1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2011 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 <linux/slab.h> 11 #include <scsi/scsi_tcq.h> 12 #include <scsi/scsi_bsg_fc.h> 13 #include <scsi/scsi_eh.h> 14 15 static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t); 16 static void qla2x00_process_completed_request(struct scsi_qla_host *, 17 struct req_que *, uint32_t); 18 static void qla2x00_status_entry(scsi_qla_host_t *, struct rsp_que *, void *); 19 static void qla2x00_status_cont_entry(struct rsp_que *, sts_cont_entry_t *); 20 static void qla2x00_error_entry(scsi_qla_host_t *, struct rsp_que *, 21 sts_entry_t *); 22 23 /** 24 * qla2100_intr_handler() - Process interrupts for the ISP2100 and ISP2200. 25 * @irq: 26 * @dev_id: SCSI driver HA context 27 * 28 * Called by system whenever the host adapter generates an interrupt. 29 * 30 * Returns handled flag. 31 */ 32 irqreturn_t 33 qla2100_intr_handler(int irq, void *dev_id) 34 { 35 scsi_qla_host_t *vha; 36 struct qla_hw_data *ha; 37 struct device_reg_2xxx __iomem *reg; 38 int status; 39 unsigned long iter; 40 uint16_t hccr; 41 uint16_t mb[4]; 42 struct rsp_que *rsp; 43 unsigned long flags; 44 45 rsp = (struct rsp_que *) dev_id; 46 if (!rsp) { 47 printk(KERN_INFO 48 "%s(): NULL response queue pointer\n", __func__); 49 return (IRQ_NONE); 50 } 51 52 ha = rsp->hw; 53 reg = &ha->iobase->isp; 54 status = 0; 55 56 spin_lock_irqsave(&ha->hardware_lock, flags); 57 vha = pci_get_drvdata(ha->pdev); 58 for (iter = 50; iter--; ) { 59 hccr = RD_REG_WORD(®->hccr); 60 if (hccr & HCCR_RISC_PAUSE) { 61 if (pci_channel_offline(ha->pdev)) 62 break; 63 64 /* 65 * Issue a "HARD" reset in order for the RISC interrupt 66 * bit to be cleared. Schedule a big hammmer to get 67 * out of the RISC PAUSED state. 68 */ 69 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 70 RD_REG_WORD(®->hccr); 71 72 ha->isp_ops->fw_dump(vha, 1); 73 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 74 break; 75 } else if ((RD_REG_WORD(®->istatus) & ISR_RISC_INT) == 0) 76 break; 77 78 if (RD_REG_WORD(®->semaphore) & BIT_0) { 79 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 80 RD_REG_WORD(®->hccr); 81 82 /* Get mailbox data. */ 83 mb[0] = RD_MAILBOX_REG(ha, reg, 0); 84 if (mb[0] > 0x3fff && mb[0] < 0x8000) { 85 qla2x00_mbx_completion(vha, mb[0]); 86 status |= MBX_INTERRUPT; 87 } else if (mb[0] > 0x7fff && mb[0] < 0xc000) { 88 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 89 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 90 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 91 qla2x00_async_event(vha, rsp, mb); 92 } else { 93 /*EMPTY*/ 94 DEBUG2(printk("scsi(%ld): Unrecognized " 95 "interrupt type (%d).\n", 96 vha->host_no, mb[0])); 97 } 98 /* Release mailbox registers. */ 99 WRT_REG_WORD(®->semaphore, 0); 100 RD_REG_WORD(®->semaphore); 101 } else { 102 qla2x00_process_response_queue(rsp); 103 104 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 105 RD_REG_WORD(®->hccr); 106 } 107 } 108 spin_unlock_irqrestore(&ha->hardware_lock, flags); 109 110 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 111 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 112 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 113 complete(&ha->mbx_intr_comp); 114 } 115 116 return (IRQ_HANDLED); 117 } 118 119 /** 120 * qla2300_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 121 * @irq: 122 * @dev_id: SCSI driver HA context 123 * 124 * Called by system whenever the host adapter generates an interrupt. 125 * 126 * Returns handled flag. 127 */ 128 irqreturn_t 129 qla2300_intr_handler(int irq, void *dev_id) 130 { 131 scsi_qla_host_t *vha; 132 struct device_reg_2xxx __iomem *reg; 133 int status; 134 unsigned long iter; 135 uint32_t stat; 136 uint16_t hccr; 137 uint16_t mb[4]; 138 struct rsp_que *rsp; 139 struct qla_hw_data *ha; 140 unsigned long flags; 141 142 rsp = (struct rsp_que *) dev_id; 143 if (!rsp) { 144 printk(KERN_INFO 145 "%s(): NULL response queue pointer\n", __func__); 146 return (IRQ_NONE); 147 } 148 149 ha = rsp->hw; 150 reg = &ha->iobase->isp; 151 status = 0; 152 153 spin_lock_irqsave(&ha->hardware_lock, flags); 154 vha = pci_get_drvdata(ha->pdev); 155 for (iter = 50; iter--; ) { 156 stat = RD_REG_DWORD(®->u.isp2300.host_status); 157 if (stat & HSR_RISC_PAUSED) { 158 if (unlikely(pci_channel_offline(ha->pdev))) 159 break; 160 161 hccr = RD_REG_WORD(®->hccr); 162 if (hccr & (BIT_15 | BIT_13 | BIT_11 | BIT_8)) 163 qla_printk(KERN_INFO, ha, "Parity error -- " 164 "HCCR=%x, Dumping firmware!\n", hccr); 165 else 166 qla_printk(KERN_INFO, ha, "RISC paused -- " 167 "HCCR=%x, Dumping firmware!\n", hccr); 168 169 /* 170 * Issue a "HARD" reset in order for the RISC 171 * interrupt bit to be cleared. Schedule a big 172 * hammmer to get out of the RISC PAUSED state. 173 */ 174 WRT_REG_WORD(®->hccr, HCCR_RESET_RISC); 175 RD_REG_WORD(®->hccr); 176 177 ha->isp_ops->fw_dump(vha, 1); 178 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 179 break; 180 } else if ((stat & HSR_RISC_INT) == 0) 181 break; 182 183 switch (stat & 0xff) { 184 case 0x1: 185 case 0x2: 186 case 0x10: 187 case 0x11: 188 qla2x00_mbx_completion(vha, MSW(stat)); 189 status |= MBX_INTERRUPT; 190 191 /* Release mailbox registers. */ 192 WRT_REG_WORD(®->semaphore, 0); 193 break; 194 case 0x12: 195 mb[0] = MSW(stat); 196 mb[1] = RD_MAILBOX_REG(ha, reg, 1); 197 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 198 mb[3] = RD_MAILBOX_REG(ha, reg, 3); 199 qla2x00_async_event(vha, rsp, mb); 200 break; 201 case 0x13: 202 qla2x00_process_response_queue(rsp); 203 break; 204 case 0x15: 205 mb[0] = MBA_CMPLT_1_16BIT; 206 mb[1] = MSW(stat); 207 qla2x00_async_event(vha, rsp, mb); 208 break; 209 case 0x16: 210 mb[0] = MBA_SCSI_COMPLETION; 211 mb[1] = MSW(stat); 212 mb[2] = RD_MAILBOX_REG(ha, reg, 2); 213 qla2x00_async_event(vha, rsp, mb); 214 break; 215 default: 216 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 217 "(%d).\n", 218 vha->host_no, stat & 0xff)); 219 break; 220 } 221 WRT_REG_WORD(®->hccr, HCCR_CLR_RISC_INT); 222 RD_REG_WORD_RELAXED(®->hccr); 223 } 224 spin_unlock_irqrestore(&ha->hardware_lock, flags); 225 226 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 227 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 228 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 229 complete(&ha->mbx_intr_comp); 230 } 231 232 return (IRQ_HANDLED); 233 } 234 235 /** 236 * qla2x00_mbx_completion() - Process mailbox command completions. 237 * @ha: SCSI driver HA context 238 * @mb0: Mailbox0 register 239 */ 240 static void 241 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 242 { 243 uint16_t cnt; 244 uint16_t __iomem *wptr; 245 struct qla_hw_data *ha = vha->hw; 246 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 247 248 /* Load return mailbox registers. */ 249 ha->flags.mbox_int = 1; 250 ha->mailbox_out[0] = mb0; 251 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1); 252 253 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 254 if (IS_QLA2200(ha) && cnt == 8) 255 wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8); 256 if (cnt == 4 || cnt == 5) 257 ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr); 258 else 259 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 260 261 wptr++; 262 } 263 264 if (ha->mcp) { 265 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", 266 __func__, vha->host_no, ha->mcp->mb[0])); 267 } else { 268 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", 269 __func__, vha->host_no)); 270 } 271 } 272 273 static void 274 qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr) 275 { 276 static char *event[] = 277 { "Complete", "Request Notification", "Time Extension" }; 278 int rval; 279 struct device_reg_24xx __iomem *reg24 = &vha->hw->iobase->isp24; 280 uint16_t __iomem *wptr; 281 uint16_t cnt, timeout, mb[QLA_IDC_ACK_REGS]; 282 283 /* Seed data -- mailbox1 -> mailbox7. */ 284 wptr = (uint16_t __iomem *)®24->mailbox1; 285 for (cnt = 0; cnt < QLA_IDC_ACK_REGS; cnt++, wptr++) 286 mb[cnt] = RD_REG_WORD(wptr); 287 288 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- " 289 "%04x %04x %04x %04x %04x %04x %04x.\n", vha->host_no, 290 event[aen & 0xff], 291 mb[0], mb[1], mb[2], mb[3], mb[4], mb[5], mb[6])); 292 293 /* Acknowledgement needed? [Notify && non-zero timeout]. */ 294 timeout = (descr >> 8) & 0xf; 295 if (aen != MBA_IDC_NOTIFY || !timeout) 296 return; 297 298 DEBUG2(printk("scsi(%ld): Inter-Driver Commucation %s -- " 299 "ACK timeout=%d.\n", vha->host_no, event[aen & 0xff], timeout)); 300 301 rval = qla2x00_post_idc_ack_work(vha, mb); 302 if (rval != QLA_SUCCESS) 303 qla_printk(KERN_WARNING, vha->hw, 304 "IDC failed to post ACK.\n"); 305 } 306 307 /** 308 * qla2x00_async_event() - Process aynchronous events. 