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 22 /** 23 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 24 * @irq: 25 * @dev_id: SCSI driver HA context 26 * 27 * Called by system whenever the host adapter generates an interrupt. 28 * 29 * Returns handled flag. 30 */ 31 irqreturn_t 32 qla2100_intr_handler(int irq, void *dev_id) 33 { 34 scsi_qla_host_t *vha; 35 struct qla_hw_data *ha; 36 struct device_reg_2xxx __iomem *reg; 37 int status; 38 unsigned long iter; 39 uint16_t hccr; 40 uint16_t mb[4]; 41 struct rsp_que *rsp; 42 unsigned long flags; 43 44 rsp = (struct rsp_que *) dev_id; 45 if (!rsp) { 46 ql_log(ql_log_info, NULL, 0x505d, 47 "%s: NULL response queue pointer.\n", __func__); 48 return (IRQ_NONE); 49 } 50 51 ha = rsp->hw; 52 reg = &ha->iobase->isp; 53 status = 0; 54 55 spin_lock_irqsave(&ha->hardware_lock, flags); 56 vha = pci_get_drvdata(ha->pdev); 57 for (iter = 50; iter--; ) { 58 hccr = RD_REG_WORD(®->hccr); 59 if (qla2x00_check_reg16_for_disconnect(vha, hccr)) 60 break; 61 if (hccr & HCCR_RISC_PAUSE) { 62 if (pci_channel_offline(ha->pdev)) 63 break; 64 65 /* 66 * Issue a "HARD" reset in order for the RISC interrupt 67 * bit to be cleared. Schedule a big hammer to get 68 * out of the RISC PAUSED state. 69 */ 70 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 71 RD_REG_WORD(®->hccr); 72 73 ha->isp_ops->fw_dump(vha, 1); 74 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 75 break; 76 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 77 break; 78 79 if (RD_REG_WORD(®->semaphore) & BIT_0) { 80 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 81 RD_REG_WORD(®->hccr); 82 83 /* Get mailbox data. */ 84 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 85 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 86 qla2x00_mbx_completion(vha, mb[0]); 87 status |= MBX_INTERRUPT; 88 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 89 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 90 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 91 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 92 qla2x00_async_event(vha, rsp, mb); 93 } else { 94 /*EMPTY*/ 95 ql_dbg(ql_dbg_async, vha, 0x5025, 96 "Unrecognized interrupt type (%d).\n", 97 mb[0]); 98 } 99 /* Release mailbox registers. */ 100 WRT_REG_WORD(®->semaphore, 0); 101 RD_REG_WORD(®->semaphore); 102 } else { 103 qla2x00_process_response_queue(rsp); 104 105 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 106 RD_REG_WORD(®->hccr); 107 } 108 } 109 qla2x00_handle_mbx_completion(ha, status); 110 spin_unlock_irqrestore(&ha->hardware_lock, flags); 111 112 return (IRQ_HANDLED); 113 } 114 115 bool 116 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg) 117 { 118 /* Check for PCI disconnection */ 119 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) { 120 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) && 121 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) && 122 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) { 123 /* 124 * Schedule this (only once) on the default system 125 * workqueue so that all the adapter workqueues and the 126 * DPC thread can be shutdown cleanly. 127 */ 128 schedule_work(&vha->hw->board_disable); 129 } 130 return true; 131 } else 132 return false; 133 } 134 135 bool 136 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg) 137 { 138 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg); 139 } 140 141 /** 142 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 143 * @irq: 144 * @dev_id: SCSI driver HA context 145 * 146 * Called by system whenever the host adapter generates an interrupt. 147 * 148 * Returns handled flag. 149 */ 150 irqreturn_t 151 qla2300_intr_handler(int irq, void *dev_id) 152 { 153 scsi_qla_host_t *vha; 154 struct device_reg_2xxx __iomem *reg; 155 int status; 156 unsigned long iter; 157 uint32_t stat; 158 uint16_t hccr; 159 uint16_t mb[4]; 160 struct rsp_que *rsp; 161 struct qla_hw_data *ha; 162 unsigned long flags; 163 164 rsp = (struct rsp_que *) dev_id; 165 if (!rsp) { 166 ql_log(ql_log_info, NULL, 0x5058, 167 "%s: NULL response queue pointer.\n", __func__); 168 return (IRQ_NONE); 169 } 170 171 ha = rsp->hw; 172 reg = &ha->iobase->isp; 173 status = 0; 174 175 spin_lock_irqsave(&ha->hardware_lock, flags); 176 vha = pci_get_drvdata(ha->pdev); 177 for (iter = 50; iter--; ) { 178 stat = RD_REG_DWORD(®->u.isp2300.host_status); 179 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 180 break; 181 if (stat & HSR_RISC_PAUSED) { 182 if (unlikely(pci_channel_offline(ha->pdev))) 183 break; 184 185 hccr = RD_REG_WORD(®->hccr); 186 187 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 188 ql_log(ql_log_warn, vha, 0x5026, 189 "Parity error -- HCCR=%x, Dumping " 190 "firmware.\n", hccr); 191 else 192 ql_log(ql_log_warn, vha, 0x5027, 193 "RISC paused -- HCCR=%x, Dumping " 194 "firmware.\n", hccr); 195 196 /* 197 * Issue a "HARD" reset in order for the RISC 198 * interrupt bit to be cleared. Schedule a big 199 * hammer to get out of the RISC PAUSED state. 200 */ 201 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 202 RD_REG_WORD(®->hccr); 203 204 ha->isp_ops->fw_dump(vha, 1); 205 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 206 break; 207 } else if ((stat & HSR_RISC_INT) == 0) 208 break; 209 210 switch (stat & 0xff) { 211 case 0x1: 212 case 0x2: 213 case 0x10: 214 case 0x11: 215 qla2x00_mbx_completion(vha, MSW(stat)); 216 status |= MBX_INTERRUPT; 217 218 /* Release mailbox registers. */ 219 WRT_REG_WORD(®->semaphore, 0); 220 break; 221 case 0x12: 222 mb[0] = MSW(stat); 223 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 224 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 225 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 226 qla2x00_async_event(vha, rsp, mb); 227 break; 228 case 0x13: 229 qla2x00_process_response_queue(rsp); 230 break; 231 case 0x15: 232 mb[0] = MBA_CMPLT_1_16BIT; 233 mb[1] = MSW(stat); 234 qla2x00_async_event(vha, rsp, mb); 235 break; 236 case 0x16: 237 mb[0] = MBA_SCSI_COMPLETION; 238 mb[1] = MSW(stat); 239 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 240 qla2x00_async_event(vha, rsp, mb); 241 break; 242 default: 243 ql_dbg(ql_dbg_async, vha, 0x5028, 244 "Unrecognized interrupt type (%d).\n", stat & 0xff); 245 break; 246 } 247 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 248 RD_REG_WORD_RELAXED(®->hccr); 249 } 250 qla2x00_handle_mbx_completion(ha, status); 251 spin_unlock_irqrestore(&ha->hardware_lock, flags); 252 253 return (IRQ_HANDLED); 254 } 255 256 /** 257 * qla2x00_mbx_completion() - Process mailbox command completions. 258 * @ha: SCSI driver HA context 259 * @mb0: Mailbox0 register 260 */ 261 static void 262 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 263 { 264 uint16_t cnt; 265 uint32_t mboxes; 266 uint16_t __iomem *wptr; 267 struct qla_hw_data *ha = vha->hw; 268 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 269 270 /* Read all mbox registers? */ 271 mboxes = (1 << ha->mbx_count) - 1; 272 if (!ha->mcp) 273 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n"); 274 else 275 mboxes = ha->mcp->in_mb; 276 277 /* Load return mailbox registers. */ 278 ha->flags.mbox_int = 1; 279 ha->mailbox_out[0] = mb0; 280 mboxes >>= 1; 281 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 282 283 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 284 if (IS_QLA2200(ha) && cnt == 8) 285 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 286 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0)) 287 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 288 else if (mboxes & BIT_0) 289 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 290 291 wptr++; 292 mboxes >>= 1; 293 } 294 } 295 296 static void 297 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) 298 { 299 static char *event[] = 300 { "Complete", "Request Notification", "Time Extension" }; 301 int rval; 302 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24; 303 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82; 304 uint16_t __iomem *wptr; 305 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; 306 307 /* Seed data -- mailbox1 -> mailbox7. */ 308 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw)) 309 wptr = (uint16_t __iomem *)®24->mailbox1; 310 else if (IS_QLA8044(vha->hw)) 311 wptr = (uint16_t __iomem *)®82->mailbox_out[1]; 312 else 313 return; 314 315 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) 316 mb[cnt] = RD_REG_WORD(wptr); 317 318 ql_dbg(ql_dbg_async, vha, 0x5021, 319 "Inter-Driver Communication %s -- " 320 "%04x %04x %04x %04x %04x %04x %04x.\n", 321 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3], 322 mb[4], mb[5], mb[6]); 323 switch (aen) { 324 /* Handle IDC Error completion case. */ 325 case MBA_IDC_COMPLETE: 326 if (mb[1] >> 15) { 327 vha->hw->flags.idc_compl_status = 1; 328 if (vha->hw->notify_dcbx_comp && !vha->vp_idx) 329 complete(&vha->hw->dcbx_comp); 330 } 331 break; 332 333 case MBA_IDC_NOTIFY: 334 /* Acknowledgement needed? [Notify && non-zero timeout]. */ 335 timeout = (descr >> 8) & 0xf; 336 ql_dbg(ql_dbg_async, vha, 0x5022, 337 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n", 338 vha->host_no, event[aen & 0xff], timeout); 339 340 if (!timeout) 341 return; 342 rval = qla2x00_post_idc_ack_work(vha, mb); 343 if (rval != QLA_SUCCESS) 344 ql_log(ql_log_warn, vha, 0x5023, 345 "IDC failed to post ACK.\n"); 346 break; 347 case MBA_IDC_TIME_EXT: 348 vha->hw->idc_extend_tmo = descr; 349 ql_dbg(ql_dbg_async, vha, 0x5087, 350 "%lu Inter-Driver Communication %s -- " 351 "Extend timeout by=%d.\n", 352 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo); 353 break; 354 } 355 } 356 357 #define LS_UNKNOWN 2 358 const char * 359 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed) 360 { 361 static const char *const link_speeds[] = { 362 "1", "2", "?", "4", "8", "16", "32", "10" 363 }; 364 #define QLA_LAST_SPEED 7 365 366 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 367 return link_speeds[0]; 368 else if (speed == 0x13) 369 return link_speeds[QLA_LAST_SPEED]; 370 else if (speed < QLA_LAST_SPEED) 371 return link_speeds[speed]; 372 else 373 return link_speeds[LS_UNKNOWN]; 374 } 375 376 static void 377 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb) 378 { 379 struct qla_hw_data *ha = vha->hw; 380 381 /* 382 * 8200 AEN Interpretation: 383 * mb[0] = AEN code 384 * mb[1] = AEN Reason code 385 * mb[2] = LSW of Peg-Halt Status-1 Register 386 * mb[6] = MSW of Peg-Halt Status-1 Register 387 * mb[3] = LSW of Peg-Halt Status-2 register 388 * mb[7] = MSW of Peg-Halt Status-2 register 389 * mb[4] = IDC Device-State Register value 390 * mb[5] = IDC Driver-Presence Register value 391 */ 392 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: " 393 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n", 394 mb[0], mb[1], mb[2], mb[6]); 395 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x " 396 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x " 397 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]); 398 399 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE | 400 IDC_HEARTBEAT_FAILURE)) { 401 ha->flags.nic_core_hung = 1; 402 ql_log(ql_log_warn, vha, 0x5060, 403 "83XX: F/W Error Reported: Check if reset required.\n"); 404 405 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) { 406 uint32_t protocol_engine_id, fw_err_code, err_level; 407 408 /* 409 * IDC_PEG_HALT_STATUS_CHANGE interpretation: 410 * - PEG-Halt Status-1 Register: 411 * (LSW = mb[2], MSW = mb[6]) 412 * Bits 0-7 = protocol-engine ID 413 * Bits 8-28 = f/w error code 414 * Bits 29-31 = Error-level 415 * Error-level 0x1 = Non-Fatal error 416 * Error-level 0x2 = Recoverable Fatal error 417 * Error-level 0x4 = UnRecoverable Fatal error 418 * - PEG-Halt Status-2 Register: 419 * (LSW = mb[3], MSW = mb[7]) 420 */ 421 protocol_engine_id = (mb[2] & 0xff); 422 fw_err_code = (((mb[2] & 0xff00) >> 8) | 423 ((mb[6] & 0x1fff) << 8)); 424 err_level = ((mb[6] & 0xe000) >> 13); 425 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 " 426 "Register: protocol_engine_id=0x%x " 427 "fw_err_code=0x%x err_level=0x%x.