1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 #include "qla_target.h" 9 10 #include <linux/delay.h> 11 #include <linux/slab.h> 12 #include <linux/t10-pi.h> 13 #include <scsi/scsi_tcq.h> 14 #include <scsi/scsi_bsg_fc.h> 15 #include <scsi/scsi_eh.h> 16 17 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); 19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *); 20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *, 21 sts_entry_t *); 22 23 /** 24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 25 * @irq: 26 * @dev_id: SCSI driver HA context 27 * 28 * Called by system whenever the host adapter generates an interrupt. 29 * 30 * Returns handled flag. 31 */ 32 irqreturn_t 33 qla2100_intr_handler(int irq, void *dev_id) 34 { 35 scsi_qla_host_t *vha; 36 struct qla_hw_data *ha; 37 struct device_reg_2xxx __iomem *reg; 38 int status; 39 unsigned long iter; 40 uint16_t hccr; 41 uint16_t mb[4]; 42 struct rsp_que *rsp; 43 unsigned long flags; 44 45 rsp = (struct rsp_que *) dev_id; 46 if (!rsp) { 47 ql_log(ql_log_info, NULL, 0x505d, 48 "%s: NULL response queue pointer.\n", __func__); 49 return (IRQ_NONE); 50 } 51 52 ha = rsp->hw; 53 reg = &ha->iobase->isp; 54 status = 0; 55 56 spin_lock_irqsave(&ha->hardware_lock, flags); 57 vha = pci_get_drvdata(ha->pdev); 58 for (iter = 50; iter--; ) { 59 hccr = RD_REG_WORD(®->hccr); 60 if (qla2x00_check_reg16_for_disconnect(vha, hccr)) 61 break; 62 if (hccr & HCCR_RISC_PAUSE) { 63 if (pci_channel_offline(ha->pdev)) 64 break; 65 66 /* 67 * Issue a "HARD" reset in order for the RISC interrupt 68 * bit to be cleared. Schedule a big hammer to get 69 * out of the RISC PAUSED state. 70 */ 71 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 72 RD_REG_WORD(®->hccr); 73 74 ha->isp_ops->fw_dump(vha, 1); 75 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 76 break; 77 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 78 break; 79 80 if (RD_REG_WORD(®->semaphore) & BIT_0) { 81 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 82 RD_REG_WORD(®->hccr); 83 84 /* Get mailbox data. */ 85 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 86 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 87 qla2x00_mbx_completion(vha, mb[0]); 88 status |= MBX_INTERRUPT; 89 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 90 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 91 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 92 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 93 qla2x00_async_event(vha, rsp, mb); 94 } else { 95 /*EMPTY*/ 96 ql_dbg(ql_dbg_async, vha, 0x5025, 97 "Unrecognized interrupt type (%d).\n", 98 mb[0]); 99 } 100 /* Release mailbox registers. */ 101 WRT_REG_WORD(®->semaphore, 0); 102 RD_REG_WORD(®->semaphore); 103 } else { 104 qla2x00_process_response_queue(rsp); 105 106 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 107 RD_REG_WORD(®->hccr); 108 } 109 } 110 qla2x00_handle_mbx_completion(ha, status); 111 spin_unlock_irqrestore(&ha->hardware_lock, flags); 112 113 return (IRQ_HANDLED); 114 } 115 116 bool 117 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg) 118 { 119 /* Check for PCI disconnection */ 120 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) { 121 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) && 122 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) && 123 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) { 124 /* 125 * Schedule this (only once) on the default system 126 * workqueue so that all the adapter workqueues and the 127 * DPC thread can be shutdown cleanly. 128 */ 129 schedule_work(&vha->hw->board_disable); 130 } 131 return true; 132 } else 133 return false; 134 } 135 136 bool 137 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg) 138 { 139 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg); 140 } 141 142 /** 143 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 144 * @irq: 145 * @dev_id: SCSI driver HA context 146 * 147 * Called by system whenever the host adapter generates an interrupt. 148 * 149 * Returns handled flag. 150 */ 151 irqreturn_t 152 qla2300_intr_handler(int irq, void *dev_id) 153 { 154 scsi_qla_host_t *vha; 155 struct device_reg_2xxx __iomem *reg; 156 int status; 157 unsigned long iter; 158 uint32_t stat; 159 uint16_t hccr; 160 uint16_t mb[4]; 161 struct rsp_que *rsp; 162 struct qla_hw_data *ha; 163 unsigned long flags; 164 165 rsp = (struct rsp_que *) dev_id; 166 if (!rsp) { 167 ql_log(ql_log_info, NULL, 0x5058, 168 "%s: NULL response queue pointer.\n", __func__); 169 return (IRQ_NONE); 170 } 171 172 ha = rsp->hw; 173 reg = &ha->iobase->isp; 174 status = 0; 175 176 spin_lock_irqsave(&ha->hardware_lock, flags); 177 vha = pci_get_drvdata(ha->pdev); 178 for (iter = 50; iter--; ) { 179 stat = RD_REG_DWORD(®->u.isp2300.host_status); 180 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 181 break; 182 if (stat & HSR_RISC_PAUSED) { 183 if (unlikely(pci_channel_offline(ha->pdev))) 184 break; 185 186 hccr = RD_REG_WORD(®->hccr); 187 188 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 189 ql_log(ql_log_warn, vha, 0x5026, 190 "Parity error -- HCCR=%x, Dumping " 191 "firmware.\n", hccr); 192 else 193 ql_log(ql_log_warn, vha, 0x5027, 194 "RISC paused -- HCCR=%x, Dumping " 195 "firmware.\n", hccr); 196 197 /* 198 * Issue a "HARD" reset in order for the RISC 199 * interrupt bit to be cleared. Schedule a big 200 * hammer to get out of the RISC PAUSED state. 201 */ 202 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 203 RD_REG_WORD(®->hccr); 204 205 ha->isp_ops->fw_dump(vha, 1); 206 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 207 break; 208 } else if ((stat & HSR_RISC_INT) == 0) 209 break; 210 211 switch (stat & 0xff) { 212 case 0x1: 213 case 0x2: 214 case 0x10: 215 case 0x11: 216 qla2x00_mbx_completion(vha, MSW(stat)); 217 status |= MBX_INTERRUPT; 218 219 /* Release mailbox registers. */ 220 WRT_REG_WORD(®->semaphore, 0); 221 break; 222 case 0x12: 223 mb[0] = MSW(stat); 224 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 225 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 226 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 227 qla2x00_async_event(vha, rsp, mb); 228 break; 229 case 0x13: 230 qla2x00_process_response_queue(rsp); 231 break; 232 case 0x15: 233 mb[0] = MBA_CMPLT_1_16BIT; 234 mb[1] = MSW(stat); 235 qla2x00_async_event(vha, rsp, mb); 236 break; 237 case 0x16: 238 mb[0] = MBA_SCSI_COMPLETION; 239 mb[1] = MSW(stat); 240 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 241 qla2x00_async_event(vha, rsp, mb); 242 break; 243 default: 244 ql_dbg(ql_dbg_async, vha, 0x5028, 245 "Unrecognized interrupt type (%d).\n", stat & 0xff); 246 break; 247 } 248 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 249 RD_REG_WORD_RELAXED(®->hccr); 250 } 251 qla2x00_handle_mbx_completion(ha, status); 252 spin_unlock_irqrestore(&ha->hardware_lock, flags); 253 254 return (IRQ_HANDLED); 255 } 256 257 /** 258 * qla2x00_mbx_completion() - Process mailbox command completions. 259 * @ha: SCSI driver HA context 260 * @mb0: Mailbox0 register 261 */ 262 static void 263 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 264 { 265 uint16_t cnt; 266 uint32_t mboxes; 267 uint16_t __iomem *wptr; 268 struct qla_hw_data *ha = vha->hw; 269 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 270 271 /* Read all mbox registers? */ 272 mboxes = (1 << ha->mbx_count) - 1; 273 if (!ha->mcp) 274 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n"); 275 else 276 mboxes = ha->mcp->in_mb; 277 278 /* Load return mailbox registers. */ 279 ha->flags.mbox_int = 1; 280 ha->mailbox_out[0] = mb0; 281 mboxes >>= 1; 282 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 283 284 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 285 if (IS_QLA2200(ha) && cnt == 8) 286 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 287 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0)) 288 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 289 else if (mboxes & BIT_0) 290 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 291 292 wptr++; 293 mboxes >>= 1; 294 } 295 } 296 297 static void 298 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) 299 { 300 static char *event[] = 301 { "Complete", "Request Notification", "Time Extension" }; 302 int rval; 303 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24; 304 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82; 305 uint16_t __iomem *wptr; 306 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; 307 308 /* Seed data -- mailbox1 -> mailbox7. */ 309 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw)) 310 wptr = (uint16_t __iomem *)®24->mailbox1; 311 else if (IS_QLA8044(vha->hw)) 312 wptr = (uint16_t __iomem *)®82->mailbox_out[1]; 313 else 314 return; 315 316 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) 317 mb[cnt] = RD_REG_WORD(wptr); 318 319 ql_dbg(ql_dbg_async, vha, 0x5021, 320 "Inter-Driver Communication %s -- " 321 "%04x %04x %04x %04x %04x %04x %04x.\n", 322 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3], 323 mb[4], mb[5], mb[6]); 324 switch (aen) { 325 /* Handle IDC Error completion case. */ 326 case MBA_IDC_COMPLETE: 327 if (mb[1] >> 15) { 328 vha->hw->flags.idc_compl_status = 1; 329 if (vha->hw->notify_dcbx_comp && !vha->vp_idx) 330 complete(&vha->hw->dcbx_comp); 331 } 332 break; 333 334 case MBA_IDC_NOTIFY: 335 /* Acknowledgement needed? [Notify && non-zero timeout]. */ 336 timeout = (descr >> 8) & 0xf; 337 ql_dbg(ql_dbg_async, vha, 0x5022, 338 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n", 339 vha->host_no, event[aen & 0xff], timeout); 340 341 if (!timeout) 342 return; 343 rval = qla2x00_post_idc_ack_work(vha, mb); 344 if (rval != QLA_SUCCESS) 345 ql_log(ql_log_warn, vha, 0x5023, 346 "IDC failed to post ACK.\n"); 347 break; 348 case MBA_IDC_TIME_EXT: 349 vha->hw->idc_extend_tmo = descr; 350 ql_dbg(ql_dbg_async, vha, 0x5087, 351 "%lu Inter-Driver Communication %s -- " 352 "Extend timeout by=%d.\n", 353 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo); 354 break; 355 } 356 } 357 358 #define LS_UNKNOWN 2 359 const char * 360 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed) 361 { 362 static const char *const link_speeds[] = { 363 "1", "2", "?", "4", "8", "16", "32", "10" 364 }; 365 #define QLA_LAST_SPEED 7 366 367 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 368 return link_speeds[0]; 369 else if (speed == 0x13) 370 return link_speeds[QLA_LAST_SPEED]; 371 else if (speed < QLA_LAST_SPEED) 372 return link_speeds[speed]; 373 else 374 return link_speeds[LS_UNKNOWN]; 375 } 376 377 static void 378 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb) 379 { 380 struct qla_hw_data *ha = vha->hw; 381 382 /* 383 * 8200 AEN Interpretation: 384 * mb[0] = AEN code 385 * mb[1] = AEN Reason code 386 * mb[2] = LSW of Peg-Halt Status-1 Register 387 * mb[6] = MSW of Peg-Halt Status-1 Register 388 * mb[3] = LSW of Peg-Halt Status-2 register 389 * mb[7] = MSW of Peg-Halt Status-2 register 390 * mb[4] = IDC Device-State Register value 391 * mb[5] = IDC Driver-Presence Register value 392 */ 393 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: " 394 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n", 395 mb[0], mb[1], mb[2], mb[6]); 396 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x " 397 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x " 398 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]); 399 400 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE | 401 IDC_HEARTBEAT_FAILURE)) { 402 ha->flags.nic_core_hung = 1; 403 ql_log(ql_log_warn, vha, 0x5060, 404 "83XX: F/W Error Reported: Check if reset required.\n"); 405 406 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) { 407 uint32_t protocol_engine_id, fw_err_code, err_level; 408 409 /* 410 * IDC_PEG_HALT_STATUS_CHANGE interpretation: 411 * - PEG-Halt Status-1 Register: 412 * (LSW = mb[2], MSW = mb[6]) 413 * Bits 0-7 = protocol-engine ID 414 * Bits 8-28 = f/w error code 415 * Bits 29-31 = Error-level 416 * Error-level 0x1 = Non-Fatal error 417 * Error-level 0x2 = Recoverable Fatal error 418 * Error-level 0x4 = UnRecoverable Fatal error 419 * - PEG-Halt Status-2 Register: 420 * (LSW = mb[3], MSW = mb[7]) 421 */ 422 protocol_engine_id = (mb[2] & 0xff); 423 fw_err_code = (((mb[2] & 0xff00) >> 8) | 424 ((mb[6] & 0x1fff) << 8)); 425 err_level = ((mb[6] & 0xe000) >> 13); 426 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 " 427 "Register: protocol_engine_id=0x%x " 428 "fw_err_code=0x%x err_level=0x%x.