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 <scsi/scsi_tcq.h> 13 #include <scsi/scsi_bsg_fc.h> 14 #include <scsi/scsi_eh.h> 15 16 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 17 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); 18 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *); 19 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *, 20 sts_entry_t *); 21 static void qla_irq_affinity_notify(struct irq_affinity_notify *, 22 const cpumask_t *); 23 static void qla_irq_affinity_release(struct kref *); 24 25 26 /** 27 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 28 * @irq: 29 * @dev_id: SCSI driver HA context 30 * 31 * Called by system whenever the host adapter generates an interrupt. 32 * 33 * Returns handled flag. 34 */ 35 irqreturn_t 36 qla2100_intr_handler(int irq, void *dev_id) 37 { 38 scsi_qla_host_t *vha; 39 struct qla_hw_data *ha; 40 struct device_reg_2xxx __iomem *reg; 41 int status; 42 unsigned long iter; 43 uint16_t hccr; 44 uint16_t mb[4]; 45 struct rsp_que *rsp; 46 unsigned long flags; 47 48 rsp = (struct rsp_que *) dev_id; 49 if (!rsp) { 50 ql_log(ql_log_info, NULL, 0x505d, 51 "%s: NULL response queue pointer.\n", __func__); 52 return (IRQ_NONE); 53 } 54 55 ha = rsp->hw; 56 reg = &ha->iobase->isp; 57 status = 0; 58 59 spin_lock_irqsave(&ha->hardware_lock, flags); 60 vha = pci_get_drvdata(ha->pdev); 61 for (iter = 50; iter--; ) { 62 hccr = RD_REG_WORD(®->hccr); 63 if (qla2x00_check_reg16_for_disconnect(vha, hccr)) 64 break; 65 if (hccr & HCCR_RISC_PAUSE) { 66 if (pci_channel_offline(ha->pdev)) 67 break; 68 69 /* 70 * Issue a "HARD" reset in order for the RISC interrupt 71 * bit to be cleared. Schedule a big hammer to get 72 * out of the RISC PAUSED state. 73 */ 74 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 75 RD_REG_WORD(®->hccr); 76 77 ha->isp_ops->fw_dump(vha, 1); 78 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 79 break; 80 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 81 break; 82 83 if (RD_REG_WORD(®->semaphore) & BIT_0) { 84 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 85 RD_REG_WORD(®->hccr); 86 87 /* Get mailbox data. */ 88 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 89 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 90 qla2x00_mbx_completion(vha, mb[0]); 91 status |= MBX_INTERRUPT; 92 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 93 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 94 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 95 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 96 qla2x00_async_event(vha, rsp, mb); 97 } else { 98 /*EMPTY*/ 99 ql_dbg(ql_dbg_async, vha, 0x5025, 100 "Unrecognized interrupt type (%d).\n", 101 mb[0]); 102 } 103 /* Release mailbox registers. */ 104 WRT_REG_WORD(®->semaphore, 0); 105 RD_REG_WORD(®->semaphore); 106 } else { 107 qla2x00_process_response_queue(rsp); 108 109 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 110 RD_REG_WORD(®->hccr); 111 } 112 } 113 qla2x00_handle_mbx_completion(ha, status); 114 spin_unlock_irqrestore(&ha->hardware_lock, flags); 115 116 return (IRQ_HANDLED); 117 } 118 119 bool 120 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg) 121 { 122 /* Check for PCI disconnection */ 123 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) { 124 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) && 125 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) && 126 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) { 127 /* 128 * Schedule this (only once) on the default system 129 * workqueue so that all the adapter workqueues and the 130 * DPC thread can be shutdown cleanly. 131 */ 132 schedule_work(&vha->hw->board_disable); 133 } 134 return true; 135 } else 136 return false; 137 } 138 139 bool 140 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg) 141 { 142 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg); 143 } 144 145 /** 146 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 147 * @irq: 148 * @dev_id: SCSI driver HA context 149 * 150 * Called by system whenever the host adapter generates an interrupt. 151 * 152 * Returns handled flag. 153 */ 154 irqreturn_t 155 qla2300_intr_handler(int irq, void *dev_id) 156 { 157 scsi_qla_host_t *vha; 158 struct device_reg_2xxx __iomem *reg; 159 int status; 160 unsigned long iter; 161 uint32_t stat; 162 uint16_t hccr; 163 uint16_t mb[4]; 164 struct rsp_que *rsp; 165 struct qla_hw_data *ha; 166 unsigned long flags; 167 168 rsp = (struct rsp_que *) dev_id; 169 if (!rsp) { 170 ql_log(ql_log_info, NULL, 0x5058, 171 "%s: NULL response queue pointer.\n", __func__); 172 return (IRQ_NONE); 173 } 174 175 ha = rsp->hw; 176 reg = &ha->iobase->isp; 177 status = 0; 178 179 spin_lock_irqsave(&ha->hardware_lock, flags); 180 vha = pci_get_drvdata(ha->pdev); 181 for (iter = 50; iter--; ) { 182 stat = RD_REG_DWORD(®->u.isp2300.host_status); 183 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 184 break; 185 if (stat & HSR_RISC_PAUSED) { 186 if (unlikely(pci_channel_offline(ha->pdev))) 187 break; 188 189 hccr = RD_REG_WORD(®->hccr); 190 191 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 192 ql_log(ql_log_warn, vha, 0x5026, 193 "Parity error -- HCCR=%x, Dumping " 194 "firmware.\n", hccr); 195 else 196 ql_log(ql_log_warn, vha, 0x5027, 197 "RISC paused -- HCCR=%x, Dumping " 198 "firmware.\n", hccr); 199 200 /* 201 * Issue a "HARD" reset in order for the RISC 202 * interrupt bit to be cleared. Schedule a big 203 * hammer to get out of the RISC PAUSED state. 204 */ 205 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 206 RD_REG_WORD(®->hccr); 207 208 ha->isp_ops->fw_dump(vha, 1); 209 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 210 break; 211 } else if ((stat & HSR_RISC_INT) == 0) 212 break; 213 214 switch (stat & 0xff) { 215 case 0x1: 216 case 0x2: 217 case 0x10: 218 case 0x11: 219 qla2x00_mbx_completion(vha, MSW(stat)); 220 status |= MBX_INTERRUPT; 221 222 /* Release mailbox registers. */ 223 WRT_REG_WORD(®->semaphore, 0); 224 break; 225 case 0x12: 226 mb[0] = MSW(stat); 227 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 228 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 229 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 230 qla2x00_async_event(vha, rsp, mb); 231 break; 232 case 0x13: 233 qla2x00_process_response_queue(rsp); 234 break; 235 case 0x15: 236 mb[0] = MBA_CMPLT_1_16BIT; 237 mb[1] = MSW(stat); 238 qla2x00_async_event(vha, rsp, mb); 239 break; 240 case 0x16: 241 mb[0] = MBA_SCSI_COMPLETION; 242 mb[1] = MSW(stat); 243 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 244 qla2x00_async_event(vha, rsp, mb); 245 break; 246 default: 247 ql_dbg(ql_dbg_async, vha, 0x5028, 248 "Unrecognized interrupt type (%d).\n", stat & 0xff); 249 break; 250 } 251 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 252 RD_REG_WORD_RELAXED(®->hccr); 253 } 254 qla2x00_handle_mbx_completion(ha, status); 255 spin_unlock_irqrestore(&ha->hardware_lock, flags); 256 257 return (IRQ_HANDLED); 258 } 259 260 /** 261 * qla2x00_mbx_completion() - Process mailbox command completions. 262 * @ha: SCSI driver HA context 263 * @mb0: Mailbox0 register 264 */ 265 static void 266 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 267 { 268 uint16_t cnt; 269 uint32_t mboxes; 270 uint16_t __iomem *wptr; 271 struct qla_hw_data *ha = vha->hw; 272 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 273 274 /* Read all mbox registers? */ 275 mboxes = (1 << ha->mbx_count) - 1; 276 if (!ha->mcp) 277 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n"); 278 else 279 mboxes = ha->mcp->in_mb; 280 281 /* Load return mailbox registers. */ 282 ha->flags.mbox_int = 1; 283 ha->mailbox_out[0] = mb0; 284 mboxes >>= 1; 285 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 286 287 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 288 if (IS_QLA2200(ha) && cnt == 8) 289 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 290 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0)) 291 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 292 else if (mboxes & BIT_0) 293 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 294 295 wptr++; 296 mboxes >>= 1; 297 } 298 } 299 300 static void 301 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) 302 { 303 static char *event[] = 304 { "Complete", "Request Notification", "Time Extension" }; 305 int rval; 306 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24; 307 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82; 308 uint16_t __iomem *wptr; 309 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; 310 311 /* Seed data -- mailbox1 -> mailbox7. */ 312 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw)) 313 wptr = (uint16_t __iomem *)®24->mailbox1; 314 else if (IS_QLA8044(vha->hw)) 315 wptr = (uint16_t __iomem *)®82->mailbox_out[1]; 316 else 317 return; 318 319 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) 320 mb[cnt] = RD_REG_WORD(wptr); 321 322 ql_dbg(ql_dbg_async, vha, 0x5021, 323 "Inter-Driver Communication %s -- " 324 "%04x %04x %04x %04x %04x %04x %04x.\n", 325 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3], 326 mb[4], mb[5], mb[6]); 327 switch (aen) { 328 /* Handle IDC Error completion case. */ 329 case MBA_IDC_COMPLETE: 330 if (mb[1] >> 15) { 331 vha->hw->flags.idc_compl_status = 1; 332 if (vha->hw->notify_dcbx_comp && !vha->vp_idx) 333 complete(&vha->hw->dcbx_comp); 334 } 335 break; 336 337 case MBA_IDC_NOTIFY: 338 /* Acknowledgement needed? [Notify && non-zero timeout]. */ 339 timeout = (descr >> 8) & 0xf; 340 ql_dbg(ql_dbg_async, vha, 0x5022, 341 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n", 342 vha->host_no, event[aen & 0xff], timeout); 343 344 if (!timeout) 345 return; 346 rval = qla2x00_post_idc_ack_work(vha, mb); 347 if (rval != QLA_SUCCESS) 348 ql_log(ql_log_warn, vha, 0x5023, 349 "IDC failed to post ACK.\n"); 350 break; 351 case MBA_IDC_TIME_EXT: 352 vha->hw->idc_extend_tmo = descr; 353 ql_dbg(ql_dbg_async, vha, 0x5087, 354 "%lu Inter-Driver Communication %s -- " 355 "Extend timeout by=%d.\n", 356 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo); 357 break; 358 } 359 } 360 361 #define LS_UNKNOWN 2 362 const char * 363 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed) 364 { 365 static const char *const link_speeds[] = { 366 "1", "2", "?", "4", "8", "16", "32", "10" 367 }; 368 #define QLA_LAST_SPEED 7 369 370 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 371 return link_speeds[0]; 372 else if (speed == 0x13) 373 return link_speeds[QLA_LAST_SPEED]; 374 else if (speed < QLA_LAST_SPEED) 375 return link_speeds[speed]; 376 else 377 return link_speeds[LS_UNKNOWN]; 378 } 379 380 static void 381 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb) 382 { 383 struct qla_hw_data *ha = vha->hw; 384 385 /* 386 * 8200 AEN Interpretation: 387 * mb[0] = AEN code 388 * mb[1] = AEN Reason code 389 * mb[2] = LSW of Peg-Halt Status-1 Register 390 * mb[6] = MSW of Peg-Halt Status-1 Register 391 * mb[3] = LSW of Peg-Halt Status-2 register 392 * mb[7] = MSW of Peg-Halt Status-2 register 393 * mb[4] = IDC Device-State Register value 394 * mb[5] = IDC Driver-Presence Register value 395 */ 396 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: " 397 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n", 398 mb[0], mb[1], mb[2], mb[6]); 399 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x " 400 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x " 401 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]); 402 403 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE | 404 IDC_HEARTBEAT_FAILURE)) { 405 ha->flags.nic_core_hung = 1; 406 ql_log(ql_log_warn, vha, 0x5060, 407 "83XX: F/W Error Reported: Check if reset required.\n"); 408 409 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) { 410 uint32_t protocol_engine_id, fw_err_code, err_level; 411 412 /* 413 * IDC_PEG_HALT_STATUS_CHANGE interpretation: 414 * - PEG-Halt Status-1 Register: 415 * (LSW = mb[2], MSW = mb[6]) 416 * Bits 0-7 = protocol-engine ID 417 * Bits 8-28 = f/w error code 418 * Bits 29-31 = Error-level 419 * Error-level 0x1 = Non-Fatal error 420 * Error-level 0x2 = Recoverable Fatal error 421 * Error-level 0x4 = UnRecoverable Fatal error 422 * - PEG-Halt Status-2 Register: 423 * (LSW = mb[3], MSW = mb[7]) 424 */ 425 protocol_engine_id = (mb[2] & 0xff); 426 fw_err_code = (((mb[2] & 0xff00) >> 8) | 427 ((mb[6] & 0x1fff) << 8)); 428 err_level = ((mb[6] & 0xe000) >> 13); 429 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 " 430 "Register: protocol_engine_id=0x%x " 431 "fw_err_code=0x%x err_level=0x%x.