1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2021 Broadcom. All Rights Reserved. The term 4 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries. 5 */ 6 7 /** 8 * All common (i.e. transport-independent) SLI-4 functions are implemented 9 * in this file. 10 */ 11 #include "sli4.h" 12 13 static struct sli4_asic_entry_t sli4_asic_table[] = { 14 { SLI4_ASIC_REV_B0, SLI4_ASIC_GEN_5}, 15 { SLI4_ASIC_REV_D0, SLI4_ASIC_GEN_5}, 16 { SLI4_ASIC_REV_A3, SLI4_ASIC_GEN_6}, 17 { SLI4_ASIC_REV_A0, SLI4_ASIC_GEN_6}, 18 { SLI4_ASIC_REV_A1, SLI4_ASIC_GEN_6}, 19 { SLI4_ASIC_REV_A3, SLI4_ASIC_GEN_6}, 20 { SLI4_ASIC_REV_A1, SLI4_ASIC_GEN_7}, 21 { SLI4_ASIC_REV_A0, SLI4_ASIC_GEN_7}, 22 }; 23 24 /* Convert queue type enum (SLI_QTYPE_*) into a string */ 25 static char *SLI4_QNAME[] = { 26 "Event Queue", 27 "Completion Queue", 28 "Mailbox Queue", 29 "Work Queue", 30 "Receive Queue", 31 "Undefined" 32 }; 33 34 /** 35 * sli_config_cmd_init() - Write a SLI_CONFIG command to the provided buffer. 36 * 37 * @sli4: SLI context pointer. 38 * @buf: Destination buffer for the command. 39 * @length: Length in bytes of attached command. 40 * @dma: DMA buffer for non-embedded commands. 41 * Return: Command payload buffer. 42 */ 43 static void * 44 sli_config_cmd_init(struct sli4 *sli4, void *buf, u32 length, 45 struct efc_dma *dma) 46 { 47 struct sli4_cmd_sli_config *config; 48 u32 flags; 49 50 if (length > sizeof(config->payload.embed) && !dma) { 51 efc_log_err(sli4, "Too big for an embedded cmd with len(%d)\n", 52 length); 53 return NULL; 54 } 55 56 memset(buf, 0, SLI4_BMBX_SIZE); 57 58 config = buf; 59 60 config->hdr.command = SLI4_MBX_CMD_SLI_CONFIG; 61 if (!dma) { 62 flags = SLI4_SLICONF_EMB; 63 config->dw1_flags = cpu_to_le32(flags); 64 config->payload_len = cpu_to_le32(length); 65 return config->payload.embed; 66 } 67 68 flags = SLI4_SLICONF_PMDCMD_VAL_1; 69 flags &= ~SLI4_SLICONF_EMB; 70 config->dw1_flags = cpu_to_le32(flags); 71 72 config->payload.mem.addr.low = cpu_to_le32(lower_32_bits(dma->phys)); 73 config->payload.mem.addr.high = cpu_to_le32(upper_32_bits(dma->phys)); 74 config->payload.mem.length = 75 cpu_to_le32(dma->size & SLI4_SLICONF_PMD_LEN); 76 config->payload_len = cpu_to_le32(dma->size); 77 /* save pointer to DMA for BMBX dumping purposes */ 78 sli4->bmbx_non_emb_pmd = dma; 79 return dma->virt; 80 } 81 82 /** 83 * sli_cmd_common_create_cq() - Write a COMMON_CREATE_CQ V2 command. 84 * 85 * @sli4: SLI context pointer. 86 * @buf: Destination buffer for the command. 87 * @qmem: DMA memory for queue. 88 * @eq_id: EQ id assosiated with this cq. 89 * Return: status -EIO/0. 90 */ 91 static int 92 sli_cmd_common_create_cq(struct sli4 *sli4, void *buf, struct efc_dma *qmem, 93 u16 eq_id) 94 { 95 struct sli4_rqst_cmn_create_cq_v2 *cqv2 = NULL; 96 u32 p; 97 uintptr_t addr; 98 u32 num_pages = 0; 99 size_t cmd_size = 0; 100 u32 page_size = 0; 101 u32 n_cqe = 0; 102 u32 dw5_flags = 0; 103 u16 dw6w1_arm = 0; 104 __le32 len; 105 106 /* First calculate number of pages and the mailbox cmd length */ 107 n_cqe = qmem->size / SLI4_CQE_BYTES; 108 switch (n_cqe) { 109 case 256: 110 case 512: 111 case 1024: 112 case 2048: 113 page_size = SZ_4K; 114 break; 115 case 4096: 116 page_size = SZ_8K; 117 break; 118 default: 119 return -EIO; 120 } 121 num_pages = sli_page_count(qmem->size, page_size); 122 123 cmd_size = SLI4_RQST_CMDSZ(cmn_create_cq_v2) 124 + SZ_DMAADDR * num_pages; 125 126 cqv2 = sli_config_cmd_init(sli4, buf, cmd_size, NULL); 127 if (!cqv2) 128 return -EIO; 129 130 len = SLI4_RQST_PYLD_LEN_VAR(cmn_create_cq_v2, SZ_DMAADDR * num_pages); 131 sli_cmd_fill_hdr(&cqv2->hdr, SLI4_CMN_CREATE_CQ, SLI4_SUBSYSTEM_COMMON, 132 CMD_V2, len); 133 cqv2->page_size = page_size / SLI_PAGE_SIZE; 134 135 /* valid values for number of pages: 1, 2, 4, 8 (sec 4.4.3) */ 136 cqv2->num_pages = cpu_to_le16(num_pages); 137 if (!num_pages || num_pages > SLI4_CREATE_CQV2_MAX_PAGES) 138 return -EIO; 139 140 switch (num_pages) { 141 case 1: 142 dw5_flags |= SLI4_CQ_CNT_VAL(256); 143 break; 144 case 2: 145 dw5_flags |= SLI4_CQ_CNT_VAL(512); 146 break; 147 case 4: 148 dw5_flags |= SLI4_CQ_CNT_VAL(1024); 149 break; 150 case 8: 151 dw5_flags |= SLI4_CQ_CNT_VAL(LARGE); 152 cqv2->cqe_count = cpu_to_le16(n_cqe); 153 break; 154 default: 155 efc_log_err(sli4, "num_pages %d not valid\n", num_pages); 156 return -EIO; 157 } 158 159 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 160 dw5_flags |= SLI4_CREATE_CQV2_AUTOVALID; 161 162 dw5_flags |= SLI4_CREATE_CQV2_EVT; 163 dw5_flags |= SLI4_CREATE_CQV2_VALID; 164 165 cqv2->dw5_flags = cpu_to_le32(dw5_flags); 166 cqv2->dw6w1_arm = cpu_to_le16(dw6w1_arm); 167 cqv2->eq_id = cpu_to_le16(eq_id); 168 169 for (p = 0, addr = qmem->phys; p < num_pages; p++, addr += page_size) { 170 cqv2->page_phys_addr[p].low = cpu_to_le32(lower_32_bits(addr)); 171 cqv2->page_phys_addr[p].high = cpu_to_le32(upper_32_bits(addr)); 172 } 173 174 return 0; 175 } 176 177 static int 178 sli_cmd_common_create_eq(struct sli4 *sli4, void *buf, struct efc_dma *qmem) 179 { 180 struct sli4_rqst_cmn_create_eq *eq; 181 u32 p; 182 uintptr_t addr; 183 u16 num_pages; 184 u32 dw5_flags = 0; 185 u32 dw6_flags = 0, ver; 186 187 eq = sli_config_cmd_init(sli4, buf, SLI4_CFG_PYLD_LENGTH(cmn_create_eq), 188 NULL); 189 if (!eq) 190 return -EIO; 191 192 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 193 ver = CMD_V2; 194 else 195 ver = CMD_V0; 196 197 sli_cmd_fill_hdr(&eq->hdr, SLI4_CMN_CREATE_EQ, SLI4_SUBSYSTEM_COMMON, 198 ver, SLI4_RQST_PYLD_LEN(cmn_create_eq)); 199 200 /* valid values for number of pages: 1, 2, 4 (sec 4.4.3) */ 201 num_pages = qmem->size / SLI_PAGE_SIZE; 202 eq->num_pages = cpu_to_le16(num_pages); 203 204 switch (num_pages) { 205 case 1: 206 dw5_flags |= SLI4_EQE_SIZE_4; 207 dw6_flags |= SLI4_EQ_CNT_VAL(1024); 208 break; 209 case 2: 210 dw5_flags |= SLI4_EQE_SIZE_4; 211 dw6_flags |= SLI4_EQ_CNT_VAL(2048); 212 break; 213 case 4: 214 dw5_flags |= SLI4_EQE_SIZE_4; 215 dw6_flags |= SLI4_EQ_CNT_VAL(4096); 216 break; 217 default: 218 efc_log_err(sli4, "num_pages %d not valid\n", num_pages); 219 return -EIO; 220 } 221 222 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 223 dw5_flags |= SLI4_CREATE_EQ_AUTOVALID; 224 225 dw5_flags |= SLI4_CREATE_EQ_VALID; 226 dw6_flags &= (~SLI4_CREATE_EQ_ARM); 227 eq->dw5_flags = cpu_to_le32(dw5_flags); 228 eq->dw6_flags = cpu_to_le32(dw6_flags); 229 eq->dw7_delaymulti = cpu_to_le32(SLI4_CREATE_EQ_DELAYMULTI); 230 231 for (p = 0, addr = qmem->phys; p < num_pages; 232 p++, addr += SLI_PAGE_SIZE) { 233 eq->page_address[p].low = cpu_to_le32(lower_32_bits(addr)); 234 eq->page_address[p].high = cpu_to_le32(upper_32_bits(addr)); 235 } 236 237 return 0; 238 } 239 240 static int 241 sli_cmd_common_create_mq_ext(struct sli4 *sli4, void *buf, struct efc_dma *qmem, 242 u16 cq_id) 243 { 244 struct sli4_rqst_cmn_create_mq_ext *mq; 245 u32 p; 246 uintptr_t addr; 247 u32 num_pages; 248 u16 dw6w1_flags = 0; 249 250 mq = sli_config_cmd_init(sli4, buf, 251 SLI4_CFG_PYLD_LENGTH(cmn_create_mq_ext), NULL); 252 if (!mq) 253 return -EIO; 254 255 sli_cmd_fill_hdr(&mq->hdr, SLI4_CMN_CREATE_MQ_EXT, 256 SLI4_SUBSYSTEM_COMMON, CMD_V0, 257 SLI4_RQST_PYLD_LEN(cmn_create_mq_ext)); 258 259 /* valid values for number of pages: 1, 2, 4, 8 (sec 4.4.12) */ 260 num_pages = qmem->size / SLI_PAGE_SIZE; 261 mq->num_pages = cpu_to_le16(num_pages); 262 switch (num_pages) { 263 case 1: 264 dw6w1_flags |= SLI4_MQE_SIZE_16; 265 break; 266 case 2: 267 dw6w1_flags |= SLI4_MQE_SIZE_32; 268 break; 269 case 4: 270 dw6w1_flags |= SLI4_MQE_SIZE_64; 271 break; 272 case 8: 273 dw6w1_flags |= SLI4_MQE_SIZE_128; 274 break; 275 default: 276 efc_log_info(sli4, "num_pages %d not valid\n", num_pages); 277 return -EIO; 278 } 279 280 mq->async_event_bitmap = cpu_to_le32(SLI4_ASYNC_EVT_FC_ALL); 281 282 if (sli4->params.mq_create_version) { 283 mq->cq_id_v1 = cpu_to_le16(cq_id); 284 mq->hdr.dw3_version = cpu_to_le32(CMD_V1); 285 } else { 286 dw6w1_flags |= (cq_id << SLI4_CREATE_MQEXT_CQID_SHIFT); 287 } 288 mq->dw7_val = cpu_to_le32(SLI4_CREATE_MQEXT_VAL); 289 290 mq->dw6w1_flags = cpu_to_le16(dw6w1_flags); 291 for (p = 0, addr = qmem->phys; p < num_pages; 292 p++, addr += SLI_PAGE_SIZE) { 293 mq->page_phys_addr[p].low = cpu_to_le32(lower_32_bits(addr)); 294 mq->page_phys_addr[p].high = cpu_to_le32(upper_32_bits(addr)); 295 } 296 297 return 0; 298 } 299 300 int 301 sli_cmd_wq_create(struct sli4 *sli4, void *buf, struct efc_dma *qmem, u16 cq_id) 302 { 303 struct sli4_rqst_wq_create *wq; 304 u32 p; 305 uintptr_t addr; 306 u32 page_size = 0; 307 u32 n_wqe = 0; 308 u16 num_pages; 309 310 wq = sli_config_cmd_init(sli4, buf, SLI4_CFG_PYLD_LENGTH(wq_create), 311 NULL); 312 if (!wq) 313 return -EIO; 314 315 sli_cmd_fill_hdr(&wq->hdr, SLI4_OPC_WQ_CREATE, SLI4_SUBSYSTEM_FC, 316 CMD_V1, SLI4_RQST_PYLD_LEN(wq_create)); 317 n_wqe = qmem->size / sli4->wqe_size; 318 319 switch (qmem->size) { 320 case 4096: 321 case 8192: 322 case 16384: 323 case 32768: 324 page_size = SZ_4K; 325 break; 326 case 65536: 327 page_size = SZ_8K; 328 break; 329 case 131072: 330 page_size = SZ_16K; 331 break; 332 case 262144: 333 page_size = SZ_32K; 334 break; 335 case 524288: 336 page_size = SZ_64K; 337 break; 338 default: 339 return -EIO; 340 } 341 342 /* valid values for number of pages(num_pages): 1-8 */ 343 num_pages = sli_page_count(qmem->size, page_size); 344 wq->num_pages = cpu_to_le16(num_pages); 345 if (!num_pages || num_pages > SLI4_WQ_CREATE_MAX_PAGES) 346 return -EIO; 347 348 wq->cq_id = cpu_to_le16(cq_id); 349 350 wq->page_size = page_size / SLI_PAGE_SIZE; 351 352 if (sli4->wqe_size == SLI4_WQE_EXT_BYTES) 353 wq->wqe_size_byte |= SLI4_WQE_EXT_SIZE; 354 else 355 wq->wqe_size_byte |= SLI4_WQE_SIZE; 356 357 wq->wqe_count = cpu_to_le16(n_wqe); 358 359 for (p = 0, addr = qmem->phys; p < num_pages; p++, addr += page_size) { 360 wq->page_phys_addr[p].low = cpu_to_le32(lower_32_bits(addr)); 361 wq->page_phys_addr[p].high = cpu_to_le32(upper_32_bits(addr)); 362 } 363 364 return 0; 365 } 366 367 static int 368 sli_cmd_rq_create_v1(struct sli4 *sli4, void *buf, struct efc_dma *qmem, 369 u16 cq_id, u16 buffer_size) 370 { 371 struct sli4_rqst_rq_create_v1 *rq; 372 u32 p; 373 uintptr_t addr; 374 u32 num_pages; 375 376 rq = sli_config_cmd_init(sli4, buf, SLI4_CFG_PYLD_LENGTH(rq_create_v1), 377 NULL); 378 if (!rq) 379 return -EIO; 380 381 sli_cmd_fill_hdr(&rq->hdr, SLI4_OPC_RQ_CREATE, SLI4_SUBSYSTEM_FC, 382 CMD_V1, SLI4_RQST_PYLD_LEN(rq_create_v1)); 383 /* Disable "no buffer warnings" to avoid Lancer bug */ 384 rq->dim_dfd_dnb |= SLI4_RQ_CREATE_V1_DNB; 385 386 /* valid values for number of pages: 1-8 (sec 4.5.6) */ 387 num_pages = sli_page_count(qmem->size, SLI_PAGE_SIZE); 388 rq->num_pages = cpu_to_le16(num_pages); 389 if (!num_pages || 390 num_pages > SLI4_RQ_CREATE_V1_MAX_PAGES) { 391 efc_log_info(sli4, "num_pages %d not valid, max %d\n", 392 num_pages, SLI4_RQ_CREATE_V1_MAX_PAGES); 393 return -EIO; 394 } 395 396 /* 397 * RQE count is the total number of entries (note not lg2(# entries)) 398 */ 399 rq->rqe_count = cpu_to_le16(qmem->size / SLI4_RQE_SIZE); 400 401 rq->rqe_size_byte |= SLI4_RQE_SIZE_8; 402 403 rq->page_size = SLI4_RQ_PAGE_SIZE_4096; 404 405 if (buffer_size < sli4->rq_min_buf_size || 406 buffer_size > sli4->rq_max_buf_size) { 407 efc_log_err(sli4, "buffer_size %d out of range (%d-%d)\n", 408 buffer_size, sli4->rq_min_buf_size, 409 sli4->rq_max_buf_size); 410 return -EIO; 411 } 412 rq->buffer_size = cpu_to_le32(buffer_size); 413 414 rq->cq_id = cpu_to_le16(cq_id); 415 416 for (p = 0, addr = qmem->phys; 417 p < num_pages; 418 p++, addr += SLI_PAGE_SIZE) { 419 rq->page_phys_addr[p].low = cpu_to_le32(lower_32_bits(addr)); 420 rq->page_phys_addr[p].high = cpu_to_le32(upper_32_bits(addr)); 421 } 422 423 return 0; 424 } 425 426 static int 427 sli_cmd_rq_create_v2(struct sli4 *sli4, u32 num_rqs, 428 struct sli4_queue *qs[], u32 base_cq_id, 429 u32 header_buffer_size, 430 u32 payload_buffer_size, struct efc_dma *dma) 431 { 432 struct sli4_rqst_rq_create_v2 *req = NULL; 433 u32 i, p, offset = 0; 434 u32 payload_size, page_count; 435 uintptr_t addr; 436 u32 num_pages; 437 __le32 len; 438 439 page_count = sli_page_count(qs[0]->dma.size, SLI_PAGE_SIZE) * num_rqs; 440 441 /* Payload length must accommodate both request and response */ 442 payload_size = max(SLI4_RQST_CMDSZ(rq_create_v2) + 443 SZ_DMAADDR * page_count, 444 sizeof(struct sli4_rsp_cmn_create_queue_set)); 445 446 dma->size = payload_size; 447 dma->virt = dma_alloc_coherent(&sli4->pci->dev, dma->size, 448 &dma->phys, GFP_DMA); 449 if (!dma->virt) 450 return -EIO; 451 452 memset(dma->virt, 0, payload_size); 453 454 req = sli_config_cmd_init(sli4, sli4->bmbx.virt, payload_size, dma); 455 if (!req) 456 return -EIO; 457 458 len = SLI4_RQST_PYLD_LEN_VAR(rq_create_v2, SZ_DMAADDR * page_count); 459 sli_cmd_fill_hdr(&req->hdr, SLI4_OPC_RQ_CREATE, SLI4_SUBSYSTEM_FC, 460 CMD_V2, len); 461 /* Fill Payload fields */ 462 req->dim_dfd_dnb |= SLI4_RQCREATEV2_DNB; 463 num_pages = sli_page_count(qs[0]->dma.size, SLI_PAGE_SIZE); 464 req->num_pages = cpu_to_le16(num_pages); 465 req->rqe_count = cpu_to_le16(qs[0]->dma.size / SLI4_RQE_SIZE); 466 req->rqe_size_byte |= SLI4_RQE_SIZE_8; 467 req->page_size = SLI4_RQ_PAGE_SIZE_4096; 468 req->rq_count = num_rqs; 469 req->base_cq_id = cpu_to_le16(base_cq_id); 470 req->hdr_buffer_size = cpu_to_le16(header_buffer_size); 471 req->payload_buffer_size = cpu_to_le16(payload_buffer_size); 472 473 for (i = 0; i < num_rqs; i++) { 474 for (p = 0, addr = qs[i]->dma.phys; p < num_pages; 475 p++, addr += SLI_PAGE_SIZE) { 476 req->page_phys_addr[offset].low = 477 cpu_to_le32(lower_32_bits(addr)); 478 req->page_phys_addr[offset].high = 479 cpu_to_le32(upper_32_bits(addr)); 480 offset++; 481 } 482 } 483 484 return 0; 485 } 486 487 static void 488 __sli_queue_destroy(struct sli4 *sli4, struct sli4_queue *q) 489 { 490 if (!q->dma.size) 491 return; 492 493 dma_free_coherent(&sli4->pci->dev, q->dma.size, 494 q->dma.virt, q->dma.phys); 495 memset(&q->dma, 0, sizeof(struct efc_dma)); 496 } 497 498 int 499 __sli_queue_init(struct sli4 *sli4, struct sli4_queue *q, u32 qtype, 500 size_t size, u32 n_entries, u32 align) 501 { 502 if (q->dma.virt) { 503 efc_log_err(sli4, "%s failed\n", __func__); 504 return -EIO; 505 } 506 507 memset(q, 0, sizeof(struct sli4_queue)); 508 509 q->dma.size = size * n_entries; 510 q->dma.virt = dma_alloc_coherent(&sli4->pci->dev, q->dma.size, 511 &q->dma.phys, GFP_DMA); 512 if (!q->dma.virt) { 513 memset(&q->dma, 0, sizeof(struct efc_dma)); 514 efc_log_err(sli4, "%s allocation failed\n", SLI4_QNAME[qtype]); 515 return -EIO; 516 } 517 518 memset(q->dma.virt, 0, size * n_entries); 519 520 spin_lock_init(&q->lock); 521 522 q->type = qtype; 523 q->size = size; 524 q->length = n_entries; 525 526 if (q->type == SLI4_QTYPE_EQ || q->type == SLI4_QTYPE_CQ) { 527 /* For prism, phase will be flipped after 528 * a sweep through eq and cq 529 */ 530 q->phase = 1; 531 } 532 533 /* Limit to hwf the queue size per interrupt */ 534 q->proc_limit = n_entries / 2; 535 536 if (q->type == SLI4_QTYPE_EQ) 537 q->posted_limit = q->length / 2; 538 else 539 q->posted_limit = 64; 540 541 return 0; 542 } 543 544 int 545 sli_fc_rq_alloc(struct sli4 *sli4, struct sli4_queue *q, 546 u32 n_entries, u32 buffer_size, 547 struct sli4_queue *cq, bool is_hdr) 548 { 549 if (__sli_queue_init(sli4, q, SLI4_QTYPE_RQ, SLI4_RQE_SIZE, 550 n_entries, SLI_PAGE_SIZE)) 551 return -EIO; 552 553 if (sli_cmd_rq_create_v1(sli4, sli4->bmbx.virt, &q->dma, cq->id, 554 buffer_size)) 555 goto error; 556 557 if (__sli_create_queue(sli4, q)) 558 goto error; 559 560 if (is_hdr && q->id & 1) { 561 efc_log_info(sli4, "bad header RQ_ID %d\n", q->id); 562 goto error; 563 } else if (!is_hdr && (q->id & 1) == 0) { 564 efc_log_info(sli4, "bad data RQ_ID %d\n", q->id); 565 goto error; 566 } 567 568 if (is_hdr) 569 q->u.flag |= SLI4_QUEUE_FLAG_HDR; 570 else 571 q->u.flag &= ~SLI4_QUEUE_FLAG_HDR; 572 573 return 0; 574 575 error: 576 __sli_queue_destroy(sli4, q); 577 return -EIO; 578 } 579 580 int 581 sli_fc_rq_set_alloc(struct sli4 *sli4, u32 num_rq_pairs, 582 struct sli4_queue *qs[], u32 base_cq_id, 583 u32 n_entries, u32 header_buffer_size, 584 u32 payload_buffer_size) 585 { 586 u32 i; 587 struct efc_dma dma = {0}; 588 struct sli4_rsp_cmn_create_queue_set *rsp = NULL; 589 void __iomem *db_regaddr = NULL; 590 u32 num_rqs = num_rq_pairs * 2; 591 592 for (i = 0; i < num_rqs; i++) { 593 if (__sli_queue_init(sli4, qs[i], SLI4_QTYPE_RQ, 594 SLI4_RQE_SIZE, n_entries, 595 SLI_PAGE_SIZE)) { 596 goto error; 597 } 598 } 599 600 if (sli_cmd_rq_create_v2(sli4, num_rqs, qs, base_cq_id, 601 header_buffer_size, payload_buffer_size, 602 &dma)) { 603 goto error; 604 } 605 606 if (sli_bmbx_command(sli4)) { 607 efc_log_err(sli4, "bootstrap mailbox write failed RQSet\n"); 608 goto error; 609 } 610 611 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 612 db_regaddr = sli4->reg[1] + SLI4_IF6_RQ_DB_REG; 613 else 614 db_regaddr = sli4->reg[0] + SLI4_RQ_DB_REG; 615 616 rsp = dma.virt; 617 if (rsp->hdr.status) { 618 efc_log_err(sli4, "bad create RQSet status=%#x addl=%#x\n", 619 rsp->hdr.status, rsp->hdr.additional_status); 620 goto error; 621 } 622 623 for (i = 0; i < num_rqs; i++) { 624 qs[i]->id = i + le16_to_cpu(rsp->q_id); 625 if ((qs[i]->id & 1) == 0) 626 qs[i]->u.flag |= SLI4_QUEUE_FLAG_HDR; 627 else 628 qs[i]->u.flag &= ~SLI4_QUEUE_FLAG_HDR; 629 630 qs[i]->db_regaddr = db_regaddr; 631 } 632 633 dma_free_coherent(&sli4->pci->dev, dma.size, dma.virt, dma.phys); 634 635 return 0; 636 637 error: 638 for (i = 0; i < num_rqs; i++) 639 __sli_queue_destroy(sli4, qs[i]); 640 641 if (dma.virt) 642 dma_free_coherent(&sli4->pci->dev, dma.size, dma.virt, 643 dma.phys); 644 645 return -EIO; 646 } 647 648 static int 649 sli_res_sli_config(struct sli4 *sli4, void *buf) 650 { 651 struct sli4_cmd_sli_config *sli_config = buf; 652 653 /* sanity check */ 654 if (!buf || sli_config->hdr.command != 655 SLI4_MBX_CMD_SLI_CONFIG) { 656 efc_log_err(sli4, "bad parameter buf=%p cmd=%#x\n", buf, 657 buf ? sli_config->hdr.command : -1); 658 return -EIO; 659 } 660 661 if (le16_to_cpu(sli_config->hdr.status)) 662 return le16_to_cpu(sli_config->hdr.status); 663 664 if (le32_to_cpu(sli_config->dw1_flags) & SLI4_SLICONF_EMB) 665 return sli_config->payload.embed[4]; 666 667 efc_log_info(sli4, "external buffers not supported\n"); 668 return -EIO; 669 } 670 671 int 672 __sli_create_queue(struct sli4 *sli4, struct sli4_queue *q) 673 { 674 struct sli4_rsp_cmn_create_queue *res_q = NULL; 675 676 if (sli_bmbx_command(sli4)) { 677 efc_log_crit(sli4, "bootstrap mailbox write fail %s\n", 678 SLI4_QNAME[q->type]); 679 return -EIO; 680 } 681 if (sli_res_sli_config(sli4, sli4->bmbx.virt)) { 682 efc_log_err(sli4, "bad status create %s\n", 683 SLI4_QNAME[q->type]); 684 return -EIO; 685 } 686 res_q = (void *)((u8 *)sli4->bmbx.virt + 687 offsetof(struct sli4_cmd_sli_config, payload)); 688 689 if (res_q->hdr.status) { 690 efc_log_err(sli4, "bad create %s status=%#x addl=%#x\n", 691 SLI4_QNAME[q->type], res_q->hdr.status, 692 res_q->hdr.additional_status); 693 return -EIO; 694 } 695 q->id = le16_to_cpu(res_q->q_id); 696 switch (q->type) { 697 case SLI4_QTYPE_EQ: 698 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 699 q->db_regaddr = sli4->reg[1] + SLI4_IF6_EQ_DB_REG; 700 else 701 q->db_regaddr = sli4->reg[0] + SLI4_EQCQ_DB_REG; 702 break; 703 case SLI4_QTYPE_CQ: 704 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 705 q->db_regaddr = sli4->reg[1] + SLI4_IF6_CQ_DB_REG; 706 else 707 q->db_regaddr = sli4->reg[0] + SLI4_EQCQ_DB_REG; 708 break; 709 case SLI4_QTYPE_MQ: 710 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 711 q->db_regaddr = sli4->reg[1] + SLI4_IF6_MQ_DB_REG; 712 else 713 q->db_regaddr = sli4->reg[0] + SLI4_MQ_DB_REG; 714 break; 715 case SLI4_QTYPE_RQ: 716 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 717 q->db_regaddr = sli4->reg[1] + SLI4_IF6_RQ_DB_REG; 718 else 719 q->db_regaddr = sli4->reg[0] + SLI4_RQ_DB_REG; 720 break; 721 case SLI4_QTYPE_WQ: 722 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 723 q->db_regaddr = sli4->reg[1] + SLI4_IF6_WQ_DB_REG; 724 else 725 q->db_regaddr = sli4->reg[0] + SLI4_IO_WQ_DB_REG; 726 break; 727 default: 728 break; 729 } 730 731 return 0; 732 } 733 734 int 735 sli_get_queue_entry_size(struct sli4 *sli4, u32 qtype) 736 { 737 u32 size = 0; 738 739 switch (qtype) { 740 case SLI4_QTYPE_EQ: 741 size = sizeof(u32); 742 break; 743 case SLI4_QTYPE_CQ: 744 size = 16; 745 break; 746 case SLI4_QTYPE_MQ: 747 size = 256; 748 break; 749 case SLI4_QTYPE_WQ: 750 size = sli4->wqe_size; 751 break; 752 case SLI4_QTYPE_RQ: 753 size = SLI4_RQE_SIZE; 754 break; 755 default: 756 efc_log_info(sli4, "unknown queue type %d\n", qtype); 757 return -1; 758 } 759 return size; 760 } 761 762 int 763 sli_queue_alloc(struct sli4 *sli4, u32 qtype, 764 struct sli4_queue *q, u32 n_entries, 765 struct sli4_queue *assoc) 766 { 767 int size; 768 u32 align = 0; 769 770 /* get queue size */ 771 size = sli_get_queue_entry_size(sli4, qtype); 772 if (size < 0) 773 return -EIO; 774 align = SLI_PAGE_SIZE; 775 776 if (__sli_queue_init(sli4, q, qtype, size, n_entries, align)) 777 return -EIO; 778 779 switch (qtype) { 780 case SLI4_QTYPE_EQ: 781 if (!sli_cmd_common_create_eq(sli4, sli4->bmbx.virt, &q->dma) && 782 !