ipr.c revision 7dacb64f49848f1f28018fd3e58af8d6ba234960
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 || res->del_from_ml) { 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 if (!res->add_to_ml) 3108 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3109 else 3110 res->del_from_ml = 0; 3111 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3112 scsi_remove_device(sdev); 3113 scsi_device_put(sdev); 3114 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3115 } 3116 break; 3117 } 3118 } 3119 } while(did_work); 3120 3121 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3122 if (res->add_to_ml) { 3123 bus = res->bus; 3124 target = res->target; 3125 lun = res->lun; 3126 res->add_to_ml = 0; 3127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3128 scsi_add_device(ioa_cfg->host, bus, target, lun); 3129 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3130 goto restart; 3131 } 3132 } 3133 3134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3135 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3136 LEAVE; 3137} 3138 3139#ifdef CONFIG_SCSI_IPR_TRACE 3140/** 3141 * ipr_read_trace - Dump the adapter trace 3142 * @filp: open sysfs file 3143 * @kobj: kobject struct 3144 * @bin_attr: bin_attribute struct 3145 * @buf: buffer 3146 * @off: offset 3147 * @count: buffer size 3148 * 3149 * Return value: 3150 * number of bytes printed to buffer 3151 **/ 3152static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, 3153 struct bin_attribute *bin_attr, 3154 char *buf, loff_t off, size_t count) 3155{ 3156 struct device *dev = container_of(kobj, struct device, kobj); 3157 struct Scsi_Host *shost = class_to_shost(dev); 3158 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3159 unsigned long lock_flags = 0; 3160 ssize_t ret; 3161 3162 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3163 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3164 IPR_TRACE_SIZE); 3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3166 3167 return ret; 3168} 3169 3170static struct bin_attribute ipr_trace_attr = { 3171 .attr = { 3172 .name = "trace", 3173 .mode = S_IRUGO, 3174 }, 3175 .size = 0, 3176 .read = ipr_read_trace, 3177}; 3178#endif 3179 3180/** 3181 * ipr_show_fw_version - Show the firmware version 3182 * @dev: class device struct 3183 * @buf: buffer 3184 * 3185 * Return value: 3186 * number of bytes printed to buffer 3187 **/ 3188static ssize_t ipr_show_fw_version(struct device *dev, 3189 struct device_attribute *attr, char *buf) 3190{ 3191 struct Scsi_Host *shost = class_to_shost(dev); 3192 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3193 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3194 unsigned long lock_flags = 0; 3195 int len; 3196 3197 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3198 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3199 ucode_vpd->major_release, ucode_vpd->card_type, 3200 ucode_vpd->minor_release[0], 3201 ucode_vpd->minor_release[1]); 3202 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3203 return len; 3204} 3205 3206static struct device_attribute ipr_fw_version_attr = { 3207 .attr = { 3208 .name = "fw_version", 3209 .mode = S_IRUGO, 3210 }, 3211 .show = ipr_show_fw_version, 3212}; 3213 3214/** 3215 * ipr_show_log_level - Show the adapter's error logging level 3216 * @dev: class device struct 3217 * @buf: buffer 3218 * 3219 * Return value: 3220 * number of bytes printed to buffer 3221 **/ 3222static ssize_t ipr_show_log_level(struct device *dev, 3223 struct device_attribute *attr, char *buf) 3224{ 3225 struct Scsi_Host *shost = class_to_shost(dev); 3226 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3227 unsigned long lock_flags = 0; 3228 int len; 3229 3230 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3231 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3232 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3233 return len; 3234} 3235 3236/** 3237 * ipr_store_log_level - Change the adapter's error logging level 3238 * @dev: class device struct 3239 * @buf: buffer 3240 * 3241 * Return value: 3242 * number of bytes printed to buffer 3243 **/ 3244static ssize_t ipr_store_log_level(struct device *dev, 3245 struct device_attribute *attr, 3246 const char *buf, size_t count) 3247{ 3248 struct Scsi_Host *shost = class_to_shost(dev); 3249 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3250 unsigned long lock_flags = 0; 3251 3252 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3253 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3255 return strlen(buf); 3256} 3257 3258static struct device_attribute ipr_log_level_attr = { 3259 .attr = { 3260 .name = "log_level", 3261 .mode = S_IRUGO | S_IWUSR, 3262 }, 3263 .show = ipr_show_log_level, 3264 .store = ipr_store_log_level 3265}; 3266 3267/** 3268 * ipr_store_diagnostics - IOA Diagnostics interface 3269 * @dev: device struct 3270 * @buf: buffer 3271 * @count: buffer size 3272 * 3273 * This function will reset the adapter and wait a reasonable 3274 * amount of time for any errors that the adapter might log. 3275 * 3276 * Return value: 3277 * count on success / other on failure 3278 **/ 3279static ssize_t ipr_store_diagnostics(struct device *dev, 3280 struct device_attribute *attr, 3281 const char *buf, size_t count) 3282{ 3283 struct Scsi_Host *shost = class_to_shost(dev); 3284 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3285 unsigned long lock_flags = 0; 3286 int rc = count; 3287 3288 if (!capable(CAP_SYS_ADMIN)) 3289 return -EACCES; 3290 3291 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3292 while(ioa_cfg->in_reset_reload) { 3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3294 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3295 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3296 } 3297 3298 ioa_cfg->errors_logged = 0; 3299 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3300 3301 if (ioa_cfg->in_reset_reload) { 3302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3303 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3304 3305 /* Wait for a second for any errors to be logged */ 3306 msleep(1000); 3307 } else { 3308 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3309 return -EIO; 3310 } 3311 3312 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3313 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3314 rc = -EIO; 3315 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3316 3317 return rc; 3318} 3319 3320static struct device_attribute ipr_diagnostics_attr = { 3321 .attr = { 3322 .name = "run_diagnostics", 3323 .mode = S_IWUSR, 3324 }, 3325 .store = ipr_store_diagnostics 3326}; 3327 3328/** 3329 * ipr_show_adapter_state - Show the adapter's state 3330 * @class_dev: device struct 3331 * @buf: buffer 3332 * 3333 * Return value: 3334 * number of bytes printed to buffer 3335 **/ 3336static ssize_t ipr_show_adapter_state(struct device *dev, 3337 struct device_attribute *attr, char *buf) 3338{ 3339 struct Scsi_Host *shost = class_to_shost(dev); 3340 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3341 unsigned long lock_flags = 0; 3342 int len; 3343 3344 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3345 if (ioa_cfg->ioa_is_dead) 3346 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3347 else 3348 len = snprintf(buf, PAGE_SIZE, "online\n"); 3349 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3350 return len; 3351} 3352 3353/** 3354 * ipr_store_adapter_state - Change adapter state 3355 * @dev: device struct 3356 * @buf: buffer 3357 * @count: buffer size 3358 * 3359 * This function will change the adapter's state. 3360 * 3361 * Return value: 3362 * count on success / other on failure 3363 **/ 3364static ssize_t ipr_store_adapter_state(struct device *dev, 3365 struct device_attribute *attr, 3366 const char *buf, size_t count) 3367{ 3368 struct Scsi_Host *shost = class_to_shost(dev); 3369 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3370 unsigned long lock_flags; 3371 int result = count; 3372 3373 if (!capable(CAP_SYS_ADMIN)) 3374 return -EACCES; 3375 3376 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3377 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 3378 ioa_cfg->ioa_is_dead = 0; 3379 ioa_cfg->reset_retries = 0; 3380 ioa_cfg->in_ioa_bringdown = 0; 3381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3382 } 3383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3384 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3385 3386 return result; 3387} 3388 3389static struct device_attribute ipr_ioa_state_attr = { 3390 .attr = { 3391 .name = "online_state", 3392 .mode = S_IRUGO | S_IWUSR, 3393 }, 3394 .show = ipr_show_adapter_state, 3395 .store = ipr_store_adapter_state 3396}; 3397 3398/** 3399 * ipr_store_reset_adapter - Reset the adapter 3400 * @dev: device struct 3401 * @buf: buffer 3402 * @count: buffer size 3403 * 3404 * This function will reset the adapter. 3405 * 3406 * Return value: 3407 * count on success / other on failure 3408 **/ 3409static ssize_t ipr_store_reset_adapter(struct device *dev, 3410 struct device_attribute *attr, 3411 const char *buf, size_t count) 3412{ 3413 struct Scsi_Host *shost = class_to_shost(dev); 3414 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3415 unsigned long lock_flags; 3416 int result = count; 3417 3418 if (!capable(CAP_SYS_ADMIN)) 3419 return -EACCES; 3420 3421 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3422 if (!ioa_cfg->in_reset_reload) 3423 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3424 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3425 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3426 3427 return result; 3428} 3429 3430static struct device_attribute ipr_ioa_reset_attr = { 3431 .attr = { 3432 .name = "reset_host", 3433 .mode = S_IWUSR, 3434 }, 3435 .store = ipr_store_reset_adapter 3436}; 3437 3438/** 3439 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3440 * @buf_len: buffer length 3441 * 3442 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3443 * list to use for microcode download 3444 * 3445 * Return value: 3446 * pointer to sglist / NULL on failure 3447 **/ 3448static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3449{ 3450 int sg_size, order, bsize_elem, num_elem, i, j; 3451 struct ipr_sglist *sglist; 3452 struct scatterlist *scatterlist; 3453 struct page *page; 3454 3455 /* Get the minimum size per scatter/gather element */ 3456 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3457 3458 /* Get the actual size per element */ 3459 order = get_order(sg_size); 3460 3461 /* Determine the actual number of bytes per element */ 3462 bsize_elem = PAGE_SIZE * (1 << order); 3463 3464 /* Determine the actual number of sg entries needed */ 3465 if (buf_len % bsize_elem) 3466 num_elem = (buf_len / bsize_elem) + 1; 3467 else 3468 num_elem = buf_len / bsize_elem; 3469 3470 /* Allocate a scatter/gather list for the DMA */ 3471 sglist = kzalloc(sizeof(struct ipr_sglist) + 3472 (sizeof(struct scatterlist) * (num_elem - 1)), 3473 GFP_KERNEL); 3474 3475 if (sglist == NULL) { 3476 ipr_trace; 3477 return NULL; 3478 } 3479 3480 scatterlist = sglist->scatterlist; 3481 sg_init_table(scatterlist, num_elem); 3482 3483 sglist->order = order; 3484 sglist->num_sg = num_elem; 3485 3486 /* Allocate a bunch of sg elements */ 3487 for (i = 0; i < num_elem; i++) { 3488 page = alloc_pages(GFP_KERNEL, order); 3489 if (!page) { 3490 ipr_trace; 3491 3492 /* Free up what we already allocated */ 3493 for (j = i - 1; j >= 0; j--) 3494 __free_pages(sg_page(&scatterlist[j]), order); 3495 kfree(sglist); 3496 return NULL; 3497 } 3498 3499 sg_set_page(&scatterlist[i], page, 0, 0); 3500 } 3501 3502 return sglist; 3503} 3504 3505/** 3506 * ipr_free_ucode_buffer - Frees a microcode download buffer 3507 * @p_dnld: scatter/gather list pointer 3508 * 3509 * Free a DMA'able ucode download buffer previously allocated with 3510 * ipr_alloc_ucode_buffer 3511 * 3512 * Return value: 3513 * nothing 3514 **/ 3515static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3516{ 3517 int i; 3518 3519 for (i = 0; i < sglist->num_sg; i++) 3520 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 3521 3522 kfree(sglist); 3523} 3524 3525/** 3526 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3527 * @sglist: scatter/gather list pointer 3528 * @buffer: buffer pointer 3529 * @len: buffer length 3530 * 3531 * Copy a microcode image from a user buffer into a buffer allocated by 3532 * ipr_alloc_ucode_buffer 3533 * 3534 * Return value: 3535 * 0 on success / other on failure 3536 **/ 3537static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3538 u8 *buffer, u32 len) 3539{ 3540 int bsize_elem, i, result = 0; 3541 struct scatterlist *scatterlist; 3542 void *kaddr; 3543 3544 /* Determine the actual number of bytes per element */ 3545 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3546 3547 scatterlist = sglist->scatterlist; 3548 3549 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 3550 struct page *page = sg_page(&scatterlist[i]); 3551 3552 kaddr = kmap(page); 3553 memcpy(kaddr, buffer, bsize_elem); 3554 kunmap(page); 3555 3556 scatterlist[i].length = bsize_elem; 3557 3558 if (result != 0) { 3559 ipr_trace; 3560 return result; 3561 } 3562 } 3563 3564 if (len % bsize_elem) { 3565 struct page *page = sg_page(&scatterlist[i]); 3566 3567 kaddr = kmap(page); 3568 memcpy(kaddr, buffer, len % bsize_elem); 3569 kunmap(page); 3570 3571 scatterlist[i].length = len % bsize_elem; 3572 } 3573 3574 sglist->buffer_len = len; 3575 return result; 3576} 3577 3578/** 3579 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3580 * @ipr_cmd: ipr command struct 3581 * @sglist: scatter/gather list 3582 * 3583 * Builds a microcode download IOA data list (IOADL). 3584 * 3585 **/ 3586static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3587 struct ipr_sglist *sglist) 3588{ 3589 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3590 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3591 struct scatterlist *scatterlist = sglist->scatterlist; 3592 int i; 3593 3594 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3595 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3596 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3597 3598 ioarcb->ioadl_len = 3599 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3600 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3601 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3602 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); 3603 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); 3604 } 3605 3606 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3607} 3608 3609/** 3610 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3611 * @ipr_cmd: ipr command struct 3612 * @sglist: scatter/gather list 3613 * 3614 * Builds a microcode download IOA data list (IOADL). 3615 * 3616 **/ 3617static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3618 struct ipr_sglist *sglist) 3619{ 3620 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3621 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3622 struct scatterlist *scatterlist = sglist->scatterlist; 3623 int i; 3624 3625 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3626 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3627 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3628 3629 ioarcb->ioadl_len = 3630 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3631 3632 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3633 ioadl[i].flags_and_data_len = 3634 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3635 ioadl[i].address = 3636 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3637 } 3638 3639 ioadl[i-1].flags_and_data_len |= 3640 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3641} 3642 3643/** 3644 * ipr_update_ioa_ucode - Update IOA's microcode 3645 * @ioa_cfg: ioa config struct 3646 * @sglist: scatter/gather list 3647 * 3648 * Initiate an adapter reset to update the IOA's microcode 3649 * 3650 * Return value: 3651 * 0 on success / -EIO on failure 3652 **/ 3653static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3654 struct ipr_sglist *sglist) 3655{ 3656 unsigned long lock_flags; 3657 3658 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3659 while(ioa_cfg->in_reset_reload) { 3660 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3661 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3662 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3663 } 3664 3665 if (ioa_cfg->ucode_sglist) { 3666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3667 dev_err(&ioa_cfg->pdev->dev, 3668 "Microcode download already in progress\n"); 3669 return -EIO; 3670 } 3671 3672 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3673 sglist->num_sg, DMA_TO_DEVICE); 3674 3675 if (!sglist->num_dma_sg) { 3676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3677 dev_err(&ioa_cfg->pdev->dev, 3678 "Failed to map microcode download buffer!\n"); 3679 return -EIO; 3680 } 3681 3682 ioa_cfg->ucode_sglist = sglist; 3683 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3685 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3686 3687 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3688 ioa_cfg->ucode_sglist = NULL; 3689 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3690 return 0; 3691} 3692 3693/** 3694 * ipr_store_update_fw - Update the firmware on the adapter 3695 * @class_dev: device struct 3696 * @buf: buffer 3697 * @count: buffer size 3698 * 3699 * This function will update the firmware on the adapter. 3700 * 3701 * Return value: 3702 * count on success / other on failure 3703 **/ 3704static ssize_t ipr_store_update_fw(struct device *dev, 3705 struct device_attribute *attr, 3706 const char *buf, size_t count) 3707{ 3708 struct Scsi_Host *shost = class_to_shost(dev); 3709 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3710 struct ipr_ucode_image_header *image_hdr; 3711 const struct firmware *fw_entry; 3712 struct ipr_sglist *sglist; 3713 char fname[100]; 3714 char *src; 3715 int len, result, dnld_size; 3716 3717 if (!capable(CAP_SYS_ADMIN)) 3718 return -EACCES; 3719 3720 len = snprintf(fname, 99, "%s", buf); 3721 fname[len-1] = '\0'; 3722 3723 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3724 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3725 return -EIO; 3726 } 3727 3728 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3729 3730 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || 3731 (ioa_cfg->vpd_cbs->page3_data.card_type && 3732 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { 3733 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); 3734 release_firmware(fw_entry); 3735 return -EINVAL; 3736 } 3737 3738 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3739 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3740 sglist = ipr_alloc_ucode_buffer(dnld_size); 3741 3742 if (!sglist) { 3743 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3744 release_firmware(fw_entry); 3745 return -ENOMEM; 3746 } 3747 3748 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3749 3750 if (result) { 3751 dev_err(&ioa_cfg->pdev->dev, 3752 "Microcode buffer copy to DMA buffer failed\n"); 3753 goto out; 3754 } 3755 3756 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3757 3758 if (!result) 3759 result = count; 3760out: 3761 ipr_free_ucode_buffer(sglist); 3762 release_firmware(fw_entry); 3763 return result; 3764} 3765 3766static struct device_attribute ipr_update_fw_attr = { 3767 .attr = { 3768 .name = "update_fw", 3769 .mode = S_IWUSR, 3770 }, 3771 .store = ipr_store_update_fw 3772}; 3773 3774/** 3775 * ipr_show_fw_type - Show the adapter's firmware type. 3776 * @dev: class device struct 3777 * @buf: buffer 3778 * 3779 * Return value: 3780 * number of bytes printed to buffer 3781 **/ 3782static ssize_t ipr_show_fw_type(struct device *dev, 3783 struct device_attribute *attr, char *buf) 3784{ 3785 struct Scsi_Host *shost = class_to_shost(dev); 3786 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3787 unsigned long lock_flags = 0; 3788 int len; 3789 3790 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3791 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64); 3792 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3793 return len; 3794} 3795 3796static struct device_attribute ipr_ioa_fw_type_attr = { 3797 .attr = { 3798 .name = "fw_type", 3799 .mode = S_IRUGO, 3800 }, 3801 .show = ipr_show_fw_type 3802}; 3803 3804static struct device_attribute *ipr_ioa_attrs[] = { 3805 &ipr_fw_version_attr, 3806 &ipr_log_level_attr, 3807 &ipr_diagnostics_attr, 3808 &ipr_ioa_state_attr, 3809 &ipr_ioa_reset_attr, 3810 &ipr_update_fw_attr, 3811 &ipr_ioa_fw_type_attr, 3812 NULL, 3813}; 3814 3815#ifdef CONFIG_SCSI_IPR_DUMP 3816/** 3817 * ipr_read_dump - Dump the adapter 3818 * @filp: open sysfs file 3819 * @kobj: kobject struct 3820 * @bin_attr: bin_attribute struct 3821 * @buf: buffer 3822 * @off: offset 3823 * @count: buffer size 3824 * 3825 * Return value: 3826 * number of bytes printed to buffer 3827 **/ 3828static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, 3829 struct bin_attribute *bin_attr, 3830 char *buf, loff_t off, size_t count) 3831{ 3832 struct device *cdev = container_of(kobj, struct device, kobj); 3833 struct Scsi_Host *shost = class_to_shost(cdev); 3834 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3835 struct ipr_dump *dump; 3836 unsigned long lock_flags = 0; 3837 char *src; 3838 int len; 3839 size_t rc = count; 3840 3841 if (!capable(CAP_SYS_ADMIN)) 3842 return -EACCES; 3843 3844 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3845 dump = ioa_cfg->dump; 3846 3847 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3848 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3849 return 0; 3850 } 3851 kref_get(&dump->kref); 3852 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3853 3854 if (off > dump->driver_dump.hdr.len) { 3855 kref_put(&dump->kref, ipr_release_dump); 3856 return 0; 3857 } 3858 3859 if (off + count > dump->driver_dump.hdr.len) { 3860 count = dump->driver_dump.hdr.len - off; 3861 rc = count; 3862 } 3863 3864 if (count && off < sizeof(dump->driver_dump)) { 3865 if (off + count > sizeof(dump->driver_dump)) 3866 len = sizeof(dump->driver_dump) - off; 3867 else 3868 len = count; 3869 src = (u8 *)&dump->driver_dump + off; 3870 memcpy(buf, src, len); 3871 buf += len; 3872 off += len; 3873 count -= len; 3874 } 3875 3876 off -= sizeof(dump->driver_dump); 3877 3878 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { 3879 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) 3880 len = offsetof(struct ipr_ioa_dump, ioa_data) - off; 3881 else 3882 len = count; 3883 src = (u8 *)&dump->ioa_dump + off; 3884 memcpy(buf, src, len); 3885 buf += len; 3886 off += len; 3887 count -= len; 3888 } 3889 3890 off -= offsetof(struct ipr_ioa_dump, ioa_data); 3891 3892 while (count) { 3893 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3894 len = PAGE_ALIGN(off) - off; 3895 else 3896 len = count; 3897 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3898 src += off & ~PAGE_MASK; 3899 memcpy(buf, src, len); 3900 buf += len; 3901 off += len; 3902 count -= len; 3903 } 3904 3905 kref_put(&dump->kref, ipr_release_dump); 3906 return rc; 3907} 3908 3909/** 3910 * ipr_alloc_dump - Prepare for adapter dump 3911 * @ioa_cfg: ioa config struct 3912 * 3913 * Return value: 3914 * 0 on success / other on failure 3915 **/ 3916static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3917{ 3918 struct ipr_dump *dump; 3919 unsigned long lock_flags = 0; 3920 3921 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3922 3923 if (!dump) { 3924 ipr_err("Dump memory allocation failed\n"); 3925 return -ENOMEM; 3926 } 3927 3928 kref_init(&dump->kref); 3929 dump->ioa_cfg = ioa_cfg; 3930 3931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3932 3933 if (INACTIVE != ioa_cfg->sdt_state) { 3934 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3935 kfree(dump); 3936 return 0; 3937 } 3938 3939 ioa_cfg->dump = dump; 3940 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3941 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3942 ioa_cfg->dump_taken = 1; 3943 schedule_work(&ioa_cfg->work_q); 3944 } 3945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3946 3947 return 0; 3948} 3949 3950/** 3951 * ipr_free_dump - Free adapter dump memory 3952 * @ioa_cfg: ioa config struct 3953 * 3954 * Return value: 3955 * 0 on success / other on failure 3956 **/ 3957static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3958{ 3959 struct ipr_dump *dump; 3960 unsigned long lock_flags = 0; 3961 3962 ENTER; 3963 3964 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3965 dump = ioa_cfg->dump; 3966 if (!dump) { 3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3968 return 0; 3969 } 3970 3971 ioa_cfg->dump = NULL; 3972 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3973 3974 kref_put(&dump->kref, ipr_release_dump); 3975 3976 LEAVE; 3977 return 0; 3978} 3979 3980/** 3981 * ipr_write_dump - Setup dump state of adapter 3982 * @filp: open sysfs file 3983 * @kobj: kobject struct 3984 * @bin_attr: bin_attribute struct 3985 * @buf: buffer 3986 * @off: offset 3987 * @count: buffer size 3988 * 3989 * Return value: 3990 * number of bytes printed to buffer 3991 **/ 3992static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, 3993 struct bin_attribute *bin_attr, 3994 char *buf, loff_t off, size_t count) 3995{ 3996 struct device *cdev = container_of(kobj, struct device, kobj); 3997 struct Scsi_Host *shost = class_to_shost(cdev); 3998 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3999 int rc; 4000 4001 if (!capable(CAP_SYS_ADMIN)) 4002 return -EACCES; 4003 4004 if (buf[0] == '1') 4005 rc = ipr_alloc_dump(ioa_cfg); 4006 else if (buf[0] == '0') 4007 rc = ipr_free_dump(ioa_cfg); 4008 else 4009 return -EINVAL; 4010 4011 if (rc) 4012 return rc; 4013 else 4014 return count; 4015} 4016 4017static struct bin_attribute ipr_dump_attr = { 4018 .attr = { 4019 .name = "dump", 4020 .mode = S_IRUSR | S_IWUSR, 4021 }, 4022 .size = 0, 4023 .read = ipr_read_dump, 4024 .write = ipr_write_dump 4025}; 4026#else 4027static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 4028#endif 4029 4030/** 4031 * ipr_change_queue_depth - Change the device's queue depth 4032 * @sdev: scsi device struct 4033 * @qdepth: depth to set 4034 * @reason: calling context 4035 * 4036 * Return value: 4037 * actual depth set 4038 **/ 4039static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, 4040 int reason) 4041{ 4042 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4043 struct ipr_resource_entry *res; 4044 unsigned long lock_flags = 0; 4045 4046 if (reason != SCSI_QDEPTH_DEFAULT) 4047 return -EOPNOTSUPP; 4048 4049 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4050 res = (struct ipr_resource_entry *)sdev->hostdata; 4051 4052 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 4053 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 4054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4055 4056 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 4057 return sdev->queue_depth; 4058} 4059 4060/** 4061 * ipr_change_queue_type - Change the device's queue type 4062 * @dsev: scsi device struct 4063 * @tag_type: type of tags to use 4064 * 4065 * Return value: 4066 * actual queue type set 4067 **/ 4068static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 4069{ 4070 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4071 struct ipr_resource_entry *res; 4072 unsigned long lock_flags = 0; 4073 4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4075 res = (struct ipr_resource_entry *)sdev->hostdata; 4076 4077 if (res) { 4078 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 4079 /* 4080 * We don't bother quiescing the device here since the 4081 * adapter firmware does it for us. 4082 */ 4083 scsi_set_tag_type(sdev, tag_type); 4084 4085 if (tag_type) 4086 scsi_activate_tcq(sdev, sdev->queue_depth); 4087 else 4088 scsi_deactivate_tcq(sdev, sdev->queue_depth); 4089 } else 4090 tag_type = 0; 4091 } else 4092 tag_type = 0; 4093 4094 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4095 return tag_type; 4096} 4097 4098/** 4099 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4100 * @dev: device struct 4101 * @attr: device attribute structure 4102 * @buf: buffer 4103 * 4104 * Return value: 4105 * number of bytes printed to buffer 4106 **/ 4107static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4108{ 4109 struct scsi_device *sdev = to_scsi_device(dev); 4110 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4111 struct ipr_resource_entry *res; 4112 unsigned long lock_flags = 0; 4113 ssize_t len = -ENXIO; 4114 4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4116 res = (struct ipr_resource_entry *)sdev->hostdata; 4117 if (res) 4118 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4119 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4120 return len; 4121} 4122 4123static struct device_attribute ipr_adapter_handle_attr = { 4124 .attr = { 4125 .name = "adapter_handle", 4126 .mode = S_IRUSR, 4127 }, 4128 .show = ipr_show_adapter_handle 4129}; 4130 4131/** 4132 * ipr_show_resource_path - Show the resource path or the resource address for 4133 * this device. 4134 * @dev: device struct 4135 * @attr: device attribute structure 4136 * @buf: buffer 4137 * 4138 * Return value: 4139 * number of bytes printed to buffer 4140 **/ 4141static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4142{ 4143 struct scsi_device *sdev = to_scsi_device(dev); 4144 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4145 struct ipr_resource_entry *res; 4146 unsigned long lock_flags = 0; 4147 ssize_t len = -ENXIO; 4148 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4149 4150 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4151 res = (struct ipr_resource_entry *)sdev->hostdata; 4152 if (res && ioa_cfg->sis64) 4153 len = snprintf(buf, PAGE_SIZE, "%s\n", 4154 ipr_format_res_path(res->res_path, buffer, 4155 sizeof(buffer))); 4156 else if (res) 4157 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no, 4158 res->bus, res->target, res->lun); 4159 4160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4161 return len; 4162} 4163 4164static struct device_attribute ipr_resource_path_attr = { 4165 .attr = { 4166 .name = "resource_path", 4167 .mode = S_IRUGO, 4168 }, 4169 .show = ipr_show_resource_path 4170}; 4171 4172/** 4173 * ipr_show_device_id - Show the device_id for this device. 4174 * @dev: device struct 4175 * @attr: device attribute structure 4176 * @buf: buffer 4177 * 4178 * Return value: 4179 * number of bytes printed to buffer 4180 **/ 4181static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) 4182{ 4183 struct scsi_device *sdev = to_scsi_device(dev); 4184 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4185 struct ipr_resource_entry *res; 4186 unsigned long lock_flags = 0; 4187 ssize_t len = -ENXIO; 4188 4189 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4190 res = (struct ipr_resource_entry *)sdev->hostdata; 4191 if (res && ioa_cfg->sis64) 4192 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id); 4193 else if (res) 4194 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); 4195 4196 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4197 return len; 4198} 4199 4200static struct device_attribute ipr_device_id_attr = { 4201 .attr = { 4202 .name = "device_id", 4203 .mode = S_IRUGO, 4204 }, 4205 .show = ipr_show_device_id 4206}; 4207 4208/** 4209 * ipr_show_resource_type - Show the resource type for this device. 4210 * @dev: device struct 4211 * @attr: device attribute structure 4212 * @buf: buffer 4213 * 4214 * Return value: 4215 * number of bytes printed to buffer 4216 **/ 4217static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) 4218{ 4219 struct scsi_device *sdev = to_scsi_device(dev); 4220 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4221 struct ipr_resource_entry *res; 4222 unsigned long lock_flags = 0; 4223 ssize_t len = -ENXIO; 4224 4225 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4226 res = (struct ipr_resource_entry *)sdev->hostdata; 4227 4228 if (res) 4229 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type); 4230 4231 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4232 return len; 4233} 4234 4235static struct device_attribute ipr_resource_type_attr = { 4236 .attr = { 4237 .name = "resource_type", 4238 .mode = S_IRUGO, 4239 }, 4240 .show = ipr_show_resource_type 4241}; 4242 4243static struct device_attribute *ipr_dev_attrs[] = { 4244 &ipr_adapter_handle_attr, 4245 &ipr_resource_path_attr, 4246 &ipr_device_id_attr, 4247 &ipr_resource_type_attr, 4248 NULL, 4249}; 4250 4251/** 4252 * ipr_biosparam - Return the HSC mapping 4253 * @sdev: scsi device struct 4254 * @block_device: block device pointer 4255 * @capacity: capacity of the device 4256 * @parm: Array containing returned HSC values. 4257 * 4258 * This function generates the HSC parms that fdisk uses. 4259 * We want to make sure we return something that places partitions 4260 * on 4k boundaries for best performance with the IOA. 4261 * 4262 * Return value: 4263 * 0 on success 4264 **/ 4265static int ipr_biosparam(struct scsi_device *sdev, 4266 struct block_device *block_device, 4267 sector_t capacity, int *parm) 4268{ 4269 int heads, sectors; 4270 sector_t cylinders; 4271 4272 heads = 128; 4273 sectors = 32; 4274 4275 cylinders = capacity; 4276 sector_div(cylinders, (128 * 32)); 4277 4278 /* return result */ 4279 parm[0] = heads; 4280 parm[1] = sectors; 4281 parm[2] = cylinders; 4282 4283 return 0; 4284} 4285 4286/** 4287 * ipr_find_starget - Find target based on bus/target. 4288 * @starget: scsi target struct 4289 * 4290 * Return value: 4291 * resource entry pointer if found / NULL if not found 4292 **/ 4293static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4294{ 4295 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4296 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4297 struct ipr_resource_entry *res; 4298 4299 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4300 if ((res->bus == starget->channel) && 4301 (res->target == starget->id) && 4302 (res->lun == 0)) { 4303 return res; 4304 } 4305 } 4306 4307 return NULL; 4308} 4309 4310static struct ata_port_info sata_port_info; 4311 4312/** 4313 * ipr_target_alloc - Prepare for commands to a SCSI target 4314 * @starget: scsi target struct 4315 * 4316 * If the device is a SATA device, this function allocates an 4317 * ATA port with libata, else it does nothing. 4318 * 4319 * Return value: 4320 * 0 on success / non-0 on failure 4321 **/ 4322static int ipr_target_alloc(struct scsi_target *starget) 4323{ 4324 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4325 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4326 struct ipr_sata_port *sata_port; 4327 struct ata_port *ap; 4328 struct ipr_resource_entry *res; 4329 unsigned long lock_flags; 4330 4331 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4332 res = ipr_find_starget(starget); 4333 starget->hostdata = NULL; 4334 4335 if (res && ipr_is_gata(res)) { 4336 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4337 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4338 if (!sata_port) 4339 return -ENOMEM; 4340 4341 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4342 if (ap) { 4343 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4344 sata_port->ioa_cfg = ioa_cfg; 4345 sata_port->ap = ap; 4346 sata_port->res = res; 4347 4348 res->sata_port = sata_port; 4349 ap->private_data = sata_port; 4350 starget->hostdata = sata_port; 4351 } else { 4352 kfree(sata_port); 4353 return -ENOMEM; 4354 } 4355 } 4356 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4357 4358 return 0; 4359} 4360 4361/** 4362 * ipr_target_destroy - Destroy a SCSI target 4363 * @starget: scsi target struct 4364 * 4365 * If the device was a SATA device, this function frees the libata 4366 * ATA port, else it does nothing. 4367 * 4368 **/ 4369static void ipr_target_destroy(struct scsi_target *starget) 4370{ 4371 struct ipr_sata_port *sata_port = starget->hostdata; 4372 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4373 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4374 4375 if (ioa_cfg->sis64) { 4376 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4377 clear_bit(starget->id, ioa_cfg->array_ids); 4378 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4379 clear_bit(starget->id, ioa_cfg->vset_ids); 4380 else if (starget->channel == 0) 4381 clear_bit(starget->id, ioa_cfg->target_ids); 4382 } 4383 4384 if (sata_port) { 4385 starget->hostdata = NULL; 4386 ata_sas_port_destroy(sata_port->ap); 4387 kfree(sata_port); 4388 } 4389} 4390 4391/** 4392 * ipr_find_sdev - Find device based on bus/target/lun. 4393 * @sdev: scsi device struct 4394 * 4395 * Return value: 4396 * resource entry pointer if found / NULL if not found 4397 **/ 4398static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4399{ 4400 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4401 struct ipr_resource_entry *res; 4402 4403 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4404 if ((res->bus == sdev->channel) && 4405 (res->target == sdev->id) && 4406 (res->lun == sdev->lun)) 4407 return res; 4408 } 4409 4410 return NULL; 4411} 4412 4413/** 4414 * ipr_slave_destroy - Unconfigure a SCSI device 4415 * @sdev: scsi device struct 4416 * 4417 * Return value: 4418 * nothing 4419 **/ 4420static void ipr_slave_destroy(struct scsi_device *sdev) 4421{ 4422 struct ipr_resource_entry *res; 4423 struct ipr_ioa_cfg *ioa_cfg; 4424 unsigned long lock_flags = 0; 4425 4426 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4427 4428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4429 res = (struct ipr_resource_entry *) sdev->hostdata; 4430 if (res) { 4431 if (res->sata_port) 4432 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; 4433 sdev->hostdata = NULL; 4434 res->sdev = NULL; 4435 res->sata_port = NULL; 4436 } 4437 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4438} 4439 4440/** 4441 * ipr_slave_configure - Configure a SCSI device 4442 * @sdev: scsi device struct 4443 * 4444 * This function configures the specified scsi device. 4445 * 4446 * Return value: 4447 * 0 on success 4448 **/ 4449static int ipr_slave_configure(struct scsi_device *sdev) 4450{ 4451 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4452 struct ipr_resource_entry *res; 4453 struct ata_port *ap = NULL; 4454 unsigned long lock_flags = 0; 4455 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4456 4457 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4458 res = sdev->hostdata; 4459 if (res) { 4460 if (ipr_is_af_dasd_device(res)) 4461 sdev->type = TYPE_RAID; 4462 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4463 sdev->scsi_level = 4; 4464 sdev->no_uld_attach = 1; 4465 } 4466 if (ipr_is_vset_device(res)) { 4467 blk_queue_rq_timeout(sdev->request_queue, 4468 IPR_VSET_RW_TIMEOUT); 4469 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4470 } 4471 if (ipr_is_gata(res) && res->sata_port) 4472 ap = res->sata_port->ap; 4473 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4474 4475 if (ap) { 4476 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 4477 ata_sas_slave_configure(sdev, ap); 4478 } else 4479 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 4480 if (ioa_cfg->sis64) 4481 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4482 ipr_format_res_path(res->res_path, buffer, 4483 sizeof(buffer))); 4484 return 0; 4485 } 4486 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4487 return 0; 4488} 4489 4490/** 4491 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4492 * @sdev: scsi device struct 4493 * 4494 * This function initializes an ATA port so that future commands 4495 * sent through queuecommand will work. 4496 * 4497 * Return value: 4498 * 0 on success 4499 **/ 4500static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4501{ 4502 struct ipr_sata_port *sata_port = NULL; 4503 int rc = -ENXIO; 4504 4505 ENTER; 4506 if (sdev->sdev_target) 4507 sata_port = sdev->sdev_target->hostdata; 4508 if (sata_port) 4509 rc = ata_sas_port_init(sata_port->ap); 4510 if (rc) 4511 ipr_slave_destroy(sdev); 4512 4513 LEAVE; 4514 return rc; 4515} 4516 4517/** 4518 * ipr_slave_alloc - Prepare for commands to a device. 4519 * @sdev: scsi device struct 4520 * 4521 * This function saves a pointer to the resource entry 4522 * in the scsi device struct if the device exists. We 4523 * can then use this pointer in ipr_queuecommand when 4524 * handling new commands. 4525 * 4526 * Return value: 4527 * 0 on success / -ENXIO if device does not exist 4528 **/ 4529static int ipr_slave_alloc(struct scsi_device *sdev) 4530{ 4531 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4532 struct ipr_resource_entry *res; 4533 unsigned long lock_flags; 4534 int rc = -ENXIO; 4535 4536 sdev->hostdata = NULL; 4537 4538 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4539 4540 res = ipr_find_sdev(sdev); 4541 if (res) { 4542 res->sdev = sdev; 4543 res->add_to_ml = 0; 4544 res->in_erp = 0; 4545 sdev->hostdata = res; 4546 if (!ipr_is_naca_model(res)) 4547 res->needs_sync_complete = 1; 4548 rc = 0; 4549 if (ipr_is_gata(res)) { 4550 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4551 return ipr_ata_slave_alloc(sdev); 4552 } 4553 } 4554 4555 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4556 4557 return rc; 4558} 4559 4560/** 4561 * ipr_eh_host_reset - Reset the host adapter 4562 * @scsi_cmd: scsi command struct 4563 * 4564 * Return value: 4565 * SUCCESS / FAILED 4566 **/ 4567static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 4568{ 4569 struct ipr_ioa_cfg *ioa_cfg; 4570 int rc; 4571 4572 ENTER; 4573 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4574 4575 dev_err(&ioa_cfg->pdev->dev, 4576 "Adapter being reset as a result of error recovery.\n"); 4577 4578 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4579 ioa_cfg->sdt_state = GET_DUMP; 4580 4581 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 4582 4583 LEAVE; 4584 return rc; 4585} 4586 4587static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 4588{ 4589 int rc; 4590 4591 spin_lock_irq(cmd->device->host->host_lock); 4592 rc = __ipr_eh_host_reset(cmd); 4593 spin_unlock_irq(cmd->device->host->host_lock); 4594 4595 return rc; 4596} 4597 4598/** 4599 * ipr_device_reset - Reset the device 4600 * @ioa_cfg: ioa config struct 4601 * @res: resource entry struct 4602 * 4603 * This function issues a device reset to the affected device. 4604 * If the device is a SCSI device, a LUN reset will be sent 4605 * to the device first. If that does not work, a target reset 4606 * will be sent. If the device is a SATA device, a PHY reset will 4607 * be sent. 4608 * 4609 * Return value: 4610 * 0 on success / non-zero on failure 4611 **/ 4612static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 4613 struct ipr_resource_entry *res) 4614{ 4615 struct ipr_cmnd *ipr_cmd; 4616 struct ipr_ioarcb *ioarcb; 4617 struct ipr_cmd_pkt *cmd_pkt; 4618 struct ipr_ioarcb_ata_regs *regs; 4619 u32 ioasc; 4620 4621 ENTER; 4622 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4623 ioarcb = &ipr_cmd->ioarcb; 4624 cmd_pkt = &ioarcb->cmd_pkt; 4625 4626 if (ipr_cmd->ioa_cfg->sis64) { 4627 regs = &ipr_cmd->i.ata_ioadl.regs; 4628 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 4629 } else 4630 regs = &ioarcb->u.add_data.u.regs; 4631 4632 ioarcb->res_handle = res->res_handle; 4633 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4634 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4635 if (ipr_is_gata(res)) { 4636 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 4637 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 4638 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 4639 } 4640 4641 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4642 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4643 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4644 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { 4645 if (ipr_cmd->ioa_cfg->sis64) 4646 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 4647 sizeof(struct ipr_ioasa_gata)); 4648 else 4649 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 4650 sizeof(struct ipr_ioasa_gata)); 4651 } 4652 4653 LEAVE; 4654 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 4655} 4656 4657/** 4658 * ipr_sata_reset - Reset the SATA port 4659 * @link: SATA link to reset 4660 * @classes: class of the attached device 4661 * 4662 * This function issues a SATA phy reset to the affected ATA link. 4663 * 4664 * Return value: 4665 * 0 on success / non-zero on failure 4666 **/ 4667static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 4668 unsigned long deadline) 4669{ 4670 struct ipr_sata_port *sata_port = link->ap->private_data; 4671 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4672 struct ipr_resource_entry *res; 4673 unsigned long lock_flags = 0; 4674 int rc = -ENXIO; 4675 4676 ENTER; 4677 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4678 while(ioa_cfg->in_reset_reload) { 4679 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4680 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4682 } 4683 4684 res = sata_port->res; 4685 if (res) { 4686 rc = ipr_device_reset(ioa_cfg, res); 4687 *classes = res->ata_class; 4688 } 4689 4690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4691 LEAVE; 4692 return rc; 4693} 4694 4695/** 4696 * ipr_eh_dev_reset - Reset the device 4697 * @scsi_cmd: scsi command struct 4698 * 4699 * This function issues a device reset to the affected device. 