1 /* 2 * Copyright (c) 2018-2019 Cavium, Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 19 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * File : ecore_iwarp.c 30 */ 31 #include <sys/cdefs.h> 32 #include "bcm_osal.h" 33 #include "ecore.h" 34 #include "ecore_status.h" 35 #include "ecore_sp_commands.h" 36 #include "ecore_cxt.h" 37 #include "ecore_rdma.h" 38 #include "reg_addr.h" 39 #include "ecore_hw.h" 40 #include "ecore_hsi_iwarp.h" 41 #include "ecore_ll2.h" 42 #include "ecore_ooo.h" 43 #ifndef LINUX_REMOVE 44 #include "ecore_tcp_ip.h" 45 #endif 46 47 #ifdef _NTDDK_ 48 #pragma warning(push) 49 #pragma warning(disable : 28123) 50 #pragma warning(disable : 28167) 51 #endif 52 53 /* Default values used for MPA Rev 1 */ 54 #define ECORE_IWARP_ORD_DEFAULT 32 55 #define ECORE_IWARP_IRD_DEFAULT 32 56 57 #define ECORE_IWARP_MAX_FW_MSS 4120 58 59 struct mpa_v2_hdr { 60 __be16 ird; 61 __be16 ord; 62 }; 63 64 #define MPA_V2_PEER2PEER_MODEL 0x8000 65 #define MPA_V2_SEND_RTR 0x4000 /* on ird */ 66 #define MPA_V2_READ_RTR 0x4000 /* on ord */ 67 #define MPA_V2_WRITE_RTR 0x8000 68 #define MPA_V2_IRD_ORD_MASK 0x3FFF 69 70 #define MPA_REV2(_mpa_rev) (_mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) 71 72 #define ECORE_IWARP_INVALID_TCP_CID 0xffffffff 73 /* How many times fin will be sent before FW aborts and send RST */ 74 #define ECORE_IWARP_MAX_FIN_RT_DEFAULT 2 75 #define ECORE_IWARP_RCV_WND_SIZE_MIN (0xffff) 76 /* INTERNAL: These numbers are derived from BRB buffer sizes to obtain optimal performance */ 77 #define ECORE_IWARP_RCV_WND_SIZE_BB_DEF_2_PORTS (200*1024) 78 #define ECORE_IWARP_RCV_WND_SIZE_BB_DEF_4_PORTS (100*1024) 79 #define ECORE_IWARP_RCV_WND_SIZE_AH_DEF_2_PORTS (150*1024) 80 #define ECORE_IWARP_RCV_WND_SIZE_AH_DEF_4_PORTS (90*1024) 81 #define ECORE_IWARP_MAX_WND_SCALE (14) 82 /* Timestamp header is the length of the timestamp option (10): 83 * kind:8 bit, length:8 bit, timestamp:32 bit, ack: 32bit 84 * rounded up to a multiple of 4 85 */ 86 #define TIMESTAMP_HEADER_SIZE (12) 87 88 static enum _ecore_status_t 89 ecore_iwarp_async_event(struct ecore_hwfn *p_hwfn, 90 u8 fw_event_code, 91 u16 OSAL_UNUSED echo, 92 union event_ring_data *data, 93 u8 fw_return_code); 94 95 static enum _ecore_status_t 96 ecore_iwarp_empty_ramrod(struct ecore_hwfn *p_hwfn, 97 struct ecore_iwarp_listener *listener); 98 99 static OSAL_INLINE struct ecore_iwarp_fpdu * 100 ecore_iwarp_get_curr_fpdu(struct ecore_hwfn *p_hwfn, u16 cid); 101 102 /* Override devinfo with iWARP specific values */ 103 void 104 ecore_iwarp_init_devinfo(struct ecore_hwfn *p_hwfn) 105 { 106 struct ecore_rdma_device *dev = p_hwfn->p_rdma_info->dev; 107 108 dev->max_inline = IWARP_REQ_MAX_INLINE_DATA_SIZE; 109 dev->max_qp = OSAL_MIN_T(u64, 110 IWARP_MAX_QPS, 111 p_hwfn->p_rdma_info->num_qps) - 112 ECORE_IWARP_PREALLOC_CNT; 113 114 dev->max_cq = dev->max_qp; 115 116 dev->max_qp_resp_rd_atomic_resc = ECORE_IWARP_IRD_DEFAULT; 117 dev->max_qp_req_rd_atomic_resc = ECORE_IWARP_ORD_DEFAULT; 118 } 119 120 enum _ecore_status_t 121 ecore_iwarp_init_hw(struct ecore_hwfn *p_hwfn, struct ecore_ptt *p_ptt) 122 { 123 p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_TCP; 124 ecore_wr(p_hwfn, p_ptt, p_hwfn->rdma_prs_search_reg, 1); 125 p_hwfn->b_rdma_enabled_in_prs = true; 126 127 return 0; 128 } 129 130 void 131 ecore_iwarp_init_fw_ramrod(struct ecore_hwfn *p_hwfn, 132 struct iwarp_init_func_ramrod_data *p_ramrod) 133 { 134 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 135 "ooo handle = %d\n", 136 p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle); 137 138 p_ramrod->iwarp.ll2_ooo_q_index = 139 p_hwfn->hw_info.resc_start[ECORE_LL2_QUEUE] + 140 p_hwfn->p_rdma_info->iwarp.ll2_ooo_handle; 141 142 p_ramrod->tcp.max_fin_rt = ECORE_IWARP_MAX_FIN_RT_DEFAULT; 143 return; 144 } 145 146 static enum _ecore_status_t 147 ecore_iwarp_alloc_cid(struct ecore_hwfn *p_hwfn, u32 *cid) 148 { 149 enum _ecore_status_t rc; 150 151 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); 152 153 rc = ecore_rdma_bmap_alloc_id(p_hwfn, 154 &p_hwfn->p_rdma_info->cid_map, 155 cid); 156 157 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); 158 *cid += ecore_cxt_get_proto_cid_start(p_hwfn, 159 p_hwfn->p_rdma_info->proto); 160 if (rc != ECORE_SUCCESS) { 161 DP_NOTICE(p_hwfn, false, "Failed in allocating iwarp cid\n"); 162 return rc; 163 } 164 165 rc = ecore_cxt_dynamic_ilt_alloc(p_hwfn, ECORE_ELEM_CXT, *cid); 166 167 if (rc != ECORE_SUCCESS) { 168 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); 169 *cid -= ecore_cxt_get_proto_cid_start(p_hwfn, 170 p_hwfn->p_rdma_info->proto); 171 172 ecore_bmap_release_id(p_hwfn, 173 &p_hwfn->p_rdma_info->cid_map, 174 *cid); 175 176 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); 177 } 178 179 return rc; 180 } 181 182 static void 183 ecore_iwarp_set_tcp_cid(struct ecore_hwfn *p_hwfn, u32 cid) 184 { 185 cid -= ecore_cxt_get_proto_cid_start(p_hwfn, 186 p_hwfn->p_rdma_info->proto); 187 188 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); 189 ecore_bmap_set_id(p_hwfn, 190 &p_hwfn->p_rdma_info->tcp_cid_map, 191 cid); 192 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); 193 } 194 195 /* This function allocates a cid for passive tcp ( called from syn receive) 196 * the reason it's separate from the regular cid allocation is because it 197 * is assured that these cids already have ilt alloacted. They are preallocated 198 * to ensure that we won't need to allocate memory during syn processing 199 */ 200 static enum _ecore_status_t 201 ecore_iwarp_alloc_tcp_cid(struct ecore_hwfn *p_hwfn, u32 *cid) 202 { 203 enum _ecore_status_t rc; 204 205 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); 206 207 rc = ecore_rdma_bmap_alloc_id(p_hwfn, 208 &p_hwfn->p_rdma_info->tcp_cid_map, 209 cid); 210 211 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); 212 213 *cid += ecore_cxt_get_proto_cid_start(p_hwfn, 214 p_hwfn->p_rdma_info->proto); 215 if (rc != ECORE_SUCCESS) { 216 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 217 "can't allocate iwarp tcp cid max-count=%d\n", 218 p_hwfn->p_rdma_info->tcp_cid_map.max_count); 219 220 *cid = ECORE_IWARP_INVALID_TCP_CID; 221 } 222 223 return rc; 224 } 225 226 /* We have two cid maps, one for tcp which should be used only from passive 227 * syn processing and replacing a pre-allocated ep in the list. the second 228 * for active tcp and for QPs. 229 */ 230 static void ecore_iwarp_cid_cleaned(struct ecore_hwfn *p_hwfn, u32 cid) 231 { 232 cid -= ecore_cxt_get_proto_cid_start(p_hwfn, 233 p_hwfn->p_rdma_info->proto); 234 235 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); 236 237 if (cid < ECORE_IWARP_PREALLOC_CNT) { 238 ecore_bmap_release_id(p_hwfn, 239 &p_hwfn->p_rdma_info->tcp_cid_map, 240 cid); 241 } else { 242 ecore_bmap_release_id(p_hwfn, 243 &p_hwfn->p_rdma_info->cid_map, 244 cid); 245 } 246 247 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); 248 } 249 250 enum _ecore_status_t 251 ecore_iwarp_create_qp(struct ecore_hwfn *p_hwfn, 252 struct ecore_rdma_qp *qp, 253 struct ecore_rdma_create_qp_out_params *out_params) 254 { 255 struct iwarp_create_qp_ramrod_data *p_ramrod; 256 struct ecore_sp_init_data init_data; 257 struct ecore_spq_entry *p_ent; 258 enum _ecore_status_t rc; 259 u16 physical_queue; 260 u32 cid; 261 262 qp->shared_queue = 263 OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, 264 &qp->shared_queue_phys_addr, 265 IWARP_SHARED_QUEUE_PAGE_SIZE); 266 if (!qp->shared_queue) { 267 DP_NOTICE(p_hwfn, false, 268 "ecore iwarp create qp failed: cannot allocate memory (shared queue).\n"); 269 return ECORE_NOMEM; 270 } else { 271 out_params->sq_pbl_virt = (u8 *)qp->shared_queue + 272 IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET; 273 out_params->sq_pbl_phys = qp->shared_queue_phys_addr + 274 IWARP_SHARED_QUEUE_PAGE_SQ_PBL_OFFSET; 275 out_params->rq_pbl_virt = (u8 *)qp->shared_queue + 276 IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET; 277 out_params->rq_pbl_phys = qp->shared_queue_phys_addr + 278 IWARP_SHARED_QUEUE_PAGE_RQ_PBL_OFFSET; 279 } 280 281 rc = ecore_iwarp_alloc_cid(p_hwfn, &cid); 282 if (rc != ECORE_SUCCESS) 283 goto err1; 284 285 qp->icid = (u16)cid; 286 287 OSAL_MEMSET(&init_data, 0, sizeof(init_data)); 288 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 289 init_data.cid = qp->icid; 290 init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK; 291 292 rc = ecore_sp_init_request(p_hwfn, &p_ent, 293 IWARP_RAMROD_CMD_ID_CREATE_QP, 294 PROTOCOLID_IWARP, &init_data); 295 if (rc != ECORE_SUCCESS) 296 return rc; 297 298 p_ramrod = &p_ent->ramrod.iwarp_create_qp; 299 300 SET_FIELD(p_ramrod->flags, 301 IWARP_CREATE_QP_RAMROD_DATA_FMR_AND_RESERVED_EN, 302 qp->fmr_and_reserved_lkey); 303 304 SET_FIELD(p_ramrod->flags, 305 IWARP_CREATE_QP_RAMROD_DATA_SIGNALED_COMP, 306 qp->signal_all); 307 308 SET_FIELD(p_ramrod->flags, 309 IWARP_CREATE_QP_RAMROD_DATA_RDMA_RD_EN, 310 qp->incoming_rdma_read_en); 311 312 SET_FIELD(p_ramrod->flags, 313 IWARP_CREATE_QP_RAMROD_DATA_RDMA_WR_EN, 314 qp->incoming_rdma_write_en); 315 316 SET_FIELD(p_ramrod->flags, 317 IWARP_CREATE_QP_RAMROD_DATA_ATOMIC_EN, 318 qp->incoming_atomic_en); 319 320 SET_FIELD(p_ramrod->flags, 321 IWARP_CREATE_QP_RAMROD_DATA_SRQ_FLG, 322 qp->use_srq); 323 324 p_ramrod->pd = qp->pd; 325 p_ramrod->sq_num_pages = qp->sq_num_pages; 326 p_ramrod->rq_num_pages = qp->rq_num_pages; 327 328 p_ramrod->qp_handle_for_cqe.hi = OSAL_CPU_TO_LE32(qp->qp_handle.hi); 329 p_ramrod->qp_handle_for_cqe.lo = OSAL_CPU_TO_LE32(qp->qp_handle.lo); 330 331 p_ramrod->cq_cid_for_sq = 332 OSAL_CPU_TO_LE32((p_hwfn->hw_info.opaque_fid << 16) | 333 qp->sq_cq_id); 334 p_ramrod->cq_cid_for_rq = 335 OSAL_CPU_TO_LE32((p_hwfn->hw_info.opaque_fid << 16) | 336 qp->rq_cq_id); 337 338 p_ramrod->dpi = OSAL_CPU_TO_LE16(qp->dpi); 339 340 physical_queue = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); 341 p_ramrod->physical_q0 = OSAL_CPU_TO_LE16(physical_queue); 342 physical_queue = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); 343 p_ramrod->physical_q1 = OSAL_CPU_TO_LE16(physical_queue); 344 345 rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); 346 347 if (rc != ECORE_SUCCESS) 348 goto err1; 349 350 return rc; 351 352 err1: 353 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, 354 qp->shared_queue, 355 qp->shared_queue_phys_addr, 356 IWARP_SHARED_QUEUE_PAGE_SIZE); 357 358 return rc; 359 } 360 361 static enum _ecore_status_t 362 ecore_iwarp_modify_fw(struct ecore_hwfn *p_hwfn, 363 struct ecore_rdma_qp *qp) 364 { 365 struct iwarp_modify_qp_ramrod_data *p_ramrod; 366 struct ecore_sp_init_data init_data; 367 struct ecore_spq_entry *p_ent; 368 enum _ecore_status_t rc; 369 370 /* Get SPQ entry */ 371 OSAL_MEMSET(&init_data, 0, sizeof(init_data)); 372 init_data.cid = qp->icid; 373 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 374 init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK; 375 376 rc = ecore_sp_init_request(p_hwfn, &p_ent, 377 IWARP_RAMROD_CMD_ID_MODIFY_QP, 378 p_hwfn->p_rdma_info->proto, 379 &init_data); 380 if (rc != ECORE_SUCCESS) 381 return rc; 382 383 p_ramrod = &p_ent->ramrod.iwarp_modify_qp; 384 SET_FIELD(p_ramrod->flags, IWARP_MODIFY_QP_RAMROD_DATA_STATE_TRANS_EN, 385 0x1); 386 if (qp->iwarp_state == ECORE_IWARP_QP_STATE_CLOSING) 387 p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_CLOSING; 388 else 389 p_ramrod->transition_to_state = IWARP_MODIFY_QP_STATE_ERROR; 390 391 rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); 392 393 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x)rc=%d\n", 394 qp->icid, rc); 395 396 return rc; 397 } 398 399 enum ecore_iwarp_qp_state 400 ecore_roce2iwarp_state(enum ecore_roce_qp_state state) 401 { 402 switch (state) { 403 case ECORE_ROCE_QP_STATE_RESET: 404 case ECORE_ROCE_QP_STATE_INIT: 405 case ECORE_ROCE_QP_STATE_RTR: 406 return ECORE_IWARP_QP_STATE_IDLE; 407 case ECORE_ROCE_QP_STATE_RTS: 408 return ECORE_IWARP_QP_STATE_RTS; 409 case ECORE_ROCE_QP_STATE_SQD: 410 return ECORE_IWARP_QP_STATE_CLOSING; 411 case ECORE_ROCE_QP_STATE_ERR: 412 return ECORE_IWARP_QP_STATE_ERROR; 413 case ECORE_ROCE_QP_STATE_SQE: 414 return ECORE_IWARP_QP_STATE_TERMINATE; 415 } 416 return ECORE_IWARP_QP_STATE_ERROR; 417 } 418 419 static enum ecore_roce_qp_state 420 ecore_iwarp2roce_state(enum ecore_iwarp_qp_state state) 421 { 422 switch (state) { 423 case ECORE_IWARP_QP_STATE_IDLE: 424 return ECORE_ROCE_QP_STATE_INIT; 425 case ECORE_IWARP_QP_STATE_RTS: 426 return ECORE_ROCE_QP_STATE_RTS; 427 case ECORE_IWARP_QP_STATE_TERMINATE: 428 return ECORE_ROCE_QP_STATE_SQE; 429 case ECORE_IWARP_QP_STATE_CLOSING: 430 return ECORE_ROCE_QP_STATE_SQD; 431 case ECORE_IWARP_QP_STATE_ERROR: 432 return ECORE_ROCE_QP_STATE_ERR; 433 } 434 return ECORE_ROCE_QP_STATE_ERR; 435 } 436 437 const char *iwarp_state_names[] = { 438 "IDLE", 439 "RTS", 440 "TERMINATE", 441 "CLOSING", 442 "ERROR", 443 }; 444 445 enum _ecore_status_t 446 ecore_iwarp_modify_qp(struct ecore_hwfn *p_hwfn, 447 struct ecore_rdma_qp *qp, 448 enum ecore_iwarp_qp_state new_state, 449 bool internal) 450 { 451 enum ecore_iwarp_qp_state prev_iw_state; 452 enum _ecore_status_t rc = 0; 453 bool modify_fw = false; 454 455 /* modify QP can be called from upper-layer or as a result of async 456 * RST/FIN... therefore need to protect 457 */ 458 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.qp_lock); 459 prev_iw_state = qp->iwarp_state; 460 461 if (prev_iw_state == new_state) { 462 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.qp_lock); 463 return ECORE_SUCCESS; 464 } 465 466 switch (prev_iw_state) { 467 case ECORE_IWARP_QP_STATE_IDLE: 468 switch (new_state) { 469 case ECORE_IWARP_QP_STATE_RTS: 470 qp->iwarp_state = ECORE_IWARP_QP_STATE_RTS; 471 break; 472 case ECORE_IWARP_QP_STATE_ERROR: 473 qp->iwarp_state = ECORE_IWARP_QP_STATE_ERROR; 474 if (!internal) 475 modify_fw = true; 476 break; 477 default: 478 break; 479 } 480 break; 481 case ECORE_IWARP_QP_STATE_RTS: 482 switch (new_state) { 483 case ECORE_IWARP_QP_STATE_CLOSING: 484 if (!internal) 485 modify_fw = true; 486 487 qp->iwarp_state = ECORE_IWARP_QP_STATE_CLOSING; 488 break; 489 case ECORE_IWARP_QP_STATE_ERROR: 490 if (!internal) 491 modify_fw = true; 492 qp->iwarp_state = ECORE_IWARP_QP_STATE_ERROR; 493 break; 494 default: 495 break; 496 } 497 break; 498 case ECORE_IWARP_QP_STATE_ERROR: 499 switch (new_state) { 500 case ECORE_IWARP_QP_STATE_IDLE: 501 /* TODO: destroy flow -> need to destroy EP&QP */ 502 qp->iwarp_state = new_state; 503 break; 504 case ECORE_IWARP_QP_STATE_CLOSING: 505 /* could happen due to race... do nothing.... */ 506 break; 507 default: 508 rc = ECORE_INVAL; 509 } 510 break; 511 case ECORE_IWARP_QP_STATE_TERMINATE: 512 case ECORE_IWARP_QP_STATE_CLOSING: 513 qp->iwarp_state = new_state; 514 break; 515 default: 516 break; 517 } 518 519 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) %s --> %s %s\n", 520 qp->icid, 521 iwarp_state_names[prev_iw_state], 522 iwarp_state_names[qp->iwarp_state], 523 internal ? "internal" : " "); 524 525 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.qp_lock); 526 527 if (modify_fw) 528 ecore_iwarp_modify_fw(p_hwfn, qp); 529 530 return rc; 531 } 532 533 enum _ecore_status_t 534 ecore_iwarp_fw_destroy(struct ecore_hwfn *p_hwfn, 535 struct ecore_rdma_qp *qp) 536 { 537 struct ecore_sp_init_data init_data; 538 struct ecore_spq_entry *p_ent; 539 enum _ecore_status_t rc; 540 541 /* Get SPQ entry */ 542 OSAL_MEMSET(&init_data, 0, sizeof(init_data)); 543 init_data.cid = qp->icid; 544 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 545 init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK; 546 547 rc = ecore_sp_init_request(p_hwfn, &p_ent, 548 IWARP_RAMROD_CMD_ID_DESTROY_QP, 549 p_hwfn->p_rdma_info->proto, 550 &init_data); 551 if (rc != ECORE_SUCCESS) 552 return rc; 553 554 rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); 555 556 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) rc = %d\n", qp->icid, rc); 557 558 