__sli_create_queue(sli4, q)) 783 return 0; 784 785 break; 786 case SLI4_QTYPE_CQ: 787 if (!sli_cmd_common_create_cq(sli4, sli4->bmbx.virt, &q->dma, 788 assoc ? assoc->id : 0) && 789 !__sli_create_queue(sli4, q)) 790 return 0; 791 792 break; 793 case SLI4_QTYPE_MQ: 794 assoc->u.flag |= SLI4_QUEUE_FLAG_MQ; 795 if (!sli_cmd_common_create_mq_ext(sli4, sli4->bmbx.virt, 796 &q->dma, assoc->id) && 797 !__sli_create_queue(sli4, q)) 798 return 0; 799 800 break; 801 case SLI4_QTYPE_WQ: 802 if (!sli_cmd_wq_create(sli4, sli4->bmbx.virt, &q->dma, 803 assoc ? assoc->id : 0) && 804 !__sli_create_queue(sli4, q)) 805 return 0; 806 807 break; 808 default: 809 efc_log_info(sli4, "unknown queue type %d\n", qtype); 810 } 811 812 __sli_queue_destroy(sli4, q); 813 return -EIO; 814 } 815 816 static int sli_cmd_cq_set_create(struct sli4 *sli4, 817 struct sli4_queue *qs[], u32 num_cqs, 818 struct sli4_queue *eqs[], 819 struct efc_dma *dma) 820 { 821 struct sli4_rqst_cmn_create_cq_set_v0 *req = NULL; 822 uintptr_t addr; 823 u32 i, offset = 0, page_bytes = 0, payload_size; 824 u32 p = 0, page_size = 0, n_cqe = 0, num_pages_cq; 825 u32 dw5_flags = 0; 826 u16 dw6w1_flags = 0; 827 __le32 req_len; 828 829 n_cqe = qs[0]->dma.size / SLI4_CQE_BYTES; 830 switch (n_cqe) { 831 case 256: 832 case 512: 833 case 1024: 834 case 2048: 835 page_size = 1; 836 break; 837 case 4096: 838 page_size = 2; 839 break; 840 default: 841 return -EIO; 842 } 843 844 page_bytes = page_size * SLI_PAGE_SIZE; 845 num_pages_cq = sli_page_count(qs[0]->dma.size, page_bytes); 846 payload_size = max(SLI4_RQST_CMDSZ(cmn_create_cq_set_v0) + 847 (SZ_DMAADDR * num_pages_cq * num_cqs), 848 sizeof(struct sli4_rsp_cmn_create_queue_set)); 849 850 dma->size = payload_size; 851 dma->virt = dma_alloc_coherent(&sli4->pci->dev, dma->size, 852 &dma->phys, GFP_DMA); 853 if (!dma->virt) 854 return -EIO; 855 856 memset(dma->virt, 0, payload_size); 857 858 req = sli_config_cmd_init(sli4, sli4->bmbx.virt, payload_size, dma); 859 if (!req) 860 return -EIO; 861 862 req_len = SLI4_RQST_PYLD_LEN_VAR(cmn_create_cq_set_v0, 863 SZ_DMAADDR * num_pages_cq * num_cqs); 864 sli_cmd_fill_hdr(&req->hdr, SLI4_CMN_CREATE_CQ_SET, SLI4_SUBSYSTEM_FC, 865 CMD_V0, req_len); 866 req->page_size = page_size; 867 868 req->num_pages = cpu_to_le16(num_pages_cq); 869 switch (num_pages_cq) { 870 case 1: 871 dw5_flags |= SLI4_CQ_CNT_VAL(256); 872 break; 873 case 2: 874 dw5_flags |= SLI4_CQ_CNT_VAL(512); 875 break; 876 case 4: 877 dw5_flags |= SLI4_CQ_CNT_VAL(1024); 878 break; 879 case 8: 880 dw5_flags |= SLI4_CQ_CNT_VAL(LARGE); 881 dw6w1_flags |= (n_cqe & SLI4_CREATE_CQSETV0_CQE_COUNT); 882 break; 883 default: 884 efc_log_info(sli4, "num_pages %d not valid\n", num_pages_cq); 885 return -EIO; 886 } 887 888 dw5_flags |= SLI4_CREATE_CQSETV0_EVT; 889 dw5_flags |= SLI4_CREATE_CQSETV0_VALID; 890 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 891 dw5_flags |= SLI4_CREATE_CQSETV0_AUTOVALID; 892 893 dw6w1_flags &= ~SLI4_CREATE_CQSETV0_ARM; 894 895 req->dw5_flags = cpu_to_le32(dw5_flags); 896 req->dw6w1_flags = cpu_to_le16(dw6w1_flags); 897 898 req->num_cq_req = cpu_to_le16(num_cqs); 899 900 /* Fill page addresses of all the CQs. */ 901 for (i = 0; i < num_cqs; i++) { 902 req->eq_id[i] = cpu_to_le16(eqs[i]->id); 903 for (p = 0, addr = qs[i]->dma.phys; p < num_pages_cq; 904 p++, addr += page_bytes) { 905 req->page_phys_addr[offset].low = 906 cpu_to_le32(lower_32_bits(addr)); 907 req->page_phys_addr[offset].high = 908 cpu_to_le32(upper_32_bits(addr)); 909 offset++; 910 } 911 } 912 913 return 0; 914 } 915 916 int 917 sli_cq_alloc_set(struct sli4 *sli4, struct sli4_queue *qs[], 918 u32 num_cqs, u32 n_entries, struct sli4_queue *eqs[]) 919 { 920 u32 i; 921 struct efc_dma dma = {0}; 922 struct sli4_rsp_cmn_create_queue_set *res; 923 void __iomem *db_regaddr; 924 925 /* Align the queue DMA memory */ 926 for (i = 0; i < num_cqs; i++) { 927 if (__sli_queue_init(sli4, qs[i], SLI4_QTYPE_CQ, SLI4_CQE_BYTES, 928 n_entries, SLI_PAGE_SIZE)) 929 goto error; 930 } 931 932 if (sli_cmd_cq_set_create(sli4, qs, num_cqs, eqs, &dma)) 933 goto error; 934 935 if (sli_bmbx_command(sli4)) 936 goto error; 937 938 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 939 db_regaddr = sli4->reg[1] + SLI4_IF6_CQ_DB_REG; 940 else 941 db_regaddr = sli4->reg[0] + SLI4_EQCQ_DB_REG; 942 943 res = dma.virt; 944 if (res->hdr.status) { 945 efc_log_err(sli4, "bad create CQSet status=%#x addl=%#x\n", 946 res->hdr.status, res->hdr.additional_status); 947 goto error; 948 } 949 950 /* Check if we got all requested CQs. */ 951 if (le16_to_cpu(res->num_q_allocated) != num_cqs) { 952 efc_log_crit(sli4, "Requested count CQs doesn't match.\n"); 953 goto error; 954 } 955 /* Fill the resp cq ids. */ 956 for (i = 0; i < num_cqs; i++) { 957 qs[i]->id = le16_to_cpu(res->q_id) + i; 958 qs[i]->db_regaddr = db_regaddr; 959 } 960 961 dma_free_coherent(&sli4->pci->dev, dma.size, dma.virt, dma.phys); 962 963 return 0; 964 965 error: 966 for (i = 0; i < num_cqs; i++) 967 __sli_queue_destroy(sli4, qs[i]); 968 969 if (dma.virt) 970 dma_free_coherent(&sli4->pci->dev, dma.size, dma.virt, 971 dma.phys); 972 973 return -EIO; 974 } 975 976 static int 977 sli_cmd_common_destroy_q(struct sli4 *sli4, u8 opc, u8 subsystem, u16 q_id) 978 { 979 struct sli4_rqst_cmn_destroy_q *req; 980 981 /* Payload length must accommodate both request and response */ 982 req = sli_config_cmd_init(sli4, sli4->bmbx.virt, 983 SLI4_CFG_PYLD_LENGTH(cmn_destroy_q), NULL); 984 if (!req) 985 return -EIO; 986 987 sli_cmd_fill_hdr(&req->hdr, opc, subsystem, 988 CMD_V0, SLI4_RQST_PYLD_LEN(cmn_destroy_q)); 989 req->q_id = cpu_to_le16(q_id); 990 991 return 0; 992 } 993 994 int 995 sli_queue_free(struct sli4 *sli4, struct sli4_queue *q, 996 u32 destroy_queues, u32 free_memory) 997 { 998 int rc = 0; 999 u8 opcode, subsystem; 1000 struct sli4_rsp_hdr *res; 1001 1002 if (!q) { 1003 efc_log_err(sli4, "bad parameter sli4=%p q=%p\n", sli4, q); 1004 return -EIO; 1005 } 1006 1007 if (!destroy_queues) 1008 goto free_mem; 1009 1010 switch (q->type) { 1011 case SLI4_QTYPE_EQ: 1012 opcode = SLI4_CMN_DESTROY_EQ; 1013 subsystem = SLI4_SUBSYSTEM_COMMON; 1014 break; 1015 case SLI4_QTYPE_CQ: 1016 opcode = SLI4_CMN_DESTROY_CQ; 1017 subsystem = SLI4_SUBSYSTEM_COMMON; 1018 break; 1019 case SLI4_QTYPE_MQ: 1020 opcode = SLI4_CMN_DESTROY_MQ; 1021 subsystem = SLI4_SUBSYSTEM_COMMON; 1022 break; 1023 case SLI4_QTYPE_WQ: 1024 opcode = SLI4_OPC_WQ_DESTROY; 1025 subsystem = SLI4_SUBSYSTEM_FC; 1026 break; 1027 case SLI4_QTYPE_RQ: 1028 opcode = SLI4_OPC_RQ_DESTROY; 1029 subsystem = SLI4_SUBSYSTEM_FC; 1030 break; 1031 default: 1032 efc_log_info(sli4, "bad queue type %d\n", q->type); 1033 rc = -EIO; 1034 goto free_mem; 1035 } 1036 1037 rc = sli_cmd_common_destroy_q(sli4, opcode, subsystem, q->id); 1038 if (rc) 1039 goto free_mem; 1040 1041 rc = sli_bmbx_command(sli4); 1042 if (rc) 1043 goto free_mem; 1044 1045 rc = sli_res_sli_config(sli4, sli4->bmbx.virt); 1046 if (rc) 1047 goto free_mem; 1048 1049 res = (void *)((u8 *)sli4->bmbx.virt + 1050 offsetof(struct sli4_cmd_sli_config, payload)); 1051 if (res->status) { 1052 efc_log_err(sli4, "destroy %s st=%#x addl=%#x\n", 1053 SLI4_QNAME[q->type], res->status, 1054 res->additional_status); 1055 rc = -EIO; 1056 goto free_mem; 1057 } 1058 1059 free_mem: 1060 if (free_memory) 1061 __sli_queue_destroy(sli4, q); 1062 1063 return rc; 1064 } 1065 1066 int 1067 sli_queue_eq_arm(struct sli4 *sli4, struct sli4_queue *q, bool arm) 1068 { 1069 u32 val; 1070 unsigned long flags = 0; 1071 u32 a = arm ? SLI4_EQCQ_ARM : SLI4_EQCQ_UNARM; 1072 1073 spin_lock_irqsave(&q->lock, flags); 1074 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 1075 val = sli_format_if6_eq_db_data(q->n_posted, q->id, a); 1076 else 1077 val = sli_format_eq_db_data(q->n_posted, q->id, a); 1078 1079 writel(val, q->db_regaddr); 1080 q->n_posted = 0; 1081 spin_unlock_irqrestore(&q->lock, flags); 1082 1083 return 0; 1084 } 1085 1086 int 1087 sli_queue_arm(struct sli4 *sli4, struct sli4_queue *q, bool arm) 1088 { 1089 u32 val = 0; 1090 unsigned long flags = 0; 1091 u32 a = arm ? SLI4_EQCQ_ARM : SLI4_EQCQ_UNARM; 1092 1093 spin_lock_irqsave(&q->lock, flags); 1094 1095 switch (q->type) { 1096 case SLI4_QTYPE_EQ: 1097 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 1098 val = sli_format_if6_eq_db_data(q->n_posted, q->id, a); 1099 else 1100 val = sli_format_eq_db_data(q->n_posted, q->id, a); 1101 1102 writel(val, q->db_regaddr); 1103 q->n_posted = 0; 1104 break; 1105 case SLI4_QTYPE_CQ: 1106 if (sli4->if_type == SLI4_INTF_IF_TYPE_6) 1107 val = sli_format_if6_cq_db_data(q->n_posted, q->id, a); 1108 else 1109 val = sli_format_cq_db_data(q->n_posted, q->id, a); 1110 1111 writel(val, q->db_regaddr); 1112 q->n_posted = 0; 1113 break; 1114 default: 1115 efc_log_info(sli4, "should only be used for EQ/CQ, not %s\n", 1116 SLI4_QNAME[q->type]); 1117 } 1118 1119 spin_unlock_irqrestore(&q->lock, flags); 1120 1121 return 0; 1122 } 1123 1124 int 1125 sli_wq_write(struct sli4 *sli4, struct sli4_queue *q, u8 *entry) 1126 { 1127 u8 *qe = q->dma.virt; 1128 u32 qindex; 1129 u32 val = 0; 1130 1131 qindex = q->index; 1132 qe += q->index * q->size; 1133 1134 if (sli4->params.perf_wq_id_association) 1135 sli_set_wq_id_association(entry, q->id); 1136 1137 memcpy(qe, entry, q->size); 1138 val = sli_format_wq_db_data(q->id); 1139 1140 writel(val, q->db_regaddr); 1141 q->index = (q->index + 1) & (q->length - 1); 1142 1143 return qindex; 1144 } 1145 1146 int 1147 sli_mq_write(struct sli4 *sli4, struct sli4_queue *q, u8 *entry) 1148 { 1149 u8 *qe = q->dma.virt; 1150 u32 qindex; 1151 u32 val = 0; 1152 unsigned long flags; 1153 1154 spin_lock_irqsave(&q->lock, flags); 1155 qindex = q->index; 1156 qe += q->index * q->size; 1157 1158 memcpy(qe, entry, q->size); 1159 val = sli_format_mq_db_data(q->id); 1160 writel(val, q->db_regaddr); 1161 q->index = (q->index + 1) & (q->length - 1); 1162 spin_unlock_irqrestore(&q->lock, flags); 1163 1164 return qindex; 1165 } 1166 1167 int 1168 sli_rq_write(struct sli4 *sli4, struct sli4_queue *q, u8 *entry) 1169 { 1170 u8 *qe = q->dma.virt; 1171 u32 qindex; 1172 u32 val = 0; 1173 1174 qindex = q->index; 1175 qe += q->index * q->size; 1176 1177 memcpy(qe, entry, q->size); 1178 1179 /* 1180 * In RQ-pair, an RQ either contains the FC header 1181 * (i.e. is_hdr == TRUE) or the payload. 1182 * 1183 * Don't ring doorbell for payload RQ 1184 */ 1185 if (!(q->u.flag & SLI4_QUEUE_FLAG_HDR)) 1186 goto skip; 1187 1188 val = sli_format_rq_db_data(q->id); 1189 writel(val, q->db_regaddr); 1190 skip: 1191 q->index = (q->index + 1) & (q->length - 1); 1192 1193 return qindex; 1194 } 1195 1196 int 1197 sli_eq_read(struct sli4 *sli4, struct sli4_queue *q, u8 *entry) 1198 { 1199 u8 *qe = q->dma.virt; 1200 unsigned long flags = 0; 1201 u16 wflags = 0; 1202 1203 spin_lock_irqsave(&q->lock, flags); 1204 1205 qe += q->index * q->size; 1206 1207 /* Check if eqe is valid */ 1208 wflags = le16_to_cpu(((struct sli4_eqe *)qe)->dw0w0_flags); 1209 1210 if ((wflags & SLI4_EQE_VALID) != q->phase) { 1211 spin_unlock_irqrestore(&q->lock, flags); 1212 return -EIO; 1213 } 1214 1215 if (sli4->if_type != SLI4_INTF_IF_TYPE_6) { 1216 wflags &= ~SLI4_EQE_VALID; 1217 ((struct sli4_eqe *)qe)->dw0w0_flags = cpu_to_le16(wflags); 1218 } 1219 1220 memcpy(entry, qe, q->size); 1221 q->index = (q->index + 1) & (q->length - 1); 1222 q->n_posted++; 1223 /* 1224 * For prism, the phase value will be used 1225 * to check the validity of eq/cq entries. 1226 * The value toggles after a complete sweep 1227 * through the queue. 1228 */ 1229 1230 if (sli4->if_type == SLI4_INTF_IF_TYPE_6 && q->index == 0) 1231 q->phase ^= (u16)0x1; 1232 1233 spin_unlock_irqrestore(&q->lock, flags); 1234 1235 return 0; 1236 } 1237 1238 int 1239 sli_cq_read(struct sli4 *sli4, struct sli4_queue *q, u8 *entry) 1240 { 1241 u8 *qe = q->dma.virt; 1242 unsigned long flags = 0; 1243 u32 dwflags = 0; 1244 bool valid_bit_set; 1245 1246 spin_lock_irqsave(&q->lock, flags); 1247 1248 qe += q->index * q->size; 1249 1250 /* Check if cqe is valid */ 1251 dwflags = le32_to_cpu(((struct sli4_mcqe *)qe)->dw3_flags); 1252 valid_bit_set = (dwflags & SLI4_MCQE_VALID) != 0; 1253 1254 if (valid_bit_set != q->phase) { 1255 spin_unlock_irqrestore(&q->lock, flags); 1256 return -EIO; 1257 } 1258 1259 if (sli4->if_type != SLI4_INTF_IF_TYPE_6) { 1260 dwflags &= ~SLI4_MCQE_VALID; 1261 ((struct sli4_mcqe *)qe)->dw3_flags = cpu_to_le32(dwflags); 1262 } 1263 1264 memcpy(entry, qe, q->size); 1265 q->index = (q->index + 1) & (q->length - 1); 1266 q->n_posted++; 1267 /* 1268 * For prism, the phase value will be used 1269 * to check the validity of eq/cq entries. 1270 * The value toggles after a complete sweep 1271 * through the queue. 1272 */ 1273 1274 if (sli4->if_type == SLI4_INTF_IF_TYPE_6 && q->index == 0) 1275 q->phase ^= (u16)0x1; 1276 1277 spin_unlock_irqrestore(&q->lock, flags); 1278 1279 return 0; 1280 } 1281 1282 int 1283 sli_mq_read(struct sli4 *sli4, struct sli4_queue *q, u8 *entry) 1284 { 1285 u8 *qe = q->dma.virt; 1286 unsigned long flags = 0; 1287 1288 spin_lock_irqsave(&q->lock, flags); 1289 1290 qe += q->u.r_idx * q->size; 1291 1292 /* Check if mqe is valid */ 1293 if (q->index == q->u.r_idx) { 1294 spin_unlock_irqrestore(&q->lock, flags); 1295 return -EIO; 1296 } 1297 1298 memcpy(entry, qe, q->size); 1299 q->u.r_idx = (q->u.r_idx + 1) & (q->length - 1); 1300 1301 spin_unlock_irqrestore(&q->lock, flags); 1302 1303 return 0; 1304 } 1305 1306 int 1307 sli_eq_parse(struct sli4 *sli4, u8 *buf, u16 *cq_id) 1308 { 1309 struct sli4_eqe *eqe = (void *)buf; 1310 int rc = 0; 1311 u16 flags = 0; 1312 u16 majorcode; 1313 u16 minorcode; 1314 1315 if (!buf || !cq_id) { 1316 efc_log_err(sli4, "bad parameters sli4=%p buf=%p cq_id=%p\n", 1317 sli4, buf, cq_id); 1318 return -EIO; 1319 } 1320 1321 flags = le16_to_cpu(eqe->dw0w0_flags); 1322 majorcode = (flags & SLI4_EQE_MJCODE) >> 1; 1323 minorcode = (flags & SLI4_EQE_MNCODE) >> 4; 1324 switch (majorcode) { 1325 case SLI4_MAJOR_CODE_STANDARD: 1326 *cq_id = le16_to_cpu(eqe->resource_id); 1327 break; 1328 case SLI4_MAJOR_CODE_SENTINEL: 1329 efc_log_info(sli4, "sentinel EQE\n"); 1330 rc = SLI4_EQE_STATUS_EQ_FULL; 1331 break; 1332 default: 1333 efc_log_info(sli4, "Unsupported EQE: major %x minor %x\n", 1334 majorcode, minorcode); 1335 rc = -EIO; 1336 } 1337 1338 return rc; 1339 } 1340 1341 int 1342 sli_cq_parse(struct sli4 *sli4, struct sli4_queue *cq, u8 *cqe, 1343 enum sli4_qentry *etype, u16 *q_id) 1344 { 1345 int rc = 0; 1346 1347 if (!cq || !cqe || !etype) { 1348 efc_log_err(sli4, "bad params sli4=%p cq=%p cqe=%p etype=%p q_id=%p\n", 1349 sli4, cq, cqe, etype, q_id); 1350 return -EINVAL; 1351 } 1352 1353 /* Parse a CQ entry to retrieve the event type and the queue id */ 1354 if (cq->u.flag & SLI4_QUEUE_FLAG_MQ) { 1355 struct sli4_mcqe *mcqe = (void *)cqe; 1356 1357 if (le32_to_cpu(mcqe->dw3_flags) & SLI4_MCQE_AE) { 1358 *etype = SLI4_QENTRY_ASYNC; 1359 } else { 1360 *etype = SLI4_QENTRY_MQ; 1361 rc = sli_cqe_mq(sli4, mcqe); 1362 } 1363 *q_id = -1; 1364 } else { 1365 rc = sli_fc_cqe_parse(sli4, cq, cqe, etype, q_id); 1366 } 1367 1368 return rc; 1369 } 1370 1371 int 1372 sli_abort_wqe(struct sli4 *sli, void *buf, enum sli4_abort_type type, 1373 bool send_abts, u32 ids, u32 mask, u16 tag, u16 cq_id) 1374 { 1375 struct sli4_abort_wqe *abort = buf; 1376 1377 memset(buf, 0, sli->wqe_size); 1378 1379 switch (type) { 1380 case SLI4_ABORT_XRI: 1381 abort->criteria = SLI4_ABORT_CRITERIA_XRI_TAG; 1382 if (mask) { 1383 efc_log_warn(sli, "%#x aborting XRI %#x warning non-zero mask", 1384 mask, ids); 1385 mask = 0; 1386 } 1387 break; 1388 case SLI4_ABORT_ABORT_ID: 1389 abort->criteria = SLI4_ABORT_CRITERIA_ABORT_TAG; 1390 break; 1391 case SLI4_ABORT_REQUEST_ID: 1392 abort->criteria = SLI4_ABORT_CRITERIA_REQUEST_TAG; 1393 break; 1394 default: 1395 efc_log_info(sli, "unsupported type %#x\n", type); 1396 return -EIO; 1397 } 1398 1399 abort->ia_ir_byte |= send_abts ? 