1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2005 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 9 #include <linux/delay.h> 10 #include <scsi/scsi_tcq.h> 11 12 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 13 static void qla2x00_process_completed_request(struct scsi_qla_host *, uint32_t); 14 static void qla2x00_status_entry(scsi_qla_host_t *, void *); 15 static void qla2x00_status_cont_entry(scsi_qla_host_t *, sts_cont_entry_t *); 16 static void qla2x00_error_entry(scsi_qla_host_t *, sts_entry_t *); 17 static void qla2x00_ms_entry(scsi_qla_host_t *, ms_iocb_entry_t *); 18 19 static void qla24xx_ms_entry(scsi_qla_host_t *, struct ct_entry_24xx *); 20 21 /** 22 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 23 * @irq: 24 * @dev_id: SCSI driver HA context 25 * 26 * Called by system whenever the host adapter generates an interrupt. 27 * 28 * Returns handled flag. 29 */ 30 irqreturn_t 31 qla2100_intr_handler(int irq, void *dev_id) 32 { 33 scsi_qla_host_t *ha; 34 struct device_reg_2xxx __iomem *reg; 35 int status; 36 unsigned long flags; 37 unsigned long iter; 38 uint16_t hccr; 39 uint16_t mb[4]; 40 41 ha = (scsi_qla_host_t *) dev_id; 42 if (!ha) { 43 printk(KERN_INFO 44 "%s(): NULL host pointer\n", __func__); 45 return (IRQ_NONE); 46 } 47 48 reg = &ha->iobase->isp; 49 status = 0; 50 51 spin_lock_irqsave(&ha->hardware_lock, flags); 52 for (iter = 50; iter--; ) { 53 hccr = RD_REG_WORD(®->hccr); 54 if (hccr & HCCR_RISC_PAUSE) { 55 if (pci_channel_offline(ha->pdev)) 56 break; 57 58 /* 59 * Issue a "HARD" reset in order for the RISC interrupt 60 * bit to be cleared. Schedule a big hammmer to get 61 * out of the RISC PAUSED state. 62 */ 63 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 64 RD_REG_WORD(®->hccr); 65 66 ha->isp_ops->fw_dump(ha, 1); 67 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 68 break; 69 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 70 break; 71 72 if (RD_REG_WORD(®->semaphore) & BIT_0) { 73 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 74 RD_REG_WORD(®->hccr); 75 76 /* Get mailbox data. */ 77 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 78 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 79 qla2x00_mbx_completion(ha, mb[0]); 80 status |= MBX_INTERRUPT; 81 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 82 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 83 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 84 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 85 qla2x00_async_event(ha, mb); 86 } else { 87 /*EMPTY*/ 88 DEBUG2(printk("scsi(%ld): Unrecognized " 89 "interrupt type (%d).\n", 90 ha->host_no, mb[0])); 91 } 92 /* Release mailbox registers. */ 93 WRT_REG_WORD(®->semaphore, 0); 94 RD_REG_WORD(®->semaphore); 95 } else { 96 qla2x00_process_response_queue(ha); 97 98 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 99 RD_REG_WORD(®->hccr); 100 } 101 } 102 spin_unlock_irqrestore(&ha->hardware_lock, flags); 103 104 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 105 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 106 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 107 complete(&ha->mbx_intr_comp); 108 } 109 110 return (IRQ_HANDLED); 111 } 112 113 /** 114 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 115 * @irq: 116 * @dev_id: SCSI driver HA context 117 * 118 * Called by system whenever the host adapter generates an interrupt. 119 * 120 * Returns handled flag. 121 */ 122 irqreturn_t 123 qla2300_intr_handler(int irq, void *dev_id) 124 { 125 scsi_qla_host_t *ha; 126 struct device_reg_2xxx __iomem *reg; 127 int status; 128 unsigned long flags; 129 unsigned long iter; 130 uint32_t stat; 131 uint16_t hccr; 132 uint16_t mb[4]; 133 134 ha = (scsi_qla_host_t *) dev_id; 135 if (!ha) { 136 printk(KERN_INFO 137 "%s(): NULL host pointer\n", __func__); 138 return (IRQ_NONE); 139 } 140 141 reg = &ha->iobase->isp; 142 status = 0; 143 144 spin_lock_irqsave(&ha->hardware_lock, flags); 145 for (iter = 50; iter--; ) { 146 stat = RD_REG_DWORD(®->u.isp2300.host_status); 147 if (stat & HSR_RISC_PAUSED) { 148 if (pci_channel_offline(ha->pdev)) 149 break; 150 151 hccr = RD_REG_WORD(®->hccr); 152 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 153 qla_printk(KERN_INFO, ha, "Parity error -- " 154 "HCCR=%x, Dumping firmware!\n", hccr); 155 else 156 qla_printk(KERN_INFO, ha, "RISC paused -- " 157 "HCCR=%x, Dumping firmware!\n", hccr); 158 159 /* 160 * Issue a "HARD" reset in order for the RISC 161 * interrupt bit to be cleared. Schedule a big 162 * hammmer to get out of the RISC PAUSED state. 163 */ 164 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 165 RD_REG_WORD(®->hccr); 166 167 ha->isp_ops->fw_dump(ha, 1); 168 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 169 break; 170 } else if ((stat & HSR_RISC_INT) == 0) 171 break; 172 173 switch (stat & 0xff) { 174 case 0x1: 175 case 0x2: 176 case 0x10: 177 case 0x11: 178 qla2x00_mbx_completion(ha, MSW(stat)); 179 status |= MBX_INTERRUPT; 180 181 /* Release mailbox registers. */ 182 WRT_REG_WORD(®->semaphore, 0); 183 break; 184 case 0x12: 185 mb[0] = MSW(stat); 186 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 187 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 188 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 189 qla2x00_async_event(ha, mb); 190 break; 191 case 0x13: 192 qla2x00_process_response_queue(ha); 193 break; 194 case 0x15: 195 mb[0] = MBA_CMPLT_1_16BIT; 196 mb[1] = MSW(stat); 197 qla2x00_async_event(ha, mb); 198 break; 199 case 0x16: 200 mb[0] = MBA_SCSI_COMPLETION; 201 mb[1] = MSW(stat); 202 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 203 qla2x00_async_event(ha, mb); 204 break; 205 default: 206 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 207 "(%d).\n", 208 ha->host_no, stat & 0xff)); 209 break; 210 } 211 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 212 RD_REG_WORD_RELAXED(®->hccr); 213 } 214 spin_unlock_irqrestore(&ha->hardware_lock, flags); 215 216 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 217 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 218 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 219 complete(&ha->mbx_intr_comp); 220 } 221 222 return (IRQ_HANDLED); 223 } 224 225 /** 226 * qla2x00_mbx_completion() - Process mailbox command completions. 227 * @ha: SCSI driver HA context 228 * @mb0: Mailbox0 register 229 */ 230 static void 231 qla2x00_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) 232 { 233 uint16_t cnt; 234 uint16_t __iomem *wptr; 235 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 236 237 /* Load return mailbox registers. */ 238 ha->flags.mbox_int = 1; 239 ha->mailbox_out[0] = mb0; 240 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 241 242 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 243 if (IS_QLA2200(ha) && cnt == 8) 244 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 245 if (cnt == 4 || cnt == 5) 246 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 247 else 248 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 249 250 wptr++; 251 } 252 253 if (ha->mcp) { 254 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", 255 __func__, ha->host_no, ha->mcp->mb[0])); 256 } else { 257 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", 258 __func__, ha->host_no)); 259 } 260 } 261 262 /** 263 * qla2x00_async_event() - Process aynchronous events. 