1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * QLogic Fibre Channel HBA Driver 4 * Copyright (c) 2003-2014 QLogic Corporation 5 */ 6#include "qla_def.h" 7#include "qla_target.h" 8 9#include <linux/blkdev.h> 10#include <linux/delay.h> 11 12#include <scsi/scsi_tcq.h> 13 14static int qla_start_scsi_type6(srb_t *sp); 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 */ 21static inline uint16_t 22qla2x00_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 descriptors needed 48 * 49 * Returns the number of IOCB entries needed to store @dsds. 50 */ 51uint16_t 52qla2x00_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 descriptors needed 70 * 71 * Returns the number of IOCB entries needed to store @dsds. 72 */ 73uint16_t 74qla2x00_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 */ 93static inline cont_entry_t * 94qla2x00_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 */ 122cont_a64_entry_t * 123qla2x00_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 145inline int 146qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) 147{ 148 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 149 150 /* We always use DIFF Bundling for best performance */ 151 *fw_prot_opts = 0; 152 153 /* Translate SCSI opcode to a protection opcode */ 154 switch (scsi_get_prot_op(cmd)) { 155 case SCSI_PROT_READ_STRIP: 156 *fw_prot_opts |= PO_MODE_DIF_REMOVE; 157 break; 158 case SCSI_PROT_WRITE_INSERT: 159 *fw_prot_opts |= PO_MODE_DIF_INSERT; 160 break; 161 case SCSI_PROT_READ_INSERT: 162 *fw_prot_opts |= PO_MODE_DIF_INSERT; 163 break; 164 case SCSI_PROT_WRITE_STRIP: 165 *fw_prot_opts |= PO_MODE_DIF_REMOVE; 166 break; 167 case SCSI_PROT_READ_PASS: 168 case SCSI_PROT_WRITE_PASS: 169 if (cmd->prot_flags & SCSI_PROT_IP_CHECKSUM) 170 *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM; 171 else 172 *fw_prot_opts |= PO_MODE_DIF_PASS; 173 break; 174 default: /* Normal Request */ 175 *fw_prot_opts |= PO_MODE_DIF_PASS; 176 break; 177 } 178 179 if (!(cmd->prot_flags & SCSI_PROT_GUARD_CHECK)) 180 *fw_prot_opts |= PO_DISABLE_GUARD_CHECK; 181 182 return scsi_prot_sg_count(cmd); 183} 184 185/* 186 * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit 187 * capable IOCB types. 188 * 189 * @sp: SRB command to process 190 * @cmd_pkt: Command type 2 IOCB 191 * @tot_dsds: Total number of segments to transfer 192 */ 193void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, 194 uint16_t tot_dsds) 195{ 196 uint16_t avail_dsds; 197 struct dsd32 *cur_dsd; 198 scsi_qla_host_t *vha; 199 struct scsi_cmnd *cmd; 200 struct scatterlist *sg; 201 int i; 202 203 cmd = GET_CMD_SP(sp); 204 205 /* Update entry type to indicate Command Type 2 IOCB */ 206 put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_type); 207 208 /* No data transfer */ 209 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 210 cmd_pkt->byte_count = cpu_to_le32(0); 211 return; 212 } 213 214 vha = sp->vha; 215 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); 216 217 /* Three DSDs are available in the Command Type 2 IOCB */ 218 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32); 219 cur_dsd = cmd_pkt->dsd32; 220 221 /* Load data segments */ 222 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 223 cont_entry_t *cont_pkt; 224 225 /* Allocate additional continuation packets? */ 226 if (avail_dsds == 0) { 227 /* 228 * Seven DSDs are available in the Continuation 229 * Type 0 IOCB. 230 */ 231 cont_pkt = qla2x00_prep_cont_type0_iocb(vha); 232 cur_dsd = cont_pkt->dsd; 233 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 234 } 235 236 append_dsd32(&cur_dsd, sg); 237 avail_dsds--; 238 } 239} 240 241/** 242 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit 243 * capable IOCB types. 244 * 245 * @sp: SRB command to process 246 * @cmd_pkt: Command type 3 IOCB 247 * @tot_dsds: Total number of segments to transfer 248 */ 249void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, 250 uint16_t tot_dsds) 251{ 252 uint16_t avail_dsds; 253 struct dsd64 *cur_dsd; 254 scsi_qla_host_t *vha; 255 struct scsi_cmnd *cmd; 256 struct scatterlist *sg; 257 int i; 258 259 cmd = GET_CMD_SP(sp); 260 261 /* Update entry type to indicate Command Type 3 IOCB */ 262 put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_type); 263 264 /* No data transfer */ 265 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 266 cmd_pkt->byte_count = cpu_to_le32(0); 267 return; 268 } 269 270 vha = sp->vha; 271 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); 272 273 /* Two DSDs are available in the Command Type 3 IOCB */ 274 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64); 275 cur_dsd = cmd_pkt->dsd64; 276 277 /* Load data segments */ 278 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 279 cont_a64_entry_t *cont_pkt; 280 281 /* Allocate additional continuation packets? */ 282 if (avail_dsds == 0) { 283 /* 284 * Five DSDs are available in the Continuation 285 * Type 1 IOCB. 286 */ 287 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 288 cur_dsd = cont_pkt->dsd; 289 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 290 } 291 292 append_dsd64(&cur_dsd, sg); 293 avail_dsds--; 294 } 295} 296 297/* 298 * Find the first handle that is not in use, starting from 299 * req->current_outstanding_cmd + 1. The caller must hold the lock that is 300 * associated with @req. 301 */ 302uint32_t qla2xxx_get_next_handle(struct req_que *req) 303{ 304 uint32_t index, handle = req->current_outstanding_cmd; 305 306 for (index = 1; index < req->num_outstanding_cmds; index++) { 307 handle++; 308 if (handle == req->num_outstanding_cmds) 309 handle = 1; 310 if (!req->outstanding_cmds[handle]) 311 return handle; 312 } 313 314 return 0; 315} 316 317/** 318 * qla2x00_start_scsi() - Send a SCSI command to the ISP 319 * @sp: command to send to the ISP 320 * 321 * Returns non-zero if a failure occurred, else zero. 322 */ 323int 324qla2x00_start_scsi(srb_t *sp) 325{ 326 int nseg; 327 unsigned long flags; 328 scsi_qla_host_t *vha; 329 struct scsi_cmnd *cmd; 330 uint32_t *clr_ptr; 331 uint32_t handle; 332 cmd_entry_t *cmd_pkt; 333 uint16_t cnt; 334 uint16_t req_cnt; 335 uint16_t tot_dsds; 336 struct device_reg_2xxx __iomem *reg; 337 struct qla_hw_data *ha; 338 struct req_que *req; 339 struct rsp_que *rsp; 340 341 /* Setup device pointers. */ 342 vha = sp->vha; 343 ha = vha->hw; 344 reg = &ha->iobase->isp; 345 cmd = GET_CMD_SP(sp); 346 req = ha->req_q_map[0]; 347 rsp = ha->rsp_q_map[0]; 348 /* So we know we haven't pci_map'ed anything yet */ 349 tot_dsds = 0; 350 351 /* Send marker if required */ 352 if (vha->marker_needed != 0) { 353 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 354 QLA_SUCCESS) { 355 return (QLA_FUNCTION_FAILED); 356 } 357 vha->marker_needed = 0; 358 } 359 360 /* Acquire ring specific lock */ 361 spin_lock_irqsave(&ha->hardware_lock, flags); 362 363 handle = qla2xxx_get_next_handle(req); 364 if (handle == 0) 365 goto queuing_error; 366 367 /* Map the sg table so we have an accurate count of sg entries needed */ 368 if (scsi_sg_count(cmd)) { 369 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 370 scsi_sg_count(cmd), cmd->sc_data_direction); 371 if (unlikely(!nseg)) 372 goto queuing_error; 373 } else 374 nseg = 0; 375 376 tot_dsds = nseg; 377 378 /* Calculate the number of request entries needed. */ 379 req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); 380 if (req->cnt < (req_cnt + 2)) { 381 cnt = rd_reg_word_relaxed(ISP_REQ_Q_OUT(ha, reg)); 382 if (req->ring_index < cnt) 383 req->cnt = cnt - req->ring_index; 384 else 385 req->cnt = req->length - 386 (req->ring_index - cnt); 387 /* If still no head room then bail out */ 388 if (req->cnt < (req_cnt + 2)) 389 goto queuing_error; 390 } 391 392 /* Build command packet */ 393 req->current_outstanding_cmd = handle; 394 req->outstanding_cmds[handle] = sp; 395 sp->handle = handle; 396 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 397 req->cnt -= req_cnt; 398 399 cmd_pkt = (cmd_entry_t *)req->ring_ptr; 400 cmd_pkt->handle = handle; 401 /* Zero out remaining portion of packet. */ 402 clr_ptr = (uint32_t *)cmd_pkt + 2; 403 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 404 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 405 406 /* Set target ID and LUN number*/ 407 SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); 408 cmd_pkt->lun = cpu_to_le16(cmd->device->lun); 409 cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG); 410 411 /* Load SCSI command packet. */ 412 memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); 413 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 414 415 /* Build IOCB segments */ 416 ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); 417 418 /* Set total data segment count. */ 419 cmd_pkt->entry_count = (uint8_t)req_cnt; 420 wmb(); 421 422 /* Adjust ring index. */ 423 req->ring_index++; 424 if (req->ring_index == req->length) { 425 req->ring_index = 0; 426 req->ring_ptr = req->ring; 427 } else 428 req->ring_ptr++; 429 430 sp->flags |= SRB_DMA_VALID; 431 432 /* Set chip new ring index. */ 433 wrt_reg_word(ISP_REQ_Q_IN(ha, reg), req->ring_index); 434 rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ 435 436 /* Manage unprocessed RIO/ZIO commands in response queue. */ 437 if (vha->flags.process_response_queue && 438 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 439 qla2x00_process_response_queue(rsp); 440 441 spin_unlock_irqrestore(&ha->hardware_lock, flags); 442 return (QLA_SUCCESS); 443 444queuing_error: 445 if (tot_dsds) 446 scsi_dma_unmap(cmd); 447 448 spin_unlock_irqrestore(&ha->hardware_lock, flags); 449 450 return (QLA_FUNCTION_FAILED); 451} 452 453/** 454 * qla2x00_start_iocbs() - Execute the IOCB command 455 * @vha: HA context 456 * @req: request queue 457 */ 458void 459qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) 460{ 461 struct qla_hw_data *ha = vha->hw; 462 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 463 464 if (IS_P3P_TYPE(ha)) { 465 qla82xx_start_iocbs(vha); 466 } else { 467 /* Adjust ring index. */ 468 req->ring_index++; 469 if (req->ring_index == req->length) { 470 req->ring_index = 0; 471 req->ring_ptr = req->ring; 472 } else 473 req->ring_ptr++; 474 475 /* Set chip new ring index. */ 476 if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) { 477 wrt_reg_dword(req->req_q_in, req->ring_index); 478 } else if (IS_QLA83XX(ha)) { 479 wrt_reg_dword(req->req_q_in, req->ring_index); 480 rd_reg_dword_relaxed(&ha->iobase->isp24.hccr); 481 } else if (IS_QLAFX00(ha)) { 482 wrt_reg_dword(®->ispfx00.req_q_in, req->ring_index); 483 rd_reg_dword_relaxed(®->ispfx00.req_q_in); 484 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); 485 } else if (IS_FWI2_CAPABLE(ha)) { 486 wrt_reg_dword(®->isp24.req_q_in, req->ring_index); 487 rd_reg_dword_relaxed(®->isp24.req_q_in); 488 } else { 489 wrt_reg_word(ISP_REQ_Q_IN(ha, ®->isp), 490 req->ring_index); 491 rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, ®->isp)); 492 } 493 } 494} 495 496/** 497 * __qla2x00_marker() - Send a marker IOCB to the firmware. 498 * @vha: HA context 499 * @qpair: queue pair pointer 500 * @loop_id: loop ID 501 * @lun: LUN 502 * @type: marker modifier 503 * 504 * Can be called from both normal and interrupt context. 505 * 506 * Returns non-zero if a failure occurred, else zero. 507 */ 508static int 509__qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair, 510 uint16_t loop_id, uint64_t lun, uint8_t type) 511{ 512 mrk_entry_t *mrk; 513 struct mrk_entry_24xx *mrk24 = NULL; 514 struct req_que *req = qpair->req; 515 struct qla_hw_data *ha = vha->hw; 516 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); 517 518 mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, NULL); 519 if (mrk == NULL) { 520 ql_log(ql_log_warn, base_vha, 0x3026, 521 "Failed to allocate Marker IOCB.\n"); 522 523 return (QLA_FUNCTION_FAILED); 524 } 525 526 mrk24 = (struct mrk_entry_24xx *)mrk; 527 528 mrk->entry_type = MARKER_TYPE; 529 mrk->modifier = type; 530 if (type != MK_SYNC_ALL) { 531 if (IS_FWI2_CAPABLE(ha)) { 532 mrk24->nport_handle = cpu_to_le16(loop_id); 533 int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun); 534 host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); 535 mrk24->vp_index = vha->vp_idx; 536 } else { 537 SET_TARGET_ID(ha, mrk->target, loop_id); 538 mrk->lun = cpu_to_le16((uint16_t)lun); 539 } 540 } 541 542 if (IS_FWI2_CAPABLE(ha)) 543 mrk24->handle = QLA_SKIP_HANDLE; 544 545 wmb(); 546 547 qla2x00_start_iocbs(vha, req); 548 549 return (QLA_SUCCESS); 550} 551 552int 553qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair, 554 uint16_t loop_id, uint64_t lun, uint8_t type) 555{ 556 int ret; 557 unsigned long flags = 0; 558 559 spin_lock_irqsave(qpair->qp_lock_ptr, flags); 560 ret = __qla2x00_marker(vha, qpair, loop_id, lun, type); 561 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags); 562 563 return (ret); 564} 565 566/* 567 * qla2x00_issue_marker 568 * 569 * Issue marker 570 * Caller CAN have hardware lock held as specified by ha_locked parameter. 571 * Might release it, then reaquire. 572 */ 573int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) 574{ 575 if (ha_locked) { 576 if (__qla2x00_marker(vha, vha->hw->base_qpair, 0, 0, 577 MK_SYNC_ALL) != QLA_SUCCESS) 578 return QLA_FUNCTION_FAILED; 579 } else { 580 if (qla2x00_marker(vha, vha->hw->base_qpair, 0, 0, 581 MK_SYNC_ALL) != QLA_SUCCESS) 582 return QLA_FUNCTION_FAILED; 583 } 584 vha->marker_needed = 0; 585 586 return QLA_SUCCESS; 587} 588 589static inline int 590qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, 591 uint16_t tot_dsds) 592{ 593 struct dsd64 *cur_dsd = NULL, *next_dsd; 594 struct scsi_cmnd *cmd; 595 struct scatterlist *cur_seg; 596 uint8_t avail_dsds; 597 uint8_t first_iocb = 1; 598 uint32_t dsd_list_len; 599 struct dsd_dma *dsd_ptr; 600 struct ct6_dsd *ctx; 601 struct qla_qpair *qpair = sp->qpair; 602 603 cmd = GET_CMD_SP(sp); 604 605 /* Update entry type to indicate Command Type 3 IOCB */ 606 put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type); 607 608 /* No data transfer */ 609 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE || 610 tot_dsds == 0) { 611 cmd_pkt->byte_count = cpu_to_le32(0); 612 return 0; 613 } 614 615 /* Set transfer direction */ 616 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 617 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); 618 qpair->counters.output_bytes += scsi_bufflen(cmd); 619 qpair->counters.output_requests++; 620 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 621 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); 622 qpair->counters.input_bytes += scsi_bufflen(cmd); 623 qpair->counters.input_requests++; 624 } 625 626 cur_seg = scsi_sglist(cmd); 627 ctx = &sp->u.scmd.ct6_ctx; 628 629 while (tot_dsds) { 630 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? 631 QLA_DSDS_PER_IOCB : tot_dsds; 632 tot_dsds -= avail_dsds; 633 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; 634 635 dsd_ptr = list_first_entry(&qpair->dsd_list, struct dsd_dma, list); 636 next_dsd = dsd_ptr->dsd_addr; 637 list_del(&dsd_ptr->list); 638 qpair->dsd_avail--; 639 list_add_tail(&dsd_ptr->list, &ctx->dsd_list); 640 ctx->dsd_use_cnt++; 641 qpair->dsd_inuse++; 642 643 if (first_iocb) { 644 first_iocb = 0; 645 put_unaligned_le64(dsd_ptr->dsd_list_dma, 646 &cmd_pkt->fcp_dsd.address); 647 cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len); 648 } else { 649 put_unaligned_le64(dsd_ptr->dsd_list_dma, 650 &cur_dsd->address); 651 cur_dsd->length = cpu_to_le32(dsd_list_len); 652 cur_dsd++; 653 } 654 cur_dsd = next_dsd; 655 while (avail_dsds) { 656 append_dsd64(&cur_dsd, cur_seg); 657 cur_seg = sg_next(cur_seg); 658 avail_dsds--; 659 } 660 } 661 662 /* Null termination */ 663 cur_dsd->address = 0; 664 cur_dsd->length = 0; 665 cur_dsd++; 666 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); 667 return 0; 668} 669 670/* 671 * qla24xx_calc_dsd_lists() - Determine number of DSD list required 672 * for Command Type 6. 673 * 674 * @dsds: number of data segment descriptors needed 675 * 676 * Returns the number of dsd list needed to store @dsds. 677 */ 678static inline uint16_t 679qla24xx_calc_dsd_lists(uint16_t dsds) 680{ 681 uint16_t dsd_lists = 0; 682 683 dsd_lists = (dsds/QLA_DSDS_PER_IOCB); 684 if (dsds % QLA_DSDS_PER_IOCB) 685 dsd_lists++; 686 return dsd_lists; 687} 688 689 690/** 691 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 692 * IOCB types. 