0 : 1; 1400 1401 /* Suppress ABTS retries */ 1402 abort->ia_ir_byte |= SLI4_ABRT_WQE_IR; 1403 1404 abort->t_mask = cpu_to_le32(mask); 1405 abort->t_tag = cpu_to_le32(ids); 1406 abort->command = SLI4_WQE_ABORT; 1407 abort->request_tag = cpu_to_le16(tag); 1408 1409 abort->dw10w0_flags = cpu_to_le16(SLI4_ABRT_WQE_QOSD); 1410 1411 abort->cq_id = cpu_to_le16(cq_id); 1412 abort->cmdtype_wqec_byte |= SLI4_CMD_ABORT_WQE; 1413 1414 return 0; 1415 } 1416 1417 int 1418 sli_els_request64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl, 1419 struct sli_els_params *params) 1420 { 1421 struct sli4_els_request64_wqe *els = buf; 1422 struct sli4_sge *sge = sgl->virt; 1423 bool is_fabric = false; 1424 struct sli4_bde *bptr; 1425 1426 memset(buf, 0, sli->wqe_size); 1427 1428 bptr = &els->els_request_payload; 1429 if (sli->params.sgl_pre_registered) { 1430 els->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_REQ_WQE_XBL; 1431 1432 els->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_REQ_WQE_DBDE; 1433 bptr->bde_type_buflen = 1434 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1435 (params->xmit_len & SLI4_BDE_LEN_MASK)); 1436 1437 bptr->u.data.low = sge[0].buffer_address_low; 1438 bptr->u.data.high = sge[0].buffer_address_high; 1439 } else { 1440 els->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_REQ_WQE_XBL; 1441 1442 bptr->bde_type_buflen = 1443 cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) | 1444 ((2 * sizeof(struct sli4_sge)) & 1445 SLI4_BDE_LEN_MASK)); 1446 bptr->u.blp.low = cpu_to_le32(lower_32_bits(sgl->phys)); 1447 bptr->u.blp.high = cpu_to_le32(upper_32_bits(sgl->phys)); 1448 } 1449 1450 els->els_request_payload_length = cpu_to_le32(params->xmit_len); 1451 els->max_response_payload_length = cpu_to_le32(params->rsp_len); 1452 1453 els->xri_tag = cpu_to_le16(params->xri); 1454 els->timer = params->timeout; 1455 els->class_byte |= SLI4_GENERIC_CLASS_CLASS_3; 1456 1457 els->command = SLI4_WQE_ELS_REQUEST64; 1458 1459 els->request_tag = cpu_to_le16(params->tag); 1460 1461 els->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_REQ_WQE_IOD; 1462 1463 els->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_REQ_WQE_QOSD; 1464 1465 /* figure out the ELS_ID value from the request buffer */ 1466 1467 switch (params->cmd) { 1468 case ELS_LOGO: 1469 els->cmdtype_elsid_byte |= 1470 SLI4_ELS_REQUEST64_LOGO << SLI4_REQ_WQE_ELSID_SHFT; 1471 if (params->rpi_registered) { 1472 els->ct_byte |= 1473 SLI4_GENERIC_CONTEXT_RPI << SLI4_REQ_WQE_CT_SHFT; 1474 els->context_tag = cpu_to_le16(params->rpi); 1475 } else { 1476 els->ct_byte |= 1477 SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT; 1478 els->context_tag = cpu_to_le16(params->vpi); 1479 } 1480 if (params->d_id == FC_FID_FLOGI) 1481 is_fabric = true; 1482 break; 1483 case ELS_FDISC: 1484 if (params->d_id == FC_FID_FLOGI) 1485 is_fabric = true; 1486 if (params->s_id == 0) { 1487 els->cmdtype_elsid_byte |= 1488 SLI4_ELS_REQUEST64_FDISC << SLI4_REQ_WQE_ELSID_SHFT; 1489 is_fabric = true; 1490 } else { 1491 els->cmdtype_elsid_byte |= 1492 SLI4_ELS_REQUEST64_OTHER << SLI4_REQ_WQE_ELSID_SHFT; 1493 } 1494 els->ct_byte |= 1495 SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT; 1496 els->context_tag = cpu_to_le16(params->vpi); 1497 els->sid_sp_dword |= cpu_to_le32(1 << SLI4_REQ_WQE_SP_SHFT); 1498 break; 1499 case ELS_FLOGI: 1500 els->ct_byte |= 1501 SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT; 1502 els->context_tag = cpu_to_le16(params->vpi); 1503 /* 1504 * Set SP here ... we haven't done a REG_VPI yet 1505 * need to maybe not set this when we have 1506 * completed VFI/VPI registrations ... 1507 * 1508 * Use the FC_ID of the SPORT if it has been allocated, 1509 * otherwise use an S_ID of zero. 1510 */ 1511 els->sid_sp_dword |= cpu_to_le32(1 << SLI4_REQ_WQE_SP_SHFT); 1512 if (params->s_id != U32_MAX) 1513 els->sid_sp_dword |= cpu_to_le32(params->s_id); 1514 break; 1515 case ELS_PLOGI: 1516 els->cmdtype_elsid_byte |= 1517 SLI4_ELS_REQUEST64_PLOGI << SLI4_REQ_WQE_ELSID_SHFT; 1518 els->ct_byte |= 1519 SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT; 1520 els->context_tag = cpu_to_le16(params->vpi); 1521 break; 1522 case ELS_SCR: 1523 els->cmdtype_elsid_byte |= 1524 SLI4_ELS_REQUEST64_OTHER << SLI4_REQ_WQE_ELSID_SHFT; 1525 els->ct_byte |= 1526 SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT; 1527 els->context_tag = cpu_to_le16(params->vpi); 1528 break; 1529 default: 1530 els->cmdtype_elsid_byte |= 1531 SLI4_ELS_REQUEST64_OTHER << SLI4_REQ_WQE_ELSID_SHFT; 1532 if (params->rpi_registered) { 1533 els->ct_byte |= (SLI4_GENERIC_CONTEXT_RPI << 1534 SLI4_REQ_WQE_CT_SHFT); 1535 els->context_tag = cpu_to_le16(params->vpi); 1536 } else { 1537 els->ct_byte |= 1538 SLI4_GENERIC_CONTEXT_VPI << SLI4_REQ_WQE_CT_SHFT; 1539 els->context_tag = cpu_to_le16(params->vpi); 1540 } 1541 break; 1542 } 1543 1544 if (is_fabric) 1545 els->cmdtype_elsid_byte |= SLI4_ELS_REQUEST64_CMD_FABRIC; 1546 else 1547 els->cmdtype_elsid_byte |= SLI4_ELS_REQUEST64_CMD_NON_FABRIC; 1548 1549 els->cq_id = cpu_to_le16(SLI4_CQ_DEFAULT); 1550 1551 if (((els->ct_byte & SLI4_REQ_WQE_CT) >> SLI4_REQ_WQE_CT_SHFT) != 1552 SLI4_GENERIC_CONTEXT_RPI) 1553 els->remote_id_dword = cpu_to_le32(params->d_id); 1554 1555 if (((els->ct_byte & SLI4_REQ_WQE_CT) >> SLI4_REQ_WQE_CT_SHFT) == 1556 SLI4_GENERIC_CONTEXT_VPI) 1557 els->temporary_rpi = cpu_to_le16(params->rpi); 1558 1559 return 0; 1560 } 1561 1562 int 1563 sli_fcp_icmnd64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl, u16 xri, 1564 u16 tag, u16 cq_id, u32 rpi, u32 rnode_fcid, u8 timeout) 1565 { 1566 struct sli4_fcp_icmnd64_wqe *icmnd = buf; 1567 struct sli4_sge *sge = NULL; 1568 struct sli4_bde *bptr; 1569 u32 len; 1570 1571 memset(buf, 0, sli->wqe_size); 1572 1573 if (!sgl || !sgl->virt) { 1574 efc_log_err(sli, "bad parameter sgl=%p virt=%p\n", 1575 sgl, sgl ? sgl->virt : NULL); 1576 return -EIO; 1577 } 1578 sge = sgl->virt; 1579 bptr = &icmnd->bde; 1580 if (sli->params.sgl_pre_registered) { 1581 icmnd->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_ICMD_WQE_XBL; 1582 1583 icmnd->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_ICMD_WQE_DBDE; 1584 bptr->bde_type_buflen = 1585 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1586 (le32_to_cpu(sge[0].buffer_length) & 1587 SLI4_BDE_LEN_MASK)); 1588 1589 bptr->u.data.low = sge[0].buffer_address_low; 1590 bptr->u.data.high = sge[0].buffer_address_high; 1591 } else { 1592 icmnd->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_ICMD_WQE_XBL; 1593 1594 bptr->bde_type_buflen = 1595 cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) | 1596 (sgl->size & SLI4_BDE_LEN_MASK)); 1597 1598 bptr->u.blp.low = cpu_to_le32(lower_32_bits(sgl->phys)); 1599 bptr->u.blp.high = cpu_to_le32(upper_32_bits(sgl->phys)); 1600 } 1601 1602 len = le32_to_cpu(sge[0].buffer_length) + 1603 le32_to_cpu(sge[1].buffer_length); 1604 icmnd->payload_offset_length = cpu_to_le16(len); 1605 icmnd->xri_tag = cpu_to_le16(xri); 1606 icmnd->context_tag = cpu_to_le16(rpi); 1607 icmnd->timer = timeout; 1608 1609 /* WQE word 4 contains read transfer length */ 1610 icmnd->class_pu_byte |= 2 << SLI4_ICMD_WQE_PU_SHFT; 1611 icmnd->class_pu_byte |= SLI4_GENERIC_CLASS_CLASS_3; 1612 icmnd->command = SLI4_WQE_FCP_ICMND64; 1613 icmnd->dif_ct_bs_byte |= 1614 SLI4_GENERIC_CONTEXT_RPI << SLI4_ICMD_WQE_CT_SHFT; 1615 1616 icmnd->abort_tag = cpu_to_le32(xri); 1617 1618 icmnd->request_tag = cpu_to_le16(tag); 1619 icmnd->len_loc1_byte |= SLI4_ICMD_WQE_LEN_LOC_BIT1; 1620 icmnd->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_ICMD_WQE_LEN_LOC_BIT2; 1621 icmnd->cmd_type_byte |= SLI4_CMD_FCP_ICMND64_WQE; 1622 icmnd->cq_id = cpu_to_le16(cq_id); 1623 1624 return 0; 1625 } 1626 1627 int 1628 sli_fcp_iread64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl, 1629 u32 first_data_sge, u32 xfer_len, u16 xri, u16 tag, 1630 u16 cq_id, u32 rpi, u32 rnode_fcid, 1631 u8 dif, u8 bs, u8 timeout) 1632 { 1633 struct sli4_fcp_iread64_wqe *iread = buf; 1634 struct sli4_sge *sge = NULL; 1635 struct sli4_bde *bptr; 1636 u32 sge_flags, len; 1637 1638 memset(buf, 0, sli->wqe_size); 1639 1640 if (!sgl || !sgl->virt) { 1641 efc_log_err(sli, "bad parameter sgl=%p virt=%p\n", 1642 sgl, sgl ? sgl->virt : NULL); 1643 return -EIO; 1644 } 1645 1646 sge = sgl->virt; 1647 bptr = &iread->bde; 1648 if (sli->params.sgl_pre_registered) { 1649 iread->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_IR_WQE_XBL; 1650 1651 iread->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IR_WQE_DBDE; 1652 1653 bptr->bde_type_buflen = 1654 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1655 (le32_to_cpu(sge[0].buffer_length) & 1656 SLI4_BDE_LEN_MASK)); 1657 1658 bptr->u.blp.low = sge[0].buffer_address_low; 1659 bptr->u.blp.high = sge[0].buffer_address_high; 1660 } else { 1661 iread->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IR_WQE_XBL; 1662 1663 bptr->bde_type_buflen = 1664 cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) | 1665 (sgl->size & SLI4_BDE_LEN_MASK)); 1666 1667 bptr->u.blp.low = 1668 cpu_to_le32(lower_32_bits(sgl->phys)); 1669 bptr->u.blp.high = 1670 cpu_to_le32(upper_32_bits(sgl->phys)); 1671 1672 /* 1673 * fill out fcp_cmnd buffer len and change resp buffer to be of 1674 * type "skip" (note: response will still be written to sge[1] 1675 * if necessary) 1676 */ 1677 len = le32_to_cpu(sge[0].buffer_length); 1678 iread->fcp_cmd_buffer_length = cpu_to_le16(len); 1679 1680 sge_flags = le32_to_cpu(sge[1].dw2_flags); 1681 sge_flags &= (~SLI4_SGE_TYPE_MASK); 1682 sge_flags |= (SLI4_SGE_TYPE_SKIP << SLI4_SGE_TYPE_SHIFT); 1683 sge[1].dw2_flags = cpu_to_le32(sge_flags); 1684 } 1685 1686 len = le32_to_cpu(sge[0].buffer_length) + 1687 le32_to_cpu(sge[1].buffer_length); 1688 iread->payload_offset_length = cpu_to_le16(len); 1689 iread->total_transfer_length = cpu_to_le32(xfer_len); 1690 1691 iread->xri_tag = cpu_to_le16(xri); 1692 iread->context_tag = cpu_to_le16(rpi); 1693 1694 iread->timer = timeout; 1695 1696 /* WQE word 4 contains read transfer length */ 1697 iread->class_pu_byte |= 2 << SLI4_IR_WQE_PU_SHFT; 1698 iread->class_pu_byte |= SLI4_GENERIC_CLASS_CLASS_3; 1699 iread->command = SLI4_WQE_FCP_IREAD64; 1700 iread->dif_ct_bs_byte |= 1701 SLI4_GENERIC_CONTEXT_RPI << SLI4_IR_WQE_CT_SHFT; 1702 iread->dif_ct_bs_byte |= dif; 1703 iread->dif_ct_bs_byte |= bs << SLI4_IR_WQE_BS_SHFT; 1704 1705 iread->abort_tag = cpu_to_le32(xri); 1706 1707 iread->request_tag = cpu_to_le16(tag); 1708 iread->len_loc1_byte |= SLI4_IR_WQE_LEN_LOC_BIT1; 1709 iread->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IR_WQE_LEN_LOC_BIT2; 1710 iread->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IR_WQE_IOD; 1711 iread->cmd_type_byte |= SLI4_CMD_FCP_IREAD64_WQE; 1712 iread->cq_id = cpu_to_le16(cq_id); 1713 1714 if (sli->params.perf_hint) { 1715 bptr = &iread->first_data_bde; 1716 bptr->bde_type_buflen = cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1717 (le32_to_cpu(sge[first_data_sge].buffer_length) & 1718 SLI4_BDE_LEN_MASK)); 1719 bptr->u.data.low = 1720 sge[first_data_sge].buffer_address_low; 1721 bptr->u.data.high = 1722 sge[first_data_sge].buffer_address_high; 1723 } 1724 1725 return 0; 1726 } 1727 1728 int 1729 sli_fcp_iwrite64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl, 1730 u32 first_data_sge, u32 xfer_len, 1731 u32 first_burst, u16 xri, u16 tag, 1732 u16 cq_id, u32 rpi, 1733 u32 rnode_fcid, 1734 u8 dif, u8 bs, u8 timeout) 1735 { 1736 struct sli4_fcp_iwrite64_wqe *iwrite = buf; 1737 struct sli4_sge *sge = NULL; 1738 struct sli4_bde *bptr; 1739 u32 sge_flags, min, len; 1740 1741 memset(buf, 0, sli->wqe_size); 1742 1743 if (!sgl || !sgl->virt) { 1744 efc_log_err(sli, "bad parameter sgl=%p virt=%p\n", 1745 sgl, sgl ? sgl->virt : NULL); 1746 return -EIO; 1747 } 1748 sge = sgl->virt; 1749 bptr = &iwrite->bde; 1750 if (sli->params.sgl_pre_registered) { 1751 iwrite->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_IWR_WQE_XBL; 1752 1753 iwrite->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IWR_WQE_DBDE; 1754 bptr->bde_type_buflen = cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1755 (le32_to_cpu(sge[0].buffer_length) & SLI4_BDE_LEN_MASK)); 1756 bptr->u.data.low = sge[0].buffer_address_low; 1757 bptr->u.data.high = sge[0].buffer_address_high; 1758 } else { 1759 iwrite->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IWR_WQE_XBL; 1760 1761 bptr->bde_type_buflen = cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1762 (sgl->size & SLI4_BDE_LEN_MASK)); 1763 1764 bptr->u.blp.low = cpu_to_le32(lower_32_bits(sgl->phys)); 1765 bptr->u.blp.high = cpu_to_le32(upper_32_bits(sgl->phys)); 1766 1767 /* 1768 * fill out fcp_cmnd buffer len and change resp buffer to be of 1769 * type "skip" (note: response will still be written to sge[1] 1770 * if necessary) 1771 */ 1772 len = le32_to_cpu(sge[0].buffer_length); 1773 iwrite->fcp_cmd_buffer_length = cpu_to_le16(len); 1774 sge_flags = le32_to_cpu(sge[1].dw2_flags); 1775 sge_flags &= ~SLI4_SGE_TYPE_MASK; 1776 sge_flags |= (SLI4_SGE_TYPE_SKIP << SLI4_SGE_TYPE_SHIFT); 1777 sge[1].dw2_flags = cpu_to_le32(sge_flags); 1778 } 1779 1780 len = le32_to_cpu(sge[0].buffer_length) + 1781 le32_to_cpu(sge[1].buffer_length); 1782 iwrite->payload_offset_length = cpu_to_le16(len); 1783 iwrite->total_transfer_length = cpu_to_le16(xfer_len); 1784 min = (xfer_len < first_burst) ? xfer_len : first_burst; 1785 iwrite->initial_transfer_length = cpu_to_le16(min); 1786 1787 iwrite->xri_tag = cpu_to_le16(xri); 1788 iwrite->context_tag = cpu_to_le16(rpi); 1789 1790 iwrite->timer = timeout; 1791 /* WQE word 4 contains read transfer length */ 1792 iwrite->class_pu_byte |= 2 << SLI4_IWR_WQE_PU_SHFT; 1793 iwrite->class_pu_byte |= SLI4_GENERIC_CLASS_CLASS_3; 1794 iwrite->command = SLI4_WQE_FCP_IWRITE64; 1795 iwrite->dif_ct_bs_byte |= 1796 SLI4_GENERIC_CONTEXT_RPI << SLI4_IWR_WQE_CT_SHFT; 1797 iwrite->dif_ct_bs_byte |= dif; 1798 iwrite->dif_ct_bs_byte |= bs << SLI4_IWR_WQE_BS_SHFT; 1799 1800 iwrite->abort_tag = cpu_to_le32(xri); 1801 1802 iwrite->request_tag = cpu_to_le16(tag); 1803 iwrite->len_loc1_byte |= SLI4_IWR_WQE_LEN_LOC_BIT1; 1804 iwrite->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_IWR_WQE_LEN_LOC_BIT2; 1805 iwrite->cmd_type_byte |= SLI4_CMD_FCP_IWRITE64_WQE; 1806 iwrite->cq_id = cpu_to_le16(cq_id); 1807 1808 if (sli->params.perf_hint) { 1809 bptr = &iwrite->first_data_bde; 1810 1811 bptr->bde_type_buflen = cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1812 (le32_to_cpu(sge[first_data_sge].buffer_length) & 1813 SLI4_BDE_LEN_MASK)); 1814 1815 bptr->u.data.low = sge[first_data_sge].buffer_address_low; 1816 bptr->u.data.high = sge[first_data_sge].buffer_address_high; 1817 } 1818 1819 return 0; 1820 } 1821 1822 int 1823 sli_fcp_treceive64_wqe(struct sli4 *sli, void *buf, struct efc_dma *sgl, 1824 u32 first_data_sge, u16 cq_id, u8 dif, u8 bs, 1825 struct sli_fcp_tgt_params *params) 1826 { 1827 struct sli4_fcp_treceive64_wqe *trecv = buf; 1828 struct sli4_fcp_128byte_wqe *trecv_128 = buf; 1829 struct sli4_sge *sge = NULL; 1830 struct sli4_bde *bptr; 1831 1832 memset(buf, 0, sli->wqe_size); 1833 1834 if (!sgl || !sgl->virt) { 1835 efc_log_err(sli, "bad parameter sgl=%p virt=%p\n", 1836 sgl, sgl ? sgl->virt : NULL); 1837 return -EIO; 1838 } 1839 sge = sgl->virt; 1840 bptr = &trecv->bde; 1841 if (sli->params.sgl_pre_registered) { 1842 trecv->qosd_xbl_hlm_iod_dbde_wqes &= ~SLI4_TRCV_WQE_XBL; 1843 1844 trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_DBDE; 1845 1846 bptr->bde_type_buflen = 1847 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1848 (le32_to_cpu(sge[0].buffer_length) 1849 & SLI4_BDE_LEN_MASK)); 1850 1851 bptr->u.data.low = sge[0].buffer_address_low; 1852 bptr->u.data.high = sge[0].buffer_address_high; 1853 1854 trecv->payload_offset_length = sge[0].buffer_length; 1855 } else { 1856 trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_XBL; 1857 1858 /* if data is a single physical address, use a BDE */ 1859 if (!dif && 1860 params->xmit_len <= le32_to_cpu(sge[2].buffer_length)) { 1861 trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_DBDE; 1862 bptr->bde_type_buflen = 1863 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1864 (le32_to_cpu(sge[2].buffer_length) 1865 & SLI4_BDE_LEN_MASK)); 1866 1867 bptr->u.data.low = sge[2].buffer_address_low; 1868 bptr->u.data.high = sge[2].buffer_address_high; 1869 } else { 1870 bptr->bde_type_buflen = 1871 cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) | 1872 (sgl->size & SLI4_BDE_LEN_MASK)); 1873 bptr->u.blp.low = cpu_to_le32(lower_32_bits(sgl->phys)); 1874 bptr->u.blp.high = 1875 cpu_to_le32(upper_32_bits(sgl->phys)); 1876 } 1877 } 1878 1879 trecv->relative_offset = cpu_to_le32(params->offset); 1880 1881 if (params->flags & SLI4_IO_CONTINUATION) 1882 trecv->eat_xc_ccpe |= SLI4_TRCV_WQE_XC; 1883 1884 trecv->xri_tag = cpu_to_le16(params->xri); 1885 1886 trecv->context_tag = cpu_to_le16(params->rpi); 1887 1888 /* WQE uses relative offset */ 1889 trecv->class_ar_pu_byte |= 1 << SLI4_TRCV_WQE_PU_SHFT; 1890 1891 if (params->flags & SLI4_IO_AUTO_GOOD_RESPONSE) 1892 trecv->class_ar_pu_byte |= SLI4_TRCV_WQE_AR; 1893 1894 trecv->command = SLI4_WQE_FCP_TRECEIVE64; 1895 trecv->class_ar_pu_byte |= SLI4_GENERIC_CLASS_CLASS_3; 1896 trecv->dif_ct_bs_byte |= 1897 SLI4_GENERIC_CONTEXT_RPI << SLI4_TRCV_WQE_CT_SHFT; 1898 trecv->dif_ct_bs_byte |= bs << SLI4_TRCV_WQE_BS_SHFT; 1899 1900 trecv->remote_xid = cpu_to_le16(params->ox_id); 1901 1902 trecv->request_tag = cpu_to_le16(params->tag); 1903 1904 trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_IOD; 1905 1906 trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_LEN_LOC_BIT2; 1907 1908 trecv->cmd_type_byte |= SLI4_CMD_FCP_TRECEIVE64_WQE; 1909 1910 trecv->cq_id = cpu_to_le16(cq_id); 1911 1912 trecv->fcp_data_receive_length = cpu_to_le32(params->xmit_len); 1913 1914 if (sli->params.perf_hint) { 1915 bptr = &trecv->first_data_bde; 1916 1917 bptr->bde_type_buflen = 1918 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1919 (le32_to_cpu(sge[first_data_sge].buffer_length) & 1920 SLI4_BDE_LEN_MASK)); 1921 bptr->u.data.low = sge[first_data_sge].buffer_address_low; 1922 bptr->u.data.high = sge[first_data_sge].buffer_address_high; 1923 } 1924 1925 /* The upper 7 bits of csctl is the priority */ 1926 if (params->cs_ctl & SLI4_MASK_CCP) { 1927 trecv->eat_xc_ccpe |= SLI4_TRCV_WQE_CCPE; 1928 trecv->ccp = (params->cs_ctl & SLI4_MASK_CCP); 1929 } 1930 1931 if (params->app_id && sli->wqe_size == SLI4_WQE_EXT_BYTES && 1932 !