ipr.c revision 438b03311108b05a7b794bcf3941700853c62d1e
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/slab.h> 63#include <linux/ioport.h> 64#include <linux/delay.h> 65#include <linux/pci.h> 66#include <linux/wait.h> 67#include <linux/spinlock.h> 68#include <linux/sched.h> 69#include <linux/interrupt.h> 70#include <linux/blkdev.h> 71#include <linux/firmware.h> 72#include <linux/module.h> 73#include <linux/moduleparam.h> 74#include <linux/libata.h> 75#include <linux/hdreg.h> 76#include <linux/reboot.h> 77#include <linux/stringify.h> 78#include <asm/io.h> 79#include <asm/irq.h> 80#include <asm/processor.h> 81#include <scsi/scsi.h> 82#include <scsi/scsi_host.h> 83#include <scsi/scsi_tcq.h> 84#include <scsi/scsi_eh.h> 85#include <scsi/scsi_cmnd.h> 86#include "ipr.h" 87 88/* 89 * Global Data 90 */ 91static LIST_HEAD(ipr_ioa_head); 92static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 93static unsigned int ipr_max_speed = 1; 94static int ipr_testmode = 0; 95static unsigned int ipr_fastfail = 0; 96static unsigned int ipr_transop_timeout = 0; 97static unsigned int ipr_debug = 0; 98static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; 99static unsigned int ipr_dual_ioa_raid = 1; 100static DEFINE_SPINLOCK(ipr_driver_lock); 101 102/* This table describes the differences between DMA controller chips */ 103static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { 104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ 105 .mailbox = 0x0042C, 106 .cache_line_size = 0x20, 107 { 108 .set_interrupt_mask_reg = 0x0022C, 109 .clr_interrupt_mask_reg = 0x00230, 110 .clr_interrupt_mask_reg32 = 0x00230, 111 .sense_interrupt_mask_reg = 0x0022C, 112 .sense_interrupt_mask_reg32 = 0x0022C, 113 .clr_interrupt_reg = 0x00228, 114 .clr_interrupt_reg32 = 0x00228, 115 .sense_interrupt_reg = 0x00224, 116 .sense_interrupt_reg32 = 0x00224, 117 .ioarrin_reg = 0x00404, 118 .sense_uproc_interrupt_reg = 0x00214, 119 .sense_uproc_interrupt_reg32 = 0x00214, 120 .set_uproc_interrupt_reg = 0x00214, 121 .set_uproc_interrupt_reg32 = 0x00214, 122 .clr_uproc_interrupt_reg = 0x00218, 123 .clr_uproc_interrupt_reg32 = 0x00218 124 } 125 }, 126 { /* Snipe and Scamp */ 127 .mailbox = 0x0052C, 128 .cache_line_size = 0x20, 129 { 130 .set_interrupt_mask_reg = 0x00288, 131 .clr_interrupt_mask_reg = 0x0028C, 132 .clr_interrupt_mask_reg32 = 0x0028C, 133 .sense_interrupt_mask_reg = 0x00288, 134 .sense_interrupt_mask_reg32 = 0x00288, 135 .clr_interrupt_reg = 0x00284, 136 .clr_interrupt_reg32 = 0x00284, 137 .sense_interrupt_reg = 0x00280, 138 .sense_interrupt_reg32 = 0x00280, 139 .ioarrin_reg = 0x00504, 140 .sense_uproc_interrupt_reg = 0x00290, 141 .sense_uproc_interrupt_reg32 = 0x00290, 142 .set_uproc_interrupt_reg = 0x00290, 143 .set_uproc_interrupt_reg32 = 0x00290, 144 .clr_uproc_interrupt_reg = 0x00294, 145 .clr_uproc_interrupt_reg32 = 0x00294 146 } 147 }, 148 { /* CRoC */ 149 .mailbox = 0x00040, 150 .cache_line_size = 0x20, 151 { 152 .set_interrupt_mask_reg = 0x00010, 153 .clr_interrupt_mask_reg = 0x00018, 154 .clr_interrupt_mask_reg32 = 0x0001C, 155 .sense_interrupt_mask_reg = 0x00010, 156 .sense_interrupt_mask_reg32 = 0x00014, 157 .clr_interrupt_reg = 0x00008, 158 .clr_interrupt_reg32 = 0x0000C, 159 .sense_interrupt_reg = 0x00000, 160 .sense_interrupt_reg32 = 0x00004, 161 .ioarrin_reg = 0x00070, 162 .sense_uproc_interrupt_reg = 0x00020, 163 .sense_uproc_interrupt_reg32 = 0x00024, 164 .set_uproc_interrupt_reg = 0x00020, 165 .set_uproc_interrupt_reg32 = 0x00024, 166 .clr_uproc_interrupt_reg = 0x00028, 167 .clr_uproc_interrupt_reg32 = 0x0002C, 168 .init_feedback_reg = 0x0005C, 169 .dump_addr_reg = 0x00064, 170 .dump_data_reg = 0x00068 171 } 172 }, 173}; 174 175static const struct ipr_chip_t ipr_chip[] = { 176 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 177 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 178 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] }, 180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, &ipr_chip_cfg[0] }, 181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] }, 182 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] }, 183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, &ipr_chip_cfg[2] }, 184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, &ipr_chip_cfg[2] } 185}; 186 187static int ipr_max_bus_speeds [] = { 188 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 189}; 190 191MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 192MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 193module_param_named(max_speed, ipr_max_speed, uint, 0); 194MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 195module_param_named(log_level, ipr_log_level, uint, 0); 196MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 197module_param_named(testmode, ipr_testmode, int, 0); 198MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 199module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); 200MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 201module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 202MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 203module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); 204MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 205module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 206MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 207module_param_named(max_devs, ipr_max_devs, int, 0); 208MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " 209 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); 210MODULE_LICENSE("GPL"); 211MODULE_VERSION(IPR_DRIVER_VERSION); 212 213/* A constant array of IOASCs/URCs/Error Messages */ 214static const 215struct ipr_error_table_t ipr_error_table[] = { 216 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 217 "8155: An unknown error was received"}, 218 {0x00330000, 0, 0, 219 "Soft underlength error"}, 220 {0x005A0000, 0, 0, 221 "Command to be cancelled not found"}, 222 {0x00808000, 0, 0, 223 "Qualified success"}, 224 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 225 "FFFE: Soft device bus error recovered by the IOA"}, 226 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 227 "4101: Soft device bus fabric error"}, 228 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, 229 "FFFC: Logical block guard error recovered by the device"}, 230 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, 231 "FFFC: Logical block reference tag error recovered by the device"}, 232 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, 233 "4171: Recovered scatter list tag / sequence number error"}, 234 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, 235 "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, 236 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, 237 "4171: Recovered logical block sequence number error on IOA to Host transfer"}, 238 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, 239 "FFFD: Recovered logical block reference tag error detected by the IOA"}, 240 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, 241 "FFFD: Logical block guard error recovered by the IOA"}, 242 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 243 "FFF9: Device sector reassign successful"}, 244 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 245 "FFF7: Media error recovered by device rewrite procedures"}, 246 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 247 "7001: IOA sector reassignment successful"}, 248 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 249 "FFF9: Soft media error. Sector reassignment recommended"}, 250 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 251 "FFF7: Media error recovered by IOA rewrite procedures"}, 252 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 253 "FF3D: Soft PCI bus error recovered by the IOA"}, 254 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 255 "FFF6: Device hardware error recovered by the IOA"}, 256 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 257 "FFF6: Device hardware error recovered by the device"}, 258 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 259 "FF3D: Soft IOA error recovered by the IOA"}, 260 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 261 "FFFA: Undefined device response recovered by the IOA"}, 262 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 263 "FFF6: Device bus error, message or command phase"}, 264 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 265 "FFFE: Task Management Function failed"}, 266 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 267 "FFF6: Failure prediction threshold exceeded"}, 268 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 269 "8009: Impending cache battery pack failure"}, 270 {0x02040400, 0, 0, 271 "34FF: Disk device format in progress"}, 272 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 273 "9070: IOA requested reset"}, 274 {0x023F0000, 0, 0, 275 "Synchronization required"}, 276 {0x024E0000, 0, 0, 277 "No ready, IOA shutdown"}, 278 {0x025A0000, 0, 0, 279 "Not ready, IOA has been shutdown"}, 280 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 281 "3020: Storage subsystem configuration error"}, 282 {0x03110B00, 0, 0, 283 "FFF5: Medium error, data unreadable, recommend reassign"}, 284 {0x03110C00, 0, 0, 285 "7000: Medium error, data unreadable, do not reassign"}, 286 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 287 "FFF3: Disk media format bad"}, 288 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 289 "3002: Addressed device failed to respond to selection"}, 290 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 291 "3100: Device bus error"}, 292 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 293 "3109: IOA timed out a device command"}, 294 {0x04088000, 0, 0, 295 "3120: SCSI bus is not operational"}, 296 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 297 "4100: Hard device bus fabric error"}, 298 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, 299 "310C: Logical block guard error detected by the device"}, 300 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, 301 "310C: Logical block reference tag error detected by the device"}, 302 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, 303 "4170: Scatter list tag / sequence number error"}, 304 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, 305 "8150: Logical block CRC error on IOA to Host transfer"}, 306 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, 307 "4170: Logical block sequence number error on IOA to Host transfer"}, 308 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, 309 "310D: Logical block reference tag error detected by the IOA"}, 310 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, 311 "310D: Logical block guard error detected by the IOA"}, 312 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 313 "9000: IOA reserved area data check"}, 314 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 315 "9001: IOA reserved area invalid data pattern"}, 316 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 317 "9002: IOA reserved area LRC error"}, 318 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, 319 "Hardware Error, IOA metadata access error"}, 320 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 321 "102E: Out of alternate sectors for disk storage"}, 322 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 323 "FFF4: Data transfer underlength error"}, 324 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 325 "FFF4: Data transfer overlength error"}, 326 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 327 "3400: Logical unit failure"}, 328 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 329 "FFF4: Device microcode is corrupt"}, 330 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 331 "8150: PCI bus error"}, 332 {0x04430000, 1, 0, 333 "Unsupported device bus message received"}, 334 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 335 "FFF4: Disk device problem"}, 336 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 337 "8150: Permanent IOA failure"}, 338 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 339 "3010: Disk device returned wrong response to IOA"}, 340 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 341 "8151: IOA microcode error"}, 342 {0x04448500, 0, 0, 343 "Device bus status error"}, 344 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 345 "8157: IOA error requiring IOA reset to recover"}, 346 {0x04448700, 0, 0, 347 "ATA device status error"}, 348 {0x04490000, 0, 0, 349 "Message reject received from the device"}, 350 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 351 "8008: A permanent cache battery pack failure occurred"}, 352 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 353 "9090: Disk unit has been modified after the last known status"}, 354 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 355 "9081: IOA detected device error"}, 356 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 357 "9082: IOA detected device error"}, 358 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 359 "3110: Device bus error, message or command phase"}, 360 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 361 "3110: SAS Command / Task Management Function failed"}, 362 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 363 "9091: Incorrect hardware configuration change has been detected"}, 364 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 365 "9073: Invalid multi-adapter configuration"}, 366 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 367 "4010: Incorrect connection between cascaded expanders"}, 368 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 369 "4020: Connections exceed IOA design limits"}, 370 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 371 "4030: Incorrect multipath connection"}, 372 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 373 "4110: Unsupported enclosure function"}, 374 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 375 "FFF4: Command to logical unit failed"}, 376 {0x05240000, 1, 0, 377 "Illegal request, invalid request type or request packet"}, 378 {0x05250000, 0, 0, 379 "Illegal request, invalid resource handle"}, 380 {0x05258000, 0, 0, 381 "Illegal request, commands not allowed to this device"}, 382 {0x05258100, 0, 0, 383 "Illegal request, command not allowed to a secondary adapter"}, 384 {0x05258200, 0, 0, 385 "Illegal request, command not allowed to a non-optimized resource"}, 386 {0x05260000, 0, 0, 387 "Illegal request, invalid field in parameter list"}, 388 {0x05260100, 0, 0, 389 "Illegal request, parameter not supported"}, 390 {0x05260200, 0, 0, 391 "Illegal request, parameter value invalid"}, 392 {0x052C0000, 0, 0, 393 "Illegal request, command sequence error"}, 394 {0x052C8000, 1, 0, 395 "Illegal request, dual adapter support not enabled"}, 396 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 397 "9031: Array protection temporarily suspended, protection resuming"}, 398 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 399 "9040: Array protection temporarily suspended, protection resuming"}, 400 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 401 "3140: Device bus not ready to ready transition"}, 402 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 403 "FFFB: SCSI bus was reset"}, 404 {0x06290500, 0, 0, 405 "FFFE: SCSI bus transition to single ended"}, 406 {0x06290600, 0, 0, 407 "FFFE: SCSI bus transition to LVD"}, 408 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 409 "FFFB: SCSI bus was reset by another initiator"}, 410 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 411 "3029: A device replacement has occurred"}, 412 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 413 "9051: IOA cache data exists for a missing or failed device"}, 414 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 415 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 416 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 417 "9025: Disk unit is not supported at its physical location"}, 418 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 419 "3020: IOA detected a SCSI bus configuration error"}, 420 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 421 "3150: SCSI bus configuration error"}, 422 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 423 "9074: Asymmetric advanced function disk configuration"}, 424 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 425 "4040: Incomplete multipath connection between IOA and enclosure"}, 426 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 427 "4041: Incomplete multipath connection between enclosure and device"}, 428 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 429 "9075: Incomplete multipath connection between IOA and remote IOA"}, 430 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 431 "9076: Configuration error, missing remote IOA"}, 432 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 433 "4050: Enclosure does not support a required multipath function"}, 434 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, 435 "4070: Logically bad block written on device"}, 436 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 437 "9041: Array protection temporarily suspended"}, 438 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 439 "9042: Corrupt array parity detected on specified device"}, 440 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 441 "9030: Array no longer protected due to missing or failed disk unit"}, 442 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 443 "9071: Link operational transition"}, 444 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 445 "9072: Link not operational transition"}, 446 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 447 "9032: Array exposed but still protected"}, 448 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 449 "70DD: Device forced failed by disrupt device command"}, 450 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 451 "4061: Multipath redundancy level got better"}, 452 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 453 "4060: Multipath redundancy level got worse"}, 454 {0x07270000, 0, 0, 455 "Failure due to other device"}, 456 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 457 "9008: IOA does not support functions expected by devices"}, 458 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 459 "9010: Cache data associated with attached devices cannot be found"}, 460 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 461 "9011: Cache data belongs to devices other than those attached"}, 462 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 463 "9020: Array missing 2 or more devices with only 1 device present"}, 464 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 465 "9021: Array missing 2 or more devices with 2 or more devices present"}, 466 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 467 "9022: Exposed array is missing a required device"}, 468 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 469 "9023: Array member(s) not at required physical locations"}, 470 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 471 "9024: Array not functional due to present hardware configuration"}, 472 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 473 "9026: Array not functional due to present hardware configuration"}, 474 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 475 "9027: Array is missing a device and parity is out of sync"}, 476 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 477 "9028: Maximum number of arrays already exist"}, 478 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 479 "9050: Required cache data cannot be located for a disk unit"}, 480 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 481 "9052: Cache data exists for a device that has been modified"}, 482 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 483 "9054: IOA resources not available due to previous problems"}, 484 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 485 "9092: Disk unit requires initialization before use"}, 486 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 487 "9029: Incorrect hardware configuration change has been detected"}, 488 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 489 "9060: One or more disk pairs are missing from an array"}, 490 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 491 "9061: One or more disks are missing from an array"}, 492 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 493 "9062: One or more disks are missing from an array"}, 494 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 495 "9063: Maximum number of functional arrays has been exceeded"}, 496 {0x0B260000, 0, 0, 497 "Aborted command, invalid descriptor"}, 498 {0x0B5A0000, 0, 0, 499 "Command terminated by host"} 500}; 501 502static const struct ipr_ses_table_entry ipr_ses_table[] = { 503 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 504 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 505 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 506 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 507 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 508 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 509 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 510 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 511 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 512 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 513 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 514 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 515 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 516}; 517 518/* 519 * Function Prototypes 520 */ 521static int ipr_reset_alert(struct ipr_cmnd *); 522static void ipr_process_ccn(struct ipr_cmnd *); 523static void ipr_process_error(struct ipr_cmnd *); 524static void ipr_reset_ioa_job(struct ipr_cmnd *); 525static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 526 enum ipr_shutdown_type); 527 528#ifdef CONFIG_SCSI_IPR_TRACE 529/** 530 * ipr_trc_hook - Add a trace entry to the driver trace 531 * @ipr_cmd: ipr command struct 532 * @type: trace type 533 * @add_data: additional data 534 * 535 * Return value: 536 * none 537 **/ 538static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 539 u8 type, u32 add_data) 540{ 541 struct ipr_trace_entry *trace_entry; 542 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 543 544 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 545 trace_entry->time = jiffies; 546 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 547 trace_entry->type = type; 548 if (ipr_cmd->ioa_cfg->sis64) 549 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; 550 else 551 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; 552 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 553 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 554 trace_entry->u.add_data = add_data; 555} 556#else 557#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 558#endif 559 560/** 561 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 562 * @ipr_cmd: ipr command struct 563 * 564 * Return value: 565 * none 566 **/ 567static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 568{ 569 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 570 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 571 dma_addr_t dma_addr = ipr_cmd->dma_addr; 572 573 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 574 ioarcb->data_transfer_length = 0; 575 ioarcb->read_data_transfer_length = 0; 576 ioarcb->ioadl_len = 0; 577 ioarcb->read_ioadl_len = 0; 578 579 if (ipr_cmd->ioa_cfg->sis64) 580 ioarcb->u.sis64_addr_data.data_ioadl_addr = 581 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 582 else { 583 ioarcb->write_ioadl_addr = 584 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 585 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 586 } 587 588 ioasa->ioasc = 0; 589 ioasa->residual_data_len = 0; 590 ioasa->u.gata.status = 0; 591 592 ipr_cmd->scsi_cmd = NULL; 593 ipr_cmd->qc = NULL; 594 ipr_cmd->sense_buffer[0] = 0; 595 ipr_cmd->dma_use_sg = 0; 596} 597 598/** 599 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 600 * @ipr_cmd: ipr command struct 601 * 602 * Return value: 603 * none 604 **/ 605static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 606{ 607 ipr_reinit_ipr_cmnd(ipr_cmd); 608 ipr_cmd->u.scratch = 0; 609 ipr_cmd->sibling = NULL; 610 init_timer(&ipr_cmd->timer); 611} 612 613/** 614 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 615 * @ioa_cfg: ioa config struct 616 * 617 * Return value: 618 * pointer to ipr command struct 619 **/ 620static 621struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 622{ 623 struct ipr_cmnd *ipr_cmd; 624 625 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 626 list_del(&ipr_cmd->queue); 627 ipr_init_ipr_cmnd(ipr_cmd); 628 629 return ipr_cmd; 630} 631 632/** 633 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 634 * @ioa_cfg: ioa config struct 635 * @clr_ints: interrupts to clear 636 * 637 * This function masks all interrupts on the adapter, then clears the 638 * interrupts specified in the mask 639 * 640 * Return value: 641 * none 642 **/ 643static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 644 u32 clr_ints) 645{ 646 volatile u32 int_reg; 647 648 /* Stop new interrupts */ 649 ioa_cfg->allow_interrupts = 0; 650 651 /* Set interrupt mask to stop all new interrupts */ 652 if (ioa_cfg->sis64) 653 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); 654 else 655 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 656 657 /* Clear any pending interrupts */ 658 if (ioa_cfg->sis64) 659 writel(~0, ioa_cfg->regs.clr_interrupt_reg); 660 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); 661 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 662} 663 664/** 665 * ipr_save_pcix_cmd_reg - Save PCI-X command register 666 * @ioa_cfg: ioa config struct 667 * 668 * Return value: 669 * 0 on success / -EIO on failure 670 **/ 671static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 672{ 673 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 674 675 if (pcix_cmd_reg == 0) 676 return 0; 677 678 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 679 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 680 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 681 return -EIO; 682 } 683 684 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 685 return 0; 686} 687 688/** 689 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 690 * @ioa_cfg: ioa config struct 691 * 692 * Return value: 693 * 0 on success / -EIO on failure 694 **/ 695static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 696{ 697 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 698 699 if (pcix_cmd_reg) { 700 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 701 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 702 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 703 return -EIO; 704 } 705 } 706 707 return 0; 708} 709 710/** 711 * ipr_sata_eh_done - done function for aborted SATA commands 712 * @ipr_cmd: ipr command struct 713 * 714 * This function is invoked for ops generated to SATA 715 * devices which are being aborted. 716 * 717 * Return value: 718 * none 719 **/ 720static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 721{ 722 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 723 struct ata_queued_cmd *qc = ipr_cmd->qc; 724 struct ipr_sata_port *sata_port = qc->ap->private_data; 725 726 qc->err_mask |= AC_ERR_OTHER; 727 sata_port->ioasa.status |= ATA_BUSY; 728 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 729 ata_qc_complete(qc); 730} 731 732/** 733 * ipr_scsi_eh_done - mid-layer done function for aborted ops 734 * @ipr_cmd: ipr command struct 735 * 736 * This function is invoked by the interrupt handler for 737 * ops generated by the SCSI mid-layer which are being aborted. 738 * 739 * Return value: 740 * none 741 **/ 742static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 743{ 744 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 745 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 746 747 scsi_cmd->result |= (DID_ERROR << 16); 748 749 scsi_dma_unmap(ipr_cmd->scsi_cmd); 750 scsi_cmd->scsi_done(scsi_cmd); 751 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 752} 753 754/** 755 * ipr_fail_all_ops - Fails all outstanding ops. 756 * @ioa_cfg: ioa config struct 757 * 758 * This function fails all outstanding ops. 759 * 760 * Return value: 761 * none 762 **/ 763static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 764{ 765 struct ipr_cmnd *ipr_cmd, *temp; 766 767 ENTER; 768 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 769 list_del(&ipr_cmd->queue); 770 771 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 772 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID); 773 774 if (ipr_cmd->scsi_cmd) 775 ipr_cmd->done = ipr_scsi_eh_done; 776 else if (ipr_cmd->qc) 777 ipr_cmd->done = ipr_sata_eh_done; 778 779 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 780 del_timer(&ipr_cmd->timer); 781 ipr_cmd->done(ipr_cmd); 782 } 783 784 LEAVE; 785} 786 787/** 788 * ipr_send_command - Send driver initiated requests. 789 * @ipr_cmd: ipr command struct 790 * 791 * This function sends a command to the adapter using the correct write call. 792 * In the case of sis64, calculate the ioarcb size required. Then or in the 793 * appropriate bits. 794 * 795 * Return value: 796 * none 797 **/ 798static void ipr_send_command(struct ipr_cmnd *ipr_cmd) 799{ 800 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 801 dma_addr_t send_dma_addr = ipr_cmd->dma_addr; 802 803 if (ioa_cfg->sis64) { 804 /* The default size is 256 bytes */ 805 send_dma_addr |= 0x1; 806 807 /* If the number of ioadls * size of ioadl > 128 bytes, 808 then use a 512 byte ioarcb */ 809 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) 810 send_dma_addr |= 0x4; 811 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 812 } else 813 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 814} 815 816/** 817 * ipr_do_req - Send driver initiated requests. 818 * @ipr_cmd: ipr command struct 819 * @done: done function 820 * @timeout_func: timeout function 821 * @timeout: timeout value 822 * 823 * This function sends the specified command to the adapter with the 824 * timeout given. The done function is invoked on command completion. 825 * 826 * Return value: 827 * none 828 **/ 829static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 830 void (*done) (struct ipr_cmnd *), 831 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 832{ 833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 834 835 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 836 837 ipr_cmd->done = done; 838 839 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 840 ipr_cmd->timer.expires = jiffies + timeout; 841 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 842 843 add_timer(&ipr_cmd->timer); 844 845 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 846 847 mb(); 848 849 ipr_send_command(ipr_cmd); 850} 851 852/** 853 * ipr_internal_cmd_done - Op done function for an internally generated op. 854 * @ipr_cmd: ipr command struct 855 * 856 * This function is the op done function for an internally generated, 857 * blocking op. It simply wakes the sleeping thread. 858 * 859 * Return value: 860 * none 861 **/ 862static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 863{ 864 if (ipr_cmd->sibling) 865 ipr_cmd->sibling = NULL; 866 else 867 complete(&ipr_cmd->completion); 868} 869 870/** 871 * ipr_init_ioadl - initialize the ioadl for the correct SIS type 872 * @ipr_cmd: ipr command struct 873 * @dma_addr: dma address 874 * @len: transfer length 875 * @flags: ioadl flag value 876 * 877 * This function initializes an ioadl in the case where there is only a single 878 * descriptor. 879 * 880 * Return value: 881 * nothing 882 **/ 883static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, 884 u32 len, int flags) 885{ 886 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 887 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 888 889 ipr_cmd->dma_use_sg = 1; 890 891 if (ipr_cmd->ioa_cfg->sis64) { 892 ioadl64->flags = cpu_to_be32(flags); 893 ioadl64->data_len = cpu_to_be32(len); 894 ioadl64->address = cpu_to_be64(dma_addr); 895 896 ipr_cmd->ioarcb.ioadl_len = 897 cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); 898 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 899 } else { 900 ioadl->flags_and_data_len = cpu_to_be32(flags | len); 901 ioadl->address = cpu_to_be32(dma_addr); 902 903 if (flags == IPR_IOADL_FLAGS_READ_LAST) { 904 ipr_cmd->ioarcb.read_ioadl_len = 905 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 906 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); 907 } else { 908 ipr_cmd->ioarcb.ioadl_len = 909 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 910 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 911 } 912 } 913} 914 915/** 916 * ipr_send_blocking_cmd - Send command and sleep on its completion. 917 * @ipr_cmd: ipr command struct 918 * @timeout_func: function to invoke if command times out 919 * @timeout: timeout 920 * 921 * Return value: 922 * none 923 **/ 924static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 925 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 926 u32 timeout) 927{ 928 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 929 930 init_completion(&ipr_cmd->completion); 931 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 932 933 spin_unlock_irq(ioa_cfg->host->host_lock); 934 wait_for_completion(&ipr_cmd->completion); 935 spin_lock_irq(ioa_cfg->host->host_lock); 936} 937 938/** 939 * ipr_send_hcam - Send an HCAM to the adapter. 940 * @ioa_cfg: ioa config struct 941 * @type: HCAM type 942 * @hostrcb: hostrcb struct 943 * 944 * This function will send a Host Controlled Async command to the adapter. 945 * If HCAMs are currently not allowed to be issued to the adapter, it will 946 * place the hostrcb on the free queue. 947 * 948 * Return value: 949 * none 950 **/ 951static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 952 struct ipr_hostrcb *hostrcb) 953{ 954 struct ipr_cmnd *ipr_cmd; 955 struct ipr_ioarcb *ioarcb; 956 957 if (ioa_cfg->allow_cmds) { 958 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 959 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 960 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 961 962 ipr_cmd->u.hostrcb = hostrcb; 963 ioarcb = &ipr_cmd->ioarcb; 964 965 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 966 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 967 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 968 ioarcb->cmd_pkt.cdb[1] = type; 969 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 970 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 971 972 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, 973 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); 974 975 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 976 ipr_cmd->done = ipr_process_ccn; 977 else 978 ipr_cmd->done = ipr_process_error; 979 980 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 981 982 mb(); 983 984 ipr_send_command(ipr_cmd); 985 } else { 986 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 987 } 988} 989 990/** 991 * ipr_update_ata_class - Update the ata class in the resource entry 992 * @res: resource entry struct 993 * @proto: cfgte device bus protocol value 994 * 995 * Return value: 996 * none 997 **/ 998static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) 999{ 1000 switch(proto) { 1001 case IPR_PROTO_SATA: 1002 case IPR_PROTO_SAS_STP: 1003 res->ata_class = ATA_DEV_ATA; 1004 break; 1005 case IPR_PROTO_SATA_ATAPI: 1006 case IPR_PROTO_SAS_STP_ATAPI: 1007 res->ata_class = ATA_DEV_ATAPI; 1008 break; 1009 default: 1010 res->ata_class = ATA_DEV_UNKNOWN; 1011 break; 1012 }; 1013} 1014 1015/** 1016 * ipr_init_res_entry - Initialize a resource entry struct. 