1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 /* QLogic qed NIC Driver 3 * Copyright (c) 2015-2017 QLogic Corporation 4 * Copyright (c) 2019-2020 Marvell International Ltd. 5 */ 6 7 #include <linux/types.h> 8 #include <asm/byteorder.h> 9 #include <linux/bitops.h> 10 #include <linux/delay.h> 11 #include <linux/dma-mapping.h> 12 #include <linux/errno.h> 13 #include <linux/io.h> 14 #include <linux/kernel.h> 15 #include <linux/list.h> 16 #include <linux/module.h> 17 #include <linux/mutex.h> 18 #include <linux/pci.h> 19 #include <linux/slab.h> 20 #include <linux/spinlock.h> 21 #include <linux/string.h> 22 #include <linux/if_vlan.h> 23 #include "qed.h" 24 #include "qed_cxt.h" 25 #include "qed_dcbx.h" 26 #include "qed_hsi.h" 27 #include "qed_hw.h" 28 #include "qed_init_ops.h" 29 #include "qed_int.h" 30 #include "qed_ll2.h" 31 #include "qed_mcp.h" 32 #include "qed_reg_addr.h" 33 #include <linux/qed/qed_rdma_if.h> 34 #include "qed_rdma.h" 35 #include "qed_roce.h" 36 #include "qed_sp.h" 37 38 static void qed_roce_free_real_icid(struct qed_hwfn *p_hwfn, u16 icid); 39 40 static int qed_roce_async_event(struct qed_hwfn *p_hwfn, u8 fw_event_code, 41 __le16 echo, union event_ring_data *data, 42 u8 fw_return_code) 43 { 44 struct qed_rdma_events events = p_hwfn->p_rdma_info->events; 45 union rdma_eqe_data *rdata = &data->rdma_data; 46 47 if (fw_event_code == ROCE_ASYNC_EVENT_DESTROY_QP_DONE) { 48 u16 icid = (u16)le32_to_cpu(rdata->rdma_destroy_qp_data.cid); 49 50 /* icid release in this async event can occur only if the icid 51 * was offloaded to the FW. In case it wasn't offloaded this is 52 * handled in qed_roce_sp_destroy_qp. 53 */ 54 qed_roce_free_real_icid(p_hwfn, icid); 55 } else if (fw_event_code == ROCE_ASYNC_EVENT_SRQ_EMPTY || 56 fw_event_code == ROCE_ASYNC_EVENT_SRQ_LIMIT) { 57 u16 srq_id = (u16)le32_to_cpu(rdata->async_handle.lo); 58 59 events.affiliated_event(events.context, fw_event_code, 60 &srq_id); 61 } else { 62 events.affiliated_event(events.context, fw_event_code, 63 (void *)&rdata->async_handle); 64 } 65 66 return 0; 67 } 68 69 void qed_roce_stop(struct qed_hwfn *p_hwfn) 70 { 71 struct qed_bmap *rcid_map = &p_hwfn->p_rdma_info->real_cid_map; 72 int wait_count = 0; 73 74 /* when destroying a_RoCE QP the control is returned to the user after 75 * the synchronous part. The asynchronous part may take a little longer. 76 * We delay for a short while if an async destroy QP is still expected. 77 * Beyond the added delay we clear the bitmap anyway. 78 */ 79 while (!bitmap_empty(rcid_map->bitmap, rcid_map->max_count)) { 80 /* If the HW device is during recovery, all resources are 81 * immediately reset without receiving a per-cid indication 82 * from HW. In this case we don't expect the cid bitmap to be 83 * cleared. 84 */ 85 if (p_hwfn->cdev->recov_in_prog) 86 return; 87 88 msleep(100); 89 if (wait_count++ > 20) { 90 DP_NOTICE(p_hwfn, "cid bitmap wait timed out\n"); 91 break; 92 } 93 } 94 } 95 96 static void qed_rdma_copy_gids(struct qed_rdma_qp *qp, __le32 *src_gid, 97 __le32 *dst_gid) 98 { 99 u32 i; 100 101 if (qp->roce_mode == ROCE_V2_IPV4) { 102 /* The IPv4 addresses shall be aligned to the highest word. 103 * The lower words must be zero. 104 */ 105 memset(src_gid, 0, sizeof(union qed_gid)); 106 memset(dst_gid, 0, sizeof(union qed_gid)); 107 src_gid[3] = cpu_to_le32(qp->sgid.ipv4_addr); 108 dst_gid[3] = cpu_to_le32(qp->dgid.ipv4_addr); 109 } else { 110 /* GIDs and IPv6 addresses coincide in location and size */ 111 for (i = 0; i < ARRAY_SIZE(qp->sgid.dwords); i++) { 112 src_gid[i] = cpu_to_le32(qp->sgid.dwords[i]); 113 dst_gid[i] = cpu_to_le32(qp->dgid.dwords[i]); 114 } 115 } 116 } 117 118 static enum roce_flavor qed_roce_mode_to_flavor(enum roce_mode roce_mode) 119 { 120 switch (roce_mode) { 121 case ROCE_V1: 122 return PLAIN_ROCE; 123 case ROCE_V2_IPV4: 124 return RROCE_IPV4; 125 case ROCE_V2_IPV6: 126 return RROCE_IPV6; 127 default: 128 return MAX_ROCE_FLAVOR; 129 } 130 } 131 132 static void qed_roce_free_cid_pair(struct qed_hwfn *p_hwfn, u16 cid) 133 { 134 spin_lock_bh(&p_hwfn->p_rdma_info->lock); 135 qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid); 136 qed_bmap_release_id(p_hwfn, &p_hwfn->p_rdma_info->cid_map, cid + 1); 137 spin_unlock_bh(&p_hwfn->p_rdma_info->lock); 138 } 139 140 int qed_roce_alloc_cid(struct qed_hwfn *p_hwfn, u16 *cid) 141 { 142 struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info; 143 u32 responder_icid; 144 u32 requester_icid; 145 int rc; 146 147 spin_lock_bh(&p_hwfn->p_rdma_info->lock); 148 rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map, 