\n", 429 protocol_engine_id, fw_err_code, err_level); 430 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 " 431 "Register: 0x%x%x.\n", mb[7], mb[3]); 432 if (err_level == ERR_LEVEL_NON_FATAL) { 433 ql_log(ql_log_warn, vha, 0x5063, 434 "Not a fatal error, f/w has recovered " 435 "iteself.\n"); 436 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) { 437 ql_log(ql_log_fatal, vha, 0x5064, 438 "Recoverable Fatal error: Chip reset " 439 "required.\n"); 440 qla83xx_schedule_work(vha, 441 QLA83XX_NIC_CORE_RESET); 442 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) { 443 ql_log(ql_log_fatal, vha, 0x5065, 444 "Unrecoverable Fatal error: Set FAILED " 445 "state, reboot required.\n"); 446 qla83xx_schedule_work(vha, 447 QLA83XX_NIC_CORE_UNRECOVERABLE); 448 } 449 } 450 451 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) { 452 uint16_t peg_fw_state, nw_interface_link_up; 453 uint16_t nw_interface_signal_detect, sfp_status; 454 uint16_t htbt_counter, htbt_monitor_enable; 455 uint16_t sfp_additonal_info, sfp_multirate; 456 uint16_t sfp_tx_fault, link_speed, dcbx_status; 457 458 /* 459 * IDC_NIC_FW_REPORTED_FAILURE interpretation: 460 * - PEG-to-FC Status Register: 461 * (LSW = mb[2], MSW = mb[6]) 462 * Bits 0-7 = Peg-Firmware state 463 * Bit 8 = N/W Interface Link-up 464 * Bit 9 = N/W Interface signal detected 465 * Bits 10-11 = SFP Status 466 * SFP Status 0x0 = SFP+ transceiver not expected 467 * SFP Status 0x1 = SFP+ transceiver not present 468 * SFP Status 0x2 = SFP+ transceiver invalid 469 * SFP Status 0x3 = SFP+ transceiver present and 470 * valid 471 * Bits 12-14 = Heartbeat Counter 472 * Bit 15 = Heartbeat Monitor Enable 473 * Bits 16-17 = SFP Additional Info 474 * SFP info 0x0 = Unregocnized transceiver for 475 * Ethernet 476 * SFP info 0x1 = SFP+ brand validation failed 477 * SFP info 0x2 = SFP+ speed validation failed 478 * SFP info 0x3 = SFP+ access error 479 * Bit 18 = SFP Multirate 480 * Bit 19 = SFP Tx Fault 481 * Bits 20-22 = Link Speed 482 * Bits 23-27 = Reserved 483 * Bits 28-30 = DCBX Status 484 * DCBX Status 0x0 = DCBX Disabled 485 * DCBX Status 0x1 = DCBX Enabled 486 * DCBX Status 0x2 = DCBX Exchange error 487 * Bit 31 = Reserved 488 */ 489 peg_fw_state = (mb[2] & 0x00ff); 490 nw_interface_link_up = ((mb[2] & 0x0100) >> 8); 491 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9); 492 sfp_status = ((mb[2] & 0x0c00) >> 10); 493 htbt_counter = ((mb[2] & 0x7000) >> 12); 494 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15); 495 sfp_additonal_info = (mb[6] & 0x0003); 496 sfp_multirate = ((mb[6] & 0x0004) >> 2); 497 sfp_tx_fault = ((mb[6] & 0x0008) >> 3); 498 link_speed = ((mb[6] & 0x0070) >> 4); 499 dcbx_status = ((mb[6] & 0x7000) >> 12); 500 501 ql_log(ql_log_warn, vha, 0x5066, 502 "Peg-to-Fc Status Register:\n" 503 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, " 504 "nw_interface_signal_detect=0x%x" 505 "\nsfp_statis=0x%x.\n ", peg_fw_state, 506 nw_interface_link_up, nw_interface_signal_detect, 507 sfp_status); 508 ql_log(ql_log_warn, vha, 0x5067, 509 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, " 510 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ", 511 htbt_counter, htbt_monitor_enable, 512 sfp_additonal_info, sfp_multirate); 513 ql_log(ql_log_warn, vha, 0x5068, 514 "sfp_tx_fault=0x%x, link_state=0x%x, " 515 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed, 516 dcbx_status); 517 518 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 519 } 520 521 if (mb[1] & IDC_HEARTBEAT_FAILURE) { 522 ql_log(ql_log_warn, vha, 0x5069, 523 "Heartbeat Failure encountered, chip reset " 524 "required.\n"); 525 526 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 527 } 528 } 529 530 if (mb[1] & IDC_DEVICE_STATE_CHANGE) { 531 ql_log(ql_log_info, vha, 0x506a, 532 "IDC Device-State changed = 0x%x.\n", mb[4]); 533 if (ha->flags.nic_core_reset_owner) 534 return; 535 qla83xx_schedule_work(vha, MBA_IDC_AEN); 536 } 537 } 538 539 int 540 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry) 541 { 542 struct qla_hw_data *ha = vha->hw; 543 scsi_qla_host_t *vp; 544 uint32_t vp_did; 545 unsigned long flags; 546 int ret = 0; 547 548 if (!ha->num_vhosts) 549 return ret; 550 551 spin_lock_irqsave(&ha->vport_slock, flags); 552 list_for_each_entry(vp, &ha->vp_list, list) { 553 vp_did = vp->d_id.b24; 554 if (vp_did == rscn_entry) { 555 ret = 1; 556 break; 557 } 558 } 559 spin_unlock_irqrestore(&ha->vport_slock, flags); 560 561 return ret; 562 } 563 564 static inline fc_port_t * 565 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id) 566 { 567 fc_port_t *fcport; 568 569 list_for_each_entry(fcport, &vha->vp_fcports, list) 570 if (fcport->loop_id == loop_id) 571 return fcport; 572 return NULL; 573 } 574 575 /** 576 * qla2x00_async_event() - Process aynchronous events. 577 * @ha: SCSI driver HA context 578 * @mb: Mailbox registers (0 - 3) 579 */ 580 void 581 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) 582 { 583 uint16_t handle_cnt; 584 uint16_t cnt, mbx; 585 uint32_t handles[5]; 586 struct qla_hw_data *ha = vha->hw; 587 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 588 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; 589 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; 590 uint32_t rscn_entry, host_pid; 591 unsigned long flags; 592 fc_port_t *fcport = NULL; 593 594 /* Setup to process RIO completion. */ 595 handle_cnt = 0; 596 if (IS_CNA_CAPABLE(ha)) 597 goto skip_rio; 598 switch (mb[0]) { 599 case MBA_SCSI_COMPLETION: 600 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 601 handle_cnt = 1; 602 break; 603 case MBA_CMPLT_1_16BIT: 604 handles[0] = mb[1]; 605 handle_cnt = 1; 606 mb[0] = MBA_SCSI_COMPLETION; 607 break; 608 case MBA_CMPLT_2_16BIT: 609 handles[0] = mb[1]; 610 handles[1] = mb[2]; 611 handle_cnt = 2; 612 mb[0] = MBA_SCSI_COMPLETION; 613 break; 614 case MBA_CMPLT_3_16BIT: 615 handles[0] = mb[1]; 616 handles[1] = mb[2]; 617 handles[2] = mb[3]; 618 handle_cnt = 3; 619 mb[0] = MBA_SCSI_COMPLETION; 620 break; 621 case MBA_CMPLT_4_16BIT: 622 handles[0] = mb[1]; 623 handles[1] = mb[2]; 624 handles[2] = mb[3]; 625 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 626 handle_cnt = 4; 627 mb[0] = MBA_SCSI_COMPLETION; 628 break; 629 case MBA_CMPLT_5_16BIT: 630 handles[0] = mb[1]; 631 handles[1] = mb[2]; 632 handles[2] = mb[3]; 633 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 634 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 635 handle_cnt = 5; 636 mb[0] = MBA_SCSI_COMPLETION; 637 break; 638 case MBA_CMPLT_2_32BIT: 639 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 640 handles[1] = le32_to_cpu( 641 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 642 RD_MAILBOX_REG(ha, reg, 6)); 643 handle_cnt = 2; 644 mb[0] = MBA_SCSI_COMPLETION; 645 break; 646 default: 647 break; 648 } 649 skip_rio: 650 switch (mb[0]) { 651 case MBA_SCSI_COMPLETION: /* Fast Post */ 652 if (!vha->flags.online) 653 break; 654 655 for (cnt = 0; cnt < handle_cnt; cnt++) 656 qla2x00_process_completed_request(vha, rsp->req, 657 handles[cnt]); 658 break; 659 660 case MBA_RESET: /* Reset */ 661 ql_dbg(ql_dbg_async, vha, 0x5002, 662 "Asynchronous RESET.\n"); 663 664 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 665 break; 666 667 case MBA_SYSTEM_ERR: /* System Error */ 668 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ? 669 RD_REG_WORD(®24->mailbox7) : 0; 670 ql_log(ql_log_warn, vha, 0x5003, 671 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh " 672 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); 673 674 ha->isp_ops->fw_dump(vha, 1); 675 676 if (IS_FWI2_CAPABLE(ha)) { 677 if (mb[1] == 0 && mb[2] == 0) { 678 ql_log(ql_log_fatal, vha, 0x5004, 679 "Unrecoverable Hardware Error: adapter " 680 "marked OFFLINE!\n"); 681 vha->flags.online = 0; 682 vha->device_flags |= DFLG_DEV_FAILED; 683 } else { 684 /* Check to see if MPI timeout occurred */ 685 if ((mbx & MBX_3) && (ha->port_no == 0)) 686 set_bit(MPI_RESET_NEEDED, 687 &vha->dpc_flags); 688 689 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 690 } 691 } else if (mb[1] == 0) { 692 ql_log(ql_log_fatal, vha, 0x5005, 693 "Unrecoverable Hardware Error: adapter marked " 694 "OFFLINE!\n"); 695 vha->flags.online = 0; 696 vha->device_flags |= DFLG_DEV_FAILED; 697 } else 698 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 699 break; 700 701 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 702 ql_log(ql_log_warn, vha, 0x5006, 703 "ISP Request Transfer Error (%x).\n", mb[1]); 704 705 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 706 break; 707 708 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 709 ql_log(ql_log_warn, vha, 0x5007, 710 "ISP Response Transfer Error (%x).\n", mb[1]); 711 712 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 713 break; 714 715 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 716 ql_dbg(ql_dbg_async, vha, 0x5008, 717 "Asynchronous WAKEUP_THRES (%x).\n", mb[1]); 718 break; 719 720 case MBA_LOOP_INIT_ERR: 721 ql_log(ql_log_warn, vha, 0x5090, 722 "LOOP INIT ERROR (%x).\n", mb[1]); 723 ha->isp_ops->fw_dump(vha, 1); 724 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 725 break; 726 727 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 728 ql_dbg(ql_dbg_async, vha, 0x5009, 729 "LIP occurred (%x).\n", mb[1]); 730 731 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 732 atomic_set(&vha->loop_state, LOOP_DOWN); 733 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 734 qla2x00_mark_all_devices_lost(vha, 1); 735 } 736 737 if (vha->vp_idx) { 738 atomic_set(&vha->vp_state, VP_FAILED); 739 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 740 } 741 742 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 743 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 744 745 vha->flags.management_server_logged_in = 0; 746 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 747 break; 748 749 case MBA_LOOP_UP: /* Loop Up Event */ 750 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 751 ha->link_data_rate = PORT_SPEED_1GB; 752 else 753 ha->link_data_rate = mb[1]; 754 755 ql_log(ql_log_info, vha, 0x500a, 756 "LOOP UP detected (%s Gbps).\n", 757 qla2x00_get_link_speed_str(ha, ha->link_data_rate)); 758 759 vha->flags.management_server_logged_in = 0; 760 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 761 break; 762 763 case MBA_LOOP_DOWN: /* Loop Down Event */ 764 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha)) 765 ? RD_REG_WORD(®24->mailbox4) : 0; 766 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4]) 767 : mbx; 768 ql_log(ql_log_info, vha, 0x500b, 769 "LOOP DOWN detected (%x %x %x %x).\n", 770 mb[1], mb[2], mb[3], mbx); 771 772 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 773 atomic_set(&vha->loop_state, LOOP_DOWN); 774 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 775 /* 776 * In case of loop down, restore WWPN from 777 * NVRAM in case of FA-WWPN capable ISP 778 * Restore for Physical Port only 779 */ 780 if (!vha->vp_idx) { 781 if (ha->flags.fawwpn_enabled) { 782 void *wwpn = ha->init_cb->port_name; 783 memcpy(vha->port_name, wwpn, WWN_SIZE); 784 fc_host_port_name(vha->host) = 785 wwn_to_u64(vha->port_name); 786 ql_dbg(ql_dbg_init + ql_dbg_verbose, 787 vha, 0x0144, "LOOP DOWN detected," 788 "restore WWPN %016llx\n", 789 wwn_to_u64(vha->port_name)); 790 } 791 792 clear_bit(VP_CONFIG_OK, &vha->vp_flags); 793 } 794 795 vha->device_flags |= DFLG_NO_CABLE; 796 qla2x00_mark_all_devices_lost(vha, 1); 797 } 798 799 if (vha->vp_idx) { 800 atomic_set(&vha->vp_state, VP_FAILED); 801 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 802 } 803 804 vha->flags.management_server_logged_in = 0; 805 ha->link_data_rate = PORT_SPEED_UNKNOWN; 806 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 807 break; 808 809 case MBA_LIP_RESET: /* LIP reset occurred */ 810 ql_dbg(ql_dbg_async, vha, 0x500c, 811 "LIP reset occurred (%x).