ipr.c revision 3696df309971b3427cb9cb039138a1732a865a0b
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 = 0x00044, 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 .endian_swap_reg = 0x00084 172 } 173 }, 174}; 175 176static const struct ipr_chip_t ipr_chip[] = { 177 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, 183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, 184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, 185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } 186}; 187 188static int ipr_max_bus_speeds [] = { 189 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 190}; 191 192MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 193MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 194module_param_named(max_speed, ipr_max_speed, uint, 0); 195MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 196module_param_named(log_level, ipr_log_level, uint, 0); 197MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 198module_param_named(testmode, ipr_testmode, int, 0); 199MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 200module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); 201MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 202module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 203MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 204module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); 205MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 206module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 207MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 208module_param_named(max_devs, ipr_max_devs, int, 0); 209MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " 210 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); 211MODULE_LICENSE("GPL"); 212MODULE_VERSION(IPR_DRIVER_VERSION); 213 214/* A constant array of IOASCs/URCs/Error Messages */ 215static const 216struct ipr_error_table_t ipr_error_table[] = { 217 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 218 "8155: An unknown error was received"}, 219 {0x00330000, 0, 0, 220 "Soft underlength error"}, 221 {0x005A0000, 0, 0, 222 "Command to be cancelled not found"}, 223 {0x00808000, 0, 0, 224 "Qualified success"}, 225 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 226 "FFFE: Soft device bus error recovered by the IOA"}, 227 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 228 "4101: Soft device bus fabric error"}, 229 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, 230 "FFFC: Logical block guard error recovered by the device"}, 231 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, 232 "FFFC: Logical block reference tag error recovered by the device"}, 233 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, 234 "4171: Recovered scatter list tag / sequence number error"}, 235 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, 236 "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, 237 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, 238 "4171: Recovered logical block sequence number error on IOA to Host transfer"}, 239 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, 240 "FFFD: Recovered logical block reference tag error detected by the IOA"}, 241 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, 242 "FFFD: Logical block guard error recovered by the IOA"}, 243 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 244 "FFF9: Device sector reassign successful"}, 245 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 246 "FFF7: Media error recovered by device rewrite procedures"}, 247 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 248 "7001: IOA sector reassignment successful"}, 249 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 250 "FFF9: Soft media error. Sector reassignment recommended"}, 251 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 252 "FFF7: Media error recovered by IOA rewrite procedures"}, 253 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 254 "FF3D: Soft PCI bus error recovered by the IOA"}, 255 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 256 "FFF6: Device hardware error recovered by the IOA"}, 257 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 258 "FFF6: Device hardware error recovered by the device"}, 259 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 260 "FF3D: Soft IOA error recovered by the IOA"}, 261 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 262 "FFFA: Undefined device response recovered by the IOA"}, 263 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 264 "FFF6: Device bus error, message or command phase"}, 265 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 266 "FFFE: Task Management Function failed"}, 267 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 268 "FFF6: Failure prediction threshold exceeded"}, 269 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 270 "8009: Impending cache battery pack failure"}, 271 {0x02040400, 0, 0, 272 "34FF: Disk device format in progress"}, 273 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 274 "9070: IOA requested reset"}, 275 {0x023F0000, 0, 0, 276 "Synchronization required"}, 277 {0x024E0000, 0, 0, 278 "No ready, IOA shutdown"}, 279 {0x025A0000, 0, 0, 280 "Not ready, IOA has been shutdown"}, 281 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 282 "3020: Storage subsystem configuration error"}, 283 {0x03110B00, 0, 0, 284 "FFF5: Medium error, data unreadable, recommend reassign"}, 285 {0x03110C00, 0, 0, 286 "7000: Medium error, data unreadable, do not reassign"}, 287 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 288 "FFF3: Disk media format bad"}, 289 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 290 "3002: Addressed device failed to respond to selection"}, 291 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 292 "3100: Device bus error"}, 293 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 294 "3109: IOA timed out a device command"}, 295 {0x04088000, 0, 0, 296 "3120: SCSI bus is not operational"}, 297 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 298 "4100: Hard device bus fabric error"}, 299 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, 300 "310C: Logical block guard error detected by the device"}, 301 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, 302 "310C: Logical block reference tag error detected by the device"}, 303 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, 304 "4170: Scatter list tag / sequence number error"}, 305 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, 306 "8150: Logical block CRC error on IOA to Host transfer"}, 307 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, 308 "4170: Logical block sequence number error on IOA to Host transfer"}, 309 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, 310 "310D: Logical block reference tag error detected by the IOA"}, 311 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, 312 "310D: Logical block guard error detected by the IOA"}, 313 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 314 "9000: IOA reserved area data check"}, 315 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 316 "9001: IOA reserved area invalid data pattern"}, 317 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 318 "9002: IOA reserved area LRC error"}, 319 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, 320 "Hardware Error, IOA metadata access error"}, 321 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 322 "102E: Out of alternate sectors for disk storage"}, 323 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 324 "FFF4: Data transfer underlength error"}, 325 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 326 "FFF4: Data transfer overlength error"}, 327 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 328 "3400: Logical unit failure"}, 329 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 330 "FFF4: Device microcode is corrupt"}, 331 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 332 "8150: PCI bus error"}, 333 {0x04430000, 1, 0, 334 "Unsupported device bus message received"}, 335 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 336 "FFF4: Disk device problem"}, 337 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 338 "8150: Permanent IOA failure"}, 339 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 340 "3010: Disk device returned wrong response to IOA"}, 341 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 342 "8151: IOA microcode error"}, 343 {0x04448500, 0, 0, 344 "Device bus status error"}, 345 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 346 "8157: IOA error requiring IOA reset to recover"}, 347 {0x04448700, 0, 0, 348 "ATA device status error"}, 349 {0x04490000, 0, 0, 350 "Message reject received from the device"}, 351 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 352 "8008: A permanent cache battery pack failure occurred"}, 353 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 354 "9090: Disk unit has been modified after the last known status"}, 355 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 356 "9081: IOA detected device error"}, 357 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 358 "9082: IOA detected device error"}, 359 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 360 "3110: Device bus error, message or command phase"}, 361 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 362 "3110: SAS Command / Task Management Function failed"}, 363 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 364 "9091: Incorrect hardware configuration change has been detected"}, 365 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 366 "9073: Invalid multi-adapter configuration"}, 367 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 368 "4010: Incorrect connection between cascaded expanders"}, 369 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 370 "4020: Connections exceed IOA design limits"}, 371 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 372 "4030: Incorrect multipath connection"}, 373 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 374 "4110: Unsupported enclosure function"}, 375 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 376 "FFF4: Command to logical unit failed"}, 377 {0x05240000, 1, 0, 378 "Illegal request, invalid request type or request packet"}, 379 {0x05250000, 0, 0, 380 "Illegal request, invalid resource handle"}, 381 {0x05258000, 0, 0, 382 "Illegal request, commands not allowed to this device"}, 383 {0x05258100, 0, 0, 384 "Illegal request, command not allowed to a secondary adapter"}, 385 {0x05258200, 0, 0, 386 "Illegal request, command not allowed to a non-optimized resource"}, 387 {0x05260000, 0, 0, 388 "Illegal request, invalid field in parameter list"}, 389 {0x05260100, 0, 0, 390 "Illegal request, parameter not supported"}, 391 {0x05260200, 0, 0, 392 "Illegal request, parameter value invalid"}, 393 {0x052C0000, 0, 0, 394 "Illegal request, command sequence error"}, 395 {0x052C8000, 1, 0, 396 "Illegal request, dual adapter support not enabled"}, 397 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 398 "9031: Array protection temporarily suspended, protection resuming"}, 399 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 400 "9040: Array protection temporarily suspended, protection resuming"}, 401 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 402 "3140: Device bus not ready to ready transition"}, 403 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 404 "FFFB: SCSI bus was reset"}, 405 {0x06290500, 0, 0, 406 "FFFE: SCSI bus transition to single ended"}, 407 {0x06290600, 0, 0, 408 "FFFE: SCSI bus transition to LVD"}, 409 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 410 "FFFB: SCSI bus was reset by another initiator"}, 411 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 412 "3029: A device replacement has occurred"}, 413 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 414 "9051: IOA cache data exists for a missing or failed device"}, 415 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 416 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 417 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 418 "9025: Disk unit is not supported at its physical location"}, 419 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 420 "3020: IOA detected a SCSI bus configuration error"}, 421 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 422 "3150: SCSI bus configuration error"}, 423 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 424 "9074: Asymmetric advanced function disk configuration"}, 425 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 426 "4040: Incomplete multipath connection between IOA and enclosure"}, 427 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 428 "4041: Incomplete multipath connection between enclosure and device"}, 429 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 430 "9075: Incomplete multipath connection between IOA and remote IOA"}, 431 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 432 "9076: Configuration error, missing remote IOA"}, 433 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 434 "4050: Enclosure does not support a required multipath function"}, 435 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, 436 "4070: Logically bad block written on device"}, 437 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 438 "9041: Array protection temporarily suspended"}, 439 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 440 "9042: Corrupt array parity detected on specified device"}, 441 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 442 "9030: Array no longer protected due to missing or failed disk unit"}, 443 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 444 "9071: Link operational transition"}, 445 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 446 "9072: Link not operational transition"}, 447 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 448 "9032: Array exposed but still protected"}, 449 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 450 "70DD: Device forced failed by disrupt device command"}, 451 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 452 "4061: Multipath redundancy level got better"}, 453 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 454 "4060: Multipath redundancy level got worse"}, 455 {0x07270000, 0, 0, 456 "Failure due to other device"}, 457 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 458 "9008: IOA does not support functions expected by devices"}, 459 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 460 "9010: Cache data associated with attached devices cannot be found"}, 461 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 462 "9011: Cache data belongs to devices other than those attached"}, 463 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 464 "9020: Array missing 2 or more devices with only 1 device present"}, 465 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 466 "9021: Array missing 2 or more devices with 2 or more devices present"}, 467 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 468 "9022: Exposed array is missing a required device"}, 469 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 470 "9023: Array member(s) not at required physical locations"}, 471 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 472 "9024: Array not functional due to present hardware configuration"}, 473 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 474 "9026: Array not functional due to present hardware configuration"}, 475 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 476 "9027: Array is missing a device and parity is out of sync"}, 477 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 478 "9028: Maximum number of arrays already exist"}, 479 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 480 "9050: Required cache data cannot be located for a disk unit"}, 481 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 482 "9052: Cache data exists for a device that has been modified"}, 483 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 484 "9054: IOA resources not available due to previous problems"}, 485 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 486 "9092: Disk unit requires initialization before use"}, 487 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 488 "9029: Incorrect hardware configuration change has been detected"}, 489 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 490 "9060: One or more disk pairs are missing from an array"}, 491 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 492 "9061: One or more disks are missing from an array"}, 493 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 494 "9062: One or more disks are missing from an array"}, 495 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 496 "9063: Maximum number of functional arrays has been exceeded"}, 497 {0x0B260000, 0, 0, 498 "Aborted command, invalid descriptor"}, 499 {0x0B5A0000, 0, 0, 500 "Command terminated by host"} 501}; 502 503static const struct ipr_ses_table_entry ipr_ses_table[] = { 504 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 505 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 506 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 507 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 508 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 509 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 510 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 511 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 512 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 513 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 514 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 515 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 516 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 517}; 518 519/* 520 * Function Prototypes 521 */ 522static int ipr_reset_alert(struct ipr_cmnd *); 523static void ipr_process_ccn(struct ipr_cmnd *); 524static void ipr_process_error(struct ipr_cmnd *); 525static void ipr_reset_ioa_job(struct ipr_cmnd *); 526static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 527 enum ipr_shutdown_type); 528 529#ifdef CONFIG_SCSI_IPR_TRACE 530/** 531 * ipr_trc_hook - Add a trace entry to the driver trace 532 * @ipr_cmd: ipr command struct 533 * @type: trace type 534 * @add_data: additional data 535 * 536 * Return value: 537 * none 538 **/ 539static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 540 u8 type, u32 add_data) 541{ 542 struct ipr_trace_entry *trace_entry; 543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 544 545 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 546 trace_entry->time = jiffies; 547 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 548 trace_entry->type = type; 549 if (ipr_cmd->ioa_cfg->sis64) 550 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; 551 else 552 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; 553 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 554 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 555 trace_entry->u.add_data = add_data; 556} 557#else 558#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 559#endif 560 561/** 562 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 563 * @ipr_cmd: ipr command struct 564 * 565 * Return value: 566 * none 567 **/ 568static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 569{ 570 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 573 dma_addr_t dma_addr = ipr_cmd->dma_addr; 574 575 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 576 ioarcb->data_transfer_length = 0; 577 ioarcb->read_data_transfer_length = 0; 578 ioarcb->ioadl_len = 0; 579 ioarcb->read_ioadl_len = 0; 580 581 if (ipr_cmd->ioa_cfg->sis64) { 582 ioarcb->u.sis64_addr_data.data_ioadl_addr = 583 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 584 ioasa64->u.gata.status = 0; 585 } else { 586 ioarcb->write_ioadl_addr = 587 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 588 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 589 ioasa->u.gata.status = 0; 590 } 591 592 ioasa->hdr.ioasc = 0; 593 ioasa->hdr.residual_data_len = 0; 594 ipr_cmd->scsi_cmd = NULL; 595 ipr_cmd->qc = NULL; 596 ipr_cmd->sense_buffer[0] = 0; 597 ipr_cmd->dma_use_sg = 0; 598} 599 600/** 601 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 602 * @ipr_cmd: ipr command struct 603 * 604 * Return value: 605 * none 606 **/ 607static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 608{ 609 ipr_reinit_ipr_cmnd(ipr_cmd); 610 ipr_cmd->u.scratch = 0; 611 ipr_cmd->sibling = NULL; 612 init_timer(&ipr_cmd->timer); 613} 614 615/** 616 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 617 * @ioa_cfg: ioa config struct 618 * 619 * Return value: 620 * pointer to ipr command struct 621 **/ 622static 623struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 624{ 625 struct ipr_cmnd *ipr_cmd; 626 627 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 628 list_del(&ipr_cmd->queue); 629 ipr_init_ipr_cmnd(ipr_cmd); 630 631 return ipr_cmd; 632} 633 634/** 635 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 636 * @ioa_cfg: ioa config struct 637 * @clr_ints: interrupts to clear 638 * 639 * This function masks all interrupts on the adapter, then clears the 640 * interrupts specified in the mask 641 * 642 * Return value: 643 * none 644 **/ 645static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 646 u32 clr_ints) 647{ 648 volatile u32 int_reg; 649 650 /* Stop new interrupts */ 651 ioa_cfg->allow_interrupts = 0; 652 653 /* Set interrupt mask to stop all new interrupts */ 654 if (ioa_cfg->sis64) 655 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); 656 else 657 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 658 659 /* Clear any pending interrupts */ 660 if (ioa_cfg->sis64) 661 writel(~0, ioa_cfg->regs.clr_interrupt_reg); 662 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); 663 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 664} 665 666/** 667 * ipr_save_pcix_cmd_reg - Save PCI-X command register 668 * @ioa_cfg: ioa config struct 669 * 670 * Return value: 671 * 0 on success / -EIO on failure 672 **/ 673static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 674{ 675 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 676 677 if (pcix_cmd_reg == 0) 678 return 0; 679 680 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 681 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 682 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 683 return -EIO; 684 } 685 686 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 687 return 0; 688} 689 690/** 691 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 692 * @ioa_cfg: ioa config struct 693 * 694 * Return value: 695 * 0 on success / -EIO on failure 696 **/ 697static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 698{ 699 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 700 701 if (pcix_cmd_reg) { 702 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 703 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 704 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 705 return -EIO; 706 } 707 } 708 709 return 0; 710} 711 712/** 713 * ipr_sata_eh_done - done function for aborted SATA commands 714 * @ipr_cmd: ipr command struct 715 * 716 * This function is invoked for ops generated to SATA 717 * devices which are being aborted. 718 * 719 * Return value: 720 * none 721 **/ 722static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 723{ 724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 725 struct ata_queued_cmd *qc = ipr_cmd->qc; 726 struct ipr_sata_port *sata_port = qc->ap->private_data; 727 728 qc->err_mask |= AC_ERR_OTHER; 729 sata_port->ioasa.status |= ATA_BUSY; 730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 731 ata_qc_complete(qc); 732} 733 734/** 735 * ipr_scsi_eh_done - mid-layer done function for aborted ops 736 * @ipr_cmd: ipr command struct 737 * 738 * This function is invoked by the interrupt handler for 739 * ops generated by the SCSI mid-layer which are being aborted. 740 * 741 * Return value: 742 * none 743 **/ 744static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 745{ 746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 748 749 scsi_cmd->result |= (DID_ERROR << 16); 750 751 scsi_dma_unmap(ipr_cmd->scsi_cmd); 752 scsi_cmd->scsi_done(scsi_cmd); 753 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 754} 755 756/** 757 * ipr_fail_all_ops - Fails all outstanding ops. 758 * @ioa_cfg: ioa config struct 759 * 760 * This function fails all outstanding ops. 761 * 762 * Return value: 763 * none 764 **/ 765static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 766{ 767 struct ipr_cmnd *ipr_cmd, *temp; 768 769 ENTER; 770 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 771 list_del(&ipr_cmd->queue); 772 773 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 774 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID); 775 776 if (ipr_cmd->scsi_cmd) 777 ipr_cmd->done = ipr_scsi_eh_done; 778 else if (ipr_cmd->qc) 779 ipr_cmd->done = ipr_sata_eh_done; 780 781 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 782 del_timer(&ipr_cmd->timer); 783 ipr_cmd->done(ipr_cmd); 784 } 785 786 LEAVE; 787} 788 789/** 790 * ipr_send_command - Send driver initiated requests. 791 * @ipr_cmd: ipr command struct 792 * 793 * This function sends a command to the adapter using the correct write call. 794 * In the case of sis64, calculate the ioarcb size required. Then or in the 795 * appropriate bits. 796 * 797 * Return value: 798 * none 799 **/ 800static void ipr_send_command(struct ipr_cmnd *ipr_cmd) 801{ 802 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 803 dma_addr_t send_dma_addr = ipr_cmd->dma_addr; 804 805 if (ioa_cfg->sis64) { 806 /* The default size is 256 bytes */ 807 send_dma_addr |= 0x1; 808 809 /* If the number of ioadls * size of ioadl > 128 bytes, 810 then use a 512 byte ioarcb */ 811 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) 812 send_dma_addr |= 0x4; 813 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 814 } else 815 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 816} 817 818/** 819 * ipr_do_req - Send driver initiated requests. 820 * @ipr_cmd: ipr command struct 821 * @done: done function 822 * @timeout_func: timeout function 823 * @timeout: timeout value 824 * 825 * This function sends the specified command to the adapter with the 826 * timeout given. The done function is invoked on command completion. 827 * 828 * Return value: 829 * none 830 **/ 831static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 832 void (*done) (struct ipr_cmnd *), 833 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 834{ 835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 836 837 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 838 839 ipr_cmd->done = done; 840 841 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 842 ipr_cmd->timer.expires = jiffies + timeout; 843 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 844 845 add_timer(&ipr_cmd->timer); 846 847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 848 849 mb(); 850 851 ipr_send_command(ipr_cmd); 852} 853 854/** 855 * ipr_internal_cmd_done - Op done function for an internally generated op. 856 * @ipr_cmd: ipr command struct 857 * 858 * This function is the op done function for an internally generated, 859 * blocking op. It simply wakes the sleeping thread. 860 * 861 * Return value: 862 * none 863 **/ 864static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 865{ 866 if (ipr_cmd->sibling) 867 ipr_cmd->sibling = NULL; 868 else 869 complete(&ipr_cmd->completion); 870} 871 872/** 873 * ipr_init_ioadl - initialize the ioadl for the correct SIS type 874 * @ipr_cmd: ipr command struct 875 * @dma_addr: dma address 876 * @len: transfer length 877 * @flags: ioadl flag value 878 * 879 * This function initializes an ioadl in the case where there is only a single 880 * descriptor. 881 * 882 * Return value: 883 * nothing 884 **/ 885static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, 886 u32 len, int flags) 887{ 888 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 889 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 890 891 ipr_cmd->dma_use_sg = 1; 892 893 if (ipr_cmd->ioa_cfg->sis64) { 894 ioadl64->flags = cpu_to_be32(flags); 895 ioadl64->data_len = cpu_to_be32(len); 896 ioadl64->address = cpu_to_be64(dma_addr); 897 898 ipr_cmd->ioarcb.ioadl_len = 899 cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); 900 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 901 } else { 902 ioadl->flags_and_data_len = cpu_to_be32(flags | len); 903 ioadl->address = cpu_to_be32(dma_addr); 904 905 if (flags == IPR_IOADL_FLAGS_READ_LAST) { 906 ipr_cmd->ioarcb.read_ioadl_len = 907 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 908 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); 909 } else { 910 ipr_cmd->ioarcb.ioadl_len = 911 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 912 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 913 } 914 } 915} 916 917/** 918 * ipr_send_blocking_cmd - Send command and sleep on its completion. 919 * @ipr_cmd: ipr command struct 920 * @timeout_func: function to invoke if command times out 921 * @timeout: timeout 922 * 923 * Return value: 924 * none 925 **/ 926static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 927 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 928 u32 timeout) 929{ 930 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 931 932 init_completion(&ipr_cmd->completion); 933 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 934 935 spin_unlock_irq(ioa_cfg->host->host_lock); 936 wait_for_completion(&ipr_cmd->completion); 937 spin_lock_irq(ioa_cfg->host->host_lock); 938} 939 940/** 941 * ipr_send_hcam - Send an HCAM to the adapter. 942 * @ioa_cfg: ioa config struct 943 * @type: HCAM type 944 * @hostrcb: hostrcb struct 945 * 946 * This function will send a Host Controlled Async command to the adapter. 947 * If HCAMs are currently not allowed to be issued to the adapter, it will 948 * place the hostrcb on the free queue. 949 * 950 * Return value: 951 * none 952 **/ 953static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 954 struct ipr_hostrcb *hostrcb) 955{ 956 struct ipr_cmnd *ipr_cmd; 957 struct ipr_ioarcb *ioarcb; 958 959 if (ioa_cfg->allow_cmds) { 960 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 961 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 962 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 963 964 ipr_cmd->u.hostrcb = hostrcb; 965 ioarcb = &ipr_cmd->ioarcb; 966 967 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 969 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 970 ioarcb->cmd_pkt.cdb[1] = type; 971 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 972 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 973 974 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, 975 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); 976 977 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 978 ipr_cmd->done = ipr_process_ccn; 979 else 980 ipr_cmd->done = ipr_process_error; 981 982 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 983 984 mb(); 985 986 ipr_send_command(ipr_cmd); 987 } else { 988 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 989 } 990} 991 992/** 993 * ipr_update_ata_class - Update the ata class in the resource entry 994 * @res: resource entry struct 995 * @proto: cfgte device bus protocol value 996 * 997 * Return value: 998 * none 999 **/ 1000static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) 1001{ 1002 switch(proto) { 1003 case IPR_PROTO_SATA: 1004 case IPR_PROTO_SAS_STP: 1005 res->ata_class = ATA_DEV_ATA; 1006 break; 1007 case IPR_PROTO_SATA_ATAPI: 1008 case IPR_PROTO_SAS_STP_ATAPI: 1009 res->ata_class = ATA_DEV_ATAPI; 1010 break; 1011 default: 1012 res->ata_class = ATA_DEV_UNKNOWN; 1013 break; 1014 }; 1015} 1016 1017/** 1018 * ipr_init_res_entry - Initialize a resource entry struct. 1019 * @res: resource entry struct 1020 * @cfgtew: config table entry wrapper struct 1021 * 1022 * Return value: 1023 * none 1024 **/ 1025static void ipr_init_res_entry(struct ipr_resource_entry *res, 1026 struct ipr_config_table_entry_wrapper *cfgtew) 1027{ 1028 int found = 0; 1029 unsigned int proto; 1030 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1031 struct ipr_resource_entry *gscsi_res = NULL; 1032 1033 res->needs_sync_complete = 0; 1034 res->in_erp = 0; 1035 res->add_to_ml = 0; 1036 res->del_from_ml = 0; 1037 res->resetting_device = 0; 1038 res->sdev = NULL; 1039 res->sata_port = NULL; 1040 1041 if (ioa_cfg->sis64) { 1042 proto = cfgtew->u.cfgte64->proto; 1043 res->res_flags = cfgtew->u.cfgte64->res_flags; 1044 res->qmodel = IPR_QUEUEING_MODEL64(res); 1045 res->type = cfgtew->u.cfgte64->res_type; 1046 1047 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1048 sizeof(res->res_path)); 1049 1050 res->bus = 0; 1051 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1052 sizeof(res->dev_lun.scsi_lun)); 1053 res->lun = scsilun_to_int(&res->dev_lun); 1054 1055 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1056 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { 1057 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { 1058 found = 1; 1059 res->target = gscsi_res->target; 1060 break; 1061 } 1062 } 1063 if (!found) { 1064 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1065 ioa_cfg->max_devs_supported); 1066 set_bit(res->target, ioa_cfg->target_ids); 1067 } 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 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn); 1099 } 1100 1101 ipr_update_ata_class(res, proto); 1102} 1103 1104/** 1105 * ipr_is_same_device - Determine if two devices are the same. 1106 * @res: resource entry struct 1107 * @cfgtew: config table entry wrapper struct 1108 * 1109 * Return value: 1110 * 1 if the devices are the same / 0 otherwise 1111 **/ 1112static int ipr_is_same_device(struct ipr_resource_entry *res, 1113 struct ipr_config_table_entry_wrapper *cfgtew) 1114{ 1115 if (res->ioa_cfg->sis64) { 1116 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, 1117 sizeof(cfgtew->u.cfgte64->dev_id)) && 1118 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1119 sizeof(cfgtew->u.cfgte64->lun))) { 1120 return 1; 1121 } 1122 } else { 1123 if (res->bus == cfgtew->u.cfgte->res_addr.bus && 1124 res->target == cfgtew->u.cfgte->res_addr.target && 1125 res->lun == cfgtew->u.cfgte->res_addr.lun) 1126 return 1; 1127 } 1128 1129 return 0; 1130} 1131 1132/** 1133 * ipr_format_res_path - Format the resource path for printing. 1134 * @res_path: resource path 1135 * @buf: buffer 1136 * 1137 * Return value: 1138 * pointer to buffer 1139 **/ 1140static char *ipr_format_res_path(u8 *res_path, char *buffer, int len) 1141{ 1142 int i; 1143 char *p = buffer; 1144 1145 *p = '\0'; 1146 p += snprintf(p, buffer + len - p, "%02X", res_path[0]); 1147 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++) 1148 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]); 1149 1150 return buffer; 1151} 1152 1153/** 1154 * ipr_update_res_entry - Update the resource entry. 