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 .max_cmds = 100, 108 .cache_line_size = 0x20, 109 .clear_isr = 1, 110 { 111 .set_interrupt_mask_reg = 0x0022C, 112 .clr_interrupt_mask_reg = 0x00230, 113 .clr_interrupt_mask_reg32 = 0x00230, 114 .sense_interrupt_mask_reg = 0x0022C, 115 .sense_interrupt_mask_reg32 = 0x0022C, 116 .clr_interrupt_reg = 0x00228, 117 .clr_interrupt_reg32 = 0x00228, 118 .sense_interrupt_reg = 0x00224, 119 .sense_interrupt_reg32 = 0x00224, 120 .ioarrin_reg = 0x00404, 121 .sense_uproc_interrupt_reg = 0x00214, 122 .sense_uproc_interrupt_reg32 = 0x00214, 123 .set_uproc_interrupt_reg = 0x00214, 124 .set_uproc_interrupt_reg32 = 0x00214, 125 .clr_uproc_interrupt_reg = 0x00218, 126 .clr_uproc_interrupt_reg32 = 0x00218 127 } 128 }, 129 { /* Snipe and Scamp */ 130 .mailbox = 0x0052C, 131 .max_cmds = 100, 132 .cache_line_size = 0x20, 133 .clear_isr = 1, 134 { 135 .set_interrupt_mask_reg = 0x00288, 136 .clr_interrupt_mask_reg = 0x0028C, 137 .clr_interrupt_mask_reg32 = 0x0028C, 138 .sense_interrupt_mask_reg = 0x00288, 139 .sense_interrupt_mask_reg32 = 0x00288, 140 .clr_interrupt_reg = 0x00284, 141 .clr_interrupt_reg32 = 0x00284, 142 .sense_interrupt_reg = 0x00280, 143 .sense_interrupt_reg32 = 0x00280, 144 .ioarrin_reg = 0x00504, 145 .sense_uproc_interrupt_reg = 0x00290, 146 .sense_uproc_interrupt_reg32 = 0x00290, 147 .set_uproc_interrupt_reg = 0x00290, 148 .set_uproc_interrupt_reg32 = 0x00290, 149 .clr_uproc_interrupt_reg = 0x00294, 150 .clr_uproc_interrupt_reg32 = 0x00294 151 } 152 }, 153 { /* CRoC */ 154 .mailbox = 0x00044, 155 .max_cmds = 1000, 156 .cache_line_size = 0x20, 157 .clear_isr = 0, 158 { 159 .set_interrupt_mask_reg = 0x00010, 160 .clr_interrupt_mask_reg = 0x00018, 161 .clr_interrupt_mask_reg32 = 0x0001C, 162 .sense_interrupt_mask_reg = 0x00010, 163 .sense_interrupt_mask_reg32 = 0x00014, 164 .clr_interrupt_reg = 0x00008, 165 .clr_interrupt_reg32 = 0x0000C, 166 .sense_interrupt_reg = 0x00000, 167 .sense_interrupt_reg32 = 0x00004, 168 .ioarrin_reg = 0x00070, 169 .sense_uproc_interrupt_reg = 0x00020, 170 .sense_uproc_interrupt_reg32 = 0x00024, 171 .set_uproc_interrupt_reg = 0x00020, 172 .set_uproc_interrupt_reg32 = 0x00024, 173 .clr_uproc_interrupt_reg = 0x00028, 174 .clr_uproc_interrupt_reg32 = 0x0002C, 175 .init_feedback_reg = 0x0005C, 176 .dump_addr_reg = 0x00064, 177 .dump_data_reg = 0x00068, 178 .endian_swap_reg = 0x00084 179 } 180 }, 181}; 182 183static const struct ipr_chip_t ipr_chip[] = { 184 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 186 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 187 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 188 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 189 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, 190 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, 191 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, 192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } 193}; 194 195static int ipr_max_bus_speeds [] = { 196 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 197}; 198 199MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 200MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 201module_param_named(max_speed, ipr_max_speed, uint, 0); 202MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 203module_param_named(log_level, ipr_log_level, uint, 0); 204MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 205module_param_named(testmode, ipr_testmode, int, 0); 206MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 207module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); 208MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 209module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 210MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 211module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); 212MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 213module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 214MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 215module_param_named(max_devs, ipr_max_devs, int, 0); 216MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " 217 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); 218MODULE_LICENSE("GPL"); 219MODULE_VERSION(IPR_DRIVER_VERSION); 220 221/* A constant array of IOASCs/URCs/Error Messages */ 222static const 223struct ipr_error_table_t ipr_error_table[] = { 224 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 225 "8155: An unknown error was received"}, 226 {0x00330000, 0, 0, 227 "Soft underlength error"}, 228 {0x005A0000, 0, 0, 229 "Command to be cancelled not found"}, 230 {0x00808000, 0, 0, 231 "Qualified success"}, 232 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 233 "FFFE: Soft device bus error recovered by the IOA"}, 234 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 235 "4101: Soft device bus fabric error"}, 236 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, 237 "FFFC: Logical block guard error recovered by the device"}, 238 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, 239 "FFFC: Logical block reference tag error recovered by the device"}, 240 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, 241 "4171: Recovered scatter list tag / sequence number error"}, 242 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, 243 "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, 244 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, 245 "4171: Recovered logical block sequence number error on IOA to Host transfer"}, 246 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, 247 "FFFD: Recovered logical block reference tag error detected by the IOA"}, 248 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, 249 "FFFD: Logical block guard error recovered by the IOA"}, 250 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 251 "FFF9: Device sector reassign successful"}, 252 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 253 "FFF7: Media error recovered by device rewrite procedures"}, 254 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 255 "7001: IOA sector reassignment successful"}, 256 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 257 "FFF9: Soft media error. Sector reassignment recommended"}, 258 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 259 "FFF7: Media error recovered by IOA rewrite procedures"}, 260 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 261 "FF3D: Soft PCI bus error recovered by the IOA"}, 262 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 263 "FFF6: Device hardware error recovered by the IOA"}, 264 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 265 "FFF6: Device hardware error recovered by the device"}, 266 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 267 "FF3D: Soft IOA error recovered by the IOA"}, 268 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 269 "FFFA: Undefined device response recovered by the IOA"}, 270 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 271 "FFF6: Device bus error, message or command phase"}, 272 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 273 "FFFE: Task Management Function failed"}, 274 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 275 "FFF6: Failure prediction threshold exceeded"}, 276 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 277 "8009: Impending cache battery pack failure"}, 278 {0x02040400, 0, 0, 279 "34FF: Disk device format in progress"}, 280 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 281 "9070: IOA requested reset"}, 282 {0x023F0000, 0, 0, 283 "Synchronization required"}, 284 {0x024E0000, 0, 0, 285 "No ready, IOA shutdown"}, 286 {0x025A0000, 0, 0, 287 "Not ready, IOA has been shutdown"}, 288 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 289 "3020: Storage subsystem configuration error"}, 290 {0x03110B00, 0, 0, 291 "FFF5: Medium error, data unreadable, recommend reassign"}, 292 {0x03110C00, 0, 0, 293 "7000: Medium error, data unreadable, do not reassign"}, 294 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 295 "FFF3: Disk media format bad"}, 296 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 297 "3002: Addressed device failed to respond to selection"}, 298 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 299 "3100: Device bus error"}, 300 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 301 "3109: IOA timed out a device command"}, 302 {0x04088000, 0, 0, 303 "3120: SCSI bus is not operational"}, 304 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 305 "4100: Hard device bus fabric error"}, 306 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, 307 "310C: Logical block guard error detected by the device"}, 308 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, 309 "310C: Logical block reference tag error detected by the device"}, 310 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, 311 "4170: Scatter list tag / sequence number error"}, 312 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, 313 "8150: Logical block CRC error on IOA to Host transfer"}, 314 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, 315 "4170: Logical block sequence number error on IOA to Host transfer"}, 316 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, 317 "310D: Logical block reference tag error detected by the IOA"}, 318 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, 319 "310D: Logical block guard error detected by the IOA"}, 320 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 321 "9000: IOA reserved area data check"}, 322 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 323 "9001: IOA reserved area invalid data pattern"}, 324 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 325 "9002: IOA reserved area LRC error"}, 326 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, 327 "Hardware Error, IOA metadata access error"}, 328 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 329 "102E: Out of alternate sectors for disk storage"}, 330 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 331 "FFF4: Data transfer underlength error"}, 332 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 333 "FFF4: Data transfer overlength error"}, 334 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 335 "3400: Logical unit failure"}, 336 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 337 "FFF4: Device microcode is corrupt"}, 338 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 339 "8150: PCI bus error"}, 340 {0x04430000, 1, 0, 341 "Unsupported device bus message received"}, 342 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 343 "FFF4: Disk device problem"}, 344 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 345 "8150: Permanent IOA failure"}, 346 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 347 "3010: Disk device returned wrong response to IOA"}, 348 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 349 "8151: IOA microcode error"}, 350 {0x04448500, 0, 0, 351 "Device bus status error"}, 352 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 353 "8157: IOA error requiring IOA reset to recover"}, 354 {0x04448700, 0, 0, 355 "ATA device status error"}, 356 {0x04490000, 0, 0, 357 "Message reject received from the device"}, 358 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 359 "8008: A permanent cache battery pack failure occurred"}, 360 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 361 "9090: Disk unit has been modified after the last known status"}, 362 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 363 "9081: IOA detected device error"}, 364 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 365 "9082: IOA detected device error"}, 366 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 367 "3110: Device bus error, message or command phase"}, 368 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 369 "3110: SAS Command / Task Management Function failed"}, 370 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 371 "9091: Incorrect hardware configuration change has been detected"}, 372 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 373 "9073: Invalid multi-adapter configuration"}, 374 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 375 "4010: Incorrect connection between cascaded expanders"}, 376 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 377 "4020: Connections exceed IOA design limits"}, 378 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 379 "4030: Incorrect multipath connection"}, 380 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 381 "4110: Unsupported enclosure function"}, 382 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 383 "FFF4: Command to logical unit failed"}, 384 {0x05240000, 1, 0, 385 "Illegal request, invalid request type or request packet"}, 386 {0x05250000, 0, 0, 387 "Illegal request, invalid resource handle"}, 388 {0x05258000, 0, 0, 389 "Illegal request, commands not allowed to this device"}, 390 {0x05258100, 0, 0, 391 "Illegal request, command not allowed to a secondary adapter"}, 392 {0x05258200, 0, 0, 393 "Illegal request, command not allowed to a non-optimized resource"}, 394 {0x05260000, 0, 0, 395 "Illegal request, invalid field in parameter list"}, 396 {0x05260100, 0, 0, 397 "Illegal request, parameter not supported"}, 398 {0x05260200, 0, 0, 399 "Illegal request, parameter value invalid"}, 400 {0x052C0000, 0, 0, 401 "Illegal request, command sequence error"}, 402 {0x052C8000, 1, 0, 403 "Illegal request, dual adapter support not enabled"}, 404 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 405 "9031: Array protection temporarily suspended, protection resuming"}, 406 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 407 "9040: Array protection temporarily suspended, protection resuming"}, 408 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 409 "3140: Device bus not ready to ready transition"}, 410 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 411 "FFFB: SCSI bus was reset"}, 412 {0x06290500, 0, 0, 413 "FFFE: SCSI bus transition to single ended"}, 414 {0x06290600, 0, 0, 415 "FFFE: SCSI bus transition to LVD"}, 416 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 417 "FFFB: SCSI bus was reset by another initiator"}, 418 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 419 "3029: A device replacement has occurred"}, 420 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 421 "9051: IOA cache data exists for a missing or failed device"}, 422 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 423 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 424 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 425 "9025: Disk unit is not supported at its physical location"}, 426 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 427 "3020: IOA detected a SCSI bus configuration error"}, 428 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 429 "3150: SCSI bus configuration error"}, 430 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 431 "9074: Asymmetric advanced function disk configuration"}, 432 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 433 "4040: Incomplete multipath connection between IOA and enclosure"}, 434 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 435 "4041: Incomplete multipath connection between enclosure and device"}, 436 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 437 "9075: Incomplete multipath connection between IOA and remote IOA"}, 438 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 439 "9076: Configuration error, missing remote IOA"}, 440 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 441 "4050: Enclosure does not support a required multipath function"}, 442 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, 443 "4070: Logically bad block written on device"}, 444 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 445 "9041: Array protection temporarily suspended"}, 446 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 447 "9042: Corrupt array parity detected on specified device"}, 448 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 449 "9030: Array no longer protected due to missing or failed disk unit"}, 450 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 451 "9071: Link operational transition"}, 452 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 453 "9072: Link not operational transition"}, 454 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 455 "9032: Array exposed but still protected"}, 456 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, 457 "70DD: Device forced failed by disrupt device command"}, 458 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 459 "4061: Multipath redundancy level got better"}, 460 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 461 "4060: Multipath redundancy level got worse"}, 462 {0x07270000, 0, 0, 463 "Failure due to other device"}, 464 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 465 "9008: IOA does not support functions expected by devices"}, 466 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 467 "9010: Cache data associated with attached devices cannot be found"}, 468 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 469 "9011: Cache data belongs to devices other than those attached"}, 470 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 471 "9020: Array missing 2 or more devices with only 1 device present"}, 472 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 473 "9021: Array missing 2 or more devices with 2 or more devices present"}, 474 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 475 "9022: Exposed array is missing a required device"}, 476 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 477 "9023: Array member(s) not at required physical locations"}, 478 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 479 "9024: Array not functional due to present hardware configuration"}, 480 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 481 "9026: Array not functional due to present hardware configuration"}, 482 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 483 "9027: Array is missing a device and parity is out of sync"}, 484 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 485 "9028: Maximum number of arrays already exist"}, 486 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 487 "9050: Required cache data cannot be located for a disk unit"}, 488 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 489 "9052: Cache data exists for a device that has been modified"}, 490 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 491 "9054: IOA resources not available due to previous problems"}, 492 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 493 "9092: Disk unit requires initialization before use"}, 494 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 495 "9029: Incorrect hardware configuration change has been detected"}, 496 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 497 "9060: One or more disk pairs are missing from an array"}, 498 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 499 "9061: One or more disks are missing from an array"}, 500 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 501 "9062: One or more disks are missing from an array"}, 502 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 503 "9063: Maximum number of functional arrays has been exceeded"}, 504 {0x0B260000, 0, 0, 505 "Aborted command, invalid descriptor"}, 506 {0x0B5A0000, 0, 0, 507 "Command terminated by host"} 508}; 509 510static const struct ipr_ses_table_entry ipr_ses_table[] = { 511 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 512 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 513 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 514 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 515 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 516 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 517 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 518 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 519 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 520 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 521 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 522 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 523 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 524}; 525 526/* 527 * Function Prototypes 528 */ 529static int ipr_reset_alert(struct ipr_cmnd *); 530static void ipr_process_ccn(struct ipr_cmnd *); 531static void ipr_process_error(struct ipr_cmnd *); 532static void ipr_reset_ioa_job(struct ipr_cmnd *); 533static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 534 enum ipr_shutdown_type); 535 536#ifdef CONFIG_SCSI_IPR_TRACE 537/** 538 * ipr_trc_hook - Add a trace entry to the driver trace 539 * @ipr_cmd: ipr command struct 540 * @type: trace type 541 * @add_data: additional data 542 * 543 * Return value: 544 * none 545 **/ 546static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 547 u8 type, u32 add_data) 548{ 549 struct ipr_trace_entry *trace_entry; 550 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 551 552 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; 553 trace_entry->time = jiffies; 554 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 555 trace_entry->type = type; 556 if (ipr_cmd->ioa_cfg->sis64) 557 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; 558 else 559 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; 560 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 561 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 562 trace_entry->u.add_data = add_data; 563} 564#else 565#define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) 566#endif 567 568/** 569 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 570 * @ipr_cmd: ipr command struct 571 * 572 * Return value: 573 * none 574 **/ 575static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 576{ 577 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 578 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 579 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 580 dma_addr_t dma_addr = ipr_cmd->dma_addr; 581 582 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 583 ioarcb->data_transfer_length = 0; 584 ioarcb->read_data_transfer_length = 0; 585 ioarcb->ioadl_len = 0; 586 ioarcb->read_ioadl_len = 0; 587 588 if (ipr_cmd->ioa_cfg->sis64) { 589 ioarcb->u.sis64_addr_data.data_ioadl_addr = 590 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 591 ioasa64->u.gata.status = 0; 592 } else { 593 ioarcb->write_ioadl_addr = 594 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 595 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 596 ioasa->u.gata.status = 0; 597 } 598 599 ioasa->hdr.ioasc = 0; 600 ioasa->hdr.residual_data_len = 0; 601 ipr_cmd->scsi_cmd = NULL; 602 ipr_cmd->qc = NULL; 603 ipr_cmd->sense_buffer[0] = 0; 604 ipr_cmd->dma_use_sg = 0; 605} 606 607/** 608 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 609 * @ipr_cmd: ipr command struct 610 * 611 * Return value: 612 * none 613 **/ 614static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 615{ 616 ipr_reinit_ipr_cmnd(ipr_cmd); 617 ipr_cmd->u.scratch = 0; 618 ipr_cmd->sibling = NULL; 619 init_timer(&ipr_cmd->timer); 620} 621 622/** 623 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 624 * @ioa_cfg: ioa config struct 625 * 626 * Return value: 627 * pointer to ipr command struct 628 **/ 629static 630struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 631{ 632 struct ipr_cmnd *ipr_cmd; 633 634 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); 635 list_del(&ipr_cmd->queue); 636 ipr_init_ipr_cmnd(ipr_cmd); 637 638 return ipr_cmd; 639} 640 641/** 642 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 643 * @ioa_cfg: ioa config struct 644 * @clr_ints: interrupts to clear 645 * 646 * This function masks all interrupts on the adapter, then clears the 647 * interrupts specified in the mask 648 * 649 * Return value: 650 * none 651 **/ 652static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 653 u32 clr_ints) 654{ 655 volatile u32 int_reg; 656 657 /* Stop new interrupts */ 658 ioa_cfg->allow_interrupts = 0; 659 660 /* Set interrupt mask to stop all new interrupts */ 661 if (ioa_cfg->sis64) 662 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); 663 else 664 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 665 666 /* Clear any pending interrupts */ 667 if (ioa_cfg->sis64) 668 writel(~0, ioa_cfg->regs.clr_interrupt_reg); 669 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); 670 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 671} 672 673/** 674 * ipr_save_pcix_cmd_reg - Save PCI-X command register 675 * @ioa_cfg: ioa config struct 676 * 677 * Return value: 678 * 0 on success / -EIO on failure 679 **/ 680static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 681{ 682 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 683 684 if (pcix_cmd_reg == 0) 685 return 0; 686 687 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 688 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 689 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 690 return -EIO; 691 } 692 693 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 694 return 0; 695} 696 697/** 698 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 699 * @ioa_cfg: ioa config struct 700 * 701 * Return value: 702 * 0 on success / -EIO on failure 703 **/ 704static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 705{ 706 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 707 708 if (pcix_cmd_reg) { 709 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 710 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 711 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 712 return -EIO; 713 } 714 } 715 716 return 0; 717} 718 719/** 720 * ipr_sata_eh_done - done function for aborted SATA commands 721 * @ipr_cmd: ipr command struct 722 * 723 * This function is invoked for ops generated to SATA 724 * devices which are being aborted. 725 * 726 * Return value: 727 * none 728 **/ 729static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 730{ 731 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 732 struct ata_queued_cmd *qc = ipr_cmd->qc; 733 struct ipr_sata_port *sata_port = qc->ap->private_data; 734 735 qc->err_mask |= AC_ERR_OTHER; 736 sata_port->ioasa.status |= ATA_BUSY; 737 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 738 ata_qc_complete(qc); 739} 740 741/** 742 * ipr_scsi_eh_done - mid-layer done function for aborted ops 743 * @ipr_cmd: ipr command struct 744 * 745 * This function is invoked by the interrupt handler for 746 * ops generated by the SCSI mid-layer which are being aborted. 747 * 748 * Return value: 749 * none 750 **/ 751static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 752{ 753 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 754 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 755 756 scsi_cmd->result |= (DID_ERROR << 16); 757 758 scsi_dma_unmap(ipr_cmd->scsi_cmd); 759 scsi_cmd->scsi_done(scsi_cmd); 760 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 761} 762 763/** 764 * ipr_fail_all_ops - Fails all outstanding ops. 765 * @ioa_cfg: ioa config struct 766 * 767 * This function fails all outstanding ops. 768 * 769 * Return value: 770 * none 771 **/ 772static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 773{ 774 struct ipr_cmnd *ipr_cmd, *temp; 775 776 ENTER; 777 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { 778 list_del(&ipr_cmd->queue); 779 780 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 781 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID); 782 783 if (ipr_cmd->scsi_cmd) 784 ipr_cmd->done = ipr_scsi_eh_done; 785 else if (ipr_cmd->qc) 786 ipr_cmd->done = ipr_sata_eh_done; 787 788 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); 789 del_timer(&ipr_cmd->timer); 790 ipr_cmd->done(ipr_cmd); 791 } 792 793 LEAVE; 794} 795 796/** 797 * ipr_send_command - Send driver initiated requests. 798 * @ipr_cmd: ipr command struct 799 * 800 * This function sends a command to the adapter using the correct write call. 801 * In the case of sis64, calculate the ioarcb size required. Then or in the 802 * appropriate bits. 803 * 804 * Return value: 805 * none 806 **/ 807static void ipr_send_command(struct ipr_cmnd *ipr_cmd) 808{ 809 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 810 dma_addr_t send_dma_addr = ipr_cmd->dma_addr; 811 812 if (ioa_cfg->sis64) { 813 /* The default size is 256 bytes */ 814 send_dma_addr |= 0x1; 815 816 /* If the number of ioadls * size of ioadl > 128 bytes, 817 then use a 512 byte ioarcb */ 818 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) 819 send_dma_addr |= 0x4; 820 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 821 } else 822 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 823} 824 825/** 826 * ipr_do_req - Send driver initiated requests. 827 * @ipr_cmd: ipr command struct 828 * @done: done function 829 * @timeout_func: timeout function 830 * @timeout: timeout value 831 * 832 * This function sends the specified command to the adapter with the 833 * timeout given. The done function is invoked on command completion. 834 * 835 * Return value: 836 * none 837 **/ 838static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 839 void (*done) (struct ipr_cmnd *), 840 void (*timeout_func) (struct ipr_cmnd *), u32 timeout) 841{ 842 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 843 844 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 845 846 ipr_cmd->done = done; 847 848 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 849 ipr_cmd->timer.expires = jiffies + timeout; 850 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; 851 852 add_timer(&ipr_cmd->timer); 853 854 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 855 856 ipr_send_command(ipr_cmd); 857} 858 859/** 860 * ipr_internal_cmd_done - Op done function for an internally generated op. 861 * @ipr_cmd: ipr command struct 862 * 863 * This function is the op done function for an internally generated, 864 * blocking op. It simply wakes the sleeping thread. 865 * 866 * Return value: 867 * none 868 **/ 869static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 870{ 871 if (ipr_cmd->sibling) 872 ipr_cmd->sibling = NULL; 873 else 874 complete(&ipr_cmd->completion); 875} 876 877/** 878 * ipr_init_ioadl - initialize the ioadl for the correct SIS type 879 * @ipr_cmd: ipr command struct 880 * @dma_addr: dma address 881 * @len: transfer length 882 * @flags: ioadl flag value 883 * 884 * This function initializes an ioadl in the case where there is only a single 885 * descriptor. 886 * 887 * Return value: 888 * nothing 889 **/ 890static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, 891 u32 len, int flags) 892{ 893 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 894 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 895 896 ipr_cmd->dma_use_sg = 1; 897 898 if (ipr_cmd->ioa_cfg->sis64) { 899 ioadl64->flags = cpu_to_be32(flags); 900 ioadl64->data_len = cpu_to_be32(len); 901 ioadl64->address = cpu_to_be64(dma_addr); 902 903 ipr_cmd->ioarcb.ioadl_len = 904 cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); 905 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 906 } else { 907 ioadl->flags_and_data_len = cpu_to_be32(flags | len); 908 ioadl->address = cpu_to_be32(dma_addr); 909 910 if (flags == IPR_IOADL_FLAGS_READ_LAST) { 911 ipr_cmd->ioarcb.read_ioadl_len = 912 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 913 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); 914 } else { 915 ipr_cmd->ioarcb.ioadl_len = 916 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 917 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 918 } 919 } 920} 921 922/** 923 * ipr_send_blocking_cmd - Send command and sleep on its completion. 924 * @ipr_cmd: ipr command struct 925 * @timeout_func: function to invoke if command times out 926 * @timeout: timeout 927 * 928 * Return value: 929 * none 930 **/ 931static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 932 void (*timeout_func) (struct ipr_cmnd *ipr_cmd), 933 u32 timeout) 934{ 935 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 936 937 init_completion(&ipr_cmd->completion); 938 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 939 940 spin_unlock_irq(ioa_cfg->host->host_lock); 941 wait_for_completion(&ipr_cmd->completion); 942 spin_lock_irq(ioa_cfg->host->host_lock); 943} 944 945/** 946 * ipr_send_hcam - Send an HCAM to the adapter. 947 * @ioa_cfg: ioa config struct 948 * @type: HCAM type 949 * @hostrcb: hostrcb struct 950 * 951 * This function will send a Host Controlled Async command to the adapter. 952 * If HCAMs are currently not allowed to be issued to the adapter, it will 953 * place the hostrcb on the free queue. 954 * 955 * Return value: 956 * none 957 **/ 958static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 959 struct ipr_hostrcb *hostrcb) 960{ 961 struct ipr_cmnd *ipr_cmd; 962 struct ipr_ioarcb *ioarcb; 963 964 if (ioa_cfg->allow_cmds) { 965 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 966 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 967 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 968 969 ipr_cmd->u.hostrcb = hostrcb; 970 ioarcb = &ipr_cmd->ioarcb; 971 972 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 973 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 974 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 975 ioarcb->cmd_pkt.cdb[1] = type; 976 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 977 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 978 979 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, 980 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); 981 982 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 983 ipr_cmd->done = ipr_process_ccn; 984 else 985 ipr_cmd->done = ipr_process_error; 986 987 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 988 989 ipr_send_command(ipr_cmd); 990 } else { 991 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 992 } 993} 994 995/** 996 * ipr_update_ata_class - Update the ata class in the resource entry 997 * @res: resource entry struct 998 * @proto: cfgte device bus protocol value 999 * 1000 * Return value: 1001 * none 1002 **/ 1003static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) 1004{ 1005 switch(proto) { 1006 case IPR_PROTO_SATA: 1007 case IPR_PROTO_SAS_STP: 1008 res->ata_class = ATA_DEV_ATA; 1009 break; 1010 case IPR_PROTO_SATA_ATAPI: 1011 case IPR_PROTO_SAS_STP_ATAPI: 1012 res->ata_class = ATA_DEV_ATAPI; 1013 break; 1014 default: 1015 res->ata_class = ATA_DEV_UNKNOWN; 1016 break; 1017 }; 1018} 1019 1020/** 1021 * ipr_init_res_entry - Initialize a resource entry struct. 