\n", mb[1]); 812 813 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 814 atomic_set(&vha->loop_state, LOOP_DOWN); 815 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 816 qla2x00_mark_all_devices_lost(vha, 1); 817 } 818 819 if (vha->vp_idx) { 820 atomic_set(&vha->vp_state, VP_FAILED); 821 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 822 } 823 824 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 825 826 ha->operating_mode = LOOP; 827 vha->flags.management_server_logged_in = 0; 828 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 829 break; 830 831 /* case MBA_DCBX_COMPLETE: */ 832 case MBA_POINT_TO_POINT: /* Point-to-Point */ 833 if (IS_QLA2100(ha)) 834 break; 835 836 if (IS_CNA_CAPABLE(ha)) { 837 ql_dbg(ql_dbg_async, vha, 0x500d, 838 "DCBX Completed -- %04x %04x %04x.\n", 839 mb[1], mb[2], mb[3]); 840 if (ha->notify_dcbx_comp && !vha->vp_idx) 841 complete(&ha->dcbx_comp); 842 843 } else 844 ql_dbg(ql_dbg_async, vha, 0x500e, 845 "Asynchronous P2P MODE received.\n"); 846 847 /* 848 * Until there's a transition from loop down to loop up, treat 849 * this as loop down only. 850 */ 851 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 852 atomic_set(&vha->loop_state, LOOP_DOWN); 853 if (!atomic_read(&vha->loop_down_timer)) 854 atomic_set(&vha->loop_down_timer, 855 LOOP_DOWN_TIME); 856 qla2x00_mark_all_devices_lost(vha, 1); 857 } 858 859 if (vha->vp_idx) { 860 atomic_set(&vha->vp_state, VP_FAILED); 861 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 862 } 863 864 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 865 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 866 867 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 868 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 869 870 ha->flags.gpsc_supported = 1; 871 vha->flags.management_server_logged_in = 0; 872 break; 873 874 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 875 if (IS_QLA2100(ha)) 876 break; 877 878 ql_dbg(ql_dbg_async, vha, 0x500f, 879 "Configuration change detected: value=%x.\n", mb[1]); 880 881 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 882 atomic_set(&vha->loop_state, LOOP_DOWN); 883 if (!atomic_read(&vha->loop_down_timer)) 884 atomic_set(&vha->loop_down_timer, 885 LOOP_DOWN_TIME); 886 qla2x00_mark_all_devices_lost(vha, 1); 887 } 888 889 if (vha->vp_idx) { 890 atomic_set(&vha->vp_state, VP_FAILED); 891 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 892 } 893 894 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 895 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 896 break; 897 898 case MBA_PORT_UPDATE: /* Port database update */ 899 /* 900 * Handle only global and vn-port update events 901 * 902 * Relevant inputs: 903 * mb[1] = N_Port handle of changed port 904 * OR 0xffff for global event 905 * mb[2] = New login state 906 * 7 = Port logged out 907 * mb[3] = LSB is vp_idx, 0xff = all vps 908 * 909 * Skip processing if: 910 * Event is global, vp_idx is NOT all vps, 911 * vp_idx does not match 912 * Event is not global, vp_idx does not match 913 */ 914 if (IS_QLA2XXX_MIDTYPE(ha) && 915 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 916 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 917 break; 918 919 if (mb[2] == 0x7) { 920 ql_dbg(ql_dbg_async, vha, 0x5010, 921 "Port %s %04x %04x %04x.\n", 922 mb[1] == 0xffff ? "unavailable" : "logout", 923 mb[1], mb[2], mb[3]); 924 925 if (mb[1] == 0xffff) 926 goto global_port_update; 927 928 /* Port logout */ 929 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]); 930 if (!fcport) 931 break; 932 if (atomic_read(&fcport->state) != FCS_ONLINE) 933 break; 934 ql_dbg(ql_dbg_async, vha, 0x508a, 935 "Marking port lost loopid=%04x portid=%06x.\n", 936 fcport->loop_id, fcport->d_id.b24); 937 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 938 break; 939 940 global_port_update: 941 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 942 atomic_set(&vha->loop_state, LOOP_DOWN); 943 atomic_set(&vha->loop_down_timer, 944 LOOP_DOWN_TIME); 945 vha->device_flags |= DFLG_NO_CABLE; 946 qla2x00_mark_all_devices_lost(vha, 1); 947 } 948 949 if (vha->vp_idx) { 950 atomic_set(&vha->vp_state, VP_FAILED); 951 fc_vport_set_state(vha->fc_vport, 952 FC_VPORT_FAILED); 953 qla2x00_mark_all_devices_lost(vha, 1); 954 } 955 956 vha->flags.management_server_logged_in = 0; 957 ha->link_data_rate = PORT_SPEED_UNKNOWN; 958 break; 959 } 960 961 /* 962 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 963 * event etc. earlier indicating loop is down) then process 964 * it. Otherwise ignore it and Wait for RSCN to come in. 965 */ 966 atomic_set(&vha->loop_down_timer, 0); 967 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 968 atomic_read(&vha->loop_state) != LOOP_DEAD) { 969 ql_dbg(ql_dbg_async, vha, 0x5011, 970 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n", 971 mb[1], mb[2], mb[3]); 972 973 qlt_async_event(mb[0], vha, mb); 974 break; 975 } 976 977 ql_dbg(ql_dbg_async, vha, 0x5012, 978 "Port database changed %04x %04x %04x.\n", 979 mb[1], mb[2], mb[3]); 980 981 /* 982 * Mark all devices as missing so we will login again. 983 */ 984 atomic_set(&vha->loop_state, LOOP_UP); 985 986 qla2x00_mark_all_devices_lost(vha, 1); 987 988 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha)) 989 set_bit(SCR_PENDING, &vha->dpc_flags); 990 991 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 992 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 993 set_bit(VP_CONFIG_OK, &vha->vp_flags); 994 995 qlt_async_event(mb[0], vha, mb); 996 break; 997 998 case MBA_RSCN_UPDATE: /* State Change Registration */ 999 /* Check if the Vport has issued a SCR */ 1000 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 1001 break; 1002 /* Only handle SCNs for our Vport index. */ 1003 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 1004 break; 1005 1006 ql_dbg(ql_dbg_async, vha, 0x5013, 1007 "RSCN database changed -- %04x %04x %04x.\n", 1008 mb[1], mb[2], mb[3]); 1009 1010 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 1011 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 1012 | vha->d_id.b.al_pa; 1013 if (rscn_entry == host_pid) { 1014 ql_dbg(ql_dbg_async, vha, 0x5014, 1015 "Ignoring RSCN update to local host " 1016 "port ID (%06x).\n", host_pid); 1017 break; 1018 } 1019 1020 /* Ignore reserved bits from RSCN-payload. */ 1021 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 1022 1023 /* Skip RSCNs for virtual ports on the same physical port */ 1024 if (qla2x00_is_a_vp_did(vha, rscn_entry)) 1025 break; 1026 1027 /* 1028 * Search for the rport related to this RSCN entry and mark it 1029 * as lost. 1030 */ 1031 list_for_each_entry(fcport, &vha->vp_fcports, list) { 1032 if (atomic_read(&fcport->state) != FCS_ONLINE) 1033 continue; 1034 if (fcport->d_id.b24 == rscn_entry) { 1035 qla2x00_mark_device_lost(vha, fcport, 0, 0); 1036 break; 1037 } 1038 } 1039 1040 atomic_set(&vha->loop_down_timer, 0); 1041 vha->flags.management_server_logged_in = 0; 1042 1043 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 1044 set_bit(RSCN_UPDATE, &vha->dpc_flags); 1045 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 1046 break; 1047 1048 /* case MBA_RIO_RESPONSE: */ 1049 case MBA_ZIO_RESPONSE: 1050 ql_dbg(ql_dbg_async, vha, 0x5015, 1051 "[R|Z]IO update completion.\n"); 1052 1053 if (IS_FWI2_CAPABLE(ha)) 1054 qla24xx_process_response_queue(vha, rsp); 1055 else 1056 qla2x00_process_response_queue(rsp); 1057 break; 1058 1059 case MBA_DISCARD_RND_FRAME: 1060 ql_dbg(ql_dbg_async, vha, 0x5016, 1061 "Discard RND Frame -- %04x %04x %04x.\n", 1062 mb[1], mb[2], mb[3]); 1063 break; 1064 1065 case MBA_TRACE_NOTIFICATION: 1066 ql_dbg(ql_dbg_async, vha, 0x5017, 1067 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]); 1068 break; 1069 1070 case MBA_ISP84XX_ALERT: 1071 ql_dbg(ql_dbg_async, vha, 0x5018, 1072 "ISP84XX Alert Notification -- %04x %04x %04x.\n", 1073 mb[1], mb[2], mb[3]); 1074 1075 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 1076 switch (mb[1]) { 1077 case A84_PANIC_RECOVERY: 1078 ql_log(ql_log_info, vha, 0x5019, 1079 "Alert 84XX: panic recovery %04x %04x.\n", 1080 mb[2], mb[3]); 1081 break; 1082 case A84_OP_LOGIN_COMPLETE: 1083 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 1084 ql_log(ql_log_info, vha, 0x501a, 1085 "Alert 84XX: firmware version %x.\n", 1086 ha->cs84xx->op_fw_version); 1087 break; 1088 case A84_DIAG_LOGIN_COMPLETE: 1089 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1090 ql_log(ql_log_info, vha, 0x501b, 1091 "Alert 84XX: diagnostic firmware version %x.\n", 1092 ha->cs84xx->diag_fw_version); 1093 break; 1094 case A84_GOLD_LOGIN_COMPLETE: 1095 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1096 ha->cs84xx->fw_update = 1; 1097 ql_log(ql_log_info, vha, 0x501c, 1098 "Alert 84XX: gold firmware version %x.\n", 1099 ha->cs84xx->gold_fw_version); 1100 break; 1101 default: 1102 ql_log(ql_log_warn, vha, 0x501d, 1103 "Alert 84xx: Invalid Alert %04x %04x %04x.\n", 1104 mb[1], mb[2], mb[3]); 1105 } 1106 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 1107 break; 1108 case MBA_DCBX_START: 1109 ql_dbg(ql_dbg_async, vha, 0x501e, 1110 "DCBX Started -- %04x %04x %04x.\n", 1111 mb[1], mb[2], mb[3]); 1112 break; 1113 case MBA_DCBX_PARAM_UPDATE: 1114 ql_dbg(ql_dbg_async, vha, 0x501f, 1115 "DCBX Parameters Updated -- %04x %04x %04x.\n", 1116 mb[1], mb[2], mb[3]); 1117 break; 1118 case MBA_FCF_CONF_ERR: 1119 ql_dbg(ql_dbg_async, vha, 0x5020, 1120 "FCF Configuration Error -- %04x %04x %04x.\n", 1121 mb[1], mb[2], mb[3]); 1122 break; 1123 case MBA_IDC_NOTIFY: 1124 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) { 1125 mb[4] = RD_REG_WORD(®24->mailbox4); 1126 if (((mb[2] & 0x7fff) == MBC_PORT_RESET || 1127 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) && 1128 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) { 1129 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 1130 /* 1131 * Extend loop down timer since port is active. 1132 */ 1133 if (atomic_read(&vha->loop_state) == LOOP_DOWN) 1134 atomic_set(&vha->loop_down_timer, 1135 LOOP_DOWN_TIME); 1136 qla2xxx_wake_dpc(vha); 1137 } 1138 } 1139 case MBA_IDC_COMPLETE: 1140 if (ha->notify_lb_portup_comp && !vha->vp_idx) 1141 complete(&ha->lb_portup_comp); 1142 /* Fallthru */ 1143 case MBA_IDC_TIME_EXT: 1144 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || 1145 IS_QLA8044(ha)) 1146 qla81xx_idc_event(vha, mb[0], mb[1]); 1147 break; 1148 1149 case MBA_IDC_AEN: 1150 mb[4] = RD_REG_WORD(®24->mailbox4); 1151 mb[5] = RD_REG_WORD(®24->mailbox5); 1152 mb[6] = RD_REG_WORD(®24->mailbox6); 1153 mb[7] = RD_REG_WORD(®24->mailbox7); 1154 qla83xx_handle_8200_aen(vha, mb); 1155 break; 1156 1157 case MBA_DPORT_DIAGNOSTICS: 1158 ql_dbg(ql_dbg_async, vha, 0x5052, 1159 "D-Port Diagnostics: %04x result=%s\n", 1160 mb[0], 1161 mb[1] == 0 ? "start" : 1162 mb[1] == 1 ? "done (pass)" : 1163 mb[1] == 2 ? "done (error)" : "other"); 1164 break; 1165 1166 case MBA_TEMPERATURE_ALERT: 1167 ql_dbg(ql_dbg_async, vha, 0x505e, 1168 "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]); 1169 if (mb[1] == 0x12) 1170 schedule_work(&ha->board_disable); 1171 break; 1172 1173 default: 1174 ql_dbg(ql_dbg_async, vha, 0x5057, 1175 "Unknown AEN:%04x %04x %04x %04x\n", 1176 mb[0], mb[1], mb[2], mb[3]); 1177 } 1178 1179 qlt_async_event(mb[0], vha, mb); 1180 1181 if (!vha->vp_idx && ha->num_vhosts) 1182 qla2x00_alert_all_vps(rsp, mb); 1183 } 1184 1185 /** 1186 * qla2x00_process_completed_request() - Process a Fast Post response. 1187 * @ha: SCSI driver HA context 1188 * @index: SRB index 1189 */ 1190 void 1191 qla2x00_process_completed_request(struct scsi_qla_host *vha, 1192 struct req_que *req, uint32_t index) 1193 { 1194 srb_t *sp; 1195 struct qla_hw_data *ha = vha->hw; 1196 1197 /* Validate handle. */ 1198 if (index >= req->num_outstanding_cmds) { 1199 ql_log(ql_log_warn, vha, 0x3014, 1200 "Invalid SCSI command index (%x).