1155 * @res: resource entry struct 1156 * @cfgtew: config table entry wrapper struct 1157 * 1158 * Return value: 1159 * none 1160 **/ 1161static void ipr_update_res_entry(struct ipr_resource_entry *res, 1162 struct ipr_config_table_entry_wrapper *cfgtew) 1163{ 1164 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1165 unsigned int proto; 1166 int new_path = 0; 1167 1168 if (res->ioa_cfg->sis64) { 1169 res->flags = cfgtew->u.cfgte64->flags; 1170 res->res_flags = cfgtew->u.cfgte64->res_flags; 1171 res->type = cfgtew->u.cfgte64->res_type; 1172 1173 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, 1174 sizeof(struct ipr_std_inq_data)); 1175 1176 res->qmodel = IPR_QUEUEING_MODEL64(res); 1177 proto = cfgtew->u.cfgte64->proto; 1178 res->res_handle = cfgtew->u.cfgte64->res_handle; 1179 res->dev_id = cfgtew->u.cfgte64->dev_id; 1180 1181 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1182 sizeof(res->dev_lun.scsi_lun)); 1183 1184 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, 1185 sizeof(res->res_path))) { 1186 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1187 sizeof(res->res_path)); 1188 new_path = 1; 1189 } 1190 1191 if (res->sdev && new_path) 1192 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", 1193 ipr_format_res_path(res->res_path, buffer, 1194 sizeof(buffer))); 1195 } else { 1196 res->flags = cfgtew->u.cfgte->flags; 1197 if (res->flags & IPR_IS_IOA_RESOURCE) 1198 res->type = IPR_RES_TYPE_IOAFP; 1199 else 1200 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1201 1202 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, 1203 sizeof(struct ipr_std_inq_data)); 1204 1205 res->qmodel = IPR_QUEUEING_MODEL(res); 1206 proto = cfgtew->u.cfgte->proto; 1207 res->res_handle = cfgtew->u.cfgte->res_handle; 1208 } 1209 1210 ipr_update_ata_class(res, proto); 1211} 1212 1213/** 1214 * ipr_clear_res_target - Clear the bit in the bit map representing the target 1215 * for the resource. 1216 * @res: resource entry struct 1217 * @cfgtew: config table entry wrapper struct 1218 * 1219 * Return value: 1220 * none 1221 **/ 1222static void ipr_clear_res_target(struct ipr_resource_entry *res) 1223{ 1224 struct ipr_resource_entry *gscsi_res = NULL; 1225 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1226 1227 if (!ioa_cfg->sis64) 1228 return; 1229 1230 if (res->bus == IPR_ARRAY_VIRTUAL_BUS) 1231 clear_bit(res->target, ioa_cfg->array_ids); 1232 else if (res->bus == IPR_VSET_VIRTUAL_BUS) 1233 clear_bit(res->target, ioa_cfg->vset_ids); 1234 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1235 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) 1236 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) 1237 return; 1238 clear_bit(res->target, ioa_cfg->target_ids); 1239 1240 } else if (res->bus == 0) 1241 clear_bit(res->target, ioa_cfg->target_ids); 1242} 1243 1244/** 1245 * ipr_handle_config_change - Handle a config change from the adapter 1246 * @ioa_cfg: ioa config struct 1247 * @hostrcb: hostrcb 1248 * 1249 * Return value: 1250 * none 1251 **/ 1252static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 1253 struct ipr_hostrcb *hostrcb) 1254{ 1255 struct ipr_resource_entry *res = NULL; 1256 struct ipr_config_table_entry_wrapper cfgtew; 1257 __be32 cc_res_handle; 1258 1259 u32 is_ndn = 1; 1260 1261 if (ioa_cfg->sis64) { 1262 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; 1263 cc_res_handle = cfgtew.u.cfgte64->res_handle; 1264 } else { 1265 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; 1266 cc_res_handle = cfgtew.u.cfgte->res_handle; 1267 } 1268 1269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1270 if (res->res_handle == cc_res_handle) { 1271 is_ndn = 0; 1272 break; 1273 } 1274 } 1275 1276 if (is_ndn) { 1277 if (list_empty(&ioa_cfg->free_res_q)) { 1278 ipr_send_hcam(ioa_cfg, 1279 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 1280 hostrcb); 1281 return; 1282 } 1283 1284 res = list_entry(ioa_cfg->free_res_q.next, 1285 struct ipr_resource_entry, queue); 1286 1287 list_del(&res->queue); 1288 ipr_init_res_entry(res, &cfgtew); 1289 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 1290 } 1291 1292 ipr_update_res_entry(res, &cfgtew); 1293 1294 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 1295 if (res->sdev) { 1296 res->del_from_ml = 1; 1297 res->res_handle = IPR_INVALID_RES_HANDLE; 1298 if (ioa_cfg->allow_ml_add_del) 1299 schedule_work(&ioa_cfg->work_q); 1300 } else { 1301 ipr_clear_res_target(res); 1302 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 1303 } 1304 } else if (!res->sdev) { 1305 res->add_to_ml = 1; 1306 if (ioa_cfg->allow_ml_add_del) 1307 schedule_work(&ioa_cfg->work_q); 1308 } 1309 1310 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1311} 1312 1313/** 1314 * ipr_process_ccn - Op done function for a CCN. 1315 * @ipr_cmd: ipr command struct 1316 * 1317 * This function is the op done function for a configuration 1318 * change notification host controlled async from the adapter. 1319 * 1320 * Return value: 1321 * none 1322 **/ 1323static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 1324{ 1325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1326 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1327 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 1328 1329 list_del(&hostrcb->queue); 1330 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1331 1332 if (ioasc) { 1333 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 1334 dev_err(&ioa_cfg->pdev->dev, 1335 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1336 1337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1338 } else { 1339 ipr_handle_config_change(ioa_cfg, hostrcb); 1340 } 1341} 1342 1343/** 1344 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 1345 * @i: index into buffer 1346 * @buf: string to modify 1347 * 1348 * This function will strip all trailing whitespace, pad the end 1349 * of the string with a single space, and NULL terminate the string. 1350 * 1351 * Return value: 1352 * new length of string 1353 **/ 1354static int strip_and_pad_whitespace(int i, char *buf) 1355{ 1356 while (i && buf[i] == ' ') 1357 i--; 1358 buf[i+1] = ' '; 1359 buf[i+2] = '\0'; 1360 return i + 2; 1361} 1362 1363/** 1364 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 1365 * @prefix: string to print at start of printk 1366 * @hostrcb: hostrcb pointer 1367 * @vpd: vendor/product id/sn struct 1368 * 1369 * Return value: 1370 * none 1371 **/ 1372static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1373 struct ipr_vpd *vpd) 1374{ 1375 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 1376 int i = 0; 1377 1378 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1379 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 1380 1381 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 1382 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 1383 1384 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1385 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1386 1387 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1388} 1389 1390/** 1391 * ipr_log_vpd - Log the passed VPD to the error log. 1392 * @vpd: vendor/product id/sn struct 1393 * 1394 * Return value: 1395 * none 1396 **/ 1397static void ipr_log_vpd(struct ipr_vpd *vpd) 1398{ 1399 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1400 + IPR_SERIAL_NUM_LEN]; 1401 1402 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1403 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1404 IPR_PROD_ID_LEN); 1405 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1406 ipr_err("Vendor/Product ID: %s\n", buffer); 1407 1408 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1409 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1410 ipr_err(" Serial Number: %s\n", buffer); 1411} 1412 1413/** 1414 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1415 * @prefix: string to print at start of printk 1416 * @hostrcb: hostrcb pointer 1417 * @vpd: vendor/product id/sn/wwn struct 1418 * 1419 * Return value: 1420 * none 1421 **/ 1422static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1423 struct ipr_ext_vpd *vpd) 1424{ 1425 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1426 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1427 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1428} 1429 1430/** 1431 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1432 * @vpd: vendor/product id/sn/wwn struct 1433 * 1434 * Return value: 1435 * none 1436 **/ 1437static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1438{ 1439 ipr_log_vpd(&vpd->vpd); 1440 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1441 be32_to_cpu(vpd->wwid[1])); 1442} 1443 1444/** 1445 * ipr_log_enhanced_cache_error - Log a cache error. 1446 * @ioa_cfg: ioa config struct 1447 * @hostrcb: hostrcb struct 1448 * 1449 * Return value: 1450 * none 1451 **/ 1452static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1453 struct ipr_hostrcb *hostrcb) 1454{ 1455 struct ipr_hostrcb_type_12_error *error; 1456 1457 if (ioa_cfg->sis64) 1458 error = &hostrcb->hcam.u.error64.u.type_12_error; 1459 else 1460 error = &hostrcb->hcam.u.error.u.type_12_error; 1461 1462 ipr_err("-----Current Configuration-----\n"); 1463 ipr_err("Cache Directory Card Information:\n"); 1464 ipr_log_ext_vpd(&error->ioa_vpd); 1465 ipr_err("Adapter Card Information:\n"); 1466 ipr_log_ext_vpd(&error->cfc_vpd); 1467 1468 ipr_err("-----Expected Configuration-----\n"); 1469 ipr_err("Cache Directory Card Information:\n"); 1470 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1471 ipr_err("Adapter Card Information:\n"); 1472 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1473 1474 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1475 be32_to_cpu(error->ioa_data[0]), 1476 be32_to_cpu(error->ioa_data[1]), 1477 be32_to_cpu(error->ioa_data[2])); 1478} 1479 1480/** 1481 * ipr_log_cache_error - Log a cache error. 1482 * @ioa_cfg: ioa config struct 1483 * @hostrcb: hostrcb struct 1484 * 1485 * Return value: 1486 * none 1487 **/ 1488static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1489 struct ipr_hostrcb *hostrcb) 1490{ 1491 struct ipr_hostrcb_type_02_error *error = 1492 &hostrcb->hcam.u.error.u.type_02_error; 1493 1494 ipr_err("-----Current Configuration-----\n"); 1495 ipr_err("Cache Directory Card Information:\n"); 1496 ipr_log_vpd(&error->ioa_vpd); 1497 ipr_err("Adapter Card Information:\n"); 1498 ipr_log_vpd(&error->cfc_vpd); 1499 1500 ipr_err("-----Expected Configuration-----\n"); 1501 ipr_err("Cache Directory Card Information:\n"); 1502 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1503 ipr_err("Adapter Card Information:\n"); 1504 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1505 1506 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1507 be32_to_cpu(error->ioa_data[0]), 1508 be32_to_cpu(error->ioa_data[1]), 1509 be32_to_cpu(error->ioa_data[2])); 1510} 1511 1512/** 1513 * ipr_log_enhanced_config_error - Log a configuration error. 1514 * @ioa_cfg: ioa config struct 1515 * @hostrcb: hostrcb struct 1516 * 1517 * Return value: 1518 * none 1519 **/ 1520static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1521 struct ipr_hostrcb *hostrcb) 1522{ 1523 int errors_logged, i; 1524 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1525 struct ipr_hostrcb_type_13_error *error; 1526 1527 error = &hostrcb->hcam.u.error.u.type_13_error; 1528 errors_logged = be32_to_cpu(error->errors_logged); 1529 1530 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1531 be32_to_cpu(error->errors_detected), errors_logged); 1532 1533 dev_entry = error->dev; 1534 1535 for (i = 0; i < errors_logged; i++, dev_entry++) { 1536 ipr_err_separator; 1537 1538 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1539 ipr_log_ext_vpd(&dev_entry->vpd); 1540 1541 ipr_err("-----New Device Information-----\n"); 1542 ipr_log_ext_vpd(&dev_entry->new_vpd); 1543 1544 ipr_err("Cache Directory Card Information:\n"); 1545 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1546 1547 ipr_err("Adapter Card Information:\n"); 1548 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1549 } 1550} 1551 1552/** 1553 * ipr_log_sis64_config_error - Log a device error. 1554 * @ioa_cfg: ioa config struct 1555 * @hostrcb: hostrcb struct 1556 * 1557 * Return value: 1558 * none 1559 **/ 1560static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, 1561 struct ipr_hostrcb *hostrcb) 1562{ 1563 int errors_logged, i; 1564 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; 1565 struct ipr_hostrcb_type_23_error *error; 1566 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1567 1568 error = &hostrcb->hcam.u.error64.u.type_23_error; 1569 errors_logged = be32_to_cpu(error->errors_logged); 1570 1571 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1572 be32_to_cpu(error->errors_detected), errors_logged); 1573 1574 dev_entry = error->dev; 1575 1576 for (i = 0; i < errors_logged; i++, dev_entry++) { 1577 ipr_err_separator; 1578 1579 ipr_err("Device %d : %s", i + 1, 1580 ipr_format_res_path(dev_entry->res_path, buffer, 1581 sizeof(buffer))); 1582 ipr_log_ext_vpd(&dev_entry->vpd); 1583 1584 ipr_err("-----New Device Information-----\n"); 1585 ipr_log_ext_vpd(&dev_entry->new_vpd); 1586 1587 ipr_err("Cache Directory Card Information:\n"); 1588 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1589 1590 ipr_err("Adapter Card Information:\n"); 1591 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1592 } 1593} 1594 1595/** 1596 * ipr_log_config_error - Log a configuration error. 1597 * @ioa_cfg: ioa config struct 1598 * @hostrcb: hostrcb struct 1599 * 1600 * Return value: 1601 * none 1602 **/ 1603static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1604 struct ipr_hostrcb *hostrcb) 1605{ 1606 int errors_logged, i; 1607 struct ipr_hostrcb_device_data_entry *dev_entry; 1608 struct ipr_hostrcb_type_03_error *error; 1609 1610 error = &hostrcb->hcam.u.error.u.type_03_error; 1611 errors_logged = be32_to_cpu(error->errors_logged); 1612 1613 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1614 be32_to_cpu(error->errors_detected), errors_logged); 1615 1616 dev_entry = error->dev; 1617 1618 for (i = 0; i < errors_logged; i++, dev_entry++) { 1619 ipr_err_separator; 1620 1621 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1622 ipr_log_vpd(&dev_entry->vpd); 1623 1624 ipr_err("-----New Device Information-----\n"); 1625 ipr_log_vpd(&dev_entry->new_vpd); 1626 1627 ipr_err("Cache Directory Card Information:\n"); 1628 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1629 1630 ipr_err("Adapter Card Information:\n"); 1631 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1632 1633 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1634 be32_to_cpu(dev_entry->ioa_data[0]), 1635 be32_to_cpu(dev_entry->ioa_data[1]), 1636 be32_to_cpu(dev_entry->ioa_data[2]), 1637 be32_to_cpu(dev_entry->ioa_data[3]), 1638 be32_to_cpu(dev_entry->ioa_data[4])); 1639 } 1640} 1641 1642/** 1643 * ipr_log_enhanced_array_error - Log an array configuration error. 1644 * @ioa_cfg: ioa config struct 1645 * @hostrcb: hostrcb struct 1646 * 1647 * Return value: 1648 * none 1649 **/ 1650static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1651 struct ipr_hostrcb *hostrcb) 1652{ 1653 int i, num_entries; 1654 struct ipr_hostrcb_type_14_error *error; 1655 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1656 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1657 1658 error = &hostrcb->hcam.u.error.u.type_14_error; 1659 1660 ipr_err_separator; 1661 1662 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1663 error->protection_level, 1664 ioa_cfg->host->host_no, 1665 error->last_func_vset_res_addr.bus, 1666 error->last_func_vset_res_addr.target, 1667 error->last_func_vset_res_addr.lun); 1668 1669 ipr_err_separator; 1670 1671 array_entry = error->array_member; 1672 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1673 ARRAY_SIZE(error->array_member)); 1674 1675 for (i = 0; i < num_entries; i++, array_entry++) { 1676 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1677 continue; 1678 1679 if (be32_to_cpu(error->exposed_mode_adn) == i) 1680 ipr_err("Exposed Array Member %d:\n", i); 1681 else 1682 ipr_err("Array Member %d:\n", i); 1683 1684 ipr_log_ext_vpd(&array_entry->vpd); 1685 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1686 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1687 "Expected Location"); 1688 1689 ipr_err_separator; 1690 } 1691} 1692 1693/** 1694 * ipr_log_array_error - Log an array configuration error. 1695 * @ioa_cfg: ioa config struct 1696 * @hostrcb: hostrcb struct 1697 * 1698 * Return value: 1699 * none 1700 **/ 1701static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1702 struct ipr_hostrcb *hostrcb) 1703{ 1704 int i; 1705 struct ipr_hostrcb_type_04_error *error; 1706 struct ipr_hostrcb_array_data_entry *array_entry; 1707 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1708 1709 error = &hostrcb->hcam.u.error.u.type_04_error; 1710 1711 ipr_err_separator; 1712 1713 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1714 error->protection_level, 1715 ioa_cfg->host->host_no, 1716 error->last_func_vset_res_addr.bus, 1717 error->last_func_vset_res_addr.target, 1718 error->last_func_vset_res_addr.lun); 1719 1720 ipr_err_separator; 1721 1722 array_entry = error->array_member; 1723 1724 for (i = 0; i < 18; i++) { 1725 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1726 continue; 1727 1728 if (be32_to_cpu(error->exposed_mode_adn) == i) 1729 ipr_err("Exposed Array Member %d:\n", i); 1730 else 1731 ipr_err("Array Member %d:\n", i); 1732 1733 ipr_log_vpd(&array_entry->vpd); 1734 1735 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1736 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1737 "Expected Location"); 1738 1739 ipr_err_separator; 1740 1741 if (i == 9) 1742 array_entry = error->array_member2; 1743 else 1744 array_entry++; 1745 } 1746} 1747 1748/** 1749 * ipr_log_hex_data - Log additional hex IOA error data. 1750 * @ioa_cfg: ioa config struct 1751 * @data: IOA error data 1752 * @len: data length 1753 * 1754 * Return value: 1755 * none 1756 **/ 1757static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1758{ 1759 int i; 1760 1761 if (len == 0) 1762 return; 1763 1764 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1765 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1766 1767 for (i = 0; i < len / 4; i += 4) { 1768 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1769 be32_to_cpu(data[i]), 1770 be32_to_cpu(data[i+1]), 1771 be32_to_cpu(data[i+2]), 1772 be32_to_cpu(data[i+3])); 1773 } 1774} 1775 1776/** 1777 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1778 * @ioa_cfg: ioa config struct 1779 * @hostrcb: hostrcb struct 1780 * 1781 * Return value: 1782 * none 1783 **/ 1784static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1785 struct ipr_hostrcb *hostrcb) 1786{ 1787 struct ipr_hostrcb_type_17_error *error; 1788 1789 if (ioa_cfg->sis64) 1790 error = &hostrcb->hcam.u.error64.u.type_17_error; 1791 else 1792 error = &hostrcb->hcam.u.error.u.type_17_error; 1793 1794 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1795 strim(error->failure_reason); 1796 1797 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1798 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1799 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1800 ipr_log_hex_data(ioa_cfg, error->data, 1801 be32_to_cpu(hostrcb->hcam.length) - 1802 (offsetof(struct ipr_hostrcb_error, u) + 1803 offsetof(struct ipr_hostrcb_type_17_error, data))); 1804} 1805 1806/** 1807 * ipr_log_dual_ioa_error - Log a dual adapter error. 1808 * @ioa_cfg: ioa config struct 1809 * @hostrcb: hostrcb struct 1810 * 1811 * Return value: 1812 * none 1813 **/ 1814static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1815 struct ipr_hostrcb *hostrcb) 1816{ 1817 struct ipr_hostrcb_type_07_error *error; 1818 1819 error = &hostrcb->hcam.u.error.u.type_07_error; 1820 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1821 strim(error->failure_reason); 1822 1823 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1824 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1825 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1826 ipr_log_hex_data(ioa_cfg, error->data, 1827 be32_to_cpu(hostrcb->hcam.length) - 1828 (offsetof(struct ipr_hostrcb_error, u) + 1829 offsetof(struct ipr_hostrcb_type_07_error, data))); 1830} 1831 1832static const struct { 1833 u8 active; 1834 char *desc; 1835} path_active_desc[] = { 1836 { IPR_PATH_NO_INFO, "Path" }, 1837 { IPR_PATH_ACTIVE, "Active path" }, 1838 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1839}; 1840 1841static const struct { 1842 u8 state; 1843 char *desc; 1844} path_state_desc[] = { 1845 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1846 { IPR_PATH_HEALTHY, "is healthy" }, 1847 { IPR_PATH_DEGRADED, "is degraded" }, 1848 { IPR_PATH_FAILED, "is failed" } 1849}; 1850 1851/** 1852 * ipr_log_fabric_path - Log a fabric path error 1853 * @hostrcb: hostrcb struct 1854 * @fabric: fabric descriptor 1855 * 1856 * Return value: 1857 * none 1858 **/ 1859static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1860 struct ipr_hostrcb_fabric_desc *fabric) 1861{ 1862 int i, j; 1863 u8 path_state = fabric->path_state; 1864 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1865 u8 state = path_state & IPR_PATH_STATE_MASK; 1866 1867 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1868 if (path_active_desc[i].active != active) 1869 continue; 1870 1871 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1872 if (path_state_desc[j].state != state) 1873 continue; 1874 1875 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1876 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1877 path_active_desc[i].desc, path_state_desc[j].desc, 1878 fabric->ioa_port); 1879 } else if (fabric->cascaded_expander == 0xff) { 1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1881 path_active_desc[i].desc, path_state_desc[j].desc, 1882 fabric->ioa_port, fabric->phy); 1883 } else if (fabric->phy == 0xff) { 1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1885 path_active_desc[i].desc, path_state_desc[j].desc, 1886 fabric->ioa_port, fabric->cascaded_expander); 1887 } else { 1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1889 path_active_desc[i].desc, path_state_desc[j].desc, 1890 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1891 } 1892 return; 1893 } 1894 } 1895 1896 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1897 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1898} 1899 1900/** 1901 * ipr_log64_fabric_path - Log a fabric path error 1902 * @hostrcb: hostrcb struct 1903 * @fabric: fabric descriptor 1904 * 1905 * Return value: 1906 * none 1907 **/ 1908static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, 1909 struct ipr_hostrcb64_fabric_desc *fabric) 1910{ 1911 int i, j; 1912 u8 path_state = fabric->path_state; 1913 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1914 u8 state = path_state & IPR_PATH_STATE_MASK; 1915 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1916 1917 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1918 if (path_active_desc[i].active != active) 1919 continue; 1920 1921 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1922 if (path_state_desc[j].state != state) 1923 continue; 1924 1925 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", 1926 path_active_desc[i].desc, path_state_desc[j].desc, 1927 ipr_format_res_path(fabric->res_path, buffer, 1928 sizeof(buffer))); 1929 return; 1930 } 1931 } 1932 1933 ipr_err("Path state=%02X Resource Path=%s\n", path_state, 1934 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer))); 1935} 1936 1937static const struct { 1938 u8 type; 1939 char *desc; 1940} path_type_desc[] = { 1941 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1942 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1943 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1944 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1945}; 1946 1947static const struct { 1948 u8 status; 1949 char *desc; 1950} path_status_desc[] = { 1951 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1952 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1953 { IPR_PATH_CFG_FAILED, "Failed" }, 1954 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1955 { IPR_PATH_NOT_DETECTED, "Missing" }, 1956 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1957}; 1958 1959static const char *link_rate[] = { 1960 "unknown", 1961 "disabled", 1962 "phy reset problem", 1963 "spinup hold", 1964 "port selector", 1965 "unknown", 1966 "unknown", 1967 "unknown", 1968 "1.5Gbps", 1969 "3.0Gbps", 1970 "unknown", 1971 "unknown", 1972 "unknown", 1973 "unknown", 1974 "unknown", 1975 "unknown" 1976}; 1977 1978/** 1979 * ipr_log_path_elem - Log a fabric path element. 1980 * @hostrcb: hostrcb struct 1981 * @cfg: fabric path element struct 1982 * 1983 * Return value: 1984 * none 1985 **/ 1986static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1987 struct ipr_hostrcb_config_element *cfg) 1988{ 1989 int i, j; 1990 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1991 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1992 1993 if (type == IPR_PATH_CFG_NOT_EXIST) 1994 return; 1995 1996 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1997 if (path_type_desc[i].type != type) 1998 continue; 1999 2000 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2001 if (path_status_desc[j].status != status) 2002 continue; 2003 2004 if (type == IPR_PATH_CFG_IOA_PORT) { 2005 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 2006 path_status_desc[j].desc, path_type_desc[i].desc, 2007 cfg->phy, 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 { 2010 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 2011 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 2012 path_status_desc[j].desc, path_type_desc[i].desc, 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->cascaded_expander == 0xff) { 2016 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 2017 "WWN=%08X%08X\n", path_status_desc[j].desc, 2018 path_type_desc[i].desc, cfg->phy, 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 if (cfg->phy == 0xff) { 2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 2023 "WWN=%08X%08X\n", path_status_desc[j].desc, 2024 path_type_desc[i].desc, cfg->cascaded_expander, 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 } else { 2028 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 2029 "WWN=%08X%08X\n", path_status_desc[j].desc, 2030 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2033 } 2034 } 2035 return; 2036 } 2037 } 2038 2039 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 2040 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 2041 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2042 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2043} 2044 2045/** 2046 * ipr_log64_path_elem - Log a fabric path element. 2047 * @hostrcb: hostrcb struct 2048 * @cfg: fabric path element struct 2049 * 2050 * Return value: 2051 * none 2052 **/ 2053static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, 2054 struct ipr_hostrcb64_config_element *cfg) 2055{ 2056 int i, j; 2057 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; 2058 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2059 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2060 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2061 2062 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) 2063 return; 2064 2065 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2066 if (path_type_desc[i].type != type) 2067 continue; 2068 2069 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2070 if (path_status_desc[j].status != status) 2071 continue; 2072 2073 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", 2074 path_status_desc[j].desc, path_type_desc[i].desc, 2075 ipr_format_res_path(cfg->res_path, buffer, 2076 sizeof(buffer)), 2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2079 return; 2080 } 2081 } 2082 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " 2083 "WWN=%08X%08X\n", cfg->type_status, 2084 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)), 2085 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2086 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2087} 2088 2089/** 2090 * ipr_log_fabric_error - Log a fabric error. 2091 * @ioa_cfg: ioa config struct 2092 * @hostrcb: hostrcb struct 2093 * 2094 * Return value: 2095 * none 2096 **/ 2097static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2098 struct ipr_hostrcb *hostrcb) 2099{ 2100 struct ipr_hostrcb_type_20_error *error; 2101 struct ipr_hostrcb_fabric_desc *fabric; 2102 struct ipr_hostrcb_config_element *cfg; 2103 int i, add_len; 2104 2105 error = &hostrcb->hcam.u.error.u.type_20_error; 2106 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2107 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2108 2109 add_len = be32_to_cpu(hostrcb->hcam.length) - 2110 (offsetof(struct ipr_hostrcb_error, u) + 2111 offsetof(struct ipr_hostrcb_type_20_error, desc)); 2112 2113 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2114 ipr_log_fabric_path(hostrcb, fabric); 2115 for_each_fabric_cfg(fabric, cfg) 2116 ipr_log_path_elem(hostrcb, cfg); 2117 2118 add_len -= be16_to_cpu(fabric->length); 2119 fabric = (struct ipr_hostrcb_fabric_desc *) 2120 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2121 } 2122 2123 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2124} 2125 2126/** 2127 * ipr_log_sis64_array_error - Log a sis64 array error. 2128 * @ioa_cfg: ioa config struct 2129 * @hostrcb: hostrcb struct 2130 * 2131 * Return value: 2132 * none 2133 **/ 2134static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, 2135 struct ipr_hostrcb *hostrcb) 2136{ 2137 int i, num_entries; 2138 struct ipr_hostrcb_type_24_error *error; 2139 struct ipr_hostrcb64_array_data_entry *array_entry; 2140 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2141 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 2142 2143 error = &hostrcb->hcam.u.error64.u.type_24_error; 2144 2145 ipr_err_separator; 2146 2147 ipr_err("RAID %s Array Configuration: %s\n", 2148 error->protection_level, 2149 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer))); 2150 2151 ipr_err_separator; 2152 2153 array_entry = error->array_member; 2154 num_entries = min_t(u32, error->num_entries, 2155 ARRAY_SIZE(error->array_member)); 2156 2157 for (i = 0; i < num_entries; i++, array_entry++) { 2158 2159 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 2160 continue; 2161 2162 if (error->exposed_mode_adn == i) 2163 ipr_err("Exposed Array Member %d:\n", i); 2164 else 2165 ipr_err("Array Member %d:\n", i); 2166 2167 ipr_err("Array Member %d:\n", i); 2168 ipr_log_ext_vpd(&array_entry->vpd); 2169 ipr_err("Current Location: %s\n", 2170 ipr_format_res_path(array_entry->res_path, buffer, 2171 sizeof(buffer))); 2172 ipr_err("Expected Location: %s\n", 2173 ipr_format_res_path(array_entry->expected_res_path, 2174 buffer, sizeof(buffer))); 2175 2176 ipr_err_separator; 2177 } 2178} 2179 2180/** 2181 * ipr_log_sis64_fabric_error - Log a sis64 fabric error. 2182 * @ioa_cfg: ioa config struct 2183 * @hostrcb: hostrcb struct 2184 * 2185 * Return value: 2186 * none 2187 **/ 2188static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2189 struct ipr_hostrcb *hostrcb) 2190{ 2191 struct ipr_hostrcb_type_30_error *error; 2192 struct ipr_hostrcb64_fabric_desc *fabric; 2193 struct ipr_hostrcb64_config_element *cfg; 2194 int i, add_len; 2195 2196 error = &hostrcb->hcam.u.error64.u.type_30_error; 2197 2198 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2199 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2200 2201 add_len = be32_to_cpu(hostrcb->hcam.length) - 2202 (offsetof(struct ipr_hostrcb64_error, u) + 2203 offsetof(struct ipr_hostrcb_type_30_error, desc)); 2204 2205 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2206 ipr_log64_fabric_path(hostrcb, fabric); 2207 for_each_fabric_cfg(fabric, cfg) 2208 ipr_log64_path_elem(hostrcb, cfg); 2209 2210 add_len -= be16_to_cpu(fabric->length); 2211 fabric = (struct ipr_hostrcb64_fabric_desc *) 2212 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2213 } 2214 2215 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2216} 2217 2218/** 2219 * ipr_log_generic_error - Log an adapter error. 2220 * @ioa_cfg: ioa config struct 2221 * @hostrcb: hostrcb struct 2222 * 2223 * Return value: 2224 * none 2225 **/ 2226static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 2227 struct ipr_hostrcb *hostrcb) 2228{ 2229 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 2230 be32_to_cpu(hostrcb->hcam.length)); 2231} 2232 2233/** 2234 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 2235 * @ioasc: IOASC 2236 * 2237 * This function will return the index of into the ipr_error_table 2238 * for the specified IOASC. If the IOASC is not in the table, 2239 * 0 will be returned, which points to the entry used for unknown errors. 2240 * 2241 * Return value: 2242 * index into the ipr_error_table 2243 **/ 2244static u32 ipr_get_error(u32 ioasc) 2245{ 2246 int i; 2247 2248 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 2249 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 2250 return i; 2251 2252 return 0; 2253} 2254 2255/** 2256 * ipr_handle_log_data - Log an adapter error. 2257 * @ioa_cfg: ioa config struct 2258 * @hostrcb: hostrcb struct 2259 * 2260 * This function logs an adapter error to the system. 