1022 * @res: resource entry struct 1023 * @cfgtew: config table entry wrapper struct 1024 * 1025 * Return value: 1026 * none 1027 **/ 1028static void ipr_init_res_entry(struct ipr_resource_entry *res, 1029 struct ipr_config_table_entry_wrapper *cfgtew) 1030{ 1031 int found = 0; 1032 unsigned int proto; 1033 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1034 struct ipr_resource_entry *gscsi_res = NULL; 1035 1036 res->needs_sync_complete = 0; 1037 res->in_erp = 0; 1038 res->add_to_ml = 0; 1039 res->del_from_ml = 0; 1040 res->resetting_device = 0; 1041 res->sdev = NULL; 1042 res->sata_port = NULL; 1043 1044 if (ioa_cfg->sis64) { 1045 proto = cfgtew->u.cfgte64->proto; 1046 res->res_flags = cfgtew->u.cfgte64->res_flags; 1047 res->qmodel = IPR_QUEUEING_MODEL64(res); 1048 res->type = cfgtew->u.cfgte64->res_type; 1049 1050 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1051 sizeof(res->res_path)); 1052 1053 res->bus = 0; 1054 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1055 sizeof(res->dev_lun.scsi_lun)); 1056 res->lun = scsilun_to_int(&res->dev_lun); 1057 1058 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1059 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { 1060 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { 1061 found = 1; 1062 res->target = gscsi_res->target; 1063 break; 1064 } 1065 } 1066 if (!found) { 1067 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1068 ioa_cfg->max_devs_supported); 1069 set_bit(res->target, ioa_cfg->target_ids); 1070 } 1071 } else if (res->type == IPR_RES_TYPE_IOAFP) { 1072 res->bus = IPR_IOAFP_VIRTUAL_BUS; 1073 res->target = 0; 1074 } else if (res->type == IPR_RES_TYPE_ARRAY) { 1075 res->bus = IPR_ARRAY_VIRTUAL_BUS; 1076 res->target = find_first_zero_bit(ioa_cfg->array_ids, 1077 ioa_cfg->max_devs_supported); 1078 set_bit(res->target, ioa_cfg->array_ids); 1079 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { 1080 res->bus = IPR_VSET_VIRTUAL_BUS; 1081 res->target = find_first_zero_bit(ioa_cfg->vset_ids, 1082 ioa_cfg->max_devs_supported); 1083 set_bit(res->target, ioa_cfg->vset_ids); 1084 } else { 1085 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1086 ioa_cfg->max_devs_supported); 1087 set_bit(res->target, ioa_cfg->target_ids); 1088 } 1089 } else { 1090 proto = cfgtew->u.cfgte->proto; 1091 res->qmodel = IPR_QUEUEING_MODEL(res); 1092 res->flags = cfgtew->u.cfgte->flags; 1093 if (res->flags & IPR_IS_IOA_RESOURCE) 1094 res->type = IPR_RES_TYPE_IOAFP; 1095 else 1096 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1097 1098 res->bus = cfgtew->u.cfgte->res_addr.bus; 1099 res->target = cfgtew->u.cfgte->res_addr.target; 1100 res->lun = cfgtew->u.cfgte->res_addr.lun; 1101 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn); 1102 } 1103 1104 ipr_update_ata_class(res, proto); 1105} 1106 1107/** 1108 * ipr_is_same_device - Determine if two devices are the same. 1109 * @res: resource entry struct 1110 * @cfgtew: config table entry wrapper struct 1111 * 1112 * Return value: 1113 * 1 if the devices are the same / 0 otherwise 1114 **/ 1115static int ipr_is_same_device(struct ipr_resource_entry *res, 1116 struct ipr_config_table_entry_wrapper *cfgtew) 1117{ 1118 if (res->ioa_cfg->sis64) { 1119 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, 1120 sizeof(cfgtew->u.cfgte64->dev_id)) && 1121 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1122 sizeof(cfgtew->u.cfgte64->lun))) { 1123 return 1; 1124 } 1125 } else { 1126 if (res->bus == cfgtew->u.cfgte->res_addr.bus && 1127 res->target == cfgtew->u.cfgte->res_addr.target && 1128 res->lun == cfgtew->u.cfgte->res_addr.lun) 1129 return 1; 1130 } 1131 1132 return 0; 1133} 1134 1135/** 1136 * ipr_format_res_path - Format the resource path for printing. 1137 * @res_path: resource path 1138 * @buf: buffer 1139 * 1140 * Return value: 1141 * pointer to buffer 1142 **/ 1143static char *ipr_format_res_path(u8 *res_path, char *buffer, int len) 1144{ 1145 int i; 1146 char *p = buffer; 1147 1148 *p = '\0'; 1149 p += snprintf(p, buffer + len - p, "%02X", res_path[0]); 1150 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++) 1151 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]); 1152 1153 return buffer; 1154} 1155 1156/** 1157 * ipr_update_res_entry - Update the resource entry. 1158 * @res: resource entry struct 1159 * @cfgtew: config table entry wrapper struct 1160 * 1161 * Return value: 1162 * none 1163 **/ 1164static void ipr_update_res_entry(struct ipr_resource_entry *res, 1165 struct ipr_config_table_entry_wrapper *cfgtew) 1166{ 1167 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1168 unsigned int proto; 1169 int new_path = 0; 1170 1171 if (res->ioa_cfg->sis64) { 1172 res->flags = cfgtew->u.cfgte64->flags; 1173 res->res_flags = cfgtew->u.cfgte64->res_flags; 1174 res->type = cfgtew->u.cfgte64->res_type; 1175 1176 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, 1177 sizeof(struct ipr_std_inq_data)); 1178 1179 res->qmodel = IPR_QUEUEING_MODEL64(res); 1180 proto = cfgtew->u.cfgte64->proto; 1181 res->res_handle = cfgtew->u.cfgte64->res_handle; 1182 res->dev_id = cfgtew->u.cfgte64->dev_id; 1183 1184 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1185 sizeof(res->dev_lun.scsi_lun)); 1186 1187 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, 1188 sizeof(res->res_path))) { 1189 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1190 sizeof(res->res_path)); 1191 new_path = 1; 1192 } 1193 1194 if (res->sdev && new_path) 1195 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", 1196 ipr_format_res_path(res->res_path, buffer, 1197 sizeof(buffer))); 1198 } else { 1199 res->flags = cfgtew->u.cfgte->flags; 1200 if (res->flags & IPR_IS_IOA_RESOURCE) 1201 res->type = IPR_RES_TYPE_IOAFP; 1202 else 1203 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1204 1205 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, 1206 sizeof(struct ipr_std_inq_data)); 1207 1208 res->qmodel = IPR_QUEUEING_MODEL(res); 1209 proto = cfgtew->u.cfgte->proto; 1210 res->res_handle = cfgtew->u.cfgte->res_handle; 1211 } 1212 1213 ipr_update_ata_class(res, proto); 1214} 1215 1216/** 1217 * ipr_clear_res_target - Clear the bit in the bit map representing the target 1218 * for the resource. 1219 * @res: resource entry struct 1220 * @cfgtew: config table entry wrapper struct 1221 * 1222 * Return value: 1223 * none 1224 **/ 1225static void ipr_clear_res_target(struct ipr_resource_entry *res) 1226{ 1227 struct ipr_resource_entry *gscsi_res = NULL; 1228 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1229 1230 if (!ioa_cfg->sis64) 1231 return; 1232 1233 if (res->bus == IPR_ARRAY_VIRTUAL_BUS) 1234 clear_bit(res->target, ioa_cfg->array_ids); 1235 else if (res->bus == IPR_VSET_VIRTUAL_BUS) 1236 clear_bit(res->target, ioa_cfg->vset_ids); 1237 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1238 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) 1239 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) 1240 return; 1241 clear_bit(res->target, ioa_cfg->target_ids); 1242 1243 } else if (res->bus == 0) 1244 clear_bit(res->target, ioa_cfg->target_ids); 1245} 1246 1247/** 1248 * ipr_handle_config_change - Handle a config change from the adapter 1249 * @ioa_cfg: ioa config struct 1250 * @hostrcb: hostrcb 1251 * 1252 * Return value: 1253 * none 1254 **/ 1255static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 1256 struct ipr_hostrcb *hostrcb) 1257{ 1258 struct ipr_resource_entry *res = NULL; 1259 struct ipr_config_table_entry_wrapper cfgtew; 1260 __be32 cc_res_handle; 1261 1262 u32 is_ndn = 1; 1263 1264 if (ioa_cfg->sis64) { 1265 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; 1266 cc_res_handle = cfgtew.u.cfgte64->res_handle; 1267 } else { 1268 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; 1269 cc_res_handle = cfgtew.u.cfgte->res_handle; 1270 } 1271 1272 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1273 if (res->res_handle == cc_res_handle) { 1274 is_ndn = 0; 1275 break; 1276 } 1277 } 1278 1279 if (is_ndn) { 1280 if (list_empty(&ioa_cfg->free_res_q)) { 1281 ipr_send_hcam(ioa_cfg, 1282 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 1283 hostrcb); 1284 return; 1285 } 1286 1287 res = list_entry(ioa_cfg->free_res_q.next, 1288 struct ipr_resource_entry, queue); 1289 1290 list_del(&res->queue); 1291 ipr_init_res_entry(res, &cfgtew); 1292 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 1293 } 1294 1295 ipr_update_res_entry(res, &cfgtew); 1296 1297 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 1298 if (res->sdev) { 1299 res->del_from_ml = 1; 1300 res->res_handle = IPR_INVALID_RES_HANDLE; 1301 if (ioa_cfg->allow_ml_add_del) 1302 schedule_work(&ioa_cfg->work_q); 1303 } else { 1304 ipr_clear_res_target(res); 1305 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 1306 } 1307 } else if (!res->sdev || res->del_from_ml) { 1308 res->add_to_ml = 1; 1309 if (ioa_cfg->allow_ml_add_del) 1310 schedule_work(&ioa_cfg->work_q); 1311 } 1312 1313 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1314} 1315 1316/** 1317 * ipr_process_ccn - Op done function for a CCN. 1318 * @ipr_cmd: ipr command struct 1319 * 1320 * This function is the op done function for a configuration 1321 * change notification host controlled async from the adapter. 1322 * 1323 * Return value: 1324 * none 1325 **/ 1326static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 1327{ 1328 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1329 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1330 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 1331 1332 list_del(&hostrcb->queue); 1333 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 1334 1335 if (ioasc) { 1336 if (ioasc != IPR_IOASC_IOA_WAS_RESET) 1337 dev_err(&ioa_cfg->pdev->dev, 1338 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1339 1340 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1341 } else { 1342 ipr_handle_config_change(ioa_cfg, hostrcb); 1343 } 1344} 1345 1346/** 1347 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 1348 * @i: index into buffer 1349 * @buf: string to modify 1350 * 1351 * This function will strip all trailing whitespace, pad the end 1352 * of the string with a single space, and NULL terminate the string. 1353 * 1354 * Return value: 1355 * new length of string 1356 **/ 1357static int strip_and_pad_whitespace(int i, char *buf) 1358{ 1359 while (i && buf[i] == ' ') 1360 i--; 1361 buf[i+1] = ' '; 1362 buf[i+2] = '\0'; 1363 return i + 2; 1364} 1365 1366/** 1367 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 1368 * @prefix: string to print at start of printk 1369 * @hostrcb: hostrcb pointer 1370 * @vpd: vendor/product id/sn struct 1371 * 1372 * Return value: 1373 * none 1374 **/ 1375static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1376 struct ipr_vpd *vpd) 1377{ 1378 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 1379 int i = 0; 1380 1381 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1382 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 1383 1384 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 1385 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 1386 1387 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1388 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1389 1390 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1391} 1392 1393/** 1394 * ipr_log_vpd - Log the passed VPD to the error log. 1395 * @vpd: vendor/product id/sn struct 1396 * 1397 * Return value: 1398 * none 1399 **/ 1400static void ipr_log_vpd(struct ipr_vpd *vpd) 1401{ 1402 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1403 + IPR_SERIAL_NUM_LEN]; 1404 1405 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1406 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1407 IPR_PROD_ID_LEN); 1408 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1409 ipr_err("Vendor/Product ID: %s\n", buffer); 1410 1411 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1412 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1413 ipr_err(" Serial Number: %s\n", buffer); 1414} 1415 1416/** 1417 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1418 * @prefix: string to print at start of printk 1419 * @hostrcb: hostrcb pointer 1420 * @vpd: vendor/product id/sn/wwn struct 1421 * 1422 * Return value: 1423 * none 1424 **/ 1425static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1426 struct ipr_ext_vpd *vpd) 1427{ 1428 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1429 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1430 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1431} 1432 1433/** 1434 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1435 * @vpd: vendor/product id/sn/wwn struct 1436 * 1437 * Return value: 1438 * none 1439 **/ 1440static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1441{ 1442 ipr_log_vpd(&vpd->vpd); 1443 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1444 be32_to_cpu(vpd->wwid[1])); 1445} 1446 1447/** 1448 * ipr_log_enhanced_cache_error - Log a cache error. 1449 * @ioa_cfg: ioa config struct 1450 * @hostrcb: hostrcb struct 1451 * 1452 * Return value: 1453 * none 1454 **/ 1455static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1456 struct ipr_hostrcb *hostrcb) 1457{ 1458 struct ipr_hostrcb_type_12_error *error; 1459 1460 if (ioa_cfg->sis64) 1461 error = &hostrcb->hcam.u.error64.u.type_12_error; 1462 else 1463 error = &hostrcb->hcam.u.error.u.type_12_error; 1464 1465 ipr_err("-----Current Configuration-----\n"); 1466 ipr_err("Cache Directory Card Information:\n"); 1467 ipr_log_ext_vpd(&error->ioa_vpd); 1468 ipr_err("Adapter Card Information:\n"); 1469 ipr_log_ext_vpd(&error->cfc_vpd); 1470 1471 ipr_err("-----Expected Configuration-----\n"); 1472 ipr_err("Cache Directory Card Information:\n"); 1473 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1474 ipr_err("Adapter Card Information:\n"); 1475 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1476 1477 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1478 be32_to_cpu(error->ioa_data[0]), 1479 be32_to_cpu(error->ioa_data[1]), 1480 be32_to_cpu(error->ioa_data[2])); 1481} 1482 1483/** 1484 * ipr_log_cache_error - Log a cache error. 1485 * @ioa_cfg: ioa config struct 1486 * @hostrcb: hostrcb struct 1487 * 1488 * Return value: 1489 * none 1490 **/ 1491static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1492 struct ipr_hostrcb *hostrcb) 1493{ 1494 struct ipr_hostrcb_type_02_error *error = 1495 &hostrcb->hcam.u.error.u.type_02_error; 1496 1497 ipr_err("-----Current Configuration-----\n"); 1498 ipr_err("Cache Directory Card Information:\n"); 1499 ipr_log_vpd(&error->ioa_vpd); 1500 ipr_err("Adapter Card Information:\n"); 1501 ipr_log_vpd(&error->cfc_vpd); 1502 1503 ipr_err("-----Expected Configuration-----\n"); 1504 ipr_err("Cache Directory Card Information:\n"); 1505 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1506 ipr_err("Adapter Card Information:\n"); 1507 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1508 1509 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1510 be32_to_cpu(error->ioa_data[0]), 1511 be32_to_cpu(error->ioa_data[1]), 1512 be32_to_cpu(error->ioa_data[2])); 1513} 1514 1515/** 1516 * ipr_log_enhanced_config_error - Log a configuration error. 1517 * @ioa_cfg: ioa config struct 1518 * @hostrcb: hostrcb struct 1519 * 1520 * Return value: 1521 * none 1522 **/ 1523static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1524 struct ipr_hostrcb *hostrcb) 1525{ 1526 int errors_logged, i; 1527 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1528 struct ipr_hostrcb_type_13_error *error; 1529 1530 error = &hostrcb->hcam.u.error.u.type_13_error; 1531 errors_logged = be32_to_cpu(error->errors_logged); 1532 1533 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1534 be32_to_cpu(error->errors_detected), errors_logged); 1535 1536 dev_entry = error->dev; 1537 1538 for (i = 0; i < errors_logged; i++, dev_entry++) { 1539 ipr_err_separator; 1540 1541 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1542 ipr_log_ext_vpd(&dev_entry->vpd); 1543 1544 ipr_err("-----New Device Information-----\n"); 1545 ipr_log_ext_vpd(&dev_entry->new_vpd); 1546 1547 ipr_err("Cache Directory Card Information:\n"); 1548 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1549 1550 ipr_err("Adapter Card Information:\n"); 1551 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1552 } 1553} 1554 1555/** 1556 * ipr_log_sis64_config_error - Log a device error. 1557 * @ioa_cfg: ioa config struct 1558 * @hostrcb: hostrcb struct 1559 * 1560 * Return value: 1561 * none 1562 **/ 1563static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, 1564 struct ipr_hostrcb *hostrcb) 1565{ 1566 int errors_logged, i; 1567 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; 1568 struct ipr_hostrcb_type_23_error *error; 1569 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1570 1571 error = &hostrcb->hcam.u.error64.u.type_23_error; 1572 errors_logged = be32_to_cpu(error->errors_logged); 1573 1574 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1575 be32_to_cpu(error->errors_detected), errors_logged); 1576 1577 dev_entry = error->dev; 1578 1579 for (i = 0; i < errors_logged; i++, dev_entry++) { 1580 ipr_err_separator; 1581 1582 ipr_err("Device %d : %s", i + 1, 1583 ipr_format_res_path(dev_entry->res_path, buffer, 1584 sizeof(buffer))); 1585 ipr_log_ext_vpd(&dev_entry->vpd); 1586 1587 ipr_err("-----New Device Information-----\n"); 1588 ipr_log_ext_vpd(&dev_entry->new_vpd); 1589 1590 ipr_err("Cache Directory Card Information:\n"); 1591 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1592 1593 ipr_err("Adapter Card Information:\n"); 1594 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1595 } 1596} 1597 1598/** 1599 * ipr_log_config_error - Log a configuration error. 1600 * @ioa_cfg: ioa config struct 1601 * @hostrcb: hostrcb struct 1602 * 1603 * Return value: 1604 * none 1605 **/ 1606static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1607 struct ipr_hostrcb *hostrcb) 1608{ 1609 int errors_logged, i; 1610 struct ipr_hostrcb_device_data_entry *dev_entry; 1611 struct ipr_hostrcb_type_03_error *error; 1612 1613 error = &hostrcb->hcam.u.error.u.type_03_error; 1614 errors_logged = be32_to_cpu(error->errors_logged); 1615 1616 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1617 be32_to_cpu(error->errors_detected), errors_logged); 1618 1619 dev_entry = error->dev; 1620 1621 for (i = 0; i < errors_logged; i++, dev_entry++) { 1622 ipr_err_separator; 1623 1624 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1625 ipr_log_vpd(&dev_entry->vpd); 1626 1627 ipr_err("-----New Device Information-----\n"); 1628 ipr_log_vpd(&dev_entry->new_vpd); 1629 1630 ipr_err("Cache Directory Card Information:\n"); 1631 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1632 1633 ipr_err("Adapter Card Information:\n"); 1634 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1635 1636 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1637 be32_to_cpu(dev_entry->ioa_data[0]), 1638 be32_to_cpu(dev_entry->ioa_data[1]), 1639 be32_to_cpu(dev_entry->ioa_data[2]), 1640 be32_to_cpu(dev_entry->ioa_data[3]), 1641 be32_to_cpu(dev_entry->ioa_data[4])); 1642 } 1643} 1644 1645/** 1646 * ipr_log_enhanced_array_error - Log an array configuration error. 1647 * @ioa_cfg: ioa config struct 1648 * @hostrcb: hostrcb struct 1649 * 1650 * Return value: 1651 * none 1652 **/ 1653static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1654 struct ipr_hostrcb *hostrcb) 1655{ 1656 int i, num_entries; 1657 struct ipr_hostrcb_type_14_error *error; 1658 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1659 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1660 1661 error = &hostrcb->hcam.u.error.u.type_14_error; 1662 1663 ipr_err_separator; 1664 1665 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1666 error->protection_level, 1667 ioa_cfg->host->host_no, 1668 error->last_func_vset_res_addr.bus, 1669 error->last_func_vset_res_addr.target, 1670 error->last_func_vset_res_addr.lun); 1671 1672 ipr_err_separator; 1673 1674 array_entry = error->array_member; 1675 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1676 ARRAY_SIZE(error->array_member)); 1677 1678 for (i = 0; i < num_entries; i++, array_entry++) { 1679 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1680 continue; 1681 1682 if (be32_to_cpu(error->exposed_mode_adn) == i) 1683 ipr_err("Exposed Array Member %d:\n", i); 1684 else 1685 ipr_err("Array Member %d:\n", i); 1686 1687 ipr_log_ext_vpd(&array_entry->vpd); 1688 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1689 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1690 "Expected Location"); 1691 1692 ipr_err_separator; 1693 } 1694} 1695 1696/** 1697 * ipr_log_array_error - Log an array configuration error. 1698 * @ioa_cfg: ioa config struct 1699 * @hostrcb: hostrcb struct 1700 * 1701 * Return value: 1702 * none 1703 **/ 1704static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1705 struct ipr_hostrcb *hostrcb) 1706{ 1707 int i; 1708 struct ipr_hostrcb_type_04_error *error; 1709 struct ipr_hostrcb_array_data_entry *array_entry; 1710 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1711 1712 error = &hostrcb->hcam.u.error.u.type_04_error; 1713 1714 ipr_err_separator; 1715 1716 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1717 error->protection_level, 1718 ioa_cfg->host->host_no, 1719 error->last_func_vset_res_addr.bus, 1720 error->last_func_vset_res_addr.target, 1721 error->last_func_vset_res_addr.lun); 1722 1723 ipr_err_separator; 1724 1725 array_entry = error->array_member; 1726 1727 for (i = 0; i < 18; i++) { 1728 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1729 continue; 1730 1731 if (be32_to_cpu(error->exposed_mode_adn) == i) 1732 ipr_err("Exposed Array Member %d:\n", i); 1733 else 1734 ipr_err("Array Member %d:\n", i); 1735 1736 ipr_log_vpd(&array_entry->vpd); 1737 1738 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1739 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1740 "Expected Location"); 1741 1742 ipr_err_separator; 1743 1744 if (i == 9) 1745 array_entry = error->array_member2; 1746 else 1747 array_entry++; 1748 } 1749} 1750 1751/** 1752 * ipr_log_hex_data - Log additional hex IOA error data. 1753 * @ioa_cfg: ioa config struct 1754 * @data: IOA error data 1755 * @len: data length 1756 * 1757 * Return value: 1758 * none 1759 **/ 1760static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) 1761{ 1762 int i; 1763 1764 if (len == 0) 1765 return; 1766 1767 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1768 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1769 1770 for (i = 0; i < len / 4; i += 4) { 1771 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1772 be32_to_cpu(data[i]), 1773 be32_to_cpu(data[i+1]), 1774 be32_to_cpu(data[i+2]), 1775 be32_to_cpu(data[i+3])); 1776 } 1777} 1778 1779/** 1780 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1781 * @ioa_cfg: ioa config struct 1782 * @hostrcb: hostrcb struct 1783 * 1784 * Return value: 1785 * none 1786 **/ 1787static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1788 struct ipr_hostrcb *hostrcb) 1789{ 1790 struct ipr_hostrcb_type_17_error *error; 1791 1792 if (ioa_cfg->sis64) 1793 error = &hostrcb->hcam.u.error64.u.type_17_error; 1794 else 1795 error = &hostrcb->hcam.u.error.u.type_17_error; 1796 1797 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1798 strim(error->failure_reason); 1799 1800 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1801 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1802 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1803 ipr_log_hex_data(ioa_cfg, error->data, 1804 be32_to_cpu(hostrcb->hcam.length) - 1805 (offsetof(struct ipr_hostrcb_error, u) + 1806 offsetof(struct ipr_hostrcb_type_17_error, data))); 1807} 1808 1809/** 1810 * ipr_log_dual_ioa_error - Log a dual adapter error. 1811 * @ioa_cfg: ioa config struct 1812 * @hostrcb: hostrcb struct 1813 * 1814 * Return value: 1815 * none 1816 **/ 1817static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1818 struct ipr_hostrcb *hostrcb) 1819{ 1820 struct ipr_hostrcb_type_07_error *error; 1821 1822 error = &hostrcb->hcam.u.error.u.type_07_error; 1823 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1824 strim(error->failure_reason); 1825 1826 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1827 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1828 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1829 ipr_log_hex_data(ioa_cfg, error->data, 1830 be32_to_cpu(hostrcb->hcam.length) - 1831 (offsetof(struct ipr_hostrcb_error, u) + 1832 offsetof(struct ipr_hostrcb_type_07_error, data))); 1833} 1834 1835static const struct { 1836 u8 active; 1837 char *desc; 1838} path_active_desc[] = { 1839 { IPR_PATH_NO_INFO, "Path" }, 1840 { IPR_PATH_ACTIVE, "Active path" }, 1841 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 1842}; 1843 1844static const struct { 1845 u8 state; 1846 char *desc; 1847} path_state_desc[] = { 1848 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 1849 { IPR_PATH_HEALTHY, "is healthy" }, 1850 { IPR_PATH_DEGRADED, "is degraded" }, 1851 { IPR_PATH_FAILED, "is failed" } 1852}; 1853 1854/** 1855 * ipr_log_fabric_path - Log a fabric path error 1856 * @hostrcb: hostrcb struct 1857 * @fabric: fabric descriptor 1858 * 1859 * Return value: 1860 * none 1861 **/ 1862static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 1863 struct ipr_hostrcb_fabric_desc *fabric) 1864{ 1865 int i, j; 1866 u8 path_state = fabric->path_state; 1867 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1868 u8 state = path_state & IPR_PATH_STATE_MASK; 1869 1870 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1871 if (path_active_desc[i].active != active) 1872 continue; 1873 1874 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1875 if (path_state_desc[j].state != state) 1876 continue; 1877 1878 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 1879 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 1880 path_active_desc[i].desc, path_state_desc[j].desc, 1881 fabric->ioa_port); 1882 } else if (fabric->cascaded_expander == 0xff) { 1883 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 1884 path_active_desc[i].desc, path_state_desc[j].desc, 1885 fabric->ioa_port, fabric->phy); 1886 } else if (fabric->phy == 0xff) { 1887 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 1888 path_active_desc[i].desc, path_state_desc[j].desc, 1889 fabric->ioa_port, fabric->cascaded_expander); 1890 } else { 1891 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 1892 path_active_desc[i].desc, path_state_desc[j].desc, 1893 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1894 } 1895 return; 1896 } 1897 } 1898 1899 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 1900 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 1901} 1902 1903/** 1904 * ipr_log64_fabric_path - Log a fabric path error 1905 * @hostrcb: hostrcb struct 1906 * @fabric: fabric descriptor 1907 * 1908 * Return value: 1909 * none 1910 **/ 1911static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, 1912 struct ipr_hostrcb64_fabric_desc *fabric) 1913{ 1914 int i, j; 1915 u8 path_state = fabric->path_state; 1916 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 1917 u8 state = path_state & IPR_PATH_STATE_MASK; 1918 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1919 1920 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 1921 if (path_active_desc[i].active != active) 1922 continue; 1923 1924 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 1925 if (path_state_desc[j].state != state) 1926 continue; 1927 1928 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", 1929 path_active_desc[i].desc, path_state_desc[j].desc, 1930 ipr_format_res_path(fabric->res_path, buffer, 1931 sizeof(buffer))); 1932 return; 1933 } 1934 } 1935 1936 ipr_err("Path state=%02X Resource Path=%s\n", path_state, 1937 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer))); 1938} 1939 1940static const struct { 1941 u8 type; 1942 char *desc; 1943} path_type_desc[] = { 1944 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 1945 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 1946 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 1947 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 1948}; 1949 1950static const struct { 1951 u8 status; 1952 char *desc; 1953} path_status_desc[] = { 1954 { IPR_PATH_CFG_NO_PROB, "Functional" }, 1955 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 1956 { IPR_PATH_CFG_FAILED, "Failed" }, 1957 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 1958 { IPR_PATH_NOT_DETECTED, "Missing" }, 1959 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 1960}; 1961 1962static const char *link_rate[] = { 1963 "unknown", 1964 "disabled", 1965 "phy reset problem", 1966 "spinup hold", 1967 "port selector", 1968 "unknown", 1969 "unknown", 1970 "unknown", 1971 "1.5Gbps", 1972 "3.0Gbps", 1973 "unknown", 1974 "unknown", 1975 "unknown", 1976 "unknown", 1977 "unknown", 1978 "unknown" 1979}; 1980 1981/** 1982 * ipr_log_path_elem - Log a fabric path element. 1983 * @hostrcb: hostrcb struct 1984 * @cfg: fabric path element struct 1985 * 1986 * Return value: 1987 * none 1988 **/ 1989static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 1990 struct ipr_hostrcb_config_element *cfg) 1991{ 1992 int i, j; 1993 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 1994 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 1995 1996 if (type == IPR_PATH_CFG_NOT_EXIST) 1997 return; 1998 1999 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2000 if (path_type_desc[i].type != type) 2001 continue; 2002 2003 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2004 if (path_status_desc[j].status != status) 2005 continue; 2006 2007 if (type == IPR_PATH_CFG_IOA_PORT) { 2008 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 2009 path_status_desc[j].desc, path_type_desc[i].desc, 2010 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2011 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2012 } else { 2013 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 2014 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 2015 path_status_desc[j].desc, path_type_desc[i].desc, 2016 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2017 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2018 } else if (cfg->cascaded_expander == 0xff) { 2019 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 2020 "WWN=%08X%08X\n", path_status_desc[j].desc, 2021 path_type_desc[i].desc, cfg->phy, 2022 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2023 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2024 } else if (cfg->phy == 0xff) { 2025 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 2026 "WWN=%08X%08X\n", path_status_desc[j].desc, 2027 path_type_desc[i].desc, cfg->cascaded_expander, 2028 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2029 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2030 } else { 2031 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 2032 "WWN=%08X%08X\n", path_status_desc[j].desc, 2033 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 2034 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2035 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2036 } 2037 } 2038 return; 2039 } 2040 } 2041 2042 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 2043 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 2044 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2045 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2046} 2047 2048/** 2049 * ipr_log64_path_elem - Log a fabric path element. 2050 * @hostrcb: hostrcb struct 2051 * @cfg: fabric path element struct 2052 * 2053 * Return value: 2054 * none 2055 **/ 2056static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, 2057 struct ipr_hostrcb64_config_element *cfg) 2058{ 2059 int i, j; 2060 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; 2061 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2062 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2063 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2064 2065 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) 2066 return; 2067 2068 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2069 if (path_type_desc[i].type != type) 2070 continue; 2071 2072 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2073 if (path_status_desc[j].status != status) 2074 continue; 2075 2076 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", 2077 path_status_desc[j].desc, path_type_desc[i].desc, 2078 ipr_format_res_path(cfg->res_path, buffer, 2079 sizeof(buffer)), 2080 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2081 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2082 return; 2083 } 2084 } 2085 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " 2086 "WWN=%08X%08X\n", cfg->type_status, 2087 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)), 2088 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2089 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2090} 2091 2092/** 2093 * ipr_log_fabric_error - Log a fabric error. 2094 * @ioa_cfg: ioa config struct 2095 * @hostrcb: hostrcb struct 2096 * 2097 * Return value: 2098 * none 2099 **/ 2100static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2101 struct ipr_hostrcb *hostrcb) 2102{ 2103 struct ipr_hostrcb_type_20_error *error; 2104 struct ipr_hostrcb_fabric_desc *fabric; 2105 struct ipr_hostrcb_config_element *cfg; 2106 int i, add_len; 2107 2108 error = &hostrcb->hcam.u.error.u.type_20_error; 2109 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2110 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2111 2112 add_len = be32_to_cpu(hostrcb->hcam.length) - 2113 (offsetof(struct ipr_hostrcb_error, u) + 2114 offsetof(struct ipr_hostrcb_type_20_error, desc)); 2115 2116 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2117 ipr_log_fabric_path(hostrcb, fabric); 2118 for_each_fabric_cfg(fabric, cfg) 2119 ipr_log_path_elem(hostrcb, cfg); 2120 2121 add_len -= be16_to_cpu(fabric->length); 2122 fabric = (struct ipr_hostrcb_fabric_desc *) 2123 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2124 } 2125 2126 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2127} 2128 2129/** 2130 * ipr_log_sis64_array_error - Log a sis64 array error. 2131 * @ioa_cfg: ioa config struct 2132 * @hostrcb: hostrcb struct 2133 * 2134 * Return value: 2135 * none 2136 **/ 2137static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, 2138 struct ipr_hostrcb *hostrcb) 2139{ 2140 int i, num_entries; 2141 struct ipr_hostrcb_type_24_error *error; 2142 struct ipr_hostrcb64_array_data_entry *array_entry; 2143 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2144 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 2145 2146 error = &hostrcb->hcam.u.error64.u.type_24_error; 2147 2148 ipr_err_separator; 2149 2150 ipr_err("RAID %s Array Configuration: %s\n", 2151 error->protection_level, 2152 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer))); 2153 2154 ipr_err_separator; 2155 2156 array_entry = error->array_member; 2157 num_entries = min_t(u32, error->num_entries, 2158 ARRAY_SIZE(error->array_member)); 2159 2160 for (i = 0; i < num_entries; i++, array_entry++) { 2161 2162 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 2163 continue; 2164 2165 if (error->exposed_mode_adn == i) 2166 ipr_err("Exposed Array Member %d:\n", i); 2167 else 2168 ipr_err("Array Member %d:\n", i); 2169 2170 ipr_err("Array Member %d:\n", i); 2171 ipr_log_ext_vpd(&array_entry->vpd); 2172 ipr_err("Current Location: %s\n", 2173 ipr_format_res_path(array_entry->res_path, buffer, 2174 sizeof(buffer))); 2175 ipr_err("Expected Location: %s\n", 2176 ipr_format_res_path(array_entry->expected_res_path, 2177 buffer, sizeof(buffer))); 2178 2179 ipr_err_separator; 2180 } 2181} 2182 2183/** 2184 * ipr_log_sis64_fabric_error - Log a sis64 fabric error. 2185 * @ioa_cfg: ioa config struct 2186 * @hostrcb: hostrcb struct 2187 * 2188 * Return value: 2189 * none 2190 **/ 2191static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2192 struct ipr_hostrcb *hostrcb) 2193{ 2194 struct ipr_hostrcb_type_30_error *error; 2195 struct ipr_hostrcb64_fabric_desc *fabric; 2196 struct ipr_hostrcb64_config_element *cfg; 2197 int i, add_len; 2198 2199 error = &hostrcb->hcam.u.error64.u.type_30_error; 2200 2201 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2202 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2203 2204 add_len = be32_to_cpu(hostrcb->hcam.length) - 2205 (offsetof(struct ipr_hostrcb64_error, u) + 2206 offsetof(struct ipr_hostrcb_type_30_error, desc)); 2207 2208 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2209 ipr_log64_fabric_path(hostrcb, fabric); 2210 for_each_fabric_cfg(fabric, cfg) 2211 ipr_log64_path_elem(hostrcb, cfg); 2212 2213 add_len -= be16_to_cpu(fabric->length); 2214 fabric = (struct ipr_hostrcb64_fabric_desc *) 2215 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2216 } 2217 2218 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); 2219} 2220 2221/** 2222 * ipr_log_generic_error - Log an adapter error. 2223 * @ioa_cfg: ioa config struct 2224 * @hostrcb: hostrcb struct 2225 * 2226 * Return value: 2227 * none 2228 **/ 2229static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 2230 struct ipr_hostrcb *hostrcb) 2231{ 2232 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 2233 be32_to_cpu(hostrcb->hcam.length)); 2234} 2235 2236/** 2237 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 2238 * @ioasc: IOASC 2239 * 2240 * This function will return the index of into the ipr_error_table 2241 * for the specified IOASC. If the IOASC is not in the table, 2242 * 0 will be returned, which points to the entry used for unknown errors. 