1017 * @res: resource entry struct 1018 * @cfgtew: config table entry wrapper struct 1019 * 1020 * Return value: 1021 * none 1022 **/ 1023static void ipr_init_res_entry(struct ipr_resource_entry *res, 1024 struct ipr_config_table_entry_wrapper *cfgtew) 1025{ 1026 int found = 0; 1027 unsigned int proto; 1028 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1029 struct ipr_resource_entry *gscsi_res = NULL; 1030 1031 res->needs_sync_complete = 0; 1032 res->in_erp = 0; 1033 res->add_to_ml = 0; 1034 res->del_from_ml = 0; 1035 res->resetting_device = 0; 1036 res->sdev = NULL; 1037 res->sata_port = NULL; 1038 1039 if (ioa_cfg->sis64) { 1040 proto = cfgtew->u.cfgte64->proto; 1041 res->res_flags = cfgtew->u.cfgte64->res_flags; 1042 res->qmodel = IPR_QUEUEING_MODEL64(res); 1043 res->type = cfgtew->u.cfgte64->res_type; 1044 1045 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1046 sizeof(res->res_path)); 1047 1048 res->bus = 0; 1049 res->lun = scsilun_to_int(&res->dev_lun); 1050 1051 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1052 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { 1053 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { 1054 found = 1; 1055 res->target = gscsi_res->target; 1056 break; 1057 } 1058 } 1059 if (!found) { 1060 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1061 ioa_cfg->max_devs_supported); 1062 set_bit(res->target, ioa_cfg->target_ids); 1063 } 1064 1065 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1066 sizeof(res->dev_lun.scsi_lun)); 1067 } else if (res->type == IPR_RES_TYPE_IOAFP) { 1068 res->bus = IPR_IOAFP_VIRTUAL_BUS; 1069 res->target = 0; 1070 } else if (res->type == IPR_RES_TYPE_ARRAY) { 1071 res->bus = IPR_ARRAY_VIRTUAL_BUS; 1072 res->target = find_first_zero_bit(ioa_cfg->array_ids, 1073 ioa_cfg->max_devs_supported); 1074 set_bit(res->target, ioa_cfg->array_ids); 1075 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { 1076 res->bus = IPR_VSET_VIRTUAL_BUS; 1077 res->target = find_first_zero_bit(ioa_cfg->vset_ids, 1078 ioa_cfg->max_devs_supported); 1079 set_bit(res->target, ioa_cfg->vset_ids); 1080 } else { 1081 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1082 ioa_cfg->max_devs_supported); 1083 set_bit(res->target, ioa_cfg->target_ids); 1084 } 1085 } else { 1086 proto = cfgtew->u.cfgte->proto; 1087 res->qmodel = IPR_QUEUEING_MODEL(res); 1088 res->flags = cfgtew->u.cfgte->flags; 1089 if (res->flags & IPR_IS_IOA_RESOURCE) 1090 res->type = IPR_RES_TYPE_IOAFP; 1091 else 1092 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1093 1094 res->bus = cfgtew->u.cfgte->res_addr.bus; 1095 res->target = cfgtew->u.cfgte->res_addr.target; 1096 res->lun = cfgtew->u.cfgte->res_addr.lun; 1097 } 1098 1099 ipr_update_ata_class(res, proto); 1100} 1101 1102/** 1103 * ipr_is_same_device - Determine if two devices are the same. 1104 * @res: resource entry struct 1105 * @cfgtew: config table entry wrapper struct 1106 * 1107 * Return value: 1108 * 1 if the devices are the same / 0 otherwise 1109 **/ 1110static int ipr_is_same_device(struct ipr_resource_entry *res, 1111 struct ipr_config_table_entry_wrapper *cfgtew) 1112{ 1113 if (res->ioa_cfg->sis64) { 1114 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, 1115 sizeof(cfgtew->u.cfgte64->dev_id)) && 1116 !memcmp(&res->lun, &cfgtew->u.cfgte64->lun, 1117 sizeof(cfgtew->u.cfgte64->lun))) { 1118 return 1; 1119 } 1120 } else { 1121 if (res->bus == cfgtew->u.cfgte->res_addr.bus && 1122 res->target == cfgtew->u.cfgte->res_addr.target && 1123 res->lun == cfgtew->u.cfgte->res_addr.lun) 1124 return 1; 1125 } 1126 1127 return 0; 1128} 1129 1130/** 1131 * ipr_format_resource_path - Format the resource path for printing. 1132 * @res_path: resource path 1133 * @buf: buffer 1134 * 1135 * Return value: 1136 * pointer to buffer 1137 **/ 1138static char *ipr_format_resource_path(u8 *res_path, char *buffer) 1139{ 1140 int i; 1141 1142 sprintf(buffer, "%02X", res_path[0]); 1143 for (i=1; res_path[i] != 0xff; i++) 1144 sprintf(buffer, "%s-%02X", buffer, res_path[i]); 1145 1146 return buffer; 1147} 1148 1149/** 1150 * ipr_update_res_entry - Update the resource entry. 1151 * @res: resource entry struct 1152 * @cfgtew: config table entry wrapper struct 1153 * 1154 * Return value: 1155 * none 1156 **/ 1157static void ipr_update_res_entry(struct ipr_resource_entry *res, 1158 struct ipr_config_table_entry_wrapper *cfgtew) 1159{ 1160 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1161 unsigned int proto; 1162 int new_path = 0; 1163 1164 if (res->ioa_cfg->sis64) { 1165 res->flags = cfgtew->u.cfgte64->flags; 1166 res->res_flags = cfgtew->u.cfgte64->res_flags; 1167 res->type = cfgtew->u.cfgte64->res_type & 0x0f; 1168 1169 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, 1170 sizeof(struct ipr_std_inq_data)); 1171 1172 res->qmodel = IPR_QUEUEING_MODEL64(res); 1173 proto = cfgtew->u.cfgte64->proto; 1174 res->res_handle = cfgtew->u.cfgte64->res_handle; 1175 res->dev_id = cfgtew->u.cfgte64->dev_id; 1176 1177 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1178 sizeof(res->dev_lun.scsi_lun)); 1179 1180 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, 1181 sizeof(res->res_path))) { 1182 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1183 sizeof(res->res_path)); 1184 new_path = 1; 1185 } 1186 1187 if (res->sdev && new_path) 1188 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", 1189 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 1190 } else { 1191 res->flags = cfgtew->u.cfgte->flags; 1192 if (res->flags & IPR_IS_IOA_RESOURCE) 1193 res->type = IPR_RES_TYPE_IOAFP; 1194 else 1195 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1196 1197 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, 1198 sizeof(struct ipr_std_inq_data)); 1199 1200 res->qmodel = IPR_QUEUEING_MODEL(res); 1201 proto = cfgtew->u.cfgte->proto; 1202 res->res_handle = cfgtew->u.cfgte->res_handle; 1203 } 1204 1205 ipr_update_ata_class(res, proto); 1206} 1207 1208/** 1209 * ipr_clear_res_target - Clear the bit in the bit map representing the target 1210 * for the resource. 1211 * @res: resource entry struct 1212 * @cfgtew: config table entry wrapper struct 1213 * 1214 * Return value: 1215 * none 1216 **/ 1217static void ipr_clear_res_target(struct ipr_resource_entry *res) 1218{ 1219 struct ipr_resource_entry *gscsi_res = NULL; 1220 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1221 1222 if (!ioa_cfg->sis64) 1223 return; 1224 1225 if (res->bus == IPR_ARRAY_VIRTUAL_BUS) 1226 clear_bit(res->target, ioa_cfg->array_ids); 1227 else if (res->bus == IPR_VSET_VIRTUAL_BUS) 1228 clear_bit(res->target, ioa_cfg->vset_ids); 1229 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1230 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) 1231 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) 1232 return; 1233 clear_bit(res->target, ioa_cfg->target_ids); 1234 1235 } else if (res->bus == 0) 1236 clear_bit(res->target, ioa_cfg->target_ids); 1237} 1238 1239/** 1240 * ipr_handle_config_change - Handle a config change from the adapter 1241 * @ioa_cfg: ioa config struct 1242 * @hostrcb: hostrcb 1243 * 1244 * Return value: 1245 * none 1246 **/ 1247static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 1248 struct ipr_hostrcb *hostrcb) 1249{ 1250 struct ipr_resource_entry *res = NULL; 1251 struct ipr_config_table_entry_wrapper cfgtew; 1252 __be32 cc_res_handle; 1253 1254 u32 is_ndn = 1; 1255 1256 if (ioa_cfg->sis64) { 1257 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; 1258 cc_res_handle = cfgtew.u.cfgte64->res_handle; 1259 } else { 1260 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; 1261 cc_res_handle = cfgtew.u.cfgte->res_handle; 1262 } 1263 1264 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1265 if (res->res_handle == cc_res_handle) { 1266 is_ndn = 0; 1267 break; 1268 } 1269 } 1270 1271 if (is_ndn) { 1272 if (list_empty(&ioa_cfg->free_res_q)) { 1273 ipr_send_hcam(ioa_cfg, 1274 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 1275 hostrcb); 1276 return; 1277 } 1278 1279 res = list_entry(ioa_cfg->free_res_q.next, 1280 struct ipr_resource_entry, queue); 1281 1282 list_del(&res->queue); 1283 ipr_init_res_entry(res, &cfgtew); 1284 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 1285 } 1286 1287 ipr_update_res_entry(res, &cfgtew); 1288 1289 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 1290 if (res->sdev) { 1291 res->del_from_ml = 1; 1292 res->res_handle = IPR_INVALID_RES_HANDLE; 1293 if (ioa_cfg->allow_ml_add_del) 1294 schedule_work(&ioa_cfg->work_q); 1295 } else { 1296 ipr_clear_res_target(res); 1297 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 1298 } 1299 } else if (!res->sdev) { 1300 res->add_to_ml = 1; 1301 if (ioa_cfg->allow_ml_add_del) 1302 schedule_work(&ioa_cfg->work_q); 1303 } 1304 1305 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1306} 1307 1308/** 1309 * ipr_process_ccn - Op done function for a CCN. 1310 * @ipr_cmd: ipr command struct 1311 * 1312 * This function is the op done function for a configuration 1313 * change notification host controlled async from the adapter. 1314 * 1315 * Return value: 1316 * none 1317 **/ 1318static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 1319{ 1320 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1321 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1322 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 1323 1324 list_del(&hostrcb->queue); 1325 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1326 1327 if (ioasc) { 1328 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 1329 dev_err(&ioa_cfg->pdev->dev, 1330 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1331 1332 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1333 } else { 1334 ipr_handle_config_change(ioa_cfg, hostrcb); 1335 } 1336} 1337 1338/** 1339 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 1340 * @i: index into buffer 1341 * @buf: string to modify 1342 * 1343 * This function will strip all trailing whitespace, pad the end 1344 * of the string with a single space, and NULL terminate the string. 1345 * 1346 * Return value: 1347 * new length of string 1348 **/ 1349static int strip_and_pad_whitespace(int i, char *buf) 1350{ 1351 while (i && buf[i] == ' ') 1352 i--; 1353 buf[i+1] = ' '; 1354 buf[i+2] = '\0'; 1355 return i + 2; 1356} 1357 1358/** 1359 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 1360 * @prefix: string to print at start of printk 1361 * @hostrcb: hostrcb pointer 1362 * @vpd: vendor/product id/sn struct 1363 * 1364 * Return value: 1365 * none 1366 **/ 1367static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1368 struct ipr_vpd *vpd) 1369{ 1370 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 1371 int i = 0; 1372 1373 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1374 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 1375 1376 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 1377 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 1378 1379 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1380 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1381 1382 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1383} 1384 1385/** 1386 * ipr_log_vpd - Log the passed VPD to the error log. 1387 * @vpd: vendor/product id/sn struct 1388 * 1389 * Return value: 1390 * none 1391 **/ 1392static void ipr_log_vpd(struct ipr_vpd *vpd) 1393{ 1394 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1395 + IPR_SERIAL_NUM_LEN]; 1396 1397 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1398 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1399 IPR_PROD_ID_LEN); 1400 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1401 ipr_err("Vendor/Product ID: %s\n", buffer); 1402 1403 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1404 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1405 ipr_err(" Serial Number: %s\n", buffer); 1406} 1407 1408/** 1409 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1410 * @prefix: string to print at start of printk 1411 * @hostrcb: hostrcb pointer 1412 * @vpd: vendor/product id/sn/wwn struct 1413 * 1414 * Return value: 1415 * none 1416 **/ 1417static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1418 struct ipr_ext_vpd *vpd) 1419{ 1420 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1421 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1422 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1423} 1424 1425/** 1426 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1427 * @vpd: vendor/product id/sn/wwn struct 1428 * 1429 * Return value: 1430 * none 1431 **/ 1432static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1433{ 1434 ipr_log_vpd(&vpd->vpd); 1435 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1436 be32_to_cpu(vpd->wwid[1])); 1437} 1438 1439/** 1440 * ipr_log_enhanced_cache_error - Log a cache error. 1441 * @ioa_cfg: ioa config struct 1442 * @hostrcb: hostrcb struct 1443 * 1444 * Return value: 1445 * none 1446 **/ 1447static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1448 struct ipr_hostrcb *hostrcb) 1449{ 1450 struct ipr_hostrcb_type_12_error *error; 1451 1452 if (ioa_cfg->sis64) 1453 error = &hostrcb->hcam.u.error64.u.type_12_error; 1454 else 1455 error = &hostrcb->hcam.u.error.u.type_12_error; 1456 1457 ipr_err("-----Current Configuration-----\n"); 1458 ipr_err("Cache Directory Card Information:\n"); 1459 ipr_log_ext_vpd(&error->ioa_vpd); 1460 ipr_err("Adapter Card Information:\n"); 1461 ipr_log_ext_vpd(&error->cfc_vpd); 1462 1463 ipr_err("-----Expected Configuration-----\n"); 1464 ipr_err("Cache Directory Card Information:\n"); 1465 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1466 ipr_err("Adapter Card Information:\n"); 1467 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1468 1469 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1470 be32_to_cpu(error->ioa_data[0]), 1471 be32_to_cpu(error->ioa_data[1]), 1472 be32_to_cpu(error->ioa_data[2])); 1473} 1474 1475/** 1476 * ipr_log_cache_error - Log a cache error. 1477 * @ioa_cfg: ioa config struct 1478 * @hostrcb: hostrcb struct 1479 * 1480 * Return value: 1481 * none 1482 **/ 1483static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1484 struct ipr_hostrcb *hostrcb) 1485{ 1486 struct ipr_hostrcb_type_02_error *error = 1487 &hostrcb->hcam.u.error.u.type_02_error; 1488 1489 ipr_err("-----Current Configuration-----\n"); 1490 ipr_err("Cache Directory Card Information:\n"); 1491 ipr_log_vpd(&error->ioa_vpd); 1492 ipr_err("Adapter Card Information:\n"); 1493 ipr_log_vpd(&error->cfc_vpd); 1494 1495 ipr_err("-----Expected Configuration-----\n"); 1496 ipr_err("Cache Directory Card Information:\n"); 1497 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1498 ipr_err("Adapter Card Information:\n"); 1499 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1500 1501 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1502 be32_to_cpu(error->ioa_data[0]), 1503 be32_to_cpu(error->ioa_data[1]), 1504 be32_to_cpu(error->ioa_data[2])); 1505} 1506 1507/** 1508 * ipr_log_enhanced_config_error - Log a configuration error. 1509 * @ioa_cfg: ioa config struct 1510 * @hostrcb: hostrcb struct 1511 * 1512 * Return value: 1513 * none 1514 **/ 1515static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1516 struct ipr_hostrcb *hostrcb) 1517{ 1518 int errors_logged, i; 1519 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1520 struct ipr_hostrcb_type_13_error *error; 1521 1522 error = &hostrcb->hcam.u.error.u.type_13_error; 1523 errors_logged = be32_to_cpu(error->errors_logged); 1524 1525 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1526 be32_to_cpu(error->errors_detected), errors_logged); 1527 1528 dev_entry = error->dev; 1529 1530 for (i = 0; i < errors_logged; i++, dev_entry++) { 1531 ipr_err_separator; 1532 1533 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1534 ipr_log_ext_vpd(&dev_entry->vpd); 1535 1536 ipr_err("-----New Device Information-----\n"); 1537 ipr_log_ext_vpd(&dev_entry->new_vpd); 1538 1539 ipr_err("Cache Directory Card Information:\n"); 1540 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1541 1542 ipr_err("Adapter Card Information:\n"); 1543 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1544 } 1545} 1546 1547/** 1548 * ipr_log_sis64_config_error - Log a device error. 1549 * @ioa_cfg: ioa config struct 1550 * @hostrcb: hostrcb struct 1551 * 1552 * Return value: 1553 * none 1554 **/ 1555static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, 1556 struct ipr_hostrcb *hostrcb) 1557{ 1558 int errors_logged, i; 1559 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; 1560 struct ipr_hostrcb_type_23_error *error; 1561 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1562 1563 error = &hostrcb->hcam.u.error64.u.type_23_error; 1564 errors_logged = be32_to_cpu(error->errors_logged); 1565 1566 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1567 be32_to_cpu(error->errors_detected), errors_logged); 1568 1569 dev_entry = error->dev; 1570 1571 for (i = 0; i < errors_logged; i++, dev_entry++) { 1572 ipr_err_separator; 1573 1574 ipr_err("Device %d : %s", i + 1, 1575 ipr_format_resource_path(&dev_entry->res_path[0], &buffer[0])); 1576 ipr_log_ext_vpd(&dev_entry->vpd); 1577 1578 ipr_err("-----New Device Information-----\n"); 1579 ipr_log_ext_vpd(&dev_entry->new_vpd); 1580 1581 ipr_err("Cache Directory Card Information:\n"); 1582 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1583 1584 ipr_err("Adapter Card Information:\n"); 1585 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1586 } 1587} 1588 1589/** 1590 * ipr_log_config_error - Log a configuration error. 1591 * @ioa_cfg: ioa config struct 1592 * @hostrcb: hostrcb struct 1593 * 1594 * Return value: 1595 * none 1596 **/ 1597static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1598 struct ipr_hostrcb *hostrcb) 1599{ 1600 int errors_logged, i; 1601 struct ipr_hostrcb_device_data_entry *dev_entry; 1602 struct ipr_hostrcb_type_03_error *error; 1603 1604 error = &hostrcb->hcam.u.error.u.type_03_error; 1605 errors_logged = be32_to_cpu(error->errors_logged); 1606 1607 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1608 be32_to_cpu(error->errors_detected), errors_logged); 1609 1610 dev_entry = error->dev; 1611 1612 for (i = 0; i < errors_logged; i++, dev_entry++) { 1613 ipr_err_separator; 1614 1615 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1616 ipr_log_vpd(&dev_entry->vpd); 1617 1618 ipr_err("-----New Device Information-----\n"); 1619 ipr_log_vpd(&dev_entry->new_vpd); 1620 1621 ipr_err("Cache Directory Card Information:\n"); 1622 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1623 1624 ipr_err("Adapter Card Information:\n"); 1625 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1626 1627 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1628 be32_to_cpu(dev_entry->ioa_data[0]), 1629 be32_to_cpu(dev_entry->ioa_data[1]), 1630 be32_to_cpu(dev_entry->ioa_data[2]), 1631 be32_to_cpu(dev_entry->ioa_data[3]), 1632 be32_to_cpu(dev_entry->ioa_data[4])); 1633 } 1634} 1635 1636/** 1637 * ipr_log_enhanced_array_error - Log an array configuration error. 1638 * @ioa_cfg: ioa config struct 1639 * @hostrcb: hostrcb struct 1640 * 1641 * Return value: 1642 * none 1643 **/ 1644static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1645 struct ipr_hostrcb *hostrcb) 1646{ 1647 int i, num_entries; 1648 struct ipr_hostrcb_type_14_error *error; 1649 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1650 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1651 1652 error = &hostrcb->hcam.u.error.u.type_14_error; 1653 1654 ipr_err_separator; 1655 1656 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1657 error->protection_level, 1658 ioa_cfg->host->host_no, 1659 error->last_func_vset_res_addr.bus, 1660 error->last_func_vset_res_addr.target, 1661 error->last_func_vset_res_addr.lun); 1662 1663 ipr_err_separator; 1664 1665 array_entry = error->array_member; 1666 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1667 sizeof(error->array_member)); 1668 1669 for (i = 0; i < num_entries; i++, array_entry++) { 1670 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1671 continue; 1672 1673 if (be32_to_cpu(error->exposed_mode_adn) == i) 1674 ipr_err("Exposed Array Member %d:\n", i); 1675 else 1676 ipr_err("Array Member %d:\n", i); 1677 1678 ipr_log_ext_vpd(&array_entry->vpd); 1679 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1680 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1681 "Expected Location"); 1682 1683 ipr_err_separator; 1684 } 1685} 1686 1687/** 1688 * ipr_log_array_error - Log an array configuration error. 1689 * @ioa_cfg: ioa config struct 1690 * @hostrcb: hostrcb struct 1691 * 1692 * Return value: 1693 * none 1694 **/ 1695static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1696 struct ipr_hostrcb *hostrcb) 1697{ 1698 int i; 1699 struct ipr_hostrcb_type_04_error *error; 1700 struct ipr_hostrcb_array_data_entry *array_entry; 1701 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1702 1703 error = &hostrcb->hcam.u.error.u.type_04_error; 1704 1705 ipr_err_separator; 1706 1707 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1708 error->protection_level, 1709 ioa_cfg->host->host_no, 1710 error->last_func_vset_res_addr.bus, 1711 error->last_func_vset_res_addr.target, 1712 error->last_func_vset_res_addr.lun); 1713 1714 ipr_err_separator; 1715 1716 array_entry = error->array_member; 1717 1718 for (i = 0; i < 18; i++) { 1719 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1720 continue; 1721 1722 if (be32_to_cpu(error->exposed_mode_adn) == i) 1723 ipr_err("Exposed Array Member %d:\n", i); 1724 else 1725 ipr_err("Array Member %d:\n", i); 1726 1727 ipr_log_vpd(&array_entry->vpd); 1728 1729 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1730 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1731 "Expected Location"); 1732 1733 ipr_err_separator; 1734 1735 if (i == 9) 1736 array_entry = error->array_member2; 1737 else 1738 array_entry++; 1739 } 1740} 1741 1742/** 1743 * ipr_log_hex_data - Log additional hex IOA error data. 1744 * @ioa_cfg: ioa config struct 1745 * @data: IOA error data 1746 * @len: data length 1747 * 1748 * Return value: 1749 * none 1750 **/ 1751static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1752{ 1753 int i; 1754 1755 if (len == 0) 1756 return; 1757 1758 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1759 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1760 1761 for (i = 0; i < len / 4; i += 4) { 1762 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1763 be32_to_cpu(data[i]), 1764 be32_to_cpu(data[i+1]), 1765 be32_to_cpu(data[i+2]), 1766 be32_to_cpu(data[i+3])); 1767 } 1768} 1769 1770/** 1771 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1772 * @ioa_cfg: ioa config struct 1773 * @hostrcb: hostrcb struct 1774 * 1775 * Return value: 1776 * none 1777 **/ 1778static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1779 struct ipr_hostrcb *hostrcb) 1780{ 1781 struct ipr_hostrcb_type_17_error *error; 1782 1783 if (ioa_cfg->sis64) 1784 error = &hostrcb->hcam.u.error64.u.type_17_error; 1785 else 1786 error = &hostrcb->hcam.u.error.u.type_17_error; 1787 1788 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1789 strim(error->failure_reason); 1790 1791 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1792 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1793 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1794 ipr_log_hex_data(ioa_cfg, error->data, 1795 be32_to_cpu(hostrcb->hcam.length) - 1796 (offsetof(struct ipr_hostrcb_error, u) + 1797 offsetof(struct ipr_hostrcb_type_17_error, data))); 1798} 1799 1800/** 1801 * ipr_log_dual_ioa_error - Log a dual adapter error. 1802 * @ioa_cfg: ioa config struct 1803 * @hostrcb: hostrcb struct 1804 * 1805 * Return value: 1806 * none 1807 **/ 1808static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1809 struct ipr_hostrcb *hostrcb) 1810{ 1811 struct ipr_hostrcb_type_07_error *error; 1812 1813 error = &hostrcb->hcam.u.error.u.type_07_error; 1814 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1815 strim(error->failure_reason); 1816 1817 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1818 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1819 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1820 ipr_log_hex_data(ioa_cfg, error->data, 1821 be32_to_cpu(hostrcb->hcam.length) - 1822 (offsetof(struct ipr_hostrcb_error, u) + 1823 offsetof(struct ipr_hostrcb_type_07_error, data))); 1824} 1825 1826static const struct { 1827 u8 active; 1828 char *desc; 1829} path_active_desc[] = { 1830 { IPR_PATH_NO_INFO, "Path" }, 1831 { IPR_PATH_ACTIVE, "Active path" }, 1832 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1833}; 1834 1835static const struct { 1836 u8 state; 1837 char *desc; 1838} path_state_desc[] = { 1839 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1840 { IPR_PATH_HEALTHY, "is healthy" }, 1841 { IPR_PATH_DEGRADED, "is degraded" }, 1842 { IPR_PATH_FAILED, "is failed" } 1843}; 1844 1845/** 1846 * ipr_log_fabric_path - Log a fabric path error 1847 * @hostrcb: hostrcb struct 1848 * @fabric: fabric descriptor 1849 * 1850 * Return value: 1851 * none 1852 **/ 1853static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1854 struct ipr_hostrcb_fabric_desc *fabric) 1855{ 1856 int i, j; 1857 u8 path_state = fabric->path_state; 1858 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1859 u8 state = path_state & IPR_PATH_STATE_MASK; 1860 1861 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1862 if (path_active_desc[i].active != active) 1863 continue; 1864 1865 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1866 if (path_state_desc[j].state != state) 1867 continue; 1868 1869 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1870 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1871 path_active_desc[i].desc, path_state_desc[j].desc, 1872 fabric->ioa_port); 1873 } else if (fabric->cascaded_expander == 0xff) { 1874 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1875 path_active_desc[i].desc, path_state_desc[j].desc, 1876 fabric->ioa_port, fabric->phy); 1877 } else if (fabric->phy == 0xff) { 1878 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1879 path_active_desc[i].desc, path_state_desc[j].desc, 1880 fabric->ioa_port, fabric->cascaded_expander); 1881 } else { 1882 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1883 path_active_desc[i].desc, path_state_desc[j].desc, 1884 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1885 } 1886 return; 1887 } 1888 } 1889 1890 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1891 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1892} 1893 1894/** 1895 * ipr_log64_fabric_path - Log a fabric path error 1896 * @hostrcb: hostrcb struct 1897 * @fabric: fabric descriptor 1898 * 1899 * Return value: 1900 * none 1901 **/ 1902static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, 1903 struct ipr_hostrcb64_fabric_desc *fabric) 1904{ 1905 int i, j; 1906 u8 path_state = fabric->path_state; 1907 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1908 u8 state = path_state & IPR_PATH_STATE_MASK; 1909 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1910 1911 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1912 if (path_active_desc[i].active != active) 1913 continue; 1914 1915 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1916 if (path_state_desc[j].state != state) 1917 continue; 1918 1919 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", 1920 path_active_desc[i].desc, path_state_desc[j].desc, 1921 ipr_format_resource_path(&fabric->res_path[0], &buffer[0])); 1922 return; 1923 } 1924 } 1925 1926 ipr_err("Path state=%02X Resource Path=%s\n", path_state, 1927 ipr_format_resource_path(&fabric->res_path[0], &buffer[0])); 1928} 1929 1930static const struct { 1931 u8 type; 1932 char *desc; 1933} path_type_desc[] = { 1934 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1935 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1936 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1937 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1938}; 1939 1940static const struct { 1941 u8 status; 1942 char *desc; 1943} path_status_desc[] = { 1944 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1945 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1946 { IPR_PATH_CFG_FAILED, "Failed" }, 1947 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1948 { IPR_PATH_NOT_DETECTED, "Missing" }, 1949 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1950}; 1951 1952static const char *link_rate[] = { 1953 "unknown", 1954 "disabled", 1955 "phy reset problem", 1956 "spinup hold", 1957 "port selector", 1958 "unknown", 1959 "unknown", 1960 "unknown", 1961 "1.5Gbps", 1962 "3.0Gbps", 1963 "unknown", 1964 "unknown", 1965 "unknown", 1966 "unknown", 1967 "unknown", 1968 "unknown" 1969}; 1970 1971/** 1972 * ipr_log_path_elem - Log a fabric path element. 1973 * @hostrcb: hostrcb struct 1974 * @cfg: fabric path element struct 1975 * 1976 * Return value: 1977 * none 1978 **/ 1979static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1980 struct ipr_hostrcb_config_element *cfg) 1981{ 1982 int i, j; 1983 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1984 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1985 1986 if (type == IPR_PATH_CFG_NOT_EXIST) 1987 return; 1988 1989 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1990 if (path_type_desc[i].type != type) 1991 continue; 1992 1993 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 1994 if (path_status_desc[j].status != status) 1995 continue; 1996 1997 if (type == IPR_PATH_CFG_IOA_PORT) { 1998 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 1999 path_status_desc[j].desc, path_type_desc[i].desc, 2000 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2001 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2002 } else { 2003 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 2004 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 2005 path_status_desc[j].desc, path_type_desc[i].desc, 2006 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2007 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2008 } else if (cfg->cascaded_expander == 0xff) { 2009 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 2010 "WWN=%08X%08X\n", path_status_desc[j].desc, 2011 path_type_desc[i].desc, cfg->phy, 2012 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2013 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2014 } else if (cfg->phy == 0xff) { 2015 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 2016 "WWN=%08X%08X\n", path_status_desc[j].desc, 2017 path_type_desc[i].desc, cfg->cascaded_expander, 2018 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2019 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2020 } else { 2021 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 2022 "WWN=%08X%08X\n", path_status_desc[j].desc, 2023 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 2024 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2025 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2026 } 2027 } 2028 return; 2029 } 2030 } 2031 2032 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 2033 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 2034 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2035 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2036} 2037 2038/** 2039 * ipr_log64_path_elem - Log a fabric path element. 2040 * @hostrcb: hostrcb struct 2041 * @cfg: fabric path element struct 2042 * 2043 * Return value: 2044 * none 2045 **/ 2046static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, 2047 struct ipr_hostrcb64_config_element *cfg) 2048{ 2049 int i, j; 2050 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; 2051 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2052 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2053 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2054 2055 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) 2056 return; 2057 2058 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2059 if (path_type_desc[i].type != type) 2060 continue; 2061 2062 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2063 if (path_status_desc[j].status != status) 2064 continue; 2065 2066 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", 2067 path_status_desc[j].desc, path_type_desc[i].desc, 2068 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]), 2069 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2070 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2071 return; 2072 } 2073 } 2074 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " 2075 "WWN=%08X%08X\n", cfg->type_status, 2076 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]), 2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2079} 2080 2081/** 2082 * ipr_log_fabric_error - Log a fabric error. 2083 * @ioa_cfg: ioa config struct 2084 * @hostrcb: hostrcb struct 2085 * 2086 * Return value: 2087 * none 2088 **/ 2089static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2090 struct ipr_hostrcb *hostrcb) 2091{ 2092 struct ipr_hostrcb_type_20_error *error; 2093 struct ipr_hostrcb_fabric_desc *fabric; 2094 struct ipr_hostrcb_config_element *cfg; 2095 int i, add_len; 2096 2097 error = &hostrcb->hcam.u.error.u.type_20_error; 2098 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2099 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2100 2101 add_len = be32_to_cpu(hostrcb->hcam.length) - 2102 (offsetof(struct ipr_hostrcb_error, u) + 2103 offsetof(struct ipr_hostrcb_type_20_error, desc)); 2104 2105 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2106 ipr_log_fabric_path(hostrcb, fabric); 2107 for_each_fabric_cfg(fabric, cfg) 2108 ipr_log_path_elem(hostrcb, cfg); 2109 2110 add_len -= be16_to_cpu(fabric->length); 2111 fabric = (struct ipr_hostrcb_fabric_desc *) 2112 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2113 } 2114 2115 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2116} 2117 2118/** 2119 * ipr_log_sis64_array_error - Log a sis64 array error. 