1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * ipr.c -- driver for IBM Power Linux RAID adapters 4 * 5 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation 6 * 7 * Copyright (C) 2003, 2004 IBM Corporation 8 */ 9 10 /* 11 * Notes: 12 * 13 * This driver is used to control the following SCSI adapters: 14 * 15 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B 16 * 17 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter 18 * PCI-X Dual Channel Ultra 320 SCSI Adapter 19 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card 20 * Embedded SCSI adapter on p615 and p655 systems 21 * 22 * Supported Hardware Features: 23 * - Ultra 320 SCSI controller 24 * - PCI-X host interface 25 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine 26 * - Non-Volatile Write Cache 27 * - Supports attachment of non-RAID disks, tape, and optical devices 28 * - RAID Levels 0, 5, 10 29 * - Hot spare 30 * - Background Parity Checking 31 * - Background Data Scrubbing 32 * - Ability to increase the capacity of an existing RAID 5 disk array 33 * by adding disks 34 * 35 * Driver Features: 36 * - Tagged command queuing 37 * - Adapter microcode download 38 * - PCI hot plug 39 * - SCSI device hot plug 40 * 41 */ 42 43 #include <linux/fs.h> 44 #include <linux/init.h> 45 #include <linux/types.h> 46 #include <linux/errno.h> 47 #include <linux/kernel.h> 48 #include <linux/slab.h> 49 #include <linux/vmalloc.h> 50 #include <linux/ioport.h> 51 #include <linux/delay.h> 52 #include <linux/pci.h> 53 #include <linux/wait.h> 54 #include <linux/spinlock.h> 55 #include <linux/sched.h> 56 #include <linux/interrupt.h> 57 #include <linux/blkdev.h> 58 #include <linux/firmware.h> 59 #include <linux/module.h> 60 #include <linux/moduleparam.h> 61 #include <linux/libata.h> 62 #include <linux/hdreg.h> 63 #include <linux/reboot.h> 64 #include <linux/stringify.h> 65 #include <asm/io.h> 66 #include <asm/irq.h> 67 #include <asm/processor.h> 68 #include <scsi/scsi.h> 69 #include <scsi/scsi_host.h> 70 #include <scsi/scsi_tcq.h> 71 #include <scsi/scsi_eh.h> 72 #include <scsi/scsi_cmnd.h> 73 #include "ipr.h" 74 75 /* 76 * Global Data 77 */ 78 static LIST_HEAD(ipr_ioa_head); 79 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; 80 static unsigned int ipr_max_speed = 1; 81 static int ipr_testmode = 0; 82 static unsigned int ipr_fastfail = 0; 83 static unsigned int ipr_transop_timeout = 0; 84 static unsigned int ipr_debug = 0; 85 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; 86 static unsigned int ipr_dual_ioa_raid = 1; 87 static unsigned int ipr_number_of_msix = 16; 88 static unsigned int ipr_fast_reboot; 89 static DEFINE_SPINLOCK(ipr_driver_lock); 90 91 /* This table describes the differences between DMA controller chips */ 92 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { 93 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ 94 .mailbox = 0x0042C, 95 .max_cmds = 100, 96 .cache_line_size = 0x20, 97 .clear_isr = 1, 98 .iopoll_weight = 0, 99 { 100 .set_interrupt_mask_reg = 0x0022C, 101 .clr_interrupt_mask_reg = 0x00230, 102 .clr_interrupt_mask_reg32 = 0x00230, 103 .sense_interrupt_mask_reg = 0x0022C, 104 .sense_interrupt_mask_reg32 = 0x0022C, 105 .clr_interrupt_reg = 0x00228, 106 .clr_interrupt_reg32 = 0x00228, 107 .sense_interrupt_reg = 0x00224, 108 .sense_interrupt_reg32 = 0x00224, 109 .ioarrin_reg = 0x00404, 110 .sense_uproc_interrupt_reg = 0x00214, 111 .sense_uproc_interrupt_reg32 = 0x00214, 112 .set_uproc_interrupt_reg = 0x00214, 113 .set_uproc_interrupt_reg32 = 0x00214, 114 .clr_uproc_interrupt_reg = 0x00218, 115 .clr_uproc_interrupt_reg32 = 0x00218 116 } 117 }, 118 { /* Snipe and Scamp */ 119 .mailbox = 0x0052C, 120 .max_cmds = 100, 121 .cache_line_size = 0x20, 122 .clear_isr = 1, 123 .iopoll_weight = 0, 124 { 125 .set_interrupt_mask_reg = 0x00288, 126 .clr_interrupt_mask_reg = 0x0028C, 127 .clr_interrupt_mask_reg32 = 0x0028C, 128 .sense_interrupt_mask_reg = 0x00288, 129 .sense_interrupt_mask_reg32 = 0x00288, 130 .clr_interrupt_reg = 0x00284, 131 .clr_interrupt_reg32 = 0x00284, 132 .sense_interrupt_reg = 0x00280, 133 .sense_interrupt_reg32 = 0x00280, 134 .ioarrin_reg = 0x00504, 135 .sense_uproc_interrupt_reg = 0x00290, 136 .sense_uproc_interrupt_reg32 = 0x00290, 137 .set_uproc_interrupt_reg = 0x00290, 138 .set_uproc_interrupt_reg32 = 0x00290, 139 .clr_uproc_interrupt_reg = 0x00294, 140 .clr_uproc_interrupt_reg32 = 0x00294 141 } 142 }, 143 { /* CRoC */ 144 .mailbox = 0x00044, 145 .max_cmds = 1000, 146 .cache_line_size = 0x20, 147 .clear_isr = 0, 148 .iopoll_weight = 64, 149 { 150 .set_interrupt_mask_reg = 0x00010, 151 .clr_interrupt_mask_reg = 0x00018, 152 .clr_interrupt_mask_reg32 = 0x0001C, 153 .sense_interrupt_mask_reg = 0x00010, 154 .sense_interrupt_mask_reg32 = 0x00014, 155 .clr_interrupt_reg = 0x00008, 156 .clr_interrupt_reg32 = 0x0000C, 157 .sense_interrupt_reg = 0x00000, 158 .sense_interrupt_reg32 = 0x00004, 159 .ioarrin_reg = 0x00070, 160 .sense_uproc_interrupt_reg = 0x00020, 161 .sense_uproc_interrupt_reg32 = 0x00024, 162 .set_uproc_interrupt_reg = 0x00020, 163 .set_uproc_interrupt_reg32 = 0x00024, 164 .clr_uproc_interrupt_reg = 0x00028, 165 .clr_uproc_interrupt_reg32 = 0x0002C, 166 .init_feedback_reg = 0x0005C, 167 .dump_addr_reg = 0x00064, 168 .dump_data_reg = 0x00068, 169 .endian_swap_reg = 0x00084 170 } 171 }, 172 }; 173 174 static const struct ipr_chip_t ipr_chip[] = { 175 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 176 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 177 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, true, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, 180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, 181 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, 182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, 183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, 184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } 185 }; 186 187 static int ipr_max_bus_speeds[] = { 188 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE 189 }; 190 191 MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); 192 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); 193 module_param_named(max_speed, ipr_max_speed, uint, 0); 194 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); 195 module_param_named(log_level, ipr_log_level, uint, 0); 196 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); 197 module_param_named(testmode, ipr_testmode, int, 0); 198 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); 199 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); 200 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); 201 module_param_named(transop_timeout, ipr_transop_timeout, int, 0); 202 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); 203 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); 204 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); 205 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); 206 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); 207 module_param_named(max_devs, ipr_max_devs, int, 0); 208 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " 209 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); 210 module_param_named(number_of_msix, ipr_number_of_msix, int, 0); 211 MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:16)"); 212 module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR); 213 MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)"); 214 MODULE_LICENSE("GPL"); 215 MODULE_VERSION(IPR_DRIVER_VERSION); 216 217 /* A constant array of IOASCs/URCs/Error Messages */ 218 static const 219 struct ipr_error_table_t ipr_error_table[] = { 220 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, 221 "8155: An unknown error was received"}, 222 {0x00330000, 0, 0, 223 "Soft underlength error"}, 224 {0x005A0000, 0, 0, 225 "Command to be cancelled not found"}, 226 {0x00808000, 0, 0, 227 "Qualified success"}, 228 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, 229 "FFFE: Soft device bus error recovered by the IOA"}, 230 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, 231 "4101: Soft device bus fabric error"}, 232 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, 233 "FFFC: Logical block guard error recovered by the device"}, 234 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, 235 "FFFC: Logical block reference tag error recovered by the device"}, 236 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, 237 "4171: Recovered scatter list tag / sequence number error"}, 238 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, 239 "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, 240 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, 241 "4171: Recovered logical block sequence number error on IOA to Host transfer"}, 242 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, 243 "FFFD: Recovered logical block reference tag error detected by the IOA"}, 244 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, 245 "FFFD: Logical block guard error recovered by the IOA"}, 246 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, 247 "FFF9: Device sector reassign successful"}, 248 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, 249 "FFF7: Media error recovered by device rewrite procedures"}, 250 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, 251 "7001: IOA sector reassignment successful"}, 252 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, 253 "FFF9: Soft media error. Sector reassignment recommended"}, 254 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, 255 "FFF7: Media error recovered by IOA rewrite procedures"}, 256 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, 257 "FF3D: Soft PCI bus error recovered by the IOA"}, 258 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, 259 "FFF6: Device hardware error recovered by the IOA"}, 260 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, 261 "FFF6: Device hardware error recovered by the device"}, 262 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, 263 "FF3D: Soft IOA error recovered by the IOA"}, 264 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, 265 "FFFA: Undefined device response recovered by the IOA"}, 266 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, 267 "FFF6: Device bus error, message or command phase"}, 268 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, 269 "FFFE: Task Management Function failed"}, 270 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, 271 "FFF6: Failure prediction threshold exceeded"}, 272 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, 273 "8009: Impending cache battery pack failure"}, 274 {0x02040100, 0, 0, 275 "Logical Unit in process of becoming ready"}, 276 {0x02040200, 0, 0, 277 "Initializing command required"}, 278 {0x02040400, 0, 0, 279 "34FF: Disk device format in progress"}, 280 {0x02040C00, 0, 0, 281 "Logical unit not accessible, target port in unavailable state"}, 282 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, 283 "9070: IOA requested reset"}, 284 {0x023F0000, 0, 0, 285 "Synchronization required"}, 286 {0x02408500, 0, 0, 287 "IOA microcode download required"}, 288 {0x02408600, 0, 0, 289 "Device bus connection is prohibited by host"}, 290 {0x024E0000, 0, 0, 291 "No ready, IOA shutdown"}, 292 {0x025A0000, 0, 0, 293 "Not ready, IOA has been shutdown"}, 294 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, 295 "3020: Storage subsystem configuration error"}, 296 {0x03110B00, 0, 0, 297 "FFF5: Medium error, data unreadable, recommend reassign"}, 298 {0x03110C00, 0, 0, 299 "7000: Medium error, data unreadable, do not reassign"}, 300 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, 301 "FFF3: Disk media format bad"}, 302 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, 303 "3002: Addressed device failed to respond to selection"}, 304 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, 305 "3100: Device bus error"}, 306 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, 307 "3109: IOA timed out a device command"}, 308 {0x04088000, 0, 0, 309 "3120: SCSI bus is not operational"}, 310 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, 311 "4100: Hard device bus fabric error"}, 312 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, 313 "310C: Logical block guard error detected by the device"}, 314 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, 315 "310C: Logical block reference tag error detected by the device"}, 316 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, 317 "4170: Scatter list tag / sequence number error"}, 318 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, 319 "8150: Logical block CRC error on IOA to Host transfer"}, 320 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, 321 "4170: Logical block sequence number error on IOA to Host transfer"}, 322 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, 323 "310D: Logical block reference tag error detected by the IOA"}, 324 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, 325 "310D: Logical block guard error detected by the IOA"}, 326 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, 327 "9000: IOA reserved area data check"}, 328 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, 329 "9001: IOA reserved area invalid data pattern"}, 330 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, 331 "9002: IOA reserved area LRC error"}, 332 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, 333 "Hardware Error, IOA metadata access error"}, 334 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, 335 "102E: Out of alternate sectors for disk storage"}, 336 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, 337 "FFF4: Data transfer underlength error"}, 338 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, 339 "FFF4: Data transfer overlength error"}, 340 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, 341 "3400: Logical unit failure"}, 342 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, 343 "FFF4: Device microcode is corrupt"}, 344 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, 345 "8150: PCI bus error"}, 346 {0x04430000, 1, 0, 347 "Unsupported device bus message received"}, 348 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, 349 "FFF4: Disk device problem"}, 350 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, 351 "8150: Permanent IOA failure"}, 352 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, 353 "3010: Disk device returned wrong response to IOA"}, 354 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, 355 "8151: IOA microcode error"}, 356 {0x04448500, 0, 0, 357 "Device bus status error"}, 358 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, 359 "8157: IOA error requiring IOA reset to recover"}, 360 {0x04448700, 0, 0, 361 "ATA device status error"}, 362 {0x04490000, 0, 0, 363 "Message reject received from the device"}, 364 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, 365 "8008: A permanent cache battery pack failure occurred"}, 366 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, 367 "9090: Disk unit has been modified after the last known status"}, 368 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, 369 "9081: IOA detected device error"}, 370 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, 371 "9082: IOA detected device error"}, 372 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, 373 "3110: Device bus error, message or command phase"}, 374 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, 375 "3110: SAS Command / Task Management Function failed"}, 376 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, 377 "9091: Incorrect hardware configuration change has been detected"}, 378 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, 379 "9073: Invalid multi-adapter configuration"}, 380 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, 381 "4010: Incorrect connection between cascaded expanders"}, 382 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, 383 "4020: Connections exceed IOA design limits"}, 384 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, 385 "4030: Incorrect multipath connection"}, 386 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, 387 "4110: Unsupported enclosure function"}, 388 {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL, 389 "4120: SAS cable VPD cannot be read"}, 390 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, 391 "FFF4: Command to logical unit failed"}, 392 {0x05240000, 1, 0, 393 "Illegal request, invalid request type or request packet"}, 394 {0x05250000, 0, 0, 395 "Illegal request, invalid resource handle"}, 396 {0x05258000, 0, 0, 397 "Illegal request, commands not allowed to this device"}, 398 {0x05258100, 0, 0, 399 "Illegal request, command not allowed to a secondary adapter"}, 400 {0x05258200, 0, 0, 401 "Illegal request, command not allowed to a non-optimized resource"}, 402 {0x05260000, 0, 0, 403 "Illegal request, invalid field in parameter list"}, 404 {0x05260100, 0, 0, 405 "Illegal request, parameter not supported"}, 406 {0x05260200, 0, 0, 407 "Illegal request, parameter value invalid"}, 408 {0x052C0000, 0, 0, 409 "Illegal request, command sequence error"}, 410 {0x052C8000, 1, 0, 411 "Illegal request, dual adapter support not enabled"}, 412 {0x052C8100, 1, 0, 413 "Illegal request, another cable connector was physically disabled"}, 414 {0x054E8000, 1, 0, 415 "Illegal request, inconsistent group id/group count"}, 416 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, 417 "9031: Array protection temporarily suspended, protection resuming"}, 418 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, 419 "9040: Array protection temporarily suspended, protection resuming"}, 420 {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL, 421 "4080: IOA exceeded maximum operating temperature"}, 422 {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL, 423 "4085: Service required"}, 424 {0x060B8100, 0, IPR_DEFAULT_LOG_LEVEL, 425 "4086: SAS Adapter Hardware Configuration Error"}, 426 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, 427 "3140: Device bus not ready to ready transition"}, 428 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, 429 "FFFB: SCSI bus was reset"}, 430 {0x06290500, 0, 0, 431 "FFFE: SCSI bus transition to single ended"}, 432 {0x06290600, 0, 0, 433 "FFFE: SCSI bus transition to LVD"}, 434 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, 435 "FFFB: SCSI bus was reset by another initiator"}, 436 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, 437 "3029: A device replacement has occurred"}, 438 {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL, 439 "4102: Device bus fabric performance degradation"}, 440 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, 441 "9051: IOA cache data exists for a missing or failed device"}, 442 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, 443 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, 444 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, 445 "9025: Disk unit is not supported at its physical location"}, 446 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, 447 "3020: IOA detected a SCSI bus configuration error"}, 448 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, 449 "3150: SCSI bus configuration error"}, 450 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, 451 "9074: Asymmetric advanced function disk configuration"}, 452 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, 453 "4040: Incomplete multipath connection between IOA and enclosure"}, 454 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, 455 "4041: Incomplete multipath connection between enclosure and device"}, 456 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, 457 "9075: Incomplete multipath connection between IOA and remote IOA"}, 458 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, 459 "9076: Configuration error, missing remote IOA"}, 460 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, 461 "4050: Enclosure does not support a required multipath function"}, 462 {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL, 463 "4121: Configuration error, required cable is missing"}, 464 {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL, 465 "4122: Cable is not plugged into the correct location on remote IOA"}, 466 {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL, 467 "4123: Configuration error, invalid cable vital product data"}, 468 {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL, 469 "4124: Configuration error, both cable ends are plugged into the same IOA"}, 470 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, 471 "4070: Logically bad block written on device"}, 472 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, 473 "9041: Array protection temporarily suspended"}, 474 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, 475 "9042: Corrupt array parity detected on specified device"}, 476 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, 477 "9030: Array no longer protected due to missing or failed disk unit"}, 478 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, 479 "9071: Link operational transition"}, 480 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, 481 "9072: Link not operational transition"}, 482 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, 483 "9032: Array exposed but still protected"}, 484 {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL, 485 "70DD: Device forced failed by disrupt device command"}, 486 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, 487 "4061: Multipath redundancy level got better"}, 488 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, 489 "4060: Multipath redundancy level got worse"}, 490 {0x06808100, 0, IPR_DEBUG_LOG_LEVEL, 491 "9083: Device raw mode enabled"}, 492 {0x06808200, 0, IPR_DEBUG_LOG_LEVEL, 493 "9084: Device raw mode disabled"}, 494 {0x07270000, 0, 0, 495 "Failure due to other device"}, 496 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, 497 "9008: IOA does not support functions expected by devices"}, 498 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, 499 "9010: Cache data associated with attached devices cannot be found"}, 500 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, 501 "9011: Cache data belongs to devices other than those attached"}, 502 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, 503 "9020: Array missing 2 or more devices with only 1 device present"}, 504 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, 505 "9021: Array missing 2 or more devices with 2 or more devices present"}, 506 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, 507 "9022: Exposed array is missing a required device"}, 508 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, 509 "9023: Array member(s) not at required physical locations"}, 510 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, 511 "9024: Array not functional due to present hardware configuration"}, 512 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, 513 "9026: Array not functional due to present hardware configuration"}, 514 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, 515 "9027: Array is missing a device and parity is out of sync"}, 516 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, 517 "9028: Maximum number of arrays already exist"}, 518 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, 519 "9050: Required cache data cannot be located for a disk unit"}, 520 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, 521 "9052: Cache data exists for a device that has been modified"}, 522 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, 523 "9054: IOA resources not available due to previous problems"}, 524 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, 525 "9092: Disk unit requires initialization before use"}, 526 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, 527 "9029: Incorrect hardware configuration change has been detected"}, 528 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, 529 "9060: One or more disk pairs are missing from an array"}, 530 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, 531 "9061: One or more disks are missing from an array"}, 532 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, 533 "9062: One or more disks are missing from an array"}, 534 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, 535 "9063: Maximum number of functional arrays has been exceeded"}, 536 {0x07279A00, 0, 0, 537 "Data protect, other volume set problem"}, 538 {0x0B260000, 0, 0, 539 "Aborted command, invalid descriptor"}, 540 {0x0B3F9000, 0, 0, 541 "Target operating conditions have changed, dual adapter takeover"}, 542 {0x0B530200, 0, 0, 543 "Aborted command, medium removal prevented"}, 544 {0x0B5A0000, 0, 0, 545 "Command terminated by host"}, 546 {0x0B5B8000, 0, 0, 547 "Aborted command, command terminated by host"} 548 }; 549 550 static const struct ipr_ses_table_entry ipr_ses_table[] = { 551 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, 552 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, 553 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ 554 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ 555 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ 556 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ 557 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, 558 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, 559 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 560 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, 561 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, 562 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, 563 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } 564 }; 565 566 /* 567 * Function Prototypes 568 */ 569 static int ipr_reset_alert(struct ipr_cmnd *); 570 static void ipr_process_ccn(struct ipr_cmnd *); 571 static void ipr_process_error(struct ipr_cmnd *); 572 static void ipr_reset_ioa_job(struct ipr_cmnd *); 573 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, 574 enum ipr_shutdown_type); 575 576 #ifdef CONFIG_SCSI_IPR_TRACE 577 /** 578 * ipr_trc_hook - Add a trace entry to the driver trace 579 * @ipr_cmd: ipr command struct 580 * @type: trace type 581 * @add_data: additional data 582 * 583 * Return value: 584 * none 585 **/ 586 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, 587 u8 type, u32 add_data) 588 { 589 struct ipr_trace_entry *trace_entry; 590 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 591 unsigned int trace_index; 592 593 trace_index = atomic_add_return(1, &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK; 594 trace_entry = &ioa_cfg->trace[trace_index]; 595 trace_entry->time = jiffies; 596 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; 597 trace_entry->type = type; 598 if (ipr_cmd->ioa_cfg->sis64) 599 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; 600 else 601 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; 602 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; 603 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; 604 trace_entry->u.add_data = add_data; 605 wmb(); 606 } 607 #else 608 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0) 609 #endif 610 611 /** 612 * ipr_lock_and_done - Acquire lock and complete command 613 * @ipr_cmd: ipr command struct 614 * 615 * Return value: 616 * none 617 **/ 618 static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd) 619 { 620 unsigned long lock_flags; 621 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 622 623 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 624 ipr_cmd->done(ipr_cmd); 625 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 626 } 627 628 /** 629 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse 630 * @ipr_cmd: ipr command struct 631 * 632 * Return value: 633 * none 634 **/ 635 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) 636 { 637 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 638 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 639 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 640 dma_addr_t dma_addr = ipr_cmd->dma_addr; 641 int hrrq_id; 642 643 hrrq_id = ioarcb->cmd_pkt.hrrq_id; 644 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 645 ioarcb->cmd_pkt.hrrq_id = hrrq_id; 646 ioarcb->data_transfer_length = 0; 647 ioarcb->read_data_transfer_length = 0; 648 ioarcb->ioadl_len = 0; 649 ioarcb->read_ioadl_len = 0; 650 651 if (ipr_cmd->ioa_cfg->sis64) { 652 ioarcb->u.sis64_addr_data.data_ioadl_addr = 653 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 654 ioasa64->u.gata.status = 0; 655 } else { 656 ioarcb->write_ioadl_addr = 657 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 658 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 659 ioasa->u.gata.status = 0; 660 } 661 662 ioasa->hdr.ioasc = 0; 663 ioasa->hdr.residual_data_len = 0; 664 ipr_cmd->scsi_cmd = NULL; 665 ipr_cmd->qc = NULL; 666 ipr_cmd->sense_buffer[0] = 0; 667 ipr_cmd->dma_use_sg = 0; 668 } 669 670 /** 671 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block 672 * @ipr_cmd: ipr command struct 673 * 674 * Return value: 675 * none 676 **/ 677 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd, 678 void (*fast_done) (struct ipr_cmnd *)) 679 { 680 ipr_reinit_ipr_cmnd(ipr_cmd); 681 ipr_cmd->u.scratch = 0; 682 ipr_cmd->sibling = NULL; 683 ipr_cmd->eh_comp = NULL; 684 ipr_cmd->fast_done = fast_done; 685 timer_setup(&ipr_cmd->timer, NULL, 0); 686 } 687 688 /** 689 * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block 690 * @ioa_cfg: ioa config struct 691 * 692 * Return value: 693 * pointer to ipr command struct 694 **/ 695 static 696 struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq) 697 { 698 struct ipr_cmnd *ipr_cmd = NULL; 699 700 if (likely(!list_empty(&hrrq->hrrq_free_q))) { 701 ipr_cmd = list_entry(hrrq->hrrq_free_q.next, 702 struct ipr_cmnd, queue); 703 list_del(&ipr_cmd->queue); 704 } 705 706 707 return ipr_cmd; 708 } 709 710 /** 711 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it 712 * @ioa_cfg: ioa config struct 713 * 714 * Return value: 715 * pointer to ipr command struct 716 **/ 717 static 718 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) 719 { 720 struct ipr_cmnd *ipr_cmd = 721 __ipr_get_free_ipr_cmnd(&ioa_cfg->hrrq[IPR_INIT_HRRQ]); 722 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done); 723 return ipr_cmd; 724 } 725 726 /** 727 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts 728 * @ioa_cfg: ioa config struct 729 * @clr_ints: interrupts to clear 730 * 731 * This function masks all interrupts on the adapter, then clears the 732 * interrupts specified in the mask 733 * 734 * Return value: 735 * none 736 **/ 737 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, 738 u32 clr_ints) 739 { 740 volatile u32 int_reg; 741 int i; 742 743 /* Stop new interrupts */ 744 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 745 spin_lock(&ioa_cfg->hrrq[i]._lock); 746 ioa_cfg->hrrq[i].allow_interrupts = 0; 747 spin_unlock(&ioa_cfg->hrrq[i]._lock); 748 } 749 750 /* Set interrupt mask to stop all new interrupts */ 751 if (ioa_cfg->sis64) 752 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); 753 else 754 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); 755 756 /* Clear any pending interrupts */ 757 if (ioa_cfg->sis64) 758 writel(~0, ioa_cfg->regs.clr_interrupt_reg); 759 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); 760 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 761 } 762 763 /** 764 * ipr_save_pcix_cmd_reg - Save PCI-X command register 765 * @ioa_cfg: ioa config struct 766 * 767 * Return value: 768 * 0 on success / -EIO on failure 769 **/ 770 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 771 { 772 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 773 774 if (pcix_cmd_reg == 0) 775 return 0; 776 777 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 778 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 779 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); 780 return -EIO; 781 } 782 783 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; 784 return 0; 785 } 786 787 /** 788 * ipr_set_pcix_cmd_reg - Setup PCI-X command register 789 * @ioa_cfg: ioa config struct 790 * 791 * Return value: 792 * 0 on success / -EIO on failure 793 **/ 794 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) 795 { 796 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); 797 798 if (pcix_cmd_reg) { 799 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, 800 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { 801 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); 802 return -EIO; 803 } 804 } 805 806 return 0; 807 } 808 809 /** 810 * __ipr_sata_eh_done - done function for aborted SATA commands 811 * @ipr_cmd: ipr command struct 812 * 813 * This function is invoked for ops generated to SATA 814 * devices which are being aborted. 815 * 816 * Return value: 817 * none 818 **/ 819 static void __ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 820 { 821 struct ata_queued_cmd *qc = ipr_cmd->qc; 822 struct ipr_sata_port *sata_port = qc->ap->private_data; 823 824 qc->err_mask |= AC_ERR_OTHER; 825 sata_port->ioasa.status |= ATA_BUSY; 826 ata_qc_complete(qc); 827 if (ipr_cmd->eh_comp) 828 complete(ipr_cmd->eh_comp); 829 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 830 } 831 832 /** 833 * ipr_sata_eh_done - done function for aborted SATA commands 834 * @ipr_cmd: ipr command struct 835 * 836 * This function is invoked for ops generated to SATA 837 * devices which are being aborted. 838 * 839 * Return value: 840 * none 841 **/ 842 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) 843 { 844 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; 845 unsigned long hrrq_flags; 846 847 spin_lock_irqsave(&hrrq->_lock, hrrq_flags); 848 __ipr_sata_eh_done(ipr_cmd); 849 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags); 850 } 851 852 /** 853 * __ipr_scsi_eh_done - mid-layer done function for aborted ops 854 * @ipr_cmd: ipr command struct 855 * 856 * This function is invoked by the interrupt handler for 857 * ops generated by the SCSI mid-layer which are being aborted. 858 * 859 * Return value: 860 * none 861 **/ 862 static void __ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 863 { 864 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 865 866 scsi_cmd->result |= (DID_ERROR << 16); 867 868 scsi_dma_unmap(ipr_cmd->scsi_cmd); 869 scsi_cmd->scsi_done(scsi_cmd); 870 if (ipr_cmd->eh_comp) 871 complete(ipr_cmd->eh_comp); 872 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 873 } 874 875 /** 876 * ipr_scsi_eh_done - mid-layer done function for aborted ops 877 * @ipr_cmd: ipr command struct 878 * 879 * This function is invoked by the interrupt handler for 880 * ops generated by the SCSI mid-layer which are being aborted. 881 * 882 * Return value: 883 * none 884 **/ 885 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) 886 { 887 unsigned long hrrq_flags; 888 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; 889 890 spin_lock_irqsave(&hrrq->_lock, hrrq_flags); 891 __ipr_scsi_eh_done(ipr_cmd); 892 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags); 893 } 894 895 /** 896 * ipr_fail_all_ops - Fails all outstanding ops. 897 * @ioa_cfg: ioa config struct 898 * 899 * This function fails all outstanding ops. 900 * 901 * Return value: 902 * none 903 **/ 904 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) 905 { 906 struct ipr_cmnd *ipr_cmd, *temp; 907 struct ipr_hrr_queue *hrrq; 908 909 ENTER; 910 for_each_hrrq(hrrq, ioa_cfg) { 911 spin_lock(&hrrq->_lock); 912 list_for_each_entry_safe(ipr_cmd, 913 temp, &hrrq->hrrq_pending_q, queue) { 914 list_del(&ipr_cmd->queue); 915 916 ipr_cmd->s.ioasa.hdr.ioasc = 917 cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); 918 ipr_cmd->s.ioasa.hdr.ilid = 919 cpu_to_be32(IPR_DRIVER_ILID); 920 921 if (ipr_cmd->scsi_cmd) 922 ipr_cmd->done = __ipr_scsi_eh_done; 923 else if (ipr_cmd->qc) 924 ipr_cmd->done = __ipr_sata_eh_done; 925 926 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, 927 IPR_IOASC_IOA_WAS_RESET); 928 del_timer(&ipr_cmd->timer); 929 ipr_cmd->done(ipr_cmd); 930 } 931 spin_unlock(&hrrq->_lock); 932 } 933 LEAVE; 934 } 935 936 /** 937 * ipr_send_command - Send driver initiated requests. 938 * @ipr_cmd: ipr command struct 939 * 940 * This function sends a command to the adapter using the correct write call. 941 * In the case of sis64, calculate the ioarcb size required. Then or in the 942 * appropriate bits. 943 * 944 * Return value: 945 * none 946 **/ 947 static void ipr_send_command(struct ipr_cmnd *ipr_cmd) 948 { 949 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 950 dma_addr_t send_dma_addr = ipr_cmd->dma_addr; 951 952 if (ioa_cfg->sis64) { 953 /* The default size is 256 bytes */ 954 send_dma_addr |= 0x1; 955 956 /* If the number of ioadls * size of ioadl > 128 bytes, 957 then use a 512 byte ioarcb */ 958 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) 959 send_dma_addr |= 0x4; 960 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 961 } else 962 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); 963 } 964 965 /** 966 * ipr_do_req - Send driver initiated requests. 967 * @ipr_cmd: ipr command struct 968 * @done: done function 969 * @timeout_func: timeout function 970 * @timeout: timeout value 971 * 972 * This function sends the specified command to the adapter with the 973 * timeout given. The done function is invoked on command completion. 974 * 975 * Return value: 976 * none 977 **/ 978 static void ipr_do_req(struct ipr_cmnd *ipr_cmd, 979 void (*done) (struct ipr_cmnd *), 980 void (*timeout_func) (struct timer_list *), u32 timeout) 981 { 982 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 983 984 ipr_cmd->done = done; 985 986 ipr_cmd->timer.expires = jiffies + timeout; 987 ipr_cmd->timer.function = timeout_func; 988 989 add_timer(&ipr_cmd->timer); 990 991 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); 992 993 ipr_send_command(ipr_cmd); 994 } 995 996 /** 997 * ipr_internal_cmd_done - Op done function for an internally generated op. 998 * @ipr_cmd: ipr command struct 999 * 1000 * This function is the op done function for an internally generated, 1001 * blocking op. It simply wakes the sleeping thread. 1002 * 1003 * Return value: 1004 * none 1005 **/ 1006 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) 1007 { 1008 if (ipr_cmd->sibling) 1009 ipr_cmd->sibling = NULL; 1010 else 1011 complete(&ipr_cmd->completion); 1012 } 1013 1014 /** 1015 * ipr_init_ioadl - initialize the ioadl for the correct SIS type 1016 * @ipr_cmd: ipr command struct 1017 * @dma_addr: dma address 1018 * @len: transfer length 1019 * @flags: ioadl flag value 1020 * 1021 * This function initializes an ioadl in the case where there is only a single 1022 * descriptor. 1023 * 1024 * Return value: 1025 * nothing 1026 **/ 1027 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, 1028 u32 len, int flags) 1029 { 1030 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 1031 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 1032 1033 ipr_cmd->dma_use_sg = 1; 1034 1035 if (ipr_cmd->ioa_cfg->sis64) { 1036 ioadl64->flags = cpu_to_be32(flags); 1037 ioadl64->data_len = cpu_to_be32(len); 1038 ioadl64->address = cpu_to_be64(dma_addr); 1039 1040 ipr_cmd->ioarcb.ioadl_len = 1041 cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); 1042 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 1043 } else { 1044 ioadl->flags_and_data_len = cpu_to_be32(flags | len); 1045 ioadl->address = cpu_to_be32(dma_addr); 1046 1047 if (flags == IPR_IOADL_FLAGS_READ_LAST) { 1048 ipr_cmd->ioarcb.read_ioadl_len = 1049 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 1050 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); 1051 } else { 1052 ipr_cmd->ioarcb.ioadl_len = 1053 cpu_to_be32(sizeof(struct ipr_ioadl_desc)); 1054 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); 1055 } 1056 } 1057 } 1058 1059 /** 1060 * ipr_send_blocking_cmd - Send command and sleep on its completion. 1061 * @ipr_cmd: ipr command struct 1062 * @timeout_func: function to invoke if command times out 1063 * @timeout: timeout 1064 * 1065 * Return value: 1066 * none 1067 **/ 1068 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, 1069 void (*timeout_func) (struct timer_list *), 1070 u32 timeout) 1071 { 1072 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1073 1074 init_completion(&ipr_cmd->completion); 1075 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); 1076 1077 spin_unlock_irq(ioa_cfg->host->host_lock); 1078 wait_for_completion(&ipr_cmd->completion); 1079 spin_lock_irq(ioa_cfg->host->host_lock); 1080 } 1081 1082 static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg) 1083 { 1084 unsigned int hrrq; 1085 1086 if (ioa_cfg->hrrq_num == 1) 1087 hrrq = 0; 1088 else { 1089 hrrq = atomic_add_return(1, &ioa_cfg->hrrq_index); 1090 hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1; 1091 } 1092 return hrrq; 1093 } 1094 1095 /** 1096 * ipr_send_hcam - Send an HCAM to the adapter. 1097 * @ioa_cfg: ioa config struct 1098 * @type: HCAM type 1099 * @hostrcb: hostrcb struct 1100 * 1101 * This function will send a Host Controlled Async command to the adapter. 1102 * If HCAMs are currently not allowed to be issued to the adapter, it will 1103 * place the hostrcb on the free queue. 1104 * 1105 * Return value: 1106 * none 1107 **/ 1108 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, 1109 struct ipr_hostrcb *hostrcb) 1110 { 1111 struct ipr_cmnd *ipr_cmd; 1112 struct ipr_ioarcb *ioarcb; 1113 1114 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { 1115 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 1116 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 1117 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); 1118 1119 ipr_cmd->u.hostrcb = hostrcb; 1120 ioarcb = &ipr_cmd->ioarcb; 1121 1122 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 1123 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; 1124 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; 1125 ioarcb->cmd_pkt.cdb[1] = type; 1126 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; 1127 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; 1128 1129 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, 1130 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); 1131 1132 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) 1133 ipr_cmd->done = ipr_process_ccn; 1134 else 1135 ipr_cmd->done = ipr_process_error; 1136 1137 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); 1138 1139 ipr_send_command(ipr_cmd); 1140 } else { 1141 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 1142 } 1143 } 1144 1145 /** 1146 * ipr_update_ata_class - Update the ata class in the resource entry 1147 * @res: resource entry struct 1148 * @proto: cfgte device bus protocol value 1149 * 1150 * Return value: 1151 * none 1152 **/ 1153 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) 1154 { 1155 switch (proto) { 1156 case IPR_PROTO_SATA: 1157 case IPR_PROTO_SAS_STP: 1158 res->ata_class = ATA_DEV_ATA; 1159 break; 1160 case IPR_PROTO_SATA_ATAPI: 1161 case IPR_PROTO_SAS_STP_ATAPI: 1162 res->ata_class = ATA_DEV_ATAPI; 1163 break; 1164 default: 1165 res->ata_class = ATA_DEV_UNKNOWN; 1166 break; 1167 } 1168 } 1169 1170 /** 1171 * ipr_init_res_entry - Initialize a resource entry struct. 