4700 * A LUN reset will be sent to the device first. If that does 4701 * not work, a target reset will be sent. 4702 * 4703 * Return value: 4704 * SUCCESS / FAILED 4705 **/ 4706static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 4707{ 4708 struct ipr_cmnd *ipr_cmd; 4709 struct ipr_ioa_cfg *ioa_cfg; 4710 struct ipr_resource_entry *res; 4711 struct ata_port *ap; 4712 int rc = 0; 4713 4714 ENTER; 4715 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4716 res = scsi_cmd->device->hostdata; 4717 4718 if (!res) 4719 return FAILED; 4720 4721 /* 4722 * If we are currently going through reset/reload, return failed. This will force the 4723 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 4724 * reset to complete 4725 */ 4726 if (ioa_cfg->in_reset_reload) 4727 return FAILED; 4728 if (ioa_cfg->ioa_is_dead) 4729 return FAILED; 4730 4731 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4732 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4733 if (ipr_cmd->scsi_cmd) 4734 ipr_cmd->done = ipr_scsi_eh_done; 4735 if (ipr_cmd->qc) 4736 ipr_cmd->done = ipr_sata_eh_done; 4737 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 4738 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 4739 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 4740 } 4741 } 4742 } 4743 4744 res->resetting_device = 1; 4745 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 4746 4747 if (ipr_is_gata(res) && res->sata_port) { 4748 ap = res->sata_port->ap; 4749 spin_unlock_irq(scsi_cmd->device->host->host_lock); 4750 ata_std_error_handler(ap); 4751 spin_lock_irq(scsi_cmd->device->host->host_lock); 4752 4753 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4754 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4755 rc = -EIO; 4756 break; 4757 } 4758 } 4759 } else 4760 rc = ipr_device_reset(ioa_cfg, res); 4761 res->resetting_device = 0; 4762 4763 LEAVE; 4764 return (rc ? FAILED : SUCCESS); 4765} 4766 4767static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 4768{ 4769 int rc; 4770 4771 spin_lock_irq(cmd->device->host->host_lock); 4772 rc = __ipr_eh_dev_reset(cmd); 4773 spin_unlock_irq(cmd->device->host->host_lock); 4774 4775 return rc; 4776} 4777 4778/** 4779 * ipr_bus_reset_done - Op done function for bus reset. 4780 * @ipr_cmd: ipr command struct 4781 * 4782 * This function is the op done function for a bus reset 4783 * 4784 * Return value: 4785 * none 4786 **/ 4787static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 4788{ 4789 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4790 struct ipr_resource_entry *res; 4791 4792 ENTER; 4793 if (!ioa_cfg->sis64) 4794 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4795 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 4796 scsi_report_bus_reset(ioa_cfg->host, res->bus); 4797 break; 4798 } 4799 } 4800 4801 /* 4802 * If abort has not completed, indicate the reset has, else call the 4803 * abort's done function to wake the sleeping eh thread 4804 */ 4805 if (ipr_cmd->sibling->sibling) 4806 ipr_cmd->sibling->sibling = NULL; 4807 else 4808 ipr_cmd->sibling->done(ipr_cmd->sibling); 4809 4810 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4811 LEAVE; 4812} 4813 4814/** 4815 * ipr_abort_timeout - An abort task has timed out 4816 * @ipr_cmd: ipr command struct 4817 * 4818 * This function handles when an abort task times out. If this 4819 * happens we issue a bus reset since we have resources tied 4820 * up that must be freed before returning to the midlayer. 4821 * 4822 * Return value: 4823 * none 4824 **/ 4825static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4826{ 4827 struct ipr_cmnd *reset_cmd; 4828 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4829 struct ipr_cmd_pkt *cmd_pkt; 4830 unsigned long lock_flags = 0; 4831 4832 ENTER; 4833 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4834 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4835 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4836 return; 4837 } 4838 4839 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4840 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4841 ipr_cmd->sibling = reset_cmd; 4842 reset_cmd->sibling = ipr_cmd; 4843 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4844 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4845 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4846 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4847 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4848 4849 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4850 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4851 LEAVE; 4852} 4853 4854/** 4855 * ipr_cancel_op - Cancel specified op 4856 * @scsi_cmd: scsi command struct 4857 * 4858 * This function cancels specified op. 4859 * 4860 * Return value: 4861 * SUCCESS / FAILED 4862 **/ 4863static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4864{ 4865 struct ipr_cmnd *ipr_cmd; 4866 struct ipr_ioa_cfg *ioa_cfg; 4867 struct ipr_resource_entry *res; 4868 struct ipr_cmd_pkt *cmd_pkt; 4869 u32 ioasc; 4870 int op_found = 0; 4871 4872 ENTER; 4873 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4874 res = scsi_cmd->device->hostdata; 4875 4876 /* If we are currently going through reset/reload, return failed. 4877 * This will force the mid-layer to call ipr_eh_host_reset, 4878 * which will then go to sleep and wait for the reset to complete 4879 */ 4880 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4881 return FAILED; 4882 if (!res || !ipr_is_gscsi(res)) 4883 return FAILED; 4884 4885 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4886 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4887 ipr_cmd->done = ipr_scsi_eh_done; 4888 op_found = 1; 4889 break; 4890 } 4891 } 4892 4893 if (!op_found) 4894 return SUCCESS; 4895 4896 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4897 ipr_cmd->ioarcb.res_handle = res->res_handle; 4898 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4899 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4900 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4901 ipr_cmd->u.sdev = scsi_cmd->device; 4902 4903 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4904 scsi_cmd->cmnd[0]); 4905 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4906 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4907 4908 /* 4909 * If the abort task timed out and we sent a bus reset, we will get 4910 * one the following responses to the abort 4911 */ 4912 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4913 ioasc = 0; 4914 ipr_trace; 4915 } 4916 4917 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4918 if (!ipr_is_naca_model(res)) 4919 res->needs_sync_complete = 1; 4920 4921 LEAVE; 4922 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4923} 4924 4925/** 4926 * ipr_eh_abort - Abort a single op 4927 * @scsi_cmd: scsi command struct 4928 * 4929 * Return value: 4930 * SUCCESS / FAILED 4931 **/ 4932static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4933{ 4934 unsigned long flags; 4935 int rc; 4936 4937 ENTER; 4938 4939 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4940 rc = ipr_cancel_op(scsi_cmd); 4941 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4942 4943 LEAVE; 4944 return rc; 4945} 4946 4947/** 4948 * ipr_handle_other_interrupt - Handle "other" interrupts 4949 * @ioa_cfg: ioa config struct 4950 * @int_reg: interrupt register 4951 * 4952 * Return value: 4953 * IRQ_NONE / IRQ_HANDLED 4954 **/ 4955static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4956 u32 int_reg) 4957{ 4958 irqreturn_t rc = IRQ_HANDLED; 4959 u32 int_mask_reg; 4960 4961 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 4962 int_reg &= ~int_mask_reg; 4963 4964 /* If an interrupt on the adapter did not occur, ignore it. 4965 * Or in the case of SIS 64, check for a stage change interrupt. 4966 */ 4967 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) { 4968 if (ioa_cfg->sis64) { 4969 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 4970 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4971 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 4972 4973 /* clear stage change */ 4974 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 4975 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 4976 list_del(&ioa_cfg->reset_cmd->queue); 4977 del_timer(&ioa_cfg->reset_cmd->timer); 4978 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4979 return IRQ_HANDLED; 4980 } 4981 } 4982 4983 return IRQ_NONE; 4984 } 4985 4986 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 4987 /* Mask the interrupt */ 4988 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 4989 4990 /* Clear the interrupt */ 4991 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 4992 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4993 4994 list_del(&ioa_cfg->reset_cmd->queue); 4995 del_timer(&ioa_cfg->reset_cmd->timer); 4996 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 4997 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { 4998 if (ipr_debug && printk_ratelimit()) 4999 dev_err(&ioa_cfg->pdev->dev, 5000 "Spurious interrupt detected. 0x%08X\n", int_reg); 5001 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 5002 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5003 return IRQ_NONE; 5004 } else { 5005 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 5006 ioa_cfg->ioa_unit_checked = 1; 5007 else 5008 dev_err(&ioa_cfg->pdev->dev, 5009 "Permanent IOA failure. 0x%08X\n", int_reg); 5010 5011 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5012 ioa_cfg->sdt_state = GET_DUMP; 5013 5014 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 5015 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5016 } 5017 5018 return rc; 5019} 5020 5021/** 5022 * ipr_isr_eh - Interrupt service routine error handler 5023 * @ioa_cfg: ioa config struct 5024 * @msg: message to log 5025 * 5026 * Return value: 5027 * none 5028 **/ 5029static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) 5030{ 5031 ioa_cfg->errors_logged++; 5032 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); 5033 5034 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5035 ioa_cfg->sdt_state = GET_DUMP; 5036 5037 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5038} 5039 5040/** 5041 * ipr_isr - Interrupt service routine 5042 * @irq: irq number 5043 * @devp: pointer to ioa config struct 5044 * 5045 * Return value: 5046 * IRQ_NONE / IRQ_HANDLED 5047 **/ 5048static irqreturn_t ipr_isr(int irq, void *devp) 5049{ 5050 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 5051 unsigned long lock_flags = 0; 5052 u32 int_reg = 0; 5053 u32 ioasc; 5054 u16 cmd_index; 5055 int num_hrrq = 0; 5056 int irq_none = 0; 5057 struct ipr_cmnd *ipr_cmd; 5058 irqreturn_t rc = IRQ_NONE; 5059 5060 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5061 5062 /* If interrupts are disabled, ignore the interrupt */ 5063 if (!ioa_cfg->allow_interrupts) { 5064 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5065 return IRQ_NONE; 5066 } 5067 5068 while (1) { 5069 ipr_cmd = NULL; 5070 5071 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 5072 ioa_cfg->toggle_bit) { 5073 5074 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 5075 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 5076 5077 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 5078 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); 5079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5080 return IRQ_HANDLED; 5081 } 5082 5083 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 5084 5085 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5086 5087 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 5088 5089 list_del(&ipr_cmd->queue); 5090 del_timer(&ipr_cmd->timer); 5091 ipr_cmd->done(ipr_cmd); 5092 5093 rc = IRQ_HANDLED; 5094 5095 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 5096 ioa_cfg->hrrq_curr++; 5097 } else { 5098 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 5099 ioa_cfg->toggle_bit ^= 1u; 5100 } 5101 } 5102 5103 if (ipr_cmd != NULL) { 5104 /* Clear the PCI interrupt */ 5105 do { 5106 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 5107 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5108 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 5109 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 5110 5111 if (int_reg & IPR_PCII_HRRQ_UPDATED) { 5112 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); 5113 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5114 return IRQ_HANDLED; 5115 } 5116 5117 } else if (rc == IRQ_NONE && irq_none == 0) { 5118 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5119 irq_none++; 5120 } else 5121 break; 5122 } 5123 5124 if (unlikely(rc == IRQ_NONE)) 5125 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 5126 5127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5128 return rc; 5129} 5130 5131/** 5132 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 5133 * @ioa_cfg: ioa config struct 5134 * @ipr_cmd: ipr command struct 5135 * 5136 * Return value: 5137 * 0 on success / -1 on failure 5138 **/ 5139static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 5140 struct ipr_cmnd *ipr_cmd) 5141{ 5142 int i, nseg; 5143 struct scatterlist *sg; 5144 u32 length; 5145 u32 ioadl_flags = 0; 5146 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5147 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5148 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5149 5150 length = scsi_bufflen(scsi_cmd); 5151 if (!length) 5152 return 0; 5153 5154 nseg = scsi_dma_map(scsi_cmd); 5155 if (nseg < 0) { 5156 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5157 return -1; 5158 } 5159 5160 ipr_cmd->dma_use_sg = nseg; 5161 5162 ioarcb->data_transfer_length = cpu_to_be32(length); 5163 ioarcb->ioadl_len = 5164 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5165 5166 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5167 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5168 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5169 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5170 ioadl_flags = IPR_IOADL_FLAGS_READ; 5171 5172 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5173 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5174 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5175 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5176 } 5177 5178 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5179 return 0; 5180} 5181 5182/** 5183 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5184 * @ioa_cfg: ioa config struct 5185 * @ipr_cmd: ipr command struct 5186 * 5187 * Return value: 5188 * 0 on success / -1 on failure 5189 **/ 5190static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5191 struct ipr_cmnd *ipr_cmd) 5192{ 5193 int i, nseg; 5194 struct scatterlist *sg; 5195 u32 length; 5196 u32 ioadl_flags = 0; 5197 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5198 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5199 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5200 5201 length = scsi_bufflen(scsi_cmd); 5202 if (!length) 5203 return 0; 5204 5205 nseg = scsi_dma_map(scsi_cmd); 5206 if (nseg < 0) { 5207 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5208 return -1; 5209 } 5210 5211 ipr_cmd->dma_use_sg = nseg; 5212 5213 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5214 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5215 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5216 ioarcb->data_transfer_length = cpu_to_be32(length); 5217 ioarcb->ioadl_len = 5218 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5219 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5220 ioadl_flags = IPR_IOADL_FLAGS_READ; 5221 ioarcb->read_data_transfer_length = cpu_to_be32(length); 5222 ioarcb->read_ioadl_len = 5223 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5224 } 5225 5226 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 5227 ioadl = ioarcb->u.add_data.u.ioadl; 5228 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 5229 offsetof(struct ipr_ioarcb, u.add_data)); 5230 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5231 } 5232 5233 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5234 ioadl[i].flags_and_data_len = 5235 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5236 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 5237 } 5238 5239 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5240 return 0; 5241} 5242 5243/** 5244 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 5245 * @scsi_cmd: scsi command struct 5246 * 5247 * Return value: 5248 * task attributes 5249 **/ 5250static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 5251{ 5252 u8 tag[2]; 5253 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 5254 5255 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 5256 switch (tag[0]) { 5257 case MSG_SIMPLE_TAG: 5258 rc = IPR_FLAGS_LO_SIMPLE_TASK; 5259 break; 5260 case MSG_HEAD_TAG: 5261 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 5262 break; 5263 case MSG_ORDERED_TAG: 5264 rc = IPR_FLAGS_LO_ORDERED_TASK; 5265 break; 5266 }; 5267 } 5268 5269 return rc; 5270} 5271 5272/** 5273 * ipr_erp_done - Process completion of ERP for a device 5274 * @ipr_cmd: ipr command struct 5275 * 5276 * This function copies the sense buffer into the scsi_cmd 5277 * struct and pushes the scsi_done function. 5278 * 5279 * Return value: 5280 * nothing 5281 **/ 5282static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 5283{ 5284 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5285 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5286 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5287 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5288 5289 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5290 scsi_cmd->result |= (DID_ERROR << 16); 5291 scmd_printk(KERN_ERR, scsi_cmd, 5292 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 5293 } else { 5294 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 5295 SCSI_SENSE_BUFFERSIZE); 5296 } 5297 5298 if (res) { 5299 if (!ipr_is_naca_model(res)) 5300 res->needs_sync_complete = 1; 5301 res->in_erp = 0; 5302 } 5303 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5304 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5305 scsi_cmd->scsi_done(scsi_cmd); 5306} 5307 5308/** 5309 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 5310 * @ipr_cmd: ipr command struct 5311 * 5312 * Return value: 5313 * none 5314 **/ 5315static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 5316{ 5317 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5318 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5319 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5320 5321 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 5322 ioarcb->data_transfer_length = 0; 5323 ioarcb->read_data_transfer_length = 0; 5324 ioarcb->ioadl_len = 0; 5325 ioarcb->read_ioadl_len = 0; 5326 ioasa->hdr.ioasc = 0; 5327 ioasa->hdr.residual_data_len = 0; 5328 5329 if (ipr_cmd->ioa_cfg->sis64) 5330 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5331 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 5332 else { 5333 ioarcb->write_ioadl_addr = 5334 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 5335 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5336 } 5337} 5338 5339/** 5340 * ipr_erp_request_sense - Send request sense to a device 5341 * @ipr_cmd: ipr command struct 5342 * 5343 * This function sends a request sense to a device as a result 5344 * of a check condition. 5345 * 5346 * Return value: 5347 * nothing 5348 **/ 5349static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 5350{ 5351 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5352 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5353 5354 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5355 ipr_erp_done(ipr_cmd); 5356 return; 5357 } 5358 5359 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5360 5361 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 5362 cmd_pkt->cdb[0] = REQUEST_SENSE; 5363 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 5364 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 5365 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5366 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 5367 5368 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 5369 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 5370 5371 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 5372 IPR_REQUEST_SENSE_TIMEOUT * 2); 5373} 5374 5375/** 5376 * ipr_erp_cancel_all - Send cancel all to a device 5377 * @ipr_cmd: ipr command struct 5378 * 5379 * This function sends a cancel all to a device to clear the 5380 * queue. If we are running TCQ on the device, QERR is set to 1, 5381 * which means all outstanding ops have been dropped on the floor. 5382 * Cancel all will return them to us. 5383 * 5384 * Return value: 5385 * nothing 5386 **/ 5387static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 5388{ 5389 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5390 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5391 struct ipr_cmd_pkt *cmd_pkt; 5392 5393 res->in_erp = 1; 5394 5395 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5396 5397 if (!scsi_get_tag_type(scsi_cmd->device)) { 5398 ipr_erp_request_sense(ipr_cmd); 5399 return; 5400 } 5401 5402 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5403 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5404 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5405 5406 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 5407 IPR_CANCEL_ALL_TIMEOUT); 5408} 5409 5410/** 5411 * ipr_dump_ioasa - Dump contents of IOASA 5412 * @ioa_cfg: ioa config struct 5413 * @ipr_cmd: ipr command struct 5414 * @res: resource entry struct 5415 * 5416 * This function is invoked by the interrupt handler when ops 5417 * fail. It will log the IOASA if appropriate. Only called 5418 * for GPDD ops. 5419 * 5420 * Return value: 5421 * none 5422 **/ 5423static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 5424 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 5425{ 5426 int i; 5427 u16 data_len; 5428 u32 ioasc, fd_ioasc; 5429 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5430 __be32 *ioasa_data = (__be32 *)ioasa; 5431 int error_index; 5432 5433 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; 5434 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; 5435 5436 if (0 == ioasc) 5437 return; 5438 5439 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 5440 return; 5441 5442 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 5443 error_index = ipr_get_error(fd_ioasc); 5444 else 5445 error_index = ipr_get_error(ioasc); 5446 5447 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 5448 /* Don't log an error if the IOA already logged one */ 5449 if (ioasa->hdr.ilid != 0) 5450 return; 5451 5452 if (!ipr_is_gscsi(res)) 5453 return; 5454 5455 if (ipr_error_table[error_index].log_ioasa == 0) 5456 return; 5457 } 5458 5459 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 5460 5461 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); 5462 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) 5463 data_len = sizeof(struct ipr_ioasa64); 5464 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) 5465 data_len = sizeof(struct ipr_ioasa); 5466 5467 ipr_err("IOASA Dump:\n"); 5468 5469 for (i = 0; i < data_len / 4; i += 4) { 5470 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 5471 be32_to_cpu(ioasa_data[i]), 5472 be32_to_cpu(ioasa_data[i+1]), 5473 be32_to_cpu(ioasa_data[i+2]), 5474 be32_to_cpu(ioasa_data[i+3])); 5475 } 5476} 5477 5478/** 5479 * ipr_gen_sense - Generate SCSI sense data from an IOASA 5480 * @ioasa: IOASA 5481 * @sense_buf: sense data buffer 5482 * 5483 * Return value: 5484 * none 5485 **/ 5486static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 5487{ 5488 u32 failing_lba; 5489 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 5490 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 5491 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5492 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); 5493 5494 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 5495 5496 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 5497 return; 5498 5499 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 5500 5501 if (ipr_is_vset_device(res) && 5502 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 5503 ioasa->u.vset.failing_lba_hi != 0) { 5504 sense_buf[0] = 0x72; 5505 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 5506 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 5507 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 5508 5509 sense_buf[7] = 12; 5510 sense_buf[8] = 0; 5511 sense_buf[9] = 0x0A; 5512 sense_buf[10] = 0x80; 5513 5514 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 5515 5516 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 5517 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 5518 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 5519 sense_buf[15] = failing_lba & 0x000000ff; 5520 5521 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5522 5523 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 5524 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 5525 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 5526 sense_buf[19] = failing_lba & 0x000000ff; 5527 } else { 5528 sense_buf[0] = 0x70; 5529 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 5530 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 5531 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 5532 5533 /* Illegal request */ 5534 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 5535 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 5536 sense_buf[7] = 10; /* additional length */ 5537 5538 /* IOARCB was in error */ 5539 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 5540 sense_buf[15] = 0xC0; 5541 else /* Parameter data was invalid */ 5542 sense_buf[15] = 0x80; 5543 5544 sense_buf[16] = 5545 ((IPR_FIELD_POINTER_MASK & 5546 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; 5547 sense_buf[17] = 5548 (IPR_FIELD_POINTER_MASK & 5549 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; 5550 } else { 5551 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 5552 if (ipr_is_vset_device(res)) 5553 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5554 else 5555 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 5556 5557 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 5558 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 5559 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 5560 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 5561 sense_buf[6] = failing_lba & 0x000000ff; 5562 } 5563 5564 sense_buf[7] = 6; /* additional length */ 5565 } 5566 } 5567} 5568 5569/** 5570 * ipr_get_autosense - Copy autosense data to sense buffer 5571 * @ipr_cmd: ipr command struct 5572 * 5573 * This function copies the autosense buffer to the buffer 5574 * in the scsi_cmd, if there is autosense available. 