2120 * @ioa_cfg: ioa config struct 2121 * @hostrcb: hostrcb struct 2122 * 2123 * Return value: 2124 * none 2125 **/ 2126static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, 2127 struct ipr_hostrcb *hostrcb) 2128{ 2129 int i, num_entries; 2130 struct ipr_hostrcb_type_24_error *error; 2131 struct ipr_hostrcb64_array_data_entry *array_entry; 2132 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2133 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 2134 2135 error = &hostrcb->hcam.u.error64.u.type_24_error; 2136 2137 ipr_err_separator; 2138 2139 ipr_err("RAID %s Array Configuration: %s\n", 2140 error->protection_level, 2141 ipr_format_resource_path(&error->last_res_path[0], &buffer[0])); 2142 2143 ipr_err_separator; 2144 2145 array_entry = error->array_member; 2146 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 2147 sizeof(error->array_member)); 2148 2149 for (i = 0; i < num_entries; i++, array_entry++) { 2150 2151 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 2152 continue; 2153 2154 if (error->exposed_mode_adn == i) 2155 ipr_err("Exposed Array Member %d:\n", i); 2156 else 2157 ipr_err("Array Member %d:\n", i); 2158 2159 ipr_err("Array Member %d:\n", i); 2160 ipr_log_ext_vpd(&array_entry->vpd); 2161 ipr_err("Current Location: %s", 2162 ipr_format_resource_path(&array_entry->res_path[0], &buffer[0])); 2163 ipr_err("Expected Location: %s", 2164 ipr_format_resource_path(&array_entry->expected_res_path[0], &buffer[0])); 2165 2166 ipr_err_separator; 2167 } 2168} 2169 2170/** 2171 * ipr_log_sis64_fabric_error - Log a sis64 fabric error. 2172 * @ioa_cfg: ioa config struct 2173 * @hostrcb: hostrcb struct 2174 * 2175 * Return value: 2176 * none 2177 **/ 2178static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2179 struct ipr_hostrcb *hostrcb) 2180{ 2181 struct ipr_hostrcb_type_30_error *error; 2182 struct ipr_hostrcb64_fabric_desc *fabric; 2183 struct ipr_hostrcb64_config_element *cfg; 2184 int i, add_len; 2185 2186 error = &hostrcb->hcam.u.error64.u.type_30_error; 2187 2188 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2189 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2190 2191 add_len = be32_to_cpu(hostrcb->hcam.length) - 2192 (offsetof(struct ipr_hostrcb64_error, u) + 2193 offsetof(struct ipr_hostrcb_type_30_error, desc)); 2194 2195 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2196 ipr_log64_fabric_path(hostrcb, fabric); 2197 for_each_fabric_cfg(fabric, cfg) 2198 ipr_log64_path_elem(hostrcb, cfg); 2199 2200 add_len -= be16_to_cpu(fabric->length); 2201 fabric = (struct ipr_hostrcb64_fabric_desc *) 2202 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2203 } 2204 2205 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2206} 2207 2208/** 2209 * ipr_log_generic_error - Log an adapter error. 2210 * @ioa_cfg: ioa config struct 2211 * @hostrcb: hostrcb struct 2212 * 2213 * Return value: 2214 * none 2215 **/ 2216static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 2217 struct ipr_hostrcb *hostrcb) 2218{ 2219 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 2220 be32_to_cpu(hostrcb->hcam.length)); 2221} 2222 2223/** 2224 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 2225 * @ioasc: IOASC 2226 * 2227 * This function will return the index of into the ipr_error_table 2228 * for the specified IOASC. If the IOASC is not in the table, 2229 * 0 will be returned, which points to the entry used for unknown errors. 2230 * 2231 * Return value: 2232 * index into the ipr_error_table 2233 **/ 2234static u32 ipr_get_error(u32 ioasc) 2235{ 2236 int i; 2237 2238 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 2239 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 2240 return i; 2241 2242 return 0; 2243} 2244 2245/** 2246 * ipr_handle_log_data - Log an adapter error. 2247 * @ioa_cfg: ioa config struct 2248 * @hostrcb: hostrcb struct 2249 * 2250 * This function logs an adapter error to the system. 2251 * 2252 * Return value: 2253 * none 2254 **/ 2255static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 2256 struct ipr_hostrcb *hostrcb) 2257{ 2258 u32 ioasc; 2259 int error_index; 2260 2261 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 2262 return; 2263 2264 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 2265 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 2266 2267 if (ioa_cfg->sis64) 2268 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2269 else 2270 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2271 2272 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || 2273 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { 2274 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 2275 scsi_report_bus_reset(ioa_cfg->host, 2276 hostrcb->hcam.u.error.fd_res_addr.bus); 2277 } 2278 2279 error_index = ipr_get_error(ioasc); 2280 2281 if (!ipr_error_table[error_index].log_hcam) 2282 return; 2283 2284 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 2285 2286 /* Set indication we have logged an error */ 2287 ioa_cfg->errors_logged++; 2288 2289 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 2290 return; 2291 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 2292 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 2293 2294 switch (hostrcb->hcam.overlay_id) { 2295 case IPR_HOST_RCB_OVERLAY_ID_2: 2296 ipr_log_cache_error(ioa_cfg, hostrcb); 2297 break; 2298 case IPR_HOST_RCB_OVERLAY_ID_3: 2299 ipr_log_config_error(ioa_cfg, hostrcb); 2300 break; 2301 case IPR_HOST_RCB_OVERLAY_ID_4: 2302 case IPR_HOST_RCB_OVERLAY_ID_6: 2303 ipr_log_array_error(ioa_cfg, hostrcb); 2304 break; 2305 case IPR_HOST_RCB_OVERLAY_ID_7: 2306 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 2307 break; 2308 case IPR_HOST_RCB_OVERLAY_ID_12: 2309 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 2310 break; 2311 case IPR_HOST_RCB_OVERLAY_ID_13: 2312 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 2313 break; 2314 case IPR_HOST_RCB_OVERLAY_ID_14: 2315 case IPR_HOST_RCB_OVERLAY_ID_16: 2316 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 2317 break; 2318 case IPR_HOST_RCB_OVERLAY_ID_17: 2319 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 2320 break; 2321 case IPR_HOST_RCB_OVERLAY_ID_20: 2322 ipr_log_fabric_error(ioa_cfg, hostrcb); 2323 break; 2324 case IPR_HOST_RCB_OVERLAY_ID_23: 2325 ipr_log_sis64_config_error(ioa_cfg, hostrcb); 2326 break; 2327 case IPR_HOST_RCB_OVERLAY_ID_24: 2328 case IPR_HOST_RCB_OVERLAY_ID_26: 2329 ipr_log_sis64_array_error(ioa_cfg, hostrcb); 2330 break; 2331 case IPR_HOST_RCB_OVERLAY_ID_30: 2332 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); 2333 break; 2334 case IPR_HOST_RCB_OVERLAY_ID_1: 2335 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 2336 default: 2337 ipr_log_generic_error(ioa_cfg, hostrcb); 2338 break; 2339 } 2340} 2341 2342/** 2343 * ipr_process_error - Op done function for an adapter error log. 2344 * @ipr_cmd: ipr command struct 2345 * 2346 * This function is the op done function for an error log host 2347 * controlled async from the adapter. It will log the error and 2348 * send the HCAM back to the adapter. 2349 * 2350 * Return value: 2351 * none 2352 **/ 2353static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 2354{ 2355 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2356 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 2357 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 2358 u32 fd_ioasc; 2359 2360 if (ioa_cfg->sis64) 2361 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2362 else 2363 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2364 2365 list_del(&hostrcb->queue); 2366 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 2367 2368 if (!ioasc) { 2369 ipr_handle_log_data(ioa_cfg, hostrcb); 2370 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 2371 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 2372 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 2373 dev_err(&ioa_cfg->pdev->dev, 2374 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 2375 } 2376 2377 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 2378} 2379 2380/** 2381 * ipr_timeout - An internally generated op has timed out. 2382 * @ipr_cmd: ipr command struct 2383 * 2384 * This function blocks host requests and initiates an 2385 * adapter reset. 2386 * 2387 * Return value: 2388 * none 2389 **/ 2390static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 2391{ 2392 unsigned long lock_flags = 0; 2393 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2394 2395 ENTER; 2396 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2397 2398 ioa_cfg->errors_logged++; 2399 dev_err(&ioa_cfg->pdev->dev, 2400 "Adapter being reset due to command timeout.\n"); 2401 2402 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2403 ioa_cfg->sdt_state = GET_DUMP; 2404 2405 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 2406 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2407 2408 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2409 LEAVE; 2410} 2411 2412/** 2413 * ipr_oper_timeout - Adapter timed out transitioning to operational 2414 * @ipr_cmd: ipr command struct 2415 * 2416 * This function blocks host requests and initiates an 2417 * adapter reset. 2418 * 2419 * Return value: 2420 * none 2421 **/ 2422static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 2423{ 2424 unsigned long lock_flags = 0; 2425 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2426 2427 ENTER; 2428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2429 2430 ioa_cfg->errors_logged++; 2431 dev_err(&ioa_cfg->pdev->dev, 2432 "Adapter timed out transitioning to operational.\n"); 2433 2434 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2435 ioa_cfg->sdt_state = GET_DUMP; 2436 2437 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 2438 if (ipr_fastfail) 2439 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 2440 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2441 } 2442 2443 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2444 LEAVE; 2445} 2446 2447/** 2448 * ipr_reset_reload - Reset/Reload the IOA 2449 * @ioa_cfg: ioa config struct 2450 * @shutdown_type: shutdown type 2451 * 2452 * This function resets the adapter and re-initializes it. 2453 * This function assumes that all new host commands have been stopped. 2454 * Return value: 2455 * SUCCESS / FAILED 2456 **/ 2457static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 2458 enum ipr_shutdown_type shutdown_type) 2459{ 2460 if (!ioa_cfg->in_reset_reload) 2461 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 2462 2463 spin_unlock_irq(ioa_cfg->host->host_lock); 2464 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2465 spin_lock_irq(ioa_cfg->host->host_lock); 2466 2467 /* If we got hit with a host reset while we were already resetting 2468 the adapter for some reason, and the reset failed. */ 2469 if (ioa_cfg->ioa_is_dead) { 2470 ipr_trace; 2471 return FAILED; 2472 } 2473 2474 return SUCCESS; 2475} 2476 2477/** 2478 * ipr_find_ses_entry - Find matching SES in SES table 2479 * @res: resource entry struct of SES 2480 * 2481 * Return value: 2482 * pointer to SES table entry / NULL on failure 2483 **/ 2484static const struct ipr_ses_table_entry * 2485ipr_find_ses_entry(struct ipr_resource_entry *res) 2486{ 2487 int i, j, matches; 2488 struct ipr_std_inq_vpids *vpids; 2489 const struct ipr_ses_table_entry *ste = ipr_ses_table; 2490 2491 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 2492 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 2493 if (ste->compare_product_id_byte[j] == 'X') { 2494 vpids = &res->std_inq_data.vpids; 2495 if (vpids->product_id[j] == ste->product_id[j]) 2496 matches++; 2497 else 2498 break; 2499 } else 2500 matches++; 2501 } 2502 2503 if (matches == IPR_PROD_ID_LEN) 2504 return ste; 2505 } 2506 2507 return NULL; 2508} 2509 2510/** 2511 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 2512 * @ioa_cfg: ioa config struct 2513 * @bus: SCSI bus 2514 * @bus_width: bus width 2515 * 2516 * Return value: 2517 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 2518 * For a 2-byte wide SCSI bus, the maximum transfer speed is 2519 * twice the maximum transfer rate (e.g. for a wide enabled bus, 2520 * max 160MHz = max 320MB/sec). 2521 **/ 2522static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 2523{ 2524 struct ipr_resource_entry *res; 2525 const struct ipr_ses_table_entry *ste; 2526 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 2527 2528 /* Loop through each config table entry in the config table buffer */ 2529 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2530 if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) 2531 continue; 2532 2533 if (bus != res->bus) 2534 continue; 2535 2536 if (!(ste = ipr_find_ses_entry(res))) 2537 continue; 2538 2539 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 2540 } 2541 2542 return max_xfer_rate; 2543} 2544 2545/** 2546 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 2547 * @ioa_cfg: ioa config struct 2548 * @max_delay: max delay in micro-seconds to wait 2549 * 2550 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 2551 * 2552 * Return value: 2553 * 0 on success / other on failure 2554 **/ 2555static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 2556{ 2557 volatile u32 pcii_reg; 2558 int delay = 1; 2559 2560 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 2561 while (delay < max_delay) { 2562 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 2563 2564 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 2565 return 0; 2566 2567 /* udelay cannot be used if delay is more than a few milliseconds */ 2568 if ((delay / 1000) > MAX_UDELAY_MS) 2569 mdelay(delay / 1000); 2570 else 2571 udelay(delay); 2572 2573 delay += delay; 2574 } 2575 return -EIO; 2576} 2577 2578/** 2579 * ipr_get_sis64_dump_data_section - Dump IOA memory 2580 * @ioa_cfg: ioa config struct 2581 * @start_addr: adapter address to dump 2582 * @dest: destination kernel buffer 2583 * @length_in_words: length to dump in 4 byte words 2584 * 2585 * Return value: 2586 * 0 on success 2587 **/ 2588static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2589 u32 start_addr, 2590 __be32 *dest, u32 length_in_words) 2591{ 2592 int i; 2593 2594 for (i = 0; i < length_in_words; i++) { 2595 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); 2596 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); 2597 dest++; 2598 } 2599 2600 return 0; 2601} 2602 2603/** 2604 * ipr_get_ldump_data_section - Dump IOA memory 2605 * @ioa_cfg: ioa config struct 2606 * @start_addr: adapter address to dump 2607 * @dest: destination kernel buffer 2608 * @length_in_words: length to dump in 4 byte words 2609 * 2610 * Return value: 2611 * 0 on success / -EIO on failure 2612 **/ 2613static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2614 u32 start_addr, 2615 __be32 *dest, u32 length_in_words) 2616{ 2617 volatile u32 temp_pcii_reg; 2618 int i, delay = 0; 2619 2620 if (ioa_cfg->sis64) 2621 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, 2622 dest, length_in_words); 2623 2624 /* Write IOA interrupt reg starting LDUMP state */ 2625 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 2626 ioa_cfg->regs.set_uproc_interrupt_reg32); 2627 2628 /* Wait for IO debug acknowledge */ 2629 if (ipr_wait_iodbg_ack(ioa_cfg, 2630 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 2631 dev_err(&ioa_cfg->pdev->dev, 2632 "IOA dump long data transfer timeout\n"); 2633 return -EIO; 2634 } 2635 2636 /* Signal LDUMP interlocked - clear IO debug ack */ 2637 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2638 ioa_cfg->regs.clr_interrupt_reg); 2639 2640 /* Write Mailbox with starting address */ 2641 writel(start_addr, ioa_cfg->ioa_mailbox); 2642 2643 /* Signal address valid - clear IOA Reset alert */ 2644 writel(IPR_UPROCI_RESET_ALERT, 2645 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2646 2647 for (i = 0; i < length_in_words; i++) { 2648 /* Wait for IO debug acknowledge */ 2649 if (ipr_wait_iodbg_ack(ioa_cfg, 2650 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2651 dev_err(&ioa_cfg->pdev->dev, 2652 "IOA dump short data transfer timeout\n"); 2653 return -EIO; 2654 } 2655 2656 /* Read data from mailbox and increment destination pointer */ 2657 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2658 dest++; 2659 2660 /* For all but the last word of data, signal data received */ 2661 if (i < (length_in_words - 1)) { 2662 /* Signal dump data received - Clear IO debug Ack */ 2663 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2664 ioa_cfg->regs.clr_interrupt_reg); 2665 } 2666 } 2667 2668 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2669 writel(IPR_UPROCI_RESET_ALERT, 2670 ioa_cfg->regs.set_uproc_interrupt_reg32); 2671 2672 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2673 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2674 2675 /* Signal dump data received - Clear IO debug Ack */ 2676 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2677 ioa_cfg->regs.clr_interrupt_reg); 2678 2679 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2680 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2681 temp_pcii_reg = 2682 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 2683 2684 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2685 return 0; 2686 2687 udelay(10); 2688 delay += 10; 2689 } 2690 2691 return 0; 2692} 2693 2694#ifdef CONFIG_SCSI_IPR_DUMP 2695/** 2696 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2697 * @ioa_cfg: ioa config struct 2698 * @pci_address: adapter address 2699 * @length: length of data to copy 2700 * 2701 * Copy data from PCI adapter to kernel buffer. 2702 * Note: length MUST be a 4 byte multiple 2703 * Return value: 2704 * 0 on success / other on failure 2705 **/ 2706static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2707 unsigned long pci_address, u32 length) 2708{ 2709 int bytes_copied = 0; 2710 int cur_len, rc, rem_len, rem_page_len; 2711 __be32 *page; 2712 unsigned long lock_flags = 0; 2713 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2714 2715 while (bytes_copied < length && 2716 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2717 if (ioa_dump->page_offset >= PAGE_SIZE || 2718 ioa_dump->page_offset == 0) { 2719 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2720 2721 if (!page) { 2722 ipr_trace; 2723 return bytes_copied; 2724 } 2725 2726 ioa_dump->page_offset = 0; 2727 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2728 ioa_dump->next_page_index++; 2729 } else 2730 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2731 2732 rem_len = length - bytes_copied; 2733 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2734 cur_len = min(rem_len, rem_page_len); 2735 2736 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2737 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2738 rc = -EIO; 2739 } else { 2740 rc = ipr_get_ldump_data_section(ioa_cfg, 2741 pci_address + bytes_copied, 2742 &page[ioa_dump->page_offset / 4], 2743 (cur_len / sizeof(u32))); 2744 } 2745 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2746 2747 if (!rc) { 2748 ioa_dump->page_offset += cur_len; 2749 bytes_copied += cur_len; 2750 } else { 2751 ipr_trace; 2752 break; 2753 } 2754 schedule(); 2755 } 2756 2757 return bytes_copied; 2758} 2759 2760/** 2761 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2762 * @hdr: dump entry header struct 2763 * 2764 * Return value: 2765 * nothing 2766 **/ 2767static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2768{ 2769 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2770 hdr->num_elems = 1; 2771 hdr->offset = sizeof(*hdr); 2772 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2773} 2774 2775/** 2776 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2777 * @ioa_cfg: ioa config struct 2778 * @driver_dump: driver dump struct 2779 * 2780 * Return value: 2781 * nothing 2782 **/ 2783static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2784 struct ipr_driver_dump *driver_dump) 2785{ 2786 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2787 2788 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2789 driver_dump->ioa_type_entry.hdr.len = 2790 sizeof(struct ipr_dump_ioa_type_entry) - 2791 sizeof(struct ipr_dump_entry_header); 2792 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2793 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2794 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2795 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2796 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2797 ucode_vpd->minor_release[1]; 2798 driver_dump->hdr.num_entries++; 2799} 2800 2801/** 2802 * ipr_dump_version_data - Fill in the driver version in the dump. 2803 * @ioa_cfg: ioa config struct 2804 * @driver_dump: driver dump struct 2805 * 2806 * Return value: 2807 * nothing 2808 **/ 2809static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2810 struct ipr_driver_dump *driver_dump) 2811{ 2812 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2813 driver_dump->version_entry.hdr.len = 2814 sizeof(struct ipr_dump_version_entry) - 2815 sizeof(struct ipr_dump_entry_header); 2816 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2817 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2818 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2819 driver_dump->hdr.num_entries++; 2820} 2821 2822/** 2823 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2824 * @ioa_cfg: ioa config struct 2825 * @driver_dump: driver dump struct 2826 * 2827 * Return value: 2828 * nothing 2829 **/ 2830static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2831 struct ipr_driver_dump *driver_dump) 2832{ 2833 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2834 driver_dump->trace_entry.hdr.len = 2835 sizeof(struct ipr_dump_trace_entry) - 2836 sizeof(struct ipr_dump_entry_header); 2837 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2838 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2839 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2840 driver_dump->hdr.num_entries++; 2841} 2842 2843/** 2844 * ipr_dump_location_data - Fill in the IOA location in the dump. 2845 * @ioa_cfg: ioa config struct 2846 * @driver_dump: driver dump struct 2847 * 2848 * Return value: 2849 * nothing 2850 **/ 2851static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2852 struct ipr_driver_dump *driver_dump) 2853{ 2854 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2855 driver_dump->location_entry.hdr.len = 2856 sizeof(struct ipr_dump_location_entry) - 2857 sizeof(struct ipr_dump_entry_header); 2858 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2859 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2860 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2861 driver_dump->hdr.num_entries++; 2862} 2863 2864/** 2865 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2866 * @ioa_cfg: ioa config struct 2867 * @dump: dump struct 2868 * 2869 * Return value: 2870 * nothing 2871 **/ 2872static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2873{ 2874 unsigned long start_addr, sdt_word; 2875 unsigned long lock_flags = 0; 2876 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2877 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2878 u32 num_entries, start_off, end_off; 2879 u32 bytes_to_copy, bytes_copied, rc; 2880 struct ipr_sdt *sdt; 2881 int valid = 1; 2882 int i; 2883 2884 ENTER; 2885 2886 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2887 2888 if (ioa_cfg->sdt_state != GET_DUMP) { 2889 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2890 return; 2891 } 2892 2893 start_addr = readl(ioa_cfg->ioa_mailbox); 2894 2895 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { 2896 dev_err(&ioa_cfg->pdev->dev, 2897 "Invalid dump table format: %lx\n", start_addr); 2898 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2899 return; 2900 } 2901 2902 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2903 2904 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2905 2906 /* Initialize the overall dump header */ 2907 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2908 driver_dump->hdr.num_entries = 1; 2909 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2910 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2911 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2912 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2913 2914 ipr_dump_version_data(ioa_cfg, driver_dump); 2915 ipr_dump_location_data(ioa_cfg, driver_dump); 2916 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2917 ipr_dump_trace_data(ioa_cfg, driver_dump); 2918 2919 /* Update dump_header */ 2920 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2921 2922 /* IOA Dump entry */ 2923 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2924 ioa_dump->hdr.len = 0; 2925 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2926 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2927 2928 /* First entries in sdt are actually a list of dump addresses and 2929 lengths to gather the real dump data. sdt represents the pointer 2930 to the ioa generated dump table. Dump data will be extracted based 2931 on entries in this table */ 2932 sdt = &ioa_dump->sdt; 2933 2934 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2935 sizeof(struct ipr_sdt) / sizeof(__be32)); 2936 2937 /* Smart Dump table is ready to use and the first entry is valid */ 2938 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 2939 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 2940 dev_err(&ioa_cfg->pdev->dev, 2941 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2942 rc, be32_to_cpu(sdt->hdr.state)); 2943 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2944 ioa_cfg->sdt_state = DUMP_OBTAINED; 2945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2946 return; 2947 } 2948 2949 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2950 2951 if (num_entries > IPR_NUM_SDT_ENTRIES) 2952 num_entries = IPR_NUM_SDT_ENTRIES; 2953 2954 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2955 2956 for (i = 0; i < num_entries; i++) { 2957 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2958 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2959 break; 2960 } 2961 2962 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2963 sdt_word = be32_to_cpu(sdt->entry[i].start_token); 2964 if (ioa_cfg->sis64) 2965 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); 2966 else { 2967 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2968 end_off = be32_to_cpu(sdt->entry[i].end_token); 2969 2970 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) 2971 bytes_to_copy = end_off - start_off; 2972 else 2973 valid = 0; 2974 } 2975 if (valid) { 2976 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2977 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2978 continue; 2979 } 2980 2981 /* Copy data from adapter to driver buffers */ 2982 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2983 bytes_to_copy); 2984 2985 ioa_dump->hdr.len += bytes_copied; 2986 2987 if (bytes_copied != bytes_to_copy) { 2988 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2989 break; 2990 } 2991 } 2992 } 2993 } 2994 2995 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 2996 2997 /* Update dump_header */ 2998 driver_dump->hdr.len += ioa_dump->hdr.len; 2999 wmb(); 3000 ioa_cfg->sdt_state = DUMP_OBTAINED; 3001 LEAVE; 3002} 3003 3004#else 3005#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 3006#endif 3007 3008/** 3009 * ipr_release_dump - Free adapter dump memory 3010 * @kref: kref struct 3011 * 3012 * Return value: 3013 * nothing 3014 **/ 3015static void ipr_release_dump(struct kref *kref) 3016{ 3017 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 3018 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 3019 unsigned long lock_flags = 0; 3020 int i; 3021 3022 ENTER; 3023 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3024 ioa_cfg->dump = NULL; 3025 ioa_cfg->sdt_state = INACTIVE; 3026 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3027 3028 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 3029 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 3030 3031 kfree(dump); 3032 LEAVE; 3033} 3034 3035/** 3036 * ipr_worker_thread - Worker thread 3037 * @work: ioa config struct 3038 * 3039 * Called at task level from a work thread. This function takes care 3040 * of adding and removing device from the mid-layer as configuration 3041 * changes are detected by the adapter. 3042 * 3043 * Return value: 3044 * nothing 3045 **/ 3046static void ipr_worker_thread(struct work_struct *work) 3047{ 3048 unsigned long lock_flags; 3049 struct ipr_resource_entry *res; 3050 struct scsi_device *sdev; 3051 struct ipr_dump *dump; 3052 struct ipr_ioa_cfg *ioa_cfg = 3053 container_of(work, struct ipr_ioa_cfg, work_q); 3054 u8 bus, target, lun; 3055 int did_work; 3056 3057 ENTER; 3058 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3059 3060 if (ioa_cfg->sdt_state == GET_DUMP) { 3061 dump = ioa_cfg->dump; 3062 if (!dump) { 3063 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3064 return; 3065 } 3066 kref_get(&dump->kref); 3067 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3068 ipr_get_ioa_dump(ioa_cfg, dump); 3069 kref_put(&dump->kref, ipr_release_dump); 3070 3071 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3072 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 3073 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3074 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3075 return; 3076 } 3077 3078restart: 3079 do { 3080 did_work = 0; 3081 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 3082 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3083 return; 3084 } 3085 3086 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3087 if (res->del_from_ml && res->sdev) { 3088 did_work = 1; 3089 sdev = res->sdev; 3090 if (!scsi_device_get(sdev)) { 3091 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3093 scsi_remove_device(sdev); 3094 scsi_device_put(sdev); 3095 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3096 } 3097 break; 3098 } 3099 } 3100 } while(did_work); 3101 3102 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3103 if (res->add_to_ml) { 3104 bus = res->bus; 3105 target = res->target; 3106 lun = res->lun; 3107 res->add_to_ml = 0; 3108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3109 scsi_add_device(ioa_cfg->host, bus, target, lun); 3110 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3111 goto restart; 3112 } 3113 } 3114 3115 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3116 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3117 LEAVE; 3118} 3119 3120#ifdef CONFIG_SCSI_IPR_TRACE 3121/** 3122 * ipr_read_trace - Dump the adapter trace 3123 * @filp: open sysfs file 3124 * @kobj: kobject struct 3125 * @bin_attr: bin_attribute struct 3126 * @buf: buffer 3127 * @off: offset 3128 * @count: buffer size 3129 * 3130 * Return value: 3131 * number of bytes printed to buffer 3132 **/ 3133static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, 3134 struct bin_attribute *bin_attr, 3135 char *buf, loff_t off, size_t count) 3136{ 3137 struct device *dev = container_of(kobj, struct device, kobj); 3138 struct Scsi_Host *shost = class_to_shost(dev); 3139 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3140 unsigned long lock_flags = 0; 3141 ssize_t ret; 3142 3143 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3144 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3145 IPR_TRACE_SIZE); 3146 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3147 3148 return ret; 3149} 3150 3151static struct bin_attribute ipr_trace_attr = { 3152 .attr = { 3153 .name = "trace", 3154 .mode = S_IRUGO, 3155 }, 3156 .size = 0, 3157 .read = ipr_read_trace, 3158}; 3159#endif 3160 3161/** 3162 * ipr_show_fw_version - Show the firmware version 3163 * @dev: class device struct 3164 * @buf: buffer 3165 * 3166 * Return value: 3167 * number of bytes printed to buffer 3168 **/ 3169static ssize_t ipr_show_fw_version(struct device *dev, 3170 struct device_attribute *attr, char *buf) 3171{ 3172 struct Scsi_Host *shost = class_to_shost(dev); 3173 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3174 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3175 unsigned long lock_flags = 0; 3176 int len; 3177 3178 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3179 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3180 ucode_vpd->major_release, ucode_vpd->card_type, 3181 ucode_vpd->minor_release[0], 3182 ucode_vpd->minor_release[1]); 3183 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3184 return len; 3185} 3186 3187static struct device_attribute ipr_fw_version_attr = { 3188 .attr = { 3189 .name = "fw_version", 3190 .mode = S_IRUGO, 3191 }, 3192 .show = ipr_show_fw_version, 3193}; 3194 3195/** 3196 * ipr_show_log_level - Show the adapter's error logging level 3197 * @dev: class device struct 3198 * @buf: buffer 3199 * 3200 * Return value: 3201 * number of bytes printed to buffer 3202 **/ 3203static ssize_t ipr_show_log_level(struct device *dev, 3204 struct device_attribute *attr, char *buf) 3205{ 3206 struct Scsi_Host *shost = class_to_shost(dev); 3207 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3208 unsigned long lock_flags = 0; 3209 int len; 3210 3211 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3212 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3213 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3214 return len; 3215} 3216 3217/** 3218 * ipr_store_log_level - Change the adapter's error logging level 3219 * @dev: class device struct 3220 * @buf: buffer 3221 * 3222 * Return value: 3223 * number of bytes printed to buffer 3224 **/ 3225static ssize_t ipr_store_log_level(struct device *dev, 3226 struct device_attribute *attr, 3227 const char *buf, size_t count) 3228{ 3229 struct Scsi_Host *shost = class_to_shost(dev); 3230 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3231 unsigned long lock_flags = 0; 3232 3233 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3234 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3235 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3236 return strlen(buf); 3237} 3238 3239static struct device_attribute ipr_log_level_attr = { 3240 .attr = { 3241 .name = "log_level", 3242 .mode = S_IRUGO | S_IWUSR, 3243 }, 3244 .show = ipr_show_log_level, 3245 .store = ipr_store_log_level 3246}; 3247 3248/** 3249 * ipr_store_diagnostics - IOA Diagnostics interface 3250 * @dev: device struct 3251 * @buf: buffer 3252 * @count: buffer size 3253 * 3254 * This function will reset the adapter and wait a reasonable 3255 * amount of time for any errors that the adapter might log. 3256 * 3257 * Return value: 3258 * count on success / other on failure 3259 **/ 3260static ssize_t ipr_store_diagnostics(struct device *dev, 3261 struct device_attribute *attr, 3262 const char *buf, size_t count) 3263{ 3264 struct Scsi_Host *shost = class_to_shost(dev); 3265 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3266 unsigned long lock_flags = 0; 3267 int rc = count; 3268 3269 if (!capable(CAP_SYS_ADMIN)) 3270 return -EACCES; 3271 3272 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3273 while(ioa_cfg->in_reset_reload) { 3274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3275 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3276 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3277 } 3278 3279 ioa_cfg->errors_logged = 0; 3280 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3281 3282 if (ioa_cfg->in_reset_reload) { 3283 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3284 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3285 3286 /* Wait for a second for any errors to be logged */ 3287 msleep(1000); 3288 } else { 3289 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3290 return -EIO; 3291 } 3292 3293 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3294 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3295 rc = -EIO; 3296 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3297 3298 return rc; 3299} 3300 3301static struct device_attribute ipr_diagnostics_attr = { 3302 .attr = { 3303 .name = "run_diagnostics", 3304 .mode = S_IWUSR, 3305 }, 3306 .store = ipr_store_diagnostics 3307}; 3308 3309/** 3310 * ipr_show_adapter_state - Show the adapter's state 3311 * @class_dev: device struct 3312 * @buf: buffer 3313 * 3314 * Return value: 3315 * number of bytes printed to buffer 3316 **/ 3317static ssize_t ipr_show_adapter_state(struct device *dev, 3318 struct device_attribute *attr, char *buf) 3319{ 3320 struct Scsi_Host *shost = class_to_shost(dev); 3321 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3322 unsigned long lock_flags = 0; 3323 int len; 3324 3325 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3326 if (ioa_cfg->ioa_is_dead) 3327 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3328 else 3329 len = snprintf(buf, PAGE_SIZE, "online\n"); 3330 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3331 return len; 3332} 3333 3334/** 3335 * ipr_store_adapter_state - Change adapter state 3336 * @dev: device struct 3337 * @buf: buffer 3338 * @count: buffer size 3339 * 3340 * This function will change the adapter's state. 