1 /** 2 * Copyright (C) 2005 - 2015 Avago Technologies 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@avagotech.com 12 * 13 * Avago Technologies 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 phba->get_boot = BE_GET_BOOT_RETRIES; 456 457 beiscsi_log(phba, KERN_ERR, 458 BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT, 459 "BC_%d : Link UP on Port %d\n", 460 evt->physical_port); 461 } 462 } 463 464 int beiscsi_process_mcc(struct beiscsi_hba *phba) 465 { 466 struct be_mcc_compl *compl; 467 int num = 0, status = 0; 468 struct be_ctrl_info *ctrl = &phba->ctrl; 469 470 spin_lock_bh(&phba->ctrl.mcc_cq_lock); 471 while ((compl = be_mcc_compl_get(phba))) { 472 if (compl->flags & CQE_FLAGS_ASYNC_MASK) { 473 /* Interpret flags as an async trailer */ 474 if (is_link_state_evt(compl->flags)) 475 /* Interpret compl as a async link evt */ 476 beiscsi_async_link_state_process(phba, 477 (struct be_async_event_link_state *) compl); 478 else if (is_iscsi_evt(compl->flags)) { 479 switch (iscsi_evt_type(compl->flags)) { 480 case ASYNC_EVENT_NEW_ISCSI_TGT_DISC: 481 case ASYNC_EVENT_NEW_ISCSI_CONN: 482 case ASYNC_EVENT_NEW_TCP_CONN: 483 phba->state |= BE_ADAPTER_CHECK_BOOT; 484 phba->get_boot = BE_GET_BOOT_RETRIES; 485 beiscsi_log(phba, KERN_ERR, 486 BEISCSI_LOG_CONFIG | 487 BEISCSI_LOG_MBOX, 488 "BC_%d : Async iscsi Event," 489 " flags handled = 0x%08x\n", 490 compl->flags); 491 break; 492 default: 493 phba->state |= BE_ADAPTER_CHECK_BOOT; 494 phba->get_boot = BE_GET_BOOT_RETRIES; 495 beiscsi_log(phba, KERN_ERR, 496 BEISCSI_LOG_CONFIG | 497 BEISCSI_LOG_MBOX, 498 "BC_%d : Unsupported Async" 499 " Event, flags = 0x%08x\n", 500 compl->flags); 501 } 502 } else 503 beiscsi_log(phba, KERN_ERR, 504 BEISCSI_LOG_CONFIG | 505 BEISCSI_LOG_MBOX, 506 "BC_%d : Unsupported Async Event, flags" 507 " = 0x%08x\n", compl->flags); 508 509 } else if (compl->flags & CQE_FLAGS_COMPLETED_MASK) { 510 status = be_mcc_compl_process(ctrl, compl); 511 atomic_dec(&phba->ctrl.mcc_obj.q.used); 512 } 513 be_mcc_compl_use(compl); 514 num++; 515 } 516 517 if (num) 518 hwi_ring_cq_db(phba, phba->ctrl.mcc_obj.cq.id, num, 1, 0); 519 520 spin_unlock_bh(&phba->ctrl.mcc_cq_lock); 521 return status; 522 } 523 524 /* 525 * be_mcc_wait_compl()- Wait for MBX completion 526 * @phba: driver private structure 527 * 528 * Wait till no more pending mcc requests are present 529 * 530 * return 531 * Success: 0 532 * Failure: Non-Zero 533 * 534 **/ 535 static int be_mcc_wait_compl(struct beiscsi_hba *phba) 536 { 537 int i, status; 538 for (i = 0; i < mcc_timeout; i++) { 539 if (beiscsi_error(phba)) 540 return -EIO; 541 542 status = beiscsi_process_mcc(phba); 543 if (status) 544 return status; 545 546 if (atomic_read(&phba->ctrl.mcc_obj.q.used) == 0) 547 break; 548 udelay(100); 549 } 550 if (i == mcc_timeout) { 551 beiscsi_log(phba, KERN_ERR, 552 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 553 "BC_%d : FW Timed Out\n"); 554 phba->fw_timeout = true; 555 beiscsi_ue_detect(phba); 556 return -EBUSY; 557 } 558 return 0; 559 } 560 561 /* 562 * be_mcc_notify_wait()- Notify and wait for Compl 563 * @phba: driver private structure 564 * 565 * Notify MCC requests and wait for completion 566 * 567 * return 568 * Success: 0 569 * Failure: Non-Zero 570 **/ 571 int be_mcc_notify_wait(struct beiscsi_hba *phba) 572 { 573 be_mcc_notify(phba); 574 return be_mcc_wait_compl(phba); 575 } 576 577 /* 578 * be_mbox_db_ready_wait()- Check ready status 579 * @ctrl: Function specific MBX data structure 580 * 581 * Check for the ready status of FW to send BMBX 582 * commands to adapter. 