5575 * 5576 * Return value: 5577 * 1 if autosense was available / 0 if not 5578 **/ 5579static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 5580{ 5581 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5582 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 5583 5584 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 5585 return 0; 5586 5587 if (ipr_cmd->ioa_cfg->sis64) 5588 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, 5589 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), 5590 SCSI_SENSE_BUFFERSIZE)); 5591 else 5592 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 5593 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 5594 SCSI_SENSE_BUFFERSIZE)); 5595 return 1; 5596} 5597 5598/** 5599 * ipr_erp_start - Process an error response for a SCSI op 5600 * @ioa_cfg: ioa config struct 5601 * @ipr_cmd: ipr command struct 5602 * 5603 * This function determines whether or not to initiate ERP 5604 * on the affected device. 5605 * 5606 * Return value: 5607 * nothing 5608 **/ 5609static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 5610 struct ipr_cmnd *ipr_cmd) 5611{ 5612 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5613 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5614 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5615 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 5616 5617 if (!res) { 5618 ipr_scsi_eh_done(ipr_cmd); 5619 return; 5620 } 5621 5622 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 5623 ipr_gen_sense(ipr_cmd); 5624 5625 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5626 5627 switch (masked_ioasc) { 5628 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 5629 if (ipr_is_naca_model(res)) 5630 scsi_cmd->result |= (DID_ABORT << 16); 5631 else 5632 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5633 break; 5634 case IPR_IOASC_IR_RESOURCE_HANDLE: 5635 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 5636 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5637 break; 5638 case IPR_IOASC_HW_SEL_TIMEOUT: 5639 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5640 if (!ipr_is_naca_model(res)) 5641 res->needs_sync_complete = 1; 5642 break; 5643 case IPR_IOASC_SYNC_REQUIRED: 5644 if (!res->in_erp) 5645 res->needs_sync_complete = 1; 5646 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5647 break; 5648 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 5649 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 5650 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 5651 break; 5652 case IPR_IOASC_BUS_WAS_RESET: 5653 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 5654 /* 5655 * Report the bus reset and ask for a retry. The device 5656 * will give CC/UA the next command. 5657 */ 5658 if (!res->resetting_device) 5659 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 5660 scsi_cmd->result |= (DID_ERROR << 16); 5661 if (!ipr_is_naca_model(res)) 5662 res->needs_sync_complete = 1; 5663 break; 5664 case IPR_IOASC_HW_DEV_BUS_STATUS: 5665 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 5666 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 5667 if (!ipr_get_autosense(ipr_cmd)) { 5668 if (!ipr_is_naca_model(res)) { 5669 ipr_erp_cancel_all(ipr_cmd); 5670 return; 5671 } 5672 } 5673 } 5674 if (!ipr_is_naca_model(res)) 5675 res->needs_sync_complete = 1; 5676 break; 5677 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 5678 break; 5679 default: 5680 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5681 scsi_cmd->result |= (DID_ERROR << 16); 5682 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 5683 res->needs_sync_complete = 1; 5684 break; 5685 } 5686 5687 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5688 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5689 scsi_cmd->scsi_done(scsi_cmd); 5690} 5691 5692/** 5693 * ipr_scsi_done - mid-layer done function 5694 * @ipr_cmd: ipr command struct 5695 * 5696 * This function is invoked by the interrupt handler for 5697 * ops generated by the SCSI mid-layer 5698 * 5699 * Return value: 5700 * none 5701 **/ 5702static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 5703{ 5704 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5705 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5706 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5707 5708 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); 5709 5710 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 5711 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5712 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5713 scsi_cmd->scsi_done(scsi_cmd); 5714 } else 5715 ipr_erp_start(ioa_cfg, ipr_cmd); 5716} 5717 5718/** 5719 * ipr_queuecommand - Queue a mid-layer request 5720 * @scsi_cmd: scsi command struct 5721 * @done: done function 5722 * 5723 * This function queues a request generated by the mid-layer. 5724 * 5725 * Return value: 5726 * 0 on success 5727 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 5728 * SCSI_MLQUEUE_HOST_BUSY if host is busy 5729 **/ 5730static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd, 5731 void (*done) (struct scsi_cmnd *)) 5732{ 5733 struct ipr_ioa_cfg *ioa_cfg; 5734 struct ipr_resource_entry *res; 5735 struct ipr_ioarcb *ioarcb; 5736 struct ipr_cmnd *ipr_cmd; 5737 int rc = 0; 5738 5739 scsi_cmd->scsi_done = done; 5740 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5741 res = scsi_cmd->device->hostdata; 5742 scsi_cmd->result = (DID_OK << 16); 5743 5744 /* 5745 * We are currently blocking all devices due to a host reset 5746 * We have told the host to stop giving us new requests, but 5747 * ERP ops don't count. FIXME 5748 */ 5749 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 5750 return SCSI_MLQUEUE_HOST_BUSY; 5751 5752 /* 5753 * FIXME - Create scsi_set_host_offline interface 5754 * and the ioa_is_dead check can be removed 5755 */ 5756 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 5757 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 5758 scsi_cmd->result = (DID_NO_CONNECT << 16); 5759 scsi_cmd->scsi_done(scsi_cmd); 5760 return 0; 5761 } 5762 5763 if (ipr_is_gata(res) && res->sata_port) 5764 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap); 5765 5766 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5767 ioarcb = &ipr_cmd->ioarcb; 5768 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5769 5770 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 5771 ipr_cmd->scsi_cmd = scsi_cmd; 5772 ioarcb->res_handle = res->res_handle; 5773 ipr_cmd->done = ipr_scsi_done; 5774 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5775 5776 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 5777 if (scsi_cmd->underflow == 0) 5778 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5779 5780 if (res->needs_sync_complete) { 5781 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 5782 res->needs_sync_complete = 0; 5783 } 5784 5785 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5786 if (ipr_is_gscsi(res)) 5787 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 5788 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 5789 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 5790 } 5791 5792 if (scsi_cmd->cmnd[0] >= 0xC0 && 5793 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 5794 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5795 5796 if (likely(rc == 0)) { 5797 if (ioa_cfg->sis64) 5798 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 5799 else 5800 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 5801 } 5802 5803 if (likely(rc == 0)) { 5804 mb(); 5805 ipr_send_command(ipr_cmd); 5806 } else { 5807 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5808 return SCSI_MLQUEUE_HOST_BUSY; 5809 } 5810 5811 return 0; 5812} 5813 5814static DEF_SCSI_QCMD(ipr_queuecommand) 5815 5816/** 5817 * ipr_ioctl - IOCTL handler 5818 * @sdev: scsi device struct 5819 * @cmd: IOCTL cmd 5820 * @arg: IOCTL arg 5821 * 5822 * Return value: 5823 * 0 on success / other on failure 5824 **/ 5825static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 5826{ 5827 struct ipr_resource_entry *res; 5828 5829 res = (struct ipr_resource_entry *)sdev->hostdata; 5830 if (res && ipr_is_gata(res)) { 5831 if (cmd == HDIO_GET_IDENTITY) 5832 return -ENOTTY; 5833 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 5834 } 5835 5836 return -EINVAL; 5837} 5838 5839/** 5840 * ipr_info - Get information about the card/driver 5841 * @scsi_host: scsi host struct 5842 * 5843 * Return value: 5844 * pointer to buffer with description string 5845 **/ 5846static const char * ipr_ioa_info(struct Scsi_Host *host) 5847{ 5848 static char buffer[512]; 5849 struct ipr_ioa_cfg *ioa_cfg; 5850 unsigned long lock_flags = 0; 5851 5852 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 5853 5854 spin_lock_irqsave(host->host_lock, lock_flags); 5855 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 5856 spin_unlock_irqrestore(host->host_lock, lock_flags); 5857 5858 return buffer; 5859} 5860 5861static struct scsi_host_template driver_template = { 5862 .module = THIS_MODULE, 5863 .name = "IPR", 5864 .info = ipr_ioa_info, 5865 .ioctl = ipr_ioctl, 5866 .queuecommand = ipr_queuecommand, 5867 .eh_abort_handler = ipr_eh_abort, 5868 .eh_device_reset_handler = ipr_eh_dev_reset, 5869 .eh_host_reset_handler = ipr_eh_host_reset, 5870 .slave_alloc = ipr_slave_alloc, 5871 .slave_configure = ipr_slave_configure, 5872 .slave_destroy = ipr_slave_destroy, 5873 .target_alloc = ipr_target_alloc, 5874 .target_destroy = ipr_target_destroy, 5875 .change_queue_depth = ipr_change_queue_depth, 5876 .change_queue_type = ipr_change_queue_type, 5877 .bios_param = ipr_biosparam, 5878 .can_queue = IPR_MAX_COMMANDS, 5879 .this_id = -1, 5880 .sg_tablesize = IPR_MAX_SGLIST, 5881 .max_sectors = IPR_IOA_MAX_SECTORS, 5882 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5883 .use_clustering = ENABLE_CLUSTERING, 5884 .shost_attrs = ipr_ioa_attrs, 5885 .sdev_attrs = ipr_dev_attrs, 5886 .proc_name = IPR_NAME 5887}; 5888 5889/** 5890 * ipr_ata_phy_reset - libata phy_reset handler 5891 * @ap: ata port to reset 5892 * 5893 **/ 5894static void ipr_ata_phy_reset(struct ata_port *ap) 5895{ 5896 unsigned long flags; 5897 struct ipr_sata_port *sata_port = ap->private_data; 5898 struct ipr_resource_entry *res = sata_port->res; 5899 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5900 int rc; 5901 5902 ENTER; 5903 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5904 while(ioa_cfg->in_reset_reload) { 5905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5906 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5907 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5908 } 5909 5910 if (!ioa_cfg->allow_cmds) 5911 goto out_unlock; 5912 5913 rc = ipr_device_reset(ioa_cfg, res); 5914 5915 if (rc) { 5916 ap->link.device[0].class = ATA_DEV_NONE; 5917 goto out_unlock; 5918 } 5919 5920 ap->link.device[0].class = res->ata_class; 5921 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 5922 ap->link.device[0].class = ATA_DEV_NONE; 5923 5924out_unlock: 5925 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5926 LEAVE; 5927} 5928 5929/** 5930 * ipr_ata_post_internal - Cleanup after an internal command 5931 * @qc: ATA queued command 5932 * 5933 * Return value: 5934 * none 5935 **/ 5936static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5937{ 5938 struct ipr_sata_port *sata_port = qc->ap->private_data; 5939 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5940 struct ipr_cmnd *ipr_cmd; 5941 unsigned long flags; 5942 5943 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5944 while(ioa_cfg->in_reset_reload) { 5945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5946 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5947 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5948 } 5949 5950 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5951 if (ipr_cmd->qc == qc) { 5952 ipr_device_reset(ioa_cfg, sata_port->res); 5953 break; 5954 } 5955 } 5956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5957} 5958 5959/** 5960 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 5961 * @regs: destination 5962 * @tf: source ATA taskfile 5963 * 5964 * Return value: 5965 * none 5966 **/ 5967static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 5968 struct ata_taskfile *tf) 5969{ 5970 regs->feature = tf->feature; 5971 regs->nsect = tf->nsect; 5972 regs->lbal = tf->lbal; 5973 regs->lbam = tf->lbam; 5974 regs->lbah = tf->lbah; 5975 regs->device = tf->device; 5976 regs->command = tf->command; 5977 regs->hob_feature = tf->hob_feature; 5978 regs->hob_nsect = tf->hob_nsect; 5979 regs->hob_lbal = tf->hob_lbal; 5980 regs->hob_lbam = tf->hob_lbam; 5981 regs->hob_lbah = tf->hob_lbah; 5982 regs->ctl = tf->ctl; 5983} 5984 5985/** 5986 * ipr_sata_done - done function for SATA commands 5987 * @ipr_cmd: ipr command struct 5988 * 5989 * This function is invoked by the interrupt handler for 5990 * ops generated by the SCSI mid-layer to SATA devices 5991 * 5992 * Return value: 5993 * none 5994 **/ 5995static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 5996{ 5997 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5998 struct ata_queued_cmd *qc = ipr_cmd->qc; 5999 struct ipr_sata_port *sata_port = qc->ap->private_data; 6000 struct ipr_resource_entry *res = sata_port->res; 6001 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6002 6003 if (ipr_cmd->ioa_cfg->sis64) 6004 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 6005 sizeof(struct ipr_ioasa_gata)); 6006 else 6007 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 6008 sizeof(struct ipr_ioasa_gata)); 6009 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 6010 6011 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 6012 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 6013 6014 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 6015 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); 6016 else 6017 qc->err_mask |= ac_err_mask(sata_port->ioasa.status); 6018 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6019 ata_qc_complete(qc); 6020} 6021 6022/** 6023 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 6024 * @ipr_cmd: ipr command struct 6025 * @qc: ATA queued command 6026 * 6027 **/ 6028static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 6029 struct ata_queued_cmd *qc) 6030{ 6031 u32 ioadl_flags = 0; 6032 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6033 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 6034 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 6035 int len = qc->nbytes; 6036 struct scatterlist *sg; 6037 unsigned int si; 6038 dma_addr_t dma_addr = ipr_cmd->dma_addr; 6039 6040 if (len == 0) 6041 return; 6042 6043 if (qc->dma_dir == DMA_TO_DEVICE) { 6044 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6045 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6046 } else if (qc->dma_dir == DMA_FROM_DEVICE) 6047 ioadl_flags = IPR_IOADL_FLAGS_READ; 6048 6049 ioarcb->data_transfer_length = cpu_to_be32(len); 6050 ioarcb->ioadl_len = 6051 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 6052 ioarcb->u.sis64_addr_data.data_ioadl_addr = 6053 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); 6054 6055 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6056 ioadl64->flags = cpu_to_be32(ioadl_flags); 6057 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 6058 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 6059 6060 last_ioadl64 = ioadl64; 6061 ioadl64++; 6062 } 6063 6064 if (likely(last_ioadl64)) 6065 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6066} 6067 6068/** 6069 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 6070 * @ipr_cmd: ipr command struct 6071 * @qc: ATA queued command 6072 * 6073 **/ 6074static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 6075 struct ata_queued_cmd *qc) 6076{ 6077 u32 ioadl_flags = 0; 6078 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6079 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 6080 struct ipr_ioadl_desc *last_ioadl = NULL; 6081 int len = qc->nbytes; 6082 struct scatterlist *sg; 6083 unsigned int si; 6084 6085 if (len == 0) 6086 return; 6087 6088 if (qc->dma_dir == DMA_TO_DEVICE) { 6089 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6090 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6091 ioarcb->data_transfer_length = cpu_to_be32(len); 6092 ioarcb->ioadl_len = 6093 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6094 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 6095 ioadl_flags = IPR_IOADL_FLAGS_READ; 6096 ioarcb->read_data_transfer_length = cpu_to_be32(len); 6097 ioarcb->read_ioadl_len = 6098 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6099 } 6100 6101 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6102 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 6103 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 6104 6105 last_ioadl = ioadl; 6106 ioadl++; 6107 } 6108 6109 if (likely(last_ioadl)) 6110 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6111} 6112 6113/** 6114 * ipr_qc_issue - Issue a SATA qc to a device 6115 * @qc: queued command 6116 * 6117 * Return value: 6118 * 0 if success 6119 **/ 6120static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 6121{ 6122 struct ata_port *ap = qc->ap; 6123 struct ipr_sata_port *sata_port = ap->private_data; 6124 struct ipr_resource_entry *res = sata_port->res; 6125 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6126 struct ipr_cmnd *ipr_cmd; 6127 struct ipr_ioarcb *ioarcb; 6128 struct ipr_ioarcb_ata_regs *regs; 6129 6130 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 6131 return AC_ERR_SYSTEM; 6132 6133 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6134 ioarcb = &ipr_cmd->ioarcb; 6135 6136 if (ioa_cfg->sis64) { 6137 regs = &ipr_cmd->i.ata_ioadl.regs; 6138 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 6139 } else 6140 regs = &ioarcb->u.add_data.u.regs; 6141 6142 memset(regs, 0, sizeof(*regs)); 6143 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 6144 6145 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6146 ipr_cmd->qc = qc; 6147 ipr_cmd->done = ipr_sata_done; 6148 ipr_cmd->ioarcb.res_handle = res->res_handle; 6149 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 6150 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 6151 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 6152 ipr_cmd->dma_use_sg = qc->n_elem; 6153 6154 if (ioa_cfg->sis64) 6155 ipr_build_ata_ioadl64(ipr_cmd, qc); 6156 else 6157 ipr_build_ata_ioadl(ipr_cmd, qc); 6158 6159 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 6160 ipr_copy_sata_tf(regs, &qc->tf); 6161 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 6162 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 6163 6164 switch (qc->tf.protocol) { 6165 case ATA_PROT_NODATA: 6166 case ATA_PROT_PIO: 6167 break; 6168 6169 case ATA_PROT_DMA: 6170 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6171 break; 6172 6173 case ATAPI_PROT_PIO: 6174 case ATAPI_PROT_NODATA: 6175 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6176 break; 6177 6178 case ATAPI_PROT_DMA: 6179 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6180 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6181 break; 6182 6183 default: 6184 WARN_ON(1); 6185 return AC_ERR_INVALID; 6186 } 6187 6188 mb(); 6189 6190 ipr_send_command(ipr_cmd); 6191 6192 return 0; 6193} 6194 6195/** 6196 * ipr_qc_fill_rtf - Read result TF 6197 * @qc: ATA queued command 6198 * 6199 * Return value: 6200 * true 6201 **/ 6202static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 6203{ 6204 struct ipr_sata_port *sata_port = qc->ap->private_data; 6205 struct ipr_ioasa_gata *g = &sata_port->ioasa; 6206 struct ata_taskfile *tf = &qc->result_tf; 6207 6208 tf->feature = g->error; 6209 tf->nsect = g->nsect; 6210 tf->lbal = g->lbal; 6211 tf->lbam = g->lbam; 6212 tf->lbah = g->lbah; 6213 tf->device = g->device; 6214 tf->command = g->status; 6215 tf->hob_nsect = g->hob_nsect; 6216 tf->hob_lbal = g->hob_lbal; 6217 tf->hob_lbam = g->hob_lbam; 6218 tf->hob_lbah = g->hob_lbah; 6219 tf->ctl = g->alt_status; 6220 6221 return true; 6222} 6223 6224static struct ata_port_operations ipr_sata_ops = { 6225 .phy_reset = ipr_ata_phy_reset, 6226 .hardreset = ipr_sata_reset, 6227 .post_internal_cmd = ipr_ata_post_internal, 6228 .qc_prep = ata_noop_qc_prep, 6229 .qc_issue = ipr_qc_issue, 6230 .qc_fill_rtf = ipr_qc_fill_rtf, 6231 .port_start = ata_sas_port_start, 6232 .port_stop = ata_sas_port_stop 6233}; 6234 6235static struct ata_port_info sata_port_info = { 6236 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA, 6237 .pio_mask = ATA_PIO4_ONLY, 6238 .mwdma_mask = ATA_MWDMA2, 6239 .udma_mask = ATA_UDMA6, 6240 .port_ops = &ipr_sata_ops 6241}; 6242 6243#ifdef CONFIG_PPC_PSERIES 6244static const u16 ipr_blocked_processors[] = { 6245 PV_NORTHSTAR, 6246 PV_PULSAR, 6247 PV_POWER4, 6248 PV_ICESTAR, 6249 PV_SSTAR, 6250 PV_POWER4p, 6251 PV_630, 6252 PV_630p 6253}; 6254 6255/** 6256 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 6257 * @ioa_cfg: ioa cfg struct 6258 * 6259 * Adapters that use Gemstone revision < 3.1 do not work reliably on 6260 * certain pSeries hardware. This function determines if the given 6261 * adapter is in one of these confgurations or not. 6262 * 6263 * Return value: 6264 * 1 if adapter is not supported / 0 if adapter is supported 6265 **/ 6266static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 6267{ 6268 int i; 6269 6270 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 6271 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 6272 if (__is_processor(ipr_blocked_processors[i])) 6273 return 1; 6274 } 6275 } 6276 return 0; 6277} 6278#else 6279#define ipr_invalid_adapter(ioa_cfg) 0 6280#endif 6281 6282/** 6283 * ipr_ioa_bringdown_done - IOA bring down completion. 