1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 #include "qla_target.h" 9 10 #include <linux/delay.h> 11 #include <linux/slab.h> 12 #include <scsi/scsi_tcq.h> 13 #include <scsi/scsi_bsg_fc.h> 14 #include <scsi/scsi_eh.h> 15 16 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 17 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); 18 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *); 19 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *, 20 sts_entry_t *); 21 static void qla_irq_affinity_notify(struct irq_affinity_notify *, 22 const cpumask_t *); 23 static void qla_irq_affinity_release(struct kref *); 24 25 26 /** 27 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 28 * @irq: 29 * @dev_id: SCSI driver HA context 30 * 31 * Called by system whenever the host adapter generates an interrupt. 32 * 33 * Returns handled flag. 34 */ 35 irqreturn_t 36 qla2100_intr_handler(int irq, void *dev_id) 37 { 38 scsi_qla_host_t *vha; 39 struct qla_hw_data *ha; 40 struct device_reg_2xxx __iomem *reg; 41 int status; 42 unsigned long iter; 43 uint16_t hccr; 44 uint16_t mb[4]; 45 struct rsp_que *rsp; 46 unsigned long flags; 47 48 rsp = (struct rsp_que *) dev_id; 49 if (!rsp) { 50 ql_log(ql_log_info, NULL, 0x505d, 51 "%s: NULL response queue pointer.\n", __func__); 52 return (IRQ_NONE); 53 } 54 55 ha = rsp->hw; 56 reg = &ha->iobase->isp; 57 status = 0; 58 59 spin_lock_irqsave(&ha->hardware_lock, flags); 60 vha = pci_get_drvdata(ha->pdev); 61 for (iter = 50; iter--; ) { 62 hccr = RD_REG_WORD(®->hccr); 63 if (qla2x00_check_reg16_for_disconnect(vha, hccr)) 64 break; 65 if (hccr & HCCR_RISC_PAUSE) { 66 if (pci_channel_offline(ha->pdev)) 67 break; 68 69 /* 70 * Issue a "HARD" reset in order for the RISC interrupt 71 * bit to be cleared. Schedule a big hammer to get 72 * out of the RISC PAUSED state. 73 */ 74 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 75 RD_REG_WORD(®->hccr); 76 77 ha->isp_ops->fw_dump(vha, 1); 78 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 79 break; 80 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 81 break; 82 83 if (RD_REG_WORD(®->semaphore) & BIT_0) { 84 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 85 RD_REG_WORD(®->hccr); 86 87 /* Get mailbox data. */ 88 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 89 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 90 qla2x00_mbx_completion(vha, mb[0]); 91 status |= MBX_INTERRUPT; 92 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 93 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 94 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 95 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 96 qla2x00_async_event(vha, rsp, mb); 97 } else { 98 /*EMPTY*/ 99 ql_dbg(ql_dbg_async, vha, 0x5025, 100 "Unrecognized interrupt type (%d).\n", 101 mb[0]); 102 } 103 /* Release mailbox registers. */ 104 WRT_REG_WORD(®->semaphore, 0); 105 RD_REG_WORD(®->semaphore); 106 } else { 107 qla2x00_process_response_queue(rsp); 108 109 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 110 RD_REG_WORD(®->hccr); 111 } 112 } 113 qla2x00_handle_mbx_completion(ha, status); 114 spin_unlock_irqrestore(&ha->hardware_lock, flags); 115 116 return (IRQ_HANDLED); 117 } 118 119 bool 120 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg) 121 { 122 /* Check for PCI disconnection */ 123 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) { 124 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) && 125 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) && 126 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) { 127 /* 128 * Schedule this (only once) on the default system 129 * workqueue so that all the adapter workqueues and the 130 * DPC thread can be shutdown cleanly. 131 */ 132 schedule_work(&vha->hw->board_disable); 133 } 134 return true; 135 } else 136 return false; 137 } 138 139 bool 140 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg) 141 { 142 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg); 143 } 144 145 /** 146 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 147 * @irq: 148 * @dev_id: SCSI driver HA context 149 * 150 * Called by system whenever the host adapter generates an interrupt. 151 * 152 * Returns handled flag. 153 */ 154 irqreturn_t 155 qla2300_intr_handler(int irq, void *dev_id) 156 { 157 scsi_qla_host_t *vha; 158 struct device_reg_2xxx __iomem *reg; 159 int status; 160 unsigned long iter; 161 uint32_t stat; 162 uint16_t hccr; 163 uint16_t mb[4]; 164 struct rsp_que *rsp; 165 struct qla_hw_data *ha; 166 unsigned long flags; 167 168 rsp = (struct rsp_que *) dev_id; 169 if (!rsp) { 170 ql_log(ql_log_info, NULL, 0x5058, 171 "%s: NULL response queue pointer.\n", __func__); 172 return (IRQ_NONE); 173 } 174 175 ha = rsp->hw; 176 reg = &ha->iobase->isp; 177 status = 0; 178 179 spin_lock_irqsave(&ha->hardware_lock, flags); 180 vha = pci_get_drvdata(ha->pdev); 181 for (iter = 50; iter--; ) { 182 stat = RD_REG_DWORD(®->u.isp2300.host_status); 183 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 184 break; 185 if (stat & HSR_RISC_PAUSED) { 186 if (unlikely(pci_channel_offline(ha->pdev))) 187 break; 188 189 hccr = RD_REG_WORD(®->hccr); 190 191 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 192 ql_log(ql_log_warn, vha, 0x5026, 193 "Parity error -- HCCR=%x, Dumping " 194 "firmware.\n", hccr); 195 else 196 ql_log(ql_log_warn, vha, 0x5027, 197 "RISC paused -- HCCR=%x, Dumping " 198 "firmware.\n", hccr); 199 200 /* 201 * Issue a "HARD" reset in order for the RISC 202 * interrupt bit to be cleared. Schedule a big 203 * hammer to get out of the RISC PAUSED state. 204 */ 205 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 206 RD_REG_WORD(®->hccr); 207 208 ha->isp_ops->fw_dump(vha, 1); 209 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 210 break; 211 } else if ((stat & HSR_RISC_INT) == 0) 212 break; 213 214 switch (stat & 0xff) { 215 case 0x1: 216 case 0x2: 217 case 0x10: 218 case 0x11: 219 qla2x00_mbx_completion(vha, MSW(stat)); 220 status |= MBX_INTERRUPT; 221 222 /* Release mailbox registers. */ 223 WRT_REG_WORD(®->semaphore, 0); 224 break; 225 case 0x12: 226 mb[0] = MSW(stat); 227 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 228 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 229 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 230 qla2x00_async_event(vha, rsp, mb); 231 break; 232 case 0x13: 233 qla2x00_process_response_queue(rsp); 234 break; 235 case 0x15: 236 mb[0] = MBA_CMPLT_1_16BIT; 237 mb[1] = MSW(stat); 238 qla2x00_async_event(vha, rsp, mb); 239 break; 240 case 0x16: 241 mb[0] = MBA_SCSI_COMPLETION; 242 mb[1] = MSW(stat); 243 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 244 qla2x00_async_event(vha, rsp, mb); 245 break; 246 default: 247 ql_dbg(ql_dbg_async, vha, 0x5028, 248 "Unrecognized interrupt type (%d).\n", stat & 0xff); 249 break; 250 } 251 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 252 RD_REG_WORD_RELAXED(®->hccr); 253 } 254 qla2x00_handle_mbx_completion(ha, status); 255 spin_unlock_irqrestore(&ha->hardware_lock, flags); 256 257 return (IRQ_HANDLED); 258 } 259 260 /** 261 * qla2x00_mbx_completion() - Process mailbox command completions. 262 * @ha: SCSI driver HA context 263 * @mb0: Mailbox0 register 264 */ 265 static void 266 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 267 { 268 uint16_t cnt; 269 uint32_t mboxes; 270 uint16_t __iomem *wptr; 271 struct qla_hw_data *ha = vha->hw; 272 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 273 274 /* Read all mbox registers? */ 275 mboxes = (1 << ha->mbx_count) - 1; 276 if (!ha->mcp) 277 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n"); 278 else 279 mboxes = ha->mcp->in_mb; 280 281 /* Load return mailbox registers. */ 282 ha->flags.mbox_int = 1; 283 ha->mailbox_out[0] = mb0; 284 mboxes >>= 1; 285 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 286 287 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 288 if (IS_QLA2200(ha) && cnt == 8) 289 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 290 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0)) 291 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 292 else if (mboxes & BIT_0) 293 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 294 295 wptr++; 296 mboxes >>= 1; 297 } 298 } 299 300 static void 301 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) 302 { 303 static char *event[] = 304 { "Complete", "Request Notification", "Time Extension" }; 305 int rval; 306 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24; 307 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82; 308 uint16_t __iomem *wptr; 309 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; 310 311 /* Seed data -- mailbox1 -> mailbox7. */ 312 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw)) 313 wptr = (uint16_t __iomem *)®24->mailbox1; 314 else if (IS_QLA8044(vha->hw)) 315 wptr = (uint16_t __iomem *)®82->mailbox_out[1]; 316 else 317 return; 318 319 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) 320 mb[cnt] = RD_REG_WORD(wptr); 321 322 ql_dbg(ql_dbg_async, vha, 0x5021, 323 "Inter-Driver Communication %s -- " 324 "%04x %04x %04x %04x %04x %04x %04x.\n", 325 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3], 326 mb[4], mb[5], mb[6]); 327 switch (aen) { 328 /* Handle IDC Error completion case. */ 329 case MBA_IDC_COMPLETE: 330 if (mb[1] >> 15) { 331 vha->hw->flags.idc_compl_status = 1; 332 if (vha->hw->notify_dcbx_comp && !vha->vp_idx) 333 complete(&vha->hw->dcbx_comp); 334 } 335 break; 336 337 case MBA_IDC_NOTIFY: 338 /* Acknowledgement needed? [Notify && non-zero timeout]. */ 339 timeout = (descr >> 8) & 0xf; 340 ql_dbg(ql_dbg_async, vha, 0x5022, 341 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n", 342 vha->host_no, event[aen & 0xff], timeout); 343 344 if (!timeout) 345 return; 346 rval = qla2x00_post_idc_ack_work(vha, mb); 347 if (rval != QLA_SUCCESS) 348 ql_log(ql_log_warn, vha, 0x5023, 349 "IDC failed to post ACK.\n"); 350 break; 351 case MBA_IDC_TIME_EXT: 352 vha->hw->idc_extend_tmo = descr; 353 ql_dbg(ql_dbg_async, vha, 0x5087, 354 "%lu Inter-Driver Communication %s -- " 355 "Extend timeout by=%d.\n", 356 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo); 357 break; 358 } 359 } 360 361 #define LS_UNKNOWN 2 362 const char * 363 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed) 364 { 365 static const char *const link_speeds[] = { 366 "1", "2", "?", "4", "8", "16", "32", "10" 367 }; 368 #define QLA_LAST_SPEED 7 369 370 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 371 return link_speeds[0]; 372 else if (speed == 0x13) 373 return link_speeds[QLA_LAST_SPEED]; 374 else if (speed < QLA_LAST_SPEED) 375 return link_speeds[speed]; 376 else 377 return link_speeds[LS_UNKNOWN]; 378 } 379 380 static void 381 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb) 382 { 383 struct qla_hw_data *ha = vha->hw; 384 385 /* 386 * 8200 AEN Interpretation: 387 * mb[0] = AEN code 388 * mb[1] = AEN Reason code 389 * mb[2] = LSW of Peg-Halt Status-1 Register 390 * mb[6] = MSW of Peg-Halt Status-1 Register 391 * mb[3] = LSW of Peg-Halt Status-2 register 392 * mb[7] = MSW of Peg-Halt Status-2 register 393 * mb[4] = IDC Device-State Register value 394 * mb[5] = IDC Driver-Presence Register value 395 */ 396 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: " 397 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n", 398 mb[0], mb[1], mb[2], mb[6]); 399 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x " 400 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x " 401 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]); 402 403 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE | 404 IDC_HEARTBEAT_FAILURE)) { 405 ha->flags.nic_core_hung = 1; 406 ql_log(ql_log_warn, vha, 0x5060, 407 "83XX: F/W Error Reported: Check if reset required.\n"); 408 409 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) { 410 uint32_t protocol_engine_id, fw_err_code, err_level; 411 412 /* 413 * IDC_PEG_HALT_STATUS_CHANGE interpretation: 414 * - PEG-Halt Status-1 Register: 415 * (LSW = mb[2], MSW = mb[6]) 416 * Bits 0-7 = protocol-engine ID 417 * Bits 8-28 = f/w error code 418 * Bits 29-31 = Error-level 419 * Error-level 0x1 = Non-Fatal error 420 * Error-level 0x2 = Recoverable Fatal error 421 * Error-level 0x4 = UnRecoverable Fatal error 422 * - PEG-Halt Status-2 Register: 423 * (LSW = mb[3], MSW = mb[7]) 424 */ 425 protocol_engine_id = (mb[2] & 0xff); 426 fw_err_code = (((mb[2] & 0xff00) >> 8) | 427 ((mb[6] & 0x1fff) << 8)); 428 err_level = ((mb[6] & 0xe000) >> 13); 429 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 " 430 "Register: protocol_engine_id=0x%x " 431 "fw_err_code=0x%x err_level=0x%x.