\n", 428 protocol_engine_id, fw_err_code, err_level); 429 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 " 430 "Register: 0x%x%x.\n", mb[7], mb[3]); 431 if (err_level == ERR_LEVEL_NON_FATAL) { 432 ql_log(ql_log_warn, vha, 0x5063, 433 "Not a fatal error, f/w has recovered " 434 "iteself.\n"); 435 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) { 436 ql_log(ql_log_fatal, vha, 0x5064, 437 "Recoverable Fatal error: Chip reset " 438 "required.\n"); 439 qla83xx_schedule_work(vha, 440 QLA83XX_NIC_CORE_RESET); 441 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) { 442 ql_log(ql_log_fatal, vha, 0x5065, 443 "Unrecoverable Fatal error: Set FAILED " 444 "state, reboot required.\n"); 445 qla83xx_schedule_work(vha, 446 QLA83XX_NIC_CORE_UNRECOVERABLE); 447 } 448 } 449 450 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) { 451 uint16_t peg_fw_state, nw_interface_link_up; 452 uint16_t nw_interface_signal_detect, sfp_status; 453 uint16_t htbt_counter, htbt_monitor_enable; 454 uint16_t sfp_additonal_info, sfp_multirate; 455 uint16_t sfp_tx_fault, link_speed, dcbx_status; 456 457 /* 458 * IDC_NIC_FW_REPORTED_FAILURE interpretation: 459 * - PEG-to-FC Status Register: 460 * (LSW = mb[2], MSW = mb[6]) 461 * Bits 0-7 = Peg-Firmware state 462 * Bit 8 = N/W Interface Link-up 463 * Bit 9 = N/W Interface signal detected 464 * Bits 10-11 = SFP Status 465 * SFP Status 0x0 = SFP+ transceiver not expected 466 * SFP Status 0x1 = SFP+ transceiver not present 467 * SFP Status 0x2 = SFP+ transceiver invalid 468 * SFP Status 0x3 = SFP+ transceiver present and 469 * valid 470 * Bits 12-14 = Heartbeat Counter 471 * Bit 15 = Heartbeat Monitor Enable 472 * Bits 16-17 = SFP Additional Info 473 * SFP info 0x0 = Unregocnized transceiver for 474 * Ethernet 475 * SFP info 0x1 = SFP+ brand validation failed 476 * SFP info 0x2 = SFP+ speed validation failed 477 * SFP info 0x3 = SFP+ access error 478 * Bit 18 = SFP Multirate 479 * Bit 19 = SFP Tx Fault 480 * Bits 20-22 = Link Speed 481 * Bits 23-27 = Reserved 482 * Bits 28-30 = DCBX Status 483 * DCBX Status 0x0 = DCBX Disabled 484 * DCBX Status 0x1 = DCBX Enabled 485 * DCBX Status 0x2 = DCBX Exchange error 486 * Bit 31 = Reserved 487 */ 488 peg_fw_state = (mb[2] & 0x00ff); 489 nw_interface_link_up = ((mb[2] & 0x0100) >> 8); 490 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9); 491 sfp_status = ((mb[2] & 0x0c00) >> 10); 492 htbt_counter = ((mb[2] & 0x7000) >> 12); 493 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15); 494 sfp_additonal_info = (mb[6] & 0x0003); 495 sfp_multirate = ((mb[6] & 0x0004) >> 2); 496 sfp_tx_fault = ((mb[6] & 0x0008) >> 3); 497 link_speed = ((mb[6] & 0x0070) >> 4); 498 dcbx_status = ((mb[6] & 0x7000) >> 12); 499 500 ql_log(ql_log_warn, vha, 0x5066, 501 "Peg-to-Fc Status Register:\n" 502 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, " 503 "nw_interface_signal_detect=0x%x" 504 "\nsfp_statis=0x%x.\n ", peg_fw_state, 505 nw_interface_link_up, nw_interface_signal_detect, 506 sfp_status); 507 ql_log(ql_log_warn, vha, 0x5067, 508 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, " 509 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ", 510 htbt_counter, htbt_monitor_enable, 511 sfp_additonal_info, sfp_multirate); 512 ql_log(ql_log_warn, vha, 0x5068, 513 "sfp_tx_fault=0x%x, link_state=0x%x, " 514 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed, 515 dcbx_status); 516 517 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 518 } 519 520 if (mb[1] & IDC_HEARTBEAT_FAILURE) { 521 ql_log(ql_log_warn, vha, 0x5069, 522 "Heartbeat Failure encountered, chip reset " 523 "required.\n"); 524 525 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 526 } 527 } 528 529 if (mb[1] & IDC_DEVICE_STATE_CHANGE) { 530 ql_log(ql_log_info, vha, 0x506a, 531 "IDC Device-State changed = 0x%x.\n", mb[4]); 532 if (ha->flags.nic_core_reset_owner) 533 return; 534 qla83xx_schedule_work(vha, MBA_IDC_AEN); 535 } 536 } 537 538 int 539 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry) 540 { 541 struct qla_hw_data *ha = vha->hw; 542 scsi_qla_host_t *vp; 543 uint32_t vp_did; 544 unsigned long flags; 545 int ret = 0; 546 547 if (!ha->num_vhosts) 548 return ret; 549 550 spin_lock_irqsave(&ha->vport_slock, flags); 551 list_for_each_entry(vp, &ha->vp_list, list) { 552 vp_did = vp->d_id.b24; 553 if (vp_did == rscn_entry) { 554 ret = 1; 555 break; 556 } 557 } 558 spin_unlock_irqrestore(&ha->vport_slock, flags); 559 560 return ret; 561 } 562 563 static inline fc_port_t * 564 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id) 565 { 566 fc_port_t *fcport; 567 568 list_for_each_entry(fcport, &vha->vp_fcports, list) 569 if (fcport->loop_id == loop_id) 570 return fcport; 571 return NULL; 572 } 573 574 /** 575 * qla2x00_async_event() - Process aynchronous events. 576 * @ha: SCSI driver HA context 577 * @mb: Mailbox registers (0 - 3) 578 */ 579 void 580 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) 581 { 582 uint16_t handle_cnt; 583 uint16_t cnt, mbx; 584 uint32_t handles[5]; 585 struct qla_hw_data *ha = vha->hw; 586 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 587 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; 588 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; 589 uint32_t rscn_entry, host_pid; 590 unsigned long flags; 591 fc_port_t *fcport = NULL; 592 593 /* Setup to process RIO completion. */ 594 handle_cnt = 0; 595 if (IS_CNA_CAPABLE(ha)) 596 goto skip_rio; 597 switch (mb[0]) { 598 case MBA_SCSI_COMPLETION: 599 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 600 handle_cnt = 1; 601 break; 602 case MBA_CMPLT_1_16BIT: 603 handles[0] = mb[1]; 604 handle_cnt = 1; 605 mb[0] = MBA_SCSI_COMPLETION; 606 break; 607 case MBA_CMPLT_2_16BIT: 608 handles[0] = mb[1]; 609 handles[1] = mb[2]; 610 handle_cnt = 2; 611 mb[0] = MBA_SCSI_COMPLETION; 612 break; 613 case MBA_CMPLT_3_16BIT: 614 handles[0] = mb[1]; 615 handles[1] = mb[2]; 616 handles[2] = mb[3]; 617 handle_cnt = 3; 618 mb[0] = MBA_SCSI_COMPLETION; 619 break; 620 case MBA_CMPLT_4_16BIT: 621 handles[0] = mb[1]; 622 handles[1] = mb[2]; 623 handles[2] = mb[3]; 624 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 625 handle_cnt = 4; 626 mb[0] = MBA_SCSI_COMPLETION; 627 break; 628 case MBA_CMPLT_5_16BIT: 629 handles[0] = mb[1]; 630 handles[1] = mb[2]; 631 handles[2] = mb[3]; 632 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 633 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 634 handle_cnt = 5; 635 mb[0] = MBA_SCSI_COMPLETION; 636 break; 637 case MBA_CMPLT_2_32BIT: 638 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 639 handles[1] = le32_to_cpu( 640 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 641 RD_MAILBOX_REG(ha, reg, 6)); 642 handle_cnt = 2; 643 mb[0] = MBA_SCSI_COMPLETION; 644 break; 645 default: 646 break; 647 } 648 skip_rio: 649 switch (mb[0]) { 650 case MBA_SCSI_COMPLETION: /* Fast Post */ 651 if (!vha->flags.online) 652 break; 653 654 for (cnt = 0; cnt < handle_cnt; cnt++) 655 qla2x00_process_completed_request(vha, rsp->req, 656 handles[cnt]); 657 break; 658 659 case MBA_RESET: /* Reset */ 660 ql_dbg(ql_dbg_async, vha, 0x5002, 661 "Asynchronous RESET.\n"); 662 663 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 664 break; 665 666 case MBA_SYSTEM_ERR: /* System Error */ 667 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ? 668 RD_REG_WORD(®24->mailbox7) : 0; 669 ql_log(ql_log_warn, vha, 0x5003, 670 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh " 671 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); 672 673 ha->isp_ops->fw_dump(vha, 1); 674 675 if (IS_FWI2_CAPABLE(ha)) { 676 if (mb[1] == 0 && mb[2] == 0) { 677 ql_log(ql_log_fatal, vha, 0x5004, 678 "Unrecoverable Hardware Error: adapter " 679 "marked OFFLINE!\n"); 680 vha->flags.online = 0; 681 vha->device_flags |= DFLG_DEV_FAILED; 682 } else { 683 /* Check to see if MPI timeout occurred */ 684 if ((mbx & MBX_3) && (ha->port_no == 0)) 685 set_bit(MPI_RESET_NEEDED, 686 &vha->dpc_flags); 687 688 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 689 } 690 } else if (mb[1] == 0) { 691 ql_log(ql_log_fatal, vha, 0x5005, 692 "Unrecoverable Hardware Error: adapter marked " 693 "OFFLINE!\n"); 694 vha->flags.online = 0; 695 vha->device_flags |= DFLG_DEV_FAILED; 696 } else 697 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 698 break; 699 700 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 701 ql_log(ql_log_warn, vha, 0x5006, 702 "ISP Request Transfer Error (%x).\n", mb[1]); 703 704 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 705 break; 706 707 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 708 ql_log(ql_log_warn, vha, 0x5007, 709 "ISP Response Transfer Error.\n"); 710 711 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 712 break; 713 714 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 715 ql_dbg(ql_dbg_async, vha, 0x5008, 716 "Asynchronous WAKEUP_THRES.\n"); 717 718 break; 719 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 720 ql_dbg(ql_dbg_async, vha, 0x5009, 721 "LIP occurred (%x).\n", mb[1]); 722 723 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 724 atomic_set(&vha->loop_state, LOOP_DOWN); 725 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 726 qla2x00_mark_all_devices_lost(vha, 1); 727 } 728 729 if (vha->vp_idx) { 730 atomic_set(&vha->vp_state, VP_FAILED); 731 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 732 } 733 734 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 735 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 736 737 vha->flags.management_server_logged_in = 0; 738 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 739 break; 740 741 case MBA_LOOP_UP: /* Loop Up Event */ 742 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 743 ha->link_data_rate = PORT_SPEED_1GB; 744 else 745 ha->link_data_rate = mb[1]; 746 747 ql_log(ql_log_info, vha, 0x500a, 748 "LOOP UP detected (%s Gbps).\n", 749 qla2x00_get_link_speed_str(ha, ha->link_data_rate)); 750 751 vha->flags.management_server_logged_in = 0; 752 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 753 break; 754 755 case MBA_LOOP_DOWN: /* Loop Down Event */ 756 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha)) 757 ? RD_REG_WORD(®24->mailbox4) : 0; 758 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4]) 759 : mbx; 760 ql_log(ql_log_info, vha, 0x500b, 761 "LOOP DOWN detected (%x %x %x %x).\n", 762 mb[1], mb[2], mb[3], mbx); 763 764 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 765 atomic_set(&vha->loop_state, LOOP_DOWN); 766 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 767 /* 768 * In case of loop down, restore WWPN from 769 * NVRAM in case of FA-WWPN capable ISP 770 * Restore for Physical Port only 771 */ 772 if (!vha->vp_idx) { 773 if (ha->flags.fawwpn_enabled) { 774 void *wwpn = ha->init_cb->port_name; 775 memcpy(vha->port_name, wwpn, WWN_SIZE); 776 fc_host_port_name(vha->host) = 777 wwn_to_u64(vha->port_name); 778 ql_dbg(ql_dbg_init + ql_dbg_verbose, 779 vha, 0x0144, "LOOP DOWN detected," 780 "restore WWPN %016llx\n", 781 wwn_to_u64(vha->port_name)); 782 } 783 784 clear_bit(VP_CONFIG_OK, &vha->vp_flags); 785 } 786 787 vha->device_flags |= DFLG_NO_CABLE; 788 qla2x00_mark_all_devices_lost(vha, 1); 789 } 790 791 if (vha->vp_idx) { 792 atomic_set(&vha->vp_state, VP_FAILED); 793 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 794 } 795 796 vha->flags.management_server_logged_in = 0; 797 ha->link_data_rate = PORT_SPEED_UNKNOWN; 798 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 799 break; 800 801 case MBA_LIP_RESET: /* LIP reset occurred */ 802 ql_dbg(ql_dbg_async, vha, 0x500c, 803 "LIP reset occurred (%x).