return rc; 559 } 560 561 static void ecore_iwarp_destroy_ep(struct ecore_hwfn *p_hwfn, 562 struct ecore_iwarp_ep *ep, 563 bool remove_from_active_list) 564 { 565 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, 566 ep->ep_buffer_virt, 567 ep->ep_buffer_phys, 568 sizeof(*ep->ep_buffer_virt)); 569 570 if (remove_from_active_list) { 571 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 572 573 OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, 574 &p_hwfn->p_rdma_info->iwarp.ep_list); 575 576 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 577 } 578 579 if (ep->qp) 580 ep->qp->ep = OSAL_NULL; 581 582 OSAL_FREE(p_hwfn->p_dev, ep); 583 } 584 585 enum _ecore_status_t 586 ecore_iwarp_destroy_qp(struct ecore_hwfn *p_hwfn, 587 struct ecore_rdma_qp *qp) 588 { 589 enum _ecore_status_t rc = ECORE_SUCCESS; 590 struct ecore_iwarp_ep *ep = qp->ep; 591 struct ecore_iwarp_fpdu *fpdu; 592 int wait_count = 0; 593 594 fpdu = ecore_iwarp_get_curr_fpdu(p_hwfn, qp->icid); 595 if (fpdu && fpdu->incomplete_bytes) 596 DP_NOTICE(p_hwfn, false, 597 "Pending Partial fpdu with incomplete bytes=%d\n", 598 fpdu->incomplete_bytes); 599 600 if (qp->iwarp_state != ECORE_IWARP_QP_STATE_ERROR) { 601 rc = ecore_iwarp_modify_qp(p_hwfn, qp, 602 ECORE_IWARP_QP_STATE_ERROR, 603 false); 604 605 if (rc != ECORE_SUCCESS) 606 return rc; 607 } 608 609 /* Make sure ep is closed before returning and freeing memory. */ 610 if (ep) { 611 while (ep->state != ECORE_IWARP_EP_CLOSED) { 612 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 613 "Waiting for ep->state to be closed...state=%x\n", 614 ep->state); 615 616 OSAL_MSLEEP(100); 617 if (wait_count++ > 200) { 618 DP_NOTICE(p_hwfn, false, "ep state close timeout state=%x\n", 619 ep->state); 620 break; 621 } 622 } 623 624 ecore_iwarp_destroy_ep(p_hwfn, ep, false); 625 } 626 627 rc = ecore_iwarp_fw_destroy(p_hwfn, qp); 628 629 if (qp->shared_queue) 630 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, 631 qp->shared_queue, 632 qp->shared_queue_phys_addr, 633 IWARP_SHARED_QUEUE_PAGE_SIZE); 634 635 return rc; 636 } 637 638 static enum _ecore_status_t 639 ecore_iwarp_create_ep(struct ecore_hwfn *p_hwfn, 640 struct ecore_iwarp_ep **ep_out) 641 { 642 struct ecore_iwarp_ep *ep; 643 enum _ecore_status_t rc; 644 645 ep = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*ep)); 646 if (!ep) { 647 DP_NOTICE(p_hwfn, false, 648 "ecore create ep failed: cannot allocate memory (ep). rc = %d\n", 649 ECORE_NOMEM); 650 return ECORE_NOMEM; 651 } 652 653 ep->state = ECORE_IWARP_EP_INIT; 654 655 /* ep_buffer is allocated once and is structured as follows: 656 * [MAX_PRIV_DATA_LEN][MAX_PRIV_DATA_LEN][union async_output] 657 * We could have allocated this in three calls but since all together 658 * it is less than a page, we do one allocation and initialize pointers 659 * accordingly 660 */ 661 ep->ep_buffer_virt = OSAL_DMA_ALLOC_COHERENT( 662 p_hwfn->p_dev, 663 &ep->ep_buffer_phys, 664 sizeof(*ep->ep_buffer_virt)); 665 666 if (!ep->ep_buffer_virt) { 667 DP_NOTICE(p_hwfn, false, 668 "ecore create ep failed: cannot allocate memory (ulp buffer). rc = %d\n", 669 ECORE_NOMEM); 670 rc = ECORE_NOMEM; 671 goto err; 672 } 673 674 ep->sig = 0xdeadbeef; 675 676 *ep_out = ep; 677 678 return ECORE_SUCCESS; 679 680 err: 681 OSAL_FREE(p_hwfn->p_dev, ep); 682 return rc; 683 } 684 685 static void 686 ecore_iwarp_print_tcp_ramrod(struct ecore_hwfn *p_hwfn, 687 struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod) 688 { 689 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, ">>> PRINT TCP RAMROD\n"); 690 691 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_mac=%x %x %x\n", 692 p_tcp_ramrod->tcp.local_mac_addr_lo, 693 p_tcp_ramrod->tcp.local_mac_addr_mid, 694 p_tcp_ramrod->tcp.local_mac_addr_hi); 695 696 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_mac=%x %x %x\n", 697 p_tcp_ramrod->tcp.remote_mac_addr_lo, 698 p_tcp_ramrod->tcp.remote_mac_addr_mid, 699 p_tcp_ramrod->tcp.remote_mac_addr_hi); 700 701 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "vlan_id=%x\n", 702 p_tcp_ramrod->tcp.vlan_id); 703 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "flags=%x\n", 704 p_tcp_ramrod->tcp.flags); 705 706 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ip_version=%x\n", 707 p_tcp_ramrod->tcp.ip_version); 708 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_ip=%x.%x.%x.%x\n", 709 p_tcp_ramrod->tcp.local_ip[0], 710 p_tcp_ramrod->tcp.local_ip[1], 711 p_tcp_ramrod->tcp.local_ip[2], 712 p_tcp_ramrod->tcp.local_ip[3]); 713 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_ip=%x.%x.%x.%x\n", 714 p_tcp_ramrod->tcp.remote_ip[0], 715 p_tcp_ramrod->tcp.remote_ip[1], 716 p_tcp_ramrod->tcp.remote_ip[2], 717 p_tcp_ramrod->tcp.remote_ip[3]); 718 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "flow_label=%x\n", 719 p_tcp_ramrod->tcp.flow_label); 720 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ttl=%x\n", 721 p_tcp_ramrod->tcp.ttl); 722 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "tos_or_tc=%x\n", 723 p_tcp_ramrod->tcp.tos_or_tc); 724 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_port=%x\n", 725 p_tcp_ramrod->tcp.local_port); 726 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_port=%x\n", 727 p_tcp_ramrod->tcp.remote_port); 728 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "mss=%x\n", 729 p_tcp_ramrod->tcp.mss); 730 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "rcv_wnd_scale=%x\n", 731 p_tcp_ramrod->tcp.rcv_wnd_scale); 732 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "connect_mode=%x\n", 733 p_tcp_ramrod->tcp.connect_mode); 734 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "syn_ip_payload_length=%x\n", 735 p_tcp_ramrod->tcp.syn_ip_payload_length); 736 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "syn_phy_addr_lo=%x\n", 737 p_tcp_ramrod->tcp.syn_phy_addr_lo); 738 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "syn_phy_addr_hi=%x\n", 739 p_tcp_ramrod->tcp.syn_phy_addr_hi); 740 741 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "<<<f PRINT TCP RAMROD\n"); 742 } 743 744 /* Default values for tcp option2 */ 745 #define ECORE_IWARP_DEF_MAX_RT_TIME (0) 746 #define ECORE_IWARP_DEF_CWND_FACTOR (4) 747 #define ECORE_IWARP_DEF_KA_MAX_PROBE_CNT (5) 748 #define ECORE_IWARP_DEF_KA_TIMEOUT (1200000) /* 20 min */ 749 #define ECORE_IWARP_DEF_KA_INTERVAL (1000) /* 1 sec */ 750 751 static enum _ecore_status_t 752 ecore_iwarp_tcp_offload(struct ecore_hwfn *p_hwfn, 753 struct ecore_iwarp_ep *ep) 754 { 755 struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 756 struct iwarp_tcp_offload_ramrod_data *p_tcp_ramrod; 757 struct ecore_sp_init_data init_data; 758 struct ecore_spq_entry *p_ent; 759 dma_addr_t async_output_phys; 760 dma_addr_t in_pdata_phys; 761 enum _ecore_status_t rc; 762 u16 physical_q; 763 u8 tcp_flags; 764 int i; 765 766 OSAL_MEMSET(&init_data, 0, sizeof(init_data)); 767 init_data.cid = ep->tcp_cid; 768 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 769 770 if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 771 init_data.comp_mode = ECORE_SPQ_MODE_CB; 772 } else { 773 init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK; 774 } 775 776 rc = ecore_sp_init_request(p_hwfn, &p_ent, 777 IWARP_RAMROD_CMD_ID_TCP_OFFLOAD, 778 PROTOCOLID_IWARP, &init_data); 779 if (rc != ECORE_SUCCESS) 780 return rc; 781 782 p_tcp_ramrod = &p_ent->ramrod.iwarp_tcp_offload; 783 784 /* Point to the "second half" of the ulp buffer */ 785 in_pdata_phys = ep->ep_buffer_phys + 786 OFFSETOF(struct ecore_iwarp_ep_memory, in_pdata); 787 p_tcp_ramrod->iwarp.incoming_ulp_buffer.addr.hi = 788 DMA_HI_LE(in_pdata_phys); 789 p_tcp_ramrod->iwarp.incoming_ulp_buffer.addr.lo = 790 DMA_LO_LE(in_pdata_phys); 791 p_tcp_ramrod->iwarp.incoming_ulp_buffer.len = 792 OSAL_CPU_TO_LE16(sizeof(ep->ep_buffer_virt->in_pdata)); 793 794 async_output_phys = ep->ep_buffer_phys + 795 OFFSETOF(struct ecore_iwarp_ep_memory, async_output); 796 797 p_tcp_ramrod->iwarp.async_eqe_output_buf.hi = 798 DMA_HI_LE(async_output_phys); 799 p_tcp_ramrod->iwarp.async_eqe_output_buf.lo = 800 DMA_LO_LE(async_output_phys); 801 p_tcp_ramrod->iwarp.handle_for_async.hi = OSAL_CPU_TO_LE32(PTR_HI(ep)); 802 p_tcp_ramrod->iwarp.handle_for_async.lo = OSAL_CPU_TO_LE32(PTR_LO(ep)); 803 804 physical_q = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_OFLD); 805 p_tcp_ramrod->iwarp.physical_q0 = OSAL_CPU_TO_LE16(physical_q); 806 physical_q = ecore_get_cm_pq_idx(p_hwfn, PQ_FLAGS_ACK); 807 p_tcp_ramrod->iwarp.physical_q1 = OSAL_CPU_TO_LE16(physical_q); 808 p_tcp_ramrod->iwarp.mpa_mode = iwarp_info->mpa_rev; 809 810 ecore_set_fw_mac_addr(&p_tcp_ramrod->tcp.remote_mac_addr_hi, 811 &p_tcp_ramrod->tcp.remote_mac_addr_mid, 812 &p_tcp_ramrod->tcp.remote_mac_addr_lo, 813 ep->remote_mac_addr); 814 ecore_set_fw_mac_addr(&p_tcp_ramrod->tcp.local_mac_addr_hi, 815 &p_tcp_ramrod->tcp.local_mac_addr_mid, 816 &p_tcp_ramrod->tcp.local_mac_addr_lo, 817 ep->local_mac_addr); 818 819 p_tcp_ramrod->tcp.vlan_id = OSAL_CPU_TO_LE16(ep->cm_info.vlan); 820 821 tcp_flags = p_hwfn->p_rdma_info->iwarp.tcp_flags; 822 p_tcp_ramrod->tcp.flags = 0; 823 SET_FIELD(p_tcp_ramrod->tcp.flags, 824 TCP_OFFLOAD_PARAMS_OPT2_TS_EN, 825 !!(tcp_flags & ECORE_IWARP_TS_EN)); 826 827 SET_FIELD(p_tcp_ramrod->tcp.flags, 828 TCP_OFFLOAD_PARAMS_OPT2_DA_EN, 829 !!(tcp_flags & ECORE_IWARP_DA_EN)); 830 831 p_tcp_ramrod->tcp.ip_version = ep->cm_info.ip_version; 832 833 for (i = 0; i < 4; i++) { 834 p_tcp_ramrod->tcp.remote_ip[i] = 835 OSAL_CPU_TO_LE32(ep->cm_info.remote_ip[i]); 836 p_tcp_ramrod->tcp.local_ip[i] = 837 OSAL_CPU_TO_LE32(ep->cm_info.local_ip[i]); 838 } 839 840 p_tcp_ramrod->tcp.remote_port = 841 OSAL_CPU_TO_LE16(ep->cm_info.remote_port); 842 p_tcp_ramrod->tcp.local_port = OSAL_CPU_TO_LE16(ep->cm_info.local_port); 843 p_tcp_ramrod->tcp.mss = OSAL_CPU_TO_LE16(ep->mss); 844 p_tcp_ramrod->tcp.flow_label = 0; 845 p_tcp_ramrod->tcp.ttl = 0x40; 846 p_tcp_ramrod->tcp.tos_or_tc = 0; 847 848 p_tcp_ramrod->tcp.max_rt_time = ECORE_IWARP_DEF_MAX_RT_TIME; 849 p_tcp_ramrod->tcp.cwnd = ECORE_IWARP_DEF_CWND_FACTOR * p_tcp_ramrod->tcp.mss; 850 p_tcp_ramrod->tcp.ka_max_probe_cnt = ECORE_IWARP_DEF_KA_MAX_PROBE_CNT; 851 p_tcp_ramrod->tcp.ka_timeout = ECORE_IWARP_DEF_KA_TIMEOUT; 852 p_tcp_ramrod->tcp.ka_interval = ECORE_IWARP_DEF_KA_INTERVAL; 853 854 p_tcp_ramrod->tcp.rcv_wnd_scale = 855 (u8)p_hwfn->p_rdma_info->iwarp.rcv_wnd_scale; 856 p_tcp_ramrod->tcp.connect_mode = ep->connect_mode; 857 858 if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 859 p_tcp_ramrod->tcp.syn_ip_payload_length = 860 OSAL_CPU_TO_LE16(ep->syn_ip_payload_length); 861 p_tcp_ramrod->tcp.syn_phy_addr_hi = 862 DMA_HI_LE(ep->syn_phy_addr); 863 p_tcp_ramrod->tcp.syn_phy_addr_lo = 864 DMA_LO_LE(ep->syn_phy_addr); 865 } 866 867 ecore_iwarp_print_tcp_ramrod(p_hwfn, p_tcp_ramrod); 868 869 rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); 870 871 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 872 "EP(0x%x) Offload completed rc=%d\n" , ep->tcp_cid, rc); 873 874 return rc; 875 } 876 877 /* This function should be called after IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE 878 * is received. it will be called from the dpc context. 879 */ 880 static enum _ecore_status_t 881 ecore_iwarp_mpa_offload(struct ecore_hwfn *p_hwfn, 882 struct ecore_iwarp_ep *ep) 883 { 884 struct iwarp_mpa_offload_ramrod_data *p_mpa_ramrod; 885 struct ecore_iwarp_info *iwarp_info; 886 struct ecore_sp_init_data init_data; 887 struct ecore_spq_entry *p_ent; 888 dma_addr_t async_output_phys; 889 dma_addr_t out_pdata_phys; 890 dma_addr_t in_pdata_phys; 891 struct ecore_rdma_qp *qp; 892 bool reject; 893 enum _ecore_status_t rc; 894 895 if (!ep) 896 return ECORE_INVAL; 897 898 qp = ep->qp; 899 reject = (qp == OSAL_NULL); 900 901 OSAL_MEMSET(&init_data, 0, sizeof(init_data)); 902 init_data.cid = reject ? ep->tcp_cid : qp->icid; 903 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 904 905 if (ep->connect_mode == TCP_CONNECT_ACTIVE || !ep->event_cb) 906 init_data.comp_mode = ECORE_SPQ_MODE_CB; 907 else 908 init_data.comp_mode = ECORE_SPQ_MODE_EBLOCK; 909 910 rc = ecore_sp_init_request(p_hwfn, &p_ent, 911 IWARP_RAMROD_CMD_ID_MPA_OFFLOAD, 912 PROTOCOLID_IWARP, &init_data); 913 914 if (rc != ECORE_SUCCESS) 915 return rc; 916 917 p_mpa_ramrod = &p_ent->ramrod.iwarp_mpa_offload; 918 out_pdata_phys = ep->ep_buffer_phys + 919 OFFSETOF(struct ecore_iwarp_ep_memory, out_pdata); 920 p_mpa_ramrod->common.outgoing_ulp_buffer.addr.hi = 921 DMA_HI_LE(out_pdata_phys); 922 p_mpa_ramrod->common.outgoing_ulp_buffer.addr.lo = 923 DMA_LO_LE(out_pdata_phys); 924 p_mpa_ramrod->common.outgoing_ulp_buffer.len = 925 ep->cm_info.private_data_len; 926 p_mpa_ramrod->common.crc_needed = p_hwfn->p_rdma_info->iwarp.crc_needed; 927 928 p_mpa_ramrod->common.out_rq.ord = ep->cm_info.ord; 929 p_mpa_ramrod->common.out_rq.ird = ep->cm_info.ird; 930 931 p_mpa_ramrod->tcp_cid = p_hwfn->hw_info.opaque_fid << 16 | ep->tcp_cid; 932 933 in_pdata_phys = ep->ep_buffer_phys + 934 OFFSETOF(struct ecore_iwarp_ep_memory, in_pdata); 935 p_mpa_ramrod->tcp_connect_side = ep->connect_mode; 936 p_mpa_ramrod->incoming_ulp_buffer.addr.hi = 937 DMA_HI_LE(in_pdata_phys); 938 p_mpa_ramrod->incoming_ulp_buffer.addr.lo = 939 DMA_LO_LE(in_pdata_phys); 940 p_mpa_ramrod->incoming_ulp_buffer.len = 941 OSAL_CPU_TO_LE16(sizeof(ep->ep_buffer_virt->in_pdata)); 942 async_output_phys = ep->ep_buffer_phys + 943 OFFSETOF(struct ecore_iwarp_ep_memory, async_output); 944 p_mpa_ramrod->async_eqe_output_buf.hi = 945 DMA_HI_LE(async_output_phys); 946 p_mpa_ramrod->async_eqe_output_buf.lo = 947 DMA_LO_LE(async_output_phys); 948 p_mpa_ramrod->handle_for_async.hi = OSAL_CPU_TO_LE32(PTR_HI(ep)); 949 p_mpa_ramrod->handle_for_async.lo = OSAL_CPU_TO_LE32(PTR_LO(ep)); 950 951 if (!reject) { 952 p_mpa_ramrod->shared_queue_addr.hi = 953 DMA_HI_LE(qp->shared_queue_phys_addr); 954 p_mpa_ramrod->shared_queue_addr.lo = 955 DMA_LO_LE(qp->shared_queue_phys_addr); 956 957 p_mpa_ramrod->stats_counter_id = 958 RESC_START(p_hwfn, ECORE_RDMA_STATS_QUEUE) + 959 qp->stats_queue; 960 } else { 961 p_mpa_ramrod->common.reject = 1; 962 } 963 964 iwarp_info = &p_hwfn->p_rdma_info->iwarp; 965 p_mpa_ramrod->rcv_wnd = iwarp_info->rcv_wnd_size; 966 p_mpa_ramrod->mode = ep->mpa_rev; 967 SET_FIELD(p_mpa_ramrod->rtr_pref, 968 IWARP_MPA_OFFLOAD_RAMROD_DATA_RTR_SUPPORTED, 969 ep->rtr_type); 970 971 ep->state = ECORE_IWARP_EP_MPA_OFFLOADED; 972 rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); 973 if (!reject) 974 ep->cid = qp->icid; /* Now they're migrated. */ 975 976 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 977 "QP(0x%x) EP(0x%x) MPA Offload rc = %d IRD=0x%x ORD=0x%x rtr_type=%d mpa_rev=%d reject=%d\n", 978 reject ? 