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: Total number of segments with protection information 1199 * @fw_prot_opts: Protection options to be passed to firmware 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 1530 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1531 return QLA_SUCCESS; 1532 1533 queuing_error: 1534 if (tot_dsds) 1535 scsi_dma_unmap(cmd); 1536 1537 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1538 1539 return QLA_FUNCTION_FAILED; 1540 } 1541 1542 /** 1543 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP 1544 * @sp: command to send to the ISP 1545 * 1546 * Returns non-zero if a failure occurred, else zero. 1547 */ 1548 int 1549 qla24xx_dif_start_scsi(srb_t *sp) 1550 { 1551 int nseg; 1552 unsigned long flags; 1553 uint32_t *clr_ptr; 1554 uint32_t index; 1555 uint32_t handle; 1556 uint16_t cnt; 1557 uint16_t req_cnt = 0; 1558 uint16_t tot_dsds; 1559 uint16_t tot_prot_dsds; 1560 uint16_t fw_prot_opts = 0; 1561 struct req_que *req = NULL; 1562 struct rsp_que *rsp = NULL; 1563 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1564 struct scsi_qla_host *vha = sp->vha; 1565 struct qla_hw_data *ha = vha->hw; 1566 struct cmd_type_crc_2 *cmd_pkt; 1567 uint32_t status = 0; 1568 1569 #define QDSS_GOT_Q_SPACE BIT_0 1570 1571 /* Only process protection or >16 cdb in this routine */ 1572 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 1573 if (cmd->cmd_len <= 16) 1574 return qla24xx_start_scsi(sp); 1575 } 1576 1577 /* Setup device pointers. */ 1578 req = vha->req; 1579 rsp = req->rsp; 1580 1581 /* So we know we haven't pci_map'ed anything yet */ 1582 tot_dsds = 0; 1583 1584 /* Send marker if required */ 1585 if (vha->marker_needed != 0) { 1586 if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != 1587 QLA_SUCCESS) 1588 return QLA_FUNCTION_FAILED; 1589 vha->marker_needed = 0; 1590 } 1591 1592 /* Acquire ring specific lock */ 1593 spin_lock_irqsave(&ha->hardware_lock, flags); 1594 1595 /* Check for room in outstanding command list. */ 1596 handle = req->current_outstanding_cmd; 1597 for (index = 1; index < req->num_outstanding_cmds; index++) { 1598 handle++; 1599 if (handle == req->num_outstanding_cmds) 1600 handle = 1; 1601 if (!req->outstanding_cmds[handle]) 1602 break; 1603 } 1604 1605 if (index == req->num_outstanding_cmds) 1606 goto queuing_error; 1607 1608 /* Compute number of required data segments */ 1609 /* Map the sg table so we have an accurate count of sg entries needed */ 1610 if (scsi_sg_count(cmd)) { 1611 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1612 scsi_sg_count(cmd), cmd->sc_data_direction); 1613 if (unlikely(!nseg)) 1614 goto queuing_error; 1615 else 1616 sp->flags |= SRB_DMA_VALID; 1617 1618 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1619 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1620 struct qla2_sgx sgx; 1621 uint32_t partial; 1622 1623 memset(&sgx, 0, sizeof(struct qla2_sgx)); 1624 sgx.tot_bytes = scsi_bufflen(cmd); 1625 sgx.cur_sg = scsi_sglist(cmd); 1626 sgx.sp = sp; 1627 1628 nseg = 0; 1629 while (qla24xx_get_one_block_sg( 1630 cmd->device->sector_size, &sgx, &partial)) 1631 nseg++; 1632 } 1633 } else 1634 nseg = 0; 1635 1636 /* number of required data segments */ 1637 tot_dsds = nseg; 1638 1639 /* Compute number of required protection segments */ 1640 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 1641 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 1642 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 1643 if (unlikely(!nseg)) 1644 goto queuing_error; 1645 else 1646 sp->flags |= SRB_CRC_PROT_DMA_VALID; 1647 1648 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1649 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1650 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 1651 } 1652 } else { 1653 nseg = 0; 1654 } 1655 1656 req_cnt = 1; 1657 /* Total Data and protection sg segment(s) */ 1658 tot_prot_dsds = nseg; 1659 tot_dsds += nseg; 1660 if (req->cnt < (req_cnt + 2)) { 1661 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 1662 RD_REG_DWORD_RELAXED(req->req_q_out); 1663 if (req->ring_index < cnt) 1664 req->cnt = cnt - req->ring_index; 1665 else 1666 req->cnt = req->length - 1667 (req->ring_index - cnt); 1668 if (req->cnt < (req_cnt + 2)) 1669 goto queuing_error; 1670 } 1671 1672 status |= QDSS_GOT_Q_SPACE; 1673 1674 /* Build header part of command packet (excluding the OPCODE). */ 1675 req->current_outstanding_cmd = handle; 1676 req->outstanding_cmds[handle] = sp; 1677 sp->handle = handle; 1678 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1679 req->cnt -= req_cnt; 1680 1681 /* Fill-in common area */ 1682 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 1683 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 1684 1685 clr_ptr = (uint32_t *)cmd_pkt + 2; 1686 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1687 1688 /* Set NPORT-ID and LUN number*/ 1689 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1690 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1691 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1692 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1693 1694 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1695 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1696 1697 /* Total Data and protection segment(s) */ 1698 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1699 1700 /* Build IOCB segments and adjust for data protection segments */ 1701 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 1702 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 1703 QLA_SUCCESS) 1704 goto queuing_error; 1705 1706 cmd_pkt->entry_count = (uint8_t)req_cnt; 1707 /* Specify response queue number where completion should happen */ 1708 cmd_pkt->entry_status = (uint8_t) rsp->id; 1709 cmd_pkt->timeout = cpu_to_le16(0); 1710 wmb(); 1711 1712 /* Adjust ring index. */ 1713 req->ring_index++; 1714 if (req->ring_index == req->length) { 1715 req->ring_index = 0; 1716 req->ring_ptr = req->ring; 1717 } else 1718 req->ring_ptr++; 1719 1720 /* Set chip new ring index. */ 1721 WRT_REG_DWORD(req->req_q_in, req->ring_index); 1722 1723 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1724 1725 return QLA_SUCCESS; 1726 1727 queuing_error: 1728 if (status & QDSS_GOT_Q_SPACE) { 1729 req->outstanding_cmds[handle] = NULL; 1730 req->cnt += req_cnt; 1731 } 1732 /* Cleanup will be performed by the caller (queuecommand) */ 1733 1734 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1735 return QLA_FUNCTION_FAILED; 1736 } 1737 1738 /** 1739 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP 1740 * @sp: command to send to the ISP 1741 * 1742 * Returns non-zero if a failure occurred, else zero. 1743 */ 1744 static int 1745 qla2xxx_start_scsi_mq(srb_t *sp) 1746 { 1747 int nseg; 1748 unsigned long flags; 1749 uint32_t *clr_ptr; 1750 uint32_t index; 1751 uint32_t handle; 1752 struct cmd_type_7 *cmd_pkt; 1753 uint16_t cnt; 1754 uint16_t req_cnt; 1755 uint16_t tot_dsds; 1756 struct req_que *req = NULL; 1757 struct rsp_que *rsp = NULL; 1758 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1759 struct scsi_qla_host *vha = sp->fcport->vha; 1760 struct qla_hw_data *ha = vha->hw; 1761 struct qla_qpair *qpair = sp->qpair; 1762 1763 /* Acquire qpair specific lock */ 1764 spin_lock_irqsave(&qpair->qp_lock, flags); 1765 1766 /* Setup qpair pointers */ 1767 rsp = qpair->rsp; 1768 req = qpair->req; 1769 1770 /* So we know we haven't pci_map'ed anything yet */ 1771 tot_dsds = 0; 1772 1773 /* Send marker if required */ 1774 if (vha->marker_needed != 0) { 1775 if (__qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != