1 /* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 4 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. 5 * Copyright (c) 2005 Mellanox Technologies. All rights reserved. 6 * Copyright (c) 2004 Voltaire, Inc. All rights reserved. 7 * 8 * This software is available to you under a choice of one of two 9 * licenses. You may choose to be licensed under the terms of the GNU 10 * General Public License (GPL) Version 2, available from the file 11 * COPYING in the main directory of this source tree, or the 12 * OpenIB.org BSD license below: 13 * 14 * Redistribution and use in source and binary forms, with or 15 * without modification, are permitted provided that the following 16 * conditions are met: 17 * 18 * - Redistributions of source code must retain the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer. 21 * 22 * - Redistributions in binary form must reproduce the above 23 * copyright notice, this list of conditions and the following 24 * disclaimer in the documentation and/or other materials 25 * provided with the distribution. 26 * 27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 34 * SOFTWARE. 35 */ 36 37 #include <rdma/ib_smi.h> 38 #include <rdma/ib_umem.h> 39 #include <rdma/ib_user_verbs.h> 40 #include <rdma/uverbs_ioctl.h> 41 42 #include <linux/sched.h> 43 #include <linux/slab.h> 44 #include <linux/stat.h> 45 #include <linux/mm.h> 46 #include <linux/export.h> 47 48 #include "mthca_dev.h" 49 #include "mthca_cmd.h" 50 #include <rdma/mthca-abi.h> 51 #include "mthca_memfree.h" 52 53 static void init_query_mad(struct ib_smp *mad) 54 { 55 mad->base_version = 1; 56 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 57 mad->class_version = 1; 58 mad->method = IB_MGMT_METHOD_GET; 59 } 60 61 static int mthca_query_device(struct ib_device *ibdev, struct ib_device_attr *props, 62 struct ib_udata *uhw) 63 { 64 struct ib_smp *in_mad = NULL; 65 struct ib_smp *out_mad = NULL; 66 int err = -ENOMEM; 67 struct mthca_dev *mdev = to_mdev(ibdev); 68 69 if (uhw->inlen || uhw->outlen) 70 return -EINVAL; 71 72 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 73 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 74 if (!in_mad || !out_mad) 75 goto out; 76 77 memset(props, 0, sizeof *props); 78 79 props->fw_ver = mdev->fw_ver; 80 81 init_query_mad(in_mad); 82 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 83 84 err = mthca_MAD_IFC(mdev, 1, 1, 85 1, NULL, NULL, in_mad, out_mad); 86 if (err) 87 goto out; 88 89 props->device_cap_flags = mdev->device_cap_flags; 90 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 91 0xffffff; 92 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); 93 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); 94 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 95 96 props->max_mr_size = ~0ull; 97 props->page_size_cap = mdev->limits.page_size_cap; 98 props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; 99 props->max_qp_wr = mdev->limits.max_wqes; 100 props->max_send_sge = mdev->limits.max_sg; 101 props->max_recv_sge = mdev->limits.max_sg; 102 props->max_sge_rd = mdev->limits.max_sg; 103 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; 104 props->max_cqe = mdev->limits.max_cqes; 105 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; 106 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; 107 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; 108 props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; 109 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 110 props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; 111 props->max_srq_wr = mdev->limits.max_srq_wqes; 112 props->max_srq_sge = mdev->limits.max_srq_sge; 113 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; 114 props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? 115 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 116 props->max_pkeys = mdev->limits.pkey_table_len; 117 props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; 118 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; 119 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 120 props->max_mcast_grp; 121 /* 122 * If Sinai memory key optimization is being used, then only 123 * the 8-bit key portion will change. For other HCAs, the 124 * unused index bits will also be used for FMR remapping. 