1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 #include "qla_target.h" 9 10 #include <linux/delay.h> 11 #include <linux/slab.h> 12 #include <scsi/scsi_tcq.h> 13 #include <scsi/scsi_bsg_fc.h> 14 #include <scsi/scsi_eh.h> 15 16 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 17 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); 18 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *); 19 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *, 20 sts_entry_t *); 21 static void qla_irq_affinity_notify(struct irq_affinity_notify *, 22 const cpumask_t *); 23 static void qla_irq_affinity_release(struct kref *); 24 25 26 /** 27 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 28 * @irq: 29 * @dev_id: SCSI driver HA context 30 * 31 * Called by system whenever the host adapter generates an interrupt. 32 * 33 * Returns handled flag. 34 */ 35 irqreturn_t 36 qla2100_intr_handler(int irq, void *dev_id) 37 { 38 scsi_qla_host_t *vha; 39 struct qla_hw_data *ha; 40 struct device_reg_2xxx __iomem *reg; 41 int status; 42 unsigned long iter; 43 uint16_t hccr; 44 uint16_t mb[4]; 45 struct rsp_que *rsp; 46 unsigned long flags; 47 48 rsp = (struct rsp_que *) dev_id; 49 if (!rsp) { 50 ql_log(ql_log_info, NULL, 0x505d, 51 "%s: NULL response queue pointer.\n", __func__); 52 return (IRQ_NONE); 53 } 54 55 ha = rsp->hw; 56 reg = &ha->iobase->isp; 57 status = 0; 58 59 spin_lock_irqsave(&ha->hardware_lock, flags); 60 vha = pci_get_drvdata(ha->pdev); 61 for (iter = 50; iter--; ) { 62 hccr = RD_REG_WORD(®->hccr); 63 if (qla2x00_check_reg16_for_disconnect(vha, hccr)) 64 break; 65 if (hccr & HCCR_RISC_PAUSE) { 66 if (pci_channel_offline(ha->pdev)) 67 break; 68 69 /* 70 * Issue a "HARD" reset in order for the RISC interrupt 71 * bit to be cleared. Schedule a big hammer to get 72 * out of the RISC PAUSED state. 73 */ 74 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 75 RD_REG_WORD(®->hccr); 76 77 ha->isp_ops->fw_dump(vha, 1); 78 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 79 break; 80 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 81 break; 82 83 if (RD_REG_WORD(®->semaphore) & BIT_0) { 84 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 85 RD_REG_WORD(®->hccr); 86 87 /* Get mailbox data. */ 88 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 89 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 90 qla2x00_mbx_completion(vha, mb[0]); 91 status |= MBX_INTERRUPT; 92 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 93 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 94 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 95 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 96 qla2x00_async_event(vha, rsp, mb); 97 } else { 98 /*EMPTY*/ 99 ql_dbg(ql_dbg_async, vha, 0x5025, 100 "Unrecognized interrupt type (%d).\n", 101 mb[0]); 102 } 103 /* Release mailbox registers. */ 104 WRT_REG_WORD(®->semaphore, 0); 105 RD_REG_WORD(®->semaphore); 106 } else { 107 qla2x00_process_response_queue(rsp); 108 109 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 110 RD_REG_WORD(®->hccr); 111 } 112 } 113 qla2x00_handle_mbx_completion(ha, status); 114 spin_unlock_irqrestore(&ha->hardware_lock, flags); 115 116 return (IRQ_HANDLED); 117 } 118 119 bool 120 qla2x00_check_reg32_for_disconnect(scsi_qla_host_t *vha, uint32_t reg) 121 { 122 /* Check for PCI disconnection */ 123 if (reg == 0xffffffff && !pci_channel_offline(vha->hw->pdev)) { 124 if (!test_and_set_bit(PFLG_DISCONNECTED, &vha->pci_flags) && 125 !test_bit(PFLG_DRIVER_REMOVING, &vha->pci_flags) && 126 !test_bit(PFLG_DRIVER_PROBING, &vha->pci_flags)) { 127 /* 128 * Schedule this (only once) on the default system 129 * workqueue so that all the adapter workqueues and the 130 * DPC thread can be shutdown cleanly. 131 */ 132 schedule_work(&vha->hw->board_disable); 133 } 134 return true; 135 } else 136 return false; 137 } 138 139 bool 140 qla2x00_check_reg16_for_disconnect(scsi_qla_host_t *vha, uint16_t reg) 141 { 142 return qla2x00_check_reg32_for_disconnect(vha, 0xffff0000 | reg); 143 } 144 145 /** 146 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 147 * @irq: 148 * @dev_id: SCSI driver HA context 149 * 150 * Called by system whenever the host adapter generates an interrupt. 151 * 152 * Returns handled flag. 153 */ 154 irqreturn_t 155 qla2300_intr_handler(int irq, void *dev_id) 156 { 157 scsi_qla_host_t *vha; 158 struct device_reg_2xxx __iomem *reg; 159 int status; 160 unsigned long iter; 161 uint32_t stat; 162 uint16_t hccr; 163 uint16_t mb[4]; 164 struct rsp_que *rsp; 165 struct qla_hw_data *ha; 166 unsigned long flags; 167 168 rsp = (struct rsp_que *) dev_id; 169 if (!rsp) { 170 ql_log(ql_log_info, NULL, 0x5058, 171 "%s: NULL response queue pointer.\n", __func__); 172 return (IRQ_NONE); 173 } 174 175 ha = rsp->hw; 176 reg = &ha->iobase->isp; 177 status = 0; 178 179 spin_lock_irqsave(&ha->hardware_lock, flags); 180 vha = pci_get_drvdata(ha->pdev); 181 for (iter = 50; iter--; ) { 182 stat = RD_REG_DWORD(®->u.isp2300.host_status); 183 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 184 break; 185 if (stat & HSR_RISC_PAUSED) { 186 if (unlikely(pci_channel_offline(ha->pdev))) 187 break; 188 189 hccr = RD_REG_WORD(®->hccr); 190 191 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 192 ql_log(ql_log_warn, vha, 0x5026, 193 "Parity error -- HCCR=%x, Dumping " 194 "firmware.\n", hccr); 195 else 196 ql_log(ql_log_warn, vha, 0x5027, 197 "RISC paused -- HCCR=%x, Dumping " 198 "firmware.\n", hccr); 199 200 /* 201 * Issue a "HARD" reset in order for the RISC 202 * interrupt bit to be cleared. Schedule a big 203 * hammer to get out of the RISC PAUSED state. 204 */ 205 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 206 RD_REG_WORD(®->hccr); 207 208 ha->isp_ops->fw_dump(vha, 1); 209 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 210 break; 211 } else if ((stat & HSR_RISC_INT) == 0) 212 break; 213 214 switch (stat & 0xff) { 215 case 0x1: 216 case 0x2: 217 case 0x10: 218 case 0x11: 219 qla2x00_mbx_completion(vha, MSW(stat)); 220 status |= MBX_INTERRUPT; 221 222 /* Release mailbox registers. */ 223 WRT_REG_WORD(®->semaphore, 0); 224 break; 225 case 0x12: 226 mb[0] = MSW(stat); 227 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 228 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 229 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 230 qla2x00_async_event(vha, rsp, mb); 231 break; 232 case 0x13: 233 qla2x00_process_response_queue(rsp); 234 break; 235 case 0x15: 236 mb[0] = MBA_CMPLT_1_16BIT; 237 mb[1] = MSW(stat); 238 qla2x00_async_event(vha, rsp, mb); 239 break; 240 case 0x16: 241 mb[0] = MBA_SCSI_COMPLETION; 242 mb[1] = MSW(stat); 243 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 244 qla2x00_async_event(vha, rsp, mb); 245 break; 246 default: 247 ql_dbg(ql_dbg_async, vha, 0x5028, 248 "Unrecognized interrupt type (%d).\n", stat & 0xff); 249 break; 250 } 251 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 252 RD_REG_WORD_RELAXED(®->hccr); 253 } 254 qla2x00_handle_mbx_completion(ha, status); 255 spin_unlock_irqrestore(&ha->hardware_lock, flags); 256 257 return (IRQ_HANDLED); 258 } 259 260 /** 261 * qla2x00_mbx_completion() - Process mailbox command completions. 262 * @ha: SCSI driver HA context 263 * @mb0: Mailbox0 register 264 */ 265 static void 266 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 267 { 268 uint16_t cnt; 269 uint32_t mboxes; 270 uint16_t __iomem *wptr; 271 struct qla_hw_data *ha = vha->hw; 272 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 273 274 /* Read all mbox registers? */ 275 mboxes = (1 << ha->mbx_count) - 1; 276 if (!ha->mcp) 277 ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERROR.\n"); 278 else 279 mboxes = ha->mcp->in_mb; 280 281 /* Load return mailbox registers. */ 282 ha->flags.mbox_int = 1; 283 ha->mailbox_out[0] = mb0; 284 mboxes >>= 1; 285 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 286 287 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 288 if (IS_QLA2200(ha) && cnt == 8) 289 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 290 if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0)) 291 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 292 else if (mboxes & BIT_0) 293 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 294 295 wptr++; 296 mboxes >>= 1; 297 } 298 } 299 300 static void 301 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) 302 { 303 static char *event[] = 304 { "Complete", "Request Notification", "Time Extension" }; 305 int rval; 306 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24; 307 struct device_reg_82xx __iomem *reg82 = &vha->hw->iobase->isp82; 308 uint16_t __iomem *wptr; 309 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; 310 311 /* Seed data -- mailbox1 -> mailbox7. */ 312 if (IS_QLA81XX(vha->hw) || IS_QLA83XX(vha->hw)) 313 wptr = (uint16_t __iomem *)®24->mailbox1; 314 else if (IS_QLA8044(vha->hw)) 315 wptr = (uint16_t __iomem *)®82->mailbox_out[1]; 316 else 317 return; 318 319 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) 320 mb[cnt] = RD_REG_WORD(wptr); 321 322 ql_dbg(ql_dbg_async, vha, 0x5021, 323 "Inter-Driver Communication %s -- " 324 "%04x %04x %04x %04x %04x %04x %04x.\n", 325 event[aen & 0xff], mb[0], mb[1], mb[2], mb[3], 326 mb[4], mb[5], mb[6]); 327 switch (aen) { 328 /* Handle IDC Error completion case. */ 329 case MBA_IDC_COMPLETE: 330 if (mb[1] >> 15) { 331 vha->hw->flags.idc_compl_status = 1; 332 if (vha->hw->notify_dcbx_comp && !vha->vp_idx) 333 complete(&vha->hw->dcbx_comp); 334 } 335 break; 336 337 case MBA_IDC_NOTIFY: 338 /* Acknowledgement needed? [Notify && non-zero timeout]. */ 339 timeout = (descr >> 8) & 0xf; 340 ql_dbg(ql_dbg_async, vha, 0x5022, 341 "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n", 342 vha->host_no, event[aen & 0xff], timeout); 343 344 if (!timeout) 345 return; 346 rval = qla2x00_post_idc_ack_work(vha, mb); 347 if (rval != QLA_SUCCESS) 348 ql_log(ql_log_warn, vha, 0x5023, 349 "IDC failed to post ACK.\n"); 350 break; 351 case MBA_IDC_TIME_EXT: 352 vha->hw->idc_extend_tmo = descr; 353 ql_dbg(ql_dbg_async, vha, 0x5087, 354 "%lu Inter-Driver Communication %s -- " 355 "Extend timeout by=%d.\n", 356 vha->host_no, event[aen & 0xff], vha->hw->idc_extend_tmo); 357 break; 358 } 359 } 360 361 #define LS_UNKNOWN 2 362 const char * 363 qla2x00_get_link_speed_str(struct qla_hw_data *ha, uint16_t speed) 364 { 365 static const char *const link_speeds[] = { 366 "1", "2", "?", "4", "8", "16", "32", "10" 367 }; 368 #define QLA_LAST_SPEED 7 369 370 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 371 return link_speeds[0]; 372 else if (speed == 0x13) 373 return link_speeds[QLA_LAST_SPEED]; 374 else if (speed < QLA_LAST_SPEED) 375 return link_speeds[speed]; 376 else 377 return link_speeds[LS_UNKNOWN]; 378 } 379 380 static void 381 qla83xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb) 382 { 383 struct qla_hw_data *ha = vha->hw; 384 385 /* 386 * 8200 AEN Interpretation: 387 * mb[0] = AEN code 388 * mb[1] = AEN Reason code 389 * mb[2] = LSW of Peg-Halt Status-1 Register 390 * mb[6] = MSW of Peg-Halt Status-1 Register 391 * mb[3] = LSW of Peg-Halt Status-2 register 392 * mb[7] = MSW of Peg-Halt Status-2 register 393 * mb[4] = IDC Device-State Register value 394 * mb[5] = IDC Driver-Presence Register value 395 */ 396 ql_dbg(ql_dbg_async, vha, 0x506b, "AEN Code: mb[0] = 0x%x AEN reason: " 397 "mb[1] = 0x%x PH-status1: mb[2] = 0x%x PH-status1: mb[6] = 0x%x.\n", 398 mb[0], mb[1], mb[2], mb[6]); 399 ql_dbg(ql_dbg_async, vha, 0x506c, "PH-status2: mb[3] = 0x%x " 400 "PH-status2: mb[7] = 0x%x Device-State: mb[4] = 0x%x " 401 "Drv-Presence: mb[5] = 0x%x.\n", mb[3], mb[7], mb[4], mb[5]); 402 403 if (mb[1] & (IDC_PEG_HALT_STATUS_CHANGE | IDC_NIC_FW_REPORTED_FAILURE | 404 IDC_HEARTBEAT_FAILURE)) { 405 ha->flags.nic_core_hung = 1; 406 ql_log(ql_log_warn, vha, 0x5060, 407 "83XX: F/W Error Reported: Check if reset required.\n"); 408 409 if (mb[1] & IDC_PEG_HALT_STATUS_CHANGE) { 410 uint32_t protocol_engine_id, fw_err_code, err_level; 411 412 /* 413 * IDC_PEG_HALT_STATUS_CHANGE interpretation: 414 * - PEG-Halt Status-1 Register: 415 * (LSW = mb[2], MSW = mb[6]) 416 * Bits 0-7 = protocol-engine ID 417 * Bits 8-28 = f/w error code 418 * Bits 29-31 = Error-level 419 * Error-level 0x1 = Non-Fatal error 420 * Error-level 0x2 = Recoverable Fatal error 421 * Error-level 0x4 = UnRecoverable Fatal error 422 * - PEG-Halt Status-2 Register: 423 * (LSW = mb[3], MSW = mb[7]) 424 */ 425 protocol_engine_id = (mb[2] & 0xff); 426 fw_err_code = (((mb[2] & 0xff00) >> 8) | 427 ((mb[6] & 0x1fff) << 8)); 428 err_level = ((mb[6] & 0xe000) >> 13); 429 ql_log(ql_log_warn, vha, 0x5061, "PegHalt Status-1 " 430 "Register: protocol_engine_id=0x%x " 431 "fw_err_code=0x%x err_level=0x%x.