 1776 QLA_SUCCESS) { 1777 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1778 return QLA_FUNCTION_FAILED; 1779 } 1780 vha->marker_needed = 0; 1781 } 1782 1783 /* Check for room in outstanding command list. */ 1784 handle = req->current_outstanding_cmd; 1785 for (index = 1; index < req->num_outstanding_cmds; index++) { 1786 handle++; 1787 if (handle == req->num_outstanding_cmds) 1788 handle = 1; 1789 if (!req->outstanding_cmds[handle]) 1790 break; 1791 } 1792 if (index == req->num_outstanding_cmds) 1793 goto queuing_error; 1794 1795 /* Map the sg table so we have an accurate count of sg entries needed */ 1796 if (scsi_sg_count(cmd)) { 1797 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1798 scsi_sg_count(cmd), cmd->sc_data_direction); 1799 if (unlikely(!nseg)) 1800 goto queuing_error; 1801 } else 1802 nseg = 0; 1803 1804 tot_dsds = nseg; 1805 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1806 if (req->cnt < (req_cnt + 2)) { 1807 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 1808 RD_REG_DWORD_RELAXED(req->req_q_out); 1809 if (req->ring_index < cnt) 1810 req->cnt = cnt - req->ring_index; 1811 else 1812 req->cnt = req->length - 1813 (req->ring_index - cnt); 1814 if (req->cnt < (req_cnt + 2)) 1815 goto queuing_error; 1816 } 1817 1818 /* Build command packet. */ 1819 req->current_outstanding_cmd = handle; 1820 req->outstanding_cmds[handle] = sp; 1821 sp->handle = handle; 1822 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1823 req->cnt -= req_cnt; 1824 1825 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1826 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 1827 1828 /* Zero out remaining portion of packet. */ 1829 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1830 clr_ptr = (uint32_t *)cmd_pkt + 2; 1831 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1832 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1833 1834 /* Set NPORT-ID and LUN number*/ 1835 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1836 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1837 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1838 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1839 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 1840 1841 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1842 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1843 1844 cmd_pkt->task = TSK_SIMPLE; 1845 1846 /* Load SCSI command packet. */ 1847 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 1848 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 1849 1850 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 1851 1852 /* Build IOCB segments */ 1853 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 1854 1855 /* Set total data segment count. */ 1856 cmd_pkt->entry_count = (uint8_t)req_cnt; 1857 wmb(); 1858 /* Adjust ring index. */ 1859 req->ring_index++; 1860 if (req->ring_index == req->length) { 1861 req->ring_index = 0; 1862 req->ring_ptr = req->ring; 1863 } else 1864 req->ring_ptr++; 1865 1866 sp->flags |= SRB_DMA_VALID; 1867 1868 /* Set chip new ring index. */ 1869 WRT_REG_DWORD(req->req_q_in, req->ring_index); 1870 1871 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1872 return QLA_SUCCESS; 1873 1874 queuing_error: 1875 if (tot_dsds) 1876 scsi_dma_unmap(cmd); 1877 1878 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1879 1880 return QLA_FUNCTION_FAILED; 1881 } 1882 1883 1884 /** 1885 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP 1886 * @sp: command to send to the ISP 1887 * 1888 * Returns non-zero if a failure occurred, else zero. 1889 */ 1890 int 1891 qla2xxx_dif_start_scsi_mq(srb_t *sp) 1892 { 1893 int nseg; 1894 unsigned long flags; 1895 uint32_t *clr_ptr; 1896 uint32_t index; 1897 uint32_t handle; 1898 uint16_t cnt; 1899 uint16_t req_cnt = 0; 1900 uint16_t tot_dsds; 1901 uint16_t tot_prot_dsds; 1902 uint16_t fw_prot_opts = 0; 1903 struct req_que *req = NULL; 1904 struct rsp_que *rsp = NULL; 1905 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1906 struct scsi_qla_host *vha = sp->fcport->vha; 1907 struct qla_hw_data *ha = vha->hw; 1908 struct cmd_type_crc_2 *cmd_pkt; 1909 uint32_t status = 0; 1910 struct qla_qpair *qpair = sp->qpair; 1911 1912 #define QDSS_GOT_Q_SPACE BIT_0 1913 1914 /* Check for host side state */ 1915 if (!qpair->online) { 1916 cmd->result = DID_NO_CONNECT << 16; 1917 return QLA_INTERFACE_ERROR; 1918 } 1919 1920 if (!qpair->difdix_supported && 1921 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { 1922 cmd->result = DID_NO_CONNECT << 16; 1923 return QLA_INTERFACE_ERROR; 1924 } 1925 1926 /* Only process protection or >16 cdb in this routine */ 1927 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 1928 if (cmd->cmd_len <= 16) 1929 return qla2xxx_start_scsi_mq(sp); 1930 } 1931 1932 spin_lock_irqsave(&qpair->qp_lock, flags); 1933 1934 /* Setup qpair pointers */ 1935 rsp = qpair->rsp; 1936 req = qpair->req; 1937 1938 /* So we know we haven't pci_map'ed anything yet */ 1939 tot_dsds = 0; 1940 1941 /* Send marker if required */ 1942 if (vha->marker_needed != 0) { 1943 if (__qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != 1944 QLA_SUCCESS) { 1945 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1946 return QLA_FUNCTION_FAILED; 1947 } 1948 vha->marker_needed = 0; 1949 } 1950 1951 /* Check for room in outstanding command list. */ 1952 handle = req->current_outstanding_cmd; 1953 for (index = 1; index < req->num_outstanding_cmds; index++) { 1954 handle++; 1955 if (handle == req->num_outstanding_cmds) 1956 handle = 1; 1957 if (!req->outstanding_cmds[handle]) 1958 break; 1959 } 1960 1961 if (index == req->num_outstanding_cmds) 1962 goto queuing_error; 1963 1964 /* Compute number of required data segments */ 1965 /* Map the sg table so we have an accurate count of sg entries needed */ 1966 if (scsi_sg_count(cmd)) { 1967 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1968 scsi_sg_count(cmd), cmd->sc_data_direction); 1969 if (unlikely(!nseg)) 1970 goto queuing_error; 1971 else 1972 sp->flags |= SRB_DMA_VALID; 1973 1974 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1975 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1976 struct qla2_sgx sgx; 1977 uint32_t partial; 1978 1979 memset(&sgx, 0, sizeof(struct qla2_sgx)); 1980 sgx.tot_bytes = scsi_bufflen(cmd); 1981 sgx.cur_sg = scsi_sglist(cmd); 1982 sgx.sp = sp; 1983 1984 nseg = 0; 1985 while (qla24xx_get_one_block_sg( 1986 cmd->device->sector_size, &sgx, &partial)) 1987 nseg++; 1988 } 1989 } else 1990 nseg = 0; 1991 1992 /* number of required data segments */ 1993 tot_dsds = nseg; 1994 1995 /* Compute number of required protection segments */ 1996 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 1997 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 1998 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 1999 if (unlikely(!nseg)) 2000 goto queuing_error; 2001 else 2002 sp->flags |= SRB_CRC_PROT_DMA_VALID; 2003 2004 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2005 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2006 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 2007 } 2008 } else { 2009 nseg = 0; 2010 } 2011 2012 req_cnt = 1; 2013 /* Total Data and protection sg segment(s) */ 2014 tot_prot_dsds = nseg; 2015 tot_dsds += nseg; 2016 if (req->cnt < (req_cnt + 2)) { 2017 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 2018 RD_REG_DWORD_RELAXED(req->req_q_out); 2019 if (req->ring_index < cnt) 2020 req->cnt = cnt - req->ring_index; 2021 else 2022 req->cnt = req->length - 2023 (req->ring_index - cnt); 2024 if (req->cnt < (req_cnt + 2)) 2025 goto queuing_error; 2026 } 2027 2028 status |= QDSS_GOT_Q_SPACE; 2029 2030 /* Build header part of command packet (excluding the OPCODE). */ 2031 req->current_outstanding_cmd = handle; 2032 req->outstanding_cmds[handle] = sp; 2033 sp->handle = handle; 2034 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 2035 req->cnt -= req_cnt; 2036 2037 /* Fill-in common area */ 2038 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 2039 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 2040 2041 clr_ptr = (uint32_t *)cmd_pkt + 2; 2042 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 2043 2044 /* Set NPORT-ID and LUN number*/ 2045 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2046 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2047 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2048 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2049 2050 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 2051 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2052 2053 /* Total Data and protection segment(s) */ 2054 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 2055 2056 /* Build IOCB segments and adjust for data protection segments */ 2057 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 2058 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 2059 QLA_SUCCESS) 2060 goto queuing_error; 2061 2062 cmd_pkt->entry_count = (uint8_t)req_cnt; 2063 cmd_pkt->timeout = cpu_to_le16(0); 2064 wmb(); 2065 2066 /* Adjust ring index. */ 2067 req->ring_index++; 2068 if (req->ring_index == req->length) { 2069 req->ring_index = 0; 2070 req->ring_ptr = req->ring; 2071 } else 2072 req->ring_ptr++; 2073 2074 /* Set chip new ring index. */ 2075 WRT_REG_DWORD(req->req_q_in, req->ring_index); 2076 2077 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2078 if (vha->flags.process_response_queue && 2079 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2080 qla24xx_process_response_queue(vha, rsp); 2081 2082 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2083 2084 return QLA_SUCCESS; 2085 2086 queuing_error: 2087 if (status & QDSS_GOT_Q_SPACE) { 2088 req->outstanding_cmds[handle] = NULL; 2089 req->cnt += req_cnt; 