ipr.c revision 96d21f00ab59c9f27fad191d12a2ccfeff3c9108
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->s.ioasa; 571 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 572 dma_addr_t dma_addr = ipr_cmd->dma_addr; 573 574 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 575 ioarcb->data_transfer_length = 0; 576 ioarcb->read_data_transfer_length = 0; 577 ioarcb->ioadl_len = 0; 578 ioarcb->read_ioadl_len = 0; 579 580 if (ipr_cmd->ioa_cfg->sis64) { 581 ioarcb->u.sis64_addr_data.data_ioadl_addr = 582 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 583 ioasa64->u.gata.status = 0; 584 } else { 585 ioarcb->write_ioadl_addr = 586 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 587 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 588 ioasa->u.gata.status = 0; 589 } 590 591 ioasa->hdr.ioasc = 0; 592 ioasa->hdr.residual_data_len = 0; 593 ipr_cmd->scsi_cmd = NULL; 594 ipr_cmd->qc = NULL; 595 ipr_cmd->sense_buffer[0] = 0; 596 ipr_cmd->dma_use_sg = 0; 597} 598 599/** 600 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 601 * @ipr_cmd: ipr command struct 602 * 603 * Return value: 604 * none 605 **/ 606static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 607{ 608 ipr_reinit_ipr_cmnd(ipr_cmd); 609 ipr_cmd->u.scratch = 0; 610 ipr_cmd->sibling = NULL; 611 init_timer(&ipr_cmd->timer); 612} 613 614/** 615 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 616 * @ioa_cfg: ioa config struct 617 * 618 * Return value: 619 * pointer to ipr command struct 620 **/ 621static 622struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 623{ 624 struct ipr_cmnd *ipr_cmd; 625 626 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 627 list_del(&ipr_cmd->queue); 628 ipr_init_ipr_cmnd(ipr_cmd); 629 630 return ipr_cmd; 631} 632 633/** 634 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 635 * @ioa_cfg: ioa config struct 636 * @clr_ints: interrupts to clear 637 * 638 * This function masks all interrupts on the adapter, then clears the 639 * interrupts specified in the mask 640 * 641 * Return value: 642 * none 643 **/ 644static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 645 u32 clr_ints) 646{ 647 volatile u32 int_reg; 648 649 /* Stop new interrupts */ 650 ioa_cfg->allow_interrupts = 0; 651 652 /* Set interrupt mask to stop all new interrupts */ 653 if (ioa_cfg->sis64) 654 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); 655 else 656 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 657 658 /* Clear any pending interrupts */ 659 if (ioa_cfg->sis64) 660 writel(~0, ioa_cfg->regs.clr_interrupt_reg); 661 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); 662 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 663} 664 665/** 666 * ipr_save_pcix_cmd_reg - Save PCI-X command register 667 * @ioa_cfg: ioa config struct 668 * 669 * Return value: 670 * 0 on success / -EIO on failure 671 **/ 672static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 673{ 674 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 675 676 if (pcix_cmd_reg == 0) 677 return 0; 678 679 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 680 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 681 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 682 return -EIO; 683 } 684 685 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 686 return 0; 687} 688 689/** 690 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 691 * @ioa_cfg: ioa config struct 692 * 693 * Return value: 694 * 0 on success / -EIO on failure 695 **/ 696static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 697{ 698 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 699 700 if (pcix_cmd_reg) { 701 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 702 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 703 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 704 return -EIO; 705 } 706 } 707 708 return 0; 709} 710 711/** 712 * ipr_sata_eh_done - done function for aborted SATA commands 713 * @ipr_cmd: ipr command struct 714 * 715 * This function is invoked for ops generated to SATA 716 * devices which are being aborted. 717 * 718 * Return value: 719 * none 720 **/ 721static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 722{ 723 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 724 struct ata_queued_cmd *qc = ipr_cmd->qc; 725 struct ipr_sata_port *sata_port = qc->ap->private_data; 726 727 qc->err_mask |= AC_ERR_OTHER; 728 sata_port->ioasa.status |= ATA_BUSY; 729 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 730 ata_qc_complete(qc); 731} 732 733/** 734 * ipr_scsi_eh_done - mid-layer done function for aborted ops 735 * @ipr_cmd: ipr command struct 736 * 737 * This function is invoked by the interrupt handler for 738 * ops generated by the SCSI mid-layer which are being aborted. 739 * 740 * Return value: 741 * none 742 **/ 743static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 744{ 745 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 746 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 747 748 scsi_cmd->result |= (DID_ERROR << 16); 749 750 scsi_dma_unmap(ipr_cmd->scsi_cmd); 751 scsi_cmd->scsi_done(scsi_cmd); 752 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 753} 754 755/** 756 * ipr_fail_all_ops - Fails all outstanding ops. 757 * @ioa_cfg: ioa config struct 758 * 759 * This function fails all outstanding ops. 760 * 761 * Return value: 762 * none 763 **/ 764static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 765{ 766 struct ipr_cmnd *ipr_cmd, *temp; 767 768 ENTER; 769 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 770 list_del(&ipr_cmd->queue); 771 772 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 773 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID); 774 775 if (ipr_cmd->scsi_cmd) 776 ipr_cmd->done = ipr_scsi_eh_done; 777 else if (ipr_cmd->qc) 778 ipr_cmd->done = ipr_sata_eh_done; 779 780 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 781 del_timer(&ipr_cmd->timer); 782 ipr_cmd->done(ipr_cmd); 783 } 784 785 LEAVE; 786} 787 788/** 789 * ipr_send_command - Send driver initiated requests. 790 * @ipr_cmd: ipr command struct 791 * 792 * This function sends a command to the adapter using the correct write call. 793 * In the case of sis64, calculate the ioarcb size required. Then or in the 794 * appropriate bits. 795 * 796 * Return value: 797 * none 798 **/ 799static void ipr_send_command(struct ipr_cmnd *ipr_cmd) 800{ 801 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 802 dma_addr_t send_dma_addr = ipr_cmd->dma_addr; 803 804 if (ioa_cfg->sis64) { 805 /* The default size is 256 bytes */ 806 send_dma_addr |= 0x1; 807 808 /* If the number of ioadls * size of ioadl > 128 bytes, 809 then use a 512 byte ioarcb */ 810 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) 811 send_dma_addr |= 0x4; 812 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 813 } else 814 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 815} 816 817/** 818 * ipr_do_req - Send driver initiated requests. 819 * @ipr_cmd: ipr command struct 820 * @done: done function 821 * @timeout_func: timeout function 822 * @timeout: timeout value 823 * 824 * This function sends the specified command to the adapter with the 825 * timeout given. The done function is invoked on command completion. 826 * 827 * Return value: 828 * none 829 **/ 830static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 831 void (*done) (struct ipr_cmnd *), 832 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 833{ 834 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 835 836 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 837 838 ipr_cmd->done = done; 839 840 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 841 ipr_cmd->timer.expires = jiffies + timeout; 842 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 843 844 add_timer(&ipr_cmd->timer); 845 846 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 847 848 mb(); 849 850 ipr_send_command(ipr_cmd); 851} 852 853/** 854 * ipr_internal_cmd_done - Op done function for an internally generated op. 855 * @ipr_cmd: ipr command struct 856 * 857 * This function is the op done function for an internally generated, 858 * blocking op. It simply wakes the sleeping thread. 859 * 860 * Return value: 861 * none 862 **/ 863static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 864{ 865 if (ipr_cmd->sibling) 866 ipr_cmd->sibling = NULL; 867 else 868 complete(&ipr_cmd->completion); 869} 870 871/** 872 * ipr_init_ioadl - initialize the ioadl for the correct SIS type 873 * @ipr_cmd: ipr command struct 874 * @dma_addr: dma address 875 * @len: transfer length 876 * @flags: ioadl flag value 877 * 878 * This function initializes an ioadl in the case where there is only a single 879 * descriptor. 880 * 881 * Return value: 882 * nothing 883 **/ 884static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, 885 u32 len, int flags) 886{ 887 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 888 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 889 890 ipr_cmd->dma_use_sg = 1; 891 892 if (ipr_cmd->ioa_cfg->sis64) { 893 ioadl64->flags = cpu_to_be32(flags); 894 ioadl64->data_len = cpu_to_be32(len); 895 ioadl64->address = cpu_to_be64(dma_addr); 896 897 ipr_cmd->ioarcb.ioadl_len = 898 cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); 899 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 900 } else { 901 ioadl->flags_and_data_len = cpu_to_be32(flags | len); 902 ioadl->address = cpu_to_be32(dma_addr); 903 904 if (flags == IPR_IOADL_FLAGS_READ_LAST) { 905 ipr_cmd->ioarcb.read_ioadl_len = 906 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 907 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); 908 } else { 909 ipr_cmd->ioarcb.ioadl_len = 910 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 911 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 912 } 913 } 914} 915 916/** 917 * ipr_send_blocking_cmd - Send command and sleep on its completion. 918 * @ipr_cmd: ipr command struct 919 * @timeout_func: function to invoke if command times out 920 * @timeout: timeout 921 * 922 * Return value: 923 * none 924 **/ 925static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 926 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 927 u32 timeout) 928{ 929 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 930 931 init_completion(&ipr_cmd->completion); 932 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 933 934 spin_unlock_irq(ioa_cfg->host->host_lock); 935 wait_for_completion(&ipr_cmd->completion); 936 spin_lock_irq(ioa_cfg->host->host_lock); 937} 938 939/** 940 * ipr_send_hcam - Send an HCAM to the adapter. 941 * @ioa_cfg: ioa config struct 942 * @type: HCAM type 943 * @hostrcb: hostrcb struct 944 * 945 * This function will send a Host Controlled Async command to the adapter. 946 * If HCAMs are currently not allowed to be issued to the adapter, it will 947 * place the hostrcb on the free queue. 948 * 949 * Return value: 950 * none 951 **/ 952static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 953 struct ipr_hostrcb *hostrcb) 954{ 955 struct ipr_cmnd *ipr_cmd; 956 struct ipr_ioarcb *ioarcb; 957 958 if (ioa_cfg->allow_cmds) { 959 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 960 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 961 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 962 963 ipr_cmd->u.hostrcb = hostrcb; 964 ioarcb = &ipr_cmd->ioarcb; 965 966 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 967 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 968 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 969 ioarcb->cmd_pkt.cdb[1] = type; 970 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 971 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 972 973 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, 974 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); 975 976 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 977 ipr_cmd->done = ipr_process_ccn; 978 else 979 ipr_cmd->done = ipr_process_error; 980 981 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 982 983 mb(); 984 985 ipr_send_command(ipr_cmd); 986 } else { 987 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 988 } 989} 990 991/** 992 * ipr_update_ata_class - Update the ata class in the resource entry 993 * @res: resource entry struct 994 * @proto: cfgte device bus protocol value 995 * 996 * Return value: 997 * none 998 **/ 999static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) 1000{ 1001 switch(proto) { 1002 case IPR_PROTO_SATA: 1003 case IPR_PROTO_SAS_STP: 1004 res->ata_class = ATA_DEV_ATA; 1005 break; 1006 case IPR_PROTO_SATA_ATAPI: 1007 case IPR_PROTO_SAS_STP_ATAPI: 1008 res->ata_class = ATA_DEV_ATAPI; 1009 break; 1010 default: 1011 res->ata_class = ATA_DEV_UNKNOWN; 1012 break; 1013 }; 1014} 1015 1016/** 1017 * ipr_init_res_entry - Initialize a resource entry struct. 1018 * @res: resource entry struct 1019 * @cfgtew: config table entry wrapper struct 1020 * 1021 * Return value: 1022 * none 1023 **/ 1024static void ipr_init_res_entry(struct ipr_resource_entry *res, 1025 struct ipr_config_table_entry_wrapper *cfgtew) 1026{ 1027 int found = 0; 1028 unsigned int proto; 1029 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1030 struct ipr_resource_entry *gscsi_res = NULL; 1031 1032 res->needs_sync_complete = 0; 1033 res->in_erp = 0; 1034 res->add_to_ml = 0; 1035 res->del_from_ml = 0; 1036 res->resetting_device = 0; 1037 res->sdev = NULL; 1038 res->sata_port = NULL; 1039 1040 if (ioa_cfg->sis64) { 1041 proto = cfgtew->u.cfgte64->proto; 1042 res->res_flags = cfgtew->u.cfgte64->res_flags; 1043 res->qmodel = IPR_QUEUEING_MODEL64(res); 1044 res->type = cfgtew->u.cfgte64->res_type; 1045 1046 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1047 sizeof(res->res_path)); 1048 1049 res->bus = 0; 1050 res->lun = scsilun_to_int(&res->dev_lun); 1051 1052 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1053 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { 1054 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { 1055 found = 1; 1056 res->target = gscsi_res->target; 1057 break; 1058 } 1059 } 1060 if (!found) { 1061 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1062 ioa_cfg->max_devs_supported); 1063 set_bit(res->target, ioa_cfg->target_ids); 1064 } 1065 1066 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1067 sizeof(res->dev_lun.scsi_lun)); 1068 } else if (res->type == IPR_RES_TYPE_IOAFP) { 1069 res->bus = IPR_IOAFP_VIRTUAL_BUS; 1070 res->target = 0; 1071 } else if (res->type == IPR_RES_TYPE_ARRAY) { 1072 res->bus = IPR_ARRAY_VIRTUAL_BUS; 1073 res->target = find_first_zero_bit(ioa_cfg->array_ids, 1074 ioa_cfg->max_devs_supported); 1075 set_bit(res->target, ioa_cfg->array_ids); 1076 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { 1077 res->bus = IPR_VSET_VIRTUAL_BUS; 1078 res->target = find_first_zero_bit(ioa_cfg->vset_ids, 1079 ioa_cfg->max_devs_supported); 1080 set_bit(res->target, ioa_cfg->vset_ids); 1081 } else { 1082 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1083 ioa_cfg->max_devs_supported); 1084 set_bit(res->target, ioa_cfg->target_ids); 1085 } 1086 } else { 1087 proto = cfgtew->u.cfgte->proto; 1088 res->qmodel = IPR_QUEUEING_MODEL(res); 1089 res->flags = cfgtew->u.cfgte->flags; 1090 if (res->flags & IPR_IS_IOA_RESOURCE) 1091 res->type = IPR_RES_TYPE_IOAFP; 1092 else 1093 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1094 1095 res->bus = cfgtew->u.cfgte->res_addr.bus; 1096 res->target = cfgtew->u.cfgte->res_addr.target; 1097 res->lun = cfgtew->u.cfgte->res_addr.lun; 1098 } 1099 1100 ipr_update_ata_class(res, proto); 1101} 1102 1103/** 1104 * ipr_is_same_device - Determine if two devices are the same. 1105 * @res: resource entry struct 1106 * @cfgtew: config table entry wrapper struct 1107 * 1108 * Return value: 1109 * 1 if the devices are the same / 0 otherwise 1110 **/ 1111static int ipr_is_same_device(struct ipr_resource_entry *res, 1112 struct ipr_config_table_entry_wrapper *cfgtew) 1113{ 1114 if (res->ioa_cfg->sis64) { 1115 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, 1116 sizeof(cfgtew->u.cfgte64->dev_id)) && 1117 !memcmp(&res->lun, &cfgtew->u.cfgte64->lun, 1118 sizeof(cfgtew->u.cfgte64->lun))) { 1119 return 1; 1120 } 1121 } else { 1122 if (res->bus == cfgtew->u.cfgte->res_addr.bus && 1123 res->target == cfgtew->u.cfgte->res_addr.target && 1124 res->lun == cfgtew->u.cfgte->res_addr.lun) 1125 return 1; 1126 } 1127 1128 return 0; 1129} 1130 1131/** 1132 * ipr_format_resource_path - Format the resource path for printing. 1133 * @res_path: resource path 1134 * @buf: buffer 1135 * 1136 * Return value: 1137 * pointer to buffer 1138 **/ 1139static char *ipr_format_resource_path(u8 *res_path, char *buffer) 1140{ 1141 int i; 1142 1143 sprintf(buffer, "%02X", res_path[0]); 1144 for (i=1; res_path[i] != 0xff; i++) 1145 sprintf(buffer, "%s-%02X", buffer, res_path[i]); 1146 1147 return buffer; 1148} 1149 1150/** 1151 * ipr_update_res_entry - Update the resource entry. 1152 * @res: resource entry struct 1153 * @cfgtew: config table entry wrapper struct 1154 * 1155 * Return value: 1156 * none 1157 **/ 1158static void ipr_update_res_entry(struct ipr_resource_entry *res, 1159 struct ipr_config_table_entry_wrapper *cfgtew) 1160{ 1161 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1162 unsigned int proto; 1163 int new_path = 0; 1164 1165 if (res->ioa_cfg->sis64) { 1166 res->flags = cfgtew->u.cfgte64->flags; 1167 res->res_flags = cfgtew->u.cfgte64->res_flags; 1168 res->type = cfgtew->u.cfgte64->res_type & 0x0f; 1169 1170 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, 1171 sizeof(struct ipr_std_inq_data)); 1172 1173 res->qmodel = IPR_QUEUEING_MODEL64(res); 1174 proto = cfgtew->u.cfgte64->proto; 1175 res->res_handle = cfgtew->u.cfgte64->res_handle; 1176 res->dev_id = cfgtew->u.cfgte64->dev_id; 1177 1178 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1179 sizeof(res->dev_lun.scsi_lun)); 1180 1181 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, 1182 sizeof(res->res_path))) { 1183 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1184 sizeof(res->res_path)); 1185 new_path = 1; 1186 } 1187 1188 if (res->sdev && new_path) 1189 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", 1190 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 1191 } else { 1192 res->flags = cfgtew->u.cfgte->flags; 1193 if (res->flags & IPR_IS_IOA_RESOURCE) 1194 res->type = IPR_RES_TYPE_IOAFP; 1195 else 1196 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1197 1198 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, 1199 sizeof(struct ipr_std_inq_data)); 1200 1201 res->qmodel = IPR_QUEUEING_MODEL(res); 1202 proto = cfgtew->u.cfgte->proto; 1203 res->res_handle = cfgtew->u.cfgte->res_handle; 1204 } 1205 1206 ipr_update_ata_class(res, proto); 1207} 1208 1209/** 1210 * ipr_clear_res_target - Clear the bit in the bit map representing the target 1211 * for the resource. 1212 * @res: resource entry struct 1213 * @cfgtew: config table entry wrapper struct 1214 * 1215 * Return value: 1216 * none 1217 **/ 1218static void ipr_clear_res_target(struct ipr_resource_entry *res) 1219{ 1220 struct ipr_resource_entry *gscsi_res = NULL; 1221 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1222 1223 if (!ioa_cfg->sis64) 1224 return; 1225 1226 if (res->bus == IPR_ARRAY_VIRTUAL_BUS) 1227 clear_bit(res->target, ioa_cfg->array_ids); 1228 else if (res->bus == IPR_VSET_VIRTUAL_BUS) 1229 clear_bit(res->target, ioa_cfg->vset_ids); 1230 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1231 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) 1232 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) 1233 return; 1234 clear_bit(res->target, ioa_cfg->target_ids); 1235 1236 } else if (res->bus == 0) 1237 clear_bit(res->target, ioa_cfg->target_ids); 1238} 1239 1240/** 1241 * ipr_handle_config_change - Handle a config change from the adapter 1242 * @ioa_cfg: ioa config struct 1243 * @hostrcb: hostrcb 1244 * 1245 * Return value: 1246 * none 1247 **/ 1248static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 1249 struct ipr_hostrcb *hostrcb) 1250{ 1251 struct ipr_resource_entry *res = NULL; 1252 struct ipr_config_table_entry_wrapper cfgtew; 1253 __be32 cc_res_handle; 1254 1255 u32 is_ndn = 1; 1256 1257 if (ioa_cfg->sis64) { 1258 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; 1259 cc_res_handle = cfgtew.u.cfgte64->res_handle; 1260 } else { 1261 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; 1262 cc_res_handle = cfgtew.u.cfgte->res_handle; 1263 } 1264 1265 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1266 if (res->res_handle == cc_res_handle) { 1267 is_ndn = 0; 1268 break; 1269 } 1270 } 1271 1272 if (is_ndn) { 1273 if (list_empty(&ioa_cfg->free_res_q)) { 1274 ipr_send_hcam(ioa_cfg, 1275 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 1276 hostrcb); 1277 return; 1278 } 1279 1280 res = list_entry(ioa_cfg->free_res_q.next, 1281 struct ipr_resource_entry, queue); 1282 1283 list_del(&res->queue); 1284 ipr_init_res_entry(res, &cfgtew); 1285 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 1286 } 1287 1288 ipr_update_res_entry(res, &cfgtew); 1289 1290 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 1291 if (res->sdev) { 1292 res->del_from_ml = 1; 1293 res->res_handle = IPR_INVALID_RES_HANDLE; 1294 if (ioa_cfg->allow_ml_add_del) 1295 schedule_work(&ioa_cfg->work_q); 1296 } else { 1297 ipr_clear_res_target(res); 1298 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 1299 } 1300 } else if (!res->sdev) { 1301 res->add_to_ml = 1; 1302 if (ioa_cfg->allow_ml_add_del) 1303 schedule_work(&ioa_cfg->work_q); 1304 } 1305 1306 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1307} 1308 1309/** 1310 * ipr_process_ccn - Op done function for a CCN. 1311 * @ipr_cmd: ipr command struct 1312 * 1313 * This function is the op done function for a configuration 1314 * change notification host controlled async from the adapter. 1315 * 1316 * Return value: 1317 * none 1318 **/ 1319static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 1320{ 1321 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1322 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1323 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 1324 1325 list_del(&hostrcb->queue); 1326 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1327 1328 if (ioasc) { 1329 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 1330 dev_err(&ioa_cfg->pdev->dev, 1331 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1332 1333 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1334 } else { 1335 ipr_handle_config_change(ioa_cfg, hostrcb); 1336 } 1337} 1338 1339/** 1340 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 1341 * @i: index into buffer 1342 * @buf: string to modify 1343 * 1344 * This function will strip all trailing whitespace, pad the end 1345 * of the string with a single space, and NULL terminate the string. 1346 * 1347 * Return value: 1348 * new length of string 1349 **/ 1350static int strip_and_pad_whitespace(int i, char *buf) 1351{ 1352 while (i && buf[i] == ' ') 1353 i--; 1354 buf[i+1] = ' '; 1355 buf[i+2] = '\0'; 1356 return i + 2; 1357} 1358 1359/** 1360 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 1361 * @prefix: string to print at start of printk 1362 * @hostrcb: hostrcb pointer 1363 * @vpd: vendor/product id/sn struct 1364 * 1365 * Return value: 1366 * none 1367 **/ 1368static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1369 struct ipr_vpd *vpd) 1370{ 1371 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 1372 int i = 0; 1373 1374 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1375 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 1376 1377 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 1378 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 1379 1380 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1381 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1382 1383 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1384} 1385 1386/** 1387 * ipr_log_vpd - Log the passed VPD to the error log. 1388 * @vpd: vendor/product id/sn struct 1389 * 1390 * Return value: 1391 * none 1392 **/ 1393static void ipr_log_vpd(struct ipr_vpd *vpd) 1394{ 1395 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1396 + IPR_SERIAL_NUM_LEN]; 1397 1398 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1399 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1400 IPR_PROD_ID_LEN); 1401 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1402 ipr_err("Vendor/Product ID: %s\n", buffer); 1403 1404 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1405 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1406 ipr_err(" Serial Number: %s\n", buffer); 1407} 1408 1409/** 1410 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1411 * @prefix: string to print at start of printk 1412 * @hostrcb: hostrcb pointer 1413 * @vpd: vendor/product id/sn/wwn struct 1414 * 1415 * Return value: 1416 * none 1417 **/ 1418static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1419 struct ipr_ext_vpd *vpd) 1420{ 1421 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1422 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1423 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1424} 1425 1426/** 1427 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1428 * @vpd: vendor/product id/sn/wwn struct 1429 * 1430 * Return value: 1431 * none 1432 **/ 1433static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1434{ 1435 ipr_log_vpd(&vpd->vpd); 1436 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1437 be32_to_cpu(vpd->wwid[1])); 1438} 1439 1440/** 1441 * ipr_log_enhanced_cache_error - Log a cache error. 1442 * @ioa_cfg: ioa config struct 1443 * @hostrcb: hostrcb struct 1444 * 1445 * Return value: 1446 * none 1447 **/ 1448static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1449 struct ipr_hostrcb *hostrcb) 1450{ 1451 struct ipr_hostrcb_type_12_error *error; 1452 1453 if (ioa_cfg->sis64) 1454 error = &hostrcb->hcam.u.error64.u.type_12_error; 1455 else 1456 error = &hostrcb->hcam.u.error.u.type_12_error; 1457 1458 ipr_err("-----Current Configuration-----\n"); 1459 ipr_err("Cache Directory Card Information:\n"); 1460 ipr_log_ext_vpd(&error->ioa_vpd); 1461 ipr_err("Adapter Card Information:\n"); 1462 ipr_log_ext_vpd(&error->cfc_vpd); 1463 1464 ipr_err("-----Expected Configuration-----\n"); 1465 ipr_err("Cache Directory Card Information:\n"); 1466 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1467 ipr_err("Adapter Card Information:\n"); 1468 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1469 1470 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1471 be32_to_cpu(error->ioa_data[0]), 1472 be32_to_cpu(error->ioa_data[1]), 1473 be32_to_cpu(error->ioa_data[2])); 1474} 1475 1476/** 1477 * ipr_log_cache_error - Log a cache error. 1478 * @ioa_cfg: ioa config struct 1479 * @hostrcb: hostrcb struct 1480 * 1481 * Return value: 1482 * none 1483 **/ 1484static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1485 struct ipr_hostrcb *hostrcb) 1486{ 1487 struct ipr_hostrcb_type_02_error *error = 1488 &hostrcb->hcam.u.error.u.type_02_error; 1489 1490 ipr_err("-----Current Configuration-----\n"); 1491 ipr_err("Cache Directory Card Information:\n"); 1492 ipr_log_vpd(&error->ioa_vpd); 1493 ipr_err("Adapter Card Information:\n"); 1494 ipr_log_vpd(&error->cfc_vpd); 1495 1496 ipr_err("-----Expected Configuration-----\n"); 1497 ipr_err("Cache Directory Card Information:\n"); 1498 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1499 ipr_err("Adapter Card Information:\n"); 1500 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1501 1502 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1503 be32_to_cpu(error->ioa_data[0]), 1504 be32_to_cpu(error->ioa_data[1]), 1505 be32_to_cpu(error->ioa_data[2])); 1506} 1507 1508/** 1509 * ipr_log_enhanced_config_error - Log a configuration error. 1510 * @ioa_cfg: ioa config struct 1511 * @hostrcb: hostrcb struct 1512 * 1513 * Return value: 1514 * none 1515 **/ 1516static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1517 struct ipr_hostrcb *hostrcb) 1518{ 1519 int errors_logged, i; 1520 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1521 struct ipr_hostrcb_type_13_error *error; 1522 1523 error = &hostrcb->hcam.u.error.u.type_13_error; 1524 errors_logged = be32_to_cpu(error->errors_logged); 1525 1526 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1527 be32_to_cpu(error->errors_detected), errors_logged); 1528 1529 dev_entry = error->dev; 1530 1531 for (i = 0; i < errors_logged; i++, dev_entry++) { 1532 ipr_err_separator; 1533 1534 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1535 ipr_log_ext_vpd(&dev_entry->vpd); 1536 1537 ipr_err("-----New Device Information-----\n"); 1538 ipr_log_ext_vpd(&dev_entry->new_vpd); 1539 1540 ipr_err("Cache Directory Card Information:\n"); 1541 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1542 1543 ipr_err("Adapter Card Information:\n"); 1544 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1545 } 1546} 1547 1548/** 1549 * ipr_log_sis64_config_error - Log a device error. 1550 * @ioa_cfg: ioa config struct 1551 * @hostrcb: hostrcb struct 1552 * 1553 * Return value: 1554 * none 1555 **/ 1556static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, 1557 struct ipr_hostrcb *hostrcb) 1558{ 1559 int errors_logged, i; 1560 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; 1561 struct ipr_hostrcb_type_23_error *error; 1562 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1563 1564 error = &hostrcb->hcam.u.error64.u.type_23_error; 1565 errors_logged = be32_to_cpu(error->errors_logged); 1566 1567 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1568 be32_to_cpu(error->errors_detected), errors_logged); 1569 1570 dev_entry = error->dev; 1571 1572 for (i = 0; i < errors_logged; i++, dev_entry++) { 1573 ipr_err_separator; 1574 1575 ipr_err("Device %d : %s", i + 1, 1576 ipr_format_resource_path(&dev_entry->res_path[0], &buffer[0])); 1577 ipr_log_ext_vpd(&dev_entry->vpd); 1578 1579 ipr_err("-----New Device Information-----\n"); 1580 ipr_log_ext_vpd(&dev_entry->new_vpd); 1581 1582 ipr_err("Cache Directory Card Information:\n"); 1583 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1584 1585 ipr_err("Adapter Card Information:\n"); 1586 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1587 } 1588} 1589 1590/** 1591 * ipr_log_config_error - Log a configuration error. 1592 * @ioa_cfg: ioa config struct 1593 * @hostrcb: hostrcb struct 1594 * 1595 * Return value: 1596 * none 1597 **/ 1598static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1599 struct ipr_hostrcb *hostrcb) 1600{ 1601 int errors_logged, i; 1602 struct ipr_hostrcb_device_data_entry *dev_entry; 1603 struct ipr_hostrcb_type_03_error *error; 1604 1605 error = &hostrcb->hcam.u.error.u.type_03_error; 1606 errors_logged = be32_to_cpu(error->errors_logged); 1607 1608 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1609 be32_to_cpu(error->errors_detected), errors_logged); 1610 1611 dev_entry = error->dev; 1612 1613 for (i = 0; i < errors_logged; i++, dev_entry++) { 1614 ipr_err_separator; 1615 1616 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1617 ipr_log_vpd(&dev_entry->vpd); 1618 1619 ipr_err("-----New Device Information-----\n"); 1620 ipr_log_vpd(&dev_entry->new_vpd); 1621 1622 ipr_err("Cache Directory Card Information:\n"); 1623 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1624 1625 ipr_err("Adapter Card Information:\n"); 1626 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1627 1628 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1629 be32_to_cpu(dev_entry->ioa_data[0]), 1630 be32_to_cpu(dev_entry->ioa_data[1]), 1631 be32_to_cpu(dev_entry->ioa_data[2]), 1632 be32_to_cpu(dev_entry->ioa_data[3]), 1633 be32_to_cpu(dev_entry->ioa_data[4])); 1634 } 1635} 1636 1637/** 1638 * ipr_log_enhanced_array_error - Log an array configuration error. 