1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * QLogic Fibre Channel HBA Driver 4 * Copyright (c) 2003-2014 QLogic Corporation 5 */ 6 #include "qla_def.h" 7 #include "qla_target.h" 8 9 #include <linux/blkdev.h> 10 #include <linux/delay.h> 11 12 #include <scsi/scsi_tcq.h> 13 14 /** 15 * qla2x00_get_cmd_direction() - Determine control_flag data direction. 16 * @sp: SCSI command 17 * 18 * Returns the proper CF_* direction based on CDB. 19 */ 20 static inline uint16_t 21 qla2x00_get_cmd_direction(srb_t *sp) 22 { 23 uint16_t cflags; 24 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 25 struct scsi_qla_host *vha = sp->vha; 26 27 cflags = 0; 28 29 /* Set transfer direction */ 30 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 31 cflags = CF_WRITE; 32 vha->qla_stats.output_bytes += scsi_bufflen(cmd); 33 vha->qla_stats.output_requests++; 34 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 35 cflags = CF_READ; 36 vha->qla_stats.input_bytes += scsi_bufflen(cmd); 37 vha->qla_stats.input_requests++; 38 } 39 return (cflags); 40 } 41 42 /** 43 * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and 44 * Continuation Type 0 IOCBs to allocate. 45 * 46 * @dsds: number of data segment descriptors needed 47 * 48 * Returns the number of IOCB entries needed to store @dsds. 49 */ 50 uint16_t 51 qla2x00_calc_iocbs_32(uint16_t dsds) 52 { 53 uint16_t iocbs; 54 55 iocbs = 1; 56 if (dsds > 3) { 57 iocbs += (dsds - 3) / 7; 58 if ((dsds - 3) % 7) 59 iocbs++; 60 } 61 return (iocbs); 62 } 63 64 /** 65 * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and 66 * Continuation Type 1 IOCBs to allocate. 67 * 68 * @dsds: number of data segment descriptors needed 69 * 70 * Returns the number of IOCB entries needed to store @dsds. 71 */ 72 uint16_t 73 qla2x00_calc_iocbs_64(uint16_t dsds) 74 { 75 uint16_t iocbs; 76 77 iocbs = 1; 78 if (dsds > 2) { 79 iocbs += (dsds - 2) / 5; 80 if ((dsds - 2) % 5) 81 iocbs++; 82 } 83 return (iocbs); 84 } 85 86 /** 87 * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. 88 * @vha: HA context 89 * 90 * Returns a pointer to the Continuation Type 0 IOCB packet. 91 */ 92 static inline cont_entry_t * 93 qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) 94 { 95 cont_entry_t *cont_pkt; 96 struct req_que *req = vha->req; 97 /* Adjust ring index. */ 98 req->ring_index++; 99 if (req->ring_index == req->length) { 100 req->ring_index = 0; 101 req->ring_ptr = req->ring; 102 } else { 103 req->ring_ptr++; 104 } 105 106 cont_pkt = (cont_entry_t *)req->ring_ptr; 107 108 /* Load packet defaults. */ 109 put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_type); 110 111 return (cont_pkt); 112 } 113 114 /** 115 * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. 116 * @vha: HA context 117 * @req: request queue 118 * 119 * Returns a pointer to the continuation type 1 IOCB packet. 120 */ 121 cont_a64_entry_t * 122 qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) 123 { 124 cont_a64_entry_t *cont_pkt; 125 126 /* Adjust ring index. */ 127 req->ring_index++; 128 if (req->ring_index == req->length) { 129 req->ring_index = 0; 130 req->ring_ptr = req->ring; 131 } else { 132 req->ring_ptr++; 133 } 134 135 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 136 137 /* Load packet defaults. */ 138 put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 : 139 CONTINUE_A64_TYPE, &cont_pkt->entry_type); 140 141 return (cont_pkt); 142 } 143 144 inline int 145 qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) 146 { 147 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 148 149 /* We always use DIFF Bundling for best performance */ 150 *fw_prot_opts = 0; 151 152 /* Translate SCSI opcode to a protection opcode */ 153 switch (scsi_get_prot_op(cmd)) { 154 case SCSI_PROT_READ_STRIP: 155 *fw_prot_opts |= PO_MODE_DIF_REMOVE; 156 break; 157 case SCSI_PROT_WRITE_INSERT: 158 *fw_prot_opts |= PO_MODE_DIF_INSERT; 159 break; 160 case SCSI_PROT_READ_INSERT: 161 *fw_prot_opts |= PO_MODE_DIF_INSERT; 162 break; 163 case SCSI_PROT_WRITE_STRIP: 164 *fw_prot_opts |= PO_MODE_DIF_REMOVE; 165 break; 166 case SCSI_PROT_READ_PASS: 167 case SCSI_PROT_WRITE_PASS: 168 if (cmd->prot_flags & SCSI_PROT_IP_CHECKSUM) 169 *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM; 170 else 171 *fw_prot_opts |= PO_MODE_DIF_PASS; 172 break; 173 default: /* Normal Request */ 174 *fw_prot_opts |= PO_MODE_DIF_PASS; 175 break; 176 } 177 178 if (!(cmd->prot_flags & SCSI_PROT_GUARD_CHECK)) 179 *fw_prot_opts |= PO_DISABLE_GUARD_CHECK; 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 struct dsd32 *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 put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_type); 206 207 /* No data transfer */ 208 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 209 cmd_pkt->byte_count = cpu_to_le32(0); 210 return; 211 } 212 213 vha = sp->vha; 214 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); 215 216 /* Three DSDs are available in the Command Type 2 IOCB */ 217 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32); 218 cur_dsd = cmd_pkt->dsd32; 219 220 /* Load data segments */ 221 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 222 cont_entry_t *cont_pkt; 223 224 /* Allocate additional continuation packets? */ 225 if (avail_dsds == 0) { 226 /* 227 * Seven DSDs are available in the Continuation 228 * Type 0 IOCB. 229 */ 230 cont_pkt = qla2x00_prep_cont_type0_iocb(vha); 231 cur_dsd = cont_pkt->dsd; 232 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 233 } 234 235 append_dsd32(&cur_dsd, sg); 236 avail_dsds--; 237 } 238 } 239 240 /** 241 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit 242 * capable IOCB types. 243 * 244 * @sp: SRB command to process 245 * @cmd_pkt: Command type 3 IOCB 246 * @tot_dsds: Total number of segments to transfer 247 */ 248 void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, 249 uint16_t tot_dsds) 250 { 251 uint16_t avail_dsds; 252 struct dsd64 *cur_dsd; 253 scsi_qla_host_t *vha; 254 struct scsi_cmnd *cmd; 255 struct scatterlist *sg; 256 int i; 257 258 cmd = GET_CMD_SP(sp); 259 260 /* Update entry type to indicate Command Type 3 IOCB */ 261 put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_type); 262 263 /* No data transfer */ 264 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 265 cmd_pkt->byte_count = cpu_to_le32(0); 266 return; 267 } 268 269 vha = sp->vha; 270 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); 271 272 /* Two DSDs are available in the Command Type 3 IOCB */ 273 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64); 274 cur_dsd = cmd_pkt->dsd64; 275 276 /* Load data segments */ 277 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 278 cont_a64_entry_t *cont_pkt; 279 280 /* Allocate additional continuation packets? */ 281 if (avail_dsds == 0) { 282 /* 283 * Five DSDs are available in the Continuation 284 * Type 1 IOCB. 285 */ 286 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 287 cur_dsd = cont_pkt->dsd; 288 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 289 } 290 291 append_dsd64(&cur_dsd, sg); 292 avail_dsds--; 293 } 294 } 295 296 /* 297 * Find the first handle that is not in use, starting from 298 * req->current_outstanding_cmd + 1. The caller must hold the lock that is 299 * associated with @req. 300 */ 301 uint32_t qla2xxx_get_next_handle(struct req_que *req) 302 { 303 uint32_t index, handle = req->current_outstanding_cmd; 304 305 for (index = 1; index < req->num_outstanding_cmds; index++) { 306 handle++; 307 if (handle == req->num_outstanding_cmds) 308 handle = 1; 309 if (!req->outstanding_cmds[handle]) 310 return handle; 311 } 312 313 return 0; 314 } 315 316 /** 317 * qla2x00_start_scsi() - Send a SCSI command to the ISP 318 * @sp: command to send to the ISP 319 * 320 * Returns non-zero if a failure occurred, else zero. 321 */ 322 int 323 qla2x00_start_scsi(srb_t *sp) 324 { 325 int nseg; 326 unsigned long flags; 327 scsi_qla_host_t *vha; 328 struct scsi_cmnd *cmd; 329 uint32_t *clr_ptr; 330 uint32_t handle; 331 cmd_entry_t *cmd_pkt; 332 uint16_t cnt; 333 uint16_t req_cnt; 334 uint16_t tot_dsds; 335 struct device_reg_2xxx __iomem *reg; 336 struct qla_hw_data *ha; 337 struct req_que *req; 338 struct rsp_que *rsp; 339 340 /* Setup device pointers. */ 341 vha = sp->vha; 342 ha = vha->hw; 343 reg = &ha->iobase->isp; 344 cmd = GET_CMD_SP(sp); 345 req = ha->req_q_map[0]; 346 rsp = ha->rsp_q_map[0]; 347 /* So we know we haven't pci_map'ed anything yet */ 348 tot_dsds = 0; 349 350 /* Send marker if required */ 351 if (vha->marker_needed != 0) { 352 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 353 QLA_SUCCESS) { 354 return (QLA_FUNCTION_FAILED); 355 } 356 vha->marker_needed = 0; 357 } 358 359 /* Acquire ring specific lock */ 360 spin_lock_irqsave(&ha->hardware_lock, flags); 361 362 handle = qla2xxx_get_next_handle(req); 363 if (handle == 0) 364 goto queuing_error; 365 366 /* Map the sg table so we have an accurate count of sg entries needed */ 367 if (scsi_sg_count(cmd)) { 368 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 369 scsi_sg_count(cmd), cmd->sc_data_direction); 370 if (unlikely(!nseg)) 371 goto queuing_error; 372 } else 373 nseg = 0; 374 375 tot_dsds = nseg; 376 377 /* Calculate the number of request entries needed. */ 378 req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); 379 if (req->cnt < (req_cnt + 2)) { 380 cnt = rd_reg_word_relaxed(ISP_REQ_Q_OUT(ha, reg)); 381 if (req->ring_index < cnt) 382 req->cnt = cnt - req->ring_index; 383 else 384 req->cnt = req->length - 385 (req->ring_index - cnt); 386 /* If still no head room then bail out */ 387 if (req->cnt < (req_cnt + 2)) 388 goto queuing_error; 389 } 390 391 /* Build command packet */ 392 req->current_outstanding_cmd = handle; 393 req->outstanding_cmds[handle] = sp; 394 sp->handle = handle; 395 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 396 req->cnt -= req_cnt; 397 398 cmd_pkt = (cmd_entry_t *)req->ring_ptr; 399 cmd_pkt->handle = handle; 400 /* Zero out remaining portion of packet. */ 401 clr_ptr = (uint32_t *)cmd_pkt + 2; 402 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 403 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 404 405 /* Set target ID and LUN number*/ 406 SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); 407 cmd_pkt->lun = cpu_to_le16(cmd->device->lun); 408 cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG); 409 410 /* Load SCSI command packet. */ 411 memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); 412 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 413 414 /* Build IOCB segments */ 415 ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); 416 417 /* Set total data segment count. */ 418 cmd_pkt->entry_count = (uint8_t)req_cnt; 419 wmb(); 420 421 /* Adjust ring index. */ 422 req->ring_index++; 423 if (req->ring_index == req->length) { 424 req->ring_index = 0; 425 req->ring_ptr = req->ring; 426 } else 427 req->ring_ptr++; 428 429 sp->flags |= SRB_DMA_VALID; 430 431 /* Set chip new ring index. */ 432 wrt_reg_word(ISP_REQ_Q_IN(ha, reg), req->ring_index); 433 rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ 434 435 /* Manage unprocessed RIO/ZIO commands in response queue. */ 436 if (vha->flags.process_response_queue && 437 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 438 qla2x00_process_response_queue(rsp); 439 440 spin_unlock_irqrestore(&ha->hardware_lock, flags); 441 return (QLA_SUCCESS); 442 443 queuing_error: 444 if (tot_dsds) 445 scsi_dma_unmap(cmd); 446 447 spin_unlock_irqrestore(&ha->hardware_lock, flags); 448 449 return (QLA_FUNCTION_FAILED); 450 } 451 452 /** 453 * qla2x00_start_iocbs() - Execute the IOCB command 454 * @vha: HA context 455 * @req: request queue 456 */ 457 void 458 qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) 459 { 460 struct qla_hw_data *ha = vha->hw; 461 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 462 463 if (IS_P3P_TYPE(ha)) { 464 qla82xx_start_iocbs(vha); 465 } else { 466 /* Adjust ring index. */ 467 req->ring_index++; 468 if (req->ring_index == req->length) { 469 req->ring_index = 0; 470 req->ring_ptr = req->ring; 471 } else 472 req->ring_ptr++; 473 474 /* Set chip new ring index. */ 475 if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) { 476 wrt_reg_dword(req->req_q_in, req->ring_index); 477 } else if (IS_QLA83XX(ha)) { 478 wrt_reg_dword(req->req_q_in, req->ring_index); 479 rd_reg_dword_relaxed(&ha->iobase->isp24.hccr); 480 } else if (IS_QLAFX00(ha)) { 481 wrt_reg_dword(®->ispfx00.req_q_in, req->ring_index); 482 rd_reg_dword_relaxed(®->ispfx00.req_q_in); 483 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); 484 } else if (IS_FWI2_CAPABLE(ha)) { 485 wrt_reg_dword(®->isp24.req_q_in, req->ring_index); 486 rd_reg_dword_relaxed(®->isp24.req_q_in); 487 } else { 488 wrt_reg_word(ISP_REQ_Q_IN(ha, ®->isp), 489 req->ring_index); 490 rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, ®->isp)); 491 } 492 } 493 } 494 495 /** 496 * __qla2x00_marker() - Send a marker IOCB to the firmware. 497 * @vha: HA context 498 * @qpair: queue pair pointer 499 * @loop_id: loop ID 500 * @lun: LUN 501 * @type: marker modifier 502 * 503 * Can be called from both normal and interrupt context. 504 * 505 * Returns non-zero if a failure occurred, else zero. 506 */ 507 static int 508 __qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair, 509 uint16_t loop_id, uint64_t lun, uint8_t type) 510 { 511 mrk_entry_t *mrk; 512 struct mrk_entry_24xx *mrk24 = NULL; 513 struct req_que *req = qpair->req; 514 struct qla_hw_data *ha = vha->hw; 515 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 516 517 mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, NULL); 518 if (mrk == NULL) { 519 ql_log(ql_log_warn, base_vha, 0x3026, 520 "Failed to allocate Marker IOCB.\n"); 521 522 return (QLA_FUNCTION_FAILED); 523 } 524 525 mrk->entry_type = MARKER_TYPE; 526 mrk->modifier = type; 527 if (type != MK_SYNC_ALL) { 528 if (IS_FWI2_CAPABLE(ha)) { 529 mrk24 = (struct mrk_entry_24xx *) mrk; 530 mrk24->nport_handle = cpu_to_le16(loop_id); 531 int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun); 532 host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); 533 mrk24->vp_index = vha->vp_idx; 534 mrk24->handle = make_handle(req->id, mrk24->handle); 535 } else { 536 SET_TARGET_ID(ha, mrk->target, loop_id); 537 mrk->lun = cpu_to_le16((uint16_t)lun); 538 } 539 } 540 wmb(); 541 542 qla2x00_start_iocbs(vha, req); 543 544 return (QLA_SUCCESS); 545 } 546 547 int 548 qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair, 549 uint16_t loop_id, uint64_t lun, uint8_t type) 550 { 551 int ret; 552 unsigned long flags = 0; 553 554 spin_lock_irqsave(qpair->qp_lock_ptr, flags); 555 ret = __qla2x00_marker(vha, qpair, loop_id, lun, type); 556 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); 557 558 return (ret); 559 } 560 561 /* 562 * qla2x00_issue_marker 563 * 564 * Issue marker 565 * Caller CAN have hardware lock held as specified by ha_locked parameter. 566 * Might release it, then reaquire. 