1 /*- 2 * SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB 3 * 4 * Copyright (c) 2018 - 2022 Intel Corporation 5 * 6 * This software is available to you under a choice of one of two 7 * licenses. You may choose to be licensed under the terms of the GNU 8 * General Public License (GPL) Version 2, available from the file 9 * COPYING in the main directory of this source tree, or the 10 * OpenFabrics.org BSD license below: 11 * 12 * Redistribution and use in source and binary forms, with or 13 * without modification, are permitted provided that the following 14 * conditions are met: 15 * 16 * - Redistributions of source code must retain the above 17 * copyright notice, this list of conditions and the following 18 * disclaimer. 19 * 20 * - Redistributions in binary form must reproduce the above 21 * copyright notice, this list of conditions and the following 22 * disclaimer in the documentation and/or other materials 23 * provided with the distribution. 24 * 25 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 26 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 27 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 28 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 29 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 30 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 31 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 32 * SOFTWARE. 33 */ 34 /*$FreeBSD$*/ 35 36 #include "irdma_main.h" 37 38 void 39 irdma_get_dev_fw_str(struct ib_device *dev, 40 char *str, 41 size_t str_len) 42 { 43 struct irdma_device *iwdev = to_iwdev(dev); 44 45 snprintf(str, str_len, "%u.%u", 46 irdma_fw_major_ver(&iwdev->rf->sc_dev), 47 irdma_fw_minor_ver(&iwdev->rf->sc_dev)); 48 } 49 50 int 51 irdma_add_gid(struct ib_device *device, 52 u8 port_num, 53 unsigned int index, 54 const union ib_gid *gid, 55 const struct ib_gid_attr *attr, 56 void **context) 57 { 58 return 0; 59 } 60 61 int 62 irdma_del_gid(struct ib_device *device, 63 u8 port_num, 64 unsigned int index, 65 void **context) 66 { 67 return 0; 68 } 69 70 /** 71 * irdma_alloc_mr - register stag for fast memory registration 72 * @pd: ibpd pointer 73 * @mr_type: memory for stag registrion 74 * @max_num_sg: man number of pages 75 * @udata: user data 76 */ 77 struct ib_mr * 78 irdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, 79 u32 max_num_sg, struct ib_udata *udata) 80 { 81 struct irdma_device *iwdev = to_iwdev(pd->device); 82 struct irdma_pble_alloc *palloc; 83 struct irdma_pbl *iwpbl; 84 struct irdma_mr *iwmr; 85 int status; 86 u32 stag; 87 int err_code = -ENOMEM; 88 89 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); 90 if (!iwmr) 91 return ERR_PTR(-ENOMEM); 92 93 stag = irdma_create_stag(iwdev); 94 if (!stag) { 95 err_code = -ENOMEM; 96 goto err; 97 } 98 99 iwmr->stag = stag; 100 iwmr->ibmr.rkey = stag; 101 iwmr->ibmr.lkey = stag; 102 iwmr->ibmr.pd = pd; 103 iwmr->ibmr.device = pd->device; 104 iwpbl = &iwmr->iwpbl; 105 iwpbl->iwmr = iwmr; 106 iwmr->type = IRDMA_MEMREG_TYPE_MEM; 107 palloc = &iwpbl->pble_alloc; 108 iwmr->page_cnt = max_num_sg; 109 status = irdma_get_pble(iwdev->rf->pble_rsrc, palloc, iwmr->page_cnt, 110 true); 111 if (status) 112 goto err_get_pble; 113 114 err_code = irdma_hw_alloc_stag(iwdev, iwmr); 115 if (err_code) 116 goto err_alloc_stag; 117 118 iwpbl->pbl_allocated = true; 119 120 return &iwmr->ibmr; 121 err_alloc_stag: 122 irdma_free_pble(iwdev->rf->pble_rsrc, palloc); 123 err_get_pble: 124 irdma_free_stag(iwdev, stag); 125 err: 126 kfree(iwmr); 127 128 return ERR_PTR(err_code); 129 } 130 131 /** 132 * irdma_alloc_ucontext - Allocate the user context data structure 133 * @uctx: context 134 * @udata: user data 135 * 136 * This keeps track of all objects associated with a particular 137 * user-mode client. 138 */ 139 int 140 irdma_alloc_ucontext(struct ib_ucontext *uctx, struct ib_udata *udata) 141 { 142 struct ib_device *ibdev = uctx->device; 143 struct irdma_device *iwdev = to_iwdev(ibdev); 144 struct irdma_alloc_ucontext_req req; 145 struct irdma_alloc_ucontext_resp uresp = {0}; 146 struct irdma_ucontext *ucontext = to_ucontext(uctx); 147 struct irdma_uk_attrs *uk_attrs; 148 149 if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) 150 return -EINVAL; 151 152 if (req.userspace_ver < 4 || req.userspace_ver > IRDMA_ABI_VER) 153 goto ver_error; 154 155 ucontext->iwdev = iwdev; 156 ucontext->abi_ver = req.userspace_ver; 157 158 uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs; 159 /* GEN_1 support for libi40iw */ 160 if (udata->outlen < sizeof(uresp)) { 161 if (uk_attrs->hw_rev != IRDMA_GEN_1) 162 return -EOPNOTSUPP; 163 164 ucontext->legacy_mode = true; 165 uresp.max_qps = iwdev->rf->max_qp; 166 uresp.max_pds = iwdev->rf->sc_dev.hw_attrs.max_hw_pds; 167 uresp.wq_size = iwdev->rf->sc_dev.hw_attrs.max_qp_wr * 2; 168 uresp.kernel_ver = req.userspace_ver; 169 if (ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen))) 170 return -EFAULT; 171 } else { 172 u64 bar_off = 173 (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET]; 174 ucontext->db_mmap_entry = 175 irdma_user_mmap_entry_insert(ucontext, bar_off, 176 IRDMA_MMAP_IO_NC, 177 &uresp.db_mmap_key); 178 if (!ucontext->db_mmap_entry) { 179 return -ENOMEM; 180 } 181 uresp.kernel_ver = IRDMA_ABI_VER; 182 uresp.feature_flags = uk_attrs->feature_flags; 183 uresp.max_hw_wq_frags = uk_attrs->max_hw_wq_frags; 184 uresp.max_hw_read_sges = uk_attrs->max_hw_read_sges; 185 uresp.max_hw_inline = uk_attrs->max_hw_inline; 186 uresp.max_hw_rq_quanta = uk_attrs->max_hw_rq_quanta; 187 uresp.max_hw_wq_quanta = uk_attrs->max_hw_wq_quanta; 188 uresp.max_hw_sq_chunk = uk_attrs->max_hw_sq_chunk; 189 uresp.max_hw_cq_size = uk_attrs->max_hw_cq_size; 190 uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size; 191 uresp.hw_rev = uk_attrs->hw_rev; 192 if (ib_copy_to_udata(udata, &uresp, 193 min(sizeof(uresp), udata->outlen))) { 194 rdma_user_mmap_entry_remove(ucontext->db_mmap_entry); 195 return -EFAULT; 196 } 197 } 198 199 INIT_LIST_HEAD(&ucontext->cq_reg_mem_list); 200 spin_lock_init(&ucontext->cq_reg_mem_list_lock); 201 INIT_LIST_HEAD(&ucontext->qp_reg_mem_list); 202 spin_lock_init(&ucontext->qp_reg_mem_list_lock); 203 INIT_LIST_HEAD(&ucontext->vma_list); 204 mutex_init(&ucontext->vma_list_mutex); 205 206 return 0; 207 208 ver_error: 209 irdma_dev_err(&iwdev->rf->sc_dev, 210 "Invalid userspace driver version detected. Detected version %d, should be %d\n", 211 req.userspace_ver, IRDMA_ABI_VER); 212 return -EINVAL; 213 } 214 215 /** 216 * irdma_dealloc_ucontext - deallocate the user context data structure 217 * @context: user context created during alloc 218 */ 219 void 220 irdma_dealloc_ucontext(struct ib_ucontext *context) 221 { 222 struct irdma_ucontext *ucontext = to_ucontext(context); 223 224 rdma_user_mmap_entry_remove(ucontext->db_mmap_entry); 225 226 return; 227 } 228 229 /** 230 * irdma_alloc_pd - allocate protection domain 231 * @pd: protection domain 232 * @udata: user data 233 */ 234 int 235 irdma_alloc_pd(struct ib_pd *pd, struct ib_udata *udata) 236 { 237 struct irdma_pd *iwpd = to_iwpd(pd); 238 struct irdma_device *iwdev = to_iwdev(pd->device); 239 struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; 240 struct irdma_pci_f *rf = iwdev->rf; 241 struct irdma_alloc_pd_resp uresp = {0}; 242 struct irdma_sc_pd *sc_pd; 243 u32 pd_id = 0; 244 int err; 245 246 err = irdma_alloc_rsrc(rf, rf->allocated_pds, rf->max_pd, &pd_id, 247 &rf->next_pd); 248 if (err) 249 return err; 250 251 sc_pd = &iwpd->sc_pd; 252 if (udata) { 253 struct irdma_ucontext *ucontext = 254 rdma_udata_to_drv_context(udata, struct irdma_ucontext, 255 ibucontext); 256 257 irdma_sc_pd_init(dev, sc_pd, pd_id, ucontext->abi_ver); 258 uresp.pd_id = pd_id; 259 if (ib_copy_to_udata(udata, &uresp, 260 min(sizeof(uresp), udata->outlen))) { 261 err = -EFAULT; 262 goto error; 263 } 264 } else { 265 irdma_sc_pd_init(dev, sc_pd, pd_id, IRDMA_ABI_VER); 266 } 267 268 return 0; 269 270 error: 271 272 irdma_free_rsrc(rf, rf->allocated_pds, pd_id); 273 274 return err; 275 } 276 277 void 278 irdma_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) 279 { 280 struct irdma_pd *iwpd = to_iwpd(ibpd); 281 struct irdma_device *iwdev = to_iwdev(ibpd->device); 282 283 irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_pds, iwpd->sc_pd.pd_id); 284 } 285 286 static void 287 irdma_fill_ah_info(struct irdma_ah_info *ah_info, 288 const struct ib_gid_attr *sgid_attr, 289 struct sockaddr *sgid_addr, struct sockaddr *dgid_addr, 290 u8 *dmac, u8 net_type) 291 { 292 if (net_type == RDMA_NETWORK_IPV4) { 293 ah_info->ipv4_valid = true; 294 ah_info->dest_ip_addr[0] = 295 ntohl(((struct sockaddr_in *)dgid_addr)->sin_addr.s_addr); 296 ah_info->src_ip_addr[0] = 297 ntohl(((struct sockaddr_in *)sgid_addr)->sin_addr.s_addr); 298 ah_info->do_lpbk = irdma_ipv4_is_lpb(ah_info->src_ip_addr[0], 299 ah_info->dest_ip_addr[0]); 300 if (ipv4_is_multicast(((struct sockaddr_in *)dgid_addr)->sin_addr.s_addr)) { 301 irdma_mcast_mac_v4(ah_info->dest_ip_addr, dmac); 302 } 303 } else { 304 irdma_copy_ip_ntohl(ah_info->dest_ip_addr, 305 ((struct sockaddr_in6 *)dgid_addr)->sin6_addr.__u6_addr.__u6_addr32); 306 irdma_copy_ip_ntohl(ah_info->src_ip_addr, 307 ((struct sockaddr_in6 *)sgid_addr)->sin6_addr.__u6_addr.__u6_addr32); 308 ah_info->do_lpbk = irdma_ipv6_is_lpb(ah_info->src_ip_addr, 309 ah_info->dest_ip_addr); 310 if (rdma_is_multicast_addr(&((struct sockaddr_in6 *)dgid_addr)->sin6_addr)) { 311 irdma_mcast_mac_v6(ah_info->dest_ip_addr, dmac); 312 } 313 } 314 } 315 316 static int 317 irdma_create_ah_vlan_tag(struct irdma_device *iwdev, 318 struct irdma_ah_info *ah_info, 319 const struct ib_gid_attr *sgid_attr, 320 u8 *dmac) 321 { 322 if (sgid_attr->ndev && is_vlan_dev(sgid_attr->ndev)) 323 ah_info->vlan_tag = vlan_dev_vlan_id(sgid_attr->ndev); 324 else 325 ah_info->vlan_tag = VLAN_N_VID; 326 327 ah_info->dst_arpindex = irdma_add_arp(iwdev->rf, ah_info->dest_ip_addr, dmac); 328 329 if (ah_info->dst_arpindex == -1) 330 return -EINVAL; 331 332 if (ah_info->vlan_tag >= VLAN_N_VID && iwdev->dcb_vlan_mode) 333 ah_info->vlan_tag = 0; 334 335 if (ah_info->vlan_tag < VLAN_N_VID) { 336 ah_info->insert_vlan_tag = true; 337 ah_info->vlan_tag |= 338 rt_tos2priority(ah_info->tc_tos) << VLAN_PRIO_SHIFT; 339 } 340 return 0; 341 } 342 343 static int 344 irdma_create_ah_wait(struct irdma_pci_f *rf, 345 struct irdma_sc_ah *sc_ah, bool sleep) 346 { 347 if (!sleep) { 348 int cnt = CQP_COMPL_WAIT_TIME_MS * CQP_TIMEOUT_THRESHOLD; 349 350 do { 351 irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq); 352 mdelay(1); 353 } while (!sc_ah->ah_info.ah_valid && --cnt); 354 355 if (!cnt) 356 return -ETIMEDOUT; 357 } 358 return 0; 359 } 360 361 /** 362 * irdma_create_ah - create address handle 363 * @ib_ah: ptr to AH 364 * @attr: address handle attributes 365 * @flags: AH flags to wait 366 * @udata: user data 367 * 368 * returns 0 on success, error otherwise 369 */ 370 int 371 irdma_create_ah(struct ib_ah *ib_ah, 372 struct ib_ah_attr *attr, u32 flags, 373 struct ib_udata *udata) 374 { 375 struct irdma_pd *pd = to_iwpd(ib_ah->pd); 376 struct irdma_ah *ah = container_of(ib_ah, struct irdma_ah, ibah); 377 struct irdma_device *iwdev = to_iwdev(ib_ah->pd->device); 378 union ib_gid sgid; 379 struct ib_gid_attr sgid_attr; 380 struct irdma_pci_f *rf = iwdev->rf; 381 struct irdma_sc_ah *sc_ah; 382 u32 ah_id = 0; 383 struct irdma_ah_info *ah_info; 384 struct irdma_create_ah_resp uresp; 385 union { 386 struct sockaddr saddr; 387 struct sockaddr_in saddr_in; 388 struct sockaddr_in6 saddr_in6; 389 } sgid_addr, dgid_addr; 390 int err; 391 u8 dmac[ETH_ALEN]; 