2243 * 2244 * Return value: 2245 * index into the ipr_error_table 2246 **/ 2247static u32 ipr_get_error(u32 ioasc) 2248{ 2249 int i; 2250 2251 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 2252 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 2253 return i; 2254 2255 return 0; 2256} 2257 2258/** 2259 * ipr_handle_log_data - Log an adapter error. 2260 * @ioa_cfg: ioa config struct 2261 * @hostrcb: hostrcb struct 2262 * 2263 * This function logs an adapter error to the system. 2264 * 2265 * Return value: 2266 * none 2267 **/ 2268static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 2269 struct ipr_hostrcb *hostrcb) 2270{ 2271 u32 ioasc; 2272 int error_index; 2273 2274 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 2275 return; 2276 2277 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 2278 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 2279 2280 if (ioa_cfg->sis64) 2281 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2282 else 2283 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2284 2285 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || 2286 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { 2287 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 2288 scsi_report_bus_reset(ioa_cfg->host, 2289 hostrcb->hcam.u.error.fd_res_addr.bus); 2290 } 2291 2292 error_index = ipr_get_error(ioasc); 2293 2294 if (!ipr_error_table[error_index].log_hcam) 2295 return; 2296 2297 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 2298 2299 /* Set indication we have logged an error */ 2300 ioa_cfg->errors_logged++; 2301 2302 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 2303 return; 2304 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 2305 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 2306 2307 switch (hostrcb->hcam.overlay_id) { 2308 case IPR_HOST_RCB_OVERLAY_ID_2: 2309 ipr_log_cache_error(ioa_cfg, hostrcb); 2310 break; 2311 case IPR_HOST_RCB_OVERLAY_ID_3: 2312 ipr_log_config_error(ioa_cfg, hostrcb); 2313 break; 2314 case IPR_HOST_RCB_OVERLAY_ID_4: 2315 case IPR_HOST_RCB_OVERLAY_ID_6: 2316 ipr_log_array_error(ioa_cfg, hostrcb); 2317 break; 2318 case IPR_HOST_RCB_OVERLAY_ID_7: 2319 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 2320 break; 2321 case IPR_HOST_RCB_OVERLAY_ID_12: 2322 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 2323 break; 2324 case IPR_HOST_RCB_OVERLAY_ID_13: 2325 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 2326 break; 2327 case IPR_HOST_RCB_OVERLAY_ID_14: 2328 case IPR_HOST_RCB_OVERLAY_ID_16: 2329 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 2330 break; 2331 case IPR_HOST_RCB_OVERLAY_ID_17: 2332 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 2333 break; 2334 case IPR_HOST_RCB_OVERLAY_ID_20: 2335 ipr_log_fabric_error(ioa_cfg, hostrcb); 2336 break; 2337 case IPR_HOST_RCB_OVERLAY_ID_23: 2338 ipr_log_sis64_config_error(ioa_cfg, hostrcb); 2339 break; 2340 case IPR_HOST_RCB_OVERLAY_ID_24: 2341 case IPR_HOST_RCB_OVERLAY_ID_26: 2342 ipr_log_sis64_array_error(ioa_cfg, hostrcb); 2343 break; 2344 case IPR_HOST_RCB_OVERLAY_ID_30: 2345 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); 2346 break; 2347 case IPR_HOST_RCB_OVERLAY_ID_1: 2348 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 2349 default: 2350 ipr_log_generic_error(ioa_cfg, hostrcb); 2351 break; 2352 } 2353} 2354 2355/** 2356 * ipr_process_error - Op done function for an adapter error log. 2357 * @ipr_cmd: ipr command struct 2358 * 2359 * This function is the op done function for an error log host 2360 * controlled async from the adapter. It will log the error and 2361 * send the HCAM back to the adapter. 2362 * 2363 * Return value: 2364 * none 2365 **/ 2366static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 2367{ 2368 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2369 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 2370 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 2371 u32 fd_ioasc; 2372 2373 if (ioa_cfg->sis64) 2374 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2375 else 2376 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2377 2378 list_del(&hostrcb->queue); 2379 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 2380 2381 if (!ioasc) { 2382 ipr_handle_log_data(ioa_cfg, hostrcb); 2383 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 2384 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 2385 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { 2386 dev_err(&ioa_cfg->pdev->dev, 2387 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 2388 } 2389 2390 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 2391} 2392 2393/** 2394 * ipr_timeout - An internally generated op has timed out. 2395 * @ipr_cmd: ipr command struct 2396 * 2397 * This function blocks host requests and initiates an 2398 * adapter reset. 2399 * 2400 * Return value: 2401 * none 2402 **/ 2403static void ipr_timeout(struct ipr_cmnd *ipr_cmd) 2404{ 2405 unsigned long lock_flags = 0; 2406 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2407 2408 ENTER; 2409 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2410 2411 ioa_cfg->errors_logged++; 2412 dev_err(&ioa_cfg->pdev->dev, 2413 "Adapter being reset due to command timeout.\n"); 2414 2415 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2416 ioa_cfg->sdt_state = GET_DUMP; 2417 2418 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 2419 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2420 2421 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2422 LEAVE; 2423} 2424 2425/** 2426 * ipr_oper_timeout - Adapter timed out transitioning to operational 2427 * @ipr_cmd: ipr command struct 2428 * 2429 * This function blocks host requests and initiates an 2430 * adapter reset. 2431 * 2432 * Return value: 2433 * none 2434 **/ 2435static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) 2436{ 2437 unsigned long lock_flags = 0; 2438 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2439 2440 ENTER; 2441 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2442 2443 ioa_cfg->errors_logged++; 2444 dev_err(&ioa_cfg->pdev->dev, 2445 "Adapter timed out transitioning to operational.\n"); 2446 2447 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2448 ioa_cfg->sdt_state = GET_DUMP; 2449 2450 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 2451 if (ipr_fastfail) 2452 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 2453 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2454 } 2455 2456 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2457 LEAVE; 2458} 2459 2460/** 2461 * ipr_reset_reload - Reset/Reload the IOA 2462 * @ioa_cfg: ioa config struct 2463 * @shutdown_type: shutdown type 2464 * 2465 * This function resets the adapter and re-initializes it. 2466 * This function assumes that all new host commands have been stopped. 2467 * Return value: 2468 * SUCCESS / FAILED 2469 **/ 2470static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, 2471 enum ipr_shutdown_type shutdown_type) 2472{ 2473 if (!ioa_cfg->in_reset_reload) 2474 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 2475 2476 spin_unlock_irq(ioa_cfg->host->host_lock); 2477 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 2478 spin_lock_irq(ioa_cfg->host->host_lock); 2479 2480 /* If we got hit with a host reset while we were already resetting 2481 the adapter for some reason, and the reset failed. */ 2482 if (ioa_cfg->ioa_is_dead) { 2483 ipr_trace; 2484 return FAILED; 2485 } 2486 2487 return SUCCESS; 2488} 2489 2490/** 2491 * ipr_find_ses_entry - Find matching SES in SES table 2492 * @res: resource entry struct of SES 2493 * 2494 * Return value: 2495 * pointer to SES table entry / NULL on failure 2496 **/ 2497static const struct ipr_ses_table_entry * 2498ipr_find_ses_entry(struct ipr_resource_entry *res) 2499{ 2500 int i, j, matches; 2501 struct ipr_std_inq_vpids *vpids; 2502 const struct ipr_ses_table_entry *ste = ipr_ses_table; 2503 2504 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 2505 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 2506 if (ste->compare_product_id_byte[j] == 'X') { 2507 vpids = &res->std_inq_data.vpids; 2508 if (vpids->product_id[j] == ste->product_id[j]) 2509 matches++; 2510 else 2511 break; 2512 } else 2513 matches++; 2514 } 2515 2516 if (matches == IPR_PROD_ID_LEN) 2517 return ste; 2518 } 2519 2520 return NULL; 2521} 2522 2523/** 2524 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 2525 * @ioa_cfg: ioa config struct 2526 * @bus: SCSI bus 2527 * @bus_width: bus width 2528 * 2529 * Return value: 2530 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 2531 * For a 2-byte wide SCSI bus, the maximum transfer speed is 2532 * twice the maximum transfer rate (e.g. for a wide enabled bus, 2533 * max 160MHz = max 320MB/sec). 2534 **/ 2535static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 2536{ 2537 struct ipr_resource_entry *res; 2538 const struct ipr_ses_table_entry *ste; 2539 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 2540 2541 /* Loop through each config table entry in the config table buffer */ 2542 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2543 if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) 2544 continue; 2545 2546 if (bus != res->bus) 2547 continue; 2548 2549 if (!(ste = ipr_find_ses_entry(res))) 2550 continue; 2551 2552 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 2553 } 2554 2555 return max_xfer_rate; 2556} 2557 2558/** 2559 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 2560 * @ioa_cfg: ioa config struct 2561 * @max_delay: max delay in micro-seconds to wait 2562 * 2563 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 2564 * 2565 * Return value: 2566 * 0 on success / other on failure 2567 **/ 2568static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 2569{ 2570 volatile u32 pcii_reg; 2571 int delay = 1; 2572 2573 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 2574 while (delay < max_delay) { 2575 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 2576 2577 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 2578 return 0; 2579 2580 /* udelay cannot be used if delay is more than a few milliseconds */ 2581 if ((delay / 1000) > MAX_UDELAY_MS) 2582 mdelay(delay / 1000); 2583 else 2584 udelay(delay); 2585 2586 delay += delay; 2587 } 2588 return -EIO; 2589} 2590 2591/** 2592 * ipr_get_sis64_dump_data_section - Dump IOA memory 2593 * @ioa_cfg: ioa config struct 2594 * @start_addr: adapter address to dump 2595 * @dest: destination kernel buffer 2596 * @length_in_words: length to dump in 4 byte words 2597 * 2598 * Return value: 2599 * 0 on success 2600 **/ 2601static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2602 u32 start_addr, 2603 __be32 *dest, u32 length_in_words) 2604{ 2605 int i; 2606 2607 for (i = 0; i < length_in_words; i++) { 2608 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); 2609 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); 2610 dest++; 2611 } 2612 2613 return 0; 2614} 2615 2616/** 2617 * ipr_get_ldump_data_section - Dump IOA memory 2618 * @ioa_cfg: ioa config struct 2619 * @start_addr: adapter address to dump 2620 * @dest: destination kernel buffer 2621 * @length_in_words: length to dump in 4 byte words 2622 * 2623 * Return value: 2624 * 0 on success / -EIO on failure 2625 **/ 2626static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2627 u32 start_addr, 2628 __be32 *dest, u32 length_in_words) 2629{ 2630 volatile u32 temp_pcii_reg; 2631 int i, delay = 0; 2632 2633 if (ioa_cfg->sis64) 2634 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, 2635 dest, length_in_words); 2636 2637 /* Write IOA interrupt reg starting LDUMP state */ 2638 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 2639 ioa_cfg->regs.set_uproc_interrupt_reg32); 2640 2641 /* Wait for IO debug acknowledge */ 2642 if (ipr_wait_iodbg_ack(ioa_cfg, 2643 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 2644 dev_err(&ioa_cfg->pdev->dev, 2645 "IOA dump long data transfer timeout\n"); 2646 return -EIO; 2647 } 2648 2649 /* Signal LDUMP interlocked - clear IO debug ack */ 2650 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2651 ioa_cfg->regs.clr_interrupt_reg); 2652 2653 /* Write Mailbox with starting address */ 2654 writel(start_addr, ioa_cfg->ioa_mailbox); 2655 2656 /* Signal address valid - clear IOA Reset alert */ 2657 writel(IPR_UPROCI_RESET_ALERT, 2658 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2659 2660 for (i = 0; i < length_in_words; i++) { 2661 /* Wait for IO debug acknowledge */ 2662 if (ipr_wait_iodbg_ack(ioa_cfg, 2663 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2664 dev_err(&ioa_cfg->pdev->dev, 2665 "IOA dump short data transfer timeout\n"); 2666 return -EIO; 2667 } 2668 2669 /* Read data from mailbox and increment destination pointer */ 2670 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2671 dest++; 2672 2673 /* For all but the last word of data, signal data received */ 2674 if (i < (length_in_words - 1)) { 2675 /* Signal dump data received - Clear IO debug Ack */ 2676 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2677 ioa_cfg->regs.clr_interrupt_reg); 2678 } 2679 } 2680 2681 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2682 writel(IPR_UPROCI_RESET_ALERT, 2683 ioa_cfg->regs.set_uproc_interrupt_reg32); 2684 2685 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2686 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2687 2688 /* Signal dump data received - Clear IO debug Ack */ 2689 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2690 ioa_cfg->regs.clr_interrupt_reg); 2691 2692 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2693 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2694 temp_pcii_reg = 2695 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 2696 2697 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2698 return 0; 2699 2700 udelay(10); 2701 delay += 10; 2702 } 2703 2704 return 0; 2705} 2706 2707#ifdef CONFIG_SCSI_IPR_DUMP 2708/** 2709 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2710 * @ioa_cfg: ioa config struct 2711 * @pci_address: adapter address 2712 * @length: length of data to copy 2713 * 2714 * Copy data from PCI adapter to kernel buffer. 2715 * Note: length MUST be a 4 byte multiple 2716 * Return value: 2717 * 0 on success / other on failure 2718 **/ 2719static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2720 unsigned long pci_address, u32 length) 2721{ 2722 int bytes_copied = 0; 2723 int cur_len, rc, rem_len, rem_page_len, max_dump_size; 2724 __be32 *page; 2725 unsigned long lock_flags = 0; 2726 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2727 2728 if (ioa_cfg->sis64) 2729 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; 2730 else 2731 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; 2732 2733 while (bytes_copied < length && 2734 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) { 2735 if (ioa_dump->page_offset >= PAGE_SIZE || 2736 ioa_dump->page_offset == 0) { 2737 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2738 2739 if (!page) { 2740 ipr_trace; 2741 return bytes_copied; 2742 } 2743 2744 ioa_dump->page_offset = 0; 2745 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2746 ioa_dump->next_page_index++; 2747 } else 2748 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2749 2750 rem_len = length - bytes_copied; 2751 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2752 cur_len = min(rem_len, rem_page_len); 2753 2754 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2755 if (ioa_cfg->sdt_state == ABORT_DUMP) { 2756 rc = -EIO; 2757 } else { 2758 rc = ipr_get_ldump_data_section(ioa_cfg, 2759 pci_address + bytes_copied, 2760 &page[ioa_dump->page_offset / 4], 2761 (cur_len / sizeof(u32))); 2762 } 2763 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2764 2765 if (!rc) { 2766 ioa_dump->page_offset += cur_len; 2767 bytes_copied += cur_len; 2768 } else { 2769 ipr_trace; 2770 break; 2771 } 2772 schedule(); 2773 } 2774 2775 return bytes_copied; 2776} 2777 2778/** 2779 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 2780 * @hdr: dump entry header struct 2781 * 2782 * Return value: 2783 * nothing 2784 **/ 2785static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 2786{ 2787 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 2788 hdr->num_elems = 1; 2789 hdr->offset = sizeof(*hdr); 2790 hdr->status = IPR_DUMP_STATUS_SUCCESS; 2791} 2792 2793/** 2794 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 2795 * @ioa_cfg: ioa config struct 2796 * @driver_dump: driver dump struct 2797 * 2798 * Return value: 2799 * nothing 2800 **/ 2801static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 2802 struct ipr_driver_dump *driver_dump) 2803{ 2804 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 2805 2806 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 2807 driver_dump->ioa_type_entry.hdr.len = 2808 sizeof(struct ipr_dump_ioa_type_entry) - 2809 sizeof(struct ipr_dump_entry_header); 2810 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2811 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 2812 driver_dump->ioa_type_entry.type = ioa_cfg->type; 2813 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 2814 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 2815 ucode_vpd->minor_release[1]; 2816 driver_dump->hdr.num_entries++; 2817} 2818 2819/** 2820 * ipr_dump_version_data - Fill in the driver version in the dump. 2821 * @ioa_cfg: ioa config struct 2822 * @driver_dump: driver dump struct 2823 * 2824 * Return value: 2825 * nothing 2826 **/ 2827static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 2828 struct ipr_driver_dump *driver_dump) 2829{ 2830 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 2831 driver_dump->version_entry.hdr.len = 2832 sizeof(struct ipr_dump_version_entry) - 2833 sizeof(struct ipr_dump_entry_header); 2834 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2835 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 2836 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 2837 driver_dump->hdr.num_entries++; 2838} 2839 2840/** 2841 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 2842 * @ioa_cfg: ioa config struct 2843 * @driver_dump: driver dump struct 2844 * 2845 * Return value: 2846 * nothing 2847 **/ 2848static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 2849 struct ipr_driver_dump *driver_dump) 2850{ 2851 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 2852 driver_dump->trace_entry.hdr.len = 2853 sizeof(struct ipr_dump_trace_entry) - 2854 sizeof(struct ipr_dump_entry_header); 2855 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2856 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 2857 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 2858 driver_dump->hdr.num_entries++; 2859} 2860 2861/** 2862 * ipr_dump_location_data - Fill in the IOA location in the dump. 2863 * @ioa_cfg: ioa config struct 2864 * @driver_dump: driver dump struct 2865 * 2866 * Return value: 2867 * nothing 2868 **/ 2869static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 2870 struct ipr_driver_dump *driver_dump) 2871{ 2872 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 2873 driver_dump->location_entry.hdr.len = 2874 sizeof(struct ipr_dump_location_entry) - 2875 sizeof(struct ipr_dump_entry_header); 2876 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 2877 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 2878 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 2879 driver_dump->hdr.num_entries++; 2880} 2881 2882/** 2883 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 2884 * @ioa_cfg: ioa config struct 2885 * @dump: dump struct 2886 * 2887 * Return value: 2888 * nothing 2889 **/ 2890static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 2891{ 2892 unsigned long start_addr, sdt_word; 2893 unsigned long lock_flags = 0; 2894 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 2895 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 2896 u32 num_entries, max_num_entries, start_off, end_off; 2897 u32 max_dump_size, bytes_to_copy, bytes_copied, rc; 2898 struct ipr_sdt *sdt; 2899 int valid = 1; 2900 int i; 2901 2902 ENTER; 2903 2904 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2905 2906 if (ioa_cfg->sdt_state != READ_DUMP) { 2907 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2908 return; 2909 } 2910 2911 if (ioa_cfg->sis64) { 2912 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2913 ssleep(IPR_DUMP_DELAY_SECONDS); 2914 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2915 } 2916 2917 start_addr = readl(ioa_cfg->ioa_mailbox); 2918 2919 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { 2920 dev_err(&ioa_cfg->pdev->dev, 2921 "Invalid dump table format: %lx\n", start_addr); 2922 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2923 return; 2924 } 2925 2926 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 2927 2928 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 2929 2930 /* Initialize the overall dump header */ 2931 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 2932 driver_dump->hdr.num_entries = 1; 2933 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 2934 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 2935 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 2936 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 2937 2938 ipr_dump_version_data(ioa_cfg, driver_dump); 2939 ipr_dump_location_data(ioa_cfg, driver_dump); 2940 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 2941 ipr_dump_trace_data(ioa_cfg, driver_dump); 2942 2943 /* Update dump_header */ 2944 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 2945 2946 /* IOA Dump entry */ 2947 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 2948 ioa_dump->hdr.len = 0; 2949 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 2950 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 2951 2952 /* First entries in sdt are actually a list of dump addresses and 2953 lengths to gather the real dump data. sdt represents the pointer 2954 to the ioa generated dump table. Dump data will be extracted based 2955 on entries in this table */ 2956 sdt = &ioa_dump->sdt; 2957 2958 if (ioa_cfg->sis64) { 2959 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES; 2960 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; 2961 } else { 2962 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES; 2963 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; 2964 } 2965 2966 bytes_to_copy = offsetof(struct ipr_sdt, entry) + 2967 (max_num_entries * sizeof(struct ipr_sdt_entry)); 2968 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 2969 bytes_to_copy / sizeof(__be32)); 2970 2971 /* Smart Dump table is ready to use and the first entry is valid */ 2972 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 2973 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 2974 dev_err(&ioa_cfg->pdev->dev, 2975 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 2976 rc, be32_to_cpu(sdt->hdr.state)); 2977 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 2978 ioa_cfg->sdt_state = DUMP_OBTAINED; 2979 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2980 return; 2981 } 2982 2983 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 2984 2985 if (num_entries > max_num_entries) 2986 num_entries = max_num_entries; 2987 2988 /* Update dump length to the actual data to be copied */ 2989 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header); 2990 if (ioa_cfg->sis64) 2991 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry); 2992 else 2993 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry); 2994 2995 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2996 2997 for (i = 0; i < num_entries; i++) { 2998 if (ioa_dump->hdr.len > max_dump_size) { 2999 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 3000 break; 3001 } 3002 3003 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 3004 sdt_word = be32_to_cpu(sdt->entry[i].start_token); 3005 if (ioa_cfg->sis64) 3006 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); 3007 else { 3008 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 3009 end_off = be32_to_cpu(sdt->entry[i].end_token); 3010 3011 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) 3012 bytes_to_copy = end_off - start_off; 3013 else 3014 valid = 0; 3015 } 3016 if (valid) { 3017 if (bytes_to_copy > max_dump_size) { 3018 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 3019 continue; 3020 } 3021 3022 /* Copy data from adapter to driver buffers */ 3023 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 3024 bytes_to_copy); 3025 3026 ioa_dump->hdr.len += bytes_copied; 3027 3028 if (bytes_copied != bytes_to_copy) { 3029 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 3030 break; 3031 } 3032 } 3033 } 3034 } 3035 3036 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 3037 3038 /* Update dump_header */ 3039 driver_dump->hdr.len += ioa_dump->hdr.len; 3040 wmb(); 3041 ioa_cfg->sdt_state = DUMP_OBTAINED; 3042 LEAVE; 3043} 3044 3045#else 3046#define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) 3047#endif 3048 3049/** 3050 * ipr_release_dump - Free adapter dump memory 3051 * @kref: kref struct 3052 * 3053 * Return value: 3054 * nothing 3055 **/ 3056static void ipr_release_dump(struct kref *kref) 3057{ 3058 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); 3059 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 3060 unsigned long lock_flags = 0; 3061 int i; 3062 3063 ENTER; 3064 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3065 ioa_cfg->dump = NULL; 3066 ioa_cfg->sdt_state = INACTIVE; 3067 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3068 3069 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 3070 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 3071 3072 vfree(dump->ioa_dump.ioa_data); 3073 kfree(dump); 3074 LEAVE; 3075} 3076 3077/** 3078 * ipr_worker_thread - Worker thread 3079 * @work: ioa config struct 3080 * 3081 * Called at task level from a work thread. This function takes care 3082 * of adding and removing device from the mid-layer as configuration 3083 * changes are detected by the adapter. 3084 * 3085 * Return value: 3086 * nothing 3087 **/ 3088static void ipr_worker_thread(struct work_struct *work) 3089{ 3090 unsigned long lock_flags; 3091 struct ipr_resource_entry *res; 3092 struct scsi_device *sdev; 3093 struct ipr_dump *dump; 3094 struct ipr_ioa_cfg *ioa_cfg = 3095 container_of(work, struct ipr_ioa_cfg, work_q); 3096 u8 bus, target, lun; 3097 int did_work; 3098 3099 ENTER; 3100 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3101 3102 if (ioa_cfg->sdt_state == READ_DUMP) { 3103 dump = ioa_cfg->dump; 3104 if (!dump) { 3105 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3106 return; 3107 } 3108 kref_get(&dump->kref); 3109 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3110 ipr_get_ioa_dump(ioa_cfg, dump); 3111 kref_put(&dump->kref, ipr_release_dump); 3112 3113 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3114 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout) 3115 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3116 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3117 return; 3118 } 3119 3120restart: 3121 do { 3122 did_work = 0; 3123 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { 3124 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3125 return; 3126 } 3127 3128 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3129 if (res->del_from_ml && res->sdev) { 3130 did_work = 1; 3131 sdev = res->sdev; 3132 if (!scsi_device_get(sdev)) { 3133 if (!res->add_to_ml) 3134 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3135 else 3136 res->del_from_ml = 0; 3137 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3138 scsi_remove_device(sdev); 3139 scsi_device_put(sdev); 3140 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3141 } 3142 break; 3143 } 3144 } 3145 } while(did_work); 3146 3147 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3148 if (res->add_to_ml) { 3149 bus = res->bus; 3150 target = res->target; 3151 lun = res->lun; 3152 res->add_to_ml = 0; 3153 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3154 scsi_add_device(ioa_cfg->host, bus, target, lun); 3155 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3156 goto restart; 3157 } 3158 } 3159 3160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3161 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3162 LEAVE; 3163} 3164 3165#ifdef CONFIG_SCSI_IPR_TRACE 3166/** 3167 * ipr_read_trace - Dump the adapter trace 3168 * @filp: open sysfs file 3169 * @kobj: kobject struct 3170 * @bin_attr: bin_attribute struct 3171 * @buf: buffer 3172 * @off: offset 3173 * @count: buffer size 3174 * 3175 * Return value: 3176 * number of bytes printed to buffer 3177 **/ 3178static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, 3179 struct bin_attribute *bin_attr, 3180 char *buf, loff_t off, size_t count) 3181{ 3182 struct device *dev = container_of(kobj, struct device, kobj); 3183 struct Scsi_Host *shost = class_to_shost(dev); 3184 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3185 unsigned long lock_flags = 0; 3186 ssize_t ret; 3187 3188 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3189 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3190 IPR_TRACE_SIZE); 3191 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3192 3193 return ret; 3194} 3195 3196static struct bin_attribute ipr_trace_attr = { 3197 .attr = { 3198 .name = "trace", 3199 .mode = S_IRUGO, 3200 }, 3201 .size = 0, 3202 .read = ipr_read_trace, 3203}; 3204#endif 3205 3206/** 3207 * ipr_show_fw_version - Show the firmware version 3208 * @dev: class device struct 3209 * @buf: buffer 3210 * 3211 * Return value: 3212 * number of bytes printed to buffer 3213 **/ 3214static ssize_t ipr_show_fw_version(struct device *dev, 3215 struct device_attribute *attr, char *buf) 3216{ 3217 struct Scsi_Host *shost = class_to_shost(dev); 3218 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3219 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3220 unsigned long lock_flags = 0; 3221 int len; 3222 3223 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3224 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3225 ucode_vpd->major_release, ucode_vpd->card_type, 3226 ucode_vpd->minor_release[0], 3227 ucode_vpd->minor_release[1]); 3228 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3229 return len; 3230} 3231 3232static struct device_attribute ipr_fw_version_attr = { 3233 .attr = { 3234 .name = "fw_version", 3235 .mode = S_IRUGO, 3236 }, 3237 .show = ipr_show_fw_version, 3238}; 3239 3240/** 3241 * ipr_show_log_level - Show the adapter's error logging level 3242 * @dev: class device struct 3243 * @buf: buffer 3244 * 3245 * Return value: 3246 * number of bytes printed to buffer 3247 **/ 3248static ssize_t ipr_show_log_level(struct device *dev, 3249 struct device_attribute *attr, char *buf) 3250{ 3251 struct Scsi_Host *shost = class_to_shost(dev); 3252 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3253 unsigned long lock_flags = 0; 3254 int len; 3255 3256 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3257 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3258 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3259 return len; 3260} 3261 3262/** 3263 * ipr_store_log_level - Change the adapter's error logging level 3264 * @dev: class device struct 3265 * @buf: buffer 3266 * 3267 * Return value: 3268 * number of bytes printed to buffer 3269 **/ 3270static ssize_t ipr_store_log_level(struct device *dev, 3271 struct device_attribute *attr, 3272 const char *buf, size_t count) 3273{ 3274 struct Scsi_Host *shost = class_to_shost(dev); 3275 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3276 unsigned long lock_flags = 0; 3277 3278 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3279 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3281 return strlen(buf); 3282} 3283 3284static struct device_attribute ipr_log_level_attr = { 3285 .attr = { 3286 .name = "log_level", 3287 .mode = S_IRUGO | S_IWUSR, 3288 }, 3289 .show = ipr_show_log_level, 3290 .store = ipr_store_log_level 3291}; 3292 3293/** 3294 * ipr_store_diagnostics - IOA Diagnostics interface 3295 * @dev: device struct 3296 * @buf: buffer 3297 * @count: buffer size 3298 * 3299 * This function will reset the adapter and wait a reasonable 3300 * amount of time for any errors that the adapter might log. 3301 * 3302 * Return value: 3303 * count on success / other on failure 3304 **/ 3305static ssize_t ipr_store_diagnostics(struct device *dev, 3306 struct device_attribute *attr, 3307 const char *buf, size_t count) 3308{ 3309 struct Scsi_Host *shost = class_to_shost(dev); 3310 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3311 unsigned long lock_flags = 0; 3312 int rc = count; 3313 3314 if (!capable(CAP_SYS_ADMIN)) 3315 return -EACCES; 3316 3317 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3318 while(ioa_cfg->in_reset_reload) { 3319 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3320 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3321 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3322 } 3323 3324 ioa_cfg->errors_logged = 0; 3325 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3326 3327 if (ioa_cfg->in_reset_reload) { 3328 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3329 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3330 3331 /* Wait for a second for any errors to be logged */ 3332 msleep(1000); 3333 } else { 3334 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3335 return -EIO; 3336 } 3337 3338 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3339 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3340 rc = -EIO; 3341 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3342 3343 return rc; 3344} 3345 3346static struct device_attribute ipr_diagnostics_attr = { 3347 .attr = { 3348 .name = "run_diagnostics", 3349 .mode = S_IWUSR, 3350 }, 3351 .store = ipr_store_diagnostics 3352}; 3353 3354/** 3355 * ipr_show_adapter_state - Show the adapter's state 3356 * @class_dev: device struct 3357 * @buf: buffer 3358 * 3359 * Return value: 3360 * number of bytes printed to buffer 3361 **/ 3362static ssize_t ipr_show_adapter_state(struct device *dev, 3363 struct device_attribute *attr, char *buf) 3364{ 3365 struct Scsi_Host *shost = class_to_shost(dev); 3366 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3367 unsigned long lock_flags = 0; 3368 int len; 3369 3370 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3371 if (ioa_cfg->ioa_is_dead) 3372 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3373 else 3374 len = snprintf(buf, PAGE_SIZE, "online\n"); 3375 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3376 return len; 3377} 3378 3379/** 3380 * ipr_store_adapter_state - Change adapter state 3381 * @dev: device struct 3382 * @buf: buffer 3383 * @count: buffer size 3384 * 3385 * This function will change the adapter's state. 3386 * 3387 * Return value: 3388 * count on success / other on failure 3389 **/ 3390static ssize_t ipr_store_adapter_state(struct device *dev, 3391 struct device_attribute *attr, 3392 const char *buf, size_t count) 3393{ 3394 struct Scsi_Host *shost = class_to_shost(dev); 3395 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3396 unsigned long lock_flags; 3397 int result = count; 3398 3399 if (!capable(CAP_SYS_ADMIN)) 3400 return -EACCES; 3401 3402 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3403 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { 3404 ioa_cfg->ioa_is_dead = 0; 3405 ioa_cfg->reset_retries = 0; 3406 ioa_cfg->in_ioa_bringdown = 0; 3407 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3408 } 3409 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3410 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3411 3412 return result; 3413} 3414 3415static struct device_attribute ipr_ioa_state_attr = { 3416 .attr = { 3417 .name = "online_state", 3418 .mode = S_IRUGO | S_IWUSR, 3419 }, 3420 .show = ipr_show_adapter_state, 3421 .store = ipr_store_adapter_state 3422}; 3423 3424/** 3425 * ipr_store_reset_adapter - Reset the adapter 3426 * @dev: device struct 3427 * @buf: buffer 3428 * @count: buffer size 3429 * 3430 * This function will reset the adapter. 