149 &responder_icid); 150 if (rc) { 151 spin_unlock_bh(&p_rdma_info->lock); 152 return rc; 153 } 154 155 rc = qed_rdma_bmap_alloc_id(p_hwfn, &p_rdma_info->cid_map, 156 &requester_icid); 157 158 spin_unlock_bh(&p_rdma_info->lock); 159 if (rc) 160 goto err; 161 162 /* the two icid's should be adjacent */ 163 if ((requester_icid - responder_icid) != 1) { 164 DP_NOTICE(p_hwfn, "Failed to allocate two adjacent qp's'\n"); 165 rc = -EINVAL; 166 goto err; 167 } 168 169 responder_icid += qed_cxt_get_proto_cid_start(p_hwfn, 170 p_rdma_info->proto); 171 requester_icid += qed_cxt_get_proto_cid_start(p_hwfn, 172 p_rdma_info->proto); 173 174 /* If these icids require a new ILT line allocate DMA-able context for 175 * an ILT page 176 */ 177 rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, responder_icid); 178 if (rc) 179 goto err; 180 181 rc = qed_cxt_dynamic_ilt_alloc(p_hwfn, QED_ELEM_CXT, requester_icid); 182 if (rc) 183 goto err; 184 185 *cid = (u16)responder_icid; 186 return rc; 187 188 err: 189 spin_lock_bh(&p_rdma_info->lock); 190 qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, responder_icid); 191 qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, requester_icid); 192 193 spin_unlock_bh(&p_rdma_info->lock); 194 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, 195 "Allocate CID - failed, rc = %d\n", rc); 196 return rc; 197 } 198 199 static void qed_roce_set_real_cid(struct qed_hwfn *p_hwfn, u32 cid) 200 { 201 spin_lock_bh(&p_hwfn->p_rdma_info->lock); 202 qed_bmap_set_id(p_hwfn, &p_hwfn->p_rdma_info->real_cid_map, cid); 203 spin_unlock_bh(&p_hwfn->p_rdma_info->lock); 204 } 205 206 static u8 qed_roce_get_qp_tc(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) 207 { 208 u8 pri, tc = 0; 209 210 if (qp->vlan_id) { 211 pri = (qp->vlan_id & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; 212 tc = qed_dcbx_get_priority_tc(p_hwfn, pri); 213 } 214 215 DP_VERBOSE(p_hwfn, QED_MSG_SP, 216 "qp icid %u tc: %u (vlan priority %s)\n", 217 qp->icid, tc, qp->vlan_id ? "enabled" : "disabled"); 218 219 return tc; 220 } 221 222 static int qed_roce_sp_create_responder(struct qed_hwfn *p_hwfn, 223 struct qed_rdma_qp *qp) 224 { 225 struct roce_create_qp_resp_ramrod_data *p_ramrod; 226 u16 regular_latency_queue, low_latency_queue; 227 struct qed_sp_init_data init_data; 228 struct qed_spq_entry *p_ent; 229 enum protocol_type proto; 230 u32 flags = 0; 231 int rc; 232 u8 tc; 233 234 if (!qp->has_resp) 235 return 0; 236 237 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); 238 239 /* Allocate DMA-able memory for IRQ */ 240 qp->irq_num_pages = 1; 241 qp->irq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 242 RDMA_RING_PAGE_SIZE, 243 &qp->irq_phys_addr, GFP_KERNEL); 244 if (!qp->irq) { 245 rc = -ENOMEM; 246 DP_NOTICE(p_hwfn, 247 "qed create responder failed: cannot allocate memory (irq). rc = %d\n", 248 rc); 249 return rc; 250 } 251 252 /* Get SPQ entry */ 253 memset(&init_data, 0, sizeof(init_data)); 254 init_data.cid = qp->icid; 255 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 256 init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 257 258 rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_CREATE_QP, 259 PROTOCOLID_ROCE, &init_data); 260 if (rc) 261 goto err; 262 263 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_ROCE_FLAVOR, 264 qed_roce_mode_to_flavor(qp->roce_mode)); 265 266 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_RD_EN, 267 qp->incoming_rdma_read_en); 268 269 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RDMA_WR_EN, 270 qp->incoming_rdma_write_en); 271 272 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_ATOMIC_EN, 273 qp->incoming_atomic_en); 274 275 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN, 276 qp->e2e_flow_control_en); 277 278 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_SRQ_FLG, qp->use_srq); 279 280 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_RESERVED_KEY_EN, 281 qp->fmr_and_reserved_lkey); 282 283 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER, 284 qp->min_rnr_nak_timer); 285 286 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_XRC_FLAG, 287 qed_rdma_is_xrc_qp(qp)); 288 289 p_ramrod = &p_ent->ramrod.roce_create_qp_resp; 290 p_ramrod->flags = cpu_to_le32(flags); 291 p_ramrod->max_ird = qp->max_rd_atomic_resp; 292 p_ramrod->traffic_class = qp->traffic_class_tos; 293 p_ramrod->hop_limit = qp->hop_limit_ttl; 294 p_ramrod->irq_num_pages = qp->irq_num_pages; 295 p_ramrod->p_key = cpu_to_le16(qp->pkey); 296 p_ramrod->flow_label = cpu_to_le32(qp->flow_label); 297 p_ramrod->dst_qp_id = cpu_to_le32(qp->dest_qp); 298 p_ramrod->mtu = cpu_to_le16(qp->mtu); 299 p_ramrod->initial_psn = cpu_to_le32(qp->rq_psn); 300 p_ramrod->pd = cpu_to_le16(qp->pd); 301 p_ramrod->rq_num_pages = cpu_to_le16(qp->rq_num_pages); 302 DMA_REGPAIR_LE(p_ramrod->rq_pbl_addr, qp->rq_pbl_ptr); 303 DMA_REGPAIR_LE(p_ramrod->irq_pbl_addr, qp->irq_phys_addr); 304 qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid); 305 p_ramrod->qp_handle_for_async.hi = qp->qp_handle_async.hi; 306 p_ramrod->qp_handle_for_async.lo = qp->qp_handle_async.lo; 307 p_ramrod->qp_handle_for_cqe.hi = qp->qp_handle.hi; 308 p_ramrod->qp_handle_for_cqe.lo = qp->qp_handle.lo; 309 p_ramrod->cq_cid = cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | 310 qp->rq_cq_id); 311 p_ramrod->xrc_domain = cpu_to_le16(qp->xrcd_id); 312 313 tc = qed_roce_get_qp_tc(p_hwfn, qp); 314 regular_latency_queue = qed_get_cm_pq_idx_ofld_mtc(p_hwfn, tc); 315 low_latency_queue = qed_get_cm_pq_idx_llt_mtc(p_hwfn, tc); 316 DP_VERBOSE(p_hwfn, QED_MSG_SP, 317 "qp icid %u pqs: regular_latency %u low_latency %u\n", 318 qp->icid, regular_latency_queue - CM_TX_PQ_BASE, 319 low_latency_queue - CM_TX_PQ_BASE); 320 p_ramrod->regular_latency_phy_queue = 321 cpu_to_le16(regular_latency_queue); 322 p_ramrod->low_latency_phy_queue = 323 cpu_to_le16(low_latency_queue); 324 325 p_ramrod->dpi = cpu_to_le16(qp->dpi); 326 327 qed_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr); 328 qed_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr); 329 330 p_ramrod->udp_src_port = cpu_to_le16(qp->udp_src_port); 331 p_ramrod->vlan_id = cpu_to_le16(qp->vlan_id); 332 p_ramrod->srq_id.srq_idx = cpu_to_le16(qp->srq_id); 333 p_ramrod->srq_id.opaque_fid = cpu_to_le16(p_hwfn->hw_info.opaque_fid); 334 335 p_ramrod->stats_counter_id = RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + 336 qp->stats_queue; 337 338 rc = qed_spq_post(p_hwfn, p_ent, NULL); 339 if (rc) 340 goto err; 341 342 qp->resp_offloaded = true; 343 qp->cq_prod = 0; 344 345 proto = p_hwfn->p_rdma_info->proto; 346 qed_roce_set_real_cid(p_hwfn, qp->icid - 347 qed_cxt_get_proto_cid_start(p_hwfn, proto)); 348 349 return rc; 350 351 err: 352 DP_NOTICE(p_hwfn, "create responder - failed, rc = %d\n", rc); 353 dma_free_coherent(&p_hwfn->cdev->pdev->dev, 354 qp->irq_num_pages * RDMA_RING_PAGE_SIZE, 355 qp->irq, qp->irq_phys_addr); 356 357 return rc; 358 } 359 360 static int qed_roce_sp_create_requester(struct qed_hwfn *p_hwfn, 361 struct qed_rdma_qp *qp) 362 { 363 struct roce_create_qp_req_ramrod_data *p_ramrod; 364 u16 regular_latency_queue, low_latency_queue; 365 struct qed_sp_init_data init_data; 366 struct qed_spq_entry *p_ent; 367 enum protocol_type proto; 368 u16 flags = 0; 369 int rc; 370 u8 tc; 371 372 if (!qp->has_req) 373 return 0; 374 375 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); 376 377 /* Allocate DMA-able memory for ORQ */ 378 qp->orq_num_pages = 1; 379 qp->orq = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 380 RDMA_RING_PAGE_SIZE, 381 &qp->orq_phys_addr, GFP_KERNEL); 382 if (!qp->orq) { 383 rc = -ENOMEM; 384 DP_NOTICE(p_hwfn, 385 "qed create requester failed: cannot allocate memory (orq). rc = %d\n", 386 rc); 387 return rc; 388 } 389 390 /* Get SPQ entry */ 391 memset(&init_data, 0, sizeof(init_data)); 392 init_data.cid = qp->icid + 1; 393 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 394 init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 395 396 rc = qed_sp_init_request(p_hwfn, &p_ent, 397 ROCE_RAMROD_CREATE_QP, 398 PROTOCOLID_ROCE, &init_data); 399 if (rc) 400 goto err; 401 402 SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_ROCE_FLAVOR, 403 qed_roce_mode_to_flavor(qp->roce_mode)); 404 405 SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_FMR_AND_RESERVED_EN, 406 qp->fmr_and_reserved_lkey); 407 408 SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_SIGNALED_COMP, 409 qp->signal_all); 410 411 SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT, 412 qp->retry_cnt); 413 414 SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_RNR_NAK_CNT, 415 qp->rnr_retry_cnt); 416 417 SET_FIELD(flags, ROCE_CREATE_QP_REQ_RAMROD_DATA_XRC_FLAG, 418 qed_rdma_is_xrc_qp(qp)); 419 420 p_ramrod = &p_ent->ramrod.roce_create_qp_req; 421 p_ramrod->flags = cpu_to_le16(flags); 422 423 SET_FIELD(p_ramrod->flags2, ROCE_CREATE_QP_REQ_RAMROD_DATA_EDPM_MODE, 424 qp->edpm_mode); 425 426 p_ramrod->max_ord = qp->max_rd_atomic_req; 427 p_ramrod->traffic_class = qp->traffic_class_tos; 428 p_ramrod->hop_limit = qp->hop_limit_ttl; 429 p_ramrod->orq_num_pages = qp->orq_num_pages; 430 p_ramrod->p_key = cpu_to_le16(qp->pkey); 431 p_ramrod->flow_label = cpu_to_le32(qp->flow_label); 432 p_ramrod->dst_qp_id = cpu_to_le32(qp->dest_qp); 433 p_ramrod->ack_timeout_val = cpu_to_le32(qp->ack_timeout); 434 p_ramrod->mtu = cpu_to_le16(qp->mtu); 435 p_ramrod->initial_psn = cpu_to_le32(qp->sq_psn); 436 p_ramrod->pd = cpu_to_le16(qp->pd); 437 p_ramrod->sq_num_pages = cpu_to_le16(qp->sq_num_pages); 438 DMA_REGPAIR_LE(p_ramrod->sq_pbl_addr, qp->sq_pbl_ptr); 439 DMA_REGPAIR_LE(p_ramrod->orq_pbl_addr, qp->orq_phys_addr); 440 qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid); 441 p_ramrod->qp_handle_for_async.hi = qp->qp_handle_async.hi; 442 p_ramrod->qp_handle_for_async.lo = qp->qp_handle_async.lo; 443 p_ramrod->qp_handle_for_cqe.hi = qp->qp_handle.hi; 444 p_ramrod->qp_handle_for_cqe.lo = qp->qp_handle.lo; 445 p_ramrod->cq_cid = 446 cpu_to_le32((p_hwfn->hw_info.opaque_fid << 16) | qp->sq_cq_id); 447 448 tc = qed_roce_get_qp_tc(p_hwfn, qp); 449 regular_latency_queue = qed_get_cm_pq_idx_ofld_mtc(p_hwfn, tc); 450 low_latency_queue = qed_get_cm_pq_idx_llt_mtc(p_hwfn, tc); 451 DP_VERBOSE(p_hwfn, QED_MSG_SP, 452 "qp icid %u pqs: regular_latency %u low_latency %u\n", 453 qp->icid, regular_latency_queue - CM_TX_PQ_BASE, 454 low_latency_queue - CM_TX_PQ_BASE); 455 p_ramrod->regular_latency_phy_queue = 456 cpu_to_le16(regular_latency_queue); 457 p_ramrod->low_latency_phy_queue = 458 cpu_to_le16(low_latency_queue); 459 460 p_ramrod->dpi = cpu_to_le16(qp->dpi); 461 462 qed_rdma_set_fw_mac(p_ramrod->remote_mac_addr, qp->remote_mac_addr); 463 qed_rdma_set_fw_mac(p_ramrod->local_mac_addr, qp->local_mac_addr); 464 465 p_ramrod->udp_src_port = cpu_to_le16(qp->udp_src_port); 466 p_ramrod->vlan_id = cpu_to_le16(qp->vlan_id); 467 p_ramrod->stats_counter_id = RESC_START(p_hwfn, QED_RDMA_STATS_QUEUE) + 468 qp->stats_queue; 469 470 rc = qed_spq_post(p_hwfn, p_ent, NULL); 471 if (rc) 472 goto err; 473 474 qp->req_offloaded = true; 475 proto = p_hwfn->p_rdma_info->proto; 476 qed_roce_set_real_cid(p_hwfn, 477 qp->icid + 1 - 478 qed_cxt_get_proto_cid_start(p_hwfn, proto)); 479 480 return rc; 481 482 err: 483 DP_NOTICE(p_hwfn, "Create requested - failed, rc = %d\n", rc); 484 dma_free_coherent(&p_hwfn->cdev->pdev->dev, 485 qp->orq_num_pages * RDMA_RING_PAGE_SIZE, 486 qp->orq, qp->orq_phys_addr); 487 return rc; 488 } 489 490 static int qed_roce_sp_modify_responder(struct qed_hwfn *p_hwfn, 491 struct qed_rdma_qp *qp, 492 bool move_to_err, u32 modify_flags) 493 { 494 struct roce_modify_qp_resp_ramrod_data *p_ramrod; 495 struct qed_sp_init_data init_data; 496 struct qed_spq_entry *p_ent; 497 u16 flags = 0; 498 int rc; 499 500 if (!qp->has_resp) 501 return 0; 502 503 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); 504 505 if (move_to_err && !qp->resp_offloaded) 506 return 0; 507 508 /* Get SPQ entry */ 509 memset(&init_data, 0, sizeof(init_data)); 510 init_data.cid = qp->icid; 511 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 512 init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 513 514 rc = qed_sp_init_request(p_hwfn, &p_ent, 515 ROCE_EVENT_MODIFY_QP, 516 PROTOCOLID_ROCE, &init_data); 517 if (rc) { 518 DP_NOTICE(p_hwfn, "rc = %d\n", rc); 519 return rc; 520 } 521 522 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_MOVE_TO_ERR_FLG, 523 !!move_to_err); 524 525 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_RD_EN, 526 qp->incoming_rdma_read_en); 527 528 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_WR_EN, 529 qp->incoming_rdma_write_en); 530 531 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_ATOMIC_EN, 532 qp->incoming_atomic_en); 533 534 SET_FIELD(flags, ROCE_CREATE_QP_RESP_RAMROD_DATA_E2E_FLOW_CONTROL_EN, 535 qp->e2e_flow_control_en); 536 537 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_RDMA_OPS_EN_FLG, 538 GET_FIELD(modify_flags, 539 QED_RDMA_MODIFY_QP_VALID_RDMA_OPS_EN)); 540 541 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_P_KEY_FLG, 542 GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY)); 543 544 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_ADDRESS_VECTOR_FLG, 545 GET_FIELD(modify_flags, 546 QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)); 547 548 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_MAX_IRD_FLG, 549 GET_FIELD(modify_flags, 550 QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_RESP)); 551 552 SET_FIELD(flags, ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER_FLG, 553 GET_FIELD(modify_flags, 554 QED_ROCE_MODIFY_QP_VALID_MIN_RNR_NAK_TIMER)); 555 556 p_ramrod = &p_ent->ramrod.roce_modify_qp_resp; 557 p_ramrod->flags = cpu_to_le16(flags); 558 559 p_ramrod->fields = 0; 560 SET_FIELD(p_ramrod->fields, 561 ROCE_MODIFY_QP_RESP_RAMROD_DATA_MIN_RNR_NAK_TIMER, 562 qp->min_rnr_nak_timer); 563 564 p_ramrod->max_ird = qp->max_rd_atomic_resp; 565 p_ramrod->traffic_class = qp->traffic_class_tos; 566 p_ramrod->hop_limit = qp->hop_limit_ttl; 567 p_ramrod->p_key = cpu_to_le16(qp->pkey); 568 p_ramrod->flow_label = cpu_to_le32(qp->flow_label); 569 p_ramrod->mtu = cpu_to_le16(qp->mtu); 570 qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid); 571 rc = qed_spq_post(p_hwfn, p_ent, NULL); 572 573 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify responder, rc = %d\n", rc); 574 return rc; 575 } 576 577 static int qed_roce_sp_modify_requester(struct qed_hwfn *p_hwfn, 578 struct qed_rdma_qp *qp, 579 bool move_to_sqd, 580 bool move_to_err, u32 modify_flags) 581 { 582 struct roce_modify_qp_req_ramrod_data *p_ramrod; 583 struct qed_sp_init_data init_data; 584 struct qed_spq_entry *p_ent; 585 u16 flags = 0; 586 int rc; 587 588 if (!qp->has_req) 589 return 0; 590 591 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); 592 593 if (move_to_err && !(qp->req_offloaded)) 594 return 0; 595 596 /* Get SPQ entry */ 597 memset(&init_data, 0, sizeof(init_data)); 598 init_data.cid = qp->icid + 1; 599 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 600 init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 601 602 rc = qed_sp_init_request(p_hwfn, &p_ent, 603 ROCE_EVENT_MODIFY_QP, 604 PROTOCOLID_ROCE, &init_data); 605 if (rc) { 606 DP_NOTICE(p_hwfn, "rc = %d\n", rc); 607 return rc; 608 } 609 610 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_ERR_FLG, 611 !!move_to_err); 612 613 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_MOVE_TO_SQD_FLG, 614 !!move_to_sqd); 615 616 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_EN_SQD_ASYNC_NOTIFY, 617 qp->sqd_async); 618 619 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_P_KEY_FLG, 620 GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_PKEY)); 621 622 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_ADDRESS_VECTOR_FLG, 623 GET_FIELD(modify_flags, 624 QED_ROCE_MODIFY_QP_VALID_ADDRESS_VECTOR)); 625 626 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_MAX_ORD_FLG, 627 GET_FIELD(modify_flags, 628 QED_RDMA_MODIFY_QP_VALID_MAX_RD_ATOMIC_REQ)); 629 630 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT_FLG, 631 GET_FIELD(modify_flags, 632 QED_ROCE_MODIFY_QP_VALID_RNR_RETRY_CNT)); 633 634 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT_FLG, 635 GET_FIELD(modify_flags, QED_ROCE_MODIFY_QP_VALID_RETRY_CNT)); 636 637 SET_FIELD(flags, ROCE_MODIFY_QP_REQ_RAMROD_DATA_ACK_TIMEOUT_FLG, 638 GET_FIELD(modify_flags, 639 QED_ROCE_MODIFY_QP_VALID_ACK_TIMEOUT)); 640 641 p_ramrod = &p_ent->ramrod.roce_modify_qp_req; 642 p_ramrod->flags = cpu_to_le16(flags); 643 644 p_ramrod->fields = 0; 645 SET_FIELD(p_ramrod->fields, 646 ROCE_MODIFY_QP_REQ_RAMROD_DATA_ERR_RETRY_CNT, qp->retry_cnt); 647 SET_FIELD(p_ramrod->fields, ROCE_MODIFY_QP_REQ_RAMROD_DATA_RNR_NAK_CNT, 648 qp->rnr_retry_cnt); 649 650 p_ramrod->max_ord = qp->max_rd_atomic_req; 651 p_ramrod->traffic_class = qp->traffic_class_tos; 652 p_ramrod->hop_limit = qp->hop_limit_ttl; 653 p_ramrod->p_key = cpu_to_le16(qp->pkey); 654 p_ramrod->flow_label = cpu_to_le32(qp->flow_label); 655 p_ramrod->ack_timeout_val = cpu_to_le32(qp->ack_timeout); 656 p_ramrod->mtu = cpu_to_le16(qp->mtu); 657 qed_rdma_copy_gids(qp, p_ramrod->src_gid, p_ramrod->dst_gid); 658 rc = qed_spq_post(p_hwfn, p_ent, NULL); 659 660 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Modify requester, rc = %d\n", rc); 661 return rc; 662 } 663 664 static int qed_roce_sp_destroy_qp_responder(struct qed_hwfn *p_hwfn, 665 struct qed_rdma_qp *qp, 666 u32 *cq_prod) 667 { 668 struct roce_destroy_qp_resp_output_params *p_ramrod_res; 669 struct roce_destroy_qp_resp_ramrod_data *p_ramrod; 670 struct qed_sp_init_data init_data; 671 struct qed_spq_entry *p_ent; 672 dma_addr_t ramrod_res_phys; 673 int rc; 674 675 if (!qp->has_resp) { 676 *cq_prod = 0; 677 return 0; 678 } 679 680 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); 681 *cq_prod = qp->cq_prod; 682 683 if (!qp->resp_offloaded) { 684 /* If a responder was never offload, we need to free the cids 685 * allocated in create_qp as a FW async event will never arrive 686 */ 687 u32 cid; 688 689 cid = qp->icid - 690 qed_cxt_get_proto_cid_start(p_hwfn, 691 p_hwfn->p_rdma_info->proto); 692 qed_roce_free_cid_pair(p_hwfn, (u16)cid); 693 694 return 0; 695 } 696 697 /* Get SPQ entry */ 698 memset(&init_data, 