1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 #include "qla_target.h" 9 10 #include <linux/blkdev.h> 11 #include <linux/delay.h> 12 13 #include <scsi/scsi_tcq.h> 14 15 /** 16 * qla2x00_get_cmd_direction() - Determine control_flag data direction. 17 * @sp: SCSI command 18 * 19 * Returns the proper CF_* direction based on CDB. 20 */ 21 static inline uint16_t 22 qla2x00_get_cmd_direction(srb_t *sp) 23 { 24 uint16_t cflags; 25 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 26 struct scsi_qla_host *vha = sp->vha; 27 28 cflags = 0; 29 30 /* Set transfer direction */ 31 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 32 cflags = CF_WRITE; 33 vha->qla_stats.output_bytes += scsi_bufflen(cmd); 34 vha->qla_stats.output_requests++; 35 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 36 cflags = CF_READ; 37 vha->qla_stats.input_bytes += scsi_bufflen(cmd); 38 vha->qla_stats.input_requests++; 39 } 40 return (cflags); 41 } 42 43 /** 44 * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and 45 * Continuation Type 0 IOCBs to allocate. 46 * 47 * @dsds: number of data segment decriptors needed 48 * 49 * Returns the number of IOCB entries needed to store @dsds. 50 */ 51 uint16_t 52 qla2x00_calc_iocbs_32(uint16_t dsds) 53 { 54 uint16_t iocbs; 55 56 iocbs = 1; 57 if (dsds > 3) { 58 iocbs += (dsds - 3) / 7; 59 if ((dsds - 3) % 7) 60 iocbs++; 61 } 62 return (iocbs); 63 } 64 65 /** 66 * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and 67 * Continuation Type 1 IOCBs to allocate. 68 * 69 * @dsds: number of data segment decriptors needed 70 * 71 * Returns the number of IOCB entries needed to store @dsds. 72 */ 73 uint16_t 74 qla2x00_calc_iocbs_64(uint16_t dsds) 75 { 76 uint16_t iocbs; 77 78 iocbs = 1; 79 if (dsds > 2) { 80 iocbs += (dsds - 2) / 5; 81 if ((dsds - 2) % 5) 82 iocbs++; 83 } 84 return (iocbs); 85 } 86 87 /** 88 * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. 89 * @vha: HA context 90 * 91 * Returns a pointer to the Continuation Type 0 IOCB packet. 92 */ 93 static inline cont_entry_t * 94 qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) 95 { 96 cont_entry_t *cont_pkt; 97 struct req_que *req = vha->req; 98 /* Adjust ring index. */ 99 req->ring_index++; 100 if (req->ring_index == req->length) { 101 req->ring_index = 0; 102 req->ring_ptr = req->ring; 103 } else { 104 req->ring_ptr++; 105 } 106 107 cont_pkt = (cont_entry_t *)req->ring_ptr; 108 109 /* Load packet defaults. */ 110 *((uint32_t *)(&cont_pkt->entry_type)) = cpu_to_le32(CONTINUE_TYPE); 111 112 return (cont_pkt); 113 } 114 115 /** 116 * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. 117 * @vha: HA context 118 * @req: request queue 119 * 120 * Returns a pointer to the continuation type 1 IOCB packet. 121 */ 122 static inline cont_a64_entry_t * 123 qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) 124 { 125 cont_a64_entry_t *cont_pkt; 126 127 /* Adjust ring index. */ 128 req->ring_index++; 129 if (req->ring_index == req->length) { 130 req->ring_index = 0; 131 req->ring_ptr = req->ring; 132 } else { 133 req->ring_ptr++; 134 } 135 136 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 137 138 /* Load packet defaults. */ 139 *((uint32_t *)(&cont_pkt->entry_type)) = IS_QLAFX00(vha->hw) ? 140 cpu_to_le32(CONTINUE_A64_TYPE_FX00) : 141 cpu_to_le32(CONTINUE_A64_TYPE); 142 143 return (cont_pkt); 144 } 145 146 inline int 147 qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) 148 { 149 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 150 uint8_t guard = scsi_host_get_guard(cmd->device->host); 151 152 /* We always use DIFF Bundling for best performance */ 153 *fw_prot_opts = 0; 154 155 /* Translate SCSI opcode to a protection opcode */ 156 switch (scsi_get_prot_op(cmd)) { 157 case SCSI_PROT_READ_STRIP: 158 *fw_prot_opts |= PO_MODE_DIF_REMOVE; 159 break; 160 case SCSI_PROT_WRITE_INSERT: 161 *fw_prot_opts |= PO_MODE_DIF_INSERT; 162 break; 163 case SCSI_PROT_READ_INSERT: 164 *fw_prot_opts |= PO_MODE_DIF_INSERT; 165 break; 166 case SCSI_PROT_WRITE_STRIP: 167 *fw_prot_opts |= PO_MODE_DIF_REMOVE; 168 break; 169 case SCSI_PROT_READ_PASS: 170 case SCSI_PROT_WRITE_PASS: 171 if (guard & SHOST_DIX_GUARD_IP) 172 *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM; 173 else 174 *fw_prot_opts |= PO_MODE_DIF_PASS; 175 break; 176 default: /* Normal Request */ 177 *fw_prot_opts |= PO_MODE_DIF_PASS; 178 break; 179 } 180 181 return scsi_prot_sg_count(cmd); 182 } 183 184 /* 185 * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit 186 * capable IOCB types. 187 * 188 * @sp: SRB command to process 189 * @cmd_pkt: Command type 2 IOCB 190 * @tot_dsds: Total number of segments to transfer 191 */ 192 void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, 193 uint16_t tot_dsds) 194 { 195 uint16_t avail_dsds; 196 uint32_t *cur_dsd; 197 scsi_qla_host_t *vha; 198 struct scsi_cmnd *cmd; 199 struct scatterlist *sg; 200 int i; 201 202 cmd = GET_CMD_SP(sp); 203 204 /* Update entry type to indicate Command Type 2 IOCB */ 205 *((uint32_t *)(&cmd_pkt->entry_type)) = 206 cpu_to_le32(COMMAND_TYPE); 207 208 /* No data transfer */ 209 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 210 cmd_pkt->byte_count = cpu_to_le32(0); 211 return; 212 } 213 214 vha = sp->vha; 215 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); 216 217 /* Three DSDs are available in the Command Type 2 IOCB */ 218 avail_dsds = 3; 219 cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; 220 221 /* Load data segments */ 222 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 223 cont_entry_t *cont_pkt; 224 225 /* Allocate additional continuation packets? */ 226 if (avail_dsds == 0) { 227 /* 228 * Seven DSDs are available in the Continuation 229 * Type 0 IOCB. 230 */ 231 cont_pkt = qla2x00_prep_cont_type0_iocb(vha); 232 cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; 233 avail_dsds = 7; 234 } 235 236 *cur_dsd++ = cpu_to_le32(sg_dma_address(sg)); 237 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 238 avail_dsds--; 239 } 240 } 241 242 /** 243 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit 244 * capable IOCB types. 245 * 246 * @sp: SRB command to process 247 * @cmd_pkt: Command type 3 IOCB 248 * @tot_dsds: Total number of segments to transfer 249 */ 250 void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, 251 uint16_t tot_dsds) 252 { 253 uint16_t avail_dsds; 254 uint32_t *cur_dsd; 255 scsi_qla_host_t *vha; 256 struct scsi_cmnd *cmd; 257 struct scatterlist *sg; 258 int i; 259 260 cmd = GET_CMD_SP(sp); 261 262 /* Update entry type to indicate Command Type 3 IOCB */ 263 *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_A64_TYPE); 264 265 /* No data transfer */ 266 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 267 cmd_pkt->byte_count = cpu_to_le32(0); 268 return; 269 } 270 271 vha = sp->vha; 272 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); 273 274 /* Two DSDs are available in the Command Type 3 IOCB */ 275 avail_dsds = 2; 276 cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; 277 278 /* Load data segments */ 279 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 280 dma_addr_t sle_dma; 281 cont_a64_entry_t *cont_pkt; 282 283 /* Allocate additional continuation packets? */ 284 if (avail_dsds == 0) { 285 /* 286 * Five DSDs are available in the Continuation 287 * Type 1 IOCB. 288 */ 289 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 290 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; 291 avail_dsds = 5; 292 } 293 294 sle_dma = sg_dma_address(sg); 295 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 296 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 297 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 298 avail_dsds--; 299 } 300 } 301 302 /** 303 * qla2x00_start_scsi() - Send a SCSI command to the ISP 304 * @sp: command to send to the ISP 305 * 306 * Returns non-zero if a failure occurred, else zero. 307 */ 308 int 309 qla2x00_start_scsi(srb_t *sp) 310 { 311 int nseg; 312 unsigned long flags; 313 scsi_qla_host_t *vha; 314 struct scsi_cmnd *cmd; 315 uint32_t *clr_ptr; 316 uint32_t index; 317 uint32_t handle; 318 cmd_entry_t *cmd_pkt; 319 uint16_t cnt; 320 uint16_t req_cnt; 321 uint16_t tot_dsds; 322 struct device_reg_2xxx __iomem *reg; 323 struct qla_hw_data *ha; 324 struct req_que *req; 325 struct rsp_que *rsp; 326 327 /* Setup device pointers. */ 328 vha = sp->vha; 329 ha = vha->hw; 330 reg = &ha->iobase->isp; 331 cmd = GET_CMD_SP(sp); 332 req = ha->req_q_map[0]; 333 rsp = ha->rsp_q_map[0]; 334 /* So we know we haven't pci_map'ed anything yet */ 335 tot_dsds = 0; 336 337 /* Send marker if required */ 338 if (vha->marker_needed != 0) { 339 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != 340 QLA_SUCCESS) { 341 return (QLA_FUNCTION_FAILED); 342 } 343 vha->marker_needed = 0; 344 } 345 346 /* Acquire ring specific lock */ 347 spin_lock_irqsave(&ha->hardware_lock, flags); 348 349 /* Check for room in outstanding command list. */ 350 handle = req->current_outstanding_cmd; 351 for (index = 1; index < req->num_outstanding_cmds; index++) { 352 handle++; 353 if (handle == req->num_outstanding_cmds) 354 handle = 1; 355 if (!req->outstanding_cmds[handle]) 356 break; 357 } 358 if (index == req->num_outstanding_cmds) 359 goto queuing_error; 360 361 /* Map the sg table so we have an accurate count of sg entries needed */ 362 if (scsi_sg_count(cmd)) { 363 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 364 scsi_sg_count(cmd), cmd->sc_data_direction); 365 if (unlikely(!nseg)) 366 goto queuing_error; 367 } else 368 nseg = 0; 369 370 tot_dsds = nseg; 371 372 /* Calculate the number of request entries needed. */ 373 req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); 374 if (req->cnt < (req_cnt + 2)) { 375 cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); 376 if (req->ring_index < cnt) 377 req->cnt = cnt - req->ring_index; 378 else 379 req->cnt = req->length - 380 (req->ring_index - cnt); 381 /* If still no head room then bail out */ 382 if (req->cnt < (req_cnt + 2)) 383 goto queuing_error; 384 } 385 386 /* Build command packet */ 387 req->current_outstanding_cmd = handle; 388 req->outstanding_cmds[handle] = sp; 389 sp->handle = handle; 390 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 391 req->cnt -= req_cnt; 392 393 cmd_pkt = (cmd_entry_t *)req->ring_ptr; 394 cmd_pkt->handle = handle; 395 /* Zero out remaining portion of packet. */ 396 clr_ptr = (uint32_t *)cmd_pkt + 2; 397 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 398 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 399 400 /* Set target ID and LUN number*/ 401 SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); 402 cmd_pkt->lun = cpu_to_le16(cmd->device->lun); 403 cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG); 404 405 /* Load SCSI command packet. */ 406 memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); 407 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 408 409 /* Build IOCB segments */ 410 ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); 411 412 /* Set total data segment count. */ 413 cmd_pkt->entry_count = (uint8_t)req_cnt; 414 wmb(); 415 416 /* Adjust ring index. */ 417 req->ring_index++; 418 if (req->ring_index == req->length) { 419 req->ring_index = 0; 420 req->ring_ptr = req->ring; 421 } else 422 req->ring_ptr++; 423 424 sp->flags |= SRB_DMA_VALID; 425 426 /* Set chip new ring index. */ 427 WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); 428 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ 429 430 /* Manage unprocessed RIO/ZIO commands in response queue. */ 431 if (vha->flags.process_response_queue && 432 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 433 qla2x00_process_response_queue(rsp); 434 435 spin_unlock_irqrestore(&ha->hardware_lock, flags); 436 return (QLA_SUCCESS); 437 438 queuing_error: 439 if (tot_dsds) 440 scsi_dma_unmap(cmd); 441 442 spin_unlock_irqrestore(&ha->hardware_lock, flags); 443 444 return (QLA_FUNCTION_FAILED); 445 } 446 447 /** 448 * qla2x00_start_iocbs() - Execute the IOCB command 449 * @vha: HA context 450 * @req: request queue 451 */ 452 void 453 qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) 454 { 455 struct qla_hw_data *ha = vha->hw; 456 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 457 458 if (IS_P3P_TYPE(ha)) { 459 qla82xx_start_iocbs(vha); 460 } else { 461 /* Adjust ring index. */ 462 req->ring_index++; 463 if (req->ring_index == req->length) { 464 req->ring_index = 0; 465 req->ring_ptr = req->ring; 466 } else 467 req->ring_ptr++; 468 469 /* Set chip new ring index. */ 470 if (ha->mqenable || IS_QLA27XX(ha)) { 471 WRT_REG_DWORD(req->req_q_in, req->ring_index); 472 } else if (IS_QLA83XX(ha)) { 473 WRT_REG_DWORD(req->req_q_in, req->ring_index); 474 RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); 475 } else if (IS_QLAFX00(ha)) { 476 WRT_REG_DWORD(®->ispfx00.req_q_in, req->ring_index); 477 RD_REG_DWORD_RELAXED(®->ispfx00.req_q_in); 478 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); 479 } else if (IS_FWI2_CAPABLE(ha)) { 480 WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); 481 RD_REG_DWORD_RELAXED(®->isp24.req_q_in); 482 } else { 483 WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), 484 req->ring_index); 485 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); 486 } 487 } 488 } 489 490 /** 491 * qla2x00_marker() - Send a marker IOCB to the firmware. 492 * @vha: HA context 493 * @req: request queue 494 * @rsp: response queue 495 * @loop_id: loop ID 496 * @lun: LUN 497 * @type: marker modifier 498 * 499 * Can be called from both normal and interrupt context. 500 * 501 * Returns non-zero if a failure occurred, else zero. 502 */ 503 static int 504 __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, 505 struct rsp_que *rsp, uint16_t loop_id, 506 uint64_t lun, uint8_t type) 507 { 508 mrk_entry_t *mrk; 509 struct mrk_entry_24xx *mrk24 = NULL; 510 511 struct qla_hw_data *ha = vha->hw; 512 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 513 514 req = ha->req_q_map[0]; 515 mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, NULL); 516 if (mrk == NULL) { 517 ql_log(ql_log_warn, base_vha, 0x3026, 518 "Failed to allocate Marker IOCB.