1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 #include "qla_target.h" 9 10 #include <linux/delay.h> 11 #include <linux/slab.h> 12 #include <linux/t10-pi.h> 13 #include <scsi/scsi_tcq.h> 14 #include <scsi/scsi_bsg_fc.h> 15 #include <scsi/scsi_eh.h> 16 17 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); 19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *); 20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *, 21 sts_entry_t *); 22 23 /** 24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 25 * @irq: 26 * @dev_id: SCSI driver HA context 27 * 28 * Called by system whenever the host adapter generates an interrupt. 29 * 30 * Returns handled flag. 31 */ 32 irqreturn_t 33 qla2100_intr_handler(int irq, void *dev_id) 34 { 35 scsi_qla_host_t *vha; 36 struct qla_hw_data *ha; 37 struct device_reg_2xxx __iomem *reg; 38 int status; 39 unsigned long iter; 40 uint16_t hccr; 41 uint16_t mb[4]; 42 struct rsp_que *rsp; 43 unsigned long flags; 44 45 rsp = (struct rsp_que *) dev_id; 46 if (!rsp) { 47 ql_log(ql_log_info, NULL, 0x505d, 48 "%s: NULL response queue pointer.\n", __func__); 49 return (IRQ_NONE); 50 } 51 52 ha = rsp->hw; 53 reg = &ha->iobase->isp; 54 status = 0; 55 56 spin_lock_irqsave(&ha->hardware_lock, flags); 57 vha = pci_get_drvdata(ha->pdev); 58 for (iter = 50; iter--; ) { 59 hccr = RD_REG_WORD(®->hccr); 60 if (qla2x00_check_reg16_for_disconnect(vha, hccr)) 61 break; 62 if (hccr & HCCR_RISC_PAUSE) { 63 if (pci_channel_offline(ha->pdev)) 64 break; 65 66 /* 67 * Issue a "HARD" reset in order for the RISC interrupt 68 * bit to be cleared. Schedule a big hammer to get 69 * out of the RISC PAUSED state. 70 */ 71 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 72 RD_REG_WORD(®->hccr); 73 74 ha->isp_ops->fw_dump(vha, 1); 75 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 76 break; 77 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 78 break; 79 80 if (RD_REG_WORD(®->semaphore) & BIT_0) { 81 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 82 RD_REG_WORD(®->hccr); 83 84 /* Get mailbox data. */ 85 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 86 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 87 qla2x00_mbx_completion(vha, mb[0]); 88 status |= MBX_INTERRUPT; 89 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 90 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 91 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 92 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 93 qla2x00_async_event(vha, rsp, mb); 94 } else { 95 /*EMPTY*/ 96 ql_dbg(ql_dbg_async, vha, 0x5025, 97 "Unrecognized interrupt type (%d).\n", 98 mb[0]); 99 } 100 /* Release mailbox registers. */ 101 WRT_REG_WORD(®->semaphore, 0); 102 RD_REG_WORD(®->semaphore); 103 } else { 104 qla2x00_process_response_queue(rsp); 105 106 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 107 RD_REG_WORD(®->hccr); 108 } 109 } 110 qla2x00_handle_mbx_completion(ha, status); 111 spin_unlock_irqrestore(&ha->hardware_lock, flags); 112 113 return (IRQ_HANDLED); 114 } 115 116 bool 117 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg) 118 { 119 /* Check for PCI disconnection */ 120 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) { 121 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) && 122 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) && 123 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) { 124 /* 125 * Schedule this (only once) on the default system 126 * workqueue so that all the adapter workqueues and the 127 * DPC thread can be shutdown cleanly. 128 */ 129 schedule_work(&vha->hw->board_disable); 130 } 131 return true; 132 } else 133 return false; 134 } 135 136 bool 137 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg) 138 { 139 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg); 140 } 141 142 /** 143 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 144 * @irq: 145 * @dev_id: SCSI driver HA context 146 * 147 * Called by system whenever the host adapter generates an interrupt. 148 * 149 * Returns handled flag. 150 */ 151 irqreturn_t 152 qla2300_intr_handler(int irq, void *dev_id) 153 { 154 scsi_qla_host_t *vha; 155 struct device_reg_2xxx __iomem *reg; 156 int status; 157 unsigned long iter; 158 uint32_t stat; 159 uint16_t hccr; 160 uint16_t mb[4]; 161 struct rsp_que *rsp; 162 struct qla_hw_data *ha; 163 unsigned long flags; 164 165 rsp = (struct rsp_que *) dev_id; 166 if (!rsp) { 167 ql_log(ql_log_info, NULL, 0x5058, 168 "%s: NULL response queue pointer.\n", __func__); 169 return (IRQ_NONE); 170 } 171 172 ha = rsp->hw; 173 reg = &ha->iobase->isp; 174 status = 0; 175 176 spin_lock_irqsave(&ha->hardware_lock, flags); 177 vha = pci_get_drvdata(ha->pdev); 178 for (iter = 50; iter--; ) { 179 stat = RD_REG_DWORD(®->u.isp2300.host_status); 180 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 181 break; 182 if (stat & HSR_RISC_PAUSED) { 183 if (unlikely(pci_channel_offline(ha->pdev))) 184 break; 185 186 hccr = RD_REG_WORD(®->hccr); 187 188 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 189 ql_log(ql_log_warn, vha, 0x5026, 190 "Parity error -- HCCR=%x, Dumping " 191 "firmware.\n", hccr); 192 else 193 ql_log(ql_log_warn, vha, 0x5027, 194 "RISC paused -- HCCR=%x, Dumping " 195 "firmware.\n", hccr); 196 197 /* 198 * Issue a "HARD" reset in order for the RISC 199 * interrupt bit to be cleared. Schedule a big 200 * hammer to get out of the RISC PAUSED state. 201 */ 202 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 203 RD_REG_WORD(®->hccr); 204 205 ha->isp_ops->fw_dump(vha, 1); 206 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 207 break; 208 } else if ((stat & HSR_RISC_INT) == 0) 209 break; 210 211 switch (stat & 0xff) { 212 case 0x1: 213 case 0x2: 214 case 0x10: 215 case 0x11: 216 qla2x00_mbx_completion(vha, MSW(stat)); 217 status |= MBX_INTERRUPT; 218 219 /* Release mailbox registers. */ 220 WRT_REG_WORD(®->semaphore, 0); 221 break; 222 case 0x12: 223 mb[0] = MSW(stat); 224 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 225 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 226 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 227 qla2x00_async_event(vha, rsp, mb); 228 break; 229 case 0x13: 230 qla2x00_process_response_queue(rsp); 231 break; 232 case 0x15: 233 mb[0] = MBA_CMPLT_1_16BIT; 234 mb[1] = MSW(stat); 235 qla2x00_async_event(vha, rsp, mb); 236 break; 237 case 0x16: 238 mb[0] = MBA_SCSI_COMPLETION; 239 mb[1] = MSW(stat); 240 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 241 qla2x00_async_event(vha, rsp, mb); 242 break; 243 default: 244 ql_dbg(ql_dbg_async, vha, 0x5028, 245 "Unrecognized interrupt type (%d).\n", stat & 0xff); 246 break; 247 } 248 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 249 RD_REG_WORD_RELAXED(®->hccr); 250 } 251 qla2x00_handle_mbx_completion(ha, status); 252 spin_unlock_irqrestore(&ha->hardware_lock, flags); 253 254 return (IRQ_HANDLED); 255 } 256 257 /** 258 * qla2x00_mbx_completion() - Process mailbox command completions. 259 * @ha: SCSI driver HA context 260 * @mb0: Mailbox0 register 261 */ 262 static void 263 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 264 { 265 uint16_t cnt; 266 uint32_t mboxes; 267 uint16_t __iomem *wptr; 268 struct qla_hw_data *ha = vha->hw; 269 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 270 271 /* Read all mbox registers? */ 272 mboxes = (1 << ha->mbx_count) - 1; 273 if (!ha->mcp) 274 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n"); 275 else 276 mboxes = ha->mcp->in_mb; 277 278 /* Load return mailbox registers. */ 279 ha->flags.mbox_int = 1; 280 ha->mailbox_out[0] = mb0; 281 mboxes >>= 1; 282 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 283 284 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 285 if (IS_QLA2200(ha) && cnt == 8) 286 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 287 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0)) 288 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 289 else if (mboxes & BIT_0) 290 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 291 292 wptr++; 293 mboxes >>= 1; 294 } 295 } 296 297 static void 298 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) 299 { 300 static char *event[] = 301 { "Complete", "Request Notification", "Time Extension" }; 302 int rval; 303 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24; 304 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82; 305 uint16_t __iomem *wptr; 306 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; 307 308 /* Seed data -- mailbox1 -> mailbox7. */ 309 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw)) 310 wptr = (uint16_t __iomem *)®24->mailbox1; 311 else if (IS_QLA8044(vha->hw)) 312 wptr = (uint16_t __iomem *)®82->mailbox_out[1]; 313 else 314 return; 315 316 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) 317 mb[cnt] = RD_REG_WORD(wptr); 318 319 ql_dbg(ql_dbg_async, vha, 0x5021, 320 "Inter-Driver Communication %s -- " 321 "%04x %04x %04x %04x %04x %04x %04x.\n", 322 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3], 323 mb[4], mb[5], mb[6]); 324 switch (aen) { 325 /* Handle IDC Error completion case. */ 326 case MBA_IDC_COMPLETE: 327 if (mb[1] >> 15) { 328 vha->hw->flags.idc_compl_status = 1; 329 if (vha->hw->notify_dcbx_comp && !vha->vp_idx) 330 complete(&vha->hw->dcbx_comp); 331 } 332 break; 333 334 case MBA_IDC_NOTIFY: 335 /* Acknowledgement needed? [Notify && non-zero timeout]. */ 336 timeout = (descr >> 8) & 0xf; 337 ql_dbg(ql_dbg_async, vha, 0x5022, 338 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n", 339 vha->host_no, event[aen & 0xff], timeout); 340 341 if (!timeout) 342 return; 343 rval = qla2x00_post_idc_ack_work(vha, mb); 344 if (rval != QLA_SUCCESS) 345 ql_log(ql_log_warn, vha, 0x5023, 346 "IDC failed to post ACK.\n"); 347 break; 348 case MBA_IDC_TIME_EXT: 349 vha->hw->idc_extend_tmo = descr; 350 ql_dbg(ql_dbg_async, vha, 0x5087, 351 "%lu Inter-Driver Communication %s -- " 352 "Extend timeout by=%d.\n", 353 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo); 354 break; 355 } 356 } 357 358 #define LS_UNKNOWN 2 359 const char * 360 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed) 361 { 362 static const char *const link_speeds[] = { 363 "1", "2", "?", "4", "8", "16", "32", "10" 364 }; 365 #define QLA_LAST_SPEED 7 366 367 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 368 return link_speeds[0]; 369 else if (speed == 0x13) 370 return link_speeds[QLA_LAST_SPEED]; 371 else if (speed < QLA_LAST_SPEED) 372 return link_speeds[speed]; 373 else 374 return link_speeds[LS_UNKNOWN]; 375 } 376 377 static void 378 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb) 379 { 380 struct qla_hw_data *ha = vha->hw; 381 382 /* 383 * 8200 AEN Interpretation: 384 * mb[0] = AEN code 385 * mb[1] = AEN Reason code 386 * mb[2] = LSW of Peg-Halt Status-1 Register 387 * mb[6] = MSW of Peg-Halt Status-1 Register 388 * mb[3] = LSW of Peg-Halt Status-2 register 389 * mb[7] = MSW of Peg-Halt Status-2 register 390 * mb[4] = IDC Device-State Register value 391 * mb[5] = IDC Driver-Presence Register value 392 */ 393 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: " 394 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n", 395 mb[0], mb[1], mb[2], mb[6]); 396 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x " 397 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x " 398 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]); 399 400 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE | 401 IDC_HEARTBEAT_FAILURE)) { 402 ha->flags.nic_core_hung = 1; 403 ql_log(ql_log_warn, vha, 0x5060, 404 "83XX: F/W Error Reported: Check if reset required.\n"); 405 406 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) { 407 uint32_t protocol_engine_id, fw_err_code, err_level; 408 409 /* 410 * IDC_PEG_HALT_STATUS_CHANGE interpretation: 411 * - PEG-Halt Status-1 Register: 412 * (LSW = mb[2], MSW = mb[6]) 413 * Bits 0-7 = protocol-engine ID 414 * Bits 8-28 = f/w error code 415 * Bits 29-31 = Error-level 416 * Error-level 0x1 = Non-Fatal error 417 * Error-level 0x2 = Recoverable Fatal error 418 * Error-level 0x4 = UnRecoverable Fatal error 419 * - PEG-Halt Status-2 Register: 420 * (LSW = mb[3], MSW = mb[7]) 421 */ 422 protocol_engine_id = (mb[2] & 0xff); 423 fw_err_code = (((mb[2] & 0xff00) >> 8) | 424 ((mb[6] & 0x1fff) << 8)); 425 err_level = ((mb[6] & 0xe000) >> 13); 426 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 " 427 "Register: protocol_engine_id=0x%x " 428 "fw_err_code=0x%x err_level=0x%x.