\n", 432 protocol_engine_id, fw_err_code, err_level); 433 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 " 434 "Register: 0x%x%x.\n", mb[7], mb[3]); 435 if (err_level == ERR_LEVEL_NON_FATAL) { 436 ql_log(ql_log_warn, vha, 0x5063, 437 "Not a fatal error, f/w has recovered " 438 "iteself.\n"); 439 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) { 440 ql_log(ql_log_fatal, vha, 0x5064, 441 "Recoverable Fatal error: Chip reset " 442 "required.\n"); 443 qla83xx_schedule_work(vha, 444 QLA83XX_NIC_CORE_RESET); 445 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) { 446 ql_log(ql_log_fatal, vha, 0x5065, 447 "Unrecoverable Fatal error: Set FAILED " 448 "state, reboot required.\n"); 449 qla83xx_schedule_work(vha, 450 QLA83XX_NIC_CORE_UNRECOVERABLE); 451 } 452 } 453 454 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) { 455 uint16_t peg_fw_state, nw_interface_link_up; 456 uint16_t nw_interface_signal_detect, sfp_status; 457 uint16_t htbt_counter, htbt_monitor_enable; 458 uint16_t sfp_additonal_info, sfp_multirate; 459 uint16_t sfp_tx_fault, link_speed, dcbx_status; 460 461 /* 462 * IDC_NIC_FW_REPORTED_FAILURE interpretation: 463 * - PEG-to-FC Status Register: 464 * (LSW = mb[2], MSW = mb[6]) 465 * Bits 0-7 = Peg-Firmware state 466 * Bit 8 = N/W Interface Link-up 467 * Bit 9 = N/W Interface signal detected 468 * Bits 10-11 = SFP Status 469 * SFP Status 0x0 = SFP+ transceiver not expected 470 * SFP Status 0x1 = SFP+ transceiver not present 471 * SFP Status 0x2 = SFP+ transceiver invalid 472 * SFP Status 0x3 = SFP+ transceiver present and 473 * valid 474 * Bits 12-14 = Heartbeat Counter 475 * Bit 15 = Heartbeat Monitor Enable 476 * Bits 16-17 = SFP Additional Info 477 * SFP info 0x0 = Unregocnized transceiver for 478 * Ethernet 479 * SFP info 0x1 = SFP+ brand validation failed 480 * SFP info 0x2 = SFP+ speed validation failed 481 * SFP info 0x3 = SFP+ access error 482 * Bit 18 = SFP Multirate 483 * Bit 19 = SFP Tx Fault 484 * Bits 20-22 = Link Speed 485 * Bits 23-27 = Reserved 486 * Bits 28-30 = DCBX Status 487 * DCBX Status 0x0 = DCBX Disabled 488 * DCBX Status 0x1 = DCBX Enabled 489 * DCBX Status 0x2 = DCBX Exchange error 490 * Bit 31 = Reserved 491 */ 492 peg_fw_state = (mb[2] & 0x00ff); 493 nw_interface_link_up = ((mb[2] & 0x0100) >> 8); 494 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9); 495 sfp_status = ((mb[2] & 0x0c00) >> 10); 496 htbt_counter = ((mb[2] & 0x7000) >> 12); 497 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15); 498 sfp_additonal_info = (mb[6] & 0x0003); 499 sfp_multirate = ((mb[6] & 0x0004) >> 2); 500 sfp_tx_fault = ((mb[6] & 0x0008) >> 3); 501 link_speed = ((mb[6] & 0x0070) >> 4); 502 dcbx_status = ((mb[6] & 0x7000) >> 12); 503 504 ql_log(ql_log_warn, vha, 0x5066, 505 "Peg-to-Fc Status Register:\n" 506 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, " 507 "nw_interface_signal_detect=0x%x" 508 "\nsfp_statis=0x%x.\n ", peg_fw_state, 509 nw_interface_link_up, nw_interface_signal_detect, 510 sfp_status); 511 ql_log(ql_log_warn, vha, 0x5067, 512 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, " 513 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ", 514 htbt_counter, htbt_monitor_enable, 515 sfp_additonal_info, sfp_multirate); 516 ql_log(ql_log_warn, vha, 0x5068, 517 "sfp_tx_fault=0x%x, link_state=0x%x, " 518 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed, 519 dcbx_status); 520 521 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 522 } 523 524 if (mb[1] & IDC_HEARTBEAT_FAILURE) { 525 ql_log(ql_log_warn, vha, 0x5069, 526 "Heartbeat Failure encountered, chip reset " 527 "required.\n"); 528 529 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 530 } 531 } 532 533 if (mb[1] & IDC_DEVICE_STATE_CHANGE) { 534 ql_log(ql_log_info, vha, 0x506a, 535 "IDC Device-State changed = 0x%x.\n", mb[4]); 536 if (ha->flags.nic_core_reset_owner) 537 return; 538 qla83xx_schedule_work(vha, MBA_IDC_AEN); 539 } 540 } 541 542 int 543 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry) 544 { 545 struct qla_hw_data *ha = vha->hw; 546 scsi_qla_host_t *vp; 547 uint32_t vp_did; 548 unsigned long flags; 549 int ret = 0; 550 551 if (!ha->num_vhosts) 552 return ret; 553 554 spin_lock_irqsave(&ha->vport_slock, flags); 555 list_for_each_entry(vp, &ha->vp_list, list) { 556 vp_did = vp->d_id.b24; 557 if (vp_did == rscn_entry) { 558 ret = 1; 559 break; 560 } 561 } 562 spin_unlock_irqrestore(&ha->vport_slock, flags); 563 564 return ret; 565 } 566 567 static inline fc_port_t * 568 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id) 569 { 570 fc_port_t *fcport; 571 572 list_for_each_entry(fcport, &vha->vp_fcports, list) 573 if (fcport->loop_id == loop_id) 574 return fcport; 575 return NULL; 576 } 577 578 /** 579 * qla2x00_async_event() - Process aynchronous events. 580 * @ha: SCSI driver HA context 581 * @mb: Mailbox registers (0 - 3) 582 */ 583 void 584 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) 585 { 586 uint16_t handle_cnt; 587 uint16_t cnt, mbx; 588 uint32_t handles[5]; 589 struct qla_hw_data *ha = vha->hw; 590 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 591 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; 592 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; 593 uint32_t rscn_entry, host_pid; 594 unsigned long flags; 595 fc_port_t *fcport = NULL; 596 597 /* Setup to process RIO completion. */ 598 handle_cnt = 0; 599 if (IS_CNA_CAPABLE(ha)) 600 goto skip_rio; 601 switch (mb[0]) { 602 case MBA_SCSI_COMPLETION: 603 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 604 handle_cnt = 1; 605 break; 606 case MBA_CMPLT_1_16BIT: 607 handles[0] = mb[1]; 608 handle_cnt = 1; 609 mb[0] = MBA_SCSI_COMPLETION; 610 break; 611 case MBA_CMPLT_2_16BIT: 612 handles[0] = mb[1]; 613 handles[1] = mb[2]; 614 handle_cnt = 2; 615 mb[0] = MBA_SCSI_COMPLETION; 616 break; 617 case MBA_CMPLT_3_16BIT: 618 handles[0] = mb[1]; 619 handles[1] = mb[2]; 620 handles[2] = mb[3]; 621 handle_cnt = 3; 622 mb[0] = MBA_SCSI_COMPLETION; 623 break; 624 case MBA_CMPLT_4_16BIT: 625 handles[0] = mb[1]; 626 handles[1] = mb[2]; 627 handles[2] = mb[3]; 628 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 629 handle_cnt = 4; 630 mb[0] = MBA_SCSI_COMPLETION; 631 break; 632 case MBA_CMPLT_5_16BIT: 633 handles[0] = mb[1]; 634 handles[1] = mb[2]; 635 handles[2] = mb[3]; 636 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 637 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 638 handle_cnt = 5; 639 mb[0] = MBA_SCSI_COMPLETION; 640 break; 641 case MBA_CMPLT_2_32BIT: 642 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 643 handles[1] = le32_to_cpu( 644 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 645 RD_MAILBOX_REG(ha, reg, 6)); 646 handle_cnt = 2; 647 mb[0] = MBA_SCSI_COMPLETION; 648 break; 649 default: 650 break; 651 } 652 skip_rio: 653 switch (mb[0]) { 654 case MBA_SCSI_COMPLETION: /* Fast Post */ 655 if (!vha->flags.online) 656 break; 657 658 for (cnt = 0; cnt < handle_cnt; cnt++) 659 qla2x00_process_completed_request(vha, rsp->req, 660 handles[cnt]); 661 break; 662 663 case MBA_RESET: /* Reset */ 664 ql_dbg(ql_dbg_async, vha, 0x5002, 665 "Asynchronous RESET.\n"); 666 667 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 668 break; 669 670 case MBA_SYSTEM_ERR: /* System Error */ 671 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ? 672 RD_REG_WORD(®24->mailbox7) : 0; 673 ql_log(ql_log_warn, vha, 0x5003, 674 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh " 675 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); 676 677 ha->isp_ops->fw_dump(vha, 1); 678 679 if (IS_FWI2_CAPABLE(ha)) { 680 if (mb[1] == 0 && mb[2] == 0) { 681 ql_log(ql_log_fatal, vha, 0x5004, 682 "Unrecoverable Hardware Error: adapter " 683 "marked OFFLINE!\n"); 684 vha->flags.online = 0; 685 vha->device_flags |= DFLG_DEV_FAILED; 686 } else { 687 /* Check to see if MPI timeout occurred */ 688 if ((mbx & MBX_3) && (ha->port_no == 0)) 689 set_bit(MPI_RESET_NEEDED, 690 &vha->dpc_flags); 691 692 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 693 } 694 } else if (mb[1] == 0) { 695 ql_log(ql_log_fatal, vha, 0x5005, 696 "Unrecoverable Hardware Error: adapter marked " 697 "OFFLINE!\n"); 698 vha->flags.online = 0; 699 vha->device_flags |= DFLG_DEV_FAILED; 700 } else 701 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 702 break; 703 704 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 705 ql_log(ql_log_warn, vha, 0x5006, 706 "ISP Request Transfer Error (%x).\n", mb[1]); 707 708 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 709 break; 710 711 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 712 ql_log(ql_log_warn, vha, 0x5007, 713 "ISP Response Transfer Error.\n"); 714 715 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 716 break; 717 718 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 719 ql_dbg(ql_dbg_async, vha, 0x5008, 720 "Asynchronous WAKEUP_THRES.\n"); 721 722 break; 723 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 724 ql_dbg(ql_dbg_async, vha, 0x5009, 725 "LIP occurred (%x).\n", mb[1]); 726 727 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 728 atomic_set(&vha->loop_state, LOOP_DOWN); 729 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 730 qla2x00_mark_all_devices_lost(vha, 1); 731 } 732 733 if (vha->vp_idx) { 734 atomic_set(&vha->vp_state, VP_FAILED); 735 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 736 } 737 738 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 739 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 740 741 vha->flags.management_server_logged_in = 0; 742 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 743 break; 744 745 case MBA_LOOP_UP: /* Loop Up Event */ 746 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 747 ha->link_data_rate = PORT_SPEED_1GB; 748 else 749 ha->link_data_rate = mb[1]; 750 751 ql_log(ql_log_info, vha, 0x500a, 752 "LOOP UP detected (%s Gbps).\n", 753 qla2x00_get_link_speed_str(ha, ha->link_data_rate)); 754 755 vha->flags.management_server_logged_in = 0; 756 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 757 break; 758 759 case MBA_LOOP_DOWN: /* Loop Down Event */ 760 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha)) 761 ? RD_REG_WORD(®24->mailbox4) : 0; 762 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4]) 763 : mbx; 764 ql_log(ql_log_info, vha, 0x500b, 765 "LOOP DOWN detected (%x %x %x %x).\n", 766 mb[1], mb[2], mb[3], mbx); 767 768 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 769 atomic_set(&vha->loop_state, LOOP_DOWN); 770 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 771 /* 772 * In case of loop down, restore WWPN from 773 * NVRAM in case of FA-WWPN capable ISP 774 * Restore for Physical Port only 775 */ 776 if (!vha->vp_idx) { 777 if (ha->flags.fawwpn_enabled) { 778 void *wwpn = ha->init_cb->port_name; 779 memcpy(vha->port_name, wwpn, WWN_SIZE); 780 fc_host_port_name(vha->host) = 781 wwn_to_u64(vha->port_name); 782 ql_dbg(ql_dbg_init + ql_dbg_verbose, 783 vha, 0x0144, "LOOP DOWN detected," 784 "restore WWPN %016llx\n", 785 wwn_to_u64(vha->port_name)); 786 } 787 788 clear_bit(VP_CONFIG_OK, &vha->vp_flags); 789 } 790 791 vha->device_flags |= DFLG_NO_CABLE; 792 qla2x00_mark_all_devices_lost(vha, 1); 793 } 794 795 if (vha->vp_idx) { 796 atomic_set(&vha->vp_state, VP_FAILED); 797 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 798 } 799 800 vha->flags.management_server_logged_in = 0; 801 ha->link_data_rate = PORT_SPEED_UNKNOWN; 802 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 803 break; 804 805 case MBA_LIP_RESET: /* LIP reset occurred */ 806 ql_dbg(ql_dbg_async, vha, 0x500c, 807 "LIP reset occurred (%x).\n", mb[1]); 808 809 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 810 atomic_set(&vha->loop_state, LOOP_DOWN); 811 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 812 qla2x00_mark_all_devices_lost(vha, 1); 813 } 814 815 if (vha->vp_idx) { 816 atomic_set(&vha->vp_state, VP_FAILED); 817 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 818 } 819 820 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 821 822 ha->operating_mode = LOOP; 823 vha->flags.management_server_logged_in = 0; 824 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 825 break; 826 827 /* case MBA_DCBX_COMPLETE: */ 828 case MBA_POINT_TO_POINT: /* Point-to-Point */ 829 if (IS_QLA2100(ha)) 830 break; 831 832 if (IS_CNA_CAPABLE(ha)) { 833 ql_dbg(ql_dbg_async, vha, 0x500d, 834 "DCBX Completed -- %04x %04x %04x.