1 // SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB 2 /* Copyright (c) 2015 - 2021 Intel Corporation */ 3 #include "main.h" 4 5 /** 6 * irdma_query_device - get device attributes 7 * @ibdev: device pointer from stack 8 * @props: returning device attributes 9 * @udata: user data 10 */ 11 static int irdma_query_device(struct ib_device *ibdev, 12 struct ib_device_attr *props, 13 struct ib_udata *udata) 14 { 15 struct irdma_device *iwdev = to_iwdev(ibdev); 16 struct irdma_pci_f *rf = iwdev->rf; 17 struct pci_dev *pcidev = iwdev->rf->pcidev; 18 struct irdma_hw_attrs *hw_attrs = &rf->sc_dev.hw_attrs; 19 20 if (udata->inlen || udata->outlen) 21 return -EINVAL; 22 23 memset(props, 0, sizeof(*props)); 24 addrconf_addr_eui48((u8 *)&props->sys_image_guid, 25 iwdev->netdev->dev_addr); 26 props->fw_ver = (u64)irdma_fw_major_ver(&rf->sc_dev) << 32 | 27 irdma_fw_minor_ver(&rf->sc_dev); 28 props->device_cap_flags = IB_DEVICE_MEM_WINDOW | 29 IB_DEVICE_MEM_MGT_EXTENSIONS; 30 props->kernel_cap_flags = IBK_LOCAL_DMA_LKEY; 31 props->vendor_id = pcidev->vendor; 32 props->vendor_part_id = pcidev->device; 33 34 props->hw_ver = rf->pcidev->revision; 35 props->page_size_cap = hw_attrs->page_size_cap; 36 props->max_mr_size = hw_attrs->max_mr_size; 37 props->max_qp = rf->max_qp - rf->used_qps; 38 props->max_qp_wr = hw_attrs->max_qp_wr; 39 props->max_send_sge = hw_attrs->uk_attrs.max_hw_wq_frags; 40 props->max_recv_sge = hw_attrs->uk_attrs.max_hw_wq_frags; 41 props->max_cq = rf->max_cq - rf->used_cqs; 42 props->max_cqe = rf->max_cqe - 1; 43 props->max_mr = rf->max_mr - rf->used_mrs; 44 props->max_mw = props->max_mr; 45 props->max_pd = rf->max_pd - rf->used_pds; 46 props->max_sge_rd = hw_attrs->uk_attrs.max_hw_read_sges; 47 props->max_qp_rd_atom = hw_attrs->max_hw_ird; 48 props->max_qp_init_rd_atom = hw_attrs->max_hw_ord; 49 if (rdma_protocol_roce(ibdev, 1)) { 50 props->device_cap_flags |= IB_DEVICE_RC_RNR_NAK_GEN; 51 props->max_pkeys = IRDMA_PKEY_TBL_SZ; 52 } 53 54 props->max_ah = rf->max_ah; 55 props->max_mcast_grp = rf->max_mcg; 56 props->max_mcast_qp_attach = IRDMA_MAX_MGS_PER_CTX; 57 props->max_total_mcast_qp_attach = rf->max_qp * IRDMA_MAX_MGS_PER_CTX; 58 props->max_fast_reg_page_list_len = IRDMA_MAX_PAGES_PER_FMR; 59 #define HCA_CLOCK_TIMESTAMP_MASK 0x1ffff 60 if (hw_attrs->uk_attrs.hw_rev >= IRDMA_GEN_2) 61 props->timestamp_mask = HCA_CLOCK_TIMESTAMP_MASK; 62 63 return 0; 64 } 65 66 /** 67 * irdma_query_port - get port attributes 68 * @ibdev: device pointer from stack 69 * @port: port number for query 70 * @props: returning device attributes 71 */ 72 static int irdma_query_port(struct ib_device *ibdev, u32 port, 73 struct ib_port_attr *props) 74 { 75 struct irdma_device *iwdev = to_iwdev(ibdev); 76 struct net_device *netdev = iwdev->netdev; 77 78 /* no need to zero out pros here. done by caller */ 79 80 props->max_mtu = IB_MTU_4096; 81 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu); 82 props->lid = 1; 83 props->lmc = 0; 84 props->sm_lid = 0; 85 props->sm_sl = 0; 86 if (netif_carrier_ok(netdev) && netif_running(netdev)) { 87 props->state = IB_PORT_ACTIVE; 88 props->phys_state = IB_PORT_PHYS_STATE_LINK_UP; 89 } else { 90 props->state = IB_PORT_DOWN; 91 props->phys_state = IB_PORT_PHYS_STATE_DISABLED; 92 } 93 94 ib_get_eth_speed(ibdev, port, &props->active_speed, 95 &props->active_width); 96 97 if (rdma_protocol_roce(ibdev, 1)) { 98 props->gid_tbl_len = 32; 99 props->ip_gids = true; 100 props->pkey_tbl_len = IRDMA_PKEY_TBL_SZ; 101 } else { 102 props->gid_tbl_len = 1; 103 } 104 props->qkey_viol_cntr = 0; 105 props->port_cap_flags |= IB_PORT_CM_SUP | IB_PORT_REINIT_SUP; 106 props->max_msg_sz = iwdev->rf->sc_dev.hw_attrs.max_hw_outbound_msg_size; 107 108 return 0; 109 } 110 111 /** 112 * irdma_disassociate_ucontext - Disassociate user context 113 * @context: ib user context 114 */ 115 static void irdma_disassociate_ucontext(struct ib_ucontext *context) 116 { 117 } 118 119 static int irdma_mmap_legacy(struct irdma_ucontext *ucontext, 120 struct vm_area_struct *vma) 121 { 122 u64 pfn; 123 124 if (vma->vm_pgoff || vma->vm_end - vma->vm_start != PAGE_SIZE) 125 return -EINVAL; 126 127 vma->vm_private_data = ucontext; 128 pfn = ((uintptr_t)ucontext->iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET] + 129 pci_resource_start(ucontext->iwdev->rf->pcidev, 0)) >> PAGE_SHIFT; 130 131 return rdma_user_mmap_io(&ucontext->ibucontext, vma, pfn, PAGE_SIZE, 132 pgprot_noncached(vma->vm_page_prot), NULL); 133 } 134 135 static void irdma_mmap_free(struct rdma_user_mmap_entry *rdma_entry) 136 { 137 struct irdma_user_mmap_entry *entry = to_irdma_mmap_entry(rdma_entry); 138 139 kfree(entry); 140 } 141 142 static struct rdma_user_mmap_entry* 143 irdma_user_mmap_entry_insert(struct irdma_ucontext *ucontext, u64 bar_offset, 144 enum irdma_mmap_flag mmap_flag, u64 *mmap_offset) 145 { 146 struct irdma_user_mmap_entry *entry = kzalloc(sizeof(*entry), GFP_KERNEL); 147 int ret; 148 149 if (!entry) 150 return NULL; 151 152 entry->bar_offset = bar_offset; 153 entry->mmap_flag = mmap_flag; 154 155 ret = rdma_user_mmap_entry_insert(&ucontext->ibucontext, 156 &entry->rdma_entry, PAGE_SIZE); 157 if (ret) { 158 kfree(entry); 159 return NULL; 160 } 161 *mmap_offset = rdma_user_mmap_get_offset(&entry->rdma_entry); 162 163 return &entry->rdma_entry; 164 } 165 166 /** 167 * irdma_mmap - user memory map 168 * @context: context created during alloc 169 * @vma: kernel info for user memory map 170 */ 171 static int irdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) 172 { 173 struct rdma_user_mmap_entry *rdma_entry; 174 struct irdma_user_mmap_entry *entry; 175 struct irdma_ucontext *ucontext; 176 u64 pfn; 177 int ret; 178 179 ucontext = to_ucontext(context); 180 181 /* Legacy support for libi40iw with hard-coded mmap key */ 182 if (ucontext->legacy_mode) 183 return irdma_mmap_legacy(ucontext, vma); 184 185 rdma_entry = rdma_user_mmap_entry_get(&ucontext->ibucontext, vma); 186 if (!rdma_entry) { 187 ibdev_dbg(&ucontext->iwdev->ibdev, 188 "VERBS: pgoff[0x%lx] does not have valid entry\n", 189 vma->vm_pgoff); 190 return -EINVAL; 191 } 192 193 entry = to_irdma_mmap_entry(rdma_entry); 194 ibdev_dbg(&ucontext->iwdev->ibdev, 195 "VERBS: bar_offset [0x%llx] mmap_flag [%d]\n", 196 entry->bar_offset, entry->mmap_flag); 197 198 pfn = (entry->bar_offset + 199 pci_resource_start(ucontext->iwdev->rf->pcidev, 0)) >> PAGE_SHIFT; 200 201 switch (entry->mmap_flag) { 202 case IRDMA_MMAP_IO_NC: 203 ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE, 204 pgprot_noncached(vma->vm_page_prot), 205 rdma_entry); 206 break; 207 case IRDMA_MMAP_IO_WC: 208 ret = rdma_user_mmap_io(context, vma, pfn, PAGE_SIZE, 209 pgprot_writecombine(vma->vm_page_prot), 210 rdma_entry); 211 break; 212 default: 213 ret = -EINVAL; 214 } 215 216 if (ret) 217 ibdev_dbg(&ucontext->iwdev->ibdev, 218 "VERBS: bar_offset [0x%llx] mmap_flag[%d] err[%d]\n", 219 entry->bar_offset, entry->mmap_flag, ret); 220 rdma_user_mmap_entry_put(rdma_entry); 221 222 return ret; 223 } 224 225 /** 226 * irdma_alloc_push_page - allocate a push page for qp 227 * @iwqp: qp pointer 228 */ 229 static void irdma_alloc_push_page(struct irdma_qp *iwqp) 230 { 231 struct irdma_cqp_request *cqp_request; 232 struct cqp_cmds_info *cqp_info; 233 struct irdma_device *iwdev = iwqp->iwdev; 234 struct irdma_sc_qp *qp = &iwqp->sc_qp; 235 int status; 236 237 cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); 238 if (!cqp_request) 239 return; 240 241 cqp_info = &cqp_request->info; 242 cqp_info->cqp_cmd = IRDMA_OP_MANAGE_PUSH_PAGE; 243 cqp_info->post_sq = 1; 244 cqp_info->in.u.manage_push_page.info.push_idx = 0; 245 cqp_info->in.u.manage_push_page.info.qs_handle = 246 qp->vsi->qos[qp->user_pri].qs_handle; 247 cqp_info->in.u.manage_push_page.info.free_page = 0; 248 cqp_info->in.u.manage_push_page.info.push_page_type = 0; 249 cqp_info->in.u.manage_push_page.cqp = &iwdev->rf->cqp.sc_cqp; 250 cqp_info->in.u.manage_push_page.scratch = (uintptr_t)cqp_request; 251 252 status = irdma_handle_cqp_op(iwdev->rf, cqp_request); 253 if (!status && cqp_request->compl_info.op_ret_val < 254 iwdev->rf->sc_dev.hw_attrs.max_hw_device_pages) { 255 qp->push_idx = cqp_request->compl_info.op_ret_val; 256 qp->push_offset = 0; 257 } 258 259 irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); 260 } 261 262 /** 263 * irdma_alloc_ucontext - Allocate the user context data structure 264 * @uctx: uverbs context pointer 265 * @udata: user data 266 * 267 * This keeps track of all objects associated with a particular 268 * user-mode client. 269 */ 270 static int irdma_alloc_ucontext(struct ib_ucontext *uctx, 271 struct ib_udata *udata) 272 { 273 #define IRDMA_ALLOC_UCTX_MIN_REQ_LEN offsetofend(struct irdma_alloc_ucontext_req, rsvd8) 274 #define IRDMA_ALLOC_UCTX_MIN_RESP_LEN offsetofend(struct irdma_alloc_ucontext_resp, rsvd) 275 struct ib_device *ibdev = uctx->device; 276 struct irdma_device *iwdev = to_iwdev(ibdev); 277 struct irdma_alloc_ucontext_req req = {}; 278 struct irdma_alloc_ucontext_resp uresp = {}; 279 struct irdma_ucontext *ucontext = to_ucontext(uctx); 280 struct irdma_uk_attrs *uk_attrs; 281 282 if (udata->inlen < IRDMA_ALLOC_UCTX_MIN_REQ_LEN || 283 udata->outlen < IRDMA_ALLOC_UCTX_MIN_RESP_LEN) 284 return -EINVAL; 285 286 if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) 287 return -EINVAL; 288 289 if (req.userspace_ver < 4 || req.userspace_ver > IRDMA_ABI_VER) 290 goto ver_error; 291 292 ucontext->iwdev = iwdev; 293 ucontext->abi_ver = req.userspace_ver; 294 295 uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs; 296 /* GEN_1 legacy support with libi40iw */ 297 if (udata->outlen == IRDMA_ALLOC_UCTX_MIN_RESP_LEN) { 298 if (uk_attrs->hw_rev != IRDMA_GEN_1) 299 return -EOPNOTSUPP; 300 301 ucontext->legacy_mode = true; 302 uresp.max_qps = iwdev->rf->max_qp; 303 uresp.max_pds = iwdev->rf->sc_dev.hw_attrs.max_hw_pds; 304 uresp.wq_size = iwdev->rf->sc_dev.hw_attrs.max_qp_wr * 2; 305 uresp.kernel_ver = req.userspace_ver; 306 if (ib_copy_to_udata(udata, &uresp, 307 min(sizeof(uresp), udata->outlen))) 308 return -EFAULT; 309 } else { 310 u64 bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET]; 311 312 ucontext->db_mmap_entry = 313 irdma_user_mmap_entry_insert(ucontext, bar_off, 314 IRDMA_MMAP_IO_NC, 315 &uresp.db_mmap_key); 316 if (!ucontext->db_mmap_entry) 317 return -ENOMEM; 318 319 uresp.kernel_ver = IRDMA_ABI_VER; 320 uresp.feature_flags = uk_attrs->feature_flags; 321 uresp.max_hw_wq_frags = uk_attrs->max_hw_wq_frags; 322 uresp.max_hw_read_sges = uk_attrs->max_hw_read_sges; 323 uresp.max_hw_inline = uk_attrs->max_hw_inline; 324 uresp.max_hw_rq_quanta = uk_attrs->max_hw_rq_quanta; 325 uresp.max_hw_wq_quanta = uk_attrs->max_hw_wq_quanta; 326 uresp.max_hw_sq_chunk = uk_attrs->max_hw_sq_chunk; 327 uresp.max_hw_cq_size = uk_attrs->max_hw_cq_size; 328 uresp.min_hw_cq_size = uk_attrs->min_hw_cq_size; 329 uresp.hw_rev = uk_attrs->hw_rev; 330 if (ib_copy_to_udata(udata, &uresp, 331 min(sizeof(uresp), udata->outlen))) { 332 rdma_user_mmap_entry_remove(ucontext->db_mmap_entry); 333 return -EFAULT; 334 } 335 } 336 337 INIT_LIST_HEAD(&ucontext->cq_reg_mem_list); 338 spin_lock_init(&ucontext->cq_reg_mem_list_lock); 339 INIT_LIST_HEAD(&ucontext->qp_reg_mem_list); 340 spin_lock_init(&ucontext->qp_reg_mem_list_lock); 341 342 return 0; 343 344 ver_error: 345 ibdev_err(&iwdev->ibdev, 346 "Invalid userspace driver version detected. Detected version %d, should be %d\n", 347 req.userspace_ver, IRDMA_ABI_VER); 348 return -EINVAL; 349 } 350 351 /** 352 * irdma_dealloc_ucontext - deallocate the user context data structure 353 * @context: user context created during alloc 354 */ 355 static void irdma_dealloc_ucontext(struct ib_ucontext *context) 356 { 357 struct irdma_ucontext *ucontext = to_ucontext(context); 358 359 rdma_user_mmap_entry_remove(ucontext->db_mmap_entry); 360 } 361 362 /** 363 * irdma_alloc_pd - allocate protection domain 364 * @pd: PD pointer 365 * @udata: user data 366 */ 367 static int irdma_alloc_pd(struct ib_pd *pd, struct ib_udata *udata) 368 { 369 #define IRDMA_ALLOC_PD_MIN_RESP_LEN offsetofend(struct irdma_alloc_pd_resp, rsvd) 370 struct irdma_pd *iwpd = to_iwpd(pd); 371 struct irdma_device *iwdev = to_iwdev(pd->device); 372 struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; 373 struct irdma_pci_f *rf = iwdev->rf; 374 struct irdma_alloc_pd_resp uresp = {}; 375 struct irdma_sc_pd *sc_pd; 376 u32 pd_id = 0; 377 int err; 378 379 if (udata && udata->outlen < IRDMA_ALLOC_PD_MIN_RESP_LEN) 380 return -EINVAL; 381 382 err = irdma_alloc_rsrc(rf, rf->allocated_pds, rf->max_pd, &pd_id, 383 &rf->next_pd); 384 if (err) 385 return err; 386 387 sc_pd = &iwpd->sc_pd; 388 if (udata) { 389 struct irdma_ucontext *ucontext = 390 rdma_udata_to_drv_context(udata, struct irdma_ucontext, 391 ibucontext); 392 irdma_sc_pd_init(dev, sc_pd, pd_id, ucontext->abi_ver); 393 uresp.pd_id = pd_id; 394 if (ib_copy_to_udata(udata, &uresp, 395 min(sizeof(uresp), udata->outlen))) { 396 err = -EFAULT; 397 goto error; 398 } 399 } else { 400 irdma_sc_pd_init(dev, sc_pd, pd_id, IRDMA_ABI_VER); 401 } 402 403 return 0; 404 error: 405 irdma_free_rsrc(rf, rf->allocated_pds, pd_id); 406 407 return err; 408 } 409 410 /** 411 * irdma_dealloc_pd - deallocate pd 412 * @ibpd: ptr of pd to be deallocated 413 * @udata: user data 414 */ 415 static int irdma_dealloc_pd(struct ib_pd *ibpd, struct ib_udata *udata) 416 { 417 struct irdma_pd *iwpd = to_iwpd(ibpd); 418 struct irdma_device *iwdev = to_iwdev(ibpd->device); 419 420 irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_pds, iwpd->sc_pd.pd_id); 421 422 return 0; 423 } 424 425 /** 426 * irdma_get_pbl - Retrieve pbl from a list given a virtual 427 * address 428 * @va: user virtual address 429 * @pbl_list: pbl list to search in (QP's or CQ's) 430 */ 431 static struct irdma_pbl *irdma_get_pbl(unsigned long va, 432 struct list_head *pbl_list) 433 { 434 struct irdma_pbl *iwpbl; 435 436 list_for_each_entry (iwpbl, pbl_list, list) { 437 if (iwpbl->user_base == va) { 438 list_del(&iwpbl->list); 439 iwpbl->on_list = false; 440 return iwpbl; 441 } 442 } 443 444 return NULL; 445 } 446 447 /** 448 * irdma_clean_cqes - clean cq entries for qp 449 * @iwqp: qp ptr (user or kernel) 450 * @iwcq: cq ptr 451 */ 452 static void irdma_clean_cqes(struct irdma_qp *iwqp, struct irdma_cq *iwcq) 453 { 454 struct irdma_cq_uk *ukcq = &iwcq->sc_cq.cq_uk; 455 unsigned long flags; 456 457 spin_lock_irqsave(&iwcq->lock, flags); 458 irdma_uk_clean_cq(&iwqp->sc_qp.qp_uk, ukcq); 459 spin_unlock_irqrestore(&iwcq->lock, flags); 460 } 461 462 static void irdma_remove_push_mmap_entries(struct irdma_qp *iwqp) 463 { 464 if (iwqp->push_db_mmap_entry) { 465 rdma_user_mmap_entry_remove(iwqp->push_db_mmap_entry); 466 iwqp->push_db_mmap_entry = NULL; 467 } 468 if (iwqp->push_wqe_mmap_entry) { 469 rdma_user_mmap_entry_remove(iwqp->push_wqe_mmap_entry); 470 iwqp->push_wqe_mmap_entry = NULL; 471 } 472 } 473 474 static int irdma_setup_push_mmap_entries(struct irdma_ucontext *ucontext, 475 struct irdma_qp *iwqp, 476 u64 *push_wqe_mmap_key, 477 u64 *push_db_mmap_key) 478 { 479 struct irdma_device *iwdev = ucontext->iwdev; 480 u64 rsvd, bar_off; 481 482 rsvd = IRDMA_PF_BAR_RSVD; 483 bar_off = (uintptr_t)iwdev->rf->sc_dev.hw_regs[IRDMA_DB_ADDR_OFFSET]; 484 /* skip over db page */ 485 bar_off += IRDMA_HW_PAGE_SIZE; 486 /* push wqe page */ 487 bar_off += rsvd + iwqp->sc_qp.push_idx * IRDMA_HW_PAGE_SIZE; 488 iwqp->push_wqe_mmap_entry = irdma_user_mmap_entry_insert(ucontext, 489 bar_off, IRDMA_MMAP_IO_WC, 490 push_wqe_mmap_key); 491 if (!iwqp->push_wqe_mmap_entry) 492 return -ENOMEM; 493 494 /* push doorbell page */ 495 bar_off += IRDMA_HW_PAGE_SIZE; 496 iwqp->push_db_mmap_entry = irdma_user_mmap_entry_insert(ucontext, 497 bar_off, IRDMA_MMAP_IO_NC, 498 push_db_mmap_key); 499 if (!iwqp->push_db_mmap_entry) { 500 rdma_user_mmap_entry_remove(iwqp->push_wqe_mmap_entry); 501 return -ENOMEM; 502 } 503 504 return 0; 505 } 506 507 /** 508 * irdma_destroy_qp - destroy qp 509 * @ibqp: qp's ib pointer also to get to device's qp address 510 * @udata: user data 511 */ 512 static int irdma_destroy_qp(struct ib_qp *ibqp, struct ib_udata *udata) 513 { 514 struct irdma_qp *iwqp = to_iwqp(ibqp); 515 struct irdma_device *iwdev = iwqp->iwdev; 516 517 iwqp->sc_qp.qp_uk.destroy_pending = true; 518 519 if (iwqp->iwarp_state == IRDMA_QP_STATE_RTS) 520 irdma_modify_qp_to_err(&iwqp->sc_qp); 521 522 if (!iwqp->user_mode) 523 cancel_delayed_work_sync(&iwqp->dwork_flush); 524 525 irdma_qp_rem_ref(&iwqp->ibqp); 526 wait_for_completion(&iwqp->free_qp); 527 irdma_free_lsmm_rsrc(iwqp); 528 irdma_cqp_qp_destroy_cmd(&iwdev->rf->sc_dev, &iwqp->sc_qp); 529 530 if (!iwqp->user_mode) { 531 if (iwqp->iwscq) { 532 irdma_clean_cqes(iwqp, iwqp->iwscq); 533 if (iwqp->iwrcq != iwqp->iwscq) 534 irdma_clean_cqes(iwqp, iwqp->iwrcq); 535 } 536 } 537 irdma_remove_push_mmap_entries(iwqp); 538 irdma_free_qp_rsrc(iwqp); 539 540 return 0; 541 } 542 543 /** 544 * irdma_setup_virt_qp - setup for allocation of virtual qp 545 * @iwdev: irdma device 546 * @iwqp: qp ptr 547 * @init_info: initialize info to return 548 */ 549 static void irdma_setup_virt_qp(struct irdma_device *iwdev, 550 struct irdma_qp *iwqp, 551 struct irdma_qp_init_info *init_info) 552 { 553 struct irdma_pbl *iwpbl = iwqp->iwpbl; 554 struct irdma_qp_mr *qpmr = &iwpbl->qp_mr; 555 556 iwqp->page = qpmr->sq_page; 557 init_info->shadow_area_pa = qpmr->shadow; 558 if (iwpbl->pbl_allocated) { 559 init_info->virtual_map = true; 560 init_info->sq_pa = qpmr->sq_pbl.idx; 561 init_info->rq_pa = qpmr->rq_pbl.idx; 562 } else { 563 init_info->sq_pa = qpmr->sq_pbl.addr; 564 init_info->rq_pa = qpmr->rq_pbl.addr; 565 } 566 } 567 568 /** 569 * irdma_setup_kmode_qp - setup initialization for kernel mode qp 570 * @iwdev: iwarp device 571 * @iwqp: qp ptr (user or kernel) 572 * @info: initialize info to return 573 * @init_attr: Initial QP