392 bool sleep; 393 394 err = irdma_alloc_rsrc(rf, rf->allocated_ahs, 395 rf->max_ah, &ah_id, &rf->next_ah); 396 397 if (err) 398 return err; 399 400 ah->pd = pd; 401 sc_ah = &ah->sc_ah; 402 sc_ah->ah_info.ah_idx = ah_id; 403 sc_ah->ah_info.vsi = &iwdev->vsi; 404 irdma_sc_init_ah(&rf->sc_dev, sc_ah); 405 ah->sgid_index = attr->grh.sgid_index; 406 memcpy(&ah->dgid, &attr->grh.dgid, sizeof(ah->dgid)); 407 rcu_read_lock(); 408 err = ib_get_cached_gid(&iwdev->ibdev, attr->port_num, 409 attr->grh.sgid_index, &sgid, &sgid_attr); 410 rcu_read_unlock(); 411 if (err) { 412 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 413 "GID lookup at idx=%d with port=%d failed\n", 414 attr->grh.sgid_index, attr->port_num); 415 err = -EINVAL; 416 goto error; 417 } 418 rdma_gid2ip((struct sockaddr *)&sgid_addr, &sgid); 419 rdma_gid2ip((struct sockaddr *)&dgid_addr, &attr->grh.dgid); 420 ah->av.attrs = *attr; 421 ah->av.net_type = kc_rdma_gid_attr_network_type(sgid_attr, 422 sgid_attr.gid_type, 423 &sgid); 424 425 if (sgid_attr.ndev) 426 dev_put(sgid_attr.ndev); 427 428 ah->av.sgid_addr.saddr = sgid_addr.saddr; 429 ah->av.dgid_addr.saddr = dgid_addr.saddr; 430 ah_info = &sc_ah->ah_info; 431 ah_info->ah_idx = ah_id; 432 ah_info->pd_idx = pd->sc_pd.pd_id; 433 ether_addr_copy(ah_info->mac_addr, IF_LLADDR(iwdev->netdev)); 434 435 if (attr->ah_flags & IB_AH_GRH) { 436 ah_info->flow_label = attr->grh.flow_label; 437 ah_info->hop_ttl = attr->grh.hop_limit; 438 ah_info->tc_tos = attr->grh.traffic_class; 439 } 440 441 ether_addr_copy(dmac, attr->dmac); 442 443 irdma_fill_ah_info(ah_info, &sgid_attr, &sgid_addr.saddr, &dgid_addr.saddr, 444 dmac, ah->av.net_type); 445 446 err = irdma_create_ah_vlan_tag(iwdev, ah_info, &sgid_attr, dmac); 447 if (err) 448 goto error; 449 450 sleep = flags & RDMA_CREATE_AH_SLEEPABLE; 451 452 err = irdma_ah_cqp_op(iwdev->rf, sc_ah, IRDMA_OP_AH_CREATE, 453 sleep, irdma_gsi_ud_qp_ah_cb, sc_ah); 454 if (err) { 455 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 456 "CQP-OP Create AH fail"); 457 goto error; 458 } 459 460 err = irdma_create_ah_wait(rf, sc_ah, sleep); 461 if (err) { 462 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 463 "CQP create AH timed out"); 464 goto error; 465 } 466 467 if (udata) { 468 uresp.ah_id = ah->sc_ah.ah_info.ah_idx; 469 err = ib_copy_to_udata(udata, &uresp, sizeof(uresp)); 470 } 471 return 0; 472 error: 473 irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah_id); 474 return err; 475 } 476 477 void 478 irdma_ether_copy(u8 *dmac, struct ib_ah_attr *attr) 479 { 480 ether_addr_copy(dmac, attr->dmac); 481 } 482 483 int 484 irdma_create_ah_stub(struct ib_ah *ib_ah, 485 struct ib_ah_attr *attr, u32 flags, 486 struct ib_udata *udata) 487 { 488 return -ENOSYS; 489 } 490 491 void 492 irdma_destroy_ah_stub(struct ib_ah *ibah, u32 flags) 493 { 494 return; 495 } 496 497 /** 498 * irdma_free_qp_rsrc - free up memory resources for qp 499 * @iwqp: qp ptr (user or kernel) 500 */ 501 void 502 irdma_free_qp_rsrc(struct irdma_qp *iwqp) 503 { 504 struct irdma_device *iwdev = iwqp->iwdev; 505 struct irdma_pci_f *rf = iwdev->rf; 506 u32 qp_num = iwqp->ibqp.qp_num; 507 508 irdma_ieq_cleanup_qp(iwdev->vsi.ieq, &iwqp->sc_qp); 509 irdma_dealloc_push_page(rf, &iwqp->sc_qp); 510 if (iwqp->sc_qp.vsi) { 511 irdma_qp_rem_qos(&iwqp->sc_qp); 512 iwqp->sc_qp.dev->ws_remove(iwqp->sc_qp.vsi, 513 iwqp->sc_qp.user_pri); 514 } 515 516 if (qp_num > 2) 517 irdma_free_rsrc(rf, rf->allocated_qps, qp_num); 518 irdma_free_dma_mem(rf->sc_dev.hw, &iwqp->q2_ctx_mem); 519 irdma_free_dma_mem(rf->sc_dev.hw, &iwqp->kqp.dma_mem); 520 kfree(iwqp->kqp.sig_trk_mem); 521 iwqp->kqp.sig_trk_mem = NULL; 522 kfree(iwqp->kqp.sq_wrid_mem); 523 kfree(iwqp->kqp.rq_wrid_mem); 524 kfree(iwqp->sg_list); 525 kfree(iwqp); 526 } 527 528 /** 529 * irdma_create_qp - create qp 530 * @ibpd: ptr of pd 531 * @init_attr: attributes for qp 532 * @udata: user data for create qp 533 */ 534 struct ib_qp * 535 irdma_create_qp(struct ib_pd *ibpd, 536 struct ib_qp_init_attr *init_attr, 537 struct ib_udata *udata) 538 { 539 struct irdma_pd *iwpd = to_iwpd(ibpd); 540 struct irdma_device *iwdev = to_iwdev(ibpd->device); 541 struct irdma_pci_f *rf = iwdev->rf; 542 struct irdma_qp *iwqp; 543 struct irdma_create_qp_req req; 544 struct irdma_create_qp_resp uresp = {0}; 545 u32 qp_num = 0; 546 int ret; 547 int err_code; 548 int sq_size; 549 int rq_size; 550 struct irdma_sc_qp *qp; 551 struct irdma_sc_dev *dev = &rf->sc_dev; 552 struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs; 553 struct irdma_qp_init_info init_info = {{0}}; 554 struct irdma_qp_host_ctx_info *ctx_info; 555 unsigned long flags; 556 557 err_code = irdma_validate_qp_attrs(init_attr, iwdev); 558 if (err_code) 559 return ERR_PTR(err_code); 560 561 sq_size = init_attr->cap.max_send_wr; 562 rq_size = init_attr->cap.max_recv_wr; 563 564 init_info.vsi = &iwdev->vsi; 565 init_info.qp_uk_init_info.uk_attrs = uk_attrs; 566 init_info.qp_uk_init_info.sq_size = sq_size; 567 init_info.qp_uk_init_info.rq_size = rq_size; 568 init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge; 569 init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge; 570 init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data; 571 572 iwqp = kzalloc(sizeof(*iwqp), GFP_KERNEL); 573 if (!iwqp) 574 return ERR_PTR(-ENOMEM); 575 576 iwqp->sg_list = kcalloc(uk_attrs->max_hw_wq_frags, sizeof(*iwqp->sg_list), 577 GFP_KERNEL); 578 if (!iwqp->sg_list) { 579 kfree(iwqp); 580 return ERR_PTR(-ENOMEM); 581 } 582 583 qp = &iwqp->sc_qp; 584 qp->qp_uk.back_qp = iwqp; 585 qp->qp_uk.lock = &iwqp->lock; 586 qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX; 587 588 iwqp->iwdev = iwdev; 589 iwqp->q2_ctx_mem.size = IRDMA_Q2_BUF_SIZE + IRDMA_QP_CTX_SIZE; 590 iwqp->q2_ctx_mem.va = irdma_allocate_dma_mem(dev->hw, &iwqp->q2_ctx_mem, 