\n", 432 protocol_engine_id, fw_err_code, err_level); 433 ql_log(ql_log_warn, vha, 0x5062, "PegHalt Status-2 " 434 "Register: 0x%x%x.\n", mb[7], mb[3]); 435 if (err_level == ERR_LEVEL_NON_FATAL) { 436 ql_log(ql_log_warn, vha, 0x5063, 437 "Not a fatal error, f/w has recovered " 438 "iteself.\n"); 439 } else if (err_level == ERR_LEVEL_RECOVERABLE_FATAL) { 440 ql_log(ql_log_fatal, vha, 0x5064, 441 "Recoverable Fatal error: Chip reset " 442 "required.\n"); 443 qla83xx_schedule_work(vha, 444 QLA83XX_NIC_CORE_RESET); 445 } else if (err_level == ERR_LEVEL_UNRECOVERABLE_FATAL) { 446 ql_log(ql_log_fatal, vha, 0x5065, 447 "Unrecoverable Fatal error: Set FAILED " 448 "state, reboot required.\n"); 449 qla83xx_schedule_work(vha, 450 QLA83XX_NIC_CORE_UNRECOVERABLE); 451 } 452 } 453 454 if (mb[1] & IDC_NIC_FW_REPORTED_FAILURE) { 455 uint16_t peg_fw_state, nw_interface_link_up; 456 uint16_t nw_interface_signal_detect, sfp_status; 457 uint16_t htbt_counter, htbt_monitor_enable; 458 uint16_t sfp_additonal_info, sfp_multirate; 459 uint16_t sfp_tx_fault, link_speed, dcbx_status; 460 461 /* 462 * IDC_NIC_FW_REPORTED_FAILURE interpretation: 463 * - PEG-to-FC Status Register: 464 * (LSW = mb[2], MSW = mb[6]) 465 * Bits 0-7 = Peg-Firmware state 466 * Bit 8 = N/W Interface Link-up 467 * Bit 9 = N/W Interface signal detected 468 * Bits 10-11 = SFP Status 469 * SFP Status 0x0 = SFP+ transceiver not expected 470 * SFP Status 0x1 = SFP+ transceiver not present 471 * SFP Status 0x2 = SFP+ transceiver invalid 472 * SFP Status 0x3 = SFP+ transceiver present and 473 * valid 474 * Bits 12-14 = Heartbeat Counter 475 * Bit 15 = Heartbeat Monitor Enable 476 * Bits 16-17 = SFP Additional Info 477 * SFP info 0x0 = Unregocnized transceiver for 478 * Ethernet 479 * SFP info 0x1 = SFP+ brand validation failed 480 * SFP info 0x2 = SFP+ speed validation failed 481 * SFP info 0x3 = SFP+ access error 482 * Bit 18 = SFP Multirate 483 * Bit 19 = SFP Tx Fault 484 * Bits 20-22 = Link Speed 485 * Bits 23-27 = Reserved 486 * Bits 28-30 = DCBX Status 487 * DCBX Status 0x0 = DCBX Disabled 488 * DCBX Status 0x1 = DCBX Enabled 489 * DCBX Status 0x2 = DCBX Exchange error 490 * Bit 31 = Reserved 491 */ 492 peg_fw_state = (mb[2] & 0x00ff); 493 nw_interface_link_up = ((mb[2] & 0x0100) >> 8); 494 nw_interface_signal_detect = ((mb[2] & 0x0200) >> 9); 495 sfp_status = ((mb[2] & 0x0c00) >> 10); 496 htbt_counter = ((mb[2] & 0x7000) >> 12); 497 htbt_monitor_enable = ((mb[2] & 0x8000) >> 15); 498 sfp_additonal_info = (mb[6] & 0x0003); 499 sfp_multirate = ((mb[6] & 0x0004) >> 2); 500 sfp_tx_fault = ((mb[6] & 0x0008) >> 3); 501 link_speed = ((mb[6] & 0x0070) >> 4); 502 dcbx_status = ((mb[6] & 0x7000) >> 12); 503 504 ql_log(ql_log_warn, vha, 0x5066, 505 "Peg-to-Fc Status Register:\n" 506 "peg_fw_state=0x%x, nw_interface_link_up=0x%x, " 507 "nw_interface_signal_detect=0x%x" 508 "\nsfp_statis=0x%x.\n ", peg_fw_state, 509 nw_interface_link_up, nw_interface_signal_detect, 510 sfp_status); 511 ql_log(ql_log_warn, vha, 0x5067, 512 "htbt_counter=0x%x, htbt_monitor_enable=0x%x, " 513 "sfp_additonal_info=0x%x, sfp_multirate=0x%x.\n ", 514 htbt_counter, htbt_monitor_enable, 515 sfp_additonal_info, sfp_multirate); 516 ql_log(ql_log_warn, vha, 0x5068, 517 "sfp_tx_fault=0x%x, link_state=0x%x, " 518 "dcbx_status=0x%x.\n", sfp_tx_fault, link_speed, 519 dcbx_status); 520 521 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 522 } 523 524 if (mb[1] & IDC_HEARTBEAT_FAILURE) { 525 ql_log(ql_log_warn, vha, 0x5069, 526 "Heartbeat Failure encountered, chip reset " 527 "required.\n"); 528 529 qla83xx_schedule_work(vha, QLA83XX_NIC_CORE_RESET); 530 } 531 } 532 533 if (mb[1] & IDC_DEVICE_STATE_CHANGE) { 534 ql_log(ql_log_info, vha, 0x506a, 535 "IDC Device-State changed = 0x%x.\n", mb[4]); 536 if (ha->flags.nic_core_reset_owner) 537 return; 538 qla83xx_schedule_work(vha, MBA_IDC_AEN); 539 } 540 } 541 542 int 543 qla2x00_is_a_vp_did(scsi_qla_host_t *vha, uint32_t rscn_entry) 544 { 545 struct qla_hw_data *ha = vha->hw; 546 scsi_qla_host_t *vp; 547 uint32_t vp_did; 548 unsigned long flags; 549 int ret = 0; 550 551 if (!ha->num_vhosts) 552 return ret; 553 554 spin_lock_irqsave(&ha->vport_slock, flags); 555 list_for_each_entry(vp, &ha->vp_list, list) { 556 vp_did = vp->d_id.b24; 557 if (vp_did == rscn_entry) { 558 ret = 1; 559 break; 560 } 561 } 562 spin_unlock_irqrestore(&ha->vport_slock, flags); 563 564 return ret; 565 } 566 567 static inline fc_port_t * 568 qla2x00_find_fcport_by_loopid(scsi_qla_host_t *vha, uint16_t loop_id) 569 { 570 fc_port_t *fcport; 571 572 list_for_each_entry(fcport, &vha->vp_fcports, list) 573 if (fcport->loop_id == loop_id) 574 return fcport; 575 return NULL; 576 } 577 578 /** 579 * qla2x00_async_event() - Process aynchronous events. 580 * @ha: SCSI driver HA context 581 * @mb: Mailbox registers (0 - 3) 582 */ 583 void 584 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) 585 { 586 uint16_t handle_cnt; 587 uint16_t cnt, mbx; 588 uint32_t handles[5]; 589 struct qla_hw_data *ha = vha->hw; 590 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 591 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; 592 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; 593 uint32_t rscn_entry, host_pid; 594 unsigned long flags; 595 fc_port_t *fcport = NULL; 596 597 /* Setup to process RIO completion. */ 598 handle_cnt = 0; 599 if (IS_CNA_CAPABLE(ha)) 600 goto skip_rio; 601 switch (mb[0]) { 602 case MBA_SCSI_COMPLETION: 603 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 604 handle_cnt = 1; 605 break; 606 case MBA_CMPLT_1_16BIT: 607 handles[0] = mb[1]; 608 handle_cnt = 1; 609 mb[0] = MBA_SCSI_COMPLETION; 610 break; 611 case MBA_CMPLT_2_16BIT: 612 handles[0] = mb[1]; 613 handles[1] = mb[2]; 614 handle_cnt = 2; 615 mb[0] = MBA_SCSI_COMPLETION; 616 break; 617 case MBA_CMPLT_3_16BIT: 618 handles[0] = mb[1]; 619 handles[1] = mb[2]; 620 handles[2] = mb[3]; 621 handle_cnt = 3; 622 mb[0] = MBA_SCSI_COMPLETION; 623 break; 624 case MBA_CMPLT_4_16BIT: 625 handles[0] = mb[1]; 626 handles[1] = mb[2]; 627 handles[2] = mb[3]; 628 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 629 handle_cnt = 4; 630 mb[0] = MBA_SCSI_COMPLETION; 631 break; 632 case MBA_CMPLT_5_16BIT: 633 handles[0] = mb[1]; 634 handles[1] = mb[2]; 635 handles[2] = mb[3]; 636 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 637 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 638 handle_cnt = 5; 639 mb[0] = MBA_SCSI_COMPLETION; 640 break; 641 case MBA_CMPLT_2_32BIT: 642 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 643 handles[1] = le32_to_cpu( 644 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 645 RD_MAILBOX_REG(ha, reg, 6)); 646 handle_cnt = 2; 647 mb[0] = MBA_SCSI_COMPLETION; 648 break; 649 default: 650 break; 651 } 652 skip_rio: 653 switch (mb[0]) { 654 case MBA_SCSI_COMPLETION: /* Fast Post */ 655 if (!vha->flags.online) 656 break; 657 658 for (cnt = 0; cnt < handle_cnt; cnt++) 659 qla2x00_process_completed_request(vha, rsp->req, 660 handles[cnt]); 661 break; 662 663 case MBA_RESET: /* Reset */ 664 ql_dbg(ql_dbg_async, vha, 0x5002, 665 "Asynchronous RESET.\n"); 666 667 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 668 break; 669 670 case MBA_SYSTEM_ERR: /* System Error */ 671 mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha)) ? 672 RD_REG_WORD(®24->mailbox7) : 0; 673 ql_log(ql_log_warn, vha, 0x5003, 674 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh " 675 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); 676 677 ha->isp_ops->fw_dump(vha, 1); 678 679 if (IS_FWI2_CAPABLE(ha)) { 680 if (mb[1] == 0 && mb[2] == 0) { 681 ql_log(ql_log_fatal, vha, 0x5004, 682 "Unrecoverable Hardware Error: adapter " 683 "marked OFFLINE!\n"); 684 vha->flags.online = 0; 685 vha->device_flags |= DFLG_DEV_FAILED; 686 } else { 687 /* Check to see if MPI timeout occurred */ 688 if ((mbx & MBX_3) && (ha->port_no == 0)) 689 set_bit(MPI_RESET_NEEDED, 690 &vha->dpc_flags); 691 692 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 693 } 694 } else if (mb[1] == 0) { 695 ql_log(ql_log_fatal, vha, 0x5005, 696 "Unrecoverable Hardware Error: adapter marked " 697 "OFFLINE!\n"); 698 vha->flags.online = 0; 699 vha->device_flags |= DFLG_DEV_FAILED; 700 } else 701 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 702 break; 703 704 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 705 ql_log(ql_log_warn, vha, 0x5006, 706 "ISP Request Transfer Error (%x).\n", mb[1]); 707 708 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 709 break; 710 711 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 712 ql_log(ql_log_warn, vha, 0x5007, 713 "ISP Response Transfer Error (%x).\n", mb[1]); 714 715 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 716 break; 717 718 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 719 ql_dbg(ql_dbg_async, vha, 0x5008, 720 "Asynchronous WAKEUP_THRES (%x).\n", mb[1]); 721 break; 722 723 case MBA_LOOP_INIT_ERR: 724 ql_log(ql_log_warn, vha, 0x5090, 725 "LOOP INIT ERROR (%x).\n", mb[1]); 726 ha->isp_ops->fw_dump(vha, 1); 727 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 728 break; 729 730 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 731 ql_dbg(ql_dbg_async, vha, 0x5009, 732 "LIP occurred (%x).\n", mb[1]); 733 734 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 735 atomic_set(&vha->loop_state, LOOP_DOWN); 736 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 737 qla2x00_mark_all_devices_lost(vha, 1); 738 } 739 740 if (vha->vp_idx) { 741 atomic_set(&vha->vp_state, VP_FAILED); 742 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 743 } 744 745 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 746 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 747 748 vha->flags.management_server_logged_in = 0; 749 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 750 break; 751 752 case MBA_LOOP_UP: /* Loop Up Event */ 753 if (IS_QLA2100(ha) || IS_QLA2200(ha)) 754 ha->link_data_rate = PORT_SPEED_1GB; 755 else 756 ha->link_data_rate = mb[1]; 757 758 ql_log(ql_log_info, vha, 0x500a, 759 "LOOP UP detected (%s Gbps).\n", 760 qla2x00_get_link_speed_str(ha, ha->link_data_rate)); 761 762 vha->flags.management_server_logged_in = 0; 763 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 764 break; 765 766 case MBA_LOOP_DOWN: /* Loop Down Event */ 767 mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha)) 768 ? RD_REG_WORD(®24->mailbox4) : 0; 769 mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4]) 770 : mbx; 771 ql_log(ql_log_info, vha, 0x500b, 772 "LOOP DOWN detected (%x %x %x %x).\n", 773 mb[1], mb[2], mb[3], mbx); 774 775 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 776 atomic_set(&vha->loop_state, LOOP_DOWN); 777 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 778 /* 779 * In case of loop down, restore WWPN from 780 * NVRAM in case of FA-WWPN capable ISP 781 * Restore for Physical Port only 782 */ 783 if (!vha->vp_idx) { 784 if (ha->flags.fawwpn_enabled) { 785 void *wwpn = ha->init_cb->port_name; 786 memcpy(vha->port_name, wwpn, WWN_SIZE); 787 fc_host_port_name(vha->host) = 788 wwn_to_u64(vha->port_name); 789 ql_dbg(ql_dbg_init + ql_dbg_verbose, 790 vha, 0x0144, "LOOP DOWN detected," 791 "restore WWPN %016llx\n", 792 wwn_to_u64(vha->port_name)); 793 } 794 795 clear_bit(VP_CONFIG_OK, &vha->vp_flags); 796 } 797 798 vha->device_flags |= DFLG_NO_CABLE; 799 qla2x00_mark_all_devices_lost(vha, 1); 800 } 801 802 if (vha->vp_idx) { 803 atomic_set(&vha->vp_state, VP_FAILED); 804 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 805 } 806 807 vha->flags.management_server_logged_in = 0; 808 ha->link_data_rate = PORT_SPEED_UNKNOWN; 809 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 810 break; 811 812 case MBA_LIP_RESET: /* LIP reset occurred */ 813 ql_dbg(ql_dbg_async, vha, 0x500c, 814 "LIP reset occurred (%x).\n", mb[1]); 815 816 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 817 atomic_set(&vha->loop_state, LOOP_DOWN); 818 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 819 qla2x00_mark_all_devices_lost(vha, 1); 820 } 821 822 if (vha->vp_idx) { 823 atomic_set(&vha->vp_state, VP_FAILED); 824 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 825 } 826 827 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 828 829 ha->operating_mode = LOOP; 830 vha->flags.management_server_logged_in = 0; 831 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 832 break; 833 834 /* case MBA_DCBX_COMPLETE: */ 835 case MBA_POINT_TO_POINT: /* Point-to-Point */ 836 if (IS_QLA2100(ha)) 837 break; 838 839 if (IS_CNA_CAPABLE(ha)) { 840 ql_dbg(ql_dbg_async, vha, 0x500d, 841 "DCBX Completed -- %04x %04x %04x.