3431 * 3432 * Return value: 3433 * count on success / other on failure 3434 **/ 3435static ssize_t ipr_store_reset_adapter(struct device *dev, 3436 struct device_attribute *attr, 3437 const char *buf, size_t count) 3438{ 3439 struct Scsi_Host *shost = class_to_shost(dev); 3440 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3441 unsigned long lock_flags; 3442 int result = count; 3443 3444 if (!capable(CAP_SYS_ADMIN)) 3445 return -EACCES; 3446 3447 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3448 if (!ioa_cfg->in_reset_reload) 3449 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3450 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3451 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3452 3453 return result; 3454} 3455 3456static struct device_attribute ipr_ioa_reset_attr = { 3457 .attr = { 3458 .name = "reset_host", 3459 .mode = S_IWUSR, 3460 }, 3461 .store = ipr_store_reset_adapter 3462}; 3463 3464/** 3465 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3466 * @buf_len: buffer length 3467 * 3468 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3469 * list to use for microcode download 3470 * 3471 * Return value: 3472 * pointer to sglist / NULL on failure 3473 **/ 3474static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3475{ 3476 int sg_size, order, bsize_elem, num_elem, i, j; 3477 struct ipr_sglist *sglist; 3478 struct scatterlist *scatterlist; 3479 struct page *page; 3480 3481 /* Get the minimum size per scatter/gather element */ 3482 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3483 3484 /* Get the actual size per element */ 3485 order = get_order(sg_size); 3486 3487 /* Determine the actual number of bytes per element */ 3488 bsize_elem = PAGE_SIZE * (1 << order); 3489 3490 /* Determine the actual number of sg entries needed */ 3491 if (buf_len % bsize_elem) 3492 num_elem = (buf_len / bsize_elem) + 1; 3493 else 3494 num_elem = buf_len / bsize_elem; 3495 3496 /* Allocate a scatter/gather list for the DMA */ 3497 sglist = kzalloc(sizeof(struct ipr_sglist) + 3498 (sizeof(struct scatterlist) * (num_elem - 1)), 3499 GFP_KERNEL); 3500 3501 if (sglist == NULL) { 3502 ipr_trace; 3503 return NULL; 3504 } 3505 3506 scatterlist = sglist->scatterlist; 3507 sg_init_table(scatterlist, num_elem); 3508 3509 sglist->order = order; 3510 sglist->num_sg = num_elem; 3511 3512 /* Allocate a bunch of sg elements */ 3513 for (i = 0; i < num_elem; i++) { 3514 page = alloc_pages(GFP_KERNEL, order); 3515 if (!page) { 3516 ipr_trace; 3517 3518 /* Free up what we already allocated */ 3519 for (j = i - 1; j >= 0; j--) 3520 __free_pages(sg_page(&scatterlist[j]), order); 3521 kfree(sglist); 3522 return NULL; 3523 } 3524 3525 sg_set_page(&scatterlist[i], page, 0, 0); 3526 } 3527 3528 return sglist; 3529} 3530 3531/** 3532 * ipr_free_ucode_buffer - Frees a microcode download buffer 3533 * @p_dnld: scatter/gather list pointer 3534 * 3535 * Free a DMA'able ucode download buffer previously allocated with 3536 * ipr_alloc_ucode_buffer 3537 * 3538 * Return value: 3539 * nothing 3540 **/ 3541static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3542{ 3543 int i; 3544 3545 for (i = 0; i < sglist->num_sg; i++) 3546 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); 3547 3548 kfree(sglist); 3549} 3550 3551/** 3552 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3553 * @sglist: scatter/gather list pointer 3554 * @buffer: buffer pointer 3555 * @len: buffer length 3556 * 3557 * Copy a microcode image from a user buffer into a buffer allocated by 3558 * ipr_alloc_ucode_buffer 3559 * 3560 * Return value: 3561 * 0 on success / other on failure 3562 **/ 3563static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3564 u8 *buffer, u32 len) 3565{ 3566 int bsize_elem, i, result = 0; 3567 struct scatterlist *scatterlist; 3568 void *kaddr; 3569 3570 /* Determine the actual number of bytes per element */ 3571 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3572 3573 scatterlist = sglist->scatterlist; 3574 3575 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { 3576 struct page *page = sg_page(&scatterlist[i]); 3577 3578 kaddr = kmap(page); 3579 memcpy(kaddr, buffer, bsize_elem); 3580 kunmap(page); 3581 3582 scatterlist[i].length = bsize_elem; 3583 3584 if (result != 0) { 3585 ipr_trace; 3586 return result; 3587 } 3588 } 3589 3590 if (len % bsize_elem) { 3591 struct page *page = sg_page(&scatterlist[i]); 3592 3593 kaddr = kmap(page); 3594 memcpy(kaddr, buffer, len % bsize_elem); 3595 kunmap(page); 3596 3597 scatterlist[i].length = len % bsize_elem; 3598 } 3599 3600 sglist->buffer_len = len; 3601 return result; 3602} 3603 3604/** 3605 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3606 * @ipr_cmd: ipr command struct 3607 * @sglist: scatter/gather list 3608 * 3609 * Builds a microcode download IOA data list (IOADL). 3610 * 3611 **/ 3612static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3613 struct ipr_sglist *sglist) 3614{ 3615 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3616 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3617 struct scatterlist *scatterlist = sglist->scatterlist; 3618 int i; 3619 3620 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3621 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3622 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3623 3624 ioarcb->ioadl_len = 3625 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3626 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3627 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3628 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); 3629 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); 3630 } 3631 3632 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3633} 3634 3635/** 3636 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3637 * @ipr_cmd: ipr command struct 3638 * @sglist: scatter/gather list 3639 * 3640 * Builds a microcode download IOA data list (IOADL). 3641 * 3642 **/ 3643static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3644 struct ipr_sglist *sglist) 3645{ 3646 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3647 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3648 struct scatterlist *scatterlist = sglist->scatterlist; 3649 int i; 3650 3651 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3652 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3653 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3654 3655 ioarcb->ioadl_len = 3656 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3657 3658 for (i = 0; i < ipr_cmd->dma_use_sg; i++) { 3659 ioadl[i].flags_and_data_len = 3660 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); 3661 ioadl[i].address = 3662 cpu_to_be32(sg_dma_address(&scatterlist[i])); 3663 } 3664 3665 ioadl[i-1].flags_and_data_len |= 3666 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3667} 3668 3669/** 3670 * ipr_update_ioa_ucode - Update IOA's microcode 3671 * @ioa_cfg: ioa config struct 3672 * @sglist: scatter/gather list 3673 * 3674 * Initiate an adapter reset to update the IOA's microcode 3675 * 3676 * Return value: 3677 * 0 on success / -EIO on failure 3678 **/ 3679static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 3680 struct ipr_sglist *sglist) 3681{ 3682 unsigned long lock_flags; 3683 3684 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3685 while(ioa_cfg->in_reset_reload) { 3686 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3687 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3688 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3689 } 3690 3691 if (ioa_cfg->ucode_sglist) { 3692 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3693 dev_err(&ioa_cfg->pdev->dev, 3694 "Microcode download already in progress\n"); 3695 return -EIO; 3696 } 3697 3698 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, 3699 sglist->num_sg, DMA_TO_DEVICE); 3700 3701 if (!sglist->num_dma_sg) { 3702 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3703 dev_err(&ioa_cfg->pdev->dev, 3704 "Failed to map microcode download buffer!\n"); 3705 return -EIO; 3706 } 3707 3708 ioa_cfg->ucode_sglist = sglist; 3709 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3710 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3711 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3712 3713 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3714 ioa_cfg->ucode_sglist = NULL; 3715 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3716 return 0; 3717} 3718 3719/** 3720 * ipr_store_update_fw - Update the firmware on the adapter 3721 * @class_dev: device struct 3722 * @buf: buffer 3723 * @count: buffer size 3724 * 3725 * This function will update the firmware on the adapter. 3726 * 3727 * Return value: 3728 * count on success / other on failure 3729 **/ 3730static ssize_t ipr_store_update_fw(struct device *dev, 3731 struct device_attribute *attr, 3732 const char *buf, size_t count) 3733{ 3734 struct Scsi_Host *shost = class_to_shost(dev); 3735 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3736 struct ipr_ucode_image_header *image_hdr; 3737 const struct firmware *fw_entry; 3738 struct ipr_sglist *sglist; 3739 char fname[100]; 3740 char *src; 3741 int len, result, dnld_size; 3742 3743 if (!capable(CAP_SYS_ADMIN)) 3744 return -EACCES; 3745 3746 len = snprintf(fname, 99, "%s", buf); 3747 fname[len-1] = '\0'; 3748 3749 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 3750 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 3751 return -EIO; 3752 } 3753 3754 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 3755 3756 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 3757 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 3758 sglist = ipr_alloc_ucode_buffer(dnld_size); 3759 3760 if (!sglist) { 3761 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 3762 release_firmware(fw_entry); 3763 return -ENOMEM; 3764 } 3765 3766 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 3767 3768 if (result) { 3769 dev_err(&ioa_cfg->pdev->dev, 3770 "Microcode buffer copy to DMA buffer failed\n"); 3771 goto out; 3772 } 3773 3774 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n"); 3775 3776 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 3777 3778 if (!result) 3779 result = count; 3780out: 3781 ipr_free_ucode_buffer(sglist); 3782 release_firmware(fw_entry); 3783 return result; 3784} 3785 3786static struct device_attribute ipr_update_fw_attr = { 3787 .attr = { 3788 .name = "update_fw", 3789 .mode = S_IWUSR, 3790 }, 3791 .store = ipr_store_update_fw 3792}; 3793 3794/** 3795 * ipr_show_fw_type - Show the adapter's firmware type. 3796 * @dev: class device struct 3797 * @buf: buffer 3798 * 3799 * Return value: 3800 * number of bytes printed to buffer 3801 **/ 3802static ssize_t ipr_show_fw_type(struct device *dev, 3803 struct device_attribute *attr, char *buf) 3804{ 3805 struct Scsi_Host *shost = class_to_shost(dev); 3806 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3807 unsigned long lock_flags = 0; 3808 int len; 3809 3810 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3811 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64); 3812 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3813 return len; 3814} 3815 3816static struct device_attribute ipr_ioa_fw_type_attr = { 3817 .attr = { 3818 .name = "fw_type", 3819 .mode = S_IRUGO, 3820 }, 3821 .show = ipr_show_fw_type 3822}; 3823 3824static struct device_attribute *ipr_ioa_attrs[] = { 3825 &ipr_fw_version_attr, 3826 &ipr_log_level_attr, 3827 &ipr_diagnostics_attr, 3828 &ipr_ioa_state_attr, 3829 &ipr_ioa_reset_attr, 3830 &ipr_update_fw_attr, 3831 &ipr_ioa_fw_type_attr, 3832 NULL, 3833}; 3834 3835#ifdef CONFIG_SCSI_IPR_DUMP 3836/** 3837 * ipr_read_dump - Dump the adapter 3838 * @filp: open sysfs file 3839 * @kobj: kobject struct 3840 * @bin_attr: bin_attribute struct 3841 * @buf: buffer 3842 * @off: offset 3843 * @count: buffer size 3844 * 3845 * Return value: 3846 * number of bytes printed to buffer 3847 **/ 3848static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, 3849 struct bin_attribute *bin_attr, 3850 char *buf, loff_t off, size_t count) 3851{ 3852 struct device *cdev = container_of(kobj, struct device, kobj); 3853 struct Scsi_Host *shost = class_to_shost(cdev); 3854 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3855 struct ipr_dump *dump; 3856 unsigned long lock_flags = 0; 3857 char *src; 3858 int len, sdt_end; 3859 size_t rc = count; 3860 3861 if (!capable(CAP_SYS_ADMIN)) 3862 return -EACCES; 3863 3864 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3865 dump = ioa_cfg->dump; 3866 3867 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 3868 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3869 return 0; 3870 } 3871 kref_get(&dump->kref); 3872 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3873 3874 if (off > dump->driver_dump.hdr.len) { 3875 kref_put(&dump->kref, ipr_release_dump); 3876 return 0; 3877 } 3878 3879 if (off + count > dump->driver_dump.hdr.len) { 3880 count = dump->driver_dump.hdr.len - off; 3881 rc = count; 3882 } 3883 3884 if (count && off < sizeof(dump->driver_dump)) { 3885 if (off + count > sizeof(dump->driver_dump)) 3886 len = sizeof(dump->driver_dump) - off; 3887 else 3888 len = count; 3889 src = (u8 *)&dump->driver_dump + off; 3890 memcpy(buf, src, len); 3891 buf += len; 3892 off += len; 3893 count -= len; 3894 } 3895 3896 off -= sizeof(dump->driver_dump); 3897 3898 if (ioa_cfg->sis64) 3899 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + 3900 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) * 3901 sizeof(struct ipr_sdt_entry)); 3902 else 3903 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + 3904 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry)); 3905 3906 if (count && off < sdt_end) { 3907 if (off + count > sdt_end) 3908 len = sdt_end - off; 3909 else 3910 len = count; 3911 src = (u8 *)&dump->ioa_dump + off; 3912 memcpy(buf, src, len); 3913 buf += len; 3914 off += len; 3915 count -= len; 3916 } 3917 3918 off -= sdt_end; 3919 3920 while (count) { 3921 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 3922 len = PAGE_ALIGN(off) - off; 3923 else 3924 len = count; 3925 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 3926 src += off & ~PAGE_MASK; 3927 memcpy(buf, src, len); 3928 buf += len; 3929 off += len; 3930 count -= len; 3931 } 3932 3933 kref_put(&dump->kref, ipr_release_dump); 3934 return rc; 3935} 3936 3937/** 3938 * ipr_alloc_dump - Prepare for adapter dump 3939 * @ioa_cfg: ioa config struct 3940 * 3941 * Return value: 3942 * 0 on success / other on failure 3943 **/ 3944static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 3945{ 3946 struct ipr_dump *dump; 3947 __be32 **ioa_data; 3948 unsigned long lock_flags = 0; 3949 3950 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 3951 3952 if (!dump) { 3953 ipr_err("Dump memory allocation failed\n"); 3954 return -ENOMEM; 3955 } 3956 3957 if (ioa_cfg->sis64) 3958 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *)); 3959 else 3960 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *)); 3961 3962 if (!ioa_data) { 3963 ipr_err("Dump memory allocation failed\n"); 3964 kfree(dump); 3965 return -ENOMEM; 3966 } 3967 3968 dump->ioa_dump.ioa_data = ioa_data; 3969 3970 kref_init(&dump->kref); 3971 dump->ioa_cfg = ioa_cfg; 3972 3973 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3974 3975 if (INACTIVE != ioa_cfg->sdt_state) { 3976 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3977 vfree(dump->ioa_dump.ioa_data); 3978 kfree(dump); 3979 return 0; 3980 } 3981 3982 ioa_cfg->dump = dump; 3983 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 3984 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { 3985 ioa_cfg->dump_taken = 1; 3986 schedule_work(&ioa_cfg->work_q); 3987 } 3988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3989 3990 return 0; 3991} 3992 3993/** 3994 * ipr_free_dump - Free adapter dump memory 3995 * @ioa_cfg: ioa config struct 3996 * 3997 * Return value: 3998 * 0 on success / other on failure 3999 **/ 4000static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 4001{ 4002 struct ipr_dump *dump; 4003 unsigned long lock_flags = 0; 4004 4005 ENTER; 4006 4007 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4008 dump = ioa_cfg->dump; 4009 if (!dump) { 4010 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4011 return 0; 4012 } 4013 4014 ioa_cfg->dump = NULL; 4015 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4016 4017 kref_put(&dump->kref, ipr_release_dump); 4018 4019 LEAVE; 4020 return 0; 4021} 4022 4023/** 4024 * ipr_write_dump - Setup dump state of adapter 4025 * @filp: open sysfs file 4026 * @kobj: kobject struct 4027 * @bin_attr: bin_attribute struct 4028 * @buf: buffer 4029 * @off: offset 4030 * @count: buffer size 4031 * 4032 * Return value: 4033 * number of bytes printed to buffer 4034 **/ 4035static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, 4036 struct bin_attribute *bin_attr, 4037 char *buf, loff_t off, size_t count) 4038{ 4039 struct device *cdev = container_of(kobj, struct device, kobj); 4040 struct Scsi_Host *shost = class_to_shost(cdev); 4041 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 4042 int rc; 4043 4044 if (!capable(CAP_SYS_ADMIN)) 4045 return -EACCES; 4046 4047 if (buf[0] == '1') 4048 rc = ipr_alloc_dump(ioa_cfg); 4049 else if (buf[0] == '0') 4050 rc = ipr_free_dump(ioa_cfg); 4051 else 4052 return -EINVAL; 4053 4054 if (rc) 4055 return rc; 4056 else 4057 return count; 4058} 4059 4060static struct bin_attribute ipr_dump_attr = { 4061 .attr = { 4062 .name = "dump", 4063 .mode = S_IRUSR | S_IWUSR, 4064 }, 4065 .size = 0, 4066 .read = ipr_read_dump, 4067 .write = ipr_write_dump 4068}; 4069#else 4070static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 4071#endif 4072 4073/** 4074 * ipr_change_queue_depth - Change the device's queue depth 4075 * @sdev: scsi device struct 4076 * @qdepth: depth to set 4077 * @reason: calling context 4078 * 4079 * Return value: 4080 * actual depth set 4081 **/ 4082static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, 4083 int reason) 4084{ 4085 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4086 struct ipr_resource_entry *res; 4087 unsigned long lock_flags = 0; 4088 4089 if (reason != SCSI_QDEPTH_DEFAULT) 4090 return -EOPNOTSUPP; 4091 4092 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4093 res = (struct ipr_resource_entry *)sdev->hostdata; 4094 4095 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 4096 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 4097 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4098 4099 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); 4100 return sdev->queue_depth; 4101} 4102 4103/** 4104 * ipr_change_queue_type - Change the device's queue type 4105 * @dsev: scsi device struct 4106 * @tag_type: type of tags to use 4107 * 4108 * Return value: 4109 * actual queue type set 4110 **/ 4111static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) 4112{ 4113 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4114 struct ipr_resource_entry *res; 4115 unsigned long lock_flags = 0; 4116 4117 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4118 res = (struct ipr_resource_entry *)sdev->hostdata; 4119 4120 if (res) { 4121 if (ipr_is_gscsi(res) && sdev->tagged_supported) { 4122 /* 4123 * We don't bother quiescing the device here since the 4124 * adapter firmware does it for us. 4125 */ 4126 scsi_set_tag_type(sdev, tag_type); 4127 4128 if (tag_type) 4129 scsi_activate_tcq(sdev, sdev->queue_depth); 4130 else 4131 scsi_deactivate_tcq(sdev, sdev->queue_depth); 4132 } else 4133 tag_type = 0; 4134 } else 4135 tag_type = 0; 4136 4137 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4138 return tag_type; 4139} 4140 4141/** 4142 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4143 * @dev: device struct 4144 * @attr: device attribute structure 4145 * @buf: buffer 4146 * 4147 * Return value: 4148 * number of bytes printed to buffer 4149 **/ 4150static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4151{ 4152 struct scsi_device *sdev = to_scsi_device(dev); 4153 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4154 struct ipr_resource_entry *res; 4155 unsigned long lock_flags = 0; 4156 ssize_t len = -ENXIO; 4157 4158 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4159 res = (struct ipr_resource_entry *)sdev->hostdata; 4160 if (res) 4161 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4162 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4163 return len; 4164} 4165 4166static struct device_attribute ipr_adapter_handle_attr = { 4167 .attr = { 4168 .name = "adapter_handle", 4169 .mode = S_IRUSR, 4170 }, 4171 .show = ipr_show_adapter_handle 4172}; 4173 4174/** 4175 * ipr_show_resource_path - Show the resource path or the resource address for 4176 * this device. 4177 * @dev: device struct 4178 * @attr: device attribute structure 4179 * @buf: buffer 4180 * 4181 * Return value: 4182 * number of bytes printed to buffer 4183 **/ 4184static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4185{ 4186 struct scsi_device *sdev = to_scsi_device(dev); 4187 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4188 struct ipr_resource_entry *res; 4189 unsigned long lock_flags = 0; 4190 ssize_t len = -ENXIO; 4191 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4192 4193 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4194 res = (struct ipr_resource_entry *)sdev->hostdata; 4195 if (res && ioa_cfg->sis64) 4196 len = snprintf(buf, PAGE_SIZE, "%s\n", 4197 ipr_format_res_path(res->res_path, buffer, 4198 sizeof(buffer))); 4199 else if (res) 4200 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no, 4201 res->bus, res->target, res->lun); 4202 4203 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4204 return len; 4205} 4206 4207static struct device_attribute ipr_resource_path_attr = { 4208 .attr = { 4209 .name = "resource_path", 4210 .mode = S_IRUGO, 4211 }, 4212 .show = ipr_show_resource_path 4213}; 4214 4215/** 4216 * ipr_show_device_id - Show the device_id for this device. 4217 * @dev: device struct 4218 * @attr: device attribute structure 4219 * @buf: buffer 4220 * 4221 * Return value: 4222 * number of bytes printed to buffer 4223 **/ 4224static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) 4225{ 4226 struct scsi_device *sdev = to_scsi_device(dev); 4227 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4228 struct ipr_resource_entry *res; 4229 unsigned long lock_flags = 0; 4230 ssize_t len = -ENXIO; 4231 4232 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4233 res = (struct ipr_resource_entry *)sdev->hostdata; 4234 if (res && ioa_cfg->sis64) 4235 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id); 4236 else if (res) 4237 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); 4238 4239 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4240 return len; 4241} 4242 4243static struct device_attribute ipr_device_id_attr = { 4244 .attr = { 4245 .name = "device_id", 4246 .mode = S_IRUGO, 4247 }, 4248 .show = ipr_show_device_id 4249}; 4250 4251/** 4252 * ipr_show_resource_type - Show the resource type for this device. 4253 * @dev: device struct 4254 * @attr: device attribute structure 4255 * @buf: buffer 4256 * 4257 * Return value: 4258 * number of bytes printed to buffer 4259 **/ 4260static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) 4261{ 4262 struct scsi_device *sdev = to_scsi_device(dev); 4263 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4264 struct ipr_resource_entry *res; 4265 unsigned long lock_flags = 0; 4266 ssize_t len = -ENXIO; 4267 4268 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4269 res = (struct ipr_resource_entry *)sdev->hostdata; 4270 4271 if (res) 4272 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type); 4273 4274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4275 return len; 4276} 4277 4278static struct device_attribute ipr_resource_type_attr = { 4279 .attr = { 4280 .name = "resource_type", 4281 .mode = S_IRUGO, 4282 }, 4283 .show = ipr_show_resource_type 4284}; 4285 4286static struct device_attribute *ipr_dev_attrs[] = { 4287 &ipr_adapter_handle_attr, 4288 &ipr_resource_path_attr, 4289 &ipr_device_id_attr, 4290 &ipr_resource_type_attr, 4291 NULL, 4292}; 4293 4294/** 4295 * ipr_biosparam - Return the HSC mapping 4296 * @sdev: scsi device struct 4297 * @block_device: block device pointer 4298 * @capacity: capacity of the device 4299 * @parm: Array containing returned HSC values. 4300 * 4301 * This function generates the HSC parms that fdisk uses. 4302 * We want to make sure we return something that places partitions 4303 * on 4k boundaries for best performance with the IOA. 4304 * 4305 * Return value: 4306 * 0 on success 4307 **/ 4308static int ipr_biosparam(struct scsi_device *sdev, 4309 struct block_device *block_device, 4310 sector_t capacity, int *parm) 4311{ 4312 int heads, sectors; 4313 sector_t cylinders; 4314 4315 heads = 128; 4316 sectors = 32; 4317 4318 cylinders = capacity; 4319 sector_div(cylinders, (128 * 32)); 4320 4321 /* return result */ 4322 parm[0] = heads; 4323 parm[1] = sectors; 4324 parm[2] = cylinders; 4325 4326 return 0; 4327} 4328 4329/** 4330 * ipr_find_starget - Find target based on bus/target. 4331 * @starget: scsi target struct 4332 * 4333 * Return value: 4334 * resource entry pointer if found / NULL if not found 4335 **/ 4336static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4337{ 4338 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4339 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4340 struct ipr_resource_entry *res; 4341 4342 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4343 if ((res->bus == starget->channel) && 4344 (res->target == starget->id)) { 4345 return res; 4346 } 4347 } 4348 4349 return NULL; 4350} 4351 4352static struct ata_port_info sata_port_info; 4353 4354/** 4355 * ipr_target_alloc - Prepare for commands to a SCSI target 4356 * @starget: scsi target struct 4357 * 4358 * If the device is a SATA device, this function allocates an 4359 * ATA port with libata, else it does nothing. 4360 * 4361 * Return value: 4362 * 0 on success / non-0 on failure 4363 **/ 4364static int ipr_target_alloc(struct scsi_target *starget) 4365{ 4366 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4367 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4368 struct ipr_sata_port *sata_port; 4369 struct ata_port *ap; 4370 struct ipr_resource_entry *res; 4371 unsigned long lock_flags; 4372 4373 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4374 res = ipr_find_starget(starget); 4375 starget->hostdata = NULL; 4376 4377 if (res && ipr_is_gata(res)) { 4378 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4379 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4380 if (!sata_port) 4381 return -ENOMEM; 4382 4383 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4384 if (ap) { 4385 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4386 sata_port->ioa_cfg = ioa_cfg; 4387 sata_port->ap = ap; 4388 sata_port->res = res; 4389 4390 res->sata_port = sata_port; 4391 ap->private_data = sata_port; 4392 starget->hostdata = sata_port; 4393 } else { 4394 kfree(sata_port); 4395 return -ENOMEM; 4396 } 4397 } 4398 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4399 4400 return 0; 4401} 4402 4403/** 4404 * ipr_target_destroy - Destroy a SCSI target 4405 * @starget: scsi target struct 4406 * 4407 * If the device was a SATA device, this function frees the libata 4408 * ATA port, else it does nothing. 4409 * 4410 **/ 4411static void ipr_target_destroy(struct scsi_target *starget) 4412{ 4413 struct ipr_sata_port *sata_port = starget->hostdata; 4414 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4415 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4416 4417 if (ioa_cfg->sis64) { 4418 if (!ipr_find_starget(starget)) { 4419 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4420 clear_bit(starget->id, ioa_cfg->array_ids); 4421 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4422 clear_bit(starget->id, ioa_cfg->vset_ids); 4423 else if (starget->channel == 0) 4424 clear_bit(starget->id, ioa_cfg->target_ids); 4425 } 4426 } 4427 4428 if (sata_port) { 4429 starget->hostdata = NULL; 4430 ata_sas_port_destroy(sata_port->ap); 4431 kfree(sata_port); 4432 } 4433} 4434 4435/** 4436 * ipr_find_sdev - Find device based on bus/target/lun. 4437 * @sdev: scsi device struct 4438 * 4439 * Return value: 4440 * resource entry pointer if found / NULL if not found 4441 **/ 4442static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4443{ 4444 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4445 struct ipr_resource_entry *res; 4446 4447 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4448 if ((res->bus == sdev->channel) && 4449 (res->target == sdev->id) && 4450 (res->lun == sdev->lun)) 4451 return res; 4452 } 4453 4454 return NULL; 4455} 4456 4457/** 4458 * ipr_slave_destroy - Unconfigure a SCSI device 4459 * @sdev: scsi device struct 4460 * 4461 * Return value: 4462 * nothing 4463 **/ 4464static void ipr_slave_destroy(struct scsi_device *sdev) 4465{ 4466 struct ipr_resource_entry *res; 4467 struct ipr_ioa_cfg *ioa_cfg; 4468 unsigned long lock_flags = 0; 4469 4470 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4471 4472 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4473 res = (struct ipr_resource_entry *) sdev->hostdata; 4474 if (res) { 4475 if (res->sata_port) 4476 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; 4477 sdev->hostdata = NULL; 4478 res->sdev = NULL; 4479 res->sata_port = NULL; 4480 } 4481 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4482} 4483 4484/** 4485 * ipr_slave_configure - Configure a SCSI device 4486 * @sdev: scsi device struct 4487 * 4488 * This function configures the specified scsi device. 4489 * 4490 * Return value: 4491 * 0 on success 4492 **/ 4493static int ipr_slave_configure(struct scsi_device *sdev) 4494{ 4495 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4496 struct ipr_resource_entry *res; 4497 struct ata_port *ap = NULL; 4498 unsigned long lock_flags = 0; 4499 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4500 4501 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4502 res = sdev->hostdata; 4503 if (res) { 4504 if (ipr_is_af_dasd_device(res)) 4505 sdev->type = TYPE_RAID; 4506 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4507 sdev->scsi_level = 4; 4508 sdev->no_uld_attach = 1; 4509 } 4510 if (ipr_is_vset_device(res)) { 4511 blk_queue_rq_timeout(sdev->request_queue, 4512 IPR_VSET_RW_TIMEOUT); 4513 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4514 } 4515 if (ipr_is_gata(res) && res->sata_port) 4516 ap = res->sata_port->ap; 4517 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4518 4519 if (ap) { 4520 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); 4521 ata_sas_slave_configure(sdev, ap); 4522 } else 4523 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); 4524 if (ioa_cfg->sis64) 4525 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4526 ipr_format_res_path(res->res_path, buffer, 4527 sizeof(buffer))); 4528 return 0; 4529 } 4530 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4531 return 0; 4532} 4533 4534/** 4535 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4536 * @sdev: scsi device struct 4537 * 4538 * This function initializes an ATA port so that future commands 4539 * sent through queuecommand will work. 4540 * 4541 * Return value: 4542 * 0 on success 4543 **/ 4544static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4545{ 4546 struct ipr_sata_port *sata_port = NULL; 4547 int rc = -ENXIO; 4548 4549 ENTER; 4550 if (sdev->sdev_target) 4551 sata_port = sdev->sdev_target->hostdata; 4552 if (sata_port) { 4553 rc = ata_sas_port_init(sata_port->ap); 4554 if (rc == 0) 4555 rc = ata_sas_sync_probe(sata_port->ap); 4556 } 4557 4558 if (rc) 4559 ipr_slave_destroy(sdev); 4560 4561 LEAVE; 4562 return rc; 4563} 4564 4565/** 4566 * ipr_slave_alloc - Prepare for commands to a device. 4567 * @sdev: scsi device struct 4568 * 4569 * This function saves a pointer to the resource entry 4570 * in the scsi device struct if the device exists. We 4571 * can then use this pointer in ipr_queuecommand when 4572 * handling new commands. 4573 * 4574 * Return value: 4575 * 0 on success / -ENXIO if device does not exist 4576 **/ 4577static int ipr_slave_alloc(struct scsi_device *sdev) 4578{ 4579 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4580 struct ipr_resource_entry *res; 4581 unsigned long lock_flags; 4582 int rc = -ENXIO; 4583 4584 sdev->hostdata = NULL; 4585 4586 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4587 4588 res = ipr_find_sdev(sdev); 4589 if (res) { 4590 res->sdev = sdev; 4591 res->add_to_ml = 0; 4592 res->in_erp = 0; 4593 sdev->hostdata = res; 4594 if (!ipr_is_naca_model(res)) 4595 res->needs_sync_complete = 1; 4596 rc = 0; 4597 if (ipr_is_gata(res)) { 4598 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4599 return ipr_ata_slave_alloc(sdev); 4600 } 4601 } 4602 4603 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4604 4605 return rc; 4606} 4607 4608/** 4609 * ipr_eh_host_reset - Reset the host adapter 4610 * @scsi_cmd: scsi command struct 4611 * 4612 * Return value: 4613 * SUCCESS / FAILED 4614 **/ 4615static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) 4616{ 4617 struct ipr_ioa_cfg *ioa_cfg; 4618 int rc; 4619 4620 ENTER; 4621 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4622 4623 if (!ioa_cfg->in_reset_reload) { 4624 dev_err(&ioa_cfg->pdev->dev, 4625 "Adapter being reset as a result of error recovery.\n"); 4626 4627 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 4628 ioa_cfg->sdt_state = GET_DUMP; 4629 } 4630 4631 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); 4632 4633 LEAVE; 4634 return rc; 4635} 4636 4637static int ipr_eh_host_reset(struct scsi_cmnd * cmd) 4638{ 4639 int rc; 4640 4641 spin_lock_irq(cmd->device->host->host_lock); 4642 rc = __ipr_eh_host_reset(cmd); 4643 spin_unlock_irq(cmd->device->host->host_lock); 4644 4645 return rc; 4646} 4647 4648/** 4649 * ipr_device_reset - Reset the device 4650 * @ioa_cfg: ioa config struct 4651 * @res: resource entry struct 4652 * 4653 * This function issues a device reset to the affected device. 4654 * If the device is a SCSI device, a LUN reset will be sent 4655 * to the device first. If that does not work, a target reset 4656 * will be sent. If the device is a SATA device, a PHY reset will 4657 * be sent. 4658 * 4659 * Return value: 4660 * 0 on success / non-zero on failure 4661 **/ 4662static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 4663 struct ipr_resource_entry *res) 4664{ 4665 struct ipr_cmnd *ipr_cmd; 4666 struct ipr_ioarcb *ioarcb; 4667 struct ipr_cmd_pkt *cmd_pkt; 4668 struct ipr_ioarcb_ata_regs *regs; 4669 u32 ioasc; 4670 4671 ENTER; 4672 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4673 ioarcb = &ipr_cmd->ioarcb; 4674 cmd_pkt = &ioarcb->cmd_pkt; 4675 4676 if (ipr_cmd->ioa_cfg->sis64) { 4677 regs = &ipr_cmd->i.ata_ioadl.regs; 4678 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 4679 } else 4680 regs = &ioarcb->u.add_data.u.regs; 4681 4682 ioarcb->res_handle = res->res_handle; 4683 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4684 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4685 if (ipr_is_gata(res)) { 4686 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 4687 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 4688 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 4689 } 4690 4691 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4692 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4693 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4694 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { 4695 if (ipr_cmd->ioa_cfg->sis64) 4696 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 4697 sizeof(struct ipr_ioasa_gata)); 4698 else 4699 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 4700 sizeof(struct ipr_ioasa_gata)); 4701 } 4702 4703 LEAVE; 4704 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); 4705} 4706 4707/** 4708 * ipr_sata_reset - Reset the SATA port 4709 * @link: SATA link to reset 4710 * @classes: class of the attached device 4711 * 4712 * This function issues a SATA phy reset to the affected ATA link. 4713 * 4714 * Return value: 4715 * 0 on success / non-zero on failure 4716 **/ 4717static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 4718 unsigned long deadline) 4719{ 4720 struct ipr_sata_port *sata_port = link->ap->private_data; 4721 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 4722 struct ipr_resource_entry *res; 4723 unsigned long lock_flags = 0; 4724 int rc = -ENXIO; 4725 4726 ENTER; 4727 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4728 while(ioa_cfg->in_reset_reload) { 4729 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4730 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4731 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4732 } 4733 4734 res = sata_port->res; 4735 if (res) { 4736 rc = ipr_device_reset(ioa_cfg, res); 4737 *classes = res->ata_class; 4738 } 4739 4740 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4741 LEAVE; 4742 return rc; 4743} 4744 4745/** 4746 * ipr_eh_dev_reset - Reset the device 4747 * @scsi_cmd: scsi command struct 4748 * 4749 * This function issues a device reset to the affected device. 