3341 * 3342 * Return value: 3343 * count on success / other on failure 3344 **/ 3345static ssize_t ipr_store_adapter_state(struct device *dev, 3346 struct device_attribute *attr, 3347 const char *buf, size_t count) 3348{ 3349 struct Scsi_Host *shost = class_to_shost(dev); 3350 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3351 unsigned long lock_flags; 3352 int result = count; 3353 3354 if (!capable(CAP_SYS_ADMIN)) 3355 return -EACCES; 3356 3357 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3358 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 3359 ioa_cfg->ioa_is_dead = 0; 3360 ioa_cfg->reset_retries = 0; 3361 ioa_cfg->in_ioa_bringdown = 0; 3362 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3363 } 3364 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3365 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3366 3367 return result; 3368} 3369 3370static struct device_attribute ipr_ioa_state_attr = { 3371 .attr = { 3372 .name = "online_state", 3373 .mode = S_IRUGO | S_IWUSR, 3374 }, 3375 .show = ipr_show_adapter_state, 3376 .store = ipr_store_adapter_state 3377}; 3378 3379/** 3380 * ipr_store_reset_adapter - Reset the adapter 3381 * @dev: device struct 3382 * @buf: buffer 3383 * @count: buffer size 3384 * 3385 * This function will reset the adapter. 3386 * 3387 * Return value: 3388 * count on success / other on failure 3389 **/ 3390static ssize_t ipr_store_reset_adapter(struct device *dev, 3391 struct device_attribute *attr, 3392 const char *buf, size_t count) 3393{ 3394 struct Scsi_Host *shost = class_to_shost(dev); 3395 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3396 unsigned long lock_flags; 3397 int result = count; 3398 3399 if (!capable(CAP_SYS_ADMIN)) 3400 return -EACCES; 3401 3402 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3403 if (!ioa_cfg->in_reset_reload) 3404 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3405 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3406 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3407 3408 return result; 3409} 3410 3411static struct device_attribute ipr_ioa_reset_attr = { 3412 .attr = { 3413 .name = "reset_host", 3414 .mode = S_IWUSR, 3415 }, 3416 .store = ipr_store_reset_adapter 3417}; 3418 3419/** 3420 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3421 * @buf_len: buffer length 3422 * 3423 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3424 * list to use for microcode download 3425 * 3426 * Return value: 3427 * pointer to sglist / NULL on failure 3428 **/ 3429static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3430{ 3431 int sg_size, order, bsize_elem, num_elem, i, j; 3432 struct ipr_sglist *sglist; 3433 struct scatterlist *scatterlist; 3434 struct page *page; 3435 3436 /* Get the minimum size per scatter/gather element */ 3437 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3438 3439 /* Get the actual size per element */ 3440 order = get_order(sg_size); 3441 3442 /* Determine the actual number of bytes per element */ 3443 bsize_elem = PAGE_SIZE * (1 << order); 3444 3445 /* Determine the actual number of sg entries needed */ 3446 if (buf_len % bsize_elem) 3447 num_elem = (buf_len / bsize_elem) + 1; 3448 else 3449 num_elem = buf_len / bsize_elem; 3450 3451 /* Allocate a scatter/gather list for the DMA */ 3452 sglist = kzalloc(sizeof(struct ipr_sglist) + 3453 (sizeof(struct scatterlist) * (num_elem - 1)), 3454 GFP_KERNEL); 3455 3456 if (sglist == NULL) { 3457 ipr_trace; 3458 return NULL; 3459 } 3460 3461 scatterlist = sglist->scatterlist; 3462 sg_init_table(scatterlist, num_elem); 3463 3464 sglist->order = order; 3465 sglist->num_sg = num_elem; 3466 3467 /* Allocate a bunch of sg elements */ 3468 for (i = 0; i < num_elem; i++) { 3469 page = alloc_pages(GFP_KERNEL, order); 3470 if (!page) { 3471 ipr_trace; 3472 3473 /* Free up what we already allocated */ 3474 for (j = i - 1; j >= 0; j--) 3475 __free_pages(sg_page(&scatterlist[j]), order); 3476 kfree(sglist); 3477 return NULL; 3478 } 3479 3480 sg_set_page(&scatterlist[i], page, 0, 0); 3481 } 3482 3483 return sglist; 3484} 3485 3486/** 3487 * ipr_free_ucode_buffer - Frees a microcode download buffer 3488 * @p_dnld: scatter/gather list pointer 3489 * 3490 * Free a DMA'able ucode download buffer previously allocated with 3491 * ipr_alloc_ucode_buffer 3492 * 3493 * Return value: 3494 * nothing 3495 **/ 3496static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3497{ 3498 int i; 3499 3500 for (i = 0; i < sglist->num_sg; i++) 3501 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 3502 3503 kfree(sglist); 3504} 3505 3506/** 3507 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3508 * @sglist: scatter/gather list pointer 3509 * @buffer: buffer pointer 3510 * @len: buffer length 3511 * 3512 * Copy a microcode image from a user buffer into a buffer allocated by 3513 * ipr_alloc_ucode_buffer 3514 * 3515 * Return value: 3516 * 0 on success / other on failure 3517 **/ 3518static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3519 u8 *buffer, u32 len) 3520{ 3521 int bsize_elem, i, result = 0; 3522 struct scatterlist *scatterlist; 3523 void *kaddr; 3524 3525 /* Determine the actual number of bytes per element */ 3526 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3527 3528 scatterlist = sglist->scatterlist; 3529 3530 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 3531 struct page *page = sg_page(&scatterlist[i]); 3532 3533 kaddr = kmap(page); 3534 memcpy(kaddr, buffer, bsize_elem); 3535 kunmap(page); 3536 3537 scatterlist[i].length = bsize_elem; 3538 3539 if (result != 0) { 3540 ipr_trace; 3541 return result; 3542 } 3543 } 3544 3545 if (len % bsize_elem) { 3546 struct page *page = sg_page(&scatterlist[i]); 3547 3548 kaddr = kmap(page); 3549 memcpy(kaddr, buffer, len % bsize_elem); 3550 kunmap(page); 3551 3552 scatterlist[i].length = len % bsize_elem; 3553 } 3554 3555 sglist->buffer_len = len; 3556 return result; 3557} 3558 3559/** 3560 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3561 * @ipr_cmd: ipr command struct 3562 * @sglist: scatter/gather list 3563 * 3564 * Builds a microcode download IOA data list (IOADL). 3565 * 3566 **/ 3567static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3568 struct ipr_sglist *sglist) 3569{ 3570 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3571 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3572 struct scatterlist *scatterlist = sglist->scatterlist; 3573 int i; 3574 3575 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3576 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3577 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3578 3579 ioarcb->ioadl_len = 3580 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3581 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3582 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3583 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); 3584 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); 3585 } 3586 3587 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3588} 3589 3590/** 3591 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3592 * @ipr_cmd: ipr command struct 3593 * @sglist: scatter/gather list 3594 * 3595 * Builds a microcode download IOA data list (IOADL). 3596 * 3597 **/ 3598static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3599 struct ipr_sglist *sglist) 3600{ 3601 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3602 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3603 struct scatterlist *scatterlist = sglist->scatterlist; 3604 int i; 3605 3606 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3607 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3608 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3609 3610 ioarcb->ioadl_len = 3611 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3612 3613 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3614 ioadl[i].flags_and_data_len = 3615 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3616 ioadl[i].address = 3617 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3618 } 3619 3620 ioadl[i-1].flags_and_data_len |= 3621 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3622} 3623 3624/** 3625 * ipr_update_ioa_ucode - Update IOA's microcode 3626 * @ioa_cfg: ioa config struct 3627 * @sglist: scatter/gather list 3628 * 3629 * Initiate an adapter reset to update the IOA's microcode 3630 * 3631 * Return value: 3632 * 0 on success / -EIO on failure 3633 **/ 3634static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3635 struct ipr_sglist *sglist) 3636{ 3637 unsigned long lock_flags; 3638 3639 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3640 while(ioa_cfg->in_reset_reload) { 3641 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3642 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3643 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3644 } 3645 3646 if (ioa_cfg->ucode_sglist) { 3647 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3648 dev_err(&ioa_cfg->pdev->dev, 3649 "Microcode download already in progress\n"); 3650 return -EIO; 3651 } 3652 3653 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3654 sglist->num_sg, DMA_TO_DEVICE); 3655 3656 if (!sglist->num_dma_sg) { 3657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3658 dev_err(&ioa_cfg->pdev->dev, 3659 "Failed to map microcode download buffer!\n"); 3660 return -EIO; 3661 } 3662 3663 ioa_cfg->ucode_sglist = sglist; 3664 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3665 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3666 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3667 3668 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3669 ioa_cfg->ucode_sglist = NULL; 3670 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3671 return 0; 3672} 3673 3674/** 3675 * ipr_store_update_fw - Update the firmware on the adapter 3676 * @class_dev: device struct 3677 * @buf: buffer 3678 * @count: buffer size 3679 * 3680 * This function will update the firmware on the adapter. 3681 * 3682 * Return value: 3683 * count on success / other on failure 3684 **/ 3685static ssize_t ipr_store_update_fw(struct device *dev, 3686 struct device_attribute *attr, 3687 const char *buf, size_t count) 3688{ 3689 struct Scsi_Host *shost = class_to_shost(dev); 3690 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3691 struct ipr_ucode_image_header *image_hdr; 3692 const struct firmware *fw_entry; 3693 struct ipr_sglist *sglist; 3694 char fname[100]; 3695 char *src; 3696 int len, result, dnld_size; 3697 3698 if (!capable(CAP_SYS_ADMIN)) 3699 return -EACCES; 3700 3701 len = snprintf(fname, 99, "%s", buf); 3702 fname[len-1] = '\0'; 3703 3704 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3705 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3706 return -EIO; 3707 } 3708 3709 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3710 3711 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3712 (ioa_cfg->vpd_cbs->page3_data.card_type && 3713 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3714 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3715 release_firmware(fw_entry); 3716 return -EINVAL; 3717 } 3718 3719 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3720 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3721 sglist = ipr_alloc_ucode_buffer(dnld_size); 3722 3723 if (!sglist) { 3724 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3725 release_firmware(fw_entry); 3726 return -ENOMEM; 3727 } 3728 3729 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3730 3731 if (result) { 3732 dev_err(&ioa_cfg->pdev->dev, 3733 "Microcode buffer copy to DMA buffer failed\n"); 3734 goto out; 3735 } 3736 3737 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3738 3739 if (!result) 3740 result = count; 3741out: 3742 ipr_free_ucode_buffer(sglist); 3743 release_firmware(fw_entry); 3744 return result; 3745} 3746 3747static struct device_attribute ipr_update_fw_attr = { 3748 .attr = { 3749 .name = "update_fw", 3750 .mode = S_IWUSR, 3751 }, 3752 .store = ipr_store_update_fw 3753}; 3754 3755static struct device_attribute *ipr_ioa_attrs[] = { 3756 &ipr_fw_version_attr, 3757 &ipr_log_level_attr, 3758 &ipr_diagnostics_attr, 3759 &ipr_ioa_state_attr, 3760 &ipr_ioa_reset_attr, 3761 &ipr_update_fw_attr, 3762 NULL, 3763}; 3764 3765#ifdef CONFIG_SCSI_IPR_DUMP 3766/** 3767 * ipr_read_dump - Dump the adapter 3768 * @filp: open sysfs file 3769 * @kobj: kobject struct 3770 * @bin_attr: bin_attribute struct 3771 * @buf: buffer 3772 * @off: offset 3773 * @count: buffer size 3774 * 3775 * Return value: 3776 * number of bytes printed to buffer 3777 **/ 3778static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, 3779 struct bin_attribute *bin_attr, 3780 char *buf, loff_t off, size_t count) 3781{ 3782 struct device *cdev = container_of(kobj, struct device, kobj); 3783 struct Scsi_Host *shost = class_to_shost(cdev); 3784 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3785 struct ipr_dump *dump; 3786 unsigned long lock_flags = 0; 3787 char *src; 3788 int len; 3789 size_t rc = count; 3790 3791 if (!capable(CAP_SYS_ADMIN)) 3792 return -EACCES; 3793 3794 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3795 dump = ioa_cfg->dump; 3796 3797 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3798 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3799 return 0; 3800 } 3801 kref_get(&dump->kref); 3802 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3803 3804 if (off > dump->driver_dump.hdr.len) { 3805 kref_put(&dump->kref, ipr_release_dump); 3806 return 0; 3807 } 3808 3809 if (off + count > dump->driver_dump.hdr.len) { 3810 count = dump->driver_dump.hdr.len - off; 3811 rc = count; 3812 } 3813 3814 if (count && off < sizeof(dump->driver_dump)) { 3815 if (off + count > sizeof(dump->driver_dump)) 3816 len = sizeof(dump->driver_dump) - off; 3817 else 3818 len = count; 3819 src = (u8 *)&dump->driver_dump + off; 3820 memcpy(buf, src, len); 3821 buf += len; 3822 off += len; 3823 count -= len; 3824 } 3825 3826 off -= sizeof(dump->driver_dump); 3827 3828 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3829 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3830 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3831 else 3832 len = count; 3833 src = (u8 *)&dump->ioa_dump + off; 3834 memcpy(buf, src, len); 3835 buf += len; 3836 off += len; 3837 count -= len; 3838 } 3839 3840 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3841 3842 while (count) { 3843 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3844 len = PAGE_ALIGN(off) - off; 3845 else 3846 len = count; 3847 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3848 src += off & ~PAGE_MASK; 3849 memcpy(buf, src, len); 3850 buf += len; 3851 off += len; 3852 count -= len; 3853 } 3854 3855 kref_put(&dump->kref, ipr_release_dump); 3856 return rc; 3857} 3858 3859/** 3860 * ipr_alloc_dump - Prepare for adapter dump 3861 * @ioa_cfg: ioa config struct 3862 * 3863 * Return value: 3864 * 0 on success / other on failure 3865 **/ 3866static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3867{ 3868 struct ipr_dump *dump; 3869 unsigned long lock_flags = 0; 3870 3871 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3872 3873 if (!dump) { 3874 ipr_err("Dump memory allocation failed\n"); 3875 return -ENOMEM; 3876 } 3877 3878 kref_init(&dump->kref); 3879 dump->ioa_cfg = ioa_cfg; 3880 3881 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3882 3883 if (INACTIVE != ioa_cfg->sdt_state) { 3884 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3885 kfree(dump); 3886 return 0; 3887 } 3888 3889 ioa_cfg->dump = dump; 3890 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3891 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3892 ioa_cfg->dump_taken = 1; 3893 schedule_work(&ioa_cfg->work_q); 3894 } 3895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3896 3897 return 0; 3898} 3899 3900/** 3901 * ipr_free_dump - Free adapter dump memory 3902 * @ioa_cfg: ioa config struct 3903 * 3904 * Return value: 3905 * 0 on success / other on failure 3906 **/ 3907static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3908{ 3909 struct ipr_dump *dump; 3910 unsigned long lock_flags = 0; 3911 3912 ENTER; 3913 3914 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3915 dump = ioa_cfg->dump; 3916 if (!dump) { 3917 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3918 return 0; 3919 } 3920 3921 ioa_cfg->dump = NULL; 3922 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3923 3924 kref_put(&dump->kref, ipr_release_dump); 3925 3926 LEAVE; 3927 return 0; 3928} 3929 3930/** 3931 * ipr_write_dump - Setup dump state of adapter 3932 * @filp: open sysfs file 3933 * @kobj: kobject struct 3934 * @bin_attr: bin_attribute struct 3935 * @buf: buffer 3936 * @off: offset 3937 * @count: buffer size 3938 * 3939 * Return value: 3940 * number of bytes printed to buffer 3941 **/ 3942static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, 3943 struct bin_attribute *bin_attr, 3944 char *buf, loff_t off, size_t count) 3945{ 3946 struct device *cdev = container_of(kobj, struct device, kobj); 3947 struct Scsi_Host *shost = class_to_shost(cdev); 3948 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3949 int rc; 3950 3951 if (!capable(CAP_SYS_ADMIN)) 3952 return -EACCES; 3953 3954 if (buf[0] == '1') 3955 rc = ipr_alloc_dump(ioa_cfg); 3956 else if (buf[0] == '0') 3957 rc = ipr_free_dump(ioa_cfg); 3958 else 3959 return -EINVAL; 3960 3961 if (rc) 3962 return rc; 3963 else 3964 return count; 3965} 3966 3967static struct bin_attribute ipr_dump_attr = { 3968 .attr = { 3969 .name = "dump", 3970 .mode = S_IRUSR | S_IWUSR, 3971 }, 3972 .size = 0, 3973 .read = ipr_read_dump, 3974 .write = ipr_write_dump 3975}; 3976#else 3977static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3978#endif 3979 3980/** 3981 * ipr_change_queue_depth - Change the device's queue depth 3982 * @sdev: scsi device struct 3983 * @qdepth: depth to set 3984 * @reason: calling context 3985 * 3986 * Return value: 3987 * actual depth set 3988 **/ 3989static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, 3990 int reason) 3991{ 3992 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3993 struct ipr_resource_entry *res; 3994 unsigned long lock_flags = 0; 3995 3996 if (reason != SCSI_QDEPTH_DEFAULT) 3997 return -EOPNOTSUPP; 3998 3999 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4000 res = (struct ipr_resource_entry *)sdev->hostdata; 4001 4002 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 4003 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 4004 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4005 4006 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 4007 return sdev->queue_depth; 4008} 4009 4010/** 4011 * ipr_change_queue_type - Change the device's queue type 4012 * @dsev: scsi device struct 4013 * @tag_type: type of tags to use 4014 * 4015 * Return value: 4016 * actual queue type set 4017 **/ 4018static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 4019{ 4020 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4021 struct ipr_resource_entry *res; 4022 unsigned long lock_flags = 0; 4023 4024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4025 res = (struct ipr_resource_entry *)sdev->hostdata; 4026 4027 if (res) { 4028 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 4029 /* 4030 * We don't bother quiescing the device here since the 4031 * adapter firmware does it for us. 4032 */ 4033 scsi_set_tag_type(sdev, tag_type); 4034 4035 if (tag_type) 4036 scsi_activate_tcq(sdev, sdev->queue_depth); 4037 else 4038 scsi_deactivate_tcq(sdev, sdev->queue_depth); 4039 } else 4040 tag_type = 0; 4041 } else 4042 tag_type = 0; 4043 4044 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4045 return tag_type; 4046} 4047 4048/** 4049 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4050 * @dev: device struct 4051 * @buf: buffer 4052 * 4053 * Return value: 4054 * number of bytes printed to buffer 4055 **/ 4056static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4057{ 4058 struct scsi_device *sdev = to_scsi_device(dev); 4059 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4060 struct ipr_resource_entry *res; 4061 unsigned long lock_flags = 0; 4062 ssize_t len = -ENXIO; 4063 4064 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4065 res = (struct ipr_resource_entry *)sdev->hostdata; 4066 if (res) 4067 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4068 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4069 return len; 4070} 4071 4072static struct device_attribute ipr_adapter_handle_attr = { 4073 .attr = { 4074 .name = "adapter_handle", 4075 .mode = S_IRUSR, 4076 }, 4077 .show = ipr_show_adapter_handle 4078}; 4079 4080/** 4081 * ipr_show_resource_path - Show the resource path for this device. 4082 * @dev: device struct 4083 * @buf: buffer 4084 * 4085 * Return value: 4086 * number of bytes printed to buffer 4087 **/ 4088static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4089{ 4090 struct scsi_device *sdev = to_scsi_device(dev); 4091 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4092 struct ipr_resource_entry *res; 4093 unsigned long lock_flags = 0; 4094 ssize_t len = -ENXIO; 4095 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4096 4097 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4098 res = (struct ipr_resource_entry *)sdev->hostdata; 4099 if (res) 4100 len = snprintf(buf, PAGE_SIZE, "%s\n", 4101 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 4102 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4103 return len; 4104} 4105 4106static struct device_attribute ipr_resource_path_attr = { 4107 .attr = { 4108 .name = "resource_path", 4109 .mode = S_IRUSR, 4110 }, 4111 .show = ipr_show_resource_path 4112}; 4113 4114static struct device_attribute *ipr_dev_attrs[] = { 4115 &ipr_adapter_handle_attr, 4116 &ipr_resource_path_attr, 4117 NULL, 4118}; 4119 4120/** 4121 * ipr_biosparam - Return the HSC mapping 4122 * @sdev: scsi device struct 4123 * @block_device: block device pointer 4124 * @capacity: capacity of the device 4125 * @parm: Array containing returned HSC values. 4126 * 4127 * This function generates the HSC parms that fdisk uses. 4128 * We want to make sure we return something that places partitions 4129 * on 4k boundaries for best performance with the IOA. 4130 * 4131 * Return value: 4132 * 0 on success 4133 **/ 4134static int ipr_biosparam(struct scsi_device *sdev, 4135 struct block_device *block_device, 4136 sector_t capacity, int *parm) 4137{ 4138 int heads, sectors; 4139 sector_t cylinders; 4140 4141 heads = 128; 4142 sectors = 32; 4143 4144 cylinders = capacity; 4145 sector_div(cylinders, (128 * 32)); 4146 4147 /* return result */ 4148 parm[0] = heads; 4149 parm[1] = sectors; 4150 parm[2] = cylinders; 4151 4152 return 0; 4153} 4154 4155/** 4156 * ipr_find_starget - Find target based on bus/target. 4157 * @starget: scsi target struct 4158 * 4159 * Return value: 4160 * resource entry pointer if found / NULL if not found 4161 **/ 4162static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4163{ 4164 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4165 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4166 struct ipr_resource_entry *res; 4167 4168 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4169 if ((res->bus == starget->channel) && 4170 (res->target == starget->id) && 4171 (res->lun == 0)) { 4172 return res; 4173 } 4174 } 4175 4176 return NULL; 4177} 4178 4179static struct ata_port_info sata_port_info; 4180 4181/** 4182 * ipr_target_alloc - Prepare for commands to a SCSI target 4183 * @starget: scsi target struct 4184 * 4185 * If the device is a SATA device, this function allocates an 4186 * ATA port with libata, else it does nothing. 4187 * 4188 * Return value: 4189 * 0 on success / non-0 on failure 4190 **/ 4191static int ipr_target_alloc(struct scsi_target *starget) 4192{ 4193 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4194 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4195 struct ipr_sata_port *sata_port; 4196 struct ata_port *ap; 4197 struct ipr_resource_entry *res; 4198 unsigned long lock_flags; 4199 4200 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4201 res = ipr_find_starget(starget); 4202 starget->hostdata = NULL; 4203 4204 if (res && ipr_is_gata(res)) { 4205 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4206 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4207 if (!sata_port) 4208 return -ENOMEM; 4209 4210 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4211 if (ap) { 4212 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4213 sata_port->ioa_cfg = ioa_cfg; 4214 sata_port->ap = ap; 4215 sata_port->res = res; 4216 4217 res->sata_port = sata_port; 4218 ap->private_data = sata_port; 4219 starget->hostdata = sata_port; 4220 } else { 4221 kfree(sata_port); 4222 return -ENOMEM; 4223 } 4224 } 4225 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4226 4227 return 0; 4228} 4229 4230/** 4231 * ipr_target_destroy - Destroy a SCSI target 4232 * @starget: scsi target struct 4233 * 4234 * If the device was a SATA device, this function frees the libata 4235 * ATA port, else it does nothing. 4236 * 4237 **/ 4238static void ipr_target_destroy(struct scsi_target *starget) 4239{ 4240 struct ipr_sata_port *sata_port = starget->hostdata; 4241 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4242 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4243 4244 if (ioa_cfg->sis64) { 4245 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4246 clear_bit(starget->id, ioa_cfg->array_ids); 4247 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4248 clear_bit(starget->id, ioa_cfg->vset_ids); 4249 else if (starget->channel == 0) 4250 clear_bit(starget->id, ioa_cfg->target_ids); 4251 } 4252 4253 if (sata_port) { 4254 starget->hostdata = NULL; 4255 ata_sas_port_destroy(sata_port->ap); 4256 kfree(sata_port); 4257 } 4258} 4259 4260/** 4261 * ipr_find_sdev - Find device based on bus/target/lun. 4262 * @sdev: scsi device struct 4263 * 4264 * Return value: 4265 * resource entry pointer if found / NULL if not found 4266 **/ 4267static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4268{ 4269 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4270 struct ipr_resource_entry *res; 4271 4272 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4273 if ((res->bus == sdev->channel) && 4274 (res->target == sdev->id) && 4275 (res->lun == sdev->lun)) 4276 return res; 4277 } 4278 4279 return NULL; 4280} 4281 4282/** 4283 * ipr_slave_destroy - Unconfigure a SCSI device 4284 * @sdev: scsi device struct 4285 * 4286 * Return value: 4287 * nothing 4288 **/ 4289static void ipr_slave_destroy(struct scsi_device *sdev) 4290{ 4291 struct ipr_resource_entry *res; 4292 struct ipr_ioa_cfg *ioa_cfg; 4293 unsigned long lock_flags = 0; 4294 4295 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4296 4297 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4298 res = (struct ipr_resource_entry *) sdev->hostdata; 4299 if (res) { 4300 if (res->sata_port) 4301 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; 4302 sdev->hostdata = NULL; 4303 res->sdev = NULL; 4304 res->sata_port = NULL; 4305 } 4306 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4307} 4308 4309/** 4310 * ipr_slave_configure - Configure a SCSI device 4311 * @sdev: scsi device struct 4312 * 4313 * This function configures the specified scsi device. 4314 * 4315 * Return value: 4316 * 0 on success 4317 **/ 4318static int ipr_slave_configure(struct scsi_device *sdev) 4319{ 4320 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4321 struct ipr_resource_entry *res; 4322 struct ata_port *ap = NULL; 4323 unsigned long lock_flags = 0; 4324 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4325 4326 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4327 res = sdev->hostdata; 4328 if (res) { 4329 if (ipr_is_af_dasd_device(res)) 4330 sdev->type = TYPE_RAID; 4331 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4332 sdev->scsi_level = 4; 4333 sdev->no_uld_attach = 1; 4334 } 4335 if (ipr_is_vset_device(res)) { 4336 blk_queue_rq_timeout(sdev->request_queue, 4337 IPR_VSET_RW_TIMEOUT); 4338 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4339 } 4340 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 4341 sdev->allow_restart = 1; 4342 if (ipr_is_gata(res) && res->sata_port) 4343 ap = res->sata_port->ap; 4344 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4345 4346 if (ap) { 4347 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 4348 ata_sas_slave_configure(sdev, ap); 4349 } else 4350 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 4351 if (ioa_cfg->sis64) 4352 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4353 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 4354 return 0; 4355 } 4356 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4357 return 0; 4358} 4359 4360/** 4361 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4362 * @sdev: scsi device struct 4363 * 4364 * This function initializes an ATA port so that future commands 4365 * sent through queuecommand will work. 4366 * 4367 * Return value: 4368 * 0 on success 4369 **/ 4370static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4371{ 4372 struct ipr_sata_port *sata_port = NULL; 4373 int rc = -ENXIO; 4374 4375 ENTER; 4376 if (sdev->sdev_target) 4377 sata_port = sdev->sdev_target->hostdata; 4378 if (sata_port) 4379 rc = ata_sas_port_init(sata_port->ap); 4380 if (rc) 4381 ipr_slave_destroy(sdev); 4382 4383 LEAVE; 4384 return rc; 4385} 4386 4387/** 4388 * ipr_slave_alloc - Prepare for commands to a device. 4389 * @sdev: scsi device struct 4390 * 4391 * This function saves a pointer to the resource entry 4392 * in the scsi device struct if the device exists. We 4393 * can then use this pointer in ipr_queuecommand when 4394 * handling new commands. 4395 * 4396 * Return value: 4397 * 0 on success / -ENXIO if device does not exist 4398 **/ 4399static int ipr_slave_alloc(struct scsi_device *sdev) 4400{ 4401 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4402 struct ipr_resource_entry *res; 4403 unsigned long lock_flags; 4404 int rc = -ENXIO; 4405 4406 sdev->hostdata = NULL; 4407 4408 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4409 4410 res = ipr_find_sdev(sdev); 4411 if (res) { 4412 res->sdev = sdev; 4413 res->add_to_ml = 0; 4414 res->in_erp = 0; 4415 sdev->hostdata = res; 4416 if (!ipr_is_naca_model(res)) 4417 res->needs_sync_complete = 1; 4418 rc = 0; 4419 if (ipr_is_gata(res)) { 4420 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4421 return ipr_ata_slave_alloc(sdev); 4422 } 4423 } 4424 4425 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4426 4427 return rc; 4428} 4429 4430/** 4431 * ipr_eh_host_reset - Reset the host adapter 4432 * @scsi_cmd: scsi command struct 4433 * 4434 * Return value: 4435 * SUCCESS / FAILED 4436 **/ 4437static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 4438{ 4439 struct ipr_ioa_cfg *ioa_cfg; 4440 int rc; 4441 4442 ENTER; 4443 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4444 4445 dev_err(&ioa_cfg->pdev->dev, 4446 "Adapter being reset as a result of error recovery.\n"); 4447 4448 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4449 ioa_cfg->sdt_state = GET_DUMP; 4450 4451 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 4452 4453 LEAVE; 4454 return rc; 4455} 4456 4457static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 4458{ 4459 int rc; 4460 4461 spin_lock_irq(cmd->device->host->host_lock); 4462 rc = __ipr_eh_host_reset(cmd); 4463 spin_unlock_irq(cmd->device->host->host_lock); 4464 4465 return rc; 4466} 4467 4468/** 4469 * ipr_device_reset - Reset the device 4470 * @ioa_cfg: ioa config struct 4471 * @res: resource entry struct 4472 * 4473 * This function issues a device reset to the affected device. 