583 * 584 * return 585 * Success: 0 586 * Failure: Non-Zero 587 **/ 588 static int be_mbox_db_ready_wait(struct be_ctrl_info *ctrl) 589 { 590 #define BEISCSI_MBX_RDY_BIT_TIMEOUT 4000 /* 4sec */ 591 void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET; 592 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 593 unsigned long timeout; 594 bool read_flag = false; 595 int ret = 0, i; 596 u32 ready; 597 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(rdybit_check_q); 598 599 if (beiscsi_error(phba)) 600 return -EIO; 601 602 timeout = jiffies + (HZ * 110); 603 604 do { 605 for (i = 0; i < BEISCSI_MBX_RDY_BIT_TIMEOUT; i++) { 606 ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK; 607 if (ready) { 608 read_flag = true; 609 break; 610 } 611 mdelay(1); 612 } 613 614 if (!read_flag) { 615 wait_event_timeout(rdybit_check_q, 616 (read_flag != true), 617 HZ * 5); 618 } 619 } while ((time_before(jiffies, timeout)) && !read_flag); 620 621 if (!read_flag) { 622 beiscsi_log(phba, KERN_ERR, 623 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 624 "BC_%d : FW Timed Out\n"); 625 phba->fw_timeout = true; 626 beiscsi_ue_detect(phba); 627 ret = -EBUSY; 628 } 629 630 return ret; 631 } 632 633 /* 634 * be_mbox_notify: Notify adapter of new BMBX command 635 * @ctrl: Function specific MBX data structure 636 * 637 * Ring doorbell to inform adapter of a BMBX command 638 * to process 639 * 640 * return 641 * Success: 0 642 * Failure: Non-Zero 643 **/ 644 int be_mbox_notify(struct be_ctrl_info *ctrl) 645 { 646 int status; 647 u32 val = 0; 648 void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET; 649 struct be_dma_mem *mbox_mem = &ctrl->mbox_mem; 650 struct be_mcc_mailbox *mbox = mbox_mem->va; 651 struct be_mcc_compl *compl = &mbox->compl; 652 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 653 654 status = be_mbox_db_ready_wait(ctrl); 655 if (status) 656 return status; 657 658 val &= ~MPU_MAILBOX_DB_RDY_MASK; 659 val |= MPU_MAILBOX_DB_HI_MASK; 660 val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2; 661 iowrite32(val, db); 662 663 status = be_mbox_db_ready_wait(ctrl); 664 if (status) 665 return status; 666 667 val = 0; 668 val &= ~MPU_MAILBOX_DB_RDY_MASK; 669 val &= ~MPU_MAILBOX_DB_HI_MASK; 670 val |= (u32) (mbox_mem->dma >> 4) << 2; 671 iowrite32(val, db); 672 673 status = be_mbox_db_ready_wait(ctrl); 674 if (status) 675 return status; 676 677 if (be_mcc_compl_is_new(compl)) { 678 status = be_mcc_compl_process(ctrl, &mbox->compl); 679 be_mcc_compl_use(compl); 680 if (status) { 681 beiscsi_log(phba, KERN_ERR, 682 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 683 "BC_%d : After be_mcc_compl_process\n"); 684 685 return status; 686 } 687 } else { 688 beiscsi_log(phba, KERN_ERR, 689 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 690 "BC_%d : Invalid Mailbox Completion\n"); 691 692 return -EBUSY; 693 } 694 return 0; 695 } 696 697 /* 698 * Insert the mailbox address into the doorbell in two steps 699 * Polls on the mbox doorbell till a command completion (or a timeout) occurs 700 */ 701 static int be_mbox_notify_wait(struct beiscsi_hba *phba) 702 { 703 int status; 704 u32 val = 0; 705 void __iomem *db = phba->ctrl.db + MPU_MAILBOX_DB_OFFSET; 706 struct be_dma_mem *mbox_mem = &phba->ctrl.mbox_mem; 707 struct be_mcc_mailbox *mbox = mbox_mem->va; 708 struct be_mcc_compl *compl = &mbox->compl; 709 struct be_ctrl_info *ctrl = &phba->ctrl; 710 711 status = be_mbox_db_ready_wait(ctrl); 712 if (status) 713 return status; 714 715 val |= MPU_MAILBOX_DB_HI_MASK; 716 /* at bits 2 - 31 place mbox dma addr msb bits 34 - 63 */ 717 val |= (upper_32_bits(mbox_mem->dma) >> 2) << 2; 718 iowrite32(val, db); 719 720 /* wait for ready to be set */ 721 status = be_mbox_db_ready_wait(ctrl); 722 if (status != 0) 723 return status; 724 725 val = 0; 726 /* at bits 2 - 31 place mbox dma addr lsb bits 4 - 33 */ 727 val |= (u32)(mbox_mem->dma >> 4) << 2; 728 iowrite32(val, db); 729 730 status = be_mbox_db_ready_wait(ctrl); 731 if (status != 0) 732 return status; 733 734 /* A cq entry has been made now */ 735 if (be_mcc_compl_is_new(compl)) { 736 status = be_mcc_compl_process(ctrl, &mbox->compl); 737 be_mcc_compl_use(compl); 738 if (status) 739 return status; 740 } else { 741 beiscsi_log(phba, KERN_ERR, 742 BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX, 743 "BC_%d : invalid mailbox completion\n"); 744 745 return -EBUSY; 746 } 747 return 0; 748 } 749 750 void be_wrb_hdr_prepare(struct be_mcc_wrb *wrb, int payload_len, 751 bool embedded, u8 sge_cnt) 752 { 753 if (embedded) 754 wrb->embedded |= MCC_WRB_EMBEDDED_MASK; 755 else 756 wrb->embedded |= (sge_cnt & MCC_WRB_SGE_CNT_MASK) << 757 MCC_WRB_SGE_CNT_SHIFT; 758 wrb->payload_length = payload_len; 759 be_dws_cpu_to_le(wrb, 8); 760 } 761 762 void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr, 763 u8 subsystem, u8 opcode, int cmd_len) 764 { 765 req_hdr->opcode = opcode; 766 req_hdr->subsystem = subsystem; 767 req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr)); 768 req_hdr->timeout = BEISCSI_FW_MBX_TIMEOUT; 769 } 770 771 static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages, 772 struct be_dma_mem *mem) 773 { 774 int i, buf_pages; 775 u64 dma = (u64) mem->dma; 776 777 buf_pages = min(PAGES_4K_SPANNED(mem->va, mem->size), max_pages); 778 for (i = 0; i < buf_pages; i++) { 779 pages[i].lo = cpu_to_le32(dma & 0xFFFFFFFF); 780 pages[i].hi = cpu_to_le32(upper_32_bits(dma)); 781 dma += PAGE_SIZE_4K; 782 } 783 } 784 785 static u32 eq_delay_to_mult(u32 usec_delay) 786 { 787 #define MAX_INTR_RATE 651042 788 const u32 round = 10; 789 u32 multiplier; 790 791 if (usec_delay == 0) 792 multiplier = 0; 793 else { 794 u32 interrupt_rate = 1000000 / usec_delay; 795 if (interrupt_rate == 0) 796 multiplier = 1023; 797 else { 798 multiplier = (MAX_INTR_RATE - interrupt_rate) * round; 799 multiplier /= interrupt_rate; 800 multiplier = (multiplier + round / 2) / round; 801 multiplier = min(multiplier, (u32) 1023); 802 } 803 } 804 return multiplier; 805 } 806 807 struct be_mcc_wrb *wrb_from_mbox(struct be_dma_mem *mbox_mem) 808 { 809 return &((struct be_mcc_mailbox *)(mbox_mem->va))->wrb; 810 } 811 812 struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba) 813 { 814 struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; 815 struct be_mcc_wrb *wrb; 816 817 WARN_ON(atomic_read(&mccq->used) >= mccq->len); 818 wrb = queue_head_node(mccq); 819 memset(wrb, 0, sizeof(*wrb)); 820 wrb->tag0 = (mccq->head & 0x000000FF) << 16; 821 queue_head_inc(mccq); 822 atomic_inc(&mccq->used); 823 return wrb; 824 } 825 826 827 int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl, 828 struct be_queue_info *eq, int eq_delay) 829 { 830 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 831 struct be_cmd_req_eq_create *req = embedded_payload(wrb); 832 struct be_cmd_resp_eq_create *resp = embedded_payload(wrb); 833 struct be_dma_mem *q_mem = &eq->dma_mem; 834 int status; 835 836 spin_lock(&ctrl->mbox_lock); 837 memset(wrb, 0, sizeof(*wrb)); 838 839 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 840 841 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 842 OPCODE_COMMON_EQ_CREATE, sizeof(*req)); 843 844 req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size)); 845 846 AMAP_SET_BITS(struct amap_eq_context, func, req->context, 847 PCI_FUNC(ctrl->pdev->devfn)); 848 AMAP_SET_BITS(struct amap_eq_context, valid, req->context, 1); 849 AMAP_SET_BITS(struct amap_eq_context, size, req->context, 0); 850 AMAP_SET_BITS(struct amap_eq_context, count, req->context, 851 __ilog2_u32(eq->len / 256)); 852 AMAP_SET_BITS(struct amap_eq_context, delaymult, req->context, 853 eq_delay_to_mult(eq_delay)); 854 be_dws_cpu_to_le(req->context, sizeof(req->context)); 855 856 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 857 858 status = be_mbox_notify(ctrl); 859 if (!status) { 860 eq->id = le16_to_cpu(resp->eq_id); 861 eq->created = true; 862 } 863 spin_unlock(&ctrl->mbox_lock); 864 return status; 865 } 866 867 /** 868 * be_cmd_fw_initialize()- Initialize FW 869 * @ctrl: Pointer to function control structure 870 * 871 * Send FW initialize pattern for the function. 