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 41 #include <linux/sched.h> 42 #include <linux/slab.h> 43 #include <linux/stat.h> 44 #include <linux/mm.h> 45 #include <linux/export.h> 46 47 #include "mthca_dev.h" 48 #include "mthca_cmd.h" 49 #include <rdma/mthca-abi.h> 50 #include "mthca_memfree.h" 51 52 static void init_query_mad(struct ib_smp *mad) 53 { 54 mad->base_version = 1; 55 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 56 mad->class_version = 1; 57 mad->method = IB_MGMT_METHOD_GET; 58 } 59 60 static int mthca_query_device(struct ib_device *ibdev, struct ib_device_attr *props, 61 struct ib_udata *uhw) 62 { 63 struct ib_smp *in_mad = NULL; 64 struct ib_smp *out_mad = NULL; 65 int err = -ENOMEM; 66 struct mthca_dev *mdev = to_mdev(ibdev); 67 68 if (uhw->inlen || uhw->outlen) 69 return -EINVAL; 70 71 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 72 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 73 if (!in_mad || !out_mad) 74 goto out; 75 76 memset(props, 0, sizeof *props); 77 78 props->fw_ver = mdev->fw_ver; 79 80 init_query_mad(in_mad); 81 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 82 83 err = mthca_MAD_IFC(mdev, 1, 1, 84 1, NULL, NULL, in_mad, out_mad); 85 if (err) 86 goto out; 87 88 props->device_cap_flags = mdev->device_cap_flags; 89 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 90 0xffffff; 91 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); 92 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); 93 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 94 95 props->max_mr_size = ~0ull; 96 props->page_size_cap = mdev->limits.page_size_cap; 97 props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; 98 props->max_qp_wr = mdev->limits.max_wqes; 99 props->max_send_sge = mdev->limits.max_sg; 100 props->max_recv_sge = mdev->limits.max_sg; 101 props->max_sge_rd = mdev->limits.max_sg; 102 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; 103 props->max_cqe = mdev->limits.max_cqes; 104 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; 105 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; 106 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; 107 props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; 108 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 109 props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; 110 props->max_srq_wr = mdev->limits.max_srq_wqes; 111 props->max_srq_sge = mdev->limits.max_srq_sge; 112 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; 113 props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? 114 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 115 props->max_pkeys = mdev->limits.pkey_table_len; 116 props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; 117 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; 118 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 119 props->max_mcast_grp; 120 /* 121 * If Sinai memory key optimization is being used, then only 122 * the 8-bit key portion will change. For other HCAs, the 123 * unused index bits will also be used for FMR remapping. 124 */ 125 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 126 props->max_map_per_fmr = 255; 127 else 128 props->max_map_per_fmr = 129 (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1; 130 131 err = 0; 132 out: 133 kfree(in_mad); 134 kfree(out_mad); 135 return err; 136 } 137 138 static int mthca_query_port(struct ib_device *ibdev, 139 u8 port, struct ib_port_attr *props) 140 { 141 struct ib_smp *in_mad = NULL; 142 struct ib_smp *out_mad = NULL; 143 int err = -ENOMEM; 144 145 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 146 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 147 if (!in_mad || !out_mad) 148 goto out; 149 150 /* props being zeroed by the caller, avoid zeroing it here */ 151 152 init_query_mad(in_mad); 153 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 154 in_mad->attr_mod = cpu_to_be32(port); 155 156 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 157 port, NULL, NULL, in_mad, out_mad); 158 if (err) 159 goto out; 160 161 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 162 props->lmc = out_mad->data[34] & 0x7; 163 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 164 props->sm_sl = out_mad->data[36] & 0xf; 165 props->state = out_mad->data[32] & 0xf; 166 props->phys_state = out_mad->data[33] >> 4; 167 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 168 