4750 * A LUN reset will be sent to the device first. If that does 4751 * not work, a target reset will be sent. 4752 * 4753 * Return value: 4754 * SUCCESS / FAILED 4755 **/ 4756static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) 4757{ 4758 struct ipr_cmnd *ipr_cmd; 4759 struct ipr_ioa_cfg *ioa_cfg; 4760 struct ipr_resource_entry *res; 4761 struct ata_port *ap; 4762 int rc = 0; 4763 4764 ENTER; 4765 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 4766 res = scsi_cmd->device->hostdata; 4767 4768 if (!res) 4769 return FAILED; 4770 4771 /* 4772 * If we are currently going through reset/reload, return failed. This will force the 4773 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 4774 * reset to complete 4775 */ 4776 if (ioa_cfg->in_reset_reload) 4777 return FAILED; 4778 if (ioa_cfg->ioa_is_dead) 4779 return FAILED; 4780 4781 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4782 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4783 if (ipr_cmd->scsi_cmd) 4784 ipr_cmd->done = ipr_scsi_eh_done; 4785 if (ipr_cmd->qc) 4786 ipr_cmd->done = ipr_sata_eh_done; 4787 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 4788 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 4789 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 4790 } 4791 } 4792 } 4793 4794 res->resetting_device = 1; 4795 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 4796 4797 if (ipr_is_gata(res) && res->sata_port) { 4798 ap = res->sata_port->ap; 4799 spin_unlock_irq(scsi_cmd->device->host->host_lock); 4800 ata_std_error_handler(ap); 4801 spin_lock_irq(scsi_cmd->device->host->host_lock); 4802 4803 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4804 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 4805 rc = -EIO; 4806 break; 4807 } 4808 } 4809 } else 4810 rc = ipr_device_reset(ioa_cfg, res); 4811 res->resetting_device = 0; 4812 4813 LEAVE; 4814 return (rc ? FAILED : SUCCESS); 4815} 4816 4817static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) 4818{ 4819 int rc; 4820 4821 spin_lock_irq(cmd->device->host->host_lock); 4822 rc = __ipr_eh_dev_reset(cmd); 4823 spin_unlock_irq(cmd->device->host->host_lock); 4824 4825 return rc; 4826} 4827 4828/** 4829 * ipr_bus_reset_done - Op done function for bus reset. 4830 * @ipr_cmd: ipr command struct 4831 * 4832 * This function is the op done function for a bus reset 4833 * 4834 * Return value: 4835 * none 4836 **/ 4837static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 4838{ 4839 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4840 struct ipr_resource_entry *res; 4841 4842 ENTER; 4843 if (!ioa_cfg->sis64) 4844 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4845 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 4846 scsi_report_bus_reset(ioa_cfg->host, res->bus); 4847 break; 4848 } 4849 } 4850 4851 /* 4852 * If abort has not completed, indicate the reset has, else call the 4853 * abort's done function to wake the sleeping eh thread 4854 */ 4855 if (ipr_cmd->sibling->sibling) 4856 ipr_cmd->sibling->sibling = NULL; 4857 else 4858 ipr_cmd->sibling->done(ipr_cmd->sibling); 4859 4860 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4861 LEAVE; 4862} 4863 4864/** 4865 * ipr_abort_timeout - An abort task has timed out 4866 * @ipr_cmd: ipr command struct 4867 * 4868 * This function handles when an abort task times out. If this 4869 * happens we issue a bus reset since we have resources tied 4870 * up that must be freed before returning to the midlayer. 4871 * 4872 * Return value: 4873 * none 4874 **/ 4875static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) 4876{ 4877 struct ipr_cmnd *reset_cmd; 4878 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 4879 struct ipr_cmd_pkt *cmd_pkt; 4880 unsigned long lock_flags = 0; 4881 4882 ENTER; 4883 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4884 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 4885 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4886 return; 4887 } 4888 4889 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 4890 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4891 ipr_cmd->sibling = reset_cmd; 4892 reset_cmd->sibling = ipr_cmd; 4893 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 4894 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 4895 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4896 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 4897 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 4898 4899 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 4900 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4901 LEAVE; 4902} 4903 4904/** 4905 * ipr_cancel_op - Cancel specified op 4906 * @scsi_cmd: scsi command struct 4907 * 4908 * This function cancels specified op. 4909 * 4910 * Return value: 4911 * SUCCESS / FAILED 4912 **/ 4913static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) 4914{ 4915 struct ipr_cmnd *ipr_cmd; 4916 struct ipr_ioa_cfg *ioa_cfg; 4917 struct ipr_resource_entry *res; 4918 struct ipr_cmd_pkt *cmd_pkt; 4919 u32 ioasc, int_reg; 4920 int op_found = 0; 4921 4922 ENTER; 4923 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 4924 res = scsi_cmd->device->hostdata; 4925 4926 /* If we are currently going through reset/reload, return failed. 4927 * This will force the mid-layer to call ipr_eh_host_reset, 4928 * which will then go to sleep and wait for the reset to complete 4929 */ 4930 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) 4931 return FAILED; 4932 if (!res) 4933 return FAILED; 4934 4935 /* 4936 * If we are aborting a timed out op, chances are that the timeout was caused 4937 * by a still not detected EEH error. In such cases, reading a register will 4938 * trigger the EEH recovery infrastructure. 4939 */ 4940 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 4941 4942 if (!ipr_is_gscsi(res)) 4943 return FAILED; 4944 4945 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 4946 if (ipr_cmd->scsi_cmd == scsi_cmd) { 4947 ipr_cmd->done = ipr_scsi_eh_done; 4948 op_found = 1; 4949 break; 4950 } 4951 } 4952 4953 if (!op_found) 4954 return SUCCESS; 4955 4956 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 4957 ipr_cmd->ioarcb.res_handle = res->res_handle; 4958 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 4959 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 4960 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 4961 ipr_cmd->u.sdev = scsi_cmd->device; 4962 4963 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 4964 scsi_cmd->cmnd[0]); 4965 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 4966 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 4967 4968 /* 4969 * If the abort task timed out and we sent a bus reset, we will get 4970 * one the following responses to the abort 4971 */ 4972 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 4973 ioasc = 0; 4974 ipr_trace; 4975 } 4976 4977 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 4978 if (!ipr_is_naca_model(res)) 4979 res->needs_sync_complete = 1; 4980 4981 LEAVE; 4982 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); 4983} 4984 4985/** 4986 * ipr_eh_abort - Abort a single op 4987 * @scsi_cmd: scsi command struct 4988 * 4989 * Return value: 4990 * SUCCESS / FAILED 4991 **/ 4992static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) 4993{ 4994 unsigned long flags; 4995 int rc; 4996 4997 ENTER; 4998 4999 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 5000 rc = ipr_cancel_op(scsi_cmd); 5001 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 5002 5003 LEAVE; 5004 return rc; 5005} 5006 5007/** 5008 * ipr_handle_other_interrupt - Handle "other" interrupts 5009 * @ioa_cfg: ioa config struct 5010 * @int_reg: interrupt register 5011 * 5012 * Return value: 5013 * IRQ_NONE / IRQ_HANDLED 5014 **/ 5015static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 5016 u32 int_reg) 5017{ 5018 irqreturn_t rc = IRQ_HANDLED; 5019 u32 int_mask_reg; 5020 5021 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 5022 int_reg &= ~int_mask_reg; 5023 5024 /* If an interrupt on the adapter did not occur, ignore it. 5025 * Or in the case of SIS 64, check for a stage change interrupt. 5026 */ 5027 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) { 5028 if (ioa_cfg->sis64) { 5029 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 5030 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 5031 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 5032 5033 /* clear stage change */ 5034 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 5035 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 5036 list_del(&ioa_cfg->reset_cmd->queue); 5037 del_timer(&ioa_cfg->reset_cmd->timer); 5038 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 5039 return IRQ_HANDLED; 5040 } 5041 } 5042 5043 return IRQ_NONE; 5044 } 5045 5046 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 5047 /* Mask the interrupt */ 5048 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 5049 5050 /* Clear the interrupt */ 5051 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); 5052 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 5053 5054 list_del(&ioa_cfg->reset_cmd->queue); 5055 del_timer(&ioa_cfg->reset_cmd->timer); 5056 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 5057 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { 5058 if (ioa_cfg->clear_isr) { 5059 if (ipr_debug && printk_ratelimit()) 5060 dev_err(&ioa_cfg->pdev->dev, 5061 "Spurious interrupt detected. 0x%08X\n", int_reg); 5062 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 5063 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5064 return IRQ_NONE; 5065 } 5066 } else { 5067 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 5068 ioa_cfg->ioa_unit_checked = 1; 5069 else 5070 dev_err(&ioa_cfg->pdev->dev, 5071 "Permanent IOA failure. 0x%08X\n", int_reg); 5072 5073 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5074 ioa_cfg->sdt_state = GET_DUMP; 5075 5076 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 5077 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5078 } 5079 5080 return rc; 5081} 5082 5083/** 5084 * ipr_isr_eh - Interrupt service routine error handler 5085 * @ioa_cfg: ioa config struct 5086 * @msg: message to log 5087 * 5088 * Return value: 5089 * none 5090 **/ 5091static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) 5092{ 5093 ioa_cfg->errors_logged++; 5094 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); 5095 5096 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5097 ioa_cfg->sdt_state = GET_DUMP; 5098 5099 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5100} 5101 5102/** 5103 * ipr_isr - Interrupt service routine 5104 * @irq: irq number 5105 * @devp: pointer to ioa config struct 5106 * 5107 * Return value: 5108 * IRQ_NONE / IRQ_HANDLED 5109 **/ 5110static irqreturn_t ipr_isr(int irq, void *devp) 5111{ 5112 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 5113 unsigned long lock_flags = 0; 5114 u32 int_reg = 0; 5115 u32 ioasc; 5116 u16 cmd_index; 5117 int num_hrrq = 0; 5118 int irq_none = 0; 5119 struct ipr_cmnd *ipr_cmd; 5120 irqreturn_t rc = IRQ_NONE; 5121 5122 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5123 5124 /* If interrupts are disabled, ignore the interrupt */ 5125 if (!ioa_cfg->allow_interrupts) { 5126 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5127 return IRQ_NONE; 5128 } 5129 5130 while (1) { 5131 ipr_cmd = NULL; 5132 5133 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 5134 ioa_cfg->toggle_bit) { 5135 5136 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & 5137 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 5138 5139 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { 5140 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); 5141 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5142 return IRQ_HANDLED; 5143 } 5144 5145 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 5146 5147 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5148 5149 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 5150 5151 list_del(&ipr_cmd->queue); 5152 del_timer(&ipr_cmd->timer); 5153 ipr_cmd->done(ipr_cmd); 5154 5155 rc = IRQ_HANDLED; 5156 5157 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { 5158 ioa_cfg->hrrq_curr++; 5159 } else { 5160 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 5161 ioa_cfg->toggle_bit ^= 1u; 5162 } 5163 } 5164 5165 if (ipr_cmd && !ioa_cfg->clear_isr) 5166 break; 5167 5168 if (ipr_cmd != NULL) { 5169 /* Clear the PCI interrupt */ 5170 num_hrrq = 0; 5171 do { 5172 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 5173 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5174 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 5175 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 5176 5177 } else if (rc == IRQ_NONE && irq_none == 0) { 5178 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5179 irq_none++; 5180 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES && 5181 int_reg & IPR_PCII_HRRQ_UPDATED) { 5182 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); 5183 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5184 return IRQ_HANDLED; 5185 } else 5186 break; 5187 } 5188 5189 if (unlikely(rc == IRQ_NONE)) 5190 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 5191 5192 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5193 return rc; 5194} 5195 5196/** 5197 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 5198 * @ioa_cfg: ioa config struct 5199 * @ipr_cmd: ipr command struct 5200 * 5201 * Return value: 5202 * 0 on success / -1 on failure 5203 **/ 5204static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 5205 struct ipr_cmnd *ipr_cmd) 5206{ 5207 int i, nseg; 5208 struct scatterlist *sg; 5209 u32 length; 5210 u32 ioadl_flags = 0; 5211 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5212 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5213 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5214 5215 length = scsi_bufflen(scsi_cmd); 5216 if (!length) 5217 return 0; 5218 5219 nseg = scsi_dma_map(scsi_cmd); 5220 if (nseg < 0) { 5221 if (printk_ratelimit()) 5222 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5223 return -1; 5224 } 5225 5226 ipr_cmd->dma_use_sg = nseg; 5227 5228 ioarcb->data_transfer_length = cpu_to_be32(length); 5229 ioarcb->ioadl_len = 5230 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5231 5232 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5233 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5234 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5235 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5236 ioadl_flags = IPR_IOADL_FLAGS_READ; 5237 5238 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5239 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5240 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5241 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5242 } 5243 5244 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5245 return 0; 5246} 5247 5248/** 5249 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5250 * @ioa_cfg: ioa config struct 5251 * @ipr_cmd: ipr command struct 5252 * 5253 * Return value: 5254 * 0 on success / -1 on failure 5255 **/ 5256static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5257 struct ipr_cmnd *ipr_cmd) 5258{ 5259 int i, nseg; 5260 struct scatterlist *sg; 5261 u32 length; 5262 u32 ioadl_flags = 0; 5263 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5264 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5265 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5266 5267 length = scsi_bufflen(scsi_cmd); 5268 if (!length) 5269 return 0; 5270 5271 nseg = scsi_dma_map(scsi_cmd); 5272 if (nseg < 0) { 5273 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); 5274 return -1; 5275 } 5276 5277 ipr_cmd->dma_use_sg = nseg; 5278 5279 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5280 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5281 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5282 ioarcb->data_transfer_length = cpu_to_be32(length); 5283 ioarcb->ioadl_len = 5284 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5285 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5286 ioadl_flags = IPR_IOADL_FLAGS_READ; 5287 ioarcb->read_data_transfer_length = cpu_to_be32(length); 5288 ioarcb->read_ioadl_len = 5289 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5290 } 5291 5292 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 5293 ioadl = ioarcb->u.add_data.u.ioadl; 5294 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 5295 offsetof(struct ipr_ioarcb, u.add_data)); 5296 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5297 } 5298 5299 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5300 ioadl[i].flags_and_data_len = 5301 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 5302 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 5303 } 5304 5305 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5306 return 0; 5307} 5308 5309/** 5310 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes 5311 * @scsi_cmd: scsi command struct 5312 * 5313 * Return value: 5314 * task attributes 5315 **/ 5316static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) 5317{ 5318 u8 tag[2]; 5319 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; 5320 5321 if (scsi_populate_tag_msg(scsi_cmd, tag)) { 5322 switch (tag[0]) { 5323 case MSG_SIMPLE_TAG: 5324 rc = IPR_FLAGS_LO_SIMPLE_TASK; 5325 break; 5326 case MSG_HEAD_TAG: 5327 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; 5328 break; 5329 case MSG_ORDERED_TAG: 5330 rc = IPR_FLAGS_LO_ORDERED_TASK; 5331 break; 5332 }; 5333 } 5334 5335 return rc; 5336} 5337 5338/** 5339 * ipr_erp_done - Process completion of ERP for a device 5340 * @ipr_cmd: ipr command struct 5341 * 5342 * This function copies the sense buffer into the scsi_cmd 5343 * struct and pushes the scsi_done function. 5344 * 5345 * Return value: 5346 * nothing 5347 **/ 5348static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 5349{ 5350 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5351 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5352 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5353 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5354 5355 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5356 scsi_cmd->result |= (DID_ERROR << 16); 5357 scmd_printk(KERN_ERR, scsi_cmd, 5358 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 5359 } else { 5360 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 5361 SCSI_SENSE_BUFFERSIZE); 5362 } 5363 5364 if (res) { 5365 if (!ipr_is_naca_model(res)) 5366 res->needs_sync_complete = 1; 5367 res->in_erp = 0; 5368 } 5369 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5370 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5371 scsi_cmd->scsi_done(scsi_cmd); 5372} 5373 5374/** 5375 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 5376 * @ipr_cmd: ipr command struct 5377 * 5378 * Return value: 5379 * none 5380 **/ 5381static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 5382{ 5383 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5384 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5385 dma_addr_t dma_addr = ipr_cmd->dma_addr; 5386 5387 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 5388 ioarcb->data_transfer_length = 0; 5389 ioarcb->read_data_transfer_length = 0; 5390 ioarcb->ioadl_len = 0; 5391 ioarcb->read_ioadl_len = 0; 5392 ioasa->hdr.ioasc = 0; 5393 ioasa->hdr.residual_data_len = 0; 5394 5395 if (ipr_cmd->ioa_cfg->sis64) 5396 ioarcb->u.sis64_addr_data.data_ioadl_addr = 5397 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 5398 else { 5399 ioarcb->write_ioadl_addr = 5400 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 5401 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 5402 } 5403} 5404 5405/** 5406 * ipr_erp_request_sense - Send request sense to a device 5407 * @ipr_cmd: ipr command struct 5408 * 5409 * This function sends a request sense to a device as a result 5410 * of a check condition. 5411 * 5412 * Return value: 5413 * nothing 5414 **/ 5415static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 5416{ 5417 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5418 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5419 5420 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 5421 ipr_erp_done(ipr_cmd); 5422 return; 5423 } 5424 5425 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5426 5427 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 5428 cmd_pkt->cdb[0] = REQUEST_SENSE; 5429 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 5430 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 5431 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5432 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 5433 5434 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 5435 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 5436 5437 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 5438 IPR_REQUEST_SENSE_TIMEOUT * 2); 5439} 5440 5441/** 5442 * ipr_erp_cancel_all - Send cancel all to a device 5443 * @ipr_cmd: ipr command struct 5444 * 5445 * This function sends a cancel all to a device to clear the 5446 * queue. If we are running TCQ on the device, QERR is set to 1, 5447 * which means all outstanding ops have been dropped on the floor. 5448 * Cancel all will return them to us. 5449 * 5450 * Return value: 5451 * nothing 5452 **/ 5453static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 5454{ 5455 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5456 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5457 struct ipr_cmd_pkt *cmd_pkt; 5458 5459 res->in_erp = 1; 5460 5461 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 5462 5463 if (!scsi_get_tag_type(scsi_cmd->device)) { 5464 ipr_erp_request_sense(ipr_cmd); 5465 return; 5466 } 5467 5468 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5469 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5470 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5471 5472 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 5473 IPR_CANCEL_ALL_TIMEOUT); 5474} 5475 5476/** 5477 * ipr_dump_ioasa - Dump contents of IOASA 5478 * @ioa_cfg: ioa config struct 5479 * @ipr_cmd: ipr command struct 5480 * @res: resource entry struct 5481 * 5482 * This function is invoked by the interrupt handler when ops 5483 * fail. It will log the IOASA if appropriate. Only called 5484 * for GPDD ops. 5485 * 5486 * Return value: 5487 * none 5488 **/ 5489static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 5490 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 5491{ 5492 int i; 5493 u16 data_len; 5494 u32 ioasc, fd_ioasc; 5495 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5496 __be32 *ioasa_data = (__be32 *)ioasa; 5497 int error_index; 5498 5499 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; 5500 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; 5501 5502 if (0 == ioasc) 5503 return; 5504 5505 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 5506 return; 5507 5508 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 5509 error_index = ipr_get_error(fd_ioasc); 5510 else 5511 error_index = ipr_get_error(ioasc); 5512 5513 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 5514 /* Don't log an error if the IOA already logged one */ 5515 if (ioasa->hdr.ilid != 0) 5516 return; 5517 5518 if (!ipr_is_gscsi(res)) 5519 return; 5520 5521 if (ipr_error_table[error_index].log_ioasa == 0) 5522 return; 5523 } 5524 5525 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 5526 5527 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); 5528 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) 5529 data_len = sizeof(struct ipr_ioasa64); 5530 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) 5531 data_len = sizeof(struct ipr_ioasa); 5532 5533 ipr_err("IOASA Dump:\n"); 5534 5535 for (i = 0; i < data_len / 4; i += 4) { 5536 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 5537 be32_to_cpu(ioasa_data[i]), 5538 be32_to_cpu(ioasa_data[i+1]), 5539 be32_to_cpu(ioasa_data[i+2]), 5540 be32_to_cpu(ioasa_data[i+3])); 5541 } 5542} 5543 5544/** 5545 * ipr_gen_sense - Generate SCSI sense data from an IOASA 5546 * @ioasa: IOASA 5547 * @sense_buf: sense data buffer 5548 * 5549 * Return value: 5550 * none 5551 **/ 5552static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 5553{ 5554 u32 failing_lba; 5555 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 5556 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 5557 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5558 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); 5559 5560 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 5561 5562 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 5563 return; 5564 5565 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 5566 5567 if (ipr_is_vset_device(res) && 5568 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 5569 ioasa->u.vset.failing_lba_hi != 0) { 5570 sense_buf[0] = 0x72; 5571 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 5572 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 5573 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 5574 5575 sense_buf[7] = 12; 5576 sense_buf[8] = 0; 5577 sense_buf[9] = 0x0A; 5578 sense_buf[10] = 0x80; 5579 5580 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 5581 5582 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 5583 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 5584 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 5585 sense_buf[15] = failing_lba & 0x000000ff; 5586 5587 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5588 5589 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 5590 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 5591 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 5592 sense_buf[19] = failing_lba & 0x000000ff; 5593 } else { 5594 sense_buf[0] = 0x70; 5595 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 5596 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 5597 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 5598 5599 /* Illegal request */ 5600 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 5601 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 5602 sense_buf[7] = 10; /* additional length */ 5603 5604 /* IOARCB was in error */ 5605 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 5606 sense_buf[15] = 0xC0; 5607 else /* Parameter data was invalid */ 5608 sense_buf[15] = 0x80; 5609 5610 sense_buf[16] = 5611 ((IPR_FIELD_POINTER_MASK & 5612 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; 5613 sense_buf[17] = 5614 (IPR_FIELD_POINTER_MASK & 5615 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; 5616 } else { 5617 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 5618 if (ipr_is_vset_device(res)) 5619 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 5620 else 5621 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 5622 5623 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 5624 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 5625 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 5626 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 5627 sense_buf[6] = failing_lba & 0x000000ff; 5628 } 5629 5630 sense_buf[7] = 6; /* additional length */ 5631 } 5632 } 5633} 5634 5635/** 5636 * ipr_get_autosense - Copy autosense data to sense buffer 5637 * @ipr_cmd: ipr command struct 5638 * 5639 * This function copies the autosense buffer to the buffer 5640 * in the scsi_cmd, if there is autosense available. 5641 * 5642 * Return value: 5643 * 1 if autosense was available / 0 if not 5644 **/ 5645static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 5646{ 5647 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 5648 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 5649 5650 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 5651 return 0; 5652 5653 if (ipr_cmd->ioa_cfg->sis64) 5654 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, 5655 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), 5656 SCSI_SENSE_BUFFERSIZE)); 5657 else 5658 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 5659 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 5660 SCSI_SENSE_BUFFERSIZE)); 5661 return 1; 5662} 5663 5664/** 5665 * ipr_erp_start - Process an error response for a SCSI op 5666 * @ioa_cfg: ioa config struct 5667 * @ipr_cmd: ipr command struct 5668 * 5669 * This function determines whether or not to initiate ERP 5670 * on the affected device. 5671 * 5672 * Return value: 5673 * nothing 5674 **/ 5675static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 5676 struct ipr_cmnd *ipr_cmd) 5677{ 5678 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5679 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 5680 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5681 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 5682 5683 if (!res) { 5684 ipr_scsi_eh_done(ipr_cmd); 5685 return; 5686 } 5687 5688 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 5689 ipr_gen_sense(ipr_cmd); 5690 5691 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 5692 5693 switch (masked_ioasc) { 5694 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 5695 if (ipr_is_naca_model(res)) 5696 scsi_cmd->result |= (DID_ABORT << 16); 5697 else 5698 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5699 break; 5700 case IPR_IOASC_IR_RESOURCE_HANDLE: 5701 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 5702 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5703 break; 5704 case IPR_IOASC_HW_SEL_TIMEOUT: 5705 scsi_cmd->result |= (DID_NO_CONNECT << 16); 5706 if (!ipr_is_naca_model(res)) 5707 res->needs_sync_complete = 1; 5708 break; 5709 case IPR_IOASC_SYNC_REQUIRED: 5710 if (!res->in_erp) 5711 res->needs_sync_complete = 1; 5712 scsi_cmd->result |= (DID_IMM_RETRY << 16); 5713 break; 5714 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 5715 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 5716 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 5717 break; 5718 case IPR_IOASC_BUS_WAS_RESET: 5719 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 5720 /* 5721 * Report the bus reset and ask for a retry. The device 5722 * will give CC/UA the next command. 5723 */ 5724 if (!res->resetting_device) 5725 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 5726 scsi_cmd->result |= (DID_ERROR << 16); 5727 if (!ipr_is_naca_model(res)) 5728 res->needs_sync_complete = 1; 5729 break; 5730 case IPR_IOASC_HW_DEV_BUS_STATUS: 5731 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 5732 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 5733 if (!ipr_get_autosense(ipr_cmd)) { 5734 if (!ipr_is_naca_model(res)) { 5735 ipr_erp_cancel_all(ipr_cmd); 5736 return; 5737 } 5738 } 5739 } 5740 if (!ipr_is_naca_model(res)) 5741 res->needs_sync_complete = 1; 5742 break; 5743 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 5744 break; 5745 default: 5746 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 5747 scsi_cmd->result |= (DID_ERROR << 16); 5748 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 5749 res->needs_sync_complete = 1; 5750 break; 5751 } 5752 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} 5757 5758/** 5759 * ipr_scsi_done - mid-layer done function 5760 * @ipr_cmd: ipr command struct 5761 * 5762 * This function is invoked by the interrupt handler for 5763 * ops generated by the SCSI mid-layer 5764 * 5765 * Return value: 5766 * none 5767 **/ 5768static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 5769{ 5770 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5771 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5772 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5773 5774 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); 5775 5776 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 5777 scsi_dma_unmap(ipr_cmd->scsi_cmd); 5778 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5779 scsi_cmd->scsi_done(scsi_cmd); 5780 } else 5781 ipr_erp_start(ioa_cfg, ipr_cmd); 5782} 5783 5784/** 5785 * ipr_queuecommand - Queue a mid-layer request 5786 * @scsi_cmd: scsi command struct 5787 * @done: done function 5788 * 5789 * This function queues a request generated by the mid-layer. 