\n", mb[1]); 804 805 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 806 atomic_set(&vha->loop_state, LOOP_DOWN); 807 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 808 qla2x00_mark_all_devices_lost(vha, 1); 809 } 810 811 if (vha->vp_idx) { 812 atomic_set(&vha->vp_state, VP_FAILED); 813 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 814 } 815 816 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 817 818 ha->operating_mode = LOOP; 819 vha->flags.management_server_logged_in = 0; 820 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 821 break; 822 823 /* case MBA_DCBX_COMPLETE: */ 824 case MBA_POINT_TO_POINT: /* Point-to-Point */ 825 if (IS_QLA2100(ha)) 826 break; 827 828 if (IS_CNA_CAPABLE(ha)) { 829 ql_dbg(ql_dbg_async, vha, 0x500d, 830 "DCBX Completed -- %04x %04x %04x.\n", 831 mb[1], mb[2], mb[3]); 832 if (ha->notify_dcbx_comp && !vha->vp_idx) 833 complete(&ha->dcbx_comp); 834 835 } else 836 ql_dbg(ql_dbg_async, vha, 0x500e, 837 "Asynchronous P2P MODE received.\n"); 838 839 /* 840 * Until there's a transition from loop down to loop up, treat 841 * this as loop down only. 842 */ 843 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 844 atomic_set(&vha->loop_state, LOOP_DOWN); 845 if (!atomic_read(&vha->loop_down_timer)) 846 atomic_set(&vha->loop_down_timer, 847 LOOP_DOWN_TIME); 848 qla2x00_mark_all_devices_lost(vha, 1); 849 } 850 851 if (vha->vp_idx) { 852 atomic_set(&vha->vp_state, VP_FAILED); 853 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 854 } 855 856 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 857 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 858 859 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 860 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 861 862 ha->flags.gpsc_supported = 1; 863 vha->flags.management_server_logged_in = 0; 864 break; 865 866 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 867 if (IS_QLA2100(ha)) 868 break; 869 870 ql_dbg(ql_dbg_async, vha, 0x500f, 871 "Configuration change detected: value=%x.\n", mb[1]); 872 873 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 874 atomic_set(&vha->loop_state, LOOP_DOWN); 875 if (!atomic_read(&vha->loop_down_timer)) 876 atomic_set(&vha->loop_down_timer, 877 LOOP_DOWN_TIME); 878 qla2x00_mark_all_devices_lost(vha, 1); 879 } 880 881 if (vha->vp_idx) { 882 atomic_set(&vha->vp_state, VP_FAILED); 883 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 884 } 885 886 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 887 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 888 break; 889 890 case MBA_PORT_UPDATE: /* Port database update */ 891 /* 892 * Handle only global and vn-port update events 893 * 894 * Relevant inputs: 895 * mb[1] = N_Port handle of changed port 896 * OR 0xffff for global event 897 * mb[2] = New login state 898 * 7 = Port logged out 899 * mb[3] = LSB is vp_idx, 0xff = all vps 900 * 901 * Skip processing if: 902 * Event is global, vp_idx is NOT all vps, 903 * vp_idx does not match 904 * Event is not global, vp_idx does not match 905 */ 906 if (IS_QLA2XXX_MIDTYPE(ha) && 907 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 908 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 909 break; 910 911 if (mb[2] == 0x7) { 912 ql_dbg(ql_dbg_async, vha, 0x5010, 913 "Port %s %04x %04x %04x.\n", 914 mb[1] == 0xffff ? "unavailable" : "logout", 915 mb[1], mb[2], mb[3]); 916 917 if (mb[1] == 0xffff) 918 goto global_port_update; 919 920 /* Port logout */ 921 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]); 922 if (!fcport) 923 break; 924 if (atomic_read(&fcport->state) != FCS_ONLINE) 925 break; 926 ql_dbg(ql_dbg_async, vha, 0x508a, 927 "Marking port lost loopid=%04x portid=%06x.\n", 928 fcport->loop_id, fcport->d_id.b24); 929 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 930 break; 931 932 global_port_update: 933 /* Port unavailable. */ 934 ql_log(ql_log_warn, vha, 0x505e, 935 "Link is offline.\n"); 936 937 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 938 atomic_set(&vha->loop_state, LOOP_DOWN); 939 atomic_set(&vha->loop_down_timer, 940 LOOP_DOWN_TIME); 941 vha->device_flags |= DFLG_NO_CABLE; 942 qla2x00_mark_all_devices_lost(vha, 1); 943 } 944 945 if (vha->vp_idx) { 946 atomic_set(&vha->vp_state, VP_FAILED); 947 fc_vport_set_state(vha->fc_vport, 948 FC_VPORT_FAILED); 949 qla2x00_mark_all_devices_lost(vha, 1); 950 } 951 952 vha->flags.management_server_logged_in = 0; 953 ha->link_data_rate = PORT_SPEED_UNKNOWN; 954 break; 955 } 956 957 /* 958 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 959 * event etc. earlier indicating loop is down) then process 960 * it. Otherwise ignore it and Wait for RSCN to come in. 961 */ 962 atomic_set(&vha->loop_down_timer, 0); 963 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 964 atomic_read(&vha->loop_state) != LOOP_DEAD) { 965 ql_dbg(ql_dbg_async, vha, 0x5011, 966 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n", 967 mb[1], mb[2], mb[3]); 968 969 qlt_async_event(mb[0], vha, mb); 970 break; 971 } 972 973 ql_dbg(ql_dbg_async, vha, 0x5012, 974 "Port database changed %04x %04x %04x.\n", 975 mb[1], mb[2], mb[3]); 976 977 /* 978 * Mark all devices as missing so we will login again. 979 */ 980 atomic_set(&vha->loop_state, LOOP_UP); 981 982 qla2x00_mark_all_devices_lost(vha, 1); 983 984 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha)) 985 set_bit(SCR_PENDING, &vha->dpc_flags); 986 987 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 988 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 989 set_bit(VP_CONFIG_OK, &vha->vp_flags); 990 991 qlt_async_event(mb[0], vha, mb); 992 break; 993 994 case MBA_RSCN_UPDATE: /* State Change Registration */ 995 /* Check if the Vport has issued a SCR */ 996 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 997 break; 998 /* Only handle SCNs for our Vport index. */ 999 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 1000 break; 1001 1002 ql_dbg(ql_dbg_async, vha, 0x5013, 1003 "RSCN database changed -- %04x %04x %04x.\n", 1004 mb[1], mb[2], mb[3]); 1005 1006 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 1007 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 1008 | vha->d_id.b.al_pa; 1009 if (rscn_entry == host_pid) { 1010 ql_dbg(ql_dbg_async, vha, 0x5014, 1011 "Ignoring RSCN update to local host " 1012 "port ID (%06x).\n", host_pid); 1013 break; 1014 } 1015 1016 /* Ignore reserved bits from RSCN-payload. */ 1017 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 1018 1019 /* Skip RSCNs for virtual ports on the same physical port */ 1020 if (qla2x00_is_a_vp_did(vha, rscn_entry)) 1021 break; 1022 1023 /* 1024 * Search for the rport related to this RSCN entry and mark it 1025 * as lost. 1026 */ 1027 list_for_each_entry(fcport, &vha->vp_fcports, list) { 1028 if (atomic_read(&fcport->state) != FCS_ONLINE) 1029 continue; 1030 if (fcport->d_id.b24 == rscn_entry) { 1031 qla2x00_mark_device_lost(vha, fcport, 0, 0); 1032 break; 1033 } 1034 } 1035 1036 atomic_set(&vha->loop_down_timer, 0); 1037 vha->flags.management_server_logged_in = 0; 1038 1039 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 1040 set_bit(RSCN_UPDATE, &vha->dpc_flags); 1041 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 1042 break; 1043 1044 /* case MBA_RIO_RESPONSE: */ 1045 case MBA_ZIO_RESPONSE: 1046 ql_dbg(ql_dbg_async, vha, 0x5015, 1047 "[R|Z]IO update completion.\n"); 1048 1049 if (IS_FWI2_CAPABLE(ha)) 1050 qla24xx_process_response_queue(vha, rsp); 1051 else 1052 qla2x00_process_response_queue(rsp); 1053 break; 1054 1055 case MBA_DISCARD_RND_FRAME: 1056 ql_dbg(ql_dbg_async, vha, 0x5016, 1057 "Discard RND Frame -- %04x %04x %04x.\n", 1058 mb[1], mb[2], mb[3]); 1059 break; 1060 1061 case MBA_TRACE_NOTIFICATION: 1062 ql_dbg(ql_dbg_async, vha, 0x5017, 1063 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]); 1064 break; 1065 1066 case MBA_ISP84XX_ALERT: 1067 ql_dbg(ql_dbg_async, vha, 0x5018, 1068 "ISP84XX Alert Notification -- %04x %04x %04x.\n", 1069 mb[1], mb[2], mb[3]); 1070 1071 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 1072 switch (mb[1]) { 1073 case A84_PANIC_RECOVERY: 1074 ql_log(ql_log_info, vha, 0x5019, 1075 "Alert 84XX: panic recovery %04x %04x.\n", 1076 mb[2], mb[3]); 1077 break; 1078 case A84_OP_LOGIN_COMPLETE: 1079 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 1080 ql_log(ql_log_info, vha, 0x501a, 1081 "Alert 84XX: firmware version %x.\n", 1082 ha->cs84xx->op_fw_version); 1083 break; 1084 case A84_DIAG_LOGIN_COMPLETE: 1085 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1086 ql_log(ql_log_info, vha, 0x501b, 1087 "Alert 84XX: diagnostic firmware version %x.\n", 1088 ha->cs84xx->diag_fw_version); 1089 break; 1090 case A84_GOLD_LOGIN_COMPLETE: 1091 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1092 ha->cs84xx->fw_update = 1; 1093 ql_log(ql_log_info, vha, 0x501c, 1094 "Alert 84XX: gold firmware version %x.\n", 1095 ha->cs84xx->gold_fw_version); 1096 break; 1097 default: 1098 ql_log(ql_log_warn, vha, 0x501d, 1099 "Alert 84xx: Invalid Alert %04x %04x %04x.\n", 1100 mb[1], mb[2], mb[3]); 1101 } 1102 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 1103 break; 1104 case MBA_DCBX_START: 1105 ql_dbg(ql_dbg_async, vha, 0x501e, 1106 "DCBX Started -- %04x %04x %04x.\n", 1107 mb[1], mb[2], mb[3]); 1108 break; 1109 case MBA_DCBX_PARAM_UPDATE: 1110 ql_dbg(ql_dbg_async, vha, 0x501f, 1111 "DCBX Parameters Updated -- %04x %04x %04x.\n", 1112 mb[1], mb[2], mb[3]); 1113 break; 1114 case MBA_FCF_CONF_ERR: 1115 ql_dbg(ql_dbg_async, vha, 0x5020, 1116 "FCF Configuration Error -- %04x %04x %04x.\n", 1117 mb[1], mb[2], mb[3]); 1118 break; 1119 case MBA_IDC_NOTIFY: 1120 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) { 1121 mb[4] = RD_REG_WORD(®24->mailbox4); 1122 if (((mb[2] & 0x7fff) == MBC_PORT_RESET || 1123 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) && 1124 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) { 1125 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 1126 /* 1127 * Extend loop down timer since port is active. 1128 */ 1129 if (atomic_read(&vha->loop_state) == LOOP_DOWN) 1130 atomic_set(&vha->loop_down_timer, 1131 LOOP_DOWN_TIME); 1132 qla2xxx_wake_dpc(vha); 1133 } 1134 } 1135 case MBA_IDC_COMPLETE: 1136 if (ha->notify_lb_portup_comp && !vha->vp_idx) 1137 complete(&ha->lb_portup_comp); 1138 /* Fallthru */ 1139 case MBA_IDC_TIME_EXT: 1140 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || 1141 IS_QLA8044(ha)) 1142 qla81xx_idc_event(vha, mb[0], mb[1]); 1143 break; 1144 1145 case MBA_IDC_AEN: 1146 mb[4] = RD_REG_WORD(®24->mailbox4); 1147 mb[5] = RD_REG_WORD(®24->mailbox5); 1148 mb[6] = RD_REG_WORD(®24->mailbox6); 1149 mb[7] = RD_REG_WORD(®24->mailbox7); 1150 qla83xx_handle_8200_aen(vha, mb); 1151 break; 1152 1153 case MBA_DPORT_DIAGNOSTICS: 1154 ql_dbg(ql_dbg_async, vha, 0x5052, 1155 "D-Port Diagnostics: %04x %04x=%s\n", mb[0], mb[1], 1156 mb[1] == 0 ? "start" : 1157 mb[1] == 1 ? "done (ok)" : 1158 mb[1] == 2 ? "done (error)" : "other"); 1159 break; 1160 1161 default: 1162 ql_dbg(ql_dbg_async, vha, 0x5057, 1163 "Unknown AEN:%04x %04x %04x %04x\n", 1164 mb[0], mb[1], mb[2], mb[3]); 1165 } 1166 1167 qlt_async_event(mb[0], vha, mb); 1168 1169 if (!vha->vp_idx && ha->num_vhosts) 1170 qla2x00_alert_all_vps(rsp, mb); 1171 } 1172 1173 /** 1174 * qla2x00_process_completed_request() - Process a Fast Post response. 1175 * @ha: SCSI driver HA context 1176 * @index: SRB index 1177 */ 1178 void 1179 qla2x00_process_completed_request(struct scsi_qla_host *vha, 1180 struct req_que *req, uint32_t index) 1181 { 1182 srb_t *sp; 1183 struct qla_hw_data *ha = vha->hw; 1184 1185 /* Validate handle. */ 1186 if (index >= req->num_outstanding_cmds) { 1187 ql_log(ql_log_warn, vha, 0x3014, 1188 "Invalid SCSI command index (%x).