create attributes 574 */ 575 static int irdma_setup_kmode_qp(struct irdma_device *iwdev, 576 struct irdma_qp *iwqp, 577 struct irdma_qp_init_info *info, 578 struct ib_qp_init_attr *init_attr) 579 { 580 struct irdma_dma_mem *mem = &iwqp->kqp.dma_mem; 581 u32 sqdepth, rqdepth; 582 u8 sqshift, rqshift; 583 u32 size; 584 int status; 585 struct irdma_qp_uk_init_info *ukinfo = &info->qp_uk_init_info; 586 struct irdma_uk_attrs *uk_attrs = &iwdev->rf->sc_dev.hw_attrs.uk_attrs; 587 588 irdma_get_wqe_shift(uk_attrs, 589 uk_attrs->hw_rev >= IRDMA_GEN_2 ? ukinfo->max_sq_frag_cnt + 1 : 590 ukinfo->max_sq_frag_cnt, 591 ukinfo->max_inline_data, &sqshift); 592 status = irdma_get_sqdepth(uk_attrs, ukinfo->sq_size, sqshift, 593 &sqdepth); 594 if (status) 595 return status; 596 597 if (uk_attrs->hw_rev == IRDMA_GEN_1) 598 rqshift = IRDMA_MAX_RQ_WQE_SHIFT_GEN1; 599 else 600 irdma_get_wqe_shift(uk_attrs, ukinfo->max_rq_frag_cnt, 0, 601 &rqshift); 602 603 status = irdma_get_rqdepth(uk_attrs, ukinfo->rq_size, rqshift, 604 &rqdepth); 605 if (status) 606 return status; 607 608 iwqp->kqp.sq_wrid_mem = 609 kcalloc(sqdepth, sizeof(*iwqp->kqp.sq_wrid_mem), GFP_KERNEL); 610 if (!iwqp->kqp.sq_wrid_mem) 611 return -ENOMEM; 612 613 iwqp->kqp.rq_wrid_mem = 614 kcalloc(rqdepth, sizeof(*iwqp->kqp.rq_wrid_mem), GFP_KERNEL); 615 if (!iwqp->kqp.rq_wrid_mem) { 616 kfree(iwqp->kqp.sq_wrid_mem); 617 iwqp->kqp.sq_wrid_mem = NULL; 618 return -ENOMEM; 619 } 620 621 ukinfo->sq_wrtrk_array = iwqp->kqp.sq_wrid_mem; 622 ukinfo->rq_wrid_array = iwqp->kqp.rq_wrid_mem; 623 624 size = (sqdepth + rqdepth) * IRDMA_QP_WQE_MIN_SIZE; 625 size += (IRDMA_SHADOW_AREA_SIZE << 3); 626 627 mem->size = ALIGN(size, 256); 628 mem->va = dma_alloc_coherent(iwdev->rf->hw.device, mem->size, 629 &mem->pa, GFP_KERNEL); 630 if (!mem->va) { 631 kfree(iwqp->kqp.sq_wrid_mem); 632 iwqp->kqp.sq_wrid_mem = NULL; 633 kfree(iwqp->kqp.rq_wrid_mem); 634 iwqp->kqp.rq_wrid_mem = NULL; 635 return -ENOMEM; 636 } 637 638 ukinfo->sq = mem->va; 639 info->sq_pa = mem->pa; 640 ukinfo->rq = &ukinfo->sq[sqdepth]; 641 info->rq_pa = info->sq_pa + (sqdepth * IRDMA_QP_WQE_MIN_SIZE); 642 ukinfo->shadow_area = ukinfo->rq[rqdepth].elem; 643 info->shadow_area_pa = info->rq_pa + (rqdepth * IRDMA_QP_WQE_MIN_SIZE); 644 ukinfo->sq_size = sqdepth >> sqshift; 645 ukinfo->rq_size = rqdepth >> rqshift; 646 ukinfo->qp_id = iwqp->ibqp.qp_num; 647 648 init_attr->cap.max_send_wr = (sqdepth - IRDMA_SQ_RSVD) >> sqshift; 649 init_attr->cap.max_recv_wr = (rqdepth - IRDMA_RQ_RSVD) >> rqshift; 650 651 return 0; 652 } 653 654 static int irdma_cqp_create_qp_cmd(struct irdma_qp *iwqp) 655 { 656 struct irdma_pci_f *rf = iwqp->iwdev->rf; 657 struct irdma_cqp_request *cqp_request; 658 struct cqp_cmds_info *cqp_info; 659 struct irdma_create_qp_info *qp_info; 660 int status; 661 662 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true); 663 if (!cqp_request) 664 return -ENOMEM; 665 666 cqp_info = &cqp_request->info; 667 qp_info = &cqp_request->info.in.u.qp_create.info; 668 memset(qp_info, 0, sizeof(*qp_info)); 669 qp_info->mac_valid = true; 670 qp_info->cq_num_valid = true; 671 qp_info->next_iwarp_state = IRDMA_QP_STATE_IDLE; 672 673 cqp_info->cqp_cmd = IRDMA_OP_QP_CREATE; 674 cqp_info->post_sq = 1; 675 cqp_info->in.u.qp_create.qp = &iwqp->sc_qp; 676 cqp_info->in.u.qp_create.scratch = (uintptr_t)cqp_request; 677 status = irdma_handle_cqp_op(rf, cqp_request); 678 irdma_put_cqp_request(&rf->cqp, cqp_request); 679 680 return status; 681 } 682 683 static void irdma_roce_fill_and_set_qpctx_info(struct irdma_qp *iwqp, 684 struct irdma_qp_host_ctx_info *ctx_info) 685 { 686 struct irdma_device *iwdev = iwqp->iwdev; 687 struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; 688 struct irdma_roce_offload_info *roce_info; 689 struct irdma_udp_offload_info *udp_info; 690 691 udp_info = &iwqp->udp_info; 692 udp_info->snd_mss = ib_mtu_enum_to_int(ib_mtu_int_to_enum(iwdev->vsi.mtu)); 693 udp_info->cwnd = iwdev->roce_cwnd; 694 udp_info->rexmit_thresh = 2; 695 udp_info->rnr_nak_thresh = 2; 696 udp_info->src_port = 0xc000; 697 udp_info->dst_port = ROCE_V2_UDP_DPORT; 698 roce_info = &iwqp->roce_info; 699 ether_addr_copy(roce_info->mac_addr, iwdev->netdev->dev_addr); 700 701 roce_info->rd_en = true; 702 roce_info->wr_rdresp_en = true; 703 roce_info->bind_en = true; 704 roce_info->dcqcn_en = false; 705 roce_info->rtomin = 5; 706 707 roce_info->ack_credits = iwdev->roce_ackcreds; 708 roce_info->ird_size = dev->hw_attrs.max_hw_ird; 709 roce_info->ord_size = dev->hw_attrs.max_hw_ord; 710 711 if (!iwqp->user_mode) { 712 roce_info->priv_mode_en = true; 713 roce_info->fast_reg_en = true; 714 roce_info->udprivcq_en = true; 715 } 716 roce_info->roce_tver = 0; 717 718 ctx_info->roce_info = &iwqp->roce_info; 719 ctx_info->udp_info = &iwqp->udp_info; 720 irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info); 721 } 722 723 static void irdma_iw_fill_and_set_qpctx_info(struct irdma_qp *iwqp, 724 struct irdma_qp_host_ctx_info *ctx_info) 725 { 726 struct irdma_device *iwdev = iwqp->iwdev; 727 struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; 728 struct irdma_iwarp_offload_info *iwarp_info; 729 730 iwarp_info = &iwqp->iwarp_info; 731 ether_addr_copy(iwarp_info->mac_addr, iwdev->netdev->dev_addr); 732 iwarp_info->rd_en = true; 733 iwarp_info->wr_rdresp_en = true; 734 iwarp_info->bind_en = true; 735 iwarp_info->ecn_en = true; 736 iwarp_info->rtomin = 5; 737 738 if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) 739 iwarp_info->ib_rd_en = true; 740 if (!iwqp->user_mode) { 741 iwarp_info->priv_mode_en = true; 742 iwarp_info->fast_reg_en = true; 743 } 744 iwarp_info->ddp_ver = 1; 745 iwarp_info->rdmap_ver = 1; 746 747 ctx_info->iwarp_info = &iwqp->iwarp_info; 748 ctx_info->iwarp_info_valid = true; 749 irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info); 750 ctx_info->iwarp_info_valid = false; 751 } 752 753 static int irdma_validate_qp_attrs(struct ib_qp_init_attr *init_attr, 754 struct irdma_device *iwdev) 755 { 756 struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; 757 struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs; 758 759 if (init_attr->create_flags) 760 return -EOPNOTSUPP; 761 762 if (init_attr->cap.max_inline_data > uk_attrs->max_hw_inline || 763 init_attr->cap.max_send_sge > uk_attrs->max_hw_wq_frags || 764 init_attr->cap.max_recv_sge > uk_attrs->max_hw_wq_frags) 765 return -EINVAL; 766 767 if (rdma_protocol_roce(&iwdev->ibdev, 1)) { 768 if (init_attr->qp_type != IB_QPT_RC && 769 init_attr->qp_type != IB_QPT_UD && 770 init_attr->qp_type != IB_QPT_GSI) 771 return -EOPNOTSUPP; 772 } else { 773 if (init_attr->qp_type != IB_QPT_RC) 774 return -EOPNOTSUPP; 775 } 776 777 return 0; 778 } 779 780 static void irdma_flush_worker(struct work_struct *work) 781 { 782 struct delayed_work *dwork = to_delayed_work(work); 783 struct irdma_qp *iwqp = container_of(dwork, struct irdma_qp, dwork_flush); 784 785 irdma_generate_flush_completions(iwqp); 786 } 787 788 /** 789 * irdma_create_qp - create qp 790 * @ibqp: ptr of qp 791 * @init_attr: attributes for qp 792 * @udata: user data for create qp 793 */ 794 static int irdma_create_qp(struct ib_qp *ibqp, 795 struct ib_qp_init_attr *init_attr, 796 struct ib_udata *udata) 797 { 798 #define IRDMA_CREATE_QP_MIN_REQ_LEN offsetofend(struct irdma_create_qp_req, user_compl_ctx) 799 #define IRDMA_CREATE_QP_MIN_RESP_LEN offsetofend(struct irdma_create_qp_resp, rsvd) 800 struct ib_pd *ibpd = ibqp->pd; 801 struct irdma_pd *iwpd = to_iwpd(ibpd); 802 struct irdma_device *iwdev = to_iwdev(ibpd->device); 803 struct irdma_pci_f *rf = iwdev->rf; 804 struct irdma_qp *iwqp = to_iwqp(ibqp); 805 struct irdma_create_qp_req req = {}; 806 struct irdma_create_qp_resp uresp = {}; 807 u32 qp_num = 0; 808 int err_code; 809 int sq_size; 810 int rq_size; 811 struct irdma_sc_qp *qp; 812 struct irdma_sc_dev *dev = &rf->sc_dev; 813 struct irdma_uk_attrs *uk_attrs = &dev->hw_attrs.uk_attrs; 814 struct irdma_qp_init_info init_info = {}; 815 struct irdma_qp_host_ctx_info *ctx_info; 816 unsigned long flags; 817 818 err_code = irdma_validate_qp_attrs(init_attr, iwdev); 819 if (err_code) 820 return err_code; 821 822 if (udata && (udata->inlen < IRDMA_CREATE_QP_MIN_REQ_LEN || 823 udata->outlen < IRDMA_CREATE_QP_MIN_RESP_LEN)) 824 return -EINVAL; 825 826 sq_size = init_attr->cap.max_send_wr; 827 rq_size = init_attr->cap.max_recv_wr; 828 829 init_info.vsi = &iwdev->vsi; 830 init_info.qp_uk_init_info.uk_attrs = uk_attrs; 831 init_info.qp_uk_init_info.sq_size = sq_size; 832 init_info.qp_uk_init_info.rq_size = rq_size; 833 init_info.qp_uk_init_info.max_sq_frag_cnt = init_attr->cap.max_send_sge; 834 init_info.qp_uk_init_info.max_rq_frag_cnt = init_attr->cap.max_recv_sge; 835 init_info.qp_uk_init_info.max_inline_data = init_attr->cap.max_inline_data; 836 837 qp = &iwqp->sc_qp; 838 qp->qp_uk.back_qp = iwqp; 839 qp->push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX; 840 841 iwqp->iwdev = iwdev; 842 iwqp->q2_ctx_mem.size = ALIGN(IRDMA_Q2_BUF_SIZE + IRDMA_QP_CTX_SIZE, 843 256); 844 iwqp->q2_ctx_mem.va = dma_alloc_coherent(dev->hw->device, 845 iwqp->q2_ctx_mem.size, 846 &iwqp->q2_ctx_mem.pa, 847 GFP_KERNEL); 848 if (!iwqp->q2_ctx_mem.va) 849 return -ENOMEM; 850 851 init_info.q2 = iwqp->q2_ctx_mem.va; 852 init_info.q2_pa = iwqp->q2_ctx_mem.pa; 853 init_info.host_ctx = (__le64 *)(init_info.q2 + IRDMA_Q2_BUF_SIZE); 854 init_info.host_ctx_pa = init_info.q2_pa + IRDMA_Q2_BUF_SIZE; 855 856 if (init_attr->qp_type == IB_QPT_GSI) 857 qp_num = 1; 858 else 859 err_code = irdma_alloc_rsrc(rf, rf->allocated_qps, rf->max_qp, 860 &qp_num, &rf->next_qp); 861 if (err_code) 862 goto error; 863 864 iwqp->iwpd = iwpd; 865 iwqp->ibqp.qp_num = qp_num; 866 qp = &iwqp->sc_qp; 867 iwqp->iwscq = to_iwcq(init_attr->send_cq); 868 iwqp->iwrcq = to_iwcq(init_attr->recv_cq); 869 iwqp->host_ctx.va = init_info.host_ctx; 870 iwqp->host_ctx.pa = init_info.host_ctx_pa; 871 iwqp->host_ctx.size = IRDMA_QP_CTX_SIZE; 872 873 init_info.pd = &iwpd->sc_pd; 874 init_info.qp_uk_init_info.qp_id = iwqp->ibqp.qp_num; 875 if (!rdma_protocol_roce(&iwdev->ibdev, 1)) 876 init_info.qp_uk_init_info.first_sq_wq = 1; 877 iwqp->ctx_info.qp_compl_ctx = (uintptr_t)qp; 878 init_waitqueue_head(&iwqp->waitq); 879 init_waitqueue_head(&iwqp->mod_qp_waitq); 880 881 if (udata) { 882 err_code = ib_copy_from_udata(&req, udata, 883 min(sizeof(req), udata->inlen)); 884 if (err_code) { 885 ibdev_dbg(&iwdev->ibdev, 886 "VERBS: ib_copy_from_data fail\n"); 887 goto error; 888 } 889 890 iwqp->ctx_info.qp_compl_ctx = req.user_compl_ctx; 891 iwqp->user_mode = 1; 892 if (req.user_wqe_bufs) { 893 struct irdma_ucontext *ucontext = 894 rdma_udata_to_drv_context(udata, 895 struct irdma_ucontext, 896 ibucontext); 897 898 init_info.qp_uk_init_info.legacy_mode = ucontext->legacy_mode; 899 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); 900 iwqp->iwpbl = irdma_get_pbl((unsigned long)req.user_wqe_bufs, 901 &ucontext->qp_reg_mem_list); 902 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); 903 904 if (!iwqp->iwpbl) { 905 err_code = -ENODATA; 906 ibdev_dbg(&iwdev->ibdev, "VERBS: no pbl info\n"); 907 goto error; 908 } 909 } 910 init_info.qp_uk_init_info.abi_ver = iwpd->sc_pd.abi_ver; 911 irdma_setup_virt_qp(iwdev, iwqp, &init_info); 912 } else { 913 INIT_DELAYED_WORK(&iwqp->dwork_flush, irdma_flush_worker); 914 init_info.qp_uk_init_info.abi_ver = IRDMA_ABI_VER; 915 err_code = irdma_setup_kmode_qp(iwdev, iwqp, &init_info, init_attr); 916 } 917 918 if (err_code) { 919 ibdev_dbg(&iwdev->ibdev, "VERBS: setup qp failed\n"); 920 goto error; 921 } 922 923 if (rdma_protocol_roce(&iwdev->ibdev, 1)) { 924 if (init_attr->qp_type == IB_QPT_RC) { 925 init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_RC; 926 init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM | 927 IRDMA_WRITE_WITH_IMM | 928 IRDMA_ROCE; 929 } else { 930 init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_ROCE_UD; 931 init_info.qp_uk_init_info.qp_caps = IRDMA_SEND_WITH_IMM | 932 IRDMA_ROCE; 933 } 934 } else { 935 init_info.qp_uk_init_info.type = IRDMA_QP_TYPE_IWARP; 936 init_info.qp_uk_init_info.qp_caps = IRDMA_WRITE_WITH_IMM; 937 } 938 939 if (dev->hw_attrs.uk_attrs.hw_rev > IRDMA_GEN_1) 940 init_info.qp_uk_init_info.qp_caps |= IRDMA_PUSH_MODE; 941 942 err_code = irdma_sc_qp_init(qp, &init_info); 943 if (err_code) { 944 ibdev_dbg(&iwdev->ibdev, "VERBS: qp_init fail\n"); 945 goto error; 946 } 947 948 ctx_info = &iwqp->ctx_info; 949 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; 950 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; 951 952 if (rdma_protocol_roce(&iwdev->ibdev, 1)) 953 irdma_roce_fill_and_set_qpctx_info(iwqp, ctx_info); 954 else 955 irdma_iw_fill_and_set_qpctx_info(iwqp, ctx_info); 956 957 err_code = irdma_cqp_create_qp_cmd(iwqp); 958 if (err_code) 959 goto error; 960 961 refcount_set(&iwqp->refcnt, 1); 962 spin_lock_init(&iwqp->lock); 963 spin_lock_init(&iwqp->sc_qp.pfpdu.lock); 964 iwqp->sig_all = (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR) ? 1 : 0; 965 rf->qp_table[qp_num] = iwqp; 966 iwqp->max_send_wr = sq_size; 967 iwqp->max_recv_wr = rq_size; 968 969 if (rdma_protocol_roce(&iwdev->ibdev, 1)) { 970 if (dev->ws_add(&iwdev->vsi, 0)) { 971 irdma_cqp_qp_destroy_cmd(&rf->sc_dev, &iwqp->sc_qp); 972 err_code = -EINVAL; 973 goto error; 974 } 975 976 irdma_qp_add_qos(&iwqp->sc_qp); 977 } 978 979 if (udata) { 980 /* GEN_1 legacy support with libi40iw does not have expanded uresp struct */ 981 if (udata->outlen < sizeof(uresp)) { 982 uresp.lsmm = 1; 983 uresp.push_idx = IRDMA_INVALID_PUSH_PAGE_INDEX_GEN_1; 984 } else { 985 if (rdma_protocol_iwarp(&iwdev->ibdev, 1)) 986 uresp.lsmm = 1; 987 } 988 uresp.actual_sq_size = sq_size; 989 uresp.actual_rq_size = rq_size; 990 uresp.qp_id = qp_num; 991 uresp.qp_caps = qp->qp_uk.qp_caps; 992 993 err_code = ib_copy_to_udata(udata, &uresp, 994 min(sizeof(uresp), udata->outlen)); 995 if (err_code) { 996 ibdev_dbg(&iwdev->ibdev, "VERBS: copy_to_udata failed\n"); 997 irdma_destroy_qp(&iwqp->ibqp, udata); 998 return err_code; 999 } 1000 } 1001 1002 init_completion(&iwqp->free_qp); 1003 return 0; 1004 1005 error: 1006 irdma_free_qp_rsrc(iwqp); 1007 return err_code; 1008 } 1009 1010 static int irdma_get_ib_acc_flags(struct irdma_qp *iwqp) 1011 { 1012 int acc_flags = 0; 1013 1014 if (rdma_protocol_roce(iwqp->ibqp.device, 1)) { 1015 if (iwqp->roce_info.wr_rdresp_en) { 1016 acc_flags |= IB_ACCESS_LOCAL_WRITE; 1017 acc_flags |= IB_ACCESS_REMOTE_WRITE; 1018 } 1019 if (iwqp->roce_info.rd_en) 1020 acc_flags |= IB_ACCESS_REMOTE_READ; 1021 if (iwqp->roce_info.bind_en) 1022 acc_flags |= IB_ACCESS_MW_BIND; 1023 } else { 1024 if (iwqp->iwarp_info.wr_rdresp_en) { 1025 acc_flags |= IB_ACCESS_LOCAL_WRITE; 1026 acc_flags |= IB_ACCESS_REMOTE_WRITE; 1027 } 1028 if (iwqp->iwarp_info.rd_en) 1029 acc_flags |= IB_ACCESS_REMOTE_READ; 1030 if (iwqp->iwarp_info.bind_en) 1031 acc_flags |= IB_ACCESS_MW_BIND; 1032 } 1033 return acc_flags; 1034 } 1035 1036 /** 1037 * irdma_query_qp - query qp attributes 1038 * @ibqp: qp pointer 1039 * @attr: attributes pointer 1040 * @attr_mask: Not used 1041 * @init_attr: qp attributes to return 1042 */ 1043 static int irdma_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1044 int attr_mask, struct ib_qp_init_attr *init_attr) 1045 { 1046 struct irdma_qp *iwqp = to_iwqp(ibqp); 1047 struct irdma_sc_qp *qp = &iwqp->sc_qp; 1048 1049 memset(attr, 0, sizeof(*attr)); 1050 memset(init_attr, 0, sizeof(*init_attr)); 1051 1052 attr->qp_state = iwqp->ibqp_state; 1053 attr->cur_qp_state = iwqp->ibqp_state; 1054 attr->cap.max_send_wr = iwqp->max_send_wr; 1055 attr->cap.max_recv_wr = iwqp->max_recv_wr; 1056 attr->cap.max_inline_data = qp->qp_uk.max_inline_data; 1057 attr->cap.max_send_sge = qp->qp_uk.max_sq_frag_cnt; 1058 attr->cap.max_recv_sge = qp->qp_uk.max_rq_frag_cnt; 1059 attr->qp_access_flags = irdma_get_ib_acc_flags(iwqp); 1060 attr->port_num = 1; 1061 if (rdma_protocol_roce(ibqp->device, 1)) { 1062 attr->path_mtu = ib_mtu_int_to_enum(iwqp->udp_info.snd_mss); 1063 attr->qkey = iwqp->roce_info.qkey; 1064 attr->rq_psn = iwqp->udp_info.epsn; 1065 attr->sq_psn = iwqp->udp_info.psn_nxt; 1066 attr->dest_qp_num = iwqp->roce_info.dest_qp; 1067 attr->pkey_index = iwqp->roce_info.p_key; 1068 attr->retry_cnt = iwqp->udp_info.rexmit_thresh; 1069 attr->rnr_retry = iwqp->udp_info.rnr_nak_thresh; 1070 attr->max_rd_atomic = iwqp->roce_info.ord_size; 1071 attr->max_dest_rd_atomic = iwqp->roce_info.ird_size; 1072 } 1073 1074 init_attr->event_handler = iwqp->ibqp.event_handler; 1075 init_attr->qp_context = iwqp->ibqp.qp_context; 1076 init_attr->send_cq = iwqp->ibqp.send_cq; 1077 init_attr->recv_cq = iwqp->ibqp.recv_cq; 1078 init_attr->cap = attr->cap; 1079 1080 return 0; 1081 } 1082 1083 /** 1084 * irdma_query_pkey - Query partition key 1085 * @ibdev: device pointer from stack 1086 * @port: port number 1087 * @index: index of pkey 1088 * @pkey: pointer to store the pkey 1089 */ 1090 static int irdma_query_pkey(struct ib_device *ibdev, u32 port, u16 index, 1091 u16 *pkey) 1092 { 1093 if (index >= IRDMA_PKEY_TBL_SZ) 1094 return -EINVAL; 1095 1096 *pkey = IRDMA_DEFAULT_PKEY; 1097 return 0; 1098 } 1099 1100 /** 1101 * irdma_modify_qp_roce - modify qp request 1102 * @ibqp: qp's pointer for modify 1103 * @attr: access attributes 1104 * @attr_mask: state mask 1105 * @udata: user data 1106 */ 1107 int irdma_modify_qp_roce(struct ib_qp *ibqp, struct ib_qp_attr *attr, 1108 int attr_mask, struct ib_udata *udata) 1109 { 1110 #define IRDMA_MODIFY_QP_MIN_REQ_LEN offsetofend(struct irdma_modify_qp_req, rq_flush) 1111 #define IRDMA_MODIFY_QP_MIN_RESP_LEN offsetofend(struct irdma_modify_qp_resp, push_valid) 1112 struct irdma_pd *iwpd = to_iwpd(ibqp->pd); 1113 struct irdma_qp *iwqp = to_iwqp(ibqp); 1114 struct irdma_device *iwdev = iwqp->iwdev; 1115 struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; 1116 struct irdma_qp_host_ctx_info *ctx_info; 