125 */ 126 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 127 props->max_map_per_fmr = 255; 128 else 129 props->max_map_per_fmr = 130 (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1; 131 132 err = 0; 133 out: 134 kfree(in_mad); 135 kfree(out_mad); 136 return err; 137 } 138 139 static int mthca_query_port(struct ib_device *ibdev, 140 u8 port, struct ib_port_attr *props) 141 { 142 struct ib_smp *in_mad = NULL; 143 struct ib_smp *out_mad = NULL; 144 int err = -ENOMEM; 145 146 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 147 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 148 if (!in_mad || !out_mad) 149 goto out; 150 151 /* props being zeroed by the caller, avoid zeroing it here */ 152 153 init_query_mad(in_mad); 154 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 155 in_mad->attr_mod = cpu_to_be32(port); 156 157 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 158 port, NULL, NULL, in_mad, out_mad); 159 if (err) 160 goto out; 161 162 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 163 props->lmc = out_mad->data[34] & 0x7; 164 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 165 props->sm_sl = out_mad->data[36] & 0xf; 166 props->state = out_mad->data[32] & 0xf; 167 props->phys_state = out_mad->data[33] >> 4; 168 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 169 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; 170 props->max_msg_sz = 0x80000000; 171 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; 172 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 173 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 174 props->active_width = out_mad->data[31] & 0xf; 175 props->active_speed = out_mad->data[35] >> 4; 176 props->max_mtu = out_mad->data[41] & 0xf; 177 props->active_mtu = out_mad->data[36] >> 4; 178 props->subnet_timeout = out_mad->data[51] & 0x1f; 179 props->max_vl_num = out_mad->data[37] >> 4; 180 props->init_type_reply = out_mad->data[41] >> 4; 181 182 out: 183 kfree(in_mad); 184 kfree(out_mad); 185 return err; 186 } 187 188 static int mthca_modify_device(struct ib_device *ibdev, 189 int mask, 190 struct ib_device_modify *props) 191 { 192 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 193 return -EOPNOTSUPP; 194 195 if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 196 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 197 return -ERESTARTSYS; 198 memcpy(ibdev->node_desc, props->node_desc, 199 IB_DEVICE_NODE_DESC_MAX); 200 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 201 } 202 203 return 0; 204 } 205 206 static int mthca_modify_port(struct ib_device *ibdev, 207 u8 port, int port_modify_mask, 208 struct ib_port_modify *props) 209 { 210 struct mthca_set_ib_param set_ib; 211 struct ib_port_attr attr; 212 int err; 213 214 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 215 return -ERESTARTSYS; 216 217 err = ib_query_port(ibdev, port, &attr); 218 if (err) 219 goto out; 220 221 set_ib.set_si_guid = 0; 222 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); 223 224 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 225 ~props->clr_port_cap_mask; 226 227 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port); 228 if (err) 229 goto out; 230 out: 231 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 232 return err; 233 } 234 235 static int mthca_query_pkey(struct ib_device *ibdev, 236 u8 port, u16 index, u16 *pkey) 237 { 238 struct ib_smp *in_mad = NULL; 239 struct ib_smp *out_mad = NULL; 240 int err = -ENOMEM; 241 242 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 243 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 244 if (!in_mad || !out_mad) 245 goto out; 246 247 init_query_mad(in_mad); 248 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 249 in_mad->attr_mod = cpu_to_be32(index / 32); 250 251 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 252 port, NULL, NULL, in_mad, out_mad); 253 if (err) 254 goto out; 255 256 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 257 258 out: 259 kfree(in_mad); 260 kfree(out_mad); 261 return err; 262 } 263 264 static int mthca_query_gid(struct ib_device *ibdev, u8 port, 265 int index, union ib_gid *gid) 266 { 267 struct ib_smp *in_mad = NULL; 268 struct ib_smp *out_mad = NULL; 269 int err = -ENOMEM; 270 271 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 272 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 273 if (!in_mad || !out_mad) 274 goto out; 275 276 init_query_mad(in_mad); 277 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 278 in_mad->attr_mod = cpu_to_be32(port); 279 280 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 281 port, NULL, NULL, in_mad, out_mad); 282 if (err) 283 goto out; 284 285 memcpy(gid->raw, out_mad->data + 8, 8); 286 287 init_query_mad(in_mad); 288 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 289 in_mad->attr_mod = cpu_to_be32(index / 8); 290 291 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 292 port, NULL, NULL, in_mad, out_mad); 293 if (err) 294 goto out; 295 296 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 297 298 out: 299 kfree(in_mad); 300 kfree(out_mad); 301 return err; 302 } 303 304 static int mthca_alloc_ucontext(struct ib_ucontext *uctx, 305 struct ib_udata *udata) 306 { 307 struct ib_device *ibdev = uctx->device; 308 struct mthca_alloc_ucontext_resp uresp = {}; 309 struct mthca_ucontext *context = to_mucontext(uctx); 310 int err; 311 312 if (!