591 iwqp->q2_ctx_mem.size, 592 256); 593 if (!iwqp->q2_ctx_mem.va) { 594 kfree(iwqp->sg_list); 595 kfree(iwqp); 596 return ERR_PTR(-ENOMEM); 597 } 598 599 init_info.q2 = iwqp->q2_ctx_mem.va; 600 init_info.q2_pa = iwqp->q2_ctx_mem.pa; 601 init_info.host_ctx = (__le64 *) (init_info.q2 + IRDMA_Q2_BUF_SIZE); 602 init_info.host_ctx_pa = init_info.q2_pa + IRDMA_Q2_BUF_SIZE; 603 604 if (init_attr->qp_type == IB_QPT_GSI) 605 qp_num = 1; 606 else 607 err_code = irdma_alloc_rsrc(rf, rf->allocated_qps, rf->max_qp, 608 &qp_num, &rf->next_qp); 609 if (err_code) 610 goto error; 611 612 iwqp->iwpd = iwpd; 613 iwqp->ibqp.qp_num = qp_num; 614 qp = &iwqp->sc_qp; 615 iwqp->iwscq = to_iwcq(init_attr->send_cq); 616 iwqp->iwrcq = to_iwcq(init_attr->recv_cq); 617 iwqp->host_ctx.va = init_info.host_ctx; 618 iwqp->host_ctx.pa = init_info.host_ctx_pa; 619 iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE; 620 621 init_info.pd = &iwpd->sc_pd; 622 init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num; 623 if (!rdma_protocol_roce(&iwdev->ibdev, 1)) 624 init_info.qp_uk_init_info.first_sq_wq = 1; 625 iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp; 626 init_waitqueue_head(&iwqp->waitq); 627 init_waitqueue_head(&iwqp->mod_qp_waitq); 628 629 if (udata) { 630 err_code = ib_copy_from_udata(&req, udata, 631 min(sizeof(req), udata->inlen)); 632 if (err_code) { 633 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 634 "ib_copy_from_data fail\n"); 635 goto error; 636 } 637 638 iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx; 639 iwqp->user_mode = 1; 640 if (req.user_wqe_bufs) { 641 struct irdma_ucontext *ucontext = to_ucontext(ibpd->uobject->context); 642 643 init_info.qp_uk_init_info.legacy_mode = ucontext->legacy_mode; 644 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); 645 iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs, 646 &ucontext->qp_reg_mem_list); 647 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); 648 649 if (!iwqp->iwpbl) { 650 err_code = -ENODATA; 651 irdma_debug(iwdev_to_idev(iwdev), 652 IRDMA_DEBUG_VERBS, 653 "no pbl info\n"); 654 goto error; 655 } 656 } 657 init_info.qp_uk_init_info.abi_ver = iwpd->sc_pd.abi_ver; 658 irdma_setup_virt_qp(iwdev, iwqp, &init_info); 659 } else { 660 INIT_DELAYED_WORK(&iwqp->dwork_flush, irdma_flush_worker); 661 init_info.qp_uk_init_info.abi_ver = IRDMA_ABI_VER; 662 err_code = irdma_setup_kmode_qp(iwdev, iwqp, &init_info, init_attr); 663 } 664 665 if (err_code) { 666 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 667 "setup qp failed\n"); 668 goto error; 669 } 670 671 if (rdma_protocol_roce(&iwdev->ibdev, 1)) { 672 if (init_attr->qp_type == IB_QPT_RC) { 673 init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_RC; 674 init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM | 675 IRDMA_WRITE_WITH_IMM | 676 IRDMA_ROCE; 677 } else { 678 init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_UD; 679 init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM | 680 IRDMA_ROCE; 681 } 682 } else { 683 init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_IWARP; 684 init_info.qp_uk_init_info.qp_caps = IRDMA_WRITE_WITH_IMM; 685 } 686 687 ret = irdma_sc_qp_init(qp, &init_info); 688 if (ret) { 689 err_code = -EPROTO; 690 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 691 "qp_init fail\n"); 692 goto error; 693 } 694 695 ctx_info = &iwqp->ctx_info; 696 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; 697 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; 698 699 if (rdma_protocol_roce(&iwdev->ibdev, 1)) 700 irdma_roce_fill_and_set_qpctx_info(iwqp, ctx_info); 701 else 702 irdma_iw_fill_and_set_qpctx_info(iwqp, ctx_info); 703 704 err_code = irdma_cqp_create_qp_cmd(iwqp); 705 if (err_code) 706 goto error; 707 708 atomic_set(&iwqp->refcnt, 1); 709 spin_lock_init(&iwqp->lock); 710 spin_lock_init(&iwqp->sc_qp.pfpdu.lock); 711 iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0; 712 rf->qp_table[qp_num] = iwqp; 713 iwqp->max_send_wr = sq_size; 714 iwqp->max_recv_wr = rq_size; 715 716 if (rdma_protocol_roce(&iwdev->ibdev, 1)) { 717 if (dev->ws_add(&iwdev->vsi, 0)) { 718 irdma_cqp_qp_destroy_cmd(&rf->sc_dev, &iwqp->sc_qp); 719 err_code = -EINVAL; 720 goto error; 721 } 722 723 irdma_qp_add_qos(&iwqp->sc_qp); 724 } 725 726 if (udata) { 727 /* GEN_1 legacy support with libi40iw does not have expanded uresp struct */ 728 if (udata->outlen < sizeof(uresp)) { 729 uresp.lsmm = 1; 730 uresp.push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX_GEN_1; 731 } else { 732 if (rdma_protocol_iwarp(&iwdev->ibdev, 1)) 733 uresp.lsmm = 1; 734 } 735 uresp.actual_sq_size = sq_size; 736 uresp.actual_rq_size = rq_size; 737 uresp.qp_id = qp_num; 738 uresp.qp_caps = qp->qp_uk.qp_caps; 739 740 err_code = ib_copy_to_udata(udata, &uresp, 741 min(sizeof(uresp), udata->outlen)); 742 if (err_code) { 743 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 744 "copy_to_udata failed\n"); 745 kc_irdma_destroy_qp(&iwqp->ibqp, udata); 746 return ERR_PTR(err_code); 747 } 748 } 749 750 init_completion(&iwqp->free_qp); 751 return &iwqp->ibqp; 752 753 error: 754 irdma_free_qp_rsrc(iwqp); 755 756 return ERR_PTR(err_code); 757 } 758 759 /** 760 * irdma_destroy_qp - destroy qp 761 * @ibqp: qp's ib pointer also to get to device's qp address 762 * @udata: user data 763 */ 764 int 765 irdma_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata) 766 { 767 struct irdma_qp *iwqp = to_iwqp(ibqp); 768 struct irdma_device *iwdev = iwqp->iwdev; 769 770 if (iwqp->sc_qp.qp_uk.destroy_pending) 771 goto free_rsrc; 772 iwqp->sc_qp.qp_uk.destroy_pending = true; 773 if (iwqp->iwarp_state == IRDMA_QP_STATE_RTS) 774 irdma_modify_qp_to_err(&iwqp->sc_qp); 775 776 if (!iwqp->user_mode) 777 cancel_delayed_work_sync(&iwqp->dwork_flush); 778 779 