\n", 429 protocol_engine_id, fw_err_code, err_level); 430 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 " 431 "Register: 0x%x%x.\n", mb[7], mb[3]); 432 if (err_level == ERR_LEVEL_NON_FATAL) { 433 ql_log(ql_log_warn, vha, 0x5063, 434 "Not a fatal error, f/w has recovered " 435 "iteself.\n"); 436 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) { 437 ql_log(ql_log_fatal, vha, 0x5064, 438 "Recoverable Fatal error: Chip reset " 439 "required.\n"); 440 qla83xx_schedule_work(vha, 441 QLA83XX_NIC_CORE_RESET); 442 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) { 443 ql_log(ql_log_fatal, vha, 0x5065, 444 "Unrecoverable Fatal error: Set FAILED " 445 "state, reboot required.\n"); 446 qla83xx_schedule_work(vha, 447 QLA83XX_NIC_CORE_UNRECOVERABLE); 448 } 449 } 450 451 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) { 452 uint16_t peg_fw_state, nw_interface_link_up; 453 uint16_t nw_interface_signal_detect, sfp_status; 454 uint16_t htbt_counter, htbt_monitor_enable; 455 uint16_t sfp_additonal_info, sfp_multirate; 456 uint16_t sfp_tx_fault, link_speed, dcbx_status; 457 458 /* 459 * IDC_NIC_FW_REPORTED_FAILURE interpretation: 460 * - PEG-to-FC Status Register: 461 * (LSW = mb[2], MSW = mb[6]) 462 * Bits 0-7 = Peg-Firmware state 463 * Bit 8 = N/W Interface Link-up 464 * Bit 9 = N/W Interface signal detected 465 * Bits 10-11 = SFP Status 466 * SFP Status 0x0 = SFP+ transceiver not expected 467 * SFP Status 0x1 = SFP+ transceiver not present 468 * SFP Status 0x2 = SFP+ transceiver invalid 469 * SFP Status 0x3 = SFP+ transceiver present and 470 * valid 471 * Bits 12-14 = Heartbeat Counter 472 * Bit 15 = Heartbeat Monitor Enable 473 * Bits 16-17 = SFP Additional Info 474 * SFP info 0x0 = Unregocnized transceiver for 475 * Ethernet 476 * SFP info 0x1 = SFP+ brand validation failed 477 * SFP info 0x2 = SFP+ speed validation failed 478 * SFP info 0x3 = SFP+ access error 479 * Bit 18 = SFP Multirate 480 * Bit 19 = SFP Tx Fault 481 * Bits 20-22 = Link Speed 482 * Bits 23-27 = Reserved 483 * Bits 28-30 = DCBX Status 484 * DCBX Status 0x0 = DCBX Disabled 485 * DCBX Status 0x1 = DCBX Enabled 486 * DCBX Status 0x2 = DCBX Exchange error 487 * Bit 31 = Reserved 488 */ 489 peg_fw_state = (mb[2] & 0x00ff); 490 nw_interface_link_up = ((mb[2] & 0x0100) >> 8); 491 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9); 492 sfp_status = ((mb[2] & 0x0c00) >> 10); 493 htbt_counter = ((mb[2] & 0x7000) >> 12); 494 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15); 495 sfp_additonal_info = (mb[6] & 0x0003); 496 sfp_multirate = ((mb[6] & 0x0004) >> 2); 497 sfp_tx_fault = ((mb[6] & 0x0008) >> 3); 498 link_speed = ((mb[6] & 0x0070) >> 4); 499 dcbx_status = ((mb[6] & 0x7000) >> 12); 500 501 ql_log(ql_log_warn, vha, 0x5066, 502 "Peg-to-Fc Status Register:\n" 503 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, " 504 "nw_interface_signal_detect=0x%x" 505 "\nsfp_statis=0x%x.\n ", peg_fw_state, 506 nw_interface_link_up, nw_interface_signal_detect, 507 sfp_status); 508 ql_log(ql_log_warn, vha, 0x5067, 509 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, " 510 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ", 511 htbt_counter, htbt_monitor_enable, 512 sfp_additonal_info, sfp_multirate); 513 ql_log(ql_log_warn, vha, 0x5068, 514 "sfp_tx_fault=0x%x, link_state=0x%x, " 515 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed, 516 dcbx_status); 517 518 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 519 } 520 521 if (mb[1] & IDC_HEARTBEAT_FAILURE) { 522 ql_log(ql_log_warn, vha, 0x5069, 523 "Heartbeat Failure encountered, chip reset " 524 "required.\n"); 525 526 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 527 } 528 } 529 530 if (mb[1] & IDC_DEVICE_STATE_CHANGE) { 531 ql_log(ql_log_info, vha, 0x506a, 532 "IDC Device-State changed = 0x%x.\n", mb[4]); 533 if (ha->flags.nic_core_reset_owner) 534 return; 535 qla83xx_schedule_work(vha, MBA_IDC_AEN); 536 } 537 } 538 539 int 540 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry) 541 { 542 struct qla_hw_data *ha = vha->hw; 543 scsi_qla_host_t *vp; 544 uint32_t vp_did; 545 unsigned long flags; 546 int ret = 0; 547 548 if (!ha->num_vhosts) 549 return ret; 550 551 spin_lock_irqsave(&ha->vport_slock, flags); 552 list_for_each_entry(vp, &ha->vp_list, list) { 553 vp_did = vp->d_id.b24; 554 if (vp_did == rscn_entry) { 555 ret = 1; 556 break; 557 } 558 } 559 spin_unlock_irqrestore(&ha->vport_slock, flags); 560 561 return ret; 562 } 563 564 static inline fc_port_t * 565 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id) 566 { 567 fc_port_t *fcport; 568 569 list_for_each_entry(fcport, &vha->vp_fcports, list) 570 if (fcport->loop_id == loop_id) 571 return fcport; 572 return NULL; 573 } 574 575 /** 576 * qla2x00_async_event() - Process aynchronous events. 577 * @ha: SCSI driver HA context 578 * @mb: Mailbox registers (0 - 3) 579 */ 580 void 581 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) 582 { 583 uint16_t handle_cnt; 584 uint16_t cnt, mbx; 585 uint32_t handles[5]; 586 struct qla_hw_data *ha = vha->hw; 587 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 588 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; 589 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; 590 uint32_t rscn_entry, host_pid; 591 unsigned long flags; 592 fc_port_t *fcport = NULL; 593 594 /* Setup to process RIO completion. */ 595 handle_cnt = 0; 596 if (IS_CNA_CAPABLE(ha)) 597 goto skip_rio; 598 switch (mb[0]) { 599 case MBA_SCSI_COMPLETION: 600 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 601 handle_cnt = 1; 602 break; 603 case MBA_CMPLT_1_16BIT: 604 handles[0] = mb[1]; 605 handle_cnt = 1; 606 mb[0] = MBA_SCSI_COMPLETION; 607 break; 608 case MBA_CMPLT_2_16BIT: 609 handles[0] = mb[1]; 610 handles[1] = mb[2]; 611 handle_cnt = 2; 612 mb[0] = MBA_SCSI_COMPLETION; 613 break; 614 case MBA_CMPLT_3_16BIT: 615 handles[0] = mb[1]; 616 handles[1] = mb[2]; 617 handles[2] = mb[3]; 618 handle_cnt = 3; 619 mb[0] = MBA_SCSI_COMPLETION; 620 break; 621 case MBA_CMPLT_4_16BIT: 622 handles[0] = mb[1]; 623 handles[1] = mb[2]; 624 handles[2] = mb[3]; 625 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 626 handle_cnt = 4; 627 mb[0] = MBA_SCSI_COMPLETION; 628 break; 629 case MBA_CMPLT_5_16BIT: 630 handles[0] = mb[1]; 631 handles[1] = mb[2]; 632 handles[2] = mb[3]; 633 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 634 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 635 handle_cnt = 5; 636 mb[0] = MBA_SCSI_COMPLETION; 637 break; 638 case MBA_CMPLT_2_32BIT: 639 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 640 handles[1] = le32_to_cpu( 641 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 642 RD_MAILBOX_REG(ha, reg, 6)); 643 handle_cnt = 2; 644 mb[0] = MBA_SCSI_COMPLETION; 645 break; 646 default: 647 break; 648 } 649 skip_rio: 650 switch (mb[0]) { 651 case MBA_SCSI_COMPLETION: /* Fast Post */ 652 if (!vha->flags.online) 653 break; 654 655 for (cnt = 0; cnt < handle_cnt; cnt++) 656 qla2x00_process_completed_request(vha, rsp->req, 657 handles[cnt]); 658 break; 659 660 case MBA_RESET: /* Reset */ 661 ql_dbg(ql_dbg_async, vha, 0x5002, 662 "Asynchronous RESET.\n"); 663 664 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 665 break; 666 667 case MBA_SYSTEM_ERR: /* System Error */ 668 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ? 669 RD_REG_WORD(®24->mailbox7) : 0; 670 ql_log(ql_log_warn, vha, 0x5003, 671 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh " 672 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); 673 674 ha->isp_ops->fw_dump(vha, 1); 675 676 if (IS_FWI2_CAPABLE(ha)) { 677 if (mb[1] == 0 && mb[2] == 0) { 678 ql_log(ql_log_fatal, vha, 0x5004, 679 "Unrecoverable Hardware Error: adapter " 680 "marked OFFLINE!\n"); 681 vha->flags.online = 0; 682 vha->device_flags |= DFLG_DEV_FAILED; 683 } else { 684 /* Check to see if MPI timeout occurred */ 685 if ((mbx & MBX_3) && (ha->port_no == 0)) 686 set_bit(MPI_RESET_NEEDED, 687 &vha->dpc_flags); 688 689 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 690 } 691 } else if (mb[1] == 0) { 692 ql_log(ql_log_fatal, vha, 0x5005, 693 "Unrecoverable Hardware Error: adapter marked " 694 "OFFLINE!\n"); 695 vha->flags.online = 0; 696 vha->device_flags |= DFLG_DEV_FAILED; 697 } else 698 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 699 break; 700 701 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 702 ql_log(ql_log_warn, vha, 0x5006, 703 "ISP Request Transfer Error (%x).\n", mb[1]); 704 705 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 706 break; 707 708 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 709 ql_log(ql_log_warn, vha, 0x5007, 710 "ISP Response Transfer Error (%x).\n", mb[1]); 711 712 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 713 break; 714 715 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 716 ql_dbg(ql_dbg_async, vha, 0x5008, 717 "Asynchronous WAKEUP_THRES (%x).\n", mb[1]); 718 break; 719 720 case MBA_LOOP_INIT_ERR: 721 ql_log(ql_log_warn, vha, 0x5090, 722 "LOOP INIT ERROR (%x).\n", mb[1]); 723 ha->isp_ops->fw_dump(vha, 1); 724 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 725 break; 726 727 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 728 ql_dbg(ql_dbg_async, vha, 0x5009, 729 "LIP occurred (%x).\n", mb[1]); 730 731 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 732 atomic_set(&vha->loop_state, LOOP_DOWN); 733 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 734 qla2x00_mark_all_devices_lost(vha, 1); 735 } 736 737 if (vha->vp_idx) { 738 atomic_set(&vha->vp_state, VP_FAILED); 739 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 740 } 741 742 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 743 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 744 745 vha->flags.management_server_logged_in = 0; 746 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 747 break; 748 749 case MBA_LOOP_UP: /* Loop Up Event */ 750 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 751 ha->link_data_rate = PORT_SPEED_1GB; 752 else 753 ha->link_data_rate = mb[1]; 754 755 ql_log(ql_log_info, vha, 0x500a, 756 "LOOP UP detected (%s Gbps).\n", 757 qla2x00_get_link_speed_str(ha, ha->link_data_rate)); 758 759 vha->flags.management_server_logged_in = 0; 760 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 761 break; 762 763 case MBA_LOOP_DOWN: /* Loop Down Event */ 764 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha)) 765 ? RD_REG_WORD(®24->mailbox4) : 0; 766 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4]) 767 : mbx; 768 ql_log(ql_log_info, vha, 0x500b, 769 "LOOP DOWN detected (%x %x %x %x).\n", 770 mb[1], mb[2], mb[3], mbx); 771 772 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 773 atomic_set(&vha->loop_state, LOOP_DOWN); 774 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 775 /* 776 * In case of loop down, restore WWPN from 777 * NVRAM in case of FA-WWPN capable ISP 778 * Restore for Physical Port only 779 */ 780 if (!vha->vp_idx) { 781 if (ha->flags.fawwpn_enabled) { 782 void *wwpn = ha->init_cb->port_name; 783 memcpy(vha->port_name, wwpn, WWN_SIZE); 784 fc_host_port_name(vha->host) = 785 wwn_to_u64(vha->port_name); 786 ql_dbg(ql_dbg_init + ql_dbg_verbose, 787 vha, 0x0144, "LOOP DOWN detected," 788 "restore WWPN %016llx\n", 789 wwn_to_u64(vha->port_name)); 790 } 791 792 clear_bit(VP_CONFIG_OK, &vha->vp_flags); 793 } 794 795 vha->device_flags |= DFLG_NO_CABLE; 796 qla2x00_mark_all_devices_lost(vha, 1); 797 } 798 799 if (vha->vp_idx) { 800 atomic_set(&vha->vp_state, VP_FAILED); 801 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 802 } 803 804 vha->flags.management_server_logged_in = 0; 805 ha->link_data_rate = PORT_SPEED_UNKNOWN; 806 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 807 break; 808 809 case MBA_LIP_RESET: /* LIP reset occurred */ 810 ql_dbg(ql_dbg_async, vha, 0x500c, 811 "LIP reset occurred (%x).