\n", 432 protocol_engine_id, fw_err_code, err_level); 433 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 " 434 "Register: 0x%x%x.\n", mb[7], mb[3]); 435 if (err_level == ERR_LEVEL_NON_FATAL) { 436 ql_log(ql_log_warn, vha, 0x5063, 437 "Not a fatal error, f/w has recovered " 438 "iteself.\n"); 439 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) { 440 ql_log(ql_log_fatal, vha, 0x5064, 441 "Recoverable Fatal error: Chip reset " 442 "required.\n"); 443 qla83xx_schedule_work(vha, 444 QLA83XX_NIC_CORE_RESET); 445 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) { 446 ql_log(ql_log_fatal, vha, 0x5065, 447 "Unrecoverable Fatal error: Set FAILED " 448 "state, reboot required.\n"); 449 qla83xx_schedule_work(vha, 450 QLA83XX_NIC_CORE_UNRECOVERABLE); 451 } 452 } 453 454 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) { 455 uint16_t peg_fw_state, nw_interface_link_up; 456 uint16_t nw_interface_signal_detect, sfp_status; 457 uint16_t htbt_counter, htbt_monitor_enable; 458 uint16_t sfp_additonal_info, sfp_multirate; 459 uint16_t sfp_tx_fault, link_speed, dcbx_status; 460 461 /* 462 * IDC_NIC_FW_REPORTED_FAILURE interpretation: 463 * - PEG-to-FC Status Register: 464 * (LSW = mb[2], MSW = mb[6]) 465 * Bits 0-7 = Peg-Firmware state 466 * Bit 8 = N/W Interface Link-up 467 * Bit 9 = N/W Interface signal detected 468 * Bits 10-11 = SFP Status 469 * SFP Status 0x0 = SFP+ transceiver not expected 470 * SFP Status 0x1 = SFP+ transceiver not present 471 * SFP Status 0x2 = SFP+ transceiver invalid 472 * SFP Status 0x3 = SFP+ transceiver present and 473 * valid 474 * Bits 12-14 = Heartbeat Counter 475 * Bit 15 = Heartbeat Monitor Enable 476 * Bits 16-17 = SFP Additional Info 477 * SFP info 0x0 = Unregocnized transceiver for 478 * Ethernet 479 * SFP info 0x1 = SFP+ brand validation failed 480 * SFP info 0x2 = SFP+ speed validation failed 481 * SFP info 0x3 = SFP+ access error 482 * Bit 18 = SFP Multirate 483 * Bit 19 = SFP Tx Fault 484 * Bits 20-22 = Link Speed 485 * Bits 23-27 = Reserved 486 * Bits 28-30 = DCBX Status 487 * DCBX Status 0x0 = DCBX Disabled 488 * DCBX Status 0x1 = DCBX Enabled 489 * DCBX Status 0x2 = DCBX Exchange error 490 * Bit 31 = Reserved 491 */ 492 peg_fw_state = (mb[2] & 0x00ff); 493 nw_interface_link_up = ((mb[2] & 0x0100) >> 8); 494 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9); 495 sfp_status = ((mb[2] & 0x0c00) >> 10); 496 htbt_counter = ((mb[2] & 0x7000) >> 12); 497 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15); 498 sfp_additonal_info = (mb[6] & 0x0003); 499 sfp_multirate = ((mb[6] & 0x0004) >> 2); 500 sfp_tx_fault = ((mb[6] & 0x0008) >> 3); 501 link_speed = ((mb[6] & 0x0070) >> 4); 502 dcbx_status = ((mb[6] & 0x7000) >> 12); 503 504 ql_log(ql_log_warn, vha, 0x5066, 505 "Peg-to-Fc Status Register:\n" 506 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, " 507 "nw_interface_signal_detect=0x%x" 508 "\nsfp_statis=0x%x.\n ", peg_fw_state, 509 nw_interface_link_up, nw_interface_signal_detect, 510 sfp_status); 511 ql_log(ql_log_warn, vha, 0x5067, 512 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, " 513 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ", 514 htbt_counter, htbt_monitor_enable, 515 sfp_additonal_info, sfp_multirate); 516 ql_log(ql_log_warn, vha, 0x5068, 517 "sfp_tx_fault=0x%x, link_state=0x%x, " 518 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed, 519 dcbx_status); 520 521 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 522 } 523 524 if (mb[1] & IDC_HEARTBEAT_FAILURE) { 525 ql_log(ql_log_warn, vha, 0x5069, 526 "Heartbeat Failure encountered, chip reset " 527 "required.\n"); 528 529 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 530 } 531 } 532 533 if (mb[1] & IDC_DEVICE_STATE_CHANGE) { 534 ql_log(ql_log_info, vha, 0x506a, 535 "IDC Device-State changed = 0x%x.\n", mb[4]); 536 if (ha->flags.nic_core_reset_owner) 537 return; 538 qla83xx_schedule_work(vha, MBA_IDC_AEN); 539 } 540 } 541 542 int 543 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry) 544 { 545 struct qla_hw_data *ha = vha->hw; 546 scsi_qla_host_t *vp; 547 uint32_t vp_did; 548 unsigned long flags; 549 int ret = 0; 550 551 if (!ha->num_vhosts) 552 return ret; 553 554 spin_lock_irqsave(&ha->vport_slock, flags); 555 list_for_each_entry(vp, &ha->vp_list, list) { 556 vp_did = vp->d_id.b24; 557 if (vp_did == rscn_entry) { 558 ret = 1; 559 break; 560 } 561 } 562 spin_unlock_irqrestore(&ha->vport_slock, flags); 563 564 return ret; 565 } 566 567 static inline fc_port_t * 568 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id) 569 { 570 fc_port_t *fcport; 571 572 list_for_each_entry(fcport, &vha->vp_fcports, list) 573 if (fcport->loop_id == loop_id) 574 return fcport; 575 return NULL; 576 } 577 578 /** 579 * qla2x00_async_event() - Process aynchronous events. 580 * @ha: SCSI driver HA context 581 * @mb: Mailbox registers (0 - 3) 582 */ 583 void 584 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) 585 { 586 uint16_t handle_cnt; 587 uint16_t cnt, mbx; 588 uint32_t handles[5]; 589 struct qla_hw_data *ha = vha->hw; 590 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 591 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; 592 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; 593 uint32_t rscn_entry, host_pid; 594 unsigned long flags; 595 fc_port_t *fcport = NULL; 596 597 /* Setup to process RIO completion. */ 598 handle_cnt = 0; 599 if (IS_CNA_CAPABLE(ha)) 600 goto skip_rio; 601 switch (mb[0]) { 602 case MBA_SCSI_COMPLETION: 603 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 604 handle_cnt = 1; 605 break; 606 case MBA_CMPLT_1_16BIT: 607 handles[0] = mb[1]; 608 handle_cnt = 1; 609 mb[0] = MBA_SCSI_COMPLETION; 610 break; 611 case MBA_CMPLT_2_16BIT: 612 handles[0] = mb[1]; 613 handles[1] = mb[2]; 614 handle_cnt = 2; 615 mb[0] = MBA_SCSI_COMPLETION; 616 break; 617 case MBA_CMPLT_3_16BIT: 618 handles[0] = mb[1]; 619 handles[1] = mb[2]; 620 handles[2] = mb[3]; 621 handle_cnt = 3; 622 mb[0] = MBA_SCSI_COMPLETION; 623 break; 624 case MBA_CMPLT_4_16BIT: 625 handles[0] = mb[1]; 626 handles[1] = mb[2]; 627 handles[2] = mb[3]; 628 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 629 handle_cnt = 4; 630 mb[0] = MBA_SCSI_COMPLETION; 631 break; 632 case MBA_CMPLT_5_16BIT: 633 handles[0] = mb[1]; 634 handles[1] = mb[2]; 635 handles[2] = mb[3]; 636 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 637 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 638 handle_cnt = 5; 639 mb[0] = MBA_SCSI_COMPLETION; 640 break; 641 case MBA_CMPLT_2_32BIT: 642 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 643 handles[1] = le32_to_cpu( 644 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 645 RD_MAILBOX_REG(ha, reg, 6)); 646 handle_cnt = 2; 647 mb[0] = MBA_SCSI_COMPLETION; 648 break; 649 default: 650 break; 651 } 652 skip_rio: 653 switch (mb[0]) { 654 case MBA_SCSI_COMPLETION: /* Fast Post */ 655 if (!vha->flags.online) 656 break; 657 658 for (cnt = 0; cnt < handle_cnt; cnt++) 659 qla2x00_process_completed_request(vha, rsp->req, 660 handles[cnt]); 661 break; 662 663 case MBA_RESET: /* Reset */ 664 ql_dbg(ql_dbg_async, vha, 0x5002, 665 "Asynchronous RESET.\n"); 666 667 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 668 break; 669 670 case MBA_SYSTEM_ERR: /* System Error */ 671 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ? 672 RD_REG_WORD(®24->mailbox7) : 0; 673 ql_log(ql_log_warn, vha, 0x5003, 674 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh " 675 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); 676 677 ha->isp_ops->fw_dump(vha, 1); 678 679 if (IS_FWI2_CAPABLE(ha)) { 680 if (mb[1] == 0 && mb[2] == 0) { 681 ql_log(ql_log_fatal, vha, 0x5004, 682 "Unrecoverable Hardware Error: adapter " 683 "marked OFFLINE!\n"); 684 vha->flags.online = 0; 685 vha->device_flags |= DFLG_DEV_FAILED; 686 } else { 687 /* Check to see if MPI timeout occurred */ 688 if ((mbx & MBX_3) && (ha->port_no == 0)) 689 set_bit(MPI_RESET_NEEDED, 690 &vha->dpc_flags); 691 692 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 693 } 694 } else if (mb[1] == 0) { 695 ql_log(ql_log_fatal, vha, 0x5005, 696 "Unrecoverable Hardware Error: adapter marked " 697 "OFFLINE!\n"); 698 vha->flags.online = 0; 699 vha->device_flags |= DFLG_DEV_FAILED; 700 } else 701 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 702 break; 703 704 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 705 ql_log(ql_log_warn, vha, 0x5006, 706 "ISP Request Transfer Error (%x).\n", mb[1]); 707 708 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 709 break; 710 711 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 712 ql_log(ql_log_warn, vha, 0x5007, 713 "ISP Response Transfer Error (%x).\n", mb[1]); 714 715 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 716 break; 717 718 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 719 ql_dbg(ql_dbg_async, vha, 0x5008, 720 "Asynchronous WAKEUP_THRES (%x).\n", mb[1]); 721 break; 722 723 case MBA_LOOP_INIT_ERR: 724 ql_log(ql_log_warn, vha, 0x5090, 725 "LOOP INIT ERROR (%x).\n", mb[1]); 726 ha->isp_ops->fw_dump(vha, 1); 727 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 728 break; 729 730 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 731 ql_dbg(ql_dbg_async, vha, 0x5009, 732 "LIP occurred (%x).\n", mb[1]); 733 734 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 735 atomic_set(&vha->loop_state, LOOP_DOWN); 736 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 737 qla2x00_mark_all_devices_lost(vha, 1); 738 } 739 740 if (vha->vp_idx) { 741 atomic_set(&vha->vp_state, VP_FAILED); 742 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 743 } 744 745 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 746 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 747 748 vha->flags.management_server_logged_in = 0; 749 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 750 break; 751 752 case MBA_LOOP_UP: /* Loop Up Event */ 753 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 754 ha->link_data_rate = PORT_SPEED_1GB; 755 else 756 ha->link_data_rate = mb[1]; 757 758 ql_log(ql_log_info, vha, 0x500a, 759 "LOOP UP detected (%s Gbps).\n", 760 qla2x00_get_link_speed_str(ha, ha->link_data_rate)); 761 762 vha->flags.management_server_logged_in = 0; 763 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 764 break; 765 766 case MBA_LOOP_DOWN: /* Loop Down Event */ 767 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha)) 768 ? RD_REG_WORD(®24->mailbox4) : 0; 769 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4]) 770 : mbx; 771 ql_log(ql_log_info, vha, 0x500b, 772 "LOOP DOWN detected (%x %x %x %x).\n", 773 mb[1], mb[2], mb[3], mbx); 774 775 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 776 atomic_set(&vha->loop_state, LOOP_DOWN); 777 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 778 /* 779 * In case of loop down, restore WWPN from 780 * NVRAM in case of FA-WWPN capable ISP 781 * Restore for Physical Port only 782 */ 783 if (!vha->vp_idx) { 784 if (ha->flags.fawwpn_enabled) { 785 void *wwpn = ha->init_cb->port_name; 786 memcpy(vha->port_name, wwpn, WWN_SIZE); 787 fc_host_port_name(vha->host) = 788 wwn_to_u64(vha->port_name); 789 ql_dbg(ql_dbg_init + ql_dbg_verbose, 790 vha, 0x0144, "LOOP DOWN detected," 791 "restore WWPN %016llx\n", 792 wwn_to_u64(vha->port_name)); 793 } 794 795 clear_bit(VP_CONFIG_OK, &vha->vp_flags); 796 } 797 798 vha->device_flags |= DFLG_NO_CABLE; 799 qla2x00_mark_all_devices_lost(vha, 1); 800 } 801 802 if (vha->vp_idx) { 803 atomic_set(&vha->vp_state, VP_FAILED); 804 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 805 } 806 807 vha->flags.management_server_logged_in = 0; 808 ha->link_data_rate = PORT_SPEED_UNKNOWN; 809 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 810 break; 811 812 case MBA_LIP_RESET: /* LIP reset occurred */ 813 ql_dbg(ql_dbg_async, vha, 0x500c, 814 "LIP reset occurred (%x).\n", mb[1]); 815 816 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 817 atomic_set(&vha->loop_state, LOOP_DOWN); 818 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 819 qla2x00_mark_all_devices_lost(vha, 1); 820 } 821 822 if (vha->vp_idx) { 823 atomic_set(&vha->vp_state, VP_FAILED); 824 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 825 } 826 827 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 828 829 ha->operating_mode = LOOP; 830 vha->flags.management_server_logged_in = 0; 831 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 832 break; 833 834 /* case MBA_DCBX_COMPLETE: */ 835 case MBA_POINT_TO_POINT: /* Point-to-Point */ 836 if (IS_QLA2100(ha)) 837 break; 838 839 if (IS_CNA_CAPABLE(ha)) { 840 ql_dbg(ql_dbg_async, vha, 0x500d, 841 "DCBX Completed -- %04x %04x %04x.