2090 } 2091 /* Cleanup will be performed by the caller (queuecommand) */ 2092 2093 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2094 return QLA_FUNCTION_FAILED; 2095 } 2096 2097 /* Generic Control-SRB manipulation functions. */ 2098 2099 /* hardware_lock assumed to be held. */ 2100 2101 void * 2102 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp) 2103 { 2104 scsi_qla_host_t *vha = qpair->vha; 2105 struct qla_hw_data *ha = vha->hw; 2106 struct req_que *req = qpair->req; 2107 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 2108 uint32_t index, handle; 2109 request_t *pkt; 2110 uint16_t cnt, req_cnt; 2111 2112 pkt = NULL; 2113 req_cnt = 1; 2114 handle = 0; 2115 2116 if (sp && (sp->type != SRB_SCSI_CMD)) { 2117 /* Adjust entry-counts as needed. */ 2118 req_cnt = sp->iocbs; 2119 } 2120 2121 /* Check for room on request queue. */ 2122 if (req->cnt < req_cnt + 2) { 2123 if (qpair->use_shadow_reg) 2124 cnt = *req->out_ptr; 2125 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) 2126 cnt = RD_REG_DWORD(®->isp25mq.req_q_out); 2127 else if (IS_P3P_TYPE(ha)) 2128 cnt = RD_REG_DWORD(®->isp82.req_q_out); 2129 else if (IS_FWI2_CAPABLE(ha)) 2130 cnt = RD_REG_DWORD(®->isp24.req_q_out); 2131 else if (IS_QLAFX00(ha)) 2132 cnt = RD_REG_DWORD(®->ispfx00.req_q_out); 2133 else 2134 cnt = qla2x00_debounce_register( 2135 ISP_REQ_Q_OUT(ha, ®->isp)); 2136 2137 if (req->ring_index < cnt) 2138 req->cnt = cnt - req->ring_index; 2139 else 2140 req->cnt = req->length - 2141 (req->ring_index - cnt); 2142 } 2143 if (req->cnt < req_cnt + 2) 2144 goto queuing_error; 2145 2146 if (sp) { 2147 /* Check for room in outstanding command list. */ 2148 handle = req->current_outstanding_cmd; 2149 for (index = 1; index < req->num_outstanding_cmds; index++) { 2150 handle++; 2151 if (handle == req->num_outstanding_cmds) 2152 handle = 1; 2153 if (!req->outstanding_cmds[handle]) 2154 break; 2155 } 2156 if (index == req->num_outstanding_cmds) { 2157 ql_log(ql_log_warn, vha, 0x700b, 2158 "No room on outstanding cmd array.\n"); 2159 goto queuing_error; 2160 } 2161 2162 /* Prep command array. */ 2163 req->current_outstanding_cmd = handle; 2164 req->outstanding_cmds[handle] = sp; 2165 sp->handle = handle; 2166 } 2167 2168 /* Prep packet */ 2169 req->cnt -= req_cnt; 2170 pkt = req->ring_ptr; 2171 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2172 if (IS_QLAFX00(ha)) { 2173 WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt); 2174 WRT_REG_WORD((void __iomem *)&pkt->handle, handle); 2175 } else { 2176 pkt->entry_count = req_cnt; 2177 pkt->handle = handle; 2178 } 2179 2180 return pkt; 2181 2182 queuing_error: 2183 qpair->tgt_counters.num_alloc_iocb_failed++; 2184 return pkt; 2185 } 2186 2187 void * 2188 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp) 2189 { 2190 scsi_qla_host_t *vha = qpair->vha; 2191 2192 if (qla2x00_reset_active(vha)) 2193 return NULL; 2194 2195 return __qla2x00_alloc_iocbs(qpair, sp); 2196 } 2197 2198 void * 2199 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp) 2200 { 2201 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp); 2202 } 2203 2204 static void 2205 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2206 { 2207 struct srb_iocb *lio = &sp->u.iocb_cmd; 2208 2209 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2210 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2211 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) 2212 logio->control_flags |= LCF_NVME_PRLI; 2213 2214 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2215 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2216 logio->port_id[1] = sp->fcport->d_id.b.area; 2217 logio->port_id[2] = sp->fcport->d_id.b.domain; 2218 logio->vp_index = sp->vha->vp_idx; 2219 } 2220 2221 static void 2222 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2223 { 2224 struct srb_iocb *lio = &sp->u.iocb_cmd; 2225 2226 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2227 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) { 2228 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2229 } else { 2230 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2231 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) 2232 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); 2233 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) 2234 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); 2235 } 2236 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2237 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2238 logio->port_id[1] = sp->fcport->d_id.b.area; 2239 logio->port_id[2] = sp->fcport->d_id.b.domain; 2240 logio->vp_index = sp->vha->vp_idx; 2241 } 2242 2243 static void 2244 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) 2245 { 2246 struct qla_hw_data *ha = sp->vha->hw; 2247 struct srb_iocb *lio = &sp->u.iocb_cmd; 2248 uint16_t opts; 2249 2250 mbx->entry_type = MBX_IOCB_TYPE; 2251 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2252 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); 2253 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; 2254 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; 2255 if (HAS_EXTENDED_IDS(ha)) { 2256 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2257 mbx->mb10 = cpu_to_le16(opts); 2258 } else { 2259 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); 2260 } 2261 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2262 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2263 sp->fcport->d_id.b.al_pa); 2264 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2265 } 2266 2267 static void 2268 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2269 { 2270 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2271 logio->control_flags = 2272 cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); 2273 if (!sp->fcport->keep_nport_handle) 2274 logio->control_flags |= cpu_to_le16(LCF_FREE_NPORT); 2275 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2276 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2277 logio->port_id[1] = sp->fcport->d_id.b.area; 2278 logio->port_id[2] = sp->fcport->d_id.b.domain; 2279 logio->vp_index = sp->vha->vp_idx; 2280 } 2281 2282 static void 2283 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) 2284 { 2285 struct qla_hw_data *ha = sp->vha->hw; 2286 2287 mbx->entry_type = MBX_IOCB_TYPE; 2288 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2289 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); 2290 mbx->mb1 = HAS_EXTENDED_IDS(ha) ? 2291 cpu_to_le16(sp->fcport->loop_id): 2292 cpu_to_le16(sp->fcport->loop_id << 8); 2293 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2294 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2295 sp->fcport->d_id.b.al_pa); 2296 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2297 /* Implicit: mbx->mbx10 = 0. */ 2298 } 2299 2300 static void 2301 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2302 { 2303 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2304 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); 2305 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2306 logio->vp_index = sp->vha->vp_idx; 2307 } 2308 2309 static void 2310 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) 2311 { 2312 struct qla_hw_data *ha = sp->vha->hw; 2313 2314 mbx->entry_type = MBX_IOCB_TYPE; 2315 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2316 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); 2317 if (HAS_EXTENDED_IDS(ha)) { 2318 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2319 mbx->mb10 = cpu_to_le16(BIT_0); 2320 } else { 2321 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); 2322 } 2323 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); 2324 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); 2325 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); 2326 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); 2327 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2328 } 2329 2330 static void 2331 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) 2332 { 2333 uint32_t flags; 2334 uint64_t lun; 2335 struct fc_port *fcport = sp->fcport; 2336 scsi_qla_host_t *vha = fcport->vha; 2337 struct qla_hw_data *ha = vha->hw; 2338 struct srb_iocb *iocb = &sp->u.iocb_cmd; 2339 struct req_que *req = vha->req; 2340 2341 flags = iocb->u.tmf.flags; 2342 lun = iocb->u.tmf.lun; 2343 2344 tsk->entry_type = TSK_MGMT_IOCB_TYPE; 2345 tsk->entry_count = 1; 2346 tsk->handle = MAKE_HANDLE(req->id, tsk->handle); 2347 tsk->nport_handle = cpu_to_le16(fcport->loop_id); 2348 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); 2349 tsk->control_flags = cpu_to_le32(flags); 2350 tsk->port_id[0] = fcport->d_id.b.al_pa; 2351 tsk->port_id[1] = fcport->d_id.b.area; 