ipr.c revision 14ed9cc7e7b9a95d56c2bf91cab2f010968d6e73
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/vmalloc.h> 64#include <linux/ioport.h> 65#include <linux/delay.h> 66#include <linux/pci.h> 67#include <linux/wait.h> 68#include <linux/spinlock.h> 69#include <linux/sched.h> 70#include <linux/interrupt.h> 71#include <linux/blkdev.h> 72#include <linux/firmware.h> 73#include <linux/module.h> 74#include <linux/moduleparam.h> 75#include <linux/libata.h> 76#include <linux/hdreg.h> 77#include <linux/reboot.h> 78#include <linux/stringify.h> 79#include <asm/io.h> 80#include <asm/irq.h> 81#include <asm/processor.h> 82#include <scsi/scsi.h> 83#include <scsi/scsi_host.h> 84#include <scsi/scsi_tcq.h> 85#include <scsi/scsi_eh.h> 86#include <scsi/scsi_cmnd.h> 87#include "ipr.h" 88 89/* 90 * Global Data 91 */ 92static LIST_HEAD(ipr_ioa_head); 93static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 94static unsigned int ipr_max_speed = 1; 95static int ipr_testmode = 0; 96static unsigned int ipr_fastfail = 0; 97static unsigned int ipr_transop_timeout = 0; 98static unsigned int ipr_debug = 0; 99static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; 100static unsigned int ipr_dual_ioa_raid = 1; 101static DEFINE_SPINLOCK(ipr_driver_lock); 102 103/* This table describes the differences between DMA controller chips */ 104static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { 105 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ 106 .mailbox = 0x0042C, 107 .cache_line_size = 0x20, 108 { 109 .set_interrupt_mask_reg = 0x0022C, 110 .clr_interrupt_mask_reg = 0x00230, 111 .clr_interrupt_mask_reg32 = 0x00230, 112 .sense_interrupt_mask_reg = 0x0022C, 113 .sense_interrupt_mask_reg32 = 0x0022C, 114 .clr_interrupt_reg = 0x00228, 115 .clr_interrupt_reg32 = 0x00228, 116 .sense_interrupt_reg = 0x00224, 117 .sense_interrupt_reg32 = 0x00224, 118 .ioarrin_reg = 0x00404, 119 .sense_uproc_interrupt_reg = 0x00214, 120 .sense_uproc_interrupt_reg32 = 0x00214, 121 .set_uproc_interrupt_reg = 0x00214, 122 .set_uproc_interrupt_reg32 = 0x00214, 123 .clr_uproc_interrupt_reg = 0x00218, 124 .clr_uproc_interrupt_reg32 = 0x00218 125 } 126 }, 127 { /* Snipe and Scamp */ 128 .mailbox = 0x0052C, 129 .cache_line_size = 0x20, 130 { 131 .set_interrupt_mask_reg = 0x00288, 132 .clr_interrupt_mask_reg = 0x0028C, 133 .clr_interrupt_mask_reg32 = 0x0028C, 134 .sense_interrupt_mask_reg = 0x00288, 135 .sense_interrupt_mask_reg32 = 0x00288, 136 .clr_interrupt_reg = 0x00284, 137 .clr_interrupt_reg32 = 0x00284, 138 .sense_interrupt_reg = 0x00280, 139 .sense_interrupt_reg32 = 0x00280, 140 .ioarrin_reg = 0x00504, 141 .sense_uproc_interrupt_reg = 0x00290, 142 .sense_uproc_interrupt_reg32 = 0x00290, 143 .set_uproc_interrupt_reg = 0x00290, 144 .set_uproc_interrupt_reg32 = 0x00290, 145 .clr_uproc_interrupt_reg = 0x00294, 146 .clr_uproc_interrupt_reg32 = 0x00294 147 } 148 }, 149 { /* CRoC */ 150 .mailbox = 0x00044, 151 .cache_line_size = 0x20, 152 { 153 .set_interrupt_mask_reg = 0x00010, 154 .clr_interrupt_mask_reg = 0x00018, 155 .clr_interrupt_mask_reg32 = 0x0001C, 156 .sense_interrupt_mask_reg = 0x00010, 157 .sense_interrupt_mask_reg32 = 0x00014, 158 .clr_interrupt_reg = 0x00008, 159 .clr_interrupt_reg32 = 0x0000C, 160 .sense_interrupt_reg = 0x00000, 161 .sense_interrupt_reg32 = 0x00004, 162 .ioarrin_reg = 0x00070, 163 .sense_uproc_interrupt_reg = 0x00020, 164 .sense_uproc_interrupt_reg32 = 0x00024, 165 .set_uproc_interrupt_reg = 0x00020, 166 .set_uproc_interrupt_reg32 = 0x00024, 167 .clr_uproc_interrupt_reg = 0x00028, 168 .clr_uproc_interrupt_reg32 = 0x0002C, 169 .init_feedback_reg = 0x0005C, 170 .dump_addr_reg = 0x00064, 171 .dump_data_reg = 0x00068, 172 .endian_swap_reg = 0x00084 173 } 174 }, 175}; 176 177static const struct ipr_chip_t ipr_chip[] = { 178 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 180 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, 184 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, 185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, 186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } 187}; 188 189static int ipr_max_bus_speeds [] = { 190 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 191}; 192 193MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 194MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 195module_param_named(max_speed, ipr_max_speed, uint, 0); 196MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 197module_param_named(log_level, ipr_log_level, uint, 0); 198MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 199module_param_named(testmode, ipr_testmode, int, 0); 200MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 201module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); 202MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 203module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 204MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 205module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); 206MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 207module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 208MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 209module_param_named(max_devs, ipr_max_devs, int, 0); 210MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " 211 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); 212MODULE_LICENSE("GPL"); 213MODULE_VERSION(IPR_DRIVER_VERSION); 214 215/* A constant array of IOASCs/URCs/Error Messages */ 216static const 217struct ipr_error_table_t ipr_error_table[] = { 218 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 219 "8155: An unknown error was received"}, 220 {0x00330000, 0, 0, 221 "Soft underlength error"}, 222 {0x005A0000, 0, 0, 223 "Command to be cancelled not found"}, 224 {0x00808000, 0, 0, 225 "Qualified success"}, 226 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 227 "FFFE: Soft device bus error recovered by the IOA"}, 228 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 229 "4101: Soft device bus fabric error"}, 230 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, 231 "FFFC: Logical block guard error recovered by the device"}, 232 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, 233 "FFFC: Logical block reference tag error recovered by the device"}, 234 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, 235 "4171: Recovered scatter list tag / sequence number error"}, 236 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, 237 "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, 238 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, 239 "4171: Recovered logical block sequence number error on IOA to Host transfer"}, 240 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, 241 "FFFD: Recovered logical block reference tag error detected by the IOA"}, 242 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, 243 "FFFD: Logical block guard error recovered by the IOA"}, 244 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 245 "FFF9: Device sector reassign successful"}, 246 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 247 "FFF7: Media error recovered by device rewrite procedures"}, 248 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 249 "7001: IOA sector reassignment successful"}, 250 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 251 "FFF9: Soft media error. Sector reassignment recommended"}, 252 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 253 "FFF7: Media error recovered by IOA rewrite procedures"}, 254 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 255 "FF3D: Soft PCI bus error recovered by the IOA"}, 256 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 257 "FFF6: Device hardware error recovered by the IOA"}, 258 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 259 "FFF6: Device hardware error recovered by the device"}, 260 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 261 "FF3D: Soft IOA error recovered by the IOA"}, 262 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 263 "FFFA: Undefined device response recovered by the IOA"}, 264 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 265 "FFF6: Device bus error, message or command phase"}, 266 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 267 "FFFE: Task Management Function failed"}, 268 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 269 "FFF6: Failure prediction threshold exceeded"}, 270 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 271 "8009: Impending cache battery pack failure"}, 272 {0x02040400, 0, 0, 273 "34FF: Disk device format in progress"}, 274 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 275 "9070: IOA requested reset"}, 276 {0x023F0000, 0, 0, 277 "Synchronization required"}, 278 {0x024E0000, 0, 0, 279 "No ready, IOA shutdown"}, 280 {0x025A0000, 0, 0, 281 "Not ready, IOA has been shutdown"}, 282 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 283 "3020: Storage subsystem configuration error"}, 284 {0x03110B00, 0, 0, 285 "FFF5: Medium error, data unreadable, recommend reassign"}, 286 {0x03110C00, 0, 0, 287 "7000: Medium error, data unreadable, do not reassign"}, 288 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 289 "FFF3: Disk media format bad"}, 290 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 291 "3002: Addressed device failed to respond to selection"}, 292 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 293 "3100: Device bus error"}, 294 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 295 "3109: IOA timed out a device command"}, 296 {0x04088000, 0, 0, 297 "3120: SCSI bus is not operational"}, 298 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 299 "4100: Hard device bus fabric error"}, 300 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, 301 "310C: Logical block guard error detected by the device"}, 302 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, 303 "310C: Logical block reference tag error detected by the device"}, 304 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, 305 "4170: Scatter list tag / sequence number error"}, 306 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, 307 "8150: Logical block CRC error on IOA to Host transfer"}, 308 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, 309 "4170: Logical block sequence number error on IOA to Host transfer"}, 310 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, 311 "310D: Logical block reference tag error detected by the IOA"}, 312 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, 313 "310D: Logical block guard error detected by the IOA"}, 314 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 315 "9000: IOA reserved area data check"}, 316 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 317 "9001: IOA reserved area invalid data pattern"}, 318 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 319 "9002: IOA reserved area LRC error"}, 320 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, 321 "Hardware Error, IOA metadata access error"}, 322 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 323 "102E: Out of alternate sectors for disk storage"}, 324 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 325 "FFF4: Data transfer underlength error"}, 326 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 327 "FFF4: Data transfer overlength error"}, 328 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 329 "3400: Logical unit failure"}, 330 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 331 "FFF4: Device microcode is corrupt"}, 332 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 333 "8150: PCI bus error"}, 334 {0x04430000, 1, 0, 335 "Unsupported device bus message received"}, 336 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 337 "FFF4: Disk device problem"}, 338 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 339 "8150: Permanent IOA failure"}, 340 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 341 "3010: Disk device returned wrong response to IOA"}, 342 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 343 "8151: IOA microcode error"}, 344 {0x04448500, 0, 0, 345 "Device bus status error"}, 346 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 347 "8157: IOA error requiring IOA reset to recover"}, 348 {0x04448700, 0, 0, 349 "ATA device status error"}, 350 {0x04490000, 0, 0, 351 "Message reject received from the device"}, 352 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 353 "8008: A permanent cache battery pack failure occurred"}, 354 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 355 "9090: Disk unit has been modified after the last known status"}, 356 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 357 "9081: IOA detected device error"}, 358 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 359 "9082: IOA detected device error"}, 360 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 361 "3110: Device bus error, message or command phase"}, 362 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 363 "3110: SAS Command / Task Management Function failed"}, 364 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 365 "9091: Incorrect hardware configuration change has been detected"}, 366 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 367 "9073: Invalid multi-adapter configuration"}, 368 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 369 "4010: Incorrect connection between cascaded expanders"}, 370 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 371 "4020: Connections exceed IOA design limits"}, 372 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 373 "4030: Incorrect multipath connection"}, 374 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 375 "4110: Unsupported enclosure function"}, 376 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 377 "FFF4: Command to logical unit failed"}, 378 {0x05240000, 1, 0, 379 "Illegal request, invalid request type or request packet"}, 380 {0x05250000, 0, 0, 381 "Illegal request, invalid resource handle"}, 382 {0x05258000, 0, 0, 383 "Illegal request, commands not allowed to this device"}, 384 {0x05258100, 0, 0, 385 "Illegal request, command not allowed to a secondary adapter"}, 386 {0x05258200, 0, 0, 387 "Illegal request, command not allowed to a non-optimized resource"}, 388 {0x05260000, 0, 0, 389 "Illegal request, invalid field in parameter list"}, 390 {0x05260100, 0, 0, 391 "Illegal request, parameter not supported"}, 392 {0x05260200, 0, 0, 393 "Illegal request, parameter value invalid"}, 394 {0x052C0000, 0, 0, 395 "Illegal request, command sequence error"}, 396 {0x052C8000, 1, 0, 397 "Illegal request, dual adapter support not enabled"}, 398 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 399 "9031: Array protection temporarily suspended, protection resuming"}, 400 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 401 "9040: Array protection temporarily suspended, protection resuming"}, 402 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 403 "3140: Device bus not ready to ready transition"}, 404 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 405 "FFFB: SCSI bus was reset"}, 406 {0x06290500, 0, 0, 407 "FFFE: SCSI bus transition to single ended"}, 408 {0x06290600, 0, 0, 409 "FFFE: SCSI bus transition to LVD"}, 410 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 411 "FFFB: SCSI bus was reset by another initiator"}, 412 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 413 "3029: A device replacement has occurred"}, 414 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 415 "9051: IOA cache data exists for a missing or failed device"}, 416 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 417 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 418 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 419 "9025: Disk unit is not supported at its physical location"}, 420 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 421 "3020: IOA detected a SCSI bus configuration error"}, 422 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 423 "3150: SCSI bus configuration error"}, 424 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 425 "9074: Asymmetric advanced function disk configuration"}, 426 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 427 "4040: Incomplete multipath connection between IOA and enclosure"}, 428 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 429 "4041: Incomplete multipath connection between enclosure and device"}, 430 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 431 "9075: Incomplete multipath connection between IOA and remote IOA"}, 432 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 433 "9076: Configuration error, missing remote IOA"}, 434 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 435 "4050: Enclosure does not support a required multipath function"}, 436 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, 437 "4070: Logically bad block written on device"}, 438 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 439 "9041: Array protection temporarily suspended"}, 440 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 441 "9042: Corrupt array parity detected on specified device"}, 442 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 443 "9030: Array no longer protected due to missing or failed disk unit"}, 444 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 445 "9071: Link operational transition"}, 446 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 447 "9072: Link not operational transition"}, 448 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 449 "9032: Array exposed but still protected"}, 450 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 451 "70DD: Device forced failed by disrupt device command"}, 452 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 453 "4061: Multipath redundancy level got better"}, 454 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 455 "4060: Multipath redundancy level got worse"}, 456 {0x07270000, 0, 0, 457 "Failure due to other device"}, 458 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 459 "9008: IOA does not support functions expected by devices"}, 460 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 461 "9010: Cache data associated with attached devices cannot be found"}, 462 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 463 "9011: Cache data belongs to devices other than those attached"}, 464 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 465 "9020: Array missing 2 or more devices with only 1 device present"}, 466 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 467 "9021: Array missing 2 or more devices with 2 or more devices present"}, 468 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 469 "9022: Exposed array is missing a required device"}, 470 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 471 "9023: Array member(s) not at required physical locations"}, 472 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 473 "9024: Array not functional due to present hardware configuration"}, 474 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 475 "9026: Array not functional due to present hardware configuration"}, 476 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 477 "9027: Array is missing a device and parity is out of sync"}, 478 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 479 "9028: Maximum number of arrays already exist"}, 480 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 481 "9050: Required cache data cannot be located for a disk unit"}, 482 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 483 "9052: Cache data exists for a device that has been modified"}, 484 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 485 "9054: IOA resources not available due to previous problems"}, 486 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 487 "9092: Disk unit requires initialization before use"}, 488 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 489 "9029: Incorrect hardware configuration change has been detected"}, 490 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 491 "9060: One or more disk pairs are missing from an array"}, 492 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 493 "9061: One or more disks are missing from an array"}, 494 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 495 "9062: One or more disks are missing from an array"}, 496 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 497 "9063: Maximum number of functional arrays has been exceeded"}, 498 {0x0B260000, 0, 0, 499 "Aborted command, invalid descriptor"}, 500 {0x0B5A0000, 0, 0, 501 "Command terminated by host"} 502}; 503 504static const struct ipr_ses_table_entry ipr_ses_table[] = { 505 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 506 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 507 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 508 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 509 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 510 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 511 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 512 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 513 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 514 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 515 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 516 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 517 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 518}; 519 520/* 521 * Function Prototypes 522 */ 523static int ipr_reset_alert(struct ipr_cmnd *); 524static void ipr_process_ccn(struct ipr_cmnd *); 525static void ipr_process_error(struct ipr_cmnd *); 526static void ipr_reset_ioa_job(struct ipr_cmnd *); 527static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 528 enum ipr_shutdown_type); 529 530#ifdef CONFIG_SCSI_IPR_TRACE 531/** 532 * ipr_trc_hook - Add a trace entry to the driver trace 533 * @ipr_cmd: ipr command struct 534 * @type: trace type 535 * @add_data: additional data 536 * 537 * Return value: 538 * none 539 **/ 540static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 541 u8 type, u32 add_data) 542{ 543 struct ipr_trace_entry *trace_entry; 544 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 545 546 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 547 trace_entry->time = jiffies; 548 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 549 trace_entry->type = type; 550 if (ipr_cmd->ioa_cfg->sis64) 551 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; 552 else 553 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; 554 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 555 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 556 trace_entry->u.add_data = add_data; 557} 558#else 559#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 560#endif 561 562/** 563 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 564 * @ipr_cmd: ipr command struct 565 * 566 * Return value: 567 * none 568 **/ 569static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 570{ 571 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 572 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 573 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 574 dma_addr_t dma_addr = ipr_cmd->dma_addr; 575 576 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 577 ioarcb->data_transfer_length = 0; 578 ioarcb->read_data_transfer_length = 0; 579 ioarcb->ioadl_len = 0; 580 ioarcb->read_ioadl_len = 0; 581 582 if (ipr_cmd->ioa_cfg->sis64) { 583 ioarcb->u.sis64_addr_data.data_ioadl_addr = 584 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 585 ioasa64->u.gata.status = 0; 586 } else { 587 ioarcb->write_ioadl_addr = 588 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 589 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 590 ioasa->u.gata.status = 0; 591 } 592 593 ioasa->hdr.ioasc = 0; 594 ioasa->hdr.residual_data_len = 0; 595 ipr_cmd->scsi_cmd = NULL; 596 ipr_cmd->qc = NULL; 597 ipr_cmd->sense_buffer[0] = 0; 598 ipr_cmd->dma_use_sg = 0; 599} 600 601/** 602 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 603 * @ipr_cmd: ipr command struct 604 * 605 * Return value: 606 * none 607 **/ 608static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 609{ 610 ipr_reinit_ipr_cmnd(ipr_cmd); 611 ipr_cmd->u.scratch = 0; 612 ipr_cmd->sibling = NULL; 613 init_timer(&ipr_cmd->timer); 614} 615 616/** 617 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 618 * @ioa_cfg: ioa config struct 619 * 620 * Return value: 621 * pointer to ipr command struct 622 **/ 623static 624struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 625{ 626 struct ipr_cmnd *ipr_cmd; 627 628 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 629 list_del(&ipr_cmd->queue); 630 ipr_init_ipr_cmnd(ipr_cmd); 631 632 return ipr_cmd; 633} 634 635/** 636 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 637 * @ioa_cfg: ioa config struct 638 * @clr_ints: interrupts to clear 639 * 640 * This function masks all interrupts on the adapter, then clears the 641 * interrupts specified in the mask 642 * 643 * Return value: 644 * none 645 **/ 646static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 647 u32 clr_ints) 648{ 649 volatile u32 int_reg; 650 651 /* Stop new interrupts */ 652 ioa_cfg->allow_interrupts = 0; 653 654 /* Set interrupt mask to stop all new interrupts */ 655 if (ioa_cfg->sis64) 656 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); 657 else 658 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 659 660 /* Clear any pending interrupts */ 661 if (ioa_cfg->sis64) 662 writel(~0, ioa_cfg->regs.clr_interrupt_reg); 663 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); 664 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 665} 666 667/** 668 * ipr_save_pcix_cmd_reg - Save PCI-X command register 669 * @ioa_cfg: ioa config struct 670 * 671 * Return value: 672 * 0 on success / -EIO on failure 673 **/ 674static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 675{ 676 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 677 678 if (pcix_cmd_reg == 0) 679 return 0; 680 681 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 682 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 683 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 684 return -EIO; 685 } 686 687 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 688 return 0; 689} 690 691/** 692 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 693 * @ioa_cfg: ioa config struct 694 * 695 * Return value: 696 * 0 on success / -EIO on failure 697 **/ 698static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 699{ 700 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 701 702 if (pcix_cmd_reg) { 703 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 704 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 705 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 706 return -EIO; 707 } 708 } 709 710 return 0; 711} 712 713/** 714 * ipr_sata_eh_done - done function for aborted SATA commands 715 * @ipr_cmd: ipr command struct 716 * 717 * This function is invoked for ops generated to SATA 718 * devices which are being aborted. 719 * 720 * Return value: 721 * none 722 **/ 723static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 724{ 725 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 726 struct ata_queued_cmd *qc = ipr_cmd->qc; 727 struct ipr_sata_port *sata_port = qc->ap->private_data; 728 729 qc->err_mask |= AC_ERR_OTHER; 730 sata_port->ioasa.status |= ATA_BUSY; 731 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 732 ata_qc_complete(qc); 733} 734 735/** 736 * ipr_scsi_eh_done - mid-layer done function for aborted ops 737 * @ipr_cmd: ipr command struct 738 * 739 * This function is invoked by the interrupt handler for 740 * ops generated by the SCSI mid-layer which are being aborted. 741 * 742 * Return value: 743 * none 744 **/ 745static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 746{ 747 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 748 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 749 750 scsi_cmd->result |= (DID_ERROR << 16); 751 752 scsi_dma_unmap(ipr_cmd->scsi_cmd); 753 scsi_cmd->scsi_done(scsi_cmd); 754 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 755} 756 757/** 758 * ipr_fail_all_ops - Fails all outstanding ops. 759 * @ioa_cfg: ioa config struct 760 * 761 * This function fails all outstanding ops. 762 * 763 * Return value: 764 * none 765 **/ 766static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 767{ 768 struct ipr_cmnd *ipr_cmd, *temp; 769 770 ENTER; 771 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 772 list_del(&ipr_cmd->queue); 773 774 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 775 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID); 776 777 if (ipr_cmd->scsi_cmd) 778 ipr_cmd->done = ipr_scsi_eh_done; 779 else if (ipr_cmd->qc) 780 ipr_cmd->done = ipr_sata_eh_done; 781 782 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 783 del_timer(&ipr_cmd->timer); 784 ipr_cmd->done(ipr_cmd); 785 } 786 787 LEAVE; 788} 789 790/** 791 * ipr_send_command - Send driver initiated requests. 792 * @ipr_cmd: ipr command struct 793 * 794 * This function sends a command to the adapter using the correct write call. 795 * In the case of sis64, calculate the ioarcb size required. Then or in the 796 * appropriate bits. 797 * 798 * Return value: 799 * none 800 **/ 801static void ipr_send_command(struct ipr_cmnd *ipr_cmd) 802{ 803 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 804 dma_addr_t send_dma_addr = ipr_cmd->dma_addr; 805 806 if (ioa_cfg->sis64) { 807 /* The default size is 256 bytes */ 808 send_dma_addr |= 0x1; 809 810 /* If the number of ioadls * size of ioadl > 128 bytes, 811 then use a 512 byte ioarcb */ 812 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) 813 send_dma_addr |= 0x4; 814 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 815 } else 816 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 817} 818 819/** 820 * ipr_do_req - Send driver initiated requests. 821 * @ipr_cmd: ipr command struct 822 * @done: done function 823 * @timeout_func: timeout function 824 * @timeout: timeout value 825 * 826 * This function sends the specified command to the adapter with the 827 * timeout given. The done function is invoked on command completion. 828 * 829 * Return value: 830 * none 831 **/ 832static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 833 void (*done) (struct ipr_cmnd *), 834 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 835{ 836 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 837 838 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 839 840 ipr_cmd->done = done; 841 842 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 843 ipr_cmd->timer.expires = jiffies + timeout; 844 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 845 846 add_timer(&ipr_cmd->timer); 847 848 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 849 850 mb(); 851 852 ipr_send_command(ipr_cmd); 853} 854 855/** 856 * ipr_internal_cmd_done - Op done function for an internally generated op. 857 * @ipr_cmd: ipr command struct 858 * 859 * This function is the op done function for an internally generated, 860 * blocking op. It simply wakes the sleeping thread. 861 * 862 * Return value: 863 * none 864 **/ 865static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 866{ 867 if (ipr_cmd->sibling) 868 ipr_cmd->sibling = NULL; 869 else 870 complete(&ipr_cmd->completion); 871} 872 873/** 874 * ipr_init_ioadl - initialize the ioadl for the correct SIS type 875 * @ipr_cmd: ipr command struct 876 * @dma_addr: dma address 877 * @len: transfer length 878 * @flags: ioadl flag value 879 * 880 * This function initializes an ioadl in the case where there is only a single 881 * descriptor. 882 * 883 * Return value: 884 * nothing 885 **/ 886static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, 887 u32 len, int flags) 888{ 889 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 890 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 891 892 ipr_cmd->dma_use_sg = 1; 893 894 if (ipr_cmd->ioa_cfg->sis64) { 895 ioadl64->flags = cpu_to_be32(flags); 896 ioadl64->data_len = cpu_to_be32(len); 897 ioadl64->address = cpu_to_be64(dma_addr); 898 899 ipr_cmd->ioarcb.ioadl_len = 900 cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); 901 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 902 } else { 903 ioadl->flags_and_data_len = cpu_to_be32(flags | len); 904 ioadl->address = cpu_to_be32(dma_addr); 905 906 if (flags == IPR_IOADL_FLAGS_READ_LAST) { 907 ipr_cmd->ioarcb.read_ioadl_len = 908 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 909 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); 910 } else { 911 ipr_cmd->ioarcb.ioadl_len = 912 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 913 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 914 } 915 } 916} 917 918/** 919 * ipr_send_blocking_cmd - Send command and sleep on its completion. 920 * @ipr_cmd: ipr command struct 921 * @timeout_func: function to invoke if command times out 922 * @timeout: timeout 923 * 924 * Return value: 925 * none 926 **/ 927static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 928 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 929 u32 timeout) 930{ 931 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 932 933 init_completion(&ipr_cmd->completion); 934 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 935 936 spin_unlock_irq(ioa_cfg->host->host_lock); 937 wait_for_completion(&ipr_cmd->completion); 938 spin_lock_irq(ioa_cfg->host->host_lock); 939} 940 941/** 942 * ipr_send_hcam - Send an HCAM to the adapter. 943 * @ioa_cfg: ioa config struct 944 * @type: HCAM type 945 * @hostrcb: hostrcb struct 946 * 947 * This function will send a Host Controlled Async command to the adapter. 948 * If HCAMs are currently not allowed to be issued to the adapter, it will 949 * place the hostrcb on the free queue. 950 * 951 * Return value: 952 * none 953 **/ 954static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 955 struct ipr_hostrcb *hostrcb) 956{ 957 struct ipr_cmnd *ipr_cmd; 958 struct ipr_ioarcb *ioarcb; 959 960 if (ioa_cfg->allow_cmds) { 961 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 962 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 963 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 964 965 ipr_cmd->u.hostrcb = hostrcb; 966 ioarcb = &ipr_cmd->ioarcb; 967 968 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 969 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 970 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 971 ioarcb->cmd_pkt.cdb[1] = type; 972 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 973 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 974 975 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, 976 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); 977 978 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 979 ipr_cmd->done = ipr_process_ccn; 980 else 981 ipr_cmd->done = ipr_process_error; 982 983 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 984 985 mb(); 986 987 ipr_send_command(ipr_cmd); 988 } else { 989 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 990 } 991} 992 993/** 994 * ipr_update_ata_class - Update the ata class in the resource entry 995 * @res: resource entry struct 996 * @proto: cfgte device bus protocol value 997 * 998 * Return value: 999 * none 1000 **/ 1001static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) 1002{ 1003 switch(proto) { 1004 case IPR_PROTO_SATA: 1005 case IPR_PROTO_SAS_STP: 1006 res->ata_class = ATA_DEV_ATA; 1007 break; 1008 case IPR_PROTO_SATA_ATAPI: 1009 case IPR_PROTO_SAS_STP_ATAPI: 1010 res->ata_class = ATA_DEV_ATAPI; 1011 break; 1012 default: 1013 res->ata_class = ATA_DEV_UNKNOWN; 1014 break; 1015 }; 1016} 1017 1018/** 1019 * ipr_init_res_entry - Initialize a resource entry struct. 