\n", 842 mb[1], mb[2], mb[3]); 843 if (ha->notify_dcbx_comp && !vha->vp_idx) 844 complete(&ha->dcbx_comp); 845 846 } else 847 ql_dbg(ql_dbg_async, vha, 0x500e, 848 "Asynchronous P2P MODE received.\n"); 849 850 /* 851 * Until there's a transition from loop down to loop up, treat 852 * this as loop down only. 853 */ 854 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 855 atomic_set(&vha->loop_state, LOOP_DOWN); 856 if (!atomic_read(&vha->loop_down_timer)) 857 atomic_set(&vha->loop_down_timer, 858 LOOP_DOWN_TIME); 859 qla2x00_mark_all_devices_lost(vha, 1); 860 } 861 862 if (vha->vp_idx) { 863 atomic_set(&vha->vp_state, VP_FAILED); 864 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 865 } 866 867 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 868 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 869 870 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 871 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 872 873 ha->flags.gpsc_supported = 1; 874 vha->flags.management_server_logged_in = 0; 875 break; 876 877 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 878 if (IS_QLA2100(ha)) 879 break; 880 881 ql_dbg(ql_dbg_async, vha, 0x500f, 882 "Configuration change detected: value=%x.\n", mb[1]); 883 884 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 885 atomic_set(&vha->loop_state, LOOP_DOWN); 886 if (!atomic_read(&vha->loop_down_timer)) 887 atomic_set(&vha->loop_down_timer, 888 LOOP_DOWN_TIME); 889 qla2x00_mark_all_devices_lost(vha, 1); 890 } 891 892 if (vha->vp_idx) { 893 atomic_set(&vha->vp_state, VP_FAILED); 894 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 895 } 896 897 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 898 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 899 break; 900 901 case MBA_PORT_UPDATE: /* Port database update */ 902 /* 903 * Handle only global and vn-port update events 904 * 905 * Relevant inputs: 906 * mb[1] = N_Port handle of changed port 907 * OR 0xffff for global event 908 * mb[2] = New login state 909 * 7 = Port logged out 910 * mb[3] = LSB is vp_idx, 0xff = all vps 911 * 912 * Skip processing if: 913 * Event is global, vp_idx is NOT all vps, 914 * vp_idx does not match 915 * Event is not global, vp_idx does not match 916 */ 917 if (IS_QLA2XXX_MIDTYPE(ha) && 918 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 919 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 920 break; 921 922 if (mb[2] == 0x7) { 923 ql_dbg(ql_dbg_async, vha, 0x5010, 924 "Port %s %04x %04x %04x.\n", 925 mb[1] == 0xffff ? "unavailable" : "logout", 926 mb[1], mb[2], mb[3]); 927 928 if (mb[1] == 0xffff) 929 goto global_port_update; 930 931 /* Port logout */ 932 fcport = qla2x00_find_fcport_by_loopid(vha, mb[1]); 933 if (!fcport) 934 break; 935 if (atomic_read(&fcport->state) != FCS_ONLINE) 936 break; 937 ql_dbg(ql_dbg_async, vha, 0x508a, 938 "Marking port lost loopid=%04x portid=%06x.\n", 939 fcport->loop_id, fcport->d_id.b24); 940 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 941 break; 942 943 global_port_update: 944 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 945 atomic_set(&vha->loop_state, LOOP_DOWN); 946 atomic_set(&vha->loop_down_timer, 947 LOOP_DOWN_TIME); 948 vha->device_flags |= DFLG_NO_CABLE; 949 qla2x00_mark_all_devices_lost(vha, 1); 950 } 951 952 if (vha->vp_idx) { 953 atomic_set(&vha->vp_state, VP_FAILED); 954 fc_vport_set_state(vha->fc_vport, 955 FC_VPORT_FAILED); 956 qla2x00_mark_all_devices_lost(vha, 1); 957 } 958 959 vha->flags.management_server_logged_in = 0; 960 ha->link_data_rate = PORT_SPEED_UNKNOWN; 961 break; 962 } 963 964 /* 965 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 966 * event etc. earlier indicating loop is down) then process 967 * it. Otherwise ignore it and Wait for RSCN to come in. 968 */ 969 atomic_set(&vha->loop_down_timer, 0); 970 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 971 atomic_read(&vha->loop_state) != LOOP_DEAD) { 972 ql_dbg(ql_dbg_async, vha, 0x5011, 973 "Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n", 974 mb[1], mb[2], mb[3]); 975 976 qlt_async_event(mb[0], vha, mb); 977 break; 978 } 979 980 ql_dbg(ql_dbg_async, vha, 0x5012, 981 "Port database changed %04x %04x %04x.\n", 982 mb[1], mb[2], mb[3]); 983 984 /* 985 * Mark all devices as missing so we will login again. 986 */ 987 atomic_set(&vha->loop_state, LOOP_UP); 988 989 qla2x00_mark_all_devices_lost(vha, 1); 990 991 if (vha->vp_idx == 0 && !qla_ini_mode_enabled(vha)) 992 set_bit(SCR_PENDING, &vha->dpc_flags); 993 994 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 995 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 996 set_bit(VP_CONFIG_OK, &vha->vp_flags); 997 998 qlt_async_event(mb[0], vha, mb); 999 break; 1000 1001 case MBA_RSCN_UPDATE: /* State Change Registration */ 1002 /* Check if the Vport has issued a SCR */ 1003 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 1004 break; 1005 /* Only handle SCNs for our Vport index. */ 1006 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 1007 break; 1008 1009 ql_dbg(ql_dbg_async, vha, 0x5013, 1010 "RSCN database changed -- %04x %04x %04x.\n", 1011 mb[1], mb[2], mb[3]); 1012 1013 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 1014 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 1015 | vha->d_id.b.al_pa; 1016 if (rscn_entry == host_pid) { 1017 ql_dbg(ql_dbg_async, vha, 0x5014, 1018 "Ignoring RSCN update to local host " 1019 "port ID (%06x).\n", host_pid); 1020 break; 1021 } 1022 1023 /* Ignore reserved bits from RSCN-payload. */ 1024 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 1025 1026 /* Skip RSCNs for virtual ports on the same physical port */ 1027 if (qla2x00_is_a_vp_did(vha, rscn_entry)) 1028 break; 1029 1030 /* 1031 * Search for the rport related to this RSCN entry and mark it 1032 * as lost. 1033 */ 1034 list_for_each_entry(fcport, &vha->vp_fcports, list) { 1035 if (atomic_read(&fcport->state) != FCS_ONLINE) 1036 continue; 1037 if (fcport->d_id.b24 == rscn_entry) { 1038 qla2x00_mark_device_lost(vha, fcport, 0, 0); 1039 break; 1040 } 1041 } 1042 1043 atomic_set(&vha->loop_down_timer, 0); 1044 vha->flags.management_server_logged_in = 0; 1045 1046 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 1047 set_bit(RSCN_UPDATE, &vha->dpc_flags); 1048 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 1049 break; 1050 1051 /* case MBA_RIO_RESPONSE: */ 1052 case MBA_ZIO_RESPONSE: 1053 ql_dbg(ql_dbg_async, vha, 0x5015, 1054 "[R|Z]IO update completion.\n"); 1055 1056 if (IS_FWI2_CAPABLE(ha)) 1057 qla24xx_process_response_queue(vha, rsp); 1058 else 1059 qla2x00_process_response_queue(rsp); 1060 break; 1061 1062 case MBA_DISCARD_RND_FRAME: 1063 ql_dbg(ql_dbg_async, vha, 0x5016, 1064 "Discard RND Frame -- %04x %04x %04x.\n", 1065 mb[1], mb[2], mb[3]); 1066 break; 1067 1068 case MBA_TRACE_NOTIFICATION: 1069 ql_dbg(ql_dbg_async, vha, 0x5017, 1070 "Trace Notification -- %04x %04x.\n", mb[1], mb[2]); 1071 break; 1072 1073 case MBA_ISP84XX_ALERT: 1074 ql_dbg(ql_dbg_async, vha, 0x5018, 1075 "ISP84XX Alert Notification -- %04x %04x %04x.\n", 1076 mb[1], mb[2], mb[3]); 1077 1078 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 1079 switch (mb[1]) { 1080 case A84_PANIC_RECOVERY: 1081 ql_log(ql_log_info, vha, 0x5019, 1082 "Alert 84XX: panic recovery %04x %04x.\n", 1083 mb[2], mb[3]); 1084 break; 1085 case A84_OP_LOGIN_COMPLETE: 1086 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 1087 ql_log(ql_log_info, vha, 0x501a, 1088 "Alert 84XX: firmware version %x.\n", 1089 ha->cs84xx->op_fw_version); 1090 break; 1091 case A84_DIAG_LOGIN_COMPLETE: 1092 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1093 ql_log(ql_log_info, vha, 0x501b, 1094 "Alert 84XX: diagnostic firmware version %x.\n", 1095 ha->cs84xx->diag_fw_version); 1096 break; 1097 case A84_GOLD_LOGIN_COMPLETE: 1098 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 1099 ha->cs84xx->fw_update = 1; 1100 ql_log(ql_log_info, vha, 0x501c, 1101 "Alert 84XX: gold firmware version %x.\n", 1102 ha->cs84xx->gold_fw_version); 1103 break; 1104 default: 1105 ql_log(ql_log_warn, vha, 0x501d, 1106 "Alert 84xx: Invalid Alert %04x %04x %04x.\n", 1107 mb[1], mb[2], mb[3]); 1108 } 1109 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 1110 break; 1111 case MBA_DCBX_START: 1112 ql_dbg(ql_dbg_async, vha, 0x501e, 1113 "DCBX Started -- %04x %04x %04x.\n", 1114 mb[1], mb[2], mb[3]); 1115 break; 1116 case MBA_DCBX_PARAM_UPDATE: 1117 ql_dbg(ql_dbg_async, vha, 0x501f, 1118 "DCBX Parameters Updated -- %04x %04x %04x.\n", 1119 mb[1], mb[2], mb[3]); 1120 break; 1121 case MBA_FCF_CONF_ERR: 1122 ql_dbg(ql_dbg_async, vha, 0x5020, 1123 "FCF Configuration Error -- %04x %04x %04x.\n", 1124 mb[1], mb[2], mb[3]); 1125 break; 1126 case MBA_IDC_NOTIFY: 1127 if (IS_QLA8031(vha->hw) || IS_QLA8044(ha)) { 1128 mb[4] = RD_REG_WORD(®24->mailbox4); 1129 if (((mb[2] & 0x7fff) == MBC_PORT_RESET || 1130 (mb[2] & 0x7fff) == MBC_SET_PORT_CONFIG) && 1131 (mb[4] & INTERNAL_LOOPBACK_MASK) != 0) { 1132 set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags); 1133 /* 1134 * Extend loop down timer since port is active. 1135 */ 1136 if (atomic_read(&vha->loop_state) == LOOP_DOWN) 1137 atomic_set(&vha->loop_down_timer, 1138 LOOP_DOWN_TIME); 1139 qla2xxx_wake_dpc(vha); 1140 } 1141 } 1142 case MBA_IDC_COMPLETE: 1143 if (ha->notify_lb_portup_comp && !vha->vp_idx) 1144 complete(&ha->lb_portup_comp); 1145 /* Fallthru */ 1146 case MBA_IDC_TIME_EXT: 1147 if (IS_QLA81XX(vha->hw) || IS_QLA8031(vha->hw) || 1148 IS_QLA8044(ha)) 1149 qla81xx_idc_event(vha, mb[0], mb[1]); 1150 break; 1151 1152 case MBA_IDC_AEN: 1153 mb[4] = RD_REG_WORD(®24->mailbox4); 1154 mb[5] = RD_REG_WORD(®24->mailbox5); 1155 mb[6] = RD_REG_WORD(®24->mailbox6); 1156 mb[7] = RD_REG_WORD(®24->mailbox7); 1157 qla83xx_handle_8200_aen(vha, mb); 1158 break; 1159 1160 case MBA_DPORT_DIAGNOSTICS: 1161 ql_dbg(ql_dbg_async, vha, 0x5052, 1162 "D-Port Diagnostics: %04x result=%s\n", 1163 mb[0], 1164 mb[1] == 0 ? "start" : 1165 mb[1] == 1 ? "done (pass)" : 1166 mb[1] == 2 ? "done (error)" : "other"); 1167 break; 1168 1169 case MBA_TEMPERATURE_ALERT: 1170 ql_dbg(ql_dbg_async, vha, 0x505e, 1171 "TEMPERATURE ALERT: %04x %04x %04x\n", mb[1], mb[2], mb[3]); 1172 if (mb[1] == 0x12) 1173 schedule_work(&ha->board_disable); 1174 break; 1175 1176 default: 1177 ql_dbg(ql_dbg_async, vha, 0x5057, 1178 "Unknown AEN:%04x %04x %04x %04x\n", 1179 mb[0], mb[1], mb[2], mb[3]); 1180 } 1181 1182 qlt_async_event(mb[0], vha, mb); 1183 1184 if (!vha->vp_idx && ha->num_vhosts) 1185 qla2x00_alert_all_vps(rsp, mb); 1186 } 1187 1188 /** 1189 * qla2x00_process_completed_request() - Process a Fast Post response. 1190 * @ha: SCSI driver HA context 1191 * @index: SRB index 1192 */ 1193 void 1194 qla2x00_process_completed_request(struct scsi_qla_host *vha, 1195 struct req_que *req, uint32_t index) 1196 { 1197 srb_t *sp; 1198 struct qla_hw_data *ha = vha->hw; 1199 1200 /* Validate handle. */ 1201 if (index >= req->num_outstanding_cmds) { 1202 ql_log(ql_log_warn, vha, 0x3014, 1203 "Invalid SCSI command index (%x).\n", index); 1204 1205 if (IS_P3P_TYPE(ha)) 1206 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1207 else 1208 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1209 return; 1210 } 1211 1212 sp = req->outstanding_cmds[index]; 1213 if (sp) { 1214 /* Free outstanding command slot. */ 1215 req->outstanding_cmds[index] = NULL; 1216 1217 /* Save ISP completion status */ 1218 sp->done(ha, sp, DID_OK << 16); 1219 } else { 1220 ql_log(ql_log_warn, vha, 0x3016, "Invalid SCSI SRB.\n"); 1221 1222 if (IS_P3P_TYPE(ha)) 1223 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1224 else 1225 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1226 } 1227 } 1228 1229 srb_t * 1230 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 1231 struct req_que *req, void *iocb) 1232 { 1233 struct qla_hw_data *ha = vha->hw; 1234 sts_entry_t *pkt = iocb; 1235 srb_t *sp = NULL; 1236 uint16_t index; 1237 1238 index = LSW(pkt->handle); 1239 if (index >= req->num_outstanding_cmds) { 1240 ql_log(ql_log_warn, vha, 0x5031, 1241 "Invalid command index (%x).