2352 tsk->port_id[2] = fcport->d_id.b.domain; 2353 tsk->vp_index = fcport->vha->vp_idx; 2354 2355 if (flags == TCF_LUN_RESET) { 2356 int_to_scsilun(lun, &tsk->lun); 2357 host_to_fcp_swap((uint8_t *)&tsk->lun, 2358 sizeof(tsk->lun)); 2359 } 2360 } 2361 2362 static void 2363 qla2x00_els_dcmd_sp_free(void *data) 2364 { 2365 srb_t *sp = data; 2366 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2367 2368 kfree(sp->fcport); 2369 2370 if (elsio->u.els_logo.els_logo_pyld) 2371 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, 2372 elsio->u.els_logo.els_logo_pyld, 2373 elsio->u.els_logo.els_logo_pyld_dma); 2374 2375 del_timer(&elsio->timer); 2376 qla2x00_rel_sp(sp); 2377 } 2378 2379 static void 2380 qla2x00_els_dcmd_iocb_timeout(void *data) 2381 { 2382 srb_t *sp = data; 2383 fc_port_t *fcport = sp->fcport; 2384 struct scsi_qla_host *vha = sp->vha; 2385 struct srb_iocb *lio = &sp->u.iocb_cmd; 2386 2387 ql_dbg(ql_dbg_io, vha, 0x3069, 2388 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n", 2389 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, 2390 fcport->d_id.b.al_pa); 2391 2392 complete(&lio->u.els_logo.comp); 2393 } 2394 2395 static void 2396 qla2x00_els_dcmd_sp_done(void *ptr, int res) 2397 { 2398 srb_t *sp = ptr; 2399 fc_port_t *fcport = sp->fcport; 2400 struct srb_iocb *lio = &sp->u.iocb_cmd; 2401 struct scsi_qla_host *vha = sp->vha; 2402 2403 ql_dbg(ql_dbg_io, vha, 0x3072, 2404 "%s hdl=%x, portid=%02x%02x%02x done\n", 2405 sp->name, sp->handle, fcport->d_id.b.domain, 2406 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2407 2408 complete(&lio->u.els_logo.comp); 2409 } 2410 2411 int 2412 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, 2413 port_id_t remote_did) 2414 { 2415 srb_t *sp; 2416 fc_port_t *fcport = NULL; 2417 struct srb_iocb *elsio = NULL; 2418 struct qla_hw_data *ha = vha->hw; 2419 struct els_logo_payload logo_pyld; 2420 int rval = QLA_SUCCESS; 2421 2422 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); 2423 if (!fcport) { 2424 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n"); 2425 return -ENOMEM; 2426 } 2427 2428 /* Alloc SRB structure */ 2429 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2430 if (!sp) { 2431 kfree(fcport); 2432 ql_log(ql_log_info, vha, 0x70e6, 2433 "SRB allocation failed\n"); 2434 return -ENOMEM; 2435 } 2436 2437 elsio = &sp->u.iocb_cmd; 2438 fcport->loop_id = 0xFFFF; 2439 fcport->d_id.b.domain = remote_did.b.domain; 2440 fcport->d_id.b.area = remote_did.b.area; 2441 fcport->d_id.b.al_pa = remote_did.b.al_pa; 2442 2443 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n", 2444 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); 2445 2446 sp->type = SRB_ELS_DCMD; 2447 sp->name = "ELS_DCMD"; 2448 sp->fcport = fcport; 2449 elsio->timeout = qla2x00_els_dcmd_iocb_timeout; 2450 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT); 2451 init_completion(&sp->u.iocb_cmd.u.els_logo.comp); 2452 sp->done = qla2x00_els_dcmd_sp_done; 2453 sp->free = qla2x00_els_dcmd_sp_free; 2454 2455 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev, 2456 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma, 2457 GFP_KERNEL); 2458 2459 if (!elsio->u.els_logo.els_logo_pyld) { 2460 sp->free(sp); 2461 return QLA_FUNCTION_FAILED; 2462 } 2463 2464 memset(&logo_pyld, 0, sizeof(struct els_logo_payload)); 2465 2466 elsio->u.els_logo.els_cmd = els_opcode; 2467 logo_pyld.opcode = els_opcode; 2468 logo_pyld.s_id[0] = vha->d_id.b.al_pa; 2469 logo_pyld.s_id[1] = vha->d_id.b.area; 2470 logo_pyld.s_id[2] = vha->d_id.b.domain; 2471 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t)); 2472 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE); 2473 2474 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld, 2475 sizeof(struct els_logo_payload)); 2476 2477 rval = qla2x00_start_sp(sp); 2478 if (rval != QLA_SUCCESS) { 2479 sp->free(sp); 2480 return QLA_FUNCTION_FAILED; 2481 } 2482 2483 ql_dbg(ql_dbg_io, vha, 0x3074, 2484 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n", 2485 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain, 2486 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2487 2488 wait_for_completion(&elsio->u.els_logo.comp); 2489 2490 sp->free(sp); 2491 return rval; 2492 } 2493 2494 static void 2495 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 2496 { 2497 scsi_qla_host_t *vha = sp->vha; 2498 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2499 2500 els_iocb->entry_type = ELS_IOCB_TYPE; 2501 els_iocb->entry_count = 1; 2502 els_iocb->sys_define = 0; 2503 els_iocb->entry_status = 0; 2504 els_iocb->handle = sp->handle; 2505 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2506 els_iocb->tx_dsd_count = 1; 2507 els_iocb->vp_index = vha->vp_idx; 2508 els_iocb->sof_type = EST_SOFI3; 2509 els_iocb->rx_dsd_count = 0; 2510 els_iocb->opcode = elsio->u.els_logo.els_cmd; 2511 2512 els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 2513 els_iocb->port_id[1] = sp->fcport->d_id.b.area; 2514 els_iocb->port_id[2] = sp->fcport->d_id.b.domain; 2515 els_iocb->s_id[0] = vha->d_id.b.al_pa; 2516 els_iocb->s_id[1] = vha->d_id.b.area; 2517 els_iocb->s_id[2] = vha->d_id.b.domain; 2518 els_iocb->control_flags = 0; 2519 2520 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) { 2521 els_iocb->tx_byte_count = els_iocb->tx_len = 2522 sizeof(struct els_plogi_payload); 2523 els_iocb->tx_address[0] = 2524 cpu_to_le32(LSD(elsio->u.els_plogi.els_plogi_pyld_dma)); 2525 els_iocb->tx_address[1] = 2526 cpu_to_le32(MSD(elsio->u.els_plogi.els_plogi_pyld_dma)); 2527 2528 els_iocb->rx_dsd_count = 1; 2529 els_iocb->rx_byte_count = els_iocb->rx_len = 2530 sizeof(struct els_plogi_payload); 2531 els_iocb->rx_address[0] = 2532 cpu_to_le32(LSD(elsio->u.els_plogi.els_resp_pyld_dma)); 2533 els_iocb->rx_address[1] = 2534 cpu_to_le32(MSD(elsio->u.els_plogi.els_resp_pyld_dma)); 2535 2536 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, 2537 "PLOGI ELS IOCB:\n"); 2538 ql_dump_buffer(ql_log_info, vha, 0x0109, 2539 (uint8_t *)els_iocb, 0x70); 2540 } else { 2541 els_iocb->tx_byte_count = sizeof(struct els_logo_payload); 2542 els_iocb->tx_address[0] = 2543 cpu_to_le32(LSD(elsio->u.els_logo.els_logo_pyld_dma)); 2544 els_iocb->tx_address[1] = 2545 cpu_to_le32(MSD(elsio->u.els_logo.els_logo_pyld_dma)); 2546 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); 2547 2548 els_iocb->rx_byte_count = 0; 2549 els_iocb->rx_address[0] = 0; 2550 els_iocb->rx_address[1] = 0; 2551 els_iocb->rx_len = 0; 2552 } 2553 2554 sp->vha->qla_stats.control_requests++; 2555 } 2556 2557 static void 2558 qla2x00_els_dcmd2_iocb_timeout(void *data) 2559 { 2560 srb_t *sp = data; 2561 fc_port_t *fcport = sp->fcport; 2562 struct scsi_qla_host *vha = sp->vha; 2563 struct qla_hw_data *ha = vha->hw; 2564 unsigned long flags = 0; 2565 int res; 2566 2567 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069, 2568 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n", 2569 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24); 2570 2571 /* Abort the exchange */ 2572 spin_lock_irqsave(&ha->hardware_lock, flags); 2573 res = ha->isp_ops->abort_command(sp); 2574 ql_dbg(ql_dbg_io, vha, 0x3070, 2575 "mbx abort_command %s\n", 2576 (res == QLA_SUCCESS) ? "successful" : "failed"); 2577 spin_unlock_irqrestore(&ha->hardware_lock, flags); 2578 2579 sp->done(sp, QLA_FUNCTION_TIMEOUT); 2580 } 2581 2582 static void 2583 qla2x00_els_dcmd2_sp_done(void *ptr, int res) 2584 { 2585 srb_t *sp = ptr; 2586 fc_port_t *fcport = sp->fcport; 2587 struct srb_iocb *lio = &sp->u.iocb_cmd; 2588 struct scsi_qla_host *vha = sp->vha; 2589 struct event_arg ea; 2590 struct qla_work_evt *e; 2591 2592 ql_dbg(ql_dbg_disc, vha, 0x3072, 2593 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n", 2594 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name); 2595 2596 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE); 2597 del_timer(&sp->u.iocb_cmd.timer); 2598 2599 if (sp->flags & SRB_WAKEUP_ON_COMP) 2600 complete(&lio->u.els_plogi.comp); 2601 else { 2602 if (res) { 2603 set_bit(RELOGIN_NEEDED, &vha->dpc_flags); 2604 } else { 2605 memset(&ea, 0, sizeof(ea)); 2606 ea.fcport = fcport; 2607 ea.rc = res; 2608 ea.event = FCME_ELS_PLOGI_DONE; 2609 qla2x00_fcport_event_handler(vha, &ea); 2610 } 2611 2612 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP); 2613 if (!e) { 2614 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2615 2616 if (elsio->u.els_plogi.els_plogi_pyld) 2617 dma_free_coherent(&sp->vha->hw->pdev->dev, 2618 elsio->u.els_plogi.tx_size, 2619 elsio->u.els_plogi.els_plogi_pyld, 2620 elsio->u.els_plogi.els_plogi_pyld_dma); 2621 2622 if (elsio->u.els_plogi.els_resp_pyld) 2623 dma_free_coherent(&sp->vha->hw->pdev->dev, 