\n", 835 mb[1], mb[2], mb[3]); 836 if (ha->notify_dcbx_comp && !vha->vp_idx) 837 complete(&ha->dcbx_comp); 838 839 } else 840 ql_dbg(ql_dbg_async, vha, 0x500e, 841 "Asynchronous P2P MODE received.\n"); 842 843 /* 844 * Until there's a transition from loop down to loop up, treat 845 * this as loop down only. 846 */ 847 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 848 atomic_set(&vha->loop_state, LOOP_DOWN); 849 if (!atomic_read(&vha->loop_down_timer)) 850 atomic_set(&vha->loop_down_timer, 851 LOOP_DOWN_TIME); 852 qla2x00_mark_all_devices_lost(vha, 1); 853 } 854 855 if (vha->vp_idx) { 856 atomic_set(&vha->vp_state, VP_FAILED); 857 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 858 } 859 860 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 861 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 862 863 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 864 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 865 866 ha->flags.gpsc_supported = 1; 867 vha->flags.management_server_logged_in = 0; 868 break; 869 870 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 871 if (IS_QLA2100(ha)) 872 break; 873 874 ql_dbg(ql_dbg_async, vha, 0x500f, 875 "Configuration change detected: value=%x.\n", mb[1]); 876 877 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 878 atomic_set(&vha->loop_state, LOOP_DOWN); 879 if (!atomic_read(&vha->loop_down_timer)) 880 atomic_set(&vha->loop_down_timer, 881 LOOP_DOWN_TIME); 882 qla2x00_mark_all_devices_lost(vha, 1); 883 } 884 885 if (vha->vp_idx) { 886 atomic_set(&vha->vp_state, VP_FAILED); 887 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 888 } 889 890 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 891 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 892 break; 893 894 case MBA_PORT_UPDATE: /* Port database update */ 895 /* 896 * Handle only global and vn-port update events 897 * 898 * Relevant inputs: 899 * mb[1] = N_Port handle of changed port 900 * OR 0xffff for global event 901 * mb[2] = New login state 902 * 7 = Port logged out 903 * mb[3] = LSB is vp_idx, 0xff = all vps 904 * 905 * Skip processing if: 906 * Event is global, vp_idx is NOT all vps, 907 * vp_idx does not match 908 * Event is not global, vp_idx does not match 909 */ 910 if (IS_QLA2XXX_MIDTYPE(ha) && 911 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 912 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 913 break; 914 915 if (mb[2] == 0x7) { 916 ql_dbg(ql_dbg_async, vha, 0x5010, 917 "Port %s %04x %04x %04x.\n", 918 mb[1] == 0xffff ? "unavailable" : "logout", 919 mb[1], mb[2], mb[3]); 920 921 if (mb[1] == 0xffff) 922 goto global_port_update; 923 924 /* Port logout */ 925 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]); 926 if (!fcport) 927 break; 928 if (atomic_read(&fcport->state) != FCS_ONLINE) 929 break; 930 ql_dbg(ql_dbg_async, vha, 0x508a, 931 "Marking port lost loopid=%04x portid=%06x.\n", 932 fcport->loop_id, fcport->d_id.b24); 933 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 934 break; 935 936 global_port_update: 937 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 938 atomic_set(&vha->loop_state, LOOP_DOWN); 939 atomic_set(&vha->loop_down_timer, 940 LOOP_DOWN_TIME); 941 vha->device_flags |= DFLG_NO_CABLE; 942 qla2x00_mark_all_devices_lost(vha, 1); 943 } 944 945 if (vha->vp_idx) { 946 atomic_set(&vha->vp_state, VP_FAILED); 947 fc_vport_set_state(vha->fc_vport, 948 FC_VPORT_FAILED); 949 qla2x00_mark_all_devices_lost(vha, 1); 950 } 951 952 vha->flags.management_server_logged_in = 0; 953 ha->link_data_rate = PORT_SPEED_UNKNOWN; 954 break; 955 } 956 957 /* 958 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 959 * event etc. earlier indicating loop is down) then process 960 * it. Otherwise ignore it and Wait for RSCN to come in. 961 */ 962 atomic_set(&vha->loop_down_timer, 0); 963 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 964 atomic_read(&vha->loop_state) != LOOP_DEAD) { 965 ql_dbg(ql_dbg_async, vha, 0x5011, 966 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n", 967 mb[1], mb[2], mb[3]); 968 969 qlt_async_event(mb[0], vha, mb); 970 break; 971 } 972 973 ql_dbg(ql_dbg_async, vha, 0x5012, 974 "Port database changed %04x %04x %04x.\n", 975 mb[1], mb[2], mb[3]); 976 977 /* 978 * Mark all devices as missing so we will login again. 979 */ 980 atomic_set(&vha->loop_state, LOOP_UP); 981 982 qla2x00_mark_all_devices_lost(vha, 1); 983 984 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha)) 985 set_bit(SCR_PENDING, &vha->dpc_flags); 986 987 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 988 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 989 set_bit(VP_CONFIG_OK, &vha->vp_flags); 990 991 qlt_async_event(mb[0], vha, mb); 992 break; 993 994 case MBA_RSCN_UPDATE: /* State Change Registration */ 995 /* Check if the Vport has issued a SCR */ 996 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 997 break; 998 /* Only handle SCNs for our Vport index. */ 999 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 1000 break; 1001 1002 ql_dbg(ql_dbg_async, vha, 0x5013, 1003 "RSCN database changed -- %04x %04x %04x.\n", 1004 mb[1], mb[2], mb[3]); 1005 1006 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 1007 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 1008 | vha->d_id.b.al_pa; 1009 if (rscn_entry == host_pid) { 1010 ql_dbg(ql_dbg_async, vha, 0x5014, 1011 "Ignoring RSCN update to local host " 1012 "port ID (%06x).\n", host_pid); 1013 break; 1014 } 1015 1016 /* Ignore reserved bits from RSCN-payload. */ 1017 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 1018 1019 /* Skip RSCNs for virtual ports on the same physical port */ 1020 if (qla2x00_is_a_vp_did(vha, rscn_entry)) 1021 break; 1022 1023 /* 1024 * Search for the rport related to this RSCN entry and mark it 1025 * as lost. 1026 */ 1027 list_for_each_entry(fcport, &vha->vp_fcports, list) { 1028 if (atomic_read(&fcport->state) != FCS_ONLINE) 1029 continue; 1030 if (fcport->d_id.b24 == rscn_entry) { 1031 qla2x00_mark_device_lost(vha, fcport, 0, 0); 1032 break; 1033 } 1034 } 1035 1036 atomic_set(&vha->loop_down_timer, 0); 1037 vha->flags.management_server_logged_in = 0; 1038 1039 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 1040 set_bit(RSCN_UPDATE, &vha->dpc_flags); 1041 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 1042 break; 1043 1044 /* case MBA_RIO_RESPONSE: */ 1045 case MBA_ZIO_RESPONSE: 1046 ql_dbg(ql_dbg_async, vha, 0x5015, 1047 "[R|Z]IO update completion.\n"); 1048 1049 if (IS_FWI2_CAPABLE(ha)) 1050 qla24xx_process_response_queue(vha, rsp); 1051 else 1052 qla2x00_process_response_queue(rsp); 1053 break; 1054 1055 case MBA_DISCARD_RND_FRAME: 1056 ql_dbg(ql_dbg_async, vha, 0x5016, 1057 "Discard RND Frame -- %04x %04x %04x.\n", 1058 mb[1], mb[2], mb[3]); 1059 break; 1060 1061 case MBA_TRACE_NOTIFICATION: 1062 ql_dbg(ql_dbg_async, vha, 0x5017, 1063 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]); 1064 break; 1065 1066 case MBA_ISP84XX_ALERT: 1067 ql_dbg(ql_dbg_async, vha, 0x5018, 1068 "ISP84XX Alert Notification -- %04x %04x %04x.\n", 1069 mb[1], mb[2], mb[3]); 1070 1071 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 1072 switch (mb[1]) { 1073 case A84_PANIC_RECOVERY: 1074 ql_log(ql_log_info, vha, 0x5019, 1075 "Alert 84XX: panic recovery %04x %04x.\n", 1076 mb[2], mb[3]); 1077 break; 1078 case A84_OP_LOGIN_COMPLETE: 1079 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 1080 ql_log(ql_log_info, vha, 0x501a, 1081 "Alert 84XX: firmware version %x.\n", 1082 ha->cs84xx->op_fw_version); 1083 break; 1084 case A84_DIAG_LOGIN_COMPLETE: 1085 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1086 ql_log(ql_log_info, vha, 0x501b, 1087 "Alert 84XX: diagnostic firmware version %x.\n", 1088 ha->cs84xx->diag_fw_version); 1089 break; 1090 case A84_GOLD_LOGIN_COMPLETE: 1091 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1092 ha->cs84xx->fw_update = 1; 1093 ql_log(ql_log_info, vha, 0x501c, 1094 "Alert 84XX: gold firmware version %x.\n", 1095 ha->cs84xx->gold_fw_version); 1096 break; 1097 default: 1098 ql_log(ql_log_warn, vha, 0x501d, 1099 "Alert 84xx: Invalid Alert %04x %04x %04x.\n", 1100 mb[1], mb[2], mb[3]); 1101 } 1102 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 1103 break; 1104 case MBA_DCBX_START: 1105 ql_dbg(ql_dbg_async, vha, 0x501e, 1106 "DCBX Started -- %04x %04x %04x.\n", 1107 mb[1], mb[2], mb[3]); 1108 break; 1109 case MBA_DCBX_PARAM_UPDATE: 1110 ql_dbg(ql_dbg_async, vha, 0x501f, 1111 "DCBX Parameters Updated -- %04x %04x %04x.\n", 1112 mb[1], mb[2], mb[3]); 1113 break; 1114 case MBA_FCF_CONF_ERR: 1115 ql_dbg(ql_dbg_async, vha, 0x5020, 1116 "FCF Configuration Error -- %04x %04x %04x.\n", 1117 mb[1], mb[2], mb[3]); 1118 break; 1119 case MBA_IDC_NOTIFY: 1120 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) { 1121 mb[4] = RD_REG_WORD(®24->mailbox4); 1122 if (((mb[2] & 0x7fff) == MBC_PORT_RESET || 1123 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) && 1124 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) { 1125 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 1126 /* 1127 * Extend loop down timer since port is active. 1128 */ 1129 if (atomic_read(&vha->loop_state) == LOOP_DOWN) 1130 atomic_set(&vha->loop_down_timer, 1131 LOOP_DOWN_TIME); 1132 qla2xxx_wake_dpc(vha); 1133 } 1134 } 1135 case MBA_IDC_COMPLETE: 1136 if (ha->notify_lb_portup_comp && !vha->vp_idx) 1137 complete(&ha->lb_portup_comp); 1138 /* Fallthru */ 1139 case MBA_IDC_TIME_EXT: 1140 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || 1141 IS_QLA8044(ha)) 1142 qla81xx_idc_event(vha, mb[0], mb[1]); 1143 break; 1144 1145 case MBA_IDC_AEN: 1146 mb[4] = RD_REG_WORD(®24->mailbox4); 1147 mb[5] = RD_REG_WORD(®24->mailbox5); 1148 mb[6] = RD_REG_WORD(®24->mailbox6); 1149 mb[7] = RD_REG_WORD(®24->mailbox7); 1150 qla83xx_handle_8200_aen(vha, mb); 1151 break; 1152 1153 case MBA_DPORT_DIAGNOSTICS: 1154 ql_dbg(ql_dbg_async, vha, 0x5052, 1155 "D-Port Diagnostics: %04x %04x=%s\n", mb[0], mb[1], 1156 mb[1] == 0 ? "start" : 1157 mb[1] == 1 ? "done (ok)" : 1158 mb[1] == 2 ? "done (error)" : "other"); 1159 break; 1160 1161 default: 1162 ql_dbg(ql_dbg_async, vha, 0x5057, 1163 "Unknown AEN:%04x %04x %04x %04x\n", 1164 mb[0], mb[1], mb[2], mb[3]); 1165 } 1166 1167 qlt_async_event(mb[0], vha, mb); 1168 1169 if (!vha->vp_idx && ha->num_vhosts) 1170 qla2x00_alert_all_vps(rsp, mb); 1171 } 1172 1173 /** 1174 * qla2x00_process_completed_request() - Process a Fast Post response. 1175 * @ha: SCSI driver HA context 1176 * @index: SRB index 1177 */ 1178 void 1179 qla2x00_process_completed_request(struct scsi_qla_host *vha, 1180 struct req_que *req, uint32_t index) 1181 { 1182 srb_t *sp; 1183 struct qla_hw_data *ha = vha->hw; 1184 1185 /* Validate handle. */ 1186 if (index >= req->num_outstanding_cmds) { 1187 ql_log(ql_log_warn, vha, 0x3014, 1188 "Invalid SCSI command index (%x).\n", index); 1189 1190 if (IS_P3P_TYPE(ha)) 1191 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1192 else 1193 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1194 return; 1195 } 1196 1197 sp = req->outstanding_cmds[index]; 1198 if (sp) { 1199 /* Free outstanding command slot. */ 1200 req->outstanding_cmds[index] = NULL; 1201 1202 /* Save ISP completion status */ 1203 sp->done(ha, sp, DID_OK << 16); 1204 } else { 1205 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n"); 1206 1207 if (IS_P3P_TYPE(ha)) 1208 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1209 else 1210 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1211 } 1212 } 1213 1214 srb_t * 1215 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 1216 struct req_que *req, void *iocb) 1217 { 1218 struct qla_hw_data *ha = vha->hw; 1219 sts_entry_t *pkt = iocb; 1220 srb_t *sp = NULL; 1221 uint16_t index; 1222 1223 index = LSW(pkt->handle); 1224 if (index >= req->num_outstanding_cmds) { 1225 ql_log(ql_log_warn, vha, 0x5031, 1226 "Invalid command index (%x).\n", index); 1227 if (IS_P3P_TYPE(ha)) 1228 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1229 else 1230 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1231 goto done; 1232 } 1233 sp = req->outstanding_cmds[index]; 1234 if (!sp) { 1235 ql_log(ql_log_warn, vha, 0x5032, 1236 "Invalid completion handle (%x) -- timed-out.