\n", index); 1201 1202 if (IS_P3P_TYPE(ha)) 1203 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1204 else 1205 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1206 return; 1207 } 1208 1209 sp = req->outstanding_cmds[index]; 1210 if (sp) { 1211 /* Free outstanding command slot. */ 1212 req->outstanding_cmds[index] = NULL; 1213 1214 /* Save ISP completion status */ 1215 sp->done(ha, sp, DID_OK << 16); 1216 } else { 1217 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n"); 1218 1219 if (IS_P3P_TYPE(ha)) 1220 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1221 else 1222 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1223 } 1224 } 1225 1226 srb_t * 1227 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 1228 struct req_que *req, void *iocb) 1229 { 1230 struct qla_hw_data *ha = vha->hw; 1231 sts_entry_t *pkt = iocb; 1232 srb_t *sp = NULL; 1233 uint16_t index; 1234 1235 index = LSW(pkt->handle); 1236 if (index >= req->num_outstanding_cmds) { 1237 ql_log(ql_log_warn, vha, 0x5031, 1238 "Invalid command index (%x).\n", index); 1239 if (IS_P3P_TYPE(ha)) 1240 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1241 else 1242 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1243 goto done; 1244 } 1245 sp = req->outstanding_cmds[index]; 1246 if (!sp) { 1247 ql_log(ql_log_warn, vha, 0x5032, 1248 "Invalid completion handle (%x) -- timed-out.\n", index); 1249 return sp; 1250 } 1251 if (sp->handle != index) { 1252 ql_log(ql_log_warn, vha, 0x5033, 1253 "SRB handle (%x) mismatch %x.\n", sp->handle, index); 1254 return NULL; 1255 } 1256 1257 req->outstanding_cmds[index] = NULL; 1258 1259 done: 1260 return sp; 1261 } 1262 1263 static void 1264 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 1265 struct mbx_entry *mbx) 1266 { 1267 const char func[] = "MBX-IOCB"; 1268 const char *type; 1269 fc_port_t *fcport; 1270 srb_t *sp; 1271 struct srb_iocb *lio; 1272 uint16_t *data; 1273 uint16_t status; 1274 1275 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 1276 if (!sp) 1277 return; 1278 1279 lio = &sp->u.iocb_cmd; 1280 type = sp->name; 1281 fcport = sp->fcport; 1282 data = lio->u.logio.data; 1283 1284 data[0] = MBS_COMMAND_ERROR; 1285 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1286 QLA_LOGIO_LOGIN_RETRIED : 0; 1287 if (mbx->entry_status) { 1288 ql_dbg(ql_dbg_async, vha, 0x5043, 1289 "Async-%s error entry - hdl=%x portid=%02x%02x%02x " 1290 "entry-status=%x status=%x state-flag=%x " 1291 "status-flags=%x.\n", type, sp->handle, 1292 fcport->d_id.b.domain, fcport->d_id.b.area, 1293 fcport->d_id.b.al_pa, mbx->entry_status, 1294 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 1295 le16_to_cpu(mbx->status_flags)); 1296 1297 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029, 1298 (uint8_t *)mbx, sizeof(*mbx)); 1299 1300 goto logio_done; 1301 } 1302 1303 status = le16_to_cpu(mbx->status); 1304 if (status == 0x30 && sp->type == SRB_LOGIN_CMD && 1305 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 1306 status = 0; 1307 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 1308 ql_dbg(ql_dbg_async, vha, 0x5045, 1309 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n", 1310 type, sp->handle, fcport->d_id.b.domain, 1311 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1312 le16_to_cpu(mbx->mb1)); 1313 1314 data[0] = MBS_COMMAND_COMPLETE; 1315 if (sp->type == SRB_LOGIN_CMD) { 1316 fcport->port_type = FCT_TARGET; 1317 if (le16_to_cpu(mbx->mb1) & BIT_0) 1318 fcport->port_type = FCT_INITIATOR; 1319 else if (le16_to_cpu(mbx->mb1) & BIT_1) 1320 fcport->flags |= FCF_FCP2_DEVICE; 1321 } 1322 goto logio_done; 1323 } 1324 1325 data[0] = le16_to_cpu(mbx->mb0); 1326 switch (data[0]) { 1327 case MBS_PORT_ID_USED: 1328 data[1] = le16_to_cpu(mbx->mb1); 1329 break; 1330 case MBS_LOOP_ID_USED: 1331 break; 1332 default: 1333 data[0] = MBS_COMMAND_ERROR; 1334 break; 1335 } 1336 1337 ql_log(ql_log_warn, vha, 0x5046, 1338 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x " 1339 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle, 1340 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, 1341 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 1342 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 1343 le16_to_cpu(mbx->mb7)); 1344 1345 logio_done: 1346 sp->done(vha, sp, 0); 1347 } 1348 1349 static void 1350 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1351 sts_entry_t *pkt, int iocb_type) 1352 { 1353 const char func[] = "CT_IOCB"; 1354 const char *type; 1355 srb_t *sp; 1356 struct bsg_job *bsg_job; 1357 struct fc_bsg_reply *bsg_reply; 1358 uint16_t comp_status; 1359 int res; 1360 1361 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1362 if (!sp) 1363 return; 1364 1365 bsg_job = sp->u.bsg_job; 1366 bsg_reply = bsg_job->reply; 1367 1368 type = "ct pass-through"; 1369 1370 comp_status = le16_to_cpu(pkt->comp_status); 1371 1372 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1373 * fc payload to the caller 1374 */ 1375 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1376 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1377 1378 if (comp_status != CS_COMPLETE) { 1379 if (comp_status == CS_DATA_UNDERRUN) { 1380 res = DID_OK << 16; 1381 bsg_reply->reply_payload_rcv_len = 1382 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1383 1384 ql_log(ql_log_warn, vha, 0x5048, 1385 "CT pass-through-%s error " 1386 "comp_status-status=0x%x total_byte = 0x%x.\n", 1387 type, comp_status, 1388 bsg_reply->reply_payload_rcv_len); 1389 } else { 1390 ql_log(ql_log_warn, vha, 0x5049, 1391 "CT pass-through-%s error " 1392 "comp_status-status=0x%x.\n", type, comp_status); 1393 res = DID_ERROR << 16; 1394 bsg_reply->reply_payload_rcv_len = 0; 1395 } 1396 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035, 1397 (uint8_t *)pkt, sizeof(*pkt)); 1398 } else { 1399 res = DID_OK << 16; 1400 bsg_reply->reply_payload_rcv_len = 1401 bsg_job->reply_payload.payload_len; 1402 bsg_job->reply_len = 0; 1403 } 1404 1405 sp->done(vha, sp, res); 1406 } 1407 1408 static void 1409 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1410 struct sts_entry_24xx *pkt, int iocb_type) 1411 { 1412 const char func[] = "ELS_CT_IOCB"; 1413 const char *type; 1414 srb_t *sp; 1415 struct bsg_job *bsg_job; 1416 struct fc_bsg_reply *bsg_reply; 1417 uint16_t comp_status; 1418 uint32_t fw_status[3]; 1419 uint8_t* fw_sts_ptr; 1420 int res; 1421 1422 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1423 if (!sp) 1424 return; 1425 bsg_job = sp->u.bsg_job; 1426 bsg_reply = bsg_job->reply; 1427 1428 type = NULL; 1429 switch (sp->type) { 1430 case SRB_ELS_CMD_RPT: 1431 case SRB_ELS_CMD_HST: 1432 type = "els"; 1433 break; 1434 case SRB_CT_CMD: 1435 type = "ct pass-through"; 1436 break; 1437 case SRB_ELS_DCMD: 1438 type = "Driver ELS logo"; 1439 ql_dbg(ql_dbg_user, vha, 0x5047, 1440 "Completing %s: (%p) type=%d.\n", type, sp, sp->type); 1441 sp->done(vha, sp, 0); 1442 return; 1443 default: 1444 ql_dbg(ql_dbg_user, vha, 0x503e, 1445 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type); 1446 return; 1447 } 1448 1449 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1450 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1451 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1452 1453 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1454 * fc payload to the caller 1455 */ 1456 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1457 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1458 1459 if (comp_status != CS_COMPLETE) { 1460 if (comp_status == CS_DATA_UNDERRUN) { 1461 res = DID_OK << 16; 1462 bsg_reply->reply_payload_rcv_len = 1463 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count); 1464 1465 ql_dbg(ql_dbg_user, vha, 0x503f, 1466 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1467 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1468 type, sp->handle, comp_status, fw_status[1], fw_status[2], 1469 le16_to_cpu(((struct els_sts_entry_24xx *) 1470 pkt)->total_byte_count)); 1471 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1472 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1473 } 1474 else { 1475 ql_dbg(ql_dbg_user, vha, 0x5040, 1476 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1477 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1478 type, sp->handle, comp_status, 1479 le16_to_cpu(((struct els_sts_entry_24xx *) 1480 pkt)->error_subcode_1), 1481 le16_to_cpu(((struct els_sts_entry_24xx *) 1482 pkt)->error_subcode_2)); 1483 res = DID_ERROR << 16; 1484 bsg_reply->reply_payload_rcv_len = 0; 1485 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1486 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1487 } 1488 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056, 1489 (uint8_t *)pkt, sizeof(*pkt)); 1490 } 1491 else { 1492 res = DID_OK << 16; 1493 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1494 bsg_job->reply_len = 0; 1495 } 1496 1497 sp->done(vha, sp, res); 1498 } 1499 1500 static void 1501 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1502 struct logio_entry_24xx *logio) 1503 { 1504 const char func[] = "LOGIO-IOCB"; 1505 const char *type; 1506 fc_port_t *fcport; 1507 srb_t *sp; 1508 struct srb_iocb *lio; 1509 uint16_t *data; 1510 uint32_t iop[2]; 1511 1512 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1513 if (!sp) 1514 return; 1515 1516 lio = &sp->u.iocb_cmd; 1517 type = sp->name; 1518 fcport = sp->fcport; 1519 data = lio->u.logio.data; 1520 1521 data[0] = MBS_COMMAND_ERROR; 1522 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1523 QLA_LOGIO_LOGIN_RETRIED : 0; 1524 if (logio->entry_status) { 1525 ql_log(ql_log_warn, fcport->vha, 0x5034, 1526 "Async-%s error entry - hdl=%x" 1527 "portid=%02x%02x%02x entry-status=%x.\n", 1528 type, sp->handle, fcport->d_id.b.domain, 1529 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1530 logio->entry_status); 1531 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d, 1532 (uint8_t *)logio, sizeof(*logio)); 1533 1534 goto logio_done; 1535 } 1536 1537 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1538 ql_dbg(ql_dbg_async, fcport->vha, 0x5036, 1539 "Async-%s complete - hdl=%x portid=%02x%02x%02x " 1540 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1541 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1542 le32_to_cpu(logio->io_parameter[0])); 1543 1544 data[0] = MBS_COMMAND_COMPLETE; 1545 if (sp->type != SRB_LOGIN_CMD) 1546 goto logio_done; 1547 1548 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1549 if (iop[0] & BIT_4) { 1550 fcport->port_type = FCT_TARGET; 1551 if (iop[0] & BIT_8) 1552 fcport->flags |= FCF_FCP2_DEVICE; 1553 } else if (iop[0] & BIT_5) 1554 fcport->port_type = FCT_INITIATOR; 1555 1556 if (iop[0] & BIT_7) 1557 fcport->flags |= FCF_CONF_COMP_SUPPORTED; 1558 1559 if (logio->io_parameter[7] || logio->io_parameter[8]) 1560 fcport->supported_classes |= FC_COS_CLASS2; 1561 if (logio->io_parameter[9] || logio->io_parameter[10]) 1562 fcport->supported_classes |= FC_COS_CLASS3; 1563 1564 goto logio_done; 1565 } 1566 1567 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1568 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1569 switch (iop[0]) { 1570 case LSC_SCODE_PORTID_USED: 1571 data[0] = MBS_PORT_ID_USED; 1572 data[1] = LSW(iop[1]); 1573 break; 1574 case LSC_SCODE_NPORT_USED: 1575 data[0] = MBS_LOOP_ID_USED; 1576 break; 1577 default: 1578 data[0] = MBS_COMMAND_ERROR; 1579 break; 1580 } 1581 1582 ql_dbg(ql_dbg_async, fcport->vha, 0x5037, 1583 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x " 1584 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1585 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1586 le16_to_cpu(logio->comp_status), 1587 le32_to_cpu(logio->io_parameter[0]), 1588 le32_to_cpu(logio->io_parameter[1])); 1589 1590 logio_done: 1591 sp->done(vha, sp, 0); 1592 } 1593 1594 static void 1595 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk) 1596 { 1597 const char func[] = "TMF-IOCB"; 1598 const char *type; 1599 fc_port_t *fcport; 1600 srb_t *sp; 1601 struct srb_iocb *iocb; 1602 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; 1603 1604 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); 1605 if (!sp) 1606 return; 1607 1608 iocb = &sp->u.iocb_cmd; 1609 type = sp->name; 1610 fcport = sp->fcport; 1611 iocb->u.tmf.data = QLA_SUCCESS; 1612 1613 if (sts->entry_status) { 1614 ql_log(ql_log_warn, fcport->vha, 0x5038, 1615 "Async-%s error - hdl=%x entry-status(%x).\n", 1616 type, sp->handle, sts->entry_status); 1617 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1618 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) { 1619 ql_log(ql_log_warn, fcport->vha, 0x5039, 1620 "Async-%s error - hdl=%x completion status(%x).