1 /* 2 * QLogic Fibre Channel HBA Driver 3 * Copyright (c) 2003-2014 QLogic Corporation 4 * 5 * See LICENSE.qla2xxx for copyright and licensing details. 6 */ 7 #include "qla_def.h" 8 #include "qla_target.h" 9 10 #include <linux/blkdev.h> 11 #include <linux/delay.h> 12 13 #include <scsi/scsi_tcq.h> 14 15 /** 16 * qla2x00_get_cmd_direction() - Determine control_flag data direction. 17 * @sp: SCSI command 18 * 19 * Returns the proper CF_* direction based on CDB. 20 */ 21 static inline uint16_t 22 qla2x00_get_cmd_direction(srb_t *sp) 23 { 24 uint16_t cflags; 25 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 26 struct scsi_qla_host *vha = sp->vha; 27 28 cflags = 0; 29 30 /* Set transfer direction */ 31 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 32 cflags = CF_WRITE; 33 vha->qla_stats.output_bytes += scsi_bufflen(cmd); 34 vha->qla_stats.output_requests++; 35 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 36 cflags = CF_READ; 37 vha->qla_stats.input_bytes += scsi_bufflen(cmd); 38 vha->qla_stats.input_requests++; 39 } 40 return (cflags); 41 } 42 43 /** 44 * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and 45 * Continuation Type 0 IOCBs to allocate. 46 * 47 * @dsds: number of data segment decriptors needed 48 * 49 * Returns the number of IOCB entries needed to store @dsds. 50 */ 51 uint16_t 52 qla2x00_calc_iocbs_32(uint16_t dsds) 53 { 54 uint16_t iocbs; 55 56 iocbs = 1; 57 if (dsds > 3) { 58 iocbs += (dsds - 3) / 7; 59 if ((dsds - 3) % 7) 60 iocbs++; 61 } 62 return (iocbs); 63 } 64 65 /** 66 * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and 67 * Continuation Type 1 IOCBs to allocate. 68 * 69 * @dsds: number of data segment decriptors needed 70 * 71 * Returns the number of IOCB entries needed to store @dsds. 72 */ 73 uint16_t 74 qla2x00_calc_iocbs_64(uint16_t dsds) 75 { 76 uint16_t iocbs; 77 78 iocbs = 1; 79 if (dsds > 2) { 80 iocbs += (dsds - 2) / 5; 81 if ((dsds - 2) % 5) 82 iocbs++; 83 } 84 return (iocbs); 85 } 86 87 /** 88 * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. 89 * @vha: HA context 90 * 91 * Returns a pointer to the Continuation Type 0 IOCB packet. 92 */ 93 static inline cont_entry_t * 94 qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) 95 { 96 cont_entry_t *cont_pkt; 97 struct req_que *req = vha->req; 98 /* Adjust ring index. */ 99 req->ring_index++; 100 if (req->ring_index == req->length) { 101 req->ring_index = 0; 102 req->ring_ptr = req->ring; 103 } else { 104 req->ring_ptr++; 105 } 106 107 cont_pkt = (cont_entry_t *)req->ring_ptr; 108 109 /* Load packet defaults. */ 110 put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_type); 111 112 return (cont_pkt); 113 } 114 115 /** 116 * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. 117 * @vha: HA context 118 * @req: request queue 119 * 120 * Returns a pointer to the continuation type 1 IOCB packet. 121 */ 122 static inline cont_a64_entry_t * 123 qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) 124 { 125 cont_a64_entry_t *cont_pkt; 126 127 /* Adjust ring index. */ 128 req->ring_index++; 129 if (req->ring_index == req->length) { 130 req->ring_index = 0; 131 req->ring_ptr = req->ring; 132 } else { 133 req->ring_ptr++; 134 } 135 136 cont_pkt = (cont_a64_entry_t *)req->ring_ptr; 137 138 /* Load packet defaults. */ 139 put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 : 140 CONTINUE_A64_TYPE, &cont_pkt->entry_type); 141 142 return (cont_pkt); 143 } 144 145 inline int 146 qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) 147 { 148 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 149 uint8_t guard = scsi_host_get_guard(cmd->device->host); 150 151 /* We always use DIFF Bundling for best performance */ 152 *fw_prot_opts = 0; 153 154 /* Translate SCSI opcode to a protection opcode */ 155 switch (scsi_get_prot_op(cmd)) { 156 case SCSI_PROT_READ_STRIP: 157 *fw_prot_opts |= PO_MODE_DIF_REMOVE; 158 break; 159 case SCSI_PROT_WRITE_INSERT: 160 *fw_prot_opts |= PO_MODE_DIF_INSERT; 161 break; 162 case SCSI_PROT_READ_INSERT: 163 *fw_prot_opts |= PO_MODE_DIF_INSERT; 164 break; 165 case SCSI_PROT_WRITE_STRIP: 166 *fw_prot_opts |= PO_MODE_DIF_REMOVE; 167 break; 168 case SCSI_PROT_READ_PASS: 169 case SCSI_PROT_WRITE_PASS: 170 if (guard & SHOST_DIX_GUARD_IP) 171 *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM; 172 else 173 *fw_prot_opts |= PO_MODE_DIF_PASS; 174 break; 175 default: /* Normal Request */ 176 *fw_prot_opts |= PO_MODE_DIF_PASS; 177 break; 178 } 179 180 return scsi_prot_sg_count(cmd); 181 } 182 183 /* 184 * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit 185 * capable IOCB types. 186 * 187 * @sp: SRB command to process 188 * @cmd_pkt: Command type 2 IOCB 189 * @tot_dsds: Total number of segments to transfer 190 */ 191 void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, 192 uint16_t tot_dsds) 193 { 194 uint16_t avail_dsds; 195 struct dsd32 *cur_dsd; 196 scsi_qla_host_t *vha; 197 struct scsi_cmnd *cmd; 198 struct scatterlist *sg; 199 int i; 200 201 cmd = GET_CMD_SP(sp); 202 203 /* Update entry type to indicate Command Type 2 IOCB */ 204 put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_type); 205 206 /* No data transfer */ 207 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 208 cmd_pkt->byte_count = cpu_to_le32(0); 209 return; 210 } 211 212 vha = sp->vha; 213 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); 214 215 /* Three DSDs are available in the Command Type 2 IOCB */ 216 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32); 217 cur_dsd = cmd_pkt->dsd32; 218 219 /* Load data segments */ 220 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 221 cont_entry_t *cont_pkt; 222 223 /* Allocate additional continuation packets? */ 224 if (avail_dsds == 0) { 225 /* 226 * Seven DSDs are available in the Continuation 227 * Type 0 IOCB. 228 */ 229 cont_pkt = qla2x00_prep_cont_type0_iocb(vha); 230 cur_dsd = cont_pkt->dsd; 231 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 232 } 233 234 append_dsd32(&cur_dsd, sg); 235 avail_dsds--; 236 } 237 } 238 239 /** 240 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit 241 * capable IOCB types. 242 * 243 * @sp: SRB command to process 244 * @cmd_pkt: Command type 3 IOCB 245 * @tot_dsds: Total number of segments to transfer 246 */ 247 void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, 248 uint16_t tot_dsds) 249 { 250 uint16_t avail_dsds; 251 struct dsd64 *cur_dsd; 252 scsi_qla_host_t *vha; 253 struct scsi_cmnd *cmd; 254 struct scatterlist *sg; 255 int i; 256 257 cmd = GET_CMD_SP(sp); 258 259 /* Update entry type to indicate Command Type 3 IOCB */ 260 put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_type); 261 262 /* No data transfer */ 263 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 264 cmd_pkt->byte_count = cpu_to_le32(0); 265 return; 266 } 267 268 vha = sp->vha; 269 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); 270 271 /* Two DSDs are available in the Command Type 3 IOCB */ 272 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64); 273 cur_dsd = cmd_pkt->dsd64; 274 275 /* Load data segments */ 276 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 277 cont_a64_entry_t *cont_pkt; 278 279 /* Allocate additional continuation packets? */ 280 if (avail_dsds == 0) { 281 /* 282 * Five DSDs are available in the Continuation 283 * Type 1 IOCB. 284 */ 285 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 286 cur_dsd = cont_pkt->dsd; 287 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 288 } 289 290 append_dsd64(&cur_dsd, sg); 291 avail_dsds--; 292 } 293 } 294 295 /* 296 * Find the first handle that is not in use, starting from 297 * req->current_outstanding_cmd + 1. The caller must hold the lock that is 298 * associated with @req. 299 */ 300 uint32_t qla2xxx_get_next_handle(struct req_que *req) 301 { 302 uint32_t index, handle = req->current_outstanding_cmd; 303 304 for (index = 1; index < req->num_outstanding_cmds; index++) { 305 handle++; 306 if (handle == req->num_outstanding_cmds) 307 handle = 1; 308 if (!req->outstanding_cmds[handle]) 309 return handle; 310 } 311 312 return 0; 313 } 314 315 /** 316 * qla2x00_start_scsi() - Send a SCSI command to the ISP 317 * @sp: command to send to the ISP 318 * 319 * Returns non-zero if a failure occurred, else zero. 320 */ 321 int 322 qla2x00_start_scsi(srb_t *sp) 323 { 324 int nseg; 325 unsigned long flags; 326 scsi_qla_host_t *vha; 327 struct scsi_cmnd *cmd; 328 uint32_t *clr_ptr; 329 uint32_t handle; 330 cmd_entry_t *cmd_pkt; 331 uint16_t cnt; 332 uint16_t req_cnt; 333 uint16_t tot_dsds; 334 struct device_reg_2xxx __iomem *reg; 335 struct qla_hw_data *ha; 336 struct req_que *req; 337 struct rsp_que *rsp; 338 339 /* Setup device pointers. */ 340 vha = sp->vha; 341 ha = vha->hw; 342 reg = &ha->iobase->isp; 343 cmd = GET_CMD_SP(sp); 344 req = ha->req_q_map[0]; 345 rsp = ha->rsp_q_map[0]; 346 /* So we know we haven't pci_map'ed anything yet */ 347 tot_dsds = 0; 348 349 /* Send marker if required */ 350 if (vha->marker_needed != 0) { 351 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 352 QLA_SUCCESS) { 353 return (QLA_FUNCTION_FAILED); 354 } 355 vha->marker_needed = 0; 356 } 357 358 /* Acquire ring specific lock */ 359 spin_lock_irqsave(&ha->hardware_lock, flags); 360 361 handle = qla2xxx_get_next_handle(req); 362 if (handle == 0) 363 goto queuing_error; 364 365 /* Map the sg table so we have an accurate count of sg entries needed */ 366 if (scsi_sg_count(cmd)) { 367 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 368 scsi_sg_count(cmd), cmd->sc_data_direction); 369 if (unlikely(!nseg)) 370 goto queuing_error; 371 } else 372 nseg = 0; 373 374 tot_dsds = nseg; 375 376 /* Calculate the number of request entries needed. */ 377 req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); 378 if (req->cnt < (req_cnt + 2)) { 379 cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); 380 if (req->ring_index < cnt) 381 req->cnt = cnt - req->ring_index; 382 else 383 req->cnt = req->length - 384 (req->ring_index - cnt); 385 /* If still no head room then bail out */ 386 if (req->cnt < (req_cnt + 2)) 387 goto queuing_error; 388 } 389 390 /* Build command packet */ 391 req->current_outstanding_cmd = handle; 392 req->outstanding_cmds[handle] = sp; 393 sp->handle = handle; 394 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 395 req->cnt -= req_cnt; 396 397 cmd_pkt = (cmd_entry_t *)req->ring_ptr; 398 cmd_pkt->handle = handle; 399 /* Zero out remaining portion of packet. */ 400 clr_ptr = (uint32_t *)cmd_pkt + 2; 401 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 402 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 403 404 /* Set target ID and LUN number*/ 405 SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); 406 cmd_pkt->lun = cpu_to_le16(cmd->device->lun); 407 cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG); 408 409 /* Load SCSI command packet. */ 410 memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); 411 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 412 413 /* Build IOCB segments */ 414 ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); 415 416 /* Set total data segment count. */ 417 cmd_pkt->entry_count = (uint8_t)req_cnt; 418 wmb(); 419 420 /* Adjust ring index. */ 421 req->ring_index++; 422 if (req->ring_index == req->length) { 423 req->ring_index = 0; 424 req->ring_ptr = req->ring; 425 } else 426 req->ring_ptr++; 427 428 sp->flags |= SRB_DMA_VALID; 429 430 /* Set chip new ring index. */ 431 WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); 432 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ 433 434 /* Manage unprocessed RIO/ZIO commands in response queue. */ 435 if (vha->flags.process_response_queue && 436 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 437 qla2x00_process_response_queue(rsp); 438 439 spin_unlock_irqrestore(&ha->hardware_lock, flags); 440 return (QLA_SUCCESS); 441 442 queuing_error: 443 if (tot_dsds) 444 scsi_dma_unmap(cmd); 445 446 spin_unlock_irqrestore(&ha->hardware_lock, flags); 447 448 return (QLA_FUNCTION_FAILED); 449 } 450 451 /** 452 * qla2x00_start_iocbs() - Execute the IOCB command 453 * @vha: HA context 454 * @req: request queue 455 */ 456 void 457 qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) 458 { 459 struct qla_hw_data *ha = vha->hw; 460 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 461 462 if (IS_P3P_TYPE(ha)) { 463 qla82xx_start_iocbs(vha); 464 } else { 465 /* Adjust ring index. */ 466 req->ring_index++; 467 if (req->ring_index == req->length) { 468 req->ring_index = 0; 469 req->ring_ptr = req->ring; 470 } else 471 req->ring_ptr++; 472 473 /* Set chip new ring index. */ 474 if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) { 475 WRT_REG_DWORD(req->req_q_in, req->ring_index); 476 } else if (IS_QLA83XX(ha)) { 477 WRT_REG_DWORD(req->req_q_in, req->ring_index); 478 RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); 479 } else if (IS_QLAFX00(ha)) { 480 WRT_REG_DWORD(®->ispfx00.req_q_in, req->ring_index); 481 RD_REG_DWORD_RELAXED(®->ispfx00.req_q_in); 482 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); 483 } else if (IS_FWI2_CAPABLE(ha)) { 484 WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); 485 RD_REG_DWORD_RELAXED(®->isp24.req_q_in); 486 } else { 487 WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), 488 req->ring_index); 489 RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); 490 } 491 } 492 } 493 494 /** 495 * qla2x00_marker() - Send a marker IOCB to the firmware. 496 * @vha: HA context 497 * @qpair: queue pair pointer 498 * @loop_id: loop ID 499 * @lun: LUN 500 * @type: marker modifier 501 * 502 * Can be called from both normal and interrupt context. 503 * 504 * Returns non-zero if a failure occurred, else zero. 505 */ 506 static int 507 __qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair, 508 uint16_t loop_id, uint64_t lun, uint8_t type) 509 { 510 mrk_entry_t *mrk; 511 struct mrk_entry_24xx *mrk24 = NULL; 512 struct req_que *req = qpair->req; 513 struct qla_hw_data *ha = vha->hw; 514 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 515 516 mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, NULL); 517 if (mrk == NULL) { 518 ql_log(ql_log_warn, base_vha, 0x3026, 519 "Failed to allocate Marker IOCB.