, 120 .set_uproc_interrupt_reg32 = 0x00214, 121 .clr_uproc_interrupt_reg = 0x00218, 122 .clr_uproc_interrupt_reg32 = 0x00218 123 } 124 }, 125 { /* Snipe and Scamp */ 126 .mailbox = 0x0052C, 127 .cache_line_size = 0x20, 128 { 129 .set_interrupt_mask_reg = 0x00288, 130 .clr_interrupt_mask_reg = 0x0028C, 131 .clr_interrupt_mask_reg32 = 0x0028C, 132 .sense_interrupt_mask_reg = 0x00288, 133 .sense_interrupt_mask_reg32 = 0x00288, 134 .clr_interrupt_reg = 0x00284, 135 .clr_interrupt_reg32 = 0x00284, 136 .sense_interrupt_reg = 0x00280, 137 .sense_interrupt_reg32 = 0x00280, 138 .ioarrin_reg = 0x00504, 139 .sense_uproc_interrupt_reg = 0x00290, 140 .sense_uproc_interrupt_reg32 = 0x00290, 141 .set_uproc_interrupt_reg = 0x00290, 142 .set_uproc_interrupt_reg32 = 0x00290, 143 .clr_uproc_interrupt_reg = 0x00294, 144 .clr_uproc_interrupt_reg32 = 0x00294 145 } 146 }, 147 { /* CRoC */ 148 .mailbox = 0x00040, 149 .cache_line_size = 0x20, 150 { 151 .set_interrupt_mask_reg = 0x00010, 152 .clr_interrupt_mask_reg = 0x00018, 153 .clr_interrupt_mask_reg32 = 0x0001C, 154 .sense_interrupt_mask_reg = 0x00010, 155 .sense_interrupt_mask_reg32 = 0x00014, 156 .clr_interrupt_reg = 0x00008, 157 .clr_interrupt_reg32 = 0x0000C, 158 .sense_interrupt_reg = 0x00000, 159 .sense_interrupt_reg32 = 0x00004, 160 .ioarrin_reg = 0x00070, 161 .sense_uproc_interrupt_reg = 0x00020, 162 .sense_uproc_interrupt_reg32 = 0x00024, 163 .set_uproc_interrupt_reg = 0x00020, 164 .set_uproc_interrupt_reg32 = 0x00024, 165 .clr_uproc_interrupt_reg = 0x00028, 166 .clr_uproc_interrupt_reg32 = 0x0002C, 167 .init_feedback_reg = 0x0005C, 168 .dump_addr_reg = 0x00064, 169 .dump_data_reg = 0x00068 170 } 171 }, 172}; 173 174static const struct ipr_chip_t ipr_chip[] = { 175 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 176 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 177 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, &ipr_chip_cfg[0] }, 180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] }, 181 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] } 182}; 183 184static int ipr_max_bus_speeds [] = { 185 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 186}; 187 188MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 189MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 190module_param_named(max_speed, ipr_max_speed, uint, 0); 191MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 192module_param_named(log_level, ipr_log_level, uint, 0); 193MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 194module_param_named(testmode, ipr_testmode, int, 0); 195MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 196module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); 197MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 198module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 199MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 200module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); 201MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 202module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 203MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 204module_param_named(max_devs, ipr_max_devs, int, 0); 205MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " 206 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); 207MODULE_LICENSE("GPL"); 208MODULE_VERSION(IPR_DRIVER_VERSION); 209 210/* A constant array of IOASCs/URCs/Error Messages */ 211static const 212struct ipr_error_table_t ipr_error_table[] = { 213 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 214 "8155: An unknown error was received"}, 215 {0x00330000, 0, 0, 216 "Soft underlength error"}, 217 {0x005A0000, 0, 0, 218 "Command to be cancelled not found"}, 219 {0x00808000, 0, 0, 220 "Qualified success"}, 221 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 222 "FFFE: Soft device bus error recovered by the IOA"}, 223 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 224 "4101: Soft device bus fabric error"}, 225 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, 226 "FFFC: Logical block guard error recovered by the device"}, 227 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, 228 "FFFC: Logical block reference tag error recovered by the device"}, 229 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, 230 "4171: Recovered scatter list tag / sequence number error"}, 231 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, 232 "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, 233 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, 234 "4171: Recovered logical block sequence number error on IOA to Host transfer"}, 235 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, 236 "FFFD: Recovered logical block reference tag error detected by the IOA"}, 237 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, 238 "FFFD: Logical block guard error recovered by the IOA"}, 239 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 240 "FFF9: Device sector reassign successful"}, 241 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 242 "FFF7: Media error recovered by device rewrite procedures"}, 243 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 244 "7001: IOA sector reassignment successful"}, 245 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 246 "FFF9: Soft media error. Sector reassignment recommended"}, 247 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 248 "FFF7: Media error recovered by IOA rewrite procedures"}, 249 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 250 "FF3D: Soft PCI bus error recovered by the IOA"}, 251 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 252 "FFF6: Device hardware error recovered by the IOA"}, 253 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 254 "FFF6: Device hardware error recovered by the device"}, 255 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 256 "FF3D: Soft IOA error recovered by the IOA"}, 257 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 258 "FFFA: Undefined device response recovered by the IOA"}, 259 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 260 "FFF6: Device bus error, message or command phase"}, 261 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 262 "FFFE: Task Management Function failed"}, 263 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 264 "FFF6: Failure prediction threshold exceeded"}, 265 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 266 "8009: Impending cache battery pack failure"}, 267 {0x02040400, 0, 0, 268 "34FF: Disk device format in progress"}, 269 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 270 "9070: IOA requested reset"}, 271 {0x023F0000, 0, 0, 272 "Synchronization required"}, 273 {0x024E0000, 0, 0, 274 "No ready, IOA shutdown"}, 275 {0x025A0000, 0, 0, 276 "Not ready, IOA has been shutdown"}, 277 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 278 "3020: Storage subsystem configuration error"}, 279 {0x03110B00, 0, 0, 280 "FFF5: Medium error, data unreadable, recommend reassign"}, 281 {0x03110C00, 0, 0, 282 "7000: Medium error, data unreadable, do not reassign"}, 283 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 284 "FFF3: Disk media format bad"}, 285 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 286 "3002: Addressed device failed to respond to selection"}, 287 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 288 "3100: Device bus error"}, 289 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 290 "3109: IOA timed out a device command"}, 291 {0x04088000, 0, 0, 292 "3120: SCSI bus is not operational"}, 293 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 294 "4100: Hard device bus fabric error"}, 295 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, 296 "310C: Logical block guard error detected by the device"}, 297 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, 298 "310C: Logical block reference tag error detected by the device"}, 299 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, 300 "4170: Scatter list tag / sequence number error"}, 301 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, 302 "8150: Logical block CRC error on IOA to Host transfer"}, 303 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, 304 "4170: Logical block sequence number error on IOA to Host transfer"}, 305 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, 306 "310D: Logical block reference tag error detected by the IOA"}, 307 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, 308 "310D: Logical block guard error detected by the IOA"}, 309 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 310 "9000: IOA reserved area data check"}, 311 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 312 "9001: IOA reserved area invalid data pattern"}, 313 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 314 "9002: IOA reserved area LRC error"}, 315 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, 316 "Hardware Error, IOA metadata access error"}, 317 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 318 "102E: Out of alternate sectors for disk storage"}, 319 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 320 "FFF4: Data transfer underlength error"}, 321 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 322 "FFF4: Data transfer overlength error"}, 323 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 324 "3400: Logical unit failure"}, 325 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 326 "FFF4: Device microcode is corrupt"}, 327 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 328 "8150: PCI bus error"}, 329 {0x04430000, 1, 0, 330 "Unsupported device bus message received"}, 331 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 332 "FFF4: Disk device problem"}, 333 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 334 "8150: Permanent IOA failure"}, 335 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 336 "3010: Disk device returned wrong response to IOA"}, 337 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 338 "8151: IOA microcode error"}, 339 {0x04448500, 0, 0, 340 "Device bus status error"}, 341 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 342 "8157: IOA error requiring IOA reset to recover"}, 343 {0x04448700, 0, 0, 344 "ATA device status error"}, 345 {0x04490000, 0, 0, 346 "Message reject received from the device"}, 347 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 348 "8008: A permanent cache battery pack failure occurred"}, 349 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 350 "9090: Disk unit has been modified after the last known status"}, 351 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 352 "9081: IOA detected device error"}, 353 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 354 "9082: IOA detected device error"}, 355 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 356 "3110: Device bus error, message or command phase"}, 357 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 358 "3110: SAS Command / Task Management Function failed"}, 359 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 360 "9091: Incorrect hardware configuration change has been detected"}, 361 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 362 "9073: Invalid multi-adapter configuration"}, 363 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 364 "4010: Incorrect connection between cascaded expanders"}, 365 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 366 "4020: Connections exceed IOA design limits"}, 367 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 368 "4030: Incorrect multipath connection"}, 369 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 370 "4110: Unsupported enclosure function"}, 371 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 372 "FFF4: Command to logical unit failed"}, 373 {0x05240000, 1, 0, 374 "Illegal request, invalid request type or request packet"}, 375 {0x05250000, 0, 0, 376 "Illegal request, invalid resource handle"}, 377 {0x05258000, 0, 0, 378 "Illegal request, commands not allowed to this device"}, 379 {0x05258100, 0, 0, 380 "Illegal request, command not allowed to a secondary adapter"}, 381 {0x05258200, 0, 0, 382 "Illegal request, command not allowed to a non-optimized resource"}, 383 {0x05260000, 0, 0, 384 "Illegal request, invalid field in parameter list"}, 385 {0x05260100, 0, 0, 386 "Illegal request, parameter not supported"}, 387 {0x05260200, 0, 0, 388 "Illegal request, parameter value invalid"}, 389 {0x052C0000, 0, 0, 390 "Illegal request, command sequence error"}, 391 {0x052C8000, 1, 0, 392 "Illegal request, dual adapter support not enabled"}, 393 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 394 "9031: Array protection temporarily suspended, protection resuming"}, 395 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 396 "9040: Array protection temporarily suspended, protection resuming"}, 397 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 398 "3140: Device bus not ready to ready transition"}, 399 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 400 "FFFB: SCSI bus was reset"}, 401 {0x06290500, 0, 0, 402 "FFFE: SCSI bus transition to single ended"}, 403 {0x06290600, 0, 0, 404 "FFFE: SCSI bus transition to LVD"}, 405 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 406 "FFFB: SCSI bus was reset by another initiator"}, 407 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 408 "3029: A device replacement has occurred"}, 409 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 410 "9051: IOA cache data exists for a missing or failed device"}, 411 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 412 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 413 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 414 "9025: Disk unit is not supported at its physical location"}, 415 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 416 "3020: IOA detected a SCSI bus configuration error"}, 417 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 418 "3150: SCSI bus configuration error"}, 419 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 420 "9074: Asymmetric advanced function disk configuration"}, 421 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 422 "4040: Incomplete multipath connection between IOA and enclosure"}, 423 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 424 "4041: Incomplete multipath connection between enclosure and device"}, 425 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 426 "9075: Incomplete multipath connection between IOA and remote IOA"}, 427 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 428 "9076: Configuration error, missing remote IOA"}, 429 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 430 "4050: Enclosure does not support a required multipath function"}, 431 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, 432 "4070: Logically bad block written on device"}, 433 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 434 "9041: Array protection temporarily suspended"}, 435 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 436 "9042: Corrupt array parity detected on specified device"}, 437 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 438 "9030: Array no longer protected due to missing or failed disk unit"}, 439 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 440 "9071: Link operational transition"}, 441 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 442 "9072: Link not operational transition"}, 443 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 444 "9032: Array exposed but still protected"}, 445 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 446 "70DD: Device forced failed by disrupt device command"}, 447 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 448 "4061: Multipath redundancy level got better"}, 449 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 450 "4060: Multipath redundancy level got worse"}, 451 {0x07270000, 0, 0, 452 "Failure due to other device"}, 453 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 454 "9008: IOA does not support functions expected by devices"}, 455 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 456 "9010: Cache data associated with attached devices cannot be found"}, 457 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 458 "9011: Cache data belongs to devices other than those attached"}, 459 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 460 "9020: Array missing 2 or more devices with only 1 device present"}, 461 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 462 "9021: Array missing 2 or more devices with 2 or more devices present"}, 463 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 464 "9022: Exposed array is missing a required device"}, 465 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 466 "9023: Array member(s) not at required physical locations"}, 467 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 468 "9024: Array not functional due to present hardware configuration"}, 469 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 470 "9026: Array not functional due to present hardware configuration"}, 471 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 472 "9027: Array is missing a device and parity is out of sync"}, 473 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 474 "9028: Maximum number of arrays already exist"}, 475 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 476 "9050: Required cache data cannot be located for a disk unit"}, 477 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 478 "9052: Cache data exists for a device that has been modified"}, 479 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 480 "9054: IOA resources not available due to previous problems"}, 481 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 482 "9092: Disk unit requires initialization before use"}, 483 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 484 "9029: Incorrect hardware configuration change has been detected"}, 485 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 486 "9060: One or more disk pairs are missing from an array"}, 487 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 488 "9061: One or more disks are missing from an array"}, 489 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 490 "9062: One or more disks are missing from an array"}, 491 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 492 "9063: Maximum number of functional arrays has been exceeded"}, 493 {0x0B260000, 0, 0, 494 "Aborted command, invalid descriptor"}, 495 {0x0B5A0000, 0, 0, 496 "Command terminated by host"} 497}; 498 499static const struct ipr_ses_table_entry ipr_ses_table[] = { 500 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 501 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 502 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 503 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 504 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 505 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 506 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 507 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 508 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 509 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 510 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 511 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 512 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 513}; 514 515/* 516 * Function Prototypes 517 */ 518static int ipr_reset_alert(struct ipr_cmnd *); 519static void ipr_process_ccn(struct ipr_cmnd *); 520static void ipr_process_error(struct ipr_cmnd *); 521static void ipr_reset_ioa_job(struct ipr_cmnd *); 522static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 523 enum ipr_shutdown_type); 524 525#ifdef CONFIG_SCSI_IPR_TRACE 526/** 527 * ipr_trc_hook - Add a trace entry to the driver trace 528 * @ipr_cmd: ipr command struct 529 * @type: trace type 530 * @add_data: additional data 531 * 532 * Return value: 533 * none 534 **/ 535static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 536 u8 type, u32 add_data) 537{ 538 struct ipr_trace_entry *trace_entry; 539 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 540 541 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 542 trace_entry->time = jiffies; 543 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 544 trace_entry->type = type; 545 if (ipr_cmd->ioa_cfg->sis64) 546 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; 547 else 548 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; 549 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 550 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 551 trace_entry->u.add_data = add_data; 552} 553#else 554#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 555#endif 556 557/** 558 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 559 * @ipr_cmd: ipr command struct 560 * 561 * Return value: 562 * none 563 **/ 564static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 565{ 566 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 567 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 568 dma_addr_t dma_addr = ipr_cmd->dma_addr; 569 570 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 571 ioarcb->data_transfer_length = 0; 572 ioarcb->read_data_transfer_length = 0; 573 ioarcb->ioadl_len = 0; 574 ioarcb->read_ioadl_len = 0; 575 576 if (ipr_cmd->ioa_cfg->sis64) 577 ioarcb->u.sis64_addr_data.data_ioadl_addr = 578 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 579 else { 580 ioarcb->write_ioadl_addr = 581 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 582 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 583 } 584 585 ioasa->ioasc = 0; 586 ioasa->residual_data_len = 0; 587 ioasa->u.gata.status = 0; 588 589 ipr_cmd->scsi_cmd = NULL; 590 ipr_cmd->qc = NULL; 591 ipr_cmd->sense_buffer[0] = 0; 592 ipr_cmd->dma_use_sg = 0; 593} 594 595/** 596 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 597 * @ipr_cmd: ipr command struct 598 * 599 * Return value: 600 * none 601 **/ 602static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 603{ 604 ipr_reinit_ipr_cmnd(ipr_cmd); 605 ipr_cmd->u.scratch = 0; 606 ipr_cmd->sibling = NULL; 607 init_timer(&ipr_cmd->timer); 608} 609 610/** 611 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 612 * @ioa_cfg: ioa config struct 613 * 614 * Return value: 615 * pointer to ipr command struct 616 **/ 617static 618struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 619{ 620 struct ipr_cmnd *ipr_cmd; 621 622 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 623 list_del(&ipr_cmd->queue); 624 ipr_init_ipr_cmnd(ipr_cmd); 625 626 return ipr_cmd; 627} 628 629/** 630 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 631 * @ioa_cfg: ioa config struct 632 * @clr_ints: interrupts to clear 633 * 634 * This function masks all interrupts on the adapter, then clears the 635 * interrupts specified in the mask 636 * 637 * Return value: 638 * none 639 **/ 640static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 641 u32 clr_ints) 642{ 643 volatile u32 int_reg; 644 645 /* Stop new interrupts */ 646 ioa_cfg->allow_interrupts = 0; 647 648 /* Set interrupt mask to stop all new interrupts */ 649 if (ioa_cfg->sis64) 650 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); 651 else 652 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 653 654 /* Clear any pending interrupts */ 655 if (ioa_cfg->sis64) 656 writel(~0, ioa_cfg->regs.clr_interrupt_reg); 657 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); 658 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 659} 660 661/** 662 * ipr_save_pcix_cmd_reg - Save PCI-X command register 663 * @ioa_cfg: ioa config struct 664 * 665 * Return value: 666 * 0 on success / -EIO on failure 667 **/ 668static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 669{ 670 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 671 672 if (pcix_cmd_reg == 0) 673 return 0; 674 675 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 676 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 677 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 678 return -EIO; 679 } 680 681 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 682 return 0; 683} 684 685/** 686 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 687 * @ioa_cfg: ioa config struct 688 * 689 * Return value: 690 * 0 on success / -EIO on failure 691 **/ 692static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 693{ 694 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 695 696 if (pcix_cmd_reg) { 697 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 698 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 699 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 700 return -EIO; 701 } 702 } 703 704 return 0; 705} 706 707/** 708 * ipr_sata_eh_done - done function for aborted SATA commands 709 * @ipr_cmd: ipr command struct 710 * 711 * This function is invoked for ops generated to SATA 712 * devices which are being aborted. 713 * 714 * Return value: 715 * none 716 **/ 717static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 718{ 719 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 720 struct ata_queued_cmd *qc = ipr_cmd->qc; 721 struct ipr_sata_port *sata_port = qc->ap->private_data; 722 723 qc->err_mask |= AC_ERR_OTHER; 724 sata_port->ioasa.status |= ATA_BUSY; 725 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 726 ata_qc_complete(qc); 727} 728 729/** 730 * ipr_scsi_eh_done - mid-layer done function for aborted ops 731 * @ipr_cmd: ipr command struct 732 * 733 * This function is invoked by the interrupt handler for 734 * ops generated by the SCSI mid-layer which are being aborted. 735 * 736 * Return value: 737 * none 738 **/ 739static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 740{ 741 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 742 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 743 744 scsi_cmd->result |= (DID_ERROR << 16); 745 746 scsi_dma_unmap(ipr_cmd->scsi_cmd); 747 scsi_cmd->scsi_done(scsi_cmd); 748 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 749} 750 751/** 752 * ipr_fail_all_ops - Fails all outstanding ops. 753 * @ioa_cfg: ioa config struct 754 * 755 * This function fails all outstanding ops. 756 * 757 * Return value: 758 * none 759 **/ 760static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 761{ 762 struct ipr_cmnd *ipr_cmd, *temp; 763 764 ENTER; 765 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 766 list_del(&ipr_cmd->queue); 767 768 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 769 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); 770 771 if (ipr_cmd->scsi_cmd) 772 ipr_cmd->done = ipr_scsi_eh_done; 773 else if (ipr_cmd->qc) 774 ipr_cmd->done = ipr_sata_eh_done; 775 776 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 777 del_timer(&ipr_cmd->timer); 778 ipr_cmd->done(ipr_cmd); 779 } 780 781 LEAVE; 782} 783 784/** 785 * ipr_send_command - Send driver initiated requests. 786 * @ipr_cmd: ipr command struct 787 * 788 * This function sends a command to the adapter using the correct write call. 789 * In the case of sis64, calculate the ioarcb size required. Then or in the 790 * appropriate bits. 791 * 792 * Return value: 793 * none 794 **/ 795static void ipr_send_command(struct ipr_cmnd *ipr_cmd) 796{ 797 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 798 dma_addr_t send_dma_addr = ipr_cmd->dma_addr; 799 800 if (ioa_cfg->sis64) { 801 /* The default size is 256 bytes */ 802 send_dma_addr |= 0x1; 803 804 /* If the number of ioadls * size of ioadl > 128 bytes, 805 then use a 512 byte ioarcb */ 806 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) 807 send_dma_addr |= 0x4; 808 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 809 } else 810 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 811} 812 813/** 814 * ipr_do_req - Send driver initiated requests. 815 * @ipr_cmd: ipr command struct 816 * @done: done function 817 * @timeout_func: timeout function 818 * @timeout: timeout value 819 * 820 * This function sends the specified command to the adapter with the 821 * timeout given. The done function is invoked on command completion. 822 * 823 * Return value: 824 * none 825 **/ 826static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 827 void (*done) (struct ipr_cmnd *), 828 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 829{ 830 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 831 832 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 833 834 ipr_cmd->done = done; 835 836 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 837 ipr_cmd->timer.expires = jiffies + timeout; 838 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 839 840 add_timer(&ipr_cmd->timer); 841 842 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 843 844 mb(); 845 846 ipr_send_command(ipr_cmd); 847} 848 849/** 850 * ipr_internal_cmd_done - Op done function for an internally generated op. 851 * @ipr_cmd: ipr command struct 852 * 853 * This function is the op done function for an internally generated, 854 * blocking op. It simply wakes the sleeping thread. 855 * 856 * Return value: 857 * none 858 **/ 859static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 860{ 861 if (ipr_cmd->sibling) 862 ipr_cmd->sibling = NULL; 863 else 864 complete(&ipr_cmd->completion); 865} 866 867/** 868 * ipr_init_ioadl - initialize the ioadl for the correct SIS type 869 * @ipr_cmd: ipr command struct 870 * @dma_addr: dma address 871 * @len: transfer length 872 * @flags: ioadl flag value 873 * 874 * This function initializes an ioadl in the case where there is only a single 875 * descriptor. 876 * 877 * Return value: 878 * nothing 879 **/ 880static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, 881 u32 len, int flags) 882{ 883 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 884 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 885 886 ipr_cmd->dma_use_sg = 1; 887 888 if (ipr_cmd->ioa_cfg->sis64) { 889 ioadl64->flags = cpu_to_be32(flags); 890 ioadl64->data_len = cpu_to_be32(len); 891 ioadl64->address = cpu_to_be64(dma_addr); 892 893 ipr_cmd->ioarcb.ioadl_len = 894 cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); 895 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 896 } else { 897 ioadl->flags_and_data_len = cpu_to_be32(flags | len); 898 ioadl->address = cpu_to_be32(dma_addr); 899 900 if (flags == IPR_IOADL_FLAGS_READ_LAST) { 901 ipr_cmd->ioarcb.read_ioadl_len = 902 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 903 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); 904 } else { 905 ipr_cmd->ioarcb.ioadl_len = 906 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 907 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 908 } 909 } 910} 911 912/** 913 * ipr_send_blocking_cmd - Send command and sleep on its completion. 914 * @ipr_cmd: ipr command struct 915 * @timeout_func: function to invoke if command times out 916 * @timeout: timeout 917 * 918 * Return value: 919 * none 920 **/ 921static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 922 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 923 u32 timeout) 924{ 925 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 926 927 init_completion(&ipr_cmd->completion); 928 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 929 930 spin_unlock_irq(ioa_cfg->host->host_lock); 931 wait_for_completion(&ipr_cmd->completion); 932 spin_lock_irq(ioa_cfg->host->host_lock); 933} 934 935/** 936 * ipr_send_hcam - Send an HCAM to the adapter. 937 * @ioa_cfg: ioa config struct 938 * @type: HCAM type 939 * @hostrcb: hostrcb struct 940 * 941 * This function will send a Host Controlled Async command to the adapter. 942 * If HCAMs are currently not allowed to be issued to the adapter, it will 943 * place the hostrcb on the free queue. 944 * 945 * Return value: 946 * none 947 **/ 948static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 949 struct ipr_hostrcb *hostrcb) 950{ 951 struct ipr_cmnd *ipr_cmd; 952 struct ipr_ioarcb *ioarcb; 953 954 if (ioa_cfg->allow_cmds) { 955 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 956 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 957 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 958 959 ipr_cmd->u.hostrcb = hostrcb; 960 ioarcb = &ipr_cmd->ioarcb; 961 962 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 963 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 964 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 965 ioarcb->cmd_pkt.cdb[1] = type; 966 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 967 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 968 969 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, 970 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); 971 972 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 973 ipr_cmd->done = ipr_process_ccn; 974 else 975 ipr_cmd->done = ipr_process_error; 976 977 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 978 979 mb(); 980 981 ipr_send_command(ipr_cmd); 982 } else { 983 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 984 } 985} 986 987/** 988 * ipr_update_ata_class - Update the ata class in the resource entry 989 * @res: resource entry struct 990 * @proto: cfgte device bus protocol value 991 * 992 * Return value: 993 * none 994 **/ 995static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) 996{ 997 switch(proto) { 998 case IPR_PROTO_SATA: 999 case IPR_PROTO_SAS_STP: 1000 res->ata_class = ATA_DEV_ATA; 1001 break; 1002 case IPR_PROTO_SATA_ATAPI: 1003 case IPR_PROTO_SAS_STP_ATAPI: 1004 res->ata_class = ATA_DEV_ATAPI; 1005 break; 1006 default: 1007 res->ata_class = ATA_DEV_UNKNOWN; 1008 break; 1009 }; 1010} 1011 1012/** 1013 * ipr_init_res_entry - Initialize a resource entry struct. 