264 * @ha: SCSI driver HA context 265 * @mb: Mailbox registers (0 - 3) 266 */ 267 void 268 qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb) 269 { 270 #define LS_UNKNOWN 2 271 static char *link_speeds[5] = { "1", "2", "?", "4", "8" }; 272 char *link_speed; 273 uint16_t handle_cnt; 274 uint16_t cnt; 275 uint32_t handles[5]; 276 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 277 uint32_t rscn_entry, host_pid; 278 uint8_t rscn_queue_index; 279 280 /* Setup to process RIO completion. */ 281 handle_cnt = 0; 282 switch (mb[0]) { 283 case MBA_SCSI_COMPLETION: 284 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 285 handle_cnt = 1; 286 break; 287 case MBA_CMPLT_1_16BIT: 288 handles[0] = mb[1]; 289 handle_cnt = 1; 290 mb[0] = MBA_SCSI_COMPLETION; 291 break; 292 case MBA_CMPLT_2_16BIT: 293 handles[0] = mb[1]; 294 handles[1] = mb[2]; 295 handle_cnt = 2; 296 mb[0] = MBA_SCSI_COMPLETION; 297 break; 298 case MBA_CMPLT_3_16BIT: 299 handles[0] = mb[1]; 300 handles[1] = mb[2]; 301 handles[2] = mb[3]; 302 handle_cnt = 3; 303 mb[0] = MBA_SCSI_COMPLETION; 304 break; 305 case MBA_CMPLT_4_16BIT: 306 handles[0] = mb[1]; 307 handles[1] = mb[2]; 308 handles[2] = mb[3]; 309 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 310 handle_cnt = 4; 311 mb[0] = MBA_SCSI_COMPLETION; 312 break; 313 case MBA_CMPLT_5_16BIT: 314 handles[0] = mb[1]; 315 handles[1] = mb[2]; 316 handles[2] = mb[3]; 317 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 318 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 319 handle_cnt = 5; 320 mb[0] = MBA_SCSI_COMPLETION; 321 break; 322 case MBA_CMPLT_2_32BIT: 323 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 324 handles[1] = le32_to_cpu( 325 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 326 RD_MAILBOX_REG(ha, reg, 6)); 327 handle_cnt = 2; 328 mb[0] = MBA_SCSI_COMPLETION; 329 break; 330 default: 331 break; 332 } 333 334 switch (mb[0]) { 335 case MBA_SCSI_COMPLETION: /* Fast Post */ 336 if (!ha->flags.online) 337 break; 338 339 for (cnt = 0; cnt < handle_cnt; cnt++) 340 qla2x00_process_completed_request(ha, handles[cnt]); 341 break; 342 343 case MBA_RESET: /* Reset */ 344 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", ha->host_no)); 345 346 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 347 break; 348 349 case MBA_SYSTEM_ERR: /* System Error */ 350 qla_printk(KERN_INFO, ha, 351 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n", 352 mb[1], mb[2], mb[3]); 353 354 ha->isp_ops->fw_dump(ha, 1); 355 356 if (IS_FWI2_CAPABLE(ha)) { 357 if (mb[1] == 0 && mb[2] == 0) { 358 qla_printk(KERN_ERR, ha, 359 "Unrecoverable Hardware Error: adapter " 360 "marked OFFLINE!\n"); 361 ha->flags.online = 0; 362 } else 363 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 364 } else if (mb[1] == 0) { 365 qla_printk(KERN_INFO, ha, 366 "Unrecoverable Hardware Error: adapter marked " 367 "OFFLINE!\n"); 368 ha->flags.online = 0; 369 } else 370 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 371 break; 372 373 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 374 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error.\n", 375 ha->host_no)); 376 qla_printk(KERN_WARNING, ha, "ISP Request Transfer Error.\n"); 377 378 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 379 break; 380 381 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 382 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", 383 ha->host_no)); 384 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); 385 386 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 387 break; 388 389 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 390 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", 391 ha->host_no)); 392 break; 393 394 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 395 DEBUG2(printk("scsi(%ld): LIP occured (%x).\n", ha->host_no, 396 mb[1])); 397 qla_printk(KERN_INFO, ha, "LIP occured (%x).\n", mb[1]); 398 399 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 400 atomic_set(&ha->loop_state, LOOP_DOWN); 401 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 402 qla2x00_mark_all_devices_lost(ha, 1); 403 } 404 405 if (ha->parent) { 406 atomic_set(&ha->vp_state, VP_FAILED); 407 fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); 408 } 409 410 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); 411 412 ha->flags.management_server_logged_in = 0; 413 break; 414 415 case MBA_LOOP_UP: /* Loop Up Event */ 416 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 417 link_speed = link_speeds[0]; 418 ha->link_data_rate = PORT_SPEED_1GB; 419 } else { 420 link_speed = link_speeds[LS_UNKNOWN]; 421 if (mb[1] < 5) 422 link_speed = link_speeds[mb[1]]; 423 ha->link_data_rate = mb[1]; 424 } 425 426 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", 427 ha->host_no, link_speed)); 428 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", 429 link_speed); 430 431 ha->flags.management_server_logged_in = 0; 432 break; 433 434 case MBA_LOOP_DOWN: /* Loop Down Event */ 435 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN (%x).\n", 436 ha->host_no, mb[1])); 437 qla_printk(KERN_INFO, ha, "LOOP DOWN detected (%x).\n", mb[1]); 438 439 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 440 atomic_set(&ha->loop_state, LOOP_DOWN); 441 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 442 ha->device_flags |= DFLG_NO_CABLE; 443 qla2x00_mark_all_devices_lost(ha, 1); 444 } 445 446 if (ha->parent) { 447 atomic_set(&ha->vp_state, VP_FAILED); 448 fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); 449 } 450 451 ha->flags.management_server_logged_in = 0; 452 ha->link_data_rate = PORT_SPEED_UNKNOWN; 453 if (ql2xfdmienable) 454 set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags); 455 break; 456 457 case MBA_LIP_RESET: /* LIP reset occurred */ 458 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", 459 ha->host_no, mb[1])); 460 qla_printk(KERN_INFO, ha, 461 "LIP reset occured (%x).\n", mb[1]); 462 463 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 464 atomic_set(&ha->loop_state, LOOP_DOWN); 465 atomic_set(&ha->loop_down_timer, LOOP_DOWN_TIME); 466 qla2x00_mark_all_devices_lost(ha, 1); 467 } 468 469 if (ha->parent) { 470 atomic_set(&ha->vp_state, VP_FAILED); 471 fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); 472 } 473 474 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 475 476 ha->operating_mode = LOOP; 477 ha->flags.management_server_logged_in = 0; 478 break; 479 480 case MBA_POINT_TO_POINT: /* Point-to-Point */ 481 if (IS_QLA2100(ha)) 482 break; 483 484 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE received.