872 * 873 * return 874 * Success: 0 875 * Failure: Non-Zero value 876 **/ 877 int be_cmd_fw_initialize(struct be_ctrl_info *ctrl) 878 { 879 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 880 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 881 int status; 882 u8 *endian_check; 883 884 spin_lock(&ctrl->mbox_lock); 885 memset(wrb, 0, sizeof(*wrb)); 886 887 endian_check = (u8 *) wrb; 888 *endian_check++ = 0xFF; 889 *endian_check++ = 0x12; 890 *endian_check++ = 0x34; 891 *endian_check++ = 0xFF; 892 *endian_check++ = 0xFF; 893 *endian_check++ = 0x56; 894 *endian_check++ = 0x78; 895 *endian_check++ = 0xFF; 896 be_dws_cpu_to_le(wrb, sizeof(*wrb)); 897 898 status = be_mbox_notify(ctrl); 899 if (status) 900 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 901 "BC_%d : be_cmd_fw_initialize Failed\n"); 902 903 spin_unlock(&ctrl->mbox_lock); 904 return status; 905 } 906 907 /** 908 * be_cmd_fw_uninit()- Uinitialize FW 909 * @ctrl: Pointer to function control structure 910 * 911 * Send FW uninitialize pattern for the function 912 * 913 * return 914 * Success: 0 915 * Failure: Non-Zero value 916 **/ 917 int be_cmd_fw_uninit(struct be_ctrl_info *ctrl) 918 { 919 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 920 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 921 int status; 922 u8 *endian_check; 923 924 spin_lock(&ctrl->mbox_lock); 925 memset(wrb, 0, sizeof(*wrb)); 926 927 endian_check = (u8 *) wrb; 928 *endian_check++ = 0xFF; 929 *endian_check++ = 0xAA; 930 *endian_check++ = 0xBB; 931 *endian_check++ = 0xFF; 932 *endian_check++ = 0xFF; 933 *endian_check++ = 0xCC; 934 *endian_check++ = 0xDD; 935 *endian_check = 0xFF; 936 937 be_dws_cpu_to_le(wrb, sizeof(*wrb)); 938 939 status = be_mbox_notify(ctrl); 940 if (status) 941 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 942 "BC_%d : be_cmd_fw_uninit Failed\n"); 943 944 spin_unlock(&ctrl->mbox_lock); 945 return status; 946 } 947 948 int beiscsi_cmd_cq_create(struct be_ctrl_info *ctrl, 949 struct be_queue_info *cq, struct be_queue_info *eq, 950 bool sol_evts, bool no_delay, int coalesce_wm) 951 { 952 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 953 struct be_cmd_req_cq_create *req = embedded_payload(wrb); 954 struct be_cmd_resp_cq_create *resp = embedded_payload(wrb); 955 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 956 struct be_dma_mem *q_mem = &cq->dma_mem; 957 void *ctxt = &req->context; 958 int status; 959 960 spin_lock(&ctrl->mbox_lock); 961 memset(wrb, 0, sizeof(*wrb)); 962 963 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 964 965 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 966 OPCODE_COMMON_CQ_CREATE, sizeof(*req)); 967 968 req->num_pages = cpu_to_le16(PAGES_4K_SPANNED(q_mem->va, q_mem->size)); 969 if (is_chip_be2_be3r(phba)) { 970 AMAP_SET_BITS(struct amap_cq_context, coalescwm, 971 ctxt, coalesce_wm); 972 AMAP_SET_BITS(struct amap_cq_context, nodelay, ctxt, no_delay); 973 AMAP_SET_BITS(struct amap_cq_context, count, ctxt, 974 __ilog2_u32(cq->len / 256)); 975 AMAP_SET_BITS(struct amap_cq_context, valid, ctxt, 1); 976 AMAP_SET_BITS(struct amap_cq_context, solevent, ctxt, sol_evts); 977 AMAP_SET_BITS(struct amap_cq_context, eventable, ctxt, 