\n", 842 mb[1], mb[2], mb[3]); 843 if (ha->notify_dcbx_comp && !vha->vp_idx) 844 complete(&ha->dcbx_comp); 845 846 } else 847 ql_dbg(ql_dbg_async, vha, 0x500e, 848 "Asynchronous P2P MODE received.\n"); 849 850 /* 851 * Until there's a transition from loop down to loop up, treat 852 * this as loop down only. 853 */ 854 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 855 atomic_set(&vha->loop_state, LOOP_DOWN); 856 if (!atomic_read(&vha->loop_down_timer)) 857 atomic_set(&vha->loop_down_timer, 858 LOOP_DOWN_TIME); 859 qla2x00_mark_all_devices_lost(vha, 1); 860 } 861 862 if (vha->vp_idx) { 863 atomic_set(&vha->vp_state, VP_FAILED); 864 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 865 } 866 867 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 868 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 869 870 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 871 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 872 873 ha->flags.gpsc_supported = 1; 874 vha->flags.management_server_logged_in = 0; 875 break; 876 877 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 878 if (IS_QLA2100(ha)) 879 break; 880 881 ql_dbg(ql_dbg_async, vha, 0x500f, 882 "Configuration change detected: value=%x.\n", mb[1]); 883 884 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 885 atomic_set(&vha->loop_state, LOOP_DOWN); 886 if (!atomic_read(&vha->loop_down_timer)) 887 atomic_set(&vha->loop_down_timer, 888 LOOP_DOWN_TIME); 889 qla2x00_mark_all_devices_lost(vha, 1); 890 } 891 892 if (vha->vp_idx) { 893 atomic_set(&vha->vp_state, VP_FAILED); 894 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 895 } 896 897 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 898 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 899 break; 900 901 case MBA_PORT_UPDATE: /* Port database update */ 902 /* 903 * Handle only global and vn-port update events 904 * 905 * Relevant inputs: 906 * mb[1] = N_Port handle of changed port 907 * OR 0xffff for global event 908 * mb[2] = New login state 909 * 7 = Port logged out 910 * mb[3] = LSB is vp_idx, 0xff = all vps 911 * 912 * Skip processing if: 913 * Event is global, vp_idx is NOT all vps, 914 * vp_idx does not match 915 * Event is not global, vp_idx does not match 916 */ 917 if (IS_QLA2XXX_MIDTYPE(ha) && 918 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 919 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 920 break; 921 922 if (mb[2] == 0x7) { 923 ql_dbg(ql_dbg_async, vha, 0x5010, 924 "Port %s %04x %04x %04x.\n", 925 mb[1] == 0xffff ? "unavailable" : "logout", 926 mb[1], mb[2], mb[3]); 927 928 if (mb[1] == 0xffff) 929 goto global_port_update; 930 931 /* Port logout */ 932 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]); 933 if (!fcport) 934 break; 935 if (atomic_read(&fcport->state) != FCS_ONLINE) 936 break; 937 ql_dbg(ql_dbg_async, vha, 0x508a, 938 "Marking port lost loopid=%04x portid=%06x.\n", 939 fcport->loop_id, fcport->d_id.b24); 940 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 941 break; 942 943 global_port_update: 944 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 945 atomic_set(&vha->loop_state, LOOP_DOWN); 946 atomic_set(&vha->loop_down_timer, 947 LOOP_DOWN_TIME); 948 vha->device_flags |= DFLG_NO_CABLE; 949 qla2x00_mark_all_devices_lost(vha, 1); 950 } 951 952 if (vha->vp_idx) { 953 atomic_set(&vha->vp_state, VP_FAILED); 954 fc_vport_set_state(vha->fc_vport, 955 FC_VPORT_FAILED); 956 qla2x00_mark_all_devices_lost(vha, 1); 957 } 958 959 vha->flags.management_server_logged_in = 0; 960 ha->link_data_rate = PORT_SPEED_UNKNOWN; 961 break; 962 } 963 964 /* 965 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 966 * event etc. earlier indicating loop is down) then process 967 * it. Otherwise ignore it and Wait for RSCN to come in. 968 */ 969 atomic_set(&vha->loop_down_timer, 0); 970 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 971 atomic_read(&vha->loop_state) != LOOP_DEAD) { 972 ql_dbg(ql_dbg_async, vha, 0x5011, 973 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n", 974 mb[1], mb[2], mb[3]); 975 976 qlt_async_event(mb[0], vha, mb); 977 break; 978 } 979 980 ql_dbg(ql_dbg_async, vha, 0x5012, 981 "Port database changed %04x %04x %04x.\n", 982 mb[1], mb[2], mb[3]); 983 984 /* 985 * Mark all devices as missing so we will login again. 986 */ 987 atomic_set(&vha->loop_state, LOOP_UP); 988 989 qla2x00_mark_all_devices_lost(vha, 1); 990 991 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha)) 992 set_bit(SCR_PENDING, &vha->dpc_flags); 993 994 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 995 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 996 set_bit(VP_CONFIG_OK, &vha->vp_flags); 997 998 qlt_async_event(mb[0], vha, mb); 999 break; 1000 1001 case MBA_RSCN_UPDATE: /* State Change Registration */ 1002 /* Check if the Vport has issued a SCR */ 1003 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 1004 break; 1005 /* Only handle SCNs for our Vport index. */ 1006 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 1007 break; 1008 1009 ql_dbg(ql_dbg_async, vha, 0x5013, 1010 "RSCN database changed -- %04x %04x %04x.\n", 1011 mb[1], mb[2], mb[3]); 1012 1013 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 1014 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 1015 | vha->d_id.b.al_pa; 1016 if (rscn_entry == host_pid) { 1017 ql_dbg(ql_dbg_async, vha, 0x5014, 1018 "Ignoring RSCN update to local host " 1019 "port ID (%06x).\n", host_pid); 1020 break; 1021 } 1022 1023 /* Ignore reserved bits from RSCN-payload. */ 1024 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 1025 1026 /* Skip RSCNs for virtual ports on the same physical port */ 1027 if (qla2x00_is_a_vp_did(vha, rscn_entry)) 1028 break; 1029 1030 /* 1031 * Search for the rport related to this RSCN entry and mark it 1032 * as lost. 1033 */ 1034 list_for_each_entry(fcport, &vha->vp_fcports, list) { 1035 if (atomic_read(&fcport->state) != FCS_ONLINE) 1036 continue; 1037 if (fcport->d_id.b24 == rscn_entry) { 1038 qla2x00_mark_device_lost(vha, fcport, 0, 0); 1039 break; 1040 } 1041 } 1042 1043 atomic_set(&vha->loop_down_timer, 0); 1044 vha->flags.management_server_logged_in = 0; 1045 1046 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 1047 set_bit(RSCN_UPDATE, &vha->dpc_flags); 1048 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 1049 break; 1050 1051 /* case MBA_RIO_RESPONSE: */ 1052 case MBA_ZIO_RESPONSE: 1053 ql_dbg(ql_dbg_async, vha, 0x5015, 1054 "[R|Z]IO update completion.\n"); 1055 1056 if (IS_FWI2_CAPABLE(ha)) 1057 qla24xx_process_response_queue(vha, rsp); 1058 else 1059 qla2x00_process_response_queue(rsp); 1060 break; 1061 1062 case MBA_DISCARD_RND_FRAME: 1063 ql_dbg(ql_dbg_async, vha, 0x5016, 1064 "Discard RND Frame -- %04x %04x %04x.\n", 1065 mb[1], mb[2], mb[3]); 1066 break; 1067 1068 case MBA_TRACE_NOTIFICATION: 1069 ql_dbg(ql_dbg_async, vha, 0x5017, 1070 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]); 1071 break; 1072 1073 case MBA_ISP84XX_ALERT: 1074 ql_dbg(ql_dbg_async, vha, 0x5018, 1075 "ISP84XX Alert Notification -- %04x %04x %04x.\n", 1076 mb[1], mb[2], mb[3]); 1077 1078 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 1079 switch (mb[1]) { 1080 case A84_PANIC_RECOVERY: 1081 ql_log(ql_log_info, vha, 0x5019, 1082 "Alert 84XX: panic recovery %04x %04x.\n", 1083 mb[2], mb[3]); 1084 break; 1085 case A84_OP_LOGIN_COMPLETE: 1086 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 1087 ql_log(ql_log_info, vha, 0x501a, 1088 "Alert 84XX: firmware version %x.\n", 1089 ha->cs84xx->op_fw_version); 1090 break; 1091 case A84_DIAG_LOGIN_COMPLETE: 1092 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1093 ql_log(ql_log_info, vha, 0x501b, 1094 "Alert 84XX: diagnostic firmware version %x.\n", 1095 ha->cs84xx->diag_fw_version); 1096 break; 1097 case A84_GOLD_LOGIN_COMPLETE: 1098 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1099 ha->cs84xx->fw_update = 1; 1100 ql_log(ql_log_info, vha, 0x501c, 1101 "Alert 84XX: gold firmware version %x.\n", 1102 ha->cs84xx->gold_fw_version); 1103 break; 1104 default: 1105 ql_log(ql_log_warn, vha, 0x501d, 1106 "Alert 84xx: Invalid Alert %04x %04x %04x.\n", 1107 mb[1], mb[2], mb[3]); 1108 } 1109 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 1110 break; 1111 case MBA_DCBX_START: 1112 ql_dbg(ql_dbg_async, vha, 0x501e, 1113 "DCBX Started -- %04x %04x %04x.\n", 1114 mb[1], mb[2], mb[3]); 1115 break; 1116 case MBA_DCBX_PARAM_UPDATE: 1117 ql_dbg(ql_dbg_async, vha, 0x501f, 1118 "DCBX Parameters Updated -- %04x %04x %04x.\n", 1119 mb[1], mb[2], mb[3]); 1120 break; 1121 case MBA_FCF_CONF_ERR: 1122 ql_dbg(ql_dbg_async, vha, 0x5020, 1123 "FCF Configuration Error -- %04x %04x %04x.\n", 1124 mb[1], mb[2], mb[3]); 1125 break; 1126 case MBA_IDC_NOTIFY: 1127 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) { 1128 mb[4] = RD_REG_WORD(®24->mailbox4); 1129 if (((mb[2] & 0x7fff) == MBC_PORT_RESET || 1130 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) && 1131 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) { 1132 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 1133 /* 1134 * Extend loop down timer since port is active. 1135 */ 1136 if (atomic_read(&vha->loop_state) == LOOP_DOWN) 1137 atomic_set(&vha->loop_down_timer, 1138 LOOP_DOWN_TIME); 1139 qla2xxx_wake_dpc(vha); 1140 } 1141 } 1142 case MBA_IDC_COMPLETE: 1143 if (ha->notify_lb_portup_comp && !vha->vp_idx) 1144 complete(&ha->lb_portup_comp); 1145 /* Fallthru */ 1146 case MBA_IDC_TIME_EXT: 1147 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || 1148 IS_QLA8044(ha)) 1149 qla81xx_idc_event(vha, mb[0], mb[1]); 1150 break; 1151 1152 case MBA_IDC_AEN: 1153 mb[4] = RD_REG_WORD(®24->mailbox4); 1154 mb[5] = RD_REG_WORD(®24->mailbox5); 1155 mb[6] = RD_REG_WORD(®24->mailbox6); 1156 mb[7] = RD_REG_WORD(®24->mailbox7); 1157 qla83xx_handle_8200_aen(vha, mb); 1158 break; 1159 1160 case MBA_DPORT_DIAGNOSTICS: 1161 ql_dbg(ql_dbg_async, vha, 0x5052, 1162 "D-Port Diagnostics: %04x result=%s\n", 1163 mb[0], 1164 mb[1] == 0 ? "start" : 1165 mb[1] == 1 ? "done (pass)" : 1166 mb[1] == 2 ? "done (error)" : "other"); 1167 break; 1168 1169 case MBA_TEMPERATURE_ALERT: 1170 ql_dbg(ql_dbg_async, vha, 0x505e, 1171 "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]); 1172 if (mb[1] == 0x12) 1173 schedule_work(&ha->board_disable); 1174 break; 1175 1176 default: 1177 ql_dbg(ql_dbg_async, vha, 0x5057, 1178 "Unknown AEN:%04x %04x %04x %04x\n", 1179 mb[0], mb[1], mb[2], mb[3]); 1180 } 1181 1182 qlt_async_event(mb[0], vha, mb); 1183 1184 if (!vha->vp_idx && ha->num_vhosts) 1185 qla2x00_alert_all_vps(rsp, mb); 1186 } 1187 1188 /** 1189 * qla2x00_process_completed_request() - Process a Fast Post response. 1190 * @ha: SCSI driver HA context 1191 * @index: SRB index 1192 */ 1193 void 1194 qla2x00_process_completed_request(struct scsi_qla_host *vha, 1195 struct req_que *req, uint32_t index) 1196 { 1197 srb_t *sp; 1198 struct qla_hw_data *ha = vha->hw; 1199 1200 /* Validate handle. */ 1201 if (index >= req->num_outstanding_cmds) { 1202 ql_log(ql_log_warn, vha, 0x3014, 1203 "Invalid SCSI command index (%x).\n", index); 1204 1205 if (IS_P3P_TYPE(ha)) 1206 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1207 else 1208 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1209 return; 1210 } 1211 1212 sp = req->outstanding_cmds[index]; 1213 if (sp) { 1214 /* Free outstanding command slot. */ 1215 req->outstanding_cmds[index] = NULL; 1216 1217 /* Save ISP completion status */ 1218 sp->done(ha, sp, DID_OK << 16); 1219 } else { 1220 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n"); 1221 1222 if (IS_P3P_TYPE(ha)) 1223 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1224 else 1225 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1226 } 1227 } 1228 1229 srb_t * 1230 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 1231 struct req_que *req, void *iocb) 1232 { 1233 struct qla_hw_data *ha = vha->hw; 1234 sts_entry_t *pkt = iocb; 1235 srb_t *sp = NULL; 1236 uint16_t index; 1237 1238 index = LSW(pkt->handle); 1239 if (index >= req->num_outstanding_cmds) { 1240 ql_log(ql_log_warn, vha, 0x5031, 1241 "Invalid command index (%x).