2261 * 2262 * Return value: 2263 * none 2264 **/ 2265static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 2266 struct ipr_hostrcb *hostrcb) 2267{ 2268 u32 ioasc; 2269 int error_index; 2270 2271 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 2272 return; 2273 2274 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 2275 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 2276 2277 if (ioa_cfg->sis64) 2278 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2279 else 2280 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2281 2282 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || 2283 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { 2284 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 2285 scsi_report_bus_reset(ioa_cfg->host, 2286 hostrcb->hcam.u.error.fd_res_addr.bus); 2287 } 2288 2289 error_index = ipr_get_error(ioasc); 2290 2291 if (!ipr_error_table[error_index].log_hcam) 2292 return; 2293 2294 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 2295 2296 /* Set indication we have logged an error */ 2297 ioa_cfg->errors_logged++; 2298 2299 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 2300 return; 2301 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 2302 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 2303 2304 switch (hostrcb->hcam.overlay_id) { 2305 case IPR_HOST_RCB_OVERLAY_ID_2: 2306 ipr_log_cache_error(ioa_cfg, hostrcb); 2307 break; 2308 case IPR_HOST_RCB_OVERLAY_ID_3: 2309 ipr_log_config_error(ioa_cfg, hostrcb); 2310 break; 2311 case IPR_HOST_RCB_OVERLAY_ID_4: 2312 case IPR_HOST_RCB_OVERLAY_ID_6: 2313 ipr_log_array_error(ioa_cfg, hostrcb); 2314 break; 2315 case IPR_HOST_RCB_OVERLAY_ID_7: 2316 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 2317 break; 2318 case IPR_HOST_RCB_OVERLAY_ID_12: 2319 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 2320 break; 2321 case IPR_HOST_RCB_OVERLAY_ID_13: 2322 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 2323 break; 2324 case IPR_HOST_RCB_OVERLAY_ID_14: 2325 case IPR_HOST_RCB_OVERLAY_ID_16: 2326 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 2327 break; 2328 case IPR_HOST_RCB_OVERLAY_ID_17: 2329 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 2330 break; 2331 case IPR_HOST_RCB_OVERLAY_ID_20: 2332 ipr_log_fabric_error(ioa_cfg, hostrcb); 2333 break; 2334 case IPR_HOST_RCB_OVERLAY_ID_23: 2335 ipr_log_sis64_config_error(ioa_cfg, hostrcb); 2336 break; 2337 case IPR_HOST_RCB_OVERLAY_ID_24: 2338 case IPR_HOST_RCB_OVERLAY_ID_26: 2339 ipr_log_sis64_array_error(ioa_cfg, hostrcb); 2340 break; 2341 case IPR_HOST_RCB_OVERLAY_ID_30: 2342 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); 2343 break; 2344 case IPR_HOST_RCB_OVERLAY_ID_1: 2345 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 2346 default: 2347 ipr_log_generic_error(ioa_cfg, hostrcb); 2348 break; 2349 } 2350} 2351 2352/** 2353 * ipr_process_error - Op done function for an adapter error log. 2354 * @ipr_cmd: ipr command struct 2355 * 2356 * This function is the op done function for an error log host 2357 * controlled async from the adapter. It will log the error and 2358 * send the HCAM back to the adapter. 2359 * 2360 * Return value: 2361 * none 2362 **/ 2363static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 2364{ 2365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2366 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 2367 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 2368 u32 fd_ioasc; 2369 2370 if (ioa_cfg->sis64) 2371 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2372 else 2373 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2374 2375 list_del(&hostrcb->queue); 2376 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 2377 2378 if (!ioasc) { 2379 ipr_handle_log_data(ioa_cfg, hostrcb); 2380 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 2381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 2382 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 2383 dev_err(&ioa_cfg->pdev->dev, 2384 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 2385 } 2386 2387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 2388} 2389 2390/** 2391 * ipr_timeout - An internally generated op has timed out. 2392 * @ipr_cmd: ipr command struct 2393 * 2394 * This function blocks host requests and initiates an 2395 * adapter reset. 2396 * 2397 * Return value: 2398 * none 2399 **/ 2400static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 2401{ 2402 unsigned long lock_flags = 0; 2403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2404 2405 ENTER; 2406 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2407 2408 ioa_cfg->errors_logged++; 2409 dev_err(&ioa_cfg->pdev->dev, 2410 "Adapter being reset due to command timeout.\n"); 2411 2412 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2413 ioa_cfg->sdt_state = GET_DUMP; 2414 2415 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 2416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2417 2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2419 LEAVE; 2420} 2421 2422/** 2423 * ipr_oper_timeout - Adapter timed out transitioning to operational 2424 * @ipr_cmd: ipr command struct 2425 * 2426 * This function blocks host requests and initiates an 2427 * adapter reset. 2428 * 2429 * Return value: 2430 * none 2431 **/ 2432static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 2433{ 2434 unsigned long lock_flags = 0; 2435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2436 2437 ENTER; 2438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2439 2440 ioa_cfg->errors_logged++; 2441 dev_err(&ioa_cfg->pdev->dev, 2442 "Adapter timed out transitioning to operational.\n"); 2443 2444 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2445 ioa_cfg->sdt_state = GET_DUMP; 2446 2447 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 2448 if (ipr_fastfail) 2449 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 2450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2451 } 2452 2453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2454 LEAVE; 2455} 2456 2457/** 2458 * ipr_reset_reload - Reset/Reload the IOA 2459 * @ioa_cfg: ioa config struct 2460 * @shutdown_type: shutdown type 2461 * 2462 * This function resets the adapter and re-initializes it. 2463 * This function assumes that all new host commands have been stopped. 2464 * Return value: 2465 * SUCCESS / FAILED 2466 **/ 2467static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 2468 enum ipr_shutdown_type shutdown_type) 2469{ 2470 if (!ioa_cfg->in_reset_reload) 2471 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 2472 2473 spin_unlock_irq(ioa_cfg->host->host_lock); 2474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2475 spin_lock_irq(ioa_cfg->host->host_lock); 2476 2477 /* If we got hit with a host reset while we were already resetting 2478 the adapter for some reason, and the reset failed. */ 2479 if (ioa_cfg->ioa_is_dead) { 2480 ipr_trace; 2481 return FAILED; 2482 } 2483 2484 return SUCCESS; 2485} 2486 2487/** 2488 * ipr_find_ses_entry - Find matching SES in SES table 2489 * @res: resource entry struct of SES 2490 * 2491 * Return value: 2492 * pointer to SES table entry / NULL on failure 2493 **/ 2494static const struct ipr_ses_table_entry * 2495ipr_find_ses_entry(struct ipr_resource_entry *res) 2496{ 2497 int i, j, matches; 2498 struct ipr_std_inq_vpids *vpids; 2499 const struct ipr_ses_table_entry *ste = ipr_ses_table; 2500 2501 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 2502 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 2503 if (ste->compare_product_id_byte[j] == 'X') { 2504 vpids = &res->std_inq_data.vpids; 2505 if (vpids->product_id[j] == ste->product_id[j]) 2506 matches++; 2507 else 2508 break; 2509 } else 2510 matches++; 2511 } 2512 2513 if (matches == IPR_PROD_ID_LEN) 2514 return ste; 2515 } 2516 2517 return NULL; 2518} 2519 2520/** 2521 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 2522 * @ioa_cfg: ioa config struct 2523 * @bus: SCSI bus 2524 * @bus_width: bus width 2525 * 2526 * Return value: 2527 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 2528 * For a 2-byte wide SCSI bus, the maximum transfer speed is 2529 * twice the maximum transfer rate (e.g. for a wide enabled bus, 2530 * max 160MHz = max 320MB/sec). 2531 **/ 2532static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 2533{ 2534 struct ipr_resource_entry *res; 2535 const struct ipr_ses_table_entry *ste; 2536 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 2537 2538 /* Loop through each config table entry in the config table buffer */ 2539 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2540 if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) 2541 continue; 2542 2543 if (bus != res->bus) 2544 continue; 2545 2546 if (!(ste = ipr_find_ses_entry(res))) 2547 continue; 2548 2549 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 2550 } 2551 2552 return max_xfer_rate; 2553} 2554 2555/** 2556 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 2557 * @ioa_cfg: ioa config struct 2558 * @max_delay: max delay in micro-seconds to wait 2559 * 2560 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 2561 * 2562 * Return value: 2563 * 0 on success / other on failure 2564 **/ 2565static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 2566{ 2567 volatile u32 pcii_reg; 2568 int delay = 1; 2569 2570 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 2571 while (delay < max_delay) { 2572 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 2573 2574 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 2575 return 0; 2576 2577 /* udelay cannot be used if delay is more than a few milliseconds */ 2578 if ((delay / 1000) > MAX_UDELAY_MS) 2579 mdelay(delay / 1000); 2580 else 2581 udelay(delay); 2582 2583 delay += delay; 2584 } 2585 return -EIO; 2586} 2587 2588/** 2589 * ipr_get_sis64_dump_data_section - Dump IOA memory 2590 * @ioa_cfg: ioa config struct 2591 * @start_addr: adapter address to dump 2592 * @dest: destination kernel buffer 2593 * @length_in_words: length to dump in 4 byte words 2594 * 2595 * Return value: 2596 * 0 on success 2597 **/ 2598static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2599 u32 start_addr, 2600 __be32 *dest, u32 length_in_words) 2601{ 2602 int i; 2603 2604 for (i = 0; i < length_in_words; i++) { 2605 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); 2606 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); 2607 dest++; 2608 } 2609 2610 return 0; 2611} 2612 2613/** 2614 * ipr_get_ldump_data_section - Dump IOA memory 2615 * @ioa_cfg: ioa config struct 2616 * @start_addr: adapter address to dump 2617 * @dest: destination kernel buffer 2618 * @length_in_words: length to dump in 4 byte words 2619 * 2620 * Return value: 2621 * 0 on success / -EIO on failure 2622 **/ 2623static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2624 u32 start_addr, 2625 __be32 *dest, u32 length_in_words) 2626{ 2627 volatile u32 temp_pcii_reg; 2628 int i, delay = 0; 2629 2630 if (ioa_cfg->sis64) 2631 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, 2632 dest, length_in_words); 2633 2634 /* Write IOA interrupt reg starting LDUMP state */ 2635 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 2636 ioa_cfg->regs.set_uproc_interrupt_reg32); 2637 2638 /* Wait for IO debug acknowledge */ 2639 if (ipr_wait_iodbg_ack(ioa_cfg, 2640 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 2641 dev_err(&ioa_cfg->pdev->dev, 2642 "IOA dump long data transfer timeout\n"); 2643 return -EIO; 2644 } 2645 2646 /* Signal LDUMP interlocked - clear IO debug ack */ 2647 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2648 ioa_cfg->regs.clr_interrupt_reg); 2649 2650 /* Write Mailbox with starting address */ 2651 writel(start_addr, ioa_cfg->ioa_mailbox); 2652 2653 /* Signal address valid - clear IOA Reset alert */ 2654 writel(IPR_UPROCI_RESET_ALERT, 2655 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2656 2657 for (i = 0; i < length_in_words; i++) { 2658 /* Wait for IO debug acknowledge */ 2659 if (ipr_wait_iodbg_ack(ioa_cfg, 2660 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2661 dev_err(&ioa_cfg->pdev->dev, 2662 "IOA dump short data transfer timeout\n"); 2663 return -EIO; 2664 } 2665 2666 /* Read data from mailbox and increment destination pointer */ 2667 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2668 dest++; 2669 2670 /* For all but the last word of data, signal data received */ 2671 if (i < (length_in_words - 1)) { 2672 /* Signal dump data received - Clear IO debug Ack */ 2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2674 ioa_cfg->regs.clr_interrupt_reg); 2675 } 2676 } 2677 2678 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2679 writel(IPR_UPROCI_RESET_ALERT, 2680 ioa_cfg->regs.set_uproc_interrupt_reg32); 2681 2682 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2683 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2684 2685 /* Signal dump data received - Clear IO debug Ack */ 2686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2687 ioa_cfg->regs.clr_interrupt_reg); 2688 2689 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2690 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2691 temp_pcii_reg = 2692 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 2693 2694 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2695 return 0; 2696 2697 udelay(10); 2698 delay += 10; 2699 } 2700 2701 return 0; 2702} 2703 2704#ifdef CONFIG_SCSI_IPR_DUMP 2705/** 2706 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2707 * @ioa_cfg: ioa config struct 2708 * @pci_address: adapter address 2709 * @length: length of data to copy 2710 * 2711 * Copy data from PCI adapter to kernel buffer. 2712 * Note: length MUST be a 4 byte multiple 2713 * Return value: 2714 * 0 on success / other on failure 2715 **/ 2716static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2717 unsigned long pci_address, u32 length) 2718{ 2719 int bytes_copied = 0; 2720 int cur_len, rc, rem_len, rem_page_len; 2721 __be32 *page; 2722 unsigned long lock_flags = 0; 2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2724 2725 while (bytes_copied < length && 2726 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { 2727 if (ioa_dump->page_offset >= PAGE_SIZE || 2728 ioa_dump->page_offset == 0) { 2729 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2730 2731 if (!page) { 2732 ipr_trace; 2733 return bytes_copied; 2734 } 2735 2736 ioa_dump->page_offset = 0; 2737 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2738 ioa_dump->next_page_index++; 2739 } else 2740 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2741 2742 rem_len = length - bytes_copied; 2743 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2744 cur_len = min(rem_len, rem_page_len); 2745 2746 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2747 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2748 rc = -EIO; 2749 } else { 2750 rc = ipr_get_ldump_data_section(ioa_cfg, 2751 pci_address + bytes_copied, 2752 &page[ioa_dump->page_offset / 4], 2753 (cur_len / sizeof(u32))); 2754 } 2755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2756 2757 if (!rc) { 2758 ioa_dump->page_offset += cur_len; 2759 bytes_copied += cur_len; 2760 } else { 2761 ipr_trace; 2762 break; 2763 } 2764 schedule(); 2765 } 2766 2767 return bytes_copied; 2768} 2769 2770/** 2771 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2772 * @hdr: dump entry header struct 2773 * 2774 * Return value: 2775 * nothing 2776 **/ 2777static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2778{ 2779 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2780 hdr->num_elems = 1; 2781 hdr->offset = sizeof(*hdr); 2782 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2783} 2784 2785/** 2786 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2787 * @ioa_cfg: ioa config struct 2788 * @driver_dump: driver dump struct 2789 * 2790 * Return value: 2791 * nothing 2792 **/ 2793static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2794 struct ipr_driver_dump *driver_dump) 2795{ 2796 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2797 2798 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2799 driver_dump->ioa_type_entry.hdr.len = 2800 sizeof(struct ipr_dump_ioa_type_entry) - 2801 sizeof(struct ipr_dump_entry_header); 2802 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2803 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2804 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2805 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2806 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2807 ucode_vpd->minor_release[1]; 2808 driver_dump->hdr.num_entries++; 2809} 2810 2811/** 2812 * ipr_dump_version_data - Fill in the driver version in the dump. 2813 * @ioa_cfg: ioa config struct 2814 * @driver_dump: driver dump struct 2815 * 2816 * Return value: 2817 * nothing 2818 **/ 2819static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2820 struct ipr_driver_dump *driver_dump) 2821{ 2822 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2823 driver_dump->version_entry.hdr.len = 2824 sizeof(struct ipr_dump_version_entry) - 2825 sizeof(struct ipr_dump_entry_header); 2826 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2827 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2828 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2829 driver_dump->hdr.num_entries++; 2830} 2831 2832/** 2833 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2834 * @ioa_cfg: ioa config struct 2835 * @driver_dump: driver dump struct 2836 * 2837 * Return value: 2838 * nothing 2839 **/ 2840static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2841 struct ipr_driver_dump *driver_dump) 2842{ 2843 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2844 driver_dump->trace_entry.hdr.len = 2845 sizeof(struct ipr_dump_trace_entry) - 2846 sizeof(struct ipr_dump_entry_header); 2847 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2848 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2849 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2850 driver_dump->hdr.num_entries++; 2851} 2852 2853/** 2854 * ipr_dump_location_data - Fill in the IOA location in the dump. 2855 * @ioa_cfg: ioa config struct 2856 * @driver_dump: driver dump struct 2857 * 2858 * Return value: 2859 * nothing 2860 **/ 2861static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2862 struct ipr_driver_dump *driver_dump) 2863{ 2864 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2865 driver_dump->location_entry.hdr.len = 2866 sizeof(struct ipr_dump_location_entry) - 2867 sizeof(struct ipr_dump_entry_header); 2868 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2869 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2870 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2871 driver_dump->hdr.num_entries++; 2872} 2873 2874/** 2875 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2876 * @ioa_cfg: ioa config struct 2877 * @dump: dump struct 2878 * 2879 * Return value: 2880 * nothing 2881 **/ 2882static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2883{ 2884 unsigned long start_addr, sdt_word; 2885 unsigned long lock_flags = 0; 2886 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2887 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2888 u32 num_entries, start_off, end_off; 2889 u32 bytes_to_copy, bytes_copied, rc; 2890 struct ipr_sdt *sdt; 2891 int valid = 1; 2892 int i; 2893 2894 ENTER; 2895 2896 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2897 2898 if (ioa_cfg->sdt_state != GET_DUMP) { 2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2900 return; 2901 } 2902 2903 if (ioa_cfg->sis64) { 2904 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2905 ssleep(IPR_DUMP_DELAY_SECONDS); 2906 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2907 } 2908 2909 start_addr = readl(ioa_cfg->ioa_mailbox); 2910 2911 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { 2912 dev_err(&ioa_cfg->pdev->dev, 2913 "Invalid dump table format: %lx\n", start_addr); 2914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2915 return; 2916 } 2917 2918 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2919 2920 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2921 2922 /* Initialize the overall dump header */ 2923 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2924 driver_dump->hdr.num_entries = 1; 2925 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2926 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2927 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2928 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2929 2930 ipr_dump_version_data(ioa_cfg, driver_dump); 2931 ipr_dump_location_data(ioa_cfg, driver_dump); 2932 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2933 ipr_dump_trace_data(ioa_cfg, driver_dump); 2934 2935 /* Update dump_header */ 2936 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2937 2938 /* IOA Dump entry */ 2939 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2940 ioa_dump->hdr.len = 0; 2941 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2942 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2943 2944 /* First entries in sdt are actually a list of dump addresses and 2945 lengths to gather the real dump data. sdt represents the pointer 2946 to the ioa generated dump table. Dump data will be extracted based 2947 on entries in this table */ 2948 sdt = &ioa_dump->sdt; 2949 2950 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2951 sizeof(struct ipr_sdt) / sizeof(__be32)); 2952 2953 /* Smart Dump table is ready to use and the first entry is valid */ 2954 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 2955 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 2956 dev_err(&ioa_cfg->pdev->dev, 2957 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2958 rc, be32_to_cpu(sdt->hdr.state)); 2959 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2960 ioa_cfg->sdt_state = DUMP_OBTAINED; 2961 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2962 return; 2963 } 2964 2965 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2966 2967 if (num_entries > IPR_NUM_SDT_ENTRIES) 2968 num_entries = IPR_NUM_SDT_ENTRIES; 2969 2970 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2971 2972 for (i = 0; i < num_entries; i++) { 2973 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { 2974 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2975 break; 2976 } 2977 2978 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 2979 sdt_word = be32_to_cpu(sdt->entry[i].start_token); 2980 if (ioa_cfg->sis64) 2981 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); 2982 else { 2983 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 2984 end_off = be32_to_cpu(sdt->entry[i].end_token); 2985 2986 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) 2987 bytes_to_copy = end_off - start_off; 2988 else 2989 valid = 0; 2990 } 2991 if (valid) { 2992 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { 2993 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 2994 continue; 2995 } 2996 2997 /* Copy data from adapter to driver buffers */ 2998 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 2999 bytes_to_copy); 3000 3001 ioa_dump->hdr.len += bytes_copied; 3002 3003 if (bytes_copied != bytes_to_copy) { 3004 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 3005 break; 3006 } 3007 } 3008 } 3009 } 3010 3011 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 3012 3013 /* Update dump_header */ 3014 driver_dump->hdr.len += ioa_dump->hdr.len; 3015 wmb(); 3016 ioa_cfg->sdt_state = DUMP_OBTAINED; 3017 LEAVE; 3018} 3019 3020#else 3021#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 3022#endif 3023 3024/** 3025 * ipr_release_dump - Free adapter dump memory 3026 * @kref: kref struct 3027 * 3028 * Return value: 3029 * nothing 3030 **/ 3031static void ipr_release_dump(struct kref *kref) 3032{ 3033 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 3034 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 3035 unsigned long lock_flags = 0; 3036 int i; 3037 3038 ENTER; 3039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3040 ioa_cfg->dump = NULL; 3041 ioa_cfg->sdt_state = INACTIVE; 3042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3043 3044 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 3045 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 3046 3047 kfree(dump); 3048 LEAVE; 3049} 3050 3051/** 3052 * ipr_worker_thread - Worker thread 3053 * @work: ioa config struct 3054 * 3055 * Called at task level from a work thread. This function takes care 3056 * of adding and removing device from the mid-layer as configuration 3057 * changes are detected by the adapter. 3058 * 3059 * Return value: 3060 * nothing 3061 **/ 3062static void ipr_worker_thread(struct work_struct *work) 3063{ 3064 unsigned long lock_flags; 3065 struct ipr_resource_entry *res; 3066 struct scsi_device *sdev; 3067 struct ipr_dump *dump; 3068 struct ipr_ioa_cfg *ioa_cfg = 3069 container_of(work, struct ipr_ioa_cfg, work_q); 3070 u8 bus, target, lun; 3071 int did_work; 3072 3073 ENTER; 3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3075 3076 if (ioa_cfg->sdt_state == GET_DUMP) { 3077 dump = ioa_cfg->dump; 3078 if (!dump) { 3079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3080 return; 3081 } 3082 kref_get(&dump->kref); 3083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3084 ipr_get_ioa_dump(ioa_cfg, dump); 3085 kref_put(&dump->kref, ipr_release_dump); 3086 3087 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3088 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 3089 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3090 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3091 return; 3092 } 3093 3094restart: 3095 do { 3096 did_work = 0; 3097 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 3098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3099 return; 3100 } 3101 3102 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3103 if (res->del_from_ml && res->sdev) { 3104 did_work = 1; 3105 sdev = res->sdev; 3106 if (!scsi_device_get(sdev)) { 3107 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3109 scsi_remove_device(sdev); 3110 scsi_device_put(sdev); 3111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3112 } 3113 break; 3114 } 3115 } 3116 } while(did_work); 3117 3118 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3119 if (res->add_to_ml) { 3120 bus = res->bus; 3121 target = res->target; 3122 lun = res->lun; 3123 res->add_to_ml = 0; 3124 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3125 scsi_add_device(ioa_cfg->host, bus, target, lun); 3126 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3127 goto restart; 3128 } 3129 } 3130 3131 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3132 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3133 LEAVE; 3134} 3135 3136#ifdef CONFIG_SCSI_IPR_TRACE 3137/** 3138 * ipr_read_trace - Dump the adapter trace 3139 * @filp: open sysfs file 3140 * @kobj: kobject struct 3141 * @bin_attr: bin_attribute struct 3142 * @buf: buffer 3143 * @off: offset 3144 * @count: buffer size 3145 * 3146 * Return value: 3147 * number of bytes printed to buffer 3148 **/ 3149static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, 3150 struct bin_attribute *bin_attr, 3151 char *buf, loff_t off, size_t count) 3152{ 3153 struct device *dev = container_of(kobj, struct device, kobj); 3154 struct Scsi_Host *shost = class_to_shost(dev); 3155 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3156 unsigned long lock_flags = 0; 3157 ssize_t ret; 3158 3159 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3160 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3161 IPR_TRACE_SIZE); 3162 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3163 3164 return ret; 3165} 3166 3167static struct bin_attribute ipr_trace_attr = { 3168 .attr = { 3169 .name = "trace", 3170 .mode = S_IRUGO, 3171 }, 3172 .size = 0, 3173 .read = ipr_read_trace, 3174}; 3175#endif 3176 3177/** 3178 * ipr_show_fw_version - Show the firmware version 3179 * @dev: class device struct 3180 * @buf: buffer 3181 * 3182 * Return value: 3183 * number of bytes printed to buffer 3184 **/ 3185static ssize_t ipr_show_fw_version(struct device *dev, 3186 struct device_attribute *attr, char *buf) 3187{ 3188 struct Scsi_Host *shost = class_to_shost(dev); 3189 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3190 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3191 unsigned long lock_flags = 0; 3192 int len; 3193 3194 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3195 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3196 ucode_vpd->major_release, ucode_vpd->card_type, 3197 ucode_vpd->minor_release[0], 3198 ucode_vpd->minor_release[1]); 3199 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3200 return len; 3201} 3202 3203static struct device_attribute ipr_fw_version_attr = { 3204 .attr = { 3205 .name = "fw_version", 3206 .mode = S_IRUGO, 3207 }, 3208 .show = ipr_show_fw_version, 3209}; 3210 3211/** 3212 * ipr_show_log_level - Show the adapter's error logging level 3213 * @dev: class device struct 3214 * @buf: buffer 3215 * 3216 * Return value: 3217 * number of bytes printed to buffer 3218 **/ 3219static ssize_t ipr_show_log_level(struct device *dev, 3220 struct device_attribute *attr, char *buf) 3221{ 3222 struct Scsi_Host *shost = class_to_shost(dev); 3223 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3224 unsigned long lock_flags = 0; 3225 int len; 3226 3227 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3228 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3229 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3230 return len; 3231} 3232 3233/** 3234 * ipr_store_log_level - Change the adapter's error logging level 3235 * @dev: class device struct 3236 * @buf: buffer 3237 * 3238 * Return value: 3239 * number of bytes printed to buffer 3240 **/ 3241static ssize_t ipr_store_log_level(struct device *dev, 3242 struct device_attribute *attr, 3243 const char *buf, size_t count) 3244{ 3245 struct Scsi_Host *shost = class_to_shost(dev); 3246 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3247 unsigned long lock_flags = 0; 3248 3249 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3250 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3251 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3252 return strlen(buf); 3253} 3254 3255static struct device_attribute ipr_log_level_attr = { 3256 .attr = { 3257 .name = "log_level", 3258 .mode = S_IRUGO | S_IWUSR, 3259 }, 3260 .show = ipr_show_log_level, 3261 .store = ipr_store_log_level 3262}; 3263 3264/** 3265 * ipr_store_diagnostics - IOA Diagnostics interface 3266 * @dev: device struct 3267 * @buf: buffer 3268 * @count: buffer size 3269 * 3270 * This function will reset the adapter and wait a reasonable 3271 * amount of time for any errors that the adapter might log. 3272 * 3273 * Return value: 3274 * count on success / other on failure 3275 **/ 3276static ssize_t ipr_store_diagnostics(struct device *dev, 3277 struct device_attribute *attr, 3278 const char *buf, size_t count) 3279{ 3280 struct Scsi_Host *shost = class_to_shost(dev); 3281 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3282 unsigned long lock_flags = 0; 3283 int rc = count; 3284 3285 if (!capable(CAP_SYS_ADMIN)) 3286 return -EACCES; 3287 3288 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3289 while(ioa_cfg->in_reset_reload) { 3290 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3291 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3292 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3293 } 3294 3295 ioa_cfg->errors_logged = 0; 3296 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3297 3298 if (ioa_cfg->in_reset_reload) { 3299 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3300 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3301 3302 /* Wait for a second for any errors to be logged */ 3303 msleep(1000); 3304 } else { 3305 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3306 return -EIO; 3307 } 3308 3309 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3310 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3311 rc = -EIO; 3312 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3313 3314 return rc; 3315} 3316 3317static struct device_attribute ipr_diagnostics_attr = { 3318 .attr = { 3319 .name = "run_diagnostics", 3320 .mode = S_IWUSR, 3321 }, 3322 .store = ipr_store_diagnostics 3323}; 3324 3325/** 3326 * ipr_show_adapter_state - Show the adapter's state 3327 * @class_dev: device struct 3328 * @buf: buffer 3329 * 3330 * Return value: 3331 * number of bytes printed to buffer 3332 **/ 3333static ssize_t ipr_show_adapter_state(struct device *dev, 3334 struct device_attribute *attr, char *buf) 3335{ 3336 struct Scsi_Host *shost = class_to_shost(dev); 3337 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3338 unsigned long lock_flags = 0; 3339 int len; 3340 3341 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3342 if (ioa_cfg->ioa_is_dead) 3343 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3344 else 3345 len = snprintf(buf, PAGE_SIZE, "online\n"); 3346 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3347 return len; 3348} 3349 3350/** 3351 * ipr_store_adapter_state - Change adapter state 3352 * @dev: device struct 3353 * @buf: buffer 3354 * @count: buffer size 3355 * 3356 * This function will change the adapter's state. 3357 * 3358 * Return value: 3359 * count on success / other on failure 3360 **/ 3361static ssize_t ipr_store_adapter_state(struct device *dev, 3362 struct device_attribute *attr, 3363 const char *buf, size_t count) 3364{ 3365 struct Scsi_Host *shost = class_to_shost(dev); 3366 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3367 unsigned long lock_flags; 3368 int result = count; 3369 3370 if (!capable(CAP_SYS_ADMIN)) 3371 return -EACCES; 3372 3373 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3374 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 3375 ioa_cfg->ioa_is_dead = 0; 3376 ioa_cfg->reset_retries = 0; 3377 ioa_cfg->in_ioa_bringdown = 0; 3378 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3379 } 3380 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3381 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3382 3383 return result; 3384} 3385 3386static struct device_attribute ipr_ioa_state_attr = { 3387 .attr = { 3388 .name = "online_state", 3389 .mode = S_IRUGO | S_IWUSR, 3390 }, 3391 .show = ipr_show_adapter_state, 3392 .store = ipr_store_adapter_state 3393}; 3394 3395/** 3396 * ipr_store_reset_adapter - Reset the adapter 3397 * @dev: device struct 3398 * @buf: buffer 3399 * @count: buffer size 3400 * 3401 * This function will reset the adapter. 