1020 * @res: resource entry struct 1021 * @cfgtew: config table entry wrapper struct 1022 * 1023 * Return value: 1024 * none 1025 **/ 1026static void ipr_init_res_entry(struct ipr_resource_entry *res, 1027 struct ipr_config_table_entry_wrapper *cfgtew) 1028{ 1029 int found = 0; 1030 unsigned int proto; 1031 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1032 struct ipr_resource_entry *gscsi_res = NULL; 1033 1034 res->needs_sync_complete = 0; 1035 res->in_erp = 0; 1036 res->add_to_ml = 0; 1037 res->del_from_ml = 0; 1038 res->resetting_device = 0; 1039 res->sdev = NULL; 1040 res->sata_port = NULL; 1041 1042 if (ioa_cfg->sis64) { 1043 proto = cfgtew->u.cfgte64->proto; 1044 res->res_flags = cfgtew->u.cfgte64->res_flags; 1045 res->qmodel = IPR_QUEUEING_MODEL64(res); 1046 res->type = cfgtew->u.cfgte64->res_type; 1047 1048 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1049 sizeof(res->res_path)); 1050 1051 res->bus = 0; 1052 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1053 sizeof(res->dev_lun.scsi_lun)); 1054 res->lun = scsilun_to_int(&res->dev_lun); 1055 1056 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1057 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { 1058 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { 1059 found = 1; 1060 res->target = gscsi_res->target; 1061 break; 1062 } 1063 } 1064 if (!found) { 1065 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1066 ioa_cfg->max_devs_supported); 1067 set_bit(res->target, ioa_cfg->target_ids); 1068 } 1069 } else if (res->type == IPR_RES_TYPE_IOAFP) { 1070 res->bus = IPR_IOAFP_VIRTUAL_BUS; 1071 res->target = 0; 1072 } else if (res->type == IPR_RES_TYPE_ARRAY) { 1073 res->bus = IPR_ARRAY_VIRTUAL_BUS; 1074 res->target = find_first_zero_bit(ioa_cfg->array_ids, 1075 ioa_cfg->max_devs_supported); 1076 set_bit(res->target, ioa_cfg->array_ids); 1077 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { 1078 res->bus = IPR_VSET_VIRTUAL_BUS; 1079 res->target = find_first_zero_bit(ioa_cfg->vset_ids, 1080 ioa_cfg->max_devs_supported); 1081 set_bit(res->target, ioa_cfg->vset_ids); 1082 } else { 1083 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1084 ioa_cfg->max_devs_supported); 1085 set_bit(res->target, ioa_cfg->target_ids); 1086 } 1087 } else { 1088 proto = cfgtew->u.cfgte->proto; 1089 res->qmodel = IPR_QUEUEING_MODEL(res); 1090 res->flags = cfgtew->u.cfgte->flags; 1091 if (res->flags & IPR_IS_IOA_RESOURCE) 1092 res->type = IPR_RES_TYPE_IOAFP; 1093 else 1094 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1095 1096 res->bus = cfgtew->u.cfgte->res_addr.bus; 1097 res->target = cfgtew->u.cfgte->res_addr.target; 1098 res->lun = cfgtew->u.cfgte->res_addr.lun; 1099 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn); 1100 } 1101 1102 ipr_update_ata_class(res, proto); 1103} 1104 1105/** 1106 * ipr_is_same_device - Determine if two devices are the same. 1107 * @res: resource entry struct 1108 * @cfgtew: config table entry wrapper struct 1109 * 1110 * Return value: 1111 * 1 if the devices are the same / 0 otherwise 1112 **/ 1113static int ipr_is_same_device(struct ipr_resource_entry *res, 1114 struct ipr_config_table_entry_wrapper *cfgtew) 1115{ 1116 if (res->ioa_cfg->sis64) { 1117 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, 1118 sizeof(cfgtew->u.cfgte64->dev_id)) && 1119 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1120 sizeof(cfgtew->u.cfgte64->lun))) { 1121 return 1; 1122 } 1123 } else { 1124 if (res->bus == cfgtew->u.cfgte->res_addr.bus && 1125 res->target == cfgtew->u.cfgte->res_addr.target && 1126 res->lun == cfgtew->u.cfgte->res_addr.lun) 1127 return 1; 1128 } 1129 1130 return 0; 1131} 1132 1133/** 1134 * ipr_format_res_path - Format the resource path for printing. 1135 * @res_path: resource path 1136 * @buf: buffer 1137 * 1138 * Return value: 1139 * pointer to buffer 1140 **/ 1141static char *ipr_format_res_path(u8 *res_path, char *buffer, int len) 1142{ 1143 int i; 1144 char *p = buffer; 1145 1146 *p = '\0'; 1147 p += snprintf(p, buffer + len - p, "%02X", res_path[0]); 1148 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++) 1149 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]); 1150 1151 return buffer; 1152} 1153 1154/** 1155 * ipr_update_res_entry - Update the resource entry. 1156 * @res: resource entry struct 1157 * @cfgtew: config table entry wrapper struct 1158 * 1159 * Return value: 1160 * none 1161 **/ 1162static void ipr_update_res_entry(struct ipr_resource_entry *res, 1163 struct ipr_config_table_entry_wrapper *cfgtew) 1164{ 1165 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1166 unsigned int proto; 1167 int new_path = 0; 1168 1169 if (res->ioa_cfg->sis64) { 1170 res->flags = cfgtew->u.cfgte64->flags; 1171 res->res_flags = cfgtew->u.cfgte64->res_flags; 1172 res->type = cfgtew->u.cfgte64->res_type; 1173 1174 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, 1175 sizeof(struct ipr_std_inq_data)); 1176 1177 res->qmodel = IPR_QUEUEING_MODEL64(res); 1178 proto = cfgtew->u.cfgte64->proto; 1179 res->res_handle = cfgtew->u.cfgte64->res_handle; 1180 res->dev_id = cfgtew->u.cfgte64->dev_id; 1181 1182 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1183 sizeof(res->dev_lun.scsi_lun)); 1184 1185 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, 1186 sizeof(res->res_path))) { 1187 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1188 sizeof(res->res_path)); 1189 new_path = 1; 1190 } 1191 1192 if (res->sdev && new_path) 1193 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", 1194 ipr_format_res_path(res->res_path, buffer, 1195 sizeof(buffer))); 1196 } else { 1197 res->flags = cfgtew->u.cfgte->flags; 1198 if (res->flags & IPR_IS_IOA_RESOURCE) 1199 res->type = IPR_RES_TYPE_IOAFP; 1200 else 1201 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1202 1203 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, 1204 sizeof(struct ipr_std_inq_data)); 1205 1206 res->qmodel = IPR_QUEUEING_MODEL(res); 1207 proto = cfgtew->u.cfgte->proto; 1208 res->res_handle = cfgtew->u.cfgte->res_handle; 1209 } 1210 1211 ipr_update_ata_class(res, proto); 1212} 1213 1214/** 1215 * ipr_clear_res_target - Clear the bit in the bit map representing the target 1216 * for the resource. 1217 * @res: resource entry struct 1218 * @cfgtew: config table entry wrapper struct 1219 * 1220 * Return value: 1221 * none 1222 **/ 1223static void ipr_clear_res_target(struct ipr_resource_entry *res) 1224{ 1225 struct ipr_resource_entry *gscsi_res = NULL; 1226 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1227 1228 if (!ioa_cfg->sis64) 1229 return; 1230 1231 if (res->bus == IPR_ARRAY_VIRTUAL_BUS) 1232 clear_bit(res->target, ioa_cfg->array_ids); 1233 else if (res->bus == IPR_VSET_VIRTUAL_BUS) 1234 clear_bit(res->target, ioa_cfg->vset_ids); 1235 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1236 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) 1237 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) 1238 return; 1239 clear_bit(res->target, ioa_cfg->target_ids); 1240 1241 } else if (res->bus == 0) 1242 clear_bit(res->target, ioa_cfg->target_ids); 1243} 1244 1245/** 1246 * ipr_handle_config_change - Handle a config change from the adapter 1247 * @ioa_cfg: ioa config struct 1248 * @hostrcb: hostrcb 1249 * 1250 * Return value: 1251 * none 1252 **/ 1253static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 1254 struct ipr_hostrcb *hostrcb) 1255{ 1256 struct ipr_resource_entry *res = NULL; 1257 struct ipr_config_table_entry_wrapper cfgtew; 1258 __be32 cc_res_handle; 1259 1260 u32 is_ndn = 1; 1261 1262 if (ioa_cfg->sis64) { 1263 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; 1264 cc_res_handle = cfgtew.u.cfgte64->res_handle; 1265 } else { 1266 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; 1267 cc_res_handle = cfgtew.u.cfgte->res_handle; 1268 } 1269 1270 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1271 if (res->res_handle == cc_res_handle) { 1272 is_ndn = 0; 1273 break; 1274 } 1275 } 1276 1277 if (is_ndn) { 1278 if (list_empty(&ioa_cfg->free_res_q)) { 1279 ipr_send_hcam(ioa_cfg, 1280 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 1281 hostrcb); 1282 return; 1283 } 1284 1285 res = list_entry(ioa_cfg->free_res_q.next, 1286 struct ipr_resource_entry, queue); 1287 1288 list_del(&res->queue); 1289 ipr_init_res_entry(res, &cfgtew); 1290 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 1291 } 1292 1293 ipr_update_res_entry(res, &cfgtew); 1294 1295 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 1296 if (res->sdev) { 1297 res->del_from_ml = 1; 1298 res->res_handle = IPR_INVALID_RES_HANDLE; 1299 if (ioa_cfg->allow_ml_add_del) 1300 schedule_work(&ioa_cfg->work_q); 1301 } else { 1302 ipr_clear_res_target(res); 1303 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 1304 } 1305 } else if (!res->sdev || res->del_from_ml) { 1306 res->add_to_ml = 1; 1307 if (ioa_cfg->allow_ml_add_del) 1308 schedule_work(&ioa_cfg->work_q); 1309 } 1310 1311 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1312} 1313 1314/** 1315 * ipr_process_ccn - Op done function for a CCN. 1316 * @ipr_cmd: ipr command struct 1317 * 1318 * This function is the op done function for a configuration 1319 * change notification host controlled async from the adapter. 1320 * 1321 * Return value: 1322 * none 1323 **/ 1324static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 1325{ 1326 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1327 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1328 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 1329 1330 list_del(&hostrcb->queue); 1331 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1332 1333 if (ioasc) { 1334 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 1335 dev_err(&ioa_cfg->pdev->dev, 1336 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1337 1338 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1339 } else { 1340 ipr_handle_config_change(ioa_cfg, hostrcb); 1341 } 1342} 1343 1344/** 1345 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 1346 * @i: index into buffer 1347 * @buf: string to modify 1348 * 1349 * This function will strip all trailing whitespace, pad the end 1350 * of the string with a single space, and NULL terminate the string. 1351 * 1352 * Return value: 1353 * new length of string 1354 **/ 1355static int strip_and_pad_whitespace(int i, char *buf) 1356{ 1357 while (i && buf[i] == ' ') 1358 i--; 1359 buf[i+1] = ' '; 1360 buf[i+2] = '\0'; 1361 return i + 2; 1362} 1363 1364/** 1365 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 1366 * @prefix: string to print at start of printk 1367 * @hostrcb: hostrcb pointer 1368 * @vpd: vendor/product id/sn struct 1369 * 1370 * Return value: 1371 * none 1372 **/ 1373static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1374 struct ipr_vpd *vpd) 1375{ 1376 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 1377 int i = 0; 1378 1379 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1380 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 1381 1382 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 1383 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 1384 1385 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1386 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1387 1388 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1389} 1390 1391/** 1392 * ipr_log_vpd - Log the passed VPD to the error log. 1393 * @vpd: vendor/product id/sn struct 1394 * 1395 * Return value: 1396 * none 1397 **/ 1398static void ipr_log_vpd(struct ipr_vpd *vpd) 1399{ 1400 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1401 + IPR_SERIAL_NUM_LEN]; 1402 1403 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1404 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1405 IPR_PROD_ID_LEN); 1406 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1407 ipr_err("Vendor/Product ID: %s\n", buffer); 1408 1409 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1410 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1411 ipr_err(" Serial Number: %s\n", buffer); 1412} 1413 1414/** 1415 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1416 * @prefix: string to print at start of printk 1417 * @hostrcb: hostrcb pointer 1418 * @vpd: vendor/product id/sn/wwn struct 1419 * 1420 * Return value: 1421 * none 1422 **/ 1423static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1424 struct ipr_ext_vpd *vpd) 1425{ 1426 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1427 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1428 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1429} 1430 1431/** 1432 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1433 * @vpd: vendor/product id/sn/wwn struct 1434 * 1435 * Return value: 1436 * none 1437 **/ 1438static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1439{ 1440 ipr_log_vpd(&vpd->vpd); 1441 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1442 be32_to_cpu(vpd->wwid[1])); 1443} 1444 1445/** 1446 * ipr_log_enhanced_cache_error - Log a cache error. 1447 * @ioa_cfg: ioa config struct 1448 * @hostrcb: hostrcb struct 1449 * 1450 * Return value: 1451 * none 1452 **/ 1453static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1454 struct ipr_hostrcb *hostrcb) 1455{ 1456 struct ipr_hostrcb_type_12_error *error; 1457 1458 if (ioa_cfg->sis64) 1459 error = &hostrcb->hcam.u.error64.u.type_12_error; 1460 else 1461 error = &hostrcb->hcam.u.error.u.type_12_error; 1462 1463 ipr_err("-----Current Configuration-----\n"); 1464 ipr_err("Cache Directory Card Information:\n"); 1465 ipr_log_ext_vpd(&error->ioa_vpd); 1466 ipr_err("Adapter Card Information:\n"); 1467 ipr_log_ext_vpd(&error->cfc_vpd); 1468 1469 ipr_err("-----Expected Configuration-----\n"); 1470 ipr_err("Cache Directory Card Information:\n"); 1471 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1472 ipr_err("Adapter Card Information:\n"); 1473 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1474 1475 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1476 be32_to_cpu(error->ioa_data[0]), 1477 be32_to_cpu(error->ioa_data[1]), 1478 be32_to_cpu(error->ioa_data[2])); 1479} 1480 1481/** 1482 * ipr_log_cache_error - Log a cache error. 1483 * @ioa_cfg: ioa config struct 1484 * @hostrcb: hostrcb struct 1485 * 1486 * Return value: 1487 * none 1488 **/ 1489static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1490 struct ipr_hostrcb *hostrcb) 1491{ 1492 struct ipr_hostrcb_type_02_error *error = 1493 &hostrcb->hcam.u.error.u.type_02_error; 1494 1495 ipr_err("-----Current Configuration-----\n"); 1496 ipr_err("Cache Directory Card Information:\n"); 1497 ipr_log_vpd(&error->ioa_vpd); 1498 ipr_err("Adapter Card Information:\n"); 1499 ipr_log_vpd(&error->cfc_vpd); 1500 1501 ipr_err("-----Expected Configuration-----\n"); 1502 ipr_err("Cache Directory Card Information:\n"); 1503 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1504 ipr_err("Adapter Card Information:\n"); 1505 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1506 1507 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1508 be32_to_cpu(error->ioa_data[0]), 1509 be32_to_cpu(error->ioa_data[1]), 1510 be32_to_cpu(error->ioa_data[2])); 1511} 1512 1513/** 1514 * ipr_log_enhanced_config_error - Log a configuration error. 1515 * @ioa_cfg: ioa config struct 1516 * @hostrcb: hostrcb struct 1517 * 1518 * Return value: 1519 * none 1520 **/ 1521static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1522 struct ipr_hostrcb *hostrcb) 1523{ 1524 int errors_logged, i; 1525 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1526 struct ipr_hostrcb_type_13_error *error; 1527 1528 error = &hostrcb->hcam.u.error.u.type_13_error; 1529 errors_logged = be32_to_cpu(error->errors_logged); 1530 1531 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1532 be32_to_cpu(error->errors_detected), errors_logged); 1533 1534 dev_entry = error->dev; 1535 1536 for (i = 0; i < errors_logged; i++, dev_entry++) { 1537 ipr_err_separator; 1538 1539 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1540 ipr_log_ext_vpd(&dev_entry->vpd); 1541 1542 ipr_err("-----New Device Information-----\n"); 1543 ipr_log_ext_vpd(&dev_entry->new_vpd); 1544 1545 ipr_err("Cache Directory Card Information:\n"); 1546 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1547 1548 ipr_err("Adapter Card Information:\n"); 1549 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1550 } 1551} 1552 1553/** 1554 * ipr_log_sis64_config_error - Log a device error. 1555 * @ioa_cfg: ioa config struct 1556 * @hostrcb: hostrcb struct 1557 * 1558 * Return value: 1559 * none 1560 **/ 1561static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, 1562 struct ipr_hostrcb *hostrcb) 1563{ 1564 int errors_logged, i; 1565 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; 1566 struct ipr_hostrcb_type_23_error *error; 1567 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1568 1569 error = &hostrcb->hcam.u.error64.u.type_23_error; 1570 errors_logged = be32_to_cpu(error->errors_logged); 1571 1572 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1573 be32_to_cpu(error->errors_detected), errors_logged); 1574 1575 dev_entry = error->dev; 1576 1577 for (i = 0; i < errors_logged; i++, dev_entry++) { 1578 ipr_err_separator; 1579 1580 ipr_err("Device %d : %s", i + 1, 1581 ipr_format_res_path(dev_entry->res_path, buffer, 1582 sizeof(buffer))); 1583 ipr_log_ext_vpd(&dev_entry->vpd); 1584 1585 ipr_err("-----New Device Information-----\n"); 1586 ipr_log_ext_vpd(&dev_entry->new_vpd); 1587 1588 ipr_err("Cache Directory Card Information:\n"); 1589 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1590 1591 ipr_err("Adapter Card Information:\n"); 1592 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1593 } 1594} 1595 1596/** 1597 * ipr_log_config_error - Log a configuration error. 1598 * @ioa_cfg: ioa config struct 1599 * @hostrcb: hostrcb struct 1600 * 1601 * Return value: 1602 * none 1603 **/ 1604static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1605 struct ipr_hostrcb *hostrcb) 1606{ 1607 int errors_logged, i; 1608 struct ipr_hostrcb_device_data_entry *dev_entry; 1609 struct ipr_hostrcb_type_03_error *error; 1610 1611 error = &hostrcb->hcam.u.error.u.type_03_error; 1612 errors_logged = be32_to_cpu(error->errors_logged); 1613 1614 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1615 be32_to_cpu(error->errors_detected), errors_logged); 1616 1617 dev_entry = error->dev; 1618 1619 for (i = 0; i < errors_logged; i++, dev_entry++) { 1620 ipr_err_separator; 1621 1622 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1623 ipr_log_vpd(&dev_entry->vpd); 1624 1625 ipr_err("-----New Device Information-----\n"); 1626 ipr_log_vpd(&dev_entry->new_vpd); 1627 1628 ipr_err("Cache Directory Card Information:\n"); 1629 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1630 1631 ipr_err("Adapter Card Information:\n"); 1632 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1633 1634 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1635 be32_to_cpu(dev_entry->ioa_data[0]), 1636 be32_to_cpu(dev_entry->ioa_data[1]), 1637 be32_to_cpu(dev_entry->ioa_data[2]), 1638 be32_to_cpu(dev_entry->ioa_data[3]), 1639 be32_to_cpu(dev_entry->ioa_data[4])); 1640 } 1641} 1642 1643/** 1644 * ipr_log_enhanced_array_error - Log an array configuration error. 1645 * @ioa_cfg: ioa config struct 1646 * @hostrcb: hostrcb struct 1647 * 1648 * Return value: 1649 * none 1650 **/ 1651static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1652 struct ipr_hostrcb *hostrcb) 1653{ 1654 int i, num_entries; 1655 struct ipr_hostrcb_type_14_error *error; 1656 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1657 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1658 1659 error = &hostrcb->hcam.u.error.u.type_14_error; 1660 1661 ipr_err_separator; 1662 1663 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1664 error->protection_level, 1665 ioa_cfg->host->host_no, 1666 error->last_func_vset_res_addr.bus, 1667 error->last_func_vset_res_addr.target, 1668 error->last_func_vset_res_addr.lun); 1669 1670 ipr_err_separator; 1671 1672 array_entry = error->array_member; 1673 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1674 ARRAY_SIZE(error->array_member)); 1675 1676 for (i = 0; i < num_entries; i++, array_entry++) { 1677 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1678 continue; 1679 1680 if (be32_to_cpu(error->exposed_mode_adn) == i) 1681 ipr_err("Exposed Array Member %d:\n", i); 1682 else 1683 ipr_err("Array Member %d:\n", i); 1684 1685 ipr_log_ext_vpd(&array_entry->vpd); 1686 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1687 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1688 "Expected Location"); 1689 1690 ipr_err_separator; 1691 } 1692} 1693 1694/** 1695 * ipr_log_array_error - Log an array configuration error. 1696 * @ioa_cfg: ioa config struct 1697 * @hostrcb: hostrcb struct 1698 * 1699 * Return value: 1700 * none 1701 **/ 1702static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1703 struct ipr_hostrcb *hostrcb) 1704{ 1705 int i; 1706 struct ipr_hostrcb_type_04_error *error; 1707 struct ipr_hostrcb_array_data_entry *array_entry; 1708 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1709 1710 error = &hostrcb->hcam.u.error.u.type_04_error; 1711 1712 ipr_err_separator; 1713 1714 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1715 error->protection_level, 1716 ioa_cfg->host->host_no, 1717 error->last_func_vset_res_addr.bus, 1718 error->last_func_vset_res_addr.target, 1719 error->last_func_vset_res_addr.lun); 1720 1721 ipr_err_separator; 1722 1723 array_entry = error->array_member; 1724 1725 for (i = 0; i < 18; i++) { 1726 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1727 continue; 1728 1729 if (be32_to_cpu(error->exposed_mode_adn) == i) 1730 ipr_err("Exposed Array Member %d:\n", i); 1731 else 1732 ipr_err("Array Member %d:\n", i); 1733 1734 ipr_log_vpd(&array_entry->vpd); 1735 1736 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1737 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1738 "Expected Location"); 1739 1740 ipr_err_separator; 1741 1742 if (i == 9) 1743 array_entry = error->array_member2; 1744 else 1745 array_entry++; 1746 } 1747} 1748 1749/** 1750 * ipr_log_hex_data - Log additional hex IOA error data. 1751 * @ioa_cfg: ioa config struct 1752 * @data: IOA error data 1753 * @len: data length 1754 * 1755 * Return value: 1756 * none 1757 **/ 1758static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1759{ 1760 int i; 1761 1762 if (len == 0) 1763 return; 1764 1765 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1766 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1767 1768 for (i = 0; i < len / 4; i += 4) { 1769 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1770 be32_to_cpu(data[i]), 1771 be32_to_cpu(data[i+1]), 1772 be32_to_cpu(data[i+2]), 1773 be32_to_cpu(data[i+3])); 1774 } 1775} 1776 1777/** 1778 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1779 * @ioa_cfg: ioa config struct 1780 * @hostrcb: hostrcb struct 1781 * 1782 * Return value: 1783 * none 1784 **/ 1785static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1786 struct ipr_hostrcb *hostrcb) 1787{ 1788 struct ipr_hostrcb_type_17_error *error; 1789 1790 if (ioa_cfg->sis64) 1791 error = &hostrcb->hcam.u.error64.u.type_17_error; 1792 else 1793 error = &hostrcb->hcam.u.error.u.type_17_error; 1794 1795 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1796 strim(error->failure_reason); 1797 1798 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1799 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1800 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1801 ipr_log_hex_data(ioa_cfg, error->data, 1802 be32_to_cpu(hostrcb->hcam.length) - 1803 (offsetof(struct ipr_hostrcb_error, u) + 1804 offsetof(struct ipr_hostrcb_type_17_error, data))); 1805} 1806 1807/** 1808 * ipr_log_dual_ioa_error - Log a dual adapter error. 1809 * @ioa_cfg: ioa config struct 1810 * @hostrcb: hostrcb struct 1811 * 1812 * Return value: 1813 * none 1814 **/ 1815static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1816 struct ipr_hostrcb *hostrcb) 1817{ 1818 struct ipr_hostrcb_type_07_error *error; 1819 1820 error = &hostrcb->hcam.u.error.u.type_07_error; 1821 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1822 strim(error->failure_reason); 1823 1824 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1825 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1826 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1827 ipr_log_hex_data(ioa_cfg, error->data, 1828 be32_to_cpu(hostrcb->hcam.length) - 1829 (offsetof(struct ipr_hostrcb_error, u) + 1830 offsetof(struct ipr_hostrcb_type_07_error, data))); 1831} 1832 1833static const struct { 1834 u8 active; 1835 char *desc; 1836} path_active_desc[] = { 1837 { IPR_PATH_NO_INFO, "Path" }, 1838 { IPR_PATH_ACTIVE, "Active path" }, 1839 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1840}; 1841 1842static const struct { 1843 u8 state; 1844 char *desc; 1845} path_state_desc[] = { 1846 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1847 { IPR_PATH_HEALTHY, "is healthy" }, 1848 { IPR_PATH_DEGRADED, "is degraded" }, 1849 { IPR_PATH_FAILED, "is failed" } 1850}; 1851 1852/** 1853 * ipr_log_fabric_path - Log a fabric path error 1854 * @hostrcb: hostrcb struct 1855 * @fabric: fabric descriptor 1856 * 1857 * Return value: 1858 * none 1859 **/ 1860static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1861 struct ipr_hostrcb_fabric_desc *fabric) 1862{ 1863 int i, j; 1864 u8 path_state = fabric->path_state; 1865 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1866 u8 state = path_state & IPR_PATH_STATE_MASK; 1867 1868 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1869 if (path_active_desc[i].active != active) 1870 continue; 1871 1872 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1873 if (path_state_desc[j].state != state) 1874 continue; 1875 1876 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1877 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1878 path_active_desc[i].desc, path_state_desc[j].desc, 1879 fabric->ioa_port); 1880 } else if (fabric->cascaded_expander == 0xff) { 1881 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1882 path_active_desc[i].desc, path_state_desc[j].desc, 1883 fabric->ioa_port, fabric->phy); 1884 } else if (fabric->phy == 0xff) { 1885 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1886 path_active_desc[i].desc, path_state_desc[j].desc, 1887 fabric->ioa_port, fabric->cascaded_expander); 1888 } else { 1889 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1890 path_active_desc[i].desc, path_state_desc[j].desc, 1891 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1892 } 1893 return; 1894 } 1895 } 1896 1897 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1898 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1899} 1900 1901/** 1902 * ipr_log64_fabric_path - Log a fabric path error 1903 * @hostrcb: hostrcb struct 1904 * @fabric: fabric descriptor 1905 * 1906 * Return value: 1907 * none 1908 **/ 1909static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, 1910 struct ipr_hostrcb64_fabric_desc *fabric) 1911{ 1912 int i, j; 1913 u8 path_state = fabric->path_state; 1914 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1915 u8 state = path_state & IPR_PATH_STATE_MASK; 1916 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1917 1918 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1919 if (path_active_desc[i].active != active) 1920 continue; 1921 1922 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1923 if (path_state_desc[j].state != state) 1924 continue; 1925 1926 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", 1927 path_active_desc[i].desc, path_state_desc[j].desc, 1928 ipr_format_res_path(fabric->res_path, buffer, 1929 sizeof(buffer))); 1930 return; 1931 } 1932 } 1933 1934 ipr_err("Path state=%02X Resource Path=%s\n", path_state, 1935 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer))); 1936} 1937 1938static const struct { 1939 u8 type; 1940 char *desc; 1941} path_type_desc[] = { 1942 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1943 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1944 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1945 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1946}; 1947 1948static const struct { 1949 u8 status; 1950 char *desc; 1951} path_status_desc[] = { 1952 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1953 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1954 { IPR_PATH_CFG_FAILED, "Failed" }, 1955 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1956 { IPR_PATH_NOT_DETECTED, "Missing" }, 1957 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1958}; 1959 1960static const char *link_rate[] = { 1961 "unknown", 1962 "disabled", 1963 "phy reset problem", 1964 "spinup hold", 1965 "port selector", 1966 "unknown", 1967 "unknown", 1968 "unknown", 1969 "1.5Gbps", 1970 "3.0Gbps", 1971 "unknown", 1972 "unknown", 1973 "unknown", 1974 "unknown", 1975 "unknown", 1976 "unknown" 1977}; 1978 1979/** 1980 * ipr_log_path_elem - Log a fabric path element. 1981 * @hostrcb: hostrcb struct 1982 * @cfg: fabric path element struct 1983 * 1984 * Return value: 1985 * none 1986 **/ 1987static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1988 struct ipr_hostrcb_config_element *cfg) 1989{ 1990 int i, j; 1991 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1992 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1993 1994 if (type == IPR_PATH_CFG_NOT_EXIST) 1995 return; 1996 1997 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 1998 if (path_type_desc[i].type != type) 1999 continue; 2000 2001 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2002 if (path_status_desc[j].status != status) 2003 continue; 2004 2005 if (type == IPR_PATH_CFG_IOA_PORT) { 2006 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 2007 path_status_desc[j].desc, path_type_desc[i].desc, 2008 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2009 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2010 } else { 2011 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 2012 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 2013 path_status_desc[j].desc, path_type_desc[i].desc, 2014 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2015 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2016 } else if (cfg->cascaded_expander == 0xff) { 2017 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 2018 "WWN=%08X%08X\n", path_status_desc[j].desc, 2019 path_type_desc[i].desc, cfg->phy, 2020 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2021 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2022 } else if (cfg->phy == 0xff) { 2023 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 2024 "WWN=%08X%08X\n", path_status_desc[j].desc, 2025 path_type_desc[i].desc, cfg->cascaded_expander, 2026 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2027 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2028 } else { 2029 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 2030 "WWN=%08X%08X\n", path_status_desc[j].desc, 2031 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 2032 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2033 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2034 } 2035 } 2036 return; 2037 } 2038 } 2039 2040 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 2041 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 2042 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2043 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2044} 2045 2046/** 2047 * ipr_log64_path_elem - Log a fabric path element. 2048 * @hostrcb: hostrcb struct 2049 * @cfg: fabric path element struct 2050 * 2051 * Return value: 2052 * none 2053 **/ 2054static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, 2055 struct ipr_hostrcb64_config_element *cfg) 2056{ 2057 int i, j; 2058 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; 2059 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2060 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2061 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2062 2063 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) 2064 return; 2065 2066 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2067 if (path_type_desc[i].type != type) 2068 continue; 2069 2070 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2071 if (path_status_desc[j].status != status) 2072 continue; 2073 2074 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", 2075 path_status_desc[j].desc, path_type_desc[i].desc, 2076 ipr_format_res_path(cfg->res_path, buffer, 2077 sizeof(buffer)), 2078 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2079 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2080 return; 2081 } 2082 } 2083 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " 2084 "WWN=%08X%08X\n", cfg->type_status, 2085 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)), 2086 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2087 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2088} 2089 2090/** 2091 * ipr_log_fabric_error - Log a fabric error. 2092 * @ioa_cfg: ioa config struct 2093 * @hostrcb: hostrcb struct 2094 * 2095 * Return value: 2096 * none 2097 **/ 2098static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2099 struct ipr_hostrcb *hostrcb) 2100{ 2101 struct ipr_hostrcb_type_20_error *error; 2102 struct ipr_hostrcb_fabric_desc *fabric; 2103 struct ipr_hostrcb_config_element *cfg; 2104 int i, add_len; 2105 2106 error = &hostrcb->hcam.u.error.u.type_20_error; 2107 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2108 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2109 2110 add_len = be32_to_cpu(hostrcb->hcam.length) - 2111 (offsetof(struct ipr_hostrcb_error, u) + 2112 offsetof(struct ipr_hostrcb_type_20_error, desc)); 2113 2114 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2115 ipr_log_fabric_path(hostrcb, fabric); 2116 for_each_fabric_cfg(fabric, cfg) 2117 ipr_log_path_elem(hostrcb, cfg); 2118 2119 add_len -= be16_to_cpu(fabric->length); 2120 fabric = (struct ipr_hostrcb_fabric_desc *) 2121 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2122 } 2123 2124 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2125} 2126 2127/** 2128 * ipr_log_sis64_array_error - Log a sis64 array error. 2129 * @ioa_cfg: ioa config struct 2130 * @hostrcb: hostrcb struct 2131 * 2132 * Return value: 2133 * none 2134 **/ 2135static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, 2136 struct ipr_hostrcb *hostrcb) 2137{ 2138 int i, num_entries; 2139 struct ipr_hostrcb_type_24_error *error; 2140 struct ipr_hostrcb64_array_data_entry *array_entry; 2141 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2142 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 2143 2144 error = &hostrcb->hcam.u.error64.u.type_24_error; 2145 2146 ipr_err_separator; 2147 2148 ipr_err("RAID %s Array Configuration: %s\n", 2149 error->protection_level, 2150 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer))); 2151 2152 ipr_err_separator; 2153 2154 array_entry = error->array_member; 2155 num_entries = min_t(u32, error->num_entries, 2156 ARRAY_SIZE(error->array_member)); 2157 2158 for (i = 0; i < num_entries; i++, array_entry++) { 2159 2160 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 2161 continue; 2162 2163 if (error->exposed_mode_adn == i) 2164 ipr_err("Exposed Array Member %d:\n", i); 2165 else 2166 ipr_err("Array Member %d:\n", i); 2167 2168 ipr_err("Array Member %d:\n", i); 2169 ipr_log_ext_vpd(&array_entry->vpd); 2170 ipr_err("Current Location: %s\n", 2171 ipr_format_res_path(array_entry->res_path, buffer, 2172 sizeof(buffer))); 2173 ipr_err("Expected Location: %s\n", 2174 ipr_format_res_path(array_entry->expected_res_path, 2175 buffer, sizeof(buffer))); 2176 2177 ipr_err_separator; 2178 } 2179} 2180 2181/** 2182 * ipr_log_sis64_fabric_error - Log a sis64 fabric error. 