1639 * @ioa_cfg: ioa config struct 1640 * @hostrcb: hostrcb struct 1641 * 1642 * Return value: 1643 * none 1644 **/ 1645static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1646 struct ipr_hostrcb *hostrcb) 1647{ 1648 int i, num_entries; 1649 struct ipr_hostrcb_type_14_error *error; 1650 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1651 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1652 1653 error = &hostrcb->hcam.u.error.u.type_14_error; 1654 1655 ipr_err_separator; 1656 1657 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1658 error->protection_level, 1659 ioa_cfg->host->host_no, 1660 error->last_func_vset_res_addr.bus, 1661 error->last_func_vset_res_addr.target, 1662 error->last_func_vset_res_addr.lun); 1663 1664 ipr_err_separator; 1665 1666 array_entry = error->array_member; 1667 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1668 sizeof(error->array_member)); 1669 1670 for (i = 0; i < num_entries; i++, array_entry++) { 1671 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1672 continue; 1673 1674 if (be32_to_cpu(error->exposed_mode_adn) == i) 1675 ipr_err("Exposed Array Member %d:\n", i); 1676 else 1677 ipr_err("Array Member %d:\n", i); 1678 1679 ipr_log_ext_vpd(&array_entry->vpd); 1680 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1681 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1682 "Expected Location"); 1683 1684 ipr_err_separator; 1685 } 1686} 1687 1688/** 1689 * ipr_log_array_error - Log an array configuration error. 1690 * @ioa_cfg: ioa config struct 1691 * @hostrcb: hostrcb struct 1692 * 1693 * Return value: 1694 * none 1695 **/ 1696static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1697 struct ipr_hostrcb *hostrcb) 1698{ 1699 int i; 1700 struct ipr_hostrcb_type_04_error *error; 1701 struct ipr_hostrcb_array_data_entry *array_entry; 1702 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1703 1704 error = &hostrcb->hcam.u.error.u.type_04_error; 1705 1706 ipr_err_separator; 1707 1708 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1709 error->protection_level, 1710 ioa_cfg->host->host_no, 1711 error->last_func_vset_res_addr.bus, 1712 error->last_func_vset_res_addr.target, 1713 error->last_func_vset_res_addr.lun); 1714 1715 ipr_err_separator; 1716 1717 array_entry = error->array_member; 1718 1719 for (i = 0; i < 18; i++) { 1720 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1721 continue; 1722 1723 if (be32_to_cpu(error->exposed_mode_adn) == i) 1724 ipr_err("Exposed Array Member %d:\n", i); 1725 else 1726 ipr_err("Array Member %d:\n", i); 1727 1728 ipr_log_vpd(&array_entry->vpd); 1729 1730 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1731 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1732 "Expected Location"); 1733 1734 ipr_err_separator; 1735 1736 if (i == 9) 1737 array_entry = error->array_member2; 1738 else 1739 array_entry++; 1740 } 1741} 1742 1743/** 1744 * ipr_log_hex_data - Log additional hex IOA error data. 1745 * @ioa_cfg: ioa config struct 1746 * @data: IOA error data 1747 * @len: data length 1748 * 1749 * Return value: 1750 * none 1751 **/ 1752static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1753{ 1754 int i; 1755 1756 if (len == 0) 1757 return; 1758 1759 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1760 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1761 1762 for (i = 0; i < len / 4; i += 4) { 1763 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1764 be32_to_cpu(data[i]), 1765 be32_to_cpu(data[i+1]), 1766 be32_to_cpu(data[i+2]), 1767 be32_to_cpu(data[i+3])); 1768 } 1769} 1770 1771/** 1772 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1773 * @ioa_cfg: ioa config struct 1774 * @hostrcb: hostrcb struct 1775 * 1776 * Return value: 1777 * none 1778 **/ 1779static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1780 struct ipr_hostrcb *hostrcb) 1781{ 1782 struct ipr_hostrcb_type_17_error *error; 1783 1784 if (ioa_cfg->sis64) 1785 error = &hostrcb->hcam.u.error64.u.type_17_error; 1786 else 1787 error = &hostrcb->hcam.u.error.u.type_17_error; 1788 1789 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1790 strim(error->failure_reason); 1791 1792 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1793 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1794 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1795 ipr_log_hex_data(ioa_cfg, error->data, 1796 be32_to_cpu(hostrcb->hcam.length) - 1797 (offsetof(struct ipr_hostrcb_error, u) + 1798 offsetof(struct ipr_hostrcb_type_17_error, data))); 1799} 1800 1801/** 1802 * ipr_log_dual_ioa_error - Log a dual adapter error. 1803 * @ioa_cfg: ioa config struct 1804 * @hostrcb: hostrcb struct 1805 * 1806 * Return value: 1807 * none 1808 **/ 1809static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1810 struct ipr_hostrcb *hostrcb) 1811{ 1812 struct ipr_hostrcb_type_07_error *error; 1813 1814 error = &hostrcb->hcam.u.error.u.type_07_error; 1815 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1816 strim(error->failure_reason); 1817 1818 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1819 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1820 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1821 ipr_log_hex_data(ioa_cfg, error->data, 1822 be32_to_cpu(hostrcb->hcam.length) - 1823 (offsetof(struct ipr_hostrcb_error, u) + 1824 offsetof(struct ipr_hostrcb_type_07_error, data))); 1825} 1826 1827static const struct { 1828 u8 active; 1829 char *desc; 1830} path_active_desc[] = { 1831 { IPR_PATH_NO_INFO, "Path" }, 1832 { IPR_PATH_ACTIVE, "Active path" }, 1833 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1834}; 1835 1836static const struct { 1837 u8 state; 1838 char *desc; 1839} path_state_desc[] = { 1840 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1841 { IPR_PATH_HEALTHY, "is healthy" }, 1842 { IPR_PATH_DEGRADED, "is degraded" }, 1843 { IPR_PATH_FAILED, "is failed" } 1844}; 1845 1846/** 1847 * ipr_log_fabric_path - Log a fabric path error 1848 * @hostrcb: hostrcb struct 1849 * @fabric: fabric descriptor 1850 * 1851 * Return value: 1852 * none 1853 **/ 1854static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1855 struct ipr_hostrcb_fabric_desc *fabric) 1856{ 1857 int i, j; 1858 u8 path_state = fabric->path_state; 1859 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1860 u8 state = path_state & IPR_PATH_STATE_MASK; 1861 1862 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1863 if (path_active_desc[i].active != active) 1864 continue; 1865 1866 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1867 if (path_state_desc[j].state != state) 1868 continue; 1869 1870 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1871 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1872 path_active_desc[i].desc, path_state_desc[j].desc, 1873 fabric->ioa_port); 1874 } else if (fabric->cascaded_expander == 0xff) { 1875 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1876 path_active_desc[i].desc, path_state_desc[j].desc, 1877 fabric->ioa_port, fabric->phy); 1878 } else if (fabric->phy == 0xff) { 1879 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1880 path_active_desc[i].desc, path_state_desc[j].desc, 1881 fabric->ioa_port, fabric->cascaded_expander); 1882 } else { 1883 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1884 path_active_desc[i].desc, path_state_desc[j].desc, 1885 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1886 } 1887 return; 1888 } 1889 } 1890 1891 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1892 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1893} 1894 1895/** 1896 * ipr_log64_fabric_path - Log a fabric path error 1897 * @hostrcb: hostrcb struct 1898 * @fabric: fabric descriptor 1899 * 1900 * Return value: 1901 * none 1902 **/ 1903static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, 1904 struct ipr_hostrcb64_fabric_desc *fabric) 1905{ 1906 int i, j; 1907 u8 path_state = fabric->path_state; 1908 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1909 u8 state = path_state & IPR_PATH_STATE_MASK; 1910 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1911 1912 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1913 if (path_active_desc[i].active != active) 1914 continue; 1915 1916 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1917 if (path_state_desc[j].state != state) 1918 continue; 1919 1920 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", 1921 path_active_desc[i].desc, path_state_desc[j].desc, 1922 ipr_format_resource_path(&fabric->res_path[0], &buffer[0])); 1923 return; 1924 } 1925 } 1926 1927 ipr_err("Path state=%02X Resource Path=%s\n", path_state, 1928 ipr_format_resource_path(&fabric->res_path[0], &buffer[0])); 1929} 1930 1931static const struct { 1932 u8 type; 1933 char *desc; 1934} path_type_desc[] = { 1935 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1936 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1937 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1938 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1939}; 1940 1941static const struct { 1942 u8 status; 1943 char *desc; 1944} path_status_desc[] = { 1945 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1946 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1947 { IPR_PATH_CFG_FAILED, "Failed" }, 1948 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1949 { IPR_PATH_NOT_DETECTED, "Missing" }, 1950 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1951}; 1952 1953static const char *link_rate[] = { 1954 "unknown", 1955 "disabled", 1956 "phy reset problem", 1957 "spinup hold", 1958 "port selector", 1959 "unknown", 1960 "unknown", 1961 "unknown", 1962 "1.5Gbps", 1963 "3.0Gbps", 1964 "unknown", 1965 "unknown", 1966 "unknown", 1967 "unknown", 1968 "unknown", 1969 "unknown" 1970}; 1971 1972/** 1973 * ipr_log_path_elem - Log a fabric path element. 1974 * @hostrcb: hostrcb struct 1975 * @cfg: fabric path element struct 1976 * 1977 * Return value: 1978 * none 1979 **/ 1980static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1981 struct ipr_hostrcb_config_element *cfg) 1982{ 1983 int i, j; 1984 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1985 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1986 1987 if (type == IPR_PATH_CFG_NOT_EXIST) 1988 return; 1989 1990 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1991 if (path_type_desc[i].type != type) 1992 continue; 1993 1994 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 1995 if (path_status_desc[j].status != status) 1996 continue; 1997 1998 if (type == IPR_PATH_CFG_IOA_PORT) { 1999 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 2000 path_status_desc[j].desc, path_type_desc[i].desc, 2001 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2002 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2003 } else { 2004 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 2005 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 2006 path_status_desc[j].desc, path_type_desc[i].desc, 2007 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2009 } else if (cfg->cascaded_expander == 0xff) { 2010 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 2011 "WWN=%08X%08X\n", path_status_desc[j].desc, 2012 path_type_desc[i].desc, cfg->phy, 2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2015 } else if (cfg->phy == 0xff) { 2016 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 2017 "WWN=%08X%08X\n", path_status_desc[j].desc, 2018 path_type_desc[i].desc, cfg->cascaded_expander, 2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2021 } else { 2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 2023 "WWN=%08X%08X\n", path_status_desc[j].desc, 2024 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2027 } 2028 } 2029 return; 2030 } 2031 } 2032 2033 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 2034 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 2035 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2036 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2037} 2038 2039/** 2040 * ipr_log64_path_elem - Log a fabric path element. 2041 * @hostrcb: hostrcb struct 2042 * @cfg: fabric path element struct 2043 * 2044 * Return value: 2045 * none 2046 **/ 2047static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, 2048 struct ipr_hostrcb64_config_element *cfg) 2049{ 2050 int i, j; 2051 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; 2052 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2053 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2054 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2055 2056 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) 2057 return; 2058 2059 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2060 if (path_type_desc[i].type != type) 2061 continue; 2062 2063 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2064 if (path_status_desc[j].status != status) 2065 continue; 2066 2067 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", 2068 path_status_desc[j].desc, path_type_desc[i].desc, 2069 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]), 2070 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2071 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2072 return; 2073 } 2074 } 2075 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " 2076 "WWN=%08X%08X\n", cfg->type_status, 2077 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]), 2078 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2079 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2080} 2081 2082/** 2083 * ipr_log_fabric_error - Log a fabric error. 2084 * @ioa_cfg: ioa config struct 2085 * @hostrcb: hostrcb struct 2086 * 2087 * Return value: 2088 * none 2089 **/ 2090static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2091 struct ipr_hostrcb *hostrcb) 2092{ 2093 struct ipr_hostrcb_type_20_error *error; 2094 struct ipr_hostrcb_fabric_desc *fabric; 2095 struct ipr_hostrcb_config_element *cfg; 2096 int i, add_len; 2097 2098 error = &hostrcb->hcam.u.error.u.type_20_error; 2099 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2100 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2101 2102 add_len = be32_to_cpu(hostrcb->hcam.length) - 2103 (offsetof(struct ipr_hostrcb_error, u) + 2104 offsetof(struct ipr_hostrcb_type_20_error, desc)); 2105 2106 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2107 ipr_log_fabric_path(hostrcb, fabric); 2108 for_each_fabric_cfg(fabric, cfg) 2109 ipr_log_path_elem(hostrcb, cfg); 2110 2111 add_len -= be16_to_cpu(fabric->length); 2112 fabric = (struct ipr_hostrcb_fabric_desc *) 2113 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2114 } 2115 2116 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2117} 2118 2119/** 2120 * ipr_log_sis64_array_error - Log a sis64 array error. 2121 * @ioa_cfg: ioa config struct 2122 * @hostrcb: hostrcb struct 2123 * 2124 * Return value: 2125 * none 2126 **/ 2127static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, 2128 struct ipr_hostrcb *hostrcb) 2129{ 2130 int i, num_entries; 2131 struct ipr_hostrcb_type_24_error *error; 2132 struct ipr_hostrcb64_array_data_entry *array_entry; 2133 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2134 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 2135 2136 error = &hostrcb->hcam.u.error64.u.type_24_error; 2137 2138 ipr_err_separator; 2139 2140 ipr_err("RAID %s Array Configuration: %s\n", 2141 error->protection_level, 2142 ipr_format_resource_path(&error->last_res_path[0], &buffer[0])); 2143 2144 ipr_err_separator; 2145 2146 array_entry = error->array_member; 2147 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 2148 sizeof(error->array_member)); 2149 2150 for (i = 0; i < num_entries; i++, array_entry++) { 2151 2152 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 2153 continue; 2154 2155 if (error->exposed_mode_adn == i) 2156 ipr_err("Exposed Array Member %d:\n", i); 2157 else 2158 ipr_err("Array Member %d:\n", i); 2159 2160 ipr_err("Array Member %d:\n", i); 2161 ipr_log_ext_vpd(&array_entry->vpd); 2162 ipr_err("Current Location: %s", 2163 ipr_format_resource_path(&array_entry->res_path[0], &buffer[0])); 2164 ipr_err("Expected Location: %s", 2165 ipr_format_resource_path(&array_entry->expected_res_path[0], &buffer[0])); 2166 2167 ipr_err_separator; 2168 } 2169} 2170 2171/** 2172 * ipr_log_sis64_fabric_error - Log a sis64 fabric error. 2173 * @ioa_cfg: ioa config struct 2174 * @hostrcb: hostrcb struct 2175 * 2176 * Return value: 2177 * none 2178 **/ 2179static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2180 struct ipr_hostrcb *hostrcb) 2181{ 2182 struct ipr_hostrcb_type_30_error *error; 2183 struct ipr_hostrcb64_fabric_desc *fabric; 2184 struct ipr_hostrcb64_config_element *cfg; 2185 int i, add_len; 2186 2187 error = &hostrcb->hcam.u.error64.u.type_30_error; 2188 2189 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2190 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2191 2192 add_len = be32_to_cpu(hostrcb->hcam.length) - 2193 (offsetof(struct ipr_hostrcb64_error, u) + 2194 offsetof(struct ipr_hostrcb_type_30_error, desc)); 2195 2196 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2197 ipr_log64_fabric_path(hostrcb, fabric); 2198 for_each_fabric_cfg(fabric, cfg) 2199 ipr_log64_path_elem(hostrcb, cfg); 2200 2201 add_len -= be16_to_cpu(fabric->length); 2202 fabric = (struct ipr_hostrcb64_fabric_desc *) 2203 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2204 } 2205 2206 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2207} 2208 2209/** 2210 * ipr_log_generic_error - Log an adapter error. 2211 * @ioa_cfg: ioa config struct 2212 * @hostrcb: hostrcb struct 2213 * 2214 * Return value: 2215 * none 2216 **/ 2217static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 2218 struct ipr_hostrcb *hostrcb) 2219{ 2220 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 2221 be32_to_cpu(hostrcb->hcam.length)); 2222} 2223 2224/** 2225 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 2226 * @ioasc: IOASC 2227 * 2228 * This function will return the index of into the ipr_error_table 2229 * for the specified IOASC. If the IOASC is not in the table, 2230 * 0 will be returned, which points to the entry used for unknown errors. 2231 * 2232 * Return value: 2233 * index into the ipr_error_table 2234 **/ 2235static u32 ipr_get_error(u32 ioasc) 2236{ 2237 int i; 2238 2239 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 2240 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 2241 return i; 2242 2243 return 0; 2244} 2245 2246/** 2247 * ipr_handle_log_data - Log an adapter error. 2248 * @ioa_cfg: ioa config struct 2249 * @hostrcb: hostrcb struct 2250 * 2251 * This function logs an adapter error to the system. 2252 * 2253 * Return value: 2254 * none 2255 **/ 2256static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 2257 struct ipr_hostrcb *hostrcb) 2258{ 2259 u32 ioasc; 2260 int error_index; 2261 2262 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 2263 return; 2264 2265 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 2266 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 2267 2268 if (ioa_cfg->sis64) 2269 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2270 else 2271 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2272 2273 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || 2274 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { 2275 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 2276 scsi_report_bus_reset(ioa_cfg->host, 2277 hostrcb->hcam.u.error.fd_res_addr.bus); 2278 } 2279 2280 error_index = ipr_get_error(ioasc); 2281 2282 if (!ipr_error_table[error_index].log_hcam) 2283 return; 2284 2285 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 2286 2287 /* Set indication we have logged an error */ 2288 ioa_cfg->errors_logged++; 2289 2290 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 2291 return; 2292 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 2293 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 2294 2295 switch (hostrcb->hcam.overlay_id) { 2296 case IPR_HOST_RCB_OVERLAY_ID_2: 2297 ipr_log_cache_error(ioa_cfg, hostrcb); 2298 break; 2299 case IPR_HOST_RCB_OVERLAY_ID_3: 2300 ipr_log_config_error(ioa_cfg, hostrcb); 2301 break; 2302 case IPR_HOST_RCB_OVERLAY_ID_4: 2303 case IPR_HOST_RCB_OVERLAY_ID_6: 2304 ipr_log_array_error(ioa_cfg, hostrcb); 2305 break; 2306 case IPR_HOST_RCB_OVERLAY_ID_7: 2307 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 2308 break; 2309 case IPR_HOST_RCB_OVERLAY_ID_12: 2310 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 2311 break; 2312 case IPR_HOST_RCB_OVERLAY_ID_13: 2313 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 2314 break; 2315 case IPR_HOST_RCB_OVERLAY_ID_14: 2316 case IPR_HOST_RCB_OVERLAY_ID_16: 2317 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 2318 break; 2319 case IPR_HOST_RCB_OVERLAY_ID_17: 2320 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 2321 break; 2322 case IPR_HOST_RCB_OVERLAY_ID_20: 2323 ipr_log_fabric_error(ioa_cfg, hostrcb); 2324 break; 2325 case IPR_HOST_RCB_OVERLAY_ID_23: 2326 ipr_log_sis64_config_error(ioa_cfg, hostrcb); 2327 break; 2328 case IPR_HOST_RCB_OVERLAY_ID_24: 2329 case IPR_HOST_RCB_OVERLAY_ID_26: 2330 ipr_log_sis64_array_error(ioa_cfg, hostrcb); 2331 break; 2332 case IPR_HOST_RCB_OVERLAY_ID_30: 2333 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); 2334 break; 2335 case IPR_HOST_RCB_OVERLAY_ID_1: 2336 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 2337 default: 2338 ipr_log_generic_error(ioa_cfg, hostrcb); 2339 break; 2340 } 2341} 2342 2343/** 2344 * ipr_process_error - Op done function for an adapter error log. 2345 * @ipr_cmd: ipr command struct 2346 * 2347 * This function is the op done function for an error log host 2348 * controlled async from the adapter. It will log the error and 2349 * send the HCAM back to the adapter. 2350 * 2351 * Return value: 2352 * none 2353 **/ 2354static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 2355{ 2356 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2357 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 2358 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 2359 u32 fd_ioasc; 2360 2361 if (ioa_cfg->sis64) 2362 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2363 else 2364 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2365 2366 list_del(&hostrcb->queue); 2367 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 2368 2369 if (!ioasc) { 2370 ipr_handle_log_data(ioa_cfg, hostrcb); 2371 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 2372 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 2373 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 2374 dev_err(&ioa_cfg->pdev->dev, 2375 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 2376 } 2377 2378 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 2379} 2380 2381/** 2382 * ipr_timeout - An internally generated op has timed out. 2383 * @ipr_cmd: ipr command struct 2384 * 2385 * This function blocks host requests and initiates an 2386 * adapter reset. 2387 * 2388 * Return value: 2389 * none 2390 **/ 2391static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 2392{ 2393 unsigned long lock_flags = 0; 2394 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2395 2396 ENTER; 2397 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2398 2399 ioa_cfg->errors_logged++; 2400 dev_err(&ioa_cfg->pdev->dev, 2401 "Adapter being reset due to command timeout.\n"); 2402 2403 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2404 ioa_cfg->sdt_state = GET_DUMP; 2405 2406 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 2407 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2408 2409 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2410 LEAVE; 2411} 2412 2413/** 2414 * ipr_oper_timeout - Adapter timed out transitioning to operational 2415 * @ipr_cmd: ipr command struct 2416 * 2417 * This function blocks host requests and initiates an 2418 * adapter reset. 2419 * 2420 * Return value: 2421 * none 2422 **/ 2423static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 2424{ 2425 unsigned long lock_flags = 0; 2426 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2427 2428 ENTER; 2429 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2430 2431 ioa_cfg->errors_logged++; 2432 dev_err(&ioa_cfg->pdev->dev, 2433 "Adapter timed out transitioning to operational.\n"); 2434 2435 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2436 ioa_cfg->sdt_state = GET_DUMP; 2437 2438 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 2439 if (ipr_fastfail) 2440 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 2441 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2442 } 2443 2444 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2445 LEAVE; 2446} 2447 2448/** 2449 * ipr_reset_reload - Reset/Reload the IOA 2450 * @ioa_cfg: ioa config struct 2451 * @shutdown_type: shutdown type 2452 * 2453 * This function resets the adapter and re-initializes it. 2454 * This function assumes that all new host commands have been stopped. 2455 * Return value: 2456 * SUCCESS / FAILED 2457 **/ 2458static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 2459 enum ipr_shutdown_type shutdown_type) 2460{ 2461 if (!ioa_cfg->in_reset_reload) 2462 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 2463 2464 spin_unlock_irq(ioa_cfg->host->host_lock); 2465 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2466 spin_lock_irq(ioa_cfg->host->host_lock); 2467 2468 /* If we got hit with a host reset while we were already resetting 2469 the adapter for some reason, and the reset failed. */ 2470 if (ioa_cfg->ioa_is_dead) { 2471 ipr_trace; 2472 return FAILED; 2473 } 2474 2475 return SUCCESS; 2476} 2477 2478/** 2479 * ipr_find_ses_entry - Find matching SES in SES table 2480 * @res: resource entry struct of SES 2481 * 2482 * Return value: 2483 * pointer to SES table entry / NULL on failure 2484 **/ 2485static const struct ipr_ses_table_entry * 2486ipr_find_ses_entry(struct ipr_resource_entry *res) 2487{ 2488 int i, j, matches; 2489 struct ipr_std_inq_vpids *vpids; 2490 const struct ipr_ses_table_entry *ste = ipr_ses_table; 2491 2492 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 2493 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 2494 if (ste->compare_product_id_byte[j] == 'X') { 2495 vpids = &res->std_inq_data.vpids; 2496 if (vpids->product_id[j] == ste->product_id[j]) 2497 matches++; 2498 else 2499 break; 2500 } else 2501 matches++; 2502 } 2503 2504 if (matches == IPR_PROD_ID_LEN) 2505 return ste; 2506 } 2507 2508 return NULL; 2509} 2510 2511/** 2512 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 2513 * @ioa_cfg: ioa config struct 2514 * @bus: SCSI bus 2515 * @bus_width: bus width 2516 * 2517 * Return value: 2518 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 2519 * For a 2-byte wide SCSI bus, the maximum transfer speed is 2520 * twice the maximum transfer rate (e.g. for a wide enabled bus, 2521 * max 160MHz = max 320MB/sec). 2522 **/ 2523static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 2524{ 2525 struct ipr_resource_entry *res; 2526 const struct ipr_ses_table_entry *ste; 2527 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 2528 2529 /* Loop through each config table entry in the config table buffer */ 2530 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2531 if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) 2532 continue; 2533 2534 if (bus != res->bus) 2535 continue; 2536 2537 if (!(ste = ipr_find_ses_entry(res))) 2538 continue; 2539 2540 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 2541 } 2542 2543 return max_xfer_rate; 2544} 2545 2546/** 2547 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 2548 * @ioa_cfg: ioa config struct 2549 * @max_delay: max delay in micro-seconds to wait 2550 * 2551 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 2552 * 2553 * Return value: 2554 * 0 on success / other on failure 2555 **/ 2556static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 2557{ 2558 volatile u32 pcii_reg; 2559 int delay = 1; 2560 2561 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 2562 while (delay < max_delay) { 2563 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 2564 2565 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 2566 return 0; 2567 2568 /* udelay cannot be used if delay is more than a few milliseconds */ 2569 if ((delay / 1000) > MAX_UDELAY_MS) 2570 mdelay(delay / 1000); 2571 else 2572 udelay(delay); 2573 2574 delay += delay; 2575 } 2576 return -EIO; 2577} 2578 2579/** 2580 * ipr_get_sis64_dump_data_section - Dump IOA memory 2581 * @ioa_cfg: ioa config struct 2582 * @start_addr: adapter address to dump 2583 * @dest: destination kernel buffer 2584 * @length_in_words: length to dump in 4 byte words 2585 * 2586 * Return value: 2587 * 0 on success 2588 **/ 2589static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2590 u32 start_addr, 2591 __be32 *dest, u32 length_in_words) 2592{ 2593 int i; 2594 2595 for (i = 0; i < length_in_words; i++) { 2596 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); 2597 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); 2598 dest++; 2599 } 2600 2601 return 0; 2602} 2603 2604/** 2605 * ipr_get_ldump_data_section - Dump IOA memory 2606 * @ioa_cfg: ioa config struct 2607 * @start_addr: adapter address to dump 2608 * @dest: destination kernel buffer 2609 * @length_in_words: length to dump in 4 byte words 2610 * 2611 * Return value: 2612 * 0 on success / -EIO on failure 2613 **/ 2614static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2615 u32 start_addr, 2616 __be32 *dest, u32 length_in_words) 2617{ 2618 volatile u32 temp_pcii_reg; 2619 int i, delay = 0; 2620 2621 if (ioa_cfg->sis64) 2622 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, 2623 dest, length_in_words); 2624 2625 /* Write IOA interrupt reg starting LDUMP state */ 2626 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 2627 ioa_cfg->regs.set_uproc_interrupt_reg32); 2628 2629 /* Wait for IO debug acknowledge */ 2630 if (ipr_wait_iodbg_ack(ioa_cfg, 2631 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 2632 dev_err(&ioa_cfg->pdev->dev, 2633 "IOA dump long data transfer timeout\n"); 2634 return -EIO; 2635 } 2636 2637 /* Signal LDUMP interlocked - clear IO debug ack */ 2638 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2639 ioa_cfg->regs.clr_interrupt_reg); 2640 2641 /* Write Mailbox with starting address */ 2642 writel(start_addr, ioa_cfg->ioa_mailbox); 2643 2644 /* Signal address valid - clear IOA Reset alert */ 2645 writel(IPR_UPROCI_RESET_ALERT, 2646 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2647 2648 for (i = 0; i < length_in_words; i++) { 2649 /* Wait for IO debug acknowledge */ 2650 if (ipr_wait_iodbg_ack(ioa_cfg, 2651 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2652 dev_err(&ioa_cfg->pdev->dev, 2653 "IOA dump short data transfer timeout\n"); 2654 return -EIO; 2655 } 2656 2657 /* Read data from mailbox and increment destination pointer */ 2658 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2659 dest++; 2660 2661 /* For all but the last word of data, signal data received */ 2662 if (i < (length_in_words - 1)) { 2663 /* Signal dump data received - Clear IO debug Ack */ 2664 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2665 ioa_cfg->regs.clr_interrupt_reg); 2666 } 2667 } 2668 2669 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2670 writel(IPR_UPROCI_RESET_ALERT, 2671 ioa_cfg->regs.set_uproc_interrupt_reg32); 2672 2673 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2674 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2675 2676 /* Signal dump data received - Clear IO debug Ack */ 2677 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2678 ioa_cfg->regs.clr_interrupt_reg); 2679 2680 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2681 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2682 temp_pcii_reg = 2683 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 2684 2685 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2686 return 0; 2687 2688 udelay(10); 2689 delay += 10; 2690 } 2691 2692 return 0; 2693} 2694 2695#ifdef CONFIG_SCSI_IPR_DUMP 2696/** 2697 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2698 * @ioa_cfg: ioa config struct 2699 * @pci_address: adapter address 2700 * @length: length of data to copy 2701 * 2702 * Copy data from PCI adapter to kernel buffer. 