693 * 694 * @sp: SRB command to process 695 * @cmd_pkt: Command type 3 IOCB 696 * @tot_dsds: Total number of segments to transfer 697 * @req: pointer to request queue 698 */ 699inline void 700qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, 701 uint16_t tot_dsds, struct req_que *req) 702{ 703 uint16_t avail_dsds; 704 struct dsd64 *cur_dsd; 705 scsi_qla_host_t *vha; 706 struct scsi_cmnd *cmd; 707 struct scatterlist *sg; 708 int i; 709 struct qla_qpair *qpair = sp->qpair; 710 711 cmd = GET_CMD_SP(sp); 712 713 /* Update entry type to indicate Command Type 3 IOCB */ 714 put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type); 715 716 /* No data transfer */ 717 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { 718 cmd_pkt->byte_count = cpu_to_le32(0); 719 return; 720 } 721 722 vha = sp->vha; 723 724 /* Set transfer direction */ 725 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 726 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA); 727 qpair->counters.output_bytes += scsi_bufflen(cmd); 728 qpair->counters.output_requests++; 729 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 730 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA); 731 qpair->counters.input_bytes += scsi_bufflen(cmd); 732 qpair->counters.input_requests++; 733 } 734 735 /* One DSD is available in the Command Type 3 IOCB */ 736 avail_dsds = 1; 737 cur_dsd = &cmd_pkt->dsd; 738 739 /* Load data segments */ 740 741 scsi_for_each_sg(cmd, sg, tot_dsds, i) { 742 cont_a64_entry_t *cont_pkt; 743 744 /* Allocate additional continuation packets? */ 745 if (avail_dsds == 0) { 746 /* 747 * Five DSDs are available in the Continuation 748 * Type 1 IOCB. 749 */ 750 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req); 751 cur_dsd = cont_pkt->dsd; 752 avail_dsds = ARRAY_SIZE(cont_pkt->dsd); 753 } 754 755 append_dsd64(&cur_dsd, sg); 756 avail_dsds--; 757 } 758} 759 760struct fw_dif_context { 761 __le32 ref_tag; 762 __le16 app_tag; 763 uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ 764 uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ 765}; 766 767/* 768 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command 769 * 770 */ 771static inline void 772qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, 773 unsigned int protcnt) 774{ 775 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 776 777 pkt->ref_tag = cpu_to_le32(scsi_prot_ref_tag(cmd)); 778 779 if (cmd->prot_flags & SCSI_PROT_REF_CHECK && 780 qla2x00_hba_err_chk_enabled(sp)) { 781 pkt->ref_tag_mask[0] = 0xff; 782 pkt->ref_tag_mask[1] = 0xff; 783 pkt->ref_tag_mask[2] = 0xff; 784 pkt->ref_tag_mask[3] = 0xff; 785 } 786 787 pkt->app_tag = cpu_to_le16(0); 788 pkt->app_tag_mask[0] = 0x0; 789 pkt->app_tag_mask[1] = 0x0; 790} 791 792int 793qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, 794 uint32_t *partial) 795{ 796 struct scatterlist *sg; 797 uint32_t cumulative_partial, sg_len; 798 dma_addr_t sg_dma_addr; 799 800 if (sgx->num_bytes == sgx->tot_bytes) 801 return 0; 802 803 sg = sgx->cur_sg; 804 cumulative_partial = sgx->tot_partial; 805 806 sg_dma_addr = sg_dma_address(sg); 807 sg_len = sg_dma_len(sg); 808 809 sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; 810 811 if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { 812 sgx->dma_len = (blk_sz - cumulative_partial); 813 sgx->tot_partial = 0; 814 sgx->num_bytes += blk_sz; 815 *partial = 0; 816 } else { 817 sgx->dma_len = sg_len - sgx->bytes_consumed; 818 sgx->tot_partial += sgx->dma_len; 819 *partial = 1; 820 } 821 822 sgx->bytes_consumed += sgx->dma_len; 823 824 if (sg_len == sgx->bytes_consumed) { 825 sg = sg_next(sg); 826 sgx->num_sg++; 827 sgx->cur_sg = sg; 828 sgx->bytes_consumed = 0; 829 } 830 831 return 1; 832} 833 834int 835qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, 836 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) 837{ 838 void *next_dsd; 839 uint8_t avail_dsds = 0; 840 uint32_t dsd_list_len; 841 struct dsd_dma *dsd_ptr; 842 struct scatterlist *sg_prot; 843 struct dsd64 *cur_dsd = dsd; 844 uint16_t used_dsds = tot_dsds; 845 uint32_t prot_int; /* protection interval */ 846 uint32_t partial; 847 struct qla2_sgx sgx; 848 dma_addr_t sle_dma; 849 uint32_t sle_dma_len, tot_prot_dma_len = 0; 850 struct scsi_cmnd *cmd; 851 852 memset(&sgx, 0, sizeof(struct qla2_sgx)); 853 if (sp) { 854 cmd = GET_CMD_SP(sp); 855 prot_int = scsi_prot_interval(cmd); 856 857 sgx.tot_bytes = scsi_bufflen(cmd); 858 sgx.cur_sg = scsi_sglist(cmd); 859 sgx.sp = sp; 860 861 sg_prot = scsi_prot_sglist(cmd); 862 } else if (tc) { 863 prot_int = tc->blk_sz; 864 sgx.tot_bytes = tc->bufflen; 865 sgx.cur_sg = tc->sg; 866 sg_prot = tc->prot_sg; 867 } else { 868 BUG(); 869 return 1; 870 } 871 872 while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { 873 874 sle_dma = sgx.dma_addr; 875 sle_dma_len = sgx.dma_len; 876alloc_and_fill: 877 /* Allocate additional continuation packets? */ 878 if (avail_dsds == 0) { 879 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 880 QLA_DSDS_PER_IOCB : used_dsds; 881 dsd_list_len = (avail_dsds + 1) * 12; 882 used_dsds -= avail_dsds; 883 884 /* allocate tracking DS */ 885 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 886 if (!dsd_ptr) 887 return 1; 888 889 /* allocate new list */ 890 dsd_ptr->dsd_addr = next_dsd = 891 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 892 &dsd_ptr->dsd_list_dma); 893 894 if (!next_dsd) { 895 /* 896 * Need to cleanup only this dsd_ptr, rest 897 * will be done by sp_free_dma() 898 */ 899 kfree(dsd_ptr); 900 return 1; 901 } 902 903 if (sp) { 904 list_add_tail(&dsd_ptr->list, 905 &sp->u.scmd.crc_ctx->dsd_list); 906 907 sp->flags |= SRB_CRC_CTX_DSD_VALID; 908 } else { 909 list_add_tail(&dsd_ptr->list, 910 &(tc->ctx->dsd_list)); 911 *tc->ctx_dsd_alloced = 1; 912 } 913 914 915 /* add new list to cmd iocb or last list */ 916 put_unaligned_le64(dsd_ptr->dsd_list_dma, 917 &cur_dsd->address); 918 cur_dsd->length = cpu_to_le32(dsd_list_len); 919 cur_dsd = next_dsd; 920 } 921 put_unaligned_le64(sle_dma, &cur_dsd->address); 922 cur_dsd->length = cpu_to_le32(sle_dma_len); 923 cur_dsd++; 924 avail_dsds--; 925 926 if (partial == 0) { 927 /* Got a full protection interval */ 928 sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; 929 sle_dma_len = 8; 930 931 tot_prot_dma_len += sle_dma_len; 932 if (tot_prot_dma_len == sg_dma_len(sg_prot)) { 933 tot_prot_dma_len = 0; 934 sg_prot = sg_next(sg_prot); 935 } 936 937 partial = 1; /* So as to not re-enter this block */ 938 goto alloc_and_fill; 939 } 940 } 941 /* Null termination */ 942 cur_dsd->address = 0; 943 cur_dsd->length = 0; 944 cur_dsd++; 945 return 0; 946} 947 948int 949qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, 950 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) 951{ 952 void *next_dsd; 953 uint8_t avail_dsds = 0; 954 uint32_t dsd_list_len; 955 struct dsd_dma *dsd_ptr; 956 struct scatterlist *sg, *sgl; 957 struct dsd64 *cur_dsd = dsd; 958 int i; 959 uint16_t used_dsds = tot_dsds; 960 struct scsi_cmnd *cmd; 961 962 if (sp) { 963 cmd = GET_CMD_SP(sp); 964 sgl = scsi_sglist(cmd); 965 } else if (tc) { 966 sgl = tc->sg; 967 } else { 968 BUG(); 969 return 1; 970 } 971 972 973 for_each_sg(sgl, sg, tot_dsds, i) { 974 /* Allocate additional continuation packets? */ 975 if (avail_dsds == 0) { 976 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 977 QLA_DSDS_PER_IOCB : used_dsds; 978 dsd_list_len = (avail_dsds + 1) * 12; 979 used_dsds -= avail_dsds; 980 981 /* allocate tracking DS */ 982 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 983 if (!dsd_ptr) 984 return 1; 985 986 /* allocate new list */ 987 dsd_ptr->dsd_addr = next_dsd = 988 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 989 &dsd_ptr->dsd_list_dma); 990 991 if (!next_dsd) { 992 /* 993 * Need to cleanup only this dsd_ptr, rest 994 * will be done by sp_free_dma() 995 */ 996 kfree(dsd_ptr); 997 return 1; 998 } 999 1000 if (sp) { 1001 list_add_tail(&dsd_ptr->list, 1002 &sp->u.scmd.crc_ctx->dsd_list); 1003 1004 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1005 } else { 1006 list_add_tail(&dsd_ptr->list, 1007 &(tc->ctx->dsd_list)); 1008 *tc->ctx_dsd_alloced = 1; 1009 } 1010 1011 /* add new list to cmd iocb or last list */ 1012 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1013 &cur_dsd->address); 1014 cur_dsd->length = cpu_to_le32(dsd_list_len); 1015 cur_dsd = next_dsd; 1016 } 1017 append_dsd64(&cur_dsd, sg); 1018 avail_dsds--; 1019 1020 } 1021 /* Null termination */ 1022 cur_dsd->address = 0; 1023 cur_dsd->length = 0; 1024 cur_dsd++; 1025 return 0; 1026} 1027 1028int 1029qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, 1030 struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc) 1031{ 1032 struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd; 1033 struct scatterlist *sg, *sgl; 1034 struct crc_context *difctx = NULL; 1035 struct scsi_qla_host *vha; 1036 uint dsd_list_len; 1037 uint avail_dsds = 0; 1038 uint used_dsds = tot_dsds; 1039 bool dif_local_dma_alloc = false; 1040 bool direction_to_device = false; 1041 int i; 1042 1043 if (sp) { 1044 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1045 1046 sgl = scsi_prot_sglist(cmd); 1047 vha = sp->vha; 1048 difctx = sp->u.scmd.crc_ctx; 1049 direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE; 1050 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021, 1051 "%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n", 1052 __func__, cmd, difctx, sp); 1053 } else if (tc) { 1054 vha = tc->vha; 1055 sgl = tc->prot_sg; 1056 difctx = tc->ctx; 1057 direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE; 1058 } else { 1059 BUG(); 1060 return 1; 1061 } 1062 1063 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021, 1064 "%s: enter (write=%u)\n", __func__, direction_to_device); 1065 1066 /* if initiator doing write or target doing read */ 1067 if (direction_to_device) { 1068 for_each_sg(sgl, sg, tot_dsds, i) { 1069 u64 sle_phys = sg_phys(sg); 1070 1071 /* If SGE addr + len flips bits in upper 32-bits */ 1072 if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) { 1073 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022, 1074 "%s: page boundary crossing (phys=%llx len=%x)\n", 1075 __func__, sle_phys, sg->length); 1076 1077 if (difctx) { 1078 ha->dif_bundle_crossed_pages++; 1079 dif_local_dma_alloc = true; 1080 } else { 1081 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, 1082 vha, 0xe022, 1083 "%s: difctx pointer is NULL\n", 1084 __func__); 1085 } 1086 break; 1087 } 1088 } 1089 ha->dif_bundle_writes++; 1090 } else { 1091 ha->dif_bundle_reads++; 1092 } 1093 1094 if (ql2xdifbundlinginternalbuffers) 1095 dif_local_dma_alloc = direction_to_device; 1096 1097 if (dif_local_dma_alloc) { 1098 u32 track_difbundl_buf = 0; 1099 u32 ldma_sg_len = 0; 1100 u8 ldma_needed = 1; 1101 1102 difctx->no_dif_bundl = 0; 1103 difctx->dif_bundl_len = 0; 1104 1105 /* Track DSD buffers */ 1106 INIT_LIST_HEAD(&difctx->ldif_dsd_list); 1107 /* Track local DMA buffers */ 1108 INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list); 1109 1110 for_each_sg(sgl, sg, tot_dsds, i) { 1111 u32 sglen = sg_dma_len(sg); 1112 1113 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023, 1114 "%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n", 1115 __func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len, 1116 difctx->dif_bundl_len, ldma_needed); 1117 1118 while (sglen) { 1119 u32 xfrlen = 0; 1120 1121 if (ldma_needed) { 1122 /* 1123 * Allocate list item to store 1124 * the DMA buffers 1125 */ 1126 dsd_ptr = kzalloc(sizeof(*dsd_ptr), 1127 GFP_ATOMIC); 1128 if (!dsd_ptr) { 1129 ql_dbg(ql_dbg_tgt, vha, 0xe024, 1130 "%s: failed alloc dsd_ptr\n", 1131 __func__); 1132 return 1; 1133 } 1134 ha->dif_bundle_kallocs++; 1135 1136 /* allocate dma buffer */ 1137 dsd_ptr->dsd_addr = dma_pool_alloc 1138 (ha->dif_bundl_pool, GFP_ATOMIC, 1139 &dsd_ptr->dsd_list_dma); 1140 if (!dsd_ptr->dsd_addr) { 1141 ql_dbg(ql_dbg_tgt, vha, 0xe024, 1142 "%s: failed alloc ->dsd_ptr\n", 1143 __func__); 1144 /* 1145 * need to cleanup only this 1146 * dsd_ptr rest will be done 1147 * by sp_free_dma() 1148 */ 1149 kfree(dsd_ptr); 1150 ha->dif_bundle_kallocs--; 1151 return 1; 1152 } 1153 ha->dif_bundle_dma_allocs++; 1154 ldma_needed = 0; 1155 difctx->no_dif_bundl++; 1156 list_add_tail(&dsd_ptr->list, 1157 &difctx->ldif_dma_hndl_list); 1158 } 1159 1160 /* xfrlen is min of dma pool size and sglen */ 1161 xfrlen = (sglen > 1162 (DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ? 1163 DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len : 1164 sglen; 1165 1166 /* replace with local allocated dma buffer */ 1167 sg_pcopy_to_buffer(sgl, sg_nents(sgl), 1168 dsd_ptr->dsd_addr + ldma_sg_len, xfrlen, 1169 difctx->dif_bundl_len); 1170 difctx->dif_bundl_len += xfrlen; 1171 sglen -= xfrlen; 1172 ldma_sg_len += xfrlen; 1173 if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE || 1174 sg_is_last(sg)) { 1175 ldma_needed = 1; 1176 ldma_sg_len = 0; 1177 } 1178 } 1179 } 1180 1181 track_difbundl_buf = used_dsds = difctx->no_dif_bundl; 1182 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025, 1183 "dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n", 1184 difctx->dif_bundl_len, difctx->no_dif_bundl, 1185 track_difbundl_buf); 1186 1187 if (sp) 1188 sp->flags |= SRB_DIF_BUNDL_DMA_VALID; 1189 else 1190 tc->prot_flags = DIF_BUNDL_DMA_VALID; 1191 1192 list_for_each_entry_safe(dif_dsd, nxt_dsd, 1193 &difctx->ldif_dma_hndl_list, list) { 1194 u32 sglen = (difctx->dif_bundl_len > 1195 DIF_BUNDLING_DMA_POOL_SIZE) ? 1196 DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len; 1197 1198 BUG_ON(track_difbundl_buf == 0); 1199 1200 /* Allocate additional continuation packets? */ 1201 if (avail_dsds == 0) { 1202 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 1203 0xe024, 1204 "%s: adding continuation iocb's\n", 1205 __func__); 1206 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1207 QLA_DSDS_PER_IOCB : used_dsds; 1208 dsd_list_len = (avail_dsds + 1) * 12; 1209 used_dsds -= avail_dsds; 1210 1211 /* allocate tracking DS */ 1212 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); 1213 if (!dsd_ptr) { 1214 ql_dbg(ql_dbg_tgt, vha, 0xe026, 1215 "%s: failed alloc dsd_ptr\n", 1216 __func__); 1217 return 1; 1218 } 1219 ha->dif_bundle_kallocs++; 1220 1221 difctx->no_ldif_dsd++; 1222 /* allocate new list */ 1223 dsd_ptr->dsd_addr = 1224 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1225 &dsd_ptr->dsd_list_dma); 1226 if (!dsd_ptr->dsd_addr) { 1227 ql_dbg(ql_dbg_tgt, vha, 0xe026, 1228 "%s: failed alloc ->dsd_addr\n", 1229 __func__); 1230 /* 1231 * need to cleanup only this dsd_ptr 1232 * rest will be done by sp_free_dma() 1233 */ 1234 kfree(dsd_ptr); 1235 ha->dif_bundle_kallocs--; 1236 return 1; 1237 } 1238 ha->dif_bundle_dma_allocs++; 1239 1240 if (sp) { 1241 list_add_tail(&dsd_ptr->list, 1242 &difctx->ldif_dsd_list); 1243 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1244 } else { 1245 list_add_tail(&dsd_ptr->list, 1246 &difctx->ldif_dsd_list); 1247 tc->ctx_dsd_alloced = 1; 1248 } 1249 1250 /* add new list to cmd iocb or last list */ 1251 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1252 &cur_dsd->address); 1253 cur_dsd->length = cpu_to_le32(dsd_list_len); 1254 cur_dsd = dsd_ptr->dsd_addr; 1255 } 1256 put_unaligned_le64(dif_dsd->dsd_list_dma, 1257 &cur_dsd->address); 1258 cur_dsd->length = cpu_to_le32(sglen); 1259 cur_dsd++; 1260 avail_dsds--; 1261 difctx->dif_bundl_len -= sglen; 1262 track_difbundl_buf--; 1263 } 1264 1265 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026, 1266 "%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__, 1267 difctx->no_ldif_dsd, difctx->no_dif_bundl); 1268 } else { 1269 for_each_sg(sgl, sg, tot_dsds, i) { 1270 /* Allocate additional continuation packets? */ 1271 if (avail_dsds == 0) { 1272 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? 1273 QLA_DSDS_PER_IOCB : used_dsds; 1274 dsd_list_len = (avail_dsds + 1) * 12; 1275 used_dsds -= avail_dsds; 1276 1277 /* allocate tracking DS */ 1278 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); 1279 if (!dsd_ptr) { 1280 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, 1281 vha, 0xe027, 1282 "%s: failed alloc dsd_dma...