2183 * @ioa_cfg: ioa config struct 2184 * @hostrcb: hostrcb struct 2185 * 2186 * Return value: 2187 * none 2188 **/ 2189static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2190 struct ipr_hostrcb *hostrcb) 2191{ 2192 struct ipr_hostrcb_type_30_error *error; 2193 struct ipr_hostrcb64_fabric_desc *fabric; 2194 struct ipr_hostrcb64_config_element *cfg; 2195 int i, add_len; 2196 2197 error = &hostrcb->hcam.u.error64.u.type_30_error; 2198 2199 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2200 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2201 2202 add_len = be32_to_cpu(hostrcb->hcam.length) - 2203 (offsetof(struct ipr_hostrcb64_error, u) + 2204 offsetof(struct ipr_hostrcb_type_30_error, desc)); 2205 2206 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2207 ipr_log64_fabric_path(hostrcb, fabric); 2208 for_each_fabric_cfg(fabric, cfg) 2209 ipr_log64_path_elem(hostrcb, cfg); 2210 2211 add_len -= be16_to_cpu(fabric->length); 2212 fabric = (struct ipr_hostrcb64_fabric_desc *) 2213 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2214 } 2215 2216 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2217} 2218 2219/** 2220 * ipr_log_generic_error - Log an adapter error. 2221 * @ioa_cfg: ioa config struct 2222 * @hostrcb: hostrcb struct 2223 * 2224 * Return value: 2225 * none 2226 **/ 2227static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 2228 struct ipr_hostrcb *hostrcb) 2229{ 2230 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 2231 be32_to_cpu(hostrcb->hcam.length)); 2232} 2233 2234/** 2235 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 2236 * @ioasc: IOASC 2237 * 2238 * This function will return the index of into the ipr_error_table 2239 * for the specified IOASC. If the IOASC is not in the table, 2240 * 0 will be returned, which points to the entry used for unknown errors. 2241 * 2242 * Return value: 2243 * index into the ipr_error_table 2244 **/ 2245static u32 ipr_get_error(u32 ioasc) 2246{ 2247 int i; 2248 2249 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 2250 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 2251 return i; 2252 2253 return 0; 2254} 2255 2256/** 2257 * ipr_handle_log_data - Log an adapter error. 2258 * @ioa_cfg: ioa config struct 2259 * @hostrcb: hostrcb struct 2260 * 2261 * This function logs an adapter error to the system. 2262 * 2263 * Return value: 2264 * none 2265 **/ 2266static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 2267 struct ipr_hostrcb *hostrcb) 2268{ 2269 u32 ioasc; 2270 int error_index; 2271 2272 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 2273 return; 2274 2275 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 2276 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 2277 2278 if (ioa_cfg->sis64) 2279 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2280 else 2281 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2282 2283 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || 2284 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { 2285 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 2286 scsi_report_bus_reset(ioa_cfg->host, 2287 hostrcb->hcam.u.error.fd_res_addr.bus); 2288 } 2289 2290 error_index = ipr_get_error(ioasc); 2291 2292 if (!ipr_error_table[error_index].log_hcam) 2293 return; 2294 2295 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 2296 2297 /* Set indication we have logged an error */ 2298 ioa_cfg->errors_logged++; 2299 2300 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 2301 return; 2302 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 2303 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 2304 2305 switch (hostrcb->hcam.overlay_id) { 2306 case IPR_HOST_RCB_OVERLAY_ID_2: 2307 ipr_log_cache_error(ioa_cfg, hostrcb); 2308 break; 2309 case IPR_HOST_RCB_OVERLAY_ID_3: 2310 ipr_log_config_error(ioa_cfg, hostrcb); 2311 break; 2312 case IPR_HOST_RCB_OVERLAY_ID_4: 2313 case IPR_HOST_RCB_OVERLAY_ID_6: 2314 ipr_log_array_error(ioa_cfg, hostrcb); 2315 break; 2316 case IPR_HOST_RCB_OVERLAY_ID_7: 2317 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 2318 break; 2319 case IPR_HOST_RCB_OVERLAY_ID_12: 2320 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 2321 break; 2322 case IPR_HOST_RCB_OVERLAY_ID_13: 2323 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 2324 break; 2325 case IPR_HOST_RCB_OVERLAY_ID_14: 2326 case IPR_HOST_RCB_OVERLAY_ID_16: 2327 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 2328 break; 2329 case IPR_HOST_RCB_OVERLAY_ID_17: 2330 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 2331 break; 2332 case IPR_HOST_RCB_OVERLAY_ID_20: 2333 ipr_log_fabric_error(ioa_cfg, hostrcb); 2334 break; 2335 case IPR_HOST_RCB_OVERLAY_ID_23: 2336 ipr_log_sis64_config_error(ioa_cfg, hostrcb); 2337 break; 2338 case IPR_HOST_RCB_OVERLAY_ID_24: 2339 case IPR_HOST_RCB_OVERLAY_ID_26: 2340 ipr_log_sis64_array_error(ioa_cfg, hostrcb); 2341 break; 2342 case IPR_HOST_RCB_OVERLAY_ID_30: 2343 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); 2344 break; 2345 case IPR_HOST_RCB_OVERLAY_ID_1: 2346 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 2347 default: 2348 ipr_log_generic_error(ioa_cfg, hostrcb); 2349 break; 2350 } 2351} 2352 2353/** 2354 * ipr_process_error - Op done function for an adapter error log. 2355 * @ipr_cmd: ipr command struct 2356 * 2357 * This function is the op done function for an error log host 2358 * controlled async from the adapter. It will log the error and 2359 * send the HCAM back to the adapter. 2360 * 2361 * Return value: 2362 * none 2363 **/ 2364static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 2365{ 2366 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2367 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 2368 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 2369 u32 fd_ioasc; 2370 2371 if (ioa_cfg->sis64) 2372 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2373 else 2374 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2375 2376 list_del(&hostrcb->queue); 2377 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 2378 2379 if (!ioasc) { 2380 ipr_handle_log_data(ioa_cfg, hostrcb); 2381 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 2382 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 2383 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 2384 dev_err(&ioa_cfg->pdev->dev, 2385 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 2386 } 2387 2388 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 2389} 2390 2391/** 2392 * ipr_timeout - An internally generated op has timed out. 2393 * @ipr_cmd: ipr command struct 2394 * 2395 * This function blocks host requests and initiates an 2396 * adapter reset. 2397 * 2398 * Return value: 2399 * none 2400 **/ 2401static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 2402{ 2403 unsigned long lock_flags = 0; 2404 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2405 2406 ENTER; 2407 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2408 2409 ioa_cfg->errors_logged++; 2410 dev_err(&ioa_cfg->pdev->dev, 2411 "Adapter being reset due to command timeout.\n"); 2412 2413 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2414 ioa_cfg->sdt_state = GET_DUMP; 2415 2416 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 2417 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2418 2419 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2420 LEAVE; 2421} 2422 2423/** 2424 * ipr_oper_timeout - Adapter timed out transitioning to operational 2425 * @ipr_cmd: ipr command struct 2426 * 2427 * This function blocks host requests and initiates an 2428 * adapter reset. 2429 * 2430 * Return value: 2431 * none 2432 **/ 2433static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 2434{ 2435 unsigned long lock_flags = 0; 2436 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2437 2438 ENTER; 2439 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2440 2441 ioa_cfg->errors_logged++; 2442 dev_err(&ioa_cfg->pdev->dev, 2443 "Adapter timed out transitioning to operational.\n"); 2444 2445 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2446 ioa_cfg->sdt_state = GET_DUMP; 2447 2448 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 2449 if (ipr_fastfail) 2450 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 2451 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2452 } 2453 2454 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2455 LEAVE; 2456} 2457 2458/** 2459 * ipr_reset_reload - Reset/Reload the IOA 2460 * @ioa_cfg: ioa config struct 2461 * @shutdown_type: shutdown type 2462 * 2463 * This function resets the adapter and re-initializes it. 2464 * This function assumes that all new host commands have been stopped. 2465 * Return value: 2466 * SUCCESS / FAILED 2467 **/ 2468static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 2469 enum ipr_shutdown_type shutdown_type) 2470{ 2471 if (!ioa_cfg->in_reset_reload) 2472 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 2473 2474 spin_unlock_irq(ioa_cfg->host->host_lock); 2475 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2476 spin_lock_irq(ioa_cfg->host->host_lock); 2477 2478 /* If we got hit with a host reset while we were already resetting 2479 the adapter for some reason, and the reset failed. */ 2480 if (ioa_cfg->ioa_is_dead) { 2481 ipr_trace; 2482 return FAILED; 2483 } 2484 2485 return SUCCESS; 2486} 2487 2488/** 2489 * ipr_find_ses_entry - Find matching SES in SES table 2490 * @res: resource entry struct of SES 2491 * 2492 * Return value: 2493 * pointer to SES table entry / NULL on failure 2494 **/ 2495static const struct ipr_ses_table_entry * 2496ipr_find_ses_entry(struct ipr_resource_entry *res) 2497{ 2498 int i, j, matches; 2499 struct ipr_std_inq_vpids *vpids; 2500 const struct ipr_ses_table_entry *ste = ipr_ses_table; 2501 2502 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 2503 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 2504 if (ste->compare_product_id_byte[j] == 'X') { 2505 vpids = &res->std_inq_data.vpids; 2506 if (vpids->product_id[j] == ste->product_id[j]) 2507 matches++; 2508 else 2509 break; 2510 } else 2511 matches++; 2512 } 2513 2514 if (matches == IPR_PROD_ID_LEN) 2515 return ste; 2516 } 2517 2518 return NULL; 2519} 2520 2521/** 2522 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 2523 * @ioa_cfg: ioa config struct 2524 * @bus: SCSI bus 2525 * @bus_width: bus width 2526 * 2527 * Return value: 2528 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 2529 * For a 2-byte wide SCSI bus, the maximum transfer speed is 2530 * twice the maximum transfer rate (e.g. for a wide enabled bus, 2531 * max 160MHz = max 320MB/sec). 2532 **/ 2533static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 2534{ 2535 struct ipr_resource_entry *res; 2536 const struct ipr_ses_table_entry *ste; 2537 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 2538 2539 /* Loop through each config table entry in the config table buffer */ 2540 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2541 if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) 2542 continue; 2543 2544 if (bus != res->bus) 2545 continue; 2546 2547 if (!(ste = ipr_find_ses_entry(res))) 2548 continue; 2549 2550 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 2551 } 2552 2553 return max_xfer_rate; 2554} 2555 2556/** 2557 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 2558 * @ioa_cfg: ioa config struct 2559 * @max_delay: max delay in micro-seconds to wait 2560 * 2561 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 2562 * 2563 * Return value: 2564 * 0 on success / other on failure 2565 **/ 2566static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 2567{ 2568 volatile u32 pcii_reg; 2569 int delay = 1; 2570 2571 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 2572 while (delay < max_delay) { 2573 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 2574 2575 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 2576 return 0; 2577 2578 /* udelay cannot be used if delay is more than a few milliseconds */ 2579 if ((delay / 1000) > MAX_UDELAY_MS) 2580 mdelay(delay / 1000); 2581 else 2582 udelay(delay); 2583 2584 delay += delay; 2585 } 2586 return -EIO; 2587} 2588 2589/** 2590 * ipr_get_sis64_dump_data_section - Dump IOA memory 2591 * @ioa_cfg: ioa config struct 2592 * @start_addr: adapter address to dump 2593 * @dest: destination kernel buffer 2594 * @length_in_words: length to dump in 4 byte words 2595 * 2596 * Return value: 2597 * 0 on success 2598 **/ 2599static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2600 u32 start_addr, 2601 __be32 *dest, u32 length_in_words) 2602{ 2603 int i; 2604 2605 for (i = 0; i < length_in_words; i++) { 2606 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); 2607 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); 2608 dest++; 2609 } 2610 2611 return 0; 2612} 2613 2614/** 2615 * ipr_get_ldump_data_section - Dump IOA memory 2616 * @ioa_cfg: ioa config struct 2617 * @start_addr: adapter address to dump 2618 * @dest: destination kernel buffer 2619 * @length_in_words: length to dump in 4 byte words 2620 * 2621 * Return value: 2622 * 0 on success / -EIO on failure 2623 **/ 2624static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2625 u32 start_addr, 2626 __be32 *dest, u32 length_in_words) 2627{ 2628 volatile u32 temp_pcii_reg; 2629 int i, delay = 0; 2630 2631 if (ioa_cfg->sis64) 2632 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, 2633 dest, length_in_words); 2634 2635 /* Write IOA interrupt reg starting LDUMP state */ 2636 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 2637 ioa_cfg->regs.set_uproc_interrupt_reg32); 2638 2639 /* Wait for IO debug acknowledge */ 2640 if (ipr_wait_iodbg_ack(ioa_cfg, 2641 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 2642 dev_err(&ioa_cfg->pdev->dev, 2643 "IOA dump long data transfer timeout\n"); 2644 return -EIO; 2645 } 2646 2647 /* Signal LDUMP interlocked - clear IO debug ack */ 2648 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2649 ioa_cfg->regs.clr_interrupt_reg); 2650 2651 /* Write Mailbox with starting address */ 2652 writel(start_addr, ioa_cfg->ioa_mailbox); 2653 2654 /* Signal address valid - clear IOA Reset alert */ 2655 writel(IPR_UPROCI_RESET_ALERT, 2656 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2657 2658 for (i = 0; i < length_in_words; i++) { 2659 /* Wait for IO debug acknowledge */ 2660 if (ipr_wait_iodbg_ack(ioa_cfg, 2661 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2662 dev_err(&ioa_cfg->pdev->dev, 2663 "IOA dump short data transfer timeout\n"); 2664 return -EIO; 2665 } 2666 2667 /* Read data from mailbox and increment destination pointer */ 2668 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2669 dest++; 2670 2671 /* For all but the last word of data, signal data received */ 2672 if (i < (length_in_words - 1)) { 2673 /* Signal dump data received - Clear IO debug Ack */ 2674 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2675 ioa_cfg->regs.clr_interrupt_reg); 2676 } 2677 } 2678 2679 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2680 writel(IPR_UPROCI_RESET_ALERT, 2681 ioa_cfg->regs.set_uproc_interrupt_reg32); 2682 2683 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2684 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2685 2686 /* Signal dump data received - Clear IO debug Ack */ 2687 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2688 ioa_cfg->regs.clr_interrupt_reg); 2689 2690 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2691 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2692 temp_pcii_reg = 2693 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 2694 2695 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2696 return 0; 2697 2698 udelay(10); 2699 delay += 10; 2700 } 2701 2702 return 0; 2703} 2704 2705#ifdef CONFIG_SCSI_IPR_DUMP 2706/** 2707 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2708 * @ioa_cfg: ioa config struct 2709 * @pci_address: adapter address 2710 * @length: length of data to copy 2711 * 2712 * Copy data from PCI adapter to kernel buffer. 2713 * Note: length MUST be a 4 byte multiple 2714 * Return value: 2715 * 0 on success / other on failure 2716 **/ 2717static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2718 unsigned long pci_address, u32 length) 2719{ 2720 int bytes_copied = 0; 2721 int cur_len, rc, rem_len, rem_page_len, max_dump_size; 2722 __be32 *page; 2723 unsigned long lock_flags = 0; 2724 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2725 2726 if (ioa_cfg->sis64) 2727 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; 2728 else 2729 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; 2730 2731 while (bytes_copied < length && 2732 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) { 2733 if (ioa_dump->page_offset >= PAGE_SIZE || 2734 ioa_dump->page_offset == 0) { 2735 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2736 2737 if (!page) { 2738 ipr_trace; 2739 return bytes_copied; 2740 } 2741 2742 ioa_dump->page_offset = 0; 2743 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2744 ioa_dump->next_page_index++; 2745 } else 2746 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2747 2748 rem_len = length - bytes_copied; 2749 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2750 cur_len = min(rem_len, rem_page_len); 2751 2752 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2753 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2754 rc = -EIO; 2755 } else { 2756 rc = ipr_get_ldump_data_section(ioa_cfg, 2757 pci_address + bytes_copied, 2758 &page[ioa_dump->page_offset / 4], 2759 (cur_len / sizeof(u32))); 2760 } 2761 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2762 2763 if (!rc) { 2764 ioa_dump->page_offset += cur_len; 2765 bytes_copied += cur_len; 2766 } else { 2767 ipr_trace; 2768 break; 2769 } 2770 schedule(); 2771 } 2772 2773 return bytes_copied; 2774} 2775 2776/** 2777 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2778 * @hdr: dump entry header struct 2779 * 2780 * Return value: 2781 * nothing 2782 **/ 2783static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2784{ 2785 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2786 hdr->num_elems = 1; 2787 hdr->offset = sizeof(*hdr); 2788 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2789} 2790 2791/** 2792 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2793 * @ioa_cfg: ioa config struct 2794 * @driver_dump: driver dump struct 2795 * 2796 * Return value: 2797 * nothing 2798 **/ 2799static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2800 struct ipr_driver_dump *driver_dump) 2801{ 2802 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2803 2804 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2805 driver_dump->ioa_type_entry.hdr.len = 2806 sizeof(struct ipr_dump_ioa_type_entry) - 2807 sizeof(struct ipr_dump_entry_header); 2808 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2809 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2810 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2811 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2812 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2813 ucode_vpd->minor_release[1]; 2814 driver_dump->hdr.num_entries++; 2815} 2816 2817/** 2818 * ipr_dump_version_data - Fill in the driver version in the dump. 2819 * @ioa_cfg: ioa config struct 2820 * @driver_dump: driver dump struct 2821 * 2822 * Return value: 2823 * nothing 2824 **/ 2825static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2826 struct ipr_driver_dump *driver_dump) 2827{ 2828 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2829 driver_dump->version_entry.hdr.len = 2830 sizeof(struct ipr_dump_version_entry) - 2831 sizeof(struct ipr_dump_entry_header); 2832 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2833 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2834 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2835 driver_dump->hdr.num_entries++; 2836} 2837 2838/** 2839 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2840 * @ioa_cfg: ioa config struct 2841 * @driver_dump: driver dump struct 2842 * 2843 * Return value: 2844 * nothing 2845 **/ 2846static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2847 struct ipr_driver_dump *driver_dump) 2848{ 2849 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2850 driver_dump->trace_entry.hdr.len = 2851 sizeof(struct ipr_dump_trace_entry) - 2852 sizeof(struct ipr_dump_entry_header); 2853 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2854 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2855 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2856 driver_dump->hdr.num_entries++; 2857} 2858 2859/** 2860 * ipr_dump_location_data - Fill in the IOA location in the dump. 2861 * @ioa_cfg: ioa config struct 2862 * @driver_dump: driver dump struct 2863 * 2864 * Return value: 2865 * nothing 2866 **/ 2867static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2868 struct ipr_driver_dump *driver_dump) 2869{ 2870 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2871 driver_dump->location_entry.hdr.len = 2872 sizeof(struct ipr_dump_location_entry) - 2873 sizeof(struct ipr_dump_entry_header); 2874 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2875 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2876 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2877 driver_dump->hdr.num_entries++; 2878} 2879 2880/** 2881 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2882 * @ioa_cfg: ioa config struct 2883 * @dump: dump struct 2884 * 2885 * Return value: 2886 * nothing 2887 **/ 2888static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2889{ 2890 unsigned long start_addr, sdt_word; 2891 unsigned long lock_flags = 0; 2892 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2893 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2894 u32 num_entries, max_num_entries, start_off, end_off; 2895 u32 max_dump_size, bytes_to_copy, bytes_copied, rc; 2896 struct ipr_sdt *sdt; 2897 int valid = 1; 2898 int i; 2899 2900 ENTER; 2901 2902 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2903 2904 if (ioa_cfg->sdt_state != READ_DUMP) { 2905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2906 return; 2907 } 2908 2909 if (ioa_cfg->sis64) { 2910 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2911 ssleep(IPR_DUMP_DELAY_SECONDS); 2912 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2913 } 2914 2915 start_addr = readl(ioa_cfg->ioa_mailbox); 2916 2917 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { 2918 dev_err(&ioa_cfg->pdev->dev, 2919 "Invalid dump table format: %lx\n", start_addr); 2920 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2921 return; 2922 } 2923 2924 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2925 2926 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2927 2928 /* Initialize the overall dump header */ 2929 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2930 driver_dump->hdr.num_entries = 1; 2931 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2932 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2933 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2934 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2935 2936 ipr_dump_version_data(ioa_cfg, driver_dump); 2937 ipr_dump_location_data(ioa_cfg, driver_dump); 2938 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2939 ipr_dump_trace_data(ioa_cfg, driver_dump); 2940 2941 /* Update dump_header */ 2942 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2943 2944 /* IOA Dump entry */ 2945 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2946 ioa_dump->hdr.len = 0; 2947 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2948 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2949 2950 /* First entries in sdt are actually a list of dump addresses and 2951 lengths to gather the real dump data. sdt represents the pointer 2952 to the ioa generated dump table. Dump data will be extracted based 2953 on entries in this table */ 2954 sdt = &ioa_dump->sdt; 2955 2956 if (ioa_cfg->sis64) { 2957 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES; 2958 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; 2959 } else { 2960 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES; 2961 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; 2962 } 2963 2964 bytes_to_copy = offsetof(struct ipr_sdt, entry) + 2965 (max_num_entries * sizeof(struct ipr_sdt_entry)); 2966 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2967 bytes_to_copy / sizeof(__be32)); 2968 2969 /* Smart Dump table is ready to use and the first entry is valid */ 2970 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 2971 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 2972 dev_err(&ioa_cfg->pdev->dev, 2973 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2974 rc, be32_to_cpu(sdt->hdr.state)); 2975 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2976 ioa_cfg->sdt_state = DUMP_OBTAINED; 2977 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2978 return; 2979 } 2980 2981 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2982 2983 if (num_entries > max_num_entries) 2984 num_entries = max_num_entries; 2985 2986 /* Update dump length to the actual data to be copied */ 2987 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header); 2988 if (ioa_cfg->sis64) 2989 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry); 2990 else 2991 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry); 2992 2993 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2994 2995 for (i = 0; i < num_entries; i++) { 2996 if (ioa_dump->hdr.len > max_dump_size) { 2997 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 2998 break; 2999 } 3000 3001 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 3002 sdt_word = be32_to_cpu(sdt->entry[i].start_token); 3003 if (ioa_cfg->sis64) 3004 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); 3005 else { 3006 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 3007 end_off = be32_to_cpu(sdt->entry[i].end_token); 3008 3009 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) 3010 bytes_to_copy = end_off - start_off; 3011 else 3012 valid = 0; 3013 } 3014 if (valid) { 3015 if (bytes_to_copy > max_dump_size) { 3016 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 3017 continue; 3018 } 3019 3020 /* Copy data from adapter to driver buffers */ 3021 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 3022 bytes_to_copy); 3023 3024 ioa_dump->hdr.len += bytes_copied; 3025 3026 if (bytes_copied != bytes_to_copy) { 3027 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 3028 break; 3029 } 3030 } 3031 } 3032 } 3033 3034 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 3035 3036 /* Update dump_header */ 3037 driver_dump->hdr.len += ioa_dump->hdr.len; 3038 wmb(); 3039 ioa_cfg->sdt_state = DUMP_OBTAINED; 3040 LEAVE; 3041} 3042 3043#else 3044#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 3045#endif 3046 3047/** 3048 * ipr_release_dump - Free adapter dump memory 3049 * @kref: kref struct 3050 * 3051 * Return value: 3052 * nothing 3053 **/ 3054static void ipr_release_dump(struct kref *kref) 3055{ 3056 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 3057 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 3058 unsigned long lock_flags = 0; 3059 int i; 3060 3061 ENTER; 3062 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3063 ioa_cfg->dump = NULL; 3064 ioa_cfg->sdt_state = INACTIVE; 3065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3066 3067 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 3068 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 3069 3070 vfree(dump->ioa_dump.ioa_data); 3071 kfree(dump); 3072 LEAVE; 3073} 3074 3075/** 3076 * ipr_worker_thread - Worker thread 3077 * @work: ioa config struct 3078 * 3079 * Called at task level from a work thread. This function takes care 3080 * of adding and removing device from the mid-layer as configuration 3081 * changes are detected by the adapter. 3082 * 3083 * Return value: 3084 * nothing 3085 **/ 3086static void ipr_worker_thread(struct work_struct *work) 3087{ 3088 unsigned long lock_flags; 3089 struct ipr_resource_entry *res; 3090 struct scsi_device *sdev; 3091 struct ipr_dump *dump; 3092 struct ipr_ioa_cfg *ioa_cfg = 3093 container_of(work, struct ipr_ioa_cfg, work_q); 3094 u8 bus, target, lun; 3095 int did_work; 3096 3097 ENTER; 3098 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3099 3100 if (ioa_cfg->sdt_state == READ_DUMP) { 3101 dump = ioa_cfg->dump; 3102 if (!dump) { 3103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3104 return; 3105 } 3106 kref_get(&dump->kref); 3107 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3108 ipr_get_ioa_dump(ioa_cfg, dump); 3109 kref_put(&dump->kref, ipr_release_dump); 3110 3111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3112 if (ioa_cfg->sdt_state == DUMP_OBTAINED) 3113 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3115 return; 3116 } 3117 3118restart: 3119 do { 3120 did_work = 0; 3121 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 3122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3123 return; 3124 } 3125 3126 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3127 if (res->del_from_ml && res->sdev) { 3128 did_work = 1; 3129 sdev = res->sdev; 3130 if (!scsi_device_get(sdev)) { 3131 if (!res->add_to_ml) 3132 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3133 else 3134 res->del_from_ml = 0; 3135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3136 scsi_remove_device(sdev); 3137 scsi_device_put(sdev); 3138 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3139 } 3140 break; 3141 } 3142 } 3143 } while(did_work); 3144 3145 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3146 if (res->add_to_ml) { 3147 bus = res->bus; 3148 target = res->target; 3149 lun = res->lun; 3150 res->add_to_ml = 0; 3151 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3152 scsi_add_device(ioa_cfg->host, bus, target, lun); 3153 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3154 goto restart; 3155 } 3156 } 3157 3158 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3159 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3160 LEAVE; 3161} 3162 3163#ifdef CONFIG_SCSI_IPR_TRACE 3164/** 3165 * ipr_read_trace - Dump the adapter trace 3166 * @filp: open sysfs file 3167 * @kobj: kobject struct 3168 * @bin_attr: bin_attribute struct 3169 * @buf: buffer 3170 * @off: offset 3171 * @count: buffer size 3172 * 3173 * Return value: 3174 * number of bytes printed to buffer 3175 **/ 3176static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, 3177 struct bin_attribute *bin_attr, 3178 char *buf, loff_t off, size_t count) 3179{ 3180 struct device *dev = container_of(kobj, struct device, kobj); 3181 struct Scsi_Host *shost = class_to_shost(dev); 3182 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3183 unsigned long lock_flags = 0; 3184 ssize_t ret; 3185 3186 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3187 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3188 IPR_TRACE_SIZE); 3189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3190 3191 return ret; 3192} 3193 3194static struct bin_attribute ipr_trace_attr = { 3195 .attr = { 3196 .name = "trace", 3197 .mode = S_IRUGO, 3198 }, 3199 .size = 0, 3200 .read = ipr_read_trace, 3201}; 3202#endif 3203 3204/** 3205 * ipr_show_fw_version - Show the firmware version 3206 * @dev: class device struct 3207 * @buf: buffer 3208 * 3209 * Return value: 3210 * number of bytes printed to buffer 3211 **/ 3212static ssize_t ipr_show_fw_version(struct device *dev, 3213 struct device_attribute *attr, char *buf) 3214{ 3215 struct Scsi_Host *shost = class_to_shost(dev); 3216 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3217 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3218 unsigned long lock_flags = 0; 3219 int len; 3220 3221 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3222 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3223 ucode_vpd->major_release, ucode_vpd->card_type, 3224 ucode_vpd->minor_release[0], 3225 ucode_vpd->minor_release[1]); 3226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3227 return len; 3228} 3229 3230static struct device_attribute ipr_fw_version_attr = { 3231 .attr = { 3232 .name = "fw_version", 3233 .mode = S_IRUGO, 3234 }, 3235 .show = ipr_show_fw_version, 3236}; 3237 3238/** 3239 * ipr_show_log_level - Show the adapter's error logging level 3240 * @dev: class device struct 3241 * @buf: buffer 3242 * 3243 * Return value: 3244 * number of bytes printed to buffer 3245 **/ 3246static ssize_t ipr_show_log_level(struct device *dev, 3247 struct device_attribute *attr, char *buf) 3248{ 3249 struct Scsi_Host *shost = class_to_shost(dev); 3250 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3251 unsigned long lock_flags = 0; 3252 int len; 3253 3254 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3255 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3256 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3257 return len; 3258} 3259 3260/** 3261 * ipr_store_log_level - Change the adapter's error logging level 3262 * @dev: class device struct 3263 * @buf: buffer 3264 * 3265 * Return value: 3266 * number of bytes printed to buffer 3267 **/ 3268static ssize_t ipr_store_log_level(struct device *dev, 3269 struct device_attribute *attr, 3270 const char *buf, size_t count) 3271{ 3272 struct Scsi_Host *shost = class_to_shost(dev); 3273 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3274 unsigned long lock_flags = 0; 3275 3276 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3277 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3278 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3279 return strlen(buf); 3280} 3281 3282static struct device_attribute ipr_log_level_attr = { 3283 .attr = { 3284 .name = "log_level", 3285 .mode = S_IRUGO | S_IWUSR, 3286 }, 3287 .show = ipr_show_log_level, 3288 .store = ipr_store_log_level 3289}; 3290 3291/** 3292 * ipr_store_diagnostics - IOA Diagnostics interface 3293 * @dev: device struct 3294 * @buf: buffer 3295 * @count: buffer size 3296 * 3297 * This function will reset the adapter and wait a reasonable 3298 * amount of time for any errors that the adapter might log. 3299 * 3300 * Return value: 3301 * count on success / other on failure 3302 **/ 3303static ssize_t ipr_store_diagnostics(struct device *dev, 3304 struct device_attribute *attr, 3305 const char *buf, size_t count) 3306{ 3307 struct Scsi_Host *shost = class_to_shost(dev); 3308 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3309 unsigned long lock_flags = 0; 3310 int rc = count; 3311 3312 if (!capable(CAP_SYS_ADMIN)) 3313 return -EACCES; 3314 3315 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3316 while(ioa_cfg->in_reset_reload) { 3317 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3318 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3319 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3320 } 3321 3322 ioa_cfg->errors_logged = 0; 3323 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3324 3325 if (ioa_cfg->in_reset_reload) { 3326 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3327 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3328 3329 /* Wait for a second for any errors to be logged */ 3330 msleep(1000); 3331 } else { 3332 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3333 return -EIO; 3334 } 3335 3336 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3337 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3338 rc = -EIO; 3339 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3340 3341 return rc; 3342} 3343 3344static struct device_attribute ipr_diagnostics_attr = { 3345 .attr = { 3346 .name = "run_diagnostics", 3347 .mode = S_IWUSR, 3348 }, 3349 .store = ipr_store_diagnostics 3350}; 3351 3352/** 3353 * ipr_show_adapter_state - Show the adapter's state 3354 * @class_dev: device struct 3355 * @buf: buffer 3356 * 3357 * Return value: 3358 * number of bytes printed to buffer 3359 **/ 3360static ssize_t ipr_show_adapter_state(struct device *dev, 3361 struct device_attribute *attr, char *buf) 3362{ 3363 struct Scsi_Host *shost = class_to_shost(dev); 3364 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3365 unsigned long lock_flags = 0; 3366 int len; 3367 3368 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3369 if (ioa_cfg->ioa_is_dead) 3370 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3371 else 3372 len = snprintf(buf, PAGE_SIZE, "online\n"); 3373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3374 return len; 3375} 3376 3377/** 3378 * ipr_store_adapter_state - Change adapter state 3379 * @dev: device struct 3380 * @buf: buffer 3381 * @count: buffer size 3382 * 3383 * This function will change the adapter's state. 