6284 * @ipr_cmd: ipr command struct 6285 * 6286 * This function processes the completion of an adapter bring down. 6287 * It wakes any reset sleepers. 6288 * 6289 * Return value: 6290 * IPR_RC_JOB_RETURN 6291 **/ 6292static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 6293{ 6294 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6295 6296 ENTER; 6297 ioa_cfg->in_reset_reload = 0; 6298 ioa_cfg->reset_retries = 0; 6299 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6300 wake_up_all(&ioa_cfg->reset_wait_q); 6301 6302 spin_unlock_irq(ioa_cfg->host->host_lock); 6303 scsi_unblock_requests(ioa_cfg->host); 6304 spin_lock_irq(ioa_cfg->host->host_lock); 6305 LEAVE; 6306 6307 return IPR_RC_JOB_RETURN; 6308} 6309 6310/** 6311 * ipr_ioa_reset_done - IOA reset completion. 6312 * @ipr_cmd: ipr command struct 6313 * 6314 * This function processes the completion of an adapter reset. 6315 * It schedules any necessary mid-layer add/removes and 6316 * wakes any reset sleepers. 6317 * 6318 * Return value: 6319 * IPR_RC_JOB_RETURN 6320 **/ 6321static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 6322{ 6323 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6324 struct ipr_resource_entry *res; 6325 struct ipr_hostrcb *hostrcb, *temp; 6326 int i = 0; 6327 6328 ENTER; 6329 ioa_cfg->in_reset_reload = 0; 6330 ioa_cfg->allow_cmds = 1; 6331 ioa_cfg->reset_cmd = NULL; 6332 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 6333 6334 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 6335 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 6336 ipr_trace; 6337 break; 6338 } 6339 } 6340 schedule_work(&ioa_cfg->work_q); 6341 6342 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 6343 list_del(&hostrcb->queue); 6344 if (i++ < IPR_NUM_LOG_HCAMS) 6345 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 6346 else 6347 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 6348 } 6349 6350 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 6351 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 6352 6353 ioa_cfg->reset_retries = 0; 6354 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6355 wake_up_all(&ioa_cfg->reset_wait_q); 6356 6357 spin_unlock(ioa_cfg->host->host_lock); 6358 scsi_unblock_requests(ioa_cfg->host); 6359 spin_lock(ioa_cfg->host->host_lock); 6360 6361 if (!ioa_cfg->allow_cmds) 6362 scsi_block_requests(ioa_cfg->host); 6363 6364 LEAVE; 6365 return IPR_RC_JOB_RETURN; 6366} 6367 6368/** 6369 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 6370 * @supported_dev: supported device struct 6371 * @vpids: vendor product id struct 6372 * 6373 * Return value: 6374 * none 6375 **/ 6376static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 6377 struct ipr_std_inq_vpids *vpids) 6378{ 6379 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 6380 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 6381 supported_dev->num_records = 1; 6382 supported_dev->data_length = 6383 cpu_to_be16(sizeof(struct ipr_supported_device)); 6384 supported_dev->reserved = 0; 6385} 6386 6387/** 6388 * ipr_set_supported_devs - Send Set Supported Devices for a device 6389 * @ipr_cmd: ipr command struct 6390 * 6391 * This function sends a Set Supported Devices to the adapter 6392 * 6393 * Return value: 6394 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6395 **/ 6396static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 6397{ 6398 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6399 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 6400 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6401 struct ipr_resource_entry *res = ipr_cmd->u.res; 6402 6403 ipr_cmd->job_step = ipr_ioa_reset_done; 6404 6405 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 6406 if (!ipr_is_scsi_disk(res)) 6407 continue; 6408 6409 ipr_cmd->u.res = res; 6410 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 6411 6412 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6413 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6414 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6415 6416 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 6417 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 6418 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 6419 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 6420 6421 ipr_init_ioadl(ipr_cmd, 6422 ioa_cfg->vpd_cbs_dma + 6423 offsetof(struct ipr_misc_cbs, supp_dev), 6424 sizeof(struct ipr_supported_device), 6425 IPR_IOADL_FLAGS_WRITE_LAST); 6426 6427 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6428 IPR_SET_SUP_DEVICE_TIMEOUT); 6429 6430 if (!ioa_cfg->sis64) 6431 ipr_cmd->job_step = ipr_set_supported_devs; 6432 return IPR_RC_JOB_RETURN; 6433 } 6434 6435 return IPR_RC_JOB_CONTINUE; 6436} 6437 6438/** 6439 * ipr_get_mode_page - Locate specified mode page 6440 * @mode_pages: mode page buffer 6441 * @page_code: page code to find 6442 * @len: minimum required length for mode page 6443 * 6444 * Return value: 6445 * pointer to mode page / NULL on failure 6446 **/ 6447static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 6448 u32 page_code, u32 len) 6449{ 6450 struct ipr_mode_page_hdr *mode_hdr; 6451 u32 page_length; 6452 u32 length; 6453 6454 if (!mode_pages || (mode_pages->hdr.length == 0)) 6455 return NULL; 6456 6457 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 6458 mode_hdr = (struct ipr_mode_page_hdr *) 6459 (mode_pages->data + mode_pages->hdr.block_desc_len); 6460 6461 while (length) { 6462 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 6463 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 6464 return mode_hdr; 6465 break; 6466 } else { 6467 page_length = (sizeof(struct ipr_mode_page_hdr) + 6468 mode_hdr->page_length); 6469 length -= page_length; 6470 mode_hdr = (struct ipr_mode_page_hdr *) 6471 ((unsigned long)mode_hdr + page_length); 6472 } 6473 } 6474 return NULL; 6475} 6476 6477/** 6478 * ipr_check_term_power - Check for term power errors 6479 * @ioa_cfg: ioa config struct 6480 * @mode_pages: IOAFP mode pages buffer 6481 * 6482 * Check the IOAFP's mode page 28 for term power errors 6483 * 6484 * Return value: 6485 * nothing 6486 **/ 6487static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 6488 struct ipr_mode_pages *mode_pages) 6489{ 6490 int i; 6491 int entry_length; 6492 struct ipr_dev_bus_entry *bus; 6493 struct ipr_mode_page28 *mode_page; 6494 6495 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6496 sizeof(struct ipr_mode_page28)); 6497 6498 entry_length = mode_page->entry_length; 6499 6500 bus = mode_page->bus; 6501 6502 for (i = 0; i < mode_page->num_entries; i++) { 6503 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 6504 dev_err(&ioa_cfg->pdev->dev, 6505 "Term power is absent on scsi bus %d\n", 6506 bus->res_addr.bus); 6507 } 6508 6509 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 6510 } 6511} 6512 6513/** 6514 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 6515 * @ioa_cfg: ioa config struct 6516 * 6517 * Looks through the config table checking for SES devices. If 6518 * the SES device is in the SES table indicating a maximum SCSI 6519 * bus speed, the speed is limited for the bus. 6520 * 6521 * Return value: 6522 * none 6523 **/ 6524static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 6525{ 6526 u32 max_xfer_rate; 6527 int i; 6528 6529 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 6530 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 6531 ioa_cfg->bus_attr[i].bus_width); 6532 6533 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 6534 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 6535 } 6536} 6537 6538/** 6539 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 6540 * @ioa_cfg: ioa config struct 6541 * @mode_pages: mode page 28 buffer 6542 * 6543 * Updates mode page 28 based on driver configuration 6544 * 6545 * Return value: 6546 * none 6547 **/ 6548static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 6549 struct ipr_mode_pages *mode_pages) 6550{ 6551 int i, entry_length; 6552 struct ipr_dev_bus_entry *bus; 6553 struct ipr_bus_attributes *bus_attr; 6554 struct ipr_mode_page28 *mode_page; 6555 6556 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6557 sizeof(struct ipr_mode_page28)); 6558 6559 entry_length = mode_page->entry_length; 6560 6561 /* Loop for each device bus entry */ 6562 for (i = 0, bus = mode_page->bus; 6563 i < mode_page->num_entries; 6564 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 6565 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 6566 dev_err(&ioa_cfg->pdev->dev, 6567 "Invalid resource address reported: 0x%08X\n", 6568 IPR_GET_PHYS_LOC(bus->res_addr)); 6569 continue; 6570 } 6571 6572 bus_attr = &ioa_cfg->bus_attr[i]; 6573 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 6574 bus->bus_width = bus_attr->bus_width; 6575 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 6576 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 6577 if (bus_attr->qas_enabled) 6578 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 6579 else 6580 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 6581 } 6582} 6583 6584/** 6585 * ipr_build_mode_select - Build a mode select command 6586 * @ipr_cmd: ipr command struct 6587 * @res_handle: resource handle to send command to 6588 * @parm: Byte 2 of Mode Sense command 6589 * @dma_addr: DMA buffer address 6590 * @xfer_len: data transfer length 6591 * 6592 * Return value: 6593 * none 6594 **/ 6595static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 6596 __be32 res_handle, u8 parm, 6597 dma_addr_t dma_addr, u8 xfer_len) 6598{ 6599 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6600 6601 ioarcb->res_handle = res_handle; 6602 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6603 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6604 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 6605 ioarcb->cmd_pkt.cdb[1] = parm; 6606 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6607 6608 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 6609} 6610 6611/** 6612 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 6613 * @ipr_cmd: ipr command struct 6614 * 6615 * This function sets up the SCSI bus attributes and sends 6616 * a Mode Select for Page 28 to activate them. 6617 * 6618 * Return value: 6619 * IPR_RC_JOB_RETURN 6620 **/ 6621static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 6622{ 6623 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6624 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6625 int length; 6626 6627 ENTER; 6628 ipr_scsi_bus_speed_limit(ioa_cfg); 6629 ipr_check_term_power(ioa_cfg, mode_pages); 6630 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 6631 length = mode_pages->hdr.length + 1; 6632 mode_pages->hdr.length = 0; 6633 6634 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6635 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6636 length); 6637 6638 ipr_cmd->job_step = ipr_set_supported_devs; 6639 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6640 struct ipr_resource_entry, queue); 6641 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6642 6643 LEAVE; 6644 return IPR_RC_JOB_RETURN; 6645} 6646 6647/** 6648 * ipr_build_mode_sense - Builds a mode sense command 6649 * @ipr_cmd: ipr command struct 6650 * @res: resource entry struct 6651 * @parm: Byte 2 of mode sense command 6652 * @dma_addr: DMA address of mode sense buffer 6653 * @xfer_len: Size of DMA buffer 6654 * 6655 * Return value: 6656 * none 6657 **/ 6658static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 6659 __be32 res_handle, 6660 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 6661{ 6662 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6663 6664 ioarcb->res_handle = res_handle; 6665 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 6666 ioarcb->cmd_pkt.cdb[2] = parm; 6667 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6668 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6669 6670 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6671} 6672 6673/** 6674 * ipr_reset_cmd_failed - Handle failure of IOA reset command 6675 * @ipr_cmd: ipr command struct 6676 * 6677 * This function handles the failure of an IOA bringup command. 6678 * 6679 * Return value: 6680 * IPR_RC_JOB_RETURN 6681 **/ 6682static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 6683{ 6684 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6685 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6686 6687 dev_err(&ioa_cfg->pdev->dev, 6688 "0x%02X failed with IOASC: 0x%08X\n", 6689 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 6690 6691 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6692 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6693 return IPR_RC_JOB_RETURN; 6694} 6695 6696/** 6697 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 6698 * @ipr_cmd: ipr command struct 6699 * 6700 * This function handles the failure of a Mode Sense to the IOAFP. 6701 * Some adapters do not handle all mode pages. 6702 * 6703 * Return value: 6704 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6705 **/ 6706static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 6707{ 6708 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6709 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6710 6711 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6712 ipr_cmd->job_step = ipr_set_supported_devs; 6713 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6714 struct ipr_resource_entry, queue); 6715 return IPR_RC_JOB_CONTINUE; 6716 } 6717 6718 return ipr_reset_cmd_failed(ipr_cmd); 6719} 6720 6721/** 6722 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 6723 * @ipr_cmd: ipr command struct 6724 * 6725 * This function send a Page 28 mode sense to the IOA to 6726 * retrieve SCSI bus attributes. 6727 * 6728 * Return value: 6729 * IPR_RC_JOB_RETURN 6730 **/ 6731static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 6732{ 6733 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6734 6735 ENTER; 6736 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6737 0x28, ioa_cfg->vpd_cbs_dma + 6738 offsetof(struct ipr_misc_cbs, mode_pages), 6739 sizeof(struct ipr_mode_pages)); 6740 6741 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 6742 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 6743 6744 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6745 6746 LEAVE; 6747 return IPR_RC_JOB_RETURN; 6748} 6749 6750/** 6751 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 6752 * @ipr_cmd: ipr command struct 6753 * 6754 * This function enables dual IOA RAID support if possible. 6755 * 6756 * Return value: 6757 * IPR_RC_JOB_RETURN 6758 **/ 6759static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 6760{ 6761 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6762 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6763 struct ipr_mode_page24 *mode_page; 6764 int length; 6765 6766 ENTER; 6767 mode_page = ipr_get_mode_page(mode_pages, 0x24, 6768 sizeof(struct ipr_mode_page24)); 6769 6770 if (mode_page) 6771 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 6772 6773 length = mode_pages->hdr.length + 1; 6774 mode_pages->hdr.length = 0; 6775 6776 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6777 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6778 length); 6779 6780 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6781 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6782 6783 LEAVE; 6784 return IPR_RC_JOB_RETURN; 6785} 6786 6787/** 6788 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 6789 * @ipr_cmd: ipr command struct 6790 * 6791 * This function handles the failure of a Mode Sense to the IOAFP. 6792 * Some adapters do not handle all mode pages. 6793 * 6794 * Return value: 6795 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6796 **/ 6797static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 6798{ 6799 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6800 6801 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6802 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6803 return IPR_RC_JOB_CONTINUE; 6804 } 6805 6806 return ipr_reset_cmd_failed(ipr_cmd); 6807} 6808 6809/** 6810 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 6811 * @ipr_cmd: ipr command struct 6812 * 6813 * This function send a mode sense to the IOA to retrieve 6814 * the IOA Advanced Function Control mode page. 6815 * 6816 * Return value: 6817 * IPR_RC_JOB_RETURN 6818 **/ 6819static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 6820{ 6821 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6822 6823 ENTER; 6824 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6825 0x24, ioa_cfg->vpd_cbs_dma + 6826 offsetof(struct ipr_misc_cbs, mode_pages), 6827 sizeof(struct ipr_mode_pages)); 6828 6829 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 6830 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 6831 6832 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6833 6834 LEAVE; 6835 return IPR_RC_JOB_RETURN; 6836} 6837 6838/** 6839 * ipr_init_res_table - Initialize the resource table 6840 * @ipr_cmd: ipr command struct 6841 * 6842 * This function looks through the existing resource table, comparing 6843 * it with the config table. This function will take care of old/new 6844 * devices and schedule adding/removing them from the mid-layer 6845 * as appropriate. 6846 * 6847 * Return value: 6848 * IPR_RC_JOB_CONTINUE 6849 **/ 6850static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 6851{ 6852 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6853 struct ipr_resource_entry *res, *temp; 6854 struct ipr_config_table_entry_wrapper cfgtew; 6855 int entries, found, flag, i; 6856 LIST_HEAD(old_res); 6857 6858 ENTER; 6859 if (ioa_cfg->sis64) 6860 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 6861 else 6862 flag = ioa_cfg->u.cfg_table->hdr.flags; 6863 6864 if (flag & IPR_UCODE_DOWNLOAD_REQ) 6865 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 6866 6867 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6868 list_move_tail(&res->queue, &old_res); 6869 6870 if (ioa_cfg->sis64) 6871 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); 6872 else 6873 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 6874 6875 for (i = 0; i < entries; i++) { 6876 if (ioa_cfg->sis64) 6877 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 6878 else 6879 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 6880 found = 0; 6881 6882 list_for_each_entry_safe(res, temp, &old_res, queue) { 6883 if (ipr_is_same_device(res, &cfgtew)) { 6884 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6885 found = 1; 6886 break; 6887 } 6888 } 6889 6890 if (!found) { 6891 if (list_empty(&ioa_cfg->free_res_q)) { 6892 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6893 break; 6894 } 6895 6896 found = 1; 6897 res = list_entry(ioa_cfg->free_res_q.next, 6898 struct ipr_resource_entry, queue); 6899 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6900 ipr_init_res_entry(res, &cfgtew); 6901 res->add_to_ml = 1; 6902 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) 6903 res->sdev->allow_restart = 1; 6904 6905 if (found) 6906 ipr_update_res_entry(res, &cfgtew); 6907 } 6908 6909 list_for_each_entry_safe(res, temp, &old_res, queue) { 6910 if (res->sdev) { 6911 res->del_from_ml = 1; 6912 res->res_handle = IPR_INVALID_RES_HANDLE; 6913 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6914 } 6915 } 6916 6917 list_for_each_entry_safe(res, temp, &old_res, queue) { 6918 ipr_clear_res_target(res); 6919 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6920 } 6921 6922 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6923 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6924 else 6925 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6926 6927 LEAVE; 6928 return IPR_RC_JOB_CONTINUE; 6929} 6930 6931/** 6932 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6933 * @ipr_cmd: ipr command struct 6934 * 6935 * This function sends a Query IOA Configuration command 6936 * to the adapter to retrieve the IOA configuration table. 6937 * 6938 * Return value: 6939 * IPR_RC_JOB_RETURN 6940 **/ 6941static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6942{ 6943 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6944 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6945 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6946 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6947 6948 ENTER; 6949 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6950 ioa_cfg->dual_raid = 1; 6951 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6952 ucode_vpd->major_release, ucode_vpd->card_type, 6953 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6954 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6955 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6956 6957 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 6958 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; 6959 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 6960 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 6961 6962 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 6963 IPR_IOADL_FLAGS_READ_LAST); 6964 6965 ipr_cmd->job_step = ipr_init_res_table; 6966 6967 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6968 6969 LEAVE; 6970 return IPR_RC_JOB_RETURN; 6971} 6972 6973/** 6974 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 6975 * @ipr_cmd: ipr command struct 6976 * 6977 * This utility function sends an inquiry to the adapter. 6978 * 6979 * Return value: 6980 * none 6981 **/ 6982static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 6983 dma_addr_t dma_addr, u8 xfer_len) 6984{ 6985 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6986 6987 ENTER; 6988 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6989 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6990 6991 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 6992 ioarcb->cmd_pkt.cdb[1] = flags; 6993 ioarcb->cmd_pkt.cdb[2] = page; 6994 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6995 6996 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6997 6998 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6999 LEAVE; 7000} 7001 7002/** 7003 * ipr_inquiry_page_supported - Is the given inquiry page supported 7004 * @page0: inquiry page 0 buffer 7005 * @page: page code. 7006 * 7007 * This function determines if the specified inquiry page is supported. 