\n", index); 1237 return sp; 1238 } 1239 if (sp->handle != index) { 1240 ql_log(ql_log_warn, vha, 0x5033, 1241 "SRB handle (%x) mismatch %x.\n", sp->handle, index); 1242 return NULL; 1243 } 1244 1245 req->outstanding_cmds[index] = NULL; 1246 1247 done: 1248 return sp; 1249 } 1250 1251 static void 1252 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 1253 struct mbx_entry *mbx) 1254 { 1255 const char func[] = "MBX-IOCB"; 1256 const char *type; 1257 fc_port_t *fcport; 1258 srb_t *sp; 1259 struct srb_iocb *lio; 1260 uint16_t *data; 1261 uint16_t status; 1262 1263 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 1264 if (!sp) 1265 return; 1266 1267 lio = &sp->u.iocb_cmd; 1268 type = sp->name; 1269 fcport = sp->fcport; 1270 data = lio->u.logio.data; 1271 1272 data[0] = MBS_COMMAND_ERROR; 1273 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1274 QLA_LOGIO_LOGIN_RETRIED : 0; 1275 if (mbx->entry_status) { 1276 ql_dbg(ql_dbg_async, vha, 0x5043, 1277 "Async-%s error entry - hdl=%x portid=%02x%02x%02x " 1278 "entry-status=%x status=%x state-flag=%x " 1279 "status-flags=%x.\n", type, sp->handle, 1280 fcport->d_id.b.domain, fcport->d_id.b.area, 1281 fcport->d_id.b.al_pa, mbx->entry_status, 1282 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 1283 le16_to_cpu(mbx->status_flags)); 1284 1285 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029, 1286 (uint8_t *)mbx, sizeof(*mbx)); 1287 1288 goto logio_done; 1289 } 1290 1291 status = le16_to_cpu(mbx->status); 1292 if (status == 0x30 && sp->type == SRB_LOGIN_CMD && 1293 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 1294 status = 0; 1295 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 1296 ql_dbg(ql_dbg_async, vha, 0x5045, 1297 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n", 1298 type, sp->handle, fcport->d_id.b.domain, 1299 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1300 le16_to_cpu(mbx->mb1)); 1301 1302 data[0] = MBS_COMMAND_COMPLETE; 1303 if (sp->type == SRB_LOGIN_CMD) { 1304 fcport->port_type = FCT_TARGET; 1305 if (le16_to_cpu(mbx->mb1) & BIT_0) 1306 fcport->port_type = FCT_INITIATOR; 1307 else if (le16_to_cpu(mbx->mb1) & BIT_1) 1308 fcport->flags |= FCF_FCP2_DEVICE; 1309 } 1310 goto logio_done; 1311 } 1312 1313 data[0] = le16_to_cpu(mbx->mb0); 1314 switch (data[0]) { 1315 case MBS_PORT_ID_USED: 1316 data[1] = le16_to_cpu(mbx->mb1); 1317 break; 1318 case MBS_LOOP_ID_USED: 1319 break; 1320 default: 1321 data[0] = MBS_COMMAND_ERROR; 1322 break; 1323 } 1324 1325 ql_log(ql_log_warn, vha, 0x5046, 1326 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x " 1327 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle, 1328 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, 1329 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 1330 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 1331 le16_to_cpu(mbx->mb7)); 1332 1333 logio_done: 1334 sp->done(vha, sp, 0); 1335 } 1336 1337 static void 1338 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1339 sts_entry_t *pkt, int iocb_type) 1340 { 1341 const char func[] = "CT_IOCB"; 1342 const char *type; 1343 srb_t *sp; 1344 struct fc_bsg_job *bsg_job; 1345 uint16_t comp_status; 1346 int res; 1347 1348 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1349 if (!sp) 1350 return; 1351 1352 bsg_job = sp->u.bsg_job; 1353 1354 type = "ct pass-through"; 1355 1356 comp_status = le16_to_cpu(pkt->comp_status); 1357 1358 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1359 * fc payload to the caller 1360 */ 1361 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1362 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1363 1364 if (comp_status != CS_COMPLETE) { 1365 if (comp_status == CS_DATA_UNDERRUN) { 1366 res = DID_OK << 16; 1367 bsg_job->reply->reply_payload_rcv_len = 1368 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1369 1370 ql_log(ql_log_warn, vha, 0x5048, 1371 "CT pass-through-%s error " 1372 "comp_status-status=0x%x total_byte = 0x%x.\n", 1373 type, comp_status, 1374 bsg_job->reply->reply_payload_rcv_len); 1375 } else { 1376 ql_log(ql_log_warn, vha, 0x5049, 1377 "CT pass-through-%s error " 1378 "comp_status-status=0x%x.\n", type, comp_status); 1379 res = DID_ERROR << 16; 1380 bsg_job->reply->reply_payload_rcv_len = 0; 1381 } 1382 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035, 1383 (uint8_t *)pkt, sizeof(*pkt)); 1384 } else { 1385 res = DID_OK << 16; 1386 bsg_job->reply->reply_payload_rcv_len = 1387 bsg_job->reply_payload.payload_len; 1388 bsg_job->reply_len = 0; 1389 } 1390 1391 sp->done(vha, sp, res); 1392 } 1393 1394 static void 1395 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1396 struct sts_entry_24xx *pkt, int iocb_type) 1397 { 1398 const char func[] = "ELS_CT_IOCB"; 1399 const char *type; 1400 srb_t *sp; 1401 struct fc_bsg_job *bsg_job; 1402 uint16_t comp_status; 1403 uint32_t fw_status[3]; 1404 uint8_t* fw_sts_ptr; 1405 int res; 1406 1407 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1408 if (!sp) 1409 return; 1410 bsg_job = sp->u.bsg_job; 1411 1412 type = NULL; 1413 switch (sp->type) { 1414 case SRB_ELS_CMD_RPT: 1415 case SRB_ELS_CMD_HST: 1416 type = "els"; 1417 break; 1418 case SRB_CT_CMD: 1419 type = "ct pass-through"; 1420 break; 1421 case SRB_ELS_DCMD: 1422 type = "Driver ELS logo"; 1423 ql_dbg(ql_dbg_user, vha, 0x5047, 1424 "Completing %s: (%p) type=%d.\n", type, sp, sp->type); 1425 sp->done(vha, sp, 0); 1426 return; 1427 default: 1428 ql_dbg(ql_dbg_user, vha, 0x503e, 1429 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type); 1430 return; 1431 } 1432 1433 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1434 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1435 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1436 1437 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1438 * fc payload to the caller 1439 */ 1440 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1441 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1442 1443 if (comp_status != CS_COMPLETE) { 1444 if (comp_status == CS_DATA_UNDERRUN) { 1445 res = DID_OK << 16; 1446 bsg_job->reply->reply_payload_rcv_len = 1447 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count); 1448 1449 ql_dbg(ql_dbg_user, vha, 0x503f, 1450 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1451 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1452 type, sp->handle, comp_status, fw_status[1], fw_status[2], 1453 le16_to_cpu(((struct els_sts_entry_24xx *) 1454 pkt)->total_byte_count)); 1455 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1456 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1457 } 1458 else { 1459 ql_dbg(ql_dbg_user, vha, 0x5040, 1460 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1461 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1462 type, sp->handle, comp_status, 1463 le16_to_cpu(((struct els_sts_entry_24xx *) 1464 pkt)->error_subcode_1), 1465 le16_to_cpu(((struct els_sts_entry_24xx *) 1466 pkt)->error_subcode_2)); 1467 res = DID_ERROR << 16; 1468 bsg_job->reply->reply_payload_rcv_len = 0; 1469 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1470 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1471 } 1472 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056, 1473 (uint8_t *)pkt, sizeof(*pkt)); 1474 } 1475 else { 1476 res = DID_OK << 16; 1477 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1478 bsg_job->reply_len = 0; 1479 } 1480 1481 sp->done(vha, sp, res); 1482 } 1483 1484 static void 1485 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1486 struct logio_entry_24xx *logio) 1487 { 1488 const char func[] = "LOGIO-IOCB"; 1489 const char *type; 1490 fc_port_t *fcport; 1491 srb_t *sp; 1492 struct srb_iocb *lio; 1493 uint16_t *data; 1494 uint32_t iop[2]; 1495 1496 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1497 if (!sp) 1498 return; 1499 1500 lio = &sp->u.iocb_cmd; 1501 type = sp->name; 1502 fcport = sp->fcport; 1503 data = lio->u.logio.data; 1504 1505 data[0] = MBS_COMMAND_ERROR; 1506 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1507 QLA_LOGIO_LOGIN_RETRIED : 0; 1508 if (logio->entry_status) { 1509 ql_log(ql_log_warn, fcport->vha, 0x5034, 1510 "Async-%s error entry - hdl=%x" 1511 "portid=%02x%02x%02x entry-status=%x.\n", 1512 type, sp->handle, fcport->d_id.b.domain, 1513 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1514 logio->entry_status); 1515 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d, 1516 (uint8_t *)logio, sizeof(*logio)); 1517 1518 goto logio_done; 1519 } 1520 1521 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1522 ql_dbg(ql_dbg_async, fcport->vha, 0x5036, 1523 "Async-%s complete - hdl=%x portid=%02x%02x%02x " 1524 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1525 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1526 le32_to_cpu(logio->io_parameter[0])); 1527 1528 data[0] = MBS_COMMAND_COMPLETE; 1529 if (sp->type != SRB_LOGIN_CMD) 1530 goto logio_done; 1531 1532 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1533 if (iop[0] & BIT_4) { 1534 fcport->port_type = FCT_TARGET; 1535 if (iop[0] & BIT_8) 1536 fcport->flags |= FCF_FCP2_DEVICE; 1537 } else if (iop[0] & BIT_5) 1538 fcport->port_type = FCT_INITIATOR; 1539 1540 if (iop[0] & BIT_7) 1541 fcport->flags |= FCF_CONF_COMP_SUPPORTED; 1542 1543 if (logio->io_parameter[7] || logio->io_parameter[8]) 1544 fcport->supported_classes |= FC_COS_CLASS2; 1545 if (logio->io_parameter[9] || logio->io_parameter[10]) 1546 fcport->supported_classes |= FC_COS_CLASS3; 1547 1548 goto logio_done; 1549 } 1550 1551 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1552 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1553 switch (iop[0]) { 1554 case LSC_SCODE_PORTID_USED: 1555 data[0] = MBS_PORT_ID_USED; 1556 data[1] = LSW(iop[1]); 1557 break; 1558 case LSC_SCODE_NPORT_USED: 1559 data[0] = MBS_LOOP_ID_USED; 1560 break; 1561 default: 1562 data[0] = MBS_COMMAND_ERROR; 1563 break; 1564 } 1565 1566 ql_dbg(ql_dbg_async, fcport->vha, 0x5037, 1567 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x " 1568 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1569 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1570 le16_to_cpu(logio->comp_status), 1571 le32_to_cpu(logio->io_parameter[0]), 1572 le32_to_cpu(logio->io_parameter[1])); 1573 1574 logio_done: 1575 sp->done(vha, sp, 0); 1576 } 1577 1578 static void 1579 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk) 1580 { 1581 const char func[] = "TMF-IOCB"; 1582 const char *type; 1583 fc_port_t *fcport; 1584 srb_t *sp; 1585 struct srb_iocb *iocb; 1586 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; 1587 1588 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); 1589 if (!sp) 1590 return; 1591 1592 iocb = &sp->u.iocb_cmd; 1593 type = sp->name; 1594 fcport = sp->fcport; 1595 iocb->u.tmf.data = QLA_SUCCESS; 1596 1597 if (sts->entry_status) { 1598 ql_log(ql_log_warn, fcport->vha, 0x5038, 1599 "Async-%s error - hdl=%x entry-status(%x).\n", 1600 type, sp->handle, sts->entry_status); 1601 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1602 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) { 1603 ql_log(ql_log_warn, fcport->vha, 0x5039, 1604 "Async-%s error - hdl=%x completion status(%x).\n", 1605 type, sp->handle, sts->comp_status); 1606 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1607 } else if ((le16_to_cpu(sts->scsi_status) & 1608 SS_RESPONSE_INFO_LEN_VALID)) { 1609 if (le32_to_cpu(sts->rsp_data_len) < 4) { 1610 ql_log(ql_log_warn, fcport->vha, 0x503b, 1611 "Async-%s error - hdl=%x not enough response(%d).\n", 1612 type, sp->handle, sts->rsp_data_len); 1613 } else if (sts->data[3]) { 1614 ql_log(ql_log_warn, fcport->vha, 0x503c, 1615 "Async-%s error - hdl=%x response(%x).\n", 1616 type, sp->handle, sts->data[3]); 1617 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1618 } 1619 } 1620 1621 if (iocb->u.tmf.data != QLA_SUCCESS) 1622 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055, 1623 (uint8_t *)sts, sizeof(*sts)); 1624 1625 sp->done(vha, sp, 0); 1626 } 1627 1628 /** 1629 * qla2x00_process_response_queue() - Process response queue entries. 