4474 * If the device is a SCSI device, a LUN reset will be sent 4475 * to the device first. If that does not work, a target reset 4476 * will be sent. If the device is a SATA device, a PHY reset will 4477 * be sent. 4478 * 4479 * Return value: 4480 * 0 on success / non-zero on failure 4481 **/ 4482static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 4483 struct ipr_resource_entry *res) 4484{ 4485 struct ipr_cmnd *ipr_cmd; 4486 struct ipr_ioarcb *ioarcb; 4487 struct ipr_cmd_pkt *cmd_pkt; 4488 struct ipr_ioarcb_ata_regs *regs; 4489 u32 ioasc; 4490 4491 ENTER; 4492 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4493 ioarcb = &ipr_cmd->ioarcb; 4494 cmd_pkt = &ioarcb->cmd_pkt; 4495 4496 if (ipr_cmd->ioa_cfg->sis64) { 4497 regs = &ipr_cmd->i.ata_ioadl.regs; 4498 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 4499 } else 4500 regs = &ioarcb->u.add_data.u.regs; 4501 4502 ioarcb->res_handle = res->res_handle; 4503 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4504 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4505 if (ipr_is_gata(res)) { 4506 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 4507 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 4508 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 4509 } 4510 4511 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4512 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4513 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4514 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) 4515 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 4516 sizeof(struct ipr_ioasa_gata)); 4517 4518 LEAVE; 4519 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 4520} 4521 4522/** 4523 * ipr_sata_reset - Reset the SATA port 4524 * @link: SATA link to reset 4525 * @classes: class of the attached device 4526 * 4527 * This function issues a SATA phy reset to the affected ATA link. 4528 * 4529 * Return value: 4530 * 0 on success / non-zero on failure 4531 **/ 4532static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 4533 unsigned long deadline) 4534{ 4535 struct ipr_sata_port *sata_port = link->ap->private_data; 4536 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4537 struct ipr_resource_entry *res; 4538 unsigned long lock_flags = 0; 4539 int rc = -ENXIO; 4540 4541 ENTER; 4542 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4543 while(ioa_cfg->in_reset_reload) { 4544 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4545 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4546 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4547 } 4548 4549 res = sata_port->res; 4550 if (res) { 4551 rc = ipr_device_reset(ioa_cfg, res); 4552 *classes = res->ata_class; 4553 } 4554 4555 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4556 LEAVE; 4557 return rc; 4558} 4559 4560/** 4561 * ipr_eh_dev_reset - Reset the device 4562 * @scsi_cmd: scsi command struct 4563 * 4564 * This function issues a device reset to the affected device. 4565 * A LUN reset will be sent to the device first. If that does 4566 * not work, a target reset will be sent. 4567 * 4568 * Return value: 4569 * SUCCESS / FAILED 4570 **/ 4571static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 4572{ 4573 struct ipr_cmnd *ipr_cmd; 4574 struct ipr_ioa_cfg *ioa_cfg; 4575 struct ipr_resource_entry *res; 4576 struct ata_port *ap; 4577 int rc = 0; 4578 4579 ENTER; 4580 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4581 res = scsi_cmd->device->hostdata; 4582 4583 if (!res) 4584 return FAILED; 4585 4586 /* 4587 * If we are currently going through reset/reload, return failed. This will force the 4588 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 4589 * reset to complete 4590 */ 4591 if (ioa_cfg->in_reset_reload) 4592 return FAILED; 4593 if (ioa_cfg->ioa_is_dead) 4594 return FAILED; 4595 4596 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4597 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4598 if (ipr_cmd->scsi_cmd) 4599 ipr_cmd->done = ipr_scsi_eh_done; 4600 if (ipr_cmd->qc) 4601 ipr_cmd->done = ipr_sata_eh_done; 4602 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 4603 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 4604 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 4605 } 4606 } 4607 } 4608 4609 res->resetting_device = 1; 4610 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 4611 4612 if (ipr_is_gata(res) && res->sata_port) { 4613 ap = res->sata_port->ap; 4614 spin_unlock_irq(scsi_cmd->device->host->host_lock); 4615 ata_std_error_handler(ap); 4616 spin_lock_irq(scsi_cmd->device->host->host_lock); 4617 4618 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4619 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4620 rc = -EIO; 4621 break; 4622 } 4623 } 4624 } else 4625 rc = ipr_device_reset(ioa_cfg, res); 4626 res->resetting_device = 0; 4627 4628 LEAVE; 4629 return (rc ? FAILED : SUCCESS); 4630} 4631 4632static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 4633{ 4634 int rc; 4635 4636 spin_lock_irq(cmd->device->host->host_lock); 4637 rc = __ipr_eh_dev_reset(cmd); 4638 spin_unlock_irq(cmd->device->host->host_lock); 4639 4640 return rc; 4641} 4642 4643/** 4644 * ipr_bus_reset_done - Op done function for bus reset. 4645 * @ipr_cmd: ipr command struct 4646 * 4647 * This function is the op done function for a bus reset 4648 * 4649 * Return value: 4650 * none 4651 **/ 4652static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 4653{ 4654 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4655 struct ipr_resource_entry *res; 4656 4657 ENTER; 4658 if (!ioa_cfg->sis64) 4659 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4660 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 4661 scsi_report_bus_reset(ioa_cfg->host, res->bus); 4662 break; 4663 } 4664 } 4665 4666 /* 4667 * If abort has not completed, indicate the reset has, else call the 4668 * abort's done function to wake the sleeping eh thread 4669 */ 4670 if (ipr_cmd->sibling->sibling) 4671 ipr_cmd->sibling->sibling = NULL; 4672 else 4673 ipr_cmd->sibling->done(ipr_cmd->sibling); 4674 4675 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4676 LEAVE; 4677} 4678 4679/** 4680 * ipr_abort_timeout - An abort task has timed out 4681 * @ipr_cmd: ipr command struct 4682 * 4683 * This function handles when an abort task times out. If this 4684 * happens we issue a bus reset since we have resources tied 4685 * up that must be freed before returning to the midlayer. 4686 * 4687 * Return value: 4688 * none 4689 **/ 4690static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4691{ 4692 struct ipr_cmnd *reset_cmd; 4693 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4694 struct ipr_cmd_pkt *cmd_pkt; 4695 unsigned long lock_flags = 0; 4696 4697 ENTER; 4698 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4699 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4700 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4701 return; 4702 } 4703 4704 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4705 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4706 ipr_cmd->sibling = reset_cmd; 4707 reset_cmd->sibling = ipr_cmd; 4708 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4709 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4710 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4711 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4712 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4713 4714 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4715 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4716 LEAVE; 4717} 4718 4719/** 4720 * ipr_cancel_op - Cancel specified op 4721 * @scsi_cmd: scsi command struct 4722 * 4723 * This function cancels specified op. 4724 * 4725 * Return value: 4726 * SUCCESS / FAILED 4727 **/ 4728static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4729{ 4730 struct ipr_cmnd *ipr_cmd; 4731 struct ipr_ioa_cfg *ioa_cfg; 4732 struct ipr_resource_entry *res; 4733 struct ipr_cmd_pkt *cmd_pkt; 4734 u32 ioasc; 4735 int op_found = 0; 4736 4737 ENTER; 4738 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4739 res = scsi_cmd->device->hostdata; 4740 4741 /* If we are currently going through reset/reload, return failed. 4742 * This will force the mid-layer to call ipr_eh_host_reset, 4743 * which will then go to sleep and wait for the reset to complete 4744 */ 4745 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4746 return FAILED; 4747 if (!res || !ipr_is_gscsi(res)) 4748 return FAILED; 4749 4750 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4751 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4752 ipr_cmd->done = ipr_scsi_eh_done; 4753 op_found = 1; 4754 break; 4755 } 4756 } 4757 4758 if (!op_found) 4759 return SUCCESS; 4760 4761 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4762 ipr_cmd->ioarcb.res_handle = res->res_handle; 4763 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4764 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4765 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4766 ipr_cmd->u.sdev = scsi_cmd->device; 4767 4768 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4769 scsi_cmd->cmnd[0]); 4770 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4771 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4772 4773 /* 4774 * If the abort task timed out and we sent a bus reset, we will get 4775 * one the following responses to the abort 4776 */ 4777 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4778 ioasc = 0; 4779 ipr_trace; 4780 } 4781 4782 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4783 if (!ipr_is_naca_model(res)) 4784 res->needs_sync_complete = 1; 4785 4786 LEAVE; 4787 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4788} 4789 4790/** 4791 * ipr_eh_abort - Abort a single op 4792 * @scsi_cmd: scsi command struct 4793 * 4794 * Return value: 4795 * SUCCESS / FAILED 4796 **/ 4797static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4798{ 4799 unsigned long flags; 4800 int rc; 4801 4802 ENTER; 4803 4804 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4805 rc = ipr_cancel_op(scsi_cmd); 4806 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4807 4808 LEAVE; 4809 return rc; 4810} 4811 4812/** 4813 * ipr_handle_other_interrupt - Handle "other" interrupts 4814 * @ioa_cfg: ioa config struct 4815 * @int_reg: interrupt register 4816 * 4817 * Return value: 4818 * IRQ_NONE / IRQ_HANDLED 4819 **/ 4820static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4821 volatile u32 int_reg) 4822{ 4823 irqreturn_t rc = IRQ_HANDLED; 4824 4825 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4826 /* Mask the interrupt */ 4827 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4828 4829 /* Clear the interrupt */ 4830 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4831 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4832 4833 list_del(&ioa_cfg->reset_cmd->queue); 4834 del_timer(&ioa_cfg->reset_cmd->timer); 4835 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4836 } else { 4837 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4838 ioa_cfg->ioa_unit_checked = 1; 4839 else 4840 dev_err(&ioa_cfg->pdev->dev, 4841 "Permanent IOA failure. 0x%08X\n", int_reg); 4842 4843 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4844 ioa_cfg->sdt_state = GET_DUMP; 4845 4846 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4847 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4848 } 4849 4850 return rc; 4851} 4852 4853/** 4854 * ipr_isr_eh - Interrupt service routine error handler 4855 * @ioa_cfg: ioa config struct 4856 * @msg: message to log 4857 * 4858 * Return value: 4859 * none 4860 **/ 4861static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) 4862{ 4863 ioa_cfg->errors_logged++; 4864 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); 4865 4866 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4867 ioa_cfg->sdt_state = GET_DUMP; 4868 4869 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4870} 4871 4872/** 4873 * ipr_isr - Interrupt service routine 4874 * @irq: irq number 4875 * @devp: pointer to ioa config struct 4876 * 4877 * Return value: 4878 * IRQ_NONE / IRQ_HANDLED 4879 **/ 4880static irqreturn_t ipr_isr(int irq, void *devp) 4881{ 4882 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4883 unsigned long lock_flags = 0; 4884 volatile u32 int_reg, int_mask_reg; 4885 u32 ioasc; 4886 u16 cmd_index; 4887 int num_hrrq = 0; 4888 struct ipr_cmnd *ipr_cmd; 4889 irqreturn_t rc = IRQ_NONE; 4890 4891 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4892 4893 /* If interrupts are disabled, ignore the interrupt */ 4894 if (!ioa_cfg->allow_interrupts) { 4895 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4896 return IRQ_NONE; 4897 } 4898 4899 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 4900 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 4901 4902 /* If an interrupt on the adapter did not occur, ignore it. 4903 * Or in the case of SIS 64, check for a stage change interrupt. 4904 */ 4905 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4906 if (ioa_cfg->sis64) { 4907 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4908 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4909 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 4910 4911 /* clear stage change */ 4912 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 4913 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4914 list_del(&ioa_cfg->reset_cmd->queue); 4915 del_timer(&ioa_cfg->reset_cmd->timer); 4916 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4917 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4918 return IRQ_HANDLED; 4919 } 4920 } 4921 4922 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4923 return IRQ_NONE; 4924 } 4925 4926 while (1) { 4927 ipr_cmd = NULL; 4928 4929 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4930 ioa_cfg->toggle_bit) { 4931 4932 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4933 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4934 4935 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4936 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); 4937 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4938 return IRQ_HANDLED; 4939 } 4940 4941 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4942 4943 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 4944 4945 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4946 4947 list_del(&ipr_cmd->queue); 4948 del_timer(&ipr_cmd->timer); 4949 ipr_cmd->done(ipr_cmd); 4950 4951 rc = IRQ_HANDLED; 4952 4953 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4954 ioa_cfg->hrrq_curr++; 4955 } else { 4956 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4957 ioa_cfg->toggle_bit ^= 1u; 4958 } 4959 } 4960 4961 if (ipr_cmd != NULL) { 4962 /* Clear the PCI interrupt */ 4963 do { 4964 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 4965 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 4966 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 4967 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 4968 4969 if (int_reg & IPR_PCII_HRRQ_UPDATED) { 4970 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); 4971 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4972 return IRQ_HANDLED; 4973 } 4974 4975 } else 4976 break; 4977 } 4978 4979 if (unlikely(rc == IRQ_NONE)) 4980 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4981 4982 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4983 return rc; 4984} 4985 4986/** 4987 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 4988 * @ioa_cfg: ioa config struct 4989 * @ipr_cmd: ipr command struct 4990 * 4991 * Return value: 4992 * 0 on success / -1 on failure 4993 **/ 4994static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 4995 struct ipr_cmnd *ipr_cmd) 4996{ 4997 int i, nseg; 4998 struct scatterlist *sg; 4999 u32 length; 5000 u32 ioadl_flags = 0; 5001 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5002 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5003 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5004 5005 length = scsi_bufflen(scsi_cmd); 5006 if (!length) 5007 return 0; 5008 5009 nseg = scsi_dma_map(scsi_cmd); 5010 if (nseg < 0) { 5011 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5012 return -1; 5013 } 5014 5015 ipr_cmd->dma_use_sg = nseg; 5016 5017 ioarcb->data_transfer_length = cpu_to_be32(length); 5018 5019 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5020 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5021 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5022 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5023 ioadl_flags = IPR_IOADL_FLAGS_READ; 5024 5025 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5026 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5027 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5028 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5029 } 5030 5031 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5032 return 0; 5033} 5034 5035/** 5036 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5037 * @ioa_cfg: ioa config struct 5038 * @ipr_cmd: ipr command struct 5039 * 5040 * Return value: 5041 * 0 on success / -1 on failure 5042 **/ 5043static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5044 struct ipr_cmnd *ipr_cmd) 5045{ 5046 int i, nseg; 5047 struct scatterlist *sg; 5048 u32 length; 5049 u32 ioadl_flags = 0; 5050 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5051 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5052 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5053 5054 length = scsi_bufflen(scsi_cmd); 5055 if (!length) 5056 return 0; 5057 5058 nseg = scsi_dma_map(scsi_cmd); 5059 if (nseg < 0) { 5060 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5061 return -1; 5062 } 5063 5064 ipr_cmd->dma_use_sg = nseg; 5065 5066 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5067 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5068 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5069 ioarcb->data_transfer_length = cpu_to_be32(length); 5070 ioarcb->ioadl_len = 5071 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5072 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5073 ioadl_flags = IPR_IOADL_FLAGS_READ; 5074 ioarcb->read_data_transfer_length = cpu_to_be32(length); 5075 ioarcb->read_ioadl_len = 5076 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5077 } 5078 5079 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 5080 ioadl = ioarcb->u.add_data.u.ioadl; 5081 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 5082 offsetof(struct ipr_ioarcb, u.add_data)); 5083 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5084 } 5085 5086 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5087 ioadl[i].flags_and_data_len = 5088 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5089 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 5090 } 5091 5092 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5093 return 0; 5094} 5095 5096/** 5097 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 5098 * @scsi_cmd: scsi command struct 5099 * 5100 * Return value: 5101 * task attributes 5102 **/ 5103static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 5104{ 5105 u8 tag[2]; 5106 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 5107 5108 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 5109 switch (tag[0]) { 5110 case MSG_SIMPLE_TAG: 5111 rc = IPR_FLAGS_LO_SIMPLE_TASK; 5112 break; 5113 case MSG_HEAD_TAG: 5114 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 5115 break; 5116 case MSG_ORDERED_TAG: 5117 rc = IPR_FLAGS_LO_ORDERED_TASK; 5118 break; 5119 }; 5120 } 5121 5122 return rc; 5123} 5124 5125/** 5126 * ipr_erp_done - Process completion of ERP for a device 5127 * @ipr_cmd: ipr command struct 5128 * 5129 * This function copies the sense buffer into the scsi_cmd 5130 * struct and pushes the scsi_done function. 5131 * 5132 * Return value: 5133 * nothing 5134 **/ 5135static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 5136{ 5137 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5138 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5139 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5140 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5141 5142 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5143 scsi_cmd->result |= (DID_ERROR << 16); 5144 scmd_printk(KERN_ERR, scsi_cmd, 5145 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 5146 } else { 5147 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 5148 SCSI_SENSE_BUFFERSIZE); 5149 } 5150 5151 if (res) { 5152 if (!ipr_is_naca_model(res)) 5153 res->needs_sync_complete = 1; 5154 res->in_erp = 0; 5155 } 5156 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5157 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5158 scsi_cmd->scsi_done(scsi_cmd); 5159} 5160 5161/** 5162 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 5163 * @ipr_cmd: ipr command struct 5164 * 5165 * Return value: 5166 * none 5167 **/ 5168static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 5169{ 5170 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5171 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5172 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5173 5174 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 5175 ioarcb->data_transfer_length = 0; 5176 ioarcb->read_data_transfer_length = 0; 5177 ioarcb->ioadl_len = 0; 5178 ioarcb->read_ioadl_len = 0; 5179 ioasa->ioasc = 0; 5180 ioasa->residual_data_len = 0; 5181 5182 if (ipr_cmd->ioa_cfg->sis64) 5183 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5184 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 5185 else { 5186 ioarcb->write_ioadl_addr = 5187 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 5188 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5189 } 5190} 5191 5192/** 5193 * ipr_erp_request_sense - Send request sense to a device 5194 * @ipr_cmd: ipr command struct 5195 * 5196 * This function sends a request sense to a device as a result 5197 * of a check condition. 5198 * 5199 * Return value: 5200 * nothing 5201 **/ 5202static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 5203{ 5204 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5205 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5206 5207 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5208 ipr_erp_done(ipr_cmd); 5209 return; 5210 } 5211 5212 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5213 5214 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 5215 cmd_pkt->cdb[0] = REQUEST_SENSE; 5216 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 5217 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 5218 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5219 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 5220 5221 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 5222 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 5223 5224 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 5225 IPR_REQUEST_SENSE_TIMEOUT * 2); 5226} 5227 5228/** 5229 * ipr_erp_cancel_all - Send cancel all to a device 5230 * @ipr_cmd: ipr command struct 5231 * 5232 * This function sends a cancel all to a device to clear the 5233 * queue. If we are running TCQ on the device, QERR is set to 1, 5234 * which means all outstanding ops have been dropped on the floor. 5235 * Cancel all will return them to us. 5236 * 5237 * Return value: 5238 * nothing 5239 **/ 5240static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 5241{ 5242 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5243 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5244 struct ipr_cmd_pkt *cmd_pkt; 5245 5246 res->in_erp = 1; 5247 5248 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5249 5250 if (!scsi_get_tag_type(scsi_cmd->device)) { 5251 ipr_erp_request_sense(ipr_cmd); 5252 return; 5253 } 5254 5255 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5256 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5257 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5258 5259 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 5260 IPR_CANCEL_ALL_TIMEOUT); 5261} 5262 5263/** 5264 * ipr_dump_ioasa - Dump contents of IOASA 5265 * @ioa_cfg: ioa config struct 5266 * @ipr_cmd: ipr command struct 5267 * @res: resource entry struct 5268 * 5269 * This function is invoked by the interrupt handler when ops 5270 * fail. It will log the IOASA if appropriate. Only called 5271 * for GPDD ops. 5272 * 5273 * Return value: 5274 * none 5275 **/ 5276static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 5277 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 5278{ 5279 int i; 5280 u16 data_len; 5281 u32 ioasc, fd_ioasc; 5282 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5283 __be32 *ioasa_data = (__be32 *)ioasa; 5284 int error_index; 5285 5286 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK; 5287 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK; 5288 5289 if (0 == ioasc) 5290 return; 5291 5292 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 5293 return; 5294 5295 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 5296 error_index = ipr_get_error(fd_ioasc); 5297 else 5298 error_index = ipr_get_error(ioasc); 5299 5300 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 5301 /* Don't log an error if the IOA already logged one */ 5302 if (ioasa->ilid != 0) 5303 return; 5304 5305 if (!ipr_is_gscsi(res)) 5306 return; 5307 5308 if (ipr_error_table[error_index].log_ioasa == 0) 5309 return; 5310 } 5311 5312 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 5313 5314 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len)) 5315 data_len = sizeof(struct ipr_ioasa); 5316 else 5317 data_len = be16_to_cpu(ioasa->ret_stat_len); 5318 5319 ipr_err("IOASA Dump:\n"); 5320 5321 for (i = 0; i < data_len / 4; i += 4) { 5322 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 5323 be32_to_cpu(ioasa_data[i]), 5324 be32_to_cpu(ioasa_data[i+1]), 5325 be32_to_cpu(ioasa_data[i+2]), 5326 be32_to_cpu(ioasa_data[i+3])); 5327 } 5328} 5329 5330/** 5331 * ipr_gen_sense - Generate SCSI sense data from an IOASA 5332 * @ioasa: IOASA 5333 * @sense_buf: sense data buffer 5334 * 5335 * Return value: 5336 * none 5337 **/ 5338static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 5339{ 5340 u32 failing_lba; 5341 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 5342 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 5343 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5344 u32 ioasc = be32_to_cpu(ioasa->ioasc); 5345 5346 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 5347 5348 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 5349 return; 5350 5351 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 5352 5353 if (ipr_is_vset_device(res) && 5354 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 5355 ioasa->u.vset.failing_lba_hi != 0) { 5356 sense_buf[0] = 0x72; 5357 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 5358 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 5359 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 5360 5361 sense_buf[7] = 12; 5362 sense_buf[8] = 0; 5363 sense_buf[9] = 0x0A; 5364 sense_buf[10] = 0x80; 5365 5366 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 5367 5368 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 5369 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 5370 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 5371 sense_buf[15] = failing_lba & 0x000000ff; 5372 5373 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5374 5375 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 5376 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 5377 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 5378 sense_buf[19] = failing_lba & 0x000000ff; 5379 } else { 5380 sense_buf[0] = 0x70; 5381 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 5382 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 5383 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 5384 5385 /* Illegal request */ 5386 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 5387 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 5388 sense_buf[7] = 10; /* additional length */ 5389 5390 /* IOARCB was in error */ 5391 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 5392 sense_buf[15] = 0xC0; 5393 else /* Parameter data was invalid */ 5394 sense_buf[15] = 0x80; 5395 5396 sense_buf[16] = 5397 ((IPR_FIELD_POINTER_MASK & 5398 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff; 5399 sense_buf[17] = 5400 (IPR_FIELD_POINTER_MASK & 5401 be32_to_cpu(ioasa->ioasc_specific)) & 0xff; 5402 } else { 5403 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 5404 if (ipr_is_vset_device(res)) 5405 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5406 else 5407 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 5408 5409 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 5410 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 5411 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 5412 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 5413 sense_buf[6] = failing_lba & 0x000000ff; 5414 } 5415 5416 sense_buf[7] = 6; /* additional length */ 5417 } 5418 } 5419} 5420 5421/** 5422 * ipr_get_autosense - Copy autosense data to sense buffer 5423 * @ipr_cmd: ipr command struct 5424 * 5425 * This function copies the autosense buffer to the buffer 5426 * in the scsi_cmd, if there is autosense available. 5427 * 5428 * Return value: 5429 * 1 if autosense was available / 0 if not 5430 **/ 5431static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 5432{ 5433 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa; 5434 5435 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 5436 return 0; 5437 5438 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 5439 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 5440 SCSI_SENSE_BUFFERSIZE)); 5441 return 1; 5442} 5443 5444/** 5445 * ipr_erp_start - Process an error response for a SCSI op 5446 * @ioa_cfg: ioa config struct 5447 * @ipr_cmd: ipr command struct 5448 * 5449 * This function determines whether or not to initiate ERP 5450 * on the affected device. 5451 * 5452 * Return value: 5453 * nothing 5454 **/ 5455static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 5456 struct ipr_cmnd *ipr_cmd) 5457{ 5458 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5459 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5460 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5461 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 5462 5463 if (!res) { 5464 ipr_scsi_eh_done(ipr_cmd); 5465 return; 5466 } 5467 5468 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 5469 ipr_gen_sense(ipr_cmd); 5470 5471 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5472 5473 switch (masked_ioasc) { 5474 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 5475 if (ipr_is_naca_model(res)) 5476 scsi_cmd->result |= (DID_ABORT << 16); 5477 else 5478 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5479 break; 5480 case IPR_IOASC_IR_RESOURCE_HANDLE: 5481 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 5482 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5483 break; 5484 case IPR_IOASC_HW_SEL_TIMEOUT: 5485 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5486 if (!ipr_is_naca_model(res)) 5487 res->needs_sync_complete = 1; 5488 break; 5489 case IPR_IOASC_SYNC_REQUIRED: 5490 if (!res->in_erp) 5491 res->needs_sync_complete = 1; 5492 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5493 break; 5494 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 5495 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 5496 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 5497 break; 5498 case IPR_IOASC_BUS_WAS_RESET: 5499 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 5500 /* 5501 * Report the bus reset and ask for a retry. The device 5502 * will give CC/UA the next command. 5503 */ 5504 if (!res->resetting_device) 5505 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 5506 scsi_cmd->result |= (DID_ERROR << 16); 5507 if (!ipr_is_naca_model(res)) 5508 res->needs_sync_complete = 1; 5509 break; 5510 case IPR_IOASC_HW_DEV_BUS_STATUS: 5511 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 5512 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 5513 if (!ipr_get_autosense(ipr_cmd)) { 5514 if (!ipr_is_naca_model(res)) { 5515 ipr_erp_cancel_all(ipr_cmd); 5516 return; 5517 } 5518 } 5519 } 5520 if (!ipr_is_naca_model(res)) 5521 res->needs_sync_complete = 1; 5522 break; 5523 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 5524 break; 5525 default: 5526 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5527 scsi_cmd->result |= (DID_ERROR << 16); 5528 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 5529 res->needs_sync_complete = 1; 5530 break; 5531 } 5532 5533 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5534 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5535 scsi_cmd->scsi_done(scsi_cmd); 5536} 5537 5538/** 5539 * ipr_scsi_done - mid-layer done function 5540 * @ipr_cmd: ipr command struct 5541 * 5542 * This function is invoked by the interrupt handler for 5543 * ops generated by the SCSI mid-layer 5544 * 5545 * Return value: 5546 * none 5547 **/ 5548static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 5549{ 5550 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5551 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5552 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5553 5554 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len)); 5555 5556 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 5557 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5558 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5559 scsi_cmd->scsi_done(scsi_cmd); 5560 } else 5561 ipr_erp_start(ioa_cfg, ipr_cmd); 5562} 5563 5564/** 5565 * ipr_queuecommand - Queue a mid-layer request 5566 * @scsi_cmd: scsi command struct 5567 * @done: done function 5568 * 5569 * This function queues a request generated by the mid-layer. 