\n", 1283 __func__); 1284 return 1; 1285 } 1286 1287 /* allocate new list */ 1288 dsd_ptr->dsd_addr = 1289 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, 1290 &dsd_ptr->dsd_list_dma); 1291 if (!dsd_ptr->dsd_addr) { 1292 /* need to cleanup only this dsd_ptr */ 1293 /* rest will be done by sp_free_dma() */ 1294 kfree(dsd_ptr); 1295 return 1; 1296 } 1297 1298 if (sp) { 1299 list_add_tail(&dsd_ptr->list, 1300 &difctx->dsd_list); 1301 sp->flags |= SRB_CRC_CTX_DSD_VALID; 1302 } else { 1303 list_add_tail(&dsd_ptr->list, 1304 &difctx->dsd_list); 1305 tc->ctx_dsd_alloced = 1; 1306 } 1307 1308 /* add new list to cmd iocb or last list */ 1309 put_unaligned_le64(dsd_ptr->dsd_list_dma, 1310 &cur_dsd->address); 1311 cur_dsd->length = cpu_to_le32(dsd_list_len); 1312 cur_dsd = dsd_ptr->dsd_addr; 1313 } 1314 append_dsd64(&cur_dsd, sg); 1315 avail_dsds--; 1316 } 1317 } 1318 /* Null termination */ 1319 cur_dsd->address = 0; 1320 cur_dsd->length = 0; 1321 cur_dsd++; 1322 return 0; 1323} 1324 1325/** 1326 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command 1327 * Type 6 IOCB types. 1328 * 1329 * @sp: SRB command to process 1330 * @cmd_pkt: Command type 3 IOCB 1331 * @tot_dsds: Total number of segments to transfer 1332 * @tot_prot_dsds: Total number of segments with protection information 1333 * @fw_prot_opts: Protection options to be passed to firmware 1334 */ 1335static inline int 1336qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, 1337 uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) 1338{ 1339 struct dsd64 *cur_dsd; 1340 __be32 *fcp_dl; 1341 scsi_qla_host_t *vha; 1342 struct scsi_cmnd *cmd; 1343 uint32_t total_bytes = 0; 1344 uint32_t data_bytes; 1345 uint32_t dif_bytes; 1346 uint8_t bundling = 1; 1347 uint16_t blk_size; 1348 struct crc_context *crc_ctx_pkt = NULL; 1349 struct qla_hw_data *ha; 1350 uint8_t additional_fcpcdb_len; 1351 uint16_t fcp_cmnd_len; 1352 struct fcp_cmnd *fcp_cmnd; 1353 dma_addr_t crc_ctx_dma; 1354 1355 cmd = GET_CMD_SP(sp); 1356 1357 /* Update entry type to indicate Command Type CRC_2 IOCB */ 1358 put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type); 1359 1360 vha = sp->vha; 1361 ha = vha->hw; 1362 1363 /* No data transfer */ 1364 data_bytes = scsi_bufflen(cmd); 1365 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { 1366 cmd_pkt->byte_count = cpu_to_le32(0); 1367 return QLA_SUCCESS; 1368 } 1369 1370 cmd_pkt->vp_index = sp->vha->vp_idx; 1371 1372 /* Set transfer direction */ 1373 if (cmd->sc_data_direction == DMA_TO_DEVICE) { 1374 cmd_pkt->control_flags = 1375 cpu_to_le16(CF_WRITE_DATA); 1376 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { 1377 cmd_pkt->control_flags = 1378 cpu_to_le16(CF_READ_DATA); 1379 } 1380 1381 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1382 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || 1383 (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || 1384 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) 1385 bundling = 0; 1386 1387 /* Allocate CRC context from global pool */ 1388 crc_ctx_pkt = sp->u.scmd.crc_ctx = 1389 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); 1390 1391 if (!crc_ctx_pkt) 1392 goto crc_queuing_error; 1393 1394 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; 1395 1396 sp->flags |= SRB_CRC_CTX_DMA_VALID; 1397 1398 /* Set handle */ 1399 crc_ctx_pkt->handle = cmd_pkt->handle; 1400 1401 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); 1402 1403 qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) 1404 &crc_ctx_pkt->ref_tag, tot_prot_dsds); 1405 1406 put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address); 1407 cmd_pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW); 1408 1409 /* Determine SCSI command length -- align to 4 byte boundary */ 1410 if (cmd->cmd_len > 16) { 1411 additional_fcpcdb_len = cmd->cmd_len - 16; 1412 if ((cmd->cmd_len % 4) != 0) { 1413 /* SCSI cmd > 16 bytes must be multiple of 4 */ 1414 goto crc_queuing_error; 1415 } 1416 fcp_cmnd_len = 12 + cmd->cmd_len + 4; 1417 } else { 1418 additional_fcpcdb_len = 0; 1419 fcp_cmnd_len = 12 + 16 + 4; 1420 } 1421 1422 fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; 1423 1424 fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; 1425 if (cmd->sc_data_direction == DMA_TO_DEVICE) 1426 fcp_cmnd->additional_cdb_len |= 1; 1427 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 1428 fcp_cmnd->additional_cdb_len |= 2; 1429 1430 int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); 1431 memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 1432 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); 1433 put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF, 1434 &cmd_pkt->fcp_cmnd_dseg_address); 1435 fcp_cmnd->task_management = 0; 1436 fcp_cmnd->task_attribute = TSK_SIMPLE; 1437 1438 cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ 1439 1440 /* Compute dif len and adjust data len to incude protection */ 1441 dif_bytes = 0; 1442 blk_size = cmd->device->sector_size; 1443 dif_bytes = (data_bytes / blk_size) * 8; 1444 1445 switch (scsi_get_prot_op(GET_CMD_SP(sp))) { 1446 case SCSI_PROT_READ_INSERT: 1447 case SCSI_PROT_WRITE_STRIP: 1448 total_bytes = data_bytes; 1449 data_bytes += dif_bytes; 1450 break; 1451 1452 case SCSI_PROT_READ_STRIP: 1453 case SCSI_PROT_WRITE_INSERT: 1454 case SCSI_PROT_READ_PASS: 1455 case SCSI_PROT_WRITE_PASS: 1456 total_bytes = data_bytes + dif_bytes; 1457 break; 1458 default: 1459 BUG(); 1460 } 1461 1462 if (!qla2x00_hba_err_chk_enabled(sp)) 1463 fw_prot_opts |= 0x10; /* Disable Guard tag checking */ 1464 /* HBA error checking enabled */ 1465 else if (IS_PI_UNINIT_CAPABLE(ha)) { 1466 if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) 1467 || (scsi_get_prot_type(GET_CMD_SP(sp)) == 1468 SCSI_PROT_DIF_TYPE2)) 1469 fw_prot_opts |= BIT_10; 1470 else if (scsi_get_prot_type(GET_CMD_SP(sp)) == 1471 SCSI_PROT_DIF_TYPE3) 1472 fw_prot_opts |= BIT_11; 1473 } 1474 1475 if (!bundling) { 1476 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0]; 1477 } else { 1478 /* 1479 * Configure Bundling if we need to fetch interlaving 1480 * protection PCI accesses 1481 */ 1482 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; 1483 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); 1484 crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - 1485 tot_prot_dsds); 1486 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0]; 1487 } 1488 1489 /* Finish the common fields of CRC pkt */ 1490 crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); 1491 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); 1492 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); 1493 crc_ctx_pkt->guard_seed = cpu_to_le16(0); 1494 /* Fibre channel byte count */ 1495 cmd_pkt->byte_count = cpu_to_le32(total_bytes); 1496 fcp_dl = (__be32 *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + 1497 additional_fcpcdb_len); 1498 *fcp_dl = htonl(total_bytes); 1499 1500 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { 1501 cmd_pkt->byte_count = cpu_to_le32(0); 1502 return QLA_SUCCESS; 1503 } 1504 /* Walks data segments */ 1505 1506 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); 1507 1508 if (!bundling && tot_prot_dsds) { 1509 if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, 1510 cur_dsd, tot_dsds, NULL)) 1511 goto crc_queuing_error; 1512 } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, 1513 (tot_dsds - tot_prot_dsds), NULL)) 1514 goto crc_queuing_error; 1515 1516 if (bundling && tot_prot_dsds) { 1517 /* Walks dif segments */ 1518 cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); 1519 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd; 1520 if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, 1521 tot_prot_dsds, NULL)) 1522 goto crc_queuing_error; 1523 } 1524 return QLA_SUCCESS; 1525 1526crc_queuing_error: 1527 /* Cleanup will be performed by the caller */ 1528 1529 return QLA_FUNCTION_FAILED; 1530} 1531 1532/** 1533 * qla24xx_start_scsi() - Send a SCSI command to the ISP 1534 * @sp: command to send to the ISP 1535 * 1536 * Returns non-zero if a failure occurred, else zero. 1537 */ 1538int 1539qla24xx_start_scsi(srb_t *sp) 1540{ 1541 int nseg; 1542 unsigned long flags; 1543 uint32_t *clr_ptr; 1544 uint32_t handle; 1545 struct cmd_type_7 *cmd_pkt; 1546 uint16_t cnt; 1547 uint16_t req_cnt; 1548 uint16_t tot_dsds; 1549 struct req_que *req = NULL; 1550 struct rsp_que *rsp; 1551 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1552 struct scsi_qla_host *vha = sp->vha; 1553 struct qla_hw_data *ha = vha->hw; 1554 1555 if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE)) 1556 return qla28xx_start_scsi_edif(sp); 1557 1558 /* Setup device pointers. */ 1559 req = vha->req; 1560 rsp = req->rsp; 1561 1562 /* So we know we haven't pci_map'ed anything yet */ 1563 tot_dsds = 0; 1564 1565 /* Send marker if required */ 1566 if (vha->marker_needed != 0) { 1567 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 1568 QLA_SUCCESS) 1569 return QLA_FUNCTION_FAILED; 1570 vha->marker_needed = 0; 1571 } 1572 1573 /* Acquire ring specific lock */ 1574 spin_lock_irqsave(&ha->hardware_lock, flags); 1575 1576 handle = qla2xxx_get_next_handle(req); 1577 if (handle == 0) 1578 goto queuing_error; 1579 1580 /* Map the sg table so we have an accurate count of sg entries needed */ 1581 if (scsi_sg_count(cmd)) { 1582 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1583 scsi_sg_count(cmd), cmd->sc_data_direction); 1584 if (unlikely(!nseg)) 1585 goto queuing_error; 1586 } else 1587 nseg = 0; 1588 1589 tot_dsds = nseg; 1590 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1591 1592 sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; 1593 sp->iores.exch_cnt = 1; 1594 sp->iores.iocb_cnt = req_cnt; 1595 if (qla_get_fw_resources(sp->qpair, &sp->iores)) 1596 goto queuing_error; 1597 1598 if (req->cnt < (req_cnt + 2)) { 1599 if (IS_SHADOW_REG_CAPABLE(ha)) { 1600 cnt = *req->out_ptr; 1601 } else { 1602 cnt = rd_reg_dword_relaxed(req->req_q_out); 1603 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1604 goto queuing_error; 1605 } 1606 1607 if (req->ring_index < cnt) 1608 req->cnt = cnt - req->ring_index; 1609 else 1610 req->cnt = req->length - 1611 (req->ring_index - cnt); 1612 if (req->cnt < (req_cnt + 2)) 1613 goto queuing_error; 1614 } 1615 1616 /* Build command packet. */ 1617 req->current_outstanding_cmd = handle; 1618 req->outstanding_cmds[handle] = sp; 1619 sp->handle = handle; 1620 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1621 req->cnt -= req_cnt; 1622 1623 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1624 cmd_pkt->handle = make_handle(req->id, handle); 1625 1626 /* Zero out remaining portion of packet. */ 1627 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1628 clr_ptr = (uint32_t *)cmd_pkt + 2; 1629 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1630 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1631 1632 /* Set NPORT-ID and LUN number*/ 1633 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1634 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1635 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1636 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1637 cmd_pkt->vp_index = sp->vha->vp_idx; 1638 1639 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1640 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1641 1642 cmd_pkt->task = TSK_SIMPLE; 1643 1644 /* Load SCSI command packet. */ 1645 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 1646 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 1647 1648 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 1649 1650 /* Build IOCB segments */ 1651 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 1652 1653 /* Set total data segment count. */ 1654 cmd_pkt->entry_count = (uint8_t)req_cnt; 1655 wmb(); 1656 /* Adjust ring index. */ 1657 req->ring_index++; 1658 if (req->ring_index == req->length) { 1659 req->ring_index = 0; 1660 req->ring_ptr = req->ring; 1661 } else 1662 req->ring_ptr++; 1663 1664 sp->qpair->cmd_cnt++; 1665 sp->flags |= SRB_DMA_VALID; 1666 1667 /* Set chip new ring index. */ 1668 wrt_reg_dword(req->req_q_in, req->ring_index); 1669 1670 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1671 if (vha->flags.process_response_queue && 1672 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1673 qla24xx_process_response_queue(vha, rsp); 1674 1675 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1676 return QLA_SUCCESS; 1677 1678queuing_error: 1679 if (tot_dsds) 1680 scsi_dma_unmap(cmd); 1681 1682 qla_put_fw_resources(sp->qpair, &sp->iores); 1683 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1684 1685 return QLA_FUNCTION_FAILED; 1686} 1687 1688/** 1689 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP 1690 * @sp: command to send to the ISP 1691 * 1692 * Returns non-zero if a failure occurred, else zero. 1693 */ 1694int 1695qla24xx_dif_start_scsi(srb_t *sp) 1696{ 1697 int nseg; 1698 unsigned long flags; 1699 uint32_t *clr_ptr; 1700 uint32_t handle; 1701 uint16_t cnt; 1702 uint16_t req_cnt = 0; 1703 uint16_t tot_dsds; 1704 uint16_t tot_prot_dsds; 1705 uint16_t fw_prot_opts = 0; 1706 struct req_que *req = NULL; 1707 struct rsp_que *rsp = NULL; 1708 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1709 struct scsi_qla_host *vha = sp->vha; 1710 struct qla_hw_data *ha = vha->hw; 1711 struct cmd_type_crc_2 *cmd_pkt; 1712 uint32_t status = 0; 1713 1714#define QDSS_GOT_Q_SPACE BIT_0 1715 1716 /* Only process protection or >16 cdb in this routine */ 1717 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 1718 if (cmd->cmd_len <= 16) 1719 return qla24xx_start_scsi(sp); 1720 else 1721 return qla_start_scsi_type6(sp); 1722 } 1723 1724 /* Setup device pointers. */ 1725 req = vha->req; 1726 rsp = req->rsp; 1727 1728 /* So we know we haven't pci_map'ed anything yet */ 1729 tot_dsds = 0; 1730 1731 /* Send marker if required */ 1732 if (vha->marker_needed != 0) { 1733 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) != 1734 QLA_SUCCESS) 1735 return QLA_FUNCTION_FAILED; 1736 vha->marker_needed = 0; 1737 } 1738 1739 /* Acquire ring specific lock */ 1740 spin_lock_irqsave(&ha->hardware_lock, flags); 1741 1742 handle = qla2xxx_get_next_handle(req); 1743 if (handle == 0) 1744 goto queuing_error; 1745 1746 /* Compute number of required data segments */ 1747 /* Map the sg table so we have an accurate count of sg entries needed */ 1748 if (scsi_sg_count(cmd)) { 1749 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 1750 scsi_sg_count(cmd), cmd->sc_data_direction); 1751 if (unlikely(!nseg)) 1752 goto queuing_error; 1753 else 1754 sp->flags |= SRB_DMA_VALID; 1755 1756 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1757 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1758 struct qla2_sgx sgx; 1759 uint32_t partial; 1760 1761 memset(&sgx, 0, sizeof(struct qla2_sgx)); 1762 sgx.tot_bytes = scsi_bufflen(cmd); 1763 sgx.cur_sg = scsi_sglist(cmd); 1764 sgx.sp = sp; 1765 1766 nseg = 0; 1767 while (qla24xx_get_one_block_sg( 1768 cmd->device->sector_size, &sgx, &partial)) 1769 nseg++; 1770 } 1771 } else 1772 nseg = 0; 1773 1774 /* number of required data segments */ 1775 tot_dsds = nseg; 1776 1777 /* Compute number of required protection segments */ 1778 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 1779 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 1780 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 1781 if (unlikely(!nseg)) 1782 goto queuing_error; 1783 else 1784 sp->flags |= SRB_CRC_PROT_DMA_VALID; 1785 1786 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 1787 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 1788 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 1789 } 1790 } else { 1791 nseg = 0; 1792 } 1793 1794 req_cnt = 1; 1795 /* Total Data and protection sg segment(s) */ 1796 tot_prot_dsds = nseg; 1797 tot_dsds += nseg; 1798 1799 sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; 1800 sp->iores.exch_cnt = 1; 1801 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 1802 if (qla_get_fw_resources(sp->qpair, &sp->iores)) 1803 goto queuing_error; 1804 1805 if (req->cnt < (req_cnt + 2)) { 1806 if (IS_SHADOW_REG_CAPABLE(ha)) { 1807 cnt = *req->out_ptr; 1808 } else { 1809 cnt = rd_reg_dword_relaxed(req->req_q_out); 1810 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1811 goto queuing_error; 1812 } 1813 if (req->ring_index < cnt) 1814 req->cnt = cnt - req->ring_index; 1815 else 1816 req->cnt = req->length - 1817 (req->ring_index - cnt); 1818 if (req->cnt < (req_cnt + 2)) 1819 goto queuing_error; 1820 } 1821 1822 status |= QDSS_GOT_Q_SPACE; 1823 1824 /* Build header part of command packet (excluding the OPCODE). */ 1825 