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 if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE)) 1556 return qla28xx_start_scsi_edif(sp); 1557 1558 /* Setup device pointers. */ 1559 req = vha->req; 1560 rsp = req->rsp; 1561 1562 /* So we know we haven't pci_map'ed anything yet */ 1563 tot_dsds = 0; 1564 1565 /* Send marker if required */ 1566 if (vha->marker_needed != 0) { 1567 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 1568 QLA_SUCCESS) 1569 return QLA_FUNCTION_FAILED; 1570 vha->marker_needed = 0; 1571 } 1572 1573 /* Acquire ring specific lock */ 1574 spin_lock_irqsave(&ha->hardware_lock, flags); 1575 1576 handle = qla2xxx_get_next_handle(req); 1577 if (handle == 0) 1578 goto queuing_error; 1579 1580 /* Map the sg table so we have an accurate count of sg entries needed */ 1581 if (scsi_sg_count(cmd)) { 1582 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1583 scsi_sg_count(cmd), cmd->sc_data_direction); 1584 if (unlikely(!nseg)) 1585 goto queuing_error; 1586 } else 1587 nseg = 0; 1588 1589 tot_dsds = nseg; 1590 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1591 1592 sp->iores.res_type = RESOURCE_INI; 1593 sp->iores.iocb_cnt = req_cnt; 1594 if (qla_get_iocbs(sp->qpair, &sp->iores)) 1595 goto queuing_error; 1596 1597 if (req->cnt < (req_cnt + 2)) { 1598 if (IS_SHADOW_REG_CAPABLE(ha)) { 1599 cnt = *req->out_ptr; 1600 } else { 1601 cnt = rd_reg_dword_relaxed(req->req_q_out); 1602 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1603 goto queuing_error; 1604 } 1605 1606 if (req->ring_index < cnt) 1607 req->cnt = cnt - req->ring_index; 1608 else 1609 req->cnt = req->length - 1610 (req->ring_index - cnt); 1611 if (req->cnt < (req_cnt + 2)) 1612 goto queuing_error; 1613 } 1614 1615 /* Build command packet. */ 1616 req->current_outstanding_cmd = handle; 1617 req->outstanding_cmds[handle] = sp; 1618 sp->handle = handle; 1619 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1620 req->cnt -= req_cnt; 1621 1622 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1623 cmd_pkt->handle = make_handle(req->id, handle); 1624 1625 /* Zero out remaining portion of packet. */ 1626 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1627 clr_ptr = (uint32_t *)cmd_pkt + 2; 1628 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1629 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1630 1631 /* Set NPORT-ID and LUN number*/ 1632 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1633 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1634 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1635 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1636 cmd_pkt->vp_index = sp->vha->vp_idx; 1637 1638 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1639 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1640 1641 cmd_pkt->task = TSK_SIMPLE; 1642 1643 /* Load SCSI command packet. */ 1644 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 1645 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 1646 1647 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 1648 1649 /* Build IOCB segments */ 1650 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 1651 1652 /* Set total data segment count. */ 1653 cmd_pkt->entry_count = (uint8_t)req_cnt; 1654 wmb(); 1655 /* Adjust ring index. */ 1656 req->ring_index++; 1657 if (req->ring_index == req->length) { 1658 req->ring_index = 0; 1659 req->ring_ptr = req->ring; 1660 } else 1661 req->ring_ptr++; 1662 1663 sp->qpair->cmd_cnt++; 1664 sp->flags |= SRB_DMA_VALID; 1665 1666 /* Set chip new ring index. */ 1667 wrt_reg_dword(req->req_q_in, req->ring_index); 1668 1669 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1670 if (vha->flags.process_response_queue && 1671 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1672 qla24xx_process_response_queue(vha, rsp); 1673 1674 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1675 return QLA_SUCCESS; 1676 1677 queuing_error: 1678 if (tot_dsds) 1679 scsi_dma_unmap(cmd); 1680 1681 qla_put_iocbs(sp->qpair, &sp->iores); 1682 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1683 1684 return QLA_FUNCTION_FAILED; 1685 } 1686 1687 /** 1688 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP 1689 * @sp: command to send to the ISP 1690 * 1691 * Returns non-zero if a failure occurred, else zero. 1692 */ 1693 int 1694 qla24xx_dif_start_scsi(srb_t *sp) 1695 { 1696 int nseg; 1697 unsigned long flags; 1698 uint32_t *clr_ptr; 1699 uint32_t handle; 1700 uint16_t cnt; 1701 uint16_t req_cnt = 0; 1702 uint16_t tot_dsds; 1703 uint16_t tot_prot_dsds; 1704 uint16_t fw_prot_opts = 0; 1705 struct req_que *req = NULL; 1706 struct rsp_que *rsp = NULL; 1707 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1708 struct scsi_qla_host *vha = sp->vha; 1709 struct qla_hw_data *ha = vha->hw; 1710 struct cmd_type_crc_2 *cmd_pkt; 1711 uint32_t status = 0; 1712 1713 #define QDSS_GOT_Q_SPACE BIT_0 1714 1715 /* Only process protection or >16 cdb in this routine */ 1716 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 1717 if (cmd->cmd_len <= 16) 1718 return qla24xx_start_scsi(sp); 1719 } 1720 1721 /* Setup device pointers. */ 1722 req = vha->req; 1723 rsp = req->rsp; 1724 1725 /* So we know we haven't pci_map'ed anything yet */ 1726 tot_dsds = 0; 1727 1728 /* Send marker if required */ 1729 if (vha->marker_needed != 0) { 1730 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 1731 QLA_SUCCESS) 1732 return QLA_FUNCTION_FAILED; 1733 vha->marker_needed = 0; 1734 } 1735 1736 /* Acquire ring specific lock */ 1737 spin_lock_irqsave(&ha->hardware_lock, flags); 1738 1739 handle = qla2xxx_get_next_handle(req); 1740 if (handle == 0) 1741 goto queuing_error; 1742 1743 /* Compute number of required data segments */ 1744 /* Map the sg table so we have an accurate count of sg entries needed */ 1745 if (scsi_sg_count(cmd)) { 1746 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1747 scsi_sg_count(cmd), cmd->sc_data_direction); 1748 if (unlikely(!nseg)) 1749 goto queuing_error; 1750 else 1751 sp->flags |= SRB_DMA_VALID; 1752 1753 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1754 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1755 struct qla2_sgx sgx; 1756 uint32_t partial; 1757 1758 memset(&sgx, 0, sizeof(struct qla2_sgx)); 1759 sgx.tot_bytes = scsi_bufflen(cmd); 1760 sgx.cur_sg = scsi_sglist(cmd); 1761 sgx.sp = sp; 1762 1763 nseg = 0; 1764 while (qla24xx_get_one_block_sg( 1765 cmd->device->sector_size, &sgx, &partial)) 1766 nseg++; 1767 } 1768 } else 1769 nseg = 0; 1770 1771 /* number of required data segments */ 1772 tot_dsds = nseg; 1773 1774 /* Compute number of required protection segments */ 1775 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 1776 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 1777 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 1778 if (unlikely(!nseg)) 1779 goto queuing_error; 1780 else 1781 sp->flags |= SRB_CRC_PROT_DMA_VALID; 1782 1783 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1784 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1785 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 1786 } 1787 } else { 1788 nseg = 0; 1789 } 1790 1791 req_cnt = 1; 1792 /* Total Data and protection sg segment(s) */ 1793 tot_prot_dsds = nseg; 1794 tot_dsds += nseg; 1795 1796 sp->iores.res_type = RESOURCE_INI; 1797 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1798 if (qla_get_iocbs(sp->qpair, &sp->iores)) 1799 goto queuing_error; 1800 1801 if (req->cnt < (req_cnt + 2)) { 1802 if (IS_SHADOW_REG_CAPABLE(ha)) { 1803 cnt = *req->out_ptr; 1804 } else { 1805 cnt = rd_reg_dword_relaxed(req->req_q_out); 1806 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1807 goto queuing_error; 1808 } 1809 if (req->ring_index < cnt) 1810 req->cnt = cnt - req->ring_index; 1811 else 1812 req->cnt = req->length - 1813 (req->ring_index - cnt); 1814 if (req->cnt < (req_cnt + 2)) 1815 goto queuing_error; 1816 } 1817 1818 status |= QDSS_GOT_Q_SPACE; 1819 1820 /* Build header part of command packet (excluding the OPCODE). */ 1821 req->current_outstanding_cmd = handle; 1822 req->outstanding_cmds[handle] = sp; 1823 sp->handle = handle; 1824 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1825 req->cnt -= req_cnt; 1826 1827 /* Fill-in common area */ 1828 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 1829 cmd_pkt->handle = make_handle(req->id, handle); 1830 1831 clr_ptr = (uint32_t *)cmd_pkt + 2; 1832 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1833 1834 /* Set NPORT-ID and LUN number*/ 1835 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1836 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1837 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1838 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1839 1840 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1841 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1842 1843 /* Total Data and protection segment(s) */ 1844 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1845 1846 /* Build IOCB segments and adjust for data protection segments */ 1847 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 1848 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 1849 QLA_SUCCESS) 1850 goto queuing_error; 1851 1852 cmd_pkt->entry_count = (uint8_t)req_cnt; 1853 /* Specify response queue number where completion should happen */ 1854 cmd_pkt->entry_status = (uint8_t) rsp->id; 1855 cmd_pkt->timeout = cpu_to_le16(0); 1856 wmb(); 1857 1858 /* Adjust ring index. */ 1859 req->ring_index++; 1860 if (req->ring_index == req->length) { 1861 req->ring_index = 0; 1862 req->ring_ptr = req->ring; 1863 } else 1864 req->ring_ptr++; 1865 1866 sp->qpair->cmd_cnt++; 1867 /* Set chip new ring index. */ 1868 wrt_reg_dword(req->req_q_in, req->ring_index); 1869 1870 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1871 if (vha->flags.process_response_queue && 1872 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1873 qla24xx_process_response_queue(vha, rsp); 1874 1875 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1876 1877 return