7008 * 7009 * Return value: 7010 * 1 if page is supported / 0 if not 7011 **/ 7012static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 7013{ 7014 int i; 7015 7016 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 7017 if (page0->page[i] == page) 7018 return 1; 7019 7020 return 0; 7021} 7022 7023/** 7024 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 7025 * @ipr_cmd: ipr command struct 7026 * 7027 * This function sends a Page 0xD0 inquiry to the adapter 7028 * to retrieve adapter capabilities. 7029 * 7030 * Return value: 7031 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7032 **/ 7033static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 7034{ 7035 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7036 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 7037 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 7038 7039 ENTER; 7040 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 7041 memset(cap, 0, sizeof(*cap)); 7042 7043 if (ipr_inquiry_page_supported(page0, 0xD0)) { 7044 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 7045 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 7046 sizeof(struct ipr_inquiry_cap)); 7047 return IPR_RC_JOB_RETURN; 7048 } 7049 7050 LEAVE; 7051 return IPR_RC_JOB_CONTINUE; 7052} 7053 7054/** 7055 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 7056 * @ipr_cmd: ipr command struct 7057 * 7058 * This function sends a Page 3 inquiry to the adapter 7059 * to retrieve software VPD information. 7060 * 7061 * Return value: 7062 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7063 **/ 7064static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 7065{ 7066 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7067 7068 ENTER; 7069 7070 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 7071 7072 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 7073 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 7074 sizeof(struct ipr_inquiry_page3)); 7075 7076 LEAVE; 7077 return IPR_RC_JOB_RETURN; 7078} 7079 7080/** 7081 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 7082 * @ipr_cmd: ipr command struct 7083 * 7084 * This function sends a Page 0 inquiry to the adapter 7085 * to retrieve supported inquiry pages. 7086 * 7087 * Return value: 7088 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7089 **/ 7090static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 7091{ 7092 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7093 char type[5]; 7094 7095 ENTER; 7096 7097 /* Grab the type out of the VPD and store it away */ 7098 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 7099 type[4] = '\0'; 7100 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 7101 7102 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 7103 7104 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 7105 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 7106 sizeof(struct ipr_inquiry_page0)); 7107 7108 LEAVE; 7109 return IPR_RC_JOB_RETURN; 7110} 7111 7112/** 7113 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 7114 * @ipr_cmd: ipr command struct 7115 * 7116 * This function sends a standard inquiry to the adapter. 7117 * 7118 * Return value: 7119 * IPR_RC_JOB_RETURN 7120 **/ 7121static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 7122{ 7123 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7124 7125 ENTER; 7126 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 7127 7128 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 7129 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 7130 sizeof(struct ipr_ioa_vpd)); 7131 7132 LEAVE; 7133 return IPR_RC_JOB_RETURN; 7134} 7135 7136/** 7137 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 7138 * @ipr_cmd: ipr command struct 7139 * 7140 * This function send an Identify Host Request Response Queue 7141 * command to establish the HRRQ with the adapter. 7142 * 7143 * Return value: 7144 * IPR_RC_JOB_RETURN 7145 **/ 7146static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 7147{ 7148 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7149 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7150 7151 ENTER; 7152 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 7153 7154 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 7155 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7156 7157 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7158 if (ioa_cfg->sis64) 7159 ioarcb->cmd_pkt.cdb[1] = 0x1; 7160 ioarcb->cmd_pkt.cdb[2] = 7161 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; 7162 ioarcb->cmd_pkt.cdb[3] = 7163 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; 7164 ioarcb->cmd_pkt.cdb[4] = 7165 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; 7166 ioarcb->cmd_pkt.cdb[5] = 7167 ((u64) ioa_cfg->host_rrq_dma) & 0xff; 7168 ioarcb->cmd_pkt.cdb[7] = 7169 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 7170 ioarcb->cmd_pkt.cdb[8] = 7171 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 7172 7173 if (ioa_cfg->sis64) { 7174 ioarcb->cmd_pkt.cdb[10] = 7175 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; 7176 ioarcb->cmd_pkt.cdb[11] = 7177 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; 7178 ioarcb->cmd_pkt.cdb[12] = 7179 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; 7180 ioarcb->cmd_pkt.cdb[13] = 7181 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; 7182 } 7183 7184 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 7185 7186 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7187 7188 LEAVE; 7189 return IPR_RC_JOB_RETURN; 7190} 7191 7192/** 7193 * ipr_reset_timer_done - Adapter reset timer function 7194 * @ipr_cmd: ipr command struct 7195 * 7196 * Description: This function is used in adapter reset processing 7197 * for timing events. If the reset_cmd pointer in the IOA 7198 * config struct is not this adapter's we are doing nested 7199 * resets and fail_all_ops will take care of freeing the 7200 * command block. 7201 * 7202 * Return value: 7203 * none 7204 **/ 7205static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 7206{ 7207 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7208 unsigned long lock_flags = 0; 7209 7210 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7211 7212 if (ioa_cfg->reset_cmd == ipr_cmd) { 7213 list_del(&ipr_cmd->queue); 7214 ipr_cmd->done(ipr_cmd); 7215 } 7216 7217 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7218} 7219 7220/** 7221 * ipr_reset_start_timer - Start a timer for adapter reset job 7222 * @ipr_cmd: ipr command struct 7223 * @timeout: timeout value 7224 * 7225 * Description: This function is used in adapter reset processing 7226 * for timing events. If the reset_cmd pointer in the IOA 7227 * config struct is not this adapter's we are doing nested 7228 * resets and fail_all_ops will take care of freeing the 7229 * command block. 7230 * 7231 * Return value: 7232 * none 7233 **/ 7234static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 7235 unsigned long timeout) 7236{ 7237 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7238 ipr_cmd->done = ipr_reset_ioa_job; 7239 7240 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7241 ipr_cmd->timer.expires = jiffies + timeout; 7242 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 7243 add_timer(&ipr_cmd->timer); 7244} 7245 7246/** 7247 * ipr_init_ioa_mem - Initialize ioa_cfg control block 7248 * @ioa_cfg: ioa cfg struct 7249 * 7250 * Return value: 7251 * nothing 7252 **/ 7253static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 7254{ 7255 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 7256 7257 /* Initialize Host RRQ pointers */ 7258 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 7259 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 7260 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 7261 ioa_cfg->toggle_bit = 1; 7262 7263 /* Zero out config table */ 7264 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 7265} 7266 7267/** 7268 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 7269 * @ipr_cmd: ipr command struct 7270 * 7271 * Return value: 7272 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7273 **/ 7274static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 7275{ 7276 unsigned long stage, stage_time; 7277 u32 feedback; 7278 volatile u32 int_reg; 7279 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7280 u64 maskval = 0; 7281 7282 feedback = readl(ioa_cfg->regs.init_feedback_reg); 7283 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 7284 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 7285 7286 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 7287 7288 /* sanity check the stage_time value */ 7289 if (stage_time == 0) 7290 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; 7291 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 7292 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 7293 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 7294 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 7295 7296 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 7297 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 7298 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7299 stage_time = ioa_cfg->transop_timeout; 7300 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7301 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 7302 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 7303 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7304 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7305 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7306 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 7307 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 7308 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7309 return IPR_RC_JOB_CONTINUE; 7310 } 7311 } 7312 7313 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7314 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 7315 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7316 ipr_cmd->done = ipr_reset_ioa_job; 7317 add_timer(&ipr_cmd->timer); 7318 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7319 7320 return IPR_RC_JOB_RETURN; 7321} 7322 7323/** 7324 * ipr_reset_enable_ioa - Enable the IOA following a reset. 7325 * @ipr_cmd: ipr command struct 7326 * 7327 * This function reinitializes some control blocks and 7328 * enables destructive diagnostics on the adapter. 7329 * 7330 * Return value: 7331 * IPR_RC_JOB_RETURN 7332 **/ 7333static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 7334{ 7335 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7336 volatile u32 int_reg; 7337 volatile u64 maskval; 7338 7339 ENTER; 7340 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7341 ipr_init_ioa_mem(ioa_cfg); 7342 7343 ioa_cfg->allow_interrupts = 1; 7344 if (ioa_cfg->sis64) { 7345 /* Set the adapter to the correct endian mode. */ 7346 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 7347 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 7348 } 7349 7350 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 7351 7352 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7353 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 7354 ioa_cfg->regs.clr_interrupt_mask_reg32); 7355 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7356 return IPR_RC_JOB_CONTINUE; 7357 } 7358 7359 /* Enable destructive diagnostics on IOA */ 7360 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 7361 7362 if (ioa_cfg->sis64) { 7363 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7364 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; 7365 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); 7366 } else 7367 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 7368 7369 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7370 7371 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 7372 7373 if (ioa_cfg->sis64) { 7374 ipr_cmd->job_step = ipr_reset_next_stage; 7375 return IPR_RC_JOB_CONTINUE; 7376 } 7377 7378 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7379 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 7380 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7381 ipr_cmd->done = ipr_reset_ioa_job; 7382 add_timer(&ipr_cmd->timer); 7383 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7384 7385 LEAVE; 7386 return IPR_RC_JOB_RETURN; 7387} 7388 7389/** 7390 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 7391 * @ipr_cmd: ipr command struct 7392 * 7393 * This function is invoked when an adapter dump has run out 7394 * of processing time. 7395 * 7396 * Return value: 7397 * IPR_RC_JOB_CONTINUE 7398 **/ 7399static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 7400{ 7401 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7402 7403 if (ioa_cfg->sdt_state == GET_DUMP) 7404 ioa_cfg->sdt_state = ABORT_DUMP; 7405 7406 ipr_cmd->job_step = ipr_reset_alert; 7407 7408 return IPR_RC_JOB_CONTINUE; 7409} 7410 7411/** 7412 * ipr_unit_check_no_data - Log a unit check/no data error log 7413 * @ioa_cfg: ioa config struct 7414 * 7415 * Logs an error indicating the adapter unit checked, but for some 7416 * reason, we were unable to fetch the unit check buffer. 7417 * 7418 * Return value: 7419 * nothing 7420 **/ 7421static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 7422{ 7423 ioa_cfg->errors_logged++; 7424 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 7425} 7426 7427/** 7428 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 7429 * @ioa_cfg: ioa config struct 7430 * 7431 * Fetches the unit check buffer from the adapter by clocking the data 7432 * through the mailbox register. 7433 * 7434 * Return value: 7435 * nothing 7436 **/ 7437static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 7438{ 7439 unsigned long mailbox; 7440 struct ipr_hostrcb *hostrcb; 7441 struct ipr_uc_sdt sdt; 7442 int rc, length; 7443 u32 ioasc; 7444 7445 mailbox = readl(ioa_cfg->ioa_mailbox); 7446 7447 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 7448 ipr_unit_check_no_data(ioa_cfg); 7449 return; 7450 } 7451 7452 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 7453 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 7454 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 7455 7456 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 7457 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 7458 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 7459 ipr_unit_check_no_data(ioa_cfg); 7460 return; 7461 } 7462 7463 /* Find length of the first sdt entry (UC buffer) */ 7464 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 7465 length = be32_to_cpu(sdt.entry[0].end_token); 7466 else 7467 length = (be32_to_cpu(sdt.entry[0].end_token) - 7468 be32_to_cpu(sdt.entry[0].start_token)) & 7469 IPR_FMT2_MBX_ADDR_MASK; 7470 7471 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 7472 struct ipr_hostrcb, queue); 7473 list_del(&hostrcb->queue); 7474 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 7475 7476 rc = ipr_get_ldump_data_section(ioa_cfg, 7477 be32_to_cpu(sdt.entry[0].start_token), 7478 (__be32 *)&hostrcb->hcam, 7479 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 7480 7481 if (!rc) { 7482 ipr_handle_log_data(ioa_cfg, hostrcb); 7483 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 7484 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 7485 ioa_cfg->sdt_state == GET_DUMP) 7486 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7487 } else 7488 ipr_unit_check_no_data(ioa_cfg); 7489 7490 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 7491} 7492 7493/** 7494 * ipr_reset_get_unit_check_job - Call to get the unit check buffer. 7495 * @ipr_cmd: ipr command struct 7496 * 7497 * Description: This function will call to get the unit check buffer. 7498 * 7499 * Return value: 7500 * IPR_RC_JOB_RETURN 7501 **/ 7502static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) 7503{ 7504 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7505 7506 ENTER; 7507 ioa_cfg->ioa_unit_checked = 0; 7508 ipr_get_unit_check_buffer(ioa_cfg); 7509 ipr_cmd->job_step = ipr_reset_alert; 7510 ipr_reset_start_timer(ipr_cmd, 0); 7511 7512 LEAVE; 7513 return IPR_RC_JOB_RETURN; 7514} 7515 7516/** 7517 * ipr_reset_restore_cfg_space - Restore PCI config space. 7518 * @ipr_cmd: ipr command struct 7519 * 7520 * Description: This function restores the saved PCI config space of 7521 * the adapter, fails all outstanding ops back to the callers, and 7522 * fetches the dump/unit check if applicable to this reset. 7523 * 7524 * Return value: 7525 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7526 **/ 7527static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 7528{ 7529 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7530 u32 int_reg; 7531 7532 ENTER; 7533 ioa_cfg->pdev->state_saved = true; 7534 pci_restore_state(ioa_cfg->pdev); 7535 7536 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 7537 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7538 return IPR_RC_JOB_CONTINUE; 7539 } 7540 7541 ipr_fail_all_ops(ioa_cfg); 7542 7543 if (ioa_cfg->sis64) { 7544 /* Set the adapter to the correct endian mode. */ 7545 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 7546 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 7547 } 7548 7549 if (ioa_cfg->ioa_unit_checked) { 7550 if (ioa_cfg->sis64) { 7551 ipr_cmd->job_step = ipr_reset_get_unit_check_job; 7552 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); 7553 return IPR_RC_JOB_RETURN; 7554 } else { 7555 ioa_cfg->ioa_unit_checked = 0; 7556 ipr_get_unit_check_buffer(ioa_cfg); 7557 ipr_cmd->job_step = ipr_reset_alert; 7558 ipr_reset_start_timer(ipr_cmd, 0); 7559 return IPR_RC_JOB_RETURN; 7560 } 7561 } 7562 7563 if (ioa_cfg->in_ioa_bringdown) { 7564 ipr_cmd->job_step = ipr_ioa_bringdown_done; 7565 } else { 7566 ipr_cmd->job_step = ipr_reset_enable_ioa; 7567 7568 if (GET_DUMP == ioa_cfg->sdt_state) { 7569 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); 7570 ipr_cmd->job_step = ipr_reset_wait_for_dump; 7571 schedule_work(&ioa_cfg->work_q); 7572 return IPR_RC_JOB_RETURN; 7573 } 7574 } 7575 7576 LEAVE; 7577 return IPR_RC_JOB_CONTINUE; 7578} 7579 7580/** 7581 * ipr_reset_bist_done - BIST has completed on the adapter. 7582 * @ipr_cmd: ipr command struct 7583 * 7584 * Description: Unblock config space and resume the reset process. 7585 * 7586 * Return value: 7587 * IPR_RC_JOB_CONTINUE 7588 **/ 7589static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 7590{ 7591 ENTER; 7592 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7593 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 7594 LEAVE; 7595 return IPR_RC_JOB_CONTINUE; 7596} 7597 7598/** 7599 * ipr_reset_start_bist - Run BIST on the adapter. 7600 * @ipr_cmd: ipr command struct 7601 * 7602 * Description: This function runs BIST on the adapter, then delays 2 seconds. 7603 * 7604 * Return value: 7605 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7606 **/ 7607static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 7608{ 7609 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7610 int rc = PCIBIOS_SUCCESSFUL; 7611 7612 ENTER; 7613 pci_block_user_cfg_access(ioa_cfg->pdev); 7614 7615 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) 7616 writel(IPR_UPROCI_SIS64_START_BIST, 7617 ioa_cfg->regs.set_uproc_interrupt_reg32); 7618 else 7619 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 7620 7621 if (rc == PCIBIOS_SUCCESSFUL) { 7622 ipr_cmd->job_step = ipr_reset_bist_done; 7623 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7624 rc = IPR_RC_JOB_RETURN; 7625 } else { 7626 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7627 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7628 rc = IPR_RC_JOB_CONTINUE; 7629 } 7630 7631 LEAVE; 7632 return rc; 7633} 7634 7635/** 7636 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 7637 * @ipr_cmd: ipr command struct 7638 * 7639 * Description: This clears PCI reset to the adapter and delays two seconds. 7640 * 7641 * Return value: 7642 * IPR_RC_JOB_RETURN 7643 **/ 7644static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 7645{ 7646 ENTER; 7647 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 7648 ipr_cmd->job_step = ipr_reset_bist_done; 7649 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7650 LEAVE; 7651 return IPR_RC_JOB_RETURN; 7652} 7653 7654/** 7655 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 7656 * @ipr_cmd: ipr command struct 7657 * 7658 * Description: This asserts PCI reset to the adapter. 7659 * 7660 * Return value: 7661 * IPR_RC_JOB_RETURN 7662 **/ 7663static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 7664{ 7665 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7666 struct pci_dev *pdev = ioa_cfg->pdev; 7667 7668 ENTER; 7669 pci_block_user_cfg_access(pdev); 7670 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 7671 ipr_cmd->job_step = ipr_reset_slot_reset_done; 7672 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 7673 LEAVE; 7674 return IPR_RC_JOB_RETURN; 7675} 7676 7677/** 7678 * ipr_reset_allowed - Query whether or not IOA can be reset 7679 * @ioa_cfg: ioa config struct 7680 * 7681 * Return value: 7682 * 0 if reset not allowed / non-zero if reset is allowed 7683 **/ 7684static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 7685{ 7686 volatile u32 temp_reg; 7687 7688 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7689 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 7690} 7691 7692/** 7693 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 7694 * @ipr_cmd: ipr command struct 7695 * 7696 * Description: This function waits for adapter permission to run BIST, 7697 * then runs BIST. If the adapter does not give permission after a 7698 * reasonable time, we will reset the adapter anyway. The impact of 7699 * resetting the adapter without warning the adapter is the risk of 7700 * losing the persistent error log on the adapter. If the adapter is 7701 * reset while it is writing to the flash on the adapter, the flash 7702 * segment will have bad ECC and be zeroed. 7703 * 7704 * Return value: 7705 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7706 **/ 7707static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 7708{ 7709 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7710 int rc = IPR_RC_JOB_RETURN; 7711 7712 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 7713 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7714 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7715 } else { 7716 ipr_cmd->job_step = ioa_cfg->reset; 7717 rc = IPR_RC_JOB_CONTINUE; 7718 } 7719 7720 return rc; 7721} 7722 7723/** 7724 * ipr_reset_alert - Alert the adapter of a pending reset 7725 * @ipr_cmd: ipr command struct 7726 * 7727 * Description: This function alerts the adapter that it will be reset. 