\n", 485 ha->host_no)); 486 487 /* 488 * Until there's a transition from loop down to loop up, treat 489 * this as loop down only. 490 */ 491 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 492 atomic_set(&ha->loop_state, LOOP_DOWN); 493 if (!atomic_read(&ha->loop_down_timer)) 494 atomic_set(&ha->loop_down_timer, 495 LOOP_DOWN_TIME); 496 qla2x00_mark_all_devices_lost(ha, 1); 497 } 498 499 if (ha->parent) { 500 atomic_set(&ha->vp_state, VP_FAILED); 501 fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); 502 } 503 504 if (!(test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags))) { 505 set_bit(RESET_MARKER_NEEDED, &ha->dpc_flags); 506 } 507 set_bit(REGISTER_FC4_NEEDED, &ha->dpc_flags); 508 509 ha->flags.gpsc_supported = 1; 510 ha->flags.management_server_logged_in = 0; 511 break; 512 513 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 514 if (IS_QLA2100(ha)) 515 break; 516 517 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " 518 "received.\n", 519 ha->host_no)); 520 qla_printk(KERN_INFO, ha, 521 "Configuration change detected: value=%x.\n", mb[1]); 522 523 if (atomic_read(&ha->loop_state) != LOOP_DOWN) { 524 atomic_set(&ha->loop_state, LOOP_DOWN); 525 if (!atomic_read(&ha->loop_down_timer)) 526 atomic_set(&ha->loop_down_timer, 527 LOOP_DOWN_TIME); 528 qla2x00_mark_all_devices_lost(ha, 1); 529 } 530 531 if (ha->parent) { 532 atomic_set(&ha->vp_state, VP_FAILED); 533 fc_vport_set_state(ha->fc_vport, FC_VPORT_FAILED); 534 } 535 536 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 537 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); 538 break; 539 540 case MBA_PORT_UPDATE: /* Port database update */ 541 /* 542 * If PORT UPDATE is global (recieved LIP_OCCURED/LIP_RESET 543 * event etc. earlier indicating loop is down) then process 544 * it. Otherwise ignore it and Wait for RSCN to come in. 545 */ 546 atomic_set(&ha->loop_down_timer, 0); 547 if (atomic_read(&ha->loop_state) != LOOP_DOWN && 548 atomic_read(&ha->loop_state) != LOOP_DEAD) { 549 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " 550 "ignored %04x/%04x/%04x.\n", ha->host_no, mb[1], 551 mb[2], mb[3])); 552 break; 553 } 554 555 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", 556 ha->host_no)); 557 DEBUG(printk(KERN_INFO 558 "scsi(%ld): Port database changed %04x %04x %04x.\n", 559 ha->host_no, mb[1], mb[2], mb[3])); 560 561 /* 562 * Mark all devices as missing so we will login again. 563 */ 564 atomic_set(&ha->loop_state, LOOP_UP); 565 566 qla2x00_mark_all_devices_lost(ha, 1); 567 568 ha->flags.rscn_queue_overflow = 1; 569 570 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 571 set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags); 572 break; 573 574 case MBA_RSCN_UPDATE: /* State Change Registration */ 575 /* Check if the Vport has issued a SCR */ 576 if (ha->parent && test_bit(VP_SCR_NEEDED, &ha->vp_flags)) 577 break; 578 /* Only handle SCNs for our Vport index. */ 579 if (ha->flags.npiv_supported && ha->vp_idx != mb[3]) 580 break; 581 582 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", 583 ha->host_no)); 584 DEBUG(printk(KERN_INFO 585 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n", 586 ha->host_no, mb[1], mb[2], mb[3])); 587 588 rscn_entry = (mb[1] << 16) | mb[2]; 589 host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) | 590 ha->d_id.b.al_pa; 591 if (rscn_entry == host_pid) { 592 DEBUG(printk(KERN_INFO 593 "scsi(%ld): Ignoring RSCN update to local host " 594 "port ID (%06x)\n", 595 ha->host_no, host_pid)); 596 break; 597 } 598 599 rscn_queue_index = ha->rscn_in_ptr + 1; 600 if (rscn_queue_index == MAX_RSCN_COUNT) 601 rscn_queue_index = 0; 602 if (rscn_queue_index != ha->rscn_out_ptr) { 603 ha->rscn_queue[ha->rscn_in_ptr] = rscn_entry; 604 ha->rscn_in_ptr = rscn_queue_index; 605 } else { 606 ha->flags.rscn_queue_overflow = 1; 607 } 608 609 atomic_set(&ha->loop_state, LOOP_UPDATE); 610 atomic_set(&ha->loop_down_timer, 0); 611 ha->flags.management_server_logged_in = 0; 612 613 set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags); 614 set_bit(RSCN_UPDATE, &ha->dpc_flags); 615 break; 616 617 /* case MBA_RIO_RESPONSE: */ 618 case MBA_ZIO_RESPONSE: 619 DEBUG2(printk("scsi(%ld): [R|Z]IO update completion.\n", 620 ha->host_no)); 621 DEBUG(printk(KERN_INFO 622 "scsi(%ld): [R|Z]IO update completion.\n", 623 ha->host_no)); 624 625 if (IS_FWI2_CAPABLE(ha)) 626 qla24xx_process_response_queue(ha); 627 else 628 qla2x00_process_response_queue(ha); 629 break; 630 631 case MBA_DISCARD_RND_FRAME: 632 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " 633 "%04x.\n", ha->host_no, mb[1], mb[2], mb[3])); 634 break; 635 636 case MBA_TRACE_NOTIFICATION: 637 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", 638 ha->host_no, mb[1], mb[2])); 639 break; 640 } 641 642 if (!ha->parent && ha->num_vhosts) 643 qla2x00_alert_all_vps(ha, mb); 644 } 645 646 static void 647 qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, void *data) 648 { 649 fc_port_t *fcport = data; 650 651 if (fcport->ha->max_q_depth <= sdev->queue_depth) 652 return; 653 654 if (sdev->ordered_tags) 655 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, 656 sdev->queue_depth + 1); 657 else 658 scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, 659 sdev->queue_depth + 1); 660 661 fcport->last_ramp_up = jiffies; 662 663 DEBUG2(qla_printk(KERN_INFO, fcport->ha, 664 "scsi(%ld:%d:%d:%d): Queue depth adjusted-up to %d.\n", 665 fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun, 666 sdev->queue_depth)); 667 } 668 669 static void 670 qla2x00_adjust_sdev_qdepth_down(struct scsi_device *sdev, void *data) 671 { 672 fc_port_t *fcport = data; 673 674 if (!scsi_track_queue_full(sdev, sdev->queue_depth - 1)) 675 return; 676 677 DEBUG2(qla_printk(KERN_INFO, fcport->ha, 678 "scsi(%ld:%d:%d:%d): Queue depth adjusted-down to %d.\n", 679 fcport->ha->host_no, sdev->channel, sdev->id, sdev->lun, 680 sdev->queue_depth)); 681 } 682 683 static inline void 684 qla2x00_ramp_up_queue_depth(scsi_qla_host_t *ha, srb_t *sp) 685 { 686 fc_port_t *fcport; 687 struct scsi_device *sdev; 688 689 sdev = sp->cmd->device; 690 if (sdev->queue_depth >= ha->max_q_depth) 691 return; 692 693 fcport = sp->fcport; 694 if (time_before(jiffies, 695 fcport->last_ramp_up + ql2xqfullrampup * HZ)) 696 return; 697 if (time_before(jiffies, 698 fcport->last_queue_full + ql2xqfullrampup * HZ)) 699 return; 700 701 starget_for_each_device(sdev->sdev_target, fcport, 702 qla2x00_adjust_sdev_qdepth_up); 703 } 704 705 /** 706 * qla2x00_process_completed_request() - Process a Fast Post response. 