0xffff : qp->icid, ep->tcp_cid, rc, ep->cm_info.ird, 979 ep->cm_info.ord, ep->rtr_type, ep->mpa_rev, reject); 980 return rc; 981 } 982 983 static void 984 ecore_iwarp_mpa_received(struct ecore_hwfn *p_hwfn, 985 struct ecore_iwarp_ep *ep) 986 { 987 struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 988 struct ecore_iwarp_cm_event_params params; 989 struct mpa_v2_hdr *mpa_v2_params; 990 union async_output *async_data; 991 u16 mpa_ord, mpa_ird; 992 u8 mpa_hdr_size = 0; 993 u8 mpa_rev; 994 995 async_data = &ep->ep_buffer_virt->async_output; 996 997 mpa_rev = async_data->mpa_request.mpa_handshake_mode; 998 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 999 "private_data_len=%x handshake_mode=%x private_data=(%x)\n", 1000 async_data->mpa_request.ulp_data_len, 1001 mpa_rev, 1002 *((u32 *)((u8 *)ep->ep_buffer_virt->in_pdata))); 1003 1004 if (ep->listener->state > ECORE_IWARP_LISTENER_STATE_UNPAUSE) { 1005 /* MPA reject initiated by ecore */ 1006 OSAL_MEMSET(&ep->cm_info, 0, sizeof(ep->cm_info)); 1007 ep->event_cb = OSAL_NULL; 1008 ecore_iwarp_mpa_offload(p_hwfn, ep); 1009 return; 1010 } 1011 1012 if (mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) { 1013 if (iwarp_info->mpa_rev == MPA_NEGOTIATION_TYPE_BASIC) { 1014 DP_ERR(p_hwfn, "MPA_NEGOTIATE Received MPA rev 2 on driver supporting only MPA rev 1\n"); 1015 /* MPA_REV2 ToDo: close the tcp connection. */ 1016 return; 1017 } 1018 1019 /* Read ord/ird values from private data buffer */ 1020 mpa_v2_params = 1021 (struct mpa_v2_hdr *)(ep->ep_buffer_virt->in_pdata); 1022 mpa_hdr_size = sizeof(*mpa_v2_params); 1023 1024 mpa_ord = ntohs(mpa_v2_params->ord); 1025 mpa_ird = ntohs(mpa_v2_params->ird); 1026 1027 /* Temprary store in cm_info incoming ord/ird requested, later 1028 * replace with negotiated value during accept 1029 */ 1030 ep->cm_info.ord = (u8)OSAL_MIN_T(u16, 1031 (mpa_ord & MPA_V2_IRD_ORD_MASK), 1032 ECORE_IWARP_ORD_DEFAULT); 1033 1034 ep->cm_info.ird = (u8)OSAL_MIN_T(u16, 1035 (mpa_ird & MPA_V2_IRD_ORD_MASK), 1036 ECORE_IWARP_IRD_DEFAULT); 1037 1038 /* Peer2Peer negotiation */ 1039 ep->rtr_type = MPA_RTR_TYPE_NONE; 1040 if (mpa_ird & MPA_V2_PEER2PEER_MODEL) { 1041 if (mpa_ord & MPA_V2_WRITE_RTR) 1042 ep->rtr_type |= MPA_RTR_TYPE_ZERO_WRITE; 1043 1044 if (mpa_ord & MPA_V2_READ_RTR) 1045 ep->rtr_type |= MPA_RTR_TYPE_ZERO_READ; 1046 1047 if (mpa_ird & MPA_V2_SEND_RTR) 1048 ep->rtr_type |= MPA_RTR_TYPE_ZERO_SEND; 1049 1050 ep->rtr_type &= iwarp_info->rtr_type; 1051 /* if we're left with no match send our capabilities */ 1052 if (ep->rtr_type == MPA_RTR_TYPE_NONE) 1053 ep->rtr_type = iwarp_info->rtr_type; 1054 1055 /* prioritize write over send and read */ 1056 if (ep->rtr_type & MPA_RTR_TYPE_ZERO_WRITE) 1057 ep->rtr_type = MPA_RTR_TYPE_ZERO_WRITE; 1058 } 1059 1060 ep->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED; 1061 } else { 1062 ep->cm_info.ord = ECORE_IWARP_ORD_DEFAULT; 1063 ep->cm_info.ird = ECORE_IWARP_IRD_DEFAULT; 1064 ep->mpa_rev = MPA_NEGOTIATION_TYPE_BASIC; 1065 } 1066 1067 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1068 "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x rtr:0x%x ulp_data_len = %x mpa_hdr_size = %x\n", 1069 mpa_rev, ep->cm_info.ord, ep->cm_info.ird, ep->rtr_type, 1070 async_data->mpa_request.ulp_data_len, 1071 mpa_hdr_size); 1072 1073 /* Strip mpa v2 hdr from private data before sending to upper layer */ 1074 ep->cm_info.private_data = 1075 ep->ep_buffer_virt->in_pdata + mpa_hdr_size; 1076 1077 ep->cm_info.private_data_len = 1078 async_data->mpa_request.ulp_data_len - mpa_hdr_size; 1079 1080 params.event = ECORE_IWARP_EVENT_MPA_REQUEST; 1081 params.cm_info = &ep->cm_info; 1082 params.ep_context = ep; 1083 params.status = ECORE_SUCCESS; 1084 1085 ep->state = ECORE_IWARP_EP_MPA_REQ_RCVD; 1086 ep->event_cb(ep->cb_context, ¶ms); 1087 } 1088 1089 static void 1090 ecore_iwarp_move_to_ep_list(struct ecore_hwfn *p_hwfn, 1091 osal_list_t *list, struct ecore_iwarp_ep *ep) 1092 { 1093 OSAL_SPIN_LOCK(&ep->listener->lock); 1094 OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, &ep->listener->ep_list); 1095 OSAL_SPIN_UNLOCK(&ep->listener->lock); 1096 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1097 OSAL_LIST_PUSH_TAIL(&ep->list_entry, list); 1098 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1099 } 1100 1101 static void 1102 ecore_iwarp_return_ep(struct ecore_hwfn *p_hwfn, 1103 struct ecore_iwarp_ep *ep) 1104 { 1105 ep->state = ECORE_IWARP_EP_INIT; 1106 if (ep->qp) 1107 ep->qp->ep = OSAL_NULL; 1108 ep->qp = OSAL_NULL; 1109 OSAL_MEMSET(&ep->cm_info, 0, sizeof(ep->cm_info)); 1110 1111 if (ep->tcp_cid == ECORE_IWARP_INVALID_TCP_CID) { 1112 /* We don't care about the return code, it's ok if tcp_cid 1113 * remains invalid...in this case we'll defer allocation 1114 */ 1115 ecore_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid); 1116 } 1117 1118 ecore_iwarp_move_to_ep_list(p_hwfn, 1119 &p_hwfn->p_rdma_info->iwarp.ep_free_list, 1120 ep); 1121 } 1122 1123 static void 1124 ecore_iwarp_parse_private_data(struct ecore_hwfn *p_hwfn, 1125 struct ecore_iwarp_ep *ep) 1126 { 1127 struct mpa_v2_hdr *mpa_v2_params; 1128 union async_output *async_data; 1129 u16 mpa_ird, mpa_ord; 1130 u8 mpa_data_size = 0; 1131 1132 if (MPA_REV2(p_hwfn->p_rdma_info->iwarp.mpa_rev)) { 1133 mpa_v2_params = (struct mpa_v2_hdr *) 1134 ((u8 *)ep->ep_buffer_virt->in_pdata); 1135 mpa_data_size = sizeof(*mpa_v2_params); 1136 mpa_ird = ntohs(mpa_v2_params->ird); 1137 mpa_ord = ntohs(mpa_v2_params->ord); 1138 1139 ep->cm_info.ird = (u8)(mpa_ord & MPA_V2_IRD_ORD_MASK); 1140 ep->cm_info.ord = (u8)(mpa_ird & MPA_V2_IRD_ORD_MASK); 1141 } /* else: Ord / Ird already configured */ 1142 1143 async_data = &ep->ep_buffer_virt->async_output; 1144 1145 ep->cm_info.private_data = ep->ep_buffer_virt->in_pdata + mpa_data_size; 1146 ep->cm_info.private_data_len = 1147 async_data->mpa_response.ulp_data_len - mpa_data_size; 1148 } 1149 1150 static void 1151 ecore_iwarp_mpa_reply_arrived(struct ecore_hwfn *p_hwfn, 1152 struct ecore_iwarp_ep *ep) 1153 { 1154 struct ecore_iwarp_cm_event_params params; 1155 1156 if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 1157 DP_NOTICE(p_hwfn, true, "MPA reply event not expected on passive side!\n"); 1158 return; 1159 } 1160 1161 params.event = ECORE_IWARP_EVENT_ACTIVE_MPA_REPLY; 1162 1163 ecore_iwarp_parse_private_data(p_hwfn, ep); 1164 1165 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1166 "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n", 1167 ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird); 1168 1169 params.cm_info = &ep->cm_info; 1170 params.ep_context = ep; 1171 params.status = ECORE_SUCCESS; 1172 1173 ep->mpa_reply_processed = true; 1174 1175 ep->event_cb(ep->cb_context, ¶ms); 1176 } 1177 1178 #define ECORE_IWARP_CONNECT_MODE_STRING(ep) \ 1179 (ep->connect_mode == TCP_CONNECT_PASSIVE) ? "Passive" : "Active" 1180 1181 /* Called as a result of the event: 1182 * IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE 1183 */ 1184 static void 1185 ecore_iwarp_mpa_complete(struct ecore_hwfn *p_hwfn, 1186 struct ecore_iwarp_ep *ep, 1187 u8 fw_return_code) 1188 { 1189 struct ecore_iwarp_cm_event_params params; 1190 1191 if (ep->connect_mode == TCP_CONNECT_ACTIVE) 1192 params.event = ECORE_IWARP_EVENT_ACTIVE_COMPLETE; 1193 else 1194 params.event = ECORE_IWARP_EVENT_PASSIVE_COMPLETE; 1195 1196 if (ep->connect_mode == TCP_CONNECT_ACTIVE && 1197 !ep->mpa_reply_processed) { 1198 ecore_iwarp_parse_private_data(p_hwfn, ep); 1199 } 1200 1201 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1202 "MPA_NEGOTIATE (v%d): ORD: 0x%x IRD: 0x%x\n", 1203 ep->mpa_rev, ep->cm_info.ord, ep->cm_info.ird); 1204 1205 params.cm_info = &ep->cm_info; 1206 1207 params.ep_context = ep; 1208 1209 if ((ep->connect_mode == TCP_CONNECT_PASSIVE) && 1210 (ep->state != ECORE_IWARP_EP_MPA_OFFLOADED)) { 1211 /* This is a FW bug. Shouldn't get complete without offload */ 1212 DP_NOTICE(p_hwfn, false, "%s(0x%x) ERROR: Got MPA complete without MPA offload fw_return_code=%d ep->state=%d\n", 1213 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid, 1214 fw_return_code, ep->state); 1215 ep->state = ECORE_IWARP_EP_CLOSED; 1216 return; 1217 } 1218 1219 if ((ep->connect_mode == TCP_CONNECT_PASSIVE) && 1220 (ep->state == ECORE_IWARP_EP_ABORTING)) 1221 return; 1222 1223 ep->state = ECORE_IWARP_EP_CLOSED; 1224 1225 switch (fw_return_code) { 1226 case RDMA_RETURN_OK: 1227 ep->qp->max_rd_atomic_req = ep->cm_info.ord; 1228 ep->qp->max_rd_atomic_resp = ep->cm_info.ird; 1229 ecore_iwarp_modify_qp(p_hwfn, ep->qp, 1230 ECORE_IWARP_QP_STATE_RTS, 1231 1); 1232 ep->state = ECORE_IWARP_EP_ESTABLISHED; 1233 params.status = ECORE_SUCCESS; 1234 break; 1235 case IWARP_CONN_ERROR_MPA_TIMEOUT: 1236 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA timeout\n", 1237 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 1238 params.status = ECORE_TIMEOUT; 1239 break; 1240 case IWARP_CONN_ERROR_MPA_ERROR_REJECT: 1241 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA Reject\n", 1242 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 1243 params.status = ECORE_CONN_REFUSED; 1244 break; 1245 case IWARP_CONN_ERROR_MPA_RST: 1246 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA reset(tcp cid: 0x%x)\n", 1247 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid, 1248 ep->tcp_cid); 1249 params.status = ECORE_CONN_RESET; 1250 break; 1251 case IWARP_CONN_ERROR_MPA_FIN: 1252 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA received FIN\n", 1253 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 1254 params.status = ECORE_CONN_REFUSED; 1255 break; 1256 case IWARP_CONN_ERROR_MPA_INSUF_IRD: 1257 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA insufficient ird\n", 1258 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 1259 params.status = ECORE_CONN_REFUSED; 1260 break; 1261 case IWARP_CONN_ERROR_MPA_RTR_MISMATCH: 1262 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA RTR MISMATCH\n", 1263 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 1264 params.status = ECORE_CONN_REFUSED; 1265 break; 1266 case IWARP_CONN_ERROR_MPA_INVALID_PACKET: 1267 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA Invalid Packet\n", 1268 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 1269 params.status = ECORE_CONN_REFUSED; 1270 break; 1271 case IWARP_CONN_ERROR_MPA_LOCAL_ERROR: 1272 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA Local Error\n", 1273 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 1274 params.status = ECORE_CONN_REFUSED; 1275 break; 1276 case IWARP_CONN_ERROR_MPA_TERMINATE: 1277 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA TERMINATE\n", 1278 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->cid); 1279 params.status = ECORE_CONN_REFUSED; 1280 break; 1281 default: 1282 params.status = ECORE_CONN_RESET; 1283 break; 1284 } 1285 1286 if (ep->event_cb) 1287 ep->event_cb(ep->cb_context, ¶ms); 1288 1289 /* on passive side, if there is no associated QP (REJECT) we need to 1290 * return the ep to the pool, otherwise we wait for QP to release it. 1291 * Since we add an element in accept instead of this one. in anycase 1292 * we need to remove it from the ep_list (active connections)... 1293 */ 1294 if (fw_return_code != RDMA_RETURN_OK) { 1295 ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; 1296 if ((ep->connect_mode == TCP_CONNECT_PASSIVE) && 1297 (ep->qp == OSAL_NULL)) { /* Rejected */ 1298 ecore_iwarp_return_ep(p_hwfn, ep); 1299 } else { 1300 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1301 OSAL_LIST_REMOVE_ENTRY( 1302 &ep->list_entry, 1303 &p_hwfn->p_rdma_info->iwarp.ep_list); 1304 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1305 } 1306 } 1307 } 1308 1309 static void 1310 ecore_iwarp_mpa_v2_set_private(struct ecore_hwfn *p_hwfn, 1311 struct ecore_iwarp_ep *ep, 1312 u8 *mpa_data_size) 1313 { 1314 struct mpa_v2_hdr *mpa_v2_params; 1315 u16 mpa_ird, mpa_ord; 1316 1317 *mpa_data_size = 0; 1318 if (MPA_REV2(ep->mpa_rev)) { 1319 mpa_v2_params = 1320 (struct mpa_v2_hdr *)ep->ep_buffer_virt->out_pdata; 1321 *mpa_data_size = sizeof(*mpa_v2_params); 1322 1323 mpa_ird = (u16)ep->cm_info.ird; 1324 mpa_ord = (u16)ep->cm_info.ord; 1325 1326 if (ep->rtr_type != MPA_RTR_TYPE_NONE) { 1327 mpa_ird |= MPA_V2_PEER2PEER_MODEL; 1328 1329 if (ep->rtr_type & MPA_RTR_TYPE_ZERO_SEND) 1330 mpa_ird |= MPA_V2_SEND_RTR; 1331 1332 if (ep->rtr_type & MPA_RTR_TYPE_ZERO_WRITE) 1333 mpa_ord |= MPA_V2_WRITE_RTR; 1334 1335 if (ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) 1336 mpa_ord |= MPA_V2_READ_RTR; 1337 } 1338 1339 mpa_v2_params->ird = htons(mpa_ird); 1340 mpa_v2_params->ord = htons(mpa_ord); 1341 1342 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1343 "MPA_NEGOTIATE Header: [%x ord:%x ird] %x ord:%x ird:%x peer2peer:%x rtr_send:%x rtr_write:%x rtr_read:%x\n", 1344 mpa_v2_params->ird, 1345 mpa_v2_params->ord, 1346 *((u32 *)mpa_v2_params), 1347 mpa_ord & MPA_V2_IRD_ORD_MASK, 1348 mpa_ird & MPA_V2_IRD_ORD_MASK, 1349 !!(mpa_ird & MPA_V2_PEER2PEER_MODEL), 1350 !!(mpa_ird & MPA_V2_SEND_RTR), 1351 !!(mpa_ord & MPA_V2_WRITE_RTR), 1352 !!(mpa_ord & MPA_V2_READ_RTR)); 1353 } 1354 } 1355 1356 enum _ecore_status_t 1357 ecore_iwarp_connect(void *rdma_cxt, 1358 struct ecore_iwarp_connect_in *iparams, 1359 struct ecore_iwarp_connect_out *oparams) 1360 { 1361 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; 1362 struct ecore_iwarp_info *iwarp_info; 1363 struct ecore_iwarp_ep *ep; 1364 enum _ecore_status_t rc; 1365 u8 mpa_data_size = 0; 1366 u8 ts_hdr_size = 0; 1367 u32 cid; 1368 1369 if ((iparams->cm_info.ord > ECORE_IWARP_ORD_DEFAULT) || 1370 (iparams->cm_info.ird > ECORE_IWARP_IRD_DEFAULT)) { 1371 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1372 "QP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n", 1373 iparams->qp->icid, iparams->cm_info.ord, 1374 iparams->cm_info.ird); 1375 1376 return ECORE_INVAL; 1377 } 1378 1379 iwarp_info = &p_hwfn->p_rdma_info->iwarp; 1380 1381 /* Allocate ep object */ 1382 rc = ecore_iwarp_alloc_cid(p_hwfn, &cid); 1383 if (rc != ECORE_SUCCESS) 1384 return rc; 1385 1386 if (iparams->qp->ep == OSAL_NULL) { 1387 rc = ecore_iwarp_create_ep(p_hwfn, &ep); 1388 if (rc != ECORE_SUCCESS) 1389 return rc; 1390 } else { 1391 ep = iparams->qp->ep; 1392 DP_ERR(p_hwfn, "Note re-use of QP for different connect\n"); 1393 ep->state = ECORE_IWARP_EP_INIT; 1394 } 1395 1396 ep->tcp_cid = cid; 1397 1398 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1399 OSAL_LIST_PUSH_TAIL(&ep->list_entry, 1400 &p_hwfn->p_rdma_info->iwarp.ep_list); 1401 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1402 1403 ep->qp = iparams->qp; 1404 ep->qp->ep = ep; 1405 OSAL_MEMCPY(ep->remote_mac_addr, 1406 iparams->remote_mac_addr, 1407 ETH_ALEN); 1408 OSAL_MEMCPY(ep->local_mac_addr, 1409 iparams->local_mac_addr, 1410 ETH_ALEN); 1411 OSAL_MEMCPY(&ep->cm_info, &iparams->cm_info, sizeof(ep->cm_info)); 1412 1413 ep->cm_info.ord = iparams->cm_info.ord; 1414 ep->cm_info.ird = iparams->cm_info.ird; 1415 1416 ep->rtr_type = iwarp_info->rtr_type; 1417 if (iwarp_info->peer2peer == 0) 1418 ep->rtr_type = MPA_RTR_TYPE_NONE; 1419 1420 if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) && 1421 (ep->cm_info.ord == 0)) 1422 ep->cm_info.ord = 1; 1423 1424 ep->mpa_rev = iwarp_info->mpa_rev; 1425 1426 ecore_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); 1427 1428 ep->cm_info.private_data = (u8 *)ep->ep_buffer_virt->out_pdata; 1429 ep->cm_info.private_data_len = 1430 iparams->cm_info.private_data_len + mpa_data_size; 1431 1432 OSAL_MEMCPY((u8 *)(u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, 1433 iparams->cm_info.private_data, 1434 iparams->cm_info.private_data_len); 1435 1436 if (p_hwfn->p_rdma_info->iwarp.tcp_flags & ECORE_IWARP_TS_EN) 1437 ts_hdr_size = TIMESTAMP_HEADER_SIZE; 1438 1439 ep->mss = iparams->mss - ts_hdr_size; 1440 ep->mss = OSAL_MIN_T(u16, ECORE_IWARP_MAX_FW_MSS, ep->mss); 1441 1442 ep->event_cb = iparams->event_cb; 1443 ep->cb_context = iparams->cb_context; 1444 ep->connect_mode = TCP_CONNECT_ACTIVE; 1445 1446 oparams->ep_context = ep; 1447 1448 rc = ecore_iwarp_tcp_offload(p_hwfn, ep); 1449 1450 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) EP(0x%x) rc = %d\n", 1451 iparams->qp->icid, ep->tcp_cid, rc); 1452 1453 if (rc != ECORE_SUCCESS) 1454 ecore_iwarp_destroy_ep(p_hwfn, ep, true); 1455 1456 return rc; 1457 } 1458 1459 static struct ecore_iwarp_ep * 1460 ecore_iwarp_get_free_ep(struct ecore_hwfn *p_hwfn) 1461 { 1462 struct ecore_iwarp_ep *ep = OSAL_NULL; 1463 enum _ecore_status_t rc; 1464 1465 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1466 1467 if (OSAL_LIST_IS_EMPTY(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) { 1468 DP_ERR(p_hwfn, "Ep list is empty\n"); 1469 goto out; 1470 } 1471 1472 ep = OSAL_LIST_FIRST_ENTRY(&p_hwfn->p_rdma_info->iwarp.ep_free_list, 1473 struct ecore_iwarp_ep, 1474 list_entry); 1475 1476 /* in some cases we could have failed allocating a tcp cid when added 1477 * from accept / failure... retry now..this is not the common case. 1478 */ 1479 if (ep->tcp_cid == ECORE_IWARP_INVALID_TCP_CID) { 1480 rc = ecore_iwarp_alloc_tcp_cid(p_hwfn, &ep->tcp_cid); 1481 /* if we fail we could look for another entry with a valid 1482 * tcp_cid, but since we don't expect to reach this anyway 1483 * it's not worth the handling 1484 */ 1485 if (rc) { 1486 ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; 1487 ep = OSAL_NULL; 1488 goto out; 1489 } 1490 } 1491 1492 OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, 1493 &p_hwfn->p_rdma_info->iwarp.ep_free_list); 1494 1495 out: 1496 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1497 return ep; 1498 } 1499 1500 /* takes into account timer scan ~20 ms and interrupt/dpc overhead */ 1501 #define ECORE_IWARP_MAX_CID_CLEAN_TIME 100 1502 /* Technically we shouldn't reach this count with 100 ms iteration sleep */ 1503 #define ECORE_IWARP_MAX_NO_PROGRESS_CNT 5 1504 1505 /* This function waits for all the bits of a bmap to be cleared, as long as 1506 * there is progress ( i.e. the number of bits left to be cleared decreases ) 1507 * the function continues. 