1 /** 2 * Copyright (C) 2005 - 2014 Emulex 3 * All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License version 2 7 * as published by the Free Software Foundation. The full GNU General 8 * Public License is included in this distribution in the file called COPYING. 9 * 10 * Contact Information: 11 * linux-drivers@emulex.com 12 * 13 * Emulex 14 * 3333 Susan Street 15 * Costa Mesa, CA 92626 16 */ 17 18 #include <scsi/iscsi_proto.h> 19 20 #include "be_main.h" 21 #include "be.h" 22 #include "be_mgmt.h" 23 24 int beiscsi_pci_soft_reset(struct beiscsi_hba *phba) 25 { 26 u32 sreset; 27 u8 *pci_reset_offset = 0; 28 u8 *pci_online0_offset = 0; 29 u8 *pci_online1_offset = 0; 30 u32 pconline0 = 0; 31 u32 pconline1 = 0; 32 u32 i; 33 34 pci_reset_offset = (u8 *)phba->pci_va + BE2_SOFT_RESET; 35 pci_online0_offset = (u8 *)phba->pci_va + BE2_PCI_ONLINE0; 36 pci_online1_offset = (u8 *)phba->pci_va + BE2_PCI_ONLINE1; 37 sreset = readl((void *)pci_reset_offset); 38 sreset |= BE2_SET_RESET; 39 writel(sreset, (void *)pci_reset_offset); 40 41 i = 0; 42 while (sreset & BE2_SET_RESET) { 43 if (i > 64) 44 break; 45 msleep(100); 46 sreset = readl((void *)pci_reset_offset); 47 i++; 48 } 49 50 if (sreset & BE2_SET_RESET) { 51 printk(KERN_ERR DRV_NAME 52 " Soft Reset did not deassert\n"); 53 return -EIO; 54 } 55 pconline1 = BE2_MPU_IRAM_ONLINE; 56 writel(pconline0, (void *)pci_online0_offset); 57 writel(pconline1, (void *)pci_online1_offset); 58 59 sreset |= BE2_SET_RESET; 60 writel(sreset, (void *)pci_reset_offset); 61 62 i = 0; 63 while (sreset & BE2_SET_RESET) { 64 if (i > 64) 65 break; 66 msleep(1); 67 sreset = readl((void *)pci_reset_offset); 68 i++; 69 } 70 if (sreset & BE2_SET_RESET) { 71 printk(KERN_ERR DRV_NAME 72 " MPU Online Soft Reset did not deassert\n"); 73 return -EIO; 74 } 75 return 0; 76 } 77 78 int be_chk_reset_complete(struct beiscsi_hba *phba) 79 { 80 unsigned int num_loop; 81 u8 *mpu_sem = 0; 82 u32 status; 83 84 num_loop = 1000; 85 mpu_sem = (u8 *)phba->csr_va + MPU_EP_SEMAPHORE; 86 msleep(5000); 87 88 while (num_loop) { 89 status = readl((void *)mpu_sem); 90 91 if ((status & 0x80000000) || (status & 0x0000FFFF) == 0xC000) 92 break; 93 msleep(60); 94 num_loop--; 95 } 96 97 if ((status & 0x80000000) || (!num_loop)) { 98 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 99 "BC_%d : Failed in be_chk_reset_complete" 100 "status = 0x%x\n", status); 101 return -EIO; 102 } 103 104 return 0; 105 } 106 107 void be_mcc_notify(struct beiscsi_hba *phba) 108 { 109 struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; 110 u32 val = 0; 111 112 val |= mccq->id & DB_MCCQ_RING_ID_MASK; 113 val |= 1 << DB_MCCQ_NUM_POSTED_SHIFT; 114 iowrite32(val, phba->db_va + DB_MCCQ_OFFSET); 115 } 116 117 unsigned int alloc_mcc_tag(struct beiscsi_hba *phba) 118 { 119 unsigned int tag = 0; 120 121 if (phba->ctrl.mcc_tag_available) { 122 tag = phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index]; 123 phba->ctrl.mcc_tag[phba->ctrl.mcc_alloc_index] = 0; 124 phba->ctrl.mcc_numtag[tag] = 0; 125 } 126 if (tag) { 127 phba->ctrl.mcc_tag_available--; 128 if (phba->ctrl.mcc_alloc_index == (MAX_MCC_CMD - 1)) 129 phba->ctrl.mcc_alloc_index = 0; 130 else 131 phba->ctrl.mcc_alloc_index++; 132 } 133 return tag; 134 } 135 136 /* 137 * beiscsi_mccq_compl()- Wait for completion of MBX 138 * @phba: Driver private structure 139 * @tag: Tag for the MBX Command 140 * @wrb: the WRB used for the MBX Command 141 * @mbx_cmd_mem: ptr to memory allocated for MBX Cmd 142 * 143 * Waits for MBX completion with the passed TAG. 144 * 145 * return 146 * Success: 0 147 * Failure: Non-Zero 148 **/ 149 int beiscsi_mccq_compl(struct beiscsi_hba *phba, 150 uint32_t tag, struct be_mcc_wrb **wrb, 151 struct be_dma_mem *mbx_cmd_mem) 152 { 153 int rc = 0; 154 uint32_t mcc_tag_response; 155 uint16_t status = 0, addl_status = 0, wrb_num = 0; 156 struct be_mcc_wrb *temp_wrb; 157 struct be_cmd_req_hdr *mbx_hdr; 158 struct be_cmd_resp_hdr *mbx_resp_hdr; 159 struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; 160 161 if (beiscsi_error(phba)) { 162 free_mcc_tag(&phba->ctrl, tag); 163 return -EPERM; 164 } 165 166 /* Set MBX Tag state to Active */ 167 spin_lock(&phba->ctrl.mbox_lock); 168 phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_RUNNING; 169 spin_unlock(&phba->ctrl.mbox_lock); 170 171 /* wait for the mccq completion */ 172 rc = wait_event_interruptible_timeout( 173 phba->ctrl.mcc_wait[tag], 174 phba->ctrl.mcc_numtag[tag], 175 msecs_to_jiffies( 176 BEISCSI_HOST_MBX_TIMEOUT)); 177 178 if (rc <= 0) { 179 struct be_dma_mem *tag_mem; 180 /* Set MBX Tag state to timeout */ 181 spin_lock(&phba->ctrl.mbox_lock); 182 phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_TIMEOUT; 183 spin_unlock(&phba->ctrl.mbox_lock); 184 185 /* Store resource addr to be freed later */ 186 tag_mem = &phba->ctrl.ptag_state[tag].tag_mem_state; 187 if (mbx_cmd_mem) { 188 tag_mem->size = mbx_cmd_mem->size; 189 tag_mem->va = mbx_cmd_mem->va; 190 tag_mem->dma = mbx_cmd_mem->dma; 191 } else 192 tag_mem->size = 0; 193 194 beiscsi_log(phba, KERN_ERR, 195 BEISCSI_LOG_INIT | BEISCSI_LOG_EH | 196 BEISCSI_LOG_CONFIG, 197 "BC_%d : MBX Cmd Completion timed out\n"); 198 return -EBUSY; 199 } else { 200 rc = 0; 201 /* Set MBX Tag state to completed */ 202 spin_lock(&phba->ctrl.mbox_lock); 203 