707 * @ha: SCSI driver HA context 708 * @index: SRB index 709 */ 710 static void 711 qla2x00_process_completed_request(struct scsi_qla_host *ha, uint32_t index) 712 { 713 srb_t *sp; 714 715 /* Validate handle. */ 716 if (index >= MAX_OUTSTANDING_COMMANDS) { 717 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", 718 ha->host_no, index)); 719 qla_printk(KERN_WARNING, ha, 720 "Invalid SCSI completion handle %d.\n", index); 721 722 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 723 return; 724 } 725 726 sp = ha->outstanding_cmds[index]; 727 if (sp) { 728 /* Free outstanding command slot. */ 729 ha->outstanding_cmds[index] = NULL; 730 731 CMD_COMPL_STATUS(sp->cmd) = 0L; 732 CMD_SCSI_STATUS(sp->cmd) = 0L; 733 734 /* Save ISP completion status */ 735 sp->cmd->result = DID_OK << 16; 736 737 qla2x00_ramp_up_queue_depth(ha, sp); 738 qla2x00_sp_compl(ha, sp); 739 } else { 740 DEBUG2(printk("scsi(%ld): Invalid ISP SCSI completion handle\n", 741 ha->host_no)); 742 qla_printk(KERN_WARNING, ha, 743 "Invalid ISP SCSI completion handle\n"); 744 745 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 746 } 747 } 748 749 /** 750 * qla2x00_process_response_queue() - Process response queue entries. 751 * @ha: SCSI driver HA context 752 */ 753 void 754 qla2x00_process_response_queue(struct scsi_qla_host *ha) 755 { 756 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 757 sts_entry_t *pkt; 758 uint16_t handle_cnt; 759 uint16_t cnt; 760 761 if (!ha->flags.online) 762 return; 763 764 while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { 765 pkt = (sts_entry_t *)ha->response_ring_ptr; 766 767 ha->rsp_ring_index++; 768 if (ha->rsp_ring_index == ha->response_q_length) { 769 ha->rsp_ring_index = 0; 770 ha->response_ring_ptr = ha->response_ring; 771 } else { 772 ha->response_ring_ptr++; 773 } 774 775 if (pkt->entry_status != 0) { 776 DEBUG3(printk(KERN_INFO 777 "scsi(%ld): Process error entry.\n", ha->host_no)); 778 779 qla2x00_error_entry(ha, pkt); 780 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 781 wmb(); 782 continue; 783 } 784 785 switch (pkt->entry_type) { 786 case STATUS_TYPE: 787 qla2x00_status_entry(ha, pkt); 788 break; 789 case STATUS_TYPE_21: 790 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 791 for (cnt = 0; cnt < handle_cnt; cnt++) { 792 qla2x00_process_completed_request(ha, 793 ((sts21_entry_t *)pkt)->handle[cnt]); 794 } 795 break; 796 case STATUS_TYPE_22: 797 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 798 for (cnt = 0; cnt < handle_cnt; cnt++) { 799 qla2x00_process_completed_request(ha, 800 ((sts22_entry_t *)pkt)->handle[cnt]); 801 } 802 break; 803 case STATUS_CONT_TYPE: 804 qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); 805 break; 806 case MS_IOCB_TYPE: 807 qla2x00_ms_entry(ha, (ms_iocb_entry_t *)pkt); 808 break; 809 default: 810 /* Type Not Supported. */ 811 DEBUG4(printk(KERN_WARNING 812 "scsi(%ld): Received unknown response pkt type %x " 813 "entry status=%x.\n", 814 ha->host_no, pkt->entry_type, pkt->entry_status)); 815 break; 816 } 817 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 818 wmb(); 819 } 820 821 /* Adjust ring index */ 822 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), ha->rsp_ring_index); 823 } 824 825 static inline void 826 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len) 827 { 828 struct scsi_cmnd *cp = sp->cmd; 829 830 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 831 sense_len = SCSI_SENSE_BUFFERSIZE; 832 833 CMD_ACTUAL_SNSLEN(cp) = sense_len; 834 sp->request_sense_length = sense_len; 835 sp->request_sense_ptr = cp->sense_buffer; 836 if (sp->request_sense_length > 32) 837 sense_len = 32; 838 839 memcpy(cp->sense_buffer, sense_data, sense_len); 840 841 sp->request_sense_ptr += sense_len; 842 sp->request_sense_length -= sense_len; 843 if (sp->request_sense_length != 0) 844 sp->ha->status_srb = sp; 845 846 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) " 847 "cmd=%p pid=%ld\n", __func__, sp->ha->host_no, cp->device->channel, 848 cp->device->id, cp->device->lun, cp, cp->serial_number)); 849 if (sense_len) 850 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, 851 CMD_ACTUAL_SNSLEN(cp))); 852 } 853 854 /** 855 * qla2x00_status_entry() - Process a Status IOCB entry. 856 * @ha: SCSI driver HA context 857 * @pkt: Entry pointer 858 */ 859 static void 860 qla2x00_status_entry(scsi_qla_host_t *ha, void *pkt) 861 { 862 srb_t *sp; 863 fc_port_t *fcport; 864 struct scsi_cmnd *cp; 865 sts_entry_t *sts; 866 struct sts_entry_24xx *sts24; 867 uint16_t comp_status; 868 uint16_t scsi_status; 869 uint8_t lscsi_status; 870 int32_t resid; 871 uint32_t sense_len, rsp_info_len, resid_len, fw_resid_len; 872 uint8_t *rsp_info, *sense_data; 873 874 sts = (sts_entry_t *) pkt; 875 sts24 = (struct sts_entry_24xx *) pkt; 876 if (IS_FWI2_CAPABLE(ha)) { 877 comp_status = le16_to_cpu(sts24->comp_status); 878 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 879 } else { 880 comp_status = le16_to_cpu(sts->comp_status); 881 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 882 } 883 884 /* Fast path completion. */ 885 if (comp_status == CS_COMPLETE && scsi_status == 0) { 886 qla2x00_process_completed_request(ha, sts->handle); 887 888 return; 889 } 890 891 /* Validate handle. */ 892 if (sts->handle < MAX_OUTSTANDING_COMMANDS) { 893 sp = ha->outstanding_cmds[sts->handle]; 894 ha->outstanding_cmds[sts->handle] = NULL; 895 } else 896 sp = NULL; 897 898 if (sp == NULL) { 899 DEBUG2(printk("scsi(%ld): Status Entry invalid handle.\n", 900 ha->host_no)); 901 qla_printk(KERN_WARNING, ha, "Status Entry invalid handle.\n"); 902 903 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 904 qla2xxx_wake_dpc(ha); 905 return; 906 } 907 cp = sp->cmd; 908 if (cp == NULL) { 909 DEBUG2(printk("scsi(%ld): Command already returned back to OS " 910 "pkt->handle=%d sp=%p.\n", ha->host_no, sts->handle, sp)); 911 qla_printk(KERN_WARNING, ha, 912 "Command is NULL: already returned to OS (sp=%p)\n", sp); 913 914 return; 915 } 916 917 lscsi_status = scsi_status & STATUS_MASK; 918 CMD_ENTRY_STATUS(cp) = sts->entry_status; 919 CMD_COMPL_STATUS(cp) = comp_status; 920 CMD_SCSI_STATUS(cp) = scsi_status; 921 922 fcport = sp->fcport; 923 924 sense_len = rsp_info_len = resid_len = fw_resid_len = 0; 925 if (IS_FWI2_CAPABLE(ha)) { 926 sense_len = le32_to_cpu(sts24->sense_len); 927 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 928 resid_len = le32_to_cpu(sts24->rsp_residual_count); 929 fw_resid_len = le32_to_cpu(sts24->residual_len); 930 rsp_info = sts24->data; 931 sense_data = sts24->data; 932 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 933 } else { 934 sense_len = le16_to_cpu(sts->req_sense_length); 935 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 936 resid_len = le32_to_cpu(sts->residual_length); 937 rsp_info = sts->rsp_info; 938 sense_data = sts->req_sense_data; 939 } 940 941 /* Check for any FCP transport errors. */ 942 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 943 /* Sense data lies beyond any FCP RESPONSE data. */ 944 if (IS_FWI2_CAPABLE(ha)) 945 sense_data += rsp_info_len; 946 if (rsp_info_len > 3 && rsp_info[3]) { 947 DEBUG2(printk("scsi(%ld:%d:%d:%d) FCP I/O protocol " 948 "failure (%x/%02x%02x%02x%02x%02x%02x%02x%02x)..." 