2703 * Note: length MUST be a 4 byte multiple 2704 * Return value: 2705 * 0 on success / other on failure 2706 **/ 2707static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2708 unsigned long pci_address, u32 length) 2709{ 2710 int bytes_copied = 0; 2711 int cur_len, rc, rem_len, rem_page_len; 2712 __be32 *page; 2713 unsigned long lock_flags = 0; 2714 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2715 2716 while (bytes_copied < length && 2717 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2718 if (ioa_dump->page_offset >= PAGE_SIZE || 2719 ioa_dump->page_offset == 0) { 2720 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2721 2722 if (!page) { 2723 ipr_trace; 2724 return bytes_copied; 2725 } 2726 2727 ioa_dump->page_offset = 0; 2728 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2729 ioa_dump->next_page_index++; 2730 } else 2731 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2732 2733 rem_len = length - bytes_copied; 2734 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2735 cur_len = min(rem_len, rem_page_len); 2736 2737 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2738 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2739 rc = -EIO; 2740 } else { 2741 rc = ipr_get_ldump_data_section(ioa_cfg, 2742 pci_address + bytes_copied, 2743 &page[ioa_dump->page_offset / 4], 2744 (cur_len / sizeof(u32))); 2745 } 2746 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2747 2748 if (!rc) { 2749 ioa_dump->page_offset += cur_len; 2750 bytes_copied += cur_len; 2751 } else { 2752 ipr_trace; 2753 break; 2754 } 2755 schedule(); 2756 } 2757 2758 return bytes_copied; 2759} 2760 2761/** 2762 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2763 * @hdr: dump entry header struct 2764 * 2765 * Return value: 2766 * nothing 2767 **/ 2768static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2769{ 2770 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2771 hdr->num_elems = 1; 2772 hdr->offset = sizeof(*hdr); 2773 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2774} 2775 2776/** 2777 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2778 * @ioa_cfg: ioa config struct 2779 * @driver_dump: driver dump struct 2780 * 2781 * Return value: 2782 * nothing 2783 **/ 2784static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2785 struct ipr_driver_dump *driver_dump) 2786{ 2787 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2788 2789 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2790 driver_dump->ioa_type_entry.hdr.len = 2791 sizeof(struct ipr_dump_ioa_type_entry) - 2792 sizeof(struct ipr_dump_entry_header); 2793 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2794 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2795 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2796 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2797 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2798 ucode_vpd->minor_release[1]; 2799 driver_dump->hdr.num_entries++; 2800} 2801 2802/** 2803 * ipr_dump_version_data - Fill in the driver version in the dump. 2804 * @ioa_cfg: ioa config struct 2805 * @driver_dump: driver dump struct 2806 * 2807 * Return value: 2808 * nothing 2809 **/ 2810static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2811 struct ipr_driver_dump *driver_dump) 2812{ 2813 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2814 driver_dump->version_entry.hdr.len = 2815 sizeof(struct ipr_dump_version_entry) - 2816 sizeof(struct ipr_dump_entry_header); 2817 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2818 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2819 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2820 driver_dump->hdr.num_entries++; 2821} 2822 2823/** 2824 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2825 * @ioa_cfg: ioa config struct 2826 * @driver_dump: driver dump struct 2827 * 2828 * Return value: 2829 * nothing 2830 **/ 2831static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2832 struct ipr_driver_dump *driver_dump) 2833{ 2834 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2835 driver_dump->trace_entry.hdr.len = 2836 sizeof(struct ipr_dump_trace_entry) - 2837 sizeof(struct ipr_dump_entry_header); 2838 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2839 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2840 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2841 driver_dump->hdr.num_entries++; 2842} 2843 2844/** 2845 * ipr_dump_location_data - Fill in the IOA location in the dump. 2846 * @ioa_cfg: ioa config struct 2847 * @driver_dump: driver dump struct 2848 * 2849 * Return value: 2850 * nothing 2851 **/ 2852static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2853 struct ipr_driver_dump *driver_dump) 2854{ 2855 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2856 driver_dump->location_entry.hdr.len = 2857 sizeof(struct ipr_dump_location_entry) - 2858 sizeof(struct ipr_dump_entry_header); 2859 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2860 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2861 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2862 driver_dump->hdr.num_entries++; 2863} 2864 2865/** 2866 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2867 * @ioa_cfg: ioa config struct 2868 * @dump: dump struct 2869 * 2870 * Return value: 2871 * nothing 2872 **/ 2873static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2874{ 2875 unsigned long start_addr, sdt_word; 2876 unsigned long lock_flags = 0; 2877 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2878 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2879 u32 num_entries, start_off, end_off; 2880 u32 bytes_to_copy, bytes_copied, rc; 2881 struct ipr_sdt *sdt; 2882 int valid = 1; 2883 int i; 2884 2885 ENTER; 2886 2887 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2888 2889 if (ioa_cfg->sdt_state != GET_DUMP) { 2890 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2891 return; 2892 } 2893 2894 start_addr = readl(ioa_cfg->ioa_mailbox); 2895 2896 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { 2897 dev_err(&ioa_cfg->pdev->dev, 2898 "Invalid dump table format: %lx\n", start_addr); 2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2900 return; 2901 } 2902 2903 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2904 2905 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2906 2907 /* Initialize the overall dump header */ 2908 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2909 driver_dump->hdr.num_entries = 1; 2910 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2911 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2912 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2913 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2914 2915 ipr_dump_version_data(ioa_cfg, driver_dump); 2916 ipr_dump_location_data(ioa_cfg, driver_dump); 2917 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2918 ipr_dump_trace_data(ioa_cfg, driver_dump); 2919 2920 /* Update dump_header */ 2921 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2922 2923 /* IOA Dump entry */ 2924 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2925 ioa_dump->hdr.len = 0; 2926 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2927 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2928 2929 /* First entries in sdt are actually a list of dump addresses and 2930 lengths to gather the real dump data. sdt represents the pointer 2931 to the ioa generated dump table. Dump data will be extracted based 2932 on entries in this table */ 2933 sdt = &ioa_dump->sdt; 2934 2935 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2936 sizeof(struct ipr_sdt) / sizeof(__be32)); 2937 2938 /* Smart Dump table is ready to use and the first entry is valid */ 2939 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 2940 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 2941 dev_err(&ioa_cfg->pdev->dev, 2942 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2943 rc, be32_to_cpu(sdt->hdr.state)); 2944 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2945 ioa_cfg->sdt_state = DUMP_OBTAINED; 2946 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2947 return; 2948 } 2949 2950 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2951 2952 if (num_entries > IPR_NUM_SDT_ENTRIES) 2953 num_entries = IPR_NUM_SDT_ENTRIES; 2954 2955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2956 2957 for (i = 0; i < num_entries; i++) { 2958 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2959 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2960 break; 2961 } 2962 2963 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2964 sdt_word = be32_to_cpu(sdt->entry[i].start_token); 2965 if (ioa_cfg->sis64) 2966 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); 2967 else { 2968 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2969 end_off = be32_to_cpu(sdt->entry[i].end_token); 2970 2971 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) 2972 bytes_to_copy = end_off - start_off; 2973 else 2974 valid = 0; 2975 } 2976 if (valid) { 2977 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2978 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2979 continue; 2980 } 2981 2982 /* Copy data from adapter to driver buffers */ 2983 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2984 bytes_to_copy); 2985 2986 ioa_dump->hdr.len += bytes_copied; 2987 2988 if (bytes_copied != bytes_to_copy) { 2989 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2990 break; 2991 } 2992 } 2993 } 2994 } 2995 2996 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 2997 2998 /* Update dump_header */ 2999 driver_dump->hdr.len += ioa_dump->hdr.len; 3000 wmb(); 3001 ioa_cfg->sdt_state = DUMP_OBTAINED; 3002 LEAVE; 3003} 3004 3005#else 3006#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 3007#endif 3008 3009/** 3010 * ipr_release_dump - Free adapter dump memory 3011 * @kref: kref struct 3012 * 3013 * Return value: 3014 * nothing 3015 **/ 3016static void ipr_release_dump(struct kref *kref) 3017{ 3018 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 3019 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 3020 unsigned long lock_flags = 0; 3021 int i; 3022 3023 ENTER; 3024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3025 ioa_cfg->dump = NULL; 3026 ioa_cfg->sdt_state = INACTIVE; 3027 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3028 3029 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 3030 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 3031 3032 kfree(dump); 3033 LEAVE; 3034} 3035 3036/** 3037 * ipr_worker_thread - Worker thread 3038 * @work: ioa config struct 3039 * 3040 * Called at task level from a work thread. This function takes care 3041 * of adding and removing device from the mid-layer as configuration 3042 * changes are detected by the adapter. 3043 * 3044 * Return value: 3045 * nothing 3046 **/ 3047static void ipr_worker_thread(struct work_struct *work) 3048{ 3049 unsigned long lock_flags; 3050 struct ipr_resource_entry *res; 3051 struct scsi_device *sdev; 3052 struct ipr_dump *dump; 3053 struct ipr_ioa_cfg *ioa_cfg = 3054 container_of(work, struct ipr_ioa_cfg, work_q); 3055 u8 bus, target, lun; 3056 int did_work; 3057 3058 ENTER; 3059 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3060 3061 if (ioa_cfg->sdt_state == GET_DUMP) { 3062 dump = ioa_cfg->dump; 3063 if (!dump) { 3064 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3065 return; 3066 } 3067 kref_get(&dump->kref); 3068 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3069 ipr_get_ioa_dump(ioa_cfg, dump); 3070 kref_put(&dump->kref, ipr_release_dump); 3071 3072 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3073 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 3074 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3076 return; 3077 } 3078 3079restart: 3080 do { 3081 did_work = 0; 3082 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 3083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3084 return; 3085 } 3086 3087 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3088 if (res->del_from_ml && res->sdev) { 3089 did_work = 1; 3090 sdev = res->sdev; 3091 if (!scsi_device_get(sdev)) { 3092 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3093 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3094 scsi_remove_device(sdev); 3095 scsi_device_put(sdev); 3096 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3097 } 3098 break; 3099 } 3100 } 3101 } while(did_work); 3102 3103 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3104 if (res->add_to_ml) { 3105 bus = res->bus; 3106 target = res->target; 3107 lun = res->lun; 3108 res->add_to_ml = 0; 3109 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3110 scsi_add_device(ioa_cfg->host, bus, target, lun); 3111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3112 goto restart; 3113 } 3114 } 3115 3116 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3117 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3118 LEAVE; 3119} 3120 3121#ifdef CONFIG_SCSI_IPR_TRACE 3122/** 3123 * ipr_read_trace - Dump the adapter trace 3124 * @filp: open sysfs file 3125 * @kobj: kobject struct 3126 * @bin_attr: bin_attribute struct 3127 * @buf: buffer 3128 * @off: offset 3129 * @count: buffer size 3130 * 3131 * Return value: 3132 * number of bytes printed to buffer 3133 **/ 3134static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, 3135 struct bin_attribute *bin_attr, 3136 char *buf, loff_t off, size_t count) 3137{ 3138 struct device *dev = container_of(kobj, struct device, kobj); 3139 struct Scsi_Host *shost = class_to_shost(dev); 3140 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3141 unsigned long lock_flags = 0; 3142 ssize_t ret; 3143 3144 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3145 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3146 IPR_TRACE_SIZE); 3147 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3148 3149 return ret; 3150} 3151 3152static struct bin_attribute ipr_trace_attr = { 3153 .attr = { 3154 .name = "trace", 3155 .mode = S_IRUGO, 3156 }, 3157 .size = 0, 3158 .read = ipr_read_trace, 3159}; 3160#endif 3161 3162/** 3163 * ipr_show_fw_version - Show the firmware version 3164 * @dev: class device struct 3165 * @buf: buffer 3166 * 3167 * Return value: 3168 * number of bytes printed to buffer 3169 **/ 3170static ssize_t ipr_show_fw_version(struct device *dev, 3171 struct device_attribute *attr, char *buf) 3172{ 3173 struct Scsi_Host *shost = class_to_shost(dev); 3174 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3175 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3176 unsigned long lock_flags = 0; 3177 int len; 3178 3179 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3180 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3181 ucode_vpd->major_release, ucode_vpd->card_type, 3182 ucode_vpd->minor_release[0], 3183 ucode_vpd->minor_release[1]); 3184 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3185 return len; 3186} 3187 3188static struct device_attribute ipr_fw_version_attr = { 3189 .attr = { 3190 .name = "fw_version", 3191 .mode = S_IRUGO, 3192 }, 3193 .show = ipr_show_fw_version, 3194}; 3195 3196/** 3197 * ipr_show_log_level - Show the adapter's error logging level 3198 * @dev: class device struct 3199 * @buf: buffer 3200 * 3201 * Return value: 3202 * number of bytes printed to buffer 3203 **/ 3204static ssize_t ipr_show_log_level(struct device *dev, 3205 struct device_attribute *attr, char *buf) 3206{ 3207 struct Scsi_Host *shost = class_to_shost(dev); 3208 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3209 unsigned long lock_flags = 0; 3210 int len; 3211 3212 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3213 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3214 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3215 return len; 3216} 3217 3218/** 3219 * ipr_store_log_level - Change the adapter's error logging level 3220 * @dev: class device struct 3221 * @buf: buffer 3222 * 3223 * Return value: 3224 * number of bytes printed to buffer 3225 **/ 3226static ssize_t ipr_store_log_level(struct device *dev, 3227 struct device_attribute *attr, 3228 const char *buf, size_t count) 3229{ 3230 struct Scsi_Host *shost = class_to_shost(dev); 3231 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3232 unsigned long lock_flags = 0; 3233 3234 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3235 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3236 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3237 return strlen(buf); 3238} 3239 3240static struct device_attribute ipr_log_level_attr = { 3241 .attr = { 3242 .name = "log_level", 3243 .mode = S_IRUGO | S_IWUSR, 3244 }, 3245 .show = ipr_show_log_level, 3246 .store = ipr_store_log_level 3247}; 3248 3249/** 3250 * ipr_store_diagnostics - IOA Diagnostics interface 3251 * @dev: device struct 3252 * @buf: buffer 3253 * @count: buffer size 3254 * 3255 * This function will reset the adapter and wait a reasonable 3256 * amount of time for any errors that the adapter might log. 3257 * 3258 * Return value: 3259 * count on success / other on failure 3260 **/ 3261static ssize_t ipr_store_diagnostics(struct device *dev, 3262 struct device_attribute *attr, 3263 const char *buf, size_t count) 3264{ 3265 struct Scsi_Host *shost = class_to_shost(dev); 3266 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3267 unsigned long lock_flags = 0; 3268 int rc = count; 3269 3270 if (!capable(CAP_SYS_ADMIN)) 3271 return -EACCES; 3272 3273 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3274 while(ioa_cfg->in_reset_reload) { 3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3276 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3277 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3278 } 3279 3280 ioa_cfg->errors_logged = 0; 3281 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3282 3283 if (ioa_cfg->in_reset_reload) { 3284 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3285 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3286 3287 /* Wait for a second for any errors to be logged */ 3288 msleep(1000); 3289 } else { 3290 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3291 return -EIO; 3292 } 3293 3294 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3295 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3296 rc = -EIO; 3297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3298 3299 return rc; 3300} 3301 3302static struct device_attribute ipr_diagnostics_attr = { 3303 .attr = { 3304 .name = "run_diagnostics", 3305 .mode = S_IWUSR, 3306 }, 3307 .store = ipr_store_diagnostics 3308}; 3309 3310/** 3311 * ipr_show_adapter_state - Show the adapter's state 3312 * @class_dev: device struct 3313 * @buf: buffer 3314 * 3315 * Return value: 3316 * number of bytes printed to buffer 3317 **/ 3318static ssize_t ipr_show_adapter_state(struct device *dev, 3319 struct device_attribute *attr, char *buf) 3320{ 3321 struct Scsi_Host *shost = class_to_shost(dev); 3322 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3323 unsigned long lock_flags = 0; 3324 int len; 3325 3326 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3327 if (ioa_cfg->ioa_is_dead) 3328 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3329 else 3330 len = snprintf(buf, PAGE_SIZE, "online\n"); 3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3332 return len; 3333} 3334 3335/** 3336 * ipr_store_adapter_state - Change adapter state 3337 * @dev: device struct 3338 * @buf: buffer 3339 * @count: buffer size 3340 * 3341 * This function will change the adapter's state. 3342 * 3343 * Return value: 3344 * count on success / other on failure 3345 **/ 3346static ssize_t ipr_store_adapter_state(struct device *dev, 3347 struct device_attribute *attr, 3348 const char *buf, size_t count) 3349{ 3350 struct Scsi_Host *shost = class_to_shost(dev); 3351 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3352 unsigned long lock_flags; 3353 int result = count; 3354 3355 if (!capable(CAP_SYS_ADMIN)) 3356 return -EACCES; 3357 3358 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3359 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 3360 ioa_cfg->ioa_is_dead = 0; 3361 ioa_cfg->reset_retries = 0; 3362 ioa_cfg->in_ioa_bringdown = 0; 3363 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3364 } 3365 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3366 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3367 3368 return result; 3369} 3370 3371static struct device_attribute ipr_ioa_state_attr = { 3372 .attr = { 3373 .name = "online_state", 3374 .mode = S_IRUGO | S_IWUSR, 3375 }, 3376 .show = ipr_show_adapter_state, 3377 .store = ipr_store_adapter_state 3378}; 3379 3380/** 3381 * ipr_store_reset_adapter - Reset the adapter 3382 * @dev: device struct 3383 * @buf: buffer 3384 * @count: buffer size 3385 * 3386 * This function will reset the adapter. 3387 * 3388 * Return value: 3389 * count on success / other on failure 3390 **/ 3391static ssize_t ipr_store_reset_adapter(struct device *dev, 3392 struct device_attribute *attr, 3393 const char *buf, size_t count) 3394{ 3395 struct Scsi_Host *shost = class_to_shost(dev); 3396 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3397 unsigned long lock_flags; 3398 int result = count; 3399 3400 if (!capable(CAP_SYS_ADMIN)) 3401 return -EACCES; 3402 3403 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3404 if (!ioa_cfg->in_reset_reload) 3405 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3406 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3407 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3408 3409 return result; 3410} 3411 3412static struct device_attribute ipr_ioa_reset_attr = { 3413 .attr = { 3414 .name = "reset_host", 3415 .mode = S_IWUSR, 3416 }, 3417 .store = ipr_store_reset_adapter 3418}; 3419 3420/** 3421 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3422 * @buf_len: buffer length 3423 * 3424 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3425 * list to use for microcode download 3426 * 3427 * Return value: 3428 * pointer to sglist / NULL on failure 3429 **/ 3430static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3431{ 3432 int sg_size, order, bsize_elem, num_elem, i, j; 3433 struct ipr_sglist *sglist; 3434 struct scatterlist *scatterlist; 3435 struct page *page; 3436 3437 /* Get the minimum size per scatter/gather element */ 3438 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3439 3440 /* Get the actual size per element */ 3441 order = get_order(sg_size); 3442 3443 /* Determine the actual number of bytes per element */ 3444 bsize_elem = PAGE_SIZE * (1 << order); 3445 3446 /* Determine the actual number of sg entries needed */ 3447 if (buf_len % bsize_elem) 3448 num_elem = (buf_len / bsize_elem) + 1; 3449 else 3450 num_elem = buf_len / bsize_elem; 3451 3452 /* Allocate a scatter/gather list for the DMA */ 3453 sglist = kzalloc(sizeof(struct ipr_sglist) + 3454 (sizeof(struct scatterlist) * (num_elem - 1)), 3455 GFP_KERNEL); 3456 3457 if (sglist == NULL) { 3458 ipr_trace; 3459 return NULL; 3460 } 3461 3462 scatterlist = sglist->scatterlist; 3463 sg_init_table(scatterlist, num_elem); 3464 3465 sglist->order = order; 3466 sglist->num_sg = num_elem; 3467 3468 /* Allocate a bunch of sg elements */ 3469 for (i = 0; i < num_elem; i++) { 3470 page = alloc_pages(GFP_KERNEL, order); 3471 if (!page) { 3472 ipr_trace; 3473 3474 /* Free up what we already allocated */ 3475 for (j = i - 1; j >= 0; j--) 3476 __free_pages(sg_page(&scatterlist[j]), order); 3477 kfree(sglist); 3478 return NULL; 3479 } 3480 3481 sg_set_page(&scatterlist[i], page, 0, 0); 3482 } 3483 3484 return sglist; 3485} 3486 3487/** 3488 * ipr_free_ucode_buffer - Frees a microcode download buffer 3489 * @p_dnld: scatter/gather list pointer 3490 * 3491 * Free a DMA'able ucode download buffer previously allocated with 3492 * ipr_alloc_ucode_buffer 3493 * 3494 * Return value: 3495 * nothing 3496 **/ 3497static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3498{ 3499 int i; 3500 3501 for (i = 0; i < sglist->num_sg; i++) 3502 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 3503 3504 kfree(sglist); 3505} 3506 3507/** 3508 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3509 * @sglist: scatter/gather list pointer 3510 * @buffer: buffer pointer 3511 * @len: buffer length 3512 * 3513 * Copy a microcode image from a user buffer into a buffer allocated by 3514 * ipr_alloc_ucode_buffer 3515 * 3516 * Return value: 3517 * 0 on success / other on failure 3518 **/ 3519static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3520 u8 *buffer, u32 len) 3521{ 3522 int bsize_elem, i, result = 0; 3523 struct scatterlist *scatterlist; 3524 void *kaddr; 3525 3526 /* Determine the actual number of bytes per element */ 3527 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3528 3529 scatterlist = sglist->scatterlist; 3530 3531 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 3532 struct page *page = sg_page(&scatterlist[i]); 3533 3534 kaddr = kmap(page); 3535 memcpy(kaddr, buffer, bsize_elem); 3536 kunmap(page); 3537 3538 scatterlist[i].length = bsize_elem; 3539 3540 if (result != 0) { 3541 ipr_trace; 3542 return result; 3543 } 3544 } 3545 3546 if (len % bsize_elem) { 3547 struct page *page = sg_page(&scatterlist[i]); 3548 3549 kaddr = kmap(page); 3550 memcpy(kaddr, buffer, len % bsize_elem); 3551 kunmap(page); 3552 3553 scatterlist[i].length = len % bsize_elem; 3554 } 3555 3556 sglist->buffer_len = len; 3557 return result; 3558} 3559 3560/** 3561 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3562 * @ipr_cmd: ipr command struct 3563 * @sglist: scatter/gather list 3564 * 3565 * Builds a microcode download IOA data list (IOADL). 3566 * 3567 **/ 3568static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3569 struct ipr_sglist *sglist) 3570{ 3571 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3572 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3573 struct scatterlist *scatterlist = sglist->scatterlist; 3574 int i; 3575 3576 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3577 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3578 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3579 3580 ioarcb->ioadl_len = 3581 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3582 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3583 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3584 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); 3585 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); 3586 } 3587 3588 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3589} 3590 3591/** 3592 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3593 * @ipr_cmd: ipr command struct 3594 * @sglist: scatter/gather list 3595 * 3596 * Builds a microcode download IOA data list (IOADL). 3597 * 3598 **/ 3599static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3600 struct ipr_sglist *sglist) 3601{ 3602 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3603 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3604 struct scatterlist *scatterlist = sglist->scatterlist; 3605 int i; 3606 3607 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3608 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3609 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3610 3611 ioarcb->ioadl_len = 3612 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3613 3614 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3615 ioadl[i].flags_and_data_len = 3616 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3617 ioadl[i].address = 3618 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3619 } 3620 3621 ioadl[i-1].flags_and_data_len |= 3622 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3623} 3624 3625/** 3626 * ipr_update_ioa_ucode - Update IOA's microcode 3627 * @ioa_cfg: ioa config struct 3628 * @sglist: scatter/gather list 3629 * 3630 * Initiate an adapter reset to update the IOA's microcode 3631 * 3632 * Return value: 3633 * 0 on success / -EIO on failure 3634 **/ 3635static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3636 struct ipr_sglist *sglist) 3637{ 3638 unsigned long lock_flags; 3639 3640 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3641 while(ioa_cfg->in_reset_reload) { 3642 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3643 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3644 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3645 } 3646 3647 if (ioa_cfg->ucode_sglist) { 3648 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3649 dev_err(&ioa_cfg->pdev->dev, 3650 "Microcode download already in progress\n"); 3651 return -EIO; 3652 } 3653 3654 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3655 sglist->num_sg, DMA_TO_DEVICE); 3656 3657 if (!sglist->num_dma_sg) { 3658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3659 dev_err(&ioa_cfg->pdev->dev, 3660 "Failed to map microcode download buffer!\n"); 3661 return -EIO; 3662 } 3663 3664 ioa_cfg->ucode_sglist = sglist; 3665 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3667 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3668 3669 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3670 ioa_cfg->ucode_sglist = NULL; 3671 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3672 return 0; 3673} 3674 3675/** 3676 * ipr_store_update_fw - Update the firmware on the adapter 3677 * @class_dev: device struct 3678 * @buf: buffer 3679 * @count: buffer size 3680 * 3681 * This function will update the firmware on the adapter. 