\n", 1621 type, sp->handle, sts->comp_status); 1622 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1623 } else if ((le16_to_cpu(sts->scsi_status) & 1624 SS_RESPONSE_INFO_LEN_VALID)) { 1625 if (le32_to_cpu(sts->rsp_data_len) < 4) { 1626 ql_log(ql_log_warn, fcport->vha, 0x503b, 1627 "Async-%s error - hdl=%x not enough response(%d).\n", 1628 type, sp->handle, sts->rsp_data_len); 1629 } else if (sts->data[3]) { 1630 ql_log(ql_log_warn, fcport->vha, 0x503c, 1631 "Async-%s error - hdl=%x response(%x).\n", 1632 type, sp->handle, sts->data[3]); 1633 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1634 } 1635 } 1636 1637 if (iocb->u.tmf.data != QLA_SUCCESS) 1638 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055, 1639 (uint8_t *)sts, sizeof(*sts)); 1640 1641 sp->done(vha, sp, 0); 1642 } 1643 1644 /** 1645 * qla2x00_process_response_queue() - Process response queue entries. 1646 * @ha: SCSI driver HA context 1647 */ 1648 void 1649 qla2x00_process_response_queue(struct rsp_que *rsp) 1650 { 1651 struct scsi_qla_host *vha; 1652 struct qla_hw_data *ha = rsp->hw; 1653 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1654 sts_entry_t *pkt; 1655 uint16_t handle_cnt; 1656 uint16_t cnt; 1657 1658 vha = pci_get_drvdata(ha->pdev); 1659 1660 if (!vha->flags.online) 1661 return; 1662 1663 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1664 pkt = (sts_entry_t *)rsp->ring_ptr; 1665 1666 rsp->ring_index++; 1667 if (rsp->ring_index == rsp->length) { 1668 rsp->ring_index = 0; 1669 rsp->ring_ptr = rsp->ring; 1670 } else { 1671 rsp->ring_ptr++; 1672 } 1673 1674 if (pkt->entry_status != 0) { 1675 qla2x00_error_entry(vha, rsp, pkt); 1676 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1677 wmb(); 1678 continue; 1679 } 1680 1681 switch (pkt->entry_type) { 1682 case STATUS_TYPE: 1683 qla2x00_status_entry(vha, rsp, pkt); 1684 break; 1685 case STATUS_TYPE_21: 1686 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 1687 for (cnt = 0; cnt < handle_cnt; cnt++) { 1688 qla2x00_process_completed_request(vha, rsp->req, 1689 ((sts21_entry_t *)pkt)->handle[cnt]); 1690 } 1691 break; 1692 case STATUS_TYPE_22: 1693 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 1694 for (cnt = 0; cnt < handle_cnt; cnt++) { 1695 qla2x00_process_completed_request(vha, rsp->req, 1696 ((sts22_entry_t *)pkt)->handle[cnt]); 1697 } 1698 break; 1699 case STATUS_CONT_TYPE: 1700 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1701 break; 1702 case MBX_IOCB_TYPE: 1703 qla2x00_mbx_iocb_entry(vha, rsp->req, 1704 (struct mbx_entry *)pkt); 1705 break; 1706 case CT_IOCB_TYPE: 1707 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 1708 break; 1709 default: 1710 /* Type Not Supported. */ 1711 ql_log(ql_log_warn, vha, 0x504a, 1712 "Received unknown response pkt type %x " 1713 "entry status=%x.\n", 1714 pkt->entry_type, pkt->entry_status); 1715 break; 1716 } 1717 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1718 wmb(); 1719 } 1720 1721 /* Adjust ring index */ 1722 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); 1723 } 1724 1725 static inline void 1726 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len, 1727 uint32_t sense_len, struct rsp_que *rsp, int res) 1728 { 1729 struct scsi_qla_host *vha = sp->fcport->vha; 1730 struct scsi_cmnd *cp = GET_CMD_SP(sp); 1731 uint32_t track_sense_len; 1732 1733 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 1734 sense_len = SCSI_SENSE_BUFFERSIZE; 1735 1736 SET_CMD_SENSE_LEN(sp, sense_len); 1737 SET_CMD_SENSE_PTR(sp, cp->sense_buffer); 1738 track_sense_len = sense_len; 1739 1740 if (sense_len > par_sense_len) 1741 sense_len = par_sense_len; 1742 1743 memcpy(cp->sense_buffer, sense_data, sense_len); 1744 1745 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len); 1746 track_sense_len -= sense_len; 1747 SET_CMD_SENSE_LEN(sp, track_sense_len); 1748 1749 if (track_sense_len != 0) { 1750 rsp->status_srb = sp; 1751 cp->result = res; 1752 } 1753 1754 if (sense_len) { 1755 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c, 1756 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n", 1757 sp->fcport->vha->host_no, cp->device->id, cp->device->lun, 1758 cp); 1759 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b, 1760 cp->sense_buffer, sense_len); 1761 } 1762 } 1763 1764 struct scsi_dif_tuple { 1765 __be16 guard; /* Checksum */ 1766 __be16 app_tag; /* APPL identifier */ 1767 __be32 ref_tag; /* Target LBA or indirect LBA */ 1768 }; 1769 1770 /* 1771 * Checks the guard or meta-data for the type of error 1772 * detected by the HBA. In case of errors, we set the 1773 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1774 * to indicate to the kernel that the HBA detected error. 1775 */ 1776 static inline int 1777 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1778 { 1779 struct scsi_qla_host *vha = sp->fcport->vha; 1780 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1781 uint8_t *ap = &sts24->data[12]; 1782 uint8_t *ep = &sts24->data[20]; 1783 uint32_t e_ref_tag, a_ref_tag; 1784 uint16_t e_app_tag, a_app_tag; 1785 uint16_t e_guard, a_guard; 1786 1787 /* 1788 * swab32 of the "data" field in the beginning of qla2x00_status_entry() 1789 * would make guard field appear at offset 2 1790 */ 1791 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2)); 1792 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0)); 1793 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4)); 1794 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2)); 1795 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0)); 1796 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4)); 1797 1798 ql_dbg(ql_dbg_io, vha, 0x3023, 1799 "iocb(s) %p Returned STATUS.\n", sts24); 1800 1801 ql_dbg(ql_dbg_io, vha, 0x3024, 1802 "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1803 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1804 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n", 1805 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1806 a_app_tag, e_app_tag, a_guard, e_guard); 1807 1808 /* 1809 * Ignore sector if: 1810 * For type 3: ref & app tag is all 'f's 1811 * For type 0,1,2: app tag is all 'f's 1812 */ 1813 if ((a_app_tag == 0xffff) && 1814 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) || 1815 (a_ref_tag == 0xffffffff))) { 1816 uint32_t blocks_done, resid; 1817 sector_t lba_s = scsi_get_lba(cmd); 1818 1819 /* 2TB boundary case covered automatically with this */ 1820 blocks_done = e_ref_tag - (uint32_t)lba_s + 1; 1821 1822 resid = scsi_bufflen(cmd) - (blocks_done * 1823 cmd->device->sector_size); 1824 1825 scsi_set_resid(cmd, resid); 1826 cmd->result = DID_OK << 16; 1827 1828 /* Update protection tag */ 1829 if (scsi_prot_sg_count(cmd)) { 1830 uint32_t i, j = 0, k = 0, num_ent; 1831 struct scatterlist *sg; 1832 struct t10_pi_tuple *spt; 1833 1834 /* Patch the corresponding protection tags */ 1835 scsi_for_each_prot_sg(cmd, sg, 1836 scsi_prot_sg_count(cmd), i) { 1837 num_ent = sg_dma_len(sg) / 8; 1838 if (k + num_ent < blocks_done) { 1839 k += num_ent; 1840 continue; 1841 } 1842 j = blocks_done - k - 1; 1843 k = blocks_done; 1844 break; 1845 } 1846 1847 if (k != blocks_done) { 1848 ql_log(ql_log_warn, vha, 0x302f, 1849 "unexpected tag values tag:lba=%x:%llx)\n", 1850 e_ref_tag, (unsigned long long)lba_s); 1851 return 1; 1852 } 1853 1854 spt = page_address(sg_page(sg)) + sg->offset; 1855 spt += j; 1856 1857 spt->app_tag = 0xffff; 1858 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3) 1859 spt->ref_tag = 0xffffffff; 1860 } 1861 1862 return 0; 1863 } 1864 1865 /* check guard */ 1866 if (e_guard != a_guard) { 1867 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1868 0x10, 0x1); 1869 set_driver_byte(cmd, DRIVER_SENSE); 1870 set_host_byte(cmd, DID_ABORT); 1871 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1872 return 1; 1873 } 1874 1875 /* check ref tag */ 1876 if (e_ref_tag != a_ref_tag) { 1877 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1878 0x10, 0x3); 1879 set_driver_byte(cmd, DRIVER_SENSE); 1880 set_host_byte(cmd, DID_ABORT); 1881 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1882 return 1; 1883 } 1884 1885 /* check appl tag */ 1886 if (e_app_tag != a_app_tag) { 1887 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1888 0x10, 0x2); 1889 set_driver_byte(cmd, DRIVER_SENSE); 1890 set_host_byte(cmd, DID_ABORT); 1891 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1892 return 1; 1893 } 1894 1895 return 1; 1896 } 1897 1898 static void 1899 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt, 1900 struct req_que *req, uint32_t index) 1901 { 1902 struct qla_hw_data *ha = vha->hw; 1903 srb_t *sp; 1904 uint16_t comp_status; 1905 uint16_t scsi_status; 1906 uint16_t thread_id; 1907 uint32_t rval = EXT_STATUS_OK; 1908 struct bsg_job *bsg_job = NULL; 1909 struct fc_bsg_request *bsg_request; 1910 struct fc_bsg_reply *bsg_reply; 1911 sts_entry_t *sts; 1912 struct sts_entry_24xx *sts24; 1913 sts = (sts_entry_t *) pkt; 1914 sts24 = (struct sts_entry_24xx *) pkt; 1915 1916 /* Validate handle. */ 1917 if (index >= req->num_outstanding_cmds) { 1918 ql_log(ql_log_warn, vha, 0x70af, 1919 "Invalid SCSI completion handle 0x%x.\n", index); 1920 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1921 return; 1922 } 1923 1924 sp = req->outstanding_cmds[index]; 1925 if (!sp) { 1926 ql_log(ql_log_warn, vha, 0x70b0, 1927 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n", 1928 req->id, index); 1929 1930 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1931 return; 1932 } 1933 1934 /* Free outstanding command slot. */ 1935 req->outstanding_cmds[index] = NULL; 1936 bsg_job = sp->u.bsg_job; 1937 bsg_request = bsg_job->request; 1938 bsg_reply = bsg_job->reply; 1939 1940 if (IS_FWI2_CAPABLE(ha)) { 1941 comp_status = le16_to_cpu(sts24->comp_status); 1942 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1943 } else { 1944 comp_status = le16_to_cpu(sts->comp_status); 1945 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1946 } 1947 1948 thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1]; 1949 switch (comp_status) { 1950 case CS_COMPLETE: 1951 if (scsi_status == 0) { 1952 bsg_reply->reply_payload_rcv_len = 1953 bsg_job->reply_payload.payload_len; 1954 vha->qla_stats.input_bytes += 1955 bsg_reply->reply_payload_rcv_len; 1956 vha->qla_stats.input_requests++; 1957 rval = EXT_STATUS_OK; 1958 } 1959 goto done; 1960 1961 case CS_DATA_OVERRUN: 1962 ql_dbg(ql_dbg_user, vha, 0x70b1, 1963 "Command completed with date overrun thread_id=%d\n", 1964 thread_id); 1965 rval = EXT_STATUS_DATA_OVERRUN; 1966 break; 1967 1968 case CS_DATA_UNDERRUN: 1969 ql_dbg(ql_dbg_user, vha, 0x70b2, 1970 "Command completed with date underrun thread_id=%d\n", 1971 thread_id); 1972 rval = EXT_STATUS_DATA_UNDERRUN; 1973 break; 1974 case CS_BIDIR_RD_OVERRUN: 1975 ql_dbg(ql_dbg_user, vha, 0x70b3, 1976 "Command completed with read data overrun thread_id=%d\n", 1977 thread_id); 1978 rval = EXT_STATUS_DATA_OVERRUN; 1979 break; 1980 1981 case CS_BIDIR_RD_WR_OVERRUN: 1982 ql_dbg(ql_dbg_user, vha, 0x70b4, 1983 "Command completed with read and write data overrun " 1984 "thread_id=%d\n", thread_id); 1985 rval = EXT_STATUS_DATA_OVERRUN; 1986 break; 1987 1988 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN: 1989 ql_dbg(ql_dbg_user, vha, 0x70b5, 1990 "Command completed with read data over and write data " 1991 "underrun thread_id=%d\n", thread_id); 1992 rval = EXT_STATUS_DATA_OVERRUN; 1993 break; 1994 1995 case CS_BIDIR_RD_UNDERRUN: 1996 ql_dbg(ql_dbg_user, vha, 0x70b6, 1997 "Command completed with read data data underrun " 1998 "thread_id=%d\n", thread_id); 1999 rval = EXT_STATUS_DATA_UNDERRUN; 2000 break; 2001 2002 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN: 2003 ql_dbg(ql_dbg_user, vha, 0x70b7, 2004 "Command completed with read data under and write data " 2005 "overrun thread_id=%d\n", thread_id); 2006 rval = EXT_STATUS_DATA_UNDERRUN; 2007 break; 2008 2009 case CS_BIDIR_RD_WR_UNDERRUN: 2010 ql_dbg(ql_dbg_user, vha, 0x70b8, 2011 "Command completed with read and write data underrun " 2012 "thread_id=%d\n", thread_id); 2013 rval = EXT_STATUS_DATA_UNDERRUN; 2014 break; 2015 2016 case CS_BIDIR_DMA: 2017 ql_dbg(ql_dbg_user, vha, 0x70b9, 2018 "Command completed with data DMA error thread_id=%d\n", 2019 thread_id); 2020 rval = EXT_STATUS_DMA_ERR; 2021 break; 2022 2023 case CS_TIMEOUT: 2024 ql_dbg(ql_dbg_user, vha, 0x70ba, 2025 "Command completed with timeout thread_id=%d\n", 2026 thread_id); 2027 rval = EXT_STATUS_TIMEOUT; 2028 break; 2029 default: 2030 ql_dbg(ql_dbg_user, vha, 0x70bb, 2031 "Command completed with completion status=0x%x " 2032 "thread_id=%d\n", comp_status, thread_id); 2033 rval = EXT_STATUS_ERR; 2034 break; 2035 } 2036 bsg_reply->reply_payload_rcv_len = 0; 2037 2038 done: 2039 /* Return the vendor specific reply to API */ 2040 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval; 2041 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 2042 /* Always return DID_OK, bsg will send the vendor specific response 2043 * in this case only */ 2044 sp->done(vha, sp, (DID_OK << 6)); 2045 2046 } 2047 2048 /** 2049 * qla2x00_status_entry() - Process a Status IOCB entry. 