949 "retrying command\n", ha->host_no, 950 cp->device->channel, cp->device->id, 951 cp->device->lun, rsp_info_len, rsp_info[0], 952 rsp_info[1], rsp_info[2], rsp_info[3], rsp_info[4], 953 rsp_info[5], rsp_info[6], rsp_info[7])); 954 955 cp->result = DID_BUS_BUSY << 16; 956 qla2x00_sp_compl(ha, sp); 957 return; 958 } 959 } 960 961 /* Check for overrun. */ 962 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 963 scsi_status & SS_RESIDUAL_OVER) 964 comp_status = CS_DATA_OVERRUN; 965 966 /* 967 * Based on Host and scsi status generate status code for Linux 968 */ 969 switch (comp_status) { 970 case CS_COMPLETE: 971 case CS_QUEUE_FULL: 972 if (scsi_status == 0) { 973 cp->result = DID_OK << 16; 974 break; 975 } 976 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 977 resid = resid_len; 978 scsi_set_resid(cp, resid); 979 CMD_RESID_LEN(cp) = resid; 980 981 if (!lscsi_status && 982 ((unsigned)(scsi_bufflen(cp) - resid) < 983 cp->underflow)) { 984 qla_printk(KERN_INFO, ha, 985 "scsi(%ld:%d:%d:%d): Mid-layer underflow " 986 "detected (%x of %x bytes)...returning " 987 "error status.\n", ha->host_no, 988 cp->device->channel, cp->device->id, 989 cp->device->lun, resid, 990 scsi_bufflen(cp)); 991 992 cp->result = DID_ERROR << 16; 993 break; 994 } 995 } 996 cp->result = DID_OK << 16 | lscsi_status; 997 998 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 999 DEBUG2(printk(KERN_INFO 1000 "scsi(%ld): QUEUE FULL status detected " 1001 "0x%x-0x%x.\n", ha->host_no, comp_status, 1002 scsi_status)); 1003 1004 /* Adjust queue depth for all luns on the port. */ 1005 fcport->last_queue_full = jiffies; 1006 starget_for_each_device(cp->device->sdev_target, 1007 fcport, qla2x00_adjust_sdev_qdepth_down); 1008 break; 1009 } 1010 if (lscsi_status != SS_CHECK_CONDITION) 1011 break; 1012 1013 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 1014 if (!(scsi_status & SS_SENSE_LEN_VALID)) 1015 break; 1016 1017 qla2x00_handle_sense(sp, sense_data, sense_len); 1018 break; 1019 1020 case CS_DATA_UNDERRUN: 1021 resid = resid_len; 1022 /* Use F/W calculated residual length. */ 1023 if (IS_FWI2_CAPABLE(ha)) { 1024 if (scsi_status & SS_RESIDUAL_UNDER && 1025 resid != fw_resid_len) { 1026 scsi_status &= ~SS_RESIDUAL_UNDER; 1027 lscsi_status = 0; 1028 } 1029 resid = fw_resid_len; 1030 } 1031 1032 if (scsi_status & SS_RESIDUAL_UNDER) { 1033 scsi_set_resid(cp, resid); 1034 CMD_RESID_LEN(cp) = resid; 1035 } else { 1036 DEBUG2(printk(KERN_INFO 1037 "scsi(%ld:%d:%d) UNDERRUN status detected " 1038 "0x%x-0x%x. resid=0x%x fw_resid=0x%x cdb=0x%x " 1039 "os_underflow=0x%x\n", ha->host_no, 1040 cp->device->id, cp->device->lun, comp_status, 1041 scsi_status, resid_len, resid, cp->cmnd[0], 1042 cp->underflow)); 1043 1044 } 1045 1046 /* 1047 * Check to see if SCSI Status is non zero. If so report SCSI 1048 * Status. 1049 */ 1050 if (lscsi_status != 0) { 1051 cp->result = DID_OK << 16 | lscsi_status; 1052 1053 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 1054 DEBUG2(printk(KERN_INFO 1055 "scsi(%ld): QUEUE FULL status detected " 1056 "0x%x-0x%x.\n", ha->host_no, comp_status, 1057 scsi_status)); 1058 1059 /* 1060 * Adjust queue depth for all luns on the 1061 * port. 1062 */ 1063 fcport->last_queue_full = jiffies; 1064 starget_for_each_device( 1065 cp->device->sdev_target, fcport, 1066 qla2x00_adjust_sdev_qdepth_down); 1067 break; 1068 } 1069 if (lscsi_status != SS_CHECK_CONDITION) 1070 break; 1071 1072 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 1073 if (!(scsi_status & SS_SENSE_LEN_VALID)) 1074 break; 1075 1076 qla2x00_handle_sense(sp, sense_data, sense_len); 1077 1078 /* 1079 * In case of a Underrun condition, set both the lscsi 1080 * status and the completion status to appropriate 1081 * values. 1082 */ 1083 if (resid && 1084 ((unsigned)(scsi_bufflen(cp) - resid) < 1085 cp->underflow)) { 1086 DEBUG2(qla_printk(KERN_INFO, ha, 1087 "scsi(%ld:%d:%d:%d): Mid-layer underflow " 1088 "detected (%x of %x bytes)...returning " 1089 "error status.\n", ha->host_no, 1090 cp->device->channel, cp->device->id, 1091 cp->device->lun, resid, 1092 scsi_bufflen(cp))); 1093 1094 cp->result = DID_ERROR << 16 | lscsi_status; 1095 } 1096 } else { 1097 /* 1098 * If RISC reports underrun and target does not report 1099 * it then we must have a lost frame, so tell upper 1100 * layer to retry it by reporting a bus busy. 1101 */ 1102 if (!(scsi_status & SS_RESIDUAL_UNDER)) { 1103 DEBUG2(printk("scsi(%ld:%d:%d:%d) Dropped " 1104 "frame(s) detected (%x of %x bytes)..." 1105 "retrying command.\n", ha->host_no, 1106 cp->device->channel, cp->device->id, 1107 cp->device->lun, resid, 1108 scsi_bufflen(cp))); 1109 1110 cp->result = DID_BUS_BUSY << 16; 1111 break; 1112 } 1113 1114 /* Handle mid-layer underflow */ 1115 if ((unsigned)(scsi_bufflen(cp) - resid) < 1116 cp->underflow) { 1117 qla_printk(KERN_INFO, ha, 1118 "scsi(%ld:%d:%d:%d): Mid-layer underflow " 1119 "detected (%x of %x bytes)...returning " 1120 "error status.\n", ha->host_no, 1121 cp->device->channel, cp->device->id, 1122 cp->device->lun, resid, 1123 scsi_bufflen(cp)); 1124 1125 cp->result = DID_ERROR << 16; 1126 break; 1127 } 1128 1129 /* Everybody online, looking good... */ 1130 cp->result = DID_OK << 16; 1131 } 1132 break; 1133 1134 case CS_DATA_OVERRUN: 1135 DEBUG2(printk(KERN_INFO 1136 "scsi(%ld:%d:%d): OVERRUN status detected 0x%x-0x%x\n", 1137 ha->host_no, cp->device->id, cp->device->lun, comp_status, 1138 scsi_status)); 1139 DEBUG2(printk(KERN_INFO 1140 "CDB: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", 1141 cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3], 1142 cp->cmnd[4], cp->cmnd[5])); 1143 DEBUG2(printk(KERN_INFO 1144 "PID=0x%lx req=0x%x xtra=0x%x -- returning DID_ERROR " 1145 "status!\n", 1146 cp->serial_number, scsi_bufflen(cp), resid_len)); 1147 1148 cp->result = DID_ERROR << 16; 1149 break; 1150 1151 case CS_PORT_LOGGED_OUT: 1152 case CS_PORT_CONFIG_CHG: 1153 case CS_PORT_BUSY: 1154 case CS_INCOMPLETE: 1155 case CS_PORT_UNAVAILABLE: 1156 /* 1157 * If the port is in Target Down state, return all IOs for this 1158 * Target with DID_NO_CONNECT ELSE Queue the IOs in the 1159 * retry_queue. 1160 */ 1161 DEBUG2(printk("scsi(%ld:%d:%d): status_entry: Port Down " 1162 "pid=%ld, compl status=0x%x, port state=0x%x\n", 1163 ha->host_no, cp->device->id, cp->device->lun, 1164 cp->serial_number, comp_status, 1165 atomic_read(&fcport->state))); 1166 1167 cp->result = DID_BUS_BUSY << 16; 1168 if (atomic_read(&fcport->state) == FCS_ONLINE) { 1169 qla2x00_mark_device_lost(ha, fcport, 1, 1); 1170 } 1171 break; 1172 1173 case CS_RESET: 1174 DEBUG2(printk(KERN_INFO 1175 "scsi(%ld): RESET status detected 0x%x-0x%x.