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 += snprintf(p, buffer + len - p, "%02X", res_path[0]); 1303 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++) 1304 p += snprintf(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 += snprintf(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 .queuecommand = ipr_queuecommand, 6731 .eh_abort_handler = ipr_eh_abort, 6732 .eh_device_reset_handler = ipr_eh_dev_reset, 6733 .eh_host_reset_handler = ipr_eh_host_reset, 6734 .slave_alloc = ipr_slave_alloc, 6735 .slave_configure = ipr_slave_configure, 6736 .slave_destroy = ipr_slave_destroy, 6737 .scan_finished = ipr_scan_finished, 6738 .target_alloc = ipr_target_alloc, 6739 .target_destroy = ipr_target_destroy, 6740 .change_queue_depth = ipr_change_queue_depth, 6741 .bios_param = ipr_biosparam, 6742 .can_queue = IPR_MAX_COMMANDS, 6743 .this_id = -1, 6744 .sg_tablesize = IPR_MAX_SGLIST, 6745 .max_sectors = IPR_IOA_MAX_SECTORS, 6746 .cmd_per_lun = IPR_MAX_CMD_PER_LUN, 6747 .shost_attrs = ipr_ioa_attrs, 6748 .sdev_attrs = ipr_dev_attrs, 6749 .proc_name = IPR_NAME, 6750 }; 6751 6752 /** 6753 * ipr_ata_phy_reset - libata phy_reset handler 6754 * @ap: ata port to reset 6755 * 6756 **/ 6757 static void ipr_ata_phy_reset(struct ata_port *ap) 6758 { 6759 unsigned long flags; 6760 struct ipr_sata_port *sata_port = ap->private_data; 6761 struct ipr_resource_entry *res = sata_port->res; 6762 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6763 int rc; 6764 6765 ENTER; 6766 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6767 while (ioa_cfg->in_reset_reload) { 6768 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6769 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 6770 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6771 } 6772 6773 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) 6774 goto out_unlock; 6775 6776 rc = ipr_device_reset(ioa_cfg, res); 6777 6778 if (rc) { 6779 ap->link.device[0].class = ATA_DEV_NONE; 6780 goto out_unlock; 6781 } 6782 6783 ap->link.device[0].class = res->ata_class; 6784 if (ap->link.device[0].class == ATA_DEV_UNKNOWN) 6785 ap->link.device[0].class = ATA_DEV_NONE; 6786 6787 out_unlock: 6788 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6789 LEAVE; 6790 } 6791 6792 /** 6793 * ipr_ata_post_internal - Cleanup after an internal command 6794 * @qc: ATA queued command 6795 * 6796 * Return value: 6797 * none 6798 **/ 6799 static void ipr_ata_post_internal(struct ata_queued_cmd *qc) 6800 { 6801 struct ipr_sata_port *sata_port = qc->ap->private_data; 6802 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6803 struct ipr_cmnd *ipr_cmd; 6804 struct ipr_hrr_queue *hrrq; 6805 unsigned long flags; 6806 6807 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6808 while (ioa_cfg->in_reset_reload) { 6809 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6810 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 6811 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 6812 } 6813 6814 for_each_hrrq(hrrq, ioa_cfg) { 6815 spin_lock(&hrrq->_lock); 6816 list_for_each_entry(ipr_cmd, &hrrq->hrrq_pending_q, queue) { 6817 if (ipr_cmd->qc == qc) { 6818 ipr_device_reset(ioa_cfg, sata_port->res); 6819 break; 6820 } 6821 } 6822 spin_unlock(&hrrq->_lock); 6823 } 6824 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 6825 } 6826 6827 /** 6828 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure 6829 * @regs: destination 6830 * @tf: source ATA taskfile 6831 * 6832 * Return value: 6833 * none 6834 **/ 6835 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, 6836 struct ata_taskfile *tf) 6837 { 6838 regs->feature = tf->feature; 6839 regs->nsect = tf->nsect; 6840 regs->lbal = tf->lbal; 6841 regs->lbam = tf->lbam; 6842 regs->lbah = tf->lbah; 6843 regs->device = tf->device; 6844 regs->command = tf->command; 6845 regs->hob_feature = tf->hob_feature; 6846 regs->hob_nsect = tf->hob_nsect; 6847 regs->hob_lbal = tf->hob_lbal; 6848 regs->hob_lbam = tf->hob_lbam; 6849 regs->hob_lbah = tf->hob_lbah; 6850 regs->ctl = tf->ctl; 6851 } 6852 6853 /** 6854 * ipr_sata_done - done function for SATA commands 6855 * @ipr_cmd: ipr command struct 6856 * 6857 * This function is invoked by the interrupt handler for 6858 * ops generated by the SCSI mid-layer to SATA devices 6859 * 6860 * Return value: 6861 * none 6862 **/ 6863 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) 6864 { 6865 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 6866 struct ata_queued_cmd *qc = ipr_cmd->qc; 6867 struct ipr_sata_port *sata_port = qc->ap->private_data; 6868 struct ipr_resource_entry *res = sata_port->res; 6869 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 6870 6871 spin_lock(&ipr_cmd->hrrq->_lock); 6872 if (ipr_cmd->ioa_cfg->sis64) 6873 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, 6874 sizeof(struct ipr_ioasa_gata)); 6875 else 6876 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, 6877 sizeof(struct ipr_ioasa_gata)); 6878 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); 6879 6880 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) 6881 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); 6882 6883 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) 6884 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); 6885 else 6886 qc->err_mask |= ac_err_mask(sata_port->ioasa.status); 6887 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 6888 spin_unlock(&ipr_cmd->hrrq->_lock); 6889 ata_qc_complete(qc); 6890 } 6891 6892 /** 6893 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list 6894 * @ipr_cmd: ipr command struct 6895 * @qc: ATA queued command 6896 * 6897 **/ 6898 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, 6899 struct ata_queued_cmd *qc) 6900 { 6901 u32 ioadl_flags = 0; 6902 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6903 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ata_ioadl.ioadl64; 6904 struct ipr_ioadl64_desc *last_ioadl64 = NULL; 6905 int len = qc->nbytes; 6906 struct scatterlist *sg; 6907 unsigned int si; 6908 dma_addr_t dma_addr = ipr_cmd->dma_addr; 6909 6910 if (len == 0) 6911 return; 6912 6913 if (qc->dma_dir == DMA_TO_DEVICE) { 6914 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6915 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6916 } else if (qc->dma_dir == DMA_FROM_DEVICE) 6917 ioadl_flags = IPR_IOADL_FLAGS_READ; 6918 6919 ioarcb->data_transfer_length = cpu_to_be32(len); 6920 ioarcb->ioadl_len = 6921 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); 6922 ioarcb->u.sis64_addr_data.data_ioadl_addr = 6923 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl.ioadl64)); 6924 6925 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6926 ioadl64->flags = cpu_to_be32(ioadl_flags); 6927 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); 6928 ioadl64->address = cpu_to_be64(sg_dma_address(sg)); 6929 6930 last_ioadl64 = ioadl64; 6931 ioadl64++; 6932 } 6933 6934 if (likely(last_ioadl64)) 6935 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6936 } 6937 6938 /** 6939 * ipr_build_ata_ioadl - Build an ATA scatter/gather list 6940 * @ipr_cmd: ipr command struct 6941 * @qc: ATA queued command 6942 * 6943 **/ 6944 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, 6945 struct ata_queued_cmd *qc) 6946 { 6947 u32 ioadl_flags = 0; 6948 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 6949 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; 6950 struct ipr_ioadl_desc *last_ioadl = NULL; 6951 int len = qc->nbytes; 6952 struct scatterlist *sg; 6953 unsigned int si; 6954 6955 if (len == 0) 6956 return; 6957 6958 if (qc->dma_dir == DMA_TO_DEVICE) { 6959 ioadl_flags = IPR_IOADL_FLAGS_WRITE; 6960 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 6961 ioarcb->data_transfer_length = cpu_to_be32(len); 6962 ioarcb->ioadl_len = 6963 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6964 } else if (qc->dma_dir == DMA_FROM_DEVICE) { 6965 ioadl_flags = IPR_IOADL_FLAGS_READ; 6966 ioarcb->read_data_transfer_length = cpu_to_be32(len); 6967 ioarcb->read_ioadl_len = 6968 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); 6969 } 6970 6971 for_each_sg(qc->sg, sg, qc->n_elem, si) { 6972 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); 6973 ioadl->address = cpu_to_be32(sg_dma_address(sg)); 6974 6975 last_ioadl = ioadl; 6976 ioadl++; 6977 } 6978 6979 if (likely(last_ioadl)) 6980 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); 6981 } 6982 6983 /** 6984 * ipr_qc_defer - Get a free ipr_cmd 6985 * @qc: queued command 6986 * 6987 * Return value: 6988 * 0 if success 6989 **/ 6990 static int ipr_qc_defer(struct ata_queued_cmd *qc) 6991 { 6992 struct ata_port *ap = qc->ap; 6993 struct ipr_sata_port *sata_port = ap->private_data; 6994 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 6995 struct ipr_cmnd *ipr_cmd; 6996 struct ipr_hrr_queue *hrrq; 6997 int hrrq_id; 6998 6999 hrrq_id = ipr_get_hrrq_index(ioa_cfg); 7000 hrrq = &ioa_cfg->hrrq[hrrq_id]; 7001 7002 qc->lldd_task = NULL; 7003 spin_lock(&hrrq->_lock); 7004 if (unlikely(hrrq->ioa_is_dead)) { 7005 spin_unlock(&hrrq->_lock); 7006 return 0; 7007 } 7008 7009 if (unlikely(!hrrq->allow_cmds)) { 7010 spin_unlock(&hrrq->_lock); 7011 return ATA_DEFER_LINK; 7012 } 7013 7014 ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); 7015 if (ipr_cmd == NULL) { 7016 spin_unlock(&hrrq->_lock); 7017 return ATA_DEFER_LINK; 7018 } 7019 7020 qc->lldd_task = ipr_cmd; 7021 spin_unlock(&hrrq->_lock); 7022 return 0; 7023 } 7024 7025 /** 7026 * ipr_qc_issue - Issue a SATA qc to a device 7027 * @qc: queued command 7028 * 7029 * Return value: 7030 * 0 if success 7031 **/ 7032 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) 7033 { 7034 struct ata_port *ap = qc->ap; 7035 struct ipr_sata_port *sata_port = ap->private_data; 7036 struct ipr_resource_entry *res = sata_port->res; 7037 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; 7038 struct ipr_cmnd *ipr_cmd; 7039 struct ipr_ioarcb *ioarcb; 7040 struct ipr_ioarcb_ata_regs *regs; 7041 7042 if (qc->lldd_task == NULL) 7043 ipr_qc_defer(qc); 7044 7045 ipr_cmd = qc->lldd_task; 7046 if (ipr_cmd == NULL) 7047 return AC_ERR_SYSTEM; 7048 7049 qc->lldd_task = NULL; 7050 spin_lock(&ipr_cmd->hrrq->_lock); 7051 if (unlikely(!ipr_cmd->hrrq->allow_cmds || 7052 ipr_cmd->hrrq->ioa_is_dead)) { 7053 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 7054 spin_unlock(&ipr_cmd->hrrq->_lock); 7055 return AC_ERR_SYSTEM; 7056 } 7057 7058 ipr_init_ipr_cmnd(ipr_cmd, ipr_lock_and_done); 7059 ioarcb = &ipr_cmd->ioarcb; 7060 7061 if (ioa_cfg->sis64) { 7062 regs = &ipr_cmd->i.ata_ioadl.regs; 7063 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); 7064 } else 7065 regs = &ioarcb->u.add_data.u.regs; 7066 7067 memset(regs, 0, sizeof(*regs)); 7068 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); 7069 7070 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 7071 ipr_cmd->qc = qc; 7072 ipr_cmd->done = ipr_sata_done; 7073 ipr_cmd->ioarcb.res_handle = res->res_handle; 7074 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; 7075 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; 7076 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; 7077 ipr_cmd->dma_use_sg = qc->n_elem; 7078 7079 if (ioa_cfg->sis64) 7080 ipr_build_ata_ioadl64(ipr_cmd, qc); 7081 else 7082 ipr_build_ata_ioadl(ipr_cmd, qc); 7083 7084 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; 7085 ipr_copy_sata_tf(regs, &qc->tf); 7086 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); 7087 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); 7088 7089 switch (qc->tf.protocol) { 7090 case ATA_PROT_NODATA: 7091 case ATA_PROT_PIO: 7092 break; 7093 7094 case ATA_PROT_DMA: 7095 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 7096 break; 7097 7098 case ATAPI_PROT_PIO: 7099 case ATAPI_PROT_NODATA: 7100 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 7101 break; 7102 7103 case ATAPI_PROT_DMA: 7104 regs->flags |= IPR_ATA_FLAG_PACKET_CMD; 7105 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; 7106 break; 7107 7108 default: 7109 WARN_ON(1); 7110 spin_unlock(&ipr_cmd->hrrq->_lock); 7111 return AC_ERR_INVALID; 7112 } 7113 7114 ipr_send_command(ipr_cmd); 7115 spin_unlock(&ipr_cmd->hrrq->_lock); 7116 7117 return 0; 7118 } 7119 7120 /** 7121 * ipr_qc_fill_rtf - Read result TF 7122 * @qc: ATA queued command 7123 * 7124 * Return value: 7125 * true 7126 **/ 7127 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) 7128 { 7129 struct ipr_sata_port *sata_port = qc->ap->private_data; 7130 struct ipr_ioasa_gata *g = &sata_port->ioasa; 7131 struct ata_taskfile *tf = &qc->result_tf; 7132 7133 tf->feature = g->error; 7134 tf->nsect = g->nsect; 7135 tf->lbal = g->lbal; 7136 tf->lbam = g->lbam; 7137 tf->lbah = g->lbah; 7138 tf->device = g->device; 7139 tf->command = g->status; 7140 tf->hob_nsect = g->hob_nsect; 7141 tf->hob_lbal = g->hob_lbal; 7142 tf->hob_lbam = g->hob_lbam; 7143 tf->hob_lbah = g->hob_lbah; 7144 7145 return true; 7146 } 7147 7148 static struct ata_port_operations ipr_sata_ops = { 7149 .phy_reset = ipr_ata_phy_reset, 7150 .hardreset = ipr_sata_reset, 7151 .post_internal_cmd = ipr_ata_post_internal, 7152 .qc_prep = ata_noop_qc_prep, 7153 .qc_defer = ipr_qc_defer, 7154 .qc_issue = ipr_qc_issue, 7155 .qc_fill_rtf = ipr_qc_fill_rtf, 7156 .port_start = ata_sas_port_start, 7157 .port_stop = ata_sas_port_stop 7158 }; 7159 7160 static struct ata_port_info sata_port_info = { 7161 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA | 7162 ATA_FLAG_SAS_HOST, 7163 .pio_mask = ATA_PIO4_ONLY, 7164 .mwdma_mask = ATA_MWDMA2, 7165 .udma_mask = ATA_UDMA6, 7166 .port_ops = &ipr_sata_ops 7167 }; 7168 7169 #ifdef CONFIG_PPC_PSERIES 7170 static const u16 ipr_blocked_processors[] = { 7171 PVR_NORTHSTAR, 7172 PVR_PULSAR, 7173 PVR_POWER4, 7174 PVR_ICESTAR, 7175 PVR_SSTAR, 7176 PVR_POWER4p, 7177 PVR_630, 7178 PVR_630p 7179 }; 7180 7181 /** 7182 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware 7183 * @ioa_cfg: ioa cfg struct 7184 * 7185 * Adapters that use Gemstone revision < 3.1 do not work reliably on 7186 * certain pSeries hardware. This function determines if the given 7187 * adapter is in one of these confgurations or not. 7188 * 7189 * Return value: 7190 * 1 if adapter is not supported / 0 if adapter is supported 7191 **/ 7192 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) 7193 { 7194 int i; 7195 7196 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { 7197 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) { 7198 if (pvr_version_is(ipr_blocked_processors[i])) 7199 return 1; 7200 } 7201 } 7202 return 0; 7203 } 7204 #else 7205 #define ipr_invalid_adapter(ioa_cfg) 0 7206 #endif 7207 7208 /** 7209 * ipr_ioa_bringdown_done - IOA bring down completion. 7210 * @ipr_cmd: ipr command struct 7211 * 7212 * This function processes the completion of an adapter bring down. 7213 * It wakes any reset sleepers. 7214 * 7215 * Return value: 7216 * IPR_RC_JOB_RETURN 7217 **/ 7218 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) 7219 { 7220 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7221 int i; 7222 7223 ENTER; 7224 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { 7225 ipr_trace; 7226 ioa_cfg->scsi_unblock = 1; 7227 schedule_work(&ioa_cfg->work_q); 7228 } 7229 7230 ioa_cfg->in_reset_reload = 0; 7231 ioa_cfg->reset_retries = 0; 7232 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 7233 spin_lock(&ioa_cfg->hrrq[i]._lock); 7234 ioa_cfg->hrrq[i].ioa_is_dead = 1; 7235 spin_unlock(&ioa_cfg->hrrq[i]._lock); 7236 } 7237 wmb(); 7238 7239 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 7240 wake_up_all(&ioa_cfg->reset_wait_q); 7241 LEAVE; 7242 7243 return IPR_RC_JOB_RETURN; 7244 } 7245 7246 /** 7247 * ipr_ioa_reset_done - IOA reset completion. 7248 * @ipr_cmd: ipr command struct 7249 * 7250 * This function processes the completion of an adapter reset. 7251 * It schedules any necessary mid-layer add/removes and 7252 * wakes any reset sleepers. 