\n"); 519 520 return (QLA_FUNCTION_FAILED); 521 } 522 523 mrk->entry_type = MARKER_TYPE; 524 mrk->modifier = type; 525 if (type != MK_SYNC_ALL) { 526 if (IS_FWI2_CAPABLE(ha)) { 527 mrk24 = (struct mrk_entry_24xx *) mrk; 528 mrk24->nport_handle = cpu_to_le16(loop_id); 529 int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun); 530 host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); 531 mrk24->vp_index = vha->vp_idx; 532 mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); 533 } else { 534 SET_TARGET_ID(ha, mrk->target, loop_id); 535 mrk->lun = cpu_to_le16((uint16_t)lun); 536 } 537 } 538 wmb(); 539 540 qla2x00_start_iocbs(vha, req); 541 542 return (QLA_SUCCESS); 543 } 544 545 int 546 qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, 547 struct rsp_que *rsp, uint16_t loop_id, uint64_t lun, 548 uint8_t type) 549 { 550 int ret; 551 unsigned long flags = 0; 552 553 spin_lock_irqsave(&vha->hw->hardware_lock, flags); 554 ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); 555 spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); 556 557 return (ret); 558 } 559 560 /* 561 * qla2x00_issue_marker 562 * 563 * Issue marker 564 * Caller CAN have hardware lock held as specified by ha_locked parameter. 565 * Might release it, then reaquire. 566 */ 567 int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) 568 { 569 if (ha_locked) { 570 if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, 571 MK_SYNC_ALL) != QLA_SUCCESS) 572 return QLA_FUNCTION_FAILED; 573 } else { 574 if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, 575 MK_SYNC_ALL) != QLA_SUCCESS) 576 return QLA_FUNCTION_FAILED; 577 } 578 vha->marker_needed = 0; 579 580 return QLA_SUCCESS; 581 } 582 583 static inline int 584 qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, 585 uint16_t tot_dsds) 586 { 587 uint32_t *cur_dsd = NULL; 588 scsi_qla_host_t *vha; 589 struct qla_hw_data *ha; 590 struct scsi_cmnd *cmd; 591 struct scatterlist *cur_seg; 592 uint32_t *dsd_seg; 593 void *next_dsd; 594 uint8_t avail_dsds; 595 uint8_t first_iocb = 1; 596 uint32_t dsd_list_len; 597 struct dsd_dma *dsd_ptr; 598 struct ct6_dsd *ctx; 599 600 cmd = GET_CMD_SP(sp); 601 602 /* Update entry type to indicate Command Type 3 IOCB */ 603 *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_6); 604 605 /* No data transfer */ 606 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 607 cmd_pkt->byte_count = cpu_to_le32(0); 608 return 0; 609 } 610 611 vha = sp->vha; 612 ha = vha->hw; 613 614 /* Set transfer direction */ 615 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 616 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); 617 vha->qla_stats.output_bytes += scsi_bufflen(cmd); 618 vha->qla_stats.output_requests++; 619 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 620 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); 621 vha->qla_stats.input_bytes += scsi_bufflen(cmd); 622 vha->qla_stats.input_requests++; 623 } 624 625 cur_seg = scsi_sglist(cmd); 626 ctx = GET_CMD_CTX_SP(sp); 627 628 while (tot_dsds) { 629 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? 630 QLA_DSDS_PER_IOCB : tot_dsds; 631 tot_dsds -= avail_dsds; 632 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; 633 634 dsd_ptr = list_first_entry(&ha->gbl_dsd_list, 635 struct dsd_dma, list); 636 next_dsd = dsd_ptr->dsd_addr; 637 list_del(&dsd_ptr->list); 638 ha->gbl_dsd_avail--; 639 list_add_tail(&dsd_ptr->list, &ctx->dsd_list); 640 ctx->dsd_use_cnt++; 641 ha->gbl_dsd_inuse++; 642 643 if (first_iocb) { 644 first_iocb = 0; 645 dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; 646 *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); 647 *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); 648 cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len); 649 } else { 650 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); 651 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); 652 *cur_dsd++ = cpu_to_le32(dsd_list_len); 653 } 654 cur_dsd = (uint32_t *)next_dsd; 655 while (avail_dsds) { 656 dma_addr_t sle_dma; 657 658 sle_dma = sg_dma_address(cur_seg); 659 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 660 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 661 *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg)); 662 cur_seg = sg_next(cur_seg); 663 avail_dsds--; 664 } 665 } 666 667 /* Null termination */ 668 *cur_dsd++ = 0; 669 *cur_dsd++ = 0; 670 *cur_dsd++ = 0; 671 cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; 672 return 0; 673 } 674 675 /* 676 * qla24xx_calc_dsd_lists() - Determine number of DSD list required 677 * for Command Type 6. 678 * 679 * @dsds: number of data segment decriptors needed 680 * 681 * Returns the number of dsd list needed to store @dsds. 682 */ 683 static inline uint16_t 684 qla24xx_calc_dsd_lists(uint16_t dsds) 685 { 686 uint16_t dsd_lists = 0; 687 688 dsd_lists = (dsds/QLA_DSDS_PER_IOCB); 689 if (dsds % QLA_DSDS_PER_IOCB) 690 dsd_lists++; 691 return dsd_lists; 692 } 693 694 695 /** 696 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 697 * IOCB types. 698 * 699 * @sp: SRB command to process 700 * @cmd_pkt: Command type 3 IOCB 701 * @tot_dsds: Total number of segments to transfer 702 * @req: pointer to request queue 703 */ 704 inline void 705 qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, 706 uint16_t tot_dsds, struct req_que *req) 707 { 708 uint16_t avail_dsds; 709 uint32_t *cur_dsd; 710 scsi_qla_host_t *vha; 711 struct scsi_cmnd *cmd; 712 struct scatterlist *sg; 713 int i; 714 715 cmd = GET_CMD_SP(sp); 716 717 /* Update entry type to indicate Command Type 3 IOCB */ 718 *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_7); 719 720 /* No data transfer */ 721 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 722 cmd_pkt->byte_count = cpu_to_le32(0); 723 return; 724 } 725 726 vha = sp->vha; 727 728 /* Set transfer direction */ 729 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 730 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA); 731 vha->qla_stats.output_bytes += scsi_bufflen(cmd); 732 vha->qla_stats.output_requests++; 733 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 734 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA); 735 vha->qla_stats.input_bytes += scsi_bufflen(cmd); 736 vha->qla_stats.input_requests++; 737 } 738 739 /* One DSD is available in the Command Type 3 IOCB */ 740 avail_dsds = 1; 741 cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; 742 743 /* Load data segments */ 744 745 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 746 dma_addr_t sle_dma; 747 cont_a64_entry_t *cont_pkt; 748 749 /* Allocate additional continuation packets? */ 750 if (avail_dsds == 0) { 751 /* 752 * Five DSDs are available in the Continuation 753 * Type 1 IOCB. 754 */ 755 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req); 756 cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; 757 avail_dsds = 5; 758 } 759 760 sle_dma = sg_dma_address(sg); 761 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 762 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 763 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 764 avail_dsds--; 765 } 766 } 767 768 struct fw_dif_context { 769 uint32_t ref_tag; 770 uint16_t app_tag; 771 uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ 772 uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ 773 }; 774 775 /* 776 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command 777 * 778 */ 779 static inline void 780 qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, 781 unsigned int protcnt) 782 { 783 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 784 785 switch (scsi_get_prot_type(cmd)) { 786 case SCSI_PROT_DIF_TYPE0: 787 /* 788 * No check for ql2xenablehba_err_chk, as it would be an 789 * I/O error if hba tag generation is not done. 790 */ 791 pkt->ref_tag = cpu_to_le32((uint32_t) 792 (0xffffffff & scsi_get_lba(cmd))); 793 794 if (!qla2x00_hba_err_chk_enabled(sp)) 795 break; 796 797 pkt->ref_tag_mask[0] = 0xff; 798 pkt->ref_tag_mask[1] = 0xff; 799 pkt->ref_tag_mask[2] = 0xff; 800 pkt->ref_tag_mask[3] = 0xff; 801 break; 802 803 /* 804 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to 805 * match LBA in CDB + N 806 */ 807 case SCSI_PROT_DIF_TYPE2: 808 pkt->app_tag = cpu_to_le16(0); 809 pkt->app_tag_mask[0] = 0x0; 810 pkt->app_tag_mask[1] = 0x0; 811 812 pkt->ref_tag = cpu_to_le32((uint32_t) 813 (0xffffffff & scsi_get_lba(cmd))); 814 815 if (!qla2x00_hba_err_chk_enabled(sp)) 816 break; 817 818 /* enable ALL bytes of the ref tag */ 819 pkt->ref_tag_mask[0] = 0xff; 820 pkt->ref_tag_mask[1] = 0xff; 821 pkt->ref_tag_mask[2] = 0xff; 822 pkt->ref_tag_mask[3] = 0xff; 823 break; 824 825 /* For Type 3 protection: 16 bit GUARD only */ 826 case SCSI_PROT_DIF_TYPE3: 827 pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = 828 pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = 829 0x00; 830 break; 831 832 /* 833 * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and 834 * 16 bit app tag. 835 */ 836 case SCSI_PROT_DIF_TYPE1: 837 pkt->ref_tag = cpu_to_le32((uint32_t) 838 (0xffffffff & scsi_get_lba(cmd))); 839 pkt->app_tag = cpu_to_le16(0); 840 pkt->app_tag_mask[0] = 0x0; 841 pkt->app_tag_mask[1] = 0x0; 842 843 if (!qla2x00_hba_err_chk_enabled(sp)) 844 break; 845 846 /* enable ALL bytes of the ref tag */ 847 pkt->ref_tag_mask[0] = 0xff; 848 pkt->ref_tag_mask[1] = 0xff; 849 pkt->ref_tag_mask[2] = 0xff; 850 pkt->ref_tag_mask[3] = 0xff; 851 break; 852 } 853 } 854 855 int 856 qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, 857 uint32_t *partial) 858 { 859 struct scatterlist *sg; 860 uint32_t cumulative_partial, sg_len; 861 dma_addr_t sg_dma_addr; 862 863 if (sgx->num_bytes == sgx->tot_bytes) 864 return 0; 865 866 sg = sgx->cur_sg; 867 cumulative_partial = sgx->tot_partial; 868 869 sg_dma_addr = sg_dma_address(sg); 870 sg_len = sg_dma_len(sg); 871 872 sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; 873 874 if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { 875 sgx->dma_len = (blk_sz - cumulative_partial); 876 sgx->tot_partial = 0; 877 sgx->num_bytes += blk_sz; 878 *partial = 0; 879 } else { 880 sgx->dma_len = sg_len - sgx->bytes_consumed; 881 sgx->tot_partial += sgx->dma_len; 882 *partial = 1; 883 } 884 885 sgx->bytes_consumed += sgx->dma_len; 886 887 if (sg_len == sgx->bytes_consumed) { 888 sg = sg_next(sg); 889 sgx->num_sg++; 890 sgx->cur_sg = sg; 891 sgx->bytes_consumed = 0; 892 } 893 894 return 1; 895 } 896 897 int 898 qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, 899 uint32_t *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) 900 { 901 void *next_dsd; 902 uint8_t avail_dsds = 0; 903 uint32_t dsd_list_len; 904 struct dsd_dma *dsd_ptr; 905 struct scatterlist *sg_prot; 906 uint32_t *cur_dsd = dsd; 907 uint16_t used_dsds = tot_dsds; 908 uint32_t prot_int; /* protection interval */ 909 uint32_t partial; 910 struct qla2_sgx sgx; 911 dma_addr_t sle_dma; 912 uint32_t sle_dma_len, tot_prot_dma_len = 0; 913 struct scsi_cmnd *cmd; 914 915 memset(&sgx, 0, sizeof(struct qla2_sgx)); 916 if (sp) { 917 cmd = GET_CMD_SP(sp); 918 prot_int = cmd->device->sector_size; 919 920 sgx.tot_bytes = scsi_bufflen(cmd); 921 sgx.cur_sg = scsi_sglist(cmd); 922 sgx.sp = sp; 923 924 sg_prot = scsi_prot_sglist(cmd); 925 } else if (tc) { 926 prot_int = tc->blk_sz; 927 sgx.tot_bytes = tc->bufflen; 928 sgx.cur_sg = tc->sg; 929 sg_prot = tc->prot_sg; 930 } else { 931 BUG(); 932 return 1; 933 } 934 935 while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { 936 937 sle_dma = sgx.dma_addr; 938 sle_dma_len = sgx.dma_len; 939 alloc_and_fill: 940 /* Allocate additional continuation packets? */ 941 if (avail_dsds == 0) { 942 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 943 QLA_DSDS_PER_IOCB : used_dsds; 944 dsd_list_len = (avail_dsds + 1) * 12; 945 used_dsds -= avail_dsds; 946 947 /* allocate tracking DS */ 948 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 949 if (!dsd_ptr) 950 return 1; 951 952 /* allocate new list */ 953 dsd_ptr->dsd_addr = next_dsd = 954 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 955 &dsd_ptr->dsd_list_dma); 956 957 if (!next_dsd) { 958 /* 959 * Need to cleanup only this dsd_ptr, rest 960 * will be done by sp_free_dma() 961 */ 962 kfree(dsd_ptr); 963 return 1; 964 } 965 966 if (sp) { 967 list_add_tail(&dsd_ptr->list, 968 &((struct crc_context *) 969 sp->u.scmd.ctx)->dsd_list); 970 971 sp->flags |= SRB_CRC_CTX_DSD_VALID; 972 } else { 973 list_add_tail(&dsd_ptr->list, 974 &(tc->ctx->dsd_list)); 975 *tc->ctx_dsd_alloced = 1; 976 } 977 978 979 /* add new list to cmd iocb or last list */ 980 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); 981 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); 982 *cur_dsd++ = dsd_list_len; 983 cur_dsd = (uint32_t *)next_dsd; 984 } 985 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 986 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 987 *cur_dsd++ = cpu_to_le32(sle_dma_len); 988 avail_dsds--; 989 990 if (partial == 0) { 991 /* Got a full protection interval */ 992 sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; 993 sle_dma_len = 8; 994 995 tot_prot_dma_len += sle_dma_len; 996 if (tot_prot_dma_len == sg_dma_len(sg_prot)) { 997 tot_prot_dma_len = 0; 998 sg_prot = sg_next(sg_prot); 999 } 1000 1001 partial = 1; /* So as to not re-enter this block */ 1002 goto alloc_and_fill; 1003 } 1004 } 1005 /* Null termination */ 1006 *cur_dsd++ = 0; 1007 *cur_dsd++ = 0; 1008 *cur_dsd++ = 0; 1009 return 0; 1010 } 1011 1012 int 1013 qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, 1014 uint16_t tot_dsds, struct qla_tc_param *tc) 1015 { 1016 void *next_dsd; 1017 uint8_t avail_dsds = 0; 1018 uint32_t dsd_list_len; 1019 struct dsd_dma *dsd_ptr; 1020 struct scatterlist *sg, *sgl; 1021 uint32_t *cur_dsd = dsd; 1022 int i; 1023 uint16_t used_dsds = tot_dsds; 1024 struct scsi_cmnd *cmd; 1025 1026 if (sp) { 1027 cmd = GET_CMD_SP(sp); 1028 sgl = scsi_sglist(cmd); 1029 } else