irdma_qp_rem_ref(&iwqp->ibqp); 780 wait_for_completion(&iwqp->free_qp); 781 irdma_free_lsmm_rsrc(iwqp); 782 if (!iwdev->rf->reset && 783 irdma_cqp_qp_destroy_cmd(&iwdev->rf->sc_dev, &iwqp->sc_qp)) 784 return -ENOTRECOVERABLE; 785 free_rsrc: 786 if (!iwqp->user_mode) { 787 if (iwqp->iwscq) { 788 irdma_clean_cqes(iwqp, iwqp->iwscq); 789 if (iwqp->iwrcq != iwqp->iwscq) 790 irdma_clean_cqes(iwqp, iwqp->iwrcq); 791 } 792 } 793 irdma_remove_push_mmap_entries(iwqp); 794 irdma_free_qp_rsrc(iwqp); 795 796 return 0; 797 } 798 799 /** 800 * irdma_create_cq - create cq 801 * @ibcq: CQ allocated 802 * @attr: attributes for cq 803 * @udata: user data 804 */ 805 int 806 irdma_create_cq(struct ib_cq *ibcq, 807 const struct ib_cq_init_attr *attr, 808 struct ib_udata *udata) 809 { 810 struct ib_device *ibdev = ibcq->device; 811 struct irdma_device *iwdev = to_iwdev(ibdev); 812 struct irdma_pci_f *rf = iwdev->rf; 813 struct irdma_cq *iwcq = to_iwcq(ibcq); 814 u32 cq_num = 0; 815 struct irdma_sc_cq *cq; 816 struct irdma_sc_dev *dev = &rf->sc_dev; 817 struct irdma_cq_init_info info = {0}; 818 int status; 819 struct irdma_cqp_request *cqp_request; 820 struct cqp_cmds_info *cqp_info; 821 struct irdma_cq_uk_init_info *ukinfo = &info.cq_uk_init_info; 822 unsigned long flags; 823 int err_code; 824 int entries = attr->cqe; 825 826 err_code = cq_validate_flags(attr->flags, dev->hw_attrs.uk_attrs.hw_rev); 827 if (err_code) 828 return err_code; 829 err_code = irdma_alloc_rsrc(rf, rf->allocated_cqs, rf->max_cq, &cq_num, 830 &rf->next_cq); 831 if (err_code) 832 return err_code; 833 cq = &iwcq->sc_cq; 834 cq->back_cq = iwcq; 835 atomic_set(&iwcq->refcnt, 1); 836 spin_lock_init(&iwcq->lock); 837 INIT_LIST_HEAD(&iwcq->resize_list); 838 INIT_LIST_HEAD(&iwcq->cmpl_generated); 839 info.dev = dev; 840 ukinfo->cq_size = max(entries, 4); 841 ukinfo->cq_id = cq_num; 842 iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size; 843 if (attr->comp_vector < rf->ceqs_count) 844 info.ceq_id = attr->comp_vector; 845 info.ceq_id_valid = true; 846 info.ceqe_mask = 1; 847 info.type = IRDMA_CQ_TYPE_IWARP; 848 info.vsi = &iwdev->vsi; 849 850 if (udata) { 851 struct irdma_ucontext *ucontext; 852 struct irdma_create_cq_req req = {0}; 853 struct irdma_cq_mr *cqmr; 854 struct irdma_pbl *iwpbl; 855 struct irdma_pbl *iwpbl_shadow; 856 struct irdma_cq_mr *cqmr_shadow; 857 858 iwcq->user_mode = true; 859 ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); 860 if (ib_copy_from_udata(&req, udata, 861 min(sizeof(req), udata->inlen))) { 862 err_code = -EFAULT; 863 goto cq_free_rsrc; 864 } 865 866 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); 867 iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf, 868 &ucontext->cq_reg_mem_list); 869 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); 870 if (!iwpbl) { 871 err_code = -EPROTO; 872 goto cq_free_rsrc; 873 } 874 iwcq->iwpbl = iwpbl; 875 iwcq->cq_mem_size = 0; 876 cqmr = &iwpbl->cq_mr; 877 878 if (rf->sc_dev.hw_attrs.uk_attrs.feature_flags & 879 IRDMA_FEATURE_CQ_RESIZE && !ucontext->legacy_mode) { 880 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); 881 iwpbl_shadow = irdma_get_pbl((unsigned long)req.user_shadow_area, 882 &ucontext->cq_reg_mem_list); 883 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); 884 885 if (!iwpbl_shadow) { 886 err_code = -EPROTO; 887 goto cq_free_rsrc; 888 } 889 iwcq->iwpbl_shadow = iwpbl_shadow; 890 cqmr_shadow = &iwpbl_shadow->cq_mr; 891 info.shadow_area_pa = cqmr_shadow->cq_pbl.addr; 892 cqmr->split = true; 893 } else { 894 info.shadow_area_pa = cqmr->shadow; 895 } 896 if (iwpbl->pbl_allocated) { 897 info.virtual_map = true; 898 info.pbl_chunk_size = 1; 899 info.first_pm_pbl_idx = cqmr->cq_pbl.idx; 900 } else { 901 info.cq_base_pa = cqmr->cq_pbl.addr; 902 } 903 } else { 904 /* Kmode allocations */ 905 int rsize; 906 907 if (entries < 1 || entries > rf->max_cqe) { 908 err_code = -EINVAL; 909 goto cq_free_rsrc; 910 } 911 912 entries++; 913 if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) 914 entries *= 2; 915 ukinfo->cq_size = entries; 916 917 rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_cqe); 918 iwcq->kmem.size = round_up(rsize, 256); 919 iwcq->kmem.va = irdma_allocate_dma_mem(dev->hw, &iwcq->kmem, 920 iwcq->kmem.size, 256); 921 if (!iwcq->kmem.va) { 922 err_code = -ENOMEM; 923 goto cq_free_rsrc; 924 } 925 926 iwcq->kmem_shadow.size = IRDMA_SHADOW_AREA_SIZE << 3; 927 iwcq->kmem_shadow.va = irdma_allocate_dma_mem(dev->hw, 928 &iwcq->kmem_shadow, 929 iwcq->kmem_shadow.size, 930 64); 931 932 if (!iwcq->kmem_shadow.va) { 933 err_code = -ENOMEM; 934 goto cq_free_rsrc; 935 } 936 info.shadow_area_pa = iwcq->kmem_shadow.pa; 937 ukinfo->shadow_area = iwcq->kmem_shadow.va; 938 ukinfo->cq_base = iwcq->kmem.va; 939 info.cq_base_pa = iwcq->kmem.pa; 940 } 941 942 if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) 943 info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2, 944 (u32)IRDMA_MAX_CQ_READ_THRESH); 945 if (irdma_sc_cq_init(cq, &info)) { 946 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 947 "init cq fail\n"); 948 err_code = -EPROTO; 949 goto cq_free_rsrc; 950 } 951 952 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true); 953 if (!cqp_request) { 954 err_code = -ENOMEM; 955 goto cq_free_rsrc; 956 } 957 cqp_info = &cqp_request->info; 958 cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE; 959 cqp_info->post_sq = 1; 960 cqp_info->in.u.cq_create.cq = cq; 961 cqp_info->in.u.cq_create.check_overflow = true; 962 cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request; 963 status = irdma_handle_cqp_op(rf, cqp_request); 964 irdma_put_cqp_request(&rf->cqp, cqp_request); 965 if (status) { 966 err_code = -ENOMEM; 967 goto cq_free_rsrc; 968 } 969 970 if (udata) { 971 struct irdma_create_cq_resp resp = {0}; 972 973 resp.cq_id = info.cq_uk_init_info.cq_id; 974 resp.cq_size = info.cq_uk_init_info.cq_size; 975 if (ib_copy_to_udata(udata, &resp, 976 min(sizeof(resp), udata->outlen))) { 977 irdma_debug(iwdev_to_idev(iwdev), IRDMA_DEBUG_VERBS, 978 "copy to user data\n"); 979 err_code = -EPROTO; 980 goto cq_destroy; 981 } 982 } 983 984 rf->cq_table[cq_num] = iwcq; 985 init_completion(&iwcq->free_cq); 986 987 return 0; 988 cq_destroy: 989 irdma_cq_wq_destroy(rf, cq); 990 cq_free_rsrc: 991 irdma_cq_free_rsrc(rf, iwcq); 992 return err_code; 993 } 994 995 /** 996 * irdma_copy_user_pgaddrs - copy user page address to pble's os locally 997 * @iwmr: iwmr for IB's user page addresses 998 * @pbl: ple pointer to save 1 level or 0 level pble 999 * @level: indicated level 0, 1 or 2 1000 */ 1001 1002 void 1003 irdma_copy_user_pgaddrs(struct irdma_mr *iwmr, u64 *pbl, 1004 enum irdma_pble_level level) 1005 { 1006 struct ib_umem *region = iwmr->region; 1007 struct irdma_pbl *iwpbl = &iwmr->iwpbl; 1008 int chunk_pages, entry, i; 1009 struct scatterlist *sg; 1010 u64 pg_addr = 0; 1011 struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; 1012 struct irdma_pble_info *pinfo; 1013 u32 idx = 0; 1014 u32 pbl_cnt = 0; 1015 1016 pinfo = (level == PBLE_LEVEL_1) ? NULL : palloc->level2.leaf; 1017 for_each_sg(region->sg_head.sgl, sg, region->nmap, entry) { 1018 chunk_pages = DIV_ROUND_UP(sg_dma_len(sg), iwmr->page_size); 1019 if (iwmr->type == IRDMA_MEMREG_TYPE_QP && !iwpbl->qp_mr.sq_page) 1020 iwpbl->qp_mr.sq_page = sg_page(sg); 1021 for (i = 0; i < chunk_pages; i++) { 1022 pg_addr = sg_dma_address(sg) + (i * iwmr->page_size); 1023 if ((entry + i) == 0) 1024 *pbl = pg_addr & iwmr->page_msk; 1025 else if (!(pg_addr & ~iwmr->page_msk)) 1026 *pbl = pg_addr; 1027 else 1028 continue; 1029 if (++pbl_cnt == palloc->total_cnt) 1030 break; 1031 pbl = irdma_next_pbl_addr(pbl, &pinfo, &idx); 1032 } 1033 } 1034 } 1035 1036 /** 1037 * irdma_destroy_ah - Destroy address handle 1038 * @ibah: pointer to address handle 1039 * @ah_flags: destroy flags 1040 */ 1041 1042 void 1043 irdma_destroy_ah(struct ib_ah *ibah, u32 ah_flags) 1044 { 1045 struct irdma_device *iwdev = to_iwdev(ibah->device); 1046 struct irdma_ah *ah = to_iwah(ibah); 1047 1048 irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah, IRDMA_OP_AH_DESTROY, 1049 false, NULL, ah); 1050 1051 irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, 1052 ah->sc_ah.ah_info.ah_idx); 1053 } 1054 1055 int 1056 irdma_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata) 1057 { 1058 struct ib_pd *ibpd = ib_mr->pd; 1059 struct irdma_pd *iwpd = to_iwpd(ibpd); 1060 struct irdma_mr *iwmr = to_iwmr(ib_mr); 1061 struct irdma_device *iwdev = to_iwdev(ib_mr->device); 1062 struct irdma_dealloc_stag_info *info; 1063 struct irdma_pbl *iwpbl = &iwmr->iwpbl; 1064 struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; 1065 struct irdma_cqp_request *cqp_request; 1066 struct cqp_cmds_info *cqp_info; 1067 int status; 1068 1069 if (iwmr->type != IRDMA_MEMREG_TYPE_MEM) { 1070 if (iwmr->region) { 1071 struct irdma_ucontext *ucontext; 1072 1073 ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, ibucontext); 1074 irdma_del_memlist(iwmr, ucontext); 1075 } 1076 goto done; 1077 } 1078 1079 cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); 1080 if (!cqp_request) 1081 return -ENOMEM; 1082 1083 cqp_info = &cqp_request->info; 1084 info = &cqp_info->in.u.dealloc_stag.info; 1085 memset(info, 0, sizeof(*info)); 1086 info->pd_id = iwpd->sc_pd.pd_id & 0x00007fff; 1087 info->stag_idx = RS_64_1(ib_mr->rkey, IRDMA_CQPSQ_STAG_IDX_S); 1088 info->mr = true; 1089 if (iwpbl->pbl_allocated) 1090 info->dealloc_pbl = true; 1091 1092 cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG; 1093 cqp_info->post_sq = 1; 1094 cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev; 1095 cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request; 1096 status = irdma_handle_cqp_op(iwdev->rf, cqp_request); 1097 irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); 1098 if (status) 1099 return status; 1100 1101 irdma_free_stag(iwdev, iwmr->stag); 1102 done: 1103 if (iwpbl->pbl_allocated) 1104 irdma_free_pble(iwdev->rf->pble_rsrc, palloc); 1105 1106 if (iwmr->region) 1107 ib_umem_release(iwmr->region); 1108 kfree(iwmr); 1109 1110 return 0; 1111 } 1112 1113 int 1114 kc_irdma_set_roce_cm_info(struct irdma_qp *iwqp, struct ib_qp_attr *attr, 1115 u16 *vlan_id) 1116 { 1117 int ret; 1118 union ib_gid sgid; 1119 struct ib_gid_attr sgid_attr; 1120 struct irdma_av *av = &iwqp->roce_ah.av; 1121 1122 ret = ib_get_cached_gid(iwqp->ibqp.device, attr->ah_attr.port_num, 1123 attr->ah_attr.grh.sgid_index, &sgid, 1124 &sgid_attr); 1125 if (ret) 1126 return ret; 1127 1128 if (sgid_attr.ndev) { 1129 *vlan_id = rdma_vlan_dev_vlan_id(sgid_attr.ndev); 1130 ether_addr_copy(iwqp->ctx_info.roce_info->mac_addr, IF_LLADDR(sgid_attr.ndev)); 1131 } 1132 1133 rdma_gid2ip((struct sockaddr *)&av->sgid_addr, &sgid); 1134 1135 dev_put(sgid_attr.ndev); 1136 1137 return 0; 1138 } 1139 1140 /** 1141 * irdma_destroy_cq - destroy cq 1142 * @ib_cq: cq pointer 1143 * @udata: user data 1144 */ 1145 void 1146 irdma_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata) 1147 { 1148 struct irdma_device *iwdev = to_iwdev(ib_cq->device); 1149 struct irdma_cq *iwcq = to_iwcq(ib_cq); 1150 struct irdma_sc_cq *cq = &iwcq->sc_cq; 1151 struct irdma_sc_dev *dev = cq->dev; 1152 struct irdma_sc_ceq *ceq = dev->ceq[cq->ceq_id]; 1153 struct irdma_ceq *iwceq = container_of(ceq, struct irdma_ceq, sc_ceq); 1154 unsigned long flags; 1155 1156 spin_lock_irqsave(&iwcq->lock, flags); 1157 if (!list_empty(&iwcq->cmpl_generated)) 1158 irdma_remove_cmpls_list(iwcq); 1159 if (!list_empty(&iwcq->resize_list)) 1160 irdma_process_resize_list(iwcq, iwdev, NULL); 1161 spin_unlock_irqrestore(&iwcq->lock, flags); 