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; 169 props->max_msg_sz = 0x80000000; 170 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; 171 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 172 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 173 props->active_width = out_mad->data[31] & 0xf; 174 props->active_speed = out_mad->data[35] >> 4; 175 props->max_mtu = out_mad->data[41] & 0xf; 176 props->active_mtu = out_mad->data[36] >> 4; 177 props->subnet_timeout = out_mad->data[51] & 0x1f; 178 props->max_vl_num = out_mad->data[37] >> 4; 179 props->init_type_reply = out_mad->data[41] >> 4; 180 181 out: 182 kfree(in_mad); 183 kfree(out_mad); 184 return err; 185 } 186 187 static int mthca_modify_device(struct ib_device *ibdev, 188 int mask, 189 struct ib_device_modify *props) 190 { 191 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 192 return -EOPNOTSUPP; 193 194 if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 195 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 196 return -ERESTARTSYS; 197 memcpy(ibdev->node_desc, props->node_desc, 198 IB_DEVICE_NODE_DESC_MAX); 199 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 200 } 201 202 return 0; 203 } 204 205 static int mthca_modify_port(struct ib_device *ibdev, 206 u8 port, int port_modify_mask, 207 struct ib_port_modify *props) 208 { 209 struct mthca_set_ib_param set_ib; 210 struct ib_port_attr attr; 211 int err; 212 213 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 214 return -ERESTARTSYS; 215 216 err = ib_query_port(ibdev, port, &attr); 217 if (err) 218 goto out; 219 220 set_ib.set_si_guid = 0; 221 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); 222 223 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 224 ~props->clr_port_cap_mask; 225 226 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port); 227 if (err) 228 goto out; 229 out: 230 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 231 return err; 232 } 233 234 static int mthca_query_pkey(struct ib_device *ibdev, 235 u8 port, u16 index, u16 *pkey) 236 { 237 struct ib_smp *in_mad = NULL; 238 struct ib_smp *out_mad = NULL; 239 int err = -ENOMEM; 240 241 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 242 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 243 if (!in_mad || !out_mad) 244 goto out; 245 246 init_query_mad(in_mad); 247 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 248 in_mad->attr_mod = cpu_to_be32(index / 32); 249 250 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 251 port, NULL, NULL, in_mad, out_mad); 252 if (err) 253 goto out; 254 255 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 256 257 out: 258 kfree(in_mad); 259 kfree(out_mad); 260 return err; 261 } 262 263 static int mthca_query_gid(struct ib_device *ibdev, u8 port, 264 int index, union ib_gid *gid) 265 { 266 struct ib_smp *in_mad = NULL; 267 struct ib_smp *out_mad = NULL; 268 int err = -ENOMEM; 269 270 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 271 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 272 if (!in_mad || !out_mad) 273 goto out; 274 275 init_query_mad(in_mad); 276 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 277 in_mad->attr_mod = cpu_to_be32(port); 278 279 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 280 port, NULL, NULL, in_mad, out_mad); 281 if (err) 282 goto out; 283 284 memcpy(gid->raw, out_mad->data + 8, 8); 285 286 init_query_mad(in_mad); 287 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 288 in_mad->attr_mod = cpu_to_be32(index / 8); 289 290 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 291 port, NULL, NULL, in_mad, out_mad); 292 if (err) 293 goto out; 294 295 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 296 297 out: 298 kfree(in_mad); 299 kfree(out_mad); 300 return err; 301 } 302 303 static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, 304 struct ib_udata *udata) 305 { 306 struct mthca_alloc_ucontext_resp uresp; 307 struct mthca_ucontext *context; 308 int err; 309 310 if (!