\n", index); 1189 1190 if (IS_P3P_TYPE(ha)) 1191 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1192 else 1193 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1194 return; 1195 } 1196 1197 sp = req->outstanding_cmds[index]; 1198 if (sp) { 1199 /* Free outstanding command slot. */ 1200 req->outstanding_cmds[index] = NULL; 1201 1202 /* Save ISP completion status */ 1203 sp->done(ha, sp, DID_OK << 16); 1204 } else { 1205 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n"); 1206 1207 if (IS_P3P_TYPE(ha)) 1208 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1209 else 1210 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1211 } 1212 } 1213 1214 srb_t * 1215 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 1216 struct req_que *req, void *iocb) 1217 { 1218 struct qla_hw_data *ha = vha->hw; 1219 sts_entry_t *pkt = iocb; 1220 srb_t *sp = NULL; 1221 uint16_t index; 1222 1223 index = LSW(pkt->handle); 1224 if (index >= req->num_outstanding_cmds) { 1225 ql_log(ql_log_warn, vha, 0x5031, 1226 "Invalid command index (%x).\n", index); 1227 if (IS_P3P_TYPE(ha)) 1228 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1229 else 1230 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1231 goto done; 1232 } 1233 sp = req->outstanding_cmds[index]; 1234 if (!sp) { 1235 ql_log(ql_log_warn, vha, 0x5032, 1236 "Invalid completion handle (%x) -- timed-out.\n", index); 1237 return sp; 1238 } 1239 if (sp->handle != index) { 1240 ql_log(ql_log_warn, vha, 0x5033, 1241 "SRB handle (%x) mismatch %x.\n", sp->handle, index); 1242 return NULL; 1243 } 1244 1245 req->outstanding_cmds[index] = NULL; 1246 1247 done: 1248 return sp; 1249 } 1250 1251 static void 1252 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 1253 struct mbx_entry *mbx) 1254 { 1255 const char func[] = "MBX-IOCB"; 1256 const char *type; 1257 fc_port_t *fcport; 1258 srb_t *sp; 1259 struct srb_iocb *lio; 1260 uint16_t *data; 1261 uint16_t status; 1262 1263 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 1264 if (!sp) 1265 return; 1266 1267 lio = &sp->u.iocb_cmd; 1268 type = sp->name; 1269 fcport = sp->fcport; 1270 data = lio->u.logio.data; 1271 1272 data[0] = MBS_COMMAND_ERROR; 1273 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1274 QLA_LOGIO_LOGIN_RETRIED : 0; 1275 if (mbx->entry_status) { 1276 ql_dbg(ql_dbg_async, vha, 0x5043, 1277 "Async-%s error entry - hdl=%x portid=%02x%02x%02x " 1278 "entry-status=%x status=%x state-flag=%x " 1279 "status-flags=%x.\n", type, sp->handle, 1280 fcport->d_id.b.domain, fcport->d_id.b.area, 1281 fcport->d_id.b.al_pa, mbx->entry_status, 1282 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 1283 le16_to_cpu(mbx->status_flags)); 1284 1285 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029, 1286 (uint8_t *)mbx, sizeof(*mbx)); 1287 1288 goto logio_done; 1289 } 1290 1291 status = le16_to_cpu(mbx->status); 1292 if (status == 0x30 && sp->type == SRB_LOGIN_CMD && 1293 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 1294 status = 0; 1295 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 1296 ql_dbg(ql_dbg_async, vha, 0x5045, 1297 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n", 1298 type, sp->handle, fcport->d_id.b.domain, 1299 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1300 le16_to_cpu(mbx->mb1)); 1301 1302 data[0] = MBS_COMMAND_COMPLETE; 1303 if (sp->type == SRB_LOGIN_CMD) { 1304 fcport->port_type = FCT_TARGET; 1305 if (le16_to_cpu(mbx->mb1) & BIT_0) 1306 fcport->port_type = FCT_INITIATOR; 1307 else if (le16_to_cpu(mbx->mb1) & BIT_1) 1308 fcport->flags |= FCF_FCP2_DEVICE; 1309 } 1310 goto logio_done; 1311 } 1312 1313 data[0] = le16_to_cpu(mbx->mb0); 1314 switch (data[0]) { 1315 case MBS_PORT_ID_USED: 1316 data[1] = le16_to_cpu(mbx->mb1); 1317 break; 1318 case MBS_LOOP_ID_USED: 1319 break; 1320 default: 1321 data[0] = MBS_COMMAND_ERROR; 1322 break; 1323 } 1324 1325 ql_log(ql_log_warn, vha, 0x5046, 1326 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x " 1327 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle, 1328 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, 1329 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 1330 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 1331 le16_to_cpu(mbx->mb7)); 1332 1333 logio_done: 1334 sp->done(vha, sp, 0); 1335 } 1336 1337 static void 1338 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1339 sts_entry_t *pkt, int iocb_type) 1340 { 1341 const char func[] = "CT_IOCB"; 1342 const char *type; 1343 srb_t *sp; 1344 struct fc_bsg_job *bsg_job; 1345 uint16_t comp_status; 1346 int res; 1347 1348 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1349 if (!sp) 1350 return; 1351 1352 bsg_job = sp->u.bsg_job; 1353 1354 type = "ct pass-through"; 1355 1356 comp_status = le16_to_cpu(pkt->comp_status); 1357 1358 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1359 * fc payload to the caller 1360 */ 1361 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1362 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1363 1364 if (comp_status != CS_COMPLETE) { 1365 if (comp_status == CS_DATA_UNDERRUN) { 1366 res = DID_OK << 16; 1367 bsg_job->reply->reply_payload_rcv_len = 1368 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1369 1370 ql_log(ql_log_warn, vha, 0x5048, 1371 "CT pass-through-%s error " 1372 "comp_status-status=0x%x total_byte = 0x%x.\n", 1373 type, comp_status, 1374 bsg_job->reply->reply_payload_rcv_len); 1375 } else { 1376 ql_log(ql_log_warn, vha, 0x5049, 1377 "CT pass-through-%s error " 1378 "comp_status-status=0x%x.\n", type, comp_status); 1379 res = DID_ERROR << 16; 1380 bsg_job->reply->reply_payload_rcv_len = 0; 1381 } 1382 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035, 1383 (uint8_t *)pkt, sizeof(*pkt)); 1384 } else { 1385 res = DID_OK << 16; 1386 bsg_job->reply->reply_payload_rcv_len = 1387 bsg_job->reply_payload.payload_len; 1388 bsg_job->reply_len = 0; 1389 } 1390 1391 sp->done(vha, sp, res); 1392 } 1393 1394 static void 1395 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1396 struct sts_entry_24xx *pkt, int iocb_type) 1397 { 1398 const char func[] = "ELS_CT_IOCB"; 1399 const char *type; 1400 srb_t *sp; 1401 struct fc_bsg_job *bsg_job; 1402 uint16_t comp_status; 1403 uint32_t fw_status[3]; 1404 uint8_t* fw_sts_ptr; 1405 int res; 1406 1407 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1408 if (!sp) 1409 return; 1410 bsg_job = sp->u.bsg_job; 1411 1412 type = NULL; 1413 switch (sp->type) { 1414 case SRB_ELS_CMD_RPT: 1415 case SRB_ELS_CMD_HST: 1416 type = "els"; 1417 break; 1418 case SRB_CT_CMD: 1419 type = "ct pass-through"; 1420 break; 1421 default: 1422 ql_dbg(ql_dbg_user, vha, 0x503e, 1423 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type); 1424 return; 1425 } 1426 1427 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1428 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1429 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1430 1431 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1432 * fc payload to the caller 1433 */ 1434 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1435 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1436 1437 if (comp_status != CS_COMPLETE) { 1438 if (comp_status == CS_DATA_UNDERRUN) { 1439 res = DID_OK << 16; 1440 bsg_job->reply->reply_payload_rcv_len = 1441 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count); 1442 1443 ql_dbg(ql_dbg_user, vha, 0x503f, 1444 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1445 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1446 type, sp->handle, comp_status, fw_status[1], fw_status[2], 1447 le16_to_cpu(((struct els_sts_entry_24xx *) 1448 pkt)->total_byte_count)); 1449 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1450 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1451 } 1452 else { 1453 ql_dbg(ql_dbg_user, vha, 0x5040, 1454 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1455 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1456 type, sp->handle, comp_status, 1457 le16_to_cpu(((struct els_sts_entry_24xx *) 1458 pkt)->error_subcode_1), 1459 le16_to_cpu(((struct els_sts_entry_24xx *) 1460 pkt)->error_subcode_2)); 1461 res = DID_ERROR << 16; 1462 bsg_job->reply->reply_payload_rcv_len = 0; 1463 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1464 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1465 } 1466 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056, 1467 (uint8_t *)pkt, sizeof(*pkt)); 1468 } 1469 else { 1470 res = DID_OK << 16; 1471 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1472 bsg_job->reply_len = 0; 1473 } 1474 1475 sp->done(vha, sp, res); 1476 } 1477 1478 static void 1479 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1480 struct logio_entry_24xx *logio) 1481 { 1482 const char func[] = "LOGIO-IOCB"; 1483 const char *type; 1484 fc_port_t *fcport; 1485 srb_t *sp; 1486 struct srb_iocb *lio; 1487 uint16_t *data; 1488 uint32_t iop[2]; 1489 1490 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1491 if (!sp) 1492 return; 1493 1494 lio = &sp->u.iocb_cmd; 1495 type = sp->name; 1496 fcport = sp->fcport; 1497 data = lio->u.logio.data; 1498 1499 data[0] = MBS_COMMAND_ERROR; 1500 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1501 QLA_LOGIO_LOGIN_RETRIED : 0; 1502 if (logio->entry_status) { 1503 ql_log(ql_log_warn, fcport->vha, 0x5034, 1504 "Async-%s error entry - hdl=%x" 1505 "portid=%02x%02x%02x entry-status=%x.\n", 1506 type, sp->handle, fcport->d_id.b.domain, 1507 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1508 logio->entry_status); 1509 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d, 1510 (uint8_t *)logio, sizeof(*logio)); 1511 1512 goto logio_done; 1513 } 1514 1515 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1516 ql_dbg(ql_dbg_async, fcport->vha, 0x5036, 1517 "Async-%s complete - hdl=%x portid=%02x%02x%02x " 1518 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1519 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1520 le32_to_cpu(logio->io_parameter[0])); 1521 1522 data[0] = MBS_COMMAND_COMPLETE; 1523 if (sp->type != SRB_LOGIN_CMD) 1524 goto logio_done; 1525 1526 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1527 if (iop[0] & BIT_4) { 1528 fcport->port_type = FCT_TARGET; 1529 if (iop[0] & BIT_8) 1530 fcport->flags |= FCF_FCP2_DEVICE; 1531 } else if (iop[0] & BIT_5) 1532 fcport->port_type = FCT_INITIATOR; 1533 1534 if (iop[0] & BIT_7) 1535 fcport->flags |= FCF_CONF_COMP_SUPPORTED; 1536 1537 if (logio->io_parameter[7] || logio->io_parameter[8]) 1538 fcport->supported_classes |= FC_COS_CLASS2; 1539 if (logio->io_parameter[9] || logio->io_parameter[10]) 1540 fcport->supported_classes |= FC_COS_CLASS3; 1541 1542 goto logio_done; 1543 } 1544 1545 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1546 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1547 switch (iop[0]) { 1548 case LSC_SCODE_PORTID_USED: 1549 data[0] = MBS_PORT_ID_USED; 1550 data[1] = LSW(iop[1]); 1551 break; 1552 case LSC_SCODE_NPORT_USED: 1553 data[0] = MBS_LOOP_ID_USED; 1554 break; 1555 default: 1556 data[0] = MBS_COMMAND_ERROR; 1557 break; 1558 } 1559 1560 ql_dbg(ql_dbg_async, fcport->vha, 0x5037, 1561 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x " 1562 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1563 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1564 le16_to_cpu(logio->comp_status), 1565 le32_to_cpu(logio->io_parameter[0]), 1566 le32_to_cpu(logio->io_parameter[1])); 1567 1568 logio_done: 1569 sp->done(vha, sp, 0); 1570 } 1571 1572 static void 1573 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk) 1574 { 1575 const char func[] = "TMF-IOCB"; 1576 const char *type; 1577 fc_port_t *fcport; 1578 srb_t *sp; 1579 struct srb_iocb *iocb; 1580 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; 1581 1582 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); 1583 if (!sp) 1584 return; 1585 1586 iocb = &sp->u.iocb_cmd; 1587 type = sp->name; 1588 fcport = sp->fcport; 1589 iocb->u.tmf.data = QLA_SUCCESS; 1590 1591 if (sts->entry_status) { 1592 ql_log(ql_log_warn, fcport->vha, 0x5038, 1593 "Async-%s error - hdl=%x entry-status(%x).\n", 1594 type, sp->handle, sts->entry_status); 1595 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1596 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) { 1597 ql_log(ql_log_warn, fcport->vha, 0x5039, 1598 "Async-%s error - hdl=%x completion status(%x).