567 */ 568 int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) 569 { 570 if (ha_locked) { 571 if (__qla2x00_marker(vha, vha->hw->base_qpair, 0, 0, 572 MK_SYNC_ALL) != QLA_SUCCESS) 573 return QLA_FUNCTION_FAILED; 574 } else { 575 if (qla2x00_marker(vha, vha->hw->base_qpair, 0, 0, 576 MK_SYNC_ALL) != QLA_SUCCESS) 577 return QLA_FUNCTION_FAILED; 578 } 579 vha->marker_needed = 0; 580 581 return QLA_SUCCESS; 582 } 583 584 static inline int 585 qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, 586 uint16_t tot_dsds) 587 { 588 struct dsd64 *cur_dsd = NULL, *next_dsd; 589 scsi_qla_host_t *vha; 590 struct qla_hw_data *ha; 591 struct scsi_cmnd *cmd; 592 struct scatterlist *cur_seg; 593 uint8_t avail_dsds; 594 uint8_t first_iocb = 1; 595 uint32_t dsd_list_len; 596 struct dsd_dma *dsd_ptr; 597 struct ct6_dsd *ctx; 598 struct qla_qpair *qpair = sp->qpair; 599 600 cmd = GET_CMD_SP(sp); 601 602 /* Update entry type to indicate Command Type 3 IOCB */ 603 put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type); 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 qpair->counters.output_bytes += scsi_bufflen(cmd); 618 qpair->counters.output_requests++; 619 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 620 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); 621 qpair->counters.input_bytes += scsi_bufflen(cmd); 622 qpair->counters.input_requests++; 623 } 624 625 cur_seg = scsi_sglist(cmd); 626 ctx = sp->u.scmd.ct6_ctx; 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 put_unaligned_le64(dsd_ptr->dsd_list_dma, 646 &cmd_pkt->fcp_dsd.address); 647 cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len); 648 } else { 649 put_unaligned_le64(dsd_ptr->dsd_list_dma, 650 &cur_dsd->address); 651 cur_dsd->length = cpu_to_le32(dsd_list_len); 652 cur_dsd++; 653 } 654 cur_dsd = next_dsd; 655 while (avail_dsds) { 656 append_dsd64(&cur_dsd, cur_seg); 657 cur_seg = sg_next(cur_seg); 658 avail_dsds--; 659 } 660 } 661 662 /* Null termination */ 663 cur_dsd->address = 0; 664 cur_dsd->length = 0; 665 cur_dsd++; 666 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); 667 return 0; 668 } 669 670 /* 671 * qla24xx_calc_dsd_lists() - Determine number of DSD list required 672 * for Command Type 6. 673 * 674 * @dsds: number of data segment descriptors needed 675 * 676 * Returns the number of dsd list needed to store @dsds. 677 */ 678 static inline uint16_t 679 qla24xx_calc_dsd_lists(uint16_t dsds) 680 { 681 uint16_t dsd_lists = 0; 682 683 dsd_lists = (dsds/QLA_DSDS_PER_IOCB); 684 if (dsds % QLA_DSDS_PER_IOCB) 685 dsd_lists++; 686 return dsd_lists; 687 } 688 689 690 /** 691 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 692 * IOCB types. 693 * 694 * @sp: SRB command to process 695 * @cmd_pkt: Command type 3 IOCB 696 * @tot_dsds: Total number of segments to transfer 697 * @req: pointer to request queue 698 */ 699 inline void 700 qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, 701 uint16_t tot_dsds, struct req_que *req) 702 { 703 uint16_t avail_dsds; 704 struct dsd64 *cur_dsd; 705 scsi_qla_host_t *vha; 706 struct scsi_cmnd *cmd; 707 struct scatterlist *sg; 708 int i; 709 struct qla_qpair *qpair = sp->qpair; 710 711 cmd = GET_CMD_SP(sp); 712 713 /* Update entry type to indicate Command Type 3 IOCB */ 714 put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type); 715 716 /* No data transfer */ 717 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 718 cmd_pkt->byte_count = cpu_to_le32(0); 719 return; 720 } 721 722 vha = sp->vha; 723 724 /* Set transfer direction */ 725 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 726 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA); 727 qpair->counters.output_bytes += scsi_bufflen(cmd); 728 qpair->counters.output_requests++; 729 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 730 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA); 731 qpair->counters.input_bytes += scsi_bufflen(cmd); 732 qpair->counters.input_requests++; 733 } 734 735 /* One DSD is available in the Command Type 3 IOCB */ 736 avail_dsds = 1; 737 cur_dsd = &cmd_pkt->dsd; 738 739 /* Load data segments */ 740 741 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 742 cont_a64_entry_t *cont_pkt; 743 744 /* Allocate additional continuation packets? */ 745 if (avail_dsds == 0) { 746 /* 747 * Five DSDs are available in the Continuation 748 * Type 1 IOCB. 749 */ 750 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req); 751 cur_dsd = cont_pkt->dsd; 752 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 753 } 754 755 append_dsd64(&cur_dsd, sg); 756 avail_dsds--; 757 } 758 } 759 760 struct fw_dif_context { 761 __le32 ref_tag; 762 __le16 app_tag; 763 uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ 764 uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ 765 }; 766 767 /* 768 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command 769 * 770 */ 771 static inline void 772 qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, 773 unsigned int protcnt) 774 { 775 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 776 777 pkt->ref_tag = cpu_to_le32(scsi_prot_ref_tag(cmd)); 778 779 if (cmd->prot_flags & SCSI_PROT_REF_CHECK && 780 qla2x00_hba_err_chk_enabled(sp)) { 781 pkt->ref_tag_mask[0] = 0xff; 782 pkt->ref_tag_mask[1] = 0xff; 783 pkt->ref_tag_mask[2] = 0xff; 784 pkt->ref_tag_mask[3] = 0xff; 785 } 786 787 pkt->app_tag = cpu_to_le16(0); 788 pkt->app_tag_mask[0] = 0x0; 789 pkt->app_tag_mask[1] = 0x0; 790 } 791 792 int 793 qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, 794 uint32_t *partial) 795 { 796 struct scatterlist *sg; 797 uint32_t cumulative_partial, sg_len; 798 dma_addr_t sg_dma_addr; 799 800 if (sgx->num_bytes == sgx->tot_bytes) 801 return 0; 802 803 sg = sgx->cur_sg; 804 cumulative_partial = sgx->tot_partial; 805 806 sg_dma_addr = sg_dma_address(sg); 807 sg_len = sg_dma_len(sg); 808 809 sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; 810 811 if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { 812 sgx->dma_len = (blk_sz - cumulative_partial); 813 sgx->tot_partial = 0; 814 sgx->num_bytes += blk_sz; 815 *partial = 0; 816 } else { 817 sgx->dma_len = sg_len - sgx->bytes_consumed; 818 sgx->tot_partial += sgx->dma_len; 819 *partial = 1; 820 } 821 822 sgx->bytes_consumed += sgx->dma_len; 823 824 if (sg_len == sgx->bytes_consumed) { 825 sg = sg_next(sg); 826 sgx->num_sg++; 827 sgx->cur_sg = sg; 828 sgx->bytes_consumed = 0; 829 } 830 831 return 1; 832 } 833 834 int 835 qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, 836 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) 837 { 838 void *next_dsd; 839 uint8_t avail_dsds = 0; 840 uint32_t dsd_list_len; 841 struct dsd_dma *dsd_ptr; 842 struct scatterlist *sg_prot; 843 struct dsd64 *cur_dsd = dsd; 844 uint16_t used_dsds = tot_dsds; 845 uint32_t prot_int; /* protection interval */ 846 uint32_t partial; 847 struct qla2_sgx sgx; 848 dma_addr_t sle_dma; 849 uint32_t sle_dma_len, tot_prot_dma_len = 0; 850 struct scsi_cmnd *cmd; 851 852 memset(&sgx, 0, sizeof(struct qla2_sgx)); 853 if (sp) { 854 cmd = GET_CMD_SP(sp); 855 prot_int = scsi_prot_interval(cmd); 856 857 sgx.tot_bytes = scsi_bufflen(cmd); 858 sgx.cur_sg = scsi_sglist(cmd); 859 sgx.sp = sp; 860 861 sg_prot = scsi_prot_sglist(cmd); 862 } else if (tc) { 863 prot_int = tc->blk_sz; 864 sgx.tot_bytes = tc->bufflen; 865 sgx.cur_sg = tc->sg; 866 sg_prot = tc->prot_sg; 867 } else { 868 BUG(); 869 return 1; 870 } 871 872 while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { 873 874 sle_dma = sgx.dma_addr; 875 sle_dma_len = sgx.dma_len; 876 alloc_and_fill: 877 /* Allocate additional continuation packets? */ 878 if (avail_dsds == 0) { 879 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 880 QLA_DSDS_PER_IOCB : used_dsds; 881 dsd_list_len = (avail_dsds + 1) * 12; 882 used_dsds -= avail_dsds; 883 884 /* allocate tracking DS */ 885 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 886 if (!dsd_ptr) 887 return 1; 888 889 /* allocate new list */ 890 dsd_ptr->dsd_addr = next_dsd = 891 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 892 &dsd_ptr->dsd_list_dma); 893 894 if (!next_dsd) { 895 /* 896 * Need to cleanup only this dsd_ptr, rest 897 * will be done by sp_free_dma() 898 */ 899 kfree(dsd_ptr); 900 return 1; 901 } 902 903 if (sp) { 904 list_add_tail(&dsd_ptr->list, 905 &sp->u.scmd.crc_ctx->dsd_list); 906 907 sp->flags |= SRB_CRC_CTX_DSD_VALID; 908 } else { 909 list_add_tail(&dsd_ptr->list, 910 &(tc->ctx->dsd_list)); 911 *tc->ctx_dsd_alloced = 1; 912 } 913 914 915 /* add new list to cmd iocb or last list */ 916 put_unaligned_le64(dsd_ptr->dsd_list_dma, 917 &cur_dsd->address); 918 cur_dsd->length = cpu_to_le32(dsd_list_len); 919 cur_dsd = next_dsd; 920 } 921 put_unaligned_le64(sle_dma, &cur_dsd->address); 922 cur_dsd->length = cpu_to_le32(sle_dma_len); 923 cur_dsd++; 924 avail_dsds--; 925 926 if (partial == 0) { 927 /* Got a full protection interval */ 928 sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; 929 sle_dma_len = 8; 930 931 tot_prot_dma_len += sle_dma_len; 932 if (tot_prot_dma_len == sg_dma_len(sg_prot)) { 933 tot_prot_dma_len = 0; 934 sg_prot = sg_next(sg_prot); 935 } 936 937 partial = 1; /* So as to not re-enter this block */ 938 goto alloc_and_fill; 939 } 940 } 941 /* Null termination */ 942 cur_dsd->address = 0; 943 cur_dsd->length = 0; 944 cur_dsd++; 945 return 0; 946 } 947 948 int 949 qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, 950 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) 951 { 952 void *next_dsd; 953 uint8_t avail_dsds = 0; 954 uint32_t dsd_list_len; 955 struct dsd_dma *dsd_ptr; 956 struct scatterlist *sg, *sgl; 957 struct dsd64 *cur_dsd = dsd; 958 int i; 959 uint16_t used_dsds = tot_dsds; 960 struct scsi_cmnd *cmd; 961 962 if (sp) { 963 cmd = GET_CMD_SP(sp); 964 sgl = scsi_sglist(cmd); 965 } else if (tc) { 966 sgl = tc->sg; 967 } else { 968 BUG(); 969 return 1; 970 } 971 972 973 for_each_sg(sgl, sg, tot_dsds, i) { 974 /* Allocate additional continuation packets? */ 975 if (avail_dsds == 0) { 976 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 977 QLA_DSDS_PER_IOCB : used_dsds; 978 dsd_list_len = (avail_dsds + 1) * 12; 979 used_dsds -= avail_dsds; 980 981 /* allocate tracking DS */ 982 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 983 if (!dsd_ptr) 984 return 1; 985 986 /* allocate new list */ 987 dsd_ptr->dsd_addr = next_dsd = 988 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 989 &dsd_ptr->dsd_list_dma); 990 991 if (!next_dsd) { 992 /* 993 * Need to cleanup only this dsd_ptr, rest 994 * will be done by sp_free_dma() 995 */ 996 kfree(dsd_ptr); 997 return 1; 998 } 999 1000 if (sp) { 1001 list_add_tail(&dsd_ptr->list, 1002 &sp->u.scmd.crc_ctx->dsd_list); 1003 1004 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1005 } else { 1006 list_add_tail(&dsd_ptr->list, 1007 &(tc->ctx->dsd_list)); 1008 *tc->ctx_dsd_alloced = 1; 1009 } 1010 1011 /* add new list to cmd iocb or last list */ 1012 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1013 &cur_dsd->address); 1014 cur_dsd->length = cpu_to_le32(dsd_list_len); 1015 cur_dsd = next_dsd; 1016 } 1017 append_dsd64(&cur_dsd, sg); 1018 avail_dsds--; 1019 1020 } 1021 /* Null termination */ 1022 cur_dsd->address = 0; 1023 cur_dsd->length = 0; 1024 cur_dsd++; 1025 return 0; 1026 } 1027 1028 int 1029 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, 1030 struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc) 1031 { 1032 struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd; 1033 struct scatterlist *sg, *sgl; 1034 struct crc_context *difctx = NULL; 1035 struct scsi_qla_host *vha; 1036 uint dsd_list_len; 1037 uint avail_dsds = 0; 1038 uint used_dsds = tot_dsds; 1039 bool dif_local_dma_alloc = false; 1040 bool direction_to_device = false; 1041 int i; 1042 1043 if (sp) { 1044 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1045 1046 sgl = scsi_prot_sglist(cmd); 1047 vha = sp->vha; 1048 difctx = sp->u.scmd.crc_ctx; 1049 direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE; 1050 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021, 1051 "%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n", 1052 __func__, cmd, difctx, sp); 1053 } else if (tc) { 1054 vha = tc->vha; 1055 sgl = tc->prot_sg; 1056 difctx = tc->ctx; 1057 direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE; 1058 } else { 1059 BUG(); 1060 return 1; 1061 } 1062 1063 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021, 1064 "%s: enter (write=%u)\n", __func__, direction_to_device); 1065 1066 /* if initiator doing write or target doing read */ 1067 if (direction_to_device) { 1068 for_each_sg(sgl, sg, tot_dsds, i) { 1069 u64 sle_phys = sg_phys(sg); 1070 1071 /* If SGE addr + len flips bits in upper 32-bits */ 1072 if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) { 1073 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022, 1074 "%s: page boundary crossing (phys=%llx len=%x)\n", 1075 __func__, sle_phys, sg->length); 1076 1077 if (difctx) { 1078 ha->dif_bundle_crossed_pages++; 1079 dif_local_dma_alloc = true; 1080 } else { 1081 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, 1082 vha, 0xe022, 1083 "%s: difctx pointer is NULL\n", 1084 __func__); 1085 } 1086 break; 1087 } 1088 } 1089 ha->dif_bundle_writes++; 1090 } else { 1091 ha->dif_bundle_reads++; 1092 } 1093 1094 if (ql2xdifbundlinginternalbuffers) 1095 dif_local_dma_alloc = direction_to_device; 1096 1097 if (dif_local_dma_alloc) { 1098 u32 track_difbundl_buf = 0; 1099 u32 ldma_sg_len = 0; 1100 u8 ldma_needed = 1; 1101 1102 difctx->no_dif_bundl = 0; 1103 difctx->dif_bundl_len = 0; 1104 1105 /* Track DSD buffers */ 1106 INIT_LIST_HEAD(&difctx->ldif_dsd_list); 1107 /* Track local DMA buffers */ 1108 INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list); 1109 1110 for_each_sg(sgl, sg, tot_dsds, i) { 1111 u32 sglen = sg_dma_len(sg); 1112 1113 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023, 1114 "%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n", 1115 __func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len, 1116 difctx->dif_bundl_len, ldma_needed); 1117 1118 while (sglen) { 1119 u32 xfrlen = 0; 1120 1121 if (ldma_needed) { 1122 /* 1123 * Allocate list item to store 1124 * the DMA buffers 1125 */ 1126 dsd_ptr = kzalloc(sizeof(*dsd_ptr), 1127 GFP_ATOMIC); 1128 if (!dsd_ptr) { 1129 ql_dbg(ql_dbg_tgt, vha, 0xe024, 1130 "%s: failed alloc dsd_ptr\n", 1131 __func__); 1132 return 1; 1133 } 1134 ha->dif_bundle_kallocs++; 1135 1136 /* allocate dma buffer */ 1137 dsd_ptr->dsd_addr = dma_pool_alloc 1138 (ha->dif_bundl_pool, GFP_ATOMIC, 1139 &dsd_ptr->dsd_list_dma); 1140 if (!dsd_ptr->dsd_addr) { 1141 ql_dbg(ql_dbg_tgt, vha, 0xe024, 1142 "%s: failed alloc ->dsd_ptr\n", 1143 __func__); 1144 /* 1145 * need to cleanup only this 1146 * dsd_ptr rest will be done 1147 * by sp_free_dma() 1148 */ 1149 kfree(dsd_ptr); 1150 ha->dif_bundle_kallocs--; 1151 return 1; 1152 } 1153 ha->dif_bundle_dma_allocs++; 1154 ldma_needed = 0; 1155 difctx->no_dif_bundl++; 1156 list_add_tail(&dsd_ptr->list, 1157 &difctx->ldif_dma_hndl_list); 1158 } 1159 1160 /* xfrlen is min of dma pool size and sglen */ 1161 xfrlen = (sglen > 1162 (DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ? 