3402 * 3403 * Return value: 3404 * count on success / other on failure 3405 **/ 3406static ssize_t ipr_store_reset_adapter(struct device *dev, 3407 struct device_attribute *attr, 3408 const char *buf, size_t count) 3409{ 3410 struct Scsi_Host *shost = class_to_shost(dev); 3411 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3412 unsigned long lock_flags; 3413 int result = count; 3414 3415 if (!capable(CAP_SYS_ADMIN)) 3416 return -EACCES; 3417 3418 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3419 if (!ioa_cfg->in_reset_reload) 3420 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3421 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3422 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3423 3424 return result; 3425} 3426 3427static struct device_attribute ipr_ioa_reset_attr = { 3428 .attr = { 3429 .name = "reset_host", 3430 .mode = S_IWUSR, 3431 }, 3432 .store = ipr_store_reset_adapter 3433}; 3434 3435/** 3436 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3437 * @buf_len: buffer length 3438 * 3439 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3440 * list to use for microcode download 3441 * 3442 * Return value: 3443 * pointer to sglist / NULL on failure 3444 **/ 3445static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3446{ 3447 int sg_size, order, bsize_elem, num_elem, i, j; 3448 struct ipr_sglist *sglist; 3449 struct scatterlist *scatterlist; 3450 struct page *page; 3451 3452 /* Get the minimum size per scatter/gather element */ 3453 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3454 3455 /* Get the actual size per element */ 3456 order = get_order(sg_size); 3457 3458 /* Determine the actual number of bytes per element */ 3459 bsize_elem = PAGE_SIZE * (1 << order); 3460 3461 /* Determine the actual number of sg entries needed */ 3462 if (buf_len % bsize_elem) 3463 num_elem = (buf_len / bsize_elem) + 1; 3464 else 3465 num_elem = buf_len / bsize_elem; 3466 3467 /* Allocate a scatter/gather list for the DMA */ 3468 sglist = kzalloc(sizeof(struct ipr_sglist) + 3469 (sizeof(struct scatterlist) * (num_elem - 1)), 3470 GFP_KERNEL); 3471 3472 if (sglist == NULL) { 3473 ipr_trace; 3474 return NULL; 3475 } 3476 3477 scatterlist = sglist->scatterlist; 3478 sg_init_table(scatterlist, num_elem); 3479 3480 sglist->order = order; 3481 sglist->num_sg = num_elem; 3482 3483 /* Allocate a bunch of sg elements */ 3484 for (i = 0; i < num_elem; i++) { 3485 page = alloc_pages(GFP_KERNEL, order); 3486 if (!page) { 3487 ipr_trace; 3488 3489 /* Free up what we already allocated */ 3490 for (j = i - 1; j >= 0; j--) 3491 __free_pages(sg_page(&scatterlist[j]), order); 3492 kfree(sglist); 3493 return NULL; 3494 } 3495 3496 sg_set_page(&scatterlist[i], page, 0, 0); 3497 } 3498 3499 return sglist; 3500} 3501 3502/** 3503 * ipr_free_ucode_buffer - Frees a microcode download buffer 3504 * @p_dnld: scatter/gather list pointer 3505 * 3506 * Free a DMA'able ucode download buffer previously allocated with 3507 * ipr_alloc_ucode_buffer 3508 * 3509 * Return value: 3510 * nothing 3511 **/ 3512static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3513{ 3514 int i; 3515 3516 for (i = 0; i < sglist->num_sg; i++) 3517 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 3518 3519 kfree(sglist); 3520} 3521 3522/** 3523 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3524 * @sglist: scatter/gather list pointer 3525 * @buffer: buffer pointer 3526 * @len: buffer length 3527 * 3528 * Copy a microcode image from a user buffer into a buffer allocated by 3529 * ipr_alloc_ucode_buffer 3530 * 3531 * Return value: 3532 * 0 on success / other on failure 3533 **/ 3534static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3535 u8 *buffer, u32 len) 3536{ 3537 int bsize_elem, i, result = 0; 3538 struct scatterlist *scatterlist; 3539 void *kaddr; 3540 3541 /* Determine the actual number of bytes per element */ 3542 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3543 3544 scatterlist = sglist->scatterlist; 3545 3546 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 3547 struct page *page = sg_page(&scatterlist[i]); 3548 3549 kaddr = kmap(page); 3550 memcpy(kaddr, buffer, bsize_elem); 3551 kunmap(page); 3552 3553 scatterlist[i].length = bsize_elem; 3554 3555 if (result != 0) { 3556 ipr_trace; 3557 return result; 3558 } 3559 } 3560 3561 if (len % bsize_elem) { 3562 struct page *page = sg_page(&scatterlist[i]); 3563 3564 kaddr = kmap(page); 3565 memcpy(kaddr, buffer, len % bsize_elem); 3566 kunmap(page); 3567 3568 scatterlist[i].length = len % bsize_elem; 3569 } 3570 3571 sglist->buffer_len = len; 3572 return result; 3573} 3574 3575/** 3576 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3577 * @ipr_cmd: ipr command struct 3578 * @sglist: scatter/gather list 3579 * 3580 * Builds a microcode download IOA data list (IOADL). 3581 * 3582 **/ 3583static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3584 struct ipr_sglist *sglist) 3585{ 3586 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3587 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3588 struct scatterlist *scatterlist = sglist->scatterlist; 3589 int i; 3590 3591 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3592 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3593 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3594 3595 ioarcb->ioadl_len = 3596 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3597 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3598 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3599 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); 3600 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); 3601 } 3602 3603 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3604} 3605 3606/** 3607 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3608 * @ipr_cmd: ipr command struct 3609 * @sglist: scatter/gather list 3610 * 3611 * Builds a microcode download IOA data list (IOADL). 3612 * 3613 **/ 3614static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3615 struct ipr_sglist *sglist) 3616{ 3617 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3618 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3619 struct scatterlist *scatterlist = sglist->scatterlist; 3620 int i; 3621 3622 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3623 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3624 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3625 3626 ioarcb->ioadl_len = 3627 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3628 3629 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3630 ioadl[i].flags_and_data_len = 3631 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3632 ioadl[i].address = 3633 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3634 } 3635 3636 ioadl[i-1].flags_and_data_len |= 3637 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3638} 3639 3640/** 3641 * ipr_update_ioa_ucode - Update IOA's microcode 3642 * @ioa_cfg: ioa config struct 3643 * @sglist: scatter/gather list 3644 * 3645 * Initiate an adapter reset to update the IOA's microcode 3646 * 3647 * Return value: 3648 * 0 on success / -EIO on failure 3649 **/ 3650static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3651 struct ipr_sglist *sglist) 3652{ 3653 unsigned long lock_flags; 3654 3655 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3656 while(ioa_cfg->in_reset_reload) { 3657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3658 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3659 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3660 } 3661 3662 if (ioa_cfg->ucode_sglist) { 3663 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3664 dev_err(&ioa_cfg->pdev->dev, 3665 "Microcode download already in progress\n"); 3666 return -EIO; 3667 } 3668 3669 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3670 sglist->num_sg, DMA_TO_DEVICE); 3671 3672 if (!sglist->num_dma_sg) { 3673 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3674 dev_err(&ioa_cfg->pdev->dev, 3675 "Failed to map microcode download buffer!\n"); 3676 return -EIO; 3677 } 3678 3679 ioa_cfg->ucode_sglist = sglist; 3680 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3681 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3682 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3683 3684 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3685 ioa_cfg->ucode_sglist = NULL; 3686 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3687 return 0; 3688} 3689 3690/** 3691 * ipr_store_update_fw - Update the firmware on the adapter 3692 * @class_dev: device struct 3693 * @buf: buffer 3694 * @count: buffer size 3695 * 3696 * This function will update the firmware on the adapter. 3697 * 3698 * Return value: 3699 * count on success / other on failure 3700 **/ 3701static ssize_t ipr_store_update_fw(struct device *dev, 3702 struct device_attribute *attr, 3703 const char *buf, size_t count) 3704{ 3705 struct Scsi_Host *shost = class_to_shost(dev); 3706 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3707 struct ipr_ucode_image_header *image_hdr; 3708 const struct firmware *fw_entry; 3709 struct ipr_sglist *sglist; 3710 char fname[100]; 3711 char *src; 3712 int len, result, dnld_size; 3713 3714 if (!capable(CAP_SYS_ADMIN)) 3715 return -EACCES; 3716 3717 len = snprintf(fname, 99, "%s", buf); 3718 fname[len-1] = '\0'; 3719 3720 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3721 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3722 return -EIO; 3723 } 3724 3725 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3726 3727 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3728 (ioa_cfg->vpd_cbs->page3_data.card_type && 3729 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3730 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3731 release_firmware(fw_entry); 3732 return -EINVAL; 3733 } 3734 3735 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3736 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3737 sglist = ipr_alloc_ucode_buffer(dnld_size); 3738 3739 if (!sglist) { 3740 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3741 release_firmware(fw_entry); 3742 return -ENOMEM; 3743 } 3744 3745 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3746 3747 if (result) { 3748 dev_err(&ioa_cfg->pdev->dev, 3749 "Microcode buffer copy to DMA buffer failed\n"); 3750 goto out; 3751 } 3752 3753 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3754 3755 if (!result) 3756 result = count; 3757out: 3758 ipr_free_ucode_buffer(sglist); 3759 release_firmware(fw_entry); 3760 return result; 3761} 3762 3763static struct device_attribute ipr_update_fw_attr = { 3764 .attr = { 3765 .name = "update_fw", 3766 .mode = S_IWUSR, 3767 }, 3768 .store = ipr_store_update_fw 3769}; 3770 3771/** 3772 * ipr_show_fw_type - Show the adapter's firmware type. 3773 * @dev: class device struct 3774 * @buf: buffer 3775 * 3776 * Return value: 3777 * number of bytes printed to buffer 3778 **/ 3779static ssize_t ipr_show_fw_type(struct device *dev, 3780 struct device_attribute *attr, char *buf) 3781{ 3782 struct Scsi_Host *shost = class_to_shost(dev); 3783 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3784 unsigned long lock_flags = 0; 3785 int len; 3786 3787 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3788 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64); 3789 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3790 return len; 3791} 3792 3793static struct device_attribute ipr_ioa_fw_type_attr = { 3794 .attr = { 3795 .name = "fw_type", 3796 .mode = S_IRUGO, 3797 }, 3798 .show = ipr_show_fw_type 3799}; 3800 3801static struct device_attribute *ipr_ioa_attrs[] = { 3802 &ipr_fw_version_attr, 3803 &ipr_log_level_attr, 3804 &ipr_diagnostics_attr, 3805 &ipr_ioa_state_attr, 3806 &ipr_ioa_reset_attr, 3807 &ipr_update_fw_attr, 3808 &ipr_ioa_fw_type_attr, 3809 NULL, 3810}; 3811 3812#ifdef CONFIG_SCSI_IPR_DUMP 3813/** 3814 * ipr_read_dump - Dump the adapter 3815 * @filp: open sysfs file 3816 * @kobj: kobject struct 3817 * @bin_attr: bin_attribute struct 3818 * @buf: buffer 3819 * @off: offset 3820 * @count: buffer size 3821 * 3822 * Return value: 3823 * number of bytes printed to buffer 3824 **/ 3825static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, 3826 struct bin_attribute *bin_attr, 3827 char *buf, loff_t off, size_t count) 3828{ 3829 struct device *cdev = container_of(kobj, struct device, kobj); 3830 struct Scsi_Host *shost = class_to_shost(cdev); 3831 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3832 struct ipr_dump *dump; 3833 unsigned long lock_flags = 0; 3834 char *src; 3835 int len; 3836 size_t rc = count; 3837 3838 if (!capable(CAP_SYS_ADMIN)) 3839 return -EACCES; 3840 3841 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3842 dump = ioa_cfg->dump; 3843 3844 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3845 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3846 return 0; 3847 } 3848 kref_get(&dump->kref); 3849 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3850 3851 if (off > dump->driver_dump.hdr.len) { 3852 kref_put(&dump->kref, ipr_release_dump); 3853 return 0; 3854 } 3855 3856 if (off + count > dump->driver_dump.hdr.len) { 3857 count = dump->driver_dump.hdr.len - off; 3858 rc = count; 3859 } 3860 3861 if (count && off < sizeof(dump->driver_dump)) { 3862 if (off + count > sizeof(dump->driver_dump)) 3863 len = sizeof(dump->driver_dump) - off; 3864 else 3865 len = count; 3866 src = (u8 *)&dump->driver_dump + off; 3867 memcpy(buf, src, len); 3868 buf += len; 3869 off += len; 3870 count -= len; 3871 } 3872 3873 off -= sizeof(dump->driver_dump); 3874 3875 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3876 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3877 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3878 else 3879 len = count; 3880 src = (u8 *)&dump->ioa_dump + off; 3881 memcpy(buf, src, len); 3882 buf += len; 3883 off += len; 3884 count -= len; 3885 } 3886 3887 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3888 3889 while (count) { 3890 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3891 len = PAGE_ALIGN(off) - off; 3892 else 3893 len = count; 3894 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3895 src += off & ~PAGE_MASK; 3896 memcpy(buf, src, len); 3897 buf += len; 3898 off += len; 3899 count -= len; 3900 } 3901 3902 kref_put(&dump->kref, ipr_release_dump); 3903 return rc; 3904} 3905 3906/** 3907 * ipr_alloc_dump - Prepare for adapter dump 3908 * @ioa_cfg: ioa config struct 3909 * 3910 * Return value: 3911 * 0 on success / other on failure 3912 **/ 3913static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3914{ 3915 struct ipr_dump *dump; 3916 unsigned long lock_flags = 0; 3917 3918 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3919 3920 if (!dump) { 3921 ipr_err("Dump memory allocation failed\n"); 3922 return -ENOMEM; 3923 } 3924 3925 kref_init(&dump->kref); 3926 dump->ioa_cfg = ioa_cfg; 3927 3928 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3929 3930 if (INACTIVE != ioa_cfg->sdt_state) { 3931 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3932 kfree(dump); 3933 return 0; 3934 } 3935 3936 ioa_cfg->dump = dump; 3937 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3938 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3939 ioa_cfg->dump_taken = 1; 3940 schedule_work(&ioa_cfg->work_q); 3941 } 3942 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3943 3944 return 0; 3945} 3946 3947/** 3948 * ipr_free_dump - Free adapter dump memory 3949 * @ioa_cfg: ioa config struct 3950 * 3951 * Return value: 3952 * 0 on success / other on failure 3953 **/ 3954static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3955{ 3956 struct ipr_dump *dump; 3957 unsigned long lock_flags = 0; 3958 3959 ENTER; 3960 3961 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3962 dump = ioa_cfg->dump; 3963 if (!dump) { 3964 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3965 return 0; 3966 } 3967 3968 ioa_cfg->dump = NULL; 3969 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3970 3971 kref_put(&dump->kref, ipr_release_dump); 3972 3973 LEAVE; 3974 return 0; 3975} 3976 3977/** 3978 * ipr_write_dump - Setup dump state of adapter 3979 * @filp: open sysfs file 3980 * @kobj: kobject struct 3981 * @bin_attr: bin_attribute struct 3982 * @buf: buffer 3983 * @off: offset 3984 * @count: buffer size 3985 * 3986 * Return value: 3987 * number of bytes printed to buffer 3988 **/ 3989static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, 3990 struct bin_attribute *bin_attr, 3991 char *buf, loff_t off, size_t count) 3992{ 3993 struct device *cdev = container_of(kobj, struct device, kobj); 3994 struct Scsi_Host *shost = class_to_shost(cdev); 3995 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3996 int rc; 3997 3998 if (!capable(CAP_SYS_ADMIN)) 3999 return -EACCES; 4000 4001 if (buf[0] == '1') 4002 rc = ipr_alloc_dump(ioa_cfg); 4003 else if (buf[0] == '0') 4004 rc = ipr_free_dump(ioa_cfg); 4005 else 4006 return -EINVAL; 4007 4008 if (rc) 4009 return rc; 4010 else 4011 return count; 4012} 4013 4014static struct bin_attribute ipr_dump_attr = { 4015 .attr = { 4016 .name = "dump", 4017 .mode = S_IRUSR | S_IWUSR, 4018 }, 4019 .size = 0, 4020 .read = ipr_read_dump, 4021 .write = ipr_write_dump 4022}; 4023#else 4024static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 4025#endif 4026 4027/** 4028 * ipr_change_queue_depth - Change the device's queue depth 4029 * @sdev: scsi device struct 4030 * @qdepth: depth to set 4031 * @reason: calling context 4032 * 4033 * Return value: 4034 * actual depth set 4035 **/ 4036static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, 4037 int reason) 4038{ 4039 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4040 struct ipr_resource_entry *res; 4041 unsigned long lock_flags = 0; 4042 4043 if (reason != SCSI_QDEPTH_DEFAULT) 4044 return -EOPNOTSUPP; 4045 4046 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4047 res = (struct ipr_resource_entry *)sdev->hostdata; 4048 4049 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 4050 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 4051 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4052 4053 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 4054 return sdev->queue_depth; 4055} 4056 4057/** 4058 * ipr_change_queue_type - Change the device's queue type 4059 * @dsev: scsi device struct 4060 * @tag_type: type of tags to use 4061 * 4062 * Return value: 4063 * actual queue type set 4064 **/ 4065static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 4066{ 4067 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4068 struct ipr_resource_entry *res; 4069 unsigned long lock_flags = 0; 4070 4071 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4072 res = (struct ipr_resource_entry *)sdev->hostdata; 4073 4074 if (res) { 4075 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 4076 /* 4077 * We don't bother quiescing the device here since the 4078 * adapter firmware does it for us. 4079 */ 4080 scsi_set_tag_type(sdev, tag_type); 4081 4082 if (tag_type) 4083 scsi_activate_tcq(sdev, sdev->queue_depth); 4084 else 4085 scsi_deactivate_tcq(sdev, sdev->queue_depth); 4086 } else 4087 tag_type = 0; 4088 } else 4089 tag_type = 0; 4090 4091 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4092 return tag_type; 4093} 4094 4095/** 4096 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4097 * @dev: device struct 4098 * @attr: device attribute structure 4099 * @buf: buffer 4100 * 4101 * Return value: 4102 * number of bytes printed to buffer 4103 **/ 4104static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4105{ 4106 struct scsi_device *sdev = to_scsi_device(dev); 4107 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4108 struct ipr_resource_entry *res; 4109 unsigned long lock_flags = 0; 4110 ssize_t len = -ENXIO; 4111 4112 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4113 res = (struct ipr_resource_entry *)sdev->hostdata; 4114 if (res) 4115 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4116 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4117 return len; 4118} 4119 4120static struct device_attribute ipr_adapter_handle_attr = { 4121 .attr = { 4122 .name = "adapter_handle", 4123 .mode = S_IRUSR, 4124 }, 4125 .show = ipr_show_adapter_handle 4126}; 4127 4128/** 4129 * ipr_show_resource_path - Show the resource path or the resource address for 4130 * this device. 4131 * @dev: device struct 4132 * @attr: device attribute structure 4133 * @buf: buffer 4134 * 4135 * Return value: 4136 * number of bytes printed to buffer 4137 **/ 4138static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4139{ 4140 struct scsi_device *sdev = to_scsi_device(dev); 4141 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4142 struct ipr_resource_entry *res; 4143 unsigned long lock_flags = 0; 4144 ssize_t len = -ENXIO; 4145 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4146 4147 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4148 res = (struct ipr_resource_entry *)sdev->hostdata; 4149 if (res && ioa_cfg->sis64) 4150 len = snprintf(buf, PAGE_SIZE, "%s\n", 4151 ipr_format_res_path(res->res_path, buffer, 4152 sizeof(buffer))); 4153 else if (res) 4154 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no, 4155 res->bus, res->target, res->lun); 4156 4157 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4158 return len; 4159} 4160 4161static struct device_attribute ipr_resource_path_attr = { 4162 .attr = { 4163 .name = "resource_path", 4164 .mode = S_IRUGO, 4165 }, 4166 .show = ipr_show_resource_path 4167}; 4168 4169/** 4170 * ipr_show_device_id - Show the device_id for this device. 4171 * @dev: device struct 4172 * @attr: device attribute structure 4173 * @buf: buffer 4174 * 4175 * Return value: 4176 * number of bytes printed to buffer 4177 **/ 4178static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) 4179{ 4180 struct scsi_device *sdev = to_scsi_device(dev); 4181 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4182 struct ipr_resource_entry *res; 4183 unsigned long lock_flags = 0; 4184 ssize_t len = -ENXIO; 4185 4186 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4187 res = (struct ipr_resource_entry *)sdev->hostdata; 4188 if (res && ioa_cfg->sis64) 4189 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id); 4190 else if (res) 4191 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); 4192 4193 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4194 return len; 4195} 4196 4197static struct device_attribute ipr_device_id_attr = { 4198 .attr = { 4199 .name = "device_id", 4200 .mode = S_IRUGO, 4201 }, 4202 .show = ipr_show_device_id 4203}; 4204 4205/** 4206 * ipr_show_resource_type - Show the resource type for this device. 4207 * @dev: device struct 4208 * @attr: device attribute structure 4209 * @buf: buffer 4210 * 4211 * Return value: 4212 * number of bytes printed to buffer 4213 **/ 4214static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) 4215{ 4216 struct scsi_device *sdev = to_scsi_device(dev); 4217 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4218 struct ipr_resource_entry *res; 4219 unsigned long lock_flags = 0; 4220 ssize_t len = -ENXIO; 4221 4222 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4223 res = (struct ipr_resource_entry *)sdev->hostdata; 4224 4225 if (res) 4226 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type); 4227 4228 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4229 return len; 4230} 4231 4232static struct device_attribute ipr_resource_type_attr = { 4233 .attr = { 4234 .name = "resource_type", 4235 .mode = S_IRUGO, 4236 }, 4237 .show = ipr_show_resource_type 4238}; 4239 4240static struct device_attribute *ipr_dev_attrs[] = { 4241 &ipr_adapter_handle_attr, 4242 &ipr_resource_path_attr, 4243 &ipr_device_id_attr, 4244 &ipr_resource_type_attr, 4245 NULL, 4246}; 4247 4248/** 4249 * ipr_biosparam - Return the HSC mapping 4250 * @sdev: scsi device struct 4251 * @block_device: block device pointer 4252 * @capacity: capacity of the device 4253 * @parm: Array containing returned HSC values. 4254 * 4255 * This function generates the HSC parms that fdisk uses. 4256 * We want to make sure we return something that places partitions 4257 * on 4k boundaries for best performance with the IOA. 4258 * 4259 * Return value: 4260 * 0 on success 4261 **/ 4262static int ipr_biosparam(struct scsi_device *sdev, 4263 struct block_device *block_device, 4264 sector_t capacity, int *parm) 4265{ 4266 int heads, sectors; 4267 sector_t cylinders; 4268 4269 heads = 128; 4270 sectors = 32; 4271 4272 cylinders = capacity; 4273 sector_div(cylinders, (128 * 32)); 4274 4275 /* return result */ 4276 parm[0] = heads; 4277 parm[1] = sectors; 4278 parm[2] = cylinders; 4279 4280 return 0; 4281} 4282 4283/** 4284 * ipr_find_starget - Find target based on bus/target. 4285 * @starget: scsi target struct 4286 * 4287 * Return value: 4288 * resource entry pointer if found / NULL if not found 4289 **/ 4290static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4291{ 4292 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4293 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4294 struct ipr_resource_entry *res; 4295 4296 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4297 if ((res->bus == starget->channel) && 4298 (res->target == starget->id) && 4299 (res->lun == 0)) { 4300 return res; 4301 } 4302 } 4303 4304 return NULL; 4305} 4306 4307static struct ata_port_info sata_port_info; 4308 4309/** 4310 * ipr_target_alloc - Prepare for commands to a SCSI target 4311 * @starget: scsi target struct 4312 * 4313 * If the device is a SATA device, this function allocates an 4314 * ATA port with libata, else it does nothing. 4315 * 4316 * Return value: 4317 * 0 on success / non-0 on failure 4318 **/ 4319static int ipr_target_alloc(struct scsi_target *starget) 4320{ 4321 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4322 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4323 struct ipr_sata_port *sata_port; 4324 struct ata_port *ap; 4325 struct ipr_resource_entry *res; 4326 unsigned long lock_flags; 4327 4328 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4329 res = ipr_find_starget(starget); 4330 starget->hostdata = NULL; 4331 4332 if (res && ipr_is_gata(res)) { 4333 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4334 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4335 if (!sata_port) 4336 return -ENOMEM; 4337 4338 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4339 if (ap) { 4340 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4341 sata_port->ioa_cfg = ioa_cfg; 4342 sata_port->ap = ap; 4343 sata_port->res = res; 4344 4345 res->sata_port = sata_port; 4346 ap->private_data = sata_port; 4347 starget->hostdata = sata_port; 4348 } else { 4349 kfree(sata_port); 4350 return -ENOMEM; 4351 } 4352 } 4353 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4354 4355 return 0; 4356} 4357 4358/** 4359 * ipr_target_destroy - Destroy a SCSI target 4360 * @starget: scsi target struct 4361 * 4362 * If the device was a SATA device, this function frees the libata 4363 * ATA port, else it does nothing. 4364 * 4365 **/ 4366static void ipr_target_destroy(struct scsi_target *starget) 4367{ 4368 struct ipr_sata_port *sata_port = starget->hostdata; 4369 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4370 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4371 4372 if (ioa_cfg->sis64) { 4373 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4374 clear_bit(starget->id, ioa_cfg->array_ids); 4375 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4376 clear_bit(starget->id, ioa_cfg->vset_ids); 4377 else if (starget->channel == 0) 4378 clear_bit(starget->id, ioa_cfg->target_ids); 4379 } 4380 4381 if (sata_port) { 4382 starget->hostdata = NULL; 4383 ata_sas_port_destroy(sata_port->ap); 4384 kfree(sata_port); 4385 } 4386} 4387 4388/** 4389 * ipr_find_sdev - Find device based on bus/target/lun. 4390 * @sdev: scsi device struct 4391 * 4392 * Return value: 4393 * resource entry pointer if found / NULL if not found 4394 **/ 4395static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4396{ 4397 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4398 struct ipr_resource_entry *res; 4399 4400 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4401 if ((res->bus == sdev->channel) && 4402 (res->target == sdev->id) && 4403 (res->lun == sdev->lun)) 4404 return res; 4405 } 4406 4407 return NULL; 4408} 4409 4410/** 4411 * ipr_slave_destroy - Unconfigure a SCSI device 4412 * @sdev: scsi device struct 4413 * 4414 * Return value: 4415 * nothing 4416 **/ 4417static void ipr_slave_destroy(struct scsi_device *sdev) 4418{ 4419 struct ipr_resource_entry *res; 4420 struct ipr_ioa_cfg *ioa_cfg; 4421 unsigned long lock_flags = 0; 4422 4423 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4424 4425 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4426 res = (struct ipr_resource_entry *) sdev->hostdata; 4427 if (res) { 4428 if (res->sata_port) 4429 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; 4430 sdev->hostdata = NULL; 4431 res->sdev = NULL; 4432 res->sata_port = NULL; 4433 } 4434 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4435} 4436 4437/** 4438 * ipr_slave_configure - Configure a SCSI device 4439 * @sdev: scsi device struct 4440 * 4441 * This function configures the specified scsi device. 4442 * 4443 * Return value: 4444 * 0 on success 4445 **/ 4446static int ipr_slave_configure(struct scsi_device *sdev) 4447{ 4448 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4449 struct ipr_resource_entry *res; 4450 struct ata_port *ap = NULL; 4451 unsigned long lock_flags = 0; 4452 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4453 4454 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4455 res = sdev->hostdata; 4456 if (res) { 4457 if (ipr_is_af_dasd_device(res)) 4458 sdev->type = TYPE_RAID; 4459 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4460 sdev->scsi_level = 4; 4461 sdev->no_uld_attach = 1; 4462 } 4463 if (ipr_is_vset_device(res)) { 4464 blk_queue_rq_timeout(sdev->request_queue, 4465 IPR_VSET_RW_TIMEOUT); 4466 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4467 } 4468 if (ipr_is_gata(res) && res->sata_port) 4469 ap = res->sata_port->ap; 4470 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4471 4472 if (ap) { 4473 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 4474 ata_sas_slave_configure(sdev, ap); 4475 } else 4476 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 4477 if (ioa_cfg->sis64) 4478 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4479 ipr_format_res_path(res->res_path, buffer, 4480 sizeof(buffer))); 4481 return 0; 4482 } 4483 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4484 return 0; 4485} 4486 4487/** 4488 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4489 * @sdev: scsi device struct 4490 * 4491 * This function initializes an ATA port so that future commands 4492 * sent through queuecommand will work. 4493 * 4494 * Return value: 4495 * 0 on success 4496 **/ 4497static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4498{ 4499 struct ipr_sata_port *sata_port = NULL; 4500 int rc = -ENXIO; 4501 4502 ENTER; 4503 if (sdev->sdev_target) 4504 sata_port = sdev->sdev_target->hostdata; 4505 if (sata_port) 4506 rc = ata_sas_port_init(sata_port->ap); 4507 if (rc) 4508 ipr_slave_destroy(sdev); 4509 4510 LEAVE; 4511 return rc; 4512} 4513 4514/** 4515 * ipr_slave_alloc - Prepare for commands to a device. 4516 * @sdev: scsi device struct 4517 * 4518 * This function saves a pointer to the resource entry 4519 * in the scsi device struct if the device exists. We 4520 * can then use this pointer in ipr_queuecommand when 4521 * handling new commands. 4522 * 4523 * Return value: 4524 * 0 on success / -ENXIO if device does not exist 4525 **/ 4526static int ipr_slave_alloc(struct scsi_device *sdev) 4527{ 4528 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4529 struct ipr_resource_entry *res; 4530 unsigned long lock_flags; 4531 int rc = -ENXIO; 4532 4533 sdev->hostdata = NULL; 4534 4535 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4536 4537 res = ipr_find_sdev(sdev); 4538 if (res) { 4539 res->sdev = sdev; 4540 res->add_to_ml = 0; 4541 res->in_erp = 0; 4542 sdev->hostdata = res; 4543 if (!ipr_is_naca_model(res)) 4544 res->needs_sync_complete = 1; 4545 rc = 0; 4546 if (ipr_is_gata(res)) { 4547 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4548 return ipr_ata_slave_alloc(sdev); 4549 } 4550 } 4551 4552 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4553 4554 return rc; 4555} 4556 4557/** 4558 * ipr_eh_host_reset - Reset the host adapter 4559 * @scsi_cmd: scsi command struct 4560 * 4561 * Return value: 4562 * SUCCESS / FAILED 4563 **/ 4564static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 4565{ 4566 struct ipr_ioa_cfg *ioa_cfg; 4567 int rc; 4568 4569 ENTER; 4570 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4571 4572 dev_err(&ioa_cfg->pdev->dev, 4573 "Adapter being reset as a result of error recovery.\n"); 4574 4575 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4576 ioa_cfg->sdt_state = GET_DUMP; 4577 4578 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 4579 4580 LEAVE; 4581 return rc; 4582} 4583 4584static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 4585{ 4586 int rc; 4587 4588 spin_lock_irq(cmd->device->host->host_lock); 4589 rc = __ipr_eh_host_reset(cmd); 4590 spin_unlock_irq(cmd->device->host->host_lock); 4591 4592 return rc; 4593} 4594 4595/** 4596 * ipr_device_reset - Reset the device 4597 * @ioa_cfg: ioa config struct 4598 * @res: resource entry struct 4599 * 4600 * This function issues a device reset to the affected device. 4601 * If the device is a SCSI device, a LUN reset will be sent 4602 * to the device first. If that does not work, a target reset 4603 * will be sent. If the device is a SATA device, a PHY reset will 4604 * be sent. 4605 * 4606 * Return value: 4607 * 0 on success / non-zero on failure 4608 **/ 4609static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 4610 struct ipr_resource_entry *res) 4611{ 4612 struct ipr_cmnd *ipr_cmd; 4613 struct ipr_ioarcb *ioarcb; 4614 struct ipr_cmd_pkt *cmd_pkt; 4615 struct ipr_ioarcb_ata_regs *regs; 4616 u32 ioasc; 4617 4618 ENTER; 4619 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4620 ioarcb = &ipr_cmd->ioarcb; 4621 cmd_pkt = &ioarcb->cmd_pkt; 4622 4623 if (ipr_cmd->ioa_cfg->sis64) { 4624 regs = &ipr_cmd->i.ata_ioadl.regs; 4625 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 4626 } else 4627 regs = &ioarcb->u.add_data.u.regs; 4628 4629 ioarcb->res_handle = res->res_handle; 4630 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4631 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4632 if (ipr_is_gata(res)) { 4633 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 4634 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 4635 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 4636 } 4637 4638 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4639 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4640 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4641 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { 4642 if (ipr_cmd->ioa_cfg->sis64) 4643 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 4644 sizeof(struct ipr_ioasa_gata)); 4645 else 4646 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 4647 sizeof(struct ipr_ioasa_gata)); 4648 } 4649 4650 LEAVE; 4651 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 4652} 4653 4654/** 4655 * ipr_sata_reset - Reset the SATA port 4656 * @link: SATA link to reset 4657 * @classes: class of the attached device 4658 * 4659 * This function issues a SATA phy reset to the affected ATA link. 4660 * 4661 * Return value: 4662 * 0 on success / non-zero on failure 4663 **/ 4664static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 4665 unsigned long deadline) 4666{ 4667 struct ipr_sata_port *sata_port = link->ap->private_data; 4668 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4669 struct ipr_resource_entry *res; 4670 unsigned long lock_flags = 0; 4671 int rc = -ENXIO; 4672 4673 ENTER; 4674 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4675 while(ioa_cfg->in_reset_reload) { 4676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4677 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4678 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4679 } 4680 4681 res = sata_port->res; 4682 if (res) { 4683 rc = ipr_device_reset(ioa_cfg, res); 4684 *classes = res->ata_class; 4685 } 4686 4687 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4688 LEAVE; 4689 return rc; 4690} 4691 4692/** 4693 * ipr_eh_dev_reset - Reset the device 4694 * @scsi_cmd: scsi command struct 4695 * 4696 * This function issues a device reset to the affected device. 