req->current_outstanding_cmd = handle; 1826 req->outstanding_cmds[handle] = sp; 1827 sp->handle = handle; 1828 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1829 req->cnt -= req_cnt; 1830 1831 /* Fill-in common area */ 1832 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 1833 cmd_pkt->handle = make_handle(req->id, handle); 1834 1835 clr_ptr = (uint32_t *)cmd_pkt + 2; 1836 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1837 1838 /* Set NPORT-ID and LUN number*/ 1839 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 1840 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 1841 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 1842 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 1843 1844 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 1845 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 1846 1847 /* Total Data and protection segment(s) */ 1848 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1849 1850 /* Build IOCB segments and adjust for data protection segments */ 1851 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 1852 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 1853 QLA_SUCCESS) 1854 goto queuing_error; 1855 1856 cmd_pkt->entry_count = (uint8_t)req_cnt; 1857 /* Specify response queue number where completion should happen */ 1858 cmd_pkt->entry_status = (uint8_t) rsp->id; 1859 cmd_pkt->timeout = cpu_to_le16(0); 1860 wmb(); 1861 1862 /* Adjust ring index. */ 1863 req->ring_index++; 1864 if (req->ring_index == req->length) { 1865 req->ring_index = 0; 1866 req->ring_ptr = req->ring; 1867 } else 1868 req->ring_ptr++; 1869 1870 sp->qpair->cmd_cnt++; 1871 /* Set chip new ring index. */ 1872 wrt_reg_dword(req->req_q_in, req->ring_index); 1873 1874 /* Manage unprocessed RIO/ZIO commands in response queue. */ 1875 if (vha->flags.process_response_queue && 1876 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 1877 qla24xx_process_response_queue(vha, rsp); 1878 1879 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1880 1881 return QLA_SUCCESS; 1882 1883queuing_error: 1884 if (status & QDSS_GOT_Q_SPACE) { 1885 req->outstanding_cmds[handle] = NULL; 1886 req->cnt += req_cnt; 1887 } 1888 /* Cleanup will be performed by the caller (queuecommand) */ 1889 1890 qla_put_fw_resources(sp->qpair, &sp->iores); 1891 spin_unlock_irqrestore(&ha->hardware_lock, flags); 1892 1893 return QLA_FUNCTION_FAILED; 1894} 1895 1896/** 1897 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP 1898 * @sp: command to send to the ISP 1899 * 1900 * Returns non-zero if a failure occurred, else zero. 1901 */ 1902static int 1903qla2xxx_start_scsi_mq(srb_t *sp) 1904{ 1905 int nseg; 1906 unsigned long flags; 1907 uint32_t *clr_ptr; 1908 uint32_t handle; 1909 struct cmd_type_7 *cmd_pkt; 1910 uint16_t cnt; 1911 uint16_t req_cnt; 1912 uint16_t tot_dsds; 1913 struct req_que *req = NULL; 1914 struct rsp_que *rsp; 1915 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 1916 struct scsi_qla_host *vha = sp->fcport->vha; 1917 struct qla_hw_data *ha = vha->hw; 1918 struct qla_qpair *qpair = sp->qpair; 1919 1920 if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE)) 1921 return qla28xx_start_scsi_edif(sp); 1922 1923 /* Acquire qpair specific lock */ 1924 spin_lock_irqsave(&qpair->qp_lock, flags); 1925 1926 /* Setup qpair pointers */ 1927 req = qpair->req; 1928 rsp = qpair->rsp; 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 1959 sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; 1960 sp->iores.exch_cnt = 1; 1961 sp->iores.iocb_cnt = req_cnt; 1962 if (qla_get_fw_resources(sp->qpair, &sp->iores)) 1963 goto queuing_error; 1964 1965 if (req->cnt < (req_cnt + 2)) { 1966 if (IS_SHADOW_REG_CAPABLE(ha)) { 1967 cnt = *req->out_ptr; 1968 } else { 1969 cnt = rd_reg_dword_relaxed(req->req_q_out); 1970 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 1971 goto queuing_error; 1972 } 1973 1974 if (req->ring_index < cnt) 1975 req->cnt = cnt - req->ring_index; 1976 else 1977 req->cnt = req->length - 1978 (req->ring_index - cnt); 1979 if (req->cnt < (req_cnt + 2)) 1980 goto queuing_error; 1981 } 1982 1983 /* Build command packet. */ 1984 req->current_outstanding_cmd = handle; 1985 req->outstanding_cmds[handle] = sp; 1986 sp->handle = handle; 1987 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 1988 req->cnt -= req_cnt; 1989 1990 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 1991 cmd_pkt->handle = make_handle(req->id, handle); 1992 1993 /* Zero out remaining portion of packet. */ 1994 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 1995 clr_ptr = (uint32_t *)cmd_pkt + 2; 1996 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 1997 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 1998 1999 /* Set NPORT-ID and LUN number*/ 2000 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2001 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2002 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2003 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2004 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 2005 2006 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 2007 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2008 2009 cmd_pkt->task = TSK_SIMPLE; 2010 2011 /* Load SCSI command packet. */ 2012 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 2013 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 2014 2015 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 2016 2017 /* Build IOCB segments */ 2018 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 2019 2020 /* Set total data segment count. */ 2021 cmd_pkt->entry_count = (uint8_t)req_cnt; 2022 wmb(); 2023 /* Adjust ring index. */ 2024 req->ring_index++; 2025 if (req->ring_index == req->length) { 2026 req->ring_index = 0; 2027 req->ring_ptr = req->ring; 2028 } else 2029 req->ring_ptr++; 2030 2031 sp->qpair->cmd_cnt++; 2032 sp->flags |= SRB_DMA_VALID; 2033 2034 /* Set chip new ring index. */ 2035 wrt_reg_dword(req->req_q_in, req->ring_index); 2036 2037 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2038 if (vha->flags.process_response_queue && 2039 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2040 qla24xx_process_response_queue(vha, rsp); 2041 2042 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2043 return QLA_SUCCESS; 2044 2045queuing_error: 2046 if (tot_dsds) 2047 scsi_dma_unmap(cmd); 2048 2049 qla_put_fw_resources(sp->qpair, &sp->iores); 2050 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2051 2052 return QLA_FUNCTION_FAILED; 2053} 2054 2055 2056/** 2057 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP 2058 * @sp: command to send to the ISP 2059 * 2060 * Returns non-zero if a failure occurred, else zero. 2061 */ 2062int 2063qla2xxx_dif_start_scsi_mq(srb_t *sp) 2064{ 2065 int nseg; 2066 unsigned long flags; 2067 uint32_t *clr_ptr; 2068 uint32_t handle; 2069 uint16_t cnt; 2070 uint16_t req_cnt = 0; 2071 uint16_t tot_dsds; 2072 uint16_t tot_prot_dsds; 2073 uint16_t fw_prot_opts = 0; 2074 struct req_que *req = NULL; 2075 struct rsp_que *rsp = NULL; 2076 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 2077 struct scsi_qla_host *vha = sp->fcport->vha; 2078 struct qla_hw_data *ha = vha->hw; 2079 struct cmd_type_crc_2 *cmd_pkt; 2080 uint32_t status = 0; 2081 struct qla_qpair *qpair = sp->qpair; 2082 2083#define QDSS_GOT_Q_SPACE BIT_0 2084 2085 /* Check for host side state */ 2086 if (!qpair->online) { 2087 cmd->result = DID_NO_CONNECT << 16; 2088 return QLA_INTERFACE_ERROR; 2089 } 2090 2091 if (!qpair->difdix_supported && 2092 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { 2093 cmd->result = DID_NO_CONNECT << 16; 2094 return QLA_INTERFACE_ERROR; 2095 } 2096 2097 /* Only process protection or >16 cdb in this routine */ 2098 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { 2099 if (cmd->cmd_len <= 16) 2100 return qla2xxx_start_scsi_mq(sp); 2101 else 2102 return qla_start_scsi_type6(sp); 2103 } 2104 2105 spin_lock_irqsave(&qpair->qp_lock, flags); 2106 2107 /* Setup qpair pointers */ 2108 rsp = qpair->rsp; 2109 req = qpair->req; 2110 2111 /* So we know we haven't pci_map'ed anything yet */ 2112 tot_dsds = 0; 2113 2114 /* Send marker if required */ 2115 if (vha->marker_needed != 0) { 2116 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != 2117 QLA_SUCCESS) { 2118 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2119 return QLA_FUNCTION_FAILED; 2120 } 2121 vha->marker_needed = 0; 2122 } 2123 2124 handle = qla2xxx_get_next_handle(req); 2125 if (handle == 0) 2126 goto queuing_error; 2127 2128 /* Compute number of required data segments */ 2129 /* Map the sg table so we have an accurate count of sg entries needed */ 2130 if (scsi_sg_count(cmd)) { 2131 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 2132 scsi_sg_count(cmd), cmd->sc_data_direction); 2133 if (unlikely(!nseg)) 2134 goto queuing_error; 2135 else 2136 sp->flags |= SRB_DMA_VALID; 2137 2138 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2139 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2140 struct qla2_sgx sgx; 2141 uint32_t partial; 2142 2143 memset(&sgx, 0, sizeof(struct qla2_sgx)); 2144 sgx.tot_bytes = scsi_bufflen(cmd); 2145 sgx.cur_sg = scsi_sglist(cmd); 2146 sgx.sp = sp; 2147 2148 nseg = 0; 2149 while (qla24xx_get_one_block_sg( 2150 cmd->device->sector_size, &sgx, &partial)) 2151 nseg++; 2152 } 2153 } else 2154 nseg = 0; 2155 2156 /* number of required data segments */ 2157 tot_dsds = nseg; 2158 2159 /* Compute number of required protection segments */ 2160 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { 2161 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), 2162 scsi_prot_sg_count(cmd), cmd->sc_data_direction); 2163 if (unlikely(!nseg)) 2164 goto queuing_error; 2165 else 2166 sp->flags |= SRB_CRC_PROT_DMA_VALID; 2167 2168 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || 2169 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { 2170 nseg = scsi_bufflen(cmd) / cmd->device->sector_size; 2171 } 2172 } else { 2173 nseg = 0; 2174 } 2175 2176 req_cnt = 1; 2177 /* Total Data and protection sg segment(s) */ 2178 tot_prot_dsds = nseg; 2179 tot_dsds += nseg; 2180 2181 sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; 2182 sp->iores.exch_cnt = 1; 2183 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 2184 if (qla_get_fw_resources(sp->qpair, &sp->iores)) 2185 goto queuing_error; 2186 2187 if (req->cnt < (req_cnt + 2)) { 2188 if (IS_SHADOW_REG_CAPABLE(ha)) { 2189 cnt = *req->out_ptr; 2190 } else { 2191 cnt = rd_reg_dword_relaxed(req->req_q_out); 2192 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 2193 goto queuing_error; 2194 } 2195 2196 if (req->ring_index < cnt) 2197 req->cnt = cnt - req->ring_index; 2198 else 2199 req->cnt = req->length - 2200 (req->ring_index - cnt); 2201 if (req->cnt < (req_cnt + 2)) 2202 goto queuing_error; 2203 } 2204 2205 status |= QDSS_GOT_Q_SPACE; 2206 2207 /* Build header part of command packet (excluding the OPCODE). */ 2208 req->current_outstanding_cmd = handle; 2209 req->outstanding_cmds[handle] = sp; 2210 sp->handle = handle; 2211 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 2212 req->cnt -= req_cnt; 2213 2214 /* Fill-in common area */ 2215 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; 2216 cmd_pkt->handle = make_handle(req->id, handle); 2217 2218 clr_ptr = (uint32_t *)cmd_pkt + 2; 2219 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 2220 2221 /* Set NPORT-ID and LUN number*/ 2222 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2223 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 2224 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 2225 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 2226 2227 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 2228 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 2229 2230 /* Total Data and protection segment(s) */ 2231 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 2232 2233 /* Build IOCB segments and adjust for data protection segments */ 2234 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) 2235 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != 2236 QLA_SUCCESS) 2237 goto queuing_error; 2238 2239 cmd_pkt->entry_count = (uint8_t)req_cnt; 2240 cmd_pkt->timeout = cpu_to_le16(0); 2241 wmb(); 2242 2243 /* Adjust ring index. */ 2244 req->ring_index++; 2245 if (req->ring_index == req->length) { 2246 req->ring_index = 0; 2247 req->ring_ptr = req->ring; 2248 } else 2249 req->ring_ptr++; 2250 2251 sp->qpair->cmd_cnt++; 2252 /* Set chip new ring index. */ 2253 wrt_reg_dword(req->req_q_in, req->ring_index); 2254 2255 /* Manage unprocessed RIO/ZIO commands in response queue. */ 2256 if (vha->flags.process_response_queue && 2257 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 2258 qla24xx_process_response_queue(vha, rsp); 2259 2260 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2261 2262 return QLA_SUCCESS; 2263 2264queuing_error: 2265 if (status & QDSS_GOT_Q_SPACE) { 2266 req->outstanding_cmds[handle] = NULL; 2267 req->cnt += req_cnt; 2268 } 2269 /* Cleanup will be performed by the caller (queuecommand) */ 2270 2271 qla_put_fw_resources(sp->qpair, &sp->iores); 2272 spin_unlock_irqrestore(&qpair->qp_lock, flags); 2273 2274 return QLA_FUNCTION_FAILED; 2275} 2276 2277/* Generic Control-SRB manipulation functions. */ 2278 2279/* hardware_lock assumed to be held. */ 2280 2281void * 2282__qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp) 2283{ 2284 scsi_qla_host_t *vha = qpair->vha; 2285 struct qla_hw_data *ha = vha->hw; 2286 struct req_que *req = qpair->req; 2287 device_reg_t *reg = ISP_QUE_REG(ha, req->id); 2288 uint32_t handle; 2289 request_t *pkt; 2290 uint16_t cnt, req_cnt; 2291 2292 pkt = NULL; 2293 req_cnt = 1; 2294 handle = 0; 2295 2296 if (sp && (sp->type != SRB_SCSI_CMD)) { 2297 /* Adjust entry-counts as needed. */ 2298 req_cnt = sp->iocbs; 2299 } 2300 2301 /* Check for room on request queue. */ 2302 if (req->cnt < req_cnt + 2) { 2303 if (qpair->use_shadow_reg) 2304 cnt = *req->out_ptr; 2305 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) || 2306 IS_QLA28XX(ha)) 2307 cnt = rd_reg_dword(®->isp25mq.req_q_out); 2308 else if (IS_P3P_TYPE(ha)) 2309 cnt = rd_reg_dword(reg->isp82.req_q_out); 2310 else if (IS_FWI2_CAPABLE(ha)) 2311 cnt = rd_reg_dword(®->isp24.req_q_out); 2312 else if (IS_QLAFX00(ha)) 2313 cnt = rd_reg_dword(®->ispfx00.req_q_out); 2314 else 2315 cnt = qla2x00_debounce_register( 2316 ISP_REQ_Q_OUT(ha, ®->isp)); 2317 2318 if (!qpair->use_shadow_reg && cnt == ISP_REG16_DISCONNECT) { 2319 qla_schedule_eeh_work(vha); 2320 return NULL; 2321 } 2322 2323 if (req->ring_index < cnt) 2324 req->cnt = cnt - req->ring_index; 2325 else 2326 req->cnt = req->length - 2327 (req->ring_index - cnt); 2328 } 2329 if (req->cnt < req_cnt + 2) 2330 goto queuing_error; 2331 2332 if (sp) { 2333 handle = qla2xxx_get_next_handle(req); 2334 if (handle == 0) { 2335 ql_log(ql_log_warn, vha, 0x700b, 2336 "No room on outstanding cmd array.