(to_mdev(ibdev)->active)) 311 return ERR_PTR(-EAGAIN); 312 313 memset(&uresp, 0, sizeof uresp); 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 context = kmalloc(sizeof *context, GFP_KERNEL); 322 if (!context) 323 return ERR_PTR(-ENOMEM); 324 325 err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); 326 if (err) { 327 kfree(context); 328 return ERR_PTR(err); 329 } 330 331 context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); 332 if (IS_ERR(context->db_tab)) { 333 err = PTR_ERR(context->db_tab); 334 mthca_uar_free(to_mdev(ibdev), &context->uar); 335 kfree(context); 336 return ERR_PTR(err); 337 } 338 339 if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { 340 mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); 341 mthca_uar_free(to_mdev(ibdev), &context->uar); 342 kfree(context); 343 return ERR_PTR(-EFAULT); 344 } 345 346 context->reg_mr_warned = 0; 347 348 return &context->ibucontext; 349 } 350 351 static int mthca_dealloc_ucontext(struct ib_ucontext *context) 352 { 353 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, 354 to_mucontext(context)->db_tab); 355 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); 356 kfree(to_mucontext(context)); 357 358 return 0; 359 } 360 361 static int mthca_mmap_uar(struct ib_ucontext *context, 362 struct vm_area_struct *vma) 363 { 364 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 365 return -EINVAL; 366 367 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 368 369 if (io_remap_pfn_range(vma, vma->vm_start, 370 to_mucontext(context)->uar.pfn, 371 PAGE_SIZE, vma->vm_page_prot)) 372 return -EAGAIN; 373 374 return 0; 375 } 376 377 static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, 378 struct ib_ucontext *context, 379 struct ib_udata *udata) 380 { 381 struct mthca_pd *pd; 382 int err; 383 384 pd = kmalloc(sizeof *pd, GFP_KERNEL); 385 if (!pd) 386 return ERR_PTR(-ENOMEM); 387 388 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); 389 if (err) { 390 kfree(pd); 391 return ERR_PTR(err); 392 } 393 394 if (context) { 395 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { 396 mthca_pd_free(to_mdev(ibdev), pd); 397 kfree(pd); 398 return ERR_PTR(-EFAULT); 399 } 400 } 401 402 return &pd->ibpd; 403 } 404 405 static int mthca_dealloc_pd(struct ib_pd *pd) 406 { 407 mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); 408 kfree(pd); 409 410 return 0; 411 } 412 413 static struct ib_ah *mthca_ah_create(struct ib_pd *pd, 414 struct rdma_ah_attr *ah_attr, 415 u32 flags, 416 struct ib_udata *udata) 417 418 { 419 int err; 420 struct mthca_ah *ah; 421 422 ah = kmalloc(sizeof *ah, GFP_ATOMIC); 423 if (!ah) 424 return ERR_PTR(-ENOMEM); 425 426 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); 427 if (err) { 428 kfree(ah); 429 return ERR_PTR(err); 430 } 431 432 return &ah->ibah; 433 } 434 435 static int mthca_ah_destroy(struct ib_ah *ah, u32 flags) 436 { 437 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); 438 kfree(ah); 439 440 return 0; 441 } 442 443 static struct ib_srq *mthca_create_srq(struct ib_pd *pd, 444 struct ib_srq_init_attr *init_attr, 445 struct ib_udata *udata) 446 { 447 struct mthca_create_srq ucmd; 448 struct mthca_ucontext *context = NULL; 449 struct mthca_srq *srq; 450 int err; 451 452 if (init_attr->srq_type != IB_SRQT_BASIC) 453 return ERR_PTR(-EOPNOTSUPP); 454 455 srq = kmalloc(sizeof *srq, GFP_KERNEL); 456 if (!srq) 457 return ERR_PTR(-ENOMEM); 458 459 if (udata) { 460 context = to_mucontext(pd->uobject->context); 461 462 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 463 err = -EFAULT; 464 goto err_free; 465 } 466 467 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 468 context->db_tab, ucmd.db_index, 469 ucmd.db_page); 470 471 if (err) 472 goto err_free; 473 474 srq->mr.ibmr.lkey = ucmd.lkey; 475 srq->db_index = ucmd.db_index; 476 } 477 478 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), 479 &init_attr->attr, srq, udata); 480 481 if (err && udata) 482 mthca_unmap_user_db(to_mdev(pd->device), &context->uar, 483 context->db_tab, ucmd.db_index); 484 485 if (err) 486 goto err_free; 487 488 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { 489 mthca_free_srq(to_mdev(pd->device), srq); 490 err = -EFAULT; 491 goto err_free; 492 } 493 494 return &srq->ibsrq; 495 496 err_free: 497 kfree(srq); 498 499 return ERR_PTR(err); 500 } 501 502 static int mthca_destroy_srq(struct ib_srq *srq) 503 { 504 struct mthca_ucontext *context; 505 506 if (srq->uobject) { 507 context = to_mucontext(srq->uobject->context); 508 509 mthca_unmap_user_db(to_mdev(srq->device), &context->uar, 510 context->db_tab, to_msrq(srq)->db_index); 511 } 512 513 mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); 514 kfree(srq); 515 516 return 0; 517 } 518 519 static struct ib_qp *mthca_create_qp(struct ib_pd *pd, 520 struct ib_qp_init_attr *init_attr, 521 struct ib_udata *udata) 522 { 523 struct mthca_create_qp ucmd; 524 struct