4697 * A LUN reset will be sent to the device first. If that does 4698 * not work, a target reset will be sent. 4699 * 4700 * Return value: 4701 * SUCCESS / FAILED 4702 **/ 4703static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 4704{ 4705 struct ipr_cmnd *ipr_cmd; 4706 struct ipr_ioa_cfg *ioa_cfg; 4707 struct ipr_resource_entry *res; 4708 struct ata_port *ap; 4709 int rc = 0; 4710 4711 ENTER; 4712 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4713 res = scsi_cmd->device->hostdata; 4714 4715 if (!res) 4716 return FAILED; 4717 4718 /* 4719 * If we are currently going through reset/reload, return failed. This will force the 4720 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 4721 * reset to complete 4722 */ 4723 if (ioa_cfg->in_reset_reload) 4724 return FAILED; 4725 if (ioa_cfg->ioa_is_dead) 4726 return FAILED; 4727 4728 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4729 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4730 if (ipr_cmd->scsi_cmd) 4731 ipr_cmd->done = ipr_scsi_eh_done; 4732 if (ipr_cmd->qc) 4733 ipr_cmd->done = ipr_sata_eh_done; 4734 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 4735 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 4736 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 4737 } 4738 } 4739 } 4740 4741 res->resetting_device = 1; 4742 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 4743 4744 if (ipr_is_gata(res) && res->sata_port) { 4745 ap = res->sata_port->ap; 4746 spin_unlock_irq(scsi_cmd->device->host->host_lock); 4747 ata_std_error_handler(ap); 4748 spin_lock_irq(scsi_cmd->device->host->host_lock); 4749 4750 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4751 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4752 rc = -EIO; 4753 break; 4754 } 4755 } 4756 } else 4757 rc = ipr_device_reset(ioa_cfg, res); 4758 res->resetting_device = 0; 4759 4760 LEAVE; 4761 return (rc ? FAILED : SUCCESS); 4762} 4763 4764static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 4765{ 4766 int rc; 4767 4768 spin_lock_irq(cmd->device->host->host_lock); 4769 rc = __ipr_eh_dev_reset(cmd); 4770 spin_unlock_irq(cmd->device->host->host_lock); 4771 4772 return rc; 4773} 4774 4775/** 4776 * ipr_bus_reset_done - Op done function for bus reset. 4777 * @ipr_cmd: ipr command struct 4778 * 4779 * This function is the op done function for a bus reset 4780 * 4781 * Return value: 4782 * none 4783 **/ 4784static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 4785{ 4786 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4787 struct ipr_resource_entry *res; 4788 4789 ENTER; 4790 if (!ioa_cfg->sis64) 4791 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4792 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 4793 scsi_report_bus_reset(ioa_cfg->host, res->bus); 4794 break; 4795 } 4796 } 4797 4798 /* 4799 * If abort has not completed, indicate the reset has, else call the 4800 * abort's done function to wake the sleeping eh thread 4801 */ 4802 if (ipr_cmd->sibling->sibling) 4803 ipr_cmd->sibling->sibling = NULL; 4804 else 4805 ipr_cmd->sibling->done(ipr_cmd->sibling); 4806 4807 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4808 LEAVE; 4809} 4810 4811/** 4812 * ipr_abort_timeout - An abort task has timed out 4813 * @ipr_cmd: ipr command struct 4814 * 4815 * This function handles when an abort task times out. If this 4816 * happens we issue a bus reset since we have resources tied 4817 * up that must be freed before returning to the midlayer. 4818 * 4819 * Return value: 4820 * none 4821 **/ 4822static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4823{ 4824 struct ipr_cmnd *reset_cmd; 4825 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4826 struct ipr_cmd_pkt *cmd_pkt; 4827 unsigned long lock_flags = 0; 4828 4829 ENTER; 4830 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4831 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4832 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4833 return; 4834 } 4835 4836 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4837 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4838 ipr_cmd->sibling = reset_cmd; 4839 reset_cmd->sibling = ipr_cmd; 4840 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4841 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4842 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4843 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4844 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4845 4846 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4847 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4848 LEAVE; 4849} 4850 4851/** 4852 * ipr_cancel_op - Cancel specified op 4853 * @scsi_cmd: scsi command struct 4854 * 4855 * This function cancels specified op. 4856 * 4857 * Return value: 4858 * SUCCESS / FAILED 4859 **/ 4860static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4861{ 4862 struct ipr_cmnd *ipr_cmd; 4863 struct ipr_ioa_cfg *ioa_cfg; 4864 struct ipr_resource_entry *res; 4865 struct ipr_cmd_pkt *cmd_pkt; 4866 u32 ioasc; 4867 int op_found = 0; 4868 4869 ENTER; 4870 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4871 res = scsi_cmd->device->hostdata; 4872 4873 /* If we are currently going through reset/reload, return failed. 4874 * This will force the mid-layer to call ipr_eh_host_reset, 4875 * which will then go to sleep and wait for the reset to complete 4876 */ 4877 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4878 return FAILED; 4879 if (!res || !ipr_is_gscsi(res)) 4880 return FAILED; 4881 4882 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4883 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4884 ipr_cmd->done = ipr_scsi_eh_done; 4885 op_found = 1; 4886 break; 4887 } 4888 } 4889 4890 if (!op_found) 4891 return SUCCESS; 4892 4893 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4894 ipr_cmd->ioarcb.res_handle = res->res_handle; 4895 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4896 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4897 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4898 ipr_cmd->u.sdev = scsi_cmd->device; 4899 4900 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4901 scsi_cmd->cmnd[0]); 4902 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4903 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4904 4905 /* 4906 * If the abort task timed out and we sent a bus reset, we will get 4907 * one the following responses to the abort 4908 */ 4909 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4910 ioasc = 0; 4911 ipr_trace; 4912 } 4913 4914 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4915 if (!ipr_is_naca_model(res)) 4916 res->needs_sync_complete = 1; 4917 4918 LEAVE; 4919 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4920} 4921 4922/** 4923 * ipr_eh_abort - Abort a single op 4924 * @scsi_cmd: scsi command struct 4925 * 4926 * Return value: 4927 * SUCCESS / FAILED 4928 **/ 4929static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4930{ 4931 unsigned long flags; 4932 int rc; 4933 4934 ENTER; 4935 4936 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4937 rc = ipr_cancel_op(scsi_cmd); 4938 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4939 4940 LEAVE; 4941 return rc; 4942} 4943 4944/** 4945 * ipr_handle_other_interrupt - Handle "other" interrupts 4946 * @ioa_cfg: ioa config struct 4947 * @int_reg: interrupt register 4948 * 4949 * Return value: 4950 * IRQ_NONE / IRQ_HANDLED 4951 **/ 4952static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4953 volatile u32 int_reg) 4954{ 4955 irqreturn_t rc = IRQ_HANDLED; 4956 4957 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4958 /* Mask the interrupt */ 4959 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4960 4961 /* Clear the interrupt */ 4962 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4963 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4964 4965 list_del(&ioa_cfg->reset_cmd->queue); 4966 del_timer(&ioa_cfg->reset_cmd->timer); 4967 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4968 } else { 4969 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 4970 ioa_cfg->ioa_unit_checked = 1; 4971 else 4972 dev_err(&ioa_cfg->pdev->dev, 4973 "Permanent IOA failure. 0x%08X\n", int_reg); 4974 4975 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4976 ioa_cfg->sdt_state = GET_DUMP; 4977 4978 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 4979 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 4980 } 4981 4982 return rc; 4983} 4984 4985/** 4986 * ipr_isr_eh - Interrupt service routine error handler 4987 * @ioa_cfg: ioa config struct 4988 * @msg: message to log 4989 * 4990 * Return value: 4991 * none 4992 **/ 4993static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) 4994{ 4995 ioa_cfg->errors_logged++; 4996 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); 4997 4998 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4999 ioa_cfg->sdt_state = GET_DUMP; 5000 5001 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5002} 5003 5004/** 5005 * ipr_isr - Interrupt service routine 5006 * @irq: irq number 5007 * @devp: pointer to ioa config struct 5008 * 5009 * Return value: 5010 * IRQ_NONE / IRQ_HANDLED 5011 **/ 5012static irqreturn_t ipr_isr(int irq, void *devp) 5013{ 5014 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 5015 unsigned long lock_flags = 0; 5016 volatile u32 int_reg, int_mask_reg; 5017 u32 ioasc; 5018 u16 cmd_index; 5019 int num_hrrq = 0; 5020 struct ipr_cmnd *ipr_cmd; 5021 irqreturn_t rc = IRQ_NONE; 5022 5023 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5024 5025 /* If interrupts are disabled, ignore the interrupt */ 5026 if (!ioa_cfg->allow_interrupts) { 5027 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5028 return IRQ_NONE; 5029 } 5030 5031 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 5032 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 5033 5034 /* If an interrupt on the adapter did not occur, ignore it. 5035 * Or in the case of SIS 64, check for a stage change interrupt. 5036 */ 5037 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { 5038 if (ioa_cfg->sis64) { 5039 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 5040 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 5041 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 5042 5043 /* clear stage change */ 5044 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 5045 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 5046 list_del(&ioa_cfg->reset_cmd->queue); 5047 del_timer(&ioa_cfg->reset_cmd->timer); 5048 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 5049 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5050 return IRQ_HANDLED; 5051 } 5052 } 5053 5054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5055 return IRQ_NONE; 5056 } 5057 5058 while (1) { 5059 ipr_cmd = NULL; 5060 5061 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 5062 ioa_cfg->toggle_bit) { 5063 5064 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 5065 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 5066 5067 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 5068 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); 5069 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5070 return IRQ_HANDLED; 5071 } 5072 5073 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 5074 5075 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5076 5077 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 5078 5079 list_del(&ipr_cmd->queue); 5080 del_timer(&ipr_cmd->timer); 5081 ipr_cmd->done(ipr_cmd); 5082 5083 rc = IRQ_HANDLED; 5084 5085 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 5086 ioa_cfg->hrrq_curr++; 5087 } else { 5088 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 5089 ioa_cfg->toggle_bit ^= 1u; 5090 } 5091 } 5092 5093 if (ipr_cmd != NULL) { 5094 /* Clear the PCI interrupt */ 5095 do { 5096 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 5097 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; 5098 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 5099 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 5100 5101 if (int_reg & IPR_PCII_HRRQ_UPDATED) { 5102 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); 5103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5104 return IRQ_HANDLED; 5105 } 5106 5107 } else 5108 break; 5109 } 5110 5111 if (unlikely(rc == IRQ_NONE)) 5112 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 5113 5114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5115 return rc; 5116} 5117 5118/** 5119 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 5120 * @ioa_cfg: ioa config struct 5121 * @ipr_cmd: ipr command struct 5122 * 5123 * Return value: 5124 * 0 on success / -1 on failure 5125 **/ 5126static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 5127 struct ipr_cmnd *ipr_cmd) 5128{ 5129 int i, nseg; 5130 struct scatterlist *sg; 5131 u32 length; 5132 u32 ioadl_flags = 0; 5133 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5134 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5135 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5136 5137 length = scsi_bufflen(scsi_cmd); 5138 if (!length) 5139 return 0; 5140 5141 nseg = scsi_dma_map(scsi_cmd); 5142 if (nseg < 0) { 5143 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5144 return -1; 5145 } 5146 5147 ipr_cmd->dma_use_sg = nseg; 5148 5149 ioarcb->data_transfer_length = cpu_to_be32(length); 5150 ioarcb->ioadl_len = 5151 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5152 5153 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5154 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5155 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5156 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5157 ioadl_flags = IPR_IOADL_FLAGS_READ; 5158 5159 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5160 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5161 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5162 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5163 } 5164 5165 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5166 return 0; 5167} 5168 5169/** 5170 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5171 * @ioa_cfg: ioa config struct 5172 * @ipr_cmd: ipr command struct 5173 * 5174 * Return value: 5175 * 0 on success / -1 on failure 5176 **/ 5177static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5178 struct ipr_cmnd *ipr_cmd) 5179{ 5180 int i, nseg; 5181 struct scatterlist *sg; 5182 u32 length; 5183 u32 ioadl_flags = 0; 5184 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5185 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5186 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5187 5188 length = scsi_bufflen(scsi_cmd); 5189 if (!length) 5190 return 0; 5191 5192 nseg = scsi_dma_map(scsi_cmd); 5193 if (nseg < 0) { 5194 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5195 return -1; 5196 } 5197 5198 ipr_cmd->dma_use_sg = nseg; 5199 5200 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5201 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5202 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5203 ioarcb->data_transfer_length = cpu_to_be32(length); 5204 ioarcb->ioadl_len = 5205 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5206 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5207 ioadl_flags = IPR_IOADL_FLAGS_READ; 5208 ioarcb->read_data_transfer_length = cpu_to_be32(length); 5209 ioarcb->read_ioadl_len = 5210 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5211 } 5212 5213 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 5214 ioadl = ioarcb->u.add_data.u.ioadl; 5215 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 5216 offsetof(struct ipr_ioarcb, u.add_data)); 5217 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5218 } 5219 5220 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5221 ioadl[i].flags_and_data_len = 5222 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5223 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 5224 } 5225 5226 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5227 return 0; 5228} 5229 5230/** 5231 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 5232 * @scsi_cmd: scsi command struct 5233 * 5234 * Return value: 5235 * task attributes 5236 **/ 5237static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 5238{ 5239 u8 tag[2]; 5240 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 5241 5242 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 5243 switch (tag[0]) { 5244 case MSG_SIMPLE_TAG: 5245 rc = IPR_FLAGS_LO_SIMPLE_TASK; 5246 break; 5247 case MSG_HEAD_TAG: 5248 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 5249 break; 5250 case MSG_ORDERED_TAG: 5251 rc = IPR_FLAGS_LO_ORDERED_TASK; 5252 break; 5253 }; 5254 } 5255 5256 return rc; 5257} 5258 5259/** 5260 * ipr_erp_done - Process completion of ERP for a device 5261 * @ipr_cmd: ipr command struct 5262 * 5263 * This function copies the sense buffer into the scsi_cmd 5264 * struct and pushes the scsi_done function. 5265 * 5266 * Return value: 5267 * nothing 5268 **/ 5269static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 5270{ 5271 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5272 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5273 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5274 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5275 5276 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5277 scsi_cmd->result |= (DID_ERROR << 16); 5278 scmd_printk(KERN_ERR, scsi_cmd, 5279 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 5280 } else { 5281 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 5282 SCSI_SENSE_BUFFERSIZE); 5283 } 5284 5285 if (res) { 5286 if (!ipr_is_naca_model(res)) 5287 res->needs_sync_complete = 1; 5288 res->in_erp = 0; 5289 } 5290 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5291 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5292 scsi_cmd->scsi_done(scsi_cmd); 5293} 5294 5295/** 5296 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 5297 * @ipr_cmd: ipr command struct 5298 * 5299 * Return value: 5300 * none 5301 **/ 5302static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 5303{ 5304 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5305 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5306 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5307 5308 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 5309 ioarcb->data_transfer_length = 0; 5310 ioarcb->read_data_transfer_length = 0; 5311 ioarcb->ioadl_len = 0; 5312 ioarcb->read_ioadl_len = 0; 5313 ioasa->hdr.ioasc = 0; 5314 ioasa->hdr.residual_data_len = 0; 5315 5316 if (ipr_cmd->ioa_cfg->sis64) 5317 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5318 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 5319 else { 5320 ioarcb->write_ioadl_addr = 5321 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 5322 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5323 } 5324} 5325 5326/** 5327 * ipr_erp_request_sense - Send request sense to a device 5328 * @ipr_cmd: ipr command struct 5329 * 5330 * This function sends a request sense to a device as a result 5331 * of a check condition. 5332 * 5333 * Return value: 5334 * nothing 5335 **/ 5336static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 5337{ 5338 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5339 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5340 5341 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5342 ipr_erp_done(ipr_cmd); 5343 return; 5344 } 5345 5346 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5347 5348 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 5349 cmd_pkt->cdb[0] = REQUEST_SENSE; 5350 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 5351 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 5352 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5353 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 5354 5355 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 5356 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 5357 5358 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 5359 IPR_REQUEST_SENSE_TIMEOUT * 2); 5360} 5361 5362/** 5363 * ipr_erp_cancel_all - Send cancel all to a device 5364 * @ipr_cmd: ipr command struct 5365 * 5366 * This function sends a cancel all to a device to clear the 5367 * queue. If we are running TCQ on the device, QERR is set to 1, 5368 * which means all outstanding ops have been dropped on the floor. 5369 * Cancel all will return them to us. 5370 * 5371 * Return value: 5372 * nothing 5373 **/ 5374static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 5375{ 5376 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5377 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5378 struct ipr_cmd_pkt *cmd_pkt; 5379 5380 res->in_erp = 1; 5381 5382 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5383 5384 if (!scsi_get_tag_type(scsi_cmd->device)) { 5385 ipr_erp_request_sense(ipr_cmd); 5386 return; 5387 } 5388 5389 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5390 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5391 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5392 5393 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 5394 IPR_CANCEL_ALL_TIMEOUT); 5395} 5396 5397/** 5398 * ipr_dump_ioasa - Dump contents of IOASA 5399 * @ioa_cfg: ioa config struct 5400 * @ipr_cmd: ipr command struct 5401 * @res: resource entry struct 5402 * 5403 * This function is invoked by the interrupt handler when ops 5404 * fail. It will log the IOASA if appropriate. Only called 5405 * for GPDD ops. 5406 * 5407 * Return value: 5408 * none 5409 **/ 5410static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 5411 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 5412{ 5413 int i; 5414 u16 data_len; 5415 u32 ioasc, fd_ioasc; 5416 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5417 __be32 *ioasa_data = (__be32 *)ioasa; 5418 int error_index; 5419 5420 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; 5421 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; 5422 5423 if (0 == ioasc) 5424 return; 5425 5426 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 5427 return; 5428 5429 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 5430 error_index = ipr_get_error(fd_ioasc); 5431 else 5432 error_index = ipr_get_error(ioasc); 5433 5434 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 5435 /* Don't log an error if the IOA already logged one */ 5436 if (ioasa->hdr.ilid != 0) 5437 return; 5438 5439 if (!ipr_is_gscsi(res)) 5440 return; 5441 5442 if (ipr_error_table[error_index].log_ioasa == 0) 5443 return; 5444 } 5445 5446 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 5447 5448 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); 5449 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) 5450 data_len = sizeof(struct ipr_ioasa64); 5451 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) 5452 data_len = sizeof(struct ipr_ioasa); 5453 5454 ipr_err("IOASA Dump:\n"); 5455 5456 for (i = 0; i < data_len / 4; i += 4) { 5457 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 5458 be32_to_cpu(ioasa_data[i]), 5459 be32_to_cpu(ioasa_data[i+1]), 5460 be32_to_cpu(ioasa_data[i+2]), 5461 be32_to_cpu(ioasa_data[i+3])); 5462 } 5463} 5464 5465/** 5466 * ipr_gen_sense - Generate SCSI sense data from an IOASA 5467 * @ioasa: IOASA 5468 * @sense_buf: sense data buffer 5469 * 5470 * Return value: 5471 * none 5472 **/ 5473static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 5474{ 5475 u32 failing_lba; 5476 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 5477 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 5478 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5479 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); 5480 5481 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 5482 5483 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 5484 return; 5485 5486 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 5487 5488 if (ipr_is_vset_device(res) && 5489 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 5490 ioasa->u.vset.failing_lba_hi != 0) { 5491 sense_buf[0] = 0x72; 5492 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 5493 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 5494 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 5495 5496 sense_buf[7] = 12; 5497 sense_buf[8] = 0; 5498 sense_buf[9] = 0x0A; 5499 sense_buf[10] = 0x80; 5500 5501 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 5502 5503 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 5504 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 5505 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 5506 sense_buf[15] = failing_lba & 0x000000ff; 5507 5508 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5509 5510 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 5511 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 5512 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 5513 sense_buf[19] = failing_lba & 0x000000ff; 5514 } else { 5515 sense_buf[0] = 0x70; 5516 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 5517 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 5518 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 5519 5520 /* Illegal request */ 5521 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 5522 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 5523 sense_buf[7] = 10; /* additional length */ 5524 5525 /* IOARCB was in error */ 5526 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 5527 sense_buf[15] = 0xC0; 5528 else /* Parameter data was invalid */ 5529 sense_buf[15] = 0x80; 5530 5531 sense_buf[16] = 5532 ((IPR_FIELD_POINTER_MASK & 5533 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; 5534 sense_buf[17] = 5535 (IPR_FIELD_POINTER_MASK & 5536 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; 5537 } else { 5538 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 5539 if (ipr_is_vset_device(res)) 5540 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5541 else 5542 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 5543 5544 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 5545 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 5546 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 5547 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 5548 sense_buf[6] = failing_lba & 0x000000ff; 5549 } 5550 5551 sense_buf[7] = 6; /* additional length */ 5552 } 5553 } 5554} 5555 5556/** 5557 * ipr_get_autosense - Copy autosense data to sense buffer 5558 * @ipr_cmd: ipr command struct 5559 * 5560 * This function copies the autosense buffer to the buffer 5561 * in the scsi_cmd, if there is autosense available. 5562 * 5563 * Return value: 5564 * 1 if autosense was available / 0 if not 5565 **/ 5566static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 5567{ 5568 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5569 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 5570 5571 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 5572 return 0; 5573 5574 if (ipr_cmd->ioa_cfg->sis64) 5575 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, 5576 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), 5577 SCSI_SENSE_BUFFERSIZE)); 5578 else 5579 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 5580 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 5581 SCSI_SENSE_BUFFERSIZE)); 5582 return 1; 5583} 5584 5585/** 5586 * ipr_erp_start - Process an error response for a SCSI op 5587 * @ioa_cfg: ioa config struct 5588 * @ipr_cmd: ipr command struct 5589 * 5590 * This function determines whether or not to initiate ERP 5591 * on the affected device. 5592 * 5593 * Return value: 5594 * nothing 5595 **/ 5596static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 5597 struct ipr_cmnd *ipr_cmd) 5598{ 5599 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5600 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5601 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5602 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 5603 5604 if (!res) { 5605 ipr_scsi_eh_done(ipr_cmd); 5606 return; 5607 } 5608 5609 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 5610 ipr_gen_sense(ipr_cmd); 5611 5612 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5613 5614 switch (masked_ioasc) { 5615 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 5616 if (ipr_is_naca_model(res)) 5617 scsi_cmd->result |= (DID_ABORT << 16); 5618 else 5619 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5620 break; 5621 case IPR_IOASC_IR_RESOURCE_HANDLE: 5622 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 5623 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5624 break; 5625 case IPR_IOASC_HW_SEL_TIMEOUT: 5626 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5627 if (!ipr_is_naca_model(res)) 5628 res->needs_sync_complete = 1; 5629 break; 5630 case IPR_IOASC_SYNC_REQUIRED: 5631 if (!res->in_erp) 5632 res->needs_sync_complete = 1; 5633 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5634 break; 5635 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 5636 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 5637 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 5638 break; 5639 case IPR_IOASC_BUS_WAS_RESET: 5640 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 5641 /* 5642 * Report the bus reset and ask for a retry. The device 5643 * will give CC/UA the next command. 5644 */ 5645 if (!res->resetting_device) 5646 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 5647 scsi_cmd->result |= (DID_ERROR << 16); 5648 if (!ipr_is_naca_model(res)) 5649 res->needs_sync_complete = 1; 5650 break; 5651 case IPR_IOASC_HW_DEV_BUS_STATUS: 5652 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 5653 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 5654 if (!ipr_get_autosense(ipr_cmd)) { 5655 if (!ipr_is_naca_model(res)) { 5656 ipr_erp_cancel_all(ipr_cmd); 5657 return; 5658 } 5659 } 5660 } 5661 if (!ipr_is_naca_model(res)) 5662 res->needs_sync_complete = 1; 5663 break; 5664 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 5665 break; 5666 default: 5667 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5668 scsi_cmd->result |= (DID_ERROR << 16); 5669 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 5670 res->needs_sync_complete = 1; 5671 break; 5672 } 5673 5674 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5675 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5676 scsi_cmd->scsi_done(scsi_cmd); 5677} 5678 5679/** 5680 * ipr_scsi_done - mid-layer done function 5681 * @ipr_cmd: ipr command struct 5682 * 5683 * This function is invoked by the interrupt handler for 5684 * ops generated by the SCSI mid-layer 5685 * 5686 * Return value: 5687 * none 5688 **/ 5689static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 5690{ 5691 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5692 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5693 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5694 5695 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); 5696 5697 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 5698 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5699 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5700 scsi_cmd->scsi_done(scsi_cmd); 5701 } else 5702 ipr_erp_start(ioa_cfg, ipr_cmd); 5703} 5704 5705/** 5706 * ipr_queuecommand - Queue a mid-layer request 5707 * @scsi_cmd: scsi command struct 5708 * @done: done function 5709 * 5710 * This function queues a request generated by the mid-layer. 