\n"); 520 521 return (QLA_FUNCTION_FAILED); 522 } 523 524 mrk->entry_type = MARKER_TYPE; 525 mrk->modifier = type; 526 if (type != MK_SYNC_ALL) { 527 if (IS_FWI2_CAPABLE(ha)) { 528 mrk24 = (struct mrk_entry_24xx *) mrk; 529 mrk24->nport_handle = cpu_to_le16(loop_id); 530 int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun); 531 host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); 532 mrk24->vp_index = vha->vp_idx; 533 mrk24->handle = make_handle(req->id, mrk24->handle); 534 } else { 535 SET_TARGET_ID(ha, mrk->target, loop_id); 536 mrk->lun = cpu_to_le16((uint16_t)lun); 537 } 538 } 539 wmb(); 540 541 qla2x00_start_iocbs(vha, req); 542 543 return (QLA_SUCCESS); 544 } 545 546 int 547 qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair, 548 uint16_t loop_id, uint64_t lun, uint8_t type) 549 { 550 int ret; 551 unsigned long flags = 0; 552 553 spin_lock_irqsave(qpair->qp_lock_ptr, flags); 554 ret = __qla2x00_marker(vha, qpair, loop_id, lun, type); 555 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); 556 557 return (ret); 558 } 559 560 /* 561 * qla2x00_issue_marker 562 * 563 * Issue marker 564 * Caller CAN have hardware lock held as specified by ha_locked parameter. 565 * Might release it, then reaquire. 566 */ 567 int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) 568 { 569 if (ha_locked) { 570 if (__qla2x00_marker(vha, vha->hw->base_qpair, 0, 0, 571 MK_SYNC_ALL) != QLA_SUCCESS) 572 return QLA_FUNCTION_FAILED; 573 } else { 574 if (qla2x00_marker(vha, vha->hw->base_qpair, 0, 0, 575 MK_SYNC_ALL) != QLA_SUCCESS) 576 return QLA_FUNCTION_FAILED; 577 } 578 vha->marker_needed = 0; 579 580 return QLA_SUCCESS; 581 } 582 583 static inline int 584 qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, 585 uint16_t tot_dsds) 586 { 587 struct dsd64 *cur_dsd = NULL, *next_dsd; 588 scsi_qla_host_t *vha; 589 struct qla_hw_data *ha; 590 struct scsi_cmnd *cmd; 591 struct scatterlist *cur_seg; 592 uint8_t avail_dsds; 593 uint8_t first_iocb = 1; 594 uint32_t dsd_list_len; 595 struct dsd_dma *dsd_ptr; 596 struct ct6_dsd *ctx; 597 598 cmd = GET_CMD_SP(sp); 599 600 /* Update entry type to indicate Command Type 3 IOCB */ 601 put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type); 602 603 /* No data transfer */ 604 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 605 cmd_pkt->byte_count = cpu_to_le32(0); 606 return 0; 607 } 608 609 vha = sp->vha; 610 ha = vha->hw; 611 612 /* Set transfer direction */ 613 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 614 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); 615 vha->qla_stats.output_bytes += scsi_bufflen(cmd); 616 vha->qla_stats.output_requests++; 617 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 618 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); 619 vha->qla_stats.input_bytes += scsi_bufflen(cmd); 620 vha->qla_stats.input_requests++; 621 } 622 623 cur_seg = scsi_sglist(cmd); 624 ctx = sp->u.scmd.ct6_ctx; 625 626 while (tot_dsds) { 627 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? 628 QLA_DSDS_PER_IOCB : tot_dsds; 629 tot_dsds -= avail_dsds; 630 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; 631 632 dsd_ptr = list_first_entry(&ha->gbl_dsd_list, 633 struct dsd_dma, list); 634 next_dsd = dsd_ptr->dsd_addr; 635 list_del(&dsd_ptr->list); 636 ha->gbl_dsd_avail--; 637 list_add_tail(&dsd_ptr->list, &ctx->dsd_list); 638 ctx->dsd_use_cnt++; 639 ha->gbl_dsd_inuse++; 640 641 if (first_iocb) { 642 first_iocb = 0; 643 put_unaligned_le64(dsd_ptr->dsd_list_dma, 644 &cmd_pkt->fcp_dsd.address); 645 cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len); 646 } else { 647 put_unaligned_le64(dsd_ptr->dsd_list_dma, 648 &cur_dsd->address); 649 cur_dsd->length = cpu_to_le32(dsd_list_len); 650 cur_dsd++; 651 } 652 cur_dsd = next_dsd; 653 while (avail_dsds) { 654 append_dsd64(&cur_dsd, cur_seg); 655 cur_seg = sg_next(cur_seg); 656 avail_dsds--; 657 } 658 } 659 660 /* Null termination */ 661 cur_dsd->address = 0; 662 cur_dsd->length = 0; 663 cur_dsd++; 664 cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; 665 return 0; 666 } 667 668 /* 669 * qla24xx_calc_dsd_lists() - Determine number of DSD list required 670 * for Command Type 6. 671 * 672 * @dsds: number of data segment decriptors needed 673 * 674 * Returns the number of dsd list needed to store @dsds. 675 */ 676 static inline uint16_t 677 qla24xx_calc_dsd_lists(uint16_t dsds) 678 { 679 uint16_t dsd_lists = 0; 680 681 dsd_lists = (dsds/QLA_DSDS_PER_IOCB); 682 if (dsds % QLA_DSDS_PER_IOCB) 683 dsd_lists++; 684 return dsd_lists; 685 } 686 687 688 /** 689 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 690 * IOCB types. 691 * 692 * @sp: SRB command to process 693 * @cmd_pkt: Command type 3 IOCB 694 * @tot_dsds: Total number of segments to transfer 695 * @req: pointer to request queue 696 */ 697 inline void 698 qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, 699 uint16_t tot_dsds, struct req_que *req) 700 { 701 uint16_t avail_dsds; 702 struct dsd64 *cur_dsd; 703 scsi_qla_host_t *vha; 704 struct scsi_cmnd *cmd; 705 struct scatterlist *sg; 706 int i; 707 708 cmd = GET_CMD_SP(sp); 709 710 /* Update entry type to indicate Command Type 3 IOCB */ 711 put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type); 712 713 /* No data transfer */ 714 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 715 cmd_pkt->byte_count = cpu_to_le32(0); 716 return; 717 } 718 719 vha = sp->vha; 720 721 /* Set transfer direction */ 722 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 723 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA); 724 vha->qla_stats.output_bytes += scsi_bufflen(cmd); 725 vha->qla_stats.output_requests++; 726 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 727 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA); 728 vha->qla_stats.input_bytes += scsi_bufflen(cmd); 729 vha->qla_stats.input_requests++; 730 } 731 732 /* One DSD is available in the Command Type 3 IOCB */ 733 avail_dsds = 1; 734 cur_dsd = &cmd_pkt->dsd; 735 736 /* Load data segments */ 737 738 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 739 cont_a64_entry_t *cont_pkt; 740 741 /* Allocate additional continuation packets? */ 742 if (avail_dsds == 0) { 743 /* 744 * Five DSDs are available in the Continuation 745 * Type 1 IOCB. 746 */ 747 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req); 748 cur_dsd = cont_pkt->dsd; 749 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 750 } 751 752 append_dsd64(&cur_dsd, sg); 753 avail_dsds--; 754 } 755 } 756 757 struct fw_dif_context { 758 uint32_t ref_tag; 759 uint16_t app_tag; 760 uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ 761 uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ 762 }; 763 764 /* 765 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command 766 * 767 */ 768 static inline void 769 qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, 770 unsigned int protcnt) 771 { 772 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 773 774 switch (scsi_get_prot_type(cmd)) { 775 case SCSI_PROT_DIF_TYPE0: 776 /* 777 * No check for ql2xenablehba_err_chk, as it would be an 778 * I/O error if hba tag generation is not done. 779 */ 780 pkt->ref_tag = cpu_to_le32((uint32_t) 781 (0xffffffff & scsi_get_lba(cmd))); 782 783 if (!qla2x00_hba_err_chk_enabled(sp)) 784 break; 785 786 pkt->ref_tag_mask[0] = 0xff; 787 pkt->ref_tag_mask[1] = 0xff; 788 pkt->ref_tag_mask[2] = 0xff; 789 pkt->ref_tag_mask[3] = 0xff; 790 break; 791 792 /* 793 * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to 794 * match LBA in CDB + N 795 */ 796 case SCSI_PROT_DIF_TYPE2: 797 pkt->app_tag = cpu_to_le16(0); 798 pkt->app_tag_mask[0] = 0x0; 799 pkt->app_tag_mask[1] = 0x0; 800 801 pkt->ref_tag = cpu_to_le32((uint32_t) 802 (0xffffffff & scsi_get_lba(cmd))); 803 804 if (!qla2x00_hba_err_chk_enabled(sp)) 805 break; 806 807 /* enable ALL bytes of the ref tag */ 808 pkt->ref_tag_mask[0] = 0xff; 809 pkt->ref_tag_mask[1] = 0xff; 810 pkt->ref_tag_mask[2] = 0xff; 811 pkt->ref_tag_mask[3] = 0xff; 812 break; 813 814 /* For Type 3 protection: 16 bit GUARD only */ 815 case SCSI_PROT_DIF_TYPE3: 816 pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = 817 pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = 818 0x00; 819 break; 820 821 /* 822 * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and 823 * 16 bit app tag. 824 */ 825 case SCSI_PROT_DIF_TYPE1: 826 pkt->ref_tag = cpu_to_le32((uint32_t) 827 (0xffffffff & scsi_get_lba(cmd))); 828 pkt->app_tag = cpu_to_le16(0); 829 pkt->app_tag_mask[0] = 0x0; 830 pkt->app_tag_mask[1] = 0x0; 831 832 if (!qla2x00_hba_err_chk_enabled(sp)) 833 break; 834 835 /* enable ALL bytes of the ref tag */ 836 pkt->ref_tag_mask[0] = 0xff; 837 pkt->ref_tag_mask[1] = 0xff; 838 pkt->ref_tag_mask[2] = 0xff; 839 pkt->ref_tag_mask[3] = 0xff; 840 break; 841 } 842 } 843 844 int 845 qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, 846 uint32_t *partial) 847 { 848 struct scatterlist *sg; 849 uint32_t cumulative_partial, sg_len; 850 dma_addr_t sg_dma_addr; 851 852 if (sgx->num_bytes == sgx->tot_bytes) 853 return 0; 854 855 sg = sgx->cur_sg; 856 cumulative_partial = sgx->tot_partial; 857 858 sg_dma_addr = sg_dma_address(sg); 859 sg_len = sg_dma_len(sg); 860 861 sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; 862 863 if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { 864 sgx->dma_len = (blk_sz - cumulative_partial); 865 sgx->tot_partial = 0; 866 sgx->num_bytes += blk_sz; 867 *partial = 0; 868 } else { 869 sgx->dma_len = sg_len - sgx->bytes_consumed; 870 sgx->tot_partial += sgx->dma_len; 871 *partial = 1; 872 } 873 874 sgx->bytes_consumed += sgx->dma_len; 875 876 if (sg_len == sgx->bytes_consumed) { 877 sg = sg_next(sg); 878 sgx->num_sg++; 879 sgx->cur_sg = sg; 880 sgx->bytes_consumed = 0; 881 } 882 883 return 1; 884 } 885 886 int 887 qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, 888 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) 889 { 890 void *next_dsd; 891 uint8_t avail_dsds = 0; 892 uint32_t dsd_list_len; 893 struct dsd_dma *dsd_ptr; 894 struct scatterlist *sg_prot; 895 struct dsd64 *cur_dsd = dsd; 896 uint16_t used_dsds = tot_dsds; 897 uint32_t prot_int; /* protection interval */ 898 uint32_t partial; 899 struct qla2_sgx sgx; 900 dma_addr_t sle_dma; 901 uint32_t sle_dma_len, tot_prot_dma_len = 0; 902 struct scsi_cmnd *cmd; 903 904 memset(&sgx, 0, sizeof(struct qla2_sgx)); 905 if (sp) { 906 cmd = GET_CMD_SP(sp); 907 prot_int = cmd->device->sector_size; 908 909 sgx.tot_bytes = scsi_bufflen(cmd); 910 sgx.cur_sg = scsi_sglist(cmd); 911 sgx.sp = sp; 912 913 sg_prot = scsi_prot_sglist(cmd); 914 } else if (tc) { 915 prot_int = tc->blk_sz; 916 sgx.tot_bytes = tc->bufflen; 917 sgx.cur_sg = tc->sg; 918 sg_prot = tc->prot_sg; 919 } else { 920 BUG(); 921 return 1; 922 } 923 924 while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { 925 926 sle_dma = sgx.dma_addr; 927 sle_dma_len = sgx.dma_len; 928 alloc_and_fill: 929 /* Allocate additional continuation packets? */ 930 if (avail_dsds == 0) { 931 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 932 QLA_DSDS_PER_IOCB : used_dsds; 933 dsd_list_len = (avail_dsds + 1) * 12; 934 used_dsds -= avail_dsds; 935 936 /* allocate tracking DS */ 937 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 938 if (!dsd_ptr) 939 return 1; 940 941 /* allocate new list */ 942 dsd_ptr->dsd_addr = next_dsd = 943 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 944 &dsd_ptr->dsd_list_dma); 945 946 if (!next_dsd) { 947 /* 948 * Need to cleanup only this dsd_ptr, rest 949 * will be done by sp_free_dma() 950 */ 951 kfree(dsd_ptr); 952 return 1; 953 } 954 955 if (sp) { 956 list_add_tail(&dsd_ptr->list, 957 &sp->u.scmd.crc_ctx->dsd_list); 958 959 sp->flags |= SRB_CRC_CTX_DSD_VALID; 960 } else { 961 list_add_tail(&dsd_ptr->list, 962 &(tc->ctx->dsd_list)); 963 *tc->ctx_dsd_alloced = 1; 964 } 965 966 967 /* add new list to cmd iocb or last list */ 968 put_unaligned_le64(dsd_ptr->dsd_list_dma, 969 &cur_dsd->address); 970 cur_dsd->length = cpu_to_le32(dsd_list_len); 971 cur_dsd = next_dsd; 972 } 973 put_unaligned_le64(sle_dma, &cur_dsd->address); 974 cur_dsd->length = cpu_to_le32(sle_dma_len); 975 cur_dsd++; 976 avail_dsds--; 977 978 if (partial == 0) { 979 /* Got a full protection interval */ 980 sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; 981 sle_dma_len = 8; 982 983 tot_prot_dma_len += sle_dma_len; 984 if (tot_prot_dma_len == sg_dma_len(sg_prot)) { 985 tot_prot_dma_len = 0; 986 sg_prot = sg_next(sg_prot); 987 } 988 989 partial = 1; /* So as to not re-enter this block */ 990 goto alloc_and_fill; 991 } 992 } 993 /* Null termination */ 994 cur_dsd->address = 0; 995 cur_dsd->length = 0; 996 cur_dsd++; 997 return 0; 998 } 999 1000 int 1001 qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, 1002 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) 1003 { 1004 void *next_dsd; 1005 uint8_t avail_dsds = 0; 1006 uint32_t dsd_list_len; 1007 struct dsd_dma *dsd_ptr; 1008 struct scatterlist *sg, *sgl; 1009 struct dsd64 *cur_dsd = dsd; 1010 int i; 1011 uint16_t used_dsds = tot_dsds; 1012 struct scsi_cmnd *cmd; 1013 1014 if (sp) { 1015 cmd = GET_CMD_SP(sp); 1016 sgl = scsi_sglist(cmd); 1017 } else if (tc) { 1018 sgl = tc->sg; 1019 } else { 1020 BUG(); 1021 return 1; 1022 } 1023 1024 1025 for_each_sg(sgl, sg, tot_dsds, i) { 1026 /* Allocate additional continuation packets? */ 1027 if (avail_dsds == 0) { 1028 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1029 QLA_DSDS_PER_IOCB : used_dsds; 1030 dsd_list_len = (avail_dsds + 1) * 12; 1031 used_dsds -= avail_dsds; 1032 1033 /* allocate tracking DS */ 1034 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 1035 if (!dsd_ptr) 1036 return 1; 1037 1038 /* allocate new list */ 1039 dsd_ptr->dsd_addr = next_dsd = 1040 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1041 &dsd_ptr->dsd_list_dma); 1042 1043 if (!next_dsd) { 1044 /* 1045 * Need to cleanup only this dsd_ptr, rest 1046 * will be done by sp_free_dma() 1047 */ 1048 kfree(dsd_ptr); 1049 return 1; 1050 } 1051 1052 if (sp) { 1053 list_add_tail(&dsd_ptr->list, 1054 &sp->u.scmd.crc_ctx->dsd_list); 1055 1056 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1057 } else { 1058 list_add_tail(&dsd_ptr->list, 1059 &(tc->ctx->dsd_list)); 1060 *tc->ctx_dsd_alloced = 1; 1061 } 1062 1063 /* add new list to cmd iocb or last list */ 1064 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1065 &cur_dsd->address); 1066 cur_dsd->length = cpu_to_le32(dsd_list_len); 1067 cur_dsd = next_dsd; 1068 } 1069 append_dsd64(&cur_dsd, sg); 1070 avail_dsds--; 1071 1072 } 1073 /* Null termination */ 1074 cur_dsd->address = 0; 1075 cur_dsd->length = 0; 1076 cur_dsd++; 1077 return 0; 1078 } 1079 1080 int 1081 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, 1082 struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc) 1083 { 1084 struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd; 1085 struct scatterlist *sg, *sgl; 1086 struct crc_context *difctx = NULL; 1087 struct scsi_qla_host *vha; 1088 uint dsd_list_len; 1089 uint avail_dsds = 0; 1090 uint used_dsds = tot_dsds; 1091 bool dif_local_dma_alloc = false; 1092 bool direction_to_device = false; 1093 int i; 1094 1095 if (sp) { 1096 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1097 1098 sgl = scsi_prot_sglist(cmd); 1099 vha = sp->vha; 1100 difctx = sp->u.scmd.crc_ctx; 1101 direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE; 1102 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021, 1103 "%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n", 1104 __func__, cmd, difctx, sp); 1105 } else if (tc) { 1106 vha = tc->vha; 1107 sgl = tc->prot_sg; 1108 difctx = tc->ctx; 1109 direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE; 1110 } else { 1111 BUG(); 1112 return 1; 1113 } 1114 1115 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021, 1116 "%s: enter (write=%u)\n", __func__, direction_to_device); 1117 1118 /* if initiator doing write or target doing read */ 1119 if (direction_to_device) { 1120 for_each_sg(sgl, sg, tot_dsds, i) { 1121 u64 sle_phys = sg_phys(sg); 1122 1123 /* If SGE addr + len flips bits in upper 32-bits */ 1124 if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) { 1125 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022, 1126 "%s: page boundary crossing (phys=%llx len=%x)\n", 1127 __func__, sle_phys, sg->length); 1128 1129 if (difctx) { 1130 ha->dif_bundle_crossed_pages++; 1131 dif_local_dma_alloc = true; 1132 } else { 1133 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, 1134 vha, 0xe022, 1135 "%s: difctx pointer is NULL\n", 1136 __func__); 1137 } 1138 break; 1139 } 1140 } 1141 ha->dif_bundle_writes++; 1142 } else { 1143 ha->dif_bundle_reads++; 1144 } 1145 1146 if (ql2xdifbundlinginternalbuffers) 1147 dif_local_dma_alloc = direction_to_device; 1148 1149 if (dif_local_dma_alloc) { 1150 u32 track_difbundl_buf = 0; 1151 u32 ldma_sg_len = 0; 1152 u8 ldma_needed = 1; 1153 1154 difctx->no_dif_bundl = 0; 1155 difctx->dif_bundl_len = 0; 1156 1157 /* Track DSD buffers */ 1158 INIT_LIST_HEAD(&difctx->ldif_dsd_list); 1159 /* Track local DMA buffers */ 1160 INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list); 1161 1162 for_each_sg(sgl, sg, tot_dsds, i) { 1163 u32 sglen = sg_dma_len(sg); 1164 1165 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023, 1166 "%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n", 1167 __func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len, 1168 difctx->dif_bundl_len, ldma_needed); 1169 1170 while (sglen) { 1171 u32 xfrlen = 0; 1172 1173 if (ldma_needed) { 1174 /* 1175 * Allocate list item to store 1176 * the DMA buffers 1177 */ 1178 dsd_ptr = kzalloc(sizeof(*dsd_ptr), 1179 GFP_ATOMIC); 1180 if (!dsd_ptr) { 1181 ql_dbg(ql_dbg_tgt, vha, 0xe024, 1182 "%s: failed alloc dsd_ptr\n", 1183 __func__); 1184 return 1; 1185 } 1186 ha->dif_bundle_kallocs++; 1187 1188 /* allocate dma buffer */ 1189 dsd_ptr->dsd_addr = dma_pool_alloc 1190 (ha->dif_bundl_pool, GFP_ATOMIC, 1191 &dsd_ptr->dsd_list_dma); 1192 if (!dsd_ptr->dsd_addr) { 1193 ql_dbg(ql_dbg_tgt, vha, 0xe024, 1194 "%s: failed alloc ->dsd_ptr\n", 1195 __func__); 1196 /* 1197 * need to cleanup only this 1198 * dsd_ptr rest will be done 1199 * by sp_free_dma() 1200 */ 1201 kfree(dsd_ptr); 1202 ha->dif_bundle_kallocs--; 1203 return 1; 1204 } 1205 ha->dif_bundle_dma_allocs++; 1206 ldma_needed = 0; 1207 difctx->no_dif_bundl++; 1208 list_add_tail(&dsd_ptr->list, 1209 &difctx->ldif_dma_hndl_list); 1210 } 1211 1212 /* xfrlen is min of dma pool size and sglen */ 1213 xfrlen = (sglen > 1214 (DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ? 1215 DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len : 1216 sglen; 1217 1218 /* replace with local allocated dma buffer */ 1219 sg_pcopy_to_buffer(sgl, sg_nents(sgl), 1220 dsd_ptr->dsd_addr + ldma_sg_len, xfrlen, 1221 difctx->dif_bundl_len); 1222 difctx->dif_bundl_len += xfrlen; 1223 sglen -= xfrlen; 1224 ldma_sg_len += xfrlen; 1225 if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE || 1226 sg_is_last(sg)) { 1227 ldma_needed = 1; 1228 ldma_sg_len = 0; 1229 } 1230 } 1231 } 1232 1233 track_difbundl_buf = used_dsds = difctx->no_dif_bundl; 1234 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025, 1235 "dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n", 1236 difctx->dif_bundl_len, difctx->no_dif_bundl, 1237 track_difbundl_buf); 1238 1239 if (sp) 1240 sp->flags |= SRB_DIF_BUNDL_DMA_VALID; 1241 else 1242 tc->prot_flags = DIF_BUNDL_DMA_VALID; 1243 1244 list_for_each_entry_safe(dif_dsd, nxt_dsd, 1245 &difctx->ldif_dma_hndl_list, list) { 1246 u32 sglen = (difctx->dif_bundl_len > 1247 DIF_BUNDLING_DMA_POOL_SIZE) ? 1248 DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len; 1249 1250 BUG_ON(track_difbundl_buf == 0); 1251 1252 /* Allocate additional continuation packets? */ 1253 if (avail_dsds == 0) { 1254 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 1255 0xe024, 1256 "%s: adding continuation iocb's\n", 1257 __func__); 1258 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1259 QLA_DSDS_PER_IOCB : used_dsds; 1260 dsd_list_len = (avail_dsds + 1) * 12; 1261 used_dsds -= avail_dsds; 1262 1263 /* allocate tracking DS */ 1264 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); 1265 if (!dsd_ptr) { 1266 ql_dbg(ql_dbg_tgt, vha, 0xe026, 1267 "%s: failed alloc dsd_ptr\n", 1268 __func__); 1269 return 1; 1270 } 1271 ha->dif_bundle_kallocs++; 1272 1273 difctx->no_ldif_dsd++; 1274 /* allocate new list */ 1275 dsd_ptr->dsd_addr = 1276 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1277 &dsd_ptr->dsd_list_dma); 1278 if (!dsd_ptr->dsd_addr) { 1279 ql_dbg(ql_dbg_tgt, vha, 0xe026, 1280 "%s: failed alloc ->dsd_addr\n", 1281 __func__); 1282 /* 1283 * need to cleanup only this dsd_ptr 1284 * rest will be done by sp_free_dma() 1285 */ 1286 kfree(dsd_ptr); 1287 ha->dif_bundle_kallocs--; 1288 return 1; 1289 } 1290 ha->dif_bundle_dma_allocs++; 1291 1292 if (sp) { 1293 list_add_tail(&dsd_ptr->list, 1294 &difctx->ldif_dsd_list); 1295 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1296 } else { 1297 list_add_tail(&dsd_ptr->list, 1298 &difctx->ldif_dsd_list); 1299 tc->ctx_dsd_alloced = 1; 1300 } 1301 1302 /* add new list to cmd iocb or last list */ 1303 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1304 &cur_dsd->address); 1305 cur_dsd->length = cpu_to_le32(dsd_list_len); 1306 cur_dsd = dsd_ptr->dsd_addr; 1307 } 1308 put_unaligned_le64(dif_dsd->dsd_list_dma, 1309 &cur_dsd->address); 1310 cur_dsd->length = cpu_to_le32(sglen); 1311 cur_dsd++; 1312 avail_dsds--; 1313 difctx->dif_bundl_len -= sglen; 1314 track_difbundl_buf--; 1315 } 1316 1317 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026, 1318 "%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__, 1319 difctx->no_ldif_dsd, difctx->no_dif_bundl); 1320 } else { 1321 for_each_sg(sgl, sg, tot_dsds, i) { 1322 /* Allocate additional continuation packets? */ 1323 if (avail_dsds == 0) { 1324 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1325 QLA_DSDS_PER_IOCB : used_dsds; 1326 dsd_list_len = (avail_dsds + 1) * 12; 1327 used_dsds -= avail_dsds; 1328 1329 /* allocate tracking DS */ 1330 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); 1331 if (!dsd_ptr) { 1332 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, 1333 vha, 0xe027, 1334 "%s: failed alloc dsd_dma...\n", 1335 __func__); 1336 return 1; 1337 } 1338 1339 /* allocate new list */ 1340 dsd_ptr->dsd_addr = 1341 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1342 &dsd_ptr->dsd_list_dma); 1343 if (!dsd_ptr->dsd_addr) { 1344 /* need to cleanup only this dsd_ptr */ 1345 /* rest will be done by sp_free_dma() */ 1346 kfree(dsd_ptr); 1347 return 1; 1348 } 1349 1350 if (sp) { 1351 list_add_tail(&dsd_ptr->list, 1352 &difctx->dsd_list); 1353 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1354 } else { 1355 list_add_tail(&dsd_ptr->list, 1356 &difctx->dsd_list); 1357 tc->ctx_dsd_alloced = 1; 1358 } 1359 1360 /* add new list to cmd iocb or last list */ 1361 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1362 &cur_dsd->address); 1363 cur_dsd->length = cpu_to_le32(dsd_list_len); 1364 cur_dsd = dsd_ptr->dsd_addr; 1365 } 1366 append_dsd64(&cur_dsd, sg); 1367 avail_dsds--; 1368 } 1369 } 1370 /* Null termination */ 1371 cur_dsd->address = 0; 1372 cur_dsd->length = 0; 1373 cur_dsd++; 1374 return 0; 1375 } 1376 1377 /** 1378 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command 1379 * Type 6 IOCB types. 1380 * 1381 * @sp: SRB command to process 1382 * @cmd_pkt: Command type 3 IOCB 1383 * @tot_dsds: Total number of segments to transfer 1384 * @tot_prot_dsds: Total number of segments with protection information 1385 * @fw_prot_opts: Protection options to be passed to firmware 1386 */ 1387 static inline int 1388 qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, 1389 uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) 1390 { 1391 struct dsd64 *cur_dsd; 1392 uint32_t *fcp_dl; 1393 scsi_qla_host_t *vha; 1394 struct scsi_cmnd *cmd; 1395 uint32_t total_bytes = 0; 1396 uint32_t data_bytes; 1397 uint32_t dif_bytes; 1398 uint8_t bundling = 1; 1399 uint16_t blk_size; 1400 struct crc_context *crc_ctx_pkt = NULL; 1401 struct qla_hw_data *ha; 1402 uint8_t additional_fcpcdb_len; 1403 uint16_t fcp_cmnd_len; 1404 struct fcp_cmnd *fcp_cmnd; 1405 dma_addr_t crc_ctx_dma; 1406 1407 cmd = GET_CMD_SP(sp); 1408 1409 /* Update entry type to indicate Command Type CRC_2 IOCB */ 1410 put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type); 1411 1412 vha = sp->vha; 1413 ha = vha->hw; 1414 1415 /* No data transfer */ 1416 data_bytes = scsi_bufflen(cmd); 1417 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { 1418 cmd_pkt->byte_count = cpu_to_le32(0); 1419 return QLA_SUCCESS; 1420 } 1421 1422 cmd_pkt->vp_index = sp->vha->vp_idx; 1423 1424 /* Set transfer direction */ 1425 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 1426 cmd_pkt->control_flags = 1427 cpu_to_le16(CF_WRITE_DATA); 1428 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 1429 cmd_pkt->control_flags = 1430 cpu_to_le16(CF_READ_DATA); 1431 } 1432 1433 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1434 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || 1435 (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || 1436 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) 1437 bundling = 0; 1438 1439 /* Allocate CRC context from global pool */ 1440 crc_ctx_pkt = sp->u.scmd.crc_ctx = 1441 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); 1442 1443 if (!crc_ctx_pkt) 1444 goto crc_queuing_error; 1445 1446 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; 1447 1448 sp->flags |= SRB_CRC_CTX_DMA_VALID; 1449 1450 /* Set handle */ 1451 crc_ctx_pkt->handle = cmd_pkt->handle; 1452 1453 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); 1454 1455 qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) 1456 &crc_ctx_pkt->ref_tag, tot_prot_dsds); 1457 1458 put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address); 1459 cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; 1460 1461 /* Determine SCSI command length -- align to 4 byte boundary */ 1462 if (cmd->cmd_len > 16) { 1463 additional_fcpcdb_len = cmd->cmd_len - 16; 1464 if ((cmd->cmd_len % 4) != 0) { 1465 /* SCSI cmd > 16 bytes must be multiple of 4 */ 1466 goto crc_queuing_error; 1467 } 1468 fcp_cmnd_len = 12 + cmd->cmd_len + 4; 1469 } else { 1470 additional_fcpcdb_len = 0; 1471 fcp_cmnd_len = 12 + 16 + 4; 1472 } 1473 1474 fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; 1475 1476 fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; 1477 if (cmd->sc_data_direction == DMA_TO_DEVICE) 1478 fcp_cmnd->additional_cdb_len |= 1; 1479 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 1480 fcp_cmnd->additional_cdb_len |= 2; 1481 1482 int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); 1483 memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 1484 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); 1485 put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF, 1486 &cmd_pkt->fcp_cmnd_dseg_address); 1487 fcp_cmnd->task_management = 0; 1488 fcp_cmnd->task_attribute = TSK_SIMPLE; 1489 1490 cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ 1491 1492 /* Compute dif len and adjust data len to incude protection */ 1493 dif_bytes = 0; 1494 blk_size = cmd->device->sector_size; 1495 dif_bytes = (data_bytes / blk_size) * 8; 1496 1497 switch (scsi_get_prot_op(GET_CMD_SP(sp))) { 1498 case SCSI_PROT_READ_INSERT: 1499 case SCSI_PROT_WRITE_STRIP: 1500 total_bytes = data_bytes; 1501 data_bytes += dif_bytes; 1502 break; 1503 1504 case SCSI_PROT_READ_STRIP: 1505 case SCSI_PROT_WRITE_INSERT: 1506 case SCSI_PROT_READ_PASS: 1507 case SCSI_PROT_WRITE_PASS: 1508 total_bytes = data_bytes + dif_bytes; 1509 break; 1510 default: 1511 BUG(); 1512 } 1513 1514 if (!qla2x00_hba_err_chk_enabled(sp)) 1515 fw_prot_opts |= 0x10; /* Disable Guard tag checking */ 1516 /* HBA error checking enabled */ 1517 else if (IS_PI_UNINIT_CAPABLE(ha)) { 1518 if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) 1519 || (scsi_get_prot_type(GET_CMD_SP(sp)) == 1520 SCSI_PROT_DIF_TYPE2)) 1521 fw_prot_opts |= BIT_10; 1522 else if (scsi_get_prot_type(GET_CMD_SP(sp)) == 1523 SCSI_PROT_DIF_TYPE3) 1524 fw_prot_opts |= BIT_11; 1525 } 1526 1527 if (!bundling) { 1528 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0]; 1529 } else { 1530 /* 1531 * Configure Bundling if we need to fetch interlaving 1532 * protection PCI accesses 1533 */ 1534 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; 1535 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); 1536 crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - 1537 tot_prot_dsds); 1538 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0]; 1539 } 1540 1541 /* Finish the common fields of CRC pkt */ 1542 crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); 1543 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); 1544 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); 1545 crc_ctx_pkt->guard_seed = cpu_to_le16(0); 1546 /* Fibre channel byte count */ 1547 cmd_pkt->byte_count = cpu_to_le32(total_bytes); 1548 fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + 1549 additional_fcpcdb_len); 1550 *fcp_dl = htonl(total_bytes); 1551 1552 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { 1553 cmd_pkt->byte_count = cpu_to_le32(0); 1554 return QLA_SUCCESS; 1555 } 1556 /* Walks data segments */ 1557 1558 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); 1559 1560 if (!bundling && tot_prot_dsds) { 1561 if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, 1562 cur_dsd, tot_dsds, NULL)) 1563 goto crc_queuing_error; 1564 } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, 1565 (tot_dsds - tot_prot_dsds), NULL)) 1566 goto crc_queuing_error; 1567 1568 if (bundling && tot_prot_dsds) { 1569 /* Walks dif segments */ 1570 cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); 1571 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd; 1572 if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, 