2624 elsio->u.els_plogi.rx_size, 2625 elsio->u.els_plogi.els_resp_pyld, 2626 elsio->u.els_plogi.els_resp_pyld_dma); 2627 sp->free(sp); 2628 return; 2629 } 2630 e->u.iosb.sp = sp; 2631 qla2x00_post_work(vha, e); 2632 } 2633 } 2634 2635 int 2636 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, 2637 fc_port_t *fcport, bool wait) 2638 { 2639 srb_t *sp; 2640 struct srb_iocb *elsio = NULL; 2641 struct qla_hw_data *ha = vha->hw; 2642 int rval = QLA_SUCCESS; 2643 void *ptr, *resp_ptr; 2644 2645 /* Alloc SRB structure */ 2646 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2647 if (!sp) { 2648 ql_log(ql_log_info, vha, 0x70e6, 2649 "SRB allocation failed\n"); 2650 return -ENOMEM; 2651 } 2652 2653 elsio = &sp->u.iocb_cmd; 2654 ql_dbg(ql_dbg_io, vha, 0x3073, 2655 "Enter: PLOGI portid=%06x\n", fcport->d_id.b24); 2656 2657 fcport->flags |= FCF_ASYNC_SENT; 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 if (wait) 2665 sp->flags = SRB_WAKEUP_ON_COMP; 2666 2667 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT + 2); 2668 2669 sp->done = qla2x00_els_dcmd2_sp_done; 2670 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE; 2671 2672 ptr = elsio->u.els_plogi.els_plogi_pyld = 2673 dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE, 2674 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL); 2675 2676 if (!elsio->u.els_plogi.els_plogi_pyld) { 2677 rval = QLA_FUNCTION_FAILED; 2678 goto out; 2679 } 2680 2681 resp_ptr = elsio->u.els_plogi.els_resp_pyld = 2682 dma_alloc_coherent(&ha->pdev->dev, DMA_POOL_SIZE, 2683 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL); 2684 2685 if (!elsio->u.els_plogi.els_resp_pyld) { 2686 rval = QLA_FUNCTION_FAILED; 2687 goto out; 2688 } 2689 2690 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr); 2691 2692 memset(ptr, 0, sizeof(struct els_plogi_payload)); 2693 memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); 2694 memcpy(elsio->u.els_plogi.els_plogi_pyld->data, 2695 &ha->plogi_els_payld.data, 2696 sizeof(elsio->u.els_plogi.els_plogi_pyld->data)); 2697 2698 elsio->u.els_plogi.els_cmd = els_opcode; 2699 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; 2700 2701 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n"); 2702 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109, 2703 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 0x70); 2704 2705 rval = qla2x00_start_sp(sp); 2706 if (rval != QLA_SUCCESS) { 2707 rval = QLA_FUNCTION_FAILED; 2708 } else { 2709 ql_dbg(ql_dbg_disc, vha, 0x3074, 2710 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n", 2711 sp->name, sp->handle, fcport->loop_id, 2712 fcport->d_id.b24, vha->d_id.b24); 2713 } 2714 2715 if (wait) { 2716 wait_for_completion(&elsio->u.els_plogi.comp); 2717 2718 if (elsio->u.els_plogi.comp_status != CS_COMPLETE) 2719 rval = QLA_FUNCTION_FAILED; 2720 } else { 2721 goto done; 2722 } 2723 2724 out: 2725 fcport->flags &= ~(FCF_ASYNC_SENT); 2726 if (elsio->u.els_plogi.els_plogi_pyld) 2727 dma_free_coherent(&sp->vha->hw->pdev->dev, 2728 elsio->u.els_plogi.tx_size, 2729 elsio->u.els_plogi.els_plogi_pyld, 2730 elsio->u.els_plogi.els_plogi_pyld_dma); 2731 2732 if (elsio->u.els_plogi.els_resp_pyld) 2733 dma_free_coherent(&sp->vha->hw->pdev->dev, 2734 elsio->u.els_plogi.rx_size, 2735 elsio->u.els_plogi.els_resp_pyld, 2736 elsio->u.els_plogi.els_resp_pyld_dma); 2737 2738 sp->free(sp); 2739 done: 2740 return rval; 2741 } 2742 2743 static void 2744 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 2745 { 2746 struct bsg_job *bsg_job = sp->u.bsg_job; 2747 struct fc_bsg_request *bsg_request = bsg_job->request; 2748 2749 els_iocb->entry_type = ELS_IOCB_TYPE; 2750 els_iocb->entry_count = 1; 2751 els_iocb->sys_define = 0; 2752 els_iocb->entry_status = 0; 2753 els_iocb->handle = sp->handle; 2754 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2755 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 2756 els_iocb->vp_index = sp->vha->vp_idx; 2757 els_iocb->sof_type = EST_SOFI3; 2758 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 2759 2760 els_iocb->opcode = 2761 sp->type == SRB_ELS_CMD_RPT ? 2762 bsg_request->rqst_data.r_els.els_code : 2763 bsg_request->rqst_data.h_els.command_code; 2764 els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 2765 els_iocb->port_id[1] = sp->fcport->d_id.b.area; 2766 els_iocb->port_id[2] = sp->fcport->d_id.b.domain; 2767 els_iocb->control_flags = 0; 2768 els_iocb->rx_byte_count = 2769 cpu_to_le32(bsg_job->reply_payload.payload_len); 2770 els_iocb->tx_byte_count = 2771 cpu_to_le32(bsg_job->request_payload.payload_len); 2772 2773 els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address 2774 (bsg_job->request_payload.sg_list))); 2775 els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address 2776 (bsg_job->request_payload.sg_list))); 2777 els_iocb->tx_len = cpu_to_le32(sg_dma_len 2778 (bsg_job->request_payload.sg_list)); 2779 2780 els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address 2781 (bsg_job->reply_payload.sg_list))); 2782 els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address 2783 (bsg_job->reply_payload.sg_list))); 2784 els_iocb->rx_len = cpu_to_le32(sg_dma_len 2785 (bsg_job->reply_payload.sg_list)); 2786 2787 sp->vha->qla_stats.control_requests++; 2788 } 2789 2790 static void 2791 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) 2792 { 2793 uint16_t avail_dsds; 2794 uint32_t *cur_dsd; 2795 struct scatterlist *sg; 2796 int index; 2797 uint16_t tot_dsds; 2798 scsi_qla_host_t *vha = sp->vha; 2799 struct qla_hw_data *ha = vha->hw; 2800 struct bsg_job *bsg_job = sp->u.bsg_job; 2801 int loop_iterartion = 0; 2802 int entry_count = 1; 2803 2804 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); 2805 ct_iocb->entry_type = CT_IOCB_TYPE; 2806 ct_iocb->entry_status = 0; 2807 ct_iocb->handle1 = sp->handle; 2808 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); 2809 ct_iocb->status = cpu_to_le16(0); 2810 ct_iocb->control_flags = cpu_to_le16(0); 2811 ct_iocb->timeout = 0; 2812 ct_iocb->cmd_dsd_count = 2813 cpu_to_le16(bsg_job->request_payload.sg_cnt); 2814 ct_iocb->total_dsd_count = 2815 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); 2816 ct_iocb->req_bytecount = 2817 cpu_to_le32(bsg_job->request_payload.payload_len); 2818 ct_iocb->rsp_bytecount = 2819 cpu_to_le32(bsg_job->reply_payload.payload_len); 2820 2821 ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address 2822 (bsg_job->request_payload.sg_list))); 2823 ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address 2824 (bsg_job->request_payload.sg_list))); 2825 ct_iocb->dseg_req_length = ct_iocb->req_bytecount; 2826 2827 ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address 2828 (bsg_job->reply_payload.sg_list))); 2829 ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address 2830 (bsg_job->reply_payload.sg_list))); 2831 ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; 2832 2833 avail_dsds = 1; 2834 cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; 2835 index = 0; 2836 tot_dsds = bsg_job->reply_payload.sg_cnt; 2837 2838 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { 2839 dma_addr_t sle_dma; 2840 cont_a64_entry_t *cont_pkt; 2841 2842 /* Allocate additional continuation packets? */ 2843 if (avail_dsds == 0) { 2844 /* 2845 * Five DSDs are available in the Cont. 2846 * Type 1 IOCB. 2847 */ 2848 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 2849 vha->hw->req_q_map[0]); 2850 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 2851 avail_dsds = 5; 2852 entry_count++; 2853 } 2854 2855 sle_dma = sg_dma_address(sg); 2856 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 2857 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 2858 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 2859 loop_iterartion++; 2860 avail_dsds--; 2861 } 2862 ct_iocb->entry_count = entry_count; 2863 2864 sp->vha->qla_stats.control_requests++; 2865 } 2866 2867 static void 2868 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) 2869 { 2870 uint16_t avail_dsds; 2871 uint32_t *cur_dsd; 2872 struct scatterlist *sg; 2873 int index; 2874 uint16_t cmd_dsds, rsp_dsds; 2875 scsi_qla_host_t *vha = sp->vha; 2876 struct qla_hw_data *ha = vha->hw; 2877 struct bsg_job *bsg_job = sp->u.bsg_job; 2878 int entry_count = 1; 2879 cont_a64_entry_t *cont_pkt = NULL; 2880 2881 ct_iocb->entry_type = CT_IOCB_TYPE; 2882 ct_iocb->entry_status = 0; 2883 ct_iocb->sys_define = 0; 2884 ct_iocb->handle = sp->handle; 2885 2886 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2887 ct_iocb->vp_index = sp->vha->vp_idx; 2888 ct_iocb->comp_status = cpu_to_le16(0); 2889 2890 cmd_dsds = bsg_job->request_payload.sg_cnt; 2891 rsp_dsds = bsg_job->reply_payload.sg_cnt; 