5790 * 5791 * Return value: 5792 * 0 on success 5793 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 5794 * SCSI_MLQUEUE_HOST_BUSY if host is busy 5795 **/ 5796static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd, 5797 void (*done) (struct scsi_cmnd *)) 5798{ 5799 struct ipr_ioa_cfg *ioa_cfg; 5800 struct ipr_resource_entry *res; 5801 struct ipr_ioarcb *ioarcb; 5802 struct ipr_cmnd *ipr_cmd; 5803 int rc = 0; 5804 5805 scsi_cmd->scsi_done = done; 5806 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5807 res = scsi_cmd->device->hostdata; 5808 scsi_cmd->result = (DID_OK << 16); 5809 5810 /* 5811 * We are currently blocking all devices due to a host reset 5812 * We have told the host to stop giving us new requests, but 5813 * ERP ops don't count. FIXME 5814 */ 5815 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) 5816 return SCSI_MLQUEUE_HOST_BUSY; 5817 5818 /* 5819 * FIXME - Create scsi_set_host_offline interface 5820 * and the ioa_is_dead check can be removed 5821 */ 5822 if (unlikely(ioa_cfg->ioa_is_dead || !res)) { 5823 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 5824 scsi_cmd->result = (DID_NO_CONNECT << 16); 5825 scsi_cmd->scsi_done(scsi_cmd); 5826 return 0; 5827 } 5828 5829 if (ipr_is_gata(res) && res->sata_port) 5830 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap); 5831 5832 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5833 ioarcb = &ipr_cmd->ioarcb; 5834 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 5835 5836 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 5837 ipr_cmd->scsi_cmd = scsi_cmd; 5838 ioarcb->res_handle = res->res_handle; 5839 ipr_cmd->done = ipr_scsi_done; 5840 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 5841 5842 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 5843 if (scsi_cmd->underflow == 0) 5844 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 5845 5846 if (res->needs_sync_complete) { 5847 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 5848 res->needs_sync_complete = 0; 5849 } 5850 5851 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 5852 if (ipr_is_gscsi(res)) 5853 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 5854 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 5855 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); 5856 } 5857 5858 if (scsi_cmd->cmnd[0] >= 0xC0 && 5859 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) 5860 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 5861 5862 if (likely(rc == 0)) { 5863 if (ioa_cfg->sis64) 5864 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 5865 else 5866 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 5867 } 5868 5869 if (unlikely(rc != 0)) { 5870 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 5871 return SCSI_MLQUEUE_HOST_BUSY; 5872 } 5873 5874 ipr_send_command(ipr_cmd); 5875 return 0; 5876} 5877 5878static DEF_SCSI_QCMD(ipr_queuecommand) 5879 5880/** 5881 * ipr_ioctl - IOCTL handler 5882 * @sdev: scsi device struct 5883 * @cmd: IOCTL cmd 5884 * @arg: IOCTL arg 5885 * 5886 * Return value: 5887 * 0 on success / other on failure 5888 **/ 5889static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) 5890{ 5891 struct ipr_resource_entry *res; 5892 5893 res = (struct ipr_resource_entry *)sdev->hostdata; 5894 if (res && ipr_is_gata(res)) { 5895 if (cmd == HDIO_GET_IDENTITY) 5896 return -ENOTTY; 5897 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 5898 } 5899 5900 return -EINVAL; 5901} 5902 5903/** 5904 * ipr_info - Get information about the card/driver 5905 * @scsi_host: scsi host struct 5906 * 5907 * Return value: 5908 * pointer to buffer with description string 5909 **/ 5910static const char * ipr_ioa_info(struct Scsi_Host *host) 5911{ 5912 static char buffer[512]; 5913 struct ipr_ioa_cfg *ioa_cfg; 5914 unsigned long lock_flags = 0; 5915 5916 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 5917 5918 spin_lock_irqsave(host->host_lock, lock_flags); 5919 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 5920 spin_unlock_irqrestore(host->host_lock, lock_flags); 5921 5922 return buffer; 5923} 5924 5925static struct scsi_host_template driver_template = { 5926 .module = THIS_MODULE, 5927 .name = "IPR", 5928 .info = ipr_ioa_info, 5929 .ioctl = ipr_ioctl, 5930 .queuecommand = ipr_queuecommand, 5931 .eh_abort_handler = ipr_eh_abort, 5932 .eh_device_reset_handler = ipr_eh_dev_reset, 5933 .eh_host_reset_handler = ipr_eh_host_reset, 5934 .slave_alloc = ipr_slave_alloc, 5935 .slave_configure = ipr_slave_configure, 5936 .slave_destroy = ipr_slave_destroy, 5937 .target_alloc = ipr_target_alloc, 5938 .target_destroy = ipr_target_destroy, 5939 .change_queue_depth = ipr_change_queue_depth, 5940 .change_queue_type = ipr_change_queue_type, 5941 .bios_param = ipr_biosparam, 5942 .can_queue = IPR_MAX_COMMANDS, 5943 .this_id = -1, 5944 .sg_tablesize = IPR_MAX_SGLIST, 5945 .max_sectors = IPR_IOA_MAX_SECTORS, 5946 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 5947 .use_clustering = ENABLE_CLUSTERING, 5948 .shost_attrs = ipr_ioa_attrs, 5949 .sdev_attrs = ipr_dev_attrs, 5950 .proc_name = IPR_NAME 5951}; 5952 5953/** 5954 * ipr_ata_phy_reset - libata phy_reset handler 5955 * @ap: ata port to reset 5956 * 5957 **/ 5958static void ipr_ata_phy_reset(struct ata_port *ap) 5959{ 5960 unsigned long flags; 5961 struct ipr_sata_port *sata_port = ap->private_data; 5962 struct ipr_resource_entry *res = sata_port->res; 5963 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5964 int rc; 5965 5966 ENTER; 5967 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5968 while(ioa_cfg->in_reset_reload) { 5969 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5970 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5971 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 5972 } 5973 5974 if (!ioa_cfg->allow_cmds) 5975 goto out_unlock; 5976 5977 rc = ipr_device_reset(ioa_cfg, res); 5978 5979 if (rc) { 5980 ap->link.device[0].class = ATA_DEV_NONE; 5981 goto out_unlock; 5982 } 5983 5984 ap->link.device[0].class = res->ata_class; 5985 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 5986 ap->link.device[0].class = ATA_DEV_NONE; 5987 5988out_unlock: 5989 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 5990 LEAVE; 5991} 5992 5993/** 5994 * ipr_ata_post_internal - Cleanup after an internal command 5995 * @qc: ATA queued command 5996 * 5997 * Return value: 5998 * none 5999 **/ 6000static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 6001{ 6002 struct ipr_sata_port *sata_port = qc->ap->private_data; 6003 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6004 struct ipr_cmnd *ipr_cmd; 6005 unsigned long flags; 6006 6007 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6008 while(ioa_cfg->in_reset_reload) { 6009 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6010 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 6011 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6012 } 6013 6014 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { 6015 if (ipr_cmd->qc == qc) { 6016 ipr_device_reset(ioa_cfg, sata_port->res); 6017 break; 6018 } 6019 } 6020 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6021} 6022 6023/** 6024 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 6025 * @regs: destination 6026 * @tf: source ATA taskfile 6027 * 6028 * Return value: 6029 * none 6030 **/ 6031static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 6032 struct ata_taskfile *tf) 6033{ 6034 regs->feature = tf->feature; 6035 regs->nsect = tf->nsect; 6036 regs->lbal = tf->lbal; 6037 regs->lbam = tf->lbam; 6038 regs->lbah = tf->lbah; 6039 regs->device = tf->device; 6040 regs->command = tf->command; 6041 regs->hob_feature = tf->hob_feature; 6042 regs->hob_nsect = tf->hob_nsect; 6043 regs->hob_lbal = tf->hob_lbal; 6044 regs->hob_lbam = tf->hob_lbam; 6045 regs->hob_lbah = tf->hob_lbah; 6046 regs->ctl = tf->ctl; 6047} 6048 6049/** 6050 * ipr_sata_done - done function for SATA commands 6051 * @ipr_cmd: ipr command struct 6052 * 6053 * This function is invoked by the interrupt handler for 6054 * ops generated by the SCSI mid-layer to SATA devices 6055 * 6056 * Return value: 6057 * none 6058 **/ 6059static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 6060{ 6061 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6062 struct ata_queued_cmd *qc = ipr_cmd->qc; 6063 struct ipr_sata_port *sata_port = qc->ap->private_data; 6064 struct ipr_resource_entry *res = sata_port->res; 6065 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6066 6067 if (ipr_cmd->ioa_cfg->sis64) 6068 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 6069 sizeof(struct ipr_ioasa_gata)); 6070 else 6071 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 6072 sizeof(struct ipr_ioasa_gata)); 6073 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 6074 6075 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 6076 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 6077 6078 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 6079 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); 6080 else 6081 qc->err_mask |= ac_err_mask(sata_port->ioasa.status); 6082 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6083 ata_qc_complete(qc); 6084} 6085 6086/** 6087 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 6088 * @ipr_cmd: ipr command struct 6089 * @qc: ATA queued command 6090 * 6091 **/ 6092static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 6093 struct ata_queued_cmd *qc) 6094{ 6095 u32 ioadl_flags = 0; 6096 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6097 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 6098 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 6099 int len = qc->nbytes; 6100 struct scatterlist *sg; 6101 unsigned int si; 6102 dma_addr_t dma_addr = ipr_cmd->dma_addr; 6103 6104 if (len == 0) 6105 return; 6106 6107 if (qc->dma_dir == DMA_TO_DEVICE) { 6108 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6109 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6110 } else if (qc->dma_dir == DMA_FROM_DEVICE) 6111 ioadl_flags = IPR_IOADL_FLAGS_READ; 6112 6113 ioarcb->data_transfer_length = cpu_to_be32(len); 6114 ioarcb->ioadl_len = 6115 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 6116 ioarcb->u.sis64_addr_data.data_ioadl_addr = 6117 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); 6118 6119 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6120 ioadl64->flags = cpu_to_be32(ioadl_flags); 6121 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 6122 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 6123 6124 last_ioadl64 = ioadl64; 6125 ioadl64++; 6126 } 6127 6128 if (likely(last_ioadl64)) 6129 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6130} 6131 6132/** 6133 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 6134 * @ipr_cmd: ipr command struct 6135 * @qc: ATA queued command 6136 * 6137 **/ 6138static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 6139 struct ata_queued_cmd *qc) 6140{ 6141 u32 ioadl_flags = 0; 6142 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6143 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 6144 struct ipr_ioadl_desc *last_ioadl = NULL; 6145 int len = qc->nbytes; 6146 struct scatterlist *sg; 6147 unsigned int si; 6148 6149 if (len == 0) 6150 return; 6151 6152 if (qc->dma_dir == DMA_TO_DEVICE) { 6153 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6154 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6155 ioarcb->data_transfer_length = cpu_to_be32(len); 6156 ioarcb->ioadl_len = 6157 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6158 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 6159 ioadl_flags = IPR_IOADL_FLAGS_READ; 6160 ioarcb->read_data_transfer_length = cpu_to_be32(len); 6161 ioarcb->read_ioadl_len = 6162 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6163 } 6164 6165 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6166 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 6167 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 6168 6169 last_ioadl = ioadl; 6170 ioadl++; 6171 } 6172 6173 if (likely(last_ioadl)) 6174 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6175} 6176 6177/** 6178 * ipr_qc_issue - Issue a SATA qc to a device 6179 * @qc: queued command 6180 * 6181 * Return value: 6182 * 0 if success 6183 **/ 6184static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 6185{ 6186 struct ata_port *ap = qc->ap; 6187 struct ipr_sata_port *sata_port = ap->private_data; 6188 struct ipr_resource_entry *res = sata_port->res; 6189 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6190 struct ipr_cmnd *ipr_cmd; 6191 struct ipr_ioarcb *ioarcb; 6192 struct ipr_ioarcb_ata_regs *regs; 6193 6194 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) 6195 return AC_ERR_SYSTEM; 6196 6197 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 6198 ioarcb = &ipr_cmd->ioarcb; 6199 6200 if (ioa_cfg->sis64) { 6201 regs = &ipr_cmd->i.ata_ioadl.regs; 6202 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 6203 } else 6204 regs = &ioarcb->u.add_data.u.regs; 6205 6206 memset(regs, 0, sizeof(*regs)); 6207 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 6208 6209 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 6210 ipr_cmd->qc = qc; 6211 ipr_cmd->done = ipr_sata_done; 6212 ipr_cmd->ioarcb.res_handle = res->res_handle; 6213 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 6214 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 6215 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 6216 ipr_cmd->dma_use_sg = qc->n_elem; 6217 6218 if (ioa_cfg->sis64) 6219 ipr_build_ata_ioadl64(ipr_cmd, qc); 6220 else 6221 ipr_build_ata_ioadl(ipr_cmd, qc); 6222 6223 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 6224 ipr_copy_sata_tf(regs, &qc->tf); 6225 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 6226 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 6227 6228 switch (qc->tf.protocol) { 6229 case ATA_PROT_NODATA: 6230 case ATA_PROT_PIO: 6231 break; 6232 6233 case ATA_PROT_DMA: 6234 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6235 break; 6236 6237 case ATAPI_PROT_PIO: 6238 case ATAPI_PROT_NODATA: 6239 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6240 break; 6241 6242 case ATAPI_PROT_DMA: 6243 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 6244 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 6245 break; 6246 6247 default: 6248 WARN_ON(1); 6249 return AC_ERR_INVALID; 6250 } 6251 6252 ipr_send_command(ipr_cmd); 6253 6254 return 0; 6255} 6256 6257/** 6258 * ipr_qc_fill_rtf - Read result TF 6259 * @qc: ATA queued command 6260 * 6261 * Return value: 6262 * true 6263 **/ 6264static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 6265{ 6266 struct ipr_sata_port *sata_port = qc->ap->private_data; 6267 struct ipr_ioasa_gata *g = &sata_port->ioasa; 6268 struct ata_taskfile *tf = &qc->result_tf; 6269 6270 tf->feature = g->error; 6271 tf->nsect = g->nsect; 6272 tf->lbal = g->lbal; 6273 tf->lbam = g->lbam; 6274 tf->lbah = g->lbah; 6275 tf->device = g->device; 6276 tf->command = g->status; 6277 tf->hob_nsect = g->hob_nsect; 6278 tf->hob_lbal = g->hob_lbal; 6279 tf->hob_lbam = g->hob_lbam; 6280 tf->hob_lbah = g->hob_lbah; 6281 tf->ctl = g->alt_status; 6282 6283 return true; 6284} 6285 6286static struct ata_port_operations ipr_sata_ops = { 6287 .phy_reset = ipr_ata_phy_reset, 6288 .hardreset = ipr_sata_reset, 6289 .post_internal_cmd = ipr_ata_post_internal, 6290 .qc_prep = ata_noop_qc_prep, 6291 .qc_issue = ipr_qc_issue, 6292 .qc_fill_rtf = ipr_qc_fill_rtf, 6293 .port_start = ata_sas_port_start, 6294 .port_stop = ata_sas_port_stop 6295}; 6296 6297static struct ata_port_info sata_port_info = { 6298 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA, 6299 .pio_mask = ATA_PIO4_ONLY, 6300 .mwdma_mask = ATA_MWDMA2, 6301 .udma_mask = ATA_UDMA6, 6302 .port_ops = &ipr_sata_ops 6303}; 6304 6305#ifdef CONFIG_PPC_PSERIES 6306static const u16 ipr_blocked_processors[] = { 6307 PV_NORTHSTAR, 6308 PV_PULSAR, 6309 PV_POWER4, 6310 PV_ICESTAR, 6311 PV_SSTAR, 6312 PV_POWER4p, 6313 PV_630, 6314 PV_630p 6315}; 6316 6317/** 6318 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 6319 * @ioa_cfg: ioa cfg struct 6320 * 6321 * Adapters that use Gemstone revision < 3.1 do not work reliably on 6322 * certain pSeries hardware. This function determines if the given 6323 * adapter is in one of these confgurations or not. 6324 * 6325 * Return value: 6326 * 1 if adapter is not supported / 0 if adapter is supported 6327 **/ 6328static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 6329{ 6330 int i; 6331 6332 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 6333 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ 6334 if (__is_processor(ipr_blocked_processors[i])) 6335 return 1; 6336 } 6337 } 6338 return 0; 6339} 6340#else 6341#define ipr_invalid_adapter(ioa_cfg) 0 6342#endif 6343 6344/** 6345 * ipr_ioa_bringdown_done - IOA bring down completion. 6346 * @ipr_cmd: ipr command struct 6347 * 6348 * This function processes the completion of an adapter bring down. 6349 * It wakes any reset sleepers. 6350 * 6351 * Return value: 6352 * IPR_RC_JOB_RETURN 6353 **/ 6354static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 6355{ 6356 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6357 6358 ENTER; 6359 ioa_cfg->in_reset_reload = 0; 6360 ioa_cfg->reset_retries = 0; 6361 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6362 wake_up_all(&ioa_cfg->reset_wait_q); 6363 6364 spin_unlock_irq(ioa_cfg->host->host_lock); 6365 scsi_unblock_requests(ioa_cfg->host); 6366 spin_lock_irq(ioa_cfg->host->host_lock); 6367 LEAVE; 6368 6369 return IPR_RC_JOB_RETURN; 6370} 6371 6372/** 6373 * ipr_ioa_reset_done - IOA reset completion. 6374 * @ipr_cmd: ipr command struct 6375 * 6376 * This function processes the completion of an adapter reset. 6377 * It schedules any necessary mid-layer add/removes and 6378 * wakes any reset sleepers. 6379 * 6380 * Return value: 6381 * IPR_RC_JOB_RETURN 6382 **/ 6383static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 6384{ 6385 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6386 struct ipr_resource_entry *res; 6387 struct ipr_hostrcb *hostrcb, *temp; 6388 int i = 0; 6389 6390 ENTER; 6391 ioa_cfg->in_reset_reload = 0; 6392 ioa_cfg->allow_cmds = 1; 6393 ioa_cfg->reset_cmd = NULL; 6394 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 6395 6396 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 6397 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { 6398 ipr_trace; 6399 break; 6400 } 6401 } 6402 schedule_work(&ioa_cfg->work_q); 6403 6404 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { 6405 list_del(&hostrcb->queue); 6406 if (i++ < IPR_NUM_LOG_HCAMS) 6407 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 6408 else 6409 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 6410 } 6411 6412 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 6413 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 6414 6415 ioa_cfg->reset_retries = 0; 6416 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6417 wake_up_all(&ioa_cfg->reset_wait_q); 6418 6419 spin_unlock(ioa_cfg->host->host_lock); 6420 scsi_unblock_requests(ioa_cfg->host); 6421 spin_lock(ioa_cfg->host->host_lock); 6422 6423 if (!ioa_cfg->allow_cmds) 6424 scsi_block_requests(ioa_cfg->host); 6425 6426 LEAVE; 6427 return IPR_RC_JOB_RETURN; 6428} 6429 6430/** 6431 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 6432 * @supported_dev: supported device struct 6433 * @vpids: vendor product id struct 6434 * 6435 * Return value: 6436 * none 6437 **/ 6438static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 6439 struct ipr_std_inq_vpids *vpids) 6440{ 6441 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 6442 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 6443 supported_dev->num_records = 1; 6444 supported_dev->data_length = 6445 cpu_to_be16(sizeof(struct ipr_supported_device)); 6446 supported_dev->reserved = 0; 6447} 6448 6449/** 6450 * ipr_set_supported_devs - Send Set Supported Devices for a device 6451 * @ipr_cmd: ipr command struct 6452 * 6453 * This function sends a Set Supported Devices to the adapter 6454 * 6455 * Return value: 6456 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6457 **/ 6458static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 6459{ 6460 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6461 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 6462 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6463 struct ipr_resource_entry *res = ipr_cmd->u.res; 6464 6465 ipr_cmd->job_step = ipr_ioa_reset_done; 6466 6467 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 6468 if (!ipr_is_scsi_disk(res)) 6469 continue; 6470 6471 ipr_cmd->u.res = res; 6472 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 6473 6474 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 6475 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6476 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6477 6478 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 6479 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 6480 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 6481 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 6482 6483 ipr_init_ioadl(ipr_cmd, 6484 ioa_cfg->vpd_cbs_dma + 6485 offsetof(struct ipr_misc_cbs, supp_dev), 6486 sizeof(struct ipr_supported_device), 6487 IPR_IOADL_FLAGS_WRITE_LAST); 6488 6489 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 6490 IPR_SET_SUP_DEVICE_TIMEOUT); 6491 6492 if (!ioa_cfg->sis64) 6493 ipr_cmd->job_step = ipr_set_supported_devs; 6494 return IPR_RC_JOB_RETURN; 6495 } 6496 6497 return IPR_RC_JOB_CONTINUE; 6498} 6499 6500/** 6501 * ipr_get_mode_page - Locate specified mode page 6502 * @mode_pages: mode page buffer 6503 * @page_code: page code to find 6504 * @len: minimum required length for mode page 6505 * 6506 * Return value: 6507 * pointer to mode page / NULL on failure 6508 **/ 6509static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 6510 u32 page_code, u32 len) 6511{ 6512 struct ipr_mode_page_hdr *mode_hdr; 6513 u32 page_length; 6514 u32 length; 6515 6516 if (!mode_pages || (mode_pages->hdr.length == 0)) 6517 return NULL; 6518 6519 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 6520 mode_hdr = (struct ipr_mode_page_hdr *) 6521 (mode_pages->data + mode_pages->hdr.block_desc_len); 6522 6523 while (length) { 6524 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 6525 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 6526 return mode_hdr; 6527 break; 6528 } else { 6529 page_length = (sizeof(struct ipr_mode_page_hdr) + 6530 mode_hdr->page_length); 6531 length -= page_length; 6532 mode_hdr = (struct ipr_mode_page_hdr *) 6533 ((unsigned long)mode_hdr + page_length); 6534 } 6535 } 6536 return NULL; 6537} 6538 6539/** 6540 * ipr_check_term_power - Check for term power errors 6541 * @ioa_cfg: ioa config struct 6542 * @mode_pages: IOAFP mode pages buffer 6543 * 6544 * Check the IOAFP's mode page 28 for term power errors 6545 * 6546 * Return value: 6547 * nothing 6548 **/ 6549static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 6550 struct ipr_mode_pages *mode_pages) 6551{ 6552 int i; 6553 int entry_length; 6554 struct ipr_dev_bus_entry *bus; 6555 struct ipr_mode_page28 *mode_page; 6556 6557 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6558 sizeof(struct ipr_mode_page28)); 6559 6560 entry_length = mode_page->entry_length; 6561 6562 bus = mode_page->bus; 6563 6564 for (i = 0; i < mode_page->num_entries; i++) { 6565 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 6566 dev_err(&ioa_cfg->pdev->dev, 6567 "Term power is absent on scsi bus %d\n", 6568 bus->res_addr.bus); 6569 } 6570 6571 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 6572 } 6573} 6574 6575/** 6576 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 6577 * @ioa_cfg: ioa config struct 6578 * 6579 * Looks through the config table checking for SES devices. If 6580 * the SES device is in the SES table indicating a maximum SCSI 6581 * bus speed, the speed is limited for the bus. 6582 * 6583 * Return value: 6584 * none 6585 **/ 6586static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 6587{ 6588 u32 max_xfer_rate; 6589 int i; 6590 6591 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 6592 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 6593 ioa_cfg->bus_attr[i].bus_width); 6594 6595 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 6596 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 6597 } 6598} 6599 6600/** 6601 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 6602 * @ioa_cfg: ioa config struct 6603 * @mode_pages: mode page 28 buffer 6604 * 6605 * Updates mode page 28 based on driver configuration 6606 * 6607 * Return value: 6608 * none 6609 **/ 6610static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 6611 struct ipr_mode_pages *mode_pages) 6612{ 6613 int i, entry_length; 6614 struct ipr_dev_bus_entry *bus; 6615 struct ipr_bus_attributes *bus_attr; 6616 struct ipr_mode_page28 *mode_page; 6617 6618 mode_page = ipr_get_mode_page(mode_pages, 0x28, 6619 sizeof(struct ipr_mode_page28)); 6620 6621 entry_length = mode_page->entry_length; 6622 6623 /* Loop for each device bus entry */ 6624 for (i = 0, bus = mode_page->bus; 6625 i < mode_page->num_entries; 6626 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 6627 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 6628 dev_err(&ioa_cfg->pdev->dev, 6629 "Invalid resource address reported: 0x%08X\n", 6630 IPR_GET_PHYS_LOC(bus->res_addr)); 6631 continue; 6632 } 6633 6634 bus_attr = &ioa_cfg->bus_attr[i]; 6635 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 6636 bus->bus_width = bus_attr->bus_width; 6637 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 6638 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 6639 if (bus_attr->qas_enabled) 6640 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 6641 else 6642 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 6643 } 6644} 6645 6646/** 6647 * ipr_build_mode_select - Build a mode select command 6648 * @ipr_cmd: ipr command struct 6649 * @res_handle: resource handle to send command to 6650 * @parm: Byte 2 of Mode Sense command 6651 * @dma_addr: DMA buffer address 6652 * @xfer_len: data transfer length 6653 * 6654 * Return value: 6655 * none 6656 **/ 6657static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 6658 __be32 res_handle, u8 parm, 6659 dma_addr_t dma_addr, u8 xfer_len) 6660{ 6661 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6662 6663 ioarcb->res_handle = res_handle; 6664 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6665 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6666 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 6667 ioarcb->cmd_pkt.cdb[1] = parm; 6668 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6669 6670 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 6671} 6672 6673/** 6674 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 6675 * @ipr_cmd: ipr command struct 6676 * 6677 * This function sets up the SCSI bus attributes and sends 6678 * a Mode Select for Page 28 to activate them. 6679 * 6680 * Return value: 6681 * IPR_RC_JOB_RETURN 6682 **/ 6683static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 6684{ 6685 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6686 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6687 int length; 6688 6689 ENTER; 6690 ipr_scsi_bus_speed_limit(ioa_cfg); 6691 ipr_check_term_power(ioa_cfg, mode_pages); 6692 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 6693 length = mode_pages->hdr.length + 1; 6694 mode_pages->hdr.length = 0; 6695 6696 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6697 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6698 length); 6699 6700 ipr_cmd->job_step = ipr_set_supported_devs; 6701 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6702 struct ipr_resource_entry, queue); 6703 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6704 6705 LEAVE; 6706 return IPR_RC_JOB_RETURN; 6707} 6708 6709/** 6710 * ipr_build_mode_sense - Builds a mode sense command 6711 * @ipr_cmd: ipr command struct 6712 * @res: resource entry struct 6713 * @parm: Byte 2 of mode sense command 6714 * @dma_addr: DMA address of mode sense buffer 6715 * @xfer_len: Size of DMA buffer 6716 * 6717 * Return value: 6718 * none 6719 **/ 6720static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 6721 __be32 res_handle, 6722 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 6723{ 6724 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6725 6726 ioarcb->res_handle = res_handle; 6727 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 6728 ioarcb->cmd_pkt.cdb[2] = parm; 6729 ioarcb->cmd_pkt.cdb[4] = xfer_len; 6730 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 6731 6732 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 6733} 6734 6735/** 6736 * ipr_reset_cmd_failed - Handle failure of IOA reset command 6737 * @ipr_cmd: ipr command struct 6738 * 6739 * This function handles the failure of an IOA bringup command. 6740 * 6741 * Return value: 6742 * IPR_RC_JOB_RETURN 6743 **/ 6744static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 6745{ 6746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6747 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6748 6749 dev_err(&ioa_cfg->pdev->dev, 6750 "0x%02X failed with IOASC: 0x%08X\n", 6751 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 6752 6753 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 6754 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 6755 return IPR_RC_JOB_RETURN; 6756} 6757 6758/** 6759 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 6760 * @ipr_cmd: ipr command struct 6761 * 6762 * This function handles the failure of a Mode Sense to the IOAFP. 6763 * Some adapters do not handle all mode pages. 6764 * 6765 * Return value: 6766 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6767 **/ 6768static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 6769{ 6770 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6771 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6772 6773 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6774 ipr_cmd->job_step = ipr_set_supported_devs; 6775 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 6776 struct ipr_resource_entry, queue); 6777 return IPR_RC_JOB_CONTINUE; 6778 } 6779 6780 return ipr_reset_cmd_failed(ipr_cmd); 6781} 6782 6783/** 6784 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 6785 * @ipr_cmd: ipr command struct 6786 * 6787 * This function send a Page 28 mode sense to the IOA to 6788 * retrieve SCSI bus attributes. 6789 * 6790 * Return value: 6791 * IPR_RC_JOB_RETURN 6792 **/ 6793static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 6794{ 6795 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6796 6797 ENTER; 6798 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6799 0x28, ioa_cfg->vpd_cbs_dma + 6800 offsetof(struct ipr_misc_cbs, mode_pages), 6801 sizeof(struct ipr_mode_pages)); 6802 6803 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 6804 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 6805 6806 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6807 6808 LEAVE; 6809 return IPR_RC_JOB_RETURN; 6810} 6811 6812/** 6813 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 6814 * @ipr_cmd: ipr command struct 6815 * 6816 * This function enables dual IOA RAID support if possible. 6817 * 6818 * Return value: 6819 * IPR_RC_JOB_RETURN 6820 **/ 6821static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 6822{ 6823 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6824 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 6825 struct ipr_mode_page24 *mode_page; 6826 int length; 6827 6828 ENTER; 6829 mode_page = ipr_get_mode_page(mode_pages, 0x24, 6830 sizeof(struct ipr_mode_page24)); 6831 6832 if (mode_page) 6833 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 6834 6835 length = mode_pages->hdr.length + 1; 6836 mode_pages->hdr.length = 0; 6837 6838 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 6839 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 6840 length); 6841 6842 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6843 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6844 6845 LEAVE; 6846 return IPR_RC_JOB_RETURN; 6847} 6848 6849/** 6850 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 6851 * @ipr_cmd: ipr command struct 6852 * 6853 * This function handles the failure of a Mode Sense to the IOAFP. 6854 * Some adapters do not handle all mode pages. 6855 * 6856 * Return value: 6857 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 6858 **/ 6859static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 6860{ 6861 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6862 6863 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 6864 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6865 return IPR_RC_JOB_CONTINUE; 6866 } 6867 6868 return ipr_reset_cmd_failed(ipr_cmd); 6869} 6870 6871/** 6872 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 6873 * @ipr_cmd: ipr command struct 6874 * 6875 * This function send a mode sense to the IOA to retrieve 6876 * the IOA Advanced Function Control mode page. 6877 * 6878 * Return value: 6879 * IPR_RC_JOB_RETURN 6880 **/ 6881static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 6882{ 6883 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6884 6885 ENTER; 6886 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 6887 0x24, ioa_cfg->vpd_cbs_dma + 6888 offsetof(struct ipr_misc_cbs, mode_pages), 6889 sizeof(struct ipr_mode_pages)); 6890 6891 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 6892 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 6893 6894 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 6895 6896 LEAVE; 6897 return IPR_RC_JOB_RETURN; 6898} 6899 6900/** 6901 * ipr_init_res_table - Initialize the resource table 6902 * @ipr_cmd: ipr command struct 6903 * 6904 * This function looks through the existing resource table, comparing 6905 * it with the config table. This function will take care of old/new 6906 * devices and schedule adding/removing them from the mid-layer 6907 * as appropriate. 6908 * 6909 * Return value: 6910 * IPR_RC_JOB_CONTINUE 6911 **/ 6912static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 6913{ 6914 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6915 struct ipr_resource_entry *res, *temp; 6916 struct ipr_config_table_entry_wrapper cfgtew; 6917 int entries, found, flag, i; 6918 LIST_HEAD(old_res); 6919 6920 ENTER; 6921 if (ioa_cfg->sis64) 6922 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 6923 else 6924 flag = ioa_cfg->u.cfg_table->hdr.flags; 6925 6926 if (flag & IPR_UCODE_DOWNLOAD_REQ) 6927 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 6928 6929 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 6930 list_move_tail(&res->queue, &old_res); 6931 6932 if (ioa_cfg->sis64) 6933 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); 6934 else 6935 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 6936 6937 for (i = 0; i < entries; i++) { 6938 if (ioa_cfg->sis64) 6939 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 6940 else 6941 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 6942 found = 0; 6943 6944 list_for_each_entry_safe(res, temp, &old_res, queue) { 6945 if (ipr_is_same_device(res, &cfgtew)) { 6946 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6947 found = 1; 6948 break; 6949 } 6950 } 6951 6952 if (!found) { 6953 if (list_empty(&ioa_cfg->free_res_q)) { 6954 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 6955 break; 6956 } 6957 6958 found = 1; 6959 res = list_entry(ioa_cfg->free_res_q.next, 6960 struct ipr_resource_entry, queue); 6961 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6962 ipr_init_res_entry(res, &cfgtew); 6963 res->add_to_ml = 1; 6964 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) 6965 res->sdev->allow_restart = 1; 6966 6967 if (found) 6968 ipr_update_res_entry(res, &cfgtew); 6969 } 6970 6971 list_for_each_entry_safe(res, temp, &old_res, queue) { 6972 if (res->sdev) { 6973 res->del_from_ml = 1; 6974 res->res_handle = IPR_INVALID_RES_HANDLE; 6975 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 6976 } 6977 } 6978 6979 list_for_each_entry_safe(res, temp, &old_res, queue) { 6980 ipr_clear_res_target(res); 6981 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 6982 } 6983 6984 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 6985 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 6986 else 6987 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 6988 6989 LEAVE; 6990 return IPR_RC_JOB_CONTINUE; 6991} 6992 6993/** 6994 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 6995 * @ipr_cmd: ipr command struct 6996 * 6997 * This function sends a Query IOA Configuration command 6998 * to the adapter to retrieve the IOA configuration table. 6999 * 7000 * Return value: 7001 * IPR_RC_JOB_RETURN 7002 **/ 7003static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 7004{ 7005 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7006 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7007 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 7008 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 7009 7010 ENTER; 7011 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 7012 ioa_cfg->dual_raid = 1; 7013 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 7014 ucode_vpd->major_release, ucode_vpd->card_type, 7015 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 7016 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7017 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7018 7019 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 7020 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; 7021 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 7022 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 7023 7024 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 7025 IPR_IOADL_FLAGS_READ_LAST); 7026 7027 ipr_cmd->job_step = ipr_init_res_table; 7028 7029 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7030 7031 LEAVE; 7032 return IPR_RC_JOB_RETURN; 7033} 7034 7035/** 7036 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 7037 * @ipr_cmd: ipr command struct 7038 * 7039 * This utility function sends an inquiry to the adapter. 7040 * 7041 * Return value: 7042 * none 7043 **/ 7044static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 7045 dma_addr_t dma_addr, u8 xfer_len) 7046{ 7047 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7048 7049 ENTER; 7050 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7051 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7052 7053 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 7054 ioarcb->cmd_pkt.cdb[1] = flags; 7055 ioarcb->cmd_pkt.cdb[2] = page; 7056 ioarcb->cmd_pkt.cdb[4] = xfer_len; 7057 7058 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 7059 7060 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7061 LEAVE; 7062} 7063 7064/** 7065 * ipr_inquiry_page_supported - Is the given inquiry page supported 7066 * @page0: inquiry page 0 buffer 7067 * @page: page code. 7068 * 7069 * This function determines if the specified inquiry page is supported. 