\n", 1176 ha->host_no, comp_status, scsi_status)); 1177 1178 cp->result = DID_RESET << 16; 1179 break; 1180 1181 case CS_ABORTED: 1182 /* 1183 * hv2.19.12 - DID_ABORT does not retry the request if we 1184 * aborted this request then abort otherwise it must be a 1185 * reset. 1186 */ 1187 DEBUG2(printk(KERN_INFO 1188 "scsi(%ld): ABORT status detected 0x%x-0x%x.\n", 1189 ha->host_no, comp_status, scsi_status)); 1190 1191 cp->result = DID_RESET << 16; 1192 break; 1193 1194 case CS_TIMEOUT: 1195 cp->result = DID_BUS_BUSY << 16; 1196 1197 if (IS_FWI2_CAPABLE(ha)) { 1198 DEBUG2(printk(KERN_INFO 1199 "scsi(%ld:%d:%d:%d): TIMEOUT status detected " 1200 "0x%x-0x%x\n", ha->host_no, cp->device->channel, 1201 cp->device->id, cp->device->lun, comp_status, 1202 scsi_status)); 1203 break; 1204 } 1205 DEBUG2(printk(KERN_INFO 1206 "scsi(%ld:%d:%d:%d): TIMEOUT status detected 0x%x-0x%x " 1207 "sflags=%x.\n", ha->host_no, cp->device->channel, 1208 cp->device->id, cp->device->lun, comp_status, scsi_status, 1209 le16_to_cpu(sts->status_flags))); 1210 1211 /* Check to see if logout occurred. */ 1212 if ((le16_to_cpu(sts->status_flags) & SF_LOGOUT_SENT)) 1213 qla2x00_mark_device_lost(ha, fcport, 1, 1); 1214 break; 1215 1216 default: 1217 DEBUG3(printk("scsi(%ld): Error detected (unknown status) " 1218 "0x%x-0x%x.\n", ha->host_no, comp_status, scsi_status)); 1219 qla_printk(KERN_INFO, ha, 1220 "Unknown status detected 0x%x-0x%x.\n", 1221 comp_status, scsi_status); 1222 1223 cp->result = DID_ERROR << 16; 1224 break; 1225 } 1226 1227 /* Place command on done queue. */ 1228 if (ha->status_srb == NULL) 1229 qla2x00_sp_compl(ha, sp); 1230 } 1231 1232 /** 1233 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 1234 * @ha: SCSI driver HA context 1235 * @pkt: Entry pointer 1236 * 1237 * Extended sense data. 1238 */ 1239 static void 1240 qla2x00_status_cont_entry(scsi_qla_host_t *ha, sts_cont_entry_t *pkt) 1241 { 1242 uint8_t sense_sz = 0; 1243 srb_t *sp = ha->status_srb; 1244 struct scsi_cmnd *cp; 1245 1246 if (sp != NULL && sp->request_sense_length != 0) { 1247 cp = sp->cmd; 1248 if (cp == NULL) { 1249 DEBUG2(printk("%s(): Cmd already returned back to OS " 1250 "sp=%p.\n", __func__, sp)); 1251 qla_printk(KERN_INFO, ha, 1252 "cmd is NULL: already returned to OS (sp=%p)\n", 1253 sp); 1254 1255 ha->status_srb = NULL; 1256 return; 1257 } 1258 1259 if (sp->request_sense_length > sizeof(pkt->data)) { 1260 sense_sz = sizeof(pkt->data); 1261 } else { 1262 sense_sz = sp->request_sense_length; 1263 } 1264 1265 /* Move sense data. */ 1266 if (IS_FWI2_CAPABLE(ha)) 1267 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 1268 memcpy(sp->request_sense_ptr, pkt->data, sense_sz); 1269 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); 1270 1271 sp->request_sense_ptr += sense_sz; 1272 sp->request_sense_length -= sense_sz; 1273 1274 /* Place command on done queue. */ 1275 if (sp->request_sense_length == 0) { 1276 ha->status_srb = NULL; 1277 qla2x00_sp_compl(ha, sp); 1278 } 1279 } 1280 } 1281 1282 /** 1283 * qla2x00_error_entry() - Process an error entry. 1284 * @ha: SCSI driver HA context 1285 * @pkt: Entry pointer 1286 */ 1287 static void 1288 qla2x00_error_entry(scsi_qla_host_t *ha, sts_entry_t *pkt) 1289 { 1290 srb_t *sp; 1291 1292 #if defined(QL_DEBUG_LEVEL_2) 1293 if (pkt->entry_status & RF_INV_E_ORDER) 1294 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); 1295 else if (pkt->entry_status & RF_INV_E_COUNT) 1296 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); 1297 else if (pkt->entry_status & RF_INV_E_PARAM) 1298 qla_printk(KERN_ERR, ha, 1299 "%s: Invalid Entry Parameter\n", __func__); 1300 else if (pkt->entry_status & RF_INV_E_TYPE) 1301 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); 1302 else if (pkt->entry_status & RF_BUSY) 1303 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); 1304 else 1305 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); 1306 #endif 1307 1308 /* Validate handle. */ 1309 if (pkt->handle < MAX_OUTSTANDING_COMMANDS) 1310 sp = ha->outstanding_cmds[pkt->handle]; 1311 else 1312 sp = NULL; 1313 1314 if (sp) { 1315 /* Free outstanding command slot. */ 1316 ha->outstanding_cmds[pkt->handle] = NULL; 1317 1318 /* Bad payload or header */ 1319 if (pkt->entry_status & 1320 (RF_INV_E_ORDER | RF_INV_E_COUNT | 1321 RF_INV_E_PARAM | RF_INV_E_TYPE)) { 1322 sp->cmd->result = DID_ERROR << 16; 1323 } else if (pkt->entry_status & RF_BUSY) { 1324 sp->cmd->result = DID_BUS_BUSY << 16; 1325 } else { 1326 sp->cmd->result = DID_ERROR << 16; 1327 } 1328 qla2x00_sp_compl(ha, sp); 1329 1330 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type == 1331 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7) { 1332 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", 1333 ha->host_no)); 1334 qla_printk(KERN_WARNING, ha, 1335 "Error entry - invalid handle\n"); 1336 1337 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1338 qla2xxx_wake_dpc(ha); 1339 } 1340 } 1341 1342 /** 1343 * qla2x00_ms_entry() - Process a Management Server entry. 1344 * @ha: SCSI driver HA context 1345 * @index: Response queue out pointer 1346 */ 1347 static void 1348 qla2x00_ms_entry(scsi_qla_host_t *ha, ms_iocb_entry_t *pkt) 1349 { 1350 srb_t *sp; 1351 1352 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n", 1353 __func__, ha->host_no, pkt, pkt->handle1)); 1354 1355 /* Validate handle. */ 1356 if (pkt->handle1 < MAX_OUTSTANDING_COMMANDS) 1357 sp = ha->outstanding_cmds[pkt->handle1]; 1358 else 1359 sp = NULL; 1360 1361 if (sp == NULL) { 1362 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n", 1363 ha->host_no)); 1364 qla_printk(KERN_WARNING, ha, "MS entry - invalid handle\n"); 1365 1366 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1367 return; 1368 } 1369 1370 CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->status); 1371 CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status; 1372 1373 /* Free outstanding command slot. */ 1374 ha->outstanding_cmds[pkt->handle1] = NULL; 1375 1376 qla2x00_sp_compl(ha, sp); 1377 } 1378 1379 1380 /** 1381 * qla24xx_mbx_completion() - Process mailbox command completions. 1382 * @ha: SCSI driver HA context 1383 * @mb0: Mailbox0 register 1384 */ 1385 static void 1386 qla24xx_mbx_completion(scsi_qla_host_t *ha, uint16_t mb0) 1387 { 1388 uint16_t cnt; 1389 uint16_t __iomem *wptr; 1390 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 1391 1392 /* Load return mailbox registers. */ 1393 ha->flags.mbox_int = 1; 1394 ha->mailbox_out[0] = mb0; 1395 wptr = (uint16_t __iomem *)®->mailbox1; 1396 1397 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 1398 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 1399 wptr++; 1400 } 1401 1402 if (ha->mcp) { 1403 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", 1404 __func__, ha->host_no, ha->mcp->mb[0])); 1405 } else { 1406 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", 1407 __func__, ha->host_no)); 1408 } 1409 } 1410 1411 /** 1412 * qla24xx_process_response_queue() - Process response queue entries. 