phba->ctrl.ptag_state[tag].tag_state = MCC_TAG_STATE_COMPLETED; 204 spin_unlock(&phba->ctrl.mbox_lock); 205 } 206 207 mcc_tag_response = phba->ctrl.mcc_numtag[tag]; 208 status = (mcc_tag_response & CQE_STATUS_MASK); 209 addl_status = ((mcc_tag_response & CQE_STATUS_ADDL_MASK) >> 210 CQE_STATUS_ADDL_SHIFT); 211 212 if (mbx_cmd_mem) { 213 mbx_hdr = (struct be_cmd_req_hdr *)mbx_cmd_mem->va; 214 } else { 215 wrb_num = (mcc_tag_response & CQE_STATUS_WRB_MASK) >> 216 CQE_STATUS_WRB_SHIFT; 217 temp_wrb = (struct be_mcc_wrb *)queue_get_wrb(mccq, wrb_num); 218 mbx_hdr = embedded_payload(temp_wrb); 219 220 if (wrb) 221 *wrb = temp_wrb; 222 } 223 224 if (status || addl_status) { 225 beiscsi_log(phba, KERN_WARNING, 226 BEISCSI_LOG_INIT | BEISCSI_LOG_EH | 227 BEISCSI_LOG_CONFIG, 228 "BC_%d : MBX Cmd Failed for " 229 "Subsys : %d Opcode : %d with " 230 "Status : %d and Extd_Status : %d\n", 231 mbx_hdr->subsystem, 232 mbx_hdr->opcode, 233 status, addl_status); 234 235 if (status == MCC_STATUS_INSUFFICIENT_BUFFER) { 236 mbx_resp_hdr = (struct be_cmd_resp_hdr *) mbx_hdr; 237 beiscsi_log(phba, KERN_WARNING, 238 BEISCSI_LOG_INIT | BEISCSI_LOG_EH | 239 BEISCSI_LOG_CONFIG, 240 "BC_%d : Insufficient Buffer Error " 241 "Resp_Len : %d Actual_Resp_Len : %d\n", 242 mbx_resp_hdr->response_length, 243 mbx_resp_hdr->actual_resp_len); 244 245 rc = -EAGAIN; 246 goto release_mcc_tag; 247 } 248 rc = -EIO; 249 } 250 251 release_mcc_tag: 252 /* Release the MCC entry */ 253 free_mcc_tag(&phba->ctrl, tag); 254 255 return rc; 256 } 257 258 void free_mcc_tag(struct be_ctrl_info *ctrl, unsigned int tag) 259 { 260 spin_lock(&ctrl->mbox_lock); 261 tag = tag & 0x000000FF; 262 ctrl->mcc_tag[ctrl->mcc_free_index] = tag; 263 if (ctrl->mcc_free_index == (MAX_MCC_CMD - 1)) 264 ctrl->mcc_free_index = 0; 265 else 266 ctrl->mcc_free_index++; 267 ctrl->mcc_tag_available++; 268 spin_unlock(&ctrl->mbox_lock); 269 } 270 271 bool is_link_state_evt(u32 trailer) 272 { 273 return (((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) & 274 ASYNC_TRAILER_EVENT_CODE_MASK) == 275 ASYNC_EVENT_CODE_LINK_STATE); 276 } 277 278 static bool is_iscsi_evt(u32 trailer) 279 { 280 return ((trailer >> ASYNC_TRAILER_EVENT_CODE_SHIFT) & 281 ASYNC_TRAILER_EVENT_CODE_MASK) == 282 ASYNC_EVENT_CODE_ISCSI; 283 } 284 285 static int iscsi_evt_type(u32 trailer) 286 { 287 return (trailer >> ASYNC_TRAILER_EVENT_TYPE_SHIFT) & 288 ASYNC_TRAILER_EVENT_TYPE_MASK; 289 } 290 291 static inline bool be_mcc_compl_is_new(struct be_mcc_compl *compl) 292 { 293 if (compl->flags != 0) { 294 compl->flags = le32_to_cpu(compl->flags); 295 WARN_ON((compl->flags & CQE_FLAGS_VALID_MASK) == 0); 296 return true; 297 } else 298 return false; 299 } 300 301 static inline void be_mcc_compl_use(struct be_mcc_compl *compl) 302 { 303 compl->flags = 0; 304 } 305 306 /* 307 * be_mcc_compl_process()- Check the MBX comapletion status 308 * @ctrl: Function specific MBX data structure 309 * @compl: Completion status of MBX Command 310 * 311 * Check for the MBX completion status when BMBX method used 312 * 313 * return 314 * Success: Zero 315 * Failure: Non-Zero 316 **/ 317 static int be_mcc_compl_process(struct be_ctrl_info *ctrl, 318 struct be_mcc_compl *compl) 319 { 320 u16 compl_status, extd_status; 321 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 322 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 323 struct be_cmd_req_hdr *hdr = embedded_payload(wrb); 324 struct be_cmd_resp_hdr *resp_hdr; 325 326 be_dws_le_to_cpu(compl, 4); 327 328 compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) & 329 CQE_STATUS_COMPL_MASK; 330 if (compl_status != MCC_STATUS_SUCCESS) { 331 extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) & 332 CQE_STATUS_EXTD_MASK; 333 334 beiscsi_log(phba, KERN_ERR, 335 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 336 "BC_%d : error in cmd completion: " 337 "Subsystem : %d Opcode : %d " 338 "status(compl/extd)=%d/%d\n", 339 hdr->subsystem, hdr->opcode, 340 compl_status, extd_status); 341 342 if (compl_status == MCC_STATUS_INSUFFICIENT_BUFFER) { 343 resp_hdr = (struct be_cmd_resp_hdr *) hdr; 344 if (resp_hdr->response_length) 345 return 0; 346 } 347 return -EBUSY; 348 } 349 return 0; 350 } 351 352 int be_mcc_compl_process_isr(struct be_ctrl_info *ctrl, 353 struct be_mcc_compl *compl) 354 { 355 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 356 u16 compl_status, extd_status; 357 unsigned short tag; 358 359 be_dws_le_to_cpu(compl, 4); 360 361 compl_status = (compl->status >> CQE_STATUS_COMPL_SHIFT) & 362 CQE_STATUS_COMPL_MASK; 363 /* The ctrl.mcc_numtag[tag] is filled with 364 * [31] = valid, [30:24] = Rsvd, [23:16] = wrb, [15:8] = extd_status, 365 * [7:0] = compl_status 366 */ 367 tag = (compl->tag0 & 0x000000FF); 368 extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) & 369 CQE_STATUS_EXTD_MASK; 370 371 ctrl->mcc_numtag[tag] = 0x80000000; 372 ctrl->mcc_numtag[tag] |= (compl->tag0 & 0x00FF0000); 373 ctrl->mcc_numtag[tag] |= (extd_status & 0x000000FF) << 8; 374 ctrl->mcc_numtag[tag] |= (compl_status & 0x000000FF); 375 376 if (ctrl->ptag_state[tag].tag_state == MCC_TAG_STATE_RUNNING) { 377 wake_up_interruptible(&ctrl->mcc_wait[tag]); 378 } else if (ctrl->ptag_state[tag].tag_state == MCC_TAG_STATE_TIMEOUT) { 379 struct be_dma_mem *tag_mem; 380 tag_mem = &ctrl->ptag_state[tag].tag_mem_state; 