5711 * 5712 * Return value: 5713 * 0 on success 5714 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 5715 * SCSI_MLQUEUE_HOST_BUSY if host is busy 5716 **/ 5717static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd, 5718 void (*done) (struct scsi_cmnd *)) 5719{ 5720 struct ipr_ioa_cfg *ioa_cfg; 5721 struct ipr_resource_entry *res; 5722 struct ipr_ioarcb *ioarcb; 5723 struct ipr_cmnd *ipr_cmd; 5724 int rc = 0; 5725 5726 scsi_cmd->scsi_done = done; 5727 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5728 res = scsi_cmd->device->hostdata; 5729 scsi_cmd->result = (DID_OK << 16); 5730 5731 /* 5732 * We are currently blocking all devices due to a host reset 5733 * We have told the host to stop giving us new requests, but 5734 * ERP ops don't count. FIXME 5735 */ 5736 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 5737 return SCSI_MLQUEUE_HOST_BUSY; 5738 5739 /* 5740 * FIXME - Create scsi_set_host_offline interface 5741 * and the ioa_is_dead check can be removed 5742 */ 5743 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 5744 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 5745 scsi_cmd->result = (DID_NO_CONNECT << 16); 5746 scsi_cmd->scsi_done(scsi_cmd); 5747 return 0; 5748 } 5749 5750 if (ipr_is_gata(res) && res->sata_port) 5751 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap); 5752 5753 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5754 ioarcb = &ipr_cmd->ioarcb; 5755 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5756 5757 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 5758 ipr_cmd->scsi_cmd = scsi_cmd; 5759 ioarcb->res_handle = res->res_handle; 5760 ipr_cmd->done = ipr_scsi_done; 5761 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5762 5763 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 5764 if (scsi_cmd->underflow == 0) 5765 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5766 5767 if (res->needs_sync_complete) { 5768 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 5769 res->needs_sync_complete = 0; 5770 } 5771 5772 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5773 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 5774 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 5775 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 5776 } 5777 5778 if (scsi_cmd->cmnd[0] >= 0xC0 && 5779 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 5780 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5781 5782 if (likely(rc == 0)) { 5783 if (ioa_cfg->sis64) 5784 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 5785 else 5786 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 5787 } 5788 5789 if (likely(rc == 0)) { 5790 mb(); 5791 ipr_send_command(ipr_cmd); 5792 } else { 5793 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5794 return SCSI_MLQUEUE_HOST_BUSY; 5795 } 5796 5797 return 0; 5798} 5799 5800static DEF_SCSI_QCMD(ipr_queuecommand) 5801 5802/** 5803 * ipr_ioctl - IOCTL handler 5804 * @sdev: scsi device struct 5805 * @cmd: IOCTL cmd 5806 * @arg: IOCTL arg 5807 * 5808 * Return value: 5809 * 0 on success / other on failure 5810 **/ 5811static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 5812{ 5813 struct ipr_resource_entry *res; 5814 5815 res = (struct ipr_resource_entry *)sdev->hostdata; 5816 if (res && ipr_is_gata(res)) { 5817 if (cmd == HDIO_GET_IDENTITY) 5818 return -ENOTTY; 5819 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 5820 } 5821 5822 return -EINVAL; 5823} 5824 5825/** 5826 * ipr_info - Get information about the card/driver 5827 * @scsi_host: scsi host struct 5828 * 5829 * Return value: 5830 * pointer to buffer with description string 5831 **/ 5832static const char * ipr_ioa_info(struct Scsi_Host *host) 5833{ 5834 static char buffer[512]; 5835 struct ipr_ioa_cfg *ioa_cfg; 5836 unsigned long lock_flags = 0; 5837 5838 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 5839 5840 spin_lock_irqsave(host->host_lock, lock_flags); 5841 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 5842 spin_unlock_irqrestore(host->host_lock, lock_flags); 5843 5844 return buffer; 5845} 5846 5847static struct scsi_host_template driver_template = { 5848 .module = THIS_MODULE, 5849 .name = "IPR", 5850 .info = ipr_ioa_info, 5851 .ioctl = ipr_ioctl, 5852 .queuecommand = ipr_queuecommand, 5853 .eh_abort_handler = ipr_eh_abort, 5854 .eh_device_reset_handler = ipr_eh_dev_reset, 5855 .eh_host_reset_handler = ipr_eh_host_reset, 5856 .slave_alloc = ipr_slave_alloc, 5857 .slave_configure = ipr_slave_configure, 5858 .slave_destroy = ipr_slave_destroy, 5859 .target_alloc = ipr_target_alloc, 5860 .target_destroy = ipr_target_destroy, 5861 .change_queue_depth = ipr_change_queue_depth, 5862 .change_queue_type = ipr_change_queue_type, 5863 .bios_param = ipr_biosparam, 5864 .can_queue = IPR_MAX_COMMANDS, 5865 .this_id = -1, 5866 .sg_tablesize = IPR_MAX_SGLIST, 5867 .max_sectors = IPR_IOA_MAX_SECTORS, 5868 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5869 .use_clustering = ENABLE_CLUSTERING, 5870 .shost_attrs = ipr_ioa_attrs, 5871 .sdev_attrs = ipr_dev_attrs, 5872 .proc_name = IPR_NAME 5873}; 5874 5875/** 5876 * ipr_ata_phy_reset - libata phy_reset handler 5877 * @ap: ata port to reset 5878 * 5879 **/ 5880static void ipr_ata_phy_reset(struct ata_port *ap) 5881{ 5882 unsigned long flags; 5883 struct ipr_sata_port *sata_port = ap->private_data; 5884 struct ipr_resource_entry *res = sata_port->res; 5885 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5886 int rc; 5887 5888 ENTER; 5889 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5890 while(ioa_cfg->in_reset_reload) { 5891 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5892 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5893 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5894 } 5895 5896 if (!ioa_cfg->allow_cmds) 5897 goto out_unlock; 5898 5899 rc = ipr_device_reset(ioa_cfg, res); 5900 5901 if (rc) { 5902 ap->link.device[0].class = ATA_DEV_NONE; 5903 goto out_unlock; 5904 } 5905 5906 ap->link.device[0].class = res->ata_class; 5907 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 5908 ap->link.device[0].class = ATA_DEV_NONE; 5909 5910out_unlock: 5911 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5912 LEAVE; 5913} 5914 5915/** 5916 * ipr_ata_post_internal - Cleanup after an internal command 5917 * @qc: ATA queued command 5918 * 5919 * Return value: 5920 * none 5921 **/ 5922static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5923{ 5924 struct ipr_sata_port *sata_port = qc->ap->private_data; 5925 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5926 struct ipr_cmnd *ipr_cmd; 5927 unsigned long flags; 5928 5929 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5930 while(ioa_cfg->in_reset_reload) { 5931 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5932 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5933 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5934 } 5935 5936 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5937 if (ipr_cmd->qc == qc) { 5938 ipr_device_reset(ioa_cfg, sata_port->res); 5939 break; 5940 } 5941 } 5942 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5943} 5944 5945/** 5946 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5947 * @regs: destination 5948 * @tf: source ATA taskfile 5949 * 5950 * Return value: 5951 * none 5952 **/ 5953static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5954 struct ata_taskfile *tf) 5955{ 5956 regs->feature = tf->feature; 5957 regs->nsect = tf->nsect; 5958 regs->lbal = tf->lbal; 5959 regs->lbam = tf->lbam; 5960 regs->lbah = tf->lbah; 5961 regs->device = tf->device; 5962 regs->command = tf->command; 5963 regs->hob_feature = tf->hob_feature; 5964 regs->hob_nsect = tf->hob_nsect; 5965 regs->hob_lbal = tf->hob_lbal; 5966 regs->hob_lbam = tf->hob_lbam; 5967 regs->hob_lbah = tf->hob_lbah; 5968 regs->ctl = tf->ctl; 5969} 5970 5971/** 5972 * ipr_sata_done - done function for SATA commands 5973 * @ipr_cmd: ipr command struct 5974 * 5975 * This function is invoked by the interrupt handler for 5976 * ops generated by the SCSI mid-layer to SATA devices 5977 * 5978 * Return value: 5979 * none 5980 **/ 5981static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5982{ 5983 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5984 struct ata_queued_cmd *qc = ipr_cmd->qc; 5985 struct ipr_sata_port *sata_port = qc->ap->private_data; 5986 struct ipr_resource_entry *res = sata_port->res; 5987 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5988 5989 if (ipr_cmd->ioa_cfg->sis64) 5990 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 5991 sizeof(struct ipr_ioasa_gata)); 5992 else 5993 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 5994 sizeof(struct ipr_ioasa_gata)); 5995 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5996 5997 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 5998 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 5999 6000 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 6001 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); 6002 else 6003 qc->err_mask |= ac_err_mask(sata_port->ioasa.status); 6004 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6005 ata_qc_complete(qc); 6006} 6007 6008/** 6009 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 6010 * @ipr_cmd: ipr command struct 6011 * @qc: ATA queued command 6012 * 6013 **/ 6014static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 6015 struct ata_queued_cmd *qc) 6016{ 6017 u32 ioadl_flags = 0; 6018 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6019 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 6020 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 6021 int len = qc->nbytes; 6022 struct scatterlist *sg; 6023 unsigned int si; 6024 dma_addr_t dma_addr = ipr_cmd->dma_addr; 6025 6026 if (len == 0) 6027 return; 6028 6029 if (qc->dma_dir == DMA_TO_DEVICE) { 6030 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6031 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6032 } else if (qc->dma_dir == DMA_FROM_DEVICE) 6033 ioadl_flags = IPR_IOADL_FLAGS_READ; 6034 6035 ioarcb->data_transfer_length = cpu_to_be32(len); 6036 ioarcb->ioadl_len = 6037 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 6038 ioarcb->u.sis64_addr_data.data_ioadl_addr = 6039 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); 6040 6041 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6042 ioadl64->flags = cpu_to_be32(ioadl_flags); 6043 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 6044 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 6045 6046 last_ioadl64 = ioadl64; 6047 ioadl64++; 6048 } 6049 6050 if (likely(last_ioadl64)) 6051 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6052} 6053 6054/** 6055 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 6056 * @ipr_cmd: ipr command struct 6057 * @qc: ATA queued command 6058 * 6059 **/ 6060static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 6061 struct ata_queued_cmd *qc) 6062{ 6063 u32 ioadl_flags = 0; 6064 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6065 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 6066 struct ipr_ioadl_desc *last_ioadl = NULL; 6067 int len = qc->nbytes; 6068 struct scatterlist *sg; 6069 unsigned int si; 6070 6071 if (len == 0) 6072 return; 6073 6074 if (qc->dma_dir == DMA_TO_DEVICE) { 6075 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6076 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6077 ioarcb->data_transfer_length = cpu_to_be32(len); 6078 ioarcb->ioadl_len = 6079 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6080 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 6081 ioadl_flags = IPR_IOADL_FLAGS_READ; 6082 ioarcb->read_data_transfer_length = cpu_to_be32(len); 6083 ioarcb->read_ioadl_len = 6084 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6085 } 6086 6087 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6088 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 6089 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 6090 6091 last_ioadl = ioadl; 6092 ioadl++; 6093 } 6094 6095 if (likely(last_ioadl)) 6096 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6097} 6098 6099/** 6100 * ipr_qc_issue - Issue a SATA qc to a device 6101 * @qc: queued command 6102 * 6103 * Return value: 6104 * 0 if success 6105 **/ 6106static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 6107{ 6108 struct ata_port *ap = qc->ap; 6109 struct ipr_sata_port *sata_port = ap->private_data; 6110 struct ipr_resource_entry *res = sata_port->res; 6111 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6112 struct ipr_cmnd *ipr_cmd; 6113 struct ipr_ioarcb *ioarcb; 6114 struct ipr_ioarcb_ata_regs *regs; 6115 6116 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 6117 return AC_ERR_SYSTEM; 6118 6119 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6120 ioarcb = &ipr_cmd->ioarcb; 6121 6122 if (ioa_cfg->sis64) { 6123 regs = &ipr_cmd->i.ata_ioadl.regs; 6124 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 6125 } else 6126 regs = &ioarcb->u.add_data.u.regs; 6127 6128 memset(regs, 0, sizeof(*regs)); 6129 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 6130 6131 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6132 ipr_cmd->qc = qc; 6133 ipr_cmd->done = ipr_sata_done; 6134 ipr_cmd->ioarcb.res_handle = res->res_handle; 6135 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 6136 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 6137 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 6138 ipr_cmd->dma_use_sg = qc->n_elem; 6139 6140 if (ioa_cfg->sis64) 6141 ipr_build_ata_ioadl64(ipr_cmd, qc); 6142 else 6143 ipr_build_ata_ioadl(ipr_cmd, qc); 6144 6145 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 6146 ipr_copy_sata_tf(regs, &qc->tf); 6147 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 6148 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 6149 6150 switch (qc->tf.protocol) { 6151 case ATA_PROT_NODATA: 6152 case ATA_PROT_PIO: 6153 break; 6154 6155 case ATA_PROT_DMA: 6156 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6157 break; 6158 6159 case ATAPI_PROT_PIO: 6160 case ATAPI_PROT_NODATA: 6161 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6162 break; 6163 6164 case ATAPI_PROT_DMA: 6165 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6166 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6167 break; 6168 6169 default: 6170 WARN_ON(1); 6171 return AC_ERR_INVALID; 6172 } 6173 6174 mb(); 6175 6176 ipr_send_command(ipr_cmd); 6177 6178 return 0; 6179} 6180 6181/** 6182 * ipr_qc_fill_rtf - Read result TF 6183 * @qc: ATA queued command 6184 * 6185 * Return value: 6186 * true 6187 **/ 6188static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 6189{ 6190 struct ipr_sata_port *sata_port = qc->ap->private_data; 6191 struct ipr_ioasa_gata *g = &sata_port->ioasa; 6192 struct ata_taskfile *tf = &qc->result_tf; 6193 6194 tf->feature = g->error; 6195 tf->nsect = g->nsect; 6196 tf->lbal = g->lbal; 6197 tf->lbam = g->lbam; 6198 tf->lbah = g->lbah; 6199 tf->device = g->device; 6200 tf->command = g->status; 6201 tf->hob_nsect = g->hob_nsect; 6202 tf->hob_lbal = g->hob_lbal; 6203 tf->hob_lbam = g->hob_lbam; 6204 tf->hob_lbah = g->hob_lbah; 6205 tf->ctl = g->alt_status; 6206 6207 return true; 6208} 6209 6210static struct ata_port_operations ipr_sata_ops = { 6211 .phy_reset = ipr_ata_phy_reset, 6212 .hardreset = ipr_sata_reset, 6213 .post_internal_cmd = ipr_ata_post_internal, 6214 .qc_prep = ata_noop_qc_prep, 6215 .qc_issue = ipr_qc_issue, 6216 .qc_fill_rtf = ipr_qc_fill_rtf, 6217 .port_start = ata_sas_port_start, 6218 .port_stop = ata_sas_port_stop 6219}; 6220 6221static struct ata_port_info sata_port_info = { 6222 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_PIO_DMA, 6223 .pio_mask = ATA_PIO4_ONLY, 6224 .mwdma_mask = ATA_MWDMA2, 6225 .udma_mask = ATA_UDMA6, 6226 .port_ops = &ipr_sata_ops 6227}; 6228 6229#ifdef CONFIG_PPC_PSERIES 6230static const u16 ipr_blocked_processors[] = { 6231 PV_NORTHSTAR, 6232 PV_PULSAR, 6233 PV_POWER4, 6234 PV_ICESTAR, 6235 PV_SSTAR, 6236 PV_POWER4p, 6237 PV_630, 6238 PV_630p 6239}; 6240 6241/** 6242 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 6243 * @ioa_cfg: ioa cfg struct 6244 * 6245 * Adapters that use Gemstone revision < 3.1 do not work reliably on 6246 * certain pSeries hardware. This function determines if the given 6247 * adapter is in one of these confgurations or not. 6248 * 6249 * Return value: 6250 * 1 if adapter is not supported / 0 if adapter is supported 6251 **/ 6252static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 6253{ 6254 int i; 6255 6256 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 6257 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 6258 if (__is_processor(ipr_blocked_processors[i])) 6259 return 1; 6260 } 6261 } 6262 return 0; 6263} 6264#else 6265#define ipr_invalid_adapter(ioa_cfg) 0 6266#endif 6267 6268/** 6269 * ipr_ioa_bringdown_done - IOA bring down completion. 6270 * @ipr_cmd: ipr command struct 6271 * 6272 * This function processes the completion of an adapter bring down. 6273 * It wakes any reset sleepers. 6274 * 6275 * Return value: 6276 * IPR_RC_JOB_RETURN 6277 **/ 6278static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 6279{ 6280 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6281 6282 ENTER; 6283 ioa_cfg->in_reset_reload = 0; 6284 ioa_cfg->reset_retries = 0; 6285 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6286 wake_up_all(&ioa_cfg->reset_wait_q); 6287 6288 spin_unlock_irq(ioa_cfg->host->host_lock); 6289 scsi_unblock_requests(ioa_cfg->host); 6290 spin_lock_irq(ioa_cfg->host->host_lock); 6291 LEAVE; 6292 6293 return IPR_RC_JOB_RETURN; 6294} 6295 6296/** 6297 * ipr_ioa_reset_done - IOA reset completion. 6298 * @ipr_cmd: ipr command struct 6299 * 6300 * This function processes the completion of an adapter reset. 6301 * It schedules any necessary mid-layer add/removes and 6302 * wakes any reset sleepers. 6303 * 6304 * Return value: 6305 * IPR_RC_JOB_RETURN 6306 **/ 6307static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 6308{ 6309 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6310 struct ipr_resource_entry *res; 6311 struct ipr_hostrcb *hostrcb, *temp; 6312 int i = 0; 6313 6314 ENTER; 6315 ioa_cfg->in_reset_reload = 0; 6316 ioa_cfg->allow_cmds = 1; 6317 ioa_cfg->reset_cmd = NULL; 6318 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 6319 6320 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 6321 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 6322 ipr_trace; 6323 break; 6324 } 6325 } 6326 schedule_work(&ioa_cfg->work_q); 6327 6328 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 6329 list_del(&hostrcb->queue); 6330 if (i++ < IPR_NUM_LOG_HCAMS) 6331 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 6332 else 6333 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 6334 } 6335 6336 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 6337 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 6338 6339 ioa_cfg->reset_retries = 0; 6340 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6341 wake_up_all(&ioa_cfg->reset_wait_q); 6342 6343 spin_unlock(ioa_cfg->host->host_lock); 6344 scsi_unblock_requests(ioa_cfg->host); 6345 spin_lock(ioa_cfg->host->host_lock); 6346 6347 if (!ioa_cfg->allow_cmds) 6348 scsi_block_requests(ioa_cfg->host); 6349 6350 LEAVE; 6351 return IPR_RC_JOB_RETURN; 6352} 6353 6354/** 6355 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 6356 * @supported_dev: supported device struct 6357 * @vpids: vendor product id struct 6358 * 6359 * Return value: 6360 * none 6361 **/ 6362static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 6363 struct ipr_std_inq_vpids *vpids) 6364{ 6365 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 6366 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 6367 supported_dev->num_records = 1; 6368 supported_dev->data_length = 6369 cpu_to_be16(sizeof(struct ipr_supported_device)); 6370 supported_dev->reserved = 0; 6371} 6372 6373/** 6374 * ipr_set_supported_devs - Send Set Supported Devices for a device 6375 * @ipr_cmd: ipr command struct 6376 * 6377 * This function sends a Set Supported Devices to the adapter 6378 * 6379 * Return value: 6380 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6381 **/ 6382static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 6383{ 6384 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6385 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 6386 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6387 struct ipr_resource_entry *res = ipr_cmd->u.res; 6388 6389 ipr_cmd->job_step = ipr_ioa_reset_done; 6390 6391 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 6392 if (!ipr_is_scsi_disk(res)) 6393 continue; 6394 6395 ipr_cmd->u.res = res; 6396 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 6397 6398 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6399 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6400 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6401 6402 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 6403 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 6404 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 6405 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 6406 6407 ipr_init_ioadl(ipr_cmd, 6408 ioa_cfg->vpd_cbs_dma + 6409 offsetof(struct ipr_misc_cbs, supp_dev), 6410 sizeof(struct ipr_supported_device), 6411 IPR_IOADL_FLAGS_WRITE_LAST); 6412 6413 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6414 IPR_SET_SUP_DEVICE_TIMEOUT); 6415 6416 if (!ioa_cfg->sis64) 6417 ipr_cmd->job_step = ipr_set_supported_devs; 6418 return IPR_RC_JOB_RETURN; 6419 } 6420 6421 return IPR_RC_JOB_CONTINUE; 6422} 6423 6424/** 6425 * ipr_get_mode_page - Locate specified mode page 6426 * @mode_pages: mode page buffer 6427 * @page_code: page code to find 6428 * @len: minimum required length for mode page 6429 * 6430 * Return value: 6431 * pointer to mode page / NULL on failure 6432 **/ 6433static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 6434 u32 page_code, u32 len) 6435{ 6436 struct ipr_mode_page_hdr *mode_hdr; 6437 u32 page_length; 6438 u32 length; 6439 6440 if (!mode_pages || (mode_pages->hdr.length == 0)) 6441 return NULL; 6442 6443 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 6444 mode_hdr = (struct ipr_mode_page_hdr *) 6445 (mode_pages->data + mode_pages->hdr.block_desc_len); 6446 6447 while (length) { 6448 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 6449 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 6450 return mode_hdr; 6451 break; 6452 } else { 6453 page_length = (sizeof(struct ipr_mode_page_hdr) + 6454 mode_hdr->page_length); 6455 length -= page_length; 6456 mode_hdr = (struct ipr_mode_page_hdr *) 6457 ((unsigned long)mode_hdr + page_length); 6458 } 6459 } 6460 return NULL; 6461} 6462 6463/** 6464 * ipr_check_term_power - Check for term power errors 6465 * @ioa_cfg: ioa config struct 6466 * @mode_pages: IOAFP mode pages buffer 6467 * 6468 * Check the IOAFP's mode page 28 for term power errors 6469 * 6470 * Return value: 6471 * nothing 6472 **/ 6473static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 6474 struct ipr_mode_pages *mode_pages) 6475{ 6476 int i; 6477 int entry_length; 6478 struct ipr_dev_bus_entry *bus; 6479 struct ipr_mode_page28 *mode_page; 6480 6481 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6482 sizeof(struct ipr_mode_page28)); 6483 6484 entry_length = mode_page->entry_length; 6485 6486 bus = mode_page->bus; 6487 6488 for (i = 0; i < mode_page->num_entries; i++) { 6489 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 6490 dev_err(&ioa_cfg->pdev->dev, 6491 "Term power is absent on scsi bus %d\n", 6492 bus->res_addr.bus); 6493 } 6494 6495 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 6496 } 6497} 6498 6499/** 6500 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 6501 * @ioa_cfg: ioa config struct 6502 * 6503 * Looks through the config table checking for SES devices. If 6504 * the SES device is in the SES table indicating a maximum SCSI 6505 * bus speed, the speed is limited for the bus. 6506 * 6507 * Return value: 6508 * none 6509 **/ 6510static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 6511{ 6512 u32 max_xfer_rate; 6513 int i; 6514 6515 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 6516 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 6517 ioa_cfg->bus_attr[i].bus_width); 6518 6519 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 6520 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 6521 } 6522} 6523 6524/** 6525 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 6526 * @ioa_cfg: ioa config struct 6527 * @mode_pages: mode page 28 buffer 6528 * 6529 * Updates mode page 28 based on driver configuration 6530 * 6531 * Return value: 6532 * none 6533 **/ 6534static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 6535 struct ipr_mode_pages *mode_pages) 6536{ 6537 int i, entry_length; 6538 struct ipr_dev_bus_entry *bus; 6539 struct ipr_bus_attributes *bus_attr; 6540 struct ipr_mode_page28 *mode_page; 6541 6542 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6543 sizeof(struct ipr_mode_page28)); 6544 6545 entry_length = mode_page->entry_length; 6546 6547 /* Loop for each device bus entry */ 6548 for (i = 0, bus = mode_page->bus; 6549 i < mode_page->num_entries; 6550 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 6551 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 6552 dev_err(&ioa_cfg->pdev->dev, 6553 "Invalid resource address reported: 0x%08X\n", 6554 IPR_GET_PHYS_LOC(bus->res_addr)); 6555 continue; 6556 } 6557 6558 bus_attr = &ioa_cfg->bus_attr[i]; 6559 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 6560 bus->bus_width = bus_attr->bus_width; 6561 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 6562 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 6563 if (bus_attr->qas_enabled) 6564 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 6565 else 6566 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 6567 } 6568} 6569 6570/** 6571 * ipr_build_mode_select - Build a mode select command 6572 * @ipr_cmd: ipr command struct 6573 * @res_handle: resource handle to send command to 6574 * @parm: Byte 2 of Mode Sense command 6575 * @dma_addr: DMA buffer address 6576 * @xfer_len: data transfer length 6577 * 6578 * Return value: 6579 * none 6580 **/ 6581static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 6582 __be32 res_handle, u8 parm, 6583 dma_addr_t dma_addr, u8 xfer_len) 6584{ 6585 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6586 6587 ioarcb->res_handle = res_handle; 6588 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6589 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6590 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 6591 ioarcb->cmd_pkt.cdb[1] = parm; 6592 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6593 6594 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 6595} 6596 6597/** 6598 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 6599 * @ipr_cmd: ipr command struct 6600 * 6601 * This function sets up the SCSI bus attributes and sends 6602 * a Mode Select for Page 28 to activate them. 6603 * 6604 * Return value: 6605 * IPR_RC_JOB_RETURN 6606 **/ 6607static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 6608{ 6609 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6610 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6611 int length; 6612 6613 ENTER; 6614 ipr_scsi_bus_speed_limit(ioa_cfg); 6615 ipr_check_term_power(ioa_cfg, mode_pages); 6616 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 6617 length = mode_pages->hdr.length + 1; 6618 mode_pages->hdr.length = 0; 6619 6620 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6621 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6622 length); 6623 6624 ipr_cmd->job_step = ipr_set_supported_devs; 6625 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6626 struct ipr_resource_entry, queue); 6627 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6628 6629 LEAVE; 6630 return IPR_RC_JOB_RETURN; 6631} 6632 6633/** 6634 * ipr_build_mode_sense - Builds a mode sense command 6635 * @ipr_cmd: ipr command struct 6636 * @res: resource entry struct 6637 * @parm: Byte 2 of mode sense command 6638 * @dma_addr: DMA address of mode sense buffer 6639 * @xfer_len: Size of DMA buffer 6640 * 6641 * Return value: 6642 * none 6643 **/ 6644static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 6645 __be32 res_handle, 6646 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 6647{ 6648 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6649 6650 ioarcb->res_handle = res_handle; 6651 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 6652 ioarcb->cmd_pkt.cdb[2] = parm; 6653 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6654 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6655 6656 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6657} 6658 6659/** 6660 * ipr_reset_cmd_failed - Handle failure of IOA reset command 6661 * @ipr_cmd: ipr command struct 6662 * 6663 * This function handles the failure of an IOA bringup command. 6664 * 6665 * Return value: 6666 * IPR_RC_JOB_RETURN 6667 **/ 6668static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 6669{ 6670 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6671 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6672 6673 dev_err(&ioa_cfg->pdev->dev, 6674 "0x%02X failed with IOASC: 0x%08X\n", 6675 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 6676 6677 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6678 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6679 return IPR_RC_JOB_RETURN; 6680} 6681 6682/** 6683 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 6684 * @ipr_cmd: ipr command struct 6685 * 6686 * This function handles the failure of a Mode Sense to the IOAFP. 6687 * Some adapters do not handle all mode pages. 6688 * 6689 * Return value: 6690 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6691 **/ 6692static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 6693{ 6694 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6695 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6696 6697 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6698 ipr_cmd->job_step = ipr_set_supported_devs; 6699 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6700 struct ipr_resource_entry, queue); 6701 return IPR_RC_JOB_CONTINUE; 6702 } 6703 6704 return ipr_reset_cmd_failed(ipr_cmd); 6705} 6706 6707/** 6708 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 6709 * @ipr_cmd: ipr command struct 6710 * 6711 * This function send a Page 28 mode sense to the IOA to 6712 * retrieve SCSI bus attributes. 6713 * 6714 * Return value: 6715 * IPR_RC_JOB_RETURN 6716 **/ 6717static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 6718{ 6719 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6720 6721 ENTER; 6722 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6723 0x28, ioa_cfg->vpd_cbs_dma + 6724 offsetof(struct ipr_misc_cbs, mode_pages), 6725 sizeof(struct ipr_mode_pages)); 6726 6727 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 6728 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 6729 6730 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6731 6732 LEAVE; 6733 return IPR_RC_JOB_RETURN; 6734} 6735 6736/** 6737 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 6738 * @ipr_cmd: ipr command struct 6739 * 6740 * This function enables dual IOA RAID support if possible. 6741 * 6742 * Return value: 6743 * IPR_RC_JOB_RETURN 6744 **/ 6745static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 6746{ 6747 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6748 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6749 struct ipr_mode_page24 *mode_page; 6750 int length; 6751 6752 ENTER; 6753 mode_page = ipr_get_mode_page(mode_pages, 0x24, 6754 sizeof(struct ipr_mode_page24)); 6755 6756 if (mode_page) 6757 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 6758 6759 length = mode_pages->hdr.length + 1; 6760 mode_pages->hdr.length = 0; 6761 6762 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6763 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6764 length); 6765 6766 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6767 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6768 6769 LEAVE; 6770 return IPR_RC_JOB_RETURN; 6771} 6772 6773/** 6774 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 6775 * @ipr_cmd: ipr command struct 6776 * 6777 * This function handles the failure of a Mode Sense to the IOAFP. 6778 * Some adapters do not handle all mode pages. 6779 * 6780 * Return value: 6781 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6782 **/ 6783static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 6784{ 6785 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6786 6787 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6788 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6789 return IPR_RC_JOB_CONTINUE; 6790 } 6791 6792 return ipr_reset_cmd_failed(ipr_cmd); 6793} 6794 6795/** 6796 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 6797 * @ipr_cmd: ipr command struct 6798 * 6799 * This function send a mode sense to the IOA to retrieve 6800 * the IOA Advanced Function Control mode page. 6801 * 6802 * Return value: 6803 * IPR_RC_JOB_RETURN 6804 **/ 6805static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 6806{ 6807 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6808 6809 ENTER; 6810 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6811 0x24, ioa_cfg->vpd_cbs_dma + 6812 offsetof(struct ipr_misc_cbs, mode_pages), 6813 sizeof(struct ipr_mode_pages)); 6814 6815 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 6816 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 6817 6818 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6819 6820 LEAVE; 6821 return IPR_RC_JOB_RETURN; 6822} 6823 6824/** 6825 * ipr_init_res_table - Initialize the resource table 6826 * @ipr_cmd: ipr command struct 6827 * 6828 * This function looks through the existing resource table, comparing 6829 * it with the config table. This function will take care of old/new 6830 * devices and schedule adding/removing them from the mid-layer 6831 * as appropriate. 6832 * 6833 * Return value: 6834 * IPR_RC_JOB_CONTINUE 6835 **/ 6836static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 6837{ 6838 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6839 struct ipr_resource_entry *res, *temp; 6840 struct ipr_config_table_entry_wrapper cfgtew; 6841 int entries, found, flag, i; 6842 LIST_HEAD(old_res); 6843 6844 ENTER; 6845 if (ioa_cfg->sis64) 6846 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 6847 else 6848 flag = ioa_cfg->u.cfg_table->hdr.flags; 6849 6850 if (flag & IPR_UCODE_DOWNLOAD_REQ) 6851 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 6852 6853 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6854 list_move_tail(&res->queue, &old_res); 6855 6856 if (ioa_cfg->sis64) 6857 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); 6858 else 6859 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 6860 6861 for (i = 0; i < entries; i++) { 6862 if (ioa_cfg->sis64) 6863 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 6864 else 6865 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 6866 found = 0; 6867 6868 list_for_each_entry_safe(res, temp, &old_res, queue) { 6869 if (ipr_is_same_device(res, &cfgtew)) { 6870 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6871 found = 1; 6872 break; 6873 } 6874 } 6875 6876 if (!found) { 6877 if (list_empty(&ioa_cfg->free_res_q)) { 6878 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6879 break; 6880 } 6881 6882 found = 1; 6883 res = list_entry(ioa_cfg->free_res_q.next, 6884 struct ipr_resource_entry, queue); 6885 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6886 ipr_init_res_entry(res, &cfgtew); 6887 res->add_to_ml = 1; 6888 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) 6889 res->sdev->allow_restart = 1; 6890 6891 if (found) 6892 ipr_update_res_entry(res, &cfgtew); 6893 } 6894 6895 list_for_each_entry_safe(res, temp, &old_res, queue) { 6896 if (res->sdev) { 6897 res->del_from_ml = 1; 6898 res->res_handle = IPR_INVALID_RES_HANDLE; 6899 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6900 } 6901 } 6902 6903 list_for_each_entry_safe(res, temp, &old_res, queue) { 6904 ipr_clear_res_target(res); 6905 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6906 } 6907 6908 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6909 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6910 else 6911 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6912 6913 LEAVE; 6914 return IPR_RC_JOB_CONTINUE; 6915} 6916 6917/** 6918 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6919 * @ipr_cmd: ipr command struct 6920 * 6921 * This function sends a Query IOA Configuration command 6922 * to the adapter to retrieve the IOA configuration table. 6923 * 6924 * Return value: 6925 * IPR_RC_JOB_RETURN 6926 **/ 6927static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6928{ 6929 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6930 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6931 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6932 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6933 6934 ENTER; 6935 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6936 ioa_cfg->dual_raid = 1; 6937 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6938 ucode_vpd->major_release, ucode_vpd->card_type, 6939 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6940 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6941 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6942 6943 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6944 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; 6945 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 6946 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 6947 6948 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 6949 IPR_IOADL_FLAGS_READ_LAST); 6950 6951 ipr_cmd->job_step = ipr_init_res_table; 6952 6953 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6954 6955 LEAVE; 6956 return IPR_RC_JOB_RETURN; 6957} 6958 6959/** 6960 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6961 * @ipr_cmd: ipr command struct 6962 * 6963 * This utility function sends an inquiry to the adapter. 