1630 * @ha: SCSI driver HA context 1631 */ 1632 void 1633 qla2x00_process_response_queue(struct rsp_que *rsp) 1634 { 1635 struct scsi_qla_host *vha; 1636 struct qla_hw_data *ha = rsp->hw; 1637 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1638 sts_entry_t *pkt; 1639 uint16_t handle_cnt; 1640 uint16_t cnt; 1641 1642 vha = pci_get_drvdata(ha->pdev); 1643 1644 if (!vha->flags.online) 1645 return; 1646 1647 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1648 pkt = (sts_entry_t *)rsp->ring_ptr; 1649 1650 rsp->ring_index++; 1651 if (rsp->ring_index == rsp->length) { 1652 rsp->ring_index = 0; 1653 rsp->ring_ptr = rsp->ring; 1654 } else { 1655 rsp->ring_ptr++; 1656 } 1657 1658 if (pkt->entry_status != 0) { 1659 qla2x00_error_entry(vha, rsp, pkt); 1660 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1661 wmb(); 1662 continue; 1663 } 1664 1665 switch (pkt->entry_type) { 1666 case STATUS_TYPE: 1667 qla2x00_status_entry(vha, rsp, pkt); 1668 break; 1669 case STATUS_TYPE_21: 1670 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 1671 for (cnt = 0; cnt < handle_cnt; cnt++) { 1672 qla2x00_process_completed_request(vha, rsp->req, 1673 ((sts21_entry_t *)pkt)->handle[cnt]); 1674 } 1675 break; 1676 case STATUS_TYPE_22: 1677 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 1678 for (cnt = 0; cnt < handle_cnt; cnt++) { 1679 qla2x00_process_completed_request(vha, rsp->req, 1680 ((sts22_entry_t *)pkt)->handle[cnt]); 1681 } 1682 break; 1683 case STATUS_CONT_TYPE: 1684 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1685 break; 1686 case MBX_IOCB_TYPE: 1687 qla2x00_mbx_iocb_entry(vha, rsp->req, 1688 (struct mbx_entry *)pkt); 1689 break; 1690 case CT_IOCB_TYPE: 1691 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 1692 break; 1693 default: 1694 /* Type Not Supported. */ 1695 ql_log(ql_log_warn, vha, 0x504a, 1696 "Received unknown response pkt type %x " 1697 "entry status=%x.\n", 1698 pkt->entry_type, pkt->entry_status); 1699 break; 1700 } 1701 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1702 wmb(); 1703 } 1704 1705 /* Adjust ring index */ 1706 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); 1707 } 1708 1709 static inline void 1710 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len, 1711 uint32_t sense_len, struct rsp_que *rsp, int res) 1712 { 1713 struct scsi_qla_host *vha = sp->fcport->vha; 1714 struct scsi_cmnd *cp = GET_CMD_SP(sp); 1715 uint32_t track_sense_len; 1716 1717 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 1718 sense_len = SCSI_SENSE_BUFFERSIZE; 1719 1720 SET_CMD_SENSE_LEN(sp, sense_len); 1721 SET_CMD_SENSE_PTR(sp, cp->sense_buffer); 1722 track_sense_len = sense_len; 1723 1724 if (sense_len > par_sense_len) 1725 sense_len = par_sense_len; 1726 1727 memcpy(cp->sense_buffer, sense_data, sense_len); 1728 1729 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len); 1730 track_sense_len -= sense_len; 1731 SET_CMD_SENSE_LEN(sp, track_sense_len); 1732 1733 if (track_sense_len != 0) { 1734 rsp->status_srb = sp; 1735 cp->result = res; 1736 } 1737 1738 if (sense_len) { 1739 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c, 1740 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n", 1741 sp->fcport->vha->host_no, cp->device->id, cp->device->lun, 1742 cp); 1743 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b, 1744 cp->sense_buffer, sense_len); 1745 } 1746 } 1747 1748 struct scsi_dif_tuple { 1749 __be16 guard; /* Checksum */ 1750 __be16 app_tag; /* APPL identifier */ 1751 __be32 ref_tag; /* Target LBA or indirect LBA */ 1752 }; 1753 1754 /* 1755 * Checks the guard or meta-data for the type of error 1756 * detected by the HBA. In case of errors, we set the 1757 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1758 * to indicate to the kernel that the HBA detected error. 1759 */ 1760 static inline int 1761 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1762 { 1763 struct scsi_qla_host *vha = sp->fcport->vha; 1764 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1765 uint8_t *ap = &sts24->data[12]; 1766 uint8_t *ep = &sts24->data[20]; 1767 uint32_t e_ref_tag, a_ref_tag; 1768 uint16_t e_app_tag, a_app_tag; 1769 uint16_t e_guard, a_guard; 1770 1771 /* 1772 * swab32 of the "data" field in the beginning of qla2x00_status_entry() 1773 * would make guard field appear at offset 2 1774 */ 1775 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2)); 1776 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0)); 1777 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4)); 1778 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2)); 1779 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0)); 1780 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4)); 1781 1782 ql_dbg(ql_dbg_io, vha, 0x3023, 1783 "iocb(s) %p Returned STATUS.\n", sts24); 1784 1785 ql_dbg(ql_dbg_io, vha, 0x3024, 1786 "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1787 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1788 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n", 1789 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1790 a_app_tag, e_app_tag, a_guard, e_guard); 1791 1792 /* 1793 * Ignore sector if: 1794 * For type 3: ref & app tag is all 'f's 1795 * For type 0,1,2: app tag is all 'f's 1796 */ 1797 if ((a_app_tag == 0xffff) && 1798 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) || 1799 (a_ref_tag == 0xffffffff))) { 1800 uint32_t blocks_done, resid; 1801 sector_t lba_s = scsi_get_lba(cmd); 1802 1803 /* 2TB boundary case covered automatically with this */ 1804 blocks_done = e_ref_tag - (uint32_t)lba_s + 1; 1805 1806 resid = scsi_bufflen(cmd) - (blocks_done * 1807 cmd->device->sector_size); 1808 1809 scsi_set_resid(cmd, resid); 1810 cmd->result = DID_OK << 16; 1811 1812 /* Update protection tag */ 1813 if (scsi_prot_sg_count(cmd)) { 1814 uint32_t i, j = 0, k = 0, num_ent; 1815 struct scatterlist *sg; 1816 struct sd_dif_tuple *spt; 1817 1818 /* Patch the corresponding protection tags */ 1819 scsi_for_each_prot_sg(cmd, sg, 1820 scsi_prot_sg_count(cmd), i) { 1821 num_ent = sg_dma_len(sg) / 8; 1822 if (k + num_ent < blocks_done) { 1823 k += num_ent; 1824 continue; 1825 } 1826 j = blocks_done - k - 1; 1827 k = blocks_done; 1828 break; 1829 } 1830 1831 if (k != blocks_done) { 1832 ql_log(ql_log_warn, vha, 0x302f, 1833 "unexpected tag values tag:lba=%x:%llx)\n", 1834 e_ref_tag, (unsigned long long)lba_s); 1835 return 1; 1836 } 1837 1838 spt = page_address(sg_page(sg)) + sg->offset; 1839 spt += j; 1840 1841 spt->app_tag = 0xffff; 1842 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3) 1843 spt->ref_tag = 0xffffffff; 1844 } 1845 1846 return 0; 1847 } 1848 1849 /* check guard */ 1850 if (e_guard != a_guard) { 1851 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1852 0x10, 0x1); 1853 set_driver_byte(cmd, DRIVER_SENSE); 1854 set_host_byte(cmd, DID_ABORT); 1855 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1856 return 1; 1857 } 1858 1859 /* check ref tag */ 1860 if (e_ref_tag != a_ref_tag) { 1861 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1862 0x10, 0x3); 1863 set_driver_byte(cmd, DRIVER_SENSE); 1864 set_host_byte(cmd, DID_ABORT); 1865 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1866 return 1; 1867 } 1868 1869 /* check appl tag */ 1870 if (e_app_tag != a_app_tag) { 1871 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1872 0x10, 0x2); 1873 set_driver_byte(cmd, DRIVER_SENSE); 1874 set_host_byte(cmd, DID_ABORT); 1875 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1876 return 1; 1877 } 1878 1879 return 1; 1880 } 1881 1882 static void 1883 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt, 1884 struct req_que *req, uint32_t index) 1885 { 1886 struct qla_hw_data *ha = vha->hw; 1887 srb_t *sp; 1888 uint16_t comp_status; 1889 uint16_t scsi_status; 1890 uint16_t thread_id; 1891 uint32_t rval = EXT_STATUS_OK; 1892 struct fc_bsg_job *bsg_job = NULL; 1893 sts_entry_t *sts; 1894 struct sts_entry_24xx *sts24; 1895 sts = (sts_entry_t *) pkt; 1896 sts24 = (struct sts_entry_24xx *) pkt; 1897 1898 /* Validate handle. */ 1899 if (index >= req->num_outstanding_cmds) { 1900 ql_log(ql_log_warn, vha, 0x70af, 1901 "Invalid SCSI completion handle 0x%x.\n", index); 1902 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1903 return; 1904 } 1905 1906 sp = req->outstanding_cmds[index]; 1907 if (sp) { 1908 /* Free outstanding command slot. */ 1909 req->outstanding_cmds[index] = NULL; 1910 bsg_job = sp->u.bsg_job; 1911 } else { 1912 ql_log(ql_log_warn, vha, 0x70b0, 1913 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n", 1914 req->id, index); 1915 1916 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1917 return; 1918 } 1919 1920 if (IS_FWI2_CAPABLE(ha)) { 1921 comp_status = le16_to_cpu(sts24->comp_status); 1922 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1923 } else { 1924 comp_status = le16_to_cpu(sts->comp_status); 1925 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1926 } 1927 1928 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1]; 1929 switch (comp_status) { 1930 case CS_COMPLETE: 1931 if (scsi_status == 0) { 1932 bsg_job->reply->reply_payload_rcv_len = 1933 bsg_job->reply_payload.payload_len; 1934 vha->qla_stats.input_bytes += 1935 bsg_job->reply->reply_payload_rcv_len; 1936 vha->qla_stats.input_requests++; 1937 rval = EXT_STATUS_OK; 1938 } 1939 goto done; 1940 1941 case CS_DATA_OVERRUN: 1942 ql_dbg(ql_dbg_user, vha, 0x70b1, 1943 "Command completed with date overrun thread_id=%d\n", 1944 thread_id); 1945 rval = EXT_STATUS_DATA_OVERRUN; 1946 break; 1947 1948 case CS_DATA_UNDERRUN: 1949 ql_dbg(ql_dbg_user, vha, 0x70b2, 1950 "Command completed with date underrun thread_id=%d\n", 1951 thread_id); 1952 rval = EXT_STATUS_DATA_UNDERRUN; 1953 break; 1954 case CS_BIDIR_RD_OVERRUN: 1955 ql_dbg(ql_dbg_user, vha, 0x70b3, 1956 "Command completed with read data overrun thread_id=%d\n", 1957 thread_id); 1958 rval = EXT_STATUS_DATA_OVERRUN; 1959 break; 1960 1961 case CS_BIDIR_RD_WR_OVERRUN: 1962 ql_dbg(ql_dbg_user, vha, 0x70b4, 1963 "Command completed with read and write data overrun " 1964 "thread_id=%d\n", thread_id); 1965 rval = EXT_STATUS_DATA_OVERRUN; 1966 break; 1967 1968 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN: 1969 ql_dbg(ql_dbg_user, vha, 0x70b5, 1970 "Command completed with read data over and write data " 1971 "underrun thread_id=%d\n", thread_id); 1972 rval = EXT_STATUS_DATA_OVERRUN; 1973 break; 1974 1975 case CS_BIDIR_RD_UNDERRUN: 1976 ql_dbg(ql_dbg_user, vha, 0x70b6, 1977 "Command completed with read data data underrun " 1978 "thread_id=%d\n", thread_id); 1979 rval = EXT_STATUS_DATA_UNDERRUN; 1980 break; 1981 1982 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN: 1983 ql_dbg(ql_dbg_user, vha, 0x70b7, 1984 "Command completed with read data under and write data " 1985 "overrun thread_id=%d\n", thread_id); 1986 rval = EXT_STATUS_DATA_UNDERRUN; 1987 break; 1988 1989 case CS_BIDIR_RD_WR_UNDERRUN: 1990 ql_dbg(ql_dbg_user, vha, 0x70b8, 1991 "Command completed with read and write data underrun " 1992 "thread_id=%d\n", thread_id); 1993 rval = EXT_STATUS_DATA_UNDERRUN; 1994 break; 1995 1996 case CS_BIDIR_DMA: 1997 ql_dbg(ql_dbg_user, vha, 0x70b9, 1998 "Command completed with data DMA error thread_id=%d\n", 1999 thread_id); 2000 rval = EXT_STATUS_DMA_ERR; 2001 break; 2002 2003 case CS_TIMEOUT: 2004 ql_dbg(ql_dbg_user, vha, 0x70ba, 2005 "Command completed with timeout thread_id=%d\n", 2006 thread_id); 2007 rval = EXT_STATUS_TIMEOUT; 2008 break; 2009 default: 2010 ql_dbg(ql_dbg_user, vha, 0x70bb, 2011 "Command completed with completion status=0x%x " 2012 "thread_id=%d\n", comp_status, thread_id); 2013 rval = EXT_STATUS_ERR; 2014 break; 2015 } 2016 bsg_job->reply->reply_payload_rcv_len = 0; 2017 2018 done: 2019 /* Return the vendor specific reply to API */ 2020 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval; 2021 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 2022 /* Always return DID_OK, bsg will send the vendor specific response 2023 * in this case only */ 2024 sp->done(vha, sp, (DID_OK << 6)); 2025 2026 } 2027 2028 /** 2029 * qla2x00_status_entry() - Process a Status IOCB entry. 