1163 DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len : 1164 sglen; 1165 1166 /* replace with local allocated dma buffer */ 1167 sg_pcopy_to_buffer(sgl, sg_nents(sgl), 1168 dsd_ptr->dsd_addr + ldma_sg_len, xfrlen, 1169 difctx->dif_bundl_len); 1170 difctx->dif_bundl_len += xfrlen; 1171 sglen -= xfrlen; 1172 ldma_sg_len += xfrlen; 1173 if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE || 1174 sg_is_last(sg)) { 1175 ldma_needed = 1; 1176 ldma_sg_len = 0; 1177 } 1178 } 1179 } 1180 1181 track_difbundl_buf = used_dsds = difctx->no_dif_bundl; 1182 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025, 1183 "dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n", 1184 difctx->dif_bundl_len, difctx->no_dif_bundl, 1185 track_difbundl_buf); 1186 1187 if (sp) 1188 sp->flags |= SRB_DIF_BUNDL_DMA_VALID; 1189 else 1190 tc->prot_flags = DIF_BUNDL_DMA_VALID; 1191 1192 list_for_each_entry_safe(dif_dsd, nxt_dsd, 1193 &difctx->ldif_dma_hndl_list, list) { 1194 u32 sglen = (difctx->dif_bundl_len > 1195 DIF_BUNDLING_DMA_POOL_SIZE) ? 1196 DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len; 1197 1198 BUG_ON(track_difbundl_buf == 0); 1199 1200 /* Allocate additional continuation packets? */ 1201 if (avail_dsds == 0) { 1202 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 1203 0xe024, 1204 "%s: adding continuation iocb's\n", 1205 __func__); 1206 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1207 QLA_DSDS_PER_IOCB : used_dsds; 1208 dsd_list_len = (avail_dsds + 1) * 12; 1209 used_dsds -= avail_dsds; 1210 1211 /* allocate tracking DS */ 1212 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); 1213 if (!dsd_ptr) { 1214 ql_dbg(ql_dbg_tgt, vha, 0xe026, 1215 "%s: failed alloc dsd_ptr\n", 1216 __func__); 1217 return 1; 1218 } 1219 ha->dif_bundle_kallocs++; 1220 1221 difctx->no_ldif_dsd++; 1222 /* allocate new list */ 1223 dsd_ptr->dsd_addr = 1224 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1225 &dsd_ptr->dsd_list_dma); 1226 if (!dsd_ptr->dsd_addr) { 1227 ql_dbg(ql_dbg_tgt, vha, 0xe026, 1228 "%s: failed alloc ->dsd_addr\n", 1229 __func__); 1230 /* 1231 * need to cleanup only this dsd_ptr 1232 * rest will be done by sp_free_dma() 1233 */ 1234 kfree(dsd_ptr); 1235 ha->dif_bundle_kallocs--; 1236 return 1; 1237 } 1238 ha->dif_bundle_dma_allocs++; 1239 1240 if (sp) { 1241 list_add_tail(&dsd_ptr->list, 1242 &difctx->ldif_dsd_list); 1243 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1244 } else { 1245 list_add_tail(&dsd_ptr->list, 1246 &difctx->ldif_dsd_list); 1247 tc->ctx_dsd_alloced = 1; 1248 } 1249 1250 /* add new list to cmd iocb or last list */ 1251 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1252 &cur_dsd->address); 1253 cur_dsd->length = cpu_to_le32(dsd_list_len); 1254 cur_dsd = dsd_ptr->dsd_addr; 1255 } 1256 put_unaligned_le64(dif_dsd->dsd_list_dma, 1257 &cur_dsd->address); 1258 cur_dsd->length = cpu_to_le32(sglen); 1259 cur_dsd++; 1260 avail_dsds--; 1261 difctx->dif_bundl_len -= sglen; 1262 track_difbundl_buf--; 1263 } 1264 1265 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026, 1266 "%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__, 1267 difctx->no_ldif_dsd, difctx->no_dif_bundl); 1268 } else { 1269 for_each_sg(sgl, sg, tot_dsds, i) { 1270 /* Allocate additional continuation packets? */ 1271 if (avail_dsds == 0) { 1272 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1273 QLA_DSDS_PER_IOCB : used_dsds; 1274 dsd_list_len = (avail_dsds + 1) * 12; 1275 used_dsds -= avail_dsds; 1276 1277 /* allocate tracking DS */ 1278 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); 1279 if (!dsd_ptr) { 1280 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, 1281 vha, 0xe027, 1282 "%s: failed alloc dsd_dma...\n", 1283 __func__); 1284 return 1; 1285 } 1286 1287 /* allocate new list */ 1288 dsd_ptr->dsd_addr = 1289 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1290 &dsd_ptr->dsd_list_dma); 1291 if (!dsd_ptr->dsd_addr) { 1292 /* need to cleanup only this dsd_ptr */ 1293 /* rest will be done by sp_free_dma() */ 1294 kfree(dsd_ptr); 1295 return 1; 1296 } 1297 1298 if (sp) { 1299 list_add_tail(&dsd_ptr->list, 1300 &difctx->dsd_list); 1301 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1302 } else { 1303 list_add_tail(&dsd_ptr->list, 1304 &difctx->dsd_list); 1305 tc->ctx_dsd_alloced = 1; 1306 } 1307 1308 /* add new list to cmd iocb or last list */ 1309 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1310 &cur_dsd->address); 1311 cur_dsd->length = cpu_to_le32(dsd_list_len); 1312 cur_dsd = dsd_ptr->dsd_addr; 1313 } 1314 append_dsd64(&cur_dsd, sg); 1315 avail_dsds--; 1316 } 1317 } 1318 /* Null termination */ 1319 cur_dsd->address = 0; 1320 cur_dsd->length = 0; 1321 cur_dsd++; 1322 return 0; 1323 } 1324 1325 /** 1326 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command 1327 * Type 6 IOCB types. 1328 * 1329 * @sp: SRB command to process 1330 * @cmd_pkt: Command type 3 IOCB 1331 * @tot_dsds: Total number of segments to transfer 1332 * @tot_prot_dsds: Total number of segments with protection information 1333 * @fw_prot_opts: Protection options to be passed to firmware 1334 */ 1335 static inline int 1336 qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, 1337 uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) 1338 { 1339 struct dsd64 *cur_dsd; 1340 __be32 *fcp_dl; 1341 scsi_qla_host_t *vha; 1342 struct scsi_cmnd *cmd; 1343 uint32_t total_bytes = 0; 1344 uint32_t data_bytes; 1345 uint32_t dif_bytes; 1346 uint8_t bundling = 1; 1347 uint16_t blk_size; 1348 struct crc_context *crc_ctx_pkt = NULL; 1349 struct qla_hw_data *ha; 1350 uint8_t additional_fcpcdb_len; 1351 uint16_t fcp_cmnd_len; 1352 struct fcp_cmnd *fcp_cmnd; 1353 dma_addr_t crc_ctx_dma; 1354 1355 cmd = GET_CMD_SP(sp); 1356 1357 /* Update entry type to indicate Command Type CRC_2 IOCB */ 1358 put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type); 1359 1360 vha = sp->vha; 1361 ha = vha->hw; 1362 1363 /* No data transfer */ 1364 data_bytes = scsi_bufflen(cmd); 1365 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { 1366 cmd_pkt->byte_count = cpu_to_le32(0); 1367 return QLA_SUCCESS; 1368 } 1369 1370 cmd_pkt->vp_index = sp->vha->vp_idx; 1371 1372 /* Set transfer direction */ 1373 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 1374 cmd_pkt->control_flags = 1375 cpu_to_le16(CF_WRITE_DATA); 1376 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 1377 cmd_pkt->control_flags = 1378 cpu_to_le16(CF_READ_DATA); 1379 } 1380 1381 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1382 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || 1383 (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || 1384 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) 1385 bundling = 0; 1386 1387 /* Allocate CRC context from global pool */ 1388 crc_ctx_pkt = sp->u.scmd.crc_ctx = 1389 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); 1390 1391 if (!crc_ctx_pkt) 1392 goto crc_queuing_error; 1393 1394 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; 1395 1396 sp->flags |= SRB_CRC_CTX_DMA_VALID; 1397 1398 /* Set handle */ 1399 crc_ctx_pkt->handle = cmd_pkt->handle; 1400 1401 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); 1402 1403 qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) 1404 &crc_ctx_pkt->ref_tag, tot_prot_dsds); 1405 1406 put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address); 1407 cmd_pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW); 1408 1409 /* Determine SCSI command length -- align to 4 byte boundary */ 1410 if (cmd->cmd_len > 16) { 1411 additional_fcpcdb_len = cmd->cmd_len - 16; 1412 if ((cmd->cmd_len % 4) != 0) { 1413 /* SCSI cmd > 16 bytes must be multiple of 4 */ 1414 goto crc_queuing_error; 1415 } 1416 fcp_cmnd_len = 12 + cmd->cmd_len + 4; 1417 } else { 1418 additional_fcpcdb_len = 0; 1419 fcp_cmnd_len = 12 + 16 + 4; 1420 } 1421 1422 fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; 1423 1424 fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; 1425 if (cmd->sc_data_direction == DMA_TO_DEVICE) 1426 fcp_cmnd->additional_cdb_len |= 1; 1427 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 1428 fcp_cmnd->additional_cdb_len |= 2; 1429 1430 int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); 1431 memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 1432 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); 1433 put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF, 1434 &cmd_pkt->fcp_cmnd_dseg_address); 1435 fcp_cmnd->task_management = 0; 1436 fcp_cmnd->task_attribute = TSK_SIMPLE; 1437 1438 cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ 1439 1440 /* Compute dif len and adjust data len to incude protection */ 1441 dif_bytes = 0; 1442 blk_size = cmd->device->sector_size; 1443 dif_bytes = (data_bytes / blk_size) * 8; 1444 1445 switch (scsi_get_prot_op(GET_CMD_SP(sp))) { 1446 case SCSI_PROT_READ_INSERT: 1447 case SCSI_PROT_WRITE_STRIP: 1448 total_bytes = data_bytes; 1449 data_bytes += dif_bytes; 1450 break; 1451 1452 case SCSI_PROT_READ_STRIP: 1453 case SCSI_PROT_WRITE_INSERT: 1454 case SCSI_PROT_READ_PASS: 1455 case SCSI_PROT_WRITE_PASS: 1456 total_bytes = data_bytes + dif_bytes; 1457 break; 1458 default: 1459 BUG(); 1460 } 1461 1462 if (!qla2x00_hba_err_chk_enabled(sp)) 1463 fw_prot_opts |= 0x10; /* Disable Guard tag checking */ 1464 /* HBA error checking enabled */ 1465 else if (IS_PI_UNINIT_CAPABLE(ha)) { 1466 if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) 1467 || (scsi_get_prot_type(GET_CMD_SP(sp)) == 1468 SCSI_PROT_DIF_TYPE2)) 1469 fw_prot_opts |= BIT_10; 1470 else if (scsi_get_prot_type(GET_CMD_SP(sp)) == 1471 SCSI_PROT_DIF_TYPE3) 1472 fw_prot_opts |= BIT_11; 1473 } 1474 1475 if (!bundling) { 1476 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0]; 1477 } else { 1478 /* 1479 * Configure Bundling if we need to fetch interlaving 1480 * protection PCI accesses 1481 */ 1482 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; 1483 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); 1484 crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - 1485 tot_prot_dsds); 1486 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0]; 1487 } 1488 1489 /* Finish the common fields of CRC pkt */ 1490 crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); 1491 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); 1492 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); 1493 crc_ctx_pkt->guard_seed = cpu_to_le16(0); 1494 /* Fibre channel byte count */ 1495 cmd_pkt->byte_count = cpu_to_le32(total_bytes); 1496 fcp_dl = (__be32 *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + 1497 additional_fcpcdb_len); 1498 *fcp_dl = htonl(total_bytes); 1499 1500 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { 1501 cmd_pkt->byte_count = cpu_to_le32(0); 1502 return QLA_SUCCESS; 1503 } 1504 /* Walks data segments */ 1505 1506 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); 1507 1508 if (!bundling && tot_prot_dsds) { 1509 if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, 1510 cur_dsd, tot_dsds, NULL)) 1511 goto crc_queuing_error; 1512 } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, 1513 (tot_dsds - tot_prot_dsds), NULL)) 1514 goto crc_queuing_error; 1515 1516 if (bundling && tot_prot_dsds) { 1517 /* Walks dif segments */ 1518 cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); 1519 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd; 1520 if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, 1521 tot_prot_dsds, NULL)) 1522 goto crc_queuing_error; 1523 } 1524 return QLA_SUCCESS; 1525 1526 crc_queuing_error: 1527 /* Cleanup will be performed by the caller */ 1528 1529 return QLA_FUNCTION_FAILED; 1530 } 1531 1532 /** 1533 * qla24xx_start_scsi() - Send a SCSI command to the ISP 1534 * @sp: command to send to the ISP 1535 * 1536 * Returns non-zero if a failure occurred, else zero. 1537 */ 1538 int 1539 qla24xx_start_scsi(srb_t *sp) 1540 { 1541 int nseg; 1542 unsigned long flags; 1543 uint32_t *clr_ptr; 1544 uint32_t handle; 1545 struct cmd_type_7 *cmd_pkt; 1546 uint16_t cnt; 1547 uint16_t req_cnt; 1548 uint16_t tot_dsds; 1549 struct req_que *req = NULL; 1550 struct rsp_que *rsp; 1551 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1552 struct scsi_qla_host *vha = sp->vha; 1553 struct qla_hw_data *ha = vha->hw; 1554 1555 /* Setup device pointers. */ 1556 req = vha->req; 1557 rsp = req->rsp; 1558 1559 /* So we know we haven't pci_map'ed anything yet */ 1560 tot_dsds = 0; 1561 1562 /* Send marker if required */ 1563 if (vha->marker_needed != 0) { 1564 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 1565 QLA_SUCCESS) 1566 return QLA_FUNCTION_FAILED; 1567 vha->marker_needed = 0; 1568 } 1569 1570 /* Acquire ring specific lock */ 1571 spin_lock_irqsave(&ha->hardware_lock, flags); 1572 1573 handle = qla2xxx_get_next_handle(req); 1574 if (handle == 0) 1575 goto queuing_error; 1576 1577 /* Map the sg table so we have an accurate count of sg entries needed */ 1578 if (scsi_sg_count(cmd)) { 1579 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1580 scsi_sg_count(cmd), cmd->sc_data_direction); 1581 if (unlikely(!nseg)) 1582 goto queuing_error; 1583 } else 1584 nseg = 0; 1585 1586 tot_dsds = nseg; 1587 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1588 1589 sp->iores.res_type = RESOURCE_INI; 1590 sp->iores.iocb_cnt = req_cnt; 1591 if (qla_get_iocbs(sp->qpair, &sp->iores)) 1592 goto queuing_error; 1593 1594 if (req->cnt < (req_cnt + 2)) { 1595 if (IS_SHADOW_REG_CAPABLE(ha)) { 1596 cnt = *req->out_ptr; 1597 } else { 1598 cnt = rd_reg_dword_relaxed(req->req_q_out); 1599 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1600 goto queuing_error; 1601 } 1602 1603 if (req->ring_index < cnt) 1604 req->cnt = cnt - req->ring_index; 1605 else 1606 req->cnt = req->length - 1607 (req->ring_index - cnt); 1608 if (req->cnt < (req_cnt + 2)) 1609 goto queuing_error; 1610 } 1611 1612 /* Build command packet. */ 1613 req->current_outstanding_cmd = handle; 1614 req->outstanding_cmds[handle] = sp; 1615 sp->handle = handle; 1616 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1617 req->cnt -= req_cnt; 1618 1619 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1620 cmd_pkt->handle = make_handle(req->id, handle); 1621 1622 /* Zero out remaining portion of packet. */ 1623 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1624 clr_ptr = (uint32_t *)cmd_pkt + 2; 1625 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1626 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1627 1628 /* Set NPORT-ID and LUN number*/ 1629 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1630 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1631 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1632 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1633 cmd_pkt->vp_index = sp->vha->vp_idx; 1634 1635 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1636 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1637 1638 cmd_pkt->task = TSK_SIMPLE; 1639 1640 /* Load SCSI command packet. */ 1641 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 1642 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 1643 1644 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 1645 1646 /* Build IOCB segments */ 