QLA_SUCCESS; 1878 1879 queuing_error: 1880 if (status & QDSS_GOT_Q_SPACE) { 1881 req->outstanding_cmds[handle] = NULL; 1882 req->cnt += req_cnt; 1883 } 1884 /* Cleanup will be performed by the caller (queuecommand) */ 1885 1886 qla_put_iocbs(sp->qpair, &sp->iores); 1887 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1888 1889 return QLA_FUNCTION_FAILED; 1890 } 1891 1892 /** 1893 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP 1894 * @sp: command to send to the ISP 1895 * 1896 * Returns non-zero if a failure occurred, else zero. 1897 */ 1898 static int 1899 qla2xxx_start_scsi_mq(srb_t *sp) 1900 { 1901 int nseg; 1902 unsigned long flags; 1903 uint32_t *clr_ptr; 1904 uint32_t handle; 1905 struct cmd_type_7 *cmd_pkt; 1906 uint16_t cnt; 1907 uint16_t req_cnt; 1908 uint16_t tot_dsds; 1909 struct req_que *req = NULL; 1910 struct rsp_que *rsp; 1911 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1912 struct scsi_qla_host *vha = sp->fcport->vha; 1913 struct qla_hw_data *ha = vha->hw; 1914 struct qla_qpair *qpair = sp->qpair; 1915 1916 if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE)) 1917 return qla28xx_start_scsi_edif(sp); 1918 1919 /* Acquire qpair specific lock */ 1920 spin_lock_irqsave(&qpair->qp_lock, flags); 1921 1922 /* Setup qpair pointers */ 1923 req = qpair->req; 1924 rsp = qpair->rsp; 1925 1926 /* So we know we haven't pci_map'ed anything yet */ 1927 tot_dsds = 0; 1928 1929 /* Send marker if required */ 1930 if (vha->marker_needed != 0) { 1931 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != 1932 QLA_SUCCESS) { 1933 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1934 return QLA_FUNCTION_FAILED; 1935 } 1936 vha->marker_needed = 0; 1937 } 1938 1939 handle = qla2xxx_get_next_handle(req); 1940 if (handle == 0) 1941 goto queuing_error; 1942 1943 /* Map the sg table so we have an accurate count of sg entries needed */ 1944 if (scsi_sg_count(cmd)) { 1945 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1946 scsi_sg_count(cmd), cmd->sc_data_direction); 1947 if (unlikely(!nseg)) 1948 goto queuing_error; 1949 } else 1950 nseg = 0; 1951 1952 tot_dsds = nseg; 1953 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1954 1955 sp->iores.res_type = RESOURCE_INI; 1956 sp->iores.iocb_cnt = req_cnt; 1957 if (qla_get_iocbs(sp->qpair, &sp->iores)) 1958 goto queuing_error; 1959 1960 if (req->cnt < (req_cnt + 2)) { 1961 if (IS_SHADOW_REG_CAPABLE(ha)) { 1962 cnt = *req->out_ptr; 1963 } else { 1964 cnt = rd_reg_dword_relaxed(req->req_q_out); 1965 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1966 goto queuing_error; 1967 } 1968 1969 if (req->ring_index < cnt) 1970 req->cnt = cnt - req->ring_index; 1971 else 1972 req->cnt = req->length - 1973 (req->ring_index - cnt); 1974 if (req->cnt < (req_cnt + 2)) 1975 goto queuing_error; 1976 } 1977 1978 /* Build command packet. */ 1979 req->current_outstanding_cmd = handle; 1980 req->outstanding_cmds[handle] = sp; 1981 sp->handle = handle; 1982 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1983 req->cnt -= req_cnt; 1984 1985 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1986 cmd_pkt->handle = make_handle(req->id, handle); 1987 1988 /* Zero out remaining portion of packet. */ 1989 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1990 clr_ptr = (uint32_t *)cmd_pkt + 2; 1991 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1992 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1993 1994 /* Set NPORT-ID and LUN number*/ 1995 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1996 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1997 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1998 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1999 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 2000 2001 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 2002 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2003 2004 cmd_pkt->task = TSK_SIMPLE; 2005 2006 /* Load SCSI command packet. */ 2007 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 2008 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 2009 2010 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 2011 2012 /* Build IOCB segments */ 2013 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 2014 2015 /* Set total data segment count. */ 2016 cmd_pkt->entry_count = (uint8_t)req_cnt; 2017 wmb(); 2018 /* Adjust ring index. */ 2019 req->ring_index++; 2020 if (req->ring_index == req->length) { 2021 req->ring_index = 0; 2022 req->ring_ptr = req->ring; 2023 } else 2024 req->ring_ptr++; 2025 2026 sp->qpair->cmd_cnt++; 2027 sp->flags |= SRB_DMA_VALID; 2028 2029 /* Set chip new ring index. */ 2030 wrt_reg_dword(req->req_q_in, req->ring_index); 2031 2032 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2033 if (vha->flags.process_response_queue && 2034 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2035 qla24xx_process_response_queue(vha, rsp); 2036 2037 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2038 return QLA_SUCCESS; 2039 2040 queuing_error: 2041 if (tot_dsds) 2042 scsi_dma_unmap(cmd); 2043 2044 qla_put_iocbs(sp->qpair, &sp->iores); 2045 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2046 2047 return QLA_FUNCTION_FAILED; 2048 } 2049 2050 2051 /** 2052 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP 2053 * @sp: command to send to the ISP 2054 * 2055 * Returns non-zero if a failure occurred, else zero. 2056 */ 2057 int 2058 qla2xxx_dif_start_scsi_mq(srb_t *sp) 2059 { 2060 int nseg; 2061 unsigned long flags; 2062 uint32_t *clr_ptr; 2063 uint32_t handle; 2064 uint16_t cnt; 2065 uint16_t req_cnt = 0; 2066 uint16_t tot_dsds; 2067 uint16_t tot_prot_dsds; 2068 uint16_t fw_prot_opts = 0; 2069 struct req_que *req = NULL; 2070 struct rsp_que *rsp = NULL; 2071 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 2072 struct scsi_qla_host *vha = sp->fcport->vha; 2073 struct qla_hw_data *ha = vha->hw; 2074 struct cmd_type_crc_2 *cmd_pkt; 2075 uint32_t status = 0; 2076 struct qla_qpair *qpair = sp->qpair; 2077 2078 #define QDSS_GOT_Q_SPACE BIT_0 2079 2080 /* Check for host side state */ 2081 if (!qpair->online) { 2082 cmd->result = DID_NO_CONNECT << 16; 2083 return QLA_INTERFACE_ERROR; 2084 } 2085 2086 if (!qpair->difdix_supported && 2087 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { 2088 cmd->result = DID_NO_CONNECT << 16; 2089 return QLA_INTERFACE_ERROR; 2090 } 2091 2092 /* Only process protection or >16 cdb in this routine */ 2093 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 2094 if (cmd->cmd_len <= 16) 2095 return qla2xxx_start_scsi_mq(sp); 2096 } 2097 2098 spin_lock_irqsave(&qpair->qp_lock, flags); 2099 2100 /* Setup qpair pointers */ 2101 rsp = qpair->rsp; 2102 req = qpair->req; 2103 2104 /* So we know we haven't pci_map'ed anything yet */ 2105 tot_dsds = 0; 2106 2107 /* Send marker if required */ 2108 if (vha->marker_needed != 0) { 2109 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != 2110 QLA_SUCCESS) { 2111 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2112 return QLA_FUNCTION_FAILED; 2113 } 2114 vha->marker_needed = 0; 2115 } 2116 2117 handle = qla2xxx_get_next_handle(req); 2118 if (handle == 0) 2119 goto queuing_error; 2120 2121 /* Compute number of required data segments */ 2122 /* Map the sg table so we have an accurate count of sg entries needed */ 2123 if (scsi_sg_count(cmd)) { 2124 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 2125 scsi_sg_count(cmd), cmd->sc_data_direction); 2126 if (unlikely(!nseg)) 2127 goto queuing_error; 2128 else 2129 sp->flags |= SRB_DMA_VALID; 2130 2131 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2132 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2133 struct qla2_sgx sgx; 2134 uint32_t partial; 2135 2136 memset(&sgx, 0, sizeof(struct qla2_sgx)); 2137 sgx.tot_bytes = scsi_bufflen(cmd); 2138 sgx.cur_sg = scsi_sglist(cmd); 2139 sgx.sp = sp; 2140 2141 nseg = 0; 2142 while (qla24xx_get_one_block_sg( 2143 cmd->device->sector_size, &sgx, &partial)) 2144 nseg++; 2145 } 2146 } else 2147 nseg = 0; 2148 2149 /* number of required data segments */ 2150 tot_dsds = nseg; 2151 2152 /* Compute number of required protection segments */ 2153 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 2154 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 2155 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 2156 if (unlikely(!nseg)) 2157 goto queuing_error; 2158 else 2159 sp->flags |= SRB_CRC_PROT_DMA_VALID; 2160 2161 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2162 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2163 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 2164 } 2165 } else { 2166 nseg = 0; 2167 } 2168 2169 req_cnt = 1; 2170 /* Total Data and protection sg segment(s) */ 2171 tot_prot_dsds = nseg; 2172 tot_dsds += nseg; 2173 2174 sp->iores.res_type = RESOURCE_INI; 2175 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 2176 if (qla_get_iocbs(sp->qpair, &sp->iores)) 2177 goto queuing_error; 2178 2179 if (req->cnt < (req_cnt + 2)) { 2180 if (IS_SHADOW_REG_CAPABLE(ha)) { 2181 cnt = *req->out_ptr; 2182 } else { 2183 cnt = rd_reg_dword_relaxed(req->req_q_out); 2184 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 2185 goto queuing_error; 2186 } 2187 2188 if (req->ring_index < cnt) 2189 req->cnt = cnt - req->ring_index; 2190 else 2191 req->cnt = req->length - 2192 (req->ring_index - cnt); 2193 if (req->cnt < (req_cnt + 2)) 2194 goto queuing_error; 2195 } 2196 2197 status |= QDSS_GOT_Q_SPACE; 2198 2199 /* Build header part of command packet (excluding the OPCODE). */ 2200 req->current_outstanding_cmd = handle; 2201 req->outstanding_cmds[handle] = sp; 2202 sp->handle = handle; 2203 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 2204 req->cnt -= req_cnt; 2205 2206 /* Fill-in common area */ 2207 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 2208 cmd_pkt->handle = make_handle(req->id, handle); 2209 2210 clr_ptr = (uint32_t *)cmd_pkt + 2; 2211 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 2212 2213 /* Set NPORT-ID and LUN number*/ 2214 