\n", mb[1]); 812 813 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 814 atomic_set(&vha->loop_state, LOOP_DOWN); 815 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 816 qla2x00_mark_all_devices_lost(vha, 1); 817 } 818 819 if (vha->vp_idx) { 820 atomic_set(&vha->vp_state, VP_FAILED); 821 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 822 } 823 824 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 825 826 ha->operating_mode = LOOP; 827 vha->flags.management_server_logged_in = 0; 828 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 829 break; 830 831 /* case MBA_DCBX_COMPLETE: */ 832 case MBA_POINT_TO_POINT: /* Point-to-Point */ 833 if (IS_QLA2100(ha)) 834 break; 835 836 if (IS_CNA_CAPABLE(ha)) { 837 ql_dbg(ql_dbg_async, vha, 0x500d, 838 "DCBX Completed -- %04x %04x %04x.\n", 839 mb[1], mb[2], mb[3]); 840 if (ha->notify_dcbx_comp && !vha->vp_idx) 841 complete(&ha->dcbx_comp); 842 843 } else 844 ql_dbg(ql_dbg_async, vha, 0x500e, 845 "Asynchronous P2P MODE received.\n"); 846 847 /* 848 * Until there's a transition from loop down to loop up, treat 849 * this as loop down only. 850 */ 851 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 852 atomic_set(&vha->loop_state, LOOP_DOWN); 853 if (!atomic_read(&vha->loop_down_timer)) 854 atomic_set(&vha->loop_down_timer, 855 LOOP_DOWN_TIME); 856 qla2x00_mark_all_devices_lost(vha, 1); 857 } 858 859 if (vha->vp_idx) { 860 atomic_set(&vha->vp_state, VP_FAILED); 861 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 862 } 863 864 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 865 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 866 867 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 868 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 869 870 ha->flags.gpsc_supported = 1; 871 vha->flags.management_server_logged_in = 0; 872 break; 873 874 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 875 if (IS_QLA2100(ha)) 876 break; 877 878 ql_dbg(ql_dbg_async, vha, 0x500f, 879 "Configuration change detected: value=%x.\n", mb[1]); 880 881 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 882 atomic_set(&vha->loop_state, LOOP_DOWN); 883 if (!atomic_read(&vha->loop_down_timer)) 884 atomic_set(&vha->loop_down_timer, 885 LOOP_DOWN_TIME); 886 qla2x00_mark_all_devices_lost(vha, 1); 887 } 888 889 if (vha->vp_idx) { 890 atomic_set(&vha->vp_state, VP_FAILED); 891 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 892 } 893 894 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 895 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 896 break; 897 898 case MBA_PORT_UPDATE: /* Port database update */ 899 /* 900 * Handle only global and vn-port update events 901 * 902 * Relevant inputs: 903 * mb[1] = N_Port handle of changed port 904 * OR 0xffff for global event 905 * mb[2] = New login state 906 * 7 = Port logged out 907 * mb[3] = LSB is vp_idx, 0xff = all vps 908 * 909 * Skip processing if: 910 * Event is global, vp_idx is NOT all vps, 911 * vp_idx does not match 912 * Event is not global, vp_idx does not match 913 */ 914 if (IS_QLA2XXX_MIDTYPE(ha) && 915 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 916 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 917 break; 918 919 if (mb[2] == 0x7) { 920 ql_dbg(ql_dbg_async, vha, 0x5010, 921 "Port %s %04x %04x %04x.\n", 922 mb[1] == 0xffff ? "unavailable" : "logout", 923 mb[1], mb[2], mb[3]); 924 925 if (mb[1] == 0xffff) 926 goto global_port_update; 927 928 /* Port logout */ 929 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]); 930 if (!fcport) 931 break; 932 if (atomic_read(&fcport->state) != FCS_ONLINE) 933 break; 934 ql_dbg(ql_dbg_async, vha, 0x508a, 935 "Marking port lost loopid=%04x portid=%06x.\n", 936 fcport->loop_id, fcport->d_id.b24); 937 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 938 break; 939 940 global_port_update: 941 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 942 atomic_set(&vha->loop_state, LOOP_DOWN); 943 atomic_set(&vha->loop_down_timer, 944 LOOP_DOWN_TIME); 945 vha->device_flags |= DFLG_NO_CABLE; 946 qla2x00_mark_all_devices_lost(vha, 1); 947 } 948 949 if (vha->vp_idx) { 950 atomic_set(&vha->vp_state, VP_FAILED); 951 fc_vport_set_state(vha->fc_vport, 952 FC_VPORT_FAILED); 953 qla2x00_mark_all_devices_lost(vha, 1); 954 } 955 956 vha->flags.management_server_logged_in = 0; 957 ha->link_data_rate = PORT_SPEED_UNKNOWN; 958 break; 959 } 960 961 /* 962 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 963 * event etc. earlier indicating loop is down) then process 964 * it. Otherwise ignore it and Wait for RSCN to come in. 965 */ 966 atomic_set(&vha->loop_down_timer, 0); 967 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 968 atomic_read(&vha->loop_state) != LOOP_DEAD) { 969 ql_dbg(ql_dbg_async, vha, 0x5011, 970 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n", 971 mb[1], mb[2], mb[3]); 972 973 qlt_async_event(mb[0], vha, mb); 974 break; 975 } 976 977 ql_dbg(ql_dbg_async, vha, 0x5012, 978 "Port database changed %04x %04x %04x.\n", 979 mb[1], mb[2], mb[3]); 980 981 /* 982 * Mark all devices as missing so we will login again. 983 */ 984 atomic_set(&vha->loop_state, LOOP_UP); 985 986 qla2x00_mark_all_devices_lost(vha, 1); 987 988 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha)) 989 set_bit(SCR_PENDING, &vha->dpc_flags); 990 991 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 992 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 993 set_bit(VP_CONFIG_OK, &vha->vp_flags); 994 995 qlt_async_event(mb[0], vha, mb); 996 break; 997 998 case MBA_RSCN_UPDATE: /* State Change Registration */ 999 /* Check if the Vport has issued a SCR */ 1000 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 1001 break; 1002 /* Only handle SCNs for our Vport index. */ 1003 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 1004 break; 1005 1006 ql_dbg(ql_dbg_async, vha, 0x5013, 1007 "RSCN database changed -- %04x %04x %04x.\n", 1008 mb[1], mb[2], mb[3]); 1009 1010 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 1011 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 1012 | vha->d_id.b.al_pa; 1013 if (rscn_entry == host_pid) { 1014 ql_dbg(ql_dbg_async, vha, 0x5014, 1015 "Ignoring RSCN update to local host " 1016 "port ID (%06x).\n", host_pid); 1017 break; 1018 } 1019 1020 /* Ignore reserved bits from RSCN-payload. */ 1021 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 1022 1023 /* Skip RSCNs for virtual ports on the same physical port */ 1024 if (qla2x00_is_a_vp_did(vha, rscn_entry)) 1025 break; 1026 1027 /* 1028 * Search for the rport related to this RSCN entry and mark it 1029 * as lost. 1030 */ 1031 list_for_each_entry(fcport, &vha->vp_fcports, list) { 1032 if (atomic_read(&fcport->state) != FCS_ONLINE) 1033 continue; 1034 if (fcport->d_id.b24 == rscn_entry) { 1035 qla2x00_mark_device_lost(vha, fcport, 0, 0); 1036 break; 1037 } 1038 } 1039 1040 atomic_set(&vha->loop_down_timer, 0); 1041 vha->flags.management_server_logged_in = 0; 1042 1043 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 1044 set_bit(RSCN_UPDATE, &vha->dpc_flags); 1045 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 1046 break; 1047 1048 /* case MBA_RIO_RESPONSE: */ 1049 case MBA_ZIO_RESPONSE: 1050 ql_dbg(ql_dbg_async, vha, 0x5015, 1051 "[R|Z]IO update completion.\n"); 1052 1053 if (IS_FWI2_CAPABLE(ha)) 1054 qla24xx_process_response_queue(vha, rsp); 1055 else 1056 qla2x00_process_response_queue(rsp); 1057 break; 1058 1059 case MBA_DISCARD_RND_FRAME: 1060 ql_dbg(ql_dbg_async, vha, 0x5016, 1061 "Discard RND Frame -- %04x %04x %04x.\n", 1062 mb[1], mb[2], mb[3]); 1063 break; 1064 1065 case MBA_TRACE_NOTIFICATION: 1066 ql_dbg(ql_dbg_async, vha, 0x5017, 1067 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]); 1068 break; 1069 1070 case MBA_ISP84XX_ALERT: 1071 ql_dbg(ql_dbg_async, vha, 0x5018, 1072 "ISP84XX Alert Notification -- %04x %04x %04x.\n", 1073 mb[1], mb[2], mb[3]); 1074 1075 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 1076 switch (mb[1]) { 1077 case A84_PANIC_RECOVERY: 1078 ql_log(ql_log_info, vha, 0x5019, 1079 "Alert 84XX: panic recovery %04x %04x.\n", 1080 mb[2], mb[3]); 1081 break; 1082 case A84_OP_LOGIN_COMPLETE: 1083 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 1084 ql_log(ql_log_info, vha, 0x501a, 1085 "Alert 84XX: firmware version %x.\n", 1086 ha->cs84xx->op_fw_version); 1087 break; 1088 case A84_DIAG_LOGIN_COMPLETE: 1089 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1090 ql_log(ql_log_info, vha, 0x501b, 1091 "Alert 84XX: diagnostic firmware version %x.\n", 1092 ha->cs84xx->diag_fw_version); 1093 break; 1094 case A84_GOLD_LOGIN_COMPLETE: 1095 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1096 ha->cs84xx->fw_update = 1; 1097 ql_log(ql_log_info, vha, 0x501c, 1098 "Alert 84XX: gold firmware version %x.\n", 1099 ha->cs84xx->gold_fw_version); 1100 break; 1101 default: 1102 ql_log(ql_log_warn, vha, 0x501d, 1103 "Alert 84xx: Invalid Alert %04x %04x %04x.\n", 1104 mb[1], mb[2], mb[3]); 1105 } 1106 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 1107 break; 1108 case MBA_DCBX_START: 1109 ql_dbg(ql_dbg_async, vha, 0x501e, 1110 "DCBX Started -- %04x %04x %04x.\n", 1111 mb[1], mb[2], mb[3]); 1112 break; 1113 case MBA_DCBX_PARAM_UPDATE: 1114 ql_dbg(ql_dbg_async, vha, 0x501f, 1115 "DCBX Parameters Updated -- %04x %04x %04x.\n", 1116 mb[1], mb[2], mb[3]); 1117 break; 1118 case MBA_FCF_CONF_ERR: 1119 ql_dbg(ql_dbg_async, vha, 0x5020, 1120 "FCF Configuration Error -- %04x %04x %04x.\n", 1121 mb[1], mb[2], mb[3]); 1122 break; 1123 case MBA_IDC_NOTIFY: 1124 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) { 1125 mb[4] = RD_REG_WORD(®24->mailbox4); 1126 if (((mb[2] & 0x7fff) == MBC_PORT_RESET || 1127 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) && 1128 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) { 1129 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 1130 /* 1131 * Extend loop down timer since port is active. 1132 */ 1133 if (atomic_read(&vha->loop_state) == LOOP_DOWN) 1134 atomic_set(&vha->loop_down_timer, 1135 LOOP_DOWN_TIME); 1136 qla2xxx_wake_dpc(vha); 1137 } 1138 } 1139 case MBA_IDC_COMPLETE: 1140 if (ha->notify_lb_portup_comp && !vha->vp_idx) 1141 complete(&ha->lb_portup_comp); 1142 /* Fallthru */ 1143 case MBA_IDC_TIME_EXT: 1144 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || 1145 IS_QLA8044(ha)) 1146 qla81xx_idc_event(vha, mb[0], mb[1]); 1147 break; 1148 1149 case MBA_IDC_AEN: 1150 mb[4] = RD_REG_WORD(®24->mailbox4); 1151 mb[5] = RD_REG_WORD(®24->mailbox5); 1152 mb[6] = RD_REG_WORD(®24->mailbox6); 1153 mb[7] = RD_REG_WORD(®24->mailbox7); 1154 qla83xx_handle_8200_aen(vha, mb); 1155 break; 1156 1157 case MBA_DPORT_DIAGNOSTICS: 1158 ql_dbg(ql_dbg_async, vha, 0x5052, 1159 "D-Port Diagnostics: %04x result=%s\n", 1160 mb[0], 1161 mb[1] == 0 ? "start" : 1162 mb[1] == 1 ? "done (pass)" : 1163 mb[1] == 2 ? "done (error)" : "other"); 1164 break; 1165 1166 case MBA_TEMPERATURE_ALERT: 1167 ql_dbg(ql_dbg_async, vha, 0x505e, 1168 "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]); 1169 if (mb[1] == 0x12) 1170 schedule_work(&ha->board_disable); 1171 break; 1172 1173 default: 1174 ql_dbg(ql_dbg_async, vha, 0x5057, 1175 "Unknown AEN:%04x %04x %04x %04x\n", 1176 mb[0], mb[1], mb[2], mb[3]); 1177 } 1178 1179 qlt_async_event(mb[0], vha, mb); 1180 1181 if (!vha->vp_idx && ha->num_vhosts) 1182 qla2x00_alert_all_vps(rsp, mb); 1183 } 1184 1185 /** 1186 * qla2x00_process_completed_request() - Process a Fast Post response. 1187 * @ha: SCSI driver HA context 1188 * @index: SRB index 1189 */ 1190 void 1191 qla2x00_process_completed_request(struct scsi_qla_host *vha, 1192 struct req_que *req, uint32_t index) 1193 { 1194 srb_t *sp; 1195 struct qla_hw_data *ha = vha->hw; 1196 1197 /* Validate handle. */ 1198 if (index >= req->num_outstanding_cmds) { 1199 ql_log(ql_log_warn, vha, 0x3014, 1200 "Invalid SCSI command index (%x).