1014 * @res: resource entry struct 1015 * @cfgtew: config table entry wrapper struct 1016 * 1017 * Return value: 1018 * none 1019 **/ 1020static void ipr_init_res_entry(struct ipr_resource_entry *res, 1021 struct ipr_config_table_entry_wrapper *cfgtew) 1022{ 1023 int found = 0; 1024 unsigned int proto; 1025 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1026 struct ipr_resource_entry *gscsi_res = NULL; 1027 1028 res->needs_sync_complete = 0; 1029 res->in_erp = 0; 1030 res->add_to_ml = 0; 1031 res->del_from_ml = 0; 1032 res->resetting_device = 0; 1033 res->sdev = NULL; 1034 res->sata_port = NULL; 1035 1036 if (ioa_cfg->sis64) { 1037 proto = cfgtew->u.cfgte64->proto; 1038 res->res_flags = cfgtew->u.cfgte64->res_flags; 1039 res->qmodel = IPR_QUEUEING_MODEL64(res); 1040 res->type = cfgtew->u.cfgte64->res_type & 0x0f; 1041 1042 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1043 sizeof(res->res_path)); 1044 1045 res->bus = 0; 1046 res->lun = scsilun_to_int(&res->dev_lun); 1047 1048 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1049 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { 1050 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { 1051 found = 1; 1052 res->target = gscsi_res->target; 1053 break; 1054 } 1055 } 1056 if (!found) { 1057 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1058 ioa_cfg->max_devs_supported); 1059 set_bit(res->target, ioa_cfg->target_ids); 1060 } 1061 1062 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1063 sizeof(res->dev_lun.scsi_lun)); 1064 } else if (res->type == IPR_RES_TYPE_IOAFP) { 1065 res->bus = IPR_IOAFP_VIRTUAL_BUS; 1066 res->target = 0; 1067 } else if (res->type == IPR_RES_TYPE_ARRAY) { 1068 res->bus = IPR_ARRAY_VIRTUAL_BUS; 1069 res->target = find_first_zero_bit(ioa_cfg->array_ids, 1070 ioa_cfg->max_devs_supported); 1071 set_bit(res->target, ioa_cfg->array_ids); 1072 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { 1073 res->bus = IPR_VSET_VIRTUAL_BUS; 1074 res->target = find_first_zero_bit(ioa_cfg->vset_ids, 1075 ioa_cfg->max_devs_supported); 1076 set_bit(res->target, ioa_cfg->vset_ids); 1077 } else { 1078 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1079 ioa_cfg->max_devs_supported); 1080 set_bit(res->target, ioa_cfg->target_ids); 1081 } 1082 } else { 1083 proto = cfgtew->u.cfgte->proto; 1084 res->qmodel = IPR_QUEUEING_MODEL(res); 1085 res->flags = cfgtew->u.cfgte->flags; 1086 if (res->flags & IPR_IS_IOA_RESOURCE) 1087 res->type = IPR_RES_TYPE_IOAFP; 1088 else 1089 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1090 1091 res->bus = cfgtew->u.cfgte->res_addr.bus; 1092 res->target = cfgtew->u.cfgte->res_addr.target; 1093 res->lun = cfgtew->u.cfgte->res_addr.lun; 1094 } 1095 1096 ipr_update_ata_class(res, proto); 1097} 1098 1099/** 1100 * ipr_is_same_device - Determine if two devices are the same. 1101 * @res: resource entry struct 1102 * @cfgtew: config table entry wrapper struct 1103 * 1104 * Return value: 1105 * 1 if the devices are the same / 0 otherwise 1106 **/ 1107static int ipr_is_same_device(struct ipr_resource_entry *res, 1108 struct ipr_config_table_entry_wrapper *cfgtew) 1109{ 1110 if (res->ioa_cfg->sis64) { 1111 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, 1112 sizeof(cfgtew->u.cfgte64->dev_id)) && 1113 !memcmp(&res->lun, &cfgtew->u.cfgte64->lun, 1114 sizeof(cfgtew->u.cfgte64->lun))) { 1115 return 1; 1116 } 1117 } else { 1118 if (res->bus == cfgtew->u.cfgte->res_addr.bus && 1119 res->target == cfgtew->u.cfgte->res_addr.target && 1120 res->lun == cfgtew->u.cfgte->res_addr.lun) 1121 return 1; 1122 } 1123 1124 return 0; 1125} 1126 1127/** 1128 * ipr_format_resource_path - Format the resource path for printing. 1129 * @res_path: resource path 1130 * @buf: buffer 1131 * 1132 * Return value: 1133 * pointer to buffer 1134 **/ 1135static char *ipr_format_resource_path(u8 *res_path, char *buffer) 1136{ 1137 int i; 1138 1139 sprintf(buffer, "%02X", res_path[0]); 1140 for (i=1; res_path[i] != 0xff; i++) 1141 sprintf(buffer, "%s-%02X", buffer, res_path[i]); 1142 1143 return buffer; 1144} 1145 1146/** 1147 * ipr_update_res_entry - Update the resource entry. 1148 * @res: resource entry struct 1149 * @cfgtew: config table entry wrapper struct 1150 * 1151 * Return value: 1152 * none 1153 **/ 1154static void ipr_update_res_entry(struct ipr_resource_entry *res, 1155 struct ipr_config_table_entry_wrapper *cfgtew) 1156{ 1157 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1158 unsigned int proto; 1159 int new_path = 0; 1160 1161 if (res->ioa_cfg->sis64) { 1162 res->flags = cfgtew->u.cfgte64->flags; 1163 res->res_flags = cfgtew->u.cfgte64->res_flags; 1164 res->type = cfgtew->u.cfgte64->res_type & 0x0f; 1165 1166 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, 1167 sizeof(struct ipr_std_inq_data)); 1168 1169 res->qmodel = IPR_QUEUEING_MODEL64(res); 1170 proto = cfgtew->u.cfgte64->proto; 1171 res->res_handle = cfgtew->u.cfgte64->res_handle; 1172 res->dev_id = cfgtew->u.cfgte64->dev_id; 1173 1174 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1175 sizeof(res->dev_lun.scsi_lun)); 1176 1177 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, 1178 sizeof(res->res_path))) { 1179 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1180 sizeof(res->res_path)); 1181 new_path = 1; 1182 } 1183 1184 if (res->sdev && new_path) 1185 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", 1186 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 1187 } else { 1188 res->flags = cfgtew->u.cfgte->flags; 1189 if (res->flags & IPR_IS_IOA_RESOURCE) 1190 res->type = IPR_RES_TYPE_IOAFP; 1191 else 1192 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1193 1194 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, 1195 sizeof(struct ipr_std_inq_data)); 1196 1197 res->qmodel = IPR_QUEUEING_MODEL(res); 1198 proto = cfgtew->u.cfgte->proto; 1199 res->res_handle = cfgtew->u.cfgte->res_handle; 1200 } 1201 1202 ipr_update_ata_class(res, proto); 1203} 1204 1205/** 1206 * ipr_clear_res_target - Clear the bit in the bit map representing the target 1207 * for the resource. 1208 * @res: resource entry struct 1209 * @cfgtew: config table entry wrapper struct 1210 * 1211 * Return value: 1212 * none 1213 **/ 1214static void ipr_clear_res_target(struct ipr_resource_entry *res) 1215{ 1216 struct ipr_resource_entry *gscsi_res = NULL; 1217 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1218 1219 if (!ioa_cfg->sis64) 1220 return; 1221 1222 if (res->bus == IPR_ARRAY_VIRTUAL_BUS) 1223 clear_bit(res->target, ioa_cfg->array_ids); 1224 else if (res->bus == IPR_VSET_VIRTUAL_BUS) 1225 clear_bit(res->target, ioa_cfg->vset_ids); 1226 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1227 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) 1228 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) 1229 return; 1230 clear_bit(res->target, ioa_cfg->target_ids); 1231 1232 } else if (res->bus == 0) 1233 clear_bit(res->target, ioa_cfg->target_ids); 1234} 1235 1236/** 1237 * ipr_handle_config_change - Handle a config change from the adapter 1238 * @ioa_cfg: ioa config struct 1239 * @hostrcb: hostrcb 1240 * 1241 * Return value: 1242 * none 1243 **/ 1244static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 1245 struct ipr_hostrcb *hostrcb) 1246{ 1247 struct ipr_resource_entry *res = NULL; 1248 struct ipr_config_table_entry_wrapper cfgtew; 1249 __be32 cc_res_handle; 1250 1251 u32 is_ndn = 1; 1252 1253 if (ioa_cfg->sis64) { 1254 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; 1255 cc_res_handle = cfgtew.u.cfgte64->res_handle; 1256 } else { 1257 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; 1258 cc_res_handle = cfgtew.u.cfgte->res_handle; 1259 } 1260 1261 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1262 if (res->res_handle == cc_res_handle) { 1263 is_ndn = 0; 1264 break; 1265 } 1266 } 1267 1268 if (is_ndn) { 1269 if (list_empty(&ioa_cfg->free_res_q)) { 1270 ipr_send_hcam(ioa_cfg, 1271 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 1272 hostrcb); 1273 return; 1274 } 1275 1276 res = list_entry(ioa_cfg->free_res_q.next, 1277 struct ipr_resource_entry, queue); 1278 1279 list_del(&res->queue); 1280 ipr_init_res_entry(res, &cfgtew); 1281 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 1282 } 1283 1284 ipr_update_res_entry(res, &cfgtew); 1285 1286 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 1287 if (res->sdev) { 1288 res->del_from_ml = 1; 1289 res->res_handle = IPR_INVALID_RES_HANDLE; 1290 if (ioa_cfg->allow_ml_add_del) 1291 schedule_work(&ioa_cfg->work_q); 1292 } else { 1293 ipr_clear_res_target(res); 1294 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 1295 } 1296 } else if (!res->sdev) { 1297 res->add_to_ml = 1; 1298 if (ioa_cfg->allow_ml_add_del) 1299 schedule_work(&ioa_cfg->work_q); 1300 } 1301 1302 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1303} 1304 1305/** 1306 * ipr_process_ccn - Op done function for a CCN. 1307 * @ipr_cmd: ipr command struct 1308 * 1309 * This function is the op done function for a configuration 1310 * change notification host controlled async from the adapter. 1311 * 1312 * Return value: 1313 * none 1314 **/ 1315static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 1316{ 1317 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1318 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1319 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 1320 1321 list_del(&hostrcb->queue); 1322 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1323 1324 if (ioasc) { 1325 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 1326 dev_err(&ioa_cfg->pdev->dev, 1327 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1328 1329 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1330 } else { 1331 ipr_handle_config_change(ioa_cfg, hostrcb); 1332 } 1333} 1334 1335/** 1336 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 1337 * @i: index into buffer 1338 * @buf: string to modify 1339 * 1340 * This function will strip all trailing whitespace, pad the end 1341 * of the string with a single space, and NULL terminate the string. 1342 * 1343 * Return value: 1344 * new length of string 1345 **/ 1346static int strip_and_pad_whitespace(int i, char *buf) 1347{ 1348 while (i && buf[i] == ' ') 1349 i--; 1350 buf[i+1] = ' '; 1351 buf[i+2] = '\0'; 1352 return i + 2; 1353} 1354 1355/** 1356 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 1357 * @prefix: string to print at start of printk 1358 * @hostrcb: hostrcb pointer 1359 * @vpd: vendor/product id/sn struct 1360 * 1361 * Return value: 1362 * none 1363 **/ 1364static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1365 struct ipr_vpd *vpd) 1366{ 1367 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 1368 int i = 0; 1369 1370 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1371 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 1372 1373 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 1374 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 1375 1376 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1377 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1378 1379 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1380} 1381 1382/** 1383 * ipr_log_vpd - Log the passed VPD to the error log. 1384 * @vpd: vendor/product id/sn struct 1385 * 1386 * Return value: 1387 * none 1388 **/ 1389static void ipr_log_vpd(struct ipr_vpd *vpd) 1390{ 1391 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1392 + IPR_SERIAL_NUM_LEN]; 1393 1394 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1395 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1396 IPR_PROD_ID_LEN); 1397 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1398 ipr_err("Vendor/Product ID: %s\n", buffer); 1399 1400 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1401 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1402 ipr_err(" Serial Number: %s\n", buffer); 1403} 1404 1405/** 1406 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1407 * @prefix: string to print at start of printk 1408 * @hostrcb: hostrcb pointer 1409 * @vpd: vendor/product id/sn/wwn struct 1410 * 1411 * Return value: 1412 * none 1413 **/ 1414static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1415 struct ipr_ext_vpd *vpd) 1416{ 1417 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1418 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1419 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1420} 1421 1422/** 1423 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1424 * @vpd: vendor/product id/sn/wwn struct 1425 * 1426 * Return value: 1427 * none 1428 **/ 1429static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1430{ 1431 ipr_log_vpd(&vpd->vpd); 1432 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1433 be32_to_cpu(vpd->wwid[1])); 1434} 1435 1436/** 1437 * ipr_log_enhanced_cache_error - Log a cache error. 1438 * @ioa_cfg: ioa config struct 1439 * @hostrcb: hostrcb struct 1440 * 1441 * Return value: 1442 * none 1443 **/ 1444static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1445 struct ipr_hostrcb *hostrcb) 1446{ 1447 struct ipr_hostrcb_type_12_error *error; 1448 1449 if (ioa_cfg->sis64) 1450 error = &hostrcb->hcam.u.error64.u.type_12_error; 1451 else 1452 error = &hostrcb->hcam.u.error.u.type_12_error; 1453 1454 ipr_err("-----Current Configuration-----\n"); 1455 ipr_err("Cache Directory Card Information:\n"); 1456 ipr_log_ext_vpd(&error->ioa_vpd); 1457 ipr_err("Adapter Card Information:\n"); 1458 ipr_log_ext_vpd(&error->cfc_vpd); 1459 1460 ipr_err("-----Expected Configuration-----\n"); 1461 ipr_err("Cache Directory Card Information:\n"); 1462 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1463 ipr_err("Adapter Card Information:\n"); 1464 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1465 1466 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1467 be32_to_cpu(error->ioa_data[0]), 1468 be32_to_cpu(error->ioa_data[1]), 1469 be32_to_cpu(error->ioa_data[2])); 1470} 1471 1472/** 1473 * ipr_log_cache_error - Log a cache error. 1474 * @ioa_cfg: ioa config struct 1475 * @hostrcb: hostrcb struct 1476 * 1477 * Return value: 1478 * none 1479 **/ 1480static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1481 struct ipr_hostrcb *hostrcb) 1482{ 1483 struct ipr_hostrcb_type_02_error *error = 1484 &hostrcb->hcam.u.error.u.type_02_error; 1485 1486 ipr_err("-----Current Configuration-----\n"); 1487 ipr_err("Cache Directory Card Information:\n"); 1488 ipr_log_vpd(&error->ioa_vpd); 1489 ipr_err("Adapter Card Information:\n"); 1490 ipr_log_vpd(&error->cfc_vpd); 1491 1492 ipr_err("-----Expected Configuration-----\n"); 1493 ipr_err("Cache Directory Card Information:\n"); 1494 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1495 ipr_err("Adapter Card Information:\n"); 1496 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1497 1498 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1499 be32_to_cpu(error->ioa_data[0]), 1500 be32_to_cpu(error->ioa_data[1]), 1501 be32_to_cpu(error->ioa_data[2])); 1502} 1503 1504/** 1505 * ipr_log_enhanced_config_error - Log a configuration error. 1506 * @ioa_cfg: ioa config struct 1507 * @hostrcb: hostrcb struct 1508 * 1509 * Return value: 1510 * none 1511 **/ 1512static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1513 struct ipr_hostrcb *hostrcb) 1514{ 1515 int errors_logged, i; 1516 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1517 struct ipr_hostrcb_type_13_error *error; 1518 1519 error = &hostrcb->hcam.u.error.u.type_13_error; 1520 errors_logged = be32_to_cpu(error->errors_logged); 1521 1522 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1523 be32_to_cpu(error->errors_detected), errors_logged); 1524 1525 dev_entry = error->dev; 1526 1527 for (i = 0; i < errors_logged; i++, dev_entry++) { 1528 ipr_err_separator; 1529 1530 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1531 ipr_log_ext_vpd(&dev_entry->vpd); 1532 1533 ipr_err("-----New Device Information-----\n"); 1534 ipr_log_ext_vpd(&dev_entry->new_vpd); 1535 1536 ipr_err("Cache Directory Card Information:\n"); 1537 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1538 1539 ipr_err("Adapter Card Information:\n"); 1540 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1541 } 1542} 1543 1544/** 1545 * ipr_log_sis64_config_error - Log a device error. 1546 * @ioa_cfg: ioa config struct 1547 * @hostrcb: hostrcb struct 1548 * 1549 * Return value: 1550 * none 1551 **/ 1552static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, 1553 struct ipr_hostrcb *hostrcb) 1554{ 1555 int errors_logged, i; 1556 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; 1557 struct ipr_hostrcb_type_23_error *error; 1558 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1559 1560 error = &hostrcb->hcam.u.error64.u.type_23_error; 1561 errors_logged = be32_to_cpu(error->errors_logged); 1562 1563 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1564 be32_to_cpu(error->errors_detected), errors_logged); 1565 1566 dev_entry = error->dev; 1567 1568 for (i = 0; i < errors_logged; i++, dev_entry++) { 1569 ipr_err_separator; 1570 1571 ipr_err("Device %d : %s", i + 1, 1572 ipr_format_resource_path(&dev_entry->res_path[0], &buffer[0])); 1573 ipr_log_ext_vpd(&dev_entry->vpd); 1574 1575 ipr_err("-----New Device Information-----\n"); 1576 ipr_log_ext_vpd(&dev_entry->new_vpd); 1577 1578 ipr_err("Cache Directory Card Information:\n"); 1579 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1580 1581 ipr_err("Adapter Card Information:\n"); 1582 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1583 } 1584} 1585 1586/** 1587 * ipr_log_config_error - Log a configuration error. 1588 * @ioa_cfg: ioa config struct 1589 * @hostrcb: hostrcb struct 1590 * 1591 * Return value: 1592 * none 1593 **/ 1594static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1595 struct ipr_hostrcb *hostrcb) 1596{ 1597 int errors_logged, i; 1598 struct ipr_hostrcb_device_data_entry *dev_entry; 1599 struct ipr_hostrcb_type_03_error *error; 1600 1601 error = &hostrcb->hcam.u.error.u.type_03_error; 1602 errors_logged = be32_to_cpu(error->errors_logged); 1603 1604 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1605 be32_to_cpu(error->errors_detected), errors_logged); 1606 1607 dev_entry = error->dev; 1608 1609 for (i = 0; i < errors_logged; i++, dev_entry++) { 1610 ipr_err_separator; 1611 1612 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1613 ipr_log_vpd(&dev_entry->vpd); 1614 1615 ipr_err("-----New Device Information-----\n"); 1616 ipr_log_vpd(&dev_entry->new_vpd); 1617 1618 ipr_err("Cache Directory Card Information:\n"); 1619 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1620 1621 ipr_err("Adapter Card Information:\n"); 1622 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1623 1624 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1625 be32_to_cpu(dev_entry->ioa_data[0]), 1626 be32_to_cpu(dev_entry->ioa_data[1]), 1627 be32_to_cpu(dev_entry->ioa_data[2]), 1628 be32_to_cpu(dev_entry->ioa_data[3]), 1629 be32_to_cpu(dev_entry->ioa_data[4])); 1630 } 1631} 1632 1633/** 1634 * ipr_log_enhanced_array_error - Log an array configuration error. 1635 * @ioa_cfg: ioa config struct 1636 * @hostrcb: hostrcb struct 1637 * 1638 * Return value: 1639 * none 1640 **/ 1641static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1642 struct ipr_hostrcb *hostrcb) 1643{ 1644 int i, num_entries; 1645 struct ipr_hostrcb_type_14_error *error; 1646 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1647 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1648 1649 error = &hostrcb->hcam.u.error.u.type_14_error; 1650 1651 ipr_err_separator; 1652 1653 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1654 error->protection_level, 1655 ioa_cfg->host->host_no, 1656 error->last_func_vset_res_addr.bus, 1657 error->last_func_vset_res_addr.target, 1658 error->last_func_vset_res_addr.lun); 1659 1660 ipr_err_separator; 1661 1662 array_entry = error->array_member; 1663 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1664 sizeof(error->array_member)); 1665 1666 for (i = 0; i < num_entries; i++, array_entry++) { 1667 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1668 continue; 1669 1670 if (be32_to_cpu(error->exposed_mode_adn) == i) 1671 ipr_err("Exposed Array Member %d:\n", i); 1672 else 1673 ipr_err("Array Member %d:\n", i); 1674 1675 ipr_log_ext_vpd(&array_entry->vpd); 1676 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1677 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1678 "Expected Location"); 1679 1680 ipr_err_separator; 1681 } 1682} 1683 1684/** 1685 * ipr_log_array_error - Log an array configuration error. 1686 * @ioa_cfg: ioa config struct 1687 * @hostrcb: hostrcb struct 1688 * 1689 * Return value: 1690 * none 1691 **/ 1692static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1693 struct ipr_hostrcb *hostrcb) 1694{ 1695 int i; 1696 struct ipr_hostrcb_type_04_error *error; 1697 struct ipr_hostrcb_array_data_entry *array_entry; 1698 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1699 1700 error = &hostrcb->hcam.u.error.u.type_04_error; 1701 1702 ipr_err_separator; 1703 1704 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1705 error->protection_level, 1706 ioa_cfg->host->host_no, 1707 error->last_func_vset_res_addr.bus, 1708 error->last_func_vset_res_addr.target, 1709 error->last_func_vset_res_addr.lun); 1710 1711 ipr_err_separator; 1712 1713 array_entry = error->array_member; 1714 1715 for (i = 0; i < 18; i++) { 1716 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1717 continue; 1718 1719 if (be32_to_cpu(error->exposed_mode_adn) == i) 1720 ipr_err("Exposed Array Member %d:\n", i); 1721 else 1722 ipr_err("Array Member %d:\n", i); 1723 1724 ipr_log_vpd(&array_entry->vpd); 1725 1726 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1727 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1728 "Expected Location"); 1729 1730 ipr_err_separator; 1731 1732 if (i == 9) 1733 array_entry = error->array_member2; 1734 else 1735 array_entry++; 1736 } 1737} 1738 1739/** 1740 * ipr_log_hex_data - Log additional hex IOA error data. 1741 * @ioa_cfg: ioa config struct 1742 * @data: IOA error data 1743 * @len: data length 1744 * 1745 * Return value: 1746 * none 1747 **/ 1748static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1749{ 1750 int i; 1751 1752 if (len == 0) 1753 return; 1754 1755 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1756 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1757 1758 for (i = 0; i < len / 4; i += 4) { 1759 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1760 be32_to_cpu(data[i]), 1761 be32_to_cpu(data[i+1]), 1762 be32_to_cpu(data[i+2]), 1763 be32_to_cpu(data[i+3])); 1764 } 1765} 1766 1767/** 1768 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1769 * @ioa_cfg: ioa config struct 1770 * @hostrcb: hostrcb struct 1771 * 1772 * Return value: 1773 * none 1774 **/ 1775static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1776 struct ipr_hostrcb *hostrcb) 1777{ 1778 struct ipr_hostrcb_type_17_error *error; 1779 1780 if (ioa_cfg->sis64) 1781 error = &hostrcb->hcam.u.error64.u.type_17_error; 1782 else 1783 error = &hostrcb->hcam.u.error.u.type_17_error; 1784 1785 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1786 strim(error->failure_reason); 1787 1788 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1789 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1790 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1791 ipr_log_hex_data(ioa_cfg, error->data, 1792 be32_to_cpu(hostrcb->hcam.length) - 1793 (offsetof(struct ipr_hostrcb_error, u) + 1794 offsetof(struct ipr_hostrcb_type_17_error, data))); 1795} 1796 1797/** 1798 * ipr_log_dual_ioa_error - Log a dual adapter error. 1799 * @ioa_cfg: ioa config struct 1800 * @hostrcb: hostrcb struct 1801 * 1802 * Return value: 1803 * none 1804 **/ 1805static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1806 struct ipr_hostrcb *hostrcb) 1807{ 1808 struct ipr_hostrcb_type_07_error *error; 1809 1810 error = &hostrcb->hcam.u.error.u.type_07_error; 1811 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1812 strim(error->failure_reason); 1813 1814 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1815 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1816 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1817 ipr_log_hex_data(ioa_cfg, error->data, 1818 be32_to_cpu(hostrcb->hcam.length) - 1819 (offsetof(struct ipr_hostrcb_error, u) + 1820 offsetof(struct ipr_hostrcb_type_07_error, data))); 1821} 1822 1823static const struct { 1824 u8 active; 1825 char *desc; 1826} path_active_desc[] = { 1827 { IPR_PATH_NO_INFO, "Path" }, 1828 { IPR_PATH_ACTIVE, "Active path" }, 1829 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1830}; 1831 1832static const struct { 1833 u8 state; 1834 char *desc; 1835} path_state_desc[] = { 1836 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1837 { IPR_PATH_HEALTHY, "is healthy" }, 1838 { IPR_PATH_DEGRADED, "is degraded" }, 1839 { IPR_PATH_FAILED, "is failed" } 1840}; 1841 1842/** 1843 * ipr_log_fabric_path - Log a fabric path error 1844 * @hostrcb: hostrcb struct 1845 * @fabric: fabric descriptor 1846 * 1847 * Return value: 1848 * none 1849 **/ 1850static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1851 struct ipr_hostrcb_fabric_desc *fabric) 1852{ 1853 int i, j; 1854 u8 path_state = fabric->path_state; 1855 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1856 u8 state = path_state & IPR_PATH_STATE_MASK; 1857 1858 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1859 if (path_active_desc[i].active != active) 1860 continue; 1861 1862 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1863 if (path_state_desc[j].state != state) 1864 continue; 1865 1866 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1867 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1868 path_active_desc[i].desc, path_state_desc[j].desc, 1869 fabric->ioa_port); 1870 } else if (fabric->cascaded_expander == 0xff) { 1871 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1872 path_active_desc[i].desc, path_state_desc[j].desc, 1873 fabric->ioa_port, fabric->phy); 1874 } else if (fabric->phy == 0xff) { 1875 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1876 path_active_desc[i].desc, path_state_desc[j].desc, 1877 fabric->ioa_port, fabric->cascaded_expander); 1878 } else { 1879 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1880 path_active_desc[i].desc, path_state_desc[j].desc, 1881 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1882 } 1883 return; 1884 } 1885 } 1886 1887 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1888 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1889} 1890 1891/** 1892 * ipr_log64_fabric_path - Log a fabric path error 1893 * @hostrcb: hostrcb struct 1894 * @fabric: fabric descriptor 1895 * 1896 * Return value: 1897 * none 1898 **/ 1899static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, 1900 struct ipr_hostrcb64_fabric_desc *fabric) 1901{ 1902 int i, j; 1903 u8 path_state = fabric->path_state; 1904 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1905 u8 state = path_state & IPR_PATH_STATE_MASK; 1906 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1907 1908 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1909 if (path_active_desc[i].active != active) 1910 continue; 1911 1912 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1913 if (path_state_desc[j].state != state) 1914 continue; 1915 1916 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", 1917 path_active_desc[i].desc, path_state_desc[j].desc, 1918 ipr_format_resource_path(&fabric->res_path[0], &buffer[0])); 1919 return; 1920 } 1921 } 1922 1923 ipr_err("Path state=%02X Resource Path=%s\n", path_state, 1924 ipr_format_resource_path(&fabric->res_path[0], &buffer[0])); 1925} 1926 1927static const struct { 1928 u8 type; 1929 char *desc; 1930} path_type_desc[] = { 1931 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1932 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1933 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1934 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1935}; 1936 1937static const struct { 1938 u8 status; 1939 char *desc; 1940} path_status_desc[] = { 1941 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1942 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1943 { IPR_PATH_CFG_FAILED, "Failed" }, 1944 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1945 { IPR_PATH_NOT_DETECTED, "Missing" }, 1946 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1947}; 1948 1949static const char *link_rate[] = { 1950 "unknown", 1951 "disabled", 1952 "phy reset problem", 1953 "spinup hold", 1954 "port selector", 1955 "unknown", 1956 "unknown", 1957 "unknown", 1958 "1.5Gbps", 1959 "3.0Gbps", 1960 "unknown", 1961 "unknown", 1962 "unknown", 1963 "unknown", 1964 "unknown", 1965 "unknown" 1966}; 1967 1968/** 1969 * ipr_log_path_elem - Log a fabric path element. 1970 * @hostrcb: hostrcb struct 1971 * @cfg: fabric path element struct 1972 * 1973 * Return value: 1974 * none 1975 **/ 1976static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1977 struct ipr_hostrcb_config_element *cfg) 1978{ 1979 int i, j; 1980 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1981 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1982 1983 if (type == IPR_PATH_CFG_NOT_EXIST) 1984 return; 1985 1986 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1987 if (path_type_desc[i].type != type) 1988 continue; 1989 1990 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 1991 if (path_status_desc[j].status != status) 1992 continue; 1993 1994 if (type == IPR_PATH_CFG_IOA_PORT) { 1995 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 1996 path_status_desc[j].desc, path_type_desc[i].desc, 1997 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 1998 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 1999 } else { 2000 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 2001 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 2002 path_status_desc[j].desc, path_type_desc[i].desc, 2003 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2004 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2005 } else if (cfg->cascaded_expander == 0xff) { 2006 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 2007 "WWN=%08X%08X\n", path_status_desc[j].desc, 2008 path_type_desc[i].desc, cfg->phy, 2009 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2010 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2011 } else if (cfg->phy == 0xff) { 2012 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 2013 "WWN=%08X%08X\n", path_status_desc[j].desc, 2014 path_type_desc[i].desc, cfg->cascaded_expander, 2015 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2016 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2017 } else { 2018 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 2019 "WWN=%08X%08X\n", path_status_desc[j].desc, 2020 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 2021 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2022 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2023 } 2024 } 2025 return; 2026 } 2027 } 2028 2029 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 2030 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2033} 2034 2035/** 2036 * ipr_log64_path_elem - Log a fabric path element. 2037 * @hostrcb: hostrcb struct 2038 * @cfg: fabric path element struct 2039 * 2040 * Return value: 2041 * none 2042 **/ 2043static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, 2044 struct ipr_hostrcb64_config_element *cfg) 2045{ 2046 int i, j; 2047 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; 2048 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2049 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2050 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2051 2052 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) 2053 return; 2054 2055 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2056 if (path_type_desc[i].type != type) 2057 continue; 2058 2059 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2060 if (path_status_desc[j].status != status) 2061 continue; 2062 2063 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", 2064 path_status_desc[j].desc, path_type_desc[i].desc, 2065 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]), 2066 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2067 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2068 return; 2069 } 2070 } 2071 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " 2072 "WWN=%08X%08X\n", cfg->type_status, 2073 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]), 2074 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2075 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2076} 2077 2078/** 2079 * ipr_log_fabric_error - Log a fabric error. 2080 * @ioa_cfg: ioa config struct 2081 * @hostrcb: hostrcb struct 2082 * 2083 * Return value: 2084 * none 2085 **/ 2086static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2087 struct ipr_hostrcb *hostrcb) 2088{ 2089 struct ipr_hostrcb_type_20_error *error; 2090 struct ipr_hostrcb_fabric_desc *fabric; 2091 struct ipr_hostrcb_config_element *cfg; 2092 int i, add_len; 2093 2094 error = &hostrcb->hcam.u.error.u.type_20_error; 2095 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2096 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2097 2098 add_len = be32_to_cpu(hostrcb->hcam.length) - 2099 (offsetof(struct ipr_hostrcb_error, u) + 2100 offsetof(struct ipr_hostrcb_type_20_error, desc)); 2101 2102 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2103 ipr_log_fabric_path(hostrcb, fabric); 2104 for_each_fabric_cfg(fabric, cfg) 2105 ipr_log_path_elem(hostrcb, cfg); 2106 2107 add_len -= be16_to_cpu(fabric->length); 2108 fabric = (struct ipr_hostrcb_fabric_desc *) 2109 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2110 } 2111 2112 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2113} 2114 2115/** 2116 * ipr_log_sis64_array_error - Log a sis64 array error. 2117 * @ioa_cfg: ioa config struct 2118 * @hostrcb: hostrcb struct 2119 * 2120 * Return value: 2121 * none 2122 **/ 2123static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, 2124 struct ipr_hostrcb *hostrcb) 2125{ 2126 int i, num_entries; 2127 struct ipr_hostrcb_type_24_error *error; 2128 struct ipr_hostrcb64_array_data_entry *array_entry; 2129 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2130 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 2131 2132 error = &hostrcb->hcam.u.error64.u.type_24_error; 2133 2134 ipr_err_separator; 2135 2136 ipr_err("RAID %s Array Configuration: %s\n", 2137 error->protection_level, 2138 ipr_format_resource_path(&error->last_res_path[0], &buffer[0])); 2139 2140 ipr_err_separator; 2141 2142 array_entry = error->array_member; 2143 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 2144 sizeof(error->array_member)); 2145 2146 for (i = 0; i < num_entries; i++, array_entry++) { 2147 2148 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 2149 continue; 2150 2151 if (error->exposed_mode_adn == i) 2152 ipr_err("Exposed Array Member %d:\n", i); 2153 else 2154 ipr_err("Array Member %d:\n", i); 2155 2156 ipr_err("Array Member %d:\n", i); 2157 ipr_log_ext_vpd(&array_entry->vpd); 2158 ipr_err("Current Location: %s", 2159 ipr_format_resource_path(&array_entry->res_path[0], &buffer[0])); 2160 ipr_err("Expected Location: %s", 2161 ipr_format_resource_path(&array_entry->expected_res_path[0], &buffer[0])); 2162 2163 ipr_err_separator; 2164 } 2165} 2166 2167/** 2168 * ipr_log_sis64_fabric_error - Log a sis64 fabric error. 