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2215 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2216 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2217 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2218 2219 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 2220 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2221 2222 /* Total Data and protection segment(s) */ 2223 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 2224 2225 /* Build IOCB segments and adjust for data protection segments */ 2226 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 2227 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 2228 QLA_SUCCESS) 2229 goto queuing_error; 2230 2231 cmd_pkt->entry_count = (uint8_t)req_cnt; 2232 cmd_pkt->timeout = cpu_to_le16(0); 2233 wmb(); 2234 2235 /* Adjust ring index. */ 2236 req->ring_index++; 2237 if (req->ring_index == req->length) { 2238 req->ring_index = 0; 2239 req->ring_ptr = req->ring; 2240 } else 2241 req->ring_ptr++; 2242 2243 sp->qpair->cmd_cnt++; 2244 /* Set chip new ring index. */ 2245 wrt_reg_dword(req->req_q_in, req->ring_index); 2246 2247 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2248 if (vha->flags.process_response_queue && 2249 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2250 qla24xx_process_response_queue(vha, rsp); 2251 2252 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2253 2254 return QLA_SUCCESS; 2255 2256 queuing_error: 2257 if (status & QDSS_GOT_Q_SPACE) { 2258 req->outstanding_cmds[handle] = NULL; 2259 req->cnt += req_cnt; 2260 } 2261 /* Cleanup will be performed by the caller (queuecommand) */ 2262 2263 qla_put_iocbs(sp->qpair, &sp->iores); 2264 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2265 2266 return QLA_FUNCTION_FAILED; 2267 } 2268 2269 /* Generic Control-SRB manipulation functions. */ 2270 2271 /* hardware_lock assumed to be held. */ 2272 2273 void * 2274 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp) 2275 { 2276 scsi_qla_host_t *vha = qpair->vha; 2277 struct qla_hw_data *ha = vha->hw; 2278 struct req_que *req = qpair->req; 2279 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 2280 uint32_t handle; 2281 request_t *pkt; 2282 uint16_t cnt, req_cnt; 2283 2284 pkt = NULL; 2285 req_cnt = 1; 2286 handle = 0; 2287 2288 if (sp && (sp->type != SRB_SCSI_CMD)) { 2289 /* Adjust entry-counts as needed. */ 2290 req_cnt = sp->iocbs; 2291 } 2292 2293 /* Check for room on request queue. */ 2294 if (req->cnt < req_cnt + 2) { 2295 if (qpair->use_shadow_reg) 2296 cnt = *req->out_ptr; 2297 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) || 2298 IS_QLA28XX(ha)) 2299 cnt = rd_reg_dword(®->isp25mq.req_q_out); 2300 else if (IS_P3P_TYPE(ha)) 2301 cnt = rd_reg_dword(reg->isp82.req_q_out); 2302 else if (IS_FWI2_CAPABLE(ha)) 2303 cnt = rd_reg_dword(®->isp24.req_q_out); 2304 else if (IS_QLAFX00(ha)) 2305 cnt = rd_reg_dword(®->ispfx00.req_q_out); 2306 else 2307 cnt = qla2x00_debounce_register( 2308 ISP_REQ_Q_OUT(ha, ®->isp)); 2309 2310 if (!qpair->use_shadow_reg && cnt == ISP_REG16_DISCONNECT) { 2311 qla_schedule_eeh_work(vha); 2312 return NULL; 2313 } 2314 2315 if (req->ring_index < cnt) 2316 req->cnt = cnt - req->ring_index; 2317 else 2318 req->cnt = req->length - 2319 (req->ring_index - cnt); 2320 } 2321 if (req->cnt < req_cnt + 2) 2322 goto queuing_error; 2323 2324 if (sp) { 2325 handle = qla2xxx_get_next_handle(req); 2326 if (handle == 0) { 2327 ql_log(ql_log_warn, vha, 0x700b, 2328 "No room on outstanding cmd array.\n"); 2329 goto queuing_error; 2330 } 2331 2332 /* Prep command array. */ 2333 req->current_outstanding_cmd = handle; 2334 req->outstanding_cmds[handle] = sp; 2335 sp->handle = handle; 2336 } 2337 2338 /* Prep packet */ 2339 req->cnt -= req_cnt; 2340 pkt = req->ring_ptr; 2341 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2342 if (IS_QLAFX00(ha)) { 2343 wrt_reg_byte((u8 __force __iomem *)&pkt->entry_count, req_cnt); 2344 wrt_reg_dword((__le32 __force __iomem *)&pkt->handle, handle); 2345 } else { 2346 pkt->entry_count = req_cnt; 2347 pkt->handle = handle; 2348 } 2349 2350 return pkt; 2351 2352 queuing_error: 2353 qpair->tgt_counters.num_alloc_iocb_failed++; 2354 return pkt; 2355 } 2356 2357 void * 2358 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp) 2359 { 2360 scsi_qla_host_t *vha = qpair->vha; 2361 2362 if (qla2x00_reset_active(vha)) 2363 return NULL; 2364 2365 return __qla2x00_alloc_iocbs(qpair, sp); 2366 } 2367 2368 void * 2369 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp) 2370 { 2371 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp); 2372 } 2373 2374 static void 2375 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2376 { 2377 struct srb_iocb *lio = &sp->u.iocb_cmd; 2378 2379 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2380 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2381 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) { 2382 logio->control_flags |= cpu_to_le16(LCF_NVME_PRLI); 2383 if (sp->vha->flags.nvme_first_burst) 2384 logio->io_parameter[0] = 2385 cpu_to_le32(NVME_PRLI_SP_FIRST_BURST); 2386 if (sp->vha->flags.nvme2_enabled) { 2387 /* Set service parameter BIT_7 for NVME CONF support */ 2388 logio->io_parameter[0] |= 2389 cpu_to_le32(NVME_PRLI_SP_CONF); 2390 /* Set service parameter BIT_8 for SLER support */ 2391 logio->io_parameter[0] |= 2392 cpu_to_le32(NVME_PRLI_SP_SLER); 2393 /* Set service parameter BIT_9 for PI control support */ 2394 logio->io_parameter[0] |= 2395 cpu_to_le32(NVME_PRLI_SP_PI_CTRL); 2396 } 2397 } 2398 2399 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2400 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2401 logio->port_id[1] = sp->fcport->d_id.b.area; 2402 logio->port_id[2] = sp->fcport->d_id.b.domain; 2403 logio->vp_index = sp->vha->vp_idx; 2404 } 2405 2406 static void 2407 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2408 { 2409 struct srb_iocb *lio = &sp->u.iocb_cmd; 2410 2411 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2412 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2413 2414 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) { 2415 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2416 } else { 2417 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2418 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) 2419 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); 2420 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) 2421 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); 2422 if (lio->u.logio.flags & SRB_LOGIN_FCSP) { 2423 logio->control_flags |= 2424 cpu_to_le16(LCF_COMMON_FEAT | LCF_SKIP_PRLI); 2425 logio->io_parameter[0] = 2426 cpu_to_le32(LIO_COMM_FEAT_FCSP | LIO_COMM_FEAT_CIO); 2427 } 2428 } 2429 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2430 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2431 logio->port_id[1] = sp->fcport->d_id.b.area; 2432 logio->port_id[2] = sp->fcport->d_id.b.domain; 2433 logio->vp_index = sp->vha->vp_idx; 2434 } 2435 2436 static void 2437 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) 2438 { 2439 struct qla_hw_data *ha = sp->vha->hw; 2440 struct srb_iocb *lio = &sp->u.iocb_cmd; 2441 uint16_t opts; 2442 2443 mbx->entry_type = MBX_IOCB_TYPE; 2444 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2445 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); 2446 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; 2447 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; 2448 if (HAS_EXTENDED_IDS(ha)) { 2449 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2450 mbx->mb10 = cpu_to_le16(opts); 2451 } else { 2452 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); 2453 } 2454 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2455 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2456 sp->fcport->d_id.b.al_pa); 2457 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2458 } 2459 2460 static void 2461 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2462 { 2463 u16 control_flags = LCF_COMMAND_LOGO; 2464 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2465 2466 if (sp->fcport->explicit_logout) { 2467 control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT; 2468 } else { 2469 control_flags |= LCF_IMPL_LOGO; 2470 2471 if (!sp->fcport->keep_nport_handle) 2472 control_flags |= LCF_FREE_NPORT; 2473 } 2474 2475 logio->control_flags = cpu_to_le16(control_flags); 2476 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2477 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2478 logio->port_id[1] = sp->fcport->d_id.b.area; 2479 logio->port_id[2] = sp->fcport->d_id.b.domain; 2480 logio->vp_index = sp->vha->vp_idx; 2481 } 2482 2483 static void 2484 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) 2485 { 2486 struct qla_hw_data *ha = sp->vha->hw; 2487 2488 mbx->entry_type = MBX_IOCB_TYPE; 2489 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2490 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); 2491 mbx->mb1 = HAS_EXTENDED_IDS(ha) ? 