7253 * 7254 * Return value: 7255 * IPR_RC_JOB_RETURN 7256 **/ 7257 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) 7258 { 7259 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7260 struct ipr_resource_entry *res; 7261 int j; 7262 7263 ENTER; 7264 ioa_cfg->in_reset_reload = 0; 7265 for (j = 0; j < ioa_cfg->hrrq_num; j++) { 7266 spin_lock(&ioa_cfg->hrrq[j]._lock); 7267 ioa_cfg->hrrq[j].allow_cmds = 1; 7268 spin_unlock(&ioa_cfg->hrrq[j]._lock); 7269 } 7270 wmb(); 7271 ioa_cfg->reset_cmd = NULL; 7272 ioa_cfg->doorbell |= IPR_RUNTIME_RESET; 7273 7274 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { 7275 if (res->add_to_ml || res->del_from_ml) { 7276 ipr_trace; 7277 break; 7278 } 7279 } 7280 schedule_work(&ioa_cfg->work_q); 7281 7282 for (j = 0; j < IPR_NUM_HCAMS; j++) { 7283 list_del_init(&ioa_cfg->hostrcb[j]->queue); 7284 if (j < IPR_NUM_LOG_HCAMS) 7285 ipr_send_hcam(ioa_cfg, 7286 IPR_HCAM_CDB_OP_CODE_LOG_DATA, 7287 ioa_cfg->hostrcb[j]); 7288 else 7289 ipr_send_hcam(ioa_cfg, 7290 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, 7291 ioa_cfg->hostrcb[j]); 7292 } 7293 7294 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); 7295 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); 7296 7297 ioa_cfg->reset_retries = 0; 7298 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 7299 wake_up_all(&ioa_cfg->reset_wait_q); 7300 7301 ioa_cfg->scsi_unblock = 1; 7302 schedule_work(&ioa_cfg->work_q); 7303 LEAVE; 7304 return IPR_RC_JOB_RETURN; 7305 } 7306 7307 /** 7308 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer 7309 * @supported_dev: supported device struct 7310 * @vpids: vendor product id struct 7311 * 7312 * Return value: 7313 * none 7314 **/ 7315 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, 7316 struct ipr_std_inq_vpids *vpids) 7317 { 7318 memset(supported_dev, 0, sizeof(struct ipr_supported_device)); 7319 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); 7320 supported_dev->num_records = 1; 7321 supported_dev->data_length = 7322 cpu_to_be16(sizeof(struct ipr_supported_device)); 7323 supported_dev->reserved = 0; 7324 } 7325 7326 /** 7327 * ipr_set_supported_devs - Send Set Supported Devices for a device 7328 * @ipr_cmd: ipr command struct 7329 * 7330 * This function sends a Set Supported Devices to the adapter 7331 * 7332 * Return value: 7333 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7334 **/ 7335 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) 7336 { 7337 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7338 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; 7339 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7340 struct ipr_resource_entry *res = ipr_cmd->u.res; 7341 7342 ipr_cmd->job_step = ipr_ioa_reset_done; 7343 7344 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { 7345 if (!ipr_is_scsi_disk(res)) 7346 continue; 7347 7348 ipr_cmd->u.res = res; 7349 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); 7350 7351 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7352 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 7353 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7354 7355 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; 7356 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; 7357 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; 7358 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; 7359 7360 ipr_init_ioadl(ipr_cmd, 7361 ioa_cfg->vpd_cbs_dma + 7362 offsetof(struct ipr_misc_cbs, supp_dev), 7363 sizeof(struct ipr_supported_device), 7364 IPR_IOADL_FLAGS_WRITE_LAST); 7365 7366 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7367 IPR_SET_SUP_DEVICE_TIMEOUT); 7368 7369 if (!ioa_cfg->sis64) 7370 ipr_cmd->job_step = ipr_set_supported_devs; 7371 LEAVE; 7372 return IPR_RC_JOB_RETURN; 7373 } 7374 7375 LEAVE; 7376 return IPR_RC_JOB_CONTINUE; 7377 } 7378 7379 /** 7380 * ipr_get_mode_page - Locate specified mode page 7381 * @mode_pages: mode page buffer 7382 * @page_code: page code to find 7383 * @len: minimum required length for mode page 7384 * 7385 * Return value: 7386 * pointer to mode page / NULL on failure 7387 **/ 7388 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, 7389 u32 page_code, u32 len) 7390 { 7391 struct ipr_mode_page_hdr *mode_hdr; 7392 u32 page_length; 7393 u32 length; 7394 7395 if (!mode_pages || (mode_pages->hdr.length == 0)) 7396 return NULL; 7397 7398 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; 7399 mode_hdr = (struct ipr_mode_page_hdr *) 7400 (mode_pages->data + mode_pages->hdr.block_desc_len); 7401 7402 while (length) { 7403 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { 7404 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) 7405 return mode_hdr; 7406 break; 7407 } else { 7408 page_length = (sizeof(struct ipr_mode_page_hdr) + 7409 mode_hdr->page_length); 7410 length -= page_length; 7411 mode_hdr = (struct ipr_mode_page_hdr *) 7412 ((unsigned long)mode_hdr + page_length); 7413 } 7414 } 7415 return NULL; 7416 } 7417 7418 /** 7419 * ipr_check_term_power - Check for term power errors 7420 * @ioa_cfg: ioa config struct 7421 * @mode_pages: IOAFP mode pages buffer 7422 * 7423 * Check the IOAFP's mode page 28 for term power errors 7424 * 7425 * Return value: 7426 * nothing 7427 **/ 7428 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, 7429 struct ipr_mode_pages *mode_pages) 7430 { 7431 int i; 7432 int entry_length; 7433 struct ipr_dev_bus_entry *bus; 7434 struct ipr_mode_page28 *mode_page; 7435 7436 mode_page = ipr_get_mode_page(mode_pages, 0x28, 7437 sizeof(struct ipr_mode_page28)); 7438 7439 entry_length = mode_page->entry_length; 7440 7441 bus = mode_page->bus; 7442 7443 for (i = 0; i < mode_page->num_entries; i++) { 7444 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { 7445 dev_err(&ioa_cfg->pdev->dev, 7446 "Term power is absent on scsi bus %d\n", 7447 bus->res_addr.bus); 7448 } 7449 7450 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); 7451 } 7452 } 7453 7454 /** 7455 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table 7456 * @ioa_cfg: ioa config struct 7457 * 7458 * Looks through the config table checking for SES devices. If 7459 * the SES device is in the SES table indicating a maximum SCSI 7460 * bus speed, the speed is limited for the bus. 7461 * 7462 * Return value: 7463 * none 7464 **/ 7465 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) 7466 { 7467 u32 max_xfer_rate; 7468 int i; 7469 7470 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 7471 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, 7472 ioa_cfg->bus_attr[i].bus_width); 7473 7474 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) 7475 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; 7476 } 7477 } 7478 7479 /** 7480 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 7481 * @ioa_cfg: ioa config struct 7482 * @mode_pages: mode page 28 buffer 7483 * 7484 * Updates mode page 28 based on driver configuration 7485 * 7486 * Return value: 7487 * none 7488 **/ 7489 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, 7490 struct ipr_mode_pages *mode_pages) 7491 { 7492 int i, entry_length; 7493 struct ipr_dev_bus_entry *bus; 7494 struct ipr_bus_attributes *bus_attr; 7495 struct ipr_mode_page28 *mode_page; 7496 7497 mode_page = ipr_get_mode_page(mode_pages, 0x28, 7498 sizeof(struct ipr_mode_page28)); 7499 7500 entry_length = mode_page->entry_length; 7501 7502 /* Loop for each device bus entry */ 7503 for (i = 0, bus = mode_page->bus; 7504 i < mode_page->num_entries; 7505 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { 7506 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { 7507 dev_err(&ioa_cfg->pdev->dev, 7508 "Invalid resource address reported: 0x%08X\n", 7509 IPR_GET_PHYS_LOC(bus->res_addr)); 7510 continue; 7511 } 7512 7513 bus_attr = &ioa_cfg->bus_attr[i]; 7514 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; 7515 bus->bus_width = bus_attr->bus_width; 7516 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); 7517 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; 7518 if (bus_attr->qas_enabled) 7519 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; 7520 else 7521 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; 7522 } 7523 } 7524 7525 /** 7526 * ipr_build_mode_select - Build a mode select command 7527 * @ipr_cmd: ipr command struct 7528 * @res_handle: resource handle to send command to 7529 * @parm: Byte 2 of Mode Sense command 7530 * @dma_addr: DMA buffer address 7531 * @xfer_len: data transfer length 7532 * 7533 * Return value: 7534 * none 7535 **/ 7536 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, 7537 __be32 res_handle, u8 parm, 7538 dma_addr_t dma_addr, u8 xfer_len) 7539 { 7540 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7541 7542 ioarcb->res_handle = res_handle; 7543 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7544 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; 7545 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; 7546 ioarcb->cmd_pkt.cdb[1] = parm; 7547 ioarcb->cmd_pkt.cdb[4] = xfer_len; 7548 7549 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); 7550 } 7551 7552 /** 7553 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA 7554 * @ipr_cmd: ipr command struct 7555 * 7556 * This function sets up the SCSI bus attributes and sends 7557 * a Mode Select for Page 28 to activate them. 7558 * 7559 * Return value: 7560 * IPR_RC_JOB_RETURN 7561 **/ 7562 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) 7563 { 7564 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7565 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 7566 int length; 7567 7568 ENTER; 7569 ipr_scsi_bus_speed_limit(ioa_cfg); 7570 ipr_check_term_power(ioa_cfg, mode_pages); 7571 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); 7572 length = mode_pages->hdr.length + 1; 7573 mode_pages->hdr.length = 0; 7574 7575 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 7576 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 7577 length); 7578 7579 ipr_cmd->job_step = ipr_set_supported_devs; 7580 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 7581 struct ipr_resource_entry, queue); 7582 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7583 7584 LEAVE; 7585 return IPR_RC_JOB_RETURN; 7586 } 7587 7588 /** 7589 * ipr_build_mode_sense - Builds a mode sense command 7590 * @ipr_cmd: ipr command struct 7591 * @res: resource entry struct 7592 * @parm: Byte 2 of mode sense command 7593 * @dma_addr: DMA address of mode sense buffer 7594 * @xfer_len: Size of DMA buffer 7595 * 7596 * Return value: 7597 * none 7598 **/ 7599 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, 7600 __be32 res_handle, 7601 u8 parm, dma_addr_t dma_addr, u8 xfer_len) 7602 { 7603 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7604 7605 ioarcb->res_handle = res_handle; 7606 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; 7607 ioarcb->cmd_pkt.cdb[2] = parm; 7608 ioarcb->cmd_pkt.cdb[4] = xfer_len; 7609 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7610 7611 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 7612 } 7613 7614 /** 7615 * ipr_reset_cmd_failed - Handle failure of IOA reset command 7616 * @ipr_cmd: ipr command struct 7617 * 7618 * This function handles the failure of an IOA bringup command. 7619 * 7620 * Return value: 7621 * IPR_RC_JOB_RETURN 7622 **/ 7623 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) 7624 { 7625 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7626 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7627 7628 dev_err(&ioa_cfg->pdev->dev, 7629 "0x%02X failed with IOASC: 0x%08X\n", 7630 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); 7631 7632 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 7633 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 7634 return IPR_RC_JOB_RETURN; 7635 } 7636 7637 /** 7638 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense 7639 * @ipr_cmd: ipr command struct 7640 * 7641 * This function handles the failure of a Mode Sense to the IOAFP. 7642 * Some adapters do not handle all mode pages. 7643 * 7644 * Return value: 7645 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7646 **/ 7647 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) 7648 { 7649 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7650 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7651 7652 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 7653 ipr_cmd->job_step = ipr_set_supported_devs; 7654 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, 7655 struct ipr_resource_entry, queue); 7656 return IPR_RC_JOB_CONTINUE; 7657 } 7658 7659 return ipr_reset_cmd_failed(ipr_cmd); 7660 } 7661 7662 /** 7663 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA 7664 * @ipr_cmd: ipr command struct 7665 * 7666 * This function send a Page 28 mode sense to the IOA to 7667 * retrieve SCSI bus attributes. 7668 * 7669 * Return value: 7670 * IPR_RC_JOB_RETURN 7671 **/ 7672 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) 7673 { 7674 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7675 7676 ENTER; 7677 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 7678 0x28, ioa_cfg->vpd_cbs_dma + 7679 offsetof(struct ipr_misc_cbs, mode_pages), 7680 sizeof(struct ipr_mode_pages)); 7681 7682 ipr_cmd->job_step = ipr_ioafp_mode_select_page28; 7683 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; 7684 7685 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7686 7687 LEAVE; 7688 return IPR_RC_JOB_RETURN; 7689 } 7690 7691 /** 7692 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA 7693 * @ipr_cmd: ipr command struct 7694 * 7695 * This function enables dual IOA RAID support if possible. 7696 * 7697 * Return value: 7698 * IPR_RC_JOB_RETURN 7699 **/ 7700 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) 7701 { 7702 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7703 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; 7704 struct ipr_mode_page24 *mode_page; 7705 int length; 7706 7707 ENTER; 7708 mode_page = ipr_get_mode_page(mode_pages, 0x24, 7709 sizeof(struct ipr_mode_page24)); 7710 7711 if (mode_page) 7712 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; 7713 7714 length = mode_pages->hdr.length + 1; 7715 mode_pages->hdr.length = 0; 7716 7717 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, 7718 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), 7719 length); 7720 7721 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 7722 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7723 7724 LEAVE; 7725 return IPR_RC_JOB_RETURN; 7726 } 7727 7728 /** 7729 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense 7730 * @ipr_cmd: ipr command struct 7731 * 7732 * This function handles the failure of a Mode Sense to the IOAFP. 7733 * Some adapters do not handle all mode pages. 7734 * 7735 * Return value: 7736 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 7737 **/ 7738 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) 7739 { 7740 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7741 7742 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { 7743 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 7744 return IPR_RC_JOB_CONTINUE; 7745 } 7746 7747 return ipr_reset_cmd_failed(ipr_cmd); 7748 } 7749 7750 /** 7751 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA 7752 * @ipr_cmd: ipr command struct 7753 * 7754 * This function send a mode sense to the IOA to retrieve 7755 * the IOA Advanced Function Control mode page. 7756 * 7757 * Return value: 7758 * IPR_RC_JOB_RETURN 7759 **/ 7760 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) 7761 { 7762 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7763 7764 ENTER; 7765 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 7766 0x24, ioa_cfg->vpd_cbs_dma + 7767 offsetof(struct ipr_misc_cbs, mode_pages), 7768 sizeof(struct ipr_mode_pages)); 7769 7770 ipr_cmd->job_step = ipr_ioafp_mode_select_page24; 7771 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; 7772 7773 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7774 7775 LEAVE; 7776 return IPR_RC_JOB_RETURN; 7777 } 7778 7779 /** 7780 * ipr_init_res_table - Initialize the resource table 7781 * @ipr_cmd: ipr command struct 7782 * 7783 * This function looks through the existing resource table, comparing 7784 * it with the config table. This function will take care of old/new 7785 * devices and schedule adding/removing them from the mid-layer 7786 * as appropriate. 