309 * @ha: SCSI driver HA context 310 * @mb: Mailbox registers (0 - 3) 311 */ 312 void 313 qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb) 314 { 315 #define LS_UNKNOWN 2 316 static char *link_speeds[] = { "1", "2", "?", "4", "8", "10" }; 317 char *link_speed; 318 uint16_t handle_cnt; 319 uint16_t cnt, mbx; 320 uint32_t handles[5]; 321 struct qla_hw_data *ha = vha->hw; 322 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 323 struct device_reg_24xx __iomem *reg24 = &ha->iobase->isp24; 324 struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82; 325 uint32_t rscn_entry, host_pid; 326 uint8_t rscn_queue_index; 327 unsigned long flags; 328 329 /* Setup to process RIO completion. */ 330 handle_cnt = 0; 331 if (IS_QLA8XXX_TYPE(ha)) 332 goto skip_rio; 333 switch (mb[0]) { 334 case MBA_SCSI_COMPLETION: 335 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 336 handle_cnt = 1; 337 break; 338 case MBA_CMPLT_1_16BIT: 339 handles[0] = mb[1]; 340 handle_cnt = 1; 341 mb[0] = MBA_SCSI_COMPLETION; 342 break; 343 case MBA_CMPLT_2_16BIT: 344 handles[0] = mb[1]; 345 handles[1] = mb[2]; 346 handle_cnt = 2; 347 mb[0] = MBA_SCSI_COMPLETION; 348 break; 349 case MBA_CMPLT_3_16BIT: 350 handles[0] = mb[1]; 351 handles[1] = mb[2]; 352 handles[2] = mb[3]; 353 handle_cnt = 3; 354 mb[0] = MBA_SCSI_COMPLETION; 355 break; 356 case MBA_CMPLT_4_16BIT: 357 handles[0] = mb[1]; 358 handles[1] = mb[2]; 359 handles[2] = mb[3]; 360 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 361 handle_cnt = 4; 362 mb[0] = MBA_SCSI_COMPLETION; 363 break; 364 case MBA_CMPLT_5_16BIT: 365 handles[0] = mb[1]; 366 handles[1] = mb[2]; 367 handles[2] = mb[3]; 368 handles[3] = (uint32_t)RD_MAILBOX_REG(ha, reg, 6); 369 handles[4] = (uint32_t)RD_MAILBOX_REG(ha, reg, 7); 370 handle_cnt = 5; 371 mb[0] = MBA_SCSI_COMPLETION; 372 break; 373 case MBA_CMPLT_2_32BIT: 374 handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1])); 375 handles[1] = le32_to_cpu( 376 ((uint32_t)(RD_MAILBOX_REG(ha, reg, 7) << 16)) | 377 RD_MAILBOX_REG(ha, reg, 6)); 378 handle_cnt = 2; 379 mb[0] = MBA_SCSI_COMPLETION; 380 break; 381 default: 382 break; 383 } 384 skip_rio: 385 switch (mb[0]) { 386 case MBA_SCSI_COMPLETION: /* Fast Post */ 387 if (!vha->flags.online) 388 break; 389 390 for (cnt = 0; cnt < handle_cnt; cnt++) 391 qla2x00_process_completed_request(vha, rsp->req, 392 handles[cnt]); 393 break; 394 395 case MBA_RESET: /* Reset */ 396 DEBUG2(printk("scsi(%ld): Asynchronous RESET.\n", 397 vha->host_no)); 398 399 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 400 break; 401 402 case MBA_SYSTEM_ERR: /* System Error */ 403 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox7) : 0; 404 qla_printk(KERN_INFO, ha, 405 "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh " 406 "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); 407 408 ha->isp_ops->fw_dump(vha, 1); 409 410 if (IS_FWI2_CAPABLE(ha)) { 411 if (mb[1] == 0 && mb[2] == 0) { 412 qla_printk(KERN_ERR, ha, 413 "Unrecoverable Hardware Error: adapter " 414 "marked OFFLINE!\n"); 415 vha->flags.online = 0; 416 } else { 417 /* Check to see if MPI timeout occurred */ 418 if ((mbx & MBX_3) && (ha->flags.port0)) 419 set_bit(MPI_RESET_NEEDED, 420 &vha->dpc_flags); 421 422 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 423 } 424 } else if (mb[1] == 0) { 425 qla_printk(KERN_INFO, ha, 426 "Unrecoverable Hardware Error: adapter marked " 427 "OFFLINE!\n"); 428 vha->flags.online = 0; 429 } else 430 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 431 break; 432 433 case MBA_REQ_TRANSFER_ERR: /* Request Transfer Error */ 434 DEBUG2(printk("scsi(%ld): ISP Request Transfer Error (%x).\n", 435 vha->host_no, mb[1])); 436 qla_printk(KERN_WARNING, ha, 437 "ISP Request Transfer Error (%x).\n", mb[1]); 438 439 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 440 break; 441 442 case MBA_RSP_TRANSFER_ERR: /* Response Transfer Error */ 443 DEBUG2(printk("scsi(%ld): ISP Response Transfer Error.\n", 444 vha->host_no)); 445 qla_printk(KERN_WARNING, ha, "ISP Response Transfer Error.\n"); 446 447 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 448 break; 449 450 case MBA_WAKEUP_THRES: /* Request Queue Wake-up */ 451 DEBUG2(printk("scsi(%ld): Asynchronous WAKEUP_THRES.\n", 452 vha->host_no)); 453 break; 454 455 case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ 456 DEBUG2(printk("scsi(%ld): LIP occurred (%x).\n", vha->host_no, 457 mb[1])); 458 qla_printk(KERN_INFO, ha, "LIP occurred (%x).\n", mb[1]); 459 460 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 461 atomic_set(&vha->loop_state, LOOP_DOWN); 462 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 463 qla2x00_mark_all_devices_lost(vha, 1); 464 } 465 466 if (vha->vp_idx) { 467 atomic_set(&vha->vp_state, VP_FAILED); 468 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 469 } 470 471 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 472 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 473 474 vha->flags.management_server_logged_in = 0; 475 qla2x00_post_aen_work(vha, FCH_EVT_LIP, mb[1]); 476 break; 477 478 case MBA_LOOP_UP: /* Loop Up Event */ 479 if (IS_QLA2100(ha) || IS_QLA2200(ha)) { 480 link_speed = link_speeds[0]; 481 ha->link_data_rate = PORT_SPEED_1GB; 482 } else { 483 link_speed = link_speeds[LS_UNKNOWN]; 484 if (mb[1] < 5) 485 link_speed = link_speeds[mb[1]]; 486 else if (mb[1] == 0x13) 487 link_speed = link_speeds[5]; 488 ha->link_data_rate = mb[1]; 489 } 490 491 DEBUG2(printk("scsi(%ld): Asynchronous LOOP UP (%s Gbps).\n", 492 vha->host_no, link_speed)); 493 qla_printk(KERN_INFO, ha, "LOOP UP detected (%s Gbps).\n", 494 link_speed); 495 496 vha->flags.management_server_logged_in = 0; 497 qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate); 498 break; 499 500 case MBA_LOOP_DOWN: /* Loop Down Event */ 501 mbx = IS_QLA81XX(ha) ? RD_REG_WORD(®24->mailbox4) : 0; 502 mbx = IS_QLA82XX(ha) ? RD_REG_WORD(®82->mailbox_out[4]) : mbx; 503 DEBUG2(printk("scsi(%ld): Asynchronous LOOP DOWN " 504 "(%x %x %x %x).\n", vha->host_no, mb[1], mb[2], mb[3], 505 mbx)); 506 qla_printk(KERN_INFO, ha, 507 "LOOP DOWN detected (%x %x %x %x).\n", mb[1], mb[2], mb[3], 508 mbx); 509 510 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 511 atomic_set(&vha->loop_state, LOOP_DOWN); 512 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 513 vha->device_flags |= DFLG_NO_CABLE; 514 qla2x00_mark_all_devices_lost(vha, 1); 515 } 516 517 if (vha->vp_idx) { 518 atomic_set(&vha->vp_state, VP_FAILED); 519 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 520 } 521 522 vha->flags.management_server_logged_in = 0; 523 ha->link_data_rate = PORT_SPEED_UNKNOWN; 524 qla2x00_post_aen_work(vha, FCH_EVT_LINKDOWN, 0); 525 break; 526 527 case MBA_LIP_RESET: /* LIP reset occurred */ 528 DEBUG2(printk("scsi(%ld): Asynchronous LIP RESET (%x).\n", 529 vha->host_no, mb[1])); 530 qla_printk(KERN_INFO, ha, 531 "LIP reset occurred (%x).\n", mb[1]); 532 533 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 534 atomic_set(&vha->loop_state, LOOP_DOWN); 535 atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); 536 qla2x00_mark_all_devices_lost(vha, 1); 537 } 538 539 if (vha->vp_idx) { 540 atomic_set(&vha->vp_state, VP_FAILED); 541 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 542 } 543 544 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 545 546 ha->operating_mode = LOOP; 547 vha->flags.management_server_logged_in = 0; 548 qla2x00_post_aen_work(vha, FCH_EVT_LIPRESET, mb[1]); 549 break; 550 551 /* case MBA_DCBX_COMPLETE: */ 552 case MBA_POINT_TO_POINT: /* Point-to-Point */ 553 if (IS_QLA2100(ha)) 554 break; 555 556 if (IS_QLA8XXX_TYPE(ha)) { 557 DEBUG2(printk("scsi(%ld): DCBX Completed -- %04x %04x " 558 "%04x\n", vha->host_no, mb[1], mb[2], mb[3])); 559 if (ha->notify_dcbx_comp) 560 complete(&ha->dcbx_comp); 561 562 } else 563 DEBUG2(printk("scsi(%ld): Asynchronous P2P MODE " 564 "received.\n", vha->host_no)); 565 566 /* 567 * Until there's a transition from loop down to loop up, treat 568 * this as loop down only. 569 */ 570 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 571 atomic_set(&vha->loop_state, LOOP_DOWN); 572 if (!atomic_read(&vha->loop_down_timer)) 573 atomic_set(&vha->loop_down_timer, 574 LOOP_DOWN_TIME); 575 qla2x00_mark_all_devices_lost(vha, 1); 576 } 577 578 if (vha->vp_idx) { 579 atomic_set(&vha->vp_state, VP_FAILED); 580 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 581 } 582 583 if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags))) 584 set_bit(RESET_MARKER_NEEDED, &vha->dpc_flags); 585 586 set_bit(REGISTER_FC4_NEEDED, &vha->dpc_flags); 587 set_bit(REGISTER_FDMI_NEEDED, &vha->dpc_flags); 588 589 ha->flags.gpsc_supported = 1; 590 vha->flags.management_server_logged_in = 0; 591 break; 592 593 case MBA_CHG_IN_CONNECTION: /* Change in connection mode */ 594 if (IS_QLA2100(ha)) 595 break; 596 597 DEBUG2(printk("scsi(%ld): Asynchronous Change In Connection " 598 "received.\n", 599 vha->host_no)); 600 qla_printk(KERN_INFO, ha, 601 "Configuration change detected: value=%x.\n", mb[1]); 602 603 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 604 atomic_set(&vha->loop_state, LOOP_DOWN); 605 if (!atomic_read(&vha->loop_down_timer)) 606 atomic_set(&vha->loop_down_timer, 607 LOOP_DOWN_TIME); 608 qla2x00_mark_all_devices_lost(vha, 1); 609 } 610 611 if (vha->vp_idx) { 612 atomic_set(&vha->vp_state, VP_FAILED); 613 fc_vport_set_state(vha->fc_vport, FC_VPORT_FAILED); 614 } 615 616 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 617 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 618 break; 619 620 case MBA_PORT_UPDATE: /* Port database update */ 621 /* 622 * Handle only global and vn-port update events 623 * 624 * Relevant inputs: 625 * mb[1] = N_Port handle of changed port 626 * OR 0xffff for global event 627 * mb[2] = New login state 628 * 7 = Port logged out 629 * mb[3] = LSB is vp_idx, 0xff = all vps 630 * 631 * Skip processing if: 632 * Event is global, vp_idx is NOT all vps, 633 * vp_idx does not match 634 * Event is not global, vp_idx does not match 635 */ 636 if (IS_QLA2XXX_MIDTYPE(ha) && 637 ((mb[1] == 0xffff && (mb[3] & 0xff) != 0xff) || 638 (mb[1] != 0xffff)) && vha->vp_idx != (mb[3] & 0xff)) 639 break; 640 641 /* Global event -- port logout or port unavailable. */ 642 if (mb[1] == 0xffff && mb[2] == 0x7) { 643 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", 644 vha->host_no)); 645 DEBUG(printk(KERN_INFO 646 "scsi(%ld): Port unavailable %04x %04x %04x.