1172 * @res: resource entry struct 1173 * @cfgtew: config table entry wrapper struct 1174 * 1175 * Return value: 1176 * none 1177 **/ 1178 static void ipr_init_res_entry(struct ipr_resource_entry *res, 1179 struct ipr_config_table_entry_wrapper *cfgtew) 1180 { 1181 int found = 0; 1182 unsigned int proto; 1183 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1184 struct ipr_resource_entry *gscsi_res = NULL; 1185 1186 res->needs_sync_complete = 0; 1187 res->in_erp = 0; 1188 res->add_to_ml = 0; 1189 res->del_from_ml = 0; 1190 res->resetting_device = 0; 1191 res->reset_occurred = 0; 1192 res->sdev = NULL; 1193 res->sata_port = NULL; 1194 1195 if (ioa_cfg->sis64) { 1196 proto = cfgtew->u.cfgte64->proto; 1197 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); 1198 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); 1199 res->qmodel = IPR_QUEUEING_MODEL64(res); 1200 res->type = cfgtew->u.cfgte64->res_type; 1201 1202 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1203 sizeof(res->res_path)); 1204 1205 res->bus = 0; 1206 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1207 sizeof(res->dev_lun.scsi_lun)); 1208 res->lun = scsilun_to_int(&res->dev_lun); 1209 1210 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1211 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { 1212 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { 1213 found = 1; 1214 res->target = gscsi_res->target; 1215 break; 1216 } 1217 } 1218 if (!found) { 1219 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1220 ioa_cfg->max_devs_supported); 1221 set_bit(res->target, ioa_cfg->target_ids); 1222 } 1223 } else if (res->type == IPR_RES_TYPE_IOAFP) { 1224 res->bus = IPR_IOAFP_VIRTUAL_BUS; 1225 res->target = 0; 1226 } else if (res->type == IPR_RES_TYPE_ARRAY) { 1227 res->bus = IPR_ARRAY_VIRTUAL_BUS; 1228 res->target = find_first_zero_bit(ioa_cfg->array_ids, 1229 ioa_cfg->max_devs_supported); 1230 set_bit(res->target, ioa_cfg->array_ids); 1231 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { 1232 res->bus = IPR_VSET_VIRTUAL_BUS; 1233 res->target = find_first_zero_bit(ioa_cfg->vset_ids, 1234 ioa_cfg->max_devs_supported); 1235 set_bit(res->target, ioa_cfg->vset_ids); 1236 } else { 1237 res->target = find_first_zero_bit(ioa_cfg->target_ids, 1238 ioa_cfg->max_devs_supported); 1239 set_bit(res->target, ioa_cfg->target_ids); 1240 } 1241 } else { 1242 proto = cfgtew->u.cfgte->proto; 1243 res->qmodel = IPR_QUEUEING_MODEL(res); 1244 res->flags = cfgtew->u.cfgte->flags; 1245 if (res->flags & IPR_IS_IOA_RESOURCE) 1246 res->type = IPR_RES_TYPE_IOAFP; 1247 else 1248 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1249 1250 res->bus = cfgtew->u.cfgte->res_addr.bus; 1251 res->target = cfgtew->u.cfgte->res_addr.target; 1252 res->lun = cfgtew->u.cfgte->res_addr.lun; 1253 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn); 1254 } 1255 1256 ipr_update_ata_class(res, proto); 1257 } 1258 1259 /** 1260 * ipr_is_same_device - Determine if two devices are the same. 1261 * @res: resource entry struct 1262 * @cfgtew: config table entry wrapper struct 1263 * 1264 * Return value: 1265 * 1 if the devices are the same / 0 otherwise 1266 **/ 1267 static int ipr_is_same_device(struct ipr_resource_entry *res, 1268 struct ipr_config_table_entry_wrapper *cfgtew) 1269 { 1270 if (res->ioa_cfg->sis64) { 1271 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, 1272 sizeof(cfgtew->u.cfgte64->dev_id)) && 1273 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1274 sizeof(cfgtew->u.cfgte64->lun))) { 1275 return 1; 1276 } 1277 } else { 1278 if (res->bus == cfgtew->u.cfgte->res_addr.bus && 1279 res->target == cfgtew->u.cfgte->res_addr.target && 1280 res->lun == cfgtew->u.cfgte->res_addr.lun) 1281 return 1; 1282 } 1283 1284 return 0; 1285 } 1286 1287 /** 1288 * __ipr_format_res_path - Format the resource path for printing. 1289 * @res_path: resource path 1290 * @buf: buffer 1291 * @len: length of buffer provided 1292 * 1293 * Return value: 1294 * pointer to buffer 1295 **/ 1296 static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len) 1297 { 1298 int i; 1299 char *p = buffer; 1300 1301 *p = '\0'; 1302 p += scnprintf(p, buffer + len - p, "%02X", res_path[0]); 1303 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++) 1304 p += scnprintf(p, buffer + len - p, "-%02X", res_path[i]); 1305 1306 return buffer; 1307 } 1308 1309 /** 1310 * ipr_format_res_path - Format the resource path for printing. 1311 * @ioa_cfg: ioa config struct 1312 * @res_path: resource path 1313 * @buf: buffer 1314 * @len: length of buffer provided 1315 * 1316 * Return value: 1317 * pointer to buffer 1318 **/ 1319 static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg, 1320 u8 *res_path, char *buffer, int len) 1321 { 1322 char *p = buffer; 1323 1324 *p = '\0'; 1325 p += scnprintf(p, buffer + len - p, "%d/", ioa_cfg->host->host_no); 1326 __ipr_format_res_path(res_path, p, len - (buffer - p)); 1327 return buffer; 1328 } 1329 1330 /** 1331 * ipr_update_res_entry - Update the resource entry. 1332 * @res: resource entry struct 1333 * @cfgtew: config table entry wrapper struct 1334 * 1335 * Return value: 1336 * none 1337 **/ 1338 static void ipr_update_res_entry(struct ipr_resource_entry *res, 1339 struct ipr_config_table_entry_wrapper *cfgtew) 1340 { 1341 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1342 unsigned int proto; 1343 int new_path = 0; 1344 1345 if (res->ioa_cfg->sis64) { 1346 res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); 1347 res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); 1348 res->type = cfgtew->u.cfgte64->res_type; 1349 1350 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, 1351 sizeof(struct ipr_std_inq_data)); 1352 1353 res->qmodel = IPR_QUEUEING_MODEL64(res); 1354 proto = cfgtew->u.cfgte64->proto; 1355 res->res_handle = cfgtew->u.cfgte64->res_handle; 1356 res->dev_id = cfgtew->u.cfgte64->dev_id; 1357 1358 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, 1359 sizeof(res->dev_lun.scsi_lun)); 1360 1361 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, 1362 sizeof(res->res_path))) { 1363 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, 1364 sizeof(res->res_path)); 1365 new_path = 1; 1366 } 1367 1368 if (res->sdev && new_path) 1369 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", 1370 ipr_format_res_path(res->ioa_cfg, 1371 res->res_path, buffer, sizeof(buffer))); 1372 } else { 1373 res->flags = cfgtew->u.cfgte->flags; 1374 if (res->flags & IPR_IS_IOA_RESOURCE) 1375 res->type = IPR_RES_TYPE_IOAFP; 1376 else 1377 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; 1378 1379 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, 1380 sizeof(struct ipr_std_inq_data)); 1381 1382 res->qmodel = IPR_QUEUEING_MODEL(res); 1383 proto = cfgtew->u.cfgte->proto; 1384 res->res_handle = cfgtew->u.cfgte->res_handle; 1385 } 1386 1387 ipr_update_ata_class(res, proto); 1388 } 1389 1390 /** 1391 * ipr_clear_res_target - Clear the bit in the bit map representing the target 1392 * for the resource. 1393 * @res: resource entry struct 1394 * @cfgtew: config table entry wrapper struct 1395 * 1396 * Return value: 1397 * none 1398 **/ 1399 static void ipr_clear_res_target(struct ipr_resource_entry *res) 1400 { 1401 struct ipr_resource_entry *gscsi_res = NULL; 1402 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; 1403 1404 if (!ioa_cfg->sis64) 1405 return; 1406 1407 if (res->bus == IPR_ARRAY_VIRTUAL_BUS) 1408 clear_bit(res->target, ioa_cfg->array_ids); 1409 else if (res->bus == IPR_VSET_VIRTUAL_BUS) 1410 clear_bit(res->target, ioa_cfg->vset_ids); 1411 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { 1412 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) 1413 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) 1414 return; 1415 clear_bit(res->target, ioa_cfg->target_ids); 1416 1417 } else if (res->bus == 0) 1418 clear_bit(res->target, ioa_cfg->target_ids); 1419 } 1420 1421 /** 1422 * ipr_handle_config_change - Handle a config change from the adapter 1423 * @ioa_cfg: ioa config struct 1424 * @hostrcb: hostrcb 1425 * 1426 * Return value: 1427 * none 1428 **/ 1429 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, 1430 struct ipr_hostrcb *hostrcb) 1431 { 1432 struct ipr_resource_entry *res = NULL; 1433 struct ipr_config_table_entry_wrapper cfgtew; 1434 __be32 cc_res_handle; 1435 1436 u32 is_ndn = 1; 1437 1438 if (ioa_cfg->sis64) { 1439 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; 1440 cc_res_handle = cfgtew.u.cfgte64->res_handle; 1441 } else { 1442 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; 1443 cc_res_handle = cfgtew.u.cfgte->res_handle; 1444 } 1445 1446 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 1447 if (res->res_handle == cc_res_handle) { 1448 is_ndn = 0; 1449 break; 1450 } 1451 } 1452 1453 if (is_ndn) { 1454 if (list_empty(&ioa_cfg->free_res_q)) { 1455 ipr_send_hcam(ioa_cfg, 1456 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 1457 hostrcb); 1458 return; 1459 } 1460 1461 res = list_entry(ioa_cfg->free_res_q.next, 1462 struct ipr_resource_entry, queue); 1463 1464 list_del(&res->queue); 1465 ipr_init_res_entry(res, &cfgtew); 1466 list_add_tail(&res->queue, &ioa_cfg->used_res_q); 1467 } 1468 1469 ipr_update_res_entry(res, &cfgtew); 1470 1471 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { 1472 if (res->sdev) { 1473 res->del_from_ml = 1; 1474 res->res_handle = IPR_INVALID_RES_HANDLE; 1475 schedule_work(&ioa_cfg->work_q); 1476 } else { 1477 ipr_clear_res_target(res); 1478 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 1479 } 1480 } else if (!res->sdev || res->del_from_ml) { 1481 res->add_to_ml = 1; 1482 schedule_work(&ioa_cfg->work_q); 1483 } 1484 1485 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1486 } 1487 1488 /** 1489 * ipr_process_ccn - Op done function for a CCN. 1490 * @ipr_cmd: ipr command struct 1491 * 1492 * This function is the op done function for a configuration 1493 * change notification host controlled async from the adapter. 1494 * 1495 * Return value: 1496 * none 1497 **/ 1498 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) 1499 { 1500 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 1501 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 1502 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 1503 1504 list_del_init(&hostrcb->queue); 1505 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 1506 1507 if (ioasc) { 1508 if (ioasc != IPR_IOASC_IOA_WAS_RESET && 1509 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) 1510 dev_err(&ioa_cfg->pdev->dev, 1511 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 1512 1513 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); 1514 } else { 1515 ipr_handle_config_change(ioa_cfg, hostrcb); 1516 } 1517 } 1518 1519 /** 1520 * strip_and_pad_whitespace - Strip and pad trailing whitespace. 1521 * @i: index into buffer 1522 * @buf: string to modify 1523 * 1524 * This function will strip all trailing whitespace, pad the end 1525 * of the string with a single space, and NULL terminate the string. 1526 * 1527 * Return value: 1528 * new length of string 1529 **/ 1530 static int strip_and_pad_whitespace(int i, char *buf) 1531 { 1532 while (i && buf[i] == ' ') 1533 i--; 1534 buf[i+1] = ' '; 1535 buf[i+2] = '\0'; 1536 return i + 2; 1537 } 1538 1539 /** 1540 * ipr_log_vpd_compact - Log the passed extended VPD compactly. 1541 * @prefix: string to print at start of printk 1542 * @hostrcb: hostrcb pointer 1543 * @vpd: vendor/product id/sn struct 1544 * 1545 * Return value: 1546 * none 1547 **/ 1548 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1549 struct ipr_vpd *vpd) 1550 { 1551 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; 1552 int i = 0; 1553 1554 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1555 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); 1556 1557 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); 1558 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); 1559 1560 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); 1561 buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; 1562 1563 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); 1564 } 1565 1566 /** 1567 * ipr_log_vpd - Log the passed VPD to the error log. 1568 * @vpd: vendor/product id/sn struct 1569 * 1570 * Return value: 1571 * none 1572 **/ 1573 static void ipr_log_vpd(struct ipr_vpd *vpd) 1574 { 1575 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN 1576 + IPR_SERIAL_NUM_LEN]; 1577 1578 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); 1579 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, 1580 IPR_PROD_ID_LEN); 1581 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; 1582 ipr_err("Vendor/Product ID: %s\n", buffer); 1583 1584 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); 1585 buffer[IPR_SERIAL_NUM_LEN] = '\0'; 1586 ipr_err(" Serial Number: %s\n", buffer); 1587 } 1588 1589 /** 1590 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. 1591 * @prefix: string to print at start of printk 1592 * @hostrcb: hostrcb pointer 1593 * @vpd: vendor/product id/sn/wwn struct 1594 * 1595 * Return value: 1596 * none 1597 **/ 1598 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, 1599 struct ipr_ext_vpd *vpd) 1600 { 1601 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); 1602 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, 1603 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); 1604 } 1605 1606 /** 1607 * ipr_log_ext_vpd - Log the passed extended VPD to the error log. 1608 * @vpd: vendor/product id/sn/wwn struct 1609 * 1610 * Return value: 1611 * none 1612 **/ 1613 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) 1614 { 1615 ipr_log_vpd(&vpd->vpd); 1616 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), 1617 be32_to_cpu(vpd->wwid[1])); 1618 } 1619 1620 /** 1621 * ipr_log_enhanced_cache_error - Log a cache error. 1622 * @ioa_cfg: ioa config struct 1623 * @hostrcb: hostrcb struct 1624 * 1625 * Return value: 1626 * none 1627 **/ 1628 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1629 struct ipr_hostrcb *hostrcb) 1630 { 1631 struct ipr_hostrcb_type_12_error *error; 1632 1633 if (ioa_cfg->sis64) 1634 error = &hostrcb->hcam.u.error64.u.type_12_error; 1635 else 1636 error = &hostrcb->hcam.u.error.u.type_12_error; 1637 1638 ipr_err("-----Current Configuration-----\n"); 1639 ipr_err("Cache Directory Card Information:\n"); 1640 ipr_log_ext_vpd(&error->ioa_vpd); 1641 ipr_err("Adapter Card Information:\n"); 1642 ipr_log_ext_vpd(&error->cfc_vpd); 1643 1644 ipr_err("-----Expected Configuration-----\n"); 1645 ipr_err("Cache Directory Card Information:\n"); 1646 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); 1647 ipr_err("Adapter Card Information:\n"); 1648 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); 1649 1650 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1651 be32_to_cpu(error->ioa_data[0]), 1652 be32_to_cpu(error->ioa_data[1]), 1653 be32_to_cpu(error->ioa_data[2])); 1654 } 1655 1656 /** 1657 * ipr_log_cache_error - Log a cache error. 1658 * @ioa_cfg: ioa config struct 1659 * @hostrcb: hostrcb struct 1660 * 1661 * Return value: 1662 * none 1663 **/ 1664 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, 1665 struct ipr_hostrcb *hostrcb) 1666 { 1667 struct ipr_hostrcb_type_02_error *error = 1668 &hostrcb->hcam.u.error.u.type_02_error; 1669 1670 ipr_err("-----Current Configuration-----\n"); 1671 ipr_err("Cache Directory Card Information:\n"); 1672 ipr_log_vpd(&error->ioa_vpd); 1673 ipr_err("Adapter Card Information:\n"); 1674 ipr_log_vpd(&error->cfc_vpd); 1675 1676 ipr_err("-----Expected Configuration-----\n"); 1677 ipr_err("Cache Directory Card Information:\n"); 1678 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); 1679 ipr_err("Adapter Card Information:\n"); 1680 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); 1681 1682 ipr_err("Additional IOA Data: %08X %08X %08X\n", 1683 be32_to_cpu(error->ioa_data[0]), 1684 be32_to_cpu(error->ioa_data[1]), 1685 be32_to_cpu(error->ioa_data[2])); 1686 } 1687 1688 /** 1689 * ipr_log_enhanced_config_error - Log a configuration error. 1690 * @ioa_cfg: ioa config struct 1691 * @hostrcb: hostrcb struct 1692 * 1693 * Return value: 1694 * none 1695 **/ 1696 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, 1697 struct ipr_hostrcb *hostrcb) 1698 { 1699 int errors_logged, i; 1700 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; 1701 struct ipr_hostrcb_type_13_error *error; 1702 1703 error = &hostrcb->hcam.u.error.u.type_13_error; 1704 errors_logged = be32_to_cpu(error->errors_logged); 1705 1706 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1707 be32_to_cpu(error->errors_detected), errors_logged); 1708 1709 dev_entry = error->dev; 1710 1711 for (i = 0; i < errors_logged; i++, dev_entry++) { 1712 ipr_err_separator; 1713 1714 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1715 ipr_log_ext_vpd(&dev_entry->vpd); 1716 1717 ipr_err("-----New Device Information-----\n"); 1718 ipr_log_ext_vpd(&dev_entry->new_vpd); 1719 1720 ipr_err("Cache Directory Card Information:\n"); 1721 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1722 1723 ipr_err("Adapter Card Information:\n"); 1724 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1725 } 1726 } 1727 1728 /** 1729 * ipr_log_sis64_config_error - Log a device error. 1730 * @ioa_cfg: ioa config struct 1731 * @hostrcb: hostrcb struct 1732 * 1733 * Return value: 1734 * none 1735 **/ 1736 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, 1737 struct ipr_hostrcb *hostrcb) 1738 { 1739 int errors_logged, i; 1740 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; 1741 struct ipr_hostrcb_type_23_error *error; 1742 char buffer[IPR_MAX_RES_PATH_LENGTH]; 1743 1744 error = &hostrcb->hcam.u.error64.u.type_23_error; 1745 errors_logged = be32_to_cpu(error->errors_logged); 1746 1747 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1748 be32_to_cpu(error->errors_detected), errors_logged); 1749 1750 dev_entry = error->dev; 1751 1752 for (i = 0; i < errors_logged; i++, dev_entry++) { 1753 ipr_err_separator; 1754 1755 ipr_err("Device %d : %s", i + 1, 1756 __ipr_format_res_path(dev_entry->res_path, 1757 buffer, sizeof(buffer))); 1758 ipr_log_ext_vpd(&dev_entry->vpd); 1759 1760 ipr_err("-----New Device Information-----\n"); 1761 ipr_log_ext_vpd(&dev_entry->new_vpd); 1762 1763 ipr_err("Cache Directory Card Information:\n"); 1764 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); 1765 1766 ipr_err("Adapter Card Information:\n"); 1767 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); 1768 } 1769 } 1770 1771 /** 1772 * ipr_log_config_error - Log a configuration error. 1773 * @ioa_cfg: ioa config struct 1774 * @hostrcb: hostrcb struct 1775 * 1776 * Return value: 1777 * none 1778 **/ 1779 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, 1780 struct ipr_hostrcb *hostrcb) 1781 { 1782 int errors_logged, i; 1783 struct ipr_hostrcb_device_data_entry *dev_entry; 1784 struct ipr_hostrcb_type_03_error *error; 1785 1786 error = &hostrcb->hcam.u.error.u.type_03_error; 1787 errors_logged = be32_to_cpu(error->errors_logged); 1788 1789 ipr_err("Device Errors Detected/Logged: %d/%d\n", 1790 be32_to_cpu(error->errors_detected), errors_logged); 1791 1792 dev_entry = error->dev; 1793 1794 for (i = 0; i < errors_logged; i++, dev_entry++) { 1795 ipr_err_separator; 1796 1797 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); 1798 ipr_log_vpd(&dev_entry->vpd); 1799 1800 ipr_err("-----New Device Information-----\n"); 1801 ipr_log_vpd(&dev_entry->new_vpd); 1802 1803 ipr_err("Cache Directory Card Information:\n"); 1804 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); 1805 1806 ipr_err("Adapter Card Information:\n"); 1807 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); 1808 1809 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", 1810 be32_to_cpu(dev_entry->ioa_data[0]), 1811 be32_to_cpu(dev_entry->ioa_data[1]), 1812 be32_to_cpu(dev_entry->ioa_data[2]), 1813 be32_to_cpu(dev_entry->ioa_data[3]), 1814 be32_to_cpu(dev_entry->ioa_data[4])); 1815 } 1816 } 1817 1818 /** 1819 * ipr_log_enhanced_array_error - Log an array configuration error. 1820 * @ioa_cfg: ioa config struct 1821 * @hostrcb: hostrcb struct 1822 * 1823 * Return value: 1824 * none 1825 **/ 1826 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, 1827 struct ipr_hostrcb *hostrcb) 1828 { 1829 int i, num_entries; 1830 struct ipr_hostrcb_type_14_error *error; 1831 struct ipr_hostrcb_array_data_entry_enhanced *array_entry; 1832 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1833 1834 error = &hostrcb->hcam.u.error.u.type_14_error; 1835 1836 ipr_err_separator; 1837 1838 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1839 error->protection_level, 1840 ioa_cfg->host->host_no, 1841 error->last_func_vset_res_addr.bus, 1842 error->last_func_vset_res_addr.target, 1843 error->last_func_vset_res_addr.lun); 1844 1845 ipr_err_separator; 1846 1847 array_entry = error->array_member; 1848 num_entries = min_t(u32, be32_to_cpu(error->num_entries), 1849 ARRAY_SIZE(error->array_member)); 1850 1851 for (i = 0; i < num_entries; i++, array_entry++) { 1852 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1853 continue; 1854 1855 if (be32_to_cpu(error->exposed_mode_adn) == i) 1856 ipr_err("Exposed Array Member %d:\n", i); 1857 else 1858 ipr_err("Array Member %d:\n", i); 1859 1860 ipr_log_ext_vpd(&array_entry->vpd); 1861 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1862 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1863 "Expected Location"); 1864 1865 ipr_err_separator; 1866 } 1867 } 1868 1869 /** 1870 * ipr_log_array_error - Log an array configuration error. 1871 * @ioa_cfg: ioa config struct 1872 * @hostrcb: hostrcb struct 1873 * 1874 * Return value: 1875 * none 1876 **/ 1877 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, 1878 struct ipr_hostrcb *hostrcb) 1879 { 1880 int i; 1881 struct ipr_hostrcb_type_04_error *error; 1882 struct ipr_hostrcb_array_data_entry *array_entry; 1883 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 1884 1885 error = &hostrcb->hcam.u.error.u.type_04_error; 1886 1887 ipr_err_separator; 1888 1889 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", 1890 error->protection_level, 1891 ioa_cfg->host->host_no, 1892 error->last_func_vset_res_addr.bus, 1893 error->last_func_vset_res_addr.target, 1894 error->last_func_vset_res_addr.lun); 1895 1896 ipr_err_separator; 1897 1898 array_entry = error->array_member; 1899 1900 for (i = 0; i < 18; i++) { 1901 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 1902 continue; 1903 1904 if (be32_to_cpu(error->exposed_mode_adn) == i) 1905 ipr_err("Exposed Array Member %d:\n", i); 1906 else 1907 ipr_err("Array Member %d:\n", i); 1908 1909 ipr_log_vpd(&array_entry->vpd); 1910 1911 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); 1912 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, 1913 "Expected Location"); 1914 1915 ipr_err_separator; 1916 1917 if (i == 9) 1918 array_entry = error->array_member2; 1919 else 1920 array_entry++; 1921 } 1922 } 1923 1924 /** 1925 * ipr_log_hex_data - Log additional hex IOA error data. 1926 * @ioa_cfg: ioa config struct 1927 * @data: IOA error data 1928 * @len: data length 1929 * 1930 * Return value: 1931 * none 1932 **/ 1933 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len) 1934 { 1935 int i; 1936 1937 if (len == 0) 1938 return; 1939 1940 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 1941 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); 1942 1943 for (i = 0; i < len / 4; i += 4) { 1944 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 1945 be32_to_cpu(data[i]), 1946 be32_to_cpu(data[i+1]), 1947 be32_to_cpu(data[i+2]), 1948 be32_to_cpu(data[i+3])); 1949 } 1950 } 1951 1952 /** 1953 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. 1954 * @ioa_cfg: ioa config struct 1955 * @hostrcb: hostrcb struct 1956 * 1957 * Return value: 1958 * none 1959 **/ 1960 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1961 struct ipr_hostrcb *hostrcb) 1962 { 1963 struct ipr_hostrcb_type_17_error *error; 1964 1965 if (ioa_cfg->sis64) 1966 error = &hostrcb->hcam.u.error64.u.type_17_error; 1967 else 1968 error = &hostrcb->hcam.u.error.u.type_17_error; 1969 1970 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1971 strim(error->failure_reason); 1972 1973 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 1974 be32_to_cpu(hostrcb->hcam.u.error.prc)); 1975 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); 1976 ipr_log_hex_data(ioa_cfg, error->data, 1977 be32_to_cpu(hostrcb->hcam.length) - 1978 (offsetof(struct ipr_hostrcb_error, u) + 1979 offsetof(struct ipr_hostrcb_type_17_error, data))); 1980 } 1981 1982 /** 1983 * ipr_log_dual_ioa_error - Log a dual adapter error. 1984 * @ioa_cfg: ioa config struct 1985 * @hostrcb: hostrcb struct 1986 * 1987 * Return value: 1988 * none 1989 **/ 1990 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, 1991 struct ipr_hostrcb *hostrcb) 1992 { 1993 struct ipr_hostrcb_type_07_error *error; 1994 1995 error = &hostrcb->hcam.u.error.u.type_07_error; 1996 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 1997 strim(error->failure_reason); 1998 1999 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, 2000 be32_to_cpu(hostrcb->hcam.u.error.prc)); 2001 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); 2002 ipr_log_hex_data(ioa_cfg, error->data, 2003 be32_to_cpu(hostrcb->hcam.length) - 2004 (offsetof(struct ipr_hostrcb_error, u) + 2005 offsetof(struct ipr_hostrcb_type_07_error, data))); 2006 } 2007 2008 static const struct { 2009 u8 active; 2010 char *desc; 2011 } path_active_desc[] = { 2012 { IPR_PATH_NO_INFO, "Path" }, 2013 { IPR_PATH_ACTIVE, "Active path" }, 2014 { IPR_PATH_NOT_ACTIVE, "Inactive path" } 2015 }; 2016 2017 static const struct { 2018 u8 state; 2019 char *desc; 2020 } path_state_desc[] = { 2021 { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, 2022 { IPR_PATH_HEALTHY, "is healthy" }, 2023 { IPR_PATH_DEGRADED, "is degraded" }, 2024 { IPR_PATH_FAILED, "is failed" } 2025 }; 2026 2027 /** 2028 * ipr_log_fabric_path - Log a fabric path error 2029 * @hostrcb: hostrcb struct 2030 * @fabric: fabric descriptor 2031 * 2032 * Return value: 2033 * none 2034 **/ 2035 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, 2036 struct ipr_hostrcb_fabric_desc *fabric) 2037 { 2038 int i, j; 2039 u8 path_state = fabric->path_state; 2040 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 2041 u8 state = path_state & IPR_PATH_STATE_MASK; 2042 2043 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 2044 if (path_active_desc[i].active != active) 2045 continue; 2046 2047 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 2048 if (path_state_desc[j].state != state) 2049 continue; 2050 2051 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { 2052 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", 2053 path_active_desc[i].desc, path_state_desc[j].desc, 2054 fabric->ioa_port); 2055 } else if (fabric->cascaded_expander == 0xff) { 2056 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", 2057 path_active_desc[i].desc, path_state_desc[j].desc, 2058 fabric->ioa_port, fabric->phy); 2059 } else if (fabric->phy == 0xff) { 2060 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", 2061 path_active_desc[i].desc, path_state_desc[j].desc, 2062 fabric->ioa_port, fabric->cascaded_expander); 2063 } else { 2064 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", 2065 path_active_desc[i].desc, path_state_desc[j].desc, 2066 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 2067 } 2068 return; 2069 } 2070 } 2071 2072 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, 2073 fabric->ioa_port, fabric->cascaded_expander, fabric->phy); 2074 } 2075 2076 /** 2077 * ipr_log64_fabric_path - Log a fabric path error 2078 * @hostrcb: hostrcb struct 2079 * @fabric: fabric descriptor 2080 * 2081 * Return value: 2082 * none 2083 **/ 2084 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, 2085 struct ipr_hostrcb64_fabric_desc *fabric) 2086 { 2087 int i, j; 2088 u8 path_state = fabric->path_state; 2089 u8 active = path_state & IPR_PATH_ACTIVE_MASK; 2090 u8 state = path_state & IPR_PATH_STATE_MASK; 2091 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2092 2093 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { 2094 if (path_active_desc[i].active != active) 2095 continue; 2096 2097 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { 2098 if (path_state_desc[j].state != state) 2099 continue; 2100 2101 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", 2102 path_active_desc[i].desc, path_state_desc[j].desc, 2103 ipr_format_res_path(hostrcb->ioa_cfg, 2104 fabric->res_path, 2105 buffer, sizeof(buffer))); 2106 return; 2107 } 2108 } 2109 2110 ipr_err("Path state=%02X Resource Path=%s\n", path_state, 2111 ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path, 2112 buffer, sizeof(buffer))); 2113 } 2114 2115 static const struct { 2116 u8 type; 2117 char *desc; 2118 } path_type_desc[] = { 2119 { IPR_PATH_CFG_IOA_PORT, "IOA port" }, 2120 { IPR_PATH_CFG_EXP_PORT, "Expander port" }, 2121 { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, 2122 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } 2123 }; 2124 2125 static const struct { 2126 u8 status; 2127 char *desc; 2128 } path_status_desc[] = { 2129 { IPR_PATH_CFG_NO_PROB, "Functional" }, 2130 { IPR_PATH_CFG_DEGRADED, "Degraded" }, 2131 { IPR_PATH_CFG_FAILED, "Failed" }, 2132 { IPR_PATH_CFG_SUSPECT, "Suspect" }, 2133 { IPR_PATH_NOT_DETECTED, "Missing" }, 2134 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } 2135 }; 2136 2137 static const char *link_rate[] = { 2138 "unknown", 2139 "disabled", 2140 "phy reset problem", 2141 "spinup hold", 2142 "port selector", 2143 "unknown", 2144 "unknown", 2145 "unknown", 2146 "1.5Gbps", 2147 "3.0Gbps", 2148 "unknown", 2149 "unknown", 2150 "unknown", 2151 "unknown", 2152 "unknown", 2153 "unknown" 2154 }; 2155 2156 /** 2157 * ipr_log_path_elem - Log a fabric path element. 2158 * @hostrcb: hostrcb struct 2159 * @cfg: fabric path element struct 2160 * 2161 * Return value: 2162 * none 2163 **/ 2164 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, 2165 struct ipr_hostrcb_config_element *cfg) 2166 { 2167 int i, j; 2168 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2169 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2170 2171 if (type == IPR_PATH_CFG_NOT_EXIST) 2172 return; 2173 2174 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2175 if (path_type_desc[i].type != type) 2176 continue; 2177 2178 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2179 if (path_status_desc[j].status != status) 2180 continue; 2181 2182 if (type == IPR_PATH_CFG_IOA_PORT) { 2183 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", 2184 path_status_desc[j].desc, path_type_desc[i].desc, 2185 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2186 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2187 } else { 2188 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { 2189 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", 2190 path_status_desc[j].desc, path_type_desc[i].desc, 2191 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2192 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2193 } else if (cfg->cascaded_expander == 0xff) { 2194 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " 2195 "WWN=%08X%08X\n", path_status_desc[j].desc, 2196 path_type_desc[i].desc, cfg->phy, 2197 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2198 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2199 } else if (cfg->phy == 0xff) { 2200 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " 2201 "WWN=%08X%08X\n", path_status_desc[j].desc, 2202 path_type_desc[i].desc, cfg->cascaded_expander, 2203 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2204 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2205 } else { 2206 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " 2207 "WWN=%08X%08X\n", path_status_desc[j].desc, 2208 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, 2209 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2210 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2211 } 2212 } 2213 return; 2214 } 2215 } 2216 2217 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " 2218 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, 2219 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2220 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2221 } 2222 2223 /** 2224 * ipr_log64_path_elem - Log a fabric path element. 2225 * @hostrcb: hostrcb struct 2226 * @cfg: fabric path element struct 2227 * 2228 * Return value: 2229 * none 2230 **/ 2231 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, 2232 struct ipr_hostrcb64_config_element *cfg) 2233 { 2234 int i, j; 2235 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; 2236 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; 2237 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; 2238 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2239 2240 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) 2241 return; 2242 2243 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { 2244 if (path_type_desc[i].type != type) 2245 continue; 2246 2247 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { 2248 if (path_status_desc[j].status != status) 2249 continue; 2250 2251 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", 2252 path_status_desc[j].desc, path_type_desc[i].desc, 2253 ipr_format_res_path(hostrcb->ioa_cfg, 2254 cfg->res_path, buffer, sizeof(buffer)), 2255 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2256 be32_to_cpu(cfg->wwid[0]), 2257 be32_to_cpu(cfg->wwid[1])); 2258 return; 2259 } 2260 } 2261 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " 2262 "WWN=%08X%08X\n", cfg->type_status, 2263 ipr_format_res_path(hostrcb->ioa_cfg, 2264 cfg->res_path, buffer, sizeof(buffer)), 2265 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], 2266 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); 2267 } 2268 2269 /** 2270 * ipr_log_fabric_error - Log a fabric error. 2271 * @ioa_cfg: ioa config struct 2272 * @hostrcb: hostrcb struct 2273 * 2274 * Return value: 2275 * none 2276 **/ 2277 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2278 struct ipr_hostrcb *hostrcb) 2279 { 2280 struct ipr_hostrcb_type_20_error *error; 2281 struct ipr_hostrcb_fabric_desc *fabric; 2282 struct ipr_hostrcb_config_element *cfg; 2283 int i, add_len; 2284 2285 error = &hostrcb->hcam.u.error.u.type_20_error; 2286 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2287 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2288 2289 add_len = be32_to_cpu(hostrcb->hcam.length) - 2290 (offsetof(struct ipr_hostrcb_error, u) + 2291 offsetof(struct ipr_hostrcb_type_20_error, desc)); 2292 2293 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2294 ipr_log_fabric_path(hostrcb, fabric); 2295 for_each_fabric_cfg(fabric, cfg) 2296 ipr_log_path_elem(hostrcb, cfg); 2297 2298 add_len -= be16_to_cpu(fabric->length); 2299 fabric = (struct ipr_hostrcb_fabric_desc *) 2300 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2301 } 2302 2303 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len); 2304 } 2305 2306 /** 2307 * ipr_log_sis64_array_error - Log a sis64 array error. 2308 * @ioa_cfg: ioa config struct 2309 * @hostrcb: hostrcb struct 2310 * 2311 * Return value: 2312 * none 2313 **/ 2314 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, 2315 struct ipr_hostrcb *hostrcb) 2316 { 2317 int i, num_entries; 2318 struct ipr_hostrcb_type_24_error *error; 2319 struct ipr_hostrcb64_array_data_entry *array_entry; 2320 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2321 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; 2322 2323 error = &hostrcb->hcam.u.error64.u.type_24_error; 2324 2325 ipr_err_separator; 2326 2327 ipr_err("RAID %s Array Configuration: %s\n", 2328 error->protection_level, 2329 ipr_format_res_path(ioa_cfg, error->last_res_path, 2330 buffer, sizeof(buffer))); 2331 2332 ipr_err_separator; 2333 2334 array_entry = error->array_member; 2335 num_entries = min_t(u32, error->num_entries, 2336 ARRAY_SIZE(error->array_member)); 2337 2338 for (i = 0; i < num_entries; i++, array_entry++) { 2339 2340 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) 2341 continue; 2342 2343 if (error->exposed_mode_adn == i) 2344 ipr_err("Exposed Array Member %d:\n", i); 2345 else 2346 ipr_err("Array Member %d:\n", i); 2347 2348 ipr_err("Array Member %d:\n", i); 2349 ipr_log_ext_vpd(&array_entry->vpd); 2350 ipr_err("Current Location: %s\n", 2351 ipr_format_res_path(ioa_cfg, array_entry->res_path, 2352 buffer, sizeof(buffer))); 2353 ipr_err("Expected Location: %s\n", 2354 ipr_format_res_path(ioa_cfg, 2355 array_entry->expected_res_path, 2356 buffer, sizeof(buffer))); 2357 2358 ipr_err_separator; 2359 } 2360 } 2361 2362 /** 2363 * ipr_log_sis64_fabric_error - Log a sis64 fabric error. 2364 * @ioa_cfg: ioa config struct 2365 * @hostrcb: hostrcb struct 2366 * 2367 * Return value: 2368 * none 2369 **/ 2370 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, 2371 struct ipr_hostrcb *hostrcb) 2372 { 2373 struct ipr_hostrcb_type_30_error *error; 2374 struct ipr_hostrcb64_fabric_desc *fabric; 2375 struct ipr_hostrcb64_config_element *cfg; 2376 int i, add_len; 2377 2378 error = &hostrcb->hcam.u.error64.u.type_30_error; 2379 2380 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2381 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); 2382 2383 add_len = be32_to_cpu(hostrcb->hcam.length) - 2384 (offsetof(struct ipr_hostrcb64_error, u) + 2385 offsetof(struct ipr_hostrcb_type_30_error, desc)); 2386 2387 for (i = 0, fabric = error->desc; i < error->num_entries; i++) { 2388 ipr_log64_fabric_path(hostrcb, fabric); 2389 for_each_fabric_cfg(fabric, cfg) 2390 ipr_log64_path_elem(hostrcb, cfg); 2391 2392 add_len -= be16_to_cpu(fabric->length); 2393 fabric = (struct ipr_hostrcb64_fabric_desc *) 2394 ((unsigned long)fabric + be16_to_cpu(fabric->length)); 2395 } 2396 2397 ipr_log_hex_data(ioa_cfg, (__be32 *)fabric, add_len); 2398 } 2399 2400 /** 2401 * ipr_log_sis64_service_required_error - Log a sis64 service required error. 2402 * @ioa_cfg: ioa config struct 2403 * @hostrcb: hostrcb struct 2404 * 2405 * Return value: 2406 * none 2407 **/ 2408 static void ipr_log_sis64_service_required_error(struct ipr_ioa_cfg *ioa_cfg, 2409 struct ipr_hostrcb *hostrcb) 2410 { 2411 struct ipr_hostrcb_type_41_error *error; 2412 2413 error = &hostrcb->hcam.u.error64.u.type_41_error; 2414 2415 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; 2416 ipr_err("Primary Failure Reason: %s\n", error->failure_reason); 2417 ipr_log_hex_data(ioa_cfg, error->data, 2418 be32_to_cpu(hostrcb->hcam.length) - 2419 (offsetof(struct ipr_hostrcb_error, u) + 2420 offsetof(struct ipr_hostrcb_type_41_error, data))); 2421 } 2422 /** 2423 * ipr_log_generic_error - Log an adapter error. 2424 * @ioa_cfg: ioa config struct 2425 * @hostrcb: hostrcb struct 2426 * 2427 * Return value: 2428 * none 2429 **/ 2430 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, 2431 struct ipr_hostrcb *hostrcb) 2432 { 2433 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, 2434 be32_to_cpu(hostrcb->hcam.length)); 2435 } 2436 2437 /** 2438 * ipr_log_sis64_device_error - Log a cache error. 2439 * @ioa_cfg: ioa config struct 2440 * @hostrcb: hostrcb struct 2441 * 2442 * Return value: 2443 * none 2444 **/ 2445 static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg, 2446 struct ipr_hostrcb *hostrcb) 2447 { 2448 struct ipr_hostrcb_type_21_error *error; 2449 char buffer[IPR_MAX_RES_PATH_LENGTH]; 2450 2451 error = &hostrcb->hcam.u.error64.u.type_21_error; 2452 2453 ipr_err("-----Failing Device Information-----\n"); 2454 ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n", 2455 be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]), 2456 be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3])); 2457 ipr_err("Device Resource Path: %s\n", 2458 __ipr_format_res_path(error->res_path, 2459 buffer, sizeof(buffer))); 2460 error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0'; 2461 error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0'; 2462 ipr_err("Primary Problem Description: %s\n", error->primary_problem_desc); 2463 ipr_err("Secondary Problem Description: %s\n", error->second_problem_desc); 2464 ipr_err("SCSI Sense Data:\n"); 2465 ipr_log_hex_data(ioa_cfg, error->sense_data, sizeof(error->sense_data)); 2466 ipr_err("SCSI Command Descriptor Block: \n"); 2467 ipr_log_hex_data(ioa_cfg, error->cdb, sizeof(error->cdb)); 2468 2469 ipr_err("Additional IOA Data:\n"); 2470 ipr_log_hex_data(ioa_cfg, error->ioa_data, be32_to_cpu(error->length_of_error)); 2471 } 2472 2473 /** 2474 * ipr_get_error - Find the specfied IOASC in the ipr_error_table. 2475 * @ioasc: IOASC 2476 * 2477 * This function will return the index of into the ipr_error_table 2478 * for the specified IOASC. If the IOASC is not in the table, 2479 * 0 will be returned, which points to the entry used for unknown errors. 2480 * 2481 * Return value: 2482 * index into the ipr_error_table 2483 **/ 2484 static u32 ipr_get_error(u32 ioasc) 2485 { 2486 int i; 2487 2488 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) 2489 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) 2490 return i; 2491 2492 return 0; 2493 } 2494 2495 /** 2496 * ipr_handle_log_data - Log an adapter error. 2497 * @ioa_cfg: ioa config struct 2498 * @hostrcb: hostrcb struct 2499 * 2500 * This function logs an adapter error to the system. 