7787 * 7788 * Return value: 7789 * IPR_RC_JOB_CONTINUE 7790 **/ 7791 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) 7792 { 7793 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7794 struct ipr_resource_entry *res, *temp; 7795 struct ipr_config_table_entry_wrapper cfgtew; 7796 int entries, found, flag, i; 7797 LIST_HEAD(old_res); 7798 7799 ENTER; 7800 if (ioa_cfg->sis64) 7801 flag = ioa_cfg->u.cfg_table64->hdr64.flags; 7802 else 7803 flag = ioa_cfg->u.cfg_table->hdr.flags; 7804 7805 if (flag & IPR_UCODE_DOWNLOAD_REQ) 7806 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); 7807 7808 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) 7809 list_move_tail(&res->queue, &old_res); 7810 7811 if (ioa_cfg->sis64) 7812 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); 7813 else 7814 entries = ioa_cfg->u.cfg_table->hdr.num_entries; 7815 7816 for (i = 0; i < entries; i++) { 7817 if (ioa_cfg->sis64) 7818 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; 7819 else 7820 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; 7821 found = 0; 7822 7823 list_for_each_entry_safe(res, temp, &old_res, queue) { 7824 if (ipr_is_same_device(res, &cfgtew)) { 7825 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 7826 found = 1; 7827 break; 7828 } 7829 } 7830 7831 if (!found) { 7832 if (list_empty(&ioa_cfg->free_res_q)) { 7833 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); 7834 break; 7835 } 7836 7837 found = 1; 7838 res = list_entry(ioa_cfg->free_res_q.next, 7839 struct ipr_resource_entry, queue); 7840 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 7841 ipr_init_res_entry(res, &cfgtew); 7842 res->add_to_ml = 1; 7843 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) 7844 res->sdev->allow_restart = 1; 7845 7846 if (found) 7847 ipr_update_res_entry(res, &cfgtew); 7848 } 7849 7850 list_for_each_entry_safe(res, temp, &old_res, queue) { 7851 if (res->sdev) { 7852 res->del_from_ml = 1; 7853 res->res_handle = IPR_INVALID_RES_HANDLE; 7854 list_move_tail(&res->queue, &ioa_cfg->used_res_q); 7855 } 7856 } 7857 7858 list_for_each_entry_safe(res, temp, &old_res, queue) { 7859 ipr_clear_res_target(res); 7860 list_move_tail(&res->queue, &ioa_cfg->free_res_q); 7861 } 7862 7863 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 7864 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; 7865 else 7866 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; 7867 7868 LEAVE; 7869 return IPR_RC_JOB_CONTINUE; 7870 } 7871 7872 /** 7873 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. 7874 * @ipr_cmd: ipr command struct 7875 * 7876 * This function sends a Query IOA Configuration command 7877 * to the adapter to retrieve the IOA configuration table. 7878 * 7879 * Return value: 7880 * IPR_RC_JOB_RETURN 7881 **/ 7882 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) 7883 { 7884 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7885 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7886 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; 7887 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 7888 7889 ENTER; 7890 if (cap->cap & IPR_CAP_DUAL_IOA_RAID) 7891 ioa_cfg->dual_raid = 1; 7892 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", 7893 ucode_vpd->major_release, ucode_vpd->card_type, 7894 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); 7895 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7896 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7897 7898 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; 7899 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; 7900 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; 7901 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; 7902 7903 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, 7904 IPR_IOADL_FLAGS_READ_LAST); 7905 7906 ipr_cmd->job_step = ipr_init_res_table; 7907 7908 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7909 7910 LEAVE; 7911 return IPR_RC_JOB_RETURN; 7912 } 7913 7914 static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd) 7915 { 7916 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 7917 7918 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) 7919 return IPR_RC_JOB_CONTINUE; 7920 7921 return ipr_reset_cmd_failed(ipr_cmd); 7922 } 7923 7924 static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd, 7925 __be32 res_handle, u8 sa_code) 7926 { 7927 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7928 7929 ioarcb->res_handle = res_handle; 7930 ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION; 7931 ioarcb->cmd_pkt.cdb[1] = sa_code; 7932 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 7933 } 7934 7935 /** 7936 * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service 7937 * action 7938 * 7939 * Return value: 7940 * none 7941 **/ 7942 static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd) 7943 { 7944 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7945 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 7946 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; 7947 7948 ENTER; 7949 7950 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; 7951 7952 if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) { 7953 ipr_build_ioa_service_action(ipr_cmd, 7954 cpu_to_be32(IPR_IOA_RES_HANDLE), 7955 IPR_IOA_SA_CHANGE_CACHE_PARAMS); 7956 7957 ioarcb->cmd_pkt.cdb[2] = 0x40; 7958 7959 ipr_cmd->job_step_failed = ipr_ioa_service_action_failed; 7960 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 7961 IPR_SET_SUP_DEVICE_TIMEOUT); 7962 7963 LEAVE; 7964 return IPR_RC_JOB_RETURN; 7965 } 7966 7967 LEAVE; 7968 return IPR_RC_JOB_CONTINUE; 7969 } 7970 7971 /** 7972 * ipr_ioafp_inquiry - Send an Inquiry to the adapter. 7973 * @ipr_cmd: ipr command struct 7974 * 7975 * This utility function sends an inquiry to the adapter. 7976 * 7977 * Return value: 7978 * none 7979 **/ 7980 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, 7981 dma_addr_t dma_addr, u8 xfer_len) 7982 { 7983 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 7984 7985 ENTER; 7986 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 7987 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 7988 7989 ioarcb->cmd_pkt.cdb[0] = INQUIRY; 7990 ioarcb->cmd_pkt.cdb[1] = flags; 7991 ioarcb->cmd_pkt.cdb[2] = page; 7992 ioarcb->cmd_pkt.cdb[4] = xfer_len; 7993 7994 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); 7995 7996 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); 7997 LEAVE; 7998 } 7999 8000 /** 8001 * ipr_inquiry_page_supported - Is the given inquiry page supported 8002 * @page0: inquiry page 0 buffer 8003 * @page: page code. 8004 * 8005 * This function determines if the specified inquiry page is supported. 8006 * 8007 * Return value: 8008 * 1 if page is supported / 0 if not 8009 **/ 8010 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) 8011 { 8012 int i; 8013 8014 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) 8015 if (page0->page[i] == page) 8016 return 1; 8017 8018 return 0; 8019 } 8020 8021 /** 8022 * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter. 8023 * @ipr_cmd: ipr command struct 8024 * 8025 * This function sends a Page 0xC4 inquiry to the adapter 8026 * to retrieve software VPD information. 8027 * 8028 * Return value: 8029 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8030 **/ 8031 static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd) 8032 { 8033 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8034 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 8035 struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; 8036 8037 ENTER; 8038 ipr_cmd->job_step = ipr_ioafp_set_caching_parameters; 8039 memset(pageC4, 0, sizeof(*pageC4)); 8040 8041 if (ipr_inquiry_page_supported(page0, 0xC4)) { 8042 ipr_ioafp_inquiry(ipr_cmd, 1, 0xC4, 8043 (ioa_cfg->vpd_cbs_dma 8044 + offsetof(struct ipr_misc_cbs, 8045 pageC4_data)), 8046 sizeof(struct ipr_inquiry_pageC4)); 8047 return IPR_RC_JOB_RETURN; 8048 } 8049 8050 LEAVE; 8051 return IPR_RC_JOB_CONTINUE; 8052 } 8053 8054 /** 8055 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. 8056 * @ipr_cmd: ipr command struct 8057 * 8058 * This function sends a Page 0xD0 inquiry to the adapter 8059 * to retrieve adapter capabilities. 8060 * 8061 * Return value: 8062 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8063 **/ 8064 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) 8065 { 8066 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8067 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; 8068 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; 8069 8070 ENTER; 8071 ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry; 8072 memset(cap, 0, sizeof(*cap)); 8073 8074 if (ipr_inquiry_page_supported(page0, 0xD0)) { 8075 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, 8076 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), 8077 sizeof(struct ipr_inquiry_cap)); 8078 return IPR_RC_JOB_RETURN; 8079 } 8080 8081 LEAVE; 8082 return IPR_RC_JOB_CONTINUE; 8083 } 8084 8085 /** 8086 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. 8087 * @ipr_cmd: ipr command struct 8088 * 8089 * This function sends a Page 3 inquiry to the adapter 8090 * to retrieve software VPD information. 8091 * 8092 * Return value: 8093 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8094 **/ 8095 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) 8096 { 8097 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8098 8099 ENTER; 8100 8101 ipr_cmd->job_step = ipr_ioafp_cap_inquiry; 8102 8103 ipr_ioafp_inquiry(ipr_cmd, 1, 3, 8104 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), 8105 sizeof(struct ipr_inquiry_page3)); 8106 8107 LEAVE; 8108 return IPR_RC_JOB_RETURN; 8109 } 8110 8111 /** 8112 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. 8113 * @ipr_cmd: ipr command struct 8114 * 8115 * This function sends a Page 0 inquiry to the adapter 8116 * to retrieve supported inquiry pages. 8117 * 8118 * Return value: 8119 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8120 **/ 8121 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) 8122 { 8123 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8124 char type[5]; 8125 8126 ENTER; 8127 8128 /* Grab the type out of the VPD and store it away */ 8129 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); 8130 type[4] = '\0'; 8131 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); 8132 8133 if (ipr_invalid_adapter(ioa_cfg)) { 8134 dev_err(&ioa_cfg->pdev->dev, 8135 "Adapter not supported in this hardware configuration.\n"); 8136 8137 if (!ipr_testmode) { 8138 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; 8139 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 8140 list_add_tail(&ipr_cmd->queue, 8141 &ioa_cfg->hrrq->hrrq_free_q); 8142 return IPR_RC_JOB_RETURN; 8143 } 8144 } 8145 8146 ipr_cmd->job_step = ipr_ioafp_page3_inquiry; 8147 8148 ipr_ioafp_inquiry(ipr_cmd, 1, 0, 8149 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), 8150 sizeof(struct ipr_inquiry_page0)); 8151 8152 LEAVE; 8153 return IPR_RC_JOB_RETURN; 8154 } 8155 8156 /** 8157 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. 8158 * @ipr_cmd: ipr command struct 8159 * 8160 * This function sends a standard inquiry to the adapter. 8161 * 8162 * Return value: 8163 * IPR_RC_JOB_RETURN 8164 **/ 8165 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) 8166 { 8167 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8168 8169 ENTER; 8170 ipr_cmd->job_step = ipr_ioafp_page0_inquiry; 8171 8172 ipr_ioafp_inquiry(ipr_cmd, 0, 0, 8173 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), 8174 sizeof(struct ipr_ioa_vpd)); 8175 8176 LEAVE; 8177 return IPR_RC_JOB_RETURN; 8178 } 8179 8180 /** 8181 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. 8182 * @ipr_cmd: ipr command struct 8183 * 8184 * This function send an Identify Host Request Response Queue 8185 * command to establish the HRRQ with the adapter. 8186 * 8187 * Return value: 8188 * IPR_RC_JOB_RETURN 8189 **/ 8190 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) 8191 { 8192 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8193 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; 8194 struct ipr_hrr_queue *hrrq; 8195 8196 ENTER; 8197 ipr_cmd->job_step = ipr_ioafp_std_inquiry; 8198 if (ioa_cfg->identify_hrrq_index == 0) 8199 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); 8200 8201 if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) { 8202 hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index]; 8203 8204 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; 8205 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 8206 8207 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 8208 if (ioa_cfg->sis64) 8209 ioarcb->cmd_pkt.cdb[1] = 0x1; 8210 8211 if (ioa_cfg->nvectors == 1) 8212 ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE; 8213 else 8214 ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE; 8215 8216 ioarcb->cmd_pkt.cdb[2] = 8217 ((u64) hrrq->host_rrq_dma >> 24) & 0xff; 8218 ioarcb->cmd_pkt.cdb[3] = 8219 ((u64) hrrq->host_rrq_dma >> 16) & 0xff; 8220 ioarcb->cmd_pkt.cdb[4] = 8221 ((u64) hrrq->host_rrq_dma >> 8) & 0xff; 8222 ioarcb->cmd_pkt.cdb[5] = 8223 ((u64) hrrq->host_rrq_dma) & 0xff; 8224 ioarcb->cmd_pkt.cdb[7] = 8225 ((sizeof(u32) * hrrq->size) >> 8) & 0xff; 8226 ioarcb->cmd_pkt.cdb[8] = 8227 (sizeof(u32) * hrrq->size) & 0xff; 8228 8229 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) 8230 ioarcb->cmd_pkt.cdb[9] = 8231 ioa_cfg->identify_hrrq_index; 8232 8233 if (ioa_cfg->sis64) { 8234 ioarcb->cmd_pkt.cdb[10] = 8235 ((u64) hrrq->host_rrq_dma >> 56) & 0xff; 8236 ioarcb->cmd_pkt.cdb[11] = 8237 ((u64) hrrq->host_rrq_dma >> 48) & 0xff; 8238 ioarcb->cmd_pkt.cdb[12] = 8239 ((u64) hrrq->host_rrq_dma >> 40) & 0xff; 8240 ioarcb->cmd_pkt.cdb[13] = 8241 ((u64) hrrq->host_rrq_dma >> 32) & 0xff; 8242 } 8243 8244 if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) 8245 ioarcb->cmd_pkt.cdb[14] = 8246 ioa_cfg->identify_hrrq_index; 8247 8248 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 8249 IPR_INTERNAL_TIMEOUT); 8250 8251 if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) 8252 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 8253 8254 LEAVE; 8255 return IPR_RC_JOB_RETURN; 8256 } 8257 8258 LEAVE; 8259 return IPR_RC_JOB_CONTINUE; 8260 } 8261 8262 /** 8263 * ipr_reset_timer_done - Adapter reset timer function 8264 * @ipr_cmd: ipr command struct 8265 * 8266 * Description: This function is used in adapter reset processing 8267 * for timing events. If the reset_cmd pointer in the IOA 8268 * config struct is not this adapter's we are doing nested 8269 * resets and fail_all_ops will take care of freeing the 8270 * command block. 8271 * 8272 * Return value: 8273 * none 8274 **/ 8275 static void ipr_reset_timer_done(struct timer_list *t) 8276 { 8277 struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); 8278 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8279 unsigned long lock_flags = 0; 8280 8281 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8282 8283 if (ioa_cfg->reset_cmd == ipr_cmd) { 8284 list_del(&ipr_cmd->queue); 8285 ipr_cmd->done(ipr_cmd); 8286 } 8287 8288 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8289 } 8290 8291 /** 8292 * ipr_reset_start_timer - Start a timer for adapter reset job 8293 * @ipr_cmd: ipr command struct 8294 * @timeout: timeout value 8295 * 8296 * Description: This function is used in adapter reset processing 8297 * for timing events. If the reset_cmd pointer in the IOA 8298 * config struct is not this adapter's we are doing nested 8299 * resets and fail_all_ops will take care of freeing the 8300 * command block. 8301 * 8302 * Return value: 8303 * none 8304 **/ 8305 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, 8306 unsigned long timeout) 8307 { 8308 8309 ENTER; 8310 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 8311 ipr_cmd->done = ipr_reset_ioa_job; 8312 8313 ipr_cmd->timer.expires = jiffies + timeout; 8314 ipr_cmd->timer.function = ipr_reset_timer_done; 8315 add_timer(&ipr_cmd->timer); 8316 } 8317 8318 /** 8319 * ipr_init_ioa_mem - Initialize ioa_cfg control block 8320 * @ioa_cfg: ioa cfg struct 8321 * 8322 * Return value: 8323 * nothing 8324 **/ 8325 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) 8326 { 8327 struct ipr_hrr_queue *hrrq; 8328 8329 for_each_hrrq(hrrq, ioa_cfg) { 8330 spin_lock(&hrrq->_lock); 8331 memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size); 8332 8333 /* Initialize Host RRQ pointers */ 8334 hrrq->hrrq_start = hrrq->host_rrq; 8335 hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1]; 8336 hrrq->hrrq_curr = hrrq->hrrq_start; 8337 hrrq->toggle_bit = 1; 8338 spin_unlock(&hrrq->_lock); 8339 } 8340 wmb(); 8341 8342 ioa_cfg->identify_hrrq_index = 0; 8343 if (ioa_cfg->hrrq_num == 1) 8344 atomic_set(&ioa_cfg->hrrq_index, 0); 8345 else 8346 atomic_set(&ioa_cfg->hrrq_index, 1); 8347 8348 /* Zero out config table */ 8349 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); 8350 } 8351 8352 /** 8353 * ipr_reset_next_stage - Process IPL stage change based on feedback register. 