\n"); 2337 goto queuing_error; 2338 } 2339 2340 /* Prep command array. */ 2341 req->current_outstanding_cmd = handle; 2342 req->outstanding_cmds[handle] = sp; 2343 sp->handle = handle; 2344 } 2345 2346 /* Prep packet */ 2347 req->cnt -= req_cnt; 2348 pkt = req->ring_ptr; 2349 memset(pkt, 0, REQUEST_ENTRY_SIZE); 2350 if (IS_QLAFX00(ha)) { 2351 wrt_reg_byte((u8 __force __iomem *)&pkt->entry_count, req_cnt); 2352 wrt_reg_dword((__le32 __force __iomem *)&pkt->handle, handle); 2353 } else { 2354 pkt->entry_count = req_cnt; 2355 pkt->handle = handle; 2356 } 2357 2358 return pkt; 2359 2360queuing_error: 2361 qpair->tgt_counters.num_alloc_iocb_failed++; 2362 return pkt; 2363} 2364 2365void * 2366qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp) 2367{ 2368 scsi_qla_host_t *vha = qpair->vha; 2369 2370 if (qla2x00_reset_active(vha)) 2371 return NULL; 2372 2373 return __qla2x00_alloc_iocbs(qpair, sp); 2374} 2375 2376void * 2377qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp) 2378{ 2379 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp); 2380} 2381 2382static void 2383qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2384{ 2385 struct srb_iocb *lio = &sp->u.iocb_cmd; 2386 2387 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2388 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2389 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) { 2390 logio->control_flags |= cpu_to_le16(LCF_NVME_PRLI); 2391 if (sp->vha->flags.nvme_first_burst) 2392 logio->io_parameter[0] = 2393 cpu_to_le32(NVME_PRLI_SP_FIRST_BURST); 2394 if (sp->vha->flags.nvme2_enabled) { 2395 /* Set service parameter BIT_7 for NVME CONF support */ 2396 logio->io_parameter[0] |= 2397 cpu_to_le32(NVME_PRLI_SP_CONF); 2398 /* Set service parameter BIT_8 for SLER support */ 2399 logio->io_parameter[0] |= 2400 cpu_to_le32(NVME_PRLI_SP_SLER); 2401 /* Set service parameter BIT_9 for PI control support */ 2402 logio->io_parameter[0] |= 2403 cpu_to_le32(NVME_PRLI_SP_PI_CTRL); 2404 } 2405 } 2406 2407 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2408 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2409 logio->port_id[1] = sp->fcport->d_id.b.area; 2410 logio->port_id[2] = sp->fcport->d_id.b.domain; 2411 logio->vp_index = sp->vha->vp_idx; 2412} 2413 2414static void 2415qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2416{ 2417 struct srb_iocb *lio = &sp->u.iocb_cmd; 2418 2419 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2420 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2421 2422 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) { 2423 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI); 2424 } else { 2425 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); 2426 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) 2427 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); 2428 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) 2429 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); 2430 if (lio->u.logio.flags & SRB_LOGIN_FCSP) { 2431 logio->control_flags |= 2432 cpu_to_le16(LCF_COMMON_FEAT | LCF_SKIP_PRLI); 2433 logio->io_parameter[0] = 2434 cpu_to_le32(LIO_COMM_FEAT_FCSP | LIO_COMM_FEAT_CIO); 2435 } 2436 } 2437 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2438 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2439 logio->port_id[1] = sp->fcport->d_id.b.area; 2440 logio->port_id[2] = sp->fcport->d_id.b.domain; 2441 logio->vp_index = sp->vha->vp_idx; 2442} 2443 2444static void 2445qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) 2446{ 2447 struct qla_hw_data *ha = sp->vha->hw; 2448 struct srb_iocb *lio = &sp->u.iocb_cmd; 2449 uint16_t opts; 2450 2451 mbx->entry_type = MBX_IOCB_TYPE; 2452 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2453 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); 2454 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; 2455 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; 2456 if (HAS_EXTENDED_IDS(ha)) { 2457 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2458 mbx->mb10 = cpu_to_le16(opts); 2459 } else { 2460 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); 2461 } 2462 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2463 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2464 sp->fcport->d_id.b.al_pa); 2465 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2466} 2467 2468static void 2469qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2470{ 2471 u16 control_flags = LCF_COMMAND_LOGO; 2472 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2473 2474 if (sp->fcport->explicit_logout) { 2475 control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT; 2476 } else { 2477 control_flags |= LCF_IMPL_LOGO; 2478 2479 if (!sp->fcport->keep_nport_handle) 2480 control_flags |= LCF_FREE_NPORT; 2481 } 2482 2483 logio->control_flags = cpu_to_le16(control_flags); 2484 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2485 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 2486 logio->port_id[1] = sp->fcport->d_id.b.area; 2487 logio->port_id[2] = sp->fcport->d_id.b.domain; 2488 logio->vp_index = sp->vha->vp_idx; 2489} 2490 2491static void 2492qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) 2493{ 2494 struct qla_hw_data *ha = sp->vha->hw; 2495 2496 mbx->entry_type = MBX_IOCB_TYPE; 2497 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2498 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); 2499 mbx->mb1 = HAS_EXTENDED_IDS(ha) ? 2500 cpu_to_le16(sp->fcport->loop_id) : 2501 cpu_to_le16(sp->fcport->loop_id << 8); 2502 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); 2503 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | 2504 sp->fcport->d_id.b.al_pa); 2505 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2506 /* Implicit: mbx->mbx10 = 0. */ 2507} 2508 2509static void 2510qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) 2511{ 2512 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 2513 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); 2514 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2515 logio->vp_index = sp->vha->vp_idx; 2516} 2517 2518static void 2519qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) 2520{ 2521 struct qla_hw_data *ha = sp->vha->hw; 2522 2523 mbx->entry_type = MBX_IOCB_TYPE; 2524 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); 2525 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); 2526 if (HAS_EXTENDED_IDS(ha)) { 2527 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); 2528 mbx->mb10 = cpu_to_le16(BIT_0); 2529 } else { 2530 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); 2531 } 2532 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); 2533 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); 2534 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); 2535 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); 2536 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx); 2537} 2538 2539static void 2540qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) 2541{ 2542 uint32_t flags; 2543 uint64_t lun; 2544 struct fc_port *fcport = sp->fcport; 2545 scsi_qla_host_t *vha = fcport->vha; 2546 struct qla_hw_data *ha = vha->hw; 2547 struct srb_iocb *iocb = &sp->u.iocb_cmd; 2548 struct req_que *req = sp->qpair->req; 2549 2550 flags = iocb->u.tmf.flags; 2551 lun = iocb->u.tmf.lun; 2552 2553 tsk->entry_type = TSK_MGMT_IOCB_TYPE; 2554 tsk->entry_count = 1; 2555 tsk->handle = make_handle(req->id, tsk->handle); 2556 tsk->nport_handle = cpu_to_le16(fcport->loop_id); 2557 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); 2558 tsk->control_flags = cpu_to_le32(flags); 2559 tsk->port_id[0] = fcport->d_id.b.al_pa; 2560 tsk->port_id[1] = fcport->d_id.b.area; 2561 tsk->port_id[2] = fcport->d_id.b.domain; 2562 tsk->vp_index = fcport->vha->vp_idx; 2563 2564 if (flags & (TCF_LUN_RESET | TCF_ABORT_TASK_SET| 2565 TCF_CLEAR_TASK_SET|TCF_CLEAR_ACA)) { 2566 int_to_scsilun(lun, &tsk->lun); 2567 host_to_fcp_swap((uint8_t *)&tsk->lun, 2568 sizeof(tsk->lun)); 2569 } 2570} 2571 2572static void 2573qla2x00_async_done(struct srb *sp, int res) 2574{ 2575 if (del_timer(&sp->u.iocb_cmd.timer)) { 2576 /* 2577 * Successfully cancelled the timeout handler 2578 * ref: TMR 2579 */ 2580 if (kref_put(&sp->cmd_kref, qla2x00_sp_release)) 2581 return; 2582 } 2583 sp->async_done(sp, res); 2584} 2585 2586void 2587qla2x00_sp_release(struct kref *kref) 2588{ 2589 struct srb *sp = container_of(kref, struct srb, cmd_kref); 2590 2591 sp->free(sp); 2592} 2593 2594void 2595qla2x00_init_async_sp(srb_t *sp, unsigned long tmo, 2596 void (*done)(struct srb *sp, int res)) 2597{ 2598 timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0); 2599 sp->done = qla2x00_async_done; 2600 sp->async_done = done; 2601 sp->free = qla2x00_sp_free; 2602 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout; 2603 sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ; 2604 if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD) 2605 init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp); 2606 sp->start_timer = 1; 2607} 2608 2609static void qla2x00_els_dcmd_sp_free(srb_t *sp) 2610{ 2611 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2612 2613 kfree(sp->fcport); 2614 2615 if (elsio->u.els_logo.els_logo_pyld) 2616 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE, 2617 elsio->u.els_logo.els_logo_pyld, 2618 elsio->u.els_logo.els_logo_pyld_dma); 2619 2620 del_timer(&elsio->timer); 2621 qla2x00_rel_sp(sp); 2622} 2623 2624static void 2625qla2x00_els_dcmd_iocb_timeout(void *data) 2626{ 2627 srb_t *sp = data; 2628 fc_port_t *fcport = sp->fcport; 2629 struct scsi_qla_host *vha = sp->vha; 2630 struct srb_iocb *lio = &sp->u.iocb_cmd; 2631 unsigned long flags = 0; 2632 int res, h; 2633 2634 ql_dbg(ql_dbg_io, vha, 0x3069, 2635 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n", 2636 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, 2637 fcport->d_id.b.al_pa); 2638 2639 /* Abort the exchange */ 2640 res = qla24xx_async_abort_cmd(sp, false); 2641 if (res) { 2642 ql_dbg(ql_dbg_io, vha, 0x3070, 2643 "mbx abort_command failed.\n"); 2644 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); 2645 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { 2646 if (sp->qpair->req->outstanding_cmds[h] == sp) { 2647 sp->qpair->req->outstanding_cmds[h] = NULL; 2648 break; 2649 } 2650 } 2651 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); 2652 complete(&lio->u.els_logo.comp); 2653 } else { 2654 ql_dbg(ql_dbg_io, vha, 0x3071, 2655 "mbx abort_command success.\n"); 2656 } 2657} 2658 2659static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res) 2660{ 2661 fc_port_t *fcport = sp->fcport; 2662 struct srb_iocb *lio = &sp->u.iocb_cmd; 2663 struct scsi_qla_host *vha = sp->vha; 2664 2665 ql_dbg(ql_dbg_io, vha, 0x3072, 2666 "%s hdl=%x, portid=%02x%02x%02x done\n", 2667 sp->name, sp->handle, fcport->d_id.b.domain, 2668 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2669 2670 complete(&lio->u.els_logo.comp); 2671} 2672 2673int 2674qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode, 2675 port_id_t remote_did) 2676{ 2677 srb_t *sp; 2678 fc_port_t *fcport = NULL; 2679 struct srb_iocb *elsio = NULL; 2680 struct qla_hw_data *ha = vha->hw; 2681 struct els_logo_payload logo_pyld; 2682 int rval = QLA_SUCCESS; 2683 2684 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL); 2685 if (!fcport) { 2686 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n"); 2687 return -ENOMEM; 2688 } 2689 2690 /* Alloc SRB structure 2691 * ref: INIT 2692 */ 2693 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 2694 if (!sp) { 2695 kfree(fcport); 2696 ql_log(ql_log_info, vha, 0x70e6, 2697 "SRB allocation failed\n"); 2698 return -ENOMEM; 2699 } 2700 2701 elsio = &sp->u.iocb_cmd; 2702 fcport->loop_id = 0xFFFF; 2703 fcport->d_id.b.domain = remote_did.b.domain; 2704 fcport->d_id.b.area = remote_did.b.area; 2705 fcport->d_id.b.al_pa = remote_did.b.al_pa; 2706 2707 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n", 2708 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa); 2709 2710 sp->type = SRB_ELS_DCMD; 2711 sp->name = "ELS_DCMD"; 2712 sp->fcport = fcport; 2713 qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT, 2714 qla2x00_els_dcmd_sp_done); 2715 sp->free = qla2x00_els_dcmd_sp_free; 2716 sp->u.iocb_cmd.timeout = qla2x00_els_dcmd_iocb_timeout; 2717 init_completion(&sp->u.iocb_cmd.u.els_logo.comp); 2718 2719 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev, 2720 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma, 2721 GFP_KERNEL); 2722 2723 if (!elsio->u.els_logo.els_logo_pyld) { 2724 /* ref: INIT */ 2725 kref_put(&sp->cmd_kref, qla2x00_sp_release); 2726 return QLA_FUNCTION_FAILED; 2727 } 2728 2729 memset(&logo_pyld, 0, sizeof(struct els_logo_payload)); 2730 2731 elsio->u.els_logo.els_cmd = els_opcode; 2732 logo_pyld.opcode = els_opcode; 2733 logo_pyld.s_id[0] = vha->d_id.b.al_pa; 2734 logo_pyld.s_id[1] = vha->d_id.b.area; 2735 logo_pyld.s_id[2] = vha->d_id.b.domain; 2736 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t)); 2737 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE); 2738 2739 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld, 2740 sizeof(struct els_logo_payload)); 2741 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:"); 2742 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a, 2743 elsio->u.els_logo.els_logo_pyld, 2744 sizeof(*elsio->u.els_logo.els_logo_pyld)); 2745 2746 rval = qla2x00_start_sp(sp); 2747 if (rval != QLA_SUCCESS) { 2748 /* ref: INIT */ 2749 kref_put(&sp->cmd_kref, qla2x00_sp_release); 2750 return QLA_FUNCTION_FAILED; 2751 } 2752 2753 ql_dbg(ql_dbg_io, vha, 0x3074, 2754 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n", 2755 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain, 2756 fcport->d_id.b.area, fcport->d_id.b.al_pa); 2757 2758 wait_for_completion(&elsio->u.els_logo.comp); 2759 2760 /* ref: INIT */ 2761 kref_put(&sp->cmd_kref, qla2x00_sp_release); 2762 return rval; 2763} 2764 2765static void 2766qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 2767{ 2768 scsi_qla_host_t *vha = sp->vha; 2769 struct srb_iocb *elsio = &sp->u.iocb_cmd; 2770 2771 els_iocb->entry_type = ELS_IOCB_TYPE; 2772 els_iocb->entry_count = 1; 2773 els_iocb->sys_define = 0; 2774 els_iocb->entry_status = 0; 2775 els_iocb->handle = sp->handle; 2776 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 2777 els_iocb->tx_dsd_count = cpu_to_le16(1); 2778 els_iocb->vp_index = vha->vp_idx; 2779 els_iocb->sof_type = EST_SOFI3; 2780 els_iocb->rx_dsd_count = 0; 2781 els_iocb->opcode = elsio->u.els_logo.els_cmd; 2782 2783 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; 2784 els_iocb->d_id[1] = sp->fcport->d_id.b.area; 2785 els_iocb->d_id[2] = sp->fcport->d_id.b.domain; 2786 /* For SID the byte order is different than DID */ 2787 els_iocb->s_id[1] = vha->d_id.b.al_pa; 2788 els_iocb->s_id[2] = vha->d_id.b.area; 2789 els_iocb->s_id[0] = vha->d_id.b.domain; 2790 2791 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) { 2792 if (vha->hw->flags.edif_enabled) 2793 els_iocb->control_flags = cpu_to_le16(ECF_SEC_LOGIN); 2794 else 2795 els_iocb->control_flags = 0; 2796 els_iocb->tx_byte_count = els_iocb->tx_len = 2797 cpu_to_le32(sizeof(struct els_plogi_payload)); 2798 put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma, 2799 &els_iocb->tx_address); 2800 els_iocb->rx_dsd_count = cpu_to_le16(1); 2801 els_iocb->rx_byte_count = els_iocb->rx_len = 2802 cpu_to_le32(sizeof(struct els_plogi_payload)); 2803 put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma, 2804 &els_iocb->rx_address); 2805 2806 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073, 2807 "PLOGI ELS IOCB:\n"); 2808 ql_dump_buffer(ql_log_info, vha, 0x0109, 2809 (uint8_t *)els_iocb, 2810 sizeof(*els_iocb)); 2811 } else { 2812 els_iocb->tx_byte_count = 2813 cpu_to_le32(sizeof(struct els_logo_payload)); 2814 put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma, 2815 &els_iocb->tx_address); 2816 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload)); 2817 2818 els_iocb->rx_byte_count = 0; 2819 els_iocb->rx_address = 0; 2820 els_iocb->rx_len = 0; 2821 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076, 2822 "LOGO ELS IOCB:"); 2823 ql_dump_buffer(ql_log_info, vha, 0x010b, 2824 els_iocb, 2825 sizeof(*els_iocb)); 2826 } 2827 2828 sp->vha->qla_stats.control_requests++; 2829} 2830 2831void 2832qla2x00_els_dcmd2_iocb_timeout(void *data) 2833{ 2834 srb_t *sp = data; 2835 fc_port_t *fcport = sp->fcport; 2836 struct scsi_qla_host *vha = sp->vha; 2837 unsigned long flags = 0; 2838 int res, h; 2839 2840 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069, 2841 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n", 2842 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24); 2843 2844 /* Abort the exchange */ 2845 res = qla24xx_async_abort_cmd(sp, false); 2846 ql_dbg(ql_dbg_io, vha, 0x3070, 2847 "mbx abort_command %s\n", 2848 (res == QLA_SUCCESS) ? "successful" : "failed"); 2849 if (res) { 2850 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags); 2851 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) { 2852 if (sp->qpair->req->outstanding_cmds[h] == sp) { 2853 sp->qpair->req->outstanding_cmds[h] = NULL; 2854 break; 2855 } 2856 } 2857 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags); 2858 sp->done(sp, QLA_FUNCTION_TIMEOUT); 2859 } 2860} 2861 2862void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi) 2863{ 2864 if (els_plogi->els_plogi_pyld) 2865 dma_free_coherent(&vha->hw->pdev->dev, 2866 els_plogi->tx_size, 2867 els_plogi->els_plogi_pyld, 2868 els_plogi->els_plogi_pyld_dma); 2869 2870 if (els_plogi->els_resp_pyld) 2871 dma_free_coherent(&vha->hw->pdev->dev, 2872 els_plogi->rx_size, 2873 els_plogi->els_resp_pyld, 2874 els_plogi->els_resp_pyld_dma); 2875} 2876 2877static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res) 2878{ 2879 fc_port_t *fcport = sp->fcport; 2880 struct srb_iocb *lio = &sp->u.iocb_cmd; 2881 struct scsi_qla_host *vha = sp->vha; 2882 struct event_arg ea; 2883 struct qla_work_evt *e; 2884 struct fc_port *conflict_fcport; 2885 port_id_t cid; /* conflict Nport id */ 2886 const __le32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status; 2887 u16 lid; 2888 2889 ql_dbg(ql_dbg_disc, vha, 0x3072, 2890 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n", 2891 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name); 2892 2893 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE); 2894 /* For edif, set logout on delete to ensure any residual key from FW is flushed.