2492 cpu_to_le16(sp->fcport->loop_id) : 2493 cpu_to_le16(sp->fcport->loop_id << 8); 2494 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2495 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2496 sp->fcport->d_id.b.al_pa); 2497 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2498 /* Implicit: mbx->mbx10 = 0. */ 2499 } 2500 2501 static void 2502 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2503 { 2504 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2505 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); 2506 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2507 logio->vp_index = sp->vha->vp_idx; 2508 } 2509 2510 static void 2511 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) 2512 { 2513 struct qla_hw_data *ha = sp->vha->hw; 2514 2515 mbx->entry_type = MBX_IOCB_TYPE; 2516 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2517 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); 2518 if (HAS_EXTENDED_IDS(ha)) { 2519 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2520 mbx->mb10 = cpu_to_le16(BIT_0); 2521 } else { 2522 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); 2523 } 2524 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); 2525 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); 2526 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); 2527 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); 2528 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2529 } 2530 2531 static void 2532 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) 2533 { 2534 uint32_t flags; 2535 uint64_t lun; 2536 struct fc_port *fcport = sp->fcport; 2537 scsi_qla_host_t *vha = fcport->vha; 2538 struct qla_hw_data *ha = vha->hw; 2539 struct srb_iocb *iocb = &sp->u.iocb_cmd; 2540 struct req_que *req = vha->req; 2541 2542 flags = iocb->u.tmf.flags; 2543 lun = iocb->u.tmf.lun; 2544 2545 tsk->entry_type = TSK_MGMT_IOCB_TYPE; 2546 tsk->entry_count = 1; 2547 tsk->handle = make_handle(req->id, tsk->handle); 2548 tsk->nport_handle = cpu_to_le16(fcport->loop_id); 2549 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); 2550 tsk->control_flags = cpu_to_le32(flags); 2551 tsk->port_id[0] = fcport->d_id.b.al_pa; 2552 tsk->port_id[1] = fcport->d_id.b.area; 2553 tsk->port_id[2] = fcport->d_id.b.domain; 2554 tsk->vp_index = fcport->vha->vp_idx; 2555 2556 if (flags == TCF_LUN_RESET) { 2557 int_to_scsilun(lun, &tsk->lun); 2558 host_to_fcp_swap((uint8_t *)&tsk->lun, 2559 sizeof(tsk->lun)); 2560 } 2561 } 2562 2563 static void 2564 qla2x00_async_done(struct srb *sp, int res) 2565 { 2566 if (del_timer(&sp->u.iocb_cmd.timer)) { 2567 /* 2568 * Successfully cancelled the timeout handler 2569 * ref: TMR 2570 */ 2571 if (kref_put(&sp->cmd_kref, qla2x00_sp_release)) 2572 return; 2573 } 2574 sp->async_done(sp, res); 2575 } 2576 2577 void 2578 qla2x00_sp_release(struct kref *kref) 2579 { 2580 struct srb *sp = container_of(kref, struct srb, cmd_kref); 2581 2582 sp->free(sp); 2583 } 2584 2585 void 2586 qla2x00_init_async_sp(srb_t *sp, unsigned long tmo, 2587 void (*done)(struct srb *sp, int res)) 2588 { 2589 timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0); 2590 sp->done = qla2x00_async_done; 2591 sp->async_done = done; 2592 sp->free = qla2x00_sp_free; 2593 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; 2594 sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ; 2595 if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD) 2596 init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp); 2597 sp->start_timer = 1; 2598 } 2599 2600 static void qla2x00_els_dcmd_sp_free(srb_t *sp) 2601 { 2602 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2603 2604 kfree(sp->fcport); 2605 2606 if (elsio->u.els_logo.els_logo_pyld) 2607 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, 2608 elsio->u.els_logo.els_logo_pyld, 2609 elsio->u.els_logo.els_logo_pyld_dma); 2610 2611 del_timer(&elsio->timer); 2612 qla2x00_rel_sp(sp); 2613 } 2614 2615 static void 2616 qla2x00_els_dcmd_iocb_timeout(void *data) 2617 { 2618 srb_t *sp = data; 2619 fc_port_t *fcport = sp->fcport; 2620 struct scsi_qla_host *vha = sp->vha; 2621 struct srb_iocb *lio = &sp->u.iocb_cmd; 2622 unsigned long flags = 0; 2623 int res, h; 2624 2625 ql_dbg(ql_dbg_io, vha, 0x3069, 2626 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n", 2627 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, 2628 fcport->d_id.b.al_pa); 2629 2630 /* Abort the exchange */ 2631 res = qla24xx_async_abort_cmd(sp, false); 2632 if (res) { 2633 ql_dbg(ql_dbg_io, vha, 0x3070, 2634 "mbx abort_command failed.\n"); 2635 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); 2636 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { 2637 if (sp->qpair->req->outstanding_cmds[h] == sp) { 2638 sp->qpair->req->outstanding_cmds[h] = NULL; 2639 break; 2640 } 2641 } 2642 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); 2643 complete(&lio->u.els_logo.comp); 2644 } else { 2645 ql_dbg(ql_dbg_io, vha, 0x3071, 2646 "mbx abort_command success.\n"); 2647 } 2648 } 2649 2650 static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res) 2651 { 2652 fc_port_t *fcport = sp->fcport; 2653 struct srb_iocb *lio = &sp->u.iocb_cmd; 2654 struct scsi_qla_host *vha = sp->vha; 2655 2656 ql_dbg(ql_dbg_io, vha, 0x3072, 2657 "%s hdl=%x, portid=%02x%02x%02x done\n", 2658 sp->name, sp->handle, fcport->d_id.b.domain, 2659 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2660 2661 complete(&lio->u.els_logo.comp); 2662 } 2663 2664 int 2665 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, 2666 port_id_t remote_did) 2667 { 2668 srb_t *sp; 2669 fc_port_t *fcport = NULL; 2670 struct srb_iocb *elsio = NULL; 2671 struct qla_hw_data *ha = vha->hw; 2672 struct els_logo_payload logo_pyld; 2673 int rval = QLA_SUCCESS; 2674 2675 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); 2676 if (!fcport) { 2677 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n"); 2678 return -ENOMEM; 2679 } 2680 2681 /* Alloc SRB structure 2682 * ref: INIT 2683 */ 2684 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2685 if (!sp) { 2686 kfree(fcport); 2687 ql_log(ql_log_info, vha, 0x70e6, 2688 "SRB allocation failed\n"); 2689 return -ENOMEM; 2690 } 2691 2692 elsio = &sp->u.iocb_cmd; 2693 fcport->loop_id = 0xFFFF; 2694 fcport->d_id.b.domain = remote_did.b.domain; 2695 fcport->d_id.b.area = remote_did.b.area; 2696 fcport->d_id.b.al_pa = remote_did.b.al_pa; 2697 2698 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n", 2699 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); 2700 2701 sp->type = SRB_ELS_DCMD; 2702 sp->name = "ELS_DCMD"; 2703 sp->fcport = fcport; 2704 qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT, 2705 qla2x00_els_dcmd_sp_done); 2706 sp->free = qla2x00_els_dcmd_sp_free; 2707 sp->u.iocb_cmd.timeout = qla2x00_els_dcmd_iocb_timeout; 2708 init_completion(&sp->u.iocb_cmd.u.els_logo.comp); 2709 2710 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev, 2711 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma, 2712 GFP_KERNEL); 2713 2714 if (!elsio->u.els_logo.els_logo_pyld) { 2715 /* ref: INIT */ 2716 kref_put(&sp->cmd_kref, qla2x00_sp_release); 2717 return QLA_FUNCTION_FAILED; 2718 } 2719 2720 memset(&logo_pyld, 0, sizeof(struct els_logo_payload)); 2721 2722 elsio->u.els_logo.els_cmd = els_opcode; 2723 logo_pyld.opcode = els_opcode; 2724 logo_pyld.s_id[0] = vha->d_id.b.al_pa; 2725 logo_pyld.s_id[1] = vha->d_id.b.area; 2726 logo_pyld.s_id[2] = vha->d_id.b.domain; 2727 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t)); 2728 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE); 2729 2730 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld, 2731 sizeof(struct els_logo_payload)); 2732 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:"); 2733 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a, 2734 elsio->u.els_logo.els_logo_pyld, 2735 sizeof(*elsio->u.els_logo.els_logo_pyld)); 2736 2737 rval = qla2x00_start_sp(sp); 2738 if (rval != QLA_SUCCESS) { 2739 /* ref: INIT */ 2740 kref_put(&sp->cmd_kref, qla2x00_sp_release); 2741 return QLA_FUNCTION_FAILED; 2742 } 2743 2744 ql_dbg(ql_dbg_io, vha, 0x3074, 2745 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n", 2746 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain, 2747 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2748 2749 wait_for_completion(&elsio->u.els_logo.comp); 2750 2751 /* ref: INIT */ 2752 kref_put(&sp->cmd_kref, qla2x00_sp_release); 2753 return rval; 2754 } 2755 2756 static void 2757 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 2758 { 2759 scsi_qla_host_t *vha = sp->vha; 2760 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2761 2762 els_iocb->entry_type = ELS_IOCB_TYPE; 2763 els_iocb->entry_count = 1; 2764 els_iocb->sys_define = 0; 2765 els_iocb->entry_status = 0; 2766 els_iocb->handle = sp->handle; 2767 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2768 els_iocb->tx_dsd_count = cpu_to_le16(1); 2769 els_iocb->vp_index = vha->vp_idx; 2770 els_iocb->sof_type = EST_SOFI3; 2771 els_iocb->rx_dsd_count = 0; 2772 els_iocb->opcode = elsio->u.els_logo.els_cmd; 2773 2774 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; 2775 els_iocb->d_id[1] = sp->fcport->d_id.b.area; 2776 els_iocb->d_id[2] = sp->fcport->d_id.b.domain; 2777 /* For SID the byte order is different than DID */ 2778 els_iocb->s_id[1] = vha->d_id.b.al_pa; 2779 els_iocb->s_id[2] = vha->d_id.b.area; 2780 els_iocb->s_id[0] = vha->d_id.b.domain; 2781 2782 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) { 2783 if (vha->hw->flags.edif_enabled) 2784 els_iocb->control_flags = cpu_to_le16(ECF_SEC_LOGIN); 2785 else 2786 els_iocb->control_flags = 0; 2787 els_iocb->tx_byte_count = els_iocb->tx_len = 2788 cpu_to_le32(sizeof(struct els_plogi_payload)); 2789 put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma, 2790 &els_iocb->tx_address); 2791 els_iocb->rx_dsd_count = cpu_to_le16(1); 2792 els_iocb->rx_byte_count = els_iocb->rx_len = 2793 cpu_to_le32(sizeof(struct els_plogi_payload)); 2794 put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma, 2795 &els_iocb->rx_address); 2796 2797 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, 2798 "PLOGI ELS IOCB:\n"); 2799 ql_dump_buffer(ql_log_info, vha, 0x0109, 2800 (uint8_t *)els_iocb, 2801 sizeof(*els_iocb)); 2802 } else { 2803 els_iocb->tx_byte_count = 2804 cpu_to_le32(sizeof(struct els_logo_payload)); 2805 put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma, 2806 &els_iocb->tx_address); 2807 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); 2808 2809 els_iocb->rx_byte_count = 0; 2810 els_iocb->rx_address = 0; 2811 els_iocb->rx_len = 0; 2812 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076, 2813 "LOGO ELS IOCB:"); 2814 ql_dump_buffer(ql_log_info, vha, 0x010b, 2815 els_iocb, 2816 sizeof(*els_iocb)); 2817 } 2818 2819 sp->vha->qla_stats.control_requests++; 2820 } 2821 2822 void 2823 qla2x00_els_dcmd2_iocb_timeout(void *data) 2824 { 2825 srb_t *sp = data; 2826 fc_port_t *fcport = sp->fcport; 2827 struct scsi_qla_host *vha = sp->vha; 2828 unsigned long flags = 0; 2829 int res, h; 2830 2831 