3384 * 3385 * Return value: 3386 * count on success / other on failure 3387 **/ 3388static ssize_t ipr_store_adapter_state(struct device *dev, 3389 struct device_attribute *attr, 3390 const char *buf, size_t count) 3391{ 3392 struct Scsi_Host *shost = class_to_shost(dev); 3393 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3394 unsigned long lock_flags; 3395 int result = count; 3396 3397 if (!capable(CAP_SYS_ADMIN)) 3398 return -EACCES; 3399 3400 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3401 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 3402 ioa_cfg->ioa_is_dead = 0; 3403 ioa_cfg->reset_retries = 0; 3404 ioa_cfg->in_ioa_bringdown = 0; 3405 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3406 } 3407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3408 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3409 3410 return result; 3411} 3412 3413static struct device_attribute ipr_ioa_state_attr = { 3414 .attr = { 3415 .name = "online_state", 3416 .mode = S_IRUGO | S_IWUSR, 3417 }, 3418 .show = ipr_show_adapter_state, 3419 .store = ipr_store_adapter_state 3420}; 3421 3422/** 3423 * ipr_store_reset_adapter - Reset the adapter 3424 * @dev: device struct 3425 * @buf: buffer 3426 * @count: buffer size 3427 * 3428 * This function will reset the adapter. 3429 * 3430 * Return value: 3431 * count on success / other on failure 3432 **/ 3433static ssize_t ipr_store_reset_adapter(struct device *dev, 3434 struct device_attribute *attr, 3435 const char *buf, size_t count) 3436{ 3437 struct Scsi_Host *shost = class_to_shost(dev); 3438 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3439 unsigned long lock_flags; 3440 int result = count; 3441 3442 if (!capable(CAP_SYS_ADMIN)) 3443 return -EACCES; 3444 3445 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3446 if (!ioa_cfg->in_reset_reload) 3447 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3448 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3449 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3450 3451 return result; 3452} 3453 3454static struct device_attribute ipr_ioa_reset_attr = { 3455 .attr = { 3456 .name = "reset_host", 3457 .mode = S_IWUSR, 3458 }, 3459 .store = ipr_store_reset_adapter 3460}; 3461 3462/** 3463 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3464 * @buf_len: buffer length 3465 * 3466 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3467 * list to use for microcode download 3468 * 3469 * Return value: 3470 * pointer to sglist / NULL on failure 3471 **/ 3472static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3473{ 3474 int sg_size, order, bsize_elem, num_elem, i, j; 3475 struct ipr_sglist *sglist; 3476 struct scatterlist *scatterlist; 3477 struct page *page; 3478 3479 /* Get the minimum size per scatter/gather element */ 3480 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3481 3482 /* Get the actual size per element */ 3483 order = get_order(sg_size); 3484 3485 /* Determine the actual number of bytes per element */ 3486 bsize_elem = PAGE_SIZE * (1 << order); 3487 3488 /* Determine the actual number of sg entries needed */ 3489 if (buf_len % bsize_elem) 3490 num_elem = (buf_len / bsize_elem) + 1; 3491 else 3492 num_elem = buf_len / bsize_elem; 3493 3494 /* Allocate a scatter/gather list for the DMA */ 3495 sglist = kzalloc(sizeof(struct ipr_sglist) + 3496 (sizeof(struct scatterlist) * (num_elem - 1)), 3497 GFP_KERNEL); 3498 3499 if (sglist == NULL) { 3500 ipr_trace; 3501 return NULL; 3502 } 3503 3504 scatterlist = sglist->scatterlist; 3505 sg_init_table(scatterlist, num_elem); 3506 3507 sglist->order = order; 3508 sglist->num_sg = num_elem; 3509 3510 /* Allocate a bunch of sg elements */ 3511 for (i = 0; i < num_elem; i++) { 3512 page = alloc_pages(GFP_KERNEL, order); 3513 if (!page) { 3514 ipr_trace; 3515 3516 /* Free up what we already allocated */ 3517 for (j = i - 1; j >= 0; j--) 3518 __free_pages(sg_page(&scatterlist[j]), order); 3519 kfree(sglist); 3520 return NULL; 3521 } 3522 3523 sg_set_page(&scatterlist[i], page, 0, 0); 3524 } 3525 3526 return sglist; 3527} 3528 3529/** 3530 * ipr_free_ucode_buffer - Frees a microcode download buffer 3531 * @p_dnld: scatter/gather list pointer 3532 * 3533 * Free a DMA'able ucode download buffer previously allocated with 3534 * ipr_alloc_ucode_buffer 3535 * 3536 * Return value: 3537 * nothing 3538 **/ 3539static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3540{ 3541 int i; 3542 3543 for (i = 0; i < sglist->num_sg; i++) 3544 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 3545 3546 kfree(sglist); 3547} 3548 3549/** 3550 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3551 * @sglist: scatter/gather list pointer 3552 * @buffer: buffer pointer 3553 * @len: buffer length 3554 * 3555 * Copy a microcode image from a user buffer into a buffer allocated by 3556 * ipr_alloc_ucode_buffer 3557 * 3558 * Return value: 3559 * 0 on success / other on failure 3560 **/ 3561static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3562 u8 *buffer, u32 len) 3563{ 3564 int bsize_elem, i, result = 0; 3565 struct scatterlist *scatterlist; 3566 void *kaddr; 3567 3568 /* Determine the actual number of bytes per element */ 3569 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3570 3571 scatterlist = sglist->scatterlist; 3572 3573 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 3574 struct page *page = sg_page(&scatterlist[i]); 3575 3576 kaddr = kmap(page); 3577 memcpy(kaddr, buffer, bsize_elem); 3578 kunmap(page); 3579 3580 scatterlist[i].length = bsize_elem; 3581 3582 if (result != 0) { 3583 ipr_trace; 3584 return result; 3585 } 3586 } 3587 3588 if (len % bsize_elem) { 3589 struct page *page = sg_page(&scatterlist[i]); 3590 3591 kaddr = kmap(page); 3592 memcpy(kaddr, buffer, len % bsize_elem); 3593 kunmap(page); 3594 3595 scatterlist[i].length = len % bsize_elem; 3596 } 3597 3598 sglist->buffer_len = len; 3599 return result; 3600} 3601 3602/** 3603 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3604 * @ipr_cmd: ipr command struct 3605 * @sglist: scatter/gather list 3606 * 3607 * Builds a microcode download IOA data list (IOADL). 3608 * 3609 **/ 3610static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3611 struct ipr_sglist *sglist) 3612{ 3613 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3614 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3615 struct scatterlist *scatterlist = sglist->scatterlist; 3616 int i; 3617 3618 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3619 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3620 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3621 3622 ioarcb->ioadl_len = 3623 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3624 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3625 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3626 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); 3627 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); 3628 } 3629 3630 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3631} 3632 3633/** 3634 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3635 * @ipr_cmd: ipr command struct 3636 * @sglist: scatter/gather list 3637 * 3638 * Builds a microcode download IOA data list (IOADL). 3639 * 3640 **/ 3641static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3642 struct ipr_sglist *sglist) 3643{ 3644 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3645 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3646 struct scatterlist *scatterlist = sglist->scatterlist; 3647 int i; 3648 3649 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3650 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3651 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3652 3653 ioarcb->ioadl_len = 3654 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3655 3656 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3657 ioadl[i].flags_and_data_len = 3658 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3659 ioadl[i].address = 3660 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3661 } 3662 3663 ioadl[i-1].flags_and_data_len |= 3664 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3665} 3666 3667/** 3668 * ipr_update_ioa_ucode - Update IOA's microcode 3669 * @ioa_cfg: ioa config struct 3670 * @sglist: scatter/gather list 3671 * 3672 * Initiate an adapter reset to update the IOA's microcode 3673 * 3674 * Return value: 3675 * 0 on success / -EIO on failure 3676 **/ 3677static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3678 struct ipr_sglist *sglist) 3679{ 3680 unsigned long lock_flags; 3681 3682 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3683 while(ioa_cfg->in_reset_reload) { 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 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3687 } 3688 3689 if (ioa_cfg->ucode_sglist) { 3690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3691 dev_err(&ioa_cfg->pdev->dev, 3692 "Microcode download already in progress\n"); 3693 return -EIO; 3694 } 3695 3696 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3697 sglist->num_sg, DMA_TO_DEVICE); 3698 3699 if (!sglist->num_dma_sg) { 3700 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3701 dev_err(&ioa_cfg->pdev->dev, 3702 "Failed to map microcode download buffer!\n"); 3703 return -EIO; 3704 } 3705 3706 ioa_cfg->ucode_sglist = sglist; 3707 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3708 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3709 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3710 3711 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3712 ioa_cfg->ucode_sglist = NULL; 3713 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3714 return 0; 3715} 3716 3717/** 3718 * ipr_store_update_fw - Update the firmware on the adapter 3719 * @class_dev: device struct 3720 * @buf: buffer 3721 * @count: buffer size 3722 * 3723 * This function will update the firmware on the adapter. 3724 * 3725 * Return value: 3726 * count on success / other on failure 3727 **/ 3728static ssize_t ipr_store_update_fw(struct device *dev, 3729 struct device_attribute *attr, 3730 const char *buf, size_t count) 3731{ 3732 struct Scsi_Host *shost = class_to_shost(dev); 3733 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3734 struct ipr_ucode_image_header *image_hdr; 3735 const struct firmware *fw_entry; 3736 struct ipr_sglist *sglist; 3737 char fname[100]; 3738 char *src; 3739 int len, result, dnld_size; 3740 3741 if (!capable(CAP_SYS_ADMIN)) 3742 return -EACCES; 3743 3744 len = snprintf(fname, 99, "%s", buf); 3745 fname[len-1] = '\0'; 3746 3747 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3748 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3749 return -EIO; 3750 } 3751 3752 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3753 3754 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3755 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3756 sglist = ipr_alloc_ucode_buffer(dnld_size); 3757 3758 if (!sglist) { 3759 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3760 release_firmware(fw_entry); 3761 return -ENOMEM; 3762 } 3763 3764 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3765 3766 if (result) { 3767 dev_err(&ioa_cfg->pdev->dev, 3768 "Microcode buffer copy to DMA buffer failed\n"); 3769 goto out; 3770 } 3771 3772 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n"); 3773 3774 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3775 3776 if (!result) 3777 result = count; 3778out: 3779 ipr_free_ucode_buffer(sglist); 3780 release_firmware(fw_entry); 3781 return result; 3782} 3783 3784static struct device_attribute ipr_update_fw_attr = { 3785 .attr = { 3786 .name = "update_fw", 3787 .mode = S_IWUSR, 3788 }, 3789 .store = ipr_store_update_fw 3790}; 3791 3792/** 3793 * ipr_show_fw_type - Show the adapter's firmware type. 3794 * @dev: class device struct 3795 * @buf: buffer 3796 * 3797 * Return value: 3798 * number of bytes printed to buffer 3799 **/ 3800static ssize_t ipr_show_fw_type(struct device *dev, 3801 struct device_attribute *attr, char *buf) 3802{ 3803 struct Scsi_Host *shost = class_to_shost(dev); 3804 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3805 unsigned long lock_flags = 0; 3806 int len; 3807 3808 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3809 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64); 3810 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3811 return len; 3812} 3813 3814static struct device_attribute ipr_ioa_fw_type_attr = { 3815 .attr = { 3816 .name = "fw_type", 3817 .mode = S_IRUGO, 3818 }, 3819 .show = ipr_show_fw_type 3820}; 3821 3822static struct device_attribute *ipr_ioa_attrs[] = { 3823 &ipr_fw_version_attr, 3824 &ipr_log_level_attr, 3825 &ipr_diagnostics_attr, 3826 &ipr_ioa_state_attr, 3827 &ipr_ioa_reset_attr, 3828 &ipr_update_fw_attr, 3829 &ipr_ioa_fw_type_attr, 3830 NULL, 3831}; 3832 3833#ifdef CONFIG_SCSI_IPR_DUMP 3834/** 3835 * ipr_read_dump - Dump the adapter 3836 * @filp: open sysfs file 3837 * @kobj: kobject struct 3838 * @bin_attr: bin_attribute struct 3839 * @buf: buffer 3840 * @off: offset 3841 * @count: buffer size 3842 * 3843 * Return value: 3844 * number of bytes printed to buffer 3845 **/ 3846static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, 3847 struct bin_attribute *bin_attr, 3848 char *buf, loff_t off, size_t count) 3849{ 3850 struct device *cdev = container_of(kobj, struct device, kobj); 3851 struct Scsi_Host *shost = class_to_shost(cdev); 3852 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3853 struct ipr_dump *dump; 3854 unsigned long lock_flags = 0; 3855 char *src; 3856 int len, sdt_end; 3857 size_t rc = count; 3858 3859 if (!capable(CAP_SYS_ADMIN)) 3860 return -EACCES; 3861 3862 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3863 dump = ioa_cfg->dump; 3864 3865 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3866 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3867 return 0; 3868 } 3869 kref_get(&dump->kref); 3870 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3871 3872 if (off > dump->driver_dump.hdr.len) { 3873 kref_put(&dump->kref, ipr_release_dump); 3874 return 0; 3875 } 3876 3877 if (off + count > dump->driver_dump.hdr.len) { 3878 count = dump->driver_dump.hdr.len - off; 3879 rc = count; 3880 } 3881 3882 if (count && off < sizeof(dump->driver_dump)) { 3883 if (off + count > sizeof(dump->driver_dump)) 3884 len = sizeof(dump->driver_dump) - off; 3885 else 3886 len = count; 3887 src = (u8 *)&dump->driver_dump + off; 3888 memcpy(buf, src, len); 3889 buf += len; 3890 off += len; 3891 count -= len; 3892 } 3893 3894 off -= sizeof(dump->driver_dump); 3895 3896 if (ioa_cfg->sis64) 3897 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + 3898 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) * 3899 sizeof(struct ipr_sdt_entry)); 3900 else 3901 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + 3902 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry)); 3903 3904 if (count && off < sdt_end) { 3905 if (off + count > sdt_end) 3906 len = sdt_end - off; 3907 else 3908 len = count; 3909 src = (u8 *)&dump->ioa_dump + off; 3910 memcpy(buf, src, len); 3911 buf += len; 3912 off += len; 3913 count -= len; 3914 } 3915 3916 off -= sdt_end; 3917 3918 while (count) { 3919 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3920 len = PAGE_ALIGN(off) - off; 3921 else 3922 len = count; 3923 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3924 src += off & ~PAGE_MASK; 3925 memcpy(buf, src, len); 3926 buf += len; 3927 off += len; 3928 count -= len; 3929 } 3930 3931 kref_put(&dump->kref, ipr_release_dump); 3932 return rc; 3933} 3934 3935/** 3936 * ipr_alloc_dump - Prepare for adapter dump 3937 * @ioa_cfg: ioa config struct 3938 * 3939 * Return value: 3940 * 0 on success / other on failure 3941 **/ 3942static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3943{ 3944 struct ipr_dump *dump; 3945 __be32 **ioa_data; 3946 unsigned long lock_flags = 0; 3947 3948 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3949 3950 if (!dump) { 3951 ipr_err("Dump memory allocation failed\n"); 3952 return -ENOMEM; 3953 } 3954 3955 if (ioa_cfg->sis64) 3956 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *)); 3957 else 3958 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *)); 3959 3960 if (!ioa_data) { 3961 ipr_err("Dump memory allocation failed\n"); 3962 kfree(dump); 3963 return -ENOMEM; 3964 } 3965 3966 dump->ioa_dump.ioa_data = ioa_data; 3967 3968 kref_init(&dump->kref); 3969 dump->ioa_cfg = ioa_cfg; 3970 3971 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3972 3973 if (INACTIVE != ioa_cfg->sdt_state) { 3974 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3975 vfree(dump->ioa_dump.ioa_data); 3976 kfree(dump); 3977 return 0; 3978 } 3979 3980 ioa_cfg->dump = dump; 3981 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3982 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3983 ioa_cfg->dump_taken = 1; 3984 schedule_work(&ioa_cfg->work_q); 3985 } 3986 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3987 3988 return 0; 3989} 3990 3991/** 3992 * ipr_free_dump - Free adapter dump memory 3993 * @ioa_cfg: ioa config struct 3994 * 3995 * Return value: 3996 * 0 on success / other on failure 3997 **/ 3998static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 3999{ 4000 struct ipr_dump *dump; 4001 unsigned long lock_flags = 0; 4002 4003 ENTER; 4004 4005 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4006 dump = ioa_cfg->dump; 4007 if (!dump) { 4008 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4009 return 0; 4010 } 4011 4012 ioa_cfg->dump = NULL; 4013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4014 4015 kref_put(&dump->kref, ipr_release_dump); 4016 4017 LEAVE; 4018 return 0; 4019} 4020 4021/** 4022 * ipr_write_dump - Setup dump state of adapter 4023 * @filp: open sysfs file 4024 * @kobj: kobject struct 4025 * @bin_attr: bin_attribute struct 4026 * @buf: buffer 4027 * @off: offset 4028 * @count: buffer size 4029 * 4030 * Return value: 4031 * number of bytes printed to buffer 4032 **/ 4033static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, 4034 struct bin_attribute *bin_attr, 4035 char *buf, loff_t off, size_t count) 4036{ 4037 struct device *cdev = container_of(kobj, struct device, kobj); 4038 struct Scsi_Host *shost = class_to_shost(cdev); 4039 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 4040 int rc; 4041 4042 if (!capable(CAP_SYS_ADMIN)) 4043 return -EACCES; 4044 4045 if (buf[0] == '1') 4046 rc = ipr_alloc_dump(ioa_cfg); 4047 else if (buf[0] == '0') 4048 rc = ipr_free_dump(ioa_cfg); 4049 else 4050 return -EINVAL; 4051 4052 if (rc) 4053 return rc; 4054 else 4055 return count; 4056} 4057 4058static struct bin_attribute ipr_dump_attr = { 4059 .attr = { 4060 .name = "dump", 4061 .mode = S_IRUSR | S_IWUSR, 4062 }, 4063 .size = 0, 4064 .read = ipr_read_dump, 4065 .write = ipr_write_dump 4066}; 4067#else 4068static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 4069#endif 4070 4071/** 4072 * ipr_change_queue_depth - Change the device's queue depth 4073 * @sdev: scsi device struct 4074 * @qdepth: depth to set 4075 * @reason: calling context 4076 * 4077 * Return value: 4078 * actual depth set 4079 **/ 4080static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, 4081 int reason) 4082{ 4083 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4084 struct ipr_resource_entry *res; 4085 unsigned long lock_flags = 0; 4086 4087 if (reason != SCSI_QDEPTH_DEFAULT) 4088 return -EOPNOTSUPP; 4089 4090 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4091 res = (struct ipr_resource_entry *)sdev->hostdata; 4092 4093 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 4094 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 4095 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4096 4097 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 4098 return sdev->queue_depth; 4099} 4100 4101/** 4102 * ipr_change_queue_type - Change the device's queue type 4103 * @dsev: scsi device struct 4104 * @tag_type: type of tags to use 4105 * 4106 * Return value: 4107 * actual queue type set 4108 **/ 4109static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 4110{ 4111 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4112 struct ipr_resource_entry *res; 4113 unsigned long lock_flags = 0; 4114 4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4116 res = (struct ipr_resource_entry *)sdev->hostdata; 4117 4118 if (res) { 4119 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 4120 /* 4121 * We don't bother quiescing the device here since the 4122 * adapter firmware does it for us. 4123 */ 4124 scsi_set_tag_type(sdev, tag_type); 4125 4126 if (tag_type) 4127 scsi_activate_tcq(sdev, sdev->queue_depth); 4128 else 4129 scsi_deactivate_tcq(sdev, sdev->queue_depth); 4130 } else 4131 tag_type = 0; 4132 } else 4133 tag_type = 0; 4134 4135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4136 return tag_type; 4137} 4138 4139/** 4140 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4141 * @dev: device struct 4142 * @attr: device attribute structure 4143 * @buf: buffer 4144 * 4145 * Return value: 4146 * number of bytes printed to buffer 4147 **/ 4148static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4149{ 4150 struct scsi_device *sdev = to_scsi_device(dev); 4151 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4152 struct ipr_resource_entry *res; 4153 unsigned long lock_flags = 0; 4154 ssize_t len = -ENXIO; 4155 4156 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4157 res = (struct ipr_resource_entry *)sdev->hostdata; 4158 if (res) 4159 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4161 return len; 4162} 4163 4164static struct device_attribute ipr_adapter_handle_attr = { 4165 .attr = { 4166 .name = "adapter_handle", 4167 .mode = S_IRUSR, 4168 }, 4169 .show = ipr_show_adapter_handle 4170}; 4171 4172/** 4173 * ipr_show_resource_path - Show the resource path or the resource address for 4174 * this device. 4175 * @dev: device struct 4176 * @attr: device attribute structure 4177 * @buf: buffer 4178 * 4179 * Return value: 4180 * number of bytes printed to buffer 4181 **/ 4182static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4183{ 4184 struct scsi_device *sdev = to_scsi_device(dev); 4185 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4186 struct ipr_resource_entry *res; 4187 unsigned long lock_flags = 0; 4188 ssize_t len = -ENXIO; 4189 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4190 4191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4192 res = (struct ipr_resource_entry *)sdev->hostdata; 4193 if (res && ioa_cfg->sis64) 4194 len = snprintf(buf, PAGE_SIZE, "%s\n", 4195 ipr_format_res_path(res->res_path, buffer, 4196 sizeof(buffer))); 4197 else if (res) 4198 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no, 4199 res->bus, res->target, res->lun); 4200 4201 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4202 return len; 4203} 4204 4205static struct device_attribute ipr_resource_path_attr = { 4206 .attr = { 4207 .name = "resource_path", 4208 .mode = S_IRUGO, 4209 }, 4210 .show = ipr_show_resource_path 4211}; 4212 4213/** 4214 * ipr_show_device_id - Show the device_id for this device. 4215 * @dev: device struct 4216 * @attr: device attribute structure 4217 * @buf: buffer 4218 * 4219 * Return value: 4220 * number of bytes printed to buffer 4221 **/ 4222static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) 4223{ 4224 struct scsi_device *sdev = to_scsi_device(dev); 4225 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4226 struct ipr_resource_entry *res; 4227 unsigned long lock_flags = 0; 4228 ssize_t len = -ENXIO; 4229 4230 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4231 res = (struct ipr_resource_entry *)sdev->hostdata; 4232 if (res && ioa_cfg->sis64) 4233 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id); 4234 else if (res) 4235 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); 4236 4237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4238 return len; 4239} 4240 4241static struct device_attribute ipr_device_id_attr = { 4242 .attr = { 4243 .name = "device_id", 4244 .mode = S_IRUGO, 4245 }, 4246 .show = ipr_show_device_id 4247}; 4248 4249/** 4250 * ipr_show_resource_type - Show the resource type for this device. 4251 * @dev: device struct 4252 * @attr: device attribute structure 4253 * @buf: buffer 4254 * 4255 * Return value: 4256 * number of bytes printed to buffer 4257 **/ 4258static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) 4259{ 4260 struct scsi_device *sdev = to_scsi_device(dev); 4261 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4262 struct ipr_resource_entry *res; 4263 unsigned long lock_flags = 0; 4264 ssize_t len = -ENXIO; 4265 4266 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4267 res = (struct ipr_resource_entry *)sdev->hostdata; 4268 4269 if (res) 4270 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type); 4271 4272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4273 return len; 4274} 4275 4276static struct device_attribute ipr_resource_type_attr = { 4277 .attr = { 4278 .name = "resource_type", 4279 .mode = S_IRUGO, 4280 }, 4281 .show = ipr_show_resource_type 4282}; 4283 4284static struct device_attribute *ipr_dev_attrs[] = { 4285 &ipr_adapter_handle_attr, 4286 &ipr_resource_path_attr, 4287 &ipr_device_id_attr, 4288 &ipr_resource_type_attr, 4289 NULL, 4290}; 4291 4292/** 4293 * ipr_biosparam - Return the HSC mapping 4294 * @sdev: scsi device struct 4295 * @block_device: block device pointer 4296 * @capacity: capacity of the device 4297 * @parm: Array containing returned HSC values. 4298 * 4299 * This function generates the HSC parms that fdisk uses. 4300 * We want to make sure we return something that places partitions 4301 * on 4k boundaries for best performance with the IOA. 4302 * 4303 * Return value: 4304 * 0 on success 4305 **/ 4306static int ipr_biosparam(struct scsi_device *sdev, 4307 struct block_device *block_device, 4308 sector_t capacity, int *parm) 4309{ 4310 int heads, sectors; 4311 sector_t cylinders; 4312 4313 heads = 128; 4314 sectors = 32; 4315 4316 cylinders = capacity; 4317 sector_div(cylinders, (128 * 32)); 4318 4319 /* return result */ 4320 parm[0] = heads; 4321 parm[1] = sectors; 4322 parm[2] = cylinders; 4323 4324 return 0; 4325} 4326 4327/** 4328 * ipr_find_starget - Find target based on bus/target. 4329 * @starget: scsi target struct 4330 * 4331 * Return value: 4332 * resource entry pointer if found / NULL if not found 4333 **/ 4334static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4335{ 4336 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4337 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4338 struct ipr_resource_entry *res; 4339 4340 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4341 if ((res->bus == starget->channel) && 4342 (res->target == starget->id) && 4343 (res->lun == 0)) { 4344 return res; 4345 } 4346 } 4347 4348 return NULL; 4349} 4350 4351static struct ata_port_info sata_port_info; 4352 4353/** 4354 * ipr_target_alloc - Prepare for commands to a SCSI target 4355 * @starget: scsi target struct 4356 * 4357 * If the device is a SATA device, this function allocates an 4358 * ATA port with libata, else it does nothing. 4359 * 4360 * Return value: 4361 * 0 on success / non-0 on failure 4362 **/ 4363static int ipr_target_alloc(struct scsi_target *starget) 4364{ 4365 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4366 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4367 struct ipr_sata_port *sata_port; 4368 struct ata_port *ap; 4369 struct ipr_resource_entry *res; 4370 unsigned long lock_flags; 4371 4372 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4373 res = ipr_find_starget(starget); 4374 starget->hostdata = NULL; 4375 4376 if (res && ipr_is_gata(res)) { 4377 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4378 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4379 if (!sata_port) 4380 return -ENOMEM; 4381 4382 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4383 if (ap) { 4384 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4385 sata_port->ioa_cfg = ioa_cfg; 4386 sata_port->ap = ap; 4387 sata_port->res = res; 4388 4389 res->sata_port = sata_port; 4390 ap->private_data = sata_port; 4391 starget->hostdata = sata_port; 4392 } else { 4393 kfree(sata_port); 4394 return -ENOMEM; 4395 } 4396 } 4397 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4398 4399 return 0; 4400} 4401 4402/** 4403 * ipr_target_destroy - Destroy a SCSI target 4404 * @starget: scsi target struct 4405 * 4406 * If the device was a SATA device, this function frees the libata 4407 * ATA port, else it does nothing. 4408 * 4409 **/ 4410static void ipr_target_destroy(struct scsi_target *starget) 4411{ 4412 struct ipr_sata_port *sata_port = starget->hostdata; 4413 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4414 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4415 4416 if (ioa_cfg->sis64) { 4417 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4418 clear_bit(starget->id, ioa_cfg->array_ids); 4419 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4420 clear_bit(starget->id, ioa_cfg->vset_ids); 4421 else if (starget->channel == 0) 4422 clear_bit(starget->id, ioa_cfg->target_ids); 4423 } 4424 4425 if (sata_port) { 4426 starget->hostdata = NULL; 4427 ata_sas_port_destroy(sata_port->ap); 4428 kfree(sata_port); 4429 } 4430} 4431 4432/** 4433 * ipr_find_sdev - Find device based on bus/target/lun. 4434 * @sdev: scsi device struct 4435 * 4436 * Return value: 4437 * resource entry pointer if found / NULL if not found 4438 **/ 4439static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4440{ 4441 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4442 struct ipr_resource_entry *res; 4443 4444 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4445 if ((res->bus == sdev->channel) && 4446 (res->target == sdev->id) && 4447 (res->lun == sdev->lun)) 4448 return res; 4449 } 4450 4451 return NULL; 4452} 4453 4454/** 4455 * ipr_slave_destroy - Unconfigure a SCSI device 4456 * @sdev: scsi device struct 4457 * 4458 * Return value: 4459 * nothing 4460 **/ 4461static void ipr_slave_destroy(struct scsi_device *sdev) 4462{ 4463 struct ipr_resource_entry *res; 4464 struct ipr_ioa_cfg *ioa_cfg; 4465 unsigned long lock_flags = 0; 4466 4467 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4468 4469 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4470 res = (struct ipr_resource_entry *) sdev->hostdata; 4471 if (res) { 4472 if (res->sata_port) 4473 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; 4474 sdev->hostdata = NULL; 4475 res->sdev = NULL; 4476 res->sata_port = NULL; 4477 } 4478 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4479} 4480 4481/** 4482 * ipr_slave_configure - Configure a SCSI device 4483 * @sdev: scsi device struct 4484 * 4485 * This function configures the specified scsi device. 4486 * 4487 * Return value: 4488 * 0 on success 4489 **/ 4490static int ipr_slave_configure(struct scsi_device *sdev) 4491{ 4492 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4493 struct ipr_resource_entry *res; 4494 struct ata_port *ap = NULL; 4495 unsigned long lock_flags = 0; 4496 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4497 4498 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4499 res = sdev->hostdata; 4500 if (res) { 4501 if (ipr_is_af_dasd_device(res)) 4502 sdev->type = TYPE_RAID; 4503 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4504 sdev->scsi_level = 4; 4505 sdev->no_uld_attach = 1; 4506 } 4507 if (ipr_is_vset_device(res)) { 4508 blk_queue_rq_timeout(sdev->request_queue, 4509 IPR_VSET_RW_TIMEOUT); 4510 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4511 } 4512 if (ipr_is_gata(res) && res->sata_port) 4513 ap = res->sata_port->ap; 4514 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4515 4516 if (ap) { 4517 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 4518 ata_sas_slave_configure(sdev, ap); 4519 } else 4520 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 4521 if (ioa_cfg->sis64) 4522 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4523 ipr_format_res_path(res->res_path, buffer, 4524 sizeof(buffer))); 4525 return 0; 4526 } 4527 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4528 return 0; 4529} 4530 4531/** 4532 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4533 * @sdev: scsi device struct 4534 * 4535 * This function initializes an ATA port so that future commands 4536 * sent through queuecommand will work. 4537 * 4538 * Return value: 4539 * 0 on success 4540 **/ 4541static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4542{ 4543 struct ipr_sata_port *sata_port = NULL; 4544 int rc = -ENXIO; 4545 4546 ENTER; 4547 if (sdev->sdev_target) 4548 sata_port = sdev->sdev_target->hostdata; 4549 if (sata_port) 4550 rc = ata_sas_port_init(sata_port->ap); 4551 if (rc) 4552 ipr_slave_destroy(sdev); 4553 4554 LEAVE; 4555 return rc; 4556} 4557 4558/** 4559 * ipr_slave_alloc - Prepare for commands to a device. 4560 * @sdev: scsi device struct 4561 * 4562 * This function saves a pointer to the resource entry 4563 * in the scsi device struct if the device exists. We 4564 * can then use this pointer in ipr_queuecommand when 4565 * handling new commands. 4566 * 4567 * Return value: 4568 * 0 on success / -ENXIO if device does not exist 4569 **/ 4570static int ipr_slave_alloc(struct scsi_device *sdev) 4571{ 4572 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4573 struct ipr_resource_entry *res; 4574 unsigned long lock_flags; 4575 int rc = -ENXIO; 4576 4577 sdev->hostdata = NULL; 4578 4579 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4580 4581 res = ipr_find_sdev(sdev); 4582 if (res) { 4583 res->sdev = sdev; 4584 res->add_to_ml = 0; 4585 res->in_erp = 0; 4586 sdev->hostdata = res; 4587 if (!ipr_is_naca_model(res)) 4588 res->needs_sync_complete = 1; 4589 rc = 0; 4590 if (ipr_is_gata(res)) { 4591 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4592 return ipr_ata_slave_alloc(sdev); 4593 } 4594 } 4595 4596 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4597 4598 return rc; 4599} 4600 4601/** 4602 * ipr_eh_host_reset - Reset the host adapter 4603 * @scsi_cmd: scsi command struct 4604 * 4605 * Return value: 4606 * SUCCESS / FAILED 4607 **/ 4608static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 4609{ 4610 struct ipr_ioa_cfg *ioa_cfg; 4611 int rc; 4612 4613 ENTER; 4614 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4615 4616 dev_err(&ioa_cfg->pdev->dev, 4617 "Adapter being reset as a result of error recovery.\n"); 4618 4619 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4620 ioa_cfg->sdt_state = GET_DUMP; 4621 4622 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 4623 4624 LEAVE; 4625 return rc; 4626} 4627 4628static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 4629{ 4630 int rc; 4631 4632 spin_lock_irq(cmd->device->host->host_lock); 4633 rc = __ipr_eh_host_reset(cmd); 4634 spin_unlock_irq(cmd->device->host->host_lock); 4635 4636 return rc; 4637} 4638 4639/** 4640 * ipr_device_reset - Reset the device 4641 * @ioa_cfg: ioa config struct 4642 * @res: resource entry struct 4643 * 4644 * This function issues a device reset to the affected device. 