0, sizeof(init_data)); 699 init_data.cid = qp->icid; 700 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 701 init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 702 703 rc = qed_sp_init_request(p_hwfn, &p_ent, 704 ROCE_RAMROD_DESTROY_QP, 705 PROTOCOLID_ROCE, &init_data); 706 if (rc) 707 return rc; 708 709 p_ramrod = &p_ent->ramrod.roce_destroy_qp_resp; 710 711 p_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 712 sizeof(*p_ramrod_res), 713 &ramrod_res_phys, GFP_KERNEL); 714 715 if (!p_ramrod_res) { 716 rc = -ENOMEM; 717 DP_NOTICE(p_hwfn, 718 "qed destroy responder failed: cannot allocate memory (ramrod). rc = %d\n", 719 rc); 720 qed_sp_destroy_request(p_hwfn, p_ent); 721 return rc; 722 } 723 724 DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys); 725 726 rc = qed_spq_post(p_hwfn, p_ent, NULL); 727 if (rc) 728 goto err; 729 730 *cq_prod = le32_to_cpu(p_ramrod_res->cq_prod); 731 qp->cq_prod = *cq_prod; 732 733 /* Free IRQ - only if ramrod succeeded, in case FW is still using it */ 734 dma_free_coherent(&p_hwfn->cdev->pdev->dev, 735 qp->irq_num_pages * RDMA_RING_PAGE_SIZE, 736 qp->irq, qp->irq_phys_addr); 737 738 qp->resp_offloaded = false; 739 740 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroy responder, rc = %d\n", rc); 741 742 err: 743 dma_free_coherent(&p_hwfn->cdev->pdev->dev, 744 sizeof(struct roce_destroy_qp_resp_output_params), 745 p_ramrod_res, ramrod_res_phys); 746 747 return rc; 748 } 749 750 static int qed_roce_sp_destroy_qp_requester(struct qed_hwfn *p_hwfn, 751 struct qed_rdma_qp *qp) 752 { 753 struct roce_destroy_qp_req_output_params *p_ramrod_res; 754 struct roce_destroy_qp_req_ramrod_data *p_ramrod; 755 struct qed_sp_init_data init_data; 756 struct qed_spq_entry *p_ent; 757 dma_addr_t ramrod_res_phys; 758 int rc = -ENOMEM; 759 760 if (!qp->has_req) 761 return 0; 762 763 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "icid = %08x\n", qp->icid); 764 765 if (!qp->req_offloaded) 766 return 0; 767 768 p_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 769 sizeof(*p_ramrod_res), 770 &ramrod_res_phys, GFP_KERNEL); 771 if (!p_ramrod_res) { 772 DP_NOTICE(p_hwfn, 773 "qed destroy requester failed: cannot allocate memory (ramrod)\n"); 774 return rc; 775 } 776 777 /* Get SPQ entry */ 778 memset(&init_data, 0, sizeof(init_data)); 779 init_data.cid = qp->icid + 1; 780 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 781 init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 782 783 rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_DESTROY_QP, 784 PROTOCOLID_ROCE, &init_data); 785 if (rc) 786 goto err; 787 788 p_ramrod = &p_ent->ramrod.roce_destroy_qp_req; 789 DMA_REGPAIR_LE(p_ramrod->output_params_addr, ramrod_res_phys); 790 791 rc = qed_spq_post(p_hwfn, p_ent, NULL); 792 if (rc) 793 goto err; 794 795 /* Free ORQ - only if ramrod succeeded, in case FW is still using it */ 796 dma_free_coherent(&p_hwfn->cdev->pdev->dev, 797 qp->orq_num_pages * RDMA_RING_PAGE_SIZE, 798 qp->orq, qp->orq_phys_addr); 799 800 qp->req_offloaded = false; 801 802 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Destroy requester, rc = %d\n", rc); 803 804 err: 805 dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_ramrod_res), 806 p_ramrod_res, ramrod_res_phys); 807 808 return rc; 809 } 810 811 int qed_roce_query_qp(struct qed_hwfn *p_hwfn, 812 struct qed_rdma_qp *qp, 813 struct qed_rdma_query_qp_out_params *out_params) 814 { 815 struct roce_query_qp_resp_output_params *p_resp_ramrod_res; 816 struct roce_query_qp_req_output_params *p_req_ramrod_res; 817 struct roce_query_qp_resp_ramrod_data *p_resp_ramrod; 818 struct roce_query_qp_req_ramrod_data *p_req_ramrod; 819 struct qed_sp_init_data init_data; 820 dma_addr_t resp_ramrod_res_phys; 821 dma_addr_t req_ramrod_res_phys; 822 struct qed_spq_entry *p_ent; 823 bool rq_err_state; 824 bool sq_err_state; 825 bool sq_draining; 826 int rc = -ENOMEM; 827 828 if ((!(qp->resp_offloaded)) && (!(qp->req_offloaded))) { 829 /* We can't send ramrod to the fw since this qp wasn't offloaded 830 * to the fw yet 831 */ 832 out_params->draining = false; 833 out_params->rq_psn = qp->rq_psn; 834 out_params->sq_psn = qp->sq_psn; 835 out_params->state = qp->cur_state; 836 837 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "No QPs as no offload\n"); 838 return 0; 839 } 840 841 if (!