2892 2893 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds); 2894 ct_iocb->timeout = 0; 2895 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds); 2896 ct_iocb->cmd_byte_count = 2897 cpu_to_le32(bsg_job->request_payload.payload_len); 2898 2899 avail_dsds = 2; 2900 cur_dsd = (uint32_t *)ct_iocb->dseg_0_address; 2901 index = 0; 2902 2903 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) { 2904 dma_addr_t sle_dma; 2905 2906 /* Allocate additional continuation packets? */ 2907 if (avail_dsds == 0) { 2908 /* 2909 * Five DSDs are available in the Cont. 2910 * Type 1 IOCB. 2911 */ 2912 cont_pkt = qla2x00_prep_cont_type1_iocb( 2913 vha, ha->req_q_map[0]); 2914 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 2915 avail_dsds = 5; 2916 entry_count++; 2917 } 2918 2919 sle_dma = sg_dma_address(sg); 2920 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 2921 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 2922 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 2923 avail_dsds--; 2924 } 2925 2926 index = 0; 2927 2928 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) { 2929 dma_addr_t sle_dma; 2930 2931 /* Allocate additional continuation packets? */ 2932 if (avail_dsds == 0) { 2933 /* 2934 * Five DSDs are available in the Cont. 2935 * Type 1 IOCB. 2936 */ 2937 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 2938 ha->req_q_map[0]); 2939 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 2940 avail_dsds = 5; 2941 entry_count++; 2942 } 2943 2944 sle_dma = sg_dma_address(sg); 2945 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 2946 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 2947 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 2948 avail_dsds--; 2949 } 2950 ct_iocb->entry_count = entry_count; 2951 } 2952 2953 /* 2954 * qla82xx_start_scsi() - Send a SCSI command to the ISP 2955 * @sp: command to send to the ISP 2956 * 2957 * Returns non-zero if a failure occurred, else zero. 2958 */ 2959 int 2960 qla82xx_start_scsi(srb_t *sp) 2961 { 2962 int nseg; 2963 unsigned long flags; 2964 struct scsi_cmnd *cmd; 2965 uint32_t *clr_ptr; 2966 uint32_t index; 2967 uint32_t handle; 2968 uint16_t cnt; 2969 uint16_t req_cnt; 2970 uint16_t tot_dsds; 2971 struct device_reg_82xx __iomem *reg; 2972 uint32_t dbval; 2973 uint32_t *fcp_dl; 2974 uint8_t additional_cdb_len; 2975 struct ct6_dsd *ctx; 2976 struct scsi_qla_host *vha = sp->vha; 2977 struct qla_hw_data *ha = vha->hw; 2978 struct req_que *req = NULL; 2979 struct rsp_que *rsp = NULL; 2980 2981 /* Setup device pointers. */ 2982 reg = &ha->iobase->isp82; 2983 cmd = GET_CMD_SP(sp); 2984 req = vha->req; 2985 rsp = ha->rsp_q_map[0]; 2986 2987 /* So we know we haven't pci_map'ed anything yet */ 2988 tot_dsds = 0; 2989 2990 dbval = 0x04 | (ha->portnum << 5); 2991 2992 /* Send marker if required */ 2993 if (vha->marker_needed != 0) { 2994 if (qla2x00_marker(vha, req, 2995 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { 2996 ql_log(ql_log_warn, vha, 0x300c, 2997 "qla2x00_marker failed for cmd=%p.\n", cmd); 2998 return QLA_FUNCTION_FAILED; 2999 } 3000 vha->marker_needed = 0; 3001 } 3002 3003 /* Acquire ring specific lock */ 3004 spin_lock_irqsave(&ha->hardware_lock, flags); 3005 3006 /* Check for room in outstanding command list. */ 3007 handle = req->current_outstanding_cmd; 3008 for (index = 1; index < req->num_outstanding_cmds; index++) { 3009 handle++; 3010 if (handle == req->num_outstanding_cmds) 3011 handle = 1; 3012 if (!req->outstanding_cmds[handle]) 3013 break; 3014 } 3015 if (index == req->num_outstanding_cmds) 3016 goto queuing_error; 3017 3018 /* Map the sg table so we have an accurate count of sg entries needed */ 3019 if (scsi_sg_count(cmd)) { 3020 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 3021 scsi_sg_count(cmd), cmd->sc_data_direction); 3022 if (unlikely(!nseg)) 3023 goto queuing_error; 3024 } else 3025 nseg = 0; 3026 3027 tot_dsds = nseg; 3028 3029 if (tot_dsds > ql2xshiftctondsd) { 3030 struct cmd_type_6 *cmd_pkt; 3031 uint16_t more_dsd_lists = 0; 3032 struct dsd_dma *dsd_ptr; 3033 uint16_t i; 3034 3035 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); 3036 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { 3037 ql_dbg(ql_dbg_io, vha, 0x300d, 3038 "Num of DSD list %d is than %d for cmd=%p.\n", 3039 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, 3040 cmd); 3041 goto queuing_error; 3042 } 3043 3044 if (more_dsd_lists <= ha->gbl_dsd_avail) 3045 goto sufficient_dsds; 3046 else 3047 more_dsd_lists -= ha->gbl_dsd_avail; 3048 3049 for (i = 0; i < more_dsd_lists; i++) { 3050 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 3051 if (!dsd_ptr) { 3052 ql_log(ql_log_fatal, vha, 0x300e, 3053 "Failed to allocate memory for dsd_dma " 3054 "for cmd=%p.\n", cmd); 3055 goto queuing_error; 3056 } 3057 3058 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, 3059 GFP_ATOMIC, &dsd_ptr->dsd_list_dma); 3060 if (!dsd_ptr->dsd_addr) { 3061 kfree(dsd_ptr); 3062 ql_log(ql_log_fatal, vha, 0x300f, 3063 "Failed to allocate memory for dsd_addr " 3064 "for cmd=%p.\n", cmd); 3065 goto queuing_error; 3066 } 3067 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); 3068 ha->gbl_dsd_avail++; 3069 } 3070 3071 sufficient_dsds: 3072 req_cnt = 1; 3073 3074 if (req->cnt < (req_cnt + 2)) { 3075 cnt = (uint16_t)RD_REG_DWORD_RELAXED( 3076 ®->req_q_out[0]); 3077 if (req->ring_index < cnt) 3078 req->cnt = cnt - req->ring_index; 3079 else 3080 req->cnt = req->length - 3081 (req->ring_index - cnt); 3082 if (req->cnt < (req_cnt + 2)) 3083 goto queuing_error; 3084 } 3085 3086 ctx = sp->u.scmd.ctx = 3087 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); 3088 if (!ctx) { 3089 ql_log(ql_log_fatal, vha, 0x3010, 3090 "Failed to allocate ctx for cmd=%p.\n", cmd); 3091 goto queuing_error; 3092 } 3093 3094 memset(ctx, 0, sizeof(struct ct6_dsd)); 3095 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, 3096 GFP_ATOMIC, &ctx->fcp_cmnd_dma); 3097 if (!ctx->fcp_cmnd) { 3098 ql_log(ql_log_fatal, vha, 0x3011, 3099 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); 3100 goto queuing_error; 3101 } 3102 3103 /* Initialize the DSD list and dma handle */ 3104 INIT_LIST_HEAD(&ctx->dsd_list); 3105 ctx->dsd_use_cnt = 0; 3106 3107 if (cmd->cmd_len > 16) { 3108 additional_cdb_len = cmd->cmd_len - 16; 3109 if ((cmd->cmd_len % 4) != 0) { 3110 /* SCSI command bigger than 16 bytes must be 3111 * multiple of 4 3112 */ 3113 ql_log(ql_log_warn, vha, 0x3012, 3114 "scsi cmd len %d not multiple of 4 " 3115 "for cmd=%p.\n", cmd->cmd_len, cmd); 3116 goto queuing_error_fcp_cmnd; 3117 } 3118 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; 3119 } else { 3120 additional_cdb_len = 0; 3121 ctx->fcp_cmnd_len = 12 + 16 + 4; 3122 } 3123 3124 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; 3125 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 3126 3127 /* Zero out remaining portion of packet. */ 3128 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 3129 clr_ptr = (uint32_t *)cmd_pkt + 2; 3130 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3131 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3132 3133 /* Set NPORT-ID and LUN number*/ 3134 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3135 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3136 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3137 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3138 cmd_pkt->vp_index = sp->vha->vp_idx; 3139 3140 /* Build IOCB segments */ 3141 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) 3142 goto queuing_error_fcp_cmnd; 3143 3144 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3145 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 3146 3147 /* build FCP_CMND IU */ 3148 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); 3149 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; 3150 3151 if (cmd->sc_data_direction == DMA_TO_DEVICE) 3152 ctx->fcp_cmnd->additional_cdb_len |= 1; 3153 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 3154 ctx->fcp_cmnd->additional_cdb_len |= 2; 3155 3156 /* Populate the FCP_PRIO. */ 3157 if (ha->flags.fcp_prio_enabled) 3158 ctx->fcp_cmnd->task_attribute |= 3159 sp->fcport->fcp_prio << 3; 3160 3161 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 3162 3163 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + 3164 additional_cdb_len); 3165 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); 3166 3167 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); 3168 cmd_pkt->fcp_cmnd_dseg_address[0] = 3169 cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); 3170 cmd_pkt->fcp_cmnd_dseg_address[1] = 3171 cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); 