1573 tot_prot_dsds, NULL)) 1574 goto crc_queuing_error; 1575 } 1576 return QLA_SUCCESS; 1577 1578 crc_queuing_error: 1579 /* Cleanup will be performed by the caller */ 1580 1581 return QLA_FUNCTION_FAILED; 1582 } 1583 1584 /** 1585 * qla24xx_start_scsi() - Send a SCSI command to the ISP 1586 * @sp: command to send to the ISP 1587 * 1588 * Returns non-zero if a failure occurred, else zero. 1589 */ 1590 int 1591 qla24xx_start_scsi(srb_t *sp) 1592 { 1593 int nseg; 1594 unsigned long flags; 1595 uint32_t *clr_ptr; 1596 uint32_t handle; 1597 struct cmd_type_7 *cmd_pkt; 1598 uint16_t cnt; 1599 uint16_t req_cnt; 1600 uint16_t tot_dsds; 1601 struct req_que *req = NULL; 1602 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1603 struct scsi_qla_host *vha = sp->vha; 1604 struct qla_hw_data *ha = vha->hw; 1605 1606 /* Setup device pointers. */ 1607 req = vha->req; 1608 1609 /* So we know we haven't pci_map'ed anything yet */ 1610 tot_dsds = 0; 1611 1612 /* Send marker if required */ 1613 if (vha->marker_needed != 0) { 1614 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 1615 QLA_SUCCESS) 1616 return QLA_FUNCTION_FAILED; 1617 vha->marker_needed = 0; 1618 } 1619 1620 /* Acquire ring specific lock */ 1621 spin_lock_irqsave(&ha->hardware_lock, flags); 1622 1623 handle = qla2xxx_get_next_handle(req); 1624 if (handle == 0) 1625 goto queuing_error; 1626 1627 /* Map the sg table so we have an accurate count of sg entries needed */ 1628 if (scsi_sg_count(cmd)) { 1629 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1630 scsi_sg_count(cmd), cmd->sc_data_direction); 1631 if (unlikely(!nseg)) 1632 goto queuing_error; 1633 } else 1634 nseg = 0; 1635 1636 tot_dsds = nseg; 1637 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1638 if (req->cnt < (req_cnt + 2)) { 1639 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 1640 RD_REG_DWORD_RELAXED(req->req_q_out); 1641 if (req->ring_index < cnt) 1642 req->cnt = cnt - req->ring_index; 1643 else 1644 req->cnt = req->length - 1645 (req->ring_index - cnt); 1646 if (req->cnt < (req_cnt + 2)) 1647 goto queuing_error; 1648 } 1649 1650 /* Build command packet. */ 1651 req->current_outstanding_cmd = handle; 1652 req->outstanding_cmds[handle] = sp; 1653 sp->handle = handle; 1654 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1655 req->cnt -= req_cnt; 1656 1657 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1658 cmd_pkt->handle = make_handle(req->id, handle); 1659 1660 /* Zero out remaining portion of packet. */ 1661 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1662 clr_ptr = (uint32_t *)cmd_pkt + 2; 1663 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1664 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1665 1666 /* Set NPORT-ID and LUN number*/ 1667 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1668 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1669 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1670 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1671 cmd_pkt->vp_index = sp->vha->vp_idx; 1672 1673 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1674 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1675 1676 cmd_pkt->task = TSK_SIMPLE; 1677 1678 /* Load SCSI command packet. */ 1679 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 1680 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 1681 1682 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 1683 1684 /* Build IOCB segments */ 1685 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 1686 1687 /* Set total data segment count. */ 1688 cmd_pkt->entry_count = (uint8_t)req_cnt; 1689 wmb(); 1690 /* Adjust ring index. */ 1691 req->ring_index++; 1692 if (req->ring_index == req->length) { 1693 req->ring_index = 0; 1694 req->ring_ptr = req->ring; 1695 } else 1696 req->ring_ptr++; 1697 1698 sp->flags |= SRB_DMA_VALID; 1699 1700 /* Set chip new ring index. */ 1701 WRT_REG_DWORD(req->req_q_in, req->ring_index); 1702 1703 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1704 return QLA_SUCCESS; 1705 1706 queuing_error: 1707 if (tot_dsds) 1708 scsi_dma_unmap(cmd); 1709 1710 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1711 1712 return QLA_FUNCTION_FAILED; 1713 } 1714 1715 /** 1716 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP 1717 * @sp: command to send to the ISP 1718 * 1719 * Returns non-zero if a failure occurred, else zero. 1720 */ 1721 int 1722 qla24xx_dif_start_scsi(srb_t *sp) 1723 { 1724 int nseg; 1725 unsigned long flags; 1726 uint32_t *clr_ptr; 1727 uint32_t handle; 1728 uint16_t cnt; 1729 uint16_t req_cnt = 0; 1730 uint16_t tot_dsds; 1731 uint16_t tot_prot_dsds; 1732 uint16_t fw_prot_opts = 0; 1733 struct req_que *req = NULL; 1734 struct rsp_que *rsp = NULL; 1735 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1736 struct scsi_qla_host *vha = sp->vha; 1737 struct qla_hw_data *ha = vha->hw; 1738 struct cmd_type_crc_2 *cmd_pkt; 1739 uint32_t status = 0; 1740 1741 #define QDSS_GOT_Q_SPACE BIT_0 1742 1743 /* Only process protection or >16 cdb in this routine */ 1744 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 1745 if (cmd->cmd_len <= 16) 1746 return qla24xx_start_scsi(sp); 1747 } 1748 1749 /* Setup device pointers. */ 1750 req = vha->req; 1751 rsp = req->rsp; 1752 1753 /* So we know we haven't pci_map'ed anything yet */ 1754 tot_dsds = 0; 1755 1756 /* Send marker if required */ 1757 if (vha->marker_needed != 0) { 1758 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 1759 QLA_SUCCESS) 1760 return QLA_FUNCTION_FAILED; 1761 vha->marker_needed = 0; 1762 } 1763 1764 /* Acquire ring specific lock */ 1765 spin_lock_irqsave(&ha->hardware_lock, flags); 1766 1767 handle = qla2xxx_get_next_handle(req); 1768 if (handle == 0) 1769 goto queuing_error; 1770 1771 /* Compute number of required data segments */ 1772 /* Map the sg table so we have an accurate count of sg entries needed */ 1773 if (scsi_sg_count(cmd)) { 1774 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1775 scsi_sg_count(cmd), cmd->sc_data_direction); 1776 if (unlikely(!nseg)) 1777 goto queuing_error; 1778 else 1779 sp->flags |= SRB_DMA_VALID; 1780 1781 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1782 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1783 struct qla2_sgx sgx; 1784 uint32_t partial; 1785 1786 memset(&sgx, 0, sizeof(struct qla2_sgx)); 1787 sgx.tot_bytes = scsi_bufflen(cmd); 1788 sgx.cur_sg = scsi_sglist(cmd); 1789 sgx.sp = sp; 1790 1791 nseg = 0; 1792 while (qla24xx_get_one_block_sg( 1793 cmd->device->sector_size, &sgx, &partial)) 1794 nseg++; 1795 } 1796 } else 1797 nseg = 0; 1798 1799 /* number of required data segments */ 1800 tot_dsds = nseg; 1801 1802 /* Compute number of required protection segments */ 1803 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 1804 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 1805 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 1806 if (unlikely(!nseg)) 1807 goto queuing_error; 1808 else 1809 sp->flags |= SRB_CRC_PROT_DMA_VALID; 1810 1811 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1812 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1813 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 1814 } 1815 } else { 1816 nseg = 0; 1817 } 1818 1819 req_cnt = 1; 1820 /* Total Data and protection sg segment(s) */ 1821 tot_prot_dsds = nseg; 1822 tot_dsds += nseg; 1823 if (req->cnt < (req_cnt + 2)) { 1824 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 1825 RD_REG_DWORD_RELAXED(req->req_q_out); 1826 if (req->ring_index < cnt) 1827 req->cnt = cnt - req->ring_index; 1828 else 1829 req->cnt = req->length - 1830 (req->ring_index - cnt); 1831 if (req->cnt < (req_cnt + 2)) 1832 goto queuing_error; 1833 } 1834 1835 status |= QDSS_GOT_Q_SPACE; 1836 1837 /* Build header part of command packet (excluding the OPCODE). */ 1838 req->current_outstanding_cmd = handle; 1839 req->outstanding_cmds[handle] = sp; 1840 sp->handle = handle; 1841 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1842 req->cnt -= req_cnt; 1843 1844 /* Fill-in common area */ 1845 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 1846 cmd_pkt->handle = make_handle(req->id, handle); 1847 1848 clr_ptr = (uint32_t *)cmd_pkt + 2; 1849 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1850 1851 /* Set NPORT-ID and LUN number*/ 1852 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1853 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1854 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1855 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1856 1857 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1858 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1859 1860 /* Total Data and protection segment(s) */ 1861 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1862 1863 /* Build IOCB segments and adjust for data protection segments */ 1864 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 1865 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 1866 QLA_SUCCESS) 1867 goto queuing_error; 1868 1869 cmd_pkt->entry_count = (uint8_t)req_cnt; 1870 /* Specify response queue number where completion should happen */ 1871 cmd_pkt->entry_status = (uint8_t) rsp->id; 1872 cmd_pkt->timeout = cpu_to_le16(0); 1873 wmb(); 1874 1875 /* Adjust ring index. */ 1876 req->ring_index++; 1877 if (req->ring_index == req->length) { 1878 req->ring_index = 0; 1879 req->ring_ptr = req->ring; 1880 } else 1881 req->ring_ptr++; 1882 1883 /* Set chip new ring index. */ 1884 WRT_REG_DWORD(req->req_q_in, req->ring_index); 1885 1886 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1887 1888 return QLA_SUCCESS; 1889 1890 queuing_error: 1891 if (status & QDSS_GOT_Q_SPACE) { 1892 req->outstanding_cmds[handle] = NULL; 1893 req->cnt += req_cnt; 1894 } 1895 /* Cleanup will be performed by the caller (queuecommand) */ 1896 1897 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1898 return QLA_FUNCTION_FAILED; 1899 } 1900 1901 /** 1902 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP 1903 * @sp: command to send to the ISP 1904 * 1905 * Returns non-zero if a failure occurred, else zero. 1906 */ 1907 static int 1908 qla2xxx_start_scsi_mq(srb_t *sp) 1909 { 1910 int nseg; 1911 unsigned long flags; 1912 uint32_t *clr_ptr; 1913 uint32_t handle; 1914 struct cmd_type_7 *cmd_pkt; 1915 uint16_t cnt; 1916 uint16_t req_cnt; 1917 uint16_t tot_dsds; 1918 struct req_que *req = NULL; 1919 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1920 struct scsi_qla_host *vha = sp->fcport->vha; 1921 struct qla_hw_data *ha = vha->hw; 1922 struct qla_qpair *qpair = sp->qpair; 1923 1924 /* Acquire qpair specific lock */ 1925 spin_lock_irqsave(&qpair->qp_lock, flags); 1926 1927 /* Setup qpair pointers */ 1928 req = qpair->req; 1929 1930 /* So we know we haven't pci_map'ed anything yet */ 1931 tot_dsds = 0; 1932 1933 /* Send marker if required */ 1934 if (vha->marker_needed != 0) { 1935 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != 1936 QLA_SUCCESS) { 1937 spin_unlock_irqrestore(&qpair->qp_lock, flags); 1938 return QLA_FUNCTION_FAILED; 1939 } 1940 vha->marker_needed = 0; 1941 } 1942 1943 handle = qla2xxx_get_next_handle(req); 1944 if (handle == 0) 1945 goto queuing_error; 1946 1947 /* Map the sg table so we have an accurate count of sg entries needed */ 1948 if (scsi_sg_count(cmd)) { 1949 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1950 scsi_sg_count(cmd), cmd->sc_data_direction); 1951 if (unlikely(!nseg)) 1952 goto queuing_error; 1953 } else 1954 nseg = 0; 1955 1956 tot_dsds = nseg; 1957 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1958 if (req->cnt < (req_cnt + 2)) { 1959 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 1960 RD_REG_DWORD_RELAXED(req->req_q_out); 1961 if (req->ring_index < cnt) 1962 req->cnt = cnt - req->ring_index; 1963 else 1964 req->cnt = req->length - 1965 (req->ring_index - cnt); 1966 if (req->cnt < (req_cnt + 2)) 1967 goto queuing_error; 1968 } 1969 1970 /* Build command packet. */ 1971 req->current_outstanding_cmd = handle; 1972 req->outstanding_cmds[handle] = sp; 1973 sp->handle = handle; 1974 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1975 req->cnt -= req_cnt; 1976 1977 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1978 cmd_pkt->handle = make_handle(req->id, handle); 1979 1980 /* Zero out remaining portion of packet. */ 1981 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1982 clr_ptr = (uint32_t *)cmd_pkt + 2; 1983 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1984 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1985 1986 /* Set NPORT-ID and LUN number*/ 1987 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1988 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1989 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1990 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1991 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 1992 1993 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1994 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1995 1996 cmd_pkt->task = TSK_SIMPLE; 1997 1998 /* Load SCSI command packet. */ 1999 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 2000 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 2001 2002 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 2003 2004 /* Build IOCB segments */ 2005 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 2006 2007 /* Set total data segment count. */ 2008 cmd_pkt->entry_count = (uint8_t)req_cnt; 2009 wmb(); 2010 /* Adjust ring index. */ 2011 req->ring_index++; 2012 if (req->ring_index == req->length) { 2013 req->ring_index = 0; 2014 req->ring_ptr = req->ring; 2015 } else 2016 req->ring_ptr++; 2017 2018 sp->flags |= SRB_DMA_VALID; 2019 2020 /* Set chip new ring index. */ 2021 WRT_REG_DWORD(req->req_q_in, req->ring_index); 2022 2023 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2024 return QLA_SUCCESS; 2025 2026 queuing_error: 2027 if (tot_dsds) 2028 scsi_dma_unmap(cmd); 2029 2030 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2031 2032 return QLA_FUNCTION_FAILED; 2033 } 2034 2035 2036 /** 2037 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP 2038 * @sp: command to send to the ISP 2039 * 2040 * Returns non-zero if a failure occurred, else zero. 2041 */ 2042 int 2043 qla2xxx_dif_start_scsi_mq(srb_t *sp) 2044 { 2045 int nseg; 2046 unsigned long flags; 2047 uint32_t *clr_ptr; 2048 uint32_t handle; 2049 uint16_t cnt; 2050 uint16_t req_cnt = 0; 2051 uint16_t tot_dsds; 2052 uint16_t tot_prot_dsds; 2053 uint16_t fw_prot_opts = 0; 2054 struct req_que *req = NULL; 2055 struct rsp_que *rsp = NULL; 2056 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 2057 struct scsi_qla_host *vha = sp->fcport->vha; 2058 struct qla_hw_data *ha = vha->hw; 2059 struct cmd_type_crc_2 *cmd_pkt; 2060 uint32_t status = 0; 2061 struct qla_qpair *qpair = sp->qpair; 2062 2063 #define QDSS_GOT_Q_SPACE BIT_0 2064 2065 /* Check for host side state */ 2066 if (!qpair->online) { 2067 cmd->result = DID_NO_CONNECT << 16; 2068 return QLA_INTERFACE_ERROR; 2069 } 2070 2071 if (!qpair->difdix_supported && 2072 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { 2073 cmd->result = DID_NO_CONNECT << 16; 2074 return QLA_INTERFACE_ERROR; 2075 } 2076 2077 /* Only process protection or >16 cdb in this routine */ 2078 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 2079 if (cmd->cmd_len <= 16) 2080 return qla2xxx_start_scsi_mq(sp); 2081 } 2082 2083 spin_lock_irqsave(&qpair->qp_lock, flags); 2084 2085 /* Setup qpair pointers */ 2086 rsp = qpair->rsp; 2087 req = qpair->req; 2088 2089 /* So we know we haven't pci_map'ed anything yet */ 2090 tot_dsds = 0; 2091 2092 /* Send marker if required */ 2093 if (vha->marker_needed != 0) { 2094 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != 2095 QLA_SUCCESS) { 2096 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2097 return QLA_FUNCTION_FAILED; 2098 } 2099 vha->marker_needed = 0; 2100 } 2101 2102 handle = qla2xxx_get_next_handle(req); 2103 if (handle == 0) 2104 goto queuing_error; 2105 2106 /* Compute number of required data segments */ 2107 /* Map the sg table so we have an accurate count of sg entries needed */ 2108 if (scsi_sg_count(cmd)) { 2109 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 2110 scsi_sg_count(cmd), cmd->sc_data_direction); 2111 if (unlikely(!nseg)) 2112 goto queuing_error; 2113 else 2114 sp->flags |= SRB_DMA_VALID; 2115 2116 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2117 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2118 struct qla2_sgx sgx; 2119 uint32_t partial; 2120 2121 memset(&sgx, 0, sizeof(struct qla2_sgx)); 2122 sgx.tot_bytes = scsi_bufflen(cmd); 2123 sgx.cur_sg = scsi_sglist(cmd); 2124 sgx.sp = sp; 2125 2126 nseg = 0; 2127 while (qla24xx_get_one_block_sg( 2128 cmd->device->sector_size, &sgx, &partial)) 2129 nseg++; 2130 } 2131 } else 2132 nseg = 0; 2133 2134 /* number of required data segments */ 2135 tot_dsds = nseg; 2136 2137 /* Compute number of required protection segments */ 2138 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 2139 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 2140 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 2141 if (unlikely(!nseg)) 2142 goto queuing_error; 2143 else 2144 sp->flags |= SRB_CRC_PROT_DMA_VALID; 2145 2146 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2147 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2148 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 2149 } 2150 } else { 2151 nseg = 0; 2152 } 2153 2154 req_cnt = 1; 2155 /* Total Data and protection sg segment(s) */ 2156 tot_prot_dsds = nseg; 2157 tot_dsds += nseg; 2158 if (req->cnt < (req_cnt + 2)) { 2159 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 2160 RD_REG_DWORD_RELAXED(req->req_q_out); 2161 if (req->ring_index < cnt) 2162 req->cnt = cnt - req->ring_index; 2163 else 2164 req->cnt = req->length - 2165 (req->ring_index - cnt); 2166 if (req->cnt < (req_cnt + 2)) 2167 goto queuing_error; 2168 } 2169 2170 status |= QDSS_GOT_Q_SPACE; 2171 2172 /* Build header part of command packet (excluding the OPCODE). */ 2173 req->current_outstanding_cmd = handle; 2174 req->outstanding_cmds[handle] = sp; 2175 sp->handle = handle; 2176 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 2177 req->cnt -= req_cnt; 2178 2179 /* Fill-in common area */ 2180 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 2181 cmd_pkt->handle = make_handle(req->id, handle); 2182 2183 clr_ptr = (uint32_t *)cmd_pkt + 2; 2184 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 2185 2186 /* Set NPORT-ID and LUN number*/ 2187 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2188 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2189 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2190 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2191 2192 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 2193 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2194 2195 /* Total Data and protection segment(s) */ 2196 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 2197 2198 /* Build IOCB segments and adjust for data protection segments */ 2199 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 2200 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 2201 QLA_SUCCESS) 2202 goto queuing_error; 2203 2204 cmd_pkt->entry_count = (uint8_t)req_cnt; 2205 cmd_pkt->timeout = cpu_to_le16(0); 2206 wmb(); 2207 2208 /* Adjust ring index. */ 2209 req->ring_index++; 2210 if (req->ring_index == req->length) { 2211 req->ring_index = 0; 2212 req->ring_ptr = req->ring; 2213 } else 2214 req->ring_ptr++; 2215 2216 /* Set chip new ring index. */ 2217 WRT_REG_DWORD(req->req_q_in, req->ring_index); 2218 2219 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2220 if (vha->flags.process_response_queue && 2221 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2222 qla24xx_process_response_queue(vha, rsp); 2223 2224 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2225 2226 return QLA_SUCCESS; 2227 2228 queuing_error: 2229 if (status & QDSS_GOT_Q_SPACE) { 2230 req->outstanding_cmds[handle] = NULL; 2231 req->cnt += req_cnt; 2232 } 2233 /* Cleanup will be performed by the caller (queuecommand) */ 2234 2235 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2236 return QLA_FUNCTION_FAILED; 2237 } 2238 2239 /* Generic Control-SRB manipulation functions. */ 2240 2241 /* hardware_lock assumed to be held. */ 2242 2243 void * 2244 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp) 2245 { 2246 scsi_qla_host_t *vha = qpair->vha; 2247 struct qla_hw_data *ha = vha->hw; 2248 struct req_que *req = qpair->req; 2249 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 2250 uint32_t handle; 2251 request_t *pkt; 2252 uint16_t cnt, req_cnt; 2253 2254 pkt = NULL; 2255 req_cnt = 1; 2256 handle = 0; 2257 2258 if (sp && (sp->type != SRB_SCSI_CMD)) { 2259 /* Adjust entry-counts as needed. */ 2260 req_cnt = sp->iocbs; 2261 } 2262 2263 /* Check for room on request queue. */ 2264 if (req->cnt < req_cnt + 2) { 2265 if (qpair->use_shadow_reg) 2266 cnt = *req->out_ptr; 2267 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) || 2268 IS_QLA28XX(ha)) 2269 cnt = RD_REG_DWORD(®->isp25mq.req_q_out); 2270 else if (IS_P3P_TYPE(ha)) 2271 cnt = RD_REG_DWORD(®->isp82.req_q_out); 2272 else if (IS_FWI2_CAPABLE(ha)) 2273 cnt = RD_REG_DWORD(®->isp24.req_q_out); 2274 else if (IS_QLAFX00(ha)) 2275 cnt = RD_REG_DWORD(®->ispfx00.req_q_out); 2276 else 2277 cnt = qla2x00_debounce_register( 2278 ISP_REQ_Q_OUT(ha, ®->isp)); 2279 2280 if (req->ring_index < cnt) 2281 req->cnt = cnt - req->ring_index; 2282 else 2283 req->cnt = req->length - 2284 (req->ring_index - cnt); 2285 } 2286 if (req->cnt < req_cnt + 2) 2287 goto queuing_error; 2288 2289 if (sp) { 2290 handle = qla2xxx_get_next_handle(req); 2291 if (handle == 0) { 2292 ql_log(ql_log_warn, vha, 0x700b, 2293 "No room on outstanding cmd array.\n"); 2294 goto queuing_error; 2295 } 2296 2297 /* Prep command array. */ 2298 req->current_outstanding_cmd = handle; 2299 req->outstanding_cmds[handle] = sp; 2300 sp->handle = handle; 2301 } 2302 2303 /* Prep packet */ 2304 req->cnt -= req_cnt; 2305 pkt = req->ring_ptr; 2306 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2307 if (IS_QLAFX00(ha)) { 2308 WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt); 2309 WRT_REG_WORD((void __iomem *)&pkt->handle, handle); 2310 } else { 2311 pkt->entry_count = req_cnt; 2312 pkt->handle = handle; 2313 } 2314 2315 return pkt; 2316 2317 queuing_error: 2318 qpair->tgt_counters.num_alloc_iocb_failed++; 2319 return pkt; 2320 } 2321 2322 void * 2323 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp) 2324 { 2325 scsi_qla_host_t *vha = qpair->vha; 2326 2327 if (qla2x00_reset_active(vha)) 2328 return NULL; 2329 2330 return __qla2x00_alloc_iocbs(qpair, sp); 2331 } 2332 2333 void * 2334 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp) 2335 { 2336 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp); 2337 } 2338 2339 static void 2340 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2341 { 2342 struct srb_iocb *lio = &sp->u.iocb_cmd; 2343 2344 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2345 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2346 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) { 2347 logio->control_flags |= LCF_NVME_PRLI; 2348 if (sp->vha->flags.nvme_first_burst) 2349 logio->io_parameter[0] = NVME_PRLI_SP_FIRST_BURST; 2350 } 2351 2352 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2353 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2354 logio->port_id[1] = sp->fcport->d_id.b.area; 2355 logio->port_id[2] = sp->fcport->d_id.b.domain; 2356 logio->vp_index = sp->vha->vp_idx; 2357 } 2358 2359 static void 2360 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2361 { 2362 struct srb_iocb *lio = &sp->u.iocb_cmd; 2363 2364 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2365 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2366 2367 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) { 2368 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2369 } else { 2370 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2371 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) 2372 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); 2373 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) 2374 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); 2375 } 2376 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2377 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2378 logio->port_id[1] = sp->fcport->d_id.b.area; 2379 logio->port_id[2] = sp->fcport->d_id.b.domain; 2380 logio->vp_index = sp->vha->vp_idx; 2381 } 2382 2383 static void 2384 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) 2385 { 2386 struct qla_hw_data *ha = sp->vha->hw; 2387 struct srb_iocb *lio = &sp->u.iocb_cmd; 2388 uint16_t opts; 2389 2390 mbx->entry_type = MBX_IOCB_TYPE; 2391 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2392 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); 2393 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; 2394 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; 2395 if (HAS_EXTENDED_IDS(ha)) { 2396 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2397 mbx->mb10 = cpu_to_le16(opts); 2398 } else { 2399 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); 2400 } 2401 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2402 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2403 sp->fcport->d_id.b.al_pa); 2404 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2405 } 2406 2407 static void 2408 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2409 { 2410 u16 control_flags = LCF_COMMAND_LOGO; 2411 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2412 2413 if (sp->fcport->explicit_logout) { 2414 control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT; 2415 } else { 2416 control_flags |= LCF_IMPL_LOGO; 2417 2418 if (!sp->fcport->keep_nport_handle) 2419 control_flags |= LCF_FREE_NPORT; 2420 } 2421 2422 logio->control_flags = cpu_to_le16(control_flags); 2423 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2424 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2425 logio->port_id[1] = sp->fcport->d_id.b.area; 2426 logio->port_id[2] = sp->fcport->d_id.b.domain; 2427 logio->vp_index = sp->vha->vp_idx; 2428 } 2429 2430 static void 2431 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) 2432 { 2433 struct qla_hw_data *ha = sp->vha->hw; 2434 2435 mbx->entry_type = MBX_IOCB_TYPE; 2436 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2437 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); 2438 mbx->mb1 = HAS_EXTENDED_IDS(ha) ? 2439 cpu_to_le16(sp->fcport->loop_id) : 2440 cpu_to_le16(sp->fcport->loop_id << 8); 2441 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2442 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2443 sp->fcport->d_id.b.al_pa); 2444 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2445 /* Implicit: mbx->mbx10 = 0. */ 2446 } 2447 2448 static void 2449 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2450 { 2451 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2452 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); 2453 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2454 logio->vp_index = sp->vha->vp_idx; 2455 } 2456 2457 static void 2458 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) 2459 { 2460 struct qla_hw_data *ha = sp->vha->hw; 2461 2462 mbx->entry_type = MBX_IOCB_TYPE; 2463 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2464 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); 2465 if (HAS_EXTENDED_IDS(ha)) { 2466 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2467 mbx->mb10 = cpu_to_le16(BIT_0); 2468 } else { 2469 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); 2470 } 2471 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); 2472 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); 2473 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); 2474 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); 2475 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2476 } 2477 2478 static void 2479 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) 2480 { 2481 uint32_t flags; 2482 uint64_t lun; 2483 struct fc_port *fcport = sp->fcport; 2484 scsi_qla_host_t *vha = fcport->vha; 2485 struct qla_hw_data *ha = vha->hw; 2486 struct srb_iocb *iocb = &sp->u.iocb_cmd; 2487 struct req_que *req = vha->req; 2488 2489 flags = iocb->u.tmf.flags; 2490 lun = iocb->u.tmf.lun; 2491 2492 tsk->entry_type = TSK_MGMT_IOCB_TYPE; 2493 tsk->entry_count = 1; 2494 tsk->handle = make_handle(req->id, tsk->handle); 2495 tsk->nport_handle = cpu_to_le16(fcport->loop_id); 2496 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); 2497 tsk->control_flags = cpu_to_le32(flags); 2498 tsk->port_id[0] = fcport->d_id.b.al_pa; 2499 tsk->port_id[1] = fcport->d_id.b.area; 2500 tsk->port_id[2] = fcport->d_id.b.domain; 2501 tsk->vp_index = fcport->vha->vp_idx; 2502 2503 if (flags == TCF_LUN_RESET) { 2504 int_to_scsilun(lun, &tsk->lun); 2505 host_to_fcp_swap((uint8_t *)&tsk->lun, 2506 sizeof(tsk->lun)); 2507 } 2508 } 2509 2510 void qla2x00_init_timer(srb_t *sp, unsigned long tmo) 2511 { 2512 timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0); 2513 sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ; 2514 sp->free = qla2x00_sp_free; 2515 if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD) 2516 init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp); 2517 sp->start_timer = 1; 2518 } 2519 2520 static void qla2x00_els_dcmd_sp_free(srb_t *sp) 2521 { 2522 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2523 2524 kfree(sp->fcport); 2525 2526 if (elsio->u.els_logo.els_logo_pyld) 2527 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, 2528 elsio->u.els_logo.els_logo_pyld, 2529 elsio->u.els_logo.els_logo_pyld_dma); 2530 2531 del_timer(&elsio->timer); 2532 qla2x00_rel_sp(sp); 2533 } 2534 2535 static void 2536 qla2x00_els_dcmd_iocb_timeout(void *data) 2537 { 2538 srb_t *sp = data; 2539 fc_port_t *fcport = sp->fcport; 2540 struct scsi_qla_host *vha = sp->vha; 2541 struct srb_iocb *lio = &sp->u.iocb_cmd; 2542 unsigned long flags = 0; 2543 int res, h; 2544 2545 ql_dbg(ql_dbg_io, vha, 0x3069, 2546 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n", 2547 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, 2548 fcport->d_id.b.al_pa); 2549 2550 /* Abort the exchange */ 2551 res = qla24xx_async_abort_cmd(sp, false); 2552 if (res) { 2553 ql_dbg(ql_dbg_io, vha, 0x3070, 2554 "mbx abort_command failed.