1); 978 AMAP_SET_BITS(struct amap_cq_context, eqid, ctxt, eq->id); 979 AMAP_SET_BITS(struct amap_cq_context, armed, ctxt, 1); 980 AMAP_SET_BITS(struct amap_cq_context, func, ctxt, 981 PCI_FUNC(ctrl->pdev->devfn)); 982 } else { 983 req->hdr.version = MBX_CMD_VER2; 984 req->page_size = 1; 985 AMAP_SET_BITS(struct amap_cq_context_v2, coalescwm, 986 ctxt, coalesce_wm); 987 AMAP_SET_BITS(struct amap_cq_context_v2, nodelay, 988 ctxt, no_delay); 989 AMAP_SET_BITS(struct amap_cq_context_v2, count, ctxt, 990 __ilog2_u32(cq->len / 256)); 991 AMAP_SET_BITS(struct amap_cq_context_v2, valid, ctxt, 1); 992 AMAP_SET_BITS(struct amap_cq_context_v2, eventable, ctxt, 1); 993 AMAP_SET_BITS(struct amap_cq_context_v2, eqid, ctxt, eq->id); 994 AMAP_SET_BITS(struct amap_cq_context_v2, armed, ctxt, 1); 995 } 996 997 be_dws_cpu_to_le(ctxt, sizeof(req->context)); 998 999 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1000 1001 status = be_mbox_notify(ctrl); 1002 if (!status) { 1003 cq->id = le16_to_cpu(resp->cq_id); 1004 cq->created = true; 1005 } else 1006 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 1007 "BC_%d : In be_cmd_cq_create, status=ox%08x\n", 1008 status); 1009 1010 spin_unlock(&ctrl->mbox_lock); 1011 1012 return status; 1013 } 1014 1015 static u32 be_encoded_q_len(int q_len) 1016 { 1017 u32 len_encoded = fls(q_len); /* log2(len) + 1 */ 1018 if (len_encoded == 16) 1019 len_encoded = 0; 1020 return len_encoded; 1021 } 1022 1023 int beiscsi_cmd_mccq_create(struct beiscsi_hba *phba, 1024 struct be_queue_info *mccq, 1025 struct be_queue_info *cq) 1026 { 1027 struct be_mcc_wrb *wrb; 1028 struct be_cmd_req_mcc_create *req; 1029 struct be_dma_mem *q_mem = &mccq->dma_mem; 1030 struct be_ctrl_info *ctrl; 1031 void *ctxt; 1032 int status; 1033 1034 spin_lock(&phba->ctrl.mbox_lock); 1035 ctrl = &phba->ctrl; 1036 wrb = wrb_from_mbox(&ctrl->mbox_mem); 1037 memset(wrb, 0, sizeof(*wrb)); 1038 req = embedded_payload(wrb); 1039 ctxt = &req->context; 1040 1041 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1042 1043 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 1044 OPCODE_COMMON_MCC_CREATE, sizeof(*req)); 1045 1046 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); 1047 1048 AMAP_SET_BITS(struct amap_mcc_context, fid, ctxt, 1049 PCI_FUNC(phba->pcidev->devfn)); 1050 AMAP_SET_BITS(struct amap_mcc_context, valid, ctxt, 1); 1051 AMAP_SET_BITS(struct amap_mcc_context, ring_size, ctxt, 1052 be_encoded_q_len(mccq->len)); 1053 AMAP_SET_BITS(struct amap_mcc_context, cq_id, ctxt, cq->id); 1054 1055 be_dws_cpu_to_le(ctxt, sizeof(req->context)); 1056 1057 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1058 1059 status = be_mbox_notify_wait(phba); 1060 if (!status) { 1061 struct be_cmd_resp_mcc_create *resp = embedded_payload(wrb); 1062 mccq->id = le16_to_cpu(resp->id); 1063 mccq->created = true; 1064 } 1065 spin_unlock(&phba->ctrl.mbox_lock); 1066 1067 return status; 1068 } 1069 1070 int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q, 1071 int queue_type) 1072 { 1073 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1074 struct be_cmd_req_q_destroy *req = embedded_payload(wrb); 1075 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 1076 u8 subsys = 0, opcode = 0; 1077 int status; 1078 1079 beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT, 1080 "BC_%d : In beiscsi_cmd_q_destroy " 1081 "queue_type : %d\n", queue_type); 1082 1083 spin_lock(&ctrl->mbox_lock); 1084 memset(wrb, 0, sizeof(*wrb)); 1085 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1086 1087 switch (queue_type) { 1088 case QTYPE_EQ: 1089 subsys = CMD_SUBSYSTEM_COMMON; 1090 opcode = OPCODE_COMMON_EQ_DESTROY; 1091 break; 1092 case QTYPE_CQ: 1093 subsys = CMD_SUBSYSTEM_COMMON; 