381 382 beiscsi_log(phba, KERN_WARNING, 383 BEISCSI_LOG_MBOX | BEISCSI_LOG_INIT | 384 BEISCSI_LOG_CONFIG, 385 "BC_%d : MBX Completion for timeout Command " 386 "from FW\n"); 387 /* Check if memory needs to be freed */ 388 if (tag_mem->size) 389 pci_free_consistent(ctrl->pdev, tag_mem->size, 390 tag_mem->va, tag_mem->dma); 391 392 /* Change tag state */ 393 spin_lock(&phba->ctrl.mbox_lock); 394 ctrl->ptag_state[tag].tag_state = MCC_TAG_STATE_COMPLETED; 395 spin_unlock(&phba->ctrl.mbox_lock); 396 397 /* Free MCC Tag */ 398 free_mcc_tag(ctrl, tag); 399 } 400 401 return 0; 402 } 403 404 static struct be_mcc_compl *be_mcc_compl_get(struct beiscsi_hba *phba) 405 { 406 struct be_queue_info *mcc_cq = &phba->ctrl.mcc_obj.cq; 407 struct be_mcc_compl *compl = queue_tail_node(mcc_cq); 408 409 if (be_mcc_compl_is_new(compl)) { 410 queue_tail_inc(mcc_cq); 411 return compl; 412 } 413 return NULL; 414 } 415 416 /** 417 * be2iscsi_fail_session(): Closing session with appropriate error 418 * @cls_session: ptr to session 419 * 420 * Depending on adapter state appropriate error flag is passed. 421 **/ 422 void be2iscsi_fail_session(struct iscsi_cls_session *cls_session) 423 { 424 struct Scsi_Host *shost = iscsi_session_to_shost(cls_session); 425 struct beiscsi_hba *phba = iscsi_host_priv(shost); 426 uint32_t iscsi_err_flag; 427 428 if (phba->state & BE_ADAPTER_STATE_SHUTDOWN) 429 iscsi_err_flag = ISCSI_ERR_INVALID_HOST; 430 else 431 iscsi_err_flag = ISCSI_ERR_CONN_FAILED; 432 433 iscsi_session_failure(cls_session->dd_data, ISCSI_ERR_CONN_FAILED); 434 } 435 436 void beiscsi_async_link_state_process(struct beiscsi_hba *phba, 437 struct be_async_event_link_state *evt) 438 { 439 if ((evt->port_link_status == ASYNC_EVENT_LINK_DOWN) || 440 ((evt->port_link_status & ASYNC_EVENT_LOGICAL) && 441 (evt->port_fault != BEISCSI_PHY_LINK_FAULT_NONE))) { 442 phba->state = BE_ADAPTER_LINK_DOWN; 443 444 beiscsi_log(phba, KERN_ERR, 445 BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT, 446 "BC_%d : Link Down on Port %d\n", 447 evt->physical_port); 448 449 iscsi_host_for_each_session(phba->shost, 450 be2iscsi_fail_session); 451 } else if ((evt->port_link_status & ASYNC_EVENT_LINK_UP) || 452 ((evt->port_link_status & ASYNC_EVENT_LOGICAL) && 453 (evt->port_fault == BEISCSI_PHY_LINK_FAULT_NONE))) { 454 phba->state = BE_ADAPTER_LINK_UP | BE_ADAPTER_CHECK_BOOT; 455 456 beiscsi_log(phba, KERN_ERR, 457 BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT, 458 "BC_%d : Link UP on Port %d\n", 459 evt->physical_port); 460 } 461 } 462 463 int beiscsi_process_mcc(struct beiscsi_hba *phba) 464 { 465 struct be_mcc_compl *compl; 466 int num = 0, status = 0; 467 struct be_ctrl_info *ctrl = &phba->ctrl; 468 469 spin_lock_bh(&phba->ctrl.mcc_cq_lock); 470 while ((compl = be_mcc_compl_get(phba))) { 471 if (compl->flags & CQE_FLAGS_ASYNC_MASK) { 472 /* Interpret flags as an async trailer */ 473 if (is_link_state_evt(compl->flags)) 474 /* Interpret compl as a async link evt */ 475 beiscsi_async_link_state_process(phba, 476 (struct be_async_event_link_state *) compl); 477 else if (is_iscsi_evt(compl->flags)) { 478 switch (iscsi_evt_type(compl->flags)) { 479 case ASYNC_EVENT_NEW_ISCSI_TGT_DISC: 480 case ASYNC_EVENT_NEW_ISCSI_CONN: 481 case ASYNC_EVENT_NEW_TCP_CONN: 482 phba->state |= BE_ADAPTER_CHECK_BOOT; 483 beiscsi_log(phba, KERN_ERR, 484 BEISCSI_LOG_CONFIG | 485 BEISCSI_LOG_MBOX, 486 "BC_%d : Async iscsi Event," 487 " flags handled = 0x%08x\n", 488 compl->flags); 489 break; 490 default: 491 beiscsi_log(phba, KERN_ERR, 492 BEISCSI_LOG_CONFIG | 493 BEISCSI_LOG_MBOX, 494 "BC_%d : Unsupported Async" 495 " Event, flags = 0x%08x\n", 496 compl->flags); 497 } 498 } else 499 beiscsi_log(phba, KERN_ERR, 500 BEISCSI_LOG_CONFIG | 501 BEISCSI_LOG_MBOX, 502 "BC_%d : Unsupported Async Event, flags" 503 " = 0x%08x\n", compl->flags); 504 505 } else if (compl->flags & CQE_FLAGS_COMPLETED_MASK) { 506 status = be_mcc_compl_process(ctrl, compl); 507 atomic_dec(&phba->ctrl.mcc_obj.q.used); 508 } 509 be_mcc_compl_use(compl); 510 num++; 511 } 512 513 if (num) 514 hwi_ring_cq_db(phba, phba->ctrl.mcc_obj.cq.id, num, 1, 0); 515 516 spin_unlock_bh(&phba->ctrl.mcc_cq_lock); 517 return status; 518 } 519 520 /* 521 * be_mcc_wait_compl()- Wait for MBX completion 522 * @phba: driver private structure 523 * 524 * Wait till no more pending mcc requests are present 525 * 526 * return 527 * Success: 0 528 * Failure: Non-Zero 529 * 530 **/ 531 static int be_mcc_wait_compl(struct beiscsi_hba *phba) 532 { 533 int i, status; 534 for (i = 0; i < mcc_timeout; i++) { 535 if (beiscsi_error(phba)) 536 return -EIO; 537 538 status = beiscsi_process_mcc(phba); 539 if (status) 540 return status; 541 542 if (atomic_read(&phba->ctrl.mcc_obj.q.used) == 0) 543 break; 544 udelay(100); 545 } 546 if (i == mcc_timeout) { 547 beiscsi_log(phba, KERN_ERR, 548 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 549 "BC_%d : FW Timed Out\n"); 550 phba->fw_timeout = true; 551 beiscsi_ue_detect(phba); 552 return -EBUSY; 553 } 554 return 0; 555 } 556 557 /* 558 * be_mcc_notify_wait()- Notify and wait for Compl 559 * @phba: driver private structure 560 * 561 * Notify MCC requests and wait for completion 562 * 563 * return 564 * Success: 0 565 * Failure: Non-Zero 566 **/ 567 int be_mcc_notify_wait(struct beiscsi_hba *phba) 568 { 569 be_mcc_notify(phba); 570 return be_mcc_wait_compl(phba); 571 } 572 573 /* 574 * be_mbox_db_ready_wait()- Check ready status 575 * @ctrl: Function specific MBX data structure 576 * 577 * Check for the ready status of FW to send BMBX 578 * commands to adapter. 