6964 * 6965 * Return value: 6966 * none 6967 **/ 6968static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6969 dma_addr_t dma_addr, u8 xfer_len) 6970{ 6971 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6972 6973 ENTER; 6974 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6975 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6976 6977 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6978 ioarcb->cmd_pkt.cdb[1] = flags; 6979 ioarcb->cmd_pkt.cdb[2] = page; 6980 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6981 6982 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6983 6984 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6985 LEAVE; 6986} 6987 6988/** 6989 * ipr_inquiry_page_supported - Is the given inquiry page supported 6990 * @page0: inquiry page 0 buffer 6991 * @page: page code. 6992 * 6993 * This function determines if the specified inquiry page is supported. 6994 * 6995 * Return value: 6996 * 1 if page is supported / 0 if not 6997 **/ 6998static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 6999{ 7000 int i; 7001 7002 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 7003 if (page0->page[i] == page) 7004 return 1; 7005 7006 return 0; 7007} 7008 7009/** 7010 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 7011 * @ipr_cmd: ipr command struct 7012 * 7013 * This function sends a Page 0xD0 inquiry to the adapter 7014 * to retrieve adapter capabilities. 7015 * 7016 * Return value: 7017 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7018 **/ 7019static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 7020{ 7021 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7022 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 7023 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 7024 7025 ENTER; 7026 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 7027 memset(cap, 0, sizeof(*cap)); 7028 7029 if (ipr_inquiry_page_supported(page0, 0xD0)) { 7030 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 7031 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 7032 sizeof(struct ipr_inquiry_cap)); 7033 return IPR_RC_JOB_RETURN; 7034 } 7035 7036 LEAVE; 7037 return IPR_RC_JOB_CONTINUE; 7038} 7039 7040/** 7041 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 7042 * @ipr_cmd: ipr command struct 7043 * 7044 * This function sends a Page 3 inquiry to the adapter 7045 * to retrieve software VPD information. 7046 * 7047 * Return value: 7048 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7049 **/ 7050static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 7051{ 7052 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7053 7054 ENTER; 7055 7056 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 7057 7058 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 7059 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 7060 sizeof(struct ipr_inquiry_page3)); 7061 7062 LEAVE; 7063 return IPR_RC_JOB_RETURN; 7064} 7065 7066/** 7067 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 7068 * @ipr_cmd: ipr command struct 7069 * 7070 * This function sends a Page 0 inquiry to the adapter 7071 * to retrieve supported inquiry pages. 7072 * 7073 * Return value: 7074 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7075 **/ 7076static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 7077{ 7078 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7079 char type[5]; 7080 7081 ENTER; 7082 7083 /* Grab the type out of the VPD and store it away */ 7084 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 7085 type[4] = '\0'; 7086 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 7087 7088 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 7089 7090 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 7091 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 7092 sizeof(struct ipr_inquiry_page0)); 7093 7094 LEAVE; 7095 return IPR_RC_JOB_RETURN; 7096} 7097 7098/** 7099 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 7100 * @ipr_cmd: ipr command struct 7101 * 7102 * This function sends a standard inquiry to the adapter. 7103 * 7104 * Return value: 7105 * IPR_RC_JOB_RETURN 7106 **/ 7107static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 7108{ 7109 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7110 7111 ENTER; 7112 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 7113 7114 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 7115 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 7116 sizeof(struct ipr_ioa_vpd)); 7117 7118 LEAVE; 7119 return IPR_RC_JOB_RETURN; 7120} 7121 7122/** 7123 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 7124 * @ipr_cmd: ipr command struct 7125 * 7126 * This function send an Identify Host Request Response Queue 7127 * command to establish the HRRQ with the adapter. 7128 * 7129 * Return value: 7130 * IPR_RC_JOB_RETURN 7131 **/ 7132static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 7133{ 7134 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7135 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7136 7137 ENTER; 7138 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 7139 7140 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 7141 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7142 7143 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7144 if (ioa_cfg->sis64) 7145 ioarcb->cmd_pkt.cdb[1] = 0x1; 7146 ioarcb->cmd_pkt.cdb[2] = 7147 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; 7148 ioarcb->cmd_pkt.cdb[3] = 7149 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; 7150 ioarcb->cmd_pkt.cdb[4] = 7151 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; 7152 ioarcb->cmd_pkt.cdb[5] = 7153 ((u64) ioa_cfg->host_rrq_dma) & 0xff; 7154 ioarcb->cmd_pkt.cdb[7] = 7155 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 7156 ioarcb->cmd_pkt.cdb[8] = 7157 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 7158 7159 if (ioa_cfg->sis64) { 7160 ioarcb->cmd_pkt.cdb[10] = 7161 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; 7162 ioarcb->cmd_pkt.cdb[11] = 7163 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; 7164 ioarcb->cmd_pkt.cdb[12] = 7165 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; 7166 ioarcb->cmd_pkt.cdb[13] = 7167 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; 7168 } 7169 7170 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 7171 7172 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7173 7174 LEAVE; 7175 return IPR_RC_JOB_RETURN; 7176} 7177 7178/** 7179 * ipr_reset_timer_done - Adapter reset timer function 7180 * @ipr_cmd: ipr command struct 7181 * 7182 * Description: This function is used in adapter reset processing 7183 * for timing events. If the reset_cmd pointer in the IOA 7184 * config struct is not this adapter's we are doing nested 7185 * resets and fail_all_ops will take care of freeing the 7186 * command block. 7187 * 7188 * Return value: 7189 * none 7190 **/ 7191static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 7192{ 7193 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7194 unsigned long lock_flags = 0; 7195 7196 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7197 7198 if (ioa_cfg->reset_cmd == ipr_cmd) { 7199 list_del(&ipr_cmd->queue); 7200 ipr_cmd->done(ipr_cmd); 7201 } 7202 7203 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7204} 7205 7206/** 7207 * ipr_reset_start_timer - Start a timer for adapter reset job 7208 * @ipr_cmd: ipr command struct 7209 * @timeout: timeout value 7210 * 7211 * Description: This function is used in adapter reset processing 7212 * for timing events. If the reset_cmd pointer in the IOA 7213 * config struct is not this adapter's we are doing nested 7214 * resets and fail_all_ops will take care of freeing the 7215 * command block. 7216 * 7217 * Return value: 7218 * none 7219 **/ 7220static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 7221 unsigned long timeout) 7222{ 7223 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7224 ipr_cmd->done = ipr_reset_ioa_job; 7225 7226 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7227 ipr_cmd->timer.expires = jiffies + timeout; 7228 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 7229 add_timer(&ipr_cmd->timer); 7230} 7231 7232/** 7233 * ipr_init_ioa_mem - Initialize ioa_cfg control block 7234 * @ioa_cfg: ioa cfg struct 7235 * 7236 * Return value: 7237 * nothing 7238 **/ 7239static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 7240{ 7241 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 7242 7243 /* Initialize Host RRQ pointers */ 7244 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 7245 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 7246 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 7247 ioa_cfg->toggle_bit = 1; 7248 7249 /* Zero out config table */ 7250 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 7251} 7252 7253/** 7254 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 7255 * @ipr_cmd: ipr command struct 7256 * 7257 * Return value: 7258 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7259 **/ 7260static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 7261{ 7262 unsigned long stage, stage_time; 7263 u32 feedback; 7264 volatile u32 int_reg; 7265 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7266 u64 maskval = 0; 7267 7268 feedback = readl(ioa_cfg->regs.init_feedback_reg); 7269 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 7270 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 7271 7272 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 7273 7274 /* sanity check the stage_time value */ 7275 if (stage_time == 0) 7276 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; 7277 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 7278 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 7279 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 7280 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 7281 7282 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 7283 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 7284 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7285 stage_time = ioa_cfg->transop_timeout; 7286 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7287 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 7288 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 7289 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7290 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7291 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7292 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 7293 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 7294 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7295 return IPR_RC_JOB_CONTINUE; 7296 } 7297 } 7298 7299 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7300 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 7301 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7302 ipr_cmd->done = ipr_reset_ioa_job; 7303 add_timer(&ipr_cmd->timer); 7304 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7305 7306 return IPR_RC_JOB_RETURN; 7307} 7308 7309/** 7310 * ipr_reset_enable_ioa - Enable the IOA following a reset. 7311 * @ipr_cmd: ipr command struct 7312 * 7313 * This function reinitializes some control blocks and 7314 * enables destructive diagnostics on the adapter. 7315 * 7316 * Return value: 7317 * IPR_RC_JOB_RETURN 7318 **/ 7319static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 7320{ 7321 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7322 volatile u32 int_reg; 7323 volatile u64 maskval; 7324 7325 ENTER; 7326 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7327 ipr_init_ioa_mem(ioa_cfg); 7328 7329 ioa_cfg->allow_interrupts = 1; 7330 if (ioa_cfg->sis64) { 7331 /* Set the adapter to the correct endian mode. */ 7332 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 7333 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 7334 } 7335 7336 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 7337 7338 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7339 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 7340 ioa_cfg->regs.clr_interrupt_mask_reg32); 7341 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7342 return IPR_RC_JOB_CONTINUE; 7343 } 7344 7345 /* Enable destructive diagnostics on IOA */ 7346 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 7347 7348 if (ioa_cfg->sis64) { 7349 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7350 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; 7351 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); 7352 } else 7353 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 7354 7355 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7356 7357 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 7358 7359 if (ioa_cfg->sis64) { 7360 ipr_cmd->job_step = ipr_reset_next_stage; 7361 return IPR_RC_JOB_CONTINUE; 7362 } 7363 7364 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7365 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 7366 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7367 ipr_cmd->done = ipr_reset_ioa_job; 7368 add_timer(&ipr_cmd->timer); 7369 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7370 7371 LEAVE; 7372 return IPR_RC_JOB_RETURN; 7373} 7374 7375/** 7376 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 7377 * @ipr_cmd: ipr command struct 7378 * 7379 * This function is invoked when an adapter dump has run out 7380 * of processing time. 7381 * 7382 * Return value: 7383 * IPR_RC_JOB_CONTINUE 7384 **/ 7385static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 7386{ 7387 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7388 7389 if (ioa_cfg->sdt_state == GET_DUMP) 7390 ioa_cfg->sdt_state = ABORT_DUMP; 7391 7392 ipr_cmd->job_step = ipr_reset_alert; 7393 7394 return IPR_RC_JOB_CONTINUE; 7395} 7396 7397/** 7398 * ipr_unit_check_no_data - Log a unit check/no data error log 7399 * @ioa_cfg: ioa config struct 7400 * 7401 * Logs an error indicating the adapter unit checked, but for some 7402 * reason, we were unable to fetch the unit check buffer. 7403 * 7404 * Return value: 7405 * nothing 7406 **/ 7407static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 7408{ 7409 ioa_cfg->errors_logged++; 7410 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 7411} 7412 7413/** 7414 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 7415 * @ioa_cfg: ioa config struct 7416 * 7417 * Fetches the unit check buffer from the adapter by clocking the data 7418 * through the mailbox register. 7419 * 7420 * Return value: 7421 * nothing 7422 **/ 7423static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 7424{ 7425 unsigned long mailbox; 7426 struct ipr_hostrcb *hostrcb; 7427 struct ipr_uc_sdt sdt; 7428 int rc, length; 7429 u32 ioasc; 7430 7431 mailbox = readl(ioa_cfg->ioa_mailbox); 7432 7433 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 7434 ipr_unit_check_no_data(ioa_cfg); 7435 return; 7436 } 7437 7438 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 7439 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 7440 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 7441 7442 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 7443 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 7444 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 7445 ipr_unit_check_no_data(ioa_cfg); 7446 return; 7447 } 7448 7449 /* Find length of the first sdt entry (UC buffer) */ 7450 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 7451 length = be32_to_cpu(sdt.entry[0].end_token); 7452 else 7453 length = (be32_to_cpu(sdt.entry[0].end_token) - 7454 be32_to_cpu(sdt.entry[0].start_token)) & 7455 IPR_FMT2_MBX_ADDR_MASK; 7456 7457 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 7458 struct ipr_hostrcb, queue); 7459 list_del(&hostrcb->queue); 7460 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 7461 7462 rc = ipr_get_ldump_data_section(ioa_cfg, 7463 be32_to_cpu(sdt.entry[0].start_token), 7464 (__be32 *)&hostrcb->hcam, 7465 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 7466 7467 if (!rc) { 7468 ipr_handle_log_data(ioa_cfg, hostrcb); 7469 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 7470 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 7471 ioa_cfg->sdt_state == GET_DUMP) 7472 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7473 } else 7474 ipr_unit_check_no_data(ioa_cfg); 7475 7476 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 7477} 7478 7479/** 7480 * ipr_reset_get_unit_check_job - Call to get the unit check buffer. 7481 * @ipr_cmd: ipr command struct 7482 * 7483 * Description: This function will call to get the unit check buffer. 7484 * 7485 * Return value: 7486 * IPR_RC_JOB_RETURN 7487 **/ 7488static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) 7489{ 7490 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7491 7492 ENTER; 7493 ioa_cfg->ioa_unit_checked = 0; 7494 ipr_get_unit_check_buffer(ioa_cfg); 7495 ipr_cmd->job_step = ipr_reset_alert; 7496 ipr_reset_start_timer(ipr_cmd, 0); 7497 7498 LEAVE; 7499 return IPR_RC_JOB_RETURN; 7500} 7501 7502/** 7503 * ipr_reset_restore_cfg_space - Restore PCI config space. 7504 * @ipr_cmd: ipr command struct 7505 * 7506 * Description: This function restores the saved PCI config space of 7507 * the adapter, fails all outstanding ops back to the callers, and 7508 * fetches the dump/unit check if applicable to this reset. 7509 * 7510 * Return value: 7511 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7512 **/ 7513static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 7514{ 7515 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7516 volatile u32 int_reg; 7517 7518 ENTER; 7519 ioa_cfg->pdev->state_saved = true; 7520 pci_restore_state(ioa_cfg->pdev); 7521 7522 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 7523 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7524 return IPR_RC_JOB_CONTINUE; 7525 } 7526 7527 ipr_fail_all_ops(ioa_cfg); 7528 7529 if (ioa_cfg->sis64) { 7530 /* Set the adapter to the correct endian mode. */ 7531 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 7532 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 7533 } 7534 7535 if (ioa_cfg->ioa_unit_checked) { 7536 if (ioa_cfg->sis64) { 7537 ipr_cmd->job_step = ipr_reset_get_unit_check_job; 7538 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); 7539 return IPR_RC_JOB_RETURN; 7540 } else { 7541 ioa_cfg->ioa_unit_checked = 0; 7542 ipr_get_unit_check_buffer(ioa_cfg); 7543 ipr_cmd->job_step = ipr_reset_alert; 7544 ipr_reset_start_timer(ipr_cmd, 0); 7545 return IPR_RC_JOB_RETURN; 7546 } 7547 } 7548 7549 if (ioa_cfg->in_ioa_bringdown) { 7550 ipr_cmd->job_step = ipr_ioa_bringdown_done; 7551 } else { 7552 ipr_cmd->job_step = ipr_reset_enable_ioa; 7553 7554 if (GET_DUMP == ioa_cfg->sdt_state) { 7555 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 7556 ipr_cmd->job_step = ipr_reset_wait_for_dump; 7557 schedule_work(&ioa_cfg->work_q); 7558 return IPR_RC_JOB_RETURN; 7559 } 7560 } 7561 7562 LEAVE; 7563 return IPR_RC_JOB_CONTINUE; 7564} 7565 7566/** 7567 * ipr_reset_bist_done - BIST has completed on the adapter. 7568 * @ipr_cmd: ipr command struct 7569 * 7570 * Description: Unblock config space and resume the reset process. 7571 * 7572 * Return value: 7573 * IPR_RC_JOB_CONTINUE 7574 **/ 7575static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 7576{ 7577 ENTER; 7578 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7579 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 7580 LEAVE; 7581 return IPR_RC_JOB_CONTINUE; 7582} 7583 7584/** 7585 * ipr_reset_start_bist - Run BIST on the adapter. 7586 * @ipr_cmd: ipr command struct 7587 * 7588 * Description: This function runs BIST on the adapter, then delays 2 seconds. 7589 * 7590 * Return value: 7591 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7592 **/ 7593static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 7594{ 7595 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7596 int rc = PCIBIOS_SUCCESSFUL; 7597 7598 ENTER; 7599 pci_block_user_cfg_access(ioa_cfg->pdev); 7600 7601 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) 7602 writel(IPR_UPROCI_SIS64_START_BIST, 7603 ioa_cfg->regs.set_uproc_interrupt_reg32); 7604 else 7605 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 7606 7607 if (rc == PCIBIOS_SUCCESSFUL) { 7608 ipr_cmd->job_step = ipr_reset_bist_done; 7609 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7610 rc = IPR_RC_JOB_RETURN; 7611 } else { 7612 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7613 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7614 rc = IPR_RC_JOB_CONTINUE; 7615 } 7616 7617 LEAVE; 7618 return rc; 7619} 7620 7621/** 7622 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 7623 * @ipr_cmd: ipr command struct 7624 * 7625 * Description: This clears PCI reset to the adapter and delays two seconds. 7626 * 7627 * Return value: 7628 * IPR_RC_JOB_RETURN 7629 **/ 7630static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 7631{ 7632 ENTER; 7633 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 7634 ipr_cmd->job_step = ipr_reset_bist_done; 7635 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7636 LEAVE; 7637 return IPR_RC_JOB_RETURN; 7638} 7639 7640/** 7641 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 7642 * @ipr_cmd: ipr command struct 7643 * 7644 * Description: This asserts PCI reset to the adapter. 7645 * 7646 * Return value: 7647 * IPR_RC_JOB_RETURN 7648 **/ 7649static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 7650{ 7651 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7652 struct pci_dev *pdev = ioa_cfg->pdev; 7653 7654 ENTER; 7655 pci_block_user_cfg_access(pdev); 7656 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 7657 ipr_cmd->job_step = ipr_reset_slot_reset_done; 7658 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 7659 LEAVE; 7660 return IPR_RC_JOB_RETURN; 7661} 7662 7663/** 7664 * ipr_reset_allowed - Query whether or not IOA can be reset 7665 * @ioa_cfg: ioa config struct 7666 * 7667 * Return value: 7668 * 0 if reset not allowed / non-zero if reset is allowed 7669 **/ 7670static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 7671{ 7672 volatile u32 temp_reg; 7673 7674 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7675 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 7676} 7677 7678/** 7679 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 7680 * @ipr_cmd: ipr command struct 7681 * 7682 * Description: This function waits for adapter permission to run BIST, 7683 * then runs BIST. If the adapter does not give permission after a 7684 * reasonable time, we will reset the adapter anyway. The impact of 7685 * resetting the adapter without warning the adapter is the risk of 7686 * losing the persistent error log on the adapter. If the adapter is 7687 * reset while it is writing to the flash on the adapter, the flash 7688 * segment will have bad ECC and be zeroed. 7689 * 7690 * Return value: 7691 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7692 **/ 7693static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 7694{ 7695 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7696 int rc = IPR_RC_JOB_RETURN; 7697 7698 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 7699 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7700 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7701 } else { 7702 ipr_cmd->job_step = ioa_cfg->reset; 7703 rc = IPR_RC_JOB_CONTINUE; 7704 } 7705 7706 return rc; 7707} 7708 7709/** 7710 * ipr_reset_alert - Alert the adapter of a pending reset 7711 * @ipr_cmd: ipr command struct 7712 * 7713 * Description: This function alerts the adapter that it will be reset. 7714 * If memory space is not currently enabled, proceed directly 7715 * to running BIST on the adapter. The timer must always be started 7716 * so we guarantee we do not run BIST from ipr_isr. 7717 * 7718 * Return value: 7719 * IPR_RC_JOB_RETURN 7720 **/ 7721static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 7722{ 7723 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7724 u16 cmd_reg; 7725 int rc; 7726 7727 ENTER; 7728 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 7729 7730 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 7731 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 7732 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 7733 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 7734 } else { 7735 ipr_cmd->job_step = ioa_cfg->reset; 7736 } 7737 7738 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7739 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7740 7741 LEAVE; 7742 return IPR_RC_JOB_RETURN; 7743} 7744 7745/** 7746 * ipr_reset_ucode_download_done - Microcode download completion 7747 * @ipr_cmd: ipr command struct 7748 * 7749 * Description: This function unmaps the microcode download buffer. 7750 * 7751 * Return value: 7752 * IPR_RC_JOB_CONTINUE 7753 **/ 7754static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 7755{ 7756 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7757 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7758 7759 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 7760 sglist->num_sg, DMA_TO_DEVICE); 7761 7762 ipr_cmd->job_step = ipr_reset_alert; 7763 return IPR_RC_JOB_CONTINUE; 7764} 7765 7766/** 7767 * ipr_reset_ucode_download - Download microcode to the adapter 7768 * @ipr_cmd: ipr command struct 7769 * 7770 * Description: This function checks to see if it there is microcode 7771 * to download to the adapter. If there is, a download is performed. 7772 * 7773 * Return value: 7774 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7775 **/ 7776static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 7777{ 7778 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7779 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7780 7781 ENTER; 7782 ipr_cmd->job_step = ipr_reset_alert; 7783 7784 if (!sglist) 7785 return IPR_RC_JOB_CONTINUE; 7786 7787 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7788 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7789 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 7790 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 7791 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 7792 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 7793 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 7794 7795 if (ioa_cfg->sis64) 7796 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 7797 else 7798 ipr_build_ucode_ioadl(ipr_cmd, sglist); 7799 ipr_cmd->job_step = ipr_reset_ucode_download_done; 7800 7801 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7802 IPR_WRITE_BUFFER_TIMEOUT); 7803 7804 LEAVE; 7805 return IPR_RC_JOB_RETURN; 7806} 7807 7808/** 7809 * ipr_reset_shutdown_ioa - Shutdown the adapter 7810 * @ipr_cmd: ipr command struct 7811 * 7812 * Description: This function issues an adapter shutdown of the 7813 * specified type to the specified adapter as part of the 7814 * adapter reset job. 7815 * 7816 * Return value: 7817 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7818 **/ 7819static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 7820{ 7821 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7822 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 7823 unsigned long timeout; 7824 int rc = IPR_RC_JOB_CONTINUE; 7825 7826 ENTER; 7827 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 7828 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7829 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7830 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 7831 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 7832 7833 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 7834 timeout = IPR_SHUTDOWN_TIMEOUT; 7835 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 7836 timeout = IPR_INTERNAL_TIMEOUT; 7837 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7838 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 7839 else 7840 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 7841 7842 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 7843 7844 rc = IPR_RC_JOB_RETURN; 7845 ipr_cmd->job_step = ipr_reset_ucode_download; 7846 } else 7847 ipr_cmd->job_step = ipr_reset_alert; 7848 7849 LEAVE; 7850 return rc; 7851} 7852 7853/** 7854 * ipr_reset_ioa_job - Adapter reset job 7855 * @ipr_cmd: ipr command struct 7856 * 7857 * Description: This function is the job router for the adapter reset job. 7858 * 7859 * Return value: 7860 * none 7861 **/ 7862static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 7863{ 7864 u32 rc, ioasc; 7865 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7866 7867 do { 7868 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7869 7870 if (ioa_cfg->reset_cmd != ipr_cmd) { 7871 /* 7872 * We are doing nested adapter resets and this is 7873 * not the current reset job. 7874 */ 7875 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7876 return; 7877 } 7878 7879 if (IPR_IOASC_SENSE_KEY(ioasc)) { 7880 rc = ipr_cmd->job_step_failed(ipr_cmd); 7881 if (rc == IPR_RC_JOB_RETURN) 7882 return; 7883 } 7884 7885 ipr_reinit_ipr_cmnd(ipr_cmd); 7886 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 7887 rc = ipr_cmd->job_step(ipr_cmd); 7888 } while(rc == IPR_RC_JOB_CONTINUE); 7889} 7890 7891/** 7892 * _ipr_initiate_ioa_reset - Initiate an adapter reset 7893 * @ioa_cfg: ioa config struct 7894 * @job_step: first job step of reset job 7895 * @shutdown_type: shutdown type 7896 * 7897 * Description: This function will initiate the reset of the given adapter 7898 * starting at the selected job step. 7899 * If the caller needs to wait on the completion of the reset, 7900 * the caller must sleep on the reset_wait_q. 7901 * 7902 * Return value: 7903 * none 7904 **/ 7905static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7906 int (*job_step) (struct ipr_cmnd *), 7907 enum ipr_shutdown_type shutdown_type) 7908{ 7909 struct ipr_cmnd *ipr_cmd; 7910 7911 ioa_cfg->in_reset_reload = 1; 7912 ioa_cfg->allow_cmds = 0; 7913 scsi_block_requests(ioa_cfg->host); 7914 7915 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 7916 ioa_cfg->reset_cmd = ipr_cmd; 7917 ipr_cmd->job_step = job_step; 7918 ipr_cmd->u.shutdown_type = shutdown_type; 7919 7920 ipr_reset_ioa_job(ipr_cmd); 7921} 7922 7923/** 7924 * ipr_initiate_ioa_reset - Initiate an adapter reset 7925 * @ioa_cfg: ioa config struct 7926 * @shutdown_type: shutdown type 7927 * 7928 * Description: This function will initiate the reset of the given adapter. 7929 * If the caller needs to wait on the completion of the reset, 7930 * the caller must sleep on the reset_wait_q. 7931 * 7932 * Return value: 7933 * none 7934 **/ 7935static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7936 enum ipr_shutdown_type shutdown_type) 7937{ 7938 if (ioa_cfg->ioa_is_dead) 7939 return; 7940 7941 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 7942 ioa_cfg->sdt_state = ABORT_DUMP; 7943 7944 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 7945 dev_err(&ioa_cfg->pdev->dev, 7946 "IOA taken offline - error recovery failed\n"); 7947 7948 ioa_cfg->reset_retries = 0; 7949 ioa_cfg->ioa_is_dead = 1; 7950 7951 if (ioa_cfg->in_ioa_bringdown) { 7952 ioa_cfg->reset_cmd = NULL; 7953 ioa_cfg->in_reset_reload = 0; 7954 ipr_fail_all_ops(ioa_cfg); 7955 wake_up_all(&ioa_cfg->reset_wait_q); 7956 7957 spin_unlock_irq(ioa_cfg->host->host_lock); 7958 scsi_unblock_requests(ioa_cfg->host); 7959 spin_lock_irq(ioa_cfg->host->host_lock); 7960 return; 7961 } else { 7962 ioa_cfg->in_ioa_bringdown = 1; 7963 shutdown_type = IPR_SHUTDOWN_NONE; 7964 } 7965 } 7966 7967 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 7968 shutdown_type); 7969} 7970 7971/** 7972 * ipr_reset_freeze - Hold off all I/O activity 7973 * @ipr_cmd: ipr command struct 7974 * 7975 * Description: If the PCI slot is frozen, hold off all I/O 7976 * activity; then, as soon as the slot is available again, 7977 * initiate an adapter reset. 7978 */ 7979static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 7980{ 7981 /* Disallow new interrupts, avoid loop */ 7982 ipr_cmd->ioa_cfg->allow_interrupts = 0; 7983 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7984 ipr_cmd->done = ipr_reset_ioa_job; 7985 return IPR_RC_JOB_RETURN; 7986} 7987 7988/** 7989 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 7990 * @pdev: PCI device struct 7991 * 7992 * Description: This routine is called to tell us that the PCI bus 7993 * is down. Can't do anything here, except put the device driver 7994 * into a holding pattern, waiting for the PCI bus to come back. 7995 */ 7996static void ipr_pci_frozen(struct pci_dev *pdev) 7997{ 7998 unsigned long flags = 0; 7999 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8000 8001 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8002 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 8003 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8004} 8005 8006/** 8007 * ipr_pci_slot_reset - Called when PCI slot has been reset. 8008 * @pdev: PCI device struct 8009 * 8010 * Description: This routine is called by the pci error recovery 8011 * code after the PCI slot has been reset, just before we 8012 * should resume normal operations. 8013 */ 8014static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 8015{ 8016 unsigned long flags = 0; 8017 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8018 8019 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8020 if (ioa_cfg->needs_warm_reset) 8021 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8022 else 8023 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 8024 IPR_SHUTDOWN_NONE); 8025 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8026 return PCI_ERS_RESULT_RECOVERED; 8027} 8028 8029/** 8030 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 8031 * @pdev: PCI device struct 8032 * 8033 * Description: This routine is called when the PCI bus has 8034 * permanently failed. 8035 */ 8036static void ipr_pci_perm_failure(struct pci_dev *pdev) 8037{ 8038 unsigned long flags = 0; 8039 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8040 8041 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8042 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8043 ioa_cfg->sdt_state = ABORT_DUMP; 8044 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 8045 ioa_cfg->in_ioa_bringdown = 1; 8046 ioa_cfg->allow_cmds = 0; 8047 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8048 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8049} 8050 8051/** 8052 * ipr_pci_error_detected - Called when a PCI error is detected. 8053 * @pdev: PCI device struct 8054 * @state: PCI channel state 8055 * 8056 * Description: Called when a PCI error is detected. 8057 * 8058 * Return value: 8059 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 8060 */ 8061static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 8062 pci_channel_state_t state) 8063{ 8064 switch (state) { 8065 case pci_channel_io_frozen: 8066 ipr_pci_frozen(pdev); 8067 return PCI_ERS_RESULT_NEED_RESET; 8068 case pci_channel_io_perm_failure: 8069 ipr_pci_perm_failure(pdev); 8070 return PCI_ERS_RESULT_DISCONNECT; 8071 break; 8072 default: 8073 break; 8074 } 8075 return PCI_ERS_RESULT_NEED_RESET; 8076} 8077 8078/** 8079 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 8080 * @ioa_cfg: ioa cfg struct 8081 * 8082 * Description: This is the second phase of adapter intialization 8083 * This function takes care of initilizing the adapter to the point 8084 * where it can accept new commands. 