1647 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 1648 1649 /* Set total data segment count. */ 1650 cmd_pkt->entry_count = (uint8_t)req_cnt; 1651 wmb(); 1652 /* Adjust ring index. */ 1653 req->ring_index++; 1654 if (req->ring_index == req->length) { 1655 req->ring_index = 0; 1656 req->ring_ptr = req->ring; 1657 } else 1658 req->ring_ptr++; 1659 1660 sp->qpair->cmd_cnt++; 1661 sp->flags |= SRB_DMA_VALID; 1662 1663 /* Set chip new ring index. */ 1664 wrt_reg_dword(req->req_q_in, req->ring_index); 1665 1666 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1667 if (vha->flags.process_response_queue && 1668 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1669 qla24xx_process_response_queue(vha, rsp); 1670 1671 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1672 return QLA_SUCCESS; 1673 1674 queuing_error: 1675 if (tot_dsds) 1676 scsi_dma_unmap(cmd); 1677 1678 qla_put_iocbs(sp->qpair, &sp->iores); 1679 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1680 1681 return QLA_FUNCTION_FAILED; 1682 } 1683 1684 /** 1685 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP 1686 * @sp: command to send to the ISP 1687 * 1688 * Returns non-zero if a failure occurred, else zero. 1689 */ 1690 int 1691 qla24xx_dif_start_scsi(srb_t *sp) 1692 { 1693 int nseg; 1694 unsigned long flags; 1695 uint32_t *clr_ptr; 1696 uint32_t handle; 1697 uint16_t cnt; 1698 uint16_t req_cnt = 0; 1699 uint16_t tot_dsds; 1700 uint16_t tot_prot_dsds; 1701 uint16_t fw_prot_opts = 0; 1702 struct req_que *req = NULL; 1703 struct rsp_que *rsp = NULL; 1704 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1705 struct scsi_qla_host *vha = sp->vha; 1706 struct qla_hw_data *ha = vha->hw; 1707 struct cmd_type_crc_2 *cmd_pkt; 1708 uint32_t status = 0; 1709 1710 #define QDSS_GOT_Q_SPACE BIT_0 1711 1712 /* Only process protection or >16 cdb in this routine */ 1713 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 1714 if (cmd->cmd_len <= 16) 1715 return qla24xx_start_scsi(sp); 1716 } 1717 1718 /* Setup device pointers. */ 1719 req = vha->req; 1720 rsp = req->rsp; 1721 1722 /* So we know we haven't pci_map'ed anything yet */ 1723 tot_dsds = 0; 1724 1725 /* Send marker if required */ 1726 if (vha->marker_needed != 0) { 1727 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 1728 QLA_SUCCESS) 1729 return QLA_FUNCTION_FAILED; 1730 vha->marker_needed = 0; 1731 } 1732 1733 /* Acquire ring specific lock */ 1734 spin_lock_irqsave(&ha->hardware_lock, flags); 1735 1736 handle = qla2xxx_get_next_handle(req); 1737 if (handle == 0) 1738 goto queuing_error; 1739 1740 /* Compute number of required data segments */ 1741 /* Map the sg table so we have an accurate count of sg entries needed */ 1742 if (scsi_sg_count(cmd)) { 1743 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1744 scsi_sg_count(cmd), cmd->sc_data_direction); 1745 if (unlikely(!nseg)) 1746 goto queuing_error; 1747 else 1748 sp->flags |= SRB_DMA_VALID; 1749 1750 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1751 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1752 struct qla2_sgx sgx; 1753 uint32_t partial; 1754 1755 memset(&sgx, 0, sizeof(struct qla2_sgx)); 1756 sgx.tot_bytes = scsi_bufflen(cmd); 1757 sgx.cur_sg = scsi_sglist(cmd); 1758 sgx.sp = sp; 1759 1760 nseg = 0; 1761 while (qla24xx_get_one_block_sg( 1762 cmd->device->sector_size, &sgx, &partial)) 1763 nseg++; 1764 } 1765 } else 1766 nseg = 0; 1767 1768 /* number of required data segments */ 1769 tot_dsds = nseg; 1770 1771 /* Compute number of required protection segments */ 1772 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 1773 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 1774 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 1775 if (unlikely(!nseg)) 1776 goto queuing_error; 1777 else 1778 sp->flags |= SRB_CRC_PROT_DMA_VALID; 1779 1780 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1781 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1782 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 1783 } 1784 } else { 1785 nseg = 0; 1786 } 1787 1788 req_cnt = 1; 1789 /* Total Data and protection sg segment(s) */ 1790 tot_prot_dsds = nseg; 1791 tot_dsds += nseg; 1792 1793 sp->iores.res_type = RESOURCE_INI; 1794 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1795 if (qla_get_iocbs(sp->qpair, &sp->iores)) 1796 goto queuing_error; 1797 1798 if (req->cnt < (req_cnt + 2)) { 1799 if (IS_SHADOW_REG_CAPABLE(ha)) { 1800 cnt = *req->out_ptr; 1801 } else { 1802 cnt = rd_reg_dword_relaxed(req->req_q_out); 1803 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1804 goto queuing_error; 1805 } 1806 if (req->ring_index < cnt) 1807 req->cnt = cnt - req->ring_index; 1808 else 1809 req->cnt = req->length - 1810 (req->ring_index - cnt); 1811 if (req->cnt < (req_cnt + 2)) 1812 goto queuing_error; 1813 } 1814 1815 status |= QDSS_GOT_Q_SPACE; 1816 1817 /* Build header part of command packet (excluding the OPCODE). */ 1818 req->current_outstanding_cmd = handle; 1819 req->outstanding_cmds[handle] = sp; 1820 sp->handle = handle; 1821 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1822 req->cnt -= req_cnt; 1823 1824 /* Fill-in common area */ 1825 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 1826 cmd_pkt->handle = make_handle(req->id, handle); 1827 1828 clr_ptr = (uint32_t *)cmd_pkt + 2; 1829 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1830 1831 /* Set NPORT-ID and LUN number*/ 1832 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1833 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1834 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1835 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1836 1837 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1838 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1839 1840 /* Total Data and protection segment(s) */ 1841 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1842 1843 /* Build IOCB segments and adjust for data protection segments */ 1844 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 1845 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 1846 QLA_SUCCESS) 1847 goto queuing_error; 1848 1849 cmd_pkt->entry_count = (uint8_t)req_cnt; 1850 /* Specify response queue number where completion should happen */ 1851 cmd_pkt->entry_status = (uint8_t) rsp->id; 1852 cmd_pkt->timeout = cpu_to_le16(0); 1853 wmb(); 1854 1855 /* Adjust ring index. */ 1856 req->ring_index++; 1857 if (req->ring_index == req->length) { 1858 req->ring_index = 0; 1859 req->ring_ptr = req->ring; 1860 } else 1861 req->ring_ptr++; 1862 1863 sp->qpair->cmd_cnt++; 1864 /* Set chip new ring index. */ 1865 wrt_reg_dword(req->req_q_in, req->ring_index); 1866 1867 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1868 if (vha->flags.process_response_queue && 1869 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1870 qla24xx_process_response_queue(vha, rsp); 1871 1872 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1873 1874 return QLA_SUCCESS; 1875 1876 queuing_error: 1877 if (status & QDSS_GOT_Q_SPACE) { 1878 req->outstanding_cmds[handle] = NULL; 1879 req->cnt += req_cnt; 1880 } 1881 /* Cleanup will be performed by the caller (queuecommand) */ 1882 1883 qla_put_iocbs(sp->qpair, &sp->iores); 1884 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1885 1886 return QLA_FUNCTION_FAILED; 1887 } 1888 1889 /** 1890 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP 1891 * @sp: command to send to the ISP 1892 * 1893 * Returns non-zero if a failure occurred, else zero. 1894 */ 1895 static int 1896 qla2xxx_start_scsi_mq(srb_t *sp) 1897 { 1898 int nseg; 1899 unsigned long flags; 1900 uint32_t *clr_ptr; 1901 uint32_t handle; 1902 struct cmd_type_7 *cmd_pkt; 1903 uint16_t cnt; 1904 uint16_t req_cnt; 1905 uint16_t tot_dsds; 1906 struct req_que *req = NULL; 1907 struct rsp_que *rsp; 1908 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1909 struct scsi_qla_host *vha = sp->fcport->vha; 1910 struct qla_hw_data *ha = vha->hw; 1911 struct qla_qpair *qpair = sp->qpair; 1912 1913 if (sp->fcport->edif.enable) 1914 return qla28xx_start_scsi_edif(sp); 1915 1916 /* Acquire qpair specific lock */ 1917 spin_lock_irqsave(&qpair->qp_lock, flags); 1918 1919 /* Setup qpair pointers */ 1920 req = qpair->req; 1921 rsp = qpair->rsp; 1922 1923 /* So we know we haven't pci_map'ed anything yet */ 1924 tot_dsds = 0; 1925 1926 /* Send marker if required */ 1927 if (vha->marker_needed != 0) { 1928 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != 1929 QLA_SUCCESS) { 1930 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1931 return QLA_FUNCTION_FAILED; 1932 } 1933 vha->marker_needed = 0; 1934 } 1935 1936 handle = qla2xxx_get_next_handle(req); 1937 if (handle == 0) 1938 goto queuing_error; 1939 1940 /* Map the sg table so we have an accurate count of sg entries needed */ 1941 if (scsi_sg_count(cmd)) { 1942 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1943 scsi_sg_count(cmd), cmd->sc_data_direction); 1944 if (unlikely(!nseg)) 1945 goto queuing_error; 1946 } else 1947 nseg = 0; 1948 1949 tot_dsds = nseg; 1950 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1951 1952 sp->iores.res_type = RESOURCE_INI; 1953 sp->iores.iocb_cnt = req_cnt; 1954 if (qla_get_iocbs(sp->qpair, &sp->iores)) 1955 goto queuing_error; 1956 1957 if (req->cnt < (req_cnt + 2)) { 1958 if (IS_SHADOW_REG_CAPABLE(ha)) { 1959 cnt = *req->out_ptr; 1960 } else { 1961 cnt = rd_reg_dword_relaxed(req->req_q_out); 1962 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1963 goto queuing_error; 1964 } 1965 1966 if (req->ring_index < cnt) 1967 req->cnt = cnt - req->ring_index; 1968 else 1969 req->cnt = req->length - 1970 (req->ring_index - cnt); 1971 if (req->cnt < (req_cnt + 2)) 1972 goto queuing_error; 1973 } 1974 1975 /* Build command packet. */ 1976 req->current_outstanding_cmd = handle; 1977 req->outstanding_cmds[handle] = sp; 1978 sp->handle = handle; 1979 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1980 req->cnt -= req_cnt; 1981 1982 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1983 cmd_pkt->handle = make_handle(req->id, handle); 1984 1985 /* Zero out remaining portion of packet. */ 1986 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1987 clr_ptr = (uint32_t *)cmd_pkt + 2; 1988 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1989 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1990 1991 /* Set NPORT-ID and LUN number*/ 1992 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1993 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1994 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1995 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1996 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 1997 1998 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1999 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2000 2001 cmd_pkt->task = TSK_SIMPLE; 2002 2003 /* Load SCSI command packet. */ 2004 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 2005 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 2006 2007 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 2008 2009 /* Build IOCB segments */ 2010 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 2011 2012 /* Set total data segment count. */ 2013 cmd_pkt->entry_count = (uint8_t)req_cnt; 2014 wmb(); 2015 /* Adjust ring index. */ 2016 req->ring_index++; 2017 if (req->ring_index == req->length) { 2018 req->ring_index = 0; 2019 req->ring_ptr = req->ring; 2020 } else 2021 req->ring_ptr++; 2022 2023 sp->qpair->cmd_cnt++; 2024 sp->flags |= SRB_DMA_VALID; 2025 2026 /* Set chip new ring index. */ 2027 wrt_reg_dword(req->req_q_in, req->ring_index); 2028 2029 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2030 if (vha->flags.process_response_queue && 2031 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2032 qla24xx_process_response_queue(vha, rsp); 2033 2034 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2035 return QLA_SUCCESS; 2036 2037 queuing_error: 2038 if (tot_dsds) 2039 scsi_dma_unmap(cmd); 2040 2041 qla_put_iocbs(sp->qpair, &sp->iores); 2042 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2043 2044 return QLA_FUNCTION_FAILED; 2045 } 2046 2047 2048 /** 2049 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP 2050 * @sp: command to send to the ISP 2051 * 2052 * Returns non-zero if a failure occurred, else zero. 2053 */ 2054 int 2055 qla2xxx_dif_start_scsi_mq(srb_t *sp) 2056 { 2057 int nseg; 2058 unsigned long flags; 2059 uint32_t *clr_ptr; 2060 uint32_t handle; 2061 uint16_t cnt; 2062 uint16_t req_cnt = 0; 2063 uint16_t tot_dsds; 2064 uint16_t tot_prot_dsds; 2065 uint16_t fw_prot_opts = 0; 2066 struct req_que *req = NULL; 2067 struct rsp_que *rsp = NULL; 2068 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 2069 struct scsi_qla_host *vha = sp->fcport->vha; 2070 struct qla_hw_data *ha = vha->hw; 2071 struct cmd_type_crc_2 *cmd_pkt; 2072 uint32_t status = 0; 2073 struct qla_qpair *qpair = sp->qpair; 2074 2075 #define QDSS_GOT_Q_SPACE BIT_0 2076 2077 /* Check for host side state */ 2078 if (!qpair->online) { 2079 cmd->result = DID_NO_CONNECT << 16; 2080 return QLA_INTERFACE_ERROR; 2081 } 2082 2083 if (!qpair->difdix_supported && 2084 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { 2085 cmd->result = DID_NO_CONNECT << 16; 2086 return QLA_INTERFACE_ERROR; 2087 } 2088 2089 /* Only process protection or >16 cdb in this routine */ 2090 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 2091 if (cmd->cmd_len <= 16) 2092 return qla2xxx_start_scsi_mq(sp); 2093 } 2094 2095 spin_lock_irqsave(&qpair->qp_lock, flags); 2096 2097 /* Setup qpair pointers */ 2098 rsp = qpair->rsp; 2099 req = qpair->req; 2100 2101 /* So we know we haven't pci_map'ed anything yet */ 2102 tot_dsds = 0; 2103 2104 /* Send marker if required */ 2105 if (vha->marker_needed != 0) { 2106 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != 2107 QLA_SUCCESS) { 2108 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2109 return QLA_FUNCTION_FAILED; 2110 } 2111 vha->marker_needed = 0; 2112 } 2113 2114 handle = qla2xxx_get_next_handle(req); 2115 if (handle == 0) 2116 goto queuing_error; 2117 2118 /* Compute number of required data segments */ 2119 /* Map the sg table so we have an accurate count of sg entries needed */ 2120 if (scsi_sg_count(cmd)) { 2121 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 2122 scsi_sg_count(cmd), cmd->sc_data_direction); 2123 if (unlikely(!nseg)) 2124 goto queuing_error; 2125 else 2126 sp->flags |= SRB_DMA_VALID; 2127 2128 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2129 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2130 struct qla2_sgx sgx; 2131 uint32_t partial; 2132 2133 memset(&sgx, 0, sizeof(struct qla2_sgx)); 2134 sgx.tot_bytes = scsi_bufflen(cmd); 2135 sgx.cur_sg = scsi_sglist(cmd); 2136 sgx.sp = sp; 2137 2138 nseg = 0; 2139 while (qla24xx_get_one_block_sg( 2140 cmd->device->sector_size, &sgx, &partial)) 2141 nseg++; 2142 } 2143 } else 2144 nseg = 0; 2145 2146 /* number of required data segments */ 2147 tot_dsds = nseg; 2148 2149 /* Compute number of required protection segments */ 2150 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 2151 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 2152 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 2153 if (unlikely(!nseg)) 2154 goto queuing_error; 2155 else 2156 sp->flags |= SRB_CRC_PROT_DMA_VALID; 2157 2158 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2159 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2160 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 2161 } 2162 } else { 2163 nseg = 0; 2164 } 2165 2166 req_cnt = 1; 2167 /* Total Data and protection sg segment(s) */ 2168 tot_prot_dsds = nseg; 2169 tot_dsds += nseg; 2170 2171 sp->iores.res_type = RESOURCE_INI; 2172 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 2173 if (qla_get_iocbs(sp->qpair, &sp->iores)) 2174 goto queuing_error; 2175 2176 if (req->cnt < (req_cnt + 2)) { 2177 if (IS_SHADOW_REG_CAPABLE(ha)) { 2178 cnt = *req->out_ptr; 2179 } else { 2180 cnt = rd_reg_dword_relaxed(req->req_q_out); 2181 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 2182 goto queuing_error; 2183 } 2184 2185 if (req->ring_index < cnt) 2186 req->cnt = cnt - req->ring_index; 2187 else 2188 req->cnt = req->length - 2189 (req->ring_index - cnt); 2190 if (req->cnt < (req_cnt + 2)) 2191 goto queuing_error; 2192 } 2193 2194 status |= QDSS_GOT_Q_SPACE; 2195 2196 /* Build header part of command packet (excluding the OPCODE). */ 2197 req->current_outstanding_cmd = handle; 2198 req->outstanding_cmds[handle] = sp; 2199 sp->handle = handle; 2200 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 2201 req->cnt -= req_cnt; 2202 2203 /* Fill-in common area */ 2204 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 2205 cmd_pkt->handle = make_handle(req->id, handle); 2206 2207 clr_ptr = (uint32_t *)cmd_pkt + 2; 2208 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 2209 2210 /* Set NPORT-ID and LUN number*/ 2211 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2212 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2213 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2214 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2215 2216 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 2217 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2218 2219 /* Total Data and protection segment(s) */ 2220 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 2221 2222 /* Build IOCB segments and adjust for data protection segments */ 2223 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 2224 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 2225 QLA_SUCCESS) 2226 goto queuing_error; 2227 2228 cmd_pkt->entry_count = (uint8_t)req_cnt; 2229 cmd_pkt->timeout = cpu_to_le16(0); 2230 wmb(); 2231 2232 /* Adjust ring index. */ 2233 req->ring_index++; 2234 if (req->ring_index == req->length) { 2235 req->ring_index = 0; 2236 req->ring_ptr = req->ring; 2237 } else 2238 req->ring_ptr++; 2239 2240 sp->qpair->cmd_cnt++; 2241 /* Set chip new ring index. */ 2242 wrt_reg_dword(req->req_q_in, req->ring_index); 2243 2244 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2245 if (vha->flags.process_response_queue && 2246 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2247 qla24xx_process_response_queue(vha, rsp); 2248 2249 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2250 2251 return QLA_SUCCESS; 2252 2253 queuing_error: 2254 if (status & QDSS_GOT_Q_SPACE) { 2255 req->outstanding_cmds[handle] = NULL; 2256 req->cnt += req_cnt; 2257 } 2258 /* Cleanup will be performed by the caller (queuecommand) */ 2259 2260 qla_put_iocbs(sp->qpair, &sp->iores); 2261 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2262 2263 return QLA_FUNCTION_FAILED; 2264 } 2265 2266 /* Generic Control-SRB manipulation functions. */ 2267 2268 /* hardware_lock assumed to be held. */ 2269 2270 void * 2271 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp) 2272 { 2273 scsi_qla_host_t *vha = qpair->vha; 2274 struct qla_hw_data *ha = vha->hw; 2275 struct req_que *req = qpair->req; 2276 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 2277 uint32_t handle; 2278 request_t *pkt; 2279 uint16_t cnt, req_cnt; 2280 2281 pkt = NULL; 2282 req_cnt = 1; 2283 handle = 0; 2284 2285 if (sp && (sp->type != SRB_SCSI_CMD)) { 2286 /* Adjust entry-counts as needed. */ 2287 req_cnt = sp->iocbs; 2288 } 2289 2290 /* Check for room on request queue. */ 2291 if (req->cnt < req_cnt + 2) { 2292 if (qpair->use_shadow_reg) 2293 cnt = *req->out_ptr; 2294 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) || 2295 IS_QLA28XX(ha)) 2296 cnt = rd_reg_dword(®->isp25mq.req_q_out); 2297 else if (IS_P3P_TYPE(ha)) 2298 cnt = rd_reg_dword(reg->isp82.req_q_out); 2299 else if (IS_FWI2_CAPABLE(ha)) 2300 cnt = rd_reg_dword(®->isp24.req_q_out); 2301 else if (IS_QLAFX00(ha)) 2302 cnt = rd_reg_dword(®->ispfx00.req_q_out); 2303 else 2304 cnt = qla2x00_debounce_register( 2305 ISP_REQ_Q_OUT(ha, ®->isp)); 2306 2307 if (!qpair->use_shadow_reg && cnt == ISP_REG16_DISCONNECT) { 2308 qla_schedule_eeh_work(vha); 2309 return NULL; 2310 } 2311 2312 if (req->ring_index < cnt) 2313 req->cnt = cnt - req->ring_index; 2314 else 2315 req->cnt = req->length - 2316 (req->ring_index - cnt); 2317 } 2318 if (req->cnt < req_cnt + 2) 2319 goto queuing_error; 2320 2321 if (sp) { 2322 handle = qla2xxx_get_next_handle(req); 2323 if (handle == 0) { 2324 ql_log(ql_log_warn, vha, 0x700b, 2325 "No room on outstanding cmd array.\n"); 2326 goto queuing_error; 2327 } 2328 2329 /* Prep command array. */ 2330 req->current_outstanding_cmd = handle; 2331 req->outstanding_cmds[handle] = sp; 2332 sp->handle = handle; 2333 } 2334 2335 /* Prep packet */ 2336 req->cnt -= req_cnt; 2337 pkt = req->ring_ptr; 2338 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2339 if (IS_QLAFX00(ha)) { 2340 wrt_reg_byte((u8 __force __iomem *)&pkt->entry_count, req_cnt); 2341 wrt_reg_dword((__le32 __force __iomem *)&pkt->handle, handle); 2342 } else { 2343 pkt->entry_count = req_cnt; 2344 pkt->handle = handle; 2345 } 2346 2347 return pkt; 2348 2349 queuing_error: 2350 qpair->tgt_counters.num_alloc_iocb_failed++; 2351 return pkt; 2352 } 2353 2354 void * 2355 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp) 2356 { 2357 scsi_qla_host_t *vha = qpair->vha; 2358 2359 if (qla2x00_reset_active(vha)) 2360 return NULL; 2361 2362 return __qla2x00_alloc_iocbs(qpair, sp); 2363 } 2364 2365 void * 2366 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp) 2367 { 2368 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp); 2369 } 2370 2371 static void 2372 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2373 { 2374 struct srb_iocb *lio = &sp->u.iocb_cmd; 2375 2376 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2377 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2378 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) { 2379 logio->control_flags |= cpu_to_le16(LCF_NVME_PRLI); 2380 if (sp->vha->flags.nvme_first_burst) 2381 logio->io_parameter[0] = 2382 cpu_to_le32(NVME_PRLI_SP_FIRST_BURST); 2383 if (sp->vha->flags.nvme2_enabled) { 2384 /* Set service parameter BIT_7 for NVME CONF support */ 2385 logio->io_parameter[0] |= 2386 cpu_to_le32(NVME_PRLI_SP_CONF); 2387 /* Set service parameter BIT_8 for SLER support */ 2388 logio->io_parameter[0] |= 2389 cpu_to_le32(NVME_PRLI_SP_SLER); 2390 /* Set service parameter BIT_9 for PI control support */ 2391 logio->io_parameter[0] |= 2392 cpu_to_le32(NVME_PRLI_SP_PI_CTRL); 2393 } 2394 } 2395 2396 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2397 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2398 logio->port_id[1] = sp->fcport->d_id.b.area; 2399 logio->port_id[2] = sp->fcport->d_id.b.domain; 2400 logio->vp_index = sp->vha->vp_idx; 2401 } 2402 2403 static void 2404 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2405 { 2406 struct srb_iocb *lio = &sp->u.iocb_cmd; 2407 2408 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2409 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2410 2411 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) { 2412 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2413 } else { 2414 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2415 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) 2416 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); 2417 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) 2418 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); 2419 if (lio->u.logio.flags & SRB_LOGIN_FCSP) { 2420 logio->control_flags |= 2421 cpu_to_le16(LCF_COMMON_FEAT | LCF_SKIP_PRLI); 2422 logio->io_parameter[0] = 2423 cpu_to_le32(LIO_COMM_FEAT_FCSP | LIO_COMM_FEAT_CIO); 2424 } 2425 } 2426 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2427 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2428 logio->port_id[1] = sp->fcport->d_id.b.area; 2429 logio->port_id[2] = sp->fcport->d_id.b.domain; 2430 logio->vp_index = sp->vha->vp_idx; 2431 } 2432 2433 static void 2434 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) 2435 { 2436 struct qla_hw_data *ha = sp->vha->hw; 2437 struct srb_iocb *lio = &sp->u.iocb_cmd; 2438 uint16_t opts; 2439 2440 mbx->entry_type = MBX_IOCB_TYPE; 2441 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2442 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); 2443 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; 2444 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; 2445 if (HAS_EXTENDED_IDS(ha)) { 2446 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2447 mbx->mb10 = cpu_to_le16(opts); 2448 } else { 2449 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); 2450 } 2451 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2452 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2453 sp->fcport->d_id.b.al_pa); 2454 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2455 } 2456 2457 static void 2458 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2459 { 2460 u16 control_flags = LCF_COMMAND_LOGO; 2461 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2462 2463 if (sp->fcport->explicit_logout) { 2464 control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT; 2465 } else { 2466 control_flags |= LCF_IMPL_LOGO; 2467 2468 if (!sp->fcport->keep_nport_handle) 2469 control_flags |= LCF_FREE_NPORT; 2470 } 2471 2472 logio->control_flags = cpu_to_le16(control_flags); 2473 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2474 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2475 logio->port_id[1] = sp->fcport->d_id.b.area; 2476 logio->port_id[2] = sp->fcport->d_id.b.domain; 2477 logio->vp_index = sp->vha->vp_idx; 2478 } 2479 2480 static void 2481 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) 2482 { 2483 struct qla_hw_data *ha = sp->vha->hw; 2484 2485 mbx->entry_type = MBX_IOCB_TYPE; 2486 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2487 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); 2488 mbx->mb1 = HAS_EXTENDED_IDS(ha) ? 2489 cpu_to_le16(sp->fcport->loop_id) : 2490 cpu_to_le16(sp->fcport->loop_id << 8); 2491 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2492 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2493 sp->fcport->d_id.b.al_pa); 2494 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2495 /* Implicit: mbx->mbx10 = 0. */ 2496 } 2497 2498 static void 2499 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2500 { 2501 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2502 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); 2503 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2504 logio->vp_index = sp->vha->vp_idx; 2505 } 2506 2507 static void 2508 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) 2509 { 2510 struct qla_hw_data *ha = sp->vha->hw; 2511 2512 mbx->entry_type = MBX_IOCB_TYPE; 2513 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2514 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); 2515 if (HAS_EXTENDED_IDS(ha)) { 2516 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2517 mbx->mb10 = cpu_to_le16(BIT_0); 2518 } else { 2519 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); 2520 } 2521 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); 2522 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); 2523 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); 2524 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); 2525 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2526 } 2527 2528 static void 2529 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) 2530 { 2531 uint32_t flags; 2532 uint64_t lun; 2533 struct fc_port *fcport = sp->fcport; 2534 scsi_qla_host_t *vha = fcport->vha; 2535 struct qla_hw_data *ha = vha->hw; 2536 struct srb_iocb *iocb = &sp->u.iocb_cmd; 2537 struct req_que *req = vha->req; 2538 2539 flags = iocb->u.tmf.flags; 2540 lun = iocb->u.tmf.lun; 2541 2542 tsk->entry_type = TSK_MGMT_IOCB_TYPE; 2543 tsk->entry_count = 1; 2544 tsk->handle = make_handle(req->id, tsk->handle); 2545 tsk->nport_handle = cpu_to_le16(fcport->loop_id); 2546 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); 2547 tsk->control_flags = cpu_to_le32(flags); 2548 tsk->port_id[0] = fcport->d_id.b.al_pa; 2549 tsk->port_id[1] = fcport->d_id.b.area; 2550 tsk->port_id[2] = fcport->d_id.b.domain; 2551 tsk->vp_index = fcport->vha->vp_idx; 2552 2553 if (flags == TCF_LUN_RESET) { 2554 int_to_scsilun(lun, &tsk->lun); 2555 host_to_fcp_swap((uint8_t *)&tsk->lun, 2556 sizeof(tsk->lun)); 2557 } 2558 } 2559 2560 void qla2x00_init_timer(srb_t *sp, unsigned long tmo) 2561 { 2562 timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0); 2563 sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ; 2564 sp->free = qla2x00_sp_free; 2565 if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD) 2566 init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp); 2567 sp->start_timer = 1; 2568 } 2569 2570 static void qla2x00_els_dcmd_sp_free(srb_t *sp) 2571 { 2572 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2573 2574 kfree(sp->fcport); 2575 2576 if (elsio->u.els_logo.els_logo_pyld) 2577 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, 2578 elsio->u.els_logo.els_logo_pyld, 2579 elsio->u.els_logo.els_logo_pyld_dma); 2580 2581 del_timer(&elsio->timer); 2582 qla2x00_rel_sp(sp); 2583 } 2584 2585 static void 2586 qla2x00_els_dcmd_iocb_timeout(void *data) 2587 { 2588 srb_t *sp = data; 2589 fc_port_t *fcport = sp->fcport; 2590 struct scsi_qla_host *vha = sp->vha; 2591 struct srb_iocb *lio = &sp->u.iocb_cmd; 2592 unsigned long flags = 0; 2593 int res, h; 2594 2595 ql_dbg(ql_dbg_io, vha, 0x3069, 2596 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n", 2597 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, 2598 fcport->d_id.b.al_pa); 2599 2600 /* Abort the exchange */ 2601 res = qla24xx_async_abort_cmd(sp, false); 2602 if (res) { 2603 ql_dbg(ql_dbg_io, vha, 0x3070, 2604 "mbx abort_command failed.\n"); 2605 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); 2606 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { 2607 if (sp->qpair->req->outstanding_cmds[h] == sp) { 2608 sp->qpair->req->outstanding_cmds[h] = NULL; 2609 break; 2610 } 2611 } 2612 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); 2613 complete(&lio->u.els_logo.comp); 2614 } else { 2615 ql_dbg(ql_dbg_io, vha, 0x3071, 2616 "mbx abort_command success.