3682 * 3683 * Return value: 3684 * count on success / other on failure 3685 **/ 3686static ssize_t ipr_store_update_fw(struct device *dev, 3687 struct device_attribute *attr, 3688 const char *buf, size_t count) 3689{ 3690 struct Scsi_Host *shost = class_to_shost(dev); 3691 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3692 struct ipr_ucode_image_header *image_hdr; 3693 const struct firmware *fw_entry; 3694 struct ipr_sglist *sglist; 3695 char fname[100]; 3696 char *src; 3697 int len, result, dnld_size; 3698 3699 if (!capable(CAP_SYS_ADMIN)) 3700 return -EACCES; 3701 3702 len = snprintf(fname, 99, "%s", buf); 3703 fname[len-1] = '\0'; 3704 3705 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3706 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3707 return -EIO; 3708 } 3709 3710 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3711 3712 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3713 (ioa_cfg->vpd_cbs->page3_data.card_type && 3714 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3715 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3716 release_firmware(fw_entry); 3717 return -EINVAL; 3718 } 3719 3720 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3721 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3722 sglist = ipr_alloc_ucode_buffer(dnld_size); 3723 3724 if (!sglist) { 3725 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3726 release_firmware(fw_entry); 3727 return -ENOMEM; 3728 } 3729 3730 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3731 3732 if (result) { 3733 dev_err(&ioa_cfg->pdev->dev, 3734 "Microcode buffer copy to DMA buffer failed\n"); 3735 goto out; 3736 } 3737 3738 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3739 3740 if (!result) 3741 result = count; 3742out: 3743 ipr_free_ucode_buffer(sglist); 3744 release_firmware(fw_entry); 3745 return result; 3746} 3747 3748static struct device_attribute ipr_update_fw_attr = { 3749 .attr = { 3750 .name = "update_fw", 3751 .mode = S_IWUSR, 3752 }, 3753 .store = ipr_store_update_fw 3754}; 3755 3756static struct device_attribute *ipr_ioa_attrs[] = { 3757 &ipr_fw_version_attr, 3758 &ipr_log_level_attr, 3759 &ipr_diagnostics_attr, 3760 &ipr_ioa_state_attr, 3761 &ipr_ioa_reset_attr, 3762 &ipr_update_fw_attr, 3763 NULL, 3764}; 3765 3766#ifdef CONFIG_SCSI_IPR_DUMP 3767/** 3768 * ipr_read_dump - Dump the adapter 3769 * @filp: open sysfs file 3770 * @kobj: kobject struct 3771 * @bin_attr: bin_attribute struct 3772 * @buf: buffer 3773 * @off: offset 3774 * @count: buffer size 3775 * 3776 * Return value: 3777 * number of bytes printed to buffer 3778 **/ 3779static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, 3780 struct bin_attribute *bin_attr, 3781 char *buf, loff_t off, size_t count) 3782{ 3783 struct device *cdev = container_of(kobj, struct device, kobj); 3784 struct Scsi_Host *shost = class_to_shost(cdev); 3785 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3786 struct ipr_dump *dump; 3787 unsigned long lock_flags = 0; 3788 char *src; 3789 int len; 3790 size_t rc = count; 3791 3792 if (!capable(CAP_SYS_ADMIN)) 3793 return -EACCES; 3794 3795 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3796 dump = ioa_cfg->dump; 3797 3798 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3799 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3800 return 0; 3801 } 3802 kref_get(&dump->kref); 3803 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3804 3805 if (off > dump->driver_dump.hdr.len) { 3806 kref_put(&dump->kref, ipr_release_dump); 3807 return 0; 3808 } 3809 3810 if (off + count > dump->driver_dump.hdr.len) { 3811 count = dump->driver_dump.hdr.len - off; 3812 rc = count; 3813 } 3814 3815 if (count && off < sizeof(dump->driver_dump)) { 3816 if (off + count > sizeof(dump->driver_dump)) 3817 len = sizeof(dump->driver_dump) - off; 3818 else 3819 len = count; 3820 src = (u8 *)&dump->driver_dump + off; 3821 memcpy(buf, src, len); 3822 buf += len; 3823 off += len; 3824 count -= len; 3825 } 3826 3827 off -= sizeof(dump->driver_dump); 3828 3829 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3830 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3831 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3832 else 3833 len = count; 3834 src = (u8 *)&dump->ioa_dump + off; 3835 memcpy(buf, src, len); 3836 buf += len; 3837 off += len; 3838 count -= len; 3839 } 3840 3841 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3842 3843 while (count) { 3844 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3845 len = PAGE_ALIGN(off) - off; 3846 else 3847 len = count; 3848 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3849 src += off & ~PAGE_MASK; 3850 memcpy(buf, src, len); 3851 buf += len; 3852 off += len; 3853 count -= len; 3854 } 3855 3856 kref_put(&dump->kref, ipr_release_dump); 3857 return rc; 3858} 3859 3860/** 3861 * ipr_alloc_dump - Prepare for adapter dump 3862 * @ioa_cfg: ioa config struct 3863 * 3864 * Return value: 3865 * 0 on success / other on failure 3866 **/ 3867static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3868{ 3869 struct ipr_dump *dump; 3870 unsigned long lock_flags = 0; 3871 3872 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3873 3874 if (!dump) { 3875 ipr_err("Dump memory allocation failed\n"); 3876 return -ENOMEM; 3877 } 3878 3879 kref_init(&dump->kref); 3880 dump->ioa_cfg = ioa_cfg; 3881 3882 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3883 3884 if (INACTIVE != ioa_cfg->sdt_state) { 3885 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3886 kfree(dump); 3887 return 0; 3888 } 3889 3890 ioa_cfg->dump = dump; 3891 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3892 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3893 ioa_cfg->dump_taken = 1; 3894 schedule_work(&ioa_cfg->work_q); 3895 } 3896 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3897 3898 return 0; 3899} 3900 3901/** 3902 * ipr_free_dump - Free adapter dump memory 3903 * @ioa_cfg: ioa config struct 3904 * 3905 * Return value: 3906 * 0 on success / other on failure 3907 **/ 3908static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3909{ 3910 struct ipr_dump *dump; 3911 unsigned long lock_flags = 0; 3912 3913 ENTER; 3914 3915 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3916 dump = ioa_cfg->dump; 3917 if (!dump) { 3918 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3919 return 0; 3920 } 3921 3922 ioa_cfg->dump = NULL; 3923 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3924 3925 kref_put(&dump->kref, ipr_release_dump); 3926 3927 LEAVE; 3928 return 0; 3929} 3930 3931/** 3932 * ipr_write_dump - Setup dump state of adapter 3933 * @filp: open sysfs file 3934 * @kobj: kobject struct 3935 * @bin_attr: bin_attribute struct 3936 * @buf: buffer 3937 * @off: offset 3938 * @count: buffer size 3939 * 3940 * Return value: 3941 * number of bytes printed to buffer 3942 **/ 3943static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, 3944 struct bin_attribute *bin_attr, 3945 char *buf, loff_t off, size_t count) 3946{ 3947 struct device *cdev = container_of(kobj, struct device, kobj); 3948 struct Scsi_Host *shost = class_to_shost(cdev); 3949 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3950 int rc; 3951 3952 if (!capable(CAP_SYS_ADMIN)) 3953 return -EACCES; 3954 3955 if (buf[0] == '1') 3956 rc = ipr_alloc_dump(ioa_cfg); 3957 else if (buf[0] == '0') 3958 rc = ipr_free_dump(ioa_cfg); 3959 else 3960 return -EINVAL; 3961 3962 if (rc) 3963 return rc; 3964 else 3965 return count; 3966} 3967 3968static struct bin_attribute ipr_dump_attr = { 3969 .attr = { 3970 .name = "dump", 3971 .mode = S_IRUSR | S_IWUSR, 3972 }, 3973 .size = 0, 3974 .read = ipr_read_dump, 3975 .write = ipr_write_dump 3976}; 3977#else 3978static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 3979#endif 3980 3981/** 3982 * ipr_change_queue_depth - Change the device's queue depth 3983 * @sdev: scsi device struct 3984 * @qdepth: depth to set 3985 * @reason: calling context 3986 * 3987 * Return value: 3988 * actual depth set 3989 **/ 3990static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, 3991 int reason) 3992{ 3993 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 3994 struct ipr_resource_entry *res; 3995 unsigned long lock_flags = 0; 3996 3997 if (reason != SCSI_QDEPTH_DEFAULT) 3998 return -EOPNOTSUPP; 3999 4000 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4001 res = (struct ipr_resource_entry *)sdev->hostdata; 4002 4003 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 4004 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 4005 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4006 4007 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 4008 return sdev->queue_depth; 4009} 4010 4011/** 4012 * ipr_change_queue_type - Change the device's queue type 4013 * @dsev: scsi device struct 4014 * @tag_type: type of tags to use 4015 * 4016 * Return value: 4017 * actual queue type set 4018 **/ 4019static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 4020{ 4021 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4022 struct ipr_resource_entry *res; 4023 unsigned long lock_flags = 0; 4024 4025 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4026 res = (struct ipr_resource_entry *)sdev->hostdata; 4027 4028 if (res) { 4029 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 4030 /* 4031 * We don't bother quiescing the device here since the 4032 * adapter firmware does it for us. 4033 */ 4034 scsi_set_tag_type(sdev, tag_type); 4035 4036 if (tag_type) 4037 scsi_activate_tcq(sdev, sdev->queue_depth); 4038 else 4039 scsi_deactivate_tcq(sdev, sdev->queue_depth); 4040 } else 4041 tag_type = 0; 4042 } else 4043 tag_type = 0; 4044 4045 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4046 return tag_type; 4047} 4048 4049/** 4050 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4051 * @dev: device struct 4052 * @buf: buffer 4053 * 4054 * Return value: 4055 * number of bytes printed to buffer 4056 **/ 4057static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4058{ 4059 struct scsi_device *sdev = to_scsi_device(dev); 4060 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4061 struct ipr_resource_entry *res; 4062 unsigned long lock_flags = 0; 4063 ssize_t len = -ENXIO; 4064 4065 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4066 res = (struct ipr_resource_entry *)sdev->hostdata; 4067 if (res) 4068 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4069 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4070 return len; 4071} 4072 4073static struct device_attribute ipr_adapter_handle_attr = { 4074 .attr = { 4075 .name = "adapter_handle", 4076 .mode = S_IRUSR, 4077 }, 4078 .show = ipr_show_adapter_handle 4079}; 4080 4081/** 4082 * ipr_show_resource_path - Show the resource path for this device. 4083 * @dev: device struct 4084 * @buf: buffer 4085 * 4086 * Return value: 4087 * number of bytes printed to buffer 4088 **/ 4089static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4090{ 4091 struct scsi_device *sdev = to_scsi_device(dev); 4092 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4093 struct ipr_resource_entry *res; 4094 unsigned long lock_flags = 0; 4095 ssize_t len = -ENXIO; 4096 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4097 4098 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4099 res = (struct ipr_resource_entry *)sdev->hostdata; 4100 if (res) 4101 len = snprintf(buf, PAGE_SIZE, "%s\n", 4102 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 4103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4104 return len; 4105} 4106 4107static struct device_attribute ipr_resource_path_attr = { 4108 .attr = { 4109 .name = "resource_path", 4110 .mode = S_IRUSR, 4111 }, 4112 .show = ipr_show_resource_path 4113}; 4114 4115static struct device_attribute *ipr_dev_attrs[] = { 4116 &ipr_adapter_handle_attr, 4117 &ipr_resource_path_attr, 4118 NULL, 4119}; 4120 4121/** 4122 * ipr_biosparam - Return the HSC mapping 4123 * @sdev: scsi device struct 4124 * @block_device: block device pointer 4125 * @capacity: capacity of the device 4126 * @parm: Array containing returned HSC values. 4127 * 4128 * This function generates the HSC parms that fdisk uses. 4129 * We want to make sure we return something that places partitions 4130 * on 4k boundaries for best performance with the IOA. 4131 * 4132 * Return value: 4133 * 0 on success 4134 **/ 4135static int ipr_biosparam(struct scsi_device *sdev, 4136 struct block_device *block_device, 4137 sector_t capacity, int *parm) 4138{ 4139 int heads, sectors; 4140 sector_t cylinders; 4141 4142 heads = 128; 4143 sectors = 32; 4144 4145 cylinders = capacity; 4146 sector_div(cylinders, (128 * 32)); 4147 4148 /* return result */ 4149 parm[0] = heads; 4150 parm[1] = sectors; 4151 parm[2] = cylinders; 4152 4153 return 0; 4154} 4155 4156/** 4157 * ipr_find_starget - Find target based on bus/target. 4158 * @starget: scsi target struct 4159 * 4160 * Return value: 4161 * resource entry pointer if found / NULL if not found 4162 **/ 4163static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4164{ 4165 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4166 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4167 struct ipr_resource_entry *res; 4168 4169 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4170 if ((res->bus == starget->channel) && 4171 (res->target == starget->id) && 4172 (res->lun == 0)) { 4173 return res; 4174 } 4175 } 4176 4177 return NULL; 4178} 4179 4180static struct ata_port_info sata_port_info; 4181 4182/** 4183 * ipr_target_alloc - Prepare for commands to a SCSI target 4184 * @starget: scsi target struct 4185 * 4186 * If the device is a SATA device, this function allocates an 4187 * ATA port with libata, else it does nothing. 4188 * 4189 * Return value: 4190 * 0 on success / non-0 on failure 4191 **/ 4192static int ipr_target_alloc(struct scsi_target *starget) 4193{ 4194 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4195 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4196 struct ipr_sata_port *sata_port; 4197 struct ata_port *ap; 4198 struct ipr_resource_entry *res; 4199 unsigned long lock_flags; 4200 4201 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4202 res = ipr_find_starget(starget); 4203 starget->hostdata = NULL; 4204 4205 if (res && ipr_is_gata(res)) { 4206 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4207 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4208 if (!sata_port) 4209 return -ENOMEM; 4210 4211 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4212 if (ap) { 4213 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4214 sata_port->ioa_cfg = ioa_cfg; 4215 sata_port->ap = ap; 4216 sata_port->res = res; 4217 4218 res->sata_port = sata_port; 4219 ap->private_data = sata_port; 4220 starget->hostdata = sata_port; 4221 } else { 4222 kfree(sata_port); 4223 return -ENOMEM; 4224 } 4225 } 4226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4227 4228 return 0; 4229} 4230 4231/** 4232 * ipr_target_destroy - Destroy a SCSI target 4233 * @starget: scsi target struct 4234 * 4235 * If the device was a SATA device, this function frees the libata 4236 * ATA port, else it does nothing. 4237 * 4238 **/ 4239static void ipr_target_destroy(struct scsi_target *starget) 4240{ 4241 struct ipr_sata_port *sata_port = starget->hostdata; 4242 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4243 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4244 4245 if (ioa_cfg->sis64) { 4246 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4247 clear_bit(starget->id, ioa_cfg->array_ids); 4248 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4249 clear_bit(starget->id, ioa_cfg->vset_ids); 4250 else if (starget->channel == 0) 4251 clear_bit(starget->id, ioa_cfg->target_ids); 4252 } 4253 4254 if (sata_port) { 4255 starget->hostdata = NULL; 4256 ata_sas_port_destroy(sata_port->ap); 4257 kfree(sata_port); 4258 } 4259} 4260 4261/** 4262 * ipr_find_sdev - Find device based on bus/target/lun. 4263 * @sdev: scsi device struct 4264 * 4265 * Return value: 4266 * resource entry pointer if found / NULL if not found 4267 **/ 4268static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4269{ 4270 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4271 struct ipr_resource_entry *res; 4272 4273 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4274 if ((res->bus == sdev->channel) && 4275 (res->target == sdev->id) && 4276 (res->lun == sdev->lun)) 4277 return res; 4278 } 4279 4280 return NULL; 4281} 4282 4283/** 4284 * ipr_slave_destroy - Unconfigure a SCSI device 4285 * @sdev: scsi device struct 4286 * 4287 * Return value: 4288 * nothing 4289 **/ 4290static void ipr_slave_destroy(struct scsi_device *sdev) 4291{ 4292 struct ipr_resource_entry *res; 4293 struct ipr_ioa_cfg *ioa_cfg; 4294 unsigned long lock_flags = 0; 4295 4296 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4297 4298 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4299 res = (struct ipr_resource_entry *) sdev->hostdata; 4300 if (res) { 4301 if (res->sata_port) 4302 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; 4303 sdev->hostdata = NULL; 4304 res->sdev = NULL; 4305 res->sata_port = NULL; 4306 } 4307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4308} 4309 4310/** 4311 * ipr_slave_configure - Configure a SCSI device 4312 * @sdev: scsi device struct 4313 * 4314 * This function configures the specified scsi device. 4315 * 4316 * Return value: 4317 * 0 on success 4318 **/ 4319static int ipr_slave_configure(struct scsi_device *sdev) 4320{ 4321 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4322 struct ipr_resource_entry *res; 4323 struct ata_port *ap = NULL; 4324 unsigned long lock_flags = 0; 4325 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4326 4327 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4328 res = sdev->hostdata; 4329 if (res) { 4330 if (ipr_is_af_dasd_device(res)) 4331 sdev->type = TYPE_RAID; 4332 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4333 sdev->scsi_level = 4; 4334 sdev->no_uld_attach = 1; 4335 } 4336 if (ipr_is_vset_device(res)) { 4337 blk_queue_rq_timeout(sdev->request_queue, 4338 IPR_VSET_RW_TIMEOUT); 4339 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4340 } 4341 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)) 4342 sdev->allow_restart = 1; 4343 if (ipr_is_gata(res) && res->sata_port) 4344 ap = res->sata_port->ap; 4345 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4346 4347 if (ap) { 4348 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 4349 ata_sas_slave_configure(sdev, ap); 4350 } else 4351 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 4352 if (ioa_cfg->sis64) 4353 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4354 ipr_format_resource_path(&res->res_path[0], &buffer[0])); 4355 return 0; 4356 } 4357 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4358 return 0; 4359} 4360 4361/** 4362 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4363 * @sdev: scsi device struct 4364 * 4365 * This function initializes an ATA port so that future commands 4366 * sent through queuecommand will work. 4367 * 4368 * Return value: 4369 * 0 on success 4370 **/ 4371static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4372{ 4373 struct ipr_sata_port *sata_port = NULL; 4374 int rc = -ENXIO; 4375 4376 ENTER; 4377 if (sdev->sdev_target) 4378 sata_port = sdev->sdev_target->hostdata; 4379 if (sata_port) 4380 rc = ata_sas_port_init(sata_port->ap); 4381 if (rc) 4382 ipr_slave_destroy(sdev); 4383 4384 LEAVE; 4385 return rc; 4386} 4387 4388/** 4389 * ipr_slave_alloc - Prepare for commands to a device. 4390 * @sdev: scsi device struct 4391 * 4392 * This function saves a pointer to the resource entry 4393 * in the scsi device struct if the device exists. We 4394 * can then use this pointer in ipr_queuecommand when 4395 * handling new commands. 4396 * 4397 * Return value: 4398 * 0 on success / -ENXIO if device does not exist 4399 **/ 4400static int ipr_slave_alloc(struct scsi_device *sdev) 4401{ 4402 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4403 struct ipr_resource_entry *res; 4404 unsigned long lock_flags; 4405 int rc = -ENXIO; 4406 4407 sdev->hostdata = NULL; 4408 4409 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4410 4411 res = ipr_find_sdev(sdev); 4412 if (res) { 4413 res->sdev = sdev; 4414 res->add_to_ml = 0; 4415 res->in_erp = 0; 4416 sdev->hostdata = res; 4417 if (!ipr_is_naca_model(res)) 4418 res->needs_sync_complete = 1; 4419 rc = 0; 4420 if (ipr_is_gata(res)) { 4421 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4422 return ipr_ata_slave_alloc(sdev); 4423 } 4424 } 4425 4426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4427 4428 return rc; 4429} 4430 4431/** 4432 * ipr_eh_host_reset - Reset the host adapter 4433 * @scsi_cmd: scsi command struct 4434 * 4435 * Return value: 4436 * SUCCESS / FAILED 4437 **/ 4438static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 4439{ 4440 struct ipr_ioa_cfg *ioa_cfg; 4441 int rc; 4442 4443 ENTER; 4444 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4445 4446 dev_err(&ioa_cfg->pdev->dev, 4447 "Adapter being reset as a result of error recovery.\n"); 4448 4449 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4450 ioa_cfg->sdt_state = GET_DUMP; 4451 4452 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 4453 4454 LEAVE; 4455 return rc; 4456} 4457 4458static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 4459{ 4460 int rc; 4461 4462 spin_lock_irq(cmd->device->host->host_lock); 4463 rc = __ipr_eh_host_reset(cmd); 4464 spin_unlock_irq(cmd->device->host->host_lock); 4465 4466 return rc; 4467} 4468 4469/** 4470 * ipr_device_reset - Reset the device 4471 * @ioa_cfg: ioa config struct 4472 * @res: resource entry struct 4473 * 4474 * This function issues a device reset to the affected device. 4475 * If the device is a SCSI device, a LUN reset will be sent 4476 * to the device first. If that does not work, a target reset 4477 * will be sent. If the device is a SATA device, a PHY reset will 4478 * be sent. 4479 * 4480 * Return value: 4481 * 0 on success / non-zero on failure 4482 **/ 4483static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 4484 struct ipr_resource_entry *res) 4485{ 4486 struct ipr_cmnd *ipr_cmd; 4487 struct ipr_ioarcb *ioarcb; 4488 struct ipr_cmd_pkt *cmd_pkt; 4489 struct ipr_ioarcb_ata_regs *regs; 4490 u32 ioasc; 4491 4492 ENTER; 4493 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4494 ioarcb = &ipr_cmd->ioarcb; 4495 cmd_pkt = &ioarcb->cmd_pkt; 4496 4497 if (ipr_cmd->ioa_cfg->sis64) { 4498 regs = &ipr_cmd->i.ata_ioadl.regs; 4499 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 4500 } else 4501 regs = &ioarcb->u.add_data.u.regs; 4502 4503 ioarcb->res_handle = res->res_handle; 4504 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4505 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4506 if (ipr_is_gata(res)) { 4507 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 4508 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 4509 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 4510 } 4511 4512 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4513 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4514 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4515 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { 4516 if (ipr_cmd->ioa_cfg->sis64) 4517 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 4518 sizeof(struct ipr_ioasa_gata)); 4519 else 4520 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 4521 sizeof(struct ipr_ioasa_gata)); 4522 } 4523 4524 LEAVE; 4525 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 4526} 4527 4528/** 4529 * ipr_sata_reset - Reset the SATA port 4530 * @link: SATA link to reset 4531 * @classes: class of the attached device 4532 * 4533 * This function issues a SATA phy reset to the affected ATA link. 4534 * 4535 * Return value: 4536 * 0 on success / non-zero on failure 4537 **/ 4538static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 4539 unsigned long deadline) 4540{ 4541 struct ipr_sata_port *sata_port = link->ap->private_data; 4542 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4543 struct ipr_resource_entry *res; 4544 unsigned long lock_flags = 0; 4545 int rc = -ENXIO; 4546 4547 ENTER; 4548 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4549 while(ioa_cfg->in_reset_reload) { 4550 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4551 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4552 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4553 } 4554 4555 res = sata_port->res; 4556 if (res) { 4557 rc = ipr_device_reset(ioa_cfg, res); 4558 *classes = res->ata_class; 4559 } 4560 4561 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4562 LEAVE; 4563 return rc; 4564} 4565 4566/** 4567 * ipr_eh_dev_reset - Reset the device 4568 * @scsi_cmd: scsi command struct 4569 * 4570 * This function issues a device reset to the affected device. 4571 * A LUN reset will be sent to the device first. If that does 4572 * not work, a target reset will be sent. 4573 * 4574 * Return value: 4575 * SUCCESS / FAILED 4576 **/ 4577static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 4578{ 4579 struct ipr_cmnd *ipr_cmd; 4580 struct ipr_ioa_cfg *ioa_cfg; 4581 struct ipr_resource_entry *res; 4582 struct ata_port *ap; 4583 int rc = 0; 4584 4585 ENTER; 4586 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4587 res = scsi_cmd->device->hostdata; 4588 4589 if (!res) 4590 return FAILED; 4591 4592 /* 4593 * If we are currently going through reset/reload, return failed. This will force the 4594 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 4595 * reset to complete 4596 */ 4597 if (ioa_cfg->in_reset_reload) 4598 return FAILED; 4599 if (ioa_cfg->ioa_is_dead) 4600 return FAILED; 4601 4602 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4603 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4604 if (ipr_cmd->scsi_cmd) 4605 ipr_cmd->done = ipr_scsi_eh_done; 4606 if (ipr_cmd->qc) 4607 ipr_cmd->done = ipr_sata_eh_done; 4608 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 4609 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 4610 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 4611 } 4612 } 4613 } 4614 4615 res->resetting_device = 1; 4616 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 4617 4618 if (ipr_is_gata(res) && res->sata_port) { 4619 ap = res->sata_port->ap; 4620 spin_unlock_irq(scsi_cmd->device->host->host_lock); 4621 ata_std_error_handler(ap); 4622 spin_lock_irq(scsi_cmd->device->host->host_lock); 4623 4624 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4625 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4626 rc = -EIO; 4627 break; 4628 } 4629 } 4630 } else 4631 rc = ipr_device_reset(ioa_cfg, res); 4632 res->resetting_device = 0; 4633 4634 LEAVE; 4635 return (rc ? FAILED : SUCCESS); 4636} 4637 4638static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 4639{ 4640 int rc; 4641 4642 spin_lock_irq(cmd->device->host->host_lock); 4643 rc = __ipr_eh_dev_reset(cmd); 4644 spin_unlock_irq(cmd->device->host->host_lock); 4645 4646 return rc; 4647} 4648 4649/** 4650 * ipr_bus_reset_done - Op done function for bus reset. 4651 * @ipr_cmd: ipr command struct 4652 * 4653 * This function is the op done function for a bus reset 4654 * 4655 * Return value: 4656 * none 4657 **/ 4658static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 4659{ 4660 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4661 struct ipr_resource_entry *res; 4662 4663 ENTER; 4664 if (!ioa_cfg->sis64) 4665 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4666 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 4667 scsi_report_bus_reset(ioa_cfg->host, res->bus); 4668 break; 4669 } 4670 } 4671 4672 /* 4673 * If abort has not completed, indicate the reset has, else call the 4674 * abort's done function to wake the sleeping eh thread 4675 */ 4676 if (ipr_cmd->sibling->sibling) 4677 ipr_cmd->sibling->sibling = NULL; 4678 else 4679 ipr_cmd->sibling->done(ipr_cmd->sibling); 4680 4681 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4682 LEAVE; 4683} 4684 4685/** 4686 * ipr_abort_timeout - An abort task has timed out 4687 * @ipr_cmd: ipr command struct 4688 * 4689 * This function handles when an abort task times out. If this 4690 * happens we issue a bus reset since we have resources tied 4691 * up that must be freed before returning to the midlayer. 4692 * 4693 * Return value: 4694 * none 4695 **/ 4696static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4697{ 4698 struct ipr_cmnd *reset_cmd; 4699 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4700 struct ipr_cmd_pkt *cmd_pkt; 4701 unsigned long lock_flags = 0; 4702 4703 ENTER; 4704 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4705 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4706 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4707 return; 4708 } 4709 4710 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4711 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4712 ipr_cmd->sibling = reset_cmd; 4713 reset_cmd->sibling = ipr_cmd; 4714 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4715 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4716 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4717 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4718 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4719 4720 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4721 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4722 LEAVE; 4723} 4724 4725/** 4726 * ipr_cancel_op - Cancel specified op 4727 * @scsi_cmd: scsi command struct 4728 * 4729 * This function cancels specified op. 4730 * 4731 * Return value: 4732 * SUCCESS / FAILED 4733 **/ 4734static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4735{ 4736 struct ipr_cmnd *ipr_cmd; 4737 struct ipr_ioa_cfg *ioa_cfg; 4738 struct ipr_resource_entry *res; 4739 struct ipr_cmd_pkt *cmd_pkt; 4740 u32 ioasc; 4741 int op_found = 0; 4742 4743 ENTER; 4744 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4745 res = scsi_cmd->device->hostdata; 4746 4747 /* If we are currently going through reset/reload, return failed. 4748 * This will force the mid-layer to call ipr_eh_host_reset, 4749 * which will then go to sleep and wait for the reset to complete 4750 */ 4751 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4752 return FAILED; 4753 if (!res || !ipr_is_gscsi(res)) 4754 return FAILED; 4755 4756 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4757 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4758 ipr_cmd->done = ipr_scsi_eh_done; 4759 op_found = 1; 4760 break; 4761 } 4762 } 4763 4764 if (!op_found) 4765 return SUCCESS; 4766 4767 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4768 ipr_cmd->ioarcb.res_handle = res->res_handle; 4769 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4770 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4771 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4772 ipr_cmd->u.sdev = scsi_cmd->device; 4773 4774 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4775 scsi_cmd->cmnd[0]); 4776 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4777 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4778 4779 /* 4780 * If the abort task timed out and we sent a bus reset, we will get 4781 * one the following responses to the abort 4782 */ 4783 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4784 ioasc = 0; 4785 ipr_trace; 4786 } 4787 4788 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4789 if (!ipr_is_naca_model(res)) 4790 res->needs_sync_complete = 1; 4791 4792 LEAVE; 4793 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4794} 4795 4796/** 4797 * ipr_eh_abort - Abort a single op 4798 * @scsi_cmd: scsi command struct 4799 * 4800 * Return value: 4801 * SUCCESS / FAILED 4802 **/ 4803static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4804{ 4805 unsigned long flags; 4806 int rc; 4807 4808 ENTER; 4809 4810 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4811 rc = ipr_cancel_op(scsi_cmd); 4812 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4813 4814 LEAVE; 4815 return rc; 4816} 4817 4818/** 4819 * ipr_handle_other_interrupt - Handle "other" interrupts 4820 * @ioa_cfg: ioa config struct 4821 * @int_reg: interrupt register 4822 * 4823 * Return value: 4824 * IRQ_NONE / IRQ_HANDLED 4825 **/ 4826static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4827 volatile u32 int_reg) 4828{ 4829 irqreturn_t rc = IRQ_HANDLED; 4830 4831 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4832 /* Mask the interrupt */ 4833 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4834 4835 /* Clear the interrupt */ 4836 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4837 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4838 4839 list_del(&ioa_cfg->reset_cmd->queue); 4840 del_timer(&ioa_cfg->reset_cmd->timer); 4841 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4842 } else { 4843 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4844 ioa_cfg->ioa_unit_checked = 1; 4845 else 4846 dev_err(&ioa_cfg->pdev->dev, 4847 "Permanent IOA failure. 0x%08X\n", int_reg); 4848 4849 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4850 ioa_cfg->sdt_state = GET_DUMP; 4851 4852 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4853 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4854 } 4855 4856 return rc; 4857} 4858 4859/** 4860 * ipr_isr_eh - Interrupt service routine error handler 4861 * @ioa_cfg: ioa config struct 4862 * @msg: message to log 4863 * 4864 * Return value: 4865 * none 4866 **/ 4867static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) 4868{ 4869 ioa_cfg->errors_logged++; 4870 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); 4871 4872 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4873 ioa_cfg->sdt_state = GET_DUMP; 4874 4875 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4876} 4877 4878/** 4879 * ipr_isr - Interrupt service routine 4880 * @irq: irq number 4881 * @devp: pointer to ioa config struct 4882 * 4883 * Return value: 4884 * IRQ_NONE / IRQ_HANDLED 4885 **/ 4886static irqreturn_t ipr_isr(int irq, void *devp) 4887{ 4888 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 4889 unsigned long lock_flags = 0; 4890 volatile u32 int_reg, int_mask_reg; 4891 u32 ioasc; 4892 u16 cmd_index; 4893 int num_hrrq = 0; 4894 struct ipr_cmnd *ipr_cmd; 4895 irqreturn_t rc = IRQ_NONE; 4896 4897 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4898 4899 /* If interrupts are disabled, ignore the interrupt */ 4900 if (!ioa_cfg->allow_interrupts) { 4901 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4902 return IRQ_NONE; 4903 } 4904 4905 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 4906 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 4907 4908 /* If an interrupt on the adapter did not occur, ignore it. 4909 * Or in the case of SIS 64, check for a stage change interrupt. 