\n", index); 1201 1202 if (IS_P3P_TYPE(ha)) 1203 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1204 else 1205 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1206 return; 1207 } 1208 1209 sp = req->outstanding_cmds[index]; 1210 if (sp) { 1211 /* Free outstanding command slot. */ 1212 req->outstanding_cmds[index] = NULL; 1213 1214 /* Save ISP completion status */ 1215 sp->done(ha, sp, DID_OK << 16); 1216 } else { 1217 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n"); 1218 1219 if (IS_P3P_TYPE(ha)) 1220 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1221 else 1222 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1223 } 1224 } 1225 1226 srb_t * 1227 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 1228 struct req_que *req, void *iocb) 1229 { 1230 struct qla_hw_data *ha = vha->hw; 1231 sts_entry_t *pkt = iocb; 1232 srb_t *sp = NULL; 1233 uint16_t index; 1234 1235 index = LSW(pkt->handle); 1236 if (index >= req->num_outstanding_cmds) { 1237 ql_log(ql_log_warn, vha, 0x5031, 1238 "Invalid command index (%x).\n", index); 1239 if (IS_P3P_TYPE(ha)) 1240 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1241 else 1242 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1243 goto done; 1244 } 1245 sp = req->outstanding_cmds[index]; 1246 if (!sp) { 1247 ql_log(ql_log_warn, vha, 0x5032, 1248 "Invalid completion handle (%x) -- timed-out.\n", index); 1249 return sp; 1250 } 1251 if (sp->handle != index) { 1252 ql_log(ql_log_warn, vha, 0x5033, 1253 "SRB handle (%x) mismatch %x.\n", sp->handle, index); 1254 return NULL; 1255 } 1256 1257 req->outstanding_cmds[index] = NULL; 1258 1259 done: 1260 return sp; 1261 } 1262 1263 static void 1264 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 1265 struct mbx_entry *mbx) 1266 { 1267 const char func[] = "MBX-IOCB"; 1268 const char *type; 1269 fc_port_t *fcport; 1270 srb_t *sp; 1271 struct srb_iocb *lio; 1272 uint16_t *data; 1273 uint16_t status; 1274 1275 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 1276 if (!sp) 1277 return; 1278 1279 lio = &sp->u.iocb_cmd; 1280 type = sp->name; 1281 fcport = sp->fcport; 1282 data = lio->u.logio.data; 1283 1284 data[0] = MBS_COMMAND_ERROR; 1285 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1286 QLA_LOGIO_LOGIN_RETRIED : 0; 1287 if (mbx->entry_status) { 1288 ql_dbg(ql_dbg_async, vha, 0x5043, 1289 "Async-%s error entry - hdl=%x portid=%02x%02x%02x " 1290 "entry-status=%x status=%x state-flag=%x " 1291 "status-flags=%x.\n", type, sp->handle, 1292 fcport->d_id.b.domain, fcport->d_id.b.area, 1293 fcport->d_id.b.al_pa, mbx->entry_status, 1294 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 1295 le16_to_cpu(mbx->status_flags)); 1296 1297 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029, 1298 (uint8_t *)mbx, sizeof(*mbx)); 1299 1300 goto logio_done; 1301 } 1302 1303 status = le16_to_cpu(mbx->status); 1304 if (status == 0x30 && sp->type == SRB_LOGIN_CMD && 1305 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 1306 status = 0; 1307 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 1308 ql_dbg(ql_dbg_async, vha, 0x5045, 1309 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n", 1310 type, sp->handle, fcport->d_id.b.domain, 1311 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1312 le16_to_cpu(mbx->mb1)); 1313 1314 data[0] = MBS_COMMAND_COMPLETE; 1315 if (sp->type == SRB_LOGIN_CMD) { 1316 fcport->port_type = FCT_TARGET; 1317 if (le16_to_cpu(mbx->mb1) & BIT_0) 1318 fcport->port_type = FCT_INITIATOR; 1319 else if (le16_to_cpu(mbx->mb1) & BIT_1) 1320 fcport->flags |= FCF_FCP2_DEVICE; 1321 } 1322 goto logio_done; 1323 } 1324 1325 data[0] = le16_to_cpu(mbx->mb0); 1326 switch (data[0]) { 1327 case MBS_PORT_ID_USED: 1328 data[1] = le16_to_cpu(mbx->mb1); 1329 break; 1330 case MBS_LOOP_ID_USED: 1331 break; 1332 default: 1333 data[0] = MBS_COMMAND_ERROR; 1334 break; 1335 } 1336 1337 ql_log(ql_log_warn, vha, 0x5046, 1338 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x " 1339 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle, 1340 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, 1341 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 1342 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 1343 le16_to_cpu(mbx->mb7)); 1344 1345 logio_done: 1346 sp->done(vha, sp, 0); 1347 } 1348 1349 static void 1350 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1351 sts_entry_t *pkt, int iocb_type) 1352 { 1353 const char func[] = "CT_IOCB"; 1354 const char *type; 1355 srb_t *sp; 1356 struct bsg_job *bsg_job; 1357 struct fc_bsg_reply *bsg_reply; 1358 uint16_t comp_status; 1359 int res; 1360 1361 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1362 if (!sp) 1363 return; 1364 1365 bsg_job = sp->u.bsg_job; 1366 bsg_reply = bsg_job->reply; 1367 1368 type = "ct pass-through"; 1369 1370 comp_status = le16_to_cpu(pkt->comp_status); 1371 1372 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1373 * fc payload to the caller 1374 */ 1375 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1376 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1377 1378 if (comp_status != CS_COMPLETE) { 1379 if (comp_status == CS_DATA_UNDERRUN) { 1380 res = DID_OK << 16; 1381 bsg_reply->reply_payload_rcv_len = 1382 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1383 1384 ql_log(ql_log_warn, vha, 0x5048, 1385 "CT pass-through-%s error " 1386 "comp_status-status=0x%x total_byte = 0x%x.\n", 1387 type, comp_status, 1388 bsg_reply->reply_payload_rcv_len); 1389 } else { 1390 ql_log(ql_log_warn, vha, 0x5049, 1391 "CT pass-through-%s error " 1392 "comp_status-status=0x%x.\n", type, comp_status); 1393 res = DID_ERROR << 16; 1394 bsg_reply->reply_payload_rcv_len = 0; 1395 } 1396 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035, 1397 (uint8_t *)pkt, sizeof(*pkt)); 1398 } else { 1399 res = DID_OK << 16; 1400 bsg_reply->reply_payload_rcv_len = 1401 bsg_job->reply_payload.payload_len; 1402 bsg_job->reply_len = 0; 1403 } 1404 1405 sp->done(vha, sp, res); 1406 } 1407 1408 static void 1409 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1410 struct sts_entry_24xx *pkt, int iocb_type) 1411 { 1412 const char func[] = "ELS_CT_IOCB"; 1413 const char *type; 1414 srb_t *sp; 1415 struct bsg_job *bsg_job; 1416 struct fc_bsg_reply *bsg_reply; 1417 uint16_t comp_status; 1418 uint32_t fw_status[3]; 1419 uint8_t* fw_sts_ptr; 1420 int res; 1421 1422 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1423 if (!sp) 1424 return; 1425 bsg_job = sp->u.bsg_job; 1426 bsg_reply = bsg_job->reply; 1427 1428 type = NULL; 1429 switch (sp->type) { 1430 case SRB_ELS_CMD_RPT: 1431 case SRB_ELS_CMD_HST: 1432 type = "els"; 1433 break; 1434 case SRB_CT_CMD: 1435 type = "ct pass-through"; 1436 break; 1437 case SRB_ELS_DCMD: 1438 type = "Driver ELS logo"; 1439 ql_dbg(ql_dbg_user, vha, 0x5047, 1440 "Completing %s: (%p) type=%d.\n", type, sp, sp->type); 1441 sp->done(vha, sp, 0); 1442 return; 1443 default: 1444 ql_dbg(ql_dbg_user, vha, 0x503e, 1445 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type); 1446 return; 1447 } 1448 1449 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1450 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1451 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1452 1453 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1454 * fc payload to the caller 1455 */ 1456 bsg_reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1457 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1458 1459 if (comp_status != CS_COMPLETE) { 1460 if (comp_status == CS_DATA_UNDERRUN) { 1461 res = DID_OK << 16; 1462 bsg_reply->reply_payload_rcv_len = 1463 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count); 1464 1465 ql_dbg(ql_dbg_user, vha, 0x503f, 1466 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1467 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1468 type, sp->handle, comp_status, fw_status[1], fw_status[2], 1469 le16_to_cpu(((struct els_sts_entry_24xx *) 1470 pkt)->total_byte_count)); 1471 fw_sts_ptr = ((uint8_t*)scsi_req(bsg_job->req)->sense) + 1472 sizeof(struct fc_bsg_reply); 1473 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1474 } 1475 else { 1476 ql_dbg(ql_dbg_user, vha, 0x5040, 1477 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1478 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1479 type, sp->handle, comp_status, 1480 le16_to_cpu(((struct els_sts_entry_24xx *) 1481 pkt)->error_subcode_1), 1482 le16_to_cpu(((struct els_sts_entry_24xx *) 1483 pkt)->error_subcode_2)); 1484 res = DID_ERROR << 16; 1485 bsg_reply->reply_payload_rcv_len = 0; 1486 fw_sts_ptr = ((uint8_t*)scsi_req(bsg_job->req)->sense) + 1487 sizeof(struct fc_bsg_reply); 1488 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1489 } 1490 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056, 1491 (uint8_t *)pkt, sizeof(*pkt)); 1492 } 1493 else { 1494 res = DID_OK << 16; 1495 bsg_reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1496 bsg_job->reply_len = 0; 1497 } 1498 1499 sp->done(vha, sp, res); 1500 } 1501 1502 static void 1503 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1504 struct logio_entry_24xx *logio) 1505 { 1506 const char func[] = "LOGIO-IOCB"; 1507 const char *type; 1508 fc_port_t *fcport; 1509 srb_t *sp; 1510 struct srb_iocb *lio; 1511 uint16_t *data; 1512 uint32_t iop[2]; 1513 1514 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1515 if (!sp) 1516 return; 1517 1518 lio = &sp->u.iocb_cmd; 1519 type = sp->name; 1520 fcport = sp->fcport; 1521 data = lio->u.logio.data; 1522 1523 data[0] = MBS_COMMAND_ERROR; 1524 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1525 QLA_LOGIO_LOGIN_RETRIED : 0; 1526 if (logio->entry_status) { 1527 ql_log(ql_log_warn, fcport->vha, 0x5034, 1528 "Async-%s error entry - hdl=%x" 1529 "portid=%02x%02x%02x entry-status=%x.\n", 1530 type, sp->handle, fcport->d_id.b.domain, 1531 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1532 logio->entry_status); 1533 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d, 1534 (uint8_t *)logio, sizeof(*logio)); 1535 1536 goto logio_done; 1537 } 1538 1539 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1540 ql_dbg(ql_dbg_async, fcport->vha, 0x5036, 1541 "Async-%s complete - hdl=%x portid=%02x%02x%02x " 1542 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1543 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1544 le32_to_cpu(logio->io_parameter[0])); 1545 1546 data[0] = MBS_COMMAND_COMPLETE; 1547 if (sp->type != SRB_LOGIN_CMD) 1548 goto logio_done; 1549 1550 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1551 if (iop[0] & BIT_4) { 1552 fcport->port_type = FCT_TARGET; 1553 if (iop[0] & BIT_8) 1554 fcport->flags |= FCF_FCP2_DEVICE; 1555 } else if (iop[0] & BIT_5) 1556 fcport->port_type = FCT_INITIATOR; 1557 1558 if (iop[0] & BIT_7) 1559 fcport->flags |= FCF_CONF_COMP_SUPPORTED; 1560 1561 if (logio->io_parameter[7] || logio->io_parameter[8]) 1562 fcport->supported_classes |= FC_COS_CLASS2; 1563 if (logio->io_parameter[9] || logio->io_parameter[10]) 1564 fcport->supported_classes |= FC_COS_CLASS3; 1565 1566 goto logio_done; 1567 } 1568 1569 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1570 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1571 switch (iop[0]) { 1572 case LSC_SCODE_PORTID_USED: 1573 data[0] = MBS_PORT_ID_USED; 1574 data[1] = LSW(iop[1]); 1575 break; 1576 case LSC_SCODE_NPORT_USED: 1577 data[0] = MBS_LOOP_ID_USED; 1578 break; 1579 default: 1580 data[0] = MBS_COMMAND_ERROR; 1581 break; 1582 } 1583 1584 ql_dbg(ql_dbg_async, fcport->vha, 0x5037, 1585 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x " 1586 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1587 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1588 le16_to_cpu(logio->comp_status), 1589 le32_to_cpu(logio->io_parameter[0]), 1590 le32_to_cpu(logio->io_parameter[1])); 1591 1592 logio_done: 1593 sp->done(vha, sp, 0); 1594 } 1595 1596 static void 1597 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk) 1598 { 1599 const char func[] = "TMF-IOCB"; 1600 const char *type; 1601 fc_port_t *fcport; 1602 srb_t *sp; 1603 struct srb_iocb *iocb; 1604 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; 1605 1606 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); 1607 if (!sp) 1608 return; 1609 1610 iocb = &sp->u.iocb_cmd; 1611 type = sp->name; 1612 fcport = sp->fcport; 1613 iocb->u.tmf.data = QLA_SUCCESS; 1614 1615 if (sts->entry_status) { 1616 ql_log(ql_log_warn, fcport->vha, 0x5038, 1617 "Async-%s error - hdl=%x entry-status(%x).\n", 1618 type, sp->handle, sts->entry_status); 1619 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1620 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) { 1621 ql_log(ql_log_warn, fcport->vha, 0x5039, 1622 "Async-%s error - hdl=%x completion status(%x).