mthca_qp *qp; 525 int err; 526 527 if (init_attr->create_flags) 528 return ERR_PTR(-EINVAL); 529 530 switch (init_attr->qp_type) { 531 case IB_QPT_RC: 532 case IB_QPT_UC: 533 case IB_QPT_UD: 534 { 535 struct mthca_ucontext *context; 536 537 qp = kmalloc(sizeof *qp, GFP_KERNEL); 538 if (!qp) 539 return ERR_PTR(-ENOMEM); 540 541 if (udata) { 542 context = to_mucontext(pd->uobject->context); 543 544 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 545 kfree(qp); 546 return ERR_PTR(-EFAULT); 547 } 548 549 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 550 context->db_tab, 551 ucmd.sq_db_index, ucmd.sq_db_page); 552 if (err) { 553 kfree(qp); 554 return ERR_PTR(err); 555 } 556 557 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 558 context->db_tab, 559 ucmd.rq_db_index, ucmd.rq_db_page); 560 if (err) { 561 mthca_unmap_user_db(to_mdev(pd->device), 562 &context->uar, 563 context->db_tab, 564 ucmd.sq_db_index); 565 kfree(qp); 566 return ERR_PTR(err); 567 } 568 569 qp->mr.ibmr.lkey = ucmd.lkey; 570 qp->sq.db_index = ucmd.sq_db_index; 571 qp->rq.db_index = ucmd.rq_db_index; 572 } 573 574 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), 575 to_mcq(init_attr->send_cq), 576 to_mcq(init_attr->recv_cq), 577 init_attr->qp_type, init_attr->sq_sig_type, 578 &init_attr->cap, qp, udata); 579 580 if (err && udata) { 581 context = to_mucontext(pd->uobject->context); 582 583 mthca_unmap_user_db(to_mdev(pd->device), 584 &context->uar, 585 context->db_tab, 586 ucmd.sq_db_index); 587 mthca_unmap_user_db(to_mdev(pd->device), 588 &context->uar, 589 context->db_tab, 590 ucmd.rq_db_index); 591 } 592 593 qp->ibqp.qp_num = qp->qpn; 594 break; 595 } 596 case IB_QPT_SMI: 597 case IB_QPT_GSI: 598 { 599 /* Don't allow userspace to create special QPs */ 600 if (udata) 601 return ERR_PTR(-EINVAL); 602 603 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); 604 if (!qp) 605 return ERR_PTR(-ENOMEM); 606 607 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; 608 609 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), 610 to_mcq(init_attr->send_cq), 611 to_mcq(init_attr->recv_cq), 612 init_attr->sq_sig_type, &init_attr->cap, 613 qp->ibqp.qp_num, init_attr->port_num, 614 to_msqp(qp), udata); 615 break; 616 } 617 default: 618 /* Don't support raw QPs */ 619 return ERR_PTR(-ENOSYS); 620 } 621 622 if (err) { 623 kfree(qp); 624 return ERR_PTR(err); 625 } 626 627 init_attr->cap.max_send_wr = qp->sq.max; 628 init_attr->cap.max_recv_wr = qp->rq.max; 629 init_attr->cap.max_send_sge = qp->sq.max_gs; 630 init_attr->cap.max_recv_sge = qp->rq.max_gs; 631 init_attr->cap.max_inline_data = qp->max_inline_data; 632 633 return &qp->ibqp; 634 } 635 636 static int mthca_destroy_qp(struct ib_qp *qp) 637 { 638 if (qp->uobject) { 639 mthca_unmap_user_db(to_mdev(qp->device), 640 &to_mucontext(qp->uobject->context)->uar, 641 to_mucontext(qp->uobject->context)->db_tab, 642 to_mqp(qp)->sq.db_index); 643 mthca_unmap_user_db(to_mdev(qp->device), 644 &to_mucontext(qp->uobject->context)->uar, 645 to_mucontext(qp->uobject->context)->db_tab, 646 to_mqp(qp)->rq.db_index); 647 } 648 mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); 649 kfree(qp); 650 return 0; 651 } 652 653 static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, 654 const struct ib_cq_init_attr *attr, 655 struct ib_ucontext *context, 656 struct ib_udata *udata) 657 { 658 int entries = attr->cqe; 659 struct mthca_create_cq ucmd; 660 struct mthca_cq *cq; 661 int nent; 662 int err; 663 664 if (attr->flags) 665 return ERR_PTR(-EINVAL); 666 667 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) 668 return ERR_PTR(-EINVAL); 669 670 if (context) { 671 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 672 return ERR_PTR(-EFAULT); 673 674 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 675 to_mucontext(context)->db_tab, 676 ucmd.set_db_index, ucmd.set_db_page); 677 if (err) 678 return ERR_PTR(err); 679 680 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 681 to_mucontext(context)->db_tab, 682 ucmd.arm_db_index, ucmd.arm_db_page); 683 if (err) 684 goto err_unmap_set; 685 } 686 687 cq = kmalloc(sizeof *cq, GFP_KERNEL); 688 if (!cq) { 689 err = -ENOMEM; 690 goto err_unmap_arm; 691 } 692 693 if (context) { 694 cq->buf.mr.ibmr.lkey = ucmd.lkey; 695 cq->set_ci_db_index = ucmd.set_db_index; 696 cq->arm_db_index = ucmd.arm_db_index; 697 } 698 699 for (nent = 1; nent <= entries; nent <<= 1) 700 ; /* nothing */ 701 702 err = mthca_init_cq(to_mdev(ibdev), nent, 703 context ? to_mucontext(context) : NULL, 704 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, 705 cq); 706 if (err) 707 goto err_free; 708 709 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { 710 mthca_free_cq(to_mdev(ibdev), cq); 711 err = -EFAULT; 712 goto err_free; 713 } 714 715 cq->resize_buf = NULL; 716 717 return &cq->ibcq; 718 719 err_free: 720 kfree(cq); 721 722 err_unmap_arm: 723 if (context) 724 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 725 to_mucontext(context)->db_tab, ucmd.arm_db_index); 726 727 err_unmap_set: 728 if (context) 729 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 730 to_mucontext(context)->db_tab, ucmd.set_db_index); 731 732 return ERR_PTR(err); 733 } 734 735 static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, 736 int entries) 737 { 738 int ret; 739 740 spin_lock_irq(&cq->lock); 741 if (cq->resize_buf) { 742 ret = -EBUSY; 743 goto unlock; 744 } 745 746 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); 747 if (!cq->resize_buf) { 748 ret = -ENOMEM; 749 goto unlock; 750 } 751 752 cq->resize_buf->state = CQ_RESIZE_ALLOC; 753 754 ret = 0; 755 756 unlock: 757 spin_unlock_irq(&cq->lock); 758 759 if (ret) 760 return ret; 761 762 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); 763 if (ret) { 764 spin_lock_irq(&cq->lock); 765 kfree(cq->resize_buf); 766 cq->resize_buf = NULL; 767 spin_unlock_irq(&cq->lock); 768 return ret; 769 } 770 771 cq->resize_buf->cqe = entries - 1; 772 773 spin_lock_irq(&cq->lock); 774 cq->resize_buf->state = CQ_RESIZE_READY; 775 spin_unlock_irq(&cq->lock); 776 777 return 0; 778 } 779 780 static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) 781 { 782 struct mthca_dev *dev = to_mdev(ibcq->device); 783 struct mthca_cq *cq = to_mcq(ibcq); 784 struct mthca_resize_cq ucmd; 785 u32 lkey; 786 int ret; 787 788 if (entries < 1 || entries > dev->limits.max_cqes) 789 return -EINVAL; 790 791 mutex_lock(&cq->mutex); 792 793 entries = roundup_pow_of_two(entries + 1); 794 if (entries == ibcq->cqe + 1) { 795 ret = 0; 796 goto out; 797 } 798 799 if (cq->is_kernel) { 800 ret = mthca_alloc_resize_buf(dev, cq, entries); 801 if (ret) 802 goto out; 803 lkey = cq->resize_buf->buf.mr.ibmr.lkey; 804 } else { 805 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 806 ret = -EFAULT; 807 goto out; 808 } 809 lkey = ucmd.lkey; 810 } 811 812 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries)); 813 814 if (ret) { 815 if (cq->resize_buf) { 816 mthca_free_cq_buf(dev, &cq->resize_buf->buf, 817 cq->resize_buf->cqe); 818 kfree(cq->resize_buf); 819 spin_lock_irq(&cq->lock); 820 cq->resize_buf = NULL; 821 spin_unlock_irq(&cq->lock); 822 } 823 goto out; 824 } 825 826 if (cq->is_kernel) { 827 struct mthca_cq_buf tbuf; 828 int tcqe; 829 830 spin_lock_irq(&cq->lock); 831 if (cq->resize_buf->state == CQ_RESIZE_READY) { 832 mthca_cq_resize_copy_cqes(cq); 833 tbuf = cq->buf; 834 tcqe = cq->ibcq.cqe; 835 cq->buf = cq->resize_buf->buf; 836 cq->ibcq.cqe = cq->resize_buf->cqe; 837 } else { 838 tbuf = cq->resize_buf->buf; 839 tcqe = cq->resize_buf->cqe; 840 } 841 842 kfree(cq->resize_buf); 843 cq->resize_buf = NULL; 844 spin_unlock_irq(&cq->lock); 845 846 mthca_free_cq_buf(dev, &tbuf, tcqe); 847 } else 848 ibcq->cqe = entries - 1; 849 850 out: 851 mutex_unlock(&cq->mutex); 852 853 return ret; 854 } 855 856 static int mthca_destroy_cq(struct ib_cq *cq) 857 { 858 if (cq->uobject) { 859 mthca_unmap_user_db(to_mdev(cq->device), 860 &to_mucontext(cq->uobject->context)->uar, 861 to_mucontext(cq->uobject->context)->db_tab, 862 to_mcq(cq)->arm_db_index); 863 mthca_unmap_user_db(to_mdev(cq->device), 864 &to_mucontext(cq->uobject->context)->uar, 865 to_mucontext(cq->uobject->context)->db_tab, 866 to_mcq(cq)->set_ci_db_index); 867 } 868 mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); 869 kfree(cq); 870 871 return 0; 872 } 873 874 static inline u32 convert_access(int acc) 875 { 876 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | 877 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | 878 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | 879 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | 880 MTHCA_MPT_FLAG_LOCAL_READ; 881 } 882 883 static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) 884 { 885 struct mthca_mr *mr; 886 int err; 887 888 mr = kmalloc(sizeof *mr, GFP_KERNEL); 889 if (!mr) 890 return ERR_PTR(-ENOMEM); 891 892 err = mthca_mr_alloc_notrans(to_mdev(pd->device), 893 to_mpd(pd)->pd_num, 894 convert_access(acc), mr); 895 896 if (err) { 897 kfree(mr); 898 return ERR_PTR(err); 899 } 900 901 mr->umem = NULL; 902 903 return &mr->ibmr; 904 } 905 906 static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 907 u64 virt, int acc, struct ib_udata *udata) 908 { 909 struct mthca_dev *dev = to_mdev(pd->device); 910 struct scatterlist *sg; 911 struct mthca_mr *mr; 912 struct mthca_reg_mr ucmd; 913 u64 *pages; 914 int shift, n, len; 915 int i, k, entry; 916 int err = 0; 917 int write_mtt_size; 918 919 if (udata->inlen < sizeof ucmd) { 920 if (!to_mucontext(pd->uobject->context)->reg_mr_warned) { 921 mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n", 922 current->comm); 923 mthca_warn(dev, " Update libmthca to fix this.\n"); 924 } 925 ++to_mucontext(pd->uobject->context)->reg_mr_warned; 926 ucmd.mr_attrs = 0; 927 } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 928 return ERR_PTR(-EFAULT); 929 930 mr = kmalloc(sizeof *mr, GFP_KERNEL); 931 if (!mr) 932 return ERR_PTR(-ENOMEM); 933 934 mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, 935 ucmd.mr_attrs & MTHCA_MR_DMASYNC); 936 937 if (IS_ERR(mr->umem)) { 938 err = PTR_ERR(mr->umem); 939 goto err; 940 } 941 942 shift = mr->umem->page_shift; 943 n = mr->umem->nmap; 944 945 mr->mtt = mthca_alloc_mtt(dev, n); 946 if (IS_ERR(mr->mtt)) { 947 err = PTR_ERR(mr->mtt); 948 goto err_umem; 949 } 950 951 pages = (u64 *) __get_free_page(GFP_KERNEL); 952 if (!pages) { 953 err = -ENOMEM; 954 goto err_mtt; 955 } 956 957 i = n = 0; 958 959 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); 960 961 for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) { 962 len = sg_dma_len(sg) >> shift; 963 for (k = 0; k < len; ++k) { 964 pages[i++] = sg_dma_address(sg) + (k << shift); 965 /* 966 * Be friendly to write_mtt and pass it chunks 967 * of appropriate size. 968 */ 969 if (i == write_mtt_size) { 970 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 971 if (err) 972 goto mtt_done; 973 n += i; 974 i = 0; 975 } 976 } 977 } 978 979 if (i) 980 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 981 mtt_done: 982 free_page((unsigned long) pages); 983 if (err) 984 goto err_mtt; 985 986 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, 987 convert_access(acc), mr); 988 989 if (err) 990 goto err_mtt; 991 992 return &mr->ibmr; 993 994 err_mtt: 995 mthca_free_mtt(dev, mr->mtt); 996 997 err_umem: 998 ib_umem_release(mr->umem); 999 1000 err: 1001 kfree(mr); 1002 return ERR_PTR(err); 1003 } 1004 1005 static int mthca_dereg_mr(struct ib_mr *mr) 1006 { 1007 struct mthca_mr *mmr = to_mmr(mr); 1008 1009 mthca_free_mr(to_mdev(mr->device), mmr); 1010 if (mmr->umem) 1011 ib_umem_release(mmr->umem); 1012 kfree(mmr); 1013 1014 return 0; 1015 } 1016 1017 static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, 1018 struct ib_fmr_attr *fmr_attr) 1019 { 1020 struct mthca_fmr *fmr; 1021 int err; 1022 1023 fmr = kmalloc(sizeof *fmr, GFP_KERNEL); 1024 if (!fmr) 1025 return ERR_PTR(-ENOMEM); 1026 1027 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); 1028 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, 1029 convert_access(mr_access_flags), fmr); 1030 1031 if (err) { 1032 kfree(fmr); 1033 return ERR_PTR(err); 1034 } 1035 1036 return &fmr->ibmr; 1037 } 1038 1039 static int mthca_dealloc_fmr(struct ib_fmr *fmr) 1040 { 1041 struct mthca_fmr *mfmr = to_mfmr(fmr); 1042 int err; 1043 1044 err = mthca_free_fmr(to_mdev(fmr->device), mfmr); 1045 if (err) 1046 return err; 1047 1048 kfree(mfmr); 1049 return 0; 1050 } 1051 1052 static int mthca_unmap_fmr(struct list_head *fmr_list) 1053 { 1054 struct ib_fmr *fmr; 1055 int err; 1056 struct mthca_dev *mdev = NULL; 1057 1058 list_for_each_entry(fmr, fmr_list, list) { 1059 if (mdev && to_mdev(fmr->device) != mdev) 1060 return -EINVAL; 1061 mdev = to_mdev(fmr->device); 1062 } 1063 1064 if (!mdev) 1065 return 0; 1066 1067 if (mthca_is_memfree(mdev)) { 1068 list_for_each_entry(fmr, fmr_list, list) 1069 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); 1070 1071 wmb(); 1072 } else 1073 list_for_each_entry(fmr, fmr_list, list) 1074 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); 1075 1076 err = mthca_SYNC_TPT(mdev); 1077 return err; 1078 } 1079 1080 static ssize_t hw_rev_show(struct device *device, 1081 struct device_attribute *attr, char *buf) 1082 { 1083 struct mthca_dev *dev = 1084 container_of(device, struct