\n", index); 1242 if (IS_P3P_TYPE(ha)) 1243 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1244 else 1245 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1246 goto done; 1247 } 1248 sp = req->outstanding_cmds[index]; 1249 if (!sp) { 1250 ql_log(ql_log_warn, vha, 0x5032, 1251 "Invalid completion handle (%x) -- timed-out.\n", index); 1252 return sp; 1253 } 1254 if (sp->handle != index) { 1255 ql_log(ql_log_warn, vha, 0x5033, 1256 "SRB handle (%x) mismatch %x.\n", sp->handle, index); 1257 return NULL; 1258 } 1259 1260 req->outstanding_cmds[index] = NULL; 1261 1262 done: 1263 return sp; 1264 } 1265 1266 static void 1267 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 1268 struct mbx_entry *mbx) 1269 { 1270 const char func[] = "MBX-IOCB"; 1271 const char *type; 1272 fc_port_t *fcport; 1273 srb_t *sp; 1274 struct srb_iocb *lio; 1275 uint16_t *data; 1276 uint16_t status; 1277 1278 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 1279 if (!sp) 1280 return; 1281 1282 lio = &sp->u.iocb_cmd; 1283 type = sp->name; 1284 fcport = sp->fcport; 1285 data = lio->u.logio.data; 1286 1287 data[0] = MBS_COMMAND_ERROR; 1288 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1289 QLA_LOGIO_LOGIN_RETRIED : 0; 1290 if (mbx->entry_status) { 1291 ql_dbg(ql_dbg_async, vha, 0x5043, 1292 "Async-%s error entry - hdl=%x portid=%02x%02x%02x " 1293 "entry-status=%x status=%x state-flag=%x " 1294 "status-flags=%x.\n", type, sp->handle, 1295 fcport->d_id.b.domain, fcport->d_id.b.area, 1296 fcport->d_id.b.al_pa, mbx->entry_status, 1297 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 1298 le16_to_cpu(mbx->status_flags)); 1299 1300 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029, 1301 (uint8_t *)mbx, sizeof(*mbx)); 1302 1303 goto logio_done; 1304 } 1305 1306 status = le16_to_cpu(mbx->status); 1307 if (status == 0x30 && sp->type == SRB_LOGIN_CMD && 1308 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 1309 status = 0; 1310 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 1311 ql_dbg(ql_dbg_async, vha, 0x5045, 1312 "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n", 1313 type, sp->handle, fcport->d_id.b.domain, 1314 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1315 le16_to_cpu(mbx->mb1)); 1316 1317 data[0] = MBS_COMMAND_COMPLETE; 1318 if (sp->type == SRB_LOGIN_CMD) { 1319 fcport->port_type = FCT_TARGET; 1320 if (le16_to_cpu(mbx->mb1) & BIT_0) 1321 fcport->port_type = FCT_INITIATOR; 1322 else if (le16_to_cpu(mbx->mb1) & BIT_1) 1323 fcport->flags |= FCF_FCP2_DEVICE; 1324 } 1325 goto logio_done; 1326 } 1327 1328 data[0] = le16_to_cpu(mbx->mb0); 1329 switch (data[0]) { 1330 case MBS_PORT_ID_USED: 1331 data[1] = le16_to_cpu(mbx->mb1); 1332 break; 1333 case MBS_LOOP_ID_USED: 1334 break; 1335 default: 1336 data[0] = MBS_COMMAND_ERROR; 1337 break; 1338 } 1339 1340 ql_log(ql_log_warn, vha, 0x5046, 1341 "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x " 1342 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle, 1343 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, 1344 status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 1345 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 1346 le16_to_cpu(mbx->mb7)); 1347 1348 logio_done: 1349 sp->done(vha, sp, 0); 1350 } 1351 1352 static void 1353 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1354 sts_entry_t *pkt, int iocb_type) 1355 { 1356 const char func[] = "CT_IOCB"; 1357 const char *type; 1358 srb_t *sp; 1359 struct fc_bsg_job *bsg_job; 1360 uint16_t comp_status; 1361 int res; 1362 1363 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1364 if (!sp) 1365 return; 1366 1367 bsg_job = sp->u.bsg_job; 1368 1369 type = "ct pass-through"; 1370 1371 comp_status = le16_to_cpu(pkt->comp_status); 1372 1373 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1374 * fc payload to the caller 1375 */ 1376 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1377 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1378 1379 if (comp_status != CS_COMPLETE) { 1380 if (comp_status == CS_DATA_UNDERRUN) { 1381 res = DID_OK << 16; 1382 bsg_job->reply->reply_payload_rcv_len = 1383 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1384 1385 ql_log(ql_log_warn, vha, 0x5048, 1386 "CT pass-through-%s error " 1387 "comp_status-status=0x%x total_byte = 0x%x.\n", 1388 type, comp_status, 1389 bsg_job->reply->reply_payload_rcv_len); 1390 } else { 1391 ql_log(ql_log_warn, vha, 0x5049, 1392 "CT pass-through-%s error " 1393 "comp_status-status=0x%x.\n", type, comp_status); 1394 res = DID_ERROR << 16; 1395 bsg_job->reply->reply_payload_rcv_len = 0; 1396 } 1397 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035, 1398 (uint8_t *)pkt, sizeof(*pkt)); 1399 } else { 1400 res = DID_OK << 16; 1401 bsg_job->reply->reply_payload_rcv_len = 1402 bsg_job->reply_payload.payload_len; 1403 bsg_job->reply_len = 0; 1404 } 1405 1406 sp->done(vha, sp, res); 1407 } 1408 1409 static void 1410 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1411 struct sts_entry_24xx *pkt, int iocb_type) 1412 { 1413 const char func[] = "ELS_CT_IOCB"; 1414 const char *type; 1415 srb_t *sp; 1416 struct fc_bsg_job *bsg_job; 1417 uint16_t comp_status; 1418 uint32_t fw_status[3]; 1419 uint8_t* fw_sts_ptr; 1420 int res; 1421 1422 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1423 if (!sp) 1424 return; 1425 bsg_job = sp->u.bsg_job; 1426 1427 type = NULL; 1428 switch (sp->type) { 1429 case SRB_ELS_CMD_RPT: 1430 case SRB_ELS_CMD_HST: 1431 type = "els"; 1432 break; 1433 case SRB_CT_CMD: 1434 type = "ct pass-through"; 1435 break; 1436 case SRB_ELS_DCMD: 1437 type = "Driver ELS logo"; 1438 ql_dbg(ql_dbg_user, vha, 0x5047, 1439 "Completing %s: (%p) type=%d.\n", type, sp, sp->type); 1440 sp->done(vha, sp, 0); 1441 return; 1442 default: 1443 ql_dbg(ql_dbg_user, vha, 0x503e, 1444 "Unrecognized SRB: (%p) type=%d.\n", sp, sp->type); 1445 return; 1446 } 1447 1448 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1449 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1450 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1451 1452 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1453 * fc payload to the caller 1454 */ 1455 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1456 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1457 1458 if (comp_status != CS_COMPLETE) { 1459 if (comp_status == CS_DATA_UNDERRUN) { 1460 res = DID_OK << 16; 1461 bsg_job->reply->reply_payload_rcv_len = 1462 le16_to_cpu(((struct els_sts_entry_24xx *)pkt)->total_byte_count); 1463 1464 ql_dbg(ql_dbg_user, vha, 0x503f, 1465 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1466 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1467 type, sp->handle, comp_status, fw_status[1], fw_status[2], 1468 le16_to_cpu(((struct els_sts_entry_24xx *) 1469 pkt)->total_byte_count)); 1470 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1471 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1472 } 1473 else { 1474 ql_dbg(ql_dbg_user, vha, 0x5040, 1475 "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x " 1476 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1477 type, sp->handle, comp_status, 1478 le16_to_cpu(((struct els_sts_entry_24xx *) 1479 pkt)->error_subcode_1), 1480 le16_to_cpu(((struct els_sts_entry_24xx *) 1481 pkt)->error_subcode_2)); 1482 res = DID_ERROR << 16; 1483 bsg_job->reply->reply_payload_rcv_len = 0; 1484 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1485 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1486 } 1487 ql_dump_buffer(ql_dbg_user + ql_dbg_buffer, vha, 0x5056, 1488 (uint8_t *)pkt, sizeof(*pkt)); 1489 } 1490 else { 1491 res = DID_OK << 16; 1492 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1493 bsg_job->reply_len = 0; 1494 } 1495 1496 sp->done(vha, sp, res); 1497 } 1498 1499 static void 1500 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1501 struct logio_entry_24xx *logio) 1502 { 1503 const char func[] = "LOGIO-IOCB"; 1504 const char *type; 1505 fc_port_t *fcport; 1506 srb_t *sp; 1507 struct srb_iocb *lio; 1508 uint16_t *data; 1509 uint32_t iop[2]; 1510 1511 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1512 if (!sp) 1513 return; 1514 1515 lio = &sp->u.iocb_cmd; 1516 type = sp->name; 1517 fcport = sp->fcport; 1518 data = lio->u.logio.data; 1519 1520 data[0] = MBS_COMMAND_ERROR; 1521 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1522 QLA_LOGIO_LOGIN_RETRIED : 0; 1523 if (logio->entry_status) { 1524 ql_log(ql_log_warn, fcport->vha, 0x5034, 1525 "Async-%s error entry - hdl=%x" 1526 "portid=%02x%02x%02x entry-status=%x.\n", 1527 type, sp->handle, fcport->d_id.b.domain, 1528 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1529 logio->entry_status); 1530 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d, 1531 (uint8_t *)logio, sizeof(*logio)); 1532 1533 goto logio_done; 1534 } 1535 1536 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1537 ql_dbg(ql_dbg_async, fcport->vha, 0x5036, 1538 "Async-%s complete - hdl=%x portid=%02x%02x%02x " 1539 "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1540 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1541 le32_to_cpu(logio->io_parameter[0])); 1542 1543 data[0] = MBS_COMMAND_COMPLETE; 1544 if (sp->type != SRB_LOGIN_CMD) 1545 goto logio_done; 1546 1547 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1548 if (iop[0] & BIT_4) { 1549 fcport->port_type = FCT_TARGET; 1550 if (iop[0] & BIT_8) 1551 fcport->flags |= FCF_FCP2_DEVICE; 1552 } else if (iop[0] & BIT_5) 1553 fcport->port_type = FCT_INITIATOR; 1554 1555 if (iop[0] & BIT_7) 1556 fcport->flags |= FCF_CONF_COMP_SUPPORTED; 1557 1558 if (logio->io_parameter[7] || logio->io_parameter[8]) 1559 fcport->supported_classes |= FC_COS_CLASS2; 1560 if (logio->io_parameter[9] || logio->io_parameter[10]) 1561 fcport->supported_classes |= FC_COS_CLASS3; 1562 1563 goto logio_done; 1564 } 1565 1566 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1567 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1568 switch (iop[0]) { 1569 case LSC_SCODE_PORTID_USED: 1570 data[0] = MBS_PORT_ID_USED; 1571 data[1] = LSW(iop[1]); 1572 break; 1573 case LSC_SCODE_NPORT_USED: 1574 data[0] = MBS_LOOP_ID_USED; 1575 break; 1576 default: 1577 data[0] = MBS_COMMAND_ERROR; 1578 break; 1579 } 1580 1581 ql_dbg(ql_dbg_async, fcport->vha, 0x5037, 1582 "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x " 1583 "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain, 1584 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1585 le16_to_cpu(logio->comp_status), 1586 le32_to_cpu(logio->io_parameter[0]), 1587 le32_to_cpu(logio->io_parameter[1])); 1588 1589 logio_done: 1590 sp->done(vha, sp, 0); 1591 } 1592 1593 static void 1594 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, void *tsk) 1595 { 1596 const char func[] = "TMF-IOCB"; 1597 const char *type; 1598 fc_port_t *fcport; 1599 srb_t *sp; 1600 struct srb_iocb *iocb; 1601 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; 1602 1603 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); 1604 if (!sp) 1605 return; 1606 1607 iocb = &sp->u.iocb_cmd; 1608 type = sp->name; 1609 fcport = sp->fcport; 1610 iocb->u.tmf.data = QLA_SUCCESS; 1611 1612 if (sts->entry_status) { 1613 ql_log(ql_log_warn, fcport->vha, 0x5038, 1614 "Async-%s error - hdl=%x entry-status(%x).\n", 1615 type, sp->handle, sts->entry_status); 1616 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1617 } else if (sts->comp_status != cpu_to_le16(CS_COMPLETE)) { 1618 ql_log(ql_log_warn, fcport->vha, 0x5039, 1619 "Async-%s error - hdl=%x completion status(%x).\n", 1620 type, sp->handle, sts->comp_status); 1621 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1622 } else if ((le16_to_cpu(sts->scsi_status) & 1623 SS_RESPONSE_INFO_LEN_VALID)) { 1624 if (le32_to_cpu(sts->rsp_data_len) < 4) { 1625 ql_log(ql_log_warn, fcport->vha, 0x503b, 1626 "Async-%s error - hdl=%x not enough response(%d).\n", 1627 type, sp->handle, sts->rsp_data_len); 1628 } else if (sts->data[3]) { 1629 ql_log(ql_log_warn, fcport->vha, 0x503c, 1630 "Async-%s error - hdl=%x response(%x).\n", 1631 type, sp->handle, sts->data[3]); 1632 iocb->u.tmf.data = QLA_FUNCTION_FAILED; 1633 } 1634 } 1635 1636 if (iocb->u.tmf.data != QLA_SUCCESS) 1637 ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5055, 1638 (uint8_t *)sts, sizeof(*sts)); 1639 1640 sp->done(vha, sp, 0); 1641 } 1642 1643 /** 1644 * qla2x00_process_response_queue() - Process response queue entries. 