\n", index); 1242 if (IS_P3P_TYPE(ha)) 1243 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1244 else 1245 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1246 goto done; 1247 } 1248 sp = req->outstanding_cmds[index]; 1249 if (!sp) { 1250 ql_log(ql_log_warn, vha, 0x5032, 1251 "Invalid completion handle (%x) -- timed-out.\n", index); 1252 return sp; 1253 } 1254 if (sp->handle != index) { 1255 ql_log(ql_log_warn, vha, 0x5033, 1256 "SRB handle (%x) mismatch %x.\n", sp->handle, index); 1257 return NULL; 1258 } 1259 1260 req->outstanding_cmds[index] = NULL; 1261 1262 done: 1263 return sp; 1264 } 1265 1266 static void 1267 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 1268 struct mbx_entry *mbx) 1269 { 1270 const char func[] = "MBX-IOCB"; 1271 const char *type; 1272 fc_port_t *fcport; 1273 srb_t *sp; 1274 struct srb_iocb *lio; 1275 uint16_t *data; 1276 uint16_t status; 1277 1278 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 1279 if (!sp) 1280 return; 1281 1282 lio = &sp->u.iocb_cmd; 1283 type = sp->name; 1284 fcport = sp->fcport; 1285 data = lio->u.logio.data; 1286 1287 data[0] = MBS_COMMAND_ERROR; 1288 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1289 QLA_LOGIO_LOGIN_RETRIED : 0; 1290 if (mbx->entry_status) { 1291 ql_dbg(ql_dbg_async, vha, 0x5043, 1292 "Async-%s error entry - hdl=%x portid=%02x%02x%02x " 1293 "entry-status=%x status=%x state-flag=%x " 1294 "status-flags=%x.\n", type, sp->handle, 1295 fcport->d_id.b.domain, fcport->d_id.b.area, 1296 fcport->d_id.b.al_pa, mbx->entry_status, 1297 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 1298 le16_to_cpu(mbx->status_flags)); 1299 1300 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029, 1301 (uint8_t *)mbx, sizeof(*mbx)); 1302 1303 goto logio_done; 1304 } 1305 1306 status = le16_to_cpu(mbx->status); 1307 if (status == 0x30 && sp->type == SRB_LOGIN_CMD && 1308 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 1309 status = 0; 1310 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 1311 ql_dbg(ql_dbg_async, vha, 0x5045, 1312 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n", 1313 type, sp->handle, fcport->d_id.b.domain, 1314 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1315 le16_to_cpu(mbx->mb1)); 1316 1317 data[0] = MBS_COMMAND_COMPLETE; 1318 if (sp->type == SRB_LOGIN_CMD) { 1319 fcport->port_type = FCT_TARGET; 1320 if (le16_to_cpu(mbx->mb1) & BIT_0) 1321 fcport->port_type = FCT_INITIATOR; 1322 else if (le16_to_cpu(mbx->mb1) & BIT_1) 1323 fcport->flags |= FCF_FCP2_DEVICE; 1324 } 1325 goto logio_done; 1326 } 1327 1328 data[0] = le16_to_cpu(mbx->mb0); 1329 switch (data[0]) { 1330 case MBS_PORT_ID_USED: 1331 data[1] = le16_to_cpu(mbx->mb1); 1332 break; 1333 case MBS_LOOP_ID_USED: 1334 break; 1335 default: 1336 data[0] = MBS_COMMAND_ERROR; 1337 break; 1338 } 1339 1340 ql_log(ql_log_warn, vha, 0x5046, 1341 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x " 1342 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle, 1343 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, 1344 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 1345 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 1346 le16_to_cpu(mbx->mb7)); 1347 1348 logio_done: 1349 sp->done(vha, sp, 0); 1350 } 1351 1352 static void 1353 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1354 sts_entry_t *pkt, int iocb_type) 1355 { 1356 const char func[] = "CT_IOCB"; 1357 const char *type; 1358 srb_t *sp; 1359 struct bsg_job *bsg_job; 1360 struct fc_bsg_reply *bsg_reply; 1361 uint16_t comp_status; 1362 int res; 1363 1364 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1365 if (!sp) 1366 return; 1367 1368 bsg_job = sp->u.bsg_job; 1369 bsg_reply = bsg_job->reply; 1370 1371 type = "ct pass-through"; 1372 1373 comp_status = le16_to_cpu(pkt->comp_status); 1374 1375 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1376 * fc payload to the caller 1377 */ 1378 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1379 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1380 1381 if (comp_status != CS_COMPLETE) { 1382 if (comp_status == CS_DATA_UNDERRUN) { 1383 res = DID_OK << 16; 1384 bsg_reply->reply_payload_rcv_len = 1385 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1386 1387 ql_log(ql_log_warn, vha, 0x5048, 1388 "CT pass-through-%s error " 1389 "comp_status-status=0x%x total_byte = 0x%x.\n", 1390 type, comp_status, 1391 bsg_reply->reply_payload_rcv_len); 1392 } else { 1393 ql_log(ql_log_warn, vha, 0x5049, 1394 "CT pass-through-%s error " 1395 "comp_status-status=0x%x.\n", type, comp_status); 1396 res = DID_ERROR << 16; 1397 bsg_reply->reply_payload_rcv_len = 0; 1398 } 1399 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035, 1400 (uint8_t *)pkt, sizeof(*pkt)); 1401 } else { 1402 res = DID_OK << 16; 1403 bsg_reply->reply_payload_rcv_len = 1404 bsg_job->reply_payload.payload_len; 1405 bsg_job->reply_len = 0; 1406 } 1407 1408 sp->done(vha, sp, res); 1409 } 1410 1411 static void 1412 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1413 struct sts_entry_24xx *pkt, int iocb_type) 1414 { 1415 const char func[] = "ELS_CT_IOCB"; 1416 const char *type; 1417 srb_t *sp; 1418 struct bsg_job *bsg_job; 1419 struct fc_bsg_reply *bsg_reply; 1420 uint16_t comp_status; 1421 uint32_t fw_status[3]; 1422 uint8_t* fw_sts_ptr; 1423 int res; 1424 1425 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1426 if (!sp) 1427 return; 1428 bsg_job = sp->u.bsg_job; 1429 bsg_reply = bsg_job->reply; 1430 1431 type = NULL; 1432 switch (sp->type) { 1433 case SRB_ELS_CMD_RPT: 1434 case SRB_ELS_CMD_HST: 1435 type = "els"; 1436 break; 1437 case SRB_CT_CMD: 1438 type = "ct pass-through"; 1439 break; 1440 case SRB_ELS_DCMD: 1441 type = "Driver ELS logo"; 1442 ql_dbg(ql_dbg_user, vha, 0x5047, 1443 "Completing %s: (%p) type=%d.\n", type, sp, sp->type); 1444 sp->done(vha, sp, 0); 1445 return; 1446 default: 1447 ql_dbg(ql_dbg_user, vha, 0x503e, 1448 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type); 1449 return; 1450 } 1451 1452 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1453 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1454 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1455 1456 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1457 * fc payload to the caller 1458 */ 1459 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1460 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1461 1462 if (comp_status != CS_COMPLETE) { 1463 if (comp_status == CS_DATA_UNDERRUN) { 1464 res = DID_OK << 16; 1465 bsg_reply->reply_payload_rcv_len = 1466 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count); 1467 1468 ql_dbg(ql_dbg_user, vha, 0x503f, 1469 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1470 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1471 type, sp->handle, comp_status, fw_status[1], fw_status[2], 1472 le16_to_cpu(((struct els_sts_entry_24xx *) 1473 pkt)->total_byte_count)); 1474 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1475 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1476 } 1477 else { 1478 ql_dbg(ql_dbg_user, vha, 0x5040, 1479 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1480 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1481 type, sp->handle, comp_status, 1482 le16_to_cpu(((struct els_sts_entry_24xx *) 1483 pkt)->error_subcode_1), 1484 le16_to_cpu(((struct els_sts_entry_24xx *) 1485 pkt)->error_subcode_2)); 1486 res = DID_ERROR << 16; 1487 bsg_reply->reply_payload_rcv_len = 0; 1488 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1489 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1490 } 1491 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056, 1492 (uint8_t *)pkt, sizeof(*pkt)); 1493 } 1494 else { 1495 res = DID_OK << 16; 1496 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1497 bsg_job->reply_len = 0; 1498 } 1499 1500 sp->done(vha, sp, res); 1501 } 1502 1503 static void 1504 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1505 struct logio_entry_24xx *logio) 1506 { 1507 const char func[] = "LOGIO-IOCB"; 1508 const char *type; 1509 fc_port_t *fcport; 1510 srb_t *sp; 1511 struct srb_iocb *lio; 1512 uint16_t *data; 1513 uint32_t iop[2]; 1514 1515 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1516 if (!sp) 1517 return; 1518 1519 lio = &sp->u.iocb_cmd; 1520 type = sp->name; 1521 fcport = sp->fcport; 1522 data = lio->u.logio.data; 1523 1524 data[0] = MBS_COMMAND_ERROR; 1525 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1526 QLA_LOGIO_LOGIN_RETRIED : 0; 1527 if (logio->entry_status) { 1528 ql_log(ql_log_warn, fcport->vha, 0x5034, 1529 "Async-%s error entry - hdl=%x" 1530 "portid=%02x%02x%02x entry-status=%x.\n", 1531 type, sp->handle, fcport->d_id.b.domain, 1532 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1533 logio->entry_status); 1534 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d, 1535 (uint8_t *)logio, sizeof(*logio)); 1536 1537 goto logio_done; 1538 } 1539 1540 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1541 ql_dbg(ql_dbg_async, fcport->vha, 0x5036, 1542 "Async-%s complete - hdl=%x portid=%02x%02x%02x " 1543 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1544 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1545 le32_to_cpu(logio->io_parameter[0])); 1546 1547 data[0] = MBS_COMMAND_COMPLETE; 1548 if (sp->type != SRB_LOGIN_CMD) 1549 goto logio_done; 1550 1551 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1552 if (iop[0] & BIT_4) { 1553 fcport->port_type = FCT_TARGET; 1554 if (iop[0] & BIT_8) 1555 fcport->flags |= FCF_FCP2_DEVICE; 1556 } else if (iop[0] & BIT_5) 1557 fcport->port_type = FCT_INITIATOR; 1558 1559 if (iop[0] & BIT_7) 1560 fcport->flags |= FCF_CONF_COMP_SUPPORTED; 1561 1562 if (logio->io_parameter[7] || logio->io_parameter[8]) 1563 fcport->supported_classes |= FC_COS_CLASS2; 1564 if (logio->io_parameter[9] || logio->io_parameter[10]) 1565 fcport->supported_classes |= FC_COS_CLASS3; 1566 1567 goto logio_done; 1568 } 1569 1570 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1571 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1572 switch (iop[0]) { 1573 case LSC_SCODE_PORTID_USED: 1574 data[0] = MBS_PORT_ID_USED; 1575 data[1] = LSW(iop[1]); 1576 break; 1577 case LSC_SCODE_NPORT_USED: 1578 data[0] = MBS_LOOP_ID_USED; 1579 break; 1580 default: 1581 data[0] = MBS_COMMAND_ERROR; 1582 break; 1583 } 1584 1585 ql_dbg(ql_dbg_async, fcport->vha, 0x5037, 1586 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x " 1587 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1588 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1589 le16_to_cpu(logio->comp_status), 1590 le32_to_cpu(logio->io_parameter[0]), 1591 le32_to_cpu(logio->io_parameter[1])); 1592 1593 logio_done: 1594 sp->done(vha, sp, 0); 1595 } 1596 1597 static void 1598 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk) 1599 { 1600 const char func[] = "TMF-IOCB"; 1601 const char *type; 1602 fc_port_t *fcport; 1603 srb_t *sp; 1604 struct srb_iocb *iocb; 1605 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; 1606 1607 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); 1608 if (!sp) 1609 return; 1610 1611 iocb = &sp->u.iocb_cmd; 1612 type = sp->name; 1613 fcport = sp->fcport; 1614 iocb->u.tmf.data = QLA_SUCCESS; 1615 1616 if (sts->entry_status) { 1617 ql_log(ql_log_warn, fcport->vha, 0x5038, 1618 "Async-%s error - hdl=%x entry-status(%x).\n", 1619 type, sp->handle, sts->entry_status); 1620 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1621 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) { 1622 ql_log(ql_log_warn, fcport->vha, 0x5039, 1623 "Async-%s error - hdl=%x completion status(%x).\n", 1624 type, sp->handle, sts->comp_status); 1625 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1626 } else if ((le16_to_cpu(sts->scsi_status) & 1627 SS_RESPONSE_INFO_LEN_VALID)) { 1628 if (le32_to_cpu(sts->rsp_data_len) < 4) { 1629 ql_log(ql_log_warn, fcport->vha, 0x503b, 1630 "Async-%s error - hdl=%x not enough response(%d).\n", 1631 type, sp->handle, sts->rsp_data_len); 1632 } else if (sts->data[3]) { 1633 ql_log(ql_log_warn, fcport->vha, 0x503c, 1634 "Async-%s error - hdl=%x response(%x).\n", 1635 type, sp->handle, sts->data[3]); 1636 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1637 } 1638 } 1639 1640 if (iocb->u.tmf.data != QLA_SUCCESS) 1641 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055, 1642 (uint8_t *)sts, sizeof(*sts)); 1643 1644 sp->done(vha, sp, 0); 1645 } 1646 1647 /** 1648 * qla2x00_process_response_queue() - Process response queue entries. 