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/mm.h> 43 44 #include "mthca_dev.h" 45 #include "mthca_cmd.h" 46 #include "mthca_user.h" 47 #include "mthca_memfree.h" 48 49 static void init_query_mad(struct ib_smp *mad) 50 { 51 mad->base_version = 1; 52 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 53 mad->class_version = 1; 54 mad->method = IB_MGMT_METHOD_GET; 55 } 56 57 static int mthca_query_device(struct ib_device *ibdev, 58 struct ib_device_attr *props) 59 { 60 struct ib_smp *in_mad = NULL; 61 struct ib_smp *out_mad = NULL; 62 int err = -ENOMEM; 63 struct mthca_dev *mdev = to_mdev(ibdev); 64 65 u8 status; 66 67 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 68 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 69 if (!in_mad || !out_mad) 70 goto out; 71 72 memset(props, 0, sizeof *props); 73 74 props->fw_ver = mdev->fw_ver; 75 76 init_query_mad(in_mad); 77 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 78 79 err = mthca_MAD_IFC(mdev, 1, 1, 80 1, NULL, NULL, in_mad, out_mad, 81 &status); 82 if (err) 83 goto out; 84 if (status) { 85 err = -EINVAL; 86 goto out; 87 } 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_sge = mdev->limits.max_sg; 101 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; 102 props->max_cqe = mdev->limits.max_cqes; 103 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; 104 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; 105 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; 106 props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; 107 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 108 props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; 109 props->max_srq_wr = mdev->limits.max_srq_wqes; 110 props->max_srq_sge = mdev->limits.max_srq_sge; 111 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; 112 props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? 113 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 114 props->max_pkeys = mdev->limits.pkey_table_len; 115 props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; 116 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; 117 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 118 props->max_mcast_grp; 119 /* 120 * If Sinai memory key optimization is being used, then only 121 * the 8-bit key portion will change. For other HCAs, the 122 * unused index bits will also be used for FMR remapping. 123 */ 124 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 125 props->max_map_per_fmr = 255; 126 else 127 props->max_map_per_fmr = 128 (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1; 129 130 err = 0; 131 out: 132 kfree(in_mad); 133 kfree(out_mad); 134 return err; 135 } 136 137 static int mthca_query_port(struct ib_device *ibdev, 138 u8 port, struct ib_port_attr *props) 139 { 140 struct ib_smp *in_mad = NULL; 141 struct ib_smp *out_mad = NULL; 142 int err = -ENOMEM; 143 u8 status; 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 memset(props, 0, sizeof *props); 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 &status); 159 if (err) 160 goto out; 161 if (status) { 162 err = -EINVAL; 163 goto out; 164 } 165 166 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 167 props->lmc = out_mad->data[34] & 0x7; 168 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 169 props->sm_sl = out_mad->data[36] & 0xf; 170 props->state = out_mad->data[32] & 0xf; 171 props->phys_state = out_mad->data[33] >> 4; 172 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 173 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; 174 props->max_msg_sz = 0x80000000; 175 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; 176 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 177 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 178 props->active_width = out_mad->data[31] & 0xf; 179 props->active_speed = out_mad->data[35] >> 4; 180 props->max_mtu = out_mad->data[41] & 0xf; 181 props->active_mtu = out_mad->data[36] >> 4; 182 props->subnet_timeout = out_mad->data[51] & 0x1f; 183 props->max_vl_num = out_mad->data[37] >> 4; 184 props->init_type_reply = out_mad->data[41] >> 4; 185 186 out: 187 kfree(in_mad); 188 kfree(out_mad); 189 return err; 190 } 191 192 static int mthca_modify_device(struct ib_device *ibdev, 193 int mask, 194 struct ib_device_modify *props) 195 { 196 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 197 return -EOPNOTSUPP; 198 199 if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 200 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 201 return -ERESTARTSYS; 202 memcpy(ibdev->node_desc, props->node_desc, 64); 203 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 204 } 205 206 return 0; 207 } 208 209 static int mthca_modify_port(struct ib_device *ibdev, 210 u8 port, int port_modify_mask, 211 struct ib_port_modify *props) 212 { 213 struct mthca_set_ib_param set_ib; 214 struct ib_port_attr attr; 215 int err; 216 u8 status; 217 218 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 219 return -ERESTARTSYS; 220 221 err = mthca_query_port(ibdev, port, &attr); 222 if (err) 223 goto out; 224 225 set_ib.set_si_guid = 0; 226 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); 227 228 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 229 ~props->clr_port_cap_mask; 230 231 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status); 232 if (err) 233 goto