1413 * @ha: SCSI driver HA context 1414 */ 1415 void 1416 qla24xx_process_response_queue(struct scsi_qla_host *ha) 1417 { 1418 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 1419 struct sts_entry_24xx *pkt; 1420 1421 if (!ha->flags.online) 1422 return; 1423 1424 while (ha->response_ring_ptr->signature != RESPONSE_PROCESSED) { 1425 pkt = (struct sts_entry_24xx *)ha->response_ring_ptr; 1426 1427 ha->rsp_ring_index++; 1428 if (ha->rsp_ring_index == ha->response_q_length) { 1429 ha->rsp_ring_index = 0; 1430 ha->response_ring_ptr = ha->response_ring; 1431 } else { 1432 ha->response_ring_ptr++; 1433 } 1434 1435 if (pkt->entry_status != 0) { 1436 DEBUG3(printk(KERN_INFO 1437 "scsi(%ld): Process error entry.\n", ha->host_no)); 1438 1439 qla2x00_error_entry(ha, (sts_entry_t *) pkt); 1440 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1441 wmb(); 1442 continue; 1443 } 1444 1445 switch (pkt->entry_type) { 1446 case STATUS_TYPE: 1447 qla2x00_status_entry(ha, pkt); 1448 break; 1449 case STATUS_CONT_TYPE: 1450 qla2x00_status_cont_entry(ha, (sts_cont_entry_t *)pkt); 1451 break; 1452 case MS_IOCB_TYPE: 1453 qla24xx_ms_entry(ha, (struct ct_entry_24xx *)pkt); 1454 break; 1455 case VP_RPT_ID_IOCB_TYPE: 1456 qla24xx_report_id_acquisition(ha, 1457 (struct vp_rpt_id_entry_24xx *)pkt); 1458 break; 1459 default: 1460 /* Type Not Supported. */ 1461 DEBUG4(printk(KERN_WARNING 1462 "scsi(%ld): Received unknown response pkt type %x " 1463 "entry status=%x.\n", 1464 ha->host_no, pkt->entry_type, pkt->entry_status)); 1465 break; 1466 } 1467 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1468 wmb(); 1469 } 1470 1471 /* Adjust ring index */ 1472 WRT_REG_DWORD(®->rsp_q_out, ha->rsp_ring_index); 1473 } 1474 1475 static void 1476 qla2xxx_check_risc_status(scsi_qla_host_t *ha) 1477 { 1478 int rval; 1479 uint32_t cnt; 1480 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 1481 1482 if (!IS_QLA25XX(ha)) 1483 return; 1484 1485 rval = QLA_SUCCESS; 1486 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 1487 RD_REG_DWORD(®->iobase_addr); 1488 WRT_REG_DWORD(®->iobase_window, 0x0001); 1489 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 1490 rval == QLA_SUCCESS; cnt--) { 1491 if (cnt) { 1492 WRT_REG_DWORD(®->iobase_window, 0x0001); 1493 udelay(10); 1494 } else 1495 rval = QLA_FUNCTION_TIMEOUT; 1496 } 1497 if (rval == QLA_SUCCESS) 1498 goto next_test; 1499 1500 WRT_REG_DWORD(®->iobase_window, 0x0003); 1501 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 1502 rval == QLA_SUCCESS; cnt--) { 1503 if (cnt) { 1504 WRT_REG_DWORD(®->iobase_window, 0x0003); 1505 udelay(10); 1506 } else 1507 rval = QLA_FUNCTION_TIMEOUT; 1508 } 1509 if (rval != QLA_SUCCESS) 1510 goto done; 1511 1512 next_test: 1513 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 1514 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n"); 1515 1516 done: 1517 WRT_REG_DWORD(®->iobase_window, 0x0000); 1518 RD_REG_DWORD(®->iobase_window); 1519 } 1520 1521 /** 1522 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 1523 * @irq: 1524 * @dev_id: SCSI driver HA context 1525 * 1526 * Called by system whenever the host adapter generates an interrupt. 1527 * 1528 * Returns handled flag. 1529 */ 1530 irqreturn_t 1531 qla24xx_intr_handler(int irq, void *dev_id) 1532 { 1533 scsi_qla_host_t *ha; 1534 struct device_reg_24xx __iomem *reg; 1535 int status; 1536 unsigned long flags; 1537 unsigned long iter; 1538 uint32_t stat; 1539 uint32_t hccr; 1540 uint16_t mb[4]; 1541 1542 ha = (scsi_qla_host_t *) dev_id; 1543 if (!ha) { 1544 printk(KERN_INFO 1545 "%s(): NULL host pointer\n", __func__); 1546 return IRQ_NONE; 1547 } 1548 1549 reg = &ha->iobase->isp24; 1550 status = 0; 1551 1552 spin_lock_irqsave(&ha->hardware_lock, flags); 1553 for (iter = 50; iter--; ) { 1554 stat = RD_REG_DWORD(®->host_status); 1555 if (stat & HSRX_RISC_PAUSED) { 1556 if (pci_channel_offline(ha->pdev)) 1557 break; 1558 1559 hccr = RD_REG_DWORD(®->hccr); 1560 1561 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " 1562 "Dumping firmware!\n", hccr); 1563 1564 qla2xxx_check_risc_status(ha); 1565 1566 ha->isp_ops->fw_dump(ha, 1); 1567 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1568 break; 1569 } else if ((stat & HSRX_RISC_INT) == 0) 1570 break; 1571 1572 switch (stat & 0xff) { 1573 case 0x1: 1574 case 0x2: 1575 case 0x10: 1576 case 0x11: 1577 qla24xx_mbx_completion(ha, MSW(stat)); 1578 status |= MBX_INTERRUPT; 1579 1580 break; 1581 case 0x12: 1582 mb[0] = MSW(stat); 1583 mb[1] = RD_REG_WORD(®->mailbox1); 1584 mb[2] = RD_REG_WORD(®->mailbox2); 1585 mb[3] = RD_REG_WORD(®->mailbox3); 1586 qla2x00_async_event(ha, mb); 1587 break; 1588 case 0x13: 1589 qla24xx_process_response_queue(ha); 1590 break; 1591 default: 1592 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 1593 "(%d).\n", 1594 ha->host_no, stat & 0xff)); 1595 break; 1596 } 1597 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 1598 RD_REG_DWORD_RELAXED(®->hccr); 1599 } 1600 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1601 1602 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 1603 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 1604 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 1605 complete(&ha->mbx_intr_comp); 1606 } 1607 1608 return IRQ_HANDLED; 1609 } 1610 1611 /** 1612 * qla24xx_ms_entry() - Process a Management Server entry. 1613 * @ha: SCSI driver HA context 1614 * @index: Response queue out pointer 1615 */ 1616 static void 1617 qla24xx_ms_entry(scsi_qla_host_t *ha, struct ct_entry_24xx *pkt) 1618 { 1619 srb_t *sp; 1620 1621 DEBUG3(printk("%s(%ld): pkt=%p pkthandle=%d.\n", 1622 __func__, ha->host_no, pkt, pkt->handle)); 1623 1624 DEBUG9(printk("%s: ct pkt dump:\n", __func__)); 1625 DEBUG9(qla2x00_dump_buffer((void *)pkt, sizeof(struct ct_entry_24xx))); 1626 1627 /* Validate handle. */ 1628 if (pkt->handle < MAX_OUTSTANDING_COMMANDS) 1629 sp = ha->outstanding_cmds[pkt->handle]; 1630 else 1631 sp = NULL; 1632 1633 if (sp == NULL) { 1634 DEBUG2(printk("scsi(%ld): MS entry - invalid handle\n", 1635 ha->host_no)); 1636 DEBUG10(printk("scsi(%ld): MS entry - invalid handle\n", 1637 ha->host_no)); 1638 qla_printk(KERN_WARNING, ha, "MS entry - invalid handle %d\n", 1639 pkt->handle); 1640 1641 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1642 return; 1643 } 1644 1645 CMD_COMPL_STATUS(sp->cmd) = le16_to_cpu(pkt->comp_status); 1646 CMD_ENTRY_STATUS(sp->cmd) = pkt->entry_status; 1647 1648 /* Free outstanding command slot. */ 1649 ha->outstanding_cmds[pkt->handle] = NULL; 1650 1651 qla2x00_sp_compl(ha, sp); 1652 } 1653 1654 static irqreturn_t 1655 qla24xx_msix_rsp_q(int irq, void *dev_id) 1656 { 1657 scsi_qla_host_t *ha; 1658 struct device_reg_24xx __iomem *reg; 1659 unsigned long flags; 1660 1661 ha = dev_id; 1662 reg = &ha->iobase->isp24; 1663 1664 spin_lock_irqsave(&ha->hardware_lock, flags); 1665 1666 qla24xx_process_response_queue(ha); 1667 1668 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 1669 1670 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1671 1672 return IRQ_HANDLED; 1673 } 1674 1675 static irqreturn_t 1676 qla24xx_msix_default(int irq, void *dev_id) 1677 { 1678 scsi_qla_host_t *ha; 1679 struct device_reg_24xx __iomem *reg; 1680 int status; 1681 unsigned long flags; 1682 uint32_t stat; 1683 uint32_t hccr; 1684 uint16_t mb[4]; 1685 1686 ha = dev_id; 1687 reg = &ha->iobase->isp24; 1688 status = 0; 1689 1690 spin_lock_irqsave(&ha->hardware_lock, flags); 1691 do { 1692 stat = RD_REG_DWORD(®->host_status); 1693 if (stat & HSRX_RISC_PAUSED) { 1694 if (pci_channel_offline(ha->pdev)) 1695 break; 1696 1697 hccr = RD_REG_DWORD(®->hccr); 1698 1699 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " 1700 "Dumping firmware!