\n", 647 vha->host_no, mb[1], mb[2], mb[3])); 648 649 if (atomic_read(&vha->loop_state) != LOOP_DOWN) { 650 atomic_set(&vha->loop_state, LOOP_DOWN); 651 atomic_set(&vha->loop_down_timer, 652 LOOP_DOWN_TIME); 653 vha->device_flags |= DFLG_NO_CABLE; 654 qla2x00_mark_all_devices_lost(vha, 1); 655 } 656 657 if (vha->vp_idx) { 658 atomic_set(&vha->vp_state, VP_FAILED); 659 fc_vport_set_state(vha->fc_vport, 660 FC_VPORT_FAILED); 661 qla2x00_mark_all_devices_lost(vha, 1); 662 } 663 664 vha->flags.management_server_logged_in = 0; 665 ha->link_data_rate = PORT_SPEED_UNKNOWN; 666 break; 667 } 668 669 /* 670 * If PORT UPDATE is global (received LIP_OCCURRED/LIP_RESET 671 * event etc. earlier indicating loop is down) then process 672 * it. Otherwise ignore it and Wait for RSCN to come in. 673 */ 674 atomic_set(&vha->loop_down_timer, 0); 675 if (atomic_read(&vha->loop_state) != LOOP_DOWN && 676 atomic_read(&vha->loop_state) != LOOP_DEAD) { 677 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE " 678 "ignored %04x/%04x/%04x.\n", vha->host_no, mb[1], 679 mb[2], mb[3])); 680 break; 681 } 682 683 DEBUG2(printk("scsi(%ld): Asynchronous PORT UPDATE.\n", 684 vha->host_no)); 685 DEBUG(printk(KERN_INFO 686 "scsi(%ld): Port database changed %04x %04x %04x.\n", 687 vha->host_no, mb[1], mb[2], mb[3])); 688 689 /* 690 * Mark all devices as missing so we will login again. 691 */ 692 atomic_set(&vha->loop_state, LOOP_UP); 693 694 qla2x00_mark_all_devices_lost(vha, 1); 695 696 vha->flags.rscn_queue_overflow = 1; 697 698 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 699 set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); 700 break; 701 702 case MBA_RSCN_UPDATE: /* State Change Registration */ 703 /* Check if the Vport has issued a SCR */ 704 if (vha->vp_idx && test_bit(VP_SCR_NEEDED, &vha->vp_flags)) 705 break; 706 /* Only handle SCNs for our Vport index. */ 707 if (ha->flags.npiv_supported && vha->vp_idx != (mb[3] & 0xff)) 708 break; 709 710 DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n", 711 vha->host_no)); 712 DEBUG(printk(KERN_INFO 713 "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n", 714 vha->host_no, mb[1], mb[2], mb[3])); 715 716 rscn_entry = ((mb[1] & 0xff) << 16) | mb[2]; 717 host_pid = (vha->d_id.b.domain << 16) | (vha->d_id.b.area << 8) 718 | vha->d_id.b.al_pa; 719 if (rscn_entry == host_pid) { 720 DEBUG(printk(KERN_INFO 721 "scsi(%ld): Ignoring RSCN update to local host " 722 "port ID (%06x)\n", 723 vha->host_no, host_pid)); 724 break; 725 } 726 727 /* Ignore reserved bits from RSCN-payload. */ 728 rscn_entry = ((mb[1] & 0x3ff) << 16) | mb[2]; 729 rscn_queue_index = vha->rscn_in_ptr + 1; 730 if (rscn_queue_index == MAX_RSCN_COUNT) 731 rscn_queue_index = 0; 732 if (rscn_queue_index != vha->rscn_out_ptr) { 733 vha->rscn_queue[vha->rscn_in_ptr] = rscn_entry; 734 vha->rscn_in_ptr = rscn_queue_index; 735 } else { 736 vha->flags.rscn_queue_overflow = 1; 737 } 738 739 atomic_set(&vha->loop_state, LOOP_UPDATE); 740 atomic_set(&vha->loop_down_timer, 0); 741 vha->flags.management_server_logged_in = 0; 742 743 set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); 744 set_bit(RSCN_UPDATE, &vha->dpc_flags); 745 qla2x00_post_aen_work(vha, FCH_EVT_RSCN, rscn_entry); 746 break; 747 748 /* case MBA_RIO_RESPONSE: */ 749 case MBA_ZIO_RESPONSE: 750 DEBUG3(printk("scsi(%ld): [R|Z]IO update completion.\n", 751 vha->host_no)); 752 753 if (IS_FWI2_CAPABLE(ha)) 754 qla24xx_process_response_queue(vha, rsp); 755 else 756 qla2x00_process_response_queue(rsp); 757 break; 758 759 case MBA_DISCARD_RND_FRAME: 760 DEBUG2(printk("scsi(%ld): Discard RND Frame -- %04x %04x " 761 "%04x.\n", vha->host_no, mb[1], mb[2], mb[3])); 762 break; 763 764 case MBA_TRACE_NOTIFICATION: 765 DEBUG2(printk("scsi(%ld): Trace Notification -- %04x %04x.\n", 766 vha->host_no, mb[1], mb[2])); 767 break; 768 769 case MBA_ISP84XX_ALERT: 770 DEBUG2(printk("scsi(%ld): ISP84XX Alert Notification -- " 771 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 772 773 spin_lock_irqsave(&ha->cs84xx->access_lock, flags); 774 switch (mb[1]) { 775 case A84_PANIC_RECOVERY: 776 qla_printk(KERN_INFO, ha, "Alert 84XX: panic recovery " 777 "%04x %04x\n", mb[2], mb[3]); 778 break; 779 case A84_OP_LOGIN_COMPLETE: 780 ha->cs84xx->op_fw_version = mb[3] << 16 | mb[2]; 781 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:" 782 "firmware version %x\n", ha->cs84xx->op_fw_version)); 783 break; 784 case A84_DIAG_LOGIN_COMPLETE: 785 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 786 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX:" 787 "diagnostic firmware version %x\n", 788 ha->cs84xx->diag_fw_version)); 789 break; 790 case A84_GOLD_LOGIN_COMPLETE: 791 ha->cs84xx->diag_fw_version = mb[3] << 16 | mb[2]; 792 ha->cs84xx->fw_update = 1; 793 DEBUG2(qla_printk(KERN_INFO, ha, "Alert 84XX: gold " 794 "firmware version %x\n", 795 ha->cs84xx->gold_fw_version)); 796 break; 797 default: 798 qla_printk(KERN_ERR, ha, 799 "Alert 84xx: Invalid Alert %04x %04x %04x\n", 800 mb[1], mb[2], mb[3]); 801 } 802 spin_unlock_irqrestore(&ha->cs84xx->access_lock, flags); 803 break; 804 case MBA_DCBX_START: 805 DEBUG2(printk("scsi(%ld): DCBX Started -- %04x %04x %04x\n", 806 vha->host_no, mb[1], mb[2], mb[3])); 807 break; 808 case MBA_DCBX_PARAM_UPDATE: 809 DEBUG2(printk("scsi(%ld): DCBX Parameters Updated -- " 810 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 811 break; 812 case MBA_FCF_CONF_ERR: 813 DEBUG2(printk("scsi(%ld): FCF Configuration Error -- " 814 "%04x %04x %04x\n", vha->host_no, mb[1], mb[2], mb[3])); 815 break; 816 case MBA_IDC_COMPLETE: 817 case MBA_IDC_NOTIFY: 818 case MBA_IDC_TIME_EXT: 819 qla81xx_idc_event(vha, mb[0], mb[1]); 820 break; 821 } 822 823 if (!vha->vp_idx && ha->num_vhosts) 824 qla2x00_alert_all_vps(rsp, mb); 825 } 826 827 /** 828 * qla2x00_process_completed_request() - Process a Fast Post response. 829 * @ha: SCSI driver HA context 830 * @index: SRB index 831 */ 832 static void 833 qla2x00_process_completed_request(struct scsi_qla_host *vha, 834 struct req_que *req, uint32_t index) 835 { 836 srb_t *sp; 837 struct qla_hw_data *ha = vha->hw; 838 839 /* Validate handle. */ 840 if (index >= MAX_OUTSTANDING_COMMANDS) { 841 DEBUG2(printk("scsi(%ld): Invalid SCSI completion handle %d.\n", 842 vha->host_no, index)); 843 qla_printk(KERN_WARNING, ha, 844 "Invalid SCSI completion handle %d.\n", index); 845 846 if (IS_QLA82XX(ha)) 847 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 848 else 849 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 850 return; 851 } 852 853 sp = req->outstanding_cmds[index]; 854 if (sp) { 855 /* Free outstanding command slot. */ 856 req->outstanding_cmds[index] = NULL; 857 858 /* Save ISP completion status */ 859 sp->cmd->result = DID_OK << 16; 860 qla2x00_sp_compl(ha, sp); 861 } else { 862 DEBUG2(printk("scsi(%ld) Req:%d: Invalid ISP SCSI completion" 863 " handle(0x%x)\n", vha->host_no, req->id, index)); 864 qla_printk(KERN_WARNING, ha, 865 "Invalid ISP SCSI completion handle\n"); 866 867 if (IS_QLA82XX(ha)) 868 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 869 else 870 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 871 } 872 } 873 874 static srb_t * 875 qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, 876 struct req_que *req, void *iocb) 877 { 878 struct qla_hw_data *ha = vha->hw; 879 sts_entry_t *pkt = iocb; 880 srb_t *sp = NULL; 881 uint16_t index; 882 883 index = LSW(pkt->handle); 884 if (index >= MAX_OUTSTANDING_COMMANDS) { 885 qla_printk(KERN_WARNING, ha, 886 "%s: Invalid completion handle (%x).\n", func, index); 887 if (IS_QLA82XX(ha)) 888 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 889 else 890 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 891 goto done; 892 } 893 sp = req->outstanding_cmds[index]; 894 if (!sp) { 895 qla_printk(KERN_WARNING, ha, 896 "%s: Invalid completion handle (%x) -- timed-out.\n", func, 897 index); 898 return sp; 899 } 900 if (sp->handle != index) { 901 qla_printk(KERN_WARNING, ha, 902 "%s: SRB handle (%x) mismatch %x.\n", func, sp->handle, 903 index); 904 return NULL; 905 } 906 907 req->outstanding_cmds[index] = NULL; 908 909 done: 910 return sp; 911 } 912 913 static void 914 qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 915 struct mbx_entry *mbx) 916 { 917 const char func[] = "MBX-IOCB"; 918 const char *type; 919 fc_port_t *fcport; 920 srb_t *sp; 921 struct srb_iocb *lio; 922 struct srb_ctx *ctx; 923 uint16_t *data; 924 uint16_t status; 925 926 sp = qla2x00_get_sp_from_handle(vha, func, req, mbx); 927 if (!sp) 928 return; 929 930 ctx = sp->ctx; 931 lio = ctx->u.iocb_cmd; 932 type = ctx->name; 933 fcport = sp->fcport; 934 data = lio->u.logio.data; 935 936 data[0] = MBS_COMMAND_ERROR; 937 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 938 QLA_LOGIO_LOGIN_RETRIED : 0; 939 if (mbx->entry_status) { 940 DEBUG2(printk(KERN_WARNING 941 "scsi(%ld:%x): Async-%s error entry - portid=%02x%02x%02x " 942 "entry-status=%x status=%x state-flag=%x " 943 "status-flags=%x.\n", 944 fcport->vha->host_no, sp->handle, type, 945 fcport->d_id.b.domain, fcport->d_id.b.area, 946 fcport->d_id.b.al_pa, mbx->entry_status, 947 le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags), 948 le16_to_cpu(mbx->status_flags))); 949 950 DEBUG2(qla2x00_dump_buffer((uint8_t *)mbx, sizeof(*mbx))); 951 952 goto logio_done; 953 } 954 955 status = le16_to_cpu(mbx->status); 956 if (status == 0x30 && ctx->type == SRB_LOGIN_CMD && 957 le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) 958 status = 0; 959 if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) { 960 DEBUG2(printk(KERN_DEBUG 961 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x " 962 "mbx1=%x.