(to_mdev(ibdev)->active)) 313 return -EAGAIN; 314 315 uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; 316 if (mthca_is_memfree(to_mdev(ibdev))) 317 uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; 318 else 319 uresp.uarc_size = 0; 320 321 err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); 322 if (err) 323 return err; 324 325 context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); 326 if (IS_ERR(context->db_tab)) { 327 err = PTR_ERR(context->db_tab); 328 mthca_uar_free(to_mdev(ibdev), &context->uar); 329 return err; 330 } 331 332 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) { 333 mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); 334 mthca_uar_free(to_mdev(ibdev), &context->uar); 335 return -EFAULT; 336 } 337 338 context->reg_mr_warned = 0; 339 340 return 0; 341 } 342 343 static void mthca_dealloc_ucontext(struct ib_ucontext *context) 344 { 345 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, 346 to_mucontext(context)->db_tab); 347 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); 348 } 349 350 static int mthca_mmap_uar(struct ib_ucontext *context, 351 struct vm_area_struct *vma) 352 { 353 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 354 return -EINVAL; 355 356 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 357 358 if (io_remap_pfn_range(vma, vma->vm_start, 359 to_mucontext(context)->uar.pfn, 360 PAGE_SIZE, vma->vm_page_prot)) 361 return -EAGAIN; 362 363 return 0; 364 } 365 366 static int mthca_alloc_pd(struct ib_pd *ibpd, struct ib_ucontext *context, 367 struct ib_udata *udata) 368 { 369 struct ib_device *ibdev = ibpd->device; 370 struct mthca_pd *pd = to_mpd(ibpd); 371 int err; 372 373 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); 374 if (err) 375 return err; 376 377 if (context) { 378 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { 379 mthca_pd_free(to_mdev(ibdev), pd); 380 return -EFAULT; 381 } 382 } 383 384 return 0; 385 } 386 387 static void mthca_dealloc_pd(struct ib_pd *pd) 388 { 389 mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); 390 } 391 392 static struct ib_ah *mthca_ah_create(struct ib_pd *pd, 393 struct rdma_ah_attr *ah_attr, 394 u32 flags, 395 struct ib_udata *udata) 396 397 { 398 int err; 399 struct mthca_ah *ah; 400 401 ah = kmalloc(sizeof *ah, GFP_ATOMIC); 402 if (!ah) 403 return ERR_PTR(-ENOMEM); 404 405 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); 406 if (err) { 407 kfree(ah); 408 return ERR_PTR(err); 409 } 410 411 return &ah->ibah; 412 } 413 414 static int mthca_ah_destroy(struct ib_ah *ah, u32 flags) 415 { 416 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); 417 kfree(ah); 418 419 return 0; 420 } 421 422 static struct ib_srq *mthca_create_srq(struct ib_pd *pd, 423 struct ib_srq_init_attr *init_attr, 424 struct ib_udata *udata) 425 { 426 struct mthca_create_srq ucmd; 427 struct mthca_ucontext *context = rdma_udata_to_drv_context( 428 udata, struct mthca_ucontext, ibucontext); 429 struct mthca_srq *srq; 430 int err; 431 432 if (init_attr->srq_type != IB_SRQT_BASIC) 433 return ERR_PTR(-EOPNOTSUPP); 434 435 srq = kmalloc(sizeof *srq, GFP_KERNEL); 436 if (!srq) 437 return ERR_PTR(-ENOMEM); 438 439 if (udata) { 440 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 441 err = -EFAULT; 442 goto err_free; 443 } 444 445 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 446 context->db_tab, ucmd.db_index, 447 ucmd.db_page); 448 449 if (err) 450 goto err_free; 451 452 srq->mr.ibmr.lkey = ucmd.lkey; 453 srq->db_index = ucmd.db_index; 454 } 455 456 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), 457 &init_attr->attr, srq, udata); 458 459 if (err && udata) 460 mthca_unmap_user_db(to_mdev(pd->device), &context->uar, 461 context->db_tab, ucmd.db_index); 462 463 if (err) 464 goto err_free; 465 466 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { 467 mthca_free_srq(to_mdev(pd->device), srq); 468 err = -EFAULT; 469 goto err_free; 470 } 471 472 return &srq->ibsrq; 473 474 err_free: 475 kfree(srq); 476 477 return ERR_PTR(err); 