\n", 1599 type, sp->handle, sts->comp_status); 1600 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1601 } else if ((le16_to_cpu(sts->scsi_status) & 1602 SS_RESPONSE_INFO_LEN_VALID)) { 1603 if (le32_to_cpu(sts->rsp_data_len) < 4) { 1604 ql_log(ql_log_warn, fcport->vha, 0x503b, 1605 "Async-%s error - hdl=%x not enough response(%d).\n", 1606 type, sp->handle, sts->rsp_data_len); 1607 } else if (sts->data[3]) { 1608 ql_log(ql_log_warn, fcport->vha, 0x503c, 1609 "Async-%s error - hdl=%x response(%x).\n", 1610 type, sp->handle, sts->data[3]); 1611 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1612 } 1613 } 1614 1615 if (iocb->u.tmf.data != QLA_SUCCESS) 1616 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055, 1617 (uint8_t *)sts, sizeof(*sts)); 1618 1619 sp->done(vha, sp, 0); 1620 } 1621 1622 /** 1623 * qla2x00_process_response_queue() - Process response queue entries. 1624 * @ha: SCSI driver HA context 1625 */ 1626 void 1627 qla2x00_process_response_queue(struct rsp_que *rsp) 1628 { 1629 struct scsi_qla_host *vha; 1630 struct qla_hw_data *ha = rsp->hw; 1631 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1632 sts_entry_t *pkt; 1633 uint16_t handle_cnt; 1634 uint16_t cnt; 1635 1636 vha = pci_get_drvdata(ha->pdev); 1637 1638 if (!vha->flags.online) 1639 return; 1640 1641 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1642 pkt = (sts_entry_t *)rsp->ring_ptr; 1643 1644 rsp->ring_index++; 1645 if (rsp->ring_index == rsp->length) { 1646 rsp->ring_index = 0; 1647 rsp->ring_ptr = rsp->ring; 1648 } else { 1649 rsp->ring_ptr++; 1650 } 1651 1652 if (pkt->entry_status != 0) { 1653 qla2x00_error_entry(vha, rsp, pkt); 1654 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1655 wmb(); 1656 continue; 1657 } 1658 1659 switch (pkt->entry_type) { 1660 case STATUS_TYPE: 1661 qla2x00_status_entry(vha, rsp, pkt); 1662 break; 1663 case STATUS_TYPE_21: 1664 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 1665 for (cnt = 0; cnt < handle_cnt; cnt++) { 1666 qla2x00_process_completed_request(vha, rsp->req, 1667 ((sts21_entry_t *)pkt)->handle[cnt]); 1668 } 1669 break; 1670 case STATUS_TYPE_22: 1671 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 1672 for (cnt = 0; cnt < handle_cnt; cnt++) { 1673 qla2x00_process_completed_request(vha, rsp->req, 1674 ((sts22_entry_t *)pkt)->handle[cnt]); 1675 } 1676 break; 1677 case STATUS_CONT_TYPE: 1678 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1679 break; 1680 case MBX_IOCB_TYPE: 1681 qla2x00_mbx_iocb_entry(vha, rsp->req, 1682 (struct mbx_entry *)pkt); 1683 break; 1684 case CT_IOCB_TYPE: 1685 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 1686 break; 1687 default: 1688 /* Type Not Supported. */ 1689 ql_log(ql_log_warn, vha, 0x504a, 1690 "Received unknown response pkt type %x " 1691 "entry status=%x.\n", 1692 pkt->entry_type, pkt->entry_status); 1693 break; 1694 } 1695 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1696 wmb(); 1697 } 1698 1699 /* Adjust ring index */ 1700 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); 1701 } 1702 1703 static inline void 1704 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len, 1705 uint32_t sense_len, struct rsp_que *rsp, int res) 1706 { 1707 struct scsi_qla_host *vha = sp->fcport->vha; 1708 struct scsi_cmnd *cp = GET_CMD_SP(sp); 1709 uint32_t track_sense_len; 1710 1711 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 1712 sense_len = SCSI_SENSE_BUFFERSIZE; 1713 1714 SET_CMD_SENSE_LEN(sp, sense_len); 1715 SET_CMD_SENSE_PTR(sp, cp->sense_buffer); 1716 track_sense_len = sense_len; 1717 1718 if (sense_len > par_sense_len) 1719 sense_len = par_sense_len; 1720 1721 memcpy(cp->sense_buffer, sense_data, sense_len); 1722 1723 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len); 1724 track_sense_len -= sense_len; 1725 SET_CMD_SENSE_LEN(sp, track_sense_len); 1726 1727 if (track_sense_len != 0) { 1728 rsp->status_srb = sp; 1729 cp->result = res; 1730 } 1731 1732 if (sense_len) { 1733 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c, 1734 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n", 1735 sp->fcport->vha->host_no, cp->device->id, cp->device->lun, 1736 cp); 1737 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b, 1738 cp->sense_buffer, sense_len); 1739 } 1740 } 1741 1742 struct scsi_dif_tuple { 1743 __be16 guard; /* Checksum */ 1744 __be16 app_tag; /* APPL identifier */ 1745 __be32 ref_tag; /* Target LBA or indirect LBA */ 1746 }; 1747 1748 /* 1749 * Checks the guard or meta-data for the type of error 1750 * detected by the HBA. In case of errors, we set the 1751 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1752 * to indicate to the kernel that the HBA detected error. 1753 */ 1754 static inline int 1755 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1756 { 1757 struct scsi_qla_host *vha = sp->fcport->vha; 1758 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1759 uint8_t *ap = &sts24->data[12]; 1760 uint8_t *ep = &sts24->data[20]; 1761 uint32_t e_ref_tag, a_ref_tag; 1762 uint16_t e_app_tag, a_app_tag; 1763 uint16_t e_guard, a_guard; 1764 1765 /* 1766 * swab32 of the "data" field in the beginning of qla2x00_status_entry() 1767 * would make guard field appear at offset 2 1768 */ 1769 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2)); 1770 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0)); 1771 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4)); 1772 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2)); 1773 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0)); 1774 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4)); 1775 1776 ql_dbg(ql_dbg_io, vha, 0x3023, 1777 "iocb(s) %p Returned STATUS.\n", sts24); 1778 1779 ql_dbg(ql_dbg_io, vha, 0x3024, 1780 "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1781 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1782 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n", 1783 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1784 a_app_tag, e_app_tag, a_guard, e_guard); 1785 1786 /* 1787 * Ignore sector if: 1788 * For type 3: ref & app tag is all 'f's 1789 * For type 0,1,2: app tag is all 'f's 1790 */ 1791 if ((a_app_tag == 0xffff) && 1792 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) || 1793 (a_ref_tag == 0xffffffff))) { 1794 uint32_t blocks_done, resid; 1795 sector_t lba_s = scsi_get_lba(cmd); 1796 1797 /* 2TB boundary case covered automatically with this */ 1798 blocks_done = e_ref_tag - (uint32_t)lba_s + 1; 1799 1800 resid = scsi_bufflen(cmd) - (blocks_done * 1801 cmd->device->sector_size); 1802 1803 scsi_set_resid(cmd, resid); 1804 cmd->result = DID_OK << 16; 1805 1806 /* Update protection tag */ 1807 if (scsi_prot_sg_count(cmd)) { 1808 uint32_t i, j = 0, k = 0, num_ent; 1809 struct scatterlist *sg; 1810 struct sd_dif_tuple *spt; 1811 1812 /* Patch the corresponding protection tags */ 1813 scsi_for_each_prot_sg(cmd, sg, 1814 scsi_prot_sg_count(cmd), i) { 1815 num_ent = sg_dma_len(sg) / 8; 1816 if (k + num_ent < blocks_done) { 1817 k += num_ent; 1818 continue; 1819 } 1820 j = blocks_done - k - 1; 1821 k = blocks_done; 1822 break; 1823 } 1824 1825 if (k != blocks_done) { 1826 ql_log(ql_log_warn, vha, 0x302f, 1827 "unexpected tag values tag:lba=%x:%llx)\n", 1828 e_ref_tag, (unsigned long long)lba_s); 1829 return 1; 1830 } 1831 1832 spt = page_address(sg_page(sg)) + sg->offset; 1833 spt += j; 1834 1835 spt->app_tag = 0xffff; 1836 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3) 1837 spt->ref_tag = 0xffffffff; 1838 } 1839 1840 return 0; 1841 } 1842 1843 /* check guard */ 1844 if (e_guard != a_guard) { 1845 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1846 0x10, 0x1); 1847 set_driver_byte(cmd, DRIVER_SENSE); 1848 set_host_byte(cmd, DID_ABORT); 1849 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1850 return 1; 1851 } 1852 1853 /* check ref tag */ 1854 if (e_ref_tag != a_ref_tag) { 1855 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1856 0x10, 0x3); 1857 set_driver_byte(cmd, DRIVER_SENSE); 1858 set_host_byte(cmd, DID_ABORT); 1859 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1860 return 1; 1861 } 1862 1863 /* check appl tag */ 1864 if (e_app_tag != a_app_tag) { 1865 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1866 0x10, 0x2); 1867 set_driver_byte(cmd, DRIVER_SENSE); 1868 set_host_byte(cmd, DID_ABORT); 1869 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1870 return 1; 1871 } 1872 1873 return 1; 1874 } 1875 1876 static void 1877 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt, 1878 struct req_que *req, uint32_t index) 1879 { 1880 struct qla_hw_data *ha = vha->hw; 1881 srb_t *sp; 1882 uint16_t comp_status; 1883 uint16_t scsi_status; 1884 uint16_t thread_id; 1885 uint32_t rval = EXT_STATUS_OK; 1886 struct fc_bsg_job *bsg_job = NULL; 1887 sts_entry_t *sts; 1888 struct sts_entry_24xx *sts24; 1889 sts = (sts_entry_t *) pkt; 1890 sts24 = (struct sts_entry_24xx *) pkt; 1891 1892 /* Validate handle. */ 1893 if (index >= req->num_outstanding_cmds) { 1894 ql_log(ql_log_warn, vha, 0x70af, 1895 "Invalid SCSI completion handle 0x%x.\n", index); 1896 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1897 return; 1898 } 1899 1900 sp = req->outstanding_cmds[index]; 1901 if (sp) { 1902 /* Free outstanding command slot. */ 1903 req->outstanding_cmds[index] = NULL; 1904 bsg_job = sp->u.bsg_job; 1905 } else { 1906 ql_log(ql_log_warn, vha, 0x70b0, 1907 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n", 1908 req->id, index); 1909 1910 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1911 return; 1912 } 1913 1914 if (IS_FWI2_CAPABLE(ha)) { 1915 comp_status = le16_to_cpu(sts24->comp_status); 1916 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1917 } else { 1918 comp_status = le16_to_cpu(sts->comp_status); 1919 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1920 } 1921 1922 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1]; 1923 switch (comp_status) { 1924 case CS_COMPLETE: 1925 if (scsi_status == 0) { 1926 bsg_job->reply->reply_payload_rcv_len = 1927 bsg_job->reply_payload.payload_len; 1928 vha->qla_stats.input_bytes += 1929 bsg_job->reply->reply_payload_rcv_len; 1930 vha->qla_stats.input_requests++; 1931 rval = EXT_STATUS_OK; 1932 } 1933 goto done; 1934 1935 case CS_DATA_OVERRUN: 1936 ql_dbg(ql_dbg_user, vha, 0x70b1, 1937 "Command completed with date overrun thread_id=%d\n", 1938 thread_id); 1939 rval = EXT_STATUS_DATA_OVERRUN; 1940 break; 1941 1942 case CS_DATA_UNDERRUN: 1943 ql_dbg(ql_dbg_user, vha, 0x70b2, 1944 "Command completed with date underrun thread_id=%d\n", 1945 thread_id); 1946 rval = EXT_STATUS_DATA_UNDERRUN; 1947 break; 1948 case CS_BIDIR_RD_OVERRUN: 1949 ql_dbg(ql_dbg_user, vha, 0x70b3, 1950 "Command completed with read data overrun thread_id=%d\n", 1951 thread_id); 1952 rval = EXT_STATUS_DATA_OVERRUN; 1953 break; 1954 1955 case CS_BIDIR_RD_WR_OVERRUN: 1956 ql_dbg(ql_dbg_user, vha, 0x70b4, 1957 "Command completed with read and write data overrun " 1958 "thread_id=%d\n", thread_id); 1959 rval = EXT_STATUS_DATA_OVERRUN; 1960 break; 1961 1962 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN: 1963 ql_dbg(ql_dbg_user, vha, 0x70b5, 1964 "Command completed with read data over and write data " 1965 "underrun thread_id=%d\n", thread_id); 1966 rval = EXT_STATUS_DATA_OVERRUN; 1967 break; 1968 1969 case CS_BIDIR_RD_UNDERRUN: 1970 ql_dbg(ql_dbg_user, vha, 0x70b6, 1971 "Command completed with read data data underrun " 1972 "thread_id=%d\n", thread_id); 1973 rval = EXT_STATUS_DATA_UNDERRUN; 1974 break; 1975 1976 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN: 1977 ql_dbg(ql_dbg_user, vha, 0x70b7, 1978 "Command completed with read data under and write data " 1979 "overrun thread_id=%d\n", thread_id); 1980 rval = EXT_STATUS_DATA_UNDERRUN; 1981 break; 1982 1983 case CS_BIDIR_RD_WR_UNDERRUN: 1984 ql_dbg(ql_dbg_user, vha, 0x70b8, 1985 "Command completed with read and write data underrun " 1986 "thread_id=%d\n", thread_id); 1987 rval = EXT_STATUS_DATA_UNDERRUN; 1988 break; 1989 1990 case CS_BIDIR_DMA: 1991 ql_dbg(ql_dbg_user, vha, 0x70b9, 1992 "Command completed with data DMA error thread_id=%d\n", 1993 thread_id); 1994 rval = EXT_STATUS_DMA_ERR; 1995 break; 1996 1997 case CS_TIMEOUT: 1998 ql_dbg(ql_dbg_user, vha, 0x70ba, 1999 "Command completed with timeout thread_id=%d\n", 2000 thread_id); 2001 rval = EXT_STATUS_TIMEOUT; 2002 break; 2003 default: 2004 ql_dbg(ql_dbg_user, vha, 0x70bb, 2005 "Command completed with completion status=0x%x " 2006 "thread_id=%d\n", comp_status, thread_id); 2007 rval = EXT_STATUS_ERR; 2008 break; 2009 } 2010 bsg_job->reply->reply_payload_rcv_len = 0; 2011 2012 done: 2013 /* Return the vendor specific reply to API */ 2014 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval; 2015 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 2016 /* Always return DID_OK, bsg will send the vendor specific response 2017 * in this case only */ 2018 sp->done(vha, sp, (DID_OK << 6)); 2019 2020 } 2021 2022 /** 2023 * qla2x00_status_entry() - Process a Status IOCB entry. 