3172 3173 sp->flags |= SRB_FCP_CMND_DMA_VALID; 3174 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3175 /* Set total data segment count. */ 3176 cmd_pkt->entry_count = (uint8_t)req_cnt; 3177 /* Specify response queue number where 3178 * completion should happen 3179 */ 3180 cmd_pkt->entry_status = (uint8_t) rsp->id; 3181 } else { 3182 struct cmd_type_7 *cmd_pkt; 3183 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3184 if (req->cnt < (req_cnt + 2)) { 3185 cnt = (uint16_t)RD_REG_DWORD_RELAXED( 3186 ®->req_q_out[0]); 3187 if (req->ring_index < cnt) 3188 req->cnt = cnt - req->ring_index; 3189 else 3190 req->cnt = req->length - 3191 (req->ring_index - cnt); 3192 } 3193 if (req->cnt < (req_cnt + 2)) 3194 goto queuing_error; 3195 3196 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 3197 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 3198 3199 /* Zero out remaining portion of packet. */ 3200 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3201 clr_ptr = (uint32_t *)cmd_pkt + 2; 3202 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3203 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3204 3205 /* Set NPORT-ID and LUN number*/ 3206 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3207 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3208 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3209 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3210 cmd_pkt->vp_index = sp->vha->vp_idx; 3211 3212 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3213 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, 3214 sizeof(cmd_pkt->lun)); 3215 3216 /* Populate the FCP_PRIO. */ 3217 if (ha->flags.fcp_prio_enabled) 3218 cmd_pkt->task |= sp->fcport->fcp_prio << 3; 3219 3220 /* Load SCSI command packet. */ 3221 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 3222 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 3223 3224 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3225 3226 /* Build IOCB segments */ 3227 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 3228 3229 /* Set total data segment count. */ 3230 cmd_pkt->entry_count = (uint8_t)req_cnt; 3231 /* Specify response queue number where 3232 * completion should happen. 3233 */ 3234 cmd_pkt->entry_status = (uint8_t) rsp->id; 3235 3236 } 3237 /* Build command packet. */ 3238 req->current_outstanding_cmd = handle; 3239 req->outstanding_cmds[handle] = sp; 3240 sp->handle = handle; 3241 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 3242 req->cnt -= req_cnt; 3243 wmb(); 3244 3245 /* Adjust ring index. */ 3246 req->ring_index++; 3247 if (req->ring_index == req->length) { 3248 req->ring_index = 0; 3249 req->ring_ptr = req->ring; 3250 } else 3251 req->ring_ptr++; 3252 3253 sp->flags |= SRB_DMA_VALID; 3254 3255 /* Set chip new ring index. */ 3256 /* write, read and verify logic */ 3257 dbval = dbval | (req->id << 8) | (req->ring_index << 16); 3258 if (ql2xdbwr) 3259 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval); 3260 else { 3261 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); 3262 wmb(); 3263 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { 3264 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); 3265 wmb(); 3266 } 3267 } 3268 3269 /* Manage unprocessed RIO/ZIO commands in response queue. */ 3270 if (vha->flags.process_response_queue && 3271 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 3272 qla24xx_process_response_queue(vha, rsp); 3273 3274 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3275 return QLA_SUCCESS; 3276 3277 queuing_error_fcp_cmnd: 3278 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); 3279 queuing_error: 3280 if (tot_dsds) 3281 scsi_dma_unmap(cmd); 3282 3283 if (sp->u.scmd.ctx) { 3284 mempool_free(sp->u.scmd.ctx, ha->ctx_mempool); 3285 sp->u.scmd.ctx = NULL; 3286 } 3287 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3288 3289 return QLA_FUNCTION_FAILED; 3290 } 3291 3292 static void 3293 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) 3294 { 3295 struct srb_iocb *aio = &sp->u.iocb_cmd; 3296 scsi_qla_host_t *vha = sp->vha; 3297 struct req_que *req = sp->qpair->req; 3298 3299 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); 3300 abt_iocb->entry_type = ABORT_IOCB_TYPE; 3301 abt_iocb->entry_count = 1; 3302 abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle)); 3303 if (sp->fcport) { 3304 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3305 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 3306 abt_iocb->port_id[1] = sp->fcport->d_id.b.area; 3307 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; 3308 } 3309 abt_iocb->handle_to_abort = 3310 cpu_to_le32(MAKE_HANDLE(aio->u.abt.req_que_no, 3311 aio->u.abt.cmd_hndl)); 3312 abt_iocb->vp_index = vha->vp_idx; 3313 abt_iocb->req_que_no = cpu_to_le16(aio->u.abt.req_que_no); 3314 /* Send the command to the firmware */ 3315 wmb(); 3316 } 3317 3318 static void 3319 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx) 3320 { 3321 int i, sz; 3322 3323 mbx->entry_type = MBX_IOCB_TYPE; 3324 mbx->handle = sp->handle; 3325 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb)); 3326 3327 for (i = 0; i < sz; i++) 3328 mbx->mb[i] = cpu_to_le16(sp->u.iocb_cmd.u.mbx.out_mb[i]); 3329 } 3330 3331 static void 3332 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt) 3333 { 3334 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt; 3335 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg); 3336 ct_pkt->handle = sp->handle; 3337 } 3338 3339 static void qla2x00_send_notify_ack_iocb(srb_t *sp, 3340 struct nack_to_isp *nack) 3341 { 3342 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy; 3343 3344 nack->entry_type = NOTIFY_ACK_TYPE; 3345 nack->entry_count = 1; 3346 nack->ox_id = ntfy->ox_id; 3347 3348 nack->u.isp24.handle = sp->handle; 3349 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; 3350 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { 3351 nack->u.isp24.flags = ntfy->u.isp24.flags & 3352 cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); 3353 } 3354 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; 3355 nack->u.isp24.status = ntfy->u.isp24.status; 3356 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; 3357 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; 3358 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; 3359 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; 3360 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; 3361 nack->u.isp24.srr_flags = 0; 3362 nack->u.isp24.srr_reject_code = 0; 3363 nack->u.isp24.srr_reject_code_expl = 0; 3364 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; 3365 } 3366 3367 /* 3368 * Build NVME LS request 3369 */ 3370 static int 3371 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt) 3372 { 3373 struct srb_iocb *nvme; 3374 int rval = QLA_SUCCESS; 3375 3376 nvme = &sp->u.iocb_cmd; 3377 cmd_pkt->entry_type = PT_LS4_REQUEST; 3378 cmd_pkt->entry_count = 1; 3379 cmd_pkt->control_flags = CF_LS4_ORIGINATOR << CF_LS4_SHIFT; 3380 3381 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec); 3382 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3383 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 3384 3385 cmd_pkt->tx_dseg_count = 1; 3386 cmd_pkt->tx_byte_count = nvme->u.nvme.cmd_len; 3387 cmd_pkt->dseg0_len = nvme->u.nvme.cmd_len; 3388 cmd_pkt->dseg0_address[0] = cpu_to_le32(LSD(nvme->u.nvme.cmd_dma)); 3389 cmd_pkt->dseg0_address[1] = cpu_to_le32(MSD(nvme->u.nvme.cmd_dma)); 3390 3391 cmd_pkt->rx_dseg_count = 1; 3392 cmd_pkt->rx_byte_count = nvme->u.nvme.rsp_len; 3393 cmd_pkt->dseg1_len = nvme->u.nvme.rsp_len; 3394 cmd_pkt->dseg1_address[0] = cpu_to_le32(LSD(nvme->u.nvme.rsp_dma)); 3395 cmd_pkt->dseg1_address[1] = cpu_to_le32(MSD(nvme->u.nvme.rsp_dma)); 3396 3397 return rval; 3398 } 3399 3400 static void 3401 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce) 3402 { 3403 int map, pos; 3404 3405 vce->entry_type = VP_CTRL_IOCB_TYPE; 3406 vce->handle = sp->handle; 3407 vce->entry_count = 1; 3408 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd); 3409 vce->vp_count = cpu_to_le16(1); 3410 3411 /* 3412 * index map in firmware starts with 1; decrement index 3413 * this is ok as we never use index 0 3414 */ 3415 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8; 3416 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7; 3417 vce->vp_idx_map[map] |= 1 << pos; 3418 } 3419 3420 static void 3421 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio) 3422 { 3423 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 3424 logio->control_flags = 3425 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO); 3426 3427 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3428 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 3429 logio->port_id[1] = sp->fcport->d_id.b.area; 3430 logio->port_id[2] = sp->fcport->d_id.b.domain; 3431 logio->vp_index = sp->fcport->vha->vp_idx; 3432 } 3433 3434 int 3435 qla2x00_start_sp(srb_t *sp) 3436 { 3437 int rval; 3438 scsi_qla_host_t *vha = sp->vha; 3439 struct qla_hw_data *ha = vha->hw; 3440 struct qla_qpair *qp = sp->qpair; 3441 void *pkt; 3442 unsigned long flags; 3443 3444 rval = QLA_FUNCTION_FAILED; 3445 spin_lock_irqsave(qp->qp_lock_ptr, flags); 3446 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp); 3447 if (!pkt) { 3448 ql_log(ql_log_warn, vha, 0x700c, 3449 "qla2x00_alloc_iocbs failed.