4910 */ 4911 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 4912 if (ioa_cfg->sis64) { 4913 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4914 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4915 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 4916 4917 /* clear stage change */ 4918 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 4919 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4920 list_del(&ioa_cfg->reset_cmd->queue); 4921 del_timer(&ioa_cfg->reset_cmd->timer); 4922 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4923 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4924 return IRQ_HANDLED; 4925 } 4926 } 4927 4928 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4929 return IRQ_NONE; 4930 } 4931 4932 while (1) { 4933 ipr_cmd = NULL; 4934 4935 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 4936 ioa_cfg->toggle_bit) { 4937 4938 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 4939 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 4940 4941 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 4942 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); 4943 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4944 return IRQ_HANDLED; 4945 } 4946 4947 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 4948 4949 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4950 4951 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 4952 4953 list_del(&ipr_cmd->queue); 4954 del_timer(&ipr_cmd->timer); 4955 ipr_cmd->done(ipr_cmd); 4956 4957 rc = IRQ_HANDLED; 4958 4959 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 4960 ioa_cfg->hrrq_curr++; 4961 } else { 4962 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 4963 ioa_cfg->toggle_bit ^= 1u; 4964 } 4965 } 4966 4967 if (ipr_cmd != NULL) { 4968 /* Clear the PCI interrupt */ 4969 do { 4970 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 4971 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 4972 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 4973 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 4974 4975 if (int_reg & IPR_PCII_HRRQ_UPDATED) { 4976 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); 4977 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4978 return IRQ_HANDLED; 4979 } 4980 4981 } else 4982 break; 4983 } 4984 4985 if (unlikely(rc == IRQ_NONE)) 4986 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 4987 4988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4989 return rc; 4990} 4991 4992/** 4993 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 4994 * @ioa_cfg: ioa config struct 4995 * @ipr_cmd: ipr command struct 4996 * 4997 * Return value: 4998 * 0 on success / -1 on failure 4999 **/ 5000static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 5001 struct ipr_cmnd *ipr_cmd) 5002{ 5003 int i, nseg; 5004 struct scatterlist *sg; 5005 u32 length; 5006 u32 ioadl_flags = 0; 5007 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5008 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5009 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5010 5011 length = scsi_bufflen(scsi_cmd); 5012 if (!length) 5013 return 0; 5014 5015 nseg = scsi_dma_map(scsi_cmd); 5016 if (nseg < 0) { 5017 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5018 return -1; 5019 } 5020 5021 ipr_cmd->dma_use_sg = nseg; 5022 5023 ioarcb->data_transfer_length = cpu_to_be32(length); 5024 5025 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5026 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5027 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5028 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5029 ioadl_flags = IPR_IOADL_FLAGS_READ; 5030 5031 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5032 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5033 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5034 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5035 } 5036 5037 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5038 return 0; 5039} 5040 5041/** 5042 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5043 * @ioa_cfg: ioa config struct 5044 * @ipr_cmd: ipr command struct 5045 * 5046 * Return value: 5047 * 0 on success / -1 on failure 5048 **/ 5049static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5050 struct ipr_cmnd *ipr_cmd) 5051{ 5052 int i, nseg; 5053 struct scatterlist *sg; 5054 u32 length; 5055 u32 ioadl_flags = 0; 5056 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5057 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5058 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5059 5060 length = scsi_bufflen(scsi_cmd); 5061 if (!length) 5062 return 0; 5063 5064 nseg = scsi_dma_map(scsi_cmd); 5065 if (nseg < 0) { 5066 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5067 return -1; 5068 } 5069 5070 ipr_cmd->dma_use_sg = nseg; 5071 5072 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5073 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5074 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5075 ioarcb->data_transfer_length = cpu_to_be32(length); 5076 ioarcb->ioadl_len = 5077 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5078 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5079 ioadl_flags = IPR_IOADL_FLAGS_READ; 5080 ioarcb->read_data_transfer_length = cpu_to_be32(length); 5081 ioarcb->read_ioadl_len = 5082 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5083 } 5084 5085 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 5086 ioadl = ioarcb->u.add_data.u.ioadl; 5087 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 5088 offsetof(struct ipr_ioarcb, u.add_data)); 5089 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5090 } 5091 5092 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5093 ioadl[i].flags_and_data_len = 5094 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5095 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 5096 } 5097 5098 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5099 return 0; 5100} 5101 5102/** 5103 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 5104 * @scsi_cmd: scsi command struct 5105 * 5106 * Return value: 5107 * task attributes 5108 **/ 5109static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 5110{ 5111 u8 tag[2]; 5112 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 5113 5114 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 5115 switch (tag[0]) { 5116 case MSG_SIMPLE_TAG: 5117 rc = IPR_FLAGS_LO_SIMPLE_TASK; 5118 break; 5119 case MSG_HEAD_TAG: 5120 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 5121 break; 5122 case MSG_ORDERED_TAG: 5123 rc = IPR_FLAGS_LO_ORDERED_TASK; 5124 break; 5125 }; 5126 } 5127 5128 return rc; 5129} 5130 5131/** 5132 * ipr_erp_done - Process completion of ERP for a device 5133 * @ipr_cmd: ipr command struct 5134 * 5135 * This function copies the sense buffer into the scsi_cmd 5136 * struct and pushes the scsi_done function. 5137 * 5138 * Return value: 5139 * nothing 5140 **/ 5141static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 5142{ 5143 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5144 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5145 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5146 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5147 5148 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5149 scsi_cmd->result |= (DID_ERROR << 16); 5150 scmd_printk(KERN_ERR, scsi_cmd, 5151 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 5152 } else { 5153 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 5154 SCSI_SENSE_BUFFERSIZE); 5155 } 5156 5157 if (res) { 5158 if (!ipr_is_naca_model(res)) 5159 res->needs_sync_complete = 1; 5160 res->in_erp = 0; 5161 } 5162 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5163 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5164 scsi_cmd->scsi_done(scsi_cmd); 5165} 5166 5167/** 5168 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 5169 * @ipr_cmd: ipr command struct 5170 * 5171 * Return value: 5172 * none 5173 **/ 5174static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 5175{ 5176 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5177 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5178 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5179 5180 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 5181 ioarcb->data_transfer_length = 0; 5182 ioarcb->read_data_transfer_length = 0; 5183 ioarcb->ioadl_len = 0; 5184 ioarcb->read_ioadl_len = 0; 5185 ioasa->hdr.ioasc = 0; 5186 ioasa->hdr.residual_data_len = 0; 5187 5188 if (ipr_cmd->ioa_cfg->sis64) 5189 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5190 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 5191 else { 5192 ioarcb->write_ioadl_addr = 5193 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 5194 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5195 } 5196} 5197 5198/** 5199 * ipr_erp_request_sense - Send request sense to a device 5200 * @ipr_cmd: ipr command struct 5201 * 5202 * This function sends a request sense to a device as a result 5203 * of a check condition. 5204 * 5205 * Return value: 5206 * nothing 5207 **/ 5208static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 5209{ 5210 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5211 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5212 5213 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5214 ipr_erp_done(ipr_cmd); 5215 return; 5216 } 5217 5218 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5219 5220 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 5221 cmd_pkt->cdb[0] = REQUEST_SENSE; 5222 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 5223 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 5224 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5225 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 5226 5227 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 5228 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 5229 5230 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 5231 IPR_REQUEST_SENSE_TIMEOUT * 2); 5232} 5233 5234/** 5235 * ipr_erp_cancel_all - Send cancel all to a device 5236 * @ipr_cmd: ipr command struct 5237 * 5238 * This function sends a cancel all to a device to clear the 5239 * queue. If we are running TCQ on the device, QERR is set to 1, 5240 * which means all outstanding ops have been dropped on the floor. 5241 * Cancel all will return them to us. 5242 * 5243 * Return value: 5244 * nothing 5245 **/ 5246static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 5247{ 5248 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5249 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5250 struct ipr_cmd_pkt *cmd_pkt; 5251 5252 res->in_erp = 1; 5253 5254 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5255 5256 if (!scsi_get_tag_type(scsi_cmd->device)) { 5257 ipr_erp_request_sense(ipr_cmd); 5258 return; 5259 } 5260 5261 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5262 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5263 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5264 5265 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 5266 IPR_CANCEL_ALL_TIMEOUT); 5267} 5268 5269/** 5270 * ipr_dump_ioasa - Dump contents of IOASA 5271 * @ioa_cfg: ioa config struct 5272 * @ipr_cmd: ipr command struct 5273 * @res: resource entry struct 5274 * 5275 * This function is invoked by the interrupt handler when ops 5276 * fail. It will log the IOASA if appropriate. Only called 5277 * for GPDD ops. 5278 * 5279 * Return value: 5280 * none 5281 **/ 5282static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 5283 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 5284{ 5285 int i; 5286 u16 data_len; 5287 u32 ioasc, fd_ioasc; 5288 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5289 __be32 *ioasa_data = (__be32 *)ioasa; 5290 int error_index; 5291 5292 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; 5293 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; 5294 5295 if (0 == ioasc) 5296 return; 5297 5298 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 5299 return; 5300 5301 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 5302 error_index = ipr_get_error(fd_ioasc); 5303 else 5304 error_index = ipr_get_error(ioasc); 5305 5306 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 5307 /* Don't log an error if the IOA already logged one */ 5308 if (ioasa->hdr.ilid != 0) 5309 return; 5310 5311 if (!ipr_is_gscsi(res)) 5312 return; 5313 5314 if (ipr_error_table[error_index].log_ioasa == 0) 5315 return; 5316 } 5317 5318 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 5319 5320 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); 5321 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) 5322 data_len = sizeof(struct ipr_ioasa64); 5323 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) 5324 data_len = sizeof(struct ipr_ioasa); 5325 5326 ipr_err("IOASA Dump:\n"); 5327 5328 for (i = 0; i < data_len / 4; i += 4) { 5329 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 5330 be32_to_cpu(ioasa_data[i]), 5331 be32_to_cpu(ioasa_data[i+1]), 5332 be32_to_cpu(ioasa_data[i+2]), 5333 be32_to_cpu(ioasa_data[i+3])); 5334 } 5335} 5336 5337/** 5338 * ipr_gen_sense - Generate SCSI sense data from an IOASA 5339 * @ioasa: IOASA 5340 * @sense_buf: sense data buffer 5341 * 5342 * Return value: 5343 * none 5344 **/ 5345static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 5346{ 5347 u32 failing_lba; 5348 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 5349 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 5350 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5351 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); 5352 5353 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 5354 5355 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 5356 return; 5357 5358 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 5359 5360 if (ipr_is_vset_device(res) && 5361 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 5362 ioasa->u.vset.failing_lba_hi != 0) { 5363 sense_buf[0] = 0x72; 5364 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 5365 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 5366 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 5367 5368 sense_buf[7] = 12; 5369 sense_buf[8] = 0; 5370 sense_buf[9] = 0x0A; 5371 sense_buf[10] = 0x80; 5372 5373 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 5374 5375 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 5376 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 5377 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 5378 sense_buf[15] = failing_lba & 0x000000ff; 5379 5380 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5381 5382 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 5383 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 5384 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 5385 sense_buf[19] = failing_lba & 0x000000ff; 5386 } else { 5387 sense_buf[0] = 0x70; 5388 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 5389 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 5390 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 5391 5392 /* Illegal request */ 5393 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 5394 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 5395 sense_buf[7] = 10; /* additional length */ 5396 5397 /* IOARCB was in error */ 5398 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 5399 sense_buf[15] = 0xC0; 5400 else /* Parameter data was invalid */ 5401 sense_buf[15] = 0x80; 5402 5403 sense_buf[16] = 5404 ((IPR_FIELD_POINTER_MASK & 5405 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; 5406 sense_buf[17] = 5407 (IPR_FIELD_POINTER_MASK & 5408 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; 5409 } else { 5410 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 5411 if (ipr_is_vset_device(res)) 5412 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5413 else 5414 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 5415 5416 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 5417 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 5418 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 5419 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 5420 sense_buf[6] = failing_lba & 0x000000ff; 5421 } 5422 5423 sense_buf[7] = 6; /* additional length */ 5424 } 5425 } 5426} 5427 5428/** 5429 * ipr_get_autosense - Copy autosense data to sense buffer 5430 * @ipr_cmd: ipr command struct 5431 * 5432 * This function copies the autosense buffer to the buffer 5433 * in the scsi_cmd, if there is autosense available. 5434 * 5435 * Return value: 5436 * 1 if autosense was available / 0 if not 5437 **/ 5438static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 5439{ 5440 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5441 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 5442 5443 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 5444 return 0; 5445 5446 if (ipr_cmd->ioa_cfg->sis64) 5447 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, 5448 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), 5449 SCSI_SENSE_BUFFERSIZE)); 5450 else 5451 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 5452 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 5453 SCSI_SENSE_BUFFERSIZE)); 5454 return 1; 5455} 5456 5457/** 5458 * ipr_erp_start - Process an error response for a SCSI op 5459 * @ioa_cfg: ioa config struct 5460 * @ipr_cmd: ipr command struct 5461 * 5462 * This function determines whether or not to initiate ERP 5463 * on the affected device. 5464 * 5465 * Return value: 5466 * nothing 5467 **/ 5468static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 5469 struct ipr_cmnd *ipr_cmd) 5470{ 5471 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5472 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5473 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5474 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 5475 5476 if (!res) { 5477 ipr_scsi_eh_done(ipr_cmd); 5478 return; 5479 } 5480 5481 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 5482 ipr_gen_sense(ipr_cmd); 5483 5484 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5485 5486 switch (masked_ioasc) { 5487 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 5488 if (ipr_is_naca_model(res)) 5489 scsi_cmd->result |= (DID_ABORT << 16); 5490 else 5491 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5492 break; 5493 case IPR_IOASC_IR_RESOURCE_HANDLE: 5494 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 5495 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5496 break; 5497 case IPR_IOASC_HW_SEL_TIMEOUT: 5498 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5499 if (!ipr_is_naca_model(res)) 5500 res->needs_sync_complete = 1; 5501 break; 5502 case IPR_IOASC_SYNC_REQUIRED: 5503 if (!res->in_erp) 5504 res->needs_sync_complete = 1; 5505 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5506 break; 5507 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 5508 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 5509 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 5510 break; 5511 case IPR_IOASC_BUS_WAS_RESET: 5512 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 5513 /* 5514 * Report the bus reset and ask for a retry. The device 5515 * will give CC/UA the next command. 5516 */ 5517 if (!res->resetting_device) 5518 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 5519 scsi_cmd->result |= (DID_ERROR << 16); 5520 if (!ipr_is_naca_model(res)) 5521 res->needs_sync_complete = 1; 5522 break; 5523 case IPR_IOASC_HW_DEV_BUS_STATUS: 5524 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 5525 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 5526 if (!ipr_get_autosense(ipr_cmd)) { 5527 if (!ipr_is_naca_model(res)) { 5528 ipr_erp_cancel_all(ipr_cmd); 5529 return; 5530 } 5531 } 5532 } 5533 if (!ipr_is_naca_model(res)) 5534 res->needs_sync_complete = 1; 5535 break; 5536 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 5537 break; 5538 default: 5539 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5540 scsi_cmd->result |= (DID_ERROR << 16); 5541 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 5542 res->needs_sync_complete = 1; 5543 break; 5544 } 5545 5546 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5547 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5548 scsi_cmd->scsi_done(scsi_cmd); 5549} 5550 5551/** 5552 * ipr_scsi_done - mid-layer done function 5553 * @ipr_cmd: ipr command struct 5554 * 5555 * This function is invoked by the interrupt handler for 5556 * ops generated by the SCSI mid-layer 5557 * 5558 * Return value: 5559 * none 5560 **/ 5561static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 5562{ 5563 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5564 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5565 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5566 5567 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); 5568 5569 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 5570 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5571 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5572 scsi_cmd->scsi_done(scsi_cmd); 5573 } else 5574 ipr_erp_start(ioa_cfg, ipr_cmd); 5575} 5576 5577/** 5578 * ipr_queuecommand - Queue a mid-layer request 5579 * @scsi_cmd: scsi command struct 5580 * @done: done function 5581 * 5582 * This function queues a request generated by the mid-layer. 5583 * 5584 * Return value: 5585 * 0 on success 5586 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 5587 * SCSI_MLQUEUE_HOST_BUSY if host is busy 5588 **/ 5589static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd, 5590 void (*done) (struct scsi_cmnd *)) 5591{ 5592 struct ipr_ioa_cfg *ioa_cfg; 5593 struct ipr_resource_entry *res; 5594 struct ipr_ioarcb *ioarcb; 5595 struct ipr_cmnd *ipr_cmd; 5596 int rc = 0; 5597 5598 scsi_cmd->scsi_done = done; 5599 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5600 res = scsi_cmd->device->hostdata; 5601 scsi_cmd->result = (DID_OK << 16); 5602 5603 /* 5604 * We are currently blocking all devices due to a host reset 5605 * We have told the host to stop giving us new requests, but 5606 * ERP ops don't count. FIXME 5607 */ 5608 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 5609 return SCSI_MLQUEUE_HOST_BUSY; 5610 5611 /* 5612 * FIXME - Create scsi_set_host_offline interface 5613 * and the ioa_is_dead check can be removed 5614 */ 5615 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 5616 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 5617 scsi_cmd->result = (DID_NO_CONNECT << 16); 5618 scsi_cmd->scsi_done(scsi_cmd); 5619 return 0; 5620 } 5621 5622 if (ipr_is_gata(res) && res->sata_port) 5623 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); 5624 5625 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5626 ioarcb = &ipr_cmd->ioarcb; 5627 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5628 5629 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 5630 ipr_cmd->scsi_cmd = scsi_cmd; 5631 ioarcb->res_handle = res->res_handle; 5632 ipr_cmd->done = ipr_scsi_done; 5633 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5634 5635 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 5636 if (scsi_cmd->underflow == 0) 5637 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5638 5639 if (res->needs_sync_complete) { 5640 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 5641 res->needs_sync_complete = 0; 5642 } 5643 5644 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5645 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 5646 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 5647 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 5648 } 5649 5650 if (scsi_cmd->cmnd[0] >= 0xC0 && 5651 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 5652 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5653 5654 if (likely(rc == 0)) { 5655 if (ioa_cfg->sis64) 5656 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 5657 else 5658 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 5659 } 5660 5661 if (likely(rc == 0)) { 5662 mb(); 5663 ipr_send_command(ipr_cmd); 5664 } else { 5665 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5666 return SCSI_MLQUEUE_HOST_BUSY; 5667 } 5668 5669 return 0; 5670} 5671 5672/** 5673 * ipr_ioctl - IOCTL handler 5674 * @sdev: scsi device struct 5675 * @cmd: IOCTL cmd 5676 * @arg: IOCTL arg 5677 * 5678 * Return value: 5679 * 0 on success / other on failure 5680 **/ 5681static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 5682{ 5683 struct ipr_resource_entry *res; 5684 5685 res = (struct ipr_resource_entry *)sdev->hostdata; 5686 if (res && ipr_is_gata(res)) { 5687 if (cmd == HDIO_GET_IDENTITY) 5688 return -ENOTTY; 5689 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 5690 } 5691 5692 return -EINVAL; 5693} 5694 5695/** 5696 * ipr_info - Get information about the card/driver 5697 * @scsi_host: scsi host struct 5698 * 5699 * Return value: 5700 * pointer to buffer with description string 5701 **/ 5702static const char * ipr_ioa_info(struct Scsi_Host *host) 5703{ 5704 static char buffer[512]; 5705 struct ipr_ioa_cfg *ioa_cfg; 5706 unsigned long lock_flags = 0; 5707 5708 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 5709 5710 spin_lock_irqsave(host->host_lock, lock_flags); 5711 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 5712 spin_unlock_irqrestore(host->host_lock, lock_flags); 5713 5714 return buffer; 5715} 5716 5717static struct scsi_host_template driver_template = { 5718 .module = THIS_MODULE, 5719 .name = "IPR", 5720 .info = ipr_ioa_info, 5721 .ioctl = ipr_ioctl, 5722 .queuecommand = ipr_queuecommand, 5723 .eh_abort_handler = ipr_eh_abort, 5724 .eh_device_reset_handler = ipr_eh_dev_reset, 5725 .eh_host_reset_handler = ipr_eh_host_reset, 5726 .slave_alloc = ipr_slave_alloc, 5727 .slave_configure = ipr_slave_configure, 5728 .slave_destroy = ipr_slave_destroy, 5729 .target_alloc = ipr_target_alloc, 5730 .target_destroy = ipr_target_destroy, 5731 .change_queue_depth = ipr_change_queue_depth, 5732 .change_queue_type = ipr_change_queue_type, 5733 .bios_param = ipr_biosparam, 5734 .can_queue = IPR_MAX_COMMANDS, 5735 .this_id = -1, 5736 .sg_tablesize = IPR_MAX_SGLIST, 5737 .max_sectors = IPR_IOA_MAX_SECTORS, 5738 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5739 .use_clustering = ENABLE_CLUSTERING, 5740 .shost_attrs = ipr_ioa_attrs, 5741 .sdev_attrs = ipr_dev_attrs, 5742 .proc_name = IPR_NAME 5743}; 5744 5745/** 5746 * ipr_ata_phy_reset - libata phy_reset handler 5747 * @ap: ata port to reset 5748 * 5749 **/ 5750static void ipr_ata_phy_reset(struct ata_port *ap) 5751{ 5752 unsigned long flags; 5753 struct ipr_sata_port *sata_port = ap->private_data; 5754 struct ipr_resource_entry *res = sata_port->res; 5755 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5756 int rc; 5757 5758 ENTER; 5759 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5760 while(ioa_cfg->in_reset_reload) { 5761 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5762 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5763 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5764 } 5765 5766 if (!ioa_cfg->allow_cmds) 5767 goto out_unlock; 5768 5769 rc = ipr_device_reset(ioa_cfg, res); 5770 5771 if (rc) { 5772 ap->link.device[0].class = ATA_DEV_NONE; 5773 goto out_unlock; 5774 } 5775 5776 ap->link.device[0].class = res->ata_class; 5777 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 5778 ap->link.device[0].class = ATA_DEV_NONE; 5779 5780out_unlock: 5781 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5782 LEAVE; 5783} 5784 5785/** 5786 * ipr_ata_post_internal - Cleanup after an internal command 5787 * @qc: ATA queued command 5788 * 5789 * Return value: 5790 * none 5791 **/ 5792static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5793{ 5794 struct ipr_sata_port *sata_port = qc->ap->private_data; 5795 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5796 struct ipr_cmnd *ipr_cmd; 5797 unsigned long flags; 5798 5799 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5800 while(ioa_cfg->in_reset_reload) { 5801 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5802 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5803 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5804 } 5805 5806 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5807 if (ipr_cmd->qc == qc) { 5808 ipr_device_reset(ioa_cfg, sata_port->res); 5809 break; 5810 } 5811 } 5812 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5813} 5814 5815/** 5816 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5817 * @regs: destination 5818 * @tf: source ATA taskfile 5819 * 5820 * Return value: 5821 * none 5822 **/ 5823static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5824 struct ata_taskfile *tf) 5825{ 5826 regs->feature = tf->feature; 5827 regs->nsect = tf->nsect; 5828 regs->lbal = tf->lbal; 5829 regs->lbam = tf->lbam; 5830 regs->lbah = tf->lbah; 5831 regs->device = tf->device; 5832 regs->command = tf->command; 5833 regs->hob_feature = tf->hob_feature; 5834 regs->hob_nsect = tf->hob_nsect; 5835 regs->hob_lbal = tf->hob_lbal; 5836 regs->hob_lbam = tf->hob_lbam; 5837 regs->hob_lbah = tf->hob_lbah; 5838 regs->ctl = tf->ctl; 5839} 5840 5841/** 5842 * ipr_sata_done - done function for SATA commands 5843 * @ipr_cmd: ipr command struct 5844 * 5845 * This function is invoked by the interrupt handler for 5846 * ops generated by the SCSI mid-layer to SATA devices 5847 * 5848 * Return value: 5849 * none 5850 **/ 5851static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5852{ 5853 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5854 struct ata_queued_cmd *qc = ipr_cmd->qc; 5855 struct ipr_sata_port *sata_port = qc->ap->private_data; 5856 struct ipr_resource_entry *res = sata_port->res; 5857 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5858 5859 if (ipr_cmd->ioa_cfg->sis64) 5860 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 5861 sizeof(struct ipr_ioasa_gata)); 5862 else 5863 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 5864 sizeof(struct ipr_ioasa_gata)); 5865 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5866 5867 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5868 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 5869 5870 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5871 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); 5872 else 5873 qc->err_mask |= ac_err_mask(sata_port->ioasa.status); 5874 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5875 ata_qc_complete(qc); 5876} 5877 5878/** 5879 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 5880 * @ipr_cmd: ipr command struct 5881 * @qc: ATA queued command 5882 * 5883 **/ 5884static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 5885 struct ata_queued_cmd *qc) 5886{ 5887 u32 ioadl_flags = 0; 5888 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5889 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5890 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 5891 int len = qc->nbytes; 5892 struct scatterlist *sg; 5893 unsigned int si; 5894 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5895 5896 if (len == 0) 5897 return; 5898 5899 if (qc->dma_dir == DMA_TO_DEVICE) { 5900 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5901 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5902 } else if (qc->dma_dir == DMA_FROM_DEVICE) 5903 ioadl_flags = IPR_IOADL_FLAGS_READ; 5904 5905 ioarcb->data_transfer_length = cpu_to_be32(len); 5906 ioarcb->ioadl_len = 5907 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5908 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5909 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); 5910 5911 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5912 ioadl64->flags = cpu_to_be32(ioadl_flags); 