478 } 479 480 static int mthca_destroy_srq(struct ib_srq *srq) 481 { 482 struct mthca_ucontext *context; 483 484 if (srq->uobject) { 485 context = to_mucontext(srq->uobject->context); 486 487 mthca_unmap_user_db(to_mdev(srq->device), &context->uar, 488 context->db_tab, to_msrq(srq)->db_index); 489 } 490 491 mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); 492 kfree(srq); 493 494 return 0; 495 } 496 497 static struct ib_qp *mthca_create_qp(struct ib_pd *pd, 498 struct ib_qp_init_attr *init_attr, 499 struct ib_udata *udata) 500 { 501 struct mthca_ucontext *context = rdma_udata_to_drv_context( 502 udata, struct mthca_ucontext, ibucontext); 503 struct mthca_create_qp ucmd; 504 struct mthca_qp *qp; 505 int err; 506 507 if (init_attr->create_flags) 508 return ERR_PTR(-EINVAL); 509 510 switch (init_attr->qp_type) { 511 case IB_QPT_RC: 512 case IB_QPT_UC: 513 case IB_QPT_UD: 514 { 515 qp = kzalloc(sizeof(*qp), GFP_KERNEL); 516 if (!qp) 517 return ERR_PTR(-ENOMEM); 518 519 if (udata) { 520 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 521 kfree(qp); 522 return ERR_PTR(-EFAULT); 523 } 524 525 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 526 context->db_tab, 527 ucmd.sq_db_index, ucmd.sq_db_page); 528 if (err) { 529 kfree(qp); 530 return ERR_PTR(err); 531 } 532 533 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 534 context->db_tab, 535 ucmd.rq_db_index, ucmd.rq_db_page); 536 if (err) { 537 mthca_unmap_user_db(to_mdev(pd->device), 538 &context->uar, 539 context->db_tab, 540 ucmd.sq_db_index); 541 kfree(qp); 542 return ERR_PTR(err); 543 } 544 545 qp->mr.ibmr.lkey = ucmd.lkey; 546 qp->sq.db_index = ucmd.sq_db_index; 547 qp->rq.db_index = ucmd.rq_db_index; 548 } 549 550 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), 551 to_mcq(init_attr->send_cq), 552 to_mcq(init_attr->recv_cq), 553 init_attr->qp_type, init_attr->sq_sig_type, 554 &init_attr->cap, qp, udata); 555 556 if (err && udata) { 557 mthca_unmap_user_db(to_mdev(pd->device), 558 &context->uar, 559 context->db_tab, 560 ucmd.sq_db_index); 561 mthca_unmap_user_db(to_mdev(pd->device), 562 &context->uar, 563 context->db_tab, 564 ucmd.rq_db_index); 565 } 566 567 qp->ibqp.qp_num = qp->qpn; 568 break; 569 } 570 case IB_QPT_SMI: 571 case IB_QPT_GSI: 572 { 573 /* Don't allow userspace to create special QPs */ 574 if (udata) 575 return ERR_PTR(-EINVAL); 576 577 qp = kzalloc(sizeof(struct mthca_sqp), GFP_KERNEL); 578 if (!qp) 579 return ERR_PTR(-ENOMEM); 580 581 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; 582 583 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), 584 to_mcq(init_attr->send_cq), 585 to_mcq(init_attr->recv_cq), 586 init_attr->sq_sig_type, &init_attr->cap, 587 qp->ibqp.qp_num, init_attr->port_num, 588 to_msqp(qp), udata); 589 break; 590 } 591 default: 592 /* Don't support raw QPs */ 593 return ERR_PTR(-ENOSYS); 594 } 595 596 if (err) { 597 kfree(qp); 598 return ERR_PTR(err); 599 } 600 601 init_attr->cap.max_send_wr = qp->sq.max; 602 init_attr->cap.max_recv_wr = qp->rq.max; 603 init_attr->cap.max_send_sge = qp->sq.max_gs; 604 init_attr->cap.max_recv_sge = qp->rq.max_gs; 605 init_attr->cap.max_inline_data = qp->max_inline_data; 606 607 return &qp->ibqp; 608 } 609 610 static int mthca_destroy_qp(struct ib_qp *qp) 611 { 612 if (qp->uobject) { 613 mthca_unmap_user_db(to_mdev(qp->device), 614 &to_mucontext(qp->uobject->context)->uar, 615 to_mucontext(qp->uobject->context)->db_tab, 616 to_mqp(qp)->sq.db_index); 617 mthca_unmap_user_db(to_mdev(qp->device), 618 &to_mucontext(qp->uobject->context)->uar, 619 to_mucontext(qp->uobject->context)->db_tab, 620 to_mqp(qp)->rq.db_index); 621 } 622 mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); 623 kfree(qp); 624 return 0; 625 } 626 627 static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, 628 const struct ib_cq_init_attr *attr, 629 struct ib_ucontext *context, 630 struct ib_udata *udata) 631 { 632 int entries = attr->cqe; 633 struct mthca_create_cq ucmd; 634 struct mthca_cq *cq; 635 int nent; 636 int err; 637 638 if (attr->flags) 639 return ERR_PTR(-EINVAL); 640 641 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) 642 return ERR_PTR(-EINVAL); 643 644 if (context) { 645 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 646 return ERR_PTR(-EFAULT); 647 648 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 649 to_mucontext(context)->db_tab, 650 ucmd.set_db_index, ucmd.set_db_page); 651 if (err) 652 return ERR_PTR(err); 653 654 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 655 to_mucontext(context)->db_tab, 656 