\n", hccr); 1701 1702 qla2xxx_check_risc_status(ha); 1703 1704 ha->isp_ops->fw_dump(ha, 1); 1705 set_bit(ISP_ABORT_NEEDED, &ha->dpc_flags); 1706 break; 1707 } else if ((stat & HSRX_RISC_INT) == 0) 1708 break; 1709 1710 switch (stat & 0xff) { 1711 case 0x1: 1712 case 0x2: 1713 case 0x10: 1714 case 0x11: 1715 qla24xx_mbx_completion(ha, MSW(stat)); 1716 status |= MBX_INTERRUPT; 1717 1718 break; 1719 case 0x12: 1720 mb[0] = MSW(stat); 1721 mb[1] = RD_REG_WORD(®->mailbox1); 1722 mb[2] = RD_REG_WORD(®->mailbox2); 1723 mb[3] = RD_REG_WORD(®->mailbox3); 1724 qla2x00_async_event(ha, mb); 1725 break; 1726 case 0x13: 1727 qla24xx_process_response_queue(ha); 1728 break; 1729 default: 1730 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 1731 "(%d).\n", 1732 ha->host_no, stat & 0xff)); 1733 break; 1734 } 1735 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 1736 } while (0); 1737 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1738 1739 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 1740 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 1741 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 1742 complete(&ha->mbx_intr_comp); 1743 } 1744 1745 return IRQ_HANDLED; 1746 } 1747 1748 /* Interrupt handling helpers. */ 1749 1750 struct qla_init_msix_entry { 1751 uint16_t entry; 1752 uint16_t index; 1753 const char *name; 1754 irq_handler_t handler; 1755 }; 1756 1757 static struct qla_init_msix_entry imsix_entries[QLA_MSIX_ENTRIES] = { 1758 { QLA_MSIX_DEFAULT, QLA_MIDX_DEFAULT, 1759 "qla2xxx (default)", qla24xx_msix_default }, 1760 1761 { QLA_MSIX_RSP_Q, QLA_MIDX_RSP_Q, 1762 "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 1763 }; 1764 1765 static void 1766 qla24xx_disable_msix(scsi_qla_host_t *ha) 1767 { 1768 int i; 1769 struct qla_msix_entry *qentry; 1770 1771 for (i = 0; i < QLA_MSIX_ENTRIES; i++) { 1772 qentry = &ha->msix_entries[imsix_entries[i].index]; 1773 if (qentry->have_irq) 1774 free_irq(qentry->msix_vector, ha); 1775 } 1776 pci_disable_msix(ha->pdev); 1777 } 1778 1779 static int 1780 qla24xx_enable_msix(scsi_qla_host_t *ha) 1781 { 1782 int i, ret; 1783 struct msix_entry entries[QLA_MSIX_ENTRIES]; 1784 struct qla_msix_entry *qentry; 1785 1786 for (i = 0; i < QLA_MSIX_ENTRIES; i++) 1787 entries[i].entry = imsix_entries[i].entry; 1788 1789 ret = pci_enable_msix(ha->pdev, entries, ARRAY_SIZE(entries)); 1790 if (ret) { 1791 qla_printk(KERN_WARNING, ha, 1792 "MSI-X: Failed to enable support -- %d/%d\n", 1793 QLA_MSIX_ENTRIES, ret); 1794 goto msix_out; 1795 } 1796 ha->flags.msix_enabled = 1; 1797 1798 for (i = 0; i < QLA_MSIX_ENTRIES; i++) { 1799 qentry = &ha->msix_entries[imsix_entries[i].index]; 1800 qentry->msix_vector = entries[i].vector; 1801 qentry->msix_entry = entries[i].entry; 1802 qentry->have_irq = 0; 1803 ret = request_irq(qentry->msix_vector, 1804 imsix_entries[i].handler, 0, imsix_entries[i].name, ha); 1805 if (ret) { 1806 qla_printk(KERN_WARNING, ha, 1807 "MSI-X: Unable to register handler -- %x/%d.\n", 1808 imsix_entries[i].index, ret); 1809 qla24xx_disable_msix(ha); 1810 goto msix_out; 1811 } 1812 qentry->have_irq = 1; 1813 } 1814 1815 msix_out: 1816 return ret; 1817 } 1818 1819 int 1820 qla2x00_request_irqs(scsi_qla_host_t *ha) 1821 { 1822 int ret; 1823 device_reg_t __iomem *reg = ha->iobase; 1824 unsigned long flags; 1825 1826 /* If possible, enable MSI-X. */ 1827 if (!IS_QLA2432(ha) && !IS_QLA2532(ha)) 1828 goto skip_msix; 1829 1830 if (IS_QLA2432(ha) && (ha->chip_revision < QLA_MSIX_CHIP_REV_24XX || 1831 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) { 1832 DEBUG2(qla_printk(KERN_WARNING, ha, 1833 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", 1834 ha->chip_revision, ha->fw_attributes)); 1835 1836 goto skip_msix; 1837 } 1838 1839 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 1840 (ha->pdev->subsystem_device == 0x7040 || 1841 ha->pdev->subsystem_device == 0x7041 || 1842 ha->pdev->subsystem_device == 0x1705)) { 1843 DEBUG2(qla_printk(KERN_WARNING, ha, 1844 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X, 0x%X).\n", 1845 ha->pdev->subsystem_vendor, 1846 ha->pdev->subsystem_device)); 1847 1848 goto skip_msi; 1849 } 1850 1851 ret = qla24xx_enable_msix(ha); 1852 if (!ret) { 1853 DEBUG2(qla_printk(KERN_INFO, ha, 1854 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision, 1855 ha->fw_attributes)); 1856 goto clear_risc_ints; 1857 } 1858 qla_printk(KERN_WARNING, ha, 1859 "MSI-X: Falling back-to INTa mode -- %d.\n", ret); 1860 skip_msix: 1861 1862 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha)) 1863 goto skip_msi; 1864 1865 ret = pci_enable_msi(ha->pdev); 1866 if (!ret) { 1867 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n")); 1868 ha->flags.msi_enabled = 1; 1869 } 1870 skip_msi: 1871 1872 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 1873 IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha); 1874 if (ret) { 1875 qla_printk(KERN_WARNING, ha, 1876 "Failed to reserve interrupt %d already in use.\n", 1877 ha->pdev->irq); 1878 goto fail; 1879 } 1880 ha->flags.inta_enabled = 1; 1881 ha->host->irq = ha->pdev->irq; 1882 clear_risc_ints: 1883 1884 ha->isp_ops->disable_intrs(ha); 1885 spin_lock_irqsave(&ha->hardware_lock, flags); 1886 if (IS_FWI2_CAPABLE(ha)) { 1887 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); 1888 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT); 1889 } else { 1890 WRT_REG_WORD(®->isp.semaphore, 0); 1891 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT); 1892 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT); 1893 } 1894 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1895 ha->isp_ops->enable_intrs(ha); 1896 1897 fail: 1898 return ret; 1899 } 1900 1901 void 1902 qla2x00_free_irqs(scsi_qla_host_t *ha) 1903 { 1904 1905 if (ha->flags.msix_enabled) 1906 qla24xx_disable_msix(ha); 1907 else if (ha->flags.inta_enabled) { 1908 free_irq(ha->host->irq, ha); 1909 pci_disable_msi(ha->pdev); 1910 } 1911 } 1912