*/ 2895 fcport->logout_on_delete = 1; 2896 fcport->chip_reset = vha->hw->base_qpair->chip_reset; 2897 2898 if (sp->flags & SRB_WAKEUP_ON_COMP) 2899 complete(&lio->u.els_plogi.comp); 2900 else { 2901 switch (le32_to_cpu(fw_status[0])) { 2902 case CS_DATA_UNDERRUN: 2903 case CS_COMPLETE: 2904 memset(&ea, 0, sizeof(ea)); 2905 ea.fcport = fcport; 2906 ea.rc = res; 2907 qla_handle_els_plogi_done(vha, &ea); 2908 break; 2909 2910 case CS_IOCB_ERROR: 2911 switch (le32_to_cpu(fw_status[1])) { 2912 case LSC_SCODE_PORTID_USED: 2913 lid = le32_to_cpu(fw_status[2]) & 0xffff; 2914 qlt_find_sess_invalidate_other(vha, 2915 wwn_to_u64(fcport->port_name), 2916 fcport->d_id, lid, &conflict_fcport); 2917 if (conflict_fcport) { 2918 /* 2919 * Another fcport shares the same 2920 * loop_id & nport id; conflict 2921 * fcport needs to finish cleanup 2922 * before this fcport can proceed 2923 * to login. 2924 */ 2925 conflict_fcport->conflict = fcport; 2926 fcport->login_pause = 1; 2927 ql_dbg(ql_dbg_disc, vha, 0x20ed, 2928 "%s %d %8phC pid %06x inuse with lid %#x.\n", 2929 __func__, __LINE__, 2930 fcport->port_name, 2931 fcport->d_id.b24, lid); 2932 } else { 2933 ql_dbg(ql_dbg_disc, vha, 0x20ed, 2934 "%s %d %8phC pid %06x inuse with lid %#x sched del\n", 2935 __func__, __LINE__, 2936 fcport->port_name, 2937 fcport->d_id.b24, lid); 2938 qla2x00_clear_loop_id(fcport); 2939 set_bit(lid, vha->hw->loop_id_map); 2940 fcport->loop_id = lid; 2941 fcport->keep_nport_handle = 0; 2942 qlt_schedule_sess_for_deletion(fcport); 2943 } 2944 break; 2945 2946 case LSC_SCODE_NPORT_USED: 2947 cid.b.domain = (le32_to_cpu(fw_status[2]) >> 16) 2948 & 0xff; 2949 cid.b.area = (le32_to_cpu(fw_status[2]) >> 8) 2950 & 0xff; 2951 cid.b.al_pa = le32_to_cpu(fw_status[2]) & 0xff; 2952 cid.b.rsvd_1 = 0; 2953 2954 ql_dbg(ql_dbg_disc, vha, 0x20ec, 2955 "%s %d %8phC lid %#x in use with pid %06x post gnl\n", 2956 __func__, __LINE__, fcport->port_name, 2957 fcport->loop_id, cid.b24); 2958 set_bit(fcport->loop_id, 2959 vha->hw->loop_id_map); 2960 fcport->loop_id = FC_NO_LOOP_ID; 2961 qla24xx_post_gnl_work(vha, fcport); 2962 break; 2963 2964 case LSC_SCODE_NOXCB: 2965 vha->hw->exch_starvation++; 2966 if (vha->hw->exch_starvation > 5) { 2967 ql_log(ql_log_warn, vha, 0xd046, 2968 "Exchange starvation. Resetting RISC\n"); 2969 vha->hw->exch_starvation = 0; 2970 set_bit(ISP_ABORT_NEEDED, 2971 &vha->dpc_flags); 2972 qla2xxx_wake_dpc(vha); 2973 break; 2974 } 2975 fallthrough; 2976 default: 2977 ql_dbg(ql_dbg_disc, vha, 0x20eb, 2978 "%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n", 2979 __func__, sp->fcport->port_name, 2980 fw_status[0], fw_status[1], fw_status[2]); 2981 2982 fcport->flags &= ~FCF_ASYNC_SENT; 2983 qlt_schedule_sess_for_deletion(fcport); 2984 break; 2985 } 2986 break; 2987 2988 default: 2989 ql_dbg(ql_dbg_disc, vha, 0x20eb, 2990 "%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n", 2991 __func__, sp->fcport->port_name, 2992 fw_status[0], fw_status[1], fw_status[2]); 2993 2994 sp->fcport->flags &= ~FCF_ASYNC_SENT; 2995 qlt_schedule_sess_for_deletion(fcport); 2996 break; 2997 } 2998 2999 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP); 3000 if (!e) { 3001 struct srb_iocb *elsio = &sp->u.iocb_cmd; 3002 3003 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); 3004 /* ref: INIT */ 3005 kref_put(&sp->cmd_kref, qla2x00_sp_release); 3006 return; 3007 } 3008 e->u.iosb.sp = sp; 3009 qla2x00_post_work(vha, e); 3010 } 3011} 3012 3013int 3014qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, 3015 fc_port_t *fcport, bool wait) 3016{ 3017 srb_t *sp; 3018 struct srb_iocb *elsio = NULL; 3019 struct qla_hw_data *ha = vha->hw; 3020 int rval = QLA_SUCCESS; 3021 void *ptr, *resp_ptr; 3022 3023 /* Alloc SRB structure 3024 * ref: INIT 3025 */ 3026 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL); 3027 if (!sp) { 3028 ql_log(ql_log_info, vha, 0x70e6, 3029 "SRB allocation failed\n"); 3030 fcport->flags &= ~FCF_ASYNC_ACTIVE; 3031 return -ENOMEM; 3032 } 3033 3034 fcport->flags |= FCF_ASYNC_SENT; 3035 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND); 3036 elsio = &sp->u.iocb_cmd; 3037 ql_dbg(ql_dbg_io, vha, 0x3073, 3038 "%s Enter: PLOGI portid=%06x\n", __func__, fcport->d_id.b24); 3039 3040 if (wait) 3041 sp->flags = SRB_WAKEUP_ON_COMP; 3042 3043 sp->type = SRB_ELS_DCMD; 3044 sp->name = "ELS_DCMD"; 3045 sp->fcport = fcport; 3046 qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT + 2, 3047 qla2x00_els_dcmd2_sp_done); 3048 sp->u.iocb_cmd.timeout = qla2x00_els_dcmd2_iocb_timeout; 3049 3050 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE; 3051 3052 ptr = elsio->u.els_plogi.els_plogi_pyld = 3053 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size, 3054 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL); 3055 3056 if (!elsio->u.els_plogi.els_plogi_pyld) { 3057 rval = QLA_FUNCTION_FAILED; 3058 goto out; 3059 } 3060 3061 resp_ptr = elsio->u.els_plogi.els_resp_pyld = 3062 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size, 3063 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL); 3064 3065 if (!elsio->u.els_plogi.els_resp_pyld) { 3066 rval = QLA_FUNCTION_FAILED; 3067 goto out; 3068 } 3069 3070 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr); 3071 3072 memset(ptr, 0, sizeof(struct els_plogi_payload)); 3073 memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); 3074 memcpy(elsio->u.els_plogi.els_plogi_pyld->data, 3075 (void *)&ha->plogi_els_payld + offsetof(struct fc_els_flogi, fl_csp), 3076 sizeof(ha->plogi_els_payld) - offsetof(struct fc_els_flogi, fl_csp)); 3077 3078 elsio->u.els_plogi.els_cmd = els_opcode; 3079 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; 3080 3081 if (els_opcode == ELS_DCMD_PLOGI && DBELL_ACTIVE(vha)) { 3082 struct fc_els_flogi *p = ptr; 3083 3084 p->fl_csp.sp_features |= cpu_to_be16(FC_SP_FT_SEC); 3085 } 3086 3087 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n"); 3088 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109, 3089 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld, 3090 sizeof(*elsio->u.els_plogi.els_plogi_pyld)); 3091 3092 init_completion(&elsio->u.els_plogi.comp); 3093 rval = qla2x00_start_sp(sp); 3094 if (rval != QLA_SUCCESS) { 3095 rval = QLA_FUNCTION_FAILED; 3096 } else { 3097 ql_dbg(ql_dbg_disc, vha, 0x3074, 3098 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n", 3099 sp->name, sp->handle, fcport->loop_id, 3100 fcport->d_id.b24, vha->d_id.b24); 3101 } 3102 3103 if (wait) { 3104 wait_for_completion(&elsio->u.els_plogi.comp); 3105 3106 if (elsio->u.els_plogi.comp_status != CS_COMPLETE) 3107 rval = QLA_FUNCTION_FAILED; 3108 } else { 3109 goto done; 3110 } 3111 3112out: 3113 fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE); 3114 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi); 3115 /* ref: INIT */ 3116 kref_put(&sp->cmd_kref, qla2x00_sp_release); 3117done: 3118 return rval; 3119} 3120 3121/* it is assume qpair lock is held */ 3122void qla_els_pt_iocb(struct scsi_qla_host *vha, 3123 struct els_entry_24xx *els_iocb, 3124 struct qla_els_pt_arg *a) 3125{ 3126 els_iocb->entry_type = ELS_IOCB_TYPE; 3127 els_iocb->entry_count = 1; 3128 els_iocb->sys_define = 0; 3129 els_iocb->entry_status = 0; 3130 els_iocb->handle = QLA_SKIP_HANDLE; 3131 els_iocb->nport_handle = a->nport_handle; 3132 els_iocb->rx_xchg_address = a->rx_xchg_address; 3133 els_iocb->tx_dsd_count = cpu_to_le16(1); 3134 els_iocb->vp_index = a->vp_idx; 3135 els_iocb->sof_type = EST_SOFI3; 3136 els_iocb->rx_dsd_count = cpu_to_le16(0); 3137 els_iocb->opcode = a->els_opcode; 3138 3139 els_iocb->d_id[0] = a->did.b.al_pa; 3140 els_iocb->d_id[1] = a->did.b.area; 3141 els_iocb->d_id[2] = a->did.b.domain; 3142 /* For SID the byte order is different than DID */ 3143 els_iocb->s_id[1] = vha->d_id.b.al_pa; 3144 els_iocb->s_id[2] = vha->d_id.b.area; 3145 els_iocb->s_id[0] = vha->d_id.b.domain; 3146 3147 els_iocb->control_flags = cpu_to_le16(a->control_flags); 3148 3149 els_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count); 3150 els_iocb->tx_len = cpu_to_le32(a->tx_len); 3151 put_unaligned_le64(a->tx_addr, &els_iocb->tx_address); 3152 3153 els_iocb->rx_byte_count = cpu_to_le32(a->rx_byte_count); 3154 els_iocb->rx_len = cpu_to_le32(a->rx_len); 3155 put_unaligned_le64(a->rx_addr, &els_iocb->rx_address); 3156} 3157 3158static void 3159qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) 3160{ 3161 struct bsg_job *bsg_job = sp->u.bsg_job; 3162 struct fc_bsg_request *bsg_request = bsg_job->request; 3163 3164 els_iocb->entry_type = ELS_IOCB_TYPE; 3165 els_iocb->entry_count = 1; 3166 els_iocb->sys_define = 0; 3167 els_iocb->entry_status = 0; 3168 els_iocb->handle = sp->handle; 3169 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3170 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 3171 els_iocb->vp_index = sp->vha->vp_idx; 3172 els_iocb->sof_type = EST_SOFI3; 3173 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 3174 3175 els_iocb->opcode = 3176 sp->type == SRB_ELS_CMD_RPT ? 3177 bsg_request->rqst_data.r_els.els_code : 3178 bsg_request->rqst_data.h_els.command_code; 3179 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa; 3180 els_iocb->d_id[1] = sp->fcport->d_id.b.area; 3181 els_iocb->d_id[2] = sp->fcport->d_id.b.domain; 3182 els_iocb->control_flags = 0; 3183 els_iocb->rx_byte_count = 3184 cpu_to_le32(bsg_job->reply_payload.payload_len); 3185 els_iocb->tx_byte_count = 3186 cpu_to_le32(bsg_job->request_payload.payload_len); 3187 3188 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), 3189 &els_iocb->tx_address); 3190 els_iocb->tx_len = cpu_to_le32(sg_dma_len 3191 (bsg_job->request_payload.sg_list)); 3192 3193 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), 3194 &els_iocb->rx_address); 3195 els_iocb->rx_len = cpu_to_le32(sg_dma_len 3196 (bsg_job->reply_payload.sg_list)); 3197 3198 sp->vha->qla_stats.control_requests++; 3199} 3200 3201static void 3202qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) 3203{ 3204 uint16_t avail_dsds; 3205 struct dsd64 *cur_dsd; 3206 struct scatterlist *sg; 3207 int index; 3208 uint16_t tot_dsds; 3209 scsi_qla_host_t *vha = sp->vha; 3210 struct qla_hw_data *ha = vha->hw; 3211 struct bsg_job *bsg_job = sp->u.bsg_job; 3212 int entry_count = 1; 3213 3214 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); 3215 ct_iocb->entry_type = CT_IOCB_TYPE; 3216 ct_iocb->entry_status = 0; 3217 ct_iocb->handle1 = sp->handle; 3218 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); 3219 ct_iocb->status = cpu_to_le16(0); 3220 ct_iocb->control_flags = cpu_to_le16(0); 3221 ct_iocb->timeout = 0; 3222 ct_iocb->cmd_dsd_count = 3223 cpu_to_le16(bsg_job->request_payload.sg_cnt); 3224 ct_iocb->total_dsd_count = 3225 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); 3226 ct_iocb->req_bytecount = 3227 cpu_to_le32(bsg_job->request_payload.payload_len); 3228 ct_iocb->rsp_bytecount = 3229 cpu_to_le32(bsg_job->reply_payload.payload_len); 3230 3231 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list), 3232 &ct_iocb->req_dsd.address); 3233 ct_iocb->req_dsd.length = ct_iocb->req_bytecount; 3234 3235 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list), 3236 &ct_iocb->rsp_dsd.address); 3237 ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount; 3238 3239 avail_dsds = 1; 3240 cur_dsd = &ct_iocb->rsp_dsd; 3241 index = 0; 3242 tot_dsds = bsg_job->reply_payload.sg_cnt; 3243 3244 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { 3245 cont_a64_entry_t *cont_pkt; 3246 3247 /* Allocate additional continuation packets? */ 3248 if (avail_dsds == 0) { 3249 /* 3250 * Five DSDs are available in the Cont. 3251 * Type 1 IOCB. 3252 */ 3253 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 3254 vha->hw->req_q_map[0]); 3255 cur_dsd = cont_pkt->dsd; 3256 avail_dsds = 5; 3257 entry_count++; 3258 } 3259 3260 append_dsd64(&cur_dsd, sg); 3261 avail_dsds--; 3262 } 3263 ct_iocb->entry_count = entry_count; 3264 3265 sp->vha->qla_stats.control_requests++; 3266} 3267 3268static void 3269qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) 3270{ 3271 uint16_t avail_dsds; 3272 struct dsd64 *cur_dsd; 3273 struct scatterlist *sg; 3274 int index; 3275 uint16_t cmd_dsds, rsp_dsds; 3276 scsi_qla_host_t *vha = sp->vha; 3277 struct qla_hw_data *ha = vha->hw; 3278 struct bsg_job *bsg_job = sp->u.bsg_job; 3279 int entry_count = 1; 3280 cont_a64_entry_t *cont_pkt = NULL; 3281 3282 ct_iocb->entry_type = CT_IOCB_TYPE; 3283 ct_iocb->entry_status = 0; 3284 ct_iocb->sys_define = 0; 3285 ct_iocb->handle = sp->handle; 3286 3287 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3288 ct_iocb->vp_index = sp->vha->vp_idx; 3289 ct_iocb->comp_status = cpu_to_le16(0); 3290 3291 cmd_dsds = bsg_job->request_payload.sg_cnt; 3292 rsp_dsds = bsg_job->reply_payload.sg_cnt; 3293 3294 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds); 3295 ct_iocb->timeout = 0; 3296 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds); 3297 ct_iocb->cmd_byte_count = 3298 cpu_to_le32(bsg_job->request_payload.payload_len); 3299 3300 avail_dsds = 2; 3301 cur_dsd = ct_iocb->dsd; 3302 index = 0; 3303 3304 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) { 3305 /* Allocate additional continuation packets? */ 3306 if (avail_dsds == 0) { 3307 /* 3308 * Five DSDs are available in the Cont. 3309 * Type 1 IOCB. 3310 */ 3311 cont_pkt = qla2x00_prep_cont_type1_iocb( 3312 vha, ha->req_q_map[0]); 3313 cur_dsd = cont_pkt->dsd; 3314 avail_dsds = 5; 3315 entry_count++; 3316 } 3317 3318 append_dsd64(&cur_dsd, sg); 3319 avail_dsds--; 3320 } 3321 3322 index = 0; 3323 3324 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) { 3325 /* Allocate additional continuation packets? */ 3326 if (avail_dsds == 0) { 3327 /* 3328 * Five DSDs are available in the Cont. 3329 * Type 1 IOCB. 3330 */ 3331 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, 3332 ha->req_q_map[0]); 3333 cur_dsd = cont_pkt->dsd; 3334 avail_dsds = 5; 3335 entry_count++; 3336 } 3337 3338 append_dsd64(&cur_dsd, sg); 3339 avail_dsds--; 3340 } 3341 ct_iocb->entry_count = entry_count; 3342} 3343 3344/* 3345 * qla82xx_start_scsi() - Send a SCSI command to the ISP 3346 * @sp: command to send to the ISP 3347 * 3348 * Returns non-zero if a failure occurred, else zero. 3349 */ 3350int 3351qla82xx_start_scsi(srb_t *sp) 3352{ 3353 int nseg; 3354 unsigned long flags; 3355 struct scsi_cmnd *cmd; 3356 uint32_t *clr_ptr; 3357 uint32_t handle; 3358 uint16_t cnt; 3359 uint16_t req_cnt; 3360 uint16_t tot_dsds; 3361 struct device_reg_82xx __iomem *reg; 3362 uint32_t dbval; 3363 __be32 *fcp_dl; 3364 uint8_t additional_cdb_len; 3365 struct ct6_dsd *ctx; 3366 struct scsi_qla_host *vha = sp->vha; 3367 struct qla_hw_data *ha = vha->hw; 3368 struct req_que *req = NULL; 3369 struct rsp_que *rsp = NULL; 3370 struct qla_qpair *qpair = sp->qpair; 3371 3372 /* Setup device pointers. */ 3373 reg = &ha->iobase->isp82; 3374 cmd = GET_CMD_SP(sp); 3375 req = vha->req; 3376 rsp = ha->rsp_q_map[0]; 3377 3378 /* So we know we haven't pci_map'ed anything yet */ 3379 tot_dsds = 0; 3380 3381 dbval = 0x04 | (ha->portnum << 5); 3382 3383 /* Send marker if required */ 3384 if (vha->marker_needed != 0) { 3385 if (qla2x00_marker(vha, ha->base_qpair, 3386 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { 3387 ql_log(ql_log_warn, vha, 0x300c, 3388 "qla2x00_marker failed for cmd=%p.\n", cmd); 3389 return QLA_FUNCTION_FAILED; 3390 } 3391 vha->marker_needed = 0; 3392 } 3393 3394 /* Acquire ring specific lock */ 3395 spin_lock_irqsave(&ha->hardware_lock, flags); 3396 3397 handle = qla2xxx_get_next_handle(req); 3398 if (handle == 0) 3399 goto queuing_error; 3400 3401 /* Map the sg table so we have an accurate count of sg entries needed */ 3402 if (scsi_sg_count(cmd)) { 3403 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 3404 scsi_sg_count(cmd), cmd->sc_data_direction); 3405 if (unlikely(!nseg)) 3406 goto queuing_error; 3407 } else 3408 nseg = 0; 3409 3410 tot_dsds = nseg; 3411 3412 if (tot_dsds > ql2xshiftctondsd) { 3413 struct cmd_type_6 *cmd_pkt; 3414 uint16_t more_dsd_lists = 0; 3415 struct dsd_dma *dsd_ptr; 3416 uint16_t i; 3417 3418 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); 3419 if ((more_dsd_lists + qpair->dsd_inuse) >= NUM_DSD_CHAIN) { 3420 ql_dbg(ql_dbg_io, vha, 0x300d, 3421 "Num of DSD list %d is than %d for cmd=%p.