2050 * @ha: SCSI driver HA context 2051 * @pkt: Entry pointer 2052 */ 2053 static void 2054 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 2055 { 2056 srb_t *sp; 2057 fc_port_t *fcport; 2058 struct scsi_cmnd *cp; 2059 sts_entry_t *sts; 2060 struct sts_entry_24xx *sts24; 2061 uint16_t comp_status; 2062 uint16_t scsi_status; 2063 uint16_t ox_id; 2064 uint8_t lscsi_status; 2065 int32_t resid; 2066 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 2067 fw_resid_len; 2068 uint8_t *rsp_info, *sense_data; 2069 struct qla_hw_data *ha = vha->hw; 2070 uint32_t handle; 2071 uint16_t que; 2072 struct req_que *req; 2073 int logit = 1; 2074 int res = 0; 2075 uint16_t state_flags = 0; 2076 uint16_t retry_delay = 0; 2077 2078 sts = (sts_entry_t *) pkt; 2079 sts24 = (struct sts_entry_24xx *) pkt; 2080 if (IS_FWI2_CAPABLE(ha)) { 2081 comp_status = le16_to_cpu(sts24->comp_status); 2082 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 2083 state_flags = le16_to_cpu(sts24->state_flags); 2084 } else { 2085 comp_status = le16_to_cpu(sts->comp_status); 2086 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 2087 } 2088 handle = (uint32_t) LSW(sts->handle); 2089 que = MSW(sts->handle); 2090 req = ha->req_q_map[que]; 2091 2092 /* Check for invalid queue pointer */ 2093 if (req == NULL || 2094 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) { 2095 ql_dbg(ql_dbg_io, vha, 0x3059, 2096 "Invalid status handle (0x%x): Bad req pointer. req=%p, " 2097 "que=%u.\n", sts->handle, req, que); 2098 return; 2099 } 2100 2101 /* Validate handle. */ 2102 if (handle < req->num_outstanding_cmds) { 2103 sp = req->outstanding_cmds[handle]; 2104 if (!sp) { 2105 ql_dbg(ql_dbg_io, vha, 0x3075, 2106 "%s(%ld): Already returned command for status handle (0x%x).\n", 2107 __func__, vha->host_no, sts->handle); 2108 return; 2109 } 2110 } else { 2111 ql_dbg(ql_dbg_io, vha, 0x3017, 2112 "Invalid status handle, out of range (0x%x).\n", 2113 sts->handle); 2114 2115 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 2116 if (IS_P3P_TYPE(ha)) 2117 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 2118 else 2119 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2120 qla2xxx_wake_dpc(vha); 2121 } 2122 return; 2123 } 2124 2125 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) { 2126 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle); 2127 return; 2128 } 2129 2130 /* Task Management completion. */ 2131 if (sp->type == SRB_TM_CMD) { 2132 qla24xx_tm_iocb_entry(vha, req, pkt); 2133 return; 2134 } 2135 2136 /* Fast path completion. */ 2137 if (comp_status == CS_COMPLETE && scsi_status == 0) { 2138 qla2x00_process_completed_request(vha, req, handle); 2139 2140 return; 2141 } 2142 2143 req->outstanding_cmds[handle] = NULL; 2144 cp = GET_CMD_SP(sp); 2145 if (cp == NULL) { 2146 ql_dbg(ql_dbg_io, vha, 0x3018, 2147 "Command already returned (0x%x/%p).\n", 2148 sts->handle, sp); 2149 2150 return; 2151 } 2152 2153 lscsi_status = scsi_status & STATUS_MASK; 2154 2155 fcport = sp->fcport; 2156 2157 ox_id = 0; 2158 sense_len = par_sense_len = rsp_info_len = resid_len = 2159 fw_resid_len = 0; 2160 if (IS_FWI2_CAPABLE(ha)) { 2161 if (scsi_status & SS_SENSE_LEN_VALID) 2162 sense_len = le32_to_cpu(sts24->sense_len); 2163 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2164 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 2165 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 2166 resid_len = le32_to_cpu(sts24->rsp_residual_count); 2167 if (comp_status == CS_DATA_UNDERRUN) 2168 fw_resid_len = le32_to_cpu(sts24->residual_len); 2169 rsp_info = sts24->data; 2170 sense_data = sts24->data; 2171 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 2172 ox_id = le16_to_cpu(sts24->ox_id); 2173 par_sense_len = sizeof(sts24->data); 2174 /* Valid values of the retry delay timer are 0x1-0xffef */ 2175 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) 2176 retry_delay = sts24->retry_delay; 2177 } else { 2178 if (scsi_status & SS_SENSE_LEN_VALID) 2179 sense_len = le16_to_cpu(sts->req_sense_length); 2180 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2181 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 2182 resid_len = le32_to_cpu(sts->residual_length); 2183 rsp_info = sts->rsp_info; 2184 sense_data = sts->req_sense_data; 2185 par_sense_len = sizeof(sts->req_sense_data); 2186 } 2187 2188 /* Check for any FCP transport errors. */ 2189 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 2190 /* Sense data lies beyond any FCP RESPONSE data. */ 2191 if (IS_FWI2_CAPABLE(ha)) { 2192 sense_data += rsp_info_len; 2193 par_sense_len -= rsp_info_len; 2194 } 2195 if (rsp_info_len > 3 && rsp_info[3]) { 2196 ql_dbg(ql_dbg_io, fcport->vha, 0x3019, 2197 "FCP I/O protocol failure (0x%x/0x%x).\n", 2198 rsp_info_len, rsp_info[3]); 2199 2200 res = DID_BUS_BUSY << 16; 2201 goto out; 2202 } 2203 } 2204 2205 /* Check for overrun. */ 2206 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 2207 scsi_status & SS_RESIDUAL_OVER) 2208 comp_status = CS_DATA_OVERRUN; 2209 2210 /* 2211 * Check retry_delay_timer value if we receive a busy or 2212 * queue full. 2213 */ 2214 if (lscsi_status == SAM_STAT_TASK_SET_FULL || 2215 lscsi_status == SAM_STAT_BUSY) 2216 qla2x00_set_retry_delay_timestamp(fcport, retry_delay); 2217 2218 /* 2219 * Based on Host and scsi status generate status code for Linux 2220 */ 2221 switch (comp_status) { 2222 case CS_COMPLETE: 2223 case CS_QUEUE_FULL: 2224 if (scsi_status == 0) { 2225 res = DID_OK << 16; 2226 break; 2227 } 2228 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 2229 resid = resid_len; 2230 scsi_set_resid(cp, resid); 2231 2232 if (!lscsi_status && 2233 ((unsigned)(scsi_bufflen(cp) - resid) < 2234 cp->underflow)) { 2235 ql_dbg(ql_dbg_io, fcport->vha, 0x301a, 2236 "Mid-layer underflow " 2237 "detected (0x%x of 0x%x bytes).\n", 2238 resid, scsi_bufflen(cp)); 2239 2240 res = DID_ERROR << 16; 2241 break; 2242 } 2243 } 2244 res = DID_OK << 16 | lscsi_status; 2245 2246 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2247 ql_dbg(ql_dbg_io, fcport->vha, 0x301b, 2248 "QUEUE FULL detected.\n"); 2249 break; 2250 } 2251 logit = 0; 2252 if (lscsi_status != SS_CHECK_CONDITION) 2253 break; 2254 2255 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2256 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2257 break; 2258 2259 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 2260 rsp, res); 2261 break; 2262 2263 case CS_DATA_UNDERRUN: 2264 /* Use F/W calculated residual length. */ 2265 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 2266 scsi_set_resid(cp, resid); 2267 if (scsi_status & SS_RESIDUAL_UNDER) { 2268 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 2269 ql_dbg(ql_dbg_io, fcport->vha, 0x301d, 2270 "Dropped frame(s) detected " 2271 "(0x%x of 0x%x bytes).\n", 2272 resid, scsi_bufflen(cp)); 2273 2274 res = DID_ERROR << 16 | lscsi_status; 2275 goto check_scsi_status; 2276 } 2277 2278 if (!lscsi_status && 2279 ((unsigned)(scsi_bufflen(cp) - resid) < 2280 cp->underflow)) { 2281 ql_dbg(ql_dbg_io, fcport->vha, 0x301e, 2282 "Mid-layer underflow " 2283 "detected (0x%x of 0x%x bytes).\n", 2284 resid, scsi_bufflen(cp)); 2285 2286 res = DID_ERROR << 16; 2287 break; 2288 } 2289 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL && 2290 lscsi_status != SAM_STAT_BUSY) { 2291 /* 2292 * scsi status of task set and busy are considered to be 2293 * task not completed. 2294 */ 2295 2296 ql_dbg(ql_dbg_io, fcport->vha, 0x301f, 2297 "Dropped frame(s) detected (0x%x " 2298 "of 0x%x bytes).\n", resid, 2299 scsi_bufflen(cp)); 2300 2301 res = DID_ERROR << 16 | lscsi_status; 2302 goto check_scsi_status; 2303 } else { 2304 ql_dbg(ql_dbg_io, fcport->vha, 0x3030, 2305 "scsi_status: 0x%x, lscsi_status: 0x%x\n", 2306 scsi_status, lscsi_status); 2307 } 2308 2309 res = DID_OK << 16 | lscsi_status; 2310 logit = 0; 2311 2312 check_scsi_status: 2313 /* 2314 * Check to see if SCSI Status is non zero. If so report SCSI 2315 * Status. 2316 */ 2317 if (lscsi_status != 0) { 2318 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2319 ql_dbg(ql_dbg_io, fcport->vha, 0x3020, 2320 "QUEUE FULL detected.\n"); 2321 logit = 1; 2322 break; 2323 } 2324 if (lscsi_status != SS_CHECK_CONDITION) 2325 break; 2326 2327 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2328 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2329 break; 2330 2331 qla2x00_handle_sense(sp, sense_data, par_sense_len, 2332 sense_len, rsp, res); 2333 } 2334 break; 2335 2336 case CS_PORT_LOGGED_OUT: 2337 case CS_PORT_CONFIG_CHG: 2338 case CS_PORT_BUSY: 2339 case CS_INCOMPLETE: 2340 case CS_PORT_UNAVAILABLE: 2341 case CS_TIMEOUT: 2342 case CS_RESET: 2343 2344 /* 2345 * We are going to have the fc class block the rport 2346 * while we try to recover so instruct the mid layer 2347 * to requeue until the class decides how to handle this. 2348 */ 2349 res = DID_TRANSPORT_DISRUPTED << 16; 2350 2351 if (comp_status == CS_TIMEOUT) { 2352 if (IS_FWI2_CAPABLE(ha)) 2353 break; 2354 else if ((le16_to_cpu(sts->status_flags) & 2355 SF_LOGOUT_SENT) == 0) 2356 break; 2357 } 2358 2359 ql_dbg(ql_dbg_io, fcport->vha, 0x3021, 2360 "Port to be marked lost on fcport=%02x%02x%02x, current " 2361 "port state= %s.\n", fcport->d_id.b.domain, 2362 fcport->d_id.b.area, fcport->d_id.b.al_pa, 2363 port_state_str[atomic_read(&fcport->state)]); 2364 2365 if (atomic_read(&fcport->state) == FCS_ONLINE) 2366 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 2367 break; 2368 2369 case CS_ABORTED: 2370 res = DID_RESET << 16; 2371 break; 2372 2373 case CS_DIF_ERROR: 2374 logit = qla2x00_handle_dif_error(sp, sts24); 2375 res = cp->result; 2376 break; 2377 2378 case CS_TRANSPORT: 2379 res = DID_ERROR << 16; 2380 2381 if (!IS_PI_SPLIT_DET_CAPABLE(ha)) 2382 break; 2383 2384 if (state_flags & BIT_4) 2385 scmd_printk(KERN_WARNING, cp, 2386 "Unsupported device '%s' found.\n", 2387 cp->device->vendor); 2388 break; 2389 2390 default: 2391 res = DID_ERROR << 16; 2392 break; 2393 } 2394 2395 out: 2396 if (logit) 2397 ql_dbg(ql_dbg_io, fcport->vha, 0x3022, 2398 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu " 2399 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x " 2400 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n", 2401 comp_status, scsi_status, res, vha->host_no, 2402 cp->device->id, cp->device->lun, fcport->d_id.b.domain, 2403 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id, 2404 cp->cmnd, scsi_bufflen(cp), rsp_info_len, 2405 resid_len, fw_resid_len, sp, cp); 2406 2407 if (rsp->status_srb == NULL) 2408 sp->done(ha, sp, res); 2409 } 2410 2411 /** 2412 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 2413 * @ha: SCSI driver HA context 2414 * @pkt: Entry pointer 2415 * 2416 * Extended sense data. 2417 */ 2418 static void 2419 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 2420 { 2421 uint8_t sense_sz = 0; 2422 struct qla_hw_data *ha = rsp->hw; 2423 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 2424 srb_t *sp = rsp->status_srb; 2425 struct scsi_cmnd *cp; 2426 uint32_t sense_len; 2427 uint8_t *sense_ptr; 2428 2429 if (!sp || !GET_CMD_SENSE_LEN(sp)) 2430 return; 2431 2432 sense_len = GET_CMD_SENSE_LEN(sp); 2433 sense_ptr = GET_CMD_SENSE_PTR(sp); 2434 2435 cp = GET_CMD_SP(sp); 2436 if (cp == NULL) { 2437 ql_log(ql_log_warn, vha, 0x3025, 2438 "cmd is NULL: already returned to OS (sp=%p).