1645 * @ha: SCSI driver HA context 1646 */ 1647 void 1648 qla2x00_process_response_queue(struct rsp_que *rsp) 1649 { 1650 struct scsi_qla_host *vha; 1651 struct qla_hw_data *ha = rsp->hw; 1652 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1653 sts_entry_t *pkt; 1654 uint16_t handle_cnt; 1655 uint16_t cnt; 1656 1657 vha = pci_get_drvdata(ha->pdev); 1658 1659 if (!vha->flags.online) 1660 return; 1661 1662 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1663 pkt = (sts_entry_t *)rsp->ring_ptr; 1664 1665 rsp->ring_index++; 1666 if (rsp->ring_index == rsp->length) { 1667 rsp->ring_index = 0; 1668 rsp->ring_ptr = rsp->ring; 1669 } else { 1670 rsp->ring_ptr++; 1671 } 1672 1673 if (pkt->entry_status != 0) { 1674 qla2x00_error_entry(vha, rsp, pkt); 1675 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1676 wmb(); 1677 continue; 1678 } 1679 1680 switch (pkt->entry_type) { 1681 case STATUS_TYPE: 1682 qla2x00_status_entry(vha, rsp, pkt); 1683 break; 1684 case STATUS_TYPE_21: 1685 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 1686 for (cnt = 0; cnt < handle_cnt; cnt++) { 1687 qla2x00_process_completed_request(vha, rsp->req, 1688 ((sts21_entry_t *)pkt)->handle[cnt]); 1689 } 1690 break; 1691 case STATUS_TYPE_22: 1692 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 1693 for (cnt = 0; cnt < handle_cnt; cnt++) { 1694 qla2x00_process_completed_request(vha, rsp->req, 1695 ((sts22_entry_t *)pkt)->handle[cnt]); 1696 } 1697 break; 1698 case STATUS_CONT_TYPE: 1699 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1700 break; 1701 case MBX_IOCB_TYPE: 1702 qla2x00_mbx_iocb_entry(vha, rsp->req, 1703 (struct mbx_entry *)pkt); 1704 break; 1705 case CT_IOCB_TYPE: 1706 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 1707 break; 1708 default: 1709 /* Type Not Supported. */ 1710 ql_log(ql_log_warn, vha, 0x504a, 1711 "Received unknown response pkt type %x " 1712 "entry status=%x.\n", 1713 pkt->entry_type, pkt->entry_status); 1714 break; 1715 } 1716 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1717 wmb(); 1718 } 1719 1720 /* Adjust ring index */ 1721 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); 1722 } 1723 1724 static inline void 1725 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len, 1726 uint32_t sense_len, struct rsp_que *rsp, int res) 1727 { 1728 struct scsi_qla_host *vha = sp->fcport->vha; 1729 struct scsi_cmnd *cp = GET_CMD_SP(sp); 1730 uint32_t track_sense_len; 1731 1732 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 1733 sense_len = SCSI_SENSE_BUFFERSIZE; 1734 1735 SET_CMD_SENSE_LEN(sp, sense_len); 1736 SET_CMD_SENSE_PTR(sp, cp->sense_buffer); 1737 track_sense_len = sense_len; 1738 1739 if (sense_len > par_sense_len) 1740 sense_len = par_sense_len; 1741 1742 memcpy(cp->sense_buffer, sense_data, sense_len); 1743 1744 SET_CMD_SENSE_PTR(sp, cp->sense_buffer + sense_len); 1745 track_sense_len -= sense_len; 1746 SET_CMD_SENSE_LEN(sp, track_sense_len); 1747 1748 if (track_sense_len != 0) { 1749 rsp->status_srb = sp; 1750 cp->result = res; 1751 } 1752 1753 if (sense_len) { 1754 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c, 1755 "Check condition Sense data, nexus%ld:%d:%llu cmd=%p.\n", 1756 sp->fcport->vha->host_no, cp->device->id, cp->device->lun, 1757 cp); 1758 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b, 1759 cp->sense_buffer, sense_len); 1760 } 1761 } 1762 1763 struct scsi_dif_tuple { 1764 __be16 guard; /* Checksum */ 1765 __be16 app_tag; /* APPL identifier */ 1766 __be32 ref_tag; /* Target LBA or indirect LBA */ 1767 }; 1768 1769 /* 1770 * Checks the guard or meta-data for the type of error 1771 * detected by the HBA. In case of errors, we set the 1772 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1773 * to indicate to the kernel that the HBA detected error. 1774 */ 1775 static inline int 1776 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1777 { 1778 struct scsi_qla_host *vha = sp->fcport->vha; 1779 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1780 uint8_t *ap = &sts24->data[12]; 1781 uint8_t *ep = &sts24->data[20]; 1782 uint32_t e_ref_tag, a_ref_tag; 1783 uint16_t e_app_tag, a_app_tag; 1784 uint16_t e_guard, a_guard; 1785 1786 /* 1787 * swab32 of the "data" field in the beginning of qla2x00_status_entry() 1788 * would make guard field appear at offset 2 1789 */ 1790 a_guard = le16_to_cpu(*(uint16_t *)(ap + 2)); 1791 a_app_tag = le16_to_cpu(*(uint16_t *)(ap + 0)); 1792 a_ref_tag = le32_to_cpu(*(uint32_t *)(ap + 4)); 1793 e_guard = le16_to_cpu(*(uint16_t *)(ep + 2)); 1794 e_app_tag = le16_to_cpu(*(uint16_t *)(ep + 0)); 1795 e_ref_tag = le32_to_cpu(*(uint32_t *)(ep + 4)); 1796 1797 ql_dbg(ql_dbg_io, vha, 0x3023, 1798 "iocb(s) %p Returned STATUS.\n", sts24); 1799 1800 ql_dbg(ql_dbg_io, vha, 0x3024, 1801 "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1802 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1803 " tag=0x%x, act guard=0x%x, exp guard=0x%x.\n", 1804 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1805 a_app_tag, e_app_tag, a_guard, e_guard); 1806 1807 /* 1808 * Ignore sector if: 1809 * For type 3: ref & app tag is all 'f's 1810 * For type 0,1,2: app tag is all 'f's 1811 */ 1812 if ((a_app_tag == 0xffff) && 1813 ((scsi_get_prot_type(cmd) != SCSI_PROT_DIF_TYPE3) || 1814 (a_ref_tag == 0xffffffff))) { 1815 uint32_t blocks_done, resid; 1816 sector_t lba_s = scsi_get_lba(cmd); 1817 1818 /* 2TB boundary case covered automatically with this */ 1819 blocks_done = e_ref_tag - (uint32_t)lba_s + 1; 1820 1821 resid = scsi_bufflen(cmd) - (blocks_done * 1822 cmd->device->sector_size); 1823 1824 scsi_set_resid(cmd, resid); 1825 cmd->result = DID_OK << 16; 1826 1827 /* Update protection tag */ 1828 if (scsi_prot_sg_count(cmd)) { 1829 uint32_t i, j = 0, k = 0, num_ent; 1830 struct scatterlist *sg; 1831 struct sd_dif_tuple *spt; 1832 1833 /* Patch the corresponding protection tags */ 1834 scsi_for_each_prot_sg(cmd, sg, 1835 scsi_prot_sg_count(cmd), i) { 1836 num_ent = sg_dma_len(sg) / 8; 1837 if (k + num_ent < blocks_done) { 1838 k += num_ent; 1839 continue; 1840 } 1841 j = blocks_done - k - 1; 1842 k = blocks_done; 1843 break; 1844 } 1845 1846 if (k != blocks_done) { 1847 ql_log(ql_log_warn, vha, 0x302f, 1848 "unexpected tag values tag:lba=%x:%llx)\n", 1849 e_ref_tag, (unsigned long long)lba_s); 1850 return 1; 1851 } 1852 1853 spt = page_address(sg_page(sg)) + sg->offset; 1854 spt += j; 1855 1856 spt->app_tag = 0xffff; 1857 if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE3) 1858 spt->ref_tag = 0xffffffff; 1859 } 1860 1861 return 0; 1862 } 1863 1864 /* check guard */ 1865 if (e_guard != a_guard) { 1866 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1867 0x10, 0x1); 1868 set_driver_byte(cmd, DRIVER_SENSE); 1869 set_host_byte(cmd, DID_ABORT); 1870 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1871 return 1; 1872 } 1873 1874 /* check ref tag */ 1875 if (e_ref_tag != a_ref_tag) { 1876 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1877 0x10, 0x3); 1878 set_driver_byte(cmd, DRIVER_SENSE); 1879 set_host_byte(cmd, DID_ABORT); 1880 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1881 return 1; 1882 } 1883 1884 /* check appl tag */ 1885 if (e_app_tag != a_app_tag) { 1886 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1887 0x10, 0x2); 1888 set_driver_byte(cmd, DRIVER_SENSE); 1889 set_host_byte(cmd, DID_ABORT); 1890 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1891 return 1; 1892 } 1893 1894 return 1; 1895 } 1896 1897 static void 1898 qla25xx_process_bidir_status_iocb(scsi_qla_host_t *vha, void *pkt, 1899 struct req_que *req, uint32_t index) 1900 { 1901 struct qla_hw_data *ha = vha->hw; 1902 srb_t *sp; 1903 uint16_t comp_status; 1904 uint16_t scsi_status; 1905 uint16_t thread_id; 1906 uint32_t rval = EXT_STATUS_OK; 1907 struct fc_bsg_job *bsg_job = NULL; 1908 sts_entry_t *sts; 1909 struct sts_entry_24xx *sts24; 1910 sts = (sts_entry_t *) pkt; 1911 sts24 = (struct sts_entry_24xx *) pkt; 1912 1913 /* Validate handle. */ 1914 if (index >= req->num_outstanding_cmds) { 1915 ql_log(ql_log_warn, vha, 0x70af, 1916 "Invalid SCSI completion handle 0x%x.\n", index); 1917 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1918 return; 1919 } 1920 1921 sp = req->outstanding_cmds[index]; 1922 if (sp) { 1923 /* Free outstanding command slot. */ 1924 req->outstanding_cmds[index] = NULL; 1925 bsg_job = sp->u.bsg_job; 1926 } else { 1927 ql_log(ql_log_warn, vha, 0x70b0, 1928 "Req:%d: Invalid ISP SCSI completion handle(0x%x)\n", 1929 req->id, index); 1930 1931 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1932 return; 1933 } 1934 1935 if (IS_FWI2_CAPABLE(ha)) { 1936 comp_status = le16_to_cpu(sts24->comp_status); 1937 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1938 } else { 1939 comp_status = le16_to_cpu(sts->comp_status); 1940 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1941 } 1942 1943 thread_id = bsg_job->request->rqst_data.h_vendor.vendor_cmd[1]; 1944 switch (comp_status) { 1945 case CS_COMPLETE: 1946 if (scsi_status == 0) { 1947 bsg_job->reply->reply_payload_rcv_len = 1948 bsg_job->reply_payload.payload_len; 1949 vha->qla_stats.input_bytes += 1950 bsg_job->reply->reply_payload_rcv_len; 1951 vha->qla_stats.input_requests++; 1952 rval = EXT_STATUS_OK; 1953 } 1954 goto done; 1955 1956 case CS_DATA_OVERRUN: 1957 ql_dbg(ql_dbg_user, vha, 0x70b1, 1958 "Command completed with date overrun thread_id=%d\n", 1959 thread_id); 1960 rval = EXT_STATUS_DATA_OVERRUN; 1961 break; 1962 1963 case CS_DATA_UNDERRUN: 1964 ql_dbg(ql_dbg_user, vha, 0x70b2, 1965 "Command completed with date underrun thread_id=%d\n", 1966 thread_id); 1967 rval = EXT_STATUS_DATA_UNDERRUN; 1968 break; 1969 case CS_BIDIR_RD_OVERRUN: 1970 ql_dbg(ql_dbg_user, vha, 0x70b3, 1971 "Command completed with read data overrun thread_id=%d\n", 1972 thread_id); 1973 rval = EXT_STATUS_DATA_OVERRUN; 1974 break; 1975 1976 case CS_BIDIR_RD_WR_OVERRUN: 1977 ql_dbg(ql_dbg_user, vha, 0x70b4, 1978 "Command completed with read and write data overrun " 1979 "thread_id=%d\n", thread_id); 1980 rval = EXT_STATUS_DATA_OVERRUN; 1981 break; 1982 1983 case CS_BIDIR_RD_OVERRUN_WR_UNDERRUN: 1984 ql_dbg(ql_dbg_user, vha, 0x70b5, 1985 "Command completed with read data over and write data " 1986 "underrun thread_id=%d\n", thread_id); 1987 rval = EXT_STATUS_DATA_OVERRUN; 1988 break; 1989 1990 case CS_BIDIR_RD_UNDERRUN: 1991 ql_dbg(ql_dbg_user, vha, 0x70b6, 1992 "Command completed with read data data underrun " 1993 "thread_id=%d\n", thread_id); 1994 rval = EXT_STATUS_DATA_UNDERRUN; 1995 break; 1996 1997 case CS_BIDIR_RD_UNDERRUN_WR_OVERRUN: 1998 ql_dbg(ql_dbg_user, vha, 0x70b7, 1999 "Command completed with read data under and write data " 2000 "overrun thread_id=%d\n", thread_id); 2001 rval = EXT_STATUS_DATA_UNDERRUN; 2002 break; 2003 2004 case CS_BIDIR_RD_WR_UNDERRUN: 2005 ql_dbg(ql_dbg_user, vha, 0x70b8, 2006 "Command completed with read and write data underrun " 2007 "thread_id=%d\n", thread_id); 2008 rval = EXT_STATUS_DATA_UNDERRUN; 2009 break; 2010 2011 case CS_BIDIR_DMA: 2012 ql_dbg(ql_dbg_user, vha, 0x70b9, 2013 "Command completed with data DMA error thread_id=%d\n", 2014 thread_id); 2015 rval = EXT_STATUS_DMA_ERR; 2016 break; 2017 2018 case CS_TIMEOUT: 2019 ql_dbg(ql_dbg_user, vha, 0x70ba, 2020 "Command completed with timeout thread_id=%d\n", 2021 thread_id); 2022 rval = EXT_STATUS_TIMEOUT; 2023 break; 2024 default: 2025 ql_dbg(ql_dbg_user, vha, 0x70bb, 2026 "Command completed with completion status=0x%x " 2027 "thread_id=%d\n", comp_status, thread_id); 2028 rval = EXT_STATUS_ERR; 2029 break; 2030 } 2031 bsg_job->reply->reply_payload_rcv_len = 0; 2032 2033 done: 2034 /* Return the vendor specific reply to API */ 2035 bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = rval; 2036 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 2037 /* Always return DID_OK, bsg will send the vendor specific response 2038 * in this case only */ 2039 sp->done(vha, sp, (DID_OK << 6)); 2040 2041 } 2042 2043 /** 2044 * qla2x00_status_entry() - Process a Status IOCB entry. 