mthca_dev, ib_dev.dev); 1085 return sprintf(buf, "%x\n", dev->rev_id); 1086 } 1087 static DEVICE_ATTR_RO(hw_rev); 1088 1089 static ssize_t hca_type_show(struct device *device, 1090 struct device_attribute *attr, char *buf) 1091 { 1092 struct mthca_dev *dev = 1093 container_of(device, struct mthca_dev, ib_dev.dev); 1094 switch (dev->pdev->device) { 1095 case PCI_DEVICE_ID_MELLANOX_TAVOR: 1096 return sprintf(buf, "MT23108\n"); 1097 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: 1098 return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); 1099 case PCI_DEVICE_ID_MELLANOX_ARBEL: 1100 return sprintf(buf, "MT25208\n"); 1101 case PCI_DEVICE_ID_MELLANOX_SINAI: 1102 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: 1103 return sprintf(buf, "MT25204\n"); 1104 default: 1105 return sprintf(buf, "unknown\n"); 1106 } 1107 } 1108 static DEVICE_ATTR_RO(hca_type); 1109 1110 static ssize_t board_id_show(struct device *device, 1111 struct device_attribute *attr, char *buf) 1112 { 1113 struct mthca_dev *dev = 1114 container_of(device, struct mthca_dev, ib_dev.dev); 1115 return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); 1116 } 1117 static DEVICE_ATTR_RO(board_id); 1118 1119 static struct attribute *mthca_dev_attributes[] = { 1120 &dev_attr_hw_rev.attr, 1121 &dev_attr_hca_type.attr, 1122 &dev_attr_board_id.attr, 1123 NULL 1124 }; 1125 1126 static const struct attribute_group mthca_attr_group = { 1127 .attrs = mthca_dev_attributes, 1128 }; 1129 1130 static int mthca_init_node_data(struct mthca_dev *dev) 1131 { 1132 struct ib_smp *in_mad = NULL; 1133 struct ib_smp *out_mad = NULL; 1134 int err = -ENOMEM; 1135 1136 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1137 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1138 if (!in_mad || !out_mad) 1139 goto out; 1140 1141 init_query_mad(in_mad); 1142 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1143 1144 err = mthca_MAD_IFC(dev, 1, 1, 1145 1, NULL, NULL, in_mad, out_mad); 1146 if (err) 1147 goto out; 1148 1149 memcpy(dev->ib_dev.node_desc, out_mad->data, IB_DEVICE_NODE_DESC_MAX); 1150 1151 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1152 1153 err = mthca_MAD_IFC(dev, 1, 1, 1154 1, NULL, NULL, in_mad, out_mad); 1155 if (err) 1156 goto out; 1157 1158 if (mthca_is_memfree(dev)) 1159 dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 1160 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1161 1162 out: 1163 kfree(in_mad); 1164 kfree(out_mad); 1165 return err; 1166 } 1167 1168 static int mthca_port_immutable(struct ib_device *ibdev, u8 port_num, 1169 struct ib_port_immutable *immutable) 1170 { 1171 struct ib_port_attr attr; 1172 int err; 1173 1174 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB; 1175 1176 err = ib_query_port(ibdev, port_num, &attr); 1177 if (err) 1178 return err; 1179 1180 immutable->pkey_tbl_len = attr.pkey_tbl_len; 1181 immutable->gid_tbl_len = attr.gid_tbl_len; 1182 immutable->max_mad_size = IB_MGMT_MAD_SIZE; 1183 1184 return 0; 1185 } 1186 1187 static void get_dev_fw_str(struct ib_device *device, char *str) 1188 { 1189 struct mthca_dev *dev = 1190 container_of(device, struct mthca_dev, ib_dev); 1191 snprintf(str, IB_FW_VERSION_NAME_MAX, "%d.%d.%d", 1192 (int) (dev->fw_ver >> 32), 1193 (int) (dev->fw_ver >> 16) & 0xffff, 1194 (int) dev->fw_ver & 0xffff); 1195 } 1196 1197 static const struct ib_device_ops mthca_dev_ops = { 1198 .alloc_pd = mthca_alloc_pd, 1199 .alloc_ucontext = mthca_alloc_ucontext, 1200 .attach_mcast = mthca_multicast_attach, 1201 .create_ah = mthca_ah_create, 1202 .create_cq = mthca_create_cq, 1203 .create_qp = mthca_create_qp, 1204 .dealloc_pd = mthca_dealloc_pd, 1205 .dealloc_ucontext = mthca_dealloc_ucontext, 1206 .dereg_mr = mthca_dereg_mr, 1207 .destroy_ah = mthca_ah_destroy, 1208 .destroy_cq = mthca_destroy_cq, 1209 .destroy_qp = mthca_destroy_qp, 1210 .detach_mcast = mthca_multicast_detach, 1211 .get_dev_fw_str = get_dev_fw_str, 1212 .get_dma_mr = mthca_get_dma_mr, 1213 .get_port_immutable = mthca_port_immutable, 1214 .mmap = mthca_mmap_uar, 1215 .modify_device = mthca_modify_device, 1216 .modify_port = mthca_modify_port, 1217 .modify_qp = mthca_modify_qp, 1218 .poll_cq = mthca_poll_cq, 1219 .process_mad = mthca_process_mad, 1220 .query_ah = mthca_ah_query, 1221 .query_device = mthca_query_device, 1222 .query_gid = mthca_query_gid, 1223 .query_pkey = mthca_query_pkey, 1224 .query_port = mthca_query_port, 1225 .query_qp = mthca_query_qp, 