2501 * 2502 * Return value: 2503 * none 2504 **/ 2505 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, 2506 struct ipr_hostrcb *hostrcb) 2507 { 2508 u32 ioasc; 2509 int error_index; 2510 struct ipr_hostrcb_type_21_error *error; 2511 2512 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) 2513 return; 2514 2515 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) 2516 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); 2517 2518 if (ioa_cfg->sis64) 2519 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2520 else 2521 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2522 2523 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || 2524 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { 2525 /* Tell the midlayer we had a bus reset so it will handle the UA properly */ 2526 scsi_report_bus_reset(ioa_cfg->host, 2527 hostrcb->hcam.u.error.fd_res_addr.bus); 2528 } 2529 2530 error_index = ipr_get_error(ioasc); 2531 2532 if (!ipr_error_table[error_index].log_hcam) 2533 return; 2534 2535 if (ioasc == IPR_IOASC_HW_CMD_FAILED && 2536 hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) { 2537 error = &hostrcb->hcam.u.error64.u.type_21_error; 2538 2539 if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST && 2540 ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) 2541 return; 2542 } 2543 2544 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); 2545 2546 /* Set indication we have logged an error */ 2547 ioa_cfg->errors_logged++; 2548 2549 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) 2550 return; 2551 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) 2552 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); 2553 2554 switch (hostrcb->hcam.overlay_id) { 2555 case IPR_HOST_RCB_OVERLAY_ID_2: 2556 ipr_log_cache_error(ioa_cfg, hostrcb); 2557 break; 2558 case IPR_HOST_RCB_OVERLAY_ID_3: 2559 ipr_log_config_error(ioa_cfg, hostrcb); 2560 break; 2561 case IPR_HOST_RCB_OVERLAY_ID_4: 2562 case IPR_HOST_RCB_OVERLAY_ID_6: 2563 ipr_log_array_error(ioa_cfg, hostrcb); 2564 break; 2565 case IPR_HOST_RCB_OVERLAY_ID_7: 2566 ipr_log_dual_ioa_error(ioa_cfg, hostrcb); 2567 break; 2568 case IPR_HOST_RCB_OVERLAY_ID_12: 2569 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); 2570 break; 2571 case IPR_HOST_RCB_OVERLAY_ID_13: 2572 ipr_log_enhanced_config_error(ioa_cfg, hostrcb); 2573 break; 2574 case IPR_HOST_RCB_OVERLAY_ID_14: 2575 case IPR_HOST_RCB_OVERLAY_ID_16: 2576 ipr_log_enhanced_array_error(ioa_cfg, hostrcb); 2577 break; 2578 case IPR_HOST_RCB_OVERLAY_ID_17: 2579 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); 2580 break; 2581 case IPR_HOST_RCB_OVERLAY_ID_20: 2582 ipr_log_fabric_error(ioa_cfg, hostrcb); 2583 break; 2584 case IPR_HOST_RCB_OVERLAY_ID_21: 2585 ipr_log_sis64_device_error(ioa_cfg, hostrcb); 2586 break; 2587 case IPR_HOST_RCB_OVERLAY_ID_23: 2588 ipr_log_sis64_config_error(ioa_cfg, hostrcb); 2589 break; 2590 case IPR_HOST_RCB_OVERLAY_ID_24: 2591 case IPR_HOST_RCB_OVERLAY_ID_26: 2592 ipr_log_sis64_array_error(ioa_cfg, hostrcb); 2593 break; 2594 case IPR_HOST_RCB_OVERLAY_ID_30: 2595 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); 2596 break; 2597 case IPR_HOST_RCB_OVERLAY_ID_41: 2598 ipr_log_sis64_service_required_error(ioa_cfg, hostrcb); 2599 break; 2600 case IPR_HOST_RCB_OVERLAY_ID_1: 2601 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: 2602 default: 2603 ipr_log_generic_error(ioa_cfg, hostrcb); 2604 break; 2605 } 2606 } 2607 2608 static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa) 2609 { 2610 struct ipr_hostrcb *hostrcb; 2611 2612 hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q, 2613 struct ipr_hostrcb, queue); 2614 2615 if (unlikely(!hostrcb)) { 2616 dev_info(&ioa->pdev->dev, "Reclaiming async error buffers."); 2617 hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q, 2618 struct ipr_hostrcb, queue); 2619 } 2620 2621 list_del_init(&hostrcb->queue); 2622 return hostrcb; 2623 } 2624 2625 /** 2626 * ipr_process_error - Op done function for an adapter error log. 2627 * @ipr_cmd: ipr command struct 2628 * 2629 * This function is the op done function for an error log host 2630 * controlled async from the adapter. It will log the error and 2631 * send the HCAM back to the adapter. 2632 * 2633 * Return value: 2634 * none 2635 **/ 2636 static void ipr_process_error(struct ipr_cmnd *ipr_cmd) 2637 { 2638 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2639 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; 2640 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 2641 u32 fd_ioasc; 2642 2643 if (ioa_cfg->sis64) 2644 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); 2645 else 2646 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 2647 2648 list_del_init(&hostrcb->queue); 2649 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 2650 2651 if (!ioasc) { 2652 ipr_handle_log_data(ioa_cfg, hostrcb); 2653 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) 2654 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 2655 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET && 2656 ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) { 2657 dev_err(&ioa_cfg->pdev->dev, 2658 "Host RCB failed with IOASC: 0x%08X\n", ioasc); 2659 } 2660 2661 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_report_q); 2662 schedule_work(&ioa_cfg->work_q); 2663 hostrcb = ipr_get_free_hostrcb(ioa_cfg); 2664 2665 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); 2666 } 2667 2668 /** 2669 * ipr_timeout - An internally generated op has timed out. 2670 * @ipr_cmd: ipr command struct 2671 * 2672 * This function blocks host requests and initiates an 2673 * adapter reset. 2674 * 2675 * Return value: 2676 * none 2677 **/ 2678 static void ipr_timeout(struct timer_list *t) 2679 { 2680 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); 2681 unsigned long lock_flags = 0; 2682 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2683 2684 ENTER; 2685 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2686 2687 ioa_cfg->errors_logged++; 2688 dev_err(&ioa_cfg->pdev->dev, 2689 "Adapter being reset due to command timeout.\n"); 2690 2691 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2692 ioa_cfg->sdt_state = GET_DUMP; 2693 2694 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) 2695 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2696 2697 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2698 LEAVE; 2699 } 2700 2701 /** 2702 * ipr_oper_timeout - Adapter timed out transitioning to operational 2703 * @ipr_cmd: ipr command struct 2704 * 2705 * This function blocks host requests and initiates an 2706 * adapter reset. 2707 * 2708 * Return value: 2709 * none 2710 **/ 2711 static void ipr_oper_timeout(struct timer_list *t) 2712 { 2713 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); 2714 unsigned long lock_flags = 0; 2715 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 2716 2717 ENTER; 2718 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 2719 2720 ioa_cfg->errors_logged++; 2721 dev_err(&ioa_cfg->pdev->dev, 2722 "Adapter timed out transitioning to operational.\n"); 2723 2724 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 2725 ioa_cfg->sdt_state = GET_DUMP; 2726 2727 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { 2728 if (ipr_fastfail) 2729 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 2730 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 2731 } 2732 2733 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 2734 LEAVE; 2735 } 2736 2737 /** 2738 * ipr_find_ses_entry - Find matching SES in SES table 2739 * @res: resource entry struct of SES 2740 * 2741 * Return value: 2742 * pointer to SES table entry / NULL on failure 2743 **/ 2744 static const struct ipr_ses_table_entry * 2745 ipr_find_ses_entry(struct ipr_resource_entry *res) 2746 { 2747 int i, j, matches; 2748 struct ipr_std_inq_vpids *vpids; 2749 const struct ipr_ses_table_entry *ste = ipr_ses_table; 2750 2751 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { 2752 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { 2753 if (ste->compare_product_id_byte[j] == 'X') { 2754 vpids = &res->std_inq_data.vpids; 2755 if (vpids->product_id[j] == ste->product_id[j]) 2756 matches++; 2757 else 2758 break; 2759 } else 2760 matches++; 2761 } 2762 2763 if (matches == IPR_PROD_ID_LEN) 2764 return ste; 2765 } 2766 2767 return NULL; 2768 } 2769 2770 /** 2771 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus 2772 * @ioa_cfg: ioa config struct 2773 * @bus: SCSI bus 2774 * @bus_width: bus width 2775 * 2776 * Return value: 2777 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz 2778 * For a 2-byte wide SCSI bus, the maximum transfer speed is 2779 * twice the maximum transfer rate (e.g. for a wide enabled bus, 2780 * max 160MHz = max 320MB/sec). 2781 **/ 2782 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) 2783 { 2784 struct ipr_resource_entry *res; 2785 const struct ipr_ses_table_entry *ste; 2786 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); 2787 2788 /* Loop through each config table entry in the config table buffer */ 2789 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 2790 if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) 2791 continue; 2792 2793 if (bus != res->bus) 2794 continue; 2795 2796 if (!(ste = ipr_find_ses_entry(res))) 2797 continue; 2798 2799 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); 2800 } 2801 2802 return max_xfer_rate; 2803 } 2804 2805 /** 2806 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA 2807 * @ioa_cfg: ioa config struct 2808 * @max_delay: max delay in micro-seconds to wait 2809 * 2810 * Waits for an IODEBUG ACK from the IOA, doing busy looping. 2811 * 2812 * Return value: 2813 * 0 on success / other on failure 2814 **/ 2815 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) 2816 { 2817 volatile u32 pcii_reg; 2818 int delay = 1; 2819 2820 /* Read interrupt reg until IOA signals IO Debug Acknowledge */ 2821 while (delay < max_delay) { 2822 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 2823 2824 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) 2825 return 0; 2826 2827 /* udelay cannot be used if delay is more than a few milliseconds */ 2828 if ((delay / 1000) > MAX_UDELAY_MS) 2829 mdelay(delay / 1000); 2830 else 2831 udelay(delay); 2832 2833 delay += delay; 2834 } 2835 return -EIO; 2836 } 2837 2838 /** 2839 * ipr_get_sis64_dump_data_section - Dump IOA memory 2840 * @ioa_cfg: ioa config struct 2841 * @start_addr: adapter address to dump 2842 * @dest: destination kernel buffer 2843 * @length_in_words: length to dump in 4 byte words 2844 * 2845 * Return value: 2846 * 0 on success 2847 **/ 2848 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2849 u32 start_addr, 2850 __be32 *dest, u32 length_in_words) 2851 { 2852 int i; 2853 2854 for (i = 0; i < length_in_words; i++) { 2855 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); 2856 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); 2857 dest++; 2858 } 2859 2860 return 0; 2861 } 2862 2863 /** 2864 * ipr_get_ldump_data_section - Dump IOA memory 2865 * @ioa_cfg: ioa config struct 2866 * @start_addr: adapter address to dump 2867 * @dest: destination kernel buffer 2868 * @length_in_words: length to dump in 4 byte words 2869 * 2870 * Return value: 2871 * 0 on success / -EIO on failure 2872 **/ 2873 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, 2874 u32 start_addr, 2875 __be32 *dest, u32 length_in_words) 2876 { 2877 volatile u32 temp_pcii_reg; 2878 int i, delay = 0; 2879 2880 if (ioa_cfg->sis64) 2881 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, 2882 dest, length_in_words); 2883 2884 /* Write IOA interrupt reg starting LDUMP state */ 2885 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), 2886 ioa_cfg->regs.set_uproc_interrupt_reg32); 2887 2888 /* Wait for IO debug acknowledge */ 2889 if (ipr_wait_iodbg_ack(ioa_cfg, 2890 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { 2891 dev_err(&ioa_cfg->pdev->dev, 2892 "IOA dump long data transfer timeout\n"); 2893 return -EIO; 2894 } 2895 2896 /* Signal LDUMP interlocked - clear IO debug ack */ 2897 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2898 ioa_cfg->regs.clr_interrupt_reg); 2899 2900 /* Write Mailbox with starting address */ 2901 writel(start_addr, ioa_cfg->ioa_mailbox); 2902 2903 /* Signal address valid - clear IOA Reset alert */ 2904 writel(IPR_UPROCI_RESET_ALERT, 2905 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2906 2907 for (i = 0; i < length_in_words; i++) { 2908 /* Wait for IO debug acknowledge */ 2909 if (ipr_wait_iodbg_ack(ioa_cfg, 2910 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { 2911 dev_err(&ioa_cfg->pdev->dev, 2912 "IOA dump short data transfer timeout\n"); 2913 return -EIO; 2914 } 2915 2916 /* Read data from mailbox and increment destination pointer */ 2917 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); 2918 dest++; 2919 2920 /* For all but the last word of data, signal data received */ 2921 if (i < (length_in_words - 1)) { 2922 /* Signal dump data received - Clear IO debug Ack */ 2923 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2924 ioa_cfg->regs.clr_interrupt_reg); 2925 } 2926 } 2927 2928 /* Signal end of block transfer. Set reset alert then clear IO debug ack */ 2929 writel(IPR_UPROCI_RESET_ALERT, 2930 ioa_cfg->regs.set_uproc_interrupt_reg32); 2931 2932 writel(IPR_UPROCI_IO_DEBUG_ALERT, 2933 ioa_cfg->regs.clr_uproc_interrupt_reg32); 2934 2935 /* Signal dump data received - Clear IO debug Ack */ 2936 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, 2937 ioa_cfg->regs.clr_interrupt_reg); 2938 2939 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ 2940 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { 2941 temp_pcii_reg = 2942 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 2943 2944 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) 2945 return 0; 2946 2947 udelay(10); 2948 delay += 10; 2949 } 2950 2951 return 0; 2952 } 2953 2954 #ifdef CONFIG_SCSI_IPR_DUMP 2955 /** 2956 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer 2957 * @ioa_cfg: ioa config struct 2958 * @pci_address: adapter address 2959 * @length: length of data to copy 2960 * 2961 * Copy data from PCI adapter to kernel buffer. 2962 * Note: length MUST be a 4 byte multiple 2963 * Return value: 2964 * 0 on success / other on failure 2965 **/ 2966 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, 2967 unsigned long pci_address, u32 length) 2968 { 2969 int bytes_copied = 0; 2970 int cur_len, rc, rem_len, rem_page_len, max_dump_size; 2971 __be32 *page; 2972 unsigned long lock_flags = 0; 2973 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; 2974 2975 if (ioa_cfg->sis64) 2976 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; 2977 else 2978 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; 2979 2980 while (bytes_copied < length && 2981 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) { 2982 if (ioa_dump->page_offset >= PAGE_SIZE || 2983 ioa_dump->page_offset == 0) { 2984 page = (__be32 *)__get_free_page(GFP_ATOMIC); 2985 2986 if (!page) { 2987 ipr_trace; 2988 return bytes_copied; 2989 } 2990 2991 ioa_dump->page_offset = 0; 2992 ioa_dump->ioa_data[ioa_dump->next_page_index] = page; 2993 ioa_dump->next_page_index++; 2994 } else 2995 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; 2996 2997 rem_len = length - bytes_copied; 2998 rem_page_len = PAGE_SIZE - ioa_dump->page_offset; 2999 cur_len = min(rem_len, rem_page_len); 3000 3001 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3002 if (ioa_cfg->sdt_state == ABORT_DUMP) { 3003 rc = -EIO; 3004 } else { 3005 rc = ipr_get_ldump_data_section(ioa_cfg, 3006 pci_address + bytes_copied, 3007 &page[ioa_dump->page_offset / 4], 3008 (cur_len / sizeof(u32))); 3009 } 3010 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3011 3012 if (!rc) { 3013 ioa_dump->page_offset += cur_len; 3014 bytes_copied += cur_len; 3015 } else { 3016 ipr_trace; 3017 break; 3018 } 3019 schedule(); 3020 } 3021 3022 return bytes_copied; 3023 } 3024 3025 /** 3026 * ipr_init_dump_entry_hdr - Initialize a dump entry header. 3027 * @hdr: dump entry header struct 3028 * 3029 * Return value: 3030 * nothing 3031 **/ 3032 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) 3033 { 3034 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; 3035 hdr->num_elems = 1; 3036 hdr->offset = sizeof(*hdr); 3037 hdr->status = IPR_DUMP_STATUS_SUCCESS; 3038 } 3039 3040 /** 3041 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. 3042 * @ioa_cfg: ioa config struct 3043 * @driver_dump: driver dump struct 3044 * 3045 * Return value: 3046 * nothing 3047 **/ 3048 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, 3049 struct ipr_driver_dump *driver_dump) 3050 { 3051 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3052 3053 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); 3054 driver_dump->ioa_type_entry.hdr.len = 3055 sizeof(struct ipr_dump_ioa_type_entry) - 3056 sizeof(struct ipr_dump_entry_header); 3057 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 3058 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; 3059 driver_dump->ioa_type_entry.type = ioa_cfg->type; 3060 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | 3061 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | 3062 ucode_vpd->minor_release[1]; 3063 driver_dump->hdr.num_entries++; 3064 } 3065 3066 /** 3067 * ipr_dump_version_data - Fill in the driver version in the dump. 3068 * @ioa_cfg: ioa config struct 3069 * @driver_dump: driver dump struct 3070 * 3071 * Return value: 3072 * nothing 3073 **/ 3074 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, 3075 struct ipr_driver_dump *driver_dump) 3076 { 3077 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); 3078 driver_dump->version_entry.hdr.len = 3079 sizeof(struct ipr_dump_version_entry) - 3080 sizeof(struct ipr_dump_entry_header); 3081 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 3082 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; 3083 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); 3084 driver_dump->hdr.num_entries++; 3085 } 3086 3087 /** 3088 * ipr_dump_trace_data - Fill in the IOA trace in the dump. 3089 * @ioa_cfg: ioa config struct 3090 * @driver_dump: driver dump struct 3091 * 3092 * Return value: 3093 * nothing 3094 **/ 3095 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, 3096 struct ipr_driver_dump *driver_dump) 3097 { 3098 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); 3099 driver_dump->trace_entry.hdr.len = 3100 sizeof(struct ipr_dump_trace_entry) - 3101 sizeof(struct ipr_dump_entry_header); 3102 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 3103 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; 3104 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); 3105 driver_dump->hdr.num_entries++; 3106 } 3107 3108 /** 3109 * ipr_dump_location_data - Fill in the IOA location in the dump. 3110 * @ioa_cfg: ioa config struct 3111 * @driver_dump: driver dump struct 3112 * 3113 * Return value: 3114 * nothing 3115 **/ 3116 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, 3117 struct ipr_driver_dump *driver_dump) 3118 { 3119 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); 3120 driver_dump->location_entry.hdr.len = 3121 sizeof(struct ipr_dump_location_entry) - 3122 sizeof(struct ipr_dump_entry_header); 3123 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; 3124 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; 3125 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); 3126 driver_dump->hdr.num_entries++; 3127 } 3128 3129 /** 3130 * ipr_get_ioa_dump - Perform a dump of the driver and adapter. 3131 * @ioa_cfg: ioa config struct 3132 * @dump: dump struct 3133 * 3134 * Return value: 3135 * nothing 3136 **/ 3137 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) 3138 { 3139 unsigned long start_addr, sdt_word; 3140 unsigned long lock_flags = 0; 3141 struct ipr_driver_dump *driver_dump = &dump->driver_dump; 3142 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; 3143 u32 num_entries, max_num_entries, start_off, end_off; 3144 u32 max_dump_size, bytes_to_copy, bytes_copied, rc; 3145 struct ipr_sdt *sdt; 3146 int valid = 1; 3147 int i; 3148 3149 ENTER; 3150 3151 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3152 3153 if (ioa_cfg->sdt_state != READ_DUMP) { 3154 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3155 return; 3156 } 3157 3158 if (ioa_cfg->sis64) { 3159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3160 ssleep(IPR_DUMP_DELAY_SECONDS); 3161 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3162 } 3163 3164 start_addr = readl(ioa_cfg->ioa_mailbox); 3165 3166 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { 3167 dev_err(&ioa_cfg->pdev->dev, 3168 "Invalid dump table format: %lx\n", start_addr); 3169 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3170 return; 3171 } 3172 3173 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); 3174 3175 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; 3176 3177 /* Initialize the overall dump header */ 3178 driver_dump->hdr.len = sizeof(struct ipr_driver_dump); 3179 driver_dump->hdr.num_entries = 1; 3180 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); 3181 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; 3182 driver_dump->hdr.os = IPR_DUMP_OS_LINUX; 3183 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; 3184 3185 ipr_dump_version_data(ioa_cfg, driver_dump); 3186 ipr_dump_location_data(ioa_cfg, driver_dump); 3187 ipr_dump_ioa_type_data(ioa_cfg, driver_dump); 3188 ipr_dump_trace_data(ioa_cfg, driver_dump); 3189 3190 /* Update dump_header */ 3191 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); 3192 3193 /* IOA Dump entry */ 3194 ipr_init_dump_entry_hdr(&ioa_dump->hdr); 3195 ioa_dump->hdr.len = 0; 3196 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; 3197 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; 3198 3199 /* First entries in sdt are actually a list of dump addresses and 3200 lengths to gather the real dump data. sdt represents the pointer 3201 to the ioa generated dump table. Dump data will be extracted based 3202 on entries in this table */ 3203 sdt = &ioa_dump->sdt; 3204 3205 if (ioa_cfg->sis64) { 3206 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES; 3207 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; 3208 } else { 3209 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES; 3210 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; 3211 } 3212 3213 bytes_to_copy = offsetof(struct ipr_sdt, entry) + 3214 (max_num_entries * sizeof(struct ipr_sdt_entry)); 3215 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, 3216 bytes_to_copy / sizeof(__be32)); 3217 3218 /* Smart Dump table is ready to use and the first entry is valid */ 3219 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 3220 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 3221 dev_err(&ioa_cfg->pdev->dev, 3222 "Dump of IOA failed. Dump table not valid: %d, %X.\n", 3223 rc, be32_to_cpu(sdt->hdr.state)); 3224 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; 3225 ioa_cfg->sdt_state = DUMP_OBTAINED; 3226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3227 return; 3228 } 3229 3230 num_entries = be32_to_cpu(sdt->hdr.num_entries_used); 3231 3232 if (num_entries > max_num_entries) 3233 num_entries = max_num_entries; 3234 3235 /* Update dump length to the actual data to be copied */ 3236 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header); 3237 if (ioa_cfg->sis64) 3238 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry); 3239 else 3240 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry); 3241 3242 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3243 3244 for (i = 0; i < num_entries; i++) { 3245 if (ioa_dump->hdr.len > max_dump_size) { 3246 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 3247 break; 3248 } 3249 3250 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { 3251 sdt_word = be32_to_cpu(sdt->entry[i].start_token); 3252 if (ioa_cfg->sis64) 3253 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); 3254 else { 3255 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; 3256 end_off = be32_to_cpu(sdt->entry[i].end_token); 3257 3258 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) 3259 bytes_to_copy = end_off - start_off; 3260 else 3261 valid = 0; 3262 } 3263 if (valid) { 3264 if (bytes_to_copy > max_dump_size) { 3265 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; 3266 continue; 3267 } 3268 3269 /* Copy data from adapter to driver buffers */ 3270 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, 3271 bytes_to_copy); 3272 3273 ioa_dump->hdr.len += bytes_copied; 3274 3275 if (bytes_copied != bytes_to_copy) { 3276 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; 3277 break; 3278 } 3279 } 3280 } 3281 } 3282 3283 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); 3284 3285 /* Update dump_header */ 3286 driver_dump->hdr.len += ioa_dump->hdr.len; 3287 wmb(); 3288 ioa_cfg->sdt_state = DUMP_OBTAINED; 3289 LEAVE; 3290 } 3291 3292 #else 3293 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0) 3294 #endif 3295 3296 /** 3297 * ipr_release_dump - Free adapter dump memory 3298 * @kref: kref struct 3299 * 3300 * Return value: 3301 * nothing 3302 **/ 3303 static void ipr_release_dump(struct kref *kref) 3304 { 3305 struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref); 3306 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; 3307 unsigned long lock_flags = 0; 3308 int i; 3309 3310 ENTER; 3311 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3312 ioa_cfg->dump = NULL; 3313 ioa_cfg->sdt_state = INACTIVE; 3314 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3315 3316 for (i = 0; i < dump->ioa_dump.next_page_index; i++) 3317 free_page((unsigned long) dump->ioa_dump.ioa_data[i]); 3318 3319 vfree(dump->ioa_dump.ioa_data); 3320 kfree(dump); 3321 LEAVE; 3322 } 3323 3324 static void ipr_add_remove_thread(struct work_struct *work) 3325 { 3326 unsigned long lock_flags; 3327 struct ipr_resource_entry *res; 3328 struct scsi_device *sdev; 3329 struct ipr_ioa_cfg *ioa_cfg = 3330 container_of(work, struct ipr_ioa_cfg, scsi_add_work_q); 3331 u8 bus, target, lun; 3332 int did_work; 3333 3334 ENTER; 3335 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3336 3337 restart: 3338 do { 3339 did_work = 0; 3340 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { 3341 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3342 return; 3343 } 3344 3345 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3346 if (res->del_from_ml && res->sdev) { 3347 did_work = 1; 3348 sdev = res->sdev; 3349 if (!scsi_device_get(sdev)) { 3350 if (!res->add_to_ml) 3351 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 3352 else 3353 res->del_from_ml = 0; 3354 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3355 scsi_remove_device(sdev); 3356 scsi_device_put(sdev); 3357 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3358 } 3359 break; 3360 } 3361 } 3362 } while (did_work); 3363 3364 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 3365 if (res->add_to_ml) { 3366 bus = res->bus; 3367 target = res->target; 3368 lun = res->lun; 3369 res->add_to_ml = 0; 3370 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3371 scsi_add_device(ioa_cfg->host, bus, target, lun); 3372 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3373 goto restart; 3374 } 3375 } 3376 3377 ioa_cfg->scan_done = 1; 3378 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3379 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); 3380 LEAVE; 3381 } 3382 3383 /** 3384 * ipr_worker_thread - Worker thread 3385 * @work: ioa config struct 3386 * 3387 * Called at task level from a work thread. This function takes care 3388 * of adding and removing device from the mid-layer as configuration 3389 * changes are detected by the adapter. 3390 * 3391 * Return value: 3392 * nothing 3393 **/ 3394 static void ipr_worker_thread(struct work_struct *work) 3395 { 3396 unsigned long lock_flags; 3397 struct ipr_dump *dump; 3398 struct ipr_ioa_cfg *ioa_cfg = 3399 container_of(work, struct ipr_ioa_cfg, work_q); 3400 3401 ENTER; 3402 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3403 3404 if (ioa_cfg->sdt_state == READ_DUMP) { 3405 dump = ioa_cfg->dump; 3406 if (!dump) { 3407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3408 return; 3409 } 3410 kref_get(&dump->kref); 3411 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3412 ipr_get_ioa_dump(ioa_cfg, dump); 3413 kref_put(&dump->kref, ipr_release_dump); 3414 3415 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3416 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout) 3417 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3419 return; 3420 } 3421 3422 if (ioa_cfg->scsi_unblock) { 3423 ioa_cfg->scsi_unblock = 0; 3424 ioa_cfg->scsi_blocked = 0; 3425 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3426 scsi_unblock_requests(ioa_cfg->host); 3427 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3428 if (ioa_cfg->scsi_blocked) 3429 scsi_block_requests(ioa_cfg->host); 3430 } 3431 3432 if (!ioa_cfg->scan_enabled) { 3433 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3434 return; 3435 } 3436 3437 schedule_work(&ioa_cfg->scsi_add_work_q); 3438 3439 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3440 LEAVE; 3441 } 3442 3443 #ifdef CONFIG_SCSI_IPR_TRACE 3444 /** 3445 * ipr_read_trace - Dump the adapter trace 3446 * @filp: open sysfs file 3447 * @kobj: kobject struct 3448 * @bin_attr: bin_attribute struct 3449 * @buf: buffer 3450 * @off: offset 3451 * @count: buffer size 3452 * 3453 * Return value: 3454 * number of bytes printed to buffer 3455 **/ 3456 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, 3457 struct bin_attribute *bin_attr, 3458 char *buf, loff_t off, size_t count) 3459 { 3460 struct device *dev = container_of(kobj, struct device, kobj); 3461 struct Scsi_Host *shost = class_to_shost(dev); 3462 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3463 unsigned long lock_flags = 0; 3464 ssize_t ret; 3465 3466 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3467 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, 3468 IPR_TRACE_SIZE); 3469 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3470 3471 return ret; 3472 } 3473 3474 static struct bin_attribute ipr_trace_attr = { 3475 .attr = { 3476 .name = "trace", 3477 .mode = S_IRUGO, 3478 }, 3479 .size = 0, 3480 .read = ipr_read_trace, 3481 }; 3482 #endif 3483 3484 /** 3485 * ipr_show_fw_version - Show the firmware version 3486 * @dev: class device struct 3487 * @buf: buffer 3488 * 3489 * Return value: 3490 * number of bytes printed to buffer 3491 **/ 3492 static ssize_t ipr_show_fw_version(struct device *dev, 3493 struct device_attribute *attr, char *buf) 3494 { 3495 struct Scsi_Host *shost = class_to_shost(dev); 3496 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3497 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 3498 unsigned long lock_flags = 0; 3499 int len; 3500 3501 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3502 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", 3503 ucode_vpd->major_release, ucode_vpd->card_type, 3504 ucode_vpd->minor_release[0], 3505 ucode_vpd->minor_release[1]); 3506 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3507 return len; 3508 } 3509 3510 static struct device_attribute ipr_fw_version_attr = { 3511 .attr = { 3512 .name = "fw_version", 3513 .mode = S_IRUGO, 3514 }, 3515 .show = ipr_show_fw_version, 3516 }; 3517 3518 /** 3519 * ipr_show_log_level - Show the adapter's error logging level 3520 * @dev: class device struct 3521 * @buf: buffer 3522 * 3523 * Return value: 3524 * number of bytes printed to buffer 3525 **/ 3526 static ssize_t ipr_show_log_level(struct device *dev, 3527 struct device_attribute *attr, char *buf) 3528 { 3529 struct Scsi_Host *shost = class_to_shost(dev); 3530 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3531 unsigned long lock_flags = 0; 3532 int len; 3533 3534 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3535 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); 3536 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3537 return len; 3538 } 3539 3540 /** 3541 * ipr_store_log_level - Change the adapter's error logging level 3542 * @dev: class device struct 3543 * @buf: buffer 3544 * 3545 * Return value: 3546 * number of bytes printed to buffer 3547 **/ 3548 static ssize_t ipr_store_log_level(struct device *dev, 3549 struct device_attribute *attr, 3550 const char *buf, size_t count) 3551 { 3552 struct Scsi_Host *shost = class_to_shost(dev); 3553 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3554 unsigned long lock_flags = 0; 3555 3556 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3557 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); 3558 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3559 return strlen(buf); 3560 } 3561 3562 static struct device_attribute ipr_log_level_attr = { 3563 .attr = { 3564 .name = "log_level", 3565 .mode = S_IRUGO | S_IWUSR, 3566 }, 3567 .show = ipr_show_log_level, 3568 .store = ipr_store_log_level 3569 }; 3570 3571 /** 3572 * ipr_store_diagnostics - IOA Diagnostics interface 3573 * @dev: device struct 3574 * @buf: buffer 3575 * @count: buffer size 3576 * 3577 * This function will reset the adapter and wait a reasonable 3578 * amount of time for any errors that the adapter might log. 3579 * 3580 * Return value: 3581 * count on success / other on failure 3582 **/ 3583 static ssize_t ipr_store_diagnostics(struct device *dev, 3584 struct device_attribute *attr, 3585 const char *buf, size_t count) 3586 { 3587 struct Scsi_Host *shost = class_to_shost(dev); 3588 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3589 unsigned long lock_flags = 0; 3590 int rc = count; 3591 3592 if (!capable(CAP_SYS_ADMIN)) 3593 return -EACCES; 3594 3595 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3596 while (ioa_cfg->in_reset_reload) { 3597 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3598 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3599 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3600 } 3601 3602 ioa_cfg->errors_logged = 0; 3603 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3604 3605 if (ioa_cfg->in_reset_reload) { 3606 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3607 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3608 3609 /* Wait for a second for any errors to be logged */ 3610 msleep(1000); 3611 } else { 3612 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3613 return -EIO; 3614 } 3615 3616 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3617 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) 3618 rc = -EIO; 3619 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3620 3621 return rc; 3622 } 3623 3624 static struct device_attribute ipr_diagnostics_attr = { 3625 .attr = { 3626 .name = "run_diagnostics", 3627 .mode = S_IWUSR, 3628 }, 3629 .store = ipr_store_diagnostics 3630 }; 3631 3632 /** 3633 * ipr_show_adapter_state - Show the adapter's state 3634 * @class_dev: device struct 3635 * @buf: buffer 3636 * 3637 * Return value: 3638 * number of bytes printed to buffer 3639 **/ 3640 static ssize_t ipr_show_adapter_state(struct device *dev, 3641 struct device_attribute *attr, char *buf) 3642 { 3643 struct Scsi_Host *shost = class_to_shost(dev); 3644 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3645 unsigned long lock_flags = 0; 3646 int len; 3647 3648 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3649 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) 3650 len = snprintf(buf, PAGE_SIZE, "offline\n"); 3651 else 3652 len = snprintf(buf, PAGE_SIZE, "online\n"); 3653 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3654 return len; 3655 } 3656 3657 /** 3658 * ipr_store_adapter_state - Change adapter state 3659 * @dev: device struct 3660 * @buf: buffer 3661 * @count: buffer size 3662 * 3663 * This function will change the adapter's state. 3664 * 3665 * Return value: 3666 * count on success / other on failure 3667 **/ 3668 static ssize_t ipr_store_adapter_state(struct device *dev, 3669 struct device_attribute *attr, 3670 const char *buf, size_t count) 3671 { 3672 struct Scsi_Host *shost = class_to_shost(dev); 3673 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3674 unsigned long lock_flags; 3675 int result = count, i; 3676 3677 if (!capable(CAP_SYS_ADMIN)) 3678 return -EACCES; 3679 3680 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3681 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && 3682 !strncmp(buf, "online", 6)) { 3683 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 3684 spin_lock(&ioa_cfg->hrrq[i]._lock); 3685 ioa_cfg->hrrq[i].ioa_is_dead = 0; 3686 spin_unlock(&ioa_cfg->hrrq[i]._lock); 3687 } 3688 wmb(); 3689 ioa_cfg->reset_retries = 0; 3690 ioa_cfg->in_ioa_bringdown = 0; 3691 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 3692 } 3693 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3694 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3695 3696 return result; 3697 } 3698 3699 static struct device_attribute ipr_ioa_state_attr = { 3700 .attr = { 3701 .name = "online_state", 3702 .mode = S_IRUGO | S_IWUSR, 3703 }, 3704 .show = ipr_show_adapter_state, 3705 .store = ipr_store_adapter_state 3706 }; 3707 3708 /** 3709 * ipr_store_reset_adapter - Reset the adapter 3710 * @dev: device struct 3711 * @buf: buffer 3712 * @count: buffer size 3713 * 3714 * This function will reset the adapter. 3715 * 3716 * Return value: 3717 * count on success / other on failure 3718 **/ 3719 static ssize_t ipr_store_reset_adapter(struct device *dev, 3720 struct device_attribute *attr, 3721 const char *buf, size_t count) 3722 { 3723 struct Scsi_Host *shost = class_to_shost(dev); 3724 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3725 unsigned long lock_flags; 3726 int result = count; 3727 3728 if (!capable(CAP_SYS_ADMIN)) 3729 return -EACCES; 3730 3731 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 3732 if (!ioa_cfg->in_reset_reload) 3733 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 3734 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 3735 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 3736 3737 return result; 3738 } 3739 3740 static struct device_attribute ipr_ioa_reset_attr = { 3741 .attr = { 3742 .name = "reset_host", 3743 .mode = S_IWUSR, 3744 }, 3745 .store = ipr_store_reset_adapter 3746 }; 3747 3748 static int ipr_iopoll(struct irq_poll *iop, int budget); 3749 /** 3750 * ipr_show_iopoll_weight - Show ipr polling mode 3751 * @dev: class device struct 3752 * @buf: buffer 3753 * 3754 * Return value: 3755 * number of bytes printed to buffer 3756 **/ 3757 static ssize_t ipr_show_iopoll_weight(struct device *dev, 3758 struct device_attribute *attr, char *buf) 3759 { 3760 struct Scsi_Host *shost = class_to_shost(dev); 3761 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3762 unsigned long lock_flags = 0; 3763 int len; 3764 3765 spin_lock_irqsave(shost->host_lock, lock_flags); 3766 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->iopoll_weight); 3767 spin_unlock_irqrestore(shost->host_lock, lock_flags); 3768 3769 return len; 3770 } 3771 3772 /** 3773 * ipr_store_iopoll_weight - Change the adapter's polling mode 3774 * @dev: class device struct 3775 * @buf: buffer 3776 * 3777 * Return value: 3778 * number of bytes printed to buffer 3779 **/ 3780 static ssize_t ipr_store_iopoll_weight(struct device *dev, 3781 struct device_attribute *attr, 3782 const char *buf, size_t count) 3783 { 3784 struct Scsi_Host *shost = class_to_shost(dev); 3785 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 3786 unsigned long user_iopoll_weight; 3787 unsigned long lock_flags = 0; 3788 int i; 3789 3790 if (!ioa_cfg->sis64) { 3791 dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n"); 3792 return -EINVAL; 3793 } 3794 if (kstrtoul(buf, 10, &user_iopoll_weight)) 3795 return -EINVAL; 3796 3797 if (user_iopoll_weight > 256) { 3798 dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n"); 3799 return -EINVAL; 3800 } 3801 3802 if (user_iopoll_weight == ioa_cfg->iopoll_weight) { 3803 dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n"); 3804 return strlen(buf); 3805 } 3806 3807 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { 3808 for (i = 1; i < ioa_cfg->hrrq_num; i++) 3809 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); 3810 } 3811 3812 spin_lock_irqsave(shost->host_lock, lock_flags); 3813 ioa_cfg->iopoll_weight = user_iopoll_weight; 3814 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { 3815 for (i = 1; i < ioa_cfg->hrrq_num; i++) { 3816 irq_poll_init(&ioa_cfg->hrrq[i].iopoll, 3817 ioa_cfg->iopoll_weight, ipr_iopoll); 3818 } 3819 } 3820 spin_unlock_irqrestore(shost->host_lock, lock_flags); 3821 3822 return strlen(buf); 3823 } 3824 3825 static struct device_attribute ipr_iopoll_weight_attr = { 3826 .attr = { 3827 .name = "iopoll_weight", 3828 .mode = S_IRUGO | S_IWUSR, 3829 }, 3830 .show = ipr_show_iopoll_weight, 3831 .store = ipr_store_iopoll_weight 3832 }; 3833 3834 /** 3835 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer 3836 * @buf_len: buffer length 3837 * 3838 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather 3839 * list to use for microcode download 3840 * 3841 * Return value: 3842 * pointer to sglist / NULL on failure 3843 **/ 3844 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) 3845 { 3846 int sg_size, order; 3847 struct ipr_sglist *sglist; 3848 3849 /* Get the minimum size per scatter/gather element */ 3850 sg_size = buf_len / (IPR_MAX_SGLIST - 1); 3851 3852 /* Get the actual size per element */ 3853 order = get_order(sg_size); 3854 3855 /* Allocate a scatter/gather list for the DMA */ 3856 sglist = kzalloc(sizeof(struct ipr_sglist), GFP_KERNEL); 3857 if (sglist == NULL) { 3858 ipr_trace; 3859 return NULL; 3860 } 3861 sglist->order = order; 3862 sglist->scatterlist = sgl_alloc_order(buf_len, order, false, GFP_KERNEL, 3863 &sglist->num_sg); 3864 if (!sglist->scatterlist) { 3865 kfree(sglist); 3866 return NULL; 3867 } 3868 3869 return sglist; 3870 } 3871 3872 /** 3873 * ipr_free_ucode_buffer - Frees a microcode download buffer 3874 * @p_dnld: scatter/gather list pointer 3875 * 3876 * Free a DMA'able ucode download buffer previously allocated with 3877 * ipr_alloc_ucode_buffer 3878 * 3879 * Return value: 3880 * nothing 3881 **/ 3882 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) 3883 { 3884 sgl_free_order(sglist->scatterlist, sglist->order); 3885 kfree(sglist); 3886 } 3887 3888 /** 3889 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer 3890 * @sglist: scatter/gather list pointer 3891 * @buffer: buffer pointer 3892 * @len: buffer length 3893 * 3894 * Copy a microcode image from a user buffer into a buffer allocated by 3895 * ipr_alloc_ucode_buffer 3896 * 3897 * Return value: 3898 * 0 on success / other on failure 3899 **/ 3900 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, 3901 u8 *buffer, u32 len) 3902 { 3903 int bsize_elem, i, result = 0; 3904 struct scatterlist *sg; 3905 void *kaddr; 3906 3907 /* Determine the actual number of bytes per element */ 3908 bsize_elem = PAGE_SIZE * (1 << sglist->order); 3909 3910 sg = sglist->scatterlist; 3911 3912 for (i = 0; i < (len / bsize_elem); i++, sg = sg_next(sg), 3913 buffer += bsize_elem) { 3914 struct page *page = sg_page(sg); 3915 3916 kaddr = kmap(page); 3917 memcpy(kaddr, buffer, bsize_elem); 3918 kunmap(page); 3919 3920 sg->length = bsize_elem; 3921 3922 if (result != 0) { 3923 ipr_trace; 3924 return result; 3925 } 3926 } 3927 3928 if (len % bsize_elem) { 3929 struct page *page = sg_page(sg); 3930 3931 kaddr = kmap(page); 3932 memcpy(kaddr, buffer, len % bsize_elem); 3933 kunmap(page); 3934 3935 sg->length = len % bsize_elem; 3936 } 3937 3938 sglist->buffer_len = len; 3939 return result; 3940 } 3941 3942 /** 3943 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL 3944 * @ipr_cmd: ipr command struct 3945 * @sglist: scatter/gather list 3946 * 3947 * Builds a microcode download IOA data list (IOADL). 