2024 * @ha: SCSI driver HA context 2025 * @pkt: Entry pointer 2026 */ 2027 static void 2028 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 2029 { 2030 srb_t *sp; 2031 fc_port_t *fcport; 2032 struct scsi_cmnd *cp; 2033 sts_entry_t *sts; 2034 struct sts_entry_24xx *sts24; 2035 uint16_t comp_status; 2036 uint16_t scsi_status; 2037 uint16_t ox_id; 2038 uint8_t lscsi_status; 2039 int32_t resid; 2040 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 2041 fw_resid_len; 2042 uint8_t *rsp_info, *sense_data; 2043 struct qla_hw_data *ha = vha->hw; 2044 uint32_t handle; 2045 uint16_t que; 2046 struct req_que *req; 2047 int logit = 1; 2048 int res = 0; 2049 uint16_t state_flags = 0; 2050 uint16_t retry_delay = 0; 2051 2052 sts = (sts_entry_t *) pkt; 2053 sts24 = (struct sts_entry_24xx *) pkt; 2054 if (IS_FWI2_CAPABLE(ha)) { 2055 comp_status = le16_to_cpu(sts24->comp_status); 2056 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 2057 state_flags = le16_to_cpu(sts24->state_flags); 2058 } else { 2059 comp_status = le16_to_cpu(sts->comp_status); 2060 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 2061 } 2062 handle = (uint32_t) LSW(sts->handle); 2063 que = MSW(sts->handle); 2064 req = ha->req_q_map[que]; 2065 2066 /* Check for invalid queue pointer */ 2067 if (req == NULL || 2068 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) { 2069 ql_dbg(ql_dbg_io, vha, 0x3059, 2070 "Invalid status handle (0x%x): Bad req pointer. req=%p, " 2071 "que=%u.\n", sts->handle, req, que); 2072 return; 2073 } 2074 2075 /* Validate handle. */ 2076 if (handle < req->num_outstanding_cmds) { 2077 sp = req->outstanding_cmds[handle]; 2078 if (!sp) { 2079 ql_dbg(ql_dbg_io, vha, 0x3075, 2080 "%s(%ld): Already returned command for status handle (0x%x).\n", 2081 __func__, vha->host_no, sts->handle); 2082 return; 2083 } 2084 } else { 2085 ql_dbg(ql_dbg_io, vha, 0x3017, 2086 "Invalid status handle, out of range (0x%x).\n", 2087 sts->handle); 2088 2089 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 2090 if (IS_P3P_TYPE(ha)) 2091 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 2092 else 2093 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2094 qla2xxx_wake_dpc(vha); 2095 } 2096 return; 2097 } 2098 2099 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) { 2100 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle); 2101 return; 2102 } 2103 2104 /* Task Management completion. */ 2105 if (sp->type == SRB_TM_CMD) { 2106 qla24xx_tm_iocb_entry(vha, req, pkt); 2107 return; 2108 } 2109 2110 /* Fast path completion. */ 2111 if (comp_status == CS_COMPLETE && scsi_status == 0) { 2112 qla2x00_process_completed_request(vha, req, handle); 2113 2114 return; 2115 } 2116 2117 req->outstanding_cmds[handle] = NULL; 2118 cp = GET_CMD_SP(sp); 2119 if (cp == NULL) { 2120 ql_dbg(ql_dbg_io, vha, 0x3018, 2121 "Command already returned (0x%x/%p).\n", 2122 sts->handle, sp); 2123 2124 return; 2125 } 2126 2127 lscsi_status = scsi_status & STATUS_MASK; 2128 2129 fcport = sp->fcport; 2130 2131 ox_id = 0; 2132 sense_len = par_sense_len = rsp_info_len = resid_len = 2133 fw_resid_len = 0; 2134 if (IS_FWI2_CAPABLE(ha)) { 2135 if (scsi_status & SS_SENSE_LEN_VALID) 2136 sense_len = le32_to_cpu(sts24->sense_len); 2137 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2138 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 2139 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 2140 resid_len = le32_to_cpu(sts24->rsp_residual_count); 2141 if (comp_status == CS_DATA_UNDERRUN) 2142 fw_resid_len = le32_to_cpu(sts24->residual_len); 2143 rsp_info = sts24->data; 2144 sense_data = sts24->data; 2145 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 2146 ox_id = le16_to_cpu(sts24->ox_id); 2147 par_sense_len = sizeof(sts24->data); 2148 /* Valid values of the retry delay timer are 0x1-0xffef */ 2149 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) 2150 retry_delay = sts24->retry_delay; 2151 } else { 2152 if (scsi_status & SS_SENSE_LEN_VALID) 2153 sense_len = le16_to_cpu(sts->req_sense_length); 2154 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2155 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 2156 resid_len = le32_to_cpu(sts->residual_length); 2157 rsp_info = sts->rsp_info; 2158 sense_data = sts->req_sense_data; 2159 par_sense_len = sizeof(sts->req_sense_data); 2160 } 2161 2162 /* Check for any FCP transport errors. */ 2163 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 2164 /* Sense data lies beyond any FCP RESPONSE data. */ 2165 if (IS_FWI2_CAPABLE(ha)) { 2166 sense_data += rsp_info_len; 2167 par_sense_len -= rsp_info_len; 2168 } 2169 if (rsp_info_len > 3 && rsp_info[3]) { 2170 ql_dbg(ql_dbg_io, fcport->vha, 0x3019, 2171 "FCP I/O protocol failure (0x%x/0x%x).\n", 2172 rsp_info_len, rsp_info[3]); 2173 2174 res = DID_BUS_BUSY << 16; 2175 goto out; 2176 } 2177 } 2178 2179 /* Check for overrun. */ 2180 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 2181 scsi_status & SS_RESIDUAL_OVER) 2182 comp_status = CS_DATA_OVERRUN; 2183 2184 /* 2185 * Check retry_delay_timer value if we receive a busy or 2186 * queue full. 2187 */ 2188 if (lscsi_status == SAM_STAT_TASK_SET_FULL || 2189 lscsi_status == SAM_STAT_BUSY) 2190 qla2x00_set_retry_delay_timestamp(fcport, retry_delay); 2191 2192 /* 2193 * Based on Host and scsi status generate status code for Linux 2194 */ 2195 switch (comp_status) { 2196 case CS_COMPLETE: 2197 case CS_QUEUE_FULL: 2198 if (scsi_status == 0) { 2199 res = DID_OK << 16; 2200 break; 2201 } 2202 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 2203 resid = resid_len; 2204 scsi_set_resid(cp, resid); 2205 2206 if (!lscsi_status && 2207 ((unsigned)(scsi_bufflen(cp) - resid) < 2208 cp->underflow)) { 2209 ql_dbg(ql_dbg_io, fcport->vha, 0x301a, 2210 "Mid-layer underflow " 2211 "detected (0x%x of 0x%x bytes).\n", 2212 resid, scsi_bufflen(cp)); 2213 2214 res = DID_ERROR << 16; 2215 break; 2216 } 2217 } 2218 res = DID_OK << 16 | lscsi_status; 2219 2220 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2221 ql_dbg(ql_dbg_io, fcport->vha, 0x301b, 2222 "QUEUE FULL detected.\n"); 2223 break; 2224 } 2225 logit = 0; 2226 if (lscsi_status != SS_CHECK_CONDITION) 2227 break; 2228 2229 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2230 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2231 break; 2232 2233 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 2234 rsp, res); 2235 break; 2236 2237 case CS_DATA_UNDERRUN: 2238 /* Use F/W calculated residual length. */ 2239 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 2240 scsi_set_resid(cp, resid); 2241 if (scsi_status & SS_RESIDUAL_UNDER) { 2242 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 2243 ql_dbg(ql_dbg_io, fcport->vha, 0x301d, 2244 "Dropped frame(s) detected " 2245 "(0x%x of 0x%x bytes).\n", 2246 resid, scsi_bufflen(cp)); 2247 2248 res = DID_ERROR << 16 | lscsi_status; 2249 goto check_scsi_status; 2250 } 2251 2252 if (!lscsi_status && 2253 ((unsigned)(scsi_bufflen(cp) - resid) < 2254 cp->underflow)) { 2255 ql_dbg(ql_dbg_io, fcport->vha, 0x301e, 2256 "Mid-layer underflow " 2257 "detected (0x%x of 0x%x bytes).\n", 2258 resid, scsi_bufflen(cp)); 2259 2260 res = DID_ERROR << 16; 2261 break; 2262 } 2263 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL && 2264 lscsi_status != SAM_STAT_BUSY) { 2265 /* 2266 * scsi status of task set and busy are considered to be 2267 * task not completed. 2268 */ 2269 2270 ql_dbg(ql_dbg_io, fcport->vha, 0x301f, 2271 "Dropped frame(s) detected (0x%x " 2272 "of 0x%x bytes).\n", resid, 2273 scsi_bufflen(cp)); 2274 2275 res = DID_ERROR << 16 | lscsi_status; 2276 goto check_scsi_status; 2277 } else { 2278 ql_dbg(ql_dbg_io, fcport->vha, 0x3030, 2279 "scsi_status: 0x%x, lscsi_status: 0x%x\n", 2280 scsi_status, lscsi_status); 2281 } 2282 2283 res = DID_OK << 16 | lscsi_status; 2284 logit = 0; 2285 2286 check_scsi_status: 2287 /* 2288 * Check to see if SCSI Status is non zero. If so report SCSI 2289 * Status. 2290 */ 2291 if (lscsi_status != 0) { 2292 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2293 ql_dbg(ql_dbg_io, fcport->vha, 0x3020, 2294 "QUEUE FULL detected.\n"); 2295 logit = 1; 2296 break; 2297 } 2298 if (lscsi_status != SS_CHECK_CONDITION) 2299 break; 2300 2301 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2302 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2303 break; 2304 2305 qla2x00_handle_sense(sp, sense_data, par_sense_len, 2306 sense_len, rsp, res); 2307 } 2308 break; 2309 2310 case CS_PORT_LOGGED_OUT: 2311 case CS_PORT_CONFIG_CHG: 2312 case CS_PORT_BUSY: 2313 case CS_INCOMPLETE: 2314 case CS_PORT_UNAVAILABLE: 2315 case CS_TIMEOUT: 2316 case CS_RESET: 2317 2318 /* 2319 * We are going to have the fc class block the rport 2320 * while we try to recover so instruct the mid layer 2321 * to requeue until the class decides how to handle this. 2322 */ 2323 res = DID_TRANSPORT_DISRUPTED << 16; 2324 2325 if (comp_status == CS_TIMEOUT) { 2326 if (IS_FWI2_CAPABLE(ha)) 2327 break; 2328 else if ((le16_to_cpu(sts->status_flags) & 2329 SF_LOGOUT_SENT) == 0) 2330 break; 2331 } 2332 2333 ql_dbg(ql_dbg_io, fcport->vha, 0x3021, 2334 "Port to be marked lost on fcport=%02x%02x%02x, current " 2335 "port state= %s.\n", fcport->d_id.b.domain, 2336 fcport->d_id.b.area, fcport->d_id.b.al_pa, 2337 port_state_str[atomic_read(&fcport->state)]); 2338 2339 if (atomic_read(&fcport->state) == FCS_ONLINE) 2340 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 2341 break; 2342 2343 case CS_ABORTED: 2344 res = DID_RESET << 16; 2345 break; 2346 2347 case CS_DIF_ERROR: 2348 logit = qla2x00_handle_dif_error(sp, sts24); 2349 res = cp->result; 2350 break; 2351 2352 case CS_TRANSPORT: 2353 res = DID_ERROR << 16; 2354 2355 if (!IS_PI_SPLIT_DET_CAPABLE(ha)) 2356 break; 2357 2358 if (state_flags & BIT_4) 2359 scmd_printk(KERN_WARNING, cp, 2360 "Unsupported device '%s' found.\n", 2361 cp->device->vendor); 2362 break; 2363 2364 default: 2365 res = DID_ERROR << 16; 2366 break; 2367 } 2368 2369 out: 2370 if (logit) 2371 ql_dbg(ql_dbg_io, fcport->vha, 0x3022, 2372 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu " 2373 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x " 2374 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n", 2375 comp_status, scsi_status, res, vha->host_no, 2376 cp->device->id, cp->device->lun, fcport->d_id.b.domain, 2377 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id, 2378 cp->cmnd, scsi_bufflen(cp), rsp_info_len, 2379 resid_len, fw_resid_len, sp, cp); 2380 2381 if (rsp->status_srb == NULL) 2382 sp->done(ha, sp, res); 2383 } 2384 2385 /** 2386 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 2387 * @ha: SCSI driver HA context 2388 * @pkt: Entry pointer 2389 * 2390 * Extended sense data. 2391 */ 2392 static void 2393 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 2394 { 2395 uint8_t sense_sz = 0; 2396 struct qla_hw_data *ha = rsp->hw; 2397 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 2398 srb_t *sp = rsp->status_srb; 2399 struct scsi_cmnd *cp; 2400 uint32_t sense_len; 2401 uint8_t *sense_ptr; 2402 2403 if (!sp || !GET_CMD_SENSE_LEN(sp)) 2404 return; 2405 2406 sense_len = GET_CMD_SENSE_LEN(sp); 2407 sense_ptr = GET_CMD_SENSE_PTR(sp); 2408 2409 cp = GET_CMD_SP(sp); 2410 if (cp == NULL) { 2411 ql_log(ql_log_warn, vha, 0x3025, 2412 "cmd is NULL: already returned to OS (sp=%p).