\n", 963 fcport->vha->host_no, sp->handle, type, 964 fcport->d_id.b.domain, fcport->d_id.b.area, 965 fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1))); 966 967 data[0] = MBS_COMMAND_COMPLETE; 968 if (ctx->type == SRB_LOGIN_CMD) { 969 fcport->port_type = FCT_TARGET; 970 if (le16_to_cpu(mbx->mb1) & BIT_0) 971 fcport->port_type = FCT_INITIATOR; 972 else if (le16_to_cpu(mbx->mb1) & BIT_1) 973 fcport->flags |= FCF_FCP2_DEVICE; 974 } 975 goto logio_done; 976 } 977 978 data[0] = le16_to_cpu(mbx->mb0); 979 switch (data[0]) { 980 case MBS_PORT_ID_USED: 981 data[1] = le16_to_cpu(mbx->mb1); 982 break; 983 case MBS_LOOP_ID_USED: 984 break; 985 default: 986 data[0] = MBS_COMMAND_ERROR; 987 break; 988 } 989 990 DEBUG2(printk(KERN_WARNING 991 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x status=%x " 992 "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", 993 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain, 994 fcport->d_id.b.area, fcport->d_id.b.al_pa, status, 995 le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1), 996 le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6), 997 le16_to_cpu(mbx->mb7))); 998 999 logio_done: 1000 lio->done(sp); 1001 } 1002 1003 static void 1004 qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1005 sts_entry_t *pkt, int iocb_type) 1006 { 1007 const char func[] = "CT_IOCB"; 1008 const char *type; 1009 struct qla_hw_data *ha = vha->hw; 1010 srb_t *sp; 1011 struct srb_ctx *sp_bsg; 1012 struct fc_bsg_job *bsg_job; 1013 uint16_t comp_status; 1014 1015 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1016 if (!sp) 1017 return; 1018 1019 sp_bsg = sp->ctx; 1020 bsg_job = sp_bsg->u.bsg_job; 1021 1022 type = NULL; 1023 switch (sp_bsg->type) { 1024 case SRB_CT_CMD: 1025 type = "ct pass-through"; 1026 break; 1027 default: 1028 qla_printk(KERN_WARNING, ha, 1029 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp, 1030 sp_bsg->type); 1031 return; 1032 } 1033 1034 comp_status = le16_to_cpu(pkt->comp_status); 1035 1036 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1037 * fc payload to the caller 1038 */ 1039 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1040 bsg_job->reply_len = sizeof(struct fc_bsg_reply); 1041 1042 if (comp_status != CS_COMPLETE) { 1043 if (comp_status == CS_DATA_UNDERRUN) { 1044 bsg_job->reply->result = DID_OK << 16; 1045 bsg_job->reply->reply_payload_rcv_len = 1046 le16_to_cpu(((sts_entry_t *)pkt)->rsp_info_len); 1047 1048 DEBUG2(qla_printk(KERN_WARNING, ha, 1049 "scsi(%ld): CT pass-through-%s error " 1050 "comp_status-status=0x%x total_byte = 0x%x.\n", 1051 vha->host_no, type, comp_status, 1052 bsg_job->reply->reply_payload_rcv_len)); 1053 } else { 1054 DEBUG2(qla_printk(KERN_WARNING, ha, 1055 "scsi(%ld): CT pass-through-%s error " 1056 "comp_status-status=0x%x.\n", 1057 vha->host_no, type, comp_status)); 1058 bsg_job->reply->result = DID_ERROR << 16; 1059 bsg_job->reply->reply_payload_rcv_len = 0; 1060 } 1061 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt))); 1062 } else { 1063 bsg_job->reply->result = DID_OK << 16; 1064 bsg_job->reply->reply_payload_rcv_len = 1065 bsg_job->reply_payload.payload_len; 1066 bsg_job->reply_len = 0; 1067 } 1068 1069 dma_unmap_sg(&ha->pdev->dev, bsg_job->request_payload.sg_list, 1070 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); 1071 1072 dma_unmap_sg(&ha->pdev->dev, bsg_job->reply_payload.sg_list, 1073 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); 1074 1075 if (sp_bsg->type == SRB_ELS_CMD_HST || sp_bsg->type == SRB_CT_CMD) 1076 kfree(sp->fcport); 1077 1078 kfree(sp->ctx); 1079 mempool_free(sp, ha->srb_mempool); 1080 bsg_job->job_done(bsg_job); 1081 } 1082 1083 static void 1084 qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req, 1085 struct sts_entry_24xx *pkt, int iocb_type) 1086 { 1087 const char func[] = "ELS_CT_IOCB"; 1088 const char *type; 1089 struct qla_hw_data *ha = vha->hw; 1090 srb_t *sp; 1091 struct srb_ctx *sp_bsg; 1092 struct fc_bsg_job *bsg_job; 1093 uint16_t comp_status; 1094 uint32_t fw_status[3]; 1095 uint8_t* fw_sts_ptr; 1096 1097 sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); 1098 if (!sp) 1099 return; 1100 sp_bsg = sp->ctx; 1101 bsg_job = sp_bsg->u.bsg_job; 1102 1103 type = NULL; 1104 switch (sp_bsg->type) { 1105 case SRB_ELS_CMD_RPT: 1106 case SRB_ELS_CMD_HST: 1107 type = "els"; 1108 break; 1109 case SRB_CT_CMD: 1110 type = "ct pass-through"; 1111 break; 1112 default: 1113 qla_printk(KERN_WARNING, ha, 1114 "%s: Unrecognized SRB: (%p) type=%d.\n", func, sp, 1115 sp_bsg->type); 1116 return; 1117 } 1118 1119 comp_status = fw_status[0] = le16_to_cpu(pkt->comp_status); 1120 fw_status[1] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1); 1121 fw_status[2] = le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2); 1122 1123 /* return FC_CTELS_STATUS_OK and leave the decoding of the ELS/CT 1124 * fc payload to the caller 1125 */ 1126 bsg_job->reply->reply_data.ctels_reply.status = FC_CTELS_STATUS_OK; 1127 bsg_job->reply_len = sizeof(struct fc_bsg_reply) + sizeof(fw_status); 1128 1129 if (comp_status != CS_COMPLETE) { 1130 if (comp_status == CS_DATA_UNDERRUN) { 1131 bsg_job->reply->result = DID_OK << 16; 1132 bsg_job->reply->reply_payload_rcv_len = 1133 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count); 1134 1135 DEBUG2(qla_printk(KERN_WARNING, ha, 1136 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x " 1137 "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n", 1138 vha->host_no, sp->handle, type, comp_status, fw_status[1], fw_status[2], 1139 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count))); 1140 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1141 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1142 } 1143 else { 1144 DEBUG2(qla_printk(KERN_WARNING, ha, 1145 "scsi(%ld:0x%x): ELS-CT pass-through-%s error comp_status-status=0x%x " 1146 "error subcode 1=0x%x error subcode 2=0x%x.\n", 1147 vha->host_no, sp->handle, type, comp_status, 1148 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_1), 1149 le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->error_subcode_2))); 1150 bsg_job->reply->result = DID_ERROR << 16; 1151 bsg_job->reply->reply_payload_rcv_len = 0; 1152 fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply); 1153 memcpy( fw_sts_ptr, fw_status, sizeof(fw_status)); 1154 } 1155 DEBUG2(qla2x00_dump_buffer((uint8_t *)pkt, sizeof(*pkt))); 1156 } 1157 else { 1158 bsg_job->reply->result = DID_OK << 16; 1159 bsg_job->reply->reply_payload_rcv_len = bsg_job->reply_payload.payload_len; 1160 bsg_job->reply_len = 0; 1161 } 1162 1163 dma_unmap_sg(&ha->pdev->dev, 1164 bsg_job->request_payload.sg_list, 1165 bsg_job->request_payload.sg_cnt, DMA_TO_DEVICE); 1166 dma_unmap_sg(&ha->pdev->dev, 1167 bsg_job->reply_payload.sg_list, 1168 bsg_job->reply_payload.sg_cnt, DMA_FROM_DEVICE); 1169 if ((sp_bsg->type == SRB_ELS_CMD_HST) || 1170 (sp_bsg->type == SRB_CT_CMD)) 1171 kfree(sp->fcport); 1172 kfree(sp->ctx); 1173 mempool_free(sp, ha->srb_mempool); 1174 bsg_job->job_done(bsg_job); 1175 } 1176 1177 static void 1178 qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, 1179 struct logio_entry_24xx *logio) 1180 { 1181 const char func[] = "LOGIO-IOCB"; 1182 const char *type; 1183 fc_port_t *fcport; 1184 srb_t *sp; 1185 struct srb_iocb *lio; 1186 struct srb_ctx *ctx; 1187 uint16_t *data; 1188 uint32_t iop[2]; 1189 1190 sp = qla2x00_get_sp_from_handle(vha, func, req, logio); 1191 if (!sp) 1192 return; 1193 1194 ctx = sp->ctx; 1195 lio = ctx->u.iocb_cmd; 1196 type = ctx->name; 1197 fcport = sp->fcport; 1198 data = lio->u.logio.data; 1199 1200 data[0] = MBS_COMMAND_ERROR; 1201 data[1] = lio->u.logio.flags & SRB_LOGIN_RETRIED ? 1202 QLA_LOGIO_LOGIN_RETRIED : 0; 1203 if (logio->entry_status) { 1204 DEBUG2(printk(KERN_WARNING 1205 "scsi(%ld:%x): Async-%s error entry - " 1206 "portid=%02x%02x%02x entry-status=%x.\n", 1207 fcport->vha->host_no, sp->handle, type, 1208 fcport->d_id.b.domain, fcport->d_id.b.area, 1209 fcport->d_id.b.al_pa, logio->entry_status)); 1210 DEBUG2(qla2x00_dump_buffer((uint8_t *)logio, sizeof(*logio))); 1211 1212 goto logio_done; 1213 } 1214 1215 if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { 1216 DEBUG2(printk(KERN_DEBUG 1217 "scsi(%ld:%x): Async-%s complete - portid=%02x%02x%02x " 1218 "iop0=%x.\n", 1219 fcport->vha->host_no, sp->handle, type, 1220 fcport->d_id.b.domain, fcport->d_id.b.area, 1221 fcport->d_id.b.al_pa, 1222 le32_to_cpu(logio->io_parameter[0]))); 1223 1224 data[0] = MBS_COMMAND_COMPLETE; 1225 if (ctx->type != SRB_LOGIN_CMD) 1226 goto logio_done; 1227 1228 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1229 if (iop[0] & BIT_4) { 1230 fcport->port_type = FCT_TARGET; 1231 if (iop[0] & BIT_8) 1232 fcport->flags |= FCF_FCP2_DEVICE; 1233 } else if (iop[0] & BIT_5) 1234 fcport->port_type = FCT_INITIATOR; 1235 1236 if (logio->io_parameter[7] || logio->io_parameter[8]) 1237 fcport->supported_classes |= FC_COS_CLASS2; 1238 if (logio->io_parameter[9] || logio->io_parameter[10]) 1239 fcport->supported_classes |= FC_COS_CLASS3; 1240 1241 goto logio_done; 1242 } 1243 1244 iop[0] = le32_to_cpu(logio->io_parameter[0]); 1245 iop[1] = le32_to_cpu(logio->io_parameter[1]); 1246 switch (iop[0]) { 1247 case LSC_SCODE_PORTID_USED: 1248 data[0] = MBS_PORT_ID_USED; 1249 data[1] = LSW(iop[1]); 1250 break; 1251 case LSC_SCODE_NPORT_USED: 1252 data[0] = MBS_LOOP_ID_USED; 1253 break; 1254 default: 1255 data[0] = MBS_COMMAND_ERROR; 1256 break; 1257 } 1258 1259 DEBUG2(printk(KERN_WARNING 1260 "scsi(%ld:%x): Async-%s failed - portid=%02x%02x%02x comp=%x " 1261 "iop0=%x iop1=%x.