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069, 2832 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n", 2833 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24); 2834 2835 /* Abort the exchange */ 2836 res = qla24xx_async_abort_cmd(sp, false); 2837 ql_dbg(ql_dbg_io, vha, 0x3070, 2838 "mbx abort_command %s\n", 2839 (res == QLA_SUCCESS) ? "successful" : "failed"); 2840 if (res) { 2841 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); 2842 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { 2843 if (sp->qpair->req->outstanding_cmds[h] == sp) { 2844 sp->qpair->req->outstanding_cmds[h] = NULL; 2845 break; 2846 } 2847 } 2848 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); 2849 sp->done(sp, QLA_FUNCTION_TIMEOUT); 2850 } 2851 } 2852 2853 void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi) 2854 { 2855 if (els_plogi->els_plogi_pyld) 2856 dma_free_coherent(&vha->hw->pdev->dev, 2857 els_plogi->tx_size, 2858 els_plogi->els_plogi_pyld, 2859 els_plogi->els_plogi_pyld_dma); 2860 2861 if (els_plogi->els_resp_pyld) 2862 dma_free_coherent(&vha->hw->pdev->dev, 2863 els_plogi->rx_size, 2864 els_plogi->els_resp_pyld, 2865 els_plogi->els_resp_pyld_dma); 2866 } 2867 2868 static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res) 2869 { 2870 fc_port_t *fcport = sp->fcport; 2871 struct srb_iocb *lio = &sp->u.iocb_cmd; 2872 struct scsi_qla_host *vha = sp->vha; 2873 struct event_arg ea; 2874 struct qla_work_evt *e; 2875 struct fc_port *conflict_fcport; 2876 port_id_t cid; /* conflict Nport id */ 2877 const __le32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status; 2878 u16 lid; 2879 2880 ql_dbg(ql_dbg_disc, vha, 0x3072, 2881 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n", 2882 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name); 2883 2884 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE); 2885 /* For edif, set logout on delete to ensure any residual key from FW is flushed.*/ 2886 fcport->logout_on_delete = 1; 2887 fcport->chip_reset = vha->hw->base_qpair->chip_reset; 2888 2889 if (sp->flags & SRB_WAKEUP_ON_COMP) 2890 complete(&lio->u.els_plogi.comp); 2891 else { 2892 switch (le32_to_cpu(fw_status[0])) { 2893 case CS_DATA_UNDERRUN: 2894 case CS_COMPLETE: 2895 memset(&ea, 0, sizeof(ea)); 2896 ea.fcport = fcport; 2897 ea.rc = res; 2898 qla_handle_els_plogi_done(vha, &ea); 2899 break; 2900 2901 case CS_IOCB_ERROR: 2902 switch (le32_to_cpu(fw_status[1])) { 2903 case LSC_SCODE_PORTID_USED: 2904 lid = le32_to_cpu(fw_status[2]) & 0xffff; 2905 qlt_find_sess_invalidate_other(vha, 2906 wwn_to_u64(fcport->port_name), 2907 fcport->d_id, lid, &conflict_fcport); 2908 if (conflict_fcport) { 2909 /* 2910 * Another fcport shares the same 2911 * loop_id & nport id; conflict 2912 * fcport needs to finish cleanup 2913 * before this fcport can proceed 2914 * to login. 2915 */ 2916 conflict_fcport->conflict = fcport; 2917 fcport->login_pause = 1; 2918 ql_dbg(ql_dbg_disc, vha, 0x20ed, 2919 "%s %d %8phC pid %06x inuse with lid %#x post gidpn\n", 2920 __func__, __LINE__, 2921 fcport->port_name, 2922 fcport->d_id.b24, lid); 2923 } else { 2924 ql_dbg(ql_dbg_disc, vha, 0x20ed, 2925 "%s %d %8phC pid %06x inuse with lid %#x sched del\n", 2926 __func__, __LINE__, 2927 fcport->port_name, 2928 fcport->d_id.b24, lid); 2929 qla2x00_clear_loop_id(fcport); 2930 set_bit(lid, vha->hw->loop_id_map); 2931 fcport->loop_id = lid; 2932 fcport->keep_nport_handle = 0; 2933 qlt_schedule_sess_for_deletion(fcport); 2934 } 2935 break; 2936 2937 case LSC_SCODE_NPORT_USED: 2938 cid.b.domain = (le32_to_cpu(fw_status[2]) >> 16) 2939 & 0xff; 2940 cid.b.area = (le32_to_cpu(fw_status[2]) >> 8) 2941 & 0xff; 2942 cid.b.al_pa = le32_to_cpu(fw_status[2]) & 0xff; 2943 cid.b.rsvd_1 = 0; 2944 2945 ql_dbg(ql_dbg_disc, vha, 0x20ec, 2946 "%s %d %8phC lid %#x in use with pid %06x post gnl\n", 2947 __func__, __LINE__, fcport->port_name, 2948 fcport->loop_id, cid.b24); 2949 set_bit(fcport->loop_id, 2950 vha->hw->loop_id_map); 2951 fcport->loop_id = FC_NO_LOOP_ID; 2952 qla24xx_post_gnl_work(vha, fcport); 2953 break; 2954 2955 case LSC_SCODE_NOXCB: 2956 vha->hw->exch_starvation++; 2957 if (vha->hw->exch_starvation > 5) { 2958 ql_log(ql_log_warn, vha, 0xd046, 2959 "Exchange starvation. Resetting RISC\n"); 2960 vha->hw->exch_starvation = 0; 2961 set_bit(ISP_ABORT_NEEDED, 2962 &vha->dpc_flags); 2963 qla2xxx_wake_dpc(vha); 2964 break; 2965 } 2966 fallthrough; 2967 default: 2968 ql_dbg(ql_dbg_disc, vha, 0x20eb, 2969 "%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n", 2970 __func__, sp->fcport->port_name, 2971 fw_status[0], fw_status[1], fw_status[2]); 2972 2973 fcport->flags &= ~FCF_ASYNC_SENT; 2974 qlt_schedule_sess_for_deletion(fcport); 2975 break; 2976 } 2977 break; 2978 2979 default: 2980 ql_dbg(ql_dbg_disc, vha, 0x20eb, 2981 "%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n", 2982 __func__, sp->fcport->port_name, 2983 fw_status[0], fw_status[1], fw_status[2]); 2984 2985 sp->fcport->flags &= ~FCF_ASYNC_SENT; 2986 qlt_schedule_sess_for_deletion(fcport); 2987 break; 2988 } 2989 2990 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP); 2991 if (!e) { 2992 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2993 2994 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); 2995 /* ref: INIT */ 2996 kref_put(&sp->cmd_kref, qla2x00_sp_release); 2997 return; 2998 } 2999 e->u.iosb.sp = sp; 3000 qla2x00_post_work(vha, e); 3001 } 3002 } 3003 3004 int 3005 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, 3006 fc_port_t *fcport, bool wait) 3007 { 3008 srb_t *sp; 3009 struct srb_iocb *elsio = NULL; 3010 struct qla_hw_data *ha = vha->hw; 3011 int rval = QLA_SUCCESS; 3012 void *ptr, *resp_ptr; 3013 3014 /* Alloc SRB structure 3015 * ref: INIT 3016 */ 3017 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 3018 if (!sp) { 3019 ql_log(ql_log_info, vha, 0x70e6, 3020 "SRB allocation failed\n"); 3021 fcport->flags &= ~FCF_ASYNC_ACTIVE; 3022 return -ENOMEM; 3023 } 3024 3025 fcport->flags |= FCF_ASYNC_SENT; 3026 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND); 3027 elsio = &sp->u.iocb_cmd; 3028 ql_dbg(ql_dbg_io, vha, 0x3073, 3029 "%s Enter: PLOGI portid=%06x\n", __func__, fcport->d_id.b24); 3030 3031 if (wait) 3032 sp->flags = SRB_WAKEUP_ON_COMP; 3033 3034 sp->type = SRB_ELS_DCMD; 3035 sp->name = "ELS_DCMD"; 3036 sp->fcport = fcport; 3037 qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT + 2, 3038 qla2x00_els_dcmd2_sp_done); 3039 sp->u.iocb_cmd.timeout = qla2x00_els_dcmd2_iocb_timeout; 3040 3041 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE; 3042 3043 ptr = elsio->u.els_plogi.els_plogi_pyld = 3044 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size, 3045 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL); 3046 3047 if (!elsio->u.els_plogi.els_plogi_pyld) { 3048 rval = QLA_FUNCTION_FAILED; 3049 goto out; 3050 } 3051 3052 resp_ptr = elsio->u.els_plogi.els_resp_pyld = 3053 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size, 3054 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL); 3055 3056 if (!elsio->u.els_plogi.els_resp_pyld) { 3057 rval = QLA_FUNCTION_FAILED; 3058 goto out; 3059 } 3060 3061 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr); 3062 3063 memset(ptr, 0, sizeof(struct els_plogi_payload)); 3064 memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); 3065 memcpy(elsio->u.els_plogi.els_plogi_pyld->data, 3066 &ha->plogi_els_payld.fl_csp, LOGIN_TEMPLATE_SIZE); 3067 3068 elsio->u.els_plogi.els_cmd = els_opcode; 3069 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; 3070 3071 if (els_opcode == ELS_DCMD_PLOGI && DBELL_ACTIVE(vha)) { 3072 struct fc_els_flogi *p = ptr; 3073 3074 p->fl_csp.sp_features |= cpu_to_be16(FC_SP_FT_SEC); 3075 } 3076 3077 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n"); 3078 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109, 3079 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 3080 sizeof(*elsio->u.els_plogi.els_plogi_pyld)); 3081 3082 init_completion(&elsio->u.els_plogi.comp); 3083 rval = qla2x00_start_sp(sp); 3084 if (rval != QLA_SUCCESS) { 3085 rval = QLA_FUNCTION_FAILED; 3086 } else { 3087 ql_dbg(ql_dbg_disc, vha, 0x3074, 3088 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n", 3089 sp->name, sp->handle, fcport->loop_id, 3090 fcport->d_id.b24, vha->d_id.b24); 3091 } 3092 3093 if (wait) { 3094 wait_for_completion(&elsio->u.els_plogi.comp); 3095 3096 if (elsio->u.els_plogi.comp_status != CS_COMPLETE) 3097 rval = QLA_FUNCTION_FAILED; 3098 } else { 3099 goto done; 3100 } 3101 3102 out: 3103 fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE); 3104 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); 3105 /* ref: INIT */ 3106 kref_put(&sp->cmd_kref, qla2x00_sp_release); 3107 done: 3108 return rval; 3109 } 3110 3111 /* it is assume qpair lock is held */ 3112 void qla_els_pt_iocb(struct scsi_qla_host *vha, 3113 struct els_entry_24xx *els_iocb, 3114 struct qla_els_pt_arg *a) 3115 { 3116 els_iocb->entry_type = ELS_IOCB_TYPE; 3117 els_iocb->entry_count = 1; 3118 els_iocb->sys_define = 0; 3119 els_iocb->entry_status = 0; 3120 els_iocb->handle = QLA_SKIP_HANDLE; 3121 els_iocb->nport_handle = a->nport_handle; 3122 els_iocb->rx_xchg_address = a->rx_xchg_address; 3123 els_iocb->tx_dsd_count = cpu_to_le16(1); 3124 els_iocb->vp_index = a->vp_idx; 3125 els_iocb->sof_type = EST_SOFI3; 3126 els_iocb->rx_dsd_count = cpu_to_le16(0); 3127 els_iocb->opcode = a->els_opcode; 3128 3129 els_iocb->d_id[0] = a->did.b.al_pa; 3130 els_iocb->d_id[1] = a->did.b.area; 3131 els_iocb->d_id[2] = a->did.b.domain; 3132 /* For SID the byte order is different than DID */ 3133 els_iocb->s_id[1] = vha->d_id.b.al_pa; 3134 els_iocb->s_id[2] = vha->d_id.b.area; 3135 els_iocb->s_id[0] = vha->d_id.b.domain; 3136 3137 els_iocb->control_flags = cpu_to_le16(a->control_flags); 3138 3139 els_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count); 3140 els_iocb->tx_len = cpu_to_le32(a->tx_len); 3141 put_unaligned_le64(a->tx_addr, &els_iocb->tx_address); 3142 3143 els_iocb->rx_byte_count = cpu_to_le32(a->rx_byte_count); 3144 els_iocb->rx_len = cpu_to_le32(a->rx_len); 3145 put_unaligned_le64(a->rx_addr, &els_iocb->rx_address); 3146 } 3147 3148 static void 3149 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 3150 { 3151 struct bsg_job *bsg_job = sp->u.bsg_job; 3152 struct fc_bsg_request *bsg_request = bsg_job->request; 3153 3154 els_iocb->entry_type = ELS_IOCB_TYPE; 3155 els_iocb->entry_count = 1; 3156 els_iocb->sys_define = 0; 3157 els_iocb->entry_status = 0; 3158 els_iocb->handle = sp->handle; 3159 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3160 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3161 els_iocb->vp_index = sp->vha->vp_idx; 3162 els_iocb->sof_type = EST_SOFI3; 3163 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3164 3165 els_iocb->opcode = 3166 sp->type == SRB_ELS_CMD_RPT ? 