4645 * If the device is a SCSI device, a LUN reset will be sent 4646 * to the device first. If that does not work, a target reset 4647 * will be sent. If the device is a SATA device, a PHY reset will 4648 * be sent. 4649 * 4650 * Return value: 4651 * 0 on success / non-zero on failure 4652 **/ 4653static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 4654 struct ipr_resource_entry *res) 4655{ 4656 struct ipr_cmnd *ipr_cmd; 4657 struct ipr_ioarcb *ioarcb; 4658 struct ipr_cmd_pkt *cmd_pkt; 4659 struct ipr_ioarcb_ata_regs *regs; 4660 u32 ioasc; 4661 4662 ENTER; 4663 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4664 ioarcb = &ipr_cmd->ioarcb; 4665 cmd_pkt = &ioarcb->cmd_pkt; 4666 4667 if (ipr_cmd->ioa_cfg->sis64) { 4668 regs = &ipr_cmd->i.ata_ioadl.regs; 4669 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 4670 } else 4671 regs = &ioarcb->u.add_data.u.regs; 4672 4673 ioarcb->res_handle = res->res_handle; 4674 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4675 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4676 if (ipr_is_gata(res)) { 4677 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 4678 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 4679 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 4680 } 4681 4682 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4683 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4684 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4685 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { 4686 if (ipr_cmd->ioa_cfg->sis64) 4687 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 4688 sizeof(struct ipr_ioasa_gata)); 4689 else 4690 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 4691 sizeof(struct ipr_ioasa_gata)); 4692 } 4693 4694 LEAVE; 4695 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 4696} 4697 4698/** 4699 * ipr_sata_reset - Reset the SATA port 4700 * @link: SATA link to reset 4701 * @classes: class of the attached device 4702 * 4703 * This function issues a SATA phy reset to the affected ATA link. 4704 * 4705 * Return value: 4706 * 0 on success / non-zero on failure 4707 **/ 4708static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 4709 unsigned long deadline) 4710{ 4711 struct ipr_sata_port *sata_port = link->ap->private_data; 4712 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4713 struct ipr_resource_entry *res; 4714 unsigned long lock_flags = 0; 4715 int rc = -ENXIO; 4716 4717 ENTER; 4718 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4719 while(ioa_cfg->in_reset_reload) { 4720 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4721 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4722 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4723 } 4724 4725 res = sata_port->res; 4726 if (res) { 4727 rc = ipr_device_reset(ioa_cfg, res); 4728 *classes = res->ata_class; 4729 } 4730 4731 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4732 LEAVE; 4733 return rc; 4734} 4735 4736/** 4737 * ipr_eh_dev_reset - Reset the device 4738 * @scsi_cmd: scsi command struct 4739 * 4740 * This function issues a device reset to the affected device. 4741 * A LUN reset will be sent to the device first. If that does 4742 * not work, a target reset will be sent. 4743 * 4744 * Return value: 4745 * SUCCESS / FAILED 4746 **/ 4747static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 4748{ 4749 struct ipr_cmnd *ipr_cmd; 4750 struct ipr_ioa_cfg *ioa_cfg; 4751 struct ipr_resource_entry *res; 4752 struct ata_port *ap; 4753 int rc = 0; 4754 4755 ENTER; 4756 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4757 res = scsi_cmd->device->hostdata; 4758 4759 if (!res) 4760 return FAILED; 4761 4762 /* 4763 * If we are currently going through reset/reload, return failed. This will force the 4764 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 4765 * reset to complete 4766 */ 4767 if (ioa_cfg->in_reset_reload) 4768 return FAILED; 4769 if (ioa_cfg->ioa_is_dead) 4770 return FAILED; 4771 4772 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4773 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4774 if (ipr_cmd->scsi_cmd) 4775 ipr_cmd->done = ipr_scsi_eh_done; 4776 if (ipr_cmd->qc) 4777 ipr_cmd->done = ipr_sata_eh_done; 4778 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 4779 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 4780 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 4781 } 4782 } 4783 } 4784 4785 res->resetting_device = 1; 4786 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 4787 4788 if (ipr_is_gata(res) && res->sata_port) { 4789 ap = res->sata_port->ap; 4790 spin_unlock_irq(scsi_cmd->device->host->host_lock); 4791 ata_std_error_handler(ap); 4792 spin_lock_irq(scsi_cmd->device->host->host_lock); 4793 4794 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4795 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4796 rc = -EIO; 4797 break; 4798 } 4799 } 4800 } else 4801 rc = ipr_device_reset(ioa_cfg, res); 4802 res->resetting_device = 0; 4803 4804 LEAVE; 4805 return (rc ? FAILED : SUCCESS); 4806} 4807 4808static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 4809{ 4810 int rc; 4811 4812 spin_lock_irq(cmd->device->host->host_lock); 4813 rc = __ipr_eh_dev_reset(cmd); 4814 spin_unlock_irq(cmd->device->host->host_lock); 4815 4816 return rc; 4817} 4818 4819/** 4820 * ipr_bus_reset_done - Op done function for bus reset. 4821 * @ipr_cmd: ipr command struct 4822 * 4823 * This function is the op done function for a bus reset 4824 * 4825 * Return value: 4826 * none 4827 **/ 4828static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 4829{ 4830 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4831 struct ipr_resource_entry *res; 4832 4833 ENTER; 4834 if (!ioa_cfg->sis64) 4835 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4836 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 4837 scsi_report_bus_reset(ioa_cfg->host, res->bus); 4838 break; 4839 } 4840 } 4841 4842 /* 4843 * If abort has not completed, indicate the reset has, else call the 4844 * abort's done function to wake the sleeping eh thread 4845 */ 4846 if (ipr_cmd->sibling->sibling) 4847 ipr_cmd->sibling->sibling = NULL; 4848 else 4849 ipr_cmd->sibling->done(ipr_cmd->sibling); 4850 4851 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4852 LEAVE; 4853} 4854 4855/** 4856 * ipr_abort_timeout - An abort task has timed out 4857 * @ipr_cmd: ipr command struct 4858 * 4859 * This function handles when an abort task times out. If this 4860 * happens we issue a bus reset since we have resources tied 4861 * up that must be freed before returning to the midlayer. 4862 * 4863 * Return value: 4864 * none 4865 **/ 4866static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4867{ 4868 struct ipr_cmnd *reset_cmd; 4869 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4870 struct ipr_cmd_pkt *cmd_pkt; 4871 unsigned long lock_flags = 0; 4872 4873 ENTER; 4874 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4875 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4876 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4877 return; 4878 } 4879 4880 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4881 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4882 ipr_cmd->sibling = reset_cmd; 4883 reset_cmd->sibling = ipr_cmd; 4884 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4885 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4886 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4887 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4888 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4889 4890 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4891 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4892 LEAVE; 4893} 4894 4895/** 4896 * ipr_cancel_op - Cancel specified op 4897 * @scsi_cmd: scsi command struct 4898 * 4899 * This function cancels specified op. 4900 * 4901 * Return value: 4902 * SUCCESS / FAILED 4903 **/ 4904static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4905{ 4906 struct ipr_cmnd *ipr_cmd; 4907 struct ipr_ioa_cfg *ioa_cfg; 4908 struct ipr_resource_entry *res; 4909 struct ipr_cmd_pkt *cmd_pkt; 4910 u32 ioasc; 4911 int op_found = 0; 4912 4913 ENTER; 4914 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4915 res = scsi_cmd->device->hostdata; 4916 4917 /* If we are currently going through reset/reload, return failed. 4918 * This will force the mid-layer to call ipr_eh_host_reset, 4919 * which will then go to sleep and wait for the reset to complete 4920 */ 4921 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4922 return FAILED; 4923 if (!res || !ipr_is_gscsi(res)) 4924 return FAILED; 4925 4926 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4927 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4928 ipr_cmd->done = ipr_scsi_eh_done; 4929 op_found = 1; 4930 break; 4931 } 4932 } 4933 4934 if (!op_found) 4935 return SUCCESS; 4936 4937 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4938 ipr_cmd->ioarcb.res_handle = res->res_handle; 4939 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4940 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4941 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4942 ipr_cmd->u.sdev = scsi_cmd->device; 4943 4944 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4945 scsi_cmd->cmnd[0]); 4946 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4947 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4948 4949 /* 4950 * If the abort task timed out and we sent a bus reset, we will get 4951 * one the following responses to the abort 4952 */ 4953 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4954 ioasc = 0; 4955 ipr_trace; 4956 } 4957 4958 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4959 if (!ipr_is_naca_model(res)) 4960 res->needs_sync_complete = 1; 4961 4962 LEAVE; 4963 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4964} 4965 4966/** 4967 * ipr_eh_abort - Abort a single op 4968 * @scsi_cmd: scsi command struct 4969 * 4970 * Return value: 4971 * SUCCESS / FAILED 4972 **/ 4973static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4974{ 4975 unsigned long flags; 4976 int rc; 4977 4978 ENTER; 4979 4980 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 4981 rc = ipr_cancel_op(scsi_cmd); 4982 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 4983 4984 LEAVE; 4985 return rc; 4986} 4987 4988/** 4989 * ipr_handle_other_interrupt - Handle "other" interrupts 4990 * @ioa_cfg: ioa config struct 4991 * @int_reg: interrupt register 4992 * 4993 * Return value: 4994 * IRQ_NONE / IRQ_HANDLED 4995 **/ 4996static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 4997 u32 int_reg) 4998{ 4999 irqreturn_t rc = IRQ_HANDLED; 5000 u32 int_mask_reg; 5001 5002 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 5003 int_reg &= ~int_mask_reg; 5004 5005 /* If an interrupt on the adapter did not occur, ignore it. 5006 * Or in the case of SIS 64, check for a stage change interrupt. 5007 */ 5008 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) { 5009 if (ioa_cfg->sis64) { 5010 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 5011 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 5012 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 5013 5014 /* clear stage change */ 5015 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 5016 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 5017 list_del(&ioa_cfg->reset_cmd->queue); 5018 del_timer(&ioa_cfg->reset_cmd->timer); 5019 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 5020 return IRQ_HANDLED; 5021 } 5022 } 5023 5024 return IRQ_NONE; 5025 } 5026 5027 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 5028 /* Mask the interrupt */ 5029 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 5030 5031 /* Clear the interrupt */ 5032 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 5033 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 5034 5035 list_del(&ioa_cfg->reset_cmd->queue); 5036 del_timer(&ioa_cfg->reset_cmd->timer); 5037 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 5038 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { 5039 if (ipr_debug && printk_ratelimit()) 5040 dev_err(&ioa_cfg->pdev->dev, 5041 "Spurious interrupt detected. 0x%08X\n", int_reg); 5042 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 5043 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5044 return IRQ_NONE; 5045 } else { 5046 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 5047 ioa_cfg->ioa_unit_checked = 1; 5048 else 5049 dev_err(&ioa_cfg->pdev->dev, 5050 "Permanent IOA failure. 0x%08X\n", int_reg); 5051 5052 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5053 ioa_cfg->sdt_state = GET_DUMP; 5054 5055 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 5056 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5057 } 5058 5059 return rc; 5060} 5061 5062/** 5063 * ipr_isr_eh - Interrupt service routine error handler 5064 * @ioa_cfg: ioa config struct 5065 * @msg: message to log 5066 * 5067 * Return value: 5068 * none 5069 **/ 5070static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) 5071{ 5072 ioa_cfg->errors_logged++; 5073 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); 5074 5075 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5076 ioa_cfg->sdt_state = GET_DUMP; 5077 5078 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5079} 5080 5081/** 5082 * ipr_isr - Interrupt service routine 5083 * @irq: irq number 5084 * @devp: pointer to ioa config struct 5085 * 5086 * Return value: 5087 * IRQ_NONE / IRQ_HANDLED 5088 **/ 5089static irqreturn_t ipr_isr(int irq, void *devp) 5090{ 5091 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 5092 unsigned long lock_flags = 0; 5093 u32 int_reg = 0; 5094 u32 ioasc; 5095 u16 cmd_index; 5096 int num_hrrq = 0; 5097 int irq_none = 0; 5098 struct ipr_cmnd *ipr_cmd; 5099 irqreturn_t rc = IRQ_NONE; 5100 5101 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5102 5103 /* If interrupts are disabled, ignore the interrupt */ 5104 if (!ioa_cfg->allow_interrupts) { 5105 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5106 return IRQ_NONE; 5107 } 5108 5109 while (1) { 5110 ipr_cmd = NULL; 5111 5112 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 5113 ioa_cfg->toggle_bit) { 5114 5115 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 5116 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 5117 5118 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 5119 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); 5120 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5121 return IRQ_HANDLED; 5122 } 5123 5124 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 5125 5126 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5127 5128 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 5129 5130 list_del(&ipr_cmd->queue); 5131 del_timer(&ipr_cmd->timer); 5132 ipr_cmd->done(ipr_cmd); 5133 5134 rc = IRQ_HANDLED; 5135 5136 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 5137 ioa_cfg->hrrq_curr++; 5138 } else { 5139 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 5140 ioa_cfg->toggle_bit ^= 1u; 5141 } 5142 } 5143 5144 if (ipr_cmd != NULL) { 5145 /* Clear the PCI interrupt */ 5146 num_hrrq = 0; 5147 do { 5148 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 5149 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5150 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 5151 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 5152 5153 } else if (rc == IRQ_NONE && irq_none == 0) { 5154 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5155 irq_none++; 5156 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES && 5157 int_reg & IPR_PCII_HRRQ_UPDATED) { 5158 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); 5159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5160 return IRQ_HANDLED; 5161 } else 5162 break; 5163 } 5164 5165 if (unlikely(rc == IRQ_NONE)) 5166 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 5167 5168 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5169 return rc; 5170} 5171 5172/** 5173 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 5174 * @ioa_cfg: ioa config struct 5175 * @ipr_cmd: ipr command struct 5176 * 5177 * Return value: 5178 * 0 on success / -1 on failure 5179 **/ 5180static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 5181 struct ipr_cmnd *ipr_cmd) 5182{ 5183 int i, nseg; 5184 struct scatterlist *sg; 5185 u32 length; 5186 u32 ioadl_flags = 0; 5187 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5188 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5189 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5190 5191 length = scsi_bufflen(scsi_cmd); 5192 if (!length) 5193 return 0; 5194 5195 nseg = scsi_dma_map(scsi_cmd); 5196 if (nseg < 0) { 5197 if (printk_ratelimit()) 5198 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5199 return -1; 5200 } 5201 5202 ipr_cmd->dma_use_sg = nseg; 5203 5204 ioarcb->data_transfer_length = cpu_to_be32(length); 5205 ioarcb->ioadl_len = 5206 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5207 5208 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5209 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5210 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5211 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5212 ioadl_flags = IPR_IOADL_FLAGS_READ; 5213 5214 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5215 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5216 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5217 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5218 } 5219 5220 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5221 return 0; 5222} 5223 5224/** 5225 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5226 * @ioa_cfg: ioa config struct 5227 * @ipr_cmd: ipr command struct 5228 * 5229 * Return value: 5230 * 0 on success / -1 on failure 5231 **/ 5232static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5233 struct ipr_cmnd *ipr_cmd) 5234{ 5235 int i, nseg; 5236 struct scatterlist *sg; 5237 u32 length; 5238 u32 ioadl_flags = 0; 5239 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5240 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5241 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5242 5243 length = scsi_bufflen(scsi_cmd); 5244 if (!length) 5245 return 0; 5246 5247 nseg = scsi_dma_map(scsi_cmd); 5248 if (nseg < 0) { 5249 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5250 return -1; 5251 } 5252 5253 ipr_cmd->dma_use_sg = nseg; 5254 5255 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5256 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5257 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5258 ioarcb->data_transfer_length = cpu_to_be32(length); 5259 ioarcb->ioadl_len = 5260 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5261 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5262 ioadl_flags = IPR_IOADL_FLAGS_READ; 5263 ioarcb->read_data_transfer_length = cpu_to_be32(length); 5264 ioarcb->read_ioadl_len = 5265 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5266 } 5267 5268 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 5269 ioadl = ioarcb->u.add_data.u.ioadl; 5270 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 5271 offsetof(struct ipr_ioarcb, u.add_data)); 5272 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5273 } 5274 5275 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5276 ioadl[i].flags_and_data_len = 5277 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5278 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 5279 } 5280 5281 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5282 return 0; 5283} 5284 5285/** 5286 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 5287 * @scsi_cmd: scsi command struct 5288 * 5289 * Return value: 5290 * task attributes 5291 **/ 5292static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 5293{ 5294 u8 tag[2]; 5295 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 5296 5297 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 5298 switch (tag[0]) { 5299 case MSG_SIMPLE_TAG: 5300 rc = IPR_FLAGS_LO_SIMPLE_TASK; 5301 break; 5302 case MSG_HEAD_TAG: 5303 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 5304 break; 5305 case MSG_ORDERED_TAG: 5306 rc = IPR_FLAGS_LO_ORDERED_TASK; 5307 break; 5308 }; 5309 } 5310 5311 return rc; 5312} 5313 5314/** 5315 * ipr_erp_done - Process completion of ERP for a device 5316 * @ipr_cmd: ipr command struct 5317 * 5318 * This function copies the sense buffer into the scsi_cmd 5319 * struct and pushes the scsi_done function. 5320 * 5321 * Return value: 5322 * nothing 5323 **/ 5324static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 5325{ 5326 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5327 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5328 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5329 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5330 5331 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5332 scsi_cmd->result |= (DID_ERROR << 16); 5333 scmd_printk(KERN_ERR, scsi_cmd, 5334 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 5335 } else { 5336 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 5337 SCSI_SENSE_BUFFERSIZE); 5338 } 5339 5340 if (res) { 5341 if (!ipr_is_naca_model(res)) 5342 res->needs_sync_complete = 1; 5343 res->in_erp = 0; 5344 } 5345 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5346 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5347 scsi_cmd->scsi_done(scsi_cmd); 5348} 5349 5350/** 5351 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 5352 * @ipr_cmd: ipr command struct 5353 * 5354 * Return value: 5355 * none 5356 **/ 5357static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 5358{ 5359 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5360 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5361 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5362 5363 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 5364 ioarcb->data_transfer_length = 0; 5365 ioarcb->read_data_transfer_length = 0; 5366 ioarcb->ioadl_len = 0; 5367 ioarcb->read_ioadl_len = 0; 5368 ioasa->hdr.ioasc = 0; 5369 ioasa->hdr.residual_data_len = 0; 5370 5371 if (ipr_cmd->ioa_cfg->sis64) 5372 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5373 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 5374 else { 5375 ioarcb->write_ioadl_addr = 5376 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 5377 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5378 } 5379} 5380 5381/** 5382 * ipr_erp_request_sense - Send request sense to a device 5383 * @ipr_cmd: ipr command struct 5384 * 5385 * This function sends a request sense to a device as a result 5386 * of a check condition. 5387 * 5388 * Return value: 5389 * nothing 5390 **/ 5391static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 5392{ 5393 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5394 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5395 5396 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5397 ipr_erp_done(ipr_cmd); 5398 return; 5399 } 5400 5401 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5402 5403 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 5404 cmd_pkt->cdb[0] = REQUEST_SENSE; 5405 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 5406 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 5407 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5408 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 5409 5410 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 5411 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 5412 5413 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 5414 IPR_REQUEST_SENSE_TIMEOUT * 2); 5415} 5416 5417/** 5418 * ipr_erp_cancel_all - Send cancel all to a device 5419 * @ipr_cmd: ipr command struct 5420 * 5421 * This function sends a cancel all to a device to clear the 5422 * queue. If we are running TCQ on the device, QERR is set to 1, 5423 * which means all outstanding ops have been dropped on the floor. 5424 * Cancel all will return them to us. 5425 * 5426 * Return value: 5427 * nothing 5428 **/ 5429static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 5430{ 5431 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5432 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5433 struct ipr_cmd_pkt *cmd_pkt; 5434 5435 res->in_erp = 1; 5436 5437 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5438 5439 if (!scsi_get_tag_type(scsi_cmd->device)) { 5440 ipr_erp_request_sense(ipr_cmd); 5441 return; 5442 } 5443 5444 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5445 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5446 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5447 5448 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 5449 IPR_CANCEL_ALL_TIMEOUT); 5450} 5451 5452/** 5453 * ipr_dump_ioasa - Dump contents of IOASA 5454 * @ioa_cfg: ioa config struct 5455 * @ipr_cmd: ipr command struct 5456 * @res: resource entry struct 5457 * 5458 * This function is invoked by the interrupt handler when ops 5459 * fail. It will log the IOASA if appropriate. Only called 5460 * for GPDD ops. 5461 * 5462 * Return value: 5463 * none 5464 **/ 5465static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 5466 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 5467{ 5468 int i; 5469 u16 data_len; 5470 u32 ioasc, fd_ioasc; 5471 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5472 __be32 *ioasa_data = (__be32 *)ioasa; 5473 int error_index; 5474 5475 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; 5476 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; 5477 5478 if (0 == ioasc) 5479 return; 5480 5481 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 5482 return; 5483 5484 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 5485 error_index = ipr_get_error(fd_ioasc); 5486 else 5487 error_index = ipr_get_error(ioasc); 5488 5489 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 5490 /* Don't log an error if the IOA already logged one */ 5491 if (ioasa->hdr.ilid != 0) 5492 return; 5493 5494 if (!ipr_is_gscsi(res)) 5495 return; 5496 5497 if (ipr_error_table[error_index].log_ioasa == 0) 5498 return; 5499 } 5500 5501 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 5502 5503 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); 5504 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) 5505 data_len = sizeof(struct ipr_ioasa64); 5506 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) 5507 data_len = sizeof(struct ipr_ioasa); 5508 5509 ipr_err("IOASA Dump:\n"); 5510 5511 for (i = 0; i < data_len / 4; i += 4) { 5512 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 5513 be32_to_cpu(ioasa_data[i]), 5514 be32_to_cpu(ioasa_data[i+1]), 5515 be32_to_cpu(ioasa_data[i+2]), 5516 be32_to_cpu(ioasa_data[i+3])); 5517 } 5518} 5519 5520/** 5521 * ipr_gen_sense - Generate SCSI sense data from an IOASA 5522 * @ioasa: IOASA 5523 * @sense_buf: sense data buffer 5524 * 5525 * Return value: 5526 * none 5527 **/ 5528static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 5529{ 5530 u32 failing_lba; 5531 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 5532 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 5533 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5534 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); 5535 5536 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 5537 5538 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 5539 return; 5540 5541 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 5542 5543 if (ipr_is_vset_device(res) && 5544 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 5545 ioasa->u.vset.failing_lba_hi != 0) { 5546 sense_buf[0] = 0x72; 5547 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 5548 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 5549 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 5550 5551 sense_buf[7] = 12; 5552 sense_buf[8] = 0; 5553 sense_buf[9] = 0x0A; 5554 sense_buf[10] = 0x80; 5555 5556 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 5557 5558 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 5559 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 5560 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 5561 sense_buf[15] = failing_lba & 0x000000ff; 5562 5563 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5564 5565 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 5566 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 5567 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 5568 sense_buf[19] = failing_lba & 0x000000ff; 5569 } else { 5570 sense_buf[0] = 0x70; 5571 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 5572 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 5573 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 5574 5575 /* Illegal request */ 5576 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 5577 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 5578 sense_buf[7] = 10; /* additional length */ 5579 5580 /* IOARCB was in error */ 5581 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 5582 sense_buf[15] = 0xC0; 5583 else /* Parameter data was invalid */ 5584 sense_buf[15] = 0x80; 5585 5586 sense_buf[16] = 5587 ((IPR_FIELD_POINTER_MASK & 5588 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; 5589 sense_buf[17] = 5590 (IPR_FIELD_POINTER_MASK & 5591 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; 5592 } else { 5593 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 5594 if (ipr_is_vset_device(res)) 5595 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5596 else 5597 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 5598 5599 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 5600 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 5601 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 5602 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 5603 sense_buf[6] = failing_lba & 0x000000ff; 5604 } 5605 5606 sense_buf[7] = 6; /* additional length */ 5607 } 5608 } 5609} 5610 5611/** 5612 * ipr_get_autosense - Copy autosense data to sense buffer 5613 * @ipr_cmd: ipr command struct 5614 * 5615 * This function copies the autosense buffer to the buffer 5616 * in the scsi_cmd, if there is autosense available. 5617 * 5618 * Return value: 5619 * 1 if autosense was available / 0 if not 5620 **/ 5621static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 5622{ 5623 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5624 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 5625 5626 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 5627 return 0; 5628 5629 if (ipr_cmd->ioa_cfg->sis64) 5630 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, 5631 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), 5632 SCSI_SENSE_BUFFERSIZE)); 5633 else 5634 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 5635 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 5636 SCSI_SENSE_BUFFERSIZE)); 5637 return 1; 5638} 5639 5640/** 5641 * ipr_erp_start - Process an error response for a SCSI op 5642 * @ioa_cfg: ioa config struct 5643 * @ipr_cmd: ipr command struct 5644 * 5645 * This function determines whether or not to initiate ERP 5646 * on the affected device. 5647 * 5648 * Return value: 5649 * nothing 5650 **/ 5651static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 5652 struct ipr_cmnd *ipr_cmd) 5653{ 5654 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5655 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5656 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5657 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 5658 5659 if (!res) { 5660 ipr_scsi_eh_done(ipr_cmd); 5661 return; 5662 } 5663 5664 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 5665 ipr_gen_sense(ipr_cmd); 5666 5667 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5668 5669 switch (masked_ioasc) { 5670 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 5671 if (ipr_is_naca_model(res)) 5672 scsi_cmd->result |= (DID_ABORT << 16); 5673 else 5674 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5675 break; 5676 case IPR_IOASC_IR_RESOURCE_HANDLE: 5677 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 5678 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5679 break; 5680 case IPR_IOASC_HW_SEL_TIMEOUT: 5681 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5682 if (!ipr_is_naca_model(res)) 5683 res->needs_sync_complete = 1; 5684 break; 5685 case IPR_IOASC_SYNC_REQUIRED: 5686 if (!res->in_erp) 5687 res->needs_sync_complete = 1; 5688 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5689 break; 5690 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 5691 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 5692 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 5693 break; 5694 case IPR_IOASC_BUS_WAS_RESET: 5695 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 5696 /* 5697 * Report the bus reset and ask for a retry. The device 5698 * will give CC/UA the next command. 5699 */ 5700 if (!res->resetting_device) 5701 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 5702 scsi_cmd->result |= (DID_ERROR << 16); 5703 if (!ipr_is_naca_model(res)) 5704 res->needs_sync_complete = 1; 5705 break; 5706 case IPR_IOASC_HW_DEV_BUS_STATUS: 5707 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 5708 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 5709 if (!ipr_get_autosense(ipr_cmd)) { 5710 if (!ipr_is_naca_model(res)) { 5711 ipr_erp_cancel_all(ipr_cmd); 5712 return; 5713 } 5714 } 5715 } 5716 if (!ipr_is_naca_model(res)) 5717 res->needs_sync_complete = 1; 5718 break; 5719 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 5720 break; 5721 default: 5722 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5723 scsi_cmd->result |= (DID_ERROR << 16); 5724 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 5725 res->needs_sync_complete = 1; 5726 break; 5727 } 5728 5729 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5731 scsi_cmd->scsi_done(scsi_cmd); 5732} 5733 5734/** 5735 * ipr_scsi_done - mid-layer done function 5736 * @ipr_cmd: ipr command struct 5737 * 5738 * This function is invoked by the interrupt handler for 5739 * ops generated by the SCSI mid-layer 5740 * 5741 * Return value: 5742 * none 5743 **/ 5744static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 5745{ 5746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5748 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5749 5750 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); 5751 5752 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 5753 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5754 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5755 scsi_cmd->scsi_done(scsi_cmd); 5756 } else 5757 ipr_erp_start(ioa_cfg, ipr_cmd); 5758} 5759 5760/** 5761 * ipr_queuecommand - Queue a mid-layer request 5762 * @scsi_cmd: scsi command struct 5763 * @done: done function 5764 * 5765 * This function queues a request generated by the mid-layer. 