\n", 1262 fcport->vha->host_no, sp->handle, type, fcport->d_id.b.domain, 1263 fcport->d_id.b.area, fcport->d_id.b.al_pa, 1264 le16_to_cpu(logio->comp_status), 1265 le32_to_cpu(logio->io_parameter[0]), 1266 le32_to_cpu(logio->io_parameter[1]))); 1267 1268 logio_done: 1269 lio->done(sp); 1270 } 1271 1272 static void 1273 qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, 1274 struct tsk_mgmt_entry *tsk) 1275 { 1276 const char func[] = "TMF-IOCB"; 1277 const char *type; 1278 fc_port_t *fcport; 1279 srb_t *sp; 1280 struct srb_iocb *iocb; 1281 struct srb_ctx *ctx; 1282 struct sts_entry_24xx *sts = (struct sts_entry_24xx *)tsk; 1283 int error = 1; 1284 1285 sp = qla2x00_get_sp_from_handle(vha, func, req, tsk); 1286 if (!sp) 1287 return; 1288 1289 ctx = sp->ctx; 1290 iocb = ctx->u.iocb_cmd; 1291 type = ctx->name; 1292 fcport = sp->fcport; 1293 1294 if (sts->entry_status) { 1295 DEBUG2(printk(KERN_WARNING 1296 "scsi(%ld:%x): Async-%s error - entry-status(%x).\n", 1297 fcport->vha->host_no, sp->handle, type, 1298 sts->entry_status)); 1299 } else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) { 1300 DEBUG2(printk(KERN_WARNING 1301 "scsi(%ld:%x): Async-%s error - completion status(%x).\n", 1302 fcport->vha->host_no, sp->handle, type, 1303 sts->comp_status)); 1304 } else if (!(le16_to_cpu(sts->scsi_status) & 1305 SS_RESPONSE_INFO_LEN_VALID)) { 1306 DEBUG2(printk(KERN_WARNING 1307 "scsi(%ld:%x): Async-%s error - no response info(%x).\n", 1308 fcport->vha->host_no, sp->handle, type, 1309 sts->scsi_status)); 1310 } else if (le32_to_cpu(sts->rsp_data_len) < 4) { 1311 DEBUG2(printk(KERN_WARNING 1312 "scsi(%ld:%x): Async-%s error - not enough response(%d).\n", 1313 fcport->vha->host_no, sp->handle, type, 1314 sts->rsp_data_len)); 1315 } else if (sts->data[3]) { 1316 DEBUG2(printk(KERN_WARNING 1317 "scsi(%ld:%x): Async-%s error - response(%x).\n", 1318 fcport->vha->host_no, sp->handle, type, 1319 sts->data[3])); 1320 } else { 1321 error = 0; 1322 } 1323 1324 if (error) { 1325 iocb->u.tmf.data = error; 1326 DEBUG2(qla2x00_dump_buffer((uint8_t *)sts, sizeof(*sts))); 1327 } 1328 1329 iocb->done(sp); 1330 } 1331 1332 /** 1333 * qla2x00_process_response_queue() - Process response queue entries. 1334 * @ha: SCSI driver HA context 1335 */ 1336 void 1337 qla2x00_process_response_queue(struct rsp_que *rsp) 1338 { 1339 struct scsi_qla_host *vha; 1340 struct qla_hw_data *ha = rsp->hw; 1341 struct device_reg_2xxx __iomem *reg = &ha->iobase->isp; 1342 sts_entry_t *pkt; 1343 uint16_t handle_cnt; 1344 uint16_t cnt; 1345 1346 vha = pci_get_drvdata(ha->pdev); 1347 1348 if (!vha->flags.online) 1349 return; 1350 1351 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1352 pkt = (sts_entry_t *)rsp->ring_ptr; 1353 1354 rsp->ring_index++; 1355 if (rsp->ring_index == rsp->length) { 1356 rsp->ring_index = 0; 1357 rsp->ring_ptr = rsp->ring; 1358 } else { 1359 rsp->ring_ptr++; 1360 } 1361 1362 if (pkt->entry_status != 0) { 1363 DEBUG3(printk(KERN_INFO 1364 "scsi(%ld): Process error entry.\n", vha->host_no)); 1365 1366 qla2x00_error_entry(vha, rsp, pkt); 1367 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1368 wmb(); 1369 continue; 1370 } 1371 1372 switch (pkt->entry_type) { 1373 case STATUS_TYPE: 1374 qla2x00_status_entry(vha, rsp, pkt); 1375 break; 1376 case STATUS_TYPE_21: 1377 handle_cnt = ((sts21_entry_t *)pkt)->handle_count; 1378 for (cnt = 0; cnt < handle_cnt; cnt++) { 1379 qla2x00_process_completed_request(vha, rsp->req, 1380 ((sts21_entry_t *)pkt)->handle[cnt]); 1381 } 1382 break; 1383 case STATUS_TYPE_22: 1384 handle_cnt = ((sts22_entry_t *)pkt)->handle_count; 1385 for (cnt = 0; cnt < handle_cnt; cnt++) { 1386 qla2x00_process_completed_request(vha, rsp->req, 1387 ((sts22_entry_t *)pkt)->handle[cnt]); 1388 } 1389 break; 1390 case STATUS_CONT_TYPE: 1391 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 1392 break; 1393 case MBX_IOCB_TYPE: 1394 qla2x00_mbx_iocb_entry(vha, rsp->req, 1395 (struct mbx_entry *)pkt); 1396 break; 1397 case CT_IOCB_TYPE: 1398 qla2x00_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 1399 break; 1400 default: 1401 /* Type Not Supported. */ 1402 DEBUG4(printk(KERN_WARNING 1403 "scsi(%ld): Received unknown response pkt type %x " 1404 "entry status=%x.\n", 1405 vha->host_no, pkt->entry_type, pkt->entry_status)); 1406 break; 1407 } 1408 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 1409 wmb(); 1410 } 1411 1412 /* Adjust ring index */ 1413 WRT_REG_WORD(ISP_RSP_Q_OUT(ha, reg), rsp->ring_index); 1414 } 1415 1416 static inline void 1417 1418 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len, 1419 uint32_t sense_len, struct rsp_que *rsp) 1420 { 1421 struct scsi_cmnd *cp = sp->cmd; 1422 1423 if (sense_len >= SCSI_SENSE_BUFFERSIZE) 1424 sense_len = SCSI_SENSE_BUFFERSIZE; 1425 1426 sp->request_sense_length = sense_len; 1427 sp->request_sense_ptr = cp->sense_buffer; 1428 if (sp->request_sense_length > par_sense_len) 1429 sense_len = par_sense_len; 1430 1431 memcpy(cp->sense_buffer, sense_data, sense_len); 1432 1433 sp->request_sense_ptr += sense_len; 1434 sp->request_sense_length -= sense_len; 1435 if (sp->request_sense_length != 0) 1436 rsp->status_srb = sp; 1437 1438 DEBUG5(printk("%s(): Check condition Sense data, scsi(%ld:%d:%d:%d) " 1439 "cmd=%p\n", __func__, sp->fcport->vha->host_no, 1440 cp->device->channel, cp->device->id, cp->device->lun, cp)); 1441 if (sense_len) 1442 DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len)); 1443 } 1444 1445 struct scsi_dif_tuple { 1446 __be16 guard; /* Checksum */ 1447 __be16 app_tag; /* APPL identifer */ 1448 __be32 ref_tag; /* Target LBA or indirect LBA */ 1449 }; 1450 1451 /* 1452 * Checks the guard or meta-data for the type of error 1453 * detected by the HBA. In case of errors, we set the 1454 * ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST 1455 * to indicate to the kernel that the HBA detected error. 1456 */ 1457 static inline void 1458 qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24) 1459 { 1460 struct scsi_cmnd *cmd = sp->cmd; 1461 struct scsi_dif_tuple *ep = 1462 (struct scsi_dif_tuple *)&sts24->data[20]; 1463 struct scsi_dif_tuple *ap = 1464 (struct scsi_dif_tuple *)&sts24->data[12]; 1465 uint32_t e_ref_tag, a_ref_tag; 1466 uint16_t e_app_tag, a_app_tag; 1467 uint16_t e_guard, a_guard; 1468 1469 e_ref_tag = be32_to_cpu(ep->ref_tag); 1470 a_ref_tag = be32_to_cpu(ap->ref_tag); 1471 e_app_tag = be16_to_cpu(ep->app_tag); 1472 a_app_tag = be16_to_cpu(ap->app_tag); 1473 e_guard = be16_to_cpu(ep->guard); 1474 a_guard = be16_to_cpu(ap->guard); 1475 1476 DEBUG18(printk(KERN_DEBUG 1477 "%s(): iocb(s) %p Returned STATUS\n", __func__, sts24)); 1478 1479 DEBUG18(printk(KERN_ERR "DIF ERROR in cmd 0x%x lba 0x%llx act ref" 1480 " tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app" 1481 " tag=0x%x, act guard=0x%x, exp guard=0x%x\n", 1482 cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag, 1483 a_app_tag, e_app_tag, a_guard, e_guard)); 1484 1485 1486 /* check guard */ 1487 if (e_guard != a_guard) { 1488 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1489 0x10, 0x1); 1490 set_driver_byte(cmd, DRIVER_SENSE); 1491 set_host_byte(cmd, DID_ABORT); 1492 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1493 return; 1494 } 1495 1496 /* check appl tag */ 1497 if (e_app_tag != a_app_tag) { 1498 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1499 0x10, 0x2); 1500 set_driver_byte(cmd, DRIVER_SENSE); 1501 set_host_byte(cmd, DID_ABORT); 1502 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1503 return; 1504 } 1505 1506 /* check ref tag */ 1507 if (e_ref_tag != a_ref_tag) { 1508 scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST, 1509 0x10, 0x3); 1510 set_driver_byte(cmd, DRIVER_SENSE); 1511 set_host_byte(cmd, DID_ABORT); 1512 cmd->result |= SAM_STAT_CHECK_CONDITION << 1; 1513 return; 1514 } 1515 } 1516 1517 /** 1518 * qla2x00_status_entry() - Process a Status IOCB entry. 1519 * @ha: SCSI driver HA context 1520 * @pkt: Entry pointer 1521 */ 1522 static void 1523 qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) 1524 { 1525 srb_t *sp; 1526 fc_port_t *fcport; 1527 struct scsi_cmnd *cp; 1528 sts_entry_t *sts; 1529 struct sts_entry_24xx *sts24; 1530 uint16_t comp_status; 1531 uint16_t scsi_status; 1532 uint16_t ox_id; 1533 uint8_t lscsi_status; 1534 int32_t resid; 1535 uint32_t sense_len, par_sense_len, rsp_info_len, resid_len, 1536 fw_resid_len; 1537 uint8_t *rsp_info, *sense_data; 1538 struct qla_hw_data *ha = vha->hw; 1539 uint32_t handle; 1540 uint16_t que; 1541 struct req_que *req; 1542 int logit = 1; 1543 1544 sts = (sts_entry_t *) pkt; 1545 sts24 = (struct sts_entry_24xx *) pkt; 1546 if (IS_FWI2_CAPABLE(ha)) { 1547 comp_status = le16_to_cpu(sts24->comp_status); 1548 scsi_status = le16_to_cpu(sts24->scsi_status) & SS_MASK; 1549 } else { 1550 comp_status = le16_to_cpu(sts->comp_status); 1551 scsi_status = le16_to_cpu(sts->scsi_status) & SS_MASK; 1552 } 1553 handle = (uint32_t) LSW(sts->handle); 1554 que = MSW(sts->handle); 1555 req = ha->req_q_map[que]; 1556 1557 /* Fast path completion. */ 1558 if (comp_status == CS_COMPLETE && scsi_status == 0) { 1559 qla2x00_process_completed_request(vha, req, handle); 1560 1561 return; 1562 } 1563 1564 /* Validate handle. */ 1565 if (handle < MAX_OUTSTANDING_COMMANDS) { 1566 sp = req->outstanding_cmds[handle]; 1567 req->outstanding_cmds[handle] = NULL; 1568 } else 1569 sp = NULL; 1570 1571 if (sp == NULL) { 1572 qla_printk(KERN_WARNING, ha, 1573 "scsi(%ld): Invalid status handle (0x%x).