2169 * @ioa_cfg: ioa config struct 2170 * @hostrcb: hostrcb struct 2171 * 2172 * Return value: 2173 * none 2174 **/ 2175static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2176 struct ipr_hostrcb *hostrcb) 2177{ 2178 struct ipr_hostrcb_type_30_error *error; 2179 struct ipr_hostrcb64_fabric_desc *fabric; 2180 struct ipr_hostrcb64_config_element *cfg; 2181 int i, add_len; 2182 2183 error = &hostrcb->hcam.u.error64.u.type_30_error; 2184 2185 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2186 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2187 2188 add_len = be32_to_cpu(hostrcb->hcam.length) - 2189 (offsetof(struct ipr_hostrcb64_error, u) + 2190 offsetof(struct ipr_hostrcb_type_30_error, desc)); 2191 2192 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2193 ipr_log64_fabric_path(hostrcb, fabric); 2194 for_each_fabric_cfg(fabric, cfg) 2195 ipr_log64_path_elem(hostrcb, cfg); 2196 2197 add_len -= be16_to_cpu(fabric->length); 2198 fabric = (struct ipr_hostrcb64_fabric_desc *) 2199 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2200 } 2201 2202 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2203} 2204 2205/** 2206 * ipr_log_generic_error - Log an adapter error. 2207 * @ioa_cfg: ioa config struct 2208 * @hostrcb: hostrcb struct 2209 * 2210 * Return value: 2211 * none 2212 **/ 2213static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 2214 struct ipr_hostrcb *hostrcb) 2215{ 2216 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 2217 be32_to_cpu(hostrcb->hcam.length)); 2218} 2219 2220/** 2221 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 2222 * @ioasc: IOASC 2223 * 2224 * This function will return the index of into the ipr_error_table 2225 * for the specified IOASC. If the IOASC is not in the table, 2226 * 0 will be returned, which points to the entry used for unknown errors. 2227 * 2228 * Return value: 2229 * index into the ipr_error_table 2230 **/ 2231static u32 ipr_get_error(u32 ioasc) 2232{ 2233 int i; 2234 2235 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 2236 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 2237 return i; 2238 2239 return 0; 2240} 2241 2242/** 2243 * ipr_handle_log_data - Log an adapter error. 2244 * @ioa_cfg: ioa config struct 2245 * @hostrcb: hostrcb struct 2246 * 2247 * This function logs an adapter error to the system. 2248 * 2249 * Return value: 2250 * none 2251 **/ 2252static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 2253 struct ipr_hostrcb *hostrcb) 2254{ 2255 u32 ioasc; 2256 int error_index; 2257 2258 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 2259 return; 2260 2261 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 2262 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 2263 2264 if (ioa_cfg->sis64) 2265 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2266 else 2267 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2268 2269 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || 2270 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { 2271 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 2272 scsi_report_bus_reset(ioa_cfg->host, 2273 hostrcb->hcam.u.error.fd_res_addr.bus); 2274 } 2275 2276 error_index = ipr_get_error(ioasc); 2277 2278 if (!ipr_error_table[error_index].log_hcam) 2279 return; 2280 2281 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 2282 2283 /* Set indication we have logged an error */ 2284 ioa_cfg->errors_logged++; 2285 2286 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 2287 return; 2288 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 2289 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 2290 2291 switch (hostrcb->hcam.overlay_id) { 2292 case IPR_HOST_RCB_OVERLAY_ID_2: 2293 ipr_log_cache_error(ioa_cfg, hostrcb); 2294 break; 2295 case IPR_HOST_RCB_OVERLAY_ID_3: 2296 ipr_log_config_error(ioa_cfg, hostrcb); 2297 break; 2298 case IPR_HOST_RCB_OVERLAY_ID_4: 2299 case IPR_HOST_RCB_OVERLAY_ID_6: 2300 ipr_log_array_error(ioa_cfg, hostrcb); 2301 break; 2302 case IPR_HOST_RCB_OVERLAY_ID_7: 2303 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 2304 break; 2305 case IPR_HOST_RCB_OVERLAY_ID_12: 2306 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 2307 break; 2308 case IPR_HOST_RCB_OVERLAY_ID_13: 2309 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 2310 break; 2311 case IPR_HOST_RCB_OVERLAY_ID_14: 2312 case IPR_HOST_RCB_OVERLAY_ID_16: 2313 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 2314 break; 2315 case IPR_HOST_RCB_OVERLAY_ID_17: 2316 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 2317 break; 2318 case IPR_HOST_RCB_OVERLAY_ID_20: 2319 ipr_log_fabric_error(ioa_cfg, hostrcb); 2320 break; 2321 case IPR_HOST_RCB_OVERLAY_ID_23: 2322 ipr_log_sis64_config_error(ioa_cfg, hostrcb); 2323 break; 2324 case IPR_HOST_RCB_OVERLAY_ID_24: 2325 case IPR_HOST_RCB_OVERLAY_ID_26: 2326 ipr_log_sis64_array_error(ioa_cfg, hostrcb); 2327 break; 2328 case IPR_HOST_RCB_OVERLAY_ID_30: 2329 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); 2330 break; 2331 case IPR_HOST_RCB_OVERLAY_ID_1: 2332 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 2333 default: 2334 ipr_log_generic_error(ioa_cfg, hostrcb); 2335 break; 2336 } 2337} 2338 2339/** 2340 * ipr_process_error - Op done function for an adapter error log. 2341 * @ipr_cmd: ipr command struct 2342 * 2343 * This function is the op done function for an error log host 2344 * controlled async from the adapter. It will log the error and 2345 * send the HCAM back to the adapter. 2346 * 2347 * Return value: 2348 * none 2349 **/ 2350static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 2351{ 2352 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2353 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 2354 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 2355 u32 fd_ioasc; 2356 2357 if (ioa_cfg->sis64) 2358 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2359 else 2360 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2361 2362 list_del(&hostrcb->queue); 2363 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 2364 2365 if (!ioasc) { 2366 ipr_handle_log_data(ioa_cfg, hostrcb); 2367 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 2368 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 2369 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 2370 dev_err(&ioa_cfg->pdev->dev, 2371 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 2372 } 2373 2374 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 2375} 2376 2377/** 2378 * ipr_timeout - An internally generated op has timed out. 2379 * @ipr_cmd: ipr command struct 2380 * 2381 * This function blocks host requests and initiates an 2382 * adapter reset. 2383 * 2384 * Return value: 2385 * none 2386 **/ 2387static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 2388{ 2389 unsigned long lock_flags = 0; 2390 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2391 2392 ENTER; 2393 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2394 2395 ioa_cfg->errors_logged++; 2396 dev_err(&ioa_cfg->pdev->dev, 2397 "Adapter being reset due to command timeout.\n"); 2398 2399 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2400 ioa_cfg->sdt_state = GET_DUMP; 2401 2402 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 2403 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2404 2405 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2406 LEAVE; 2407} 2408 2409/** 2410 * ipr_oper_timeout - Adapter timed out transitioning to operational 2411 * @ipr_cmd: ipr command struct 2412 * 2413 * This function blocks host requests and initiates an 2414 * adapter reset. 2415 * 2416 * Return value: 2417 * none 2418 **/ 2419static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 2420{ 2421 unsigned long lock_flags = 0; 2422 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2423 2424 ENTER; 2425 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2426 2427 ioa_cfg->errors_logged++; 2428 dev_err(&ioa_cfg->pdev->dev, 2429 "Adapter timed out transitioning to operational.\n"); 2430 2431 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2432 ioa_cfg->sdt_state = GET_DUMP; 2433 2434 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 2435 if (ipr_fastfail) 2436 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 2437 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2438 } 2439 2440 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2441 LEAVE; 2442} 2443 2444/** 2445 * ipr_reset_reload - Reset/Reload the IOA 2446 * @ioa_cfg: ioa config struct 2447 * @shutdown_type: shutdown type 2448 * 2449 * This function resets the adapter and re-initializes it. 2450 * This function assumes that all new host commands have been stopped. 2451 * Return value: 2452 * SUCCESS / FAILED 2453 **/ 2454static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 2455 enum ipr_shutdown_type shutdown_type) 2456{ 2457 if (!ioa_cfg->in_reset_reload) 2458 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 2459 2460 spin_unlock_irq(ioa_cfg->host->host_lock); 2461 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2462 spin_lock_irq(ioa_cfg->host->host_lock); 2463 2464 /* If we got hit with a host reset while we were already resetting 2465 the adapter for some reason, and the reset failed. */ 2466 if (ioa_cfg->ioa_is_dead) { 2467 ipr_trace; 2468 return FAILED; 2469 } 2470 2471 return SUCCESS; 2472} 2473 2474/** 2475 * ipr_find_ses_entry - Find matching SES in SES table 2476 * @res: resource entry struct of SES 2477 * 2478 * Return value: 2479 * pointer to SES table entry / NULL on failure 2480 **/ 2481static const struct ipr_ses_table_entry * 2482ipr_find_ses_entry(struct ipr_resource_entry *res) 2483{ 2484 int i, j, matches; 2485 struct ipr_std_inq_vpids *vpids; 2486 const struct ipr_ses_table_entry *ste = ipr_ses_table; 2487 2488 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 2489 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 2490 if (ste->compare_product_id_byte[j] == 'X') { 2491 vpids = &res->std_inq_data.vpids; 2492 if (vpids->product_id[j] == ste->product_id[j]) 2493 matches++; 2494 else 2495 break; 2496 } else 2497 matches++; 2498 } 2499 2500 if (matches == IPR_PROD_ID_LEN) 2501 return ste; 2502 } 2503 2504 return NULL; 2505} 2506 2507/** 2508 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 2509 * @ioa_cfg: ioa config struct 2510 * @bus: SCSI bus 2511 * @bus_width: bus width 2512 * 2513 * Return value: 2514 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 2515 * For a 2-byte wide SCSI bus, the maximum transfer speed is 2516 * twice the maximum transfer rate (e.g. for a wide enabled bus, 2517 * max 160MHz = max 320MB/sec). 2518 **/ 2519static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 2520{ 2521 struct ipr_resource_entry *res; 2522 const struct ipr_ses_table_entry *ste; 2523 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 2524 2525 /* Loop through each config table entry in the config table buffer */ 2526 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2527 if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) 2528 continue; 2529 2530 if (bus != res->bus) 2531 continue; 2532 2533 if (!(ste = ipr_find_ses_entry(res))) 2534 continue; 2535 2536 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 2537 } 2538 2539 return max_xfer_rate; 2540} 2541 2542/** 2543 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 2544 * @ioa_cfg: ioa config struct 2545 * @max_delay: max delay in micro-seconds to wait 2546 * 2547 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 2548 * 2549 * Return value: 2550 * 0 on success / other on failure 2551 **/ 2552static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 2553{ 2554 volatile u32 pcii_reg; 2555 int delay = 1; 2556 2557 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 2558 while (delay < max_delay) { 2559 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 2560 2561 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 2562 return 0; 2563 2564 /* udelay cannot be used if delay is more than a few milliseconds */ 2565 if ((delay / 1000) > MAX_UDELAY_MS) 2566 mdelay(delay / 1000); 2567 else 2568 udelay(delay); 2569 2570 delay += delay; 2571 } 2572 return -EIO; 2573} 2574 2575/** 2576 * ipr_get_sis64_dump_data_section - Dump IOA memory 2577 * @ioa_cfg: ioa config struct 2578 * @start_addr: adapter address to dump 2579 * @dest: destination kernel buffer 2580 * @length_in_words: length to dump in 4 byte words 2581 * 2582 * Return value: 2583 * 0 on success 2584 **/ 2585static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2586 u32 start_addr, 2587 __be32 *dest, u32 length_in_words) 2588{ 2589 int i; 2590 2591 for (i = 0; i < length_in_words; i++) { 2592 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); 2593 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); 2594 dest++; 2595 } 2596 2597 return 0; 2598} 2599 2600/** 2601 * ipr_get_ldump_data_section - Dump IOA memory 2602 * @ioa_cfg: ioa config struct 2603 * @start_addr: adapter address to dump 2604 * @dest: destination kernel buffer 2605 * @length_in_words: length to dump in 4 byte words 2606 * 2607 * Return value: 2608 * 0 on success / -EIO on failure 2609 **/ 2610static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2611 u32 start_addr, 2612 __be32 *dest, u32 length_in_words) 2613{ 2614 volatile u32 temp_pcii_reg; 2615 int i, delay = 0; 2616 2617 if (ioa_cfg->sis64) 2618 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, 2619 dest, length_in_words); 2620 2621 /* Write IOA interrupt reg starting LDUMP state */ 2622 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 2623 ioa_cfg->regs.set_uproc_interrupt_reg32); 2624 2625 /* Wait for IO debug acknowledge */ 2626 if (ipr_wait_iodbg_ack(ioa_cfg, 2627 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 2628 dev_err(&ioa_cfg->pdev->dev, 2629 "IOA dump long data transfer timeout\n"); 2630 return -EIO; 2631 } 2632 2633 /* Signal LDUMP interlocked - clear IO debug ack */ 2634 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2635 ioa_cfg->regs.clr_interrupt_reg); 2636 2637 /* Write Mailbox with starting address */ 2638 writel(start_addr, ioa_cfg->ioa_mailbox); 2639 2640 /* Signal address valid - clear IOA Reset alert */ 2641 writel(IPR_UPROCI_RESET_ALERT, 2642 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2643 2644 for (i = 0; i < length_in_words; i++) { 2645 /* Wait for IO debug acknowledge */ 2646 if (ipr_wait_iodbg_ack(ioa_cfg, 2647 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2648 dev_err(&ioa_cfg->pdev->dev, 2649 "IOA dump short data transfer timeout\n"); 2650 return -EIO; 2651 } 2652 2653 /* Read data from mailbox and increment destination pointer */ 2654 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2655 dest++; 2656 2657 /* For all but the last word of data, signal data received */ 2658 if (i < (length_in_words - 1)) { 2659 /* Signal dump data received - Clear IO debug Ack */ 2660 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2661 ioa_cfg->regs.clr_interrupt_reg); 2662 } 2663 } 2664 2665 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2666 writel(IPR_UPROCI_RESET_ALERT, 2667 ioa_cfg->regs.set_uproc_interrupt_reg32); 2668 2669 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2670 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2671 2672 /* Signal dump data received - Clear IO debug Ack */ 2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2674 ioa_cfg->regs.clr_interrupt_reg); 2675 2676 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2677 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2678 temp_pcii_reg = 2679 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 2680 2681 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2682 return 0; 2683 2684 udelay(10); 2685 delay += 10; 2686 } 2687 2688 return 0; 2689} 2690 2691#ifdef CONFIG_SCSI_IPR_DUMP 2692/** 2693 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2694 * @ioa_cfg: ioa config struct 2695 * @pci_address: adapter address 2696 * @length: length of data to copy 2697 * 2698 * Copy data from PCI adapter to kernel buffer. 2699 * Note: length MUST be a 4 byte multiple 2700 * Return value: 2701 * 0 on success / other on failure 2702 **/ 2703static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2704 unsigned long pci_address, u32 length) 2705{ 2706 int bytes_copied = 0; 2707 int cur_len, rc, rem_len, rem_page_len; 2708 __be32 *page; 2709 unsigned long lock_flags = 0; 2710 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2711 2712 while (bytes_copied < length && 2713 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2714 if (ioa_dump->page_offset >= PAGE_SIZE || 2715 ioa_dump->page_offset == 0) { 2716 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2717 2718 if (!page) { 2719 ipr_trace; 2720 return bytes_copied; 2721 } 2722 2723 ioa_dump->page_offset = 0; 2724 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2725 ioa_dump->next_page_index++; 2726 } else 2727 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2728 2729 rem_len = length - bytes_copied; 2730 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2731 cur_len = min(rem_len, rem_page_len); 2732 2733 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2734 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2735 rc = -EIO; 2736 } else { 2737 rc = ipr_get_ldump_data_section(ioa_cfg, 2738 pci_address + bytes_copied, 2739 &page[ioa_dump->page_offset / 4], 2740 (cur_len / sizeof(u32))); 2741 } 2742 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2743 2744 if (!rc) { 2745 ioa_dump->page_offset += cur_len; 2746 bytes_copied += cur_len; 2747 } else { 2748 ipr_trace; 2749 break; 2750 } 2751 schedule(); 2752 } 2753 2754 return bytes_copied; 2755} 2756 2757/** 2758 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2759 * @hdr: dump entry header struct 2760 * 2761 * Return value: 2762 * nothing 2763 **/ 2764static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2765{ 2766 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2767 hdr->num_elems = 1; 2768 hdr->offset = sizeof(*hdr); 2769 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2770} 2771 2772/** 2773 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2774 * @ioa_cfg: ioa config struct 2775 * @driver_dump: driver dump struct 2776 * 2777 * Return value: 2778 * nothing 2779 **/ 2780static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2781 struct ipr_driver_dump *driver_dump) 2782{ 2783 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2784 2785 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2786 driver_dump->ioa_type_entry.hdr.len = 2787 sizeof(struct ipr_dump_ioa_type_entry) - 2788 sizeof(struct ipr_dump_entry_header); 2789 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2790 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2791 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2792 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2793 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2794 ucode_vpd->minor_release[1]; 2795 driver_dump->hdr.num_entries++; 2796} 2797 2798/** 2799 * ipr_dump_version_data - Fill in the driver version in the dump. 2800 * @ioa_cfg: ioa config struct 2801 * @driver_dump: driver dump struct 2802 * 2803 * Return value: 2804 * nothing 2805 **/ 2806static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2807 struct ipr_driver_dump *driver_dump) 2808{ 2809 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2810 driver_dump->version_entry.hdr.len = 2811 sizeof(struct ipr_dump_version_entry) - 2812 sizeof(struct ipr_dump_entry_header); 2813 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2814 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2815 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2816 driver_dump->hdr.num_entries++; 2817} 2818 2819/** 2820 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2821 * @ioa_cfg: ioa config struct 2822 * @driver_dump: driver dump struct 2823 * 2824 * Return value: 2825 * nothing 2826 **/ 2827static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2828 struct ipr_driver_dump *driver_dump) 2829{ 2830 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2831 driver_dump->trace_entry.hdr.len = 2832 sizeof(struct ipr_dump_trace_entry) - 2833 sizeof(struct ipr_dump_entry_header); 2834 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2835 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2836 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2837 driver_dump->hdr.num_entries++; 2838} 2839 2840/** 2841 * ipr_dump_location_data - Fill in the IOA location in the dump. 2842 * @ioa_cfg: ioa config struct 2843 * @driver_dump: driver dump struct 2844 * 2845 * Return value: 2846 * nothing 2847 **/ 2848static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2849 struct ipr_driver_dump *driver_dump) 2850{ 2851 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2852 driver_dump->location_entry.hdr.len = 2853 sizeof(struct ipr_dump_location_entry) - 2854 sizeof(struct ipr_dump_entry_header); 2855 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2856 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2857 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2858 driver_dump->hdr.num_entries++; 2859} 2860 2861/** 2862 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2863 * @ioa_cfg: ioa config struct 2864 * @dump: dump struct 2865 * 2866 * Return value: 2867 * nothing 2868 **/ 2869static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2870{ 2871 unsigned long start_addr, sdt_word; 2872 unsigned long lock_flags = 0; 2873 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2874 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2875 u32 num_entries, start_off, end_off; 2876 u32 bytes_to_copy, bytes_copied, rc; 2877 struct ipr_sdt *sdt; 2878 int valid = 1; 2879 int i; 2880 2881 ENTER; 2882 2883 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2884 2885 if (ioa_cfg->sdt_state != GET_DUMP) { 2886 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2887 return; 2888 } 2889 2890 start_addr = readl(ioa_cfg->ioa_mailbox); 2891 2892 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { 2893 dev_err(&ioa_cfg->pdev->dev, 2894 "Invalid dump table format: %lx\n", start_addr); 2895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2896 return; 2897 } 2898 2899 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2900 2901 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2902 2903 /* Initialize the overall dump header */ 2904 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2905 driver_dump->hdr.num_entries = 1; 2906 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2907 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2908 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2909 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2910 2911 ipr_dump_version_data(ioa_cfg, driver_dump); 2912 ipr_dump_location_data(ioa_cfg, driver_dump); 2913 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2914 ipr_dump_trace_data(ioa_cfg, driver_dump); 2915 2916 /* Update dump_header */ 2917 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2918 2919 /* IOA Dump entry */ 2920 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2921 ioa_dump->hdr.len = 0; 2922 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2923 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2924 2925 /* First entries in sdt are actually a list of dump addresses and 2926 lengths to gather the real dump data. sdt represents the pointer 2927 to the ioa generated dump table. Dump data will be extracted based 2928 on entries in this table */ 2929 sdt = &ioa_dump->sdt; 2930 2931 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2932 sizeof(struct ipr_sdt) / sizeof(__be32)); 2933 2934 /* Smart Dump table is ready to use and the first entry is valid */ 2935 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 2936 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 2937 dev_err(&ioa_cfg->pdev->dev, 2938 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2939 rc, be32_to_cpu(sdt->hdr.state)); 2940 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2941 ioa_cfg->sdt_state = DUMP_OBTAINED; 2942 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2943 return; 2944 } 2945 2946 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2947 2948 if (num_entries > IPR_NUM_SDT_ENTRIES) 2949 num_entries = IPR_NUM_SDT_ENTRIES; 2950 2951 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2952 2953 for (i = 0; i < num_entries; i++) { 2954 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2955 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2956 break; 2957 } 2958 2959 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2960 sdt_word = be32_to_cpu(sdt->entry[i].start_token); 2961 if (ioa_cfg->sis64) 2962 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); 2963 else { 2964 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2965 end_off = be32_to_cpu(sdt->entry[i].end_token); 2966 2967 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) 2968 bytes_to_copy = end_off - start_off; 2969 else 2970 valid = 0; 2971 } 2972 if (valid) { 2973 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2974 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2975 continue; 2976 } 2977 2978 /* Copy data from adapter to driver buffers */ 2979 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2980 bytes_to_copy); 2981 2982 ioa_dump->hdr.len += bytes_copied; 2983 2984 if (bytes_copied != bytes_to_copy) { 2985 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2986 break; 2987 } 2988 } 2989 } 2990 } 2991 2992 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 2993 2994 /* Update dump_header */ 2995 driver_dump->hdr.len += ioa_dump->hdr.len; 2996 wmb(); 2997 ioa_cfg->sdt_state = DUMP_OBTAINED; 2998 LEAVE; 2999} 3000 3001#else 3002#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 3003#endif 3004 3005/** 3006 * ipr_release_dump - Free adapter dump memory 3007 * @kref: kref struct 3008 * 3009 * Return value: 3010 * nothing 3011 **/ 3012static void ipr_release_dump(struct kref *kref) 3013{ 3014 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 3015 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 3016 unsigned long lock_flags = 0; 3017 int i; 3018 3019 ENTER; 3020 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3021 ioa_cfg->dump = NULL; 3022 ioa_cfg->sdt_state = INACTIVE; 3023 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3024 3025 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 3026 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 3027 3028 kfree(dump); 3029 LEAVE; 3030} 3031 3032/** 3033 * ipr_worker_thread - Worker thread 3034 * @work: ioa config struct 3035 * 3036 * Called at task level from a work thread. This function takes care 3037 * of adding and removing device from the mid-layer as configuration 3038 * changes are detected by the adapter. 3039 * 3040 * Return value: 3041 * nothing 3042 **/ 3043static void ipr_worker_thread(struct work_struct *work) 3044{ 3045 unsigned long lock_flags; 3046 struct ipr_resource_entry *res; 3047 struct scsi_device *sdev; 3048 struct ipr_dump *dump; 3049 struct ipr_ioa_cfg *ioa_cfg = 3050 container_of(work, struct ipr_ioa_cfg, work_q); 3051 u8 bus, target, lun; 3052 int did_work; 3053 3054 ENTER; 3055 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3056 3057 if (ioa_cfg->sdt_state == GET_DUMP) { 3058 dump = ioa_cfg->dump; 3059 if (!dump) { 3060 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3061 return; 3062 } 3063 kref_get(&dump->kref); 3064 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3065 ipr_get_ioa_dump(ioa_cfg, dump); 3066 kref_put(&dump->kref, ipr_release_dump); 3067 3068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3069 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 3070 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3071 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3072 return; 3073 } 3074 3075restart: 3076 do { 3077 did_work = 0; 3078 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 3079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3080 return; 3081 } 3082 3083 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3084 if (res->del_from_ml && res->sdev) { 3085 did_work = 1; 3086 sdev = res->sdev; 3087 if (!scsi_device_get(sdev)) { 3088 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3089 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3090 scsi_remove_device(sdev); 3091 scsi_device_put(sdev); 3092 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3093 } 3094 break; 3095 } 3096 } 3097 } while(did_work); 3098 3099 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3100 if (res->add_to_ml) { 3101 bus = res->bus; 3102 target = res->target; 3103 lun = res->lun; 3104 res->add_to_ml = 0; 3105 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3106 scsi_add_device(ioa_cfg->host, bus, target, lun); 3107 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3108 goto restart; 3109 } 3110 } 3111 3112 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3113 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3114 LEAVE; 3115} 3116 3117#ifdef CONFIG_SCSI_IPR_TRACE 3118/** 3119 * ipr_read_trace - Dump the adapter trace 3120 * @kobj: kobject struct 3121 * @bin_attr: bin_attribute struct 3122 * @buf: buffer 3123 * @off: offset 3124 * @count: buffer size 3125 * 3126 * Return value: 3127 * number of bytes printed to buffer 3128 **/ 3129static ssize_t ipr_read_trace(struct kobject *kobj, 3130 struct bin_attribute *bin_attr, 3131 char *buf, loff_t off, size_t count) 3132{ 3133 struct device *dev = container_of(kobj, struct device, kobj); 3134 struct Scsi_Host *shost = class_to_shost(dev); 3135 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3136 unsigned long lock_flags = 0; 3137 ssize_t ret; 3138 3139 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3140 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3141 IPR_TRACE_SIZE); 3142 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3143 3144 return ret; 3145} 3146 3147static struct bin_attribute ipr_trace_attr = { 3148 .attr = { 3149 .name = "trace", 3150 .mode = S_IRUGO, 3151 }, 3152 .size = 0, 3153 .read = ipr_read_trace, 3154}; 3155#endif 3156 3157/** 3158 * ipr_show_fw_version - Show the firmware version 3159 * @dev: class device struct 3160 * @buf: buffer 3161 * 3162 * Return value: 3163 * number of bytes printed to buffer 3164 **/ 3165static ssize_t ipr_show_fw_version(struct device *dev, 3166 struct device_attribute *attr, char *buf) 3167{ 3168 struct Scsi_Host *shost = class_to_shost(dev); 3169 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3170 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3171 unsigned long lock_flags = 0; 3172 int len; 3173 3174 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3175 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3176 ucode_vpd->major_release, ucode_vpd->card_type, 3177 ucode_vpd->minor_release[0], 3178 ucode_vpd->minor_release[1]); 3179 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3180 return len; 3181} 3182 3183static struct device_attribute ipr_fw_version_attr = { 3184 .attr = { 3185 .name = "fw_version", 3186 .mode = S_IRUGO, 3187 }, 3188 .show = ipr_show_fw_version, 3189}; 3190 3191/** 3192 * ipr_show_log_level - Show the adapter's error logging level 3193 * @dev: class device struct 3194 * @buf: buffer 3195 * 3196 * Return value: 3197 * number of bytes printed to buffer 3198 **/ 3199static ssize_t ipr_show_log_level(struct device *dev, 3200 struct device_attribute *attr, char *buf) 3201{ 3202 struct Scsi_Host *shost = class_to_shost(dev); 3203 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3204 unsigned long lock_flags = 0; 3205 int len; 3206 3207 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3208 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3209 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3210 return len; 3211} 3212 3213/** 3214 * ipr_store_log_level - Change the adapter's error logging level 3215 * @dev: class device struct 3216 * @buf: buffer 3217 * 3218 * Return value: 3219 * number of bytes printed to buffer 3220 **/ 3221static ssize_t ipr_store_log_level(struct device *dev, 3222 struct device_attribute *attr, 3223 const char *buf, size_t count) 3224{ 3225 struct Scsi_Host *shost = class_to_shost(dev); 3226 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3227 unsigned long lock_flags = 0; 3228 3229 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3230 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3231 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3232 return strlen(buf); 3233} 3234 3235static struct device_attribute ipr_log_level_attr = { 3236 .attr = { 3237 .name = "log_level", 3238 .mode = S_IRUGO | S_IWUSR, 3239 }, 3240 .show = ipr_show_log_level, 3241 .store = ipr_store_log_level 3242}; 3243 3244/** 3245 * ipr_store_diagnostics - IOA Diagnostics interface 3246 * @dev: device struct 3247 * @buf: buffer 3248 * @count: buffer size 3249 * 3250 * This function will reset the adapter and wait a reasonable 3251 * amount of time for any errors that the adapter might log. 3252 * 3253 * Return value: 3254 * count on success / other on failure 3255 **/ 3256static ssize_t ipr_store_diagnostics(struct device *dev, 3257 struct device_attribute *attr, 3258 const char *buf, size_t count) 3259{ 3260 struct Scsi_Host *shost = class_to_shost(dev); 3261 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3262 unsigned long lock_flags = 0; 3263 int rc = count; 3264 3265 if (!capable(CAP_SYS_ADMIN)) 3266 return -EACCES; 3267 3268 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3269 while(ioa_cfg->in_reset_reload) { 3270 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3271 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3272 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3273 } 3274 3275 ioa_cfg->errors_logged = 0; 3276 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3277 3278 if (ioa_cfg->in_reset_reload) { 3279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3280 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3281 3282 /* Wait for a second for any errors to be logged */ 3283 msleep(1000); 3284 } else { 3285 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3286 return -EIO; 3287 } 3288 3289 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3290 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3291 rc = -EIO; 3292 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3293 3294 return rc; 3295} 3296 3297static struct device_attribute ipr_diagnostics_attr = { 3298 .attr = { 3299 .name = "run_diagnostics", 3300 .mode = S_IWUSR, 3301 }, 3302 .store = ipr_store_diagnostics 3303}; 3304 3305/** 3306 * ipr_show_adapter_state - Show the adapter's state 3307 * @class_dev: device struct 3308 * @buf: buffer 3309 * 3310 * Return value: 3311 * number of bytes printed to buffer 3312 **/ 3313static ssize_t ipr_show_adapter_state(struct device *dev, 3314 struct device_attribute *attr, char *buf) 3315{ 3316 struct Scsi_Host *shost = class_to_shost(dev); 3317 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3318 unsigned long lock_flags = 0; 3319 int len; 3320 3321 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3322 if (ioa_cfg->ioa_is_dead) 3323 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3324 else 3325 len = snprintf(buf, PAGE_SIZE, "online\n"); 3326 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3327 return len; 3328} 3329 3330/** 3331 * ipr_store_adapter_state - Change adapter state 3332 * @dev: device struct 3333 * @buf: buffer 3334 * @count: buffer size 3335 * 3336 * This function will change the adapter's state. 