1649 * @ha: SCSI driver HA context 1650 */ 1651 void 1652 qla2x00_process_response_queue(struct rsp_que *rsp) 1653 { 1654 struct scsi_qla_host *vha; 1655 struct qla_hw_data *ha = rsp->hw; 1656 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1657 sts_entry_t *pkt; 1658 uint16_t handle_cnt; 1659 uint16_t cnt; 1660 1661 vha = pci_get_drvdata(ha->pdev); 1662 1663 if (!vha->flags.online) 1664 return; 1665 1666 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1667 pkt = (sts_entry_t *)rsp->ring_ptr; 1668 1669 rsp->ring_index++; 1670 if (rsp->ring_index == rsp->length) { 1671 rsp->ring_index = 0; 1672 rsp->ring_ptr = rsp->ring; 1673 } else { 1674 rsp->ring_ptr++; 1675 } 1676 1677 if (pkt->entry_status != 0) { 1678 qla2x00_error_entry(vha, rsp, pkt); 1679 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1680 wmb(); 1681 continue; 1682 } 1683 1684 switch (pkt->entry_type) { 1685 case STATUS_TYPE: 1686 qla2x00_status_entry(vha, rsp, pkt); 1687 break; 1688 case STATUS_TYPE_21: 1689 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 1690 for (cnt = 0; cnt < handle_cnt; cnt++) { 1691 qla2x00_process_completed_request(vha, rsp->req, 1692 ((sts21_entry_t *)pkt)->handle[cnt]); 1693 } 1694 break; 1695 case STATUS_TYPE_22: 1696 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 1697 for (cnt = 0; cnt < handle_cnt; cnt++) { 1698 qla2x00_process_completed_request(vha, rsp->req, 1699 ((sts22_entry_t *)pkt)->handle[cnt]); 1700 } 1701 break; 1702 case STATUS_CONT_TYPE: 1703 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1704 break; 1705 case MBX_IOCB_TYPE: 1706 qla2x00_mbx_iocb_entry(vha, rsp->req, 1707 (struct mbx_entry *)pkt); 1708 break; 1709 case CT_IOCB_TYPE: 1710 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 1711 break; 1712 default: 1713 /* Type Not Supported. */ 1714 ql_log(ql_log_warn, vha, 0x504a, 1715 "Received unknown response pkt type %x " 1716 "entry status=%x.\n", 1717 pkt->entry_type, pkt->entry_status); 1718 break; 1719 } 1720 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1721 wmb(); 1722 } 1723 1724 /* Adjust ring index */ 1725 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); 1726 } 1727 1728 static inline void 1729 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len, 1730 uint32_t sense_len, struct rsp_que *rsp, int res) 1731 { 1732 struct scsi_qla_host *vha = sp->fcport->vha; 1733 struct scsi_cmnd *cp = GET_CMD_SP(sp); 1734 uint32_t track_sense_len; 1735 1736 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 1737 sense_len = SCSI_SENSE_BUFFERSIZE; 1738 1739 SET_CMD_SENSE_LEN(sp, sense_len); 1740 SET_CMD_SENSE_PTR(sp, cp->sense_buffer); 1741 track_sense_len = sense_len; 1742 1743 if (sense_len > par_sense_len) 1744 sense_len = par_sense_len; 1745 1746 memcpy(cp->sense_buffer, sense_data, sense_len); 1747 1748 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len); 1749 track_sense_len -= sense_len; 1750 SET_CMD_SENSE_LEN(sp, track_sense_len); 1751 1752 if (track_sense_len != 0) { 1753 rsp->status_srb = sp; 1754 cp->result = res; 1755 } 1756 1757 if (sense_len) { 1758 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c, 1759 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n", 1760 sp->fcport->vha->host_no, cp->device->id, cp->device->lun, 1761 cp); 1762 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b, 1763 cp->sense_buffer, sense_len); 1764 } 1765 } 1766 1767 struct scsi_dif_tuple { 1768 __be16 guard; /* Checksum */ 1769 __be16 app_tag; /* APPL identifier */ 1770 __be32 ref_tag; /* Target LBA or indirect LBA */ 1771 }; 1772 1773 /* 1774 * Checks the guard or meta-data for the type of error 1775 * detected by the HBA. In case of errors, we set the 1776 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1777 * to indicate to the kernel that the HBA detected error. 1778 */ 1779 static inline int 1780 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1781 { 1782 struct scsi_qla_host *vha = sp->fcport->vha; 1783 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1784 uint8_t *ap = &sts24->data[12]; 1785 uint8_t *ep = &sts24->data[20]; 1786 uint32_t e_ref_tag, a_ref_tag; 1787 uint16_t e_app_tag, a_app_tag; 1788 uint16_t e_guard, a_guard; 1789 1790 /* 1791 * swab32 of the "data" field in the beginning of qla2x00_status_entry() 1792 * would make guard field appear at offset 2 1793 */ 1794 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2)); 1795 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0)); 1796 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4)); 1797 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2)); 1798 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0)); 1799 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4)); 1800 1801 ql_dbg(ql_dbg_io, vha, 0x3023, 1802 "iocb(s) %p Returned STATUS.\n", sts24); 1803 1804 ql_dbg(ql_dbg_io, vha, 0x3024, 1805 "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1806 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1807 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n", 1808 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1809 a_app_tag, e_app_tag, a_guard, e_guard); 1810 1811 /* 1812 * Ignore sector if: 1813 * For type 3: ref & app tag is all 'f's 1814 * For type 0,1,2: app tag is all 'f's 1815 */ 1816 if ((a_app_tag == 0xffff) && 1817 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) || 1818 (a_ref_tag == 0xffffffff))) { 1819 uint32_t blocks_done, resid; 1820 sector_t lba_s = scsi_get_lba(cmd); 1821 1822 /* 2TB boundary case covered automatically with this */ 1823 blocks_done = e_ref_tag - (uint32_t)lba_s + 1; 1824 1825 resid = scsi_bufflen(cmd) - (blocks_done * 1826 cmd->device->sector_size); 1827 1828 scsi_set_resid(cmd, resid); 1829 cmd->result = DID_OK << 16; 1830 1831 /* Update protection tag */ 1832 if (scsi_prot_sg_count(cmd)) { 1833 uint32_t i, j = 0, k = 0, num_ent; 1834 struct scatterlist *sg; 1835 struct t10_pi_tuple *spt; 1836 1837 /* Patch the corresponding protection tags */ 1838 scsi_for_each_prot_sg(cmd, sg, 1839 scsi_prot_sg_count(cmd), i) { 1840 num_ent = sg_dma_len(sg) / 8; 1841 if (k + num_ent < blocks_done) { 1842 k += num_ent; 1843 continue; 1844 } 1845 j = blocks_done - k - 1; 1846 k = blocks_done; 1847 break; 1848 } 1849 1850 if (k != blocks_done) { 1851 ql_log(ql_log_warn, vha, 0x302f, 1852 "unexpected tag values tag:lba=%x:%llx)\n", 1853 e_ref_tag, (unsigned long long)lba_s); 1854 return 1; 1855 } 1856 1857 spt = page_address(sg_page(sg)) + sg->offset; 1858 spt += j; 1859 1860 spt->app_tag = 0xffff; 1861 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3) 1862 spt->ref_tag = 0xffffffff; 1863 } 1864 1865 return 0; 1866 } 1867 1868 /* check guard */ 1869 if (e_guard != a_guard) { 1870 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1871 0x10, 0x1); 1872 set_driver_byte(cmd, DRIVER_SENSE); 1873 set_host_byte(cmd, DID_ABORT); 1874 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1875 return 1; 1876 } 1877 1878 /* check ref tag */ 1879 if (e_ref_tag != a_ref_tag) { 1880 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1881 0x10, 0x3); 1882 set_driver_byte(cmd, DRIVER_SENSE); 1883 set_host_byte(cmd, DID_ABORT); 1884 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1885 return 1; 1886 } 1887 1888 /* check appl tag */ 1889 if (e_app_tag != a_app_tag) { 1890 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1891 0x10, 0x2); 1892 set_driver_byte(cmd, DRIVER_SENSE); 1893 set_host_byte(cmd, DID_ABORT); 1894 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1895 return 1; 1896 } 1897 1898 return 1; 1899 } 1900 1901 static void 1902 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt, 1903 struct req_que *req, uint32_t index) 1904 { 1905 struct qla_hw_data *ha = vha->hw; 1906 srb_t *sp; 1907 uint16_t comp_status; 1908 uint16_t scsi_status; 1909 uint16_t thread_id; 1910 uint32_t rval = EXT_STATUS_OK; 1911 struct bsg_job *bsg_job = NULL; 1912 struct fc_bsg_request *bsg_request; 1913 struct fc_bsg_reply *bsg_reply; 1914 sts_entry_t *sts; 1915 struct sts_entry_24xx *sts24; 1916 sts = (sts_entry_t *) pkt; 1917 sts24 = (struct sts_entry_24xx *) pkt; 1918 1919 /* Validate handle. */ 1920 if (index >= req->num_outstanding_cmds) { 1921 ql_log(ql_log_warn, vha, 0x70af, 1922 "Invalid SCSI completion handle 0x%x.\n", index); 1923 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1924 return; 1925 } 1926 1927 sp = req->outstanding_cmds[index]; 1928 if (!sp) { 1929 ql_log(ql_log_warn, vha, 0x70b0, 1930 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n", 1931 req->id, index); 1932 1933 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1934 return; 1935 } 1936 1937 /* Free outstanding command slot. */ 1938 req->outstanding_cmds[index] = NULL; 1939 bsg_job = sp->u.bsg_job; 1940 bsg_request = bsg_job->request; 1941 bsg_reply = bsg_job->reply; 1942 1943 if (IS_FWI2_CAPABLE(ha)) { 1944 comp_status = le16_to_cpu(sts24->comp_status); 1945 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1946 } else { 1947 comp_status = le16_to_cpu(sts->comp_status); 1948 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1949 } 1950 1951 thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1]; 1952 switch (comp_status) { 1953 case CS_COMPLETE: 1954 if (scsi_status == 0) { 1955 bsg_reply->reply_payload_rcv_len = 1956 bsg_job->reply_payload.payload_len; 1957 vha->qla_stats.input_bytes += 1958 bsg_reply->reply_payload_rcv_len; 1959 vha->qla_stats.input_requests++; 1960 rval = EXT_STATUS_OK; 1961 } 1962 goto done; 1963 1964 case CS_DATA_OVERRUN: 1965 ql_dbg(ql_dbg_user, vha, 0x70b1, 1966 "Command completed with date overrun thread_id=%d\n", 1967 thread_id); 1968 rval = EXT_STATUS_DATA_OVERRUN; 1969 break; 1970 1971 case CS_DATA_UNDERRUN: 1972 ql_dbg(ql_dbg_user, vha, 0x70b2, 1973 "Command completed with date underrun thread_id=%d\n", 1974 thread_id); 1975 rval = EXT_STATUS_DATA_UNDERRUN; 1976 break; 1977 case CS_BIDIR_RD_OVERRUN: 1978 ql_dbg(ql_dbg_user, vha, 0x70b3, 1979 "Command completed with read data overrun thread_id=%d\n", 1980 thread_id); 1981 rval = EXT_STATUS_DATA_OVERRUN; 1982 break; 1983 1984 case CS_BIDIR_RD_WR_OVERRUN: 1985 ql_dbg(ql_dbg_user, vha, 0x70b4, 1986 "Command completed with read and write data overrun " 1987 "thread_id=%d\n", thread_id); 1988 rval = EXT_STATUS_DATA_OVERRUN; 1989 break; 1990 1991 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN: 1992 ql_dbg(ql_dbg_user, vha, 0x70b5, 1993 "Command completed with read data over and write data " 1994 "underrun thread_id=%d\n", thread_id); 1995 rval = EXT_STATUS_DATA_OVERRUN; 1996 break; 1997 1998 case CS_BIDIR_RD_UNDERRUN: 1999 ql_dbg(ql_dbg_user, vha, 0x70b6, 2000 "Command completed with read data data underrun " 2001 "thread_id=%d\n", thread_id); 2002 rval = EXT_STATUS_DATA_UNDERRUN; 2003 break; 2004 2005 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN: 2006 ql_dbg(ql_dbg_user, vha, 0x70b7, 2007 "Command completed with read data under and write data " 2008 "overrun thread_id=%d\n", thread_id); 2009 rval = EXT_STATUS_DATA_UNDERRUN; 2010 break; 2011 2012 case CS_BIDIR_RD_WR_UNDERRUN: 2013 ql_dbg(ql_dbg_user, vha, 0x70b8, 2014 "Command completed with read and write data underrun " 2015 "thread_id=%d\n", thread_id); 2016 rval = EXT_STATUS_DATA_UNDERRUN; 2017 break; 2018 2019 case CS_BIDIR_DMA: 2020 ql_dbg(ql_dbg_user, vha, 0x70b9, 2021 "Command completed with data DMA error thread_id=%d\n", 2022 thread_id); 2023 rval = EXT_STATUS_DMA_ERR; 2024 break; 2025 2026 case CS_TIMEOUT: 2027 ql_dbg(ql_dbg_user, vha, 0x70ba, 2028 "Command completed with timeout thread_id=%d\n", 2029 thread_id); 2030 rval = EXT_STATUS_TIMEOUT; 2031 break; 2032 default: 2033 ql_dbg(ql_dbg_user, vha, 0x70bb, 2034 "Command completed with completion status=0x%x " 2035 "thread_id=%d\n", comp_status, thread_id); 2036 rval = EXT_STATUS_ERR; 2037 break; 2038 } 2039 bsg_reply->reply_payload_rcv_len = 0; 2040 2041 done: 2042 /* Return the vendor specific reply to API */ 2043 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval; 2044 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 2045 /* Always return DID_OK, bsg will send the vendor specific response 2046 * in this case only */ 2047 sp->done(vha, sp, (DID_OK << 6)); 2048 2049 } 2050 2051 /** 2052 * qla2x00_status_entry() - Process a Status IOCB entry. 