\n"); 2555 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); 2556 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { 2557 if (sp->qpair->req->outstanding_cmds[h] == sp) { 2558 sp->qpair->req->outstanding_cmds[h] = NULL; 2559 break; 2560 } 2561 } 2562 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); 2563 complete(&lio->u.els_logo.comp); 2564 } else { 2565 ql_dbg(ql_dbg_io, vha, 0x3071, 2566 "mbx abort_command success.\n"); 2567 } 2568 } 2569 2570 static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res) 2571 { 2572 fc_port_t *fcport = sp->fcport; 2573 struct srb_iocb *lio = &sp->u.iocb_cmd; 2574 struct scsi_qla_host *vha = sp->vha; 2575 2576 ql_dbg(ql_dbg_io, vha, 0x3072, 2577 "%s hdl=%x, portid=%02x%02x%02x done\n", 2578 sp->name, sp->handle, fcport->d_id.b.domain, 2579 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2580 2581 complete(&lio->u.els_logo.comp); 2582 } 2583 2584 int 2585 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, 2586 port_id_t remote_did) 2587 { 2588 srb_t *sp; 2589 fc_port_t *fcport = NULL; 2590 struct srb_iocb *elsio = NULL; 2591 struct qla_hw_data *ha = vha->hw; 2592 struct els_logo_payload logo_pyld; 2593 int rval = QLA_SUCCESS; 2594 2595 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); 2596 if (!fcport) { 2597 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n"); 2598 return -ENOMEM; 2599 } 2600 2601 /* Alloc SRB structure */ 2602 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2603 if (!sp) { 2604 kfree(fcport); 2605 ql_log(ql_log_info, vha, 0x70e6, 2606 "SRB allocation failed\n"); 2607 return -ENOMEM; 2608 } 2609 2610 elsio = &sp->u.iocb_cmd; 2611 fcport->loop_id = 0xFFFF; 2612 fcport->d_id.b.domain = remote_did.b.domain; 2613 fcport->d_id.b.area = remote_did.b.area; 2614 fcport->d_id.b.al_pa = remote_did.b.al_pa; 2615 2616 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n", 2617 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); 2618 2619 sp->type = SRB_ELS_DCMD; 2620 sp->name = "ELS_DCMD"; 2621 sp->fcport = fcport; 2622 elsio->timeout = qla2x00_els_dcmd_iocb_timeout; 2623 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT); 2624 init_completion(&sp->u.iocb_cmd.u.els_logo.comp); 2625 sp->done = qla2x00_els_dcmd_sp_done; 2626 sp->free = qla2x00_els_dcmd_sp_free; 2627 2628 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev, 2629 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma, 2630 GFP_KERNEL); 2631 2632 if (!elsio->u.els_logo.els_logo_pyld) { 2633 sp->free(sp); 2634 return QLA_FUNCTION_FAILED; 2635 } 2636 2637 memset(&logo_pyld, 0, sizeof(struct els_logo_payload)); 2638 2639 elsio->u.els_logo.els_cmd = els_opcode; 2640 logo_pyld.opcode = els_opcode; 2641 logo_pyld.s_id[0] = vha->d_id.b.al_pa; 2642 logo_pyld.s_id[1] = vha->d_id.b.area; 2643 logo_pyld.s_id[2] = vha->d_id.b.domain; 2644 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t)); 2645 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE); 2646 2647 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld, 2648 sizeof(struct els_logo_payload)); 2649 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:"); 2650 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a, 2651 elsio->u.els_logo.els_logo_pyld, 2652 sizeof(*elsio->u.els_logo.els_logo_pyld)); 2653 2654 rval = qla2x00_start_sp(sp); 2655 if (rval != QLA_SUCCESS) { 2656 sp->free(sp); 2657 return QLA_FUNCTION_FAILED; 2658 } 2659 2660 ql_dbg(ql_dbg_io, vha, 0x3074, 2661 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n", 2662 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain, 2663 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2664 2665 wait_for_completion(&elsio->u.els_logo.comp); 2666 2667 sp->free(sp); 2668 return rval; 2669 } 2670 2671 static void 2672 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 2673 { 2674 scsi_qla_host_t *vha = sp->vha; 2675 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2676 2677 els_iocb->entry_type = ELS_IOCB_TYPE; 2678 els_iocb->entry_count = 1; 2679 els_iocb->sys_define = 0; 2680 els_iocb->entry_status = 0; 2681 els_iocb->handle = sp->handle; 2682 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2683 els_iocb->tx_dsd_count = 1; 2684 els_iocb->vp_index = vha->vp_idx; 2685 els_iocb->sof_type = EST_SOFI3; 2686 els_iocb->rx_dsd_count = 0; 2687 els_iocb->opcode = elsio->u.els_logo.els_cmd; 2688 2689 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; 2690 els_iocb->d_id[1] = sp->fcport->d_id.b.area; 2691 els_iocb->d_id[2] = sp->fcport->d_id.b.domain; 2692 /* For SID the byte order is different than DID */ 2693 els_iocb->s_id[1] = vha->d_id.b.al_pa; 2694 els_iocb->s_id[2] = vha->d_id.b.area; 2695 els_iocb->s_id[0] = vha->d_id.b.domain; 2696 2697 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) { 2698 els_iocb->control_flags = 0; 2699 els_iocb->tx_byte_count = els_iocb->tx_len = 2700 cpu_to_le32(sizeof(struct els_plogi_payload)); 2701 put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma, 2702 &els_iocb->tx_address); 2703 els_iocb->rx_dsd_count = 1; 2704 els_iocb->rx_byte_count = els_iocb->rx_len = 2705 cpu_to_le32(sizeof(struct els_plogi_payload)); 2706 put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma, 2707 &els_iocb->rx_address); 2708 2709 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, 2710 "PLOGI ELS IOCB:\n"); 2711 ql_dump_buffer(ql_log_info, vha, 0x0109, 2712 (uint8_t *)els_iocb, 2713 sizeof(*els_iocb)); 2714 } else { 2715 els_iocb->control_flags = 1 << 13; 2716 els_iocb->tx_byte_count = 2717 cpu_to_le32(sizeof(struct els_logo_payload)); 2718 put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma, 2719 &els_iocb->tx_address); 2720 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); 2721 2722 els_iocb->rx_byte_count = 0; 2723 els_iocb->rx_address = 0; 2724 els_iocb->rx_len = 0; 2725 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076, 2726 "LOGO ELS IOCB:"); 2727 ql_dump_buffer(ql_log_info, vha, 0x010b, 2728 els_iocb, 2729 sizeof(*els_iocb)); 2730 } 2731 2732 sp->vha->qla_stats.control_requests++; 2733 } 2734 2735 static void 2736 qla2x00_els_dcmd2_iocb_timeout(void *data) 2737 { 2738 srb_t *sp = data; 2739 fc_port_t *fcport = sp->fcport; 2740 struct scsi_qla_host *vha = sp->vha; 2741 unsigned long flags = 0; 2742 int res, h; 2743 2744 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069, 2745 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n", 2746 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24); 2747 2748 /* Abort the exchange */ 2749 res = qla24xx_async_abort_cmd(sp, false); 2750 ql_dbg(ql_dbg_io, vha, 0x3070, 2751 "mbx abort_command %s\n", 2752 (res == QLA_SUCCESS) ? "successful" : "failed"); 2753 if (res) { 2754 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); 2755 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { 2756 if (sp->qpair->req->outstanding_cmds[h] == sp) { 2757 sp->qpair->req->outstanding_cmds[h] = NULL; 2758 break; 2759 } 2760 } 2761 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); 2762 sp->done(sp, QLA_FUNCTION_TIMEOUT); 2763 } 2764 } 2765 2766 void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi) 2767 { 2768 if (els_plogi->els_plogi_pyld) 2769 dma_free_coherent(&vha->hw->pdev->dev, 2770 els_plogi->tx_size, 2771 els_plogi->els_plogi_pyld, 2772 els_plogi->els_plogi_pyld_dma); 2773 2774 if (els_plogi->els_resp_pyld) 2775 dma_free_coherent(&vha->hw->pdev->dev, 2776 els_plogi->rx_size, 2777 els_plogi->els_resp_pyld, 2778 els_plogi->els_resp_pyld_dma); 2779 } 2780 2781 static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res) 2782 { 2783 fc_port_t *fcport = sp->fcport; 2784 struct srb_iocb *lio = &sp->u.iocb_cmd; 2785 struct scsi_qla_host *vha = sp->vha; 2786 struct event_arg ea; 2787 struct qla_work_evt *e; 2788 struct fc_port *conflict_fcport; 2789 port_id_t cid; /* conflict Nport id */ 2790 u32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status; 2791 u16 lid; 2792 2793 ql_dbg(ql_dbg_disc, vha, 0x3072, 2794 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n", 2795 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name); 2796 2797 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE); 2798 del_timer(&sp->u.iocb_cmd.timer); 2799 2800 if (sp->flags & SRB_WAKEUP_ON_COMP) 2801 complete(&lio->u.els_plogi.comp); 2802 else { 2803 switch (fw_status[0]) { 2804 case CS_DATA_UNDERRUN: 2805 case CS_COMPLETE: 2806 memset(&ea, 0, sizeof(ea)); 2807 ea.fcport = fcport; 2808 ea.rc = res; 2809 qla_handle_els_plogi_done(vha, &ea); 2810 break; 2811 2812 case CS_IOCB_ERROR: 2813 switch (fw_status[1]) { 2814 case LSC_SCODE_PORTID_USED: 2815 lid = fw_status[2] & 0xffff; 2816 qlt_find_sess_invalidate_other(vha, 2817 wwn_to_u64(fcport->port_name), 2818 fcport->d_id, lid, &conflict_fcport); 2819 if (conflict_fcport) { 2820 /* 2821 * Another fcport shares the same 2822 * loop_id & nport id; conflict 2823 * fcport needs to finish cleanup 2824 * before this fcport can proceed 2825 * to login. 2826 */ 2827 conflict_fcport->conflict = fcport; 2828 fcport->login_pause = 1; 2829 ql_dbg(ql_dbg_disc, vha, 0x20ed, 2830 "%s %d %8phC pid %06x inuse with lid %#x post gidpn\n", 2831 __func__, __LINE__, 2832 fcport->port_name, 2833 fcport->d_id.b24, lid); 2834 } else { 2835 ql_dbg(ql_dbg_disc, vha, 0x20ed, 2836 "%s %d %8phC pid %06x inuse with lid %#x sched del\n", 2837 __func__, __LINE__, 2838 fcport->port_name, 2839 fcport->d_id.b24, lid); 2840 qla2x00_clear_loop_id(fcport); 2841 set_bit(lid, vha->hw->loop_id_map); 2842 fcport->loop_id = lid; 2843 fcport->keep_nport_handle = 0; 2844 qlt_schedule_sess_for_deletion(fcport); 2845 } 2846 break; 2847 2848 case LSC_SCODE_NPORT_USED: 2849 cid.b.domain = (fw_status[2] >> 16) & 0xff; 2850 cid.b.area = (fw_status[2] >> 8) & 0xff; 2851 cid.b.al_pa = fw_status[2] & 0xff; 2852 cid.b.rsvd_1 = 0; 2853 2854 ql_dbg(ql_dbg_disc, vha, 0x20ec, 2855 "%s %d %8phC lid %#x in use with pid %06x post gnl\n", 2856 __func__, __LINE__, fcport->port_name, 2857 fcport->loop_id, cid.b24); 2858 set_bit(fcport->loop_id, 2859 vha->hw->loop_id_map); 2860 fcport->loop_id = FC_NO_LOOP_ID; 2861 qla24xx_post_gnl_work(vha, fcport); 2862 break; 2863 2864 case LSC_SCODE_NOXCB: 2865 vha->hw->exch_starvation++; 2866 if (vha->hw->exch_starvation > 5) { 2867 ql_log(ql_log_warn, vha, 0xd046, 2868 "Exchange starvation. Resetting RISC\n"); 2869 vha->hw->exch_starvation = 0; 2870 set_bit(ISP_ABORT_NEEDED, 2871 &vha->dpc_flags); 2872 qla2xxx_wake_dpc(vha); 2873 } 2874 /* fall through */ 2875 default: 2876 ql_dbg(ql_dbg_disc, vha, 0x20eb, 2877 "%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n", 2878 __func__, sp->fcport->port_name, 2879 fw_status[0], fw_status[1], fw_status[2]); 2880 2881 fcport->flags &= ~FCF_ASYNC_SENT; 2882 qla2x00_set_fcport_disc_state(fcport, 2883 DSC_LOGIN_FAILED); 2884 set_bit(RELOGIN_NEEDED, &vha->dpc_flags); 2885 break; 2886 } 2887 break; 2888 2889 default: 2890 ql_dbg(ql_dbg_disc, vha, 0x20eb, 2891 "%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n", 2892 __func__, sp->fcport->port_name, 2893 fw_status[0], fw_status[1], fw_status[2]); 2894 2895 sp->fcport->flags &= ~FCF_ASYNC_SENT; 2896 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_FAILED); 2897 set_bit(RELOGIN_NEEDED, &vha->dpc_flags); 2898 break; 2899 } 2900 2901 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP); 2902 if (!e) { 2903 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2904 2905 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); 2906 sp->free(sp); 2907 return; 2908 } 2909 e->u.iosb.sp = sp; 2910 qla2x00_post_work(vha, e); 2911 } 2912 } 2913 2914 int 2915 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, 2916 fc_port_t *fcport, bool wait) 2917 { 2918 srb_t *sp; 2919 struct srb_iocb *elsio = NULL; 2920 struct qla_hw_data *ha = vha->hw; 2921 int rval = QLA_SUCCESS; 2922 void *ptr, *resp_ptr; 2923 2924 /* Alloc SRB structure */ 2925 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2926 if (!sp) { 2927 ql_log(ql_log_info, vha, 0x70e6, 2928 "SRB allocation failed\n"); 2929 fcport->flags &= ~FCF_ASYNC_ACTIVE; 2930 return -ENOMEM; 2931 } 2932 2933 fcport->flags |= FCF_ASYNC_SENT; 2934 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND); 2935 elsio = &sp->u.iocb_cmd; 2936 ql_dbg(ql_dbg_io, vha, 0x3073, 2937 "Enter: PLOGI portid=%06x\n", fcport->d_id.b24); 2938 2939 sp->type = SRB_ELS_DCMD; 2940 sp->name = "ELS_DCMD"; 2941 sp->fcport = fcport; 2942 2943 elsio->timeout = qla2x00_els_dcmd2_iocb_timeout; 2944 if (wait) 2945 sp->flags = SRB_WAKEUP_ON_COMP; 2946 2947 qla2x00_init_timer(sp, ELS_DCMD_TIMEOUT + 2); 2948 2949 sp->done = qla2x00_els_dcmd2_sp_done; 2950 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE; 2951 2952 ptr = elsio->u.els_plogi.els_plogi_pyld = 2953 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size, 2954 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL); 2955 2956 if (!elsio->u.els_plogi.els_plogi_pyld) { 2957 rval = QLA_FUNCTION_FAILED; 2958 goto out; 2959 } 2960 2961 resp_ptr = elsio->u.els_plogi.els_resp_pyld = 2962 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size, 2963 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL); 2964 2965 if (!elsio->u.els_plogi.els_resp_pyld) { 2966 rval = QLA_FUNCTION_FAILED; 2967 goto out; 2968 } 2969 2970 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr); 2971 2972 memset(ptr, 0, sizeof(struct els_plogi_payload)); 2973 memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); 2974 memcpy(elsio->u.els_plogi.els_plogi_pyld->data, 2975 &ha->plogi_els_payld.data, 2976 sizeof(elsio->u.els_plogi.els_plogi_pyld->data)); 2977 2978 elsio->u.els_plogi.els_cmd = els_opcode; 2979 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; 2980 2981 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n"); 2982 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109, 2983 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 2984 sizeof(*elsio->u.els_plogi.els_plogi_pyld)); 2985 2986 init_completion(&elsio->u.els_plogi.comp); 2987 rval = qla2x00_start_sp(sp); 2988 if (rval != QLA_SUCCESS) { 2989 rval = QLA_FUNCTION_FAILED; 2990 } else { 2991 ql_dbg(ql_dbg_disc, vha, 0x3074, 2992 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n", 2993 sp->name, sp->handle, fcport->loop_id, 2994 fcport->d_id.b24, vha->d_id.b24); 2995 } 2996 2997 if (wait) { 2998 wait_for_completion(&elsio->u.els_plogi.comp); 2999 3000 if (elsio->u.els_plogi.comp_status != CS_COMPLETE) 3001 rval = QLA_FUNCTION_FAILED; 3002 } else { 3003 goto done; 3004 } 3005 3006 out: 3007 fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE); 3008 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); 3009 sp->free(sp); 3010 done: 3011 return rval; 3012 } 3013 3014 static void 3015 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 3016 { 3017 struct bsg_job *bsg_job = sp->u.bsg_job; 3018 struct fc_bsg_request *bsg_request = bsg_job->request; 3019 3020 els_iocb->entry_type = ELS_IOCB_TYPE; 3021 els_iocb->entry_count = 1; 3022 els_iocb->sys_define = 0; 3023 els_iocb->entry_status = 0; 3024 els_iocb->handle = sp->handle; 3025 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3026 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3027 els_iocb->vp_index = sp->vha->vp_idx; 3028 els_iocb->sof_type = EST_SOFI3; 3029 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3030 3031 els_iocb->opcode = 3032 sp->type == SRB_ELS_CMD_RPT ? 