\n", 3422 more_dsd_lists + qpair->dsd_inuse, NUM_DSD_CHAIN, 3423 cmd); 3424 goto queuing_error; 3425 } 3426 3427 if (more_dsd_lists <= qpair->dsd_avail) 3428 goto sufficient_dsds; 3429 else 3430 more_dsd_lists -= qpair->dsd_avail; 3431 3432 for (i = 0; i < more_dsd_lists; i++) { 3433 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); 3434 if (!dsd_ptr) { 3435 ql_log(ql_log_fatal, vha, 0x300e, 3436 "Failed to allocate memory for dsd_dma " 3437 "for cmd=%p.\n", cmd); 3438 goto queuing_error; 3439 } 3440 3441 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, 3442 GFP_ATOMIC, &dsd_ptr->dsd_list_dma); 3443 if (!dsd_ptr->dsd_addr) { 3444 kfree(dsd_ptr); 3445 ql_log(ql_log_fatal, vha, 0x300f, 3446 "Failed to allocate memory for dsd_addr " 3447 "for cmd=%p.\n", cmd); 3448 goto queuing_error; 3449 } 3450 list_add_tail(&dsd_ptr->list, &qpair->dsd_list); 3451 qpair->dsd_avail++; 3452 } 3453 3454sufficient_dsds: 3455 req_cnt = 1; 3456 3457 if (req->cnt < (req_cnt + 2)) { 3458 cnt = (uint16_t)rd_reg_dword_relaxed( 3459 ®->req_q_out[0]); 3460 if (req->ring_index < cnt) 3461 req->cnt = cnt - req->ring_index; 3462 else 3463 req->cnt = req->length - 3464 (req->ring_index - cnt); 3465 if (req->cnt < (req_cnt + 2)) 3466 goto queuing_error; 3467 } 3468 3469 ctx = &sp->u.scmd.ct6_ctx; 3470 3471 memset(ctx, 0, sizeof(struct ct6_dsd)); 3472 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, 3473 GFP_ATOMIC, &ctx->fcp_cmnd_dma); 3474 if (!ctx->fcp_cmnd) { 3475 ql_log(ql_log_fatal, vha, 0x3011, 3476 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); 3477 goto queuing_error; 3478 } 3479 3480 /* Initialize the DSD list and dma handle */ 3481 INIT_LIST_HEAD(&ctx->dsd_list); 3482 ctx->dsd_use_cnt = 0; 3483 3484 if (cmd->cmd_len > 16) { 3485 additional_cdb_len = cmd->cmd_len - 16; 3486 if ((cmd->cmd_len % 4) != 0) { 3487 /* SCSI command bigger than 16 bytes must be 3488 * multiple of 4 3489 */ 3490 ql_log(ql_log_warn, vha, 0x3012, 3491 "scsi cmd len %d not multiple of 4 " 3492 "for cmd=%p.\n", cmd->cmd_len, cmd); 3493 goto queuing_error_fcp_cmnd; 3494 } 3495 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; 3496 } else { 3497 additional_cdb_len = 0; 3498 ctx->fcp_cmnd_len = 12 + 16 + 4; 3499 } 3500 3501 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; 3502 cmd_pkt->handle = make_handle(req->id, handle); 3503 3504 /* Zero out remaining portion of packet. */ 3505 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 3506 clr_ptr = (uint32_t *)cmd_pkt + 2; 3507 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3508 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3509 3510 /* Set NPORT-ID and LUN number*/ 3511 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3512 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3513 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3514 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3515 cmd_pkt->vp_index = sp->vha->vp_idx; 3516 3517 /* Build IOCB segments */ 3518 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) 3519 goto queuing_error_fcp_cmnd; 3520 3521 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3522 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 3523 3524 /* build FCP_CMND IU */ 3525 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); 3526 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; 3527 3528 if (cmd->sc_data_direction == DMA_TO_DEVICE) 3529 ctx->fcp_cmnd->additional_cdb_len |= 1; 3530 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 3531 ctx->fcp_cmnd->additional_cdb_len |= 2; 3532 3533 /* Populate the FCP_PRIO. */ 3534 if (ha->flags.fcp_prio_enabled) 3535 ctx->fcp_cmnd->task_attribute |= 3536 sp->fcport->fcp_prio << 3; 3537 3538 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 3539 3540 fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 + 3541 additional_cdb_len); 3542 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); 3543 3544 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); 3545 put_unaligned_le64(ctx->fcp_cmnd_dma, 3546 &cmd_pkt->fcp_cmnd_dseg_address); 3547 3548 sp->flags |= SRB_FCP_CMND_DMA_VALID; 3549 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3550 /* Set total data segment count. */ 3551 cmd_pkt->entry_count = (uint8_t)req_cnt; 3552 /* Specify response queue number where 3553 * completion should happen 3554 */ 3555 cmd_pkt->entry_status = (uint8_t) rsp->id; 3556 } else { 3557 struct cmd_type_7 *cmd_pkt; 3558 3559 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 3560 if (req->cnt < (req_cnt + 2)) { 3561 cnt = (uint16_t)rd_reg_dword_relaxed( 3562 ®->req_q_out[0]); 3563 if (req->ring_index < cnt) 3564 req->cnt = cnt - req->ring_index; 3565 else 3566 req->cnt = req->length - 3567 (req->ring_index - cnt); 3568 } 3569 if (req->cnt < (req_cnt + 2)) 3570 goto queuing_error; 3571 3572 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; 3573 cmd_pkt->handle = make_handle(req->id, handle); 3574 3575 /* Zero out remaining portion of packet. */ 3576 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 3577 clr_ptr = (uint32_t *)cmd_pkt + 2; 3578 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 3579 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 3580 3581 /* Set NPORT-ID and LUN number*/ 3582 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3583 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 3584 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 3585 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 3586 cmd_pkt->vp_index = sp->vha->vp_idx; 3587 3588 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 3589 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, 3590 sizeof(cmd_pkt->lun)); 3591 3592 /* Populate the FCP_PRIO. */ 3593 if (ha->flags.fcp_prio_enabled) 3594 cmd_pkt->task |= sp->fcport->fcp_prio << 3; 3595 3596 /* Load SCSI command packet. */ 3597 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); 3598 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); 3599 3600 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 3601 3602 /* Build IOCB segments */ 3603 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req); 3604 3605 /* Set total data segment count. */ 3606 cmd_pkt->entry_count = (uint8_t)req_cnt; 3607 /* Specify response queue number where 3608 * completion should happen. 3609 */ 3610 cmd_pkt->entry_status = (uint8_t) rsp->id; 3611 3612 } 3613 /* Build command packet. */ 3614 req->current_outstanding_cmd = handle; 3615 req->outstanding_cmds[handle] = sp; 3616 sp->handle = handle; 3617 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 3618 req->cnt -= req_cnt; 3619 wmb(); 3620 3621 /* Adjust ring index. */ 3622 req->ring_index++; 3623 if (req->ring_index == req->length) { 3624 req->ring_index = 0; 3625 req->ring_ptr = req->ring; 3626 } else 3627 req->ring_ptr++; 3628 3629 sp->flags |= SRB_DMA_VALID; 3630 3631 /* Set chip new ring index. */ 3632 /* write, read and verify logic */ 3633 dbval = dbval | (req->id << 8) | (req->ring_index << 16); 3634 if (ql2xdbwr) 3635 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval); 3636 else { 3637 wrt_reg_dword(ha->nxdb_wr_ptr, dbval); 3638 wmb(); 3639 while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) { 3640 wrt_reg_dword(ha->nxdb_wr_ptr, dbval); 3641 wmb(); 3642 } 3643 } 3644 3645 /* Manage unprocessed RIO/ZIO commands in response queue. */ 3646 if (vha->flags.process_response_queue && 3647 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 3648 qla24xx_process_response_queue(vha, rsp); 3649 3650 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3651 return QLA_SUCCESS; 3652 3653queuing_error_fcp_cmnd: 3654 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); 3655queuing_error: 3656 if (tot_dsds) 3657 scsi_dma_unmap(cmd); 3658 3659 if (sp->u.scmd.crc_ctx) { 3660 mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool); 3661 sp->u.scmd.crc_ctx = NULL; 3662 } 3663 spin_unlock_irqrestore(&ha->hardware_lock, flags); 3664 3665 return QLA_FUNCTION_FAILED; 3666} 3667 3668static void 3669qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) 3670{ 3671 struct srb_iocb *aio = &sp->u.iocb_cmd; 3672 scsi_qla_host_t *vha = sp->vha; 3673 struct req_que *req = sp->qpair->req; 3674 srb_t *orig_sp = sp->cmd_sp; 3675 3676 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); 3677 abt_iocb->entry_type = ABORT_IOCB_TYPE; 3678 abt_iocb->entry_count = 1; 3679 abt_iocb->handle = make_handle(req->id, sp->handle); 3680 if (sp->fcport) { 3681 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3682 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; 3683 abt_iocb->port_id[1] = sp->fcport->d_id.b.area; 3684 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; 3685 } 3686 abt_iocb->handle_to_abort = 3687 make_handle(le16_to_cpu(aio->u.abt.req_que_no), 3688 aio->u.abt.cmd_hndl); 3689 abt_iocb->vp_index = vha->vp_idx; 3690 abt_iocb->req_que_no = aio->u.abt.req_que_no; 3691 3692 /* need to pass original sp */ 3693 if (orig_sp) 3694 qla_nvme_abort_set_option(abt_iocb, orig_sp); 3695 3696 /* Send the command to the firmware */ 3697 wmb(); 3698} 3699 3700static void 3701qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx) 3702{ 3703 int i, sz; 3704 3705 mbx->entry_type = MBX_IOCB_TYPE; 3706 mbx->handle = sp->handle; 3707 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb)); 3708 3709 for (i = 0; i < sz; i++) 3710 mbx->mb[i] = sp->u.iocb_cmd.u.mbx.out_mb[i]; 3711} 3712 3713static void 3714qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt) 3715{ 3716 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt; 3717 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg); 3718 ct_pkt->handle = sp->handle; 3719} 3720 3721static void qla2x00_send_notify_ack_iocb(srb_t *sp, 3722 struct nack_to_isp *nack) 3723{ 3724 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy; 3725 3726 nack->entry_type = NOTIFY_ACK_TYPE; 3727 nack->entry_count = 1; 3728 nack->ox_id = ntfy->ox_id; 3729 3730 nack->u.isp24.handle = sp->handle; 3731 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle; 3732 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) { 3733 nack->u.isp24.flags = ntfy->u.isp24.flags & 3734 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB); 3735 } 3736 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id; 3737 nack->u.isp24.status = ntfy->u.isp24.status; 3738 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode; 3739 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle; 3740 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address; 3741 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs; 3742 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui; 3743 nack->u.isp24.srr_flags = 0; 3744 nack->u.isp24.srr_reject_code = 0; 3745 nack->u.isp24.srr_reject_code_expl = 0; 3746 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index; 3747 3748 if (ntfy->u.isp24.status_subcode == ELS_PLOGI && 3749 (le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP) && 3750 sp->vha->hw->flags.edif_enabled) { 3751 ql_dbg(ql_dbg_disc, sp->vha, 0x3074, 3752 "%s PLOGI NACK sent with FC SECURITY bit, hdl=%x, loopid=%x, to pid %06x\n", 3753 sp->name, sp->handle, sp->fcport->loop_id, 3754 sp->fcport->d_id.b24); 3755 nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP); 3756 } 3757} 3758 3759/* 3760 * Build NVME LS request 3761 */ 3762static void 3763qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt) 3764{ 3765 struct srb_iocb *nvme; 3766 3767 nvme = &sp->u.iocb_cmd; 3768 cmd_pkt->entry_type = PT_LS4_REQUEST; 3769 cmd_pkt->entry_count = 1; 3770 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec); 3771 cmd_pkt->vp_index = sp->fcport->vha->vp_idx; 3772 3773 if (sp->unsol_rsp) { 3774 cmd_pkt->control_flags = 3775 cpu_to_le16(CF_LS4_RESPONDER << CF_LS4_SHIFT); 3776 cmd_pkt->nport_handle = nvme->u.nvme.nport_handle; 3777 cmd_pkt->exchange_address = nvme->u.nvme.exchange_address; 3778 } else { 3779 cmd_pkt->control_flags = 3780 cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT); 3781 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3782 cmd_pkt->rx_dseg_count = cpu_to_le16(1); 3783 cmd_pkt->rx_byte_count = nvme->u.nvme.rsp_len; 3784 cmd_pkt->dsd[1].length = nvme->u.nvme.rsp_len; 3785 put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address); 3786 } 3787 3788 cmd_pkt->tx_dseg_count = cpu_to_le16(1); 3789 cmd_pkt->tx_byte_count = nvme->u.nvme.cmd_len; 3790 cmd_pkt->dsd[0].length = nvme->u.nvme.cmd_len; 3791 put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address); 3792} 3793 3794static void 3795qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce) 3796{ 3797 int map, pos; 3798 3799 vce->entry_type = VP_CTRL_IOCB_TYPE; 3800 vce->handle = sp->handle; 3801 vce->entry_count = 1; 3802 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd); 3803 vce->vp_count = cpu_to_le16(1); 3804 3805 /* 3806 * index map in firmware starts with 1; decrement index 3807 * this is ok as we never use index 0 3808 */ 3809 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8; 3810 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7; 3811 vce->vp_idx_map[map] |= 1 << pos; 3812} 3813 3814static void 3815qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio) 3816{ 3817 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; 3818 logio->control_flags = 3819 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO); 3820 3821 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); 3822 logio->port_id[0] = sp->fcport->d_id.b.al_pa; 3823 logio->port_id[1] = sp->fcport->d_id.b.area; 3824 logio->port_id[2] = sp->fcport->d_id.b.domain; 3825 logio->vp_index = sp->fcport->vha->vp_idx; 3826} 3827 3828static int qla_get_iocbs_resource(struct srb *sp) 3829{ 3830 bool get_exch; 3831 bool push_it_through = false; 3832 3833 if (!ql2xenforce_iocb_limit) { 3834 sp->iores.res_type = RESOURCE_NONE; 3835 return 0; 3836 } 3837 sp->iores.res_type = RESOURCE_NONE; 3838 3839 switch (sp->type) { 3840 case SRB_TM_CMD: 3841 case SRB_PRLI_CMD: 3842 case SRB_ADISC_CMD: 3843 push_it_through = true; 3844 fallthrough; 3845 case SRB_LOGIN_CMD: 3846 case SRB_ELS_CMD_RPT: 3847 case SRB_ELS_CMD_HST: 3848 case SRB_ELS_CMD_HST_NOLOGIN: 3849 case SRB_CT_CMD: 3850 case SRB_NVME_LS: 3851 case SRB_ELS_DCMD: 3852 get_exch = true; 3853 break; 3854 3855 case SRB_FXIOCB_DCMD: 3856 case SRB_FXIOCB_BCMD: 3857 sp->iores.res_type = RESOURCE_NONE; 3858 return 0; 3859 3860 case SRB_SA_UPDATE: 3861 case SRB_SA_REPLACE: 3862 case SRB_MB_IOCB: 3863 case SRB_ABT_CMD: 3864 case SRB_NACK_PLOGI: 3865 case SRB_NACK_PRLI: 3866 case SRB_NACK_LOGO: 3867 case SRB_LOGOUT_CMD: 3868 case SRB_CTRL_VP: 3869 case SRB_MARKER: 3870 default: 3871 push_it_through = true; 3872 get_exch = false; 3873 } 3874 3875 sp->iores.res_type |= RESOURCE_IOCB; 3876 sp->iores.iocb_cnt = 1; 3877 if (get_exch) { 3878 sp->iores.res_type |= RESOURCE_EXCH; 3879 sp->iores.exch_cnt = 1; 3880 } 3881 if (push_it_through) 3882 sp->iores.res_type |= RESOURCE_FORCE; 3883 3884 return qla_get_fw_resources(sp->qpair, &sp->iores); 3885} 3886 3887static void 3888qla_marker_iocb(srb_t *sp, struct mrk_entry_24xx *mrk) 3889{ 3890 mrk->entry_type = MARKER_TYPE; 3891 mrk->modifier = sp->u.iocb_cmd.u.tmf.modifier; 3892 mrk->handle = make_handle(sp->qpair->req->id, sp->handle); 3893 if (sp->u.iocb_cmd.u.tmf.modifier != MK_SYNC_ALL) { 3894 mrk->nport_handle = cpu_to_le16(sp->u.iocb_cmd.u.tmf.loop_id); 3895 int_to_scsilun(sp->u.iocb_cmd.u.tmf.lun, (struct scsi_lun *)&mrk->lun); 3896 host_to_fcp_swap(mrk->lun, sizeof(mrk->lun)); 3897 mrk->vp_index = sp->u.iocb_cmd.u.tmf.vp_index; 3898 } 3899} 3900 3901int 3902qla2x00_start_sp(srb_t *sp) 3903{ 3904 int rval = QLA_SUCCESS; 3905 scsi_qla_host_t *vha = sp->vha; 3906 struct qla_hw_data *ha = vha->hw; 3907 struct qla_qpair *qp = sp->qpair; 3908 void *pkt; 3909 unsigned long flags; 3910 3911 if (vha->hw->flags.eeh_busy) 3912 return -EIO; 3913 3914 spin_lock_irqsave(qp->qp_lock_ptr, flags); 3915 rval = qla_get_iocbs_resource(sp); 3916 if (rval) { 3917 spin_unlock_irqrestore(qp->qp_lock_ptr, flags); 3918 return -EAGAIN; 3919 } 3920 3921 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp); 3922 if (!pkt) { 3923 rval = -EAGAIN; 3924 ql_log(ql_log_warn, vha, 0x700c, 3925 "qla2x00_alloc_iocbs failed.