\n", sp); 2413 2414 rsp->status_srb = NULL; 2415 return; 2416 } 2417 2418 if (sense_len > sizeof(pkt->data)) 2419 sense_sz = sizeof(pkt->data); 2420 else 2421 sense_sz = sense_len; 2422 2423 /* Move sense data. */ 2424 if (IS_FWI2_CAPABLE(ha)) 2425 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 2426 memcpy(sense_ptr, pkt->data, sense_sz); 2427 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c, 2428 sense_ptr, sense_sz); 2429 2430 sense_len -= sense_sz; 2431 sense_ptr += sense_sz; 2432 2433 SET_CMD_SENSE_PTR(sp, sense_ptr); 2434 SET_CMD_SENSE_LEN(sp, sense_len); 2435 2436 /* Place command on done queue. */ 2437 if (sense_len == 0) { 2438 rsp->status_srb = NULL; 2439 sp->done(ha, sp, cp->result); 2440 } 2441 } 2442 2443 /** 2444 * qla2x00_error_entry() - Process an error entry. 2445 * @ha: SCSI driver HA context 2446 * @pkt: Entry pointer 2447 */ 2448 static void 2449 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 2450 { 2451 srb_t *sp; 2452 struct qla_hw_data *ha = vha->hw; 2453 const char func[] = "ERROR-IOCB"; 2454 uint16_t que = MSW(pkt->handle); 2455 struct req_que *req = NULL; 2456 int res = DID_ERROR << 16; 2457 2458 ql_dbg(ql_dbg_async, vha, 0x502a, 2459 "type of error status in response: 0x%x\n", pkt->entry_status); 2460 2461 if (que >= ha->max_req_queues || !ha->req_q_map[que]) 2462 goto fatal; 2463 2464 req = ha->req_q_map[que]; 2465 2466 if (pkt->entry_status & RF_BUSY) 2467 res = DID_BUS_BUSY << 16; 2468 2469 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2470 if (sp) { 2471 sp->done(ha, sp, res); 2472 return; 2473 } 2474 fatal: 2475 ql_log(ql_log_warn, vha, 0x5030, 2476 "Error entry - invalid handle/queue (%04x).\n", que); 2477 } 2478 2479 /** 2480 * qla24xx_mbx_completion() - Process mailbox command completions. 2481 * @ha: SCSI driver HA context 2482 * @mb0: Mailbox0 register 2483 */ 2484 static void 2485 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 2486 { 2487 uint16_t cnt; 2488 uint32_t mboxes; 2489 uint16_t __iomem *wptr; 2490 struct qla_hw_data *ha = vha->hw; 2491 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2492 2493 /* Read all mbox registers? */ 2494 mboxes = (1 << ha->mbx_count) - 1; 2495 if (!ha->mcp) 2496 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n"); 2497 else 2498 mboxes = ha->mcp->in_mb; 2499 2500 /* Load return mailbox registers. */ 2501 ha->flags.mbox_int = 1; 2502 ha->mailbox_out[0] = mb0; 2503 mboxes >>= 1; 2504 wptr = (uint16_t __iomem *)®->mailbox1; 2505 2506 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 2507 if (mboxes & BIT_0) 2508 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 2509 2510 mboxes >>= 1; 2511 wptr++; 2512 } 2513 } 2514 2515 static void 2516 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 2517 struct abort_entry_24xx *pkt) 2518 { 2519 const char func[] = "ABT_IOCB"; 2520 srb_t *sp; 2521 struct srb_iocb *abt; 2522 2523 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2524 if (!sp) 2525 return; 2526 2527 abt = &sp->u.iocb_cmd; 2528 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle); 2529 sp->done(vha, sp, 0); 2530 } 2531 2532 /** 2533 * qla24xx_process_response_queue() - Process response queue entries. 2534 * @ha: SCSI driver HA context 2535 */ 2536 void qla24xx_process_response_queue(struct scsi_qla_host *vha, 2537 struct rsp_que *rsp) 2538 { 2539 struct sts_entry_24xx *pkt; 2540 struct qla_hw_data *ha = vha->hw; 2541 2542 if (!vha->flags.online) 2543 return; 2544 2545 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 2546 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 2547 2548 rsp->ring_index++; 2549 if (rsp->ring_index == rsp->length) { 2550 rsp->ring_index = 0; 2551 rsp->ring_ptr = rsp->ring; 2552 } else { 2553 rsp->ring_ptr++; 2554 } 2555 2556 if (pkt->entry_status != 0) { 2557 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 2558 2559 if (qlt_24xx_process_response_error(vha, pkt)) 2560 goto process_err; 2561 2562 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2563 wmb(); 2564 continue; 2565 } 2566 process_err: 2567 2568 switch (pkt->entry_type) { 2569 case STATUS_TYPE: 2570 qla2x00_status_entry(vha, rsp, pkt); 2571 break; 2572 case STATUS_CONT_TYPE: 2573 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 2574 break; 2575 case VP_RPT_ID_IOCB_TYPE: 2576 qla24xx_report_id_acquisition(vha, 2577 (struct vp_rpt_id_entry_24xx *)pkt); 2578 break; 2579 case LOGINOUT_PORT_IOCB_TYPE: 2580 qla24xx_logio_entry(vha, rsp->req, 2581 (struct logio_entry_24xx *)pkt); 2582 break; 2583 case CT_IOCB_TYPE: 2584 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2585 break; 2586 case ELS_IOCB_TYPE: 2587 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2588 break; 2589 case ABTS_RECV_24XX: 2590 /* ensure that the ATIO queue is empty */ 2591 qlt_24xx_process_atio_queue(vha); 2592 case ABTS_RESP_24XX: 2593 case CTIO_TYPE7: 2594 case NOTIFY_ACK_TYPE: 2595 case CTIO_CRC2: 2596 qlt_response_pkt_all_vps(vha, (response_t *)pkt); 2597 break; 2598 case MARKER_TYPE: 2599 /* Do nothing in this case, this check is to prevent it 2600 * from falling into default case 2601 */ 2602 break; 2603 case ABORT_IOCB_TYPE: 2604 qla24xx_abort_iocb_entry(vha, rsp->req, 2605 (struct abort_entry_24xx *)pkt); 2606 break; 2607 default: 2608 /* Type Not Supported. */ 2609 ql_dbg(ql_dbg_async, vha, 0x5042, 2610 "Received unknown response pkt type %x " 2611 "entry status=%x.\n", 2612 pkt->entry_type, pkt->entry_status); 2613 break; 2614 } 2615 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2616 wmb(); 2617 } 2618 2619 /* Adjust ring index */ 2620 if (IS_P3P_TYPE(ha)) { 2621 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2622 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2623 } else 2624 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2625 } 2626 2627 static void 2628 qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2629 { 2630 int rval; 2631 uint32_t cnt; 2632 struct qla_hw_data *ha = vha->hw; 2633 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2634 2635 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) && 2636 !IS_QLA27XX(ha)) 2637 return; 2638 2639 rval = QLA_SUCCESS; 2640 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2641 RD_REG_DWORD(®->iobase_addr); 2642 WRT_REG_DWORD(®->iobase_window, 0x0001); 2643 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2644 rval == QLA_SUCCESS; cnt--) { 2645 if (cnt) { 2646 WRT_REG_DWORD(®->iobase_window, 0x0001); 2647 udelay(10); 2648 } else 2649 rval = QLA_FUNCTION_TIMEOUT; 2650 } 2651 if (rval == QLA_SUCCESS) 2652 goto next_test; 2653 2654 rval = QLA_SUCCESS; 2655 WRT_REG_DWORD(®->iobase_window, 0x0003); 2656 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2657 rval == QLA_SUCCESS; cnt--) { 2658 if (cnt) { 2659 WRT_REG_DWORD(®->iobase_window, 0x0003); 2660 udelay(10); 2661 } else 2662 rval = QLA_FUNCTION_TIMEOUT; 2663 } 2664 if (rval != QLA_SUCCESS) 2665 goto done; 2666 2667 next_test: 2668 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2669 ql_log(ql_log_info, vha, 0x504c, 2670 "Additional code -- 0x55AA.\n"); 2671 2672 done: 2673 WRT_REG_DWORD(®->iobase_window, 0x0000); 2674 RD_REG_DWORD(®->iobase_window); 2675 } 2676 2677 /** 2678 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx. 2679 * @irq: 2680 * @dev_id: SCSI driver HA context 2681 * 2682 * Called by system whenever the host adapter generates an interrupt. 2683 * 2684 * Returns handled flag. 2685 */ 2686 irqreturn_t 2687 qla24xx_intr_handler(int irq, void *dev_id) 2688 { 2689 scsi_qla_host_t *vha; 2690 struct qla_hw_data *ha; 2691 struct device_reg_24xx __iomem *reg; 2692 int status; 2693 unsigned long iter; 2694 uint32_t stat; 2695 uint32_t hccr; 2696 uint16_t mb[8]; 2697 struct rsp_que *rsp; 2698 unsigned long flags; 2699 2700 rsp = (struct rsp_que *) dev_id; 2701 if (!rsp) { 2702 ql_log(ql_log_info, NULL, 0x5059, 2703 "%s: NULL response queue pointer.\n", __func__); 2704 return IRQ_NONE; 2705 } 2706 2707 ha = rsp->hw; 2708 reg = &ha->iobase->isp24; 2709 status = 0; 2710 2711 if (unlikely(pci_channel_offline(ha->pdev))) 2712 return IRQ_HANDLED; 2713 2714 spin_lock_irqsave(&ha->hardware_lock, flags); 2715 vha = pci_get_drvdata(ha->pdev); 2716 for (iter = 50; iter--; ) { 2717 stat = RD_REG_DWORD(®->host_status); 2718 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2719 break; 2720 if (stat & HSRX_RISC_PAUSED) { 2721 if (unlikely(pci_channel_offline(ha->pdev))) 2722 break; 2723 2724 hccr = RD_REG_DWORD(®->hccr); 2725 2726 ql_log(ql_log_warn, vha, 0x504b, 2727 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2728 hccr); 2729 2730 qla2xxx_check_risc_status(vha); 2731 2732 ha->isp_ops->fw_dump(vha, 1); 2733 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2734 break; 2735 } else if ((stat & HSRX_RISC_INT) == 0) 2736 break; 2737 2738 switch (stat & 0xff) { 2739 case INTR_ROM_MB_SUCCESS: 2740 case INTR_ROM_MB_FAILED: 2741 case INTR_MB_SUCCESS: 2742 case INTR_MB_FAILED: 2743 qla24xx_mbx_completion(vha, MSW(stat)); 2744 status |= MBX_INTERRUPT; 2745 2746 break; 2747 case INTR_ASYNC_EVENT: 2748 mb[0] = MSW(stat); 2749 mb[1] = RD_REG_WORD(®->mailbox1); 2750 mb[2] = RD_REG_WORD(®->mailbox2); 2751 mb[3] = RD_REG_WORD(®->mailbox3); 2752 qla2x00_async_event(vha, rsp, mb); 2753 break; 2754 case INTR_RSP_QUE_UPDATE: 2755 case INTR_RSP_QUE_UPDATE_83XX: 2756 qla24xx_process_response_queue(vha, rsp); 2757 break; 2758 case INTR_ATIO_QUE_UPDATE: 2759 qlt_24xx_process_atio_queue(vha); 2760 break; 2761 case INTR_ATIO_RSP_QUE_UPDATE: 2762 qlt_24xx_process_atio_queue(vha); 2763 qla24xx_process_response_queue(vha, rsp); 2764 break; 2765 default: 2766 ql_dbg(ql_dbg_async, vha, 0x504f, 2767 "Unrecognized interrupt type (%d).\n", stat * 0xff); 2768 break; 2769 } 2770 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2771 RD_REG_DWORD_RELAXED(®->hccr); 2772 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1))) 2773 ndelay(3500); 2774 } 2775 qla2x00_handle_mbx_completion(ha, status); 2776 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2777 2778 return IRQ_HANDLED; 2779 } 2780 2781 static irqreturn_t 2782 qla24xx_msix_rsp_q(int irq, void *dev_id) 2783 { 2784 struct qla_hw_data *ha; 2785 struct rsp_que *rsp; 2786 struct device_reg_24xx __iomem *reg; 2787 struct scsi_qla_host *vha; 2788 unsigned long flags; 2789 uint32_t stat = 0; 2790 2791 rsp = (struct rsp_que *) dev_id; 2792 if (!rsp) { 2793 ql_log(ql_log_info, NULL, 0x505a, 2794 "%s: NULL response queue pointer.\n", __func__); 2795 return IRQ_NONE; 2796 } 2797 ha = rsp->hw; 2798 reg = &ha->iobase->isp24; 2799 2800 spin_lock_irqsave(&ha->hardware_lock, flags); 2801 2802 vha = pci_get_drvdata(ha->pdev); 2803 /* 2804 * Use host_status register to check to PCI disconnection before we 2805 * we process the response queue. 2806 */ 2807 stat = RD_REG_DWORD(®->host_status); 2808 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2809 goto out; 2810 qla24xx_process_response_queue(vha, rsp); 2811 if (!ha->flags.disable_msix_handshake) { 2812 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2813 RD_REG_DWORD_RELAXED(®->hccr); 2814 } 2815 out: 2816 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2817 2818 return IRQ_HANDLED; 2819 } 2820 2821 static irqreturn_t 2822 qla25xx_msix_rsp_q(int irq, void *dev_id) 2823 { 2824 struct qla_hw_data *ha; 2825 scsi_qla_host_t *vha; 2826 struct rsp_que *rsp; 2827 struct device_reg_24xx __iomem *reg; 2828 unsigned long flags; 2829 uint32_t hccr = 0; 2830 2831 rsp = (struct rsp_que *) dev_id; 2832 if (!rsp) { 2833 ql_log(ql_log_info, NULL, 0x505b, 2834 "%s: NULL response queue pointer.