2030 * @ha: SCSI driver HA context 2031 * @pkt: Entry pointer 2032 */ 2033 static void 2034 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 2035 { 2036 srb_t *sp; 2037 fc_port_t *fcport; 2038 struct scsi_cmnd *cp; 2039 sts_entry_t *sts; 2040 struct sts_entry_24xx *sts24; 2041 uint16_t comp_status; 2042 uint16_t scsi_status; 2043 uint16_t ox_id; 2044 uint8_t lscsi_status; 2045 int32_t resid; 2046 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 2047 fw_resid_len; 2048 uint8_t *rsp_info, *sense_data; 2049 struct qla_hw_data *ha = vha->hw; 2050 uint32_t handle; 2051 uint16_t que; 2052 struct req_que *req; 2053 int logit = 1; 2054 int res = 0; 2055 uint16_t state_flags = 0; 2056 uint16_t retry_delay = 0; 2057 2058 sts = (sts_entry_t *) pkt; 2059 sts24 = (struct sts_entry_24xx *) pkt; 2060 if (IS_FWI2_CAPABLE(ha)) { 2061 comp_status = le16_to_cpu(sts24->comp_status); 2062 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 2063 state_flags = le16_to_cpu(sts24->state_flags); 2064 } else { 2065 comp_status = le16_to_cpu(sts->comp_status); 2066 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 2067 } 2068 handle = (uint32_t) LSW(sts->handle); 2069 que = MSW(sts->handle); 2070 req = ha->req_q_map[que]; 2071 2072 /* Check for invalid queue pointer */ 2073 if (req == NULL || 2074 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) { 2075 ql_dbg(ql_dbg_io, vha, 0x3059, 2076 "Invalid status handle (0x%x): Bad req pointer. req=%p, " 2077 "que=%u.\n", sts->handle, req, que); 2078 return; 2079 } 2080 2081 /* Validate handle. */ 2082 if (handle < req->num_outstanding_cmds) { 2083 sp = req->outstanding_cmds[handle]; 2084 if (!sp) { 2085 ql_dbg(ql_dbg_io, vha, 0x3075, 2086 "%s(%ld): Already returned command for status handle (0x%x).\n", 2087 __func__, vha->host_no, sts->handle); 2088 return; 2089 } 2090 } else { 2091 ql_dbg(ql_dbg_io, vha, 0x3017, 2092 "Invalid status handle, out of range (0x%x).\n", 2093 sts->handle); 2094 2095 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 2096 if (IS_P3P_TYPE(ha)) 2097 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 2098 else 2099 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2100 qla2xxx_wake_dpc(vha); 2101 } 2102 return; 2103 } 2104 2105 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) { 2106 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle); 2107 return; 2108 } 2109 2110 /* Task Management completion. */ 2111 if (sp->type == SRB_TM_CMD) { 2112 qla24xx_tm_iocb_entry(vha, req, pkt); 2113 return; 2114 } 2115 2116 /* Fast path completion. */ 2117 if (comp_status == CS_COMPLETE && scsi_status == 0) { 2118 qla2x00_process_completed_request(vha, req, handle); 2119 2120 return; 2121 } 2122 2123 req->outstanding_cmds[handle] = NULL; 2124 cp = GET_CMD_SP(sp); 2125 if (cp == NULL) { 2126 ql_dbg(ql_dbg_io, vha, 0x3018, 2127 "Command already returned (0x%x/%p).\n", 2128 sts->handle, sp); 2129 2130 return; 2131 } 2132 2133 lscsi_status = scsi_status & STATUS_MASK; 2134 2135 fcport = sp->fcport; 2136 2137 ox_id = 0; 2138 sense_len = par_sense_len = rsp_info_len = resid_len = 2139 fw_resid_len = 0; 2140 if (IS_FWI2_CAPABLE(ha)) { 2141 if (scsi_status & SS_SENSE_LEN_VALID) 2142 sense_len = le32_to_cpu(sts24->sense_len); 2143 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2144 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 2145 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 2146 resid_len = le32_to_cpu(sts24->rsp_residual_count); 2147 if (comp_status == CS_DATA_UNDERRUN) 2148 fw_resid_len = le32_to_cpu(sts24->residual_len); 2149 rsp_info = sts24->data; 2150 sense_data = sts24->data; 2151 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 2152 ox_id = le16_to_cpu(sts24->ox_id); 2153 par_sense_len = sizeof(sts24->data); 2154 /* Valid values of the retry delay timer are 0x1-0xffef */ 2155 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) 2156 retry_delay = sts24->retry_delay; 2157 } else { 2158 if (scsi_status & SS_SENSE_LEN_VALID) 2159 sense_len = le16_to_cpu(sts->req_sense_length); 2160 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2161 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 2162 resid_len = le32_to_cpu(sts->residual_length); 2163 rsp_info = sts->rsp_info; 2164 sense_data = sts->req_sense_data; 2165 par_sense_len = sizeof(sts->req_sense_data); 2166 } 2167 2168 /* Check for any FCP transport errors. */ 2169 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 2170 /* Sense data lies beyond any FCP RESPONSE data. */ 2171 if (IS_FWI2_CAPABLE(ha)) { 2172 sense_data += rsp_info_len; 2173 par_sense_len -= rsp_info_len; 2174 } 2175 if (rsp_info_len > 3 && rsp_info[3]) { 2176 ql_dbg(ql_dbg_io, fcport->vha, 0x3019, 2177 "FCP I/O protocol failure (0x%x/0x%x).\n", 2178 rsp_info_len, rsp_info[3]); 2179 2180 res = DID_BUS_BUSY << 16; 2181 goto out; 2182 } 2183 } 2184 2185 /* Check for overrun. */ 2186 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 2187 scsi_status & SS_RESIDUAL_OVER) 2188 comp_status = CS_DATA_OVERRUN; 2189 2190 /* 2191 * Check retry_delay_timer value if we receive a busy or 2192 * queue full. 2193 */ 2194 if (lscsi_status == SAM_STAT_TASK_SET_FULL || 2195 lscsi_status == SAM_STAT_BUSY) 2196 qla2x00_set_retry_delay_timestamp(fcport, retry_delay); 2197 2198 /* 2199 * Based on Host and scsi status generate status code for Linux 2200 */ 2201 switch (comp_status) { 2202 case CS_COMPLETE: 2203 case CS_QUEUE_FULL: 2204 if (scsi_status == 0) { 2205 res = DID_OK << 16; 2206 break; 2207 } 2208 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 2209 resid = resid_len; 2210 scsi_set_resid(cp, resid); 2211 2212 if (!lscsi_status && 2213 ((unsigned)(scsi_bufflen(cp) - resid) < 2214 cp->underflow)) { 2215 ql_dbg(ql_dbg_io, fcport->vha, 0x301a, 2216 "Mid-layer underflow " 2217 "detected (0x%x of 0x%x bytes).\n", 2218 resid, scsi_bufflen(cp)); 2219 2220 res = DID_ERROR << 16; 2221 break; 2222 } 2223 } 2224 res = DID_OK << 16 | lscsi_status; 2225 2226 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2227 ql_dbg(ql_dbg_io, fcport->vha, 0x301b, 2228 "QUEUE FULL detected.\n"); 2229 break; 2230 } 2231 logit = 0; 2232 if (lscsi_status != SS_CHECK_CONDITION) 2233 break; 2234 2235 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2236 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2237 break; 2238 2239 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 2240 rsp, res); 2241 break; 2242 2243 case CS_DATA_UNDERRUN: 2244 /* Use F/W calculated residual length. */ 2245 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 2246 scsi_set_resid(cp, resid); 2247 if (scsi_status & SS_RESIDUAL_UNDER) { 2248 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 2249 ql_dbg(ql_dbg_io, fcport->vha, 0x301d, 2250 "Dropped frame(s) detected " 2251 "(0x%x of 0x%x bytes).\n", 2252 resid, scsi_bufflen(cp)); 2253 2254 res = DID_ERROR << 16 | lscsi_status; 2255 goto check_scsi_status; 2256 } 2257 2258 if (!lscsi_status && 2259 ((unsigned)(scsi_bufflen(cp) - resid) < 2260 cp->underflow)) { 2261 ql_dbg(ql_dbg_io, fcport->vha, 0x301e, 2262 "Mid-layer underflow " 2263 "detected (0x%x of 0x%x bytes).\n", 2264 resid, scsi_bufflen(cp)); 2265 2266 res = DID_ERROR << 16; 2267 break; 2268 } 2269 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL && 2270 lscsi_status != SAM_STAT_BUSY) { 2271 /* 2272 * scsi status of task set and busy are considered to be 2273 * task not completed. 2274 */ 2275 2276 ql_dbg(ql_dbg_io, fcport->vha, 0x301f, 2277 "Dropped frame(s) detected (0x%x " 2278 "of 0x%x bytes).\n", resid, 2279 scsi_bufflen(cp)); 2280 2281 res = DID_ERROR << 16 | lscsi_status; 2282 goto check_scsi_status; 2283 } else { 2284 ql_dbg(ql_dbg_io, fcport->vha, 0x3030, 2285 "scsi_status: 0x%x, lscsi_status: 0x%x\n", 2286 scsi_status, lscsi_status); 2287 } 2288 2289 res = DID_OK << 16 | lscsi_status; 2290 logit = 0; 2291 2292 check_scsi_status: 2293 /* 2294 * Check to see if SCSI Status is non zero. If so report SCSI 2295 * Status. 2296 */ 2297 if (lscsi_status != 0) { 2298 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2299 ql_dbg(ql_dbg_io, fcport->vha, 0x3020, 2300 "QUEUE FULL detected.\n"); 2301 logit = 1; 2302 break; 2303 } 2304 if (lscsi_status != SS_CHECK_CONDITION) 2305 break; 2306 2307 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2308 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2309 break; 2310 2311 qla2x00_handle_sense(sp, sense_data, par_sense_len, 2312 sense_len, rsp, res); 2313 } 2314 break; 2315 2316 case CS_PORT_LOGGED_OUT: 2317 case CS_PORT_CONFIG_CHG: 2318 case CS_PORT_BUSY: 2319 case CS_INCOMPLETE: 2320 case CS_PORT_UNAVAILABLE: 2321 case CS_TIMEOUT: 2322 case CS_RESET: 2323 2324 /* 2325 * We are going to have the fc class block the rport 2326 * while we try to recover so instruct the mid layer 2327 * to requeue until the class decides how to handle this. 2328 */ 2329 res = DID_TRANSPORT_DISRUPTED << 16; 2330 2331 if (comp_status == CS_TIMEOUT) { 2332 if (IS_FWI2_CAPABLE(ha)) 2333 break; 2334 else if ((le16_to_cpu(sts->status_flags) & 2335 SF_LOGOUT_SENT) == 0) 2336 break; 2337 } 2338 2339 ql_dbg(ql_dbg_io, fcport->vha, 0x3021, 2340 "Port to be marked lost on fcport=%02x%02x%02x, current " 2341 "port state= %s.\n", fcport->d_id.b.domain, 2342 fcport->d_id.b.area, fcport->d_id.b.al_pa, 2343 port_state_str[atomic_read(&fcport->state)]); 2344 2345 if (atomic_read(&fcport->state) == FCS_ONLINE) 2346 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 2347 break; 2348 2349 case CS_ABORTED: 2350 res = DID_RESET << 16; 2351 break; 2352 2353 case CS_DIF_ERROR: 2354 logit = qla2x00_handle_dif_error(sp, sts24); 2355 res = cp->result; 2356 break; 2357 2358 case CS_TRANSPORT: 2359 res = DID_ERROR << 16; 2360 2361 if (!IS_PI_SPLIT_DET_CAPABLE(ha)) 2362 break; 2363 2364 if (state_flags & BIT_4) 2365 scmd_printk(KERN_WARNING, cp, 2366 "Unsupported device '%s' found.\n", 2367 cp->device->vendor); 2368 break; 2369 2370 default: 2371 res = DID_ERROR << 16; 2372 break; 2373 } 2374 2375 out: 2376 if (logit) 2377 ql_dbg(ql_dbg_io, fcport->vha, 0x3022, 2378 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu " 2379 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x " 2380 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n", 2381 comp_status, scsi_status, res, vha->host_no, 2382 cp->device->id, cp->device->lun, fcport->d_id.b.domain, 2383 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id, 2384 cp->cmnd, scsi_bufflen(cp), rsp_info_len, 2385 resid_len, fw_resid_len, sp, cp); 2386 2387 if (rsp->status_srb == NULL) 2388 sp->done(ha, sp, res); 2389 } 2390 2391 /** 2392 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 2393 * @ha: SCSI driver HA context 2394 * @pkt: Entry pointer 2395 * 2396 * Extended sense data. 2397 */ 2398 static void 2399 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 2400 { 2401 uint8_t sense_sz = 0; 2402 struct qla_hw_data *ha = rsp->hw; 2403 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 2404 srb_t *sp = rsp->status_srb; 2405 struct scsi_cmnd *cp; 2406 uint32_t sense_len; 2407 uint8_t *sense_ptr; 2408 2409 if (!sp || !GET_CMD_SENSE_LEN(sp)) 2410 return; 2411 2412 sense_len = GET_CMD_SENSE_LEN(sp); 2413 sense_ptr = GET_CMD_SENSE_PTR(sp); 2414 2415 cp = GET_CMD_SP(sp); 2416 if (cp == NULL) { 2417 ql_log(ql_log_warn, vha, 0x3025, 2418 "cmd is NULL: already returned to OS (sp=%p).\n", sp); 2419 2420 rsp->status_srb = NULL; 2421 return; 2422 } 2423 2424 if (sense_len > sizeof(pkt->data)) 2425 sense_sz = sizeof(pkt->data); 2426 else 2427 sense_sz = sense_len; 2428 2429 /* Move sense data. */ 2430 if (IS_FWI2_CAPABLE(ha)) 2431 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 2432 memcpy(sense_ptr, pkt->data, sense_sz); 2433 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c, 2434 sense_ptr, sense_sz); 2435 2436 sense_len -= sense_sz; 2437 sense_ptr += sense_sz; 2438 2439 SET_CMD_SENSE_PTR(sp, sense_ptr); 2440 SET_CMD_SENSE_LEN(sp, sense_len); 2441 2442 /* Place command on done queue. */ 2443 if (sense_len == 0) { 2444 rsp->status_srb = NULL; 2445 sp->done(ha, sp, cp->result); 2446 } 2447 } 2448 2449 /** 2450 * qla2x00_error_entry() - Process an error entry. 2451 * @ha: SCSI driver HA context 2452 * @pkt: Entry pointer 2453 */ 2454 static void 2455 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 2456 { 2457 srb_t *sp; 2458 struct qla_hw_data *ha = vha->hw; 2459 const char func[] = "ERROR-IOCB"; 2460 uint16_t que = MSW(pkt->handle); 2461 struct req_que *req = NULL; 2462 int res = DID_ERROR << 16; 2463 2464 ql_dbg(ql_dbg_async, vha, 0x502a, 2465 "type of error status in response: 0x%x\n", pkt->entry_status); 2466 2467 if (que >= ha->max_req_queues || !ha->req_q_map[que]) 2468 goto fatal; 2469 2470 req = ha->req_q_map[que]; 2471 2472 if (pkt->entry_status & RF_BUSY) 2473 res = DID_BUS_BUSY << 16; 2474 2475 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2476 if (sp) { 2477 sp->done(ha, sp, res); 2478 return; 2479 } 2480 fatal: 2481 ql_log(ql_log_warn, vha, 0x5030, 2482 "Error entry - invalid handle/queue (%04x).\n", que); 2483 } 2484 2485 /** 2486 * qla24xx_mbx_completion() - Process mailbox command completions. 