\n", vha->host_no, 1574 sts->handle); 1575 1576 if (IS_QLA82XX(ha)) 1577 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1578 else 1579 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1580 qla2xxx_wake_dpc(vha); 1581 return; 1582 } 1583 cp = sp->cmd; 1584 if (cp == NULL) { 1585 qla_printk(KERN_WARNING, ha, 1586 "scsi(%ld): Command already returned (0x%x/%p).\n", 1587 vha->host_no, sts->handle, sp); 1588 1589 return; 1590 } 1591 1592 lscsi_status = scsi_status & STATUS_MASK; 1593 1594 fcport = sp->fcport; 1595 1596 ox_id = 0; 1597 sense_len = par_sense_len = rsp_info_len = resid_len = 1598 fw_resid_len = 0; 1599 if (IS_FWI2_CAPABLE(ha)) { 1600 if (scsi_status & SS_SENSE_LEN_VALID) 1601 sense_len = le32_to_cpu(sts24->sense_len); 1602 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 1603 rsp_info_len = le32_to_cpu(sts24->rsp_data_len); 1604 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) 1605 resid_len = le32_to_cpu(sts24->rsp_residual_count); 1606 if (comp_status == CS_DATA_UNDERRUN) 1607 fw_resid_len = le32_to_cpu(sts24->residual_len); 1608 rsp_info = sts24->data; 1609 sense_data = sts24->data; 1610 host_to_fcp_swap(sts24->data, sizeof(sts24->data)); 1611 ox_id = le16_to_cpu(sts24->ox_id); 1612 par_sense_len = sizeof(sts24->data); 1613 } else { 1614 if (scsi_status & SS_SENSE_LEN_VALID) 1615 sense_len = le16_to_cpu(sts->req_sense_length); 1616 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) 1617 rsp_info_len = le16_to_cpu(sts->rsp_info_len); 1618 resid_len = le32_to_cpu(sts->residual_length); 1619 rsp_info = sts->rsp_info; 1620 sense_data = sts->req_sense_data; 1621 par_sense_len = sizeof(sts->req_sense_data); 1622 } 1623 1624 /* Check for any FCP transport errors. */ 1625 if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) { 1626 /* Sense data lies beyond any FCP RESPONSE data. */ 1627 if (IS_FWI2_CAPABLE(ha)) { 1628 sense_data += rsp_info_len; 1629 par_sense_len -= rsp_info_len; 1630 } 1631 if (rsp_info_len > 3 && rsp_info[3]) { 1632 DEBUG2(qla_printk(KERN_INFO, ha, 1633 "scsi(%ld:%d:%d): FCP I/O protocol failure " 1634 "(0x%x/0x%x).\n", vha->host_no, cp->device->id, 1635 cp->device->lun, rsp_info_len, rsp_info[3])); 1636 1637 cp->result = DID_BUS_BUSY << 16; 1638 goto out; 1639 } 1640 } 1641 1642 /* Check for overrun. */ 1643 if (IS_FWI2_CAPABLE(ha) && comp_status == CS_COMPLETE && 1644 scsi_status & SS_RESIDUAL_OVER) 1645 comp_status = CS_DATA_OVERRUN; 1646 1647 /* 1648 * Based on Host and scsi status generate status code for Linux 1649 */ 1650 switch (comp_status) { 1651 case CS_COMPLETE: 1652 case CS_QUEUE_FULL: 1653 if (scsi_status == 0) { 1654 cp->result = DID_OK << 16; 1655 break; 1656 } 1657 if (scsi_status & (SS_RESIDUAL_UNDER | SS_RESIDUAL_OVER)) { 1658 resid = resid_len; 1659 scsi_set_resid(cp, resid); 1660 1661 if (!lscsi_status && 1662 ((unsigned)(scsi_bufflen(cp) - resid) < 1663 cp->underflow)) { 1664 qla_printk(KERN_INFO, ha, 1665 "scsi(%ld:%d:%d): Mid-layer underflow " 1666 "detected (0x%x of 0x%x bytes).\n", 1667 vha->host_no, cp->device->id, 1668 cp->device->lun, resid, scsi_bufflen(cp)); 1669 1670 cp->result = DID_ERROR << 16; 1671 break; 1672 } 1673 } 1674 cp->result = DID_OK << 16 | lscsi_status; 1675 1676 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 1677 DEBUG2(qla_printk(KERN_INFO, ha, 1678 "scsi(%ld:%d:%d) QUEUE FULL detected.\n", 1679 vha->host_no, cp->device->id, cp->device->lun)); 1680 break; 1681 } 1682 logit = 0; 1683 if (lscsi_status != SS_CHECK_CONDITION) 1684 break; 1685 1686 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 1687 if (!(scsi_status & SS_SENSE_LEN_VALID)) 1688 break; 1689 1690 qla2x00_handle_sense(sp, sense_data, par_sense_len, sense_len, 1691 rsp); 1692 break; 1693 1694 case CS_DATA_UNDERRUN: 1695 /* Use F/W calculated residual length. */ 1696 resid = IS_FWI2_CAPABLE(ha) ? fw_resid_len : resid_len; 1697 scsi_set_resid(cp, resid); 1698 if (scsi_status & SS_RESIDUAL_UNDER) { 1699 if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) { 1700 DEBUG2(qla_printk(KERN_INFO, ha, 1701 "scsi(%ld:%d:%d) Dropped frame(s) detected " 1702 "(0x%x of 0x%x bytes).\n", vha->host_no, 1703 cp->device->id, cp->device->lun, resid, 1704 scsi_bufflen(cp))); 1705 1706 cp->result = DID_ERROR << 16 | lscsi_status; 1707 break; 1708 } 1709 1710 if (!lscsi_status && 1711 ((unsigned)(scsi_bufflen(cp) - resid) < 1712 cp->underflow)) { 1713 qla_printk(KERN_INFO, ha, 1714 "scsi(%ld:%d:%d): Mid-layer underflow " 1715 "detected (0x%x of 0x%x bytes).\n", 1716 vha->host_no, cp->device->id, 1717 cp->device->lun, resid, scsi_bufflen(cp)); 1718 1719 cp->result = DID_ERROR << 16; 1720 break; 1721 } 1722 } else { 1723 DEBUG2(qla_printk(KERN_INFO, ha, 1724 "scsi(%ld:%d:%d) Dropped frame(s) detected (0x%x " 1725 "of 0x%x bytes).\n", vha->host_no, cp->device->id, 1726 cp->device->lun, resid, scsi_bufflen(cp))); 1727 1728 cp->result = DID_ERROR << 16 | lscsi_status; 1729 goto check_scsi_status; 1730 } 1731 1732 cp->result = DID_OK << 16 | lscsi_status; 1733 logit = 0; 1734 1735 check_scsi_status: 1736 /* 1737 * Check to see if SCSI Status is non zero. If so report SCSI 1738 * Status. 1739 */ 1740 if (lscsi_status != 0) { 1741 if (lscsi_status == SAM_STAT_TASK_SET_FULL) { 1742 DEBUG2(qla_printk(KERN_INFO, ha, 1743 "scsi(%ld:%d:%d) QUEUE FULL detected.\n", 1744 vha->host_no, cp->device->id, 1745 cp->device->lun)); 1746 logit = 1; 1747 break; 1748 } 1749 if (lscsi_status != SS_CHECK_CONDITION) 1750 break; 1751 1752 memset(cp->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 1753 if (!(scsi_status & SS_SENSE_LEN_VALID)) 1754 break; 1755 1756 qla2x00_handle_sense(sp, sense_data, par_sense_len, 1757 sense_len, rsp); 1758 } 1759 break; 1760 1761 case CS_PORT_LOGGED_OUT: 1762 case CS_PORT_CONFIG_CHG: 1763 case CS_PORT_BUSY: 1764 case CS_INCOMPLETE: 1765 case CS_PORT_UNAVAILABLE: 1766 case CS_TIMEOUT: 1767 case CS_RESET: 1768 1769 /* 1770 * We are going to have the fc class block the rport 1771 * while we try to recover so instruct the mid layer 1772 * to requeue until the class decides how to handle this. 1773 */ 1774 cp->result = DID_TRANSPORT_DISRUPTED << 16; 1775 1776 if (comp_status == CS_TIMEOUT) { 1777 if (IS_FWI2_CAPABLE(ha)) 1778 break; 1779 else if ((le16_to_cpu(sts->status_flags) & 1780 SF_LOGOUT_SENT) == 0) 1781 break; 1782 } 1783 1784 DEBUG2(qla_printk(KERN_INFO, ha, 1785 "scsi(%ld:%d:%d) Port down status: port-state=0x%x\n", 1786 vha->host_no, cp->device->id, cp->device->lun, 1787 atomic_read(&fcport->state))); 1788 1789 if (atomic_read(&fcport->state) == FCS_ONLINE) 1790 qla2x00_mark_device_lost(fcport->vha, fcport, 1, 1); 1791 break; 1792 1793 case CS_ABORTED: 1794 cp->result = DID_RESET << 16; 1795 break; 1796 1797 case CS_DIF_ERROR: 1798 qla2x00_handle_dif_error(sp, sts24); 1799 break; 1800 default: 1801 cp->result = DID_ERROR << 16; 1802 break; 1803 } 1804 1805 out: 1806 if (logit) 1807 DEBUG2(qla_printk(KERN_INFO, ha, 1808 "scsi(%ld:%d:%d) FCP command status: 0x%x-0x%x (0x%x) " 1809 "portid=%02x%02x%02x oxid=0x%x cdb=%02x%02x%02x len=0x%x " 1810 "rsp_info=0x%x resid=0x%x fw_resid=0x%x\n", vha->host_no, 1811 cp->device->id, cp->device->lun, comp_status, scsi_status, 1812 cp->result, fcport->d_id.b.domain, fcport->d_id.b.area, 1813 fcport->d_id.b.al_pa, ox_id, cp->cmnd[0], cp->cmnd[1], 1814 cp->cmnd[2], scsi_bufflen(cp), rsp_info_len, resid_len, 1815 fw_resid_len)); 1816 1817 if (rsp->status_srb == NULL) 1818 qla2x00_sp_compl(ha, sp); 1819 } 1820 1821 /** 1822 * qla2x00_status_cont_entry() - Process a Status Continuations entry. 1823 * @ha: SCSI driver HA context 1824 * @pkt: Entry pointer 1825 * 1826 * Extended sense data. 1827 */ 1828 static void 1829 qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt) 1830 { 1831 uint8_t sense_sz = 0; 1832 struct qla_hw_data *ha = rsp->hw; 1833 srb_t *sp = rsp->status_srb; 1834 struct scsi_cmnd *cp; 1835 1836 if (sp != NULL && sp->request_sense_length != 0) { 1837 cp = sp->cmd; 1838 if (cp == NULL) { 1839 DEBUG2(printk("%s(): Cmd already returned back to OS " 1840 "sp=%p.\n", __func__, sp)); 1841 qla_printk(KERN_INFO, ha, 1842 "cmd is NULL: already returned to OS (sp=%p)\n", 1843 sp); 1844 1845 rsp->status_srb = NULL; 1846 return; 1847 } 1848 1849 if (sp->request_sense_length > sizeof(pkt->data)) { 1850 sense_sz = sizeof(pkt->data); 1851 } else { 1852 sense_sz = sp->request_sense_length; 1853 } 1854 1855 /* Move sense data. */ 1856 if (IS_FWI2_CAPABLE(ha)) 1857 host_to_fcp_swap(pkt->data, sizeof(pkt->data)); 1858 memcpy(sp->request_sense_ptr, pkt->data, sense_sz); 1859 DEBUG5(qla2x00_dump_buffer(sp->request_sense_ptr, sense_sz)); 1860 1861 sp->request_sense_ptr += sense_sz; 1862 sp->request_sense_length -= sense_sz; 1863 1864 /* Place command on done queue. */ 1865 if (sp->request_sense_length == 0) { 1866 rsp->status_srb = NULL; 1867 qla2x00_sp_compl(ha, sp); 1868 } 1869 } 1870 } 1871 1872 /** 1873 * qla2x00_error_entry() - Process an error entry. 