8354 * @ipr_cmd: ipr command struct 8355 * 8356 * Return value: 8357 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8358 **/ 8359 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) 8360 { 8361 unsigned long stage, stage_time; 8362 u32 feedback; 8363 volatile u32 int_reg; 8364 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8365 u64 maskval = 0; 8366 8367 feedback = readl(ioa_cfg->regs.init_feedback_reg); 8368 stage = feedback & IPR_IPL_INIT_STAGE_MASK; 8369 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; 8370 8371 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); 8372 8373 /* sanity check the stage_time value */ 8374 if (stage_time == 0) 8375 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; 8376 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) 8377 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; 8378 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) 8379 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; 8380 8381 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { 8382 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); 8383 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8384 stage_time = ioa_cfg->transop_timeout; 8385 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 8386 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { 8387 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 8388 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 8389 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 8390 maskval = IPR_PCII_IPL_STAGE_CHANGE; 8391 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; 8392 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); 8393 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8394 return IPR_RC_JOB_CONTINUE; 8395 } 8396 } 8397 8398 ipr_cmd->timer.expires = jiffies + stage_time * HZ; 8399 ipr_cmd->timer.function = ipr_oper_timeout; 8400 ipr_cmd->done = ipr_reset_ioa_job; 8401 add_timer(&ipr_cmd->timer); 8402 8403 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 8404 8405 return IPR_RC_JOB_RETURN; 8406 } 8407 8408 /** 8409 * ipr_reset_enable_ioa - Enable the IOA following a reset. 8410 * @ipr_cmd: ipr command struct 8411 * 8412 * This function reinitializes some control blocks and 8413 * enables destructive diagnostics on the adapter. 8414 * 8415 * Return value: 8416 * IPR_RC_JOB_RETURN 8417 **/ 8418 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) 8419 { 8420 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8421 volatile u32 int_reg; 8422 volatile u64 maskval; 8423 int i; 8424 8425 ENTER; 8426 ipr_cmd->job_step = ipr_ioafp_identify_hrrq; 8427 ipr_init_ioa_mem(ioa_cfg); 8428 8429 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 8430 spin_lock(&ioa_cfg->hrrq[i]._lock); 8431 ioa_cfg->hrrq[i].allow_interrupts = 1; 8432 spin_unlock(&ioa_cfg->hrrq[i]._lock); 8433 } 8434 if (ioa_cfg->sis64) { 8435 /* Set the adapter to the correct endian mode. */ 8436 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 8437 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 8438 } 8439 8440 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); 8441 8442 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { 8443 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), 8444 ioa_cfg->regs.clr_interrupt_mask_reg32); 8445 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8446 return IPR_RC_JOB_CONTINUE; 8447 } 8448 8449 /* Enable destructive diagnostics on IOA */ 8450 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); 8451 8452 if (ioa_cfg->sis64) { 8453 maskval = IPR_PCII_IPL_STAGE_CHANGE; 8454 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; 8455 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); 8456 } else 8457 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); 8458 8459 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 8460 8461 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); 8462 8463 if (ioa_cfg->sis64) { 8464 ipr_cmd->job_step = ipr_reset_next_stage; 8465 return IPR_RC_JOB_CONTINUE; 8466 } 8467 8468 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); 8469 ipr_cmd->timer.function = ipr_oper_timeout; 8470 ipr_cmd->done = ipr_reset_ioa_job; 8471 add_timer(&ipr_cmd->timer); 8472 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 8473 8474 LEAVE; 8475 return IPR_RC_JOB_RETURN; 8476 } 8477 8478 /** 8479 * ipr_reset_wait_for_dump - Wait for a dump to timeout. 8480 * @ipr_cmd: ipr command struct 8481 * 8482 * This function is invoked when an adapter dump has run out 8483 * of processing time. 8484 * 8485 * Return value: 8486 * IPR_RC_JOB_CONTINUE 8487 **/ 8488 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) 8489 { 8490 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8491 8492 if (ioa_cfg->sdt_state == GET_DUMP) 8493 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8494 else if (ioa_cfg->sdt_state == READ_DUMP) 8495 ioa_cfg->sdt_state = ABORT_DUMP; 8496 8497 ioa_cfg->dump_timeout = 1; 8498 ipr_cmd->job_step = ipr_reset_alert; 8499 8500 return IPR_RC_JOB_CONTINUE; 8501 } 8502 8503 /** 8504 * ipr_unit_check_no_data - Log a unit check/no data error log 8505 * @ioa_cfg: ioa config struct 8506 * 8507 * Logs an error indicating the adapter unit checked, but for some 8508 * reason, we were unable to fetch the unit check buffer. 8509 * 8510 * Return value: 8511 * nothing 8512 **/ 8513 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) 8514 { 8515 ioa_cfg->errors_logged++; 8516 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); 8517 } 8518 8519 /** 8520 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA 8521 * @ioa_cfg: ioa config struct 8522 * 8523 * Fetches the unit check buffer from the adapter by clocking the data 8524 * through the mailbox register. 8525 * 8526 * Return value: 8527 * nothing 8528 **/ 8529 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) 8530 { 8531 unsigned long mailbox; 8532 struct ipr_hostrcb *hostrcb; 8533 struct ipr_uc_sdt sdt; 8534 int rc, length; 8535 u32 ioasc; 8536 8537 mailbox = readl(ioa_cfg->ioa_mailbox); 8538 8539 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { 8540 ipr_unit_check_no_data(ioa_cfg); 8541 return; 8542 } 8543 8544 memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); 8545 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, 8546 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); 8547 8548 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || 8549 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && 8550 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { 8551 ipr_unit_check_no_data(ioa_cfg); 8552 return; 8553 } 8554 8555 /* Find length of the first sdt entry (UC buffer) */ 8556 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) 8557 length = be32_to_cpu(sdt.entry[0].end_token); 8558 else 8559 length = (be32_to_cpu(sdt.entry[0].end_token) - 8560 be32_to_cpu(sdt.entry[0].start_token)) & 8561 IPR_FMT2_MBX_ADDR_MASK; 8562 8563 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, 8564 struct ipr_hostrcb, queue); 8565 list_del_init(&hostrcb->queue); 8566 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); 8567 8568 rc = ipr_get_ldump_data_section(ioa_cfg, 8569 be32_to_cpu(sdt.entry[0].start_token), 8570 (__be32 *)&hostrcb->hcam, 8571 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); 8572 8573 if (!rc) { 8574 ipr_handle_log_data(ioa_cfg, hostrcb); 8575 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); 8576 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && 8577 ioa_cfg->sdt_state == GET_DUMP) 8578 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 8579 } else 8580 ipr_unit_check_no_data(ioa_cfg); 8581 8582 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); 8583 } 8584 8585 /** 8586 * ipr_reset_get_unit_check_job - Call to get the unit check buffer. 8587 * @ipr_cmd: ipr command struct 8588 * 8589 * Description: This function will call to get the unit check buffer. 8590 * 8591 * Return value: 8592 * IPR_RC_JOB_RETURN 8593 **/ 8594 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) 8595 { 8596 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8597 8598 ENTER; 8599 ioa_cfg->ioa_unit_checked = 0; 8600 ipr_get_unit_check_buffer(ioa_cfg); 8601 ipr_cmd->job_step = ipr_reset_alert; 8602 ipr_reset_start_timer(ipr_cmd, 0); 8603 8604 LEAVE; 8605 return IPR_RC_JOB_RETURN; 8606 } 8607 8608 static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd) 8609 { 8610 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8611 8612 ENTER; 8613 8614 if (ioa_cfg->sdt_state != GET_DUMP) 8615 return IPR_RC_JOB_RETURN; 8616 8617 if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left || 8618 (readl(ioa_cfg->regs.sense_interrupt_reg) & 8619 IPR_PCII_MAILBOX_STABLE)) { 8620 8621 if (!ipr_cmd->u.time_left) 8622 dev_err(&ioa_cfg->pdev->dev, 8623 "Timed out waiting for Mailbox register.\n"); 8624 8625 ioa_cfg->sdt_state = READ_DUMP; 8626 ioa_cfg->dump_timeout = 0; 8627 if (ioa_cfg->sis64) 8628 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT); 8629 else 8630 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT); 8631 ipr_cmd->job_step = ipr_reset_wait_for_dump; 8632 schedule_work(&ioa_cfg->work_q); 8633 8634 } else { 8635 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 8636 ipr_reset_start_timer(ipr_cmd, 8637 IPR_CHECK_FOR_RESET_TIMEOUT); 8638 } 8639 8640 LEAVE; 8641 return IPR_RC_JOB_RETURN; 8642 } 8643 8644 /** 8645 * ipr_reset_restore_cfg_space - Restore PCI config space. 8646 * @ipr_cmd: ipr command struct 8647 * 8648 * Description: This function restores the saved PCI config space of 8649 * the adapter, fails all outstanding ops back to the callers, and 8650 * fetches the dump/unit check if applicable to this reset. 8651 * 8652 * Return value: 8653 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8654 **/ 8655 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) 8656 { 8657 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8658 u32 int_reg; 8659 8660 ENTER; 8661 ioa_cfg->pdev->state_saved = true; 8662 pci_restore_state(ioa_cfg->pdev); 8663 8664 if (ipr_set_pcix_cmd_reg(ioa_cfg)) { 8665 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 8666 return IPR_RC_JOB_CONTINUE; 8667 } 8668 8669 ipr_fail_all_ops(ioa_cfg); 8670 8671 if (ioa_cfg->sis64) { 8672 /* Set the adapter to the correct endian mode. */ 8673 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); 8674 int_reg = readl(ioa_cfg->regs.endian_swap_reg); 8675 } 8676 8677 if (ioa_cfg->ioa_unit_checked) { 8678 if (ioa_cfg->sis64) { 8679 ipr_cmd->job_step = ipr_reset_get_unit_check_job; 8680 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); 8681 return IPR_RC_JOB_RETURN; 8682 } else { 8683 ioa_cfg->ioa_unit_checked = 0; 8684 ipr_get_unit_check_buffer(ioa_cfg); 8685 ipr_cmd->job_step = ipr_reset_alert; 8686 ipr_reset_start_timer(ipr_cmd, 0); 8687 return IPR_RC_JOB_RETURN; 8688 } 8689 } 8690 8691 if (ioa_cfg->in_ioa_bringdown) { 8692 ipr_cmd->job_step = ipr_ioa_bringdown_done; 8693 } else if (ioa_cfg->sdt_state == GET_DUMP) { 8694 ipr_cmd->job_step = ipr_dump_mailbox_wait; 8695 ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX; 8696 } else { 8697 ipr_cmd->job_step = ipr_reset_enable_ioa; 8698 } 8699 8700 LEAVE; 8701 return IPR_RC_JOB_CONTINUE; 8702 } 8703 8704 /** 8705 * ipr_reset_bist_done - BIST has completed on the adapter. 8706 * @ipr_cmd: ipr command struct 8707 * 8708 * Description: Unblock config space and resume the reset process. 8709 * 8710 * Return value: 8711 * IPR_RC_JOB_CONTINUE 8712 **/ 8713 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) 8714 { 8715 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8716 8717 ENTER; 8718 if (ioa_cfg->cfg_locked) 8719 pci_cfg_access_unlock(ioa_cfg->pdev); 8720 ioa_cfg->cfg_locked = 0; 8721 ipr_cmd->job_step = ipr_reset_restore_cfg_space; 8722 LEAVE; 8723 return IPR_RC_JOB_CONTINUE; 8724 } 8725 8726 /** 8727 * ipr_reset_start_bist - Run BIST on the adapter. 8728 * @ipr_cmd: ipr command struct 8729 * 8730 * Description: This function runs BIST on the adapter, then delays 2 seconds. 8731 * 8732 * Return value: 8733 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8734 **/ 8735 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) 8736 { 8737 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8738 int rc = PCIBIOS_SUCCESSFUL; 8739 8740 ENTER; 8741 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) 8742 writel(IPR_UPROCI_SIS64_START_BIST, 8743 ioa_cfg->regs.set_uproc_interrupt_reg32); 8744 else 8745 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); 8746 8747 if (rc == PCIBIOS_SUCCESSFUL) { 8748 ipr_cmd->job_step = ipr_reset_bist_done; 8749 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 8750 rc = IPR_RC_JOB_RETURN; 8751 } else { 8752 if (ioa_cfg->cfg_locked) 8753 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev); 8754 ioa_cfg->cfg_locked = 0; 8755 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); 8756 rc = IPR_RC_JOB_CONTINUE; 8757 } 8758 8759 LEAVE; 8760 return rc; 8761 } 8762 8763 /** 8764 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter 8765 * @ipr_cmd: ipr command struct 8766 * 8767 * Description: This clears PCI reset to the adapter and delays two seconds. 8768 * 8769 * Return value: 8770 * IPR_RC_JOB_RETURN 8771 **/ 8772 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) 8773 { 8774 ENTER; 8775 ipr_cmd->job_step = ipr_reset_bist_done; 8776 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); 8777 LEAVE; 8778 return IPR_RC_JOB_RETURN; 8779 } 8780 8781 /** 8782 * ipr_reset_reset_work - Pulse a PCIe fundamental reset 8783 * @work: work struct 8784 * 8785 * Description: This pulses warm reset to a slot. 8786 * 8787 **/ 8788 static void ipr_reset_reset_work(struct work_struct *work) 8789 { 8790 struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work); 8791 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8792 struct pci_dev *pdev = ioa_cfg->pdev; 8793 unsigned long lock_flags = 0; 8794 8795 ENTER; 8796 pci_set_pcie_reset_state(pdev, pcie_warm_reset); 8797 msleep(jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT)); 8798 pci_set_pcie_reset_state(pdev, pcie_deassert_reset); 8799 8800 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 8801 if (ioa_cfg->reset_cmd == ipr_cmd) 8802 ipr_reset_ioa_job(ipr_cmd); 8803 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 8804 LEAVE; 8805 } 8806 8807 /** 8808 * ipr_reset_slot_reset - Reset the PCI slot of the adapter. 8809 * @ipr_cmd: ipr command struct 8810 * 8811 * Description: This asserts PCI reset to the adapter. 8812 * 8813 * Return value: 8814 * IPR_RC_JOB_RETURN 8815 **/ 8816 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) 8817 { 8818 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8819 8820 ENTER; 8821 INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work); 8822 queue_work(ioa_cfg->reset_work_q, &ipr_cmd->work); 8823 ipr_cmd->job_step = ipr_reset_slot_reset_done; 8824 LEAVE; 8825 return IPR_RC_JOB_RETURN; 8826 } 8827 8828 /** 8829 * ipr_reset_block_config_access_wait - Wait for permission to block config access 8830 * @ipr_cmd: ipr command struct 8831 * 8832 * Description: This attempts to block config access to the IOA. 8833 * 8834 * Return value: 8835 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8836 **/ 8837 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd) 8838 { 8839 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8840 int rc = IPR_RC_JOB_CONTINUE; 8841 8842 if (pci_cfg_access_trylock(ioa_cfg->pdev)) { 8843 ioa_cfg->cfg_locked = 1; 8844 ipr_cmd->job_step = ioa_cfg->reset; 8845 } else { 8846 if (ipr_cmd->u.time_left) { 8847 rc = IPR_RC_JOB_RETURN; 8848 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 8849 ipr_reset_start_timer(ipr_cmd, 8850 IPR_CHECK_FOR_RESET_TIMEOUT); 8851 } else { 8852 ipr_cmd->job_step = ioa_cfg->reset; 8853 dev_err(&ioa_cfg->pdev->dev, 8854 "Timed out waiting to lock config access. Resetting anyway.