1117 struct irdma_roce_offload_info *roce_info; 1118 struct irdma_udp_offload_info *udp_info; 1119 struct irdma_modify_qp_info info = {}; 1120 struct irdma_modify_qp_resp uresp = {}; 1121 struct irdma_modify_qp_req ureq = {}; 1122 unsigned long flags; 1123 u8 issue_modify_qp = 0; 1124 int ret = 0; 1125 1126 ctx_info = &iwqp->ctx_info; 1127 roce_info = &iwqp->roce_info; 1128 udp_info = &iwqp->udp_info; 1129 1130 if (udata) { 1131 /* udata inlen/outlen can be 0 when supporting legacy libi40iw */ 1132 if ((udata->inlen && udata->inlen < IRDMA_MODIFY_QP_MIN_REQ_LEN) || 1133 (udata->outlen && udata->outlen < IRDMA_MODIFY_QP_MIN_RESP_LEN)) 1134 return -EINVAL; 1135 } 1136 1137 if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS) 1138 return -EOPNOTSUPP; 1139 1140 if (attr_mask & IB_QP_DEST_QPN) 1141 roce_info->dest_qp = attr->dest_qp_num; 1142 1143 if (attr_mask & IB_QP_PKEY_INDEX) { 1144 ret = irdma_query_pkey(ibqp->device, 0, attr->pkey_index, 1145 &roce_info->p_key); 1146 if (ret) 1147 return ret; 1148 } 1149 1150 if (attr_mask & IB_QP_QKEY) 1151 roce_info->qkey = attr->qkey; 1152 1153 if (attr_mask & IB_QP_PATH_MTU) 1154 udp_info->snd_mss = ib_mtu_enum_to_int(attr->path_mtu); 1155 1156 if (attr_mask & IB_QP_SQ_PSN) { 1157 udp_info->psn_nxt = attr->sq_psn; 1158 udp_info->lsn = 0xffff; 1159 udp_info->psn_una = attr->sq_psn; 1160 udp_info->psn_max = attr->sq_psn; 1161 } 1162 1163 if (attr_mask & IB_QP_RQ_PSN) 1164 udp_info->epsn = attr->rq_psn; 1165 1166 if (attr_mask & IB_QP_RNR_RETRY) 1167 udp_info->rnr_nak_thresh = attr->rnr_retry; 1168 1169 if (attr_mask & IB_QP_RETRY_CNT) 1170 udp_info->rexmit_thresh = attr->retry_cnt; 1171 1172 ctx_info->roce_info->pd_id = iwpd->sc_pd.pd_id; 1173 1174 if (attr_mask & IB_QP_AV) { 1175 struct irdma_av *av = &iwqp->roce_ah.av; 1176 const struct ib_gid_attr *sgid_attr; 1177 u16 vlan_id = VLAN_N_VID; 1178 u32 local_ip[4]; 1179 1180 memset(&iwqp->roce_ah, 0, sizeof(iwqp->roce_ah)); 1181 if (attr->ah_attr.ah_flags & IB_AH_GRH) { 1182 udp_info->ttl = attr->ah_attr.grh.hop_limit; 1183 udp_info->flow_label = attr->ah_attr.grh.flow_label; 1184 udp_info->tos = attr->ah_attr.grh.traffic_class; 1185 udp_info->src_port = 1186 rdma_get_udp_sport(udp_info->flow_label, 1187 ibqp->qp_num, 1188 roce_info->dest_qp); 1189 irdma_qp_rem_qos(&iwqp->sc_qp); 1190 dev->ws_remove(iwqp->sc_qp.vsi, ctx_info->user_pri); 1191 ctx_info->user_pri = rt_tos2priority(udp_info->tos); 1192 iwqp->sc_qp.user_pri = ctx_info->user_pri; 1193 if (dev->ws_add(iwqp->sc_qp.vsi, ctx_info->user_pri)) 1194 return -ENOMEM; 1195 irdma_qp_add_qos(&iwqp->sc_qp); 1196 } 1197 sgid_attr = attr->ah_attr.grh.sgid_attr; 1198 ret = rdma_read_gid_l2_fields(sgid_attr, &vlan_id, 1199 ctx_info->roce_info->mac_addr); 1200 if (ret) 1201 return ret; 1202 1203 if (vlan_id >= VLAN_N_VID && iwdev->dcb_vlan_mode) 1204 vlan_id = 0; 1205 if (vlan_id < VLAN_N_VID) { 1206 udp_info->insert_vlan_tag = true; 1207 udp_info->vlan_tag = vlan_id | 1208 ctx_info->user_pri << VLAN_PRIO_SHIFT; 1209 } else { 1210 udp_info->insert_vlan_tag = false; 1211 } 1212 1213 av->attrs = attr->ah_attr; 1214 rdma_gid2ip((struct sockaddr *)&av->sgid_addr, &sgid_attr->gid); 1215 rdma_gid2ip((struct sockaddr *)&av->dgid_addr, &attr->ah_attr.grh.dgid); 1216 av->net_type = rdma_gid_attr_network_type(sgid_attr); 1217 if (av->net_type == RDMA_NETWORK_IPV6) { 1218 __be32 *daddr = 1219 av->dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32; 1220 __be32 *saddr = 1221 av->sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32; 1222 1223 irdma_copy_ip_ntohl(&udp_info->dest_ip_addr[0], daddr); 1224 irdma_copy_ip_ntohl(&udp_info->local_ipaddr[0], saddr); 1225 1226 udp_info->ipv4 = false; 1227 irdma_copy_ip_ntohl(local_ip, daddr); 1228 1229 udp_info->arp_idx = irdma_arp_table(iwdev->rf, 1230 &local_ip[0], 1231 false, NULL, 1232 IRDMA_ARP_RESOLVE); 1233 } else if (av->net_type == RDMA_NETWORK_IPV4) { 1234 __be32 saddr = av->sgid_addr.saddr_in.sin_addr.s_addr; 1235 __be32 daddr = av->dgid_addr.saddr_in.sin_addr.s_addr; 1236 1237 local_ip[0] = ntohl(daddr); 1238 1239 udp_info->ipv4 = true; 1240 udp_info->dest_ip_addr[0] = 0; 1241 udp_info->dest_ip_addr[1] = 0; 1242 udp_info->dest_ip_addr[2] = 0; 1243 udp_info->dest_ip_addr[3] = local_ip[0]; 1244 1245 udp_info->local_ipaddr[0] = 0; 1246 udp_info->local_ipaddr[1] = 0; 1247 udp_info->local_ipaddr[2] = 0; 1248 udp_info->local_ipaddr[3] = ntohl(saddr); 1249 } 1250 udp_info->arp_idx = 1251 irdma_add_arp(iwdev->rf, local_ip, udp_info->ipv4, 1252 attr->ah_attr.roce.dmac); 1253 } 1254 1255 if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) { 1256 if (attr->max_rd_atomic > dev->hw_attrs.max_hw_ord) { 1257 ibdev_err(&iwdev->ibdev, 1258 "rd_atomic = %d, above max_hw_ord=%d\n", 1259 attr->max_rd_atomic, 1260 dev->hw_attrs.max_hw_ord); 1261 return -EINVAL; 1262 } 1263 if (attr->max_rd_atomic) 1264 roce_info->ord_size = attr->max_rd_atomic; 1265 info.ord_valid = true; 1266 } 1267 1268 if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) { 1269 if (attr->max_dest_rd_atomic > dev->hw_attrs.max_hw_ird) { 1270 ibdev_err(&iwdev->ibdev, 1271 "rd_atomic = %d, above max_hw_ird=%d\n", 1272 attr->max_rd_atomic, 1273 dev->hw_attrs.max_hw_ird); 1274 return -EINVAL; 1275 } 1276 if (attr->max_dest_rd_atomic) 1277 roce_info->ird_size = attr->max_dest_rd_atomic; 1278 } 1279 1280 if (attr_mask & IB_QP_ACCESS_FLAGS) { 1281 if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) 1282 roce_info->wr_rdresp_en = true; 1283 if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) 1284 roce_info->wr_rdresp_en = true; 1285 if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) 1286 roce_info->rd_en = true; 1287 } 1288 1289 wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend)); 1290 1291 ibdev_dbg(&iwdev->ibdev, 1292 "VERBS: caller: %pS qp_id=%d to_ibqpstate=%d ibqpstate=%d irdma_qpstate=%d attr_mask=0x%x\n", 1293 __builtin_return_address(0), ibqp->qp_num, attr->qp_state, 1294 iwqp->ibqp_state, iwqp->iwarp_state, attr_mask); 1295 1296 spin_lock_irqsave(&iwqp->lock, flags); 1297 if (attr_mask & IB_QP_STATE) { 1298 if (!ib_modify_qp_is_ok(iwqp->ibqp_state, attr->qp_state, 1299 iwqp->ibqp.qp_type, attr_mask)) { 1300 ibdev_warn(&iwdev->ibdev, "modify_qp invalid for qp_id=%d, old_state=0x%x, new_state=0x%x\n", 1301 iwqp->ibqp.qp_num, iwqp->ibqp_state, 1302 attr->qp_state); 1303 ret = -EINVAL; 1304 goto exit; 1305 } 1306 info.curr_iwarp_state = iwqp->iwarp_state; 1307 1308 switch (attr->qp_state) { 1309 case IB_QPS_INIT: 1310 if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) { 1311 ret = -EINVAL; 1312 goto exit; 1313 } 1314 1315 if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) { 1316 info.next_iwarp_state = IRDMA_QP_STATE_IDLE; 1317 issue_modify_qp = 1; 1318 } 1319 break; 1320 case IB_QPS_RTR: 1321 if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) { 1322 ret = -EINVAL; 1323 goto exit; 1324 } 1325 info.arp_cache_idx_valid = true; 1326 info.cq_num_valid = true; 1327 info.next_iwarp_state = IRDMA_QP_STATE_RTR; 1328 issue_modify_qp = 1; 1329 break; 1330 case IB_QPS_RTS: 1331 if (iwqp->ibqp_state < IB_QPS_RTR || 1332 iwqp->ibqp_state == IB_QPS_ERR) { 1333 ret = -EINVAL; 1334 goto exit; 1335 } 1336 1337 info.arp_cache_idx_valid = true; 1338 info.cq_num_valid = true; 1339 info.ord_valid = true; 1340 info.next_iwarp_state = IRDMA_QP_STATE_RTS; 1341 issue_modify_qp = 1; 1342 if (iwdev->push_mode && udata && 1343 iwqp->sc_qp.push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX && 1344 dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { 1345 spin_unlock_irqrestore(&iwqp->lock, flags); 1346 irdma_alloc_push_page(iwqp); 1347 spin_lock_irqsave(&iwqp->lock, flags); 1348 } 1349 break; 1350 case IB_QPS_SQD: 1351 if (iwqp->iwarp_state == IRDMA_QP_STATE_SQD) 1352 goto exit; 1353 1354 if (iwqp->iwarp_state != IRDMA_QP_STATE_RTS) { 1355 ret = -EINVAL; 1356 goto exit; 1357 } 1358 1359 info.next_iwarp_state = IRDMA_QP_STATE_SQD; 1360 issue_modify_qp = 1; 1361 break; 1362 case IB_QPS_SQE: 1363 case IB_QPS_ERR: 1364 case IB_QPS_RESET: 1365 if (iwqp->iwarp_state == IRDMA_QP_STATE_RTS) { 1366 spin_unlock_irqrestore(&iwqp->lock, flags); 1367 info.next_iwarp_state = IRDMA_QP_STATE_SQD; 1368 irdma_hw_modify_qp(iwdev, iwqp, &info, true); 1369 spin_lock_irqsave(&iwqp->lock, flags); 1370 } 1371 1372 if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) { 1373 spin_unlock_irqrestore(&iwqp->lock, flags); 1374 if (udata && udata->inlen) { 1375 if (ib_copy_from_udata(&ureq, udata, 1376 min(sizeof(ureq), udata->inlen))) 1377 return -EINVAL; 1378 1379 irdma_flush_wqes(iwqp, 1380 (ureq.sq_flush ? IRDMA_FLUSH_SQ : 0) | 1381 (ureq.rq_flush ? IRDMA_FLUSH_RQ : 0) | 1382 IRDMA_REFLUSH); 1383 } 1384 return 0; 1385 } 1386 1387 info.next_iwarp_state = IRDMA_QP_STATE_ERROR; 1388 issue_modify_qp = 1; 1389 break; 1390 default: 1391 ret = -EINVAL; 1392 goto exit; 1393 } 1394 1395 iwqp->ibqp_state = attr->qp_state; 1396 } 1397 1398 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; 1399 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; 1400 irdma_sc_qp_setctx_roce(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info); 1401 spin_unlock_irqrestore(&iwqp->lock, flags); 1402 1403 if (attr_mask & IB_QP_STATE) { 1404 if (issue_modify_qp) { 1405 ctx_info->rem_endpoint_idx = udp_info->arp_idx; 1406 if (irdma_hw_modify_qp(iwdev, iwqp, &info, true)) 1407 return -EINVAL; 1408 spin_lock_irqsave(&iwqp->lock, flags); 1409 if (iwqp->iwarp_state == info.curr_iwarp_state) { 1410 iwqp->iwarp_state = info.next_iwarp_state; 1411 iwqp->ibqp_state = attr->qp_state; 1412 } 1413 if (iwqp->ibqp_state > IB_QPS_RTS && 1414 !iwqp->flush_issued) { 1415 spin_unlock_irqrestore(&iwqp->lock, flags); 1416 irdma_flush_wqes(iwqp, IRDMA_FLUSH_SQ | 1417 IRDMA_FLUSH_RQ | 1418 IRDMA_FLUSH_WAIT); 1419 iwqp->flush_issued = 1; 1420 } else { 1421 spin_unlock_irqrestore(&iwqp->lock, flags); 1422 } 1423 } else { 1424 iwqp->ibqp_state = attr->qp_state; 1425 } 1426 if (udata && udata->outlen && dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { 1427 struct irdma_ucontext *ucontext; 1428 1429 ucontext = rdma_udata_to_drv_context(udata, 1430 struct irdma_ucontext, ibucontext); 1431 if (iwqp->sc_qp.push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX && 1432 !iwqp->push_wqe_mmap_entry && 1433 !irdma_setup_push_mmap_entries(ucontext, iwqp, 1434 &uresp.push_wqe_mmap_key, &uresp.push_db_mmap_key)) { 1435 uresp.push_valid = 1; 1436 uresp.push_offset = iwqp->sc_qp.push_offset; 1437 } 1438 ret = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), 1439 udata->outlen)); 1440 if (ret) { 1441 irdma_remove_push_mmap_entries(iwqp); 1442 ibdev_dbg(&iwdev->ibdev, 1443 "VERBS: copy_to_udata failed\n"); 1444 return ret; 1445 } 1446 } 1447 } 1448 1449 return 0; 1450 exit: 1451 spin_unlock_irqrestore(&iwqp->lock, flags); 1452 1453 return ret; 1454 } 1455 1456 /** 1457 * irdma_modify_qp - modify qp request 1458 * @ibqp: qp's pointer for modify 1459 * @attr: access attributes 1460 * @attr_mask: state mask 1461 * @udata: user data 1462 */ 1463 int irdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask, 1464 struct ib_udata *udata) 1465 { 1466 #define IRDMA_MODIFY_QP_MIN_REQ_LEN offsetofend(struct irdma_modify_qp_req, rq_flush) 1467 #define IRDMA_MODIFY_QP_MIN_RESP_LEN offsetofend(struct irdma_modify_qp_resp, push_valid) 1468 struct irdma_qp *iwqp = to_iwqp(ibqp); 1469 struct irdma_device *iwdev = iwqp->iwdev; 1470 struct irdma_sc_dev *dev = &iwdev->rf->sc_dev; 1471 struct irdma_qp_host_ctx_info *ctx_info; 1472 struct irdma_tcp_offload_info *tcp_info; 1473 struct irdma_iwarp_offload_info *offload_info; 1474 struct irdma_modify_qp_info info = {}; 1475 struct irdma_modify_qp_resp uresp = {}; 1476 struct irdma_modify_qp_req ureq = {}; 1477 u8 issue_modify_qp = 0; 1478 u8 dont_wait = 0; 1479 int err; 1480 unsigned long flags; 1481 1482 if (udata) { 1483 /* udata inlen/outlen can be 0 when supporting legacy libi40iw */ 1484 if ((udata->inlen && udata->inlen < IRDMA_MODIFY_QP_MIN_REQ_LEN) || 1485 (udata->outlen && udata->outlen < IRDMA_MODIFY_QP_MIN_RESP_LEN)) 1486 return -EINVAL; 1487 } 1488 1489 if (attr_mask & ~IB_QP_ATTR_STANDARD_BITS) 1490 return -EOPNOTSUPP; 1491 1492 ctx_info = &iwqp->ctx_info; 1493 offload_info = &iwqp->iwarp_info; 1494 tcp_info = &iwqp->tcp_info; 1495 wait_event(iwqp->mod_qp_waitq, !atomic_read(&iwqp->hw_mod_qp_pend)); 1496 ibdev_dbg(&iwdev->ibdev, 1497 "VERBS: caller: %pS qp_id=%d to_ibqpstate=%d ibqpstate=%d irdma_qpstate=%d last_aeq=%d hw_tcp_state=%d hw_iwarp_state=%d attr_mask=0x%x\n", 1498 __builtin_return_address(0), ibqp->qp_num, attr->qp_state, 1499 iwqp->ibqp_state, iwqp->iwarp_state, iwqp->last_aeq, 1500 iwqp->hw_tcp_state, iwqp->hw_iwarp_state, attr_mask); 1501 1502 spin_lock_irqsave(&iwqp->lock, flags); 1503 if (attr_mask & IB_QP_STATE) { 1504 info.curr_iwarp_state = iwqp->iwarp_state; 1505 switch (attr->qp_state) { 1506 case IB_QPS_INIT: 1507 case IB_QPS_RTR: 1508 if (iwqp->iwarp_state > IRDMA_QP_STATE_IDLE) { 1509 err = -EINVAL; 1510 goto exit; 1511 } 1512 1513 if (iwqp->iwarp_state == IRDMA_QP_STATE_INVALID) { 1514 info.next_iwarp_state = IRDMA_QP_STATE_IDLE; 1515 issue_modify_qp = 1; 1516 } 1517 if (iwdev->push_mode && udata && 1518 iwqp->sc_qp.push_idx == IRDMA_INVALID_PUSH_PAGE_INDEX && 1519 dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { 1520 spin_unlock_irqrestore(&iwqp->lock, flags); 1521 irdma_alloc_push_page(iwqp); 1522 spin_lock_irqsave(&iwqp->lock, flags); 1523 } 1524 break; 1525 case IB_QPS_RTS: 1526 if (iwqp->iwarp_state > IRDMA_QP_STATE_RTS || 1527 !iwqp->cm_id) { 1528 err = -EINVAL; 1529 goto exit; 1530 } 1531 1532 issue_modify_qp = 1; 1533 iwqp->hw_tcp_state = IRDMA_TCP_STATE_ESTABLISHED; 1534 iwqp->hte_added = 1; 1535 info.next_iwarp_state = IRDMA_QP_STATE_RTS; 1536 info.tcp_ctx_valid = true; 1537 info.ord_valid = true; 1538 info.arp_cache_idx_valid = true; 1539 info.cq_num_valid = true; 1540 break; 1541 case IB_QPS_SQD: 1542 if (iwqp->hw_iwarp_state > IRDMA_QP_STATE_RTS) { 1543 err = 0; 1544 goto exit; 1545 } 1546 1547 if (iwqp->iwarp_state == IRDMA_QP_STATE_CLOSING || 1548 iwqp->iwarp_state < IRDMA_QP_STATE_RTS) { 1549 err = 0; 1550 goto exit; 1551 } 1552 1553 if (iwqp->iwarp_state > IRDMA_QP_STATE_CLOSING) { 1554 err = -EINVAL; 1555 goto exit; 1556 } 1557 1558 info.next_iwarp_state = IRDMA_QP_STATE_CLOSING; 1559 issue_modify_qp = 1; 1560 break; 1561 case IB_QPS_SQE: 1562 if (iwqp->iwarp_state >= IRDMA_QP_STATE_TERMINATE) { 1563 err = -EINVAL; 1564 goto exit; 1565 } 1566 1567 info.next_iwarp_state = IRDMA_QP_STATE_TERMINATE; 1568 issue_modify_qp = 1; 1569 break; 1570 case IB_QPS_ERR: 1571 case IB_QPS_RESET: 1572 if (iwqp->iwarp_state == IRDMA_QP_STATE_ERROR) { 1573 spin_unlock_irqrestore(&iwqp->lock, flags); 1574 if (udata && udata->inlen) { 1575 if (ib_copy_from_udata(&ureq, udata, 1576 min(sizeof(ureq), udata->inlen))) 1577 return -EINVAL; 1578 1579 irdma_flush_wqes(iwqp, 1580 (ureq.sq_flush ? IRDMA_FLUSH_SQ : 0) | 1581 (ureq.rq_flush ? IRDMA_FLUSH_RQ : 0) | 1582 IRDMA_REFLUSH); 1583 } 1584 return 0; 1585 } 1586 1587 if (iwqp->sc_qp.term_flags) { 1588 spin_unlock_irqrestore(&iwqp->lock, flags); 1589 irdma_terminate_del_timer(&iwqp->sc_qp); 1590 spin_lock_irqsave(&iwqp->lock, flags); 1591 } 1592 info.next_iwarp_state = IRDMA_QP_STATE_ERROR; 1593 if (iwqp->hw_tcp_state > IRDMA_TCP_STATE_CLOSED && 1594 iwdev->iw_status && 1595 iwqp->hw_tcp_state != IRDMA_TCP_STATE_TIME_WAIT) 1596 info.reset_tcp_conn = true; 1597 else 1598 dont_wait = 1; 1599 1600 issue_modify_qp = 1; 1601 info.next_iwarp_state = IRDMA_QP_STATE_ERROR; 1602 break; 1603 default: 1604 err = -EINVAL; 1605 goto exit; 1606 } 1607 1608 iwqp->ibqp_state = attr->qp_state; 1609 } 1610 if (attr_mask & IB_QP_ACCESS_FLAGS) { 1611 ctx_info->iwarp_info_valid = true; 1612 if (attr->qp_access_flags & IB_ACCESS_LOCAL_WRITE) 1613 offload_info->wr_rdresp_en = true; 1614 if (attr->qp_access_flags & IB_ACCESS_REMOTE_WRITE) 1615 offload_info->wr_rdresp_en = true; 1616 if (attr->qp_access_flags & IB_ACCESS_REMOTE_READ) 1617 offload_info->rd_en = true; 1618 } 1619 1620 if (ctx_info->iwarp_info_valid) { 1621 ctx_info->send_cq_num = iwqp->iwscq->sc_cq.cq_uk.cq_id; 1622 ctx_info->rcv_cq_num = iwqp->iwrcq->sc_cq.cq_uk.cq_id; 1623 irdma_sc_qp_setctx(&iwqp->sc_qp, iwqp->host_ctx.va, ctx_info); 1624 } 1625 spin_unlock_irqrestore(&iwqp->lock, flags); 1626 1627 if (attr_mask & IB_QP_STATE) { 1628 if (issue_modify_qp) { 1629 ctx_info->rem_endpoint_idx = tcp_info->arp_idx; 1630 if (irdma_hw_modify_qp(iwdev, iwqp, &info, true)) 1631 return -EINVAL; 1632 } 1633 1634 spin_lock_irqsave(&iwqp->lock, flags); 1635 if (iwqp->iwarp_state == info.curr_iwarp_state) { 1636 iwqp->iwarp_state = info.next_iwarp_state; 1637 iwqp->ibqp_state = attr->qp_state; 1638 } 1639 spin_unlock_irqrestore(&iwqp->lock, flags); 1640 } 1641 1642 if (issue_modify_qp && iwqp->ibqp_state > IB_QPS_RTS) { 1643 if (dont_wait) { 1644 if (iwqp->hw_tcp_state) { 1645 spin_lock_irqsave(&iwqp->lock, flags); 1646 iwqp->hw_tcp_state = IRDMA_TCP_STATE_CLOSED; 1647 iwqp->last_aeq = IRDMA_AE_RESET_SENT; 1648 spin_unlock_irqrestore(&iwqp->lock, flags); 1649 } 1650 irdma_cm_disconn(iwqp); 1651 } else { 1652 int close_timer_started; 1653 1654 spin_lock_irqsave(&iwdev->cm_core.ht_lock, flags); 1655 1656 if (iwqp->cm_node) { 1657 refcount_inc(&iwqp->cm_node->refcnt); 1658 spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags); 1659 close_timer_started = atomic_inc_return(&iwqp->close_timer_started); 1660 if (iwqp->cm_id && close_timer_started == 1) 1661 irdma_schedule_cm_timer(iwqp->cm_node, 1662 (struct irdma_puda_buf *)iwqp, 1663 IRDMA_TIMER_TYPE_CLOSE, 1, 0); 1664 1665 irdma_rem_ref_cm_node(iwqp->cm_node); 1666 } else { 1667 spin_unlock_irqrestore(&iwdev->cm_core.ht_lock, flags); 1668 } 1669 } 1670 } 1671 if (attr_mask & IB_QP_STATE && udata && udata->outlen && 1672 dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) { 