5766 * 5767 * Return value: 5768 * 0 on success 5769 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 5770 * SCSI_MLQUEUE_HOST_BUSY if host is busy 5771 **/ 5772static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd, 5773 void (*done) (struct scsi_cmnd *)) 5774{ 5775 struct ipr_ioa_cfg *ioa_cfg; 5776 struct ipr_resource_entry *res; 5777 struct ipr_ioarcb *ioarcb; 5778 struct ipr_cmnd *ipr_cmd; 5779 int rc = 0; 5780 5781 scsi_cmd->scsi_done = done; 5782 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5783 res = scsi_cmd->device->hostdata; 5784 scsi_cmd->result = (DID_OK << 16); 5785 5786 /* 5787 * We are currently blocking all devices due to a host reset 5788 * We have told the host to stop giving us new requests, but 5789 * ERP ops don't count. FIXME 5790 */ 5791 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 5792 return SCSI_MLQUEUE_HOST_BUSY; 5793 5794 /* 5795 * FIXME - Create scsi_set_host_offline interface 5796 * and the ioa_is_dead check can be removed 5797 */ 5798 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 5799 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 5800 scsi_cmd->result = (DID_NO_CONNECT << 16); 5801 scsi_cmd->scsi_done(scsi_cmd); 5802 return 0; 5803 } 5804 5805 if (ipr_is_gata(res) && res->sata_port) 5806 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap); 5807 5808 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5809 ioarcb = &ipr_cmd->ioarcb; 5810 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5811 5812 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 5813 ipr_cmd->scsi_cmd = scsi_cmd; 5814 ioarcb->res_handle = res->res_handle; 5815 ipr_cmd->done = ipr_scsi_done; 5816 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5817 5818 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 5819 if (scsi_cmd->underflow == 0) 5820 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5821 5822 if (res->needs_sync_complete) { 5823 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 5824 res->needs_sync_complete = 0; 5825 } 5826 5827 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5828 if (ipr_is_gscsi(res)) 5829 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 5830 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 5831 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 5832 } 5833 5834 if (scsi_cmd->cmnd[0] >= 0xC0 && 5835 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 5836 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5837 5838 if (likely(rc == 0)) { 5839 if (ioa_cfg->sis64) 5840 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 5841 else 5842 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 5843 } 5844 5845 if (likely(rc == 0)) { 5846 mb(); 5847 ipr_send_command(ipr_cmd); 5848 } else { 5849 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5850 return SCSI_MLQUEUE_HOST_BUSY; 5851 } 5852 5853 return 0; 5854} 5855 5856static DEF_SCSI_QCMD(ipr_queuecommand) 5857 5858/** 5859 * ipr_ioctl - IOCTL handler 5860 * @sdev: scsi device struct 5861 * @cmd: IOCTL cmd 5862 * @arg: IOCTL arg 5863 * 5864 * Return value: 5865 * 0 on success / other on failure 5866 **/ 5867static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 5868{ 5869 struct ipr_resource_entry *res; 5870 5871 res = (struct ipr_resource_entry *)sdev->hostdata; 5872 if (res && ipr_is_gata(res)) { 5873 if (cmd == HDIO_GET_IDENTITY) 5874 return -ENOTTY; 5875 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 5876 } 5877 5878 return -EINVAL; 5879} 5880 5881/** 5882 * ipr_info - Get information about the card/driver 5883 * @scsi_host: scsi host struct 5884 * 5885 * Return value: 5886 * pointer to buffer with description string 5887 **/ 5888static const char * ipr_ioa_info(struct Scsi_Host *host) 5889{ 5890 static char buffer[512]; 5891 struct ipr_ioa_cfg *ioa_cfg; 5892 unsigned long lock_flags = 0; 5893 5894 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 5895 5896 spin_lock_irqsave(host->host_lock, lock_flags); 5897 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 5898 spin_unlock_irqrestore(host->host_lock, lock_flags); 5899 5900 return buffer; 5901} 5902 5903static struct scsi_host_template driver_template = { 5904 .module = THIS_MODULE, 5905 .name = "IPR", 5906 .info = ipr_ioa_info, 5907 .ioctl = ipr_ioctl, 5908 .queuecommand = ipr_queuecommand, 5909 .eh_abort_handler = ipr_eh_abort, 5910 .eh_device_reset_handler = ipr_eh_dev_reset, 5911 .eh_host_reset_handler = ipr_eh_host_reset, 5912 .slave_alloc = ipr_slave_alloc, 5913 .slave_configure = ipr_slave_configure, 5914 .slave_destroy = ipr_slave_destroy, 5915 .target_alloc = ipr_target_alloc, 5916 .target_destroy = ipr_target_destroy, 5917 .change_queue_depth = ipr_change_queue_depth, 5918 .change_queue_type = ipr_change_queue_type, 5919 .bios_param = ipr_biosparam, 5920 .can_queue = IPR_MAX_COMMANDS, 5921 .this_id = -1, 5922 .sg_tablesize = IPR_MAX_SGLIST, 5923 .max_sectors = IPR_IOA_MAX_SECTORS, 5924 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5925 .use_clustering = ENABLE_CLUSTERING, 5926 .shost_attrs = ipr_ioa_attrs, 5927 .sdev_attrs = ipr_dev_attrs, 5928 .proc_name = IPR_NAME 5929}; 5930 5931/** 5932 * ipr_ata_phy_reset - libata phy_reset handler 5933 * @ap: ata port to reset 5934 * 5935 **/ 5936static void ipr_ata_phy_reset(struct ata_port *ap) 5937{ 5938 unsigned long flags; 5939 struct ipr_sata_port *sata_port = ap->private_data; 5940 struct ipr_resource_entry *res = sata_port->res; 5941 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5942 int rc; 5943 5944 ENTER; 5945 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5946 while(ioa_cfg->in_reset_reload) { 5947 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5948 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5949 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5950 } 5951 5952 if (!ioa_cfg->allow_cmds) 5953 goto out_unlock; 5954 5955 rc = ipr_device_reset(ioa_cfg, res); 5956 5957 if (rc) { 5958 ap->link.device[0].class = ATA_DEV_NONE; 5959 goto out_unlock; 5960 } 5961 5962 ap->link.device[0].class = res->ata_class; 5963 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 5964 ap->link.device[0].class = ATA_DEV_NONE; 5965 5966out_unlock: 5967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5968 LEAVE; 5969} 5970 5971/** 5972 * ipr_ata_post_internal - Cleanup after an internal command 5973 * @qc: ATA queued command 5974 * 5975 * Return value: 5976 * none 5977 **/ 5978static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 5979{ 5980 struct ipr_sata_port *sata_port = qc->ap->private_data; 5981 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5982 struct ipr_cmnd *ipr_cmd; 5983 unsigned long flags; 5984 5985 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5986 while(ioa_cfg->in_reset_reload) { 5987 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5988 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5989 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5990 } 5991 5992 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 5993 if (ipr_cmd->qc == qc) { 5994 ipr_device_reset(ioa_cfg, sata_port->res); 5995 break; 5996 } 5997 } 5998 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5999} 6000 6001/** 6002 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 6003 * @regs: destination 6004 * @tf: source ATA taskfile 6005 * 6006 * Return value: 6007 * none 6008 **/ 6009static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 6010 struct ata_taskfile *tf) 6011{ 6012 regs->feature = tf->feature; 6013 regs->nsect = tf->nsect; 6014 regs->lbal = tf->lbal; 6015 regs->lbam = tf->lbam; 6016 regs->lbah = tf->lbah; 6017 regs->device = tf->device; 6018 regs->command = tf->command; 6019 regs->hob_feature = tf->hob_feature; 6020 regs->hob_nsect = tf->hob_nsect; 6021 regs->hob_lbal = tf->hob_lbal; 6022 regs->hob_lbam = tf->hob_lbam; 6023 regs->hob_lbah = tf->hob_lbah; 6024 regs->ctl = tf->ctl; 6025} 6026 6027/** 6028 * ipr_sata_done - done function for SATA commands 6029 * @ipr_cmd: ipr command struct 6030 * 6031 * This function is invoked by the interrupt handler for 6032 * ops generated by the SCSI mid-layer to SATA devices 6033 * 6034 * Return value: 6035 * none 6036 **/ 6037static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 6038{ 6039 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6040 struct ata_queued_cmd *qc = ipr_cmd->qc; 6041 struct ipr_sata_port *sata_port = qc->ap->private_data; 6042 struct ipr_resource_entry *res = sata_port->res; 6043 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6044 6045 if (ipr_cmd->ioa_cfg->sis64) 6046 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 6047 sizeof(struct ipr_ioasa_gata)); 6048 else 6049 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 6050 sizeof(struct ipr_ioasa_gata)); 6051 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 6052 6053 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 6054 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 6055 6056 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 6057 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); 6058 else 6059 qc->err_mask |= ac_err_mask(sata_port->ioasa.status); 6060 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6061 ata_qc_complete(qc); 6062} 6063 6064/** 6065 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 6066 * @ipr_cmd: ipr command struct 6067 * @qc: ATA queued command 6068 * 6069 **/ 6070static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 6071 struct ata_queued_cmd *qc) 6072{ 6073 u32 ioadl_flags = 0; 6074 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6075 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 6076 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 6077 int len = qc->nbytes; 6078 struct scatterlist *sg; 6079 unsigned int si; 6080 dma_addr_t dma_addr = ipr_cmd->dma_addr; 6081 6082 if (len == 0) 6083 return; 6084 6085 if (qc->dma_dir == DMA_TO_DEVICE) { 6086 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6087 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6088 } else if (qc->dma_dir == DMA_FROM_DEVICE) 6089 ioadl_flags = IPR_IOADL_FLAGS_READ; 6090 6091 ioarcb->data_transfer_length = cpu_to_be32(len); 6092 ioarcb->ioadl_len = 6093 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 6094 ioarcb->u.sis64_addr_data.data_ioadl_addr = 6095 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); 6096 6097 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6098 ioadl64->flags = cpu_to_be32(ioadl_flags); 6099 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 6100 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 6101 6102 last_ioadl64 = ioadl64; 6103 ioadl64++; 6104 } 6105 6106 if (likely(last_ioadl64)) 6107 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6108} 6109 6110/** 6111 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 6112 * @ipr_cmd: ipr command struct 6113 * @qc: ATA queued command 6114 * 6115 **/ 6116static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 6117 struct ata_queued_cmd *qc) 6118{ 6119 u32 ioadl_flags = 0; 6120 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6121 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 6122 struct ipr_ioadl_desc *last_ioadl = NULL; 6123 int len = qc->nbytes; 6124 struct scatterlist *sg; 6125 unsigned int si; 6126 6127 if (len == 0) 6128 return; 6129 6130 if (qc->dma_dir == DMA_TO_DEVICE) { 6131 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6132 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6133 ioarcb->data_transfer_length = cpu_to_be32(len); 6134 ioarcb->ioadl_len = 6135 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6136 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 6137 ioadl_flags = IPR_IOADL_FLAGS_READ; 6138 ioarcb->read_data_transfer_length = cpu_to_be32(len); 6139 ioarcb->read_ioadl_len = 6140 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6141 } 6142 6143 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6144 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 6145 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 6146 6147 last_ioadl = ioadl; 6148 ioadl++; 6149 } 6150 6151 if (likely(last_ioadl)) 6152 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6153} 6154 6155/** 6156 * ipr_qc_issue - Issue a SATA qc to a device 6157 * @qc: queued command 6158 * 6159 * Return value: 6160 * 0 if success 6161 **/ 6162static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 6163{ 6164 struct ata_port *ap = qc->ap; 6165 struct ipr_sata_port *sata_port = ap->private_data; 6166 struct ipr_resource_entry *res = sata_port->res; 6167 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6168 struct ipr_cmnd *ipr_cmd; 6169 struct ipr_ioarcb *ioarcb; 6170 struct ipr_ioarcb_ata_regs *regs; 6171 6172 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 6173 return AC_ERR_SYSTEM; 6174 6175 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6176 ioarcb = &ipr_cmd->ioarcb; 6177 6178 if (ioa_cfg->sis64) { 6179 regs = &ipr_cmd->i.ata_ioadl.regs; 6180 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 6181 } else 6182 regs = &ioarcb->u.add_data.u.regs; 6183 6184 memset(regs, 0, sizeof(*regs)); 6185 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 6186 6187 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6188 ipr_cmd->qc = qc; 6189 ipr_cmd->done = ipr_sata_done; 6190 ipr_cmd->ioarcb.res_handle = res->res_handle; 6191 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 6192 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 6193 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 6194 ipr_cmd->dma_use_sg = qc->n_elem; 6195 6196 if (ioa_cfg->sis64) 6197 ipr_build_ata_ioadl64(ipr_cmd, qc); 6198 else 6199 ipr_build_ata_ioadl(ipr_cmd, qc); 6200 6201 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 6202 ipr_copy_sata_tf(regs, &qc->tf); 6203 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 6204 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 6205 6206 switch (qc->tf.protocol) { 6207 case ATA_PROT_NODATA: 6208 case ATA_PROT_PIO: 6209 break; 6210 6211 case ATA_PROT_DMA: 6212 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6213 break; 6214 6215 case ATAPI_PROT_PIO: 6216 case ATAPI_PROT_NODATA: 6217 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6218 break; 6219 6220 case ATAPI_PROT_DMA: 6221 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6222 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6223 break; 6224 6225 default: 6226 WARN_ON(1); 6227 return AC_ERR_INVALID; 6228 } 6229 6230 mb(); 6231 6232 ipr_send_command(ipr_cmd); 6233 6234 return 0; 6235} 6236 6237/** 6238 * ipr_qc_fill_rtf - Read result TF 6239 * @qc: ATA queued command 6240 * 6241 * Return value: 6242 * true 6243 **/ 6244static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 6245{ 6246 struct ipr_sata_port *sata_port = qc->ap->private_data; 6247 struct ipr_ioasa_gata *g = &sata_port->ioasa; 6248 struct ata_taskfile *tf = &qc->result_tf; 6249 6250 tf->feature = g->error; 6251 tf->nsect = g->nsect; 6252 tf->lbal = g->lbal; 6253 tf->lbam = g->lbam; 6254 tf->lbah = g->lbah; 6255 tf->device = g->device; 6256 tf->command = g->status; 6257 tf->hob_nsect = g->hob_nsect; 6258 tf->hob_lbal = g->hob_lbal; 6259 tf->hob_lbam = g->hob_lbam; 6260 tf->hob_lbah = g->hob_lbah; 6261 tf->ctl = g->alt_status; 6262 6263 return true; 6264} 6265 6266static struct ata_port_operations ipr_sata_ops = { 6267 .phy_reset = ipr_ata_phy_reset, 6268 .hardreset = ipr_sata_reset, 6269 .post_internal_cmd = ipr_ata_post_internal, 6270 .qc_prep = ata_noop_qc_prep, 6271 .qc_issue = ipr_qc_issue, 6272 .qc_fill_rtf = ipr_qc_fill_rtf, 6273 .port_start = ata_sas_port_start, 6274 .port_stop = ata_sas_port_stop 6275}; 6276 6277static struct ata_port_info sata_port_info = { 6278 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA, 6279 .pio_mask = ATA_PIO4_ONLY, 6280 .mwdma_mask = ATA_MWDMA2, 6281 .udma_mask = ATA_UDMA6, 6282 .port_ops = &ipr_sata_ops 6283}; 6284 6285#ifdef CONFIG_PPC_PSERIES 6286static const u16 ipr_blocked_processors[] = { 6287 PV_NORTHSTAR, 6288 PV_PULSAR, 6289 PV_POWER4, 6290 PV_ICESTAR, 6291 PV_SSTAR, 6292 PV_POWER4p, 6293 PV_630, 6294 PV_630p 6295}; 6296 6297/** 6298 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 6299 * @ioa_cfg: ioa cfg struct 6300 * 6301 * Adapters that use Gemstone revision < 3.1 do not work reliably on 6302 * certain pSeries hardware. This function determines if the given 6303 * adapter is in one of these confgurations or not. 6304 * 6305 * Return value: 6306 * 1 if adapter is not supported / 0 if adapter is supported 6307 **/ 6308static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 6309{ 6310 int i; 6311 6312 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 6313 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 6314 if (__is_processor(ipr_blocked_processors[i])) 6315 return 1; 6316 } 6317 } 6318 return 0; 6319} 6320#else 6321#define ipr_invalid_adapter(ioa_cfg) 0 6322#endif 6323 6324/** 6325 * ipr_ioa_bringdown_done - IOA bring down completion. 6326 * @ipr_cmd: ipr command struct 6327 * 6328 * This function processes the completion of an adapter bring down. 6329 * It wakes any reset sleepers. 6330 * 6331 * Return value: 6332 * IPR_RC_JOB_RETURN 6333 **/ 6334static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 6335{ 6336 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6337 6338 ENTER; 6339 ioa_cfg->in_reset_reload = 0; 6340 ioa_cfg->reset_retries = 0; 6341 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6342 wake_up_all(&ioa_cfg->reset_wait_q); 6343 6344 spin_unlock_irq(ioa_cfg->host->host_lock); 6345 scsi_unblock_requests(ioa_cfg->host); 6346 spin_lock_irq(ioa_cfg->host->host_lock); 6347 LEAVE; 6348 6349 return IPR_RC_JOB_RETURN; 6350} 6351 6352/** 6353 * ipr_ioa_reset_done - IOA reset completion. 6354 * @ipr_cmd: ipr command struct 6355 * 6356 * This function processes the completion of an adapter reset. 6357 * It schedules any necessary mid-layer add/removes and 6358 * wakes any reset sleepers. 6359 * 6360 * Return value: 6361 * IPR_RC_JOB_RETURN 6362 **/ 6363static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 6364{ 6365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6366 struct ipr_resource_entry *res; 6367 struct ipr_hostrcb *hostrcb, *temp; 6368 int i = 0; 6369 6370 ENTER; 6371 ioa_cfg->in_reset_reload = 0; 6372 ioa_cfg->allow_cmds = 1; 6373 ioa_cfg->reset_cmd = NULL; 6374 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 6375 6376 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 6377 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 6378 ipr_trace; 6379 break; 6380 } 6381 } 6382 schedule_work(&ioa_cfg->work_q); 6383 6384 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 6385 list_del(&hostrcb->queue); 6386 if (i++ < IPR_NUM_LOG_HCAMS) 6387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 6388 else 6389 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 6390 } 6391 6392 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 6393 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 6394 6395 ioa_cfg->reset_retries = 0; 6396 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6397 wake_up_all(&ioa_cfg->reset_wait_q); 6398 6399 spin_unlock(ioa_cfg->host->host_lock); 6400 scsi_unblock_requests(ioa_cfg->host); 6401 spin_lock(ioa_cfg->host->host_lock); 6402 6403 if (!ioa_cfg->allow_cmds) 6404 scsi_block_requests(ioa_cfg->host); 6405 6406 LEAVE; 6407 return IPR_RC_JOB_RETURN; 6408} 6409 6410/** 6411 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 6412 * @supported_dev: supported device struct 6413 * @vpids: vendor product id struct 6414 * 6415 * Return value: 6416 * none 6417 **/ 6418static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 6419 struct ipr_std_inq_vpids *vpids) 6420{ 6421 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 6422 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 6423 supported_dev->num_records = 1; 6424 supported_dev->data_length = 6425 cpu_to_be16(sizeof(struct ipr_supported_device)); 6426 supported_dev->reserved = 0; 6427} 6428 6429/** 6430 * ipr_set_supported_devs - Send Set Supported Devices for a device 6431 * @ipr_cmd: ipr command struct 6432 * 6433 * This function sends a Set Supported Devices to the adapter 6434 * 6435 * Return value: 6436 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6437 **/ 6438static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 6439{ 6440 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6441 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 6442 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6443 struct ipr_resource_entry *res = ipr_cmd->u.res; 6444 6445 ipr_cmd->job_step = ipr_ioa_reset_done; 6446 6447 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 6448 if (!ipr_is_scsi_disk(res)) 6449 continue; 6450 6451 ipr_cmd->u.res = res; 6452 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 6453 6454 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6455 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6456 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6457 6458 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 6459 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 6460 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 6461 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 6462 6463 ipr_init_ioadl(ipr_cmd, 6464 ioa_cfg->vpd_cbs_dma + 6465 offsetof(struct ipr_misc_cbs, supp_dev), 6466 sizeof(struct ipr_supported_device), 6467 IPR_IOADL_FLAGS_WRITE_LAST); 6468 6469 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6470 IPR_SET_SUP_DEVICE_TIMEOUT); 6471 6472 if (!ioa_cfg->sis64) 6473 ipr_cmd->job_step = ipr_set_supported_devs; 6474 return IPR_RC_JOB_RETURN; 6475 } 6476 6477 return IPR_RC_JOB_CONTINUE; 6478} 6479 6480/** 6481 * ipr_get_mode_page - Locate specified mode page 6482 * @mode_pages: mode page buffer 6483 * @page_code: page code to find 6484 * @len: minimum required length for mode page 6485 * 6486 * Return value: 6487 * pointer to mode page / NULL on failure 6488 **/ 6489static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 6490 u32 page_code, u32 len) 6491{ 6492 struct ipr_mode_page_hdr *mode_hdr; 6493 u32 page_length; 6494 u32 length; 6495 6496 if (!mode_pages || (mode_pages->hdr.length == 0)) 6497 return NULL; 6498 6499 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 6500 mode_hdr = (struct ipr_mode_page_hdr *) 6501 (mode_pages->data + mode_pages->hdr.block_desc_len); 6502 6503 while (length) { 6504 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 6505 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 6506 return mode_hdr; 6507 break; 6508 } else { 6509 page_length = (sizeof(struct ipr_mode_page_hdr) + 6510 mode_hdr->page_length); 6511 length -= page_length; 6512 mode_hdr = (struct ipr_mode_page_hdr *) 6513 ((unsigned long)mode_hdr + page_length); 6514 } 6515 } 6516 return NULL; 6517} 6518 6519/** 6520 * ipr_check_term_power - Check for term power errors 6521 * @ioa_cfg: ioa config struct 6522 * @mode_pages: IOAFP mode pages buffer 6523 * 6524 * Check the IOAFP's mode page 28 for term power errors 6525 * 6526 * Return value: 6527 * nothing 6528 **/ 6529static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 6530 struct ipr_mode_pages *mode_pages) 6531{ 6532 int i; 6533 int entry_length; 6534 struct ipr_dev_bus_entry *bus; 6535 struct ipr_mode_page28 *mode_page; 6536 6537 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6538 sizeof(struct ipr_mode_page28)); 6539 6540 entry_length = mode_page->entry_length; 6541 6542 bus = mode_page->bus; 6543 6544 for (i = 0; i < mode_page->num_entries; i++) { 6545 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 6546 dev_err(&ioa_cfg->pdev->dev, 6547 "Term power is absent on scsi bus %d\n", 6548 bus->res_addr.bus); 6549 } 6550 6551 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 6552 } 6553} 6554 6555/** 6556 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 6557 * @ioa_cfg: ioa config struct 6558 * 6559 * Looks through the config table checking for SES devices. If 6560 * the SES device is in the SES table indicating a maximum SCSI 6561 * bus speed, the speed is limited for the bus. 6562 * 6563 * Return value: 6564 * none 6565 **/ 6566static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 6567{ 6568 u32 max_xfer_rate; 6569 int i; 6570 6571 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 6572 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 6573 ioa_cfg->bus_attr[i].bus_width); 6574 6575 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 6576 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 6577 } 6578} 6579 6580/** 6581 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 6582 * @ioa_cfg: ioa config struct 6583 * @mode_pages: mode page 28 buffer 6584 * 6585 * Updates mode page 28 based on driver configuration 6586 * 6587 * Return value: 6588 * none 6589 **/ 6590static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 6591 struct ipr_mode_pages *mode_pages) 6592{ 6593 int i, entry_length; 6594 struct ipr_dev_bus_entry *bus; 6595 struct ipr_bus_attributes *bus_attr; 6596 struct ipr_mode_page28 *mode_page; 6597 6598 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6599 sizeof(struct ipr_mode_page28)); 6600 6601 entry_length = mode_page->entry_length; 6602 6603 /* Loop for each device bus entry */ 6604 for (i = 0, bus = mode_page->bus; 6605 i < mode_page->num_entries; 6606 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 6607 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 6608 dev_err(&ioa_cfg->pdev->dev, 6609 "Invalid resource address reported: 0x%08X\n", 6610 IPR_GET_PHYS_LOC(bus->res_addr)); 6611 continue; 6612 } 6613 6614 bus_attr = &ioa_cfg->bus_attr[i]; 6615 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 6616 bus->bus_width = bus_attr->bus_width; 6617 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 6618 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 6619 if (bus_attr->qas_enabled) 6620 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 6621 else 6622 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 6623 } 6624} 6625 6626/** 6627 * ipr_build_mode_select - Build a mode select command 6628 * @ipr_cmd: ipr command struct 6629 * @res_handle: resource handle to send command to 6630 * @parm: Byte 2 of Mode Sense command 6631 * @dma_addr: DMA buffer address 6632 * @xfer_len: data transfer length 6633 * 6634 * Return value: 6635 * none 6636 **/ 6637static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 6638 __be32 res_handle, u8 parm, 6639 dma_addr_t dma_addr, u8 xfer_len) 6640{ 6641 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6642 6643 ioarcb->res_handle = res_handle; 6644 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6645 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6646 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 6647 ioarcb->cmd_pkt.cdb[1] = parm; 6648 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6649 6650 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 6651} 6652 6653/** 6654 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 6655 * @ipr_cmd: ipr command struct 6656 * 6657 * This function sets up the SCSI bus attributes and sends 6658 * a Mode Select for Page 28 to activate them. 6659 * 6660 * Return value: 6661 * IPR_RC_JOB_RETURN 6662 **/ 6663static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 6664{ 6665 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6666 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6667 int length; 6668 6669 ENTER; 6670 ipr_scsi_bus_speed_limit(ioa_cfg); 6671 ipr_check_term_power(ioa_cfg, mode_pages); 6672 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 6673 length = mode_pages->hdr.length + 1; 6674 mode_pages->hdr.length = 0; 6675 6676 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6677 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6678 length); 6679 6680 ipr_cmd->job_step = ipr_set_supported_devs; 6681 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6682 struct ipr_resource_entry, queue); 6683 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6684 6685 LEAVE; 6686 return IPR_RC_JOB_RETURN; 6687} 6688 6689/** 6690 * ipr_build_mode_sense - Builds a mode sense command 6691 * @ipr_cmd: ipr command struct 6692 * @res: resource entry struct 6693 * @parm: Byte 2 of mode sense command 6694 * @dma_addr: DMA address of mode sense buffer 6695 * @xfer_len: Size of DMA buffer 6696 * 6697 * Return value: 6698 * none 6699 **/ 6700static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 6701 __be32 res_handle, 6702 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 6703{ 6704 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6705 6706 ioarcb->res_handle = res_handle; 6707 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 6708 ioarcb->cmd_pkt.cdb[2] = parm; 6709 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6710 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6711 6712 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6713} 6714 6715/** 6716 * ipr_reset_cmd_failed - Handle failure of IOA reset command 6717 * @ipr_cmd: ipr command struct 6718 * 6719 * This function handles the failure of an IOA bringup command. 6720 * 6721 * Return value: 6722 * IPR_RC_JOB_RETURN 6723 **/ 6724static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 6725{ 6726 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6727 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6728 6729 dev_err(&ioa_cfg->pdev->dev, 6730 "0x%02X failed with IOASC: 0x%08X\n", 6731 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 6732 6733 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6734 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6735 return IPR_RC_JOB_RETURN; 6736} 6737 6738/** 6739 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 6740 * @ipr_cmd: ipr command struct 6741 * 6742 * This function handles the failure of a Mode Sense to the IOAFP. 6743 * Some adapters do not handle all mode pages. 6744 * 6745 * Return value: 6746 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6747 **/ 6748static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 6749{ 6750 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6751 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6752 6753 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6754 ipr_cmd->job_step = ipr_set_supported_devs; 6755 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6756 struct ipr_resource_entry, queue); 6757 return IPR_RC_JOB_CONTINUE; 6758 } 6759 6760 return ipr_reset_cmd_failed(ipr_cmd); 6761} 6762 6763/** 6764 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 6765 * @ipr_cmd: ipr command struct 6766 * 6767 * This function send a Page 28 mode sense to the IOA to 6768 * retrieve SCSI bus attributes. 6769 * 6770 * Return value: 6771 * IPR_RC_JOB_RETURN 6772 **/ 6773static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 6774{ 6775 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6776 6777 ENTER; 6778 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6779 0x28, ioa_cfg->vpd_cbs_dma + 6780 offsetof(struct ipr_misc_cbs, mode_pages), 6781 sizeof(struct ipr_mode_pages)); 6782 6783 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 6784 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 6785 6786 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6787 6788 LEAVE; 6789 return IPR_RC_JOB_RETURN; 6790} 6791 6792/** 6793 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 6794 * @ipr_cmd: ipr command struct 6795 * 6796 * This function enables dual IOA RAID support if possible. 6797 * 6798 * Return value: 6799 * IPR_RC_JOB_RETURN 6800 **/ 6801static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 6802{ 6803 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6804 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6805 struct ipr_mode_page24 *mode_page; 6806 int length; 6807 6808 ENTER; 6809 mode_page = ipr_get_mode_page(mode_pages, 0x24, 6810 sizeof(struct ipr_mode_page24)); 6811 6812 if (mode_page) 6813 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 6814 6815 length = mode_pages->hdr.length + 1; 6816 mode_pages->hdr.length = 0; 6817 6818 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6819 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6820 length); 6821 6822 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6823 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6824 6825 LEAVE; 6826 return IPR_RC_JOB_RETURN; 6827} 6828 6829/** 6830 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 6831 * @ipr_cmd: ipr command struct 6832 * 6833 * This function handles the failure of a Mode Sense to the IOAFP. 6834 * Some adapters do not handle all mode pages. 6835 * 6836 * Return value: 6837 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6838 **/ 6839static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 6840{ 6841 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6842 6843 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6844 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6845 return IPR_RC_JOB_CONTINUE; 6846 } 6847 6848 return ipr_reset_cmd_failed(ipr_cmd); 6849} 6850 6851/** 6852 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 6853 * @ipr_cmd: ipr command struct 6854 * 6855 * This function send a mode sense to the IOA to retrieve 6856 * the IOA Advanced Function Control mode page. 6857 * 6858 * Return value: 6859 * IPR_RC_JOB_RETURN 6860 **/ 6861static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 6862{ 6863 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6864 6865 ENTER; 6866 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6867 0x24, ioa_cfg->vpd_cbs_dma + 6868 offsetof(struct ipr_misc_cbs, mode_pages), 6869 sizeof(struct ipr_mode_pages)); 6870 6871 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 6872 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 6873 6874 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6875 6876 LEAVE; 6877 return IPR_RC_JOB_RETURN; 6878} 6879 6880/** 6881 * ipr_init_res_table - Initialize the resource table 6882 * @ipr_cmd: ipr command struct 6883 * 6884 * This function looks through the existing resource table, comparing 6885 * it with the config table. This function will take care of old/new 6886 * devices and schedule adding/removing them from the mid-layer 6887 * as appropriate. 6888 * 6889 * Return value: 6890 * IPR_RC_JOB_CONTINUE 6891 **/ 6892static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 6893{ 6894 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6895 struct ipr_resource_entry *res, *temp; 6896 struct ipr_config_table_entry_wrapper cfgtew; 6897 int entries, found, flag, i; 6898 LIST_HEAD(old_res); 6899 6900 ENTER; 6901 if (ioa_cfg->sis64) 6902 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 6903 else 6904 flag = ioa_cfg->u.cfg_table->hdr.flags; 6905 6906 if (flag & IPR_UCODE_DOWNLOAD_REQ) 6907 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 6908 6909 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6910 list_move_tail(&res->queue, &old_res); 6911 6912 if (ioa_cfg->sis64) 6913 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); 6914 else 6915 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 6916 6917 for (i = 0; i < entries; i++) { 6918 if (ioa_cfg->sis64) 6919 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 6920 else 6921 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 6922 found = 0; 6923 6924 list_for_each_entry_safe(res, temp, &old_res, queue) { 6925 if (ipr_is_same_device(res, &cfgtew)) { 6926 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6927 found = 1; 6928 break; 6929 } 6930 } 6931 6932 if (!found) { 6933 if (list_empty(&ioa_cfg->free_res_q)) { 6934 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6935 break; 6936 } 6937 6938 found = 1; 6939 res = list_entry(ioa_cfg->free_res_q.next, 6940 struct ipr_resource_entry, queue); 6941 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6942 ipr_init_res_entry(res, &cfgtew); 6943 res->add_to_ml = 1; 6944 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) 6945 res->sdev->allow_restart = 1; 6946 6947 if (found) 6948 ipr_update_res_entry(res, &cfgtew); 6949 } 6950 6951 list_for_each_entry_safe(res, temp, &old_res, queue) { 6952 if (res->sdev) { 6953 res->del_from_ml = 1; 6954 res->res_handle = IPR_INVALID_RES_HANDLE; 6955 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6956 } 6957 } 6958 6959 list_for_each_entry_safe(res, temp, &old_res, queue) { 6960 ipr_clear_res_target(res); 6961 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6962 } 6963 6964 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6965 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6966 else 6967 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6968 6969 LEAVE; 6970 return IPR_RC_JOB_CONTINUE; 6971} 6972 6973/** 6974 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6975 * @ipr_cmd: ipr command struct 6976 * 6977 * This function sends a Query IOA Configuration command 6978 * to the adapter to retrieve the IOA configuration table. 