3167 bsg_request->rqst_data.r_els.els_code : 3168 bsg_request->rqst_data.h_els.command_code; 3169 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; 3170 els_iocb->d_id[1] = sp->fcport->d_id.b.area; 3171 els_iocb->d_id[2] = sp->fcport->d_id.b.domain; 3172 els_iocb->control_flags = 0; 3173 els_iocb->rx_byte_count = 3174 cpu_to_le32(bsg_job->reply_payload.payload_len); 3175 els_iocb->tx_byte_count = 3176 cpu_to_le32(bsg_job->request_payload.payload_len); 3177 3178 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), 3179 &els_iocb->tx_address); 3180 els_iocb->tx_len = cpu_to_le32(sg_dma_len 3181 (bsg_job->request_payload.sg_list)); 3182 3183 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), 3184 &els_iocb->rx_address); 3185 els_iocb->rx_len = cpu_to_le32(sg_dma_len 3186 (bsg_job->reply_payload.sg_list)); 3187 3188 sp->vha->qla_stats.control_requests++; 3189 } 3190 3191 static void 3192 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) 3193 { 3194 uint16_t avail_dsds; 3195 struct dsd64 *cur_dsd; 3196 struct scatterlist *sg; 3197 int index; 3198 uint16_t tot_dsds; 3199 scsi_qla_host_t *vha = sp->vha; 3200 struct qla_hw_data *ha = vha->hw; 3201 struct bsg_job *bsg_job = sp->u.bsg_job; 3202 int entry_count = 1; 3203 3204 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); 3205 ct_iocb->entry_type = CT_IOCB_TYPE; 3206 ct_iocb->entry_status = 0; 3207 ct_iocb->handle1 = sp->handle; 3208 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); 3209 ct_iocb->status = cpu_to_le16(0); 3210 ct_iocb->control_flags = cpu_to_le16(0); 3211 ct_iocb->timeout = 0; 3212 ct_iocb->cmd_dsd_count = 3213 cpu_to_le16(bsg_job->request_payload.sg_cnt); 3214 ct_iocb->total_dsd_count = 3215 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); 3216 ct_iocb->req_bytecount = 3217 cpu_to_le32(bsg_job->request_payload.payload_len); 3218 ct_iocb->rsp_bytecount = 3219 cpu_to_le32(bsg_job->reply_payload.payload_len); 3220 3221 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), 3222 &ct_iocb->req_dsd.address); 3223 ct_iocb->req_dsd.length = ct_iocb->req_bytecount; 3224 3225 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), 3226 &ct_iocb->rsp_dsd.address); 3227 ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount; 3228 3229 avail_dsds = 1; 3230 cur_dsd = &ct_iocb->rsp_dsd; 3231 index = 0; 3232 tot_dsds = bsg_job->reply_payload.sg_cnt; 3233 3234 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { 3235 cont_a64_entry_t *cont_pkt; 3236 3237 /* Allocate additional continuation packets? */ 3238 if (avail_dsds == 0) { 3239 /* 3240 * Five DSDs are available in the Cont. 3241 * Type 1 IOCB. 3242 */ 3243 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 3244 vha->hw->req_q_map[0]); 3245 cur_dsd = cont_pkt->dsd; 3246 avail_dsds = 5; 3247 entry_count++; 3248 } 3249 3250 append_dsd64(&cur_dsd, sg); 3251 avail_dsds--; 3252 } 3253 ct_iocb->entry_count = entry_count; 3254 3255 sp->vha->qla_stats.control_requests++; 3256 } 3257 3258 static void 3259 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) 3260 { 3261 uint16_t avail_dsds; 3262 struct dsd64 *cur_dsd; 3263 struct scatterlist *sg; 3264 int index; 3265 uint16_t cmd_dsds, rsp_dsds; 3266 scsi_qla_host_t *vha = sp->vha; 3267 struct qla_hw_data *ha = vha->hw; 3268 struct bsg_job *bsg_job = sp->u.bsg_job; 3269 int entry_count = 1; 3270 cont_a64_entry_t *cont_pkt = NULL; 3271 3272 ct_iocb->entry_type = CT_IOCB_TYPE; 3273 ct_iocb->entry_status = 0; 3274 ct_iocb->sys_define = 0; 3275 ct_iocb->handle = sp->handle; 3276 3277 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3278 ct_iocb->vp_index = sp->vha->vp_idx; 3279 ct_iocb->comp_status = cpu_to_le16(0); 3280 3281 cmd_dsds = bsg_job->request_payload.sg_cnt; 3282 rsp_dsds = bsg_job->reply_payload.sg_cnt; 3283 3284 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds); 3285 ct_iocb->timeout = 0; 3286 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds); 3287 ct_iocb->cmd_byte_count = 3288 cpu_to_le32(bsg_job->request_payload.payload_len); 3289 3290 avail_dsds = 2; 3291 cur_dsd = ct_iocb->dsd; 3292 index = 0; 3293 3294 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) { 3295 /* Allocate additional continuation packets? */ 3296 if (avail_dsds == 0) { 3297 /* 3298 * Five DSDs are available in the Cont. 3299 * Type 1 IOCB. 3300 */ 3301 cont_pkt = qla2x00_prep_cont_type1_iocb( 3302 vha, ha->req_q_map[0]); 3303 cur_dsd = cont_pkt->dsd; 3304 avail_dsds = 5; 3305 entry_count++; 3306 } 3307 3308 append_dsd64(&cur_dsd, sg); 3309 avail_dsds--; 3310 } 3311 3312 index = 0; 3313 3314 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) { 3315 /* Allocate additional continuation packets? */ 3316 if (avail_dsds == 0) { 3317 /* 3318 * Five DSDs are available in the Cont. 3319 * Type 1 IOCB. 3320 */ 3321 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 3322 ha->req_q_map[0]); 3323 cur_dsd = cont_pkt->dsd; 3324 avail_dsds = 5; 3325 entry_count++; 3326 } 3327 3328 append_dsd64(&cur_dsd, sg); 3329 avail_dsds--; 3330 } 3331 ct_iocb->entry_count = entry_count; 3332 } 3333 3334 /* 3335 * qla82xx_start_scsi() - Send a SCSI command to the ISP 3336 * @sp: command to send to the ISP 3337 * 3338 * Returns non-zero if a failure occurred, else zero. 3339 */ 3340 int 3341 qla82xx_start_scsi(srb_t *sp) 3342 { 3343 int nseg; 3344 unsigned long flags; 3345 struct scsi_cmnd *cmd; 3346 uint32_t *clr_ptr; 3347 uint32_t handle; 3348 uint16_t cnt; 3349 uint16_t req_cnt; 3350 uint16_t tot_dsds; 3351 struct device_reg_82xx __iomem *reg; 3352 uint32_t dbval; 3353 __be32 *fcp_dl; 3354 uint8_t additional_cdb_len; 3355 struct ct6_dsd *ctx; 3356 struct scsi_qla_host *vha = sp->vha; 3357 struct qla_hw_data *ha = vha->hw; 3358 struct req_que *req = NULL; 3359 struct rsp_que *rsp = NULL; 3360 3361 /* Setup device pointers. */ 3362 reg = &ha->iobase->isp82; 3363 cmd = GET_CMD_SP(sp); 3364 req = vha->req; 3365 rsp = ha->rsp_q_map[0]; 3366 3367 /* So we know we haven't pci_map'ed anything yet */ 3368 tot_dsds = 0; 3369 3370 dbval = 0x04 | (ha->portnum << 5); 3371 3372 /* Send marker if required */ 3373 if (vha->marker_needed != 0) { 3374 if (qla2x00_marker(vha, ha->base_qpair, 3375 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { 3376 ql_log(ql_log_warn, vha, 0x300c, 3377 "qla2x00_marker failed for cmd=%p.\n", cmd); 3378 return QLA_FUNCTION_FAILED; 3379 } 3380 vha->marker_needed = 0; 3381 } 3382 3383 /* Acquire ring specific lock */ 3384 spin_lock_irqsave(&ha->hardware_lock, flags); 3385 3386 handle = qla2xxx_get_next_handle(req); 3387 if (handle == 0) 3388 goto queuing_error; 3389 3390 /* Map the sg table so we have an accurate count of sg entries needed */ 3391 if (scsi_sg_count(cmd)) { 3392 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 3393 scsi_sg_count(cmd), cmd->sc_data_direction); 3394 if (unlikely(!nseg)) 3395 goto queuing_error; 3396 } else 3397 nseg = 0; 3398 3399 tot_dsds = nseg; 3400 3401 if (tot_dsds > ql2xshiftctondsd) { 3402 struct cmd_type_6 *cmd_pkt; 3403 uint16_t more_dsd_lists = 0; 3404 struct dsd_dma *dsd_ptr; 3405 uint16_t i; 3406 3407 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); 3408 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { 3409 ql_dbg(ql_dbg_io, vha, 0x300d, 3410 "Num of DSD list %d is than %d for cmd=%p.\n", 3411 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, 3412 cmd); 3413 goto queuing_error; 3414 } 3415 3416 if (more_dsd_lists <= ha->gbl_dsd_avail) 3417 goto sufficient_dsds; 3418 else 3419 more_dsd_lists -= ha->gbl_dsd_avail; 3420 3421 for (i = 0; i < more_dsd_lists; i++) { 3422 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 3423 if (!dsd_ptr) { 3424 ql_log(ql_log_fatal, vha, 0x300e, 3425 "Failed to allocate memory for dsd_dma " 3426 "for cmd=%p.\n", cmd); 3427 goto queuing_error; 3428 } 3429 3430 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, 3431 GFP_ATOMIC, &dsd_ptr->dsd_list_dma); 3432 if (!dsd_ptr->dsd_addr) { 3433 kfree(dsd_ptr); 3434 ql_log(ql_log_fatal, vha, 0x300f, 3435 "Failed to allocate memory for dsd_addr " 3436 "for cmd=%p.\n", cmd); 3437 goto queuing_error; 3438 } 3439 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); 3440 ha->gbl_dsd_avail++; 3441 } 3442 3443 sufficient_dsds: 3444 req_cnt = 1; 3445 3446 if (req->cnt < (req_cnt + 2)) { 3447 cnt = (uint16_t)rd_reg_dword_relaxed( 3448 ®->req_q_out[0]); 3449 if (req->ring_index < cnt) 3450 req->cnt = cnt - req->ring_index; 3451 else 3452 req->cnt = req->length - 3453 (req->ring_index - cnt); 3454 if (req->cnt < (req_cnt + 2)) 3455 goto queuing_error; 3456 } 3457 3458 ctx = sp->u.scmd.ct6_ctx = 3459 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); 3460 if (!ctx) { 3461 ql_log(ql_log_fatal, vha, 0x3010, 3462 "Failed to allocate ctx for cmd=%p.\n", cmd); 3463 goto queuing_error; 3464 } 3465 3466 memset(ctx, 0, sizeof(struct ct6_dsd)); 3467 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, 3468 GFP_ATOMIC, &ctx->fcp_cmnd_dma); 3469 if (!ctx->fcp_cmnd) { 3470 ql_log(ql_log_fatal, vha, 0x3011, 3471 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); 3472 goto queuing_error; 3473 } 3474 3475 /* Initialize the DSD list and dma handle */ 3476 INIT_LIST_HEAD(&ctx->dsd_list); 3477 ctx->dsd_use_cnt = 0; 3478 3479 if (cmd->cmd_len > 16) { 3480 additional_cdb_len = cmd->cmd_len - 16; 3481 if ((cmd->cmd_len % 4) != 0) { 3482 /* SCSI command bigger than 16 bytes must be 3483 * multiple of 4 3484 */ 3485 ql_log(ql_log_warn, vha, 0x3012, 3486 "scsi cmd len %d not multiple of 4 " 3487 "for cmd=%p.