3948 * 3949 **/ 3950 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, 3951 struct ipr_sglist *sglist) 3952 { 3953 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3954 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 3955 struct scatterlist *scatterlist = sglist->scatterlist; 3956 struct scatterlist *sg; 3957 int i; 3958 3959 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3960 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3961 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3962 3963 ioarcb->ioadl_len = 3964 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 3965 for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) { 3966 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); 3967 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 3968 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 3969 } 3970 3971 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 3972 } 3973 3974 /** 3975 * ipr_build_ucode_ioadl - Build a microcode download IOADL 3976 * @ipr_cmd: ipr command struct 3977 * @sglist: scatter/gather list 3978 * 3979 * Builds a microcode download IOA data list (IOADL). 3980 * 3981 **/ 3982 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, 3983 struct ipr_sglist *sglist) 3984 { 3985 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 3986 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 3987 struct scatterlist *scatterlist = sglist->scatterlist; 3988 struct scatterlist *sg; 3989 int i; 3990 3991 ipr_cmd->dma_use_sg = sglist->num_dma_sg; 3992 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 3993 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); 3994 3995 ioarcb->ioadl_len = 3996 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 3997 3998 for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) { 3999 ioadl[i].flags_and_data_len = 4000 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(sg)); 4001 ioadl[i].address = 4002 cpu_to_be32(sg_dma_address(sg)); 4003 } 4004 4005 ioadl[i-1].flags_and_data_len |= 4006 cpu_to_be32(IPR_IOADL_FLAGS_LAST); 4007 } 4008 4009 /** 4010 * ipr_update_ioa_ucode - Update IOA's microcode 4011 * @ioa_cfg: ioa config struct 4012 * @sglist: scatter/gather list 4013 * 4014 * Initiate an adapter reset to update the IOA's microcode 4015 * 4016 * Return value: 4017 * 0 on success / -EIO on failure 4018 **/ 4019 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, 4020 struct ipr_sglist *sglist) 4021 { 4022 unsigned long lock_flags; 4023 4024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4025 while (ioa_cfg->in_reset_reload) { 4026 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4027 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4028 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4029 } 4030 4031 if (ioa_cfg->ucode_sglist) { 4032 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4033 dev_err(&ioa_cfg->pdev->dev, 4034 "Microcode download already in progress\n"); 4035 return -EIO; 4036 } 4037 4038 sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev, 4039 sglist->scatterlist, sglist->num_sg, 4040 DMA_TO_DEVICE); 4041 4042 if (!sglist->num_dma_sg) { 4043 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4044 dev_err(&ioa_cfg->pdev->dev, 4045 "Failed to map microcode download buffer!\n"); 4046 return -EIO; 4047 } 4048 4049 ioa_cfg->ucode_sglist = sglist; 4050 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); 4051 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4052 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 4053 4054 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4055 ioa_cfg->ucode_sglist = NULL; 4056 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4057 return 0; 4058 } 4059 4060 /** 4061 * ipr_store_update_fw - Update the firmware on the adapter 4062 * @class_dev: device struct 4063 * @buf: buffer 4064 * @count: buffer size 4065 * 4066 * This function will update the firmware on the adapter. 4067 * 4068 * Return value: 4069 * count on success / other on failure 4070 **/ 4071 static ssize_t ipr_store_update_fw(struct device *dev, 4072 struct device_attribute *attr, 4073 const char *buf, size_t count) 4074 { 4075 struct Scsi_Host *shost = class_to_shost(dev); 4076 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 4077 struct ipr_ucode_image_header *image_hdr; 4078 const struct firmware *fw_entry; 4079 struct ipr_sglist *sglist; 4080 char fname[100]; 4081 char *src; 4082 char *endline; 4083 int result, dnld_size; 4084 4085 if (!capable(CAP_SYS_ADMIN)) 4086 return -EACCES; 4087 4088 snprintf(fname, sizeof(fname), "%s", buf); 4089 4090 endline = strchr(fname, '\n'); 4091 if (endline) 4092 *endline = '\0'; 4093 4094 if (request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { 4095 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); 4096 return -EIO; 4097 } 4098 4099 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; 4100 4101 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); 4102 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); 4103 sglist = ipr_alloc_ucode_buffer(dnld_size); 4104 4105 if (!sglist) { 4106 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); 4107 release_firmware(fw_entry); 4108 return -ENOMEM; 4109 } 4110 4111 result = ipr_copy_ucode_buffer(sglist, src, dnld_size); 4112 4113 if (result) { 4114 dev_err(&ioa_cfg->pdev->dev, 4115 "Microcode buffer copy to DMA buffer failed\n"); 4116 goto out; 4117 } 4118 4119 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n"); 4120 4121 result = ipr_update_ioa_ucode(ioa_cfg, sglist); 4122 4123 if (!result) 4124 result = count; 4125 out: 4126 ipr_free_ucode_buffer(sglist); 4127 release_firmware(fw_entry); 4128 return result; 4129 } 4130 4131 static struct device_attribute ipr_update_fw_attr = { 4132 .attr = { 4133 .name = "update_fw", 4134 .mode = S_IWUSR, 4135 }, 4136 .store = ipr_store_update_fw 4137 }; 4138 4139 /** 4140 * ipr_show_fw_type - Show the adapter's firmware type. 4141 * @dev: class device struct 4142 * @buf: buffer 4143 * 4144 * Return value: 4145 * number of bytes printed to buffer 4146 **/ 4147 static ssize_t ipr_show_fw_type(struct device *dev, 4148 struct device_attribute *attr, char *buf) 4149 { 4150 struct Scsi_Host *shost = class_to_shost(dev); 4151 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 4152 unsigned long lock_flags = 0; 4153 int len; 4154 4155 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4156 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64); 4157 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4158 return len; 4159 } 4160 4161 static struct device_attribute ipr_ioa_fw_type_attr = { 4162 .attr = { 4163 .name = "fw_type", 4164 .mode = S_IRUGO, 4165 }, 4166 .show = ipr_show_fw_type 4167 }; 4168 4169 static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj, 4170 struct bin_attribute *bin_attr, char *buf, 4171 loff_t off, size_t count) 4172 { 4173 struct device *cdev = container_of(kobj, struct device, kobj); 4174 struct Scsi_Host *shost = class_to_shost(cdev); 4175 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 4176 struct ipr_hostrcb *hostrcb; 4177 unsigned long lock_flags = 0; 4178 int ret; 4179 4180 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4181 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q, 4182 struct ipr_hostrcb, queue); 4183 if (!hostrcb) { 4184 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4185 return 0; 4186 } 4187 ret = memory_read_from_buffer(buf, count, &off, &hostrcb->hcam, 4188 sizeof(hostrcb->hcam)); 4189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4190 return ret; 4191 } 4192 4193 static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj, 4194 struct bin_attribute *bin_attr, char *buf, 4195 loff_t off, size_t count) 4196 { 4197 struct device *cdev = container_of(kobj, struct device, kobj); 4198 struct Scsi_Host *shost = class_to_shost(cdev); 4199 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 4200 struct ipr_hostrcb *hostrcb; 4201 unsigned long lock_flags = 0; 4202 4203 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4204 hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q, 4205 struct ipr_hostrcb, queue); 4206 if (!hostrcb) { 4207 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4208 return count; 4209 } 4210 4211 /* Reclaim hostrcb before exit */ 4212 list_move_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 4213 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4214 return count; 4215 } 4216 4217 static struct bin_attribute ipr_ioa_async_err_log = { 4218 .attr = { 4219 .name = "async_err_log", 4220 .mode = S_IRUGO | S_IWUSR, 4221 }, 4222 .size = 0, 4223 .read = ipr_read_async_err_log, 4224 .write = ipr_next_async_err_log 4225 }; 4226 4227 static struct device_attribute *ipr_ioa_attrs[] = { 4228 &ipr_fw_version_attr, 4229 &ipr_log_level_attr, 4230 &ipr_diagnostics_attr, 4231 &ipr_ioa_state_attr, 4232 &ipr_ioa_reset_attr, 4233 &ipr_update_fw_attr, 4234 &ipr_ioa_fw_type_attr, 4235 &ipr_iopoll_weight_attr, 4236 NULL, 4237 }; 4238 4239 #ifdef CONFIG_SCSI_IPR_DUMP 4240 /** 4241 * ipr_read_dump - Dump the adapter 4242 * @filp: open sysfs file 4243 * @kobj: kobject struct 4244 * @bin_attr: bin_attribute struct 4245 * @buf: buffer 4246 * @off: offset 4247 * @count: buffer size 4248 * 4249 * Return value: 4250 * number of bytes printed to buffer 4251 **/ 4252 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, 4253 struct bin_attribute *bin_attr, 4254 char *buf, loff_t off, size_t count) 4255 { 4256 struct device *cdev = container_of(kobj, struct device, kobj); 4257 struct Scsi_Host *shost = class_to_shost(cdev); 4258 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 4259 struct ipr_dump *dump; 4260 unsigned long lock_flags = 0; 4261 char *src; 4262 int len, sdt_end; 4263 size_t rc = count; 4264 4265 if (!capable(CAP_SYS_ADMIN)) 4266 return -EACCES; 4267 4268 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4269 dump = ioa_cfg->dump; 4270 4271 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { 4272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4273 return 0; 4274 } 4275 kref_get(&dump->kref); 4276 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4277 4278 if (off > dump->driver_dump.hdr.len) { 4279 kref_put(&dump->kref, ipr_release_dump); 4280 return 0; 4281 } 4282 4283 if (off + count > dump->driver_dump.hdr.len) { 4284 count = dump->driver_dump.hdr.len - off; 4285 rc = count; 4286 } 4287 4288 if (count && off < sizeof(dump->driver_dump)) { 4289 if (off + count > sizeof(dump->driver_dump)) 4290 len = sizeof(dump->driver_dump) - off; 4291 else 4292 len = count; 4293 src = (u8 *)&dump->driver_dump + off; 4294 memcpy(buf, src, len); 4295 buf += len; 4296 off += len; 4297 count -= len; 4298 } 4299 4300 off -= sizeof(dump->driver_dump); 4301 4302 if (ioa_cfg->sis64) 4303 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + 4304 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) * 4305 sizeof(struct ipr_sdt_entry)); 4306 else 4307 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + 4308 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry)); 4309 4310 if (count && off < sdt_end) { 4311 if (off + count > sdt_end) 4312 len = sdt_end - off; 4313 else 4314 len = count; 4315 src = (u8 *)&dump->ioa_dump + off; 4316 memcpy(buf, src, len); 4317 buf += len; 4318 off += len; 4319 count -= len; 4320 } 4321 4322 off -= sdt_end; 4323 4324 while (count) { 4325 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) 4326 len = PAGE_ALIGN(off) - off; 4327 else 4328 len = count; 4329 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; 4330 src += off & ~PAGE_MASK; 4331 memcpy(buf, src, len); 4332 buf += len; 4333 off += len; 4334 count -= len; 4335 } 4336 4337 kref_put(&dump->kref, ipr_release_dump); 4338 return rc; 4339 } 4340 4341 /** 4342 * ipr_alloc_dump - Prepare for adapter dump 4343 * @ioa_cfg: ioa config struct 4344 * 4345 * Return value: 4346 * 0 on success / other on failure 4347 **/ 4348 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) 4349 { 4350 struct ipr_dump *dump; 4351 __be32 **ioa_data; 4352 unsigned long lock_flags = 0; 4353 4354 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); 4355 4356 if (!dump) { 4357 ipr_err("Dump memory allocation failed\n"); 4358 return -ENOMEM; 4359 } 4360 4361 if (ioa_cfg->sis64) 4362 ioa_data = vmalloc(array_size(IPR_FMT3_MAX_NUM_DUMP_PAGES, 4363 sizeof(__be32 *))); 4364 else 4365 ioa_data = vmalloc(array_size(IPR_FMT2_MAX_NUM_DUMP_PAGES, 4366 sizeof(__be32 *))); 4367 4368 if (!ioa_data) { 4369 ipr_err("Dump memory allocation failed\n"); 4370 kfree(dump); 4371 return -ENOMEM; 4372 } 4373 4374 dump->ioa_dump.ioa_data = ioa_data; 4375 4376 kref_init(&dump->kref); 4377 dump->ioa_cfg = ioa_cfg; 4378 4379 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4380 4381 if (INACTIVE != ioa_cfg->sdt_state) { 4382 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4383 vfree(dump->ioa_dump.ioa_data); 4384 kfree(dump); 4385 return 0; 4386 } 4387 4388 ioa_cfg->dump = dump; 4389 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 4390 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) { 4391 ioa_cfg->dump_taken = 1; 4392 schedule_work(&ioa_cfg->work_q); 4393 } 4394 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4395 4396 return 0; 4397 } 4398 4399 /** 4400 * ipr_free_dump - Free adapter dump memory 4401 * @ioa_cfg: ioa config struct 4402 * 4403 * Return value: 4404 * 0 on success / other on failure 4405 **/ 4406 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) 4407 { 4408 struct ipr_dump *dump; 4409 unsigned long lock_flags = 0; 4410 4411 ENTER; 4412 4413 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4414 dump = ioa_cfg->dump; 4415 if (!dump) { 4416 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4417 return 0; 4418 } 4419 4420 ioa_cfg->dump = NULL; 4421 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4422 4423 kref_put(&dump->kref, ipr_release_dump); 4424 4425 LEAVE; 4426 return 0; 4427 } 4428 4429 /** 4430 * ipr_write_dump - Setup dump state of adapter 4431 * @filp: open sysfs file 4432 * @kobj: kobject struct 4433 * @bin_attr: bin_attribute struct 4434 * @buf: buffer 4435 * @off: offset 4436 * @count: buffer size 4437 * 4438 * Return value: 4439 * number of bytes printed to buffer 4440 **/ 4441 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, 4442 struct bin_attribute *bin_attr, 4443 char *buf, loff_t off, size_t count) 4444 { 4445 struct device *cdev = container_of(kobj, struct device, kobj); 4446 struct Scsi_Host *shost = class_to_shost(cdev); 4447 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 4448 int rc; 4449 4450 if (!capable(CAP_SYS_ADMIN)) 4451 return -EACCES; 4452 4453 if (buf[0] == '1') 4454 rc = ipr_alloc_dump(ioa_cfg); 4455 else if (buf[0] == '0') 4456 rc = ipr_free_dump(ioa_cfg); 4457 else 4458 return -EINVAL; 4459 4460 if (rc) 4461 return rc; 4462 else 4463 return count; 4464 } 4465 4466 static struct bin_attribute ipr_dump_attr = { 4467 .attr = { 4468 .name = "dump", 4469 .mode = S_IRUSR | S_IWUSR, 4470 }, 4471 .size = 0, 4472 .read = ipr_read_dump, 4473 .write = ipr_write_dump 4474 }; 4475 #else 4476 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; 4477 #endif 4478 4479 /** 4480 * ipr_change_queue_depth - Change the device's queue depth 4481 * @sdev: scsi device struct 4482 * @qdepth: depth to set 4483 * @reason: calling context 4484 * 4485 * Return value: 4486 * actual depth set 4487 **/ 4488 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) 4489 { 4490 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4491 struct ipr_resource_entry *res; 4492 unsigned long lock_flags = 0; 4493 4494 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4495 res = (struct ipr_resource_entry *)sdev->hostdata; 4496 4497 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) 4498 qdepth = IPR_MAX_CMD_PER_ATA_LUN; 4499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4500 4501 scsi_change_queue_depth(sdev, qdepth); 4502 return sdev->queue_depth; 4503 } 4504 4505 /** 4506 * ipr_show_adapter_handle - Show the adapter's resource handle for this device 4507 * @dev: device struct 4508 * @attr: device attribute structure 4509 * @buf: buffer 4510 * 4511 * Return value: 4512 * number of bytes printed to buffer 4513 **/ 4514 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) 4515 { 4516 struct scsi_device *sdev = to_scsi_device(dev); 4517 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4518 struct ipr_resource_entry *res; 4519 unsigned long lock_flags = 0; 4520 ssize_t len = -ENXIO; 4521 4522 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4523 res = (struct ipr_resource_entry *)sdev->hostdata; 4524 if (res) 4525 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); 4526 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4527 return len; 4528 } 4529 4530 static struct device_attribute ipr_adapter_handle_attr = { 4531 .attr = { 4532 .name = "adapter_handle", 4533 .mode = S_IRUSR, 4534 }, 4535 .show = ipr_show_adapter_handle 4536 }; 4537 4538 /** 4539 * ipr_show_resource_path - Show the resource path or the resource address for 4540 * this device. 4541 * @dev: device struct 4542 * @attr: device attribute structure 4543 * @buf: buffer 4544 * 4545 * Return value: 4546 * number of bytes printed to buffer 4547 **/ 4548 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) 4549 { 4550 struct scsi_device *sdev = to_scsi_device(dev); 4551 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4552 struct ipr_resource_entry *res; 4553 unsigned long lock_flags = 0; 4554 ssize_t len = -ENXIO; 4555 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4556 4557 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4558 res = (struct ipr_resource_entry *)sdev->hostdata; 4559 if (res && ioa_cfg->sis64) 4560 len = snprintf(buf, PAGE_SIZE, "%s\n", 4561 __ipr_format_res_path(res->res_path, buffer, 4562 sizeof(buffer))); 4563 else if (res) 4564 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no, 4565 res->bus, res->target, res->lun); 4566 4567 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4568 return len; 4569 } 4570 4571 static struct device_attribute ipr_resource_path_attr = { 4572 .attr = { 4573 .name = "resource_path", 4574 .mode = S_IRUGO, 4575 }, 4576 .show = ipr_show_resource_path 4577 }; 4578 4579 /** 4580 * ipr_show_device_id - Show the device_id for this device. 4581 * @dev: device struct 4582 * @attr: device attribute structure 4583 * @buf: buffer 4584 * 4585 * Return value: 4586 * number of bytes printed to buffer 4587 **/ 4588 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) 4589 { 4590 struct scsi_device *sdev = to_scsi_device(dev); 4591 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4592 struct ipr_resource_entry *res; 4593 unsigned long lock_flags = 0; 4594 ssize_t len = -ENXIO; 4595 4596 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4597 res = (struct ipr_resource_entry *)sdev->hostdata; 4598 if (res && ioa_cfg->sis64) 4599 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", be64_to_cpu(res->dev_id)); 4600 else if (res) 4601 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); 4602 4603 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4604 return len; 4605 } 4606 4607 static struct device_attribute ipr_device_id_attr = { 4608 .attr = { 4609 .name = "device_id", 4610 .mode = S_IRUGO, 4611 }, 4612 .show = ipr_show_device_id 4613 }; 4614 4615 /** 4616 * ipr_show_resource_type - Show the resource type for this device. 4617 * @dev: device struct 4618 * @attr: device attribute structure 4619 * @buf: buffer 4620 * 4621 * Return value: 4622 * number of bytes printed to buffer 4623 **/ 4624 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) 4625 { 4626 struct scsi_device *sdev = to_scsi_device(dev); 4627 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4628 struct ipr_resource_entry *res; 4629 unsigned long lock_flags = 0; 4630 ssize_t len = -ENXIO; 4631 4632 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4633 res = (struct ipr_resource_entry *)sdev->hostdata; 4634 4635 if (res) 4636 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type); 4637 4638 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4639 return len; 4640 } 4641 4642 static struct device_attribute ipr_resource_type_attr = { 4643 .attr = { 4644 .name = "resource_type", 4645 .mode = S_IRUGO, 4646 }, 4647 .show = ipr_show_resource_type 4648 }; 4649 4650 /** 4651 * ipr_show_raw_mode - Show the adapter's raw mode 4652 * @dev: class device struct 4653 * @buf: buffer 4654 * 4655 * Return value: 4656 * number of bytes printed to buffer 4657 **/ 4658 static ssize_t ipr_show_raw_mode(struct device *dev, 4659 struct device_attribute *attr, char *buf) 4660 { 4661 struct scsi_device *sdev = to_scsi_device(dev); 4662 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4663 struct ipr_resource_entry *res; 4664 unsigned long lock_flags = 0; 4665 ssize_t len; 4666 4667 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4668 res = (struct ipr_resource_entry *)sdev->hostdata; 4669 if (res) 4670 len = snprintf(buf, PAGE_SIZE, "%d\n", res->raw_mode); 4671 else 4672 len = -ENXIO; 4673 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4674 return len; 4675 } 4676 4677 /** 4678 * ipr_store_raw_mode - Change the adapter's raw mode 4679 * @dev: class device struct 4680 * @buf: buffer 4681 * 4682 * Return value: 4683 * number of bytes printed to buffer 4684 **/ 4685 static ssize_t ipr_store_raw_mode(struct device *dev, 4686 struct device_attribute *attr, 4687 const char *buf, size_t count) 4688 { 4689 struct scsi_device *sdev = to_scsi_device(dev); 4690 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; 4691 struct ipr_resource_entry *res; 4692 unsigned long lock_flags = 0; 4693 ssize_t len; 4694 4695 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4696 res = (struct ipr_resource_entry *)sdev->hostdata; 4697 if (res) { 4698 if (ipr_is_af_dasd_device(res)) { 4699 res->raw_mode = simple_strtoul(buf, NULL, 10); 4700 len = strlen(buf); 4701 if (res->sdev) 4702 sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n", 4703 res->raw_mode ? "enabled" : "disabled"); 4704 } else 4705 len = -EINVAL; 4706 } else 4707 len = -ENXIO; 4708 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4709 return len; 4710 } 4711 4712 static struct device_attribute ipr_raw_mode_attr = { 4713 .attr = { 4714 .name = "raw_mode", 4715 .mode = S_IRUGO | S_IWUSR, 4716 }, 4717 .show = ipr_show_raw_mode, 4718 .store = ipr_store_raw_mode 4719 }; 4720 4721 static struct device_attribute *ipr_dev_attrs[] = { 4722 &ipr_adapter_handle_attr, 4723 &ipr_resource_path_attr, 4724 &ipr_device_id_attr, 4725 &ipr_resource_type_attr, 4726 &ipr_raw_mode_attr, 4727 NULL, 4728 }; 4729 4730 /** 4731 * ipr_biosparam - Return the HSC mapping 4732 * @sdev: scsi device struct 4733 * @block_device: block device pointer 4734 * @capacity: capacity of the device 4735 * @parm: Array containing returned HSC values. 4736 * 4737 * This function generates the HSC parms that fdisk uses. 4738 * We want to make sure we return something that places partitions 4739 * on 4k boundaries for best performance with the IOA. 4740 * 4741 * Return value: 4742 * 0 on success 4743 **/ 4744 static int ipr_biosparam(struct scsi_device *sdev, 4745 struct block_device *block_device, 4746 sector_t capacity, int *parm) 4747 { 4748 int heads, sectors; 4749 sector_t cylinders; 4750 4751 heads = 128; 4752 sectors = 32; 4753 4754 cylinders = capacity; 4755 sector_div(cylinders, (128 * 32)); 4756 4757 /* return result */ 4758 parm[0] = heads; 4759 parm[1] = sectors; 4760 parm[2] = cylinders; 4761 4762 return 0; 4763 } 4764 4765 /** 4766 * ipr_find_starget - Find target based on bus/target. 4767 * @starget: scsi target struct 4768 * 4769 * Return value: 4770 * resource entry pointer if found / NULL if not found 4771 **/ 4772 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) 4773 { 4774 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4775 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4776 struct ipr_resource_entry *res; 4777 4778 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4779 if ((res->bus == starget->channel) && 4780 (res->target == starget->id)) { 4781 return res; 4782 } 4783 } 4784 4785 return NULL; 4786 } 4787 4788 static struct ata_port_info sata_port_info; 4789 4790 /** 4791 * ipr_target_alloc - Prepare for commands to a SCSI target 4792 * @starget: scsi target struct 4793 * 4794 * If the device is a SATA device, this function allocates an 4795 * ATA port with libata, else it does nothing. 4796 * 4797 * Return value: 4798 * 0 on success / non-0 on failure 4799 **/ 4800 static int ipr_target_alloc(struct scsi_target *starget) 4801 { 4802 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4803 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4804 struct ipr_sata_port *sata_port; 4805 struct ata_port *ap; 4806 struct ipr_resource_entry *res; 4807 unsigned long lock_flags; 4808 4809 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4810 res = ipr_find_starget(starget); 4811 starget->hostdata = NULL; 4812 4813 if (res && ipr_is_gata(res)) { 4814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4815 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); 4816 if (!sata_port) 4817 return -ENOMEM; 4818 4819 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); 4820 if (ap) { 4821 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4822 sata_port->ioa_cfg = ioa_cfg; 4823 sata_port->ap = ap; 4824 sata_port->res = res; 4825 4826 res->sata_port = sata_port; 4827 ap->private_data = sata_port; 4828 starget->hostdata = sata_port; 4829 } else { 4830 kfree(sata_port); 4831 return -ENOMEM; 4832 } 4833 } 4834 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4835 4836 return 0; 4837 } 4838 4839 /** 4840 * ipr_target_destroy - Destroy a SCSI target 4841 * @starget: scsi target struct 4842 * 4843 * If the device was a SATA device, this function frees the libata 4844 * ATA port, else it does nothing. 4845 * 4846 **/ 4847 static void ipr_target_destroy(struct scsi_target *starget) 4848 { 4849 struct ipr_sata_port *sata_port = starget->hostdata; 4850 struct Scsi_Host *shost = dev_to_shost(&starget->dev); 4851 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 4852 4853 if (ioa_cfg->sis64) { 4854 if (!ipr_find_starget(starget)) { 4855 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) 4856 clear_bit(starget->id, ioa_cfg->array_ids); 4857 else if (starget->channel == IPR_VSET_VIRTUAL_BUS) 4858 clear_bit(starget->id, ioa_cfg->vset_ids); 4859 else if (starget->channel == 0) 4860 clear_bit(starget->id, ioa_cfg->target_ids); 4861 } 4862 } 4863 4864 if (sata_port) { 4865 starget->hostdata = NULL; 4866 ata_sas_port_destroy(sata_port->ap); 4867 kfree(sata_port); 4868 } 4869 } 4870 4871 /** 4872 * ipr_find_sdev - Find device based on bus/target/lun. 4873 * @sdev: scsi device struct 4874 * 4875 * Return value: 4876 * resource entry pointer if found / NULL if not found 4877 **/ 4878 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) 4879 { 4880 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4881 struct ipr_resource_entry *res; 4882 4883 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 4884 if ((res->bus == sdev->channel) && 4885 (res->target == sdev->id) && 4886 (res->lun == sdev->lun)) 4887 return res; 4888 } 4889 4890 return NULL; 4891 } 4892 4893 /** 4894 * ipr_slave_destroy - Unconfigure a SCSI device 4895 * @sdev: scsi device struct 4896 * 4897 * Return value: 4898 * nothing 4899 **/ 4900 static void ipr_slave_destroy(struct scsi_device *sdev) 4901 { 4902 struct ipr_resource_entry *res; 4903 struct ipr_ioa_cfg *ioa_cfg; 4904 unsigned long lock_flags = 0; 4905 4906 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4907 4908 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4909 res = (struct ipr_resource_entry *) sdev->hostdata; 4910 if (res) { 4911 if (res->sata_port) 4912 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; 4913 sdev->hostdata = NULL; 4914 res->sdev = NULL; 4915 res->sata_port = NULL; 4916 } 4917 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4918 } 4919 4920 /** 4921 * ipr_slave_configure - Configure a SCSI device 4922 * @sdev: scsi device struct 4923 * 4924 * This function configures the specified scsi device. 4925 * 4926 * Return value: 4927 * 0 on success 4928 **/ 4929 static int ipr_slave_configure(struct scsi_device *sdev) 4930 { 4931 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 4932 struct ipr_resource_entry *res; 4933 struct ata_port *ap = NULL; 4934 unsigned long lock_flags = 0; 4935 char buffer[IPR_MAX_RES_PATH_LENGTH]; 4936 4937 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 4938 res = sdev->hostdata; 4939 if (res) { 4940 if (ipr_is_af_dasd_device(res)) 4941 sdev->type = TYPE_RAID; 4942 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { 4943 sdev->scsi_level = 4; 4944 sdev->no_uld_attach = 1; 4945 } 4946 if (ipr_is_vset_device(res)) { 4947 sdev->scsi_level = SCSI_SPC_3; 4948 sdev->no_report_opcodes = 1; 4949 blk_queue_rq_timeout(sdev->request_queue, 4950 IPR_VSET_RW_TIMEOUT); 4951 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); 4952 } 4953 if (ipr_is_gata(res) && res->sata_port) 4954 ap = res->sata_port->ap; 4955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4956 4957 if (ap) { 4958 scsi_change_queue_depth(sdev, IPR_MAX_CMD_PER_ATA_LUN); 4959 ata_sas_slave_configure(sdev, ap); 4960 } 4961 4962 if (ioa_cfg->sis64) 4963 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", 4964 ipr_format_res_path(ioa_cfg, 4965 res->res_path, buffer, sizeof(buffer))); 4966 return 0; 4967 } 4968 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 4969 return 0; 4970 } 4971 4972 /** 4973 * ipr_ata_slave_alloc - Prepare for commands to a SATA device 4974 * @sdev: scsi device struct 4975 * 4976 * This function initializes an ATA port so that future commands 4977 * sent through queuecommand will work. 4978 * 4979 * Return value: 4980 * 0 on success 4981 **/ 4982 static int ipr_ata_slave_alloc(struct scsi_device *sdev) 4983 { 4984 struct ipr_sata_port *sata_port = NULL; 4985 int rc = -ENXIO; 4986 4987 ENTER; 4988 if (sdev->sdev_target) 4989 sata_port = sdev->sdev_target->hostdata; 4990 if (sata_port) { 4991 rc = ata_sas_port_init(sata_port->ap); 4992 if (rc == 0) 4993 rc = ata_sas_sync_probe(sata_port->ap); 4994 } 4995 4996 if (rc) 4997 ipr_slave_destroy(sdev); 4998 4999 LEAVE; 5000 return rc; 5001 } 5002 5003 /** 5004 * ipr_slave_alloc - Prepare for commands to a device. 5005 * @sdev: scsi device struct 5006 * 5007 * This function saves a pointer to the resource entry 5008 * in the scsi device struct if the device exists. We 5009 * can then use this pointer in ipr_queuecommand when 5010 * handling new commands. 5011 * 5012 * Return value: 5013 * 0 on success / -ENXIO if device does not exist 5014 **/ 5015 static int ipr_slave_alloc(struct scsi_device *sdev) 5016 { 5017 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; 5018 struct ipr_resource_entry *res; 5019 unsigned long lock_flags; 5020 int rc = -ENXIO; 5021 5022 sdev->hostdata = NULL; 5023 5024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5025 5026 res = ipr_find_sdev(sdev); 5027 if (res) { 5028 res->sdev = sdev; 5029 res->add_to_ml = 0; 5030 res->in_erp = 0; 5031 sdev->hostdata = res; 5032 if (!ipr_is_naca_model(res)) 5033 res->needs_sync_complete = 1; 5034 rc = 0; 5035 if (ipr_is_gata(res)) { 5036 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5037 return ipr_ata_slave_alloc(sdev); 5038 } 5039 } 5040 5041 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5042 5043 return rc; 5044 } 5045 5046 /** 5047 * ipr_match_lun - Match function for specified LUN 5048 * @ipr_cmd: ipr command struct 5049 * @device: device to match (sdev) 5050 * 5051 * Returns: 5052 * 1 if command matches sdev / 0 if command does not match sdev 5053 **/ 5054 static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device) 5055 { 5056 if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device) 5057 return 1; 5058 return 0; 5059 } 5060 5061 /** 5062 * ipr_cmnd_is_free - Check if a command is free or not 5063 * @ipr_cmd ipr command struct 5064 * 5065 * Returns: 5066 * true / false 5067 **/ 5068 static bool ipr_cmnd_is_free(struct ipr_cmnd *ipr_cmd) 5069 { 5070 struct ipr_cmnd *loop_cmd; 5071 5072 list_for_each_entry(loop_cmd, &ipr_cmd->hrrq->hrrq_free_q, queue) { 5073 if (loop_cmd == ipr_cmd) 5074 return true; 5075 } 5076 5077 return false; 5078 } 5079 5080 /** 5081 * ipr_match_res - Match function for specified resource entry 5082 * @ipr_cmd: ipr command struct 5083 * @resource: resource entry to match 5084 * 5085 * Returns: 5086 * 1 if command matches sdev / 0 if command does not match sdev 5087 **/ 5088 static int ipr_match_res(struct ipr_cmnd *ipr_cmd, void *resource) 5089 { 5090 struct ipr_resource_entry *res = resource; 5091 5092 if (res && ipr_cmd->ioarcb.res_handle == res->res_handle) 5093 return 1; 5094 return 0; 5095 } 5096 5097 /** 5098 * ipr_wait_for_ops - Wait for matching commands to complete 5099 * @ipr_cmd: ipr command struct 5100 * @device: device to match (sdev) 5101 * @match: match function to use 5102 * 5103 * Returns: 5104 * SUCCESS / FAILED 5105 **/ 5106 static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device, 5107 int (*match)(struct ipr_cmnd *, void *)) 5108 { 5109 struct ipr_cmnd *ipr_cmd; 5110 int wait, i; 5111 unsigned long flags; 5112 struct ipr_hrr_queue *hrrq; 5113 signed long timeout = IPR_ABORT_TASK_TIMEOUT; 5114 DECLARE_COMPLETION_ONSTACK(comp); 5115 5116 ENTER; 5117 do { 5118 wait = 0; 5119 5120 for_each_hrrq(hrrq, ioa_cfg) { 5121 spin_lock_irqsave(hrrq->lock, flags); 5122 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { 5123 ipr_cmd = ioa_cfg->ipr_cmnd_list[i]; 5124 if (!ipr_cmnd_is_free(ipr_cmd)) { 5125 if (match(ipr_cmd, device)) { 5126 ipr_cmd->eh_comp = ∁ 5127 wait++; 5128 } 5129 } 5130 } 5131 spin_unlock_irqrestore(hrrq->lock, flags); 5132 } 5133 5134 if (wait) { 5135 timeout = wait_for_completion_timeout(&comp, timeout); 5136 5137 if (!timeout) { 5138 wait = 0; 5139 5140 for_each_hrrq(hrrq, ioa_cfg) { 5141 spin_lock_irqsave(hrrq->lock, flags); 5142 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { 5143 ipr_cmd = ioa_cfg->ipr_cmnd_list[i]; 5144 if (!ipr_cmnd_is_free(ipr_cmd)) { 5145 if (match(ipr_cmd, device)) { 5146 ipr_cmd->eh_comp = NULL; 5147 wait++; 5148 } 5149 } 5150 } 5151 spin_unlock_irqrestore(hrrq->lock, flags); 5152 } 5153 5154 if (wait) 5155 dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n"); 5156 LEAVE; 5157 return wait ? FAILED : SUCCESS; 5158 } 5159 } 5160 } while (wait); 5161 5162 LEAVE; 5163 return SUCCESS; 5164 } 5165 5166 static int ipr_eh_host_reset(struct scsi_cmnd *cmd) 5167 { 5168 struct ipr_ioa_cfg *ioa_cfg; 5169 unsigned long lock_flags = 0; 5170 int rc = SUCCESS; 5171 5172 ENTER; 5173 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; 5174 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5175 5176 if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { 5177 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 5178 dev_err(&ioa_cfg->pdev->dev, 5179 "Adapter being reset as a result of error recovery.\n"); 5180 5181 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5182 ioa_cfg->sdt_state = GET_DUMP; 5183 } 5184 5185 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5186 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5187 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5188 5189 /* If we got hit with a host reset while we were already resetting 5190 the adapter for some reason, and the reset failed. */ 5191 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { 5192 ipr_trace; 5193 rc = FAILED; 5194 } 5195 5196 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5197 LEAVE; 5198 return rc; 5199 } 5200 5201 /** 5202 * ipr_device_reset - Reset the device 5203 * @ioa_cfg: ioa config struct 5204 * @res: resource entry struct 5205 * 5206 * This function issues a device reset to the affected device. 5207 * If the device is a SCSI device, a LUN reset will be sent 5208 * to the device first. If that does not work, a target reset 5209 * will be sent. If the device is a SATA device, a PHY reset will 5210 * be sent. 5211 * 5212 * Return value: 5213 * 0 on success / non-zero on failure 5214 **/ 5215 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, 5216 struct ipr_resource_entry *res) 5217 { 5218 struct ipr_cmnd *ipr_cmd; 5219 struct ipr_ioarcb *ioarcb; 5220 struct ipr_cmd_pkt *cmd_pkt; 5221 struct ipr_ioarcb_ata_regs *regs; 5222 u32 ioasc; 5223 5224 ENTER; 5225 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5226 ioarcb = &ipr_cmd->ioarcb; 5227 cmd_pkt = &ioarcb->cmd_pkt; 5228 5229 if (ipr_cmd->ioa_cfg->sis64) { 5230 regs = &ipr_cmd->i.ata_ioadl.regs; 5231 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 5232 } else 5233 regs = &ioarcb->u.add_data.u.regs; 5234 5235 ioarcb->res_handle = res->res_handle; 5236 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5237 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 5238 if (ipr_is_gata(res)) { 5239 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; 5240 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); 5241 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 5242 } 5243 5244 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 5245 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5246 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 5247 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { 5248 if (ipr_cmd->ioa_cfg->sis64) 5249 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 5250 sizeof(struct ipr_ioasa_gata)); 5251 else 5252 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 5253 sizeof(struct ipr_ioasa_gata)); 5254 } 5255 5256 LEAVE; 5257 return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0; 5258 } 5259 5260 /** 5261 * ipr_sata_reset - Reset the SATA port 5262 * @link: SATA link to reset 5263 * @classes: class of the attached device 5264 * 5265 * This function issues a SATA phy reset to the affected ATA link. 5266 * 5267 * Return value: 5268 * 0 on success / non-zero on failure 5269 **/ 5270 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, 5271 unsigned long deadline) 5272 { 5273 struct ipr_sata_port *sata_port = link->ap->private_data; 5274 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 5275 struct ipr_resource_entry *res; 5276 unsigned long lock_flags = 0; 5277 int rc = -ENXIO, ret; 5278 5279 ENTER; 5280 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5281 while (ioa_cfg->in_reset_reload) { 5282 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5283 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5284 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5285 } 5286 5287 res = sata_port->res; 5288 if (res) { 5289 rc = ipr_device_reset(ioa_cfg, res); 5290 *classes = res->ata_class; 5291 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5292 5293 ret = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res); 5294 if (ret != SUCCESS) { 5295 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5296 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); 5297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5298 5299 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 5300 } 5301 } else 5302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5303 5304 LEAVE; 5305 return rc; 5306 } 5307 5308 /** 5309 * ipr_eh_dev_reset - Reset the device 5310 * @scsi_cmd: scsi command struct 5311 * 5312 * This function issues a device reset to the affected device. 5313 * A LUN reset will be sent to the device first. If that does 5314 * not work, a target reset will be sent. 5315 * 5316 * Return value: 5317 * SUCCESS / FAILED 5318 **/ 5319 static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd) 5320 { 5321 struct ipr_cmnd *ipr_cmd; 5322 struct ipr_ioa_cfg *ioa_cfg; 5323 struct ipr_resource_entry *res; 5324 struct ata_port *ap; 5325 int rc = 0, i; 5326 struct ipr_hrr_queue *hrrq; 5327 5328 ENTER; 5329 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 5330 res = scsi_cmd->device->hostdata; 5331 5332 /* 5333 * If we are currently going through reset/reload, return failed. This will force the 5334 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the 5335 * reset to complete 5336 */ 5337 if (ioa_cfg->in_reset_reload) 5338 return FAILED; 5339 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) 5340 return FAILED; 5341 5342 for_each_hrrq(hrrq, ioa_cfg) { 5343 spin_lock(&hrrq->_lock); 5344 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { 5345 ipr_cmd = ioa_cfg->ipr_cmnd_list[i]; 5346 5347 if (ipr_cmd->ioarcb.res_handle == res->res_handle) { 5348 if (!ipr_cmd->qc) 5349 continue; 5350 if (ipr_cmnd_is_free(ipr_cmd)) 5351 continue; 5352 5353 ipr_cmd->done = ipr_sata_eh_done; 5354 if (!(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { 5355 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; 5356 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; 5357 } 5358 } 5359 } 5360 spin_unlock(&hrrq->_lock); 5361 } 5362 res->resetting_device = 1; 5363 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); 5364 5365 if (ipr_is_gata(res) && res->sata_port) { 5366 ap = res->sata_port->ap; 5367 spin_unlock_irq(scsi_cmd->device->host->host_lock); 5368 ata_std_error_handler(ap); 5369 spin_lock_irq(scsi_cmd->device->host->host_lock); 5370 } else 5371 rc = ipr_device_reset(ioa_cfg, res); 5372 res->resetting_device = 0; 5373 res->reset_occurred = 1; 5374 5375 LEAVE; 5376 return rc ? FAILED : SUCCESS; 5377 } 5378 5379 static int ipr_eh_dev_reset(struct scsi_cmnd *cmd) 5380 { 5381 int rc; 5382 struct ipr_ioa_cfg *ioa_cfg; 5383 struct ipr_resource_entry *res; 5384 5385 ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; 5386 res = cmd->device->hostdata; 5387 5388 if (!res) 5389 return FAILED; 5390 5391 spin_lock_irq(cmd->device->host->host_lock); 5392 rc = __ipr_eh_dev_reset(cmd); 5393 spin_unlock_irq(cmd->device->host->host_lock); 5394 5395 if (rc == SUCCESS) { 5396 if (ipr_is_gata(res) && res->sata_port) 5397 rc = ipr_wait_for_ops(ioa_cfg, res, ipr_match_res); 5398 else 5399 rc = ipr_wait_for_ops(ioa_cfg, cmd->device, ipr_match_lun); 5400 } 5401 5402 return rc; 5403 } 5404 5405 /** 5406 * ipr_bus_reset_done - Op done function for bus reset. 5407 * @ipr_cmd: ipr command struct 5408 * 5409 * This function is the op done function for a bus reset 5410 * 5411 * Return value: 5412 * none 5413 **/ 5414 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) 5415 { 5416 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5417 struct ipr_resource_entry *res; 5418 5419 ENTER; 5420 if (!ioa_cfg->sis64) 5421 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 5422 if (res->res_handle == ipr_cmd->ioarcb.res_handle) { 5423 scsi_report_bus_reset(ioa_cfg->host, res->bus); 5424 break; 5425 } 5426 } 5427 5428 /* 5429 * If abort has not completed, indicate the reset has, else call the 5430 * abort's done function to wake the sleeping eh thread 5431 */ 5432 if (ipr_cmd->sibling->sibling) 5433 ipr_cmd->sibling->sibling = NULL; 5434 else 5435 ipr_cmd->sibling->done(ipr_cmd->sibling); 5436 5437 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 5438 LEAVE; 5439 } 5440 5441 /** 5442 * ipr_abort_timeout - An abort task has timed out 5443 * @ipr_cmd: ipr command struct 5444 * 5445 * This function handles when an abort task times out. If this 5446 * happens we issue a bus reset since we have resources tied 5447 * up that must be freed before returning to the midlayer. 