6979 * 6980 * Return value: 6981 * IPR_RC_JOB_RETURN 6982 **/ 6983static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 6984{ 6985 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6986 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6987 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 6988 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 6989 6990 ENTER; 6991 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 6992 ioa_cfg->dual_raid = 1; 6993 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 6994 ucode_vpd->major_release, ucode_vpd->card_type, 6995 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 6996 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6997 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6998 6999 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 7000 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; 7001 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 7002 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 7003 7004 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 7005 IPR_IOADL_FLAGS_READ_LAST); 7006 7007 ipr_cmd->job_step = ipr_init_res_table; 7008 7009 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7010 7011 LEAVE; 7012 return IPR_RC_JOB_RETURN; 7013} 7014 7015/** 7016 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 7017 * @ipr_cmd: ipr command struct 7018 * 7019 * This utility function sends an inquiry to the adapter. 7020 * 7021 * Return value: 7022 * none 7023 **/ 7024static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 7025 dma_addr_t dma_addr, u8 xfer_len) 7026{ 7027 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7028 7029 ENTER; 7030 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7031 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7032 7033 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 7034 ioarcb->cmd_pkt.cdb[1] = flags; 7035 ioarcb->cmd_pkt.cdb[2] = page; 7036 ioarcb->cmd_pkt.cdb[4] = xfer_len; 7037 7038 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 7039 7040 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7041 LEAVE; 7042} 7043 7044/** 7045 * ipr_inquiry_page_supported - Is the given inquiry page supported 7046 * @page0: inquiry page 0 buffer 7047 * @page: page code. 7048 * 7049 * This function determines if the specified inquiry page is supported. 7050 * 7051 * Return value: 7052 * 1 if page is supported / 0 if not 7053 **/ 7054static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 7055{ 7056 int i; 7057 7058 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 7059 if (page0->page[i] == page) 7060 return 1; 7061 7062 return 0; 7063} 7064 7065/** 7066 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 7067 * @ipr_cmd: ipr command struct 7068 * 7069 * This function sends a Page 0xD0 inquiry to the adapter 7070 * to retrieve adapter capabilities. 7071 * 7072 * Return value: 7073 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7074 **/ 7075static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 7076{ 7077 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7078 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 7079 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 7080 7081 ENTER; 7082 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 7083 memset(cap, 0, sizeof(*cap)); 7084 7085 if (ipr_inquiry_page_supported(page0, 0xD0)) { 7086 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 7087 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 7088 sizeof(struct ipr_inquiry_cap)); 7089 return IPR_RC_JOB_RETURN; 7090 } 7091 7092 LEAVE; 7093 return IPR_RC_JOB_CONTINUE; 7094} 7095 7096/** 7097 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 7098 * @ipr_cmd: ipr command struct 7099 * 7100 * This function sends a Page 3 inquiry to the adapter 7101 * to retrieve software VPD information. 7102 * 7103 * Return value: 7104 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7105 **/ 7106static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 7107{ 7108 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7109 7110 ENTER; 7111 7112 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 7113 7114 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 7115 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 7116 sizeof(struct ipr_inquiry_page3)); 7117 7118 LEAVE; 7119 return IPR_RC_JOB_RETURN; 7120} 7121 7122/** 7123 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 7124 * @ipr_cmd: ipr command struct 7125 * 7126 * This function sends a Page 0 inquiry to the adapter 7127 * to retrieve supported inquiry pages. 7128 * 7129 * Return value: 7130 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7131 **/ 7132static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 7133{ 7134 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7135 char type[5]; 7136 7137 ENTER; 7138 7139 /* Grab the type out of the VPD and store it away */ 7140 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 7141 type[4] = '\0'; 7142 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 7143 7144 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 7145 7146 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 7147 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 7148 sizeof(struct ipr_inquiry_page0)); 7149 7150 LEAVE; 7151 return IPR_RC_JOB_RETURN; 7152} 7153 7154/** 7155 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 7156 * @ipr_cmd: ipr command struct 7157 * 7158 * This function sends a standard inquiry to the adapter. 7159 * 7160 * Return value: 7161 * IPR_RC_JOB_RETURN 7162 **/ 7163static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 7164{ 7165 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7166 7167 ENTER; 7168 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 7169 7170 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 7171 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 7172 sizeof(struct ipr_ioa_vpd)); 7173 7174 LEAVE; 7175 return IPR_RC_JOB_RETURN; 7176} 7177 7178/** 7179 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 7180 * @ipr_cmd: ipr command struct 7181 * 7182 * This function send an Identify Host Request Response Queue 7183 * command to establish the HRRQ with the adapter. 7184 * 7185 * Return value: 7186 * IPR_RC_JOB_RETURN 7187 **/ 7188static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 7189{ 7190 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7191 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7192 7193 ENTER; 7194 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 7195 7196 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 7197 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7198 7199 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7200 if (ioa_cfg->sis64) 7201 ioarcb->cmd_pkt.cdb[1] = 0x1; 7202 ioarcb->cmd_pkt.cdb[2] = 7203 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; 7204 ioarcb->cmd_pkt.cdb[3] = 7205 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; 7206 ioarcb->cmd_pkt.cdb[4] = 7207 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; 7208 ioarcb->cmd_pkt.cdb[5] = 7209 ((u64) ioa_cfg->host_rrq_dma) & 0xff; 7210 ioarcb->cmd_pkt.cdb[7] = 7211 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 7212 ioarcb->cmd_pkt.cdb[8] = 7213 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 7214 7215 if (ioa_cfg->sis64) { 7216 ioarcb->cmd_pkt.cdb[10] = 7217 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; 7218 ioarcb->cmd_pkt.cdb[11] = 7219 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; 7220 ioarcb->cmd_pkt.cdb[12] = 7221 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; 7222 ioarcb->cmd_pkt.cdb[13] = 7223 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; 7224 } 7225 7226 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 7227 7228 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7229 7230 LEAVE; 7231 return IPR_RC_JOB_RETURN; 7232} 7233 7234/** 7235 * ipr_reset_timer_done - Adapter reset timer function 7236 * @ipr_cmd: ipr command struct 7237 * 7238 * Description: This function is used in adapter reset processing 7239 * for timing events. If the reset_cmd pointer in the IOA 7240 * config struct is not this adapter's we are doing nested 7241 * resets and fail_all_ops will take care of freeing the 7242 * command block. 7243 * 7244 * Return value: 7245 * none 7246 **/ 7247static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 7248{ 7249 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7250 unsigned long lock_flags = 0; 7251 7252 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7253 7254 if (ioa_cfg->reset_cmd == ipr_cmd) { 7255 list_del(&ipr_cmd->queue); 7256 ipr_cmd->done(ipr_cmd); 7257 } 7258 7259 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7260} 7261 7262/** 7263 * ipr_reset_start_timer - Start a timer for adapter reset job 7264 * @ipr_cmd: ipr command struct 7265 * @timeout: timeout value 7266 * 7267 * Description: This function is used in adapter reset processing 7268 * for timing events. If the reset_cmd pointer in the IOA 7269 * config struct is not this adapter's we are doing nested 7270 * resets and fail_all_ops will take care of freeing the 7271 * command block. 7272 * 7273 * Return value: 7274 * none 7275 **/ 7276static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 7277 unsigned long timeout) 7278{ 7279 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7280 ipr_cmd->done = ipr_reset_ioa_job; 7281 7282 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7283 ipr_cmd->timer.expires = jiffies + timeout; 7284 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 7285 add_timer(&ipr_cmd->timer); 7286} 7287 7288/** 7289 * ipr_init_ioa_mem - Initialize ioa_cfg control block 7290 * @ioa_cfg: ioa cfg struct 7291 * 7292 * Return value: 7293 * nothing 7294 **/ 7295static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 7296{ 7297 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 7298 7299 /* Initialize Host RRQ pointers */ 7300 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 7301 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 7302 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 7303 ioa_cfg->toggle_bit = 1; 7304 7305 /* Zero out config table */ 7306 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 7307} 7308 7309/** 7310 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 7311 * @ipr_cmd: ipr command struct 7312 * 7313 * Return value: 7314 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7315 **/ 7316static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 7317{ 7318 unsigned long stage, stage_time; 7319 u32 feedback; 7320 volatile u32 int_reg; 7321 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7322 u64 maskval = 0; 7323 7324 feedback = readl(ioa_cfg->regs.init_feedback_reg); 7325 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 7326 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 7327 7328 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 7329 7330 /* sanity check the stage_time value */ 7331 if (stage_time == 0) 7332 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; 7333 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 7334 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 7335 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 7336 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 7337 7338 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 7339 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 7340 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7341 stage_time = ioa_cfg->transop_timeout; 7342 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7343 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 7344 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 7345 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7346 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7347 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7348 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 7349 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 7350 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7351 return IPR_RC_JOB_CONTINUE; 7352 } 7353 } 7354 7355 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7356 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 7357 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7358 ipr_cmd->done = ipr_reset_ioa_job; 7359 add_timer(&ipr_cmd->timer); 7360 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7361 7362 return IPR_RC_JOB_RETURN; 7363} 7364 7365/** 7366 * ipr_reset_enable_ioa - Enable the IOA following a reset. 7367 * @ipr_cmd: ipr command struct 7368 * 7369 * This function reinitializes some control blocks and 7370 * enables destructive diagnostics on the adapter. 7371 * 7372 * Return value: 7373 * IPR_RC_JOB_RETURN 7374 **/ 7375static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 7376{ 7377 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7378 volatile u32 int_reg; 7379 volatile u64 maskval; 7380 7381 ENTER; 7382 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7383 ipr_init_ioa_mem(ioa_cfg); 7384 7385 ioa_cfg->allow_interrupts = 1; 7386 if (ioa_cfg->sis64) { 7387 /* Set the adapter to the correct endian mode. */ 7388 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 7389 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 7390 } 7391 7392 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 7393 7394 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7395 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 7396 ioa_cfg->regs.clr_interrupt_mask_reg32); 7397 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7398 return IPR_RC_JOB_CONTINUE; 7399 } 7400 7401 /* Enable destructive diagnostics on IOA */ 7402 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 7403 7404 if (ioa_cfg->sis64) { 7405 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7406 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; 7407 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); 7408 } else 7409 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 7410 7411 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7412 7413 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 7414 7415 if (ioa_cfg->sis64) { 7416 ipr_cmd->job_step = ipr_reset_next_stage; 7417 return IPR_RC_JOB_CONTINUE; 7418 } 7419 7420 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7421 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 7422 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7423 ipr_cmd->done = ipr_reset_ioa_job; 7424 add_timer(&ipr_cmd->timer); 7425 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7426 7427 LEAVE; 7428 return IPR_RC_JOB_RETURN; 7429} 7430 7431/** 7432 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 7433 * @ipr_cmd: ipr command struct 7434 * 7435 * This function is invoked when an adapter dump has run out 7436 * of processing time. 7437 * 7438 * Return value: 7439 * IPR_RC_JOB_CONTINUE 7440 **/ 7441static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 7442{ 7443 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7444 7445 if (ioa_cfg->sdt_state == GET_DUMP) 7446 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7447 else if (ioa_cfg->sdt_state == READ_DUMP) 7448 ioa_cfg->sdt_state = ABORT_DUMP; 7449 7450 ipr_cmd->job_step = ipr_reset_alert; 7451 7452 return IPR_RC_JOB_CONTINUE; 7453} 7454 7455/** 7456 * ipr_unit_check_no_data - Log a unit check/no data error log 7457 * @ioa_cfg: ioa config struct 7458 * 7459 * Logs an error indicating the adapter unit checked, but for some 7460 * reason, we were unable to fetch the unit check buffer. 7461 * 7462 * Return value: 7463 * nothing 7464 **/ 7465static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 7466{ 7467 ioa_cfg->errors_logged++; 7468 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 7469} 7470 7471/** 7472 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 7473 * @ioa_cfg: ioa config struct 7474 * 7475 * Fetches the unit check buffer from the adapter by clocking the data 7476 * through the mailbox register. 7477 * 7478 * Return value: 7479 * nothing 7480 **/ 7481static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 7482{ 7483 unsigned long mailbox; 7484 struct ipr_hostrcb *hostrcb; 7485 struct ipr_uc_sdt sdt; 7486 int rc, length; 7487 u32 ioasc; 7488 7489 mailbox = readl(ioa_cfg->ioa_mailbox); 7490 7491 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 7492 ipr_unit_check_no_data(ioa_cfg); 7493 return; 7494 } 7495 7496 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 7497 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 7498 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 7499 7500 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 7501 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 7502 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 7503 ipr_unit_check_no_data(ioa_cfg); 7504 return; 7505 } 7506 7507 /* Find length of the first sdt entry (UC buffer) */ 7508 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 7509 length = be32_to_cpu(sdt.entry[0].end_token); 7510 else 7511 length = (be32_to_cpu(sdt.entry[0].end_token) - 7512 be32_to_cpu(sdt.entry[0].start_token)) & 7513 IPR_FMT2_MBX_ADDR_MASK; 7514 7515 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 7516 struct ipr_hostrcb, queue); 7517 list_del(&hostrcb->queue); 7518 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 7519 7520 rc = ipr_get_ldump_data_section(ioa_cfg, 7521 be32_to_cpu(sdt.entry[0].start_token), 7522 (__be32 *)&hostrcb->hcam, 7523 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 7524 7525 if (!rc) { 7526 ipr_handle_log_data(ioa_cfg, hostrcb); 7527 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 7528 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 7529 ioa_cfg->sdt_state == GET_DUMP) 7530 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7531 } else 7532 ipr_unit_check_no_data(ioa_cfg); 7533 7534 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 7535} 7536 7537/** 7538 * ipr_reset_get_unit_check_job - Call to get the unit check buffer. 7539 * @ipr_cmd: ipr command struct 7540 * 7541 * Description: This function will call to get the unit check buffer. 7542 * 7543 * Return value: 7544 * IPR_RC_JOB_RETURN 7545 **/ 7546static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) 7547{ 7548 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7549 7550 ENTER; 7551 ioa_cfg->ioa_unit_checked = 0; 7552 ipr_get_unit_check_buffer(ioa_cfg); 7553 ipr_cmd->job_step = ipr_reset_alert; 7554 ipr_reset_start_timer(ipr_cmd, 0); 7555 7556 LEAVE; 7557 return IPR_RC_JOB_RETURN; 7558} 7559 7560/** 7561 * ipr_reset_restore_cfg_space - Restore PCI config space. 7562 * @ipr_cmd: ipr command struct 7563 * 7564 * Description: This function restores the saved PCI config space of 7565 * the adapter, fails all outstanding ops back to the callers, and 7566 * fetches the dump/unit check if applicable to this reset. 7567 * 7568 * Return value: 7569 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7570 **/ 7571static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 7572{ 7573 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7574 u32 int_reg; 7575 7576 ENTER; 7577 ioa_cfg->pdev->state_saved = true; 7578 pci_restore_state(ioa_cfg->pdev); 7579 7580 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 7581 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7582 return IPR_RC_JOB_CONTINUE; 7583 } 7584 7585 ipr_fail_all_ops(ioa_cfg); 7586 7587 if (ioa_cfg->sis64) { 7588 /* Set the adapter to the correct endian mode. */ 7589 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 7590 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 7591 } 7592 7593 if (ioa_cfg->ioa_unit_checked) { 7594 if (ioa_cfg->sis64) { 7595 ipr_cmd->job_step = ipr_reset_get_unit_check_job; 7596 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); 7597 return IPR_RC_JOB_RETURN; 7598 } else { 7599 ioa_cfg->ioa_unit_checked = 0; 7600 ipr_get_unit_check_buffer(ioa_cfg); 7601 ipr_cmd->job_step = ipr_reset_alert; 7602 ipr_reset_start_timer(ipr_cmd, 0); 7603 return IPR_RC_JOB_RETURN; 7604 } 7605 } 7606 7607 if (ioa_cfg->in_ioa_bringdown) { 7608 ipr_cmd->job_step = ipr_ioa_bringdown_done; 7609 } else { 7610 ipr_cmd->job_step = ipr_reset_enable_ioa; 7611 7612 if (GET_DUMP == ioa_cfg->sdt_state) { 7613 ioa_cfg->sdt_state = READ_DUMP; 7614 if (ioa_cfg->sis64) 7615 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT); 7616 else 7617 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT); 7618 ipr_cmd->job_step = ipr_reset_wait_for_dump; 7619 schedule_work(&ioa_cfg->work_q); 7620 return IPR_RC_JOB_RETURN; 7621 } 7622 } 7623 7624 LEAVE; 7625 return IPR_RC_JOB_CONTINUE; 7626} 7627 7628/** 7629 * ipr_reset_bist_done - BIST has completed on the adapter. 7630 * @ipr_cmd: ipr command struct 7631 * 7632 * Description: Unblock config space and resume the reset process. 7633 * 7634 * Return value: 7635 * IPR_RC_JOB_CONTINUE 7636 **/ 7637static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 7638{ 7639 ENTER; 7640 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7641 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 7642 LEAVE; 7643 return IPR_RC_JOB_CONTINUE; 7644} 7645 7646/** 7647 * ipr_reset_start_bist - Run BIST on the adapter. 7648 * @ipr_cmd: ipr command struct 7649 * 7650 * Description: This function runs BIST on the adapter, then delays 2 seconds. 7651 * 7652 * Return value: 7653 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7654 **/ 7655static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 7656{ 7657 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7658 int rc = PCIBIOS_SUCCESSFUL; 7659 7660 ENTER; 7661 pci_block_user_cfg_access(ioa_cfg->pdev); 7662 7663 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) 7664 writel(IPR_UPROCI_SIS64_START_BIST, 7665 ioa_cfg->regs.set_uproc_interrupt_reg32); 7666 else 7667 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 7668 7669 if (rc == PCIBIOS_SUCCESSFUL) { 7670 ipr_cmd->job_step = ipr_reset_bist_done; 7671 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7672 rc = IPR_RC_JOB_RETURN; 7673 } else { 7674 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); 7675 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7676 rc = IPR_RC_JOB_CONTINUE; 7677 } 7678 7679 LEAVE; 7680 return rc; 7681} 7682 7683/** 7684 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 7685 * @ipr_cmd: ipr command struct 7686 * 7687 * Description: This clears PCI reset to the adapter and delays two seconds. 7688 * 7689 * Return value: 7690 * IPR_RC_JOB_RETURN 7691 **/ 7692static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 7693{ 7694 ENTER; 7695 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 7696 ipr_cmd->job_step = ipr_reset_bist_done; 7697 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7698 LEAVE; 7699 return IPR_RC_JOB_RETURN; 7700} 7701 7702/** 7703 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 7704 * @ipr_cmd: ipr command struct 7705 * 7706 * Description: This asserts PCI reset to the adapter. 7707 * 7708 * Return value: 7709 * IPR_RC_JOB_RETURN 7710 **/ 7711static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 7712{ 7713 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7714 struct pci_dev *pdev = ioa_cfg->pdev; 7715 7716 ENTER; 7717 pci_block_user_cfg_access(pdev); 7718 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 7719 ipr_cmd->job_step = ipr_reset_slot_reset_done; 7720 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 7721 LEAVE; 7722 return IPR_RC_JOB_RETURN; 7723} 7724 7725/** 7726 * ipr_reset_allowed - Query whether or not IOA can be reset 7727 * @ioa_cfg: ioa config struct 7728 * 7729 * Return value: 7730 * 0 if reset not allowed / non-zero if reset is allowed 7731 **/ 7732static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 7733{ 7734 volatile u32 temp_reg; 7735 7736 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7737 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 7738} 7739 7740/** 7741 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 7742 * @ipr_cmd: ipr command struct 7743 * 7744 * Description: This function waits for adapter permission to run BIST, 7745 * then runs BIST. If the adapter does not give permission after a 7746 * reasonable time, we will reset the adapter anyway. The impact of 7747 * resetting the adapter without warning the adapter is the risk of 7748 * losing the persistent error log on the adapter. If the adapter is 7749 * reset while it is writing to the flash on the adapter, the flash 7750 * segment will have bad ECC and be zeroed. 7751 * 7752 * Return value: 7753 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7754 **/ 7755static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 7756{ 7757 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7758 int rc = IPR_RC_JOB_RETURN; 7759 7760 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 7761 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7762 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7763 } else { 7764 ipr_cmd->job_step = ioa_cfg->reset; 7765 rc = IPR_RC_JOB_CONTINUE; 7766 } 7767 7768 return rc; 7769} 7770 7771/** 7772 * ipr_reset_alert - Alert the adapter of a pending reset 7773 * @ipr_cmd: ipr command struct 7774 * 7775 * Description: This function alerts the adapter that it will be reset. 7776 * If memory space is not currently enabled, proceed directly 7777 * to running BIST on the adapter. The timer must always be started 7778 * so we guarantee we do not run BIST from ipr_isr. 7779 * 7780 * Return value: 7781 * IPR_RC_JOB_RETURN 7782 **/ 7783static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 7784{ 7785 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7786 u16 cmd_reg; 7787 int rc; 7788 7789 ENTER; 7790 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 7791 7792 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 7793 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 7794 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 7795 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 7796 } else { 7797 ipr_cmd->job_step = ioa_cfg->reset; 7798 } 7799 7800 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7801 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7802 7803 LEAVE; 7804 return IPR_RC_JOB_RETURN; 7805} 7806 7807/** 7808 * ipr_reset_ucode_download_done - Microcode download completion 7809 * @ipr_cmd: ipr command struct 7810 * 7811 * Description: This function unmaps the microcode download buffer. 7812 * 7813 * Return value: 7814 * IPR_RC_JOB_CONTINUE 7815 **/ 7816static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 7817{ 7818 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7819 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7820 7821 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 7822 sglist->num_sg, DMA_TO_DEVICE); 7823 7824 ipr_cmd->job_step = ipr_reset_alert; 7825 return IPR_RC_JOB_CONTINUE; 7826} 7827 7828/** 7829 * ipr_reset_ucode_download - Download microcode to the adapter 7830 * @ipr_cmd: ipr command struct 7831 * 7832 * Description: This function checks to see if it there is microcode 7833 * to download to the adapter. If there is, a download is performed. 7834 * 7835 * Return value: 7836 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7837 **/ 7838static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 7839{ 7840 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7841 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7842 7843 ENTER; 7844 ipr_cmd->job_step = ipr_reset_alert; 7845 7846 if (!sglist) 7847 return IPR_RC_JOB_CONTINUE; 7848 7849 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7850 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7851 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 7852 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 7853 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 7854 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 7855 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 7856 7857 if (ioa_cfg->sis64) 7858 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 7859 else 7860 ipr_build_ucode_ioadl(ipr_cmd, sglist); 7861 ipr_cmd->job_step = ipr_reset_ucode_download_done; 7862 7863 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7864 IPR_WRITE_BUFFER_TIMEOUT); 7865 7866 LEAVE; 7867 return IPR_RC_JOB_RETURN; 7868} 7869 7870/** 7871 * ipr_reset_shutdown_ioa - Shutdown the adapter 7872 * @ipr_cmd: ipr command struct 7873 * 7874 * Description: This function issues an adapter shutdown of the 7875 * specified type to the specified adapter as part of the 7876 * adapter reset job. 7877 * 7878 * Return value: 7879 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7880 **/ 7881static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 7882{ 7883 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7884 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 7885 unsigned long timeout; 7886 int rc = IPR_RC_JOB_CONTINUE; 7887 7888 ENTER; 7889 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 7890 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7891 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7892 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 7893 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 7894 7895 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 7896 timeout = IPR_SHUTDOWN_TIMEOUT; 7897 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 7898 timeout = IPR_INTERNAL_TIMEOUT; 7899 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7900 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 7901 else 7902 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 7903 7904 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 7905 7906 rc = IPR_RC_JOB_RETURN; 7907 ipr_cmd->job_step = ipr_reset_ucode_download; 7908 } else 7909 ipr_cmd->job_step = ipr_reset_alert; 7910 7911 LEAVE; 7912 return rc; 7913} 7914 7915/** 7916 * ipr_reset_ioa_job - Adapter reset job 7917 * @ipr_cmd: ipr command struct 7918 * 7919 * Description: This function is the job router for the adapter reset job. 7920 * 7921 * Return value: 7922 * none 7923 **/ 7924static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 7925{ 7926 u32 rc, ioasc; 7927 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7928 7929 do { 7930 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7931 7932 if (ioa_cfg->reset_cmd != ipr_cmd) { 7933 /* 7934 * We are doing nested adapter resets and this is 7935 * not the current reset job. 7936 */ 7937 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 7938 return; 7939 } 7940 7941 if (IPR_IOASC_SENSE_KEY(ioasc)) { 7942 rc = ipr_cmd->job_step_failed(ipr_cmd); 7943 if (rc == IPR_RC_JOB_RETURN) 7944 return; 7945 } 7946 7947 ipr_reinit_ipr_cmnd(ipr_cmd); 7948 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 7949 rc = ipr_cmd->job_step(ipr_cmd); 7950 } while(rc == IPR_RC_JOB_CONTINUE); 7951} 7952 7953/** 7954 * _ipr_initiate_ioa_reset - Initiate an adapter reset 7955 * @ioa_cfg: ioa config struct 7956 * @job_step: first job step of reset job 7957 * @shutdown_type: shutdown type 7958 * 7959 * Description: This function will initiate the reset of the given adapter 7960 * starting at the selected job step. 7961 * If the caller needs to wait on the completion of the reset, 7962 * the caller must sleep on the reset_wait_q. 7963 * 7964 * Return value: 7965 * none 7966 **/ 7967static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7968 int (*job_step) (struct ipr_cmnd *), 7969 enum ipr_shutdown_type shutdown_type) 7970{ 7971 struct ipr_cmnd *ipr_cmd; 7972 7973 ioa_cfg->in_reset_reload = 1; 7974 ioa_cfg->allow_cmds = 0; 7975 scsi_block_requests(ioa_cfg->host); 7976 7977 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 7978 ioa_cfg->reset_cmd = ipr_cmd; 7979 ipr_cmd->job_step = job_step; 7980 ipr_cmd->u.shutdown_type = shutdown_type; 7981 7982 ipr_reset_ioa_job(ipr_cmd); 7983} 7984 7985/** 7986 * ipr_initiate_ioa_reset - Initiate an adapter reset 7987 * @ioa_cfg: ioa config struct 7988 * @shutdown_type: shutdown type 7989 * 7990 * Description: This function will initiate the reset of the given adapter. 7991 * If the caller needs to wait on the completion of the reset, 7992 * the caller must sleep on the reset_wait_q. 7993 * 7994 * Return value: 7995 * none 7996 **/ 7997static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 7998 enum ipr_shutdown_type shutdown_type) 7999{ 8000 if (ioa_cfg->ioa_is_dead) 8001 return; 8002 8003 if (ioa_cfg->in_reset_reload) { 8004 if (ioa_cfg->sdt_state == GET_DUMP) 8005 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8006 else if (ioa_cfg->sdt_state == READ_DUMP) 8007 ioa_cfg->sdt_state = ABORT_DUMP; 8008 } 8009 8010 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 8011 dev_err(&ioa_cfg->pdev->dev, 8012 "IOA taken offline - error recovery failed\n"); 8013 8014 ioa_cfg->reset_retries = 0; 8015 ioa_cfg->ioa_is_dead = 1; 8016 8017 if (ioa_cfg->in_ioa_bringdown) { 8018 ioa_cfg->reset_cmd = NULL; 8019 ioa_cfg->in_reset_reload = 0; 8020 ipr_fail_all_ops(ioa_cfg); 8021 wake_up_all(&ioa_cfg->reset_wait_q); 8022 8023 spin_unlock_irq(ioa_cfg->host->host_lock); 8024 scsi_unblock_requests(ioa_cfg->host); 8025 spin_lock_irq(ioa_cfg->host->host_lock); 8026 return; 8027 } else { 8028 ioa_cfg->in_ioa_bringdown = 1; 8029 shutdown_type = IPR_SHUTDOWN_NONE; 8030 } 8031 } 8032 8033 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 8034 shutdown_type); 8035} 8036 8037/** 8038 * ipr_reset_freeze - Hold off all I/O activity 8039 * @ipr_cmd: ipr command struct 8040 * 8041 * Description: If the PCI slot is frozen, hold off all I/O 8042 * activity; then, as soon as the slot is available again, 8043 * initiate an adapter reset. 8044 */ 8045static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 8046{ 8047 /* Disallow new interrupts, avoid loop */ 8048 ipr_cmd->ioa_cfg->allow_interrupts = 0; 8049 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 8050 ipr_cmd->done = ipr_reset_ioa_job; 8051 return IPR_RC_JOB_RETURN; 8052} 8053 8054/** 8055 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 8056 * @pdev: PCI device struct 8057 * 8058 * Description: This routine is called to tell us that the PCI bus 8059 * is down. Can't do anything here, except put the device driver 8060 * into a holding pattern, waiting for the PCI bus to come back. 8061 */ 8062static void ipr_pci_frozen(struct pci_dev *pdev) 8063{ 8064 unsigned long flags = 0; 8065 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8066 8067 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8068 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 8069 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8070} 8071 8072/** 8073 * ipr_pci_slot_reset - Called when PCI slot has been reset. 8074 * @pdev: PCI device struct 8075 * 8076 * Description: This routine is called by the pci error recovery 8077 * code after the PCI slot has been reset, just before we 8078 * should resume normal operations. 8079 */ 8080static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 8081{ 8082 unsigned long flags = 0; 8083 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8084 8085 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8086 if (ioa_cfg->needs_warm_reset) 8087 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8088 else 8089 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 8090 IPR_SHUTDOWN_NONE); 8091 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8092 return PCI_ERS_RESULT_RECOVERED; 8093} 8094 8095/** 8096 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 8097 * @pdev: PCI device struct 8098 * 8099 * Description: This routine is called when the PCI bus has 8100 * permanently failed. 8101 */ 8102static void ipr_pci_perm_failure(struct pci_dev *pdev) 8103{ 8104 unsigned long flags = 0; 8105 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8106 8107 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8108 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8109 ioa_cfg->sdt_state = ABORT_DUMP; 8110 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 8111 ioa_cfg->in_ioa_bringdown = 1; 8112 ioa_cfg->allow_cmds = 0; 8113 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8115} 8116 8117/** 8118 * ipr_pci_error_detected - Called when a PCI error is detected. 