5570 * 5571 * Return value: 5572 * 0 on success 5573 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 5574 * SCSI_MLQUEUE_HOST_BUSY if host is busy 5575 **/ 5576static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 5577 void (*done) (struct scsi_cmnd *)) 5578{ 5579 struct ipr_ioa_cfg *ioa_cfg; 5580 struct ipr_resource_entry *res; 5581 struct ipr_ioarcb *ioarcb; 5582 struct ipr_cmnd *ipr_cmd; 5583 int rc = 0; 5584 5585 scsi_cmd->scsi_done = done; 5586 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5587 res = scsi_cmd->device->hostdata; 5588 scsi_cmd->result = (DID_OK << 16); 5589 5590 /* 5591 * We are currently blocking all devices due to a host reset 5592 * We have told the host to stop giving us new requests, but 5593 * ERP ops don't count. FIXME 5594 */ 5595 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 5596 return SCSI_MLQUEUE_HOST_BUSY; 5597 5598 /* 5599 * FIXME - Create scsi_set_host_offline interface 5600 * and the ioa_is_dead check can be removed 5601 */ 5602 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 5603 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 5604 scsi_cmd->result = (DID_NO_CONNECT << 16); 5605 scsi_cmd->scsi_done(scsi_cmd); 5606 return 0; 5607 } 5608 5609 if (ipr_is_gata(res) && res->sata_port) 5610 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 5611 5612 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5613 ioarcb = &ipr_cmd->ioarcb; 5614 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5615 5616 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 5617 ipr_cmd->scsi_cmd = scsi_cmd; 5618 ioarcb->res_handle = res->res_handle; 5619 ipr_cmd->done = ipr_scsi_done; 5620 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5621 5622 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 5623 if (scsi_cmd->underflow == 0) 5624 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5625 5626 if (res->needs_sync_complete) { 5627 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 5628 res->needs_sync_complete = 0; 5629 } 5630 5631 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5632 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 5633 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 5634 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 5635 } 5636 5637 if (scsi_cmd->cmnd[0] >= 0xC0 && 5638 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 5639 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5640 5641 if (likely(rc == 0)) { 5642 if (ioa_cfg->sis64) 5643 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 5644 else 5645 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 5646 } 5647 5648 if (likely(rc == 0)) { 5649 mb(); 5650 ipr_send_command(ipr_cmd); 5651 } else { 5652 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5653 return SCSI_MLQUEUE_HOST_BUSY; 5654 } 5655 5656 return 0; 5657} 5658 5659/** 5660 * ipr_ioctl - IOCTL handler 5661 * @sdev: scsi device struct 5662 * @cmd: IOCTL cmd 5663 * @arg: IOCTL arg 5664 * 5665 * Return value: 5666 * 0 on success / other on failure 5667 **/ 5668static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 5669{ 5670 struct ipr_resource_entry *res; 5671 5672 res = (struct ipr_resource_entry *)sdev->hostdata; 5673 if (res && ipr_is_gata(res)) { 5674 if (cmd == HDIO_GET_IDENTITY) 5675 return -ENOTTY; 5676 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 5677 } 5678 5679 return -EINVAL; 5680} 5681 5682/** 5683 * ipr_info - Get information about the card/driver 5684 * @scsi_host: scsi host struct 5685 * 5686 * Return value: 5687 * pointer to buffer with description string 5688 **/ 5689static const char * ipr_ioa_info(struct Scsi_Host *host) 5690{ 5691 static char buffer[512]; 5692 struct ipr_ioa_cfg *ioa_cfg; 5693 unsigned long lock_flags = 0; 5694 5695 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 5696 5697 spin_lock_irqsave(host->host_lock, lock_flags); 5698 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 5699 spin_unlock_irqrestore(host->host_lock, lock_flags); 5700 5701 return buffer; 5702} 5703 5704static struct scsi_host_template driver_template = { 5705 .module = THIS_MODULE, 5706 .name = "IPR", 5707 .info = ipr_ioa_info, 5708 .ioctl = ipr_ioctl, 5709 .queuecommand = ipr_queuecommand, 5710 .eh_abort_handler = ipr_eh_abort, 5711 .eh_device_reset_handler = ipr_eh_dev_reset, 5712 .eh_host_reset_handler = ipr_eh_host_reset, 5713 .slave_alloc = ipr_slave_alloc, 5714 .slave_configure = ipr_slave_configure, 5715 .slave_destroy = ipr_slave_destroy, 5716 .target_alloc = ipr_target_alloc, 5717 .target_destroy = ipr_target_destroy, 5718 .change_queue_depth = ipr_change_queue_depth, 5719 .change_queue_type = ipr_change_queue_type, 5720 .bios_param = ipr_biosparam, 5721 .can_queue = IPR_MAX_COMMANDS, 5722 .this_id = -1, 5723 .sg_tablesize = IPR_MAX_SGLIST, 5724 .max_sectors = IPR_IOA_MAX_SECTORS, 5725 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5726 .use_clustering = ENABLE_CLUSTERING, 5727 .shost_attrs = ipr_ioa_attrs, 5728 .sdev_attrs = ipr_dev_attrs, 5729 .proc_name = IPR_NAME 5730}; 5731 5732/** 5733 * ipr_ata_phy_reset - libata phy_reset handler 5734 * @ap: ata port to reset 5735 * 5736 **/ 5737static void ipr_ata_phy_reset(struct ata_port *ap) 5738{ 5739 unsigned long flags; 5740 struct ipr_sata_port *sata_port = ap->private_data; 5741 struct ipr_resource_entry *res = sata_port->res; 5742 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5743 int rc; 5744 5745 ENTER; 5746 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5747 while(ioa_cfg->in_reset_reload) { 5748 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5749 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5750 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5751 } 5752 5753 if (!ioa_cfg->allow_cmds) 5754 goto out_unlock; 5755 5756 rc = ipr_device_reset(ioa_cfg, res); 5757 5758 if (rc) { 5759 ap->link.device[0].class = ATA_DEV_NONE; 5760 goto out_unlock; 5761 } 5762 5763 ap->link.device[0].class = res->ata_class; 5764 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 5765 ap->link.device[0].class = ATA_DEV_NONE; 5766 5767out_unlock: 5768 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5769 LEAVE; 5770} 5771 5772/** 5773 * ipr_ata_post_internal - Cleanup after an internal command 5774 * @qc: ATA queued command 5775 * 5776 * Return value: 5777 * none 5778 **/ 5779static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5780{ 5781 struct ipr_sata_port *sata_port = qc->ap->private_data; 5782 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5783 struct ipr_cmnd *ipr_cmd; 5784 unsigned long flags; 5785 5786 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5787 while(ioa_cfg->in_reset_reload) { 5788 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5789 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5790 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5791 } 5792 5793 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5794 if (ipr_cmd->qc == qc) { 5795 ipr_device_reset(ioa_cfg, sata_port->res); 5796 break; 5797 } 5798 } 5799 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5800} 5801 5802/** 5803 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5804 * @regs: destination 5805 * @tf: source ATA taskfile 5806 * 5807 * Return value: 5808 * none 5809 **/ 5810static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5811 struct ata_taskfile *tf) 5812{ 5813 regs->feature = tf->feature; 5814 regs->nsect = tf->nsect; 5815 regs->lbal = tf->lbal; 5816 regs->lbam = tf->lbam; 5817 regs->lbah = tf->lbah; 5818 regs->device = tf->device; 5819 regs->command = tf->command; 5820 regs->hob_feature = tf->hob_feature; 5821 regs->hob_nsect = tf->hob_nsect; 5822 regs->hob_lbal = tf->hob_lbal; 5823 regs->hob_lbam = tf->hob_lbam; 5824 regs->hob_lbah = tf->hob_lbah; 5825 regs->ctl = tf->ctl; 5826} 5827 5828/** 5829 * ipr_sata_done - done function for SATA commands 5830 * @ipr_cmd: ipr command struct 5831 * 5832 * This function is invoked by the interrupt handler for 5833 * ops generated by the SCSI mid-layer to SATA devices 5834 * 5835 * Return value: 5836 * none 5837 **/ 5838static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5839{ 5840 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5841 struct ata_queued_cmd *qc = ipr_cmd->qc; 5842 struct ipr_sata_port *sata_port = qc->ap->private_data; 5843 struct ipr_resource_entry *res = sata_port->res; 5844 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 5845 5846 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata, 5847 sizeof(struct ipr_ioasa_gata)); 5848 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5849 5850 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5851 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 5852 5853 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5854 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5855 else 5856 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status); 5857 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5858 ata_qc_complete(qc); 5859} 5860 5861/** 5862 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 5863 * @ipr_cmd: ipr command struct 5864 * @qc: ATA queued command 5865 * 5866 **/ 5867static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 5868 struct ata_queued_cmd *qc) 5869{ 5870 u32 ioadl_flags = 0; 5871 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5872 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5873 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 5874 int len = qc->nbytes; 5875 struct scatterlist *sg; 5876 unsigned int si; 5877 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5878 5879 if (len == 0) 5880 return; 5881 5882 if (qc->dma_dir == DMA_TO_DEVICE) { 5883 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5884 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5885 } else if (qc->dma_dir == DMA_FROM_DEVICE) 5886 ioadl_flags = IPR_IOADL_FLAGS_READ; 5887 5888 ioarcb->data_transfer_length = cpu_to_be32(len); 5889 ioarcb->ioadl_len = 5890 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5891 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5892 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); 5893 5894 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5895 ioadl64->flags = cpu_to_be32(ioadl_flags); 5896 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 5897 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 5898 5899 last_ioadl64 = ioadl64; 5900 ioadl64++; 5901 } 5902 5903 if (likely(last_ioadl64)) 5904 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5905} 5906 5907/** 5908 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5909 * @ipr_cmd: ipr command struct 5910 * @qc: ATA queued command 5911 * 5912 **/ 5913static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5914 struct ata_queued_cmd *qc) 5915{ 5916 u32 ioadl_flags = 0; 5917 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5918 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5919 struct ipr_ioadl_desc *last_ioadl = NULL; 5920 int len = qc->nbytes; 5921 struct scatterlist *sg; 5922 unsigned int si; 5923 5924 if (len == 0) 5925 return; 5926 5927 if (qc->dma_dir == DMA_TO_DEVICE) { 5928 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5929 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5930 ioarcb->data_transfer_length = cpu_to_be32(len); 5931 ioarcb->ioadl_len = 5932 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5933 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5934 ioadl_flags = IPR_IOADL_FLAGS_READ; 5935 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5936 ioarcb->read_ioadl_len = 5937 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5938 } 5939 5940 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5941 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5942 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5943 5944 last_ioadl = ioadl; 5945 ioadl++; 5946 } 5947 5948 if (likely(last_ioadl)) 5949 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5950} 5951 5952/** 5953 * ipr_qc_issue - Issue a SATA qc to a device 5954 * @qc: queued command 5955 * 5956 * Return value: 5957 * 0 if success 5958 **/ 5959static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5960{ 5961 struct ata_port *ap = qc->ap; 5962 struct ipr_sata_port *sata_port = ap->private_data; 5963 struct ipr_resource_entry *res = sata_port->res; 5964 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5965 struct ipr_cmnd *ipr_cmd; 5966 struct ipr_ioarcb *ioarcb; 5967 struct ipr_ioarcb_ata_regs *regs; 5968 5969 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5970 return AC_ERR_SYSTEM; 5971 5972 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5973 ioarcb = &ipr_cmd->ioarcb; 5974 5975 if (ioa_cfg->sis64) { 5976 regs = &ipr_cmd->i.ata_ioadl.regs; 5977 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 5978 } else 5979 regs = &ioarcb->u.add_data.u.regs; 5980 5981 memset(regs, 0, sizeof(*regs)); 5982 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 5983 5984 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5985 ipr_cmd->qc = qc; 5986 ipr_cmd->done = ipr_sata_done; 5987 ipr_cmd->ioarcb.res_handle = res->res_handle; 5988 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 5989 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5990 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5991 ipr_cmd->dma_use_sg = qc->n_elem; 5992 5993 if (ioa_cfg->sis64) 5994 ipr_build_ata_ioadl64(ipr_cmd, qc); 5995 else 5996 ipr_build_ata_ioadl(ipr_cmd, qc); 5997 5998 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5999 ipr_copy_sata_tf(regs, &qc->tf); 6000 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 6001 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 6002 6003 switch (qc->tf.protocol) { 6004 case ATA_PROT_NODATA: 6005 case ATA_PROT_PIO: 6006 break; 6007 6008 case ATA_PROT_DMA: 6009 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6010 break; 6011 6012 case ATAPI_PROT_PIO: 6013 case ATAPI_PROT_NODATA: 6014 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6015 break; 6016 6017 case ATAPI_PROT_DMA: 6018 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6019 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6020 break; 6021 6022 default: 6023 WARN_ON(1); 6024 return AC_ERR_INVALID; 6025 } 6026 6027 mb(); 6028 6029 ipr_send_command(ipr_cmd); 6030 6031 return 0; 6032} 6033 6034/** 6035 * ipr_qc_fill_rtf - Read result TF 6036 * @qc: ATA queued command 6037 * 6038 * Return value: 6039 * true 6040 **/ 6041static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 6042{ 6043 struct ipr_sata_port *sata_port = qc->ap->private_data; 6044 struct ipr_ioasa_gata *g = &sata_port->ioasa; 6045 struct ata_taskfile *tf = &qc->result_tf; 6046 6047 tf->feature = g->error; 6048 tf->nsect = g->nsect; 6049 tf->lbal = g->lbal; 6050 tf->lbam = g->lbam; 6051 tf->lbah = g->lbah; 6052 tf->device = g->device; 6053 tf->command = g->status; 6054 tf->hob_nsect = g->hob_nsect; 6055 tf->hob_lbal = g->hob_lbal; 6056 tf->hob_lbam = g->hob_lbam; 6057 tf->hob_lbah = g->hob_lbah; 6058 tf->ctl = g->alt_status; 6059 6060 return true; 6061} 6062 6063static struct ata_port_operations ipr_sata_ops = { 6064 .phy_reset = ipr_ata_phy_reset, 6065 .hardreset = ipr_sata_reset, 6066 .post_internal_cmd = ipr_ata_post_internal, 6067 .qc_prep = ata_noop_qc_prep, 6068 .qc_issue = ipr_qc_issue, 6069 .qc_fill_rtf = ipr_qc_fill_rtf, 6070 .port_start = ata_sas_port_start, 6071 .port_stop = ata_sas_port_stop 6072}; 6073 6074static struct ata_port_info sata_port_info = { 6075 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 6076 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 6077 .pio_mask = 0x10, /* pio4 */ 6078 .mwdma_mask = 0x07, 6079 .udma_mask = 0x7f, /* udma0-6 */ 6080 .port_ops = &ipr_sata_ops 6081}; 6082 6083#ifdef CONFIG_PPC_PSERIES 6084static const u16 ipr_blocked_processors[] = { 6085 PV_NORTHSTAR, 6086 PV_PULSAR, 6087 PV_POWER4, 6088 PV_ICESTAR, 6089 PV_SSTAR, 6090 PV_POWER4p, 6091 PV_630, 6092 PV_630p 6093}; 6094 6095/** 6096 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 6097 * @ioa_cfg: ioa cfg struct 6098 * 6099 * Adapters that use Gemstone revision < 3.1 do not work reliably on 6100 * certain pSeries hardware. This function determines if the given 6101 * adapter is in one of these confgurations or not. 6102 * 6103 * Return value: 6104 * 1 if adapter is not supported / 0 if adapter is supported 6105 **/ 6106static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 6107{ 6108 int i; 6109 6110 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 6111 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 6112 if (__is_processor(ipr_blocked_processors[i])) 6113 return 1; 6114 } 6115 } 6116 return 0; 6117} 6118#else 6119#define ipr_invalid_adapter(ioa_cfg) 0 6120#endif 6121 6122/** 6123 * ipr_ioa_bringdown_done - IOA bring down completion. 6124 * @ipr_cmd: ipr command struct 6125 * 6126 * This function processes the completion of an adapter bring down. 6127 * It wakes any reset sleepers. 6128 * 6129 * Return value: 6130 * IPR_RC_JOB_RETURN 6131 **/ 6132static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 6133{ 6134 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6135 6136 ENTER; 6137 ioa_cfg->in_reset_reload = 0; 6138 ioa_cfg->reset_retries = 0; 6139 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6140 wake_up_all(&ioa_cfg->reset_wait_q); 6141 6142 spin_unlock_irq(ioa_cfg->host->host_lock); 6143 scsi_unblock_requests(ioa_cfg->host); 6144 spin_lock_irq(ioa_cfg->host->host_lock); 6145 LEAVE; 6146 6147 return IPR_RC_JOB_RETURN; 6148} 6149 6150/** 6151 * ipr_ioa_reset_done - IOA reset completion. 6152 * @ipr_cmd: ipr command struct 6153 * 6154 * This function processes the completion of an adapter reset. 6155 * It schedules any necessary mid-layer add/removes and 6156 * wakes any reset sleepers. 6157 * 6158 * Return value: 6159 * IPR_RC_JOB_RETURN 6160 **/ 6161static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 6162{ 6163 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6164 struct ipr_resource_entry *res; 6165 struct ipr_hostrcb *hostrcb, *temp; 6166 int i = 0; 6167 6168 ENTER; 6169 ioa_cfg->in_reset_reload = 0; 6170 ioa_cfg->allow_cmds = 1; 6171 ioa_cfg->reset_cmd = NULL; 6172 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 6173 6174 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 6175 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 6176 ipr_trace; 6177 break; 6178 } 6179 } 6180 schedule_work(&ioa_cfg->work_q); 6181 6182 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 6183 list_del(&hostrcb->queue); 6184 if (i++ < IPR_NUM_LOG_HCAMS) 6185 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 6186 else 6187 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 6188 } 6189 6190 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 6191 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 6192 6193 ioa_cfg->reset_retries = 0; 6194 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6195 wake_up_all(&ioa_cfg->reset_wait_q); 6196 6197 spin_unlock(ioa_cfg->host->host_lock); 6198 scsi_unblock_requests(ioa_cfg->host); 6199 spin_lock(ioa_cfg->host->host_lock); 6200 6201 if (!ioa_cfg->allow_cmds) 6202 scsi_block_requests(ioa_cfg->host); 6203 6204 LEAVE; 6205 return IPR_RC_JOB_RETURN; 6206} 6207 6208/** 6209 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 6210 * @supported_dev: supported device struct 6211 * @vpids: vendor product id struct 6212 * 6213 * Return value: 6214 * none 6215 **/ 6216static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 6217 struct ipr_std_inq_vpids *vpids) 6218{ 6219 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 6220 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 6221 supported_dev->num_records = 1; 6222 supported_dev->data_length = 6223 cpu_to_be16(sizeof(struct ipr_supported_device)); 6224 supported_dev->reserved = 0; 6225} 6226 6227/** 6228 * ipr_set_supported_devs - Send Set Supported Devices for a device 6229 * @ipr_cmd: ipr command struct 6230 * 6231 * This function sends a Set Supported Devices to the adapter 6232 * 6233 * Return value: 6234 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6235 **/ 6236static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 6237{ 6238 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6239 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 6240 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6241 struct ipr_resource_entry *res = ipr_cmd->u.res; 6242 6243 ipr_cmd->job_step = ipr_ioa_reset_done; 6244 6245 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 6246 if (!ipr_is_scsi_disk(res)) 6247 continue; 6248 6249 ipr_cmd->u.res = res; 6250 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 6251 6252 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6253 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6254 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6255 6256 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 6257 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 6258 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 6259 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 6260 6261 ipr_init_ioadl(ipr_cmd, 6262 ioa_cfg->vpd_cbs_dma + 6263 offsetof(struct ipr_misc_cbs, supp_dev), 6264 sizeof(struct ipr_supported_device), 6265 IPR_IOADL_FLAGS_WRITE_LAST); 6266 6267 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6268 IPR_SET_SUP_DEVICE_TIMEOUT); 6269 6270 if (!ioa_cfg->sis64) 6271 ipr_cmd->job_step = ipr_set_supported_devs; 6272 return IPR_RC_JOB_RETURN; 6273 } 6274 6275 return IPR_RC_JOB_CONTINUE; 6276} 6277 6278/** 6279 * ipr_get_mode_page - Locate specified mode page 6280 * @mode_pages: mode page buffer 6281 * @page_code: page code to find 6282 * @len: minimum required length for mode page 6283 * 6284 * Return value: 6285 * pointer to mode page / NULL on failure 6286 **/ 6287static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 6288 u32 page_code, u32 len) 6289{ 6290 struct ipr_mode_page_hdr *mode_hdr; 6291 u32 page_length; 6292 u32 length; 6293 6294 if (!mode_pages || (mode_pages->hdr.length == 0)) 6295 return NULL; 6296 6297 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 6298 mode_hdr = (struct ipr_mode_page_hdr *) 6299 (mode_pages->data + mode_pages->hdr.block_desc_len); 6300 6301 while (length) { 6302 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 6303 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 6304 return mode_hdr; 6305 break; 6306 } else { 6307 page_length = (sizeof(struct ipr_mode_page_hdr) + 6308 mode_hdr->page_length); 6309 length -= page_length; 6310 mode_hdr = (struct ipr_mode_page_hdr *) 6311 ((unsigned long)mode_hdr + page_length); 6312 } 6313 } 6314 return NULL; 6315} 6316 6317/** 6318 * ipr_check_term_power - Check for term power errors 6319 * @ioa_cfg: ioa config struct 6320 * @mode_pages: IOAFP mode pages buffer 6321 * 6322 * Check the IOAFP's mode page 28 for term power errors 6323 * 6324 * Return value: 6325 * nothing 6326 **/ 6327static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 6328 struct ipr_mode_pages *mode_pages) 6329{ 6330 int i; 6331 int entry_length; 6332 struct ipr_dev_bus_entry *bus; 6333 struct ipr_mode_page28 *mode_page; 6334 6335 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6336 sizeof(struct ipr_mode_page28)); 6337 6338 entry_length = mode_page->entry_length; 6339 6340 bus = mode_page->bus; 6341 6342 for (i = 0; i < mode_page->num_entries; i++) { 6343 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 6344 dev_err(&ioa_cfg->pdev->dev, 6345 "Term power is absent on scsi bus %d\n", 6346 bus->res_addr.bus); 6347 } 6348 6349 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 6350 } 6351} 6352 6353/** 6354 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 6355 * @ioa_cfg: ioa config struct 6356 * 6357 * Looks through the config table checking for SES devices. If 6358 * the SES device is in the SES table indicating a maximum SCSI 6359 * bus speed, the speed is limited for the bus. 6360 * 6361 * Return value: 6362 * none 6363 **/ 6364static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 6365{ 6366 u32 max_xfer_rate; 6367 int i; 6368 6369 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 6370 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 6371 ioa_cfg->bus_attr[i].bus_width); 6372 6373 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 6374 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 6375 } 6376} 6377 6378/** 6379 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 6380 * @ioa_cfg: ioa config struct 6381 * @mode_pages: mode page 28 buffer 6382 * 6383 * Updates mode page 28 based on driver configuration 6384 * 6385 * Return value: 6386 * none 6387 **/ 6388static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 6389 struct ipr_mode_pages *mode_pages) 6390{ 6391 int i, entry_length; 6392 struct ipr_dev_bus_entry *bus; 6393 struct ipr_bus_attributes *bus_attr; 6394 struct ipr_mode_page28 *mode_page; 6395 6396 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6397 sizeof(struct ipr_mode_page28)); 6398 6399 entry_length = mode_page->entry_length; 6400 6401 /* Loop for each device bus entry */ 6402 for (i = 0, bus = mode_page->bus; 6403 i < mode_page->num_entries; 6404 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 6405 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 6406 dev_err(&ioa_cfg->pdev->dev, 6407 "Invalid resource address reported: 0x%08X\n", 6408 IPR_GET_PHYS_LOC(bus->res_addr)); 6409 continue; 6410 } 6411 6412 bus_attr = &ioa_cfg->bus_attr[i]; 6413 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 6414 bus->bus_width = bus_attr->bus_width; 6415 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 6416 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 6417 if (bus_attr->qas_enabled) 6418 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 6419 else 6420 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 6421 } 6422} 6423 6424/** 6425 * ipr_build_mode_select - Build a mode select command 6426 * @ipr_cmd: ipr command struct 6427 * @res_handle: resource handle to send command to 6428 * @parm: Byte 2 of Mode Sense command 6429 * @dma_addr: DMA buffer address 6430 * @xfer_len: data transfer length 6431 * 6432 * Return value: 6433 * none 6434 **/ 6435static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 6436 __be32 res_handle, u8 parm, 6437 dma_addr_t dma_addr, u8 xfer_len) 6438{ 6439 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6440 6441 ioarcb->res_handle = res_handle; 6442 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6443 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6444 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 6445 ioarcb->cmd_pkt.cdb[1] = parm; 6446 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6447 6448 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 6449} 6450 6451/** 6452 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 6453 * @ipr_cmd: ipr command struct 6454 * 6455 * This function sets up the SCSI bus attributes and sends 6456 * a Mode Select for Page 28 to activate them. 6457 * 6458 * Return value: 6459 * IPR_RC_JOB_RETURN 6460 **/ 6461static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 6462{ 6463 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6464 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6465 int length; 6466 6467 ENTER; 6468 ipr_scsi_bus_speed_limit(ioa_cfg); 6469 ipr_check_term_power(ioa_cfg, mode_pages); 6470 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 6471 length = mode_pages->hdr.length + 1; 6472 mode_pages->hdr.length = 0; 6473 6474 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6475 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6476 length); 6477 6478 ipr_cmd->job_step = ipr_set_supported_devs; 6479 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6480 struct ipr_resource_entry, queue); 6481 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6482 6483 LEAVE; 6484 return IPR_RC_JOB_RETURN; 6485} 6486 6487/** 6488 * ipr_build_mode_sense - Builds a mode sense command 6489 * @ipr_cmd: ipr command struct 6490 * @res: resource entry struct 6491 * @parm: Byte 2 of mode sense command 6492 * @dma_addr: DMA address of mode sense buffer 6493 * @xfer_len: Size of DMA buffer 6494 * 6495 * Return value: 6496 * none 6497 **/ 6498static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 6499 __be32 res_handle, 6500 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 6501{ 6502 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6503 6504 ioarcb->res_handle = res_handle; 6505 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 6506 ioarcb->cmd_pkt.cdb[2] = parm; 6507 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6508 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6509 6510 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6511} 6512 6513/** 6514 * ipr_reset_cmd_failed - Handle failure of IOA reset command 6515 * @ipr_cmd: ipr command struct 6516 * 6517 * This function handles the failure of an IOA bringup command. 6518 * 6519 * Return value: 6520 * IPR_RC_JOB_RETURN 6521 **/ 6522static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 6523{ 6524 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6525 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6526 6527 dev_err(&ioa_cfg->pdev->dev, 6528 "0x%02X failed with IOASC: 0x%08X\n", 6529 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 6530 6531 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6532 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6533 return IPR_RC_JOB_RETURN; 6534} 6535 6536/** 6537 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 6538 * @ipr_cmd: ipr command struct 6539 * 6540 * This function handles the failure of a Mode Sense to the IOAFP. 6541 * Some adapters do not handle all mode pages. 6542 * 6543 * Return value: 6544 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6545 **/ 6546static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 6547{ 6548 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6549 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6550 6551 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6552 ipr_cmd->job_step = ipr_set_supported_devs; 6553 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6554 struct ipr_resource_entry, queue); 6555 return IPR_RC_JOB_CONTINUE; 6556 } 6557 6558 return ipr_reset_cmd_failed(ipr_cmd); 6559} 6560 6561/** 6562 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 6563 * @ipr_cmd: ipr command struct 6564 * 6565 * This function send a Page 28 mode sense to the IOA to 6566 * retrieve SCSI bus attributes. 6567 * 6568 * Return value: 6569 * IPR_RC_JOB_RETURN 6570 **/ 6571static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 6572{ 6573 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6574 6575 ENTER; 6576 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6577 0x28, ioa_cfg->vpd_cbs_dma + 6578 offsetof(struct ipr_misc_cbs, mode_pages), 6579 sizeof(struct ipr_mode_pages)); 6580 6581 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 6582 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 6583 6584 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6585 6586 LEAVE; 6587 return IPR_RC_JOB_RETURN; 6588} 6589 6590/** 6591 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 6592 * @ipr_cmd: ipr command struct 6593 * 6594 * This function enables dual IOA RAID support if possible. 6595 * 6596 * Return value: 6597 * IPR_RC_JOB_RETURN 6598 **/ 6599static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 6600{ 6601 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6602 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6603 struct ipr_mode_page24 *mode_page; 6604 int length; 6605 6606 ENTER; 6607 mode_page = ipr_get_mode_page(mode_pages, 0x24, 6608 sizeof(struct ipr_mode_page24)); 6609 6610 if (mode_page) 6611 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 6612 6613 length = mode_pages->hdr.length + 1; 6614 mode_pages->hdr.length = 0; 6615 6616 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6617 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6618 length); 6619 6620 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6621 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6622 6623 LEAVE; 6624 return IPR_RC_JOB_RETURN; 6625} 6626 6627/** 6628 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 6629 * @ipr_cmd: ipr command struct 6630 * 6631 * This function handles the failure of a Mode Sense to the IOAFP. 6632 * Some adapters do not handle all mode pages. 6633 * 6634 * Return value: 6635 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6636 **/ 6637static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 6638{ 6639 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 6640 6641 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6642 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6643 return IPR_RC_JOB_CONTINUE; 6644 } 6645 6646 return ipr_reset_cmd_failed(ipr_cmd); 6647} 6648 6649/** 6650 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 6651 * @ipr_cmd: ipr command struct 6652 * 6653 * This function send a mode sense to the IOA to retrieve 6654 * the IOA Advanced Function Control mode page. 6655 * 6656 * Return value: 6657 * IPR_RC_JOB_RETURN 6658 **/ 6659static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 6660{ 6661 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6662 6663 ENTER; 6664 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6665 0x24, ioa_cfg->vpd_cbs_dma + 6666 offsetof(struct ipr_misc_cbs, mode_pages), 6667 sizeof(struct ipr_mode_pages)); 6668 6669 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 6670 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 6671 6672 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6673 6674 LEAVE; 6675 return IPR_RC_JOB_RETURN; 6676} 6677 6678/** 6679 * ipr_init_res_table - Initialize the resource table 6680 * @ipr_cmd: ipr command struct 6681 * 6682 * This function looks through the existing resource table, comparing 6683 * it with the config table. This function will take care of old/new 6684 * devices and schedule adding/removing them from the mid-layer 6685 * as appropriate. 6686 * 6687 * Return value: 6688 * IPR_RC_JOB_CONTINUE 6689 **/ 6690static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 6691{ 6692 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6693 struct ipr_resource_entry *res, *temp; 6694 struct ipr_config_table_entry_wrapper cfgtew; 6695 int entries, found, flag, i; 6696 LIST_HEAD(old_res); 6697 6698 ENTER; 6699 if (ioa_cfg->sis64) 6700 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 6701 else 6702 flag = ioa_cfg->u.cfg_table->hdr.flags; 6703 6704 if (flag & IPR_UCODE_DOWNLOAD_REQ) 6705 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 6706 6707 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6708 list_move_tail(&res->queue, &old_res); 6709 6710 if (ioa_cfg->sis64) 6711 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); 6712 else 6713 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 6714 6715 for (i = 0; i < entries; i++) { 6716 if (ioa_cfg->sis64) 6717 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 6718 else 6719 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 6720 found = 0; 6721 6722 list_for_each_entry_safe(res, temp, &old_res, queue) { 6723 if (ipr_is_same_device(res, &cfgtew)) { 6724 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6725 found = 1; 6726 break; 6727 } 6728 } 6729 6730 if (!found) { 6731 if (list_empty(&ioa_cfg->free_res_q)) { 6732 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6733 break; 6734 } 6735 6736 found = 1; 6737 res = list_entry(ioa_cfg->free_res_q.next, 6738 struct ipr_resource_entry, queue); 6739 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6740 ipr_init_res_entry(res, &cfgtew); 6741 res->add_to_ml = 1; 6742 } 6743 6744 if (found) 6745 ipr_update_res_entry(res, &cfgtew); 6746 } 6747 6748 list_for_each_entry_safe(res, temp, &old_res, queue) { 6749 if (res->sdev) { 6750 res->del_from_ml = 1; 6751 res->res_handle = IPR_INVALID_RES_HANDLE; 6752 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6753 } 6754 } 6755 6756 list_for_each_entry_safe(res, temp, &old_res, queue) { 6757 ipr_clear_res_target(res); 6758 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6759 } 6760 6761 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6762 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6763 else 6764 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6765 6766 LEAVE; 6767 return IPR_RC_JOB_CONTINUE; 6768} 6769 6770/** 6771 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6772 * @ipr_cmd: ipr command struct 6773 * 6774 * This function sends a Query IOA Configuration command 6775 * to the adapter to retrieve the IOA configuration table. 