1673 struct irdma_ucontext *ucontext; 1674 1675 ucontext = rdma_udata_to_drv_context(udata, 1676 struct irdma_ucontext, ibucontext); 1677 if (iwqp->sc_qp.push_idx != IRDMA_INVALID_PUSH_PAGE_INDEX && 1678 !iwqp->push_wqe_mmap_entry && 1679 !irdma_setup_push_mmap_entries(ucontext, iwqp, 1680 &uresp.push_wqe_mmap_key, &uresp.push_db_mmap_key)) { 1681 uresp.push_valid = 1; 1682 uresp.push_offset = iwqp->sc_qp.push_offset; 1683 } 1684 1685 err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), 1686 udata->outlen)); 1687 if (err) { 1688 irdma_remove_push_mmap_entries(iwqp); 1689 ibdev_dbg(&iwdev->ibdev, 1690 "VERBS: copy_to_udata failed\n"); 1691 return err; 1692 } 1693 } 1694 1695 return 0; 1696 exit: 1697 spin_unlock_irqrestore(&iwqp->lock, flags); 1698 1699 return err; 1700 } 1701 1702 /** 1703 * irdma_cq_free_rsrc - free up resources for cq 1704 * @rf: RDMA PCI function 1705 * @iwcq: cq ptr 1706 */ 1707 static void irdma_cq_free_rsrc(struct irdma_pci_f *rf, struct irdma_cq *iwcq) 1708 { 1709 struct irdma_sc_cq *cq = &iwcq->sc_cq; 1710 1711 if (!iwcq->user_mode) { 1712 dma_free_coherent(rf->sc_dev.hw->device, iwcq->kmem.size, 1713 iwcq->kmem.va, iwcq->kmem.pa); 1714 iwcq->kmem.va = NULL; 1715 dma_free_coherent(rf->sc_dev.hw->device, 1716 iwcq->kmem_shadow.size, 1717 iwcq->kmem_shadow.va, iwcq->kmem_shadow.pa); 1718 iwcq->kmem_shadow.va = NULL; 1719 } 1720 1721 irdma_free_rsrc(rf, rf->allocated_cqs, cq->cq_uk.cq_id); 1722 } 1723 1724 /** 1725 * irdma_free_cqbuf - worker to free a cq buffer 1726 * @work: provides access to the cq buffer to free 1727 */ 1728 static void irdma_free_cqbuf(struct work_struct *work) 1729 { 1730 struct irdma_cq_buf *cq_buf = container_of(work, struct irdma_cq_buf, work); 1731 1732 dma_free_coherent(cq_buf->hw->device, cq_buf->kmem_buf.size, 1733 cq_buf->kmem_buf.va, cq_buf->kmem_buf.pa); 1734 cq_buf->kmem_buf.va = NULL; 1735 kfree(cq_buf); 1736 } 1737 1738 /** 1739 * irdma_process_resize_list - remove resized cq buffers from the resize_list 1740 * @iwcq: cq which owns the resize_list 1741 * @iwdev: irdma device 1742 * @lcqe_buf: the buffer where the last cqe is received 1743 */ 1744 static int irdma_process_resize_list(struct irdma_cq *iwcq, 1745 struct irdma_device *iwdev, 1746 struct irdma_cq_buf *lcqe_buf) 1747 { 1748 struct list_head *tmp_node, *list_node; 1749 struct irdma_cq_buf *cq_buf; 1750 int cnt = 0; 1751 1752 list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) { 1753 cq_buf = list_entry(list_node, struct irdma_cq_buf, list); 1754 if (cq_buf == lcqe_buf) 1755 return cnt; 1756 1757 list_del(&cq_buf->list); 1758 queue_work(iwdev->cleanup_wq, &cq_buf->work); 1759 cnt++; 1760 } 1761 1762 return cnt; 1763 } 1764 1765 /** 1766 * irdma_destroy_cq - destroy cq 1767 * @ib_cq: cq pointer 1768 * @udata: user data 1769 */ 1770 static int irdma_destroy_cq(struct ib_cq *ib_cq, struct ib_udata *udata) 1771 { 1772 struct irdma_device *iwdev = to_iwdev(ib_cq->device); 1773 struct irdma_cq *iwcq = to_iwcq(ib_cq); 1774 struct irdma_sc_cq *cq = &iwcq->sc_cq; 1775 struct irdma_sc_dev *dev = cq->dev; 1776 struct irdma_sc_ceq *ceq = dev->ceq[cq->ceq_id]; 1777 struct irdma_ceq *iwceq = container_of(ceq, struct irdma_ceq, sc_ceq); 1778 unsigned long flags; 1779 1780 spin_lock_irqsave(&iwcq->lock, flags); 1781 if (!list_empty(&iwcq->cmpl_generated)) 1782 irdma_remove_cmpls_list(iwcq); 1783 if (!list_empty(&iwcq->resize_list)) 1784 irdma_process_resize_list(iwcq, iwdev, NULL); 1785 spin_unlock_irqrestore(&iwcq->lock, flags); 1786 1787 irdma_cq_wq_destroy(iwdev->rf, cq); 1788 1789 spin_lock_irqsave(&iwceq->ce_lock, flags); 1790 irdma_sc_cleanup_ceqes(cq, ceq); 1791 spin_unlock_irqrestore(&iwceq->ce_lock, flags); 1792 irdma_cq_free_rsrc(iwdev->rf, iwcq); 1793 1794 return 0; 1795 } 1796 1797 /** 1798 * irdma_resize_cq - resize cq 1799 * @ibcq: cq to be resized 1800 * @entries: desired cq size 1801 * @udata: user data 1802 */ 1803 static int irdma_resize_cq(struct ib_cq *ibcq, int entries, 1804 struct ib_udata *udata) 1805 { 1806 #define IRDMA_RESIZE_CQ_MIN_REQ_LEN offsetofend(struct irdma_resize_cq_req, user_cq_buffer) 1807 struct irdma_cq *iwcq = to_iwcq(ibcq); 1808 struct irdma_sc_dev *dev = iwcq->sc_cq.dev; 1809 struct irdma_cqp_request *cqp_request; 1810 struct cqp_cmds_info *cqp_info; 1811 struct irdma_modify_cq_info *m_info; 1812 struct irdma_modify_cq_info info = {}; 1813 struct irdma_dma_mem kmem_buf; 1814 struct irdma_cq_mr *cqmr_buf; 1815 struct irdma_pbl *iwpbl_buf; 1816 struct irdma_device *iwdev; 1817 struct irdma_pci_f *rf; 1818 struct irdma_cq_buf *cq_buf = NULL; 1819 unsigned long flags; 1820 int ret; 1821 1822 iwdev = to_iwdev(ibcq->device); 1823 rf = iwdev->rf; 1824 1825 if (!(rf->sc_dev.hw_attrs.uk_attrs.feature_flags & 1826 IRDMA_FEATURE_CQ_RESIZE)) 1827 return -EOPNOTSUPP; 1828 1829 if (udata && udata->inlen < IRDMA_RESIZE_CQ_MIN_REQ_LEN) 1830 return -EINVAL; 1831 1832 if (entries > rf->max_cqe) 1833 return -EINVAL; 1834 1835 if (!iwcq->user_mode) { 1836 entries++; 1837 if (rf->sc_dev.hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) 1838 entries *= 2; 1839 } 1840 1841 info.cq_size = max(entries, 4); 1842 1843 if (info.cq_size == iwcq->sc_cq.cq_uk.cq_size - 1) 1844 return 0; 1845 1846 if (udata) { 1847 struct irdma_resize_cq_req req = {}; 1848 struct irdma_ucontext *ucontext = 1849 rdma_udata_to_drv_context(udata, struct irdma_ucontext, 1850 ibucontext); 1851 1852 /* CQ resize not supported with legacy GEN_1 libi40iw */ 1853 if (ucontext->legacy_mode) 1854 return -EOPNOTSUPP; 1855 1856 if (ib_copy_from_udata(&req, udata, 1857 min(sizeof(req), udata->inlen))) 1858 return -EINVAL; 1859 1860 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); 1861 iwpbl_buf = irdma_get_pbl((unsigned long)req.user_cq_buffer, 1862 &ucontext->cq_reg_mem_list); 1863 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); 1864 1865 if (!iwpbl_buf) 1866 return -ENOMEM; 1867 1868 cqmr_buf = &iwpbl_buf->cq_mr; 1869 if (iwpbl_buf->pbl_allocated) { 1870 info.virtual_map = true; 1871 info.pbl_chunk_size = 1; 1872 info.first_pm_pbl_idx = cqmr_buf->cq_pbl.idx; 1873 } else { 1874 info.cq_pa = cqmr_buf->cq_pbl.addr; 1875 } 1876 } else { 1877 /* Kmode CQ resize */ 1878 int rsize; 1879 1880 rsize = info.cq_size * sizeof(struct irdma_cqe); 1881 kmem_buf.size = ALIGN(round_up(rsize, 256), 256); 1882 kmem_buf.va = dma_alloc_coherent(dev->hw->device, 1883 kmem_buf.size, &kmem_buf.pa, 1884 GFP_KERNEL); 1885 if (!kmem_buf.va) 1886 return -ENOMEM; 1887 1888 info.cq_base = kmem_buf.va; 1889 info.cq_pa = kmem_buf.pa; 1890 cq_buf = kzalloc(sizeof(*cq_buf), GFP_KERNEL); 1891 if (!cq_buf) { 1892 ret = -ENOMEM; 1893 goto error; 1894 } 1895 } 1896 1897 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true); 1898 if (!cqp_request) { 1899 ret = -ENOMEM; 1900 goto error; 1901 } 1902 1903 info.shadow_read_threshold = iwcq->sc_cq.shadow_read_threshold; 1904 info.cq_resize = true; 1905 1906 cqp_info = &cqp_request->info; 1907 m_info = &cqp_info->in.u.cq_modify.info; 1908 memcpy(m_info, &info, sizeof(*m_info)); 1909 1910 cqp_info->cqp_cmd = IRDMA_OP_CQ_MODIFY; 1911 cqp_info->in.u.cq_modify.cq = &iwcq->sc_cq; 1912 cqp_info->in.u.cq_modify.scratch = (uintptr_t)cqp_request; 1913 cqp_info->post_sq = 1; 1914 ret = irdma_handle_cqp_op(rf, cqp_request); 1915 irdma_put_cqp_request(&rf->cqp, cqp_request); 1916 if (ret) 1917 goto error; 1918 1919 spin_lock_irqsave(&iwcq->lock, flags); 1920 if (cq_buf) { 1921 cq_buf->kmem_buf = iwcq->kmem; 1922 cq_buf->hw = dev->hw; 1923 memcpy(&cq_buf->cq_uk, &iwcq->sc_cq.cq_uk, sizeof(cq_buf->cq_uk)); 1924 INIT_WORK(&cq_buf->work, irdma_free_cqbuf); 1925 list_add_tail(&cq_buf->list, &iwcq->resize_list); 1926 iwcq->kmem = kmem_buf; 1927 } 1928 1929 irdma_sc_cq_resize(&iwcq->sc_cq, &info); 1930 ibcq->cqe = info.cq_size - 1; 1931 spin_unlock_irqrestore(&iwcq->lock, flags); 1932 1933 return 0; 1934 error: 1935 if (!udata) { 1936 dma_free_coherent(dev->hw->device, kmem_buf.size, kmem_buf.va, 1937 kmem_buf.pa); 1938 kmem_buf.va = NULL; 1939 } 1940 kfree(cq_buf); 1941 1942 return ret; 1943 } 1944 1945 static inline int cq_validate_flags(u32 flags, u8 hw_rev) 1946 { 1947 /* GEN1 does not support CQ create flags */ 1948 if (hw_rev == IRDMA_GEN_1) 1949 return flags ? -EOPNOTSUPP : 0; 1950 1951 return flags & ~IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION ? -EOPNOTSUPP : 0; 1952 } 1953 1954 /** 1955 * irdma_create_cq - create cq 1956 * @ibcq: CQ allocated 1957 * @attr: attributes for cq 1958 * @udata: user data 1959 */ 1960 static int irdma_create_cq(struct ib_cq *ibcq, 1961 const struct ib_cq_init_attr *attr, 1962 struct ib_udata *udata) 1963 { 1964 #define IRDMA_CREATE_CQ_MIN_REQ_LEN offsetofend(struct irdma_create_cq_req, user_cq_buf) 1965 #define IRDMA_CREATE_CQ_MIN_RESP_LEN offsetofend(struct irdma_create_cq_resp, cq_size) 1966 struct ib_device *ibdev = ibcq->device; 1967 struct irdma_device *iwdev = to_iwdev(ibdev); 1968 struct irdma_pci_f *rf = iwdev->rf; 1969 struct irdma_cq *iwcq = to_iwcq(ibcq); 1970 u32 cq_num = 0; 1971 struct irdma_sc_cq *cq; 1972 struct irdma_sc_dev *dev = &rf->sc_dev; 1973 struct irdma_cq_init_info info = {}; 1974 struct irdma_cqp_request *cqp_request; 1975 struct cqp_cmds_info *cqp_info; 1976 struct irdma_cq_uk_init_info *ukinfo = &info.cq_uk_init_info; 1977 unsigned long flags; 1978 int err_code; 1979 int entries = attr->cqe; 1980 1981 err_code = cq_validate_flags(attr->flags, dev->hw_attrs.uk_attrs.hw_rev); 1982 if (err_code) 1983 return err_code; 1984 1985 if (udata && (udata->inlen < IRDMA_CREATE_CQ_MIN_REQ_LEN || 1986 udata->outlen < IRDMA_CREATE_CQ_MIN_RESP_LEN)) 1987 return -EINVAL; 1988 1989 err_code = irdma_alloc_rsrc(rf, rf->allocated_cqs, rf->max_cq, &cq_num, 1990 &rf->next_cq); 1991 if (err_code) 1992 return err_code; 1993 1994 cq = &iwcq->sc_cq; 1995 cq->back_cq = iwcq; 1996 spin_lock_init(&iwcq->lock); 1997 INIT_LIST_HEAD(&iwcq->resize_list); 1998 INIT_LIST_HEAD(&iwcq->cmpl_generated); 1999 info.dev = dev; 2000 ukinfo->cq_size = max(entries, 4); 2001 ukinfo->cq_id = cq_num; 2002 iwcq->ibcq.cqe = info.cq_uk_init_info.cq_size; 2003 if (attr->comp_vector < rf->ceqs_count) 2004 info.ceq_id = attr->comp_vector; 2005 info.ceq_id_valid = true; 2006 info.ceqe_mask = 1; 2007 info.type = IRDMA_CQ_TYPE_IWARP; 2008 info.vsi = &iwdev->vsi; 2009 2010 if (udata) { 2011 struct irdma_ucontext *ucontext; 2012 struct irdma_create_cq_req req = {}; 2013 struct irdma_cq_mr *cqmr; 2014 struct irdma_pbl *iwpbl; 2015 struct irdma_pbl *iwpbl_shadow; 2016 struct irdma_cq_mr *cqmr_shadow; 2017 2018 iwcq->user_mode = true; 2019 ucontext = 2020 rdma_udata_to_drv_context(udata, struct irdma_ucontext, 2021 ibucontext); 2022 if (ib_copy_from_udata(&req, udata, 2023 min(sizeof(req), udata->inlen))) { 2024 err_code = -EFAULT; 2025 goto cq_free_rsrc; 2026 } 2027 2028 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); 2029 iwpbl = irdma_get_pbl((unsigned long)req.user_cq_buf, 2030 &ucontext->cq_reg_mem_list); 2031 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); 2032 if (!iwpbl) { 2033 err_code = -EPROTO; 2034 goto cq_free_rsrc; 2035 } 2036 2037 iwcq->iwpbl = iwpbl; 2038 iwcq->cq_mem_size = 0; 2039 cqmr = &iwpbl->cq_mr; 2040 2041 if (rf->sc_dev.hw_attrs.uk_attrs.feature_flags & 2042 IRDMA_FEATURE_CQ_RESIZE && !ucontext->legacy_mode) { 2043 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); 2044 iwpbl_shadow = irdma_get_pbl( 2045 (unsigned long)req.user_shadow_area, 2046 &ucontext->cq_reg_mem_list); 2047 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); 2048 2049 if (!iwpbl_shadow) { 2050 err_code = -EPROTO; 2051 goto cq_free_rsrc; 2052 } 2053 iwcq->iwpbl_shadow = iwpbl_shadow; 2054 cqmr_shadow = &iwpbl_shadow->cq_mr; 2055 info.shadow_area_pa = cqmr_shadow->cq_pbl.addr; 2056 cqmr->split = true; 2057 } else { 2058 info.shadow_area_pa = cqmr->shadow; 2059 } 2060 if (iwpbl->pbl_allocated) { 2061 info.virtual_map = true; 2062 info.pbl_chunk_size = 1; 2063 info.first_pm_pbl_idx = cqmr->cq_pbl.idx; 2064 } else { 2065 info.cq_base_pa = cqmr->cq_pbl.addr; 2066 } 2067 } else { 2068 /* Kmode allocations */ 2069 int rsize; 2070 2071 if (entries < 1 || entries > rf->max_cqe) { 2072 err_code = -EINVAL; 2073 goto cq_free_rsrc; 2074 } 2075 2076 entries++; 2077 if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) 2078 entries *= 2; 2079 ukinfo->cq_size = entries; 2080 2081 rsize = info.cq_uk_init_info.cq_size * sizeof(struct irdma_cqe); 2082 iwcq->kmem.size = ALIGN(round_up(rsize, 256), 256); 2083 iwcq->kmem.va = dma_alloc_coherent(dev->hw->device, 2084 iwcq->kmem.size, 2085 &iwcq->kmem.pa, GFP_KERNEL); 2086 if (!iwcq->kmem.va) { 2087 err_code = -ENOMEM; 2088 goto cq_free_rsrc; 2089 } 2090 2091 iwcq->kmem_shadow.size = ALIGN(IRDMA_SHADOW_AREA_SIZE << 3, 2092 64); 2093 iwcq->kmem_shadow.va = dma_alloc_coherent(dev->hw->device, 2094 iwcq->kmem_shadow.size, 2095 &iwcq->kmem_shadow.pa, 2096 GFP_KERNEL); 2097 if (!iwcq->kmem_shadow.va) { 2098 err_code = -ENOMEM; 2099 goto cq_free_rsrc; 2100 } 2101 info.shadow_area_pa = iwcq->kmem_shadow.pa; 2102 ukinfo->shadow_area = iwcq->kmem_shadow.va; 2103 ukinfo->cq_base = iwcq->kmem.va; 2104 info.cq_base_pa = iwcq->kmem.pa; 2105 } 2106 2107 if (dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2) 2108 info.shadow_read_threshold = min(info.cq_uk_init_info.cq_size / 2, 2109 (u32)IRDMA_MAX_CQ_READ_THRESH); 2110 2111 if (irdma_sc_cq_init(cq, &info)) { 2112 ibdev_dbg(&iwdev->ibdev, "VERBS: init cq fail\n"); 2113 err_code = -EPROTO; 2114 goto cq_free_rsrc; 2115 } 2116 2117 cqp_request = irdma_alloc_and_get_cqp_request(&rf->cqp, true); 2118 if (!cqp_request) { 2119 err_code = -ENOMEM; 2120 goto cq_free_rsrc; 2121 } 2122 2123 cqp_info = &cqp_request->info; 2124 cqp_info->cqp_cmd = IRDMA_OP_CQ_CREATE; 2125 cqp_info->post_sq = 1; 2126 cqp_info->in.u.cq_create.cq = cq; 2127 cqp_info->in.u.cq_create.check_overflow = true; 2128 cqp_info->in.u.cq_create.scratch = (uintptr_t)cqp_request; 2129 err_code = irdma_handle_cqp_op(rf, cqp_request); 2130 irdma_put_cqp_request(&rf->cqp, cqp_request); 2131 if (err_code) 2132 goto cq_free_rsrc; 2133 2134 if (udata) { 2135 struct irdma_create_cq_resp resp = {}; 2136 2137 resp.cq_id = info.cq_uk_init_info.cq_id; 2138 resp.cq_size = info.cq_uk_init_info.cq_size; 2139 if (ib_copy_to_udata(udata, &resp, 2140 min(sizeof(resp), udata->outlen))) { 2141 ibdev_dbg(&iwdev->ibdev, 2142 "VERBS: copy to user data\n"); 2143 err_code = -EPROTO; 2144 goto cq_destroy; 2145 } 2146 } 2147 return 0; 2148 cq_destroy: 2149 irdma_cq_wq_destroy(rf, cq); 2150 cq_free_rsrc: 2151 irdma_cq_free_rsrc(rf, iwcq); 2152 2153 return err_code; 2154 } 2155 2156 /** 2157 * irdma_get_mr_access - get hw MR access permissions from IB access flags 2158 * @access: IB access flags 2159 */ 2160 static inline u16 irdma_get_mr_access(int access) 2161 { 2162 u16 hw_access = 0; 2163 2164 hw_access |= (access & IB_ACCESS_LOCAL_WRITE) ? 2165 IRDMA_ACCESS_FLAGS_LOCALWRITE : 0; 2166 hw_access |= (access & IB_ACCESS_REMOTE_WRITE) ? 2167 IRDMA_ACCESS_FLAGS_REMOTEWRITE : 0; 2168 hw_access |= (access & IB_ACCESS_REMOTE_READ) ? 2169 IRDMA_ACCESS_FLAGS_REMOTEREAD : 0; 2170 hw_access |= (access & IB_ACCESS_MW_BIND) ? 2171 IRDMA_ACCESS_FLAGS_BIND_WINDOW : 0; 2172 hw_access |= (access & IB_ZERO_BASED) ? 2173 IRDMA_ACCESS_FLAGS_ZERO_BASED : 0; 2174 hw_access |= IRDMA_ACCESS_FLAGS_LOCALREAD; 2175 2176 return hw_access; 2177 } 2178 2179 /** 2180 * irdma_free_stag - free stag resource 2181 * @iwdev: irdma device 2182 * @stag: stag to free 2183 */ 2184 static void irdma_free_stag(struct irdma_device *iwdev, u32 stag) 2185 { 2186 u32 stag_idx; 2187 2188 stag_idx = (stag & iwdev->rf->mr_stagmask) >> IRDMA_CQPSQ_STAG_IDX_S; 2189 irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_mrs, stag_idx); 2190 } 2191 2192 /** 2193 * irdma_create_stag - create random stag 2194 * @iwdev: irdma device 2195 */ 2196 static u32 irdma_create_stag(struct irdma_device *iwdev) 2197 { 2198 u32 stag = 0; 2199 u32 stag_index = 0; 2200 u32 next_stag_index; 2201 u32 driver_key; 2202 u32 random; 2203 u8 consumer_key; 2204 int ret; 2205 2206 get_random_bytes(&random, sizeof(random)); 2207 consumer_key = (u8)random; 2208 2209 driver_key = random & ~iwdev->rf->mr_stagmask; 2210 next_stag_index = (random & iwdev->rf->mr_stagmask) >> 8; 2211 next_stag_index %= iwdev->rf->max_mr; 2212 2213 ret = irdma_alloc_rsrc(iwdev->rf, iwdev->rf->allocated_mrs, 2214 iwdev->rf->max_mr, &stag_index, 2215 &next_stag_index); 2216 if (ret) 2217 return stag; 2218 stag = stag_index << IRDMA_CQPSQ_STAG_IDX_S; 2219 stag |= driver_key; 2220 stag += (u32)consumer_key; 2221 2222 return stag; 2223 } 2224 2225 /** 2226 * irdma_next_pbl_addr - Get next pbl address 2227 * @pbl: pointer to a pble 2228 * @pinfo: info pointer 2229 * @idx: index 2230 */ 2231 static inline u64 *irdma_next_pbl_addr(u64 *pbl, struct irdma_pble_info **pinfo, 2232 u32 *idx) 2233 { 2234 *idx += 1; 2235 if (!