7070 * 7071 * Return value: 7072 * 1 if page is supported / 0 if not 7073 **/ 7074static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 7075{ 7076 int i; 7077 7078 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 7079 if (page0->page[i] == page) 7080 return 1; 7081 7082 return 0; 7083} 7084 7085/** 7086 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 7087 * @ipr_cmd: ipr command struct 7088 * 7089 * This function sends a Page 0xD0 inquiry to the adapter 7090 * to retrieve adapter capabilities. 7091 * 7092 * Return value: 7093 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7094 **/ 7095static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 7096{ 7097 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7098 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 7099 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 7100 7101 ENTER; 7102 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 7103 memset(cap, 0, sizeof(*cap)); 7104 7105 if (ipr_inquiry_page_supported(page0, 0xD0)) { 7106 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 7107 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 7108 sizeof(struct ipr_inquiry_cap)); 7109 return IPR_RC_JOB_RETURN; 7110 } 7111 7112 LEAVE; 7113 return IPR_RC_JOB_CONTINUE; 7114} 7115 7116/** 7117 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 7118 * @ipr_cmd: ipr command struct 7119 * 7120 * This function sends a Page 3 inquiry to the adapter 7121 * to retrieve software VPD information. 7122 * 7123 * Return value: 7124 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7125 **/ 7126static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 7127{ 7128 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7129 7130 ENTER; 7131 7132 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 7133 7134 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 7135 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 7136 sizeof(struct ipr_inquiry_page3)); 7137 7138 LEAVE; 7139 return IPR_RC_JOB_RETURN; 7140} 7141 7142/** 7143 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 7144 * @ipr_cmd: ipr command struct 7145 * 7146 * This function sends a Page 0 inquiry to the adapter 7147 * to retrieve supported inquiry pages. 7148 * 7149 * Return value: 7150 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7151 **/ 7152static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 7153{ 7154 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7155 char type[5]; 7156 7157 ENTER; 7158 7159 /* Grab the type out of the VPD and store it away */ 7160 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 7161 type[4] = '\0'; 7162 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 7163 7164 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 7165 7166 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 7167 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 7168 sizeof(struct ipr_inquiry_page0)); 7169 7170 LEAVE; 7171 return IPR_RC_JOB_RETURN; 7172} 7173 7174/** 7175 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 7176 * @ipr_cmd: ipr command struct 7177 * 7178 * This function sends a standard inquiry to the adapter. 7179 * 7180 * Return value: 7181 * IPR_RC_JOB_RETURN 7182 **/ 7183static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 7184{ 7185 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7186 7187 ENTER; 7188 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 7189 7190 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 7191 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 7192 sizeof(struct ipr_ioa_vpd)); 7193 7194 LEAVE; 7195 return IPR_RC_JOB_RETURN; 7196} 7197 7198/** 7199 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 7200 * @ipr_cmd: ipr command struct 7201 * 7202 * This function send an Identify Host Request Response Queue 7203 * command to establish the HRRQ with the adapter. 7204 * 7205 * Return value: 7206 * IPR_RC_JOB_RETURN 7207 **/ 7208static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 7209{ 7210 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7211 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7212 7213 ENTER; 7214 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 7215 7216 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 7217 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7218 7219 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7220 if (ioa_cfg->sis64) 7221 ioarcb->cmd_pkt.cdb[1] = 0x1; 7222 ioarcb->cmd_pkt.cdb[2] = 7223 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; 7224 ioarcb->cmd_pkt.cdb[3] = 7225 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; 7226 ioarcb->cmd_pkt.cdb[4] = 7227 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; 7228 ioarcb->cmd_pkt.cdb[5] = 7229 ((u64) ioa_cfg->host_rrq_dma) & 0xff; 7230 ioarcb->cmd_pkt.cdb[7] = 7231 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; 7232 ioarcb->cmd_pkt.cdb[8] = 7233 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; 7234 7235 if (ioa_cfg->sis64) { 7236 ioarcb->cmd_pkt.cdb[10] = 7237 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; 7238 ioarcb->cmd_pkt.cdb[11] = 7239 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; 7240 ioarcb->cmd_pkt.cdb[12] = 7241 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; 7242 ioarcb->cmd_pkt.cdb[13] = 7243 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; 7244 } 7245 7246 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 7247 7248 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7249 7250 LEAVE; 7251 return IPR_RC_JOB_RETURN; 7252} 7253 7254/** 7255 * ipr_reset_timer_done - Adapter reset timer function 7256 * @ipr_cmd: ipr command struct 7257 * 7258 * Description: This function is used in adapter reset processing 7259 * for timing events. If the reset_cmd pointer in the IOA 7260 * config struct is not this adapter's we are doing nested 7261 * resets and fail_all_ops will take care of freeing the 7262 * command block. 7263 * 7264 * Return value: 7265 * none 7266 **/ 7267static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) 7268{ 7269 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7270 unsigned long lock_flags = 0; 7271 7272 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 7273 7274 if (ioa_cfg->reset_cmd == ipr_cmd) { 7275 list_del(&ipr_cmd->queue); 7276 ipr_cmd->done(ipr_cmd); 7277 } 7278 7279 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 7280} 7281 7282/** 7283 * ipr_reset_start_timer - Start a timer for adapter reset job 7284 * @ipr_cmd: ipr command struct 7285 * @timeout: timeout value 7286 * 7287 * Description: This function is used in adapter reset processing 7288 * for timing events. If the reset_cmd pointer in the IOA 7289 * config struct is not this adapter's we are doing nested 7290 * resets and fail_all_ops will take care of freeing the 7291 * command block. 7292 * 7293 * Return value: 7294 * none 7295 **/ 7296static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 7297 unsigned long timeout) 7298{ 7299 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 7300 ipr_cmd->done = ipr_reset_ioa_job; 7301 7302 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7303 ipr_cmd->timer.expires = jiffies + timeout; 7304 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; 7305 add_timer(&ipr_cmd->timer); 7306} 7307 7308/** 7309 * ipr_init_ioa_mem - Initialize ioa_cfg control block 7310 * @ioa_cfg: ioa cfg struct 7311 * 7312 * Return value: 7313 * nothing 7314 **/ 7315static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 7316{ 7317 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); 7318 7319 /* Initialize Host RRQ pointers */ 7320 ioa_cfg->hrrq_start = ioa_cfg->host_rrq; 7321 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; 7322 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; 7323 ioa_cfg->toggle_bit = 1; 7324 7325 /* Zero out config table */ 7326 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 7327} 7328 7329/** 7330 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 7331 * @ipr_cmd: ipr command struct 7332 * 7333 * Return value: 7334 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7335 **/ 7336static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 7337{ 7338 unsigned long stage, stage_time; 7339 u32 feedback; 7340 volatile u32 int_reg; 7341 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7342 u64 maskval = 0; 7343 7344 feedback = readl(ioa_cfg->regs.init_feedback_reg); 7345 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 7346 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 7347 7348 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 7349 7350 /* sanity check the stage_time value */ 7351 if (stage_time == 0) 7352 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; 7353 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 7354 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 7355 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 7356 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 7357 7358 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 7359 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 7360 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7361 stage_time = ioa_cfg->transop_timeout; 7362 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7363 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 7364 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 7365 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7366 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7367 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7368 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 7369 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 7370 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7371 return IPR_RC_JOB_CONTINUE; 7372 } 7373 } 7374 7375 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7376 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 7377 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7378 ipr_cmd->done = ipr_reset_ioa_job; 7379 add_timer(&ipr_cmd->timer); 7380 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7381 7382 return IPR_RC_JOB_RETURN; 7383} 7384 7385/** 7386 * ipr_reset_enable_ioa - Enable the IOA following a reset. 7387 * @ipr_cmd: ipr command struct 7388 * 7389 * This function reinitializes some control blocks and 7390 * enables destructive diagnostics on the adapter. 7391 * 7392 * Return value: 7393 * IPR_RC_JOB_RETURN 7394 **/ 7395static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 7396{ 7397 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7398 volatile u32 int_reg; 7399 volatile u64 maskval; 7400 7401 ENTER; 7402 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 7403 ipr_init_ioa_mem(ioa_cfg); 7404 7405 ioa_cfg->allow_interrupts = 1; 7406 if (ioa_cfg->sis64) { 7407 /* Set the adapter to the correct endian mode. */ 7408 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 7409 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 7410 } 7411 7412 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 7413 7414 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 7415 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 7416 ioa_cfg->regs.clr_interrupt_mask_reg32); 7417 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7418 return IPR_RC_JOB_CONTINUE; 7419 } 7420 7421 /* Enable destructive diagnostics on IOA */ 7422 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 7423 7424 if (ioa_cfg->sis64) { 7425 maskval = IPR_PCII_IPL_STAGE_CHANGE; 7426 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; 7427 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); 7428 } else 7429 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 7430 7431 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 7432 7433 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 7434 7435 if (ioa_cfg->sis64) { 7436 ipr_cmd->job_step = ipr_reset_next_stage; 7437 return IPR_RC_JOB_CONTINUE; 7438 } 7439 7440 ipr_cmd->timer.data = (unsigned long) ipr_cmd; 7441 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 7442 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; 7443 ipr_cmd->done = ipr_reset_ioa_job; 7444 add_timer(&ipr_cmd->timer); 7445 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); 7446 7447 LEAVE; 7448 return IPR_RC_JOB_RETURN; 7449} 7450 7451/** 7452 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 7453 * @ipr_cmd: ipr command struct 7454 * 7455 * This function is invoked when an adapter dump has run out 7456 * of processing time. 7457 * 7458 * Return value: 7459 * IPR_RC_JOB_CONTINUE 7460 **/ 7461static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 7462{ 7463 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7464 7465 if (ioa_cfg->sdt_state == GET_DUMP) 7466 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7467 else if (ioa_cfg->sdt_state == READ_DUMP) 7468 ioa_cfg->sdt_state = ABORT_DUMP; 7469 7470 ioa_cfg->dump_timeout = 1; 7471 ipr_cmd->job_step = ipr_reset_alert; 7472 7473 return IPR_RC_JOB_CONTINUE; 7474} 7475 7476/** 7477 * ipr_unit_check_no_data - Log a unit check/no data error log 7478 * @ioa_cfg: ioa config struct 7479 * 7480 * Logs an error indicating the adapter unit checked, but for some 7481 * reason, we were unable to fetch the unit check buffer. 7482 * 7483 * Return value: 7484 * nothing 7485 **/ 7486static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 7487{ 7488 ioa_cfg->errors_logged++; 7489 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 7490} 7491 7492/** 7493 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 7494 * @ioa_cfg: ioa config struct 7495 * 7496 * Fetches the unit check buffer from the adapter by clocking the data 7497 * through the mailbox register. 7498 * 7499 * Return value: 7500 * nothing 7501 **/ 7502static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 7503{ 7504 unsigned long mailbox; 7505 struct ipr_hostrcb *hostrcb; 7506 struct ipr_uc_sdt sdt; 7507 int rc, length; 7508 u32 ioasc; 7509 7510 mailbox = readl(ioa_cfg->ioa_mailbox); 7511 7512 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 7513 ipr_unit_check_no_data(ioa_cfg); 7514 return; 7515 } 7516 7517 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 7518 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 7519 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 7520 7521 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 7522 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 7523 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 7524 ipr_unit_check_no_data(ioa_cfg); 7525 return; 7526 } 7527 7528 /* Find length of the first sdt entry (UC buffer) */ 7529 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 7530 length = be32_to_cpu(sdt.entry[0].end_token); 7531 else 7532 length = (be32_to_cpu(sdt.entry[0].end_token) - 7533 be32_to_cpu(sdt.entry[0].start_token)) & 7534 IPR_FMT2_MBX_ADDR_MASK; 7535 7536 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 7537 struct ipr_hostrcb, queue); 7538 list_del(&hostrcb->queue); 7539 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 7540 7541 rc = ipr_get_ldump_data_section(ioa_cfg, 7542 be32_to_cpu(sdt.entry[0].start_token), 7543 (__be32 *)&hostrcb->hcam, 7544 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 7545 7546 if (!rc) { 7547 ipr_handle_log_data(ioa_cfg, hostrcb); 7548 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 7549 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 7550 ioa_cfg->sdt_state == GET_DUMP) 7551 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 7552 } else 7553 ipr_unit_check_no_data(ioa_cfg); 7554 7555 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 7556} 7557 7558/** 7559 * ipr_reset_get_unit_check_job - Call to get the unit check buffer. 7560 * @ipr_cmd: ipr command struct 7561 * 7562 * Description: This function will call to get the unit check buffer. 7563 * 7564 * Return value: 7565 * IPR_RC_JOB_RETURN 7566 **/ 7567static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) 7568{ 7569 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7570 7571 ENTER; 7572 ioa_cfg->ioa_unit_checked = 0; 7573 ipr_get_unit_check_buffer(ioa_cfg); 7574 ipr_cmd->job_step = ipr_reset_alert; 7575 ipr_reset_start_timer(ipr_cmd, 0); 7576 7577 LEAVE; 7578 return IPR_RC_JOB_RETURN; 7579} 7580 7581/** 7582 * ipr_reset_restore_cfg_space - Restore PCI config space. 7583 * @ipr_cmd: ipr command struct 7584 * 7585 * Description: This function restores the saved PCI config space of 7586 * the adapter, fails all outstanding ops back to the callers, and 7587 * fetches the dump/unit check if applicable to this reset. 7588 * 7589 * Return value: 7590 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7591 **/ 7592static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 7593{ 7594 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7595 u32 int_reg; 7596 7597 ENTER; 7598 ioa_cfg->pdev->state_saved = true; 7599 pci_restore_state(ioa_cfg->pdev); 7600 7601 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 7602 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7603 return IPR_RC_JOB_CONTINUE; 7604 } 7605 7606 ipr_fail_all_ops(ioa_cfg); 7607 7608 if (ioa_cfg->sis64) { 7609 /* Set the adapter to the correct endian mode. */ 7610 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 7611 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 7612 } 7613 7614 if (ioa_cfg->ioa_unit_checked) { 7615 if (ioa_cfg->sis64) { 7616 ipr_cmd->job_step = ipr_reset_get_unit_check_job; 7617 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); 7618 return IPR_RC_JOB_RETURN; 7619 } else { 7620 ioa_cfg->ioa_unit_checked = 0; 7621 ipr_get_unit_check_buffer(ioa_cfg); 7622 ipr_cmd->job_step = ipr_reset_alert; 7623 ipr_reset_start_timer(ipr_cmd, 0); 7624 return IPR_RC_JOB_RETURN; 7625 } 7626 } 7627 7628 if (ioa_cfg->in_ioa_bringdown) { 7629 ipr_cmd->job_step = ipr_ioa_bringdown_done; 7630 } else { 7631 ipr_cmd->job_step = ipr_reset_enable_ioa; 7632 7633 if (GET_DUMP == ioa_cfg->sdt_state) { 7634 ioa_cfg->sdt_state = READ_DUMP; 7635 ioa_cfg->dump_timeout = 0; 7636 if (ioa_cfg->sis64) 7637 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT); 7638 else 7639 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT); 7640 ipr_cmd->job_step = ipr_reset_wait_for_dump; 7641 schedule_work(&ioa_cfg->work_q); 7642 return IPR_RC_JOB_RETURN; 7643 } 7644 } 7645 7646 LEAVE; 7647 return IPR_RC_JOB_CONTINUE; 7648} 7649 7650/** 7651 * ipr_reset_bist_done - BIST has completed on the adapter. 7652 * @ipr_cmd: ipr command struct 7653 * 7654 * Description: Unblock config space and resume the reset process. 7655 * 7656 * Return value: 7657 * IPR_RC_JOB_CONTINUE 7658 **/ 7659static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 7660{ 7661 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7662 7663 ENTER; 7664 if (ioa_cfg->cfg_locked) 7665 pci_cfg_access_unlock(ioa_cfg->pdev); 7666 ioa_cfg->cfg_locked = 0; 7667 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 7668 LEAVE; 7669 return IPR_RC_JOB_CONTINUE; 7670} 7671 7672/** 7673 * ipr_reset_start_bist - Run BIST on the adapter. 7674 * @ipr_cmd: ipr command struct 7675 * 7676 * Description: This function runs BIST on the adapter, then delays 2 seconds. 7677 * 7678 * Return value: 7679 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7680 **/ 7681static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 7682{ 7683 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7684 int rc = PCIBIOS_SUCCESSFUL; 7685 7686 ENTER; 7687 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) 7688 writel(IPR_UPROCI_SIS64_START_BIST, 7689 ioa_cfg->regs.set_uproc_interrupt_reg32); 7690 else 7691 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 7692 7693 if (rc == PCIBIOS_SUCCESSFUL) { 7694 ipr_cmd->job_step = ipr_reset_bist_done; 7695 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7696 rc = IPR_RC_JOB_RETURN; 7697 } else { 7698 if (ioa_cfg->cfg_locked) 7699 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev); 7700 ioa_cfg->cfg_locked = 0; 7701 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 7702 rc = IPR_RC_JOB_CONTINUE; 7703 } 7704 7705 LEAVE; 7706 return rc; 7707} 7708 7709/** 7710 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 7711 * @ipr_cmd: ipr command struct 7712 * 7713 * Description: This clears PCI reset to the adapter and delays two seconds. 7714 * 7715 * Return value: 7716 * IPR_RC_JOB_RETURN 7717 **/ 7718static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 7719{ 7720 ENTER; 7721 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); 7722 ipr_cmd->job_step = ipr_reset_bist_done; 7723 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 7724 LEAVE; 7725 return IPR_RC_JOB_RETURN; 7726} 7727 7728/** 7729 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 7730 * @ipr_cmd: ipr command struct 7731 * 7732 * Description: This asserts PCI reset to the adapter. 7733 * 7734 * Return value: 7735 * IPR_RC_JOB_RETURN 7736 **/ 7737static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 7738{ 7739 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7740 struct pci_dev *pdev = ioa_cfg->pdev; 7741 7742 ENTER; 7743 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 7744 ipr_cmd->job_step = ipr_reset_slot_reset_done; 7745 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); 7746 LEAVE; 7747 return IPR_RC_JOB_RETURN; 7748} 7749 7750/** 7751 * ipr_reset_block_config_access_wait - Wait for permission to block config access 7752 * @ipr_cmd: ipr command struct 7753 * 7754 * Description: This attempts to block config access to the IOA. 7755 * 7756 * Return value: 7757 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7758 **/ 7759static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd) 7760{ 7761 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7762 int rc = IPR_RC_JOB_CONTINUE; 7763 7764 if (pci_cfg_access_trylock(ioa_cfg->pdev)) { 7765 ioa_cfg->cfg_locked = 1; 7766 ipr_cmd->job_step = ioa_cfg->reset; 7767 } else { 7768 if (ipr_cmd->u.time_left) { 7769 rc = IPR_RC_JOB_RETURN; 7770 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7771 ipr_reset_start_timer(ipr_cmd, 7772 IPR_CHECK_FOR_RESET_TIMEOUT); 7773 } else { 7774 ipr_cmd->job_step = ioa_cfg->reset; 7775 dev_err(&ioa_cfg->pdev->dev, 7776 "Timed out waiting to lock config access. Resetting anyway.\n"); 7777 } 7778 } 7779 7780 return rc; 7781} 7782 7783/** 7784 * ipr_reset_block_config_access - Block config access to the IOA 7785 * @ipr_cmd: ipr command struct 7786 * 7787 * Description: This attempts to block config access to the IOA 7788 * 7789 * Return value: 7790 * IPR_RC_JOB_CONTINUE 7791 **/ 7792static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd) 7793{ 7794 ipr_cmd->ioa_cfg->cfg_locked = 0; 7795 ipr_cmd->job_step = ipr_reset_block_config_access_wait; 7796 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7797 return IPR_RC_JOB_CONTINUE; 7798} 7799 7800/** 7801 * ipr_reset_allowed - Query whether or not IOA can be reset 7802 * @ioa_cfg: ioa config struct 7803 * 7804 * Return value: 7805 * 0 if reset not allowed / non-zero if reset is allowed 7806 **/ 7807static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 7808{ 7809 volatile u32 temp_reg; 7810 7811 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 7812 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 7813} 7814 7815/** 7816 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 7817 * @ipr_cmd: ipr command struct 7818 * 7819 * Description: This function waits for adapter permission to run BIST, 7820 * then runs BIST. If the adapter does not give permission after a 7821 * reasonable time, we will reset the adapter anyway. The impact of 7822 * resetting the adapter without warning the adapter is the risk of 7823 * losing the persistent error log on the adapter. If the adapter is 7824 * reset while it is writing to the flash on the adapter, the flash 7825 * segment will have bad ECC and be zeroed. 7826 * 7827 * Return value: 7828 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7829 **/ 7830static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 7831{ 7832 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7833 int rc = IPR_RC_JOB_RETURN; 7834 7835 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 7836 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 7837 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7838 } else { 7839 ipr_cmd->job_step = ipr_reset_block_config_access; 7840 rc = IPR_RC_JOB_CONTINUE; 7841 } 7842 7843 return rc; 7844} 7845 7846/** 7847 * ipr_reset_alert - Alert the adapter of a pending reset 7848 * @ipr_cmd: ipr command struct 7849 * 7850 * Description: This function alerts the adapter that it will be reset. 7851 * If memory space is not currently enabled, proceed directly 7852 * to running BIST on the adapter. The timer must always be started 7853 * so we guarantee we do not run BIST from ipr_isr. 7854 * 7855 * Return value: 7856 * IPR_RC_JOB_RETURN 7857 **/ 7858static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 7859{ 7860 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7861 u16 cmd_reg; 7862 int rc; 7863 7864 ENTER; 7865 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 7866 7867 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 7868 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 7869 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 7870 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 7871 } else { 7872 ipr_cmd->job_step = ipr_reset_block_config_access; 7873 } 7874 7875 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 7876 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 7877 7878 LEAVE; 7879 return IPR_RC_JOB_RETURN; 7880} 7881 7882/** 7883 * ipr_reset_ucode_download_done - Microcode download completion 7884 * @ipr_cmd: ipr command struct 7885 * 7886 * Description: This function unmaps the microcode download buffer. 7887 * 7888 * Return value: 7889 * IPR_RC_JOB_CONTINUE 7890 **/ 7891static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 7892{ 7893 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7894 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7895 7896 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, 7897 sglist->num_sg, DMA_TO_DEVICE); 7898 7899 ipr_cmd->job_step = ipr_reset_alert; 7900 return IPR_RC_JOB_CONTINUE; 7901} 7902 7903/** 7904 * ipr_reset_ucode_download - Download microcode to the adapter 7905 * @ipr_cmd: ipr command struct 7906 * 7907 * Description: This function checks to see if it there is microcode 7908 * to download to the adapter. If there is, a download is performed. 7909 * 7910 * Return value: 7911 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7912 **/ 7913static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 7914{ 7915 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7916 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 7917 7918 ENTER; 7919 ipr_cmd->job_step = ipr_reset_alert; 7920 7921 if (!sglist) 7922 return IPR_RC_JOB_CONTINUE; 7923 7924 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7925 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7926 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 7927 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 7928 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 7929 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 7930 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 7931 7932 if (ioa_cfg->sis64) 7933 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 7934 else 7935 ipr_build_ucode_ioadl(ipr_cmd, sglist); 7936 ipr_cmd->job_step = ipr_reset_ucode_download_done; 7937 7938 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7939 IPR_WRITE_BUFFER_TIMEOUT); 7940 7941 LEAVE; 7942 return IPR_RC_JOB_RETURN; 7943} 7944 7945/** 7946 * ipr_reset_shutdown_ioa - Shutdown the adapter 7947 * @ipr_cmd: ipr command struct 7948 * 7949 * Description: This function issues an adapter shutdown of the 7950 * specified type to the specified adapter as part of the 7951 * adapter reset job. 7952 * 7953 * Return value: 7954 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7955 **/ 7956static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 7957{ 7958 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7959 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 7960 unsigned long timeout; 7961 int rc = IPR_RC_JOB_CONTINUE; 7962 7963 ENTER; 7964 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { 7965 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7966 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7967 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 7968 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 7969 7970 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 7971 timeout = IPR_SHUTDOWN_TIMEOUT; 7972 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 7973 timeout = IPR_INTERNAL_TIMEOUT; 7974 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7975 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 7976 else 7977 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 7978 7979 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 7980 7981 rc = IPR_RC_JOB_RETURN; 7982 ipr_cmd->job_step = ipr_reset_ucode_download; 7983 } else 7984 ipr_cmd->job_step = ipr_reset_alert; 7985 7986 LEAVE; 7987 return rc; 7988} 7989 7990/** 7991 * ipr_reset_ioa_job - Adapter reset job 7992 * @ipr_cmd: ipr command struct 7993 * 7994 * Description: This function is the job router for the adapter reset job. 7995 * 7996 * Return value: 7997 * none 7998 **/ 7999static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 8000{ 8001 u32 rc, ioasc; 8002 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8003 8004 do { 8005 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 8006 8007 if (ioa_cfg->reset_cmd != ipr_cmd) { 8008 /* 8009 * We are doing nested adapter resets and this is 8010 * not the current reset job. 8011 */ 8012 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8013 return; 8014 } 8015 8016 if (IPR_IOASC_SENSE_KEY(ioasc)) { 8017 rc = ipr_cmd->job_step_failed(ipr_cmd); 8018 if (rc == IPR_RC_JOB_RETURN) 8019 return; 8020 } 8021 8022 ipr_reinit_ipr_cmnd(ipr_cmd); 8023 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 8024 rc = ipr_cmd->job_step(ipr_cmd); 8025 } while(rc == IPR_RC_JOB_CONTINUE); 8026} 8027 8028/** 8029 * _ipr_initiate_ioa_reset - Initiate an adapter reset 8030 * @ioa_cfg: ioa config struct 8031 * @job_step: first job step of reset job 8032 * @shutdown_type: shutdown type 8033 * 8034 * Description: This function will initiate the reset of the given adapter 8035 * starting at the selected job step. 8036 * If the caller needs to wait on the completion of the reset, 8037 * the caller must sleep on the reset_wait_q. 8038 * 8039 * Return value: 8040 * none 8041 **/ 8042static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 8043 int (*job_step) (struct ipr_cmnd *), 8044 enum ipr_shutdown_type shutdown_type) 8045{ 8046 struct ipr_cmnd *ipr_cmd; 8047 8048 ioa_cfg->in_reset_reload = 1; 8049 ioa_cfg->allow_cmds = 0; 8050 scsi_block_requests(ioa_cfg->host); 8051 8052 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 8053 ioa_cfg->reset_cmd = ipr_cmd; 8054 ipr_cmd->job_step = job_step; 8055 ipr_cmd->u.shutdown_type = shutdown_type; 8056 8057 ipr_reset_ioa_job(ipr_cmd); 8058} 8059 8060/** 8061 * ipr_initiate_ioa_reset - Initiate an adapter reset 8062 * @ioa_cfg: ioa config struct 8063 * @shutdown_type: shutdown type 8064 * 8065 * Description: This function will initiate the reset of the given adapter. 8066 * If the caller needs to wait on the completion of the reset, 8067 * the caller must sleep on the reset_wait_q. 8068 * 8069 * Return value: 8070 * none 8071 **/ 8072static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 8073 enum ipr_shutdown_type shutdown_type) 8074{ 8075 if (ioa_cfg->ioa_is_dead) 8076 return; 8077 8078 if (ioa_cfg->in_reset_reload) { 8079 if (ioa_cfg->sdt_state == GET_DUMP) 8080 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8081 else if (ioa_cfg->sdt_state == READ_DUMP) 8082 ioa_cfg->sdt_state = ABORT_DUMP; 8083 } 8084 8085 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 8086 dev_err(&ioa_cfg->pdev->dev, 8087 "IOA taken offline - error recovery failed\n"); 8088 8089 ioa_cfg->reset_retries = 0; 8090 ioa_cfg->ioa_is_dead = 1; 8091 8092 if (ioa_cfg->in_ioa_bringdown) { 8093 ioa_cfg->reset_cmd = NULL; 8094 ioa_cfg->in_reset_reload = 0; 8095 ipr_fail_all_ops(ioa_cfg); 8096 wake_up_all(&ioa_cfg->reset_wait_q); 8097 8098 spin_unlock_irq(ioa_cfg->host->host_lock); 8099 scsi_unblock_requests(ioa_cfg->host); 8100 spin_lock_irq(ioa_cfg->host->host_lock); 8101 return; 8102 } else { 8103 ioa_cfg->in_ioa_bringdown = 1; 8104 shutdown_type = IPR_SHUTDOWN_NONE; 8105 } 8106 } 8107 8108 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 8109 shutdown_type); 8110} 8111 8112/** 8113 * ipr_reset_freeze - Hold off all I/O activity 8114 * @ipr_cmd: ipr command struct 8115 * 8116 * Description: If the PCI slot is frozen, hold off all I/O 8117 * activity; then, as soon as the slot is available again, 8118 * initiate an adapter reset. 8119 */ 8120static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 8121{ 8122 /* Disallow new interrupts, avoid loop */ 8123 ipr_cmd->ioa_cfg->allow_interrupts = 0; 8124 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); 8125 ipr_cmd->done = ipr_reset_ioa_job; 8126 return IPR_RC_JOB_RETURN; 8127} 8128 8129/** 8130 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 8131 * @pdev: PCI device struct 8132 * 8133 * Description: This routine is called to tell us that the PCI bus 8134 * is down. Can't do anything here, except put the device driver 8135 * into a holding pattern, waiting for the PCI bus to come back. 8136 */ 8137static void ipr_pci_frozen(struct pci_dev *pdev) 8138{ 8139 unsigned long flags = 0; 8140 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8141 8142 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8143 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 8144 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8145} 8146 8147/** 8148 * ipr_pci_slot_reset - Called when PCI slot has been reset. 8149 * @pdev: PCI device struct 8150 * 8151 * Description: This routine is called by the pci error recovery 8152 * code after the PCI slot has been reset, just before we 8153 * should resume normal operations. 8154 */ 8155static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 8156{ 8157 unsigned long flags = 0; 8158 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8159 8160 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8161 if (ioa_cfg->needs_warm_reset) 8162 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8163 else 8164 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 8165 IPR_SHUTDOWN_NONE); 8166 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8167 return PCI_ERS_RESULT_RECOVERED; 8168} 8169 8170/** 8171 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 8172 * @pdev: PCI device struct 8173 * 8174 * Description: This routine is called when the PCI bus has 8175 * permanently failed. 8176 */ 8177static void ipr_pci_perm_failure(struct pci_dev *pdev) 8178{ 8179 unsigned long flags = 0; 8180 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 8181 8182 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 8183 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8184 ioa_cfg->sdt_state = ABORT_DUMP; 8185 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; 8186 ioa_cfg->in_ioa_bringdown = 1; 8187 ioa_cfg->allow_cmds = 0; 8188 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 8190} 8191 8192/** 8193 * ipr_pci_error_detected - Called when a PCI error is detected. 8194 * @pdev: PCI device struct 8195 * @state: PCI channel state 8196 * 8197 * Description: Called when a PCI error is detected. 