ucmd.arm_db_index, ucmd.arm_db_page); 657 if (err) 658 goto err_unmap_set; 659 } 660 661 cq = kzalloc(sizeof(*cq), GFP_KERNEL); 662 if (!cq) { 663 err = -ENOMEM; 664 goto err_unmap_arm; 665 } 666 667 if (context) { 668 cq->buf.mr.ibmr.lkey = ucmd.lkey; 669 cq->set_ci_db_index = ucmd.set_db_index; 670 cq->arm_db_index = ucmd.arm_db_index; 671 } 672 673 for (nent = 1; nent <= entries; nent <<= 1) 674 ; /* nothing */ 675 676 err = mthca_init_cq(to_mdev(ibdev), nent, 677 context ? to_mucontext(context) : NULL, 678 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, 679 cq); 680 if (err) 681 goto err_free; 682 683 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { 684 mthca_free_cq(to_mdev(ibdev), cq); 685 err = -EFAULT; 686 goto err_free; 687 } 688 689 cq->resize_buf = NULL; 690 691 return &cq->ibcq; 692 693 err_free: 694 kfree(cq); 695 696 err_unmap_arm: 697 if (context) 698 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 699 to_mucontext(context)->db_tab, ucmd.arm_db_index); 700 701 err_unmap_set: 702 if (context) 703 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 704 to_mucontext(context)->db_tab, ucmd.set_db_index); 705 706 return ERR_PTR(err); 707 } 708 709 static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, 710 int entries) 711 { 712 int ret; 713 714 spin_lock_irq(&cq->lock); 715 if (cq->resize_buf) { 716 ret = -EBUSY; 717 goto unlock; 718 } 719 720 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); 721 if (!cq->resize_buf) { 722 ret = -ENOMEM; 723 goto unlock; 724 } 725 726 cq->resize_buf->state = CQ_RESIZE_ALLOC; 727 728 ret = 0; 729 730 unlock: 731 spin_unlock_irq(&cq->lock); 732 733 if (ret) 734 return ret; 735 736 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); 737 if (ret) { 738 spin_lock_irq(&cq->lock); 739 kfree(cq->resize_buf); 740 cq->resize_buf = NULL; 741 spin_unlock_irq(&cq->lock); 742 return ret; 743 } 744 745 cq->resize_buf->cqe = entries - 1; 746 747 spin_lock_irq(&cq->lock); 748 cq->resize_buf->state = CQ_RESIZE_READY; 749 spin_unlock_irq(&cq->lock); 750 751 return 0; 752 } 753 754 static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) 755 { 756 struct mthca_dev *dev = to_mdev(ibcq->device); 757 struct mthca_cq *cq = to_mcq(ibcq); 758 struct mthca_resize_cq ucmd; 759 u32 lkey; 760 int ret; 761 762 if (entries < 1 || entries > dev->limits.max_cqes) 763 return -EINVAL; 764 765 mutex_lock(&cq->mutex); 766 767 entries = roundup_pow_of_two(entries + 1); 768 if (entries == ibcq->cqe + 1) { 769 ret = 0; 770 goto out; 771 } 772 773 if (cq->is_kernel) { 774 ret = mthca_alloc_resize_buf(dev, cq, entries); 775 if (ret) 776 goto out; 777 lkey = cq->resize_buf->buf.mr.ibmr.lkey; 778 } else { 779 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 780 ret = -EFAULT; 781 goto out; 782 } 783 lkey = ucmd.lkey; 784 } 785 786 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries)); 787 788 if (ret) { 789 if (cq->resize_buf) { 790 mthca_free_cq_buf(dev, &cq->resize_buf->buf, 791 cq->resize_buf->cqe); 792 kfree(cq->resize_buf); 793 spin_lock_irq(&cq->lock); 794 cq->resize_buf = NULL; 795 spin_unlock_irq(&cq->lock); 796 } 797 goto out; 798 } 799 800 if (cq->is_kernel) { 801 struct mthca_cq_buf tbuf; 802 int tcqe; 803 804 spin_lock_irq(&cq->lock); 805 if (cq->resize_buf->state == CQ_RESIZE_READY) { 806 mthca_cq_resize_copy_cqes(cq); 807 tbuf = cq->buf; 808 tcqe = cq->ibcq.cqe; 809 cq->buf = cq->resize_buf->buf; 810 cq->ibcq.cqe = cq->resize_buf->cqe; 811 } else { 812 tbuf = cq->resize_buf->buf; 813 tcqe = cq->resize_buf->cqe; 814 } 815 816 kfree(cq->resize_buf); 817 cq->resize_buf = NULL; 818 spin_unlock_irq(&cq->lock); 819 820 mthca_free_cq_buf(dev, &tbuf, tcqe); 821 } else 822 ibcq->cqe = entries - 1; 823 824 out: 825 mutex_unlock(&cq->mutex); 826 827 return ret; 828 } 829 830 static int mthca_destroy_cq(struct ib_cq *cq) 831 { 832 if (cq->uobject) { 833 mthca_unmap_user_db(to_mdev(cq->device), 834 &to_mucontext(cq->uobject->context)->uar, 835 to_mucontext(cq->uobject->context)->db_tab, 836 to_mcq(cq)->arm_db_index); 837 mthca_unmap_user_db(to_mdev(cq->device), 838 &to_mucontext(cq->uobject->context)->uar, 839 to_mucontext(cq->uobject->context)->db_tab, 840 to_mcq(cq)->set_ci_db_index); 841 } 842 mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); 843 kfree(cq); 844 845 return 0; 846 } 847 848 static inline u32 convert_access(int acc) 849 { 850 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | 851 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | 852 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | 853 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | 854 MTHCA_MPT_FLAG_LOCAL_READ; 855 } 856 857 static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) 858 { 859 struct mthca_mr *mr; 860 int err; 861 862 mr = kmalloc(sizeof *mr, GFP_KERNEL); 863 if (!mr) 864 return ERR_PTR(-ENOMEM); 865 866 err = mthca_mr_alloc_notrans(to_mdev(pd->device), 867 to_mpd(pd)->pd_num, 868 convert_access(acc), mr); 869 870 if (err) { 871 kfree(mr); 872 return ERR_PTR(err); 873 } 874 875 mr->umem = NULL; 876 877 return &mr->ibmr; 878 } 879 880 static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 881 u64 virt, int acc, struct ib_udata *udata) 882 { 883 struct mthca_dev *dev = to_mdev(pd->device); 884 struct sg_dma_page_iter sg_iter; 885 struct mthca_ucontext *context = rdma_udata_to_drv_context( 886 udata, struct mthca_ucontext, ibucontext); 887 struct mthca_mr *mr; 888 struct mthca_reg_mr ucmd; 889 u64 *pages; 890 int n, i; 891 int err = 0; 892 int write_mtt_size; 893 894 if (udata->inlen < sizeof ucmd) { 895 if (!context->reg_mr_warned) { 896 mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n", 897 current->comm); 898 mthca_warn(dev, " Update libmthca to fix this.\n"); 899 } 900 ++context->reg_mr_warned; 901 ucmd.mr_attrs = 0; 902 } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 903 return ERR_PTR(-EFAULT); 904 905 mr = kmalloc(sizeof *mr, GFP_KERNEL); 906 if (!mr) 907 return ERR_PTR(-ENOMEM); 908 909 mr->umem = ib_umem_get(udata, start, length, acc, 910 ucmd.mr_attrs & MTHCA_MR_DMASYNC); 911 912 if (IS_ERR(mr->umem)) { 913 err = PTR_ERR(mr->umem); 914 goto err; 915 } 916 917 n = mr->umem->nmap; 918 919 mr->mtt = mthca_alloc_mtt(dev, n); 920 if (IS_ERR(mr->mtt)) { 921 err = PTR_ERR(mr->mtt); 922 goto err_umem; 923 } 924 925 pages = (u64 *) __get_free_page(GFP_KERNEL); 926 if (!pages) { 927 err = -ENOMEM; 928 goto err_mtt; 929 } 930 931 i = n = 0; 932 933 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); 934 935 for_each_sg_dma_page(mr->umem->sg_head.sgl, &sg_iter, mr->umem->nmap, 0) { 936 pages[i++] = sg_page_iter_dma_address(&sg_iter); 937 938 /* 939 * Be friendly to write_mtt and pass it chunks 940 * of appropriate size. 941 */ 942 if (i == write_mtt_size) { 943 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 944 if (err) 945 goto mtt_done; 946 n += i; 947 i = 0; 948 } 949 } 950 951 if (i) 952 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 953 mtt_done: 954 free_page((unsigned long) pages); 955 if (err) 956 goto err_mtt; 957 958 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, PAGE_SHIFT, virt, length, 959 convert_access(acc), mr); 960 961 if (err) 962 goto err_mtt; 963 964 return &mr->ibmr; 965 966 err_mtt: 967 mthca_free_mtt(dev, mr->mtt); 968 969 err_umem: 970 ib_umem_release(mr->umem); 971 972 err: 973 kfree(mr); 974 return ERR_PTR(err); 975 } 976 977 static int mthca_dereg_mr(struct ib_mr *mr) 978 { 979 struct mthca_mr *mmr = to_mmr(mr); 980 981 mthca_free_mr(to_mdev(mr->device), mmr); 982 if (mmr->umem) 983 ib_umem_release(mmr->umem); 984 kfree(mmr); 985 986 return 0; 987 } 988 989 static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, 990 struct ib_fmr_attr *fmr_attr) 991 { 992 struct mthca_fmr *fmr; 993 int err; 994 995 fmr = kmalloc(sizeof *fmr, GFP_KERNEL); 996 if (!fmr) 997 return ERR_PTR(-ENOMEM); 998 999 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); 1000 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, 1001 convert_access(mr_access_flags), fmr); 1002 1003 if (err) { 1004 kfree(fmr); 1005 return ERR_PTR(err); 1006 } 1007 1008 return &fmr->ibmr; 1009 } 1010 1011 static int mthca_dealloc_fmr(struct ib_fmr *fmr) 1012 { 1013 struct mthca_fmr *mfmr = to_mfmr(fmr); 1014 int err; 1015 1016 err = mthca_free_fmr(to_mdev(fmr->device), mfmr); 1017 if (err) 1018 return err; 1019 1020 kfree(mfmr); 1021 return 0; 1022 } 1023 1024 static int mthca_unmap_fmr(struct list_head *fmr_list) 1025 { 1026 struct ib_fmr *fmr; 1027 int err; 1028 struct mthca_dev *mdev = NULL; 1029 1030 list_for_each_entry(fmr, fmr_list, list) { 1031 if (mdev && to_mdev(fmr->device) != mdev) 1032 return -EINVAL; 1033 mdev = to_mdev(fmr->device); 1034 } 1035 1036 if (!mdev) 1037 return 0; 1038 1039 if (mthca_is_memfree(mdev)) { 1040 list_for_each_entry(fmr, fmr_list, list) 1041 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); 1042 1043 wmb(); 1044 } else 1045 list_for_each_entry(fmr, fmr_list, list) 1046 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); 1047 1048 err = mthca_SYNC_TPT(mdev); 1049 return err; 1050 } 1051 1052 static ssize_t hw_rev_show(struct device *device, 1053 struct