5913 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 5914 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 5915 5916 last_ioadl64 = ioadl64; 5917 ioadl64++; 5918 } 5919 5920 if (likely(last_ioadl64)) 5921 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5922} 5923 5924/** 5925 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 5926 * @ipr_cmd: ipr command struct 5927 * @qc: ATA queued command 5928 * 5929 **/ 5930static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 5931 struct ata_queued_cmd *qc) 5932{ 5933 u32 ioadl_flags = 0; 5934 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5935 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5936 struct ipr_ioadl_desc *last_ioadl = NULL; 5937 int len = qc->nbytes; 5938 struct scatterlist *sg; 5939 unsigned int si; 5940 5941 if (len == 0) 5942 return; 5943 5944 if (qc->dma_dir == DMA_TO_DEVICE) { 5945 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5946 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5947 ioarcb->data_transfer_length = cpu_to_be32(len); 5948 ioarcb->ioadl_len = 5949 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5950 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 5951 ioadl_flags = IPR_IOADL_FLAGS_READ; 5952 ioarcb->read_data_transfer_length = cpu_to_be32(len); 5953 ioarcb->read_ioadl_len = 5954 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5955 } 5956 5957 for_each_sg(qc->sg, sg, qc->n_elem, si) { 5958 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5959 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 5960 5961 last_ioadl = ioadl; 5962 ioadl++; 5963 } 5964 5965 if (likely(last_ioadl)) 5966 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5967} 5968 5969/** 5970 * ipr_qc_issue - Issue a SATA qc to a device 5971 * @qc: queued command 5972 * 5973 * Return value: 5974 * 0 if success 5975 **/ 5976static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 5977{ 5978 struct ata_port *ap = qc->ap; 5979 struct ipr_sata_port *sata_port = ap->private_data; 5980 struct ipr_resource_entry *res = sata_port->res; 5981 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5982 struct ipr_cmnd *ipr_cmd; 5983 struct ipr_ioarcb *ioarcb; 5984 struct ipr_ioarcb_ata_regs *regs; 5985 5986 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 5987 return AC_ERR_SYSTEM; 5988 5989 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5990 ioarcb = &ipr_cmd->ioarcb; 5991 5992 if (ioa_cfg->sis64) { 5993 regs = &ipr_cmd->i.ata_ioadl.regs; 5994 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 5995 } else 5996 regs = &ioarcb->u.add_data.u.regs; 5997 5998 memset(regs, 0, sizeof(*regs)); 5999 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 6000 6001 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6002 ipr_cmd->qc = qc; 6003 ipr_cmd->done = ipr_sata_done; 6004 ipr_cmd->ioarcb.res_handle = res->res_handle; 6005 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 6006 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 6007 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 6008 ipr_cmd->dma_use_sg = qc->n_elem; 6009 6010 if (ioa_cfg->sis64) 6011 ipr_build_ata_ioadl64(ipr_cmd, qc); 6012 else 6013 ipr_build_ata_ioadl(ipr_cmd, qc); 6014 6015 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 6016 ipr_copy_sata_tf(regs, &qc->tf); 6017 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 6018 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 6019 6020 switch (qc->tf.protocol) { 6021 case ATA_PROT_NODATA: 6022 case ATA_PROT_PIO: 6023 break; 6024 6025 case ATA_PROT_DMA: 6026 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6027 break; 6028 6029 case ATAPI_PROT_PIO: 6030 case ATAPI_PROT_NODATA: 6031 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6032 break; 6033 6034 case ATAPI_PROT_DMA: 6035 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6036 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6037 break; 6038 6039 default: 6040 WARN_ON(1); 6041 return AC_ERR_INVALID; 6042 } 6043 6044 mb(); 6045 6046 ipr_send_command(ipr_cmd); 6047 6048 return 0; 6049} 6050 6051/** 6052 * ipr_qc_fill_rtf - Read result TF 6053 * @qc: ATA queued command 6054 * 6055 * Return value: 6056 * true 6057 **/ 6058static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 6059{ 6060 struct ipr_sata_port *sata_port = qc->ap->private_data; 6061 struct ipr_ioasa_gata *g = &sata_port->ioasa; 6062 struct ata_taskfile *tf = &qc->result_tf; 6063 6064 tf->feature = g->error; 6065 tf->nsect = g->nsect; 6066 tf->lbal = g->lbal; 6067 tf->lbam = g->lbam; 6068 tf->lbah = g->lbah; 6069 tf->device = g->device; 6070 tf->command = g->status; 6071 tf->hob_nsect = g->hob_nsect; 6072 tf->hob_lbal = g->hob_lbal; 6073 tf->hob_lbam = g->hob_lbam; 6074 tf->hob_lbah = g->hob_lbah; 6075 tf->ctl = g->alt_status; 6076 6077 return true; 6078} 6079 6080static struct ata_port_operations ipr_sata_ops = { 6081 .phy_reset = ipr_ata_phy_reset, 6082 .hardreset = ipr_sata_reset, 6083 .post_internal_cmd = ipr_ata_post_internal, 6084 .qc_prep = ata_noop_qc_prep, 6085 .qc_issue = ipr_qc_issue, 6086 .qc_fill_rtf = ipr_qc_fill_rtf, 6087 .port_start = ata_sas_port_start, 6088 .port_stop = ata_sas_port_stop 6089}; 6090 6091static struct ata_port_info sata_port_info = { 6092 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | 6093 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, 6094 .pio_mask = 0x10, /* pio4 */ 6095 .mwdma_mask = 0x07, 6096 .udma_mask = 0x7f, /* udma0-6 */ 6097 .port_ops = &ipr_sata_ops 6098}; 6099 6100#ifdef CONFIG_PPC_PSERIES 6101static const u16 ipr_blocked_processors[] = { 6102 PV_NORTHSTAR, 6103 PV_PULSAR, 6104 PV_POWER4, 6105 PV_ICESTAR, 6106 PV_SSTAR, 6107 PV_POWER4p, 6108 PV_630, 6109 PV_630p 6110}; 6111 6112/** 6113 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 6114 * @ioa_cfg: ioa cfg struct 6115 * 6116 * Adapters that use Gemstone revision < 3.1 do not work reliably on 6117 * certain pSeries hardware. This function determines if the given 6118 * adapter is in one of these confgurations or not. 6119 * 6120 * Return value: 6121 * 1 if adapter is not supported / 0 if adapter is supported 6122 **/ 6123static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 6124{ 6125 int i; 6126 6127 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 6128 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 6129 if (__is_processor(ipr_blocked_processors[i])) 6130 return 1; 6131 } 6132 } 6133 return 0; 6134} 6135#else 6136#define ipr_invalid_adapter(ioa_cfg) 0 6137#endif 6138 6139/** 6140 * ipr_ioa_bringdown_done - IOA bring down completion. 6141 * @ipr_cmd: ipr command struct 6142 * 6143 * This function processes the completion of an adapter bring down. 6144 * It wakes any reset sleepers. 6145 * 6146 * Return value: 6147 * IPR_RC_JOB_RETURN 6148 **/ 6149static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 6150{ 6151 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6152 6153 ENTER; 6154 ioa_cfg->in_reset_reload = 0; 6155 ioa_cfg->reset_retries = 0; 6156 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6157 wake_up_all(&ioa_cfg->reset_wait_q); 6158 6159 spin_unlock_irq(ioa_cfg->host->host_lock); 6160 scsi_unblock_requests(ioa_cfg->host); 6161 spin_lock_irq(ioa_cfg->host->host_lock); 6162 LEAVE; 6163 6164 return IPR_RC_JOB_RETURN; 6165} 6166 6167/** 6168 * ipr_ioa_reset_done - IOA reset completion. 6169 * @ipr_cmd: ipr command struct 6170 * 6171 * This function processes the completion of an adapter reset. 6172 * It schedules any necessary mid-layer add/removes and 6173 * wakes any reset sleepers. 6174 * 6175 * Return value: 6176 * IPR_RC_JOB_RETURN 6177 **/ 6178static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 6179{ 6180 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6181 struct ipr_resource_entry *res; 6182 struct ipr_hostrcb *hostrcb, *temp; 6183 int i = 0; 6184 6185 ENTER; 6186 ioa_cfg->in_reset_reload = 0; 6187 ioa_cfg->allow_cmds = 1; 6188 ioa_cfg->reset_cmd = NULL; 6189 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 6190 6191 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 6192 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 6193 ipr_trace; 6194 break; 6195 } 6196 } 6197 schedule_work(&ioa_cfg->work_q); 6198 6199 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 6200 list_del(&hostrcb->queue); 6201 if (i++ < IPR_NUM_LOG_HCAMS) 6202 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 6203 else 6204 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 6205 } 6206 6207 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 6208 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 6209 6210 ioa_cfg->reset_retries = 0; 6211 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6212 wake_up_all(&ioa_cfg->reset_wait_q); 6213 6214 spin_unlock(ioa_cfg->host->host_lock); 6215 scsi_unblock_requests(ioa_cfg->host); 6216 spin_lock(ioa_cfg->host->host_lock); 6217 6218 if (!ioa_cfg->allow_cmds) 6219 scsi_block_requests(ioa_cfg->host); 6220 6221 LEAVE; 6222 return IPR_RC_JOB_RETURN; 6223} 6224 6225/** 6226 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 6227 * @supported_dev: supported device struct 6228 * @vpids: vendor product id struct 6229 * 6230 * Return value: 6231 * none 6232 **/ 6233static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 6234 struct ipr_std_inq_vpids *vpids) 6235{ 6236 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 6237 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 6238 supported_dev->num_records = 1; 6239 supported_dev->data_length = 6240 cpu_to_be16(sizeof(struct ipr_supported_device)); 6241 supported_dev->reserved = 0; 6242} 6243 6244/** 6245 * ipr_set_supported_devs - Send Set Supported Devices for a device 6246 * @ipr_cmd: ipr command struct 6247 * 6248 * This function sends a Set Supported Devices to the adapter 6249 * 6250 * Return value: 6251 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6252 **/ 6253static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 6254{ 6255 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6256 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 6257 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6258 struct ipr_resource_entry *res = ipr_cmd->u.res; 6259 6260 ipr_cmd->job_step = ipr_ioa_reset_done; 6261 6262 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 6263 if (!ipr_is_scsi_disk(res)) 6264 continue; 6265 6266 ipr_cmd->u.res = res; 6267 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 6268 6269 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6270 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6271 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6272 6273 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 6274 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 6275 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 6276 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 6277 6278 ipr_init_ioadl(ipr_cmd, 6279 ioa_cfg->vpd_cbs_dma + 6280 offsetof(struct ipr_misc_cbs, supp_dev), 6281 sizeof(struct ipr_supported_device), 6282 IPR_IOADL_FLAGS_WRITE_LAST); 6283 6284 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6285 IPR_SET_SUP_DEVICE_TIMEOUT); 6286 6287 if (!ioa_cfg->sis64) 6288 ipr_cmd->job_step = ipr_set_supported_devs; 6289 return IPR_RC_JOB_RETURN; 6290 } 6291 6292 return IPR_RC_JOB_CONTINUE; 6293} 6294 6295/** 6296 * ipr_get_mode_page - Locate specified mode page 6297 * @mode_pages: mode page buffer 6298 * @page_code: page code to find 6299 * @len: minimum required length for mode page 6300 * 6301 * Return value: 6302 * pointer to mode page / NULL on failure 6303 **/ 6304static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 6305 u32 page_code, u32 len) 6306{ 6307 struct ipr_mode_page_hdr *mode_hdr; 6308 u32 page_length; 6309 u32 length; 6310 6311 if (!mode_pages || (mode_pages->hdr.length == 0)) 6312 return NULL; 6313 6314 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 6315 mode_hdr = (struct ipr_mode_page_hdr *) 6316 (mode_pages->data + mode_pages->hdr.block_desc_len); 6317 6318 while (length) { 6319 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 6320 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 6321 return mode_hdr; 6322 break; 6323 } else { 6324 page_length = (sizeof(struct ipr_mode_page_hdr) + 6325 mode_hdr->page_length); 6326 length -= page_length; 6327 mode_hdr = (struct ipr_mode_page_hdr *) 6328 ((unsigned long)mode_hdr + page_length); 6329 } 6330 } 6331 return NULL; 6332} 6333 6334/** 6335 * ipr_check_term_power - Check for term power errors 6336 * @ioa_cfg: ioa config struct 6337 * @mode_pages: IOAFP mode pages buffer 6338 * 6339 * Check the IOAFP's mode page 28 for term power errors 6340 * 6341 * Return value: 6342 * nothing 6343 **/ 6344static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 6345 struct ipr_mode_pages *mode_pages) 6346{ 6347 int i; 6348 int entry_length; 6349 struct ipr_dev_bus_entry *bus; 6350 struct ipr_mode_page28 *mode_page; 6351 6352 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6353 sizeof(struct ipr_mode_page28)); 6354 6355 entry_length = mode_page->entry_length; 6356 6357 bus = mode_page->bus; 6358 6359 for (i = 0; i < mode_page->num_entries; i++) { 6360 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 6361 dev_err(&ioa_cfg->pdev->dev, 6362 "Term power is absent on scsi bus %d\n", 6363 bus->res_addr.bus); 6364 } 6365 6366 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 6367 } 6368} 6369 6370/** 6371 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 6372 * @ioa_cfg: ioa config struct 6373 * 6374 * Looks through the config table checking for SES devices. If 6375 * the SES device is in the SES table indicating a maximum SCSI 6376 * bus speed, the speed is limited for the bus. 6377 * 6378 * Return value: 6379 * none 6380 **/ 6381static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 6382{ 6383 u32 max_xfer_rate; 6384 int i; 6385 6386 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 6387 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 6388 ioa_cfg->bus_attr[i].bus_width); 6389 6390 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 6391 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 6392 } 6393} 6394 6395/** 6396 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 6397 * @ioa_cfg: ioa config struct 6398 * @mode_pages: mode page 28 buffer 6399 * 6400 * Updates mode page 28 based on driver configuration 6401 * 6402 * Return value: 6403 * none 6404 **/ 6405static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 6406 struct ipr_mode_pages *mode_pages) 6407{ 6408 int i, entry_length; 6409 struct ipr_dev_bus_entry *bus; 6410 struct ipr_bus_attributes *bus_attr; 6411 struct ipr_mode_page28 *mode_page; 6412 6413 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6414 sizeof(struct ipr_mode_page28)); 6415 6416 entry_length = mode_page->entry_length; 6417 6418 /* Loop for each device bus entry */ 6419 for (i = 0, bus = mode_page->bus; 6420 i < mode_page->num_entries; 6421 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 6422 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 6423 dev_err(&ioa_cfg->pdev->dev, 6424 "Invalid resource address reported: 0x%08X\n", 6425 IPR_GET_PHYS_LOC(bus->res_addr)); 6426 continue; 6427 } 6428 6429 bus_attr = &ioa_cfg->bus_attr[i]; 6430 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 6431 bus->bus_width = bus_attr->bus_width; 6432 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 6433 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 6434 if (bus_attr->qas_enabled) 6435 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 6436 else 6437 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 6438 } 6439} 6440 6441/** 6442 * ipr_build_mode_select - Build a mode select command 6443 * @ipr_cmd: ipr command struct 6444 * @res_handle: resource handle to send command to 6445 * @parm: Byte 2 of Mode Sense command 6446 * @dma_addr: DMA buffer address 6447 * @xfer_len: data transfer length 6448 * 6449 * Return value: 6450 * none 6451 **/ 6452static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 6453 __be32 res_handle, u8 parm, 6454 dma_addr_t dma_addr, u8 xfer_len) 6455{ 6456 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6457 6458 ioarcb->res_handle = res_handle; 6459 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6460 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6461 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 6462 ioarcb->cmd_pkt.cdb[1] = parm; 6463 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6464 6465 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 6466} 6467 6468/** 6469 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 6470 * @ipr_cmd: ipr command struct 6471 * 6472 * This function sets up the SCSI bus attributes and sends 6473 * a Mode Select for Page 28 to activate them. 6474 * 6475 * Return value: 6476 * IPR_RC_JOB_RETURN 6477 **/ 6478static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 6479{ 6480 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6481 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6482 int length; 6483 6484 ENTER; 6485 ipr_scsi_bus_speed_limit(ioa_cfg); 6486 ipr_check_term_power(ioa_cfg, mode_pages); 6487 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 6488 length = mode_pages->hdr.length + 1; 6489 mode_pages->hdr.length = 0; 6490 6491 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6492 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6493 length); 6494 6495 ipr_cmd->job_step = ipr_set_supported_devs; 6496 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6497 struct ipr_resource_entry, queue); 6498 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6499 6500 LEAVE; 6501 return IPR_RC_JOB_RETURN; 6502} 6503 6504/** 6505 * ipr_build_mode_sense - Builds a mode sense command 6506 * @ipr_cmd: ipr command struct 6507 * @res: resource entry struct 6508 * @parm: Byte 2 of mode sense command 6509 * @dma_addr: DMA address of mode sense buffer 6510 * @xfer_len: Size of DMA buffer 6511 * 6512 * Return value: 6513 * none 6514 **/ 6515static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 6516 __be32 res_handle, 6517 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 6518{ 6519 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6520 6521 ioarcb->res_handle = res_handle; 6522 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 6523 ioarcb->cmd_pkt.cdb[2] = parm; 6524 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6525 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6526 6527 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6528} 6529 6530/** 6531 * ipr_reset_cmd_failed - Handle failure of IOA reset command 6532 * @ipr_cmd: ipr command struct 6533 * 6534 * This function handles the failure of an IOA bringup command. 6535 * 6536 * Return value: 6537 * IPR_RC_JOB_RETURN 6538 **/ 6539static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 6540{ 6541 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6542 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6543 6544 dev_err(&ioa_cfg->pdev->dev, 6545 "0x%02X failed with IOASC: 0x%08X\n", 6546 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 6547 6548 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6549 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6550 return IPR_RC_JOB_RETURN; 6551} 6552 6553/** 6554 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 6555 * @ipr_cmd: ipr command struct 6556 * 6557 * This function handles the failure of a Mode Sense to the IOAFP. 6558 * Some adapters do not handle all mode pages. 6559 * 6560 * Return value: 6561 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6562 **/ 6563static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 6564{ 6565 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6566 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6567 6568 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6569 ipr_cmd->job_step = ipr_set_supported_devs; 6570 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6571 struct ipr_resource_entry, queue); 6572 return IPR_RC_JOB_CONTINUE; 6573 } 6574 6575 return ipr_reset_cmd_failed(ipr_cmd); 6576} 6577 6578/** 6579 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 6580 * @ipr_cmd: ipr command struct 6581 * 6582 * This function send a Page 28 mode sense to the IOA to 6583 * retrieve SCSI bus attributes. 6584 * 6585 * Return value: 6586 * IPR_RC_JOB_RETURN 6587 **/ 6588static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 6589{ 6590 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6591 6592 ENTER; 6593 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6594 0x28, ioa_cfg->vpd_cbs_dma + 6595 offsetof(struct ipr_misc_cbs, mode_pages), 6596 sizeof(struct ipr_mode_pages)); 6597 6598 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 6599 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 6600 6601 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6602 6603 LEAVE; 6604 return IPR_RC_JOB_RETURN; 6605} 6606 6607/** 6608 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 6609 * @ipr_cmd: ipr command struct 6610 * 6611 * This function enables dual IOA RAID support if possible. 6612 * 6613 * Return value: 6614 * IPR_RC_JOB_RETURN 6615 **/ 6616static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 6617{ 6618 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6619 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6620 struct ipr_mode_page24 *mode_page; 6621 int length; 6622 6623 ENTER; 6624 mode_page = ipr_get_mode_page(mode_pages, 0x24, 6625 sizeof(struct ipr_mode_page24)); 6626 6627 if (mode_page) 6628 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 6629 6630 length = mode_pages->hdr.length + 1; 6631 mode_pages->hdr.length = 0; 6632 6633 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6634 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6635 length); 6636 6637 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6638 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6639 6640 LEAVE; 6641 return IPR_RC_JOB_RETURN; 6642} 6643 6644/** 6645 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 6646 * @ipr_cmd: ipr command struct 6647 * 6648 * This function handles the failure of a Mode Sense to the IOAFP. 6649 * Some adapters do not handle all mode pages. 6650 * 6651 * Return value: 6652 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6653 **/ 6654static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 6655{ 6656 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6657 6658 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6659 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6660 return IPR_RC_JOB_CONTINUE; 6661 } 6662 6663 return ipr_reset_cmd_failed(ipr_cmd); 6664} 6665 6666/** 6667 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 6668 * @ipr_cmd: ipr command struct 6669 * 6670 * This function send a mode sense to the IOA to retrieve 6671 * the IOA Advanced Function Control mode page. 6672 * 6673 * Return value: 6674 * IPR_RC_JOB_RETURN 6675 **/ 6676static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 6677{ 6678 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6679 6680 ENTER; 6681 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6682 0x24, ioa_cfg->vpd_cbs_dma + 6683 offsetof(struct ipr_misc_cbs, mode_pages), 6684 sizeof(struct ipr_mode_pages)); 6685 6686 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 6687 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 6688 6689 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6690 6691 LEAVE; 6692 return IPR_RC_JOB_RETURN; 6693} 6694 6695/** 6696 * ipr_init_res_table - Initialize the resource table 6697 * @ipr_cmd: ipr command struct 6698 * 6699 * This function looks through the existing resource table, comparing 6700 * it with the config table. This function will take care of old/new 6701 * devices and schedule adding/removing them from the mid-layer 6702 * as appropriate. 6703 * 6704 * Return value: 6705 * IPR_RC_JOB_CONTINUE 6706 **/ 6707static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 6708{ 6709 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6710 struct ipr_resource_entry *res, *temp; 6711 struct ipr_config_table_entry_wrapper cfgtew; 6712 int entries, found, flag, i; 6713 LIST_HEAD(old_res); 6714 6715 ENTER; 6716 if (ioa_cfg->sis64) 6717 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 6718 else 6719 flag = ioa_cfg->u.cfg_table->hdr.flags; 6720 6721 if (flag & IPR_UCODE_DOWNLOAD_REQ) 6722 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 6723 6724 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6725 list_move_tail(&res->queue, &old_res); 6726 6727 if (ioa_cfg->sis64) 6728 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); 6729 else 6730 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 6731 6732 for (i = 0; i < entries; i++) { 6733 if (ioa_cfg->sis64) 6734 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 6735 else 6736 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 6737 found = 0; 6738 6739 list_for_each_entry_safe(res, temp, &old_res, queue) { 6740 if (ipr_is_same_device(res, &cfgtew)) { 6741 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6742 found = 1; 6743 break; 6744 } 6745 } 6746 6747 if (!found) { 6748 if (list_empty(&ioa_cfg->free_res_q)) { 6749 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6750 break; 6751 } 6752 6753 found = 1; 6754 res = list_entry(ioa_cfg->free_res_q.next, 6755 struct ipr_resource_entry, queue); 6756 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6757 ipr_init_res_entry(res, &cfgtew); 6758 res->add_to_ml = 1; 6759 } 6760 6761 if (found) 6762 ipr_update_res_entry(res, &cfgtew); 6763 } 6764 6765 list_for_each_entry_safe(res, temp, &old_res, queue) { 6766 if (res->sdev) { 6767 res->del_from_ml = 1; 6768 res->res_handle = IPR_INVALID_RES_HANDLE; 6769 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6770 } 6771 } 6772 6773 list_for_each_entry_safe(res, temp, &old_res, queue) { 6774 ipr_clear_res_target(res); 6775 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6776 } 6777 6778 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6779 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6780 else 6781 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6782 6783 LEAVE; 6784 return IPR_RC_JOB_CONTINUE; 6785} 6786 6787/** 6788 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6789 * @ipr_cmd: ipr command struct 6790 * 6791 * This function sends a Query IOA Configuration command 6792 * to the adapter to retrieve the IOA configuration table. 6793 * 6794 * Return value: 6795 * IPR_RC_JOB_RETURN 6796 **/ 6797static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6798{ 6799 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6800 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6801 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6802 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6803 6804 ENTER; 6805 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6806 ioa_cfg->dual_raid = 1; 6807 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6808 ucode_vpd->major_release, ucode_vpd->card_type, 6809 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6810 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6811 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6812 6813 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6814 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; 6815 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 6816 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 6817 6818 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 6819 IPR_IOADL_FLAGS_READ_LAST); 6820 6821 ipr_cmd->job_step = ipr_init_res_table; 6822 6823 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6824 6825 LEAVE; 6826 return IPR_RC_JOB_RETURN; 6827} 6828 6829/** 6830 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6831 * @ipr_cmd: ipr command struct 6832 * 6833 * This utility function sends an inquiry to the adapter. 6834 * 6835 * Return value: 6836 * none 6837 **/ 6838static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6839 dma_addr_t dma_addr, u8 xfer_len) 6840{ 6841 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6842 6843 ENTER; 6844 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6845 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6846 6847 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6848 ioarcb->cmd_pkt.cdb[1] = flags; 6849 ioarcb->cmd_pkt.cdb[2] = page; 6850 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6851 6852 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6853 6854 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6855 LEAVE; 6856} 6857 6858/** 6859 * ipr_inquiry_page_supported - Is the given inquiry page supported 6860 * @page0: inquiry page 0 buffer 6861 * @page: page code. 6862 * 6863 * This function determines if the specified inquiry page is supported. 6864 * 6865 * Return value: 6866 * 1 if page is supported / 0 if not 6867 **/ 6868static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6869{ 6870 int i; 6871 6872 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 6873 if (page0->page[i] == page) 6874 return 1; 6875 6876 return 0; 6877} 6878 6879/** 6880 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 6881 * @ipr_cmd: ipr command struct 6882 * 6883 * This function sends a Page 0xD0 inquiry to the adapter 6884 * to retrieve adapter capabilities. 6885 * 6886 * Return value: 6887 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6888 **/ 6889static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 6890{ 6891 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6892 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 6893 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6894 6895 ENTER; 6896 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 6897 memset(cap, 0, sizeof(*cap)); 6898 6899 if (ipr_inquiry_page_supported(page0, 0xD0)) { 6900 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 6901 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 6902 sizeof(struct ipr_inquiry_cap)); 6903 return IPR_RC_JOB_RETURN; 6904 } 6905 6906 LEAVE; 6907 return IPR_RC_JOB_CONTINUE; 6908} 6909 6910/** 6911 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 6912 * @ipr_cmd: ipr command struct 6913 * 6914 * This function sends a Page 3 inquiry to the adapter 6915 * to retrieve software VPD information. 6916 * 6917 * Return value: 6918 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6919 **/ 6920static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 6921{ 6922 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6923 6924 ENTER; 6925 6926 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 6927 6928 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 6929 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 6930 sizeof(struct ipr_inquiry_page3)); 6931 6932 LEAVE; 6933 return IPR_RC_JOB_RETURN; 6934} 6935 6936/** 6937 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 6938 * @ipr_cmd: ipr command struct 6939 * 6940 * This function sends a Page 0 inquiry to the adapter 6941 * to retrieve supported inquiry pages. 6942 * 6943 * Return value: 6944 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6945 **/ 6946static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 6947{ 6948 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6949 char type[5]; 6950 6951 ENTER; 6952 6953 /* Grab the type out of the VPD and store it away */ 6954 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 6955 type[4] = '\0'; 6956 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 6957 6958 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 6959 6960 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 6961 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 6962 sizeof(struct ipr_inquiry_page0)); 6963 6964 LEAVE; 6965 return IPR_RC_JOB_RETURN; 6966} 6967 6968/** 6969 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 6970 * @ipr_cmd: ipr command struct 6971 * 6972 * This function sends a standard inquiry to the adapter. 