8085 8086 * Return value: 8087 * 0 on success / -EIO on failure 8088 **/ 8089static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 8090{ 8091 int rc = 0; 8092 unsigned long host_lock_flags = 0; 8093 8094 ENTER; 8095 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8096 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 8097 if (ioa_cfg->needs_hard_reset) { 8098 ioa_cfg->needs_hard_reset = 0; 8099 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8100 } else 8101 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 8102 IPR_SHUTDOWN_NONE); 8103 8104 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8105 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8106 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8107 8108 if (ioa_cfg->ioa_is_dead) { 8109 rc = -EIO; 8110 } else if (ipr_invalid_adapter(ioa_cfg)) { 8111 if (!ipr_testmode) 8112 rc = -EIO; 8113 8114 dev_err(&ioa_cfg->pdev->dev, 8115 "Adapter not supported in this hardware configuration.\n"); 8116 } 8117 8118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8119 8120 LEAVE; 8121 return rc; 8122} 8123 8124/** 8125 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 8126 * @ioa_cfg: ioa config struct 8127 * 8128 * Return value: 8129 * none 8130 **/ 8131static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8132{ 8133 int i; 8134 8135 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8136 if (ioa_cfg->ipr_cmnd_list[i]) 8137 pci_pool_free(ioa_cfg->ipr_cmd_pool, 8138 ioa_cfg->ipr_cmnd_list[i], 8139 ioa_cfg->ipr_cmnd_list_dma[i]); 8140 8141 ioa_cfg->ipr_cmnd_list[i] = NULL; 8142 } 8143 8144 if (ioa_cfg->ipr_cmd_pool) 8145 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 8146 8147 ioa_cfg->ipr_cmd_pool = NULL; 8148} 8149 8150/** 8151 * ipr_free_mem - Frees memory allocated for an adapter 8152 * @ioa_cfg: ioa cfg struct 8153 * 8154 * Return value: 8155 * nothing 8156 **/ 8157static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 8158{ 8159 int i; 8160 8161 kfree(ioa_cfg->res_entries); 8162 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 8163 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8164 ipr_free_cmd_blks(ioa_cfg); 8165 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8166 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8167 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, 8168 ioa_cfg->u.cfg_table, 8169 ioa_cfg->cfg_table_dma); 8170 8171 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8172 pci_free_consistent(ioa_cfg->pdev, 8173 sizeof(struct ipr_hostrcb), 8174 ioa_cfg->hostrcb[i], 8175 ioa_cfg->hostrcb_dma[i]); 8176 } 8177 8178 ipr_free_dump(ioa_cfg); 8179 kfree(ioa_cfg->trace); 8180} 8181 8182/** 8183 * ipr_free_all_resources - Free all allocated resources for an adapter. 8184 * @ipr_cmd: ipr command struct 8185 * 8186 * This function frees all allocated resources for the 8187 * specified adapter. 8188 * 8189 * Return value: 8190 * none 8191 **/ 8192static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 8193{ 8194 struct pci_dev *pdev = ioa_cfg->pdev; 8195 8196 ENTER; 8197 free_irq(pdev->irq, ioa_cfg); 8198 pci_disable_msi(pdev); 8199 iounmap(ioa_cfg->hdw_dma_regs); 8200 pci_release_regions(pdev); 8201 ipr_free_mem(ioa_cfg); 8202 scsi_host_put(ioa_cfg->host); 8203 pci_disable_device(pdev); 8204 LEAVE; 8205} 8206 8207/** 8208 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 8209 * @ioa_cfg: ioa config struct 8210 * 8211 * Return value: 8212 * 0 on success / -ENOMEM on allocation failure 8213 **/ 8214static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8215{ 8216 struct ipr_cmnd *ipr_cmd; 8217 struct ipr_ioarcb *ioarcb; 8218 dma_addr_t dma_addr; 8219 int i; 8220 8221 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 8222 sizeof(struct ipr_cmnd), 16, 0); 8223 8224 if (!ioa_cfg->ipr_cmd_pool) 8225 return -ENOMEM; 8226 8227 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8228 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 8229 8230 if (!ipr_cmd) { 8231 ipr_free_cmd_blks(ioa_cfg); 8232 return -ENOMEM; 8233 } 8234 8235 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 8236 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 8237 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 8238 8239 ioarcb = &ipr_cmd->ioarcb; 8240 ipr_cmd->dma_addr = dma_addr; 8241 if (ioa_cfg->sis64) 8242 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 8243 else 8244 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 8245 8246 ioarcb->host_response_handle = cpu_to_be32(i << 2); 8247 if (ioa_cfg->sis64) { 8248 ioarcb->u.sis64_addr_data.data_ioadl_addr = 8249 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 8250 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 8251 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); 8252 } else { 8253 ioarcb->write_ioadl_addr = 8254 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 8255 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 8256 ioarcb->ioasa_host_pci_addr = 8257 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); 8258 } 8259 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 8260 ipr_cmd->cmd_index = i; 8261 ipr_cmd->ioa_cfg = ioa_cfg; 8262 ipr_cmd->sense_buffer_dma = dma_addr + 8263 offsetof(struct ipr_cmnd, sense_buffer); 8264 8265 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8266 } 8267 8268 return 0; 8269} 8270 8271/** 8272 * ipr_alloc_mem - Allocate memory for an adapter 8273 * @ioa_cfg: ioa config struct 8274 * 8275 * Return value: 8276 * 0 on success / non-zero for error 8277 **/ 8278static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 8279{ 8280 struct pci_dev *pdev = ioa_cfg->pdev; 8281 int i, rc = -ENOMEM; 8282 8283 ENTER; 8284 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 8285 ioa_cfg->max_devs_supported, GFP_KERNEL); 8286 8287 if (!ioa_cfg->res_entries) 8288 goto out; 8289 8290 if (ioa_cfg->sis64) { 8291 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * 8292 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8293 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * 8294 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8295 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * 8296 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8297 } 8298 8299 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8300 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8301 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8302 } 8303 8304 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 8305 sizeof(struct ipr_misc_cbs), 8306 &ioa_cfg->vpd_cbs_dma); 8307 8308 if (!ioa_cfg->vpd_cbs) 8309 goto out_free_res_entries; 8310 8311 if (ipr_alloc_cmd_blks(ioa_cfg)) 8312 goto out_free_vpd_cbs; 8313 8314 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 8315 sizeof(u32) * IPR_NUM_CMD_BLKS, 8316 &ioa_cfg->host_rrq_dma); 8317 8318 if (!ioa_cfg->host_rrq) 8319 goto out_ipr_free_cmd_blocks; 8320 8321 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 8322 ioa_cfg->cfg_table_size, 8323 &ioa_cfg->cfg_table_dma); 8324 8325 if (!ioa_cfg->u.cfg_table) 8326 goto out_free_host_rrq; 8327 8328 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8329 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 8330 sizeof(struct ipr_hostrcb), 8331 &ioa_cfg->hostrcb_dma[i]); 8332 8333 if (!ioa_cfg->hostrcb[i]) 8334 goto out_free_hostrcb_dma; 8335 8336 ioa_cfg->hostrcb[i]->hostrcb_dma = 8337 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 8338 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 8339 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 8340 } 8341 8342 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 8343 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 8344 8345 if (!ioa_cfg->trace) 8346 goto out_free_hostrcb_dma; 8347 8348 rc = 0; 8349out: 8350 LEAVE; 8351 return rc; 8352 8353out_free_hostrcb_dma: 8354 while (i-- > 0) { 8355 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 8356 ioa_cfg->hostrcb[i], 8357 ioa_cfg->hostrcb_dma[i]); 8358 } 8359 pci_free_consistent(pdev, ioa_cfg->cfg_table_size, 8360 ioa_cfg->u.cfg_table, 8361 ioa_cfg->cfg_table_dma); 8362out_free_host_rrq: 8363 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8364 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8365out_ipr_free_cmd_blocks: 8366 ipr_free_cmd_blks(ioa_cfg); 8367out_free_vpd_cbs: 8368 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 8369 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8370out_free_res_entries: 8371 kfree(ioa_cfg->res_entries); 8372 goto out; 8373} 8374 8375/** 8376 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 8377 * @ioa_cfg: ioa config struct 8378 * 8379 * Return value: 8380 * none 8381 **/ 8382static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 8383{ 8384 int i; 8385 8386 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 8387 ioa_cfg->bus_attr[i].bus = i; 8388 ioa_cfg->bus_attr[i].qas_enabled = 0; 8389 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 8390 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 8391 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 8392 else 8393 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 8394 } 8395} 8396 8397/** 8398 * ipr_init_ioa_cfg - Initialize IOA config struct 8399 * @ioa_cfg: ioa config struct 8400 * @host: scsi host struct 8401 * @pdev: PCI dev struct 8402 * 8403 * Return value: 8404 * none 8405 **/ 8406static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 8407 struct Scsi_Host *host, struct pci_dev *pdev) 8408{ 8409 const struct ipr_interrupt_offsets *p; 8410 struct ipr_interrupts *t; 8411 void __iomem *base; 8412 8413 ioa_cfg->host = host; 8414 ioa_cfg->pdev = pdev; 8415 ioa_cfg->log_level = ipr_log_level; 8416 ioa_cfg->doorbell = IPR_DOORBELL; 8417 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 8418 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 8419 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 8420 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 8421 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 8422 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 8423 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 8424 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 8425 8426 INIT_LIST_HEAD(&ioa_cfg->free_q); 8427 INIT_LIST_HEAD(&ioa_cfg->pending_q); 8428 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 8429 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 8430 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 8431 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 8432 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 8433 init_waitqueue_head(&ioa_cfg->reset_wait_q); 8434 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8435 ioa_cfg->sdt_state = INACTIVE; 8436 8437 ipr_initialize_bus_attr(ioa_cfg); 8438 ioa_cfg->max_devs_supported = ipr_max_devs; 8439 8440 if (ioa_cfg->sis64) { 8441 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 8442 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 8443 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 8444 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 8445 } else { 8446 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 8447 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 8448 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 8449 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 8450 } 8451 host->max_channel = IPR_MAX_BUS_TO_SCAN; 8452 host->unique_id = host->host_no; 8453 host->max_cmd_len = IPR_MAX_CDB_LEN; 8454 pci_set_drvdata(pdev, ioa_cfg); 8455 8456 p = &ioa_cfg->chip_cfg->regs; 8457 t = &ioa_cfg->regs; 8458 base = ioa_cfg->hdw_dma_regs; 8459 8460 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 8461 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 8462 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 8463 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 8464 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 8465 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 8466 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 8467 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 8468 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 8469 t->ioarrin_reg = base + p->ioarrin_reg; 8470 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 8471 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 8472 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 8473 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 8474 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 8475 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 8476 8477 if (ioa_cfg->sis64) { 8478 t->init_feedback_reg = base + p->init_feedback_reg; 8479 t->dump_addr_reg = base + p->dump_addr_reg; 8480 t->dump_data_reg = base + p->dump_data_reg; 8481 t->endian_swap_reg = base + p->endian_swap_reg; 8482 } 8483} 8484 8485/** 8486 * ipr_get_chip_info - Find adapter chip information 8487 * @dev_id: PCI device id struct 8488 * 8489 * Return value: 8490 * ptr to chip information on success / NULL on failure 8491 **/ 8492static const struct ipr_chip_t * __devinit 8493ipr_get_chip_info(const struct pci_device_id *dev_id) 8494{ 8495 int i; 8496 8497 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 8498 if (ipr_chip[i].vendor == dev_id->vendor && 8499 ipr_chip[i].device == dev_id->device) 8500 return &ipr_chip[i]; 8501 return NULL; 8502} 8503 8504/** 8505 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 8506 * @pdev: PCI device struct 8507 * 8508 * Description: Simply set the msi_received flag to 1 indicating that 8509 * Message Signaled Interrupts are supported. 8510 * 8511 * Return value: 8512 * 0 on success / non-zero on failure 8513 **/ 8514static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) 8515{ 8516 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 8517 unsigned long lock_flags = 0; 8518 irqreturn_t rc = IRQ_HANDLED; 8519 8520 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8521 8522 ioa_cfg->msi_received = 1; 8523 wake_up(&ioa_cfg->msi_wait_q); 8524 8525 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8526 return rc; 8527} 8528 8529/** 8530 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 8531 * @pdev: PCI device struct 8532 * 8533 * Description: The return value from pci_enable_msi() can not always be 8534 * trusted. This routine sets up and initiates a test interrupt to determine 8535 * if the interrupt is received via the ipr_test_intr() service routine. 8536 * If the tests fails, the driver will fall back to LSI. 8537 * 8538 * Return value: 8539 * 0 on success / non-zero on failure 8540 **/ 8541static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, 8542 struct pci_dev *pdev) 8543{ 8544 int rc; 8545 volatile u32 int_reg; 8546 unsigned long lock_flags = 0; 8547 8548 ENTER; 8549 8550 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8551 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8552 ioa_cfg->msi_received = 0; 8553 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8554 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 8555 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8556 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8557 8558 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 8559 if (rc) { 8560 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); 8561 return rc; 8562 } else if (ipr_debug) 8563 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); 8564 8565 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 8566 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8567 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 8568 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8569 8570 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8571 if (!ioa_cfg->msi_received) { 8572 /* MSI test failed */ 8573 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 8574 rc = -EOPNOTSUPP; 8575 } else if (ipr_debug) 8576 dev_info(&pdev->dev, "MSI test succeeded.\n"); 8577 8578 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8579 8580 free_irq(pdev->irq, ioa_cfg); 8581 8582 LEAVE; 8583 8584 return rc; 8585} 8586 8587/** 8588 * ipr_probe_ioa - Allocates memory and does first stage of initialization 8589 * @pdev: PCI device struct 8590 * @dev_id: PCI device id struct 8591 * 8592 * Return value: 8593 * 0 on success / non-zero on failure 8594 **/ 8595static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 8596 const struct pci_device_id *dev_id) 8597{ 8598 struct ipr_ioa_cfg *ioa_cfg; 8599 struct Scsi_Host *host; 8600 unsigned long ipr_regs_pci; 8601 void __iomem *ipr_regs; 8602 int rc = PCIBIOS_SUCCESSFUL; 8603 volatile u32 mask, uproc, interrupts; 8604 8605 ENTER; 8606 8607 if ((rc = pci_enable_device(pdev))) { 8608 dev_err(&pdev->dev, "Cannot enable adapter\n"); 8609 goto out; 8610 } 8611 8612 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 8613 8614 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 8615 8616 if (!host) { 8617 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 8618 rc = -ENOMEM; 8619 goto out_disable; 8620 } 8621 8622 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 8623 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 8624 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 8625 sata_port_info.flags, &ipr_sata_ops); 8626 8627 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 8628 8629 if (!ioa_cfg->ipr_chip) { 8630 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 8631 dev_id->vendor, dev_id->device); 8632 goto out_scsi_host_put; 8633 } 8634 8635 /* set SIS 32 or SIS 64 */ 8636 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 8637 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 8638 8639 if (ipr_transop_timeout) 8640 ioa_cfg->transop_timeout = ipr_transop_timeout; 8641 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 8642 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 8643 else 8644 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 8645 8646 ioa_cfg->revid = pdev->revision; 8647 8648 ipr_regs_pci = pci_resource_start(pdev, 0); 8649 8650 rc = pci_request_regions(pdev, IPR_NAME); 8651 if (rc < 0) { 8652 dev_err(&pdev->dev, 8653 "Couldn't register memory range of registers\n"); 8654 goto out_scsi_host_put; 8655 } 8656 8657 ipr_regs = pci_ioremap_bar(pdev, 0); 8658 8659 if (!ipr_regs) { 8660 dev_err(&pdev->dev, 8661 "Couldn't map memory range of registers\n"); 8662 rc = -ENOMEM; 8663 goto out_release_regions; 8664 } 8665 8666 ioa_cfg->hdw_dma_regs = ipr_regs; 8667 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 8668 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 8669 8670 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 8671 8672 pci_set_master(pdev); 8673 8674 if (ioa_cfg->sis64) { 8675 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 8676 if (rc < 0) { 8677 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); 8678 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8679 } 8680 8681 } else 8682 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8683 8684 if (rc < 0) { 8685 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 8686 goto cleanup_nomem; 8687 } 8688 8689 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 8690 ioa_cfg->chip_cfg->cache_line_size); 8691 8692 if (rc != PCIBIOS_SUCCESSFUL) { 8693 dev_err(&pdev->dev, "Write of cache line size failed\n"); 8694 rc = -EIO; 8695 goto cleanup_nomem; 8696 } 8697 8698 /* Enable MSI style interrupts if they are supported. */ 8699 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { 8700 rc = ipr_test_msi(ioa_cfg, pdev); 8701 if (rc == -EOPNOTSUPP) 8702 pci_disable_msi(pdev); 8703 else if (rc) 8704 goto out_msi_disable; 8705 else 8706 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); 8707 } else if (ipr_debug) 8708 dev_info(&pdev->dev, "Cannot enable MSI.\n"); 8709 8710 /* Save away PCI config space for use following IOA reset */ 8711 rc = pci_save_state(pdev); 8712 8713 if (rc != PCIBIOS_SUCCESSFUL) { 8714 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 8715 rc = -EIO; 8716 goto cleanup_nomem; 8717 } 8718 8719 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 8720 goto cleanup_nomem; 8721 8722 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 8723 goto cleanup_nomem; 8724 8725 if (ioa_cfg->sis64) 8726 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 8727 + ((sizeof(struct ipr_config_table_entry64) 8728 * ioa_cfg->max_devs_supported))); 8729 else 8730 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 8731 + ((sizeof(struct ipr_config_table_entry) 8732 * ioa_cfg->max_devs_supported))); 8733 8734 rc = ipr_alloc_mem(ioa_cfg); 8735 if (rc < 0) { 8736 dev_err(&pdev->dev, 8737 "Couldn't allocate enough memory for device driver!\n"); 8738 goto cleanup_nomem; 8739 } 8740 8741 /* 8742 * If HRRQ updated interrupt is not masked, or reset alert is set, 8743 * the card is in an unknown state and needs a hard reset 8744 */ 8745 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 8746 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 8747 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 8748 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 8749 ioa_cfg->needs_hard_reset = 1; 8750 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 8751 ioa_cfg->needs_hard_reset = 1; 8752 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 8753 ioa_cfg->ioa_unit_checked = 1; 8754 8755 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8756 rc = request_irq(pdev->irq, ipr_isr, 8757 ioa_cfg->msi_received ? 0 : IRQF_SHARED, 8758 IPR_NAME, ioa_cfg); 8759 8760 if (rc) { 8761 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 8762 pdev->irq, rc); 8763 goto cleanup_nolog; 8764 } 8765 8766 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 8767 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 8768 ioa_cfg->needs_warm_reset = 1; 8769 ioa_cfg->reset = ipr_reset_slot_reset; 8770 } else 8771 ioa_cfg->reset = ipr_reset_start_bist; 8772 8773 spin_lock(&ipr_driver_lock); 8774 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 8775 spin_unlock(&ipr_driver_lock); 8776 8777 LEAVE; 8778out: 8779 return rc; 8780 8781cleanup_nolog: 8782 ipr_free_mem(ioa_cfg); 8783cleanup_nomem: 8784 iounmap(ipr_regs); 8785out_msi_disable: 8786 pci_disable_msi(pdev); 8787out_release_regions: 8788 pci_release_regions(pdev); 8789out_scsi_host_put: 8790 scsi_host_put(host); 8791out_disable: 8792 pci_disable_device(pdev); 8793 goto out; 8794} 8795 8796/** 8797 * ipr_scan_vsets - Scans for VSET devices 8798 * @ioa_cfg: ioa config struct 8799 * 8800 * Description: Since the VSET resources do not follow SAM in that we can have 8801 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 8802 * 8803 * Return value: 8804 * none 8805 **/ 8806static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 8807{ 8808 int target, lun; 8809 8810 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 8811 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 8812 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 8813} 8814 8815/** 8816 * ipr_initiate_ioa_bringdown - Bring down an adapter 8817 * @ioa_cfg: ioa config struct 8818 * @shutdown_type: shutdown type 8819 * 8820 * Description: This function will initiate bringing down the adapter. 8821 * This consists of issuing an IOA shutdown to the adapter 8822 * to flush the cache, and running BIST. 8823 * If the caller needs to wait on the completion of the reset, 8824 * the caller must sleep on the reset_wait_q. 8825 * 8826 * Return value: 8827 * none 8828 **/ 8829static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 8830 enum ipr_shutdown_type shutdown_type) 8831{ 8832 ENTER; 8833 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8834 ioa_cfg->sdt_state = ABORT_DUMP; 8835 ioa_cfg->reset_retries = 0; 8836 ioa_cfg->in_ioa_bringdown = 1; 8837 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 8838 LEAVE; 8839} 8840 8841/** 8842 * __ipr_remove - Remove a single adapter 8843 * @pdev: pci device struct 8844 * 8845 * Adapter hot plug remove entry point. 8846 * 8847 * Return value: 8848 * none 8849 **/ 8850static void __ipr_remove(struct pci_dev *pdev) 8851{ 8852 unsigned long host_lock_flags = 0; 8853 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8854 ENTER; 8855 8856 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8857 while(ioa_cfg->in_reset_reload) { 8858 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8859 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8860 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8861 } 8862 8863 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8864 8865 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8866 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8867 flush_scheduled_work(); 8868 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8869 8870 spin_lock(&ipr_driver_lock); 8871 list_del(&ioa_cfg->queue); 8872 spin_unlock(&ipr_driver_lock); 8873 8874 if (ioa_cfg->sdt_state == ABORT_DUMP) 8875 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8876 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8877 8878 ipr_free_all_resources(ioa_cfg); 8879 8880 LEAVE; 8881} 8882 8883/** 8884 * ipr_remove - IOA hot plug remove entry point 8885 * @pdev: pci device struct 8886 * 8887 * Adapter hot plug remove entry point. 8888 * 8889 * Return value: 8890 * none 8891 **/ 8892static void __devexit ipr_remove(struct pci_dev *pdev) 8893{ 8894 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8895 8896 ENTER; 8897 8898 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8899 &ipr_trace_attr); 8900 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 8901 &ipr_dump_attr); 8902 scsi_remove_host(ioa_cfg->host); 8903 8904 __ipr_remove(pdev); 8905 8906 LEAVE; 8907} 8908 8909/** 8910 * ipr_probe - Adapter hot plug add entry point 8911 * 8912 * Return value: 8913 * 0 on success / non-zero on failure 8914 **/ 8915static int __devinit ipr_probe(struct pci_dev *pdev, 8916 const struct pci_device_id *dev_id) 8917{ 8918 struct ipr_ioa_cfg *ioa_cfg; 8919 int rc; 8920 8921 rc = ipr_probe_ioa(pdev, dev_id); 8922 8923 if (rc) 8924 return rc; 8925 8926 ioa_cfg = pci_get_drvdata(pdev); 8927 rc = ipr_probe_ioa_part2(ioa_cfg); 8928 8929 if (rc) { 8930 __ipr_remove(pdev); 8931 return rc; 8932 } 8933 8934 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 8935 8936 if (rc) { 8937 __ipr_remove(pdev); 8938 return rc; 8939 } 8940 8941 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 8942 &ipr_trace_attr); 8943 8944 if (rc) { 8945 scsi_remove_host(ioa_cfg->host); 8946 __ipr_remove(pdev); 8947 return rc; 8948 } 8949 8950 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 8951 &ipr_dump_attr); 8952 8953 if (rc) { 8954 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8955 &ipr_trace_attr); 8956 scsi_remove_host(ioa_cfg->host); 8957 __ipr_remove(pdev); 8958 return rc; 8959 } 8960 8961 scsi_scan_host(ioa_cfg->host); 8962 ipr_scan_vsets(ioa_cfg); 8963 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 8964 ioa_cfg->allow_ml_add_del = 1; 8965 ioa_cfg->host->max_channel = IPR_VSET_BUS; 8966 schedule_work(&ioa_cfg->work_q); 8967 return 0; 8968} 8969 8970/** 8971 * ipr_shutdown - Shutdown handler. 8972 * @pdev: pci device struct 8973 * 8974 * This function is invoked upon system shutdown/reboot. It will issue 8975 * an adapter shutdown to the adapter to flush the write cache. 8976 * 8977 * Return value: 8978 * none 8979 **/ 8980static void ipr_shutdown(struct pci_dev *pdev) 8981{ 8982 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8983 unsigned long lock_flags = 0; 8984 8985 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8986 while(ioa_cfg->in_reset_reload) { 8987 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8988 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8989 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8990 } 8991 8992 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8993 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8994 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8995} 8996 8997static struct pci_device_id ipr_pci_table[] __devinitdata = { 8998 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 8999 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 9000 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9001 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 9002 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9003 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 9004 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9005 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 9006 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9007 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 9008 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9009 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 9010 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9011 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 9012 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9013 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 9014 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9015 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9016 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 9017 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9018 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 9019 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9020 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9021 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 9022 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9023 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9024 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 9025 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9026 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 9027 IPR_USE_LONG_TRANSOP_TIMEOUT}, 9028 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9029 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 9030 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9031 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9032 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 9033 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9034 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9035 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 9036 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9037 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, 9038 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9039 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 9040 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 9041 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 9042 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 9043 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9044 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 9045 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9046 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 9047 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9048 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9049 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 9050 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9051 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9052 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 9053 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9054 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 9055 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9056 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 9057 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9058 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, 9059 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9060 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 9061 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9062 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 9063 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9064 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 9065 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9066 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 }, 9067 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9068 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 9069 { } 9070}; 9071MODULE_DEVICE_TABLE(pci, ipr_pci_table); 9072 9073static struct pci_error_handlers ipr_err_handler = { 9074 .error_detected = ipr_pci_error_detected, 9075 .slot_reset = ipr_pci_slot_reset, 9076}; 9077 9078static struct pci_driver ipr_driver = { 9079 .name = IPR_NAME, 9080 .id_table = ipr_pci_table, 9081 .probe = ipr_probe, 9082 .remove = __devexit_p(ipr_remove), 9083 .shutdown = ipr_shutdown, 9084 .err_handler = &ipr_err_handler, 9085}; 9086 9087/** 9088 * ipr_halt_done - Shutdown prepare completion 9089 * 9090 * Return value: 9091 * none 9092 **/ 9093static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 9094{ 9095 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9096 9097 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 9098} 9099 9100/** 9101 * ipr_halt - Issue shutdown prepare to all adapters 9102 * 9103 * Return value: 9104 * NOTIFY_OK on success / NOTIFY_DONE on failure 9105 **/ 9106static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 9107{ 9108 struct ipr_cmnd *ipr_cmd; 9109 struct ipr_ioa_cfg *ioa_cfg; 9110 unsigned long flags = 0; 9111 9112 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 9113 return NOTIFY_DONE; 9114 9115 spin_lock(&ipr_driver_lock); 9116 9117 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 9118 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9119 if (!ioa_cfg->allow_cmds) { 9120 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9121 continue; 9122 } 9123 9124 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 9125 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9126 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 9127 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 9128 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 9129 9130 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 9131 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9132 } 9133 spin_unlock(&ipr_driver_lock); 9134 9135 return NOTIFY_OK; 9136} 9137 9138static struct notifier_block ipr_notifier = { 9139 ipr_halt, NULL, 0 9140}; 9141 9142/** 9143 * ipr_init - Module entry point 9144 * 9145 * Return value: 9146 * 0 on success / negative value on failure 9147 **/ 9148static int __init ipr_init(void) 9149{ 9150 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 9151 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 9152 9153 register_reboot_notifier(&ipr_notifier); 9154 return pci_register_driver(&ipr_driver); 9155} 9156 9157/** 9158 * ipr_exit - Module unload 9159 * 9160 * Module unload entry point. 9161 * 9162 * Return value: 9163 * none 9164 **/ 9165static void __exit ipr_exit(void) 9166{ 9167 unregister_reboot_notifier(&ipr_notifier); 9168 pci_unregister_driver(&ipr_driver); 9169} 9170 9171module_init(ipr_init); 9172module_exit(ipr_exit); 9173