\n"); 2617 } 2618 } 2619 2620 static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res) 2621 { 2622 fc_port_t *fcport = sp->fcport; 2623 struct srb_iocb *lio = &sp->u.iocb_cmd; 2624 struct scsi_qla_host *vha = sp->vha; 2625 2626 ql_dbg(ql_dbg_io, vha, 0x3072, 2627 "%s hdl=%x, portid=%02x%02x%02x done\n", 2628 sp->name, sp->handle, fcport->d_id.b.domain, 2629 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2630 2631 complete(&lio->u.els_logo.comp); 2632 } 2633 2634 int 2635 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, 2636 port_id_t remote_did) 2637 { 2638 srb_t *sp; 2639 fc_port_t *fcport = NULL; 2640 struct srb_iocb *elsio = NULL; 2641 struct qla_hw_data *ha = vha->hw; 2642 struct els_logo_payload logo_pyld; 2643 int rval = QLA_SUCCESS; 2644 2645 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); 2646 if (!fcport) { 2647 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n"); 2648 return -ENOMEM; 2649 } 2650 2651 /* Alloc SRB structure */ 2652 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2653 if (!sp) { 2654 kfree(fcport); 2655 ql_log(ql_log_info, vha, 0x70e6, 2656 "SRB allocation failed\n"); 2657 return -ENOMEM; 2658 } 2659 2660 elsio = &sp->u.iocb_cmd; 2661 fcport->loop_id = 0xFFFF; 2662 fcport->d_id.b.domain = remote_did.b.domain; 2663 fcport->d_id.b.area = remote_did.b.area; 2664 fcport->d_id.b.al_pa = remote_did.b.al_pa; 2665 2666 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n", 2667 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); 2668 2669 sp->type = SRB_ELS_DCMD; 2670 sp->name = "ELS_DCMD"; 2671 sp->fcport = fcport; 2672 elsio->timeout = qla2x00_els_dcmd_iocb_timeout; 2673 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT); 2674 init_completion(&sp->u.iocb_cmd.u.els_logo.comp); 2675 sp->done = qla2x00_els_dcmd_sp_done; 2676 sp->free = qla2x00_els_dcmd_sp_free; 2677 2678 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev, 2679 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma, 2680 GFP_KERNEL); 2681 2682 if (!elsio->u.els_logo.els_logo_pyld) { 2683 sp->free(sp); 2684 return QLA_FUNCTION_FAILED; 2685 } 2686 2687 memset(&logo_pyld, 0, sizeof(struct els_logo_payload)); 2688 2689 elsio->u.els_logo.els_cmd = els_opcode; 2690 logo_pyld.opcode = els_opcode; 2691 logo_pyld.s_id[0] = vha->d_id.b.al_pa; 2692 logo_pyld.s_id[1] = vha->d_id.b.area; 2693 logo_pyld.s_id[2] = vha->d_id.b.domain; 2694 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t)); 2695 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE); 2696 2697 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld, 2698 sizeof(struct els_logo_payload)); 2699 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:"); 2700 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a, 2701 elsio->u.els_logo.els_logo_pyld, 2702 sizeof(*elsio->u.els_logo.els_logo_pyld)); 2703 2704 rval = qla2x00_start_sp(sp); 2705 if (rval != QLA_SUCCESS) { 2706 sp->free(sp); 2707 return QLA_FUNCTION_FAILED; 2708 } 2709 2710 ql_dbg(ql_dbg_io, vha, 0x3074, 2711 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n", 2712 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain, 2713 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2714 2715 wait_for_completion(&elsio->u.els_logo.comp); 2716 2717 sp->free(sp); 2718 return rval; 2719 } 2720 2721 static void 2722 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 2723 { 2724 scsi_qla_host_t *vha = sp->vha; 2725 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2726 2727 els_iocb->entry_type = ELS_IOCB_TYPE; 2728 els_iocb->entry_count = 1; 2729 els_iocb->sys_define = 0; 2730 els_iocb->entry_status = 0; 2731 els_iocb->handle = sp->handle; 2732 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2733 els_iocb->tx_dsd_count = cpu_to_le16(1); 2734 els_iocb->vp_index = vha->vp_idx; 2735 els_iocb->sof_type = EST_SOFI3; 2736 els_iocb->rx_dsd_count = 0; 2737 els_iocb->opcode = elsio->u.els_logo.els_cmd; 2738 2739 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; 2740 els_iocb->d_id[1] = sp->fcport->d_id.b.area; 2741 els_iocb->d_id[2] = sp->fcport->d_id.b.domain; 2742 /* For SID the byte order is different than DID */ 2743 els_iocb->s_id[1] = vha->d_id.b.al_pa; 2744 els_iocb->s_id[2] = vha->d_id.b.area; 2745 els_iocb->s_id[0] = vha->d_id.b.domain; 2746 2747 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) { 2748 els_iocb->control_flags = 0; 2749 els_iocb->tx_byte_count = els_iocb->tx_len = 2750 cpu_to_le32(sizeof(struct els_plogi_payload)); 2751 put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma, 2752 &els_iocb->tx_address); 2753 els_iocb->rx_dsd_count = cpu_to_le16(1); 2754 els_iocb->rx_byte_count = els_iocb->rx_len = 2755 cpu_to_le32(sizeof(struct els_plogi_payload)); 2756 put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma, 2757 &els_iocb->rx_address); 2758 2759 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, 2760 "PLOGI ELS IOCB:\n"); 2761 ql_dump_buffer(ql_log_info, vha, 0x0109, 2762 (uint8_t *)els_iocb, 2763 sizeof(*els_iocb)); 2764 } else { 2765 els_iocb->tx_byte_count = 2766 cpu_to_le32(sizeof(struct els_logo_payload)); 2767 put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma, 2768 &els_iocb->tx_address); 2769 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); 2770 2771 els_iocb->rx_byte_count = 0; 2772 els_iocb->rx_address = 0; 2773 els_iocb->rx_len = 0; 2774 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076, 2775 "LOGO ELS IOCB:"); 2776 ql_dump_buffer(ql_log_info, vha, 0x010b, 2777 els_iocb, 2778 sizeof(*els_iocb)); 2779 } 2780 2781 sp->vha->qla_stats.control_requests++; 2782 } 2783 2784 static void 2785 qla2x00_els_dcmd2_iocb_timeout(void *data) 2786 { 2787 srb_t *sp = data; 2788 fc_port_t *fcport = sp->fcport; 2789 struct scsi_qla_host *vha = sp->vha; 2790 unsigned long flags = 0; 2791 int res, h; 2792 2793 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069, 2794 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n", 2795 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24); 2796 2797 /* Abort the exchange */ 2798 res = qla24xx_async_abort_cmd(sp, false); 2799 ql_dbg(ql_dbg_io, vha, 0x3070, 2800 "mbx abort_command %s\n", 2801 (res == QLA_SUCCESS) ? "successful" : "failed"); 2802 if (res) { 2803 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); 2804 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { 2805 if (sp->qpair->req->outstanding_cmds[h] == sp) { 2806 sp->qpair->req->outstanding_cmds[h] = NULL; 2807 break; 2808 } 2809 } 2810 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); 2811 sp->done(sp, QLA_FUNCTION_TIMEOUT); 2812 } 2813 } 2814 2815 void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi) 2816 { 2817 if (els_plogi->els_plogi_pyld) 2818 dma_free_coherent(&vha->hw->pdev->dev, 2819 els_plogi->tx_size, 2820 els_plogi->els_plogi_pyld, 2821 els_plogi->els_plogi_pyld_dma); 2822 2823 if (els_plogi->els_resp_pyld) 2824 dma_free_coherent(&vha->hw->pdev->dev, 2825 els_plogi->rx_size, 2826 els_plogi->els_resp_pyld, 2827 els_plogi->els_resp_pyld_dma); 2828 } 2829 2830 static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res) 2831 { 2832 fc_port_t *fcport = sp->fcport; 2833 struct srb_iocb *lio = &sp->u.iocb_cmd; 2834 struct scsi_qla_host *vha = sp->vha; 2835 struct event_arg ea; 2836 struct qla_work_evt *e; 2837 struct fc_port *conflict_fcport; 2838 port_id_t cid; /* conflict Nport id */ 2839 const __le32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status; 2840 u16 lid; 2841 2842 ql_dbg(ql_dbg_disc, vha, 0x3072, 2843 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n", 2844 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name); 2845 2846 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE); 2847 del_timer(&sp->u.iocb_cmd.timer); 2848 2849 if (sp->flags & SRB_WAKEUP_ON_COMP) 2850 complete(&lio->u.els_plogi.comp); 2851 else { 2852 switch (le32_to_cpu(fw_status[0])) { 2853 case CS_DATA_UNDERRUN: 2854 case CS_COMPLETE: 2855 memset(&ea, 0, sizeof(ea)); 2856 ea.fcport = fcport; 2857 ea.rc = res; 2858 qla_handle_els_plogi_done(vha, &ea); 2859 break; 2860 2861 case CS_IOCB_ERROR: 2862 switch (le32_to_cpu(fw_status[1])) { 2863 case LSC_SCODE_PORTID_USED: 2864 lid = le32_to_cpu(fw_status[2]) & 0xffff; 2865 qlt_find_sess_invalidate_other(vha, 2866 wwn_to_u64(fcport->port_name), 2867 fcport->d_id, lid, &conflict_fcport); 2868 if (conflict_fcport) { 2869 /* 2870 * Another fcport shares the same 2871 * loop_id & nport id; conflict 2872 * fcport needs to finish cleanup 2873 * before this fcport can proceed 2874 * to login. 2875 */ 2876 conflict_fcport->conflict = fcport; 2877 fcport->login_pause = 1; 2878 ql_dbg(ql_dbg_disc, vha, 0x20ed, 2879 "%s %d %8phC pid %06x inuse with lid %#x post gidpn\n", 2880 __func__, __LINE__, 2881 fcport->port_name, 2882 fcport->d_id.b24, lid); 2883 } else { 2884 ql_dbg(ql_dbg_disc, vha, 0x20ed, 2885 "%s %d %8phC pid %06x inuse with lid %#x sched del\n", 2886 __func__, __LINE__, 2887 fcport->port_name, 2888 fcport->d_id.b24, lid); 2889 qla2x00_clear_loop_id(fcport); 2890 set_bit(lid, vha->hw->loop_id_map); 2891 fcport->loop_id = lid; 2892 fcport->keep_nport_handle = 0; 2893 qlt_schedule_sess_for_deletion(fcport); 2894 } 2895 break; 2896 2897 case LSC_SCODE_NPORT_USED: 2898 cid.b.domain = (le32_to_cpu(fw_status[2]) >> 16) 2899 & 0xff; 2900 cid.b.area = (le32_to_cpu(fw_status[2]) >> 8) 2901 & 0xff; 2902 cid.b.al_pa = le32_to_cpu(fw_status[2]) & 0xff; 2903 cid.b.rsvd_1 = 0; 2904 2905 ql_dbg(ql_dbg_disc, vha, 0x20ec, 2906 "%s %d %8phC lid %#x in use with pid %06x post gnl\n", 2907 __func__, __LINE__, fcport->port_name, 2908 fcport->loop_id, cid.b24); 2909 set_bit(fcport->loop_id, 2910 vha->hw->loop_id_map); 2911 fcport->loop_id = FC_NO_LOOP_ID; 2912 qla24xx_post_gnl_work(vha, fcport); 2913 break; 2914 2915 case LSC_SCODE_NOXCB: 2916 vha->hw->exch_starvation++; 2917 if (vha->hw->exch_starvation > 5) { 2918 ql_log(ql_log_warn, vha, 0xd046, 2919 "Exchange starvation. Resetting RISC\n"); 2920 vha->hw->exch_starvation = 0; 2921 set_bit(ISP_ABORT_NEEDED, 2922 &vha->dpc_flags); 2923 qla2xxx_wake_dpc(vha); 2924 } 2925 fallthrough; 2926 default: 2927 ql_dbg(ql_dbg_disc, vha, 0x20eb, 2928 "%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n", 2929 __func__, sp->fcport->port_name, 2930 fw_status[0], fw_status[1], fw_status[2]); 2931 2932 fcport->flags &= ~FCF_ASYNC_SENT; 2933 qla2x00_set_fcport_disc_state(fcport, 2934 DSC_LOGIN_FAILED); 2935 set_bit(RELOGIN_NEEDED, &vha->dpc_flags); 2936 break; 2937 } 2938 break; 2939 2940 default: 2941 ql_dbg(ql_dbg_disc, vha, 0x20eb, 2942 "%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n", 2943 __func__, sp->fcport->port_name, 2944 fw_status[0], fw_status[1], fw_status[2]); 2945 2946 sp->fcport->flags &= ~FCF_ASYNC_SENT; 2947 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_FAILED); 2948 set_bit(RELOGIN_NEEDED, &vha->dpc_flags); 2949 break; 2950 } 2951 2952 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP); 2953 if (!e) { 2954 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2955 2956 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); 2957 sp->free(sp); 2958 return; 2959 } 2960 e->u.iosb.sp = sp; 2961 qla2x00_post_work(vha, e); 2962 } 2963 } 2964 2965 int 2966 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, 2967 fc_port_t *fcport, bool wait) 2968 { 2969 srb_t *sp; 2970 struct srb_iocb *elsio = NULL; 2971 struct qla_hw_data *ha = vha->hw; 2972 int rval = QLA_SUCCESS; 2973 void *ptr, *resp_ptr; 2974 2975 /* Alloc SRB structure */ 2976 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2977 if (!sp) { 2978 ql_log(ql_log_info, vha, 0x70e6, 2979 "SRB allocation failed\n"); 2980 fcport->flags &= ~FCF_ASYNC_ACTIVE; 2981 return -ENOMEM; 2982 } 2983 2984 fcport->flags |= FCF_ASYNC_SENT; 2985 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND); 2986 elsio = &sp->u.iocb_cmd; 2987 ql_dbg(ql_dbg_io, vha, 0x3073, 2988 "Enter: PLOGI portid=%06x\n", fcport->d_id.b24); 2989 2990 sp->type = SRB_ELS_DCMD; 2991 sp->name = "ELS_DCMD"; 2992 sp->fcport = fcport; 2993 2994 elsio->timeout = qla2x00_els_dcmd2_iocb_timeout; 2995 if (wait) 2996 sp->flags = SRB_WAKEUP_ON_COMP; 2997 2998 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT + 2); 2999 3000 sp->done = qla2x00_els_dcmd2_sp_done; 3001 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE; 3002 3003 ptr = elsio->u.els_plogi.els_plogi_pyld = 3004 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size, 3005 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL); 3006 3007 if (!elsio->u.els_plogi.els_plogi_pyld) { 3008 rval = QLA_FUNCTION_FAILED; 3009 goto out; 3010 } 3011 3012 resp_ptr = elsio->u.els_plogi.els_resp_pyld = 3013 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size, 3014 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL); 3015 3016 if (!elsio->u.els_plogi.els_resp_pyld) { 3017 rval = QLA_FUNCTION_FAILED; 3018 goto out; 3019 } 3020 3021 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr); 3022 3023 memset(ptr, 0, sizeof(struct els_plogi_payload)); 3024 memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); 3025 memcpy(elsio->u.els_plogi.els_plogi_pyld->data, 3026 &ha->plogi_els_payld.fl_csp, LOGIN_TEMPLATE_SIZE); 3027 3028 elsio->u.els_plogi.els_cmd = els_opcode; 3029 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; 3030 3031 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n"); 3032 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109, 3033 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 3034 sizeof(*elsio->u.els_plogi.els_plogi_pyld)); 3035 3036 init_completion(&elsio->u.els_plogi.comp); 3037 rval = qla2x00_start_sp(sp); 3038 if (rval != QLA_SUCCESS) { 3039 rval = QLA_FUNCTION_FAILED; 3040 } else { 3041 ql_dbg(ql_dbg_disc, vha, 0x3074, 3042 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n", 3043 sp->name, sp->handle, fcport->loop_id, 3044 fcport->d_id.b24, vha->d_id.b24); 3045 } 3046 3047 if (wait) { 3048 wait_for_completion(&elsio->u.els_plogi.comp); 3049 3050 if (elsio->u.els_plogi.comp_status != CS_COMPLETE) 3051 rval = QLA_FUNCTION_FAILED; 3052 } else { 3053 goto done; 3054 } 3055 3056 out: 3057 fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE); 3058 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); 3059 sp->free(sp); 3060 done: 3061 return rval; 3062 } 3063 3064 /* it is assume qpair lock is held */ 3065 void qla_els_pt_iocb(struct scsi_qla_host *vha, 3066 struct els_entry_24xx *els_iocb, 3067 struct qla_els_pt_arg *a) 3068 { 3069 els_iocb->entry_type = ELS_IOCB_TYPE; 3070 els_iocb->entry_count = 1; 3071 els_iocb->sys_define = 0; 3072 els_iocb->entry_status = 0; 3073 els_iocb->handle = QLA_SKIP_HANDLE; 3074 els_iocb->nport_handle = a->nport_handle; 3075 els_iocb->rx_xchg_address = a->rx_xchg_address; 3076 els_iocb->tx_dsd_count = cpu_to_le16(1); 3077 els_iocb->vp_index = a->vp_idx; 3078 els_iocb->sof_type = EST_SOFI3; 3079 els_iocb->rx_dsd_count = cpu_to_le16(0); 3080 els_iocb->opcode = a->els_opcode; 3081 3082 els_iocb->d_id[0] = a->did.b.al_pa; 3083 els_iocb->d_id[1] = a->did.b.area; 3084 els_iocb->d_id[2] = a->did.b.domain; 3085 /* For SID the byte order is different than DID */ 3086 els_iocb->s_id[1] = vha->d_id.b.al_pa; 3087 els_iocb->s_id[2] = vha->d_id.b.area; 3088 els_iocb->s_id[0] = vha->d_id.b.domain; 3089 3090 els_iocb->control_flags = cpu_to_le16(a->control_flags); 3091 3092 els_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count); 3093 els_iocb->tx_len = cpu_to_le32(a->tx_len); 3094 put_unaligned_le64(a->tx_addr, &els_iocb->tx_address); 3095 3096 els_iocb->rx_byte_count = cpu_to_le32(a->rx_byte_count); 3097 els_iocb->rx_len = cpu_to_le32(a->rx_len); 3098 put_unaligned_le64(a->rx_addr, &els_iocb->rx_address); 3099 } 3100 3101 static void 3102 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 3103 { 3104 struct bsg_job *bsg_job = sp->u.bsg_job; 3105 struct fc_bsg_request *bsg_request = bsg_job->request; 3106 3107 els_iocb->entry_type = ELS_IOCB_TYPE; 3108 els_iocb->entry_count = 1; 3109 els_iocb->sys_define = 0; 3110 els_iocb->entry_status = 0; 3111 els_iocb->handle = sp->handle; 3112 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3113 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3114 els_iocb->vp_index = sp->vha->vp_idx; 3115 els_iocb->sof_type = EST_SOFI3; 3116 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3117 3118 els_iocb->opcode = 3119 sp->type == SRB_ELS_CMD_RPT ? 