2487 * @ha: SCSI driver HA context 2488 * @mb0: Mailbox0 register 2489 */ 2490 static void 2491 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 2492 { 2493 uint16_t cnt; 2494 uint32_t mboxes; 2495 uint16_t __iomem *wptr; 2496 struct qla_hw_data *ha = vha->hw; 2497 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2498 2499 /* Read all mbox registers? */ 2500 mboxes = (1 << ha->mbx_count) - 1; 2501 if (!ha->mcp) 2502 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n"); 2503 else 2504 mboxes = ha->mcp->in_mb; 2505 2506 /* Load return mailbox registers. */ 2507 ha->flags.mbox_int = 1; 2508 ha->mailbox_out[0] = mb0; 2509 mboxes >>= 1; 2510 wptr = (uint16_t __iomem *)®->mailbox1; 2511 2512 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 2513 if (mboxes & BIT_0) 2514 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 2515 2516 mboxes >>= 1; 2517 wptr++; 2518 } 2519 } 2520 2521 static void 2522 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 2523 struct abort_entry_24xx *pkt) 2524 { 2525 const char func[] = "ABT_IOCB"; 2526 srb_t *sp; 2527 struct srb_iocb *abt; 2528 2529 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2530 if (!sp) 2531 return; 2532 2533 abt = &sp->u.iocb_cmd; 2534 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle); 2535 sp->done(vha, sp, 0); 2536 } 2537 2538 /** 2539 * qla24xx_process_response_queue() - Process response queue entries. 2540 * @ha: SCSI driver HA context 2541 */ 2542 void qla24xx_process_response_queue(struct scsi_qla_host *vha, 2543 struct rsp_que *rsp) 2544 { 2545 struct sts_entry_24xx *pkt; 2546 struct qla_hw_data *ha = vha->hw; 2547 2548 if (!vha->flags.online) 2549 return; 2550 2551 if (rsp->msix->cpuid != smp_processor_id()) { 2552 /* if kernel does not notify qla of IRQ's CPU change, 2553 * then set it here. 2554 */ 2555 rsp->msix->cpuid = smp_processor_id(); 2556 ha->tgt.rspq_vector_cpuid = rsp->msix->cpuid; 2557 } 2558 2559 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 2560 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 2561 2562 rsp->ring_index++; 2563 if (rsp->ring_index == rsp->length) { 2564 rsp->ring_index = 0; 2565 rsp->ring_ptr = rsp->ring; 2566 } else { 2567 rsp->ring_ptr++; 2568 } 2569 2570 if (pkt->entry_status != 0) { 2571 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 2572 2573 if (qlt_24xx_process_response_error(vha, pkt)) 2574 goto process_err; 2575 2576 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2577 wmb(); 2578 continue; 2579 } 2580 process_err: 2581 2582 switch (pkt->entry_type) { 2583 case STATUS_TYPE: 2584 qla2x00_status_entry(vha, rsp, pkt); 2585 break; 2586 case STATUS_CONT_TYPE: 2587 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 2588 break; 2589 case VP_RPT_ID_IOCB_TYPE: 2590 qla24xx_report_id_acquisition(vha, 2591 (struct vp_rpt_id_entry_24xx *)pkt); 2592 break; 2593 case LOGINOUT_PORT_IOCB_TYPE: 2594 qla24xx_logio_entry(vha, rsp->req, 2595 (struct logio_entry_24xx *)pkt); 2596 break; 2597 case CT_IOCB_TYPE: 2598 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2599 break; 2600 case ELS_IOCB_TYPE: 2601 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2602 break; 2603 case ABTS_RECV_24XX: 2604 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 2605 /* ensure that the ATIO queue is empty */ 2606 qlt_handle_abts_recv(vha, (response_t *)pkt); 2607 break; 2608 } else { 2609 /* drop through */ 2610 qlt_24xx_process_atio_queue(vha, 1); 2611 } 2612 case ABTS_RESP_24XX: 2613 case CTIO_TYPE7: 2614 case NOTIFY_ACK_TYPE: 2615 case CTIO_CRC2: 2616 qlt_response_pkt_all_vps(vha, (response_t *)pkt); 2617 break; 2618 case MARKER_TYPE: 2619 /* Do nothing in this case, this check is to prevent it 2620 * from falling into default case 2621 */ 2622 break; 2623 case ABORT_IOCB_TYPE: 2624 qla24xx_abort_iocb_entry(vha, rsp->req, 2625 (struct abort_entry_24xx *)pkt); 2626 break; 2627 default: 2628 /* Type Not Supported. */ 2629 ql_dbg(ql_dbg_async, vha, 0x5042, 2630 "Received unknown response pkt type %x " 2631 "entry status=%x.\n", 2632 pkt->entry_type, pkt->entry_status); 2633 break; 2634 } 2635 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2636 wmb(); 2637 } 2638 2639 /* Adjust ring index */ 2640 if (IS_P3P_TYPE(ha)) { 2641 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2642 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2643 } else 2644 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2645 } 2646 2647 static void 2648 qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2649 { 2650 int rval; 2651 uint32_t cnt; 2652 struct qla_hw_data *ha = vha->hw; 2653 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2654 2655 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) && 2656 !IS_QLA27XX(ha)) 2657 return; 2658 2659 rval = QLA_SUCCESS; 2660 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2661 RD_REG_DWORD(®->iobase_addr); 2662 WRT_REG_DWORD(®->iobase_window, 0x0001); 2663 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2664 rval == QLA_SUCCESS; cnt--) { 2665 if (cnt) { 2666 WRT_REG_DWORD(®->iobase_window, 0x0001); 2667 udelay(10); 2668 } else 2669 rval = QLA_FUNCTION_TIMEOUT; 2670 } 2671 if (rval == QLA_SUCCESS) 2672 goto next_test; 2673 2674 rval = QLA_SUCCESS; 2675 WRT_REG_DWORD(®->iobase_window, 0x0003); 2676 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2677 rval == QLA_SUCCESS; cnt--) { 2678 if (cnt) { 2679 WRT_REG_DWORD(®->iobase_window, 0x0003); 2680 udelay(10); 2681 } else 2682 rval = QLA_FUNCTION_TIMEOUT; 2683 } 2684 if (rval != QLA_SUCCESS) 2685 goto done; 2686 2687 next_test: 2688 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2689 ql_log(ql_log_info, vha, 0x504c, 2690 "Additional code -- 0x55AA.\n"); 2691 2692 done: 2693 WRT_REG_DWORD(®->iobase_window, 0x0000); 2694 RD_REG_DWORD(®->iobase_window); 2695 } 2696 2697 /** 2698 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx. 2699 * @irq: 2700 * @dev_id: SCSI driver HA context 2701 * 2702 * Called by system whenever the host adapter generates an interrupt. 2703 * 2704 * Returns handled flag. 2705 */ 2706 irqreturn_t 2707 qla24xx_intr_handler(int irq, void *dev_id) 2708 { 2709 scsi_qla_host_t *vha; 2710 struct qla_hw_data *ha; 2711 struct device_reg_24xx __iomem *reg; 2712 int status; 2713 unsigned long iter; 2714 uint32_t stat; 2715 uint32_t hccr; 2716 uint16_t mb[8]; 2717 struct rsp_que *rsp; 2718 unsigned long flags; 2719 2720 rsp = (struct rsp_que *) dev_id; 2721 if (!rsp) { 2722 ql_log(ql_log_info, NULL, 0x5059, 2723 "%s: NULL response queue pointer.\n", __func__); 2724 return IRQ_NONE; 2725 } 2726 2727 ha = rsp->hw; 2728 reg = &ha->iobase->isp24; 2729 status = 0; 2730 2731 if (unlikely(pci_channel_offline(ha->pdev))) 2732 return IRQ_HANDLED; 2733 2734 spin_lock_irqsave(&ha->hardware_lock, flags); 2735 vha = pci_get_drvdata(ha->pdev); 2736 for (iter = 50; iter--; ) { 2737 stat = RD_REG_DWORD(®->host_status); 2738 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2739 break; 2740 if (stat & HSRX_RISC_PAUSED) { 2741 if (unlikely(pci_channel_offline(ha->pdev))) 2742 break; 2743 2744 hccr = RD_REG_DWORD(®->hccr); 2745 2746 ql_log(ql_log_warn, vha, 0x504b, 2747 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2748 hccr); 2749 2750 qla2xxx_check_risc_status(vha); 2751 2752 ha->isp_ops->fw_dump(vha, 1); 2753 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2754 break; 2755 } else if ((stat & HSRX_RISC_INT) == 0) 2756 break; 2757 2758 switch (stat & 0xff) { 2759 case INTR_ROM_MB_SUCCESS: 2760 case INTR_ROM_MB_FAILED: 2761 case INTR_MB_SUCCESS: 2762 case INTR_MB_FAILED: 2763 qla24xx_mbx_completion(vha, MSW(stat)); 2764 status |= MBX_INTERRUPT; 2765 2766 break; 2767 case INTR_ASYNC_EVENT: 2768 mb[0] = MSW(stat); 2769 mb[1] = RD_REG_WORD(®->mailbox1); 2770 mb[2] = RD_REG_WORD(®->mailbox2); 2771 mb[3] = RD_REG_WORD(®->mailbox3); 2772 qla2x00_async_event(vha, rsp, mb); 2773 break; 2774 case INTR_RSP_QUE_UPDATE: 2775 case INTR_RSP_QUE_UPDATE_83XX: 2776 qla24xx_process_response_queue(vha, rsp); 2777 break; 2778 case INTR_ATIO_QUE_UPDATE:{ 2779 unsigned long flags2; 2780 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2781 qlt_24xx_process_atio_queue(vha, 1); 2782 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2783 break; 2784 } 2785 case INTR_ATIO_RSP_QUE_UPDATE: { 2786 unsigned long flags2; 2787 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2788 qlt_24xx_process_atio_queue(vha, 1); 2789 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2790 2791 qla24xx_process_response_queue(vha, rsp); 2792 break; 2793 } 2794 default: 2795 ql_dbg(ql_dbg_async, vha, 0x504f, 2796 "Unrecognized interrupt type (%d).\n", stat * 0xff); 2797 break; 2798 } 2799 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2800 RD_REG_DWORD_RELAXED(®->hccr); 2801 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1))) 2802 ndelay(3500); 2803 } 2804 qla2x00_handle_mbx_completion(ha, status); 2805 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2806 2807 return IRQ_HANDLED; 2808 } 2809 2810 static irqreturn_t 2811 qla24xx_msix_rsp_q(int irq, void *dev_id) 2812 { 2813 struct qla_hw_data *ha; 2814 struct rsp_que *rsp; 2815 struct device_reg_24xx __iomem *reg; 2816 struct scsi_qla_host *vha; 2817 unsigned long flags; 2818 uint32_t stat = 0; 2819 2820 rsp = (struct rsp_que *) dev_id; 2821 if (!rsp) { 2822 ql_log(ql_log_info, NULL, 0x505a, 2823 "%s: NULL response queue pointer.\n", __func__); 2824 return IRQ_NONE; 2825 } 2826 ha = rsp->hw; 2827 reg = &ha->iobase->isp24; 2828 2829 spin_lock_irqsave(&ha->hardware_lock, flags); 2830 2831 vha = pci_get_drvdata(ha->pdev); 2832 /* 2833 * Use host_status register to check to PCI disconnection before we 2834 * we process the response queue. 2835 */ 2836 stat = RD_REG_DWORD(®->host_status); 2837 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2838 goto out; 2839 qla24xx_process_response_queue(vha, rsp); 2840 if (!ha->flags.disable_msix_handshake) { 2841 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2842 RD_REG_DWORD_RELAXED(®->hccr); 2843 } 2844 out: 2845 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2846 2847 return IRQ_HANDLED; 2848 } 2849 2850 static irqreturn_t 2851 qla25xx_msix_rsp_q(int irq, void *dev_id) 2852 { 2853 struct qla_hw_data *ha; 2854 scsi_qla_host_t *vha; 2855 struct rsp_que *rsp; 2856 struct device_reg_24xx __iomem *reg; 2857 unsigned long flags; 2858 uint32_t hccr = 0; 2859 2860 rsp = (struct rsp_que *) dev_id; 2861 if (!rsp) { 2862 ql_log(ql_log_info, NULL, 0x505b, 2863 "%s: NULL response queue pointer.\n", __func__); 2864 return IRQ_NONE; 2865 } 2866 ha = rsp->hw; 2867 vha = pci_get_drvdata(ha->pdev); 2868 2869 /* Clear the interrupt, if enabled, for this response queue */ 2870 if (!ha->flags.disable_msix_handshake) { 2871 reg = &ha->iobase->isp24; 2872 spin_lock_irqsave(&ha->hardware_lock, flags); 2873 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2874 hccr = RD_REG_DWORD_RELAXED(®->hccr); 2875 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2876 } 2877 if (qla2x00_check_reg32_for_disconnect(vha, hccr)) 2878 goto out; 2879 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work); 2880 2881 out: 2882 return IRQ_HANDLED; 2883 } 2884 2885 static irqreturn_t 2886 qla24xx_msix_default(int irq, void *dev_id) 2887 { 2888 scsi_qla_host_t *vha; 2889 struct qla_hw_data *ha; 2890 struct rsp_que *rsp; 2891 struct device_reg_24xx __iomem *reg; 2892 int status; 2893 uint32_t stat; 2894 uint32_t hccr; 2895 uint16_t mb[8]; 2896 unsigned long flags; 2897 2898 rsp = (struct rsp_que *) dev_id; 2899 if (!rsp) { 2900 ql_log(ql_log_info, NULL, 0x505c, 2901 "%s: NULL response queue pointer.