579 * 580 * return 581 * Success: 0 582 * Failure: Non-Zero 583 **/ 584 static int be_mbox_db_ready_wait(struct be_ctrl_info *ctrl) 585 { 586 #define BEISCSI_MBX_RDY_BIT_TIMEOUT 4000 /* 4sec */ 587 void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET; 588 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 589 unsigned long timeout; 590 bool read_flag = false; 591 int ret = 0, i; 592 u32 ready; 593 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(rdybit_check_q); 594 595 if (beiscsi_error(phba)) 596 return -EIO; 597 598 timeout = jiffies + (HZ * 110); 599 600 do { 601 for (i = 0; i < BEISCSI_MBX_RDY_BIT_TIMEOUT; i++) { 602 ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK; 603 if (ready) { 604 read_flag = true; 605 break; 606 } 607 mdelay(1); 608 } 609 610 if (!read_flag) { 611 wait_event_timeout(rdybit_check_q, 612 (read_flag != true), 613 HZ * 5); 614 } 615 } while ((time_before(jiffies, timeout)) && !read_flag); 616 617 if (!read_flag) { 618 beiscsi_log(phba, KERN_ERR, 619 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 620 "BC_%d : FW Timed Out\n"); 621 phba->fw_timeout = true; 622 beiscsi_ue_detect(phba); 623 ret = -EBUSY; 624 } 625 626 return ret; 627 } 628 629 /* 630 * be_mbox_notify: Notify adapter of new BMBX command 631 * @ctrl: Function specific MBX data structure 632 * 633 * Ring doorbell to inform adapter of a BMBX command 634 * to process 635 * 636 * return 637 * Success: 0 638 * Failure: Non-Zero 639 **/ 640 int be_mbox_notify(struct be_ctrl_info *ctrl) 641 { 642 int status; 643 u32 val = 0; 644 void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET; 645 struct be_dma_mem *mbox_mem = &ctrl->mbox_mem; 646 struct be_mcc_mailbox *mbox = mbox_mem->va; 647 struct be_mcc_compl *compl = &mbox->compl; 648 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 649 650 status = be_mbox_db_ready_wait(ctrl); 651 if (status) 652 return status; 653 654 val &= ~MPU_MAILBOX_DB_RDY_MASK; 655 val |= MPU_MAILBOX_DB_HI_MASK; 656 val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2; 657 iowrite32(val, db); 658 659 status = be_mbox_db_ready_wait(ctrl); 660 if (status) 661 return status; 662 663 val = 0; 664 val &= ~MPU_MAILBOX_DB_RDY_MASK; 665 val &= ~MPU_MAILBOX_DB_HI_MASK; 666 val |= (u32) (mbox_mem->dma >> 4) << 2; 667 iowrite32(val, db); 668 669 status = be_mbox_db_ready_wait(ctrl); 670 if (status) 671 return status; 672 673 if (be_mcc_compl_is_new(compl)) { 674 status = be_mcc_compl_process(ctrl, &mbox->compl); 675 be_mcc_compl_use(compl); 676 if (status) { 677 beiscsi_log(phba, KERN_ERR, 678 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 679 "BC_%d : After be_mcc_compl_process\n"); 680 681 return status; 682 } 683 } else { 684 beiscsi_log(phba, KERN_ERR, 685 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 686 "BC_%d : Invalid Mailbox Completion\n"); 687 688 return -EBUSY; 689 } 690 return 0; 691 } 692 693 /* 694 * Insert the mailbox address into the doorbell in two steps 695 * Polls on the mbox doorbell till a command completion (or a timeout) occurs 696 */ 697 static int be_mbox_notify_wait(struct beiscsi_hba *phba) 698 { 699 int status; 700 u32 val = 0; 701 void __iomem *db = phba->ctrl.db + MPU_MAILBOX_DB_OFFSET; 702 struct be_dma_mem *mbox_mem = &phba->ctrl.mbox_mem; 703 struct be_mcc_mailbox *mbox = mbox_mem->va; 704 struct be_mcc_compl *compl = &mbox->compl; 705 struct be_ctrl_info *ctrl = &phba->ctrl; 706 707 status = be_mbox_db_ready_wait(ctrl); 708 if (status) 709 return status; 710 711 val |= MPU_MAILBOX_DB_HI_MASK; 712 /* at bits 2 - 31 place mbox dma addr msb bits 34 - 63 */ 713 val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2; 714 iowrite32(val, db); 715 716 /* wait for ready to be set */ 717 status = be_mbox_db_ready_wait(ctrl); 718 if (status != 0) 719 return status; 720 721 val = 0; 722 /* at bits 2 - 31 place mbox dma addr lsb bits 4 - 33 */ 723 val |= (u32)(mbox_mem->dma >> 4) << 2; 724 iowrite32(val, db); 725 726 status = be_mbox_db_ready_wait(ctrl); 727 if (status != 0) 728 return status; 729 730 /* A cq entry has been made now */ 731 if (be_mcc_compl_is_new(compl)) { 732 status = be_mcc_compl_process(ctrl, &mbox->compl); 733 be_mcc_compl_use(compl); 734 if (status) 735 return status; 736 } else { 737 beiscsi_log(phba, KERN_ERR, 738 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 739 "BC_%d : invalid mailbox completion\n"); 740 741 return -EBUSY; 742 } 743 return 0; 744 } 745 746 void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len, 747 bool embedded, u8 sge_cnt) 748 { 749 if (embedded) 750 wrb->embedded |= MCC_WRB_EMBEDDED_MASK; 751 else 752 wrb->embedded |= (sge_cnt & MCC_WRB_SGE_CNT_MASK) << 753 MCC_WRB_SGE_CNT_SHIFT; 754 wrb->payload_length = payload_len; 755 be_dws_cpu_to_le(wrb, 8); 756 } 757 758 void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr, 759 u8 subsystem, u8 opcode, int cmd_len) 760 { 761 req_hdr->opcode = opcode; 762 req_hdr->subsystem = subsystem; 763 req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr)); 764 