3120 bsg_request->rqst_data.r_els.els_code : 3121 bsg_request->rqst_data.h_els.command_code; 3122 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; 3123 els_iocb->d_id[1] = sp->fcport->d_id.b.area; 3124 els_iocb->d_id[2] = sp->fcport->d_id.b.domain; 3125 els_iocb->control_flags = 0; 3126 els_iocb->rx_byte_count = 3127 cpu_to_le32(bsg_job->reply_payload.payload_len); 3128 els_iocb->tx_byte_count = 3129 cpu_to_le32(bsg_job->request_payload.payload_len); 3130 3131 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), 3132 &els_iocb->tx_address); 3133 els_iocb->tx_len = cpu_to_le32(sg_dma_len 3134 (bsg_job->request_payload.sg_list)); 3135 3136 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), 3137 &els_iocb->rx_address); 3138 els_iocb->rx_len = cpu_to_le32(sg_dma_len 3139 (bsg_job->reply_payload.sg_list)); 3140 3141 sp->vha->qla_stats.control_requests++; 3142 } 3143 3144 static void 3145 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) 3146 { 3147 uint16_t avail_dsds; 3148 struct dsd64 *cur_dsd; 3149 struct scatterlist *sg; 3150 int index; 3151 uint16_t tot_dsds; 3152 scsi_qla_host_t *vha = sp->vha; 3153 struct qla_hw_data *ha = vha->hw; 3154 struct bsg_job *bsg_job = sp->u.bsg_job; 3155 int entry_count = 1; 3156 3157 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); 3158 ct_iocb->entry_type = CT_IOCB_TYPE; 3159 ct_iocb->entry_status = 0; 3160 ct_iocb->handle1 = sp->handle; 3161 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); 3162 ct_iocb->status = cpu_to_le16(0); 3163 ct_iocb->control_flags = cpu_to_le16(0); 3164 ct_iocb->timeout = 0; 3165 ct_iocb->cmd_dsd_count = 3166 cpu_to_le16(bsg_job->request_payload.sg_cnt); 3167 ct_iocb->total_dsd_count = 3168 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); 3169 ct_iocb->req_bytecount = 3170 cpu_to_le32(bsg_job->request_payload.payload_len); 3171 ct_iocb->rsp_bytecount = 3172 cpu_to_le32(bsg_job->reply_payload.payload_len); 3173 3174 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), 3175 &ct_iocb->req_dsd.address); 3176 ct_iocb->req_dsd.length = ct_iocb->req_bytecount; 3177 3178 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), 3179 &ct_iocb->rsp_dsd.address); 3180 ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount; 3181 3182 avail_dsds = 1; 3183 cur_dsd = &ct_iocb->rsp_dsd; 3184 index = 0; 3185 tot_dsds = bsg_job->reply_payload.sg_cnt; 3186 3187 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { 3188 cont_a64_entry_t *cont_pkt; 3189 3190 /* Allocate additional continuation packets? */ 3191 if (avail_dsds == 0) { 3192 /* 3193 * Five DSDs are available in the Cont. 3194 * Type 1 IOCB. 3195 */ 3196 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 3197 vha->hw->req_q_map[0]); 3198 cur_dsd = cont_pkt->dsd; 3199 avail_dsds = 5; 3200 entry_count++; 3201 } 3202 3203 append_dsd64(&cur_dsd, sg); 3204 avail_dsds--; 3205 } 3206 ct_iocb->entry_count = entry_count; 3207 3208 sp->vha->qla_stats.control_requests++; 3209 } 3210 3211 static void 3212 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) 3213 { 3214 uint16_t avail_dsds; 3215 struct dsd64 *cur_dsd; 3216 struct scatterlist *sg; 3217 int index; 3218 uint16_t cmd_dsds, rsp_dsds; 3219 scsi_qla_host_t *vha = sp->vha; 3220 struct qla_hw_data *ha = vha->hw; 3221 struct bsg_job *bsg_job = sp->u.bsg_job; 3222 int entry_count = 1; 3223 cont_a64_entry_t *cont_pkt = NULL; 3224 3225 ct_iocb->entry_type = CT_IOCB_TYPE; 3226 ct_iocb->entry_status = 0; 3227 ct_iocb->sys_define = 0; 3228 ct_iocb->handle = sp->handle; 3229 3230 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3231 ct_iocb->vp_index = sp->vha->vp_idx; 3232 ct_iocb->comp_status = cpu_to_le16(0); 3233 3234 cmd_dsds = bsg_job->request_payload.sg_cnt; 3235 rsp_dsds = bsg_job->reply_payload.sg_cnt; 3236 3237 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds); 3238 ct_iocb->timeout = 0; 3239 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds); 3240 ct_iocb->cmd_byte_count = 3241 cpu_to_le32(bsg_job->request_payload.payload_len); 3242 3243 avail_dsds = 2; 3244 cur_dsd = ct_iocb->dsd; 3245 index = 0; 3246 3247 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) { 3248 /* Allocate additional continuation packets? */ 3249 if (avail_dsds == 0) { 3250 /* 3251 * Five DSDs are available in the Cont. 3252 * Type 1 IOCB. 3253 */ 3254 cont_pkt = qla2x00_prep_cont_type1_iocb( 3255 vha, ha->req_q_map[0]); 3256 cur_dsd = cont_pkt->dsd; 3257 avail_dsds = 5; 3258 entry_count++; 3259 } 3260 3261 append_dsd64(&cur_dsd, sg); 3262 avail_dsds--; 3263 } 3264 3265 index = 0; 3266 3267 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) { 3268 /* Allocate additional continuation packets? */ 3269 if (avail_dsds == 0) { 3270 /* 3271 * Five DSDs are available in the Cont. 3272 * Type 1 IOCB. 3273 */ 3274 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 3275 ha->req_q_map[0]); 3276 cur_dsd = cont_pkt->dsd; 3277 avail_dsds = 5; 3278 entry_count++; 3279 } 3280 3281 append_dsd64(&cur_dsd, sg); 3282 avail_dsds--; 3283 } 3284 ct_iocb->entry_count = entry_count; 3285 } 3286 3287 /* 3288 * qla82xx_start_scsi() - Send a SCSI command to the ISP 3289 * @sp: command to send to the ISP 3290 * 3291 * Returns non-zero if a failure occurred, else zero. 3292 */ 3293 int 3294 qla82xx_start_scsi(srb_t *sp) 3295 { 3296 int nseg; 3297 unsigned long flags; 3298 struct scsi_cmnd *cmd; 3299 uint32_t *clr_ptr; 3300 uint32_t handle; 3301 uint16_t cnt; 3302 uint16_t req_cnt; 3303 uint16_t tot_dsds; 3304 struct device_reg_82xx __iomem *reg; 3305 uint32_t dbval; 3306 __be32 *fcp_dl; 3307 uint8_t additional_cdb_len; 3308 struct ct6_dsd *ctx; 3309 struct scsi_qla_host *vha = sp->vha; 3310 struct qla_hw_data *ha = vha->hw; 3311 struct req_que *req = NULL; 3312 struct rsp_que *rsp = NULL; 3313 3314 /* Setup device pointers. */ 3315 reg = &ha->iobase->isp82; 3316 cmd = GET_CMD_SP(sp); 3317 req = vha->req; 3318 rsp = ha->rsp_q_map[0]; 3319 3320 /* So we know we haven't pci_map'ed anything yet */ 3321 tot_dsds = 0; 3322 3323 dbval = 0x04 | (ha->portnum << 5); 3324 3325 /* Send marker if required */ 3326 if (vha->marker_needed != 0) { 3327 if (qla2x00_marker(vha, ha->base_qpair, 3328 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { 3329 ql_log(ql_log_warn, vha, 0x300c, 3330 "qla2x00_marker failed for cmd=%p.\n", cmd); 3331 return QLA_FUNCTION_FAILED; 3332 } 3333 vha->marker_needed = 0; 3334 } 3335 3336 /* Acquire ring specific lock */ 3337 spin_lock_irqsave(&ha->hardware_lock, flags); 3338 3339 handle = qla2xxx_get_next_handle(req); 3340 if (handle == 0) 3341 goto queuing_error; 3342 3343 /* Map the sg table so we have an accurate count of sg entries needed */ 3344 if (scsi_sg_count(cmd)) { 3345 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 3346 scsi_sg_count(cmd), cmd->sc_data_direction); 3347 if (unlikely(!nseg)) 3348 goto queuing_error; 3349 } else 3350 nseg = 0; 3351 3352 tot_dsds = nseg; 3353 3354 if (tot_dsds > ql2xshiftctondsd) { 3355 struct cmd_type_6 *cmd_pkt; 3356 uint16_t more_dsd_lists = 0; 3357 struct dsd_dma *dsd_ptr; 3358 uint16_t i; 3359 3360 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); 3361 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { 3362 ql_dbg(ql_dbg_io, vha, 0x300d, 3363 "Num of DSD list %d is than %d for cmd=%p.\n", 3364 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, 3365 cmd); 3366 goto queuing_error; 3367 } 3368 3369 if (more_dsd_lists <= ha->gbl_dsd_avail) 3370 goto sufficient_dsds; 3371 else 3372 more_dsd_lists -= ha->gbl_dsd_avail; 3373 3374 for (i = 0; i < more_dsd_lists; i++) { 3375 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 3376 if (!dsd_ptr) { 3377 ql_log(ql_log_fatal, vha, 0x300e, 3378 "Failed to allocate memory for dsd_dma " 3379 "for cmd=%p.\n", cmd); 3380 goto queuing_error; 3381 } 3382 3383 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, 3384 GFP_ATOMIC, &dsd_ptr->dsd_list_dma); 3385 if (!dsd_ptr->dsd_addr) { 3386 kfree(dsd_ptr); 3387 ql_log(ql_log_fatal, vha, 0x300f, 3388 "Failed to allocate memory for dsd_addr " 3389 "for cmd=%p.\n", cmd); 3390 goto queuing_error; 3391 } 3392 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); 3393 ha->gbl_dsd_avail++; 3394 } 3395 3396 sufficient_dsds: 3397 req_cnt = 1; 3398 3399 if (req->cnt < (req_cnt + 2)) { 3400 cnt = (uint16_t)rd_reg_dword_relaxed( 3401 ®->req_q_out[0]); 3402 if (req->ring_index < cnt) 3403 req->cnt = cnt - req->ring_index; 3404 else 3405 req->cnt = req->length - 3406 (req->ring_index - cnt); 3407 if (req->cnt < (req_cnt + 2)) 3408 goto queuing_error; 3409 } 3410 3411 ctx = sp->u.scmd.ct6_ctx = 3412 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); 3413 if (!ctx) { 3414 ql_log(ql_log_fatal, vha, 0x3010, 3415 "Failed to allocate ctx for cmd=%p.\n", cmd); 3416 goto queuing_error; 3417 } 3418 3419 memset(ctx, 0, sizeof(struct ct6_dsd)); 3420 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, 3421 GFP_ATOMIC, &ctx->fcp_cmnd_dma); 3422 if (!ctx->fcp_cmnd) { 3423 ql_log(ql_log_fatal, vha, 0x3011, 3424 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); 3425 goto queuing_error; 3426 } 3427 3428 /* Initialize the DSD list and dma handle */ 3429 INIT_LIST_HEAD(&ctx->dsd_list); 3430 ctx->dsd_use_cnt = 0; 3431 3432 if (cmd->cmd_len > 16) { 3433 additional_cdb_len = cmd->cmd_len - 16; 3434 if ((cmd->cmd_len % 4) != 0) { 3435 /* SCSI command bigger than 16 bytes must be 3436 * multiple of 4 3437 */ 3438 ql_log(ql_log_warn, vha, 0x3012, 3439 "scsi cmd len %d not multiple of 4 " 3440 "for cmd=%p.\n", cmd->cmd_len, cmd); 3441 goto queuing_error_fcp_cmnd; 3442 } 3443 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; 3444 } else { 3445 additional_cdb_len = 0; 3446 ctx->fcp_cmnd_len = 12 + 16 + 4; 3447 } 3448 3449 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; 3450 cmd_pkt->handle = make_handle(req->id, handle); 3451 3452 /* Zero out remaining portion of packet. */ 3453 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 3454 clr_ptr = (uint32_t *)cmd_pkt + 2; 3455 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3456 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3457 3458 /* Set NPORT-ID and LUN number*/ 3459 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3460 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3461 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3462 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3463 cmd_pkt->vp_index = sp->vha->vp_idx; 3464 3465 /* Build IOCB segments */ 3466 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) 3467 goto queuing_error_fcp_cmnd; 3468 3469 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3470 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 3471 3472 /* build FCP_CMND IU */ 3473 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); 3474 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; 3475 3476 if (cmd->sc_data_direction == DMA_TO_DEVICE) 3477 ctx->fcp_cmnd->additional_cdb_len |= 1; 3478 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 3479 ctx->fcp_cmnd->additional_cdb_len |= 2; 3480 3481 /* Populate the FCP_PRIO. */ 3482 if (ha->flags.fcp_prio_enabled) 3483 ctx->fcp_cmnd->task_attribute |= 3484 sp->fcport->fcp_prio << 3; 3485 3486 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 3487 3488 fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 + 3489 additional_cdb_len); 3490 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); 3491 3492 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); 3493 put_unaligned_le64(ctx->fcp_cmnd_dma, 3494 &cmd_pkt->fcp_cmnd_dseg_address); 3495 3496 sp->flags |= SRB_FCP_CMND_DMA_VALID; 3497 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3498 /* Set total data segment count. */ 3499 cmd_pkt->entry_count = (uint8_t)req_cnt; 3500 /* Specify response queue number where 3501 * completion should happen 3502 */ 3503 cmd_pkt->entry_status = (uint8_t) rsp->id; 3504 } else { 3505 struct cmd_type_7 *cmd_pkt; 3506 3507 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3508 if (req->cnt < (req_cnt + 2)) { 3509 cnt = (uint16_t)rd_reg_dword_relaxed( 3510 ®->req_q_out[0]); 3511 if (req->ring_index < cnt) 3512 req->cnt = cnt - req->ring_index; 3513 else 3514 req->cnt = req->length - 3515 (req->ring_index - cnt); 3516 } 3517 if (req->cnt < (req_cnt + 2)) 3518 goto queuing_error; 3519 3520 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 3521 cmd_pkt->handle = make_handle(req->id, handle); 3522 3523 /* Zero out remaining portion of packet. */ 3524 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3525 clr_ptr = (uint32_t *)cmd_pkt + 2; 3526 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3527 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3528 3529 /* Set NPORT-ID and LUN number*/ 3530 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3531 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3532 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3533 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3534 cmd_pkt->vp_index = sp->vha->vp_idx; 3535 3536 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3537 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, 3538 sizeof(cmd_pkt->lun)); 3539 3540 /* Populate the FCP_PRIO. */ 3541 if (ha->flags.fcp_prio_enabled) 3542 cmd_pkt->task |= sp->fcport->fcp_prio << 3; 3543 3544 /* Load SCSI command packet. */ 3545 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 3546 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 3547 3548 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3549 3550 /* Build IOCB segments */ 3551 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 3552 3553 /* Set total data segment count. */ 3554 cmd_pkt->entry_count = (uint8_t)req_cnt; 3555 /* Specify response queue number where 3556 * completion should happen. 