\n", 1623 type, sp->handle, sts->comp_status); 1624 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1625 } else if ((le16_to_cpu(sts->scsi_status) & 1626 SS_RESPONSE_INFO_LEN_VALID)) { 1627 if (le32_to_cpu(sts->rsp_data_len) < 4) { 1628 ql_log(ql_log_warn, fcport->vha, 0x503b, 1629 "Async-%s error - hdl=%x not enough response(%d).\n", 1630 type, sp->handle, sts->rsp_data_len); 1631 } else if (sts->data[3]) { 1632 ql_log(ql_log_warn, fcport->vha, 0x503c, 1633 "Async-%s error - hdl=%x response(%x).\n", 1634 type, sp->handle, sts->data[3]); 1635 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1636 } 1637 } 1638 1639 if (iocb->u.tmf.data != QLA_SUCCESS) 1640 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055, 1641 (uint8_t *)sts, sizeof(*sts)); 1642 1643 sp->done(vha, sp, 0); 1644 } 1645 1646 /** 1647 * qla2x00_process_response_queue() - Process response queue entries. 1648 * @ha: SCSI driver HA context 1649 */ 1650 void 1651 qla2x00_process_response_queue(struct rsp_que *rsp) 1652 { 1653 struct scsi_qla_host *vha; 1654 struct qla_hw_data *ha = rsp->hw; 1655 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1656 sts_entry_t *pkt; 1657 uint16_t handle_cnt; 1658 uint16_t cnt; 1659 1660 vha = pci_get_drvdata(ha->pdev); 1661 1662 if (!vha->flags.online) 1663 return; 1664 1665 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1666 pkt = (sts_entry_t *)rsp->ring_ptr; 1667 1668 rsp->ring_index++; 1669 if (rsp->ring_index == rsp->length) { 1670 rsp->ring_index = 0; 1671 rsp->ring_ptr = rsp->ring; 1672 } else { 1673 rsp->ring_ptr++; 1674 } 1675 1676 if (pkt->entry_status != 0) { 1677 qla2x00_error_entry(vha, rsp, pkt); 1678 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1679 wmb(); 1680 continue; 1681 } 1682 1683 switch (pkt->entry_type) { 1684 case STATUS_TYPE: 1685 qla2x00_status_entry(vha, rsp, pkt); 1686 break; 1687 case STATUS_TYPE_21: 1688 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 1689 for (cnt = 0; cnt < handle_cnt; cnt++) { 1690 qla2x00_process_completed_request(vha, rsp->req, 1691 ((sts21_entry_t *)pkt)->handle[cnt]); 1692 } 1693 break; 1694 case STATUS_TYPE_22: 1695 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 1696 for (cnt = 0; cnt < handle_cnt; cnt++) { 1697 qla2x00_process_completed_request(vha, rsp->req, 1698 ((sts22_entry_t *)pkt)->handle[cnt]); 1699 } 1700 break; 1701 case STATUS_CONT_TYPE: 1702 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1703 break; 1704 case MBX_IOCB_TYPE: 1705 qla2x00_mbx_iocb_entry(vha, rsp->req, 1706 (struct mbx_entry *)pkt); 1707 break; 1708 case CT_IOCB_TYPE: 1709 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 1710 break; 1711 default: 1712 /* Type Not Supported. */ 1713 ql_log(ql_log_warn, vha, 0x504a, 1714 "Received unknown response pkt type %x " 1715 "entry status=%x.\n", 1716 pkt->entry_type, pkt->entry_status); 1717 break; 1718 } 1719 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1720 wmb(); 1721 } 1722 1723 /* Adjust ring index */ 1724 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); 1725 } 1726 1727 static inline void 1728 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len, 1729 uint32_t sense_len, struct rsp_que *rsp, int res) 1730 { 1731 struct scsi_qla_host *vha = sp->fcport->vha; 1732 struct scsi_cmnd *cp = GET_CMD_SP(sp); 1733 uint32_t track_sense_len; 1734 1735 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 1736 sense_len = SCSI_SENSE_BUFFERSIZE; 1737 1738 SET_CMD_SENSE_LEN(sp, sense_len); 1739 SET_CMD_SENSE_PTR(sp, cp->sense_buffer); 1740 track_sense_len = sense_len; 1741 1742 if (sense_len > par_sense_len) 1743 sense_len = par_sense_len; 1744 1745 memcpy(cp->sense_buffer, sense_data, sense_len); 1746 1747 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len); 1748 track_sense_len -= sense_len; 1749 SET_CMD_SENSE_LEN(sp, track_sense_len); 1750 1751 if (track_sense_len != 0) { 1752 rsp->status_srb = sp; 1753 cp->result = res; 1754 } 1755 1756 if (sense_len) { 1757 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c, 1758 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n", 1759 sp->fcport->vha->host_no, cp->device->id, cp->device->lun, 1760 cp); 1761 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b, 1762 cp->sense_buffer, sense_len); 1763 } 1764 } 1765 1766 struct scsi_dif_tuple { 1767 __be16 guard; /* Checksum */ 1768 __be16 app_tag; /* APPL identifier */ 1769 __be32 ref_tag; /* Target LBA or indirect LBA */ 1770 }; 1771 1772 /* 1773 * Checks the guard or meta-data for the type of error 1774 * detected by the HBA. In case of errors, we set the 1775 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1776 * to indicate to the kernel that the HBA detected error. 1777 */ 1778 static inline int 1779 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1780 { 1781 struct scsi_qla_host *vha = sp->fcport->vha; 1782 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1783 uint8_t *ap = &sts24->data[12]; 1784 uint8_t *ep = &sts24->data[20]; 1785 uint32_t e_ref_tag, a_ref_tag; 1786 uint16_t e_app_tag, a_app_tag; 1787 uint16_t e_guard, a_guard; 1788 1789 /* 1790 * swab32 of the "data" field in the beginning of qla2x00_status_entry() 1791 * would make guard field appear at offset 2 1792 */ 1793 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2)); 1794 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0)); 1795 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4)); 1796 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2)); 1797 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0)); 1798 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4)); 1799 1800 ql_dbg(ql_dbg_io, vha, 0x3023, 1801 "iocb(s) %p Returned STATUS.\n", sts24); 1802 1803 ql_dbg(ql_dbg_io, vha, 0x3024, 1804 "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1805 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1806 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n", 1807 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1808 a_app_tag, e_app_tag, a_guard, e_guard); 1809 1810 /* 1811 * Ignore sector if: 1812 * For type 3: ref & app tag is all 'f's 1813 * For type 0,1,2: app tag is all 'f's 1814 */ 1815 if ((a_app_tag == 0xffff) && 1816 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) || 1817 (a_ref_tag == 0xffffffff))) { 1818 uint32_t blocks_done, resid; 1819 sector_t lba_s = scsi_get_lba(cmd); 1820 1821 /* 2TB boundary case covered automatically with this */ 1822 blocks_done = e_ref_tag - (uint32_t)lba_s + 1; 1823 1824 resid = scsi_bufflen(cmd) - (blocks_done * 1825 cmd->device->sector_size); 1826 1827 scsi_set_resid(cmd, resid); 1828 cmd->result = DID_OK << 16; 1829 1830 /* Update protection tag */ 1831 if (scsi_prot_sg_count(cmd)) { 1832 uint32_t i, j = 0, k = 0, num_ent; 1833 struct scatterlist *sg; 1834 struct t10_pi_tuple *spt; 1835 1836 /* Patch the corresponding protection tags */ 1837 scsi_for_each_prot_sg(cmd, sg, 1838 scsi_prot_sg_count(cmd), i) { 1839 num_ent = sg_dma_len(sg) / 8; 1840 if (k + num_ent < blocks_done) { 1841 k += num_ent; 1842 continue; 1843 } 1844 j = blocks_done - k - 1; 1845 k = blocks_done; 1846 break; 1847 } 1848 1849 if (k != blocks_done) { 1850 ql_log(ql_log_warn, vha, 0x302f, 1851 "unexpected tag values tag:lba=%x:%llx)\n", 1852 e_ref_tag, (unsigned long long)lba_s); 1853 return 1; 1854 } 1855 1856 spt = page_address(sg_page(sg)) + sg->offset; 1857 spt += j; 1858 1859 spt->app_tag = 0xffff; 1860 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3) 1861 spt->ref_tag = 0xffffffff; 1862 } 1863 1864 return 0; 1865 } 1866 1867 /* check guard */ 1868 if (e_guard != a_guard) { 1869 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1870 0x10, 0x1); 1871 set_driver_byte(cmd, DRIVER_SENSE); 1872 set_host_byte(cmd, DID_ABORT); 1873 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1874 return 1; 1875 } 1876 1877 /* check ref tag */ 1878 if (e_ref_tag != a_ref_tag) { 1879 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1880 0x10, 0x3); 1881 set_driver_byte(cmd, DRIVER_SENSE); 1882 set_host_byte(cmd, DID_ABORT); 1883 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1884 return 1; 1885 } 1886 1887 /* check appl tag */ 1888 if (e_app_tag != a_app_tag) { 1889 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1890 0x10, 0x2); 1891 set_driver_byte(cmd, DRIVER_SENSE); 1892 set_host_byte(cmd, DID_ABORT); 1893 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1894 return 1; 1895 } 1896 1897 return 1; 1898 } 1899 1900 static void 1901 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt, 1902 struct req_que *req, uint32_t index) 1903 { 1904 struct qla_hw_data *ha = vha->hw; 1905 srb_t *sp; 1906 uint16_t comp_status; 1907 uint16_t scsi_status; 1908 uint16_t thread_id; 1909 uint32_t rval = EXT_STATUS_OK; 1910 struct bsg_job *bsg_job = NULL; 1911 struct fc_bsg_request *bsg_request; 1912 struct fc_bsg_reply *bsg_reply; 1913 sts_entry_t *sts; 1914 struct sts_entry_24xx *sts24; 1915 sts = (sts_entry_t *) pkt; 1916 sts24 = (struct sts_entry_24xx *) pkt; 1917 1918 /* Validate handle. */ 1919 if (index >= req->num_outstanding_cmds) { 1920 ql_log(ql_log_warn, vha, 0x70af, 1921 "Invalid SCSI completion handle 0x%x.\n", index); 1922 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1923 return; 1924 } 1925 1926 sp = req->outstanding_cmds[index]; 1927 if (!sp) { 1928 ql_log(ql_log_warn, vha, 0x70b0, 1929 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n", 1930 req->id, index); 1931 1932 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1933 return; 1934 } 1935 1936 /* Free outstanding command slot. */ 1937 req->outstanding_cmds[index] = NULL; 1938 bsg_job = sp->u.bsg_job; 1939 bsg_request = bsg_job->request; 1940 bsg_reply = bsg_job->reply; 1941 1942 if (IS_FWI2_CAPABLE(ha)) { 1943 comp_status = le16_to_cpu(sts24->comp_status); 1944 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1945 } else { 1946 comp_status = le16_to_cpu(sts->comp_status); 1947 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1948 } 1949 1950 thread_id = bsg_request->rqst_data.h_vendor.vendor_cmd[1]; 1951 switch (comp_status) { 1952 case CS_COMPLETE: 1953 if (scsi_status == 0) { 1954 bsg_reply->reply_payload_rcv_len = 1955 bsg_job->reply_payload.payload_len; 1956 vha->qla_stats.input_bytes += 1957 bsg_reply->reply_payload_rcv_len; 1958 vha->qla_stats.input_requests++; 1959 rval = EXT_STATUS_OK; 1960 } 1961 goto done; 1962 1963 case CS_DATA_OVERRUN: 1964 ql_dbg(ql_dbg_user, vha, 0x70b1, 1965 "Command completed with date overrun thread_id=%d\n", 1966 thread_id); 1967 rval = EXT_STATUS_DATA_OVERRUN; 1968 break; 1969 1970 case CS_DATA_UNDERRUN: 1971 ql_dbg(ql_dbg_user, vha, 0x70b2, 1972 "Command completed with date underrun thread_id=%d\n", 1973 thread_id); 1974 rval = EXT_STATUS_DATA_UNDERRUN; 1975 break; 1976 case CS_BIDIR_RD_OVERRUN: 1977 ql_dbg(ql_dbg_user, vha, 0x70b3, 1978 "Command completed with read data overrun thread_id=%d\n", 1979 thread_id); 1980 rval = EXT_STATUS_DATA_OVERRUN; 1981 break; 1982 1983 case CS_BIDIR_RD_WR_OVERRUN: 1984 ql_dbg(ql_dbg_user, vha, 0x70b4, 1985 "Command completed with read and write data overrun " 1986 "thread_id=%d\n", thread_id); 1987 rval = EXT_STATUS_DATA_OVERRUN; 1988 break; 1989 1990 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN: 1991 ql_dbg(ql_dbg_user, vha, 0x70b5, 1992 "Command completed with read data over and write data " 1993 "underrun thread_id=%d\n", thread_id); 1994 rval = EXT_STATUS_DATA_OVERRUN; 1995 break; 1996 1997 case CS_BIDIR_RD_UNDERRUN: 1998 ql_dbg(ql_dbg_user, vha, 0x70b6, 1999 "Command completed with read data data underrun " 2000 "thread_id=%d\n", thread_id); 2001 rval = EXT_STATUS_DATA_UNDERRUN; 2002 break; 2003 2004 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN: 2005 ql_dbg(ql_dbg_user, vha, 0x70b7, 2006 "Command completed with read data under and write data " 2007 "overrun thread_id=%d\n", thread_id); 2008 rval = EXT_STATUS_DATA_UNDERRUN; 2009 break; 2010 2011 case CS_BIDIR_RD_WR_UNDERRUN: 2012 ql_dbg(ql_dbg_user, vha, 0x70b8, 2013 "Command completed with read and write data underrun " 2014 "thread_id=%d\n", thread_id); 2015 rval = EXT_STATUS_DATA_UNDERRUN; 2016 break; 2017 2018 case CS_BIDIR_DMA: 2019 ql_dbg(ql_dbg_user, vha, 0x70b9, 2020 "Command completed with data DMA error thread_id=%d\n", 2021 thread_id); 2022 rval = EXT_STATUS_DMA_ERR; 2023 break; 2024 2025 case CS_TIMEOUT: 2026 ql_dbg(ql_dbg_user, vha, 0x70ba, 2027 "Command completed with timeout thread_id=%d\n", 2028 thread_id); 2029 rval = EXT_STATUS_TIMEOUT; 2030 break; 2031 default: 2032 ql_dbg(ql_dbg_user, vha, 0x70bb, 2033 "Command completed with completion status=0x%x " 2034 "thread_id=%d\n", comp_status, thread_id); 2035 rval = EXT_STATUS_ERR; 2036 break; 2037 } 2038 bsg_reply->reply_payload_rcv_len = 0; 2039 2040 done: 2041 /* Return the vendor specific reply to API */ 2042 bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = rval; 2043 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 2044 /* Always return DID_OK, bsg will send the vendor specific response 2045 * in this case only */ 2046 sp->done(vha, sp, (DID_OK << 6)); 2047 2048 } 2049 2050 /** 2051 * qla2x00_status_entry() - Process a Status IOCB entry. 