\n"); 8855 } 8856 } 8857 8858 return rc; 8859 } 8860 8861 /** 8862 * ipr_reset_block_config_access - Block config access to the IOA 8863 * @ipr_cmd: ipr command struct 8864 * 8865 * Description: This attempts to block config access to the IOA 8866 * 8867 * Return value: 8868 * IPR_RC_JOB_CONTINUE 8869 **/ 8870 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd) 8871 { 8872 ipr_cmd->ioa_cfg->cfg_locked = 0; 8873 ipr_cmd->job_step = ipr_reset_block_config_access_wait; 8874 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 8875 return IPR_RC_JOB_CONTINUE; 8876 } 8877 8878 /** 8879 * ipr_reset_allowed - Query whether or not IOA can be reset 8880 * @ioa_cfg: ioa config struct 8881 * 8882 * Return value: 8883 * 0 if reset not allowed / non-zero if reset is allowed 8884 **/ 8885 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) 8886 { 8887 volatile u32 temp_reg; 8888 8889 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 8890 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); 8891 } 8892 8893 /** 8894 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. 8895 * @ipr_cmd: ipr command struct 8896 * 8897 * Description: This function waits for adapter permission to run BIST, 8898 * then runs BIST. If the adapter does not give permission after a 8899 * reasonable time, we will reset the adapter anyway. The impact of 8900 * resetting the adapter without warning the adapter is the risk of 8901 * losing the persistent error log on the adapter. If the adapter is 8902 * reset while it is writing to the flash on the adapter, the flash 8903 * segment will have bad ECC and be zeroed. 8904 * 8905 * Return value: 8906 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 8907 **/ 8908 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) 8909 { 8910 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8911 int rc = IPR_RC_JOB_RETURN; 8912 8913 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { 8914 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; 8915 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 8916 } else { 8917 ipr_cmd->job_step = ipr_reset_block_config_access; 8918 rc = IPR_RC_JOB_CONTINUE; 8919 } 8920 8921 return rc; 8922 } 8923 8924 /** 8925 * ipr_reset_alert - Alert the adapter of a pending reset 8926 * @ipr_cmd: ipr command struct 8927 * 8928 * Description: This function alerts the adapter that it will be reset. 8929 * If memory space is not currently enabled, proceed directly 8930 * to running BIST on the adapter. The timer must always be started 8931 * so we guarantee we do not run BIST from ipr_isr. 8932 * 8933 * Return value: 8934 * IPR_RC_JOB_RETURN 8935 **/ 8936 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) 8937 { 8938 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8939 u16 cmd_reg; 8940 int rc; 8941 8942 ENTER; 8943 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); 8944 8945 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { 8946 ipr_mask_and_clear_interrupts(ioa_cfg, ~0); 8947 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); 8948 ipr_cmd->job_step = ipr_reset_wait_to_start_bist; 8949 } else { 8950 ipr_cmd->job_step = ipr_reset_block_config_access; 8951 } 8952 8953 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; 8954 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); 8955 8956 LEAVE; 8957 return IPR_RC_JOB_RETURN; 8958 } 8959 8960 /** 8961 * ipr_reset_quiesce_done - Complete IOA disconnect 8962 * @ipr_cmd: ipr command struct 8963 * 8964 * Description: Freeze the adapter to complete quiesce processing 8965 * 8966 * Return value: 8967 * IPR_RC_JOB_CONTINUE 8968 **/ 8969 static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd) 8970 { 8971 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8972 8973 ENTER; 8974 ipr_cmd->job_step = ipr_ioa_bringdown_done; 8975 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 8976 LEAVE; 8977 return IPR_RC_JOB_CONTINUE; 8978 } 8979 8980 /** 8981 * ipr_reset_cancel_hcam_done - Check for outstanding commands 8982 * @ipr_cmd: ipr command struct 8983 * 8984 * Description: Ensure nothing is outstanding to the IOA and 8985 * proceed with IOA disconnect. Otherwise reset the IOA. 8986 * 8987 * Return value: 8988 * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE 8989 **/ 8990 static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd) 8991 { 8992 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 8993 struct ipr_cmnd *loop_cmd; 8994 struct ipr_hrr_queue *hrrq; 8995 int rc = IPR_RC_JOB_CONTINUE; 8996 int count = 0; 8997 8998 ENTER; 8999 ipr_cmd->job_step = ipr_reset_quiesce_done; 9000 9001 for_each_hrrq(hrrq, ioa_cfg) { 9002 spin_lock(&hrrq->_lock); 9003 list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) { 9004 count++; 9005 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 9006 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 9007 rc = IPR_RC_JOB_RETURN; 9008 break; 9009 } 9010 spin_unlock(&hrrq->_lock); 9011 9012 if (count) 9013 break; 9014 } 9015 9016 LEAVE; 9017 return rc; 9018 } 9019 9020 /** 9021 * ipr_reset_cancel_hcam - Cancel outstanding HCAMs 9022 * @ipr_cmd: ipr command struct 9023 * 9024 * Description: Cancel any oustanding HCAMs to the IOA. 9025 * 9026 * Return value: 9027 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 9028 **/ 9029 static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd) 9030 { 9031 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9032 int rc = IPR_RC_JOB_CONTINUE; 9033 struct ipr_cmd_pkt *cmd_pkt; 9034 struct ipr_cmnd *hcam_cmd; 9035 struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ]; 9036 9037 ENTER; 9038 ipr_cmd->job_step = ipr_reset_cancel_hcam_done; 9039 9040 if (!hrrq->ioa_is_dead) { 9041 if (!list_empty(&ioa_cfg->hostrcb_pending_q)) { 9042 list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) { 9043 if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC) 9044 continue; 9045 9046 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9047 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 9048 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; 9049 cmd_pkt->request_type = IPR_RQTYPE_IOACMD; 9050 cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST; 9051 cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB; 9052 cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff; 9053 cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff; 9054 cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff; 9055 cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff; 9056 cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff; 9057 cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff; 9058 cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff; 9059 cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff; 9060 9061 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 9062 IPR_CANCEL_TIMEOUT); 9063 9064 rc = IPR_RC_JOB_RETURN; 9065 ipr_cmd->job_step = ipr_reset_cancel_hcam; 9066 break; 9067 } 9068 } 9069 } else 9070 ipr_cmd->job_step = ipr_reset_alert; 9071 9072 LEAVE; 9073 return rc; 9074 } 9075 9076 /** 9077 * ipr_reset_ucode_download_done - Microcode download completion 9078 * @ipr_cmd: ipr command struct 9079 * 9080 * Description: This function unmaps the microcode download buffer. 9081 * 9082 * Return value: 9083 * IPR_RC_JOB_CONTINUE 9084 **/ 9085 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) 9086 { 9087 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9088 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 9089 9090 dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist, 9091 sglist->num_sg, DMA_TO_DEVICE); 9092 9093 ipr_cmd->job_step = ipr_reset_alert; 9094 return IPR_RC_JOB_CONTINUE; 9095 } 9096 9097 /** 9098 * ipr_reset_ucode_download - Download microcode to the adapter 9099 * @ipr_cmd: ipr command struct 9100 * 9101 * Description: This function checks to see if it there is microcode 9102 * to download to the adapter. If there is, a download is performed. 9103 * 9104 * Return value: 9105 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 9106 **/ 9107 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) 9108 { 9109 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9110 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; 9111 9112 ENTER; 9113 ipr_cmd->job_step = ipr_reset_alert; 9114 9115 if (!sglist) 9116 return IPR_RC_JOB_CONTINUE; 9117 9118 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9119 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; 9120 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; 9121 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; 9122 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; 9123 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; 9124 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; 9125 9126 if (ioa_cfg->sis64) 9127 ipr_build_ucode_ioadl64(ipr_cmd, sglist); 9128 else 9129 ipr_build_ucode_ioadl(ipr_cmd, sglist); 9130 ipr_cmd->job_step = ipr_reset_ucode_download_done; 9131 9132 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, 9133 IPR_WRITE_BUFFER_TIMEOUT); 9134 9135 LEAVE; 9136 return IPR_RC_JOB_RETURN; 9137 } 9138 9139 /** 9140 * ipr_reset_shutdown_ioa - Shutdown the adapter 9141 * @ipr_cmd: ipr command struct 9142 * 9143 * Description: This function issues an adapter shutdown of the 9144 * specified type to the specified adapter as part of the 9145 * adapter reset job. 9146 * 9147 * Return value: 9148 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN 9149 **/ 9150 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) 9151 { 9152 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9153 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; 9154 unsigned long timeout; 9155 int rc = IPR_RC_JOB_CONTINUE; 9156 9157 ENTER; 9158 if (shutdown_type == IPR_SHUTDOWN_QUIESCE) 9159 ipr_cmd->job_step = ipr_reset_cancel_hcam; 9160 else if (shutdown_type != IPR_SHUTDOWN_NONE && 9161 !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { 9162 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 9163 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 9164 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 9165 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; 9166 9167 if (shutdown_type == IPR_SHUTDOWN_NORMAL) 9168 timeout = IPR_SHUTDOWN_TIMEOUT; 9169 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) 9170 timeout = IPR_INTERNAL_TIMEOUT; 9171 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) 9172 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; 9173 else 9174 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; 9175 9176 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); 9177 9178 rc = IPR_RC_JOB_RETURN; 9179 ipr_cmd->job_step = ipr_reset_ucode_download; 9180 } else 9181 ipr_cmd->job_step = ipr_reset_alert; 9182 9183 LEAVE; 9184 return rc; 9185 } 9186 9187 /** 9188 * ipr_reset_ioa_job - Adapter reset job 9189 * @ipr_cmd: ipr command struct 9190 * 9191 * Description: This function is the job router for the adapter reset job. 9192 * 9193 * Return value: 9194 * none 9195 **/ 9196 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) 9197 { 9198 u32 rc, ioasc; 9199 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9200 9201 do { 9202 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); 9203 9204 if (ioa_cfg->reset_cmd != ipr_cmd) { 9205 /* 9206 * We are doing nested adapter resets and this is 9207 * not the current reset job. 9208 */ 9209 list_add_tail(&ipr_cmd->queue, 9210 &ipr_cmd->hrrq->hrrq_free_q); 9211 return; 9212 } 9213 9214 if (IPR_IOASC_SENSE_KEY(ioasc)) { 9215 rc = ipr_cmd->job_step_failed(ipr_cmd); 9216 if (rc == IPR_RC_JOB_RETURN) 9217 return; 9218 } 9219 9220 ipr_reinit_ipr_cmnd(ipr_cmd); 9221 ipr_cmd->job_step_failed = ipr_reset_cmd_failed; 9222 rc = ipr_cmd->job_step(ipr_cmd); 9223 } while (rc == IPR_RC_JOB_CONTINUE); 9224 } 9225 9226 /** 9227 * _ipr_initiate_ioa_reset - Initiate an adapter reset 9228 * @ioa_cfg: ioa config struct 9229 * @job_step: first job step of reset job 9230 * @shutdown_type: shutdown type 9231 * 9232 * Description: This function will initiate the reset of the given adapter 9233 * starting at the selected job step. 9234 * If the caller needs to wait on the completion of the reset, 9235 * the caller must sleep on the reset_wait_q. 9236 * 9237 * Return value: 9238 * none 9239 **/ 9240 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 9241 int (*job_step) (struct ipr_cmnd *), 9242 enum ipr_shutdown_type shutdown_type) 9243 { 9244 struct ipr_cmnd *ipr_cmd; 9245 int i; 9246 9247 ioa_cfg->in_reset_reload = 1; 9248 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9249 spin_lock(&ioa_cfg->hrrq[i]._lock); 9250 ioa_cfg->hrrq[i].allow_cmds = 0; 9251 spin_unlock(&ioa_cfg->hrrq[i]._lock); 9252 } 9253 wmb(); 9254 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { 9255 ioa_cfg->scsi_unblock = 0; 9256 ioa_cfg->scsi_blocked = 1; 9257 scsi_block_requests(ioa_cfg->host); 9258 } 9259 9260 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 9261 ioa_cfg->reset_cmd = ipr_cmd; 9262 ipr_cmd->job_step = job_step; 9263 ipr_cmd->u.shutdown_type = shutdown_type; 9264 9265 ipr_reset_ioa_job(ipr_cmd); 9266 } 9267 9268 /** 9269 * ipr_initiate_ioa_reset - Initiate an adapter reset 9270 * @ioa_cfg: ioa config struct 9271 * @shutdown_type: shutdown type 9272 * 9273 * Description: This function will initiate the reset of the given adapter. 9274 * If the caller needs to wait on the completion of the reset, 9275 * the caller must sleep on the reset_wait_q. 9276 * 9277 * Return value: 9278 * none 9279 **/ 9280 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, 9281 enum ipr_shutdown_type shutdown_type) 9282 { 9283 int i; 9284 9285 if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) 9286 return; 9287 9288 if (ioa_cfg->in_reset_reload) { 9289 if (ioa_cfg->sdt_state == GET_DUMP) 9290 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 9291 else if (ioa_cfg->sdt_state == READ_DUMP) 9292 ioa_cfg->sdt_state = ABORT_DUMP; 9293 } 9294 9295 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { 9296 dev_err(&ioa_cfg->pdev->dev, 9297 "IOA taken offline - error recovery failed\n"); 9298 9299 ioa_cfg->reset_retries = 0; 9300 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9301 spin_lock(&ioa_cfg->hrrq[i]._lock); 9302 ioa_cfg->hrrq[i].ioa_is_dead = 1; 9303 spin_unlock(&ioa_cfg->hrrq[i]._lock); 9304 } 9305 wmb(); 9306 9307 if (ioa_cfg->in_ioa_bringdown) { 9308 ioa_cfg->reset_cmd = NULL; 9309 ioa_cfg->in_reset_reload = 0; 9310 ipr_fail_all_ops(ioa_cfg); 9311 wake_up_all(&ioa_cfg->reset_wait_q); 9312 9313 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { 9314 ioa_cfg->scsi_unblock = 1; 9315 schedule_work(&ioa_cfg->work_q); 9316 } 9317 return; 9318 } else { 9319 ioa_cfg->in_ioa_bringdown = 1; 9320 shutdown_type = IPR_SHUTDOWN_NONE; 9321 } 9322 } 9323 9324 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, 9325 shutdown_type); 9326 } 9327 9328 /** 9329 * ipr_reset_freeze - Hold off all I/O activity 9330 * @ipr_cmd: ipr command struct 9331 * 9332 * Description: If the PCI slot is frozen, hold off all I/O 9333 * activity; then, as soon as the slot is available again, 9334 * initiate an adapter reset. 9335 */ 9336 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) 9337 { 9338 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; 9339 int i; 9340 9341 /* Disallow new interrupts, avoid loop */ 9342 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9343 spin_lock(&ioa_cfg->hrrq[i]._lock); 9344 ioa_cfg->hrrq[i].allow_interrupts = 0; 9345 spin_unlock(&ioa_cfg->hrrq[i]._lock); 9346 } 9347 wmb(); 9348 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_pending_q); 9349 ipr_cmd->done = ipr_reset_ioa_job; 9350 return IPR_RC_JOB_RETURN; 9351 } 9352 9353 /** 9354 * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled 9355 * @pdev: PCI device struct 9356 * 9357 * Description: This routine is called to tell us that the MMIO 9358 * access to the IOA has been restored 9359 */ 9360 static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev) 9361 { 9362 unsigned long flags = 0; 9363 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9364 9365 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9366 if (!ioa_cfg->probe_done) 9367 pci_save_state(pdev); 9368 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9369 return PCI_ERS_RESULT_NEED_RESET; 9370 } 9371 9372 /** 9373 * ipr_pci_frozen - Called when slot has experienced a PCI bus error. 9374 * @pdev: PCI device struct 9375 * 9376 * Description: This routine is called to tell us that the PCI bus 9377 * is down. Can't do anything here, except put the device driver 9378 * into a holding pattern, waiting for the PCI bus to come back. 9379 */ 9380 static void ipr_pci_frozen(struct pci_dev *pdev) 9381 { 9382 unsigned long flags = 0; 9383 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9384 9385 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9386 if (ioa_cfg->probe_done) 9387 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); 9388 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9389 } 9390 9391 /** 9392 * ipr_pci_slot_reset - Called when PCI slot has been reset. 