2053 * @ha: SCSI driver HA context 2054 * @pkt: Entry pointer 2055 */ 2056 static void 2057 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 2058 { 2059 srb_t *sp; 2060 fc_port_t *fcport; 2061 struct scsi_cmnd *cp; 2062 sts_entry_t *sts; 2063 struct sts_entry_24xx *sts24; 2064 uint16_t comp_status; 2065 uint16_t scsi_status; 2066 uint16_t ox_id; 2067 uint8_t lscsi_status; 2068 int32_t resid; 2069 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 2070 fw_resid_len; 2071 uint8_t *rsp_info, *sense_data; 2072 struct qla_hw_data *ha = vha->hw; 2073 uint32_t handle; 2074 uint16_t que; 2075 struct req_que *req; 2076 int logit = 1; 2077 int res = 0; 2078 uint16_t state_flags = 0; 2079 uint16_t retry_delay = 0; 2080 2081 sts = (sts_entry_t *) pkt; 2082 sts24 = (struct sts_entry_24xx *) pkt; 2083 if (IS_FWI2_CAPABLE(ha)) { 2084 comp_status = le16_to_cpu(sts24->comp_status); 2085 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 2086 state_flags = le16_to_cpu(sts24->state_flags); 2087 } else { 2088 comp_status = le16_to_cpu(sts->comp_status); 2089 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 2090 } 2091 handle = (uint32_t) LSW(sts->handle); 2092 que = MSW(sts->handle); 2093 req = ha->req_q_map[que]; 2094 2095 /* Check for invalid queue pointer */ 2096 if (req == NULL || 2097 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) { 2098 ql_dbg(ql_dbg_io, vha, 0x3059, 2099 "Invalid status handle (0x%x): Bad req pointer. req=%p, " 2100 "que=%u.\n", sts->handle, req, que); 2101 return; 2102 } 2103 2104 /* Validate handle. */ 2105 if (handle < req->num_outstanding_cmds) { 2106 sp = req->outstanding_cmds[handle]; 2107 if (!sp) { 2108 ql_dbg(ql_dbg_io, vha, 0x3075, 2109 "%s(%ld): Already returned command for status handle (0x%x).\n", 2110 __func__, vha->host_no, sts->handle); 2111 return; 2112 } 2113 } else { 2114 ql_dbg(ql_dbg_io, vha, 0x3017, 2115 "Invalid status handle, out of range (0x%x).\n", 2116 sts->handle); 2117 2118 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 2119 if (IS_P3P_TYPE(ha)) 2120 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 2121 else 2122 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2123 qla2xxx_wake_dpc(vha); 2124 } 2125 return; 2126 } 2127 2128 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) { 2129 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle); 2130 return; 2131 } 2132 2133 /* Task Management completion. */ 2134 if (sp->type == SRB_TM_CMD) { 2135 qla24xx_tm_iocb_entry(vha, req, pkt); 2136 return; 2137 } 2138 2139 /* Fast path completion. */ 2140 if (comp_status == CS_COMPLETE && scsi_status == 0) { 2141 qla2x00_process_completed_request(vha, req, handle); 2142 2143 return; 2144 } 2145 2146 req->outstanding_cmds[handle] = NULL; 2147 cp = GET_CMD_SP(sp); 2148 if (cp == NULL) { 2149 ql_dbg(ql_dbg_io, vha, 0x3018, 2150 "Command already returned (0x%x/%p).\n", 2151 sts->handle, sp); 2152 2153 return; 2154 } 2155 2156 lscsi_status = scsi_status & STATUS_MASK; 2157 2158 fcport = sp->fcport; 2159 2160 ox_id = 0; 2161 sense_len = par_sense_len = rsp_info_len = resid_len = 2162 fw_resid_len = 0; 2163 if (IS_FWI2_CAPABLE(ha)) { 2164 if (scsi_status & SS_SENSE_LEN_VALID) 2165 sense_len = le32_to_cpu(sts24->sense_len); 2166 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2167 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 2168 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 2169 resid_len = le32_to_cpu(sts24->rsp_residual_count); 2170 if (comp_status == CS_DATA_UNDERRUN) 2171 fw_resid_len = le32_to_cpu(sts24->residual_len); 2172 rsp_info = sts24->data; 2173 sense_data = sts24->data; 2174 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 2175 ox_id = le16_to_cpu(sts24->ox_id); 2176 par_sense_len = sizeof(sts24->data); 2177 /* Valid values of the retry delay timer are 0x1-0xffef */ 2178 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) 2179 retry_delay = sts24->retry_delay; 2180 } else { 2181 if (scsi_status & SS_SENSE_LEN_VALID) 2182 sense_len = le16_to_cpu(sts->req_sense_length); 2183 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2184 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 2185 resid_len = le32_to_cpu(sts->residual_length); 2186 rsp_info = sts->rsp_info; 2187 sense_data = sts->req_sense_data; 2188 par_sense_len = sizeof(sts->req_sense_data); 2189 } 2190 2191 /* Check for any FCP transport errors. */ 2192 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 2193 /* Sense data lies beyond any FCP RESPONSE data. */ 2194 if (IS_FWI2_CAPABLE(ha)) { 2195 sense_data += rsp_info_len; 2196 par_sense_len -= rsp_info_len; 2197 } 2198 if (rsp_info_len > 3 && rsp_info[3]) { 2199 ql_dbg(ql_dbg_io, fcport->vha, 0x3019, 2200 "FCP I/O protocol failure (0x%x/0x%x).\n", 2201 rsp_info_len, rsp_info[3]); 2202 2203 res = DID_BUS_BUSY << 16; 2204 goto out; 2205 } 2206 } 2207 2208 /* Check for overrun. */ 2209 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 2210 scsi_status & SS_RESIDUAL_OVER) 2211 comp_status = CS_DATA_OVERRUN; 2212 2213 /* 2214 * Check retry_delay_timer value if we receive a busy or 2215 * queue full. 2216 */ 2217 if (lscsi_status == SAM_STAT_TASK_SET_FULL || 2218 lscsi_status == SAM_STAT_BUSY) 2219 qla2x00_set_retry_delay_timestamp(fcport, retry_delay); 2220 2221 /* 2222 * Based on Host and scsi status generate status code for Linux 2223 */ 2224 switch (comp_status) { 2225 case CS_COMPLETE: 2226 case CS_QUEUE_FULL: 2227 if (scsi_status == 0) { 2228 res = DID_OK << 16; 2229 break; 2230 } 2231 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 2232 resid = resid_len; 2233 scsi_set_resid(cp, resid); 2234 2235 if (!lscsi_status && 2236 ((unsigned)(scsi_bufflen(cp) - resid) < 2237 cp->underflow)) { 2238 ql_dbg(ql_dbg_io, fcport->vha, 0x301a, 2239 "Mid-layer underflow " 2240 "detected (0x%x of 0x%x bytes).\n", 2241 resid, scsi_bufflen(cp)); 2242 2243 res = DID_ERROR << 16; 2244 break; 2245 } 2246 } 2247 res = DID_OK << 16 | lscsi_status; 2248 2249 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2250 ql_dbg(ql_dbg_io, fcport->vha, 0x301b, 2251 "QUEUE FULL detected.\n"); 2252 break; 2253 } 2254 logit = 0; 2255 if (lscsi_status != SS_CHECK_CONDITION) 2256 break; 2257 2258 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2259 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2260 break; 2261 2262 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 2263 rsp, res); 2264 break; 2265 2266 case CS_DATA_UNDERRUN: 2267 /* Use F/W calculated residual length. */ 2268 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 2269 scsi_set_resid(cp, resid); 2270 if (scsi_status & SS_RESIDUAL_UNDER) { 2271 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 2272 ql_dbg(ql_dbg_io, fcport->vha, 0x301d, 2273 "Dropped frame(s) detected " 2274 "(0x%x of 0x%x bytes).\n", 2275 resid, scsi_bufflen(cp)); 2276 2277 res = DID_ERROR << 16 | lscsi_status; 2278 goto check_scsi_status; 2279 } 2280 2281 if (!lscsi_status && 2282 ((unsigned)(scsi_bufflen(cp) - resid) < 2283 cp->underflow)) { 2284 ql_dbg(ql_dbg_io, fcport->vha, 0x301e, 2285 "Mid-layer underflow " 2286 "detected (0x%x of 0x%x bytes).\n", 2287 resid, scsi_bufflen(cp)); 2288 2289 res = DID_ERROR << 16; 2290 break; 2291 } 2292 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL && 2293 lscsi_status != SAM_STAT_BUSY) { 2294 /* 2295 * scsi status of task set and busy are considered to be 2296 * task not completed. 2297 */ 2298 2299 ql_dbg(ql_dbg_io, fcport->vha, 0x301f, 2300 "Dropped frame(s) detected (0x%x " 2301 "of 0x%x bytes).\n", resid, 2302 scsi_bufflen(cp)); 2303 2304 res = DID_ERROR << 16 | lscsi_status; 2305 goto check_scsi_status; 2306 } else { 2307 ql_dbg(ql_dbg_io, fcport->vha, 0x3030, 2308 "scsi_status: 0x%x, lscsi_status: 0x%x\n", 2309 scsi_status, lscsi_status); 2310 } 2311 2312 res = DID_OK << 16 | lscsi_status; 2313 logit = 0; 2314 2315 check_scsi_status: 2316 /* 2317 * Check to see if SCSI Status is non zero. If so report SCSI 2318 * Status. 2319 */ 2320 if (lscsi_status != 0) { 2321 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2322 ql_dbg(ql_dbg_io, fcport->vha, 0x3020, 2323 "QUEUE FULL detected.\n"); 2324 logit = 1; 2325 break; 2326 } 2327 if (lscsi_status != SS_CHECK_CONDITION) 2328 break; 2329 2330 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2331 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2332 break; 2333 2334 qla2x00_handle_sense(sp, sense_data, par_sense_len, 2335 sense_len, rsp, res); 2336 } 2337 break; 2338 2339 case CS_PORT_LOGGED_OUT: 2340 case CS_PORT_CONFIG_CHG: 2341 case CS_PORT_BUSY: 2342 case CS_INCOMPLETE: 2343 case CS_PORT_UNAVAILABLE: 2344 case CS_TIMEOUT: 2345 case CS_RESET: 2346 2347 /* 2348 * We are going to have the fc class block the rport 2349 * while we try to recover so instruct the mid layer 2350 * to requeue until the class decides how to handle this. 2351 */ 2352 res = DID_TRANSPORT_DISRUPTED << 16; 2353 2354 if (comp_status == CS_TIMEOUT) { 2355 if (IS_FWI2_CAPABLE(ha)) 2356 break; 2357 else if ((le16_to_cpu(sts->status_flags) & 2358 SF_LOGOUT_SENT) == 0) 2359 break; 2360 } 2361 2362 ql_dbg(ql_dbg_io, fcport->vha, 0x3021, 2363 "Port to be marked lost on fcport=%02x%02x%02x, current " 2364 "port state= %s.\n", fcport->d_id.b.domain, 2365 fcport->d_id.b.area, fcport->d_id.b.al_pa, 2366 port_state_str[atomic_read(&fcport->state)]); 2367 2368 if (atomic_read(&fcport->state) == FCS_ONLINE) 2369 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 2370 break; 2371 2372 case CS_ABORTED: 2373 res = DID_RESET << 16; 2374 break; 2375 2376 case CS_DIF_ERROR: 2377 logit = qla2x00_handle_dif_error(sp, sts24); 2378 res = cp->result; 2379 break; 2380 2381 case CS_TRANSPORT: 2382 res = DID_ERROR << 16; 2383 2384 if (!IS_PI_SPLIT_DET_CAPABLE(ha)) 2385 break; 2386 2387 if (state_flags & BIT_4) 2388 scmd_printk(KERN_WARNING, cp, 2389 "Unsupported device '%s' found.\n", 2390 cp->device->vendor); 2391 break; 2392 2393 default: 2394 res = DID_ERROR << 16; 2395 break; 2396 } 2397 2398 out: 2399 if (logit) 2400 ql_dbg(ql_dbg_io, fcport->vha, 0x3022, 2401 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu " 2402 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x " 2403 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n", 2404 comp_status, scsi_status, res, vha->host_no, 2405 cp->device->id, cp->device->lun, fcport->d_id.b.domain, 2406 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id, 2407 cp->cmnd, scsi_bufflen(cp), rsp_info_len, 2408 resid_len, fw_resid_len, sp, cp); 2409 2410 if (rsp->status_srb == NULL) 2411 sp->done(ha, sp, res); 2412 } 2413 2414 /** 2415 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 2416 * @ha: SCSI driver HA context 2417 * @pkt: Entry pointer 2418 * 2419 * Extended sense data. 2420 */ 2421 static void 2422 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 2423 { 2424 uint8_t sense_sz = 0; 2425 struct qla_hw_data *ha = rsp->hw; 2426 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 2427 srb_t *sp = rsp->status_srb; 2428 struct scsi_cmnd *cp; 2429 uint32_t sense_len; 2430 uint8_t *sense_ptr; 2431 2432 if (!sp || !GET_CMD_SENSE_LEN(sp)) 2433 return; 2434 2435 sense_len = GET_CMD_SENSE_LEN(sp); 2436 sense_ptr = GET_CMD_SENSE_PTR(sp); 2437 2438 cp = GET_CMD_SP(sp); 2439 if (cp == NULL) { 2440 ql_log(ql_log_warn, vha, 0x3025, 2441 "cmd is NULL: already returned to OS (sp=%p).\n", sp); 2442 2443 rsp->status_srb = NULL; 2444 return; 2445 } 2446 2447 if (sense_len > sizeof(pkt->data)) 2448 sense_sz = sizeof(pkt->data); 2449 else 2450 sense_sz = sense_len; 2451 2452 /* Move sense data. */ 2453 if (IS_FWI2_CAPABLE(ha)) 2454 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 2455 memcpy(sense_ptr, pkt->data, sense_sz); 2456 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c, 2457 sense_ptr, sense_sz); 2458 2459 sense_len -= sense_sz; 2460 sense_ptr += sense_sz; 2461 2462 SET_CMD_SENSE_PTR(sp, sense_ptr); 2463 SET_CMD_SENSE_LEN(sp, sense_len); 2464 2465 /* Place command on done queue. */ 2466 if (sense_len == 0) { 2467 rsp->status_srb = NULL; 2468 sp->done(ha, sp, cp->result); 2469 } 2470 } 2471 2472 /** 2473 * qla2x00_error_entry() - Process an error entry. 2474 * @ha: SCSI driver HA context 2475 * @pkt: Entry pointer 2476 */ 2477 static void 2478 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 2479 { 2480 srb_t *sp; 2481 struct qla_hw_data *ha = vha->hw; 2482 const char func[] = "ERROR-IOCB"; 2483 uint16_t que = MSW(pkt->handle); 2484 struct req_que *req = NULL; 2485 int res = DID_ERROR << 16; 2486 2487 ql_dbg(ql_dbg_async, vha, 0x502a, 2488 "type of error status in response: 0x%x\n", pkt->entry_status); 2489 2490 if (que >= ha->max_req_queues || !ha->req_q_map[que]) 2491 goto fatal; 2492 2493 req = ha->req_q_map[que]; 2494 2495 if (pkt->entry_status & RF_BUSY) 2496 res = DID_BUS_BUSY << 16; 2497 2498 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2499 if (sp) { 2500 sp->done(ha, sp, res); 2501 return; 2502 } 2503 fatal: 2504 ql_log(ql_log_warn, vha, 0x5030, 2505 "Error entry - invalid handle/queue (%04x).