6776 * 6777 * Return value: 6778 * IPR_RC_JOB_RETURN 6779 **/ 6780static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6781{ 6782 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6783 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6784 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6785 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6786 6787 ENTER; 6788 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6789 ioa_cfg->dual_raid = 1; 6790 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6791 ucode_vpd->major_release, ucode_vpd->card_type, 6792 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6793 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6794 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6795 6796 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6797 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; 6798 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 6799 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 6800 6801 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 6802 IPR_IOADL_FLAGS_READ_LAST); 6803 6804 ipr_cmd->job_step = ipr_init_res_table; 6805 6806 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6807 6808 LEAVE; 6809 return IPR_RC_JOB_RETURN; 6810} 6811 6812/** 6813 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6814 * @ipr_cmd: ipr command struct 6815 * 6816 * This utility function sends an inquiry to the adapter. 6817 * 6818 * Return value: 6819 * none 6820 **/ 6821static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6822 dma_addr_t dma_addr, u8 xfer_len) 6823{ 6824 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6825 6826 ENTER; 6827 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6828 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6829 6830 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6831 ioarcb->cmd_pkt.cdb[1] = flags; 6832 ioarcb->cmd_pkt.cdb[2] = page; 6833 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6834 6835 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6836 6837 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6838 LEAVE; 6839} 6840 6841/** 6842 * ipr_inquiry_page_supported - Is the given inquiry page supported 6843 * @page0: inquiry page 0 buffer 6844 * @page: page code. 6845 * 6846 * This function determines if the specified inquiry page is supported. 6847 * 6848 * Return value: 6849 * 1 if page is supported / 0 if not 6850 **/ 6851static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6852{ 6853 int i; 6854 6855 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6856 if (page0->page[i] == page) 6857 return 1; 6858 6859 return 0; 6860} 6861 6862/** 6863 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6864 * @ipr_cmd: ipr command struct 6865 * 6866 * This function sends a Page 0xD0 inquiry to the adapter 6867 * to retrieve adapter capabilities. 6868 * 6869 * Return value: 6870 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6871 **/ 6872static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6873{ 6874 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6875 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6876 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6877 6878 ENTER; 6879 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6880 memset(cap, 0, sizeof(*cap)); 6881 6882 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6883 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6884 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6885 sizeof(struct ipr_inquiry_cap)); 6886 return IPR_RC_JOB_RETURN; 6887 } 6888 6889 LEAVE; 6890 return IPR_RC_JOB_CONTINUE; 6891} 6892 6893/** 6894 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6895 * @ipr_cmd: ipr command struct 6896 * 6897 * This function sends a Page 3 inquiry to the adapter 6898 * to retrieve software VPD information. 6899 * 6900 * Return value: 6901 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6902 **/ 6903static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6904{ 6905 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6906 6907 ENTER; 6908 6909 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6910 6911 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6912 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6913 sizeof(struct ipr_inquiry_page3)); 6914 6915 LEAVE; 6916 return IPR_RC_JOB_RETURN; 6917} 6918 6919/** 6920 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6921 * @ipr_cmd: ipr command struct 6922 * 6923 * This function sends a Page 0 inquiry to the adapter 6924 * to retrieve supported inquiry pages. 6925 * 6926 * Return value: 6927 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6928 **/ 6929static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6930{ 6931 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6932 char type[5]; 6933 6934 ENTER; 6935 6936 /* Grab the type out of the VPD and store it away */ 6937 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6938 type[4] = '\0'; 6939 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6940 6941 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6942 6943 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6944 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6945 sizeof(struct ipr_inquiry_page0)); 6946 6947 LEAVE; 6948 return IPR_RC_JOB_RETURN; 6949} 6950 6951/** 6952 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6953 * @ipr_cmd: ipr command struct 6954 * 6955 * This function sends a standard inquiry to the adapter. 6956 * 6957 * Return value: 6958 * IPR_RC_JOB_RETURN 6959 **/ 6960static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6961{ 6962 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6963 6964 ENTER; 6965 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6966 6967 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6968 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6969 sizeof(struct ipr_ioa_vpd)); 6970 6971 LEAVE; 6972 return IPR_RC_JOB_RETURN; 6973} 6974 6975/** 6976 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 6977 * @ipr_cmd: ipr command struct 6978 * 6979 * This function send an Identify Host Request Response Queue 6980 * command to establish the HRRQ with the adapter. 6981 * 6982 * Return value: 6983 * IPR_RC_JOB_RETURN 6984 **/ 6985static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 6986{ 6987 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6988 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6989 6990 ENTER; 6991 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 6992 6993 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 6994 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6995 6996 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6997 if (ioa_cfg->sis64) 6998 ioarcb->cmd_pkt.cdb[1] = 0x1; 6999 ioarcb->cmd_pkt.cdb[2] = 7000 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; 7001 ioarcb->cmd_pkt.cdb[3] = 7002 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; 7003 ioarcb->cmd_pkt.cdb[4] = 7004 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; 7005 ioarcb->cmd_pkt.cdb[5] = 7006 ((u64) ioa_cfg->host_rrq_dma) & 0xff; 7007 ioarcb->cmd_pkt.cdb[7] = 7008 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 7009 ioarcb->cmd_pkt.cdb[8] = 7010 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 7011 7012 if (ioa_cfg->sis64) { 7013 ioarcb->cmd_pkt.cdb[10] = 7014 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; 7015 ioarcb->cmd_pkt.cdb[11] = 7016 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; 7017 ioarcb->cmd_pkt.cdb[12] = 7018 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; 7019 ioarcb->cmd_pkt.cdb[13] = 7020 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; 7021 } 7022 7023 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 7024 7025 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7026 7027 LEAVE; 7028 return IPR_RC_JOB_RETURN; 7029} 7030 7031/** 7032 * ipr_reset_timer_done - Adapter reset timer function 7033 * @ipr_cmd: ipr command struct 7034 * 7035 * Description: This function is used in adapter reset processing 7036 * for timing events. If the reset_cmd pointer in the IOA 7037 * config struct is not this adapter's we are doing nested 7038 * resets and fail_all_ops will take care of freeing the 7039 * command block. 7040 * 7041 * Return value: 7042 * none 7043 **/ 7044static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 7045{ 7046 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7047 unsigned long lock_flags = 0; 7048 7049 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7050 7051 if (ioa_cfg->reset_cmd == ipr_cmd) { 7052 list_del(&ipr_cmd->queue); 7053 ipr_cmd->done(ipr_cmd); 7054 } 7055 7056 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7057} 7058 7059/** 7060 * ipr_reset_start_timer - Start a timer for adapter reset job 7061 * @ipr_cmd: ipr command struct 7062 * @timeout: timeout value 7063 * 7064 * Description: This function is used in adapter reset processing 7065 * for timing events. If the reset_cmd pointer in the IOA 7066 * config struct is not this adapter's we are doing nested 7067 * resets and fail_all_ops will take care of freeing the 7068 * command block. 7069 * 7070 * Return value: 7071 * none 7072 **/ 7073static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 7074 unsigned long timeout) 7075{ 7076 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7077 ipr_cmd->done = ipr_reset_ioa_job; 7078 7079 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7080 ipr_cmd->timer.expires = jiffies + timeout; 7081 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 7082 add_timer(&ipr_cmd->timer); 7083} 7084 7085/** 7086 * ipr_init_ioa_mem - Initialize ioa_cfg control block 7087 * @ioa_cfg: ioa cfg struct 7088 * 7089 * Return value: 7090 * nothing 7091 **/ 7092static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 7093{ 7094 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 7095 7096 /* Initialize Host RRQ pointers */ 7097 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 7098 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 7099 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 7100 ioa_cfg->toggle_bit = 1; 7101 7102 /* Zero out config table */ 7103 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 7104} 7105 7106/** 7107 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 7108 * @ipr_cmd: ipr command struct 7109 * 7110 * Return value: 7111 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7112 **/ 7113static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 7114{ 7115 unsigned long stage, stage_time; 7116 u32 feedback; 7117 volatile u32 int_reg; 7118 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7119 u64 maskval = 0; 7120 7121 feedback = readl(ioa_cfg->regs.init_feedback_reg); 7122 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 7123 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 7124 7125 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 7126 7127 /* sanity check the stage_time value */ 7128 if (stage_time == 0) 7129 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; 7130 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 7131 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 7132 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 7133 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 7134 7135 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 7136 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 7137 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7138 stage_time = ioa_cfg->transop_timeout; 7139 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7140 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 7141 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7142 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7143 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 7144 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 7145 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7146 return IPR_RC_JOB_CONTINUE; 7147 } 7148 7149 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7150 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 7151 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7152 ipr_cmd->done = ipr_reset_ioa_job; 7153 add_timer(&ipr_cmd->timer); 7154 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7155 7156 return IPR_RC_JOB_RETURN; 7157} 7158 7159/** 7160 * ipr_reset_enable_ioa - Enable the IOA following a reset. 7161 * @ipr_cmd: ipr command struct 7162 * 7163 * This function reinitializes some control blocks and 7164 * enables destructive diagnostics on the adapter. 7165 * 7166 * Return value: 7167 * IPR_RC_JOB_RETURN 7168 **/ 7169static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 7170{ 7171 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7172 volatile u32 int_reg; 7173 7174 ENTER; 7175 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7176 ipr_init_ioa_mem(ioa_cfg); 7177 7178 ioa_cfg->allow_interrupts = 1; 7179 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7180 7181 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7182 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 7183 ioa_cfg->regs.clr_interrupt_mask_reg32); 7184 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7185 return IPR_RC_JOB_CONTINUE; 7186 } 7187 7188 /* Enable destructive diagnostics on IOA */ 7189 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 7190 7191 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 7192 if (ioa_cfg->sis64) 7193 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_mask_reg); 7194 7195 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7196 7197 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 7198 7199 if (ioa_cfg->sis64) { 7200 ipr_cmd->job_step = ipr_reset_next_stage; 7201 return IPR_RC_JOB_CONTINUE; 7202 } 7203 7204 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7205 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 7206 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7207 ipr_cmd->done = ipr_reset_ioa_job; 7208 add_timer(&ipr_cmd->timer); 7209 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7210 7211 LEAVE; 7212 return IPR_RC_JOB_RETURN; 7213} 7214 7215/** 7216 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 7217 * @ipr_cmd: ipr command struct 7218 * 7219 * This function is invoked when an adapter dump has run out 7220 * of processing time. 7221 * 7222 * Return value: 7223 * IPR_RC_JOB_CONTINUE 7224 **/ 7225static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 7226{ 7227 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7228 7229 if (ioa_cfg->sdt_state == GET_DUMP) 7230 ioa_cfg->sdt_state = ABORT_DUMP; 7231 7232 ipr_cmd->job_step = ipr_reset_alert; 7233 7234 return IPR_RC_JOB_CONTINUE; 7235} 7236 7237/** 7238 * ipr_unit_check_no_data - Log a unit check/no data error log 7239 * @ioa_cfg: ioa config struct 7240 * 7241 * Logs an error indicating the adapter unit checked, but for some 7242 * reason, we were unable to fetch the unit check buffer. 7243 * 7244 * Return value: 7245 * nothing 7246 **/ 7247static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 7248{ 7249 ioa_cfg->errors_logged++; 7250 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 7251} 7252 7253/** 7254 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 7255 * @ioa_cfg: ioa config struct 7256 * 7257 * Fetches the unit check buffer from the adapter by clocking the data 7258 * through the mailbox register. 7259 * 7260 * Return value: 7261 * nothing 7262 **/ 7263static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 7264{ 7265 unsigned long mailbox; 7266 struct ipr_hostrcb *hostrcb; 7267 struct ipr_uc_sdt sdt; 7268 int rc, length; 7269 u32 ioasc; 7270 7271 mailbox = readl(ioa_cfg->ioa_mailbox); 7272 7273 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 7274 ipr_unit_check_no_data(ioa_cfg); 7275 return; 7276 } 7277 7278 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 7279 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 7280 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 7281 7282 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 7283 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 7284 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 7285 ipr_unit_check_no_data(ioa_cfg); 7286 return; 7287 } 7288 7289 /* Find length of the first sdt entry (UC buffer) */ 7290 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 7291 length = be32_to_cpu(sdt.entry[0].end_token); 7292 else 7293 length = (be32_to_cpu(sdt.entry[0].end_token) - 7294 be32_to_cpu(sdt.entry[0].start_token)) & 7295 IPR_FMT2_MBX_ADDR_MASK; 7296 7297 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 7298 struct ipr_hostrcb, queue); 7299 list_del(&hostrcb->queue); 7300 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 7301 7302 rc = ipr_get_ldump_data_section(ioa_cfg, 7303 be32_to_cpu(sdt.entry[0].start_token), 7304 (__be32 *)&hostrcb->hcam, 7305 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 7306 7307 if (!rc) { 7308 ipr_handle_log_data(ioa_cfg, hostrcb); 7309 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 7310 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 7311 ioa_cfg->sdt_state == GET_DUMP) 7312 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7313 } else 7314 ipr_unit_check_no_data(ioa_cfg); 7315 7316 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 7317} 7318 7319/** 7320 * ipr_reset_restore_cfg_space - Restore PCI config space. 7321 * @ipr_cmd: ipr command struct 7322 * 7323 * Description: This function restores the saved PCI config space of 7324 * the adapter, fails all outstanding ops back to the callers, and 7325 * fetches the dump/unit check if applicable to this reset. 7326 * 7327 * Return value: 7328 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7329 **/ 7330static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 7331{ 7332 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7333 int rc; 7334 7335 ENTER; 7336 ioa_cfg->pdev->state_saved = true; 7337 rc = pci_restore_state(ioa_cfg->pdev); 7338 7339 if (rc != PCIBIOS_SUCCESSFUL) { 7340 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7341 return IPR_RC_JOB_CONTINUE; 7342 } 7343 7344 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 7345 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7346 return IPR_RC_JOB_CONTINUE; 7347 } 7348 7349 ipr_fail_all_ops(ioa_cfg); 7350 7351 if (ioa_cfg->ioa_unit_checked) { 7352 ioa_cfg->ioa_unit_checked = 0; 7353 ipr_get_unit_check_buffer(ioa_cfg); 7354 ipr_cmd->job_step = ipr_reset_alert; 7355 ipr_reset_start_timer(ipr_cmd, 0); 7356 return IPR_RC_JOB_RETURN; 7357 } 7358 7359 if (ioa_cfg->in_ioa_bringdown) { 7360 ipr_cmd->job_step = ipr_ioa_bringdown_done; 7361 } else { 7362 ipr_cmd->job_step = ipr_reset_enable_ioa; 7363 7364 if (GET_DUMP == ioa_cfg->sdt_state) { 7365 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 7366 ipr_cmd->job_step = ipr_reset_wait_for_dump; 7367 schedule_work(&ioa_cfg->work_q); 7368 return IPR_RC_JOB_RETURN; 7369 } 7370 } 7371 7372 LEAVE; 7373 return IPR_RC_JOB_CONTINUE; 7374} 7375 7376/** 7377 * ipr_reset_bist_done - BIST has completed on the adapter. 7378 * @ipr_cmd: ipr command struct 7379 * 7380 * Description: Unblock config space and resume the reset process. 7381 * 7382 * Return value: 7383 * IPR_RC_JOB_CONTINUE 7384 **/ 7385static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 7386{ 7387 ENTER; 7388 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7389 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 7390 LEAVE; 7391 return IPR_RC_JOB_CONTINUE; 7392} 7393 7394/** 7395 * ipr_reset_start_bist - Run BIST on the adapter. 7396 * @ipr_cmd: ipr command struct 7397 * 7398 * Description: This function runs BIST on the adapter, then delays 2 seconds. 7399 * 7400 * Return value: 7401 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7402 **/ 7403static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 7404{ 7405 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7406 int rc; 7407 7408 ENTER; 7409 pci_block_user_cfg_access(ioa_cfg->pdev); 7410 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 7411 7412 if (rc != PCIBIOS_SUCCESSFUL) { 7413 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7414 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7415 rc = IPR_RC_JOB_CONTINUE; 7416 } else { 7417 ipr_cmd->job_step = ipr_reset_bist_done; 7418 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7419 rc = IPR_RC_JOB_RETURN; 7420 } 7421 7422 LEAVE; 7423 return rc; 7424} 7425 7426/** 7427 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 7428 * @ipr_cmd: ipr command struct 7429 * 7430 * Description: This clears PCI reset to the adapter and delays two seconds. 7431 * 7432 * Return value: 7433 * IPR_RC_JOB_RETURN 7434 **/ 7435static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 7436{ 7437 ENTER; 7438 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 7439 ipr_cmd->job_step = ipr_reset_bist_done; 7440 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7441 LEAVE; 7442 return IPR_RC_JOB_RETURN; 7443} 7444 7445/** 7446 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 7447 * @ipr_cmd: ipr command struct 7448 * 7449 * Description: This asserts PCI reset to the adapter. 7450 * 7451 * Return value: 7452 * IPR_RC_JOB_RETURN 7453 **/ 7454static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 7455{ 7456 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7457 struct pci_dev *pdev = ioa_cfg->pdev; 7458 7459 ENTER; 7460 pci_block_user_cfg_access(pdev); 7461 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 7462 ipr_cmd->job_step = ipr_reset_slot_reset_done; 7463 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 7464 LEAVE; 7465 return IPR_RC_JOB_RETURN; 7466} 7467 7468/** 7469 * ipr_reset_allowed - Query whether or not IOA can be reset 7470 * @ioa_cfg: ioa config struct 7471 * 7472 * Return value: 7473 * 0 if reset not allowed / non-zero if reset is allowed 7474 **/ 7475static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 7476{ 7477 volatile u32 temp_reg; 7478 7479 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7480 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 7481} 7482 7483/** 7484 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 7485 * @ipr_cmd: ipr command struct 7486 * 7487 * Description: This function waits for adapter permission to run BIST, 7488 * then runs BIST. If the adapter does not give permission after a 7489 * reasonable time, we will reset the adapter anyway. The impact of 7490 * resetting the adapter without warning the adapter is the risk of 7491 * losing the persistent error log on the adapter. If the adapter is 7492 * reset while it is writing to the flash on the adapter, the flash 7493 * segment will have bad ECC and be zeroed. 7494 * 7495 * Return value: 7496 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7497 **/ 7498static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 7499{ 7500 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7501 int rc = IPR_RC_JOB_RETURN; 7502 7503 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 7504 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7505 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7506 } else { 7507 ipr_cmd->job_step = ioa_cfg->reset; 7508 rc = IPR_RC_JOB_CONTINUE; 7509 } 7510 7511 return rc; 7512} 7513 7514/** 7515 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 7516 * @ipr_cmd: ipr command struct 7517 * 7518 * Description: This function alerts the adapter that it will be reset. 7519 * If memory space is not currently enabled, proceed directly 7520 * to running BIST on the adapter. The timer must always be started 7521 * so we guarantee we do not run BIST from ipr_isr. 7522 * 7523 * Return value: 7524 * IPR_RC_JOB_RETURN 7525 **/ 7526static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 7527{ 7528 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7529 u16 cmd_reg; 7530 int rc; 7531 7532 ENTER; 7533 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 7534 7535 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 7536 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 7537 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 7538 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 7539 } else { 7540 ipr_cmd->job_step = ioa_cfg->reset; 7541 } 7542 7543 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7544 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7545 7546 LEAVE; 7547 return IPR_RC_JOB_RETURN; 7548} 7549 7550/** 7551 * ipr_reset_ucode_download_done - Microcode download completion 7552 * @ipr_cmd: ipr command struct 7553 * 7554 * Description: This function unmaps the microcode download buffer. 7555 * 7556 * Return value: 7557 * IPR_RC_JOB_CONTINUE 7558 **/ 7559static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 7560{ 7561 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7562 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7563 7564 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 7565 sglist->num_sg, DMA_TO_DEVICE); 7566 7567 ipr_cmd->job_step = ipr_reset_alert; 7568 return IPR_RC_JOB_CONTINUE; 7569} 7570 7571/** 7572 * ipr_reset_ucode_download - Download microcode to the adapter 7573 * @ipr_cmd: ipr command struct 7574 * 7575 * Description: This function checks to see if it there is microcode 7576 * to download to the adapter. If there is, a download is performed. 7577 * 7578 * Return value: 7579 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7580 **/ 7581static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 7582{ 7583 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7584 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7585 7586 ENTER; 7587 ipr_cmd->job_step = ipr_reset_alert; 7588 7589 if (!sglist) 7590 return IPR_RC_JOB_CONTINUE; 7591 7592 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7593 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7594 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 7595 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 7596 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 7597 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 7598 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 7599 7600 if (ioa_cfg->sis64) 7601 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 7602 else 7603 ipr_build_ucode_ioadl(ipr_cmd, sglist); 7604 ipr_cmd->job_step = ipr_reset_ucode_download_done; 7605 7606 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7607 IPR_WRITE_BUFFER_TIMEOUT); 7608 7609 LEAVE; 7610 return IPR_RC_JOB_RETURN; 7611} 7612 7613/** 7614 * ipr_reset_shutdown_ioa - Shutdown the adapter 7615 * @ipr_cmd: ipr command struct 7616 * 7617 * Description: This function issues an adapter shutdown of the 7618 * specified type to the specified adapter as part of the 7619 * adapter reset job. 7620 * 7621 * Return value: 7622 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7623 **/ 7624static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 7625{ 7626 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7627 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 7628 unsigned long timeout; 7629 int rc = IPR_RC_JOB_CONTINUE; 7630 7631 ENTER; 7632 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 7633 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7634 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7635 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 7636 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 7637 7638 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 7639 timeout = IPR_SHUTDOWN_TIMEOUT; 7640 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 7641 timeout = IPR_INTERNAL_TIMEOUT; 7642 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7643 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 7644 else 7645 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 7646 7647 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 7648 7649 rc = IPR_RC_JOB_RETURN; 7650 ipr_cmd->job_step = ipr_reset_ucode_download; 7651 } else 7652 ipr_cmd->job_step = ipr_reset_alert; 7653 7654 LEAVE; 7655 return rc; 7656} 7657 7658/** 7659 * ipr_reset_ioa_job - Adapter reset job 7660 * @ipr_cmd: ipr command struct 7661 * 7662 * Description: This function is the job router for the adapter reset job. 7663 * 7664 * Return value: 7665 * none 7666 **/ 7667static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 7668{ 7669 u32 rc, ioasc; 7670 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7671 7672 do { 7673 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc); 7674 7675 if (ioa_cfg->reset_cmd != ipr_cmd) { 7676 /* 7677 * We are doing nested adapter resets and this is 7678 * not the current reset job. 7679 */ 7680 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7681 return; 7682 } 7683 7684 if (IPR_IOASC_SENSE_KEY(ioasc)) { 7685 rc = ipr_cmd->job_step_failed(ipr_cmd); 7686 if (rc == IPR_RC_JOB_RETURN) 7687 return; 7688 } 7689 7690 ipr_reinit_ipr_cmnd(ipr_cmd); 7691 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 7692 rc = ipr_cmd->job_step(ipr_cmd); 7693 } while(rc == IPR_RC_JOB_CONTINUE); 7694} 7695 7696/** 7697 * _ipr_initiate_ioa_reset - Initiate an adapter reset 7698 * @ioa_cfg: ioa config struct 7699 * @job_step: first job step of reset job 7700 * @shutdown_type: shutdown type 7701 * 7702 * Description: This function will initiate the reset of the given adapter 7703 * starting at the selected job step. 7704 * If the caller needs to wait on the completion of the reset, 7705 * the caller must sleep on the reset_wait_q. 7706 * 7707 * Return value: 7708 * none 7709 **/ 7710static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7711 int (*job_step) (struct ipr_cmnd *), 7712 enum ipr_shutdown_type shutdown_type) 7713{ 7714 struct ipr_cmnd *ipr_cmd; 7715 7716 ioa_cfg->in_reset_reload = 1; 7717 ioa_cfg->allow_cmds = 0; 7718 scsi_block_requests(ioa_cfg->host); 7719 7720 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 7721 ioa_cfg->reset_cmd = ipr_cmd; 7722 ipr_cmd->job_step = job_step; 7723 ipr_cmd->u.shutdown_type = shutdown_type; 7724 7725 ipr_reset_ioa_job(ipr_cmd); 7726} 7727 7728/** 7729 * ipr_initiate_ioa_reset - Initiate an adapter reset 7730 * @ioa_cfg: ioa config struct 7731 * @shutdown_type: shutdown type 7732 * 7733 * Description: This function will initiate the reset of the given adapter. 7734 * If the caller needs to wait on the completion of the reset, 7735 * the caller must sleep on the reset_wait_q. 7736 * 7737 * Return value: 7738 * none 7739 **/ 7740static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7741 enum ipr_shutdown_type shutdown_type) 7742{ 7743 if (ioa_cfg->ioa_is_dead) 7744 return; 7745 7746 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 7747 ioa_cfg->sdt_state = ABORT_DUMP; 7748 7749 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 7750 dev_err(&ioa_cfg->pdev->dev, 7751 "IOA taken offline - error recovery failed\n"); 7752 7753 ioa_cfg->reset_retries = 0; 7754 ioa_cfg->ioa_is_dead = 1; 7755 7756 if (ioa_cfg->in_ioa_bringdown) { 7757 ioa_cfg->reset_cmd = NULL; 7758 ioa_cfg->in_reset_reload = 0; 7759 ipr_fail_all_ops(ioa_cfg); 7760 wake_up_all(&ioa_cfg->reset_wait_q); 7761 7762 spin_unlock_irq(ioa_cfg->host->host_lock); 7763 scsi_unblock_requests(ioa_cfg->host); 7764 spin_lock_irq(ioa_cfg->host->host_lock); 7765 return; 7766 } else { 7767 ioa_cfg->in_ioa_bringdown = 1; 7768 shutdown_type = IPR_SHUTDOWN_NONE; 7769 } 7770 } 7771 7772 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 7773 shutdown_type); 7774} 7775 7776/** 7777 * ipr_reset_freeze - Hold off all I/O activity 7778 * @ipr_cmd: ipr command struct 7779 * 7780 * Description: If the PCI slot is frozen, hold off all I/O 7781 * activity; then, as soon as the slot is available again, 7782 * initiate an adapter reset. 7783 */ 7784static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 7785{ 7786 /* Disallow new interrupts, avoid loop */ 7787 ipr_cmd->ioa_cfg->allow_interrupts = 0; 7788 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7789 ipr_cmd->done = ipr_reset_ioa_job; 7790 return IPR_RC_JOB_RETURN; 7791} 7792 7793/** 7794 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 7795 * @pdev: PCI device struct 7796 * 7797 * Description: This routine is called to tell us that the PCI bus 7798 * is down. Can't do anything here, except put the device driver 7799 * into a holding pattern, waiting for the PCI bus to come back. 7800 */ 7801static void ipr_pci_frozen(struct pci_dev *pdev) 7802{ 7803 unsigned long flags = 0; 7804 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7805 7806 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7807 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 7808 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7809} 7810 7811/** 7812 * ipr_pci_slot_reset - Called when PCI slot has been reset. 7813 * @pdev: PCI device struct 7814 * 7815 * Description: This routine is called by the pci error recovery 7816 * code after the PCI slot has been reset, just before we 7817 * should resume normal operations. 7818 */ 7819static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 7820{ 7821 unsigned long flags = 0; 7822 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7823 7824 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7825 if (ioa_cfg->needs_warm_reset) 7826 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7827 else 7828 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 7829 IPR_SHUTDOWN_NONE); 7830 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7831 return PCI_ERS_RESULT_RECOVERED; 7832} 7833 7834/** 7835 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 7836 * @pdev: PCI device struct 7837 * 7838 * Description: This routine is called when the PCI bus has 7839 * permanently failed. 7840 */ 7841static void ipr_pci_perm_failure(struct pci_dev *pdev) 7842{ 7843 unsigned long flags = 0; 7844 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7845 7846 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7847 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7848 ioa_cfg->sdt_state = ABORT_DUMP; 7849 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 7850 ioa_cfg->in_ioa_bringdown = 1; 7851 ioa_cfg->allow_cmds = 0; 7852 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7853 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7854} 7855 7856/** 7857 * ipr_pci_error_detected - Called when a PCI error is detected. 7858 * @pdev: PCI device struct 7859 * @state: PCI channel state 7860 * 7861 * Description: Called when a PCI error is detected. 