req_hdr->timeout = BEISCSI_FW_MBX_TIMEOUT; 765 } 766 767 static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages, 768 struct be_dma_mem *mem) 769 { 770 int i, buf_pages; 771 u64 dma = (u64) mem->dma; 772 773 buf_pages = min(PAGES_4K_SPANNED(mem->va, mem->size), max_pages); 774 for (i = 0; i < buf_pages; i++) { 775 pages[i].lo = cpu_to_le32(dma & 0xFFFFFFFF); 776 pages[i].hi = cpu_to_le32(upper_32_bits(dma)); 777 dma += PAGE_SIZE_4K; 778 } 779 } 780 781 static u32 eq_delay_to_mult(u32 usec_delay) 782 { 783 #define MAX_INTR_RATE 651042 784 const u32 round = 10; 785 u32 multiplier; 786 787 if (usec_delay == 0) 788 multiplier = 0; 789 else { 790 u32 interrupt_rate = 1000000 / usec_delay; 791 if (interrupt_rate == 0) 792 multiplier = 1023; 793 else { 794 multiplier = (MAX_INTR_RATE - interrupt_rate) * round; 795 multiplier /= interrupt_rate; 796 multiplier = (multiplier + round / 2) / round; 797 multiplier = min(multiplier, (u32) 1023); 798 } 799 } 800 return multiplier; 801 } 802 803 struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem) 804 { 805 return &((struct be_mcc_mailbox *)(mbox_mem->va))->wrb; 806 } 807 808 struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba) 809 { 810 struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; 811 struct be_mcc_wrb *wrb; 812 813 WARN_ON(atomic_read(&mccq->used) >= mccq->len); 814 wrb = queue_head_node(mccq); 815 memset(wrb, 0, sizeof(*wrb)); 816 wrb->tag0 = (mccq->head & 0x000000FF) << 16; 817 queue_head_inc(mccq); 818 atomic_inc(&mccq->used); 819 return wrb; 820 } 821 822 823 int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl, 824 struct be_queue_info *eq, int eq_delay) 825 { 826 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 827 struct be_cmd_req_eq_create *req = embedded_payload(wrb); 828 struct be_cmd_resp_eq_create *resp = embedded_payload(wrb); 829 struct be_dma_mem *q_mem = &eq->dma_mem; 830 int status; 831 832 spin_lock(&ctrl->mbox_lock); 833 memset(wrb, 0, sizeof(*wrb)); 834 835 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 836 837 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 838 OPCODE_COMMON_EQ_CREATE, sizeof(*req)); 839 840 req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size)); 841 842 AMAP_SET_BITS(struct amap_eq_context, func, req->context, 843 PCI_FUNC(ctrl->pdev->devfn)); 844 AMAP_SET_BITS(struct amap_eq_context, valid, req->context, 1); 845 AMAP_SET_BITS(struct amap_eq_context, size, req->context, 0); 846 AMAP_SET_BITS(struct amap_eq_context, count, req->context, 847 __ilog2_u32(eq->len / 256)); 848 AMAP_SET_BITS(struct amap_eq_context, delaymult, req->context, 849 eq_delay_to_mult(eq_delay)); 850 be_dws_cpu_to_le(req->context, sizeof(req->context)); 851 852 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 853 854 status = be_mbox_notify(ctrl); 855 if (!status) { 856 eq->id = le16_to_cpu(resp->eq_id); 857 eq->created = true; 858 } 859 spin_unlock(&ctrl->mbox_lock); 860 return status; 861 } 862 863 /** 864 * be_cmd_fw_initialize()- Initialize FW 865 * @ctrl: Pointer to function control structure 866 * 867 * Send FW initialize pattern for the function. 868 * 869 * return 870 * Success: 0 871 * Failure: Non-Zero value 872 **/ 873 int be_cmd_fw_initialize(struct be_ctrl_info *ctrl) 874 { 875 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 876 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 877 int status; 878 u8 *endian_check; 879 880 spin_lock(&ctrl->mbox_lock); 881 memset(wrb, 0, sizeof(*wrb)); 882 883 endian_check = (u8 *) wrb; 884 *endian_check++ = 0xFF; 885 *endian_check++ = 0x12; 886 *endian_check++ = 0x34; 887 *endian_check++ = 0xFF; 888 *endian_check++ = 0xFF; 889 *endian_check++ = 0x56; 890 *endian_check++ = 0x78; 891 *endian_check++ = 0xFF; 892 be_dws_cpu_to_le(wrb, sizeof(*wrb)); 893 894 status = be_mbox_notify(ctrl); 895 if (status) 896 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 897 "BC_%d : be_cmd_fw_initialize Failed\n"); 898 899 spin_unlock(&ctrl->mbox_lock); 900 return status; 901 } 902 903 /** 904 * be_cmd_fw_uninit()- Uinitialize FW 905 * @ctrl: Pointer to function control structure 906 * 907 * Send FW uninitialize pattern for the function 908 * 909 * return 910 * Success: 0 911 * Failure: Non-Zero value 912 **/ 913 int be_cmd_fw_uninit(struct be_ctrl_info *ctrl) 914 { 915 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 916 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 917 int status; 918 u8 *endian_check; 919 920 spin_lock(&ctrl->mbox_lock); 921 memset(wrb, 0, sizeof(*wrb)); 922 923 endian_check = (u8 *) wrb; 924 *endian_check++ = 0xFF; 925 *endian_check++ = 0xAA; 926 *endian_check++ = 0xBB; 927 *endian_check++ = 0xFF; 928 *endian_check++ = 0xFF; 929 *endian_check++ = 0xCC; 930 *endian_check++ = 0xDD; 931 *endian_check = 0xFF; 932 933 be_dws_cpu_to_le(wrb, sizeof(*wrb)); 934 935 status = be_mbox_notify(ctrl); 936 if (status) 937 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 938 "BC_%d : be_cmd_fw_uninit Failed\n"); 939 940 spin_unlock(&ctrl->mbox_lock); 941 return status; 942 } 943 944 int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl, 945 struct be_queue_info *cq, struct be_queue_info *eq, 946 bool sol_evts, bool no_delay, int coalesce_wm) 947 { 948 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 949 struct be_cmd_req_cq_create *req = embedded_payload(wrb); 950 struct be_cmd_resp_cq_create *resp = embedded_payload(wrb); 951 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 952 struct be_dma_mem *q_mem = &cq->dma_mem; 953 void *ctxt = &req->context; 954 int status; 955 956 spin_lock(&ctrl->mbox_lock); 957 memset(wrb, 0, sizeof(*wrb)); 958 959 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 960 961 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 962 OPCODE_COMMON_CQ_CREATE, sizeof(*req)); 963 964 req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size)); 965 if (is_chip_be2_be3r(phba)) { 966 AMAP_SET_BITS(struct amap_cq_context, coalescwm, 967 ctxt, coalesce_wm); 968 AMAP_SET_BITS(struct amap_cq_context, nodelay, ctxt, no_delay); 969 AMAP_SET_BITS(struct amap_cq_context, count, ctxt, 970 __ilog2_u32(cq->len / 256)); 971 AMAP_SET_BITS(struct amap_cq_context, valid, ctxt, 1); 972 AMAP_SET_BITS(struct amap_cq_context, solevent, ctxt, sol_evts); 973 AMAP_SET_BITS(struct amap_cq_context, eventable, ctxt, 1); 974 AMAP_SET_BITS(struct amap_cq_context, eqid, ctxt, eq->id); 975 AMAP_SET_BITS(struct amap_cq_context, armed, ctxt, 1); 976 AMAP_SET_BITS(struct amap_cq_context, func, ctxt, 977 PCI_FUNC(ctrl->pdev->devfn)); 978 } else { 979 req->hdr.version = MBX_CMD_VER2; 980 req->page_size = 1; 981 AMAP_SET_BITS(struct amap_cq_context_v2, coalescwm, 982 ctxt, coalesce_wm); 983 AMAP_SET_BITS(struct amap_cq_context_v2, nodelay, 984 ctxt, no_delay); 985 AMAP_SET_BITS(struct amap_cq_context_v2, count, ctxt, 986 __ilog2_u32(cq->len / 256)); 987 AMAP_SET_BITS(struct amap_cq_context_v2, valid, ctxt, 1); 988 AMAP_SET_BITS(struct amap_cq_context_v2, eventable, ctxt, 1); 989 AMAP_SET_BITS(struct amap_cq_context_v2, eqid, ctxt, eq->id); 990 AMAP_SET_BITS(struct amap_cq_context_v2, armed, ctxt, 1); 991 } 992 993 be_dws_cpu_to_le(ctxt, sizeof(req->context)); 994 995 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 996 997 status = be_mbox_notify(ctrl); 998 if (!status) { 999 cq->id = le16_to_cpu(resp->cq_id); 1000 cq->created = true; 1001 } else 1002 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 1003 "BC_%d : In be_cmd_cq_create, status=ox%08x\n", 1004 status); 1005 1006 spin_unlock(&ctrl->mbox_lock); 1007 1008 return status; 1009 } 1010 1011 static u32 be_encoded_q_len(int q_len) 1012 { 1013 u32 len_encoded = fls(q_len); /* log2(len) + 1 */ 1014 if (len_encoded == 16) 1015 len_encoded = 0; 1016 return len_encoded; 1017 } 1018 1019 int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba, 1020 struct be_queue_info *mccq, 1021 struct be_queue_info *cq) 1022 { 1023 struct be_mcc_wrb *wrb; 1024 struct be_cmd_req_mcc_create *req; 1025 struct be_dma_mem *q_mem = &mccq->dma_mem; 1026 struct be_ctrl_info *ctrl; 1027 void *ctxt; 1028 int status; 1029 1030 spin_lock(&phba->ctrl.mbox_lock); 1031 ctrl = &phba->ctrl; 1032 wrb = wrb_from_mbox(&ctrl->mbox_mem); 1033 memset(wrb, 0, sizeof(*wrb)); 1034 req = embedded_payload(wrb); 1035 ctxt = &req->context; 1036 1037 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1038 1039 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 1040 OPCODE_COMMON_MCC_CREATE, sizeof(*req)); 1041 1042 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); 1043 1044 AMAP_SET_BITS(struct amap_mcc_context, fid, ctxt, 1045 PCI_FUNC(phba->pcidev->devfn)); 1046 AMAP_SET_BITS(struct amap_mcc_context, valid, ctxt, 1); 1047 AMAP_SET_BITS(struct amap_mcc_context, ring_size, ctxt, 1048 be_encoded_q_len(mccq->len)); 1049 AMAP_SET_BITS(struct amap_mcc_context, cq_id, ctxt, cq->id); 1050 1051 be_dws_cpu_to_le(ctxt, sizeof(req->context)); 1052 1053 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1054 1055 status = be_mbox_notify_wait(phba); 1056 if (!status) { 1057 struct be_cmd_resp_mcc_create *resp = embedded_payload(wrb); 1058 mccq->id = le16_to_cpu(resp->id); 1059 mccq->created = true; 1060 } 1061 spin_unlock(&phba->ctrl.mbox_lock); 1062 1063 return status; 1064 } 1065 1066 int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q, 1067 int queue_type) 1068 { 1069 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1070 struct be_cmd_req_q_destroy *req = embedded_payload(wrb); 1071 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 1072 u8 subsys = 0, opcode = 0; 1073 int status; 1074 1075 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 1076 "BC_%d : In beiscsi_cmd_q_destroy " 1077 "queue_type : %d\n", queue_type); 1078 1079 spin_lock(&ctrl->mbox_lock); 1080 memset(wrb, 0, sizeof(*wrb)); 1081 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1082 1083 switch (queue_type) { 1084 case QTYPE_EQ: 1085 subsys = CMD_SUBSYSTEM_COMMON; 1086 opcode = OPCODE_COMMON_EQ_DESTROY; 1087 break; 1088 case QTYPE_CQ: 1089 subsys = CMD_SUBSYSTEM_COMMON; 1090 opcode = OPCODE_COMMON_CQ_DESTROY; 1091 break; 1092 case QTYPE_MCCQ: 1093 subsys = CMD_SUBSYSTEM_COMMON; 1094 opcode = OPCODE_COMMON_MCC_DESTROY; 1095 break; 1096 case QTYPE_WRBQ: 1097 subsys = CMD_SUBSYSTEM_ISCSI; 1098 opcode = OPCODE_COMMON_ISCSI_WRBQ_DESTROY; 1099 break; 1100 case QTYPE_DPDUQ: 1101 subsys = CMD_SUBSYSTEM_ISCSI; 1102 opcode = OPCODE_COMMON_ISCSI_DEFQ_DESTROY; 1103 break; 1104 case QTYPE_SGL: 1105 subsys = CMD_SUBSYSTEM_ISCSI; 1106 opcode = OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES; 1107 break; 1108 default: 1109 