3337 * 3338 * Return value: 3339 * count on success / other on failure 3340 **/ 3341static ssize_t ipr_store_adapter_state(struct device *dev, 3342 struct device_attribute *attr, 3343 const char *buf, size_t count) 3344{ 3345 struct Scsi_Host *shost = class_to_shost(dev); 3346 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3347 unsigned long lock_flags; 3348 int result = count; 3349 3350 if (!capable(CAP_SYS_ADMIN)) 3351 return -EACCES; 3352 3353 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3354 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 3355 ioa_cfg->ioa_is_dead = 0; 3356 ioa_cfg->reset_retries = 0; 3357 ioa_cfg->in_ioa_bringdown = 0; 3358 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3359 } 3360 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3361 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3362 3363 return result; 3364} 3365 3366static struct device_attribute ipr_ioa_state_attr = { 3367 .attr = { 3368 .name = "online_state", 3369 .mode = S_IRUGO | S_IWUSR, 3370 }, 3371 .show = ipr_show_adapter_state, 3372 .store = ipr_store_adapter_state 3373}; 3374 3375/** 3376 * ipr_store_reset_adapter - Reset the adapter 3377 * @dev: device struct 3378 * @buf: buffer 3379 * @count: buffer size 3380 * 3381 * This function will reset the adapter. 3382 * 3383 * Return value: 3384 * count on success / other on failure 3385 **/ 3386static ssize_t ipr_store_reset_adapter(struct device *dev, 3387 struct device_attribute *attr, 3388 const char *buf, size_t count) 3389{ 3390 struct Scsi_Host *shost = class_to_shost(dev); 3391 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3392 unsigned long lock_flags; 3393 int result = count; 3394 3395 if (!capable(CAP_SYS_ADMIN)) 3396 return -EACCES; 3397 3398 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3399 if (!ioa_cfg->in_reset_reload) 3400 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3401 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3402 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3403 3404 return result; 3405} 3406 3407static struct device_attribute ipr_ioa_reset_attr = { 3408 .attr = { 3409 .name = "reset_host", 3410 .mode = S_IWUSR, 3411 }, 3412 .store = ipr_store_reset_adapter 3413}; 3414 3415/** 3416 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3417 * @buf_len: buffer length 3418 * 3419 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3420 * list to use for microcode download 3421 * 3422 * Return value: 3423 * pointer to sglist / NULL on failure 3424 **/ 3425static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3426{ 3427 int sg_size, order, bsize_elem, num_elem, i, j; 3428 struct ipr_sglist *sglist; 3429 struct scatterlist *scatterlist; 3430 struct page *page; 3431 3432 /* Get the minimum size per scatter/gather element */ 3433 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3434 3435 /* Get the actual size per element */ 3436 order = get_order(sg_size); 3437 3438 /* Determine the actual number of bytes per element */ 3439 bsize_elem = PAGE_SIZE * (1 << order); 3440 3441 /* Determine the actual number of sg entries needed */ 3442 if (buf_len % bsize_elem) 3443 num_elem = (buf_len / bsize_elem) + 1; 3444 else 3445 num_elem = buf_len / bsize_elem; 3446 3447 /* Allocate a scatter/gather list for the DMA */ 3448 sglist = kzalloc(sizeof(struct ipr_sglist) + 3449 (sizeof(struct scatterlist) * (num_elem - 1)), 3450 GFP_KERNEL); 3451 3452 if (sglist == NULL) { 3453 ipr_trace; 3454 return NULL; 3455 } 3456 3457 scatterlist = sglist->scatterlist; 3458 sg_init_table(scatterlist, num_elem); 3459 3460 sglist->order = order; 3461 sglist->num_sg = num_elem; 3462 3463 /* Allocate a bunch of sg elements */ 3464 for (i = 0; i < num_elem; i++) { 3465 page = alloc_pages(GFP_KERNEL, order); 3466 if (!page) { 3467 ipr_trace; 3468 3469 /* Free up what we already allocated */ 3470 for (j = i - 1; j >= 0; j--) 3471 __free_pages(sg_page(&scatterlist[j]), order); 3472 kfree(sglist); 3473 return NULL; 3474 } 3475 3476 sg_set_page(&scatterlist[i], page, 0, 0); 3477 } 3478 3479 return sglist; 3480} 3481 3482/** 3483 * ipr_free_ucode_buffer - Frees a microcode download buffer 3484 * @p_dnld: scatter/gather list pointer 3485 * 3486 * Free a DMA'able ucode download buffer previously allocated with 3487 * ipr_alloc_ucode_buffer 3488 * 3489 * Return value: 3490 * nothing 3491 **/ 3492static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3493{ 3494 int i; 3495 3496 for (i = 0; i < sglist->num_sg; i++) 3497 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 3498 3499 kfree(sglist); 3500} 3501 3502/** 3503 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3504 * @sglist: scatter/gather list pointer 3505 * @buffer: buffer pointer 3506 * @len: buffer length 3507 * 3508 * Copy a microcode image from a user buffer into a buffer allocated by 3509 * ipr_alloc_ucode_buffer 3510 * 3511 * Return value: 3512 * 0 on success / other on failure 3513 **/ 3514static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3515 u8 *buffer, u32 len) 3516{ 3517 int bsize_elem, i, result = 0; 3518 struct scatterlist *scatterlist; 3519 void *kaddr; 3520 3521 /* Determine the actual number of bytes per element */ 3522 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3523 3524 scatterlist = sglist->scatterlist; 3525 3526 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 3527 struct page *page = sg_page(&scatterlist[i]); 3528 3529 kaddr = kmap(page); 3530 memcpy(kaddr, buffer, bsize_elem); 3531 kunmap(page); 3532 3533 scatterlist[i].length = bsize_elem; 3534 3535 if (result != 0) { 3536 ipr_trace; 3537 return result; 3538 } 3539 } 3540 3541 if (len % bsize_elem) { 3542 struct page *page = sg_page(&scatterlist[i]); 3543 3544 kaddr = kmap(page); 3545 memcpy(kaddr, buffer, len % bsize_elem); 3546 kunmap(page); 3547 3548 scatterlist[i].length = len % bsize_elem; 3549 } 3550 3551 sglist->buffer_len = len; 3552 return result; 3553} 3554 3555/** 3556 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3557 * @ipr_cmd: ipr command struct 3558 * @sglist: scatter/gather list 3559 * 3560 * Builds a microcode download IOA data list (IOADL). 3561 * 3562 **/ 3563static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3564 struct ipr_sglist *sglist) 3565{ 3566 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3567 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3568 struct scatterlist *scatterlist = sglist->scatterlist; 3569 int i; 3570 3571 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3572 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3573 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3574 3575 ioarcb->ioadl_len = 3576 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3577 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3578 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3579 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); 3580 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); 3581 } 3582 3583 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3584} 3585 3586/** 3587 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3588 * @ipr_cmd: ipr command struct 3589 * @sglist: scatter/gather list 3590 * 3591 * Builds a microcode download IOA data list (IOADL). 3592 * 3593 **/ 3594static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3595 struct ipr_sglist *sglist) 3596{ 3597 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3598 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3599 struct scatterlist *scatterlist = sglist->scatterlist; 3600 int i; 3601 3602 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3603 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3604 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3605 3606 ioarcb->ioadl_len = 3607 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3608 3609 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3610 ioadl[i].flags_and_data_len = 3611 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3612 ioadl[i].address = 3613 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3614 } 3615 3616 ioadl[i-1].flags_and_data_len |= 3617 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3618} 3619 3620/** 3621 * ipr_update_ioa_ucode - Update IOA's microcode 3622 * @ioa_cfg: ioa config struct 3623 * @sglist: scatter/gather list 3624 * 3625 * Initiate an adapter reset to update the IOA's microcode 3626 * 3627 * Return value: 3628 * 0 on success / -EIO on failure 3629 **/ 3630static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3631 struct ipr_sglist *sglist) 3632{ 3633 unsigned long lock_flags; 3634 3635 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3636 while(ioa_cfg->in_reset_reload) { 3637 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3638 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3639 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3640 } 3641 3642 if (ioa_cfg->ucode_sglist) { 3643 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3644 dev_err(&ioa_cfg->pdev->dev, 3645 "Microcode download already in progress\n"); 3646 return -EIO; 3647 } 3648 3649 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3650 sglist->num_sg, DMA_TO_DEVICE); 3651 3652 if (!sglist->num_dma_sg) { 3653 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3654 dev_err(&ioa_cfg->pdev->dev, 3655 "Failed to map microcode download buffer!\n"); 3656 return -EIO; 3657 } 3658 3659 ioa_cfg->ucode_sglist = sglist; 3660 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3661 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3662 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3663 3664 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3665 ioa_cfg->ucode_sglist = NULL; 3666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3667 return 0; 3668} 3669 3670/** 3671 * ipr_store_update_fw - Update the firmware on the adapter 3672 * @class_dev: device struct 3673 * @buf: buffer 3674 * @count: buffer size 3675 * 3676 * This function will update the firmware on the adapter. 3677 * 3678 * Return value: 3679 * count on success / other on failure 3680 **/ 3681static ssize_t ipr_store_update_fw(struct device *dev, 3682 struct device_attribute *attr, 3683 const char *buf, size_t count) 3684{ 3685 struct Scsi_Host *shost = class_to_shost(dev); 3686 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3687 struct ipr_ucode_image_header *image_hdr; 3688 const struct firmware *fw_entry; 3689 struct ipr_sglist *sglist; 3690 char fname[100]; 3691 char *src; 3692 int len, result, dnld_size; 3693 3694 if (!capable(CAP_SYS_ADMIN)) 3695 return -EACCES; 3696 3697 len = snprintf(fname, 99, "%s", buf); 3698 fname[len-1] = '\0'; 3699 3700 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3701 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3702 return -EIO; 3703 } 3704 3705 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3706 3707 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3708 (ioa_cfg->vpd_cbs->page3_data.card_type && 3709 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3710 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3711 release_firmware(fw_entry); 3712 return -EINVAL; 3713 } 3714 3715 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3716 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3717 sglist = ipr_alloc_ucode_buffer(dnld_size); 3718 3719 if (!sglist) { 3720 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3721 release_firmware(fw_entry); 3722 return -ENOMEM; 3723 } 3724 3725 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3726 3727 if (result) { 3728 dev_err(&ioa_cfg->pdev->dev, 3729 "Microcode buffer copy to DMA buffer failed\n"); 3730 goto out; 3731 } 3732 3733 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3734 3735 if (!result) 3736 result = count; 3737out: 3738 ipr_free_ucode_buffer(sglist); 3739 release_firmware(fw_entry); 3740 return result; 3741} 3742 3743static struct device_attribute ipr_update_fw_attr = { 3744 .attr = { 3745 .name = "update_fw", 3746 .mode = S_IWUSR, 3747 }, 3748 .store = ipr_store_update_fw 3749}; 3750 3751static struct device_attribute *ipr_ioa_attrs[] = { 3752 &ipr_fw_version_attr, 3753 &ipr_log_level_attr, 3754 &ipr_diagnostics_attr, 3755 &ipr_ioa_state_attr, 3756 &ipr_ioa_reset_attr, 3757 &ipr_update_fw_attr, 3758 NULL, 3759}; 3760 3761#ifdef CONFIG_SCSI_IPR_DUMP 3762/** 3763 * ipr_read_dump - Dump the adapter 3764 * @kobj: kobject struct 3765 * @bin_attr: bin_attribute struct 3766 * @buf: buffer 3767 * @off: offset 3768 * @count: buffer size 3769 * 3770 * Return value: 3771 * number of bytes printed to buffer 3772 **/ 3773static ssize_t ipr_read_dump(struct kobject *kobj, 3774 struct bin_attribute *bin_attr, 3775 char *buf, loff_t off, size_t count) 3776{ 3777 struct device *cdev = container_of(kobj, struct device, kobj); 3778 struct Scsi_Host *shost = class_to_shost(cdev); 3779 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3780 struct ipr_dump *dump; 3781 unsigned long lock_flags = 0; 3782 char *src; 3783 int len; 3784 size_t rc = count; 3785 3786 if (!capable(CAP_SYS_ADMIN)) 3787 return -EACCES; 3788 3789 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3790 dump = ioa_cfg->dump; 3791 3792 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3793 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3794 return 0; 3795 } 3796 kref_get(&dump->kref); 3797 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3798 3799 if (off > dump->driver_dump.hdr.len) { 3800 kref_put(&dump->kref, ipr_release_dump); 3801 return 0; 3802 } 3803 3804 if (off + count > dump->driver_dump.hdr.len) { 3805 count = dump->driver_dump.hdr.len - off; 3806 rc = count; 3807 } 3808 3809 if (count && off < sizeof(dump->driver_dump)) { 3810 if (off + count > sizeof(dump->driver_dump)) 3811 len = sizeof(dump->driver_dump) - off; 3812 else 3813 len = count; 3814 src = (u8 *)&dump->driver_dump + off; 3815 memcpy(buf, src, len); 3816 buf += len; 3817 off += len; 3818 count -= len; 3819 } 3820 3821 off -= sizeof(dump->driver_dump); 3822 3823 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3824 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3825 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3826 else 3827 len = count; 3828 src = (u8 *)&dump->ioa_dump + off; 3829 memcpy(buf, src, len); 3830 buf += len; 3831 off += len; 3832 count -= len; 3833 } 3834 3835 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3836 3837 while (count) { 3838 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3839 len = PAGE_ALIGN(off) - off; 3840 else 3841 len = count; 3842 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3843 src += off & ~PAGE_MASK; 3844 memcpy(buf, src, len); 3845 buf += len; 3846 off += len; 3847 count -= len; 3848 } 3849 3850 kref_put(&dump->kref, ipr_release_dump); 3851 return rc; 3852} 3853 3854/** 3855 * ipr_alloc_dump - Prepare for adapter dump 3856 * @ioa_cfg: ioa config struct 3857 * 3858 * Return value: 3859 * 0 on success / other on failure 3860 **/ 3861static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3862{ 3863 struct ipr_dump *dump; 3864 unsigned long lock_flags = 0; 3865 3866 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3867 3868 if (!dump) { 3869 ipr_err("Dump memory allocation failed\n"); 3870 return -ENOMEM; 3871 } 3872 3873 kref_init(&dump->kref); 3874 dump->ioa_cfg = ioa_cfg; 3875 3876 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3877 3878 if (INACTIVE != ioa_cfg->sdt_state) { 3879 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3880 kfree(dump); 3881 return 0; 3882 } 3883 3884 ioa_cfg->dump = dump; 3885 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3886 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3887 ioa_cfg->dump_taken = 1; 3888 schedule_work(&ioa_cfg->work_q); 3889 } 3890 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3891 3892 return 0; 3893} 3894 3895/** 3896 * ipr_free_dump - Free adapter dump memory 3897 * @ioa_cfg: ioa config struct 3898 * 3899 * Return value: 3900 * 0 on success / other on failure 3901 **/ 3902static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3903{ 3904 struct ipr_dump *dump; 3905 unsigned long lock_flags = 0; 3906 3907 ENTER; 3908 3909 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3910 dump = ioa_cfg->dump; 3911 if (!dump) { 3912 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3913 return 0; 3914 } 3915 3916 ioa_cfg->dump = NULL; 3917 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3918 3919 kref_put(&dump->kref, ipr_release_dump); 3920 3921 LEAVE; 3922 return 0; 3923} 3924 3925/** 3926 * ipr_write_dump - Setup dump state of adapter 3927 * @kobj: kobject struct 3928 * @bin_attr: bin_attribute struct 3929 * @buf: buffer 3930 * @off: offset 3931 * @count: buffer size 3932 * 3933 * Return value: 3934 * number of bytes printed to buffer 3935 **/ 3936static ssize_t ipr_write_dump(struct kobject *kobj, 3937 struct bin_attribute *bin_attr, 3938 char *buf, loff_t off, size_t count) 3939{ 3940 struct device *cdev = container_of(kobj, struct device, kobj); 3941 struct Scsi_Host *shost = class_to_shost(cdev); 3942 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3943 int rc; 3944 3945 if (!capable(CAP_SYS_ADMIN)) 3946 return -EACCES; 3947 3948 if (buf[0] == '1') 3949 rc = ipr_alloc_dump(ioa_cfg); 3950 else if (buf[0] == '0') 3951 rc = ipr_free_dump(ioa_cfg); 3952 else 3953 return -EINVAL; 3954 3955 if (rc) 3956 return rc; 3957 else 3958 return count; 3959} 3960 3961static struct bin_attribute ipr_dump_attr = { 3962 .attr = { 3963 .name = "dump", 3964 .mode = S_IRUSR | S_IWUSR, 3965 }, 3966 .size = 0, 3967 .read = ipr_read_dump, 3968 .write = ipr_write_dump 3969}; 3970#else 3971static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3972#endif 3973 3974/** 3975 * ipr_change_queue_depth - Change the device's queue depth 3976 * @sdev: scsi device struct 3977 * @qdepth: depth to set 3978 * @reason: calling context 3979 * 3980 * Return value: 3981 * actual depth set 3982 **/ 3983static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, 3984 int reason) 3985{ 3986 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3987 struct ipr_resource_entry *res; 3988 unsigned long lock_flags = 0; 3989 3990 if (reason != SCSI_QDEPTH_DEFAULT) 3991 return -EOPNOTSUPP; 3992 3993 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3994 res = (struct ipr_resource_entry *)sdev->hostdata; 3995 3996 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 3997 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 3998 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3999 4000 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 4001 return sdev->queue_depth; 4002} 4003 4004/** 4005 * ipr_change_queue_type - Change the device's queue type 4006 * @dsev: scsi device struct 4007 * @tag_type: type of tags to use 4008 * 4009 * Return value: 4010 * actual queue type set 4011 **/ 4012static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 4013{ 4014 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4015 struct ipr_resource_entry *res; 4016 unsigned long lock_flags = 0; 4017 4018 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4019 res = (struct ipr_resource_entry *)sdev->hostdata; 4020 4021 if (res) { 4022 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 4023 /* 4024 * We don't bother quiescing the device here since the 4025 * adapter firmware does it for us. 4026 */ 4027 scsi_set_tag_type(sdev, tag_type); 4028 4029 if (tag_type) 4030 scsi_activate_tcq(sdev, sdev->queue_depth); 4031 else 4032 scsi_deactivate_tcq(sdev, sdev->queue_depth); 4033 } else 4034 tag_type = 0; 4035 } else 4036 tag_type = 0; 4037 4038 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4039 return tag_type; 4040} 4041 4042/** 4043 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4044 * @dev: device struct 4045 * @buf: buffer 4046 * 4047 * Return value: 4048 * number of bytes printed to buffer 4049 **/ 4050static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4051{ 4052 struct scsi_device *sdev = to_scsi_device(dev); 4053 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4054 struct ipr_resource_entry *res; 4055 unsigned long lock_flags = 0; 4056 ssize_t len = -ENXIO; 4057 4058 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4059 res = (struct ipr_resource_entry *)sdev->hostdata; 4060 if (res) 4061 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4062 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4063 return len; 4064} 4065 4066static struct device_attribute ipr_adapter_handle_attr = { 4067 .attr = { 4068 .name = "adapter_handle", 4069 .mode = S_IRUSR, 4070 }, 4071 .show = ipr_show_adapter_handle 4072}; 4073 4074/** 4075 * ipr_show_resource_path - Show the resource path for this device. 4076 * @dev: device struct 4077 * @buf: buffer 4078 * 4079 * Return value: 4080 * number of bytes printed to buffer 4081 **/ 4082static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4083{ 4084 struct scsi_device *sdev = to_scsi_device(dev); 4085 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4086 struct ipr_resource_entry *res; 4087 unsigned long lock_flags = 0; 4088 ssize_t len = -ENXIO; 4089 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4090 4091 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4092 res = (struct ipr_resource_entry *)sdev->hostdata; 4093 if (res) 4094 len = snprintf(buf, PAGE_SIZE, "%s\n", 4095 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 4096 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4097 return len; 4098} 4099 4100static struct device_attribute ipr_resource_path_attr = { 4101 .attr = { 4102 .name = "resource_path", 4103 .mode = S_IRUSR, 4104 }, 4105 .show = ipr_show_resource_path 4106}; 4107 4108static struct device_attribute *ipr_dev_attrs[] = { 4109 &ipr_adapter_handle_attr, 4110 &ipr_resource_path_attr, 4111 NULL, 4112}; 4113 4114/** 4115 * ipr_biosparam - Return the HSC mapping 4116 * @sdev: scsi device struct 4117 * @block_device: block device pointer 4118 * @capacity: capacity of the device 4119 * @parm: Array containing returned HSC values. 4120 * 4121 * This function generates the HSC parms that fdisk uses. 4122 * We want to make sure we return something that places partitions 4123 * on 4k boundaries for best performance with the IOA. 4124 * 4125 * Return value: 4126 * 0 on success 4127 **/ 4128static int ipr_biosparam(struct scsi_device *sdev, 4129 struct block_device *block_device, 4130 sector_t capacity, int *parm) 4131{ 4132 int heads, sectors; 4133 sector_t cylinders; 4134 4135 heads = 128; 4136 sectors = 32; 4137 4138 cylinders = capacity; 4139 sector_div(cylinders, (128 * 32)); 4140 4141 /* return result */ 4142 parm[0] = heads; 4143 parm[1] = sectors; 4144 parm[2] = cylinders; 4145 4146 return 0; 4147} 4148 4149/** 4150 * ipr_find_starget - Find target based on bus/target. 4151 * @starget: scsi target struct 4152 * 4153 * Return value: 4154 * resource entry pointer if found / NULL if not found 4155 **/ 4156static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4157{ 4158 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4159 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4160 struct ipr_resource_entry *res; 4161 4162 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4163 if ((res->bus == starget->channel) && 4164 (res->target == starget->id) && 4165 (res->lun == 0)) { 4166 return res; 4167 } 4168 } 4169 4170 return NULL; 4171} 4172 4173static struct ata_port_info sata_port_info; 4174 4175/** 4176 * ipr_target_alloc - Prepare for commands to a SCSI target 4177 * @starget: scsi target struct 4178 * 4179 * If the device is a SATA device, this function allocates an 4180 * ATA port with libata, else it does nothing. 4181 * 4182 * Return value: 4183 * 0 on success / non-0 on failure 4184 **/ 4185static int ipr_target_alloc(struct scsi_target *starget) 4186{ 4187 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4188 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4189 struct ipr_sata_port *sata_port; 4190 struct ata_port *ap; 4191 struct ipr_resource_entry *res; 4192 unsigned long lock_flags; 4193 4194 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4195 res = ipr_find_starget(starget); 4196 starget->hostdata = NULL; 4197 4198 if (res && ipr_is_gata(res)) { 4199 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4200 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4201 if (!sata_port) 4202 return -ENOMEM; 4203 4204 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4205 if (ap) { 4206 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4207 sata_port->ioa_cfg = ioa_cfg; 4208 sata_port->ap = ap; 4209 sata_port->res = res; 4210 4211 res->sata_port = sata_port; 4212 ap->private_data = sata_port; 4213 starget->hostdata = sata_port; 4214 } else { 4215 kfree(sata_port); 4216 return -ENOMEM; 4217 } 4218 } 4219 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4220 4221 return 0; 4222} 4223 4224/** 4225 * ipr_target_destroy - Destroy a SCSI target 4226 * @starget: scsi target struct 4227 * 4228 * If the device was a SATA device, this function frees the libata 4229 * ATA port, else it does nothing. 4230 * 4231 **/ 4232static void ipr_target_destroy(struct scsi_target *starget) 4233{ 4234 struct ipr_sata_port *sata_port = starget->hostdata; 4235 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4236 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4237 4238 if (ioa_cfg->sis64) { 4239 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4240 clear_bit(starget->id, ioa_cfg->array_ids); 4241 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4242 clear_bit(starget->id, ioa_cfg->vset_ids); 4243 else if (starget->channel == 0) 4244 clear_bit(starget->id, ioa_cfg->target_ids); 4245 } 4246 4247 if (sata_port) { 4248 starget->hostdata = NULL; 4249 ata_sas_port_destroy(sata_port->ap); 4250 kfree(sata_port); 4251 } 4252} 4253 4254/** 4255 * ipr_find_sdev - Find device based on bus/target/lun. 4256 * @sdev: scsi device struct 4257 * 4258 * Return value: 4259 * resource entry pointer if found / NULL if not found 4260 **/ 4261static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4262{ 4263 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4264 struct ipr_resource_entry *res; 4265 4266 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4267 if ((res->bus == sdev->channel) && 4268 (res->target == sdev->id) && 4269 (res->lun == sdev->lun)) 4270 return res; 4271 } 4272 4273 return NULL; 4274} 4275 4276/** 4277 * ipr_slave_destroy - Unconfigure a SCSI device 4278 * @sdev: scsi device struct 4279 * 4280 * Return value: 4281 * nothing 4282 **/ 4283static void ipr_slave_destroy(struct scsi_device *sdev) 4284{ 4285 struct ipr_resource_entry *res; 4286 struct ipr_ioa_cfg *ioa_cfg; 4287 unsigned long lock_flags = 0; 4288 4289 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4290 4291 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4292 res = (struct ipr_resource_entry *) sdev->hostdata; 4293 if (res) { 4294 if (res->sata_port) 4295 ata_port_disable(res->sata_port->ap); 4296 sdev->hostdata = NULL; 4297 res->sdev = NULL; 4298 res->sata_port = NULL; 4299 } 4300 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4301} 4302 4303/** 4304 * ipr_slave_configure - Configure a SCSI device 4305 * @sdev: scsi device struct 4306 * 4307 * This function configures the specified scsi device. 4308 * 4309 * Return value: 4310 * 0 on success 4311 **/ 4312static int ipr_slave_configure(struct scsi_device *sdev) 4313{ 4314 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4315 struct ipr_resource_entry *res; 4316 struct ata_port *ap = NULL; 4317 unsigned long lock_flags = 0; 4318 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4319 4320 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4321 res = sdev->hostdata; 4322 if (res) { 4323 if (ipr_is_af_dasd_device(res)) 4324 sdev->type = TYPE_RAID; 4325 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4326 sdev->scsi_level = 4; 4327 sdev->no_uld_attach = 1; 4328 } 4329 if (ipr_is_vset_device(res)) { 4330 blk_queue_rq_timeout(sdev->request_queue, 4331 IPR_VSET_RW_TIMEOUT); 4332 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4333 } 4334 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 4335 sdev->allow_restart = 1; 4336 if (ipr_is_gata(res) && res->sata_port) 4337 ap = res->sata_port->ap; 4338 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4339 4340 if (ap) { 4341 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 4342 ata_sas_slave_configure(sdev, ap); 4343 } else 4344 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 4345 if (ioa_cfg->sis64) 4346 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4347 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 4348 return 0; 4349 } 4350 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4351 return 0; 4352} 4353 4354/** 4355 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4356 * @sdev: scsi device struct 4357 * 4358 * This function initializes an ATA port so that future commands 4359 * sent through queuecommand will work. 4360 * 4361 * Return value: 4362 * 0 on success 4363 **/ 4364static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4365{ 4366 struct ipr_sata_port *sata_port = NULL; 4367 int rc = -ENXIO; 4368 4369 ENTER; 4370 if (sdev->sdev_target) 4371 sata_port = sdev->sdev_target->hostdata; 4372 if (sata_port) 4373 rc = ata_sas_port_init(sata_port->ap); 4374 if (rc) 4375 ipr_slave_destroy(sdev); 4376 4377 LEAVE; 4378 return rc; 4379} 4380 4381/** 4382 * ipr_slave_alloc - Prepare for commands to a device. 4383 * @sdev: scsi device struct 4384 * 4385 * This function saves a pointer to the resource entry 4386 * in the scsi device struct if the device exists. We 4387 * can then use this pointer in ipr_queuecommand when 4388 * handling new commands. 4389 * 4390 * Return value: 4391 * 0 on success / -ENXIO if device does not exist 4392 **/ 4393static int ipr_slave_alloc(struct scsi_device *sdev) 4394{ 4395 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4396 struct ipr_resource_entry *res; 4397 unsigned long lock_flags; 4398 int rc = -ENXIO; 4399 4400 sdev->hostdata = NULL; 4401 4402 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4403 4404 res = ipr_find_sdev(sdev); 4405 if (res) { 4406 res->sdev = sdev; 4407 res->add_to_ml = 0; 4408 res->in_erp = 0; 4409 sdev->hostdata = res; 4410 if (!ipr_is_naca_model(res)) 4411 res->needs_sync_complete = 1; 4412 rc = 0; 4413 if (ipr_is_gata(res)) { 4414 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4415 return ipr_ata_slave_alloc(sdev); 4416 } 4417 } 4418 4419 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4420 4421 return rc; 4422} 4423 4424/** 4425 * ipr_eh_host_reset - Reset the host adapter 4426 * @scsi_cmd: scsi command struct 4427 * 4428 * Return value: 4429 * SUCCESS / FAILED 4430 **/ 4431static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 4432{ 4433 struct ipr_ioa_cfg *ioa_cfg; 4434 int rc; 4435 4436 ENTER; 4437 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4438 4439 dev_err(&ioa_cfg->pdev->dev, 4440 "Adapter being reset as a result of error recovery.\n"); 4441 4442 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4443 ioa_cfg->sdt_state = GET_DUMP; 4444 4445 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 4446 4447 LEAVE; 4448 return rc; 4449} 4450 4451static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 4452{ 4453 int rc; 4454 4455 spin_lock_irq(cmd->device->host->host_lock); 4456 rc = __ipr_eh_host_reset(cmd); 4457 spin_unlock_irq(cmd->device->host->host_lock); 4458 4459 return rc; 4460} 4461 4462/** 4463 * ipr_device_reset - Reset the device 4464 * @ioa_cfg: ioa config struct 4465 * @res: resource entry struct 4466 * 4467 * This function issues a device reset to the affected device. 4468 * If the device is a SCSI device, a LUN reset will be sent 4469 * to the device first. If that does not work, a target reset 4470 * will be sent. If the device is a SATA device, a PHY reset will 4471 * be sent. 4472 * 4473 * Return value: 4474 * 0 on success / non-zero on failure 4475 **/ 4476static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 4477 struct ipr_resource_entry *res) 4478{ 4479 struct ipr_cmnd *ipr_cmd; 4480 struct ipr_ioarcb *ioarcb; 4481 struct ipr_cmd_pkt *cmd_pkt; 4482 struct ipr_ioarcb_ata_regs *regs; 4483 u32 ioasc; 4484 4485 ENTER; 4486 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4487 ioarcb = &ipr_cmd->ioarcb; 4488 cmd_pkt = &ioarcb->cmd_pkt; 4489 4490 if (ipr_cmd->ioa_cfg->sis64) { 4491 regs = &ipr_cmd->i.ata_ioadl.regs; 4492 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 4493 } else 4494 regs = &ioarcb->u.add_data.u.regs; 4495 4496 ioarcb->res_handle = res->res_handle; 4497 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4498 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4499 if (ipr_is_gata(res)) { 4500 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 4501 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 4502 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 4503 } 4504 4505 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4506 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4507 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4508 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) 4509 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 4510 sizeof(struct ipr_ioasa_gata)); 4511 4512 LEAVE; 4513 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 4514} 4515 4516/** 4517 * ipr_sata_reset - Reset the SATA port 4518 * @link: SATA link to reset 4519 * @classes: class of the attached device 4520 * 4521 * This function issues a SATA phy reset to the affected ATA link. 4522 * 4523 * Return value: 4524 * 0 on success / non-zero on failure 4525 **/ 4526static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 4527 unsigned long deadline) 4528{ 4529 struct ipr_sata_port *sata_port = link->ap->private_data; 4530 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4531 struct ipr_resource_entry *res; 4532 unsigned long lock_flags = 0; 4533 int rc = -ENXIO; 4534 4535 ENTER; 4536 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4537 while(ioa_cfg->in_reset_reload) { 4538 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4539 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4540 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4541 } 4542 4543 res = sata_port->res; 4544 if (res) { 4545 rc = ipr_device_reset(ioa_cfg, res); 4546 *classes = res->ata_class; 4547 } 4548 4549 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4550 LEAVE; 4551 return rc; 4552} 4553 4554/** 4555 * ipr_eh_dev_reset - Reset the device 4556 * @scsi_cmd: scsi command struct 4557 * 4558 * This function issues a device reset to the affected device. 