6973 * 6974 * Return value: 6975 * IPR_RC_JOB_RETURN 6976 **/ 6977static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 6978{ 6979 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6980 6981 ENTER; 6982 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 6983 6984 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 6985 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 6986 sizeof(struct ipr_ioa_vpd)); 6987 6988 LEAVE; 6989 return IPR_RC_JOB_RETURN; 6990} 6991 6992/** 6993 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 6994 * @ipr_cmd: ipr command struct 6995 * 6996 * This function send an Identify Host Request Response Queue 6997 * command to establish the HRRQ with the adapter. 6998 * 6999 * Return value: 7000 * IPR_RC_JOB_RETURN 7001 **/ 7002static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 7003{ 7004 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7005 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7006 7007 ENTER; 7008 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 7009 7010 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 7011 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7012 7013 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7014 if (ioa_cfg->sis64) 7015 ioarcb->cmd_pkt.cdb[1] = 0x1; 7016 ioarcb->cmd_pkt.cdb[2] = 7017 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; 7018 ioarcb->cmd_pkt.cdb[3] = 7019 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; 7020 ioarcb->cmd_pkt.cdb[4] = 7021 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; 7022 ioarcb->cmd_pkt.cdb[5] = 7023 ((u64) ioa_cfg->host_rrq_dma) & 0xff; 7024 ioarcb->cmd_pkt.cdb[7] = 7025 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 7026 ioarcb->cmd_pkt.cdb[8] = 7027 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 7028 7029 if (ioa_cfg->sis64) { 7030 ioarcb->cmd_pkt.cdb[10] = 7031 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; 7032 ioarcb->cmd_pkt.cdb[11] = 7033 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; 7034 ioarcb->cmd_pkt.cdb[12] = 7035 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; 7036 ioarcb->cmd_pkt.cdb[13] = 7037 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; 7038 } 7039 7040 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 7041 7042 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7043 7044 LEAVE; 7045 return IPR_RC_JOB_RETURN; 7046} 7047 7048/** 7049 * ipr_reset_timer_done - Adapter reset timer function 7050 * @ipr_cmd: ipr command struct 7051 * 7052 * Description: This function is used in adapter reset processing 7053 * for timing events. If the reset_cmd pointer in the IOA 7054 * config struct is not this adapter's we are doing nested 7055 * resets and fail_all_ops will take care of freeing the 7056 * command block. 7057 * 7058 * Return value: 7059 * none 7060 **/ 7061static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 7062{ 7063 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7064 unsigned long lock_flags = 0; 7065 7066 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7067 7068 if (ioa_cfg->reset_cmd == ipr_cmd) { 7069 list_del(&ipr_cmd->queue); 7070 ipr_cmd->done(ipr_cmd); 7071 } 7072 7073 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7074} 7075 7076/** 7077 * ipr_reset_start_timer - Start a timer for adapter reset job 7078 * @ipr_cmd: ipr command struct 7079 * @timeout: timeout value 7080 * 7081 * Description: This function is used in adapter reset processing 7082 * for timing events. If the reset_cmd pointer in the IOA 7083 * config struct is not this adapter's we are doing nested 7084 * resets and fail_all_ops will take care of freeing the 7085 * command block. 7086 * 7087 * Return value: 7088 * none 7089 **/ 7090static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 7091 unsigned long timeout) 7092{ 7093 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7094 ipr_cmd->done = ipr_reset_ioa_job; 7095 7096 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7097 ipr_cmd->timer.expires = jiffies + timeout; 7098 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 7099 add_timer(&ipr_cmd->timer); 7100} 7101 7102/** 7103 * ipr_init_ioa_mem - Initialize ioa_cfg control block 7104 * @ioa_cfg: ioa cfg struct 7105 * 7106 * Return value: 7107 * nothing 7108 **/ 7109static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 7110{ 7111 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 7112 7113 /* Initialize Host RRQ pointers */ 7114 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 7115 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 7116 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 7117 ioa_cfg->toggle_bit = 1; 7118 7119 /* Zero out config table */ 7120 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 7121} 7122 7123/** 7124 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 7125 * @ipr_cmd: ipr command struct 7126 * 7127 * Return value: 7128 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7129 **/ 7130static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 7131{ 7132 unsigned long stage, stage_time; 7133 u32 feedback; 7134 volatile u32 int_reg; 7135 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7136 u64 maskval = 0; 7137 7138 feedback = readl(ioa_cfg->regs.init_feedback_reg); 7139 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 7140 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 7141 7142 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 7143 7144 /* sanity check the stage_time value */ 7145 if (stage_time == 0) 7146 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; 7147 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 7148 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 7149 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 7150 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 7151 7152 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 7153 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 7154 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7155 stage_time = ioa_cfg->transop_timeout; 7156 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7157 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 7158 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7159 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7160 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 7161 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 7162 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7163 return IPR_RC_JOB_CONTINUE; 7164 } 7165 7166 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7167 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 7168 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7169 ipr_cmd->done = ipr_reset_ioa_job; 7170 add_timer(&ipr_cmd->timer); 7171 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7172 7173 return IPR_RC_JOB_RETURN; 7174} 7175 7176/** 7177 * ipr_reset_enable_ioa - Enable the IOA following a reset. 7178 * @ipr_cmd: ipr command struct 7179 * 7180 * This function reinitializes some control blocks and 7181 * enables destructive diagnostics on the adapter. 7182 * 7183 * Return value: 7184 * IPR_RC_JOB_RETURN 7185 **/ 7186static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 7187{ 7188 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7189 volatile u32 int_reg; 7190 7191 ENTER; 7192 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7193 ipr_init_ioa_mem(ioa_cfg); 7194 7195 ioa_cfg->allow_interrupts = 1; 7196 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7197 7198 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7199 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 7200 ioa_cfg->regs.clr_interrupt_mask_reg32); 7201 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7202 return IPR_RC_JOB_CONTINUE; 7203 } 7204 7205 /* Enable destructive diagnostics on IOA */ 7206 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 7207 7208 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 7209 if (ioa_cfg->sis64) 7210 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_mask_reg); 7211 7212 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7213 7214 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 7215 7216 if (ioa_cfg->sis64) { 7217 ipr_cmd->job_step = ipr_reset_next_stage; 7218 return IPR_RC_JOB_CONTINUE; 7219 } 7220 7221 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7222 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 7223 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7224 ipr_cmd->done = ipr_reset_ioa_job; 7225 add_timer(&ipr_cmd->timer); 7226 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7227 7228 LEAVE; 7229 return IPR_RC_JOB_RETURN; 7230} 7231 7232/** 7233 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 7234 * @ipr_cmd: ipr command struct 7235 * 7236 * This function is invoked when an adapter dump has run out 7237 * of processing time. 7238 * 7239 * Return value: 7240 * IPR_RC_JOB_CONTINUE 7241 **/ 7242static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 7243{ 7244 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7245 7246 if (ioa_cfg->sdt_state == GET_DUMP) 7247 ioa_cfg->sdt_state = ABORT_DUMP; 7248 7249 ipr_cmd->job_step = ipr_reset_alert; 7250 7251 return IPR_RC_JOB_CONTINUE; 7252} 7253 7254/** 7255 * ipr_unit_check_no_data - Log a unit check/no data error log 7256 * @ioa_cfg: ioa config struct 7257 * 7258 * Logs an error indicating the adapter unit checked, but for some 7259 * reason, we were unable to fetch the unit check buffer. 7260 * 7261 * Return value: 7262 * nothing 7263 **/ 7264static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 7265{ 7266 ioa_cfg->errors_logged++; 7267 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 7268} 7269 7270/** 7271 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 7272 * @ioa_cfg: ioa config struct 7273 * 7274 * Fetches the unit check buffer from the adapter by clocking the data 7275 * through the mailbox register. 7276 * 7277 * Return value: 7278 * nothing 7279 **/ 7280static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 7281{ 7282 unsigned long mailbox; 7283 struct ipr_hostrcb *hostrcb; 7284 struct ipr_uc_sdt sdt; 7285 int rc, length; 7286 u32 ioasc; 7287 7288 mailbox = readl(ioa_cfg->ioa_mailbox); 7289 7290 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 7291 ipr_unit_check_no_data(ioa_cfg); 7292 return; 7293 } 7294 7295 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 7296 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 7297 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 7298 7299 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 7300 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 7301 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 7302 ipr_unit_check_no_data(ioa_cfg); 7303 return; 7304 } 7305 7306 /* Find length of the first sdt entry (UC buffer) */ 7307 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 7308 length = be32_to_cpu(sdt.entry[0].end_token); 7309 else 7310 length = (be32_to_cpu(sdt.entry[0].end_token) - 7311 be32_to_cpu(sdt.entry[0].start_token)) & 7312 IPR_FMT2_MBX_ADDR_MASK; 7313 7314 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 7315 struct ipr_hostrcb, queue); 7316 list_del(&hostrcb->queue); 7317 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 7318 7319 rc = ipr_get_ldump_data_section(ioa_cfg, 7320 be32_to_cpu(sdt.entry[0].start_token), 7321 (__be32 *)&hostrcb->hcam, 7322 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 7323 7324 if (!rc) { 7325 ipr_handle_log_data(ioa_cfg, hostrcb); 7326 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 7327 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 7328 ioa_cfg->sdt_state == GET_DUMP) 7329 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7330 } else 7331 ipr_unit_check_no_data(ioa_cfg); 7332 7333 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 7334} 7335 7336/** 7337 * ipr_reset_restore_cfg_space - Restore PCI config space. 7338 * @ipr_cmd: ipr command struct 7339 * 7340 * Description: This function restores the saved PCI config space of 7341 * the adapter, fails all outstanding ops back to the callers, and 7342 * fetches the dump/unit check if applicable to this reset. 7343 * 7344 * Return value: 7345 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7346 **/ 7347static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 7348{ 7349 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7350 int rc; 7351 7352 ENTER; 7353 ioa_cfg->pdev->state_saved = true; 7354 rc = pci_restore_state(ioa_cfg->pdev); 7355 7356 if (rc != PCIBIOS_SUCCESSFUL) { 7357 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7358 return IPR_RC_JOB_CONTINUE; 7359 } 7360 7361 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 7362 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7363 return IPR_RC_JOB_CONTINUE; 7364 } 7365 7366 ipr_fail_all_ops(ioa_cfg); 7367 7368 if (ioa_cfg->ioa_unit_checked) { 7369 ioa_cfg->ioa_unit_checked = 0; 7370 ipr_get_unit_check_buffer(ioa_cfg); 7371 ipr_cmd->job_step = ipr_reset_alert; 7372 ipr_reset_start_timer(ipr_cmd, 0); 7373 return IPR_RC_JOB_RETURN; 7374 } 7375 7376 if (ioa_cfg->in_ioa_bringdown) { 7377 ipr_cmd->job_step = ipr_ioa_bringdown_done; 7378 } else { 7379 ipr_cmd->job_step = ipr_reset_enable_ioa; 7380 7381 if (GET_DUMP == ioa_cfg->sdt_state) { 7382 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 7383 ipr_cmd->job_step = ipr_reset_wait_for_dump; 7384 schedule_work(&ioa_cfg->work_q); 7385 return IPR_RC_JOB_RETURN; 7386 } 7387 } 7388 7389 LEAVE; 7390 return IPR_RC_JOB_CONTINUE; 7391} 7392 7393/** 7394 * ipr_reset_bist_done - BIST has completed on the adapter. 7395 * @ipr_cmd: ipr command struct 7396 * 7397 * Description: Unblock config space and resume the reset process. 7398 * 7399 * Return value: 7400 * IPR_RC_JOB_CONTINUE 7401 **/ 7402static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 7403{ 7404 ENTER; 7405 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7406 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 7407 LEAVE; 7408 return IPR_RC_JOB_CONTINUE; 7409} 7410 7411/** 7412 * ipr_reset_start_bist - Run BIST on the adapter. 7413 * @ipr_cmd: ipr command struct 7414 * 7415 * Description: This function runs BIST on the adapter, then delays 2 seconds. 7416 * 7417 * Return value: 7418 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7419 **/ 7420static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 7421{ 7422 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7423 int rc; 7424 7425 ENTER; 7426 pci_block_user_cfg_access(ioa_cfg->pdev); 7427 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 7428 7429 if (rc != PCIBIOS_SUCCESSFUL) { 7430 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7431 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7432 rc = IPR_RC_JOB_CONTINUE; 7433 } else { 7434 ipr_cmd->job_step = ipr_reset_bist_done; 7435 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7436 rc = IPR_RC_JOB_RETURN; 7437 } 7438 7439 LEAVE; 7440 return rc; 7441} 7442 7443/** 7444 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 7445 * @ipr_cmd: ipr command struct 7446 * 7447 * Description: This clears PCI reset to the adapter and delays two seconds. 7448 * 7449 * Return value: 7450 * IPR_RC_JOB_RETURN 7451 **/ 7452static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 7453{ 7454 ENTER; 7455 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 7456 ipr_cmd->job_step = ipr_reset_bist_done; 7457 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7458 LEAVE; 7459 return IPR_RC_JOB_RETURN; 7460} 7461 7462/** 7463 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 7464 * @ipr_cmd: ipr command struct 7465 * 7466 * Description: This asserts PCI reset to the adapter. 7467 * 7468 * Return value: 7469 * IPR_RC_JOB_RETURN 7470 **/ 7471static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 7472{ 7473 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7474 struct pci_dev *pdev = ioa_cfg->pdev; 7475 7476 ENTER; 7477 pci_block_user_cfg_access(pdev); 7478 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 7479 ipr_cmd->job_step = ipr_reset_slot_reset_done; 7480 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 7481 LEAVE; 7482 return IPR_RC_JOB_RETURN; 7483} 7484 7485/** 7486 * ipr_reset_allowed - Query whether or not IOA can be reset 7487 * @ioa_cfg: ioa config struct 7488 * 7489 * Return value: 7490 * 0 if reset not allowed / non-zero if reset is allowed 7491 **/ 7492static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 7493{ 7494 volatile u32 temp_reg; 7495 7496 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7497 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 7498} 7499 7500/** 7501 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 7502 * @ipr_cmd: ipr command struct 7503 * 7504 * Description: This function waits for adapter permission to run BIST, 7505 * then runs BIST. If the adapter does not give permission after a 7506 * reasonable time, we will reset the adapter anyway. The impact of 7507 * resetting the adapter without warning the adapter is the risk of 7508 * losing the persistent error log on the adapter. If the adapter is 7509 * reset while it is writing to the flash on the adapter, the flash 7510 * segment will have bad ECC and be zeroed. 7511 * 7512 * Return value: 7513 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7514 **/ 7515static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 7516{ 7517 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7518 int rc = IPR_RC_JOB_RETURN; 7519 7520 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 7521 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7522 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7523 } else { 7524 ipr_cmd->job_step = ioa_cfg->reset; 7525 rc = IPR_RC_JOB_CONTINUE; 7526 } 7527 7528 return rc; 7529} 7530 7531/** 7532 * ipr_reset_alert_part2 - Alert the adapter of a pending reset 7533 * @ipr_cmd: ipr command struct 7534 * 7535 * Description: This function alerts the adapter that it will be reset. 7536 * If memory space is not currently enabled, proceed directly 7537 * to running BIST on the adapter. The timer must always be started 7538 * so we guarantee we do not run BIST from ipr_isr. 7539 * 7540 * Return value: 7541 * IPR_RC_JOB_RETURN 7542 **/ 7543static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 7544{ 7545 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7546 u16 cmd_reg; 7547 int rc; 7548 7549 ENTER; 7550 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 7551 7552 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 7553 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 7554 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 7555 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 7556 } else { 7557 ipr_cmd->job_step = ioa_cfg->reset; 7558 } 7559 7560 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7561 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7562 7563 LEAVE; 7564 return IPR_RC_JOB_RETURN; 7565} 7566 7567/** 7568 * ipr_reset_ucode_download_done - Microcode download completion 7569 * @ipr_cmd: ipr command struct 7570 * 7571 * Description: This function unmaps the microcode download buffer. 7572 * 7573 * Return value: 7574 * IPR_RC_JOB_CONTINUE 7575 **/ 7576static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 7577{ 7578 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7579 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7580 7581 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 7582 sglist->num_sg, DMA_TO_DEVICE); 7583 7584 ipr_cmd->job_step = ipr_reset_alert; 7585 return IPR_RC_JOB_CONTINUE; 7586} 7587 7588/** 7589 * ipr_reset_ucode_download - Download microcode to the adapter 7590 * @ipr_cmd: ipr command struct 7591 * 7592 * Description: This function checks to see if it there is microcode 7593 * to download to the adapter. If there is, a download is performed. 7594 * 7595 * Return value: 7596 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7597 **/ 7598static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 7599{ 7600 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7601 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7602 7603 ENTER; 7604 ipr_cmd->job_step = ipr_reset_alert; 7605 7606 if (!sglist) 7607 return IPR_RC_JOB_CONTINUE; 7608 7609 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7610 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7611 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 7612 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 7613 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 7614 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 7615 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 7616 7617 if (ioa_cfg->sis64) 7618 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 7619 else 7620 ipr_build_ucode_ioadl(ipr_cmd, sglist); 7621 ipr_cmd->job_step = ipr_reset_ucode_download_done; 7622 7623 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7624 IPR_WRITE_BUFFER_TIMEOUT); 7625 7626 LEAVE; 7627 return IPR_RC_JOB_RETURN; 7628} 7629 7630/** 7631 * ipr_reset_shutdown_ioa - Shutdown the adapter 7632 * @ipr_cmd: ipr command struct 7633 * 7634 * Description: This function issues an adapter shutdown of the 7635 * specified type to the specified adapter as part of the 7636 * adapter reset job. 7637 * 7638 * Return value: 7639 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7640 **/ 7641static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 7642{ 7643 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7644 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 7645 unsigned long timeout; 7646 int rc = IPR_RC_JOB_CONTINUE; 7647 7648 ENTER; 7649 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 7650 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7651 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7652 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 7653 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 7654 7655 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 7656 timeout = IPR_SHUTDOWN_TIMEOUT; 7657 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 7658 timeout = IPR_INTERNAL_TIMEOUT; 7659 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7660 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 7661 else 7662 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 7663 7664 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 7665 7666 rc = IPR_RC_JOB_RETURN; 7667 ipr_cmd->job_step = ipr_reset_ucode_download; 7668 } else 7669 ipr_cmd->job_step = ipr_reset_alert; 7670 7671 LEAVE; 7672 return rc; 7673} 7674 7675/** 7676 * ipr_reset_ioa_job - Adapter reset job 7677 * @ipr_cmd: ipr command struct 7678 * 7679 * Description: This function is the job router for the adapter reset job. 7680 * 7681 * Return value: 7682 * none 7683 **/ 7684static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 7685{ 7686 u32 rc, ioasc; 7687 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7688 7689 do { 7690 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7691 7692 if (ioa_cfg->reset_cmd != ipr_cmd) { 7693 /* 7694 * We are doing nested adapter resets and this is 7695 * not the current reset job. 7696 */ 7697 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7698 return; 7699 } 7700 7701 if (IPR_IOASC_SENSE_KEY(ioasc)) { 7702 rc = ipr_cmd->job_step_failed(ipr_cmd); 7703 if (rc == IPR_RC_JOB_RETURN) 7704 return; 7705 } 7706 7707 ipr_reinit_ipr_cmnd(ipr_cmd); 7708 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 7709 rc = ipr_cmd->job_step(ipr_cmd); 7710 } while(rc == IPR_RC_JOB_CONTINUE); 7711} 7712 7713/** 7714 * _ipr_initiate_ioa_reset - Initiate an adapter reset 7715 * @ioa_cfg: ioa config struct 7716 * @job_step: first job step of reset job 7717 * @shutdown_type: shutdown type 7718 * 7719 * Description: This function will initiate the reset of the given adapter 7720 * starting at the selected job step. 7721 * If the caller needs to wait on the completion of the reset, 7722 * the caller must sleep on the reset_wait_q. 7723 * 7724 * Return value: 7725 * none 7726 **/ 7727static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7728 int (*job_step) (struct ipr_cmnd *), 7729 enum ipr_shutdown_type shutdown_type) 7730{ 7731 struct ipr_cmnd *ipr_cmd; 7732 7733 ioa_cfg->in_reset_reload = 1; 7734 ioa_cfg->allow_cmds = 0; 7735 scsi_block_requests(ioa_cfg->host); 7736 7737 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 7738 ioa_cfg->reset_cmd = ipr_cmd; 7739 ipr_cmd->job_step = job_step; 7740 ipr_cmd->u.shutdown_type = shutdown_type; 7741 7742 ipr_reset_ioa_job(ipr_cmd); 7743} 7744 7745/** 7746 * ipr_initiate_ioa_reset - Initiate an adapter reset 7747 * @ioa_cfg: ioa config struct 7748 * @shutdown_type: shutdown type 7749 * 7750 * Description: This function will initiate the reset of the given adapter. 7751 * If the caller needs to wait on the completion of the reset, 7752 * the caller must sleep on the reset_wait_q. 7753 * 7754 * Return value: 7755 * none 7756 **/ 7757static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7758 enum ipr_shutdown_type shutdown_type) 7759{ 7760 if (ioa_cfg->ioa_is_dead) 7761 return; 7762 7763 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 7764 ioa_cfg->sdt_state = ABORT_DUMP; 7765 7766 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 7767 dev_err(&ioa_cfg->pdev->dev, 7768 "IOA taken offline - error recovery failed\n"); 7769 7770 ioa_cfg->reset_retries = 0; 7771 ioa_cfg->ioa_is_dead = 1; 7772 7773 if (ioa_cfg->in_ioa_bringdown) { 7774 ioa_cfg->reset_cmd = NULL; 7775 ioa_cfg->in_reset_reload = 0; 7776 ipr_fail_all_ops(ioa_cfg); 7777 wake_up_all(&ioa_cfg->reset_wait_q); 7778 7779 spin_unlock_irq(ioa_cfg->host->host_lock); 7780 scsi_unblock_requests(ioa_cfg->host); 7781 spin_lock_irq(ioa_cfg->host->host_lock); 7782 return; 7783 } else { 7784 ioa_cfg->in_ioa_bringdown = 1; 7785 shutdown_type = IPR_SHUTDOWN_NONE; 7786 } 7787 } 7788 7789 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 7790 shutdown_type); 7791} 7792 7793/** 7794 * ipr_reset_freeze - Hold off all I/O activity 7795 * @ipr_cmd: ipr command struct 7796 * 7797 * Description: If the PCI slot is frozen, hold off all I/O 7798 * activity; then, as soon as the slot is available again, 7799 * initiate an adapter reset. 7800 */ 7801static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 7802{ 7803 /* Disallow new interrupts, avoid loop */ 7804 ipr_cmd->ioa_cfg->allow_interrupts = 0; 7805 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7806 ipr_cmd->done = ipr_reset_ioa_job; 7807 return IPR_RC_JOB_RETURN; 7808} 7809 7810/** 7811 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 7812 * @pdev: PCI device struct 7813 * 7814 * Description: This routine is called to tell us that the PCI bus 7815 * is down. Can't do anything here, except put the device driver 7816 * into a holding pattern, waiting for the PCI bus to come back. 7817 */ 7818static void ipr_pci_frozen(struct pci_dev *pdev) 7819{ 7820 unsigned long flags = 0; 7821 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7822 7823 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7824 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 7825 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7826} 7827 7828/** 7829 * ipr_pci_slot_reset - Called when PCI slot has been reset. 7830 * @pdev: PCI device struct 7831 * 7832 * Description: This routine is called by the pci error recovery 7833 * code after the PCI slot has been reset, just before we 7834 * should resume normal operations. 7835 */ 7836static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 7837{ 7838 unsigned long flags = 0; 7839 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7840 7841 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7842 if (ioa_cfg->needs_warm_reset) 7843 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7844 else 7845 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 7846 IPR_SHUTDOWN_NONE); 7847 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7848 return PCI_ERS_RESULT_RECOVERED; 7849} 7850 7851/** 7852 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 7853 * @pdev: PCI device struct 7854 * 7855 * Description: This routine is called when the PCI bus has 7856 * permanently failed. 7857 */ 7858static void ipr_pci_perm_failure(struct pci_dev *pdev) 7859{ 7860 unsigned long flags = 0; 7861 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 7862 7863 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 7864 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 7865 ioa_cfg->sdt_state = ABORT_DUMP; 7866 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 7867 ioa_cfg->in_ioa_bringdown = 1; 7868 ioa_cfg->allow_cmds = 0; 7869 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7870 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 7871} 7872 7873/** 7874 * ipr_pci_error_detected - Called when a PCI error is detected. 7875 * @pdev: PCI device struct 7876 * @state: PCI channel state 7877 * 7878 * Description: Called when a PCI error is detected. 7879 * 7880 * Return value: 7881 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 7882 */ 7883static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 7884 pci_channel_state_t state) 7885{ 7886 switch (state) { 7887 case pci_channel_io_frozen: 7888 ipr_pci_frozen(pdev); 7889 return PCI_ERS_RESULT_NEED_RESET; 7890 case pci_channel_io_perm_failure: 7891 ipr_pci_perm_failure(pdev); 7892 return PCI_ERS_RESULT_DISCONNECT; 7893 break; 7894 default: 7895 break; 7896 } 7897 return PCI_ERS_RESULT_NEED_RESET; 7898} 7899 7900/** 7901 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 7902 * @ioa_cfg: ioa cfg struct 7903 * 7904 * Description: This is the second phase of adapter intialization 7905 * This function takes care of initilizing the adapter to the point 7906 * where it can accept new commands. 7907 7908 * Return value: 7909 * 0 on success / -EIO on failure 7910 **/ 7911static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 7912{ 7913 int rc = 0; 7914 unsigned long host_lock_flags = 0; 7915 7916 ENTER; 7917 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7918 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 7919 if (ioa_cfg->needs_hard_reset) { 7920 ioa_cfg->needs_hard_reset = 0; 7921 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7922 } else 7923 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 7924 IPR_SHUTDOWN_NONE); 7925 7926 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7927 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 7928 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 7929 7930 if (ioa_cfg->ioa_is_dead) { 7931 rc = -EIO; 7932 } else if (ipr_invalid_adapter(ioa_cfg)) { 7933 if (!ipr_testmode) 7934 rc = -EIO; 7935 7936 dev_err(&ioa_cfg->pdev->dev, 7937 "Adapter not supported in this hardware configuration.\n"); 7938 } 7939 7940 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 7941 7942 LEAVE; 7943 return rc; 7944} 7945 7946/** 7947 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 7948 * @ioa_cfg: ioa config struct 7949 * 7950 * Return value: 7951 * none 7952 **/ 7953static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 7954{ 7955 int i; 7956 7957 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 7958 if (ioa_cfg->ipr_cmnd_list[i]) 7959 pci_pool_free(ioa_cfg->ipr_cmd_pool, 7960 ioa_cfg->ipr_cmnd_list[i], 7961 ioa_cfg->ipr_cmnd_list_dma[i]); 7962 7963 ioa_cfg->ipr_cmnd_list[i] = NULL; 7964 } 7965 7966 if (ioa_cfg->ipr_cmd_pool) 7967 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 7968 7969 ioa_cfg->ipr_cmd_pool = NULL; 7970} 7971 7972/** 7973 * ipr_free_mem - Frees memory allocated for an adapter 7974 * @ioa_cfg: ioa cfg struct 7975 * 7976 * Return value: 7977 * nothing 7978 **/ 7979static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 7980{ 7981 int i; 7982 7983 kfree(ioa_cfg->res_entries); 7984 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 7985 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 7986 ipr_free_cmd_blks(ioa_cfg); 7987 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 7988 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 7989 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, 7990 ioa_cfg->u.cfg_table, 7991 ioa_cfg->cfg_table_dma); 7992 7993 for (i = 0; i < IPR_NUM_HCAMS; i++) { 7994 pci_free_consistent(ioa_cfg->pdev, 7995 sizeof(struct ipr_hostrcb), 7996 ioa_cfg->hostrcb[i], 7997 ioa_cfg->hostrcb_dma[i]); 7998 } 7999 8000 ipr_free_dump(ioa_cfg); 8001 kfree(ioa_cfg->trace); 8002} 8003 8004/** 8005 * ipr_free_all_resources - Free all allocated resources for an adapter. 