1094 opcode = OPCODE_COMMON_CQ_DESTROY; 1095 break; 1096 case QTYPE_MCCQ: 1097 subsys = CMD_SUBSYSTEM_COMMON; 1098 opcode = OPCODE_COMMON_MCC_DESTROY; 1099 break; 1100 case QTYPE_WRBQ: 1101 subsys = CMD_SUBSYSTEM_ISCSI; 1102 opcode = OPCODE_COMMON_ISCSI_WRBQ_DESTROY; 1103 break; 1104 case QTYPE_DPDUQ: 1105 subsys = CMD_SUBSYSTEM_ISCSI; 1106 opcode = OPCODE_COMMON_ISCSI_DEFQ_DESTROY; 1107 break; 1108 case QTYPE_SGL: 1109 subsys = CMD_SUBSYSTEM_ISCSI; 1110 opcode = OPCODE_COMMON_ISCSI_CFG_REMOVE_SGL_PAGES; 1111 break; 1112 default: 1113 spin_unlock(&ctrl->mbox_lock); 1114 BUG(); 1115 return -ENXIO; 1116 } 1117 be_cmd_hdr_prepare(&req->hdr, subsys, opcode, sizeof(*req)); 1118 if (queue_type != QTYPE_SGL) 1119 req->id = cpu_to_le16(q->id); 1120 1121 status = be_mbox_notify(ctrl); 1122 1123 spin_unlock(&ctrl->mbox_lock); 1124 return status; 1125 } 1126 1127 /** 1128 * be_cmd_create_default_pdu_queue()- Create DEFQ for the adapter 1129 * @ctrl: ptr to ctrl_info 1130 * @cq: Completion Queue 1131 * @dq: Default Queue 1132 * @lenght: ring size 1133 * @entry_size: size of each entry in DEFQ 1134 * @is_header: Header or Data DEFQ 1135 * @ulp_num: Bind to which ULP 1136 * 1137 * Create HDR/Data DEFQ for the passed ULP. Unsol PDU are posted 1138 * on this queue by the FW 1139 * 1140 * return 1141 * Success: 0 1142 * Failure: Non-Zero Value 1143 * 1144 **/ 1145 int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl, 1146 struct be_queue_info *cq, 1147 struct be_queue_info *dq, int length, 1148 int entry_size, uint8_t is_header, 1149 uint8_t ulp_num) 1150 { 1151 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1152 struct be_defq_create_req *req = embedded_payload(wrb); 1153 struct be_dma_mem *q_mem = &dq->dma_mem; 1154 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 1155 void *ctxt = &req->context; 1156 int status; 1157 1158 spin_lock(&ctrl->mbox_lock); 1159 memset(wrb, 0, sizeof(*wrb)); 1160 1161 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1162 1163 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, 1164 OPCODE_COMMON_ISCSI_DEFQ_CREATE, sizeof(*req)); 1165 1166 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); 1167 if (phba->fw_config.dual_ulp_aware) { 1168 req->ulp_num = ulp_num; 1169 req->dua_feature |= (1 << BEISCSI_DUAL_ULP_AWARE_BIT); 1170 req->dua_feature |= (1 << BEISCSI_BIND_Q_TO_ULP_BIT); 1171 } 1172 1173 if (is_chip_be2_be3r(phba)) { 1174 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1175 rx_pdid, ctxt, 0); 1176 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1177 rx_pdid_valid, ctxt, 1); 1178 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1179 pci_func_id, ctxt, PCI_FUNC(ctrl->pdev->devfn)); 1180 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1181 ring_size, ctxt, 1182 be_encoded_q_len(length / 1183 sizeof(struct phys_addr))); 1184 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1185 default_buffer_size, ctxt, entry_size); 1186 AMAP_SET_BITS(struct amap_be_default_pdu_context, 1187 cq_id_recv, ctxt, cq->id); 1188 } else { 1189 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1190 rx_pdid, ctxt, 0); 1191 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1192 rx_pdid_valid, ctxt, 1); 1193 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1194 ring_size, ctxt, 1195 be_encoded_q_len(length / 1196 sizeof(struct phys_addr))); 1197 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1198 default_buffer_size, ctxt, entry_size); 1199 AMAP_SET_BITS(struct amap_default_pdu_context_ext, 1200 cq_id_recv, ctxt, cq->id); 1201 } 1202 1203 be_dws_cpu_to_le(ctxt, sizeof(req->context)); 1204 1205 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1206 1207 status = be_mbox_notify(ctrl); 1208 if (!status) { 1209 