4559 * A LUN reset will be sent to the device first. If that does 4560 * not work, a target reset will be sent. 4561 * 4562 * Return value: 4563 * SUCCESS / FAILED 4564 **/ 4565static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 4566{ 4567 struct ipr_cmnd *ipr_cmd; 4568 struct ipr_ioa_cfg *ioa_cfg; 4569 struct ipr_resource_entry *res; 4570 struct ata_port *ap; 4571 int rc = 0; 4572 4573 ENTER; 4574 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4575 res = scsi_cmd->device->hostdata; 4576 4577 if (!res) 4578 return FAILED; 4579 4580 /* 4581 * If we are currently going through reset/reload, return failed. This will force the 4582 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 4583 * reset to complete 4584 */ 4585 if (ioa_cfg->in_reset_reload) 4586 return FAILED; 4587 if (ioa_cfg->ioa_is_dead) 4588 return FAILED; 4589 4590 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4591 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4592 if (ipr_cmd->scsi_cmd) 4593 ipr_cmd->done = ipr_scsi_eh_done; 4594 if (ipr_cmd->qc) 4595 ipr_cmd->done = ipr_sata_eh_done; 4596 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 4597 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 4598 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 4599 } 4600 } 4601 } 4602 4603 res->resetting_device = 1; 4604 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 4605 4606 if (ipr_is_gata(res) && res->sata_port) { 4607 ap = res->sata_port->ap; 4608 spin_unlock_irq(scsi_cmd->device->host->host_lock); 4609 ata_std_error_handler(ap); 4610 spin_lock_irq(scsi_cmd->device->host->host_lock); 4611 4612 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4613 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4614 rc = -EIO; 4615 break; 4616 } 4617 } 4618 } else 4619 rc = ipr_device_reset(ioa_cfg, res); 4620 res->resetting_device = 0; 4621 4622 LEAVE; 4623 return (rc ? FAILED : SUCCESS); 4624} 4625 4626static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 4627{ 4628 int rc; 4629 4630 spin_lock_irq(cmd->device->host->host_lock); 4631 rc = __ipr_eh_dev_reset(cmd); 4632 spin_unlock_irq(cmd->device->host->host_lock); 4633 4634 return rc; 4635} 4636 4637/** 4638 * ipr_bus_reset_done - Op done function for bus reset. 4639 * @ipr_cmd: ipr command struct 4640 * 4641 * This function is the op done function for a bus reset 4642 * 4643 * Return value: 4644 * none 4645 **/ 4646static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 4647{ 4648 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4649 struct ipr_resource_entry *res; 4650 4651 ENTER; 4652 if (!ioa_cfg->sis64) 4653 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4654 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 4655 scsi_report_bus_reset(ioa_cfg->host, res->bus); 4656 break; 4657 } 4658 } 4659 4660 /* 4661 * If abort has not completed, indicate the reset has, else call the 4662 * abort's done function to wake the sleeping eh thread 4663 */ 4664 if (ipr_cmd->sibling->sibling) 4665 ipr_cmd->sibling->sibling = NULL; 4666 else 4667 ipr_cmd->sibling->done(ipr_cmd->sibling); 4668 4669 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4670 LEAVE; 4671} 4672 4673/** 4674 * ipr_abort_timeout - An abort task has timed out 4675 * @ipr_cmd: ipr command struct 4676 * 4677 * This function handles when an abort task times out. If this 4678 * happens we issue a bus reset since we have resources tied 4679 * up that must be freed before returning to the midlayer. 4680 * 4681 * Return value: 4682 * none 4683 **/ 4684static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4685{ 4686 struct ipr_cmnd *reset_cmd; 4687 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4688 struct ipr_cmd_pkt *cmd_pkt; 4689 unsigned long lock_flags = 0; 4690 4691 ENTER; 4692 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4693 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4694 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4695 return; 4696 } 4697 4698 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4699 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4700 ipr_cmd->sibling = reset_cmd; 4701 reset_cmd->sibling = ipr_cmd; 4702 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4703 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4704 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4705 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4706 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4707 4708 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4709 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4710 LEAVE; 4711} 4712 4713/** 4714 * ipr_cancel_op - Cancel specified op 4715 * @scsi_cmd: scsi command struct 4716 * 4717 * This function cancels specified op. 4718 * 4719 * Return value: 4720 * SUCCESS / FAILED 4721 **/ 4722static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4723{ 4724 struct ipr_cmnd *ipr_cmd; 4725 struct ipr_ioa_cfg *ioa_cfg; 4726 struct ipr_resource_entry *res; 4727 struct ipr_cmd_pkt *cmd_pkt; 4728 u32 ioasc; 4729 int op_found = 0; 4730 4731 ENTER; 4732 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4733 res = scsi_cmd->device->hostdata; 4734 4735 /* If we are currently going through reset/reload, return failed. 4736 * This will force the mid-layer to call ipr_eh_host_reset, 4737 * which will then go to sleep and wait for the reset to complete 4738 */ 4739 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4740 return FAILED; 4741 if (!res || !ipr_is_gscsi(res)) 4742 return FAILED; 4743 4744 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4745 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4746 ipr_cmd->done = ipr_scsi_eh_done; 4747 op_found = 1; 4748 break; 4749 } 4750 } 4751 4752 if (!op_found) 4753 return SUCCESS; 4754 4755 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4756 ipr_cmd->ioarcb.res_handle = res->res_handle; 4757 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4758 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4759 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4760 ipr_cmd->u.sdev = scsi_cmd->device; 4761 4762 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4763 scsi_cmd->cmnd[0]); 4764 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4765 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4766 4767 /* 4768 * If the abort task timed out and we sent a bus reset, we will get 4769 * one the following responses to the abort 4770 */ 4771 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4772 ioasc = 0; 4773 ipr_trace; 4774 } 4775 4776 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4777 if (!ipr_is_naca_model(res)) 4778 res->needs_sync_complete = 1; 4779 4780 LEAVE; 4781 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4782} 4783 4784/** 4785 * ipr_eh_abort - Abort a single op 4786 * @scsi_cmd: scsi command struct 4787 * 4788 * Return value: 4789 * SUCCESS / FAILED 4790 **/ 4791static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4792{ 4793 unsigned long flags; 4794 int rc; 4795 4796 ENTER; 4797 4798 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4799 rc = ipr_cancel_op(scsi_cmd); 4800 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4801 4802 LEAVE; 4803 return rc; 4804} 4805 4806/** 4807 * ipr_handle_other_interrupt - Handle "other" interrupts 4808 * @ioa_cfg: ioa config struct 4809 * @int_reg: interrupt register 4810 * 4811 * Return value: 4812 * IRQ_NONE / IRQ_HANDLED 4813 **/ 4814static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4815 volatile u32 int_reg) 4816{ 4817 irqreturn_t rc = IRQ_HANDLED; 4818 4819 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4820 /* Mask the interrupt */ 4821 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4822 4823 /* Clear the interrupt */ 4824 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4825 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4826 4827 list_del(&ioa_cfg->reset_cmd->queue); 4828 del_timer(&ioa_cfg->reset_cmd->timer); 4829 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4830 } else { 4831 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4832 ioa_cfg->ioa_unit_checked = 1; 4833 else 4834 dev_err(&ioa_cfg->pdev->dev, 4835 "Permanent IOA failure. 0x%08X\n", int_reg); 4836 4837 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4838 ioa_cfg->sdt_state = GET_DUMP; 4839 4840 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4841 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4842 } 4843 4844 return rc; 4845} 4846 4847/** 4848 * ipr_isr_eh - Interrupt service routine error handler 4849 * @ioa_cfg: ioa config struct 4850 * @msg: message to log 4851 * 4852 * Return value: 4853 * none 4854 **/ 4855static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) 4856{ 4857 ioa_cfg->errors_logged++; 4858 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); 4859 4860 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4861 ioa_cfg->sdt_state = GET_DUMP; 4862 4863 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4864} 4865 4866/** 4867 * ipr_isr - Interrupt service routine 4868 * @irq: irq number 4869 * @devp: pointer to ioa config struct 4870 * 4871 * Return value: 4872 * IRQ_NONE / IRQ_HANDLED 4873 **/ 4874static irqreturn_t ipr_isr(int irq, void *devp) 4875{ 4876 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4877 unsigned long lock_flags = 0; 4878 volatile u32 int_reg, int_mask_reg; 4879 u32 ioasc; 4880 u16 cmd_index; 4881 int num_hrrq = 0; 4882 struct ipr_cmnd *ipr_cmd; 4883 irqreturn_t rc = IRQ_NONE; 4884 4885 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4886 4887 /* If interrupts are disabled, ignore the interrupt */ 4888 if (!ioa_cfg->allow_interrupts) { 4889 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4890 return IRQ_NONE; 4891 } 4892 4893 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 4894 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 4895 4896 /* If an interrupt on the adapter did not occur, ignore it. 4897 * Or in the case of SIS 64, check for a stage change interrupt. 4898 */ 4899 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4900 if (ioa_cfg->sis64) { 4901 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4902 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4903 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 4904 4905 /* clear stage change */ 4906 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 4907 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4908 list_del(&ioa_cfg->reset_cmd->queue); 4909 del_timer(&ioa_cfg->reset_cmd->timer); 4910 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4911 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4912 return IRQ_HANDLED; 4913 } 4914 } 4915 4916 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4917 return IRQ_NONE; 4918 } 4919 4920 while (1) { 4921 ipr_cmd = NULL; 4922 4923 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4924 ioa_cfg->toggle_bit) { 4925 4926 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4927 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4928 4929 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4930 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); 4931 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4932 return IRQ_HANDLED; 4933 } 4934 4935 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4936 4937 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4938 4939 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4940 4941 list_del(&ipr_cmd->queue); 4942 del_timer(&ipr_cmd->timer); 4943 ipr_cmd->done(ipr_cmd); 4944 4945 rc = IRQ_HANDLED; 4946 4947 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4948 ioa_cfg->hrrq_curr++; 4949 } else { 4950 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4951 ioa_cfg->toggle_bit ^= 1u; 4952 } 4953 } 4954 4955 if (ipr_cmd != NULL) { 4956 /* Clear the PCI interrupt */ 4957 do { 4958 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 4959 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 4960 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 4961 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 4962 4963 if (int_reg & IPR_PCII_HRRQ_UPDATED) { 4964 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); 4965 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4966 return IRQ_HANDLED; 4967 } 4968 4969 } else 4970 break; 4971 } 4972 4973 if (unlikely(rc == IRQ_NONE)) 4974 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4975 4976 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4977 return rc; 4978} 4979 4980/** 4981 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 4982 * @ioa_cfg: ioa config struct 4983 * @ipr_cmd: ipr command struct 4984 * 4985 * Return value: 4986 * 0 on success / -1 on failure 4987 **/ 4988static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 4989 struct ipr_cmnd *ipr_cmd) 4990{ 4991 int i, nseg; 4992 struct scatterlist *sg; 4993 u32 length; 4994 u32 ioadl_flags = 0; 4995 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 4996 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 4997 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 4998 4999 length = scsi_bufflen(scsi_cmd); 5000 if (!length) 5001 return 0; 5002 5003 nseg = scsi_dma_map(scsi_cmd); 5004 if (nseg < 0) { 5005 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5006 return -1; 5007 } 5008 5009 ipr_cmd->dma_use_sg = nseg; 5010 5011 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5012 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5013 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5014 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5015 ioadl_flags = IPR_IOADL_FLAGS_READ; 5016 5017 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5018 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5019 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5020 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5021 } 5022 5023 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5024 return 0; 5025} 5026 5027/** 5028 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5029 * @ioa_cfg: ioa config struct 5030 * @ipr_cmd: ipr command struct 5031 * 5032 * Return value: 5033 * 0 on success / -1 on failure 5034 **/ 5035static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5036 struct ipr_cmnd *ipr_cmd) 5037{ 5038 int i, nseg; 5039 struct scatterlist *sg; 5040 u32 length; 5041 u32 ioadl_flags = 0; 5042 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5043 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5044 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5045 5046 length = scsi_bufflen(scsi_cmd); 5047 if (!length) 5048 return 0; 5049 5050 nseg = scsi_dma_map(scsi_cmd); 5051 if (nseg < 0) { 5052 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5053 return -1; 5054 } 5055 5056 ipr_cmd->dma_use_sg = nseg; 5057 5058 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5059 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5060 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5061 ioarcb->data_transfer_length = cpu_to_be32(length); 5062 ioarcb->ioadl_len = 5063 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5064 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5065 ioadl_flags = IPR_IOADL_FLAGS_READ; 5066 ioarcb->read_data_transfer_length = cpu_to_be32(length); 5067 ioarcb->read_ioadl_len = 5068 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5069 } 5070 5071 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 5072 ioadl = ioarcb->u.add_data.u.ioadl; 5073 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 5074 offsetof(struct ipr_ioarcb, u.add_data)); 5075 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5076 } 5077 5078 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5079 ioadl[i].flags_and_data_len = 5080 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5081 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 5082 } 5083 5084 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5085 return 0; 5086} 5087 5088/** 5089 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 5090 * @scsi_cmd: scsi command struct 5091 * 5092 * Return value: 5093 * task attributes 5094 **/ 5095static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 5096{ 5097 u8 tag[2]; 5098 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 5099 5100 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 5101 switch (tag[0]) { 5102 case MSG_SIMPLE_TAG: 5103 rc = IPR_FLAGS_LO_SIMPLE_TASK; 5104 break; 5105 case MSG_HEAD_TAG: 5106 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 5107 break; 5108 case MSG_ORDERED_TAG: 5109 rc = IPR_FLAGS_LO_ORDERED_TASK; 5110 break; 5111 }; 5112 } 5113 5114 return rc; 5115} 5116 5117/** 5118 * ipr_erp_done - Process completion of ERP for a device 5119 * @ipr_cmd: ipr command struct 5120 * 5121 * This function copies the sense buffer into the scsi_cmd 5122 * struct and pushes the scsi_done function. 5123 * 5124 * Return value: 5125 * nothing 5126 **/ 5127static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 5128{ 5129 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5130 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5131 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5132 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5133 5134 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5135 scsi_cmd->result |= (DID_ERROR << 16); 5136 scmd_printk(KERN_ERR, scsi_cmd, 5137 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 5138 } else { 5139 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 5140 SCSI_SENSE_BUFFERSIZE); 5141 } 5142 5143 if (res) { 5144 if (!ipr_is_naca_model(res)) 5145 res->needs_sync_complete = 1; 5146 res->in_erp = 0; 5147 } 5148 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5149 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5150 scsi_cmd->scsi_done(scsi_cmd); 5151} 5152 5153/** 5154 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 5155 * @ipr_cmd: ipr command struct 5156 * 5157 * Return value: 5158 * none 5159 **/ 5160static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 5161{ 5162 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5163 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5164 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5165 5166 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 5167 ioarcb->data_transfer_length = 0; 5168 ioarcb->read_data_transfer_length = 0; 5169 ioarcb->ioadl_len = 0; 5170 ioarcb->read_ioadl_len = 0; 5171 ioasa->ioasc = 0; 5172 ioasa->residual_data_len = 0; 5173 5174 if (ipr_cmd->ioa_cfg->sis64) 5175 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5176 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 5177 else { 5178 ioarcb->write_ioadl_addr = 5179 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 5180 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5181 } 5182} 5183 5184/** 5185 * ipr_erp_request_sense - Send request sense to a device 5186 * @ipr_cmd: ipr command struct 5187 * 5188 * This function sends a request sense to a device as a result 5189 * of a check condition. 5190 * 5191 * Return value: 5192 * nothing 5193 **/ 5194static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 5195{ 5196 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5197 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5198 5199 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5200 ipr_erp_done(ipr_cmd); 5201 return; 5202 } 5203 5204 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5205 5206 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 5207 cmd_pkt->cdb[0] = REQUEST_SENSE; 5208 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 5209 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 5210 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5211 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 5212 5213 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 5214 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 5215 5216 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 5217 IPR_REQUEST_SENSE_TIMEOUT * 2); 5218} 5219 5220/** 5221 * ipr_erp_cancel_all - Send cancel all to a device 5222 * @ipr_cmd: ipr command struct 5223 * 5224 * This function sends a cancel all to a device to clear the 5225 * queue. If we are running TCQ on the device, QERR is set to 1, 5226 * which means all outstanding ops have been dropped on the floor. 5227 * Cancel all will return them to us. 5228 * 5229 * Return value: 5230 * nothing 5231 **/ 5232static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 5233{ 5234 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5235 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5236 struct ipr_cmd_pkt *cmd_pkt; 5237 5238 res->in_erp = 1; 5239 5240 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5241 5242 if (!scsi_get_tag_type(scsi_cmd->device)) { 5243 ipr_erp_request_sense(ipr_cmd); 5244 return; 5245 } 5246 5247 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5248 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5249 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5250 5251 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 5252 IPR_CANCEL_ALL_TIMEOUT); 5253} 5254 5255/** 5256 * ipr_dump_ioasa - Dump contents of IOASA 5257 * @ioa_cfg: ioa config struct 5258 * @ipr_cmd: ipr command struct 5259 * @res: resource entry struct 5260 * 5261 * This function is invoked by the interrupt handler when ops 5262 * fail. It will log the IOASA if appropriate. Only called 5263 * for GPDD ops. 5264 * 5265 * Return value: 5266 * none 5267 **/ 5268static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 5269 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 5270{ 5271 int i; 5272 u16 data_len; 5273 u32 ioasc, fd_ioasc; 5274 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5275 __be32 *ioasa_data = (__be32 *)ioasa; 5276 int error_index; 5277 5278 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; 5279 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; 5280 5281 if (0 == ioasc) 5282 return; 5283 5284 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 5285 return; 5286 5287 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 5288 error_index = ipr_get_error(fd_ioasc); 5289 else 5290 error_index = ipr_get_error(ioasc); 5291 5292 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 5293 /* Don't log an error if the IOA already logged one */ 5294 if (ioasa->ilid != 0) 5295 return; 5296 5297 if (!ipr_is_gscsi(res)) 5298 return; 5299 5300 if (ipr_error_table[error_index].log_ioasa == 0) 5301 return; 5302 } 5303 5304 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 5305 5306 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) 5307 data_len = sizeof(struct ipr_ioasa); 5308 else 5309 data_len = be16_to_cpu(ioasa->ret_stat_len); 5310 5311 ipr_err("IOASA Dump:\n"); 5312 5313 for (i = 0; i < data_len / 4; i += 4) { 5314 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 5315 be32_to_cpu(ioasa_data[i]), 5316 be32_to_cpu(ioasa_data[i+1]), 5317 be32_to_cpu(ioasa_data[i+2]), 5318 be32_to_cpu(ioasa_data[i+3])); 5319 } 5320} 5321 5322/** 5323 * ipr_gen_sense - Generate SCSI sense data from an IOASA 5324 * @ioasa: IOASA 5325 * @sense_buf: sense data buffer 5326 * 5327 * Return value: 5328 * none 5329 **/ 5330static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 5331{ 5332 u32 failing_lba; 5333 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 5334 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 5335 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5336 u32 ioasc = be32_to_cpu(ioasa->ioasc); 5337 5338 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 5339 5340 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 5341 return; 5342 5343 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 5344 5345 if (ipr_is_vset_device(res) && 5346 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 5347 ioasa->u.vset.failing_lba_hi != 0) { 5348 sense_buf[0] = 0x72; 5349 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 5350 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 5351 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 5352 5353 sense_buf[7] = 12; 5354 sense_buf[8] = 0; 5355 sense_buf[9] = 0x0A; 5356 sense_buf[10] = 0x80; 5357 5358 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 5359 5360 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 5361 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 5362 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 5363 sense_buf[15] = failing_lba & 0x000000ff; 5364 5365 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5366 5367 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 5368 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 5369 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 5370 sense_buf[19] = failing_lba & 0x000000ff; 5371 } else { 5372 sense_buf[0] = 0x70; 5373 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 5374 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 5375 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 5376 5377 /* Illegal request */ 5378 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 5379 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 5380 sense_buf[7] = 10; /* additional length */ 5381 5382 /* IOARCB was in error */ 5383 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 5384 sense_buf[15] = 0xC0; 5385 else /* Parameter data was invalid */ 5386 sense_buf[15] = 0x80; 5387 5388 sense_buf[16] = 5389 ((IPR_FIELD_POINTER_MASK & 5390 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; 5391 sense_buf[17] = 5392 (IPR_FIELD_POINTER_MASK & 5393 be32_to_cpu(ioasa->ioasc_specific)) & 0xff; 5394 } else { 5395 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 5396 if (ipr_is_vset_device(res)) 5397 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5398 else 5399 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 5400 5401 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 5402 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 5403 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 5404 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 5405 sense_buf[6] = failing_lba & 0x000000ff; 5406 } 5407 5408 sense_buf[7] = 6; /* additional length */ 5409 } 5410 } 5411} 5412 5413/** 5414 * ipr_get_autosense - Copy autosense data to sense buffer 5415 * @ipr_cmd: ipr command struct 5416 * 5417 * This function copies the autosense buffer to the buffer 5418 * in the scsi_cmd, if there is autosense available. 5419 * 5420 * Return value: 5421 * 1 if autosense was available / 0 if not 5422 **/ 5423static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 5424{ 5425 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5426 5427 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 5428 return 0; 5429 5430 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 5431 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 5432 SCSI_SENSE_BUFFERSIZE)); 5433 return 1; 5434} 5435 5436/** 5437 * ipr_erp_start - Process an error response for a SCSI op 5438 * @ioa_cfg: ioa config struct 5439 * @ipr_cmd: ipr command struct 5440 * 5441 * This function determines whether or not to initiate ERP 5442 * on the affected device. 5443 * 5444 * Return value: 5445 * nothing 5446 **/ 5447static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 5448 struct ipr_cmnd *ipr_cmd) 5449{ 5450 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5451 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5452 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5453 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 5454 5455 if (!res) { 5456 ipr_scsi_eh_done(ipr_cmd); 5457 return; 5458 } 5459 5460 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 5461 ipr_gen_sense(ipr_cmd); 5462 5463 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5464 5465 switch (masked_ioasc) { 5466 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 5467 if (ipr_is_naca_model(res)) 5468 scsi_cmd->result |= (DID_ABORT << 16); 5469 else 5470 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5471 break; 5472 case IPR_IOASC_IR_RESOURCE_HANDLE: 5473 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 5474 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5475 break; 5476 case IPR_IOASC_HW_SEL_TIMEOUT: 5477 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5478 if (!ipr_is_naca_model(res)) 5479 res->needs_sync_complete = 1; 5480 break; 5481 case IPR_IOASC_SYNC_REQUIRED: 5482 if (!res->in_erp) 5483 res->needs_sync_complete = 1; 5484 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5485 break; 5486 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 5487 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 5488 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 5489 break; 5490 case IPR_IOASC_BUS_WAS_RESET: 5491 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 5492 /* 5493 * Report the bus reset and ask for a retry. The device 5494 * will give CC/UA the next command. 5495 */ 5496 if (!res->resetting_device) 5497 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 5498 scsi_cmd->result |= (DID_ERROR << 16); 5499 if (!ipr_is_naca_model(res)) 5500 res->needs_sync_complete = 1; 5501 break; 5502 case IPR_IOASC_HW_DEV_BUS_STATUS: 5503 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 5504 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 5505 if (!ipr_get_autosense(ipr_cmd)) { 5506 if (!ipr_is_naca_model(res)) { 5507 ipr_erp_cancel_all(ipr_cmd); 5508 return; 5509 } 5510 } 5511 } 5512 if (!ipr_is_naca_model(res)) 5513 res->needs_sync_complete = 1; 5514 break; 5515 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 5516 break; 5517 default: 5518 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5519 scsi_cmd->result |= (DID_ERROR << 16); 5520 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 5521 res->needs_sync_complete = 1; 5522 break; 5523 } 5524 5525 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5526 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5527 scsi_cmd->scsi_done(scsi_cmd); 5528} 5529 5530/** 5531 * ipr_scsi_done - mid-layer done function 5532 * @ipr_cmd: ipr command struct 5533 * 5534 * This function is invoked by the interrupt handler for 5535 * ops generated by the SCSI mid-layer 5536 * 5537 * Return value: 5538 * none 5539 **/ 5540static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 5541{ 5542 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5543 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5544 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5545 5546 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len)); 5547 5548 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 5549 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5550 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5551 scsi_cmd->scsi_done(scsi_cmd); 5552 } else 5553 ipr_erp_start(ioa_cfg, ipr_cmd); 5554} 5555 5556/** 5557 * ipr_queuecommand - Queue a mid-layer request 5558 * @scsi_cmd: scsi command struct 5559 * @done: done function 5560 * 5561 * This function queues a request generated by the mid-layer. 