2045 * @ha: SCSI driver HA context 2046 * @pkt: Entry pointer 2047 */ 2048 static void 2049 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 2050 { 2051 srb_t *sp; 2052 fc_port_t *fcport; 2053 struct scsi_cmnd *cp; 2054 sts_entry_t *sts; 2055 struct sts_entry_24xx *sts24; 2056 uint16_t comp_status; 2057 uint16_t scsi_status; 2058 uint16_t ox_id; 2059 uint8_t lscsi_status; 2060 int32_t resid; 2061 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 2062 fw_resid_len; 2063 uint8_t *rsp_info, *sense_data; 2064 struct qla_hw_data *ha = vha->hw; 2065 uint32_t handle; 2066 uint16_t que; 2067 struct req_que *req; 2068 int logit = 1; 2069 int res = 0; 2070 uint16_t state_flags = 0; 2071 uint16_t retry_delay = 0; 2072 2073 sts = (sts_entry_t *) pkt; 2074 sts24 = (struct sts_entry_24xx *) pkt; 2075 if (IS_FWI2_CAPABLE(ha)) { 2076 comp_status = le16_to_cpu(sts24->comp_status); 2077 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 2078 state_flags = le16_to_cpu(sts24->state_flags); 2079 } else { 2080 comp_status = le16_to_cpu(sts->comp_status); 2081 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 2082 } 2083 handle = (uint32_t) LSW(sts->handle); 2084 que = MSW(sts->handle); 2085 req = ha->req_q_map[que]; 2086 2087 /* Check for invalid queue pointer */ 2088 if (req == NULL || 2089 que >= find_first_zero_bit(ha->req_qid_map, ha->max_req_queues)) { 2090 ql_dbg(ql_dbg_io, vha, 0x3059, 2091 "Invalid status handle (0x%x): Bad req pointer. req=%p, " 2092 "que=%u.\n", sts->handle, req, que); 2093 return; 2094 } 2095 2096 /* Validate handle. */ 2097 if (handle < req->num_outstanding_cmds) { 2098 sp = req->outstanding_cmds[handle]; 2099 if (!sp) { 2100 ql_dbg(ql_dbg_io, vha, 0x3075, 2101 "%s(%ld): Already returned command for status handle (0x%x).\n", 2102 __func__, vha->host_no, sts->handle); 2103 return; 2104 } 2105 } else { 2106 ql_dbg(ql_dbg_io, vha, 0x3017, 2107 "Invalid status handle, out of range (0x%x).\n", 2108 sts->handle); 2109 2110 if (!test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) { 2111 if (IS_P3P_TYPE(ha)) 2112 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 2113 else 2114 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2115 qla2xxx_wake_dpc(vha); 2116 } 2117 return; 2118 } 2119 2120 if (unlikely((state_flags & BIT_1) && (sp->type == SRB_BIDI_CMD))) { 2121 qla25xx_process_bidir_status_iocb(vha, pkt, req, handle); 2122 return; 2123 } 2124 2125 /* Task Management completion. */ 2126 if (sp->type == SRB_TM_CMD) { 2127 qla24xx_tm_iocb_entry(vha, req, pkt); 2128 return; 2129 } 2130 2131 /* Fast path completion. */ 2132 if (comp_status == CS_COMPLETE && scsi_status == 0) { 2133 qla2x00_process_completed_request(vha, req, handle); 2134 2135 return; 2136 } 2137 2138 req->outstanding_cmds[handle] = NULL; 2139 cp = GET_CMD_SP(sp); 2140 if (cp == NULL) { 2141 ql_dbg(ql_dbg_io, vha, 0x3018, 2142 "Command already returned (0x%x/%p).\n", 2143 sts->handle, sp); 2144 2145 return; 2146 } 2147 2148 lscsi_status = scsi_status & STATUS_MASK; 2149 2150 fcport = sp->fcport; 2151 2152 ox_id = 0; 2153 sense_len = par_sense_len = rsp_info_len = resid_len = 2154 fw_resid_len = 0; 2155 if (IS_FWI2_CAPABLE(ha)) { 2156 if (scsi_status & SS_SENSE_LEN_VALID) 2157 sense_len = le32_to_cpu(sts24->sense_len); 2158 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2159 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 2160 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 2161 resid_len = le32_to_cpu(sts24->rsp_residual_count); 2162 if (comp_status == CS_DATA_UNDERRUN) 2163 fw_resid_len = le32_to_cpu(sts24->residual_len); 2164 rsp_info = sts24->data; 2165 sense_data = sts24->data; 2166 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 2167 ox_id = le16_to_cpu(sts24->ox_id); 2168 par_sense_len = sizeof(sts24->data); 2169 /* Valid values of the retry delay timer are 0x1-0xffef */ 2170 if (sts24->retry_delay > 0 && sts24->retry_delay < 0xfff1) 2171 retry_delay = sts24->retry_delay; 2172 } else { 2173 if (scsi_status & SS_SENSE_LEN_VALID) 2174 sense_len = le16_to_cpu(sts->req_sense_length); 2175 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 2176 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 2177 resid_len = le32_to_cpu(sts->residual_length); 2178 rsp_info = sts->rsp_info; 2179 sense_data = sts->req_sense_data; 2180 par_sense_len = sizeof(sts->req_sense_data); 2181 } 2182 2183 /* Check for any FCP transport errors. */ 2184 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 2185 /* Sense data lies beyond any FCP RESPONSE data. */ 2186 if (IS_FWI2_CAPABLE(ha)) { 2187 sense_data += rsp_info_len; 2188 par_sense_len -= rsp_info_len; 2189 } 2190 if (rsp_info_len > 3 && rsp_info[3]) { 2191 ql_dbg(ql_dbg_io, fcport->vha, 0x3019, 2192 "FCP I/O protocol failure (0x%x/0x%x).\n", 2193 rsp_info_len, rsp_info[3]); 2194 2195 res = DID_BUS_BUSY << 16; 2196 goto out; 2197 } 2198 } 2199 2200 /* Check for overrun. */ 2201 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 2202 scsi_status & SS_RESIDUAL_OVER) 2203 comp_status = CS_DATA_OVERRUN; 2204 2205 /* 2206 * Check retry_delay_timer value if we receive a busy or 2207 * queue full. 2208 */ 2209 if (lscsi_status == SAM_STAT_TASK_SET_FULL || 2210 lscsi_status == SAM_STAT_BUSY) 2211 qla2x00_set_retry_delay_timestamp(fcport, retry_delay); 2212 2213 /* 2214 * Based on Host and scsi status generate status code for Linux 2215 */ 2216 switch (comp_status) { 2217 case CS_COMPLETE: 2218 case CS_QUEUE_FULL: 2219 if (scsi_status == 0) { 2220 res = DID_OK << 16; 2221 break; 2222 } 2223 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 2224 resid = resid_len; 2225 scsi_set_resid(cp, resid); 2226 2227 if (!lscsi_status && 2228 ((unsigned)(scsi_bufflen(cp) - resid) < 2229 cp->underflow)) { 2230 ql_dbg(ql_dbg_io, fcport->vha, 0x301a, 2231 "Mid-layer underflow " 2232 "detected (0x%x of 0x%x bytes).\n", 2233 resid, scsi_bufflen(cp)); 2234 2235 res = DID_ERROR << 16; 2236 break; 2237 } 2238 } 2239 res = DID_OK << 16 | lscsi_status; 2240 2241 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2242 ql_dbg(ql_dbg_io, fcport->vha, 0x301b, 2243 "QUEUE FULL detected.\n"); 2244 break; 2245 } 2246 logit = 0; 2247 if (lscsi_status != SS_CHECK_CONDITION) 2248 break; 2249 2250 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2251 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2252 break; 2253 2254 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 2255 rsp, res); 2256 break; 2257 2258 case CS_DATA_UNDERRUN: 2259 /* Use F/W calculated residual length. */ 2260 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 2261 scsi_set_resid(cp, resid); 2262 if (scsi_status & SS_RESIDUAL_UNDER) { 2263 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 2264 ql_dbg(ql_dbg_io, fcport->vha, 0x301d, 2265 "Dropped frame(s) detected " 2266 "(0x%x of 0x%x bytes).\n", 2267 resid, scsi_bufflen(cp)); 2268 2269 res = DID_ERROR << 16 | lscsi_status; 2270 goto check_scsi_status; 2271 } 2272 2273 if (!lscsi_status && 2274 ((unsigned)(scsi_bufflen(cp) - resid) < 2275 cp->underflow)) { 2276 ql_dbg(ql_dbg_io, fcport->vha, 0x301e, 2277 "Mid-layer underflow " 2278 "detected (0x%x of 0x%x bytes).\n", 2279 resid, scsi_bufflen(cp)); 2280 2281 res = DID_ERROR << 16; 2282 break; 2283 } 2284 } else if (lscsi_status != SAM_STAT_TASK_SET_FULL && 2285 lscsi_status != SAM_STAT_BUSY) { 2286 /* 2287 * scsi status of task set and busy are considered to be 2288 * task not completed. 2289 */ 2290 2291 ql_dbg(ql_dbg_io, fcport->vha, 0x301f, 2292 "Dropped frame(s) detected (0x%x " 2293 "of 0x%x bytes).\n", resid, 2294 scsi_bufflen(cp)); 2295 2296 res = DID_ERROR << 16 | lscsi_status; 2297 goto check_scsi_status; 2298 } else { 2299 ql_dbg(ql_dbg_io, fcport->vha, 0x3030, 2300 "scsi_status: 0x%x, lscsi_status: 0x%x\n", 2301 scsi_status, lscsi_status); 2302 } 2303 2304 res = DID_OK << 16 | lscsi_status; 2305 logit = 0; 2306 2307 check_scsi_status: 2308 /* 2309 * Check to see if SCSI Status is non zero. If so report SCSI 2310 * Status. 2311 */ 2312 if (lscsi_status != 0) { 2313 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 2314 ql_dbg(ql_dbg_io, fcport->vha, 0x3020, 2315 "QUEUE FULL detected.\n"); 2316 logit = 1; 2317 break; 2318 } 2319 if (lscsi_status != SS_CHECK_CONDITION) 2320 break; 2321 2322 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 2323 if (!(scsi_status & SS_SENSE_LEN_VALID)) 2324 break; 2325 2326 qla2x00_handle_sense(sp, sense_data, par_sense_len, 2327 sense_len, rsp, res); 2328 } 2329 break; 2330 2331 case CS_PORT_LOGGED_OUT: 2332 case CS_PORT_CONFIG_CHG: 2333 case CS_PORT_BUSY: 2334 case CS_INCOMPLETE: 2335 case CS_PORT_UNAVAILABLE: 2336 case CS_TIMEOUT: 2337 case CS_RESET: 2338 2339 /* 2340 * We are going to have the fc class block the rport 2341 * while we try to recover so instruct the mid layer 2342 * to requeue until the class decides how to handle this. 2343 */ 2344 res = DID_TRANSPORT_DISRUPTED << 16; 2345 2346 if (comp_status == CS_TIMEOUT) { 2347 if (IS_FWI2_CAPABLE(ha)) 2348 break; 2349 else if ((le16_to_cpu(sts->status_flags) & 2350 SF_LOGOUT_SENT) == 0) 2351 break; 2352 } 2353 2354 ql_dbg(ql_dbg_io, fcport->vha, 0x3021, 2355 "Port to be marked lost on fcport=%02x%02x%02x, current " 2356 "port state= %s.\n", fcport->d_id.b.domain, 2357 fcport->d_id.b.area, fcport->d_id.b.al_pa, 2358 port_state_str[atomic_read(&fcport->state)]); 2359 2360 if (atomic_read(&fcport->state) == FCS_ONLINE) 2361 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 2362 break; 2363 2364 case CS_ABORTED: 2365 res = DID_RESET << 16; 2366 break; 2367 2368 case CS_DIF_ERROR: 2369 logit = qla2x00_handle_dif_error(sp, sts24); 2370 res = cp->result; 2371 break; 2372 2373 case CS_TRANSPORT: 2374 res = DID_ERROR << 16; 2375 2376 if (!IS_PI_SPLIT_DET_CAPABLE(ha)) 2377 break; 2378 2379 if (state_flags & BIT_4) 2380 scmd_printk(KERN_WARNING, cp, 2381 "Unsupported device '%s' found.\n", 2382 cp->device->vendor); 2383 break; 2384 2385 default: 2386 res = DID_ERROR << 16; 2387 break; 2388 } 2389 2390 out: 2391 if (logit) 2392 ql_dbg(ql_dbg_io, fcport->vha, 0x3022, 2393 "FCP command status: 0x%x-0x%x (0x%x) nexus=%ld:%d:%llu " 2394 "portid=%02x%02x%02x oxid=0x%x cdb=%10phN len=0x%x " 2395 "rsp_info=0x%x resid=0x%x fw_resid=0x%x sp=%p cp=%p.\n", 2396 comp_status, scsi_status, res, vha->host_no, 2397 cp->device->id, cp->device->lun, fcport->d_id.b.domain, 2398 fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id, 2399 cp->cmnd, scsi_bufflen(cp), rsp_info_len, 2400 resid_len, fw_resid_len, sp, cp); 2401 2402 if (rsp->status_srb == NULL) 2403 sp->done(ha, sp, res); 2404 } 2405 2406 /** 2407 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 2408 * @ha: SCSI driver HA context 2409 * @pkt: Entry pointer 2410 * 2411 * Extended sense data. 2412 */ 2413 static void 2414 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 2415 { 2416 uint8_t sense_sz = 0; 2417 struct qla_hw_data *ha = rsp->hw; 2418 struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev); 2419 srb_t *sp = rsp->status_srb; 2420 struct scsi_cmnd *cp; 2421 uint32_t sense_len; 2422 uint8_t *sense_ptr; 2423 2424 if (!sp || !GET_CMD_SENSE_LEN(sp)) 2425 return; 2426 2427 sense_len = GET_CMD_SENSE_LEN(sp); 2428 sense_ptr = GET_CMD_SENSE_PTR(sp); 2429 2430 cp = GET_CMD_SP(sp); 2431 if (cp == NULL) { 2432 ql_log(ql_log_warn, vha, 0x3025, 2433 "cmd is NULL: already returned to OS (sp=%p).\n", sp); 2434 2435 rsp->status_srb = NULL; 2436 return; 2437 } 2438 2439 if (sense_len > sizeof(pkt->data)) 2440 sense_sz = sizeof(pkt->data); 2441 else 2442 sense_sz = sense_len; 2443 2444 /* Move sense data. */ 2445 if (IS_FWI2_CAPABLE(ha)) 2446 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 2447 memcpy(sense_ptr, pkt->data, sense_sz); 2448 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302c, 2449 sense_ptr, sense_sz); 2450 2451 sense_len -= sense_sz; 2452 sense_ptr += sense_sz; 2453 2454 SET_CMD_SENSE_PTR(sp, sense_ptr); 2455 SET_CMD_SENSE_LEN(sp, sense_len); 2456 2457 /* Place command on done queue. */ 2458 if (sense_len == 0) { 2459 rsp->status_srb = NULL; 2460 sp->done(ha, sp, cp->result); 2461 } 2462 } 2463 2464 /** 2465 * qla2x00_error_entry() - Process an error entry. 2466 * @ha: SCSI driver HA context 2467 * @pkt: Entry pointer 2468 */ 2469 static void 2470 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 2471 { 2472 srb_t *sp; 2473 struct qla_hw_data *ha = vha->hw; 2474 const char func[] = "ERROR-IOCB"; 2475 uint16_t que = MSW(pkt->handle); 2476 struct req_que *req = NULL; 2477 int res = DID_ERROR << 16; 2478 2479 ql_dbg(ql_dbg_async, vha, 0x502a, 2480 "type of error status in response: 0x%x\n", pkt->entry_status); 2481 2482 if (que >= ha->max_req_queues || !ha->req_q_map[que]) 2483 goto fatal; 2484 2485 req = ha->req_q_map[que]; 2486 2487 if (pkt->entry_status & RF_BUSY) 2488 res = DID_BUS_BUSY << 16; 2489 2490 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2491 if (sp) { 2492 sp->done(ha, sp, res); 2493 return; 2494 } 2495 fatal: 2496 ql_log(ql_log_warn, vha, 0x5030, 2497 "Error entry - invalid handle/queue (%04x).