8119 * @pdev: PCI device struct 8120 * @state: PCI channel state 8121 * 8122 * Description: Called when a PCI error is detected. 8123 * 8124 * Return value: 8125 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 8126 */ 8127static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 8128 pci_channel_state_t state) 8129{ 8130 switch (state) { 8131 case pci_channel_io_frozen: 8132 ipr_pci_frozen(pdev); 8133 return PCI_ERS_RESULT_NEED_RESET; 8134 case pci_channel_io_perm_failure: 8135 ipr_pci_perm_failure(pdev); 8136 return PCI_ERS_RESULT_DISCONNECT; 8137 break; 8138 default: 8139 break; 8140 } 8141 return PCI_ERS_RESULT_NEED_RESET; 8142} 8143 8144/** 8145 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 8146 * @ioa_cfg: ioa cfg struct 8147 * 8148 * Description: This is the second phase of adapter intialization 8149 * This function takes care of initilizing the adapter to the point 8150 * where it can accept new commands. 8151 8152 * Return value: 8153 * 0 on success / -EIO on failure 8154 **/ 8155static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 8156{ 8157 int rc = 0; 8158 unsigned long host_lock_flags = 0; 8159 8160 ENTER; 8161 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8162 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 8163 if (ioa_cfg->needs_hard_reset) { 8164 ioa_cfg->needs_hard_reset = 0; 8165 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8166 } else 8167 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 8168 IPR_SHUTDOWN_NONE); 8169 8170 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8171 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8172 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8173 8174 if (ioa_cfg->ioa_is_dead) { 8175 rc = -EIO; 8176 } else if (ipr_invalid_adapter(ioa_cfg)) { 8177 if (!ipr_testmode) 8178 rc = -EIO; 8179 8180 dev_err(&ioa_cfg->pdev->dev, 8181 "Adapter not supported in this hardware configuration.\n"); 8182 } 8183 8184 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8185 8186 LEAVE; 8187 return rc; 8188} 8189 8190/** 8191 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 8192 * @ioa_cfg: ioa config struct 8193 * 8194 * Return value: 8195 * none 8196 **/ 8197static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8198{ 8199 int i; 8200 8201 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8202 if (ioa_cfg->ipr_cmnd_list[i]) 8203 pci_pool_free(ioa_cfg->ipr_cmd_pool, 8204 ioa_cfg->ipr_cmnd_list[i], 8205 ioa_cfg->ipr_cmnd_list_dma[i]); 8206 8207 ioa_cfg->ipr_cmnd_list[i] = NULL; 8208 } 8209 8210 if (ioa_cfg->ipr_cmd_pool) 8211 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 8212 8213 ioa_cfg->ipr_cmd_pool = NULL; 8214} 8215 8216/** 8217 * ipr_free_mem - Frees memory allocated for an adapter 8218 * @ioa_cfg: ioa cfg struct 8219 * 8220 * Return value: 8221 * nothing 8222 **/ 8223static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 8224{ 8225 int i; 8226 8227 kfree(ioa_cfg->res_entries); 8228 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 8229 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8230 ipr_free_cmd_blks(ioa_cfg); 8231 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8232 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8233 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, 8234 ioa_cfg->u.cfg_table, 8235 ioa_cfg->cfg_table_dma); 8236 8237 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8238 pci_free_consistent(ioa_cfg->pdev, 8239 sizeof(struct ipr_hostrcb), 8240 ioa_cfg->hostrcb[i], 8241 ioa_cfg->hostrcb_dma[i]); 8242 } 8243 8244 ipr_free_dump(ioa_cfg); 8245 kfree(ioa_cfg->trace); 8246} 8247 8248/** 8249 * ipr_free_all_resources - Free all allocated resources for an adapter. 8250 * @ipr_cmd: ipr command struct 8251 * 8252 * This function frees all allocated resources for the 8253 * specified adapter. 8254 * 8255 * Return value: 8256 * none 8257 **/ 8258static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 8259{ 8260 struct pci_dev *pdev = ioa_cfg->pdev; 8261 8262 ENTER; 8263 free_irq(pdev->irq, ioa_cfg); 8264 pci_disable_msi(pdev); 8265 iounmap(ioa_cfg->hdw_dma_regs); 8266 pci_release_regions(pdev); 8267 ipr_free_mem(ioa_cfg); 8268 scsi_host_put(ioa_cfg->host); 8269 pci_disable_device(pdev); 8270 LEAVE; 8271} 8272 8273/** 8274 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 8275 * @ioa_cfg: ioa config struct 8276 * 8277 * Return value: 8278 * 0 on success / -ENOMEM on allocation failure 8279 **/ 8280static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8281{ 8282 struct ipr_cmnd *ipr_cmd; 8283 struct ipr_ioarcb *ioarcb; 8284 dma_addr_t dma_addr; 8285 int i; 8286 8287 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 8288 sizeof(struct ipr_cmnd), 16, 0); 8289 8290 if (!ioa_cfg->ipr_cmd_pool) 8291 return -ENOMEM; 8292 8293 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8294 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 8295 8296 if (!ipr_cmd) { 8297 ipr_free_cmd_blks(ioa_cfg); 8298 return -ENOMEM; 8299 } 8300 8301 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 8302 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 8303 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 8304 8305 ioarcb = &ipr_cmd->ioarcb; 8306 ipr_cmd->dma_addr = dma_addr; 8307 if (ioa_cfg->sis64) 8308 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 8309 else 8310 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 8311 8312 ioarcb->host_response_handle = cpu_to_be32(i << 2); 8313 if (ioa_cfg->sis64) { 8314 ioarcb->u.sis64_addr_data.data_ioadl_addr = 8315 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 8316 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 8317 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); 8318 } else { 8319 ioarcb->write_ioadl_addr = 8320 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 8321 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 8322 ioarcb->ioasa_host_pci_addr = 8323 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); 8324 } 8325 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 8326 ipr_cmd->cmd_index = i; 8327 ipr_cmd->ioa_cfg = ioa_cfg; 8328 ipr_cmd->sense_buffer_dma = dma_addr + 8329 offsetof(struct ipr_cmnd, sense_buffer); 8330 8331 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8332 } 8333 8334 return 0; 8335} 8336 8337/** 8338 * ipr_alloc_mem - Allocate memory for an adapter 8339 * @ioa_cfg: ioa config struct 8340 * 8341 * Return value: 8342 * 0 on success / non-zero for error 8343 **/ 8344static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 8345{ 8346 struct pci_dev *pdev = ioa_cfg->pdev; 8347 int i, rc = -ENOMEM; 8348 8349 ENTER; 8350 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 8351 ioa_cfg->max_devs_supported, GFP_KERNEL); 8352 8353 if (!ioa_cfg->res_entries) 8354 goto out; 8355 8356 if (ioa_cfg->sis64) { 8357 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * 8358 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8359 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * 8360 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8361 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * 8362 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8363 } 8364 8365 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8366 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8367 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8368 } 8369 8370 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 8371 sizeof(struct ipr_misc_cbs), 8372 &ioa_cfg->vpd_cbs_dma); 8373 8374 if (!ioa_cfg->vpd_cbs) 8375 goto out_free_res_entries; 8376 8377 if (ipr_alloc_cmd_blks(ioa_cfg)) 8378 goto out_free_vpd_cbs; 8379 8380 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 8381 sizeof(u32) * IPR_NUM_CMD_BLKS, 8382 &ioa_cfg->host_rrq_dma); 8383 8384 if (!ioa_cfg->host_rrq) 8385 goto out_ipr_free_cmd_blocks; 8386 8387 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 8388 ioa_cfg->cfg_table_size, 8389 &ioa_cfg->cfg_table_dma); 8390 8391 if (!ioa_cfg->u.cfg_table) 8392 goto out_free_host_rrq; 8393 8394 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8395 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 8396 sizeof(struct ipr_hostrcb), 8397 &ioa_cfg->hostrcb_dma[i]); 8398 8399 if (!ioa_cfg->hostrcb[i]) 8400 goto out_free_hostrcb_dma; 8401 8402 ioa_cfg->hostrcb[i]->hostrcb_dma = 8403 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 8404 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 8405 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 8406 } 8407 8408 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 8409 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 8410 8411 if (!ioa_cfg->trace) 8412 goto out_free_hostrcb_dma; 8413 8414 rc = 0; 8415out: 8416 LEAVE; 8417 return rc; 8418 8419out_free_hostrcb_dma: 8420 while (i-- > 0) { 8421 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 8422 ioa_cfg->hostrcb[i], 8423 ioa_cfg->hostrcb_dma[i]); 8424 } 8425 pci_free_consistent(pdev, ioa_cfg->cfg_table_size, 8426 ioa_cfg->u.cfg_table, 8427 ioa_cfg->cfg_table_dma); 8428out_free_host_rrq: 8429 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8430 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8431out_ipr_free_cmd_blocks: 8432 ipr_free_cmd_blks(ioa_cfg); 8433out_free_vpd_cbs: 8434 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 8435 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8436out_free_res_entries: 8437 kfree(ioa_cfg->res_entries); 8438 goto out; 8439} 8440 8441/** 8442 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 8443 * @ioa_cfg: ioa config struct 8444 * 8445 * Return value: 8446 * none 8447 **/ 8448static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 8449{ 8450 int i; 8451 8452 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 8453 ioa_cfg->bus_attr[i].bus = i; 8454 ioa_cfg->bus_attr[i].qas_enabled = 0; 8455 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 8456 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 8457 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 8458 else 8459 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 8460 } 8461} 8462 8463/** 8464 * ipr_init_ioa_cfg - Initialize IOA config struct 8465 * @ioa_cfg: ioa config struct 8466 * @host: scsi host struct 8467 * @pdev: PCI dev struct 8468 * 8469 * Return value: 8470 * none 8471 **/ 8472static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 8473 struct Scsi_Host *host, struct pci_dev *pdev) 8474{ 8475 const struct ipr_interrupt_offsets *p; 8476 struct ipr_interrupts *t; 8477 void __iomem *base; 8478 8479 ioa_cfg->host = host; 8480 ioa_cfg->pdev = pdev; 8481 ioa_cfg->log_level = ipr_log_level; 8482 ioa_cfg->doorbell = IPR_DOORBELL; 8483 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 8484 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 8485 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 8486 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 8487 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 8488 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 8489 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 8490 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 8491 8492 INIT_LIST_HEAD(&ioa_cfg->free_q); 8493 INIT_LIST_HEAD(&ioa_cfg->pending_q); 8494 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 8495 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 8496 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 8497 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 8498 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 8499 init_waitqueue_head(&ioa_cfg->reset_wait_q); 8500 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8501 ioa_cfg->sdt_state = INACTIVE; 8502 8503 ipr_initialize_bus_attr(ioa_cfg); 8504 ioa_cfg->max_devs_supported = ipr_max_devs; 8505 8506 if (ioa_cfg->sis64) { 8507 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 8508 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 8509 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 8510 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 8511 } else { 8512 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 8513 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 8514 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 8515 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 8516 } 8517 host->max_channel = IPR_MAX_BUS_TO_SCAN; 8518 host->unique_id = host->host_no; 8519 host->max_cmd_len = IPR_MAX_CDB_LEN; 8520 pci_set_drvdata(pdev, ioa_cfg); 8521 8522 p = &ioa_cfg->chip_cfg->regs; 8523 t = &ioa_cfg->regs; 8524 base = ioa_cfg->hdw_dma_regs; 8525 8526 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 8527 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 8528 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 8529 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 8530 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 8531 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 8532 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 8533 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 8534 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 8535 t->ioarrin_reg = base + p->ioarrin_reg; 8536 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 8537 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 8538 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 8539 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 8540 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 8541 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 8542 8543 if (ioa_cfg->sis64) { 8544 t->init_feedback_reg = base + p->init_feedback_reg; 8545 t->dump_addr_reg = base + p->dump_addr_reg; 8546 t->dump_data_reg = base + p->dump_data_reg; 8547 t->endian_swap_reg = base + p->endian_swap_reg; 8548 } 8549} 8550 8551/** 8552 * ipr_get_chip_info - Find adapter chip information 8553 * @dev_id: PCI device id struct 8554 * 8555 * Return value: 8556 * ptr to chip information on success / NULL on failure 8557 **/ 8558static const struct ipr_chip_t * __devinit 8559ipr_get_chip_info(const struct pci_device_id *dev_id) 8560{ 8561 int i; 8562 8563 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 8564 if (ipr_chip[i].vendor == dev_id->vendor && 8565 ipr_chip[i].device == dev_id->device) 8566 return &ipr_chip[i]; 8567 return NULL; 8568} 8569 8570/** 8571 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 8572 * @pdev: PCI device struct 8573 * 8574 * Description: Simply set the msi_received flag to 1 indicating that 8575 * Message Signaled Interrupts are supported. 8576 * 8577 * Return value: 8578 * 0 on success / non-zero on failure 8579 **/ 8580static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) 8581{ 8582 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 8583 unsigned long lock_flags = 0; 8584 irqreturn_t rc = IRQ_HANDLED; 8585 8586 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8587 8588 ioa_cfg->msi_received = 1; 8589 wake_up(&ioa_cfg->msi_wait_q); 8590 8591 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8592 return rc; 8593} 8594 8595/** 8596 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 8597 * @pdev: PCI device struct 8598 * 8599 * Description: The return value from pci_enable_msi() can not always be 8600 * trusted. This routine sets up and initiates a test interrupt to determine 8601 * if the interrupt is received via the ipr_test_intr() service routine. 8602 * If the tests fails, the driver will fall back to LSI. 8603 * 8604 * Return value: 8605 * 0 on success / non-zero on failure 8606 **/ 8607static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, 8608 struct pci_dev *pdev) 8609{ 8610 int rc; 8611 volatile u32 int_reg; 8612 unsigned long lock_flags = 0; 8613 8614 ENTER; 8615 8616 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8617 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8618 ioa_cfg->msi_received = 0; 8619 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8620 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 8621 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8622 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8623 8624 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 8625 if (rc) { 8626 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); 8627 return rc; 8628 } else if (ipr_debug) 8629 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); 8630 8631 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 8632 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8633 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 8634 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8635 8636 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8637 if (!ioa_cfg->msi_received) { 8638 /* MSI test failed */ 8639 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 8640 rc = -EOPNOTSUPP; 8641 } else if (ipr_debug) 8642 dev_info(&pdev->dev, "MSI test succeeded.\n"); 8643 8644 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8645 8646 free_irq(pdev->irq, ioa_cfg); 8647 8648 LEAVE; 8649 8650 return rc; 8651} 8652 8653/** 8654 * ipr_probe_ioa - Allocates memory and does first stage of initialization 8655 * @pdev: PCI device struct 8656 * @dev_id: PCI device id struct 8657 * 8658 * Return value: 8659 * 0 on success / non-zero on failure 8660 **/ 8661static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 8662 const struct pci_device_id *dev_id) 8663{ 8664 struct ipr_ioa_cfg *ioa_cfg; 8665 struct Scsi_Host *host; 8666 unsigned long ipr_regs_pci; 8667 void __iomem *ipr_regs; 8668 int rc = PCIBIOS_SUCCESSFUL; 8669 volatile u32 mask, uproc, interrupts; 8670 8671 ENTER; 8672 8673 if ((rc = pci_enable_device(pdev))) { 8674 dev_err(&pdev->dev, "Cannot enable adapter\n"); 8675 goto out; 8676 } 8677 8678 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 8679 8680 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 8681 8682 if (!host) { 8683 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 8684 rc = -ENOMEM; 8685 goto out_disable; 8686 } 8687 8688 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 8689 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 8690 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 8691 sata_port_info.flags, &ipr_sata_ops); 8692 8693 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 8694 8695 if (!ioa_cfg->ipr_chip) { 8696 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 8697 dev_id->vendor, dev_id->device); 8698 goto out_scsi_host_put; 8699 } 8700 8701 /* set SIS 32 or SIS 64 */ 8702 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 8703 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 8704 8705 if (ipr_transop_timeout) 8706 ioa_cfg->transop_timeout = ipr_transop_timeout; 8707 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 8708 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 8709 else 8710 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 8711 8712 ioa_cfg->revid = pdev->revision; 8713 8714 ipr_regs_pci = pci_resource_start(pdev, 0); 8715 8716 rc = pci_request_regions(pdev, IPR_NAME); 8717 if (rc < 0) { 8718 dev_err(&pdev->dev, 8719 "Couldn't register memory range of registers\n"); 8720 goto out_scsi_host_put; 8721 } 8722 8723 ipr_regs = pci_ioremap_bar(pdev, 0); 8724 8725 if (!ipr_regs) { 8726 dev_err(&pdev->dev, 8727 "Couldn't map memory range of registers\n"); 8728 rc = -ENOMEM; 8729 goto out_release_regions; 8730 } 8731 8732 ioa_cfg->hdw_dma_regs = ipr_regs; 8733 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 8734 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 8735 8736 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 8737 8738 pci_set_master(pdev); 8739 8740 if (ioa_cfg->sis64) { 8741 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 8742 if (rc < 0) { 8743 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); 8744 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8745 } 8746 8747 } else 8748 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8749 8750 if (rc < 0) { 8751 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 8752 goto cleanup_nomem; 8753 } 8754 8755 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 8756 ioa_cfg->chip_cfg->cache_line_size); 8757 8758 if (rc != PCIBIOS_SUCCESSFUL) { 8759 dev_err(&pdev->dev, "Write of cache line size failed\n"); 8760 rc = -EIO; 8761 goto cleanup_nomem; 8762 } 8763 8764 /* Enable MSI style interrupts if they are supported. */ 8765 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { 8766 rc = ipr_test_msi(ioa_cfg, pdev); 8767 if (rc == -EOPNOTSUPP) 8768 pci_disable_msi(pdev); 8769 else if (rc) 8770 goto out_msi_disable; 8771 else 8772 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); 8773 } else if (ipr_debug) 8774 dev_info(&pdev->dev, "Cannot enable MSI.\n"); 8775 8776 /* Save away PCI config space for use following IOA reset */ 8777 rc = pci_save_state(pdev); 8778 8779 if (rc != PCIBIOS_SUCCESSFUL) { 8780 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 8781 rc = -EIO; 8782 goto out_msi_disable; 8783 } 8784 8785 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 8786 goto out_msi_disable; 8787 8788 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 8789 goto out_msi_disable; 8790 8791 if (ioa_cfg->sis64) 8792 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 8793 + ((sizeof(struct ipr_config_table_entry64) 8794 * ioa_cfg->max_devs_supported))); 8795 else 8796 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 8797 + ((sizeof(struct ipr_config_table_entry) 8798 * ioa_cfg->max_devs_supported))); 8799 8800 rc = ipr_alloc_mem(ioa_cfg); 8801 if (rc < 0) { 8802 dev_err(&pdev->dev, 8803 "Couldn't allocate enough memory for device driver!\n"); 8804 goto out_msi_disable; 8805 } 8806 8807 /* 8808 * If HRRQ updated interrupt is not masked, or reset alert is set, 8809 * the card is in an unknown state and needs a hard reset 8810 */ 8811 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 8812 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 8813 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 8814 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 8815 ioa_cfg->needs_hard_reset = 1; 8816 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices) 8817 ioa_cfg->needs_hard_reset = 1; 8818 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 8819 ioa_cfg->ioa_unit_checked = 1; 8820 8821 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8822 rc = request_irq(pdev->irq, ipr_isr, 8823 ioa_cfg->msi_received ? 0 : IRQF_SHARED, 8824 IPR_NAME, ioa_cfg); 8825 8826 if (rc) { 8827 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 8828 pdev->irq, rc); 8829 goto cleanup_nolog; 8830 } 8831 8832 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 8833 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 8834 ioa_cfg->needs_warm_reset = 1; 8835 ioa_cfg->reset = ipr_reset_slot_reset; 8836 } else 8837 ioa_cfg->reset = ipr_reset_start_bist; 8838 8839 spin_lock(&ipr_driver_lock); 8840 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 8841 spin_unlock(&ipr_driver_lock); 8842 8843 LEAVE; 8844out: 8845 return rc; 8846 8847cleanup_nolog: 8848 ipr_free_mem(ioa_cfg); 8849out_msi_disable: 8850 pci_disable_msi(pdev); 8851cleanup_nomem: 8852 iounmap(ipr_regs); 8853out_release_regions: 8854 pci_release_regions(pdev); 8855out_scsi_host_put: 8856 scsi_host_put(host); 8857out_disable: 8858 pci_disable_device(pdev); 8859 goto out; 8860} 8861 8862/** 8863 * ipr_scan_vsets - Scans for VSET devices 8864 * @ioa_cfg: ioa config struct 8865 * 8866 * Description: Since the VSET resources do not follow SAM in that we can have 8867 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 8868 * 8869 * Return value: 8870 * none 8871 **/ 8872static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 8873{ 8874 int target, lun; 8875 8876 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 8877 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 8878 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 8879} 8880 8881/** 8882 * ipr_initiate_ioa_bringdown - Bring down an adapter 8883 * @ioa_cfg: ioa config struct 8884 * @shutdown_type: shutdown type 8885 * 8886 * Description: This function will initiate bringing down the adapter. 8887 * This consists of issuing an IOA shutdown to the adapter 8888 * to flush the cache, and running BIST. 8889 * If the caller needs to wait on the completion of the reset, 8890 * the caller must sleep on the reset_wait_q. 8891 * 8892 * Return value: 8893 * none 8894 **/ 8895static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 8896 enum ipr_shutdown_type shutdown_type) 8897{ 8898 ENTER; 8899 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8900 ioa_cfg->sdt_state = ABORT_DUMP; 8901 ioa_cfg->reset_retries = 0; 8902 ioa_cfg->in_ioa_bringdown = 1; 8903 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 8904 LEAVE; 8905} 8906 8907/** 8908 * __ipr_remove - Remove a single adapter 8909 * @pdev: pci device struct 8910 * 8911 * Adapter hot plug remove entry point. 8912 * 8913 * Return value: 8914 * none 8915 **/ 8916static void __ipr_remove(struct pci_dev *pdev) 8917{ 8918 unsigned long host_lock_flags = 0; 8919 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8920 ENTER; 8921 8922 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8923 while(ioa_cfg->in_reset_reload) { 8924 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8925 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8926 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8927 } 8928 8929 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 8930 8931 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8932 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8933 flush_work_sync(&ioa_cfg->work_q); 8934 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8935 8936 spin_lock(&ipr_driver_lock); 8937 list_del(&ioa_cfg->queue); 8938 spin_unlock(&ipr_driver_lock); 8939 8940 if (ioa_cfg->sdt_state == ABORT_DUMP) 8941 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8942 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8943 8944 ipr_free_all_resources(ioa_cfg); 8945 8946 LEAVE; 8947} 8948 8949/** 8950 * ipr_remove - IOA hot plug remove entry point 8951 * @pdev: pci device struct 8952 * 8953 * Adapter hot plug remove entry point. 8954 * 8955 * Return value: 8956 * none 8957 **/ 8958static void __devexit ipr_remove(struct pci_dev *pdev) 8959{ 8960 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8961 8962 ENTER; 8963 8964 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 8965 &ipr_trace_attr); 8966 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 8967 &ipr_dump_attr); 8968 scsi_remove_host(ioa_cfg->host); 8969 8970 __ipr_remove(pdev); 8971 8972 LEAVE; 8973} 8974 8975/** 8976 * ipr_probe - Adapter hot plug add entry point 8977 * 8978 * Return value: 8979 * 0 on success / non-zero on failure 8980 **/ 8981static int __devinit ipr_probe(struct pci_dev *pdev, 8982 const struct pci_device_id *dev_id) 8983{ 8984 struct ipr_ioa_cfg *ioa_cfg; 8985 int rc; 8986 8987 rc = ipr_probe_ioa(pdev, dev_id); 8988 8989 if (rc) 8990 return rc; 8991 8992 ioa_cfg = pci_get_drvdata(pdev); 8993 rc = ipr_probe_ioa_part2(ioa_cfg); 8994 8995 if (rc) { 8996 __ipr_remove(pdev); 8997 return rc; 8998 } 8999 9000 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 9001 9002 if (rc) { 9003 __ipr_remove(pdev); 9004 return rc; 9005 } 9006 9007 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 9008 &ipr_trace_attr); 9009 9010 if (rc) { 9011 scsi_remove_host(ioa_cfg->host); 9012 __ipr_remove(pdev); 9013 return rc; 9014 } 9015 9016 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 9017 &ipr_dump_attr); 9018 9019 if (rc) { 9020 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 9021 &ipr_trace_attr); 9022 scsi_remove_host(ioa_cfg->host); 9023 __ipr_remove(pdev); 9024 return rc; 9025 } 9026 9027 scsi_scan_host(ioa_cfg->host); 9028 ipr_scan_vsets(ioa_cfg); 9029 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 9030 ioa_cfg->allow_ml_add_del = 1; 9031 ioa_cfg->host->max_channel = IPR_VSET_BUS; 9032 schedule_work(&ioa_cfg->work_q); 9033 return 0; 9034} 9035 9036/** 9037 * ipr_shutdown - Shutdown handler. 9038 * @pdev: pci device struct 9039 * 9040 * This function is invoked upon system shutdown/reboot. It will issue 9041 * an adapter shutdown to the adapter to flush the write cache. 9042 * 9043 * Return value: 9044 * none 9045 **/ 9046static void ipr_shutdown(struct pci_dev *pdev) 9047{ 9048 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9049 unsigned long lock_flags = 0; 9050 9051 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 9052 while(ioa_cfg->in_reset_reload) { 9053 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 9054 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 9055 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 9056 } 9057 9058 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 9059 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 9060 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 9061} 9062 9063static struct pci_device_id ipr_pci_table[] __devinitdata = { 9064 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9065 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 9066 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9067 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 9068 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9069 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 9070 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9071 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 9072 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9073 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 9074 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9075 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 9076 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9077 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 9078 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9079 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 9080 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9081 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9082 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 9083 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9084 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 9085 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9086 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9087 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 9088 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9089 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9090 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 9091 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9092 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 9093 IPR_USE_LONG_TRANSOP_TIMEOUT}, 9094 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9095 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 9096 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9097 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9098 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 9099 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9100 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9101 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 9102 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9103 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, 9104 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9105 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 9106 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 9107 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 9108 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 9109 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9110 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 9111 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9112 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 9113 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9114 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9115 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 9116 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9117 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9118 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 9119 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9120 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 9121 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9122 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 9123 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9124 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, 9125 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9126 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 9127 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9128 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 9129 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9130 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 9131 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9132 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 }, 9133 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, 9134 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 9135 { } 9136}; 9137MODULE_DEVICE_TABLE(pci, ipr_pci_table); 9138 9139static struct pci_error_handlers ipr_err_handler = { 9140 .error_detected = ipr_pci_error_detected, 9141 .slot_reset = ipr_pci_slot_reset, 9142}; 9143 9144static struct pci_driver ipr_driver = { 9145 .name = IPR_NAME, 9146 .id_table = ipr_pci_table, 9147 .probe = ipr_probe, 9148 .remove = __devexit_p(ipr_remove), 9149 .shutdown = ipr_shutdown, 9150 .err_handler = &ipr_err_handler, 9151}; 9152 9153/** 9154 * ipr_halt_done - Shutdown prepare completion 9155 * 9156 * Return value: 9157 * none 9158 **/ 9159static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 9160{ 9161 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9162 9163 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 9164} 9165 9166/** 9167 * ipr_halt - Issue shutdown prepare to all adapters 9168 * 9169 * Return value: 9170 * NOTIFY_OK on success / NOTIFY_DONE on failure 9171 **/ 9172static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 9173{ 9174 struct ipr_cmnd *ipr_cmd; 9175 struct ipr_ioa_cfg *ioa_cfg; 9176 unsigned long flags = 0; 9177 9178 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 9179 return NOTIFY_DONE; 9180 9181 spin_lock(&ipr_driver_lock); 9182 9183 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 9184 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9185 if (!ioa_cfg->allow_cmds) { 9186 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9187 continue; 9188 } 9189 9190 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 9191 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9192 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 9193 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 9194 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 9195 9196 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 9197 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9198 } 9199 spin_unlock(&ipr_driver_lock); 9200 9201 return NOTIFY_OK; 9202} 9203 9204static struct notifier_block ipr_notifier = { 9205 ipr_halt, NULL, 0 9206}; 9207 9208/** 9209 * ipr_init - Module entry point 9210 * 9211 * Return value: 9212 * 0 on success / negative value on failure 9213 **/ 9214static int __init ipr_init(void) 9215{ 9216 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 9217 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 9218 9219 register_reboot_notifier(&ipr_notifier); 9220 return pci_register_driver(&ipr_driver); 9221} 9222 9223/** 9224 * ipr_exit - Module unload 9225 * 9226 * Module unload entry point. 9227 * 9228 * Return value: 9229 * none 9230 **/ 9231static void __exit ipr_exit(void) 9232{ 9233 unregister_reboot_notifier(&ipr_notifier); 9234 pci_unregister_driver(&ipr_driver); 9235} 9236 9237module_init(ipr_init); 9238module_exit(ipr_exit); 9239