5562 * 5563 * Return value: 5564 * 0 on success 5565 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 5566 * SCSI_MLQUEUE_HOST_BUSY if host is busy 5567 **/ 5568static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 5569 void (*done) (struct scsi_cmnd *)) 5570{ 5571 struct ipr_ioa_cfg *ioa_cfg; 5572 struct ipr_resource_entry *res; 5573 struct ipr_ioarcb *ioarcb; 5574 struct ipr_cmnd *ipr_cmd; 5575 int rc = 0; 5576 5577 scsi_cmd->scsi_done = done; 5578 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5579 res = scsi_cmd->device->hostdata; 5580 scsi_cmd->result = (DID_OK << 16); 5581 5582 /* 5583 * We are currently blocking all devices due to a host reset 5584 * We have told the host to stop giving us new requests, but 5585 * ERP ops don't count. FIXME 5586 */ 5587 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 5588 return SCSI_MLQUEUE_HOST_BUSY; 5589 5590 /* 5591 * FIXME - Create scsi_set_host_offline interface 5592 * and the ioa_is_dead check can be removed 5593 */ 5594 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 5595 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 5596 scsi_cmd->result = (DID_NO_CONNECT << 16); 5597 scsi_cmd->scsi_done(scsi_cmd); 5598 return 0; 5599 } 5600 5601 if (ipr_is_gata(res) && res->sata_port) 5602 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 5603 5604 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5605 ioarcb = &ipr_cmd->ioarcb; 5606 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5607 5608 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 5609 ipr_cmd->scsi_cmd = scsi_cmd; 5610 ioarcb->res_handle = res->res_handle; 5611 ipr_cmd->done = ipr_scsi_done; 5612 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5613 5614 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 5615 if (scsi_cmd->underflow == 0) 5616 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5617 5618 if (res->needs_sync_complete) { 5619 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 5620 res->needs_sync_complete = 0; 5621 } 5622 5623 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5624 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 5625 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 5626 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 5627 } 5628 5629 if (scsi_cmd->cmnd[0] >= 0xC0 && 5630 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 5631 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5632 5633 if (likely(rc == 0)) { 5634 if (ioa_cfg->sis64) 5635 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 5636 else 5637 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 5638 } 5639 5640 if (likely(rc == 0)) { 5641 mb(); 5642 ipr_send_command(ipr_cmd); 5643 } else { 5644 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5645 return SCSI_MLQUEUE_HOST_BUSY; 5646 } 5647 5648 return 0; 5649} 5650 5651/** 5652 * ipr_ioctl - IOCTL handler 5653 * @sdev: scsi device struct 5654 * @cmd: IOCTL cmd 5655 * @arg: IOCTL arg 5656 * 5657 * Return value: 5658 * 0 on success / other on failure 5659 **/ 5660static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 5661{ 5662 struct ipr_resource_entry *res; 5663 5664 res = (struct ipr_resource_entry *)sdev->hostdata; 5665 if (res && ipr_is_gata(res)) { 5666 if (cmd == HDIO_GET_IDENTITY) 5667 return -ENOTTY; 5668 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 5669 } 5670 5671 return -EINVAL; 5672} 5673 5674/** 5675 * ipr_info - Get information about the card/driver 5676 * @scsi_host: scsi host struct 5677 * 5678 * Return value: 5679 * pointer to buffer with description string 5680 **/ 5681static const char * ipr_ioa_info(struct Scsi_Host *host) 5682{ 5683 static char buffer[512]; 5684 struct ipr_ioa_cfg *ioa_cfg; 5685 unsigned long lock_flags = 0; 5686 5687 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 5688 5689 spin_lock_irqsave(host->host_lock, lock_flags); 5690 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 5691 spin_unlock_irqrestore(host->host_lock, lock_flags); 5692 5693 return buffer; 5694} 5695 5696static struct scsi_host_template driver_template = { 5697 .module = THIS_MODULE, 5698 .name = "IPR", 5699 .info = ipr_ioa_info, 5700 .ioctl = ipr_ioctl, 5701 .queuecommand = ipr_queuecommand, 5702 .eh_abort_handler = ipr_eh_abort, 5703 .eh_device_reset_handler = ipr_eh_dev_reset, 5704 .eh_host_reset_handler = ipr_eh_host_reset, 5705 .slave_alloc = ipr_slave_alloc, 5706 .slave_configure = ipr_slave_configure, 5707 .slave_destroy = ipr_slave_destroy, 5708 .target_alloc = ipr_target_alloc, 5709 .target_destroy = ipr_target_destroy, 5710 .change_queue_depth = ipr_change_queue_depth, 5711 .change_queue_type = ipr_change_queue_type, 5712 .bios_param = ipr_biosparam, 5713 .can_queue = IPR_MAX_COMMANDS, 5714 .this_id = -1, 5715 .sg_tablesize = IPR_MAX_SGLIST, 5716 .max_sectors = IPR_IOA_MAX_SECTORS, 5717 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5718 .use_clustering = ENABLE_CLUSTERING, 5719 .shost_attrs = ipr_ioa_attrs, 5720 .sdev_attrs = ipr_dev_attrs, 5721 .proc_name = IPR_NAME 5722}; 5723 5724/** 5725 * ipr_ata_phy_reset - libata phy_reset handler 5726 * @ap: ata port to reset 5727 * 5728 **/ 5729static void ipr_ata_phy_reset(struct ata_port *ap) 5730{ 5731 unsigned long flags; 5732 struct ipr_sata_port *sata_port = ap->private_data; 5733 struct ipr_resource_entry *res = sata_port->res; 5734 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5735 int rc; 5736 5737 ENTER; 5738 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5739 while(ioa_cfg->in_reset_reload) { 5740 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5741 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5742 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5743 } 5744 5745 if (!ioa_cfg->allow_cmds) 5746 goto out_unlock; 5747 5748 rc = ipr_device_reset(ioa_cfg, res); 5749 5750 if (rc) { 5751 ata_port_disable(ap); 5752 goto out_unlock; 5753 } 5754 5755 ap->link.device[0].class = res->ata_class; 5756 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 5757 ata_port_disable(ap); 5758 5759out_unlock: 5760 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5761 LEAVE; 5762} 5763 5764/** 5765 * ipr_ata_post_internal - Cleanup after an internal command 5766 * @qc: ATA queued command 5767 * 5768 * Return value: 5769 * none 5770 **/ 5771static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5772{ 5773 struct ipr_sata_port *sata_port = qc->ap->private_data; 5774 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5775 struct ipr_cmnd *ipr_cmd; 5776 unsigned long flags; 5777 5778 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5779 while(ioa_cfg->in_reset_reload) { 5780 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5781 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5782 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5783 } 5784 5785 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5786 if (ipr_cmd->qc == qc) { 5787 ipr_device_reset(ioa_cfg, sata_port->res); 5788 break; 5789 } 5790 } 5791 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5792} 5793 5794/** 5795 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5796 * @regs: destination 5797 * @tf: source ATA taskfile 5798 * 5799 * Return value: 5800 * none 5801 **/ 5802static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5803 struct ata_taskfile *tf) 5804{ 5805 regs->feature = tf->feature; 5806 regs->nsect = tf->nsect; 5807 regs->lbal = tf->lbal; 5808 regs->lbam = tf->lbam; 5809 regs->lbah = tf->lbah; 5810 regs->device = tf->device; 5811 regs->command = tf->command; 5812 regs->hob_feature = tf->hob_feature; 5813 regs->hob_nsect = tf->hob_nsect; 5814 regs->hob_lbal = tf->hob_lbal; 5815 regs->hob_lbam = tf->hob_lbam; 5816 regs->hob_lbah = tf->hob_lbah; 5817 regs->ctl = tf->ctl; 5818} 5819 5820/** 5821 * ipr_sata_done - done function for SATA commands 5822 * @ipr_cmd: ipr command struct 5823 * 5824 * This function is invoked by the interrupt handler for 5825 * ops generated by the SCSI mid-layer to SATA devices 5826 * 5827 * Return value: 5828 * none 5829 **/ 5830static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5831{ 5832 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5833 struct ata_queued_cmd *qc = ipr_cmd->qc; 5834 struct ipr_sata_port *sata_port = qc->ap->private_data; 5835 struct ipr_resource_entry *res = sata_port->res; 5836 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5837 5838 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 5839 sizeof(struct ipr_ioasa_gata)); 5840 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5841 5842 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5843 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 5844 5845 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5846 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5847 else 5848 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5849 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5850 ata_qc_complete(qc); 5851} 5852 5853/** 5854 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 5855 * @ipr_cmd: ipr command struct 5856 * @qc: ATA queued command 5857 * 5858 **/ 5859static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 5860 struct ata_queued_cmd *qc) 5861{ 5862 u32 ioadl_flags = 0; 5863 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5864 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5865 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 5866 int len = qc->nbytes; 5867 struct scatterlist *sg; 5868 unsigned int si; 5869 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5870 5871 if (len == 0) 5872 return; 5873 5874 if (qc->dma_dir == DMA_TO_DEVICE) { 5875 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5876 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5877 } else if (qc->dma_dir == DMA_FROM_DEVICE) 5878 ioadl_flags = IPR_IOADL_FLAGS_READ; 5879 5880 ioarcb->data_transfer_length = cpu_to_be32(len); 5881 ioarcb->ioadl_len = 5882 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5883 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5884 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); 5885 5886 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5887 ioadl64->flags = cpu_to_be32(ioadl_flags); 5888 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 5889 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 5890 5891 last_ioadl64 = ioadl64; 5892 ioadl64++; 5893 } 5894 5895 if (likely(last_ioadl64)) 5896 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5897} 5898 5899/** 5900 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5901 * @ipr_cmd: ipr command struct 5902 * @qc: ATA queued command 5903 * 5904 **/ 5905static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5906 struct ata_queued_cmd *qc) 5907{ 5908 u32 ioadl_flags = 0; 5909 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5910 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5911 struct ipr_ioadl_desc *last_ioadl = NULL; 5912 int len = qc->nbytes; 5913 struct scatterlist *sg; 5914 unsigned int si; 5915 5916 if (len == 0) 5917 return; 5918 5919 if (qc->dma_dir == DMA_TO_DEVICE) { 5920 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5921 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5922 ioarcb->data_transfer_length = cpu_to_be32(len); 5923 ioarcb->ioadl_len = 5924 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5925 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5926 ioadl_flags = IPR_IOADL_FLAGS_READ; 5927 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5928 ioarcb->read_ioadl_len = 5929 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5930 } 5931 5932 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5933 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5934 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5935 5936 last_ioadl = ioadl; 5937 ioadl++; 5938 } 5939 5940 if (likely(last_ioadl)) 5941 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5942} 5943 5944/** 5945 * ipr_qc_issue - Issue a SATA qc to a device 5946 * @qc: queued command 5947 * 5948 * Return value: 5949 * 0 if success 5950 **/ 5951static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5952{ 5953 struct ata_port *ap = qc->ap; 5954 struct ipr_sata_port *sata_port = ap->private_data; 5955 struct ipr_resource_entry *res = sata_port->res; 5956 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5957 struct ipr_cmnd *ipr_cmd; 5958 struct ipr_ioarcb *ioarcb; 5959 struct ipr_ioarcb_ata_regs *regs; 5960 5961 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5962 return AC_ERR_SYSTEM; 5963 5964 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5965 ioarcb = &ipr_cmd->ioarcb; 5966 5967 if (ioa_cfg->sis64) { 5968 regs = &ipr_cmd->i.ata_ioadl.regs; 5969 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 5970 } else 5971 regs = &ioarcb->u.add_data.u.regs; 5972 5973 memset(regs, 0, sizeof(*regs)); 5974 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 5975 5976 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5977 ipr_cmd->qc = qc; 5978 ipr_cmd->done = ipr_sata_done; 5979 ipr_cmd->ioarcb.res_handle = res->res_handle; 5980 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 5981 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5982 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5983 ipr_cmd->dma_use_sg = qc->n_elem; 5984 5985 if (ioa_cfg->sis64) 5986 ipr_build_ata_ioadl64(ipr_cmd, qc); 5987 else 5988 ipr_build_ata_ioadl(ipr_cmd, qc); 5989 5990 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5991 ipr_copy_sata_tf(regs, &qc->tf); 5992 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 5993 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5994 5995 switch (qc->tf.protocol) { 5996 case ATA_PROT_NODATA: 5997 case ATA_PROT_PIO: 5998 break; 5999 6000 case ATA_PROT_DMA: 6001 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6002 break; 6003 6004 case ATAPI_PROT_PIO: 6005 case ATAPI_PROT_NODATA: 6006 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6007 break; 6008 6009 case ATAPI_PROT_DMA: 6010 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6011 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6012 break; 6013 6014 default: 6015 WARN_ON(1); 6016 return AC_ERR_INVALID; 6017 } 6018 6019 mb(); 6020 6021 ipr_send_command(ipr_cmd); 6022 6023 return 0; 6024} 6025 6026/** 6027 * ipr_qc_fill_rtf - Read result TF 6028 * @qc: ATA queued command 6029 * 6030 * Return value: 6031 * true 6032 **/ 6033static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 6034{ 6035 struct ipr_sata_port *sata_port = qc->ap->private_data; 6036 struct ipr_ioasa_gata *g = &sata_port->ioasa; 6037 struct ata_taskfile *tf = &qc->result_tf; 6038 6039 tf->feature = g->error; 6040 tf->nsect = g->nsect; 6041 tf->lbal = g->lbal; 6042 tf->lbam = g->lbam; 6043 tf->lbah = g->lbah; 6044 tf->device = g->device; 6045 tf->command = g->status; 6046 tf->hob_nsect = g->hob_nsect; 6047 tf->hob_lbal = g->hob_lbal; 6048 tf->hob_lbam = g->hob_lbam; 6049 tf->hob_lbah = g->hob_lbah; 6050 tf->ctl = g->alt_status; 6051 6052 return true; 6053} 6054 6055static struct ata_port_operations ipr_sata_ops = { 6056 .phy_reset = ipr_ata_phy_reset, 6057 .hardreset = ipr_sata_reset, 6058 .post_internal_cmd = ipr_ata_post_internal, 6059 .qc_prep = ata_noop_qc_prep, 6060 .qc_issue = ipr_qc_issue, 6061 .qc_fill_rtf = ipr_qc_fill_rtf, 6062 .port_start = ata_sas_port_start, 6063 .port_stop = ata_sas_port_stop 6064}; 6065 6066static struct ata_port_info sata_port_info = { 6067 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 6068 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 6069 .pio_mask = 0x10, /* pio4 */ 6070 .mwdma_mask = 0x07, 6071 .udma_mask = 0x7f, /* udma0-6 */ 6072 .port_ops = &ipr_sata_ops 6073}; 6074 6075#ifdef CONFIG_PPC_PSERIES 6076static const u16 ipr_blocked_processors[] = { 6077 PV_NORTHSTAR, 6078 PV_PULSAR, 6079 PV_POWER4, 6080 PV_ICESTAR, 6081 PV_SSTAR, 6082 PV_POWER4p, 6083 PV_630, 6084 PV_630p 6085}; 6086 6087/** 6088 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 6089 * @ioa_cfg: ioa cfg struct 6090 * 6091 * Adapters that use Gemstone revision < 3.1 do not work reliably on 6092 * certain pSeries hardware. This function determines if the given 6093 * adapter is in one of these confgurations or not. 6094 * 6095 * Return value: 6096 * 1 if adapter is not supported / 0 if adapter is supported 6097 **/ 6098static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 6099{ 6100 int i; 6101 6102 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 6103 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 6104 if (__is_processor(ipr_blocked_processors[i])) 6105 return 1; 6106 } 6107 } 6108 return 0; 6109} 6110#else 6111#define ipr_invalid_adapter(ioa_cfg) 0 6112#endif 6113 6114/** 6115 * ipr_ioa_bringdown_done - IOA bring down completion. 6116 * @ipr_cmd: ipr command struct 6117 * 6118 * This function processes the completion of an adapter bring down. 6119 * It wakes any reset sleepers. 6120 * 6121 * Return value: 6122 * IPR_RC_JOB_RETURN 6123 **/ 6124static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 6125{ 6126 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6127 6128 ENTER; 6129 ioa_cfg->in_reset_reload = 0; 6130 ioa_cfg->reset_retries = 0; 6131 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6132 wake_up_all(&ioa_cfg->reset_wait_q); 6133 6134 spin_unlock_irq(ioa_cfg->host->host_lock); 6135 scsi_unblock_requests(ioa_cfg->host); 6136 spin_lock_irq(ioa_cfg->host->host_lock); 6137 LEAVE; 6138 6139 return IPR_RC_JOB_RETURN; 6140} 6141 6142/** 6143 * ipr_ioa_reset_done - IOA reset completion. 6144 * @ipr_cmd: ipr command struct 6145 * 6146 * This function processes the completion of an adapter reset. 6147 * It schedules any necessary mid-layer add/removes and 6148 * wakes any reset sleepers. 6149 * 6150 * Return value: 6151 * IPR_RC_JOB_RETURN 6152 **/ 6153static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 6154{ 6155 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6156 struct ipr_resource_entry *res; 6157 struct ipr_hostrcb *hostrcb, *temp; 6158 int i = 0; 6159 6160 ENTER; 6161 ioa_cfg->in_reset_reload = 0; 6162 ioa_cfg->allow_cmds = 1; 6163 ioa_cfg->reset_cmd = NULL; 6164 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 6165 6166 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 6167 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 6168 ipr_trace; 6169 break; 6170 } 6171 } 6172 schedule_work(&ioa_cfg->work_q); 6173 6174 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 6175 list_del(&hostrcb->queue); 6176 if (i++ < IPR_NUM_LOG_HCAMS) 6177 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 6178 else 6179 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 6180 } 6181 6182 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 6183 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 6184 6185 ioa_cfg->reset_retries = 0; 6186 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6187 wake_up_all(&ioa_cfg->reset_wait_q); 6188 6189 spin_unlock(ioa_cfg->host->host_lock); 6190 scsi_unblock_requests(ioa_cfg->host); 6191 spin_lock(ioa_cfg->host->host_lock); 6192 6193 if (!ioa_cfg->allow_cmds) 6194 scsi_block_requests(ioa_cfg->host); 6195 6196 LEAVE; 6197 return IPR_RC_JOB_RETURN; 6198} 6199 6200/** 6201 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 6202 * @supported_dev: supported device struct 6203 * @vpids: vendor product id struct 6204 * 6205 * Return value: 6206 * none 6207 **/ 6208static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 6209 struct ipr_std_inq_vpids *vpids) 6210{ 6211 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 6212 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 6213 supported_dev->num_records = 1; 6214 supported_dev->data_length = 6215 cpu_to_be16(sizeof(struct ipr_supported_device)); 6216 supported_dev->reserved = 0; 6217} 6218 6219/** 6220 * ipr_set_supported_devs - Send Set Supported Devices for a device 6221 * @ipr_cmd: ipr command struct 6222 * 6223 * This function sends a Set Supported Devices to the adapter 6224 * 6225 * Return value: 6226 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6227 **/ 6228static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 6229{ 6230 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6231 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 6232 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6233 struct ipr_resource_entry *res = ipr_cmd->u.res; 6234 6235 ipr_cmd->job_step = ipr_ioa_reset_done; 6236 6237 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 6238 if (!ipr_is_scsi_disk(res)) 6239 continue; 6240 6241 ipr_cmd->u.res = res; 6242 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 6243 6244 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6245 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6246 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6247 6248 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 6249 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 6250 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 6251 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 6252 6253 ipr_init_ioadl(ipr_cmd, 6254 ioa_cfg->vpd_cbs_dma + 6255 offsetof(struct ipr_misc_cbs, supp_dev), 6256 sizeof(struct ipr_supported_device), 6257 IPR_IOADL_FLAGS_WRITE_LAST); 6258 6259 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6260 IPR_SET_SUP_DEVICE_TIMEOUT); 6261 6262 if (!ioa_cfg->sis64) 6263 ipr_cmd->job_step = ipr_set_supported_devs; 6264 return IPR_RC_JOB_RETURN; 6265 } 6266 6267 return IPR_RC_JOB_CONTINUE; 6268} 6269 6270/** 6271 * ipr_get_mode_page - Locate specified mode page 6272 * @mode_pages: mode page buffer 6273 * @page_code: page code to find 6274 * @len: minimum required length for mode page 6275 * 6276 * Return value: 6277 * pointer to mode page / NULL on failure 6278 **/ 6279static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 6280 u32 page_code, u32 len) 6281{ 6282 struct ipr_mode_page_hdr *mode_hdr; 6283 u32 page_length; 6284 u32 length; 6285 6286 if (!mode_pages || (mode_pages->hdr.length == 0)) 6287 return NULL; 6288 6289 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 6290 mode_hdr = (struct ipr_mode_page_hdr *) 6291 (mode_pages->data + mode_pages->hdr.block_desc_len); 6292 6293 while (length) { 6294 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 6295 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 6296 return mode_hdr; 6297 break; 6298 } else { 6299 page_length = (sizeof(struct ipr_mode_page_hdr) + 6300 mode_hdr->page_length); 6301 length -= page_length; 6302 mode_hdr = (struct ipr_mode_page_hdr *) 6303 ((unsigned long)mode_hdr + page_length); 6304 } 6305 } 6306 return NULL; 6307} 6308 6309/** 6310 * ipr_check_term_power - Check for term power errors 6311 * @ioa_cfg: ioa config struct 6312 * @mode_pages: IOAFP mode pages buffer 6313 * 6314 * Check the IOAFP's mode page 28 for term power errors 6315 * 6316 * Return value: 6317 * nothing 6318 **/ 6319static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 6320 struct ipr_mode_pages *mode_pages) 6321{ 6322 int i; 6323 int entry_length; 6324 struct ipr_dev_bus_entry *bus; 6325 struct ipr_mode_page28 *mode_page; 6326 6327 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6328 sizeof(struct ipr_mode_page28)); 6329 6330 entry_length = mode_page->entry_length; 6331 6332 bus = mode_page->bus; 6333 6334 for (i = 0; i < mode_page->num_entries; i++) { 6335 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 6336 dev_err(&ioa_cfg->pdev->dev, 6337 "Term power is absent on scsi bus %d\n", 6338 bus->res_addr.bus); 6339 } 6340 6341 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 6342 } 6343} 6344 6345/** 6346 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 6347 * @ioa_cfg: ioa config struct 6348 * 6349 * Looks through the config table checking for SES devices. If 6350 * the SES device is in the SES table indicating a maximum SCSI 6351 * bus speed, the speed is limited for the bus. 6352 * 6353 * Return value: 6354 * none 6355 **/ 6356static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 6357{ 6358 u32 max_xfer_rate; 6359 int i; 6360 6361 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 6362 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 6363 ioa_cfg->bus_attr[i].bus_width); 6364 6365 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 6366 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 6367 } 6368} 6369 6370/** 6371 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 6372 * @ioa_cfg: ioa config struct 6373 * @mode_pages: mode page 28 buffer 6374 * 6375 * Updates mode page 28 based on driver configuration 6376 * 6377 * Return value: 6378 * none 6379 **/ 6380static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 6381 struct ipr_mode_pages *mode_pages) 6382{ 6383 int i, entry_length; 6384 struct ipr_dev_bus_entry *bus; 6385 struct ipr_bus_attributes *bus_attr; 6386 struct ipr_mode_page28 *mode_page; 6387 6388 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6389 sizeof(struct ipr_mode_page28)); 6390 6391 entry_length = mode_page->entry_length; 6392 6393 /* Loop for each device bus entry */ 6394 for (i = 0, bus = mode_page->bus; 6395 i < mode_page->num_entries; 6396 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 6397 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 6398 dev_err(&ioa_cfg->pdev->dev, 6399 "Invalid resource address reported: 0x%08X\n", 6400 IPR_GET_PHYS_LOC(bus->res_addr)); 6401 continue; 6402 } 6403 6404 bus_attr = &ioa_cfg->bus_attr[i]; 6405 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 6406 bus->bus_width = bus_attr->bus_width; 6407 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 6408 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 6409 if (bus_attr->qas_enabled) 6410 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 6411 else 6412 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 6413 } 6414} 6415 6416/** 6417 * ipr_build_mode_select - Build a mode select command 6418 * @ipr_cmd: ipr command struct 6419 * @res_handle: resource handle to send command to 6420 * @parm: Byte 2 of Mode Sense command 6421 * @dma_addr: DMA buffer address 6422 * @xfer_len: data transfer length 6423 * 6424 * Return value: 6425 * none 6426 **/ 6427static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 6428 __be32 res_handle, u8 parm, 6429 dma_addr_t dma_addr, u8 xfer_len) 6430{ 6431 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6432 6433 ioarcb->res_handle = res_handle; 6434 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6435 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6436 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 6437 ioarcb->cmd_pkt.cdb[1] = parm; 6438 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6439 6440 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 6441} 6442 6443/** 6444 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 6445 * @ipr_cmd: ipr command struct 6446 * 6447 * This function sets up the SCSI bus attributes and sends 6448 * a Mode Select for Page 28 to activate them. 6449 * 6450 * Return value: 6451 * IPR_RC_JOB_RETURN 6452 **/ 6453static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 6454{ 6455 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6456 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6457 int length; 6458 6459 ENTER; 6460 ipr_scsi_bus_speed_limit(ioa_cfg); 6461 ipr_check_term_power(ioa_cfg, mode_pages); 6462 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 6463 length = mode_pages->hdr.length + 1; 6464 mode_pages->hdr.length = 0; 6465 6466 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6467 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6468 length); 6469 6470 ipr_cmd->job_step = ipr_set_supported_devs; 6471 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6472 struct ipr_resource_entry, queue); 6473 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6474 6475 LEAVE; 6476 return IPR_RC_JOB_RETURN; 6477} 6478 6479/** 6480 * ipr_build_mode_sense - Builds a mode sense command 6481 * @ipr_cmd: ipr command struct 6482 * @res: resource entry struct 6483 * @parm: Byte 2 of mode sense command 6484 * @dma_addr: DMA address of mode sense buffer 6485 * @xfer_len: Size of DMA buffer 6486 * 6487 * Return value: 6488 * none 6489 **/ 6490static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 6491 __be32 res_handle, 6492 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 6493{ 6494 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6495 6496 ioarcb->res_handle = res_handle; 6497 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 6498 ioarcb->cmd_pkt.cdb[2] = parm; 6499 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6500 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6501 6502 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6503} 6504 6505/** 6506 * ipr_reset_cmd_failed - Handle failure of IOA reset command 6507 * @ipr_cmd: ipr command struct 6508 * 6509 * This function handles the failure of an IOA bringup command. 6510 * 6511 * Return value: 6512 * IPR_RC_JOB_RETURN 6513 **/ 6514static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 6515{ 6516 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6517 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6518 6519 dev_err(&ioa_cfg->pdev->dev, 6520 "0x%02X failed with IOASC: 0x%08X\n", 6521 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 6522 6523 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6524 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6525 return IPR_RC_JOB_RETURN; 6526} 6527 6528/** 6529 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 6530 * @ipr_cmd: ipr command struct 6531 * 6532 * This function handles the failure of a Mode Sense to the IOAFP. 6533 * Some adapters do not handle all mode pages. 6534 * 6535 * Return value: 6536 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6537 **/ 6538static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 6539{ 6540 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6541 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6542 6543 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6544 ipr_cmd->job_step = ipr_set_supported_devs; 6545 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6546 struct ipr_resource_entry, queue); 6547 return IPR_RC_JOB_CONTINUE; 6548 } 6549 6550 return ipr_reset_cmd_failed(ipr_cmd); 6551} 6552 6553/** 6554 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 6555 * @ipr_cmd: ipr command struct 6556 * 6557 * This function send a Page 28 mode sense to the IOA to 6558 * retrieve SCSI bus attributes. 6559 * 6560 * Return value: 6561 * IPR_RC_JOB_RETURN 6562 **/ 6563static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 6564{ 6565 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6566 6567 ENTER; 6568 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6569 0x28, ioa_cfg->vpd_cbs_dma + 6570 offsetof(struct ipr_misc_cbs, mode_pages), 6571 sizeof(struct ipr_mode_pages)); 6572 6573 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 6574 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 6575 6576 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6577 6578 LEAVE; 6579 return IPR_RC_JOB_RETURN; 6580} 6581 6582/** 6583 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 6584 * @ipr_cmd: ipr command struct 6585 * 6586 * This function enables dual IOA RAID support if possible. 6587 * 6588 * Return value: 6589 * IPR_RC_JOB_RETURN 6590 **/ 6591static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 6592{ 6593 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6594 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6595 struct ipr_mode_page24 *mode_page; 6596 int length; 6597 6598 ENTER; 6599 mode_page = ipr_get_mode_page(mode_pages, 0x24, 6600 sizeof(struct ipr_mode_page24)); 6601 6602 if (mode_page) 6603 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 6604 6605 length = mode_pages->hdr.length + 1; 6606 mode_pages->hdr.length = 0; 6607 6608 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6609 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6610 length); 6611 6612 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6613 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6614 6615 LEAVE; 6616 return IPR_RC_JOB_RETURN; 6617} 6618 6619/** 6620 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 6621 * @ipr_cmd: ipr command struct 6622 * 6623 * This function handles the failure of a Mode Sense to the IOAFP. 6624 * Some adapters do not handle all mode pages. 6625 * 6626 * Return value: 6627 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6628 **/ 6629static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 6630{ 6631 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6632 6633 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6634 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6635 return IPR_RC_JOB_CONTINUE; 6636 } 6637 6638 return ipr_reset_cmd_failed(ipr_cmd); 6639} 6640 6641/** 6642 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 6643 * @ipr_cmd: ipr command struct 6644 * 6645 * This function send a mode sense to the IOA to retrieve 6646 * the IOA Advanced Function Control mode page. 6647 * 6648 * Return value: 6649 * IPR_RC_JOB_RETURN 6650 **/ 6651static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 6652{ 6653 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6654 6655 ENTER; 6656 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6657 0x24, ioa_cfg->vpd_cbs_dma + 6658 offsetof(struct ipr_misc_cbs, mode_pages), 6659 sizeof(struct ipr_mode_pages)); 6660 6661 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 6662 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 6663 6664 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6665 6666 LEAVE; 6667 return IPR_RC_JOB_RETURN; 6668} 6669 6670/** 6671 * ipr_init_res_table - Initialize the resource table 6672 * @ipr_cmd: ipr command struct 6673 * 6674 * This function looks through the existing resource table, comparing 6675 * it with the config table. This function will take care of old/new 6676 * devices and schedule adding/removing them from the mid-layer 6677 * as appropriate. 6678 * 6679 * Return value: 6680 * IPR_RC_JOB_CONTINUE 6681 **/ 6682static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 6683{ 6684 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6685 struct ipr_resource_entry *res, *temp; 6686 struct ipr_config_table_entry_wrapper cfgtew; 6687 int entries, found, flag, i; 6688 LIST_HEAD(old_res); 6689 6690 ENTER; 6691 if (ioa_cfg->sis64) 6692 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 6693 else 6694 flag = ioa_cfg->u.cfg_table->hdr.flags; 6695 6696 if (flag & IPR_UCODE_DOWNLOAD_REQ) 6697 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 6698 6699 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6700 list_move_tail(&res->queue, &old_res); 6701 6702 if (ioa_cfg->sis64) 6703 entries = ioa_cfg->u.cfg_table64->hdr64.num_entries; 6704 else 6705 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 6706 6707 for (i = 0; i < entries; i++) { 6708 if (ioa_cfg->sis64) 6709 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 6710 else 6711 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 6712 found = 0; 6713 6714 list_for_each_entry_safe(res, temp, &old_res, queue) { 6715 if (ipr_is_same_device(res, &cfgtew)) { 6716 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6717 found = 1; 6718 break; 6719 } 6720 } 6721 6722 if (!found) { 6723 if (list_empty(&ioa_cfg->free_res_q)) { 6724 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6725 break; 6726 } 6727 6728 found = 1; 6729 res = list_entry(ioa_cfg->free_res_q.next, 6730 struct ipr_resource_entry, queue); 6731 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6732 ipr_init_res_entry(res, &cfgtew); 6733 res->add_to_ml = 1; 6734 } 6735 6736 if (found) 6737 ipr_update_res_entry(res, &cfgtew); 6738 } 6739 6740 list_for_each_entry_safe(res, temp, &old_res, queue) { 6741 if (res->sdev) { 6742 res->del_from_ml = 1; 6743 res->res_handle = IPR_INVALID_RES_HANDLE; 6744 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6745 } 6746 } 6747 6748 list_for_each_entry_safe(res, temp, &old_res, queue) { 6749 ipr_clear_res_target(res); 6750 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6751 } 6752 6753 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6754 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6755 else 6756 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6757 6758 LEAVE; 6759 return IPR_RC_JOB_CONTINUE; 6760} 6761 6762/** 6763 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6764 * @ipr_cmd: ipr command struct 6765 * 6766 * This function sends a Query IOA Configuration command 6767 * to the adapter to retrieve the IOA configuration table. 