8198 * 8199 * Return value: 8200 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 8201 */ 8202static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 8203 pci_channel_state_t state) 8204{ 8205 switch (state) { 8206 case pci_channel_io_frozen: 8207 ipr_pci_frozen(pdev); 8208 return PCI_ERS_RESULT_NEED_RESET; 8209 case pci_channel_io_perm_failure: 8210 ipr_pci_perm_failure(pdev); 8211 return PCI_ERS_RESULT_DISCONNECT; 8212 break; 8213 default: 8214 break; 8215 } 8216 return PCI_ERS_RESULT_NEED_RESET; 8217} 8218 8219/** 8220 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 8221 * @ioa_cfg: ioa cfg struct 8222 * 8223 * Description: This is the second phase of adapter intialization 8224 * This function takes care of initilizing the adapter to the point 8225 * where it can accept new commands. 8226 8227 * Return value: 8228 * 0 on success / -EIO on failure 8229 **/ 8230static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 8231{ 8232 int rc = 0; 8233 unsigned long host_lock_flags = 0; 8234 8235 ENTER; 8236 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8237 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 8238 if (ioa_cfg->needs_hard_reset) { 8239 ioa_cfg->needs_hard_reset = 0; 8240 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8241 } else 8242 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 8243 IPR_SHUTDOWN_NONE); 8244 8245 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8246 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 8247 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 8248 8249 if (ioa_cfg->ioa_is_dead) { 8250 rc = -EIO; 8251 } else if (ipr_invalid_adapter(ioa_cfg)) { 8252 if (!ipr_testmode) 8253 rc = -EIO; 8254 8255 dev_err(&ioa_cfg->pdev->dev, 8256 "Adapter not supported in this hardware configuration.\n"); 8257 } 8258 8259 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 8260 8261 LEAVE; 8262 return rc; 8263} 8264 8265/** 8266 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 8267 * @ioa_cfg: ioa config struct 8268 * 8269 * Return value: 8270 * none 8271 **/ 8272static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8273{ 8274 int i; 8275 8276 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8277 if (ioa_cfg->ipr_cmnd_list[i]) 8278 pci_pool_free(ioa_cfg->ipr_cmd_pool, 8279 ioa_cfg->ipr_cmnd_list[i], 8280 ioa_cfg->ipr_cmnd_list_dma[i]); 8281 8282 ioa_cfg->ipr_cmnd_list[i] = NULL; 8283 } 8284 8285 if (ioa_cfg->ipr_cmd_pool) 8286 pci_pool_destroy (ioa_cfg->ipr_cmd_pool); 8287 8288 kfree(ioa_cfg->ipr_cmnd_list); 8289 kfree(ioa_cfg->ipr_cmnd_list_dma); 8290 ioa_cfg->ipr_cmnd_list = NULL; 8291 ioa_cfg->ipr_cmnd_list_dma = NULL; 8292 ioa_cfg->ipr_cmd_pool = NULL; 8293} 8294 8295/** 8296 * ipr_free_mem - Frees memory allocated for an adapter 8297 * @ioa_cfg: ioa cfg struct 8298 * 8299 * Return value: 8300 * nothing 8301 **/ 8302static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 8303{ 8304 int i; 8305 8306 kfree(ioa_cfg->res_entries); 8307 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), 8308 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8309 ipr_free_cmd_blks(ioa_cfg); 8310 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8311 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8312 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, 8313 ioa_cfg->u.cfg_table, 8314 ioa_cfg->cfg_table_dma); 8315 8316 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8317 pci_free_consistent(ioa_cfg->pdev, 8318 sizeof(struct ipr_hostrcb), 8319 ioa_cfg->hostrcb[i], 8320 ioa_cfg->hostrcb_dma[i]); 8321 } 8322 8323 ipr_free_dump(ioa_cfg); 8324 kfree(ioa_cfg->trace); 8325} 8326 8327/** 8328 * ipr_free_all_resources - Free all allocated resources for an adapter. 8329 * @ipr_cmd: ipr command struct 8330 * 8331 * This function frees all allocated resources for the 8332 * specified adapter. 8333 * 8334 * Return value: 8335 * none 8336 **/ 8337static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 8338{ 8339 struct pci_dev *pdev = ioa_cfg->pdev; 8340 8341 ENTER; 8342 free_irq(pdev->irq, ioa_cfg); 8343 pci_disable_msi(pdev); 8344 iounmap(ioa_cfg->hdw_dma_regs); 8345 pci_release_regions(pdev); 8346 ipr_free_mem(ioa_cfg); 8347 scsi_host_put(ioa_cfg->host); 8348 pci_disable_device(pdev); 8349 LEAVE; 8350} 8351 8352/** 8353 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 8354 * @ioa_cfg: ioa config struct 8355 * 8356 * Return value: 8357 * 0 on success / -ENOMEM on allocation failure 8358 **/ 8359static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 8360{ 8361 struct ipr_cmnd *ipr_cmd; 8362 struct ipr_ioarcb *ioarcb; 8363 dma_addr_t dma_addr; 8364 int i; 8365 8366 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, 8367 sizeof(struct ipr_cmnd), 512, 0); 8368 8369 if (!ioa_cfg->ipr_cmd_pool) 8370 return -ENOMEM; 8371 8372 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL); 8373 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL); 8374 8375 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) { 8376 ipr_free_cmd_blks(ioa_cfg); 8377 return -ENOMEM; 8378 } 8379 8380 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 8381 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); 8382 8383 if (!ipr_cmd) { 8384 ipr_free_cmd_blks(ioa_cfg); 8385 return -ENOMEM; 8386 } 8387 8388 memset(ipr_cmd, 0, sizeof(*ipr_cmd)); 8389 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 8390 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 8391 8392 ioarcb = &ipr_cmd->ioarcb; 8393 ipr_cmd->dma_addr = dma_addr; 8394 if (ioa_cfg->sis64) 8395 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 8396 else 8397 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 8398 8399 ioarcb->host_response_handle = cpu_to_be32(i << 2); 8400 if (ioa_cfg->sis64) { 8401 ioarcb->u.sis64_addr_data.data_ioadl_addr = 8402 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 8403 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 8404 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); 8405 } else { 8406 ioarcb->write_ioadl_addr = 8407 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 8408 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 8409 ioarcb->ioasa_host_pci_addr = 8410 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); 8411 } 8412 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 8413 ipr_cmd->cmd_index = i; 8414 ipr_cmd->ioa_cfg = ioa_cfg; 8415 ipr_cmd->sense_buffer_dma = dma_addr + 8416 offsetof(struct ipr_cmnd, sense_buffer); 8417 8418 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 8419 } 8420 8421 return 0; 8422} 8423 8424/** 8425 * ipr_alloc_mem - Allocate memory for an adapter 8426 * @ioa_cfg: ioa config struct 8427 * 8428 * Return value: 8429 * 0 on success / non-zero for error 8430 **/ 8431static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 8432{ 8433 struct pci_dev *pdev = ioa_cfg->pdev; 8434 int i, rc = -ENOMEM; 8435 8436 ENTER; 8437 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * 8438 ioa_cfg->max_devs_supported, GFP_KERNEL); 8439 8440 if (!ioa_cfg->res_entries) 8441 goto out; 8442 8443 if (ioa_cfg->sis64) { 8444 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * 8445 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8446 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * 8447 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8448 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * 8449 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); 8450 } 8451 8452 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 8453 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 8454 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 8455 } 8456 8457 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, 8458 sizeof(struct ipr_misc_cbs), 8459 &ioa_cfg->vpd_cbs_dma); 8460 8461 if (!ioa_cfg->vpd_cbs) 8462 goto out_free_res_entries; 8463 8464 if (ipr_alloc_cmd_blks(ioa_cfg)) 8465 goto out_free_vpd_cbs; 8466 8467 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, 8468 sizeof(u32) * IPR_NUM_CMD_BLKS, 8469 &ioa_cfg->host_rrq_dma); 8470 8471 if (!ioa_cfg->host_rrq) 8472 goto out_ipr_free_cmd_blocks; 8473 8474 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, 8475 ioa_cfg->cfg_table_size, 8476 &ioa_cfg->cfg_table_dma); 8477 8478 if (!ioa_cfg->u.cfg_table) 8479 goto out_free_host_rrq; 8480 8481 for (i = 0; i < IPR_NUM_HCAMS; i++) { 8482 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, 8483 sizeof(struct ipr_hostrcb), 8484 &ioa_cfg->hostrcb_dma[i]); 8485 8486 if (!ioa_cfg->hostrcb[i]) 8487 goto out_free_hostrcb_dma; 8488 8489 ioa_cfg->hostrcb[i]->hostrcb_dma = 8490 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 8491 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 8492 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 8493 } 8494 8495 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * 8496 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); 8497 8498 if (!ioa_cfg->trace) 8499 goto out_free_hostrcb_dma; 8500 8501 rc = 0; 8502out: 8503 LEAVE; 8504 return rc; 8505 8506out_free_hostrcb_dma: 8507 while (i-- > 0) { 8508 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), 8509 ioa_cfg->hostrcb[i], 8510 ioa_cfg->hostrcb_dma[i]); 8511 } 8512 pci_free_consistent(pdev, ioa_cfg->cfg_table_size, 8513 ioa_cfg->u.cfg_table, 8514 ioa_cfg->cfg_table_dma); 8515out_free_host_rrq: 8516 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, 8517 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); 8518out_ipr_free_cmd_blocks: 8519 ipr_free_cmd_blks(ioa_cfg); 8520out_free_vpd_cbs: 8521 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), 8522 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 8523out_free_res_entries: 8524 kfree(ioa_cfg->res_entries); 8525 goto out; 8526} 8527 8528/** 8529 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 8530 * @ioa_cfg: ioa config struct 8531 * 8532 * Return value: 8533 * none 8534 **/ 8535static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 8536{ 8537 int i; 8538 8539 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 8540 ioa_cfg->bus_attr[i].bus = i; 8541 ioa_cfg->bus_attr[i].qas_enabled = 0; 8542 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 8543 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 8544 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 8545 else 8546 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 8547 } 8548} 8549 8550/** 8551 * ipr_init_ioa_cfg - Initialize IOA config struct 8552 * @ioa_cfg: ioa config struct 8553 * @host: scsi host struct 8554 * @pdev: PCI dev struct 8555 * 8556 * Return value: 8557 * none 8558 **/ 8559static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 8560 struct Scsi_Host *host, struct pci_dev *pdev) 8561{ 8562 const struct ipr_interrupt_offsets *p; 8563 struct ipr_interrupts *t; 8564 void __iomem *base; 8565 8566 ioa_cfg->host = host; 8567 ioa_cfg->pdev = pdev; 8568 ioa_cfg->log_level = ipr_log_level; 8569 ioa_cfg->doorbell = IPR_DOORBELL; 8570 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 8571 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 8572 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); 8573 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); 8574 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 8575 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 8576 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 8577 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 8578 8579 INIT_LIST_HEAD(&ioa_cfg->free_q); 8580 INIT_LIST_HEAD(&ioa_cfg->pending_q); 8581 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 8582 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 8583 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 8584 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 8585 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 8586 init_waitqueue_head(&ioa_cfg->reset_wait_q); 8587 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8588 ioa_cfg->sdt_state = INACTIVE; 8589 8590 ipr_initialize_bus_attr(ioa_cfg); 8591 ioa_cfg->max_devs_supported = ipr_max_devs; 8592 8593 if (ioa_cfg->sis64) { 8594 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 8595 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 8596 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 8597 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 8598 } else { 8599 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 8600 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 8601 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 8602 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 8603 } 8604 host->max_channel = IPR_MAX_BUS_TO_SCAN; 8605 host->unique_id = host->host_no; 8606 host->max_cmd_len = IPR_MAX_CDB_LEN; 8607 host->can_queue = ioa_cfg->max_cmds; 8608 pci_set_drvdata(pdev, ioa_cfg); 8609 8610 p = &ioa_cfg->chip_cfg->regs; 8611 t = &ioa_cfg->regs; 8612 base = ioa_cfg->hdw_dma_regs; 8613 8614 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 8615 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 8616 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 8617 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 8618 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 8619 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 8620 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 8621 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 8622 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 8623 t->ioarrin_reg = base + p->ioarrin_reg; 8624 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 8625 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 8626 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 8627 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 8628 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 8629 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 8630 8631 if (ioa_cfg->sis64) { 8632 t->init_feedback_reg = base + p->init_feedback_reg; 8633 t->dump_addr_reg = base + p->dump_addr_reg; 8634 t->dump_data_reg = base + p->dump_data_reg; 8635 t->endian_swap_reg = base + p->endian_swap_reg; 8636 } 8637} 8638 8639/** 8640 * ipr_get_chip_info - Find adapter chip information 8641 * @dev_id: PCI device id struct 8642 * 8643 * Return value: 8644 * ptr to chip information on success / NULL on failure 8645 **/ 8646static const struct ipr_chip_t * __devinit 8647ipr_get_chip_info(const struct pci_device_id *dev_id) 8648{ 8649 int i; 8650 8651 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 8652 if (ipr_chip[i].vendor == dev_id->vendor && 8653 ipr_chip[i].device == dev_id->device) 8654 return &ipr_chip[i]; 8655 return NULL; 8656} 8657 8658/** 8659 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 8660 * @pdev: PCI device struct 8661 * 8662 * Description: Simply set the msi_received flag to 1 indicating that 8663 * Message Signaled Interrupts are supported. 8664 * 8665 * Return value: 8666 * 0 on success / non-zero on failure 8667 **/ 8668static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) 8669{ 8670 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 8671 unsigned long lock_flags = 0; 8672 irqreturn_t rc = IRQ_HANDLED; 8673 8674 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8675 8676 ioa_cfg->msi_received = 1; 8677 wake_up(&ioa_cfg->msi_wait_q); 8678 8679 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8680 return rc; 8681} 8682 8683/** 8684 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 8685 * @pdev: PCI device struct 8686 * 8687 * Description: The return value from pci_enable_msi() can not always be 8688 * trusted. This routine sets up and initiates a test interrupt to determine 8689 * if the interrupt is received via the ipr_test_intr() service routine. 8690 * If the tests fails, the driver will fall back to LSI. 8691 * 8692 * Return value: 8693 * 0 on success / non-zero on failure 8694 **/ 8695static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, 8696 struct pci_dev *pdev) 8697{ 8698 int rc; 8699 volatile u32 int_reg; 8700 unsigned long lock_flags = 0; 8701 8702 ENTER; 8703 8704 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8705 init_waitqueue_head(&ioa_cfg->msi_wait_q); 8706 ioa_cfg->msi_received = 0; 8707 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8708 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 8709 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8710 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8711 8712 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 8713 if (rc) { 8714 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); 8715 return rc; 8716 } else if (ipr_debug) 8717 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); 8718 8719 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 8720 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8721 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 8722 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8723 8724 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8725 if (!ioa_cfg->msi_received) { 8726 /* MSI test failed */ 8727 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 8728 rc = -EOPNOTSUPP; 8729 } else if (ipr_debug) 8730 dev_info(&pdev->dev, "MSI test succeeded.\n"); 8731 8732 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8733 8734 free_irq(pdev->irq, ioa_cfg); 8735 8736 LEAVE; 8737 8738 return rc; 8739} 8740 8741/** 8742 * ipr_probe_ioa - Allocates memory and does first stage of initialization 8743 * @pdev: PCI device struct 8744 * @dev_id: PCI device id struct 8745 * 8746 * Return value: 8747 * 0 on success / non-zero on failure 8748 **/ 8749static int __devinit ipr_probe_ioa(struct pci_dev *pdev, 8750 const struct pci_device_id *dev_id) 8751{ 8752 struct ipr_ioa_cfg *ioa_cfg; 8753 struct Scsi_Host *host; 8754 unsigned long ipr_regs_pci; 8755 void __iomem *ipr_regs; 8756 int rc = PCIBIOS_SUCCESSFUL; 8757 volatile u32 mask, uproc, interrupts; 8758 8759 ENTER; 8760 8761 if ((rc = pci_enable_device(pdev))) { 8762 dev_err(&pdev->dev, "Cannot enable adapter\n"); 8763 goto out; 8764 } 8765 8766 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 8767 8768 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 8769 8770 if (!host) { 8771 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 8772 rc = -ENOMEM; 8773 goto out_disable; 8774 } 8775 8776 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 8777 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 8778 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, 8779 sata_port_info.flags, &ipr_sata_ops); 8780 8781 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 8782 8783 if (!ioa_cfg->ipr_chip) { 8784 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 8785 dev_id->vendor, dev_id->device); 8786 goto out_scsi_host_put; 8787 } 8788 8789 /* set SIS 32 or SIS 64 */ 8790 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 8791 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 8792 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr; 8793 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds; 8794 8795 if (ipr_transop_timeout) 8796 ioa_cfg->transop_timeout = ipr_transop_timeout; 8797 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 8798 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 8799 else 8800 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 8801 8802 ioa_cfg->revid = pdev->revision; 8803 8804 ipr_regs_pci = pci_resource_start(pdev, 0); 8805 8806 rc = pci_request_regions(pdev, IPR_NAME); 8807 if (rc < 0) { 8808 dev_err(&pdev->dev, 8809 "Couldn't register memory range of registers\n"); 8810 goto out_scsi_host_put; 8811 } 8812 8813 ipr_regs = pci_ioremap_bar(pdev, 0); 8814 8815 if (!ipr_regs) { 8816 dev_err(&pdev->dev, 8817 "Couldn't map memory range of registers\n"); 8818 rc = -ENOMEM; 8819 goto out_release_regions; 8820 } 8821 8822 ioa_cfg->hdw_dma_regs = ipr_regs; 8823 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 8824 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 8825 8826 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 8827 8828 pci_set_master(pdev); 8829 8830 if (ioa_cfg->sis64) { 8831 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); 8832 if (rc < 0) { 8833 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); 8834 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8835 } 8836 8837 } else 8838 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); 8839 8840 if (rc < 0) { 8841 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); 8842 goto cleanup_nomem; 8843 } 8844 8845 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 8846 ioa_cfg->chip_cfg->cache_line_size); 8847 8848 if (rc != PCIBIOS_SUCCESSFUL) { 8849 dev_err(&pdev->dev, "Write of cache line size failed\n"); 8850 rc = -EIO; 8851 goto cleanup_nomem; 8852 } 8853 8854 /* Enable MSI style interrupts if they are supported. */ 8855 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { 8856 rc = ipr_test_msi(ioa_cfg, pdev); 8857 if (rc == -EOPNOTSUPP) 8858 pci_disable_msi(pdev); 8859 else if (rc) 8860 goto out_msi_disable; 8861 else 8862 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); 8863 } else if (ipr_debug) 8864 dev_info(&pdev->dev, "Cannot enable MSI.\n"); 8865 8866 /* Save away PCI config space for use following IOA reset */ 8867 rc = pci_save_state(pdev); 8868 8869 if (rc != PCIBIOS_SUCCESSFUL) { 8870 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 8871 rc = -EIO; 8872 goto out_msi_disable; 8873 } 8874 8875 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 8876 goto out_msi_disable; 8877 8878 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 8879 goto out_msi_disable; 8880 8881 if (ioa_cfg->sis64) 8882 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 8883 + ((sizeof(struct ipr_config_table_entry64) 8884 * ioa_cfg->max_devs_supported))); 8885 else 8886 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 8887 + ((sizeof(struct ipr_config_table_entry) 8888 * ioa_cfg->max_devs_supported))); 8889 8890 rc = ipr_alloc_mem(ioa_cfg); 8891 if (rc < 0) { 8892 dev_err(&pdev->dev, 8893 "Couldn't allocate enough memory for device driver!\n"); 8894 goto out_msi_disable; 8895 } 8896 8897 /* 8898 * If HRRQ updated interrupt is not masked, or reset alert is set, 8899 * the card is in an unknown state and needs a hard reset 8900 */ 8901 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 8902 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 8903 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 8904 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 8905 ioa_cfg->needs_hard_reset = 1; 8906 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices) 8907 ioa_cfg->needs_hard_reset = 1; 8908 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 8909 ioa_cfg->ioa_unit_checked = 1; 8910 8911 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8912 rc = request_irq(pdev->irq, ipr_isr, 8913 ioa_cfg->msi_received ? 0 : IRQF_SHARED, 8914 IPR_NAME, ioa_cfg); 8915 8916 if (rc) { 8917 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 8918 pdev->irq, rc); 8919 goto cleanup_nolog; 8920 } 8921 8922 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 8923 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 8924 ioa_cfg->needs_warm_reset = 1; 8925 ioa_cfg->reset = ipr_reset_slot_reset; 8926 } else 8927 ioa_cfg->reset = ipr_reset_start_bist; 8928 8929 spin_lock(&ipr_driver_lock); 8930 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 8931 spin_unlock(&ipr_driver_lock); 8932 8933 LEAVE; 8934out: 8935 return rc; 8936 8937cleanup_nolog: 8938 ipr_free_mem(ioa_cfg); 8939out_msi_disable: 8940 pci_disable_msi(pdev); 8941cleanup_nomem: 8942 iounmap(ipr_regs); 8943out_release_regions: 8944 pci_release_regions(pdev); 8945out_scsi_host_put: 8946 scsi_host_put(host); 8947out_disable: 8948 pci_disable_device(pdev); 8949 goto out; 8950} 8951 8952/** 8953 * ipr_scan_vsets - Scans for VSET devices 8954 * @ioa_cfg: ioa config struct 8955 * 8956 * Description: Since the VSET resources do not follow SAM in that we can have 8957 * sparse LUNs with no LUN 0, we have to scan for these ourselves. 8958 * 8959 * Return value: 8960 * none 8961 **/ 8962static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) 8963{ 8964 int target, lun; 8965 8966 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) 8967 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) 8968 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); 8969} 8970 8971/** 8972 * ipr_initiate_ioa_bringdown - Bring down an adapter 8973 * @ioa_cfg: ioa config struct 8974 * @shutdown_type: shutdown type 8975 * 8976 * Description: This function will initiate bringing down the adapter. 8977 * This consists of issuing an IOA shutdown to the adapter 8978 * to flush the cache, and running BIST. 8979 * If the caller needs to wait on the completion of the reset, 8980 * the caller must sleep on the reset_wait_q. 8981 * 8982 * Return value: 8983 * none 8984 **/ 8985static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 8986 enum ipr_shutdown_type shutdown_type) 8987{ 8988 ENTER; 8989 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 8990 ioa_cfg->sdt_state = ABORT_DUMP; 8991 ioa_cfg->reset_retries = 0; 8992 ioa_cfg->in_ioa_bringdown = 1; 8993 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 8994 LEAVE; 8995} 8996 8997/** 8998 * __ipr_remove - Remove a single adapter 8999 * @pdev: pci device struct 9000 * 9001 * Adapter hot plug remove entry point. 9002 * 9003 * Return value: 9004 * none 9005 **/ 9006static void __ipr_remove(struct pci_dev *pdev) 9007{ 9008 unsigned long host_lock_flags = 0; 9009 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9010 ENTER; 9011 9012 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 9013 while(ioa_cfg->in_reset_reload) { 9014 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 9015 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 9016 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 9017 } 9018 9019 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 9020 9021 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 9022 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 9023 flush_work_sync(&ioa_cfg->work_q); 9024 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 9025 9026 spin_lock(&ipr_driver_lock); 9027 list_del(&ioa_cfg->queue); 9028 spin_unlock(&ipr_driver_lock); 9029 9030 if (ioa_cfg->sdt_state == ABORT_DUMP) 9031 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 9032 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 9033 9034 ipr_free_all_resources(ioa_cfg); 9035 9036 LEAVE; 9037} 9038 9039/** 9040 * ipr_remove - IOA hot plug remove entry point 9041 * @pdev: pci device struct 9042 * 9043 * Adapter hot plug remove entry point. 9044 * 9045 * Return value: 9046 * none 9047 **/ 9048static void __devexit ipr_remove(struct pci_dev *pdev) 9049{ 9050 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9051 9052 ENTER; 9053 9054 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 9055 &ipr_trace_attr); 9056 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 9057 &ipr_dump_attr); 9058 scsi_remove_host(ioa_cfg->host); 9059 9060 __ipr_remove(pdev); 9061 9062 LEAVE; 9063} 9064 9065/** 9066 * ipr_probe - Adapter hot plug add entry point 9067 * 9068 * Return value: 9069 * 0 on success / non-zero on failure 9070 **/ 9071static int __devinit ipr_probe(struct pci_dev *pdev, 9072 const struct pci_device_id *dev_id) 9073{ 9074 struct ipr_ioa_cfg *ioa_cfg; 9075 int rc; 9076 9077 rc = ipr_probe_ioa(pdev, dev_id); 9078 9079 if (rc) 9080 return rc; 9081 9082 ioa_cfg = pci_get_drvdata(pdev); 9083 rc = ipr_probe_ioa_part2(ioa_cfg); 9084 9085 if (rc) { 9086 __ipr_remove(pdev); 9087 return rc; 9088 } 9089 9090 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 9091 9092 if (rc) { 9093 __ipr_remove(pdev); 9094 return rc; 9095 } 9096 9097 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 9098 &ipr_trace_attr); 9099 9100 if (rc) { 9101 scsi_remove_host(ioa_cfg->host); 9102 __ipr_remove(pdev); 9103 return rc; 9104 } 9105 9106 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 9107 &ipr_dump_attr); 9108 9109 if (rc) { 9110 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 9111 &ipr_trace_attr); 9112 scsi_remove_host(ioa_cfg->host); 9113 __ipr_remove(pdev); 9114 return rc; 9115 } 9116 9117 scsi_scan_host(ioa_cfg->host); 9118 ipr_scan_vsets(ioa_cfg); 9119 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); 9120 ioa_cfg->allow_ml_add_del = 1; 9121 ioa_cfg->host->max_channel = IPR_VSET_BUS; 9122 schedule_work(&ioa_cfg->work_q); 9123 return 0; 9124} 9125 9126/** 9127 * ipr_shutdown - Shutdown handler. 9128 * @pdev: pci device struct 9129 * 9130 * This function is invoked upon system shutdown/reboot. It will issue 9131 * an adapter shutdown to the adapter to flush the write cache. 9132 * 9133 * Return value: 9134 * none 9135 **/ 9136static void ipr_shutdown(struct pci_dev *pdev) 9137{ 9138 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9139 unsigned long lock_flags = 0; 9140 9141 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 9142 while(ioa_cfg->in_reset_reload) { 9143 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 9144 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 9145 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 9146 } 9147 9148 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 9149 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 9150 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 9151} 9152 9153static struct pci_device_id ipr_pci_table[] __devinitdata = { 9154 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9155 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 9156 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9157 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 9158 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9159 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 9160 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 9161 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 9162 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9163 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 9164 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9165 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 9166 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9167 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 9168 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 9169 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 9170 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9171 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9172 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 9173 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9174 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 9175 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9176 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 9177 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 9178 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9180 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 9181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9182 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 9183 IPR_USE_LONG_TRANSOP_TIMEOUT}, 9184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 9185 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 9186 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9187 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9188 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 9189 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9191 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 9192 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9193 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, 9194 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 9195 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 9196 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 9197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 9198 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 9199 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9200 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 9201 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9202 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 9203 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9204 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 9205 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 9206 IPR_USE_LONG_TRANSOP_TIMEOUT }, 9207 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9208 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 9209 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9210 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 9211 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9212 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 9213 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9214 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 }, 9215 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 9216 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, 9217 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 9218 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 9219 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 9220 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 9221 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 9222 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 9223 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 9224 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 }, 9225 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 9226 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 9227 { } 9228}; 9229MODULE_DEVICE_TABLE(pci, ipr_pci_table); 9230 9231static struct pci_error_handlers ipr_err_handler = { 9232 .error_detected = ipr_pci_error_detected, 9233 .slot_reset = ipr_pci_slot_reset, 9234}; 9235 9236static struct pci_driver ipr_driver = { 9237 .name = IPR_NAME, 9238 .id_table = ipr_pci_table, 9239 .probe = ipr_probe, 9240 .remove = __devexit_p(ipr_remove), 9241 .shutdown = ipr_shutdown, 9242 .err_handler = &ipr_err_handler, 9243}; 9244 9245/** 9246 * ipr_halt_done - Shutdown prepare completion 9247 * 9248 * Return value: 9249 * none 9250 **/ 9251static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 9252{ 9253 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9254 9255 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); 9256} 9257 9258/** 9259 * ipr_halt - Issue shutdown prepare to all adapters 9260 * 9261 * Return value: 9262 * NOTIFY_OK on success / NOTIFY_DONE on failure 9263 **/ 9264static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 9265{ 9266 struct ipr_cmnd *ipr_cmd; 9267 struct ipr_ioa_cfg *ioa_cfg; 9268 unsigned long flags = 0; 9269 9270 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 9271 return NOTIFY_DONE; 9272 9273 spin_lock(&ipr_driver_lock); 9274 9275 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 9276 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9277 if (!ioa_cfg->allow_cmds) { 9278 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9279 continue; 9280 } 9281 9282 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 9283 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9284 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 9285 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 9286 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 9287 9288 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 9289 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9290 } 9291 spin_unlock(&ipr_driver_lock); 9292 9293 return NOTIFY_OK; 9294} 9295 9296static struct notifier_block ipr_notifier = { 9297 ipr_halt, NULL, 0 9298}; 9299 9300/** 9301 * ipr_init - Module entry point 9302 * 9303 * Return value: 9304 * 0 on success / negative value on failure 9305 **/ 9306static int __init ipr_init(void) 9307{ 9308 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 9309 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 9310 9311 register_reboot_notifier(&ipr_notifier); 9312 return pci_register_driver(&ipr_driver); 9313} 9314 9315/** 9316 * ipr_exit - Module unload 9317 * 9318 * Module unload entry point. 9319 * 9320 * Return value: 9321 * none 9322 **/ 9323static void __exit ipr_exit(void) 9324{ 9325 unregister_reboot_notifier(&ipr_notifier); 9326 pci_unregister_driver(&ipr_driver); 9327} 9328 9329module_init(ipr_init); 9330module_exit(ipr_exit); 9331