3033 bsg_request->rqst_data.r_els.els_code : 3034 bsg_request->rqst_data.h_els.command_code; 3035 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; 3036 els_iocb->d_id[1] = sp->fcport->d_id.b.area; 3037 els_iocb->d_id[2] = sp->fcport->d_id.b.domain; 3038 els_iocb->control_flags = 0; 3039 els_iocb->rx_byte_count = 3040 cpu_to_le32(bsg_job->reply_payload.payload_len); 3041 els_iocb->tx_byte_count = 3042 cpu_to_le32(bsg_job->request_payload.payload_len); 3043 3044 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), 3045 &els_iocb->tx_address); 3046 els_iocb->tx_len = cpu_to_le32(sg_dma_len 3047 (bsg_job->request_payload.sg_list)); 3048 3049 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), 3050 &els_iocb->rx_address); 3051 els_iocb->rx_len = cpu_to_le32(sg_dma_len 3052 (bsg_job->reply_payload.sg_list)); 3053 3054 sp->vha->qla_stats.control_requests++; 3055 } 3056 3057 static void 3058 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) 3059 { 3060 uint16_t avail_dsds; 3061 struct dsd64 *cur_dsd; 3062 struct scatterlist *sg; 3063 int index; 3064 uint16_t tot_dsds; 3065 scsi_qla_host_t *vha = sp->vha; 3066 struct qla_hw_data *ha = vha->hw; 3067 struct bsg_job *bsg_job = sp->u.bsg_job; 3068 int entry_count = 1; 3069 3070 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); 3071 ct_iocb->entry_type = CT_IOCB_TYPE; 3072 ct_iocb->entry_status = 0; 3073 ct_iocb->handle1 = sp->handle; 3074 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); 3075 ct_iocb->status = cpu_to_le16(0); 3076 ct_iocb->control_flags = cpu_to_le16(0); 3077 ct_iocb->timeout = 0; 3078 ct_iocb->cmd_dsd_count = 3079 cpu_to_le16(bsg_job->request_payload.sg_cnt); 3080 ct_iocb->total_dsd_count = 3081 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); 3082 ct_iocb->req_bytecount = 3083 cpu_to_le32(bsg_job->request_payload.payload_len); 3084 ct_iocb->rsp_bytecount = 3085 cpu_to_le32(bsg_job->reply_payload.payload_len); 3086 3087 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), 3088 &ct_iocb->req_dsd.address); 3089 ct_iocb->req_dsd.length = ct_iocb->req_bytecount; 3090 3091 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), 3092 &ct_iocb->rsp_dsd.address); 3093 ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount; 3094 3095 avail_dsds = 1; 3096 cur_dsd = &ct_iocb->rsp_dsd; 3097 index = 0; 3098 tot_dsds = bsg_job->reply_payload.sg_cnt; 3099 3100 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { 3101 cont_a64_entry_t *cont_pkt; 3102 3103 /* Allocate additional continuation packets? */ 3104 if (avail_dsds == 0) { 3105 /* 3106 * Five DSDs are available in the Cont. 3107 * Type 1 IOCB. 3108 */ 3109 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 3110 vha->hw->req_q_map[0]); 3111 cur_dsd = cont_pkt->dsd; 3112 avail_dsds = 5; 3113 entry_count++; 3114 } 3115 3116 append_dsd64(&cur_dsd, sg); 3117 avail_dsds--; 3118 } 3119 ct_iocb->entry_count = entry_count; 3120 3121 sp->vha->qla_stats.control_requests++; 3122 } 3123 3124 static void 3125 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) 3126 { 3127 uint16_t avail_dsds; 3128 struct dsd64 *cur_dsd; 3129 struct scatterlist *sg; 3130 int index; 3131 uint16_t cmd_dsds, rsp_dsds; 3132 scsi_qla_host_t *vha = sp->vha; 3133 struct qla_hw_data *ha = vha->hw; 3134 struct bsg_job *bsg_job = sp->u.bsg_job; 3135 int entry_count = 1; 3136 cont_a64_entry_t *cont_pkt = NULL; 3137 3138 ct_iocb->entry_type = CT_IOCB_TYPE; 3139 ct_iocb->entry_status = 0; 3140 ct_iocb->sys_define = 0; 3141 ct_iocb->handle = sp->handle; 3142 3143 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3144 ct_iocb->vp_index = sp->vha->vp_idx; 3145 ct_iocb->comp_status = cpu_to_le16(0); 3146 3147 cmd_dsds = bsg_job->request_payload.sg_cnt; 3148 rsp_dsds = bsg_job->reply_payload.sg_cnt; 3149 3150 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds); 3151 ct_iocb->timeout = 0; 3152 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds); 3153 ct_iocb->cmd_byte_count = 3154 cpu_to_le32(bsg_job->request_payload.payload_len); 3155 3156 avail_dsds = 2; 3157 cur_dsd = ct_iocb->dsd; 3158 index = 0; 3159 3160 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) { 3161 /* Allocate additional continuation packets? */ 3162 if (avail_dsds == 0) { 3163 /* 3164 * Five DSDs are available in the Cont. 3165 * Type 1 IOCB. 3166 */ 3167 cont_pkt = qla2x00_prep_cont_type1_iocb( 3168 vha, ha->req_q_map[0]); 3169 cur_dsd = cont_pkt->dsd; 3170 avail_dsds = 5; 3171 entry_count++; 3172 } 3173 3174 append_dsd64(&cur_dsd, sg); 3175 avail_dsds--; 3176 } 3177 3178 index = 0; 3179 3180 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) { 3181 /* Allocate additional continuation packets? */ 3182 if (avail_dsds == 0) { 3183 /* 3184 * Five DSDs are available in the Cont. 3185 * Type 1 IOCB. 3186 */ 3187 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 3188 ha->req_q_map[0]); 3189 cur_dsd = cont_pkt->dsd; 3190 avail_dsds = 5; 3191 entry_count++; 3192 } 3193 3194 append_dsd64(&cur_dsd, sg); 3195 avail_dsds--; 3196 } 3197 ct_iocb->entry_count = entry_count; 3198 } 3199 3200 /* 3201 * qla82xx_start_scsi() - Send a SCSI command to the ISP 3202 * @sp: command to send to the ISP 3203 * 3204 * Returns non-zero if a failure occurred, else zero. 3205 */ 3206 int 3207 qla82xx_start_scsi(srb_t *sp) 3208 { 3209 int nseg; 3210 unsigned long flags; 3211 struct scsi_cmnd *cmd; 3212 uint32_t *clr_ptr; 3213 uint32_t handle; 3214 uint16_t cnt; 3215 uint16_t req_cnt; 3216 uint16_t tot_dsds; 3217 struct device_reg_82xx __iomem *reg; 3218 uint32_t dbval; 3219 uint32_t *fcp_dl; 3220 uint8_t additional_cdb_len; 3221 struct ct6_dsd *ctx; 3222 struct scsi_qla_host *vha = sp->vha; 3223 struct qla_hw_data *ha = vha->hw; 3224 struct req_que *req = NULL; 3225 struct rsp_que *rsp = NULL; 3226 3227 /* Setup device pointers. */ 3228 reg = &ha->iobase->isp82; 3229 cmd = GET_CMD_SP(sp); 3230 req = vha->req; 3231 rsp = ha->rsp_q_map[0]; 3232 3233 /* So we know we haven't pci_map'ed anything yet */ 3234 tot_dsds = 0; 3235 3236 dbval = 0x04 | (ha->portnum << 5); 3237 3238 /* Send marker if required */ 3239 if (vha->marker_needed != 0) { 3240 if (qla2x00_marker(vha, ha->base_qpair, 3241 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { 3242 ql_log(ql_log_warn, vha, 0x300c, 3243 "qla2x00_marker failed for cmd=%p.\n", cmd); 3244 return QLA_FUNCTION_FAILED; 3245 } 3246 vha->marker_needed = 0; 3247 } 3248 3249 /* Acquire ring specific lock */ 3250 spin_lock_irqsave(&ha->hardware_lock, flags); 3251 3252 handle = qla2xxx_get_next_handle(req); 3253 if (handle == 0) 3254 goto queuing_error; 3255 3256 /* Map the sg table so we have an accurate count of sg entries needed */ 3257 if (scsi_sg_count(cmd)) { 3258 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 3259 scsi_sg_count(cmd), cmd->sc_data_direction); 3260 if (unlikely(!nseg)) 3261 goto queuing_error; 3262 } else 3263 nseg = 0; 3264 3265 tot_dsds = nseg; 3266 3267 if (tot_dsds > ql2xshiftctondsd) { 3268 struct cmd_type_6 *cmd_pkt; 3269 uint16_t more_dsd_lists = 0; 3270 struct dsd_dma *dsd_ptr; 3271 uint16_t i; 3272 3273 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); 3274 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { 3275 ql_dbg(ql_dbg_io, vha, 0x300d, 3276 "Num of DSD list %d is than %d for cmd=%p.\n", 3277 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, 3278 cmd); 3279 goto queuing_error; 3280 } 3281 3282 if (more_dsd_lists <= ha->gbl_dsd_avail) 3283 goto sufficient_dsds; 3284 else 3285 more_dsd_lists -= ha->gbl_dsd_avail; 3286 3287 for (i = 0; i < more_dsd_lists; i++) { 3288 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 3289 if (!dsd_ptr) { 3290 ql_log(ql_log_fatal, vha, 0x300e, 3291 "Failed to allocate memory for dsd_dma " 3292 "for cmd=%p.\n", cmd); 3293 goto queuing_error; 3294 } 3295 3296 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, 3297 GFP_ATOMIC, &dsd_ptr->dsd_list_dma); 3298 if (!dsd_ptr->dsd_addr) { 3299 kfree(dsd_ptr); 3300 ql_log(ql_log_fatal, vha, 0x300f, 3301 "Failed to allocate memory for dsd_addr " 3302 "for cmd=%p.\n", cmd); 3303 goto queuing_error; 3304 } 3305 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); 3306 ha->gbl_dsd_avail++; 3307 } 3308 3309 sufficient_dsds: 3310 req_cnt = 1; 3311 3312 if (req->cnt < (req_cnt + 2)) { 3313 cnt = (uint16_t)RD_REG_DWORD_RELAXED( 3314 ®->req_q_out[0]); 3315 if (req->ring_index < cnt) 3316 req->cnt = cnt - req->ring_index; 3317 else 3318 req->cnt = req->length - 3319 (req->ring_index - cnt); 3320 if (req->cnt < (req_cnt + 2)) 3321 goto queuing_error; 3322 } 3323 3324 ctx = sp->u.scmd.ct6_ctx = 3325 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); 3326 if (!ctx) { 3327 ql_log(ql_log_fatal, vha, 0x3010, 3328 "Failed to allocate ctx for cmd=%p.\n", cmd); 3329 goto queuing_error; 3330 } 3331 3332 memset(ctx, 0, sizeof(struct ct6_dsd)); 3333 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, 3334 GFP_ATOMIC, &ctx->fcp_cmnd_dma); 3335 if (!ctx->fcp_cmnd) { 3336 ql_log(ql_log_fatal, vha, 0x3011, 3337 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); 3338 goto queuing_error; 3339 } 3340 3341 /* Initialize the DSD list and dma handle */ 3342 INIT_LIST_HEAD(&ctx->dsd_list); 3343 ctx->dsd_use_cnt = 0; 3344 3345 if (cmd->cmd_len > 16) { 3346 additional_cdb_len = cmd->cmd_len - 16; 3347 if ((cmd->cmd_len % 4) != 0) { 3348 /* SCSI command bigger than 16 bytes must be 3349 * multiple of 4 3350 */ 3351 ql_log(ql_log_warn, vha, 0x3012, 3352 "scsi cmd len %d not multiple of 4 " 3353 "for cmd=%p.\n", cmd->cmd_len, cmd); 3354 goto queuing_error_fcp_cmnd; 3355 } 3356 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; 3357 } else { 3358 additional_cdb_len = 0; 3359 ctx->fcp_cmnd_len = 12 + 16 + 4; 3360 } 3361 3362 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; 3363 cmd_pkt->handle = make_handle(req->id, handle); 3364 3365 /* Zero out remaining portion of packet. */ 3366 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 3367 clr_ptr = (uint32_t *)cmd_pkt + 2; 3368 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3369 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3370 3371 /* Set NPORT-ID and LUN number*/ 3372 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3373 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3374 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3375 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3376 cmd_pkt->vp_index = sp->vha->vp_idx; 3377 3378 /* Build IOCB segments */ 3379 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) 3380 goto queuing_error_fcp_cmnd; 3381 3382 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3383 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 3384 3385 /* build FCP_CMND IU */ 3386 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); 3387 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; 3388 3389 if (cmd->sc_data_direction == DMA_TO_DEVICE) 3390 ctx->fcp_cmnd->additional_cdb_len |= 1; 3391 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 3392 ctx->fcp_cmnd->additional_cdb_len |= 2; 3393 3394 /* Populate the FCP_PRIO. */ 3395 if (ha->flags.fcp_prio_enabled) 3396 ctx->fcp_cmnd->task_attribute |= 3397 sp->fcport->fcp_prio << 3; 3398 3399 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 3400 3401 fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + 3402 additional_cdb_len); 3403 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); 3404 3405 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); 3406 put_unaligned_le64(ctx->fcp_cmnd_dma, 3407 &cmd_pkt->fcp_cmnd_dseg_address); 3408 3409 sp->flags |= SRB_FCP_CMND_DMA_VALID; 3410 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3411 /* Set total data segment count. */ 3412 cmd_pkt->entry_count = (uint8_t)req_cnt; 3413 /* Specify response queue number where 3414 * completion should happen 3415 */ 3416 cmd_pkt->entry_status = (uint8_t) rsp->id; 3417 } else { 3418 struct cmd_type_7 *cmd_pkt; 3419 3420 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3421 if (req->cnt < (req_cnt + 2)) { 3422 cnt = (uint16_t)RD_REG_DWORD_RELAXED( 3423 ®->req_q_out[0]); 3424 if (req->ring_index < cnt) 3425 req->cnt = cnt - req->ring_index; 3426 else 3427 req->cnt = req->length - 3428 (req->ring_index - cnt); 3429 } 3430 if (req->cnt < (req_cnt + 2)) 3431 goto queuing_error; 3432 3433 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 3434 cmd_pkt->handle = make_handle(req->id, handle); 3435 3436 /* Zero out remaining portion of packet. */ 3437 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3438 clr_ptr = (uint32_t *)cmd_pkt + 2; 3439 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3440 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3441 3442 /* Set NPORT-ID and LUN number*/ 3443 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3444 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3445 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3446 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3447 cmd_pkt->vp_index = sp->vha->vp_idx; 3448 3449 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3450 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, 3451 sizeof(cmd_pkt->lun)); 3452 3453 /* Populate the FCP_PRIO. */ 3454 if (ha->flags.fcp_prio_enabled) 3455 cmd_pkt->task |= sp->fcport->fcp_prio << 3; 3456 3457 /* Load SCSI command packet. */ 3458 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 3459 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 3460 3461 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3462 3463 /* Build IOCB segments */ 3464 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 3465 3466 /* Set total data segment count. */ 3467 cmd_pkt->entry_count = (uint8_t)req_cnt; 3468 /* Specify response queue number where 3469 * completion should happen. 