\n", que); 2498 } 2499 2500 /** 2501 * qla24xx_mbx_completion() - Process mailbox command completions. 2502 * @ha: SCSI driver HA context 2503 * @mb0: Mailbox0 register 2504 */ 2505 static void 2506 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 2507 { 2508 uint16_t cnt; 2509 uint32_t mboxes; 2510 uint16_t __iomem *wptr; 2511 struct qla_hw_data *ha = vha->hw; 2512 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2513 2514 /* Read all mbox registers? */ 2515 mboxes = (1 << ha->mbx_count) - 1; 2516 if (!ha->mcp) 2517 ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERROR.\n"); 2518 else 2519 mboxes = ha->mcp->in_mb; 2520 2521 /* Load return mailbox registers. */ 2522 ha->flags.mbox_int = 1; 2523 ha->mailbox_out[0] = mb0; 2524 mboxes >>= 1; 2525 wptr = (uint16_t __iomem *)®->mailbox1; 2526 2527 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 2528 if (mboxes & BIT_0) 2529 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 2530 2531 mboxes >>= 1; 2532 wptr++; 2533 } 2534 } 2535 2536 static void 2537 qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 2538 struct abort_entry_24xx *pkt) 2539 { 2540 const char func[] = "ABT_IOCB"; 2541 srb_t *sp; 2542 struct srb_iocb *abt; 2543 2544 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 2545 if (!sp) 2546 return; 2547 2548 abt = &sp->u.iocb_cmd; 2549 abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle); 2550 sp->done(vha, sp, 0); 2551 } 2552 2553 /** 2554 * qla24xx_process_response_queue() - Process response queue entries. 2555 * @ha: SCSI driver HA context 2556 */ 2557 void qla24xx_process_response_queue(struct scsi_qla_host *vha, 2558 struct rsp_que *rsp) 2559 { 2560 struct sts_entry_24xx *pkt; 2561 struct qla_hw_data *ha = vha->hw; 2562 2563 if (!vha->flags.online) 2564 return; 2565 2566 if (rsp->msix && rsp->msix->cpuid != smp_processor_id()) { 2567 /* if kernel does not notify qla of IRQ's CPU change, 2568 * then set it here. 2569 */ 2570 rsp->msix->cpuid = smp_processor_id(); 2571 ha->tgt.rspq_vector_cpuid = rsp->msix->cpuid; 2572 } 2573 2574 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 2575 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 2576 2577 rsp->ring_index++; 2578 if (rsp->ring_index == rsp->length) { 2579 rsp->ring_index = 0; 2580 rsp->ring_ptr = rsp->ring; 2581 } else { 2582 rsp->ring_ptr++; 2583 } 2584 2585 if (pkt->entry_status != 0) { 2586 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 2587 2588 if (qlt_24xx_process_response_error(vha, pkt)) 2589 goto process_err; 2590 2591 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2592 wmb(); 2593 continue; 2594 } 2595 process_err: 2596 2597 switch (pkt->entry_type) { 2598 case STATUS_TYPE: 2599 qla2x00_status_entry(vha, rsp, pkt); 2600 break; 2601 case STATUS_CONT_TYPE: 2602 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 2603 break; 2604 case VP_RPT_ID_IOCB_TYPE: 2605 qla24xx_report_id_acquisition(vha, 2606 (struct vp_rpt_id_entry_24xx *)pkt); 2607 break; 2608 case LOGINOUT_PORT_IOCB_TYPE: 2609 qla24xx_logio_entry(vha, rsp->req, 2610 (struct logio_entry_24xx *)pkt); 2611 break; 2612 case CT_IOCB_TYPE: 2613 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2614 break; 2615 case ELS_IOCB_TYPE: 2616 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2617 break; 2618 case ABTS_RECV_24XX: 2619 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 2620 /* ensure that the ATIO queue is empty */ 2621 qlt_handle_abts_recv(vha, (response_t *)pkt); 2622 break; 2623 } else { 2624 /* drop through */ 2625 qlt_24xx_process_atio_queue(vha, 1); 2626 } 2627 case ABTS_RESP_24XX: 2628 case CTIO_TYPE7: 2629 case NOTIFY_ACK_TYPE: 2630 case CTIO_CRC2: 2631 qlt_response_pkt_all_vps(vha, (response_t *)pkt); 2632 break; 2633 case MARKER_TYPE: 2634 /* Do nothing in this case, this check is to prevent it 2635 * from falling into default case 2636 */ 2637 break; 2638 case ABORT_IOCB_TYPE: 2639 qla24xx_abort_iocb_entry(vha, rsp->req, 2640 (struct abort_entry_24xx *)pkt); 2641 break; 2642 default: 2643 /* Type Not Supported. */ 2644 ql_dbg(ql_dbg_async, vha, 0x5042, 2645 "Received unknown response pkt type %x " 2646 "entry status=%x.\n", 2647 pkt->entry_type, pkt->entry_status); 2648 break; 2649 } 2650 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2651 wmb(); 2652 } 2653 2654 /* Adjust ring index */ 2655 if (IS_P3P_TYPE(ha)) { 2656 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2657 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2658 } else 2659 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2660 } 2661 2662 static void 2663 qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2664 { 2665 int rval; 2666 uint32_t cnt; 2667 struct qla_hw_data *ha = vha->hw; 2668 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2669 2670 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) && 2671 !IS_QLA27XX(ha)) 2672 return; 2673 2674 rval = QLA_SUCCESS; 2675 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2676 RD_REG_DWORD(®->iobase_addr); 2677 WRT_REG_DWORD(®->iobase_window, 0x0001); 2678 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2679 rval == QLA_SUCCESS; cnt--) { 2680 if (cnt) { 2681 WRT_REG_DWORD(®->iobase_window, 0x0001); 2682 udelay(10); 2683 } else 2684 rval = QLA_FUNCTION_TIMEOUT; 2685 } 2686 if (rval == QLA_SUCCESS) 2687 goto next_test; 2688 2689 rval = QLA_SUCCESS; 2690 WRT_REG_DWORD(®->iobase_window, 0x0003); 2691 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2692 rval == QLA_SUCCESS; cnt--) { 2693 if (cnt) { 2694 WRT_REG_DWORD(®->iobase_window, 0x0003); 2695 udelay(10); 2696 } else 2697 rval = QLA_FUNCTION_TIMEOUT; 2698 } 2699 if (rval != QLA_SUCCESS) 2700 goto done; 2701 2702 next_test: 2703 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2704 ql_log(ql_log_info, vha, 0x504c, 2705 "Additional code -- 0x55AA.\n"); 2706 2707 done: 2708 WRT_REG_DWORD(®->iobase_window, 0x0000); 2709 RD_REG_DWORD(®->iobase_window); 2710 } 2711 2712 /** 2713 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP24xx. 2714 * @irq: 2715 * @dev_id: SCSI driver HA context 2716 * 2717 * Called by system whenever the host adapter generates an interrupt. 2718 * 2719 * Returns handled flag. 2720 */ 2721 irqreturn_t 2722 qla24xx_intr_handler(int irq, void *dev_id) 2723 { 2724 scsi_qla_host_t *vha; 2725 struct qla_hw_data *ha; 2726 struct device_reg_24xx __iomem *reg; 2727 int status; 2728 unsigned long iter; 2729 uint32_t stat; 2730 uint32_t hccr; 2731 uint16_t mb[8]; 2732 struct rsp_que *rsp; 2733 unsigned long flags; 2734 2735 rsp = (struct rsp_que *) dev_id; 2736 if (!rsp) { 2737 ql_log(ql_log_info, NULL, 0x5059, 2738 "%s: NULL response queue pointer.\n", __func__); 2739 return IRQ_NONE; 2740 } 2741 2742 ha = rsp->hw; 2743 reg = &ha->iobase->isp24; 2744 status = 0; 2745 2746 if (unlikely(pci_channel_offline(ha->pdev))) 2747 return IRQ_HANDLED; 2748 2749 spin_lock_irqsave(&ha->hardware_lock, flags); 2750 vha = pci_get_drvdata(ha->pdev); 2751 for (iter = 50; iter--; ) { 2752 stat = RD_REG_DWORD(®->host_status); 2753 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2754 break; 2755 if (stat & HSRX_RISC_PAUSED) { 2756 if (unlikely(pci_channel_offline(ha->pdev))) 2757 break; 2758 2759 hccr = RD_REG_DWORD(®->hccr); 2760 2761 ql_log(ql_log_warn, vha, 0x504b, 2762 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2763 hccr); 2764 2765 qla2xxx_check_risc_status(vha); 2766 2767 ha->isp_ops->fw_dump(vha, 1); 2768 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2769 break; 2770 } else if ((stat & HSRX_RISC_INT) == 0) 2771 break; 2772 2773 switch (stat & 0xff) { 2774 case INTR_ROM_MB_SUCCESS: 2775 case INTR_ROM_MB_FAILED: 2776 case INTR_MB_SUCCESS: 2777 case INTR_MB_FAILED: 2778 qla24xx_mbx_completion(vha, MSW(stat)); 2779 status |= MBX_INTERRUPT; 2780 2781 break; 2782 case INTR_ASYNC_EVENT: 2783 mb[0] = MSW(stat); 2784 mb[1] = RD_REG_WORD(®->mailbox1); 2785 mb[2] = RD_REG_WORD(®->mailbox2); 2786 mb[3] = RD_REG_WORD(®->mailbox3); 2787 qla2x00_async_event(vha, rsp, mb); 2788 break; 2789 case INTR_RSP_QUE_UPDATE: 2790 case INTR_RSP_QUE_UPDATE_83XX: 2791 qla24xx_process_response_queue(vha, rsp); 2792 break; 2793 case INTR_ATIO_QUE_UPDATE:{ 2794 unsigned long flags2; 2795 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2796 qlt_24xx_process_atio_queue(vha, 1); 2797 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2798 break; 2799 } 2800 case INTR_ATIO_RSP_QUE_UPDATE: { 2801 unsigned long flags2; 2802 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2803 qlt_24xx_process_atio_queue(vha, 1); 2804 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2805 2806 qla24xx_process_response_queue(vha, rsp); 2807 break; 2808 } 2809 default: 2810 ql_dbg(ql_dbg_async, vha, 0x504f, 2811 "Unrecognized interrupt type (%d).\n", stat * 0xff); 2812 break; 2813 } 2814 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2815 RD_REG_DWORD_RELAXED(®->hccr); 2816 if (unlikely(IS_QLA83XX(ha) && (ha->pdev->revision == 1))) 2817 ndelay(3500); 2818 } 2819 qla2x00_handle_mbx_completion(ha, status); 2820 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2821 2822 return IRQ_HANDLED; 2823 } 2824 2825 static irqreturn_t 2826 qla24xx_msix_rsp_q(int irq, void *dev_id) 2827 { 2828 struct qla_hw_data *ha; 2829 struct rsp_que *rsp; 2830 struct device_reg_24xx __iomem *reg; 2831 struct scsi_qla_host *vha; 2832 unsigned long flags; 2833 uint32_t stat = 0; 2834 2835 rsp = (struct rsp_que *) dev_id; 2836 if (!rsp) { 2837 ql_log(ql_log_info, NULL, 0x505a, 2838 "%s: NULL response queue pointer.\n", __func__); 2839 return IRQ_NONE; 2840 } 2841 ha = rsp->hw; 2842 reg = &ha->iobase->isp24; 2843 2844 spin_lock_irqsave(&ha->hardware_lock, flags); 2845 2846 vha = pci_get_drvdata(ha->pdev); 2847 /* 2848 * Use host_status register to check to PCI disconnection before we 2849 * we process the response queue. 2850 */ 2851 stat = RD_REG_DWORD(®->host_status); 2852 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2853 goto out; 2854 qla24xx_process_response_queue(vha, rsp); 2855 if (!ha->flags.disable_msix_handshake) { 2856 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2857 RD_REG_DWORD_RELAXED(®->hccr); 2858 } 2859 out: 2860 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2861 2862 return IRQ_HANDLED; 2863 } 2864 2865 static irqreturn_t 2866 qla25xx_msix_rsp_q(int irq, void *dev_id) 2867 { 2868 struct qla_hw_data *ha; 2869 scsi_qla_host_t *vha; 2870 struct rsp_que *rsp; 2871 struct device_reg_24xx __iomem *reg; 2872 unsigned long flags; 2873 uint32_t hccr = 0; 2874 2875 rsp = (struct rsp_que *) dev_id; 2876 if (!rsp) { 2877 ql_log(ql_log_info, NULL, 0x505b, 2878 "%s: NULL response queue pointer.\n", __func__); 2879 return IRQ_NONE; 2880 } 2881 ha = rsp->hw; 2882 vha = pci_get_drvdata(ha->pdev); 2883 2884 /* Clear the interrupt, if enabled, for this response queue */ 2885 if (!ha->flags.disable_msix_handshake) { 2886 reg = &ha->iobase->isp24; 2887 spin_lock_irqsave(&ha->hardware_lock, flags); 2888 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2889 hccr = RD_REG_DWORD_RELAXED(®->hccr); 2890 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2891 } 2892 if (qla2x00_check_reg32_for_disconnect(vha, hccr)) 2893 goto out; 2894 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work); 2895 2896 out: 2897 return IRQ_HANDLED; 2898 } 2899 2900 static irqreturn_t 2901 qla24xx_msix_default(int irq, void *dev_id) 2902 { 2903 scsi_qla_host_t *vha; 2904 struct qla_hw_data *ha; 2905 struct rsp_que *rsp; 2906 struct device_reg_24xx __iomem *reg; 2907 int status; 2908 uint32_t stat; 2909 uint32_t hccr; 2910 uint16_t mb[8]; 2911 unsigned long flags; 2912 2913 rsp = (struct rsp_que *) dev_id; 2914 if (!rsp) { 2915 ql_log(ql_log_info, NULL, 0x505c, 2916 "%s: NULL response queue pointer.\n", __func__); 2917 return IRQ_NONE; 2918 } 2919 ha = rsp->hw; 2920 reg = &ha->iobase->isp24; 2921 status = 0; 2922 2923 spin_lock_irqsave(&ha->hardware_lock, flags); 2924 vha = pci_get_drvdata(ha->pdev); 2925 do { 2926 stat = RD_REG_DWORD(®->host_status); 2927 if (qla2x00_check_reg32_for_disconnect(vha, stat)) 2928 break; 2929 if (stat & HSRX_RISC_PAUSED) { 2930 if (unlikely(pci_channel_offline(ha->pdev))) 2931 break; 2932 2933 hccr = RD_REG_DWORD(®->hccr); 2934 2935 ql_log(ql_log_info, vha, 0x5050, 2936 "RISC paused -- HCCR=%x, Dumping firmware.