1874 * @ha: SCSI driver HA context 1875 * @pkt: Entry pointer 1876 */ 1877 static void 1878 qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) 1879 { 1880 srb_t *sp; 1881 struct qla_hw_data *ha = vha->hw; 1882 uint32_t handle = LSW(pkt->handle); 1883 uint16_t que = MSW(pkt->handle); 1884 struct req_que *req = ha->req_q_map[que]; 1885 #if defined(QL_DEBUG_LEVEL_2) 1886 if (pkt->entry_status & RF_INV_E_ORDER) 1887 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Order\n", __func__); 1888 else if (pkt->entry_status & RF_INV_E_COUNT) 1889 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Count\n", __func__); 1890 else if (pkt->entry_status & RF_INV_E_PARAM) 1891 qla_printk(KERN_ERR, ha, 1892 "%s: Invalid Entry Parameter\n", __func__); 1893 else if (pkt->entry_status & RF_INV_E_TYPE) 1894 qla_printk(KERN_ERR, ha, "%s: Invalid Entry Type\n", __func__); 1895 else if (pkt->entry_status & RF_BUSY) 1896 qla_printk(KERN_ERR, ha, "%s: Busy\n", __func__); 1897 else 1898 qla_printk(KERN_ERR, ha, "%s: UNKNOWN flag error\n", __func__); 1899 #endif 1900 1901 /* Validate handle. */ 1902 if (handle < MAX_OUTSTANDING_COMMANDS) 1903 sp = req->outstanding_cmds[handle]; 1904 else 1905 sp = NULL; 1906 1907 if (sp) { 1908 /* Free outstanding command slot. */ 1909 req->outstanding_cmds[handle] = NULL; 1910 1911 /* Bad payload or header */ 1912 if (pkt->entry_status & 1913 (RF_INV_E_ORDER | RF_INV_E_COUNT | 1914 RF_INV_E_PARAM | RF_INV_E_TYPE)) { 1915 sp->cmd->result = DID_ERROR << 16; 1916 } else if (pkt->entry_status & RF_BUSY) { 1917 sp->cmd->result = DID_BUS_BUSY << 16; 1918 } else { 1919 sp->cmd->result = DID_ERROR << 16; 1920 } 1921 qla2x00_sp_compl(ha, sp); 1922 1923 } else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type == 1924 COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7 1925 || pkt->entry_type == COMMAND_TYPE_6) { 1926 DEBUG2(printk("scsi(%ld): Error entry - invalid handle\n", 1927 vha->host_no)); 1928 qla_printk(KERN_WARNING, ha, 1929 "Error entry - invalid handle\n"); 1930 1931 if (IS_QLA82XX(ha)) 1932 set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); 1933 else 1934 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 1935 qla2xxx_wake_dpc(vha); 1936 } 1937 } 1938 1939 /** 1940 * qla24xx_mbx_completion() - Process mailbox command completions. 1941 * @ha: SCSI driver HA context 1942 * @mb0: Mailbox0 register 1943 */ 1944 static void 1945 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0) 1946 { 1947 uint16_t cnt; 1948 uint16_t __iomem *wptr; 1949 struct qla_hw_data *ha = vha->hw; 1950 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 1951 1952 /* Load return mailbox registers. */ 1953 ha->flags.mbox_int = 1; 1954 ha->mailbox_out[0] = mb0; 1955 wptr = (uint16_t __iomem *)®->mailbox1; 1956 1957 for (cnt = 1; cnt < ha->mbx_count; cnt++) { 1958 ha->mailbox_out[cnt] = RD_REG_WORD(wptr); 1959 wptr++; 1960 } 1961 1962 if (ha->mcp) { 1963 DEBUG3(printk("%s(%ld): Got mailbox completion. cmd=%x.\n", 1964 __func__, vha->host_no, ha->mcp->mb[0])); 1965 } else { 1966 DEBUG2_3(printk("%s(%ld): MBX pointer ERROR!\n", 1967 __func__, vha->host_no)); 1968 } 1969 } 1970 1971 /** 1972 * qla24xx_process_response_queue() - Process response queue entries. 1973 * @ha: SCSI driver HA context 1974 */ 1975 void qla24xx_process_response_queue(struct scsi_qla_host *vha, 1976 struct rsp_que *rsp) 1977 { 1978 struct sts_entry_24xx *pkt; 1979 struct qla_hw_data *ha = vha->hw; 1980 1981 if (!vha->flags.online) 1982 return; 1983 1984 while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { 1985 pkt = (struct sts_entry_24xx *)rsp->ring_ptr; 1986 1987 rsp->ring_index++; 1988 if (rsp->ring_index == rsp->length) { 1989 rsp->ring_index = 0; 1990 rsp->ring_ptr = rsp->ring; 1991 } else { 1992 rsp->ring_ptr++; 1993 } 1994 1995 if (pkt->entry_status != 0) { 1996 DEBUG3(printk(KERN_INFO 1997 "scsi(%ld): Process error entry.\n", vha->host_no)); 1998 1999 qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt); 2000 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2001 wmb(); 2002 continue; 2003 } 2004 2005 switch (pkt->entry_type) { 2006 case STATUS_TYPE: 2007 qla2x00_status_entry(vha, rsp, pkt); 2008 break; 2009 case STATUS_CONT_TYPE: 2010 qla2x00_status_cont_entry(rsp, (sts_cont_entry_t *)pkt); 2011 break; 2012 case VP_RPT_ID_IOCB_TYPE: 2013 qla24xx_report_id_acquisition(vha, 2014 (struct vp_rpt_id_entry_24xx *)pkt); 2015 break; 2016 case LOGINOUT_PORT_IOCB_TYPE: 2017 qla24xx_logio_entry(vha, rsp->req, 2018 (struct logio_entry_24xx *)pkt); 2019 break; 2020 case TSK_MGMT_IOCB_TYPE: 2021 qla24xx_tm_iocb_entry(vha, rsp->req, 2022 (struct tsk_mgmt_entry *)pkt); 2023 break; 2024 case CT_IOCB_TYPE: 2025 qla24xx_els_ct_entry(vha, rsp->req, pkt, CT_IOCB_TYPE); 2026 clear_bit(MBX_INTERRUPT, &vha->hw->mbx_cmd_flags); 2027 break; 2028 case ELS_IOCB_TYPE: 2029 qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE); 2030 break; 2031 default: 2032 /* Type Not Supported. */ 2033 DEBUG4(printk(KERN_WARNING 2034 "scsi(%ld): Received unknown response pkt type %x " 2035 "entry status=%x.\n", 2036 vha->host_no, pkt->entry_type, pkt->entry_status)); 2037 break; 2038 } 2039 ((response_t *)pkt)->signature = RESPONSE_PROCESSED; 2040 wmb(); 2041 } 2042 2043 /* Adjust ring index */ 2044 if (IS_QLA82XX(ha)) { 2045 struct device_reg_82xx __iomem *reg = &ha->iobase->isp82; 2046 WRT_REG_DWORD(®->rsp_q_out[0], rsp->ring_index); 2047 } else 2048 WRT_REG_DWORD(rsp->rsp_q_out, rsp->ring_index); 2049 } 2050 2051 static void 2052 qla2xxx_check_risc_status(scsi_qla_host_t *vha) 2053 { 2054 int rval; 2055 uint32_t cnt; 2056 struct qla_hw_data *ha = vha->hw; 2057 struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; 2058 2059 if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha)) 2060 return; 2061 2062 rval = QLA_SUCCESS; 2063 WRT_REG_DWORD(®->iobase_addr, 0x7C00); 2064 RD_REG_DWORD(®->iobase_addr); 2065 WRT_REG_DWORD(®->iobase_window, 0x0001); 2066 for (cnt = 10000; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2067 rval == QLA_SUCCESS; cnt--) { 2068 if (cnt) { 2069 WRT_REG_DWORD(®->iobase_window, 0x0001); 2070 udelay(10); 2071 } else 2072 rval = QLA_FUNCTION_TIMEOUT; 2073 } 2074 if (rval == QLA_SUCCESS) 2075 goto next_test; 2076 2077 WRT_REG_DWORD(®->iobase_window, 0x0003); 2078 for (cnt = 100; (RD_REG_DWORD(®->iobase_window) & BIT_0) == 0 && 2079 rval == QLA_SUCCESS; cnt--) { 2080 if (cnt) { 2081 WRT_REG_DWORD(®->iobase_window, 0x0003); 2082 udelay(10); 2083 } else 2084 rval = QLA_FUNCTION_TIMEOUT; 2085 } 2086 if (rval != QLA_SUCCESS) 2087 goto done; 2088 2089 next_test: 2090 if (RD_REG_DWORD(®->iobase_c8) & BIT_3) 2091 qla_printk(KERN_INFO, ha, "Additional code -- 0x55AA.\n"); 2092 2093 done: 2094 WRT_REG_DWORD(®->iobase_window, 0x0000); 2095 RD_REG_DWORD(®->iobase_window); 2096 } 2097 2098 /** 2099 * qla24xx_intr_handler() - Process interrupts for the ISP23xx and ISP63xx. 2100 * @irq: 2101 * @dev_id: SCSI driver HA context 2102 * 2103 * Called by system whenever the host adapter generates an interrupt. 2104 * 2105 * Returns handled flag. 2106 */ 2107 irqreturn_t 2108 qla24xx_intr_handler(int irq, void *dev_id) 2109 { 2110 scsi_qla_host_t *vha; 2111 struct qla_hw_data *ha; 2112 struct device_reg_24xx __iomem *reg; 2113 int status; 2114 unsigned long iter; 2115 uint32_t stat; 2116 uint32_t hccr; 2117 uint16_t mb[4]; 2118 struct rsp_que *rsp; 2119 unsigned long flags; 2120 2121 rsp = (struct rsp_que *) dev_id; 2122 if (!rsp) { 2123 printk(KERN_INFO 2124 "%s(): NULL response queue pointer\n", __func__); 2125 return IRQ_NONE; 2126 } 2127 2128 ha = rsp->hw; 2129 reg = &ha->iobase->isp24; 2130 status = 0; 2131 2132 if (unlikely(pci_channel_offline(ha->pdev))) 2133 return IRQ_HANDLED; 2134 2135 spin_lock_irqsave(&ha->hardware_lock, flags); 2136 vha = pci_get_drvdata(ha->pdev); 2137 for (iter = 50; iter--; ) { 2138 stat = RD_REG_DWORD(®->host_status); 2139 if (stat & HSRX_RISC_PAUSED) { 2140 if (unlikely(pci_channel_offline(ha->pdev))) 2141 break; 2142 2143 hccr = RD_REG_DWORD(®->hccr); 2144 2145 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " 2146 "Dumping firmware!\n", hccr); 2147 2148 qla2xxx_check_risc_status(vha); 2149 2150 ha->isp_ops->fw_dump(vha, 1); 2151 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2152 break; 2153 } else if ((stat & HSRX_RISC_INT) == 0) 2154 break; 2155 2156 switch (stat & 0xff) { 2157 case 0x1: 2158 case 0x2: 2159 case 0x10: 2160 case 0x11: 2161 qla24xx_mbx_completion(vha, MSW(stat)); 2162 status |= MBX_INTERRUPT; 2163 2164 break; 2165 case 0x12: 2166 mb[0] = MSW(stat); 2167 mb[1] = RD_REG_WORD(®->mailbox1); 2168 mb[2] = RD_REG_WORD(®->mailbox2); 2169 mb[3] = RD_REG_WORD(®->mailbox3); 2170 qla2x00_async_event(vha, rsp, mb); 2171 break; 2172 case 0x13: 2173 case 0x14: 2174 qla24xx_process_response_queue(vha, rsp); 2175 break; 2176 default: 2177 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 2178 "(%d).\n", 2179 vha->host_no, stat & 0xff)); 2180 break; 2181 } 2182 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2183 RD_REG_DWORD_RELAXED(®->hccr); 2184 } 2185 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2186 2187 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 2188 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 2189 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 2190 complete(&ha->mbx_intr_comp); 2191 } 2192 2193 return IRQ_HANDLED; 2194 } 2195 2196 static irqreturn_t 2197 qla24xx_msix_rsp_q(int irq, void *dev_id) 2198 { 2199 struct qla_hw_data *ha; 2200 struct rsp_que *rsp; 2201 struct device_reg_24xx __iomem *reg; 2202 struct scsi_qla_host *vha; 2203 unsigned long flags; 2204 2205 rsp = (struct rsp_que *) dev_id; 2206 if (!rsp) { 2207 printk(KERN_INFO 2208 "%s(): NULL response queue pointer\n", __func__); 2209 return IRQ_NONE; 2210 } 2211 ha = rsp->hw; 2212 reg = &ha->iobase->isp24; 2213 2214 spin_lock_irqsave(&ha->hardware_lock, flags); 2215 2216 vha = pci_get_drvdata(ha->pdev); 2217 qla24xx_process_response_queue(vha, rsp); 2218 if (!ha->flags.disable_msix_handshake) { 2219 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2220 RD_REG_DWORD_RELAXED(®->hccr); 2221 } 2222 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2223 2224 return IRQ_HANDLED; 2225 } 2226 2227 static irqreturn_t 2228 qla25xx_msix_rsp_q(int irq, void *dev_id) 2229 { 2230 struct qla_hw_data *ha; 2231 struct rsp_que *rsp; 2232 struct device_reg_24xx __iomem *reg; 2233 unsigned long flags; 2234 2235 rsp = (struct rsp_que *) dev_id; 2236 if (!rsp) { 2237 printk(KERN_INFO 2238 "%s(): NULL response queue pointer\n", __func__); 2239 return IRQ_NONE; 2240 } 2241 ha = rsp->hw; 2242 2243 /* Clear the interrupt, if enabled, for this response queue */ 2244 if (rsp->options & ~BIT_6) { 2245 reg = &ha->iobase->isp24; 2246 spin_lock_irqsave(&ha->hardware_lock, flags); 2247 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2248 RD_REG_DWORD_RELAXED(®->hccr); 2249 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2250 } 2251 queue_work_on((int) (rsp->id - 1), ha->wq, &rsp->q_work); 2252 2253 return IRQ_HANDLED; 2254 } 2255 2256 static irqreturn_t 2257 qla24xx_msix_default(int irq, void *dev_id) 2258 { 2259 scsi_qla_host_t *vha; 2260 struct qla_hw_data *ha; 2261 struct rsp_que *rsp; 2262 struct device_reg_24xx __iomem *reg; 2263 int status; 2264 uint32_t stat; 2265 uint32_t hccr; 2266 uint16_t mb[4]; 2267 unsigned long flags; 2268 2269 rsp = (struct rsp_que *) dev_id; 2270 if (!rsp) { 2271 DEBUG(printk( 2272 "%s(): NULL response queue pointer\n", __func__)); 2273 return IRQ_NONE; 2274 } 2275 ha = rsp->hw; 2276 reg = &ha->iobase->isp24; 2277 status = 0; 2278 2279 spin_lock_irqsave(&ha->hardware_lock, flags); 2280 vha = pci_get_drvdata(ha->pdev); 2281 do { 2282 stat = RD_REG_DWORD(®->host_status); 2283 if (stat & HSRX_RISC_PAUSED) { 2284 if (unlikely(pci_channel_offline(ha->pdev))) 2285 break; 2286 2287 hccr = RD_REG_DWORD(®->hccr); 2288 2289 qla_printk(KERN_INFO, ha, "RISC paused -- HCCR=%x, " 2290 "Dumping firmware!\n", hccr); 2291 2292 qla2xxx_check_risc_status(vha); 2293 2294 ha->isp_ops->fw_dump(vha, 1); 2295 set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); 2296 break; 2297 } else if ((stat & HSRX_RISC_INT) == 0) 2298 break; 2299 2300 switch (stat & 0xff) { 2301 case 0x1: 2302 case 0x2: 2303 case 0x10: 2304 case 0x11: 2305 qla24xx_mbx_completion(vha, MSW(stat)); 2306 status |= MBX_INTERRUPT; 2307 2308 break; 2309 case 0x12: 2310 mb[0] = MSW(stat); 2311 mb[1] = RD_REG_WORD(®->mailbox1); 2312 mb[2] = RD_REG_WORD(®->mailbox2); 2313 mb[3] = RD_REG_WORD(®->mailbox3); 2314 qla2x00_async_event(vha, rsp, mb); 2315 break; 2316 case 0x13: 2317 case 0x14: 2318 qla24xx_process_response_queue(vha, rsp); 2319 break; 2320 default: 2321 DEBUG2(printk("scsi(%ld): Unrecognized interrupt type " 2322 "(%d).\n", 2323 vha->host_no, stat & 0xff)); 2324 break; 2325 } 2326 WRT_REG_DWORD(®->hccr, HCCRX_CLR_RISC_INT); 2327 } while (0); 2328 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2329 2330 if (test_bit(MBX_INTR_WAIT, &ha->mbx_cmd_flags) && 2331 (status & MBX_INTERRUPT) && ha->flags.mbox_int) { 2332 set_bit(MBX_INTERRUPT, &ha->mbx_cmd_flags); 2333 complete(&ha->mbx_intr_comp); 2334 } 2335 return IRQ_HANDLED; 2336 } 2337 2338 /* Interrupt handling helpers. */ 2339 2340 struct qla_init_msix_entry { 2341 const char *name; 2342 irq_handler_t handler; 2343 }; 2344 2345 static struct qla_init_msix_entry msix_entries[3] = { 2346 { "qla2xxx (default)", qla24xx_msix_default }, 2347 { "qla2xxx (rsp_q)", qla24xx_msix_rsp_q }, 2348 { "qla2xxx (multiq)", qla25xx_msix_rsp_q }, 2349 }; 2350 2351 static struct qla_init_msix_entry qla82xx_msix_entries[2] = { 2352 { "qla2xxx (default)", qla82xx_msix_default }, 2353 { "qla2xxx (rsp_q)", qla82xx_msix_rsp_q }, 2354 }; 2355 2356 static void 2357 qla24xx_disable_msix(struct qla_hw_data *ha) 2358 { 2359 int i; 2360 struct qla_msix_entry *qentry; 2361 2362 for (i = 0; i < ha->msix_count; i++) { 2363 qentry = &ha->msix_entries[i]; 2364 if (qentry->have_irq) 2365 free_irq(qentry->vector, qentry->rsp); 2366 } 2367 pci_disable_msix(ha->pdev); 2368 kfree(ha->msix_entries); 2369 ha->msix_entries = NULL; 2370 ha->flags.msix_enabled = 0; 2371 } 2372 2373 static int 2374 qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp) 2375 { 2376 #define MIN_MSIX_COUNT 2 2377 int i, ret; 2378 struct msix_entry *entries; 2379 struct qla_msix_entry *qentry; 2380 2381 entries = kzalloc(sizeof(struct msix_entry) * ha->msix_count, 2382 GFP_KERNEL); 2383 if (!entries) 2384 return -ENOMEM; 2385 2386 for (i = 0; i < ha->msix_count; i++) 2387 entries[i].entry = i; 2388 2389 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); 2390 if (ret) { 2391 if (ret < MIN_MSIX_COUNT) 2392 goto msix_failed; 2393 2394 qla_printk(KERN_WARNING, ha, 2395 "MSI-X: Failed to enable support -- %d/%d\n" 2396 " Retry with %d vectors\n", ha->msix_count, ret, ret); 2397 ha->msix_count = ret; 2398 ret = pci_enable_msix(ha->pdev, entries, ha->msix_count); 2399 if (ret) { 2400 msix_failed: 2401 qla_printk(KERN_WARNING, ha, "MSI-X: Failed to enable" 2402 " support, giving up -- %d/%d\n", 2403 ha->msix_count, ret); 2404 goto msix_out; 2405 } 2406 ha->max_rsp_queues = ha->msix_count - 1; 2407 } 2408 ha->msix_entries = kzalloc(sizeof(struct qla_msix_entry) * 2409 ha->msix_count, GFP_KERNEL); 2410 if (!ha->msix_entries) { 2411 ret = -ENOMEM; 2412 goto msix_out; 2413 } 2414 ha->flags.msix_enabled = 1; 2415 2416 for (i = 0; i < ha->msix_count; i++) { 2417 qentry = &ha->msix_entries[i]; 2418 qentry->vector = entries[i].vector; 2419 qentry->entry = entries[i].entry; 2420 qentry->have_irq = 0; 2421 qentry->rsp = NULL; 2422 } 2423 2424 /* Enable MSI-X vectors for the base queue */ 2425 for (i = 0; i < 2; i++) { 2426 qentry = &ha->msix_entries[i]; 2427 if (IS_QLA82XX(ha)) { 2428 ret = request_irq(qentry->vector, 2429 qla82xx_msix_entries[i].handler, 2430 0, qla82xx_msix_entries[i].name, rsp); 2431 } else { 2432 ret = request_irq(qentry->vector, 2433 msix_entries[i].handler, 2434 0, msix_entries[i].name, rsp); 2435 } 2436 if (ret) { 2437 qla_printk(KERN_WARNING, ha, 2438 "MSI-X: Unable to register handler -- %x/%d.\n", 2439 qentry->vector, ret); 2440 qla24xx_disable_msix(ha); 2441 ha->mqenable = 0; 2442 goto msix_out; 2443 } 2444 qentry->have_irq = 1; 2445 qentry->rsp = rsp; 2446 rsp->msix = qentry; 2447 } 2448 2449 /* Enable MSI-X vector for response queue update for queue 0 */ 2450 if (ha->mqiobase && (ha->max_rsp_queues > 1 || ha->max_req_queues > 1)) 2451 ha->mqenable = 1; 2452 2453 msix_out: 2454 kfree(entries); 2455 return ret; 2456 } 2457 2458 int 2459 qla2x00_request_irqs(struct qla_hw_data *ha, struct rsp_que *rsp) 2460 { 2461 int ret; 2462 device_reg_t __iomem *reg = ha->iobase; 2463 2464 /* If possible, enable MSI-X. */ 2465 if (!IS_QLA2432(ha) && !IS_QLA2532(ha) && 2466 !IS_QLA8432(ha) && !IS_QLA8XXX_TYPE(ha)) 2467 goto skip_msi; 2468 2469 if (ha->pdev->subsystem_vendor == PCI_VENDOR_ID_HP && 2470 (ha->pdev->subsystem_device == 0x7040 || 2471 ha->pdev->subsystem_device == 0x7041 || 2472 ha->pdev->subsystem_device == 0x1705)) { 2473 DEBUG2(qla_printk(KERN_WARNING, ha, 2474 "MSI-X: Unsupported ISP2432 SSVID/SSDID (0x%X,0x%X).\n", 2475 ha->pdev->subsystem_vendor, 2476 ha->pdev->subsystem_device)); 2477 goto skip_msi; 2478 } 2479 2480 if (IS_QLA2432(ha) && (ha->pdev->revision < QLA_MSIX_CHIP_REV_24XX || 2481 !QLA_MSIX_FW_MODE_1(ha->fw_attributes))) { 2482 DEBUG2(qla_printk(KERN_WARNING, ha, 2483 "MSI-X: Unsupported ISP2432 (0x%X, 0x%X).\n", 2484 ha->pdev->revision, ha->fw_attributes)); 2485 goto skip_msix; 2486 } 2487 2488 ret = qla24xx_enable_msix(ha, rsp); 2489 if (!ret) { 2490 DEBUG2(qla_printk(KERN_INFO, ha, 2491 "MSI-X: Enabled (0x%X, 0x%X).\n", ha->chip_revision, 2492 ha->fw_attributes)); 2493 goto clear_risc_ints; 2494 } 2495 qla_printk(KERN_WARNING, ha, 2496 "MSI-X: Falling back-to MSI mode -- %d.\n", ret); 2497 skip_msix: 2498 2499 if (!IS_QLA24XX(ha) && !IS_QLA2532(ha) && !IS_QLA8432(ha) && 2500 !IS_QLA8001(ha)) 2501 goto skip_msi; 2502 2503 ret = pci_enable_msi(ha->pdev); 2504 if (!ret) { 2505 DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n")); 2506 ha->flags.msi_enabled = 1; 2507 } else 2508 qla_printk(KERN_WARNING, ha, 2509 "MSI-X: Falling back-to INTa mode -- %d.\n", ret); 2510 skip_msi: 2511 2512 ret = request_irq(ha->pdev->irq, ha->isp_ops->intr_handler, 2513 ha->flags.msi_enabled ? 0 : IRQF_SHARED, 2514 QLA2XXX_DRIVER_NAME, rsp); 2515 if (ret) { 2516 qla_printk(KERN_WARNING, ha, 2517 "Failed to reserve interrupt %d already in use.\n", 2518 ha->pdev->irq); 2519 goto fail; 2520 } 2521 2522 clear_risc_ints: 2523 2524 /* 2525 * FIXME: Noted that 8014s were being dropped during NK testing. 2526 * Timing deltas during MSI-X/INTa transitions? 2527 */ 2528 if (IS_QLA81XX(ha) || IS_QLA82XX(ha)) 2529 goto fail; 2530 spin_lock_irq(&ha->hardware_lock); 2531 if (IS_FWI2_CAPABLE(ha)) { 2532 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_HOST_INT); 2533 WRT_REG_DWORD(®->isp24.hccr, HCCRX_CLR_RISC_INT); 2534 } else { 2535 WRT_REG_WORD(®->isp.semaphore, 0); 2536 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_RISC_INT); 2537 WRT_REG_WORD(®->isp.hccr, HCCR_CLR_HOST_INT); 2538 } 2539 spin_unlock_irq(&ha->hardware_lock); 2540 2541 fail: 2542 return ret; 2543 } 2544 2545 void 2546 qla2x00_free_irqs(scsi_qla_host_t *vha) 2547 { 2548 struct qla_hw_data *ha = vha->hw; 2549 struct rsp_que *rsp = ha->rsp_q_map[0]; 2550 2551 if (ha->flags.msix_enabled) 2552 qla24xx_disable_msix(ha); 2553 else if (ha->flags.msi_enabled) { 2554 free_irq(ha->pdev->irq, rsp); 2555 pci_disable_msi(ha->pdev); 2556 } else 2557 free_irq(ha->pdev->irq, rsp); 2558 } 2559 2560 2561 int qla25xx_request_irq(struct rsp_que *rsp) 2562 { 2563 struct qla_hw_data *ha = rsp->hw; 2564 struct qla_init_msix_entry *intr = &msix_entries[2]; 2565 struct qla_msix_entry *msix = rsp->msix; 2566 int ret; 2567 2568 ret = request_irq(msix->vector, intr->handler, 0, intr->name, rsp); 2569 if (ret) { 2570 qla_printk(KERN_WARNING, ha, 2571 "MSI-X: Unable to register handler -- %x/%d.\n", 2572 msix->vector, ret); 2573 return ret; 2574 } 2575 msix->have_irq = 1; 2576 msix->rsp = rsp; 2577 return ret; 2578 } 2579