(*pinfo) || *idx != (*pinfo)->cnt) 2236 return ++pbl; 2237 *idx = 0; 2238 (*pinfo)++; 2239 2240 return (*pinfo)->addr; 2241 } 2242 2243 /** 2244 * irdma_copy_user_pgaddrs - copy user page address to pble's os locally 2245 * @iwmr: iwmr for IB's user page addresses 2246 * @pbl: ple pointer to save 1 level or 0 level pble 2247 * @level: indicated level 0, 1 or 2 2248 */ 2249 static void irdma_copy_user_pgaddrs(struct irdma_mr *iwmr, u64 *pbl, 2250 enum irdma_pble_level level) 2251 { 2252 struct ib_umem *region = iwmr->region; 2253 struct irdma_pbl *iwpbl = &iwmr->iwpbl; 2254 struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; 2255 struct irdma_pble_info *pinfo; 2256 struct ib_block_iter biter; 2257 u32 idx = 0; 2258 u32 pbl_cnt = 0; 2259 2260 pinfo = (level == PBLE_LEVEL_1) ? NULL : palloc->level2.leaf; 2261 2262 if (iwmr->type == IRDMA_MEMREG_TYPE_QP) 2263 iwpbl->qp_mr.sq_page = sg_page(region->sgt_append.sgt.sgl); 2264 2265 rdma_umem_for_each_dma_block(region, &biter, iwmr->page_size) { 2266 *pbl = rdma_block_iter_dma_address(&biter); 2267 if (++pbl_cnt == palloc->total_cnt) 2268 break; 2269 pbl = irdma_next_pbl_addr(pbl, &pinfo, &idx); 2270 } 2271 } 2272 2273 /** 2274 * irdma_check_mem_contiguous - check if pbls stored in arr are contiguous 2275 * @arr: lvl1 pbl array 2276 * @npages: page count 2277 * @pg_size: page size 2278 * 2279 */ 2280 static bool irdma_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size) 2281 { 2282 u32 pg_idx; 2283 2284 for (pg_idx = 0; pg_idx < npages; pg_idx++) { 2285 if ((*arr + (pg_size * pg_idx)) != arr[pg_idx]) 2286 return false; 2287 } 2288 2289 return true; 2290 } 2291 2292 /** 2293 * irdma_check_mr_contiguous - check if MR is physically contiguous 2294 * @palloc: pbl allocation struct 2295 * @pg_size: page size 2296 */ 2297 static bool irdma_check_mr_contiguous(struct irdma_pble_alloc *palloc, 2298 u32 pg_size) 2299 { 2300 struct irdma_pble_level2 *lvl2 = &palloc->level2; 2301 struct irdma_pble_info *leaf = lvl2->leaf; 2302 u64 *arr = NULL; 2303 u64 *start_addr = NULL; 2304 int i; 2305 bool ret; 2306 2307 if (palloc->level == PBLE_LEVEL_1) { 2308 arr = palloc->level1.addr; 2309 ret = irdma_check_mem_contiguous(arr, palloc->total_cnt, 2310 pg_size); 2311 return ret; 2312 } 2313 2314 start_addr = leaf->addr; 2315 2316 for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) { 2317 arr = leaf->addr; 2318 if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr) 2319 return false; 2320 ret = irdma_check_mem_contiguous(arr, leaf->cnt, pg_size); 2321 if (!ret) 2322 return false; 2323 } 2324 2325 return true; 2326 } 2327 2328 /** 2329 * irdma_setup_pbles - copy user pg address to pble's 2330 * @rf: RDMA PCI function 2331 * @iwmr: mr pointer for this memory registration 2332 * @use_pbles: flag if to use pble's 2333 * @lvl_1_only: request only level 1 pble if true 2334 */ 2335 static int irdma_setup_pbles(struct irdma_pci_f *rf, struct irdma_mr *iwmr, 2336 bool use_pbles, bool lvl_1_only) 2337 { 2338 struct irdma_pbl *iwpbl = &iwmr->iwpbl; 2339 struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; 2340 struct irdma_pble_info *pinfo; 2341 u64 *pbl; 2342 int status; 2343 enum irdma_pble_level level = PBLE_LEVEL_1; 2344 2345 if (use_pbles) { 2346 status = irdma_get_pble(rf->pble_rsrc, palloc, iwmr->page_cnt, 2347 lvl_1_only); 2348 if (status) 2349 return status; 2350 2351 iwpbl->pbl_allocated = true; 2352 level = palloc->level; 2353 pinfo = (level == PBLE_LEVEL_1) ? &palloc->level1 : 2354 palloc->level2.leaf; 2355 pbl = pinfo->addr; 2356 } else { 2357 pbl = iwmr->pgaddrmem; 2358 } 2359 2360 irdma_copy_user_pgaddrs(iwmr, pbl, level); 2361 2362 if (use_pbles) 2363 iwmr->pgaddrmem[0] = *pbl; 2364 2365 return 0; 2366 } 2367 2368 /** 2369 * irdma_handle_q_mem - handle memory for qp and cq 2370 * @iwdev: irdma device 2371 * @req: information for q memory management 2372 * @iwpbl: pble struct 2373 * @use_pbles: flag to use pble 2374 */ 2375 static int irdma_handle_q_mem(struct irdma_device *iwdev, 2376 struct irdma_mem_reg_req *req, 2377 struct irdma_pbl *iwpbl, bool use_pbles) 2378 { 2379 struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; 2380 struct irdma_mr *iwmr = iwpbl->iwmr; 2381 struct irdma_qp_mr *qpmr = &iwpbl->qp_mr; 2382 struct irdma_cq_mr *cqmr = &iwpbl->cq_mr; 2383 struct irdma_hmc_pble *hmc_p; 2384 u64 *arr = iwmr->pgaddrmem; 2385 u32 pg_size, total; 2386 int err = 0; 2387 bool ret = true; 2388 2389 pg_size = iwmr->page_size; 2390 err = irdma_setup_pbles(iwdev->rf, iwmr, use_pbles, true); 2391 if (err) 2392 return err; 2393 2394 if (use_pbles) 2395 arr = palloc->level1.addr; 2396 2397 switch (iwmr->type) { 2398 case IRDMA_MEMREG_TYPE_QP: 2399 total = req->sq_pages + req->rq_pages; 2400 hmc_p = &qpmr->sq_pbl; 2401 qpmr->shadow = (dma_addr_t)arr[total]; 2402 2403 if (use_pbles) { 2404 ret = irdma_check_mem_contiguous(arr, req->sq_pages, 2405 pg_size); 2406 if (ret) 2407 ret = irdma_check_mem_contiguous(&arr[req->sq_pages], 2408 req->rq_pages, 2409 pg_size); 2410 } 2411 2412 if (!ret) { 2413 hmc_p->idx = palloc->level1.idx; 2414 hmc_p = &qpmr->rq_pbl; 2415 hmc_p->idx = palloc->level1.idx + req->sq_pages; 2416 } else { 2417 hmc_p->addr = arr[0]; 2418 hmc_p = &qpmr->rq_pbl; 2419 hmc_p->addr = arr[req->sq_pages]; 2420 } 2421 break; 2422 case IRDMA_MEMREG_TYPE_CQ: 2423 hmc_p = &cqmr->cq_pbl; 2424 2425 if (!cqmr->split) 2426 cqmr->shadow = (dma_addr_t)arr[req->cq_pages]; 2427 2428 if (use_pbles) 2429 ret = irdma_check_mem_contiguous(arr, req->cq_pages, 2430 pg_size); 2431 2432 if (!ret) 2433 hmc_p->idx = palloc->level1.idx; 2434 else 2435 hmc_p->addr = arr[0]; 2436 break; 2437 default: 2438 ibdev_dbg(&iwdev->ibdev, "VERBS: MR type error\n"); 2439 err = -EINVAL; 2440 } 2441 2442 if (use_pbles && ret) { 2443 irdma_free_pble(iwdev->rf->pble_rsrc, palloc); 2444 iwpbl->pbl_allocated = false; 2445 } 2446 2447 return err; 2448 } 2449 2450 /** 2451 * irdma_hw_alloc_mw - create the hw memory window 2452 * @iwdev: irdma device 2453 * @iwmr: pointer to memory window info 2454 */ 2455 static int irdma_hw_alloc_mw(struct irdma_device *iwdev, struct irdma_mr *iwmr) 2456 { 2457 struct irdma_mw_alloc_info *info; 2458 struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd); 2459 struct irdma_cqp_request *cqp_request; 2460 struct cqp_cmds_info *cqp_info; 2461 int status; 2462 2463 cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); 2464 if (!cqp_request) 2465 return -ENOMEM; 2466 2467 cqp_info = &cqp_request->info; 2468 info = &cqp_info->in.u.mw_alloc.info; 2469 memset(info, 0, sizeof(*info)); 2470 if (iwmr->ibmw.type == IB_MW_TYPE_1) 2471 info->mw_wide = true; 2472 2473 info->page_size = PAGE_SIZE; 2474 info->mw_stag_index = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; 2475 info->pd_id = iwpd->sc_pd.pd_id; 2476 info->remote_access = true; 2477 cqp_info->cqp_cmd = IRDMA_OP_MW_ALLOC; 2478 cqp_info->post_sq = 1; 2479 cqp_info->in.u.mw_alloc.dev = &iwdev->rf->sc_dev; 2480 cqp_info->in.u.mw_alloc.scratch = (uintptr_t)cqp_request; 2481 status = irdma_handle_cqp_op(iwdev->rf, cqp_request); 2482 irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); 2483 2484 return status; 2485 } 2486 2487 /** 2488 * irdma_alloc_mw - Allocate memory window 2489 * @ibmw: Memory Window 2490 * @udata: user data pointer 2491 */ 2492 static int irdma_alloc_mw(struct ib_mw *ibmw, struct ib_udata *udata) 2493 { 2494 struct irdma_device *iwdev = to_iwdev(ibmw->device); 2495 struct irdma_mr *iwmr = to_iwmw(ibmw); 2496 int err_code; 2497 u32 stag; 2498 2499 stag = irdma_create_stag(iwdev); 2500 if (!stag) 2501 return -ENOMEM; 2502 2503 iwmr->stag = stag; 2504 ibmw->rkey = stag; 2505 2506 err_code = irdma_hw_alloc_mw(iwdev, iwmr); 2507 if (err_code) { 2508 irdma_free_stag(iwdev, stag); 2509 return err_code; 2510 } 2511 2512 return 0; 2513 } 2514 2515 /** 2516 * irdma_dealloc_mw - Dealloc memory window 2517 * @ibmw: memory window structure. 2518 */ 2519 static int irdma_dealloc_mw(struct ib_mw *ibmw) 2520 { 2521 struct ib_pd *ibpd = ibmw->pd; 2522 struct irdma_pd *iwpd = to_iwpd(ibpd); 2523 struct irdma_mr *iwmr = to_iwmr((struct ib_mr *)ibmw); 2524 struct irdma_device *iwdev = to_iwdev(ibmw->device); 2525 struct irdma_cqp_request *cqp_request; 2526 struct cqp_cmds_info *cqp_info; 2527 struct irdma_dealloc_stag_info *info; 2528 2529 cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); 2530 if (!cqp_request) 2531 return -ENOMEM; 2532 2533 cqp_info = &cqp_request->info; 2534 info = &cqp_info->in.u.dealloc_stag.info; 2535 memset(info, 0, sizeof(*info)); 2536 info->pd_id = iwpd->sc_pd.pd_id; 2537 info->stag_idx = ibmw->rkey >> IRDMA_CQPSQ_STAG_IDX_S; 2538 info->mr = false; 2539 cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG; 2540 cqp_info->post_sq = 1; 2541 cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev; 2542 cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request; 2543 irdma_handle_cqp_op(iwdev->rf, cqp_request); 2544 irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); 2545 irdma_free_stag(iwdev, iwmr->stag); 2546 2547 return 0; 2548 } 2549 2550 /** 2551 * irdma_hw_alloc_stag - cqp command to allocate stag 2552 * @iwdev: irdma device 2553 * @iwmr: irdma mr pointer 2554 */ 2555 static int irdma_hw_alloc_stag(struct irdma_device *iwdev, 2556 struct irdma_mr *iwmr) 2557 { 2558 struct irdma_allocate_stag_info *info; 2559 struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd); 2560 int status; 2561 struct irdma_cqp_request *cqp_request; 2562 struct cqp_cmds_info *cqp_info; 2563 2564 cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); 2565 if (!cqp_request) 2566 return -ENOMEM; 2567 2568 cqp_info = &cqp_request->info; 2569 info = &cqp_info->in.u.alloc_stag.info; 2570 memset(info, 0, sizeof(*info)); 2571 info->page_size = PAGE_SIZE; 2572 info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; 2573 info->pd_id = iwpd->sc_pd.pd_id; 2574 info->total_len = iwmr->len; 2575 info->remote_access = true; 2576 cqp_info->cqp_cmd = IRDMA_OP_ALLOC_STAG; 2577 cqp_info->post_sq = 1; 2578 cqp_info->in.u.alloc_stag.dev = &iwdev->rf->sc_dev; 2579 cqp_info->in.u.alloc_stag.scratch = (uintptr_t)cqp_request; 2580 status = irdma_handle_cqp_op(iwdev->rf, cqp_request); 2581 irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); 2582 2583 return status; 2584 } 2585 2586 /** 2587 * irdma_alloc_mr - register stag for fast memory registration 2588 * @pd: ibpd pointer 2589 * @mr_type: memory for stag registrion 2590 * @max_num_sg: man number of pages 2591 */ 2592 static struct ib_mr *irdma_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, 2593 u32 max_num_sg) 2594 { 2595 struct irdma_device *iwdev = to_iwdev(pd->device); 2596 struct irdma_pble_alloc *palloc; 2597 struct irdma_pbl *iwpbl; 2598 struct irdma_mr *iwmr; 2599 u32 stag; 2600 int err_code; 2601 2602 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); 2603 if (!iwmr) 2604 return ERR_PTR(-ENOMEM); 2605 2606 stag = irdma_create_stag(iwdev); 2607 if (!stag) { 2608 err_code = -ENOMEM; 2609 goto err; 2610 } 2611 2612 iwmr->stag = stag; 2613 iwmr->ibmr.rkey = stag; 2614 iwmr->ibmr.lkey = stag; 2615 iwmr->ibmr.pd = pd; 2616 iwmr->ibmr.device = pd->device; 2617 iwpbl = &iwmr->iwpbl; 2618 iwpbl->iwmr = iwmr; 2619 iwmr->type = IRDMA_MEMREG_TYPE_MEM; 2620 palloc = &iwpbl->pble_alloc; 2621 iwmr->page_cnt = max_num_sg; 2622 err_code = irdma_get_pble(iwdev->rf->pble_rsrc, palloc, iwmr->page_cnt, 2623 false); 2624 if (err_code) 2625 goto err_get_pble; 2626 2627 err_code = irdma_hw_alloc_stag(iwdev, iwmr); 2628 if (err_code) 2629 goto err_alloc_stag; 2630 2631 iwpbl->pbl_allocated = true; 2632 2633 return &iwmr->ibmr; 2634 err_alloc_stag: 2635 irdma_free_pble(iwdev->rf->pble_rsrc, palloc); 2636 err_get_pble: 2637 irdma_free_stag(iwdev, stag); 2638 err: 2639 kfree(iwmr); 2640 2641 return ERR_PTR(err_code); 2642 } 2643 2644 /** 2645 * irdma_set_page - populate pbl list for fmr 2646 * @ibmr: ib mem to access iwarp mr pointer 2647 * @addr: page dma address fro pbl list 2648 */ 2649 static int irdma_set_page(struct ib_mr *ibmr, u64 addr) 2650 { 2651 struct irdma_mr *iwmr = to_iwmr(ibmr); 2652 struct irdma_pbl *iwpbl = &iwmr->iwpbl; 2653 struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; 2654 u64 *pbl; 2655 2656 if (unlikely(iwmr->npages == iwmr->page_cnt)) 2657 return -ENOMEM; 2658 2659 if (palloc->level == PBLE_LEVEL_2) { 2660 struct irdma_pble_info *palloc_info = 2661 palloc->level2.leaf + (iwmr->npages >> PBLE_512_SHIFT); 2662 2663 palloc_info->addr[iwmr->npages & (PBLE_PER_PAGE - 1)] = addr; 2664 } else { 2665 pbl = palloc->level1.addr; 2666 pbl[iwmr->npages] = addr; 2667 } 2668 iwmr->npages++; 2669 2670 return 0; 2671 } 2672 2673 /** 2674 * irdma_map_mr_sg - map of sg list for fmr 2675 * @ibmr: ib mem to access iwarp mr pointer 2676 * @sg: scatter gather list 2677 * @sg_nents: number of sg pages 2678 * @sg_offset: scatter gather list for fmr 2679 */ 2680 static int irdma_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, 2681 int sg_nents, unsigned int *sg_offset) 2682 { 2683 struct irdma_mr *iwmr = to_iwmr(ibmr); 2684 2685 iwmr->npages = 0; 2686 2687 return ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, irdma_set_page); 2688 } 2689 2690 /** 2691 * irdma_hwreg_mr - send cqp command for memory registration 2692 * @iwdev: irdma device 2693 * @iwmr: irdma mr pointer 2694 * @access: access for MR 2695 */ 2696 static int irdma_hwreg_mr(struct irdma_device *iwdev, struct irdma_mr *iwmr, 2697 u16 access) 2698 { 2699 struct irdma_pbl *iwpbl = &iwmr->iwpbl; 2700 struct irdma_reg_ns_stag_info *stag_info; 2701 struct irdma_pd *iwpd = to_iwpd(iwmr->ibmr.pd); 2702 struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; 2703 struct irdma_cqp_request *cqp_request; 2704 struct cqp_cmds_info *cqp_info; 2705 int ret; 2706 2707 cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); 2708 if (!cqp_request) 2709 return -ENOMEM; 2710 2711 cqp_info = &cqp_request->info; 2712 stag_info = &cqp_info->in.u.mr_reg_non_shared.info; 2713 memset(stag_info, 0, sizeof(*stag_info)); 2714 stag_info->va = iwpbl->user_base; 2715 stag_info->stag_idx = iwmr->stag >> IRDMA_CQPSQ_STAG_IDX_S; 2716 stag_info->stag_key = (u8)iwmr->stag; 2717 stag_info->total_len = iwmr->len; 2718 stag_info->access_rights = irdma_get_mr_access(access); 2719 stag_info->pd_id = iwpd->sc_pd.pd_id; 2720 if (stag_info->access_rights & IRDMA_ACCESS_FLAGS_ZERO_BASED) 2721 stag_info->addr_type = IRDMA_ADDR_TYPE_ZERO_BASED; 2722 else 2723 stag_info->addr_type = IRDMA_ADDR_TYPE_VA_BASED; 2724 stag_info->page_size = iwmr->page_size; 2725 2726 if (iwpbl->pbl_allocated) { 2727 if (palloc->level == PBLE_LEVEL_1) { 2728 stag_info->first_pm_pbl_index = palloc->level1.idx; 2729 stag_info->chunk_size = 1; 2730 } else { 2731 stag_info->first_pm_pbl_index = palloc->level2.root.idx; 2732 stag_info->chunk_size = 3; 2733 } 2734 } else { 2735 stag_info->reg_addr_pa = iwmr->pgaddrmem[0]; 2736 } 2737 2738 cqp_info->cqp_cmd = IRDMA_OP_MR_REG_NON_SHARED; 2739 cqp_info->post_sq = 1; 2740 cqp_info->in.u.mr_reg_non_shared.dev = &iwdev->rf->sc_dev; 2741 cqp_info->in.u.mr_reg_non_shared.scratch = (uintptr_t)cqp_request; 2742 ret = irdma_handle_cqp_op(iwdev->rf, cqp_request); 2743 irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); 2744 2745 return ret; 2746 } 2747 2748 /** 2749 * irdma_reg_user_mr - Register a user memory region 2750 * @pd: ptr of pd 2751 * @start: virtual start address 2752 * @len: length of mr 2753 * @virt: virtual address 2754 * @access: access of mr 2755 * @udata: user data 2756 */ 2757 static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len, 2758 u64 virt, int access, 2759 struct ib_udata *udata) 2760 { 2761 #define IRDMA_MEM_REG_MIN_REQ_LEN offsetofend(struct irdma_mem_reg_req, sq_pages) 2762 struct irdma_device *iwdev = to_iwdev(pd->device); 2763 struct irdma_ucontext *ucontext; 2764 struct irdma_pble_alloc *palloc; 2765 struct irdma_pbl *iwpbl; 2766 struct irdma_mr *iwmr; 2767 struct ib_umem *region; 2768 struct irdma_mem_reg_req req; 2769 u32 total, stag = 0; 2770 u8 shadow_pgcnt = 1; 2771 bool use_pbles = false; 2772 unsigned long flags; 2773 int err = -EINVAL; 2774 int ret; 2775 2776 if (len > iwdev->rf->sc_dev.hw_attrs.max_mr_size) 2777 return ERR_PTR(-EINVAL); 2778 2779 if (udata->inlen < IRDMA_MEM_REG_MIN_REQ_LEN) 2780 return ERR_PTR(-EINVAL); 2781 2782 region = ib_umem_get(pd->device, start, len, access); 2783 2784 if (IS_ERR(region)) { 2785 ibdev_dbg(&iwdev->ibdev, 2786 "VERBS: Failed to create ib_umem region\n"); 2787 return (struct ib_mr *)region; 2788 } 2789 2790 if (ib_copy_from_udata(&req, udata, min(sizeof(req), udata->inlen))) { 2791 ib_umem_release(region); 2792 return ERR_PTR(-EFAULT); 2793 } 2794 2795 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); 2796 if (!iwmr) { 2797 ib_umem_release(region); 2798 return ERR_PTR(-ENOMEM); 2799 } 2800 2801 iwpbl = &iwmr->iwpbl; 2802 iwpbl->iwmr = iwmr; 2803 iwmr->region = region; 2804 iwmr->ibmr.pd = pd; 2805 iwmr->ibmr.device = pd->device; 2806 iwmr->ibmr.iova = virt; 2807 iwmr->page_size = PAGE_SIZE; 2808 2809 if (req.reg_type == IRDMA_MEMREG_TYPE_MEM) { 2810 iwmr->page_size = ib_umem_find_best_pgsz(region, 2811 iwdev->rf->sc_dev.hw_attrs.page_size_cap, 2812 virt); 2813 if (unlikely(!iwmr->page_size)) { 2814 kfree(iwmr); 2815 ib_umem_release(region); 2816 return ERR_PTR(-EOPNOTSUPP); 2817 } 2818 } 2819 iwmr->len = region->length; 2820 iwpbl->user_base = virt; 2821 palloc = &iwpbl->pble_alloc; 2822 iwmr->type = req.reg_type; 2823 iwmr->page_cnt = ib_umem_num_dma_blocks(region, iwmr->page_size); 2824 2825 switch (req.reg_type) { 2826 case IRDMA_MEMREG_TYPE_QP: 2827 total = req.sq_pages + req.rq_pages + shadow_pgcnt; 2828 if (total > iwmr->page_cnt) { 2829 err = -EINVAL; 2830 goto error; 2831 } 2832 total = req.sq_pages + req.rq_pages; 2833 use_pbles = (total > 2); 2834 err = irdma_handle_q_mem(iwdev, &req, iwpbl, use_pbles); 2835 if (err) 2836 goto error; 2837 2838 ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, 2839 ibucontext); 2840 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); 2841 list_add_tail(&iwpbl->list, &ucontext->qp_reg_mem_list); 2842 iwpbl->on_list = true; 2843 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); 2844 break; 2845 case IRDMA_MEMREG_TYPE_CQ: 2846 if (iwdev->rf->sc_dev.hw_attrs.uk_attrs.feature_flags & IRDMA_FEATURE_CQ_RESIZE) 2847 shadow_pgcnt = 0; 2848 total = req.cq_pages + shadow_pgcnt; 2849 if (total > iwmr->page_cnt) { 2850 err = -EINVAL; 2851 goto error; 2852 } 2853 2854 use_pbles = (req.cq_pages > 1); 2855 err = irdma_handle_q_mem(iwdev, &req, iwpbl, use_pbles); 2856 if (err) 2857 goto error; 2858 2859 ucontext = rdma_udata_to_drv_context(udata, struct irdma_ucontext, 2860 ibucontext); 2861 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); 2862 list_add_tail(&iwpbl->list, &ucontext->cq_reg_mem_list); 2863 iwpbl->on_list = true; 2864 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); 