7728 * If memory space is not currently enabled, proceed directly 7729 * to running BIST on the adapter. The timer must always be started 7730 * so we guarantee we do not run BIST from ipr_isr. 7731 * 7732 * Return value: 7733 * IPR_RC_JOB_RETURN 7734 **/ 7735static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 7736{ 7737 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7738 u16 cmd_reg; 7739 int rc; 7740 7741 ENTER; 7742 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 7743 7744 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 7745 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 7746 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 7747 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 7748 } else { 7749 ipr_cmd->job_step = ioa_cfg->reset; 7750 } 7751 7752 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7753 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7754 7755 LEAVE; 7756 return IPR_RC_JOB_RETURN; 7757} 7758 7759/** 7760 * ipr_reset_ucode_download_done - Microcode download completion 7761 * @ipr_cmd: ipr command struct 7762 * 7763 * Description: This function unmaps the microcode download buffer. 7764 * 7765 * Return value: 7766 * IPR_RC_JOB_CONTINUE 7767 **/ 7768static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 7769{ 7770 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7771 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7772 7773 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 7774 sglist->num_sg, DMA_TO_DEVICE); 7775 7776 ipr_cmd->job_step = ipr_reset_alert; 7777 return IPR_RC_JOB_CONTINUE; 7778} 7779 7780/** 7781 * ipr_reset_ucode_download - Download microcode to the adapter 7782 * @ipr_cmd: ipr command struct 7783 * 7784 * Description: This function checks to see if it there is microcode 7785 * to download to the adapter. If there is, a download is performed. 7786 * 7787 * Return value: 7788 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7789 **/ 7790static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 7791{ 7792 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7793 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7794 7795 ENTER; 7796 ipr_cmd->job_step = ipr_reset_alert; 7797 7798 if (!sglist) 7799 return IPR_RC_JOB_CONTINUE; 7800 7801 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7802 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7803 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 7804 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 7805 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 7806 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 7807 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 7808 7809 if (ioa_cfg->sis64) 7810 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 7811 else 7812 ipr_build_ucode_ioadl(ipr_cmd, sglist); 7813 ipr_cmd->job_step = ipr_reset_ucode_download_done; 7814 7815 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7816 IPR_WRITE_BUFFER_TIMEOUT); 7817 7818 LEAVE; 7819 return IPR_RC_JOB_RETURN; 7820} 7821 7822/** 7823 * ipr_reset_shutdown_ioa - Shutdown the adapter 7824 * @ipr_cmd: ipr command struct 7825 * 7826 * Description: This function issues an adapter shutdown of the 7827 * specified type to the specified adapter as part of the 7828 * adapter reset job. 7829 * 7830 * Return value: 7831 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7832 **/ 7833static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 7834{ 7835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7836 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 7837 unsigned long timeout; 7838 int rc = IPR_RC_JOB_CONTINUE; 7839 7840 ENTER; 7841 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 7842 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7843 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7844 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 7845 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 7846 7847 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 7848 timeout = IPR_SHUTDOWN_TIMEOUT; 7849 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 7850 timeout = IPR_INTERNAL_TIMEOUT; 7851 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7852 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 7853 else 7854 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 7855 7856 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 7857 7858 rc = IPR_RC_JOB_RETURN; 7859 ipr_cmd->job_step = ipr_reset_ucode_download; 7860 } else 7861 ipr_cmd->job_step = ipr_reset_alert; 7862 7863 LEAVE; 7864 return rc; 7865} 7866 7867/** 7868 * ipr_reset_ioa_job - Adapter reset job 7869 * @ipr_cmd: ipr command struct 7870 * 7871 * Description: This function is the job router for the adapter reset job. 7872 * 7873 * Return value: 7874 * none 7875 **/ 7876static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 7877{ 7878 u32 rc, ioasc; 7879 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7880 7881 do { 7882 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7883 7884 if (ioa_cfg->reset_cmd != ipr_cmd) { 7885 /* 7886 * We are doing nested adapter resets and this is 7887 * not the current reset job. 7888 */ 7889 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7890 return; 7891 } 7892 7893 if (IPR_IOASC_SENSE_KEY(ioasc)) { 7894 rc = ipr_cmd->job_step_failed(ipr_cmd); 7895 if (rc == IPR_RC_JOB_RETURN) 7896 return; 7897 } 7898 7899 ipr_reinit_ipr_cmnd(ipr_cmd); 7900 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 7901 rc = ipr_cmd->job_step(ipr_cmd); 7902 } while(rc == IPR_RC_JOB_CONTINUE); 7903} 7904 7905/** 7906 * _ipr_initiate_ioa_reset - Initiate an adapter reset 7907 * @ioa_cfg: ioa config struct 7908 * @job_step: first job step of reset job 7909 * @shutdown_type: shutdown type 7910 * 7911 * Description: This function will initiate the reset of the given adapter 7912 * starting at the selected job step. 7913 * If the caller needs to wait on the completion of the reset, 7914 * the caller must sleep on the reset_wait_q. 7915 * 7916 * Return value: 7917 * none 7918 **/ 7919static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7920 int (*job_step) (struct ipr_cmnd *), 7921 enum ipr_shutdown_type shutdown_type) 7922{ 7923 struct ipr_cmnd *ipr_cmd; 7924 7925 ioa_cfg->in_reset_reload = 1; 7926 ioa_cfg->allow_cmds = 0; 7927 scsi_block_requests(ioa_cfg->host); 7928 7929 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 7930 ioa_cfg->reset_cmd = ipr_cmd; 7931 ipr_cmd->job_step = job_step; 7932 ipr_cmd->u.shutdown_type = shutdown_type; 7933 7934 ipr_reset_ioa_job(ipr_cmd); 7935} 7936 7937/** 7938 * ipr_initiate_ioa_reset - Initiate an adapter reset 7939 * @ioa_cfg: ioa config struct 7940 * @shutdown_type: shutdown type 7941 * 7942 * Description: This function will initiate the reset of the given adapter. 7943 * If the caller needs to wait on the completion of the reset, 7944 * the caller must sleep on the reset_wait_q. 7945 * 7946 * Return value: 7947 * none 7948 **/ 7949static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7950 enum ipr_shutdown_type shutdown_type) 7951{ 7952 if (ioa_cfg->ioa_is_dead) 7953 return; 7954 7955 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) 7956 ioa_cfg->sdt_state = ABORT_DUMP; 7957 7958 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 7959 dev_err(&ioa_cfg->pdev->dev, 7960 "IOA taken offline - error recovery failed\n"); 7961 7962 ioa_cfg->reset_retries = 0; 7963 ioa_cfg->ioa_is_dead = 1; 7964 7965 if (ioa_cfg->in_ioa_bringdown) { 7966 ioa_cfg->reset_cmd = NULL; 7967 ioa_cfg->in_reset_reload = 0; 7968 ipr_fail_all_ops(ioa_cfg); 7969 wake_up_all(&ioa_cfg->reset_wait_q); 7970 7971 spin_unlock_irq(ioa_cfg->host->host_lock); 7972 scsi_unblock_requests(ioa_cfg->host); 7973 spin_lock_irq(ioa_cfg->host->host_lock); 7974 return; 7975 } else { 7976 ioa_cfg->in_ioa_bringdown = 1; 7977 shutdown_type = IPR_SHUTDOWN_NONE; 7978 } 7979 } 7980 7981 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 7982 shutdown_type); 7983} 7984 7985/** 7986 * ipr_reset_freeze - Hold off all I/O activity 7987 * @ipr_cmd: ipr command struct 7988 * 7989 * Description: If the PCI slot is frozen, hold off all I/O 7990 * activity; then, as soon as the slot is available again, 7991 * initiate an adapter reset. 7992 */ 7993static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 7994{ 7995 /* Disallow new interrupts, avoid loop */ 7996 ipr_cmd->ioa_cfg->allow_interrupts = 0; 7997 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7998 ipr_cmd->done = ipr_reset_ioa_job; 7999 return IPR_RC_JOB_RETURN; 8000} 8001 8002/** 8003 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 8004 * @pdev: PCI device struct 8005 * 8006 * Description: This routine is called to tell us that the PCI bus 8007 * is down. Can't do anything here, except put the device driver 8008 * into a holding pattern, waiting for the PCI bus to come back. 8009 */ 8010static void ipr_pci_frozen(struct pci_dev *pdev) 8011{ 8012 unsigned long flags = 0; 8013 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8014 8015 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8016 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 8017 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8018} 8019 8020/** 8021 * ipr_pci_slot_reset - Called when PCI slot has been reset. 8022 * @pdev: PCI device struct 8023 * 8024 * Description: This routine is called by the pci error recovery 8025 * code after the PCI slot has been reset, just before we 8026 * should resume normal operations. 8027 */ 8028static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 8029{ 8030 unsigned long flags = 0; 8031 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8032 8033 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8034 if (ioa_cfg->needs_warm_reset) 8035 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8036 else 8037 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 8038 IPR_SHUTDOWN_NONE); 8039 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8040 return PCI_ERS_RESULT_RECOVERED; 8041} 8042 8043/** 8044 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 8045 * @pdev: PCI device struct 8046 * 8047 * Description: This routine is called when the PCI bus has 8048 * permanently failed. 8049 */ 8050static void ipr_pci_perm_failure(struct pci_dev *pdev) 8051{ 8052 unsigned long flags = 0; 8053 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8054 8055 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8056 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8057 ioa_cfg->sdt_state = ABORT_DUMP; 8058 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 8059 ioa_cfg->in_ioa_bringdown = 1; 8060 ioa_cfg->allow_cmds = 0; 8061 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8062 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8063} 8064 8065/** 8066 * ipr_pci_error_detected - Called when a PCI error is detected. 8067 * @pdev: PCI device struct 8068 * @state: PCI channel state 8069 * 8070 * Description: Called when a PCI error is detected. 8071 * 8072 * Return value: 8073 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 8074 */ 8075static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 8076 pci_channel_state_t state) 8077{ 8078 switch (state) { 8079 case pci_channel_io_frozen: 8080 ipr_pci_frozen(pdev); 8081 return PCI_ERS_RESULT_NEED_RESET; 8082 case pci_channel_io_perm_failure: 8083 ipr_pci_perm_failure(pdev); 8084 return PCI_ERS_RESULT_DISCONNECT; 8085 break; 8086 default: 8087 break; 8088 } 8089 return PCI_ERS_RESULT_NEED_RESET; 8090} 8091 8092/** 8093 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 8094 * @ioa_cfg: ioa cfg struct 8095 * 8096 * Description: This is the second phase of adapter intialization 8097 * This function takes care of initilizing the adapter to the point 8098 * where it can accept new commands. 8099 8100 * Return value: 8101 * 0 on success / -EIO on failure 8102 **/ 8103static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 8104{ 8105 int rc = 0; 8106 unsigned long host_lock_flags = 0; 8107 8108 ENTER; 8109 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8110 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 8111 if (ioa_cfg->needs_hard_reset) { 8112 ioa_cfg->needs_hard_reset = 0; 8113 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8114 } else 8115 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 8116 IPR_SHUTDOWN_NONE); 8117 8118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8119 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8120 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8121 8122 if (ioa_cfg->ioa_is_dead) { 8123 rc = -EIO; 8124 } else if (ipr_invalid_adapter(ioa_cfg)) { 8125 if (!ipr_testmode) 8126 rc = -EIO; 8127 8128 dev_err(&ioa_cfg->pdev->dev, 8129 "Adapter not supported in this hardware configuration.\n"); 8130 } 8131 8132 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8133 8134 LEAVE; 8135 return rc; 8136} 8137 8138/** 8139 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 8140 * @ioa_cfg: ioa config struct 8141 * 8142 * Return value: 8143 * none 8144 **/ 8145static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8146{ 8147 int i; 8148 8149 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8150 if (ioa_cfg->ipr_cmnd_list[i]) 8151 pci_pool_free(ioa_cfg->ipr_cmd_pool, 8152 ioa_cfg->ipr_cmnd_list[i], 8153 ioa_cfg->ipr_cmnd_list_dma[i]); 8154 8155 ioa_cfg->ipr_cmnd_list[i] = NULL; 8156 } 8157 8158 if (ioa_cfg->ipr_cmd_pool) 8159 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 8160 8161 ioa_cfg->ipr_cmd_pool = NULL; 8162} 8163 8164/** 8165 * ipr_free_mem - Frees memory allocated for an adapter 8166 * @ioa_cfg: ioa cfg struct 8167 * 8168 * Return value: 8169 * nothing 8170 **/ 8171static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 8172{ 8173 int i; 8174 8175 kfree(ioa_cfg->res_entries); 8176 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 8177 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8178 ipr_free_cmd_blks(ioa_cfg); 8179 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8180 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8181 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, 8182 ioa_cfg->u.cfg_table, 8183 ioa_cfg->cfg_table_dma); 8184 8185 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8186 pci_free_consistent(ioa_cfg->pdev, 8187 sizeof(struct ipr_hostrcb), 8188 ioa_cfg->hostrcb[i], 8189 ioa_cfg->hostrcb_dma[i]); 8190 } 8191 8192 ipr_free_dump(ioa_cfg); 8193 kfree(ioa_cfg->trace); 8194} 8195 8196/** 8197 * ipr_free_all_resources - Free all allocated resources for an adapter. 8198 * @ipr_cmd: ipr command struct 8199 * 8200 * This function frees all allocated resources for the 8201 * specified adapter. 8202 * 8203 * Return value: 8204 * none 8205 **/ 8206static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 8207{ 8208 struct pci_dev *pdev = ioa_cfg->pdev; 8209 8210 ENTER; 8211 free_irq(pdev->irq, ioa_cfg); 8212 pci_disable_msi(pdev); 8213 iounmap(ioa_cfg->hdw_dma_regs); 8214 pci_release_regions(pdev); 8215 ipr_free_mem(ioa_cfg); 8216 scsi_host_put(ioa_cfg->host); 8217 pci_disable_device(pdev); 8218 LEAVE; 8219} 8220 8221/** 8222 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 8223 * @ioa_cfg: ioa config struct 8224 * 8225 * Return value: 8226 * 0 on success / -ENOMEM on allocation failure 8227 **/ 8228static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8229{ 8230 struct ipr_cmnd *ipr_cmd; 8231 struct ipr_ioarcb *ioarcb; 8232 dma_addr_t dma_addr; 8233 int i; 8234 8235 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 8236 sizeof(struct ipr_cmnd), 16, 0); 8237 8238 if (!ioa_cfg->ipr_cmd_pool) 8239 return -ENOMEM; 8240 8241 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8242 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 8243 8244 if (!ipr_cmd) { 8245 ipr_free_cmd_blks(ioa_cfg); 8246 return -ENOMEM; 8247 } 8248 8249 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 8250 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 8251 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 8252 8253 ioarcb = &ipr_cmd->ioarcb; 8254 ipr_cmd->dma_addr = dma_addr; 8255 if (ioa_cfg->sis64) 8256 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 8257 else 8258 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 8259 8260 ioarcb->host_response_handle = cpu_to_be32(i << 2); 8261 if (ioa_cfg->sis64) { 8262 ioarcb->u.sis64_addr_data.data_ioadl_addr = 8263 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 8264 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 8265 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); 8266 } else { 8267 ioarcb->write_ioadl_addr = 8268 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 8269 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 8270 ioarcb->ioasa_host_pci_addr = 8271 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); 8272 } 8273 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 8274 ipr_cmd->cmd_index = i; 8275 ipr_cmd->ioa_cfg = ioa_cfg; 8276 ipr_cmd->sense_buffer_dma = dma_addr + 8277 offsetof(struct ipr_cmnd, sense_buffer); 8278 8279 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8280 } 8281 8282 return 0; 8283} 8284 8285/** 8286 * ipr_alloc_mem - Allocate memory for an adapter 8287 * @ioa_cfg: ioa config struct 8288 * 8289 * Return value: 8290 * 0 on success / non-zero for error 8291 **/ 8292static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 8293{ 8294 struct pci_dev *pdev = ioa_cfg->pdev; 8295 int i, rc = -ENOMEM; 8296 8297 ENTER; 8298 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 8299 ioa_cfg->max_devs_supported, GFP_KERNEL); 8300 8301 if (!ioa_cfg->res_entries) 8302 goto out; 8303 8304 if (ioa_cfg->sis64) { 8305 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * 8306 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8307 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * 8308 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8309 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * 8310 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8311 } 8312 8313 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8314 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8315 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8316 } 8317 8318 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 8319 sizeof(struct ipr_misc_cbs), 8320 &ioa_cfg->vpd_cbs_dma); 8321 8322 if (!ioa_cfg->vpd_cbs) 8323 goto out_free_res_entries; 8324 8325 if (ipr_alloc_cmd_blks(ioa_cfg)) 8326 goto out_free_vpd_cbs; 8327 8328 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 8329 sizeof(u32) * IPR_NUM_CMD_BLKS, 8330 &ioa_cfg->host_rrq_dma); 8331 8332 if (!ioa_cfg->host_rrq) 8333 goto out_ipr_free_cmd_blocks; 8334 8335 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 8336 ioa_cfg->cfg_table_size, 8337 &ioa_cfg->cfg_table_dma); 8338 8339 if (!ioa_cfg->u.cfg_table) 8340 goto out_free_host_rrq; 8341 8342 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8343 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 8344 sizeof(struct ipr_hostrcb), 8345 &ioa_cfg->hostrcb_dma[i]); 8346 8347 if (!ioa_cfg->hostrcb[i]) 8348 goto out_free_hostrcb_dma; 8349 8350 ioa_cfg->hostrcb[i]->hostrcb_dma = 8351 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 8352 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 8353 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 8354 } 8355 8356 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 8357 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 8358 8359 if (!ioa_cfg->trace) 8360 goto out_free_hostrcb_dma; 8361 8362 rc = 0; 8363out: 8364 LEAVE; 8365 return rc; 8366 8367out_free_hostrcb_dma: 8368 while (i-- > 0) { 8369 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 8370 ioa_cfg->hostrcb[i], 8371 ioa_cfg->hostrcb_dma[i]); 8372 } 8373 pci_free_consistent(pdev, ioa_cfg->cfg_table_size, 8374 ioa_cfg->u.cfg_table, 8375 ioa_cfg->cfg_table_dma); 8376out_free_host_rrq: 8377 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8378 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8379out_ipr_free_cmd_blocks: 8380 ipr_free_cmd_blks(ioa_cfg); 8381out_free_vpd_cbs: 8382 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 8383 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8384out_free_res_entries: 8385 kfree(ioa_cfg->res_entries); 8386 goto out; 8387} 8388 8389/** 8390 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 8391 * @ioa_cfg: ioa config struct 8392 * 8393 * Return value: 8394 * none 8395 **/ 8396static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 8397{ 8398 int i; 8399 8400 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 8401 ioa_cfg->bus_attr[i].bus = i; 8402 ioa_cfg->bus_attr[i].qas_enabled = 0; 8403 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 8404 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 8405 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 8406 else 8407 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 8408 } 8409} 8410 8411/** 8412 * ipr_init_ioa_cfg - Initialize IOA config struct 8413 * @ioa_cfg: ioa config struct 8414 * @host: scsi host struct 8415 * @pdev: PCI dev struct 8416 * 8417 * Return value: 8418 * none 8419 **/ 8420static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 8421 struct Scsi_Host *host, struct pci_dev *pdev) 8422{ 8423 const struct ipr_interrupt_offsets *p; 8424 struct ipr_interrupts *t; 8425 void __iomem *base; 8426 8427 ioa_cfg->host = host; 8428 ioa_cfg->pdev = pdev; 8429 ioa_cfg->log_level = ipr_log_level; 8430 ioa_cfg->doorbell = IPR_DOORBELL; 8431 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 8432 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 8433 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 8434 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 8435 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 8436 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 8437 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 8438 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 8439 8440 INIT_LIST_HEAD(&ioa_cfg->free_q); 8441 INIT_LIST_HEAD(&ioa_cfg->pending_q); 8442 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 8443 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 8444 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 8445 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 8446 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 8447 init_waitqueue_head(&ioa_cfg->reset_wait_q); 8448 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8449 ioa_cfg->sdt_state = INACTIVE; 8450 8451 ipr_initialize_bus_attr(ioa_cfg); 8452 ioa_cfg->max_devs_supported = ipr_max_devs; 8453 8454 if (ioa_cfg->sis64) { 8455 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 8456 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 8457 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 8458 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 8459 } else { 8460 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 8461 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 8462 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 8463 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 8464 } 8465 host->max_channel = IPR_MAX_BUS_TO_SCAN; 8466 host->unique_id = host->host_no; 8467 host->max_cmd_len = IPR_MAX_CDB_LEN; 8468 pci_set_drvdata(pdev, ioa_cfg); 8469 8470 p = &ioa_cfg->chip_cfg->regs; 8471 t = &ioa_cfg->regs; 8472 base = ioa_cfg->hdw_dma_regs; 8473 8474 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 8475 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 8476 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 8477 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 8478 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 8479 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 8480 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 8481 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 8482 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 8483 t->ioarrin_reg = base + p->ioarrin_reg; 8484 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 8485 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 8486 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 8487 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 8488 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 8489 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 8490 8491 if (ioa_cfg->sis64) { 8492 t->init_feedback_reg = base + p->init_feedback_reg; 8493 t->dump_addr_reg = base + p->dump_addr_reg; 8494 t->dump_data_reg = base + p->dump_data_reg; 8495 t->endian_swap_reg = base + p->endian_swap_reg; 8496 } 8497} 8498 8499/** 8500 * ipr_get_chip_info - Find adapter chip information 8501 * @dev_id: PCI device id struct 8502 * 8503 * Return value: 8504 * ptr to chip information on success / NULL on failure 8505 **/ 8506static const struct ipr_chip_t * __devinit 8507ipr_get_chip_info(const struct pci_device_id *dev_id) 8508{ 8509 int i; 8510 8511 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 8512 if (ipr_chip[i].vendor == dev_id->vendor && 8513 ipr_chip[i].device == dev_id->device) 8514 return &ipr_chip[i]; 8515 return NULL; 8516} 8517 8518/** 8519 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 8520 * @pdev: PCI device struct 8521 * 8522 * Description: Simply set the msi_received flag to 1 indicating that 8523 * Message Signaled Interrupts are supported. 