(trecv->eat_xc_ccpe & SLI4_TRSP_WQE_EAT)) { 1933 trecv->lloc1_appid |= SLI4_TRCV_WQE_APPID; 1934 trecv->qosd_xbl_hlm_iod_dbde_wqes |= SLI4_TRCV_WQE_WQES; 1935 trecv_128->dw[31] = params->app_id; 1936 } 1937 return 0; 1938 } 1939 1940 int 1941 sli_fcp_cont_treceive64_wqe(struct sli4 *sli, void *buf, 1942 struct efc_dma *sgl, u32 first_data_sge, 1943 u16 sec_xri, u16 cq_id, u8 dif, u8 bs, 1944 struct sli_fcp_tgt_params *params) 1945 { 1946 int rc; 1947 1948 rc = sli_fcp_treceive64_wqe(sli, buf, sgl, first_data_sge, 1949 cq_id, dif, bs, params); 1950 if (!rc) { 1951 struct sli4_fcp_treceive64_wqe *trecv = buf; 1952 1953 trecv->command = SLI4_WQE_FCP_CONT_TRECEIVE64; 1954 trecv->dword5.sec_xri_tag = cpu_to_le16(sec_xri); 1955 } 1956 return rc; 1957 } 1958 1959 int 1960 sli_fcp_trsp64_wqe(struct sli4 *sli4, void *buf, struct efc_dma *sgl, 1961 u16 cq_id, u8 port_owned, struct sli_fcp_tgt_params *params) 1962 { 1963 struct sli4_fcp_trsp64_wqe *trsp = buf; 1964 struct sli4_fcp_128byte_wqe *trsp_128 = buf; 1965 1966 memset(buf, 0, sli4->wqe_size); 1967 1968 if (params->flags & SLI4_IO_AUTO_GOOD_RESPONSE) { 1969 trsp->class_ag_byte |= SLI4_TRSP_WQE_AG; 1970 } else { 1971 struct sli4_sge *sge = sgl->virt; 1972 struct sli4_bde *bptr; 1973 1974 if (sli4->params.sgl_pre_registered || port_owned) 1975 trsp->qosd_xbl_hlm_dbde_wqes |= SLI4_TRSP_WQE_DBDE; 1976 else 1977 trsp->qosd_xbl_hlm_dbde_wqes |= SLI4_TRSP_WQE_XBL; 1978 bptr = &trsp->bde; 1979 1980 bptr->bde_type_buflen = 1981 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 1982 (le32_to_cpu(sge[0].buffer_length) & 1983 SLI4_BDE_LEN_MASK)); 1984 bptr->u.data.low = sge[0].buffer_address_low; 1985 bptr->u.data.high = sge[0].buffer_address_high; 1986 1987 trsp->fcp_response_length = cpu_to_le32(params->xmit_len); 1988 } 1989 1990 if (params->flags & SLI4_IO_CONTINUATION) 1991 trsp->eat_xc_ccpe |= SLI4_TRSP_WQE_XC; 1992 1993 trsp->xri_tag = cpu_to_le16(params->xri); 1994 trsp->rpi = cpu_to_le16(params->rpi); 1995 1996 trsp->command = SLI4_WQE_FCP_TRSP64; 1997 trsp->class_ag_byte |= SLI4_GENERIC_CLASS_CLASS_3; 1998 1999 trsp->remote_xid = cpu_to_le16(params->ox_id); 2000 trsp->request_tag = cpu_to_le16(params->tag); 2001 if (params->flags & SLI4_IO_DNRX) 2002 trsp->ct_dnrx_byte |= SLI4_TRSP_WQE_DNRX; 2003 else 2004 trsp->ct_dnrx_byte &= ~SLI4_TRSP_WQE_DNRX; 2005 2006 trsp->lloc1_appid |= 0x1; 2007 trsp->cq_id = cpu_to_le16(cq_id); 2008 trsp->cmd_type_byte = SLI4_CMD_FCP_TRSP64_WQE; 2009 2010 /* The upper 7 bits of csctl is the priority */ 2011 if (params->cs_ctl & SLI4_MASK_CCP) { 2012 trsp->eat_xc_ccpe |= SLI4_TRSP_WQE_CCPE; 2013 trsp->ccp = (params->cs_ctl & SLI4_MASK_CCP); 2014 } 2015 2016 if (params->app_id && sli4->wqe_size == SLI4_WQE_EXT_BYTES && 2017 !(trsp->eat_xc_ccpe & SLI4_TRSP_WQE_EAT)) { 2018 trsp->lloc1_appid |= SLI4_TRSP_WQE_APPID; 2019 trsp->qosd_xbl_hlm_dbde_wqes |= SLI4_TRSP_WQE_WQES; 2020 trsp_128->dw[31] = params->app_id; 2021 } 2022 return 0; 2023 } 2024 2025 int 2026 sli_fcp_tsend64_wqe(struct sli4 *sli4, void *buf, struct efc_dma *sgl, 2027 u32 first_data_sge, u16 cq_id, u8 dif, u8 bs, 2028 struct sli_fcp_tgt_params *params) 2029 { 2030 struct sli4_fcp_tsend64_wqe *tsend = buf; 2031 struct sli4_fcp_128byte_wqe *tsend_128 = buf; 2032 struct sli4_sge *sge = NULL; 2033 struct sli4_bde *bptr; 2034 2035 memset(buf, 0, sli4->wqe_size); 2036 2037 if (!sgl || !sgl->virt) { 2038 efc_log_err(sli4, "bad parameter sgl=%p virt=%p\n", 2039 sgl, sgl ? sgl->virt : NULL); 2040 return -EIO; 2041 } 2042 sge = sgl->virt; 2043 2044 bptr = &tsend->bde; 2045 if (sli4->params.sgl_pre_registered) { 2046 tsend->ll_qd_xbl_hlm_iod_dbde &= ~SLI4_TSEND_WQE_XBL; 2047 2048 tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_WQE_DBDE; 2049 2050 bptr->bde_type_buflen = 2051 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 2052 (le32_to_cpu(sge[2].buffer_length) & 2053 SLI4_BDE_LEN_MASK)); 2054 2055 /* TSEND64_WQE specifies first two SGE are skipped (3rd is 2056 * valid) 2057 */ 2058 bptr->u.data.low = sge[2].buffer_address_low; 2059 bptr->u.data.high = sge[2].buffer_address_high; 2060 } else { 2061 tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_WQE_XBL; 2062 2063 /* if data is a single physical address, use a BDE */ 2064 if (!dif && 2065 params->xmit_len <= le32_to_cpu(sge[2].buffer_length)) { 2066 tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_WQE_DBDE; 2067 2068 bptr->bde_type_buflen = 2069 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 2070 (le32_to_cpu(sge[2].buffer_length) & 2071 SLI4_BDE_LEN_MASK)); 2072 /* 2073 * TSEND64_WQE specifies first two SGE are skipped 2074 * (i.e. 3rd is valid) 2075 */ 2076 bptr->u.data.low = 2077 sge[2].buffer_address_low; 2078 bptr->u.data.high = 2079 sge[2].buffer_address_high; 2080 } else { 2081 bptr->bde_type_buflen = 2082 cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) | 2083 (sgl->size & 2084 SLI4_BDE_LEN_MASK)); 2085 bptr->u.blp.low = 2086 cpu_to_le32(lower_32_bits(sgl->phys)); 2087 bptr->u.blp.high = 2088 cpu_to_le32(upper_32_bits(sgl->phys)); 2089 } 2090 } 2091 2092 tsend->relative_offset = cpu_to_le32(params->offset); 2093 2094 if (params->flags & SLI4_IO_CONTINUATION) 2095 tsend->dw10byte2 |= SLI4_TSEND_XC; 2096 2097 tsend->xri_tag = cpu_to_le16(params->xri); 2098 2099 tsend->rpi = cpu_to_le16(params->rpi); 2100 /* WQE uses relative offset */ 2101 tsend->class_pu_ar_byte |= 1 << SLI4_TSEND_WQE_PU_SHFT; 2102 2103 if (params->flags & SLI4_IO_AUTO_GOOD_RESPONSE) 2104 tsend->class_pu_ar_byte |= SLI4_TSEND_WQE_AR; 2105 2106 tsend->command = SLI4_WQE_FCP_TSEND64; 2107 tsend->class_pu_ar_byte |= SLI4_GENERIC_CLASS_CLASS_3; 2108 tsend->ct_byte |= SLI4_GENERIC_CONTEXT_RPI << SLI4_TSEND_CT_SHFT; 2109 tsend->ct_byte |= dif; 2110 tsend->ct_byte |= bs << SLI4_TSEND_BS_SHFT; 2111 2112 tsend->remote_xid = cpu_to_le16(params->ox_id); 2113 2114 tsend->request_tag = cpu_to_le16(params->tag); 2115 2116 tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_LEN_LOC_BIT2; 2117 2118 tsend->cq_id = cpu_to_le16(cq_id); 2119 2120 tsend->cmd_type_byte |= SLI4_CMD_FCP_TSEND64_WQE; 2121 2122 tsend->fcp_data_transmit_length = cpu_to_le32(params->xmit_len); 2123 2124 if (sli4->params.perf_hint) { 2125 bptr = &tsend->first_data_bde; 2126 bptr->bde_type_buflen = 2127 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 2128 (le32_to_cpu(sge[first_data_sge].buffer_length) & 2129 SLI4_BDE_LEN_MASK)); 2130 bptr->u.data.low = 2131 sge[first_data_sge].buffer_address_low; 2132 bptr->u.data.high = 2133 sge[first_data_sge].buffer_address_high; 2134 } 2135 2136 /* The upper 7 bits of csctl is the priority */ 2137 if (params->cs_ctl & SLI4_MASK_CCP) { 2138 tsend->dw10byte2 |= SLI4_TSEND_CCPE; 2139 tsend->ccp = (params->cs_ctl & SLI4_MASK_CCP); 2140 } 2141 2142 if (params->app_id && sli4->wqe_size == SLI4_WQE_EXT_BYTES && 2143 !(tsend->dw10byte2 & SLI4_TSEND_EAT)) { 2144 tsend->dw10byte0 |= SLI4_TSEND_APPID_VALID; 2145 tsend->ll_qd_xbl_hlm_iod_dbde |= SLI4_TSEND_WQES; 2146 tsend_128->dw[31] = params->app_id; 2147 } 2148 return 0; 2149 } 2150 2151 int 2152 sli_gen_request64_wqe(struct sli4 *sli4, void *buf, struct efc_dma *sgl, 2153 struct sli_ct_params *params) 2154 { 2155 struct sli4_gen_request64_wqe *gen = buf; 2156 struct sli4_sge *sge = NULL; 2157 struct sli4_bde *bptr; 2158 2159 memset(buf, 0, sli4->wqe_size); 2160 2161 if (!sgl || !sgl->virt) { 2162 efc_log_err(sli4, "bad parameter sgl=%p virt=%p\n", 2163 sgl, sgl ? sgl->virt : NULL); 2164 return -EIO; 2165 } 2166 sge = sgl->virt; 2167 bptr = &gen->bde; 2168 2169 if (sli4->params.sgl_pre_registered) { 2170 gen->dw10flags1 &= ~SLI4_GEN_REQ64_WQE_XBL; 2171 2172 gen->dw10flags1 |= SLI4_GEN_REQ64_WQE_DBDE; 2173 bptr->bde_type_buflen = 2174 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 2175 (params->xmit_len & SLI4_BDE_LEN_MASK)); 2176 2177 bptr->u.data.low = sge[0].buffer_address_low; 2178 bptr->u.data.high = sge[0].buffer_address_high; 2179 } else { 2180 gen->dw10flags1 |= SLI4_GEN_REQ64_WQE_XBL; 2181 2182 bptr->bde_type_buflen = 2183 cpu_to_le32((SLI4_BDE_TYPE_VAL(BLP)) | 2184 ((2 * sizeof(struct sli4_sge)) & 2185 SLI4_BDE_LEN_MASK)); 2186 2187 bptr->u.blp.low = 2188 cpu_to_le32(lower_32_bits(sgl->phys)); 2189 bptr->u.blp.high = 2190 cpu_to_le32(upper_32_bits(sgl->phys)); 2191 } 2192 2193 gen->request_payload_length = cpu_to_le32(params->xmit_len); 2194 gen->max_response_payload_length = cpu_to_le32(params->rsp_len); 2195 2196 gen->df_ctl = params->df_ctl; 2197 gen->type = params->type; 2198 gen->r_ctl = params->r_ctl; 2199 2200 gen->xri_tag = cpu_to_le16(params->xri); 2201 2202 gen->ct_byte = SLI4_GENERIC_CONTEXT_RPI << SLI4_GEN_REQ64_CT_SHFT; 2203 gen->context_tag = cpu_to_le16(params->rpi); 2204 2205 gen->class_byte = SLI4_GENERIC_CLASS_CLASS_3; 2206 2207 gen->command = SLI4_WQE_GEN_REQUEST64; 2208 2209 gen->timer = params->timeout; 2210 2211 gen->request_tag = cpu_to_le16(params->tag); 2212 2213 gen->dw10flags1 |= SLI4_GEN_REQ64_WQE_IOD; 2214 2215 gen->dw10flags0 |= SLI4_GEN_REQ64_WQE_QOSD; 2216 2217 gen->cmd_type_byte = SLI4_CMD_GEN_REQUEST64_WQE; 2218 2219 gen->cq_id = cpu_to_le16(SLI4_CQ_DEFAULT); 2220 2221 return 0; 2222 } 2223 2224 int 2225 sli_send_frame_wqe(struct sli4 *sli, void *buf, u8 sof, u8 eof, u32 *hdr, 2226 struct efc_dma *payload, u32 req_len, u8 timeout, u16 xri, 2227 u16 req_tag) 2228 { 2229 struct sli4_send_frame_wqe *sf = buf; 2230 2231 memset(buf, 0, sli->wqe_size); 2232 2233 sf->dw10flags1 |= SLI4_SF_WQE_DBDE; 2234 sf->bde.bde_type_buflen = cpu_to_le32(req_len & 2235 SLI4_BDE_LEN_MASK); 2236 sf->bde.u.data.low = cpu_to_le32(lower_32_bits(payload->phys)); 2237 sf->bde.u.data.high = cpu_to_le32(upper_32_bits(payload->phys)); 2238 2239 /* Copy FC header */ 2240 sf->fc_header_0_1[0] = cpu_to_le32(hdr[0]); 2241 sf->fc_header_0_1[1] = cpu_to_le32(hdr[1]); 2242 sf->fc_header_2_5[0] = cpu_to_le32(hdr[2]); 2243 sf->fc_header_2_5[1] = cpu_to_le32(hdr[3]); 2244 sf->fc_header_2_5[2] = cpu_to_le32(hdr[4]); 2245 sf->fc_header_2_5[3] = cpu_to_le32(hdr[5]); 2246 2247 sf->frame_length = cpu_to_le32(req_len); 2248 2249 sf->xri_tag = cpu_to_le16(xri); 2250 sf->dw7flags0 &= ~SLI4_SF_PU; 2251 sf->context_tag = 0; 2252 2253 sf->ct_byte &= ~SLI4_SF_CT; 2254 sf->command = SLI4_WQE_SEND_FRAME; 2255 sf->dw7flags0 |= SLI4_GENERIC_CLASS_CLASS_3; 2256 sf->timer = timeout; 2257 2258 sf->request_tag = cpu_to_le16(req_tag); 2259 sf->eof = eof; 2260 sf->sof = sof; 2261 2262 sf->dw10flags1 &= ~SLI4_SF_QOSD; 2263 sf->dw10flags0 |= SLI4_SF_LEN_LOC_BIT1; 2264 sf->dw10flags2 &= ~SLI4_SF_XC; 2265 2266 sf->dw10flags1 |= SLI4_SF_XBL; 2267 2268 sf->cmd_type_byte |= SLI4_CMD_SEND_FRAME_WQE; 2269 sf->cq_id = cpu_to_le16(0xffff); 2270 2271 return 0; 2272 } 2273 2274 int 2275 sli_xmit_bls_rsp64_wqe(struct sli4 *sli, void *buf, 2276 struct sli_bls_payload *payload, 2277 struct sli_bls_params *params) 2278 { 2279 struct sli4_xmit_bls_rsp_wqe *bls = buf; 2280 u32 dw_ridflags = 0; 2281 2282 /* 2283 * Callers can either specify RPI or S_ID, but not both 2284 */ 2285 if (params->rpi_registered && params->s_id != U32_MAX) { 2286 efc_log_info(sli, "S_ID specified for attached remote node %d\n", 2287 params->rpi); 2288 return -EIO; 2289 } 2290 2291 memset(buf, 0, sli->wqe_size); 2292 2293 if (payload->type == SLI4_SLI_BLS_ACC) { 2294 bls->payload_word0 = 2295 cpu_to_le32((payload->u.acc.seq_id_last << 16) | 2296 (payload->u.acc.seq_id_validity << 24)); 2297 bls->high_seq_cnt = payload->u.acc.high_seq_cnt; 2298 bls->low_seq_cnt = payload->u.acc.low_seq_cnt; 2299 } else if (payload->type == SLI4_SLI_BLS_RJT) { 2300 bls->payload_word0 = 2301 cpu_to_le32(*((u32 *)&payload->u.rjt)); 2302 dw_ridflags |= SLI4_BLS_RSP_WQE_AR; 2303 } else { 2304 efc_log_info(sli, "bad BLS type %#x\n", payload->type); 2305 return -EIO; 2306 } 2307 2308 bls->ox_id = payload->ox_id; 2309 bls->rx_id = payload->rx_id; 2310 2311 if (params->rpi_registered) { 2312 bls->dw8flags0 |= 2313 SLI4_GENERIC_CONTEXT_RPI << SLI4_BLS_RSP_WQE_CT_SHFT; 2314 bls->context_tag = cpu_to_le16(params->rpi); 2315 } else { 2316 bls->dw8flags0 |= 2317 SLI4_GENERIC_CONTEXT_VPI << SLI4_BLS_RSP_WQE_CT_SHFT; 2318 bls->context_tag = cpu_to_le16(params->vpi); 2319 2320 if (params->s_id != U32_MAX) 2321 bls->local_n_port_id_dword |= 2322 cpu_to_le32(params->s_id & 0x00ffffff); 2323 else 2324 bls->local_n_port_id_dword |= 2325 cpu_to_le32(params->s_id & 0x00ffffff); 2326 2327 dw_ridflags = (dw_ridflags & ~SLI4_BLS_RSP_RID) | 2328 (params->d_id & SLI4_BLS_RSP_RID); 2329 2330 bls->temporary_rpi = cpu_to_le16(params->rpi); 2331 } 2332 2333 bls->xri_tag = cpu_to_le16(params->xri); 2334 2335 bls->dw8flags1 |= SLI4_GENERIC_CLASS_CLASS_3; 2336 2337 bls->command = SLI4_WQE_XMIT_BLS_RSP; 2338 2339 bls->request_tag = cpu_to_le16(params->tag); 2340 2341 bls->dw11flags1 |= SLI4_BLS_RSP_WQE_QOSD; 2342 2343 bls->remote_id_dword = cpu_to_le32(dw_ridflags); 2344 bls->cq_id = cpu_to_le16(SLI4_CQ_DEFAULT); 2345 2346 bls->dw12flags0 |= SLI4_CMD_XMIT_BLS_RSP64_WQE; 2347 2348 return 0; 2349 } 2350 2351 int 2352 sli_xmit_els_rsp64_wqe(struct sli4 *sli, void *buf, struct efc_dma *rsp, 2353 struct sli_els_params *params) 2354 { 2355 struct sli4_xmit_els_rsp64_wqe *els = buf; 2356 2357 memset(buf, 0, sli->wqe_size); 2358 2359 if (sli->params.sgl_pre_registered) 2360 els->flags2 |= SLI4_ELS_DBDE; 2361 else 2362 els->flags2 |= SLI4_ELS_XBL; 2363 2364 els->els_response_payload.bde_type_buflen = 2365 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 2366 (params->rsp_len & SLI4_BDE_LEN_MASK)); 2367 els->els_response_payload.u.data.low = 2368 cpu_to_le32(lower_32_bits(rsp->phys)); 2369 els->els_response_payload.u.data.high = 2370 cpu_to_le32(upper_32_bits(rsp->phys)); 2371 2372 els->els_response_payload_length = cpu_to_le32(params->rsp_len); 2373 2374 els->xri_tag = cpu_to_le16(params->xri); 2375 2376 els->class_byte |= SLI4_GENERIC_CLASS_CLASS_3; 2377 2378 els->command = SLI4_WQE_ELS_RSP64; 2379 2380 els->request_tag = cpu_to_le16(params->tag); 2381 2382 els->ox_id = cpu_to_le16(params->ox_id); 2383 2384 els->flags2 |= SLI4_ELS_QOSD; 2385 2386 els->cmd_type_wqec = SLI4_ELS_REQUEST64_CMD_GEN; 2387 2388 els->cq_id = cpu_to_le16(SLI4_CQ_DEFAULT); 2389 2390 if (params->rpi_registered) { 2391 els->ct_byte |= 2392 SLI4_GENERIC_CONTEXT_RPI << SLI4_ELS_CT_OFFSET; 2393 els->context_tag = cpu_to_le16(params->rpi); 2394 return 0; 2395 } 2396 2397 els->ct_byte |= SLI4_GENERIC_CONTEXT_VPI << SLI4_ELS_CT_OFFSET; 2398 els->context_tag = cpu_to_le16(params->vpi); 2399 els->rid_dw = cpu_to_le32(params->d_id & SLI4_ELS_RID); 2400 els->temporary_rpi = cpu_to_le16(params->rpi); 2401 if (params->s_id != U32_MAX) { 2402 els->sid_dw |= 2403 cpu_to_le32(SLI4_ELS_SP | (params->s_id & SLI4_ELS_SID)); 2404 } 2405 2406 return 0; 2407 } 2408 2409 int 2410 sli_xmit_sequence64_wqe(struct sli4 *sli4, void *buf, struct efc_dma *payload, 2411 struct sli_ct_params *params) 2412 { 2413 struct sli4_xmit_sequence64_wqe *xmit = buf; 2414 2415 memset(buf, 0, sli4->wqe_size); 2416 2417 if (!payload || !payload->virt) { 2418 efc_log_err(sli4, "bad parameter sgl=%p virt=%p\n", 2419 payload, payload ? payload->virt : NULL); 2420 return -EIO; 2421 } 2422 2423 if (sli4->params.sgl_pre_registered) 2424 xmit->dw10w0 |= cpu_to_le16(SLI4_SEQ_WQE_DBDE); 2425 else 2426 xmit->dw10w0 |= cpu_to_le16(SLI4_SEQ_WQE_XBL); 2427 2428 xmit->bde.bde_type_buflen = 2429 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 2430 (params->rsp_len & SLI4_BDE_LEN_MASK)); 2431 xmit->bde.u.data.low = 2432 cpu_to_le32(lower_32_bits(payload->phys)); 2433 xmit->bde.u.data.high = 2434 cpu_to_le32(upper_32_bits(payload->phys)); 2435 xmit->sequence_payload_len = cpu_to_le32(params->rsp_len); 2436 2437 xmit->remote_n_port_id_dword |= cpu_to_le32(params->d_id & 0x00ffffff); 2438 2439 xmit->relative_offset = 0; 2440 2441 /* sequence initiative - this matches what is seen from 2442 * FC switches in response to FCGS commands 2443 */ 2444 xmit->dw5flags0 &= (~SLI4_SEQ_WQE_SI); 2445 xmit->dw5flags0 &= (~SLI4_SEQ_WQE_FT);/* force transmit */ 2446 xmit->dw5flags0 &= (~SLI4_SEQ_WQE_XO);/* exchange responder */ 2447 xmit->dw5flags0 |= SLI4_SEQ_WQE_LS;/* last in seqence */ 2448 xmit->df_ctl = params->df_ctl; 2449 xmit->type = params->type; 2450 xmit->r_ctl = params->r_ctl; 2451 2452 xmit->xri_tag = cpu_to_le16(params->xri); 2453 xmit->context_tag = cpu_to_le16(params->rpi); 2454 2455 xmit->dw7flags0 &= ~SLI4_SEQ_WQE_DIF; 2456 xmit->dw7flags0 |= 2457 SLI4_GENERIC_CONTEXT_RPI << SLI4_SEQ_WQE_CT_SHIFT; 2458 xmit->dw7flags0 &= ~SLI4_SEQ_WQE_BS; 2459 2460 xmit->command = SLI4_WQE_XMIT_SEQUENCE64; 2461 xmit->dw7flags1 |= SLI4_GENERIC_CLASS_CLASS_3; 2462 xmit->dw7flags1 &= ~SLI4_SEQ_WQE_PU; 2463 xmit->timer = params->timeout; 2464 2465 xmit->abort_tag = 0; 2466 xmit->request_tag = cpu_to_le16(params->tag); 2467 xmit->remote_xid = cpu_to_le16(params->ox_id); 2468 2469 xmit->dw10w0 |= 2470 cpu_to_le16(SLI4_ELS_REQUEST64_DIR_READ << SLI4_SEQ_WQE_IOD_SHIFT); 2471 2472 xmit->cmd_type_wqec_byte |= SLI4_CMD_XMIT_SEQUENCE64_WQE; 2473 2474 xmit->dw10w0 |= cpu_to_le16(2 << SLI4_SEQ_WQE_LEN_LOC_SHIFT); 2475 2476 xmit->cq_id = cpu_to_le16(0xFFFF); 2477 2478 return 0; 2479 } 2480 2481 int 2482 sli_requeue_xri_wqe(struct sli4 *sli4, void *buf, u16 xri, u16 tag, u16 cq_id) 2483 { 2484 struct sli4_requeue_xri_wqe *requeue = buf; 2485 2486 memset(buf, 0, sli4->wqe_size); 2487 2488 requeue->command = SLI4_WQE_REQUEUE_XRI; 2489 requeue->xri_tag = cpu_to_le16(xri); 2490 requeue->request_tag = cpu_to_le16(tag); 2491 requeue->flags2 |= cpu_to_le16(SLI4_REQU_XRI_WQE_XC); 2492 requeue->flags1 |= cpu_to_le16(SLI4_REQU_XRI_WQE_QOSD); 2493 requeue->cq_id = cpu_to_le16(cq_id); 2494 requeue->cmd_type_wqec_byte = SLI4_CMD_REQUEUE_XRI_WQE; 2495 return 0; 2496 } 2497 2498 int 2499 sli_fc_process_link_attention(struct sli4 *sli4, void *acqe) 2500 { 2501 struct sli4_link_attention *link_attn = acqe; 2502 struct sli4_link_event event = { 0 }; 2503 2504 efc_log_info(sli4, "link=%d attn_type=%#x top=%#x speed=%#x pfault=%#x\n", 2505 link_attn->link_number, link_attn->attn_type, 2506 link_attn->topology, link_attn->port_speed, 2507 link_attn->port_fault); 2508 efc_log_info(sli4, "shared_lnk_status=%#x logl_lnk_speed=%#x evttag=%#x\n", 2509 link_attn->shared_link_status, 2510 le16_to_cpu(link_attn->logical_link_speed), 2511 le32_to_cpu(link_attn->event_tag)); 2512 2513 if (!sli4->link) 2514 return -EIO; 2515 2516 event.medium = SLI4_LINK_MEDIUM_FC; 2517 2518 switch (link_attn->attn_type) { 2519 case SLI4_LNK_ATTN_TYPE_LINK_UP: 2520 event.status = SLI4_LINK_STATUS_UP; 2521 break; 2522 case SLI4_LNK_ATTN_TYPE_LINK_DOWN: 2523 event.status = SLI4_LINK_STATUS_DOWN; 2524 break; 2525 case SLI4_LNK_ATTN_TYPE_NO_HARD_ALPA: 2526 efc_log_info(sli4, "attn_type: no hard alpa\n"); 2527 event.status = SLI4_LINK_STATUS_NO_ALPA; 2528 break; 2529 default: 2530 efc_log_info(sli4, "attn_type: unknown\n"); 2531 break; 2532 } 2533 2534 switch (link_attn->event_type) { 2535 case SLI4_EVENT_LINK_ATTENTION: 2536 break; 2537 case SLI4_EVENT_SHARED_LINK_ATTENTION: 2538 efc_log_info(sli4, "event_type: FC shared link event\n"); 2539 break; 2540 default: 2541 efc_log_info(sli4, "event_type: unknown\n"); 2542 break; 2543 } 2544 2545 switch (link_attn->topology) { 2546 case SLI4_LNK_ATTN_P2P: 2547 event.topology = SLI4_LINK_TOPO_NON_FC_AL; 2548 break; 2549 case SLI4_LNK_ATTN_FC_AL: 2550 event.topology = SLI4_LINK_TOPO_FC_AL; 2551 break; 2552 case SLI4_LNK_ATTN_INTERNAL_LOOPBACK: 2553 efc_log_info(sli4, "topology Internal loopback\n"); 2554 event.topology = SLI4_LINK_TOPO_LOOPBACK_INTERNAL; 2555 break; 2556 case SLI4_LNK_ATTN_SERDES_LOOPBACK: 2557 efc_log_info(sli4, "topology serdes loopback\n"); 2558 event.topology = SLI4_LINK_TOPO_LOOPBACK_EXTERNAL; 2559 break; 2560 default: 2561 efc_log_info(sli4, "topology: unknown\n"); 2562 break; 2563 } 2564 2565 event.speed = link_attn->port_speed * 1000; 2566 2567 sli4->link(sli4->link_arg, (void *)&event); 2568 2569 return 0; 2570 } 2571 2572 int 2573 sli_fc_cqe_parse(struct sli4 *sli4, struct sli4_queue *cq, 2574 u8 *cqe, enum sli4_qentry *etype, u16 *r_id) 2575 { 2576 u8 code = cqe[SLI4_CQE_CODE_OFFSET]; 2577 int rc; 2578 2579 switch (code) { 2580 case SLI4_CQE_CODE_WORK_REQUEST_COMPLETION: 2581 { 2582 struct sli4_fc_wcqe *wcqe = (void *)cqe; 2583 2584 *etype = SLI4_QENTRY_WQ; 2585 *r_id = le16_to_cpu(wcqe->request_tag); 2586 rc = wcqe->status; 2587 2588 /* Flag errors except for FCP_RSP_FAILURE */ 2589 if (rc && rc != SLI4_FC_WCQE_STATUS_FCP_RSP_FAILURE) { 2590 efc_log_info(sli4, "WCQE: status=%#x hw_status=%#x tag=%#x\n", 2591 wcqe->status, wcqe->hw_status, 2592 le16_to_cpu(wcqe->request_tag)); 2593 efc_log_info(sli4, "w1=%#x w2=%#x xb=%d\n", 2594 le32_to_cpu(wcqe->wqe_specific_1), 2595 le32_to_cpu(wcqe->wqe_specific_2), 2596 (wcqe->flags & SLI4_WCQE_XB)); 2597 efc_log_info(sli4, " %08X %08X %08X %08X\n", 2598 ((u32 *)cqe)[0], ((u32 *)cqe)[1], 2599 ((u32 *)cqe)[2], ((u32 *)cqe)[3]); 2600 } 2601 2602 break; 2603 } 2604 case SLI4_CQE_CODE_RQ_ASYNC: 2605 { 2606 struct sli4_fc_async_rcqe *rcqe = (void *)cqe; 2607 2608 *etype = SLI4_QENTRY_RQ; 2609 *r_id = le16_to_cpu(rcqe->fcfi_rq_id_word) & SLI4_RACQE_RQ_ID; 2610 rc = rcqe->status; 2611 break; 2612 } 2613 case SLI4_CQE_CODE_RQ_ASYNC_V1: 2614 { 2615 struct sli4_fc_async_rcqe_v1 *rcqe = (void *)cqe; 2616 2617 *etype = SLI4_QENTRY_RQ; 2618 *r_id = le16_to_cpu(rcqe->rq_id); 2619 rc = rcqe->status; 2620 break; 2621 } 2622 case SLI4_CQE_CODE_OPTIMIZED_WRITE_CMD: 2623 { 2624 struct sli4_fc_optimized_write_cmd_cqe *optcqe = (void *)cqe; 2625 2626 *etype = SLI4_QENTRY_OPT_WRITE_CMD; 2627 *r_id = le16_to_cpu(optcqe->rq_id); 2628 rc = optcqe->status; 2629 break; 2630 } 2631 case SLI4_CQE_CODE_OPTIMIZED_WRITE_DATA: 2632 { 2633 struct sli4_fc_optimized_write_data_cqe *dcqe = (void *)cqe; 2634 2635 *etype = SLI4_QENTRY_OPT_WRITE_DATA; 2636 *r_id = le16_to_cpu(dcqe->xri); 2637 rc = dcqe->status; 2638 2639 /* Flag errors */ 2640 if (rc != SLI4_FC_WCQE_STATUS_SUCCESS) { 2641 efc_log_info(sli4, "Optimized DATA CQE: status=%#x\n", 2642 dcqe->status); 2643 efc_log_info(sli4, "hstat=%#x xri=%#x dpl=%#x w3=%#x xb=%d\n", 2644 dcqe->hw_status, le16_to_cpu(dcqe->xri), 2645 le32_to_cpu(dcqe->total_data_placed), 2646 ((u32 *)cqe)[3], 2647 (dcqe->flags & SLI4_OCQE_XB)); 2648 } 2649 break; 2650 } 2651 case SLI4_CQE_CODE_RQ_COALESCING: 2652 { 2653 struct sli4_fc_coalescing_rcqe *rcqe = (void *)cqe; 2654 2655 *etype = SLI4_QENTRY_RQ; 2656 *r_id = le16_to_cpu(rcqe->rq_id); 2657 rc = rcqe->status; 2658 break; 2659 } 2660 case SLI4_CQE_CODE_XRI_ABORTED: 2661 { 2662 struct sli4_fc_xri_aborted_cqe *xa = (void *)cqe; 2663 2664 *etype = SLI4_QENTRY_XABT; 2665 *r_id = le16_to_cpu(xa->xri); 2666 rc = 0; 2667 break; 2668 } 2669 case SLI4_CQE_CODE_RELEASE_WQE: 2670 { 2671 struct sli4_fc_wqec *wqec = (void *)cqe; 2672 2673 *etype = SLI4_QENTRY_WQ_RELEASE; 2674 *r_id = le16_to_cpu(wqec->wq_id); 2675 rc = 0; 2676 break; 2677 } 2678 default: 2679 efc_log_info(sli4, "CQE completion code %d not handled\n", 2680 code); 2681 *etype = SLI4_QENTRY_MAX; 2682 *r_id = U16_MAX; 2683 rc = -EINVAL; 2684 } 2685 2686 return rc; 2687 } 2688 2689 u32 2690 sli_fc_response_length(struct sli4 *sli4, u8 *cqe) 2691 { 2692 struct sli4_fc_wcqe *wcqe = (void *)cqe; 2693 2694 return le32_to_cpu(wcqe->wqe_specific_1); 2695 } 2696 2697 u32 2698 sli_fc_io_length(struct sli4 *sli4, u8 *cqe) 2699 { 2700 struct sli4_fc_wcqe *wcqe = (void *)cqe; 2701 2702 return le32_to_cpu(wcqe->wqe_specific_1); 2703 } 2704 2705 int 2706 sli_fc_els_did(struct sli4 *sli4, u8 *cqe, u32 *d_id) 2707 { 2708 struct sli4_fc_wcqe *wcqe = (void *)cqe; 2709 2710 *d_id = 0; 2711 2712 if (wcqe->status) 2713 return -EIO; 2714 *d_id = le32_to_cpu(wcqe->wqe_specific_2) & 0x00ffffff; 2715 return 0; 2716 } 2717 2718 u32 2719 sli_fc_ext_status(struct sli4 *sli4, u8 *cqe) 2720 { 2721 struct sli4_fc_wcqe *wcqe = (void *)cqe; 2722 u32 mask; 2723 2724 switch (wcqe->status) { 2725 case SLI4_FC_WCQE_STATUS_FCP_RSP_FAILURE: 2726 mask = U32_MAX; 2727 break; 2728 case SLI4_FC_WCQE_STATUS_LOCAL_REJECT: 2729 case SLI4_FC_WCQE_STATUS_CMD_REJECT: 2730 mask = 0xff; 2731 break; 2732 case SLI4_FC_WCQE_STATUS_NPORT_RJT: 2733 case SLI4_FC_WCQE_STATUS_FABRIC_RJT: 2734 case SLI4_FC_WCQE_STATUS_NPORT_BSY: 2735 case SLI4_FC_WCQE_STATUS_FABRIC_BSY: 2736 case SLI4_FC_WCQE_STATUS_LS_RJT: 2737 mask = U32_MAX; 2738 break; 2739 case SLI4_FC_WCQE_STATUS_DI_ERROR: 2740 mask = U32_MAX; 2741 break; 2742 default: 2743 mask = 0; 2744 } 2745 2746 return le32_to_cpu(wcqe->wqe_specific_2) & mask; 2747 } 2748 2749 int 2750 sli_fc_rqe_rqid_and_index(struct sli4 *sli4, u8 *cqe, u16 *rq_id, u32 *index) 2751 { 2752 int rc = -EIO; 2753 u8 code = 0; 2754 u16 rq_element_index; 2755 2756 *rq_id = 0; 2757 *index = U32_MAX; 2758 2759 code = cqe[SLI4_CQE_CODE_OFFSET]; 2760 2761 /* Retrieve the RQ index from the completion */ 2762 if (code == SLI4_CQE_CODE_RQ_ASYNC) { 2763 struct sli4_fc_async_rcqe *rcqe = (void *)cqe; 2764 2765 *rq_id = le16_to_cpu(rcqe->fcfi_rq_id_word) & SLI4_RACQE_RQ_ID; 2766 rq_element_index = 2767 le16_to_cpu(rcqe->rq_elmt_indx_word) & SLI4_RACQE_RQ_EL_INDX; 2768 *index = rq_element_index; 2769 if (rcqe->status == SLI4_FC_ASYNC_RQ_SUCCESS) { 2770 rc = 0; 2771 } else { 2772 rc = rcqe->status; 2773 efc_log_info(sli4, "status=%02x (%s) rq_id=%d\n", 2774 rcqe->status, 2775 sli_fc_get_status_string(rcqe->status), 2776 le16_to_cpu(rcqe->fcfi_rq_id_word) & 2777 SLI4_RACQE_RQ_ID); 2778 2779 efc_log_info(sli4, "pdpl=%x sof=%02x eof=%02x hdpl=%x\n", 2780 le16_to_cpu(rcqe->data_placement_length), 2781 rcqe->sof_byte, rcqe->eof_byte, 2782 rcqe->hdpl_byte & SLI4_RACQE_HDPL); 2783 } 2784 } else if (code == SLI4_CQE_CODE_RQ_ASYNC_V1) { 2785 struct sli4_fc_async_rcqe_v1 *rcqe_v1 = (void *)cqe; 2786 2787 *rq_id = le16_to_cpu(rcqe_v1->rq_id); 2788 rq_element_index = 2789 (le16_to_cpu(rcqe_v1->rq_elmt_indx_word) & 2790 SLI4_RACQE_RQ_EL_INDX); 2791 *index = rq_element_index; 2792 if (rcqe_v1->status == SLI4_FC_ASYNC_RQ_SUCCESS) { 2793 rc = 0; 2794 } else { 2795 rc = rcqe_v1->status; 2796 efc_log_info(sli4, "status=%02x (%s) rq_id=%d, index=%x\n", 2797 rcqe_v1->status, 2798 sli_fc_get_status_string(rcqe_v1->status), 2799 le16_to_cpu(rcqe_v1->rq_id), rq_element_index); 2800 2801 efc_log_info(sli4, "pdpl=%x sof=%02x eof=%02x hdpl=%x\n", 2802 le16_to_cpu(rcqe_v1->data_placement_length), 2803 rcqe_v1->sof_byte, rcqe_v1->eof_byte, 2804 rcqe_v1->hdpl_byte & SLI4_RACQE_HDPL); 2805 } 2806 } else if (code == SLI4_CQE_CODE_OPTIMIZED_WRITE_CMD) { 2807 struct sli4_fc_optimized_write_cmd_cqe *optcqe = (void *)cqe; 2808 2809 *rq_id = le16_to_cpu(optcqe->rq_id); 2810 *index = le16_to_cpu(optcqe->w1) & SLI4_OCQE_RQ_EL_INDX; 2811 if (optcqe->status == SLI4_FC_ASYNC_RQ_SUCCESS) { 2812 rc = 0; 2813 } else { 2814 rc = optcqe->status; 2815 efc_log_info(sli4, "stat=%02x (%s) rqid=%d, idx=%x pdpl=%x\n", 2816 optcqe->status, 2817 sli_fc_get_status_string(optcqe->status), 2818 le16_to_cpu(optcqe->rq_id), *index, 2819 le16_to_cpu(optcqe->data_placement_length)); 2820 2821 efc_log_info(sli4, "hdpl=%x oox=%d agxr=%d xri=0x%x rpi=%x\n", 2822 (optcqe->hdpl_vld & SLI4_OCQE_HDPL), 2823 (optcqe->flags1 & SLI4_OCQE_OOX), 2824 (optcqe->flags1 & SLI4_OCQE_AGXR), 2825 optcqe->xri, le16_to_cpu(optcqe->rpi)); 2826 } 2827 } else if (code == SLI4_CQE_CODE_RQ_COALESCING) { 2828 struct sli4_fc_coalescing_rcqe *rcqe = (void *)cqe; 2829 2830 rq_element_index = (le16_to_cpu(rcqe->rq_elmt_indx_word) & 2831 SLI4_RCQE_RQ_EL_INDX); 2832 2833 *rq_id = le16_to_cpu(rcqe->rq_id); 2834 if (rcqe->status == SLI4_FC_COALESCE_RQ_SUCCESS) { 2835 *index = rq_element_index; 2836 rc = 0; 2837 } else { 2838 *index = U32_MAX; 2839 rc = rcqe->status; 2840 2841 efc_log_info(sli4, "stat=%02x (%s) rq_id=%d, idx=%x\n", 2842 rcqe->status, 2843 sli_fc_get_status_string(rcqe->status), 2844 le16_to_cpu(rcqe->rq_id), rq_element_index); 2845 efc_log_info(sli4, "rq_id=%#x sdpl=%x\n", 2846 le16_to_cpu(rcqe->rq_id), 2847 le16_to_cpu(rcqe->seq_placement_length)); 2848 } 2849 } else { 2850 struct sli4_fc_async_rcqe *rcqe = (void *)cqe; 2851 2852 *index = U32_MAX; 2853 rc = rcqe->status; 2854 2855 efc_log_info(sli4, "status=%02x rq_id=%d, index=%x pdpl=%x\n", 2856 rcqe->status, 2857 le16_to_cpu(rcqe->fcfi_rq_id_word) & SLI4_RACQE_RQ_ID, 2858 (le16_to_cpu(rcqe->rq_elmt_indx_word) & SLI4_RACQE_RQ_EL_INDX), 2859 le16_to_cpu(rcqe->data_placement_length)); 2860 efc_log_info(sli4, "sof=%02x eof=%02x hdpl=%x\n", 2861 rcqe->sof_byte, rcqe->eof_byte, 2862 rcqe->hdpl_byte & SLI4_RACQE_HDPL); 2863 } 2864 2865 return rc; 2866 } 2867 2868 static int 2869 sli_bmbx_wait(struct sli4 *sli4, u32 msec) 2870 { 2871 u32 val; 2872 unsigned long end; 2873 2874 /* Wait for the bootstrap mailbox to report "ready" */ 2875 end = jiffies + msecs_to_jiffies(msec); 2876 do { 2877 val = readl(sli4->reg[0] + SLI4_BMBX_REG); 2878 if (val & SLI4_BMBX_RDY) 2879 return 0; 2880 2881 usleep_range(1000, 2000); 2882 } while (time_before(jiffies, end)); 2883 2884 return -EIO; 2885 } 2886 2887 static int 2888 sli_bmbx_write(struct sli4 *sli4) 2889 { 2890 u32 val; 2891 2892 /* write buffer location to bootstrap mailbox register */ 2893 val = sli_bmbx_write_hi(sli4->bmbx.phys); 2894 writel(val, (sli4->reg[0] + SLI4_BMBX_REG)); 2895 2896 if (sli_bmbx_wait(sli4, SLI4_BMBX_DELAY_US)) { 2897 efc_log_crit(sli4, "BMBX WRITE_HI failed\n"); 2898 return -EIO; 2899 } 2900 val = sli_bmbx_write_lo(sli4->bmbx.phys); 2901 writel(val, (sli4->reg[0] + SLI4_BMBX_REG)); 2902 2903 /* wait for SLI Port to set ready bit */ 2904 return sli_bmbx_wait(sli4, SLI4_BMBX_TIMEOUT_MSEC); 2905 } 2906 2907 int 2908 sli_bmbx_command(struct sli4 *sli4) 2909 { 2910 void *cqe = (u8 *)sli4->bmbx.virt + SLI4_BMBX_SIZE; 2911 2912 if (sli_fw_error_status(sli4) > 0) { 2913 efc_log_crit(sli4, "Chip is in an error state -Mailbox command rejected"); 2914 efc_log_crit(sli4, " status=%#x error1=%#x error2=%#x\n", 2915 sli_reg_read_status(sli4), 2916 sli_reg_read_err1(sli4), 2917 sli_reg_read_err2(sli4)); 2918 return -EIO; 2919 } 2920 2921 /* Submit a command to the bootstrap mailbox and check the status */ 2922 if (sli_bmbx_write(sli4)) { 2923 efc_log_crit(sli4, "bmbx write fail phys=%pad reg=%#x\n", 2924 &sli4->bmbx.phys, readl(sli4->reg[0] + SLI4_BMBX_REG)); 2925 return -EIO; 2926 } 2927 2928 /* check completion queue entry status */ 2929 if (le32_to_cpu(((struct sli4_mcqe *)cqe)->dw3_flags) & 2930 SLI4_MCQE_VALID) { 2931 return sli_cqe_mq(sli4, cqe); 2932 } 2933 efc_log_crit(sli4, "invalid or wrong type\n"); 2934 return -EIO; 2935 } 2936 2937 int 2938 sli_cmd_config_link(struct sli4 *sli4, void *buf) 2939 { 2940 struct sli4_cmd_config_link *config_link = buf; 2941 2942 memset(buf, 0, SLI4_BMBX_SIZE); 2943 2944 config_link->hdr.command = SLI4_MBX_CMD_CONFIG_LINK; 2945 2946 /* Port interprets zero in a field as "use default value" */ 2947 2948 return 0; 2949 } 2950 2951 int 2952 sli_cmd_down_link(struct sli4 *sli4, void *buf) 2953 { 2954 struct sli4_mbox_command_header *hdr = buf; 2955 2956 memset(buf, 0, SLI4_BMBX_SIZE); 2957 2958 hdr->command = SLI4_MBX_CMD_DOWN_LINK; 2959 2960 /* Port interprets zero in a field as "use default value" */ 2961 2962 return 0; 2963 } 2964 2965 int 2966 sli_cmd_dump_type4(struct sli4 *sli4, void *buf, u16 wki) 2967 { 2968 struct sli4_cmd_dump4 *cmd = buf; 2969 2970 memset(buf, 0, SLI4_BMBX_SIZE); 2971 2972 cmd->hdr.command = SLI4_MBX_CMD_DUMP; 2973 cmd->type_dword = cpu_to_le32(0x4); 2974 cmd->wki_selection = cpu_to_le16(wki); 2975 return 0; 2976 } 2977 2978 int 2979 sli_cmd_common_read_transceiver_data(struct sli4 *sli4, void *buf, u32 page_num, 2980 struct efc_dma *dma) 2981 { 2982 struct sli4_rqst_cmn_read_transceiver_data *req = NULL; 2983 u32 psize; 2984 2985 if (!dma) 2986 psize = SLI4_CFG_PYLD_LENGTH(cmn_read_transceiver_data); 2987 else 2988 psize = dma->size; 2989 2990 req = sli_config_cmd_init(sli4, buf, psize, dma); 2991 if (!req) 2992 return -EIO; 2993 2994 sli_cmd_fill_hdr(&req->hdr, SLI4_CMN_READ_TRANS_DATA, 2995 SLI4_SUBSYSTEM_COMMON, CMD_V0, 2996 SLI4_RQST_PYLD_LEN(cmn_read_transceiver_data)); 2997 2998 req->page_number = cpu_to_le32(page_num); 2999 req->port = cpu_to_le32(sli4->port_number); 3000 3001 return 0; 3002 } 3003 3004 int 3005 sli_cmd_read_link_stats(struct sli4 *sli4, void *buf, u8 req_ext_counters, 3006 u8 clear_overflow_flags, 3007 u8 clear_all_counters) 3008 { 3009 struct sli4_cmd_read_link_stats *cmd = buf; 3010 u32 flags; 3011 3012 memset(buf, 0, SLI4_BMBX_SIZE); 3013 3014 cmd->hdr.command = SLI4_MBX_CMD_READ_LNK_STAT; 3015 3016 flags = 0; 3017 if (req_ext_counters) 3018 flags |= SLI4_READ_LNKSTAT_REC; 3019 if (clear_all_counters) 3020 flags |= SLI4_READ_LNKSTAT_CLRC; 3021 if (clear_overflow_flags) 3022 flags |= SLI4_READ_LNKSTAT_CLOF; 3023 3024 cmd->dw1_flags = cpu_to_le32(flags); 3025 return 0; 3026 } 3027 3028 int 3029 sli_cmd_read_status(struct sli4 *sli4, void *buf, u8 clear_counters) 3030 { 3031 struct sli4_cmd_read_status *cmd = buf; 3032 u32 flags = 0; 3033 3034 memset(buf, 0, SLI4_BMBX_SIZE); 3035 3036 cmd->hdr.command = SLI4_MBX_CMD_READ_STATUS; 3037 if (clear_counters) 3038 flags |= SLI4_READSTATUS_CLEAR_COUNTERS; 3039 else 3040 flags &= ~SLI4_READSTATUS_CLEAR_COUNTERS; 3041 3042 cmd->dw1_flags = cpu_to_le32(flags); 3043 return 0; 3044 } 3045 3046 int 3047 sli_cmd_init_link(struct sli4 *sli4, void *buf, u32 speed, u8 reset_alpa) 3048 { 3049 struct sli4_cmd_init_link *init_link = buf; 3050 u32 flags = 0; 3051 3052 memset(buf, 0, SLI4_BMBX_SIZE); 3053 3054 init_link->hdr.command = SLI4_MBX_CMD_INIT_LINK; 3055 3056 init_link->sel_reset_al_pa_dword = 3057 cpu_to_le32(reset_alpa); 3058 flags &= ~SLI4_INIT_LINK_F_LOOPBACK; 3059 3060 init_link->link_speed_sel_code = cpu_to_le32(speed); 3061 switch (speed) { 3062 case SLI4_LINK_SPEED_1G: 3063 case SLI4_LINK_SPEED_2G: 3064 case SLI4_LINK_SPEED_4G: 3065 case SLI4_LINK_SPEED_8G: 3066 case SLI4_LINK_SPEED_16G: 3067 case SLI4_LINK_SPEED_32G: 3068 case SLI4_LINK_SPEED_64G: 3069 flags |= SLI4_INIT_LINK_F_FIXED_SPEED; 3070 break; 3071 case SLI4_LINK_SPEED_10G: 3072 efc_log_info(sli4, "unsupported FC speed %d\n", speed); 3073 init_link->flags0 = cpu_to_le32(flags); 3074 return -EIO; 3075 } 3076 3077 switch (sli4->topology) { 3078 case SLI4_READ_CFG_TOPO_FC: 3079 /* Attempt P2P but failover to FC-AL */ 3080 flags |= SLI4_INIT_LINK_F_FAIL_OVER; 3081 flags |= SLI4_INIT_LINK_F_P2P_FAIL_OVER; 3082 break; 3083 case SLI4_READ_CFG_TOPO_FC_AL: 3084 flags |= SLI4_INIT_LINK_F_FCAL_ONLY; 3085 if (speed == SLI4_LINK_SPEED_16G || 3086 speed == SLI4_LINK_SPEED_32G) { 3087 efc_log_info(sli4, "unsupported FC-AL speed %d\n", 3088 speed); 3089 init_link->flags0 = cpu_to_le32(flags); 3090 return -EIO; 3091 } 3092 break; 3093 case SLI4_READ_CFG_TOPO_NON_FC_AL: 3094 flags |= SLI4_INIT_LINK_F_P2P_ONLY; 3095 break; 3096 default: 3097 3098 efc_log_info(sli4, "unsupported topology %#x\n", sli4->topology); 3099 3100 init_link->flags0 = cpu_to_le32(flags); 3101 return -EIO; 3102 } 3103 3104 flags &= ~SLI4_INIT_LINK_F_UNFAIR; 3105 flags &= ~SLI4_INIT_LINK_F_NO_LIRP; 3106 flags &= ~SLI4_INIT_LINK_F_LOOP_VALID_CHK; 3107 flags &= ~SLI4_INIT_LINK_F_NO_LISA; 3108 flags &= ~SLI4_INIT_LINK_F_PICK_HI_ALPA; 3109 init_link->flags0 = cpu_to_le32(flags); 3110 3111 return 0; 3112 } 3113 3114 int 3115 sli_cmd_init_vfi(struct sli4 *sli4, void *buf, u16 vfi, u16 fcfi, u16 vpi) 3116 { 3117 struct sli4_cmd_init_vfi *init_vfi = buf; 3118 u16 flags = 0; 3119 3120 memset(buf, 0, SLI4_BMBX_SIZE); 3121 3122 init_vfi->hdr.command = SLI4_MBX_CMD_INIT_VFI; 3123 init_vfi->vfi = cpu_to_le16(vfi); 3124 init_vfi->fcfi = cpu_to_le16(fcfi); 3125 3126 /* 3127 * If the VPI is valid, initialize it at the same time as 3128 * the VFI 3129 */ 3130 if (vpi != U16_MAX) { 3131 flags |= SLI4_INIT_VFI_FLAG_VP; 3132 init_vfi->flags0_word = cpu_to_le16(flags); 3133 init_vfi->vpi = cpu_to_le16(vpi); 3134 } 3135 3136 return 0; 3137 } 3138 3139 int 3140 sli_cmd_init_vpi(struct sli4 *sli4, void *buf, u16 vpi, u16 vfi) 3141 { 3142 struct sli4_cmd_init_vpi *init_vpi = buf; 3143 3144 memset(buf, 0, SLI4_BMBX_SIZE); 3145 3146 init_vpi->hdr.command = SLI4_MBX_CMD_INIT_VPI; 3147 init_vpi->vpi = cpu_to_le16(vpi); 3148 init_vpi->vfi = cpu_to_le16(vfi); 3149 3150 return 0; 3151 } 3152 3153 int 3154 sli_cmd_post_xri(struct sli4 *sli4, void *buf, u16 xri_base, u16 xri_count) 3155 { 3156 struct sli4_cmd_post_xri *post_xri = buf; 3157 u16 xri_count_flags = 0; 3158 3159 memset(buf, 0, SLI4_BMBX_SIZE); 3160 3161 post_xri->hdr.command = SLI4_MBX_CMD_POST_XRI; 3162 post_xri->xri_base = cpu_to_le16(xri_base); 3163 xri_count_flags = xri_count & SLI4_POST_XRI_COUNT; 3164 xri_count_flags |= SLI4_POST_XRI_FLAG_ENX; 3165 xri_count_flags |= SLI4_POST_XRI_FLAG_VAL; 3166 post_xri->xri_count_flags = cpu_to_le16(xri_count_flags); 3167 3168 return 0; 3169 } 3170 3171 int 3172 sli_cmd_release_xri(struct sli4 *sli4, void *buf, u8 num_xri) 3173 { 3174 struct sli4_cmd_release_xri *release_xri = buf; 3175 3176 memset(buf, 0, SLI4_BMBX_SIZE); 3177 3178 release_xri->hdr.command = SLI4_MBX_CMD_RELEASE_XRI; 3179 release_xri->xri_count_word = cpu_to_le16(num_xri & 3180 SLI4_RELEASE_XRI_COUNT); 3181 3182 return 0; 3183 } 3184 3185 static int 3186 sli_cmd_read_config(struct sli4 *sli4, void *buf) 3187 { 3188 struct sli4_cmd_read_config *read_config = buf; 3189 3190 memset(buf, 0, SLI4_BMBX_SIZE); 3191 3192 read_config->hdr.command = SLI4_MBX_CMD_READ_CONFIG; 3193 3194 return 0; 3195 } 3196 3197 int 3198 sli_cmd_read_nvparms(struct sli4 *sli4, void *buf) 3199 { 3200 struct sli4_cmd_read_nvparms *read_nvparms = buf; 3201 3202 memset(buf, 0, SLI4_BMBX_SIZE); 3203 3204 read_nvparms->hdr.command = SLI4_MBX_CMD_READ_NVPARMS; 3205 3206 return 0; 3207 } 3208 3209 int 3210 sli_cmd_write_nvparms(struct sli4 *sli4, void *buf, u8 *wwpn, u8 *wwnn, 3211 u8 hard_alpa, u32 preferred_d_id) 3212 { 3213 struct sli4_cmd_write_nvparms *write_nvparms = buf; 3214 3215 memset(buf, 0, SLI4_BMBX_SIZE); 3216 3217 write_nvparms->hdr.command = SLI4_MBX_CMD_WRITE_NVPARMS; 3218 memcpy(write_nvparms->wwpn, wwpn, 8); 3219 memcpy(write_nvparms->wwnn, wwnn, 8); 3220 3221 write_nvparms->hard_alpa_d_id = 3222 cpu_to_le32((preferred_d_id << 8) | hard_alpa); 3223 return 0; 3224 } 3225 3226 static int 3227 sli_cmd_read_rev(struct sli4 *sli4, void *buf, struct efc_dma *vpd) 3228 { 3229 struct sli4_cmd_read_rev *read_rev = buf; 3230 3231 memset(buf, 0, SLI4_BMBX_SIZE); 3232 3233 read_rev->hdr.command = SLI4_MBX_CMD_READ_REV; 3234 3235 if (vpd && vpd->size) { 3236 read_rev->flags0_word |= cpu_to_le16(SLI4_READ_REV_FLAG_VPD); 3237 3238 read_rev->available_length_dword = 3239 cpu_to_le32(vpd->size & 3240 SLI4_READ_REV_AVAILABLE_LENGTH); 3241 3242 read_rev->hostbuf.low = 3243 cpu_to_le32(lower_32_bits(vpd->phys)); 3244 read_rev->hostbuf.high = 3245 cpu_to_le32(upper_32_bits(vpd->phys)); 3246 } 3247 3248 return 0; 3249 } 3250 3251 int 3252 sli_cmd_read_sparm64(struct sli4 *sli4, void *buf, struct efc_dma *dma, u16 vpi) 3253 { 3254 struct sli4_cmd_read_sparm64 *read_sparm64 = buf; 3255 3256 if (vpi == U16_MAX) { 3257 efc_log_err(sli4, "special VPI not supported!!!