if (tc) { 1030 sgl = tc->sg; 1031 } else { 1032 BUG(); 1033 return 1; 1034 } 1035 1036 1037 for_each_sg(sgl, sg, tot_dsds, i) { 1038 dma_addr_t sle_dma; 1039 1040 /* Allocate additional continuation packets? */ 1041 if (avail_dsds == 0) { 1042 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1043 QLA_DSDS_PER_IOCB : used_dsds; 1044 dsd_list_len = (avail_dsds + 1) * 12; 1045 used_dsds -= avail_dsds; 1046 1047 /* allocate tracking DS */ 1048 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 1049 if (!dsd_ptr) 1050 return 1; 1051 1052 /* allocate new list */ 1053 dsd_ptr->dsd_addr = next_dsd = 1054 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1055 &dsd_ptr->dsd_list_dma); 1056 1057 if (!next_dsd) { 1058 /* 1059 * Need to cleanup only this dsd_ptr, rest 1060 * will be done by sp_free_dma() 1061 */ 1062 kfree(dsd_ptr); 1063 return 1; 1064 } 1065 1066 if (sp) { 1067 list_add_tail(&dsd_ptr->list, 1068 &((struct crc_context *) 1069 sp->u.scmd.ctx)->dsd_list); 1070 1071 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1072 } else { 1073 list_add_tail(&dsd_ptr->list, 1074 &(tc->ctx->dsd_list)); 1075 *tc->ctx_dsd_alloced = 1; 1076 } 1077 1078 /* add new list to cmd iocb or last list */ 1079 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); 1080 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); 1081 *cur_dsd++ = dsd_list_len; 1082 cur_dsd = (uint32_t *)next_dsd; 1083 } 1084 sle_dma = sg_dma_address(sg); 1085 1086 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 1087 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 1088 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 1089 avail_dsds--; 1090 1091 } 1092 /* Null termination */ 1093 *cur_dsd++ = 0; 1094 *cur_dsd++ = 0; 1095 *cur_dsd++ = 0; 1096 return 0; 1097 } 1098 1099 int 1100 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, 1101 uint32_t *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) 1102 { 1103 void *next_dsd; 1104 uint8_t avail_dsds = 0; 1105 uint32_t dsd_list_len; 1106 struct dsd_dma *dsd_ptr; 1107 struct scatterlist *sg, *sgl; 1108 int i; 1109 struct scsi_cmnd *cmd; 1110 uint32_t *cur_dsd = dsd; 1111 uint16_t used_dsds = tot_dsds; 1112 struct scsi_qla_host *vha; 1113 1114 if (sp) { 1115 cmd = GET_CMD_SP(sp); 1116 sgl = scsi_prot_sglist(cmd); 1117 vha = sp->vha; 1118 } else if (tc) { 1119 vha = tc->vha; 1120 sgl = tc->prot_sg; 1121 } else { 1122 BUG(); 1123 return 1; 1124 } 1125 1126 ql_dbg(ql_dbg_tgt, vha, 0xe021, 1127 "%s: enter\n", __func__); 1128 1129 for_each_sg(sgl, sg, tot_dsds, i) { 1130 dma_addr_t sle_dma; 1131 1132 /* Allocate additional continuation packets? */ 1133 if (avail_dsds == 0) { 1134 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1135 QLA_DSDS_PER_IOCB : used_dsds; 1136 dsd_list_len = (avail_dsds + 1) * 12; 1137 used_dsds -= avail_dsds; 1138 1139 /* allocate tracking DS */ 1140 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 1141 if (!dsd_ptr) 1142 return 1; 1143 1144 /* allocate new list */ 1145 dsd_ptr->dsd_addr = next_dsd = 1146 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1147 &dsd_ptr->dsd_list_dma); 1148 1149 if (!next_dsd) { 1150 /* 1151 * Need to cleanup only this dsd_ptr, rest 1152 * will be done by sp_free_dma() 1153 */ 1154 kfree(dsd_ptr); 1155 return 1; 1156 } 1157 1158 if (sp) { 1159 list_add_tail(&dsd_ptr->list, 1160 &((struct crc_context *) 1161 sp->u.scmd.ctx)->dsd_list); 1162 1163 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1164 } else { 1165 list_add_tail(&dsd_ptr->list, 1166 &(tc->ctx->dsd_list)); 1167 *tc->ctx_dsd_alloced = 1; 1168 } 1169 1170 /* add new list to cmd iocb or last list */ 1171 *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); 1172 *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); 1173 *cur_dsd++ = dsd_list_len; 1174 cur_dsd = (uint32_t *)next_dsd; 1175 } 1176 sle_dma = sg_dma_address(sg); 1177 1178 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 1179 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 1180 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 1181 1182 avail_dsds--; 1183 } 1184 /* Null termination */ 1185 *cur_dsd++ = 0; 1186 *cur_dsd++ = 0; 1187 *cur_dsd++ = 0; 1188 return 0; 1189 } 1190 1191 /** 1192 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command 1193 * Type 6 IOCB types. 1194 * 1195 * @sp: SRB command to process 1196 * @cmd_pkt: Command type 3 IOCB 1197 * @tot_dsds: Total number of segments to transfer 1198 * @tot_prot_dsds: 1199 * @fw_prot_opts: 1200 */ 1201 inline int 1202 qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, 1203 uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) 1204 { 1205 uint32_t *cur_dsd, *fcp_dl; 1206 scsi_qla_host_t *vha; 1207 struct scsi_cmnd *cmd; 1208 uint32_t total_bytes = 0; 1209 uint32_t data_bytes; 1210 uint32_t dif_bytes; 1211 uint8_t bundling = 1; 1212 uint16_t blk_size; 1213 struct crc_context *crc_ctx_pkt = NULL; 1214 struct qla_hw_data *ha; 1215 uint8_t additional_fcpcdb_len; 1216 uint16_t fcp_cmnd_len; 1217 struct fcp_cmnd *fcp_cmnd; 1218 dma_addr_t crc_ctx_dma; 1219 1220 cmd = GET_CMD_SP(sp); 1221 1222 /* Update entry type to indicate Command Type CRC_2 IOCB */ 1223 *((uint32_t *)(&cmd_pkt->entry_type)) = cpu_to_le32(COMMAND_TYPE_CRC_2); 1224 1225 vha = sp->vha; 1226 ha = vha->hw; 1227 1228 /* No data transfer */ 1229 data_bytes = scsi_bufflen(cmd); 1230 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { 1231 cmd_pkt->byte_count = cpu_to_le32(0); 1232 return QLA_SUCCESS; 1233 } 1234 1235 cmd_pkt->vp_index = sp->vha->vp_idx; 1236 1237 /* Set transfer direction */ 1238 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 1239 cmd_pkt->control_flags = 1240 cpu_to_le16(CF_WRITE_DATA); 1241 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 1242 cmd_pkt->control_flags = 1243 cpu_to_le16(CF_READ_DATA); 1244 } 1245 1246 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1247 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || 1248 (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || 1249 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) 1250 bundling = 0; 1251 1252 /* Allocate CRC context from global pool */ 1253 crc_ctx_pkt = sp->u.scmd.ctx = 1254 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); 1255 1256 if (!crc_ctx_pkt) 1257 goto crc_queuing_error; 1258 1259 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; 1260 1261 sp->flags |= SRB_CRC_CTX_DMA_VALID; 1262 1263 /* Set handle */ 1264 crc_ctx_pkt->handle = cmd_pkt->handle; 1265 1266 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); 1267 1268 qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) 1269 &crc_ctx_pkt->ref_tag, tot_prot_dsds); 1270 1271 cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); 1272 cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); 1273 cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; 1274 1275 /* Determine SCSI command length -- align to 4 byte boundary */ 1276 if (cmd->cmd_len > 16) { 1277 additional_fcpcdb_len = cmd->cmd_len - 16; 1278 if ((cmd->cmd_len % 4) != 0) { 1279 /* SCSI cmd > 16 bytes must be multiple of 4 */ 1280 goto crc_queuing_error; 1281 } 1282 fcp_cmnd_len = 12 + cmd->cmd_len + 4; 1283 } else { 1284 additional_fcpcdb_len = 0; 1285 fcp_cmnd_len = 12 + 16 + 4; 1286 } 1287 1288 fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; 1289 1290 fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; 1291 if (cmd->sc_data_direction == DMA_TO_DEVICE) 1292 fcp_cmnd->additional_cdb_len |= 1; 1293 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 1294 fcp_cmnd->additional_cdb_len |= 2; 1295 1296 int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); 1297 memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 1298 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); 1299 cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( 1300 LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); 1301 cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( 1302 MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); 1303 fcp_cmnd->task_management = 0; 1304 fcp_cmnd->task_attribute = TSK_SIMPLE; 1305 1306 cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ 1307 1308 /* Compute dif len and adjust data len to incude protection */ 1309 dif_bytes = 0; 1310 blk_size = cmd->device->sector_size; 1311 dif_bytes = (data_bytes / blk_size) * 8; 1312 1313 switch (scsi_get_prot_op(GET_CMD_SP(sp))) { 1314 case SCSI_PROT_READ_INSERT: 1315 case SCSI_PROT_WRITE_STRIP: 1316 total_bytes = data_bytes; 1317 data_bytes += dif_bytes; 1318 break; 1319 1320 case SCSI_PROT_READ_STRIP: 1321 case SCSI_PROT_WRITE_INSERT: 1322 case SCSI_PROT_READ_PASS: 1323 case SCSI_PROT_WRITE_PASS: 1324 total_bytes = data_bytes + dif_bytes; 1325 break; 1326 default: 1327 BUG(); 1328 } 1329 1330 if (!qla2x00_hba_err_chk_enabled(sp)) 1331 fw_prot_opts |= 0x10; /* Disable Guard tag checking */ 1332 /* HBA error checking enabled */ 1333 else if (IS_PI_UNINIT_CAPABLE(ha)) { 1334 if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) 1335 || (scsi_get_prot_type(GET_CMD_SP(sp)) == 1336 SCSI_PROT_DIF_TYPE2)) 1337 fw_prot_opts |= BIT_10; 1338 else if (scsi_get_prot_type(GET_CMD_SP(sp)) == 1339 SCSI_PROT_DIF_TYPE3) 1340 fw_prot_opts |= BIT_11; 1341 } 1342 1343 if (!bundling) { 1344 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; 1345 } else { 1346 /* 1347 * Configure Bundling if we need to fetch interlaving 1348 * protection PCI accesses 1349 */ 1350 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; 1351 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); 1352 crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - 1353 tot_prot_dsds); 1354 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; 1355 } 1356 1357 /* Finish the common fields of CRC pkt */ 1358 crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); 1359 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); 1360 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); 1361 crc_ctx_pkt->guard_seed = cpu_to_le16(0); 1362 /* Fibre channel byte count */ 1363 cmd_pkt->byte_count = cpu_to_le32(total_bytes); 1364 fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + 1365 additional_fcpcdb_len); 1366 *fcp_dl = htonl(total_bytes); 1367 1368 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { 1369 cmd_pkt->byte_count = cpu_to_le32(0); 1370 return QLA_SUCCESS; 1371 } 1372 /* Walks data segments */ 1373 1374 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); 1375 1376 if (!bundling && tot_prot_dsds) { 1377 if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, 1378 cur_dsd, tot_dsds, NULL)) 1379 goto crc_queuing_error; 1380 } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, 1381 (tot_dsds - tot_prot_dsds), NULL)) 1382 goto crc_queuing_error; 1383 1384 if (bundling && tot_prot_dsds) { 1385 /* Walks dif segments */ 1386 cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); 1387 cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; 1388 if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, 1389 tot_prot_dsds, NULL)) 1390 goto crc_queuing_error; 1391 } 1392 return QLA_SUCCESS; 1393 1394 crc_queuing_error: 1395 /* Cleanup will be performed by the caller */ 1396 1397 return QLA_FUNCTION_FAILED; 1398 } 1399 1400 /** 1401 * qla24xx_start_scsi() - Send a SCSI command to the ISP 1402 * @sp: command to send to the ISP 1403 * 1404 * Returns non-zero if a failure occurred, else zero. 1405 */ 1406 int 1407 qla24xx_start_scsi(srb_t *sp) 1408 { 1409 int nseg; 1410 unsigned long flags; 1411 uint32_t *clr_ptr; 1412 uint32_t index; 1413 uint32_t handle; 1414 struct cmd_type_7 *cmd_pkt; 1415 uint16_t cnt; 1416 uint16_t req_cnt; 1417 uint16_t tot_dsds; 1418 struct req_que *req = NULL; 1419 struct rsp_que *rsp = NULL; 1420 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1421 struct scsi_qla_host *vha = sp->vha; 1422 struct qla_hw_data *ha = vha->hw; 1423 1424 /* Setup device pointers. */ 1425 req = vha->req; 1426 rsp = req->rsp; 1427 1428 /* So we know we haven't pci_map'ed anything yet */ 1429 tot_dsds = 0; 1430 1431 /* Send marker if required */ 1432 if (vha->marker_needed != 0) { 1433 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != 1434 QLA_SUCCESS) 1435 return QLA_FUNCTION_FAILED; 1436 vha->marker_needed = 0; 1437 } 1438 1439 /* Acquire ring specific lock */ 1440 spin_lock_irqsave(&ha->hardware_lock, flags); 1441 1442 /* Check for room in outstanding command list. */ 1443 handle = req->current_outstanding_cmd; 1444 for (index = 1; index < req->num_outstanding_cmds; index++) { 1445 handle++; 1446 if (handle == req->num_outstanding_cmds) 1447 handle = 1; 1448 if (!req->outstanding_cmds[handle]) 1449 break; 1450 } 1451 if (index == req->num_outstanding_cmds) 1452 goto queuing_error; 1453 1454 /* Map the sg table so we have an accurate count of sg entries needed */ 1455 if (scsi_sg_count(cmd)) { 1456 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1457 scsi_sg_count(cmd), cmd->sc_data_direction); 1458 if (unlikely(!nseg)) 1459 goto queuing_error; 1460 } else 1461 nseg = 0; 1462 1463 tot_dsds = nseg; 1464 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1465 if (req->cnt < (req_cnt + 2)) { 1466 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 1467 RD_REG_DWORD_RELAXED(req->req_q_out); 1468 if (req->ring_index < cnt) 1469 req->cnt = cnt - req->ring_index; 1470 else 1471 req->cnt = req->length - 1472 (req->ring_index - cnt); 1473 if (req->cnt < (req_cnt + 2)) 1474 goto queuing_error; 1475 } 1476 1477 /* Build command packet. */ 1478 req->current_outstanding_cmd = handle; 1479 req->outstanding_cmds[handle] = sp; 1480 sp->handle = handle; 1481 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1482 req->cnt -= req_cnt; 1483 1484 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1485 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 1486 1487 /* Zero out remaining portion of packet. */ 1488 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1489 clr_ptr = (uint32_t *)cmd_pkt + 2; 1490 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1491 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1492 1493 /* Set NPORT-ID and LUN number*/ 1494 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1495 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1496 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1497 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1498 cmd_pkt->vp_index = sp->vha->vp_idx; 1499 1500 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1501 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1502 1503 cmd_pkt->task = TSK_SIMPLE; 1504 1505 /* Load SCSI command packet. */ 1506 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 1507 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 1508 1509 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 1510 1511 /* Build IOCB segments */ 1512 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 1513 1514 /* Set total data segment count. */ 1515 cmd_pkt->entry_count = (uint8_t)req_cnt; 1516 wmb(); 1517 /* Adjust ring index. */ 1518 req->ring_index++; 1519 if (req->ring_index == req->length) { 1520 req->ring_index = 0; 1521 req->ring_ptr = req->ring; 1522 } else 1523 req->ring_ptr++; 1524 1525 sp->flags |= SRB_DMA_VALID; 1526 1527 /* Set chip new ring index. */ 1528 WRT_REG_DWORD(req->req_q_in, req->ring_index); 1529 RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); 1530 1531 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1532 if (vha->flags.process_response_queue && 1533 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1534 qla24xx_process_response_queue(vha, rsp); 1535 1536 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1537 return QLA_SUCCESS; 1538 1539 queuing_error: 1540 if (tot_dsds) 1541 scsi_dma_unmap(cmd); 1542 1543 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1544 1545 return QLA_FUNCTION_FAILED; 1546 } 1547 1548 /** 1549 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP 1550 * @sp: command to send to the ISP 1551 * 1552 * Returns non-zero if a failure occurred, else zero. 1553 */ 1554 int 1555 qla24xx_dif_start_scsi(srb_t *sp) 1556 { 1557 int nseg; 1558 unsigned long flags; 1559 uint32_t *clr_ptr; 1560 uint32_t index; 1561 uint32_t handle; 1562 uint16_t cnt; 1563 uint16_t req_cnt = 0; 1564 uint16_t tot_dsds; 1565 uint16_t tot_prot_dsds; 1566 uint16_t fw_prot_opts = 0; 1567 struct req_que *req = NULL; 1568 struct rsp_que *rsp = NULL; 1569 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1570 struct scsi_qla_host *vha = sp->vha; 1571 struct qla_hw_data *ha = vha->hw; 1572 struct cmd_type_crc_2 *cmd_pkt; 1573 uint32_t status = 0; 1574 1575 #define QDSS_GOT_Q_SPACE BIT_0 1576 1577 /* Only process protection or >16 cdb in this routine */ 1578 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 1579 if (cmd->cmd_len <= 16) 1580 return qla24xx_start_scsi(sp); 1581 } 1582 1583 /* Setup device pointers. */ 1584 req = vha->req; 1585 rsp = req->rsp; 1586 1587 /* So we know we haven't pci_map'ed anything yet */ 1588 tot_dsds = 0; 1589 1590 /* Send marker if required */ 1591 if (vha->marker_needed != 0) { 1592 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != 1593 QLA_SUCCESS) 1594 return QLA_FUNCTION_FAILED; 1595 vha->marker_needed = 0; 1596 } 1597 1598 /* Acquire ring specific lock */ 1599 spin_lock_irqsave(&ha->hardware_lock, flags); 1600 1601 /* Check for room in outstanding command list. */ 1602 handle = req->current_outstanding_cmd; 1603 for (index = 1; index < req->num_outstanding_cmds; index++) { 1604 handle++; 1605 if (handle == req->num_outstanding_cmds) 1606 handle = 1; 1607 if (!req->outstanding_cmds[handle]) 1608 break; 1609 } 1610 1611 if (index == req->num_outstanding_cmds) 1612 goto queuing_error; 1613 1614 /* Compute number of required data segments */ 1615 /* Map the sg table so we have an accurate count of sg entries needed */ 1616 if (scsi_sg_count(cmd)) { 1617 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1618 scsi_sg_count(cmd), cmd->sc_data_direction); 1619 if (unlikely(!nseg)) 1620 goto queuing_error; 1621 else 1622 sp->flags |= SRB_DMA_VALID; 1623 1624 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1625 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1626 struct qla2_sgx sgx; 1627 uint32_t partial; 1628 1629 memset(&sgx, 0, sizeof(struct qla2_sgx)); 1630 sgx.tot_bytes = scsi_bufflen(cmd); 1631 sgx.cur_sg = scsi_sglist(cmd); 1632 sgx.sp = sp; 1633 1634 nseg = 0; 1635 while (qla24xx_get_one_block_sg( 1636 cmd->device->sector_size, &sgx, &partial)) 1637 nseg++; 1638 } 1639 } else 1640 nseg = 0; 1641 1642 /* number of required data segments */ 1643 tot_dsds = nseg; 1644 1645 /* Compute number of required protection segments */ 1646 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 1647 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 1648 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 1649 if (unlikely(!nseg)) 1650 goto queuing_error; 1651 else 1652 sp->flags |= SRB_CRC_PROT_DMA_VALID; 1653 1654 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1655 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1656 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 1657 } 1658 } else { 1659 nseg = 0; 1660 } 1661 1662 req_cnt = 1; 1663 /* Total Data and protection sg segment(s) */ 1664 tot_prot_dsds = nseg; 1665 tot_dsds += nseg; 1666 if (req->cnt < (req_cnt + 2)) { 1667 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 1668 RD_REG_DWORD_RELAXED(req->req_q_out); 1669 if (req->ring_index < cnt) 1670 req->cnt = cnt - req->ring_index; 1671 else 1672 req->cnt = req->length - 1673 (req->ring_index - cnt); 1674 if (req->cnt < (req_cnt + 2)) 1675 goto queuing_error; 1676 } 1677 1678 status |= QDSS_GOT_Q_SPACE; 1679 1680 /* Build header part of command packet (excluding the OPCODE). */ 1681 req->current_outstanding_cmd = handle; 1682 req->outstanding_cmds[handle] = sp; 1683 sp->handle = handle; 1684 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1685 req->cnt -= req_cnt; 1686 1687 /* Fill-in common area */ 1688 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 1689 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 1690 1691 clr_ptr = (uint32_t *)cmd_pkt + 2; 1692 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1693 1694 /* Set NPORT-ID and LUN number*/ 1695 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1696 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1697 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1698 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1699 1700 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1701 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1702 1703 /* Total Data and protection segment(s) */ 1704 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1705 1706 /* Build IOCB segments and adjust for data protection segments */ 1707 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 1708 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 1709 QLA_SUCCESS) 1710 goto queuing_error; 1711 1712 cmd_pkt->entry_count = (uint8_t)req_cnt; 1713 /* Specify response queue number where completion should happen */ 1714 cmd_pkt->entry_status = (uint8_t) rsp->id; 1715 cmd_pkt->timeout = cpu_to_le16(0); 1716 wmb(); 1717 1718 /* Adjust ring index. */ 1719 req->ring_index++; 1720 if (req->ring_index == req->length) { 1721 req->ring_index = 0; 1722 req->ring_ptr = req->ring; 1723 } else 1724 req->ring_ptr++; 1725 1726 /* Set chip new ring index. */ 1727 WRT_REG_DWORD(req->req_q_in, req->ring_index); 1728 RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); 1729 1730 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1731 if (vha->flags.process_response_queue && 1732 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1733 qla24xx_process_response_queue(vha, rsp); 1734 1735 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1736 1737 return QLA_SUCCESS; 1738 1739 queuing_error: 1740 if (status & QDSS_GOT_Q_SPACE) { 1741 req->outstanding_cmds[handle] = NULL; 1742 req->cnt += req_cnt; 1743 } 1744 /* Cleanup will be performed by the caller (queuecommand) */ 1745 1746 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1747 return QLA_FUNCTION_FAILED; 1748 } 1749 1750 /** 1751 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP 1752 * @sp: command to send to the ISP 1753 * 1754 * Returns non-zero if a failure occurred, else zero. 1755 */ 1756 static int 1757 qla2xxx_start_scsi_mq(srb_t *sp) 1758 { 1759 int nseg; 1760 unsigned long flags; 1761 uint32_t *clr_ptr; 1762 uint32_t index; 1763 uint32_t handle; 1764 struct cmd_type_7 *cmd_pkt; 1765 uint16_t cnt; 1766 uint16_t req_cnt; 1767 uint16_t tot_dsds; 1768 struct req_que *req = NULL; 1769 struct rsp_que *rsp = NULL; 1770 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1771 struct scsi_qla_host *vha = sp->fcport->vha; 1772 struct qla_hw_data *ha = vha->hw; 1773 struct qla_qpair *qpair = sp->qpair; 1774 1775 /* Acquire qpair specific lock */ 1776 spin_lock_irqsave(&qpair->qp_lock, flags); 1777 1778 /* Setup qpair pointers */ 1779 rsp = qpair->rsp; 1780 req = qpair->req; 1781 1782 /* So we know we haven't pci_map'ed anything yet */ 1783 tot_dsds = 0; 1784 1785 /* Send marker if required */ 1786 if (vha->marker_needed != 0) { 1787 if (__qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != 1788 QLA_SUCCESS) { 1789 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1790 return QLA_FUNCTION_FAILED; 1791 } 1792 vha->marker_needed = 0; 1793 } 1794 1795 /* Check for room in outstanding command list. */ 1796 handle = req->current_outstanding_cmd; 1797 for (index = 1; index < req->num_outstanding_cmds; index++) { 1798 handle++; 1799 if (handle == req->num_outstanding_cmds) 1800 handle = 1; 1801 if (!req->outstanding_cmds[handle]) 1802 break; 1803 } 1804 if (index == req->num_outstanding_cmds) 1805 goto queuing_error; 1806 1807 /* Map the sg table so we have an accurate count of sg entries needed */ 1808 if (scsi_sg_count(cmd)) { 1809 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1810 scsi_sg_count(cmd), cmd->sc_data_direction); 1811 if (unlikely(!nseg)) 1812 goto queuing_error; 1813 } else 1814 nseg = 0; 1815 1816 tot_dsds = nseg; 1817 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1818 if (req->cnt < (req_cnt + 2)) { 1819 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 1820 RD_REG_DWORD_RELAXED(req->req_q_out); 1821 if (req->ring_index < cnt) 1822 req->cnt = cnt - req->ring_index; 1823 else 1824 req->cnt = req->length - 1825 (req->ring_index - cnt); 1826 if (req->cnt < (req_cnt + 2)) 1827 goto queuing_error; 1828 } 1829 1830 /* Build command packet. */ 1831 req->current_outstanding_cmd = handle; 1832 req->outstanding_cmds[handle] = sp; 1833 sp->handle = handle; 1834 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1835 req->cnt -= req_cnt; 1836 1837 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1838 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 1839 1840 /* Zero out remaining portion of packet. */ 1841 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1842 clr_ptr = (uint32_t *)cmd_pkt + 2; 1843 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1844 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1845 1846 /* Set NPORT-ID and LUN number*/ 1847 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1848 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1849 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1850 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1851 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 1852 1853 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1854 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1855 1856 cmd_pkt->task = TSK_SIMPLE; 1857 1858 /* Load SCSI command packet. */ 1859 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 1860 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 1861 1862 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 1863 1864 /* Build IOCB segments */ 1865 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 1866 1867 /* Set total data segment count. */ 1868 cmd_pkt->entry_count = (uint8_t)req_cnt; 1869 wmb(); 1870 /* Adjust ring index. */ 1871 req->ring_index++; 1872 if (req->ring_index == req->length) { 1873 req->ring_index = 0; 1874 req->ring_ptr = req->ring; 1875 } else 1876 req->ring_ptr++; 1877 1878 sp->flags |= SRB_DMA_VALID; 1879 1880 /* Set chip new ring index. */ 1881 WRT_REG_DWORD(req->req_q_in, req->ring_index); 1882 1883 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1884 if (vha->flags.process_response_queue && 1885 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1886 qla24xx_process_response_queue(vha, rsp); 1887 1888 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1889 return QLA_SUCCESS; 1890 1891 queuing_error: 1892 if (tot_dsds) 1893 scsi_dma_unmap(cmd); 1894 1895 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1896 1897 return QLA_FUNCTION_FAILED; 1898 } 1899 1900 1901 /** 1902 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP 1903 * @sp: command to send to the ISP 1904 * 1905 * Returns non-zero if a failure occurred, else zero. 1906 */ 1907 int 1908 qla2xxx_dif_start_scsi_mq(srb_t *sp) 1909 { 1910 int nseg; 1911 unsigned long flags; 1912 uint32_t *clr_ptr; 1913 uint32_t index; 1914 uint32_t handle; 1915 uint16_t cnt; 1916 uint16_t req_cnt = 0; 1917 uint16_t tot_dsds; 1918 uint16_t tot_prot_dsds; 1919 uint16_t fw_prot_opts = 0; 1920 struct req_que *req = NULL; 1921 struct rsp_que *rsp = NULL; 1922 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1923 struct scsi_qla_host *vha = sp->fcport->vha; 1924 struct qla_hw_data *ha = vha->hw; 1925 struct cmd_type_crc_2 *cmd_pkt; 1926 uint32_t status = 0; 1927 struct qla_qpair *qpair = sp->qpair; 1928 1929 #define QDSS_GOT_Q_SPACE BIT_0 1930 1931 /* Check for host side state */ 1932 if (!qpair->online) { 1933 cmd->result = DID_NO_CONNECT << 16; 1934 return QLA_INTERFACE_ERROR; 1935 } 1936 1937 if (!qpair->difdix_supported && 1938 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { 1939 cmd->result = DID_NO_CONNECT << 16; 1940 return QLA_INTERFACE_ERROR; 1941 } 1942 1943 /* Only process protection or >16 cdb in this routine */ 1944 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 1945 if (cmd->cmd_len <= 16) 1946 return qla2xxx_start_scsi_mq(sp); 1947 } 1948 1949 spin_lock_irqsave(&qpair->qp_lock, flags); 1950 1951 /* Setup qpair pointers */ 1952 rsp = qpair->rsp; 1953 req = qpair->req; 1954 1955 /* So we know we haven't pci_map'ed anything yet */ 1956 tot_dsds = 0; 1957 1958 /* Send marker if required */ 1959 if (vha->marker_needed != 0) { 1960 if (__qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != 1961 QLA_SUCCESS) { 1962 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1963 return QLA_FUNCTION_FAILED; 1964 } 1965 vha->marker_needed = 0; 1966 } 1967 1968 /* Check for room in outstanding command list. */ 1969 handle = req->current_outstanding_cmd; 1970 for (index = 1; index < req->num_outstanding_cmds; index++) { 1971 handle++; 1972 if (handle == req->num_outstanding_cmds) 1973 handle = 1; 1974 if (!req->outstanding_cmds[handle]) 1975 break; 1976 } 1977 1978 if (index == req->num_outstanding_cmds) 1979 goto queuing_error; 1980 1981 /* Compute number of required data segments */ 1982 /* Map the sg table so we have an accurate count of sg entries needed */ 1983 if (scsi_sg_count(cmd)) { 1984 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1985 scsi_sg_count(cmd), cmd->sc_data_direction); 1986 if (unlikely(!nseg)) 1987 goto queuing_error; 1988 else 1989 sp->flags |= SRB_DMA_VALID; 1990 1991 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1992 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1993 struct qla2_sgx sgx; 1994 uint32_t partial; 1995 1996 memset(&sgx, 0, sizeof(struct qla2_sgx)); 1997 sgx.tot_bytes = scsi_bufflen(cmd); 1998 sgx.cur_sg = scsi_sglist(cmd); 1999 sgx.sp = sp; 2000 2001 nseg = 0; 2002 while (qla24xx_get_one_block_sg( 2003 cmd->device->sector_size, &sgx, &partial)) 2004 nseg++; 2005 } 2006 } else 2007 nseg = 0; 2008 2009 /* number of required data segments */ 2010 tot_dsds = nseg; 2011 2012 /* Compute number of required protection segments */ 2013 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 2014 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 2015 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 2016 if (unlikely(!nseg)) 2017 goto queuing_error; 2018 else 2019 sp->flags |= SRB_CRC_PROT_DMA_VALID; 2020 2021 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2022 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2023 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 2024 } 2025 } else { 2026 nseg = 0; 2027 } 2028 2029 req_cnt = 1; 2030 /* Total Data and protection sg segment(s) */ 2031 tot_prot_dsds = nseg; 2032 tot_dsds += nseg; 2033 if (req->cnt < (req_cnt + 2)) { 2034 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 2035 RD_REG_DWORD_RELAXED(req->req_q_out); 2036 if (req->ring_index < cnt) 2037 req->cnt = cnt - req->ring_index; 2038 else 2039 req->cnt = req->length - 2040 (req->ring_index - cnt); 2041 if (req->cnt < (req_cnt + 2)) 2042 goto queuing_error; 2043 } 2044 2045 status |= QDSS_GOT_Q_SPACE; 2046 2047 /* Build header part of command packet (excluding the OPCODE). */ 2048 req->current_outstanding_cmd = handle; 2049 req->outstanding_cmds[handle] = sp; 2050 sp->handle = handle; 2051 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 2052 req->cnt -= req_cnt; 2053 2054 /* Fill-in common area */ 2055 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 2056 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 2057 2058 clr_ptr = (uint32_t *)cmd_pkt + 2; 2059 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 2060 2061 /* Set NPORT-ID and LUN number*/ 2062 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2063 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2064 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2065 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2066 2067 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 2068 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2069 2070 /* Total Data and protection segment(s) */ 2071 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 2072 2073 /* Build IOCB segments and adjust for data protection segments */ 2074 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 2075 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 2076 QLA_SUCCESS) 2077 goto queuing_error; 2078 2079 cmd_pkt->entry_count = (uint8_t)req_cnt; 2080 cmd_pkt->timeout = cpu_to_le16(0); 2081 wmb(); 2082 2083 /* Adjust ring index. */ 2084 req->ring_index++; 2085 if (req->ring_index == req->length) { 2086 req->ring_index = 0; 2087 req->ring_ptr = req->ring; 2088 } else 2089 req->ring_ptr++; 2090 2091 /* Set chip new ring index. */ 2092 WRT_REG_DWORD(req->req_q_in, req->ring_index); 2093 2094 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2095 if (vha->flags.process_response_queue && 2096 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2097 qla24xx_process_response_queue(vha, rsp); 2098 2099 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2100 2101 return QLA_SUCCESS; 2102 2103 queuing_error: 2104 if (status & QDSS_GOT_Q_SPACE) { 2105 req->outstanding_cmds[handle] = NULL; 2106 req->cnt += req_cnt; 2107 } 2108 /* Cleanup will be performed by the caller (queuecommand) */ 2109 2110 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2111 return QLA_FUNCTION_FAILED; 2112 } 2113 2114 /* Generic Control-SRB manipulation functions. */ 2115 2116 /* hardware_lock assumed to be held. */ 2117 2118 void * 2119 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp) 2120 { 2121 scsi_qla_host_t *vha = qpair->vha; 2122 struct qla_hw_data *ha = vha->hw; 2123 struct req_que *req = qpair->req; 2124 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 2125 uint32_t index, handle; 2126 request_t *pkt; 2127 uint16_t cnt, req_cnt; 2128 2129 pkt = NULL; 2130 req_cnt = 1; 2131 handle = 0; 2132 2133 if (!sp) 2134 goto skip_cmd_array; 2135 2136 /* Check for room in outstanding command list. */ 2137 handle = req->current_outstanding_cmd; 2138 for (index = 1; index < req->num_outstanding_cmds; index++) { 2139 handle++; 2140 if (handle == req->num_outstanding_cmds) 2141 handle = 1; 2142 if (!req->outstanding_cmds[handle]) 2143 break; 2144 } 2145 if (index == req->num_outstanding_cmds) { 2146 ql_log(ql_log_warn, vha, 0x700b, 2147 "No room on outstanding cmd array.\n"); 2148 goto queuing_error; 2149 } 2150 2151 /* Prep command array. */ 2152 req->current_outstanding_cmd = handle; 2153 req->outstanding_cmds[handle] = sp; 2154 sp->handle = handle; 2155 2156 /* Adjust entry-counts as needed. */ 2157 if (sp->type != SRB_SCSI_CMD) 2158 req_cnt = sp->iocbs; 2159 2160 skip_cmd_array: 2161 /* Check for room on request queue. */ 2162 if (req->cnt < req_cnt + 2) { 2163 if (qpair->use_shadow_reg) 2164 cnt = *req->out_ptr; 2165 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) 2166 cnt = RD_REG_DWORD(®->isp25mq.req_q_out); 2167 else if (IS_P3P_TYPE(ha)) 2168 cnt = RD_REG_DWORD(®->isp82.req_q_out); 2169 else if (IS_FWI2_CAPABLE(ha)) 2170 cnt = RD_REG_DWORD(®->isp24.req_q_out); 2171 else if (IS_QLAFX00(ha)) 2172 cnt = RD_REG_DWORD(®->ispfx00.req_q_out); 2173 else 2174 cnt = qla2x00_debounce_register( 2175 ISP_REQ_Q_OUT(ha, ®->isp)); 2176 2177 if (req->ring_index < cnt) 2178 req->cnt = cnt - req->ring_index; 2179 else 2180 req->cnt = req->length - 2181 (req->ring_index - cnt); 2182 } 2183 if (req->cnt < req_cnt + 2) 2184 goto queuing_error; 2185 2186 /* Prep packet */ 2187 req->cnt -= req_cnt; 2188 pkt = req->ring_ptr; 2189 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2190 if (IS_QLAFX00(ha)) { 2191 WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt); 2192 WRT_REG_WORD((void __iomem *)&pkt->handle, handle); 2193 } else { 2194 pkt->entry_count = req_cnt; 2195 pkt->handle = handle; 2196 } 2197 2198 queuing_error: 2199 qpair->tgt_counters.num_alloc_iocb_failed++; 2200 return pkt; 2201 } 2202 2203 void * 2204 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp) 2205 { 2206 scsi_qla_host_t *vha = qpair->vha; 2207 2208 if (qla2x00_reset_active(vha)) 2209 return NULL; 2210 2211 return __qla2x00_alloc_iocbs(qpair, sp); 2212 } 2213 2214 void * 2215 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp) 2216 { 2217 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp); 2218 } 2219 2220 static void 2221 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2222 { 2223 struct srb_iocb *lio = &sp->u.iocb_cmd; 2224 2225 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2226 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2227 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) 2228 logio->control_flags |= LCF_NVME_PRLI; 2229 2230 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2231 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2232 logio->port_id[1] = sp->fcport->d_id.b.area; 2233 logio->port_id[2] = sp->fcport->d_id.b.domain; 2234 logio->vp_index = sp->vha->vp_idx; 2235 } 2236 2237 static void 2238 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2239 { 2240 struct srb_iocb *lio = &sp->u.iocb_cmd; 2241 2242 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2243 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2244 2245 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) 2246 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); 2247 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) 2248 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); 2249 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2250 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2251 logio->port_id[1] = sp->fcport->d_id.b.area; 2252 logio->port_id[2] = sp->fcport->d_id.b.domain; 2253 logio->vp_index = sp->vha->vp_idx; 2254 } 2255 2256 static void 2257 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) 2258 { 2259 struct qla_hw_data *ha = sp->vha->hw; 2260 struct srb_iocb *lio = &sp->u.iocb_cmd; 2261 uint16_t opts; 2262 2263 mbx->entry_type = MBX_IOCB_TYPE; 2264 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2265 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); 2266 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; 2267 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; 2268 if (HAS_EXTENDED_IDS(ha)) { 2269 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2270 mbx->mb10 = cpu_to_le16(opts); 2271 } else { 2272 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); 2273 } 2274 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2275 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2276 sp->fcport->d_id.b.al_pa); 2277 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2278 } 2279 2280 static void 2281 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2282 { 2283 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2284 logio->control_flags = 2285 cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); 2286 if (!sp->fcport->se_sess || 2287 !sp->fcport->keep_nport_handle) 2288 logio->control_flags |= cpu_to_le16(LCF_FREE_NPORT); 2289 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2290 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2291 logio->port_id[1] = sp->fcport->d_id.b.area; 2292 logio->port_id[2] = sp->fcport->d_id.b.domain; 2293 logio->vp_index = sp->vha->vp_idx; 2294 } 2295 2296 static void 2297 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) 2298 { 2299 struct qla_hw_data *ha = sp->vha->hw; 2300 2301 mbx->entry_type = MBX_IOCB_TYPE; 2302 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2303 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); 2304 mbx->mb1 = HAS_EXTENDED_IDS(ha) ? 2305 cpu_to_le16(sp->fcport->loop_id): 2306 cpu_to_le16(sp->fcport->loop_id << 8); 2307 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2308 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2309 sp->fcport->d_id.b.al_pa); 2310 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2311 /* Implicit: mbx->mbx10 = 0. */ 2312 } 2313 2314 static void 2315 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2316 { 2317 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2318 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); 2319 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2320 logio->vp_index = sp->vha->vp_idx; 2321 } 2322 2323 static void 2324 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) 2325 { 2326 struct qla_hw_data *ha = sp->vha->hw; 2327 2328 mbx->entry_type = MBX_IOCB_TYPE; 2329 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2330 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); 2331 if (HAS_EXTENDED_IDS(ha)) { 2332 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2333 mbx->mb10 = cpu_to_le16(BIT_0); 2334 } else { 2335 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); 2336 } 2337 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); 2338 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); 2339 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); 2340 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); 2341 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2342 } 2343 2344 static void 2345 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) 2346 { 2347 uint32_t flags; 2348 uint64_t lun; 2349 struct fc_port *fcport = sp->fcport; 2350 scsi_qla_host_t *vha = fcport->vha; 2351 struct qla_hw_data *ha = vha->hw; 2352 struct srb_iocb *iocb = &sp->u.iocb_cmd; 2353 struct req_que *req = vha->req; 2354 2355 flags = iocb->u.tmf.flags; 2356 lun = iocb->u.tmf.lun; 2357 2358 tsk->entry_type = TSK_MGMT_IOCB_TYPE; 2359 tsk->entry_count = 1; 2360 tsk->handle = MAKE_HANDLE(req->id, tsk->handle); 2361 tsk->nport_handle = cpu_to_le16(fcport->loop_id); 2362 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); 2363 tsk->control_flags = cpu_to_le32(flags); 2364 tsk->port_id[0] = fcport->d_id.b.al_pa; 2365 tsk->port_id[1] = fcport->d_id.b.area; 2366 tsk->port_id[2] = fcport->d_id.b.domain; 2367 tsk->vp_index = fcport->vha->vp_idx; 2368 2369 if (flags == TCF_LUN_RESET) { 2370 int_to_scsilun(lun, &tsk->lun); 2371 host_to_fcp_swap((uint8_t *)&tsk->lun, 2372 sizeof(tsk->lun)); 2373 } 2374 } 2375 2376 static void 2377 qla2x00_els_dcmd_sp_free(void *data) 2378 { 2379 srb_t *sp = data; 2380 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2381 