5448 * 5449 * Return value: 5450 * none 5451 **/ 5452 static void ipr_abort_timeout(struct timer_list *t) 5453 { 5454 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); 5455 struct ipr_cmnd *reset_cmd; 5456 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 5457 struct ipr_cmd_pkt *cmd_pkt; 5458 unsigned long lock_flags = 0; 5459 5460 ENTER; 5461 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 5462 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { 5463 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5464 return; 5465 } 5466 5467 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); 5468 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5469 ipr_cmd->sibling = reset_cmd; 5470 reset_cmd->sibling = ipr_cmd; 5471 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; 5472 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; 5473 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5474 cmd_pkt->cdb[0] = IPR_RESET_DEVICE; 5475 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; 5476 5477 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 5478 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 5479 LEAVE; 5480 } 5481 5482 /** 5483 * ipr_cancel_op - Cancel specified op 5484 * @scsi_cmd: scsi command struct 5485 * 5486 * This function cancels specified op. 5487 * 5488 * Return value: 5489 * SUCCESS / FAILED 5490 **/ 5491 static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd) 5492 { 5493 struct ipr_cmnd *ipr_cmd; 5494 struct ipr_ioa_cfg *ioa_cfg; 5495 struct ipr_resource_entry *res; 5496 struct ipr_cmd_pkt *cmd_pkt; 5497 u32 ioasc, int_reg; 5498 int i, op_found = 0; 5499 struct ipr_hrr_queue *hrrq; 5500 5501 ENTER; 5502 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; 5503 res = scsi_cmd->device->hostdata; 5504 5505 /* If we are currently going through reset/reload, return failed. 5506 * This will force the mid-layer to call ipr_eh_host_reset, 5507 * which will then go to sleep and wait for the reset to complete 5508 */ 5509 if (ioa_cfg->in_reset_reload || 5510 ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) 5511 return FAILED; 5512 if (!res) 5513 return FAILED; 5514 5515 /* 5516 * If we are aborting a timed out op, chances are that the timeout was caused 5517 * by a still not detected EEH error. In such cases, reading a register will 5518 * trigger the EEH recovery infrastructure. 5519 */ 5520 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 5521 5522 if (!ipr_is_gscsi(res)) 5523 return FAILED; 5524 5525 for_each_hrrq(hrrq, ioa_cfg) { 5526 spin_lock(&hrrq->_lock); 5527 for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { 5528 if (ioa_cfg->ipr_cmnd_list[i]->scsi_cmd == scsi_cmd) { 5529 if (!ipr_cmnd_is_free(ioa_cfg->ipr_cmnd_list[i])) { 5530 op_found = 1; 5531 break; 5532 } 5533 } 5534 } 5535 spin_unlock(&hrrq->_lock); 5536 } 5537 5538 if (!op_found) 5539 return SUCCESS; 5540 5541 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 5542 ipr_cmd->ioarcb.res_handle = res->res_handle; 5543 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 5544 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 5545 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 5546 ipr_cmd->u.sdev = scsi_cmd->device; 5547 5548 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", 5549 scsi_cmd->cmnd[0]); 5550 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); 5551 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5552 5553 /* 5554 * If the abort task timed out and we sent a bus reset, we will get 5555 * one the following responses to the abort 5556 */ 5557 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { 5558 ioasc = 0; 5559 ipr_trace; 5560 } 5561 5562 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 5563 if (!ipr_is_naca_model(res)) 5564 res->needs_sync_complete = 1; 5565 5566 LEAVE; 5567 return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS; 5568 } 5569 5570 /** 5571 * ipr_eh_abort - Abort a single op 5572 * @scsi_cmd: scsi command struct 5573 * 5574 * Return value: 5575 * 0 if scan in progress / 1 if scan is complete 5576 **/ 5577 static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time) 5578 { 5579 unsigned long lock_flags; 5580 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; 5581 int rc = 0; 5582 5583 spin_lock_irqsave(shost->host_lock, lock_flags); 5584 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done) 5585 rc = 1; 5586 if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2)) 5587 rc = 1; 5588 spin_unlock_irqrestore(shost->host_lock, lock_flags); 5589 return rc; 5590 } 5591 5592 /** 5593 * ipr_eh_host_reset - Reset the host adapter 5594 * @scsi_cmd: scsi command struct 5595 * 5596 * Return value: 5597 * SUCCESS / FAILED 5598 **/ 5599 static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd) 5600 { 5601 unsigned long flags; 5602 int rc; 5603 struct ipr_ioa_cfg *ioa_cfg; 5604 5605 ENTER; 5606 5607 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; 5608 5609 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); 5610 rc = ipr_cancel_op(scsi_cmd); 5611 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); 5612 5613 if (rc == SUCCESS) 5614 rc = ipr_wait_for_ops(ioa_cfg, scsi_cmd->device, ipr_match_lun); 5615 LEAVE; 5616 return rc; 5617 } 5618 5619 /** 5620 * ipr_handle_other_interrupt - Handle "other" interrupts 5621 * @ioa_cfg: ioa config struct 5622 * @int_reg: interrupt register 5623 * 5624 * Return value: 5625 * IRQ_NONE / IRQ_HANDLED 5626 **/ 5627 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, 5628 u32 int_reg) 5629 { 5630 irqreturn_t rc = IRQ_HANDLED; 5631 u32 int_mask_reg; 5632 5633 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 5634 int_reg &= ~int_mask_reg; 5635 5636 /* If an interrupt on the adapter did not occur, ignore it. 5637 * Or in the case of SIS 64, check for a stage change interrupt. 5638 */ 5639 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) { 5640 if (ioa_cfg->sis64) { 5641 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 5642 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 5643 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { 5644 5645 /* clear stage change */ 5646 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); 5647 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; 5648 list_del(&ioa_cfg->reset_cmd->queue); 5649 del_timer(&ioa_cfg->reset_cmd->timer); 5650 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 5651 return IRQ_HANDLED; 5652 } 5653 } 5654 5655 return IRQ_NONE; 5656 } 5657 5658 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 5659 /* Mask the interrupt */ 5660 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); 5661 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 5662 5663 list_del(&ioa_cfg->reset_cmd->queue); 5664 del_timer(&ioa_cfg->reset_cmd->timer); 5665 ipr_reset_ioa_job(ioa_cfg->reset_cmd); 5666 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { 5667 if (ioa_cfg->clear_isr) { 5668 if (ipr_debug && printk_ratelimit()) 5669 dev_err(&ioa_cfg->pdev->dev, 5670 "Spurious interrupt detected. 0x%08X\n", int_reg); 5671 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); 5672 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5673 return IRQ_NONE; 5674 } 5675 } else { 5676 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) 5677 ioa_cfg->ioa_unit_checked = 1; 5678 else if (int_reg & IPR_PCII_NO_HOST_RRQ) 5679 dev_err(&ioa_cfg->pdev->dev, 5680 "No Host RRQ. 0x%08X\n", int_reg); 5681 else 5682 dev_err(&ioa_cfg->pdev->dev, 5683 "Permanent IOA failure. 0x%08X\n", int_reg); 5684 5685 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5686 ioa_cfg->sdt_state = GET_DUMP; 5687 5688 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 5689 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5690 } 5691 5692 return rc; 5693 } 5694 5695 /** 5696 * ipr_isr_eh - Interrupt service routine error handler 5697 * @ioa_cfg: ioa config struct 5698 * @msg: message to log 5699 * 5700 * Return value: 5701 * none 5702 **/ 5703 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number) 5704 { 5705 ioa_cfg->errors_logged++; 5706 dev_err(&ioa_cfg->pdev->dev, "%s %d\n", msg, number); 5707 5708 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) 5709 ioa_cfg->sdt_state = GET_DUMP; 5710 5711 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 5712 } 5713 5714 static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget, 5715 struct list_head *doneq) 5716 { 5717 u32 ioasc; 5718 u16 cmd_index; 5719 struct ipr_cmnd *ipr_cmd; 5720 struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg; 5721 int num_hrrq = 0; 5722 5723 /* If interrupts are disabled, ignore the interrupt */ 5724 if (!hrr_queue->allow_interrupts) 5725 return 0; 5726 5727 while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 5728 hrr_queue->toggle_bit) { 5729 5730 cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) & 5731 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> 5732 IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; 5733 5734 if (unlikely(cmd_index > hrr_queue->max_cmd_id || 5735 cmd_index < hrr_queue->min_cmd_id)) { 5736 ipr_isr_eh(ioa_cfg, 5737 "Invalid response handle from IOA: ", 5738 cmd_index); 5739 break; 5740 } 5741 5742 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; 5743 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 5744 5745 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); 5746 5747 list_move_tail(&ipr_cmd->queue, doneq); 5748 5749 if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) { 5750 hrr_queue->hrrq_curr++; 5751 } else { 5752 hrr_queue->hrrq_curr = hrr_queue->hrrq_start; 5753 hrr_queue->toggle_bit ^= 1u; 5754 } 5755 num_hrrq++; 5756 if (budget > 0 && num_hrrq >= budget) 5757 break; 5758 } 5759 5760 return num_hrrq; 5761 } 5762 5763 static int ipr_iopoll(struct irq_poll *iop, int budget) 5764 { 5765 struct ipr_ioa_cfg *ioa_cfg; 5766 struct ipr_hrr_queue *hrrq; 5767 struct ipr_cmnd *ipr_cmd, *temp; 5768 unsigned long hrrq_flags; 5769 int completed_ops; 5770 LIST_HEAD(doneq); 5771 5772 hrrq = container_of(iop, struct ipr_hrr_queue, iopoll); 5773 ioa_cfg = hrrq->ioa_cfg; 5774 5775 spin_lock_irqsave(hrrq->lock, hrrq_flags); 5776 completed_ops = ipr_process_hrrq(hrrq, budget, &doneq); 5777 5778 if (completed_ops < budget) 5779 irq_poll_complete(iop); 5780 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 5781 5782 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { 5783 list_del(&ipr_cmd->queue); 5784 del_timer(&ipr_cmd->timer); 5785 ipr_cmd->fast_done(ipr_cmd); 5786 } 5787 5788 return completed_ops; 5789 } 5790 5791 /** 5792 * ipr_isr - Interrupt service routine 5793 * @irq: irq number 5794 * @devp: pointer to ioa config struct 5795 * 5796 * Return value: 5797 * IRQ_NONE / IRQ_HANDLED 5798 **/ 5799 static irqreturn_t ipr_isr(int irq, void *devp) 5800 { 5801 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; 5802 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; 5803 unsigned long hrrq_flags = 0; 5804 u32 int_reg = 0; 5805 int num_hrrq = 0; 5806 int irq_none = 0; 5807 struct ipr_cmnd *ipr_cmd, *temp; 5808 irqreturn_t rc = IRQ_NONE; 5809 LIST_HEAD(doneq); 5810 5811 spin_lock_irqsave(hrrq->lock, hrrq_flags); 5812 /* If interrupts are disabled, ignore the interrupt */ 5813 if (!hrrq->allow_interrupts) { 5814 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 5815 return IRQ_NONE; 5816 } 5817 5818 while (1) { 5819 if (ipr_process_hrrq(hrrq, -1, &doneq)) { 5820 rc = IRQ_HANDLED; 5821 5822 if (!ioa_cfg->clear_isr) 5823 break; 5824 5825 /* Clear the PCI interrupt */ 5826 num_hrrq = 0; 5827 do { 5828 writel(IPR_PCII_HRRQ_UPDATED, 5829 ioa_cfg->regs.clr_interrupt_reg32); 5830 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5831 } while (int_reg & IPR_PCII_HRRQ_UPDATED && 5832 num_hrrq++ < IPR_MAX_HRRQ_RETRIES); 5833 5834 } else if (rc == IRQ_NONE && irq_none == 0) { 5835 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 5836 irq_none++; 5837 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES && 5838 int_reg & IPR_PCII_HRRQ_UPDATED) { 5839 ipr_isr_eh(ioa_cfg, 5840 "Error clearing HRRQ: ", num_hrrq); 5841 rc = IRQ_HANDLED; 5842 break; 5843 } else 5844 break; 5845 } 5846 5847 if (unlikely(rc == IRQ_NONE)) 5848 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); 5849 5850 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 5851 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { 5852 list_del(&ipr_cmd->queue); 5853 del_timer(&ipr_cmd->timer); 5854 ipr_cmd->fast_done(ipr_cmd); 5855 } 5856 return rc; 5857 } 5858 5859 /** 5860 * ipr_isr_mhrrq - Interrupt service routine 5861 * @irq: irq number 5862 * @devp: pointer to ioa config struct 5863 * 5864 * Return value: 5865 * IRQ_NONE / IRQ_HANDLED 5866 **/ 5867 static irqreturn_t ipr_isr_mhrrq(int irq, void *devp) 5868 { 5869 struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; 5870 struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; 5871 unsigned long hrrq_flags = 0; 5872 struct ipr_cmnd *ipr_cmd, *temp; 5873 irqreturn_t rc = IRQ_NONE; 5874 LIST_HEAD(doneq); 5875 5876 spin_lock_irqsave(hrrq->lock, hrrq_flags); 5877 5878 /* If interrupts are disabled, ignore the interrupt */ 5879 if (!hrrq->allow_interrupts) { 5880 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 5881 return IRQ_NONE; 5882 } 5883 5884 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { 5885 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 5886 hrrq->toggle_bit) { 5887 irq_poll_sched(&hrrq->iopoll); 5888 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 5889 return IRQ_HANDLED; 5890 } 5891 } else { 5892 if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == 5893 hrrq->toggle_bit) 5894 5895 if (ipr_process_hrrq(hrrq, -1, &doneq)) 5896 rc = IRQ_HANDLED; 5897 } 5898 5899 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 5900 5901 list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { 5902 list_del(&ipr_cmd->queue); 5903 del_timer(&ipr_cmd->timer); 5904 ipr_cmd->fast_done(ipr_cmd); 5905 } 5906 return rc; 5907 } 5908 5909 /** 5910 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer 5911 * @ioa_cfg: ioa config struct 5912 * @ipr_cmd: ipr command struct 5913 * 5914 * Return value: 5915 * 0 on success / -1 on failure 5916 **/ 5917 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, 5918 struct ipr_cmnd *ipr_cmd) 5919 { 5920 int i, nseg; 5921 struct scatterlist *sg; 5922 u32 length; 5923 u32 ioadl_flags = 0; 5924 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5925 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5926 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; 5927 5928 length = scsi_bufflen(scsi_cmd); 5929 if (!length) 5930 return 0; 5931 5932 nseg = scsi_dma_map(scsi_cmd); 5933 if (nseg < 0) { 5934 if (printk_ratelimit()) 5935 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n"); 5936 return -1; 5937 } 5938 5939 ipr_cmd->dma_use_sg = nseg; 5940 5941 ioarcb->data_transfer_length = cpu_to_be32(length); 5942 ioarcb->ioadl_len = 5943 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 5944 5945 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5946 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5947 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5948 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) 5949 ioadl_flags = IPR_IOADL_FLAGS_READ; 5950 5951 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 5952 ioadl64[i].flags = cpu_to_be32(ioadl_flags); 5953 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); 5954 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); 5955 } 5956 5957 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 5958 return 0; 5959 } 5960 5961 /** 5962 * ipr_build_ioadl - Build a scatter/gather list and map the buffer 5963 * @ioa_cfg: ioa config struct 5964 * @ipr_cmd: ipr command struct 5965 * 5966 * Return value: 5967 * 0 on success / -1 on failure 5968 **/ 5969 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, 5970 struct ipr_cmnd *ipr_cmd) 5971 { 5972 int i, nseg; 5973 struct scatterlist *sg; 5974 u32 length; 5975 u32 ioadl_flags = 0; 5976 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 5977 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 5978 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 5979 5980 length = scsi_bufflen(scsi_cmd); 5981 if (!length) 5982 return 0; 5983 5984 nseg = scsi_dma_map(scsi_cmd); 5985 if (nseg < 0) { 5986 dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n"); 5987 return -1; 5988 } 5989 5990 ipr_cmd->dma_use_sg = nseg; 5991 5992 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { 5993 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 5994 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 5995 ioarcb->data_transfer_length = cpu_to_be32(length); 5996 ioarcb->ioadl_len = 5997 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 5998 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { 5999 ioadl_flags = IPR_IOADL_FLAGS_READ; 6000 ioarcb->read_data_transfer_length = cpu_to_be32(length); 6001 ioarcb->read_ioadl_len = 6002 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6003 } 6004 6005 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { 6006 ioadl = ioarcb->u.add_data.u.ioadl; 6007 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + 6008 offsetof(struct ipr_ioarcb, u.add_data)); 6009 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 6010 } 6011 6012 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { 6013 ioadl[i].flags_and_data_len = 6014 cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 6015 ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); 6016 } 6017 6018 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6019 return 0; 6020 } 6021 6022 /** 6023 * __ipr_erp_done - Process completion of ERP for a device 6024 * @ipr_cmd: ipr command struct 6025 * 6026 * This function copies the sense buffer into the scsi_cmd 6027 * struct and pushes the scsi_done function. 6028 * 6029 * Return value: 6030 * nothing 6031 **/ 6032 static void __ipr_erp_done(struct ipr_cmnd *ipr_cmd) 6033 { 6034 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 6035 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 6036 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6037 6038 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 6039 scsi_cmd->result |= (DID_ERROR << 16); 6040 scmd_printk(KERN_ERR, scsi_cmd, 6041 "Request Sense failed with IOASC: 0x%08X\n", ioasc); 6042 } else { 6043 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, 6044 SCSI_SENSE_BUFFERSIZE); 6045 } 6046 6047 if (res) { 6048 if (!ipr_is_naca_model(res)) 6049 res->needs_sync_complete = 1; 6050 res->in_erp = 0; 6051 } 6052 scsi_dma_unmap(ipr_cmd->scsi_cmd); 6053 scsi_cmd->scsi_done(scsi_cmd); 6054 if (ipr_cmd->eh_comp) 6055 complete(ipr_cmd->eh_comp); 6056 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 6057 } 6058 6059 /** 6060 * ipr_erp_done - Process completion of ERP for a device 6061 * @ipr_cmd: ipr command struct 6062 * 6063 * This function copies the sense buffer into the scsi_cmd 6064 * struct and pushes the scsi_done function. 6065 * 6066 * Return value: 6067 * nothing 6068 **/ 6069 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) 6070 { 6071 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; 6072 unsigned long hrrq_flags; 6073 6074 spin_lock_irqsave(&hrrq->_lock, hrrq_flags); 6075 __ipr_erp_done(ipr_cmd); 6076 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags); 6077 } 6078 6079 /** 6080 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP 6081 * @ipr_cmd: ipr command struct 6082 * 6083 * Return value: 6084 * none 6085 **/ 6086 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) 6087 { 6088 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6089 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 6090 dma_addr_t dma_addr = ipr_cmd->dma_addr; 6091 6092 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); 6093 ioarcb->data_transfer_length = 0; 6094 ioarcb->read_data_transfer_length = 0; 6095 ioarcb->ioadl_len = 0; 6096 ioarcb->read_ioadl_len = 0; 6097 ioasa->hdr.ioasc = 0; 6098 ioasa->hdr.residual_data_len = 0; 6099 6100 if (ipr_cmd->ioa_cfg->sis64) 6101 ioarcb->u.sis64_addr_data.data_ioadl_addr = 6102 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 6103 else { 6104 ioarcb->write_ioadl_addr = 6105 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 6106 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 6107 } 6108 } 6109 6110 /** 6111 * __ipr_erp_request_sense - Send request sense to a device 6112 * @ipr_cmd: ipr command struct 6113 * 6114 * This function sends a request sense to a device as a result 6115 * of a check condition. 6116 * 6117 * Return value: 6118 * nothing 6119 **/ 6120 static void __ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 6121 { 6122 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 6123 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6124 6125 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { 6126 __ipr_erp_done(ipr_cmd); 6127 return; 6128 } 6129 6130 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 6131 6132 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; 6133 cmd_pkt->cdb[0] = REQUEST_SENSE; 6134 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; 6135 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; 6136 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 6137 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); 6138 6139 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, 6140 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); 6141 6142 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, 6143 IPR_REQUEST_SENSE_TIMEOUT * 2); 6144 } 6145 6146 /** 6147 * ipr_erp_request_sense - Send request sense to a device 6148 * @ipr_cmd: ipr command struct 6149 * 6150 * This function sends a request sense to a device as a result 6151 * of a check condition. 6152 * 6153 * Return value: 6154 * nothing 6155 **/ 6156 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) 6157 { 6158 struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; 6159 unsigned long hrrq_flags; 6160 6161 spin_lock_irqsave(&hrrq->_lock, hrrq_flags); 6162 __ipr_erp_request_sense(ipr_cmd); 6163 spin_unlock_irqrestore(&hrrq->_lock, hrrq_flags); 6164 } 6165 6166 /** 6167 * ipr_erp_cancel_all - Send cancel all to a device 6168 * @ipr_cmd: ipr command struct 6169 * 6170 * This function sends a cancel all to a device to clear the 6171 * queue. If we are running TCQ on the device, QERR is set to 1, 6172 * which means all outstanding ops have been dropped on the floor. 6173 * Cancel all will return them to us. 6174 * 6175 * Return value: 6176 * nothing 6177 **/ 6178 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) 6179 { 6180 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 6181 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 6182 struct ipr_cmd_pkt *cmd_pkt; 6183 6184 res->in_erp = 1; 6185 6186 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); 6187 6188 if (!scsi_cmd->device->simple_tags) { 6189 __ipr_erp_request_sense(ipr_cmd); 6190 return; 6191 } 6192 6193 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 6194 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 6195 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; 6196 6197 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, 6198 IPR_CANCEL_ALL_TIMEOUT); 6199 } 6200 6201 /** 6202 * ipr_dump_ioasa - Dump contents of IOASA 6203 * @ioa_cfg: ioa config struct 6204 * @ipr_cmd: ipr command struct 6205 * @res: resource entry struct 6206 * 6207 * This function is invoked by the interrupt handler when ops 6208 * fail. It will log the IOASA if appropriate. Only called 6209 * for GPDD ops. 6210 * 6211 * Return value: 6212 * none 6213 **/ 6214 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, 6215 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) 6216 { 6217 int i; 6218 u16 data_len; 6219 u32 ioasc, fd_ioasc; 6220 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 6221 __be32 *ioasa_data = (__be32 *)ioasa; 6222 int error_index; 6223 6224 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; 6225 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; 6226 6227 if (0 == ioasc) 6228 return; 6229 6230 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) 6231 return; 6232 6233 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) 6234 error_index = ipr_get_error(fd_ioasc); 6235 else 6236 error_index = ipr_get_error(ioasc); 6237 6238 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { 6239 /* Don't log an error if the IOA already logged one */ 6240 if (ioasa->hdr.ilid != 0) 6241 return; 6242 6243 if (!ipr_is_gscsi(res)) 6244 return; 6245 6246 if (ipr_error_table[error_index].log_ioasa == 0) 6247 return; 6248 } 6249 6250 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); 6251 6252 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); 6253 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) 6254 data_len = sizeof(struct ipr_ioasa64); 6255 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) 6256 data_len = sizeof(struct ipr_ioasa); 6257 6258 ipr_err("IOASA Dump:\n"); 6259 6260 for (i = 0; i < data_len / 4; i += 4) { 6261 ipr_err("%08X: %08X %08X %08X %08X\n", i*4, 6262 be32_to_cpu(ioasa_data[i]), 6263 be32_to_cpu(ioasa_data[i+1]), 6264 be32_to_cpu(ioasa_data[i+2]), 6265 be32_to_cpu(ioasa_data[i+3])); 6266 } 6267 } 6268 6269 /** 6270 * ipr_gen_sense - Generate SCSI sense data from an IOASA 6271 * @ioasa: IOASA 6272 * @sense_buf: sense data buffer 6273 * 6274 * Return value: 6275 * none 6276 **/ 6277 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) 6278 { 6279 u32 failing_lba; 6280 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; 6281 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; 6282 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 6283 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); 6284 6285 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); 6286 6287 if (ioasc >= IPR_FIRST_DRIVER_IOASC) 6288 return; 6289 6290 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; 6291 6292 if (ipr_is_vset_device(res) && 6293 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && 6294 ioasa->u.vset.failing_lba_hi != 0) { 6295 sense_buf[0] = 0x72; 6296 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); 6297 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); 6298 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); 6299 6300 sense_buf[7] = 12; 6301 sense_buf[8] = 0; 6302 sense_buf[9] = 0x0A; 6303 sense_buf[10] = 0x80; 6304 6305 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); 6306 6307 sense_buf[12] = (failing_lba & 0xff000000) >> 24; 6308 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; 6309 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; 6310 sense_buf[15] = failing_lba & 0x000000ff; 6311 6312 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 6313 6314 sense_buf[16] = (failing_lba & 0xff000000) >> 24; 6315 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; 6316 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; 6317 sense_buf[19] = failing_lba & 0x000000ff; 6318 } else { 6319 sense_buf[0] = 0x70; 6320 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); 6321 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); 6322 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); 6323 6324 /* Illegal request */ 6325 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && 6326 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { 6327 sense_buf[7] = 10; /* additional length */ 6328 6329 /* IOARCB was in error */ 6330 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) 6331 sense_buf[15] = 0xC0; 6332 else /* Parameter data was invalid */ 6333 sense_buf[15] = 0x80; 6334 6335 sense_buf[16] = 6336 ((IPR_FIELD_POINTER_MASK & 6337 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; 6338 sense_buf[17] = 6339 (IPR_FIELD_POINTER_MASK & 6340 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; 6341 } else { 6342 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { 6343 if (ipr_is_vset_device(res)) 6344 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); 6345 else 6346 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); 6347 6348 sense_buf[0] |= 0x80; /* Or in the Valid bit */ 6349 sense_buf[3] = (failing_lba & 0xff000000) >> 24; 6350 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; 6351 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; 6352 sense_buf[6] = failing_lba & 0x000000ff; 6353 } 6354 6355 sense_buf[7] = 6; /* additional length */ 6356 } 6357 } 6358 } 6359 6360 /** 6361 * ipr_get_autosense - Copy autosense data to sense buffer 6362 * @ipr_cmd: ipr command struct 6363 * 6364 * This function copies the autosense buffer to the buffer 6365 * in the scsi_cmd, if there is autosense available. 6366 * 6367 * Return value: 6368 * 1 if autosense was available / 0 if not 6369 **/ 6370 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) 6371 { 6372 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; 6373 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; 6374 6375 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) 6376 return 0; 6377 6378 if (ipr_cmd->ioa_cfg->sis64) 6379 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, 6380 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), 6381 SCSI_SENSE_BUFFERSIZE)); 6382 else 6383 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, 6384 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), 6385 SCSI_SENSE_BUFFERSIZE)); 6386 return 1; 6387 } 6388 6389 /** 6390 * ipr_erp_start - Process an error response for a SCSI op 6391 * @ioa_cfg: ioa config struct 6392 * @ipr_cmd: ipr command struct 6393 * 6394 * This function determines whether or not to initiate ERP 6395 * on the affected device. 6396 * 6397 * Return value: 6398 * nothing 6399 **/ 6400 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, 6401 struct ipr_cmnd *ipr_cmd) 6402 { 6403 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 6404 struct ipr_resource_entry *res = scsi_cmd->device->hostdata; 6405 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6406 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; 6407 6408 if (!res) { 6409 __ipr_scsi_eh_done(ipr_cmd); 6410 return; 6411 } 6412 6413 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) 6414 ipr_gen_sense(ipr_cmd); 6415 6416 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 6417 6418 switch (masked_ioasc) { 6419 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: 6420 if (ipr_is_naca_model(res)) 6421 scsi_cmd->result |= (DID_ABORT << 16); 6422 else 6423 scsi_cmd->result |= (DID_IMM_RETRY << 16); 6424 break; 6425 case IPR_IOASC_IR_RESOURCE_HANDLE: 6426 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: 6427 scsi_cmd->result |= (DID_NO_CONNECT << 16); 6428 break; 6429 case IPR_IOASC_HW_SEL_TIMEOUT: 6430 scsi_cmd->result |= (DID_NO_CONNECT << 16); 6431 if (!ipr_is_naca_model(res)) 6432 res->needs_sync_complete = 1; 6433 break; 6434 case IPR_IOASC_SYNC_REQUIRED: 6435 if (!res->in_erp) 6436 res->needs_sync_complete = 1; 6437 scsi_cmd->result |= (DID_IMM_RETRY << 16); 6438 break; 6439 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ 6440 case IPR_IOASA_IR_DUAL_IOA_DISABLED: 6441 /* 6442 * exception: do not set DID_PASSTHROUGH on CHECK CONDITION 6443 * so SCSI mid-layer and upper layers handle it accordingly. 6444 */ 6445 if (scsi_cmd->result != SAM_STAT_CHECK_CONDITION) 6446 scsi_cmd->result |= (DID_PASSTHROUGH << 16); 6447 break; 6448 case IPR_IOASC_BUS_WAS_RESET: 6449 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: 6450 /* 6451 * Report the bus reset and ask for a retry. The device 6452 * will give CC/UA the next command. 6453 */ 6454 if (!res->resetting_device) 6455 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); 6456 scsi_cmd->result |= (DID_ERROR << 16); 6457 if (!ipr_is_naca_model(res)) 6458 res->needs_sync_complete = 1; 6459 break; 6460 case IPR_IOASC_HW_DEV_BUS_STATUS: 6461 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); 6462 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { 6463 if (!ipr_get_autosense(ipr_cmd)) { 6464 if (!ipr_is_naca_model(res)) { 6465 ipr_erp_cancel_all(ipr_cmd); 6466 return; 6467 } 6468 } 6469 } 6470 if (!ipr_is_naca_model(res)) 6471 res->needs_sync_complete = 1; 6472 break; 6473 case IPR_IOASC_NR_INIT_CMD_REQUIRED: 6474 break; 6475 case IPR_IOASC_IR_NON_OPTIMIZED: 6476 if (res->raw_mode) { 6477 res->raw_mode = 0; 6478 scsi_cmd->result |= (DID_IMM_RETRY << 16); 6479 } else 6480 scsi_cmd->result |= (DID_ERROR << 16); 6481 break; 6482 default: 6483 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 6484 scsi_cmd->result |= (DID_ERROR << 16); 6485 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) 6486 res->needs_sync_complete = 1; 6487 break; 6488 } 6489 6490 scsi_dma_unmap(ipr_cmd->scsi_cmd); 6491 scsi_cmd->scsi_done(scsi_cmd); 6492 if (ipr_cmd->eh_comp) 6493 complete(ipr_cmd->eh_comp); 6494 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 6495 } 6496 6497 /** 6498 * ipr_scsi_done - mid-layer done function 6499 * @ipr_cmd: ipr command struct 6500 * 6501 * This function is invoked by the interrupt handler for 6502 * ops generated by the SCSI mid-layer 6503 * 6504 * Return value: 6505 * none 6506 **/ 6507 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) 6508 { 6509 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6510 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; 6511 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6512 unsigned long lock_flags; 6513 6514 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); 6515 6516 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { 6517 scsi_dma_unmap(scsi_cmd); 6518 6519 spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags); 6520 scsi_cmd->scsi_done(scsi_cmd); 6521 if (ipr_cmd->eh_comp) 6522 complete(ipr_cmd->eh_comp); 6523 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 6524 spin_unlock_irqrestore(ipr_cmd->hrrq->lock, lock_flags); 6525 } else { 6526 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 6527 spin_lock(&ipr_cmd->hrrq->_lock); 6528 ipr_erp_start(ioa_cfg, ipr_cmd); 6529 spin_unlock(&ipr_cmd->hrrq->_lock); 6530 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 6531 } 6532 } 6533 6534 /** 6535 * ipr_queuecommand - Queue a mid-layer request 6536 * @shost: scsi host struct 6537 * @scsi_cmd: scsi command struct 6538 * 6539 * This function queues a request generated by the mid-layer. 6540 * 6541 * Return value: 6542 * 0 on success 6543 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy 6544 * SCSI_MLQUEUE_HOST_BUSY if host is busy 6545 **/ 6546 static int ipr_queuecommand(struct Scsi_Host *shost, 6547 struct scsi_cmnd *scsi_cmd) 6548 { 6549 struct ipr_ioa_cfg *ioa_cfg; 6550 struct ipr_resource_entry *res; 6551 struct ipr_ioarcb *ioarcb; 6552 struct ipr_cmnd *ipr_cmd; 6553 unsigned long hrrq_flags, lock_flags; 6554 int rc; 6555 struct ipr_hrr_queue *hrrq; 6556 int hrrq_id; 6557 6558 ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; 6559 6560 scsi_cmd->result = (DID_OK << 16); 6561 res = scsi_cmd->device->hostdata; 6562 6563 if (ipr_is_gata(res) && res->sata_port) { 6564 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 6565 rc = ata_sas_queuecmd(scsi_cmd, res->sata_port->ap); 6566 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 6567 return rc; 6568 } 6569 6570 hrrq_id = ipr_get_hrrq_index(ioa_cfg); 6571 hrrq = &ioa_cfg->hrrq[hrrq_id]; 6572 6573 spin_lock_irqsave(hrrq->lock, hrrq_flags); 6574 /* 6575 * We are currently blocking all devices due to a host reset 6576 * We have told the host to stop giving us new requests, but 6577 * ERP ops don't count. FIXME 6578 */ 6579 if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) { 6580 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 6581 return SCSI_MLQUEUE_HOST_BUSY; 6582 } 6583 6584 /* 6585 * FIXME - Create scsi_set_host_offline interface 6586 * and the ioa_is_dead check can be removed 6587 */ 6588 if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) { 6589 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 6590 goto err_nodev; 6591 } 6592 6593 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); 6594 if (ipr_cmd == NULL) { 6595 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 6596 return SCSI_MLQUEUE_HOST_BUSY; 6597 } 6598 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 6599 6600 ipr_init_ipr_cmnd(ipr_cmd, ipr_scsi_done); 6601 ioarcb = &ipr_cmd->ioarcb; 6602 6603 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); 6604 ipr_cmd->scsi_cmd = scsi_cmd; 6605 ipr_cmd->done = ipr_scsi_eh_done; 6606 6607 if (ipr_is_gscsi(res)) { 6608 if (scsi_cmd->underflow == 0) 6609 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 6610 6611 if (res->reset_occurred) { 6612 res->reset_occurred = 0; 6613 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; 6614 } 6615 } 6616 6617 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { 6618 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 6619 6620 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; 6621 if (scsi_cmd->flags & SCMD_TAGGED) 6622 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK; 6623 else 6624 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK; 6625 } 6626 6627 if (scsi_cmd->cmnd[0] >= 0xC0 && 6628 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) { 6629 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 6630 } 6631 if (res->raw_mode && ipr_is_af_dasd_device(res)) { 6632 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE; 6633 6634 if (scsi_cmd->underflow == 0) 6635 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 6636 } 6637 6638 if (ioa_cfg->sis64) 6639 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); 6640 else 6641 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); 6642 6643 spin_lock_irqsave(hrrq->lock, hrrq_flags); 6644 if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) { 6645 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q); 6646 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 6647 if (!rc) 6648 scsi_dma_unmap(scsi_cmd); 6649 return SCSI_MLQUEUE_HOST_BUSY; 6650 } 6651 6652 if (unlikely(hrrq->ioa_is_dead)) { 6653 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_free_q); 6654 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 6655 scsi_dma_unmap(scsi_cmd); 6656 goto err_nodev; 6657 } 6658 6659 ioarcb->res_handle = res->res_handle; 6660 if (res->needs_sync_complete) { 6661 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; 6662 res->needs_sync_complete = 0; 6663 } 6664 list_add_tail(&ipr_cmd->queue, &hrrq->hrrq_pending_q); 6665 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 6666 ipr_send_command(ipr_cmd); 6667 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 6668 return 0; 6669 6670 err_nodev: 6671 spin_lock_irqsave(hrrq->lock, hrrq_flags); 6672 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 6673 scsi_cmd->result = (DID_NO_CONNECT << 16); 6674 scsi_cmd->scsi_done(scsi_cmd); 6675 spin_unlock_irqrestore(hrrq->lock, hrrq_flags); 6676 return 0; 6677 } 6678 6679 /** 6680 * ipr_ioctl - IOCTL handler 6681 * @sdev: scsi device struct 6682 * @cmd: IOCTL cmd 6683 * @arg: IOCTL arg 6684 * 6685 * Return value: 6686 * 0 on success / other on failure 6687 **/ 6688 static int ipr_ioctl(struct scsi_device *sdev, unsigned int cmd, 6689 void __user *arg) 6690 { 6691 struct ipr_resource_entry *res; 6692 6693 res = (struct ipr_resource_entry *)sdev->hostdata; 6694 if (res && ipr_is_gata(res)) { 6695 if (cmd == HDIO_GET_IDENTITY) 6696 return -ENOTTY; 6697 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); 6698 } 6699 6700 return -EINVAL; 6701 } 6702 6703 /** 6704 * ipr_info - Get information about the card/driver 6705 * @scsi_host: scsi host struct 6706 * 6707 * Return value: 6708 * pointer to buffer with description string 6709 **/ 6710 static const char *ipr_ioa_info(struct Scsi_Host *host) 6711 { 6712 static char buffer[512]; 6713 struct ipr_ioa_cfg *ioa_cfg; 6714 unsigned long lock_flags = 0; 6715 6716 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; 6717 6718 spin_lock_irqsave(host->host_lock, lock_flags); 6719 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); 6720 spin_unlock_irqrestore(host->host_lock, lock_flags); 6721 6722 return buffer; 6723 } 6724 6725 static struct scsi_host_template driver_template = { 6726 .module = THIS_MODULE, 6727 .name = "IPR", 6728 .info = ipr_ioa_info, 6729 .ioctl = ipr_ioctl, 6730 #ifdef CONFIG_COMPAT 6731 .compat_ioctl = ipr_ioctl, 6732 #endif 6733 .queuecommand = ipr_queuecommand, 6734 .eh_abort_handler = ipr_eh_abort, 6735 .eh_device_reset_handler = ipr_eh_dev_reset, 6736 .eh_host_reset_handler = ipr_eh_host_reset, 6737 .slave_alloc = ipr_slave_alloc, 6738 .slave_configure = ipr_slave_configure, 6739 .slave_destroy = ipr_slave_destroy, 6740 .scan_finished = ipr_scan_finished, 6741 .target_alloc = ipr_target_alloc, 6742 .target_destroy = ipr_target_destroy, 6743 .change_queue_depth = ipr_change_queue_depth, 6744 .bios_param = ipr_biosparam, 6745 .can_queue = IPR_MAX_COMMANDS, 6746 .this_id = -1, 6747 .sg_tablesize = IPR_MAX_SGLIST, 6748 .max_sectors = IPR_IOA_MAX_SECTORS, 6749 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 6750 .shost_attrs = ipr_ioa_attrs, 6751 .sdev_attrs = ipr_dev_attrs, 6752 .proc_name = IPR_NAME, 6753 }; 6754 6755 /** 6756 * ipr_ata_phy_reset - libata phy_reset handler 6757 * @ap: ata port to reset 6758 * 6759 **/ 6760 static void ipr_ata_phy_reset(struct ata_port *ap) 6761 { 6762 unsigned long flags; 6763 struct ipr_sata_port *sata_port = ap->private_data; 6764 struct ipr_resource_entry *res = sata_port->res; 6765 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6766 int rc; 6767 6768 ENTER; 6769 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6770 while (ioa_cfg->in_reset_reload) { 6771 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6772 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 6773 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6774 } 6775 6776 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) 6777 goto out_unlock; 6778 6779 rc = ipr_device_reset(ioa_cfg, res); 6780 6781 if (rc) { 6782 ap->link.device[0].class = ATA_DEV_NONE; 6783 goto out_unlock; 6784 } 6785 6786 ap->link.device[0].class = res->ata_class; 6787 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 6788 ap->link.device[0].class = ATA_DEV_NONE; 6789 6790 out_unlock: 6791 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6792 LEAVE; 6793 } 6794 6795 /** 6796 * ipr_ata_post_internal - Cleanup