(qp->resp_offloaded)) { 842 DP_NOTICE(p_hwfn, 843 "The responder's qp should be offloaded before requester's\n"); 844 return -EINVAL; 845 } 846 847 /* Send a query responder ramrod to FW to get RQ-PSN and state */ 848 p_resp_ramrod_res = 849 dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 850 sizeof(*p_resp_ramrod_res), 851 &resp_ramrod_res_phys, GFP_KERNEL); 852 if (!p_resp_ramrod_res) { 853 DP_NOTICE(p_hwfn, 854 "qed query qp failed: cannot allocate memory (ramrod)\n"); 855 return rc; 856 } 857 858 /* Get SPQ entry */ 859 memset(&init_data, 0, sizeof(init_data)); 860 init_data.cid = qp->icid; 861 init_data.opaque_fid = p_hwfn->hw_info.opaque_fid; 862 init_data.comp_mode = QED_SPQ_MODE_EBLOCK; 863 rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP, 864 PROTOCOLID_ROCE, &init_data); 865 if (rc) 866 goto err_resp; 867 868 p_resp_ramrod = &p_ent->ramrod.roce_query_qp_resp; 869 DMA_REGPAIR_LE(p_resp_ramrod->output_params_addr, resp_ramrod_res_phys); 870 871 rc = qed_spq_post(p_hwfn, p_ent, NULL); 872 if (rc) 873 goto err_resp; 874 875 out_params->rq_psn = le32_to_cpu(p_resp_ramrod_res->psn); 876 rq_err_state = GET_FIELD(le32_to_cpu(p_resp_ramrod_res->flags), 877 ROCE_QUERY_QP_RESP_OUTPUT_PARAMS_ERROR_FLG); 878 879 dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_resp_ramrod_res), 880 p_resp_ramrod_res, resp_ramrod_res_phys); 881 882 if (!(qp->req_offloaded)) { 883 /* Don't send query qp for the requester */ 884 out_params->sq_psn = qp->sq_psn; 885 out_params->draining = false; 886 887 if (rq_err_state) 888 qp->cur_state = QED_ROCE_QP_STATE_ERR; 889 890 out_params->state = qp->cur_state; 891 892 return 0; 893 } 894 895 /* Send a query requester ramrod to FW to get SQ-PSN and state */ 896 p_req_ramrod_res = dma_alloc_coherent(&p_hwfn->cdev->pdev->dev, 897 sizeof(*p_req_ramrod_res), 898 &req_ramrod_res_phys, 899 GFP_KERNEL); 900 if (!p_req_ramrod_res) { 901 rc = -ENOMEM; 902 DP_NOTICE(p_hwfn, 903 "qed query qp failed: cannot allocate memory (ramrod)\n"); 904 return rc; 905 } 906 907 /* Get SPQ entry */ 908 init_data.cid = qp->icid + 1; 909 rc = qed_sp_init_request(p_hwfn, &p_ent, ROCE_RAMROD_QUERY_QP, 910 PROTOCOLID_ROCE, &init_data); 911 if (rc) 912 goto err_req; 913 914 p_req_ramrod = &p_ent->ramrod.roce_query_qp_req; 915 DMA_REGPAIR_LE(p_req_ramrod->output_params_addr, req_ramrod_res_phys); 916 917 rc = qed_spq_post(p_hwfn, p_ent, NULL); 918 if (rc) 919 goto err_req; 920 921 out_params->sq_psn = le32_to_cpu(p_req_ramrod_res->psn); 922 sq_err_state = GET_FIELD(le32_to_cpu(p_req_ramrod_res->flags), 923 ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_ERR_FLG); 924 sq_draining = 925 GET_FIELD(le32_to_cpu(p_req_ramrod_res->flags), 926 ROCE_QUERY_QP_REQ_OUTPUT_PARAMS_SQ_DRAINING_FLG); 927 928 dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_req_ramrod_res), 929 p_req_ramrod_res, req_ramrod_res_phys); 930 931 out_params->draining = false; 932 933 if (rq_err_state || sq_err_state) 934 qp->cur_state = QED_ROCE_QP_STATE_ERR; 935 else if (sq_draining) 936 out_params->draining = true; 937 out_params->state = qp->cur_state; 938 939 return 0; 940 941 err_req: 942 dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_req_ramrod_res), 943 p_req_ramrod_res, req_ramrod_res_phys); 944 return rc; 945 err_resp: 946 dma_free_coherent(&p_hwfn->cdev->pdev->dev, sizeof(*p_resp_ramrod_res), 947 p_resp_ramrod_res, resp_ramrod_res_phys); 948 return rc; 949 } 950 951 int qed_roce_destroy_qp(struct qed_hwfn *p_hwfn, struct qed_rdma_qp *qp) 952 { 953 u32 cq_prod; 954 int rc; 955 956 /* Destroys the specified QP */ 957 if ((qp->cur_state != QED_ROCE_QP_STATE_RESET) && 958 (qp->cur_state != QED_ROCE_QP_STATE_ERR) && 959 (qp->cur_state != QED_ROCE_QP_STATE_INIT)) { 960 DP_NOTICE(p_hwfn, 961 "QP must be in error, reset or init state before destroying it\n"); 962 return -EINVAL; 963 } 964 965 if (qp->cur_state != QED_ROCE_QP_STATE_RESET) { 966 rc = qed_roce_sp_destroy_qp_responder(p_hwfn, qp, 967 &cq_prod); 968 if (rc) 969 return rc; 970 971 /* Send destroy requester ramrod */ 972 rc = qed_roce_sp_destroy_qp_requester(p_hwfn, qp); 973 if (rc) 974 return rc; 975 } 976 977 return 0; 978 } 979 980 int qed_roce_modify_qp(struct qed_hwfn *p_hwfn, 981 struct qed_rdma_qp *qp, 982 enum qed_roce_qp_state prev_state, 983 struct qed_rdma_modify_qp_in_params *params) 984 { 985 int rc = 0; 986 987 /* Perform additional operations according to the current state and the 988 * next state 989 */ 990 if (((prev_state == QED_ROCE_QP_STATE_INIT) || 991 (prev_state == QED_ROCE_QP_STATE_RESET)) && 992 (qp->cur_state == QED_ROCE_QP_STATE_RTR)) { 993 /* Init->RTR or Reset->RTR */ 994 rc = qed_roce_sp_create_responder(p_hwfn, qp); 995 return rc; 996 } else if ((prev_state == QED_ROCE_QP_STATE_RTR) && 997 (qp->cur_state == QED_ROCE_QP_STATE_RTS)) { 998 /* RTR-> RTS */ 999 