\n"); 3258 return -EIO; 3259 } 3260 3261 if (!dma || !dma->phys) { 3262 efc_log_err(sli4, "bad DMA buffer\n"); 3263 return -EIO; 3264 } 3265 3266 memset(buf, 0, SLI4_BMBX_SIZE); 3267 3268 read_sparm64->hdr.command = SLI4_MBX_CMD_READ_SPARM64; 3269 3270 read_sparm64->bde_64.bde_type_buflen = 3271 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 3272 (dma->size & SLI4_BDE_LEN_MASK)); 3273 read_sparm64->bde_64.u.data.low = 3274 cpu_to_le32(lower_32_bits(dma->phys)); 3275 read_sparm64->bde_64.u.data.high = 3276 cpu_to_le32(upper_32_bits(dma->phys)); 3277 3278 read_sparm64->vpi = cpu_to_le16(vpi); 3279 3280 return 0; 3281 } 3282 3283 int 3284 sli_cmd_read_topology(struct sli4 *sli4, void *buf, struct efc_dma *dma) 3285 { 3286 struct sli4_cmd_read_topology *read_topo = buf; 3287 3288 if (!dma || !dma->size) 3289 return -EIO; 3290 3291 if (dma->size < SLI4_MIN_LOOP_MAP_BYTES) { 3292 efc_log_err(sli4, "loop map buffer too small %zx\n", dma->size); 3293 return -EIO; 3294 } 3295 3296 memset(buf, 0, SLI4_BMBX_SIZE); 3297 3298 read_topo->hdr.command = SLI4_MBX_CMD_READ_TOPOLOGY; 3299 3300 memset(dma->virt, 0, dma->size); 3301 3302 read_topo->bde_loop_map.bde_type_buflen = 3303 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 3304 (dma->size & SLI4_BDE_LEN_MASK)); 3305 read_topo->bde_loop_map.u.data.low = 3306 cpu_to_le32(lower_32_bits(dma->phys)); 3307 read_topo->bde_loop_map.u.data.high = 3308 cpu_to_le32(upper_32_bits(dma->phys)); 3309 3310 return 0; 3311 } 3312 3313 int 3314 sli_cmd_reg_fcfi(struct sli4 *sli4, void *buf, u16 index, 3315 struct sli4_cmd_rq_cfg *rq_cfg) 3316 { 3317 struct sli4_cmd_reg_fcfi *reg_fcfi = buf; 3318 u32 i; 3319 3320 memset(buf, 0, SLI4_BMBX_SIZE); 3321 3322 reg_fcfi->hdr.command = SLI4_MBX_CMD_REG_FCFI; 3323 3324 reg_fcfi->fcf_index = cpu_to_le16(index); 3325 3326 for (i = 0; i < SLI4_CMD_REG_FCFI_NUM_RQ_CFG; i++) { 3327 switch (i) { 3328 case 0: 3329 reg_fcfi->rqid0 = rq_cfg[0].rq_id; 3330 break; 3331 case 1: 3332 reg_fcfi->rqid1 = rq_cfg[1].rq_id; 3333 break; 3334 case 2: 3335 reg_fcfi->rqid2 = rq_cfg[2].rq_id; 3336 break; 3337 case 3: 3338 reg_fcfi->rqid3 = rq_cfg[3].rq_id; 3339 break; 3340 } 3341 reg_fcfi->rq_cfg[i].r_ctl_mask = rq_cfg[i].r_ctl_mask; 3342 reg_fcfi->rq_cfg[i].r_ctl_match = rq_cfg[i].r_ctl_match; 3343 reg_fcfi->rq_cfg[i].type_mask = rq_cfg[i].type_mask; 3344 reg_fcfi->rq_cfg[i].type_match = rq_cfg[i].type_match; 3345 } 3346 3347 return 0; 3348 } 3349 3350 int 3351 sli_cmd_reg_fcfi_mrq(struct sli4 *sli4, void *buf, u8 mode, u16 fcf_index, 3352 u8 rq_selection_policy, u8 mrq_bit_mask, u16 num_mrqs, 3353 struct sli4_cmd_rq_cfg *rq_cfg) 3354 { 3355 struct sli4_cmd_reg_fcfi_mrq *reg_fcfi_mrq = buf; 3356 u32 i; 3357 u32 mrq_flags = 0; 3358 3359 memset(buf, 0, SLI4_BMBX_SIZE); 3360 3361 reg_fcfi_mrq->hdr.command = SLI4_MBX_CMD_REG_FCFI_MRQ; 3362 if (mode == SLI4_CMD_REG_FCFI_SET_FCFI_MODE) { 3363 reg_fcfi_mrq->fcf_index = cpu_to_le16(fcf_index); 3364 goto done; 3365 } 3366 3367 reg_fcfi_mrq->dw8_vlan = cpu_to_le32(SLI4_REGFCFI_MRQ_MODE); 3368 3369 for (i = 0; i < SLI4_CMD_REG_FCFI_NUM_RQ_CFG; i++) { 3370 reg_fcfi_mrq->rq_cfg[i].r_ctl_mask = rq_cfg[i].r_ctl_mask; 3371 reg_fcfi_mrq->rq_cfg[i].r_ctl_match = rq_cfg[i].r_ctl_match; 3372 reg_fcfi_mrq->rq_cfg[i].type_mask = rq_cfg[i].type_mask; 3373 reg_fcfi_mrq->rq_cfg[i].type_match = rq_cfg[i].type_match; 3374 3375 switch (i) { 3376 case 3: 3377 reg_fcfi_mrq->rqid3 = rq_cfg[i].rq_id; 3378 break; 3379 case 2: 3380 reg_fcfi_mrq->rqid2 = rq_cfg[i].rq_id; 3381 break; 3382 case 1: 3383 reg_fcfi_mrq->rqid1 = rq_cfg[i].rq_id; 3384 break; 3385 case 0: 3386 reg_fcfi_mrq->rqid0 = rq_cfg[i].rq_id; 3387 break; 3388 } 3389 } 3390 3391 mrq_flags = num_mrqs & SLI4_REGFCFI_MRQ_MASK_NUM_PAIRS; 3392 mrq_flags |= (mrq_bit_mask << 8); 3393 mrq_flags |= (rq_selection_policy << 12); 3394 reg_fcfi_mrq->dw9_mrqflags = cpu_to_le32(mrq_flags); 3395 done: 3396 return 0; 3397 } 3398 3399 int 3400 sli_cmd_reg_rpi(struct sli4 *sli4, void *buf, u32 rpi, u32 vpi, u32 fc_id, 3401 struct efc_dma *dma, u8 update, u8 enable_t10_pi) 3402 { 3403 struct sli4_cmd_reg_rpi *reg_rpi = buf; 3404 u32 rportid_flags = 0; 3405 3406 memset(buf, 0, SLI4_BMBX_SIZE); 3407 3408 reg_rpi->hdr.command = SLI4_MBX_CMD_REG_RPI; 3409 3410 reg_rpi->rpi = cpu_to_le16(rpi); 3411 3412 rportid_flags = fc_id & SLI4_REGRPI_REMOTE_N_PORTID; 3413 3414 if (update) 3415 rportid_flags |= SLI4_REGRPI_UPD; 3416 else 3417 rportid_flags &= ~SLI4_REGRPI_UPD; 3418 3419 if (enable_t10_pi) 3420 rportid_flags |= SLI4_REGRPI_ETOW; 3421 else 3422 rportid_flags &= ~SLI4_REGRPI_ETOW; 3423 3424 reg_rpi->dw2_rportid_flags = cpu_to_le32(rportid_flags); 3425 3426 reg_rpi->bde_64.bde_type_buflen = 3427 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 3428 (SLI4_REG_RPI_BUF_LEN & SLI4_BDE_LEN_MASK)); 3429 reg_rpi->bde_64.u.data.low = 3430 cpu_to_le32(lower_32_bits(dma->phys)); 3431 reg_rpi->bde_64.u.data.high = 3432 cpu_to_le32(upper_32_bits(dma->phys)); 3433 3434 reg_rpi->vpi = cpu_to_le16(vpi); 3435 3436 return 0; 3437 } 3438 3439 int 3440 sli_cmd_reg_vfi(struct sli4 *sli4, void *buf, size_t size, 3441 u16 vfi, u16 fcfi, struct efc_dma dma, 3442 u16 vpi, __be64 sli_wwpn, u32 fc_id) 3443 { 3444 struct sli4_cmd_reg_vfi *reg_vfi = buf; 3445 3446 memset(buf, 0, SLI4_BMBX_SIZE); 3447 3448 reg_vfi->hdr.command = SLI4_MBX_CMD_REG_VFI; 3449 3450 reg_vfi->vfi = cpu_to_le16(vfi); 3451 3452 reg_vfi->fcfi = cpu_to_le16(fcfi); 3453 3454 reg_vfi->sparm.bde_type_buflen = 3455 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 3456 (SLI4_REG_RPI_BUF_LEN & SLI4_BDE_LEN_MASK)); 3457 reg_vfi->sparm.u.data.low = 3458 cpu_to_le32(lower_32_bits(dma.phys)); 3459 reg_vfi->sparm.u.data.high = 3460 cpu_to_le32(upper_32_bits(dma.phys)); 3461 3462 reg_vfi->e_d_tov = cpu_to_le32(sli4->e_d_tov); 3463 reg_vfi->r_a_tov = cpu_to_le32(sli4->r_a_tov); 3464 3465 reg_vfi->dw0w1_flags |= cpu_to_le16(SLI4_REGVFI_VP); 3466 reg_vfi->vpi = cpu_to_le16(vpi); 3467 memcpy(reg_vfi->wwpn, &sli_wwpn, sizeof(reg_vfi->wwpn)); 3468 reg_vfi->dw10_lportid_flags = cpu_to_le32(fc_id); 3469 3470 return 0; 3471 } 3472 3473 int 3474 sli_cmd_reg_vpi(struct sli4 *sli4, void *buf, u32 fc_id, __be64 sli_wwpn, 3475 u16 vpi, u16 vfi, bool update) 3476 { 3477 struct sli4_cmd_reg_vpi *reg_vpi = buf; 3478 u32 flags = 0; 3479 3480 memset(buf, 0, SLI4_BMBX_SIZE); 3481 3482 reg_vpi->hdr.command = SLI4_MBX_CMD_REG_VPI; 3483 3484 flags = (fc_id & SLI4_REGVPI_LOCAL_N_PORTID); 3485 if (update) 3486 flags |= SLI4_REGVPI_UPD; 3487 else 3488 flags &= ~SLI4_REGVPI_UPD; 3489 3490 reg_vpi->dw2_lportid_flags = cpu_to_le32(flags); 3491 memcpy(reg_vpi->wwpn, &sli_wwpn, sizeof(reg_vpi->wwpn)); 3492 reg_vpi->vpi = cpu_to_le16(vpi); 3493 reg_vpi->vfi = cpu_to_le16(vfi); 3494 3495 return 0; 3496 } 3497 3498 static int 3499 sli_cmd_request_features(struct sli4 *sli4, void *buf, u32 features_mask, 3500 bool query) 3501 { 3502 struct sli4_cmd_request_features *req_features = buf; 3503 3504 memset(buf, 0, SLI4_BMBX_SIZE); 3505 3506 req_features->hdr.command = SLI4_MBX_CMD_RQST_FEATURES; 3507 3508 if (query) 3509 req_features->dw1_qry = cpu_to_le32(SLI4_REQFEAT_QRY); 3510 3511 req_features->cmd = cpu_to_le32(features_mask); 3512 3513 return 0; 3514 } 3515 3516 int 3517 sli_cmd_unreg_fcfi(struct sli4 *sli4, void *buf, u16 indicator) 3518 { 3519 struct sli4_cmd_unreg_fcfi *unreg_fcfi = buf; 3520 3521 memset(buf, 0, SLI4_BMBX_SIZE); 3522 3523 unreg_fcfi->hdr.command = SLI4_MBX_CMD_UNREG_FCFI; 3524 unreg_fcfi->fcfi = cpu_to_le16(indicator); 3525 3526 return 0; 3527 } 3528 3529 int 3530 sli_cmd_unreg_rpi(struct sli4 *sli4, void *buf, u16 indicator, 3531 enum sli4_resource which, u32 fc_id) 3532 { 3533 struct sli4_cmd_unreg_rpi *unreg_rpi = buf; 3534 u32 flags = 0; 3535 3536 memset(buf, 0, SLI4_BMBX_SIZE); 3537 3538 unreg_rpi->hdr.command = SLI4_MBX_CMD_UNREG_RPI; 3539 switch (which) { 3540 case SLI4_RSRC_RPI: 3541 flags |= SLI4_UNREG_RPI_II_RPI; 3542 if (fc_id == U32_MAX) 3543 break; 3544 3545 flags |= SLI4_UNREG_RPI_DP; 3546 unreg_rpi->dw2_dest_n_portid = 3547 cpu_to_le32(fc_id & SLI4_UNREG_RPI_DEST_N_PORTID_MASK); 3548 break; 3549 case SLI4_RSRC_VPI: 3550 flags |= SLI4_UNREG_RPI_II_VPI; 3551 break; 3552 case SLI4_RSRC_VFI: 3553 flags |= SLI4_UNREG_RPI_II_VFI; 3554 break; 3555 case SLI4_RSRC_FCFI: 3556 flags |= SLI4_UNREG_RPI_II_FCFI; 3557 break; 3558 default: 3559 efc_log_info(sli4, "unknown type %#x\n", which); 3560 return -EIO; 3561 } 3562 3563 unreg_rpi->dw1w1_flags = cpu_to_le16(flags); 3564 unreg_rpi->index = cpu_to_le16(indicator); 3565 3566 return 0; 3567 } 3568 3569 int 3570 sli_cmd_unreg_vfi(struct sli4 *sli4, void *buf, u16 index, u32 which) 3571 { 3572 struct sli4_cmd_unreg_vfi *unreg_vfi = buf; 3573 3574 memset(buf, 0, SLI4_BMBX_SIZE); 3575 3576 unreg_vfi->hdr.command = SLI4_MBX_CMD_UNREG_VFI; 3577 switch (which) { 3578 case SLI4_UNREG_TYPE_DOMAIN: 3579 unreg_vfi->index = cpu_to_le16(index); 3580 break; 3581 case SLI4_UNREG_TYPE_FCF: 3582 unreg_vfi->index = cpu_to_le16(index); 3583 break; 3584 case SLI4_UNREG_TYPE_ALL: 3585 unreg_vfi->index = cpu_to_le16(U32_MAX); 3586 break; 3587 default: 3588 return -EIO; 3589 } 3590 3591 if (which != SLI4_UNREG_TYPE_DOMAIN) 3592 unreg_vfi->dw2_flags = cpu_to_le16(SLI4_UNREG_VFI_II_FCFI); 3593 3594 return 0; 3595 } 3596 3597 int 3598 sli_cmd_unreg_vpi(struct sli4 *sli4, void *buf, u16 indicator, u32 which) 3599 { 3600 struct sli4_cmd_unreg_vpi *unreg_vpi = buf; 3601 u32 flags = 0; 3602 3603 memset(buf, 0, SLI4_BMBX_SIZE); 3604 3605 unreg_vpi->hdr.command = SLI4_MBX_CMD_UNREG_VPI; 3606 unreg_vpi->index = cpu_to_le16(indicator); 3607 switch (which) { 3608 case SLI4_UNREG_TYPE_PORT: 3609 flags |= SLI4_UNREG_VPI_II_VPI; 3610 break; 3611 case SLI4_UNREG_TYPE_DOMAIN: 3612 flags |= SLI4_UNREG_VPI_II_VFI; 3613 break; 3614 case SLI4_UNREG_TYPE_FCF: 3615 flags |= SLI4_UNREG_VPI_II_FCFI; 3616 break; 3617 case SLI4_UNREG_TYPE_ALL: 3618 /* override indicator */ 3619 unreg_vpi->index = cpu_to_le16(U32_MAX); 3620 flags |= SLI4_UNREG_VPI_II_FCFI; 3621 break; 3622 default: 3623 return -EIO; 3624 } 3625 3626 unreg_vpi->dw2w0_flags = cpu_to_le16(flags); 3627 return 0; 3628 } 3629 3630 static int 3631 sli_cmd_common_modify_eq_delay(struct sli4 *sli4, void *buf, 3632 struct sli4_queue *q, int num_q, u32 shift, 3633 u32 delay_mult) 3634 { 3635 struct sli4_rqst_cmn_modify_eq_delay *req = NULL; 3636 int i; 3637 3638 req = sli_config_cmd_init(sli4, buf, 3639 SLI4_CFG_PYLD_LENGTH(cmn_modify_eq_delay), NULL); 3640 if (!req) 3641 return -EIO; 3642 3643 sli_cmd_fill_hdr(&req->hdr, SLI4_CMN_MODIFY_EQ_DELAY, 3644 SLI4_SUBSYSTEM_COMMON, CMD_V0, 3645 SLI4_RQST_PYLD_LEN(cmn_modify_eq_delay)); 3646 req->num_eq = cpu_to_le32(num_q); 3647 3648 for (i = 0; i < num_q; i++) { 3649 req->eq_delay_record[i].eq_id = cpu_to_le32(q[i].id); 3650 req->eq_delay_record[i].phase = cpu_to_le32(shift); 3651 req->eq_delay_record[i].delay_multiplier = 3652 cpu_to_le32(delay_mult); 3653 } 3654 3655 return 0; 3656 } 3657 3658 void 3659 sli4_cmd_lowlevel_set_watchdog(struct sli4 *sli4, void *buf, 3660 size_t size, u16 timeout) 3661 { 3662 struct sli4_rqst_lowlevel_set_watchdog *req = NULL; 3663 3664 req = sli_config_cmd_init(sli4, buf, 3665 SLI4_CFG_PYLD_LENGTH(lowlevel_set_watchdog), NULL); 3666 if (!req) 3667 return; 3668 3669 sli_cmd_fill_hdr(&req->hdr, SLI4_OPC_LOWLEVEL_SET_WATCHDOG, 3670 SLI4_SUBSYSTEM_LOWLEVEL, CMD_V0, 3671 SLI4_RQST_PYLD_LEN(lowlevel_set_watchdog)); 3672 req->watchdog_timeout = cpu_to_le16(timeout); 3673 } 3674 3675 static int 3676 sli_cmd_common_get_cntl_attributes(struct sli4 *sli4, void *buf, 3677 struct efc_dma *dma) 3678 { 3679 struct sli4_rqst_hdr *hdr = NULL; 3680 3681 hdr = sli_config_cmd_init(sli4, buf, SLI4_RQST_CMDSZ(hdr), dma); 3682 if (!hdr) 3683 return -EIO; 3684 3685 hdr->opcode = SLI4_CMN_GET_CNTL_ATTRIBUTES; 3686 hdr->subsystem = SLI4_SUBSYSTEM_COMMON; 3687 hdr->request_length = cpu_to_le32(dma->size); 3688 3689 return 0; 3690 } 3691 3692 static int 3693 sli_cmd_common_get_cntl_addl_attributes(struct sli4 *sli4, void *buf, 3694 struct efc_dma *dma) 3695 { 3696 struct sli4_rqst_hdr *hdr = NULL; 3697 3698 hdr = sli_config_cmd_init(sli4, buf, SLI4_RQST_CMDSZ(hdr), dma); 3699 if (!hdr) 3700 return -EIO; 3701 3702 hdr->opcode = SLI4_CMN_GET_CNTL_ADDL_ATTRS; 3703 hdr->subsystem = SLI4_SUBSYSTEM_COMMON; 3704 hdr->request_length = cpu_to_le32(dma->size); 3705 3706 return 0; 3707 } 3708 3709 int 3710 sli_cmd_common_nop(struct sli4 *sli4, void *buf, uint64_t context) 3711 { 3712 struct sli4_rqst_cmn_nop *nop = NULL; 3713 3714 nop = sli_config_cmd_init(sli4, buf, SLI4_CFG_PYLD_LENGTH(cmn_nop), 3715 NULL); 3716 if (!nop) 3717 return -EIO; 3718 3719 sli_cmd_fill_hdr(&nop->hdr, SLI4_CMN_NOP, SLI4_SUBSYSTEM_COMMON, 3720 CMD_V0, SLI4_RQST_PYLD_LEN(cmn_nop)); 3721 3722 memcpy(&nop->context, &context, sizeof(context)); 3723 3724 return 0; 3725 } 3726 3727 int 3728 sli_cmd_common_get_resource_extent_info(struct sli4 *sli4, void *buf, u16 rtype) 3729 { 3730 struct sli4_rqst_cmn_get_resource_extent_info *ext = NULL; 3731 3732 ext = sli_config_cmd_init(sli4, buf, 3733 SLI4_RQST_CMDSZ(cmn_get_resource_extent_info), NULL); 3734 if (!ext) 3735 return -EIO; 3736 3737 sli_cmd_fill_hdr(&ext->hdr, SLI4_CMN_GET_RSC_EXTENT_INFO, 3738 SLI4_SUBSYSTEM_COMMON, CMD_V0, 3739 SLI4_RQST_PYLD_LEN(cmn_get_resource_extent_info)); 3740 3741 ext->resource_type = cpu_to_le16(rtype); 3742 3743 return 0; 3744 } 3745 3746 int 3747 sli_cmd_common_get_sli4_parameters(struct sli4 *sli4, void *buf) 3748 { 3749 struct sli4_rqst_hdr *hdr = NULL; 3750 3751 hdr = sli_config_cmd_init(sli4, buf, 3752 SLI4_CFG_PYLD_LENGTH(cmn_get_sli4_params), NULL); 3753 if (!hdr) 3754 return -EIO; 3755 3756 hdr->opcode = SLI4_CMN_GET_SLI4_PARAMS; 3757 hdr->subsystem = SLI4_SUBSYSTEM_COMMON; 3758 hdr->request_length = SLI4_RQST_PYLD_LEN(cmn_get_sli4_params); 3759 3760 return 0; 3761 } 3762 3763 static int 3764 sli_cmd_common_get_port_name(struct sli4 *sli4, void *buf) 3765 { 3766 struct sli4_rqst_cmn_get_port_name *pname; 3767 3768 pname = sli_config_cmd_init(sli4, buf, 3769 SLI4_CFG_PYLD_LENGTH(cmn_get_port_name), NULL); 3770 if (!pname) 3771 return -EIO; 3772 3773 sli_cmd_fill_hdr(&pname->hdr, SLI4_CMN_GET_PORT_NAME, 3774 SLI4_SUBSYSTEM_COMMON, CMD_V1, 3775 SLI4_RQST_PYLD_LEN(cmn_get_port_name)); 3776 3777 /* Set the port type value (ethernet=0, FC=1) for V1 commands */ 3778 pname->port_type = SLI4_PORT_TYPE_FC; 3779 3780 return 0; 3781 } 3782 3783 int 3784 sli_cmd_common_write_object(struct sli4 *sli4, void *buf, u16 noc, 3785 u16 eof, u32 desired_write_length, 3786 u32 offset, char *obj_name, 3787 struct efc_dma *dma) 3788 { 3789 struct sli4_rqst_cmn_write_object *wr_obj = NULL; 3790 struct sli4_bde *bde; 3791 u32 dwflags = 0; 3792 3793 wr_obj = sli_config_cmd_init(sli4, buf, 3794 SLI4_RQST_CMDSZ(cmn_write_object) + sizeof(*bde), NULL); 3795 if (!wr_obj) 3796 return -EIO; 3797 3798 sli_cmd_fill_hdr(&wr_obj->hdr, SLI4_CMN_WRITE_OBJECT, 3799 SLI4_SUBSYSTEM_COMMON, CMD_V0, 3800 SLI4_RQST_PYLD_LEN_VAR(cmn_write_object, sizeof(*bde))); 3801 3802 if (noc) 3803 dwflags |= SLI4_RQ_DES_WRITE_LEN_NOC; 3804 if (eof) 3805 dwflags |= SLI4_RQ_DES_WRITE_LEN_EOF; 3806 dwflags |= (desired_write_length & SLI4_RQ_DES_WRITE_LEN); 3807 3808 wr_obj->desired_write_len_dword = cpu_to_le32(dwflags); 3809 3810 wr_obj->write_offset = cpu_to_le32(offset); 3811 strncpy(wr_obj->object_name, obj_name, sizeof(wr_obj->object_name) - 1); 3812 wr_obj->host_buffer_descriptor_count = cpu_to_le32(1); 3813 3814 bde = (struct sli4_bde *)wr_obj->host_buffer_descriptor; 3815 3816 /* Setup to transfer xfer_size bytes to device */ 3817 bde->bde_type_buflen = 3818 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 3819 (desired_write_length & SLI4_BDE_LEN_MASK)); 3820 bde->u.data.low = cpu_to_le32(lower_32_bits(dma->phys)); 3821 bde->u.data.high = cpu_to_le32(upper_32_bits(dma->phys)); 3822 3823 return 0; 3824 } 3825 3826 int 3827 sli_cmd_common_delete_object(struct sli4 *sli4, void *buf, char *obj_name) 3828 { 3829 struct sli4_rqst_cmn_delete_object *req = NULL; 3830 3831 req = sli_config_cmd_init(sli4, buf, 3832 SLI4_RQST_CMDSZ(cmn_delete_object), NULL); 3833 if (!req) 3834 return -EIO; 3835 3836 sli_cmd_fill_hdr(&req->hdr, SLI4_CMN_DELETE_OBJECT, 3837 SLI4_SUBSYSTEM_COMMON, CMD_V0, 3838 SLI4_RQST_PYLD_LEN(cmn_delete_object)); 3839 3840 strncpy(req->object_name, obj_name, sizeof(req->object_name) - 1); 3841 return 0; 3842 } 3843 3844 int 3845 sli_cmd_common_read_object(struct sli4 *sli4, void *buf, u32 desired_read_len, 3846 u32 offset, char *obj_name, struct efc_dma *dma) 3847 { 3848 struct sli4_rqst_cmn_read_object *rd_obj = NULL; 3849 struct sli4_bde *bde; 3850 3851 rd_obj = sli_config_cmd_init(sli4, buf, 3852 SLI4_RQST_CMDSZ(cmn_read_object) + sizeof(*bde), NULL); 3853 if (!rd_obj) 3854 return -EIO; 3855 3856 sli_cmd_fill_hdr(&rd_obj->hdr, SLI4_CMN_READ_OBJECT, 3857 SLI4_SUBSYSTEM_COMMON, CMD_V0, 3858 SLI4_RQST_PYLD_LEN_VAR(cmn_read_object, sizeof(*bde))); 3859 rd_obj->desired_read_length_dword = 3860 cpu_to_le32(desired_read_len & SLI4_REQ_DESIRE_READLEN); 3861 3862 rd_obj->read_offset = cpu_to_le32(offset); 3863 strncpy(rd_obj->object_name, obj_name, sizeof(rd_obj->object_name) - 1); 3864 rd_obj->host_buffer_descriptor_count = cpu_to_le32(1); 3865 3866 bde = (struct sli4_bde *)rd_obj->host_buffer_descriptor; 3867 3868 /* Setup to transfer xfer_size bytes to device */ 3869 bde->bde_type_buflen = 3870 cpu_to_le32((SLI4_BDE_TYPE_VAL(64)) | 3871 (desired_read_len & SLI4_BDE_LEN_MASK)); 3872 if (dma) { 3873 bde->u.data.low = cpu_to_le32(lower_32_bits(dma->phys)); 3874 bde->u.data.high = cpu_to_le32(upper_32_bits(dma->phys)); 3875 } else { 3876 bde->u.data.low = 0; 3877 bde->u.data.high = 0; 3878 } 3879 3880 return 0; 3881 } 3882 3883 int 3884 sli_cmd_dmtf_exec_clp_cmd(struct sli4 *sli4, void *buf, struct efc_dma *cmd, 3885 struct efc_dma *resp) 3886 { 3887 struct sli4_rqst_dmtf_exec_clp_cmd *clp_cmd = NULL; 3888 3889 clp_cmd = sli_config_cmd_init(sli4, buf, 3890 SLI4_RQST_CMDSZ(dmtf_exec_clp_cmd), NULL); 3891 if (!clp_cmd) 3892 return -EIO; 3893 3894 sli_cmd_fill_hdr(&clp_cmd->hdr, DMTF_EXEC_CLP_CMD, SLI4_SUBSYSTEM_DMTF, 3895 CMD_V0, SLI4_RQST_PYLD_LEN(dmtf_exec_clp_cmd)); 3896 3897 clp_cmd->cmd_buf_length = cpu_to_le32(cmd->size); 3898 clp_cmd->cmd_buf_addr_low = cpu_to_le32(lower_32_bits(cmd->phys)); 3899 clp_cmd->cmd_buf_addr_high = cpu_to_le32(upper_32_bits(cmd->phys)); 3900 clp_cmd->resp_buf_length = cpu_to_le32(resp->size); 3901 clp_cmd->resp_buf_addr_low = cpu_to_le32(lower_32_bits(resp->phys)); 3902 clp_cmd->resp_buf_addr_high = cpu_to_le32(upper_32_bits(resp->phys)); 3903 return 0; 3904 } 3905 3906 int 3907 sli_cmd_common_set_dump_location(struct sli4 *sli4, void *buf, bool query, 3908 bool is_buffer_list, 3909 struct efc_dma *buffer, u8 fdb) 3910 { 3911 struct sli4_rqst_cmn_set_dump_location *set_dump_loc = NULL; 3912 u32 buffer_length_flag = 0; 3913 3914 set_dump_loc = sli_config_cmd_init(sli4, buf, 3915 SLI4_RQST_CMDSZ(cmn_set_dump_location), NULL); 3916 if (!set_dump_loc) 3917 return -EIO; 3918 3919 sli_cmd_fill_hdr(&set_dump_loc->hdr, SLI4_CMN_SET_DUMP_LOCATION, 3920 SLI4_SUBSYSTEM_COMMON, CMD_V0, 3921 SLI4_RQST_PYLD_LEN(cmn_set_dump_location)); 3922 3923 if (is_buffer_list) 3924 buffer_length_flag |= SLI4_CMN_SET_DUMP_BLP; 3925 3926 if (query) 3927 buffer_length_flag |= SLI4_CMN_SET_DUMP_QRY; 3928 3929 if (fdb) 3930 buffer_length_flag |= SLI4_CMN_SET_DUMP_FDB; 3931 3932 if (buffer) { 3933 set_dump_loc->buf_addr_low = 3934 cpu_to_le32(lower_32_bits(buffer->phys)); 3935 set_dump_loc->buf_addr_high = 3936 cpu_to_le32(upper_32_bits(buffer->phys)); 3937 3938 buffer_length_flag |= 3939 buffer->len & SLI4_CMN_SET_DUMP_BUFFER_LEN; 3940 } else { 3941 set_dump_loc->buf_addr_low = 0; 3942 set_dump_loc->buf_addr_high = 0; 3943 set_dump_loc->buffer_length_dword = 0; 3944 } 3945 set_dump_loc->buffer_length_dword = cpu_to_le32(buffer_length_flag); 3946 return 0; 3947 } 3948 3949 int 3950 sli_cmd_common_set_features(struct sli4 *sli4, void *buf, u32 feature, 3951 u32 param_len, void *parameter) 3952 { 3953 struct sli4_rqst_cmn_set_features *cmd = NULL; 3954 3955 cmd = sli_config_cmd_init(sli4, buf, 3956 SLI4_RQST_CMDSZ(cmn_set_features), NULL); 3957 if (!cmd) 3958 return -EIO; 3959 3960 sli_cmd_fill_hdr(&cmd->hdr, SLI4_CMN_SET_FEATURES, 3961 SLI4_SUBSYSTEM_COMMON, CMD_V0, 3962 SLI4_RQST_PYLD_LEN(cmn_set_features)); 3963 3964 cmd->feature = cpu_to_le32(feature); 3965 cmd->param_len = cpu_to_le32(param_len); 3966 memcpy(cmd->params, parameter, param_len); 3967 3968 return 0; 3969 } 3970 3971 int 3972 sli_cqe_mq(struct sli4 *sli4, void *buf) 3973 { 3974 struct sli4_mcqe *mcqe = buf; 3975 u32 dwflags = le32_to_cpu(mcqe->dw3_flags); 3976 /* 3977 * Firmware can split mbx completions into two MCQEs: first with only 3978 * the "consumed" bit set and a second with the "complete" bit set. 3979 * Thus, ignore MCQE unless "complete" is set. 3980 */ 3981 if (!