2382 kfree(sp->fcport); 2383 2384 if (elsio->u.els_logo.els_logo_pyld) 2385 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, 2386 elsio->u.els_logo.els_logo_pyld, 2387 elsio->u.els_logo.els_logo_pyld_dma); 2388 2389 del_timer(&elsio->timer); 2390 qla2x00_rel_sp(sp); 2391 } 2392 2393 static void 2394 qla2x00_els_dcmd_iocb_timeout(void *data) 2395 { 2396 srb_t *sp = data; 2397 fc_port_t *fcport = sp->fcport; 2398 struct scsi_qla_host *vha = sp->vha; 2399 struct srb_iocb *lio = &sp->u.iocb_cmd; 2400 2401 ql_dbg(ql_dbg_io, vha, 0x3069, 2402 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n", 2403 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, 2404 fcport->d_id.b.al_pa); 2405 2406 complete(&lio->u.els_logo.comp); 2407 } 2408 2409 static void 2410 qla2x00_els_dcmd_sp_done(void *ptr, int res) 2411 { 2412 srb_t *sp = ptr; 2413 fc_port_t *fcport = sp->fcport; 2414 struct srb_iocb *lio = &sp->u.iocb_cmd; 2415 struct scsi_qla_host *vha = sp->vha; 2416 2417 ql_dbg(ql_dbg_io, vha, 0x3072, 2418 "%s hdl=%x, portid=%02x%02x%02x done\n", 2419 sp->name, sp->handle, fcport->d_id.b.domain, 2420 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2421 2422 complete(&lio->u.els_logo.comp); 2423 } 2424 2425 int 2426 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, 2427 port_id_t remote_did) 2428 { 2429 srb_t *sp; 2430 fc_port_t *fcport = NULL; 2431 struct srb_iocb *elsio = NULL; 2432 struct qla_hw_data *ha = vha->hw; 2433 struct els_logo_payload logo_pyld; 2434 int rval = QLA_SUCCESS; 2435 2436 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); 2437 if (!fcport) { 2438 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n"); 2439 return -ENOMEM; 2440 } 2441 2442 /* Alloc SRB structure */ 2443 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2444 if (!sp) { 2445 kfree(fcport); 2446 ql_log(ql_log_info, vha, 0x70e6, 2447 "SRB allocation failed\n"); 2448 return -ENOMEM; 2449 } 2450 2451 elsio = &sp->u.iocb_cmd; 2452 fcport->loop_id = 0xFFFF; 2453 fcport->d_id.b.domain = remote_did.b.domain; 2454 fcport->d_id.b.area = remote_did.b.area; 2455 fcport->d_id.b.al_pa = remote_did.b.al_pa; 2456 2457 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n", 2458 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); 2459 2460 sp->type = SRB_ELS_DCMD; 2461 sp->name = "ELS_DCMD"; 2462 sp->fcport = fcport; 2463 elsio->timeout = qla2x00_els_dcmd_iocb_timeout; 2464 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT); 2465 sp->done = qla2x00_els_dcmd_sp_done; 2466 sp->free = qla2x00_els_dcmd_sp_free; 2467 2468 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev, 2469 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma, 2470 GFP_KERNEL); 2471 2472 if (!elsio->u.els_logo.els_logo_pyld) { 2473 sp->free(sp); 2474 return QLA_FUNCTION_FAILED; 2475 } 2476 2477 memset(&logo_pyld, 0, sizeof(struct els_logo_payload)); 2478 2479 elsio->u.els_logo.els_cmd = els_opcode; 2480 logo_pyld.opcode = els_opcode; 2481 logo_pyld.s_id[0] = vha->d_id.b.al_pa; 2482 logo_pyld.s_id[1] = vha->d_id.b.area; 2483 logo_pyld.s_id[2] = vha->d_id.b.domain; 2484 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t)); 2485 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE); 2486 2487 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld, 2488 sizeof(struct els_logo_payload)); 2489 2490 rval = qla2x00_start_sp(sp); 2491 if (rval != QLA_SUCCESS) { 2492 sp->free(sp); 2493 return QLA_FUNCTION_FAILED; 2494 } 2495 2496 ql_dbg(ql_dbg_io, vha, 0x3074, 2497 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n", 2498 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain, 2499 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2500 2501 wait_for_completion(&elsio->u.els_logo.comp); 2502 2503 sp->free(sp); 2504 return rval; 2505 } 2506 2507 static void 2508 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 2509 { 2510 scsi_qla_host_t *vha = sp->vha; 2511 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2512 uint32_t dsd_len = 24; 2513 2514 els_iocb->entry_type = ELS_IOCB_TYPE; 2515 els_iocb->entry_count = 1; 2516 els_iocb->sys_define = 0; 2517 els_iocb->entry_status = 0; 2518 els_iocb->handle = sp->handle; 2519 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2520 els_iocb->tx_dsd_count = 1; 2521 els_iocb->vp_index = vha->vp_idx; 2522 els_iocb->sof_type = EST_SOFI3; 2523 els_iocb->rx_dsd_count = 0; 2524 els_iocb->opcode = elsio->u.els_logo.els_cmd; 2525 2526 els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 2527 els_iocb->port_id[1] = sp->fcport->d_id.b.area; 2528 els_iocb->port_id[2] = sp->fcport->d_id.b.domain; 2529 els_iocb->s_id[0] = vha->d_id.b.al_pa; 2530 els_iocb->s_id[1] = vha->d_id.b.area; 2531 els_iocb->s_id[2] = vha->d_id.b.domain; 2532 els_iocb->control_flags = 0; 2533 2534 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) { 2535 els_iocb->tx_byte_count = sizeof(struct els_plogi_payload); 2536 els_iocb->tx_address[0] = 2537 cpu_to_le32(LSD(elsio->u.els_plogi.els_plogi_pyld_dma)); 2538 els_iocb->tx_address[1] = 2539 cpu_to_le32(MSD(elsio->u.els_plogi.els_plogi_pyld_dma)); 2540 els_iocb->tx_len = dsd_len; 2541 2542 els_iocb->rx_dsd_count = 1; 2543 els_iocb->rx_byte_count = sizeof(struct els_plogi_payload); 2544 els_iocb->rx_address[0] = 2545 cpu_to_le32(LSD(elsio->u.els_plogi.els_resp_pyld_dma)); 2546 els_iocb->rx_address[1] = 2547 cpu_to_le32(MSD(elsio->u.els_plogi.els_resp_pyld_dma)); 2548 els_iocb->rx_len = dsd_len; 2549 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, 2550 "PLOGI ELS IOCB:\n"); 2551 ql_dump_buffer(ql_log_info, vha, 0x0109, 2552 (uint8_t *)els_iocb, 0x70); 2553 } else { 2554 els_iocb->tx_byte_count = sizeof(struct els_logo_payload); 2555 els_iocb->tx_address[0] = 2556 cpu_to_le32(LSD(elsio->u.els_logo.els_logo_pyld_dma)); 2557 els_iocb->tx_address[1] = 2558 cpu_to_le32(MSD(elsio->u.els_logo.els_logo_pyld_dma)); 2559 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); 2560 2561 els_iocb->rx_byte_count = 0; 2562 els_iocb->rx_address[0] = 0; 2563 els_iocb->rx_address[1] = 0; 2564 els_iocb->rx_len = 0; 2565 } 2566 2567 sp->vha->qla_stats.control_requests++; 2568 } 2569 2570 static void 2571 qla2x00_els_dcmd2_sp_free(void *data) 2572 { 2573 srb_t *sp = data; 2574 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2575 2576 if (elsio->u.els_plogi.els_plogi_pyld) 2577 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, 2578 elsio->u.els_plogi.els_plogi_pyld, 2579 elsio->u.els_plogi.els_plogi_pyld_dma); 2580 2581 if (elsio->u.els_plogi.els_resp_pyld) 2582 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, 2583 elsio->u.els_plogi.els_resp_pyld, 2584 elsio->u.els_plogi.els_resp_pyld_dma); 2585 2586 del_timer(&elsio->timer); 2587 qla2x00_rel_sp(sp); 2588 } 2589 2590 static void 2591 qla2x00_els_dcmd2_iocb_timeout(void *data) 2592 { 2593 srb_t *sp = data; 2594 fc_port_t *fcport = sp->fcport; 2595 struct scsi_qla_host *vha = sp->vha; 2596 struct qla_hw_data *ha = vha->hw; 2597 struct srb_iocb *lio = &sp->u.iocb_cmd; 2598 unsigned long flags = 0; 2599 int res; 2600 2601 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069, 2602 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n", 2603 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24); 2604 2605 /* Abort the exchange */ 2606 spin_lock_irqsave(&ha->hardware_lock, flags); 2607 res = ha->isp_ops->abort_command(sp); 2608 ql_dbg(ql_dbg_io, vha, 0x3070, 2609 "mbx abort_command %s\n", 2610 (res == QLA_SUCCESS) ? "successful" : "failed"); 2611 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2612 2613 complete(&lio->u.els_plogi.comp); 2614 } 2615 2616 static void 2617 qla2x00_els_dcmd2_sp_done(void *ptr, int res) 2618 { 2619 srb_t *sp = ptr; 2620 fc_port_t *fcport = sp->fcport; 2621 struct srb_iocb *lio = &sp->u.iocb_cmd; 2622 struct scsi_qla_host *vha = sp->vha; 2623 2624 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3072, 2625 "%s ELS hdl=%x, portid=%06x done %8phC\n", 2626 sp->name, sp->handle, fcport->d_id.b24, fcport->port_name); 2627 2628 complete(&lio->u.els_plogi.comp); 2629 } 2630 2631 int 2632 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, 2633 fc_port_t *fcport, port_id_t remote_did) 2634 { 2635 srb_t *sp; 2636 struct srb_iocb *elsio = NULL; 2637 struct qla_hw_data *ha = vha->hw; 2638 int rval = QLA_SUCCESS; 2639 void *ptr, *resp_ptr; 2640 dma_addr_t ptr_dma; 2641 2642 /* Alloc SRB structure */ 2643 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2644 if (!sp) { 2645 ql_log(ql_log_info, vha, 0x70e6, 2646 "SRB allocation failed\n"); 2647 return -ENOMEM; 2648 } 2649 2650 elsio = &sp->u.iocb_cmd; 2651 fcport->d_id.b.domain = remote_did.b.domain; 2652 fcport->d_id.b.area = remote_did.b.area; 2653 fcport->d_id.b.al_pa = remote_did.b.al_pa; 2654 2655 ql_dbg(ql_dbg_io, vha, 0x3073, 2656 "Enter: PLOGI portid=%06x\n", fcport->d_id.b24); 2657 2658 sp->type = SRB_ELS_DCMD; 2659 sp->name = "ELS_DCMD"; 2660 sp->fcport = fcport; 2661 2662 elsio->timeout = qla2x00_els_dcmd2_iocb_timeout; 2663 init_completion(&elsio->u.els_plogi.comp); 2664 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT); 2665 2666 sp->done = qla2x00_els_dcmd2_sp_done; 2667 sp->free = qla2x00_els_dcmd2_sp_free; 2668 2669 ptr = elsio->u.els_plogi.els_plogi_pyld = 2670 dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE, 2671 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL); 2672 ptr_dma = elsio->u.els_plogi.els_plogi_pyld_dma; 2673 2674 if (!elsio->u.els_plogi.els_plogi_pyld) { 2675 rval = QLA_FUNCTION_FAILED; 2676 goto out; 2677 } 2678 2679 resp_ptr = elsio->u.els_plogi.els_resp_pyld = 2680 dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE, 2681 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL); 2682 2683 if (!elsio->u.els_plogi.els_resp_pyld) { 2684 rval = QLA_FUNCTION_FAILED; 2685 goto out; 2686 } 2687 2688 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr); 2689 2690 memset(ptr, 0, sizeof(struct els_plogi_payload)); 2691 memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); 2692 elsio->u.els_plogi.els_cmd = els_opcode; 2693 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; 2694 qla24xx_get_port_login_templ(vha, ptr_dma + 4, 2695 &elsio->u.els_plogi.els_plogi_pyld->data[0], 2696 sizeof(struct els_plogi_payload)); 2697 2698 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n"); 2699 ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x0109, 2700 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 0x70); 2701 2702 rval = qla2x00_start_sp(sp); 2703 if (rval != QLA_SUCCESS) { 2704 rval = QLA_FUNCTION_FAILED; 2705 goto out; 2706 } 2707 2708 ql_dbg(ql_dbg_io, vha, 0x3074, 2709 "%s PLOGI sent, hdl=%x, loopid=%x, portid=%06x\n", 2710 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b24); 2711 2712 wait_for_completion(&elsio->u.els_plogi.comp); 2713 2714 if (elsio->u.els_plogi.comp_status != CS_COMPLETE) 2715 rval = QLA_FUNCTION_FAILED; 2716 2717 out: 2718 sp->free(sp); 2719 return rval; 2720 } 2721 2722 static void 2723 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 2724 { 2725 struct bsg_job *bsg_job = sp->u.bsg_job; 2726 struct fc_bsg_request *bsg_request = bsg_job->request; 2727 2728 els_iocb->entry_type = ELS_IOCB_TYPE; 2729 els_iocb->entry_count = 1; 2730 els_iocb->sys_define = 0; 2731 els_iocb->entry_status = 0; 2732 els_iocb->handle = sp->handle; 2733 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2734 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 2735 els_iocb->vp_index = sp->vha->vp_idx; 2736 els_iocb->sof_type = EST_SOFI3; 2737 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 2738 2739 els_iocb->opcode = 2740 sp->type == SRB_ELS_CMD_RPT ? 2741 bsg_request->rqst_data.r_els.els_code : 2742 bsg_request->rqst_data.h_els.command_code; 2743 els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 2744 els_iocb->port_id[1] = sp->fcport->d_id.b.area; 2745 els_iocb->port_id[2] = sp->fcport->d_id.b.domain; 2746 els_iocb->control_flags = 0; 2747 els_iocb->rx_byte_count = 2748 cpu_to_le32(bsg_job->reply_payload.payload_len); 2749 els_iocb->tx_byte_count = 2750 cpu_to_le32(bsg_job->request_payload.payload_len); 2751 2752 els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address 2753 (bsg_job->request_payload.sg_list))); 2754 els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address 2755 (bsg_job->request_payload.sg_list))); 2756 els_iocb->tx_len = cpu_to_le32(sg_dma_len 2757 (bsg_job->request_payload.sg_list)); 2758 2759 els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address 2760 (bsg_job->reply_payload.sg_list))); 2761 els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address 2762 (bsg_job->reply_payload.sg_list))); 2763 els_iocb->rx_len = cpu_to_le32(sg_dma_len 2764 (bsg_job->reply_payload.sg_list)); 2765 2766 sp->vha->qla_stats.control_requests++; 2767 } 2768 2769 static void 2770 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) 2771 { 2772 uint16_t avail_dsds; 2773 uint32_t *cur_dsd; 2774 struct scatterlist *sg; 2775 int index; 2776 uint16_t tot_dsds; 2777 scsi_qla_host_t *vha = sp->vha; 2778 struct qla_hw_data *ha = vha->hw; 2779 struct bsg_job *bsg_job = sp->u.bsg_job; 2780 int loop_iterartion = 0; 2781 int entry_count = 1; 2782 2783 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); 2784 ct_iocb->entry_type = CT_IOCB_TYPE; 2785 ct_iocb->entry_status = 0; 2786 ct_iocb->handle1 = sp->handle; 2787 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); 2788 ct_iocb->status = cpu_to_le16(0); 2789 ct_iocb->control_flags = cpu_to_le16(0); 2790 ct_iocb->timeout = 0; 2791 ct_iocb->cmd_dsd_count = 2792 cpu_to_le16(bsg_job->request_payload.sg_cnt); 2793 ct_iocb->total_dsd_count = 2794 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); 2795 ct_iocb->req_bytecount = 2796 cpu_to_le32(bsg_job->request_payload.payload_len); 2797 ct_iocb->rsp_bytecount = 2798 cpu_to_le32(bsg_job->reply_payload.payload_len); 2799 2800 ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address 2801 (bsg_job->request_payload.sg_list))); 2802 ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address 2803 (bsg_job->request_payload.sg_list))); 2804 ct_iocb->dseg_req_length = ct_iocb->req_bytecount; 2805 2806 ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address 2807 (bsg_job->reply_payload.sg_list))); 2808 ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address 2809 (bsg_job->reply_payload.sg_list))); 2810 ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; 2811 2812 avail_dsds = 1; 2813 cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; 2814 index = 0; 2815 tot_dsds = bsg_job->reply_payload.sg_cnt; 2816 2817 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { 2818 dma_addr_t sle_dma; 2819 cont_a64_entry_t *cont_pkt; 2820 2821 /* Allocate additional continuation packets? */ 2822 if (avail_dsds == 0) { 2823 /* 2824 * Five DSDs are available in the Cont. 2825 * Type 1 IOCB. 2826 */ 2827 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 2828 vha->hw->req_q_map[0]); 2829 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 2830 avail_dsds = 5; 2831 entry_count++; 2832 } 2833 2834 sle_dma = sg_dma_address(sg); 2835 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 2836 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 2837 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 2838 loop_iterartion++; 2839 avail_dsds--; 2840 } 2841 ct_iocb->entry_count = entry_count; 2842 2843 sp->vha->qla_stats.control_requests++; 2844 } 2845 2846 static void 2847 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) 2848 { 2849 uint16_t avail_dsds; 2850 uint32_t *cur_dsd; 2851 struct scatterlist *sg; 2852 int index; 2853 uint16_t cmd_dsds, rsp_dsds; 2854 scsi_qla_host_t *vha = sp->vha; 2855 struct qla_hw_data *ha = vha->hw; 2856 struct bsg_job *bsg_job = sp->u.bsg_job; 2857 int entry_count = 1; 2858 cont_a64_entry_t *cont_pkt = NULL; 2859 2860 ct_iocb->entry_type = CT_IOCB_TYPE; 2861 ct_iocb->entry_status = 0; 2862 ct_iocb->sys_define = 0; 2863 ct_iocb->handle = sp->handle; 2864 2865 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2866 ct_iocb->vp_index = sp->vha->vp_idx; 2867 ct_iocb->comp_status = cpu_to_le16(0); 2868 2869 cmd_dsds = bsg_job->request_payload.sg_cnt; 2870 rsp_dsds = bsg_job->reply_payload.sg_cnt; 2871 2872 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds); 2873 ct_iocb->timeout = 0; 2874 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds); 2875 ct_iocb->cmd_byte_count = 2876 cpu_to_le32(bsg_job->request_payload.payload_len); 2877 2878 avail_dsds = 2; 2879 cur_dsd = (uint32_t *)ct_iocb->dseg_0_address; 2880 index = 0; 2881 2882 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) { 2883 dma_addr_t sle_dma; 2884 2885 /* Allocate additional continuation packets? */ 2886 if (avail_dsds == 0) { 2887 /* 2888 * Five DSDs are available in the Cont. 2889 * Type 1 IOCB. 2890 */ 2891 cont_pkt = qla2x00_prep_cont_type1_iocb( 2892 vha, ha->req_q_map[0]); 2893 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 2894 avail_dsds = 5; 2895 entry_count++; 2896 } 2897 2898 sle_dma = sg_dma_address(sg); 2899 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 2900 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 2901 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 2902 avail_dsds--; 2903 } 2904 2905 index = 0; 2906 2907 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) { 2908 dma_addr_t sle_dma; 2909 2910 /* Allocate additional continuation packets? */ 2911 if (avail_dsds == 0) { 2912 /* 2913 * Five DSDs are available in the Cont. 2914 * Type 1 IOCB. 2915 */ 2916 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 2917 ha->req_q_map[0]); 2918 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 2919 avail_dsds = 5; 2920 entry_count++; 2921 } 2922 2923 sle_dma = sg_dma_address(sg); 2924 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 2925 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 2926 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 2927 avail_dsds--; 2928 } 2929 ct_iocb->entry_count = entry_count; 2930 } 2931 2932 /* 2933 * qla82xx_start_scsi() - Send a SCSI command to the ISP 2934 * @sp: command to send to the ISP 2935 * 2936 * Returns non-zero if a failure occurred, else zero. 2937 */ 2938 int 2939 qla82xx_start_scsi(srb_t *sp) 2940 { 2941 int nseg; 2942 unsigned long flags; 2943 struct scsi_cmnd *cmd; 2944 uint32_t *clr_ptr; 2945 uint32_t index; 2946 uint32_t handle; 2947 uint16_t cnt; 2948 uint16_t req_cnt; 2949 uint16_t tot_dsds; 2950 struct device_reg_82xx __iomem *reg; 2951 uint32_t dbval; 2952 uint32_t *fcp_dl; 2953 uint8_t additional_cdb_len; 2954 struct ct6_dsd *ctx; 2955 struct scsi_qla_host *vha = sp->vha; 2956 struct qla_hw_data *ha = vha->hw; 2957 struct req_que *req = NULL; 2958 struct rsp_que *rsp = NULL; 2959 2960 /* Setup device pointers. */ 2961 reg = &ha->iobase->isp82; 2962 cmd = GET_CMD_SP(sp); 2963 req = vha->req; 2964 rsp = ha->rsp_q_map[0]; 2965 2966 /* So we know we haven't pci_map'ed anything yet */ 2967 tot_dsds = 0; 2968 2969 dbval = 0x04 | (ha->portnum << 5); 2970 2971 /* Send marker if required */ 2972 if (vha->marker_needed != 0) { 2973 if (qla2x00_marker(vha, req, 2974 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { 2975 ql_log(ql_log_warn, vha, 0x300c, 2976 "qla2x00_marker failed for cmd=%p.\n", cmd); 2977 return QLA_FUNCTION_FAILED; 2978 } 2979 vha->marker_needed = 0; 2980 } 2981 2982 /* Acquire ring specific lock */ 2983 spin_lock_irqsave(&ha->hardware_lock, flags); 2984 2985 /* Check for room in outstanding command list. */ 2986 handle = req->current_outstanding_cmd; 2987 for (index = 1; index < req->num_outstanding_cmds; index++) { 2988 handle++; 2989 if (handle == req->num_outstanding_cmds) 2990 handle = 1; 2991 if (!req->outstanding_cmds[handle]) 2992 break; 2993 } 2994 if (index == req->num_outstanding_cmds) 2995 goto queuing_error; 2996 2997 /* Map the sg table so we have an accurate count of sg entries needed */ 2998 if (scsi_sg_count(cmd)) { 2999 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 3000 scsi_sg_count(cmd), cmd->sc_data_direction); 3001 if (unlikely(!nseg)) 3002 goto queuing_error; 3003 } else 3004 nseg = 0; 3005 3006 tot_dsds = nseg; 3007 3008 if (tot_dsds > ql2xshiftctondsd) { 3009 struct cmd_type_6 *cmd_pkt; 3010 uint16_t more_dsd_lists = 0; 3011 struct dsd_dma *dsd_ptr; 3012 uint16_t i; 3013 3014 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); 3015 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { 3016 ql_dbg(ql_dbg_io, vha, 0x300d, 3017 "Num of DSD list %d is than %d for cmd=%p.\n", 3018 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, 3019 cmd); 3020 goto queuing_error; 3021 } 3022 3023 if (more_dsd_lists <= ha->gbl_dsd_avail) 3024 goto sufficient_dsds; 3025 else 3026 more_dsd_lists -= ha->gbl_dsd_avail; 3027 3028 for (i = 0; i < more_dsd_lists; i++) { 3029 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 3030 if (!dsd_ptr) { 3031 ql_log(ql_log_fatal, vha, 0x300e, 3032 "Failed to allocate memory for dsd_dma " 3033 "for cmd=%p.\n", cmd); 3034 goto queuing_error; 3035 } 3036 3037 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, 3038 GFP_ATOMIC, &dsd_ptr->dsd_list_dma); 3039 if (!dsd_ptr->dsd_addr) { 3040 kfree(dsd_ptr); 3041 ql_log(ql_log_fatal, vha, 0x300f, 3042 "Failed to allocate memory for dsd_addr " 3043 "for cmd=%p.\n", cmd); 3044 goto queuing_error; 3045 } 3046 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); 3047 ha->gbl_dsd_avail++; 3048 } 3049 3050 sufficient_dsds: 3051 req_cnt = 1; 3052 3053 if (req->cnt < (req_cnt + 2)) { 3054 cnt = (uint16_t)RD_REG_DWORD_RELAXED( 3055 ®->req_q_out[0]); 3056 if (req->ring_index < cnt) 3057 req->cnt = cnt - req->ring_index; 3058 else 3059 req->cnt = req->length - 3060 (req->ring_index - cnt); 3061 if (req->cnt < (req_cnt + 2)) 3062 goto queuing_error; 3063 } 3064 3065 ctx = sp->u.scmd.ctx = 3066 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); 3067 if (!ctx) { 3068 ql_log(ql_log_fatal, vha, 0x3010, 3069 "Failed to allocate ctx for cmd=%p.\n", cmd); 3070 goto queuing_error; 3071 } 3072 3073 memset(ctx, 0, sizeof(struct ct6_dsd)); 3074 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, 3075 GFP_ATOMIC, &ctx->fcp_cmnd_dma); 3076 if (!ctx->fcp_cmnd) { 3077 ql_log(ql_log_fatal, vha, 0x3011, 3078 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); 3079 goto queuing_error; 3080 } 3081 3082 /* Initialize the DSD list and dma handle */ 3083 INIT_LIST_HEAD(&ctx->dsd_list); 3084 ctx->dsd_use_cnt = 0; 3085 3086 if (cmd->cmd_len > 16) { 3087 additional_cdb_len = cmd->cmd_len - 16; 3088 if ((cmd->cmd_len % 4) != 0) { 3089 /* SCSI command bigger than 16 bytes must be 3090 * multiple of 4 3091 */ 3092 ql_log(ql_log_warn, vha, 0x3012, 3093 "scsi cmd len %d not multiple of 4 " 3094 "for cmd=%p.\n", cmd->cmd_len, cmd); 3095 goto queuing_error_fcp_cmnd; 3096 } 3097 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; 3098 } else { 3099 additional_cdb_len = 0; 3100 ctx->fcp_cmnd_len = 12 + 16 + 4; 3101 } 3102 3103 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; 3104 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 3105 3106 /* Zero out remaining portion of packet. */ 3107 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 3108 clr_ptr = (uint32_t *)cmd_pkt + 2; 3109 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3110 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3111 3112 /* Set NPORT-ID and LUN number*/ 3113 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3114 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3115 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3116 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3117 cmd_pkt->vp_index = sp->vha->vp_idx; 3118 3119 /* Build IOCB segments */ 3120 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) 3121 goto queuing_error_fcp_cmnd; 3122 3123 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3124 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 3125 3126 /* build FCP_CMND IU */ 3127 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); 3128 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; 3129 3130 if (cmd->sc_data_direction == DMA_TO_DEVICE) 3131 ctx->fcp_cmnd->additional_cdb_len |= 1; 3132 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 3133 ctx->fcp_cmnd->additional_cdb_len |= 2; 3134 3135 /* Populate the FCP_PRIO. */ 3136 if (ha->flags.fcp_prio_enabled) 3137 ctx->fcp_cmnd->task_attribute |= 3138 sp->fcport->fcp_prio << 3; 3139 3140 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 3141 3142 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + 3143 additional_cdb_len); 3144 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); 3145 3146 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); 3147 cmd_pkt->fcp_cmnd_dseg_address[0] = 3148 cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); 3149 cmd_pkt->fcp_cmnd_dseg_address[1] = 3150 cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); 3151 3152 sp->flags |= SRB_FCP_CMND_DMA_VALID; 3153 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3154 /* Set total data segment count. */ 3155 cmd_pkt->entry_count = (uint8_t)req_cnt; 3156 /* Specify response queue number where 3157 * completion should happen 3158 */ 3159 cmd_pkt->entry_status = (uint8_t) rsp->id; 3160 } else { 3161 struct cmd_type_7 *cmd_pkt; 3162 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3163 if (req->cnt < (req_cnt + 2)) { 3164 cnt = (uint16_t)RD_REG_DWORD_RELAXED( 3165 ®->req_q_out[0]); 3166 if (req->ring_index < cnt) 3167 req->cnt = cnt - req->ring_index; 3168 else 3169 req->cnt = req->length - 3170 (req->ring_index - cnt); 3171 } 3172 if (req->cnt < (req_cnt + 2)) 3173 goto queuing_error; 3174 3175 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 3176 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 3177 3178 /* Zero out remaining portion of packet. */ 3179 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3180 clr_ptr = (uint32_t *)cmd_pkt + 2; 3181 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3182 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3183 3184 /* Set NPORT-ID and LUN number*/ 3185 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3186 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3187 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3188 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3189 cmd_pkt->vp_index = sp->vha->vp_idx; 3190 3191 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3192 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, 3193 sizeof(cmd_pkt->lun)); 3194 3195 /* Populate the FCP_PRIO. */ 3196 if (ha->flags.fcp_prio_enabled) 3197 cmd_pkt->task |= sp->fcport->fcp_prio << 3; 3198 3199 /* Load SCSI command packet. */ 3200 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 3201 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 3202 3203 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3204 3205 /* Build IOCB segments */ 3206 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 3207 3208 /* Set total data segment count. */ 3209 cmd_pkt->entry_count = (uint8_t)req_cnt; 3210 /* Specify response queue number where 3211 * completion should happen. 