\n"); 3926 goto done; 3927 } 3928 3929 switch (sp->type) { 3930 case SRB_LOGIN_CMD: 3931 IS_FWI2_CAPABLE(ha) ? 3932 qla24xx_login_iocb(sp, pkt) : 3933 qla2x00_login_iocb(sp, pkt); 3934 break; 3935 case SRB_PRLI_CMD: 3936 qla24xx_prli_iocb(sp, pkt); 3937 break; 3938 case SRB_LOGOUT_CMD: 3939 IS_FWI2_CAPABLE(ha) ? 3940 qla24xx_logout_iocb(sp, pkt) : 3941 qla2x00_logout_iocb(sp, pkt); 3942 break; 3943 case SRB_ELS_CMD_RPT: 3944 case SRB_ELS_CMD_HST: 3945 qla24xx_els_iocb(sp, pkt); 3946 break; 3947 case SRB_ELS_CMD_HST_NOLOGIN: 3948 qla_els_pt_iocb(sp->vha, pkt, &sp->u.bsg_cmd.u.els_arg); 3949 ((struct els_entry_24xx *)pkt)->handle = sp->handle; 3950 break; 3951 case SRB_CT_CMD: 3952 IS_FWI2_CAPABLE(ha) ? 3953 qla24xx_ct_iocb(sp, pkt) : 3954 qla2x00_ct_iocb(sp, pkt); 3955 break; 3956 case SRB_ADISC_CMD: 3957 IS_FWI2_CAPABLE(ha) ? 3958 qla24xx_adisc_iocb(sp, pkt) : 3959 qla2x00_adisc_iocb(sp, pkt); 3960 break; 3961 case SRB_TM_CMD: 3962 IS_QLAFX00(ha) ? 3963 qlafx00_tm_iocb(sp, pkt) : 3964 qla24xx_tm_iocb(sp, pkt); 3965 break; 3966 case SRB_FXIOCB_DCMD: 3967 case SRB_FXIOCB_BCMD: 3968 qlafx00_fxdisc_iocb(sp, pkt); 3969 break; 3970 case SRB_NVME_LS: 3971 qla_nvme_ls(sp, pkt); 3972 break; 3973 case SRB_ABT_CMD: 3974 IS_QLAFX00(ha) ? 3975 qlafx00_abort_iocb(sp, pkt) : 3976 qla24xx_abort_iocb(sp, pkt); 3977 break; 3978 case SRB_ELS_DCMD: 3979 qla24xx_els_logo_iocb(sp, pkt); 3980 break; 3981 case SRB_CT_PTHRU_CMD: 3982 qla2x00_ctpthru_cmd_iocb(sp, pkt); 3983 break; 3984 case SRB_MB_IOCB: 3985 qla2x00_mb_iocb(sp, pkt); 3986 break; 3987 case SRB_NACK_PLOGI: 3988 case SRB_NACK_PRLI: 3989 case SRB_NACK_LOGO: 3990 qla2x00_send_notify_ack_iocb(sp, pkt); 3991 break; 3992 case SRB_CTRL_VP: 3993 qla25xx_ctrlvp_iocb(sp, pkt); 3994 break; 3995 case SRB_PRLO_CMD: 3996 qla24xx_prlo_iocb(sp, pkt); 3997 break; 3998 case SRB_SA_UPDATE: 3999 qla24xx_sa_update_iocb(sp, pkt); 4000 break; 4001 case SRB_SA_REPLACE: 4002 qla24xx_sa_replace_iocb(sp, pkt); 4003 break; 4004 case SRB_MARKER: 4005 qla_marker_iocb(sp, pkt); 4006 break; 4007 default: 4008 break; 4009 } 4010 4011 if (sp->start_timer) { 4012 /* ref: TMR timer ref 4013 * this code should be just before start_iocbs function 4014 * This will make sure that caller function don't to do 4015 * kref_put even on failure 4016 */ 4017 kref_get(&sp->cmd_kref); 4018 add_timer(&sp->u.iocb_cmd.timer); 4019 } 4020 4021 wmb(); 4022 qla2x00_start_iocbs(vha, qp->req); 4023done: 4024 if (rval) 4025 qla_put_fw_resources(sp->qpair, &sp->iores); 4026 spin_unlock_irqrestore(qp->qp_lock_ptr, flags); 4027 return rval; 4028} 4029 4030static void 4031qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, 4032 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) 4033{ 4034 uint16_t avail_dsds; 4035 struct dsd64 *cur_dsd; 4036 uint32_t req_data_len = 0; 4037 uint32_t rsp_data_len = 0; 4038 struct scatterlist *sg; 4039 int index; 4040 int entry_count = 1; 4041 struct bsg_job *bsg_job = sp->u.bsg_job; 4042 4043 /*Update entry type to indicate bidir command */ 4044 put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type); 4045 4046 /* Set the transfer direction, in this set both flags 4047 * Also set the BD_WRAP_BACK flag, firmware will take care 4048 * assigning DID=SID for outgoing pkts. 4049 */ 4050 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); 4051 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); 4052 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | 4053 BD_WRAP_BACK); 4054 4055 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; 4056 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); 4057 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); 4058 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); 4059 4060 vha->bidi_stats.transfer_bytes += req_data_len; 4061 vha->bidi_stats.io_count++; 4062 4063 vha->qla_stats.output_bytes += req_data_len; 4064 vha->qla_stats.output_requests++; 4065 4066 /* Only one dsd is available for bidirectional IOCB, remaining dsds 4067 * are bundled in continuation iocb 4068 */ 4069 avail_dsds = 1; 4070 cur_dsd = &cmd_pkt->fcp_dsd; 4071 4072 index = 0; 4073 4074 for_each_sg(bsg_job->request_payload.sg_list, sg, 4075 bsg_job->request_payload.sg_cnt, index) { 4076 cont_a64_entry_t *cont_pkt; 4077 4078 /* Allocate additional continuation packets */ 4079 if (avail_dsds == 0) { 4080 /* Continuation type 1 IOCB can accomodate 4081 * 5 DSDS 4082 */ 4083 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 4084 cur_dsd = cont_pkt->dsd; 4085 avail_dsds = 5; 4086 entry_count++; 4087 } 4088 append_dsd64(&cur_dsd, sg); 4089 avail_dsds--; 4090 } 4091 /* For read request DSD will always goes to continuation IOCB 4092 * and follow the write DSD. If there is room on the current IOCB 4093 * then it is added to that IOCB else new continuation IOCB is 4094 * allocated. 4095 */ 4096 for_each_sg(bsg_job->reply_payload.sg_list, sg, 4097 bsg_job->reply_payload.sg_cnt, index) { 4098 cont_a64_entry_t *cont_pkt; 4099 4100 /* Allocate additional continuation packets */ 4101 if (avail_dsds == 0) { 4102 /* Continuation type 1 IOCB can accomodate 4103 * 5 DSDS 4104 */ 4105 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); 4106 cur_dsd = cont_pkt->dsd; 4107 avail_dsds = 5; 4108 entry_count++; 4109 } 4110 append_dsd64(&cur_dsd, sg); 4111 avail_dsds--; 4112 } 4113 /* This value should be same as number of IOCB required for this cmd */ 4114 cmd_pkt->entry_count = entry_count; 4115} 4116 4117int 4118qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) 4119{ 4120 4121 struct qla_hw_data *ha = vha->hw; 4122 unsigned long flags; 4123 uint32_t handle; 4124 uint16_t req_cnt; 4125 uint16_t cnt; 4126 uint32_t *clr_ptr; 4127 struct cmd_bidir *cmd_pkt = NULL; 4128 struct rsp_que *rsp; 4129 struct req_que *req; 4130 int rval = EXT_STATUS_OK; 4131 4132 rval = QLA_SUCCESS; 4133 4134 rsp = ha->rsp_q_map[0]; 4135 req = vha->req; 4136 4137 /* Send marker if required */ 4138 if (vha->marker_needed != 0) { 4139 if (qla2x00_marker(vha, ha->base_qpair, 4140 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) 4141 return EXT_STATUS_MAILBOX; 4142 vha->marker_needed = 0; 4143 } 4144 4145 /* Acquire ring specific lock */ 4146 spin_lock_irqsave(&ha->hardware_lock, flags); 4147 4148 handle = qla2xxx_get_next_handle(req); 4149 if (handle == 0) { 4150 rval = EXT_STATUS_BUSY; 4151 goto queuing_error; 4152 } 4153 4154 /* Calculate number of IOCB required */ 4155 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 4156 4157 /* Check for room on request queue. */ 4158 if (req->cnt < req_cnt + 2) { 4159 if (IS_SHADOW_REG_CAPABLE(ha)) { 4160 cnt = *req->out_ptr; 4161 } else { 4162 cnt = rd_reg_dword_relaxed(req->req_q_out); 4163 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 4164 goto queuing_error; 4165 } 4166 4167 if (req->ring_index < cnt) 4168 req->cnt = cnt - req->ring_index; 4169 else 4170 req->cnt = req->length - 4171 (req->ring_index - cnt); 4172 } 4173 if (req->cnt < req_cnt + 2) { 4174 rval = EXT_STATUS_BUSY; 4175 goto queuing_error; 4176 } 4177 4178 cmd_pkt = (struct cmd_bidir *)req->ring_ptr; 4179 cmd_pkt->handle = make_handle(req->id, handle); 4180 4181 /* Zero out remaining portion of packet. */ 4182 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ 4183 clr_ptr = (uint32_t *)cmd_pkt + 2; 4184 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 4185 4186 /* Set NPORT-ID (of vha)*/ 4187 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); 4188 cmd_pkt->port_id[0] = vha->d_id.b.al_pa; 4189 cmd_pkt->port_id[1] = vha->d_id.b.area; 4190 cmd_pkt->port_id[2] = vha->d_id.b.domain; 4191 4192 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); 4193 cmd_pkt->entry_status = (uint8_t) rsp->id; 4194 /* Build command packet. */ 4195 req->current_outstanding_cmd = handle; 4196 req->outstanding_cmds[handle] = sp; 4197 sp->handle = handle; 4198 req->cnt -= req_cnt; 4199 4200 /* Send the command to the firmware */ 4201 wmb(); 4202 qla2x00_start_iocbs(vha, req); 4203queuing_error: 4204 spin_unlock_irqrestore(&ha->hardware_lock, flags); 4205 4206 return rval; 4207} 4208 4209/** 4210 * qla_start_scsi_type6() - Send a SCSI command to the ISP 4211 * @sp: command to send to the ISP 4212 * 4213 * Returns non-zero if a failure occurred, else zero. 4214 */ 4215static int 4216qla_start_scsi_type6(srb_t *sp) 4217{ 4218 int nseg; 4219 unsigned long flags; 4220 uint32_t *clr_ptr; 4221 uint32_t handle; 4222 struct cmd_type_6 *cmd_pkt; 4223 uint16_t cnt; 4224 uint16_t req_cnt; 4225 uint16_t tot_dsds; 4226 struct req_que *req = NULL; 4227 struct rsp_que *rsp; 4228 struct scsi_cmnd *cmd = GET_CMD_SP(sp); 4229 struct scsi_qla_host *vha = sp->fcport->vha; 4230 struct qla_hw_data *ha = vha->hw; 4231 struct qla_qpair *qpair = sp->qpair; 4232 uint16_t more_dsd_lists = 0; 4233 struct dsd_dma *dsd_ptr; 4234 uint16_t i; 4235 __be32 *fcp_dl; 4236 uint8_t additional_cdb_len; 4237 struct ct6_dsd *ctx; 4238 4239 /* Acquire qpair specific lock */ 4240 spin_lock_irqsave(&qpair->qp_lock, flags); 4241 4242 /* Setup qpair pointers */ 4243 req = qpair->req; 4244 rsp = qpair->rsp; 4245 4246 /* So we know we haven't pci_map'ed anything yet */ 4247 tot_dsds = 0; 4248 4249 /* Send marker if required */ 4250 if (vha->marker_needed != 0) { 4251 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { 4252 spin_unlock_irqrestore(&qpair->qp_lock, flags); 4253 return QLA_FUNCTION_FAILED; 4254 } 4255 vha->marker_needed = 0; 4256 } 4257 4258 handle = qla2xxx_get_next_handle(req); 4259 if (handle == 0) 4260 goto queuing_error; 4261 4262 /* Map the sg table so we have an accurate count of sg entries needed */ 4263 if (scsi_sg_count(cmd)) { 4264 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), 4265 scsi_sg_count(cmd), cmd->sc_data_direction); 4266 if (unlikely(!nseg)) 4267 goto queuing_error; 4268 } else { 4269 nseg = 0; 4270 } 4271 4272 tot_dsds = nseg; 4273 4274 /* eventhough driver only need 1 T6 IOCB, FW still convert DSD to Continueation IOCB */ 4275 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); 4276 4277 sp->iores.res_type = RESOURCE_IOCB | RESOURCE_EXCH; 4278 sp->iores.exch_cnt = 1; 4279 sp->iores.iocb_cnt = req_cnt; 4280 4281 if (qla_get_fw_resources(sp->qpair, &sp->iores)) 4282 goto queuing_error; 4283 4284 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); 4285 if ((more_dsd_lists + qpair->dsd_inuse) >= NUM_DSD_CHAIN) { 4286 ql_dbg(ql_dbg_io, vha, 0x3028, 4287 "Num of DSD list %d is than %d for cmd=%p.\n", 4288 more_dsd_lists + qpair->dsd_inuse, NUM_DSD_CHAIN, cmd); 4289 goto queuing_error; 4290 } 4291 4292 if (more_dsd_lists <= qpair->dsd_avail) 4293 goto sufficient_dsds; 4294 else 4295 more_dsd_lists -= qpair->dsd_avail; 4296 4297 for (i = 0; i < more_dsd_lists; i++) { 4298 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC); 4299 if (!dsd_ptr) { 4300 ql_log(ql_log_fatal, vha, 0x3029, 4301 "Failed to allocate memory for dsd_dma for cmd=%p.\n", cmd); 4302 goto queuing_error; 4303 } 4304 INIT_LIST_HEAD(&dsd_ptr->list); 4305 4306 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, 4307 GFP_ATOMIC, &dsd_ptr->dsd_list_dma); 4308 if (!dsd_ptr->dsd_addr) { 4309 kfree(dsd_ptr); 4310 ql_log(ql_log_fatal, vha, 0x302a, 4311 "Failed to allocate memory for dsd_addr for cmd=%p.\n", cmd); 4312 goto queuing_error; 4313 } 4314 list_add_tail(&dsd_ptr->list, &qpair->dsd_list); 4315 qpair->dsd_avail++; 4316 } 4317 4318sufficient_dsds: 4319 req_cnt = 1; 4320 4321 if (req->cnt < (req_cnt + 2)) { 4322 if (IS_SHADOW_REG_CAPABLE(ha)) { 4323 cnt = *req->out_ptr; 4324 } else { 4325 cnt = (uint16_t)rd_reg_dword_relaxed(req->req_q_out); 4326 if (qla2x00_check_reg16_for_disconnect(vha, cnt)) 4327 goto queuing_error; 4328 } 4329 4330 if (req->ring_index < cnt) 4331 req->cnt = cnt - req->ring_index; 4332 else 4333 req->cnt = req->length - (req->ring_index - cnt); 4334 if (req->cnt < (req_cnt + 2)) 4335 goto queuing_error; 4336 } 4337 4338 ctx = &sp->u.scmd.ct6_ctx; 4339 4340 memset(ctx, 0, sizeof(struct ct6_dsd)); 4341 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool, 4342 GFP_ATOMIC, &ctx->fcp_cmnd_dma); 4343 if (!ctx->fcp_cmnd) { 4344 ql_log(ql_log_fatal, vha, 0x3031, 4345 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); 4346 goto queuing_error; 4347 } 4348 4349 /* Initialize the DSD list and dma handle */ 4350 INIT_LIST_HEAD(&ctx->dsd_list); 4351 ctx->dsd_use_cnt = 0; 4352 4353 if (cmd->cmd_len > 16) { 4354 additional_cdb_len = cmd->cmd_len - 16; 4355 if (cmd->cmd_len % 4 || 4356 cmd->cmd_len > QLA_CDB_BUF_SIZE) { 4357 /* 4358 * SCSI command bigger than 16 bytes must be 4359 * multiple of 4 or too big. 4360 */ 4361 ql_log(ql_log_warn, vha, 0x3033, 4362 "scsi cmd len %d not multiple of 4 for cmd=%p.\n", 4363 cmd->cmd_len, cmd); 4364 goto queuing_error_fcp_cmnd; 4365 } 4366 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; 4367 } else { 4368 additional_cdb_len = 0; 4369 ctx->fcp_cmnd_len = 12 + 16 + 4; 4370 } 4371 4372 /* Build command packet. */ 4373 req->current_outstanding_cmd = handle; 4374 req->outstanding_cmds[handle] = sp; 4375 sp->handle = handle; 4376 cmd->host_scribble = (unsigned char *)(unsigned long)handle; 4377 req->cnt -= req_cnt; 4378 4379 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; 4380 cmd_pkt->handle = make_handle(req->id, handle); 4381 4382 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ 4383 clr_ptr = (uint32_t *)cmd_pkt + 2; 4384 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); 4385 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); 4386 4387 /* Set NPORT-ID and LUN number */ 4388 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); 4389 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; 4390 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; 4391 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; 4392 cmd_pkt->vp_index = sp->vha->vp_idx; 4393 4394 /* Build IOCB segments */ 4395 qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds); 4396 4397 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); 4398 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); 4399 4400 /* build FCP_CMND IU */ 4401 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); 4402 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; 4403 4404 if (cmd->sc_data_direction == DMA_TO_DEVICE) 4405 ctx->fcp_cmnd->additional_cdb_len |= 1; 4406 else if (cmd->sc_data_direction == DMA_FROM_DEVICE) 4407 ctx->fcp_cmnd->additional_cdb_len |= 2; 4408 4409 /* Populate the FCP_PRIO. */ 4410 if (ha->flags.fcp_prio_enabled) 4411 ctx->fcp_cmnd->task_attribute |= 4412 sp->fcport->fcp_prio << 3; 4413 4414 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); 4415 4416 fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 + 4417 additional_cdb_len); 4418 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); 4419 4420 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); 4421 put_unaligned_le64(ctx->fcp_cmnd_dma, 4422 &cmd_pkt->fcp_cmnd_dseg_address); 4423 4424 sp->flags |= SRB_FCP_CMND_DMA_VALID; 4425 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); 4426 /* Set total data segment count. */ 4427 cmd_pkt->entry_count = (uint8_t)req_cnt; 4428 4429 wmb(); 4430 /* Adjust ring index. */ 4431 req->ring_index++; 4432 if (req->ring_index == req->length) { 4433 req->ring_index = 0; 4434 req->ring_ptr = req->ring; 4435 } else { 4436 req->ring_ptr++; 4437 } 4438 4439 sp->qpair->cmd_cnt++; 4440 sp->flags |= SRB_DMA_VALID; 4441 4442 /* Set chip new ring index. */ 4443 wrt_reg_dword(req->req_q_in, req->ring_index); 4444 4445 /* Manage unprocessed RIO/ZIO commands in response queue. */ 4446 if (vha->flags.process_response_queue && 4447 rsp->ring_ptr->signature != RESPONSE_PROCESSED) 4448 qla24xx_process_response_queue(vha, rsp); 4449 4450 spin_unlock_irqrestore(&qpair->qp_lock, flags); 4451 4452 return QLA_SUCCESS; 4453 4454queuing_error_fcp_cmnd: 4455 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); 4456 4457queuing_error: 4458 if (tot_dsds) 4459 scsi_dma_unmap(cmd); 4460 4461 qla_put_fw_resources(sp->qpair, &sp->iores); 4462 4463 if (sp->u.scmd.crc_ctx) { 4464 mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool); 4465 sp->u.scmd.crc_ctx = NULL; 4466 } 4467 4468 spin_unlock_irqrestore(&qpair->qp_lock, flags); 4469 4470 return QLA_FUNCTION_FAILED; 4471} 4472