9393 * @pdev: PCI device struct 9394 * 9395 * Description: This routine is called by the pci error recovery 9396 * code after the PCI slot has been reset, just before we 9397 * should resume normal operations. 9398 */ 9399 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) 9400 { 9401 unsigned long flags = 0; 9402 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9403 9404 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9405 if (ioa_cfg->probe_done) { 9406 if (ioa_cfg->needs_warm_reset) 9407 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 9408 else 9409 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, 9410 IPR_SHUTDOWN_NONE); 9411 } else 9412 wake_up_all(&ioa_cfg->eeh_wait_q); 9413 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9414 return PCI_ERS_RESULT_RECOVERED; 9415 } 9416 9417 /** 9418 * ipr_pci_perm_failure - Called when PCI slot is dead for good. 9419 * @pdev: PCI device struct 9420 * 9421 * Description: This routine is called when the PCI bus has 9422 * permanently failed. 9423 */ 9424 static void ipr_pci_perm_failure(struct pci_dev *pdev) 9425 { 9426 unsigned long flags = 0; 9427 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 9428 int i; 9429 9430 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 9431 if (ioa_cfg->probe_done) { 9432 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 9433 ioa_cfg->sdt_state = ABORT_DUMP; 9434 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1; 9435 ioa_cfg->in_ioa_bringdown = 1; 9436 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9437 spin_lock(&ioa_cfg->hrrq[i]._lock); 9438 ioa_cfg->hrrq[i].allow_cmds = 0; 9439 spin_unlock(&ioa_cfg->hrrq[i]._lock); 9440 } 9441 wmb(); 9442 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 9443 } else 9444 wake_up_all(&ioa_cfg->eeh_wait_q); 9445 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 9446 } 9447 9448 /** 9449 * ipr_pci_error_detected - Called when a PCI error is detected. 9450 * @pdev: PCI device struct 9451 * @state: PCI channel state 9452 * 9453 * Description: Called when a PCI error is detected. 9454 * 9455 * Return value: 9456 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT 9457 */ 9458 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, 9459 pci_channel_state_t state) 9460 { 9461 switch (state) { 9462 case pci_channel_io_frozen: 9463 ipr_pci_frozen(pdev); 9464 return PCI_ERS_RESULT_CAN_RECOVER; 9465 case pci_channel_io_perm_failure: 9466 ipr_pci_perm_failure(pdev); 9467 return PCI_ERS_RESULT_DISCONNECT; 9468 break; 9469 default: 9470 break; 9471 } 9472 return PCI_ERS_RESULT_NEED_RESET; 9473 } 9474 9475 /** 9476 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) 9477 * @ioa_cfg: ioa cfg struct 9478 * 9479 * Description: This is the second phase of adapter initialization 9480 * This function takes care of initilizing the adapter to the point 9481 * where it can accept new commands. 9482 9483 * Return value: 9484 * 0 on success / -EIO on failure 9485 **/ 9486 static int ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) 9487 { 9488 int rc = 0; 9489 unsigned long host_lock_flags = 0; 9490 9491 ENTER; 9492 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 9493 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); 9494 ioa_cfg->probe_done = 1; 9495 if (ioa_cfg->needs_hard_reset) { 9496 ioa_cfg->needs_hard_reset = 0; 9497 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); 9498 } else 9499 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, 9500 IPR_SHUTDOWN_NONE); 9501 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 9502 9503 LEAVE; 9504 return rc; 9505 } 9506 9507 /** 9508 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter 9509 * @ioa_cfg: ioa config struct 9510 * 9511 * Return value: 9512 * none 9513 **/ 9514 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 9515 { 9516 int i; 9517 9518 if (ioa_cfg->ipr_cmnd_list) { 9519 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 9520 if (ioa_cfg->ipr_cmnd_list[i]) 9521 dma_pool_free(ioa_cfg->ipr_cmd_pool, 9522 ioa_cfg->ipr_cmnd_list[i], 9523 ioa_cfg->ipr_cmnd_list_dma[i]); 9524 9525 ioa_cfg->ipr_cmnd_list[i] = NULL; 9526 } 9527 } 9528 9529 if (ioa_cfg->ipr_cmd_pool) 9530 dma_pool_destroy(ioa_cfg->ipr_cmd_pool); 9531 9532 kfree(ioa_cfg->ipr_cmnd_list); 9533 kfree(ioa_cfg->ipr_cmnd_list_dma); 9534 ioa_cfg->ipr_cmnd_list = NULL; 9535 ioa_cfg->ipr_cmnd_list_dma = NULL; 9536 ioa_cfg->ipr_cmd_pool = NULL; 9537 } 9538 9539 /** 9540 * ipr_free_mem - Frees memory allocated for an adapter 9541 * @ioa_cfg: ioa cfg struct 9542 * 9543 * Return value: 9544 * nothing 9545 **/ 9546 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) 9547 { 9548 int i; 9549 9550 kfree(ioa_cfg->res_entries); 9551 dma_free_coherent(&ioa_cfg->pdev->dev, sizeof(struct ipr_misc_cbs), 9552 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 9553 ipr_free_cmd_blks(ioa_cfg); 9554 9555 for (i = 0; i < ioa_cfg->hrrq_num; i++) 9556 dma_free_coherent(&ioa_cfg->pdev->dev, 9557 sizeof(u32) * ioa_cfg->hrrq[i].size, 9558 ioa_cfg->hrrq[i].host_rrq, 9559 ioa_cfg->hrrq[i].host_rrq_dma); 9560 9561 dma_free_coherent(&ioa_cfg->pdev->dev, ioa_cfg->cfg_table_size, 9562 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma); 9563 9564 for (i = 0; i < IPR_MAX_HCAMS; i++) { 9565 dma_free_coherent(&ioa_cfg->pdev->dev, 9566 sizeof(struct ipr_hostrcb), 9567 ioa_cfg->hostrcb[i], 9568 ioa_cfg->hostrcb_dma[i]); 9569 } 9570 9571 ipr_free_dump(ioa_cfg); 9572 kfree(ioa_cfg->trace); 9573 } 9574 9575 /** 9576 * ipr_free_irqs - Free all allocated IRQs for the adapter. 9577 * @ioa_cfg: ipr cfg struct 9578 * 9579 * This function frees all allocated IRQs for the 9580 * specified adapter. 9581 * 9582 * Return value: 9583 * none 9584 **/ 9585 static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg) 9586 { 9587 struct pci_dev *pdev = ioa_cfg->pdev; 9588 int i; 9589 9590 for (i = 0; i < ioa_cfg->nvectors; i++) 9591 free_irq(pci_irq_vector(pdev, i), &ioa_cfg->hrrq[i]); 9592 pci_free_irq_vectors(pdev); 9593 } 9594 9595 /** 9596 * ipr_free_all_resources - Free all allocated resources for an adapter. 9597 * @ipr_cmd: ipr command struct 9598 * 9599 * This function frees all allocated resources for the 9600 * specified adapter. 9601 * 9602 * Return value: 9603 * none 9604 **/ 9605 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) 9606 { 9607 struct pci_dev *pdev = ioa_cfg->pdev; 9608 9609 ENTER; 9610 ipr_free_irqs(ioa_cfg); 9611 if (ioa_cfg->reset_work_q) 9612 destroy_workqueue(ioa_cfg->reset_work_q); 9613 iounmap(ioa_cfg->hdw_dma_regs); 9614 pci_release_regions(pdev); 9615 ipr_free_mem(ioa_cfg); 9616 scsi_host_put(ioa_cfg->host); 9617 pci_disable_device(pdev); 9618 LEAVE; 9619 } 9620 9621 /** 9622 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter 9623 * @ioa_cfg: ioa config struct 9624 * 9625 * Return value: 9626 * 0 on success / -ENOMEM on allocation failure 9627 **/ 9628 static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) 9629 { 9630 struct ipr_cmnd *ipr_cmd; 9631 struct ipr_ioarcb *ioarcb; 9632 dma_addr_t dma_addr; 9633 int i, entries_each_hrrq, hrrq_id = 0; 9634 9635 ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, &ioa_cfg->pdev->dev, 9636 sizeof(struct ipr_cmnd), 512, 0); 9637 9638 if (!ioa_cfg->ipr_cmd_pool) 9639 return -ENOMEM; 9640 9641 ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, sizeof(struct ipr_cmnd *), GFP_KERNEL); 9642 ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, sizeof(dma_addr_t), GFP_KERNEL); 9643 9644 if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) { 9645 ipr_free_cmd_blks(ioa_cfg); 9646 return -ENOMEM; 9647 } 9648 9649 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9650 if (ioa_cfg->hrrq_num > 1) { 9651 if (i == 0) { 9652 entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS; 9653 ioa_cfg->hrrq[i].min_cmd_id = 0; 9654 ioa_cfg->hrrq[i].max_cmd_id = 9655 (entries_each_hrrq - 1); 9656 } else { 9657 entries_each_hrrq = 9658 IPR_NUM_BASE_CMD_BLKS/ 9659 (ioa_cfg->hrrq_num - 1); 9660 ioa_cfg->hrrq[i].min_cmd_id = 9661 IPR_NUM_INTERNAL_CMD_BLKS + 9662 (i - 1) * entries_each_hrrq; 9663 ioa_cfg->hrrq[i].max_cmd_id = 9664 (IPR_NUM_INTERNAL_CMD_BLKS + 9665 i * entries_each_hrrq - 1); 9666 } 9667 } else { 9668 entries_each_hrrq = IPR_NUM_CMD_BLKS; 9669 ioa_cfg->hrrq[i].min_cmd_id = 0; 9670 ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1); 9671 } 9672 ioa_cfg->hrrq[i].size = entries_each_hrrq; 9673 } 9674 9675 BUG_ON(ioa_cfg->hrrq_num == 0); 9676 9677 i = IPR_NUM_CMD_BLKS - 9678 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1; 9679 if (i > 0) { 9680 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i; 9681 ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i; 9682 } 9683 9684 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { 9685 ipr_cmd = dma_pool_zalloc(ioa_cfg->ipr_cmd_pool, 9686 GFP_KERNEL, &dma_addr); 9687 9688 if (!ipr_cmd) { 9689 ipr_free_cmd_blks(ioa_cfg); 9690 return -ENOMEM; 9691 } 9692 9693 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; 9694 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; 9695 9696 ioarcb = &ipr_cmd->ioarcb; 9697 ipr_cmd->dma_addr = dma_addr; 9698 if (ioa_cfg->sis64) 9699 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); 9700 else 9701 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); 9702 9703 ioarcb->host_response_handle = cpu_to_be32(i << 2); 9704 if (ioa_cfg->sis64) { 9705 ioarcb->u.sis64_addr_data.data_ioadl_addr = 9706 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); 9707 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = 9708 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); 9709 } else { 9710 ioarcb->write_ioadl_addr = 9711 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); 9712 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; 9713 ioarcb->ioasa_host_pci_addr = 9714 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); 9715 } 9716 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); 9717 ipr_cmd->cmd_index = i; 9718 ipr_cmd->ioa_cfg = ioa_cfg; 9719 ipr_cmd->sense_buffer_dma = dma_addr + 9720 offsetof(struct ipr_cmnd, sense_buffer); 9721 9722 ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id; 9723 ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id]; 9724 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 9725 if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id) 9726 hrrq_id++; 9727 } 9728 9729 return 0; 9730 } 9731 9732 /** 9733 * ipr_alloc_mem - Allocate memory for an adapter 9734 * @ioa_cfg: ioa config struct 9735 * 9736 * Return value: 9737 * 0 on success / non-zero for error 9738 **/ 9739 static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) 9740 { 9741 struct pci_dev *pdev = ioa_cfg->pdev; 9742 int i, rc = -ENOMEM; 9743 9744 ENTER; 9745 ioa_cfg->res_entries = kcalloc(ioa_cfg->max_devs_supported, 9746 sizeof(struct ipr_resource_entry), 9747 GFP_KERNEL); 9748 9749 if (!ioa_cfg->res_entries) 9750 goto out; 9751 9752 for (i = 0; i < ioa_cfg->max_devs_supported; i++) { 9753 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); 9754 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; 9755 } 9756 9757 ioa_cfg->vpd_cbs = dma_alloc_coherent(&pdev->dev, 9758 sizeof(struct ipr_misc_cbs), 9759 &ioa_cfg->vpd_cbs_dma, 9760 GFP_KERNEL); 9761 9762 if (!ioa_cfg->vpd_cbs) 9763 goto out_free_res_entries; 9764 9765 if (ipr_alloc_cmd_blks(ioa_cfg)) 9766 goto out_free_vpd_cbs; 9767 9768 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9769 ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(&pdev->dev, 9770 sizeof(u32) * ioa_cfg->hrrq[i].size, 9771 &ioa_cfg->hrrq[i].host_rrq_dma, 9772 GFP_KERNEL); 9773 9774 if (!ioa_cfg->hrrq[i].host_rrq) { 9775 while (--i > 0) 9776 dma_free_coherent(&pdev->dev, 9777 sizeof(u32) * ioa_cfg->hrrq[i].size, 9778 ioa_cfg->hrrq[i].host_rrq, 9779 ioa_cfg->hrrq[i].host_rrq_dma); 9780 goto out_ipr_free_cmd_blocks; 9781 } 9782 ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg; 9783 } 9784 9785 ioa_cfg->u.cfg_table = dma_alloc_coherent(&pdev->dev, 9786 ioa_cfg->cfg_table_size, 9787 &ioa_cfg->cfg_table_dma, 9788 GFP_KERNEL); 9789 9790 if (!ioa_cfg->u.cfg_table) 9791 goto out_free_host_rrq; 9792 9793 for (i = 0; i < IPR_MAX_HCAMS; i++) { 9794 ioa_cfg->hostrcb[i] = dma_alloc_coherent(&pdev->dev, 9795 sizeof(struct ipr_hostrcb), 9796 &ioa_cfg->hostrcb_dma[i], 9797 GFP_KERNEL); 9798 9799 if (!ioa_cfg->hostrcb[i]) 9800 goto out_free_hostrcb_dma; 9801 9802 ioa_cfg->hostrcb[i]->hostrcb_dma = 9803 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); 9804 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; 9805 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); 9806 } 9807 9808 ioa_cfg->trace = kcalloc(IPR_NUM_TRACE_ENTRIES, 9809 sizeof(struct ipr_trace_entry), 9810 GFP_KERNEL); 9811 9812 if (!ioa_cfg->trace) 9813 goto out_free_hostrcb_dma; 9814 9815 rc = 0; 9816 out: 9817 LEAVE; 9818 return rc; 9819 9820 out_free_hostrcb_dma: 9821 while (i-- > 0) { 9822 dma_free_coherent(&pdev->dev, sizeof(struct ipr_hostrcb), 9823 ioa_cfg->hostrcb[i], 9824 ioa_cfg->hostrcb_dma[i]); 9825 } 9826 dma_free_coherent(&pdev->dev, ioa_cfg->cfg_table_size, 9827 ioa_cfg->u.cfg_table, ioa_cfg->cfg_table_dma); 9828 out_free_host_rrq: 9829 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 9830 dma_free_coherent(&pdev->dev, 9831 sizeof(u32) * ioa_cfg->hrrq[i].size, 9832 ioa_cfg->hrrq[i].host_rrq, 9833 ioa_cfg->hrrq[i].host_rrq_dma); 9834 } 9835 out_ipr_free_cmd_blocks: 9836 ipr_free_cmd_blks(ioa_cfg); 9837 out_free_vpd_cbs: 9838 dma_free_coherent(&pdev->dev, sizeof(struct ipr_misc_cbs), 9839 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); 9840 out_free_res_entries: 9841 kfree(ioa_cfg->res_entries); 9842 goto out; 9843 } 9844 9845 /** 9846 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values 9847 * @ioa_cfg: ioa config struct 9848 * 9849 * Return value: 9850 * none 9851 **/ 9852 static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) 9853 { 9854 int i; 9855 9856 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { 9857 ioa_cfg->bus_attr[i].bus = i; 9858 ioa_cfg->bus_attr[i].qas_enabled = 0; 9859 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; 9860 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) 9861 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; 9862 else 9863 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; 9864 } 9865 } 9866 9867 /** 9868 * ipr_init_regs - Initialize IOA registers 9869 * @ioa_cfg: ioa config struct 9870 * 9871 * Return value: 9872 * none 9873 **/ 9874 static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg) 9875 { 9876 const struct ipr_interrupt_offsets *p; 9877 struct ipr_interrupts *t; 9878 void __iomem *base; 9879 9880 p = &ioa_cfg->chip_cfg->regs; 9881 t = &ioa_cfg->regs; 9882 base = ioa_cfg->hdw_dma_regs; 9883 9884 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; 9885 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; 9886 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; 9887 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; 9888 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; 9889 t->clr_interrupt_reg = base + p->clr_interrupt_reg; 9890 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; 9891 t->sense_interrupt_reg = base + p->sense_interrupt_reg; 9892 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; 9893 t->ioarrin_reg = base + p->ioarrin_reg; 9894 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; 9895 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; 9896 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; 9897 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; 9898 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; 9899 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; 9900 9901 if (ioa_cfg->sis64) { 9902 t->init_feedback_reg = base + p->init_feedback_reg; 9903 t->dump_addr_reg = base + p->dump_addr_reg; 9904 t->dump_data_reg = base + p->dump_data_reg; 9905 t->endian_swap_reg = base + p->endian_swap_reg; 9906 } 9907 } 9908 9909 /** 9910 * ipr_init_ioa_cfg - Initialize IOA config struct 9911 * @ioa_cfg: ioa config struct 9912 * @host: scsi host struct 9913 * @pdev: PCI dev struct 9914 * 9915 * Return value: 9916 * none 9917 **/ 9918 static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, 