\n", sp); 2439 2440 rsp->status_srb = NULL; 2441 return; 2442 } 2443 2444 if (sense_len > sizeof(pkt->data)) 2445 sense_sz = sizeof(pkt->data); 2446 else 2447 sense_sz = sense_len; 2448 2449 /* Move sense data. */ 2450 if (IS_FWI2_CAPABLE(ha)) 2451 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 2452 memcpy(sense_ptr, pkt->data, sense_sz); 2453 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c, 2454 sense_ptr, sense_sz); 2455 2456 sense_len -= sense_sz; 2457 sense_ptr += sense_sz; 2458 2459 SET_CMD_SENSE_PTR(sp, sense_ptr); 2460 SET_CMD_SENSE_LEN(sp, sense_len); 2461 2462 /* Place command on done queue. */ 2463 if (sense_len == 0) { 2464 rsp->status_srb = NULL; 2465 sp->done(ha, sp, cp->result); 2466 } 2467 } 2468 2469 /** 2470 * qla2x00_error_entry() - Process an error entry. 2471 * @ha: SCSI driver HA context 2472 * @pkt: Entry pointer 2473 */ 2474 static void 2475 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 2476 { 2477 srb_t *sp; 2478 struct qla_hw_data *ha = vha->hw; 2479 const char func[] = "ERROR-IOCB"; 2480 uint16_t que = MSW(pkt->handle); 2481 struct req_que *req = NULL; 2482 int res = DID_ERROR << 16; 2483 2484 ql_dbg(ql_dbg_async, vha, 0x502a, 2485 "type of error status in response: 0x%x\n", pkt->entry_status); 2486 2487 if (que >= ha->max_req_queues || !ha->req_q_map[que]) 2488 goto fatal; 2489 2490 req = ha->req_q_map[que]; 2491 2492 if (pkt->entry_status & RF_BUSY) 2493 res = DID_BUS_BUSY << 16; 2494 2495 if (pkt->entry_type == NOTIFY_ACK_TYPE && 2496 pkt->handle == QLA_TGT_SKIP_HANDLE) 2497 return; 2498 2499 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2500 if (sp) { 2501 sp->done(ha, sp, res); 2502 return; 2503 } 2504 fatal: 2505 ql_log(ql_log_warn, vha, 0x5030, 2506 "Error entry - invalid handle/queue (%04x).\n", que); 2507 } 2508 2509 /** 2510 * qla24xx_mbx_completion() - Process mailbox command completions. 2511 * @ha: SCSI driver HA context 2512 * @mb0: Mailbox0 register 2513 */ 2514 static void 2515 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 2516 { 2517 uint16_t cnt; 2518 uint32_t mboxes; 2519 uint16_t __iomem *wptr; 2520 struct qla_hw_data *ha = vha->hw; 2521 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2522 2523 /* Read all mbox registers? */ 2524 mboxes = (1 << ha->mbx_count) - 1; 2525 if (!ha->mcp) 2526 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n"); 2527 else 2528 mboxes = ha->mcp->in_mb; 2529 2530 /* Load return mailbox registers. */ 2531 ha->flags.mbox_int = 1; 2532 ha->mailbox_out[0] = mb0; 2533 mboxes >>= 1; 2534 wptr = (uint16_t __iomem *)®->mailbox1; 2535 2536 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 2537 if (mboxes & BIT_0) 2538 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 2539 2540 mboxes >>= 1; 2541 wptr++; 2542 } 2543 } 2544 2545 static void 2546 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 2547 struct abort_entry_24xx *pkt) 2548 { 2549 const char func[] = "ABT_IOCB"; 2550 srb_t *sp; 2551 struct srb_iocb *abt; 2552 2553 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2554 if (!sp) 2555 return; 2556 2557 abt = &sp->u.iocb_cmd; 2558 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle); 2559 sp->done(vha, sp, 0); 2560 } 2561 2562 /** 2563 * qla24xx_process_response_queue() - Process response queue entries. 2564 * @ha: SCSI driver HA context 2565 */ 2566 void qla24xx_process_response_queue(struct scsi_qla_host *vha, 2567 struct rsp_que *rsp) 2568 { 2569 struct sts_entry_24xx *pkt; 2570 struct qla_hw_data *ha = vha->hw; 2571 2572 if (!vha->flags.online) 2573 return; 2574 2575 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 2576 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 2577 2578 rsp->ring_index++; 2579 if (rsp->ring_index == rsp->length) { 2580 rsp->ring_index = 0; 2581 rsp->ring_ptr = rsp->ring; 2582 } else { 2583 rsp->ring_ptr++; 2584 } 2585 2586 if (pkt->entry_status != 0) { 2587 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 2588 2589 if (qlt_24xx_process_response_error(vha, pkt)) 2590 goto process_err; 2591 2592 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2593 wmb(); 2594 continue; 2595 } 2596 process_err: 2597 2598 switch (pkt->entry_type) { 2599 case STATUS_TYPE: 2600 qla2x00_status_entry(vha, rsp, pkt); 2601 break; 2602 case STATUS_CONT_TYPE: 2603 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 2604 break; 2605 case VP_RPT_ID_IOCB_TYPE: 2606 qla24xx_report_id_acquisition(vha, 2607 (struct vp_rpt_id_entry_24xx *)pkt); 2608 break; 2609 case LOGINOUT_PORT_IOCB_TYPE: 2610 qla24xx_logio_entry(vha, rsp->req, 2611 (struct logio_entry_24xx *)pkt); 2612 break; 2613 case CT_IOCB_TYPE: 2614 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2615 break; 2616 case ELS_IOCB_TYPE: 2617 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2618 break; 2619 case ABTS_RECV_24XX: 2620 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 2621 /* ensure that the ATIO queue is empty */ 2622 qlt_handle_abts_recv(vha, (response_t *)pkt); 2623 break; 2624 } else { 2625 /* drop through */ 2626 qlt_24xx_process_atio_queue(vha, 1); 2627 } 2628 case ABTS_RESP_24XX: 2629 case CTIO_TYPE7: 2630 case NOTIFY_ACK_TYPE: 2631 case CTIO_CRC2: 2632 qlt_response_pkt_all_vps(vha, (response_t *)pkt); 2633 break; 2634 case MARKER_TYPE: 2635 /* Do nothing in this case, this check is to prevent it 2636 * from falling into default case 2637 */ 2638 break; 2639 case ABORT_IOCB_TYPE: 2640 qla24xx_abort_iocb_entry(vha, rsp->req, 2641 (struct abort_entry_24xx *)pkt); 2642 break; 2643 default: 2644 /* Type Not Supported. */ 2645 ql_dbg(ql_dbg_async, vha, 0x5042, 2646 "Received unknown response pkt type %x " 2647 "entry status=%x.\n", 2648 pkt->entry_type, pkt->entry_status); 2649 break; 2650 } 2651 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2652 wmb(); 2653 } 2654 2655 /* Adjust ring index */ 2656 if (IS_P3P_TYPE(ha)) { 2657 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2658 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2659 } else 2660 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2661 } 2662 2663 static void 2664 qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2665 { 2666 int rval; 2667 uint32_t cnt; 2668 struct qla_hw_data *ha = vha->hw; 2669 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2670 2671 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) && 2672 !IS_QLA27XX(ha)) 2673 return; 2674 2675 rval = QLA_SUCCESS; 2676 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2677 RD_REG_DWORD(®->iobase_addr); 2678 WRT_REG_DWORD(®->iobase_window, 0x0001); 2679 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2680 rval == QLA_SUCCESS; cnt--) { 2681 if (cnt) { 2682 WRT_REG_DWORD(®->iobase_window, 0x0001); 2683 udelay(10); 2684 } else 2685 rval = QLA_FUNCTION_TIMEOUT; 2686 } 2687 if (rval == QLA_SUCCESS) 2688 goto next_test; 2689 2690 rval = QLA_SUCCESS; 2691 WRT_REG_DWORD(®->iobase_window, 0x0003); 2692 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2693 rval == QLA_SUCCESS; cnt--) { 2694 if (cnt) { 2695 WRT_REG_DWORD(®->iobase_window, 0x0003); 2696 udelay(10); 2697 } else 2698 rval = QLA_FUNCTION_TIMEOUT; 2699 } 2700 if (rval != QLA_SUCCESS) 2701 goto done; 2702 2703 next_test: 2704 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2705 ql_log(ql_log_info, vha, 0x504c, 2706 "Additional code -- 0x55AA.\n"); 2707 2708 done: 2709 WRT_REG_DWORD(®->iobase_window, 0x0000); 2710 RD_REG_DWORD(®->iobase_window); 2711 } 2712 2713 /** 2714 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx. 2715 * @irq: 2716 * @dev_id: SCSI driver HA context 2717 * 2718 * Called by system whenever the host adapter generates an interrupt. 2719 * 2720 * Returns handled flag. 2721 */ 2722 irqreturn_t 2723 qla24xx_intr_handler(int irq, void *dev_id) 2724 { 2725 scsi_qla_host_t *vha; 2726 struct qla_hw_data *ha; 2727 struct device_reg_24xx __iomem *reg; 2728 int status; 2729 unsigned long iter; 2730 uint32_t stat; 2731 uint32_t hccr; 2732 uint16_t mb[8]; 2733 struct rsp_que *rsp; 2734 unsigned long flags; 2735 2736 rsp = (struct rsp_que *) dev_id; 2737 if (!rsp) { 2738 ql_log(ql_log_info, NULL, 0x5059, 2739 "%s: NULL response queue pointer.\n", __func__); 2740 return IRQ_NONE; 2741 } 2742 2743 ha = rsp->hw; 2744 reg = &ha->iobase->isp24; 2745 status = 0; 2746 2747 if (unlikely(pci_channel_offline(ha->pdev))) 2748 return IRQ_HANDLED; 2749 2750 spin_lock_irqsave(&ha->hardware_lock, flags); 2751 vha = pci_get_drvdata(ha->pdev); 2752 for (iter = 50; iter--; ) { 2753 stat = RD_REG_DWORD(®->host_status); 2754 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2755 break; 2756 if (stat & HSRX_RISC_PAUSED) { 2757 if (unlikely(pci_channel_offline(ha->pdev))) 2758 break; 2759 2760 hccr = RD_REG_DWORD(®->hccr); 2761 2762 ql_log(ql_log_warn, vha, 0x504b, 2763 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2764 hccr); 2765 2766 qla2xxx_check_risc_status(vha); 2767 2768 ha->isp_ops->fw_dump(vha, 1); 2769 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2770 break; 2771 } else if ((stat & HSRX_RISC_INT) == 0) 2772 break; 2773 2774 switch (stat & 0xff) { 2775 case INTR_ROM_MB_SUCCESS: 2776 case INTR_ROM_MB_FAILED: 2777 case INTR_MB_SUCCESS: 2778 case INTR_MB_FAILED: 2779 qla24xx_mbx_completion(vha, MSW(stat)); 2780 status |= MBX_INTERRUPT; 2781 2782 break; 2783 case INTR_ASYNC_EVENT: 2784 mb[0] = MSW(stat); 2785 mb[1] = RD_REG_WORD(®->mailbox1); 2786 mb[2] = RD_REG_WORD(®->mailbox2); 2787 mb[3] = RD_REG_WORD(®->mailbox3); 2788 qla2x00_async_event(vha, rsp, mb); 2789 break; 2790 case INTR_RSP_QUE_UPDATE: 2791 case INTR_RSP_QUE_UPDATE_83XX: 2792 qla24xx_process_response_queue(vha, rsp); 2793 break; 2794 case INTR_ATIO_QUE_UPDATE:{ 2795 unsigned long flags2; 2796 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2797 qlt_24xx_process_atio_queue(vha, 1); 2798 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2799 break; 2800 } 2801 case INTR_ATIO_RSP_QUE_UPDATE: { 2802 unsigned long flags2; 2803 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2804 qlt_24xx_process_atio_queue(vha, 1); 2805 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2806 2807 qla24xx_process_response_queue(vha, rsp); 2808 break; 2809 } 2810 default: 2811 ql_dbg(ql_dbg_async, vha, 0x504f, 2812 "Unrecognized interrupt type (%d).\n", stat * 0xff); 2813 break; 2814 } 2815 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2816 RD_REG_DWORD_RELAXED(®->hccr); 2817 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1))) 2818 ndelay(3500); 2819 } 2820 qla2x00_handle_mbx_completion(ha, status); 2821 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2822 2823 return IRQ_HANDLED; 2824 } 2825 2826 static irqreturn_t 2827 qla24xx_msix_rsp_q(int irq, void *dev_id) 2828 { 2829 struct qla_hw_data *ha; 2830 struct rsp_que *rsp; 2831 struct device_reg_24xx __iomem *reg; 2832 struct scsi_qla_host *vha; 2833 unsigned long flags; 2834 uint32_t stat = 0; 2835 2836 rsp = (struct rsp_que *) dev_id; 2837 if (!rsp) { 2838 ql_log(ql_log_info, NULL, 0x505a, 2839 "%s: NULL response queue pointer.\n", __func__); 2840 return IRQ_NONE; 2841 } 2842 ha = rsp->hw; 2843 reg = &ha->iobase->isp24; 2844 2845 spin_lock_irqsave(&ha->hardware_lock, flags); 2846 2847 vha = pci_get_drvdata(ha->pdev); 2848 /* 2849 * Use host_status register to check to PCI disconnection before we 2850 * we process the response queue. 2851 */ 2852 stat = RD_REG_DWORD(®->host_status); 2853 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2854 goto out; 2855 qla24xx_process_response_queue(vha, rsp); 2856 if (!ha->flags.disable_msix_handshake) { 2857 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2858 RD_REG_DWORD_RELAXED(®->hccr); 2859 } 2860 out: 2861 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2862 2863 return IRQ_HANDLED; 2864 } 2865 2866 static irqreturn_t 2867 qla24xx_msix_default(int irq, void *dev_id) 2868 { 2869 scsi_qla_host_t *vha; 2870 struct qla_hw_data *ha; 2871 struct rsp_que *rsp; 2872 struct device_reg_24xx __iomem *reg; 2873 int status; 2874 uint32_t stat; 2875 uint32_t hccr; 2876 uint16_t mb[8]; 2877 unsigned long flags; 2878 2879 rsp = (struct rsp_que *) dev_id; 2880 if (!rsp) { 2881 ql_log(ql_log_info, NULL, 0x505c, 2882 "%s: NULL response queue pointer.