struct be_ring *defq_ring; 1210 struct be_defq_create_resp *resp = embedded_payload(wrb); 1211 1212 dq->id = le16_to_cpu(resp->id); 1213 dq->created = true; 1214 if (is_header) 1215 defq_ring = &phba->phwi_ctrlr->default_pdu_hdr[ulp_num]; 1216 else 1217 defq_ring = &phba->phwi_ctrlr-> 1218 default_pdu_data[ulp_num]; 1219 1220 defq_ring->id = dq->id; 1221 1222 if (!phba->fw_config.dual_ulp_aware) { 1223 defq_ring->ulp_num = BEISCSI_ULP0; 1224 defq_ring->doorbell_offset = DB_RXULP0_OFFSET; 1225 } else { 1226 defq_ring->ulp_num = resp->ulp_num; 1227 defq_ring->doorbell_offset = resp->doorbell_offset; 1228 } 1229 } 1230 spin_unlock(&ctrl->mbox_lock); 1231 1232 return status; 1233 } 1234 1235 /** 1236 * be_cmd_wrbq_create()- Create WRBQ 1237 * @ctrl: ptr to ctrl_info 1238 * @q_mem: memory details for the queue 1239 * @wrbq: queue info 1240 * @pwrb_context: ptr to wrb_context 1241 * @ulp_num: ULP on which the WRBQ is to be created 1242 * 1243 * Create WRBQ on the passed ULP_NUM. 1244 * 1245 **/ 1246 int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, 1247 struct be_dma_mem *q_mem, 1248 struct be_queue_info *wrbq, 1249 struct hwi_wrb_context *pwrb_context, 1250 uint8_t ulp_num) 1251 { 1252 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1253 struct be_wrbq_create_req *req = embedded_payload(wrb); 1254 struct be_wrbq_create_resp *resp = embedded_payload(wrb); 1255 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 1256 int status; 1257 1258 spin_lock(&ctrl->mbox_lock); 1259 memset(wrb, 0, sizeof(*wrb)); 1260 1261 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1262 1263 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, 1264 OPCODE_COMMON_ISCSI_WRBQ_CREATE, sizeof(*req)); 1265 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); 1266 1267 if (phba->fw_config.dual_ulp_aware) { 1268 req->ulp_num = ulp_num; 1269 req->dua_feature |= (1 << BEISCSI_DUAL_ULP_AWARE_BIT); 1270 req->dua_feature |= (1 << BEISCSI_BIND_Q_TO_ULP_BIT); 1271 } 1272 1273 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1274 1275 status = be_mbox_notify(ctrl); 1276 if (!status) { 1277 wrbq->id = le16_to_cpu(resp->cid); 1278 wrbq->created = true; 1279 1280 pwrb_context->cid = wrbq->id; 1281 if (!phba->fw_config.dual_ulp_aware) { 1282 pwrb_context->doorbell_offset = DB_TXULP0_OFFSET; 1283 pwrb_context->ulp_num = BEISCSI_ULP0; 1284 } else { 1285 pwrb_context->ulp_num = resp->ulp_num; 1286 pwrb_context->doorbell_offset = resp->doorbell_offset; 1287 } 1288 } 1289 spin_unlock(&ctrl->mbox_lock); 1290 return status; 1291 } 1292 1293 int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl, 1294 struct be_dma_mem *q_mem) 1295 { 1296 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1297 struct be_post_template_pages_req *req = embedded_payload(wrb); 1298 int status; 1299 1300 spin_lock(&ctrl->mbox_lock); 1301 1302 memset(wrb, 0, sizeof(*wrb)); 1303 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1304 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 1305 OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS, 1306 sizeof(*req)); 1307 1308 req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size); 1309 req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI; 1310 be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem); 1311 1312 status = be_mbox_notify(ctrl); 1313 spin_unlock(&ctrl->mbox_lock); 1314 return status; 1315 } 1316 1317 int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl) 1318 { 1319 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1320 struct be_remove_template_pages_req *req = embedded_payload(wrb); 1321 int status; 1322 1323 spin_lock(&ctrl->mbox_lock); 1324 1325 memset(wrb, 0, sizeof(*wrb)); 1326 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1327 