1508 */ 1509 static enum _ecore_status_t 1510 ecore_iwarp_wait_cid_map_cleared(struct ecore_hwfn *p_hwfn, 1511 struct ecore_bmap *bmap) 1512 { 1513 int prev_weight = 0; 1514 int wait_count = 0; 1515 int weight = 0; 1516 1517 weight = OSAL_BITMAP_WEIGHT(bmap->bitmap, bmap->max_count); 1518 prev_weight = weight; 1519 1520 while (weight) { 1521 OSAL_MSLEEP(ECORE_IWARP_MAX_CID_CLEAN_TIME); 1522 1523 weight = OSAL_BITMAP_WEIGHT(bmap->bitmap, bmap->max_count); 1524 1525 if (prev_weight == weight) { 1526 wait_count++; 1527 } else { 1528 prev_weight = weight; 1529 wait_count = 0; 1530 } 1531 1532 if (wait_count > ECORE_IWARP_MAX_NO_PROGRESS_CNT) { 1533 DP_NOTICE(p_hwfn, false, 1534 "%s bitmap wait timed out (%d cids pending)\n", 1535 bmap->name, weight); 1536 return ECORE_TIMEOUT; 1537 } 1538 } 1539 return ECORE_SUCCESS; 1540 } 1541 1542 static enum _ecore_status_t 1543 ecore_iwarp_wait_for_all_cids(struct ecore_hwfn *p_hwfn) 1544 { 1545 enum _ecore_status_t rc; 1546 int i; 1547 1548 rc = ecore_iwarp_wait_cid_map_cleared( 1549 p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map); 1550 if (rc) 1551 return rc; 1552 1553 /* Now free the tcp cids from the main cid map */ 1554 for (i = 0; i < ECORE_IWARP_PREALLOC_CNT; i++) { 1555 ecore_bmap_release_id(p_hwfn, 1556 &p_hwfn->p_rdma_info->cid_map, 1557 i); 1558 } 1559 1560 /* Now wait for all cids to be completed */ 1561 rc = ecore_iwarp_wait_cid_map_cleared( 1562 p_hwfn, &p_hwfn->p_rdma_info->cid_map); 1563 1564 return rc; 1565 } 1566 1567 static void 1568 ecore_iwarp_free_prealloc_ep(struct ecore_hwfn *p_hwfn) 1569 { 1570 struct ecore_iwarp_ep *ep; 1571 u32 cid; 1572 1573 while (!OSAL_LIST_IS_EMPTY(&p_hwfn->p_rdma_info->iwarp.ep_free_list)) { 1574 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1575 1576 ep = OSAL_LIST_FIRST_ENTRY( 1577 &p_hwfn->p_rdma_info->iwarp.ep_free_list, 1578 struct ecore_iwarp_ep, list_entry); 1579 1580 if (ep == OSAL_NULL) { 1581 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1582 break; 1583 } 1584 1585 #ifdef _NTDDK_ 1586 #pragma warning(suppress : 6011) 1587 #endif 1588 OSAL_LIST_REMOVE_ENTRY( 1589 &ep->list_entry, 1590 &p_hwfn->p_rdma_info->iwarp.ep_free_list); 1591 1592 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1593 1594 if (ep->tcp_cid != ECORE_IWARP_INVALID_TCP_CID) { 1595 cid = ep->tcp_cid - ecore_cxt_get_proto_cid_start( 1596 p_hwfn, p_hwfn->p_rdma_info->proto); 1597 1598 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->lock); 1599 1600 ecore_bmap_release_id(p_hwfn, 1601 &p_hwfn->p_rdma_info->tcp_cid_map, 1602 cid); 1603 1604 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->lock); 1605 } 1606 1607 ecore_iwarp_destroy_ep(p_hwfn, ep, false); 1608 } 1609 } 1610 1611 static enum _ecore_status_t 1612 ecore_iwarp_prealloc_ep(struct ecore_hwfn *p_hwfn, bool init) 1613 { 1614 struct ecore_iwarp_ep *ep; 1615 int rc = ECORE_SUCCESS; 1616 u32 cid; 1617 int count; 1618 int i; 1619 1620 if (init) 1621 count = ECORE_IWARP_PREALLOC_CNT; 1622 else 1623 count = 1; 1624 1625 for (i = 0; i < count; i++) { 1626 rc = ecore_iwarp_create_ep(p_hwfn, &ep); 1627 if (rc != ECORE_SUCCESS) 1628 return rc; 1629 1630 /* During initialization we allocate from the main pool, 1631 * afterwards we allocate only from the tcp_cid. 1632 */ 1633 if (init) { 1634 rc = ecore_iwarp_alloc_cid(p_hwfn, &cid); 1635 if (rc != ECORE_SUCCESS) 1636 goto err; 1637 ecore_iwarp_set_tcp_cid(p_hwfn, cid); 1638 } else { 1639 /* We don't care about the return code, it's ok if 1640 * tcp_cid remains invalid...in this case we'll 1641 * defer allocation 1642 */ 1643 ecore_iwarp_alloc_tcp_cid(p_hwfn, &cid); 1644 } 1645 1646 ep->tcp_cid = cid; 1647 1648 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1649 OSAL_LIST_PUSH_TAIL(&ep->list_entry, 1650 &p_hwfn->p_rdma_info->iwarp.ep_free_list); 1651 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1652 } 1653 1654 return rc; 1655 1656 err: 1657 ecore_iwarp_destroy_ep(p_hwfn, ep, false); 1658 1659 return rc; 1660 } 1661 1662 enum _ecore_status_t 1663 ecore_iwarp_alloc(struct ecore_hwfn *p_hwfn) 1664 { 1665 enum _ecore_status_t rc; 1666 1667 #ifdef CONFIG_ECORE_LOCK_ALLOC 1668 OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_hwfn->p_rdma_info->iwarp.iw_lock); 1669 OSAL_SPIN_LOCK_ALLOC(p_hwfn, &p_hwfn->p_rdma_info->iwarp.qp_lock); 1670 #endif 1671 OSAL_SPIN_LOCK_INIT(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1672 OSAL_SPIN_LOCK_INIT(&p_hwfn->p_rdma_info->iwarp.qp_lock); 1673 1674 /* Allocate bitmap for tcp cid. These are used by passive side 1675 * to ensure it can allocate a tcp cid during dpc that was 1676 * pre-acquired and doesn't require dynamic allocation of ilt 1677 */ 1678 rc = ecore_rdma_bmap_alloc(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 1679 ECORE_IWARP_PREALLOC_CNT, 1680 "TCP_CID"); 1681 if (rc != ECORE_SUCCESS) { 1682 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1683 "Failed to allocate tcp cid, rc = %d\n", 1684 rc); 1685 return rc; 1686 } 1687 1688 OSAL_LIST_INIT(&p_hwfn->p_rdma_info->iwarp.ep_free_list); 1689 //DAVIDS OSAL_SPIN_LOCK_INIT(&p_hwfn->p_rdma_info->iwarp.iw_lock); 1690 rc = ecore_iwarp_prealloc_ep(p_hwfn, true); 1691 if (rc != ECORE_SUCCESS) { 1692 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1693 "ecore_iwarp_prealloc_ep failed, rc = %d\n", 1694 rc); 1695 return rc; 1696 } 1697 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1698 "ecore_iwarp_prealloc_ep success, rc = %d\n", 1699 rc); 1700 1701 return ecore_ooo_alloc(p_hwfn); 1702 } 1703 1704 void 1705 ecore_iwarp_resc_free(struct ecore_hwfn *p_hwfn) 1706 { 1707 struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 1708 1709 #ifdef CONFIG_ECORE_LOCK_ALLOC 1710 OSAL_SPIN_LOCK_DEALLOC(iwarp_info->iw_lock); 1711 OSAL_SPIN_LOCK_DEALLOC(iwarp_info->qp_lock); 1712 #endif 1713 ecore_ooo_free(p_hwfn); 1714 if (iwarp_info->partial_fpdus) 1715 OSAL_FREE(p_hwfn->p_dev, iwarp_info->partial_fpdus); 1716 if (iwarp_info->mpa_bufs) 1717 OSAL_FREE(p_hwfn->p_dev, iwarp_info->mpa_bufs); 1718 if (iwarp_info->mpa_intermediate_buf) 1719 OSAL_FREE(p_hwfn->p_dev, iwarp_info->mpa_intermediate_buf); 1720 1721 ecore_rdma_bmap_free(p_hwfn, &p_hwfn->p_rdma_info->tcp_cid_map, 1); 1722 } 1723 1724 enum _ecore_status_t 1725 ecore_iwarp_accept(void *rdma_cxt, 1726 struct ecore_iwarp_accept_in *iparams) 1727 { 1728 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; 1729 struct ecore_iwarp_ep *ep; 1730 u8 mpa_data_size = 0; 1731 enum _ecore_status_t rc; 1732 1733 ep = (struct ecore_iwarp_ep *)iparams->ep_context; 1734 if (!ep) { 1735 DP_ERR(p_hwfn, "Ep Context receive in accept is NULL\n"); 1736 return ECORE_INVAL; 1737 } 1738 1739 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) EP(0x%x)\n", 1740 iparams->qp->icid, ep->tcp_cid); 1741 1742 if ((iparams->ord > ECORE_IWARP_ORD_DEFAULT) || 1743 (iparams->ird > ECORE_IWARP_IRD_DEFAULT)) { 1744 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1745 "QP(0x%x) EP(0x%x) ERROR: Invalid ord(0x%x)/ird(0x%x)\n", 1746 iparams->qp->icid, ep->tcp_cid, 1747 iparams->ord, iparams->ord); 1748 return ECORE_INVAL; 1749 } 1750 1751 /* We could reach qp->ep != OSAL NULL if we do accept on the same qp */ 1752 if (iparams->qp->ep == OSAL_NULL) { 1753 /* We need to add a replacement for the ep to the free list */ 1754 ecore_iwarp_prealloc_ep(p_hwfn, false); 1755 } else { 1756 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 1757 "Note re-use of QP for different connect\n"); 1758 /* Return the old ep to the free_pool */ 1759 ecore_iwarp_return_ep(p_hwfn, iparams->qp->ep); 1760 } 1761 1762 ecore_iwarp_move_to_ep_list(p_hwfn, 1763 &p_hwfn->p_rdma_info->iwarp.ep_list, 1764 ep); 1765 ep->listener = OSAL_NULL; 1766 ep->cb_context = iparams->cb_context; 1767 ep->qp = iparams->qp; 1768 ep->qp->ep = ep; 1769 1770 if (ep->mpa_rev == MPA_NEGOTIATION_TYPE_ENHANCED) { 1771 /* Negotiate ord/ird: if upperlayer requested ord larger than 1772 * ird advertised by remote, we need to decrease our ord 1773 * to match remote ord 1774 */ 1775 if (iparams->ord > ep->cm_info.ird) { 1776 iparams->ord = ep->cm_info.ird; 1777 } 1778 1779 /* For chelsio compatability, if rtr_zero read is requested 1780 * we can't set ird to zero 1781 */ 1782 if ((ep->rtr_type & MPA_RTR_TYPE_ZERO_READ) && 1783 (iparams->ird == 0)) 1784 iparams->ird = 1; 1785 } 1786 1787 /* Update cm_info ord/ird to be negotiated values */ 1788 ep->cm_info.ord = iparams->ord; 1789 ep->cm_info.ird = iparams->ird; 1790 1791 ecore_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); 1792 1793 ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata; 1794 ep->cm_info.private_data_len = 1795 iparams->private_data_len + mpa_data_size; 1796 1797 OSAL_MEMCPY((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, 1798 iparams->private_data, 1799 iparams->private_data_len); 1800 1801 if (ep->state == ECORE_IWARP_EP_CLOSED) { 1802 DP_NOTICE(p_hwfn, false, 1803 "(0x%x) Accept called on EP in CLOSED state\n", 1804 ep->tcp_cid); 1805 ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; 1806 ecore_iwarp_return_ep(p_hwfn, ep); 1807 return ECORE_CONN_RESET; 1808 } 1809 1810 rc = ecore_iwarp_mpa_offload(p_hwfn, ep); 1811 if (rc) { 1812 ecore_iwarp_modify_qp(p_hwfn, 1813 iparams->qp, 1814 ECORE_IWARP_QP_STATE_ERROR, 1815 1); 1816 } 1817 1818 return rc; 1819 } 1820 1821 enum _ecore_status_t 1822 ecore_iwarp_reject(void *rdma_cxt, 1823 struct ecore_iwarp_reject_in *iparams) 1824 { 1825 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; 1826 struct ecore_iwarp_ep *ep; 1827 u8 mpa_data_size = 0; 1828 enum _ecore_status_t rc; 1829 1830 ep = (struct ecore_iwarp_ep *)iparams->ep_context; 1831 if (!ep) { 1832 DP_ERR(p_hwfn, "Ep Context receive in reject is NULL\n"); 1833 return ECORE_INVAL; 1834 } 1835 1836 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "EP(0x%x)\n", ep->tcp_cid); 1837 1838 ep->cb_context = iparams->cb_context; 1839 ep->qp = OSAL_NULL; 1840 1841 ecore_iwarp_mpa_v2_set_private(p_hwfn, ep, &mpa_data_size); 1842 1843 ep->cm_info.private_data = ep->ep_buffer_virt->out_pdata; 1844 ep->cm_info.private_data_len = 1845 iparams->private_data_len + mpa_data_size; 1846 1847 OSAL_MEMCPY((u8 *)ep->ep_buffer_virt->out_pdata + mpa_data_size, 1848 iparams->private_data, 1849 iparams->private_data_len); 1850 1851 if (ep->state == ECORE_IWARP_EP_CLOSED) { 1852 DP_NOTICE(p_hwfn, false, 1853 "(0x%x) Reject called on EP in CLOSED state\n", 1854 ep->tcp_cid); 1855 ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; 1856 ecore_iwarp_return_ep(p_hwfn, ep); 1857 return ECORE_CONN_RESET; 1858 } 1859 1860 rc = ecore_iwarp_mpa_offload(p_hwfn, ep); 1861 return rc; 1862 } 1863 1864 static void 1865 ecore_iwarp_print_cm_info(struct ecore_hwfn *p_hwfn, 1866 struct ecore_iwarp_cm_info *cm_info) 1867 { 1868 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ip_version = %d\n", 1869 cm_info->ip_version); 1870 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_ip %x.%x.%x.%x\n", 1871 cm_info->remote_ip[0], 1872 cm_info->remote_ip[1], 1873 cm_info->remote_ip[2], 1874 cm_info->remote_ip[3]); 1875 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_ip %x.%x.%x.%x\n", 1876 cm_info->local_ip[0], 1877 cm_info->local_ip[1], 1878 cm_info->local_ip[2], 1879 cm_info->local_ip[3]); 1880 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "remote_port = %x\n", 1881 cm_info->remote_port); 1882 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "local_port = %x\n", 1883 cm_info->local_port); 1884 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "vlan = %x\n", 1885 cm_info->vlan); 1886 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "private_data_len = %x\n", 1887 cm_info->private_data_len); 1888 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ord = %d\n", 1889 cm_info->ord); 1890 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ird = %d\n", 1891 cm_info->ird); 1892 } 1893 1894 static int 1895 ecore_iwarp_ll2_post_rx(struct ecore_hwfn *p_hwfn, 1896 struct ecore_iwarp_ll2_buff *buf, 1897 u8 handle) 1898 { 1899 enum _ecore_status_t rc; 1900 1901 rc = ecore_ll2_post_rx_buffer( 1902 p_hwfn, 1903 handle, 1904 buf->data_phys_addr, 1905 (u16)buf->buff_size, 1906 buf, 1); 1907 1908 if (rc) { 1909 DP_NOTICE(p_hwfn, false, 1910 "Failed to repost rx buffer to ll2 rc = %d, handle=%d\n", 1911 rc, handle); 1912 OSAL_DMA_FREE_COHERENT( 1913 p_hwfn->p_dev, 1914 buf->data, 1915 buf->data_phys_addr, 1916 buf->buff_size); 1917 OSAL_FREE(p_hwfn->p_dev, buf); 1918 } 1919 1920 return rc; 1921 } 1922 1923 static bool 1924 ecore_iwarp_ep_exists(struct ecore_hwfn *p_hwfn, 1925 struct ecore_iwarp_listener *listener, 1926 struct ecore_iwarp_cm_info *cm_info) 1927 { 1928 struct ecore_iwarp_ep *ep = OSAL_NULL; 1929 bool found = false; 1930 1931 OSAL_SPIN_LOCK(&listener->lock); 1932 OSAL_LIST_FOR_EACH_ENTRY(ep, &listener->ep_list, 1933 list_entry, struct ecore_iwarp_ep) { 1934 if ((ep->cm_info.local_port == cm_info->local_port) && 1935 (ep->cm_info.remote_port == cm_info->remote_port) && 1936 (ep->cm_info.vlan == cm_info->vlan) && 1937 !OSAL_MEMCMP(&(ep->cm_info.local_ip), cm_info->local_ip, 1938 sizeof(cm_info->local_ip)) && 1939 !OSAL_MEMCMP(&(ep->cm_info.remote_ip), cm_info->remote_ip, 1940 sizeof(cm_info->remote_ip))) { 1941 found = true; 1942 break; 1943 } 1944 } 1945 1946 OSAL_SPIN_UNLOCK(&listener->lock); 1947 1948 if (found) { 1949 DP_NOTICE(p_hwfn, false, "SYN received on active connection - dropping\n"); 1950 ecore_iwarp_print_cm_info(p_hwfn, cm_info); 1951 1952 return true; 1953 } 1954 1955 return false; 1956 } 1957 1958 static struct ecore_iwarp_listener * 1959 ecore_iwarp_get_listener(struct ecore_hwfn *p_hwfn, 1960 struct ecore_iwarp_cm_info *cm_info) 1961 { 1962 struct ecore_iwarp_listener *listener = OSAL_NULL; 1963 static const u32 ip_zero[4] = {0, 0, 0, 0}; 1964 bool found = false; 1965 1966 ecore_iwarp_print_cm_info(p_hwfn, cm_info); 1967 1968 OSAL_LIST_FOR_EACH_ENTRY(listener, 1969 &p_hwfn->p_rdma_info->iwarp.listen_list, 1970 list_entry, struct ecore_iwarp_listener) { 1971 if (listener->port == cm_info->local_port) { 1972 /* Any IP (i.e. 0.0.0.0 ) will be treated as any vlan */ 1973 if (!OSAL_MEMCMP(listener->ip_addr, 1974 ip_zero, 1975 sizeof(ip_zero))) { 1976 found = true; 1977 break; 1978 } 1979 1980 /* If not any IP -> check vlan as well */ 1981 if (!OSAL_MEMCMP(listener->ip_addr, 1982 cm_info->local_ip, 1983 sizeof(cm_info->local_ip)) && 1984 1985 (listener->vlan == cm_info->vlan)) { 1986 found = true; 1987 break; 1988 } 1989 } 1990 } 1991 1992 if (found && listener->state == ECORE_IWARP_LISTENER_STATE_ACTIVE) { 1993 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "listener found = %p\n", 1994 listener); 1995 return listener; 1996 } 1997 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "listener not found\n"); 1998 return OSAL_NULL; 1999 } 2000 2001 static enum _ecore_status_t 2002 ecore_iwarp_parse_rx_pkt(struct ecore_hwfn *p_hwfn, 2003 struct ecore_iwarp_cm_info *cm_info, 2004 void *buf, 2005 u8 *remote_mac_addr, 2006 u8 *local_mac_addr, 2007 int *payload_len, 2008 int *tcp_start_offset) 2009 { 2010 struct ecore_vlan_ethhdr *vethh; 2011 struct ecore_ethhdr *ethh; 2012 struct ecore_iphdr *iph; 2013 struct ecore_ipv6hdr *ip6h; 2014 struct ecore_tcphdr *tcph; 2015 bool vlan_valid = false; 2016 int eth_hlen, ip_hlen; 2017 u16 eth_type; 2018 int i; 2019 2020 ethh = (struct ecore_ethhdr *)buf; 2021 eth_type = ntohs(ethh->h_proto); 2022 if (eth_type == ETH_P_8021Q) { 2023 vlan_valid = true; 2024 vethh = (struct ecore_vlan_ethhdr *)ethh; 2025 cm_info->vlan = ntohs(vethh->h_vlan_TCI) & VLAN_VID_MASK; 2026 eth_type = ntohs(vethh->h_vlan_encapsulated_proto); 2027 } 2028 2029 eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0); 2030 2031 OSAL_MEMCPY(remote_mac_addr, 2032 ethh->h_source, 2033 ETH_ALEN); 2034 2035 OSAL_MEMCPY(local_mac_addr, 2036 ethh->h_dest, 2037 ETH_ALEN); 2038 2039 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "eth_type =%d Source mac: [0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]\n", 2040 eth_type, ethh->h_source[0], ethh->h_source[1], 2041 ethh->h_source[2], ethh->h_source[3], 2042 ethh->h_source[4], ethh->h_source[5]); 2043 2044 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "eth_hlen=%d destination mac: [0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]\n", 2045 eth_hlen, ethh->h_dest[0], ethh->h_dest[1], 2046 ethh->h_dest[2], ethh->h_dest[3], 2047 ethh->h_dest[4], ethh->h_dest[5]); 2048 2049 iph = (struct ecore_iphdr *)((u8 *)(ethh) + eth_hlen); 2050 2051 if (eth_type == ETH_P_IP) { 2052 if (iph->protocol != IPPROTO_TCP) { 2053 DP_NOTICE(p_hwfn, false, 2054 "Unexpected ip protocol on ll2 %x\n", 2055 iph->protocol); 2056 return ECORE_INVAL; 2057 } 2058 2059 cm_info->local_ip[0] = ntohl(iph->daddr); 2060 cm_info->remote_ip[0] = ntohl(iph->saddr); 2061 cm_info->ip_version = (enum ecore_tcp_ip_version)TCP_IPV4; 2062 2063 ip_hlen = (iph->ihl)*sizeof(u32); 2064 *payload_len = ntohs(iph->tot_len) - ip_hlen; 2065 2066 } else if (eth_type == ETH_P_IPV6) { 2067 ip6h = (struct ecore_ipv6hdr *)iph; 2068 2069 if (ip6h->nexthdr != IPPROTO_TCP) { 2070 DP_NOTICE(p_hwfn, false, 2071 "Unexpected ip protocol on ll2 %x\n", 2072 iph->protocol); 2073 return ECORE_INVAL; 2074 } 2075 2076 for (i = 0; i < 4; i++) { 2077 cm_info->local_ip[i] = 2078 ntohl(ip6h->daddr.in6_u.u6_addr32[i]); 2079 cm_info->remote_ip[i] = 2080 ntohl(ip6h->saddr.in6_u.u6_addr32[i]); 2081 } 2082 cm_info->ip_version = (enum ecore_tcp_ip_version)TCP_IPV6; 2083 2084 ip_hlen = sizeof(*ip6h); 2085 *payload_len = ntohs(ip6h->payload_len); 2086 } else { 2087 DP_NOTICE(p_hwfn, false, 2088 "Unexpected ethertype on ll2 %x\n", eth_type); 2089 return ECORE_INVAL; 2090 } 2091 2092 tcph = (struct ecore_tcphdr *)((u8 *)iph + ip_hlen); 2093 2094 if (!tcph->syn) { 2095 DP_NOTICE(p_hwfn, false, 2096 "Only SYN type packet expected on this ll2 conn, iph->ihl=%d source=%d dest=%d\n", 2097 iph->ihl, tcph->source, tcph->dest); 2098 return ECORE_INVAL; 2099 } 2100 2101 cm_info->local_port = ntohs(tcph->dest); 2102 cm_info->remote_port = ntohs(tcph->source); 2103 2104 ecore_iwarp_print_cm_info(p_hwfn, cm_info); 2105 2106 *tcp_start_offset = eth_hlen + ip_hlen; 2107 2108 return ECORE_SUCCESS; 2109 } 2110 2111 static struct ecore_iwarp_fpdu * 2112 ecore_iwarp_get_curr_fpdu(struct ecore_hwfn *p_hwfn, u16 cid) 2113 { 2114 struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 2115 struct ecore_iwarp_fpdu *partial_fpdu; 2116 u32 idx = cid - ecore_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_IWARP); 2117 2118 if (idx >= iwarp_info->max_num_partial_fpdus) { 2119 DP_ERR(p_hwfn, "Invalid cid %x max_num_partial_fpdus=%x\n", cid, 2120 iwarp_info->max_num_partial_fpdus); 2121 return OSAL_NULL; 2122 } 2123 2124 partial_fpdu = &iwarp_info->partial_fpdus[idx]; 2125 2126 return partial_fpdu; 2127 } 2128 2129 enum ecore_iwarp_mpa_pkt_type { 2130 ECORE_IWARP_MPA_PKT_PACKED, 2131 ECORE_IWARP_MPA_PKT_PARTIAL, 2132 ECORE_IWARP_MPA_PKT_UNALIGNED 2133 }; 2134 2135 #define ECORE_IWARP_INVALID_FPDU_LENGTH 0xffff 2136 #define ECORE_IWARP_MPA_FPDU_LENGTH_SIZE (2) 2137 #define ECORE_IWARP_MPA_CRC32_DIGEST_SIZE (4) 2138 2139 /* Pad to multiple of 4 */ 2140 #define ECORE_IWARP_PDU_DATA_LEN_WITH_PAD(data_len) (((data_len) + 3) & ~3) 2141 2142 #define ECORE_IWARP_FPDU_LEN_WITH_PAD(_mpa_len) \ 2143 (ECORE_IWARP_PDU_DATA_LEN_WITH_PAD(_mpa_len + \ 2144 ECORE_IWARP_MPA_FPDU_LENGTH_SIZE) + \ 2145 ECORE_IWARP_MPA_CRC32_DIGEST_SIZE) 2146 2147 /* fpdu can be fragmented over maximum 3 bds: header, partial mpa, unaligned */ 2148 #define ECORE_IWARP_MAX_BDS_PER_FPDU 3 2149 2150 char *pkt_type_str[] = { 2151 "ECORE_IWARP_MPA_PKT_PACKED", 2152 "ECORE_IWARP_MPA_PKT_PARTIAL", 2153 "ECORE_IWARP_MPA_PKT_UNALIGNED" 2154 }; 2155 2156 static enum _ecore_status_t 2157 ecore_iwarp_recycle_pkt(struct ecore_hwfn *p_hwfn, 2158 struct ecore_iwarp_fpdu *fpdu, 2159 struct ecore_iwarp_ll2_buff *buf); 2160 2161 static enum ecore_iwarp_mpa_pkt_type 2162 ecore_iwarp_mpa_classify(struct ecore_hwfn *p_hwfn, 2163 struct ecore_iwarp_fpdu *fpdu, 2164 u16 tcp_payload_len, 2165 u8 *mpa_data) 2166 2167 { 2168 enum ecore_iwarp_mpa_pkt_type pkt_type; 2169 u16 mpa_len; 2170 2171 if (fpdu->incomplete_bytes) { 2172 pkt_type = ECORE_IWARP_MPA_PKT_UNALIGNED; 2173 goto out; 2174 } 2175 2176 /* special case of one byte remaining... */ 2177 if (tcp_payload_len == 1) { 2178 /* lower byte will be read next packet */ 2179 fpdu->fpdu_length = *mpa_data << 8; 2180 pkt_type = ECORE_IWARP_MPA_PKT_PARTIAL; 2181 goto out; 2182 } 2183 2184 mpa_len = ntohs(*((u16 *)(mpa_data))); 2185 fpdu->fpdu_length = ECORE_IWARP_FPDU_LEN_WITH_PAD(mpa_len); 2186 2187 if (fpdu->fpdu_length <= tcp_payload_len) 2188 pkt_type = ECORE_IWARP_MPA_PKT_PACKED; 2189 else 2190 pkt_type = ECORE_IWARP_MPA_PKT_PARTIAL; 2191 2192 out: 2193 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2194 "MPA_ALIGN: %s: fpdu_length=0x%x tcp_payload_len:0x%x\n", 2195 pkt_type_str[pkt_type], fpdu->fpdu_length, tcp_payload_len); 2196 2197 return pkt_type; 2198 } 2199 2200 static void 2201 ecore_iwarp_init_fpdu(struct ecore_iwarp_ll2_buff *buf, 2202 struct ecore_iwarp_fpdu *fpdu, 2203 struct unaligned_opaque_data *pkt_data, 2204 u16 tcp_payload_size, u8 placement_offset) 2205 { 2206 fpdu->mpa_buf = buf; 2207 fpdu->pkt_hdr = buf->data_phys_addr + placement_offset; 2208 fpdu->pkt_hdr_size = pkt_data->tcp_payload_offset; 2209 2210 fpdu->mpa_frag = buf->data_phys_addr + pkt_data->first_mpa_offset; 2211 fpdu->mpa_frag_virt = (u8 *)(buf->data) + pkt_data->first_mpa_offset; 2212 2213 if (tcp_payload_size == 1) 2214 fpdu->incomplete_bytes = ECORE_IWARP_INVALID_FPDU_LENGTH; 2215 else if (tcp_payload_size < fpdu->fpdu_length) 2216 fpdu->incomplete_bytes = fpdu->fpdu_length - tcp_payload_size; 2217 else 2218 fpdu->incomplete_bytes = 0; /* complete fpdu */ 2219 2220 fpdu->mpa_frag_len = fpdu->fpdu_length - fpdu->incomplete_bytes; 2221 } 2222 2223 static enum _ecore_status_t 2224 ecore_iwarp_copy_fpdu(struct ecore_hwfn *p_hwfn, 2225 struct ecore_iwarp_fpdu *fpdu, 2226 struct unaligned_opaque_data *pkt_data, 2227 struct ecore_iwarp_ll2_buff *buf, 2228 u16 tcp_payload_size) 2229 2230 { 2231 u8 *tmp_buf = p_hwfn->p_rdma_info->iwarp.mpa_intermediate_buf; 2232 enum _ecore_status_t rc; 2233 2234 /* need to copy the data from the partial packet stored in fpdu 2235 * to the new buf, for this we also need to move the data currently 2236 * placed on the buf. The assumption is that the buffer is big enough 2237 * since fpdu_length <= mss, we use an intermediate buffer since 2238 * we may need to copy the new data to an overlapping location 2239 */ 2240 if ((fpdu->mpa_frag_len + tcp_payload_size) > (u16)buf->buff_size) { 2241 DP_ERR(p_hwfn, 2242 "MPA ALIGN: Unexpected: buffer is not large enough for split fpdu buff_size = %d mpa_frag_len = %d, tcp_payload_size = %d, incomplete_bytes = %d\n", 2243 buf->buff_size, fpdu->mpa_frag_len, tcp_payload_size, 2244 fpdu->incomplete_bytes); 2245 return ECORE_INVAL; 2246 } 2247 2248 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2249 "MPA ALIGN Copying fpdu: [%p, %d] [%p, %d]\n", 2250 fpdu->mpa_frag_virt, fpdu->mpa_frag_len, 2251 (u8 *)(buf->data) + pkt_data->first_mpa_offset, 2252 tcp_payload_size); 2253 2254 OSAL_MEMCPY(tmp_buf, fpdu->mpa_frag_virt, fpdu->mpa_frag_len); 2255 OSAL_MEMCPY(tmp_buf + fpdu->mpa_frag_len, 2256 (u8 *)(buf->data) + pkt_data->first_mpa_offset, 2257 tcp_payload_size); 2258 2259 rc = ecore_iwarp_recycle_pkt(p_hwfn, fpdu, fpdu->mpa_buf); 2260 if (rc) 2261 return rc; 2262 2263 /* If we managed to post the buffer copy the data to the new buffer 2264 * o/w this will occur in the next round... 2265 */ 2266 OSAL_MEMCPY((u8 *)(buf->data), tmp_buf, 2267 fpdu->mpa_frag_len + tcp_payload_size); 2268 2269 fpdu->mpa_buf = buf; 2270 /* fpdu->pkt_hdr remains as is */ 2271 /* fpdu->mpa_frag is overriden with new buf */ 2272 fpdu->mpa_frag = buf->data_phys_addr; 2273 fpdu->mpa_frag_virt = buf->data; 2274 fpdu->mpa_frag_len += tcp_payload_size; 2275 2276 fpdu->incomplete_bytes -= tcp_payload_size; 2277 2278 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2279 "MPA ALIGN: split fpdu buff_size = %d mpa_frag_len = %d, tcp_payload_size = %d, incomplete_bytes = %d\n", 2280 buf->buff_size, fpdu->mpa_frag_len, tcp_payload_size, 2281 fpdu->incomplete_bytes); 2282 2283 return 0; 2284 } 2285 2286 static void 2287 ecore_iwarp_update_fpdu_length(struct ecore_hwfn *p_hwfn, 2288 struct ecore_iwarp_fpdu *fpdu, 2289 u8 *mpa_data) 2290 { 2291 u16 mpa_len; 2292 2293 /* Update incomplete packets if needed */ 2294 if (fpdu->incomplete_bytes == ECORE_IWARP_INVALID_FPDU_LENGTH) { 2295 mpa_len = fpdu->fpdu_length | *mpa_data; 2296 fpdu->fpdu_length = ECORE_IWARP_FPDU_LEN_WITH_PAD(mpa_len); 2297 fpdu->mpa_frag_len = fpdu->fpdu_length; 2298 /* one byte of hdr */ 2299 fpdu->incomplete_bytes = fpdu->fpdu_length - 1; 2300 DP_VERBOSE(p_hwfn, 2301 ECORE_MSG_RDMA, 2302 "MPA_ALIGN: Partial header mpa_len=%x fpdu_length=%x incomplete_bytes=%x\n", 2303 mpa_len, fpdu->fpdu_length, fpdu->incomplete_bytes); 2304 } 2305 } 2306 2307 #define ECORE_IWARP_IS_RIGHT_EDGE(_curr_pkt) \ 2308 (GET_FIELD(_curr_pkt->flags, \ 2309 UNALIGNED_OPAQUE_DATA_PKT_REACHED_WIN_RIGHT_EDGE)) 2310 2311 /* This function is used to recycle a buffer using the ll2 drop option. It 2312 * uses the mechanism to ensure that all buffers posted to tx before this one 2313 * were completed. The buffer sent here will be sent as a cookie in the tx 2314 * completion function and can then be reposted to rx chain when done. The flow 2315 * that requires this is the flow where a FPDU splits over more than 3 tcp 2316 * segments. In this case the driver needs to re-post a rx buffer instead of 2317 * the one received, but driver can't simply repost a buffer it copied from 2318 * as there is a case where the buffer was originally a packed FPDU, and is 2319 * partially posted to FW. Driver needs to ensure FW is done with it. 2320 */ 2321 static enum _ecore_status_t 2322 ecore_iwarp_recycle_pkt(struct ecore_hwfn *p_hwfn, 2323 struct ecore_iwarp_fpdu *fpdu, 2324 struct ecore_iwarp_ll2_buff *buf) 2325 { 2326 struct ecore_ll2_tx_pkt_info tx_pkt; 2327 enum _ecore_status_t rc; 2328 u8 ll2_handle; 2329 2330 OSAL_MEM_ZERO(&tx_pkt, sizeof(tx_pkt)); 2331 tx_pkt.num_of_bds = 1; 2332 tx_pkt.tx_dest = ECORE_LL2_TX_DEST_DROP; 2333 tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; 2334 tx_pkt.first_frag = fpdu->pkt_hdr; 2335 tx_pkt.first_frag_len = fpdu->pkt_hdr_size; 2336 buf->piggy_buf = OSAL_NULL; 2337 tx_pkt.cookie = buf; 2338 2339 ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; 2340 2341 rc = ecore_ll2_prepare_tx_packet(p_hwfn, 2342 ll2_handle, 2343 &tx_pkt, true); 2344 2345 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2346 "MPA_ALIGN: send drop tx packet [%lx, 0x%x], buf=%p, rc=%d\n", 2347 (long unsigned int)tx_pkt.first_frag, 2348 tx_pkt.first_frag_len, buf, rc); 2349 2350 if (rc) 2351 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2352 "Can't drop packet rc=%d\n", rc); 2353 2354 return rc; 2355 } 2356 2357 static enum _ecore_status_t 2358 ecore_iwarp_win_right_edge(struct ecore_hwfn *p_hwfn, 2359 struct ecore_iwarp_fpdu *fpdu) 2360 { 2361 struct ecore_ll2_tx_pkt_info tx_pkt; 2362 enum _ecore_status_t rc; 2363 u8 ll2_handle; 2364 2365 OSAL_MEM_ZERO(&tx_pkt, sizeof(tx_pkt)); 2366 tx_pkt.num_of_bds = 1; 2367 tx_pkt.tx_dest = ECORE_LL2_TX_DEST_LB; 2368 tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; 2369 2370 tx_pkt.first_frag = fpdu->pkt_hdr; 2371 tx_pkt.first_frag_len = fpdu->pkt_hdr_size; 2372 tx_pkt.enable_ip_cksum = true; 2373 tx_pkt.enable_l4_cksum = true; 2374 tx_pkt.calc_ip_len = true; 2375 /* vlan overload with enum iwarp_ll2_tx_queues */ 2376 tx_pkt.vlan = IWARP_LL2_ALIGNED_RIGHT_TRIMMED_TX_QUEUE; 2377 2378 ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; 2379 2380 rc = ecore_ll2_prepare_tx_packet(p_hwfn, 2381 ll2_handle, 2382 &tx_pkt, true); 2383 2384 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2385 "MPA_ALIGN: Sent right edge FPDU num_bds=%d [%lx, 0x%x], rc=%d\n", 2386 tx_pkt.num_of_bds, (long unsigned int)tx_pkt.first_frag, 2387 tx_pkt.first_frag_len, rc); 2388 2389 if (rc) 2390 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2391 "Can't send right edge rc=%d\n", rc); 2392 2393 return rc; 2394 } 2395 2396 static enum _ecore_status_t 2397 ecore_iwarp_send_fpdu(struct ecore_hwfn *p_hwfn, 2398 struct ecore_iwarp_fpdu *fpdu, 2399 struct unaligned_opaque_data *curr_pkt, 2400 struct ecore_iwarp_ll2_buff *buf, 2401 u16 tcp_payload_size, 2402 enum ecore_iwarp_mpa_pkt_type pkt_type) 2403 { 2404 struct ecore_ll2_tx_pkt_info tx_pkt; 2405 enum _ecore_status_t rc; 2406 u8 ll2_handle; 2407 2408 OSAL_MEM_ZERO(&tx_pkt, sizeof(tx_pkt)); 2409 2410 tx_pkt.num_of_bds = (pkt_type == ECORE_IWARP_MPA_PKT_UNALIGNED) ? 3 : 2; 2411 tx_pkt.tx_dest = ECORE_LL2_TX_DEST_LB; 2412 tx_pkt.l4_hdr_offset_w = fpdu->pkt_hdr_size >> 2; 2413 2414 /* Send the mpa_buf only with the last fpdu (in case of packed) */ 2415 if ((pkt_type == ECORE_IWARP_MPA_PKT_UNALIGNED) || 2416 (tcp_payload_size <= fpdu->fpdu_length)) 2417 tx_pkt.cookie = fpdu->mpa_buf; 2418 2419 tx_pkt.first_frag = fpdu->pkt_hdr; 2420 tx_pkt.first_frag_len = fpdu->pkt_hdr_size; 2421 tx_pkt.enable_ip_cksum = true; 2422 tx_pkt.enable_l4_cksum = true; 2423 tx_pkt.calc_ip_len = true; 2424 /* vlan overload with enum iwarp_ll2_tx_queues */ 2425 tx_pkt.vlan = IWARP_LL2_ALIGNED_TX_QUEUE; 2426 2427 /* special case of unaligned packet and not packed, need to send 2428 * both buffers as cookie to release. 2429 */ 2430 if (tcp_payload_size == fpdu->incomplete_bytes) { 2431 fpdu->mpa_buf->piggy_buf = buf; 2432 } 2433 2434 ll2_handle = p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle; 2435 2436 rc = ecore_ll2_prepare_tx_packet(p_hwfn, 2437 ll2_handle, 2438 &tx_pkt, true); 2439 if (rc) 2440 goto err; 2441 2442 rc = ecore_ll2_set_fragment_of_tx_packet(p_hwfn, ll2_handle, 2443 fpdu->mpa_frag, 2444 fpdu->mpa_frag_len); 2445 if (rc) 2446 goto err; 2447 2448 if (fpdu->incomplete_bytes) { 2449 rc = ecore_ll2_set_fragment_of_tx_packet( 2450 p_hwfn, ll2_handle, 2451 buf->data_phys_addr + curr_pkt->first_mpa_offset, 2452 fpdu->incomplete_bytes); 2453 2454 if (rc) 2455 goto err; 2456 } 2457 2458 err: 2459 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2460 "MPA_ALIGN: Sent FPDU num_bds=%d [%lx, 0x%x], [0x%lx, 0x%x], [0x%lx, 0x%x] (cookie %p) rc=%d\n", 2461 tx_pkt.num_of_bds, (long unsigned int)tx_pkt.first_frag, 2462 tx_pkt.first_frag_len, (long unsigned int)fpdu->mpa_frag, 2463 fpdu->mpa_frag_len, (long unsigned int)buf->data_phys_addr + 2464 curr_pkt->first_mpa_offset, fpdu->incomplete_bytes, 2465 tx_pkt.cookie, rc); 2466 2467 return rc; 2468 } 2469 2470 static void 2471 ecore_iwarp_mpa_get_data(struct ecore_hwfn *p_hwfn, 2472 struct unaligned_opaque_data *curr_pkt, 2473 u32 opaque_data0, u32 opaque_data1) 2474 { 2475 u64 opaque_data; 2476 2477 opaque_data = HILO_64(opaque_data1, opaque_data0); 2478 *curr_pkt = *((struct unaligned_opaque_data *)&opaque_data); 2479 2480 /* fix endianity */ 2481 curr_pkt->first_mpa_offset = curr_pkt->tcp_payload_offset + 2482 OSAL_LE16_TO_CPU(curr_pkt->first_mpa_offset); 2483 curr_pkt->cid = OSAL_LE32_TO_CPU(curr_pkt->cid); 2484 2485 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2486 "OPAQUE0=0x%x OPAQUE1=0x%x first_mpa_offset:0x%x\ttcp_payload_offset:0x%x\tflags:0x%x\tcid:0x%x\n", 2487 opaque_data0, opaque_data1, curr_pkt->first_mpa_offset, 2488 curr_pkt->tcp_payload_offset, curr_pkt->flags, 2489 curr_pkt->cid); 2490 } 2491 2492 static void 2493 ecore_iwarp_mpa_print_tcp_seq(struct ecore_hwfn *p_hwfn, 2494 void *buf) 2495 { 2496 struct ecore_vlan_ethhdr *vethh; 2497 struct ecore_ethhdr *ethh; 2498 struct ecore_iphdr *iph; 2499 struct ecore_ipv6hdr *ip6h; 2500 struct ecore_tcphdr *tcph; 2501 bool vlan_valid = false; 2502 int eth_hlen, ip_hlen; 2503 u16 eth_type; 2504 2505 if ((p_hwfn->dp_level > ECORE_LEVEL_VERBOSE) || 2506 !