\n", 2937 hccr); 2938 2939 qla2xxx_check_risc_status(vha); 2940 2941 ha->isp_ops->fw_dump(vha, 1); 2942 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2943 break; 2944 } else if ((stat & HSRX_RISC_INT) == 0) 2945 break; 2946 2947 switch (stat & 0xff) { 2948 case INTR_ROM_MB_SUCCESS: 2949 case INTR_ROM_MB_FAILED: 2950 case INTR_MB_SUCCESS: 2951 case INTR_MB_FAILED: 2952 qla24xx_mbx_completion(vha, MSW(stat)); 2953 status |= MBX_INTERRUPT; 2954 2955 break; 2956 case INTR_ASYNC_EVENT: 2957 mb[0] = MSW(stat); 2958 mb[1] = RD_REG_WORD(®->mailbox1); 2959 mb[2] = RD_REG_WORD(®->mailbox2); 2960 mb[3] = RD_REG_WORD(®->mailbox3); 2961 qla2x00_async_event(vha, rsp, mb); 2962 break; 2963 case INTR_RSP_QUE_UPDATE: 2964 case INTR_RSP_QUE_UPDATE_83XX: 2965 qla24xx_process_response_queue(vha, rsp); 2966 break; 2967 case INTR_ATIO_QUE_UPDATE:{ 2968 unsigned long flags2; 2969 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2970 qlt_24xx_process_atio_queue(vha, 1); 2971 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2972 break; 2973 } 2974 case INTR_ATIO_RSP_QUE_UPDATE: { 2975 unsigned long flags2; 2976 spin_lock_irqsave(&ha->tgt.atio_lock, flags2); 2977 qlt_24xx_process_atio_queue(vha, 1); 2978 spin_unlock_irqrestore(&ha->tgt.atio_lock, flags2); 2979 2980 qla24xx_process_response_queue(vha, rsp); 2981 break; 2982 } 2983 default: 2984 ql_dbg(ql_dbg_async, vha, 0x5051, 2985 "Unrecognized interrupt type (%d).\n", stat & 0xff); 2986 break; 2987 } 2988 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2989 } while (0); 2990 qla2x00_handle_mbx_completion(ha, status); 2991 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2992 2993 return IRQ_HANDLED; 2994 } 2995 2996 /* Interrupt handling helpers. */ 2997 2998 struct qla_init_msix_entry { 2999 const char *name; 3000 irq_handler_t handler; 3001 }; 3002 3003 static struct qla_init_msix_entry msix_entries[3] = { 3004 { "qla2xxx (default)", qla24xx_msix_default }, 3005 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 3006 { "qla2xxx (multiq)", qla25xx_msix_rsp_q }, 3007 }; 3008 3009 static struct qla_init_msix_entry qla82xx_msix_entries[2] = { 3010 { "qla2xxx (default)", qla82xx_msix_default }, 3011 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 3012 }; 3013 3014 static struct qla_init_msix_entry qla83xx_msix_entries[3] = { 3015 { "qla2xxx (default)", qla24xx_msix_default }, 3016 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 3017 { "qla2xxx (atio_q)", qla83xx_msix_atio_q }, 3018 }; 3019 3020 static void 3021 qla24xx_disable_msix(struct qla_hw_data *ha) 3022 { 3023 int i; 3024 struct qla_msix_entry *qentry; 3025 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3026 3027 for (i = 0; i < ha->msix_count; i++) { 3028 qentry = &ha->msix_entries[i]; 3029 if (qentry->have_irq) { 3030 /* un-register irq cpu affinity notification */ 3031 irq_set_affinity_notifier(qentry->vector, NULL); 3032 free_irq(qentry->vector, qentry->rsp); 3033 } 3034 } 3035 pci_disable_msix(ha->pdev); 3036 kfree(ha->msix_entries); 3037 ha->msix_entries = NULL; 3038 ha->flags.msix_enabled = 0; 3039 ql_dbg(ql_dbg_init, vha, 0x0042, 3040 "Disabled the MSI.\n"); 3041 } 3042 3043 static int 3044 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 3045 { 3046 #define MIN_MSIX_COUNT 2 3047 #define ATIO_VECTOR 2 3048 int i, ret; 3049 struct msix_entry *entries; 3050 struct qla_msix_entry *qentry; 3051 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3052 3053 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, 3054 GFP_KERNEL); 3055 if (!entries) { 3056 ql_log(ql_log_warn, vha, 0x00bc, 3057 "Failed to allocate memory for msix_entry.\n"); 3058 return -ENOMEM; 3059 } 3060 3061 for (i = 0; i < ha->msix_count; i++) 3062 entries[i].entry = i; 3063 3064 ret = pci_enable_msix_range(ha->pdev, 3065 entries, MIN_MSIX_COUNT, ha->msix_count); 3066 if (ret < 0) { 3067 ql_log(ql_log_fatal, vha, 0x00c7, 3068 "MSI-X: Failed to enable support, " 3069 "giving up -- %d/%d.\n", 3070 ha->msix_count, ret); 3071 goto msix_out; 3072 } else if (ret < ha->msix_count) { 3073 ql_log(ql_log_warn, vha, 0x00c6, 3074 "MSI-X: Failed to enable support " 3075 "-- %d/%d\n Retry with %d vectors.\n", 3076 ha->msix_count, ret, ret); 3077 ha->msix_count = ret; 3078 ha->max_rsp_queues = ha->msix_count - 1; 3079 } 3080 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 3081 ha->msix_count, GFP_KERNEL); 3082 if (!ha->msix_entries) { 3083 ql_log(ql_log_fatal, vha, 0x00c8, 3084 "Failed to allocate memory for ha->msix_entries.\n"); 3085 ret = -ENOMEM; 3086 goto msix_out; 3087 } 3088 ha->flags.msix_enabled = 1; 3089 3090 for (i = 0; i < ha->msix_count; i++) { 3091 qentry = &ha->msix_entries[i]; 3092 qentry->vector = entries[i].vector; 3093 qentry->entry = entries[i].entry; 3094 qentry->have_irq = 0; 3095 qentry->rsp = NULL; 3096 qentry->irq_notify.notify = qla_irq_affinity_notify; 3097 qentry->irq_notify.release = qla_irq_affinity_release; 3098 qentry->cpuid = -1; 3099 } 3100 3101 /* Enable MSI-X vectors for the base queue */ 3102 for (i = 0; i < 2; i++) { 3103 qentry = &ha->msix_entries[i]; 3104 qentry->rsp = rsp; 3105 rsp->msix = qentry; 3106 if (IS_P3P_TYPE(ha)) 3107 ret = request_irq(qentry->vector, 3108 qla82xx_msix_entries[i].handler, 3109 0, qla82xx_msix_entries[i].name, rsp); 3110 else 3111 ret = request_irq(qentry->vector, 3112 msix_entries[i].handler, 3113 0, msix_entries[i].name, rsp); 3114 if (ret) 3115 goto msix_register_fail; 3116 qentry->have_irq = 1; 3117 3118 /* Register for CPU affinity notification. */ 3119 irq_set_affinity_notifier(qentry->vector, &qentry->irq_notify); 3120 3121 /* Schedule work (ie. trigger a notification) to read cpu 3122 * mask for this specific irq. 3123 * kref_get is required because 3124 * irq_affinity_notify() will do 3125 * kref_put(). 3126 */ 3127 kref_get(&qentry->irq_notify.kref); 3128 schedule_work(&qentry->irq_notify.work); 3129 } 3130 3131 /* 3132 * If target mode is enable, also request the vector for the ATIO 3133 * queue. 3134 */ 3135 if (QLA_TGT_MODE_ENABLED() && IS_ATIO_MSIX_CAPABLE(ha)) { 3136 qentry = &ha->msix_entries[ATIO_VECTOR]; 3137 qentry->rsp = rsp; 3138 rsp->msix = qentry; 3139 ret = request_irq(qentry->vector, 3140 qla83xx_msix_entries[ATIO_VECTOR].handler, 3141 0, qla83xx_msix_entries[ATIO_VECTOR].name, rsp); 3142 qentry->have_irq = 1; 3143 } 3144 3145 msix_register_fail: 3146 if (ret) { 3147 ql_log(ql_log_fatal, vha, 0x00cb, 3148 "MSI-X: unable to register handler -- %x/%d.\n", 3149 qentry->vector, ret); 3150 qla24xx_disable_msix(ha); 3151 ha->mqenable = 0; 3152 goto msix_out; 3153 } 3154 3155 /* Enable MSI-X vector for response queue update for queue 0 */ 3156 if (IS_QLA83XX(ha) || IS_QLA27XX(ha)) { 3157 if (ha->msixbase && ha->mqiobase && 3158 (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 3159 ha->mqenable = 1; 3160 } else 3161 if (ha->mqiobase 3162 && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 3163 ha->mqenable = 1; 3164 ql_dbg(ql_dbg_multiq, vha, 0xc005, 3165 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3166 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3167 ql_dbg(ql_dbg_init, vha, 0x0055, 3168 "mqiobase=%p, max_rsp_queues=%d, max_req_queues=%d.\n", 3169 ha->mqiobase, ha->max_rsp_queues, ha->max_req_queues); 3170 3171 msix_out: 3172 kfree(entries); 3173 return ret; 3174 } 3175 3176 int 3177 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 3178 { 3179 int ret = QLA_FUNCTION_FAILED; 3180 device_reg_t *reg = ha->iobase; 3181 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3182 3183 /* If possible, enable MSI-X. */ 3184 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3185 !IS_CNA_CAPABLE(ha) && !IS_QLA2031(ha) && !IS_QLAFX00(ha) && 3186 !IS_QLA27XX(ha)) 3187 goto skip_msi; 3188 3189 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 3190 (ha->pdev->subsystem_device == 0x7040 || 3191 ha->pdev->subsystem_device == 0x7041 || 3192 ha->pdev->subsystem_device == 0x1705)) { 3193 ql_log(ql_log_warn, vha, 0x0034, 3194 "MSI-X: Unsupported ISP 2432 SSVID/SSDID (0x%X,0x%X).\n", 3195 ha->pdev->subsystem_vendor, 3196 ha->pdev->subsystem_device); 3197 goto skip_msi; 3198 } 3199 3200 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX)) { 3201 ql_log(ql_log_warn, vha, 0x0035, 3202 "MSI-X; Unsupported ISP2432 (0x%X, 0x%X).\n", 3203 ha->pdev->revision, QLA_MSIX_CHIP_REV_24XX); 3204 goto skip_msix; 3205 } 3206 3207 ret = qla24xx_enable_msix(ha, rsp); 3208 if (!ret) { 3209 ql_dbg(ql_dbg_init, vha, 0x0036, 3210 "MSI-X: Enabled (0x%X, 0x%X).\n", 3211 ha->chip_revision, ha->fw_attributes); 3212 goto clear_risc_ints; 3213 } 3214 3215 skip_msix: 3216 3217 ql_log(ql_log_info, vha, 0x0037, 3218 "Falling back-to MSI mode -%d.\n", ret); 3219 3220 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 3221 !IS_QLA8001(ha) && !IS_P3P_TYPE(ha) && !IS_QLAFX00(ha) && 3222 !IS_QLA27XX(ha)) 3223 goto skip_msi; 3224 3225 ret = pci_enable_msi(ha->pdev); 3226 if (!ret) { 3227 ql_dbg(ql_dbg_init, vha, 0x0038, 3228 "MSI: Enabled.\n"); 3229 ha->flags.msi_enabled = 1; 3230 } else 3231 ql_log(ql_log_warn, vha, 0x0039, 3232 "Falling back-to INTa mode -- %d.\n", ret); 3233 skip_msi: 3234 3235 /* Skip INTx on ISP82xx. */ 3236 if (!ha->flags.msi_enabled && IS_QLA82XX(ha)) 3237 return QLA_FUNCTION_FAILED; 3238 3239 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 3240 ha->flags.msi_enabled ? 0 : IRQF_SHARED, 3241 QLA2XXX_DRIVER_NAME, rsp); 3242 if (ret) { 3243 ql_log(ql_log_warn, vha, 0x003a, 3244 "Failed to reserve interrupt %d already in use.\n", 3245 ha->pdev->irq); 3246 goto fail; 3247 } else if (!ha->flags.msi_enabled) { 3248 ql_dbg(ql_dbg_init, vha, 0x0125, 3249 "INTa mode: Enabled.\n"); 3250 ha->flags.mr_intr_valid = 1; 3251 } 3252 3253 clear_risc_ints: 3254 if (IS_FWI2_CAPABLE(ha) || IS_QLAFX00(ha)) 3255 goto fail; 3256 3257 spin_lock_irq(&ha->hardware_lock); 3258 WRT_REG_WORD(®->isp.semaphore, 0); 3259 spin_unlock_irq(&ha->hardware_lock); 3260 3261 fail: 3262 return ret; 3263 } 3264 3265 void 3266 qla2x00_free_irqs(scsi_qla_host_t *vha) 3267 { 3268 struct qla_hw_data *ha = vha->hw; 3269 struct rsp_que *rsp; 3270 3271 /* 3272 * We need to check that ha->rsp_q_map is valid in case we are called 3273 * from a probe failure context. 3274 */ 3275 if (!ha->rsp_q_map || !ha->rsp_q_map[0]) 3276 return; 3277 rsp = ha->rsp_q_map[0]; 3278 3279 if (ha->flags.msix_enabled) 3280 qla24xx_disable_msix(ha); 3281 else if (ha->flags.msi_enabled) { 3282 free_irq(ha->pdev->irq, rsp); 3283 pci_disable_msi(ha->pdev); 3284 } else 3285 free_irq(ha->pdev->irq, rsp); 3286 } 3287 3288 3289 int qla25xx_request_irq(struct rsp_que *rsp) 3290 { 3291 struct qla_hw_data *ha = rsp->hw; 3292 struct qla_init_msix_entry *intr = &msix_entries[2]; 3293 struct qla_msix_entry *msix = rsp->msix; 3294 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); 3295 int ret; 3296 3297 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); 3298 if (ret) { 3299 ql_log(ql_log_fatal, vha, 0x00e6, 3300 "MSI-X: Unable to register handler -- %x/%d.\n", 3301 msix->vector, ret); 3302 return ret; 3303 } 3304 msix->have_irq = 1; 3305 msix->rsp = rsp; 3306 return ret; 3307 } 3308 3309 3310 /* irq_set_affinity/irqbalance will trigger notification of cpu mask update */ 3311 static void qla_irq_affinity_notify(struct irq_affinity_notify *notify, 3312 const cpumask_t *mask) 3313 { 3314 struct qla_msix_entry *e = 3315 container_of(notify, struct qla_msix_entry, irq_notify); 3316 struct qla_hw_data *ha; 3317 struct scsi_qla_host *base_vha; 3318 3319 /* user is recommended to set mask to just 1 cpu */ 3320 e->cpuid = cpumask_first(mask); 3321 3322 ha = e->rsp->hw; 3323 base_vha = pci_get_drvdata(ha->pdev); 3324 3325 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3326 "%s: host %ld : vector %d cpu %d \n", __func__, 3327 base_vha->host_no, e->vector, e->cpuid); 3328 3329 if (e->have_irq) { 3330 if ((IS_QLA83XX(ha) || IS_QLA27XX(ha)) && 3331 (e->entry == QLA83XX_RSPQ_MSIX_ENTRY_NUMBER)) { 3332 ha->tgt.rspq_vector_cpuid = e->cpuid; 3333 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3334 "%s: host%ld: rspq vector %d cpu %d runtime change\n", 3335 __func__, base_vha->host_no, e->vector, e->cpuid); 3336 } 3337 } 3338 } 3339 3340 static void qla_irq_affinity_release(struct kref *ref) 3341 { 3342 struct irq_affinity_notify *notify = 3343 container_of(ref, struct irq_affinity_notify, kref); 3344 struct qla_msix_entry *e = 3345 container_of(notify, struct qla_msix_entry, irq_notify); 3346 struct scsi_qla_host *base_vha = pci_get_drvdata(e->rsp->hw->pdev); 3347 3348 ql_dbg(ql_dbg_init, base_vha, 0xffff, 3349 "%s: host%ld: vector %d cpu %d \n", __func__, 3350 base_vha->host_no, e->vector, e->cpuid); 3351 } 3352