\n", que); 2506 } 2507 2508 /** 2509 * qla24xx_mbx_completion() - Process mailbox command completions. 2510 * @ha: SCSI driver HA context 2511 * @mb0: Mailbox0 register 2512 */ 2513 static void 2514 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 2515 { 2516 uint16_t cnt; 2517 uint32_t mboxes; 2518 uint16_t __iomem *wptr; 2519 struct qla_hw_data *ha = vha->hw; 2520 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2521 2522 /* Read all mbox registers? */ 2523 mboxes = (1 << ha->mbx_count) - 1; 2524 if (!ha->mcp) 2525 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n"); 2526 else 2527 mboxes = ha->mcp->in_mb; 2528 2529 /* Load return mailbox registers. */ 2530 ha->flags.mbox_int = 1; 2531 ha->mailbox_out[0] = mb0; 2532 mboxes >>= 1; 2533 wptr = (uint16_t __iomem *)®->mailbox1; 2534 2535 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 2536 if (mboxes & BIT_0) 2537 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 2538 2539 mboxes >>= 1; 2540 wptr++; 2541 } 2542 } 2543 2544 static void 2545 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 2546 struct abort_entry_24xx *pkt) 2547 { 2548 const char func[] = "ABT_IOCB"; 2549 srb_t *sp; 2550 struct srb_iocb *abt; 2551 2552 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2553 if (!sp) 2554 return; 2555 2556 abt = &sp->u.iocb_cmd; 2557 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle); 2558 sp->done(vha, sp, 0); 2559 } 2560 2561 /** 2562 * qla24xx_process_response_queue() - Process response queue entries. 2563 * @ha: SCSI driver HA context 2564 */ 2565 void qla24xx_process_response_queue(struct scsi_qla_host *vha, 2566 struct rsp_que *rsp) 2567 { 2568 struct sts_entry_24xx *pkt; 2569 struct qla_hw_data *ha = vha->hw; 2570 2571 if (!vha->flags.online) 2572 return; 2573 2574 if (rsp->msix && rsp->msix->cpuid != smp_processor_id()) { 2575 /* if kernel does not notify qla of IRQ's CPU change, 2576 * then set it here. 2577 */ 2578 rsp->msix->cpuid = smp_processor_id(); 2579 ha->tgt.rspq_vector_cpuid = rsp->msix->cpuid; 2580 } 2581 2582 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 2583 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 2584 2585 rsp->ring_index++; 2586 if (rsp->ring_index == rsp->length) { 2587 rsp->ring_index = 0; 2588 rsp->ring_ptr = rsp->ring; 2589 } else { 2590 rsp->ring_ptr++; 2591 } 2592 2593 if (pkt->entry_status != 0) { 2594 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 2595 2596 if (qlt_24xx_process_response_error(vha, pkt)) 2597 goto process_err; 2598 2599 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2600 wmb(); 2601 continue; 2602 } 2603 process_err: 2604 2605 switch (pkt->entry_type) { 2606 case STATUS_TYPE: 2607 qla2x00_status_entry(vha, rsp, pkt); 2608 break; 2609 case STATUS_CONT_TYPE: 2610 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 2611 break; 2612 case VP_RPT_ID_IOCB_TYPE: 2613 qla24xx_report_id_acquisition(vha, 2614 (struct vp_rpt_id_entry_24xx *)pkt); 2615 break; 2616 case LOGINOUT_PORT_IOCB_TYPE: 2617 qla24xx_logio_entry(vha, rsp->req, 2618 (struct logio_entry_24xx *)pkt); 2619 break; 2620 case CT_IOCB_TYPE: 2621 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2622 break; 2623 case ELS_IOCB_TYPE: 2624 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2625 break; 2626 case ABTS_RECV_24XX: 2627 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 2628 /* ensure that the ATIO queue is empty */ 2629 qlt_handle_abts_recv(vha, (response_t *)pkt); 2630 break; 2631 } else { 2632 /* drop through */ 2633 qlt_24xx_process_atio_queue(vha, 1); 2634 } 2635 case ABTS_RESP_24XX: 2636 case CTIO_TYPE7: 2637 case NOTIFY_ACK_TYPE: 2638 case CTIO_CRC2: 2639 qlt_response_pkt_all_vps(vha, (response_t *)pkt); 2640 break; 2641 case MARKER_TYPE: 2642 /* Do nothing in this case, this check is to prevent it 2643 * from falling into default case 2644 */ 2645 break; 2646 case ABORT_IOCB_TYPE: 2647 qla24xx_abort_iocb_entry(vha, rsp->req, 2648 (struct abort_entry_24xx *)pkt); 2649 break; 2650 default: 2651 /* Type Not Supported. */ 2652 ql_dbg(ql_dbg_async, vha, 0x5042, 2653 "Received unknown response pkt type %x " 2654 "entry status=%x.\n", 2655 pkt->entry_type, pkt->entry_status); 2656 break; 2657 } 2658 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2659 wmb(); 2660 } 2661 2662 /* Adjust ring index */ 2663 if (IS_P3P_TYPE(ha)) { 2664 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2665 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2666 } else 2667 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2668 } 2669 2670 static void 2671 qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2672 { 2673 int rval; 2674 uint32_t cnt; 2675 struct qla_hw_data *ha = vha->hw; 2676 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2677 2678 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) && 2679 !IS_QLA27XX(ha)) 2680 return; 2681 2682 rval = QLA_SUCCESS; 2683 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2684 RD_REG_DWORD(®->iobase_addr); 2685 WRT_REG_DWORD(®->iobase_window, 0x0001); 2686 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2687 rval == QLA_SUCCESS; cnt--) { 2688 if (cnt) { 2689 WRT_REG_DWORD(®->iobase_window, 0x0001); 2690 udelay(10); 2691 } else 2692 rval = QLA_FUNCTION_TIMEOUT; 2693 } 2694 if (rval == QLA_SUCCESS) 2695 goto next_test; 2696 2697 rval = QLA_SUCCESS; 2698 WRT_REG_DWORD(®->iobase_window, 0x0003); 2699 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2700 rval == QLA_SUCCESS; cnt--) { 2701 if (cnt) { 2702 WRT_REG_DWORD(®->iobase_window, 0x0003); 2703 udelay(10); 2704 } else 2705 rval = QLA_FUNCTION_TIMEOUT; 2706 } 2707 if (rval != QLA_SUCCESS) 2708 goto done; 2709 2710 next_test: 2711 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2712 ql_log(ql_log_info, vha, 0x504c, 2713 "Additional code -- 0x55AA.\n"); 2714 2715 done: 2716 WRT_REG_DWORD(®->iobase_window, 0x0000); 2717 RD_REG_DWORD(®->iobase_window); 2718 } 2719 2720 /** 2721 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx. 2722 * @irq: 2723 * @dev_id: SCSI driver HA context 2724 * 2725 * Called by system whenever the host adapter generates an interrupt. 2726 * 2727 * Returns handled flag. 2728 */ 2729 irqreturn_t 2730 qla24xx_intr_handler(int irq, void *dev_id) 2731 { 2732 scsi_qla_host_t *vha; 2733 struct qla_hw_data *ha; 2734 struct device_reg_24xx __iomem *reg; 2735 int status; 2736 unsigned long iter; 2737 uint32_t stat; 2738 uint32_t hccr; 2739 uint16_t mb[8]; 2740 struct rsp_que *rsp; 2741 unsigned long flags; 2742 2743 rsp = (struct rsp_que *) dev_id; 2744 if (!rsp) { 2745 ql_log(ql_log_info, NULL, 0x5059, 2746 "%s: NULL response queue pointer.\n", __func__); 2747 return IRQ_NONE; 2748 } 2749 2750 ha = rsp->hw; 2751 reg = &ha->iobase->isp24; 2752 status = 0; 2753 2754 if (unlikely(pci_channel_offline(ha->pdev))) 2755 return IRQ_HANDLED; 2756 2757 spin_lock_irqsave(&ha->hardware_lock, flags); 2758 vha = pci_get_drvdata(ha->pdev); 2759 for (iter = 50; iter--; ) { 2760 stat = RD_REG_DWORD(®->host_status); 2761 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2762 break; 2763 if (stat & HSRX_RISC_PAUSED) { 2764 if (unlikely(pci_channel_offline(ha->pdev))) 2765 break; 2766 2767 hccr = RD_REG_DWORD(®->hccr); 2768 2769 ql_log(ql_log_warn, vha, 0x504b, 2770 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2771 hccr); 2772 2773 qla2xxx_check_risc_status(vha); 2774 2775 ha->isp_ops->fw_dump(vha, 1); 2776 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2777 break; 2778 } else if ((stat & HSRX_RISC_INT) == 0) 2779 break; 2780 2781 switch (stat & 0xff) { 2782 case INTR_ROM_MB_SUCCESS: 2783 case INTR_ROM_MB_FAILED: 2784 case INTR_MB_SUCCESS: 2785 case INTR_MB_FAILED: 2786 qla24xx_mbx_completion(vha, MSW(stat)); 2787 status |= MBX_INTERRUPT; 2788 2789 break; 2790 case INTR_ASYNC_EVENT: 2791 mb[0] = MSW(stat); 2792 mb[1] = RD_REG_WORD(®->mailbox1); 2793 mb[2] = RD_REG_WORD(®->mailbox2); 2794 mb[3] = RD_REG_WORD(®->mailbox3); 2795 qla2x00_async_event(vha, rsp, mb); 2796 break; 2797 case INTR_RSP_QUE_UPDATE: 2798 case INTR_RSP_QUE_UPDATE_83XX: 2799 qla24xx_process_response_queue(vha, rsp); 2800 break; 2801 case INTR_ATIO_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 break; 2807 } 2808 case INTR_ATIO_RSP_QUE_UPDATE: { 2809 unsigned long flags2; 2810 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2811 qlt_24xx_process_atio_queue(vha, 1); 2812 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2813 2814 qla24xx_process_response_queue(vha, rsp); 2815 break; 2816 } 2817 default: 2818 ql_dbg(ql_dbg_async, vha, 0x504f, 2819 "Unrecognized interrupt type (%d).\n", stat * 0xff); 2820 break; 2821 } 2822 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2823 RD_REG_DWORD_RELAXED(®->hccr); 2824 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1))) 2825 ndelay(3500); 2826 } 2827 qla2x00_handle_mbx_completion(ha, status); 2828 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2829 2830 return IRQ_HANDLED; 2831 } 2832 2833 static irqreturn_t 2834 qla24xx_msix_rsp_q(int irq, void *dev_id) 2835 { 2836 struct qla_hw_data *ha; 2837 struct rsp_que *rsp; 2838 struct device_reg_24xx __iomem *reg; 2839 struct scsi_qla_host *vha; 2840 unsigned long flags; 2841 uint32_t stat = 0; 2842 2843 rsp = (struct rsp_que *) dev_id; 2844 if (!rsp) { 2845 ql_log(ql_log_info, NULL, 0x505a, 2846 "%s: NULL response queue pointer.\n", __func__); 2847 return IRQ_NONE; 2848 } 2849 ha = rsp->hw; 2850 reg = &ha->iobase->isp24; 2851 2852 spin_lock_irqsave(&ha->hardware_lock, flags); 2853 2854 vha = pci_get_drvdata(ha->pdev); 2855 /* 2856 * Use host_status register to check to PCI disconnection before we 2857 * we process the response queue. 2858 */ 2859 stat = RD_REG_DWORD(®->host_status); 2860 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2861 goto out; 2862 qla24xx_process_response_queue(vha, rsp); 2863 if (!ha->flags.disable_msix_handshake) { 2864 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2865 RD_REG_DWORD_RELAXED(®->hccr); 2866 } 2867 out: 2868 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2869 2870 return IRQ_HANDLED; 2871 } 2872 2873 static irqreturn_t 2874 qla25xx_msix_rsp_q(int irq, void *dev_id) 2875 { 2876 struct qla_hw_data *ha; 2877 scsi_qla_host_t *vha; 2878 struct rsp_que *rsp; 2879 struct device_reg_24xx __iomem *reg; 2880 unsigned long flags; 2881 uint32_t hccr = 0; 2882 2883 rsp = (struct rsp_que *) dev_id; 2884 if (!rsp) { 2885 ql_log(ql_log_info, NULL, 0x505b, 2886 "%s: NULL response queue pointer.\n", __func__); 2887 return IRQ_NONE; 2888 } 2889 ha = rsp->hw; 2890 vha = pci_get_drvdata(ha->pdev); 2891 2892 /* Clear the interrupt, if enabled, for this response queue */ 2893 if (!ha->flags.disable_msix_handshake) { 2894 reg = &ha->iobase->isp24; 2895 spin_lock_irqsave(&ha->hardware_lock, flags); 2896 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2897 hccr = RD_REG_DWORD_RELAXED(®->hccr); 2898 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2899 } 2900 if (qla2x00_check_reg32_for_disconnect(vha, hccr)) 2901 goto out; 2902 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work); 2903 2904 out: 2905 return IRQ_HANDLED; 2906 } 2907 2908 static irqreturn_t 2909 qla24xx_msix_default(int irq, void *dev_id) 2910 { 2911 scsi_qla_host_t *vha; 2912 struct qla_hw_data *ha; 2913 struct rsp_que *rsp; 2914 struct device_reg_24xx __iomem *reg; 2915 int status; 2916 uint32_t stat; 2917 uint32_t hccr; 2918 uint16_t mb[8]; 2919 unsigned long flags; 2920 2921 rsp = (struct rsp_que *) dev_id; 2922 if (!rsp) { 2923 ql_log(ql_log_info, NULL, 0x505c, 2924 "%s: NULL response queue pointer.