(p_hwfn->dp_module & ECORE_MSG_RDMA)) 2507 return; 2508 2509 ethh = (struct ecore_ethhdr *)buf; 2510 eth_type = ntohs(ethh->h_proto); 2511 if (eth_type == ETH_P_8021Q) { 2512 vlan_valid = true; 2513 vethh = (struct ecore_vlan_ethhdr *)ethh; 2514 eth_type = ntohs(vethh->h_vlan_encapsulated_proto); 2515 } 2516 2517 eth_hlen = ETH_HLEN + (vlan_valid ? sizeof(u32) : 0); 2518 2519 iph = (struct ecore_iphdr *)((u8 *)(ethh) + eth_hlen); 2520 2521 if (eth_type == ETH_P_IP) { 2522 ip_hlen = (iph->ihl)*sizeof(u32); 2523 } else if (eth_type == ETH_P_IPV6) { 2524 ip6h = (struct ecore_ipv6hdr *)iph; 2525 ip_hlen = sizeof(*ip6h); 2526 } else { 2527 DP_ERR(p_hwfn, "Unexpected ethertype on ll2 %x\n", eth_type); 2528 return; 2529 } 2530 2531 tcph = (struct ecore_tcphdr *)((u8 *)iph + ip_hlen); 2532 2533 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Processing MPA PKT: tcp_seq=0x%x tcp_ack_seq=0x%x\n", 2534 ntohl(tcph->seq), ntohl(tcph->ack_seq)); 2535 2536 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "eth_type =%d Source mac: [0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]\n", 2537 eth_type, ethh->h_source[0], ethh->h_source[1], 2538 ethh->h_source[2], ethh->h_source[3], 2539 ethh->h_source[4], ethh->h_source[5]); 2540 2541 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "eth_hlen=%d destination mac: [0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]:[0x%x]\n", 2542 eth_hlen, ethh->h_dest[0], ethh->h_dest[1], 2543 ethh->h_dest[2], ethh->h_dest[3], 2544 ethh->h_dest[4], ethh->h_dest[5]); 2545 2546 return; 2547 } 2548 2549 /* This function is called when an unaligned or incomplete MPA packet arrives 2550 * driver needs to align the packet, perhaps using previous data and send 2551 * it down to FW once it is aligned. 2552 */ 2553 static enum _ecore_status_t 2554 ecore_iwarp_process_mpa_pkt(struct ecore_hwfn *p_hwfn, 2555 struct ecore_iwarp_ll2_mpa_buf *mpa_buf) 2556 { 2557 struct ecore_iwarp_ll2_buff *buf = mpa_buf->ll2_buf; 2558 enum ecore_iwarp_mpa_pkt_type pkt_type; 2559 struct unaligned_opaque_data *curr_pkt = &mpa_buf->data; 2560 struct ecore_iwarp_fpdu *fpdu; 2561 u8 *mpa_data; 2562 enum _ecore_status_t rc = ECORE_SUCCESS; 2563 2564 ecore_iwarp_mpa_print_tcp_seq( 2565 p_hwfn, (u8 *)(buf->data) + mpa_buf->placement_offset); 2566 2567 fpdu = ecore_iwarp_get_curr_fpdu(p_hwfn, curr_pkt->cid & 0xffff); 2568 if (!fpdu) {/* something corrupt with cid, post rx back */ 2569 DP_ERR(p_hwfn, "Invalid cid, drop and post back to rx cid=%x\n", 2570 curr_pkt->cid); 2571 rc = ecore_iwarp_ll2_post_rx( 2572 p_hwfn, buf, p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle); 2573 2574 if (rc) { /* not much we can do here except log and free */ 2575 DP_ERR(p_hwfn, "Post rx buffer failed\n"); 2576 2577 /* we don't expect any failures from rx, not even 2578 * busy since we allocate #bufs=#descs 2579 */ 2580 rc = ECORE_UNKNOWN_ERROR; 2581 } 2582 return rc; 2583 } 2584 2585 do { 2586 mpa_data = ((u8 *)(buf->data) + curr_pkt->first_mpa_offset); 2587 2588 pkt_type = ecore_iwarp_mpa_classify(p_hwfn, fpdu, 2589 mpa_buf->tcp_payload_len, 2590 mpa_data); 2591 2592 switch (pkt_type) { 2593 case ECORE_IWARP_MPA_PKT_PARTIAL: 2594 ecore_iwarp_init_fpdu(buf, fpdu, 2595 curr_pkt, 2596 mpa_buf->tcp_payload_len, 2597 mpa_buf->placement_offset); 2598 2599 if (!ECORE_IWARP_IS_RIGHT_EDGE(curr_pkt)) { 2600 mpa_buf->tcp_payload_len = 0; 2601 break; 2602 } 2603 2604 rc = ecore_iwarp_win_right_edge(p_hwfn, fpdu); 2605 2606 if (rc) { 2607 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2608 "Can't send FPDU:reset rc=%d\n", rc); 2609 OSAL_MEM_ZERO(fpdu, sizeof(*fpdu)); 2610 break; 2611 } 2612 2613 mpa_buf->tcp_payload_len = 0; 2614 break; 2615 case ECORE_IWARP_MPA_PKT_PACKED: 2616 if (fpdu->fpdu_length == 8) { 2617 DP_ERR(p_hwfn, "SUSPICIOUS fpdu_length = 0x%x: assuming bug...aborting this packet...\n", 2618 fpdu->fpdu_length); 2619 mpa_buf->tcp_payload_len = 0; 2620 break; 2621 } 2622 2623 ecore_iwarp_init_fpdu(buf, fpdu, 2624 curr_pkt, 2625 mpa_buf->tcp_payload_len, 2626 mpa_buf->placement_offset); 2627 2628 rc = ecore_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf, 2629 mpa_buf->tcp_payload_len, 2630 pkt_type); 2631 if (rc) { 2632 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2633 "Can't send FPDU:reset rc=%d\n", rc); 2634 OSAL_MEM_ZERO(fpdu, sizeof(*fpdu)); 2635 break; 2636 } 2637 mpa_buf->tcp_payload_len -= fpdu->fpdu_length; 2638 curr_pkt->first_mpa_offset += fpdu->fpdu_length; 2639 break; 2640 case ECORE_IWARP_MPA_PKT_UNALIGNED: 2641 ecore_iwarp_update_fpdu_length(p_hwfn, fpdu, mpa_data); 2642 if (mpa_buf->tcp_payload_len < fpdu->incomplete_bytes) { 2643 /* special handling of fpdu split over more 2644 * than 2 segments 2645 */ 2646 if (ECORE_IWARP_IS_RIGHT_EDGE(curr_pkt)) { 2647 rc = ecore_iwarp_win_right_edge(p_hwfn, 2648 fpdu); 2649 /* packet will be re-processed later */ 2650 if (rc) 2651 return rc; 2652 } 2653 2654 rc = ecore_iwarp_copy_fpdu( 2655 p_hwfn, fpdu, curr_pkt, 2656 buf, mpa_buf->tcp_payload_len); 2657 2658 /* packet will be re-processed later */ 2659 if (rc) 2660 return rc; 2661 2662 mpa_buf->tcp_payload_len = 0; 2663 2664 break; 2665 } 2666 2667 rc = ecore_iwarp_send_fpdu(p_hwfn, fpdu, curr_pkt, buf, 2668 mpa_buf->tcp_payload_len, 2669 pkt_type); 2670 if (rc) { 2671 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2672 "Can't send FPDU:delay rc=%d\n", rc); 2673 /* don't reset fpdu -> we need it for next 2674 * classify 2675 */ 2676 break; 2677 } 2678 mpa_buf->tcp_payload_len -= fpdu->incomplete_bytes; 2679 curr_pkt->first_mpa_offset += fpdu->incomplete_bytes; 2680 /* The framed PDU was sent - no more incomplete bytes */ 2681 fpdu->incomplete_bytes = 0; 2682 break; 2683 } 2684 2685 } while (mpa_buf->tcp_payload_len && !rc); 2686 2687 return rc; 2688 } 2689 2690 static void 2691 ecore_iwarp_process_pending_pkts(struct ecore_hwfn *p_hwfn) 2692 { 2693 struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 2694 struct ecore_iwarp_ll2_mpa_buf *mpa_buf = OSAL_NULL; 2695 enum _ecore_status_t rc; 2696 2697 while (!OSAL_LIST_IS_EMPTY(&iwarp_info->mpa_buf_pending_list)) { 2698 mpa_buf = OSAL_LIST_FIRST_ENTRY( 2699 &iwarp_info->mpa_buf_pending_list, 2700 struct ecore_iwarp_ll2_mpa_buf, 2701 list_entry); 2702 2703 rc = ecore_iwarp_process_mpa_pkt(p_hwfn, mpa_buf); 2704 2705 /* busy means break and continue processing later, don't 2706 * remove the buf from the pending list. 2707 */ 2708 if (rc == ECORE_BUSY) 2709 break; 2710 2711 #ifdef _NTDDK_ 2712 #pragma warning(suppress : 6011) 2713 #pragma warning(suppress : 28182) 2714 #endif 2715 OSAL_LIST_REMOVE_ENTRY( 2716 &mpa_buf->list_entry, 2717 &iwarp_info->mpa_buf_pending_list); 2718 2719 OSAL_LIST_PUSH_TAIL(&mpa_buf->list_entry, 2720 &iwarp_info->mpa_buf_list); 2721 2722 if (rc) { /* different error, don't continue */ 2723 DP_NOTICE(p_hwfn, false, "process pkts failed rc=%d\n", 2724 rc); 2725 break; 2726 } 2727 } 2728 } 2729 2730 static void 2731 ecore_iwarp_ll2_comp_mpa_pkt(void *cxt, 2732 struct ecore_ll2_comp_rx_data *data) 2733 { 2734 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; 2735 struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 2736 struct ecore_iwarp_ll2_mpa_buf *mpa_buf; 2737 2738 iwarp_info->unalign_rx_comp++; 2739 2740 mpa_buf = OSAL_LIST_FIRST_ENTRY(&iwarp_info->mpa_buf_list, 2741 struct ecore_iwarp_ll2_mpa_buf, 2742 list_entry); 2743 2744 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2745 "LL2 MPA CompRx buf=%p placement_offset=%d, payload_len=0x%x mpa_buf=%p\n", 2746 data->cookie, data->u.placement_offset, 2747 data->length.packet_length, mpa_buf); 2748 2749 if (!mpa_buf) { 2750 DP_ERR(p_hwfn, "no free mpa buf. this is a driver bug.\n"); 2751 return; 2752 } 2753 OSAL_LIST_REMOVE_ENTRY(&mpa_buf->list_entry, &iwarp_info->mpa_buf_list); 2754 2755 ecore_iwarp_mpa_get_data(p_hwfn, &mpa_buf->data, 2756 data->opaque_data_0, data->opaque_data_1); 2757 2758 mpa_buf->tcp_payload_len = data->length.packet_length - 2759 mpa_buf->data.first_mpa_offset; 2760 mpa_buf->ll2_buf = (struct ecore_iwarp_ll2_buff *)data->cookie; 2761 mpa_buf->data.first_mpa_offset += data->u.placement_offset; 2762 mpa_buf->placement_offset = data->u.placement_offset; 2763 2764 OSAL_LIST_PUSH_TAIL(&mpa_buf->list_entry, 2765 &iwarp_info->mpa_buf_pending_list); 2766 2767 ecore_iwarp_process_pending_pkts(p_hwfn); 2768 } 2769 2770 static void 2771 ecore_iwarp_ll2_comp_syn_pkt(void *cxt, struct ecore_ll2_comp_rx_data *data) 2772 { 2773 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; 2774 struct ecore_iwarp_ll2_buff *buf = 2775 (struct ecore_iwarp_ll2_buff *)data->cookie; 2776 struct ecore_iwarp_listener *listener; 2777 struct ecore_iwarp_cm_info cm_info; 2778 struct ecore_ll2_tx_pkt_info tx_pkt; 2779 u8 remote_mac_addr[ETH_ALEN]; 2780 u8 local_mac_addr[ETH_ALEN]; 2781 struct ecore_iwarp_ep *ep; 2782 enum _ecore_status_t rc; 2783 int tcp_start_offset; 2784 u8 ts_hdr_size = 0; 2785 int payload_len; 2786 u32 hdr_size; 2787 2788 OSAL_MEM_ZERO(&cm_info, sizeof(cm_info)); 2789 2790 /* Check if packet was received with errors... */ 2791 if (data->err_flags != 0) { 2792 DP_NOTICE(p_hwfn, false, "Error received on SYN packet: 0x%x\n", 2793 data->err_flags); 2794 goto err; 2795 } 2796 2797 if (GET_FIELD(data->parse_flags, 2798 PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED) && 2799 GET_FIELD(data->parse_flags, 2800 PARSING_AND_ERR_FLAGS_L4CHKSMERROR)) { 2801 DP_NOTICE(p_hwfn, false, "Syn packet received with checksum error\n"); 2802 goto err; 2803 } 2804 2805 rc = ecore_iwarp_parse_rx_pkt( 2806 p_hwfn, &cm_info, (u8 *)(buf->data) + data->u.placement_offset, 2807 remote_mac_addr, local_mac_addr, &payload_len, 2808 &tcp_start_offset); 2809 if (rc) 2810 goto err; 2811 2812 /* Check if there is a listener for this 4-tuple */ 2813 listener = ecore_iwarp_get_listener(p_hwfn, &cm_info); 2814 if (!listener) { 2815 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2816 "SYN received on tuple not listened on parse_flags=%d packet len=%d\n", 2817 data->parse_flags, data->length.packet_length); 2818 2819 OSAL_MEMSET(&tx_pkt, 0, sizeof(tx_pkt)); 2820 tx_pkt.num_of_bds = 1; 2821 tx_pkt.bd_flags = 0; 2822 tx_pkt.l4_hdr_offset_w = (data->length.packet_length) >> 2; 2823 tx_pkt.tx_dest = ECORE_LL2_TX_DEST_LB; 2824 tx_pkt.first_frag = buf->data_phys_addr + 2825 data->u.placement_offset; 2826 tx_pkt.first_frag_len = data->length.packet_length; 2827 tx_pkt.cookie = buf; 2828 2829 rc = ecore_ll2_prepare_tx_packet( 2830 p_hwfn, 2831 p_hwfn->p_rdma_info->iwarp.ll2_syn_handle, 2832 &tx_pkt, true); 2833 2834 if (rc) { 2835 DP_NOTICE(p_hwfn, false, 2836 "Can't post SYN back to chip rc=%d\n", rc); 2837 goto err; 2838 } 2839 return; 2840 } 2841 2842 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "Received syn on listening port\n"); 2843 2844 /* For debugging purpose... */ 2845 if (listener->drop) 2846 goto err; 2847 2848 /* There may be an open ep on this connection if this is a syn 2849 * retrasnmit... need to make sure there isn't... 2850 */ 2851 if (ecore_iwarp_ep_exists(p_hwfn, listener, &cm_info)) 2852 goto err; 2853 2854 ep = ecore_iwarp_get_free_ep(p_hwfn); 2855 if (ep == OSAL_NULL) 2856 goto err; 2857 2858 OSAL_SPIN_LOCK(&listener->lock); 2859 OSAL_LIST_PUSH_TAIL(&ep->list_entry, &listener->ep_list); 2860 OSAL_SPIN_UNLOCK(&listener->lock); 2861 2862 OSAL_MEMCPY(ep->remote_mac_addr, 2863 remote_mac_addr, 2864 ETH_ALEN); 2865 OSAL_MEMCPY(ep->local_mac_addr, 2866 local_mac_addr, 2867 ETH_ALEN); 2868 2869 OSAL_MEMCPY(&ep->cm_info, &cm_info, sizeof(ep->cm_info)); 2870 2871 if (p_hwfn->p_rdma_info->iwarp.tcp_flags & ECORE_IWARP_TS_EN) 2872 ts_hdr_size = TIMESTAMP_HEADER_SIZE; 2873 2874 hdr_size = ((cm_info.ip_version == ECORE_TCP_IPV4) ? 40 : 60) + 2875 ts_hdr_size; 2876 ep->mss = p_hwfn->p_rdma_info->iwarp.max_mtu - hdr_size; 2877 ep->mss = OSAL_MIN_T(u16, ECORE_IWARP_MAX_FW_MSS, ep->mss); 2878 2879 ep->listener = listener; 2880 ep->event_cb = listener->event_cb; 2881 ep->cb_context = listener->cb_context; 2882 ep->connect_mode = TCP_CONNECT_PASSIVE; 2883 2884 ep->syn = buf; 2885 ep->syn_ip_payload_length = (u16)payload_len; 2886 ep->syn_phy_addr = buf->data_phys_addr + data->u.placement_offset + 2887 tcp_start_offset; 2888 2889 rc = ecore_iwarp_tcp_offload(p_hwfn, ep); 2890 if (rc != ECORE_SUCCESS) { 2891 ecore_iwarp_return_ep(p_hwfn, ep); 2892 goto err; 2893 } 2894 return; 2895 2896 err: 2897 ecore_iwarp_ll2_post_rx( 2898 p_hwfn, buf, p_hwfn->p_rdma_info->iwarp.ll2_syn_handle); 2899 } 2900 2901 static void 2902 ecore_iwarp_ll2_rel_rx_pkt(void *cxt, 2903 u8 OSAL_UNUSED connection_handle, 2904 void *cookie, 2905 dma_addr_t OSAL_UNUSED rx_buf_addr, 2906 bool OSAL_UNUSED b_last_packet) 2907 { 2908 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; 2909 struct ecore_iwarp_ll2_buff *buffer = 2910 (struct ecore_iwarp_ll2_buff *)cookie; 2911 2912 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, 2913 buffer->data, 2914 buffer->data_phys_addr, 2915 buffer->buff_size); 2916 2917 OSAL_FREE(p_hwfn->p_dev, buffer); 2918 } 2919 2920 static void 2921 ecore_iwarp_ll2_comp_tx_pkt(void *cxt, 2922 u8 connection_handle, 2923 void *cookie, 2924 dma_addr_t OSAL_UNUSED first_frag_addr, 2925 bool OSAL_UNUSED b_last_fragment, 2926 bool OSAL_UNUSED b_last_packet) 2927 { 2928 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; 2929 struct ecore_iwarp_ll2_buff *buffer = 2930 (struct ecore_iwarp_ll2_buff *)cookie; 2931 struct ecore_iwarp_ll2_buff *piggy; 2932 2933 if (!buffer) /* can happen in packed mpa unaligned... */ 2934 return; 2935 2936 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 2937 "LL2 CompTX buf=%p piggy_buf=%p handle=%d\n", 2938 buffer, buffer->piggy_buf, connection_handle); 2939 2940 /* we got a tx packet -> this was originally a rx packet... now we 2941 * can post it back... 2942 */ 2943 piggy = buffer->piggy_buf; 2944 if (piggy) { 2945 buffer->piggy_buf = OSAL_NULL; 2946 ecore_iwarp_ll2_post_rx(p_hwfn, piggy, 2947 connection_handle); 2948 } 2949 2950 ecore_iwarp_ll2_post_rx(p_hwfn, buffer, 2951 connection_handle); 2952 2953 if (connection_handle == p_hwfn->p_rdma_info->iwarp.ll2_mpa_handle) 2954 ecore_iwarp_process_pending_pkts(p_hwfn); 2955 2956 return; 2957 } 2958 2959 static void 2960 ecore_iwarp_ll2_rel_tx_pkt(void *cxt, 2961 u8 OSAL_UNUSED connection_handle, 2962 void *cookie, 2963 dma_addr_t OSAL_UNUSED first_frag_addr, 2964 bool OSAL_UNUSED b_last_fragment, 2965 bool OSAL_UNUSED b_last_packet) 2966 { 2967 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; 2968 struct ecore_iwarp_ll2_buff *buffer = 2969 (struct ecore_iwarp_ll2_buff *)cookie; 2970 2971 if (!buffer) 2972 return; 2973 2974 if (buffer->piggy_buf) { 2975 OSAL_DMA_FREE_COHERENT( 2976 p_hwfn->p_dev, 2977 buffer->piggy_buf->data, 2978 buffer->piggy_buf->data_phys_addr, 2979 buffer->piggy_buf->buff_size); 2980 2981 OSAL_FREE(p_hwfn->p_dev, buffer->piggy_buf); 2982 } 2983 2984 OSAL_DMA_FREE_COHERENT(p_hwfn->p_dev, 2985 buffer->data, 2986 buffer->data_phys_addr, 2987 buffer->buff_size); 2988 2989 OSAL_FREE(p_hwfn->p_dev, buffer); 2990 