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 1328 OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS, 1329 sizeof(*req)); 1330 1331 req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI; 1332 1333 status = be_mbox_notify(ctrl); 1334 spin_unlock(&ctrl->mbox_lock); 1335 return status; 1336 } 1337 1338 int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl, 1339 struct be_dma_mem *q_mem, 1340 u32 page_offset, u32 num_pages) 1341 { 1342 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1343 struct be_post_sgl_pages_req *req = embedded_payload(wrb); 1344 struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev); 1345 int status; 1346 unsigned int curr_pages; 1347 u32 internal_page_offset = 0; 1348 u32 temp_num_pages = num_pages; 1349 1350 if (num_pages == 0xff) 1351 num_pages = 1; 1352 1353 spin_lock(&ctrl->mbox_lock); 1354 do { 1355 memset(wrb, 0, sizeof(*wrb)); 1356 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1357 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, 1358 OPCODE_COMMON_ISCSI_CFG_POST_SGL_PAGES, 1359 sizeof(*req)); 1360 curr_pages = BE_NUMBER_OF_FIELD(struct be_post_sgl_pages_req, 1361 pages); 1362 req->num_pages = min(num_pages, curr_pages); 1363 req->page_offset = page_offset; 1364 be_cmd_page_addrs_prepare(req->pages, req->num_pages, q_mem); 1365 q_mem->dma = q_mem->dma + (req->num_pages * PAGE_SIZE); 1366 internal_page_offset += req->num_pages; 1367 page_offset += req->num_pages; 1368 num_pages -= req->num_pages; 1369 1370 if (temp_num_pages == 0xff) 1371 req->num_pages = temp_num_pages; 1372 1373 status = be_mbox_notify(ctrl); 1374 if (status) { 1375 beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT, 1376 "BC_%d : FW CMD to map iscsi frags failed.\n"); 1377 1378 goto error; 1379 } 1380 } while (num_pages > 0); 1381 error: 1382 spin_unlock(&ctrl->mbox_lock); 1383 if (status != 0) 1384 beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL); 1385 return status; 1386 } 1387 1388 int beiscsi_cmd_reset_function(struct beiscsi_hba *phba) 1389 { 1390 struct be_ctrl_info *ctrl = &phba->ctrl; 1391 struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem); 1392 struct be_post_sgl_pages_req *req = embedded_payload(wrb); 1393 int status; 1394 1395 spin_lock(&ctrl->mbox_lock); 1396 1397 req = embedded_payload(wrb); 1398 be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); 1399 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, 1400 OPCODE_COMMON_FUNCTION_RESET, sizeof(*req)); 1401 status = be_mbox_notify_wait(phba); 1402 1403 spin_unlock(&ctrl->mbox_lock); 1404 return status; 1405 } 1406 1407 /** 1408 * be_cmd_set_vlan()- Configure VLAN paramters on the adapter 1409 * @phba: device priv structure instance 1410 * @vlan_tag: TAG to be set 1411 * 1412 * Set the VLAN_TAG for the adapter or Disable VLAN on adapter 1413 * 1414 * returns 1415 * TAG for the MBX Cmd 1416 * **/ 1417 int be_cmd_set_vlan(struct beiscsi_hba *phba, 1418 uint16_t vlan_tag) 1419 { 1420 unsigned int tag = 0; 1421 struct be_mcc_wrb *wrb; 1422 struct be_cmd_set_vlan_req *req; 1423 struct be_ctrl_info *ctrl = &phba->ctrl; 1424 1425 spin_lock(&ctrl->mbox_lock); 1426 tag = alloc_mcc_tag(phba); 1427 if (!tag) { 1428 spin_unlock(&ctrl->mbox_lock); 1429 return tag; 1430 } 1431 1432 wrb = wrb_from_mccq(phba); 1433 req = embedded_payload(wrb); 1434 wrb->tag0 |= tag; 1435 be_wrb_hdr_prepare(wrb, sizeof(*wrb), true, 0); 1436 be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI, 1437 OPCODE_COMMON_ISCSI_NTWK_SET_VLAN, 1438 sizeof(*req)); 1439 1440 req->interface_hndl = phba->interface_handle; 1441 req->vlan_priority = vlan_tag; 1442 1443 be_mcc_notify(phba); 1444 spin_unlock(&ctrl->mbox_lock); 1445 1446 return tag; 1447 } 1448