\n", __func__); 2925 return IRQ_NONE; 2926 } 2927 ha = rsp->hw; 2928 reg = &ha->iobase->isp24; 2929 status = 0; 2930 2931 spin_lock_irqsave(&ha->hardware_lock, flags); 2932 vha = pci_get_drvdata(ha->pdev); 2933 do { 2934 stat = RD_REG_DWORD(®->host_status); 2935 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2936 break; 2937 if (stat & HSRX_RISC_PAUSED) { 2938 if (unlikely(pci_channel_offline(ha->pdev))) 2939 break; 2940 2941 hccr = RD_REG_DWORD(®->hccr); 2942 2943 ql_log(ql_log_info, vha, 0x5050, 2944 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2945 hccr); 2946 2947 qla2xxx_check_risc_status(vha); 2948 2949 ha->isp_ops->fw_dump(vha, 1); 2950 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2951 break; 2952 } else if ((stat & HSRX_RISC_INT) == 0) 2953 break; 2954 2955 switch (stat & 0xff) { 2956 case INTR_ROM_MB_SUCCESS: 2957 case INTR_ROM_MB_FAILED: 2958 case INTR_MB_SUCCESS: 2959 case INTR_MB_FAILED: 2960 qla24xx_mbx_completion(vha, MSW(stat)); 2961 status |= MBX_INTERRUPT; 2962 2963 break; 2964 case INTR_ASYNC_EVENT: 2965 mb[0] = MSW(stat); 2966 mb[1] = RD_REG_WORD(®->mailbox1); 2967 mb[2] = RD_REG_WORD(®->mailbox2); 2968 mb[3] = RD_REG_WORD(®->mailbox3); 2969 qla2x00_async_event(vha, rsp, mb); 2970 break; 2971 case INTR_RSP_QUE_UPDATE: 2972 case INTR_RSP_QUE_UPDATE_83XX: 2973 qla24xx_process_response_queue(vha, rsp); 2974 break; 2975 case INTR_ATIO_QUE_UPDATE:{ 2976 unsigned long flags2; 2977 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2978 qlt_24xx_process_atio_queue(vha, 1); 2979 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2980 break; 2981 } 2982 case INTR_ATIO_RSP_QUE_UPDATE: { 2983 unsigned long flags2; 2984 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2985 qlt_24xx_process_atio_queue(vha, 1); 2986 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2987 2988 qla24xx_process_response_queue(vha, rsp); 2989 break; 2990 } 2991 default: 2992 ql_dbg(ql_dbg_async, vha, 0x5051, 2993 "Unrecognized interrupt type (%d).\n", stat & 0xff); 2994 break; 2995 } 2996 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2997 } while (0); 2998 qla2x00_handle_mbx_completion(ha, status); 2999 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3000 3001 return IRQ_HANDLED; 3002 } 3003 3004 /* Interrupt handling helpers. */ 3005 3006 struct qla_init_msix_entry { 3007 const char *name; 3008 irq_handler_t handler; 3009 }; 3010 3011 static struct qla_init_msix_entry msix_entries[3] = { 3012 { "qla2xxx (default)", qla24xx_msix_default }, 3013 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 3014 { "qla2xxx (multiq)", qla25xx_msix_rsp_q }, 3015 }; 3016 3017 static struct qla_init_msix_entry qla82xx_msix_entries[2] = { 3018 { "qla2xxx (default)", qla82xx_msix_default }, 3019 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 3020 }; 3021 3022 static struct qla_init_msix_entry qla83xx_msix_entries[3] = { 3023 { "qla2xxx (default)", qla24xx_msix_default }, 3024 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 3025 { "qla2xxx (atio_q)", qla83xx_msix_atio_q }, 3026 }; 3027 3028 static void 3029 qla24xx_disable_msix(struct qla_hw_data *ha) 3030 { 3031 int i; 3032 struct qla_msix_entry *qentry; 3033 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3034 3035 for (i = 0; i < ha->msix_count; i++) { 3036 qentry = &ha->msix_entries[i]; 3037 if (qentry->have_irq) { 3038 /* un-register irq cpu affinity notification */ 3039 irq_set_affinity_notifier(qentry->vector, NULL); 3040 free_irq(qentry->vector, qentry->rsp); 3041 } 3042 } 3043 pci_disable_msix(ha->pdev); 3044 kfree(ha->msix_entries); 3045 ha->msix_entries = NULL; 3046 ha->flags.msix_enabled = 0; 3047 ql_dbg(ql_dbg_init, vha, 0x0042, 3048 "Disabled the MSI.\n"); 3049 } 3050 3051 static int 3052 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 3053 { 3054 #define MIN_MSIX_COUNT 2 3055 #define ATIO_VECTOR 2 3056 int i, ret; 3057 struct msix_entry *entries; 3058 struct qla_msix_entry *qentry; 3059 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3060 3061 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, 3062 GFP_KERNEL); 3063 if (!entries) { 3064 ql_log(ql_log_warn, vha, 0x00bc, 3065 "Failed to allocate memory for msix_entry.\n"); 3066 return -ENOMEM; 3067 } 3068 3069 for (i = 0; i < ha->msix_count; i++) 3070 entries[i].entry = i; 3071 3072 ret = pci_enable_msix_range(ha->pdev, 3073 entries, MIN_MSIX_COUNT, ha->msix_count); 3074 if (ret < 0) { 3075 ql_log(ql_log_fatal, vha, 0x00c7, 3076 "MSI-X: Failed to enable support, " 3077 "giving up -- %d/%d.\n", 3078 ha->msix_count, ret); 3079 goto msix_out; 3080 } else if (ret < ha->msix_count) { 3081 ql_log(ql_log_warn, vha, 0x00c6, 3082 "MSI-X: Failed to enable support " 3083 "-- %d/%d\n Retry with %d vectors.\n", 3084 ha->msix_count, ret, ret); 3085 ha->msix_count = ret; 3086 ha->max_rsp_queues = ha->msix_count - 1; 3087 } 3088 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 3089 ha->msix_count, GFP_KERNEL); 3090 if (!ha->msix_entries) { 3091 ql_log(ql_log_fatal, vha, 0x00c8, 3092 "Failed to allocate memory for ha->msix_entries.\n"); 3093 ret = -ENOMEM; 3094 goto msix_out; 3095 } 3096 ha->flags.msix_enabled = 1; 3097 3098 for (i = 0; i < ha->msix_count; i++) { 3099 qentry = &ha->msix_entries[i]; 3100 qentry->vector = entries[i].vector; 3101 qentry->entry = entries[i].entry; 3102 qentry->have_irq = 0; 3103 qentry->rsp = NULL; 3104 qentry->irq_notify.notify = qla_irq_affinity_notify; 3105 qentry->irq_notify.release = qla_irq_affinity_release; 3106 qentry->cpuid = -1; 3107 } 3108 3109 /* Enable MSI-X vectors for the base queue */ 3110 for (i = 0; i < 2; i++) { 3111 qentry = &ha->msix_entries[i]; 3112 qentry->rsp = rsp; 3113 rsp->msix = qentry; 3114 if (IS_P3P_TYPE(ha)) 3115 ret = request_irq(qentry->vector, 3116 qla82xx_msix_entries[i].handler, 3117 0, qla82xx_msix_entries[i].name, rsp); 3118 else 3119 ret = request_irq(qentry->vector, 3120 msix_entries[i].handler, 3121 0, msix_entries[i].name, rsp); 3122 if (ret) 3123 goto msix_register_fail; 3124 qentry->have_irq = 1; 3125 3126 /* Register for CPU affinity notification. */ 3127 irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify); 3128 3129 /* Schedule work (ie. trigger a notification) to read cpu 3130 * mask for this specific irq. 3131 * kref_get is required because 3132 * irq_affinity_notify() will do 3133 * kref_put(). 3134 */ 3135 kref_get(&qentry->irq_notify.kref); 3136 schedule_work(&qentry->irq_notify.work); 3137 } 3138 3139 /* 3140 * If target mode is enable, also request the vector for the ATIO 3141 * queue. 3142 */ 3143 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) { 3144 qentry = &ha->msix_entries[ATIO_VECTOR]; 3145 qentry->rsp = rsp; 3146 rsp->msix = qentry; 3147 ret = request_irq(qentry->vector, 3148 qla83xx_msix_entries[ATIO_VECTOR].handler, 3149 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp); 3150 qentry->have_irq = 1; 3151 } 3152 3153 msix_register_fail: 3154 if (ret) { 3155 ql_log(ql_log_fatal, vha, 0x00cb, 3156 "MSI-X: unable to register handler -- %x/%d.\n", 3157 qentry->vector, ret); 3158 qla24xx_disable_msix(ha); 3159 ha->mqenable = 0; 3160 goto msix_out; 3161 } 3162 3163 /* Enable MSI-X vector for response queue update for queue 0 */ 3164 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 3165 if (ha->msixbase && ha->mqiobase && 3166 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 3167 ha->mqenable = 1; 3168 } else 3169 if (ha->mqiobase 3170 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 3171 ha->mqenable = 1; 3172 ql_dbg(ql_dbg_multiq, vha, 0xc005, 3173 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3174 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3175 ql_dbg(ql_dbg_init, vha, 0x0055, 3176 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3177 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3178 3179 msix_out: 3180 kfree(entries); 3181 return ret; 3182 } 3183 3184 int 3185 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 3186 { 3187 int ret = QLA_FUNCTION_FAILED; 3188 device_reg_t *reg = ha->iobase; 3189 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3190 3191 /* If possible, enable MSI-X. */ 3192 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3193 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) && 3194 !IS_QLA27XX(ha)) 3195 goto skip_msi; 3196 3197 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 3198 (ha->pdev->subsystem_device == 0x7040 || 3199 ha->pdev->subsystem_device == 0x7041 || 3200 ha->pdev->subsystem_device == 0x1705)) { 3201 ql_log(ql_log_warn, vha, 0x0034, 3202 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n", 3203 ha->pdev->subsystem_vendor, 3204 ha->pdev->subsystem_device); 3205 goto skip_msi; 3206 } 3207 3208 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) { 3209 ql_log(ql_log_warn, vha, 0x0035, 3210 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n", 3211 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX); 3212 goto skip_msix; 3213 } 3214 3215 ret = qla24xx_enable_msix(ha, rsp); 3216 if (!ret) { 3217 ql_dbg(ql_dbg_init, vha, 0x0036, 3218 "MSI-X: Enabled (0x%X, 0x%X).\n", 3219 ha->chip_revision, ha->fw_attributes); 3220 goto clear_risc_ints; 3221 } 3222 3223 skip_msix: 3224 3225 ql_log(ql_log_info, vha, 0x0037, 3226 "Falling back-to MSI mode -%d.\n", ret); 3227 3228 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3229 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) && 3230 !IS_QLA27XX(ha)) 3231 goto skip_msi; 3232 3233 ret = pci_enable_msi(ha->pdev); 3234 if (!ret) { 3235 ql_dbg(ql_dbg_init, vha, 0x0038, 3236 "MSI: Enabled.\n"); 3237 ha->flags.msi_enabled = 1; 3238 } else 3239 ql_log(ql_log_warn, vha, 0x0039, 3240 "Falling back-to INTa mode -- %d.\n", ret); 3241 skip_msi: 3242 3243 /* Skip INTx on ISP82xx. */ 3244 if (!ha->flags.msi_enabled && IS_QLA82XX(ha)) 3245 return QLA_FUNCTION_FAILED; 3246 3247 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 3248 ha->flags.msi_enabled ? 0 : IRQF_SHARED, 3249 QLA2XXX_DRIVER_NAME, rsp); 3250 if (ret) { 3251 ql_log(ql_log_warn, vha, 0x003a, 3252 "Failed to reserve interrupt %d already in use.\n", 3253 ha->pdev->irq); 3254 goto fail; 3255 } else if (!ha->flags.msi_enabled) { 3256 ql_dbg(ql_dbg_init, vha, 0x0125, 3257 "INTa mode: Enabled.\n"); 3258 ha->flags.mr_intr_valid = 1; 3259 } 3260 3261 clear_risc_ints: 3262 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha)) 3263 goto fail; 3264 3265 spin_lock_irq(&ha->hardware_lock); 3266 WRT_REG_WORD(®->isp.semaphore, 0); 3267 spin_unlock_irq(&ha->hardware_lock); 3268 3269 fail: 3270 return ret; 3271 } 3272 3273 void 3274 qla2x00_free_irqs(scsi_qla_host_t *vha) 3275 { 3276 struct qla_hw_data *ha = vha->hw; 3277 struct rsp_que *rsp; 3278 3279 /* 3280 * We need to check that ha->rsp_q_map is valid in case we are called 3281 * from a probe failure context. 3282 */ 3283 if (!ha->rsp_q_map || !ha->rsp_q_map[0]) 3284 return; 3285 rsp = ha->rsp_q_map[0]; 3286 3287 if (ha->flags.msix_enabled) 3288 qla24xx_disable_msix(ha); 3289 else if (ha->flags.msi_enabled) { 3290 free_irq(ha->pdev->irq, rsp); 3291 pci_disable_msi(ha->pdev); 3292 } else 3293 free_irq(ha->pdev->irq, rsp); 3294 } 3295 3296 3297 int qla25xx_request_irq(struct rsp_que *rsp) 3298 { 3299 struct qla_hw_data *ha = rsp->hw; 3300 struct qla_init_msix_entry *intr = &msix_entries[2]; 3301 struct qla_msix_entry *msix = rsp->msix; 3302 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3303 int ret; 3304 3305 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); 3306 if (ret) { 3307 ql_log(ql_log_fatal, vha, 0x00e6, 3308 "MSI-X: Unable to register handler -- %x/%d.\n", 3309 msix->vector, ret); 3310 return ret; 3311 } 3312 msix->have_irq = 1; 3313 msix->rsp = rsp; 3314 return ret; 3315 } 3316 3317 3318 /* irq_set_affinity/irqbalance will trigger notification of cpu mask update */ 3319 static void qla_irq_affinity_notify(struct irq_affinity_notify *notify, 3320 const cpumask_t *mask) 3321 { 3322 struct qla_msix_entry *e = 3323 container_of(notify, struct qla_msix_entry, irq_notify); 3324 struct qla_hw_data *ha; 3325 struct scsi_qla_host *base_vha; 3326 3327 /* user is recommended to set mask to just 1 cpu */ 3328 e->cpuid = cpumask_first(mask); 3329 3330 ha = e->rsp->hw; 3331 base_vha = pci_get_drvdata(ha->pdev); 3332 3333 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3334 "%s: host %ld : vector %d cpu %d \n", __func__, 3335 base_vha->host_no, e->vector, e->cpuid); 3336 3337 if (e->have_irq) { 3338 if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) && 3339 (e->entry == QLA83XX_RSPQ_MSIX_ENTRY_NUMBER)) { 3340 ha->tgt.rspq_vector_cpuid = e->cpuid; 3341 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3342 "%s: host%ld: rspq vector %d cpu %d runtime change\n", 3343 __func__, base_vha->host_no, e->vector, e->cpuid); 3344 } 3345 } 3346 } 3347 3348 static void qla_irq_affinity_release(struct kref *ref) 3349 { 3350 struct irq_affinity_notify *notify = 3351 container_of(ref, struct irq_affinity_notify, kref); 3352 struct qla_msix_entry *e = 3353 container_of(notify, struct qla_msix_entry, irq_notify); 3354 struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev); 3355 3356 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3357 "%s: host%ld: vector %d cpu %d \n", __func__, 3358 base_vha->host_no, e->vector, e->cpuid); 3359 } 3360