(dwflags & SLI4_MCQE_COMPLETED)) 3982 return SLI4_MCQE_STATUS_NOT_COMPLETED; 3983 3984 if (le16_to_cpu(mcqe->completion_status)) { 3985 efc_log_info(sli4, "status(st=%#x ext=%#x con=%d cmp=%d ae=%d val=%d)\n", 3986 le16_to_cpu(mcqe->completion_status), 3987 le16_to_cpu(mcqe->extended_status), 3988 (dwflags & SLI4_MCQE_CONSUMED), 3989 (dwflags & SLI4_MCQE_COMPLETED), 3990 (dwflags & SLI4_MCQE_AE), 3991 (dwflags & SLI4_MCQE_VALID)); 3992 } 3993 3994 return le16_to_cpu(mcqe->completion_status); 3995 } 3996 3997 int 3998 sli_cqe_async(struct sli4 *sli4, void *buf) 3999 { 4000 struct sli4_acqe *acqe = buf; 4001 int rc = -EIO; 4002 4003 if (!buf) { 4004 efc_log_err(sli4, "bad parameter sli4=%p buf=%p\n", sli4, buf); 4005 return -EIO; 4006 } 4007 4008 switch (acqe->event_code) { 4009 case SLI4_ACQE_EVENT_CODE_LINK_STATE: 4010 efc_log_info(sli4, "Unsupported by FC link, evt code:%#x\n", 4011 acqe->event_code); 4012 break; 4013 case SLI4_ACQE_EVENT_CODE_GRP_5: 4014 efc_log_info(sli4, "ACQE GRP5\n"); 4015 break; 4016 case SLI4_ACQE_EVENT_CODE_SLI_PORT_EVENT: 4017 efc_log_info(sli4, "ACQE SLI Port, type=0x%x, data1,2=0x%08x,0x%08x\n", 4018 acqe->event_type, 4019 le32_to_cpu(acqe->event_data[0]), 4020 le32_to_cpu(acqe->event_data[1])); 4021 break; 4022 case SLI4_ACQE_EVENT_CODE_FC_LINK_EVENT: 4023 rc = sli_fc_process_link_attention(sli4, buf); 4024 break; 4025 default: 4026 efc_log_info(sli4, "ACQE unknown=%#x\n", acqe->event_code); 4027 } 4028 4029 return rc; 4030 } 4031 4032 bool 4033 sli_fw_ready(struct sli4 *sli4) 4034 { 4035 u32 val; 4036 4037 /* Determine if the chip FW is in a ready state */ 4038 val = sli_reg_read_status(sli4); 4039 return (val & SLI4_PORT_STATUS_RDY) ? 1 : 0; 4040 } 4041 4042 static bool 4043 sli_wait_for_fw_ready(struct sli4 *sli4, u32 timeout_ms) 4044 { 4045 unsigned long end; 4046 4047 end = jiffies + msecs_to_jiffies(timeout_ms); 4048 4049 do { 4050 if (sli_fw_ready(sli4)) 4051 return true; 4052 4053 usleep_range(1000, 2000); 4054 } while (time_before(jiffies, end)); 4055 4056 return false; 4057 } 4058 4059 static bool 4060 sli_sliport_reset(struct sli4 *sli4) 4061 { 4062 bool rc; 4063 u32 val; 4064 4065 val = SLI4_PORT_CTRL_IP; 4066 /* Initialize port, endian */ 4067 writel(val, (sli4->reg[0] + SLI4_PORT_CTRL_REG)); 4068 4069 rc = sli_wait_for_fw_ready(sli4, SLI4_FW_READY_TIMEOUT_MSEC); 4070 if (!rc) 4071 efc_log_crit(sli4, "port failed to become ready after initialization\n"); 4072 4073 return rc; 4074 } 4075 4076 static bool 4077 sli_fw_init(struct sli4 *sli4) 4078 { 4079 /* 4080 * Is firmware ready for operation? 4081 */ 4082 if (!sli_wait_for_fw_ready(sli4, SLI4_FW_READY_TIMEOUT_MSEC)) { 4083 efc_log_crit(sli4, "FW status is NOT ready\n"); 4084 return false; 4085 } 4086 4087 /* 4088 * Reset port to a known state 4089 */ 4090 return sli_sliport_reset(sli4); 4091 } 4092 4093 static int 4094 sli_request_features(struct sli4 *sli4, u32 *features, bool query) 4095 { 4096 struct sli4_cmd_request_features *req_features = sli4->bmbx.virt; 4097 4098 if (sli_cmd_request_features(sli4, sli4->bmbx.virt, *features, query)) { 4099 efc_log_err(sli4, "bad REQUEST_FEATURES write\n"); 4100 return -EIO; 4101 } 4102 4103 if (sli_bmbx_command(sli4)) { 4104 efc_log_crit(sli4, "bootstrap mailbox write fail\n"); 4105 return -EIO; 4106 } 4107 4108 if (le16_to_cpu(req_features->hdr.status)) { 4109 efc_log_err(sli4, "REQUEST_FEATURES bad status %#x\n", 4110 le16_to_cpu(req_features->hdr.status)); 4111 return -EIO; 4112 } 4113 4114 *features = le32_to_cpu(req_features->resp); 4115 return 0; 4116 } 4117 4118 void 4119 sli_calc_max_qentries(struct sli4 *sli4) 4120 { 4121 enum sli4_qtype q; 4122 u32 qentries; 4123 4124 for (q = SLI4_QTYPE_EQ; q < SLI4_QTYPE_MAX; q++) { 4125 sli4->qinfo.max_qentries[q] = 4126 sli_convert_mask_to_count(sli4->qinfo.count_method[q], 4127 sli4->qinfo.count_mask[q]); 4128 } 4129 4130 /* single, continguous DMA allocations will be called for each queue 4131 * of size (max_qentries * queue entry size); since these can be large, 4132 * check against the OS max DMA allocation size 4133 */ 4134 for (q = SLI4_QTYPE_EQ; q < SLI4_QTYPE_MAX; q++) { 4135 qentries = sli4->qinfo.max_qentries[q]; 4136 4137 efc_log_info(sli4, "[%s]: max_qentries from %d to %d\n", 4138 SLI4_QNAME[q], 4139 sli4->qinfo.max_qentries[q], qentries); 4140 sli4->qinfo.max_qentries[q] = qentries; 4141 } 4142 } 4143 4144 static int 4145 sli_get_read_config(struct sli4 *sli4) 4146 { 4147 struct sli4_rsp_read_config *conf = sli4->bmbx.virt; 4148 u32 i, total, total_size; 4149 u32 *base; 4150 4151 if (sli_cmd_read_config(sli4, sli4->bmbx.virt)) { 4152 efc_log_err(sli4, "bad READ_CONFIG write\n"); 4153 return -EIO; 4154 } 4155 4156 if (sli_bmbx_command(sli4)) { 4157 efc_log_crit(sli4, "bootstrap mailbox fail (READ_CONFIG)\n"); 4158 return -EIO; 4159 } 4160 4161 if (le16_to_cpu(conf->hdr.status)) { 4162 efc_log_err(sli4, "READ_CONFIG bad status %#x\n", 4163 le16_to_cpu(conf->hdr.status)); 4164 return -EIO; 4165 } 4166 4167 sli4->params.has_extents = 4168 le32_to_cpu(conf->ext_dword) & SLI4_READ_CFG_RESP_RESOURCE_EXT; 4169 if (sli4->params.has_extents) { 4170 efc_log_err(sli4, "extents not supported\n"); 4171 return -EIO; 4172 } 4173 4174 base = sli4->ext[0].base; 4175 if (!base) { 4176 int size = SLI4_RSRC_MAX * sizeof(u32); 4177 4178 base = kzalloc(size, GFP_KERNEL); 4179 if (!base) 4180 return -EIO; 4181 } 4182 4183 for (i = 0; i < SLI4_RSRC_MAX; i++) { 4184 sli4->ext[i].number = 1; 4185 sli4->ext[i].n_alloc = 0; 4186 sli4->ext[i].base = &base[i]; 4187 } 4188 4189 sli4->ext[SLI4_RSRC_VFI].base[0] = le16_to_cpu(conf->vfi_base); 4190 sli4->ext[SLI4_RSRC_VFI].size = le16_to_cpu(conf->vfi_count); 4191 4192 sli4->ext[SLI4_RSRC_VPI].base[0] = le16_to_cpu(conf->vpi_base); 4193 sli4->ext[SLI4_RSRC_VPI].size = le16_to_cpu(conf->vpi_count); 4194 4195 sli4->ext[SLI4_RSRC_RPI].base[0] = le16_to_cpu(conf->rpi_base); 4196 sli4->ext[SLI4_RSRC_RPI].size = le16_to_cpu(conf->rpi_count); 4197 4198 sli4->ext[SLI4_RSRC_XRI].base[0] = le16_to_cpu(conf->xri_base); 4199 sli4->ext[SLI4_RSRC_XRI].size = le16_to_cpu(conf->xri_count); 4200 4201 sli4->ext[SLI4_RSRC_FCFI].base[0] = 0; 4202 sli4->ext[SLI4_RSRC_FCFI].size = le16_to_cpu(conf->fcfi_count); 4203 4204 for (i = 0; i < SLI4_RSRC_MAX; i++) { 4205 total = sli4->ext[i].number * sli4->ext[i].size; 4206 total_size = BITS_TO_LONGS(total) * sizeof(long); 4207 sli4->ext[i].use_map = kzalloc(total_size, GFP_KERNEL); 4208 if (!sli4->ext[i].use_map) { 4209 efc_log_err(sli4, "bitmap memory allocation failed %d\n", 4210 i); 4211 return -EIO; 4212 } 4213 sli4->ext[i].map_size = total; 4214 } 4215 4216 sli4->topology = (le32_to_cpu(conf->topology_dword) & 4217 SLI4_READ_CFG_RESP_TOPOLOGY) >> 24; 4218 switch (sli4->topology) { 4219 case SLI4_READ_CFG_TOPO_FC: 4220 efc_log_info(sli4, "FC (unknown)\n"); 4221 break; 4222 case SLI4_READ_CFG_TOPO_NON_FC_AL: 4223 efc_log_info(sli4, "FC (direct attach)\n"); 4224 break; 4225 case SLI4_READ_CFG_TOPO_FC_AL: 4226 efc_log_info(sli4, "FC (arbitrated loop)\n"); 4227 break; 4228 default: 4229 efc_log_info(sli4, "bad topology %#x\n", sli4->topology); 4230 } 4231 4232 sli4->e_d_tov = le16_to_cpu(conf->e_d_tov); 4233 sli4->r_a_tov = le16_to_cpu(conf->r_a_tov); 4234 4235 sli4->link_module_type = le16_to_cpu(conf->lmt); 4236 4237 sli4->qinfo.max_qcount[SLI4_QTYPE_EQ] = le16_to_cpu(conf->eq_count); 4238 sli4->qinfo.max_qcount[SLI4_QTYPE_CQ] = le16_to_cpu(conf->cq_count); 4239 sli4->qinfo.max_qcount[SLI4_QTYPE_WQ] = le16_to_cpu(conf->wq_count); 4240 sli4->qinfo.max_qcount[SLI4_QTYPE_RQ] = le16_to_cpu(conf->rq_count); 4241 4242 /* 4243 * READ_CONFIG doesn't give the max number of MQ. Applications 4244 * will typically want 1, but we may need another at some future 4245 * date. Dummy up a "max" MQ count here. 4246 */ 4247 sli4->qinfo.max_qcount[SLI4_QTYPE_MQ] = SLI4_USER_MQ_COUNT; 4248 return 0; 4249 } 4250 4251 static int 4252 sli_get_sli4_parameters(struct sli4 *sli4) 4253 { 4254 struct sli4_rsp_cmn_get_sli4_params *parms; 4255 u32 dw_loopback; 4256 u32 dw_eq_pg_cnt; 4257 u32 dw_cq_pg_cnt; 4258 u32 dw_mq_pg_cnt; 4259 u32 dw_wq_pg_cnt; 4260 u32 dw_rq_pg_cnt; 4261 u32 dw_sgl_pg_cnt; 4262 4263 if (sli_cmd_common_get_sli4_parameters(sli4, sli4->bmbx.virt)) 4264 return -EIO; 4265 4266 parms = (struct sli4_rsp_cmn_get_sli4_params *) 4267 (((u8 *)sli4->bmbx.virt) + 4268 offsetof(struct sli4_cmd_sli_config, payload.embed)); 4269 4270 if (sli_bmbx_command(sli4)) { 4271 efc_log_crit(sli4, "bootstrap mailbox write fail\n"); 4272 return -EIO; 4273 } 4274 4275 if (parms->hdr.status) { 4276 efc_log_err(sli4, "COMMON_GET_SLI4_PARAMETERS bad status %#x", 4277 parms->hdr.status); 4278 efc_log_err(sli4, "additional status %#x\n", 4279 parms->hdr.additional_status); 4280 return -EIO; 4281 } 4282 4283 dw_loopback = le32_to_cpu(parms->dw16_loopback_scope); 4284 dw_eq_pg_cnt = le32_to_cpu(parms->dw6_eq_page_cnt); 4285 dw_cq_pg_cnt = le32_to_cpu(parms->dw8_cq_page_cnt); 4286 dw_mq_pg_cnt = le32_to_cpu(parms->dw10_mq_page_cnt); 4287 dw_wq_pg_cnt = le32_to_cpu(parms->dw12_wq_page_cnt); 4288 dw_rq_pg_cnt = le32_to_cpu(parms->dw14_rq_page_cnt); 4289 4290 sli4->params.auto_reg = (dw_loopback & SLI4_PARAM_AREG); 4291 sli4->params.auto_xfer_rdy = (dw_loopback & SLI4_PARAM_AGXF); 4292 sli4->params.hdr_template_req = (dw_loopback & SLI4_PARAM_HDRR); 4293 sli4->params.t10_dif_inline_capable = (dw_loopback & SLI4_PARAM_TIMM); 4294 sli4->params.t10_dif_separate_capable = (dw_loopback & SLI4_PARAM_TSMM); 4295 4296 sli4->params.mq_create_version = GET_Q_CREATE_VERSION(dw_mq_pg_cnt); 4297 sli4->params.cq_create_version = GET_Q_CREATE_VERSION(dw_cq_pg_cnt); 4298 4299 sli4->rq_min_buf_size = le16_to_cpu(parms->min_rq_buffer_size); 4300 sli4->rq_max_buf_size = le32_to_cpu(parms->max_rq_buffer_size); 4301 4302 sli4->qinfo.qpage_count[SLI4_QTYPE_EQ] = 4303 (dw_eq_pg_cnt & SLI4_PARAM_EQ_PAGE_CNT_MASK); 4304 sli4->qinfo.qpage_count[SLI4_QTYPE_CQ] = 4305 (dw_cq_pg_cnt & SLI4_PARAM_CQ_PAGE_CNT_MASK); 4306 sli4->qinfo.qpage_count[SLI4_QTYPE_MQ] = 4307 (dw_mq_pg_cnt & SLI4_PARAM_MQ_PAGE_CNT_MASK); 4308 sli4->qinfo.qpage_count[SLI4_QTYPE_WQ] = 4309 (dw_wq_pg_cnt & SLI4_PARAM_WQ_PAGE_CNT_MASK); 4310 sli4->qinfo.qpage_count[SLI4_QTYPE_RQ] = 4311 (dw_rq_pg_cnt & SLI4_PARAM_RQ_PAGE_CNT_MASK); 4312 4313 /* save count methods and masks for each queue type */ 4314 4315 sli4->qinfo.count_mask[SLI4_QTYPE_EQ] = 4316 le16_to_cpu(parms->eqe_count_mask); 4317 sli4->qinfo.count_method[SLI4_QTYPE_EQ] = 4318 GET_Q_CNT_METHOD(dw_eq_pg_cnt); 4319 4320 sli4->qinfo.count_mask[SLI4_QTYPE_CQ] = 4321 le16_to_cpu(parms->cqe_count_mask); 4322 sli4->qinfo.count_method[SLI4_QTYPE_CQ] = 4323 GET_Q_CNT_METHOD(dw_cq_pg_cnt); 4324 4325 sli4->qinfo.count_mask[SLI4_QTYPE_MQ] = 4326 le16_to_cpu(parms->mqe_count_mask); 4327 sli4->qinfo.count_method[SLI4_QTYPE_MQ] = 4328 GET_Q_CNT_METHOD(dw_mq_pg_cnt); 4329 4330 sli4->qinfo.count_mask[SLI4_QTYPE_WQ] = 4331 le16_to_cpu(parms->wqe_count_mask); 4332 sli4->qinfo.count_method[SLI4_QTYPE_WQ] = 4333 GET_Q_CNT_METHOD(dw_wq_pg_cnt); 4334 4335 sli4->qinfo.count_mask[SLI4_QTYPE_RQ] = 4336 le16_to_cpu(parms->rqe_count_mask); 4337 sli4->qinfo.count_method[SLI4_QTYPE_RQ] = 4338 GET_Q_CNT_METHOD(dw_rq_pg_cnt); 4339 4340 /* now calculate max queue entries */ 4341 sli_calc_max_qentries(sli4); 4342 4343 dw_sgl_pg_cnt = le32_to_cpu(parms->dw18_sgl_page_cnt); 4344 4345 /* max # of pages */ 4346 sli4->max_sgl_pages = (dw_sgl_pg_cnt & SLI4_PARAM_SGL_PAGE_CNT_MASK); 4347 4348 /* bit map of available sizes */ 4349 sli4->sgl_page_sizes = (dw_sgl_pg_cnt & 4350 SLI4_PARAM_SGL_PAGE_SZS_MASK) >> 8; 4351 /* ignore HLM here. Use value from REQUEST_FEATURES */ 4352 sli4->sge_supported_length = le32_to_cpu(parms->sge_supported_length); 4353 sli4->params.sgl_pre_reg_required = (dw_loopback & SLI4_PARAM_SGLR); 4354 /* default to using pre-registered SGL's */ 4355 sli4->params.sgl_pre_registered = true; 4356 4357 sli4->params.perf_hint = dw_loopback & SLI4_PARAM_PHON; 4358 sli4->params.perf_wq_id_association = (dw_loopback & SLI4_PARAM_PHWQ); 4359 4360 sli4->rq_batch = (le16_to_cpu(parms->dw15w1_rq_db_window) & 4361 SLI4_PARAM_RQ_DB_WINDOW_MASK) >> 12; 4362 4363 /* Use the highest available WQE size. */ 4364 if (((dw_wq_pg_cnt & SLI4_PARAM_WQE_SZS_MASK) >> 8) & 4365 SLI4_128BYTE_WQE_SUPPORT) 4366 sli4->wqe_size = SLI4_WQE_EXT_BYTES; 4367 else 4368 sli4->wqe_size = SLI4_WQE_BYTES; 4369 4370 return 0; 4371 } 4372 4373 static int 4374 sli_get_ctrl_attributes(struct sli4 *sli4) 4375 { 4376 struct sli4_rsp_cmn_get_cntl_attributes *attr; 4377 struct sli4_rsp_cmn_get_cntl_addl_attributes *add_attr; 4378 struct efc_dma data; 4379 u32 psize; 4380 4381 /* 4382 * Issue COMMON_GET_CNTL_ATTRIBUTES to get port_number. Temporarily 4383 * uses VPD DMA buffer as the response won't fit in the embedded 4384 * buffer. 4385 */ 4386 memset(sli4->vpd_data.virt, 0, sli4->vpd_data.size); 4387 if (sli_cmd_common_get_cntl_attributes(sli4, sli4->bmbx.virt, 4388 &sli4->vpd_data)) { 4389 efc_log_err(sli4, "bad COMMON_GET_CNTL_ATTRIBUTES write\n"); 4390 return -EIO; 4391 } 4392 4393 attr = sli4->vpd_data.virt; 4394 4395 if (sli_bmbx_command(sli4)) { 4396 efc_log_crit(sli4, "bootstrap mailbox write fail\n"); 4397 return -EIO; 4398 } 4399 4400 if (attr->hdr.status) { 4401 efc_log_err(sli4, "COMMON_GET_CNTL_ATTRIBUTES bad status %#x", 4402 attr->hdr.status); 4403 efc_log_err(sli4, "additional status %#x\n", 4404 attr->hdr.additional_status); 4405 return -EIO; 4406 } 4407 4408 sli4->port_number = attr->port_num_type_flags & SLI4_CNTL_ATTR_PORTNUM; 4409 4410 memcpy(sli4->bios_version_string, attr->bios_version_str, 4411 sizeof(sli4->bios_version_string)); 4412 4413 /* get additional attributes */ 4414 psize = sizeof(struct sli4_rsp_cmn_get_cntl_addl_attributes); 4415 data.size = psize; 4416 data.virt = dma_alloc_coherent(&sli4->pci->dev, data.size, 4417 &data.phys, GFP_DMA); 4418 if (!data.virt) { 4419 memset(&data, 0, sizeof(struct efc_dma)); 4420 efc_log_err(sli4, "Failed to allocate memory for GET_CNTL_ADDL_ATTR\n"); 4421 return -EIO; 4422 } 4423 4424 if (sli_cmd_common_get_cntl_addl_attributes(sli4, sli4->bmbx.virt, 4425 &data)) { 4426 efc_log_err(sli4, "bad GET_CNTL_ADDL_ATTR write\n"); 4427 dma_free_coherent(&sli4->pci->dev, data.size, 4428 data.virt, data.phys); 4429 return -EIO; 4430 } 4431 4432 if (sli_bmbx_command(sli4)) { 4433 efc_log_crit(sli4, "mailbox fail (GET_CNTL_ADDL_ATTR)\n"); 4434 dma_free_coherent(&sli4->pci->dev, data.size, 4435 data.virt, data.phys); 4436 return -EIO; 4437 } 4438 4439 add_attr = data.virt; 4440 if (add_attr->hdr.status) { 4441 efc_log_err(sli4, "GET_CNTL_ADDL_ATTR bad status %#x\n", 4442 add_attr->hdr.status); 4443 dma_free_coherent(&sli4->pci->dev, data.size, 4444 data.virt, data.phys); 4445 return -EIO; 4446 } 4447 4448 memcpy(sli4->ipl_name, add_attr->ipl_file_name, sizeof(sli4->ipl_name)); 4449 4450 efc_log_info(sli4, "IPL:%s\n", (char *)sli4->ipl_name); 4451 4452 dma_free_coherent(&sli4->pci->dev, data.size, data.virt, 4453 data.phys); 4454 memset(&data, 0, sizeof(struct efc_dma)); 4455 return 0; 4456 } 4457 4458 static int 4459 sli_get_fw_rev(struct sli4 *sli4) 4460 { 4461 struct sli4_cmd_read_rev *read_rev = sli4->bmbx.virt; 4462 4463 if (sli_cmd_read_rev(sli4, sli4->bmbx.virt, &sli4->vpd_data)) 4464 return -EIO; 4465 4466 if (sli_bmbx_command(sli4)) { 4467 efc_log_crit(sli4, "bootstrap mailbox write fail (READ_REV)\n"); 4468 return -EIO; 4469 } 4470 4471 if (le16_to_cpu(read_rev->hdr.status)) { 4472 efc_log_err(sli4, "READ_REV bad status %#x\n", 4473 le16_to_cpu(read_rev->hdr.status)); 4474 return -EIO; 4475 } 4476 4477 sli4->fw_rev[0] = le32_to_cpu(read_rev->first_fw_id); 4478 memcpy(sli4->fw_name[0], read_rev->first_fw_name, 4479 sizeof(sli4->fw_name[0])); 4480 4481 sli4->fw_rev[1] = le32_to_cpu(read_rev->second_fw_id); 4482 memcpy(sli4->fw_name[1], read_rev->second_fw_name, 4483 sizeof(sli4->fw_name[1])); 4484 4485 sli4->hw_rev[0] = le32_to_cpu(read_rev->first_hw_rev); 4486 sli4->hw_rev[1] = le32_to_cpu(read_rev->second_hw_rev); 4487 sli4->hw_rev[2] = le32_to_cpu(read_rev->third_hw_rev); 4488 4489 efc_log_info(sli4, "FW1:%s (%08x) / FW2:%s (%08x)\n", 4490 read_rev->first_fw_name, le32_to_cpu(read_rev->first_fw_id), 4491 read_rev->second_fw_name, le32_to_cpu(read_rev->second_fw_id)); 4492 4493 efc_log_info(sli4, "HW1: %08x / HW2: %08x\n", 4494 le32_to_cpu(read_rev->first_hw_rev), 4495 le32_to_cpu(read_rev->second_hw_rev)); 4496 4497 /* Check that all VPD data was returned */ 4498 if (le32_to_cpu(read_rev->returned_vpd_length) != 