spin_unlock(&ctrl->mbox_lock); 1110 BUG(); 1111 return -ENXIO; 1112 } 1113 be_cmd_hdr_prepare(&req->hdr, subsys, opcode, sizeof(*req)); 1114 if (queue_type != QTYPE_SGL) 1115 req->id = cpu_to_le16(q->id); 1116 1117 status = be_mbox_notify(ctrl); 1118 1119 spin_unlock(&ctrl->mbox_lock); 1120 return status; 1121 } 1122 1123 /** 1124 * be_cmd_create_default_pdu_queue()- Create DEFQ for the adapter 1125 * @ctrl: ptr to ctrl_info 1126 * @cq: Completion Queue 1127 * @dq: Default Queue 1128 * @lenght: ring size 1129 * @entry_size: size of each entry in DEFQ 1130 * @is_header: Header or Data DEFQ 1131 * @ulp_num: Bind to which ULP 1132 * 1133 * Create HDR/Data DEFQ for the passed ULP. Unsol PDU are posted 1134 * on this queue by the FW 1135 * 1136 * return 1137 * Success: 0 1138 * Failure: Non-Zero Value 1139 * 1140 **/ 1141 int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl, 1142 struct be_queue_info *cq, 1143 struct be_queue_info *dq, int length, 1144 int entry_size, uint8_t is_header, 1145 uint8_t ulp_num) 1146 { 1147 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1148 struct be_defq_create_req *req = embedded_payload(wrb); 1149 struct be_dma_mem *q_mem = &dq->dma_mem; 1150 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 1151 void *ctxt = &req->context; 1152 int status; 1153 1154 spin_lock(&ctrl->mbox_lock); 1155 memset(wrb, 0, sizeof(*wrb)); 1156 1157 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1158 1159 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, 1160 OPCODE_COMMON_ISCSI_DEFQ_CREATE, sizeof(*req)); 1161 1162 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); 1163 if (phba->fw_config.dual_ulp_aware) { 1164 req->ulp_num = ulp_num; 1165 req->dua_feature |= (1 << BEISCSI_DUAL_ULP_AWARE_BIT); 1166 req->dua_feature |= (1 << BEISCSI_BIND_Q_TO_ULP_BIT); 1167 } 1168 1169 if (is_chip_be2_be3r(phba)) { 1170 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1171 rx_pdid, ctxt, 0); 1172 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1173 rx_pdid_valid, ctxt, 1); 1174 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1175 pci_func_id, ctxt, PCI_FUNC(ctrl->pdev->devfn)); 1176 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1177 ring_size, ctxt, 1178 be_encoded_q_len(length / 1179 sizeof(struct phys_addr))); 1180 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1181 default_buffer_size, ctxt, entry_size); 1182 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1183 cq_id_recv, ctxt, cq->id); 1184 } else { 1185 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1186 rx_pdid, ctxt, 0); 1187 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1188 rx_pdid_valid, ctxt, 1); 1189 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1190 ring_size, ctxt, 1191 be_encoded_q_len(length / 1192 sizeof(struct phys_addr))); 1193 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1194 default_buffer_size, ctxt, entry_size); 1195 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1196 cq_id_recv, ctxt, cq->id); 1197 } 1198 1199 be_dws_cpu_to_le(ctxt, sizeof(req->context)); 1200 1201 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1202 1203 status = be_mbox_notify(ctrl); 1204 if (!status) { 1205 struct be_ring *defq_ring; 1206 struct be_defq_create_resp *resp = embedded_payload(wrb); 1207 1208 dq->id = le16_to_cpu(resp->id); 1209 dq->created = true; 1210 if (is_header) 1211 defq_ring = &phba->phwi_ctrlr->default_pdu_hdr[ulp_num]; 1212 else 1213 defq_ring = &phba->phwi_ctrlr-> 1214 default_pdu_data[ulp_num]; 1215 1216 defq_ring->id = dq->id; 1217 1218 if (!phba->fw_config.dual_ulp_aware) { 1219 defq_ring->ulp_num = BEISCSI_ULP0; 1220 defq_ring->doorbell_offset = DB_RXULP0_OFFSET; 1221 } else { 1222 defq_ring->ulp_num = resp->ulp_num; 1223 defq_ring->doorbell_offset = resp->doorbell_offset; 1224 } 1225 } 1226 spin_unlock(&ctrl->mbox_lock); 1227 1228 return status; 1229 } 1230 1231 /** 1232 * be_cmd_wrbq_create()- Create WRBQ 1233 * @ctrl: ptr to ctrl_info 1234 * @q_mem: memory details for the queue 1235 * @wrbq: queue info 1236 * @pwrb_context: ptr to wrb_context 1237 * @ulp_num: ULP on which the WRBQ is to be created 1238 * 1239 * Create WRBQ on the passed ULP_NUM. 1240 * 1241 **/ 1242 int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, 1243 struct be_dma_mem *q_mem, 1244 struct be_queue_info *wrbq, 1245 struct hwi_wrb_context *pwrb_context, 1246 uint8_t ulp_num) 1247 { 1248 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1249 struct be_wrbq_create_req *req = embedded_payload(wrb); 1250 struct be_wrbq_create_resp *resp = embedded_payload(wrb); 1251 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 1252 int status; 1253 1254 spin_lock(&ctrl->mbox_lock); 1255 memset(wrb, 0, sizeof(*wrb)); 1256 1257 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1258 1259 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, 1260 OPCODE_COMMON_ISCSI_WRBQ_CREATE, sizeof(*req)); 1261 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); 1262 1263 if (phba->fw_config.dual_ulp_aware) { 1264 req->ulp_num = ulp_num; 1265 req->dua_feature |= (1 << BEISCSI_DUAL_ULP_AWARE_BIT); 1266 req->dua_feature |= (1 << BEISCSI_BIND_Q_TO_ULP_BIT); 1267 } 1268 1269 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1270 1271 status = be_mbox_notify(ctrl); 1272 if (!status) { 1273 wrbq->id = le16_to_cpu(resp->cid); 1274 wrbq->created = true; 1275 1276 pwrb_context->cid = wrbq->id; 1277 if (!phba->fw_config.dual_ulp_aware) { 1278 pwrb_context->doorbell_offset = DB_TXULP0_OFFSET; 1279 pwrb_context->ulp_num = BEISCSI_ULP0; 1280 } else { 1281 pwrb_context->ulp_num = resp->ulp_num; 1282 pwrb_context->doorbell_offset = resp->doorbell_offset; 1283 } 1284 } 1285 spin_unlock(&ctrl->mbox_lock); 1286 return status; 1287 } 1288 1289 int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl, 1290 struct be_dma_mem *q_mem) 1291 { 1292 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1293 struct be_post_template_pages_req *req = embedded_payload(wrb); 1294 int status; 1295 1296 spin_lock(&ctrl->mbox_lock); 1297 1298 memset(wrb, 0, sizeof(*wrb)); 1299 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1300 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 1301 OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS, 1302 sizeof(*req)); 1303 1304 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); 1305 req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI; 1306 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1307 1308 status = be_mbox_notify(ctrl); 1309 spin_unlock(&ctrl->mbox_lock); 1310 return status; 1311 } 1312 1313 int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl) 1314 { 1315 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1316 struct be_remove_template_pages_req *req = embedded_payload(wrb); 1317 int status; 1318 1319 spin_lock(&ctrl->mbox_lock); 1320 1321 memset(wrb, 0, sizeof(*wrb)); 1322 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1323 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 1324 OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS, 1325 sizeof(*req)); 1326 1327 req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI; 1328 1329 status = be_mbox_notify(ctrl); 1330 spin_unlock(&ctrl->mbox_lock); 1331 return status; 1332 } 1333 1334 int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl, 1335 struct be_dma_mem *q_mem, 1336 u32 page_offset, u32 num_pages) 1337 { 1338 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1339 struct be_post_sgl_pages_req *req = embedded_payload(wrb); 1340 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 1341 int status; 1342 unsigned int curr_pages; 1343 u32 internal_page_offset = 0; 1344 u32 temp_num_pages = num_pages; 1345 1346 if (num_pages == 0xff) 1347 num_pages = 1; 1348 1349 spin_lock(&ctrl->mbox_lock); 1350 do { 1351 memset(wrb, 0, sizeof(*wrb)); 1352 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1353 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, 1354 OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES, 1355 sizeof(*req)); 1356 curr_pages = BE_NUMBER_OF_FIELD(struct be_post_sgl_pages_req, 1357 pages); 1358 req->num_pages = min(num_pages, curr_pages); 1359 req->page_offset = page_offset; 1360 be_cmd_page_addrs_prepare(req->pages, req->num_pages, q_mem); 1361 q_mem->dma = q_mem->dma + (req->num_pages * PAGE_SIZE); 1362 internal_page_offset += req->num_pages; 1363 page_offset += req->num_pages; 1364 num_pages -= req->num_pages; 1365 1366 if (temp_num_pages == 0xff) 1367 req->num_pages = temp_num_pages; 1368 1369 status = be_mbox_notify(ctrl); 1370 if (status) { 1371 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 1372 "BC_%d : FW CMD to map iscsi frags failed.\n"); 1373 1374 goto error; 1375 } 1376 } while (num_pages > 0); 1377 error: 1378 spin_unlock(&ctrl->mbox_lock); 1379 if (status != 0) 1380 beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 1381 return status; 1382 } 1383 1384 int beiscsi_cmd_reset_function(struct beiscsi_hba *phba) 1385 { 1386 struct be_ctrl_info *ctrl = &phba->ctrl; 1387 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1388 struct be_post_sgl_pages_req *req = embedded_payload(wrb); 1389 int status; 1390 1391 spin_lock(&ctrl->mbox_lock); 1392 1393 req = embedded_payload(wrb); 1394 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1395 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 1396 OPCODE_COMMON_FUNCTION_RESET, sizeof(*req)); 1397 status = be_mbox_notify_wait(phba); 1398 1399 spin_unlock(&ctrl->mbox_lock); 1400 return status; 1401 } 1402 1403 /** 1404 * be_cmd_set_vlan()- Configure VLAN paramters on the adapter 1405 * @phba: device priv structure instance 1406 * @vlan_tag: TAG to be set 1407 * 1408 * Set the VLAN_TAG for the adapter or Disable VLAN on adapter 1409 * 1410 * returns 1411 * TAG for the MBX Cmd 1412 * **/ 1413 int be_cmd_set_vlan(struct beiscsi_hba *phba, 1414 uint16_t vlan_tag) 1415 { 1416 unsigned int tag = 0; 1417 struct be_mcc_wrb *wrb; 1418 struct be_cmd_set_vlan_req *req; 1419 struct be_ctrl_info *ctrl = &phba->ctrl; 1420 1421 spin_lock(&ctrl->mbox_lock); 1422 tag = alloc_mcc_tag(phba); 1423 if (!tag) { 1424 spin_unlock(&ctrl->mbox_lock); 1425 return tag; 1426 } 1427 1428 wrb = wrb_from_mccq(phba); 1429 req = embedded_payload(wrb); 1430 wrb->tag0 |= tag; 1431 be_wrb_hdr_prepare(wrb, sizeof(*wrb), true, 0); 1432 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, 1433 OPCODE_COMMON_ISCSI_NTWK_SET_VLAN, 1434 sizeof(*req)); 1435 1436 req->interface_hndl = phba->interface_handle; 1437 req->vlan_priority = vlan_tag; 1438 1439 be_mcc_notify(phba); 1440 spin_unlock(&ctrl->mbox_lock); 1441 1442 return tag; 1443 } 1444