3470 */ 3471 cmd_pkt->entry_status = (uint8_t) rsp->id; 3472 3473 } 3474 /* Build command packet. */ 3475 req->current_outstanding_cmd = handle; 3476 req->outstanding_cmds[handle] = sp; 3477 sp->handle = handle; 3478 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 3479 req->cnt -= req_cnt; 3480 wmb(); 3481 3482 /* Adjust ring index. */ 3483 req->ring_index++; 3484 if (req->ring_index == req->length) { 3485 req->ring_index = 0; 3486 req->ring_ptr = req->ring; 3487 } else 3488 req->ring_ptr++; 3489 3490 sp->flags |= SRB_DMA_VALID; 3491 3492 /* Set chip new ring index. */ 3493 /* write, read and verify logic */ 3494 dbval = dbval | (req->id << 8) | (req->ring_index << 16); 3495 if (ql2xdbwr) 3496 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval); 3497 else { 3498 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); 3499 wmb(); 3500 while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { 3501 WRT_REG_DWORD(ha->nxdb_wr_ptr, dbval); 3502 wmb(); 3503 } 3504 } 3505 3506 /* Manage unprocessed RIO/ZIO commands in response queue. */ 3507 if (vha->flags.process_response_queue && 3508 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 3509 qla24xx_process_response_queue(vha, rsp); 3510 3511 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3512 return QLA_SUCCESS; 3513 3514 queuing_error_fcp_cmnd: 3515 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); 3516 queuing_error: 3517 if (tot_dsds) 3518 scsi_dma_unmap(cmd); 3519 3520 if (sp->u.scmd.crc_ctx) { 3521 mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool); 3522 sp->u.scmd.crc_ctx = NULL; 3523 } 3524 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3525 3526 return QLA_FUNCTION_FAILED; 3527 } 3528 3529 static void 3530 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) 3531 { 3532 struct srb_iocb *aio = &sp->u.iocb_cmd; 3533 scsi_qla_host_t *vha = sp->vha; 3534 struct req_que *req = sp->qpair->req; 3535 3536 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); 3537 abt_iocb->entry_type = ABORT_IOCB_TYPE; 3538 abt_iocb->entry_count = 1; 3539 abt_iocb->handle = cpu_to_le32(make_handle(req->id, sp->handle)); 3540 if (sp->fcport) { 3541 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3542 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 3543 abt_iocb->port_id[1] = sp->fcport->d_id.b.area; 3544 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; 3545 } 3546 abt_iocb->handle_to_abort = 3547 cpu_to_le32(make_handle(aio->u.abt.req_que_no, 3548 aio->u.abt.cmd_hndl)); 3549 abt_iocb->vp_index = vha->vp_idx; 3550 abt_iocb->req_que_no = cpu_to_le16(aio->u.abt.req_que_no); 3551 /* Send the command to the firmware */ 3552 wmb(); 3553 } 3554 3555 static void 3556 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx) 3557 { 3558 int i, sz; 3559 3560 mbx->entry_type = MBX_IOCB_TYPE; 3561 mbx->handle = sp->handle; 3562 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb)); 3563 3564 for (i = 0; i < sz; i++) 3565 mbx->mb[i] = cpu_to_le16(sp->u.iocb_cmd.u.mbx.out_mb[i]); 3566 } 3567 3568 static void 3569 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt) 3570 { 3571 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt; 3572 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg); 3573 ct_pkt->handle = sp->handle; 3574 } 3575 3576 static void qla2x00_send_notify_ack_iocb(srb_t *sp, 3577 struct nack_to_isp *nack) 3578 { 3579 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy; 3580 3581 nack->entry_type = NOTIFY_ACK_TYPE; 3582 nack->entry_count = 1; 3583 nack->ox_id = ntfy->ox_id; 3584 3585 nack->u.isp24.handle = sp->handle; 3586 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; 3587 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { 3588 nack->u.isp24.flags = ntfy->u.isp24.flags & 3589 cpu_to_le32(NOTIFY24XX_FLAGS_PUREX_IOCB); 3590 } 3591 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; 3592 nack->u.isp24.status = ntfy->u.isp24.status; 3593 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; 3594 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; 3595 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; 3596 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; 3597 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; 3598 nack->u.isp24.srr_flags = 0; 3599 nack->u.isp24.srr_reject_code = 0; 3600 nack->u.isp24.srr_reject_code_expl = 0; 3601 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; 3602 } 3603 3604 /* 3605 * Build NVME LS request 3606 */ 3607 static int 3608 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt) 3609 { 3610 struct srb_iocb *nvme; 3611 int rval = QLA_SUCCESS; 3612 3613 nvme = &sp->u.iocb_cmd; 3614 cmd_pkt->entry_type = PT_LS4_REQUEST; 3615 cmd_pkt->entry_count = 1; 3616 cmd_pkt->control_flags = CF_LS4_ORIGINATOR << CF_LS4_SHIFT; 3617 3618 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec); 3619 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3620 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 3621 3622 cmd_pkt->tx_dseg_count = 1; 3623 cmd_pkt->tx_byte_count = nvme->u.nvme.cmd_len; 3624 cmd_pkt->dsd[0].length = nvme->u.nvme.cmd_len; 3625 put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address); 3626 3627 cmd_pkt->rx_dseg_count = 1; 3628 cmd_pkt->rx_byte_count = nvme->u.nvme.rsp_len; 3629 cmd_pkt->dsd[1].length = nvme->u.nvme.rsp_len; 3630 put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address); 3631 3632 return rval; 3633 } 3634 3635 static void 3636 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce) 3637 { 3638 int map, pos; 3639 3640 vce->entry_type = VP_CTRL_IOCB_TYPE; 3641 vce->handle = sp->handle; 3642 vce->entry_count = 1; 3643 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd); 3644 vce->vp_count = cpu_to_le16(1); 3645 3646 /* 3647 * index map in firmware starts with 1; decrement index 3648 * this is ok as we never use index 0 3649 */ 3650 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8; 3651 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7; 3652 vce->vp_idx_map[map] |= 1 << pos; 3653 } 3654 3655 static void 3656 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio) 3657 { 3658 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 3659 logio->control_flags = 3660 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO); 3661 3662 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3663 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 3664 logio->port_id[1] = sp->fcport->d_id.b.area; 3665 logio->port_id[2] = sp->fcport->d_id.b.domain; 3666 logio->vp_index = sp->fcport->vha->vp_idx; 3667 } 3668 3669 int 3670 qla2x00_start_sp(srb_t *sp) 3671 { 3672 int rval = QLA_SUCCESS; 3673 scsi_qla_host_t *vha = sp->vha; 3674 struct qla_hw_data *ha = vha->hw; 3675 struct qla_qpair *qp = sp->qpair; 3676 void *pkt; 3677 unsigned long flags; 3678 3679 spin_lock_irqsave(qp->qp_lock_ptr, flags); 3680 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp); 3681 if (!pkt) { 3682 rval = EAGAIN; 3683 ql_log(ql_log_warn, vha, 0x700c, 3684 "qla2x00_alloc_iocbs failed.\n"); 3685 goto done; 3686 } 3687 3688 switch (sp->type) { 3689 case SRB_LOGIN_CMD: 3690 IS_FWI2_CAPABLE(ha) ? 3691 qla24xx_login_iocb(sp, pkt) : 3692 qla2x00_login_iocb(sp, pkt); 3693 break; 3694 case SRB_PRLI_CMD: 3695 qla24xx_prli_iocb(sp, pkt); 3696 break; 3697 case SRB_LOGOUT_CMD: 3698 IS_FWI2_CAPABLE(ha) ? 3699 qla24xx_logout_iocb(sp, pkt) : 3700 qla2x00_logout_iocb(sp, pkt); 3701 break; 3702 case SRB_ELS_CMD_RPT: 3703 case SRB_ELS_CMD_HST: 3704 qla24xx_els_iocb(sp, pkt); 3705 break; 3706 case SRB_CT_CMD: 3707 IS_FWI2_CAPABLE(ha) ? 3708 qla24xx_ct_iocb(sp, pkt) : 3709 qla2x00_ct_iocb(sp, pkt); 3710 break; 3711 case SRB_ADISC_CMD: 3712 IS_FWI2_CAPABLE(ha) ? 3713 qla24xx_adisc_iocb(sp, pkt) : 3714 qla2x00_adisc_iocb(sp, pkt); 3715 break; 3716 case SRB_TM_CMD: 3717 IS_QLAFX00(ha) ? 3718 qlafx00_tm_iocb(sp, pkt) : 3719 qla24xx_tm_iocb(sp, pkt); 3720 break; 3721 case SRB_FXIOCB_DCMD: 3722 case SRB_FXIOCB_BCMD: 3723 qlafx00_fxdisc_iocb(sp, pkt); 3724 break; 3725 case SRB_NVME_LS: 3726 qla_nvme_ls(sp, pkt); 3727 break; 3728 case SRB_ABT_CMD: 3729 IS_QLAFX00(ha) ? 3730 qlafx00_abort_iocb(sp, pkt) : 3731 qla24xx_abort_iocb(sp, pkt); 3732 break; 3733 case SRB_ELS_DCMD: 3734 qla24xx_els_logo_iocb(sp, pkt); 3735 break; 3736 case SRB_CT_PTHRU_CMD: 3737 qla2x00_ctpthru_cmd_iocb(sp, pkt); 3738 break; 3739 case SRB_MB_IOCB: 3740 qla2x00_mb_iocb(sp, pkt); 3741 break; 3742 case SRB_NACK_PLOGI: 3743 case SRB_NACK_PRLI: 3744 case SRB_NACK_LOGO: 3745 qla2x00_send_notify_ack_iocb(sp, pkt); 3746 break; 3747 case SRB_CTRL_VP: 3748 qla25xx_ctrlvp_iocb(sp, pkt); 3749 break; 3750 case SRB_PRLO_CMD: 3751 qla24xx_prlo_iocb(sp, pkt); 3752 break; 3753 default: 3754 break; 3755 } 3756 3757 if (sp->start_timer) 3758 add_timer(&sp->u.iocb_cmd.timer); 3759 3760 wmb(); 3761 qla2x00_start_iocbs(vha, qp->req); 3762 done: 3763 spin_unlock_irqrestore(qp->qp_lock_ptr, flags); 3764 return rval; 3765 } 3766 3767 static void 3768 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, 3769 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) 3770 { 3771 uint16_t avail_dsds; 3772 struct dsd64 *cur_dsd; 3773 uint32_t req_data_len = 0; 3774 uint32_t rsp_data_len = 0; 3775 struct scatterlist *sg; 3776 int index; 3777 int entry_count = 1; 3778 struct bsg_job *bsg_job = sp->u.bsg_job; 3779 3780 /*Update entry type to indicate bidir command */ 3781 put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type); 3782 3783 /* Set the transfer direction, in this set both flags 3784 * Also set the BD_WRAP_BACK flag, firmware will take care 3785 * assigning DID=SID for outgoing pkts. 3786 */ 3787 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3788 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3789 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | 3790 BD_WRAP_BACK); 3791 3792 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; 3793 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); 3794 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); 3795 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); 3796 3797 vha->bidi_stats.transfer_bytes += req_data_len; 3798 vha->bidi_stats.io_count++; 3799 3800 vha->qla_stats.output_bytes += req_data_len; 3801 vha->qla_stats.output_requests++; 3802 3803 /* Only one dsd is available for bidirectional IOCB, remaining dsds 3804 * are bundled in continuation iocb 3805 */ 3806 avail_dsds = 1; 3807 cur_dsd = &cmd_pkt->fcp_dsd; 3808 3809 index = 0; 3810 3811 for_each_sg(bsg_job->request_payload.sg_list, sg, 3812 bsg_job->request_payload.sg_cnt, index) { 3813 cont_a64_entry_t *cont_pkt; 3814 3815 /* Allocate additional continuation packets */ 3816 if (avail_dsds == 0) { 3817 /* Continuation type 1 IOCB can accomodate 3818 * 5 DSDS 3819 */ 3820 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3821 cur_dsd = cont_pkt->dsd; 3822 avail_dsds = 5; 3823 entry_count++; 3824 } 3825 append_dsd64(&cur_dsd, sg); 3826 avail_dsds--; 3827 } 3828 /* For read request DSD will always goes to continuation IOCB 3829 * and follow the write DSD. If there is room on the current IOCB 3830 * then it is added to that IOCB else new continuation IOCB is 3831 * allocated. 3832 */ 3833 for_each_sg(bsg_job->reply_payload.sg_list, sg, 3834 bsg_job->reply_payload.sg_cnt, index) { 3835 cont_a64_entry_t *cont_pkt; 3836 3837 /* Allocate additional continuation packets */ 3838 if (avail_dsds == 0) { 3839 /* Continuation type 1 IOCB can accomodate 3840 * 5 DSDS 3841 */ 3842 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 3843 cur_dsd = cont_pkt->dsd; 3844 avail_dsds = 5; 3845 entry_count++; 3846 } 3847 append_dsd64(&cur_dsd, sg); 3848 avail_dsds--; 3849 } 3850 /* This value should be same as number of IOCB required for this cmd */ 3851 cmd_pkt->entry_count = entry_count; 3852 } 3853 3854 int 3855 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) 3856 { 3857 3858 struct qla_hw_data *ha = vha->hw; 3859 unsigned long flags; 3860 uint32_t handle; 3861 uint16_t req_cnt; 3862 uint16_t cnt; 3863 uint32_t *clr_ptr; 3864 struct cmd_bidir *cmd_pkt = NULL; 3865 struct rsp_que *rsp; 3866 struct req_que *req; 3867 int rval = EXT_STATUS_OK; 3868 3869 rval = QLA_SUCCESS; 3870 3871 rsp = ha->rsp_q_map[0]; 3872 req = vha->req; 3873 3874 /* Send marker if required */ 3875 if (vha->marker_needed != 0) { 3876 if (qla2x00_marker(vha, ha->base_qpair, 3877 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) 3878 return EXT_STATUS_MAILBOX; 3879 vha->marker_needed = 0; 3880 } 3881 3882 /* Acquire ring specific lock */ 3883 spin_lock_irqsave(&ha->hardware_lock, flags); 3884 3885 handle = qla2xxx_get_next_handle(req); 3886 if (handle == 0) { 3887 rval = EXT_STATUS_BUSY; 3888 goto queuing_error; 3889 } 3890 3891 /* Calculate number of IOCB required */ 3892 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3893 3894 /* Check for room on request queue. */ 3895 if (req->cnt < req_cnt + 2) { 3896 cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : 3897 RD_REG_DWORD_RELAXED(req->req_q_out); 3898 if (req->ring_index < cnt) 3899 req->cnt = cnt - req->ring_index; 3900 else 3901 req->cnt = req->length - 3902 (req->ring_index - cnt); 3903 } 3904 if (req->cnt < req_cnt + 2) { 3905 rval = EXT_STATUS_BUSY; 3906 goto queuing_error; 3907 } 3908 3909 cmd_pkt = (struct cmd_bidir *)req->ring_ptr; 3910 cmd_pkt->handle = make_handle(req->id, handle); 3911 3912 /* Zero out remaining portion of packet. */ 3913 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3914 clr_ptr = (uint32_t *)cmd_pkt + 2; 3915 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3916 3917 /* Set NPORT-ID (of vha)*/ 3918 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); 3919 cmd_pkt->port_id[0] = vha->d_id.b.al_pa; 3920 cmd_pkt->port_id[1] = vha->d_id.b.area; 3921 cmd_pkt->port_id[2] = vha->d_id.b.domain; 3922 3923 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); 3924 cmd_pkt->entry_status = (uint8_t) rsp->id; 3925 /* Build command packet. */ 3926 req->current_outstanding_cmd = handle; 3927 req->outstanding_cmds[handle] = sp; 3928 sp->handle = handle; 3929 req->cnt -= req_cnt; 3930 3931 /* Send the command to the firmware */ 3932 wmb(); 3933 qla2x00_start_iocbs(vha, req); 3934 queuing_error: 3935 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3936 return rval; 3937 } 3938