rc = qed_roce_sp_create_requester(p_hwfn, qp); 1000 if (rc) 1001 return rc; 1002 1003 /* Send modify responder ramrod */ 1004 rc = qed_roce_sp_modify_responder(p_hwfn, qp, false, 1005 params->modify_flags); 1006 return rc; 1007 } else if ((prev_state == QED_ROCE_QP_STATE_RTS) && 1008 (qp->cur_state == QED_ROCE_QP_STATE_RTS)) { 1009 /* RTS->RTS */ 1010 rc = qed_roce_sp_modify_responder(p_hwfn, qp, false, 1011 params->modify_flags); 1012 if (rc) 1013 return rc; 1014 1015 rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false, 1016 params->modify_flags); 1017 return rc; 1018 } else if ((prev_state == QED_ROCE_QP_STATE_RTS) && 1019 (qp->cur_state == QED_ROCE_QP_STATE_SQD)) { 1020 /* RTS->SQD */ 1021 rc = qed_roce_sp_modify_requester(p_hwfn, qp, true, false, 1022 params->modify_flags); 1023 return rc; 1024 } else if ((prev_state == QED_ROCE_QP_STATE_SQD) && 1025 (qp->cur_state == QED_ROCE_QP_STATE_SQD)) { 1026 /* SQD->SQD */ 1027 rc = qed_roce_sp_modify_responder(p_hwfn, qp, false, 1028 params->modify_flags); 1029 if (rc) 1030 return rc; 1031 1032 rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false, 1033 params->modify_flags); 1034 return rc; 1035 } else if ((prev_state == QED_ROCE_QP_STATE_SQD) && 1036 (qp->cur_state == QED_ROCE_QP_STATE_RTS)) { 1037 /* SQD->RTS */ 1038 rc = qed_roce_sp_modify_responder(p_hwfn, qp, false, 1039 params->modify_flags); 1040 if (rc) 1041 return rc; 1042 1043 rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, false, 1044 params->modify_flags); 1045 1046 return rc; 1047 } else if (qp->cur_state == QED_ROCE_QP_STATE_ERR) { 1048 /* ->ERR */ 1049 rc = qed_roce_sp_modify_responder(p_hwfn, qp, true, 1050 params->modify_flags); 1051 if (rc) 1052 return rc; 1053 1054 rc = qed_roce_sp_modify_requester(p_hwfn, qp, false, true, 1055 params->modify_flags); 1056 return rc; 1057 } else if (qp->cur_state == QED_ROCE_QP_STATE_RESET) { 1058 /* Any state -> RESET */ 1059 u32 cq_prod; 1060 1061 /* Send destroy responder ramrod */ 1062 rc = qed_roce_sp_destroy_qp_responder(p_hwfn, 1063 qp, 1064 &cq_prod); 1065 1066 if (rc) 1067 return rc; 1068 1069 qp->cq_prod = cq_prod; 1070 1071 rc = qed_roce_sp_destroy_qp_requester(p_hwfn, qp); 1072 } else { 1073 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "0\n"); 1074 } 1075 1076 return rc; 1077 } 1078 1079 static void qed_roce_free_real_icid(struct qed_hwfn *p_hwfn, u16 icid) 1080 { 1081 struct qed_rdma_info *p_rdma_info = p_hwfn->p_rdma_info; 1082 u32 start_cid, cid, xcid; 1083 1084 /* an even icid belongs to a responder while an odd icid belongs to a 1085 * requester. The 'cid' received as an input can be either. We calculate 1086 * the "partner" icid and call it xcid. Only if both are free then the 1087 * "cid" map can be cleared. 1088 */ 1089 start_cid = qed_cxt_get_proto_cid_start(p_hwfn, p_rdma_info->proto); 1090 cid = icid - start_cid; 1091 xcid = cid ^ 1; 1092 1093 spin_lock_bh(&p_rdma_info->lock); 1094 1095 qed_bmap_release_id(p_hwfn, &p_rdma_info->real_cid_map, cid); 1096 if (qed_bmap_test_id(p_hwfn, &p_rdma_info->real_cid_map, xcid) == 0) { 1097 qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, cid); 1098 qed_bmap_release_id(p_hwfn, &p_rdma_info->cid_map, xcid); 1099 } 1100 1101 spin_unlock_bh(&p_hwfn->p_rdma_info->lock); 1102 } 1103 1104 void qed_roce_dpm_dcbx(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 1105 { 1106 u8 val; 1107 1108 /* if any QPs are already active, we want to disable DPM, since their 1109 * context information contains information from before the latest DCBx 1110 * update. Otherwise enable it. 1111 */ 1112 val = qed_rdma_allocated_qps(p_hwfn) ? true : false; 1113 p_hwfn->dcbx_no_edpm = (u8)val; 1114 1115 qed_rdma_dpm_conf(p_hwfn, p_ptt); 1116 } 1117 1118 int qed_roce_setup(struct qed_hwfn *p_hwfn) 1119 { 1120 return qed_spq_register_async_cb(p_hwfn, PROTOCOLID_ROCE, 1121 qed_roce_async_event); 1122 } 1123 1124 int qed_roce_init_hw(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt) 1125 { 1126 u32 ll2_ethertype_en; 1127 1128 qed_wr(p_hwfn, p_ptt, PRS_REG_ROCE_DEST_QP_MAX_PF, 0); 1129 1130 p_hwfn->rdma_prs_search_reg = PRS_REG_SEARCH_ROCE; 1131 1132 ll2_ethertype_en = qed_rd(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN); 1133 qed_wr(p_hwfn, p_ptt, PRS_REG_LIGHT_L2_ETHERTYPE_EN, 1134 (ll2_ethertype_en | 0x01)); 1135 1136 if (qed_cxt_get_proto_cid_start(p_hwfn, PROTOCOLID_ROCE) % 2) { 1137 DP_NOTICE(p_hwfn, "The first RoCE's cid should be even\n"); 1138 return -EINVAL; 1139 } 1140 1141 DP_VERBOSE(p_hwfn, QED_MSG_RDMA, "Initializing HW - Done\n"); 1142 return 0; 1143 } 1144