return; 2991 } 2992 2993 /* Current known slowpath for iwarp ll2 is unalign flush. When this completion 2994 * is received, need to reset the FPDU. 2995 */ 2996 static void 2997 ecore_iwarp_ll2_slowpath(void *cxt, 2998 u8 OSAL_UNUSED connection_handle, 2999 u32 opaque_data_0, 3000 u32 opaque_data_1) 3001 { 3002 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)cxt; 3003 struct unaligned_opaque_data unalign_data; 3004 struct ecore_iwarp_fpdu *fpdu; 3005 3006 ecore_iwarp_mpa_get_data(p_hwfn, &unalign_data, 3007 opaque_data_0, opaque_data_1); 3008 3009 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "(0x%x) Flush fpdu\n", 3010 unalign_data.cid); 3011 3012 fpdu = ecore_iwarp_get_curr_fpdu(p_hwfn, (u16)unalign_data.cid); 3013 if (fpdu) 3014 OSAL_MEM_ZERO(fpdu, sizeof(*fpdu)); 3015 } 3016 3017 static int 3018 ecore_iwarp_ll2_stop(struct ecore_hwfn *p_hwfn) 3019 { 3020 struct ecore_iwarp_info *iwarp_info = &p_hwfn->p_rdma_info->iwarp; 3021 int rc = 0; 3022 3023 if (iwarp_info->ll2_syn_handle != ECORE_IWARP_HANDLE_INVAL) { 3024 rc = ecore_ll2_terminate_connection(p_hwfn, 3025 iwarp_info->ll2_syn_handle); 3026 if (rc) 3027 DP_INFO(p_hwfn, "Failed to terminate syn connection\n"); 3028 3029 ecore_ll2_release_connection(p_hwfn, 3030 iwarp_info->ll2_syn_handle); 3031 iwarp_info->ll2_syn_handle = ECORE_IWARP_HANDLE_INVAL; 3032 } 3033 3034 if (iwarp_info->ll2_ooo_handle != ECORE_IWARP_HANDLE_INVAL) { 3035 rc = ecore_ll2_terminate_connection(p_hwfn, 3036 iwarp_info->ll2_ooo_handle); 3037 if (rc) 3038 DP_INFO(p_hwfn, "Failed to terminate ooo connection\n"); 3039 3040 ecore_ll2_release_connection(p_hwfn, 3041 iwarp_info->ll2_ooo_handle); 3042 iwarp_info->ll2_ooo_handle = ECORE_IWARP_HANDLE_INVAL; 3043 } 3044 3045 if (iwarp_info->ll2_mpa_handle != ECORE_IWARP_HANDLE_INVAL) { 3046 rc = ecore_ll2_terminate_connection(p_hwfn, 3047 iwarp_info->ll2_mpa_handle); 3048 if (rc) 3049 DP_INFO(p_hwfn, "Failed to terminate mpa connection\n"); 3050 3051 ecore_ll2_release_connection(p_hwfn, 3052 iwarp_info->ll2_mpa_handle); 3053 iwarp_info->ll2_mpa_handle = ECORE_IWARP_HANDLE_INVAL; 3054 } 3055 3056 ecore_llh_remove_mac_filter(p_hwfn->p_dev, 0, 3057 p_hwfn->p_rdma_info->iwarp.mac_addr); 3058 3059 return rc; 3060 } 3061 3062 static int 3063 ecore_iwarp_ll2_alloc_buffers(struct ecore_hwfn *p_hwfn, 3064 int num_rx_bufs, 3065 int buff_size, 3066 u8 ll2_handle) 3067 { 3068 struct ecore_iwarp_ll2_buff *buffer; 3069 int rc = 0; 3070 int i; 3071 3072 for (i = 0; i < num_rx_bufs; i++) { 3073 buffer = OSAL_ZALLOC(p_hwfn->p_dev, 3074 GFP_KERNEL, sizeof(*buffer)); 3075 if (!buffer) { 3076 DP_INFO(p_hwfn, "Failed to allocate LL2 buffer desc\n"); 3077 break; 3078 } 3079 3080 buffer->data = 3081 OSAL_DMA_ALLOC_COHERENT(p_hwfn->p_dev, 3082 &buffer->data_phys_addr, 3083 buff_size); 3084 3085 if (!buffer->data) { 3086 DP_INFO(p_hwfn, "Failed to allocate LL2 buffers\n"); 3087 OSAL_FREE(p_hwfn->p_dev, buffer); 3088 rc = ECORE_NOMEM; 3089 break; 3090 } 3091 3092 buffer->buff_size = buff_size; 3093 rc = ecore_iwarp_ll2_post_rx(p_hwfn, buffer, ll2_handle); 3094 3095 if (rc) 3096 break; /* buffers will be deallocated by ecore_ll2 */ 3097 } 3098 return rc; 3099 } 3100 3101 #define ECORE_IWARP_CACHE_PADDING(size) \ 3102 (((size) + ETH_CACHE_LINE_SIZE - 1) & ~(ETH_CACHE_LINE_SIZE - 1)) 3103 3104 #define ECORE_IWARP_MAX_BUF_SIZE(mtu) \ 3105 ECORE_IWARP_CACHE_PADDING(mtu + ETH_HLEN + 2*VLAN_HLEN + 2 +\ 3106 ETH_CACHE_LINE_SIZE) 3107 3108 static int 3109 ecore_iwarp_ll2_start(struct ecore_hwfn *p_hwfn, 3110 struct ecore_rdma_start_in_params *params) 3111 { 3112 struct ecore_iwarp_info *iwarp_info; 3113 struct ecore_ll2_acquire_data data; 3114 struct ecore_ll2_cbs cbs; 3115 u32 mpa_buff_size; 3116 int rc = ECORE_SUCCESS; 3117 u16 n_ooo_bufs; 3118 int i; 3119 3120 iwarp_info = &p_hwfn->p_rdma_info->iwarp; 3121 iwarp_info->ll2_syn_handle = ECORE_IWARP_HANDLE_INVAL; 3122 iwarp_info->ll2_ooo_handle = ECORE_IWARP_HANDLE_INVAL; 3123 iwarp_info->ll2_mpa_handle = ECORE_IWARP_HANDLE_INVAL; 3124 3125 iwarp_info->max_mtu = params->max_mtu; 3126 3127 OSAL_MEMCPY(p_hwfn->p_rdma_info->iwarp.mac_addr, params->mac_addr, 3128 ETH_ALEN); 3129 3130 rc = ecore_llh_add_mac_filter(p_hwfn->p_dev, 0, params->mac_addr); 3131 if (rc != ECORE_SUCCESS) 3132 return rc; 3133 3134 /* Start SYN connection */ 3135 cbs.rx_comp_cb = ecore_iwarp_ll2_comp_syn_pkt; 3136 cbs.rx_release_cb = ecore_iwarp_ll2_rel_rx_pkt; 3137 cbs.tx_comp_cb = ecore_iwarp_ll2_comp_tx_pkt; 3138 cbs.tx_release_cb = ecore_iwarp_ll2_rel_tx_pkt; 3139 cbs.cookie = p_hwfn; 3140 3141 OSAL_MEMSET(&data, 0, sizeof(data)); 3142 data.input.conn_type = ECORE_LL2_TYPE_IWARP; 3143 data.input.mtu = ECORE_IWARP_MAX_SYN_PKT_SIZE; 3144 data.input.rx_num_desc = ECORE_IWARP_LL2_SYN_RX_SIZE; 3145 data.input.tx_num_desc = ECORE_IWARP_LL2_SYN_TX_SIZE; 3146 data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */ 3147 data.input.tx_tc = PKT_LB_TC; 3148 data.input.tx_dest = ECORE_LL2_TX_DEST_LB; 3149 data.p_connection_handle = &iwarp_info->ll2_syn_handle; 3150 data.cbs = &cbs; 3151 3152 rc = ecore_ll2_acquire_connection(p_hwfn, &data); 3153 if (rc) { 3154 DP_NOTICE(p_hwfn, false, "Failed to acquire LL2 connection\n"); 3155 ecore_llh_remove_mac_filter(p_hwfn->p_dev, 0, params->mac_addr); 3156 return rc; 3157 } 3158 3159 rc = ecore_ll2_establish_connection(p_hwfn, iwarp_info->ll2_syn_handle); 3160 if (rc) { 3161 DP_NOTICE(p_hwfn, false, 3162 "Failed to establish LL2 connection\n"); 3163 goto err; 3164 } 3165 3166 rc = ecore_iwarp_ll2_alloc_buffers(p_hwfn, 3167 ECORE_IWARP_LL2_SYN_RX_SIZE, 3168 ECORE_IWARP_MAX_SYN_PKT_SIZE, 3169 iwarp_info->ll2_syn_handle); 3170 if (rc) 3171 goto err; 3172 3173 /* Start OOO connection */ 3174 data.input.conn_type = ECORE_LL2_TYPE_OOO; 3175 data.input.mtu = params->max_mtu; 3176 3177 n_ooo_bufs = params->iwarp.ooo_num_rx_bufs; 3178 3179 if (n_ooo_bufs > ECORE_IWARP_LL2_OOO_MAX_RX_SIZE) 3180 n_ooo_bufs = ECORE_IWARP_LL2_OOO_MAX_RX_SIZE; 3181 3182 data.input.rx_num_desc = n_ooo_bufs; 3183 data.input.rx_num_ooo_buffers = n_ooo_bufs; 3184 3185 p_hwfn->p_rdma_info->iwarp.num_ooo_rx_bufs = data.input.rx_num_desc; 3186 data.input.tx_max_bds_per_packet = 1; /* will never be fragmented */ 3187 data.input.tx_num_desc = ECORE_IWARP_LL2_OOO_DEF_TX_SIZE; 3188 data.p_connection_handle = &iwarp_info->ll2_ooo_handle; 3189 data.input.secondary_queue = true; 3190 3191 rc = ecore_ll2_acquire_connection(p_hwfn, &data); 3192 if (rc) 3193 goto err; 3194 3195 rc = ecore_ll2_establish_connection(p_hwfn, iwarp_info->ll2_ooo_handle); 3196 if (rc) 3197 goto err; 3198 3199 /* Start MPA connection */ 3200 cbs.rx_comp_cb = ecore_iwarp_ll2_comp_mpa_pkt; 3201 cbs.slowpath_cb = ecore_iwarp_ll2_slowpath; 3202 3203 OSAL_MEMSET(&data, 0, sizeof(data)); 3204 data.input.conn_type = ECORE_LL2_TYPE_IWARP; 3205 data.input.mtu = params->max_mtu; 3206 data.input.rx_num_desc = n_ooo_bufs * 2; 3207 /* we allocate the same amount for TX to reduce the chance we 3208 * run out of tx descriptors 3209 */ 3210 data.input.tx_num_desc = data.input.rx_num_desc; 3211 data.input.tx_max_bds_per_packet = ECORE_IWARP_MAX_BDS_PER_FPDU; 3212 data.p_connection_handle = &iwarp_info->ll2_mpa_handle; 3213 data.input.secondary_queue = true; 3214 data.cbs = &cbs; 3215 3216 rc = ecore_ll2_acquire_connection(p_hwfn, &data); 3217 if (rc) 3218 goto err; 3219 3220 rc = ecore_ll2_establish_connection(p_hwfn, iwarp_info->ll2_mpa_handle); 3221 if (rc) 3222 goto err; 3223 3224 mpa_buff_size = ECORE_IWARP_MAX_BUF_SIZE(params->max_mtu); 3225 rc = ecore_iwarp_ll2_alloc_buffers(p_hwfn, 3226 data.input.rx_num_desc, 3227 mpa_buff_size, 3228 iwarp_info->ll2_mpa_handle); 3229 if (rc) 3230 goto err; 3231 3232 iwarp_info->partial_fpdus = 3233 OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, 3234 sizeof(*iwarp_info->partial_fpdus) * 3235 (u16)p_hwfn->p_rdma_info->num_qps); 3236 3237 if (!iwarp_info->partial_fpdus) { 3238 DP_NOTICE(p_hwfn, false, 3239 "Failed to allocate ecore_iwarp_info(partial_fpdus)\n"); 3240 goto err; 3241 } 3242 3243 iwarp_info->max_num_partial_fpdus = (u16)p_hwfn->p_rdma_info->num_qps; 3244 3245 /* The mpa_bufs array serves for pending RX packets received on the 3246 * mpa ll2 that don't have place on the tx ring and require later 3247 * processing. We can't fail on allocation of such a struct therefore 3248 * we allocate enough to take care of all rx packets 3249 */ 3250 iwarp_info->mpa_bufs = 3251 OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, 3252 sizeof(*iwarp_info->mpa_bufs) * 3253 data.input.rx_num_desc); 3254 3255 if (!iwarp_info->mpa_bufs) { 3256 DP_NOTICE(p_hwfn, false, 3257 "Failed to allocate mpa_bufs array mem_size=%d\n", 3258 (u32)(sizeof(*iwarp_info->mpa_bufs) * 3259 data.input.rx_num_desc)); 3260 goto err; 3261 } 3262 3263 iwarp_info->mpa_intermediate_buf = 3264 OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, mpa_buff_size); 3265 if (!iwarp_info->mpa_intermediate_buf) { 3266 DP_NOTICE(p_hwfn, false, 3267 "Failed to allocate mpa_intermediate_buf mem_size=%d\n", 3268 mpa_buff_size); 3269 goto err; 3270 } 3271 3272 OSAL_LIST_INIT(&iwarp_info->mpa_buf_pending_list); 3273 OSAL_LIST_INIT(&iwarp_info->mpa_buf_list); 3274 for (i = 0; i < data.input.rx_num_desc; i++) { 3275 OSAL_LIST_PUSH_TAIL(&iwarp_info->mpa_bufs[i].list_entry, 3276 &iwarp_info->mpa_buf_list); 3277 } 3278 3279 return rc; 3280 3281 err: 3282 ecore_iwarp_ll2_stop(p_hwfn); 3283 3284 return rc; 3285 } 3286 3287 static void 3288 ecore_iwarp_set_defaults(struct ecore_hwfn *p_hwfn, 3289 struct ecore_rdma_start_in_params *params) 3290 { 3291 u32 rcv_wnd_size; 3292 u32 n_ooo_bufs; 3293 3294 /* rcv_wnd_size = 0: use defaults */ 3295 rcv_wnd_size = params->iwarp.rcv_wnd_size; 3296 if (!rcv_wnd_size) { 3297 if (ecore_device_num_ports(p_hwfn->p_dev) == 4) { 3298 rcv_wnd_size = ECORE_IS_AH(p_hwfn->p_dev) ? 3299 ECORE_IWARP_RCV_WND_SIZE_AH_DEF_4_PORTS : 3300 ECORE_IWARP_RCV_WND_SIZE_BB_DEF_4_PORTS; 3301 } else { 3302 rcv_wnd_size = ECORE_IS_AH(p_hwfn->p_dev) ? 3303 ECORE_IWARP_RCV_WND_SIZE_AH_DEF_2_PORTS : 3304 ECORE_IWARP_RCV_WND_SIZE_BB_DEF_2_PORTS; 3305 } 3306 params->iwarp.rcv_wnd_size = rcv_wnd_size; 3307 } 3308 3309 n_ooo_bufs = params->iwarp.ooo_num_rx_bufs; 3310 if (!n_ooo_bufs) { 3311 n_ooo_bufs = (u32)(((u64)ECORE_MAX_OOO * 3312 params->iwarp.rcv_wnd_size) / 3313 params->max_mtu); 3314 n_ooo_bufs = OSAL_MIN_T(u32, n_ooo_bufs, USHRT_MAX); 3315 params->iwarp.ooo_num_rx_bufs = (u16)n_ooo_bufs; 3316 } 3317 } 3318 3319 enum _ecore_status_t 3320 ecore_iwarp_setup(struct ecore_hwfn *p_hwfn, 3321 struct ecore_rdma_start_in_params *params) 3322 { 3323 enum _ecore_status_t rc = ECORE_SUCCESS; 3324 struct ecore_iwarp_info *iwarp_info; 3325 u32 rcv_wnd_size; 3326 3327 iwarp_info = &(p_hwfn->p_rdma_info->iwarp); 3328 3329 if (!params->iwarp.rcv_wnd_size || !params->iwarp.ooo_num_rx_bufs) 3330 ecore_iwarp_set_defaults(p_hwfn, params); 3331 3332 /* Scale 0 will set window of 0xFFFC (64K -4). 3333 * Scale x will set window of 0xFFFC << (x) 3334 * Therefore we subtract log2(64K) so that result is 0 3335 */ 3336 rcv_wnd_size = params->iwarp.rcv_wnd_size; 3337 if (rcv_wnd_size < ECORE_IWARP_RCV_WND_SIZE_MIN) 3338 rcv_wnd_size = ECORE_IWARP_RCV_WND_SIZE_MIN; 3339 3340 iwarp_info->rcv_wnd_scale = OSAL_MIN_T(u32, OSAL_LOG2(rcv_wnd_size) - 3341 OSAL_LOG2(ECORE_IWARP_RCV_WND_SIZE_MIN), ECORE_IWARP_MAX_WND_SCALE); 3342 iwarp_info->rcv_wnd_size = rcv_wnd_size >> iwarp_info->rcv_wnd_scale; 3343 3344 iwarp_info->tcp_flags = params->iwarp.flags; 3345 iwarp_info->crc_needed = params->iwarp.crc_needed; 3346 switch (params->iwarp.mpa_rev) { 3347 case ECORE_MPA_REV1: 3348 iwarp_info->mpa_rev = MPA_NEGOTIATION_TYPE_BASIC; 3349 break; 3350 case ECORE_MPA_REV2: 3351 iwarp_info->mpa_rev = MPA_NEGOTIATION_TYPE_ENHANCED; 3352 break; 3353 } 3354 3355 iwarp_info->peer2peer = params->iwarp.mpa_peer2peer; 3356 iwarp_info->rtr_type = MPA_RTR_TYPE_NONE; 3357 3358 if (params->iwarp.mpa_rtr & ECORE_MPA_RTR_TYPE_ZERO_SEND) 3359 iwarp_info->rtr_type |= MPA_RTR_TYPE_ZERO_SEND; 3360 3361 if (params->iwarp.mpa_rtr & ECORE_MPA_RTR_TYPE_ZERO_WRITE) 3362 iwarp_info->rtr_type |= MPA_RTR_TYPE_ZERO_WRITE; 3363 3364 if (params->iwarp.mpa_rtr & ECORE_MPA_RTR_TYPE_ZERO_READ) 3365 iwarp_info->rtr_type |= MPA_RTR_TYPE_ZERO_READ; 3366 3367 //DAVIDS OSAL_SPIN_LOCK_INIT(&p_hwfn->p_rdma_info->iwarp.qp_lock); 3368 OSAL_LIST_INIT(&p_hwfn->p_rdma_info->iwarp.ep_list); 3369 OSAL_LIST_INIT(&p_hwfn->p_rdma_info->iwarp.listen_list); 3370 3371 ecore_spq_register_async_cb(p_hwfn, PROTOCOLID_IWARP, 3372 ecore_iwarp_async_event); 3373 ecore_ooo_setup(p_hwfn); 3374 3375 rc = ecore_iwarp_ll2_start(p_hwfn, params); 3376 3377 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3378 "MPA_REV = %d. peer2peer=%d rtr=%x\n", 3379 iwarp_info->mpa_rev, 3380 iwarp_info->peer2peer, 3381 iwarp_info->rtr_type); 3382 3383 return rc; 3384 } 3385 3386 enum _ecore_status_t 3387 ecore_iwarp_stop(struct ecore_hwfn *p_hwfn) 3388 { 3389 enum _ecore_status_t rc; 3390 3391 ecore_iwarp_free_prealloc_ep(p_hwfn); 3392 rc = ecore_iwarp_wait_for_all_cids(p_hwfn); 3393 if (rc != ECORE_SUCCESS) 3394 return rc; 3395 3396 ecore_spq_unregister_async_cb(p_hwfn, PROTOCOLID_IWARP); 3397 3398 return ecore_iwarp_ll2_stop(p_hwfn); 3399 } 3400 3401 static void 3402 ecore_iwarp_qp_in_error(struct ecore_hwfn *p_hwfn, 3403 struct ecore_iwarp_ep *ep, 3404 u8 fw_return_code) 3405 { 3406 struct ecore_iwarp_cm_event_params params; 3407 3408 ecore_iwarp_modify_qp(p_hwfn, ep->qp, ECORE_IWARP_QP_STATE_ERROR, true); 3409 3410 params.event = ECORE_IWARP_EVENT_CLOSE; 3411 params.ep_context = ep; 3412 params.cm_info = &ep->cm_info; 3413 params.status = (fw_return_code == IWARP_QP_IN_ERROR_GOOD_CLOSE) ? 3414 ECORE_SUCCESS : ECORE_CONN_RESET; 3415 3416 ep->state = ECORE_IWARP_EP_CLOSED; 3417 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 3418 OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, 3419 &p_hwfn->p_rdma_info->iwarp.ep_list); 3420 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 3421 3422 ep->event_cb(ep->cb_context, ¶ms); 3423 } 3424 3425 static void 3426 ecore_iwarp_exception_received(struct ecore_hwfn *p_hwfn, 3427 struct ecore_iwarp_ep *ep, 3428 int fw_ret_code) 3429 { 3430 struct ecore_iwarp_cm_event_params params; 3431 bool event_cb = false; 3432 3433 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "EP(0x%x) fw_ret_code=%d\n", 3434 ep->cid, fw_ret_code); 3435 3436 switch (fw_ret_code) { 3437 case IWARP_EXCEPTION_DETECTED_LLP_CLOSED: 3438 params.status = ECORE_SUCCESS; 3439 params.event = ECORE_IWARP_EVENT_DISCONNECT; 3440 event_cb = true; 3441 break; 3442 case IWARP_EXCEPTION_DETECTED_LLP_RESET: 3443 params.status = ECORE_CONN_RESET; 3444 params.event = ECORE_IWARP_EVENT_DISCONNECT; 3445 event_cb = true; 3446 break; 3447 case IWARP_EXCEPTION_DETECTED_RQ_EMPTY: 3448 params.event = ECORE_IWARP_EVENT_RQ_EMPTY; 3449 event_cb = true; 3450 break; 3451 case IWARP_EXCEPTION_DETECTED_IRQ_FULL: 3452 params.event = ECORE_IWARP_EVENT_IRQ_FULL; 3453 event_cb = true; 3454 break; 3455 case IWARP_EXCEPTION_DETECTED_LLP_TIMEOUT: 3456 params.event = ECORE_IWARP_EVENT_LLP_TIMEOUT; 3457 event_cb = true; 3458 break; 3459 case IWARP_EXCEPTION_DETECTED_REMOTE_PROTECTION_ERROR: 3460 params.event = ECORE_IWARP_EVENT_REMOTE_PROTECTION_ERROR; 3461 event_cb = true; 3462 break; 3463 case IWARP_EXCEPTION_DETECTED_CQ_OVERFLOW: 3464 params.event = ECORE_IWARP_EVENT_CQ_OVERFLOW; 3465 event_cb = true; 3466 break; 3467 case IWARP_EXCEPTION_DETECTED_LOCAL_CATASTROPHIC: 3468 params.event = ECORE_IWARP_EVENT_QP_CATASTROPHIC; 3469 event_cb = true; 3470 break; 3471 case IWARP_EXCEPTION_DETECTED_LOCAL_ACCESS_ERROR: 3472 params.event = ECORE_IWARP_EVENT_LOCAL_ACCESS_ERROR; 3473 event_cb = true; 3474 break; 3475 case IWARP_EXCEPTION_DETECTED_REMOTE_OPERATION_ERROR: 3476 params.event = ECORE_IWARP_EVENT_REMOTE_OPERATION_ERROR; 3477 event_cb = true; 3478 break; 3479 case IWARP_EXCEPTION_DETECTED_TERMINATE_RECEIVED: 3480 params.event = ECORE_IWARP_EVENT_TERMINATE_RECEIVED; 3481 event_cb = true; 3482 break; 3483 default: 3484 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3485 "Unhandled exception received...