after an internal command 6797 * @qc: ATA queued command 6798 * 6799 * Return value: 6800 * none 6801 **/ 6802 static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 6803 { 6804 struct ipr_sata_port *sata_port = qc->ap->private_data; 6805 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6806 struct ipr_cmnd *ipr_cmd; 6807 struct ipr_hrr_queue *hrrq; 6808 unsigned long flags; 6809 6810 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6811 while (ioa_cfg->in_reset_reload) { 6812 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6813 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 6814 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6815 } 6816 6817 for_each_hrrq(hrrq, ioa_cfg) { 6818 spin_lock(&hrrq->_lock); 6819 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { 6820 if (ipr_cmd->qc == qc) { 6821 ipr_device_reset(ioa_cfg, sata_port->res); 6822 break; 6823 } 6824 } 6825 spin_unlock(&hrrq->_lock); 6826 } 6827 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6828 } 6829 6830 /** 6831 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 6832 * @regs: destination 6833 * @tf: source ATA taskfile 6834 * 6835 * Return value: 6836 * none 6837 **/ 6838 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 6839 struct ata_taskfile *tf) 6840 { 6841 regs->feature = tf->feature; 6842 regs->nsect = tf->nsect; 6843 regs->lbal = tf->lbal; 6844 regs->lbam = tf->lbam; 6845 regs->lbah = tf->lbah; 6846 regs->device = tf->device; 6847 regs->command = tf->command; 6848 regs->hob_feature = tf->hob_feature; 6849 regs->hob_nsect = tf->hob_nsect; 6850 regs->hob_lbal = tf->hob_lbal; 6851 regs->hob_lbam = tf->hob_lbam; 6852 regs->hob_lbah = tf->hob_lbah; 6853 regs->ctl = tf->ctl; 6854 } 6855 6856 /** 6857 * ipr_sata_done - done function for SATA commands 6858 * @ipr_cmd: ipr command struct 6859 * 6860 * This function is invoked by the interrupt handler for 6861 * ops generated by the SCSI mid-layer to SATA devices 6862 * 6863 * Return value: 6864 * none 6865 **/ 6866 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 6867 { 6868 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6869 struct ata_queued_cmd *qc = ipr_cmd->qc; 6870 struct ipr_sata_port *sata_port = qc->ap->private_data; 6871 struct ipr_resource_entry *res = sata_port->res; 6872 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6873 6874 spin_lock(&ipr_cmd->hrrq->_lock); 6875 if (ipr_cmd->ioa_cfg->sis64) 6876 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 6877 sizeof(struct ipr_ioasa_gata)); 6878 else 6879 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 6880 sizeof(struct ipr_ioasa_gata)); 6881 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 6882 6883 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 6884 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 6885 6886 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 6887 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); 6888 else 6889 qc->err_mask |= ac_err_mask(sata_port->ioasa.status); 6890 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 6891 spin_unlock(&ipr_cmd->hrrq->_lock); 6892 ata_qc_complete(qc); 6893 } 6894 6895 /** 6896 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 6897 * @ipr_cmd: ipr command struct 6898 * @qc: ATA queued command 6899 * 6900 **/ 6901 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 6902 struct ata_queued_cmd *qc) 6903 { 6904 u32 ioadl_flags = 0; 6905 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6906 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64; 6907 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 6908 int len = qc->nbytes; 6909 struct scatterlist *sg; 6910 unsigned int si; 6911 dma_addr_t dma_addr = ipr_cmd->dma_addr; 6912 6913 if (len == 0) 6914 return; 6915 6916 if (qc->dma_dir == DMA_TO_DEVICE) { 6917 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6918 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6919 } else if (qc->dma_dir == DMA_FROM_DEVICE) 6920 ioadl_flags = IPR_IOADL_FLAGS_READ; 6921 6922 ioarcb->data_transfer_length = cpu_to_be32(len); 6923 ioarcb->ioadl_len = 6924 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 6925 ioarcb->u.sis64_addr_data.data_ioadl_addr = 6926 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64)); 6927 6928 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6929 ioadl64->flags = cpu_to_be32(ioadl_flags); 6930 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 6931 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 6932 6933 last_ioadl64 = ioadl64; 6934 ioadl64++; 6935 } 6936 6937 if (likely(last_ioadl64)) 6938 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6939 } 6940 6941 /** 6942 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 6943 * @ipr_cmd: ipr command struct 6944 * @qc: ATA queued command 6945 * 6946 **/ 6947 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 6948 struct ata_queued_cmd *qc) 6949 { 6950 u32 ioadl_flags = 0; 6951 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6952 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 6953 struct ipr_ioadl_desc *last_ioadl = NULL; 6954 int len = qc->nbytes; 6955 struct scatterlist *sg; 6956 unsigned int si; 6957 6958 if (len == 0) 6959 return; 6960 6961 if (qc->dma_dir == DMA_TO_DEVICE) { 6962 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6963 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6964 ioarcb->data_transfer_length = cpu_to_be32(len); 6965 ioarcb->ioadl_len = 6966 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6967 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 6968 ioadl_flags = IPR_IOADL_FLAGS_READ; 6969 ioarcb->read_data_transfer_length = cpu_to_be32(len); 6970 ioarcb->read_ioadl_len = 6971 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6972 } 6973 6974 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6975 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 6976 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 6977 6978 last_ioadl = ioadl; 6979 ioadl++; 6980 } 6981 6982 if (likely(last_ioadl)) 6983 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6984 } 6985 6986 /** 6987 * ipr_qc_defer - Get a free ipr_cmd 6988 * @qc: queued command 6989 * 6990 * Return value: 6991 * 0 if success 6992 **/ 6993 static int ipr_qc_defer(struct ata_queued_cmd *qc) 6994 { 6995 struct ata_port *ap = qc->ap; 6996 struct ipr_sata_port *sata_port = ap->private_data; 6997 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6998 struct ipr_cmnd *ipr_cmd; 6999 struct ipr_hrr_queue *hrrq; 7000 int hrrq_id; 7001 7002 hrrq_id = ipr_get_hrrq_index(ioa_cfg); 7003 hrrq = &ioa_cfg->hrrq[hrrq_id]; 7004 7005 qc->lldd_task = NULL; 7006 spin_lock(&hrrq->_lock); 7007 if (unlikely(hrrq->ioa_is_dead)) { 7008 spin_unlock(&hrrq->_lock); 7009 return 0; 7010 } 7011 7012 if (unlikely(!hrrq->allow_cmds)) { 7013 spin_unlock(&hrrq->_lock); 7014 return ATA_DEFER_LINK; 7015 } 7016 7017 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); 7018 if (ipr_cmd == NULL) { 7019 spin_unlock(&hrrq->_lock); 7020 return ATA_DEFER_LINK; 7021 } 7022 7023 qc->lldd_task = ipr_cmd; 7024 spin_unlock(&hrrq->_lock); 7025 return 0; 7026 } 7027 7028 /** 7029 * ipr_qc_issue - Issue a SATA qc to a device 7030 * @qc: queued command 7031 * 7032 * Return value: 7033 * 0 if success 7034 **/ 7035 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 7036 { 7037 struct ata_port *ap = qc->ap; 7038 struct ipr_sata_port *sata_port = ap->private_data; 7039 struct ipr_resource_entry *res = sata_port->res; 7040 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 7041 struct ipr_cmnd *ipr_cmd; 7042 struct ipr_ioarcb *ioarcb; 7043 struct ipr_ioarcb_ata_regs *regs; 7044 7045 if (qc->lldd_task == NULL) 7046 ipr_qc_defer(qc); 7047 7048 ipr_cmd = qc->lldd_task; 7049 if (ipr_cmd == NULL) 7050 return AC_ERR_SYSTEM; 7051 7052 qc->lldd_task = NULL; 7053 spin_lock(&ipr_cmd->hrrq->_lock); 7054 if (unlikely(!ipr_cmd->hrrq->allow_cmds || 7055 ipr_cmd->hrrq->ioa_is_dead)) { 7056 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 7057 spin_unlock(&ipr_cmd->hrrq->_lock); 7058 return AC_ERR_SYSTEM; 7059 } 7060 7061 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done); 7062 ioarcb = &ipr_cmd->ioarcb; 7063 7064 if (ioa_cfg->sis64) { 7065 regs = &ipr_cmd->i.ata_ioadl.regs; 7066 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 7067 } else 7068 regs = &ioarcb->u.add_data.u.regs; 7069 7070 memset(regs, 0, sizeof(*regs)); 7071 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 7072 7073 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 7074 ipr_cmd->qc = qc; 7075 ipr_cmd->done = ipr_sata_done; 7076 ipr_cmd->ioarcb.res_handle = res->res_handle; 7077 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 7078 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 7079 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 7080 ipr_cmd->dma_use_sg = qc->n_elem; 7081 7082 if (ioa_cfg->sis64) 7083 ipr_build_ata_ioadl64(ipr_cmd, qc); 7084 else 7085 ipr_build_ata_ioadl(ipr_cmd, qc); 7086 7087 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 7088 ipr_copy_sata_tf(regs, &qc->tf); 7089 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 7090 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 7091 7092 switch (qc->tf.protocol) { 7093 case ATA_PROT_NODATA: 7094 case ATA_PROT_PIO: 7095 break; 7096 7097 case ATA_PROT_DMA: 7098 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 7099 break; 7100 7101 case ATAPI_PROT_PIO: 7102 case ATAPI_PROT_NODATA: 7103 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 7104 break; 7105 7106 case ATAPI_PROT_DMA: 7107 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 7108 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 7109 break; 7110 7111 default: 7112 WARN_ON(1); 7113 spin_unlock(&ipr_cmd->hrrq->_lock); 7114 return AC_ERR_INVALID; 7115 } 7116 7117 ipr_send_command(ipr_cmd); 7118 spin_unlock(&ipr_cmd->hrrq->_lock); 7119 7120 return 0; 7121 } 7122 7123 /** 7124 * ipr_qc_fill_rtf - Read result TF 7125 * @qc: ATA queued command 7126 * 7127 * Return value: 7128 * true 7129 **/ 7130 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 7131 { 7132 struct ipr_sata_port *sata_port = qc->ap->private_data; 7133 struct ipr_ioasa_gata *g = &sata_port->ioasa; 7134 struct ata_taskfile *tf = &qc->result_tf; 7135 7136 tf->feature = g->error; 7137 tf->nsect = g->nsect; 7138 tf->lbal = g->lbal; 7139 tf->lbam = g->lbam; 7140 tf->lbah = g->lbah; 7141 tf->device = g->device; 7142 tf->command = g->status; 7143 tf->hob_nsect = g->hob_nsect; 7144 tf->hob_lbal = g->hob_lbal; 7145 tf->hob_lbam = g->hob_lbam; 7146 tf->hob_lbah = g->hob_lbah; 7147 7148 return true; 7149 } 7150 7151 static struct ata_port_operations ipr_sata_ops = { 7152 .phy_reset = ipr_ata_phy_reset, 7153 .hardreset = ipr_sata_reset, 7154 .post_internal_cmd = ipr_ata_post_internal, 7155 .qc_prep = ata_noop_qc_prep, 7156 .qc_defer = ipr_qc_defer, 7157 .qc_issue = ipr_qc_issue, 7158 .qc_fill_rtf = ipr_qc_fill_rtf, 7159 .port_start = ata_sas_port_start, 7160 .port_stop = ata_sas_port_stop 7161 }; 7162 7163 static struct ata_port_info sata_port_info = { 7164 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA | 7165 ATA_FLAG_SAS_HOST, 7166 .pio_mask = ATA_PIO4_ONLY, 7167 .mwdma_mask = ATA_MWDMA2, 7168 .udma_mask = ATA_UDMA6, 7169 .port_ops = &ipr_sata_ops 7170 }; 7171 7172 #ifdef CONFIG_PPC_PSERIES 7173 static const u16 ipr_blocked_processors[] = { 7174 PVR_NORTHSTAR, 7175 PVR_PULSAR, 7176 PVR_POWER4, 7177 PVR_ICESTAR, 7178 PVR_SSTAR, 7179 PVR_POWER4p, 7180 PVR_630, 7181 PVR_630p 7182 }; 7183 7184 /** 7185 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 7186 * @ioa_cfg: ioa cfg struct 7187 * 7188 * Adapters that use Gemstone revision < 3.1 do not work reliably on 7189 * certain pSeries hardware. This function determines if the given 7190 * adapter is in one of these confgurations or not. 7191 * 7192 * Return value: 7193 * 1 if adapter is not supported / 0 if adapter is supported 7194 **/ 7195 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 7196 { 7197 int i; 7198 7199 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 7200 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) { 7201 if (pvr_version_is(ipr_blocked_processors[i])) 7202 return 1; 7203 } 7204 } 7205 return 0; 7206 } 7207 #else 7208 #define ipr_invalid_adapter(ioa_cfg) 0 7209 #endif 7210 7211 /** 7212 * ipr_ioa_bringdown_done - IOA bring down completion. 7213 * @ipr_cmd: ipr command struct 7214 * 7215 * This function processes the completion of an adapter bring down. 7216 * It wakes any reset sleepers. 7217 * 7218 * Return value: 7219 * IPR_RC_JOB_RETURN 7220 **/ 7221 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 7222 { 7223 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7224 int i; 7225 7226 ENTER; 7227 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { 7228 ipr_trace; 7229 ioa_cfg->scsi_unblock = 1; 7230 schedule_work(&ioa_cfg->work_q); 7231 } 7232 7233 ioa_cfg->in_reset_reload = 0; 7234 ioa_cfg->reset_retries = 0; 7235 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 7236 spin_lock(&ioa_cfg->hrrq[i]._lock); 7237 ioa_cfg->hrrq[i].ioa_is_dead = 1; 7238 spin_unlock(&ioa_cfg->hrrq[i]._lock); 7239 } 7240 wmb(); 7241 7242 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 7243 wake_up_all(&ioa_cfg->reset_wait_q); 7244 LEAVE; 7245 7246 return IPR_RC_JOB_RETURN; 7247 } 7248 7249 /** 7250 * ipr_ioa_reset_done - IOA reset completion. 7251 * @ipr_cmd: ipr command struct 7252 * 7253 * This function processes the completion of an adapter reset. 7254 * It schedules any necessary mid-layer add/removes and 7255 * wakes any reset sleepers. 7256 * 7257 * Return value: 7258 * IPR_RC_JOB_RETURN 7259 **/ 7260 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 7261 { 7262 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7263 struct ipr_resource_entry *res; 7264 int j; 7265 7266 ENTER; 7267 ioa_cfg->in_reset_reload = 0; 7268 for (j = 0; j < ioa_cfg->hrrq_num; j++) { 7269 spin_lock(&ioa_cfg->hrrq[j]._lock); 7270 ioa_cfg->hrrq[j].allow_cmds = 1; 7271 spin_unlock(&ioa_cfg->hrrq[j]._lock); 7272 } 7273 wmb(); 7274 ioa_cfg->reset_cmd = NULL; 7275 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 7276 7277 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 7278 if (res->add_to_ml || res->del_from_ml) { 7279 ipr_trace; 7280 break; 7281 } 7282 } 7283 schedule_work(&ioa_cfg->work_q); 7284 7285 for (j = 0; j < IPR_NUM_HCAMS; j++) { 7286 list_del_init(&ioa_cfg->hostrcb[j]->queue); 7287 if (j < IPR_NUM_LOG_HCAMS) 7288 ipr_send_hcam(ioa_cfg, 7289 IPR_HCAM_CDB_OP_CODE_LOG_DATA, 7290 ioa_cfg->hostrcb[j]); 7291 else 7292 ipr_send_hcam(ioa_cfg, 7293 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 7294 ioa_cfg->hostrcb[j]); 7295 } 7296 7297 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 7298 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 7299 7300 ioa_cfg->reset_retries = 0; 7301 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 7302 wake_up_all(&ioa_cfg->reset_wait_q); 7303 7304 ioa_cfg->scsi_unblock = 1; 7305 schedule_work(&ioa_cfg->work_q); 7306 LEAVE; 7307 return IPR_RC_JOB_RETURN; 7308 } 7309 7310 /** 7311 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 7312 * @supported_dev: supported device struct 7313 * @vpids: vendor product id struct 7314 * 7315 * Return value: 7316 * none 7317 **/ 7318 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 7319 struct ipr_std_inq_vpids *vpids) 7320 { 7321 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 7322 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 7323 supported_dev->num_records = 1; 7324 supported_dev->data_length = 7325 cpu_to_be16(sizeof(struct ipr_supported_device)); 7326 supported_dev->reserved = 0; 7327 } 7328 7329 /** 7330 * ipr_set_supported_devs - Send Set Supported Devices for a device 7331 * @ipr_cmd: ipr command struct 7332 * 7333 * This function sends a Set Supported Devices to the adapter 7334 * 7335 * Return value: 7336 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7337 **/ 7338 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 7339 { 7340 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7341 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 7342 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7343 struct ipr_resource_entry *res = ipr_cmd->u.res; 7344 7345 ipr_cmd->job_step = ipr_ioa_reset_done; 7346 7347 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 7348 if (!ipr_is_scsi_disk(res)) 7349 continue; 7350 7351 ipr_cmd->u.res = res; 7352 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 7353 7354 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7355 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 7356 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7357 7358 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 7359 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 7360 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 7361 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 7362 7363 ipr_init_ioadl(ipr_cmd, 7364 ioa_cfg->vpd_cbs_dma + 7365 offsetof(struct ipr_misc_cbs, supp_dev), 7366 sizeof(struct ipr_supported_device), 7367 IPR_IOADL_FLAGS_WRITE_LAST); 7368 7369 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7370 IPR_SET_SUP_DEVICE_TIMEOUT); 7371 7372 if (!ioa_cfg->sis64) 7373 ipr_cmd->job_step = ipr_set_supported_devs; 7374 LEAVE; 7375 return IPR_RC_JOB_RETURN; 7376 } 7377 7378 LEAVE; 7379 return IPR_RC_JOB_CONTINUE; 7380 } 7381 7382 /** 7383 * ipr_get_mode_page - Locate specified mode page 7384 * @mode_pages: mode page buffer 7385 * @page_code: page code to find 7386 * @len: minimum required length for mode page 7387 * 7388 * Return value: 7389 * pointer to mode page / NULL on failure 7390 **/ 7391 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 7392 u32 page_code, u32 len) 7393 { 7394 struct ipr_mode_page_hdr *mode_hdr; 7395 u32 page_length; 7396 u32 length; 7397 7398 if (!mode_pages || (mode_pages->hdr.length == 0)) 7399 return NULL; 7400 7401 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 7402 mode_hdr = (struct ipr_mode_page_hdr *) 7403 (mode_pages->data + mode_pages->hdr.block_desc_len); 7404 7405 while (length) { 7406 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 7407 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 7408 return mode_hdr; 7409 break; 7410 } else { 7411 page_length = (sizeof(struct ipr_mode_page_hdr) + 7412 mode_hdr->page_length); 7413 length -= page_length; 7414 mode_hdr = (struct ipr_mode_page_hdr *) 7415 ((unsigned long)mode_hdr + page_length); 7416 } 7417 } 7418 return NULL; 7419 } 7420 7421 /** 7422 * ipr_check_term_power - Check for term power errors 7423 * @ioa_cfg: ioa config struct 7424 * @mode_pages: IOAFP mode pages buffer 7425 * 7426 * Check the IOAFP's mode page 28 for term power errors 7427 * 7428 * Return value: 7429 * nothing 7430 **/ 7431 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 7432 struct ipr_mode_pages *mode_pages) 7433 { 7434 int i; 7435 int entry_length; 7436 struct ipr_dev_bus_entry *bus; 7437 struct ipr_mode_page28 *mode_page; 7438 7439 mode_page = ipr_get_mode_page(mode_pages, 0x28, 7440 sizeof(struct ipr_mode_page28)); 7441 7442 entry_length = mode_page->entry_length; 7443 7444 bus = mode_page->bus; 7445 7446 for (i = 0; i < mode_page->num_entries; i++) { 7447 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 7448 dev_err(&ioa_cfg->pdev->dev, 7449 "Term power is absent on scsi bus %d\n", 7450 bus->res_addr.bus); 7451 } 7452 7453 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 7454 } 7455 } 7456 7457 /** 7458 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 7459 * @ioa_cfg: ioa config struct 7460 * 7461 * Looks through the config table checking for SES devices. If 7462 * the SES device is in the SES table indicating a maximum SCSI 7463 * bus speed, the speed is limited for the bus. 7464 * 7465 * Return value: 7466 * none 7467 **/ 7468 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 7469 { 7470 u32 max_xfer_rate; 7471 int i; 7472 7473 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 7474 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 7475 ioa_cfg->bus_attr[i].bus_width); 7476 7477 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 7478 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 7479 } 7480 } 7481 7482 /** 7483 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 7484 * @ioa_cfg: ioa config struct 7485 * @mode_pages: mode page 28 buffer 7486 * 7487 * Updates mode page 28 based on driver configuration 7488 * 7489 * Return value: 7490 * none 7491 **/ 7492 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 7493 struct ipr_mode_pages *mode_pages) 7494 { 7495 int i, entry_length; 7496 struct ipr_dev_bus_entry *bus; 7497 struct ipr_bus_attributes *bus_attr; 7498 struct ipr_mode_page28 *mode_page; 7499 7500 mode_page = ipr_get_mode_page(mode_pages, 0x28, 7501 sizeof(struct ipr_mode_page28)); 7502 7503 entry_length = mode_page->entry_length; 7504 7505 /* Loop for each device bus entry */ 7506 for (i = 0, bus = mode_page->bus; 7507 i < mode_page->num_entries; 7508 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 7509 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 7510 dev_err(&ioa_cfg->pdev->dev, 7511 "Invalid resource address reported: 0x%08X\n", 7512 IPR_GET_PHYS_LOC(bus->res_addr)); 7513 continue; 7514 } 7515 7516 bus_attr = &ioa_cfg->bus_attr[i]; 7517 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 7518 bus->bus_width = bus_attr->bus_width; 7519 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 7520 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 7521 if (bus_attr->qas_enabled) 7522 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 7523 else 7524 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 7525 } 7526 } 7527 7528 /** 7529 * ipr_build_mode_select - Build a mode select command 7530 * @ipr_cmd: ipr command struct 7531 * @res_handle: resource handle to send command to 7532 * @parm: Byte 2 of Mode Sense command 7533 * @dma_addr: DMA buffer address 7534 * @xfer_len: data transfer length 7535 * 7536 * Return value: 7537 * none 7538 **/ 7539 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 7540 __be32 res_handle, u8 parm, 7541 dma_addr_t dma_addr, u8 xfer_len) 7542 { 7543 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7544 7545 ioarcb->res_handle = res_handle; 7546 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7547 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 7548 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 7549 ioarcb->cmd_pkt.cdb[1] = parm; 7550 ioarcb->cmd_pkt.cdb[4] = xfer_len; 7551 7552 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 7553 } 7554 7555 /** 7556 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 7557 * @ipr_cmd: ipr command struct 7558 * 7559 * This function sets up the SCSI bus attributes and sends 7560 * a Mode Select for Page 28 to activate them. 7561 * 7562 * Return value: 7563 * IPR_RC_JOB_RETURN 7564 **/ 7565 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 7566 { 7567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7568 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 7569 int length; 7570 7571 ENTER; 7572 ipr_scsi_bus_speed_limit(ioa_cfg); 7573 ipr_check_term_power(ioa_cfg, mode_pages); 7574 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 7575 length = mode_pages->hdr.length + 1; 7576 mode_pages->hdr.length = 0; 7577 7578 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 7579 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 7580 length); 7581 7582 ipr_cmd->job_step = ipr_set_supported_devs; 7583 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 7584 struct ipr_resource_entry, queue); 7585 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7586 7587 LEAVE; 7588 return IPR_RC_JOB_RETURN; 7589 } 7590 7591 /** 7592 * ipr_build_mode_sense - Builds a mode sense command 7593 * @ipr_cmd: ipr command struct 7594 * @res: resource entry struct 7595 * @parm: Byte 2 of mode sense command 7596 * @dma_addr: DMA address of mode sense buffer 7597 * @xfer_len: Size of DMA buffer 7598 * 7599 * Return value: 7600 * none 7601 **/ 7602 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 7603 __be32 res_handle, 7604 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 7605 { 7606 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7607 7608 ioarcb->res_handle = res_handle; 7609 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 7610 ioarcb->cmd_pkt.cdb[2] = parm; 7611 ioarcb->cmd_pkt.cdb[4] = xfer_len; 7612 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7613 7614 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 7615 } 7616 7617 /** 7618 * ipr_reset_cmd_failed - Handle failure of IOA reset command 7619 * @ipr_cmd: ipr command struct 7620 * 7621 * This function handles the failure of an IOA bringup command. 7622 * 7623 * Return value: 7624 * IPR_RC_JOB_RETURN 7625 **/ 7626 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 7627 { 7628 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7629 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7630 7631 dev_err(&ioa_cfg->pdev->dev, 7632 "0x%02X failed with IOASC: 0x%08X\n", 7633 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 7634 7635 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7636 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 7637 return IPR_RC_JOB_RETURN; 7638 } 7639 7640 /** 7641 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 7642 * @ipr_cmd: ipr command struct 7643 * 7644 * This function handles the failure of a Mode Sense to the IOAFP. 7645 * Some adapters do not handle all mode pages. 7646 * 7647 * Return value: 7648 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7649 **/ 7650 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 7651 { 7652 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7653 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7654 7655 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 7656 ipr_cmd->job_step = ipr_set_supported_devs; 7657 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 7658 struct ipr_resource_entry, queue); 7659 return IPR_RC_JOB_CONTINUE; 7660 } 7661 7662 return ipr_reset_cmd_failed(ipr_cmd); 7663 } 7664 7665 /** 7666 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 7667 * @ipr_cmd: ipr command struct 7668 * 7669 * This function send a Page 28 mode sense to the IOA to 7670 * retrieve SCSI bus attributes. 7671 * 7672 * Return value: 7673 * IPR_RC_JOB_RETURN 7674 **/ 7675 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 7676 { 7677 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7678 7679 ENTER; 7680 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 7681 0x28, ioa_cfg->vpd_cbs_dma + 7682 offsetof(struct ipr_misc_cbs, mode_pages), 7683 sizeof(struct ipr_mode_pages)); 7684 7685 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 7686 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 7687 7688 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7689 7690 LEAVE; 7691 return IPR_RC_JOB_RETURN; 7692 } 7693 7694 /** 7695 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 7696 * @ipr_cmd: ipr command struct 7697 * 7698 * This function enables dual IOA RAID support if possible. 7699 * 7700 * Return value: 7701 * IPR_RC_JOB_RETURN 7702 **/ 7703 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 7704 { 7705 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7706 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 7707 struct ipr_mode_page24 *mode_page; 7708 int length; 7709 7710 ENTER; 7711 mode_page = ipr_get_mode_page(mode_pages, 0x24, 7712 sizeof(struct ipr_mode_page24)); 7713 7714 if (mode_page) 7715 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 7716 7717 length = mode_pages->hdr.length + 1; 7718 mode_pages->hdr.length = 0; 7719 7720 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 7721 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 7722 length); 7723 7724 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 7725 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7726 7727 LEAVE; 7728 return IPR_RC_JOB_RETURN; 7729 } 7730 7731 /** 7732 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 7733 * @ipr_cmd: ipr command struct 7734 * 7735 * This function handles the failure of a Mode Sense to the IOAFP. 7736 * Some adapters do not handle all mode pages. 7737 * 7738 * Return value: 7739 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7740 **/ 7741 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 7742 { 7743 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7744 7745 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 7746 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 7747 return IPR_RC_JOB_CONTINUE; 7748 } 7749 7750 return ipr_reset_cmd_failed(ipr_cmd); 7751 } 7752 7753 /** 7754 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 7755 * @ipr_cmd: ipr command struct 7756 * 7757 * This function send a mode sense to the IOA to retrieve 7758 * the IOA Advanced Function Control mode page. 7759 * 7760 * Return value: 7761 * IPR_RC_JOB_RETURN 7762 **/ 7763 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 7764 { 7765 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7766 7767 ENTER; 7768 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 7769 0x24, ioa_cfg->vpd_cbs_dma + 7770 offsetof(struct ipr_misc_cbs, mode_pages), 7771 sizeof(struct ipr_mode_pages)); 7772 7773 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 7774 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 7775 7776 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7777 7778 LEAVE; 7779 return IPR_RC_JOB_RETURN; 7780 } 7781 7782 /** 7783 * ipr_init_res_table - Initialize the resource table 7784 * @ipr_cmd: ipr command struct 7785 * 7786 * This function looks through the existing resource table, comparing 7787 * it with the config table. This function will take care of old/new 7788 * devices and schedule adding/removing them from the mid-layer 7789 * as appropriate. 7790 * 7791 * Return value: 7792 * IPR_RC_JOB_CONTINUE 7793 **/ 7794 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 7795 { 7796 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7797 struct ipr_resource_entry *res, *temp; 7798 struct ipr_config_table_entry_wrapper cfgtew; 7799 int entries, found, flag, i; 7800 LIST_HEAD(old_res); 7801 7802 ENTER; 7803 if (ioa_cfg->sis64) 7804 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 7805 else 7806 flag = ioa_cfg->u.cfg_table->hdr.flags; 7807 7808 if (flag & IPR_UCODE_DOWNLOAD_REQ) 7809 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 7810 7811 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 7812 list_move_tail(&res->queue, &old_res); 7813 7814 if (ioa_cfg->sis64) 7815 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); 7816 else 7817 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 7818 7819 for (i = 0; i < entries; i++) { 7820 if (ioa_cfg->sis64) 7821 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 7822 else 7823 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 7824 found = 0; 7825 7826 list_for_each_entry_safe(res, temp, &old_res, queue) { 7827 if (ipr_is_same_device(res, &cfgtew)) { 7828 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 7829 found = 1; 7830 break; 7831 } 7832 } 7833 7834 if (!found) { 7835 if (list_empty(&ioa_cfg->free_res_q)) { 7836 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 7837 break; 7838 } 7839 7840 found = 1; 7841 res = list_entry(ioa_cfg->free_res_q.next, 7842 struct ipr_resource_entry, queue); 7843 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 7844 ipr_init_res_entry(res, &cfgtew); 7845 res->add_to_ml = 1; 7846 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) 7847 res->sdev->allow_restart = 1; 7848 7849 if (found) 7850 ipr_update_res_entry(res, &cfgtew); 7851 } 7852 7853 list_for_each_entry_safe(res, temp, &old_res, queue) { 7854 if (res->sdev) { 7855 res->del_from_ml = 1; 7856 res->res_handle = IPR_INVALID_RES_HANDLE; 7857 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 7858 } 7859 } 7860 7861 list_for_each_entry_safe(res, temp, &old_res, queue) { 7862 ipr_clear_res_target(res); 7863 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 7864 } 7865 7866 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7867 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 7868 else 7869 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 7870 7871 LEAVE; 7872 return IPR_RC_JOB_CONTINUE; 7873 } 7874 7875 /** 7876 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 7877 * @ipr_cmd: ipr command struct 7878 * 7879 * This function sends a Query IOA Configuration command 7880 * to the adapter to retrieve the IOA configuration table. 7881 * 7882 * Return value: 7883 * IPR_RC_JOB_RETURN 7884 **/ 7885 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 7886 { 7887 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7888 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7889 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 7890 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 7891 7892 ENTER; 7893 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 7894 ioa_cfg->dual_raid = 1; 7895 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 7896 ucode_vpd->major_release, ucode_vpd->card_type, 7897 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 7898 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7899 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7900 7901 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 7902 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; 7903 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 7904 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 7905 7906 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 7907 IPR_IOADL_FLAGS_READ_LAST); 7908 7909 ipr_cmd->job_step = ipr_init_res_table; 7910 7911 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7912 7913 LEAVE; 7914 return IPR_RC_JOB_RETURN; 7915 } 7916 7917 static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd) 7918 { 7919 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7920 7921 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) 7922 return IPR_RC_JOB_CONTINUE; 7923 7924 return ipr_reset_cmd_failed(ipr_cmd); 7925 } 7926 7927 static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd, 7928 __be32 res_handle, u8 sa_code) 7929 { 7930 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7931 7932 ioarcb->res_handle = res_handle; 7933 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION; 7934 ioarcb->cmd_pkt.cdb[1] = sa_code; 7935 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7936 } 7937 7938 /** 7939 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service 7940 * action 7941 * 7942 * Return value: 7943 * none 7944 **/ 7945 static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd) 7946 { 7947 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7948 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7949 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; 7950 7951 ENTER; 7952 7953 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 7954 7955 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) { 7956 ipr_build_ioa_service_action(ipr_cmd, 7957 cpu_to_be32(IPR_IOA_RES_HANDLE), 7958 IPR_IOA_SA_CHANGE_CACHE_PARAMS); 7959 7960 ioarcb->cmd_pkt.cdb[2] = 0x40; 7961 7962 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed; 7963 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7964 IPR_SET_SUP_DEVICE_TIMEOUT); 7965 7966 LEAVE; 7967 return IPR_RC_JOB_RETURN; 7968 } 7969 7970 LEAVE; 7971 return IPR_RC_JOB_CONTINUE; 7972 } 7973 7974 /** 7975 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 7976 * @ipr_cmd: ipr command struct 7977 * 7978 * This utility function sends an inquiry to the adapter. 7979 * 7980 * Return value: 7981 * none 7982 **/ 7983 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 7984 dma_addr_t dma_addr, u8 xfer_len) 7985 { 7986 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7987 7988 ENTER; 7989 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7990 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7991 7992 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 7993 ioarcb->cmd_pkt.cdb[1] = flags; 7994 ioarcb->cmd_pkt.cdb[2] = page; 7995 ioarcb->cmd_pkt.cdb[4] = xfer_len; 7996 7997 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 7998 7999 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 8000 LEAVE; 8001 } 8002 8003 /** 8004 * ipr_inquiry_page_supported - Is the given inquiry page supported 8005 * @page0: inquiry page 0 buffer 8006 * @page: page code. 8007 * 8008 * This function determines if the specified inquiry page is supported. 8009 * 8010 * Return value: 8011 * 1 if page is supported / 0 if not 8012 **/ 8013 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 8014 { 8015 int i; 8016 8017 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 8018 if (page0->page[i] == page) 8019 return 1; 8020 8021 return 0; 8022 } 8023 8024 /** 8025 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter. 8026 * @ipr_cmd: ipr command struct 8027 * 8028 * This function sends a Page 0xC4 inquiry to the adapter 8029 * to retrieve software VPD information. 8030 * 8031 * Return value: 8032 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8033 **/ 8034 static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd) 8035 { 8036 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8037 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 8038 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; 8039 8040 ENTER; 8041 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters; 8042 memset(pageC4, 0, sizeof(*pageC4)); 8043 8044 if (ipr_inquiry_page_supported(page0, 0xC4)) { 8045 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4, 8046 (ioa_cfg->vpd_cbs_dma 8047 + offsetof(struct ipr_misc_cbs, 8048 pageC4_data)), 8049 sizeof(struct ipr_inquiry_pageC4)); 8050 return IPR_RC_JOB_RETURN; 8051 } 8052 8053 LEAVE; 8054 return IPR_RC_JOB_CONTINUE; 8055 } 8056 8057 /** 8058 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 8059 * @ipr_cmd: ipr command struct 8060 * 8061 * This function sends a Page 0xD0 inquiry to the adapter 8062 * to retrieve adapter capabilities. 8063 * 8064 * Return value: 8065 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8066 **/ 8067 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 8068 { 8069 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8070 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 8071 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 8072 8073 ENTER; 8074 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry; 8075 memset(cap, 0, sizeof(*cap)); 8076 8077 if (ipr_inquiry_page_supported(page0, 0xD0)) { 8078 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 8079 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 8080 sizeof(struct ipr_inquiry_cap)); 8081 return IPR_RC_JOB_RETURN; 8082 } 8083 8084 LEAVE; 8085 return IPR_RC_JOB_CONTINUE; 8086 } 8087 8088 /** 8089 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 8090 * @ipr_cmd: ipr command struct 8091 * 8092 * This function sends a Page 3 inquiry to the adapter 8093 * to retrieve software VPD information. 8094 * 8095 * Return value: 8096 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8097 **/ 8098 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 8099 { 8100 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8101 8102 ENTER; 8103 8104 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 8105 8106 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 8107 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 8108 sizeof(struct ipr_inquiry_page3)); 8109 8110 LEAVE; 8111 return IPR_RC_JOB_RETURN; 8112 } 8113 8114 /** 8115 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 8116 * @ipr_cmd: ipr command struct 8117 * 8118 * This function sends a Page 0 inquiry to the adapter 8119 * to retrieve supported inquiry pages. 8120 * 8121 * Return value: 8122 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8123 **/ 8124 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 8125 { 8126 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8127 char type[5]; 8128 8129 ENTER; 8130 8131 /* Grab the type out of the VPD and store it away */ 8132 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 8133 type[4] = '\0'; 8134 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 8135 8136 if (ipr_invalid_adapter(ioa_cfg)) { 8137 dev_err(&ioa_cfg->pdev->dev, 8138 "Adapter not supported in this hardware configuration.\n"); 8139 8140 if (!ipr_testmode) { 8141 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 8142 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8143 list_add_tail(&ipr_cmd->queue, 8144 &ioa_cfg->hrrq->hrrq_free_q); 8145 return IPR_RC_JOB_RETURN; 8146 } 8147 } 8148 8149 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 8150 8151 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 8152 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 8153 sizeof(struct ipr_inquiry_page0)); 8154 8155 LEAVE; 8156 return IPR_RC_JOB_RETURN; 8157 } 8158 8159 /** 8160 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 8161 * @ipr_cmd: ipr command struct 8162 * 8163 * This function sends a standard inquiry to the adapter. 8164 * 8165 * Return value: 8166 * IPR_RC_JOB_RETURN 8167 **/ 8168 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 8169 { 8170 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8171 8172 ENTER; 8173 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 8174 8175 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 8176 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 8177 sizeof(struct ipr_ioa_vpd)); 8178 8179 LEAVE; 8180 return IPR_RC_JOB_RETURN; 8181 } 8182 8183 /** 8184 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 8185 * @ipr_cmd: ipr command struct 8186 * 8187 * This function send an Identify Host Request Response Queue 8188 * command to establish the HRRQ with the adapter. 