2052 * @ha: SCSI driver HA context 2053 * @pkt: Entry pointer 2054 */ 2055 static void 2056 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 2057 { 2058 srb_t *sp; 2059 fc_port_t *fcport; 2060 struct scsi_cmnd *cp; 2061 sts_entry_t *sts; 2062 struct sts_entry_24xx *sts24; 2063 uint16_t comp_status; 2064 uint16_t scsi_status; 2065 uint16_t ox_id; 2066 uint8_t lscsi_status; 2067 int32_t resid; 2068 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 2069 fw_resid_len; 2070 uint8_t *rsp_info, *sense_data; 2071 struct qla_hw_data *ha = vha->hw; 2072 uint32_t handle; 2073 uint16_t que; 2074 struct req_que *req; 2075 int logit = 1; 2076 int res = 0; 2077 uint16_t state_flags = 0; 2078 uint16_t retry_delay = 0; 2079 2080 sts = (sts_entry_t *) pkt; 2081 sts24 = (struct sts_entry_24xx *) pkt; 2082 if (IS_FWI2_CAPABLE(ha)) { 2083 comp_status = le16_to_cpu(sts24->comp_status); 2084 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 2085 state_flags = le16_to_cpu(sts24->state_flags); 2086 } else { 2087 comp_status = le16_to_cpu(sts->comp_status); 2088 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 2089 } 2090 handle = (uint32_t) LSW(sts->handle); 2091 que = MSW(sts->handle); 2092 req = ha->req_q_map[que]; 2093 2094 /* Check for invalid queue pointer */ 2095 if (req == NULL || 2096 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) { 2097 ql_dbg(ql_dbg_io, vha, 0x3059, 2098 "Invalid status handle (0x%x): Bad req pointer. req=%p, " 2099 "que=%u.\n", sts->handle, req, que); 2100 return; 2101 } 2102 2103 /* Validate handle. */ 2104 if (handle < req->num_outstanding_cmds) { 2105 sp = req->outstanding_cmds[handle]; 2106 if (!sp) { 2107 ql_dbg(ql_dbg_io, vha, 0x3075, 2108 "%s(%ld): Already returned command for status handle (0x%x).\n", 2109 __func__, vha->host_no, sts->handle); 2110 return; 2111 } 2112 } else { 2113 ql_dbg(ql_dbg_io, vha, 0x3017, 2114 "Invalid status handle, out of range (0x%x).\n", 2115 sts->handle); 2116 2117 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 2118 if (IS_P3P_TYPE(ha)) 2119 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 2120 else 2121 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2122 qla2xxx_wake_dpc(vha); 2123 } 2124 return; 2125 } 2126 2127 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) { 2128 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle); 2129 return; 2130 } 2131 2132 /* Task Management completion. */ 2133 if (sp->type == SRB_TM_CMD) { 2134 qla24xx_tm_iocb_entry(vha, req, pkt); 2135 return; 2136 } 2137 2138 /* Fast path completion. */ 2139 if (comp_status == CS_COMPLETE && scsi_status == 0) { 2140 qla2x00_process_completed_request(vha, req, handle); 2141 2142 return; 2143 } 2144 2145 req->outstanding_cmds[handle] = NULL; 2146 cp = GET_CMD_SP(sp); 2147 if (cp == NULL) { 2148 ql_dbg(ql_dbg_io, vha, 0x3018, 2149 "Command already returned (0x%x/%p).\n", 2150 sts->handle, sp); 2151 2152 return; 2153 } 2154 2155 lscsi_status = scsi_status & STATUS_MASK; 2156 2157 fcport = sp->fcport; 2158 2159 ox_id = 0; 2160 sense_len = par_sense_len = rsp_info_len = resid_len = 2161 fw_resid_len = 0; 2162 if (IS_FWI2_CAPABLE(ha)) { 2163 if (scsi_status & SS_SENSE_LEN_VALID) 2164 sense_len = le32_to_cpu(sts24->sense_len); 2165 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2166 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 2167 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 2168 resid_len = le32_to_cpu(sts24->rsp_residual_count); 2169 if (comp_status == CS_DATA_UNDERRUN) 2170 fw_resid_len = le32_to_cpu(sts24->residual_len); 2171 rsp_info = sts24->data; 2172 sense_data = sts24->data; 2173 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 2174 ox_id = le16_to_cpu(sts24->ox_id); 2175 par_sense_len = sizeof(sts24->data); 2176 /* Valid values of the retry delay timer are 0x1-0xffef */ 2177 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) 2178 retry_delay = sts24->retry_delay; 2179 } else { 2180 if (scsi_status & SS_SENSE_LEN_VALID) 2181 sense_len = le16_to_cpu(sts->req_sense_length); 2182 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2183 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 2184 resid_len = le32_to_cpu(sts->residual_length); 2185 rsp_info = sts->rsp_info; 2186 sense_data = sts->req_sense_data; 2187 par_sense_len = sizeof(sts->req_sense_data); 2188 } 2189 2190 /* Check for any FCP transport errors. */ 2191 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 2192 /* Sense data lies beyond any FCP RESPONSE data. */ 2193 if (IS_FWI2_CAPABLE(ha)) { 2194 sense_data += rsp_info_len; 2195 par_sense_len -= rsp_info_len; 2196 } 2197 if (rsp_info_len > 3 && rsp_info[3]) { 2198 ql_dbg(ql_dbg_io, fcport->vha, 0x3019, 2199 "FCP I/O protocol failure (0x%x/0x%x).\n", 2200 rsp_info_len, rsp_info[3]); 2201 2202 res = DID_BUS_BUSY << 16; 2203 goto out; 2204 } 2205 } 2206 2207 /* Check for overrun. */ 2208 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 2209 scsi_status & SS_RESIDUAL_OVER) 2210 comp_status = CS_DATA_OVERRUN; 2211 2212 /* 2213 * Check retry_delay_timer value if we receive a busy or 2214 * queue full. 2215 */ 2216 if (lscsi_status == SAM_STAT_TASK_SET_FULL || 2217 lscsi_status == SAM_STAT_BUSY) 2218 qla2x00_set_retry_delay_timestamp(fcport, retry_delay); 2219 2220 /* 2221 * Based on Host and scsi status generate status code for Linux 2222 */ 2223 switch (comp_status) { 2224 case CS_COMPLETE: 2225 case CS_QUEUE_FULL: 2226 if (scsi_status == 0) { 2227 res = DID_OK << 16; 2228 break; 2229 } 2230 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 2231 resid = resid_len; 2232 scsi_set_resid(cp, resid); 2233 2234 if (!lscsi_status && 2235 ((unsigned)(scsi_bufflen(cp) - resid) < 2236 cp->underflow)) { 2237 ql_dbg(ql_dbg_io, fcport->vha, 0x301a, 2238 "Mid-layer underflow " 2239 "detected (0x%x of 0x%x bytes).\n", 2240 resid, scsi_bufflen(cp)); 2241 2242 res = DID_ERROR << 16; 2243 break; 2244 } 2245 } 2246 res = DID_OK << 16 | lscsi_status; 2247 2248 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2249 ql_dbg(ql_dbg_io, fcport->vha, 0x301b, 2250 "QUEUE FULL detected.\n"); 2251 break; 2252 } 2253 logit = 0; 2254 if (lscsi_status != SS_CHECK_CONDITION) 2255 break; 2256 2257 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2258 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2259 break; 2260 2261 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 2262 rsp, res); 2263 break; 2264 2265 case CS_DATA_UNDERRUN: 2266 /* Use F/W calculated residual length. */ 2267 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 2268 scsi_set_resid(cp, resid); 2269 if (scsi_status & SS_RESIDUAL_UNDER) { 2270 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 2271 ql_dbg(ql_dbg_io, fcport->vha, 0x301d, 2272 "Dropped frame(s) detected " 2273 "(0x%x of 0x%x bytes).\n", 2274 resid, scsi_bufflen(cp)); 2275 2276 res = DID_ERROR << 16 | lscsi_status; 2277 goto check_scsi_status; 2278 } 2279 2280 if (!lscsi_status && 2281 ((unsigned)(scsi_bufflen(cp) - resid) < 2282 cp->underflow)) { 2283 ql_dbg(ql_dbg_io, fcport->vha, 0x301e, 2284 "Mid-layer underflow " 2285 "detected (0x%x of 0x%x bytes).\n", 2286 resid, scsi_bufflen(cp)); 2287 2288 res = DID_ERROR << 16; 2289 break; 2290 } 2291 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL && 2292 lscsi_status != SAM_STAT_BUSY) { 2293 /* 2294 * scsi status of task set and busy are considered to be 2295 * task not completed. 2296 */ 2297 2298 ql_dbg(ql_dbg_io, fcport->vha, 0x301f, 2299 "Dropped frame(s) detected (0x%x " 2300 "of 0x%x bytes).\n", resid, 2301 scsi_bufflen(cp)); 2302 2303 res = DID_ERROR << 16 | lscsi_status; 2304 goto check_scsi_status; 2305 } else { 2306 ql_dbg(ql_dbg_io, fcport->vha, 0x3030, 2307 "scsi_status: 0x%x, lscsi_status: 0x%x\n", 2308 scsi_status, lscsi_status); 2309 } 2310 2311 res = DID_OK << 16 | lscsi_status; 2312 logit = 0; 2313 2314 check_scsi_status: 2315 /* 2316 * Check to see if SCSI Status is non zero. If so report SCSI 2317 * Status. 2318 */ 2319 if (lscsi_status != 0) { 2320 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2321 ql_dbg(ql_dbg_io, fcport->vha, 0x3020, 2322 "QUEUE FULL detected.\n"); 2323 logit = 1; 2324 break; 2325 } 2326 if (lscsi_status != SS_CHECK_CONDITION) 2327 break; 2328 2329 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2330 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2331 break; 2332 2333 qla2x00_handle_sense(sp, sense_data, par_sense_len, 2334 sense_len, rsp, res); 2335 } 2336 break; 2337 2338 case CS_PORT_LOGGED_OUT: 2339 case CS_PORT_CONFIG_CHG: 2340 case CS_PORT_BUSY: 2341 case CS_INCOMPLETE: 2342 case CS_PORT_UNAVAILABLE: 2343 case CS_TIMEOUT: 2344 case CS_RESET: 2345 2346 /* 2347 * We are going to have the fc class block the rport 2348 * while we try to recover so instruct the mid layer 2349 * to requeue until the class decides how to handle this. 2350 */ 2351 res = DID_TRANSPORT_DISRUPTED << 16; 2352 2353 if (comp_status == CS_TIMEOUT) { 2354 if (IS_FWI2_CAPABLE(ha)) 2355 break; 2356 else if ((le16_to_cpu(sts->status_flags) & 2357 SF_LOGOUT_SENT) == 0) 2358 break; 2359 } 2360 2361 ql_dbg(ql_dbg_io, fcport->vha, 0x3021, 2362 "Port to be marked lost on fcport=%02x%02x%02x, current " 2363 "port state= %s.\n", fcport->d_id.b.domain, 2364 fcport->d_id.b.area, fcport->d_id.b.al_pa, 2365 port_state_str[atomic_read(&fcport->state)]); 2366 2367 if (atomic_read(&fcport->state) == FCS_ONLINE) 2368 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 2369 break; 2370 2371 case CS_ABORTED: 2372 res = DID_RESET << 16; 2373 break; 2374 2375 case CS_DIF_ERROR: 2376 logit = qla2x00_handle_dif_error(sp, sts24); 2377 res = cp->result; 2378 break; 2379 2380 case CS_TRANSPORT: 2381 res = DID_ERROR << 16; 2382 2383 if (!IS_PI_SPLIT_DET_CAPABLE(ha)) 2384 break; 2385 2386 if (state_flags & BIT_4) 2387 scmd_printk(KERN_WARNING, cp, 2388 "Unsupported device '%s' found.\n", 2389 cp->device->vendor); 2390 break; 2391 2392 default: 2393 res = DID_ERROR << 16; 2394 break; 2395 } 2396 2397 out: 2398 if (logit) 2399 ql_dbg(ql_dbg_io, fcport->vha, 0x3022, 2400 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu " 2401 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x " 2402 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n", 2403 comp_status, scsi_status, res, vha->host_no, 2404 cp->device->id, cp->device->lun, fcport->d_id.b.domain, 2405 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id, 2406 cp->cmnd, scsi_bufflen(cp), rsp_info_len, 2407 resid_len, fw_resid_len, sp, cp); 2408 2409 if (rsp->status_srb == NULL) 2410 sp->done(ha, sp, res); 2411 } 2412 2413 /** 2414 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 2415 * @ha: SCSI driver HA context 2416 * @pkt: Entry pointer 2417 * 2418 * Extended sense data. 2419 */ 2420 static void 2421 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 2422 { 2423 uint8_t sense_sz = 0; 2424 struct qla_hw_data *ha = rsp->hw; 2425 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 2426 srb_t *sp = rsp->status_srb; 2427 struct scsi_cmnd *cp; 2428 uint32_t sense_len; 2429 uint8_t *sense_ptr; 2430 2431 if (!sp || !GET_CMD_SENSE_LEN(sp)) 2432 return; 2433 2434 sense_len = GET_CMD_SENSE_LEN(sp); 2435 sense_ptr = GET_CMD_SENSE_PTR(sp); 2436 2437 cp = GET_CMD_SP(sp); 2438 if (cp == NULL) { 2439 ql_log(ql_log_warn, vha, 0x3025, 2440 "cmd is NULL: already returned to OS (sp=%p).