1162 1163 irdma_cq_rem_ref(ib_cq); 1164 wait_for_completion(&iwcq->free_cq); 1165 1166 irdma_cq_wq_destroy(iwdev->rf, cq); 1167 irdma_cq_free_rsrc(iwdev->rf, iwcq); 1168 1169 spin_lock_irqsave(&iwceq->ce_lock, flags); 1170 irdma_sc_cleanup_ceqes(cq, ceq); 1171 spin_unlock_irqrestore(&iwceq->ce_lock, flags); 1172 } 1173 1174 /** 1175 * irdma_alloc_mw - Allocate memory window 1176 * @pd: Protection domain 1177 * @type: Window type 1178 * @udata: user data pointer 1179 */ 1180 struct ib_mw * 1181 irdma_alloc_mw(struct ib_pd *pd, enum ib_mw_type type, 1182 struct ib_udata *udata) 1183 { 1184 struct irdma_device *iwdev = to_iwdev(pd->device); 1185 struct irdma_mr *iwmr; 1186 int err_code; 1187 u32 stag; 1188 1189 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); 1190 if (!iwmr) 1191 return ERR_PTR(-ENOMEM); 1192 1193 stag = irdma_create_stag(iwdev); 1194 if (!stag) { 1195 kfree(iwmr); 1196 return ERR_PTR(-ENOMEM); 1197 } 1198 1199 iwmr->stag = stag; 1200 iwmr->ibmw.rkey = stag; 1201 iwmr->ibmw.pd = pd; 1202 iwmr->ibmw.type = type; 1203 iwmr->ibmw.device = pd->device; 1204 1205 err_code = irdma_hw_alloc_mw(iwdev, iwmr); 1206 if (err_code) { 1207 irdma_free_stag(iwdev, stag); 1208 kfree(iwmr); 1209 return ERR_PTR(err_code); 1210 } 1211 1212 return &iwmr->ibmw; 1213 } 1214 1215 /** 1216 * kc_set_loc_seq_num_mss - Set local seq number and mss 1217 * @cm_node: cm node info 1218 */ 1219 void 1220 kc_set_loc_seq_num_mss(struct irdma_cm_node *cm_node) 1221 { 1222 struct timespec ts; 1223 1224 getnanotime(&ts); 1225 cm_node->tcp_cntxt.loc_seq_num = ts.tv_nsec; 1226 if (cm_node->iwdev->vsi.mtu > 1500 && 1227 2 * cm_node->iwdev->vsi.mtu > cm_node->iwdev->rcv_wnd) 1228 cm_node->tcp_cntxt.mss = (cm_node->ipv4) ? 1229 (1500 - IRDMA_MTU_TO_MSS_IPV4) : 1230 (1500 - IRDMA_MTU_TO_MSS_IPV6); 1231 else 1232 cm_node->tcp_cntxt.mss = (cm_node->ipv4) ? 1233 (cm_node->iwdev->vsi.mtu - IRDMA_MTU_TO_MSS_IPV4) : 1234 (cm_node->iwdev->vsi.mtu - IRDMA_MTU_TO_MSS_IPV6); 1235 } 1236 1237 /** 1238 * irdma_disassociate_ucontext - Disassociate user context 1239 * @context: ib user context 1240 */ 1241 void 1242 irdma_disassociate_ucontext(struct ib_ucontext *context) 1243 { 1244 } 1245 1246 struct ib_device * 1247 ib_device_get_by_netdev(struct ifnet *netdev, int driver_id) 1248 { 1249 struct irdma_device *iwdev; 1250 struct irdma_handler *hdl; 1251 unsigned long flags; 1252 1253 spin_lock_irqsave(&irdma_handler_lock, flags); 1254 list_for_each_entry(hdl, &irdma_handlers, list) { 1255 iwdev = hdl->iwdev; 1256 if (netdev == iwdev->netdev) { 1257 spin_unlock_irqrestore(&irdma_handler_lock, 1258 flags); 1259 return &iwdev->ibdev; 1260 } 1261 } 1262 spin_unlock_irqrestore(&irdma_handler_lock, flags); 1263 1264 return NULL; 1265 } 1266 1267 void 1268 ib_unregister_device_put(struct ib_device *device) 1269 { 1270 ib_unregister_device(device); 1271 } 1272 1273 /** 1274 * irdma_query_gid_roce - Query port GID for Roce 1275 * @ibdev: device pointer from stack 1276 * @port: port number 1277 * @index: Entry index 1278 * @gid: Global ID 1279 */ 1280 int 1281 irdma_query_gid_roce(struct ib_device *ibdev, u8 port, int index, 1282 union ib_gid *gid) 1283 { 1284 int ret; 1285 1286 ret = rdma_query_gid(ibdev, port, index, gid); 1287 if (ret == -EAGAIN) { 1288 memcpy(gid, &zgid, sizeof(*gid)); 1289 return 0; 1290 } 1291 1292 return ret; 1293 } 1294 1295 /** 1296 * irdma_modify_port - modify port attributes 1297 * @ibdev: device pointer from stack 1298 * @port: port number for query 1299 * @mask: Property mask 1300 * @props: returning device attributes 1301 */ 1302 int 1303 irdma_modify_port(struct ib_device *ibdev, u8 port, int mask, 1304 struct ib_port_modify *props) 1305 { 1306 if (port > 1) 1307 return -EINVAL; 1308 1309 return 0; 1310 } 1311 1312 /** 1313 * irdma_query_pkey - Query partition key 1314 * @ibdev: device pointer from stack 1315 * @port: port number 1316 * @index: index of pkey 1317 * @pkey: pointer to store the pkey 1318 */ 1319 int 1320 irdma_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 1321 u16 *pkey) 1322 { 1323 if (index >= IRDMA_PKEY_TBL_SZ) 1324 return -EINVAL; 1325 1326 *pkey = IRDMA_DEFAULT_PKEY; 1327 return 0; 1328 } 1329 1330 int 1331 irdma_roce_port_immutable(struct ib_device *ibdev, u8 port_num, 1332 struct ib_port_immutable *immutable) 1333 { 1334 struct ib_port_attr attr; 1335 int err; 1336 1337 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; 1338 err = ib_query_port(ibdev, port_num, &attr); 1339 if (err) 1340 return err; 1341 1342 immutable->max_mad_size = IB_MGMT_MAD_SIZE; 1343 immutable->pkey_tbl_len = attr.pkey_tbl_len; 1344 immutable->gid_tbl_len = attr.gid_tbl_len; 1345 1346 return 0; 1347 } 1348 1349 int 1350 irdma_iw_port_immutable(struct ib_device *ibdev, u8 port_num, 1351 struct ib_port_immutable *immutable) 1352 { 1353 struct ib_port_attr attr; 1354 int err; 1355 1356 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; 1357 err = ib_query_port(ibdev, port_num, &attr); 1358 if (err) 1359 return err; 1360 immutable->gid_tbl_len = 1; 1361 1362 return 0; 1363 } 1364 1365 /** 1366 * irdma_get_eth_speed_and_width - Get IB port speed and width from netdev speed 1367 * @link_speed: netdev phy link speed 1368 * @active_speed: IB port speed 1369 * @active_width: IB port width 1370 */ 1371 void 1372 irdma_get_eth_speed_and_width(u32 link_speed, u8 *active_speed, 1373 u8 *active_width) 1374 { 1375 if (link_speed <= SPEED_1000) { 1376 *active_width = IB_WIDTH_1X; 1377 *active_speed = IB_SPEED_SDR; 1378 } else if (link_speed <= SPEED_10000) { 1379 *active_width = IB_WIDTH_1X; 1380 *active_speed = IB_SPEED_FDR10; 1381 } else if (link_speed <= SPEED_20000) { 1382 *active_width = IB_WIDTH_4X; 1383 *active_speed = IB_SPEED_DDR; 1384 } else if (link_speed <= SPEED_25000) { 1385 *active_width = IB_WIDTH_1X; 