1226 .reg_user_mr = mthca_reg_user_mr, 1227 .resize_cq = mthca_resize_cq, 1228 }; 1229 1230 static const struct ib_device_ops mthca_dev_arbel_srq_ops = { 1231 .create_srq = mthca_create_srq, 1232 .destroy_srq = mthca_destroy_srq, 1233 .modify_srq = mthca_modify_srq, 1234 .post_srq_recv = mthca_arbel_post_srq_recv, 1235 .query_srq = mthca_query_srq, 1236 }; 1237 1238 static const struct ib_device_ops mthca_dev_tavor_srq_ops = { 1239 .create_srq = mthca_create_srq, 1240 .destroy_srq = mthca_destroy_srq, 1241 .modify_srq = mthca_modify_srq, 1242 .post_srq_recv = mthca_tavor_post_srq_recv, 1243 .query_srq = mthca_query_srq, 1244 }; 1245 1246 static const struct ib_device_ops mthca_dev_arbel_fmr_ops = { 1247 .alloc_fmr = mthca_alloc_fmr, 1248 .dealloc_fmr = mthca_dealloc_fmr, 1249 .map_phys_fmr = mthca_arbel_map_phys_fmr, 1250 .unmap_fmr = mthca_unmap_fmr, 1251 }; 1252 1253 static const struct ib_device_ops mthca_dev_tavor_fmr_ops = { 1254 .alloc_fmr = mthca_alloc_fmr, 1255 .dealloc_fmr = mthca_dealloc_fmr, 1256 .map_phys_fmr = mthca_tavor_map_phys_fmr, 1257 .unmap_fmr = mthca_unmap_fmr, 1258 }; 1259 1260 static const struct ib_device_ops mthca_dev_arbel_ops = { 1261 .post_recv = mthca_arbel_post_receive, 1262 .post_send = mthca_arbel_post_send, 1263 .req_notify_cq = mthca_arbel_arm_cq, 1264 }; 1265 1266 static const struct ib_device_ops mthca_dev_tavor_ops = { 1267 .post_recv = mthca_tavor_post_receive, 1268 .post_send = mthca_tavor_post_send, 1269 .req_notify_cq = mthca_tavor_arm_cq, 1270 }; 1271 1272 int mthca_register_device(struct mthca_dev *dev) 1273 { 1274 int ret; 1275 1276 ret = mthca_init_node_data(dev); 1277 if (ret) 1278 return ret; 1279 1280 dev->ib_dev.owner = THIS_MODULE; 1281 1282 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; 1283 dev->ib_dev.uverbs_cmd_mask = 1284 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1285 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1286 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1287 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1288 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1289 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1290 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1291 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1292 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1293 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1294 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1295 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1296 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1297 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1298 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1299 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1300 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); 1301 dev->ib_dev.node_type = RDMA_NODE_IB_CA; 1302 dev->ib_dev.phys_port_cnt = dev->limits.num_ports; 1303 dev->ib_dev.num_comp_vectors = 1; 1304 dev->ib_dev.dev.parent = &dev->pdev->dev; 1305 1306 if (dev->mthca_flags & MTHCA_FLAG_SRQ) { 1307 dev->ib_dev.uverbs_cmd_mask |= 1308 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1309 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1310 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1311 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1312 1313 if (mthca_is_memfree(dev)) 1314 ib_set_device_ops(&dev->ib_dev, 1315 &mthca_dev_arbel_srq_ops); 1316 else 1317 ib_set_device_ops(&dev->ib_dev, 1318 &mthca_dev_tavor_srq_ops); 1319 } 1320 1321 if (dev->mthca_flags & MTHCA_FLAG_FMR) { 1322 if (mthca_is_memfree(dev)) 1323 ib_set_device_ops(&dev->ib_dev, 1324 &mthca_dev_arbel_fmr_ops); 1325 else 1326 ib_set_device_ops(&dev->ib_dev, 1327 &mthca_dev_tavor_fmr_ops); 1328 } 1329 1330 ib_set_device_ops(&dev->ib_dev, &mthca_dev_ops); 1331 1332 if (mthca_is_memfree(dev)) 1333 ib_set_device_ops(&dev->ib_dev, &mthca_dev_arbel_ops); 1334 else 1335 ib_set_device_ops(&dev->ib_dev, &mthca_dev_tavor_ops); 1336 1337 mutex_init(&dev->cap_mask_mutex); 1338 1339 rdma_set_device_sysfs_group(&dev->ib_dev, &mthca_attr_group); 1340 dev->ib_dev.driver_id = RDMA_DRIVER_MTHCA; 1341 ret = ib_register_device(&dev->ib_dev, "mthca%d", NULL); 1342 if (ret) 1343 return ret; 1344 1345 mthca_start_catas_poll(dev); 1346 1347 return 0; 1348 } 1349 1350 void mthca_unregister_device(struct mthca_dev *dev) 1351 { 1352 mthca_stop_catas_poll(dev); 1353 ib_unregister_device(&dev->ib_dev); 1354 } 1355