3212 */ 3213 cmd_pkt->entry_status = (uint8_t) rsp->id; 3214 3215 } 3216 /* Build command packet. */ 3217 req->current_outstanding_cmd = handle; 3218 req->outstanding_cmds[handle] = sp; 3219 sp->handle = handle; 3220 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 3221 req->cnt -= req_cnt; 3222 wmb(); 3223 3224 /* Adjust ring index. */ 3225 req->ring_index++; 3226 if (req->ring_index == req->length) { 3227 req->ring_index = 0; 3228 req->ring_ptr = req->ring; 3229 } else 3230 req->ring_ptr++; 3231 3232 sp->flags |= SRB_DMA_VALID; 3233 3234 /* Set chip new ring index. */ 3235 /* write, read and verify logic */ 3236 dbval = dbval | (req->id << 8) | (req->ring_index << 16); 3237 if (ql2xdbwr) 3238 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval); 3239 else { 3240 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); 3241 wmb(); 3242 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { 3243 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); 3244 wmb(); 3245 } 3246 } 3247 3248 /* Manage unprocessed RIO/ZIO commands in response queue. */ 3249 if (vha->flags.process_response_queue && 3250 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 3251 qla24xx_process_response_queue(vha, rsp); 3252 3253 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3254 return QLA_SUCCESS; 3255 3256 queuing_error_fcp_cmnd: 3257 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); 3258 queuing_error: 3259 if (tot_dsds) 3260 scsi_dma_unmap(cmd); 3261 3262 if (sp->u.scmd.ctx) { 3263 mempool_free(sp->u.scmd.ctx, ha->ctx_mempool); 3264 sp->u.scmd.ctx = NULL; 3265 } 3266 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3267 3268 return QLA_FUNCTION_FAILED; 3269 } 3270 3271 static void 3272 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) 3273 { 3274 struct srb_iocb *aio = &sp->u.iocb_cmd; 3275 scsi_qla_host_t *vha = sp->vha; 3276 struct req_que *req = vha->req; 3277 3278 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); 3279 abt_iocb->entry_type = ABORT_IOCB_TYPE; 3280 abt_iocb->entry_count = 1; 3281 abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle)); 3282 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3283 abt_iocb->handle_to_abort = 3284 cpu_to_le32(MAKE_HANDLE(aio->u.abt.req_que_no, 3285 aio->u.abt.cmd_hndl)); 3286 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 3287 abt_iocb->port_id[1] = sp->fcport->d_id.b.area; 3288 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; 3289 abt_iocb->vp_index = vha->vp_idx; 3290 abt_iocb->req_que_no = cpu_to_le16(aio->u.abt.req_que_no); 3291 /* Send the command to the firmware */ 3292 wmb(); 3293 } 3294 3295 static void 3296 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx) 3297 { 3298 int i, sz; 3299 3300 mbx->entry_type = MBX_IOCB_TYPE; 3301 mbx->handle = sp->handle; 3302 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb)); 3303 3304 for (i = 0; i < sz; i++) 3305 mbx->mb[i] = cpu_to_le16(sp->u.iocb_cmd.u.mbx.out_mb[i]); 3306 } 3307 3308 static void 3309 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt) 3310 { 3311 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt; 3312 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg); 3313 ct_pkt->handle = sp->handle; 3314 } 3315 3316 static void qla2x00_send_notify_ack_iocb(srb_t *sp, 3317 struct nack_to_isp *nack) 3318 { 3319 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy; 3320 3321 nack->entry_type = NOTIFY_ACK_TYPE; 3322 nack->entry_count = 1; 3323 nack->ox_id = ntfy->ox_id; 3324 3325 nack->u.isp24.handle = sp->handle; 3326 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; 3327 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { 3328 nack->u.isp24.flags = ntfy->u.isp24.flags & 3329 cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); 3330 } 3331 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; 3332 nack->u.isp24.status = ntfy->u.isp24.status; 3333 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; 3334 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; 3335 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; 3336 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; 3337 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; 3338 nack->u.isp24.srr_flags = 0; 3339 nack->u.isp24.srr_reject_code = 0; 3340 nack->u.isp24.srr_reject_code_expl = 0; 3341 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; 3342 } 3343 3344 /* 3345 * Build NVME LS request 3346 */ 3347 static int 3348 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt) 3349 { 3350 struct srb_iocb *nvme; 3351 int rval = QLA_SUCCESS; 3352 3353 nvme = &sp->u.iocb_cmd; 3354 cmd_pkt->entry_type = PT_LS4_REQUEST; 3355 cmd_pkt->entry_count = 1; 3356 cmd_pkt->control_flags = CF_LS4_ORIGINATOR << CF_LS4_SHIFT; 3357 3358 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec); 3359 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3360 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 3361 3362 cmd_pkt->tx_dseg_count = 1; 3363 cmd_pkt->tx_byte_count = nvme->u.nvme.cmd_len; 3364 cmd_pkt->dseg0_len = nvme->u.nvme.cmd_len; 3365 cmd_pkt->dseg0_address[0] = cpu_to_le32(LSD(nvme->u.nvme.cmd_dma)); 3366 cmd_pkt->dseg0_address[1] = cpu_to_le32(MSD(nvme->u.nvme.cmd_dma)); 3367 3368 cmd_pkt->rx_dseg_count = 1; 3369 cmd_pkt->rx_byte_count = nvme->u.nvme.rsp_len; 3370 cmd_pkt->dseg1_len = nvme->u.nvme.rsp_len; 3371 cmd_pkt->dseg1_address[0] = cpu_to_le32(LSD(nvme->u.nvme.rsp_dma)); 3372 cmd_pkt->dseg1_address[1] = cpu_to_le32(MSD(nvme->u.nvme.rsp_dma)); 3373 3374 return rval; 3375 } 3376 3377 static void 3378 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce) 3379 { 3380 int map, pos; 3381 3382 vce->entry_type = VP_CTRL_IOCB_TYPE; 3383 vce->handle = sp->handle; 3384 vce->entry_count = 1; 3385 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd); 3386 vce->vp_count = cpu_to_le16(1); 3387 3388 /* 3389 * index map in firmware starts with 1; decrement index 3390 * this is ok as we never use index 0 3391 */ 3392 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8; 3393 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7; 3394 vce->vp_idx_map[map] |= 1 << pos; 3395 } 3396 3397 static void 3398 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio) 3399 { 3400 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 3401 logio->control_flags = 3402 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO); 3403 3404 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3405 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 3406 logio->port_id[1] = sp->fcport->d_id.b.area; 3407 logio->port_id[2] = sp->fcport->d_id.b.domain; 3408 logio->vp_index = sp->fcport->vha->vp_idx; 3409 } 3410 3411 int 3412 qla2x00_start_sp(srb_t *sp) 3413 { 3414 int rval; 3415 scsi_qla_host_t *vha = sp->vha; 3416 struct qla_hw_data *ha = vha->hw; 3417 void *pkt; 3418 unsigned long flags; 3419 3420 rval = QLA_FUNCTION_FAILED; 3421 spin_lock_irqsave(&ha->hardware_lock, flags); 3422 pkt = qla2x00_alloc_iocbs(vha, sp); 3423 if (!pkt) { 3424 ql_log(ql_log_warn, vha, 0x700c, 3425 "qla2x00_alloc_iocbs failed.\n"); 3426 goto done; 3427 } 3428 3429 rval = QLA_SUCCESS; 3430 switch (sp->type) { 3431 case SRB_LOGIN_CMD: 3432 IS_FWI2_CAPABLE(ha) ? 3433 qla24xx_login_iocb(sp, pkt) : 3434 qla2x00_login_iocb(sp, pkt); 3435 break; 3436 case SRB_PRLI_CMD: 3437 qla24xx_prli_iocb(sp, pkt); 3438 break; 3439 case SRB_LOGOUT_CMD: 3440 IS_FWI2_CAPABLE(ha) ? 3441 qla24xx_logout_iocb(sp, pkt) : 3442 qla2x00_logout_iocb(sp, pkt); 3443 break; 3444 case SRB_ELS_CMD_RPT: 3445 case SRB_ELS_CMD_HST: 3446 qla24xx_els_iocb(sp, pkt); 3447 break; 3448 case SRB_CT_CMD: 3449 IS_FWI2_CAPABLE(ha) ? 3450 qla24xx_ct_iocb(sp, pkt) : 3451 qla2x00_ct_iocb(sp, pkt); 3452 break; 3453 case SRB_ADISC_CMD: 3454 IS_FWI2_CAPABLE(ha) ? 3455 qla24xx_adisc_iocb(sp, pkt) : 3456 qla2x00_adisc_iocb(sp, pkt); 3457 break; 3458 case SRB_TM_CMD: 3459 IS_QLAFX00(ha) ? 3460 qlafx00_tm_iocb(sp, pkt) : 3461 qla24xx_tm_iocb(sp, pkt); 3462 break; 3463 case SRB_FXIOCB_DCMD: 3464 case SRB_FXIOCB_BCMD: 3465 qlafx00_fxdisc_iocb(sp, pkt); 3466 break; 3467 case SRB_NVME_LS: 3468 qla_nvme_ls(sp, pkt); 3469 break; 3470 case SRB_ABT_CMD: 3471 IS_QLAFX00(ha) ? 3472 qlafx00_abort_iocb(sp, pkt) : 3473 qla24xx_abort_iocb(sp, pkt); 3474 break; 3475 case SRB_ELS_DCMD: 3476 qla24xx_els_logo_iocb(sp, pkt); 3477 break; 3478 case SRB_CT_PTHRU_CMD: 3479 qla2x00_ctpthru_cmd_iocb(sp, pkt); 3480 break; 3481 case SRB_MB_IOCB: 3482 qla2x00_mb_iocb(sp, pkt); 3483 break; 3484 case SRB_NACK_PLOGI: 3485 case SRB_NACK_PRLI: 3486 case SRB_NACK_LOGO: 3487 qla2x00_send_notify_ack_iocb(sp, pkt); 3488 break; 3489 case SRB_CTRL_VP: 3490 qla25xx_ctrlvp_iocb(sp, pkt); 3491 break; 3492 case SRB_PRLO_CMD: 3493 qla24xx_prlo_iocb(sp, pkt); 3494 break; 3495 default: 3496 break; 3497 } 3498 3499 wmb(); 3500 qla2x00_start_iocbs(vha, ha->req_q_map[0]); 3501 done: 3502 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3503 return rval; 3504 } 3505 3506 static void 3507 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, 3508 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) 3509 { 3510 uint16_t avail_dsds; 3511 uint32_t *cur_dsd; 3512 uint32_t req_data_len = 0; 3513 uint32_t rsp_data_len = 0; 3514 struct scatterlist *sg; 3515 int index; 3516 int entry_count = 1; 3517 struct bsg_job *bsg_job = sp->u.bsg_job; 3518 3519 /*Update entry type to indicate bidir command */ 3520 *((uint32_t *)(&cmd_pkt->entry_type)) = 3521 cpu_to_le32(COMMAND_BIDIRECTIONAL); 3522 3523 /* Set the transfer direction, in this set both flags 3524 * Also set the BD_WRAP_BACK flag, firmware will take care 3525 * assigning DID=SID for outgoing pkts. 3526 */ 3527 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3528 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3529 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | 3530 BD_WRAP_BACK); 3531 3532 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; 3533 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); 3534 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); 3535 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); 3536 3537 vha->bidi_stats.transfer_bytes += req_data_len; 3538 vha->bidi_stats.io_count++; 3539 3540 vha->qla_stats.output_bytes += req_data_len; 3541 vha->qla_stats.output_requests++; 3542 3543 /* Only one dsd is available for bidirectional IOCB, remaining dsds 3544 * are bundled in continuation iocb 3545 */ 3546 avail_dsds = 1; 3547 cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; 3548 3549 index = 0; 3550 3551 for_each_sg(bsg_job->request_payload.sg_list, sg, 3552 bsg_job->request_payload.sg_cnt, index) { 3553 dma_addr_t sle_dma; 3554 cont_a64_entry_t *cont_pkt; 3555 3556 /* Allocate additional continuation packets */ 3557 if (avail_dsds == 0) { 3558 /* Continuation type 1 IOCB can accomodate 3559 * 5 DSDS 3560 */ 3561 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3562 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 3563 avail_dsds = 5; 3564 entry_count++; 3565 } 3566 sle_dma = sg_dma_address(sg); 3567 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 3568 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 3569 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 3570 avail_dsds--; 3571 } 3572 /* For read request DSD will always goes to continuation IOCB 3573 * and follow the write DSD. If there is room on the current IOCB 3574 * then it is added to that IOCB else new continuation IOCB is 3575 * allocated. 3576 */ 3577 for_each_sg(bsg_job->reply_payload.sg_list, sg, 3578 bsg_job->reply_payload.sg_cnt, index) { 3579 dma_addr_t sle_dma; 3580 cont_a64_entry_t *cont_pkt; 3581 3582 /* Allocate additional continuation packets */ 3583 if (avail_dsds == 0) { 3584 /* Continuation type 1 IOCB can accomodate 3585 * 5 DSDS 3586 */ 3587 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3588 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 3589 avail_dsds = 5; 3590 entry_count++; 3591 } 3592 sle_dma = sg_dma_address(sg); 3593 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 3594 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 3595 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 3596 avail_dsds--; 3597 } 3598 /* This value should be same as number of IOCB required for this cmd */ 3599 cmd_pkt->entry_count = entry_count; 3600 } 3601 3602 int 3603 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) 3604 { 3605 3606 struct qla_hw_data *ha = vha->hw; 3607 unsigned long flags; 3608 uint32_t handle; 3609 uint32_t index; 3610 uint16_t req_cnt; 3611 uint16_t cnt; 3612 uint32_t *clr_ptr; 3613 struct cmd_bidir *cmd_pkt = NULL; 3614 struct rsp_que *rsp; 3615 struct req_que *req; 3616 int rval = EXT_STATUS_OK; 3617 3618 rval = QLA_SUCCESS; 3619 3620 rsp = ha->rsp_q_map[0]; 3621 req = vha->req; 3622 3623 /* Send marker if required */ 3624 if (vha->marker_needed != 0) { 3625 if (qla2x00_marker(vha, req, 3626 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) 3627 return EXT_STATUS_MAILBOX; 3628 vha->marker_needed = 0; 3629 } 3630 3631 /* Acquire ring specific lock */ 3632 spin_lock_irqsave(&ha->hardware_lock, flags); 3633 3634 /* Check for room in outstanding command list. */ 3635 handle = req->current_outstanding_cmd; 3636 for (index = 1; index < req->num_outstanding_cmds; index++) { 3637 handle++; 3638 if (handle == req->num_outstanding_cmds) 3639 handle = 1; 3640 if (!req->outstanding_cmds[handle]) 3641 break; 3642 } 3643 3644 if (index == req->num_outstanding_cmds) { 3645 rval = EXT_STATUS_BUSY; 3646 goto queuing_error; 3647 } 3648 3649 /* Calculate number of IOCB required */ 3650 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3651 3652 /* Check for room on request queue. */ 3653 if (req->cnt < req_cnt + 2) { 3654 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 3655 RD_REG_DWORD_RELAXED(req->req_q_out); 3656 if (req->ring_index < cnt) 3657 req->cnt = cnt - req->ring_index; 3658 else 3659 req->cnt = req->length - 3660 (req->ring_index - cnt); 3661 } 3662 if (req->cnt < req_cnt + 2) { 3663 rval = EXT_STATUS_BUSY; 3664 goto queuing_error; 3665 } 3666 3667 cmd_pkt = (struct cmd_bidir *)req->ring_ptr; 3668 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 3669 3670 /* Zero out remaining portion of packet. */ 3671 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3672 clr_ptr = (uint32_t *)cmd_pkt + 2; 3673 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3674 3675 /* Set NPORT-ID (of vha)*/ 3676 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); 3677 cmd_pkt->port_id[0] = vha->d_id.b.al_pa; 3678 cmd_pkt->port_id[1] = vha->d_id.b.area; 3679 cmd_pkt->port_id[2] = vha->d_id.b.domain; 3680 3681 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); 3682 cmd_pkt->entry_status = (uint8_t) rsp->id; 3683 /* Build command packet. */ 3684 req->current_outstanding_cmd = handle; 3685 req->outstanding_cmds[handle] = sp; 3686 sp->handle = handle; 3687 req->cnt -= req_cnt; 3688 3689 /* Send the command to the firmware */ 3690 wmb(); 3691 qla2x00_start_iocbs(vha, req); 3692 queuing_error: 3693 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3694 return rval; 3695 } 3696