6768 * 6769 * Return value: 6770 * IPR_RC_JOB_RETURN 6771 **/ 6772static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6773{ 6774 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6775 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6776 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6777 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6778 6779 ENTER; 6780 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6781 ioa_cfg->dual_raid = 1; 6782 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6783 ucode_vpd->major_release, ucode_vpd->card_type, 6784 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6785 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6786 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6787 6788 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6789 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 6790 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 6791 6792 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 6793 IPR_IOADL_FLAGS_READ_LAST); 6794 6795 ipr_cmd->job_step = ipr_init_res_table; 6796 6797 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6798 6799 LEAVE; 6800 return IPR_RC_JOB_RETURN; 6801} 6802 6803/** 6804 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6805 * @ipr_cmd: ipr command struct 6806 * 6807 * This utility function sends an inquiry to the adapter. 6808 * 6809 * Return value: 6810 * none 6811 **/ 6812static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6813 dma_addr_t dma_addr, u8 xfer_len) 6814{ 6815 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6816 6817 ENTER; 6818 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6819 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6820 6821 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6822 ioarcb->cmd_pkt.cdb[1] = flags; 6823 ioarcb->cmd_pkt.cdb[2] = page; 6824 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6825 6826 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6827 6828 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6829 LEAVE; 6830} 6831 6832/** 6833 * ipr_inquiry_page_supported - Is the given inquiry page supported 6834 * @page0: inquiry page 0 buffer 6835 * @page: page code. 6836 * 6837 * This function determines if the specified inquiry page is supported. 6838 * 6839 * Return value: 6840 * 1 if page is supported / 0 if not 6841 **/ 6842static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6843{ 6844 int i; 6845 6846 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6847 if (page0->page[i] == page) 6848 return 1; 6849 6850 return 0; 6851} 6852 6853/** 6854 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6855 * @ipr_cmd: ipr command struct 6856 * 6857 * This function sends a Page 0xD0 inquiry to the adapter 6858 * to retrieve adapter capabilities. 6859 * 6860 * Return value: 6861 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6862 **/ 6863static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6864{ 6865 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6866 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6867 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6868 6869 ENTER; 6870 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6871 memset(cap, 0, sizeof(*cap)); 6872 6873 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6874 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6875 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6876 sizeof(struct ipr_inquiry_cap)); 6877 return IPR_RC_JOB_RETURN; 6878 } 6879 6880 LEAVE; 6881 return IPR_RC_JOB_CONTINUE; 6882} 6883 6884/** 6885 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6886 * @ipr_cmd: ipr command struct 6887 * 6888 * This function sends a Page 3 inquiry to the adapter 6889 * to retrieve software VPD information. 6890 * 6891 * Return value: 6892 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6893 **/ 6894static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6895{ 6896 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6897 6898 ENTER; 6899 6900 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6901 6902 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6903 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6904 sizeof(struct ipr_inquiry_page3)); 6905 6906 LEAVE; 6907 return IPR_RC_JOB_RETURN; 6908} 6909 6910/** 6911 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6912 * @ipr_cmd: ipr command struct 6913 * 6914 * This function sends a Page 0 inquiry to the adapter 6915 * to retrieve supported inquiry pages. 6916 * 6917 * Return value: 6918 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6919 **/ 6920static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6921{ 6922 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6923 char type[5]; 6924 6925 ENTER; 6926 6927 /* Grab the type out of the VPD and store it away */ 6928 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6929 type[4] = '\0'; 6930 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6931 6932 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6933 6934 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6935 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6936 sizeof(struct ipr_inquiry_page0)); 6937 6938 LEAVE; 6939 return IPR_RC_JOB_RETURN; 6940} 6941 6942/** 6943 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6944 * @ipr_cmd: ipr command struct 6945 * 6946 * This function sends a standard inquiry to the adapter. 6947 * 6948 * Return value: 6949 * IPR_RC_JOB_RETURN 6950 **/ 6951static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6952{ 6953 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6954 6955 ENTER; 6956 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6957 6958 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6959 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6960 sizeof(struct ipr_ioa_vpd)); 6961 6962 LEAVE; 6963 return IPR_RC_JOB_RETURN; 6964} 6965 6966/** 6967 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 6968 * @ipr_cmd: ipr command struct 6969 * 6970 * This function send an Identify Host Request Response Queue 6971 * command to establish the HRRQ with the adapter. 6972 * 6973 * Return value: 6974 * IPR_RC_JOB_RETURN 6975 **/ 6976static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 6977{ 6978 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6979 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6980 6981 ENTER; 6982 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 6983 6984 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 6985 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6986 6987 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6988 if (ioa_cfg->sis64) 6989 ioarcb->cmd_pkt.cdb[1] = 0x1; 6990 ioarcb->cmd_pkt.cdb[2] = 6991 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; 6992 ioarcb->cmd_pkt.cdb[3] = 6993 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; 6994 ioarcb->cmd_pkt.cdb[4] = 6995 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; 6996 ioarcb->cmd_pkt.cdb[5] = 6997 ((u64) ioa_cfg->host_rrq_dma) & 0xff; 6998 ioarcb->cmd_pkt.cdb[7] = 6999 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 7000 ioarcb->cmd_pkt.cdb[8] = 7001 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 7002 7003 if (ioa_cfg->sis64) { 7004 ioarcb->cmd_pkt.cdb[10] = 7005 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; 7006 ioarcb->cmd_pkt.cdb[11] = 7007 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; 7008 ioarcb->cmd_pkt.cdb[12] = 7009 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; 7010 ioarcb->cmd_pkt.cdb[13] = 7011 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; 7012 } 7013 7014 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 7015 7016 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7017 7018 LEAVE; 7019 return IPR_RC_JOB_RETURN; 7020} 7021 7022/** 7023 * ipr_reset_timer_done - Adapter reset timer function 7024 * @ipr_cmd: ipr command struct 7025 * 7026 * Description: This function is used in adapter reset processing 7027 * for timing events. If the reset_cmd pointer in the IOA 7028 * config struct is not this adapter's we are doing nested 7029 * resets and fail_all_ops will take care of freeing the 7030 * command block. 7031 * 7032 * Return value: 7033 * none 7034 **/ 7035static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 7036{ 7037 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7038 unsigned long lock_flags = 0; 7039 7040 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7041 7042 if (ioa_cfg->reset_cmd == ipr_cmd) { 7043 list_del(&ipr_cmd->queue); 7044 ipr_cmd->done(ipr_cmd); 7045 } 7046 7047 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7048} 7049 7050/** 7051 * ipr_reset_start_timer - Start a timer for adapter reset job 7052 * @ipr_cmd: ipr command struct 7053 * @timeout: timeout value 7054 * 7055 * Description: This function is used in adapter reset processing 7056 * for timing events. If the reset_cmd pointer in the IOA 7057 * config struct is not this adapter's we are doing nested 7058 * resets and fail_all_ops will take care of freeing the 7059 * command block. 7060 * 7061 * Return value: 7062 * none 7063 **/ 7064static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 7065 unsigned long timeout) 7066{ 7067 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7068 ipr_cmd->done = ipr_reset_ioa_job; 7069 7070 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7071 ipr_cmd->timer.expires = jiffies + timeout; 7072 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 7073 add_timer(&ipr_cmd->timer); 7074} 7075 7076/** 7077 * ipr_init_ioa_mem - Initialize ioa_cfg control block 7078 * @ioa_cfg: ioa cfg struct 7079 * 7080 * Return value: 7081 * nothing 7082 **/ 7083static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 7084{ 7085 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 7086 7087 /* Initialize Host RRQ pointers */ 7088 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 7089 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 7090 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 7091 ioa_cfg->toggle_bit = 1; 7092 7093 /* Zero out config table */ 7094 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 7095} 7096 7097/** 7098 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 7099 * @ipr_cmd: ipr command struct 7100 * 7101 * Return value: 7102 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7103 **/ 7104static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 7105{ 7106 unsigned long stage, stage_time; 7107 u32 feedback; 7108 volatile u32 int_reg; 7109 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7110 u64 maskval = 0; 7111 7112 feedback = readl(ioa_cfg->regs.init_feedback_reg); 7113 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 7114 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 7115 7116 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 7117 7118 /* sanity check the stage_time value */ 7119 if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 7120 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 7121 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 7122 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 7123 7124 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 7125 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 7126 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7127 stage_time = ioa_cfg->transop_timeout; 7128 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7129 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 7130 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7131 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7132 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 7133 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 7134 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7135 return IPR_RC_JOB_CONTINUE; 7136 } 7137 7138 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7139 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 7140 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7141 ipr_cmd->done = ipr_reset_ioa_job; 7142 add_timer(&ipr_cmd->timer); 7143 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7144 7145 return IPR_RC_JOB_RETURN; 7146} 7147 7148/** 7149 * ipr_reset_enable_ioa - Enable the IOA following a reset. 7150 * @ipr_cmd: ipr command struct 7151 * 7152 * This function reinitializes some control blocks and 7153 * enables destructive diagnostics on the adapter. 7154 * 7155 * Return value: 7156 * IPR_RC_JOB_RETURN 7157 **/ 7158static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 7159{ 7160 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7161 volatile u32 int_reg; 7162 7163 ENTER; 7164 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7165 ipr_init_ioa_mem(ioa_cfg); 7166 7167 ioa_cfg->allow_interrupts = 1; 7168 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7169 7170 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7171 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 7172 ioa_cfg->regs.clr_interrupt_mask_reg32); 7173 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7174 return IPR_RC_JOB_CONTINUE; 7175 } 7176 7177 /* Enable destructive diagnostics on IOA */ 7178 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 7179 7180 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 7181 if (ioa_cfg->sis64) 7182 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_mask_reg); 7183 7184 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7185 7186 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 7187 7188 if (ioa_cfg->sis64) { 7189 ipr_cmd->job_step = ipr_reset_next_stage; 7190 return IPR_RC_JOB_CONTINUE; 7191 } 7192 7193 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7194 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 7195 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7196 ipr_cmd->done = ipr_reset_ioa_job; 7197 add_timer(&ipr_cmd->timer); 7198 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7199 7200 LEAVE; 7201 return IPR_RC_JOB_RETURN; 7202} 7203 7204/** 7205 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 7206 * @ipr_cmd: ipr command struct 7207 * 7208 * This function is invoked when an adapter dump has run out 7209 * of processing time. 7210 * 7211 * Return value: 7212 * IPR_RC_JOB_CONTINUE 7213 **/ 7214static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 7215{ 7216 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7217 7218 if (ioa_cfg->sdt_state == GET_DUMP) 7219 ioa_cfg->sdt_state = ABORT_DUMP; 7220 7221 ipr_cmd->job_step = ipr_reset_alert; 7222 7223 return IPR_RC_JOB_CONTINUE; 7224} 7225 7226/** 7227 * ipr_unit_check_no_data - Log a unit check/no data error log 7228 * @ioa_cfg: ioa config struct 7229 * 7230 * Logs an error indicating the adapter unit checked, but for some 7231 * reason, we were unable to fetch the unit check buffer. 7232 * 7233 * Return value: 7234 * nothing 7235 **/ 7236static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 7237{ 7238 ioa_cfg->errors_logged++; 7239 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 7240} 7241 7242/** 7243 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 7244 * @ioa_cfg: ioa config struct 7245 * 7246 * Fetches the unit check buffer from the adapter by clocking the data 7247 * through the mailbox register. 7248 * 7249 * Return value: 7250 * nothing 7251 **/ 7252static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 7253{ 7254 unsigned long mailbox; 7255 struct ipr_hostrcb *hostrcb; 7256 struct ipr_uc_sdt sdt; 7257 int rc, length; 7258 u32 ioasc; 7259 7260 mailbox = readl(ioa_cfg->ioa_mailbox); 7261 7262 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 7263 ipr_unit_check_no_data(ioa_cfg); 7264 return; 7265 } 7266 7267 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 7268 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 7269 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 7270 7271 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 7272 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 7273 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 7274 ipr_unit_check_no_data(ioa_cfg); 7275 return; 7276 } 7277 7278 /* Find length of the first sdt entry (UC buffer) */ 7279 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 7280 length = be32_to_cpu(sdt.entry[0].end_token); 7281 else 7282 length = (be32_to_cpu(sdt.entry[0].end_token) - 7283 be32_to_cpu(sdt.entry[0].start_token)) & 7284 IPR_FMT2_MBX_ADDR_MASK; 7285 7286 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 7287 struct ipr_hostrcb, queue); 7288 list_del(&hostrcb->queue); 7289 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 7290 7291 rc = ipr_get_ldump_data_section(ioa_cfg, 7292 be32_to_cpu(sdt.entry[0].start_token), 7293 (__be32 *)&hostrcb->hcam, 7294 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 7295 7296 if (!rc) { 7297 ipr_handle_log_data(ioa_cfg, hostrcb); 7298 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 7299 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 7300 ioa_cfg->sdt_state == GET_DUMP) 7301 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7302 } else 7303 ipr_unit_check_no_data(ioa_cfg); 7304 7305 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 7306} 7307 7308/** 7309 * ipr_reset_restore_cfg_space - Restore PCI config space. 7310 * @ipr_cmd: ipr command struct 7311 * 7312 * Description: This function restores the saved PCI config space of 7313 * the adapter, fails all outstanding ops back to the callers, and 7314 * fetches the dump/unit check if applicable to this reset. 7315 * 7316 * Return value: 7317 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7318 **/ 7319static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 7320{ 7321 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7322 int rc; 7323 7324 ENTER; 7325 ioa_cfg->pdev->state_saved = true; 7326 rc = pci_restore_state(ioa_cfg->pdev); 7327 7328 if (rc != PCIBIOS_SUCCESSFUL) { 7329 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7330 return IPR_RC_JOB_CONTINUE; 7331 } 7332 7333 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 7334 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7335 return IPR_RC_JOB_CONTINUE; 7336 } 7337 7338 ipr_fail_all_ops(ioa_cfg); 7339 7340 if (ioa_cfg->ioa_unit_checked) { 7341 ioa_cfg->ioa_unit_checked = 0; 7342 ipr_get_unit_check_buffer(ioa_cfg); 7343 ipr_cmd->job_step = ipr_reset_alert; 7344 ipr_reset_start_timer(ipr_cmd, 0); 7345 return IPR_RC_JOB_RETURN; 7346 } 7347 7348 if (ioa_cfg->in_ioa_bringdown) { 7349 ipr_cmd->job_step = ipr_ioa_bringdown_done; 7350 } else { 7351 ipr_cmd->job_step = ipr_reset_enable_ioa; 7352 7353 if (GET_DUMP == ioa_cfg->sdt_state) { 7354 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 7355 ipr_cmd->job_step = ipr_reset_wait_for_dump; 7356 schedule_work(&ioa_cfg->work_q); 7357 return IPR_RC_JOB_RETURN; 7358 } 7359 } 7360 7361 ENTER; 7362 return IPR_RC_JOB_CONTINUE; 7363} 7364 7365/** 7366 * ipr_reset_bist_done - BIST has completed on the adapter. 7367 * @ipr_cmd: ipr command struct 7368 * 7369 * Description: Unblock config space and resume the reset process. 7370 * 7371 * Return value: 7372 * IPR_RC_JOB_CONTINUE 7373 **/ 7374static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 7375{ 7376 ENTER; 7377 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7378 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 7379 LEAVE; 7380 return IPR_RC_JOB_CONTINUE; 7381} 7382 7383/** 7384 * ipr_reset_start_bist - Run BIST on the adapter. 7385 * @ipr_cmd: ipr command struct 7386 * 7387 * Description: This function runs BIST on the adapter, then delays 2 seconds. 7388 * 7389 * Return value: 7390 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7391 **/ 7392static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 7393{ 7394 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7395 int rc; 7396 7397 ENTER; 7398 pci_block_user_cfg_access(ioa_cfg->pdev); 7399 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 7400 7401 if (rc != PCIBIOS_SUCCESSFUL) { 7402 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7403 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7404 rc = IPR_RC_JOB_CONTINUE; 7405 } else { 7406 ipr_cmd->job_step = ipr_reset_bist_done; 7407 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7408 rc = IPR_RC_JOB_RETURN; 7409 } 7410 7411 LEAVE; 7412 return rc; 7413} 7414 7415/** 7416 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 7417 * @ipr_cmd: ipr command struct 7418 * 7419 * Description: This clears PCI reset to the adapter and delays two seconds. 7420 * 7421 * Return value: 7422 * IPR_RC_JOB_RETURN 7423 **/ 7424static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 7425{ 7426 ENTER; 7427 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 7428 ipr_cmd->job_step = ipr_reset_bist_done; 7429 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7430 LEAVE; 7431 return IPR_RC_JOB_RETURN; 7432} 7433 7434/** 7435 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 7436 * @ipr_cmd: ipr command struct 7437 * 7438 * Description: This asserts PCI reset to the adapter. 7439 * 7440 * Return value: 7441 * IPR_RC_JOB_RETURN 7442 **/ 7443static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 7444{ 7445 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7446 struct pci_dev *pdev = ioa_cfg->pdev; 7447 7448 ENTER; 7449 pci_block_user_cfg_access(pdev); 7450 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 7451 ipr_cmd->job_step = ipr_reset_slot_reset_done; 7452 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 7453 LEAVE; 7454 return IPR_RC_JOB_RETURN; 7455} 7456 7457/** 7458 * ipr_reset_allowed - Query whether or not IOA can be reset 7459 * @ioa_cfg: ioa config struct 7460 * 7461 * Return value: 7462 * 0 if reset not allowed / non-zero if reset is allowed 7463 **/ 7464static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 7465{ 7466 volatile u32 temp_reg; 7467 7468 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7469 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 7470} 7471 7472/** 7473 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 7474 * @ipr_cmd: ipr command struct 7475 * 7476 * Description: This function waits for adapter permission to run BIST, 7477 * then runs BIST. If the adapter does not give permission after a 7478 * reasonable time, we will reset the adapter anyway. The impact of 7479 * resetting the adapter without warning the adapter is the risk of 7480 * losing the persistent error log on the adapter. If the adapter is 7481 * reset while it is writing to the flash on the adapter, the flash 7482 * segment will have bad ECC and be zeroed. 7483 * 7484 * Return value: 7485 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7486 **/ 7487static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 7488{ 7489 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7490 int rc = IPR_RC_JOB_RETURN; 7491 7492 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 7493 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7494 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7495 } else { 7496 ipr_cmd->job_step = ioa_cfg->reset; 7497 rc = IPR_RC_JOB_CONTINUE; 7498 } 7499 7500 return rc; 7501} 7502 7503/** 7504 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 7505 * @ipr_cmd: ipr command struct 7506 * 7507 * Description: This function alerts the adapter that it will be reset. 7508 * If memory space is not currently enabled, proceed directly 7509 * to running BIST on the adapter. The timer must always be started 7510 * so we guarantee we do not run BIST from ipr_isr. 7511 * 7512 * Return value: 7513 * IPR_RC_JOB_RETURN 7514 **/ 7515static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 7516{ 7517 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7518 u16 cmd_reg; 7519 int rc; 7520 7521 ENTER; 7522 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 7523 7524 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 7525 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 7526 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 7527 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 7528 } else { 7529 ipr_cmd->job_step = ioa_cfg->reset; 7530 } 7531 7532 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7533 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7534 7535 LEAVE; 7536 return IPR_RC_JOB_RETURN; 7537} 7538 7539/** 7540 * ipr_reset_ucode_download_done - Microcode download completion 7541 * @ipr_cmd: ipr command struct 7542 * 7543 * Description: This function unmaps the microcode download buffer. 7544 * 7545 * Return value: 7546 * IPR_RC_JOB_CONTINUE 7547 **/ 7548static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 7549{ 7550 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7551 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7552 7553 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 7554 sglist->num_sg, DMA_TO_DEVICE); 7555 7556 ipr_cmd->job_step = ipr_reset_alert; 7557 return IPR_RC_JOB_CONTINUE; 7558} 7559 7560/** 7561 * ipr_reset_ucode_download - Download microcode to the adapter 7562 * @ipr_cmd: ipr command struct 7563 * 7564 * Description: This function checks to see if it there is microcode 7565 * to download to the adapter. If there is, a download is performed. 7566 * 7567 * Return value: 7568 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7569 **/ 7570static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 7571{ 7572 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7573 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7574 7575 ENTER; 7576 ipr_cmd->job_step = ipr_reset_alert; 7577 7578 if (!sglist) 7579 return IPR_RC_JOB_CONTINUE; 7580 7581 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7582 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7583 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 7584 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 7585 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 7586 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 7587 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 7588 7589 if (ioa_cfg->sis64) 7590 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 7591 else 7592 ipr_build_ucode_ioadl(ipr_cmd, sglist); 7593 ipr_cmd->job_step = ipr_reset_ucode_download_done; 7594 7595 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7596 IPR_WRITE_BUFFER_TIMEOUT); 7597 7598 LEAVE; 7599 return IPR_RC_JOB_RETURN; 7600} 7601 7602/** 7603 * ipr_reset_shutdown_ioa - Shutdown the adapter 7604 * @ipr_cmd: ipr command struct 7605 * 7606 * Description: This function issues an adapter shutdown of the 7607 * specified type to the specified adapter as part of the 7608 * adapter reset job. 7609 * 7610 * Return value: 7611 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7612 **/ 7613static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 7614{ 7615 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7616 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 7617 unsigned long timeout; 7618 int rc = IPR_RC_JOB_CONTINUE; 7619 7620 ENTER; 7621 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 7622 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7623 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7624 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 7625 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 7626 7627 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 7628 timeout = IPR_SHUTDOWN_TIMEOUT; 7629 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 7630 timeout = IPR_INTERNAL_TIMEOUT; 7631 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7632 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 7633 else 7634 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 7635 7636 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 7637 7638 rc = IPR_RC_JOB_RETURN; 7639 ipr_cmd->job_step = ipr_reset_ucode_download; 7640 } else 7641 ipr_cmd->job_step = ipr_reset_alert; 7642 7643 LEAVE; 7644 return rc; 7645} 7646 7647/** 7648 * ipr_reset_ioa_job - Adapter reset job 7649 * @ipr_cmd: ipr command struct 7650 * 7651 * Description: This function is the job router for the adapter reset job. 7652 * 7653 * Return value: 7654 * none 7655 **/ 7656static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 7657{ 7658 u32 rc, ioasc; 7659 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7660 7661 do { 7662 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 7663 7664 if (ioa_cfg->reset_cmd != ipr_cmd) { 7665 /* 7666 * We are doing nested adapter resets and this is 7667 * not the current reset job. 7668 */ 7669 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7670 return; 7671 } 7672 7673 if (IPR_IOASC_SENSE_KEY(ioasc)) { 7674 rc = ipr_cmd->job_step_failed(ipr_cmd); 7675 if (rc == IPR_RC_JOB_RETURN) 7676 return; 7677 } 7678 7679 ipr_reinit_ipr_cmnd(ipr_cmd); 7680 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 7681 rc = ipr_cmd->job_step(ipr_cmd); 7682 } while(rc == IPR_RC_JOB_CONTINUE); 7683} 7684 7685/** 7686 * _ipr_initiate_ioa_reset - Initiate an adapter reset 7687 * @ioa_cfg: ioa config struct 7688 * @job_step: first job step of reset job 7689 * @shutdown_type: shutdown type 7690 * 7691 * Description: This function will initiate the reset of the given adapter 7692 * starting at the selected job step. 7693 * If the caller needs to wait on the completion of the reset, 7694 * the caller must sleep on the reset_wait_q. 7695 * 7696 * Return value: 7697 * none 7698 **/ 7699static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7700 int (*job_step) (struct ipr_cmnd *), 7701 enum ipr_shutdown_type shutdown_type) 7702{ 7703 struct ipr_cmnd *ipr_cmd; 7704 7705 ioa_cfg->in_reset_reload = 1; 7706 ioa_cfg->allow_cmds = 0; 7707 scsi_block_requests(ioa_cfg->host); 7708 7709 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 7710 ioa_cfg->reset_cmd = ipr_cmd; 7711 ipr_cmd->job_step = job_step; 7712 ipr_cmd->u.shutdown_type = shutdown_type; 7713 7714 ipr_reset_ioa_job(ipr_cmd); 7715} 7716 7717/** 7718 * ipr_initiate_ioa_reset - Initiate an adapter reset 7719 * @ioa_cfg: ioa config struct 7720 * @shutdown_type: shutdown type 7721 * 7722 * Description: This function will initiate the reset of the given adapter. 7723 * If the caller needs to wait on the completion of the reset, 7724 * the caller must sleep on the reset_wait_q. 7725 * 7726 * Return value: 7727 * none 7728 **/ 7729static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7730 enum ipr_shutdown_type shutdown_type) 7731{ 7732 if (ioa_cfg->ioa_is_dead) 7733 return; 7734 7735 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 7736 ioa_cfg->sdt_state = ABORT_DUMP; 7737 7738 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 7739 dev_err(&ioa_cfg->pdev->dev, 7740 "IOA taken offline - error recovery failed\n"); 7741 7742 ioa_cfg->reset_retries = 0; 7743 ioa_cfg->ioa_is_dead = 1; 7744 7745 if (ioa_cfg->in_ioa_bringdown) { 7746 ioa_cfg->reset_cmd = NULL; 7747 ioa_cfg->in_reset_reload = 0; 7748 ipr_fail_all_ops(ioa_cfg); 7749 wake_up_all(&ioa_cfg->reset_wait_q); 7750 7751 spin_unlock_irq(ioa_cfg->host->host_lock); 7752 scsi_unblock_requests(ioa_cfg->host); 7753 spin_lock_irq(ioa_cfg->host->host_lock); 7754 return; 7755 } else { 7756 ioa_cfg->in_ioa_bringdown = 1; 7757 shutdown_type = IPR_SHUTDOWN_NONE; 7758 } 7759 } 7760 7761 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 7762 shutdown_type); 7763} 7764 7765/** 7766 * ipr_reset_freeze - Hold off all I/O activity 7767 * @ipr_cmd: ipr command struct 7768 * 7769 * Description: If the PCI slot is frozen, hold off all I/O 7770 * activity; then, as soon as the slot is available again, 7771 * initiate an adapter reset. 7772 */ 7773static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 7774{ 7775 /* Disallow new interrupts, avoid loop */ 7776 ipr_cmd->ioa_cfg->allow_interrupts = 0; 7777 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7778 ipr_cmd->done = ipr_reset_ioa_job; 7779 return IPR_RC_JOB_RETURN; 7780} 7781 7782/** 7783 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 7784 * @pdev: PCI device struct 7785 * 7786 * Description: This routine is called to tell us that the PCI bus 7787 * is down. Can't do anything here, except put the device driver 7788 * into a holding pattern, waiting for the PCI bus to come back. 7789 */ 7790static void ipr_pci_frozen(struct pci_dev *pdev) 7791{ 7792 unsigned long flags = 0; 7793 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7794 7795 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7796 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 7797 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7798} 7799 7800/** 7801 * ipr_pci_slot_reset - Called when PCI slot has been reset. 7802 * @pdev: PCI device struct 7803 * 7804 * Description: This routine is called by the pci error recovery 7805 * code after the PCI slot has been reset, just before we 7806 * should resume normal operations. 7807 */ 7808static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 7809{ 7810 unsigned long flags = 0; 7811 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7812 7813 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7814 if (ioa_cfg->needs_warm_reset) 7815 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7816 else 7817 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 7818 IPR_SHUTDOWN_NONE); 7819 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7820 return PCI_ERS_RESULT_RECOVERED; 7821} 7822 7823/** 7824 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 7825 * @pdev: PCI device struct 7826 * 7827 * Description: This routine is called when the PCI bus has 7828 * permanently failed. 7829 */ 7830static void ipr_pci_perm_failure(struct pci_dev *pdev) 7831{ 7832 unsigned long flags = 0; 7833 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7834 7835 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7836 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7837 ioa_cfg->sdt_state = ABORT_DUMP; 7838 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 7839 ioa_cfg->in_ioa_bringdown = 1; 7840 ioa_cfg->allow_cmds = 0; 7841 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7842 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7843} 7844 7845/** 7846 * ipr_pci_error_detected - Called when a PCI error is detected. 7847 * @pdev: PCI device struct 7848 * @state: PCI channel state 7849 * 7850 * Description: Called when a PCI error is detected. 