3557 */ 3558 cmd_pkt->entry_status = (uint8_t) rsp->id; 3559 3560 } 3561 /* Build command packet. */ 3562 req->current_outstanding_cmd = handle; 3563 req->outstanding_cmds[handle] = sp; 3564 sp->handle = handle; 3565 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 3566 req->cnt -= req_cnt; 3567 wmb(); 3568 3569 /* Adjust ring index. */ 3570 req->ring_index++; 3571 if (req->ring_index == req->length) { 3572 req->ring_index = 0; 3573 req->ring_ptr = req->ring; 3574 } else 3575 req->ring_ptr++; 3576 3577 sp->flags |= SRB_DMA_VALID; 3578 3579 /* Set chip new ring index. */ 3580 /* write, read and verify logic */ 3581 dbval = dbval | (req->id << 8) | (req->ring_index << 16); 3582 if (ql2xdbwr) 3583 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval); 3584 else { 3585 wrt_reg_dword(ha->nxdb_wr_ptr, dbval); 3586 wmb(); 3587 while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) { 3588 wrt_reg_dword(ha->nxdb_wr_ptr, dbval); 3589 wmb(); 3590 } 3591 } 3592 3593 /* Manage unprocessed RIO/ZIO commands in response queue. */ 3594 if (vha->flags.process_response_queue && 3595 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 3596 qla24xx_process_response_queue(vha, rsp); 3597 3598 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3599 return QLA_SUCCESS; 3600 3601 queuing_error_fcp_cmnd: 3602 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); 3603 queuing_error: 3604 if (tot_dsds) 3605 scsi_dma_unmap(cmd); 3606 3607 if (sp->u.scmd.crc_ctx) { 3608 mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool); 3609 sp->u.scmd.crc_ctx = NULL; 3610 } 3611 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3612 3613 return QLA_FUNCTION_FAILED; 3614 } 3615 3616 static void 3617 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) 3618 { 3619 struct srb_iocb *aio = &sp->u.iocb_cmd; 3620 scsi_qla_host_t *vha = sp->vha; 3621 struct req_que *req = sp->qpair->req; 3622 srb_t *orig_sp = sp->cmd_sp; 3623 3624 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); 3625 abt_iocb->entry_type = ABORT_IOCB_TYPE; 3626 abt_iocb->entry_count = 1; 3627 abt_iocb->handle = make_handle(req->id, sp->handle); 3628 if (sp->fcport) { 3629 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3630 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 3631 abt_iocb->port_id[1] = sp->fcport->d_id.b.area; 3632 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; 3633 } 3634 abt_iocb->handle_to_abort = 3635 make_handle(le16_to_cpu(aio->u.abt.req_que_no), 3636 aio->u.abt.cmd_hndl); 3637 abt_iocb->vp_index = vha->vp_idx; 3638 abt_iocb->req_que_no = aio->u.abt.req_que_no; 3639 3640 /* need to pass original sp */ 3641 if (orig_sp) 3642 qla_nvme_abort_set_option(abt_iocb, orig_sp); 3643 3644 /* Send the command to the firmware */ 3645 wmb(); 3646 } 3647 3648 static void 3649 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx) 3650 { 3651 int i, sz; 3652 3653 mbx->entry_type = MBX_IOCB_TYPE; 3654 mbx->handle = sp->handle; 3655 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb)); 3656 3657 for (i = 0; i < sz; i++) 3658 mbx->mb[i] = sp->u.iocb_cmd.u.mbx.out_mb[i]; 3659 } 3660 3661 static void 3662 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt) 3663 { 3664 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt; 3665 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg); 3666 ct_pkt->handle = sp->handle; 3667 } 3668 3669 static void qla2x00_send_notify_ack_iocb(srb_t *sp, 3670 struct nack_to_isp *nack) 3671 { 3672 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy; 3673 3674 nack->entry_type = NOTIFY_ACK_TYPE; 3675 nack->entry_count = 1; 3676 nack->ox_id = ntfy->ox_id; 3677 3678 nack->u.isp24.handle = sp->handle; 3679 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; 3680 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { 3681 nack->u.isp24.flags = ntfy->u.isp24.flags & 3682 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB); 3683 } 3684 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; 3685 nack->u.isp24.status = ntfy->u.isp24.status; 3686 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; 3687 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; 3688 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; 3689 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; 3690 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; 3691 nack->u.isp24.srr_flags = 0; 3692 nack->u.isp24.srr_reject_code = 0; 3693 nack->u.isp24.srr_reject_code_expl = 0; 3694 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; 3695 3696 if (ntfy->u.isp24.status_subcode == ELS_PLOGI && 3697 (le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP) && 3698 sp->vha->hw->flags.edif_enabled) { 3699 ql_dbg(ql_dbg_disc, sp->vha, 0x3074, 3700 "%s PLOGI NACK sent with FC SECURITY bit, hdl=%x, loopid=%x, to pid %06x\n", 3701 sp->name, sp->handle, sp->fcport->loop_id, 3702 sp->fcport->d_id.b24); 3703 nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP); 3704 } 3705 } 3706 3707 /* 3708 * Build NVME LS request 3709 */ 3710 static void 3711 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt) 3712 { 3713 struct srb_iocb *nvme; 3714 3715 nvme = &sp->u.iocb_cmd; 3716 cmd_pkt->entry_type = PT_LS4_REQUEST; 3717 cmd_pkt->entry_count = 1; 3718 cmd_pkt->control_flags = cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT); 3719 3720 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec); 3721 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3722 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 3723 3724 cmd_pkt->tx_dseg_count = cpu_to_le16(1); 3725 cmd_pkt->tx_byte_count = cpu_to_le32(nvme->u.nvme.cmd_len); 3726 cmd_pkt->dsd[0].length = cpu_to_le32(nvme->u.nvme.cmd_len); 3727 put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address); 3728 3729 cmd_pkt->rx_dseg_count = cpu_to_le16(1); 3730 cmd_pkt->rx_byte_count = cpu_to_le32(nvme->u.nvme.rsp_len); 3731 cmd_pkt->dsd[1].length = cpu_to_le32(nvme->u.nvme.rsp_len); 3732 put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address); 3733 } 3734 3735 static void 3736 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce) 3737 { 3738 int map, pos; 3739 3740 vce->entry_type = VP_CTRL_IOCB_TYPE; 3741 vce->handle = sp->handle; 3742 vce->entry_count = 1; 3743 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd); 3744 vce->vp_count = cpu_to_le16(1); 3745 3746 /* 3747 * index map in firmware starts with 1; decrement index 3748 * this is ok as we never use index 0 3749 */ 3750 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8; 3751 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7; 3752 vce->vp_idx_map[map] |= 1 << pos; 3753 } 3754 3755 static void 3756 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio) 3757 { 3758 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 3759 logio->control_flags = 3760 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO); 3761 3762 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3763 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 3764 logio->port_id[1] = sp->fcport->d_id.b.area; 3765 logio->port_id[2] = sp->fcport->d_id.b.domain; 3766 logio->vp_index = sp->fcport->vha->vp_idx; 3767 } 3768 3769 int 3770 qla2x00_start_sp(srb_t *sp) 3771 { 3772 int rval = QLA_SUCCESS; 3773 scsi_qla_host_t *vha = sp->vha; 3774 struct qla_hw_data *ha = vha->hw; 3775 struct qla_qpair *qp = sp->qpair; 3776 void *pkt; 3777 unsigned long flags; 3778 3779 if (vha->hw->flags.eeh_busy) 3780 return -EIO; 3781 3782 spin_lock_irqsave(qp->qp_lock_ptr, flags); 3783 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp); 3784 if (!pkt) { 3785 rval = EAGAIN; 3786 ql_log(ql_log_warn, vha, 0x700c, 3787 "qla2x00_alloc_iocbs failed.\n"); 3788 goto done; 3789 } 3790 3791 switch (sp->type) { 3792 case SRB_LOGIN_CMD: 3793 IS_FWI2_CAPABLE(ha) ? 3794 qla24xx_login_iocb(sp, pkt) : 3795 qla2x00_login_iocb(sp, pkt); 3796 break; 3797 case SRB_PRLI_CMD: 3798 qla24xx_prli_iocb(sp, pkt); 3799 break; 3800 case SRB_LOGOUT_CMD: 3801 IS_FWI2_CAPABLE(ha) ? 3802 qla24xx_logout_iocb(sp, pkt) : 3803 qla2x00_logout_iocb(sp, pkt); 3804 break; 3805 case SRB_ELS_CMD_RPT: 3806 case SRB_ELS_CMD_HST: 3807 qla24xx_els_iocb(sp, pkt); 3808 break; 3809 case SRB_ELS_CMD_HST_NOLOGIN: 3810 qla_els_pt_iocb(sp->vha, pkt, &sp->u.bsg_cmd.u.els_arg); 3811 ((struct els_entry_24xx *)pkt)->handle = sp->handle; 3812 break; 3813 case SRB_CT_CMD: 3814 IS_FWI2_CAPABLE(ha) ? 3815 qla24xx_ct_iocb(sp, pkt) : 3816 qla2x00_ct_iocb(sp, pkt); 3817 break; 3818 case SRB_ADISC_CMD: 3819 IS_FWI2_CAPABLE(ha) ? 3820 qla24xx_adisc_iocb(sp, pkt) : 3821 qla2x00_adisc_iocb(sp, pkt); 3822 break; 3823 case SRB_TM_CMD: 3824 IS_QLAFX00(ha) ? 3825 qlafx00_tm_iocb(sp, pkt) : 3826 qla24xx_tm_iocb(sp, pkt); 3827 break; 3828 case SRB_FXIOCB_DCMD: 3829 case SRB_FXIOCB_BCMD: 3830 qlafx00_fxdisc_iocb(sp, pkt); 3831 break; 3832 case SRB_NVME_LS: 3833 qla_nvme_ls(sp, pkt); 3834 break; 3835 case SRB_ABT_CMD: 3836 IS_QLAFX00(ha) ? 3837 qlafx00_abort_iocb(sp, pkt) : 3838 qla24xx_abort_iocb(sp, pkt); 3839 break; 3840 case SRB_ELS_DCMD: 3841 qla24xx_els_logo_iocb(sp, pkt); 3842 break; 3843 case SRB_CT_PTHRU_CMD: 3844 qla2x00_ctpthru_cmd_iocb(sp, pkt); 3845 break; 3846 case SRB_MB_IOCB: 3847 qla2x00_mb_iocb(sp, pkt); 3848 break; 3849 case SRB_NACK_PLOGI: 3850 case SRB_NACK_PRLI: 3851 case SRB_NACK_LOGO: 3852 qla2x00_send_notify_ack_iocb(sp, pkt); 3853 break; 3854 case SRB_CTRL_VP: 3855 qla25xx_ctrlvp_iocb(sp, pkt); 3856 break; 3857 case SRB_PRLO_CMD: 3858 qla24xx_prlo_iocb(sp, pkt); 3859 break; 3860 case SRB_SA_UPDATE: 3861 qla24xx_sa_update_iocb(sp, pkt); 3862 break; 3863 case SRB_SA_REPLACE: 3864 qla24xx_sa_replace_iocb(sp, pkt); 3865 break; 3866 default: 3867 break; 3868 } 3869 3870 if (sp->start_timer) 3871 add_timer(&sp->u.iocb_cmd.timer); 3872 3873 wmb(); 3874 qla2x00_start_iocbs(vha, qp->req); 3875 done: 3876 spin_unlock_irqrestore(qp->qp_lock_ptr, flags); 3877 return rval; 3878 } 3879 3880 static void 3881 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, 3882 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) 3883 { 3884 uint16_t avail_dsds; 3885 struct dsd64 *cur_dsd; 3886 uint32_t req_data_len = 0; 3887 uint32_t rsp_data_len = 0; 3888 struct scatterlist *sg; 3889 int index; 3890 int entry_count = 1; 3891 struct bsg_job *bsg_job = sp->u.bsg_job; 3892 3893 /*Update entry type to indicate bidir command */ 3894 put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type); 3895 3896 /* Set the transfer direction, in this set both flags 3897 * Also set the BD_WRAP_BACK flag, firmware will take care 3898 * assigning DID=SID for outgoing pkts. 3899 */ 3900 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3901 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3902 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | 3903 BD_WRAP_BACK); 3904 3905 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; 3906 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); 3907 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); 3908 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); 3909 3910 vha->bidi_stats.transfer_bytes += req_data_len; 3911 vha->bidi_stats.io_count++; 3912 3913 vha->qla_stats.output_bytes += req_data_len; 3914 vha->qla_stats.output_requests++; 3915 3916 /* Only one dsd is available for bidirectional IOCB, remaining dsds 3917 * are bundled in continuation iocb 3918 */ 3919 avail_dsds = 1; 3920 cur_dsd = &cmd_pkt->fcp_dsd; 3921 3922 index = 0; 3923 3924 for_each_sg(bsg_job->request_payload.sg_list, sg, 3925 bsg_job->request_payload.sg_cnt, index) { 3926 cont_a64_entry_t *cont_pkt; 3927 3928 /* Allocate additional continuation packets */ 3929 if (avail_dsds == 0) { 3930 /* Continuation type 1 IOCB can accomodate 3931 * 5 DSDS 3932 */ 3933 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3934 cur_dsd = cont_pkt->dsd; 3935 avail_dsds = 5; 3936 entry_count++; 3937 } 3938 append_dsd64(&cur_dsd, sg); 3939 avail_dsds--; 3940 } 3941 /* For read request DSD will always goes to continuation IOCB 3942 * and follow the write DSD. If there is room on the current IOCB 3943 * then it is added to that IOCB else new continuation IOCB is 3944 * allocated. 3945 */ 3946 for_each_sg(bsg_job->reply_payload.sg_list, sg, 3947 bsg_job->reply_payload.sg_cnt, index) { 3948 cont_a64_entry_t *cont_pkt; 3949 3950 /* Allocate additional continuation packets */ 3951 if (avail_dsds == 0) { 3952 /* Continuation type 1 IOCB can accomodate 3953 * 5 DSDS 3954 */ 3955 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3956 cur_dsd = cont_pkt->dsd; 3957 avail_dsds = 5; 3958 entry_count++; 3959 } 3960 append_dsd64(&cur_dsd, sg); 3961 avail_dsds--; 3962 } 3963 /* This value should be same as number of IOCB required for this cmd */ 3964 cmd_pkt->entry_count = entry_count; 3965 } 3966 3967 int 3968 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) 3969 { 3970 3971 struct qla_hw_data *ha = vha->hw; 3972 unsigned long flags; 3973 uint32_t handle; 3974 uint16_t req_cnt; 3975 uint16_t cnt; 3976 uint32_t *clr_ptr; 3977 struct cmd_bidir *cmd_pkt = NULL; 3978 struct rsp_que *rsp; 3979 struct req_que *req; 3980 int rval = EXT_STATUS_OK; 3981 3982 rval = QLA_SUCCESS; 3983 3984 rsp = ha->rsp_q_map[0]; 3985 req = vha->req; 3986 3987 /* Send marker if required */ 3988 if (vha->marker_needed != 0) { 3989 if (qla2x00_marker(vha, ha->base_qpair, 3990 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) 3991 return EXT_STATUS_MAILBOX; 3992 vha->marker_needed = 0; 3993 } 3994 3995 /* Acquire ring specific lock */ 3996 spin_lock_irqsave(&ha->hardware_lock, flags); 3997 3998 handle = qla2xxx_get_next_handle(req); 3999 if (handle == 0) { 4000 rval = EXT_STATUS_BUSY; 4001 goto queuing_error; 4002 } 4003 4004 /* Calculate number of IOCB required */ 4005 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 4006 4007 /* Check for room on request queue. */ 4008 if (req->cnt < req_cnt + 2) { 4009 if (IS_SHADOW_REG_CAPABLE(ha)) { 4010 cnt = *req->out_ptr; 4011 } else { 4012 cnt = rd_reg_dword_relaxed(req->req_q_out); 4013 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 4014 goto queuing_error; 4015 } 4016 4017 if (req->ring_index < cnt) 4018 req->cnt = cnt - req->ring_index; 4019 else 4020 req->cnt = req->length - 4021 (req->ring_index - cnt); 4022 } 4023 if (req->cnt < req_cnt + 2) { 4024 rval = EXT_STATUS_BUSY; 4025 goto queuing_error; 4026 } 4027 4028 cmd_pkt = (struct cmd_bidir *)req->ring_ptr; 4029 cmd_pkt->handle = make_handle(req->id, handle); 4030 4031 /* Zero out remaining portion of packet. */ 4032 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 4033 clr_ptr = (uint32_t *)cmd_pkt + 2; 4034 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 4035 4036 /* Set NPORT-ID (of vha)*/ 4037 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); 4038 cmd_pkt->port_id[0] = vha->d_id.b.al_pa; 4039 cmd_pkt->port_id[1] = vha->d_id.b.area; 4040 cmd_pkt->port_id[2] = vha->d_id.b.domain; 4041 4042 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); 4043 cmd_pkt->entry_status = (uint8_t) rsp->id; 4044 /* Build command packet. */ 4045 req->current_outstanding_cmd = handle; 4046 req->outstanding_cmds[handle] = sp; 4047 sp->handle = handle; 4048 req->cnt -= req_cnt; 4049 4050 /* Send the command to the firmware */ 4051 wmb(); 4052 qla2x00_start_iocbs(vha, req); 4053 queuing_error: 4054 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4055 4056 return rval; 4057 } 4058