8189 * 8190 * Return value: 8191 * IPR_RC_JOB_RETURN 8192 **/ 8193 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 8194 { 8195 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8196 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 8197 struct ipr_hrr_queue *hrrq; 8198 8199 ENTER; 8200 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 8201 if (ioa_cfg->identify_hrrq_index == 0) 8202 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 8203 8204 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) { 8205 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index]; 8206 8207 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 8208 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 8209 8210 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 8211 if (ioa_cfg->sis64) 8212 ioarcb->cmd_pkt.cdb[1] = 0x1; 8213 8214 if (ioa_cfg->nvectors == 1) 8215 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE; 8216 else 8217 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE; 8218 8219 ioarcb->cmd_pkt.cdb[2] = 8220 ((u64) hrrq->host_rrq_dma >> 24) & 0xff; 8221 ioarcb->cmd_pkt.cdb[3] = 8222 ((u64) hrrq->host_rrq_dma >> 16) & 0xff; 8223 ioarcb->cmd_pkt.cdb[4] = 8224 ((u64) hrrq->host_rrq_dma >> 8) & 0xff; 8225 ioarcb->cmd_pkt.cdb[5] = 8226 ((u64) hrrq->host_rrq_dma) & 0xff; 8227 ioarcb->cmd_pkt.cdb[7] = 8228 ((sizeof(u32) * hrrq->size) >> 8) & 0xff; 8229 ioarcb->cmd_pkt.cdb[8] = 8230 (sizeof(u32) * hrrq->size) & 0xff; 8231 8232 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) 8233 ioarcb->cmd_pkt.cdb[9] = 8234 ioa_cfg->identify_hrrq_index; 8235 8236 if (ioa_cfg->sis64) { 8237 ioarcb->cmd_pkt.cdb[10] = 8238 ((u64) hrrq->host_rrq_dma >> 56) & 0xff; 8239 ioarcb->cmd_pkt.cdb[11] = 8240 ((u64) hrrq->host_rrq_dma >> 48) & 0xff; 8241 ioarcb->cmd_pkt.cdb[12] = 8242 ((u64) hrrq->host_rrq_dma >> 40) & 0xff; 8243 ioarcb->cmd_pkt.cdb[13] = 8244 ((u64) hrrq->host_rrq_dma >> 32) & 0xff; 8245 } 8246 8247 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) 8248 ioarcb->cmd_pkt.cdb[14] = 8249 ioa_cfg->identify_hrrq_index; 8250 8251 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 8252 IPR_INTERNAL_TIMEOUT); 8253 8254 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) 8255 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 8256 8257 LEAVE; 8258 return IPR_RC_JOB_RETURN; 8259 } 8260 8261 LEAVE; 8262 return IPR_RC_JOB_CONTINUE; 8263 } 8264 8265 /** 8266 * ipr_reset_timer_done - Adapter reset timer function 8267 * @ipr_cmd: ipr command struct 8268 * 8269 * Description: This function is used in adapter reset processing 8270 * for timing events. If the reset_cmd pointer in the IOA 8271 * config struct is not this adapter's we are doing nested 8272 * resets and fail_all_ops will take care of freeing the 8273 * command block. 8274 * 8275 * Return value: 8276 * none 8277 **/ 8278 static void ipr_reset_timer_done(struct timer_list *t) 8279 { 8280 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); 8281 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8282 unsigned long lock_flags = 0; 8283 8284 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8285 8286 if (ioa_cfg->reset_cmd == ipr_cmd) { 8287 list_del(&ipr_cmd->queue); 8288 ipr_cmd->done(ipr_cmd); 8289 } 8290 8291 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8292 } 8293 8294 /** 8295 * ipr_reset_start_timer - Start a timer for adapter reset job 8296 * @ipr_cmd: ipr command struct 8297 * @timeout: timeout value 8298 * 8299 * Description: This function is used in adapter reset processing 8300 * for timing events. If the reset_cmd pointer in the IOA 8301 * config struct is not this adapter's we are doing nested 8302 * resets and fail_all_ops will take care of freeing the 8303 * command block. 8304 * 8305 * Return value: 8306 * none 8307 **/ 8308 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 8309 unsigned long timeout) 8310 { 8311 8312 ENTER; 8313 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 8314 ipr_cmd->done = ipr_reset_ioa_job; 8315 8316 ipr_cmd->timer.expires = jiffies + timeout; 8317 ipr_cmd->timer.function = ipr_reset_timer_done; 8318 add_timer(&ipr_cmd->timer); 8319 } 8320 8321 /** 8322 * ipr_init_ioa_mem - Initialize ioa_cfg control block 8323 * @ioa_cfg: ioa cfg struct 8324 * 8325 * Return value: 8326 * nothing 8327 **/ 8328 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 8329 { 8330 struct ipr_hrr_queue *hrrq; 8331 8332 for_each_hrrq(hrrq, ioa_cfg) { 8333 spin_lock(&hrrq->_lock); 8334 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size); 8335 8336 /* Initialize Host RRQ pointers */ 8337 hrrq->hrrq_start = hrrq->host_rrq; 8338 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1]; 8339 hrrq->hrrq_curr = hrrq->hrrq_start; 8340 hrrq->toggle_bit = 1; 8341 spin_unlock(&hrrq->_lock); 8342 } 8343 wmb(); 8344 8345 ioa_cfg->identify_hrrq_index = 0; 8346 if (ioa_cfg->hrrq_num == 1) 8347 atomic_set(&ioa_cfg->hrrq_index, 0); 8348 else 8349 atomic_set(&ioa_cfg->hrrq_index, 1); 8350 8351 /* Zero out config table */ 8352 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 8353 } 8354 8355 /** 8356 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 8357 * @ipr_cmd: ipr command struct 8358 * 8359 * Return value: 8360 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8361 **/ 8362 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 8363 { 8364 unsigned long stage, stage_time; 8365 u32 feedback; 8366 volatile u32 int_reg; 8367 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8368 u64 maskval = 0; 8369 8370 feedback = readl(ioa_cfg->regs.init_feedback_reg); 8371 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 8372 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 8373 8374 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 8375 8376 /* sanity check the stage_time value */ 8377 if (stage_time == 0) 8378 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; 8379 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 8380 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 8381 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 8382 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 8383 8384 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 8385 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 8386 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8387 stage_time = ioa_cfg->transop_timeout; 8388 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 8389 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 8390 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 8391 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 8392 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 8393 maskval = IPR_PCII_IPL_STAGE_CHANGE; 8394 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 8395 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 8396 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8397 return IPR_RC_JOB_CONTINUE; 8398 } 8399 } 8400 8401 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 8402 ipr_cmd->timer.function = ipr_oper_timeout; 8403 ipr_cmd->done = ipr_reset_ioa_job; 8404 add_timer(&ipr_cmd->timer); 8405 8406 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 8407 8408 return IPR_RC_JOB_RETURN; 8409 } 8410 8411 /** 8412 * ipr_reset_enable_ioa - Enable the IOA following a reset. 8413 * @ipr_cmd: ipr command struct 8414 * 8415 * This function reinitializes some control blocks and 8416 * enables destructive diagnostics on the adapter. 8417 * 8418 * Return value: 8419 * IPR_RC_JOB_RETURN 8420 **/ 8421 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 8422 { 8423 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8424 volatile u32 int_reg; 8425 volatile u64 maskval; 8426 int i; 8427 8428 ENTER; 8429 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 8430 ipr_init_ioa_mem(ioa_cfg); 8431 8432 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 8433 spin_lock(&ioa_cfg->hrrq[i]._lock); 8434 ioa_cfg->hrrq[i].allow_interrupts = 1; 8435 spin_unlock(&ioa_cfg->hrrq[i]._lock); 8436 } 8437 if (ioa_cfg->sis64) { 8438 /* Set the adapter to the correct endian mode. */ 8439 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 8440 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 8441 } 8442 8443 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 8444 8445 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 8446 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 8447 ioa_cfg->regs.clr_interrupt_mask_reg32); 8448 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8449 return IPR_RC_JOB_CONTINUE; 8450 } 8451 8452 /* Enable destructive diagnostics on IOA */ 8453 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 8454 8455 if (ioa_cfg->sis64) { 8456 maskval = IPR_PCII_IPL_STAGE_CHANGE; 8457 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; 8458 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); 8459 } else 8460 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 8461 8462 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8463 8464 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 8465 8466 if (ioa_cfg->sis64) { 8467 ipr_cmd->job_step = ipr_reset_next_stage; 8468 return IPR_RC_JOB_CONTINUE; 8469 } 8470 8471 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 8472 ipr_cmd->timer.function = ipr_oper_timeout; 8473 ipr_cmd->done = ipr_reset_ioa_job; 8474 add_timer(&ipr_cmd->timer); 8475 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 8476 8477 LEAVE; 8478 return IPR_RC_JOB_RETURN; 8479 } 8480 8481 /** 8482 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 8483 * @ipr_cmd: ipr command struct 8484 * 8485 * This function is invoked when an adapter dump has run out 8486 * of processing time. 8487 * 8488 * Return value: 8489 * IPR_RC_JOB_CONTINUE 8490 **/ 8491 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 8492 { 8493 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8494 8495 if (ioa_cfg->sdt_state == GET_DUMP) 8496 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8497 else if (ioa_cfg->sdt_state == READ_DUMP) 8498 ioa_cfg->sdt_state = ABORT_DUMP; 8499 8500 ioa_cfg->dump_timeout = 1; 8501 ipr_cmd->job_step = ipr_reset_alert; 8502 8503 return IPR_RC_JOB_CONTINUE; 8504 } 8505 8506 /** 8507 * ipr_unit_check_no_data - Log a unit check/no data error log 8508 * @ioa_cfg: ioa config struct 8509 * 8510 * Logs an error indicating the adapter unit checked, but for some 8511 * reason, we were unable to fetch the unit check buffer. 8512 * 8513 * Return value: 8514 * nothing 8515 **/ 8516 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 8517 { 8518 ioa_cfg->errors_logged++; 8519 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 8520 } 8521 8522 /** 8523 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 8524 * @ioa_cfg: ioa config struct 8525 * 8526 * Fetches the unit check buffer from the adapter by clocking the data 8527 * through the mailbox register. 8528 * 8529 * Return value: 8530 * nothing 8531 **/ 8532 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 8533 { 8534 unsigned long mailbox; 8535 struct ipr_hostrcb *hostrcb; 8536 struct ipr_uc_sdt sdt; 8537 int rc, length; 8538 u32 ioasc; 8539 8540 mailbox = readl(ioa_cfg->ioa_mailbox); 8541 8542 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 8543 ipr_unit_check_no_data(ioa_cfg); 8544 return; 8545 } 8546 8547 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 8548 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 8549 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 8550 8551 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 8552 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 8553 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 8554 ipr_unit_check_no_data(ioa_cfg); 8555 return; 8556 } 8557 8558 /* Find length of the first sdt entry (UC buffer) */ 8559 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 8560 length = be32_to_cpu(sdt.entry[0].end_token); 8561 else 8562 length = (be32_to_cpu(sdt.entry[0].end_token) - 8563 be32_to_cpu(sdt.entry[0].start_token)) & 8564 IPR_FMT2_MBX_ADDR_MASK; 8565 8566 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 8567 struct ipr_hostrcb, queue); 8568 list_del_init(&hostrcb->queue); 8569 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 8570 8571 rc = ipr_get_ldump_data_section(ioa_cfg, 8572 be32_to_cpu(sdt.entry[0].start_token), 8573 (__be32 *)&hostrcb->hcam, 8574 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 8575 8576 if (!rc) { 8577 ipr_handle_log_data(ioa_cfg, hostrcb); 8578 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 8579 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 8580 ioa_cfg->sdt_state == GET_DUMP) 8581 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8582 } else 8583 ipr_unit_check_no_data(ioa_cfg); 8584 8585 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 8586 } 8587 8588 /** 8589 * ipr_reset_get_unit_check_job - Call to get the unit check buffer. 8590 * @ipr_cmd: ipr command struct 8591 * 8592 * Description: This function will call to get the unit check buffer. 8593 * 8594 * Return value: 8595 * IPR_RC_JOB_RETURN 8596 **/ 8597 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) 8598 { 8599 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8600 8601 ENTER; 8602 ioa_cfg->ioa_unit_checked = 0; 8603 ipr_get_unit_check_buffer(ioa_cfg); 8604 ipr_cmd->job_step = ipr_reset_alert; 8605 ipr_reset_start_timer(ipr_cmd, 0); 8606 8607 LEAVE; 8608 return IPR_RC_JOB_RETURN; 8609 } 8610 8611 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd) 8612 { 8613 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8614 8615 ENTER; 8616 8617 if (ioa_cfg->sdt_state != GET_DUMP) 8618 return IPR_RC_JOB_RETURN; 8619 8620 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left || 8621 (readl(ioa_cfg->regs.sense_interrupt_reg) & 8622 IPR_PCII_MAILBOX_STABLE)) { 8623 8624 if (!ipr_cmd->u.time_left) 8625 dev_err(&ioa_cfg->pdev->dev, 8626 "Timed out waiting for Mailbox register.\n"); 8627 8628 ioa_cfg->sdt_state = READ_DUMP; 8629 ioa_cfg->dump_timeout = 0; 8630 if (ioa_cfg->sis64) 8631 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT); 8632 else 8633 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT); 8634 ipr_cmd->job_step = ipr_reset_wait_for_dump; 8635 schedule_work(&ioa_cfg->work_q); 8636 8637 } else { 8638 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 8639 ipr_reset_start_timer(ipr_cmd, 8640 IPR_CHECK_FOR_RESET_TIMEOUT); 8641 } 8642 8643 LEAVE; 8644 return IPR_RC_JOB_RETURN; 8645 } 8646 8647 /** 8648 * ipr_reset_restore_cfg_space - Restore PCI config space. 8649 * @ipr_cmd: ipr command struct 8650 * 8651 * Description: This function restores the saved PCI config space of 8652 * the adapter, fails all outstanding ops back to the callers, and 8653 * fetches the dump/unit check if applicable to this reset. 8654 * 8655 * Return value: 8656 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8657 **/ 8658 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 8659 { 8660 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8661 u32 int_reg; 8662 8663 ENTER; 8664 ioa_cfg->pdev->state_saved = true; 8665 pci_restore_state(ioa_cfg->pdev); 8666 8667 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 8668 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 8669 return IPR_RC_JOB_CONTINUE; 8670 } 8671 8672 ipr_fail_all_ops(ioa_cfg); 8673 8674 if (ioa_cfg->sis64) { 8675 /* Set the adapter to the correct endian mode. */ 8676 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 8677 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 8678 } 8679 8680 if (ioa_cfg->ioa_unit_checked) { 8681 if (ioa_cfg->sis64) { 8682 ipr_cmd->job_step = ipr_reset_get_unit_check_job; 8683 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); 8684 return IPR_RC_JOB_RETURN; 8685 } else { 8686 ioa_cfg->ioa_unit_checked = 0; 8687 ipr_get_unit_check_buffer(ioa_cfg); 8688 ipr_cmd->job_step = ipr_reset_alert; 8689 ipr_reset_start_timer(ipr_cmd, 0); 8690 return IPR_RC_JOB_RETURN; 8691 } 8692 } 8693 8694 if (ioa_cfg->in_ioa_bringdown) { 8695 ipr_cmd->job_step = ipr_ioa_bringdown_done; 8696 } else if (ioa_cfg->sdt_state == GET_DUMP) { 8697 ipr_cmd->job_step = ipr_dump_mailbox_wait; 8698 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX; 8699 } else { 8700 ipr_cmd->job_step = ipr_reset_enable_ioa; 8701 } 8702 8703 LEAVE; 8704 return IPR_RC_JOB_CONTINUE; 8705 } 8706 8707 /** 8708 * ipr_reset_bist_done - BIST has completed on the adapter. 8709 * @ipr_cmd: ipr command struct 8710 * 8711 * Description: Unblock config space and resume the reset process. 8712 * 8713 * Return value: 8714 * IPR_RC_JOB_CONTINUE 8715 **/ 8716 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 8717 { 8718 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8719 8720 ENTER; 8721 if (ioa_cfg->cfg_locked) 8722 pci_cfg_access_unlock(ioa_cfg->pdev); 8723 ioa_cfg->cfg_locked = 0; 8724 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 8725 LEAVE; 8726 return IPR_RC_JOB_CONTINUE; 8727 } 8728 8729 /** 8730 * ipr_reset_start_bist - Run BIST on the adapter. 8731 * @ipr_cmd: ipr command struct 8732 * 8733 * Description: This function runs BIST on the adapter, then delays 2 seconds. 8734 * 8735 * Return value: 8736 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8737 **/ 8738 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 8739 { 8740 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8741 int rc = PCIBIOS_SUCCESSFUL; 8742 8743 ENTER; 8744 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) 8745 writel(IPR_UPROCI_SIS64_START_BIST, 8746 ioa_cfg->regs.set_uproc_interrupt_reg32); 8747 else 8748 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 8749 8750 if (rc == PCIBIOS_SUCCESSFUL) { 8751 ipr_cmd->job_step = ipr_reset_bist_done; 8752 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 8753 rc = IPR_RC_JOB_RETURN; 8754 } else { 8755 if (ioa_cfg->cfg_locked) 8756 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev); 8757 ioa_cfg->cfg_locked = 0; 8758 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 8759 rc = IPR_RC_JOB_CONTINUE; 8760 } 8761 8762 LEAVE; 8763 return rc; 8764 } 8765 8766 /** 8767 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 8768 * @ipr_cmd: ipr command struct 8769 * 8770 * Description: This clears PCI reset to the adapter and delays two seconds. 8771 * 8772 * Return value: 8773 * IPR_RC_JOB_RETURN 8774 **/ 8775 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 8776 { 8777 ENTER; 8778 ipr_cmd->job_step = ipr_reset_bist_done; 8779 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 8780 LEAVE; 8781 return IPR_RC_JOB_RETURN; 8782 } 8783 8784 /** 8785 * ipr_reset_reset_work - Pulse a PCIe fundamental reset 8786 * @work: work struct 8787 * 8788 * Description: This pulses warm reset to a slot. 8789 * 8790 **/ 8791 static void ipr_reset_reset_work(struct work_struct *work) 8792 { 8793 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work); 8794 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8795 struct pci_dev *pdev = ioa_cfg->pdev; 8796 unsigned long lock_flags = 0; 8797 8798 ENTER; 8799 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 8800 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT)); 8801 pci_set_pcie_reset_state(pdev, pcie_deassert_reset); 8802 8803 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8804 if (ioa_cfg->reset_cmd == ipr_cmd) 8805 ipr_reset_ioa_job(ipr_cmd); 8806 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8807 LEAVE; 8808 } 8809 8810 /** 8811 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 8812 * @ipr_cmd: ipr command struct 8813 * 8814 * Description: This asserts PCI reset to the adapter. 8815 * 8816 * Return value: 8817 * IPR_RC_JOB_RETURN 8818 **/ 8819 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 8820 { 8821 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8822 8823 ENTER; 8824 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work); 8825 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work); 8826 ipr_cmd->job_step = ipr_reset_slot_reset_done; 8827 LEAVE; 8828 return IPR_RC_JOB_RETURN; 8829 } 8830 8831 /** 8832 * ipr_reset_block_config_access_wait - Wait for permission to block config access 8833 * @ipr_cmd: ipr command struct 8834 * 8835 * Description: This attempts to block config access to the IOA. 8836 * 8837 * Return value: 8838 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8839 **/ 8840 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd) 8841 { 8842 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8843 int rc = IPR_RC_JOB_CONTINUE; 8844 8845 if (pci_cfg_access_trylock(ioa_cfg->pdev)) { 8846 ioa_cfg->cfg_locked = 1; 8847 ipr_cmd->job_step = ioa_cfg->reset; 8848 } else { 8849 if (ipr_cmd->u.time_left) { 8850 rc = IPR_RC_JOB_RETURN; 8851 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 8852 ipr_reset_start_timer(ipr_cmd, 8853 IPR_CHECK_FOR_RESET_TIMEOUT); 8854 } else { 8855 ipr_cmd->job_step = ioa_cfg->reset; 8856 dev_err(&ioa_cfg->pdev->dev, 8857 "Timed out waiting to lock config access. Resetting anyway.\n"); 8858 } 8859 } 8860 8861 return rc; 8862 } 8863 8864 /** 8865 * ipr_reset_block_config_access - Block config access to the IOA 8866 * @ipr_cmd: ipr command struct 8867 * 8868 * Description: This attempts to block config access to the IOA 8869 * 8870 * Return value: 8871 * IPR_RC_JOB_CONTINUE 8872 **/ 8873 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd) 8874 { 8875 ipr_cmd->ioa_cfg->cfg_locked = 0; 8876 ipr_cmd->job_step = ipr_reset_block_config_access_wait; 8877 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 8878 return IPR_RC_JOB_CONTINUE; 8879 } 8880 8881 /** 8882 * ipr_reset_allowed - Query whether or not IOA can be reset 8883 * @ioa_cfg: ioa config struct 8884 * 8885 * Return value: 8886 * 0 if reset not allowed / non-zero if reset is allowed 8887 **/ 8888 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 8889 { 8890 volatile u32 temp_reg; 8891 8892 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8893 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 8894 } 8895 8896 /** 8897 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 8898 * @ipr_cmd: ipr command struct 8899 * 8900 * Description: This function waits for adapter permission to run BIST, 8901 * then runs BIST. If the adapter does not give permission after a 8902 * reasonable time, we will reset the adapter anyway. The impact of 8903 * resetting the adapter without warning the adapter is the risk of 8904 * losing the persistent error log on the adapter. If the adapter is 8905 * reset while it is writing to the flash on the adapter, the flash 8906 * segment will have bad ECC and be zeroed. 8907 * 8908 * Return value: 8909 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8910 **/ 8911 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 8912 { 8913 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8914 int rc = IPR_RC_JOB_RETURN; 8915 8916 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 8917 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 8918 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 8919 } else { 8920 ipr_cmd->job_step = ipr_reset_block_config_access; 8921 rc = IPR_RC_JOB_CONTINUE; 8922 } 8923 8924 return rc; 8925 } 8926 8927 /** 8928 * ipr_reset_alert - Alert the adapter of a pending reset 8929 * @ipr_cmd: ipr command struct 8930 * 8931 * Description: This function alerts the adapter that it will be reset. 8932 * If memory space is not currently enabled, proceed directly 8933 * to running BIST on the adapter. The timer must always be started 8934 * so we guarantee we do not run BIST from ipr_isr. 8935 * 8936 * Return value: 8937 * IPR_RC_JOB_RETURN 8938 **/ 8939 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 8940 { 8941 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8942 u16 cmd_reg; 8943 int rc; 8944 8945 ENTER; 8946 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 8947 8948 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 8949 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 8950 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 8951 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 8952 } else { 8953 ipr_cmd->job_step = ipr_reset_block_config_access; 8954 } 8955 8956 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 8957 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 8958 8959 LEAVE; 8960 return IPR_RC_JOB_RETURN; 8961 } 8962 8963 /** 8964 * ipr_reset_quiesce_done - Complete IOA disconnect 8965 * @ipr_cmd: ipr command struct 8966 * 8967 * Description: Freeze the adapter to complete quiesce processing 8968 * 8969 * Return value: 8970 * IPR_RC_JOB_CONTINUE 8971 **/ 8972 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd) 8973 { 8974 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8975 8976 ENTER; 8977 ipr_cmd->job_step = ipr_ioa_bringdown_done; 8978 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8979 LEAVE; 8980 return IPR_RC_JOB_CONTINUE; 8981 } 8982 8983 /** 8984 * ipr_reset_cancel_hcam_done - Check for outstanding commands 8985 * @ipr_cmd: ipr command struct 8986 * 8987 * Description: Ensure nothing is outstanding to the IOA and 8988 * proceed with IOA disconnect. Otherwise reset the IOA. 8989 * 8990 * Return value: 8991 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE 8992 **/ 8993 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd) 8994 { 8995 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8996 struct ipr_cmnd *loop_cmd; 8997 struct ipr_hrr_queue *hrrq; 8998 int rc = IPR_RC_JOB_CONTINUE; 8999 int count = 0; 9000 9001 ENTER; 9002 ipr_cmd->job_step = ipr_reset_quiesce_done; 9003 9004 for_each_hrrq(hrrq, ioa_cfg) { 9005 spin_lock(&hrrq->_lock); 9006 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) { 9007 count++; 9008 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 9009 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 9010 rc = IPR_RC_JOB_RETURN; 9011 break; 9012 } 9013 spin_unlock(&hrrq->_lock); 9014 9015 if (count) 9016 break; 9017 } 9018 9019 LEAVE; 9020 return rc; 9021 } 9022 9023 /** 9024 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs 9025 * @ipr_cmd: ipr command struct 9026 * 9027 * Description: Cancel any oustanding HCAMs to the IOA. 9028 * 9029 * Return value: 9030 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 9031 **/ 9032 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd) 9033 { 9034 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9035 int rc = IPR_RC_JOB_CONTINUE; 9036 struct ipr_cmd_pkt *cmd_pkt; 9037 struct ipr_cmnd *hcam_cmd; 9038 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ]; 9039 9040 ENTER; 9041 ipr_cmd->job_step = ipr_reset_cancel_hcam_done; 9042 9043 if (!hrrq->ioa_is_dead) { 9044 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) { 9045 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) { 9046 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC) 9047 continue; 9048 9049 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9050 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 9051 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 9052 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 9053 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST; 9054 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB; 9055 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff; 9056 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff; 9057 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff; 9058 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff; 9059 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff; 9060 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff; 9061 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff; 9062 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff; 9063 9064 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 9065 IPR_CANCEL_TIMEOUT); 9066 9067 rc = IPR_RC_JOB_RETURN; 9068 ipr_cmd->job_step = ipr_reset_cancel_hcam; 9069 break; 9070 } 9071 } 9072 } else 9073 ipr_cmd->job_step = ipr_reset_alert; 9074 9075 LEAVE; 9076 return rc; 9077 } 9078 9079 /** 9080 * ipr_reset_ucode_download_done - Microcode download completion 9081 * @ipr_cmd: ipr command struct 9082 * 9083 * Description: This function unmaps the microcode download buffer. 9084 * 9085 * Return value: 9086 * IPR_RC_JOB_CONTINUE 9087 **/ 9088 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 9089 { 9090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9091 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 9092 9093 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist, 9094 sglist->num_sg, DMA_TO_DEVICE); 9095 9096 ipr_cmd->job_step = ipr_reset_alert; 9097 return IPR_RC_JOB_CONTINUE; 9098 } 9099 9100 /** 9101 * ipr_reset_ucode_download - Download microcode to the adapter 9102 * @ipr_cmd: ipr command struct 9103 * 9104 * Description: This function checks to see if it there is microcode 9105 * to download to the adapter. If there is, a download is performed. 9106 * 9107 * Return value: 9108 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 9109 **/ 9110 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 9111 { 9112 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9113 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 9114 9115 ENTER; 9116 ipr_cmd->job_step = ipr_reset_alert; 9117 9118 if (!sglist) 9119 return IPR_RC_JOB_CONTINUE; 9120 9121 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9122 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 9123 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 9124 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 9125 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 9126 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 9127 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 9128 9129 if (ioa_cfg->sis64) 9130 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 9131 else 9132 ipr_build_ucode_ioadl(ipr_cmd, sglist); 9133 ipr_cmd->job_step = ipr_reset_ucode_download_done; 9134 9135 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 9136 IPR_WRITE_BUFFER_TIMEOUT); 9137 9138 LEAVE; 9139 return IPR_RC_JOB_RETURN; 9140 } 9141 9142 /** 9143 * ipr_reset_shutdown_ioa - Shutdown the adapter 9144 * @ipr_cmd: ipr command struct 9145 * 9146 * Description: This function issues an adapter shutdown of the 9147 * specified type to the specified adapter as part of the 9148 * adapter reset job. 9149 * 9150 * Return value: 9151 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 9152 **/ 9153 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 9154 { 9155 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9156 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 9157 unsigned long timeout; 9158 int rc = IPR_RC_JOB_CONTINUE; 9159 9160 ENTER; 9161 if (shutdown_type == IPR_SHUTDOWN_QUIESCE) 9162 ipr_cmd->job_step = ipr_reset_cancel_hcam; 9163 else if (shutdown_type != IPR_SHUTDOWN_NONE && 9164 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { 9165 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9166 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 9167 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 9168 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 9169 9170 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 9171 timeout = IPR_SHUTDOWN_TIMEOUT; 9172 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 9173 timeout = IPR_INTERNAL_TIMEOUT; 9174 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 9175 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 9176 else 9177 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 9178 9179 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 9180 9181 rc = IPR_RC_JOB_RETURN; 9182 ipr_cmd->job_step = ipr_reset_ucode_download; 9183 } else 9184 ipr_cmd->job_step = ipr_reset_alert; 9185 9186 LEAVE; 9187 return rc; 9188 } 9189 9190 /** 9191 * ipr_reset_ioa_job - Adapter reset job 9192 * @ipr_cmd: ipr command struct 9193 * 9194 * Description: This function is the job router for the adapter reset job. 9195 * 9196 * Return value: 9197 * none 9198 **/ 9199 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 9200 { 9201 u32 rc, ioasc; 9202 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9203 9204 do { 9205 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 9206 9207 if (ioa_cfg->reset_cmd != ipr_cmd) { 9208 /* 9209 * We are doing nested adapter resets and this is 9210 * not the current reset job. 9211 */ 9212 list_add_tail(&ipr_cmd->queue, 9213 &ipr_cmd->hrrq->hrrq_free_q); 9214 return; 9215 } 9216 9217 if (IPR_IOASC_SENSE_KEY(ioasc)) { 9218 rc = ipr_cmd->job_step_failed(ipr_cmd); 9219 if (rc == IPR_RC_JOB_RETURN) 9220 return; 9221 } 9222 9223 ipr_reinit_ipr_cmnd(ipr_cmd); 9224 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 9225 rc = ipr_cmd->job_step(ipr_cmd); 9226 } while (rc == IPR_RC_JOB_CONTINUE); 9227 } 9228 9229 /** 9230 * _ipr_initiate_ioa_reset - Initiate an adapter reset 9231 * @ioa_cfg: ioa config struct 9232 * @job_step: first job step of reset job 9233 * @shutdown_type: shutdown type 9234 * 9235 * Description: This function will initiate the reset of the given adapter 9236 * starting at the selected job step. 9237 * If the caller needs to wait on the completion of the reset, 9238 * the caller must sleep on the reset_wait_q. 9239 * 9240 * Return value: 9241 * none 9242 **/ 9243 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 9244 int (*job_step) (struct ipr_cmnd *), 9245 enum ipr_shutdown_type shutdown_type) 9246 { 9247 struct ipr_cmnd *ipr_cmd; 9248 int i; 9249 9250 ioa_cfg->in_reset_reload = 1; 9251 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9252 spin_lock(&ioa_cfg->hrrq[i]._lock); 9253 ioa_cfg->hrrq[i].allow_cmds = 0; 9254 spin_unlock(&ioa_cfg->hrrq[i]._lock); 9255 } 9256 wmb(); 9257 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { 9258 ioa_cfg->scsi_unblock = 0; 9259 ioa_cfg->scsi_blocked = 1; 9260 scsi_block_requests(ioa_cfg->host); 9261 } 9262 9263 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 9264 ioa_cfg->reset_cmd = ipr_cmd; 9265 ipr_cmd->job_step = job_step; 9266 ipr_cmd->u.shutdown_type = shutdown_type; 9267 9268 ipr_reset_ioa_job(ipr_cmd); 9269 } 9270 9271 /** 9272 * ipr_initiate_ioa_reset - Initiate an adapter reset 9273 * @ioa_cfg: ioa config struct 9274 * @shutdown_type: shutdown type 9275 * 9276 * Description: This function will initiate the reset of the given adapter. 9277 * If the caller needs to wait on the completion of the reset, 9278 * the caller must sleep on the reset_wait_q. 9279 * 9280 * Return value: 9281 * none 9282 **/ 9283 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 9284 enum ipr_shutdown_type shutdown_type) 9285 { 9286 int i; 9287 9288 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) 9289 return; 9290 9291 if (ioa_cfg->in_reset_reload) { 9292 if (ioa_cfg->sdt_state == GET_DUMP) 9293 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 9294 else if (ioa_cfg->sdt_state == READ_DUMP) 9295 ioa_cfg->sdt_state = ABORT_DUMP; 9296 } 9297 9298 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 9299 dev_err(&ioa_cfg->pdev->dev, 9300 "IOA taken offline - error recovery failed\n"); 9301 9302 ioa_cfg->reset_retries = 0; 9303 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9304 spin_lock(&ioa_cfg->hrrq[i]._lock); 9305 ioa_cfg->hrrq[i].ioa_is_dead = 1; 9306 spin_unlock(&ioa_cfg->hrrq[i]._lock); 9307 } 9308 wmb(); 9309 9310 if (ioa_cfg->in_ioa_bringdown) { 9311 ioa_cfg->reset_cmd = NULL; 9312 ioa_cfg->in_reset_reload = 0; 9313 ipr_fail_all_ops(ioa_cfg); 9314 wake_up_all(&ioa_cfg->reset_wait_q); 9315 9316 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { 9317 ioa_cfg->scsi_unblock = 1; 9318 schedule_work(&ioa_cfg->work_q); 9319 } 9320 return; 9321 } else { 9322 ioa_cfg->in_ioa_bringdown = 1; 9323 shutdown_type = IPR_SHUTDOWN_NONE; 9324 } 9325 } 9326 9327 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 9328 shutdown_type); 9329 } 9330 9331 /** 9332 * ipr_reset_freeze - Hold off all I/O activity 9333 * @ipr_cmd: ipr command struct 9334 * 9335 * Description: If the PCI slot is frozen, hold off all I/O 9336 * activity; then, as soon as the slot is available again, 9337 * initiate an adapter reset. 9338 */ 9339 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 9340 { 9341 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9342 int i; 9343 9344 /* Disallow new interrupts, avoid loop */ 9345 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9346 spin_lock(&ioa_cfg->hrrq[i]._lock); 9347 ioa_cfg->hrrq[i].allow_interrupts = 0; 9348 spin_unlock(&ioa_cfg->hrrq[i]._lock); 9349 } 9350 wmb(); 9351 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 9352 ipr_cmd->done = ipr_reset_ioa_job; 9353 return IPR_RC_JOB_RETURN; 9354 } 9355 9356 /** 9357 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled 9358 * @pdev: PCI device struct 9359 * 9360 * Description: This routine is called to tell us that the MMIO 9361 * access to the IOA has been restored 9362 */ 9363 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev) 9364 { 9365 unsigned long flags = 0; 9366 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9367 9368 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9369 if (!ioa_cfg->probe_done) 9370 pci_save_state(pdev); 9371 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9372 return PCI_ERS_RESULT_NEED_RESET; 9373 } 9374 9375 /** 9376 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 9377 * @pdev: PCI device struct 9378 * 9379 * Description: This routine is called to tell us that the PCI bus 9380 * is down. Can't do anything here, except put the device driver 9381 * into a holding pattern, waiting for the PCI bus to come back. 9382 */ 9383 static void ipr_pci_frozen(struct pci_dev *pdev) 9384 { 9385 unsigned long flags = 0; 9386 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9387 9388 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9389 if (ioa_cfg->probe_done) 9390 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 9391 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9392 } 9393 9394 /** 9395 * ipr_pci_slot_reset - Called when PCI slot has been reset. 9396 * @pdev: PCI device struct 9397 * 9398 * Description: This routine is called by the pci error recovery 9399 * code after the PCI slot has been reset, just before we 9400 * should resume normal operations. 9401 */ 9402 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 9403 { 9404 unsigned long flags = 0; 9405 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9406 9407 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9408 if (ioa_cfg->probe_done) { 9409 if (ioa_cfg->needs_warm_reset) 9410 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 9411 else 9412 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 9413 IPR_SHUTDOWN_NONE); 9414 } else 9415 wake_up_all(&ioa_cfg->eeh_wait_q); 9416 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9417 return PCI_ERS_RESULT_RECOVERED; 9418 } 9419 9420 /** 9421 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 9422 * @pdev: PCI device struct 9423 * 9424 * Description: This routine is called when the PCI bus has 9425 * permanently failed. 9426 */ 9427 static void ipr_pci_perm_failure(struct pci_dev *pdev) 9428 { 9429 unsigned long flags = 0; 9430 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9431 int i; 9432 9433 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9434 if (ioa_cfg->probe_done) { 9435 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 9436 ioa_cfg->sdt_state = ABORT_DUMP; 9437 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1; 9438 ioa_cfg->in_ioa_bringdown = 1; 9439 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9440 spin_lock(&ioa_cfg->hrrq[i]._lock); 9441 ioa_cfg->hrrq[i].allow_cmds = 0; 9442 spin_unlock(&ioa_cfg->hrrq[i]._lock); 9443 } 9444 wmb(); 9445 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 9446 } else 9447 wake_up_all(&ioa_cfg->eeh_wait_q); 9448 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9449 } 9450 9451 /** 9452 * ipr_pci_error_detected - Called when a PCI error is detected. 9453 * @pdev: PCI device struct 9454 * @state: PCI channel state 9455 * 9456 * Description: Called when a PCI error is detected. 9457 * 9458 * Return value: 9459 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 9460 */ 9461 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 9462 pci_channel_state_t state) 9463 { 9464 switch (state) { 9465 case pci_channel_io_frozen: 9466 ipr_pci_frozen(pdev); 9467 return PCI_ERS_RESULT_CAN_RECOVER; 9468 case pci_channel_io_perm_failure: 9469 ipr_pci_perm_failure(pdev); 9470 return PCI_ERS_RESULT_DISCONNECT; 9471 break; 9472 default: 9473 break; 9474 } 9475 return PCI_ERS_RESULT_NEED_RESET; 9476 } 9477 9478 /** 9479 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 9480 * @ioa_cfg: ioa cfg struct 9481 * 9482 * Description: This is the second phase of adapter initialization 9483 * This function takes care of initilizing the adapter to the point 9484 * where it can accept new commands. 9485 9486 * Return value: 9487 * 0 on success / -EIO on failure 9488 **/ 9489 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 9490 { 9491 int rc = 0; 9492 unsigned long host_lock_flags = 0; 9493 9494 ENTER; 9495 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 9496 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 9497 ioa_cfg->probe_done = 1; 9498 if (ioa_cfg->needs_hard_reset) { 9499 ioa_cfg->needs_hard_reset = 0; 9500 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 9501 } else 9502 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 9503 IPR_SHUTDOWN_NONE); 9504 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 9505 9506 LEAVE; 9507 return rc; 9508 } 9509 9510 /** 9511 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 9512 * @ioa_cfg: ioa config struct 9513 * 9514 * Return value: 9515 * none 9516 **/ 9517 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 9518 { 9519 int i; 9520 9521 if (ioa_cfg->ipr_cmnd_list) { 9522 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 9523 if (ioa_cfg->ipr_cmnd_list[i]) 9524 dma_pool_free(ioa_cfg->ipr_cmd_pool, 9525 ioa_cfg->ipr_cmnd_list[i], 9526 ioa_cfg->ipr_cmnd_list_dma[i]); 9527 9528 ioa_cfg->ipr_cmnd_list[i] = NULL; 9529 } 9530 } 9531 9532 dma_pool_destroy(ioa_cfg->ipr_cmd_pool); 9533 9534 kfree(ioa_cfg->ipr_cmnd_list); 9535 kfree(ioa_cfg->ipr_cmnd_list_dma); 9536 ioa_cfg->ipr_cmnd_list = NULL; 9537 ioa_cfg->ipr_cmnd_list_dma = NULL; 9538 ioa_cfg->ipr_cmd_pool = NULL; 9539 } 9540 9541 /** 9542 * ipr_free_mem - Frees memory allocated for an adapter 9543 * @ioa_cfg: ioa cfg struct 9544 * 9545 * Return value: 9546 * nothing 9547 **/ 9548 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 9549 { 9550 int i; 9551 9552 kfree(ioa_cfg->res_entries); 9553 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs), 9554 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 9555 ipr_free_cmd_blks(ioa_cfg); 9556 9557 for (i = 0; i < ioa_cfg->hrrq_num; i++) 9558 dma_free_coherent(&ioa_cfg->pdev->dev, 9559 sizeof(u32) * ioa_cfg->hrrq[i].size, 9560 ioa_cfg->hrrq[i].host_rrq, 9561 ioa_cfg->hrrq[i].host_rrq_dma); 9562 9563 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size, 9564 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma); 9565 9566 for (i = 0; i < IPR_MAX_HCAMS; i++) { 9567 dma_free_coherent(&ioa_cfg->pdev->dev, 9568 sizeof(struct ipr_hostrcb), 9569 ioa_cfg->hostrcb[i], 9570 ioa_cfg->hostrcb_dma[i]); 9571 } 9572 9573 ipr_free_dump(ioa_cfg); 9574 kfree(ioa_cfg->trace); 9575 } 9576 9577 /** 9578 * ipr_free_irqs - Free all allocated IRQs for the adapter. 9579 * @ioa_cfg: ipr cfg struct 9580 * 9581 * This function frees all allocated IRQs for the 9582 * specified adapter. 9583 * 9584 * Return value: 9585 * none 9586 **/ 9587 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg) 9588 { 9589 struct pci_dev *pdev = ioa_cfg->pdev; 9590 int i; 9591 9592 for (i = 0; i < ioa_cfg->nvectors; i++) 9593 free_irq(pci_irq_vector(pdev, i), &ioa_cfg->hrrq[i]); 9594 pci_free_irq_vectors(pdev); 9595 } 9596 9597 /** 9598 * ipr_free_all_resources - Free all allocated resources for an adapter. 