8006 * @ipr_cmd: ipr command struct 8007 * 8008 * This function frees all allocated resources for the 8009 * specified adapter. 8010 * 8011 * Return value: 8012 * none 8013 **/ 8014static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 8015{ 8016 struct pci_dev *pdev = ioa_cfg->pdev; 8017 8018 ENTER; 8019 free_irq(pdev->irq, ioa_cfg); 8020 pci_disable_msi(pdev); 8021 iounmap(ioa_cfg->hdw_dma_regs); 8022 pci_release_regions(pdev); 8023 ipr_free_mem(ioa_cfg); 8024 scsi_host_put(ioa_cfg->host); 8025 pci_disable_device(pdev); 8026 LEAVE; 8027} 8028 8029/** 8030 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 8031 * @ioa_cfg: ioa config struct 8032 * 8033 * Return value: 8034 * 0 on success / -ENOMEM on allocation failure 8035 **/ 8036static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8037{ 8038 struct ipr_cmnd *ipr_cmd; 8039 struct ipr_ioarcb *ioarcb; 8040 dma_addr_t dma_addr; 8041 int i; 8042 8043 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 8044 sizeof(struct ipr_cmnd), 16, 0); 8045 8046 if (!ioa_cfg->ipr_cmd_pool) 8047 return -ENOMEM; 8048 8049 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8050 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 8051 8052 if (!ipr_cmd) { 8053 ipr_free_cmd_blks(ioa_cfg); 8054 return -ENOMEM; 8055 } 8056 8057 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 8058 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 8059 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 8060 8061 ioarcb = &ipr_cmd->ioarcb; 8062 ipr_cmd->dma_addr = dma_addr; 8063 if (ioa_cfg->sis64) 8064 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 8065 else 8066 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 8067 8068 ioarcb->host_response_handle = cpu_to_be32(i << 2); 8069 if (ioa_cfg->sis64) { 8070 ioarcb->u.sis64_addr_data.data_ioadl_addr = 8071 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 8072 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 8073 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); 8074 } else { 8075 ioarcb->write_ioadl_addr = 8076 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 8077 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 8078 ioarcb->ioasa_host_pci_addr = 8079 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); 8080 } 8081 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 8082 ipr_cmd->cmd_index = i; 8083 ipr_cmd->ioa_cfg = ioa_cfg; 8084 ipr_cmd->sense_buffer_dma = dma_addr + 8085 offsetof(struct ipr_cmnd, sense_buffer); 8086 8087 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8088 } 8089 8090 return 0; 8091} 8092 8093/** 8094 * ipr_alloc_mem - Allocate memory for an adapter 8095 * @ioa_cfg: ioa config struct 8096 * 8097 * Return value: 8098 * 0 on success / non-zero for error 8099 **/ 8100static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 8101{ 8102 struct pci_dev *pdev = ioa_cfg->pdev; 8103 int i, rc = -ENOMEM; 8104 8105 ENTER; 8106 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 8107 ioa_cfg->max_devs_supported, GFP_KERNEL); 8108 8109 if (!ioa_cfg->res_entries) 8110 goto out; 8111 8112 if (ioa_cfg->sis64) { 8113 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * 8114 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8115 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * 8116 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8117 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * 8118 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8119 } 8120 8121 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8122 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8123 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8124 } 8125 8126 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 8127 sizeof(struct ipr_misc_cbs), 8128 &ioa_cfg->vpd_cbs_dma); 8129 8130 if (!ioa_cfg->vpd_cbs) 8131 goto out_free_res_entries; 8132 8133 if (ipr_alloc_cmd_blks(ioa_cfg)) 8134 goto out_free_vpd_cbs; 8135 8136 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 8137 sizeof(u32) * IPR_NUM_CMD_BLKS, 8138 &ioa_cfg->host_rrq_dma); 8139 8140 if (!ioa_cfg->host_rrq) 8141 goto out_ipr_free_cmd_blocks; 8142 8143 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 8144 ioa_cfg->cfg_table_size, 8145 &ioa_cfg->cfg_table_dma); 8146 8147 if (!ioa_cfg->u.cfg_table) 8148 goto out_free_host_rrq; 8149 8150 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8151 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 8152 sizeof(struct ipr_hostrcb), 8153 &ioa_cfg->hostrcb_dma[i]); 8154 8155 if (!ioa_cfg->hostrcb[i]) 8156 goto out_free_hostrcb_dma; 8157 8158 ioa_cfg->hostrcb[i]->hostrcb_dma = 8159 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 8160 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 8161 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 8162 } 8163 8164 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 8165 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 8166 8167 if (!ioa_cfg->trace) 8168 goto out_free_hostrcb_dma; 8169 8170 rc = 0; 8171out: 8172 LEAVE; 8173 return rc; 8174 8175out_free_hostrcb_dma: 8176 while (i-- > 0) { 8177 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 8178 ioa_cfg->hostrcb[i], 8179 ioa_cfg->hostrcb_dma[i]); 8180 } 8181 pci_free_consistent(pdev, ioa_cfg->cfg_table_size, 8182 ioa_cfg->u.cfg_table, 8183 ioa_cfg->cfg_table_dma); 8184out_free_host_rrq: 8185 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8186 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8187out_ipr_free_cmd_blocks: 8188 ipr_free_cmd_blks(ioa_cfg); 8189out_free_vpd_cbs: 8190 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 8191 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8192out_free_res_entries: 8193 kfree(ioa_cfg->res_entries); 8194 goto out; 8195} 8196 8197/** 8198 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 8199 * @ioa_cfg: ioa config struct 8200 * 8201 * Return value: 8202 * none 8203 **/ 8204static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 8205{ 8206 int i; 8207 8208 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 8209 ioa_cfg->bus_attr[i].bus = i; 8210 ioa_cfg->bus_attr[i].qas_enabled = 0; 8211 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 8212 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 8213 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 8214 else 8215 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 8216 } 8217} 8218 8219/** 8220 * ipr_init_ioa_cfg - Initialize IOA config struct 8221 * @ioa_cfg: ioa config struct 8222 * @host: scsi host struct 8223 * @pdev: PCI dev struct 8224 * 8225 * Return value: 8226 * none 8227 **/ 8228static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 8229 struct Scsi_Host *host, struct pci_dev *pdev) 8230{ 8231 const struct ipr_interrupt_offsets *p; 8232 struct ipr_interrupts *t; 8233 void __iomem *base; 8234 8235 ioa_cfg->host = host; 8236 ioa_cfg->pdev = pdev; 8237 ioa_cfg->log_level = ipr_log_level; 8238 ioa_cfg->doorbell = IPR_DOORBELL; 8239 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 8240 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 8241 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 8242 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 8243 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 8244 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 8245 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 8246 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 8247 8248 INIT_LIST_HEAD(&ioa_cfg->free_q); 8249 INIT_LIST_HEAD(&ioa_cfg->pending_q); 8250 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 8251 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 8252 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 8253 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 8254 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 8255 init_waitqueue_head(&ioa_cfg->reset_wait_q); 8256 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8257 ioa_cfg->sdt_state = INACTIVE; 8258 8259 ipr_initialize_bus_attr(ioa_cfg); 8260 ioa_cfg->max_devs_supported = ipr_max_devs; 8261 8262 if (ioa_cfg->sis64) { 8263 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 8264 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 8265 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 8266 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 8267 } else { 8268 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 8269 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 8270 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 8271 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 8272 } 8273 host->max_channel = IPR_MAX_BUS_TO_SCAN; 8274 host->unique_id = host->host_no; 8275 host->max_cmd_len = IPR_MAX_CDB_LEN; 8276 pci_set_drvdata(pdev, ioa_cfg); 8277 8278 p = &ioa_cfg->chip_cfg->regs; 8279 t = &ioa_cfg->regs; 8280 base = ioa_cfg->hdw_dma_regs; 8281 8282 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 8283 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 8284 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 8285 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 8286 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 8287 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 8288 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 8289 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 8290 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 8291 t->ioarrin_reg = base + p->ioarrin_reg; 8292 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 8293 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 8294 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 8295 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 8296 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 8297 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 8298 8299 if (ioa_cfg->sis64) { 8300 t->init_feedback_reg = base + p->init_feedback_reg; 8301 t->dump_addr_reg = base + p->dump_addr_reg; 8302 t->dump_data_reg = base + p->dump_data_reg; 8303 } 8304} 8305 8306/** 8307 * ipr_get_chip_info - Find adapter chip information 8308 * @dev_id: PCI device id struct 8309 * 8310 * Return value: 8311 * ptr to chip information on success / NULL on failure 8312 **/ 8313static const struct ipr_chip_t * __devinit 8314ipr_get_chip_info(const struct pci_device_id *dev_id) 8315{ 8316 int i; 8317 8318 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 8319 if (ipr_chip[i].vendor == dev_id->vendor && 8320 ipr_chip[i].device == dev_id->device) 8321 return &ipr_chip[i]; 8322 return NULL; 8323} 8324 8325/** 8326 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 8327 * @pdev: PCI device struct 8328 * 8329 * Description: Simply set the msi_received flag to 1 indicating that 8330 * Message Signaled Interrupts are supported. 8331 * 8332 * Return value: 8333 * 0 on success / non-zero on failure 8334 **/ 8335static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) 8336{ 8337 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 8338 unsigned long lock_flags = 0; 8339 irqreturn_t rc = IRQ_HANDLED; 8340 8341 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8342 8343 ioa_cfg->msi_received = 1; 8344 wake_up(&ioa_cfg->msi_wait_q); 8345 8346 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8347 return rc; 8348} 8349 8350/** 8351 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 8352 * @pdev: PCI device struct 8353 * 8354 * Description: The return value from pci_enable_msi() can not always be 8355 * trusted. This routine sets up and initiates a test interrupt to determine 8356 * if the interrupt is received via the ipr_test_intr() service routine. 8357 * If the tests fails, the driver will fall back to LSI. 8358 * 8359 * Return value: 8360 * 0 on success / non-zero on failure 8361 **/ 8362static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, 8363 struct pci_dev *pdev) 8364{ 8365 int rc; 8366 volatile u32 int_reg; 8367 unsigned long lock_flags = 0; 8368 8369 ENTER; 8370 8371 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8372 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8373 ioa_cfg->msi_received = 0; 8374 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8375 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 8376 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8377 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8378 8379 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 8380 if (rc) { 8381 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); 8382 return rc; 8383 } else if (ipr_debug) 8384 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); 8385 8386 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 8387 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8388 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 8389 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8390 8391 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8392 if (!ioa_cfg->msi_received) { 8393 /* MSI test failed */ 8394 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 8395 rc = -EOPNOTSUPP; 8396 } else if (ipr_debug) 8397 dev_info(&pdev->dev, "MSI test succeeded.\n"); 8398 8399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8400 8401 free_irq(pdev->irq, ioa_cfg); 8402 8403 LEAVE; 8404 8405 return rc; 8406} 8407 8408/** 8409 * ipr_probe_ioa - Allocates memory and does first stage of initialization 8410 * @pdev: PCI device struct 8411 * @dev_id: PCI device id struct 8412 * 8413 * Return value: 8414 * 0 on success / non-zero on failure 8415 **/ 8416static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 8417 const struct pci_device_id *dev_id) 8418{ 8419 struct ipr_ioa_cfg *ioa_cfg; 8420 struct Scsi_Host *host; 8421 unsigned long ipr_regs_pci; 8422 void __iomem *ipr_regs; 8423 int rc = PCIBIOS_SUCCESSFUL; 8424 volatile u32 mask, uproc, interrupts; 8425 8426 ENTER; 8427 8428 if ((rc = pci_enable_device(pdev))) { 8429 dev_err(&pdev->dev, "Cannot enable adapter\n"); 8430 goto out; 8431 } 8432 8433 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 8434 8435 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 8436 8437 if (!host) { 8438 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 8439 rc = -ENOMEM; 8440 goto out_disable; 8441 } 8442 8443 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 8444 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 8445 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 8446 sata_port_info.flags, &ipr_sata_ops); 8447 8448 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 8449 8450 if (!ioa_cfg->ipr_chip) { 8451 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 8452 dev_id->vendor, dev_id->device); 8453 goto out_scsi_host_put; 8454 } 8455 8456 /* set SIS 32 or SIS 64 */ 8457 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 8458 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 8459 8460 if (ipr_transop_timeout) 8461 ioa_cfg->transop_timeout = ipr_transop_timeout; 8462 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 8463 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 8464 else 8465 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 8466 8467 ioa_cfg->revid = pdev->revision; 8468 8469 ipr_regs_pci = pci_resource_start(pdev, 0); 8470 8471 rc = pci_request_regions(pdev, IPR_NAME); 8472 if (rc < 0) { 8473 dev_err(&pdev->dev, 8474 "Couldn't register memory range of registers\n"); 8475 goto out_scsi_host_put; 8476 } 8477 8478 ipr_regs = pci_ioremap_bar(pdev, 0); 8479 8480 if (!ipr_regs) { 8481 dev_err(&pdev->dev, 8482 "Couldn't map memory range of registers\n"); 8483 rc = -ENOMEM; 8484 goto out_release_regions; 8485 } 8486 8487 ioa_cfg->hdw_dma_regs = ipr_regs; 8488 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 8489 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 8490 8491 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 8492 8493 pci_set_master(pdev); 8494 8495 if (ioa_cfg->sis64) { 8496 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 8497 if (rc < 0) { 8498 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); 8499 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8500 } 8501 8502 } else 8503 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8504 8505 if (rc < 0) { 8506 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 8507 goto cleanup_nomem; 8508 } 8509 8510 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 8511 ioa_cfg->chip_cfg->cache_line_size); 8512 8513 if (rc != PCIBIOS_SUCCESSFUL) { 8514 dev_err(&pdev->dev, "Write of cache line size failed\n"); 8515 rc = -EIO; 8516 goto cleanup_nomem; 8517 } 8518 8519 /* Enable MSI style interrupts if they are supported. */ 8520 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { 8521 rc = ipr_test_msi(ioa_cfg, pdev); 8522 if (rc == -EOPNOTSUPP) 8523 pci_disable_msi(pdev); 8524 else if (rc) 8525 goto out_msi_disable; 8526 else 8527 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); 8528 } else if (ipr_debug) 8529 dev_info(&pdev->dev, "Cannot enable MSI.\n"); 8530 8531 /* Save away PCI config space for use following IOA reset */ 8532 rc = pci_save_state(pdev); 8533 8534 if (rc != PCIBIOS_SUCCESSFUL) { 8535 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 8536 rc = -EIO; 8537 goto cleanup_nomem; 8538 } 8539 8540 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 8541 goto cleanup_nomem; 8542 8543 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 8544 goto cleanup_nomem; 8545 8546 if (ioa_cfg->sis64) 8547 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 8548 + ((sizeof(struct ipr_config_table_entry64) 8549 * ioa_cfg->max_devs_supported))); 8550 else 8551 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 8552 + ((sizeof(struct ipr_config_table_entry) 8553 * ioa_cfg->max_devs_supported))); 8554 8555 rc = ipr_alloc_mem(ioa_cfg); 8556 if (rc < 0) { 8557 dev_err(&pdev->dev, 8558 "Couldn't allocate enough memory for device driver!\n"); 8559 goto cleanup_nomem; 8560 } 8561 8562 /* 8563 * If HRRQ updated interrupt is not masked, or reset alert is set, 8564 * the card is in an unknown state and needs a hard reset 8565 */ 8566 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 8567 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 8568 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 8569 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 8570 ioa_cfg->needs_hard_reset = 1; 8571 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 8572 ioa_cfg->needs_hard_reset = 1; 8573 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 8574 ioa_cfg->ioa_unit_checked = 1; 8575 8576 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8577 rc = request_irq(pdev->irq, ipr_isr, 8578 ioa_cfg->msi_received ? 0 : IRQF_SHARED, 8579 IPR_NAME, ioa_cfg); 8580 8581 if (rc) { 8582 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 8583 pdev->irq, rc); 8584 goto cleanup_nolog; 8585 } 8586 8587 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 8588 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 8589 ioa_cfg->needs_warm_reset = 1; 8590 ioa_cfg->reset = ipr_reset_slot_reset; 8591 } else 8592 ioa_cfg->reset = ipr_reset_start_bist; 8593 8594 spin_lock(&ipr_driver_lock); 8595 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 8596 spin_unlock(&ipr_driver_lock); 8597 8598 LEAVE; 8599out: 8600 return rc; 8601 8602cleanup_nolog: 8603 ipr_free_mem(ioa_cfg); 8604cleanup_nomem: 8605 iounmap(ipr_regs); 8606out_msi_disable: 8607 pci_disable_msi(pdev); 8608out_release_regions: 8609 pci_release_regions(pdev); 8610out_scsi_host_put: 8611 scsi_host_put(host); 8612out_disable: 8613 pci_disable_device(pdev); 8614 goto out; 8615} 8616 8617/** 8618 * ipr_scan_vsets - Scans for VSET devices 8619 * @ioa_cfg: ioa config struct 8620 * 8621 * Description: Since the VSET resources do not follow SAM in that we can have 8622 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 8623 * 8624 * Return value: 8625 * none 8626 **/ 8627static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 8628{ 8629 int target, lun; 8630 8631 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 8632 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 8633 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 8634} 8635 8636/** 8637 * ipr_initiate_ioa_bringdown - Bring down an adapter 8638 * @ioa_cfg: ioa config struct 8639 * @shutdown_type: shutdown type 8640 * 8641 * Description: This function will initiate bringing down the adapter. 8642 * This consists of issuing an IOA shutdown to the adapter 8643 * to flush the cache, and running BIST. 8644 * If the caller needs to wait on the completion of the reset, 8645 * the caller must sleep on the reset_wait_q. 8646 * 8647 * Return value: 8648 * none 8649 **/ 8650static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 8651 enum ipr_shutdown_type shutdown_type) 8652{ 8653 ENTER; 8654 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8655 ioa_cfg->sdt_state = ABORT_DUMP; 8656 ioa_cfg->reset_retries = 0; 8657 ioa_cfg->in_ioa_bringdown = 1; 8658 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 8659 LEAVE; 8660} 8661 8662/** 8663 * __ipr_remove - Remove a single adapter 8664 * @pdev: pci device struct 8665 * 8666 * Adapter hot plug remove entry point. 8667 * 8668 * Return value: 8669 * none 8670 **/ 8671static void __ipr_remove(struct pci_dev *pdev) 8672{ 8673 unsigned long host_lock_flags = 0; 8674 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8675 ENTER; 8676 8677 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8678 while(ioa_cfg->in_reset_reload) { 8679 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8680 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8681 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8682 } 8683 8684 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8685 8686 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8687 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8688 flush_scheduled_work(); 8689 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8690 8691 spin_lock(&ipr_driver_lock); 8692 list_del(&ioa_cfg->queue); 8693 spin_unlock(&ipr_driver_lock); 8694 8695 if (ioa_cfg->sdt_state == ABORT_DUMP) 8696 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8697 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8698 8699 ipr_free_all_resources(ioa_cfg); 8700 8701 LEAVE; 8702} 8703 8704/** 8705 * ipr_remove - IOA hot plug remove entry point 8706 * @pdev: pci device struct 8707 * 8708 * Adapter hot plug remove entry point. 8709 * 8710 * Return value: 8711 * none 8712 **/ 8713static void __devexit ipr_remove(struct pci_dev *pdev) 8714{ 8715 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8716 8717 ENTER; 8718 8719 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8720 &ipr_trace_attr); 8721 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 8722 &ipr_dump_attr); 8723 scsi_remove_host(ioa_cfg->host); 8724 8725 __ipr_remove(pdev); 8726 8727 LEAVE; 8728} 8729 8730/** 8731 * ipr_probe - Adapter hot plug add entry point 8732 * 8733 * Return value: 8734 * 0 on success / non-zero on failure 8735 **/ 8736static int __devinit ipr_probe(struct pci_dev *pdev, 8737 const struct pci_device_id *dev_id) 8738{ 8739 struct ipr_ioa_cfg *ioa_cfg; 8740 int rc; 8741 8742 rc = ipr_probe_ioa(pdev, dev_id); 8743 8744 if (rc) 8745 return rc; 8746 8747 ioa_cfg = pci_get_drvdata(pdev); 8748 rc = ipr_probe_ioa_part2(ioa_cfg); 8749 8750 if (rc) { 8751 __ipr_remove(pdev); 8752 return rc; 8753 } 8754 8755 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 8756 8757 if (rc) { 8758 __ipr_remove(pdev); 8759 return rc; 8760 } 8761 8762 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 8763 &ipr_trace_attr); 8764 8765 if (rc) { 8766 scsi_remove_host(ioa_cfg->host); 8767 __ipr_remove(pdev); 8768 return rc; 8769 } 8770 8771 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 8772 &ipr_dump_attr); 8773 8774 if (rc) { 8775 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8776 &ipr_trace_attr); 8777 scsi_remove_host(ioa_cfg->host); 8778 __ipr_remove(pdev); 8779 return rc; 8780 } 8781 8782 scsi_scan_host(ioa_cfg->host); 8783 ipr_scan_vsets(ioa_cfg); 8784 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 8785 ioa_cfg->allow_ml_add_del = 1; 8786 ioa_cfg->host->max_channel = IPR_VSET_BUS; 8787 schedule_work(&ioa_cfg->work_q); 8788 return 0; 8789} 8790 8791/** 8792 * ipr_shutdown - Shutdown handler. 8793 * @pdev: pci device struct 8794 * 8795 * This function is invoked upon system shutdown/reboot. It will issue 8796 * an adapter shutdown to the adapter to flush the write cache. 8797 * 8798 * Return value: 8799 * none 8800 **/ 8801static void ipr_shutdown(struct pci_dev *pdev) 8802{ 8803 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8804 unsigned long lock_flags = 0; 8805 8806 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8807 while(ioa_cfg->in_reset_reload) { 8808 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8809 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8810 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8811 } 8812 8813 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8815 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8816} 8817 8818static struct pci_device_id ipr_pci_table[] __devinitdata = { 8819 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8820 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 8821 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8822 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 8823 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8824 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 8825 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8826 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 8827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 8829 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8830 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 8831 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8832 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 8833 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 8834 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 8835 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8836 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8837 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 8838 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8839 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 8840 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8841 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 8842 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 8843 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8844 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8845 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 8846 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8847 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 8848 IPR_USE_LONG_TRANSOP_TIMEOUT}, 8849 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 8850 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 8851 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8852 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8853 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 8854 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8855 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8856 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 8857 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 8858 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 8859 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 8860 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 8861 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 8862 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8863 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 8864 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8865 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 8866 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8867 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 8868 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 8869 IPR_USE_LONG_TRANSOP_TIMEOUT }, 8870 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8871 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 8872 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8873 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 8874 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 8875 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 8876 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8877 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 8878 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8879 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 8880 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8881 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 8882 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8883 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 }, 8884 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 8885 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 8886 { } 8887}; 8888MODULE_DEVICE_TABLE(pci, ipr_pci_table); 8889 8890static struct pci_error_handlers ipr_err_handler = { 8891 .error_detected = ipr_pci_error_detected, 8892 .slot_reset = ipr_pci_slot_reset, 8893}; 8894 8895static struct pci_driver ipr_driver = { 8896 .name = IPR_NAME, 8897 .id_table = ipr_pci_table, 8898 .probe = ipr_probe, 8899 .remove = __devexit_p(ipr_remove), 8900 .shutdown = ipr_shutdown, 8901 .err_handler = &ipr_err_handler, 8902}; 8903 8904/** 8905 * ipr_halt_done - Shutdown prepare completion 8906 * 8907 * Return value: 8908 * none 8909 **/ 8910static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 8911{ 8912 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8913 8914 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8915} 8916 8917/** 8918 * ipr_halt - Issue shutdown prepare to all adapters 8919 * 8920 * Return value: 8921 * NOTIFY_OK on success / NOTIFY_DONE on failure 8922 **/ 8923static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 8924{ 8925 struct ipr_cmnd *ipr_cmd; 8926 struct ipr_ioa_cfg *ioa_cfg; 8927 unsigned long flags = 0; 8928 8929 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 8930 return NOTIFY_DONE; 8931 8932 spin_lock(&ipr_driver_lock); 8933 8934 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 8935 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8936 if (!ioa_cfg->allow_cmds) { 8937 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8938 continue; 8939 } 8940 8941 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 8942 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 8943 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 8944 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 8945 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 8946 8947 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 8948 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8949 } 8950 spin_unlock(&ipr_driver_lock); 8951 8952 return NOTIFY_OK; 8953} 8954 8955static struct notifier_block ipr_notifier = { 8956 ipr_halt, NULL, 0 8957}; 8958 8959/** 8960 * ipr_init - Module entry point 8961 * 8962 * Return value: 8963 * 0 on success / negative value on failure 8964 **/ 8965static int __init ipr_init(void) 8966{ 8967 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 8968 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 8969 8970 register_reboot_notifier(&ipr_notifier); 8971 return pci_register_driver(&ipr_driver); 8972} 8973 8974/** 8975 * ipr_exit - Module unload 8976 * 8977 * Module unload entry point. 8978 * 8979 * Return value: 8980 * none 8981 **/ 8982static void __exit ipr_exit(void) 8983{ 8984 unregister_reboot_notifier(&ipr_notifier); 8985 pci_unregister_driver(&ipr_driver); 8986} 8987 8988module_init(ipr_init); 8989module_exit(ipr_exit); 8990