9919 struct Scsi_Host *host, struct pci_dev *pdev) 9920 { 9921 int i; 9922 9923 ioa_cfg->host = host; 9924 ioa_cfg->pdev = pdev; 9925 ioa_cfg->log_level = ipr_log_level; 9926 ioa_cfg->doorbell = IPR_DOORBELL; 9927 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); 9928 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); 9929 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); 9930 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); 9931 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); 9932 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); 9933 9934 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); 9935 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); 9936 INIT_LIST_HEAD(&ioa_cfg->hostrcb_report_q); 9937 INIT_LIST_HEAD(&ioa_cfg->free_res_q); 9938 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 9939 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); 9940 INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread); 9941 init_waitqueue_head(&ioa_cfg->reset_wait_q); 9942 init_waitqueue_head(&ioa_cfg->msi_wait_q); 9943 init_waitqueue_head(&ioa_cfg->eeh_wait_q); 9944 ioa_cfg->sdt_state = INACTIVE; 9945 9946 ipr_initialize_bus_attr(ioa_cfg); 9947 ioa_cfg->max_devs_supported = ipr_max_devs; 9948 9949 if (ioa_cfg->sis64) { 9950 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; 9951 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; 9952 if (ipr_max_devs > IPR_MAX_SIS64_DEVS) 9953 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; 9954 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) 9955 + ((sizeof(struct ipr_config_table_entry64) 9956 * ioa_cfg->max_devs_supported))); 9957 } else { 9958 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; 9959 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; 9960 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) 9961 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; 9962 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) 9963 + ((sizeof(struct ipr_config_table_entry) 9964 * ioa_cfg->max_devs_supported))); 9965 } 9966 9967 host->max_channel = IPR_VSET_BUS; 9968 host->unique_id = host->host_no; 9969 host->max_cmd_len = IPR_MAX_CDB_LEN; 9970 host->can_queue = ioa_cfg->max_cmds; 9971 pci_set_drvdata(pdev, ioa_cfg); 9972 9973 for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) { 9974 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_free_q); 9975 INIT_LIST_HEAD(&ioa_cfg->hrrq[i].hrrq_pending_q); 9976 spin_lock_init(&ioa_cfg->hrrq[i]._lock); 9977 if (i == 0) 9978 ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock; 9979 else 9980 ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock; 9981 } 9982 } 9983 9984 /** 9985 * ipr_get_chip_info - Find adapter chip information 9986 * @dev_id: PCI device id struct 9987 * 9988 * Return value: 9989 * ptr to chip information on success / NULL on failure 9990 **/ 9991 static const struct ipr_chip_t * 9992 ipr_get_chip_info(const struct pci_device_id *dev_id) 9993 { 9994 int i; 9995 9996 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) 9997 if (ipr_chip[i].vendor == dev_id->vendor && 9998 ipr_chip[i].device == dev_id->device) 9999 return &ipr_chip[i]; 10000 return NULL; 10001 } 10002 10003 /** 10004 * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete 10005 * during probe time 10006 * @ioa_cfg: ioa config struct 10007 * 10008 * Return value: 10009 * None 10010 **/ 10011 static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg) 10012 { 10013 struct pci_dev *pdev = ioa_cfg->pdev; 10014 10015 if (pci_channel_offline(pdev)) { 10016 wait_event_timeout(ioa_cfg->eeh_wait_q, 10017 !pci_channel_offline(pdev), 10018 IPR_PCI_ERROR_RECOVERY_TIMEOUT); 10019 pci_restore_state(pdev); 10020 } 10021 } 10022 10023 static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg) 10024 { 10025 int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1; 10026 10027 for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) { 10028 snprintf(ioa_cfg->vectors_info[vec_idx].desc, n, 10029 "host%d-%d", ioa_cfg->host->host_no, vec_idx); 10030 ioa_cfg->vectors_info[vec_idx]. 10031 desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0; 10032 } 10033 } 10034 10035 static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg, 10036 struct pci_dev *pdev) 10037 { 10038 int i, rc; 10039 10040 for (i = 1; i < ioa_cfg->nvectors; i++) { 10041 rc = request_irq(pci_irq_vector(pdev, i), 10042 ipr_isr_mhrrq, 10043 0, 10044 ioa_cfg->vectors_info[i].desc, 10045 &ioa_cfg->hrrq[i]); 10046 if (rc) { 10047 while (--i >= 0) 10048 free_irq(pci_irq_vector(pdev, i), 10049 &ioa_cfg->hrrq[i]); 10050 return rc; 10051 } 10052 } 10053 return 0; 10054 } 10055 10056 /** 10057 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). 10058 * @pdev: PCI device struct 10059 * 10060 * Description: Simply set the msi_received flag to 1 indicating that 10061 * Message Signaled Interrupts are supported. 10062 * 10063 * Return value: 10064 * 0 on success / non-zero on failure 10065 **/ 10066 static irqreturn_t ipr_test_intr(int irq, void *devp) 10067 { 10068 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; 10069 unsigned long lock_flags = 0; 10070 irqreturn_t rc = IRQ_HANDLED; 10071 10072 dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n", irq); 10073 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10074 10075 ioa_cfg->msi_received = 1; 10076 wake_up(&ioa_cfg->msi_wait_q); 10077 10078 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10079 return rc; 10080 } 10081 10082 /** 10083 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. 10084 * @pdev: PCI device struct 10085 * 10086 * Description: This routine sets up and initiates a test interrupt to determine 10087 * if the interrupt is received via the ipr_test_intr() service routine. 10088 * If the tests fails, the driver will fall back to LSI. 10089 * 10090 * Return value: 10091 * 0 on success / non-zero on failure 10092 **/ 10093 static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev) 10094 { 10095 int rc; 10096 volatile u32 int_reg; 10097 unsigned long lock_flags = 0; 10098 int irq = pci_irq_vector(pdev, 0); 10099 10100 ENTER; 10101 10102 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10103 init_waitqueue_head(&ioa_cfg->msi_wait_q); 10104 ioa_cfg->msi_received = 0; 10105 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 10106 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); 10107 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); 10108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10109 10110 rc = request_irq(irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); 10111 if (rc) { 10112 dev_err(&pdev->dev, "Can not assign irq %d\n", irq); 10113 return rc; 10114 } else if (ipr_debug) 10115 dev_info(&pdev->dev, "IRQ assigned: %d\n", irq); 10116 10117 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); 10118 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); 10119 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); 10120 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10121 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 10122 10123 if (!ioa_cfg->msi_received) { 10124 /* MSI test failed */ 10125 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); 10126 rc = -EOPNOTSUPP; 10127 } else if (ipr_debug) 10128 dev_info(&pdev->dev, "MSI test succeeded.\n"); 10129 10130 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10131 10132 free_irq(irq, ioa_cfg); 10133 10134 LEAVE; 10135 10136 return rc; 10137 } 10138 10139 /* ipr_probe_ioa - Allocates memory and does first stage of initialization 10140 * @pdev: PCI device struct 10141 * @dev_id: PCI device id struct 10142 * 10143 * Return value: 10144 * 0 on success / non-zero on failure 10145 **/ 10146 static int ipr_probe_ioa(struct pci_dev *pdev, 10147 const struct pci_device_id *dev_id) 10148 { 10149 struct ipr_ioa_cfg *ioa_cfg; 10150 struct Scsi_Host *host; 10151 unsigned long ipr_regs_pci; 10152 void __iomem *ipr_regs; 10153 int rc = PCIBIOS_SUCCESSFUL; 10154 volatile u32 mask, uproc, interrupts; 10155 unsigned long lock_flags, driver_lock_flags; 10156 unsigned int irq_flag; 10157 10158 ENTER; 10159 10160 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); 10161 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); 10162 10163 if (!host) { 10164 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); 10165 rc = -ENOMEM; 10166 goto out; 10167 } 10168 10169 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; 10170 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); 10171 ata_host_init(&ioa_cfg->ata_host, &pdev->dev, &ipr_sata_ops); 10172 10173 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); 10174 10175 if (!ioa_cfg->ipr_chip) { 10176 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", 10177 dev_id->vendor, dev_id->device); 10178 goto out_scsi_host_put; 10179 } 10180 10181 /* set SIS 32 or SIS 64 */ 10182 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; 10183 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; 10184 ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr; 10185 ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds; 10186 10187 if (ipr_transop_timeout) 10188 ioa_cfg->transop_timeout = ipr_transop_timeout; 10189 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) 10190 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; 10191 else 10192 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; 10193 10194 ioa_cfg->revid = pdev->revision; 10195 10196 ipr_init_ioa_cfg(ioa_cfg, host, pdev); 10197 10198 ipr_regs_pci = pci_resource_start(pdev, 0); 10199 10200 rc = pci_request_regions(pdev, IPR_NAME); 10201 if (rc < 0) { 10202 dev_err(&pdev->dev, 10203 "Couldn't register memory range of registers\n"); 10204 goto out_scsi_host_put; 10205 } 10206 10207 rc = pci_enable_device(pdev); 10208 10209 if (rc || pci_channel_offline(pdev)) { 10210 if (pci_channel_offline(pdev)) { 10211 ipr_wait_for_pci_err_recovery(ioa_cfg); 10212 rc = pci_enable_device(pdev); 10213 } 10214 10215 if (rc) { 10216 dev_err(&pdev->dev, "Cannot enable adapter\n"); 10217 ipr_wait_for_pci_err_recovery(ioa_cfg); 10218 goto out_release_regions; 10219 } 10220 } 10221 10222 ipr_regs = pci_ioremap_bar(pdev, 0); 10223 10224 if (!ipr_regs) { 10225 dev_err(&pdev->dev, 10226 "Couldn't map memory range of registers\n"); 10227 rc = -ENOMEM; 10228 goto out_disable; 10229 } 10230 10231 ioa_cfg->hdw_dma_regs = ipr_regs; 10232 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; 10233 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; 10234 10235 ipr_init_regs(ioa_cfg); 10236 10237 if (ioa_cfg->sis64) { 10238 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); 10239 if (rc < 0) { 10240 dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n"); 10241 rc = dma_set_mask_and_coherent(&pdev->dev, 10242 DMA_BIT_MASK(32)); 10243 } 10244 } else 10245 rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); 10246 10247 if (rc < 0) { 10248 dev_err(&pdev->dev, "Failed to set DMA mask\n"); 10249 goto cleanup_nomem; 10250 } 10251 10252 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, 10253 ioa_cfg->chip_cfg->cache_line_size); 10254 10255 if (rc != PCIBIOS_SUCCESSFUL) { 10256 dev_err(&pdev->dev, "Write of cache line size failed\n"); 10257 ipr_wait_for_pci_err_recovery(ioa_cfg); 10258 rc = -EIO; 10259 goto cleanup_nomem; 10260 } 10261 10262 /* Issue MMIO read to ensure card is not in EEH */ 10263 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg); 10264 ipr_wait_for_pci_err_recovery(ioa_cfg); 10265 10266 if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) { 10267 dev_err(&pdev->dev, "The max number of MSIX is %d\n", 10268 IPR_MAX_MSIX_VECTORS); 10269 ipr_number_of_msix = IPR_MAX_MSIX_VECTORS; 10270 } 10271 10272 irq_flag = PCI_IRQ_LEGACY; 10273 if (ioa_cfg->ipr_chip->has_msi) 10274 irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX; 10275 rc = pci_alloc_irq_vectors(pdev, 1, ipr_number_of_msix, irq_flag); 10276 if (rc < 0) { 10277 ipr_wait_for_pci_err_recovery(ioa_cfg); 10278 goto cleanup_nomem; 10279 } 10280 ioa_cfg->nvectors = rc; 10281 10282 if (!pdev->msi_enabled && !pdev->msix_enabled) 10283 ioa_cfg->clear_isr = 1; 10284 10285 pci_set_master(pdev); 10286 10287 if (pci_channel_offline(pdev)) { 10288 ipr_wait_for_pci_err_recovery(ioa_cfg); 10289 pci_set_master(pdev); 10290 if (pci_channel_offline(pdev)) { 10291 rc = -EIO; 10292 goto out_msi_disable; 10293 } 10294 } 10295 10296 if (pdev->msi_enabled || pdev->msix_enabled) { 10297 rc = ipr_test_msi(ioa_cfg, pdev); 10298 switch (rc) { 10299 case 0: 10300 dev_info(&pdev->dev, 10301 "Request for %d MSI%ss succeeded.", ioa_cfg->nvectors, 10302 pdev->msix_enabled ? "-X" : ""); 10303 break; 10304 case -EOPNOTSUPP: 10305 ipr_wait_for_pci_err_recovery(ioa_cfg); 10306 pci_free_irq_vectors(pdev); 10307 10308 ioa_cfg->nvectors = 1; 10309 ioa_cfg->clear_isr = 1; 10310 break; 10311 default: 10312 goto out_msi_disable; 10313 } 10314 } 10315 10316 ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors, 10317 (unsigned int)num_online_cpus(), 10318 (unsigned int)IPR_MAX_HRRQ_NUM); 10319 10320 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) 10321 goto out_msi_disable; 10322 10323 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) 10324 goto out_msi_disable; 10325 10326 rc = ipr_alloc_mem(ioa_cfg); 10327 if (rc < 0) { 10328 dev_err(&pdev->dev, 10329 "Couldn't allocate enough memory for device driver!\n"); 10330 goto out_msi_disable; 10331 } 10332 10333 /* Save away PCI config space for use following IOA reset */ 10334 rc = pci_save_state(pdev); 10335 10336 if (rc != PCIBIOS_SUCCESSFUL) { 10337 dev_err(&pdev->dev, "Failed to save PCI config space\n"); 10338 rc = -EIO; 10339 goto cleanup_nolog; 10340 } 10341 10342 /* 10343 * If HRRQ updated interrupt is not masked, or reset alert is set, 10344 * the card is in an unknown state and needs a hard reset 10345 */ 10346 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); 10347 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); 10348 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); 10349 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) 10350 ioa_cfg->needs_hard_reset = 1; 10351 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices) 10352 ioa_cfg->needs_hard_reset = 1; 10353 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) 10354 ioa_cfg->ioa_unit_checked = 1; 10355 10356 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10357 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); 10358 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10359 10360 if (pdev->msi_enabled || pdev->msix_enabled) { 10361 name_msi_vectors(ioa_cfg); 10362 rc = request_irq(pci_irq_vector(pdev, 0), ipr_isr, 0, 10363 ioa_cfg->vectors_info[0].desc, 10364 &ioa_cfg->hrrq[0]); 10365 if (!rc) 10366 rc = ipr_request_other_msi_irqs(ioa_cfg, pdev); 10367 } else { 10368 rc = request_irq(pdev->irq, ipr_isr, 10369 IRQF_SHARED, 10370 IPR_NAME, &ioa_cfg->hrrq[0]); 10371 } 10372 if (rc) { 10373 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", 10374 pdev->irq, rc); 10375 goto cleanup_nolog; 10376 } 10377 10378 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || 10379 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { 10380 ioa_cfg->needs_warm_reset = 1; 10381 ioa_cfg->reset = ipr_reset_slot_reset; 10382 10383 ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d", 10384 WQ_MEM_RECLAIM, host->host_no); 10385 10386 if (!ioa_cfg->reset_work_q) { 10387 dev_err(&pdev->dev, "Couldn't register reset workqueue\n"); 10388 rc = -ENOMEM; 10389 goto out_free_irq; 10390 } 10391 } else 10392 ioa_cfg->reset = ipr_reset_start_bist; 10393 10394 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); 10395 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); 10396 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); 10397 10398 LEAVE; 10399 out: 10400 return rc; 10401 10402 out_free_irq: 10403 ipr_free_irqs(ioa_cfg); 10404 cleanup_nolog: 10405 ipr_free_mem(ioa_cfg); 10406 out_msi_disable: 10407 ipr_wait_for_pci_err_recovery(ioa_cfg); 10408 pci_free_irq_vectors(pdev); 10409 cleanup_nomem: 10410 iounmap(ipr_regs); 10411 out_disable: 10412 pci_disable_device(pdev); 10413 out_release_regions: 10414 pci_release_regions(pdev); 10415 out_scsi_host_put: 10416 scsi_host_put(host); 10417 goto out; 10418 } 10419 10420 /** 10421 * ipr_initiate_ioa_bringdown - Bring down an adapter 10422 * @ioa_cfg: ioa config struct 10423 * @shutdown_type: shutdown type 10424 * 10425 * Description: This function will initiate bringing down the adapter. 