2865 break; 2866 case IRDMA_MEMREG_TYPE_MEM: 2867 use_pbles = (iwmr->page_cnt != 1); 2868 2869 err = irdma_setup_pbles(iwdev->rf, iwmr, use_pbles, false); 2870 if (err) 2871 goto error; 2872 2873 if (use_pbles) { 2874 ret = irdma_check_mr_contiguous(palloc, 2875 iwmr->page_size); 2876 if (ret) { 2877 irdma_free_pble(iwdev->rf->pble_rsrc, palloc); 2878 iwpbl->pbl_allocated = false; 2879 } 2880 } 2881 2882 stag = irdma_create_stag(iwdev); 2883 if (!stag) { 2884 err = -ENOMEM; 2885 goto error; 2886 } 2887 2888 iwmr->stag = stag; 2889 iwmr->ibmr.rkey = stag; 2890 iwmr->ibmr.lkey = stag; 2891 err = irdma_hwreg_mr(iwdev, iwmr, access); 2892 if (err) { 2893 irdma_free_stag(iwdev, stag); 2894 goto error; 2895 } 2896 2897 break; 2898 default: 2899 goto error; 2900 } 2901 2902 iwmr->type = req.reg_type; 2903 2904 return &iwmr->ibmr; 2905 2906 error: 2907 if (palloc->level != PBLE_LEVEL_0 && iwpbl->pbl_allocated) 2908 irdma_free_pble(iwdev->rf->pble_rsrc, palloc); 2909 ib_umem_release(region); 2910 kfree(iwmr); 2911 2912 return ERR_PTR(err); 2913 } 2914 2915 /** 2916 * irdma_reg_phys_mr - register kernel physical memory 2917 * @pd: ibpd pointer 2918 * @addr: physical address of memory to register 2919 * @size: size of memory to register 2920 * @access: Access rights 2921 * @iova_start: start of virtual address for physical buffers 2922 */ 2923 struct ib_mr *irdma_reg_phys_mr(struct ib_pd *pd, u64 addr, u64 size, int access, 2924 u64 *iova_start) 2925 { 2926 struct irdma_device *iwdev = to_iwdev(pd->device); 2927 struct irdma_pbl *iwpbl; 2928 struct irdma_mr *iwmr; 2929 u32 stag; 2930 int ret; 2931 2932 iwmr = kzalloc(sizeof(*iwmr), GFP_KERNEL); 2933 if (!iwmr) 2934 return ERR_PTR(-ENOMEM); 2935 2936 iwmr->ibmr.pd = pd; 2937 iwmr->ibmr.device = pd->device; 2938 iwpbl = &iwmr->iwpbl; 2939 iwpbl->iwmr = iwmr; 2940 iwmr->type = IRDMA_MEMREG_TYPE_MEM; 2941 iwpbl->user_base = *iova_start; 2942 stag = irdma_create_stag(iwdev); 2943 if (!stag) { 2944 ret = -ENOMEM; 2945 goto err; 2946 } 2947 2948 iwmr->stag = stag; 2949 iwmr->ibmr.iova = *iova_start; 2950 iwmr->ibmr.rkey = stag; 2951 iwmr->ibmr.lkey = stag; 2952 iwmr->page_cnt = 1; 2953 iwmr->pgaddrmem[0] = addr; 2954 iwmr->len = size; 2955 iwmr->page_size = SZ_4K; 2956 ret = irdma_hwreg_mr(iwdev, iwmr, access); 2957 if (ret) { 2958 irdma_free_stag(iwdev, stag); 2959 goto err; 2960 } 2961 2962 return &iwmr->ibmr; 2963 2964 err: 2965 kfree(iwmr); 2966 2967 return ERR_PTR(ret); 2968 } 2969 2970 /** 2971 * irdma_get_dma_mr - register physical mem 2972 * @pd: ptr of pd 2973 * @acc: access for memory 2974 */ 2975 static struct ib_mr *irdma_get_dma_mr(struct ib_pd *pd, int acc) 2976 { 2977 u64 kva = 0; 2978 2979 return irdma_reg_phys_mr(pd, 0, 0, acc, &kva); 2980 } 2981 2982 /** 2983 * irdma_del_memlist - Deleting pbl list entries for CQ/QP 2984 * @iwmr: iwmr for IB's user page addresses 2985 * @ucontext: ptr to user context 2986 */ 2987 static void irdma_del_memlist(struct irdma_mr *iwmr, 2988 struct irdma_ucontext *ucontext) 2989 { 2990 struct irdma_pbl *iwpbl = &iwmr->iwpbl; 2991 unsigned long flags; 2992 2993 switch (iwmr->type) { 2994 case IRDMA_MEMREG_TYPE_CQ: 2995 spin_lock_irqsave(&ucontext->cq_reg_mem_list_lock, flags); 2996 if (iwpbl->on_list) { 2997 iwpbl->on_list = false; 2998 list_del(&iwpbl->list); 2999 } 3000 spin_unlock_irqrestore(&ucontext->cq_reg_mem_list_lock, flags); 3001 break; 3002 case IRDMA_MEMREG_TYPE_QP: 3003 spin_lock_irqsave(&ucontext->qp_reg_mem_list_lock, flags); 3004 if (iwpbl->on_list) { 3005 iwpbl->on_list = false; 3006 list_del(&iwpbl->list); 3007 } 3008 spin_unlock_irqrestore(&ucontext->qp_reg_mem_list_lock, flags); 3009 break; 3010 default: 3011 break; 3012 } 3013 } 3014 3015 /** 3016 * irdma_dereg_mr - deregister mr 3017 * @ib_mr: mr ptr for dereg 3018 * @udata: user data 3019 */ 3020 static int irdma_dereg_mr(struct ib_mr *ib_mr, struct ib_udata *udata) 3021 { 3022 struct ib_pd *ibpd = ib_mr->pd; 3023 struct irdma_pd *iwpd = to_iwpd(ibpd); 3024 struct irdma_mr *iwmr = to_iwmr(ib_mr); 3025 struct irdma_device *iwdev = to_iwdev(ib_mr->device); 3026 struct irdma_dealloc_stag_info *info; 3027 struct irdma_pbl *iwpbl = &iwmr->iwpbl; 3028 struct irdma_pble_alloc *palloc = &iwpbl->pble_alloc; 3029 struct irdma_cqp_request *cqp_request; 3030 struct cqp_cmds_info *cqp_info; 3031 int status; 3032 3033 if (iwmr->type != IRDMA_MEMREG_TYPE_MEM) { 3034 if (iwmr->region) { 3035 struct irdma_ucontext *ucontext; 3036 3037 ucontext = rdma_udata_to_drv_context(udata, 3038 struct irdma_ucontext, 3039 ibucontext); 3040 irdma_del_memlist(iwmr, ucontext); 3041 } 3042 goto done; 3043 } 3044 3045 cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); 3046 if (!cqp_request) 3047 return -ENOMEM; 3048 3049 cqp_info = &cqp_request->info; 3050 info = &cqp_info->in.u.dealloc_stag.info; 3051 memset(info, 0, sizeof(*info)); 3052 info->pd_id = iwpd->sc_pd.pd_id; 3053 info->stag_idx = ib_mr->rkey >> IRDMA_CQPSQ_STAG_IDX_S; 3054 info->mr = true; 3055 if (iwpbl->pbl_allocated) 3056 info->dealloc_pbl = true; 3057 3058 cqp_info->cqp_cmd = IRDMA_OP_DEALLOC_STAG; 3059 cqp_info->post_sq = 1; 3060 cqp_info->in.u.dealloc_stag.dev = &iwdev->rf->sc_dev; 3061 cqp_info->in.u.dealloc_stag.scratch = (uintptr_t)cqp_request; 3062 status = irdma_handle_cqp_op(iwdev->rf, cqp_request); 3063 irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); 3064 if (status) 3065 return status; 3066 3067 irdma_free_stag(iwdev, iwmr->stag); 3068 done: 3069 if (iwpbl->pbl_allocated) 3070 irdma_free_pble(iwdev->rf->pble_rsrc, palloc); 3071 ib_umem_release(iwmr->region); 3072 kfree(iwmr); 3073 3074 return 0; 3075 } 3076 3077 /** 3078 * irdma_post_send - kernel application wr 3079 * @ibqp: qp ptr for wr 3080 * @ib_wr: work request ptr 3081 * @bad_wr: return of bad wr if err 3082 */ 3083 static int irdma_post_send(struct ib_qp *ibqp, 3084 const struct ib_send_wr *ib_wr, 3085 const struct ib_send_wr **bad_wr) 3086 { 3087 struct irdma_qp *iwqp; 3088 struct irdma_qp_uk *ukqp; 3089 struct irdma_sc_dev *dev; 3090 struct irdma_post_sq_info info; 3091 int err = 0; 3092 unsigned long flags; 3093 bool inv_stag; 3094 struct irdma_ah *ah; 3095 3096 iwqp = to_iwqp(ibqp); 3097 ukqp = &iwqp->sc_qp.qp_uk; 3098 dev = &iwqp->iwdev->rf->sc_dev; 3099 3100 spin_lock_irqsave(&iwqp->lock, flags); 3101 while (ib_wr) { 3102 memset(&info, 0, sizeof(info)); 3103 inv_stag = false; 3104 info.wr_id = (ib_wr->wr_id); 3105 if ((ib_wr->send_flags & IB_SEND_SIGNALED) || iwqp->sig_all) 3106 info.signaled = true; 3107 if (ib_wr->send_flags & IB_SEND_FENCE) 3108 info.read_fence = true; 3109 switch (ib_wr->opcode) { 3110 case IB_WR_SEND_WITH_IMM: 3111 if (ukqp->qp_caps & IRDMA_SEND_WITH_IMM) { 3112 info.imm_data_valid = true; 3113 info.imm_data = ntohl(ib_wr->ex.imm_data); 3114 } else { 3115 err = -EINVAL; 3116 break; 3117 } 3118 fallthrough; 3119 case IB_WR_SEND: 3120 case IB_WR_SEND_WITH_INV: 3121 if (ib_wr->opcode == IB_WR_SEND || 3122 ib_wr->opcode == IB_WR_SEND_WITH_IMM) { 3123 if (ib_wr->send_flags & IB_SEND_SOLICITED) 3124 info.op_type = IRDMA_OP_TYPE_SEND_SOL; 3125 else 3126 info.op_type = IRDMA_OP_TYPE_SEND; 3127 } else { 3128 if (ib_wr->send_flags & IB_SEND_SOLICITED) 3129 info.op_type = IRDMA_OP_TYPE_SEND_SOL_INV; 3130 else 3131 info.op_type = IRDMA_OP_TYPE_SEND_INV; 3132 info.stag_to_inv = ib_wr->ex.invalidate_rkey; 3133 } 3134 3135 info.op.send.num_sges = ib_wr->num_sge; 3136 info.op.send.sg_list = ib_wr->sg_list; 3137 if (iwqp->ibqp.qp_type == IB_QPT_UD || 3138 iwqp->ibqp.qp_type == IB_QPT_GSI) { 3139 ah = to_iwah(ud_wr(ib_wr)->ah); 3140 info.op.send.ah_id = ah->sc_ah.ah_info.ah_idx; 3141 info.op.send.qkey = ud_wr(ib_wr)->remote_qkey; 3142 info.op.send.dest_qp = ud_wr(ib_wr)->remote_qpn; 3143 } 3144 3145 if (ib_wr->send_flags & IB_SEND_INLINE) 3146 err = irdma_uk_inline_send(ukqp, &info, false); 3147 else 3148 err = irdma_uk_send(ukqp, &info, false); 3149 break; 3150 case IB_WR_RDMA_WRITE_WITH_IMM: 3151 if (ukqp->qp_caps & IRDMA_WRITE_WITH_IMM) { 3152 info.imm_data_valid = true; 3153 info.imm_data = ntohl(ib_wr->ex.imm_data); 3154 } else { 3155 err = -EINVAL; 3156 break; 3157 } 3158 fallthrough; 3159 case IB_WR_RDMA_WRITE: 3160 if (ib_wr->send_flags & IB_SEND_SOLICITED) 3161 info.op_type = IRDMA_OP_TYPE_RDMA_WRITE_SOL; 3162 else 3163 info.op_type = IRDMA_OP_TYPE_RDMA_WRITE; 3164 3165 info.op.rdma_write.num_lo_sges = ib_wr->num_sge; 3166 info.op.rdma_write.lo_sg_list = ib_wr->sg_list; 3167 info.op.rdma_write.rem_addr.addr = 3168 rdma_wr(ib_wr)->remote_addr; 3169 info.op.rdma_write.rem_addr.lkey = rdma_wr(ib_wr)->rkey; 3170 if (ib_wr->send_flags & IB_SEND_INLINE) 3171 err = irdma_uk_inline_rdma_write(ukqp, &info, false); 3172 else 3173 err = irdma_uk_rdma_write(ukqp, &info, false); 3174 break; 3175 case IB_WR_RDMA_READ_WITH_INV: 3176 inv_stag = true; 3177 fallthrough; 3178 case IB_WR_RDMA_READ: 3179 if (ib_wr->num_sge > 3180 dev->hw_attrs.uk_attrs.max_hw_read_sges) { 3181 err = -EINVAL; 3182 break; 3183 } 3184 info.op_type = IRDMA_OP_TYPE_RDMA_READ; 3185 info.op.rdma_read.rem_addr.addr = rdma_wr(ib_wr)->remote_addr; 3186 info.op.rdma_read.rem_addr.lkey = rdma_wr(ib_wr)->rkey; 3187 info.op.rdma_read.lo_sg_list = (void *)ib_wr->sg_list; 3188 info.op.rdma_read.num_lo_sges = ib_wr->num_sge; 3189 err = irdma_uk_rdma_read(ukqp, &info, inv_stag, false); 3190 break; 3191 case IB_WR_LOCAL_INV: 3192 info.op_type = IRDMA_OP_TYPE_INV_STAG; 3193 info.op.inv_local_stag.target_stag = ib_wr->ex.invalidate_rkey; 3194 err = irdma_uk_stag_local_invalidate(ukqp, &info, true); 3195 break; 3196 case IB_WR_REG_MR: { 3197 struct irdma_mr *iwmr = to_iwmr(reg_wr(ib_wr)->mr); 3198 struct irdma_pble_alloc *palloc = &iwmr->iwpbl.pble_alloc; 3199 struct irdma_fast_reg_stag_info stag_info = {}; 3200 3201 stag_info.signaled = info.signaled; 3202 stag_info.read_fence = info.read_fence; 3203 stag_info.access_rights = irdma_get_mr_access(reg_wr(ib_wr)->access); 3204 stag_info.stag_key = reg_wr(ib_wr)->key & 0xff; 3205 stag_info.stag_idx = reg_wr(ib_wr)->key >> 8; 3206 stag_info.page_size = reg_wr(ib_wr)->mr->page_size; 3207 stag_info.wr_id = ib_wr->wr_id; 3208 stag_info.addr_type = IRDMA_ADDR_TYPE_VA_BASED; 3209 stag_info.va = (void *)(uintptr_t)iwmr->ibmr.iova; 3210 stag_info.total_len = iwmr->ibmr.length; 3211 stag_info.reg_addr_pa = *palloc->level1.addr; 3212 stag_info.first_pm_pbl_index = palloc->level1.idx; 3213 stag_info.local_fence = ib_wr->send_flags & IB_SEND_FENCE; 3214 if (iwmr->npages > IRDMA_MIN_PAGES_PER_FMR) 3215 stag_info.chunk_size = 1; 3216 err = irdma_sc_mr_fast_register(&iwqp->sc_qp, &stag_info, 3217 true); 3218 break; 3219 } 3220 default: 3221 err = -EINVAL; 3222 ibdev_dbg(&iwqp->iwdev->ibdev, 3223 "VERBS: upost_send bad opcode = 0x%x\n", 3224 ib_wr->opcode); 3225 break; 3226 } 3227 3228 if (err) 3229 break; 3230 ib_wr = ib_wr->next; 3231 } 3232 3233 if (!iwqp->flush_issued) { 3234 if (iwqp->hw_iwarp_state <= IRDMA_QP_STATE_RTS) 3235 irdma_uk_qp_post_wr(ukqp); 3236 spin_unlock_irqrestore(&iwqp->lock, flags); 3237 } else { 3238 spin_unlock_irqrestore(&iwqp->lock, flags); 3239 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush, 3240 msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS)); 3241 } 3242 if (err) 3243 *bad_wr = ib_wr; 3244 3245 return err; 3246 } 3247 3248 /** 3249 * irdma_post_recv - post receive wr for kernel application 3250 * @ibqp: ib qp pointer 3251 * @ib_wr: work request for receive 3252 * @bad_wr: bad wr caused an error 3253 */ 3254 static int irdma_post_recv(struct ib_qp *ibqp, 3255 const struct ib_recv_wr *ib_wr, 3256 const struct ib_recv_wr **bad_wr) 3257 { 3258 struct irdma_qp *iwqp; 3259 struct irdma_qp_uk *ukqp; 3260 struct irdma_post_rq_info post_recv = {}; 3261 unsigned long flags; 3262 int err = 0; 3263 3264 iwqp = to_iwqp(ibqp); 3265 ukqp = &iwqp->sc_qp.qp_uk; 3266 3267 spin_lock_irqsave(&iwqp->lock, flags); 3268 while (ib_wr) { 3269 post_recv.num_sges = ib_wr->num_sge; 3270 post_recv.wr_id = ib_wr->wr_id; 3271 post_recv.sg_list = ib_wr->sg_list; 3272 err = irdma_uk_post_receive(ukqp, &post_recv); 3273 if (err) { 3274 ibdev_dbg(&iwqp->iwdev->ibdev, 3275 "VERBS: post_recv err %d\n", err); 3276 goto out; 3277 } 3278 3279 ib_wr = ib_wr->next; 3280 } 3281 3282 out: 3283 spin_unlock_irqrestore(&iwqp->lock, flags); 3284 if (iwqp->flush_issued) 3285 mod_delayed_work(iwqp->iwdev->cleanup_wq, &iwqp->dwork_flush, 3286 msecs_to_jiffies(IRDMA_FLUSH_DELAY_MS)); 3287 3288 if (err) 3289 *bad_wr = ib_wr; 3290 3291 return err; 3292 } 3293 3294 /** 3295 * irdma_flush_err_to_ib_wc_status - return change flush error code to IB status 3296 * @opcode: iwarp flush code 3297 */ 3298 static enum ib_wc_status irdma_flush_err_to_ib_wc_status(enum irdma_flush_opcode opcode) 3299 { 3300 switch (opcode) { 3301 case FLUSH_PROT_ERR: 3302 return IB_WC_LOC_PROT_ERR; 3303 case FLUSH_REM_ACCESS_ERR: 3304 return IB_WC_REM_ACCESS_ERR; 3305 case FLUSH_LOC_QP_OP_ERR: 3306 return IB_WC_LOC_QP_OP_ERR; 3307 case FLUSH_REM_OP_ERR: 3308 return IB_WC_REM_OP_ERR; 3309 case FLUSH_LOC_LEN_ERR: 3310 return IB_WC_LOC_LEN_ERR; 3311 case FLUSH_GENERAL_ERR: 3312 return IB_WC_WR_FLUSH_ERR; 3313 case FLUSH_RETRY_EXC_ERR: 3314 return IB_WC_RETRY_EXC_ERR; 3315 case FLUSH_MW_BIND_ERR: 3316 return IB_WC_MW_BIND_ERR; 3317 case FLUSH_REM_INV_REQ_ERR: 3318 return IB_WC_REM_INV_REQ_ERR; 3319 case FLUSH_FATAL_ERR: 3320 default: 3321 return IB_WC_FATAL_ERR; 3322 } 3323 } 3324 3325 /** 3326 * irdma_process_cqe - process cqe info 3327 * @entry: processed cqe 3328 * @cq_poll_info: cqe info 3329 */ 3330 static void irdma_process_cqe(struct ib_wc *entry, 3331 struct irdma_cq_poll_info *cq_poll_info) 3332 { 3333 struct irdma_sc_qp *qp; 3334 3335 entry->wc_flags = 0; 3336 entry->pkey_index = 0; 3337 entry->wr_id = cq_poll_info->wr_id; 3338 3339 qp = cq_poll_info->qp_handle; 3340 entry->qp = qp->qp_uk.back_qp; 3341 3342 if (cq_poll_info->error) { 3343 entry->status = (cq_poll_info->comp_status == IRDMA_COMPL_STATUS_FLUSHED) ? 3344 irdma_flush_err_to_ib_wc_status(cq_poll_info->minor_err) : IB_WC_GENERAL_ERR; 3345 3346 entry->vendor_err = cq_poll_info->major_err << 16 | 3347 cq_poll_info->minor_err; 3348 } else { 3349 entry->status = IB_WC_SUCCESS; 3350 if (cq_poll_info->imm_valid) { 3351 entry->ex.imm_data = htonl(cq_poll_info->imm_data); 3352 entry->wc_flags |= IB_WC_WITH_IMM; 3353 } 3354 if (cq_poll_info->ud_smac_valid) { 3355 ether_addr_copy(entry->smac, cq_poll_info->ud_smac); 3356 entry->wc_flags |= IB_WC_WITH_SMAC; 3357 } 3358 3359 if (cq_poll_info->ud_vlan_valid) { 3360 u16 vlan = cq_poll_info->ud_vlan & VLAN_VID_MASK; 3361 3362 entry->sl = cq_poll_info->ud_vlan >> VLAN_PRIO_SHIFT; 3363 if (vlan) { 3364 entry->vlan_id = vlan; 3365 entry->wc_flags |= IB_WC_WITH_VLAN; 3366 } 3367 } else { 3368 entry->sl = 0; 3369 } 3370 } 3371 3372 if (cq_poll_info->q_type == IRDMA_CQE_QTYPE_SQ) { 3373 set_ib_wc_op_sq(cq_poll_info, entry); 3374 } else { 3375 set_ib_wc_op_rq(cq_poll_info, entry, 3376 qp->qp_uk.qp_caps & IRDMA_SEND_WITH_IMM ? 3377 true : false); 3378 if (qp->qp_uk.qp_type != IRDMA_QP_TYPE_ROCE_UD && 3379 cq_poll_info->stag_invalid_set) { 3380 entry->ex.invalidate_rkey = cq_poll_info->inv_stag; 3381 entry->wc_flags |= IB_WC_WITH_INVALIDATE; 3382 } 3383 } 3384 3385 if (qp->qp_uk.qp_type == IRDMA_QP_TYPE_ROCE_UD) { 3386 entry->src_qp = cq_poll_info->ud_src_qpn; 3387 entry->slid = 0; 3388 entry->wc_flags |= 3389 (IB_WC_GRH | IB_WC_WITH_NETWORK_HDR_TYPE); 3390 entry->network_hdr_type = cq_poll_info->ipv4 ? 3391 RDMA_NETWORK_IPV4 : 3392 RDMA_NETWORK_IPV6; 3393 } else { 3394 entry->src_qp = cq_poll_info->qp_id; 3395 } 3396 3397 entry->byte_len = cq_poll_info->bytes_xfered; 3398 } 3399 3400 /** 3401 * irdma_poll_one - poll one entry of the CQ 3402 * @ukcq: ukcq to poll 3403 * @cur_cqe: current CQE info to be filled in 3404 * @entry: ibv_wc object to be filled for non-extended CQ or NULL for extended CQ 3405 * 3406 * Returns the internal irdma device error code or 0 on success 3407 */ 3408 static inline int irdma_poll_one(struct irdma_cq_uk *ukcq, 3409 struct irdma_cq_poll_info *cur_cqe, 3410 struct ib_wc *entry) 3411 { 3412 int ret = irdma_uk_cq_poll_cmpl(ukcq, cur_cqe); 3413 3414 if (ret) 3415 return ret; 3416 3417 irdma_process_cqe(entry, cur_cqe); 3418 3419 return 0; 3420 } 3421 3422 /** 3423 * __irdma_poll_cq - poll cq for completion (kernel apps) 3424 * @iwcq: cq to poll 3425 * @num_entries: number of entries to poll 3426 * @entry: wr of a completed entry 3427 */ 3428 static int __irdma_poll_cq(struct irdma_cq *iwcq, int num_entries, struct ib_wc *entry) 3429 { 3430 struct list_head *tmp_node, *list_node; 3431 struct irdma_cq_buf *last_buf = NULL; 3432 struct irdma_cq_poll_info *cur_cqe = &iwcq->cur_cqe; 3433 struct irdma_cq_buf *cq_buf; 3434 int ret; 3435 struct irdma_device *iwdev; 3436 struct irdma_cq_uk *ukcq; 3437 bool cq_new_cqe = false; 3438 int resized_bufs = 0; 3439 int npolled = 0; 3440 3441 iwdev = to_iwdev(iwcq->ibcq.device); 3442 ukcq = &iwcq->sc_cq.cq_uk; 3443 3444 /* go through the list of previously resized CQ buffers */ 3445 list_for_each_safe(list_node, tmp_node, &iwcq->resize_list) { 3446 cq_buf = container_of(list_node, struct irdma_cq_buf, list); 3447 while (npolled < num_entries) { 3448 ret = irdma_poll_one(&cq_buf->cq_uk, cur_cqe, entry + npolled); 3449 if (!ret) { 3450 ++npolled; 3451 cq_new_cqe = true; 3452 continue; 3453 } 3454 if (ret == -ENOENT) 3455 break; 3456 /* QP using the CQ is destroyed. Skip reporting this CQE */ 3457 if (ret == -EFAULT) { 3458 cq_new_cqe = true; 3459 continue; 3460 } 3461 goto error; 3462 } 3463 3464 /* save the resized CQ buffer which received the last cqe */ 3465 if (cq_new_cqe) 3466 last_buf = cq_buf; 3467 cq_new_cqe = false; 3468 } 3469 3470 /* check the current CQ for new cqes */ 3471 while (npolled < num_entries) { 3472 ret = irdma_poll_one(ukcq, cur_cqe, entry + npolled); 3473 if (ret == -ENOENT) { 3474 ret = irdma_generated_cmpls(iwcq, cur_cqe); 3475 if (!ret) 3476 irdma_process_cqe(entry + npolled, cur_cqe); 3477 } 3478 if (!ret) { 3479 ++npolled; 3480 cq_new_cqe = true; 3481 continue; 3482 } 3483 3484 if (ret == -ENOENT) 3485 break; 3486 /* QP using the CQ is destroyed. Skip reporting this CQE */ 3487 if (ret == -EFAULT) { 3488 cq_new_cqe = true; 3489 continue; 3490 } 3491 goto error; 3492 } 3493 3494 if (cq_new_cqe) 3495 /* all previous CQ resizes are complete */ 3496 resized_bufs = irdma_process_resize_list(iwcq, iwdev, NULL); 3497 else if (last_buf) 3498 /* only CQ resizes up to the last_buf are complete */ 3499 resized_bufs = irdma_process_resize_list(iwcq, iwdev, last_buf); 3500 if (resized_bufs) 3501 /* report to the HW the number of complete CQ resizes */ 3502 irdma_uk_cq_set_resized_cnt(ukcq, resized_bufs); 3503 3504 return npolled; 3505 error: 3506 ibdev_dbg(&iwdev->ibdev, "%s: Error polling CQ, irdma_err: %d\n", 3507 __func__, ret); 3508 3509 return ret; 3510 } 3511 3512 /** 3513 * irdma_poll_cq - poll cq for completion (kernel apps) 3514 * @ibcq: cq to poll 3515 * @num_entries: number of entries to poll 3516 * @entry: wr of a completed entry 3517 */ 3518 static int irdma_poll_cq(struct ib_cq *ibcq, int num_entries, 3519 struct ib_wc *entry) 3520 { 3521 struct irdma_cq *iwcq; 3522 unsigned long flags; 3523 int ret; 3524 3525 iwcq = to_iwcq(ibcq); 3526 3527 spin_lock_irqsave(&iwcq->lock, flags); 3528 ret = __irdma_poll_cq(iwcq, num_entries, entry); 3529 spin_unlock_irqrestore(&iwcq->lock, flags); 3530 3531 return ret; 3532 } 3533 3534 /** 3535 * irdma_req_notify_cq - arm cq kernel application 3536 * @ibcq: cq to arm 3537 * @notify_flags: notofication flags 3538 */ 3539 static int irdma_req_notify_cq(struct ib_cq *ibcq, 3540 enum ib_cq_notify_flags notify_flags) 3541 { 3542 struct irdma_cq *iwcq; 3543 struct irdma_cq_uk *ukcq; 3544 unsigned long flags; 3545 enum irdma_cmpl_notify cq_notify; 3546 bool promo_event = false; 3547 int ret = 0; 3548 3549 cq_notify = notify_flags == IB_CQ_SOLICITED ? 