9599 * @ipr_cmd: ipr command struct 9600 * 9601 * This function frees all allocated resources for the 9602 * specified adapter. 9603 * 9604 * Return value: 9605 * none 9606 **/ 9607 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 9608 { 9609 struct pci_dev *pdev = ioa_cfg->pdev; 9610 9611 ENTER; 9612 ipr_free_irqs(ioa_cfg); 9613 if (ioa_cfg->reset_work_q) 9614 destroy_workqueue(ioa_cfg->reset_work_q); 9615 iounmap(ioa_cfg->hdw_dma_regs); 9616 pci_release_regions(pdev); 9617 ipr_free_mem(ioa_cfg); 9618 scsi_host_put(ioa_cfg->host); 9619 pci_disable_device(pdev); 9620 LEAVE; 9621 } 9622 9623 /** 9624 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 9625 * @ioa_cfg: ioa config struct 9626 * 9627 * Return value: 9628 * 0 on success / -ENOMEM on allocation failure 9629 **/ 9630 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 9631 { 9632 struct ipr_cmnd *ipr_cmd; 9633 struct ipr_ioarcb *ioarcb; 9634 dma_addr_t dma_addr; 9635 int i, entries_each_hrrq, hrrq_id = 0; 9636 9637 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev, 9638 sizeof(struct ipr_cmnd), 512, 0); 9639 9640 if (!ioa_cfg->ipr_cmd_pool) 9641 return -ENOMEM; 9642 9643 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL); 9644 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL); 9645 9646 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) { 9647 ipr_free_cmd_blks(ioa_cfg); 9648 return -ENOMEM; 9649 } 9650 9651 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9652 if (ioa_cfg->hrrq_num > 1) { 9653 if (i == 0) { 9654 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS; 9655 ioa_cfg->hrrq[i].min_cmd_id = 0; 9656 ioa_cfg->hrrq[i].max_cmd_id = 9657 (entries_each_hrrq - 1); 9658 } else { 9659 entries_each_hrrq = 9660 IPR_NUM_BASE_CMD_BLKS/ 9661 (ioa_cfg->hrrq_num - 1); 9662 ioa_cfg->hrrq[i].min_cmd_id = 9663 IPR_NUM_INTERNAL_CMD_BLKS + 9664 (i - 1) * entries_each_hrrq; 9665 ioa_cfg->hrrq[i].max_cmd_id = 9666 (IPR_NUM_INTERNAL_CMD_BLKS + 9667 i * entries_each_hrrq - 1); 9668 } 9669 } else { 9670 entries_each_hrrq = IPR_NUM_CMD_BLKS; 9671 ioa_cfg->hrrq[i].min_cmd_id = 0; 9672 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1); 9673 } 9674 ioa_cfg->hrrq[i].size = entries_each_hrrq; 9675 } 9676 9677 BUG_ON(ioa_cfg->hrrq_num == 0); 9678 9679 i = IPR_NUM_CMD_BLKS - 9680 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1; 9681 if (i > 0) { 9682 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i; 9683 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i; 9684 } 9685 9686 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 9687 ipr_cmd = dma_pool_zalloc(ioa_cfg->ipr_cmd_pool, 9688 GFP_KERNEL, &dma_addr); 9689 9690 if (!ipr_cmd) { 9691 ipr_free_cmd_blks(ioa_cfg); 9692 return -ENOMEM; 9693 } 9694 9695 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 9696 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 9697 9698 ioarcb = &ipr_cmd->ioarcb; 9699 ipr_cmd->dma_addr = dma_addr; 9700 if (ioa_cfg->sis64) 9701 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 9702 else 9703 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 9704 9705 ioarcb->host_response_handle = cpu_to_be32(i << 2); 9706 if (ioa_cfg->sis64) { 9707 ioarcb->u.sis64_addr_data.data_ioadl_addr = 9708 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 9709 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 9710 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); 9711 } else { 9712 ioarcb->write_ioadl_addr = 9713 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 9714 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 9715 ioarcb->ioasa_host_pci_addr = 9716 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); 9717 } 9718 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 9719 ipr_cmd->cmd_index = i; 9720 ipr_cmd->ioa_cfg = ioa_cfg; 9721 ipr_cmd->sense_buffer_dma = dma_addr + 9722 offsetof(struct ipr_cmnd, sense_buffer); 9723 9724 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id; 9725 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id]; 9726 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 9727 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id) 9728 hrrq_id++; 9729 } 9730 9731 return 0; 9732 } 9733 9734 /** 9735 * ipr_alloc_mem - Allocate memory for an adapter 9736 * @ioa_cfg: ioa config struct 9737 * 9738 * Return value: 9739 * 0 on success / non-zero for error 9740 **/ 9741 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 9742 { 9743 struct pci_dev *pdev = ioa_cfg->pdev; 9744 int i, rc = -ENOMEM; 9745 9746 ENTER; 9747 ioa_cfg->res_entries = kcalloc(ioa_cfg->max_devs_supported, 9748 sizeof(struct ipr_resource_entry), 9749 GFP_KERNEL); 9750 9751 if (!ioa_cfg->res_entries) 9752 goto out; 9753 9754 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 9755 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 9756 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 9757 } 9758 9759 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev, 9760 sizeof(struct ipr_misc_cbs), 9761 &ioa_cfg->vpd_cbs_dma, 9762 GFP_KERNEL); 9763 9764 if (!ioa_cfg->vpd_cbs) 9765 goto out_free_res_entries; 9766 9767 if (ipr_alloc_cmd_blks(ioa_cfg)) 9768 goto out_free_vpd_cbs; 9769 9770 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9771 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev, 9772 sizeof(u32) * ioa_cfg->hrrq[i].size, 9773 &ioa_cfg->hrrq[i].host_rrq_dma, 9774 GFP_KERNEL); 9775 9776 if (!ioa_cfg->hrrq[i].host_rrq) { 9777 while (--i > 0) 9778 dma_free_coherent(&pdev->dev, 9779 sizeof(u32) * ioa_cfg->hrrq[i].size, 9780 ioa_cfg->hrrq[i].host_rrq, 9781 ioa_cfg->hrrq[i].host_rrq_dma); 9782 goto out_ipr_free_cmd_blocks; 9783 } 9784 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg; 9785 } 9786 9787 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev, 9788 ioa_cfg->cfg_table_size, 9789 &ioa_cfg->cfg_table_dma, 9790 GFP_KERNEL); 9791 9792 if (!ioa_cfg->u.cfg_table) 9793 goto out_free_host_rrq; 9794 9795 for (i = 0; i < IPR_MAX_HCAMS; i++) { 9796 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev, 9797 sizeof(struct ipr_hostrcb), 9798 &ioa_cfg->hostrcb_dma[i], 9799 GFP_KERNEL); 9800 9801 if (!ioa_cfg->hostrcb[i]) 9802 goto out_free_hostrcb_dma; 9803 9804 ioa_cfg->hostrcb[i]->hostrcb_dma = 9805 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 9806 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 9807 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 9808 } 9809 9810 ioa_cfg->trace = kcalloc(IPR_NUM_TRACE_ENTRIES, 9811 sizeof(struct ipr_trace_entry), 9812 GFP_KERNEL); 9813 9814 if (!ioa_cfg->trace) 9815 goto out_free_hostrcb_dma; 9816 9817 rc = 0; 9818 out: 9819 LEAVE; 9820 return rc; 9821 9822 out_free_hostrcb_dma: 9823 while (i-- > 0) { 9824 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb), 9825 ioa_cfg->hostrcb[i], 9826 ioa_cfg->hostrcb_dma[i]); 9827 } 9828 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size, 9829 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma); 9830 out_free_host_rrq: 9831 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9832 dma_free_coherent(&pdev->dev, 9833 sizeof(u32) * ioa_cfg->hrrq[i].size, 9834 ioa_cfg->hrrq[i].host_rrq, 9835 ioa_cfg->hrrq[i].host_rrq_dma); 9836 } 9837 out_ipr_free_cmd_blocks: 9838 ipr_free_cmd_blks(ioa_cfg); 9839 out_free_vpd_cbs: 9840 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs), 9841 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 9842 out_free_res_entries: 9843 kfree(ioa_cfg->res_entries); 9844 goto out; 9845 } 9846 9847 /** 9848 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 9849 * @ioa_cfg: ioa config struct 9850 * 9851 * Return value: 9852 * none 9853 **/ 9854 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 9855 { 9856 int i; 9857 9858 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 9859 ioa_cfg->bus_attr[i].bus = i; 9860 ioa_cfg->bus_attr[i].qas_enabled = 0; 9861 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 9862 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 9863 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 9864 else 9865 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 9866 } 9867 } 9868 9869 /** 9870 * ipr_init_regs - Initialize IOA registers 9871 * @ioa_cfg: ioa config struct 9872 * 9873 * Return value: 9874 * none 9875 **/ 9876 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg) 9877 { 9878 const struct ipr_interrupt_offsets *p; 9879 struct ipr_interrupts *t; 9880 void __iomem *base; 9881 9882 p = &ioa_cfg->chip_cfg->regs; 9883 t = &ioa_cfg->regs; 9884 base = ioa_cfg->hdw_dma_regs; 9885 9886 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 9887 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 9888 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 9889 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 9890 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 9891 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 9892 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 9893 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 9894 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 9895 t->ioarrin_reg = base + p->ioarrin_reg; 9896 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 9897 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 9898 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 9899 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 9900 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 9901 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 9902 9903 if (ioa_cfg->sis64) { 9904 t->init_feedback_reg = base + p->init_feedback_reg; 9905 t->dump_addr_reg = base + p->dump_addr_reg; 9906 t->dump_data_reg = base + p->dump_data_reg; 9907 t->endian_swap_reg = base + p->endian_swap_reg; 9908 } 9909 } 9910 9911 /** 9912 * ipr_init_ioa_cfg - Initialize IOA config struct 9913 * @ioa_cfg: ioa config struct 9914 * @host: scsi host struct 9915 * @pdev: PCI dev struct 9916 * 9917 * Return value: 9918 * none 9919 **/ 9920 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 9921 struct Scsi_Host *host, struct pci_dev *pdev) 9922 { 9923 int i; 9924 9925 ioa_cfg->host = host; 9926 ioa_cfg->pdev = pdev; 9927 ioa_cfg->log_level = ipr_log_level; 9928 ioa_cfg->doorbell = IPR_DOORBELL; 9929 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 9930 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 9931 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 9932 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 9933 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 9934 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 9935 9936 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 9937 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 9938 INIT_LIST_HEAD(&ioa_cfg->hostrcb_report_q); 9939 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 9940 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 9941 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 9942 INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread); 9943 init_waitqueue_head(&ioa_cfg->reset_wait_q); 9944 init_waitqueue_head(&ioa_cfg->msi_wait_q); 9945 init_waitqueue_head(&ioa_cfg->eeh_wait_q); 9946 ioa_cfg->sdt_state = INACTIVE; 9947 9948 ipr_initialize_bus_attr(ioa_cfg); 9949 ioa_cfg->max_devs_supported = ipr_max_devs; 9950 9951 if (ioa_cfg->sis64) { 9952 host->max_channel = IPR_MAX_SIS64_BUSES; 9953 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 9954 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 9955 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 9956 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 9957 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 9958 + ((sizeof(struct ipr_config_table_entry64) 9959 * ioa_cfg->max_devs_supported))); 9960 } else { 9961 host->max_channel = IPR_VSET_BUS; 9962 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 9963 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 9964 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 9965 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 9966 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 9967 + ((sizeof(struct ipr_config_table_entry) 9968 * ioa_cfg->max_devs_supported))); 9969 } 9970 9971 host->unique_id = host->host_no; 9972 host->max_cmd_len = IPR_MAX_CDB_LEN; 9973 host->can_queue = ioa_cfg->max_cmds; 9974 pci_set_drvdata(pdev, ioa_cfg); 9975 9976 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) { 9977 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q); 9978 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q); 9979 spin_lock_init(&ioa_cfg->hrrq[i]._lock); 9980 if (i == 0) 9981 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock; 9982 else 9983 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock; 9984 } 9985 } 9986 9987 /** 9988 * ipr_get_chip_info - Find adapter chip information 9989 * @dev_id: PCI device id struct 9990 * 9991 * Return value: 9992 * ptr to chip information on success / NULL on failure 9993 **/ 9994 static const struct ipr_chip_t * 9995 ipr_get_chip_info(const struct pci_device_id *dev_id) 9996 { 9997 int i; 9998 9999 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 10000 if (ipr_chip[i].vendor == dev_id->vendor && 10001 ipr_chip[i].device == dev_id->device) 10002 return &ipr_chip[i]; 10003 return NULL; 10004 } 10005 10006 /** 10007 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete 10008 * during probe time 10009 * @ioa_cfg: ioa config struct 10010 * 10011 * Return value: 10012 * None 10013 **/ 10014 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg) 10015 { 10016 struct pci_dev *pdev = ioa_cfg->pdev; 10017 10018 if (pci_channel_offline(pdev)) { 10019 wait_event_timeout(ioa_cfg->eeh_wait_q, 10020 !pci_channel_offline(pdev), 10021 IPR_PCI_ERROR_RECOVERY_TIMEOUT); 10022 pci_restore_state(pdev); 10023 } 10024 } 10025 10026 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg) 10027 { 10028 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1; 10029 10030 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) { 10031 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n, 10032 "host%d-%d", ioa_cfg->host->host_no, vec_idx); 10033 ioa_cfg->vectors_info[vec_idx]. 10034 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0; 10035 } 10036 } 10037 10038 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg, 10039 struct pci_dev *pdev) 10040 { 10041 int i, rc; 10042 10043 for (i = 1; i < ioa_cfg->nvectors; i++) { 10044 rc = request_irq(pci_irq_vector(pdev, i), 10045 ipr_isr_mhrrq, 10046 0, 10047 ioa_cfg->vectors_info[i].desc, 10048 &ioa_cfg->hrrq[i]); 10049 if (rc) { 10050 while (--i >= 0) 10051 free_irq(pci_irq_vector(pdev, i), 10052 &ioa_cfg->hrrq[i]); 10053 return rc; 10054 } 10055 } 10056 return 0; 10057 } 10058 10059 /** 10060 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 10061 * @pdev: PCI device struct 10062 * 10063 * Description: Simply set the msi_received flag to 1 indicating that 10064 * Message Signaled Interrupts are supported. 10065 * 10066 * Return value: 10067 * 0 on success / non-zero on failure 10068 **/ 10069 static irqreturn_t ipr_test_intr(int irq, void *devp) 10070 { 10071 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 10072 unsigned long lock_flags = 0; 10073 irqreturn_t rc = IRQ_HANDLED; 10074 10075 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq); 10076 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10077 10078 ioa_cfg->msi_received = 1; 10079 wake_up(&ioa_cfg->msi_wait_q); 10080 10081 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10082 return rc; 10083 } 10084 10085 /** 10086 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 10087 * @pdev: PCI device struct 10088 * 10089 * Description: This routine sets up and initiates a test interrupt to determine 10090 * if the interrupt is received via the ipr_test_intr() service routine. 10091 * If the tests fails, the driver will fall back to LSI. 10092 * 10093 * Return value: 10094 * 0 on success / non-zero on failure 10095 **/ 10096 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev) 10097 { 10098 int rc; 10099 volatile u32 int_reg; 10100 unsigned long lock_flags = 0; 10101 int irq = pci_irq_vector(pdev, 0); 10102 10103 ENTER; 10104 10105 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10106 init_waitqueue_head(&ioa_cfg->msi_wait_q); 10107 ioa_cfg->msi_received = 0; 10108 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 10109 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 10110 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 10111 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10112 10113 rc = request_irq(irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 10114 if (rc) { 10115 dev_err(&pdev->dev, "Can not assign irq %d\n", irq); 10116 return rc; 10117 } else if (ipr_debug) 10118 dev_info(&pdev->dev, "IRQ assigned: %d\n", irq); 10119 10120 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 10121 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 10122 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 10123 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10124 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 10125 10126 if (!ioa_cfg->msi_received) { 10127 /* MSI test failed */ 10128 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 10129 rc = -EOPNOTSUPP; 10130 } else if (ipr_debug) 10131 dev_info(&pdev->dev, "MSI test succeeded.\n"); 10132 10133 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10134 10135 free_irq(irq, ioa_cfg); 10136 10137 LEAVE; 10138 10139 return rc; 10140 } 10141 10142 /* ipr_probe_ioa - Allocates memory and does first stage of initialization 10143 * @pdev: PCI device struct 10144 * @dev_id: PCI device id struct 10145 * 10146 * Return value: 10147 * 0 on success / non-zero on failure 10148 **/ 10149 static int ipr_probe_ioa(struct pci_dev *pdev, 10150 const struct pci_device_id *dev_id) 10151 { 10152 struct ipr_ioa_cfg *ioa_cfg; 10153 struct Scsi_Host *host; 10154 unsigned long ipr_regs_pci; 10155 void __iomem *ipr_regs; 10156 int rc = PCIBIOS_SUCCESSFUL; 10157 volatile u32 mask, uproc, interrupts; 10158 unsigned long lock_flags, driver_lock_flags; 10159 unsigned int irq_flag; 10160 10161 ENTER; 10162 10163 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 10164 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 10165 10166 if (!host) { 10167 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 10168 rc = -ENOMEM; 10169 goto out; 10170 } 10171 10172 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 10173 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 10174 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops); 10175 10176 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 10177 10178 if (!ioa_cfg->ipr_chip) { 10179 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 10180 dev_id->vendor, dev_id->device); 10181 goto out_scsi_host_put; 10182 } 10183 10184 /* set SIS 32 or SIS 64 */ 10185 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 10186 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 10187 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr; 10188 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds; 10189 10190 if (ipr_transop_timeout) 10191 ioa_cfg->transop_timeout = ipr_transop_timeout; 10192 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 10193 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 10194 else 10195 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 10196 10197 ioa_cfg->revid = pdev->revision; 10198 10199 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 10200 10201 ipr_regs_pci = pci_resource_start(pdev, 0); 10202 10203 rc = pci_request_regions(pdev, IPR_NAME); 10204 if (rc < 0) { 10205 dev_err(&pdev->dev, 10206 "Couldn't register memory range of registers\n"); 10207 goto out_scsi_host_put; 10208 } 10209 10210 rc = pci_enable_device(pdev); 10211 10212 if (rc || pci_channel_offline(pdev)) { 10213 if (pci_channel_offline(pdev)) { 10214 ipr_wait_for_pci_err_recovery(ioa_cfg); 10215 rc = pci_enable_device(pdev); 10216 } 10217 10218 if (rc) { 10219 dev_err(&pdev->dev, "Cannot enable adapter\n"); 10220 ipr_wait_for_pci_err_recovery(ioa_cfg); 10221 goto out_release_regions; 10222 } 10223 } 10224 10225 ipr_regs = pci_ioremap_bar(pdev, 0); 10226 10227 if (!ipr_regs) { 10228 dev_err(&pdev->dev, 10229 "Couldn't map memory range of registers\n"); 10230 rc = -ENOMEM; 10231 goto out_disable; 10232 } 10233 10234 ioa_cfg->hdw_dma_regs = ipr_regs; 10235 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 10236 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 10237 10238 ipr_init_regs(ioa_cfg); 10239 10240 if (ioa_cfg->sis64) { 10241 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 10242 if (rc < 0) { 10243 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n"); 10244 rc = dma_set_mask_and_coherent(&pdev->dev, 10245 DMA_BIT_MASK(32)); 10246 } 10247 } else 10248 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 10249 10250 if (rc < 0) { 10251 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 10252 goto cleanup_nomem; 10253 } 10254 10255 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 10256 ioa_cfg->chip_cfg->cache_line_size); 10257 10258 if (rc != PCIBIOS_SUCCESSFUL) { 10259 dev_err(&pdev->dev, "Write of cache line size failed\n"); 10260 ipr_wait_for_pci_err_recovery(ioa_cfg); 10261 rc = -EIO; 10262 goto cleanup_nomem; 10263 } 10264 10265 /* Issue MMIO read to ensure card is not in EEH */ 10266 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); 10267 ipr_wait_for_pci_err_recovery(ioa_cfg); 10268 10269 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) { 10270 dev_err(&pdev->dev, "The max number of MSIX is %d\n", 10271 IPR_MAX_MSIX_VECTORS); 10272 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS; 10273 } 10274 10275 irq_flag = PCI_IRQ_LEGACY; 10276 if (ioa_cfg->ipr_chip->has_msi) 10277 irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX; 10278 rc = pci_alloc_irq_vectors(pdev, 1, ipr_number_of_msix, irq_flag); 10279 if (rc < 0) { 10280 ipr_wait_for_pci_err_recovery(ioa_cfg); 10281 goto cleanup_nomem; 10282 } 10283 ioa_cfg->nvectors = rc; 10284 10285 if (!pdev->msi_enabled && !pdev->msix_enabled) 10286 ioa_cfg->clear_isr = 1; 10287 10288 pci_set_master(pdev); 10289 10290 if (pci_channel_offline(pdev)) { 10291 ipr_wait_for_pci_err_recovery(ioa_cfg); 10292 pci_set_master(pdev); 10293 if (pci_channel_offline(pdev)) { 10294 rc = -EIO; 10295 goto out_msi_disable; 10296 } 10297 } 10298 10299 if (pdev->msi_enabled || pdev->msix_enabled) { 10300 rc = ipr_test_msi(ioa_cfg, pdev); 10301 switch (rc) { 10302 case 0: 10303 dev_info(&pdev->dev, 10304 "Request for %d MSI%ss succeeded.", ioa_cfg->nvectors, 10305 pdev->msix_enabled ? "-X" : ""); 10306 break; 10307 case -EOPNOTSUPP: 10308 ipr_wait_for_pci_err_recovery(ioa_cfg); 10309 pci_free_irq_vectors(pdev); 10310 10311 ioa_cfg->nvectors = 1; 10312 ioa_cfg->clear_isr = 1; 10313 break; 10314 default: 10315 goto out_msi_disable; 10316 } 10317 } 10318 10319 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors, 10320 (unsigned int)num_online_cpus(), 10321 (unsigned int)IPR_MAX_HRRQ_NUM); 10322 10323 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 10324 goto out_msi_disable; 10325 10326 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 10327 goto out_msi_disable; 10328 10329 rc = ipr_alloc_mem(ioa_cfg); 10330 if (rc < 0) { 10331 dev_err(&pdev->dev, 10332 "Couldn't allocate enough memory for device driver!\n"); 10333 goto out_msi_disable; 10334 } 10335 10336 /* Save away PCI config space for use following IOA reset */ 10337 rc = pci_save_state(pdev); 10338 10339 if (rc != PCIBIOS_SUCCESSFUL) { 10340 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 10341 rc = -EIO; 10342 goto cleanup_nolog; 10343 } 10344 10345 /* 10346 * If HRRQ updated interrupt is not masked, or reset alert is set, 10347 * the card is in an unknown state and needs a hard reset 10348 */ 10349 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 10350 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 10351 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 10352 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 10353 ioa_cfg->needs_hard_reset = 1; 10354 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices) 10355 ioa_cfg->needs_hard_reset = 1; 10356 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 10357 ioa_cfg->ioa_unit_checked = 1; 10358 10359 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10360 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 10361 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10362 10363 if (pdev->msi_enabled || pdev->msix_enabled) { 10364 name_msi_vectors(ioa_cfg); 10365 rc = request_irq(pci_irq_vector(pdev, 0), ipr_isr, 0, 10366 ioa_cfg->vectors_info[0].desc, 10367 &ioa_cfg->hrrq[0]); 10368 if (!rc) 10369 rc = ipr_request_other_msi_irqs(ioa_cfg, pdev); 10370 } else { 10371 rc = request_irq(pdev->irq, ipr_isr, 10372 IRQF_SHARED, 10373 IPR_NAME, &ioa_cfg->hrrq[0]); 10374 } 10375 if (rc) { 10376 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 10377 pdev->irq, rc); 10378 goto cleanup_nolog; 10379 } 10380 10381 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 10382 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 10383 ioa_cfg->needs_warm_reset = 1; 10384 ioa_cfg->reset = ipr_reset_slot_reset; 10385 10386 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d", 10387 WQ_MEM_RECLAIM, host->host_no); 10388 10389 if (!ioa_cfg->reset_work_q) { 10390 dev_err(&pdev->dev, "Couldn't register reset workqueue\n"); 10391 rc = -ENOMEM; 10392 goto out_free_irq; 10393 } 10394 } else 10395 ioa_cfg->reset = ipr_reset_start_bist; 10396 10397 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); 10398 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 10399 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); 10400 10401 LEAVE; 10402 out: 10403 return rc; 10404 10405 out_free_irq: 10406 ipr_free_irqs(ioa_cfg); 10407 cleanup_nolog: 10408 ipr_free_mem(ioa_cfg); 10409 out_msi_disable: 10410 ipr_wait_for_pci_err_recovery(ioa_cfg); 10411 pci_free_irq_vectors(pdev); 10412 cleanup_nomem: 10413 iounmap(ipr_regs); 10414 out_disable: 10415 pci_disable_device(pdev); 10416 out_release_regions: 10417 pci_release_regions(pdev); 10418 out_scsi_host_put: 10419 scsi_host_put(host); 10420 goto out; 10421 } 10422 10423 /** 10424 * ipr_initiate_ioa_bringdown - Bring down an adapter 10425 * @ioa_cfg: ioa config struct 10426 * @shutdown_type: shutdown type 10427 * 10428 * Description: This function will initiate bringing down the adapter. 10429 * This consists of issuing an IOA shutdown to the adapter 10430 * to flush the cache, and running BIST. 10431 * If the caller needs to wait on the completion of the reset, 10432 * the caller must sleep on the reset_wait_q. 10433 * 10434 * Return value: 10435 * none 10436 **/ 10437 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 10438 enum ipr_shutdown_type shutdown_type) 10439 { 10440 ENTER; 10441 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 10442 ioa_cfg->sdt_state = ABORT_DUMP; 10443 ioa_cfg->reset_retries = 0; 10444 ioa_cfg->in_ioa_bringdown = 1; 10445 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 10446 LEAVE; 10447 } 10448 10449 /** 10450 * __ipr_remove - Remove a single adapter 10451 * @pdev: pci device struct 10452 * 10453 * Adapter hot plug remove entry point. 10454 * 10455 * Return value: 10456 * none 10457 **/ 10458 static void __ipr_remove(struct pci_dev *pdev) 10459 { 10460 unsigned long host_lock_flags = 0; 10461 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 10462 int i; 10463 unsigned long driver_lock_flags; 10464 ENTER; 10465 10466 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 10467 while (ioa_cfg->in_reset_reload) { 10468 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 10469 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 10470 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 10471 } 10472 10473 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 10474 spin_lock(&ioa_cfg->hrrq[i]._lock); 10475 ioa_cfg->hrrq[i].removing_ioa = 1; 10476 spin_unlock(&ioa_cfg->hrrq[i]._lock); 10477 } 10478 wmb(); 10479 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 10480 10481 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 10482 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 10483 flush_work(&ioa_cfg->work_q); 10484 if (ioa_cfg->reset_work_q) 10485 flush_workqueue(ioa_cfg->reset_work_q); 10486 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 10487 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 10488 10489 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); 10490 list_del(&ioa_cfg->queue); 10491 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); 10492 10493 if (ioa_cfg->sdt_state == ABORT_DUMP) 10494 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 10495 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 10496 10497 ipr_free_all_resources(ioa_cfg); 10498 10499 LEAVE; 10500 } 10501 10502 /** 10503 * ipr_remove - IOA hot plug remove entry point 10504 * @pdev: pci device struct 10505 * 10506 * Adapter hot plug remove entry point. 10507 * 10508 * Return value: 10509 * none 10510 **/ 10511 static void ipr_remove(struct pci_dev *pdev) 10512 { 10513 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 10514 10515 ENTER; 10516 10517 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 10518 &ipr_trace_attr); 10519 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 10520 &ipr_dump_attr); 10521 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj, 10522 &ipr_ioa_async_err_log); 10523 scsi_remove_host(ioa_cfg->host); 10524 10525 __ipr_remove(pdev); 10526 10527 LEAVE; 10528 } 10529 10530 /** 10531 * ipr_probe - Adapter hot plug add entry point 10532 * 10533 * Return value: 10534 * 0 on success / non-zero on failure 10535 **/ 10536 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) 10537 { 10538 struct ipr_ioa_cfg *ioa_cfg; 10539 unsigned long flags; 10540 int rc, i; 10541 10542 rc = ipr_probe_ioa(pdev, dev_id); 10543 10544 if (rc) 10545 return rc; 10546 10547 ioa_cfg = pci_get_drvdata(pdev); 10548 rc = ipr_probe_ioa_part2(ioa_cfg); 10549 10550 if (rc) { 10551 __ipr_remove(pdev); 10552 return rc; 10553 } 10554 10555 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 10556 10557 if (rc) { 10558 __ipr_remove(pdev); 10559 return rc; 10560 } 10561 10562 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 10563 &ipr_trace_attr); 10564 10565 if (rc) { 10566 scsi_remove_host(ioa_cfg->host); 10567 __ipr_remove(pdev); 10568 return rc; 10569 } 10570 10571 rc = sysfs_create_bin_file(&ioa_cfg->host->shost_dev.kobj, 10572 &ipr_ioa_async_err_log); 10573 10574 if (rc) { 10575 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 10576 &ipr_dump_attr); 10577 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 10578 &ipr_trace_attr); 10579 scsi_remove_host(ioa_cfg->host); 10580 __ipr_remove(pdev); 10581 return rc; 10582 } 10583 10584 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 10585 &ipr_dump_attr); 10586 10587 if (rc) { 10588 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj, 10589 &ipr_ioa_async_err_log); 10590 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 10591 &ipr_trace_attr); 10592 scsi_remove_host(ioa_cfg->host); 10593 __ipr_remove(pdev); 10594 return rc; 10595 } 10596 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 10597 ioa_cfg->scan_enabled = 1; 10598 schedule_work(&ioa_cfg->work_q); 10599 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 10600 10601 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight; 10602 10603 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { 10604 for (i = 1; i < ioa_cfg->hrrq_num; i++) { 10605 irq_poll_init(&ioa_cfg->hrrq[i].iopoll, 10606 ioa_cfg->iopoll_weight, ipr_iopoll); 10607 } 10608 } 10609 10610 scsi_scan_host(ioa_cfg->host); 10611 10612 return 0; 10613 } 10614 10615 /** 10616 * ipr_shutdown - Shutdown handler. 10617 * @pdev: pci device struct 10618 * 10619 * This function is invoked upon system shutdown/reboot. It will issue 10620 * an adapter shutdown to the adapter to flush the write cache. 10621 * 10622 * Return value: 10623 * none 10624 **/ 10625 static void ipr_shutdown(struct pci_dev *pdev) 10626 { 10627 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 10628 unsigned long lock_flags = 0; 10629 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL; 10630 int i; 10631 10632 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10633 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { 10634 ioa_cfg->iopoll_weight = 0; 10635 for (i = 1; i < ioa_cfg->hrrq_num; i++) 10636 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); 10637 } 10638 10639 while (ioa_cfg->in_reset_reload) { 10640 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10641 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 10642 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10643 } 10644 10645 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) 10646 shutdown_type = IPR_SHUTDOWN_QUIESCE; 10647 10648 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type); 10649 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10650 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 10651 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) { 10652 ipr_free_irqs(ioa_cfg); 10653 pci_disable_device(ioa_cfg->pdev); 10654 } 10655 } 10656 10657 static struct pci_device_id ipr_pci_table[] = { 10658 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 10659 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 10660 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 10661 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 10662 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 10663 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 10664 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 10665 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 10666 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 10667 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 10668 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 10669 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 10670 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 10671 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 10672 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 10673 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 10674 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10675 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 10676 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 10677 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 10678 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 10679 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10680 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 10681 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 10682 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10683 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 10684 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 10685 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 10686 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 10687 IPR_USE_LONG_TRANSOP_TIMEOUT}, 10688 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 10689 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 10690 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10691 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 10692 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, 10693 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10694 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 10695 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, 10696 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 10697 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, 10698 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 10699 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 10700 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 10701 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 10702 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 10703 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 10704 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 10705 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 10706 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 10707 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10708 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 10709 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 10710 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10711 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10712 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 10713 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10714 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 10715 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10716 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 10717 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10718 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 }, 10719 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10720 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 }, 10721 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10722 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, 10723 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10724 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 10725 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10726 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 10727 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10728 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 10729 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10730 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 }, 10731 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10732 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 10733 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10734 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 }, 10735 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10736 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 }, 10737 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10738 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 }, 10739 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10740 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 }, 10741 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10742 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 }, 10743 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10744 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 }, 10745 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10746 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 }, 10747 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10748 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 }, 10749 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10750 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 }, 10751 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10752 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 }, 10753 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10754 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 }, 10755 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10756 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 }, 10757 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10758 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 }, 10759 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10760 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 }, 10761 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10762 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 }, 10763 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, 10764 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 }, 10765 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, 10766 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 }, 10767 { } 10768 }; 10769 MODULE_DEVICE_TABLE(pci, ipr_pci_table); 10770 10771 static const struct pci_error_handlers ipr_err_handler = { 10772 .error_detected = ipr_pci_error_detected, 10773 .mmio_enabled = ipr_pci_mmio_enabled, 10774 .slot_reset = ipr_pci_slot_reset, 10775 }; 10776 10777 static struct pci_driver ipr_driver = { 10778 .name = IPR_NAME, 10779 .id_table = ipr_pci_table, 10780 .probe = ipr_probe, 10781 .remove = ipr_remove, 10782 .shutdown = ipr_shutdown, 10783 .err_handler = &ipr_err_handler, 10784 }; 10785 10786 /** 10787 * ipr_halt_done - Shutdown prepare completion 10788 * 10789 * Return value: 10790 * none 10791 **/ 10792 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 10793 { 10794 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 10795 } 10796 10797 /** 10798 * ipr_halt - Issue shutdown prepare to all adapters 10799 * 10800 * Return value: 10801 * NOTIFY_OK on success / NOTIFY_DONE on failure 10802 **/ 10803 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 10804 { 10805 struct ipr_cmnd *ipr_cmd; 10806 struct ipr_ioa_cfg *ioa_cfg; 10807 unsigned long flags = 0, driver_lock_flags; 10808 10809 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 10810 return NOTIFY_DONE; 10811 10812 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); 10813 10814 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 10815 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 10816 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds || 10817 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) { 10818 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 10819 continue; 10820 } 10821 10822 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 10823 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 10824 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 10825 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 10826 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 10827 10828 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 10829 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 10830 } 10831 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); 10832 10833 return NOTIFY_OK; 10834 } 10835 10836 static struct notifier_block ipr_notifier = { 10837 ipr_halt, NULL, 0 10838 }; 10839 10840 /** 10841 * ipr_init - Module entry point 10842 * 10843 * Return value: 10844 * 0 on success / negative value on failure 10845 **/ 10846 static int __init ipr_init(void) 10847 { 10848 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 10849 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 10850 10851 register_reboot_notifier(&ipr_notifier); 10852 return pci_register_driver(&ipr_driver); 10853 } 10854 10855 /** 10856 * ipr_exit - Module unload 10857 * 10858 * Module unload entry point. 10859 * 10860 * Return value: 10861 * none 10862 **/ 10863 static void __exit ipr_exit(void) 10864 { 10865 unregister_reboot_notifier(&ipr_notifier); 10866 pci_unregister_driver(&ipr_driver); 10867 } 10868 10869 module_init(ipr_init); 10870 module_exit(ipr_exit); 10871