\n"); 3450 goto done; 3451 } 3452 3453 rval = QLA_SUCCESS; 3454 switch (sp->type) { 3455 case SRB_LOGIN_CMD: 3456 IS_FWI2_CAPABLE(ha) ? 3457 qla24xx_login_iocb(sp, pkt) : 3458 qla2x00_login_iocb(sp, pkt); 3459 break; 3460 case SRB_PRLI_CMD: 3461 qla24xx_prli_iocb(sp, pkt); 3462 break; 3463 case SRB_LOGOUT_CMD: 3464 IS_FWI2_CAPABLE(ha) ? 3465 qla24xx_logout_iocb(sp, pkt) : 3466 qla2x00_logout_iocb(sp, pkt); 3467 break; 3468 case SRB_ELS_CMD_RPT: 3469 case SRB_ELS_CMD_HST: 3470 qla24xx_els_iocb(sp, pkt); 3471 break; 3472 case SRB_CT_CMD: 3473 IS_FWI2_CAPABLE(ha) ? 3474 qla24xx_ct_iocb(sp, pkt) : 3475 qla2x00_ct_iocb(sp, pkt); 3476 break; 3477 case SRB_ADISC_CMD: 3478 IS_FWI2_CAPABLE(ha) ? 3479 qla24xx_adisc_iocb(sp, pkt) : 3480 qla2x00_adisc_iocb(sp, pkt); 3481 break; 3482 case SRB_TM_CMD: 3483 IS_QLAFX00(ha) ? 3484 qlafx00_tm_iocb(sp, pkt) : 3485 qla24xx_tm_iocb(sp, pkt); 3486 break; 3487 case SRB_FXIOCB_DCMD: 3488 case SRB_FXIOCB_BCMD: 3489 qlafx00_fxdisc_iocb(sp, pkt); 3490 break; 3491 case SRB_NVME_LS: 3492 qla_nvme_ls(sp, pkt); 3493 break; 3494 case SRB_ABT_CMD: 3495 IS_QLAFX00(ha) ? 3496 qlafx00_abort_iocb(sp, pkt) : 3497 qla24xx_abort_iocb(sp, pkt); 3498 break; 3499 case SRB_ELS_DCMD: 3500 qla24xx_els_logo_iocb(sp, pkt); 3501 break; 3502 case SRB_CT_PTHRU_CMD: 3503 qla2x00_ctpthru_cmd_iocb(sp, pkt); 3504 break; 3505 case SRB_MB_IOCB: 3506 qla2x00_mb_iocb(sp, pkt); 3507 break; 3508 case SRB_NACK_PLOGI: 3509 case SRB_NACK_PRLI: 3510 case SRB_NACK_LOGO: 3511 qla2x00_send_notify_ack_iocb(sp, pkt); 3512 break; 3513 case SRB_CTRL_VP: 3514 qla25xx_ctrlvp_iocb(sp, pkt); 3515 break; 3516 case SRB_PRLO_CMD: 3517 qla24xx_prlo_iocb(sp, pkt); 3518 break; 3519 default: 3520 break; 3521 } 3522 3523 wmb(); 3524 qla2x00_start_iocbs(vha, qp->req); 3525 done: 3526 spin_unlock_irqrestore(qp->qp_lock_ptr, flags); 3527 return rval; 3528 } 3529 3530 static void 3531 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, 3532 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) 3533 { 3534 uint16_t avail_dsds; 3535 uint32_t *cur_dsd; 3536 uint32_t req_data_len = 0; 3537 uint32_t rsp_data_len = 0; 3538 struct scatterlist *sg; 3539 int index; 3540 int entry_count = 1; 3541 struct bsg_job *bsg_job = sp->u.bsg_job; 3542 3543 /*Update entry type to indicate bidir command */ 3544 *((uint32_t *)(&cmd_pkt->entry_type)) = 3545 cpu_to_le32(COMMAND_BIDIRECTIONAL); 3546 3547 /* Set the transfer direction, in this set both flags 3548 * Also set the BD_WRAP_BACK flag, firmware will take care 3549 * assigning DID=SID for outgoing pkts. 3550 */ 3551 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3552 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3553 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | 3554 BD_WRAP_BACK); 3555 3556 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; 3557 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); 3558 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); 3559 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); 3560 3561 vha->bidi_stats.transfer_bytes += req_data_len; 3562 vha->bidi_stats.io_count++; 3563 3564 vha->qla_stats.output_bytes += req_data_len; 3565 vha->qla_stats.output_requests++; 3566 3567 /* Only one dsd is available for bidirectional IOCB, remaining dsds 3568 * are bundled in continuation iocb 3569 */ 3570 avail_dsds = 1; 3571 cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; 3572 3573 index = 0; 3574 3575 for_each_sg(bsg_job->request_payload.sg_list, sg, 3576 bsg_job->request_payload.sg_cnt, index) { 3577 dma_addr_t sle_dma; 3578 cont_a64_entry_t *cont_pkt; 3579 3580 /* Allocate additional continuation packets */ 3581 if (avail_dsds == 0) { 3582 /* Continuation type 1 IOCB can accomodate 3583 * 5 DSDS 3584 */ 3585 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3586 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 3587 avail_dsds = 5; 3588 entry_count++; 3589 } 3590 sle_dma = sg_dma_address(sg); 3591 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 3592 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 3593 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 3594 avail_dsds--; 3595 } 3596 /* For read request DSD will always goes to continuation IOCB 3597 * and follow the write DSD. If there is room on the current IOCB 3598 * then it is added to that IOCB else new continuation IOCB is 3599 * allocated. 3600 */ 3601 for_each_sg(bsg_job->reply_payload.sg_list, sg, 3602 bsg_job->reply_payload.sg_cnt, index) { 3603 dma_addr_t sle_dma; 3604 cont_a64_entry_t *cont_pkt; 3605 3606 /* Allocate additional continuation packets */ 3607 if (avail_dsds == 0) { 3608 /* Continuation type 1 IOCB can accomodate 3609 * 5 DSDS 3610 */ 3611 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3612 cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; 3613 avail_dsds = 5; 3614 entry_count++; 3615 } 3616 sle_dma = sg_dma_address(sg); 3617 *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); 3618 *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); 3619 *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); 3620 avail_dsds--; 3621 } 3622 /* This value should be same as number of IOCB required for this cmd */ 3623 cmd_pkt->entry_count = entry_count; 3624 } 3625 3626 int 3627 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) 3628 { 3629 3630 struct qla_hw_data *ha = vha->hw; 3631 unsigned long flags; 3632 uint32_t handle; 3633 uint32_t index; 3634 uint16_t req_cnt; 3635 uint16_t cnt; 3636 uint32_t *clr_ptr; 3637 struct cmd_bidir *cmd_pkt = NULL; 3638 struct rsp_que *rsp; 3639 struct req_que *req; 3640 int rval = EXT_STATUS_OK; 3641 3642 rval = QLA_SUCCESS; 3643 3644 rsp = ha->rsp_q_map[0]; 3645 req = vha->req; 3646 3647 /* Send marker if required */ 3648 if (vha->marker_needed != 0) { 3649 if (qla2x00_marker(vha, req, 3650 rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) 3651 return EXT_STATUS_MAILBOX; 3652 vha->marker_needed = 0; 3653 } 3654 3655 /* Acquire ring specific lock */ 3656 spin_lock_irqsave(&ha->hardware_lock, flags); 3657 3658 /* Check for room in outstanding command list. */ 3659 handle = req->current_outstanding_cmd; 3660 for (index = 1; index < req->num_outstanding_cmds; index++) { 3661 handle++; 3662 if (handle == req->num_outstanding_cmds) 3663 handle = 1; 3664 if (!req->outstanding_cmds[handle]) 3665 break; 3666 } 3667 3668 if (index == req->num_outstanding_cmds) { 3669 rval = EXT_STATUS_BUSY; 3670 goto queuing_error; 3671 } 3672 3673 /* Calculate number of IOCB required */ 3674 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3675 3676 /* Check for room on request queue. */ 3677 if (req->cnt < req_cnt + 2) { 3678 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 3679 RD_REG_DWORD_RELAXED(req->req_q_out); 3680 if (req->ring_index < cnt) 3681 req->cnt = cnt - req->ring_index; 3682 else 3683 req->cnt = req->length - 3684 (req->ring_index - cnt); 3685 } 3686 if (req->cnt < req_cnt + 2) { 3687 rval = EXT_STATUS_BUSY; 3688 goto queuing_error; 3689 } 3690 3691 cmd_pkt = (struct cmd_bidir *)req->ring_ptr; 3692 cmd_pkt->handle = MAKE_HANDLE(req->id, handle); 3693 3694 /* Zero out remaining portion of packet. */ 3695 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3696 clr_ptr = (uint32_t *)cmd_pkt + 2; 3697 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3698 3699 /* Set NPORT-ID (of vha)*/ 3700 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); 3701 cmd_pkt->port_id[0] = vha->d_id.b.al_pa; 3702 cmd_pkt->port_id[1] = vha->d_id.b.area; 3703 cmd_pkt->port_id[2] = vha->d_id.b.domain; 3704 3705 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); 3706 cmd_pkt->entry_status = (uint8_t) rsp->id; 3707 /* Build command packet. */ 3708 req->current_outstanding_cmd = handle; 3709 req->outstanding_cmds[handle] = sp; 3710 sp->handle = handle; 3711 req->cnt -= req_cnt; 3712 3713 /* Send the command to the firmware */ 3714 wmb(); 3715 qla2x00_start_iocbs(vha, req); 3716 queuing_error: 3717 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3718 return rval; 3719 } 3720