\n", cmd->cmd_len, cmd); 3488 goto queuing_error_fcp_cmnd; 3489 } 3490 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; 3491 } else { 3492 additional_cdb_len = 0; 3493 ctx->fcp_cmnd_len = 12 + 16 + 4; 3494 } 3495 3496 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; 3497 cmd_pkt->handle = make_handle(req->id, handle); 3498 3499 /* Zero out remaining portion of packet. */ 3500 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 3501 clr_ptr = (uint32_t *)cmd_pkt + 2; 3502 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3503 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3504 3505 /* Set NPORT-ID and LUN number*/ 3506 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3507 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3508 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3509 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3510 cmd_pkt->vp_index = sp->vha->vp_idx; 3511 3512 /* Build IOCB segments */ 3513 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) 3514 goto queuing_error_fcp_cmnd; 3515 3516 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3517 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 3518 3519 /* build FCP_CMND IU */ 3520 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); 3521 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; 3522 3523 if (cmd->sc_data_direction == DMA_TO_DEVICE) 3524 ctx->fcp_cmnd->additional_cdb_len |= 1; 3525 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 3526 ctx->fcp_cmnd->additional_cdb_len |= 2; 3527 3528 /* Populate the FCP_PRIO. */ 3529 if (ha->flags.fcp_prio_enabled) 3530 ctx->fcp_cmnd->task_attribute |= 3531 sp->fcport->fcp_prio << 3; 3532 3533 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 3534 3535 fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 + 3536 additional_cdb_len); 3537 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); 3538 3539 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); 3540 put_unaligned_le64(ctx->fcp_cmnd_dma, 3541 &cmd_pkt->fcp_cmnd_dseg_address); 3542 3543 sp->flags |= SRB_FCP_CMND_DMA_VALID; 3544 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3545 /* Set total data segment count. */ 3546 cmd_pkt->entry_count = (uint8_t)req_cnt; 3547 /* Specify response queue number where 3548 * completion should happen 3549 */ 3550 cmd_pkt->entry_status = (uint8_t) rsp->id; 3551 } else { 3552 struct cmd_type_7 *cmd_pkt; 3553 3554 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3555 if (req->cnt < (req_cnt + 2)) { 3556 cnt = (uint16_t)rd_reg_dword_relaxed( 3557 ®->req_q_out[0]); 3558 if (req->ring_index < cnt) 3559 req->cnt = cnt - req->ring_index; 3560 else 3561 req->cnt = req->length - 3562 (req->ring_index - cnt); 3563 } 3564 if (req->cnt < (req_cnt + 2)) 3565 goto queuing_error; 3566 3567 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 3568 cmd_pkt->handle = make_handle(req->id, handle); 3569 3570 /* Zero out remaining portion of packet. */ 3571 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3572 clr_ptr = (uint32_t *)cmd_pkt + 2; 3573 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3574 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3575 3576 /* Set NPORT-ID and LUN number*/ 3577 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3578 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3579 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3580 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3581 cmd_pkt->vp_index = sp->vha->vp_idx; 3582 3583 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3584 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, 3585 sizeof(cmd_pkt->lun)); 3586 3587 /* Populate the FCP_PRIO. */ 3588 if (ha->flags.fcp_prio_enabled) 3589 cmd_pkt->task |= sp->fcport->fcp_prio << 3; 3590 3591 /* Load SCSI command packet. */ 3592 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 3593 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 3594 3595 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3596 3597 /* Build IOCB segments */ 3598 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 3599 3600 /* Set total data segment count. */ 3601 cmd_pkt->entry_count = (uint8_t)req_cnt; 3602 /* Specify response queue number where 3603 * completion should happen. 3604 */ 3605 cmd_pkt->entry_status = (uint8_t) rsp->id; 3606 3607 } 3608 /* Build command packet. */ 3609 req->current_outstanding_cmd = handle; 3610 req->outstanding_cmds[handle] = sp; 3611 sp->handle = handle; 3612 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 3613 req->cnt -= req_cnt; 3614 wmb(); 3615 3616 /* Adjust ring index. */ 3617 req->ring_index++; 3618 if (req->ring_index == req->length) { 3619 req->ring_index = 0; 3620 req->ring_ptr = req->ring; 3621 } else 3622 req->ring_ptr++; 3623 3624 sp->flags |= SRB_DMA_VALID; 3625 3626 /* Set chip new ring index. */ 3627 /* write, read and verify logic */ 3628 dbval = dbval | (req->id << 8) | (req->ring_index << 16); 3629 if (ql2xdbwr) 3630 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval); 3631 else { 3632 wrt_reg_dword(ha->nxdb_wr_ptr, dbval); 3633 wmb(); 3634 while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) { 3635 wrt_reg_dword(ha->nxdb_wr_ptr, dbval); 3636 wmb(); 3637 } 3638 } 3639 3640 /* Manage unprocessed RIO/ZIO commands in response queue. */ 3641 if (vha->flags.process_response_queue && 3642 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 3643 qla24xx_process_response_queue(vha, rsp); 3644 3645 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3646 return QLA_SUCCESS; 3647 3648 queuing_error_fcp_cmnd: 3649 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); 3650 queuing_error: 3651 if (tot_dsds) 3652 scsi_dma_unmap(cmd); 3653 3654 if (sp->u.scmd.crc_ctx) { 3655 mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool); 3656 sp->u.scmd.crc_ctx = NULL; 3657 } 3658 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3659 3660 return QLA_FUNCTION_FAILED; 3661 } 3662 3663 static void 3664 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) 3665 { 3666 struct srb_iocb *aio = &sp->u.iocb_cmd; 3667 scsi_qla_host_t *vha = sp->vha; 3668 struct req_que *req = sp->qpair->req; 3669 srb_t *orig_sp = sp->cmd_sp; 3670 3671 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); 3672 abt_iocb->entry_type = ABORT_IOCB_TYPE; 3673 abt_iocb->entry_count = 1; 3674 abt_iocb->handle = make_handle(req->id, sp->handle); 3675 if (sp->fcport) { 3676 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3677 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 3678 abt_iocb->port_id[1] = sp->fcport->d_id.b.area; 3679 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; 3680 } 3681 abt_iocb->handle_to_abort = 3682 make_handle(le16_to_cpu(aio->u.abt.req_que_no), 3683 aio->u.abt.cmd_hndl); 3684 abt_iocb->vp_index = vha->vp_idx; 3685 abt_iocb->req_que_no = aio->u.abt.req_que_no; 3686 3687 /* need to pass original sp */ 3688 if (orig_sp) 3689 qla_nvme_abort_set_option(abt_iocb, orig_sp); 3690 3691 /* Send the command to the firmware */ 3692 wmb(); 3693 } 3694 3695 static void 3696 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx) 3697 { 3698 int i, sz; 3699 3700 mbx->entry_type = MBX_IOCB_TYPE; 3701 mbx->handle = sp->handle; 3702 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb)); 3703 3704 for (i = 0; i < sz; i++) 3705 mbx->mb[i] = sp->u.iocb_cmd.u.mbx.out_mb[i]; 3706 } 3707 3708 static void 3709 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt) 3710 { 3711 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt; 3712 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg); 3713 ct_pkt->handle = sp->handle; 3714 } 3715 3716 static void qla2x00_send_notify_ack_iocb(srb_t *sp, 3717 struct nack_to_isp *nack) 3718 { 3719 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy; 3720 3721 nack->entry_type = NOTIFY_ACK_TYPE; 3722 nack->entry_count = 1; 3723 nack->ox_id = ntfy->ox_id; 3724 3725 nack->u.isp24.handle = sp->handle; 3726 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; 3727 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { 3728 nack->u.isp24.flags = ntfy->u.isp24.flags & 3729 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB); 3730 } 3731 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; 3732 nack->u.isp24.status = ntfy->u.isp24.status; 3733 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; 3734 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; 3735 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; 3736 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; 3737 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; 3738 nack->u.isp24.srr_flags = 0; 3739 nack->u.isp24.srr_reject_code = 0; 3740 nack->u.isp24.srr_reject_code_expl = 0; 3741 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; 3742 3743 if (ntfy->u.isp24.status_subcode == ELS_PLOGI && 3744 (le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP) && 3745 sp->vha->hw->flags.edif_enabled) { 3746 ql_dbg(ql_dbg_disc, sp->vha, 0x3074, 3747 "%s PLOGI NACK sent with FC SECURITY bit, hdl=%x, loopid=%x, to pid %06x\n", 3748 sp->name, sp->handle, sp->fcport->loop_id, 3749 sp->fcport->d_id.b24); 3750 nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP); 3751 } 3752 } 3753 3754 /* 3755 * Build NVME LS request 3756 */ 3757 static void 3758 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt) 3759 { 3760 struct srb_iocb *nvme; 3761 3762 nvme = &sp->u.iocb_cmd; 3763 cmd_pkt->entry_type = PT_LS4_REQUEST; 3764 cmd_pkt->entry_count = 1; 3765 cmd_pkt->control_flags = cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT); 3766 3767 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec); 3768 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3769 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 3770 3771 cmd_pkt->tx_dseg_count = cpu_to_le16(1); 3772 cmd_pkt->tx_byte_count = cpu_to_le32(nvme->u.nvme.cmd_len); 3773 cmd_pkt->dsd[0].length = cpu_to_le32(nvme->u.nvme.cmd_len); 3774 put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address); 3775 3776 cmd_pkt->rx_dseg_count = cpu_to_le16(1); 3777 cmd_pkt->rx_byte_count = cpu_to_le32(nvme->u.nvme.rsp_len); 3778 cmd_pkt->dsd[1].length = cpu_to_le32(nvme->u.nvme.rsp_len); 3779 put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address); 3780 } 3781 3782 static void 3783 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce) 3784 { 3785 int map, pos; 3786 3787 vce->entry_type = VP_CTRL_IOCB_TYPE; 3788 vce->handle = sp->handle; 3789 vce->entry_count = 1; 3790 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd); 3791 vce->vp_count = cpu_to_le16(1); 3792 3793 /* 3794 * index map in firmware starts with 1; decrement index 3795 * this is ok as we never use index 0 3796 */ 3797 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8; 3798 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7; 3799 vce->vp_idx_map[map] |= 1 << pos; 3800 } 3801 3802 static void 3803 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio) 3804 { 3805 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 3806 logio->control_flags = 3807 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO); 3808 3809 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3810 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 3811 logio->port_id[1] = sp->fcport->d_id.b.area; 3812 logio->port_id[2] = sp->fcport->d_id.b.domain; 3813 logio->vp_index = sp->fcport->vha->vp_idx; 3814 } 3815 3816 int 3817 qla2x00_start_sp(srb_t *sp) 3818 { 3819 int rval = QLA_SUCCESS; 3820 scsi_qla_host_t *vha = sp->vha; 3821 struct qla_hw_data *ha = vha->hw; 3822 struct qla_qpair *qp = sp->qpair; 3823 void *pkt; 3824 unsigned long flags; 3825 3826 if (vha->hw->flags.eeh_busy) 3827 return -EIO; 3828 3829 spin_lock_irqsave(qp->qp_lock_ptr, flags); 3830 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp); 3831 if (!pkt) { 3832 rval = EAGAIN; 3833 ql_log(ql_log_warn, vha, 0x700c, 3834 "qla2x00_alloc_iocbs failed.\n"); 3835 goto done; 3836 } 3837 3838 switch (sp->type) { 3839 case SRB_LOGIN_CMD: 3840 IS_FWI2_CAPABLE(ha) ? 3841 qla24xx_login_iocb(sp, pkt) : 3842 qla2x00_login_iocb(sp, pkt); 3843 break; 3844 case SRB_PRLI_CMD: 3845 qla24xx_prli_iocb(sp, pkt); 3846 break; 3847 case SRB_LOGOUT_CMD: 3848 IS_FWI2_CAPABLE(ha) ? 3849 qla24xx_logout_iocb(sp, pkt) : 3850 qla2x00_logout_iocb(sp, pkt); 3851 break; 3852 case SRB_ELS_CMD_RPT: 3853 case SRB_ELS_CMD_HST: 3854 qla24xx_els_iocb(sp, pkt); 3855 break; 3856 case SRB_ELS_CMD_HST_NOLOGIN: 3857 qla_els_pt_iocb(sp->vha, pkt, &sp->u.bsg_cmd.u.els_arg); 3858 ((struct els_entry_24xx *)pkt)->handle = sp->handle; 3859 break; 3860 case SRB_CT_CMD: 3861 IS_FWI2_CAPABLE(ha) ? 3862 qla24xx_ct_iocb(sp, pkt) : 3863 qla2x00_ct_iocb(sp, pkt); 3864 break; 3865 case SRB_ADISC_CMD: 3866 IS_FWI2_CAPABLE(ha) ? 3867 qla24xx_adisc_iocb(sp, pkt) : 3868 qla2x00_adisc_iocb(sp, pkt); 3869 break; 3870 case SRB_TM_CMD: 3871 IS_QLAFX00(ha) ? 3872 qlafx00_tm_iocb(sp, pkt) : 3873 qla24xx_tm_iocb(sp, pkt); 3874 break; 3875 case SRB_FXIOCB_DCMD: 3876 case SRB_FXIOCB_BCMD: 3877 qlafx00_fxdisc_iocb(sp, pkt); 3878 break; 3879 case SRB_NVME_LS: 3880 qla_nvme_ls(sp, pkt); 3881 break; 3882 case SRB_ABT_CMD: 3883 IS_QLAFX00(ha) ? 3884 qlafx00_abort_iocb(sp, pkt) : 3885 qla24xx_abort_iocb(sp, pkt); 3886 break; 3887 case SRB_ELS_DCMD: 3888 qla24xx_els_logo_iocb(sp, pkt); 3889 break; 3890 case SRB_CT_PTHRU_CMD: 3891 qla2x00_ctpthru_cmd_iocb(sp, pkt); 3892 break; 3893 case SRB_MB_IOCB: 3894 qla2x00_mb_iocb(sp, pkt); 3895 break; 3896 case SRB_NACK_PLOGI: 3897 case SRB_NACK_PRLI: 3898 case SRB_NACK_LOGO: 3899 qla2x00_send_notify_ack_iocb(sp, pkt); 3900 break; 3901 case SRB_CTRL_VP: 3902 qla25xx_ctrlvp_iocb(sp, pkt); 3903 break; 3904 case SRB_PRLO_CMD: 3905 qla24xx_prlo_iocb(sp, pkt); 3906 break; 3907 case SRB_SA_UPDATE: 3908 qla24xx_sa_update_iocb(sp, pkt); 3909 break; 3910 case SRB_SA_REPLACE: 3911 qla24xx_sa_replace_iocb(sp, pkt); 3912 break; 3913 default: 3914 break; 3915 } 3916 3917 if (sp->start_timer) { 3918 /* ref: TMR timer ref 3919 * this code should be just before start_iocbs function 3920 * This will make sure that caller function don't to do 3921 * kref_put even on failure 3922 */ 3923 kref_get(&sp->cmd_kref); 3924 add_timer(&sp->u.iocb_cmd.timer); 3925 } 3926 3927 wmb(); 3928 qla2x00_start_iocbs(vha, qp->req); 3929 done: 3930 spin_unlock_irqrestore(qp->qp_lock_ptr, flags); 3931 return rval; 3932 } 3933 3934 static void 3935 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, 3936 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) 3937 { 3938 uint16_t avail_dsds; 3939 struct dsd64 *cur_dsd; 3940 uint32_t req_data_len = 0; 3941 uint32_t rsp_data_len = 0; 3942 struct scatterlist *sg; 3943 int index; 3944 int entry_count = 1; 3945 struct bsg_job *bsg_job = sp->u.bsg_job; 3946 3947 /*Update entry type to indicate bidir command */ 3948 put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type); 3949 3950 /* Set the transfer direction, in this set both flags 3951 * Also set the BD_WRAP_BACK flag, firmware will take care 3952 * assigning DID=SID for outgoing pkts. 3953 */ 3954 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3955 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3956 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | 3957 BD_WRAP_BACK); 3958 3959 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; 3960 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); 3961 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); 3962 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); 3963 3964 vha->bidi_stats.transfer_bytes += req_data_len; 3965 vha->bidi_stats.io_count++; 3966 3967 vha->qla_stats.output_bytes += req_data_len; 3968 vha->qla_stats.output_requests++; 3969 3970 /* Only one dsd is available for bidirectional IOCB, remaining dsds 3971 * are bundled in continuation iocb 3972 */ 3973 avail_dsds = 1; 3974 cur_dsd = &cmd_pkt->fcp_dsd; 3975 3976 index = 0; 3977 3978 for_each_sg(bsg_job->request_payload.sg_list, sg, 3979 bsg_job->request_payload.sg_cnt, index) { 3980 cont_a64_entry_t *cont_pkt; 3981 3982 /* Allocate additional continuation packets */ 3983 if (avail_dsds == 0) { 3984 /* Continuation type 1 IOCB can accomodate 3985 * 5 DSDS 3986 */ 3987 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3988 cur_dsd = cont_pkt->dsd; 3989 avail_dsds = 5; 3990 entry_count++; 3991 } 3992 append_dsd64(&cur_dsd, sg); 3993 avail_dsds--; 3994 } 3995 /* For read request DSD will always goes to continuation IOCB 3996 * and follow the write DSD. If there is room on the current IOCB 3997 * then it is added to that IOCB else new continuation IOCB is 3998 * allocated. 3999 */ 4000 for_each_sg(bsg_job->reply_payload.sg_list, sg, 4001 bsg_job->reply_payload.sg_cnt, index) { 4002 cont_a64_entry_t *cont_pkt; 4003 4004 /* Allocate additional continuation packets */ 4005 if (avail_dsds == 0) { 4006 /* Continuation type 1 IOCB can accomodate 4007 * 5 DSDS 4008 */ 4009 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 4010 cur_dsd = cont_pkt->dsd; 4011 avail_dsds = 5; 4012 entry_count++; 4013 } 4014 append_dsd64(&cur_dsd, sg); 4015 avail_dsds--; 4016 } 4017 /* This value should be same as number of IOCB required for this cmd */ 4018 cmd_pkt->entry_count = entry_count; 4019 } 4020 4021 int 4022 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) 4023 { 4024 4025 struct qla_hw_data *ha = vha->hw; 4026 unsigned long flags; 4027 uint32_t handle; 4028 uint16_t req_cnt; 4029 uint16_t cnt; 4030 uint32_t *clr_ptr; 4031 struct cmd_bidir *cmd_pkt = NULL; 4032 struct rsp_que *rsp; 4033 struct req_que *req; 4034 int rval = EXT_STATUS_OK; 4035 4036 rval = QLA_SUCCESS; 4037 4038 rsp = ha->rsp_q_map[0]; 4039 req = vha->req; 4040 4041 /* Send marker if required */ 4042 if (vha->marker_needed != 0) { 4043 if (qla2x00_marker(vha, ha->base_qpair, 4044 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) 4045 return EXT_STATUS_MAILBOX; 4046 vha->marker_needed = 0; 4047 } 4048 4049 /* Acquire ring specific lock */ 4050 spin_lock_irqsave(&ha->hardware_lock, flags); 4051 4052 handle = qla2xxx_get_next_handle(req); 4053 if (handle == 0) { 4054 rval = EXT_STATUS_BUSY; 4055 goto queuing_error; 4056 } 4057 4058 /* Calculate number of IOCB required */ 4059 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 4060 4061 /* Check for room on request queue. */ 4062 if (req->cnt < req_cnt + 2) { 4063 if (IS_SHADOW_REG_CAPABLE(ha)) { 4064 cnt = *req->out_ptr; 4065 } else { 4066 cnt = rd_reg_dword_relaxed(req->req_q_out); 4067 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 4068 goto queuing_error; 4069 } 4070 4071 if (req->ring_index < cnt) 4072 req->cnt = cnt - req->ring_index; 4073 else 4074 req->cnt = req->length - 4075 (req->ring_index - cnt); 4076 } 4077 if (req->cnt < req_cnt + 2) { 4078 rval = EXT_STATUS_BUSY; 4079 goto queuing_error; 4080 } 4081 4082 cmd_pkt = (struct cmd_bidir *)req->ring_ptr; 4083 cmd_pkt->handle = make_handle(req->id, handle); 4084 4085 /* Zero out remaining portion of packet. */ 4086 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 4087 clr_ptr = (uint32_t *)cmd_pkt + 2; 4088 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 4089 4090 /* Set NPORT-ID (of vha)*/ 4091 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); 4092 cmd_pkt->port_id[0] = vha->d_id.b.al_pa; 4093 cmd_pkt->port_id[1] = vha->d_id.b.area; 4094 cmd_pkt->port_id[2] = vha->d_id.b.domain; 4095 4096 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); 4097 cmd_pkt->entry_status = (uint8_t) rsp->id; 4098 /* Build command packet. */ 4099 req->current_outstanding_cmd = handle; 4100 req->outstanding_cmds[handle] = sp; 4101 sp->handle = handle; 4102 req->cnt -= req_cnt; 4103 4104 /* Send the command to the firmware */ 4105 wmb(); 4106 qla2x00_start_iocbs(vha, req); 4107 queuing_error: 4108 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4109 4110 return rval; 4111 } 4112