\n", sp); 2441 2442 rsp->status_srb = NULL; 2443 return; 2444 } 2445 2446 if (sense_len > sizeof(pkt->data)) 2447 sense_sz = sizeof(pkt->data); 2448 else 2449 sense_sz = sense_len; 2450 2451 /* Move sense data. */ 2452 if (IS_FWI2_CAPABLE(ha)) 2453 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 2454 memcpy(sense_ptr, pkt->data, sense_sz); 2455 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c, 2456 sense_ptr, sense_sz); 2457 2458 sense_len -= sense_sz; 2459 sense_ptr += sense_sz; 2460 2461 SET_CMD_SENSE_PTR(sp, sense_ptr); 2462 SET_CMD_SENSE_LEN(sp, sense_len); 2463 2464 /* Place command on done queue. */ 2465 if (sense_len == 0) { 2466 rsp->status_srb = NULL; 2467 sp->done(ha, sp, cp->result); 2468 } 2469 } 2470 2471 /** 2472 * qla2x00_error_entry() - Process an error entry. 2473 * @ha: SCSI driver HA context 2474 * @pkt: Entry pointer 2475 */ 2476 static void 2477 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 2478 { 2479 srb_t *sp; 2480 struct qla_hw_data *ha = vha->hw; 2481 const char func[] = "ERROR-IOCB"; 2482 uint16_t que = MSW(pkt->handle); 2483 struct req_que *req = NULL; 2484 int res = DID_ERROR << 16; 2485 2486 ql_dbg(ql_dbg_async, vha, 0x502a, 2487 "type of error status in response: 0x%x\n", pkt->entry_status); 2488 2489 if (que >= ha->max_req_queues || !ha->req_q_map[que]) 2490 goto fatal; 2491 2492 req = ha->req_q_map[que]; 2493 2494 if (pkt->entry_status & RF_BUSY) 2495 res = DID_BUS_BUSY << 16; 2496 2497 if (pkt->entry_type == NOTIFY_ACK_TYPE && 2498 pkt->handle == QLA_TGT_SKIP_HANDLE) 2499 return; 2500 2501 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2502 if (sp) { 2503 sp->done(ha, sp, res); 2504 return; 2505 } 2506 fatal: 2507 ql_log(ql_log_warn, vha, 0x5030, 2508 "Error entry - invalid handle/queue (%04x).\n", que); 2509 } 2510 2511 /** 2512 * qla24xx_mbx_completion() - Process mailbox command completions. 2513 * @ha: SCSI driver HA context 2514 * @mb0: Mailbox0 register 2515 */ 2516 static void 2517 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 2518 { 2519 uint16_t cnt; 2520 uint32_t mboxes; 2521 uint16_t __iomem *wptr; 2522 struct qla_hw_data *ha = vha->hw; 2523 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2524 2525 /* Read all mbox registers? */ 2526 mboxes = (1 << ha->mbx_count) - 1; 2527 if (!ha->mcp) 2528 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n"); 2529 else 2530 mboxes = ha->mcp->in_mb; 2531 2532 /* Load return mailbox registers. */ 2533 ha->flags.mbox_int = 1; 2534 ha->mailbox_out[0] = mb0; 2535 mboxes >>= 1; 2536 wptr = (uint16_t __iomem *)®->mailbox1; 2537 2538 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 2539 if (mboxes & BIT_0) 2540 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 2541 2542 mboxes >>= 1; 2543 wptr++; 2544 } 2545 } 2546 2547 static void 2548 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 2549 struct abort_entry_24xx *pkt) 2550 { 2551 const char func[] = "ABT_IOCB"; 2552 srb_t *sp; 2553 struct srb_iocb *abt; 2554 2555 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2556 if (!sp) 2557 return; 2558 2559 abt = &sp->u.iocb_cmd; 2560 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle); 2561 sp->done(vha, sp, 0); 2562 } 2563 2564 /** 2565 * qla24xx_process_response_queue() - Process response queue entries. 2566 * @ha: SCSI driver HA context 2567 */ 2568 void qla24xx_process_response_queue(struct scsi_qla_host *vha, 2569 struct rsp_que *rsp) 2570 { 2571 struct sts_entry_24xx *pkt; 2572 struct qla_hw_data *ha = vha->hw; 2573 2574 if (!vha->flags.online) 2575 return; 2576 2577 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 2578 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 2579 2580 rsp->ring_index++; 2581 if (rsp->ring_index == rsp->length) { 2582 rsp->ring_index = 0; 2583 rsp->ring_ptr = rsp->ring; 2584 } else { 2585 rsp->ring_ptr++; 2586 } 2587 2588 if (pkt->entry_status != 0) { 2589 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 2590 2591 if (qlt_24xx_process_response_error(vha, pkt)) 2592 goto process_err; 2593 2594 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2595 wmb(); 2596 continue; 2597 } 2598 process_err: 2599 2600 switch (pkt->entry_type) { 2601 case STATUS_TYPE: 2602 qla2x00_status_entry(vha, rsp, pkt); 2603 break; 2604 case STATUS_CONT_TYPE: 2605 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 2606 break; 2607 case VP_RPT_ID_IOCB_TYPE: 2608 qla24xx_report_id_acquisition(vha, 2609 (struct vp_rpt_id_entry_24xx *)pkt); 2610 break; 2611 case LOGINOUT_PORT_IOCB_TYPE: 2612 qla24xx_logio_entry(vha, rsp->req, 2613 (struct logio_entry_24xx *)pkt); 2614 break; 2615 case CT_IOCB_TYPE: 2616 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2617 break; 2618 case ELS_IOCB_TYPE: 2619 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2620 break; 2621 case ABTS_RECV_24XX: 2622 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 2623 /* ensure that the ATIO queue is empty */ 2624 qlt_handle_abts_recv(vha, (response_t *)pkt); 2625 break; 2626 } else { 2627 /* drop through */ 2628 qlt_24xx_process_atio_queue(vha, 1); 2629 } 2630 case ABTS_RESP_24XX: 2631 case CTIO_TYPE7: 2632 case NOTIFY_ACK_TYPE: 2633 case CTIO_CRC2: 2634 qlt_response_pkt_all_vps(vha, (response_t *)pkt); 2635 break; 2636 case MARKER_TYPE: 2637 /* Do nothing in this case, this check is to prevent it 2638 * from falling into default case 2639 */ 2640 break; 2641 case ABORT_IOCB_TYPE: 2642 qla24xx_abort_iocb_entry(vha, rsp->req, 2643 (struct abort_entry_24xx *)pkt); 2644 break; 2645 default: 2646 /* Type Not Supported. */ 2647 ql_dbg(ql_dbg_async, vha, 0x5042, 2648 "Received unknown response pkt type %x " 2649 "entry status=%x.\n", 2650 pkt->entry_type, pkt->entry_status); 2651 break; 2652 } 2653 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2654 wmb(); 2655 } 2656 2657 /* Adjust ring index */ 2658 if (IS_P3P_TYPE(ha)) { 2659 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2660 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2661 } else 2662 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2663 } 2664 2665 static void 2666 qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2667 { 2668 int rval; 2669 uint32_t cnt; 2670 struct qla_hw_data *ha = vha->hw; 2671 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2672 2673 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) && 2674 !IS_QLA27XX(ha)) 2675 return; 2676 2677 rval = QLA_SUCCESS; 2678 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2679 RD_REG_DWORD(®->iobase_addr); 2680 WRT_REG_DWORD(®->iobase_window, 0x0001); 2681 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2682 rval == QLA_SUCCESS; cnt--) { 2683 if (cnt) { 2684 WRT_REG_DWORD(®->iobase_window, 0x0001); 2685 udelay(10); 2686 } else 2687 rval = QLA_FUNCTION_TIMEOUT; 2688 } 2689 if (rval == QLA_SUCCESS) 2690 goto next_test; 2691 2692 rval = QLA_SUCCESS; 2693 WRT_REG_DWORD(®->iobase_window, 0x0003); 2694 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2695 rval == QLA_SUCCESS; cnt--) { 2696 if (cnt) { 2697 WRT_REG_DWORD(®->iobase_window, 0x0003); 2698 udelay(10); 2699 } else 2700 rval = QLA_FUNCTION_TIMEOUT; 2701 } 2702 if (rval != QLA_SUCCESS) 2703 goto done; 2704 2705 next_test: 2706 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2707 ql_log(ql_log_info, vha, 0x504c, 2708 "Additional code -- 0x55AA.\n"); 2709 2710 done: 2711 WRT_REG_DWORD(®->iobase_window, 0x0000); 2712 RD_REG_DWORD(®->iobase_window); 2713 } 2714 2715 /** 2716 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx. 2717 * @irq: 2718 * @dev_id: SCSI driver HA context 2719 * 2720 * Called by system whenever the host adapter generates an interrupt. 2721 * 2722 * Returns handled flag. 2723 */ 2724 irqreturn_t 2725 qla24xx_intr_handler(int irq, void *dev_id) 2726 { 2727 scsi_qla_host_t *vha; 2728 struct qla_hw_data *ha; 2729 struct device_reg_24xx __iomem *reg; 2730 int status; 2731 unsigned long iter; 2732 uint32_t stat; 2733 uint32_t hccr; 2734 uint16_t mb[8]; 2735 struct rsp_que *rsp; 2736 unsigned long flags; 2737 2738 rsp = (struct rsp_que *) dev_id; 2739 if (!rsp) { 2740 ql_log(ql_log_info, NULL, 0x5059, 2741 "%s: NULL response queue pointer.\n", __func__); 2742 return IRQ_NONE; 2743 } 2744 2745 ha = rsp->hw; 2746 reg = &ha->iobase->isp24; 2747 status = 0; 2748 2749 if (unlikely(pci_channel_offline(ha->pdev))) 2750 return IRQ_HANDLED; 2751 2752 spin_lock_irqsave(&ha->hardware_lock, flags); 2753 vha = pci_get_drvdata(ha->pdev); 2754 for (iter = 50; iter--; ) { 2755 stat = RD_REG_DWORD(®->host_status); 2756 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2757 break; 2758 if (stat & HSRX_RISC_PAUSED) { 2759 if (unlikely(pci_channel_offline(ha->pdev))) 2760 break; 2761 2762 hccr = RD_REG_DWORD(®->hccr); 2763 2764 ql_log(ql_log_warn, vha, 0x504b, 2765 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2766 hccr); 2767 2768 qla2xxx_check_risc_status(vha); 2769 2770 ha->isp_ops->fw_dump(vha, 1); 2771 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2772 break; 2773 } else if ((stat & HSRX_RISC_INT) == 0) 2774 break; 2775 2776 switch (stat & 0xff) { 2777 case INTR_ROM_MB_SUCCESS: 2778 case INTR_ROM_MB_FAILED: 2779 case INTR_MB_SUCCESS: 2780 case INTR_MB_FAILED: 2781 qla24xx_mbx_completion(vha, MSW(stat)); 2782 status |= MBX_INTERRUPT; 2783 2784 break; 2785 case INTR_ASYNC_EVENT: 2786 mb[0] = MSW(stat); 2787 mb[1] = RD_REG_WORD(®->mailbox1); 2788 mb[2] = RD_REG_WORD(®->mailbox2); 2789 mb[3] = RD_REG_WORD(®->mailbox3); 2790 qla2x00_async_event(vha, rsp, mb); 2791 break; 2792 case INTR_RSP_QUE_UPDATE: 2793 case INTR_RSP_QUE_UPDATE_83XX: 2794 qla24xx_process_response_queue(vha, rsp); 2795 break; 2796 case INTR_ATIO_QUE_UPDATE:{ 2797 unsigned long flags2; 2798 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2799 qlt_24xx_process_atio_queue(vha, 1); 2800 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2801 break; 2802 } 2803 case INTR_ATIO_RSP_QUE_UPDATE: { 2804 unsigned long flags2; 2805 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2806 qlt_24xx_process_atio_queue(vha, 1); 2807 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2808 2809 qla24xx_process_response_queue(vha, rsp); 2810 break; 2811 } 2812 default: 2813 ql_dbg(ql_dbg_async, vha, 0x504f, 2814 "Unrecognized interrupt type (%d).\n", stat * 0xff); 2815 break; 2816 } 2817 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2818 RD_REG_DWORD_RELAXED(®->hccr); 2819 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1))) 2820 ndelay(3500); 2821 } 2822 qla2x00_handle_mbx_completion(ha, status); 2823 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2824 2825 return IRQ_HANDLED; 2826 } 2827 2828 static irqreturn_t 2829 qla24xx_msix_rsp_q(int irq, void *dev_id) 2830 { 2831 struct qla_hw_data *ha; 2832 struct rsp_que *rsp; 2833 struct device_reg_24xx __iomem *reg; 2834 struct scsi_qla_host *vha; 2835 unsigned long flags; 2836 uint32_t stat = 0; 2837 2838 rsp = (struct rsp_que *) dev_id; 2839 if (!rsp) { 2840 ql_log(ql_log_info, NULL, 0x505a, 2841 "%s: NULL response queue pointer.\n", __func__); 2842 return IRQ_NONE; 2843 } 2844 ha = rsp->hw; 2845 reg = &ha->iobase->isp24; 2846 2847 spin_lock_irqsave(&ha->hardware_lock, flags); 2848 2849 vha = pci_get_drvdata(ha->pdev); 2850 /* 2851 * Use host_status register to check to PCI disconnection before we 2852 * we process the response queue. 2853 */ 2854 stat = RD_REG_DWORD(®->host_status); 2855 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2856 goto out; 2857 qla24xx_process_response_queue(vha, rsp); 2858 if (!ha->flags.disable_msix_handshake) { 2859 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2860 RD_REG_DWORD_RELAXED(®->hccr); 2861 } 2862 out: 2863 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2864 2865 return IRQ_HANDLED; 2866 } 2867 2868 static irqreturn_t 2869 qla24xx_msix_default(int irq, void *dev_id) 2870 { 2871 scsi_qla_host_t *vha; 2872 struct qla_hw_data *ha; 2873 struct rsp_que *rsp; 2874 struct device_reg_24xx __iomem *reg; 2875 int status; 2876 uint32_t stat; 2877 uint32_t hccr; 2878 uint16_t mb[8]; 2879 unsigned long flags; 2880 2881 rsp = (struct rsp_que *) dev_id; 2882 if (!rsp) { 2883 ql_log(ql_log_info, NULL, 0x505c, 2884 "%s: NULL response queue pointer.