7862 * 7863 * Return value: 7864 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7865 */ 7866static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7867 pci_channel_state_t state) 7868{ 7869 switch (state) { 7870 case pci_channel_io_frozen: 7871 ipr_pci_frozen(pdev); 7872 return PCI_ERS_RESULT_NEED_RESET; 7873 case pci_channel_io_perm_failure: 7874 ipr_pci_perm_failure(pdev); 7875 return PCI_ERS_RESULT_DISCONNECT; 7876 break; 7877 default: 7878 break; 7879 } 7880 return PCI_ERS_RESULT_NEED_RESET; 7881} 7882 7883/** 7884 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7885 * @ioa_cfg: ioa cfg struct 7886 * 7887 * Description: This is the second phase of adapter intialization 7888 * This function takes care of initilizing the adapter to the point 7889 * where it can accept new commands. 7890 7891 * Return value: 7892 * 0 on success / -EIO on failure 7893 **/ 7894static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7895{ 7896 int rc = 0; 7897 unsigned long host_lock_flags = 0; 7898 7899 ENTER; 7900 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7901 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7902 if (ioa_cfg->needs_hard_reset) { 7903 ioa_cfg->needs_hard_reset = 0; 7904 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7905 } else 7906 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7907 IPR_SHUTDOWN_NONE); 7908 7909 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7910 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7911 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7912 7913 if (ioa_cfg->ioa_is_dead) { 7914 rc = -EIO; 7915 } else if (ipr_invalid_adapter(ioa_cfg)) { 7916 if (!ipr_testmode) 7917 rc = -EIO; 7918 7919 dev_err(&ioa_cfg->pdev->dev, 7920 "Adapter not supported in this hardware configuration.\n"); 7921 } 7922 7923 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7924 7925 LEAVE; 7926 return rc; 7927} 7928 7929/** 7930 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7931 * @ioa_cfg: ioa config struct 7932 * 7933 * Return value: 7934 * none 7935 **/ 7936static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7937{ 7938 int i; 7939 7940 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7941 if (ioa_cfg->ipr_cmnd_list[i]) 7942 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7943 ioa_cfg->ipr_cmnd_list[i], 7944 ioa_cfg->ipr_cmnd_list_dma[i]); 7945 7946 ioa_cfg->ipr_cmnd_list[i] = NULL; 7947 } 7948 7949 if (ioa_cfg->ipr_cmd_pool) 7950 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7951 7952 ioa_cfg->ipr_cmd_pool = NULL; 7953} 7954 7955/** 7956 * ipr_free_mem - Frees memory allocated for an adapter 7957 * @ioa_cfg: ioa cfg struct 7958 * 7959 * Return value: 7960 * nothing 7961 **/ 7962static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7963{ 7964 int i; 7965 7966 kfree(ioa_cfg->res_entries); 7967 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7968 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7969 ipr_free_cmd_blks(ioa_cfg); 7970 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7971 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7972 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, 7973 ioa_cfg->u.cfg_table, 7974 ioa_cfg->cfg_table_dma); 7975 7976 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7977 pci_free_consistent(ioa_cfg->pdev, 7978 sizeof(struct ipr_hostrcb), 7979 ioa_cfg->hostrcb[i], 7980 ioa_cfg->hostrcb_dma[i]); 7981 } 7982 7983 ipr_free_dump(ioa_cfg); 7984 kfree(ioa_cfg->trace); 7985} 7986 7987/** 7988 * ipr_free_all_resources - Free all allocated resources for an adapter. 7989 * @ipr_cmd: ipr command struct 7990 * 7991 * This function frees all allocated resources for the 7992 * specified adapter. 7993 * 7994 * Return value: 7995 * none 7996 **/ 7997static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 7998{ 7999 struct pci_dev *pdev = ioa_cfg->pdev; 8000 8001 ENTER; 8002 free_irq(pdev->irq, ioa_cfg); 8003 pci_disable_msi(pdev); 8004 iounmap(ioa_cfg->hdw_dma_regs); 8005 pci_release_regions(pdev); 8006 ipr_free_mem(ioa_cfg); 8007 scsi_host_put(ioa_cfg->host); 8008 pci_disable_device(pdev); 8009 LEAVE; 8010} 8011 8012/** 8013 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 8014 * @ioa_cfg: ioa config struct 8015 * 8016 * Return value: 8017 * 0 on success / -ENOMEM on allocation failure 8018 **/ 8019static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8020{ 8021 struct ipr_cmnd *ipr_cmd; 8022 struct ipr_ioarcb *ioarcb; 8023 dma_addr_t dma_addr; 8024 int i; 8025 8026 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 8027 sizeof(struct ipr_cmnd), 16, 0); 8028 8029 if (!ioa_cfg->ipr_cmd_pool) 8030 return -ENOMEM; 8031 8032 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8033 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 8034 8035 if (!ipr_cmd) { 8036 ipr_free_cmd_blks(ioa_cfg); 8037 return -ENOMEM; 8038 } 8039 8040 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 8041 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 8042 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 8043 8044 ioarcb = &ipr_cmd->ioarcb; 8045 ipr_cmd->dma_addr = dma_addr; 8046 if (ioa_cfg->sis64) 8047 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 8048 else 8049 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 8050 8051 ioarcb->host_response_handle = cpu_to_be32(i << 2); 8052 if (ioa_cfg->sis64) { 8053 ioarcb->u.sis64_addr_data.data_ioadl_addr = 8054 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 8055 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 8056 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 8057 } else { 8058 ioarcb->write_ioadl_addr = 8059 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 8060 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 8061 ioarcb->ioasa_host_pci_addr = 8062 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa)); 8063 } 8064 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 8065 ipr_cmd->cmd_index = i; 8066 ipr_cmd->ioa_cfg = ioa_cfg; 8067 ipr_cmd->sense_buffer_dma = dma_addr + 8068 offsetof(struct ipr_cmnd, sense_buffer); 8069 8070 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8071 } 8072 8073 return 0; 8074} 8075 8076/** 8077 * ipr_alloc_mem - Allocate memory for an adapter 8078 * @ioa_cfg: ioa config struct 8079 * 8080 * Return value: 8081 * 0 on success / non-zero for error 8082 **/ 8083static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 8084{ 8085 struct pci_dev *pdev = ioa_cfg->pdev; 8086 int i, rc = -ENOMEM; 8087 8088 ENTER; 8089 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 8090 ioa_cfg->max_devs_supported, GFP_KERNEL); 8091 8092 if (!ioa_cfg->res_entries) 8093 goto out; 8094 8095 if (ioa_cfg->sis64) { 8096 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * 8097 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8098 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * 8099 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8100 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * 8101 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8102 } 8103 8104 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8105 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8106 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8107 } 8108 8109 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 8110 sizeof(struct ipr_misc_cbs), 8111 &ioa_cfg->vpd_cbs_dma); 8112 8113 if (!ioa_cfg->vpd_cbs) 8114 goto out_free_res_entries; 8115 8116 if (ipr_alloc_cmd_blks(ioa_cfg)) 8117 goto out_free_vpd_cbs; 8118 8119 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 8120 sizeof(u32) * IPR_NUM_CMD_BLKS, 8121 &ioa_cfg->host_rrq_dma); 8122 8123 if (!ioa_cfg->host_rrq) 8124 goto out_ipr_free_cmd_blocks; 8125 8126 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 8127 ioa_cfg->cfg_table_size, 8128 &ioa_cfg->cfg_table_dma); 8129 8130 if (!ioa_cfg->u.cfg_table) 8131 goto out_free_host_rrq; 8132 8133 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8134 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 8135 sizeof(struct ipr_hostrcb), 8136 &ioa_cfg->hostrcb_dma[i]); 8137 8138 if (!ioa_cfg->hostrcb[i]) 8139 goto out_free_hostrcb_dma; 8140 8141 ioa_cfg->hostrcb[i]->hostrcb_dma = 8142 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 8143 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 8144 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 8145 } 8146 8147 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 8148 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 8149 8150 if (!ioa_cfg->trace) 8151 goto out_free_hostrcb_dma; 8152 8153 rc = 0; 8154out: 8155 LEAVE; 8156 return rc; 8157 8158out_free_hostrcb_dma: 8159 while (i-- > 0) { 8160 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 8161 ioa_cfg->hostrcb[i], 8162 ioa_cfg->hostrcb_dma[i]); 8163 } 8164 pci_free_consistent(pdev, ioa_cfg->cfg_table_size, 8165 ioa_cfg->u.cfg_table, 8166 ioa_cfg->cfg_table_dma); 8167out_free_host_rrq: 8168 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8169 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8170out_ipr_free_cmd_blocks: 8171 ipr_free_cmd_blks(ioa_cfg); 8172out_free_vpd_cbs: 8173 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 8174 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8175out_free_res_entries: 8176 kfree(ioa_cfg->res_entries); 8177 goto out; 8178} 8179 8180/** 8181 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 8182 * @ioa_cfg: ioa config struct 8183 * 8184 * Return value: 8185 * none 8186 **/ 8187static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 8188{ 8189 int i; 8190 8191 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 8192 ioa_cfg->bus_attr[i].bus = i; 8193 ioa_cfg->bus_attr[i].qas_enabled = 0; 8194 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 8195 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 8196 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 8197 else 8198 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 8199 } 8200} 8201 8202/** 8203 * ipr_init_ioa_cfg - Initialize IOA config struct 8204 * @ioa_cfg: ioa config struct 8205 * @host: scsi host struct 8206 * @pdev: PCI dev struct 8207 * 8208 * Return value: 8209 * none 8210 **/ 8211static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 8212 struct Scsi_Host *host, struct pci_dev *pdev) 8213{ 8214 const struct ipr_interrupt_offsets *p; 8215 struct ipr_interrupts *t; 8216 void __iomem *base; 8217 8218 ioa_cfg->host = host; 8219 ioa_cfg->pdev = pdev; 8220 ioa_cfg->log_level = ipr_log_level; 8221 ioa_cfg->doorbell = IPR_DOORBELL; 8222 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 8223 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 8224 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 8225 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 8226 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 8227 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 8228 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 8229 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 8230 8231 INIT_LIST_HEAD(&ioa_cfg->free_q); 8232 INIT_LIST_HEAD(&ioa_cfg->pending_q); 8233 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 8234 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 8235 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 8236 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 8237 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 8238 init_waitqueue_head(&ioa_cfg->reset_wait_q); 8239 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8240 ioa_cfg->sdt_state = INACTIVE; 8241 8242 ipr_initialize_bus_attr(ioa_cfg); 8243 ioa_cfg->max_devs_supported = ipr_max_devs; 8244 8245 if (ioa_cfg->sis64) { 8246 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 8247 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 8248 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 8249 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 8250 } else { 8251 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 8252 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 8253 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 8254 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 8255 } 8256 host->max_channel = IPR_MAX_BUS_TO_SCAN; 8257 host->unique_id = host->host_no; 8258 host->max_cmd_len = IPR_MAX_CDB_LEN; 8259 pci_set_drvdata(pdev, ioa_cfg); 8260 8261 p = &ioa_cfg->chip_cfg->regs; 8262 t = &ioa_cfg->regs; 8263 base = ioa_cfg->hdw_dma_regs; 8264 8265 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 8266 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 8267 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 8268 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 8269 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 8270 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 8271 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 8272 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 8273 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 8274 t->ioarrin_reg = base + p->ioarrin_reg; 8275 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 8276 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 8277 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 8278 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 8279 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 8280 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 8281 8282 if (ioa_cfg->sis64) { 8283 t->init_feedback_reg = base + p->init_feedback_reg; 8284 t->dump_addr_reg = base + p->dump_addr_reg; 8285 t->dump_data_reg = base + p->dump_data_reg; 8286 } 8287} 8288 8289/** 8290 * ipr_get_chip_info - Find adapter chip information 8291 * @dev_id: PCI device id struct 8292 * 8293 * Return value: 8294 * ptr to chip information on success / NULL on failure 8295 **/ 8296static const struct ipr_chip_t * __devinit 8297ipr_get_chip_info(const struct pci_device_id *dev_id) 8298{ 8299 int i; 8300 8301 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 8302 if (ipr_chip[i].vendor == dev_id->vendor && 8303 ipr_chip[i].device == dev_id->device) 8304 return &ipr_chip[i]; 8305 return NULL; 8306} 8307 8308/** 8309 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 8310 * @pdev: PCI device struct 8311 * 8312 * Description: Simply set the msi_received flag to 1 indicating that 8313 * Message Signaled Interrupts are supported. 8314 * 8315 * Return value: 8316 * 0 on success / non-zero on failure 8317 **/ 8318static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) 8319{ 8320 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 8321 unsigned long lock_flags = 0; 8322 irqreturn_t rc = IRQ_HANDLED; 8323 8324 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8325 8326 ioa_cfg->msi_received = 1; 8327 wake_up(&ioa_cfg->msi_wait_q); 8328 8329 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8330 return rc; 8331} 8332 8333/** 8334 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 8335 * @pdev: PCI device struct 8336 * 8337 * Description: The return value from pci_enable_msi() can not always be 8338 * trusted. This routine sets up and initiates a test interrupt to determine 8339 * if the interrupt is received via the ipr_test_intr() service routine. 8340 * If the tests fails, the driver will fall back to LSI. 8341 * 8342 * Return value: 8343 * 0 on success / non-zero on failure 8344 **/ 8345static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, 8346 struct pci_dev *pdev) 8347{ 8348 int rc; 8349 volatile u32 int_reg; 8350 unsigned long lock_flags = 0; 8351 8352 ENTER; 8353 8354 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8355 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8356 ioa_cfg->msi_received = 0; 8357 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8358 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 8359 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8360 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8361 8362 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 8363 if (rc) { 8364 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); 8365 return rc; 8366 } else if (ipr_debug) 8367 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); 8368 8369 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 8370 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8371 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 8372 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8373 8374 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8375 if (!ioa_cfg->msi_received) { 8376 /* MSI test failed */ 8377 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 8378 rc = -EOPNOTSUPP; 8379 } else if (ipr_debug) 8380 dev_info(&pdev->dev, "MSI test succeeded.\n"); 8381 8382 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8383 8384 free_irq(pdev->irq, ioa_cfg); 8385 8386 LEAVE; 8387 8388 return rc; 8389} 8390 8391/** 8392 * ipr_probe_ioa - Allocates memory and does first stage of initialization 8393 * @pdev: PCI device struct 8394 * @dev_id: PCI device id struct 8395 * 8396 * Return value: 8397 * 0 on success / non-zero on failure 8398 **/ 8399static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 8400 const struct pci_device_id *dev_id) 8401{ 8402 struct ipr_ioa_cfg *ioa_cfg; 8403 struct Scsi_Host *host; 8404 unsigned long ipr_regs_pci; 8405 void __iomem *ipr_regs; 8406 int rc = PCIBIOS_SUCCESSFUL; 8407 volatile u32 mask, uproc, interrupts; 8408 8409 ENTER; 8410 8411 if ((rc = pci_enable_device(pdev))) { 8412 dev_err(&pdev->dev, "Cannot enable adapter\n"); 8413 goto out; 8414 } 8415 8416 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 8417 8418 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 8419 8420 if (!host) { 8421 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 8422 rc = -ENOMEM; 8423 goto out_disable; 8424 } 8425 8426 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 8427 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 8428 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 8429 sata_port_info.flags, &ipr_sata_ops); 8430 8431 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 8432 8433 if (!ioa_cfg->ipr_chip) { 8434 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 8435 dev_id->vendor, dev_id->device); 8436 goto out_scsi_host_put; 8437 } 8438 8439 /* set SIS 32 or SIS 64 */ 8440 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 8441 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 8442 8443 if (ipr_transop_timeout) 8444 ioa_cfg->transop_timeout = ipr_transop_timeout; 8445 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 8446 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 8447 else 8448 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 8449 8450 ioa_cfg->revid = pdev->revision; 8451 8452 ipr_regs_pci = pci_resource_start(pdev, 0); 8453 8454 rc = pci_request_regions(pdev, IPR_NAME); 8455 if (rc < 0) { 8456 dev_err(&pdev->dev, 8457 "Couldn't register memory range of registers\n"); 8458 goto out_scsi_host_put; 8459 } 8460 8461 ipr_regs = pci_ioremap_bar(pdev, 0); 8462 8463 if (!ipr_regs) { 8464 dev_err(&pdev->dev, 8465 "Couldn't map memory range of registers\n"); 8466 rc = -ENOMEM; 8467 goto out_release_regions; 8468 } 8469 8470 ioa_cfg->hdw_dma_regs = ipr_regs; 8471 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 8472 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 8473 8474 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 8475 8476 pci_set_master(pdev); 8477 8478 if (ioa_cfg->sis64) { 8479 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 8480 if (rc < 0) { 8481 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); 8482 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8483 } 8484 8485 } else 8486 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8487 8488 if (rc < 0) { 8489 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 8490 goto cleanup_nomem; 8491 } 8492 8493 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 8494 ioa_cfg->chip_cfg->cache_line_size); 8495 8496 if (rc != PCIBIOS_SUCCESSFUL) { 8497 dev_err(&pdev->dev, "Write of cache line size failed\n"); 8498 rc = -EIO; 8499 goto cleanup_nomem; 8500 } 8501 8502 /* Enable MSI style interrupts if they are supported. */ 8503 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { 8504 rc = ipr_test_msi(ioa_cfg, pdev); 8505 if (rc == -EOPNOTSUPP) 8506 pci_disable_msi(pdev); 8507 else if (rc) 8508 goto out_msi_disable; 8509 else 8510 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); 8511 } else if (ipr_debug) 8512 dev_info(&pdev->dev, "Cannot enable MSI.\n"); 8513 8514 /* Save away PCI config space for use following IOA reset */ 8515 rc = pci_save_state(pdev); 8516 8517 if (rc != PCIBIOS_SUCCESSFUL) { 8518 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 8519 rc = -EIO; 8520 goto cleanup_nomem; 8521 } 8522 8523 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 8524 goto cleanup_nomem; 8525 8526 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 8527 goto cleanup_nomem; 8528 8529 if (ioa_cfg->sis64) 8530 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 8531 + ((sizeof(struct ipr_config_table_entry64) 8532 * ioa_cfg->max_devs_supported))); 8533 else 8534 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 8535 + ((sizeof(struct ipr_config_table_entry) 8536 * ioa_cfg->max_devs_supported))); 8537 8538 rc = ipr_alloc_mem(ioa_cfg); 8539 if (rc < 0) { 8540 dev_err(&pdev->dev, 8541 "Couldn't allocate enough memory for device driver!\n"); 8542 goto cleanup_nomem; 8543 } 8544 8545 /* 8546 * If HRRQ updated interrupt is not masked, or reset alert is set, 8547 * the card is in an unknown state and needs a hard reset 8548 */ 8549 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 8550 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 8551 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 8552 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 8553 ioa_cfg->needs_hard_reset = 1; 8554 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 8555 ioa_cfg->needs_hard_reset = 1; 8556 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 8557 ioa_cfg->ioa_unit_checked = 1; 8558 8559 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8560 rc = request_irq(pdev->irq, ipr_isr, 8561 ioa_cfg->msi_received ? 0 : IRQF_SHARED, 8562 IPR_NAME, ioa_cfg); 8563 8564 if (rc) { 8565 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 8566 pdev->irq, rc); 8567 goto cleanup_nolog; 8568 } 8569 8570 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 8571 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 8572 ioa_cfg->needs_warm_reset = 1; 8573 ioa_cfg->reset = ipr_reset_slot_reset; 8574 } else 8575 ioa_cfg->reset = ipr_reset_start_bist; 8576 8577 spin_lock(&ipr_driver_lock); 8578 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 8579 spin_unlock(&ipr_driver_lock); 8580 8581 LEAVE; 8582out: 8583 return rc; 8584 8585cleanup_nolog: 8586 ipr_free_mem(ioa_cfg); 8587cleanup_nomem: 8588 iounmap(ipr_regs); 8589out_msi_disable: 8590 pci_disable_msi(pdev); 8591out_release_regions: 8592 pci_release_regions(pdev); 8593out_scsi_host_put: 8594 scsi_host_put(host); 8595out_disable: 8596 pci_disable_device(pdev); 8597 goto out; 8598} 8599 8600/** 8601 * ipr_scan_vsets - Scans for VSET devices 8602 * @ioa_cfg: ioa config struct 8603 * 8604 * Description: Since the VSET resources do not follow SAM in that we can have 8605 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 8606 * 8607 * Return value: 8608 * none 8609 **/ 8610static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 8611{ 8612 int target, lun; 8613 8614 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 8615 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 8616 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 8617} 8618 8619/** 8620 * ipr_initiate_ioa_bringdown - Bring down an adapter 8621 * @ioa_cfg: ioa config struct 8622 * @shutdown_type: shutdown type 8623 * 8624 * Description: This function will initiate bringing down the adapter. 8625 * This consists of issuing an IOA shutdown to the adapter 8626 * to flush the cache, and running BIST. 8627 * If the caller needs to wait on the completion of the reset, 8628 * the caller must sleep on the reset_wait_q. 8629 * 8630 * Return value: 8631 * none 8632 **/ 8633static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 8634 enum ipr_shutdown_type shutdown_type) 8635{ 8636 ENTER; 8637 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8638 ioa_cfg->sdt_state = ABORT_DUMP; 8639 ioa_cfg->reset_retries = 0; 8640 ioa_cfg->in_ioa_bringdown = 1; 8641 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 8642 LEAVE; 8643} 8644 8645/** 8646 * __ipr_remove - Remove a single adapter 8647 * @pdev: pci device struct 8648 * 8649 * Adapter hot plug remove entry point. 8650 * 8651 * Return value: 8652 * none 8653 **/ 8654static void __ipr_remove(struct pci_dev *pdev) 8655{ 8656 unsigned long host_lock_flags = 0; 8657 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8658 ENTER; 8659 8660 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8661 while(ioa_cfg->in_reset_reload) { 8662 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8663 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8664 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8665 } 8666 8667 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8668 8669 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8670 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8671 flush_scheduled_work(); 8672 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8673 8674 spin_lock(&ipr_driver_lock); 8675 list_del(&ioa_cfg->queue); 8676 spin_unlock(&ipr_driver_lock); 8677 8678 if (ioa_cfg->sdt_state == ABORT_DUMP) 8679 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8681 8682 ipr_free_all_resources(ioa_cfg); 8683 8684 LEAVE; 8685} 8686 8687/** 8688 * ipr_remove - IOA hot plug remove entry point 8689 * @pdev: pci device struct 8690 * 8691 * Adapter hot plug remove entry point. 8692 * 8693 * Return value: 8694 * none 8695 **/ 8696static void __devexit ipr_remove(struct pci_dev *pdev) 8697{ 8698 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8699 8700 ENTER; 8701 8702 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8703 &ipr_trace_attr); 8704 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 8705 &ipr_dump_attr); 8706 scsi_remove_host(ioa_cfg->host); 8707 8708 __ipr_remove(pdev); 8709 8710 LEAVE; 8711} 8712 8713/** 8714 * ipr_probe - Adapter hot plug add entry point 8715 * 8716 * Return value: 8717 * 0 on success / non-zero on failure 8718 **/ 8719static int __devinit ipr_probe(struct pci_dev *pdev, 8720 const struct pci_device_id *dev_id) 8721{ 8722 struct ipr_ioa_cfg *ioa_cfg; 8723 int rc; 8724 8725 rc = ipr_probe_ioa(pdev, dev_id); 8726 8727 if (rc) 8728 return rc; 8729 8730 ioa_cfg = pci_get_drvdata(pdev); 8731 rc = ipr_probe_ioa_part2(ioa_cfg); 8732 8733 if (rc) { 8734 __ipr_remove(pdev); 8735 return rc; 8736 } 8737 8738 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 8739 8740 if (rc) { 8741 __ipr_remove(pdev); 8742 return rc; 8743 } 8744 8745 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 8746 &ipr_trace_attr); 8747 8748 if (rc) { 8749 scsi_remove_host(ioa_cfg->host); 8750 __ipr_remove(pdev); 8751 return rc; 8752 } 8753 8754 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 8755 &ipr_dump_attr); 8756 8757 if (rc) { 8758 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8759 &ipr_trace_attr); 8760 scsi_remove_host(ioa_cfg->host); 8761 __ipr_remove(pdev); 8762 return rc; 8763 } 8764 8765 scsi_scan_host(ioa_cfg->host); 8766 ipr_scan_vsets(ioa_cfg); 8767 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 8768 ioa_cfg->allow_ml_add_del = 1; 8769 ioa_cfg->host->max_channel = IPR_VSET_BUS; 8770 schedule_work(&ioa_cfg->work_q); 8771 return 0; 8772} 8773 8774/** 8775 * ipr_shutdown - Shutdown handler. 8776 * @pdev: pci device struct 8777 * 8778 * This function is invoked upon system shutdown/reboot. It will issue 8779 * an adapter shutdown to the adapter to flush the write cache. 8780 * 8781 * Return value: 8782 * none 8783 **/ 8784static void ipr_shutdown(struct pci_dev *pdev) 8785{ 8786 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8787 unsigned long lock_flags = 0; 8788 8789 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8790 while(ioa_cfg->in_reset_reload) { 8791 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8792 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8793 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8794 } 8795 8796 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8797 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8798 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8799} 8800 8801static struct pci_device_id ipr_pci_table[] __devinitdata = { 8802 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8803 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 8804 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8805 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 8806 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8807 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 8808 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8809 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 8810 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8811 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 8812 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8813 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 8814 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8815 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 8816 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 8818 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8819 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8820 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 8821 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8822 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 8823 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8824 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 8826 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 8829 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8830 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 8831 IPR_USE_LONG_TRANSOP_TIMEOUT}, 8832 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8833 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 8834 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8835 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 8837 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8838 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8839 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 8840 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8841 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 8842 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 8843 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 8844 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 8845 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8846 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 8847 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8848 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 8849 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8850 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8851 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 8852 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8853 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8854 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 8855 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8856 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 8857 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8858 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 8859 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8860 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 8861 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8862 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 8863 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8864 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 8865 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8866 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 }, 8867 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8868 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 8869 { } 8870}; 8871MODULE_DEVICE_TABLE(pci, ipr_pci_table); 8872 8873static struct pci_error_handlers ipr_err_handler = { 8874 .error_detected = ipr_pci_error_detected, 8875 .slot_reset = ipr_pci_slot_reset, 8876}; 8877 8878static struct pci_driver ipr_driver = { 8879 .name = IPR_NAME, 8880 .id_table = ipr_pci_table, 8881 .probe = ipr_probe, 8882 .remove = __devexit_p(ipr_remove), 8883 .shutdown = ipr_shutdown, 8884 .err_handler = &ipr_err_handler, 8885}; 8886 8887/** 8888 * ipr_halt_done - Shutdown prepare completion 8889 * 8890 * Return value: 8891 * none 8892 **/ 8893static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 8894{ 8895 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8896 8897 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8898} 8899 8900/** 8901 * ipr_halt - Issue shutdown prepare to all adapters 8902 * 8903 * Return value: 8904 * NOTIFY_OK on success / NOTIFY_DONE on failure 8905 **/ 8906static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 8907{ 8908 struct ipr_cmnd *ipr_cmd; 8909 struct ipr_ioa_cfg *ioa_cfg; 8910 unsigned long flags = 0; 8911 8912 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 8913 return NOTIFY_DONE; 8914 8915 spin_lock(&ipr_driver_lock); 8916 8917 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 8918 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8919 if (!ioa_cfg->allow_cmds) { 8920 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8921 continue; 8922 } 8923 8924 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 8925 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 8926 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 8927 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 8928 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 8929 8930 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 8931 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8932 } 8933 spin_unlock(&ipr_driver_lock); 8934 8935 return NOTIFY_OK; 8936} 8937 8938static struct notifier_block ipr_notifier = { 8939 ipr_halt, NULL, 0 8940}; 8941 8942/** 8943 * ipr_init - Module entry point 8944 * 8945 * Return value: 8946 * 0 on success / negative value on failure 8947 **/ 8948static int __init ipr_init(void) 8949{ 8950 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 8951 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 8952 8953 register_reboot_notifier(&ipr_notifier); 8954 return pci_register_driver(&ipr_driver); 8955} 8956 8957/** 8958 * ipr_exit - Module unload 8959 * 8960 * Module unload entry point. 8961 * 8962 * Return value: 8963 * none 8964 **/ 8965static void __exit ipr_exit(void) 8966{ 8967 unregister_reboot_notifier(&ipr_notifier); 8968 pci_unregister_driver(&ipr_driver); 8969} 8970 8971module_init(ipr_init); 8972module_exit(ipr_exit); 8973