3550 IRDMA_CQ_COMPL_SOLICITED : IRDMA_CQ_COMPL_EVENT; 3551 iwcq = to_iwcq(ibcq); 3552 ukcq = &iwcq->sc_cq.cq_uk; 3553 3554 spin_lock_irqsave(&iwcq->lock, flags); 3555 /* Only promote to arm the CQ for any event if the last arm event was solicited. */ 3556 if (iwcq->last_notify == IRDMA_CQ_COMPL_SOLICITED && notify_flags != IB_CQ_SOLICITED) 3557 promo_event = true; 3558 3559 if (!atomic_cmpxchg(&iwcq->armed, 0, 1) || promo_event) { 3560 iwcq->last_notify = cq_notify; 3561 irdma_uk_cq_request_notification(ukcq, cq_notify); 3562 } 3563 3564 if ((notify_flags & IB_CQ_REPORT_MISSED_EVENTS) && 3565 (!irdma_cq_empty(iwcq) || !list_empty(&iwcq->cmpl_generated))) 3566 ret = 1; 3567 spin_unlock_irqrestore(&iwcq->lock, flags); 3568 3569 return ret; 3570 } 3571 3572 static int irdma_roce_port_immutable(struct ib_device *ibdev, u32 port_num, 3573 struct ib_port_immutable *immutable) 3574 { 3575 struct ib_port_attr attr; 3576 int err; 3577 3578 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP; 3579 err = ib_query_port(ibdev, port_num, &attr); 3580 if (err) 3581 return err; 3582 3583 immutable->max_mad_size = IB_MGMT_MAD_SIZE; 3584 immutable->pkey_tbl_len = attr.pkey_tbl_len; 3585 immutable->gid_tbl_len = attr.gid_tbl_len; 3586 3587 return 0; 3588 } 3589 3590 static int irdma_iw_port_immutable(struct ib_device *ibdev, u32 port_num, 3591 struct ib_port_immutable *immutable) 3592 { 3593 struct ib_port_attr attr; 3594 int err; 3595 3596 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; 3597 err = ib_query_port(ibdev, port_num, &attr); 3598 if (err) 3599 return err; 3600 immutable->gid_tbl_len = attr.gid_tbl_len; 3601 3602 return 0; 3603 } 3604 3605 static const struct rdma_stat_desc irdma_hw_stat_descs[] = { 3606 /* 32bit names */ 3607 [IRDMA_HW_STAT_INDEX_RXVLANERR].name = "rxVlanErrors", 3608 [IRDMA_HW_STAT_INDEX_IP4RXDISCARD].name = "ip4InDiscards", 3609 [IRDMA_HW_STAT_INDEX_IP4RXTRUNC].name = "ip4InTruncatedPkts", 3610 [IRDMA_HW_STAT_INDEX_IP4TXNOROUTE].name = "ip4OutNoRoutes", 3611 [IRDMA_HW_STAT_INDEX_IP6RXDISCARD].name = "ip6InDiscards", 3612 [IRDMA_HW_STAT_INDEX_IP6RXTRUNC].name = "ip6InTruncatedPkts", 3613 [IRDMA_HW_STAT_INDEX_IP6TXNOROUTE].name = "ip6OutNoRoutes", 3614 [IRDMA_HW_STAT_INDEX_TCPRTXSEG].name = "tcpRetransSegs", 3615 [IRDMA_HW_STAT_INDEX_TCPRXOPTERR].name = "tcpInOptErrors", 3616 [IRDMA_HW_STAT_INDEX_TCPRXPROTOERR].name = "tcpInProtoErrors", 3617 [IRDMA_HW_STAT_INDEX_RXRPCNPHANDLED].name = "cnpHandled", 3618 [IRDMA_HW_STAT_INDEX_RXRPCNPIGNORED].name = "cnpIgnored", 3619 [IRDMA_HW_STAT_INDEX_TXNPCNPSENT].name = "cnpSent", 3620 3621 /* 64bit names */ 3622 [IRDMA_HW_STAT_INDEX_IP4RXOCTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3623 "ip4InOctets", 3624 [IRDMA_HW_STAT_INDEX_IP4RXPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3625 "ip4InPkts", 3626 [IRDMA_HW_STAT_INDEX_IP4RXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3627 "ip4InReasmRqd", 3628 [IRDMA_HW_STAT_INDEX_IP4RXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3629 "ip4InMcastOctets", 3630 [IRDMA_HW_STAT_INDEX_IP4RXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3631 "ip4InMcastPkts", 3632 [IRDMA_HW_STAT_INDEX_IP4TXOCTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3633 "ip4OutOctets", 3634 [IRDMA_HW_STAT_INDEX_IP4TXPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3635 "ip4OutPkts", 3636 [IRDMA_HW_STAT_INDEX_IP4TXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3637 "ip4OutSegRqd", 3638 [IRDMA_HW_STAT_INDEX_IP4TXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3639 "ip4OutMcastOctets", 3640 [IRDMA_HW_STAT_INDEX_IP4TXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3641 "ip4OutMcastPkts", 3642 [IRDMA_HW_STAT_INDEX_IP6RXOCTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3643 "ip6InOctets", 3644 [IRDMA_HW_STAT_INDEX_IP6RXPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3645 "ip6InPkts", 3646 [IRDMA_HW_STAT_INDEX_IP6RXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3647 "ip6InReasmRqd", 3648 [IRDMA_HW_STAT_INDEX_IP6RXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3649 "ip6InMcastOctets", 3650 [IRDMA_HW_STAT_INDEX_IP6RXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3651 "ip6InMcastPkts", 3652 [IRDMA_HW_STAT_INDEX_IP6TXOCTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3653 "ip6OutOctets", 3654 [IRDMA_HW_STAT_INDEX_IP6TXPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3655 "ip6OutPkts", 3656 [IRDMA_HW_STAT_INDEX_IP6TXFRAGS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3657 "ip6OutSegRqd", 3658 [IRDMA_HW_STAT_INDEX_IP6TXMCOCTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3659 "ip6OutMcastOctets", 3660 [IRDMA_HW_STAT_INDEX_IP6TXMCPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3661 "ip6OutMcastPkts", 3662 [IRDMA_HW_STAT_INDEX_TCPRXSEGS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3663 "tcpInSegs", 3664 [IRDMA_HW_STAT_INDEX_TCPTXSEG + IRDMA_HW_STAT_INDEX_MAX_32].name = 3665 "tcpOutSegs", 3666 [IRDMA_HW_STAT_INDEX_RDMARXRDS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3667 "iwInRdmaReads", 3668 [IRDMA_HW_STAT_INDEX_RDMARXSNDS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3669 "iwInRdmaSends", 3670 [IRDMA_HW_STAT_INDEX_RDMARXWRS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3671 "iwInRdmaWrites", 3672 [IRDMA_HW_STAT_INDEX_RDMATXRDS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3673 "iwOutRdmaReads", 3674 [IRDMA_HW_STAT_INDEX_RDMATXSNDS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3675 "iwOutRdmaSends", 3676 [IRDMA_HW_STAT_INDEX_RDMATXWRS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3677 "iwOutRdmaWrites", 3678 [IRDMA_HW_STAT_INDEX_RDMAVBND + IRDMA_HW_STAT_INDEX_MAX_32].name = 3679 "iwRdmaBnd", 3680 [IRDMA_HW_STAT_INDEX_RDMAVINV + IRDMA_HW_STAT_INDEX_MAX_32].name = 3681 "iwRdmaInv", 3682 [IRDMA_HW_STAT_INDEX_UDPRXPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3683 "RxUDP", 3684 [IRDMA_HW_STAT_INDEX_UDPTXPKTS + IRDMA_HW_STAT_INDEX_MAX_32].name = 3685 "TxUDP", 3686 [IRDMA_HW_STAT_INDEX_RXNPECNMARKEDPKTS + IRDMA_HW_STAT_INDEX_MAX_32] 3687 .name = "RxECNMrkd", 3688 }; 3689 3690 static void irdma_get_dev_fw_str(struct ib_device *dev, char *str) 3691 { 3692 struct irdma_device *iwdev = to_iwdev(dev); 3693 3694 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u", 3695 irdma_fw_major_ver(&iwdev->rf->sc_dev), 3696 irdma_fw_minor_ver(&iwdev->rf->sc_dev)); 3697 } 3698 3699 /** 3700 * irdma_alloc_hw_port_stats - Allocate a hw stats structure 3701 * @ibdev: device pointer from stack 3702 * @port_num: port number 3703 */ 3704 static struct rdma_hw_stats *irdma_alloc_hw_port_stats(struct ib_device *ibdev, 3705 u32 port_num) 3706 { 3707 int num_counters = IRDMA_HW_STAT_INDEX_MAX_32 + 3708 IRDMA_HW_STAT_INDEX_MAX_64; 3709 unsigned long lifespan = RDMA_HW_STATS_DEFAULT_LIFESPAN; 3710 3711 BUILD_BUG_ON(ARRAY_SIZE(irdma_hw_stat_descs) != 3712 (IRDMA_HW_STAT_INDEX_MAX_32 + IRDMA_HW_STAT_INDEX_MAX_64)); 3713 3714 return rdma_alloc_hw_stats_struct(irdma_hw_stat_descs, num_counters, 3715 lifespan); 3716 } 3717 3718 /** 3719 * irdma_get_hw_stats - Populates the rdma_hw_stats structure 3720 * @ibdev: device pointer from stack 3721 * @stats: stats pointer from stack 3722 * @port_num: port number 3723 * @index: which hw counter the stack is requesting we update 3724 */ 3725 static int irdma_get_hw_stats(struct ib_device *ibdev, 3726 struct rdma_hw_stats *stats, u32 port_num, 3727 int index) 3728 { 3729 struct irdma_device *iwdev = to_iwdev(ibdev); 3730 struct irdma_dev_hw_stats *hw_stats = &iwdev->vsi.pestat->hw_stats; 3731 3732 if (iwdev->rf->rdma_ver >= IRDMA_GEN_2) 3733 irdma_cqp_gather_stats_cmd(&iwdev->rf->sc_dev, iwdev->vsi.pestat, true); 3734 else 3735 irdma_cqp_gather_stats_gen1(&iwdev->rf->sc_dev, iwdev->vsi.pestat); 3736 3737 memcpy(&stats->value[0], hw_stats, sizeof(*hw_stats)); 3738 3739 return stats->num_counters; 3740 } 3741 3742 /** 3743 * irdma_query_gid - Query port GID 3744 * @ibdev: device pointer from stack 3745 * @port: port number 3746 * @index: Entry index 3747 * @gid: Global ID 3748 */ 3749 static int irdma_query_gid(struct ib_device *ibdev, u32 port, int index, 3750 union ib_gid *gid) 3751 { 3752 struct irdma_device *iwdev = to_iwdev(ibdev); 3753 3754 memset(gid->raw, 0, sizeof(gid->raw)); 3755 ether_addr_copy(gid->raw, iwdev->netdev->dev_addr); 3756 3757 return 0; 3758 } 3759 3760 /** 3761 * mcast_list_add - Add a new mcast item to list 3762 * @rf: RDMA PCI function 3763 * @new_elem: pointer to element to add 3764 */ 3765 static void mcast_list_add(struct irdma_pci_f *rf, 3766 struct mc_table_list *new_elem) 3767 { 3768 list_add(&new_elem->list, &rf->mc_qht_list.list); 3769 } 3770 3771 /** 3772 * mcast_list_del - Remove an mcast item from list 3773 * @mc_qht_elem: pointer to mcast table list element 3774 */ 3775 static void mcast_list_del(struct mc_table_list *mc_qht_elem) 3776 { 3777 if (mc_qht_elem) 3778 list_del(&mc_qht_elem->list); 3779 } 3780 3781 /** 3782 * mcast_list_lookup_ip - Search mcast list for address 3783 * @rf: RDMA PCI function 3784 * @ip_mcast: pointer to mcast IP address 3785 */ 3786 static struct mc_table_list *mcast_list_lookup_ip(struct irdma_pci_f *rf, 3787 u32 *ip_mcast) 3788 { 3789 struct mc_table_list *mc_qht_el; 3790 struct list_head *pos, *q; 3791 3792 list_for_each_safe (pos, q, &rf->mc_qht_list.list) { 3793 mc_qht_el = list_entry(pos, struct mc_table_list, list); 3794 if (!memcmp(mc_qht_el->mc_info.dest_ip, ip_mcast, 3795 sizeof(mc_qht_el->mc_info.dest_ip))) 3796 return mc_qht_el; 3797 } 3798 3799 return NULL; 3800 } 3801 3802 /** 3803 * irdma_mcast_cqp_op - perform a mcast cqp operation 3804 * @iwdev: irdma device 3805 * @mc_grp_ctx: mcast group info 3806 * @op: operation 3807 * 3808 * returns error status 3809 */ 3810 static int irdma_mcast_cqp_op(struct irdma_device *iwdev, 3811 struct irdma_mcast_grp_info *mc_grp_ctx, u8 op) 3812 { 3813 struct cqp_cmds_info *cqp_info; 3814 struct irdma_cqp_request *cqp_request; 3815 int status; 3816 3817 cqp_request = irdma_alloc_and_get_cqp_request(&iwdev->rf->cqp, true); 3818 if (!cqp_request) 3819 return -ENOMEM; 3820 3821 cqp_request->info.in.u.mc_create.info = *mc_grp_ctx; 3822 cqp_info = &cqp_request->info; 3823 cqp_info->cqp_cmd = op; 3824 cqp_info->post_sq = 1; 3825 cqp_info->in.u.mc_create.scratch = (uintptr_t)cqp_request; 3826 cqp_info->in.u.mc_create.cqp = &iwdev->rf->cqp.sc_cqp; 3827 status = irdma_handle_cqp_op(iwdev->rf, cqp_request); 3828 irdma_put_cqp_request(&iwdev->rf->cqp, cqp_request); 3829 3830 return status; 3831 } 3832 3833 /** 3834 * irdma_mcast_mac - Get the multicast MAC for an IP address 3835 * @ip_addr: IPv4 or IPv6 address 3836 * @mac: pointer to result MAC address 3837 * @ipv4: flag indicating IPv4 or IPv6 3838 * 3839 */ 3840 void irdma_mcast_mac(u32 *ip_addr, u8 *mac, bool ipv4) 3841 { 3842 u8 *ip = (u8 *)ip_addr; 3843 3844 if (ipv4) { 3845 unsigned char mac4[ETH_ALEN] = {0x01, 0x00, 0x5E, 0x00, 3846 0x00, 0x00}; 3847 3848 mac4[3] = ip[2] & 0x7F; 3849 mac4[4] = ip[1]; 3850 mac4[5] = ip[0]; 3851 ether_addr_copy(mac, mac4); 3852 } else { 3853 unsigned char mac6[ETH_ALEN] = {0x33, 0x33, 0x00, 0x00, 3854 0x00, 0x00}; 3855 3856 mac6[2] = ip[3]; 3857 mac6[3] = ip[2]; 3858 mac6[4] = ip[1]; 3859 mac6[5] = ip[0]; 3860 ether_addr_copy(mac, mac6); 3861 } 3862 } 3863 3864 /** 3865 * irdma_attach_mcast - attach a qp to a multicast group 3866 * @ibqp: ptr to qp 3867 * @ibgid: pointer to global ID 3868 * @lid: local ID 3869 * 3870 * returns error status 3871 */ 3872 static int irdma_attach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid) 3873 { 3874 struct irdma_qp *iwqp = to_iwqp(ibqp); 3875 struct irdma_device *iwdev = iwqp->iwdev; 3876 struct irdma_pci_f *rf = iwdev->rf; 3877 struct mc_table_list *mc_qht_elem; 3878 struct irdma_mcast_grp_ctx_entry_info mcg_info = {}; 3879 unsigned long flags; 3880 u32 ip_addr[4] = {}; 3881 u32 mgn; 3882 u32 no_mgs; 3883 int ret = 0; 3884 bool ipv4; 3885 u16 vlan_id; 3886 union irdma_sockaddr sgid_addr; 3887 unsigned char dmac[ETH_ALEN]; 3888 3889 rdma_gid2ip((struct sockaddr *)&sgid_addr, ibgid); 3890 3891 if (!ipv6_addr_v4mapped((struct in6_addr *)ibgid)) { 3892 irdma_copy_ip_ntohl(ip_addr, 3893 sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); 3894 irdma_netdev_vlan_ipv6(ip_addr, &vlan_id, NULL); 3895 ipv4 = false; 3896 ibdev_dbg(&iwdev->ibdev, 3897 "VERBS: qp_id=%d, IP6address=%pI6\n", ibqp->qp_num, 3898 ip_addr); 3899 irdma_mcast_mac(ip_addr, dmac, false); 3900 } else { 3901 ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr); 3902 ipv4 = true; 3903 vlan_id = irdma_get_vlan_ipv4(ip_addr); 3904 irdma_mcast_mac(ip_addr, dmac, true); 3905 ibdev_dbg(&iwdev->ibdev, 3906 "VERBS: qp_id=%d, IP4address=%pI4, MAC=%pM\n", 3907 ibqp->qp_num, ip_addr, dmac); 3908 } 3909 3910 spin_lock_irqsave(&rf->qh_list_lock, flags); 3911 mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr); 3912 if (!mc_qht_elem) { 3913 struct irdma_dma_mem *dma_mem_mc; 3914 3915 spin_unlock_irqrestore(&rf->qh_list_lock, flags); 3916 mc_qht_elem = kzalloc(sizeof(*mc_qht_elem), GFP_KERNEL); 3917 if (!mc_qht_elem) 3918 return -ENOMEM; 3919 3920 mc_qht_elem->mc_info.ipv4_valid = ipv4; 3921 memcpy(mc_qht_elem->mc_info.dest_ip, ip_addr, 3922 sizeof(mc_qht_elem->mc_info.dest_ip)); 3923 ret = irdma_alloc_rsrc(rf, rf->allocated_mcgs, rf->max_mcg, 3924 &mgn, &rf->next_mcg); 3925 if (ret) { 3926 kfree(mc_qht_elem); 3927 return -ENOMEM; 3928 } 3929 3930 mc_qht_elem->mc_info.mgn = mgn; 3931 dma_mem_mc = &mc_qht_elem->mc_grp_ctx.dma_mem_mc; 3932 dma_mem_mc->size = ALIGN(sizeof(u64) * IRDMA_MAX_MGS_PER_CTX, 3933 IRDMA_HW_PAGE_SIZE); 3934 dma_mem_mc->va = dma_alloc_coherent(rf->hw.device, 3935 dma_mem_mc->size, 3936 &dma_mem_mc->pa, 3937 GFP_KERNEL); 3938 if (!dma_mem_mc->va) { 3939 irdma_free_rsrc(rf, rf->allocated_mcgs, mgn); 3940 kfree(mc_qht_elem); 3941 return -ENOMEM; 3942 } 3943 3944 mc_qht_elem->mc_grp_ctx.mg_id = (u16)mgn; 3945 memcpy(mc_qht_elem->mc_grp_ctx.dest_ip_addr, ip_addr, 3946 sizeof(mc_qht_elem->mc_grp_ctx.dest_ip_addr)); 3947 mc_qht_elem->mc_grp_ctx.ipv4_valid = ipv4; 3948 mc_qht_elem->mc_grp_ctx.vlan_id = vlan_id; 3949 if (vlan_id < VLAN_N_VID) 3950 mc_qht_elem->mc_grp_ctx.vlan_valid = true; 3951 mc_qht_elem->mc_grp_ctx.hmc_fcn_id = iwdev->vsi.fcn_id; 3952 mc_qht_elem->mc_grp_ctx.qs_handle = 3953 iwqp->sc_qp.vsi->qos[iwqp->sc_qp.user_pri].qs_handle; 3954 ether_addr_copy(mc_qht_elem->mc_grp_ctx.dest_mac_addr, dmac); 3955 3956 spin_lock_irqsave(&rf->qh_list_lock, flags); 3957 mcast_list_add(rf, mc_qht_elem); 3958 } else { 3959 if (mc_qht_elem->mc_grp_ctx.no_of_mgs == 3960 IRDMA_MAX_MGS_PER_CTX) { 3961 spin_unlock_irqrestore(&rf->qh_list_lock, flags); 3962 return -ENOMEM; 3963 } 3964 } 3965 3966 mcg_info.qp_id = iwqp->ibqp.qp_num; 3967 no_mgs = mc_qht_elem->mc_grp_ctx.no_of_mgs; 3968 irdma_sc_add_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info); 3969 spin_unlock_irqrestore(&rf->qh_list_lock, flags); 3970 3971 /* Only if there is a change do we need to modify or create */ 3972 if (!no_mgs) { 3973 ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, 3974 IRDMA_OP_MC_CREATE); 3975 } else if (no_mgs != mc_qht_elem->mc_grp_ctx.no_of_mgs) { 3976 ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, 3977 IRDMA_OP_MC_MODIFY); 3978 } else { 3979 return 0; 3980 } 3981 3982 if (ret) 3983 goto error; 3984 3985 return 0; 3986 3987 error: 3988 irdma_sc_del_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info); 3989 if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) { 3990 mcast_list_del(mc_qht_elem); 3991 dma_free_coherent(rf->hw.device, 3992 mc_qht_elem->mc_grp_ctx.dma_mem_mc.size, 3993 mc_qht_elem->mc_grp_ctx.dma_mem_mc.va, 3994 mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa); 3995 mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL; 3996 irdma_free_rsrc(rf, rf->allocated_mcgs, 3997 mc_qht_elem->mc_grp_ctx.mg_id); 3998 kfree(mc_qht_elem); 3999 } 4000 4001 return ret; 4002 } 