\n", __func__); 2885 return IRQ_NONE; 2886 } 2887 ha = rsp->hw; 2888 reg = &ha->iobase->isp24; 2889 status = 0; 2890 2891 spin_lock_irqsave(&ha->hardware_lock, flags); 2892 vha = pci_get_drvdata(ha->pdev); 2893 do { 2894 stat = RD_REG_DWORD(®->host_status); 2895 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2896 break; 2897 if (stat & HSRX_RISC_PAUSED) { 2898 if (unlikely(pci_channel_offline(ha->pdev))) 2899 break; 2900 2901 hccr = RD_REG_DWORD(®->hccr); 2902 2903 ql_log(ql_log_info, vha, 0x5050, 2904 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2905 hccr); 2906 2907 qla2xxx_check_risc_status(vha); 2908 2909 ha->isp_ops->fw_dump(vha, 1); 2910 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2911 break; 2912 } else if ((stat & HSRX_RISC_INT) == 0) 2913 break; 2914 2915 switch (stat & 0xff) { 2916 case INTR_ROM_MB_SUCCESS: 2917 case INTR_ROM_MB_FAILED: 2918 case INTR_MB_SUCCESS: 2919 case INTR_MB_FAILED: 2920 qla24xx_mbx_completion(vha, MSW(stat)); 2921 status |= MBX_INTERRUPT; 2922 2923 break; 2924 case INTR_ASYNC_EVENT: 2925 mb[0] = MSW(stat); 2926 mb[1] = RD_REG_WORD(®->mailbox1); 2927 mb[2] = RD_REG_WORD(®->mailbox2); 2928 mb[3] = RD_REG_WORD(®->mailbox3); 2929 qla2x00_async_event(vha, rsp, mb); 2930 break; 2931 case INTR_RSP_QUE_UPDATE: 2932 case INTR_RSP_QUE_UPDATE_83XX: 2933 qla24xx_process_response_queue(vha, rsp); 2934 break; 2935 case INTR_ATIO_QUE_UPDATE:{ 2936 unsigned long flags2; 2937 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2938 qlt_24xx_process_atio_queue(vha, 1); 2939 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2940 break; 2941 } 2942 case INTR_ATIO_RSP_QUE_UPDATE: { 2943 unsigned long flags2; 2944 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2945 qlt_24xx_process_atio_queue(vha, 1); 2946 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2947 2948 qla24xx_process_response_queue(vha, rsp); 2949 break; 2950 } 2951 default: 2952 ql_dbg(ql_dbg_async, vha, 0x5051, 2953 "Unrecognized interrupt type (%d).\n", stat & 0xff); 2954 break; 2955 } 2956 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2957 } while (0); 2958 qla2x00_handle_mbx_completion(ha, status); 2959 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2960 2961 return IRQ_HANDLED; 2962 } 2963 2964 irqreturn_t 2965 qla2xxx_msix_rsp_q(int irq, void *dev_id) 2966 { 2967 struct qla_hw_data *ha; 2968 struct qla_qpair *qpair; 2969 struct device_reg_24xx __iomem *reg; 2970 unsigned long flags; 2971 2972 qpair = dev_id; 2973 if (!qpair) { 2974 ql_log(ql_log_info, NULL, 0x505b, 2975 "%s: NULL response queue pointer.\n", __func__); 2976 return IRQ_NONE; 2977 } 2978 ha = qpair->hw; 2979 2980 /* Clear the interrupt, if enabled, for this response queue */ 2981 if (unlikely(!ha->flags.disable_msix_handshake)) { 2982 reg = &ha->iobase->isp24; 2983 spin_lock_irqsave(&ha->hardware_lock, flags); 2984 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2985 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2986 } 2987 2988 queue_work(ha->wq, &qpair->q_work); 2989 2990 return IRQ_HANDLED; 2991 } 2992 2993 /* Interrupt handling helpers. */ 2994 2995 struct qla_init_msix_entry { 2996 const char *name; 2997 irq_handler_t handler; 2998 }; 2999 3000 static const struct qla_init_msix_entry msix_entries[] = { 3001 { "qla2xxx (default)", qla24xx_msix_default }, 3002 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 3003 { "qla2xxx (atio_q)", qla83xx_msix_atio_q }, 3004 { "qla2xxx (qpair_multiq)", qla2xxx_msix_rsp_q }, 3005 }; 3006 3007 static const struct qla_init_msix_entry qla82xx_msix_entries[] = { 3008 { "qla2xxx (default)", qla82xx_msix_default }, 3009 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 3010 }; 3011 3012 static int 3013 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 3014 { 3015 int i, ret; 3016 struct qla_msix_entry *qentry; 3017 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3018 struct irq_affinity desc = { 3019 .pre_vectors = QLA_BASE_VECTORS, 3020 }; 3021 3022 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) 3023 desc.pre_vectors++; 3024 3025 ret = pci_alloc_irq_vectors_affinity(ha->pdev, QLA_BASE_VECTORS, 3026 ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY, 3027 &desc); 3028 3029 if (ret < 0) { 3030 ql_log(ql_log_fatal, vha, 0x00c7, 3031 "MSI-X: Failed to enable support, " 3032 "giving up -- %d/%d.\n", 3033 ha->msix_count, ret); 3034 goto msix_out; 3035 } else if (ret < ha->msix_count) { 3036 ql_log(ql_log_warn, vha, 0x00c6, 3037 "MSI-X: Failed to enable support " 3038 "with %d vectors, using %d vectors.\n", 3039 ha->msix_count, ret); 3040 ha->msix_count = ret; 3041 /* Recalculate queue values */ 3042 if (ha->mqiobase && ql2xmqsupport) { 3043 ha->max_req_queues = ha->msix_count - 1; 3044 3045 /* ATIOQ needs 1 vector. That's 1 less QPair */ 3046 if (QLA_TGT_MODE_ENABLED()) 3047 ha->max_req_queues--; 3048 3049 ha->max_rsp_queues = ha->max_req_queues; 3050 3051 ha->max_qpairs = ha->max_req_queues - 1; 3052 ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0190, 3053 "Adjusted Max no of queues pairs: %d.\n", ha->max_qpairs); 3054 } 3055 } 3056 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 3057 ha->msix_count, GFP_KERNEL); 3058 if (!ha->msix_entries) { 3059 ql_log(ql_log_fatal, vha, 0x00c8, 3060 "Failed to allocate memory for ha->msix_entries.\n"); 3061 ret = -ENOMEM; 3062 goto msix_out; 3063 } 3064 ha->flags.msix_enabled = 1; 3065 3066 for (i = 0; i < ha->msix_count; i++) { 3067 qentry = &ha->msix_entries[i]; 3068 qentry->vector = pci_irq_vector(ha->pdev, i); 3069 qentry->entry = i; 3070 qentry->have_irq = 0; 3071 qentry->in_use = 0; 3072 qentry->handle = NULL; 3073 } 3074 3075 /* Enable MSI-X vectors for the base queue */ 3076 for (i = 0; i < QLA_BASE_VECTORS; i++) { 3077 qentry = &ha->msix_entries[i]; 3078 qentry->handle = rsp; 3079 rsp->msix = qentry; 3080 scnprintf(qentry->name, sizeof(qentry->name), 3081 "%s", msix_entries[i].name); 3082 if (IS_P3P_TYPE(ha)) 3083 ret = request_irq(qentry->vector, 3084 qla82xx_msix_entries[i].handler, 3085 0, qla82xx_msix_entries[i].name, rsp); 3086 else 3087 ret = request_irq(qentry->vector, 3088 msix_entries[i].handler, 3089 0, msix_entries[i].name, rsp); 3090 if (ret) 3091 goto msix_register_fail; 3092 qentry->have_irq = 1; 3093 qentry->in_use = 1; 3094 } 3095 3096 /* 3097 * If target mode is enable, also request the vector for the ATIO 3098 * queue. 3099 */ 3100 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) { 3101 qentry = &ha->msix_entries[QLA_ATIO_VECTOR]; 3102 rsp->msix = qentry; 3103 qentry->handle = rsp; 3104 scnprintf(qentry->name, sizeof(qentry->name), 3105 "%s", msix_entries[QLA_ATIO_VECTOR].name); 3106 qentry->in_use = 1; 3107 ret = request_irq(qentry->vector, 3108 msix_entries[QLA_ATIO_VECTOR].handler, 3109 0, msix_entries[QLA_ATIO_VECTOR].name, rsp); 3110 qentry->have_irq = 1; 3111 } 3112 3113 msix_register_fail: 3114 if (ret) { 3115 ql_log(ql_log_fatal, vha, 0x00cb, 3116 "MSI-X: unable to register handler -- %x/%d.\n", 3117 qentry->vector, ret); 3118 qla2x00_free_irqs(vha); 3119 ha->mqenable = 0; 3120 goto msix_out; 3121 } 3122 3123 /* Enable MSI-X vector for response queue update for queue 0 */ 3124 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 3125 if (ha->msixbase && ha->mqiobase && 3126 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 || 3127 ql2xmqsupport)) 3128 ha->mqenable = 1; 3129 } else 3130 if (ha->mqiobase && 3131 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1 || 3132 ql2xmqsupport)) 3133 ha->mqenable = 1; 3134 ql_dbg(ql_dbg_multiq, vha, 0xc005, 3135 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3136 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3137 ql_dbg(ql_dbg_init, vha, 0x0055, 3138 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3139 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3140 3141 msix_out: 3142 return ret; 3143 } 3144 3145 int 3146 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 3147 { 3148 int ret = QLA_FUNCTION_FAILED; 3149 device_reg_t *reg = ha->iobase; 3150 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3151 3152 /* If possible, enable MSI-X. */ 3153 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3154 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) && 3155 !IS_QLA27XX(ha)) 3156 goto skip_msi; 3157 3158 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 3159 (ha->pdev->subsystem_device == 0x7040 || 3160 ha->pdev->subsystem_device == 0x7041 || 3161 ha->pdev->subsystem_device == 0x1705)) { 3162 ql_log(ql_log_warn, vha, 0x0034, 3163 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n", 3164 ha->pdev->subsystem_vendor, 3165 ha->pdev->subsystem_device); 3166 goto skip_msi; 3167 } 3168 3169 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) { 3170 ql_log(ql_log_warn, vha, 0x0035, 3171 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n", 3172 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX); 3173 goto skip_msix; 3174 } 3175 3176 ret = qla24xx_enable_msix(ha, rsp); 3177 if (!ret) { 3178 ql_dbg(ql_dbg_init, vha, 0x0036, 3179 "MSI-X: Enabled (0x%X, 0x%X).\n", 3180 ha->chip_revision, ha->fw_attributes); 3181 goto clear_risc_ints; 3182 } 3183 3184 skip_msix: 3185 3186 ql_log(ql_log_info, vha, 0x0037, 3187 "Falling back-to MSI mode -%d.\n", ret); 3188 3189 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3190 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) && 3191 !IS_QLA27XX(ha)) 3192 goto skip_msi; 3193 3194 ret = pci_alloc_irq_vectors(ha->pdev, 1, 1, PCI_IRQ_MSI); 3195 if (!ret) { 3196 ql_dbg(ql_dbg_init, vha, 0x0038, 3197 "MSI: Enabled.\n"); 3198 ha->flags.msi_enabled = 1; 3199 } else 3200 ql_log(ql_log_warn, vha, 0x0039, 3201 "Falling back-to INTa mode -- %d.\n", ret); 3202 skip_msi: 3203 3204 /* Skip INTx on ISP82xx. */ 3205 if (!ha->flags.msi_enabled && IS_QLA82XX(ha)) 3206 return QLA_FUNCTION_FAILED; 3207 3208 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 3209 ha->flags.msi_enabled ? 0 : IRQF_SHARED, 3210 QLA2XXX_DRIVER_NAME, rsp); 3211 if (ret) { 3212 ql_log(ql_log_warn, vha, 0x003a, 3213 "Failed to reserve interrupt %d already in use.\n", 3214 ha->pdev->irq); 3215 goto fail; 3216 } else if (!ha->flags.msi_enabled) { 3217 ql_dbg(ql_dbg_init, vha, 0x0125, 3218 "INTa mode: Enabled.\n"); 3219 ha->flags.mr_intr_valid = 1; 3220 } 3221 3222 clear_risc_ints: 3223 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha)) 3224 goto fail; 3225 3226 spin_lock_irq(&ha->hardware_lock); 3227 WRT_REG_WORD(®->isp.semaphore, 0); 3228 spin_unlock_irq(&ha->hardware_lock); 3229 3230 fail: 3231 return ret; 3232 } 3233 3234 void 3235 qla2x00_free_irqs(scsi_qla_host_t *vha) 3236 { 3237 struct qla_hw_data *ha = vha->hw; 3238 struct rsp_que *rsp; 3239 struct qla_msix_entry *qentry; 3240 int i; 3241 3242 /* 3243 * We need to check that ha->rsp_q_map is valid in case we are called 3244 * from a probe failure context. 3245 */ 3246 if (!ha->rsp_q_map || !ha->rsp_q_map[0]) 3247 goto free_irqs; 3248 rsp = ha->rsp_q_map[0]; 3249 3250 if (ha->flags.msix_enabled) { 3251 for (i = 0; i < ha->msix_count; i++) { 3252 qentry = &ha->msix_entries[i]; 3253 if (qentry->have_irq) { 3254 irq_set_affinity_notifier(qentry->vector, NULL); 3255 free_irq(pci_irq_vector(ha->pdev, i), qentry->handle); 3256 } 3257 } 3258 kfree(ha->msix_entries); 3259 ha->msix_entries = NULL; 3260 ha->flags.msix_enabled = 0; 3261 ql_dbg(ql_dbg_init, vha, 0x0042, 3262 "Disabled MSI-X.\n"); 3263 } else { 3264 free_irq(pci_irq_vector(ha->pdev, 0), rsp); 3265 } 3266 3267 free_irqs: 3268 pci_free_irq_vectors(ha->pdev); 3269 } 3270 3271 int qla25xx_request_irq(struct qla_hw_data *ha, struct qla_qpair *qpair, 3272 struct qla_msix_entry *msix, int vector_type) 3273 { 3274 const struct qla_init_msix_entry *intr = &msix_entries[vector_type]; 3275 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3276 int ret; 3277 3278 scnprintf(msix->name, sizeof(msix->name), 3279 "qla2xxx%lu_qpair%d", vha->host_no, qpair->id); 3280 ret = request_irq(msix->vector, intr->handler, 0, msix->name, qpair); 3281 if (ret) { 3282 ql_log(ql_log_fatal, vha, 0x00e6, 3283 "MSI-X: Unable to register handler -- %x/%d.\n", 3284 msix->vector, ret); 3285 return ret; 3286 } 3287 msix->have_irq = 1; 3288 msix->handle = qpair; 3289 return ret; 3290 } 3291