device_attribute *attr, char *buf) 1054 { 1055 struct mthca_dev *dev = 1056 rdma_device_to_drv_device(device, struct mthca_dev, ib_dev); 1057 1058 return sprintf(buf, "%x\n", dev->rev_id); 1059 } 1060 static DEVICE_ATTR_RO(hw_rev); 1061 1062 static ssize_t hca_type_show(struct device *device, 1063 struct device_attribute *attr, char *buf) 1064 { 1065 struct mthca_dev *dev = 1066 rdma_device_to_drv_device(device, struct mthca_dev, ib_dev); 1067 1068 switch (dev->pdev->device) { 1069 case PCI_DEVICE_ID_MELLANOX_TAVOR: 1070 return sprintf(buf, "MT23108\n"); 1071 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: 1072 return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); 1073 case PCI_DEVICE_ID_MELLANOX_ARBEL: 1074 return sprintf(buf, "MT25208\n"); 1075 case PCI_DEVICE_ID_MELLANOX_SINAI: 1076 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: 1077 return sprintf(buf, "MT25204\n"); 1078 default: 1079 return sprintf(buf, "unknown\n"); 1080 } 1081 } 1082 static DEVICE_ATTR_RO(hca_type); 1083 1084 static ssize_t board_id_show(struct device *device, 1085 struct device_attribute *attr, char *buf) 1086 { 1087 struct mthca_dev *dev = 1088 rdma_device_to_drv_device(device, struct mthca_dev, ib_dev); 1089 1090 return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); 1091 } 1092 static DEVICE_ATTR_RO(board_id); 1093 1094 static struct attribute *mthca_dev_attributes[] = { 1095 &dev_attr_hw_rev.attr, 1096 &dev_attr_hca_type.attr, 1097 &dev_attr_board_id.attr, 1098 NULL 1099 }; 1100 1101 static const struct attribute_group mthca_attr_group = { 1102 .attrs = mthca_dev_attributes, 1103 }; 1104 1105 static int mthca_init_node_data(struct mthca_dev *dev) 1106 { 1107 struct ib_smp *in_mad = NULL; 1108 struct ib_smp *out_mad = NULL; 1109 int err = -ENOMEM; 1110 1111 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1112 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1113 if (!in_mad || !out_mad) 1114 goto out; 1115 1116 init_query_mad(in_mad); 1117 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1118 1119 err = mthca_MAD_IFC(dev, 1, 1, 1120 1, NULL, NULL, in_mad, out_mad); 1121 if (err) 1122 goto out; 1123 1124 memcpy(dev->ib_dev.node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); 1125 1126 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1127 1128 err = mthca_MAD_IFC(dev, 1, 1, 1129 1, NULL, NULL, in_mad, out_mad); 1130 if (err) 1131 goto out; 1132 1133 if (mthca_is_memfree(dev)) 1134 dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 1135 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1136 1137 out: 1138 kfree(in_mad); 1139 kfree(out_mad); 1140 return err; 1141 } 1142 1143 static int mthca_port_immutable(struct ib_device *ibdev, u8 port_num, 1144 struct ib_port_immutable *immutable) 1145 { 1146 struct ib_port_attr attr; 1147 int err; 1148 1149 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB; 1150 1151 err = ib_query_port(ibdev, port_num, &attr); 1152 if (err) 1153 return err; 1154 1155 immutable->pkey_tbl_len = attr.pkey_tbl_len; 1156 immutable->gid_tbl_len = attr.gid_tbl_len; 1157 immutable->max_mad_size = IB_MGMT_MAD_SIZE; 1158 1159 return 0; 1160 } 1161 1162 static void get_dev_fw_str(struct ib_device *device, char *str) 1163 { 1164 struct mthca_dev *dev = 1165 container_of(device, struct mthca_dev, ib_dev); 1166 snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d", 1167 (int) (dev->fw_ver >> 32), 1168 (int) (dev->fw_ver >> 16) & 0xffff, 1169 (int) dev->fw_ver & 0xffff); 1170 } 1171 1172 static const struct ib_device_ops mthca_dev_ops = { 1173 .alloc_pd = mthca_alloc_pd, 1174 .alloc_ucontext = mthca_alloc_ucontext, 1175 .attach_mcast = mthca_multicast_attach, 1176 .create_ah = mthca_ah_create, 1177 .create_cq = mthca_create_cq, 1178 .create_qp = mthca_create_qp, 1179 .dealloc_pd = mthca_dealloc_pd, 1180 .dealloc_ucontext = mthca_dealloc_ucontext, 1181 .dereg_mr = mthca_dereg_mr, 1182 .destroy_ah = mthca_ah_destroy, 1183 .destroy_cq = mthca_destroy_cq, 1184 .destroy_qp = mthca_destroy_qp, 1185 .detach_mcast = mthca_multicast_detach, 1186 .get_dev_fw_str = get_dev_fw_str, 1187 .get_dma_mr = mthca_get_dma_mr, 1188 .get_port_immutable = mthca_port_immutable, 1189 .mmap = mthca_mmap_uar, 1190 .modify_device = mthca_modify_device, 1191 .modify_port = mthca_modify_port, 1192 .modify_qp = mthca_modify_qp, 1193 .poll_cq = mthca_poll_cq, 1194 .process_mad = mthca_process_mad, 1195 .query_ah = mthca_ah_query, 1196 .query_device = mthca_query_device, 1197 .query_gid = mthca_query_gid, 1198 .query_pkey = mthca_query_pkey, 1199 .query_port = mthca_query_port, 1200 .query_qp = mthca_query_qp, 1201 .reg_user_mr = mthca_reg_user_mr, 1202 .resize_cq = mthca_resize_cq, 1203 INIT_RDMA_OBJ_SIZE(ib_pd, mthca_pd, ibpd), 1204 INIT_RDMA_OBJ_SIZE(ib_ucontext, mthca_ucontext, ibucontext), 1205 }; 1206 1207 static const struct ib_device_ops mthca_dev_arbel_srq_ops = { 1208 .create_srq = mthca_create_srq, 1209 .destroy_srq = mthca_destroy_srq, 1210 .modify_srq = mthca_modify_srq, 1211 .post_srq_recv = mthca_arbel_post_srq_recv, 1212 .query_srq = mthca_query_srq, 1213 }; 1214 1215 static const struct ib_device_ops mthca_dev_tavor_srq_ops = { 1216 .create_srq = mthca_create_srq, 1217 .destroy_srq = mthca_destroy_srq, 1218 .modify_srq = mthca_modify_srq, 1219 .post_srq_recv = mthca_tavor_post_srq_recv, 1220 .query_srq = mthca_query_srq, 1221 }; 1222 1223 static const struct ib_device_ops mthca_dev_arbel_fmr_ops = { 1224 .alloc_fmr = mthca_alloc_fmr, 1225 .dealloc_fmr = mthca_dealloc_fmr, 1226 .map_phys_fmr = mthca_arbel_map_phys_fmr, 1227 .unmap_fmr = mthca_unmap_fmr, 1228 }; 1229 1230 static const struct ib_device_ops mthca_dev_tavor_fmr_ops = { 1231 .alloc_fmr = mthca_alloc_fmr, 1232 .dealloc_fmr = mthca_dealloc_fmr, 1233 .map_phys_fmr = mthca_tavor_map_phys_fmr, 1234 .unmap_fmr = mthca_unmap_fmr, 1235 }; 1236 1237 static const struct ib_device_ops mthca_dev_arbel_ops = { 1238 .post_recv = mthca_arbel_post_receive, 1239 .post_send = mthca_arbel_post_send, 1240 .req_notify_cq = mthca_arbel_arm_cq, 1241 }; 1242 1243 static const struct ib_device_ops mthca_dev_tavor_ops = { 1244 .post_recv = mthca_tavor_post_receive, 1245 .post_send = mthca_tavor_post_send, 1246 .req_notify_cq = mthca_tavor_arm_cq, 1247 }; 1248 1249 int mthca_register_device(struct mthca_dev *dev) 1250 { 1251 int ret; 1252 1253 ret = mthca_init_node_data(dev); 1254 if (ret) 1255 return ret; 1256 1257 dev->ib_dev.owner = THIS_MODULE; 1258 1259 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; 1260 dev->ib_dev.uverbs_cmd_mask = 1261 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1262 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1263 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1264 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1265 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1266 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1267 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1268 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1269 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1270 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1271 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1272 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1273 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1274 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1275 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1276 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1277 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); 1278 dev->ib_dev.node_type = RDMA_NODE_IB_CA; 1279 dev->ib_dev.phys_port_cnt = dev->limits.num_ports; 1280 dev->ib_dev.num_comp_vectors = 1; 1281 dev->ib_dev.dev.parent = &dev->pdev->dev; 1282 1283 if (dev->mthca_flags & MTHCA_FLAG_SRQ) { 1284 dev->ib_dev.uverbs_cmd_mask |= 1285 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1286 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1287 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1288 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1289 1290 if (mthca_is_memfree(dev)) 1291 ib_set_device_ops(&dev->ib_dev, 1292 &mthca_dev_arbel_srq_ops); 1293 else 1294 ib_set_device_ops(&dev->ib_dev, 1295 &mthca_dev_tavor_srq_ops); 1296 } 1297 1298 if (dev->mthca_flags & MTHCA_FLAG_FMR) { 1299 if (mthca_is_memfree(dev)) 1300 ib_set_device_ops(&dev->ib_dev, 1301 &mthca_dev_arbel_fmr_ops); 1302 else 1303 ib_set_device_ops(&dev->ib_dev, 1304 &mthca_dev_tavor_fmr_ops); 1305 } 1306 1307 ib_set_device_ops(&dev->ib_dev, &mthca_dev_ops); 1308 1309 if (mthca_is_memfree(dev)) 1310 ib_set_device_ops(&dev->ib_dev, &mthca_dev_arbel_ops); 1311 else 1312 ib_set_device_ops(&dev->ib_dev, &mthca_dev_tavor_ops); 1313 1314 mutex_init(&dev->cap_mask_mutex); 1315 1316 rdma_set_device_sysfs_group(&dev->ib_dev, &mthca_attr_group); 1317 dev->ib_dev.driver_id = RDMA_DRIVER_MTHCA; 1318 ret = ib_register_device(&dev->ib_dev, "mthca%d"); 1319 if (ret) 1320 return ret; 1321 1322 mthca_start_catas_poll(dev); 1323 1324 return 0; 1325 } 1326 1327 void mthca_unregister_device(struct mthca_dev *dev) 1328 { 1329 mthca_stop_catas_poll(dev); 1330 ib_unregister_device(&dev->ib_dev); 1331 } 1332