8524 * 8525 * Return value: 8526 * 0 on success / non-zero on failure 8527 **/ 8528static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) 8529{ 8530 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 8531 unsigned long lock_flags = 0; 8532 irqreturn_t rc = IRQ_HANDLED; 8533 8534 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8535 8536 ioa_cfg->msi_received = 1; 8537 wake_up(&ioa_cfg->msi_wait_q); 8538 8539 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8540 return rc; 8541} 8542 8543/** 8544 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 8545 * @pdev: PCI device struct 8546 * 8547 * Description: The return value from pci_enable_msi() can not always be 8548 * trusted. This routine sets up and initiates a test interrupt to determine 8549 * if the interrupt is received via the ipr_test_intr() service routine. 8550 * If the tests fails, the driver will fall back to LSI. 8551 * 8552 * Return value: 8553 * 0 on success / non-zero on failure 8554 **/ 8555static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, 8556 struct pci_dev *pdev) 8557{ 8558 int rc; 8559 volatile u32 int_reg; 8560 unsigned long lock_flags = 0; 8561 8562 ENTER; 8563 8564 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8565 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8566 ioa_cfg->msi_received = 0; 8567 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8568 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 8569 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8570 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8571 8572 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 8573 if (rc) { 8574 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); 8575 return rc; 8576 } else if (ipr_debug) 8577 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); 8578 8579 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 8580 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8581 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 8582 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8583 8584 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8585 if (!ioa_cfg->msi_received) { 8586 /* MSI test failed */ 8587 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 8588 rc = -EOPNOTSUPP; 8589 } else if (ipr_debug) 8590 dev_info(&pdev->dev, "MSI test succeeded.\n"); 8591 8592 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8593 8594 free_irq(pdev->irq, ioa_cfg); 8595 8596 LEAVE; 8597 8598 return rc; 8599} 8600 8601/** 8602 * ipr_probe_ioa - Allocates memory and does first stage of initialization 8603 * @pdev: PCI device struct 8604 * @dev_id: PCI device id struct 8605 * 8606 * Return value: 8607 * 0 on success / non-zero on failure 8608 **/ 8609static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 8610 const struct pci_device_id *dev_id) 8611{ 8612 struct ipr_ioa_cfg *ioa_cfg; 8613 struct Scsi_Host *host; 8614 unsigned long ipr_regs_pci; 8615 void __iomem *ipr_regs; 8616 int rc = PCIBIOS_SUCCESSFUL; 8617 volatile u32 mask, uproc, interrupts; 8618 8619 ENTER; 8620 8621 if ((rc = pci_enable_device(pdev))) { 8622 dev_err(&pdev->dev, "Cannot enable adapter\n"); 8623 goto out; 8624 } 8625 8626 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 8627 8628 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 8629 8630 if (!host) { 8631 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 8632 rc = -ENOMEM; 8633 goto out_disable; 8634 } 8635 8636 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 8637 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 8638 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 8639 sata_port_info.flags, &ipr_sata_ops); 8640 8641 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 8642 8643 if (!ioa_cfg->ipr_chip) { 8644 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 8645 dev_id->vendor, dev_id->device); 8646 goto out_scsi_host_put; 8647 } 8648 8649 /* set SIS 32 or SIS 64 */ 8650 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 8651 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 8652 8653 if (ipr_transop_timeout) 8654 ioa_cfg->transop_timeout = ipr_transop_timeout; 8655 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 8656 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 8657 else 8658 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 8659 8660 ioa_cfg->revid = pdev->revision; 8661 8662 ipr_regs_pci = pci_resource_start(pdev, 0); 8663 8664 rc = pci_request_regions(pdev, IPR_NAME); 8665 if (rc < 0) { 8666 dev_err(&pdev->dev, 8667 "Couldn't register memory range of registers\n"); 8668 goto out_scsi_host_put; 8669 } 8670 8671 ipr_regs = pci_ioremap_bar(pdev, 0); 8672 8673 if (!ipr_regs) { 8674 dev_err(&pdev->dev, 8675 "Couldn't map memory range of registers\n"); 8676 rc = -ENOMEM; 8677 goto out_release_regions; 8678 } 8679 8680 ioa_cfg->hdw_dma_regs = ipr_regs; 8681 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 8682 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 8683 8684 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 8685 8686 pci_set_master(pdev); 8687 8688 if (ioa_cfg->sis64) { 8689 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 8690 if (rc < 0) { 8691 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); 8692 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8693 } 8694 8695 } else 8696 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8697 8698 if (rc < 0) { 8699 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 8700 goto cleanup_nomem; 8701 } 8702 8703 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 8704 ioa_cfg->chip_cfg->cache_line_size); 8705 8706 if (rc != PCIBIOS_SUCCESSFUL) { 8707 dev_err(&pdev->dev, "Write of cache line size failed\n"); 8708 rc = -EIO; 8709 goto cleanup_nomem; 8710 } 8711 8712 /* Enable MSI style interrupts if they are supported. */ 8713 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { 8714 rc = ipr_test_msi(ioa_cfg, pdev); 8715 if (rc == -EOPNOTSUPP) 8716 pci_disable_msi(pdev); 8717 else if (rc) 8718 goto out_msi_disable; 8719 else 8720 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); 8721 } else if (ipr_debug) 8722 dev_info(&pdev->dev, "Cannot enable MSI.\n"); 8723 8724 /* Save away PCI config space for use following IOA reset */ 8725 rc = pci_save_state(pdev); 8726 8727 if (rc != PCIBIOS_SUCCESSFUL) { 8728 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 8729 rc = -EIO; 8730 goto cleanup_nomem; 8731 } 8732 8733 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 8734 goto cleanup_nomem; 8735 8736 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 8737 goto cleanup_nomem; 8738 8739 if (ioa_cfg->sis64) 8740 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 8741 + ((sizeof(struct ipr_config_table_entry64) 8742 * ioa_cfg->max_devs_supported))); 8743 else 8744 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 8745 + ((sizeof(struct ipr_config_table_entry) 8746 * ioa_cfg->max_devs_supported))); 8747 8748 rc = ipr_alloc_mem(ioa_cfg); 8749 if (rc < 0) { 8750 dev_err(&pdev->dev, 8751 "Couldn't allocate enough memory for device driver!\n"); 8752 goto cleanup_nomem; 8753 } 8754 8755 /* 8756 * If HRRQ updated interrupt is not masked, or reset alert is set, 8757 * the card is in an unknown state and needs a hard reset 8758 */ 8759 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 8760 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 8761 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 8762 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 8763 ioa_cfg->needs_hard_reset = 1; 8764 if (interrupts & IPR_PCII_ERROR_INTERRUPTS) 8765 ioa_cfg->needs_hard_reset = 1; 8766 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 8767 ioa_cfg->ioa_unit_checked = 1; 8768 8769 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8770 rc = request_irq(pdev->irq, ipr_isr, 8771 ioa_cfg->msi_received ? 0 : IRQF_SHARED, 8772 IPR_NAME, ioa_cfg); 8773 8774 if (rc) { 8775 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 8776 pdev->irq, rc); 8777 goto cleanup_nolog; 8778 } 8779 8780 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 8781 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 8782 ioa_cfg->needs_warm_reset = 1; 8783 ioa_cfg->reset = ipr_reset_slot_reset; 8784 } else 8785 ioa_cfg->reset = ipr_reset_start_bist; 8786 8787 spin_lock(&ipr_driver_lock); 8788 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 8789 spin_unlock(&ipr_driver_lock); 8790 8791 LEAVE; 8792out: 8793 return rc; 8794 8795cleanup_nolog: 8796 ipr_free_mem(ioa_cfg); 8797cleanup_nomem: 8798 iounmap(ipr_regs); 8799out_msi_disable: 8800 pci_disable_msi(pdev); 8801out_release_regions: 8802 pci_release_regions(pdev); 8803out_scsi_host_put: 8804 scsi_host_put(host); 8805out_disable: 8806 pci_disable_device(pdev); 8807 goto out; 8808} 8809 8810/** 8811 * ipr_scan_vsets - Scans for VSET devices 8812 * @ioa_cfg: ioa config struct 8813 * 8814 * Description: Since the VSET resources do not follow SAM in that we can have 8815 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 8816 * 8817 * Return value: 8818 * none 8819 **/ 8820static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 8821{ 8822 int target, lun; 8823 8824 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 8825 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 8826 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 8827} 8828 8829/** 8830 * ipr_initiate_ioa_bringdown - Bring down an adapter 8831 * @ioa_cfg: ioa config struct 8832 * @shutdown_type: shutdown type 8833 * 8834 * Description: This function will initiate bringing down the adapter. 8835 * This consists of issuing an IOA shutdown to the adapter 8836 * to flush the cache, and running BIST. 8837 * If the caller needs to wait on the completion of the reset, 8838 * the caller must sleep on the reset_wait_q. 8839 * 8840 * Return value: 8841 * none 8842 **/ 8843static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 8844 enum ipr_shutdown_type shutdown_type) 8845{ 8846 ENTER; 8847 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8848 ioa_cfg->sdt_state = ABORT_DUMP; 8849 ioa_cfg->reset_retries = 0; 8850 ioa_cfg->in_ioa_bringdown = 1; 8851 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 8852 LEAVE; 8853} 8854 8855/** 8856 * __ipr_remove - Remove a single adapter 8857 * @pdev: pci device struct 8858 * 8859 * Adapter hot plug remove entry point. 8860 * 8861 * Return value: 8862 * none 8863 **/ 8864static void __ipr_remove(struct pci_dev *pdev) 8865{ 8866 unsigned long host_lock_flags = 0; 8867 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8868 ENTER; 8869 8870 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8871 while(ioa_cfg->in_reset_reload) { 8872 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8873 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8874 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8875 } 8876 8877 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8878 8879 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8880 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8881 flush_work_sync(&ioa_cfg->work_q); 8882 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8883 8884 spin_lock(&ipr_driver_lock); 8885 list_del(&ioa_cfg->queue); 8886 spin_unlock(&ipr_driver_lock); 8887 8888 if (ioa_cfg->sdt_state == ABORT_DUMP) 8889 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8890 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8891 8892 ipr_free_all_resources(ioa_cfg); 8893 8894 LEAVE; 8895} 8896 8897/** 8898 * ipr_remove - IOA hot plug remove entry point 8899 * @pdev: pci device struct 8900 * 8901 * Adapter hot plug remove entry point. 8902 * 8903 * Return value: 8904 * none 8905 **/ 8906static void __devexit ipr_remove(struct pci_dev *pdev) 8907{ 8908 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8909 8910 ENTER; 8911 8912 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8913 &ipr_trace_attr); 8914 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 8915 &ipr_dump_attr); 8916 scsi_remove_host(ioa_cfg->host); 8917 8918 __ipr_remove(pdev); 8919 8920 LEAVE; 8921} 8922 8923/** 8924 * ipr_probe - Adapter hot plug add entry point 8925 * 8926 * Return value: 8927 * 0 on success / non-zero on failure 8928 **/ 8929static int __devinit ipr_probe(struct pci_dev *pdev, 8930 const struct pci_device_id *dev_id) 8931{ 8932 struct ipr_ioa_cfg *ioa_cfg; 8933 int rc; 8934 8935 rc = ipr_probe_ioa(pdev, dev_id); 8936 8937 if (rc) 8938 return rc; 8939 8940 ioa_cfg = pci_get_drvdata(pdev); 8941 rc = ipr_probe_ioa_part2(ioa_cfg); 8942 8943 if (rc) { 8944 __ipr_remove(pdev); 8945 return rc; 8946 } 8947 8948 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 8949 8950 if (rc) { 8951 __ipr_remove(pdev); 8952 return rc; 8953 } 8954 8955 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 8956 &ipr_trace_attr); 8957 8958 if (rc) { 8959 scsi_remove_host(ioa_cfg->host); 8960 __ipr_remove(pdev); 8961 return rc; 8962 } 8963 8964 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 8965 &ipr_dump_attr); 8966 8967 if (rc) { 8968 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8969 &ipr_trace_attr); 8970 scsi_remove_host(ioa_cfg->host); 8971 __ipr_remove(pdev); 8972 return rc; 8973 } 8974 8975 scsi_scan_host(ioa_cfg->host); 8976 ipr_scan_vsets(ioa_cfg); 8977 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 8978 ioa_cfg->allow_ml_add_del = 1; 8979 ioa_cfg->host->max_channel = IPR_VSET_BUS; 8980 schedule_work(&ioa_cfg->work_q); 8981 return 0; 8982} 8983 8984/** 8985 * ipr_shutdown - Shutdown handler. 8986 * @pdev: pci device struct 8987 * 8988 * This function is invoked upon system shutdown/reboot. It will issue 8989 * an adapter shutdown to the adapter to flush the write cache. 8990 * 8991 * Return value: 8992 * none 8993 **/ 8994static void ipr_shutdown(struct pci_dev *pdev) 8995{ 8996 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8997 unsigned long lock_flags = 0; 8998 8999 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 9000 while(ioa_cfg->in_reset_reload) { 9001 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 9002 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 9003 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 9004 } 9005 9006 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 9007 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 9008 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 9009} 9010 9011static struct pci_device_id ipr_pci_table[] __devinitdata = { 9012 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9013 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 9014 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9015 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 9016 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9017 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 9018 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9019 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 9020 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9021 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 9022 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9023 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 9024 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9025 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 9026 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9027 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 9028 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9029 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9030 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 9031 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9032 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 9033 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9034 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9035 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 9036 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9037 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9038 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 9039 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9040 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 9041 IPR_USE_LONG_TRANSOP_TIMEOUT}, 9042 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9043 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 9044 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9045 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9046 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 9047 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9048 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9049 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 9050 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9051 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, 9052 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9053 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 9054 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 9055 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 9056 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 9057 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9058 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 9059 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9060 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 9061 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9062 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9063 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 9064 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9065 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9066 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 9067 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9068 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 9069 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9070 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 9071 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9072 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, 9073 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9074 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 9075 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9076 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 9077 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9078 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 9079 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9080 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 }, 9081 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9082 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 9083 { } 9084}; 9085MODULE_DEVICE_TABLE(pci, ipr_pci_table); 9086 9087static struct pci_error_handlers ipr_err_handler = { 9088 .error_detected = ipr_pci_error_detected, 9089 .slot_reset = ipr_pci_slot_reset, 9090}; 9091 9092static struct pci_driver ipr_driver = { 9093 .name = IPR_NAME, 9094 .id_table = ipr_pci_table, 9095 .probe = ipr_probe, 9096 .remove = __devexit_p(ipr_remove), 9097 .shutdown = ipr_shutdown, 9098 .err_handler = &ipr_err_handler, 9099}; 9100 9101/** 9102 * ipr_halt_done - Shutdown prepare completion 9103 * 9104 * Return value: 9105 * none 9106 **/ 9107static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 9108{ 9109 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9110 9111 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 9112} 9113 9114/** 9115 * ipr_halt - Issue shutdown prepare to all adapters 9116 * 9117 * Return value: 9118 * NOTIFY_OK on success / NOTIFY_DONE on failure 9119 **/ 9120static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 9121{ 9122 struct ipr_cmnd *ipr_cmd; 9123 struct ipr_ioa_cfg *ioa_cfg; 9124 unsigned long flags = 0; 9125 9126 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 9127 return NOTIFY_DONE; 9128 9129 spin_lock(&ipr_driver_lock); 9130 9131 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 9132 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9133 if (!ioa_cfg->allow_cmds) { 9134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9135 continue; 9136 } 9137 9138 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 9139 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9140 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 9141 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 9142 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 9143 9144 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 9145 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9146 } 9147 spin_unlock(&ipr_driver_lock); 9148 9149 return NOTIFY_OK; 9150} 9151 9152static struct notifier_block ipr_notifier = { 9153 ipr_halt, NULL, 0 9154}; 9155 9156/** 9157 * ipr_init - Module entry point 9158 * 9159 * Return value: 9160 * 0 on success / negative value on failure 9161 **/ 9162static int __init ipr_init(void) 9163{ 9164 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 9165 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 9166 9167 register_reboot_notifier(&ipr_notifier); 9168 return pci_register_driver(&ipr_driver); 9169} 9170 9171/** 9172 * ipr_exit - Module unload 9173 * 9174 * Module unload entry point. 9175 * 9176 * Return value: 9177 * none 9178 **/ 9179static void __exit ipr_exit(void) 9180{ 9181 unregister_reboot_notifier(&ipr_notifier); 9182 pci_unregister_driver(&ipr_driver); 9183} 9184 9185module_init(ipr_init); 9186module_exit(ipr_exit); 9187