10426 * This consists of issuing an IOA shutdown to the adapter 10427 * to flush the cache, and running BIST. 10428 * If the caller needs to wait on the completion of the reset, 10429 * the caller must sleep on the reset_wait_q. 10430 * 10431 * Return value: 10432 * none 10433 **/ 10434 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, 10435 enum ipr_shutdown_type shutdown_type) 10436 { 10437 ENTER; 10438 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) 10439 ioa_cfg->sdt_state = ABORT_DUMP; 10440 ioa_cfg->reset_retries = 0; 10441 ioa_cfg->in_ioa_bringdown = 1; 10442 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); 10443 LEAVE; 10444 } 10445 10446 /** 10447 * __ipr_remove - Remove a single adapter 10448 * @pdev: pci device struct 10449 * 10450 * Adapter hot plug remove entry point. 10451 * 10452 * Return value: 10453 * none 10454 **/ 10455 static void __ipr_remove(struct pci_dev *pdev) 10456 { 10457 unsigned long host_lock_flags = 0; 10458 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 10459 int i; 10460 unsigned long driver_lock_flags; 10461 ENTER; 10462 10463 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 10464 while (ioa_cfg->in_reset_reload) { 10465 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 10466 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 10467 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 10468 } 10469 10470 for (i = 0; i < ioa_cfg->hrrq_num; i++) { 10471 spin_lock(&ioa_cfg->hrrq[i]._lock); 10472 ioa_cfg->hrrq[i].removing_ioa = 1; 10473 spin_unlock(&ioa_cfg->hrrq[i]._lock); 10474 } 10475 wmb(); 10476 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); 10477 10478 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 10479 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 10480 flush_work(&ioa_cfg->work_q); 10481 if (ioa_cfg->reset_work_q) 10482 flush_workqueue(ioa_cfg->reset_work_q); 10483 INIT_LIST_HEAD(&ioa_cfg->used_res_q); 10484 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); 10485 10486 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); 10487 list_del(&ioa_cfg->queue); 10488 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); 10489 10490 if (ioa_cfg->sdt_state == ABORT_DUMP) 10491 ioa_cfg->sdt_state = WAIT_FOR_DUMP; 10492 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); 10493 10494 ipr_free_all_resources(ioa_cfg); 10495 10496 LEAVE; 10497 } 10498 10499 /** 10500 * ipr_remove - IOA hot plug remove entry point 10501 * @pdev: pci device struct 10502 * 10503 * Adapter hot plug remove entry point. 10504 * 10505 * Return value: 10506 * none 10507 **/ 10508 static void ipr_remove(struct pci_dev *pdev) 10509 { 10510 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 10511 10512 ENTER; 10513 10514 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 10515 &ipr_trace_attr); 10516 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 10517 &ipr_dump_attr); 10518 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj, 10519 &ipr_ioa_async_err_log); 10520 scsi_remove_host(ioa_cfg->host); 10521 10522 __ipr_remove(pdev); 10523 10524 LEAVE; 10525 } 10526 10527 /** 10528 * ipr_probe - Adapter hot plug add entry point 10529 * 10530 * Return value: 10531 * 0 on success / non-zero on failure 10532 **/ 10533 static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) 10534 { 10535 struct ipr_ioa_cfg *ioa_cfg; 10536 unsigned long flags; 10537 int rc, i; 10538 10539 rc = ipr_probe_ioa(pdev, dev_id); 10540 10541 if (rc) 10542 return rc; 10543 10544 ioa_cfg = pci_get_drvdata(pdev); 10545 rc = ipr_probe_ioa_part2(ioa_cfg); 10546 10547 if (rc) { 10548 __ipr_remove(pdev); 10549 return rc; 10550 } 10551 10552 rc = scsi_add_host(ioa_cfg->host, &pdev->dev); 10553 10554 if (rc) { 10555 __ipr_remove(pdev); 10556 return rc; 10557 } 10558 10559 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, 10560 &ipr_trace_attr); 10561 10562 if (rc) { 10563 scsi_remove_host(ioa_cfg->host); 10564 __ipr_remove(pdev); 10565 return rc; 10566 } 10567 10568 rc = sysfs_create_bin_file(&ioa_cfg->host->shost_dev.kobj, 10569 &ipr_ioa_async_err_log); 10570 10571 if (rc) { 10572 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, 10573 &ipr_dump_attr); 10574 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 10575 &ipr_trace_attr); 10576 scsi_remove_host(ioa_cfg->host); 10577 __ipr_remove(pdev); 10578 return rc; 10579 } 10580 10581 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, 10582 &ipr_dump_attr); 10583 10584 if (rc) { 10585 sysfs_remove_bin_file(&ioa_cfg->host->shost_dev.kobj, 10586 &ipr_ioa_async_err_log); 10587 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, 10588 &ipr_trace_attr); 10589 scsi_remove_host(ioa_cfg->host); 10590 __ipr_remove(pdev); 10591 return rc; 10592 } 10593 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 10594 ioa_cfg->scan_enabled = 1; 10595 schedule_work(&ioa_cfg->work_q); 10596 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 10597 10598 ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight; 10599 10600 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { 10601 for (i = 1; i < ioa_cfg->hrrq_num; i++) { 10602 irq_poll_init(&ioa_cfg->hrrq[i].iopoll, 10603 ioa_cfg->iopoll_weight, ipr_iopoll); 10604 } 10605 } 10606 10607 scsi_scan_host(ioa_cfg->host); 10608 10609 return 0; 10610 } 10611 10612 /** 10613 * ipr_shutdown - Shutdown handler. 10614 * @pdev: pci device struct 10615 * 10616 * This function is invoked upon system shutdown/reboot. It will issue 10617 * an adapter shutdown to the adapter to flush the write cache. 10618 * 10619 * Return value: 10620 * none 10621 **/ 10622 static void ipr_shutdown(struct pci_dev *pdev) 10623 { 10624 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); 10625 unsigned long lock_flags = 0; 10626 enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL; 10627 int i; 10628 10629 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10630 if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { 10631 ioa_cfg->iopoll_weight = 0; 10632 for (i = 1; i < ioa_cfg->hrrq_num; i++) 10633 irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); 10634 } 10635 10636 while (ioa_cfg->in_reset_reload) { 10637 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10638 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 10639 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); 10640 } 10641 10642 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) 10643 shutdown_type = IPR_SHUTDOWN_QUIESCE; 10644 10645 ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type); 10646 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); 10647 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); 10648 if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) { 10649 ipr_free_irqs(ioa_cfg); 10650 pci_disable_device(ioa_cfg->pdev); 10651 } 10652 } 10653 10654 static struct pci_device_id ipr_pci_table[] = { 10655 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 10656 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, 10657 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 10658 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, 10659 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 10660 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, 10661 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, 10662 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, 10663 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 10664 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, 10665 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 10666 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, 10667 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 10668 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, 10669 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, 10670 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, 10671 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10672 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 10673 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 10674 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 10675 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 10676 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10677 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, 10678 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 10679 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10680 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 10681 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, 10682 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 10683 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, 10684 IPR_USE_LONG_TRANSOP_TIMEOUT}, 10685 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, 10686 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, 10687 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10688 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 10689 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 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_57B3, 0, 0, 0 }, 10693 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 10694 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, 10695 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, 10696 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, 10697 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, 10698 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, 10699 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, 10700 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 10701 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, 10702 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 10703 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, 10704 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10705 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, 10706 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, 10707 IPR_USE_LONG_TRANSOP_TIMEOUT }, 10708 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10709 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, 10710 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10711 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, 10712 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10713 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, 10714 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10715 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 }, 10716 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10717 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 }, 10718 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, 10719 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, 10720 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10721 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, 10722 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10723 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, 10724 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10725 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, 10726 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10727 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 }, 10728 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10729 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, 10730 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10731 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 }, 10732 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10733 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 }, 10734 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10735 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 }, 10736 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10737 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 }, 10738 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10739 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 }, 10740 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10741 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 }, 10742 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10743 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 }, 10744 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10745 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 }, 10746 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10747 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 }, 10748 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10749 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 }, 10750 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10751 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 }, 10752 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10753 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 }, 10754 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10755 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 }, 10756 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10757 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 }, 10758 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, 10759 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 }, 10760 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, 10761 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 }, 10762 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, 10763 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 }, 10764 { } 10765 }; 10766 MODULE_DEVICE_TABLE(pci, ipr_pci_table); 10767 10768 static const struct pci_error_handlers ipr_err_handler = { 10769 .error_detected = ipr_pci_error_detected, 10770 .mmio_enabled = ipr_pci_mmio_enabled, 10771 .slot_reset = ipr_pci_slot_reset, 10772 }; 10773 10774 static struct pci_driver ipr_driver = { 10775 .name = IPR_NAME, 10776 .id_table = ipr_pci_table, 10777 .probe = ipr_probe, 10778 .remove = ipr_remove, 10779 .shutdown = ipr_shutdown, 10780 .err_handler = &ipr_err_handler, 10781 }; 10782 10783 /** 10784 * ipr_halt_done - Shutdown prepare completion 10785 * 10786 * Return value: 10787 * none 10788 **/ 10789 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) 10790 { 10791 list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); 10792 } 10793 10794 /** 10795 * ipr_halt - Issue shutdown prepare to all adapters 10796 * 10797 * Return value: 10798 * NOTIFY_OK on success / NOTIFY_DONE on failure 10799 **/ 10800 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) 10801 { 10802 struct ipr_cmnd *ipr_cmd; 10803 struct ipr_ioa_cfg *ioa_cfg; 10804 unsigned long flags = 0, driver_lock_flags; 10805 10806 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) 10807 return NOTIFY_DONE; 10808 10809 spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); 10810 10811 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { 10812 spin_lock_irqsave(ioa_cfg->host->host_lock, flags); 10813 if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds || 10814 (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) { 10815 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 10816 continue; 10817 } 10818 10819 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); 10820 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); 10821 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; 10822 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; 10823 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; 10824 10825 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); 10826 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); 10827 } 10828 spin_unlock_irqrestore(&ipr_driver_lock, driver_lock_flags); 10829 10830 return NOTIFY_OK; 10831 } 10832 10833 static struct notifier_block ipr_notifier = { 10834 ipr_halt, NULL, 0 10835 }; 10836 10837 /** 10838 * ipr_init - Module entry point 10839 * 10840 * Return value: 10841 * 0 on success / negative value on failure 10842 **/ 10843 static int __init ipr_init(void) 10844 { 10845 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", 10846 IPR_DRIVER_VERSION, IPR_DRIVER_DATE); 10847 10848 register_reboot_notifier(&ipr_notifier); 10849 return pci_register_driver(&ipr_driver); 10850 } 10851 10852 /** 10853 * ipr_exit - Module unload 10854 * 10855 * Module unload entry point. 10856 * 10857 * Return value: 10858 * none 10859 **/ 10860 static void __exit ipr_exit(void) 10861 { 10862 unregister_reboot_notifier(&ipr_notifier); 10863 pci_unregister_driver(&ipr_driver); 10864 } 10865 10866 module_init(ipr_init); 10867 module_exit(ipr_exit); 10868