\n", __func__); 2883 return IRQ_NONE; 2884 } 2885 ha = rsp->hw; 2886 reg = &ha->iobase->isp24; 2887 status = 0; 2888 2889 spin_lock_irqsave(&ha->hardware_lock, flags); 2890 vha = pci_get_drvdata(ha->pdev); 2891 do { 2892 stat = RD_REG_DWORD(®->host_status); 2893 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2894 break; 2895 if (stat & HSRX_RISC_PAUSED) { 2896 if (unlikely(pci_channel_offline(ha->pdev))) 2897 break; 2898 2899 hccr = RD_REG_DWORD(®->hccr); 2900 2901 ql_log(ql_log_info, vha, 0x5050, 2902 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2903 hccr); 2904 2905 qla2xxx_check_risc_status(vha); 2906 2907 ha->isp_ops->fw_dump(vha, 1); 2908 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2909 break; 2910 } else if ((stat & HSRX_RISC_INT) == 0) 2911 break; 2912 2913 switch (stat & 0xff) { 2914 case INTR_ROM_MB_SUCCESS: 2915 case INTR_ROM_MB_FAILED: 2916 case INTR_MB_SUCCESS: 2917 case INTR_MB_FAILED: 2918 qla24xx_mbx_completion(vha, MSW(stat)); 2919 status |= MBX_INTERRUPT; 2920 2921 break; 2922 case INTR_ASYNC_EVENT: 2923 mb[0] = MSW(stat); 2924 mb[1] = RD_REG_WORD(®->mailbox1); 2925 mb[2] = RD_REG_WORD(®->mailbox2); 2926 mb[3] = RD_REG_WORD(®->mailbox3); 2927 qla2x00_async_event(vha, rsp, mb); 2928 break; 2929 case INTR_RSP_QUE_UPDATE: 2930 case INTR_RSP_QUE_UPDATE_83XX: 2931 qla24xx_process_response_queue(vha, rsp); 2932 break; 2933 case INTR_ATIO_QUE_UPDATE:{ 2934 unsigned long flags2; 2935 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2936 qlt_24xx_process_atio_queue(vha, 1); 2937 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2938 break; 2939 } 2940 case INTR_ATIO_RSP_QUE_UPDATE: { 2941 unsigned long flags2; 2942 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2943 qlt_24xx_process_atio_queue(vha, 1); 2944 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2945 2946 qla24xx_process_response_queue(vha, rsp); 2947 break; 2948 } 2949 default: 2950 ql_dbg(ql_dbg_async, vha, 0x5051, 2951 "Unrecognized interrupt type (%d).\n", stat & 0xff); 2952 break; 2953 } 2954 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2955 } while (0); 2956 qla2x00_handle_mbx_completion(ha, status); 2957 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2958 2959 return IRQ_HANDLED; 2960 } 2961 2962 irqreturn_t 2963 qla2xxx_msix_rsp_q(int irq, void *dev_id) 2964 { 2965 struct qla_hw_data *ha; 2966 struct qla_qpair *qpair; 2967 struct device_reg_24xx __iomem *reg; 2968 unsigned long flags; 2969 2970 qpair = dev_id; 2971 if (!qpair) { 2972 ql_log(ql_log_info, NULL, 0x505b, 2973 "%s: NULL response queue pointer.\n", __func__); 2974 return IRQ_NONE; 2975 } 2976 ha = qpair->hw; 2977 2978 /* Clear the interrupt, if enabled, for this response queue */ 2979 if (unlikely(!ha->flags.disable_msix_handshake)) { 2980 reg = &ha->iobase->isp24; 2981 spin_lock_irqsave(&ha->hardware_lock, flags); 2982 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2983 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2984 } 2985 2986 queue_work(ha->wq, &qpair->q_work); 2987 2988 return IRQ_HANDLED; 2989 } 2990 2991 /* Interrupt handling helpers. */ 2992 2993 struct qla_init_msix_entry { 2994 const char *name; 2995 irq_handler_t handler; 2996 }; 2997 2998 static struct qla_init_msix_entry msix_entries[] = { 2999 { "qla2xxx (default)", qla24xx_msix_default }, 3000 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 3001 { "qla2xxx (atio_q)", qla83xx_msix_atio_q }, 3002 { "qla2xxx (qpair_multiq)", qla2xxx_msix_rsp_q }, 3003 }; 3004 3005 static struct qla_init_msix_entry qla82xx_msix_entries[] = { 3006 { "qla2xxx (default)", qla82xx_msix_default }, 3007 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 3008 }; 3009 3010 static int 3011 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 3012 { 3013 int i, ret; 3014 struct qla_msix_entry *qentry; 3015 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3016 struct irq_affinity desc = { 3017 .pre_vectors = QLA_BASE_VECTORS, 3018 }; 3019 3020 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) 3021 desc.pre_vectors++; 3022 3023 ret = pci_alloc_irq_vectors_affinity(ha->pdev, QLA_BASE_VECTORS, 3024 ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY, 3025 &desc); 3026 3027 if (ret < 0) { 3028 ql_log(ql_log_fatal, vha, 0x00c7, 3029 "MSI-X: Failed to enable support, " 3030 "giving up -- %d/%d.\n", 3031 ha->msix_count, ret); 3032 goto msix_out; 3033 } else if (ret < ha->msix_count) { 3034 ql_log(ql_log_warn, vha, 0x00c6, 3035 "MSI-X: Failed to enable support " 3036 "with %d vectors, using %d vectors.\n", 3037 ha->msix_count, ret); 3038 ha->msix_count = ret; 3039 /* Recalculate queue values */ 3040 if (ha->mqiobase && ql2xmqsupport) { 3041 ha->max_req_queues = ha->msix_count - 1; 3042 3043 /* ATIOQ needs 1 vector. That's 1 less QPair */ 3044 if (QLA_TGT_MODE_ENABLED()) 3045 ha->max_req_queues--; 3046 3047 ha->max_rsp_queues = ha->max_req_queues; 3048 3049 ha->max_qpairs = ha->max_req_queues - 1; 3050 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190, 3051 "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs); 3052 } 3053 } 3054 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 3055 ha->msix_count, GFP_KERNEL); 3056 if (!ha->msix_entries) { 3057 ql_log(ql_log_fatal, vha, 0x00c8, 3058 "Failed to allocate memory for ha->msix_entries.\n"); 3059 ret = -ENOMEM; 3060 goto msix_out; 3061 } 3062 ha->flags.msix_enabled = 1; 3063 3064 for (i = 0; i < ha->msix_count; i++) { 3065 qentry = &ha->msix_entries[i]; 3066 qentry->vector = pci_irq_vector(ha->pdev, i); 3067 qentry->entry = i; 3068 qentry->have_irq = 0; 3069 qentry->in_use = 0; 3070 qentry->handle = NULL; 3071 } 3072 3073 /* Enable MSI-X vectors for the base queue */ 3074 for (i = 0; i < QLA_BASE_VECTORS; i++) { 3075 qentry = &ha->msix_entries[i]; 3076 qentry->handle = rsp; 3077 rsp->msix = qentry; 3078 scnprintf(qentry->name, sizeof(qentry->name), 3079 msix_entries[i].name); 3080 if (IS_P3P_TYPE(ha)) 3081 ret = request_irq(qentry->vector, 3082 qla82xx_msix_entries[i].handler, 3083 0, qla82xx_msix_entries[i].name, rsp); 3084 else 3085 ret = request_irq(qentry->vector, 3086 msix_entries[i].handler, 3087 0, msix_entries[i].name, rsp); 3088 if (ret) 3089 goto msix_register_fail; 3090 qentry->have_irq = 1; 3091 qentry->in_use = 1; 3092 } 3093 3094 /* 3095 * If target mode is enable, also request the vector for the ATIO 3096 * queue. 3097 */ 3098 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) { 3099 qentry = &ha->msix_entries[QLA_ATIO_VECTOR]; 3100 rsp->msix = qentry; 3101 qentry->handle = rsp; 3102 scnprintf(qentry->name, sizeof(qentry->name), 3103 msix_entries[QLA_ATIO_VECTOR].name); 3104 qentry->in_use = 1; 3105 ret = request_irq(qentry->vector, 3106 msix_entries[QLA_ATIO_VECTOR].handler, 3107 0, msix_entries[QLA_ATIO_VECTOR].name, rsp); 3108 qentry->have_irq = 1; 3109 } 3110 3111 msix_register_fail: 3112 if (ret) { 3113 ql_log(ql_log_fatal, vha, 0x00cb, 3114 "MSI-X: unable to register handler -- %x/%d.\n", 3115 qentry->vector, ret); 3116 qla2x00_free_irqs(vha); 3117 ha->mqenable = 0; 3118 goto msix_out; 3119 } 3120 3121 /* Enable MSI-X vector for response queue update for queue 0 */ 3122 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 3123 if (ha->msixbase && ha->mqiobase && 3124 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 || 3125 ql2xmqsupport)) 3126 ha->mqenable = 1; 3127 } else 3128 if (ha->mqiobase && 3129 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 || 3130 ql2xmqsupport)) 3131 ha->mqenable = 1; 3132 ql_dbg(ql_dbg_multiq, vha, 0xc005, 3133 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3134 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3135 ql_dbg(ql_dbg_init, vha, 0x0055, 3136 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3137 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3138 3139 msix_out: 3140 return ret; 3141 } 3142 3143 int 3144 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 3145 { 3146 int ret = QLA_FUNCTION_FAILED; 3147 device_reg_t *reg = ha->iobase; 3148 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3149 3150 /* If possible, enable MSI-X. */ 3151 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3152 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) && 3153 !IS_QLA27XX(ha)) 3154 goto skip_msi; 3155 3156 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 3157 (ha->pdev->subsystem_device == 0x7040 || 3158 ha->pdev->subsystem_device == 0x7041 || 3159 ha->pdev->subsystem_device == 0x1705)) { 3160 ql_log(ql_log_warn, vha, 0x0034, 3161 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n", 3162 ha->pdev->subsystem_vendor, 3163 ha->pdev->subsystem_device); 3164 goto skip_msi; 3165 } 3166 3167 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) { 3168 ql_log(ql_log_warn, vha, 0x0035, 3169 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n", 3170 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX); 3171 goto skip_msix; 3172 } 3173 3174 ret = qla24xx_enable_msix(ha, rsp); 3175 if (!ret) { 3176 ql_dbg(ql_dbg_init, vha, 0x0036, 3177 "MSI-X: Enabled (0x%X, 0x%X).\n", 3178 ha->chip_revision, ha->fw_attributes); 3179 goto clear_risc_ints; 3180 } 3181 3182 skip_msix: 3183 3184 ql_log(ql_log_info, vha, 0x0037, 3185 "Falling back-to MSI mode -%d.\n", ret); 3186 3187 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3188 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) && 3189 !IS_QLA27XX(ha)) 3190 goto skip_msi; 3191 3192 ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI); 3193 if (!ret) { 3194 ql_dbg(ql_dbg_init, vha, 0x0038, 3195 "MSI: Enabled.\n"); 3196 ha->flags.msi_enabled = 1; 3197 } else 3198 ql_log(ql_log_warn, vha, 0x0039, 3199 "Falling back-to INTa mode -- %d.\n", ret); 3200 skip_msi: 3201 3202 /* Skip INTx on ISP82xx. */ 3203 if (!ha->flags.msi_enabled && IS_QLA82XX(ha)) 3204 return QLA_FUNCTION_FAILED; 3205 3206 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 3207 ha->flags.msi_enabled ? 0 : IRQF_SHARED, 3208 QLA2XXX_DRIVER_NAME, rsp); 3209 if (ret) { 3210 ql_log(ql_log_warn, vha, 0x003a, 3211 "Failed to reserve interrupt %d already in use.\n", 3212 ha->pdev->irq); 3213 goto fail; 3214 } else if (!ha->flags.msi_enabled) { 3215 ql_dbg(ql_dbg_init, vha, 0x0125, 3216 "INTa mode: Enabled.\n"); 3217 ha->flags.mr_intr_valid = 1; 3218 } 3219 3220 clear_risc_ints: 3221 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha)) 3222 goto fail; 3223 3224 spin_lock_irq(&ha->hardware_lock); 3225 WRT_REG_WORD(®->isp.semaphore, 0); 3226 spin_unlock_irq(&ha->hardware_lock); 3227 3228 fail: 3229 return ret; 3230 } 3231 3232 void 3233 qla2x00_free_irqs(scsi_qla_host_t *vha) 3234 { 3235 struct qla_hw_data *ha = vha->hw; 3236 struct rsp_que *rsp; 3237 struct qla_msix_entry *qentry; 3238 int i; 3239 3240 /* 3241 * We need to check that ha->rsp_q_map is valid in case we are called 3242 * from a probe failure context. 3243 */ 3244 if (!ha->rsp_q_map || !ha->rsp_q_map[0]) 3245 return; 3246 rsp = ha->rsp_q_map[0]; 3247 3248 if (ha->flags.msix_enabled) { 3249 for (i = 0; i < ha->msix_count; i++) { 3250 qentry = &ha->msix_entries[i]; 3251 if (qentry->have_irq) { 3252 irq_set_affinity_notifier(qentry->vector, NULL); 3253 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle); 3254 } 3255 } 3256 kfree(ha->msix_entries); 3257 ha->msix_entries = NULL; 3258 ha->flags.msix_enabled = 0; 3259 ql_dbg(ql_dbg_init, vha, 0x0042, 3260 "Disabled MSI-X.\n"); 3261 } else { 3262 free_irq(pci_irq_vector(ha->pdev, 0), rsp); 3263 } 3264 3265 pci_free_irq_vectors(ha->pdev); 3266 } 3267 3268 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair, 3269 struct qla_msix_entry *msix, int vector_type) 3270 { 3271 struct qla_init_msix_entry *intr = &msix_entries[vector_type]; 3272 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3273 int ret; 3274 3275 scnprintf(msix->name, sizeof(msix->name), 3276 "qla2xxx%lu_qpair%d", vha->host_no, qpair->id); 3277 ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair); 3278 if (ret) { 3279 ql_log(ql_log_fatal, vha, 0x00e6, 3280 "MSI-X: Unable to register handler -- %x/%d.\n", 3281 msix->vector, ret); 3282 return ret; 3283 } 3284 msix->have_irq = 1; 3285 msix->handle = qpair; 3286 return ret; 3287 } 3288