\n", __func__); 2902 return IRQ_NONE; 2903 } 2904 ha = rsp->hw; 2905 reg = &ha->iobase->isp24; 2906 status = 0; 2907 2908 spin_lock_irqsave(&ha->hardware_lock, flags); 2909 vha = pci_get_drvdata(ha->pdev); 2910 do { 2911 stat = RD_REG_DWORD(®->host_status); 2912 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2913 break; 2914 if (stat & HSRX_RISC_PAUSED) { 2915 if (unlikely(pci_channel_offline(ha->pdev))) 2916 break; 2917 2918 hccr = RD_REG_DWORD(®->hccr); 2919 2920 ql_log(ql_log_info, vha, 0x5050, 2921 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2922 hccr); 2923 2924 qla2xxx_check_risc_status(vha); 2925 2926 ha->isp_ops->fw_dump(vha, 1); 2927 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2928 break; 2929 } else if ((stat & HSRX_RISC_INT) == 0) 2930 break; 2931 2932 switch (stat & 0xff) { 2933 case INTR_ROM_MB_SUCCESS: 2934 case INTR_ROM_MB_FAILED: 2935 case INTR_MB_SUCCESS: 2936 case INTR_MB_FAILED: 2937 qla24xx_mbx_completion(vha, MSW(stat)); 2938 status |= MBX_INTERRUPT; 2939 2940 break; 2941 case INTR_ASYNC_EVENT: 2942 mb[0] = MSW(stat); 2943 mb[1] = RD_REG_WORD(®->mailbox1); 2944 mb[2] = RD_REG_WORD(®->mailbox2); 2945 mb[3] = RD_REG_WORD(®->mailbox3); 2946 qla2x00_async_event(vha, rsp, mb); 2947 break; 2948 case INTR_RSP_QUE_UPDATE: 2949 case INTR_RSP_QUE_UPDATE_83XX: 2950 qla24xx_process_response_queue(vha, rsp); 2951 break; 2952 case INTR_ATIO_QUE_UPDATE:{ 2953 unsigned long flags2; 2954 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2955 qlt_24xx_process_atio_queue(vha, 1); 2956 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2957 break; 2958 } 2959 case INTR_ATIO_RSP_QUE_UPDATE: { 2960 unsigned long flags2; 2961 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2962 qlt_24xx_process_atio_queue(vha, 1); 2963 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2964 2965 qla24xx_process_response_queue(vha, rsp); 2966 break; 2967 } 2968 default: 2969 ql_dbg(ql_dbg_async, vha, 0x5051, 2970 "Unrecognized interrupt type (%d).\n", stat & 0xff); 2971 break; 2972 } 2973 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2974 } while (0); 2975 qla2x00_handle_mbx_completion(ha, status); 2976 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2977 2978 return IRQ_HANDLED; 2979 } 2980 2981 /* Interrupt handling helpers. */ 2982 2983 struct qla_init_msix_entry { 2984 const char *name; 2985 irq_handler_t handler; 2986 }; 2987 2988 static struct qla_init_msix_entry msix_entries[3] = { 2989 { "qla2xxx (default)", qla24xx_msix_default }, 2990 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 2991 { "qla2xxx (multiq)", qla25xx_msix_rsp_q }, 2992 }; 2993 2994 static struct qla_init_msix_entry qla82xx_msix_entries[2] = { 2995 { "qla2xxx (default)", qla82xx_msix_default }, 2996 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 2997 }; 2998 2999 static struct qla_init_msix_entry qla83xx_msix_entries[3] = { 3000 { "qla2xxx (default)", qla24xx_msix_default }, 3001 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 3002 { "qla2xxx (atio_q)", qla83xx_msix_atio_q }, 3003 }; 3004 3005 static void 3006 qla24xx_disable_msix(struct qla_hw_data *ha) 3007 { 3008 int i; 3009 struct qla_msix_entry *qentry; 3010 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3011 3012 for (i = 0; i < ha->msix_count; i++) { 3013 qentry = &ha->msix_entries[i]; 3014 if (qentry->have_irq) { 3015 /* un-register irq cpu affinity notification */ 3016 irq_set_affinity_notifier(qentry->vector, NULL); 3017 free_irq(qentry->vector, qentry->rsp); 3018 } 3019 } 3020 pci_disable_msix(ha->pdev); 3021 kfree(ha->msix_entries); 3022 ha->msix_entries = NULL; 3023 ha->flags.msix_enabled = 0; 3024 ql_dbg(ql_dbg_init, vha, 0x0042, 3025 "Disabled the MSI.\n"); 3026 } 3027 3028 static int 3029 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 3030 { 3031 #define MIN_MSIX_COUNT 2 3032 #define ATIO_VECTOR 2 3033 int i, ret; 3034 struct msix_entry *entries; 3035 struct qla_msix_entry *qentry; 3036 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3037 3038 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, 3039 GFP_KERNEL); 3040 if (!entries) { 3041 ql_log(ql_log_warn, vha, 0x00bc, 3042 "Failed to allocate memory for msix_entry.\n"); 3043 return -ENOMEM; 3044 } 3045 3046 for (i = 0; i < ha->msix_count; i++) 3047 entries[i].entry = i; 3048 3049 ret = pci_enable_msix_range(ha->pdev, 3050 entries, MIN_MSIX_COUNT, ha->msix_count); 3051 if (ret < 0) { 3052 ql_log(ql_log_fatal, vha, 0x00c7, 3053 "MSI-X: Failed to enable support, " 3054 "giving up -- %d/%d.\n", 3055 ha->msix_count, ret); 3056 goto msix_out; 3057 } else if (ret < ha->msix_count) { 3058 ql_log(ql_log_warn, vha, 0x00c6, 3059 "MSI-X: Failed to enable support " 3060 "-- %d/%d\n Retry with %d vectors.\n", 3061 ha->msix_count, ret, ret); 3062 ha->msix_count = ret; 3063 ha->max_rsp_queues = ha->msix_count - 1; 3064 } 3065 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 3066 ha->msix_count, GFP_KERNEL); 3067 if (!ha->msix_entries) { 3068 ql_log(ql_log_fatal, vha, 0x00c8, 3069 "Failed to allocate memory for ha->msix_entries.\n"); 3070 ret = -ENOMEM; 3071 goto msix_out; 3072 } 3073 ha->flags.msix_enabled = 1; 3074 3075 for (i = 0; i < ha->msix_count; i++) { 3076 qentry = &ha->msix_entries[i]; 3077 qentry->vector = entries[i].vector; 3078 qentry->entry = entries[i].entry; 3079 qentry->have_irq = 0; 3080 qentry->rsp = NULL; 3081 qentry->irq_notify.notify = qla_irq_affinity_notify; 3082 qentry->irq_notify.release = qla_irq_affinity_release; 3083 qentry->cpuid = -1; 3084 } 3085 3086 /* Enable MSI-X vectors for the base queue */ 3087 for (i = 0; i < 2; i++) { 3088 qentry = &ha->msix_entries[i]; 3089 if (IS_P3P_TYPE(ha)) 3090 ret = request_irq(qentry->vector, 3091 qla82xx_msix_entries[i].handler, 3092 0, qla82xx_msix_entries[i].name, rsp); 3093 else 3094 ret = request_irq(qentry->vector, 3095 msix_entries[i].handler, 3096 0, msix_entries[i].name, rsp); 3097 if (ret) 3098 goto msix_register_fail; 3099 qentry->have_irq = 1; 3100 qentry->rsp = rsp; 3101 rsp->msix = qentry; 3102 3103 /* Register for CPU affinity notification. */ 3104 irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify); 3105 3106 /* Schedule work (ie. trigger a notification) to read cpu 3107 * mask for this specific irq. 3108 * kref_get is required because 3109 * irq_affinity_notify() will do 3110 * kref_put(). 3111 */ 3112 kref_get(&qentry->irq_notify.kref); 3113 schedule_work(&qentry->irq_notify.work); 3114 } 3115 3116 /* 3117 * If target mode is enable, also request the vector for the ATIO 3118 * queue. 3119 */ 3120 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) { 3121 qentry = &ha->msix_entries[ATIO_VECTOR]; 3122 ret = request_irq(qentry->vector, 3123 qla83xx_msix_entries[ATIO_VECTOR].handler, 3124 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp); 3125 qentry->have_irq = 1; 3126 qentry->rsp = rsp; 3127 rsp->msix = qentry; 3128 } 3129 3130 msix_register_fail: 3131 if (ret) { 3132 ql_log(ql_log_fatal, vha, 0x00cb, 3133 "MSI-X: unable to register handler -- %x/%d.\n", 3134 qentry->vector, ret); 3135 qla24xx_disable_msix(ha); 3136 ha->mqenable = 0; 3137 goto msix_out; 3138 } 3139 3140 /* Enable MSI-X vector for response queue update for queue 0 */ 3141 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 3142 if (ha->msixbase && ha->mqiobase && 3143 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 3144 ha->mqenable = 1; 3145 } else 3146 if (ha->mqiobase 3147 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 3148 ha->mqenable = 1; 3149 ql_dbg(ql_dbg_multiq, vha, 0xc005, 3150 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3151 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3152 ql_dbg(ql_dbg_init, vha, 0x0055, 3153 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3154 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3155 3156 msix_out: 3157 kfree(entries); 3158 return ret; 3159 } 3160 3161 int 3162 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 3163 { 3164 int ret = QLA_FUNCTION_FAILED; 3165 device_reg_t *reg = ha->iobase; 3166 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3167 3168 /* If possible, enable MSI-X. */ 3169 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3170 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) && 3171 !IS_QLA27XX(ha)) 3172 goto skip_msi; 3173 3174 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 3175 (ha->pdev->subsystem_device == 0x7040 || 3176 ha->pdev->subsystem_device == 0x7041 || 3177 ha->pdev->subsystem_device == 0x1705)) { 3178 ql_log(ql_log_warn, vha, 0x0034, 3179 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n", 3180 ha->pdev->subsystem_vendor, 3181 ha->pdev->subsystem_device); 3182 goto skip_msi; 3183 } 3184 3185 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) { 3186 ql_log(ql_log_warn, vha, 0x0035, 3187 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n", 3188 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX); 3189 goto skip_msix; 3190 } 3191 3192 ret = qla24xx_enable_msix(ha, rsp); 3193 if (!ret) { 3194 ql_dbg(ql_dbg_init, vha, 0x0036, 3195 "MSI-X: Enabled (0x%X, 0x%X).\n", 3196 ha->chip_revision, ha->fw_attributes); 3197 goto clear_risc_ints; 3198 } 3199 3200 skip_msix: 3201 3202 ql_log(ql_log_info, vha, 0x0037, 3203 "Falling back-to MSI mode -%d.\n", ret); 3204 3205 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3206 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) && 3207 !IS_QLA27XX(ha)) 3208 goto skip_msi; 3209 3210 ret = pci_enable_msi(ha->pdev); 3211 if (!ret) { 3212 ql_dbg(ql_dbg_init, vha, 0x0038, 3213 "MSI: Enabled.\n"); 3214 ha->flags.msi_enabled = 1; 3215 } else 3216 ql_log(ql_log_warn, vha, 0x0039, 3217 "Falling back-to INTa mode -- %d.\n", ret); 3218 skip_msi: 3219 3220 /* Skip INTx on ISP82xx. */ 3221 if (!ha->flags.msi_enabled && IS_QLA82XX(ha)) 3222 return QLA_FUNCTION_FAILED; 3223 3224 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 3225 ha->flags.msi_enabled ? 0 : IRQF_SHARED, 3226 QLA2XXX_DRIVER_NAME, rsp); 3227 if (ret) { 3228 ql_log(ql_log_warn, vha, 0x003a, 3229 "Failed to reserve interrupt %d already in use.\n", 3230 ha->pdev->irq); 3231 goto fail; 3232 } else if (!ha->flags.msi_enabled) { 3233 ql_dbg(ql_dbg_init, vha, 0x0125, 3234 "INTa mode: Enabled.\n"); 3235 ha->flags.mr_intr_valid = 1; 3236 } 3237 3238 clear_risc_ints: 3239 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha)) 3240 goto fail; 3241 3242 spin_lock_irq(&ha->hardware_lock); 3243 WRT_REG_WORD(®->isp.semaphore, 0); 3244 spin_unlock_irq(&ha->hardware_lock); 3245 3246 fail: 3247 return ret; 3248 } 3249 3250 void 3251 qla2x00_free_irqs(scsi_qla_host_t *vha) 3252 { 3253 struct qla_hw_data *ha = vha->hw; 3254 struct rsp_que *rsp; 3255 3256 /* 3257 * We need to check that ha->rsp_q_map is valid in case we are called 3258 * from a probe failure context. 3259 */ 3260 if (!ha->rsp_q_map || !ha->rsp_q_map[0]) 3261 return; 3262 rsp = ha->rsp_q_map[0]; 3263 3264 if (ha->flags.msix_enabled) 3265 qla24xx_disable_msix(ha); 3266 else if (ha->flags.msi_enabled) { 3267 free_irq(ha->pdev->irq, rsp); 3268 pci_disable_msi(ha->pdev); 3269 } else 3270 free_irq(ha->pdev->irq, rsp); 3271 } 3272 3273 3274 int qla25xx_request_irq(struct rsp_que *rsp) 3275 { 3276 struct qla_hw_data *ha = rsp->hw; 3277 struct qla_init_msix_entry *intr = &msix_entries[2]; 3278 struct qla_msix_entry *msix = rsp->msix; 3279 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3280 int ret; 3281 3282 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); 3283 if (ret) { 3284 ql_log(ql_log_fatal, vha, 0x00e6, 3285 "MSI-X: Unable to register handler -- %x/%d.\n", 3286 msix->vector, ret); 3287 return ret; 3288 } 3289 msix->have_irq = 1; 3290 msix->rsp = rsp; 3291 return ret; 3292 } 3293 3294 3295 /* irq_set_affinity/irqbalance will trigger notification of cpu mask update */ 3296 static void qla_irq_affinity_notify(struct irq_affinity_notify *notify, 3297 const cpumask_t *mask) 3298 { 3299 struct qla_msix_entry *e = 3300 container_of(notify, struct qla_msix_entry, irq_notify); 3301 struct qla_hw_data *ha; 3302 struct scsi_qla_host *base_vha; 3303 3304 /* user is recommended to set mask to just 1 cpu */ 3305 e->cpuid = cpumask_first(mask); 3306 3307 ha = e->rsp->hw; 3308 base_vha = pci_get_drvdata(ha->pdev); 3309 3310 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3311 "%s: host %ld : vector %d cpu %d \n", __func__, 3312 base_vha->host_no, e->vector, e->cpuid); 3313 3314 if (e->have_irq) { 3315 if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) && 3316 (e->entry == QLA83XX_RSPQ_MSIX_ENTRY_NUMBER)) { 3317 ha->tgt.rspq_vector_cpuid = e->cpuid; 3318 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3319 "%s: host%ld: rspq vector %d cpu %d runtime change\n", 3320 __func__, base_vha->host_no, e->vector, e->cpuid); 3321 } 3322 } 3323 } 3324 3325 static void qla_irq_affinity_release(struct kref *ref) 3326 { 3327 struct irq_affinity_notify *notify = 3328 container_of(ref, struct irq_affinity_notify, kref); 3329 struct qla_msix_entry *e = 3330 container_of(notify, struct qla_msix_entry, irq_notify); 3331 struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev); 3332 3333 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3334 "%s: host%ld: vector %d cpu %d \n", __func__, 3335 base_vha->host_no, e->vector, e->cpuid); 3336 } 3337