\n", __func__); 2835 return IRQ_NONE; 2836 } 2837 ha = rsp->hw; 2838 vha = pci_get_drvdata(ha->pdev); 2839 2840 /* Clear the interrupt, if enabled, for this response queue */ 2841 if (!ha->flags.disable_msix_handshake) { 2842 reg = &ha->iobase->isp24; 2843 spin_lock_irqsave(&ha->hardware_lock, flags); 2844 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2845 hccr = RD_REG_DWORD_RELAXED(®->hccr); 2846 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2847 } 2848 if (qla2x00_check_reg32_for_disconnect(vha, hccr)) 2849 goto out; 2850 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work); 2851 2852 out: 2853 return IRQ_HANDLED; 2854 } 2855 2856 static irqreturn_t 2857 qla24xx_msix_default(int irq, void *dev_id) 2858 { 2859 scsi_qla_host_t *vha; 2860 struct qla_hw_data *ha; 2861 struct rsp_que *rsp; 2862 struct device_reg_24xx __iomem *reg; 2863 int status; 2864 uint32_t stat; 2865 uint32_t hccr; 2866 uint16_t mb[8]; 2867 unsigned long flags; 2868 2869 rsp = (struct rsp_que *) dev_id; 2870 if (!rsp) { 2871 ql_log(ql_log_info, NULL, 0x505c, 2872 "%s: NULL response queue pointer.\n", __func__); 2873 return IRQ_NONE; 2874 } 2875 ha = rsp->hw; 2876 reg = &ha->iobase->isp24; 2877 status = 0; 2878 2879 spin_lock_irqsave(&ha->hardware_lock, flags); 2880 vha = pci_get_drvdata(ha->pdev); 2881 do { 2882 stat = RD_REG_DWORD(®->host_status); 2883 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2884 break; 2885 if (stat & HSRX_RISC_PAUSED) { 2886 if (unlikely(pci_channel_offline(ha->pdev))) 2887 break; 2888 2889 hccr = RD_REG_DWORD(®->hccr); 2890 2891 ql_log(ql_log_info, vha, 0x5050, 2892 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2893 hccr); 2894 2895 qla2xxx_check_risc_status(vha); 2896 2897 ha->isp_ops->fw_dump(vha, 1); 2898 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2899 break; 2900 } else if ((stat & HSRX_RISC_INT) == 0) 2901 break; 2902 2903 switch (stat & 0xff) { 2904 case INTR_ROM_MB_SUCCESS: 2905 case INTR_ROM_MB_FAILED: 2906 case INTR_MB_SUCCESS: 2907 case INTR_MB_FAILED: 2908 qla24xx_mbx_completion(vha, MSW(stat)); 2909 status |= MBX_INTERRUPT; 2910 2911 break; 2912 case INTR_ASYNC_EVENT: 2913 mb[0] = MSW(stat); 2914 mb[1] = RD_REG_WORD(®->mailbox1); 2915 mb[2] = RD_REG_WORD(®->mailbox2); 2916 mb[3] = RD_REG_WORD(®->mailbox3); 2917 qla2x00_async_event(vha, rsp, mb); 2918 break; 2919 case INTR_RSP_QUE_UPDATE: 2920 case INTR_RSP_QUE_UPDATE_83XX: 2921 qla24xx_process_response_queue(vha, rsp); 2922 break; 2923 case INTR_ATIO_QUE_UPDATE: 2924 qlt_24xx_process_atio_queue(vha); 2925 break; 2926 case INTR_ATIO_RSP_QUE_UPDATE: 2927 qlt_24xx_process_atio_queue(vha); 2928 qla24xx_process_response_queue(vha, rsp); 2929 break; 2930 default: 2931 ql_dbg(ql_dbg_async, vha, 0x5051, 2932 "Unrecognized interrupt type (%d).\n", stat & 0xff); 2933 break; 2934 } 2935 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2936 } while (0); 2937 qla2x00_handle_mbx_completion(ha, status); 2938 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2939 2940 return IRQ_HANDLED; 2941 } 2942 2943 /* Interrupt handling helpers. */ 2944 2945 struct qla_init_msix_entry { 2946 const char *name; 2947 irq_handler_t handler; 2948 }; 2949 2950 static struct qla_init_msix_entry msix_entries[3] = { 2951 { "qla2xxx (default)", qla24xx_msix_default }, 2952 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 2953 { "qla2xxx (multiq)", qla25xx_msix_rsp_q }, 2954 }; 2955 2956 static struct qla_init_msix_entry qla82xx_msix_entries[2] = { 2957 { "qla2xxx (default)", qla82xx_msix_default }, 2958 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 2959 }; 2960 2961 static struct qla_init_msix_entry qla83xx_msix_entries[3] = { 2962 { "qla2xxx (default)", qla24xx_msix_default }, 2963 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 2964 { "qla2xxx (atio_q)", qla83xx_msix_atio_q }, 2965 }; 2966 2967 static void 2968 qla24xx_disable_msix(struct qla_hw_data *ha) 2969 { 2970 int i; 2971 struct qla_msix_entry *qentry; 2972 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 2973 2974 for (i = 0; i < ha->msix_count; i++) { 2975 qentry = &ha->msix_entries[i]; 2976 if (qentry->have_irq) 2977 free_irq(qentry->vector, qentry->rsp); 2978 } 2979 pci_disable_msix(ha->pdev); 2980 kfree(ha->msix_entries); 2981 ha->msix_entries = NULL; 2982 ha->flags.msix_enabled = 0; 2983 ql_dbg(ql_dbg_init, vha, 0x0042, 2984 "Disabled the MSI.\n"); 2985 } 2986 2987 static int 2988 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 2989 { 2990 #define MIN_MSIX_COUNT 2 2991 #define ATIO_VECTOR 2 2992 int i, ret; 2993 struct msix_entry *entries; 2994 struct qla_msix_entry *qentry; 2995 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 2996 2997 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, 2998 GFP_KERNEL); 2999 if (!entries) { 3000 ql_log(ql_log_warn, vha, 0x00bc, 3001 "Failed to allocate memory for msix_entry.\n"); 3002 return -ENOMEM; 3003 } 3004 3005 for (i = 0; i < ha->msix_count; i++) 3006 entries[i].entry = i; 3007 3008 ret = pci_enable_msix_range(ha->pdev, 3009 entries, MIN_MSIX_COUNT, ha->msix_count); 3010 if (ret < 0) { 3011 ql_log(ql_log_fatal, vha, 0x00c7, 3012 "MSI-X: Failed to enable support, " 3013 "giving up -- %d/%d.\n", 3014 ha->msix_count, ret); 3015 goto msix_out; 3016 } else if (ret < ha->msix_count) { 3017 ql_log(ql_log_warn, vha, 0x00c6, 3018 "MSI-X: Failed to enable support " 3019 "-- %d/%d\n Retry with %d vectors.\n", 3020 ha->msix_count, ret, ret); 3021 } 3022 ha->msix_count = ret; 3023 ha->max_rsp_queues = ha->msix_count - 1; 3024 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 3025 ha->msix_count, GFP_KERNEL); 3026 if (!ha->msix_entries) { 3027 ql_log(ql_log_fatal, vha, 0x00c8, 3028 "Failed to allocate memory for ha->msix_entries.\n"); 3029 ret = -ENOMEM; 3030 goto msix_out; 3031 } 3032 ha->flags.msix_enabled = 1; 3033 3034 for (i = 0; i < ha->msix_count; i++) { 3035 qentry = &ha->msix_entries[i]; 3036 qentry->vector = entries[i].vector; 3037 qentry->entry = entries[i].entry; 3038 qentry->have_irq = 0; 3039 qentry->rsp = NULL; 3040 } 3041 3042 /* Enable MSI-X vectors for the base queue */ 3043 for (i = 0; i < 2; i++) { 3044 qentry = &ha->msix_entries[i]; 3045 if (IS_P3P_TYPE(ha)) 3046 ret = request_irq(qentry->vector, 3047 qla82xx_msix_entries[i].handler, 3048 0, qla82xx_msix_entries[i].name, rsp); 3049 else 3050 ret = request_irq(qentry->vector, 3051 msix_entries[i].handler, 3052 0, msix_entries[i].name, rsp); 3053 if (ret) 3054 goto msix_register_fail; 3055 qentry->have_irq = 1; 3056 qentry->rsp = rsp; 3057 rsp->msix = qentry; 3058 } 3059 3060 /* 3061 * If target mode is enable, also request the vector for the ATIO 3062 * queue. 3063 */ 3064 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) { 3065 qentry = &ha->msix_entries[ATIO_VECTOR]; 3066 ret = request_irq(qentry->vector, 3067 qla83xx_msix_entries[ATIO_VECTOR].handler, 3068 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp); 3069 qentry->have_irq = 1; 3070 qentry->rsp = rsp; 3071 rsp->msix = qentry; 3072 } 3073 3074 msix_register_fail: 3075 if (ret) { 3076 ql_log(ql_log_fatal, vha, 0x00cb, 3077 "MSI-X: unable to register handler -- %x/%d.\n", 3078 qentry->vector, ret); 3079 qla24xx_disable_msix(ha); 3080 ha->mqenable = 0; 3081 goto msix_out; 3082 } 3083 3084 /* Enable MSI-X vector for response queue update for queue 0 */ 3085 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 3086 if (ha->msixbase && ha->mqiobase && 3087 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 3088 ha->mqenable = 1; 3089 } else 3090 if (ha->mqiobase 3091 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 3092 ha->mqenable = 1; 3093 ql_dbg(ql_dbg_multiq, vha, 0xc005, 3094 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3095 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3096 ql_dbg(ql_dbg_init, vha, 0x0055, 3097 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3098 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3099 3100 msix_out: 3101 kfree(entries); 3102 return ret; 3103 } 3104 3105 int 3106 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 3107 { 3108 int ret = QLA_FUNCTION_FAILED; 3109 device_reg_t *reg = ha->iobase; 3110 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3111 3112 /* If possible, enable MSI-X. */ 3113 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3114 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) && 3115 !IS_QLA27XX(ha)) 3116 goto skip_msi; 3117 3118 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 3119 (ha->pdev->subsystem_device == 0x7040 || 3120 ha->pdev->subsystem_device == 0x7041 || 3121 ha->pdev->subsystem_device == 0x1705)) { 3122 ql_log(ql_log_warn, vha, 0x0034, 3123 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n", 3124 ha->pdev->subsystem_vendor, 3125 ha->pdev->subsystem_device); 3126 goto skip_msi; 3127 } 3128 3129 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) { 3130 ql_log(ql_log_warn, vha, 0x0035, 3131 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n", 3132 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX); 3133 goto skip_msix; 3134 } 3135 3136 ret = qla24xx_enable_msix(ha, rsp); 3137 if (!ret) { 3138 ql_dbg(ql_dbg_init, vha, 0x0036, 3139 "MSI-X: Enabled (0x%X, 0x%X).\n", 3140 ha->chip_revision, ha->fw_attributes); 3141 goto clear_risc_ints; 3142 } 3143 3144 skip_msix: 3145 3146 ql_log(ql_log_info, vha, 0x0037, 3147 "Falling back-to MSI mode -%d.\n", ret); 3148 3149 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3150 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) && 3151 !IS_QLA27XX(ha)) 3152 goto skip_msi; 3153 3154 ret = pci_enable_msi(ha->pdev); 3155 if (!ret) { 3156 ql_dbg(ql_dbg_init, vha, 0x0038, 3157 "MSI: Enabled.\n"); 3158 ha->flags.msi_enabled = 1; 3159 } else 3160 ql_log(ql_log_warn, vha, 0x0039, 3161 "Falling back-to INTa mode -- %d.\n", ret); 3162 skip_msi: 3163 3164 /* Skip INTx on ISP82xx. */ 3165 if (!ha->flags.msi_enabled && IS_QLA82XX(ha)) 3166 return QLA_FUNCTION_FAILED; 3167 3168 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 3169 ha->flags.msi_enabled ? 0 : IRQF_SHARED, 3170 QLA2XXX_DRIVER_NAME, rsp); 3171 if (ret) { 3172 ql_log(ql_log_warn, vha, 0x003a, 3173 "Failed to reserve interrupt %d already in use.\n", 3174 ha->pdev->irq); 3175 goto fail; 3176 } else if (!ha->flags.msi_enabled) { 3177 ql_dbg(ql_dbg_init, vha, 0x0125, 3178 "INTa mode: Enabled.\n"); 3179 ha->flags.mr_intr_valid = 1; 3180 } 3181 3182 clear_risc_ints: 3183 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha)) 3184 goto fail; 3185 3186 spin_lock_irq(&ha->hardware_lock); 3187 WRT_REG_WORD(®->isp.semaphore, 0); 3188 spin_unlock_irq(&ha->hardware_lock); 3189 3190 fail: 3191 return ret; 3192 } 3193 3194 void 3195 qla2x00_free_irqs(scsi_qla_host_t *vha) 3196 { 3197 struct qla_hw_data *ha = vha->hw; 3198 struct rsp_que *rsp; 3199 3200 /* 3201 * We need to check that ha->rsp_q_map is valid in case we are called 3202 * from a probe failure context. 3203 */ 3204 if (!ha->rsp_q_map || !ha->rsp_q_map[0]) 3205 return; 3206 rsp = ha->rsp_q_map[0]; 3207 3208 if (ha->flags.msix_enabled) 3209 qla24xx_disable_msix(ha); 3210 else if (ha->flags.msi_enabled) { 3211 free_irq(ha->pdev->irq, rsp); 3212 pci_disable_msi(ha->pdev); 3213 } else 3214 free_irq(ha->pdev->irq, rsp); 3215 } 3216 3217 3218 int qla25xx_request_irq(struct rsp_que *rsp) 3219 { 3220 struct qla_hw_data *ha = rsp->hw; 3221 struct qla_init_msix_entry *intr = &msix_entries[2]; 3222 struct qla_msix_entry *msix = rsp->msix; 3223 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3224 int ret; 3225 3226 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); 3227 if (ret) { 3228 ql_log(ql_log_fatal, vha, 0x00e6, 3229 "MSI-X: Unable to register handler -- %x/%d.\n", 3230 msix->vector, ret); 3231 return ret; 3232 } 3233 msix->have_irq = 1; 3234 msix->rsp = rsp; 3235 return ret; 3236 } 3237