7851 * 7852 * Return value: 7853 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7854 */ 7855static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7856 pci_channel_state_t state) 7857{ 7858 switch (state) { 7859 case pci_channel_io_frozen: 7860 ipr_pci_frozen(pdev); 7861 return PCI_ERS_RESULT_NEED_RESET; 7862 case pci_channel_io_perm_failure: 7863 ipr_pci_perm_failure(pdev); 7864 return PCI_ERS_RESULT_DISCONNECT; 7865 break; 7866 default: 7867 break; 7868 } 7869 return PCI_ERS_RESULT_NEED_RESET; 7870} 7871 7872/** 7873 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7874 * @ioa_cfg: ioa cfg struct 7875 * 7876 * Description: This is the second phase of adapter intialization 7877 * This function takes care of initilizing the adapter to the point 7878 * where it can accept new commands. 7879 7880 * Return value: 7881 * 0 on success / -EIO on failure 7882 **/ 7883static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7884{ 7885 int rc = 0; 7886 unsigned long host_lock_flags = 0; 7887 7888 ENTER; 7889 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7890 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7891 if (ioa_cfg->needs_hard_reset) { 7892 ioa_cfg->needs_hard_reset = 0; 7893 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7894 } else 7895 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7896 IPR_SHUTDOWN_NONE); 7897 7898 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7899 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7900 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7901 7902 if (ioa_cfg->ioa_is_dead) { 7903 rc = -EIO; 7904 } else if (ipr_invalid_adapter(ioa_cfg)) { 7905 if (!ipr_testmode) 7906 rc = -EIO; 7907 7908 dev_err(&ioa_cfg->pdev->dev, 7909 "Adapter not supported in this hardware configuration.\n"); 7910 } 7911 7912 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7913 7914 LEAVE; 7915 return rc; 7916} 7917 7918/** 7919 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7920 * @ioa_cfg: ioa config struct 7921 * 7922 * Return value: 7923 * none 7924 **/ 7925static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7926{ 7927 int i; 7928 7929 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7930 if (ioa_cfg->ipr_cmnd_list[i]) 7931 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7932 ioa_cfg->ipr_cmnd_list[i], 7933 ioa_cfg->ipr_cmnd_list_dma[i]); 7934 7935 ioa_cfg->ipr_cmnd_list[i] = NULL; 7936 } 7937 7938 if (ioa_cfg->ipr_cmd_pool) 7939 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7940 7941 ioa_cfg->ipr_cmd_pool = NULL; 7942} 7943 7944/** 7945 * ipr_free_mem - Frees memory allocated for an adapter 7946 * @ioa_cfg: ioa cfg struct 7947 * 7948 * Return value: 7949 * nothing 7950 **/ 7951static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7952{ 7953 int i; 7954 7955 kfree(ioa_cfg->res_entries); 7956 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7957 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7958 ipr_free_cmd_blks(ioa_cfg); 7959 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7960 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7961 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, 7962 ioa_cfg->u.cfg_table, 7963 ioa_cfg->cfg_table_dma); 7964 7965 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7966 pci_free_consistent(ioa_cfg->pdev, 7967 sizeof(struct ipr_hostrcb), 7968 ioa_cfg->hostrcb[i], 7969 ioa_cfg->hostrcb_dma[i]); 7970 } 7971 7972 ipr_free_dump(ioa_cfg); 7973 kfree(ioa_cfg->trace); 7974} 7975 7976/** 7977 * ipr_free_all_resources - Free all allocated resources for an adapter. 7978 * @ipr_cmd: ipr command struct 7979 * 7980 * This function frees all allocated resources for the 7981 * specified adapter. 7982 * 7983 * Return value: 7984 * none 7985 **/ 7986static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 7987{ 7988 struct pci_dev *pdev = ioa_cfg->pdev; 7989 7990 ENTER; 7991 free_irq(pdev->irq, ioa_cfg); 7992 pci_disable_msi(pdev); 7993 iounmap(ioa_cfg->hdw_dma_regs); 7994 pci_release_regions(pdev); 7995 ipr_free_mem(ioa_cfg); 7996 scsi_host_put(ioa_cfg->host); 7997 pci_disable_device(pdev); 7998 LEAVE; 7999} 8000 8001/** 8002 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 8003 * @ioa_cfg: ioa config struct 8004 * 8005 * Return value: 8006 * 0 on success / -ENOMEM on allocation failure 8007 **/ 8008static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8009{ 8010 struct ipr_cmnd *ipr_cmd; 8011 struct ipr_ioarcb *ioarcb; 8012 dma_addr_t dma_addr; 8013 int i; 8014 8015 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 8016 sizeof(struct ipr_cmnd), 16, 0); 8017 8018 if (!ioa_cfg->ipr_cmd_pool) 8019 return -ENOMEM; 8020 8021 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8022 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 8023 8024 if (!ipr_cmd) { 8025 ipr_free_cmd_blks(ioa_cfg); 8026 return -ENOMEM; 8027 } 8028 8029 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 8030 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 8031 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 8032 8033 ioarcb = &ipr_cmd->ioarcb; 8034 ipr_cmd->dma_addr = dma_addr; 8035 if (ioa_cfg->sis64) 8036 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 8037 else 8038 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 8039 8040 ioarcb->host_response_handle = cpu_to_be32(i << 2); 8041 if (ioa_cfg->sis64) { 8042 ioarcb->u.sis64_addr_data.data_ioadl_addr = 8043 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 8044 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 8045 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 8046 } else { 8047 ioarcb->write_ioadl_addr = 8048 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 8049 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 8050 ioarcb->ioasa_host_pci_addr = 8051 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 8052 } 8053 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 8054 ipr_cmd->cmd_index = i; 8055 ipr_cmd->ioa_cfg = ioa_cfg; 8056 ipr_cmd->sense_buffer_dma = dma_addr + 8057 offsetof(struct ipr_cmnd, sense_buffer); 8058 8059 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8060 } 8061 8062 return 0; 8063} 8064 8065/** 8066 * ipr_alloc_mem - Allocate memory for an adapter 8067 * @ioa_cfg: ioa config struct 8068 * 8069 * Return value: 8070 * 0 on success / non-zero for error 8071 **/ 8072static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 8073{ 8074 struct pci_dev *pdev = ioa_cfg->pdev; 8075 int i, rc = -ENOMEM; 8076 8077 ENTER; 8078 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 8079 ioa_cfg->max_devs_supported, GFP_KERNEL); 8080 8081 if (!ioa_cfg->res_entries) 8082 goto out; 8083 8084 if (ioa_cfg->sis64) { 8085 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * 8086 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8087 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * 8088 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8089 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * 8090 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8091 } 8092 8093 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8094 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8095 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8096 } 8097 8098 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 8099 sizeof(struct ipr_misc_cbs), 8100 &ioa_cfg->vpd_cbs_dma); 8101 8102 if (!ioa_cfg->vpd_cbs) 8103 goto out_free_res_entries; 8104 8105 if (ipr_alloc_cmd_blks(ioa_cfg)) 8106 goto out_free_vpd_cbs; 8107 8108 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 8109 sizeof(u32) * IPR_NUM_CMD_BLKS, 8110 &ioa_cfg->host_rrq_dma); 8111 8112 if (!ioa_cfg->host_rrq) 8113 goto out_ipr_free_cmd_blocks; 8114 8115 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 8116 ioa_cfg->cfg_table_size, 8117 &ioa_cfg->cfg_table_dma); 8118 8119 if (!ioa_cfg->u.cfg_table) 8120 goto out_free_host_rrq; 8121 8122 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8123 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 8124 sizeof(struct ipr_hostrcb), 8125 &ioa_cfg->hostrcb_dma[i]); 8126 8127 if (!ioa_cfg->hostrcb[i]) 8128 goto out_free_hostrcb_dma; 8129 8130 ioa_cfg->hostrcb[i]->hostrcb_dma = 8131 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 8132 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 8133 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 8134 } 8135 8136 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 8137 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 8138 8139 if (!ioa_cfg->trace) 8140 goto out_free_hostrcb_dma; 8141 8142 rc = 0; 8143out: 8144 LEAVE; 8145 return rc; 8146 8147out_free_hostrcb_dma: 8148 while (i-- > 0) { 8149 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 8150 ioa_cfg->hostrcb[i], 8151 ioa_cfg->hostrcb_dma[i]); 8152 } 8153 pci_free_consistent(pdev, ioa_cfg->cfg_table_size, 8154 ioa_cfg->u.cfg_table, 8155 ioa_cfg->cfg_table_dma); 8156out_free_host_rrq: 8157 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8158 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8159out_ipr_free_cmd_blocks: 8160 ipr_free_cmd_blks(ioa_cfg); 8161out_free_vpd_cbs: 8162 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 8163 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8164out_free_res_entries: 8165 kfree(ioa_cfg->res_entries); 8166 goto out; 8167} 8168 8169/** 8170 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 8171 * @ioa_cfg: ioa config struct 8172 * 8173 * Return value: 8174 * none 8175 **/ 8176static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 8177{ 8178 int i; 8179 8180 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 8181 ioa_cfg->bus_attr[i].bus = i; 8182 ioa_cfg->bus_attr[i].qas_enabled = 0; 8183 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 8184 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 8185 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 8186 else 8187 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 8188 } 8189} 8190 8191/** 8192 * ipr_init_ioa_cfg - Initialize IOA config struct 8193 * @ioa_cfg: ioa config struct 8194 * @host: scsi host struct 8195 * @pdev: PCI dev struct 8196 * 8197 * Return value: 8198 * none 8199 **/ 8200static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 8201 struct Scsi_Host *host, struct pci_dev *pdev) 8202{ 8203 const struct ipr_interrupt_offsets *p; 8204 struct ipr_interrupts *t; 8205 void __iomem *base; 8206 8207 ioa_cfg->host = host; 8208 ioa_cfg->pdev = pdev; 8209 ioa_cfg->log_level = ipr_log_level; 8210 ioa_cfg->doorbell = IPR_DOORBELL; 8211 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 8212 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 8213 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 8214 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 8215 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 8216 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 8217 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 8218 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 8219 8220 INIT_LIST_HEAD(&ioa_cfg->free_q); 8221 INIT_LIST_HEAD(&ioa_cfg->pending_q); 8222 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 8223 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 8224 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 8225 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 8226 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 8227 init_waitqueue_head(&ioa_cfg->reset_wait_q); 8228 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8229 ioa_cfg->sdt_state = INACTIVE; 8230 8231 ipr_initialize_bus_attr(ioa_cfg); 8232 ioa_cfg->max_devs_supported = ipr_max_devs; 8233 8234 if (ioa_cfg->sis64) { 8235 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 8236 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 8237 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 8238 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 8239 } else { 8240 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 8241 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 8242 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 8243 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 8244 } 8245 host->max_channel = IPR_MAX_BUS_TO_SCAN; 8246 host->unique_id = host->host_no; 8247 host->max_cmd_len = IPR_MAX_CDB_LEN; 8248 pci_set_drvdata(pdev, ioa_cfg); 8249 8250 p = &ioa_cfg->chip_cfg->regs; 8251 t = &ioa_cfg->regs; 8252 base = ioa_cfg->hdw_dma_regs; 8253 8254 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 8255 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 8256 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 8257 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 8258 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 8259 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 8260 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 8261 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 8262 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 8263 t->ioarrin_reg = base + p->ioarrin_reg; 8264 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 8265 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 8266 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 8267 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 8268 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 8269 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 8270 8271 if (ioa_cfg->sis64) { 8272 t->init_feedback_reg = base + p->init_feedback_reg; 8273 t->dump_addr_reg = base + p->dump_addr_reg; 8274 t->dump_data_reg = base + p->dump_data_reg; 8275 } 8276} 8277 8278/** 8279 * ipr_get_chip_info - Find adapter chip information 8280 * @dev_id: PCI device id struct 8281 * 8282 * Return value: 8283 * ptr to chip information on success / NULL on failure 8284 **/ 8285static const struct ipr_chip_t * __devinit 8286ipr_get_chip_info(const struct pci_device_id *dev_id) 8287{ 8288 int i; 8289 8290 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 8291 if (ipr_chip[i].vendor == dev_id->vendor && 8292 ipr_chip[i].device == dev_id->device) 8293 return &ipr_chip[i]; 8294 return NULL; 8295} 8296 8297/** 8298 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 8299 * @pdev: PCI device struct 8300 * 8301 * Description: Simply set the msi_received flag to 1 indicating that 8302 * Message Signaled Interrupts are supported. 8303 * 8304 * Return value: 8305 * 0 on success / non-zero on failure 8306 **/ 8307static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) 8308{ 8309 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 8310 unsigned long lock_flags = 0; 8311 irqreturn_t rc = IRQ_HANDLED; 8312 8313 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8314 8315 ioa_cfg->msi_received = 1; 8316 wake_up(&ioa_cfg->msi_wait_q); 8317 8318 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8319 return rc; 8320} 8321 8322/** 8323 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 8324 * @pdev: PCI device struct 8325 * 8326 * Description: The return value from pci_enable_msi() can not always be 8327 * trusted. This routine sets up and initiates a test interrupt to determine 8328 * if the interrupt is received via the ipr_test_intr() service routine. 8329 * If the tests fails, the driver will fall back to LSI. 8330 * 8331 * Return value: 8332 * 0 on success / non-zero on failure 8333 **/ 8334static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, 8335 struct pci_dev *pdev) 8336{ 8337 int rc; 8338 volatile u32 int_reg; 8339 unsigned long lock_flags = 0; 8340 8341 ENTER; 8342 8343 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8344 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8345 ioa_cfg->msi_received = 0; 8346 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8347 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 8348 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8349 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8350 8351 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 8352 if (rc) { 8353 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); 8354 return rc; 8355 } else if (ipr_debug) 8356 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); 8357 8358 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 8359 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8360 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 8361 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8362 8363 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8364 if (!ioa_cfg->msi_received) { 8365 /* MSI test failed */ 8366 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 8367 rc = -EOPNOTSUPP; 8368 } else if (ipr_debug) 8369 dev_info(&pdev->dev, "MSI test succeeded.\n"); 8370 8371 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8372 8373 free_irq(pdev->irq, ioa_cfg); 8374 8375 LEAVE; 8376 8377 return rc; 8378} 8379 8380/** 8381 * ipr_probe_ioa - Allocates memory and does first stage of initialization 8382 * @pdev: PCI device struct 8383 * @dev_id: PCI device id struct 8384 * 8385 * Return value: 8386 * 0 on success / non-zero on failure 8387 **/ 8388static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 8389 const struct pci_device_id *dev_id) 8390{ 8391 struct ipr_ioa_cfg *ioa_cfg; 8392 struct Scsi_Host *host; 8393 unsigned long ipr_regs_pci; 8394 void __iomem *ipr_regs; 8395 int rc = PCIBIOS_SUCCESSFUL; 8396 volatile u32 mask, uproc, interrupts; 8397 8398 ENTER; 8399 8400 if ((rc = pci_enable_device(pdev))) { 8401 dev_err(&pdev->dev, "Cannot enable adapter\n"); 8402 goto out; 8403 } 8404 8405 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 8406 8407 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 8408 8409 if (!host) { 8410 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 8411 rc = -ENOMEM; 8412 goto out_disable; 8413 } 8414 8415 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 8416 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 8417 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 8418 sata_port_info.flags, &ipr_sata_ops); 8419 8420 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 8421 8422 if (!ioa_cfg->ipr_chip) { 8423 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 8424 dev_id->vendor, dev_id->device); 8425 goto out_scsi_host_put; 8426 } 8427 8428 /* set SIS 32 or SIS 64 */ 8429 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 8430 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 8431 8432 if (ipr_transop_timeout) 8433 ioa_cfg->transop_timeout = ipr_transop_timeout; 8434 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 8435 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 8436 else 8437 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 8438 8439 ioa_cfg->revid = pdev->revision; 8440 8441 ipr_regs_pci = pci_resource_start(pdev, 0); 8442 8443 rc = pci_request_regions(pdev, IPR_NAME); 8444 if (rc < 0) { 8445 dev_err(&pdev->dev, 8446 "Couldn't register memory range of registers\n"); 8447 goto out_scsi_host_put; 8448 } 8449 8450 ipr_regs = pci_ioremap_bar(pdev, 0); 8451 8452 if (!ipr_regs) { 8453 dev_err(&pdev->dev, 8454 "Couldn't map memory range of registers\n"); 8455 rc = -ENOMEM; 8456 goto out_release_regions; 8457 } 8458 8459 ioa_cfg->hdw_dma_regs = ipr_regs; 8460 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 8461 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 8462 8463 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 8464 8465 pci_set_master(pdev); 8466 8467 if (ioa_cfg->sis64) { 8468 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 8469 if (rc < 0) { 8470 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); 8471 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8472 } 8473 8474 } else 8475 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8476 8477 if (rc < 0) { 8478 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 8479 goto cleanup_nomem; 8480 } 8481 8482 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 8483 ioa_cfg->chip_cfg->cache_line_size); 8484 8485 if (rc != PCIBIOS_SUCCESSFUL) { 8486 dev_err(&pdev->dev, "Write of cache line size failed\n"); 8487 rc = -EIO; 8488 goto cleanup_nomem; 8489 } 8490 8491 /* Enable MSI style interrupts if they are supported. */ 8492 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { 8493 rc = ipr_test_msi(ioa_cfg, pdev); 8494 if (rc == -EOPNOTSUPP) 8495 pci_disable_msi(pdev); 8496 else if (rc) 8497 goto out_msi_disable; 8498 else 8499 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); 8500 } else if (ipr_debug) 8501 dev_info(&pdev->dev, "Cannot enable MSI.\n"); 8502 8503 /* Save away PCI config space for use following IOA reset */ 8504 rc = pci_save_state(pdev); 8505 8506 if (rc != PCIBIOS_SUCCESSFUL) { 8507 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 8508 rc = -EIO; 8509 goto cleanup_nomem; 8510 } 8511 8512 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 8513 goto cleanup_nomem; 8514 8515 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 8516 goto cleanup_nomem; 8517 8518 if (ioa_cfg->sis64) 8519 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 8520 + ((sizeof(struct ipr_config_table_entry64) 8521 * ioa_cfg->max_devs_supported))); 8522 else 8523 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 8524 + ((sizeof(struct ipr_config_table_entry) 8525 * ioa_cfg->max_devs_supported))); 8526 8527 rc = ipr_alloc_mem(ioa_cfg); 8528 if (rc < 0) { 8529 dev_err(&pdev->dev, 8530 "Couldn't allocate enough memory for device driver!\n"); 8531 goto cleanup_nomem; 8532 } 8533 8534 /* 8535 * If HRRQ updated interrupt is not masked, or reset alert is set, 8536 * the card is in an unknown state and needs a hard reset 8537 */ 8538 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 8539 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 8540 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 8541 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 8542 ioa_cfg->needs_hard_reset = 1; 8543 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 8544 ioa_cfg->needs_hard_reset = 1; 8545 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 8546 ioa_cfg->ioa_unit_checked = 1; 8547 8548 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8549 rc = request_irq(pdev->irq, ipr_isr, 8550 ioa_cfg->msi_received ? 0 : IRQF_SHARED, 8551 IPR_NAME, ioa_cfg); 8552 8553 if (rc) { 8554 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 8555 pdev->irq, rc); 8556 goto cleanup_nolog; 8557 } 8558 8559 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 8560 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 8561 ioa_cfg->needs_warm_reset = 1; 8562 ioa_cfg->reset = ipr_reset_slot_reset; 8563 } else 8564 ioa_cfg->reset = ipr_reset_start_bist; 8565 8566 spin_lock(&ipr_driver_lock); 8567 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 8568 spin_unlock(&ipr_driver_lock); 8569 8570 LEAVE; 8571out: 8572 return rc; 8573 8574cleanup_nolog: 8575 ipr_free_mem(ioa_cfg); 8576cleanup_nomem: 8577 iounmap(ipr_regs); 8578out_msi_disable: 8579 pci_disable_msi(pdev); 8580out_release_regions: 8581 pci_release_regions(pdev); 8582out_scsi_host_put: 8583 scsi_host_put(host); 8584out_disable: 8585 pci_disable_device(pdev); 8586 goto out; 8587} 8588 8589/** 8590 * ipr_scan_vsets - Scans for VSET devices 8591 * @ioa_cfg: ioa config struct 8592 * 8593 * Description: Since the VSET resources do not follow SAM in that we can have 8594 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 8595 * 8596 * Return value: 8597 * none 8598 **/ 8599static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 8600{ 8601 int target, lun; 8602 8603 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 8604 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 8605 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 8606} 8607 8608/** 8609 * ipr_initiate_ioa_bringdown - Bring down an adapter 8610 * @ioa_cfg: ioa config struct 8611 * @shutdown_type: shutdown type 8612 * 8613 * Description: This function will initiate bringing down the adapter. 8614 * This consists of issuing an IOA shutdown to the adapter 8615 * to flush the cache, and running BIST. 8616 * If the caller needs to wait on the completion of the reset, 8617 * the caller must sleep on the reset_wait_q. 8618 * 8619 * Return value: 8620 * none 8621 **/ 8622static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 8623 enum ipr_shutdown_type shutdown_type) 8624{ 8625 ENTER; 8626 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8627 ioa_cfg->sdt_state = ABORT_DUMP; 8628 ioa_cfg->reset_retries = 0; 8629 ioa_cfg->in_ioa_bringdown = 1; 8630 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 8631 LEAVE; 8632} 8633 8634/** 8635 * __ipr_remove - Remove a single adapter 8636 * @pdev: pci device struct 8637 * 8638 * Adapter hot plug remove entry point. 8639 * 8640 * Return value: 8641 * none 8642 **/ 8643static void __ipr_remove(struct pci_dev *pdev) 8644{ 8645 unsigned long host_lock_flags = 0; 8646 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8647 ENTER; 8648 8649 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8650 while(ioa_cfg->in_reset_reload) { 8651 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8652 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8653 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8654 } 8655 8656 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8657 8658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8659 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8660 flush_scheduled_work(); 8661 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8662 8663 spin_lock(&ipr_driver_lock); 8664 list_del(&ioa_cfg->queue); 8665 spin_unlock(&ipr_driver_lock); 8666 8667 if (ioa_cfg->sdt_state == ABORT_DUMP) 8668 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8669 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8670 8671 ipr_free_all_resources(ioa_cfg); 8672 8673 LEAVE; 8674} 8675 8676/** 8677 * ipr_remove - IOA hot plug remove entry point 8678 * @pdev: pci device struct 8679 * 8680 * Adapter hot plug remove entry point. 8681 * 8682 * Return value: 8683 * none 8684 **/ 8685static void __devexit ipr_remove(struct pci_dev *pdev) 8686{ 8687 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8688 8689 ENTER; 8690 8691 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8692 &ipr_trace_attr); 8693 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 8694 &ipr_dump_attr); 8695 scsi_remove_host(ioa_cfg->host); 8696 8697 __ipr_remove(pdev); 8698 8699 LEAVE; 8700} 8701 8702/** 8703 * ipr_probe - Adapter hot plug add entry point 8704 * 8705 * Return value: 8706 * 0 on success / non-zero on failure 8707 **/ 8708static int __devinit ipr_probe(struct pci_dev *pdev, 8709 const struct pci_device_id *dev_id) 8710{ 8711 struct ipr_ioa_cfg *ioa_cfg; 8712 int rc; 8713 8714 rc = ipr_probe_ioa(pdev, dev_id); 8715 8716 if (rc) 8717 return rc; 8718 8719 ioa_cfg = pci_get_drvdata(pdev); 8720 rc = ipr_probe_ioa_part2(ioa_cfg); 8721 8722 if (rc) { 8723 __ipr_remove(pdev); 8724 return rc; 8725 } 8726 8727 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 8728 8729 if (rc) { 8730 __ipr_remove(pdev); 8731 return rc; 8732 } 8733 8734 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 8735 &ipr_trace_attr); 8736 8737 if (rc) { 8738 scsi_remove_host(ioa_cfg->host); 8739 __ipr_remove(pdev); 8740 return rc; 8741 } 8742 8743 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 8744 &ipr_dump_attr); 8745 8746 if (rc) { 8747 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8748 &ipr_trace_attr); 8749 scsi_remove_host(ioa_cfg->host); 8750 __ipr_remove(pdev); 8751 return rc; 8752 } 8753 8754 scsi_scan_host(ioa_cfg->host); 8755 ipr_scan_vsets(ioa_cfg); 8756 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 8757 ioa_cfg->allow_ml_add_del = 1; 8758 ioa_cfg->host->max_channel = IPR_VSET_BUS; 8759 schedule_work(&ioa_cfg->work_q); 8760 return 0; 8761} 8762 8763/** 8764 * ipr_shutdown - Shutdown handler. 8765 * @pdev: pci device struct 8766 * 8767 * This function is invoked upon system shutdown/reboot. It will issue 8768 * an adapter shutdown to the adapter to flush the write cache. 8769 * 8770 * Return value: 8771 * none 8772 **/ 8773static void ipr_shutdown(struct pci_dev *pdev) 8774{ 8775 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8776 unsigned long lock_flags = 0; 8777 8778 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8779 while(ioa_cfg->in_reset_reload) { 8780 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8781 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8782 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8783 } 8784 8785 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8786 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8787 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8788} 8789 8790static struct pci_device_id ipr_pci_table[] __devinitdata = { 8791 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8792 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 8793 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8794 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 8795 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8796 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 8797 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8798 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 8799 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8800 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 8801 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8802 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 8803 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8804 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 8805 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8806 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 8807 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8808 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8809 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 8810 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8811 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 8812 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8813 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8814 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 8815 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8816 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 8818 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8819 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 8820 IPR_USE_LONG_TRANSOP_TIMEOUT}, 8821 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8822 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 8823 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8824 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 8826 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 8829 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8830 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8831 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 8832 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8833 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 8834 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 8835 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 8836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 8837 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8838 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 8839 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8840 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 8841 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8842 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8843 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 8844 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8845 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E, 8846 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 8847 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8848 { } 8849}; 8850MODULE_DEVICE_TABLE(pci, ipr_pci_table); 8851 8852static struct pci_error_handlers ipr_err_handler = { 8853 .error_detected = ipr_pci_error_detected, 8854 .slot_reset = ipr_pci_slot_reset, 8855}; 8856 8857static struct pci_driver ipr_driver = { 8858 .name = IPR_NAME, 8859 .id_table = ipr_pci_table, 8860 .probe = ipr_probe, 8861 .remove = __devexit_p(ipr_remove), 8862 .shutdown = ipr_shutdown, 8863 .err_handler = &ipr_err_handler, 8864}; 8865 8866/** 8867 * ipr_halt_done - Shutdown prepare completion 8868 * 8869 * Return value: 8870 * none 8871 **/ 8872static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 8873{ 8874 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8875 8876 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8877} 8878 8879/** 8880 * ipr_halt - Issue shutdown prepare to all adapters 8881 * 8882 * Return value: 8883 * NOTIFY_OK on success / NOTIFY_DONE on failure 8884 **/ 8885static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 8886{ 8887 struct ipr_cmnd *ipr_cmd; 8888 struct ipr_ioa_cfg *ioa_cfg; 8889 unsigned long flags = 0; 8890 8891 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 8892 return NOTIFY_DONE; 8893 8894 spin_lock(&ipr_driver_lock); 8895 8896 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 8897 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8898 if (!ioa_cfg->allow_cmds) { 8899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8900 continue; 8901 } 8902 8903 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 8904 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 8905 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 8906 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 8907 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 8908 8909 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 8910 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8911 } 8912 spin_unlock(&ipr_driver_lock); 8913 8914 return NOTIFY_OK; 8915} 8916 8917static struct notifier_block ipr_notifier = { 8918 ipr_halt, NULL, 0 8919}; 8920 8921/** 8922 * ipr_init - Module entry point 8923 * 8924 * Return value: 8925 * 0 on success / negative value on failure 8926 **/ 8927static int __init ipr_init(void) 8928{ 8929 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 8930 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 8931 8932 register_reboot_notifier(&ipr_notifier); 8933 return pci_register_driver(&ipr_driver); 8934} 8935 8936/** 8937 * ipr_exit - Module unload 8938 * 8939 * Module unload entry point. 8940 * 8941 * Return value: 8942 * none 8943 **/ 8944static void __exit ipr_exit(void) 8945{ 8946 unregister_reboot_notifier(&ipr_notifier); 8947 pci_unregister_driver(&ipr_driver); 8948} 8949 8950module_init(ipr_init); 8951module_exit(ipr_exit); 8952