4003 4004 /** 4005 * irdma_detach_mcast - detach a qp from a multicast group 4006 * @ibqp: ptr to qp 4007 * @ibgid: pointer to global ID 4008 * @lid: local ID 4009 * 4010 * returns error status 4011 */ 4012 static int irdma_detach_mcast(struct ib_qp *ibqp, union ib_gid *ibgid, u16 lid) 4013 { 4014 struct irdma_qp *iwqp = to_iwqp(ibqp); 4015 struct irdma_device *iwdev = iwqp->iwdev; 4016 struct irdma_pci_f *rf = iwdev->rf; 4017 u32 ip_addr[4] = {}; 4018 struct mc_table_list *mc_qht_elem; 4019 struct irdma_mcast_grp_ctx_entry_info mcg_info = {}; 4020 int ret; 4021 unsigned long flags; 4022 union irdma_sockaddr sgid_addr; 4023 4024 rdma_gid2ip((struct sockaddr *)&sgid_addr, ibgid); 4025 if (!ipv6_addr_v4mapped((struct in6_addr *)ibgid)) 4026 irdma_copy_ip_ntohl(ip_addr, 4027 sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); 4028 else 4029 ip_addr[0] = ntohl(sgid_addr.saddr_in.sin_addr.s_addr); 4030 4031 spin_lock_irqsave(&rf->qh_list_lock, flags); 4032 mc_qht_elem = mcast_list_lookup_ip(rf, ip_addr); 4033 if (!mc_qht_elem) { 4034 spin_unlock_irqrestore(&rf->qh_list_lock, flags); 4035 ibdev_dbg(&iwdev->ibdev, 4036 "VERBS: address not found MCG\n"); 4037 return 0; 4038 } 4039 4040 mcg_info.qp_id = iwqp->ibqp.qp_num; 4041 irdma_sc_del_mcast_grp(&mc_qht_elem->mc_grp_ctx, &mcg_info); 4042 if (!mc_qht_elem->mc_grp_ctx.no_of_mgs) { 4043 mcast_list_del(mc_qht_elem); 4044 spin_unlock_irqrestore(&rf->qh_list_lock, flags); 4045 ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, 4046 IRDMA_OP_MC_DESTROY); 4047 if (ret) { 4048 ibdev_dbg(&iwdev->ibdev, 4049 "VERBS: failed MC_DESTROY MCG\n"); 4050 spin_lock_irqsave(&rf->qh_list_lock, flags); 4051 mcast_list_add(rf, mc_qht_elem); 4052 spin_unlock_irqrestore(&rf->qh_list_lock, flags); 4053 return -EAGAIN; 4054 } 4055 4056 dma_free_coherent(rf->hw.device, 4057 mc_qht_elem->mc_grp_ctx.dma_mem_mc.size, 4058 mc_qht_elem->mc_grp_ctx.dma_mem_mc.va, 4059 mc_qht_elem->mc_grp_ctx.dma_mem_mc.pa); 4060 mc_qht_elem->mc_grp_ctx.dma_mem_mc.va = NULL; 4061 irdma_free_rsrc(rf, rf->allocated_mcgs, 4062 mc_qht_elem->mc_grp_ctx.mg_id); 4063 kfree(mc_qht_elem); 4064 } else { 4065 spin_unlock_irqrestore(&rf->qh_list_lock, flags); 4066 ret = irdma_mcast_cqp_op(iwdev, &mc_qht_elem->mc_grp_ctx, 4067 IRDMA_OP_MC_MODIFY); 4068 if (ret) { 4069 ibdev_dbg(&iwdev->ibdev, 4070 "VERBS: failed Modify MCG\n"); 4071 return ret; 4072 } 4073 } 4074 4075 return 0; 4076 } 4077 4078 static int irdma_create_hw_ah(struct irdma_device *iwdev, struct irdma_ah *ah, bool sleep) 4079 { 4080 struct irdma_pci_f *rf = iwdev->rf; 4081 int err; 4082 4083 err = irdma_alloc_rsrc(rf, rf->allocated_ahs, rf->max_ah, &ah->sc_ah.ah_info.ah_idx, 4084 &rf->next_ah); 4085 if (err) 4086 return err; 4087 4088 err = irdma_ah_cqp_op(rf, &ah->sc_ah, IRDMA_OP_AH_CREATE, sleep, 4089 irdma_gsi_ud_qp_ah_cb, &ah->sc_ah); 4090 4091 if (err) { 4092 ibdev_dbg(&iwdev->ibdev, "VERBS: CQP-OP Create AH fail"); 4093 goto err_ah_create; 4094 } 4095 4096 if (!sleep) { 4097 int cnt = CQP_COMPL_WAIT_TIME_MS * CQP_TIMEOUT_THRESHOLD; 4098 4099 do { 4100 irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq); 4101 mdelay(1); 4102 } while (!ah->sc_ah.ah_info.ah_valid && --cnt); 4103 4104 if (!cnt) { 4105 ibdev_dbg(&iwdev->ibdev, "VERBS: CQP create AH timed out"); 4106 err = -ETIMEDOUT; 4107 goto err_ah_create; 4108 } 4109 } 4110 return 0; 4111 4112 err_ah_create: 4113 irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, ah->sc_ah.ah_info.ah_idx); 4114 4115 return err; 4116 } 4117 4118 static int irdma_setup_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr) 4119 { 4120 struct irdma_pd *pd = to_iwpd(ibah->pd); 4121 struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah); 4122 struct rdma_ah_attr *ah_attr = attr->ah_attr; 4123 const struct ib_gid_attr *sgid_attr; 4124 struct irdma_device *iwdev = to_iwdev(ibah->pd->device); 4125 struct irdma_pci_f *rf = iwdev->rf; 4126 struct irdma_sc_ah *sc_ah; 4127 struct irdma_ah_info *ah_info; 4128 union irdma_sockaddr sgid_addr, dgid_addr; 4129 int err; 4130 u8 dmac[ETH_ALEN]; 4131 4132 ah->pd = pd; 4133 sc_ah = &ah->sc_ah; 4134 sc_ah->ah_info.vsi = &iwdev->vsi; 4135 irdma_sc_init_ah(&rf->sc_dev, sc_ah); 4136 ah->sgid_index = ah_attr->grh.sgid_index; 4137 sgid_attr = ah_attr->grh.sgid_attr; 4138 memcpy(&ah->dgid, &ah_attr->grh.dgid, sizeof(ah->dgid)); 4139 rdma_gid2ip((struct sockaddr *)&sgid_addr, &sgid_attr->gid); 4140 rdma_gid2ip((struct sockaddr *)&dgid_addr, &ah_attr->grh.dgid); 4141 ah->av.attrs = *ah_attr; 4142 ah->av.net_type = rdma_gid_attr_network_type(sgid_attr); 4143 ah_info = &sc_ah->ah_info; 4144 ah_info->pd_idx = pd->sc_pd.pd_id; 4145 if (ah_attr->ah_flags & IB_AH_GRH) { 4146 ah_info->flow_label = ah_attr->grh.flow_label; 4147 ah_info->hop_ttl = ah_attr->grh.hop_limit; 4148 ah_info->tc_tos = ah_attr->grh.traffic_class; 4149 } 4150 4151 ether_addr_copy(dmac, ah_attr->roce.dmac); 4152 if (ah->av.net_type == RDMA_NETWORK_IPV4) { 4153 ah_info->ipv4_valid = true; 4154 ah_info->dest_ip_addr[0] = 4155 ntohl(dgid_addr.saddr_in.sin_addr.s_addr); 4156 ah_info->src_ip_addr[0] = 4157 ntohl(sgid_addr.saddr_in.sin_addr.s_addr); 4158 ah_info->do_lpbk = irdma_ipv4_is_lpb(ah_info->src_ip_addr[0], 4159 ah_info->dest_ip_addr[0]); 4160 if (ipv4_is_multicast(dgid_addr.saddr_in.sin_addr.s_addr)) { 4161 ah_info->do_lpbk = true; 4162 irdma_mcast_mac(ah_info->dest_ip_addr, dmac, true); 4163 } 4164 } else { 4165 irdma_copy_ip_ntohl(ah_info->dest_ip_addr, 4166 dgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); 4167 irdma_copy_ip_ntohl(ah_info->src_ip_addr, 4168 sgid_addr.saddr_in6.sin6_addr.in6_u.u6_addr32); 4169 ah_info->do_lpbk = irdma_ipv6_is_lpb(ah_info->src_ip_addr, 4170 ah_info->dest_ip_addr); 4171 if (rdma_is_multicast_addr(&dgid_addr.saddr_in6.sin6_addr)) { 4172 ah_info->do_lpbk = true; 4173 irdma_mcast_mac(ah_info->dest_ip_addr, dmac, false); 4174 } 4175 } 4176 4177 err = rdma_read_gid_l2_fields(sgid_attr, &ah_info->vlan_tag, 4178 ah_info->mac_addr); 4179 if (err) 4180 return err; 4181 4182 ah_info->dst_arpindex = irdma_add_arp(iwdev->rf, ah_info->dest_ip_addr, 4183 ah_info->ipv4_valid, dmac); 4184 4185 if (ah_info->dst_arpindex == -1) 4186 return -EINVAL; 4187 4188 if (ah_info->vlan_tag >= VLAN_N_VID && iwdev->dcb_vlan_mode) 4189 ah_info->vlan_tag = 0; 4190 4191 if (ah_info->vlan_tag < VLAN_N_VID) { 4192 ah_info->insert_vlan_tag = true; 4193 ah_info->vlan_tag |= 4194 rt_tos2priority(ah_info->tc_tos) << VLAN_PRIO_SHIFT; 4195 } 4196 4197 return 0; 4198 } 4199 4200 /** 4201 * irdma_ah_exists - Check for existing identical AH 4202 * @iwdev: irdma device 4203 * @new_ah: AH to check for 4204 * 4205 * returns true if AH is found, false if not found. 4206 */ 4207 static bool irdma_ah_exists(struct irdma_device *iwdev, 4208 struct irdma_ah *new_ah) 4209 { 4210 struct irdma_ah *ah; 4211 u32 key = new_ah->sc_ah.ah_info.dest_ip_addr[0] ^ 4212 new_ah->sc_ah.ah_info.dest_ip_addr[1] ^ 4213 new_ah->sc_ah.ah_info.dest_ip_addr[2] ^ 4214 new_ah->sc_ah.ah_info.dest_ip_addr[3]; 4215 4216 hash_for_each_possible(iwdev->ah_hash_tbl, ah, list, key) { 4217 /* Set ah_valid and ah_id the same so memcmp can work */ 4218 new_ah->sc_ah.ah_info.ah_idx = ah->sc_ah.ah_info.ah_idx; 4219 new_ah->sc_ah.ah_info.ah_valid = ah->sc_ah.ah_info.ah_valid; 4220 if (!memcmp(&ah->sc_ah.ah_info, &new_ah->sc_ah.ah_info, 4221 sizeof(ah->sc_ah.ah_info))) { 4222 refcount_inc(&ah->refcnt); 4223 new_ah->parent_ah = ah; 4224 return true; 4225 } 4226 } 4227 4228 return false; 4229 } 4230 4231 /** 4232 * irdma_destroy_ah - Destroy address handle 4233 * @ibah: pointer to address handle 4234 * @ah_flags: flags for sleepable 4235 */ 4236 static int irdma_destroy_ah(struct ib_ah *ibah, u32 ah_flags) 4237 { 4238 struct irdma_device *iwdev = to_iwdev(ibah->device); 4239 struct irdma_ah *ah = to_iwah(ibah); 4240 4241 if ((ah_flags & RDMA_DESTROY_AH_SLEEPABLE) && ah->parent_ah) { 4242 mutex_lock(&iwdev->ah_tbl_lock); 4243 if (!refcount_dec_and_test(&ah->parent_ah->refcnt)) { 4244 mutex_unlock(&iwdev->ah_tbl_lock); 4245 return 0; 4246 } 4247 hash_del(&ah->parent_ah->list); 4248 kfree(ah->parent_ah); 4249 mutex_unlock(&iwdev->ah_tbl_lock); 4250 } 4251 4252 irdma_ah_cqp_op(iwdev->rf, &ah->sc_ah, IRDMA_OP_AH_DESTROY, 4253 false, NULL, ah); 4254 4255 irdma_free_rsrc(iwdev->rf, iwdev->rf->allocated_ahs, 4256 ah->sc_ah.ah_info.ah_idx); 4257 4258 return 0; 4259 } 4260 4261 /** 4262 * irdma_create_user_ah - create user address handle 4263 * @ibah: address handle 4264 * @attr: address handle attributes 4265 * @udata: User data 4266 * 4267 * returns 0 on success, error otherwise 4268 */ 4269 static int irdma_create_user_ah(struct ib_ah *ibah, 4270 struct rdma_ah_init_attr *attr, 4271 struct ib_udata *udata) 4272 { 4273 #define IRDMA_CREATE_AH_MIN_RESP_LEN offsetofend(struct irdma_create_ah_resp, rsvd) 4274 struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah); 4275 struct irdma_device *iwdev = to_iwdev(ibah->pd->device); 4276 struct irdma_create_ah_resp uresp; 4277 struct irdma_ah *parent_ah; 4278 int err; 4279 4280 if (udata && udata->outlen < IRDMA_CREATE_AH_MIN_RESP_LEN) 4281 return -EINVAL; 4282 4283 err = irdma_setup_ah(ibah, attr); 4284 if (err) 4285 return err; 4286 mutex_lock(&iwdev->ah_tbl_lock); 4287 if (!irdma_ah_exists(iwdev, ah)) { 4288 err = irdma_create_hw_ah(iwdev, ah, true); 4289 if (err) { 4290 mutex_unlock(&iwdev->ah_tbl_lock); 4291 return err; 4292 } 4293 /* Add new AH to list */ 4294 parent_ah = kmemdup(ah, sizeof(*ah), GFP_KERNEL); 4295 if (parent_ah) { 4296 u32 key = parent_ah->sc_ah.ah_info.dest_ip_addr[0] ^ 4297 parent_ah->sc_ah.ah_info.dest_ip_addr[1] ^ 4298 parent_ah->sc_ah.ah_info.dest_ip_addr[2] ^ 4299 parent_ah->sc_ah.ah_info.dest_ip_addr[3]; 4300 4301 ah->parent_ah = parent_ah; 4302 hash_add(iwdev->ah_hash_tbl, &parent_ah->list, key); 4303 refcount_set(&parent_ah->refcnt, 1); 4304 } 4305 } 4306 mutex_unlock(&iwdev->ah_tbl_lock); 4307 4308 uresp.ah_id = ah->sc_ah.ah_info.ah_idx; 4309 err = ib_copy_to_udata(udata, &uresp, min(sizeof(uresp), udata->outlen)); 4310 if (err) 4311 irdma_destroy_ah(ibah, attr->flags); 4312 4313 return err; 4314 } 4315 4316 /** 4317 * irdma_create_ah - create address handle 4318 * @ibah: address handle 4319 * @attr: address handle attributes 4320 * @udata: NULL 4321 * 4322 * returns 0 on success, error otherwise 4323 */ 4324 static int irdma_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *attr, 4325 struct ib_udata *udata) 4326 { 4327 struct irdma_ah *ah = container_of(ibah, struct irdma_ah, ibah); 4328 struct irdma_device *iwdev = to_iwdev(ibah->pd->device); 4329 int err; 4330 4331 err = irdma_setup_ah(ibah, attr); 4332 if (err) 4333 return err; 4334 err = irdma_create_hw_ah(iwdev, ah, attr->flags & RDMA_CREATE_AH_SLEEPABLE); 4335 4336 return err; 4337 } 4338 4339 /** 4340 * irdma_query_ah - Query address handle 4341 * @ibah: pointer to address handle 4342 * @ah_attr: address handle attributes 4343 */ 4344 static int irdma_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr) 4345 { 4346 struct irdma_ah *ah = to_iwah(ibah); 4347 4348 memset(ah_attr, 0, sizeof(*ah_attr)); 4349 if (ah->av.attrs.ah_flags & IB_AH_GRH) { 4350 ah_attr->ah_flags = IB_AH_GRH; 4351 ah_attr->grh.flow_label = ah->sc_ah.ah_info.flow_label; 4352 ah_attr->grh.traffic_class = ah->sc_ah.ah_info.tc_tos; 4353 ah_attr->grh.hop_limit = ah->sc_ah.ah_info.hop_ttl; 4354 ah_attr->grh.sgid_index = ah->sgid_index; 4355 ah_attr->grh.sgid_index = ah->sgid_index; 4356 memcpy(&ah_attr->grh.dgid, &ah->dgid, 4357 sizeof(ah_attr->grh.dgid)); 4358 } 4359 4360 return 0; 4361 } 4362 4363 static enum rdma_link_layer irdma_get_link_layer(struct ib_device *ibdev, 4364 u32 port_num) 4365 { 4366 return IB_LINK_LAYER_ETHERNET; 4367 } 4368 4369 static const struct ib_device_ops irdma_roce_dev_ops = { 4370 .attach_mcast = irdma_attach_mcast, 4371 .create_ah = irdma_create_ah, 4372 .create_user_ah = irdma_create_user_ah, 4373 .destroy_ah = irdma_destroy_ah, 4374 .detach_mcast = irdma_detach_mcast, 4375 .get_link_layer = irdma_get_link_layer, 4376 .get_port_immutable = irdma_roce_port_immutable, 4377 .modify_qp = irdma_modify_qp_roce, 4378 .query_ah = irdma_query_ah, 4379 .query_pkey = irdma_query_pkey, 4380 }; 4381 4382 static const struct ib_device_ops irdma_iw_dev_ops = { 4383 .modify_qp = irdma_modify_qp, 4384 .get_port_immutable = irdma_iw_port_immutable, 4385 .query_gid = irdma_query_gid, 4386 }; 4387 4388 static const struct ib_device_ops irdma_dev_ops = { 4389 .owner = THIS_MODULE, 4390 .driver_id = RDMA_DRIVER_IRDMA, 4391 .uverbs_abi_ver = IRDMA_ABI_VER, 4392 4393 .alloc_hw_port_stats = irdma_alloc_hw_port_stats, 4394 .alloc_mr = irdma_alloc_mr, 4395 .alloc_mw = irdma_alloc_mw, 4396 .alloc_pd = irdma_alloc_pd, 4397 .alloc_ucontext = irdma_alloc_ucontext, 4398 .create_cq = irdma_create_cq, 4399 .create_qp = irdma_create_qp, 4400 .dealloc_driver = irdma_ib_dealloc_device, 4401 .dealloc_mw = irdma_dealloc_mw, 4402 .dealloc_pd = irdma_dealloc_pd, 4403 .dealloc_ucontext = irdma_dealloc_ucontext, 4404 .dereg_mr = irdma_dereg_mr, 4405 .destroy_cq = irdma_destroy_cq, 4406 .destroy_qp = irdma_destroy_qp, 4407 .disassociate_ucontext = irdma_disassociate_ucontext, 4408 .get_dev_fw_str = irdma_get_dev_fw_str, 4409 .get_dma_mr = irdma_get_dma_mr, 4410 .get_hw_stats = irdma_get_hw_stats, 4411 .map_mr_sg = irdma_map_mr_sg, 4412 .mmap = irdma_mmap, 4413 .mmap_free = irdma_mmap_free, 4414 .poll_cq = irdma_poll_cq, 4415 .post_recv = irdma_post_recv, 4416 .post_send = irdma_post_send, 4417 .query_device = irdma_query_device, 4418 .query_port = irdma_query_port, 4419 .query_qp = irdma_query_qp, 4420 .reg_user_mr = irdma_reg_user_mr, 4421 .req_notify_cq = irdma_req_notify_cq, 4422 .resize_cq = irdma_resize_cq, 4423 INIT_RDMA_OBJ_SIZE(ib_pd, irdma_pd, ibpd), 4424 INIT_RDMA_OBJ_SIZE(ib_ucontext, irdma_ucontext, ibucontext), 4425 INIT_RDMA_OBJ_SIZE(ib_ah, irdma_ah, ibah), 4426 INIT_RDMA_OBJ_SIZE(ib_cq, irdma_cq, ibcq), 4427 INIT_RDMA_OBJ_SIZE(ib_mw, irdma_mr, ibmw), 4428 INIT_RDMA_OBJ_SIZE(ib_qp, irdma_qp, ibqp), 4429 }; 4430 4431 /** 4432 * irdma_init_roce_device - initialization of roce rdma device 4433 * @iwdev: irdma device 4434 */ 4435 static void irdma_init_roce_device(struct irdma_device *iwdev) 4436 { 4437 iwdev->ibdev.node_type = RDMA_NODE_IB_CA; 4438 addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid, 4439 iwdev->netdev->dev_addr); 4440 ib_set_device_ops(&iwdev->ibdev, &irdma_roce_dev_ops); 4441 } 4442 4443 /** 4444 * irdma_init_iw_device - initialization of iwarp rdma device 4445 * @iwdev: irdma device 4446 */ 4447 static int irdma_init_iw_device(struct irdma_device *iwdev) 4448 { 4449 struct net_device *netdev = iwdev->netdev; 4450 4451 iwdev->ibdev.node_type = RDMA_NODE_RNIC; 4452 addrconf_addr_eui48((u8 *)&iwdev->ibdev.node_guid, 4453 netdev->dev_addr); 4454 iwdev->ibdev.ops.iw_add_ref = irdma_qp_add_ref; 4455 iwdev->ibdev.ops.iw_rem_ref = irdma_qp_rem_ref; 4456 iwdev->ibdev.ops.iw_get_qp = irdma_get_qp; 4457 iwdev->ibdev.ops.iw_connect = irdma_connect; 4458 iwdev->ibdev.ops.iw_accept = irdma_accept; 4459 iwdev->ibdev.ops.iw_reject = irdma_reject; 4460 iwdev->ibdev.ops.iw_create_listen = irdma_create_listen; 4461 iwdev->ibdev.ops.iw_destroy_listen = irdma_destroy_listen; 4462 memcpy(iwdev->ibdev.iw_ifname, netdev->name, 4463 sizeof(iwdev->ibdev.iw_ifname)); 4464 ib_set_device_ops(&iwdev->ibdev, &irdma_iw_dev_ops); 4465 4466 return 0; 4467 } 4468 4469 /** 4470 * irdma_init_rdma_device - initialization of rdma device 4471 * @iwdev: irdma device 4472 */ 4473 static int irdma_init_rdma_device(struct irdma_device *iwdev) 4474 { 4475 struct pci_dev *pcidev = iwdev->rf->pcidev; 4476 int ret; 4477 4478 if (iwdev->roce_mode) { 4479 irdma_init_roce_device(iwdev); 4480 } else { 4481 ret = irdma_init_iw_device(iwdev); 4482 if (ret) 4483 return ret; 4484 } 4485 iwdev->ibdev.phys_port_cnt = 1; 4486 iwdev->ibdev.num_comp_vectors = iwdev->rf->ceqs_count; 4487 iwdev->ibdev.dev.parent = &pcidev->dev; 4488 ib_set_device_ops(&iwdev->ibdev, &irdma_dev_ops); 4489 4490 return 0; 4491 } 4492 4493 /** 4494 * irdma_port_ibevent - indicate port event 4495 * @iwdev: irdma device 4496 */ 4497 void irdma_port_ibevent(struct irdma_device *iwdev) 4498 { 4499 struct ib_event event; 4500 4501 event.device = &iwdev->ibdev; 4502 event.element.port_num = 1; 4503 event.event = 4504 iwdev->iw_status ? IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; 4505 ib_dispatch_event(&event); 4506 } 4507 4508 /** 4509 * irdma_ib_unregister_device - unregister rdma device from IB 4510 * core 4511 * @iwdev: irdma device 4512 */ 4513 void irdma_ib_unregister_device(struct irdma_device *iwdev) 4514 { 4515 iwdev->iw_status = 0; 4516 irdma_port_ibevent(iwdev); 4517 ib_unregister_device(&iwdev->ibdev); 4518 } 4519 4520 /** 4521 * irdma_ib_register_device - register irdma device to IB core 4522 * @iwdev: irdma device 4523 */ 4524 int irdma_ib_register_device(struct irdma_device *iwdev) 4525 { 4526 int ret; 4527 4528 ret = irdma_init_rdma_device(iwdev); 4529 if (ret) 4530 return ret; 4531 4532 ret = ib_device_set_netdev(&iwdev->ibdev, iwdev->netdev, 1); 4533 if (ret) 4534 goto error; 4535 dma_set_max_seg_size(iwdev->rf->hw.device, UINT_MAX); 4536 ret = ib_register_device(&iwdev->ibdev, "irdma%d", iwdev->rf->hw.device); 4537 if (ret) 4538 goto error; 4539 4540 iwdev->iw_status = 1; 4541 irdma_port_ibevent(iwdev); 4542 4543 return 0; 4544 4545 error: 4546 if (ret) 4547 ibdev_dbg(&iwdev->ibdev, "VERBS: Register RDMA device fail\n"); 4548 4549 return ret; 4550 } 4551 4552 /** 4553 * irdma_ib_dealloc_device 4554 * @ibdev: ib device 4555 * 4556 * callback from ibdev dealloc_driver to deallocate resources 4557 * unber irdma device 4558 */ 4559 void irdma_ib_dealloc_device(struct ib_device *ibdev) 4560 { 4561 struct irdma_device *iwdev = to_iwdev(ibdev); 4562 4563 irdma_rt_deinit_hw(iwdev); 4564 irdma_ctrl_deinit_hw(iwdev->rf); 4565 kfree(iwdev->rf); 4566 } 4567