1386 *active_speed = IB_SPEED_EDR; 1387 } else if (link_speed <= SPEED_40000) { 1388 *active_width = IB_WIDTH_4X; 1389 *active_speed = IB_SPEED_FDR10; 1390 } else { 1391 *active_width = IB_WIDTH_4X; 1392 *active_speed = IB_SPEED_EDR; 1393 } 1394 } 1395 1396 /** 1397 * irdma_query_port - get port attributes 1398 * @ibdev: device pointer from stack 1399 * @port: port number for query 1400 * @props: returning device attributes 1401 */ 1402 int 1403 irdma_query_port(struct ib_device *ibdev, u8 port, 1404 struct ib_port_attr *props) 1405 { 1406 struct irdma_device *iwdev = to_iwdev(ibdev); 1407 struct ifnet *netdev = iwdev->netdev; 1408 1409 /* no need to zero out pros here. done by caller */ 1410 1411 props->max_mtu = IB_MTU_4096; 1412 props->active_mtu = ib_mtu_int_to_enum(netdev->if_mtu); 1413 props->lid = 1; 1414 props->lmc = 0; 1415 props->sm_lid = 0; 1416 props->sm_sl = 0; 1417 if ((netdev->if_link_state == LINK_STATE_UP) && (netdev->if_drv_flags & IFF_DRV_RUNNING)) { 1418 props->state = IB_PORT_ACTIVE; 1419 props->phys_state = IB_PORT_PHYS_STATE_LINK_UP; 1420 } else { 1421 props->state = IB_PORT_DOWN; 1422 props->phys_state = IB_PORT_PHYS_STATE_DISABLED; 1423 } 1424 irdma_get_eth_speed_and_width(SPEED_100000, &props->active_speed, 1425 &props->active_width); 1426 1427 if (rdma_protocol_roce(ibdev, 1)) { 1428 props->gid_tbl_len = 32; 1429 kc_set_props_ip_gid_caps(props); 1430 props->pkey_tbl_len = IRDMA_PKEY_TBL_SZ; 1431 } else { 1432 props->gid_tbl_len = 1; 1433 } 1434 props->qkey_viol_cntr = 0; 1435 props->port_cap_flags |= IB_PORT_CM_SUP | IB_PORT_REINIT_SUP; 1436 props->max_msg_sz = iwdev->rf->sc_dev.hw_attrs.max_hw_outbound_msg_size; 1437 1438 return 0; 1439 } 1440 1441 extern const char *const irdma_hw_stat_names[]; 1442 1443 /** 1444 * irdma_alloc_hw_stats - Allocate a hw stats structure 1445 * @ibdev: device pointer from stack 1446 * @port_num: port number 1447 */ 1448 struct rdma_hw_stats * 1449 irdma_alloc_hw_stats(struct ib_device *ibdev, 1450 u8 port_num) 1451 { 1452 struct irdma_device *iwdev = to_iwdev(ibdev); 1453 struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; 1454 1455 int num_counters = dev->hw_attrs.max_stat_idx; 1456 unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN; 1457 1458 return rdma_alloc_hw_stats_struct(irdma_hw_stat_names, num_counters, 1459 lifespan); 1460 } 1461 1462 /** 1463 * irdma_get_hw_stats - Populates the rdma_hw_stats structure 1464 * @ibdev: device pointer from stack 1465 * @stats: stats pointer from stack 1466 * @port_num: port number 1467 * @index: which hw counter the stack is requesting we update 1468 */ 1469 int 1470 irdma_get_hw_stats(struct ib_device *ibdev, 1471 struct rdma_hw_stats *stats, u8 port_num, 1472 int index) 1473 { 1474 struct irdma_device *iwdev = to_iwdev(ibdev); 1475 struct irdma_dev_hw_stats *hw_stats = &iwdev->vsi.pestat->hw_stats; 1476 1477 if (iwdev->rf->rdma_ver >= IRDMA_GEN_2) 1478 irdma_cqp_gather_stats_cmd(&iwdev->rf->sc_dev, iwdev->vsi.pestat, true); 1479 1480 memcpy(&stats->value[0], hw_stats, sizeof(u64)* stats->num_counters); 1481 1482 return stats->num_counters; 1483 } 1484 1485 /** 1486 * irdma_query_gid - Query port GID 1487 * @ibdev: device pointer from stack 1488 * @port: port number 1489 * @index: Entry index 1490 * @gid: Global ID 1491 */ 1492 int 1493 irdma_query_gid(struct ib_device *ibdev, u8 port, int index, 1494 union ib_gid *gid) 1495 { 1496 struct irdma_device *iwdev = to_iwdev(ibdev); 1497 1498 memset(gid->raw, 0, sizeof(gid->raw)); 1499 ether_addr_copy(gid->raw, IF_LLADDR(iwdev->netdev)); 1500 1501 return 0; 1502 } 1503 1504 enum rdma_link_layer 1505 irdma_get_link_layer(struct ib_device *ibdev, 1506 u8 port_num) 1507 { 1508 return IB_LINK_LAYER_ETHERNET; 1509 } 1510 1511 inline enum ib_mtu 1512 ib_mtu_int_to_enum(int mtu) 1513 { 1514 if (mtu >= 4096) 1515 return IB_MTU_4096; 1516 else if (mtu >= 2048) 1517 return IB_MTU_2048; 1518 else if (mtu >= 1024) 1519 return IB_MTU_1024; 1520 else if (mtu >= 512) 1521 return IB_MTU_512; 1522 else 1523 return IB_MTU_256; 1524 } 1525 1526 inline void 1527 kc_set_roce_uverbs_cmd_mask(struct irdma_device *iwdev) 1528 { 1529 iwdev->ibdev.uverbs_cmd_mask |= 1530 BIT_ULL(IB_USER_VERBS_CMD_ATTACH_MCAST) | 1531 BIT_ULL(IB_USER_VERBS_CMD_CREATE_AH) | 1532 BIT_ULL(IB_USER_VERBS_CMD_DESTROY_AH) | 1533 BIT_ULL(IB_USER_VERBS_CMD_DETACH_MCAST); 1534 } 1535 1536 inline void 1537 kc_set_rdma_uverbs_cmd_mask(struct irdma_device *iwdev) 1538 { 1539 iwdev->ibdev.uverbs_cmd_mask = 1540 BIT_ULL(IB_USER_VERBS_CMD_GET_CONTEXT) | 1541 BIT_ULL(IB_USER_VERBS_CMD_QUERY_DEVICE) | 1542 BIT_ULL(IB_USER_VERBS_CMD_QUERY_PORT) | 1543 BIT_ULL(IB_USER_VERBS_CMD_ALLOC_PD) | 1544 BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_PD) | 1545 BIT_ULL(IB_USER_VERBS_CMD_REG_MR) | 1546 BIT_ULL(IB_USER_VERBS_CMD_DEREG_MR) | 1547 BIT_ULL(IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1548 BIT_ULL(IB_USER_VERBS_CMD_CREATE_CQ) | 1549 BIT_ULL(IB_USER_VERBS_CMD_RESIZE_CQ) | 1550 BIT_ULL(IB_USER_VERBS_CMD_DESTROY_CQ) | 1551 BIT_ULL(IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | 1552 BIT_ULL(IB_USER_VERBS_CMD_CREATE_QP) | 1553 BIT_ULL(IB_USER_VERBS_CMD_MODIFY_QP) | 1554 BIT_ULL(IB_USER_VERBS_CMD_QUERY_QP) | 1555 BIT_ULL(IB_USER_VERBS_CMD_POLL_CQ) | 1556 BIT_ULL(IB_USER_VERBS_CMD_DESTROY_QP) | 1557 BIT_ULL(IB_USER_VERBS_CMD_ALLOC_MW) | 1558 BIT_ULL(IB_USER_VERBS_CMD_BIND_MW) | 1559 BIT_ULL(IB_USER_VERBS_CMD_DEALLOC_MW) | 1560 BIT_ULL(IB_USER_VERBS_CMD_POST_RECV) | 1561 BIT_ULL(IB_USER_VERBS_CMD_POST_SEND); 1562 iwdev->ibdev.uverbs_ex_cmd_mask = 1563 BIT_ULL(IB_USER_VERBS_EX_CMD_MODIFY_QP) | 1564 BIT_ULL(IB_USER_VERBS_EX_CMD_QUERY_DEVICE); 1565 1566 if (iwdev->rf->rdma_ver >= IRDMA_GEN_2) 1567 iwdev->ibdev.uverbs_ex_cmd_mask |= BIT_ULL(IB_USER_VERBS_EX_CMD_CREATE_CQ); 1568 } 1569