\n"); 3486 break; 3487 } 3488 3489 if (event_cb) { 3490 params.ep_context = ep; 3491 params.cm_info = &ep->cm_info; 3492 ep->event_cb(ep->cb_context, ¶ms); 3493 } 3494 } 3495 3496 static void 3497 ecore_iwarp_tcp_connect_unsuccessful(struct ecore_hwfn *p_hwfn, 3498 struct ecore_iwarp_ep *ep, 3499 u8 fw_return_code) 3500 { 3501 struct ecore_iwarp_cm_event_params params; 3502 3503 OSAL_MEM_ZERO(¶ms, sizeof(params)); 3504 params.event = ECORE_IWARP_EVENT_ACTIVE_COMPLETE; 3505 params.ep_context = ep; 3506 params.cm_info = &ep->cm_info; 3507 ep->state = ECORE_IWARP_EP_CLOSED; 3508 3509 switch (fw_return_code) { 3510 case IWARP_CONN_ERROR_TCP_CONNECT_INVALID_PACKET: 3511 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3512 "%s(0x%x) TCP connect got invalid packet\n", 3513 ECORE_IWARP_CONNECT_MODE_STRING(ep), 3514 ep->tcp_cid); 3515 params.status = ECORE_CONN_RESET; 3516 break; 3517 case IWARP_CONN_ERROR_TCP_CONNECTION_RST: 3518 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3519 "%s(0x%x) TCP Connection Reset\n", 3520 ECORE_IWARP_CONNECT_MODE_STRING(ep), 3521 ep->tcp_cid); 3522 params.status = ECORE_CONN_RESET; 3523 break; 3524 case IWARP_CONN_ERROR_TCP_CONNECT_TIMEOUT: 3525 DP_NOTICE(p_hwfn, false, "%s(0x%x) TCP timeout\n", 3526 ECORE_IWARP_CONNECT_MODE_STRING(ep), 3527 ep->tcp_cid); 3528 params.status = ECORE_TIMEOUT; 3529 break; 3530 case IWARP_CONN_ERROR_MPA_NOT_SUPPORTED_VER: 3531 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA not supported VER\n", 3532 ECORE_IWARP_CONNECT_MODE_STRING(ep), 3533 ep->tcp_cid); 3534 params.status = ECORE_CONN_REFUSED; 3535 break; 3536 case IWARP_CONN_ERROR_MPA_INVALID_PACKET: 3537 DP_NOTICE(p_hwfn, false, "%s(0x%x) MPA Invalid Packet\n", 3538 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid); 3539 params.status = ECORE_CONN_RESET; 3540 break; 3541 default: 3542 DP_ERR(p_hwfn, "%s(0x%x) Unexpected return code tcp connect: %d\n", 3543 ECORE_IWARP_CONNECT_MODE_STRING(ep), ep->tcp_cid, 3544 fw_return_code); 3545 params.status = ECORE_CONN_RESET; 3546 break; 3547 } 3548 3549 if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 3550 ep->tcp_cid = ECORE_IWARP_INVALID_TCP_CID; 3551 ecore_iwarp_return_ep(p_hwfn, ep); 3552 } else { 3553 ep->event_cb(ep->cb_context, ¶ms); 3554 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 3555 OSAL_LIST_REMOVE_ENTRY(&ep->list_entry, 3556 &p_hwfn->p_rdma_info->iwarp.ep_list); 3557 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 3558 } 3559 } 3560 3561 static void 3562 ecore_iwarp_connect_complete(struct ecore_hwfn *p_hwfn, 3563 struct ecore_iwarp_ep *ep, 3564 u8 fw_return_code) 3565 { 3566 if (ep->connect_mode == TCP_CONNECT_PASSIVE) { 3567 /* Done with the SYN packet, post back to ll2 rx */ 3568 ecore_iwarp_ll2_post_rx( 3569 p_hwfn, ep->syn, 3570 p_hwfn->p_rdma_info->iwarp.ll2_syn_handle); 3571 3572 ep->syn = OSAL_NULL; 3573 3574 if (ep->state == ECORE_IWARP_EP_ABORTING) 3575 return; 3576 3577 /* If connect failed - upper layer doesn't know about it */ 3578 if (fw_return_code == RDMA_RETURN_OK) 3579 ecore_iwarp_mpa_received(p_hwfn, ep); 3580 else 3581 ecore_iwarp_tcp_connect_unsuccessful(p_hwfn, ep, 3582 fw_return_code); 3583 3584 } else { 3585 if (fw_return_code == RDMA_RETURN_OK) 3586 ecore_iwarp_mpa_offload(p_hwfn, ep); 3587 else 3588 ecore_iwarp_tcp_connect_unsuccessful(p_hwfn, ep, 3589 fw_return_code); 3590 } 3591 } 3592 3593 static OSAL_INLINE bool 3594 ecore_iwarp_check_ep_ok(struct ecore_hwfn *p_hwfn, 3595 struct ecore_iwarp_ep *ep) 3596 { 3597 if (ep == OSAL_NULL) { 3598 DP_ERR(p_hwfn, "ERROR ON ASYNC ep=%p\n", ep); 3599 return false; 3600 } 3601 3602 if (ep->sig != 0xdeadbeef) { 3603 DP_ERR(p_hwfn, "ERROR ON ASYNC ep=%p\n", ep); 3604 return false; 3605 } 3606 3607 return true; 3608 } 3609 3610 static enum _ecore_status_t 3611 ecore_iwarp_async_event(struct ecore_hwfn *p_hwfn, 3612 u8 fw_event_code, 3613 u16 OSAL_UNUSED echo, 3614 union event_ring_data *data, 3615 u8 fw_return_code) 3616 { 3617 struct regpair *fw_handle = &data->rdma_data.async_handle; 3618 struct ecore_iwarp_ep *ep = OSAL_NULL; 3619 u16 cid; 3620 3621 ep = (struct ecore_iwarp_ep *)(osal_uintptr_t)HILO_64(fw_handle->hi, 3622 fw_handle->lo); 3623 3624 switch (fw_event_code) { 3625 /* Async completion after TCP 3-way handshake */ 3626 case IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE: 3627 if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) 3628 return ECORE_INVAL; 3629 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3630 "EP(0x%x) IWARP_EVENT_TYPE_ASYNC_CONNECT_COMPLETE fw_ret_code=%d\n", 3631 ep->tcp_cid, fw_return_code); 3632 ecore_iwarp_connect_complete(p_hwfn, ep, fw_return_code); 3633 break; 3634 case IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED: 3635 if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) 3636 return ECORE_INVAL; 3637 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3638 "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_EXCEPTION_DETECTED fw_ret_code=%d\n", 3639 ep->cid, fw_return_code); 3640 ecore_iwarp_exception_received(p_hwfn, ep, fw_return_code); 3641 break; 3642 /* Async completion for Close Connection ramrod */ 3643 case IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE: 3644 if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) 3645 return ECORE_INVAL; 3646 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3647 "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_QP_IN_ERROR_STATE fw_ret_code=%d\n", 3648 ep->cid, fw_return_code); 3649 ecore_iwarp_qp_in_error(p_hwfn, ep, fw_return_code); 3650 break; 3651 /* Async event for active side only */ 3652 case IWARP_EVENT_TYPE_ASYNC_ENHANCED_MPA_REPLY_ARRIVED: 3653 if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) 3654 return ECORE_INVAL; 3655 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3656 "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_MPA_REPLY_ARRIVED fw_ret_code=%d\n", 3657 ep->cid, fw_return_code); 3658 ecore_iwarp_mpa_reply_arrived(p_hwfn, ep); 3659 break; 3660 /* MPA Negotiations completed */ 3661 case IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE: 3662 if (!ecore_iwarp_check_ep_ok(p_hwfn, ep)) 3663 return ECORE_INVAL; 3664 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3665 "QP(0x%x) IWARP_EVENT_TYPE_ASYNC_MPA_HANDSHAKE_COMPLETE fw_ret_code=%d\n", 3666 ep->cid, fw_return_code); 3667 ecore_iwarp_mpa_complete(p_hwfn, ep, fw_return_code); 3668 break; 3669 case IWARP_EVENT_TYPE_ASYNC_CID_CLEANED: 3670 cid = (u16)OSAL_LE32_TO_CPU(fw_handle->lo); 3671 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3672 "(0x%x)IWARP_EVENT_TYPE_ASYNC_CID_CLEANED\n", 3673 cid); 3674 ecore_iwarp_cid_cleaned(p_hwfn, cid); 3675 3676 break; 3677 case IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW: 3678 DP_NOTICE(p_hwfn, false, 3679 "IWARP_EVENT_TYPE_ASYNC_CQ_OVERFLOW\n"); 3680 3681 p_hwfn->p_rdma_info->events.affiliated_event( 3682 p_hwfn->p_rdma_info->events.context, 3683 ECORE_IWARP_EVENT_CQ_OVERFLOW, 3684 (void *)fw_handle); 3685 break; 3686 default: 3687 DP_ERR(p_hwfn, "Received unexpected async iwarp event %d\n", 3688 fw_event_code); 3689 return ECORE_INVAL; 3690 } 3691 return ECORE_SUCCESS; 3692 } 3693 3694 enum _ecore_status_t 3695 ecore_iwarp_create_listen(void *rdma_cxt, 3696 struct ecore_iwarp_listen_in *iparams, 3697 struct ecore_iwarp_listen_out *oparams) 3698 { 3699 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; 3700 struct ecore_iwarp_listener *listener; 3701 3702 listener = OSAL_ZALLOC(p_hwfn->p_dev, GFP_KERNEL, sizeof(*listener)); 3703 3704 if (!listener) { 3705 DP_NOTICE(p_hwfn, 3706 false, 3707 "ecore iwarp create listener failed: cannot allocate memory (listener). rc = %d\n", 3708 ECORE_NOMEM); 3709 return ECORE_NOMEM; 3710 } 3711 listener->ip_version = iparams->ip_version; 3712 OSAL_MEMCPY(listener->ip_addr, 3713 iparams->ip_addr, 3714 sizeof(listener->ip_addr)); 3715 listener->port = iparams->port; 3716 listener->vlan = iparams->vlan; 3717 3718 listener->event_cb = iparams->event_cb; 3719 listener->cb_context = iparams->cb_context; 3720 listener->max_backlog = iparams->max_backlog; 3721 listener->state = ECORE_IWARP_LISTENER_STATE_ACTIVE; 3722 oparams->handle = listener; 3723 3724 OSAL_SPIN_LOCK_INIT(&listener->lock); 3725 OSAL_LIST_INIT(&listener->ep_list); 3726 OSAL_SPIN_LOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 3727 OSAL_LIST_PUSH_TAIL(&listener->list_entry, 3728 &p_hwfn->p_rdma_info->iwarp.listen_list); 3729 OSAL_SPIN_UNLOCK(&p_hwfn->p_rdma_info->iwarp.iw_lock); 3730 3731 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "callback=%p handle=%p ip=%x:%x:%x:%x port=0x%x vlan=0x%x\n", 3732 listener->event_cb, 3733 listener, 3734 listener->ip_addr[0], 3735 listener->ip_addr[1], 3736 listener->ip_addr[2], 3737 listener->ip_addr[3], 3738 listener->port, 3739 listener->vlan); 3740 3741 return ECORE_SUCCESS; 3742 } 3743 3744 static void 3745 ecore_iwarp_pause_complete(struct ecore_iwarp_listener *listener) 3746 { 3747 struct ecore_iwarp_cm_event_params params; 3748 3749 if (listener->state == ECORE_IWARP_LISTENER_STATE_UNPAUSE) 3750 listener->state = ECORE_IWARP_LISTENER_STATE_ACTIVE; 3751 3752 params.event = ECORE_IWARP_EVENT_LISTEN_PAUSE_COMP; 3753 listener->event_cb(listener->cb_context, ¶ms); 3754 } 3755 3756 static void 3757 ecore_iwarp_tcp_abort_comp(struct ecore_hwfn *p_hwfn, void *cookie, 3758 union event_ring_data OSAL_UNUSED *data, 3759 u8 OSAL_UNUSED fw_return_code) 3760 { 3761 struct ecore_iwarp_ep *ep = (struct ecore_iwarp_ep *)cookie; 3762 struct ecore_iwarp_listener *listener = ep->listener; 3763 3764 ecore_iwarp_return_ep(p_hwfn, ep); 3765 3766 if (OSAL_LIST_IS_EMPTY(&listener->ep_list)) 3767 listener->done = true; 3768 } 3769 3770 static void 3771 ecore_iwarp_abort_inflight_connections(struct ecore_hwfn *p_hwfn, 3772 struct ecore_iwarp_listener *listener) 3773 { 3774 struct ecore_spq_entry *p_ent = OSAL_NULL; 3775 struct ecore_iwarp_ep *ep = OSAL_NULL; 3776 struct ecore_sp_init_data init_data; 3777 struct ecore_spq_comp_cb comp_data; 3778 enum _ecore_status_t rc; 3779 3780 /* remove listener from list before destroying listener */ 3781 OSAL_LIST_REMOVE_ENTRY(&listener->list_entry, 3782 &p_hwfn->p_rdma_info->iwarp.listen_list); 3783 if (OSAL_LIST_IS_EMPTY(&listener->ep_list)) { 3784 listener->done = true; 3785 return; 3786 } 3787 OSAL_MEMSET(&init_data, 0, sizeof(init_data)); 3788 init_data.p_comp_data = &comp_data; 3789 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 3790 init_data.comp_mode = ECORE_SPQ_MODE_CB; 3791 init_data.p_comp_data->function = ecore_iwarp_tcp_abort_comp; 3792 3793 OSAL_LIST_FOR_EACH_ENTRY(ep, &listener->ep_list, 3794 list_entry, struct ecore_iwarp_ep) { 3795 ep->state = ECORE_IWARP_EP_ABORTING; 3796 init_data.p_comp_data->cookie = ep; 3797 init_data.cid = ep->tcp_cid; 3798 rc = ecore_sp_init_request(p_hwfn, &p_ent, 3799 IWARP_RAMROD_CMD_ID_ABORT_TCP_OFFLOAD, 3800 PROTOCOLID_IWARP, 3801 &init_data); 3802 if (rc == ECORE_SUCCESS) 3803 ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); 3804 } 3805 } 3806 3807 static void 3808 ecore_iwarp_listener_state_transition(struct ecore_hwfn *p_hwfn, void *cookie, 3809 union event_ring_data OSAL_UNUSED *data, 3810 u8 OSAL_UNUSED fw_return_code) 3811 { 3812 struct ecore_iwarp_listener *listener = (struct ecore_iwarp_listener *)cookie; 3813 3814 switch (listener->state) { 3815 case ECORE_IWARP_LISTENER_STATE_PAUSE: 3816 case ECORE_IWARP_LISTENER_STATE_UNPAUSE: 3817 ecore_iwarp_pause_complete(listener); 3818 break; 3819 case ECORE_IWARP_LISTENER_STATE_DESTROYING: 3820 ecore_iwarp_abort_inflight_connections(p_hwfn, listener); 3821 break; 3822 default: 3823 break; 3824 } 3825 } 3826 3827 static enum _ecore_status_t 3828 ecore_iwarp_empty_ramrod(struct ecore_hwfn *p_hwfn, 3829 struct ecore_iwarp_listener *listener) 3830 { 3831 struct ecore_spq_entry *p_ent = OSAL_NULL; 3832 struct ecore_spq_comp_cb comp_data; 3833 struct ecore_sp_init_data init_data; 3834 enum _ecore_status_t rc; 3835 3836 OSAL_MEMSET(&init_data, 0, sizeof(init_data)); 3837 init_data.p_comp_data = &comp_data; 3838 init_data.cid = ecore_spq_get_cid(p_hwfn); 3839 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 3840 init_data.comp_mode = ECORE_SPQ_MODE_CB; 3841 init_data.p_comp_data->function = ecore_iwarp_listener_state_transition; 3842 init_data.p_comp_data->cookie = listener; 3843 rc = ecore_sp_init_request(p_hwfn, &p_ent, 3844 COMMON_RAMROD_EMPTY, 3845 PROTOCOLID_COMMON, 3846 &init_data); 3847 if (rc != ECORE_SUCCESS) 3848 return rc; 3849 3850 rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); 3851 if (rc != ECORE_SUCCESS) 3852 return rc; 3853 3854 return rc; 3855 } 3856 3857 enum _ecore_status_t 3858 ecore_iwarp_pause_listen(void *rdma_cxt, void *handle, 3859 bool pause, bool comp) 3860 { 3861 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; 3862 struct ecore_iwarp_listener *listener = 3863 (struct ecore_iwarp_listener *)handle; 3864 enum _ecore_status_t rc; 3865 3866 listener->state = pause ? 3867 ECORE_IWARP_LISTENER_STATE_PAUSE : 3868 ECORE_IWARP_LISTENER_STATE_UNPAUSE; 3869 if (!comp) 3870 return ECORE_SUCCESS; 3871 3872 rc = ecore_iwarp_empty_ramrod(p_hwfn, listener); 3873 if (rc != ECORE_SUCCESS) 3874 return rc; 3875 3876 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "listener=%p, state=%d\n", 3877 listener, listener->state); 3878 3879 return ECORE_PENDING; 3880 } 3881 3882 enum _ecore_status_t 3883 ecore_iwarp_destroy_listen(void *rdma_cxt, void *handle) 3884 { 3885 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; 3886 struct ecore_iwarp_listener *listener = 3887 (struct ecore_iwarp_listener *)handle; 3888 enum _ecore_status_t rc; 3889 int wait_count = 0; 3890 3891 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "handle=%p\n", handle); 3892 3893 listener->state = ECORE_IWARP_LISTENER_STATE_DESTROYING; 3894 rc = ecore_iwarp_empty_ramrod(p_hwfn, listener); 3895 if (rc != ECORE_SUCCESS) 3896 return rc; 3897 3898 while (!listener->done) { 3899 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, 3900 "Waiting for ep list to be empty...\n"); 3901 OSAL_MSLEEP(100); 3902 if (wait_count++ > 200) { 3903 DP_NOTICE(p_hwfn, false, "ep list close timeout\n"); 3904 break; 3905 } 3906 } 3907 3908 OSAL_FREE(p_hwfn->p_dev, listener); 3909 3910 return ECORE_SUCCESS; 3911 } 3912 3913 enum _ecore_status_t 3914 ecore_iwarp_send_rtr(void *rdma_cxt, struct ecore_iwarp_send_rtr_in *iparams) 3915 { 3916 struct ecore_hwfn *p_hwfn = (struct ecore_hwfn *)rdma_cxt; 3917 struct ecore_sp_init_data init_data; 3918 struct ecore_spq_entry *p_ent; 3919 struct ecore_rdma_qp *qp; 3920 struct ecore_iwarp_ep *ep; 3921 enum _ecore_status_t rc; 3922 3923 ep = (struct ecore_iwarp_ep *)iparams->ep_context; 3924 if (!ep) { 3925 DP_ERR(p_hwfn, "Ep Context receive in send_rtr is NULL\n"); 3926 return ECORE_INVAL; 3927 } 3928 3929 qp = ep->qp; 3930 3931 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "QP(0x%x) EP(0x%x)\n", 3932 qp->icid, ep->tcp_cid); 3933 3934 OSAL_MEMSET(&init_data, 0, sizeof(init_data)); 3935 init_data.cid = qp->icid; 3936 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 3937 init_data.comp_mode = ECORE_SPQ_MODE_CB; 3938 3939 rc = ecore_sp_init_request(p_hwfn, &p_ent, 3940 IWARP_RAMROD_CMD_ID_MPA_OFFLOAD_SEND_RTR, 3941 PROTOCOLID_IWARP, &init_data); 3942 3943 if (rc != ECORE_SUCCESS) 3944 return rc; 3945 3946 rc = ecore_spq_post(p_hwfn, p_ent, OSAL_NULL); 3947 3948 DP_VERBOSE(p_hwfn, ECORE_MSG_RDMA, "ecore_iwarp_send_rtr, rc = 0x%x\n", 3949 rc); 3950 3951 return rc; 3952 } 3953 3954 enum _ecore_status_t 3955 ecore_iwarp_query_qp(struct ecore_rdma_qp *qp, 3956 struct ecore_rdma_query_qp_out_params *out_params) 3957 { 3958 out_params->state = ecore_iwarp2roce_state(qp->iwarp_state); 3959 return ECORE_SUCCESS; 3960 } 3961 3962 #ifdef _NTDDK_ 3963 #pragma warning(pop) 3964 #endif 3965