4499 le32_to_cpu(read_rev->actual_vpd_length)) { 4500 efc_log_info(sli4, "VPD length: avail=%d return=%d actual=%d\n", 4501 le32_to_cpu(read_rev->available_length_dword) & 4502 SLI4_READ_REV_AVAILABLE_LENGTH, 4503 le32_to_cpu(read_rev->returned_vpd_length), 4504 le32_to_cpu(read_rev->actual_vpd_length)); 4505 } 4506 sli4->vpd_length = le32_to_cpu(read_rev->returned_vpd_length); 4507 return 0; 4508 } 4509 4510 static int 4511 sli_get_config(struct sli4 *sli4) 4512 { 4513 struct sli4_rsp_cmn_get_port_name *port_name; 4514 struct sli4_cmd_read_nvparms *read_nvparms; 4515 4516 /* 4517 * Read the device configuration 4518 */ 4519 if (sli_get_read_config(sli4)) 4520 return -EIO; 4521 4522 if (sli_get_sli4_parameters(sli4)) 4523 return -EIO; 4524 4525 if (sli_get_ctrl_attributes(sli4)) 4526 return -EIO; 4527 4528 if (sli_cmd_common_get_port_name(sli4, sli4->bmbx.virt)) 4529 return -EIO; 4530 4531 port_name = (struct sli4_rsp_cmn_get_port_name *) 4532 (((u8 *)sli4->bmbx.virt) + 4533 offsetof(struct sli4_cmd_sli_config, payload.embed)); 4534 4535 if (sli_bmbx_command(sli4)) { 4536 efc_log_crit(sli4, "bootstrap mailbox fail (GET_PORT_NAME)\n"); 4537 return -EIO; 4538 } 4539 4540 sli4->port_name[0] = port_name->port_name[sli4->port_number]; 4541 sli4->port_name[1] = '\0'; 4542 4543 if (sli_get_fw_rev(sli4)) 4544 return -EIO; 4545 4546 if (sli_cmd_read_nvparms(sli4, sli4->bmbx.virt)) { 4547 efc_log_err(sli4, "bad READ_NVPARMS write\n"); 4548 return -EIO; 4549 } 4550 4551 if (sli_bmbx_command(sli4)) { 4552 efc_log_crit(sli4, "bootstrap mailbox fail (READ_NVPARMS)\n"); 4553 return -EIO; 4554 } 4555 4556 read_nvparms = sli4->bmbx.virt; 4557 if (le16_to_cpu(read_nvparms->hdr.status)) { 4558 efc_log_err(sli4, "READ_NVPARMS bad status %#x\n", 4559 le16_to_cpu(read_nvparms->hdr.status)); 4560 return -EIO; 4561 } 4562 4563 memcpy(sli4->wwpn, read_nvparms->wwpn, sizeof(sli4->wwpn)); 4564 memcpy(sli4->wwnn, read_nvparms->wwnn, sizeof(sli4->wwnn)); 4565 4566 efc_log_info(sli4, "WWPN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 4567 sli4->wwpn[0], sli4->wwpn[1], sli4->wwpn[2], sli4->wwpn[3], 4568 sli4->wwpn[4], sli4->wwpn[5], sli4->wwpn[6], sli4->wwpn[7]); 4569 efc_log_info(sli4, "WWNN %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n", 4570 sli4->wwnn[0], sli4->wwnn[1], sli4->wwnn[2], sli4->wwnn[3], 4571 sli4->wwnn[4], sli4->wwnn[5], sli4->wwnn[6], sli4->wwnn[7]); 4572 4573 return 0; 4574 } 4575 4576 int 4577 sli_setup(struct sli4 *sli4, void *os, struct pci_dev *pdev, 4578 void __iomem *reg[]) 4579 { 4580 u32 intf = U32_MAX; 4581 u32 pci_class_rev = 0; 4582 u32 rev_id = 0; 4583 u32 family = 0; 4584 u32 asic_id = 0; 4585 u32 i; 4586 struct sli4_asic_entry_t *asic; 4587 4588 memset(sli4, 0, sizeof(struct sli4)); 4589 4590 sli4->os = os; 4591 sli4->pci = pdev; 4592 4593 for (i = 0; i < 6; i++) 4594 sli4->reg[i] = reg[i]; 4595 /* 4596 * Read the SLI_INTF register to discover the register layout 4597 * and other capability information 4598 */ 4599 if (pci_read_config_dword(pdev, SLI4_INTF_REG, &intf)) 4600 return -EIO; 4601 4602 if ((intf & SLI4_INTF_VALID_MASK) != (u32)SLI4_INTF_VALID_VALUE) { 4603 efc_log_err(sli4, "SLI_INTF is not valid\n"); 4604 return -EIO; 4605 } 4606 4607 /* driver only support SLI-4 */ 4608 if ((intf & SLI4_INTF_REV_MASK) != SLI4_INTF_REV_S4) { 4609 efc_log_err(sli4, "Unsupported SLI revision (intf=%#x)\n", intf); 4610 return -EIO; 4611 } 4612 4613 sli4->sli_family = intf & SLI4_INTF_FAMILY_MASK; 4614 4615 sli4->if_type = intf & SLI4_INTF_IF_TYPE_MASK; 4616 efc_log_info(sli4, "status=%#x error1=%#x error2=%#x\n", 4617 sli_reg_read_status(sli4), 4618 sli_reg_read_err1(sli4), 4619 sli_reg_read_err2(sli4)); 4620 4621 /* 4622 * set the ASIC type and revision 4623 */ 4624 if (pci_read_config_dword(pdev, PCI_CLASS_REVISION, &pci_class_rev)) 4625 return -EIO; 4626 4627 rev_id = pci_class_rev & 0xff; 4628 family = sli4->sli_family; 4629 if (family == SLI4_FAMILY_CHECK_ASIC_TYPE) { 4630 if (!pci_read_config_dword(pdev, SLI4_ASIC_ID_REG, &asic_id)) 4631 family = asic_id & SLI4_ASIC_GEN_MASK; 4632 } 4633 4634 for (i = 0, asic = sli4_asic_table; i < ARRAY_SIZE(sli4_asic_table); 4635 i++, asic++) { 4636 if (rev_id == asic->rev_id && family == asic->family) { 4637 sli4->asic_type = family; 4638 sli4->asic_rev = rev_id; 4639 break; 4640 } 4641 } 4642 /* Fail if no matching asic type/rev was found */ 4643 if (!sli4->asic_type) { 4644 efc_log_err(sli4, "no matching asic family/rev found: %02x/%02x\n", 4645 family, rev_id); 4646 return -EIO; 4647 } 4648 4649 /* 4650 * The bootstrap mailbox is equivalent to a MQ with a single 256 byte 4651 * entry, a CQ with a single 16 byte entry, and no event queue. 4652 * Alignment must be 16 bytes as the low order address bits in the 4653 * address register are also control / status. 4654 */ 4655 sli4->bmbx.size = SLI4_BMBX_SIZE + sizeof(struct sli4_mcqe); 4656 sli4->bmbx.virt = dma_alloc_coherent(&pdev->dev, sli4->bmbx.size, 4657 &sli4->bmbx.phys, GFP_DMA); 4658 if (!sli4->bmbx.virt) { 4659 memset(&sli4->bmbx, 0, sizeof(struct efc_dma)); 4660 efc_log_err(sli4, "bootstrap mailbox allocation failed\n"); 4661 return -EIO; 4662 } 4663 4664 if (sli4->bmbx.phys & SLI4_BMBX_MASK_LO) { 4665 efc_log_err(sli4, "bad alignment for bootstrap mailbox\n"); 4666 return -EIO; 4667 } 4668 4669 efc_log_info(sli4, "bmbx v=%p p=0x%x %08x s=%zd\n", sli4->bmbx.virt, 4670 upper_32_bits(sli4->bmbx.phys), 4671 lower_32_bits(sli4->bmbx.phys), sli4->bmbx.size); 4672 4673 /* 4096 is arbitrary. What should this value actually be? */ 4674 sli4->vpd_data.size = 4096; 4675 sli4->vpd_data.virt = dma_alloc_coherent(&pdev->dev, 4676 sli4->vpd_data.size, 4677 &sli4->vpd_data.phys, 4678 GFP_DMA); 4679 if (!sli4->vpd_data.virt) { 4680 memset(&sli4->vpd_data, 0, sizeof(struct efc_dma)); 4681 /* Note that failure isn't fatal in this specific case */ 4682 efc_log_info(sli4, "VPD buffer allocation failed\n"); 4683 } 4684 4685 if (!sli_fw_init(sli4)) { 4686 efc_log_err(sli4, "FW initialization failed\n"); 4687 return -EIO; 4688 } 4689 4690 /* 4691 * Set one of fcpi(initiator), fcpt(target), fcpc(combined) to true 4692 * in addition to any other desired features 4693 */ 4694 sli4->features = (SLI4_REQFEAT_IAAB | SLI4_REQFEAT_NPIV | 4695 SLI4_REQFEAT_DIF | SLI4_REQFEAT_VF | 4696 SLI4_REQFEAT_FCPC | SLI4_REQFEAT_IAAR | 4697 SLI4_REQFEAT_HLM | SLI4_REQFEAT_PERFH | 4698 SLI4_REQFEAT_RXSEQ | SLI4_REQFEAT_RXRI | 4699 SLI4_REQFEAT_MRQP); 4700 4701 /* use performance hints if available */ 4702 if (sli4->params.perf_hint) 4703 sli4->features |= SLI4_REQFEAT_PERFH; 4704 4705 if (sli_request_features(sli4, &sli4->features, true)) 4706 return -EIO; 4707 4708 if (sli_get_config(sli4)) 4709 return -EIO; 4710 4711 return 0; 4712 } 4713 4714 int 4715 sli_init(struct sli4 *sli4) 4716 { 4717 if (sli4->params.has_extents) { 4718 efc_log_info(sli4, "extend allocation not supported\n"); 4719 return -EIO; 4720 } 4721 4722 sli4->features &= (~SLI4_REQFEAT_HLM); 4723 sli4->features &= (~SLI4_REQFEAT_RXSEQ); 4724 sli4->features &= (~SLI4_REQFEAT_RXRI); 4725 4726 if (sli_request_features(sli4, &sli4->features, false)) 4727 return -EIO; 4728 4729 return 0; 4730 } 4731 4732 int 4733 sli_reset(struct sli4 *sli4) 4734 { 4735 u32 i; 4736 4737 if (!sli_fw_init(sli4)) { 4738 efc_log_crit(sli4, "FW initialization failed\n"); 4739 return -EIO; 4740 } 4741 4742 kfree(sli4->ext[0].base); 4743 sli4->ext[0].base = NULL; 4744 4745 for (i = 0; i < SLI4_RSRC_MAX; i++) { 4746 kfree(sli4->ext[i].use_map); 4747 sli4->ext[i].use_map = NULL; 4748 sli4->ext[i].base = NULL; 4749 } 4750 4751 return sli_get_config(sli4); 4752 } 4753 4754 int 4755 sli_fw_reset(struct sli4 *sli4) 4756 { 4757 /* 4758 * Firmware must be ready before issuing the reset. 4759 */ 4760 if (!sli_wait_for_fw_ready(sli4, SLI4_FW_READY_TIMEOUT_MSEC)) { 4761 efc_log_crit(sli4, "FW status is NOT ready\n"); 4762 return -EIO; 4763 } 4764 4765 /* Lancer uses PHYDEV_CONTROL */ 4766 writel(SLI4_PHYDEV_CTRL_FRST, (sli4->reg[0] + SLI4_PHYDEV_CTRL_REG)); 4767 4768 /* wait for the FW to become ready after the reset */ 4769 if (!sli_wait_for_fw_ready(sli4, SLI4_FW_READY_TIMEOUT_MSEC)) { 4770 efc_log_crit(sli4, "Failed to be ready after firmware reset\n"); 4771 return -EIO; 4772 } 4773 return 0; 4774 } 4775 4776 void 4777 sli_teardown(struct sli4 *sli4) 4778 { 4779 u32 i; 4780 4781 kfree(sli4->ext[0].base); 4782 sli4->ext[0].base = NULL; 4783 4784 for (i = 0; i < SLI4_RSRC_MAX; i++) { 4785 sli4->ext[i].base = NULL; 4786 4787 kfree(sli4->ext[i].use_map); 4788 sli4->ext[i].use_map = NULL; 4789 } 4790 4791 if (!sli_sliport_reset(sli4)) 4792 efc_log_err(sli4, "FW deinitialization failed\n"); 4793 4794 dma_free_coherent(&sli4->pci->dev, sli4->vpd_data.size, 4795 sli4->vpd_data.virt, sli4->vpd_data.phys); 4796 memset(&sli4->vpd_data, 0, sizeof(struct efc_dma)); 4797 4798 dma_free_coherent(&sli4->pci->dev, sli4->bmbx.size, 4799 sli4->bmbx.virt, sli4->bmbx.phys); 4800 memset(&sli4->bmbx, 0, sizeof(struct efc_dma)); 4801 } 4802 4803 int 4804 sli_callback(struct sli4 *sli4, enum sli4_callback which, 4805 void *func, void *arg) 4806 { 4807 if (!func) { 4808 efc_log_err(sli4, "bad parameter sli4=%p which=%#x func=%p\n", 4809 sli4, which, func); 4810 return -EIO; 4811 } 4812 4813 switch (which) { 4814 case SLI4_CB_LINK: 4815 sli4->link = func; 4816 sli4->link_arg = arg; 4817 break; 4818 default: 4819 efc_log_info(sli4, "unknown callback %#x\n", which); 4820 return -EIO; 4821 } 4822 4823 return 0; 4824 } 4825 4826 int 4827 sli_eq_modify_delay(struct sli4 *sli4, struct sli4_queue *eq, 4828 u32 num_eq, u32 shift, u32 delay_mult) 4829 { 4830 sli_cmd_common_modify_eq_delay(sli4, sli4->bmbx.virt, eq, num_eq, 4831 shift, delay_mult); 4832 4833 if (sli_bmbx_command(sli4)) { 4834 efc_log_crit(sli4, "bootstrap mailbox write fail (MODIFY EQ DELAY)\n"); 4835 return -EIO; 4836 } 4837 if (sli_res_sli_config(sli4, sli4->bmbx.virt)) { 4838 efc_log_err(sli4, "bad status MODIFY EQ DELAY\n"); 4839 return -EIO; 4840 } 4841 4842 return 0; 4843 } 4844 4845 int 4846 sli_resource_alloc(struct sli4 *sli4, enum sli4_resource rtype, 4847 u32 *rid, u32 *index) 4848 { 4849 int rc = 0; 4850 u32 size; 4851 u32 ext_idx; 4852 u32 item_idx; 4853 u32 position; 4854 4855 *rid = U32_MAX; 4856 *index = U32_MAX; 4857 4858 switch (rtype) { 4859 case SLI4_RSRC_VFI: 4860 case SLI4_RSRC_VPI: 4861 case SLI4_RSRC_RPI: 4862 case SLI4_RSRC_XRI: 4863 position = 4864 find_first_zero_bit(sli4->ext[rtype].use_map, 4865 sli4->ext[rtype].map_size); 4866 if (position >= sli4->ext[rtype].map_size) { 4867 efc_log_err(sli4, "out of resource %d (alloc=%d)\n", 4868 rtype, sli4->ext[rtype].n_alloc); 4869 rc = -EIO; 4870 break; 4871 } 4872 set_bit(position, sli4->ext[rtype].use_map); 4873 *index = position; 4874 4875 size = sli4->ext[rtype].size; 4876 4877 ext_idx = *index / size; 4878 item_idx = *index % size; 4879 4880 *rid = sli4->ext[rtype].base[ext_idx] + item_idx; 4881 4882 sli4->ext[rtype].n_alloc++; 4883 break; 4884 default: 4885 rc = -EIO; 4886 } 4887 4888 return rc; 4889 } 4890 4891 int 4892 sli_resource_free(struct sli4 *sli4, enum sli4_resource rtype, u32 rid) 4893 { 4894 int rc = -EIO; 4895 u32 x; 4896 u32 size, *base; 4897 4898 switch (rtype) { 4899 case SLI4_RSRC_VFI: 4900 case SLI4_RSRC_VPI: 4901 case SLI4_RSRC_RPI: 4902 case SLI4_RSRC_XRI: 4903 /* 4904 * Figure out which extent contains the resource ID. I.e. find 4905 * the extent such that 4906 * extent->base <= resource ID < extent->base + extent->size 4907 */ 4908 base = sli4->ext[rtype].base; 4909 size = sli4->ext[rtype].size; 4910 4911 /* 4912 * In the case of FW reset, this may be cleared 4913 * but the force_free path will still attempt to 4914 * free the resource. Prevent a NULL pointer access. 4915 */ 4916 if (!base) 4917 break; 4918 4919 for (x = 0; x < sli4->ext[rtype].number; x++) { 4920 if ((rid < base[x] || (rid >= (base[x] + size)))) 4921 continue; 4922 4923 rid -= base[x]; 4924 clear_bit((x * size) + rid, sli4->ext[rtype].use_map); 4925 rc = 0; 4926 break; 4927 } 4928 break; 4929 default: 4930 break; 4931 } 4932 4933 return rc; 4934 } 4935 4936 int 4937 sli_resource_reset(struct sli4 *sli4, enum sli4_resource rtype) 4938 { 4939 int rc = -EIO; 4940 u32 i; 4941 4942 switch (rtype) { 4943 case SLI4_RSRC_VFI: 4944 case SLI4_RSRC_VPI: 4945 case SLI4_RSRC_RPI: 4946 case SLI4_RSRC_XRI: 4947 for (i = 0; i < sli4->ext[rtype].map_size; i++) 4948 clear_bit(i, sli4->ext[rtype].use_map); 4949 rc = 0; 4950 break; 4951 default: 4952 break; 4953 } 4954 4955 return rc; 4956 } 4957 4958 int sli_raise_ue(struct sli4 *sli4, u8 dump) 4959 { 4960 u32 val = 0; 4961 4962 if (dump == SLI4_FUNC_DESC_DUMP) { 4963 val = SLI4_PORT_CTRL_FDD | SLI4_PORT_CTRL_IP; 4964 writel(val, (sli4->reg[0] + SLI4_PORT_CTRL_REG)); 4965 } else { 4966 val = SLI4_PHYDEV_CTRL_FRST; 4967 4968 if (dump == SLI4_CHIP_LEVEL_DUMP) 4969 val |= SLI4_PHYDEV_CTRL_DD; 4970 writel(val, (sli4->reg[0] + SLI4_PHYDEV_CTRL_REG)); 4971 } 4972 4973 return 0; 4974 } 4975 4976 int sli_dump_is_ready(struct sli4 *sli4) 4977 { 4978 int rc = SLI4_DUMP_READY_STATUS_NOT_READY; 4979 u32 port_val; 4980 u32 bmbx_val; 4981 4982 /* 4983 * Ensure that the port is ready AND the mailbox is 4984 * ready before signaling that the dump is ready to go. 4985 */ 4986 port_val = sli_reg_read_status(sli4); 4987 bmbx_val = readl(sli4->reg[0] + SLI4_BMBX_REG); 4988 4989 if ((bmbx_val & SLI4_BMBX_RDY) && 4990 (port_val & SLI4_PORT_STATUS_RDY)) { 4991 if (port_val & SLI4_PORT_STATUS_DIP) 4992 rc = SLI4_DUMP_READY_STATUS_DD_PRESENT; 4993 else if (port_val & SLI4_PORT_STATUS_FDP) 4994 rc = SLI4_DUMP_READY_STATUS_FDB_PRESENT; 4995 } 4996 4997 return rc; 4998 } 4999 5000 bool sli_reset_required(struct sli4 *sli4) 5001 { 5002 u32 val; 5003 5004 val = sli_reg_read_status(sli4); 5005 return (val & SLI4_PORT_STATUS_RN); 5006 } 5007 5008 int 5009 sli_cmd_post_sgl_pages(struct sli4 *sli4, void *buf, u16 xri, 5010 u32 xri_count, struct efc_dma *page0[], 5011 struct efc_dma *page1[], struct efc_dma *dma) 5012 { 5013 struct sli4_rqst_post_sgl_pages *post = NULL; 5014 u32 i; 5015 __le32 req_len; 5016 5017 post = sli_config_cmd_init(sli4, buf, 5018 SLI4_CFG_PYLD_LENGTH(post_sgl_pages), dma); 5019 if (!post) 5020 return -EIO; 5021 5022 /* payload size calculation */ 5023 /* 4 = xri_start + xri_count */ 5024 /* xri_count = # of XRI's registered */ 5025 /* sizeof(uint64_t) = physical address size */ 5026 /* 2 = # of physical addresses per page set */ 5027 req_len = cpu_to_le32(4 + (xri_count * (sizeof(uint64_t) * 2))); 5028 sli_cmd_fill_hdr(&post->hdr, SLI4_OPC_POST_SGL_PAGES, SLI4_SUBSYSTEM_FC, 5029 CMD_V0, req_len); 5030 post->xri_start = cpu_to_le16(xri); 5031 post->xri_count = cpu_to_le16(xri_count); 5032 5033 for (i = 0; i < xri_count; i++) { 5034 post->page_set[i].page0_low = 5035 cpu_to_le32(lower_32_bits(page0[i]->phys)); 5036 post->page_set[i].page0_high = 5037 cpu_to_le32(upper_32_bits(page0[i]->phys)); 5038 } 5039 5040 if (page1) { 5041 for (i = 0; i < xri_count; i++) { 5042 post->page_set[i].page1_low = 5043 cpu_to_le32(lower_32_bits(page1[i]->phys)); 5044 post->page_set[i].page1_high = 5045 cpu_to_le32(upper_32_bits(page1[i]->phys)); 5046 } 5047 } 5048 5049 return 0; 5050 } 5051 5052 int 5053 sli_cmd_post_hdr_templates(struct sli4 *sli4, void *buf, struct efc_dma *dma, 5054 u16 rpi, struct efc_dma *payload_dma) 5055 { 5056 struct sli4_rqst_post_hdr_templates *req = NULL; 5057 uintptr_t phys = 0; 5058 u32 i = 0; 5059 u32 page_count, payload_size; 5060 5061 page_count = sli_page_count(dma->size, SLI_PAGE_SIZE); 5062 5063 payload_size = ((sizeof(struct sli4_rqst_post_hdr_templates) + 5064 (page_count * SZ_DMAADDR)) - sizeof(struct sli4_rqst_hdr)); 5065 5066 if (page_count > 16) { 5067 /* 5068 * We can't fit more than 16 descriptors into an embedded mbox 5069 * command, it has to be non-embedded 5070 */ 5071 payload_dma->size = payload_size; 5072 payload_dma->virt = dma_alloc_coherent(&sli4->pci->dev, 5073 payload_dma->size, 5074 &payload_dma->phys, GFP_DMA); 5075 if (!payload_dma->virt) { 5076 memset(payload_dma, 0, sizeof(struct efc_dma)); 5077 efc_log_err(sli4, "mbox payload memory allocation fail\n"); 5078 return -EIO; 5079 } 5080 req = sli_config_cmd_init(sli4, buf, payload_size, payload_dma); 5081 } else { 5082 req = sli_config_cmd_init(sli4, buf, payload_size, NULL); 5083 } 5084 5085 if (!req) 5086 return -EIO; 5087 5088 if (rpi == U16_MAX) 5089 rpi = sli4->ext[SLI4_RSRC_RPI].base[0]; 5090 5091 sli_cmd_fill_hdr(&req->hdr, SLI4_OPC_POST_HDR_TEMPLATES, 5092 SLI4_SUBSYSTEM_FC, CMD_V0, 5093 SLI4_RQST_PYLD_LEN(post_hdr_templates)); 5094 5095 req->rpi_offset = cpu_to_le16(rpi); 5096 req->page_count = cpu_to_le16(page_count); 5097 phys = dma->phys; 5098 for (i = 0; i < page_count; i++) { 5099 req->page_descriptor[i].low = cpu_to_le32(lower_32_bits(phys)); 5100 req->page_descriptor[i].high = cpu_to_le32(upper_32_bits(phys)); 5101 5102 phys += SLI_PAGE_SIZE; 5103 } 5104 5105 return 0; 5106 } 5107 5108 u32 5109 sli_fc_get_rpi_requirements(struct sli4 *sli4, u32 n_rpi) 5110 { 5111 u32 bytes = 0; 5112 5113 /* Check if header templates needed */ 5114 if (sli4->params.hdr_template_req) 5115 /* round up to a page */ 5116 bytes = round_up(n_rpi * SLI4_HDR_TEMPLATE_SIZE, SLI_PAGE_SIZE); 5117 5118 return bytes; 5119 } 5120 5121 const char * 5122 sli_fc_get_status_string(u32 status) 5123 { 5124 static struct { 5125 u32 code; 5126 const char *label; 5127 } lookup[] = { 5128 {SLI4_FC_WCQE_STATUS_SUCCESS, "SUCCESS"}, 5129 {SLI4_FC_WCQE_STATUS_FCP_RSP_FAILURE, "FCP_RSP_FAILURE"}, 5130 {SLI4_FC_WCQE_STATUS_REMOTE_STOP, "REMOTE_STOP"}, 5131 {SLI4_FC_WCQE_STATUS_LOCAL_REJECT, "LOCAL_REJECT"}, 5132 {SLI4_FC_WCQE_STATUS_NPORT_RJT, "NPORT_RJT"}, 5133 {SLI4_FC_WCQE_STATUS_FABRIC_RJT, "FABRIC_RJT"}, 5134 {SLI4_FC_WCQE_STATUS_NPORT_BSY, "NPORT_BSY"}, 5135 {SLI4_FC_WCQE_STATUS_FABRIC_BSY, "FABRIC_BSY"}, 5136 {SLI4_FC_WCQE_STATUS_LS_RJT, "LS_RJT"}, 5137 {SLI4_FC_WCQE_STATUS_CMD_REJECT, "CMD_REJECT"}, 5138 {SLI4_FC_WCQE_STATUS_FCP_TGT_LENCHECK, "FCP_TGT_LENCHECK"}, 5139 {SLI4_FC_WCQE_STATUS_RQ_BUF_LEN_EXCEEDED, "BUF_LEN_EXCEEDED"}, 5140 {SLI4_FC_WCQE_STATUS_RQ_INSUFF_BUF_NEEDED, 5141 "RQ_INSUFF_BUF_NEEDED"}, 5142 {SLI4_FC_WCQE_STATUS_RQ_INSUFF_FRM_DISC, "RQ_INSUFF_FRM_DESC"}, 5143 {SLI4_FC_WCQE_STATUS_RQ_DMA_FAILURE, "RQ_DMA_FAILURE"}, 5144 {SLI4_FC_WCQE_STATUS_FCP_RSP_TRUNCATE, "FCP_RSP_TRUNCATE"}, 5145 {SLI4_FC_WCQE_STATUS_DI_ERROR, "DI_ERROR"}, 5146 {SLI4_FC_WCQE_STATUS_BA_RJT, "BA_RJT"}, 5147 {SLI4_FC_WCQE_STATUS_RQ_INSUFF_XRI_NEEDED, 5148 "RQ_INSUFF_XRI_NEEDED"}, 5149 {SLI4_FC_WCQE_STATUS_RQ_INSUFF_XRI_DISC, "INSUFF_XRI_DISC"}, 5150 {SLI4_FC_WCQE_STATUS_RX_ERROR_DETECT, "RX_ERROR_DETECT"}, 5151 {SLI4_FC_WCQE_STATUS_RX_ABORT_REQUEST, "RX_ABORT_REQUEST"}, 5152 }; 5153 u32 i; 5154 5155 for (i = 0; i < ARRAY_SIZE(lookup); i++) { 5156 if (status == lookup[i].code) 5157 return lookup[i].label; 5158 } 5159 return "unknown"; 5160 } 5161