out; 234 if (status) { 235 err = -EINVAL; 236 goto out; 237 } 238 239 out: 240 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 241 return err; 242 } 243 244 static int mthca_query_pkey(struct ib_device *ibdev, 245 u8 port, u16 index, u16 *pkey) 246 { 247 struct ib_smp *in_mad = NULL; 248 struct ib_smp *out_mad = NULL; 249 int err = -ENOMEM; 250 u8 status; 251 252 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 253 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 254 if (!in_mad || !out_mad) 255 goto out; 256 257 init_query_mad(in_mad); 258 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 259 in_mad->attr_mod = cpu_to_be32(index / 32); 260 261 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 262 port, NULL, NULL, in_mad, out_mad, 263 &status); 264 if (err) 265 goto out; 266 if (status) { 267 err = -EINVAL; 268 goto out; 269 } 270 271 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 272 273 out: 274 kfree(in_mad); 275 kfree(out_mad); 276 return err; 277 } 278 279 static int mthca_query_gid(struct ib_device *ibdev, u8 port, 280 int index, union ib_gid *gid) 281 { 282 struct ib_smp *in_mad = NULL; 283 struct ib_smp *out_mad = NULL; 284 int err = -ENOMEM; 285 u8 status; 286 287 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 288 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 289 if (!in_mad || !out_mad) 290 goto out; 291 292 init_query_mad(in_mad); 293 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 294 in_mad->attr_mod = cpu_to_be32(port); 295 296 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 297 port, NULL, NULL, in_mad, out_mad, 298 &status); 299 if (err) 300 goto out; 301 if (status) { 302 err = -EINVAL; 303 goto out; 304 } 305 306 memcpy(gid->raw, out_mad->data + 8, 8); 307 308 init_query_mad(in_mad); 309 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 310 in_mad->attr_mod = cpu_to_be32(index / 8); 311 312 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 313 port, NULL, NULL, in_mad, out_mad, 314 &status); 315 if (err) 316 goto out; 317 if (status) { 318 err = -EINVAL; 319 goto out; 320 } 321 322 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 323 324 out: 325 kfree(in_mad); 326 kfree(out_mad); 327 return err; 328 } 329 330 static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, 331 struct ib_udata *udata) 332 { 333 struct mthca_alloc_ucontext_resp uresp; 334 struct mthca_ucontext *context; 335 int err; 336 337 memset(&uresp, 0, sizeof uresp); 338 339 uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; 340 if (mthca_is_memfree(to_mdev(ibdev))) 341 uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; 342 else 343 uresp.uarc_size = 0; 344 345 context = kmalloc(sizeof *context, GFP_KERNEL); 346 if (!context) 347 return ERR_PTR(-ENOMEM); 348 349 err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); 350 if (err) { 351 kfree(context); 352 return ERR_PTR(err); 353 } 354 355 context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); 356 if (IS_ERR(context->db_tab)) { 357 err = PTR_ERR(context->db_tab); 358 mthca_uar_free(to_mdev(ibdev), &context->uar); 359 kfree(context); 360 return ERR_PTR(err); 361 } 362 363 if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { 364 mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); 365 mthca_uar_free(to_mdev(ibdev), &context->uar); 366 kfree(context); 367 return ERR_PTR(-EFAULT); 368 } 369 370 context->reg_mr_warned = 0; 371 372 return &context->ibucontext; 373 } 374 375 static int mthca_dealloc_ucontext(struct ib_ucontext *context) 376 { 377 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, 378 to_mucontext(context)->db_tab); 379 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); 380 kfree(to_mucontext(context)); 381 382 return 0; 383 } 384 385 static int mthca_mmap_uar(struct ib_ucontext *context, 386 struct vm_area_struct *vma) 387 { 388 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 389 return -EINVAL; 390 391 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 392 393 if (io_remap_pfn_range(vma, vma->vm_start, 394 to_mucontext(context)->uar.pfn, 395 PAGE_SIZE, vma->vm_page_prot)) 396 return -EAGAIN; 397 398 return 0; 399 } 400 401 static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, 402 struct ib_ucontext *context, 403 struct ib_udata *udata) 404 { 405 struct mthca_pd *pd; 406 int err; 407 408 pd = kmalloc(sizeof *pd, GFP_KERNEL); 409 if (!pd) 410 return ERR_PTR(-ENOMEM); 411 412 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); 413 if (err) { 414 kfree(pd); 415 return ERR_PTR(err); 416 } 417 418 if (context) { 419 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { 420 mthca_pd_free(to_mdev(ibdev), pd); 421 kfree(pd); 422 return ERR_PTR(-EFAULT); 423 } 424 } 425 426 return &pd->ibpd; 427 } 428 429 static int mthca_dealloc_pd(struct ib_pd *pd) 430 { 431 mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); 432 kfree(pd); 433 434 return 0; 435 } 436 437 static struct ib_ah *mthca_ah_create(struct ib_pd *pd, 438 struct ib_ah_attr *ah_attr) 439 { 440 int err; 441 struct mthca_ah *ah; 442 443 ah = kmalloc(sizeof *ah, GFP_ATOMIC); 444 if (!ah) 445 return ERR_PTR(-ENOMEM); 446 447 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); 448 if (err) { 449 kfree(ah); 450 return ERR_PTR(err); 451 } 452 453 return &ah->ibah; 454 } 455 456 static int mthca_ah_destroy(struct ib_ah *ah) 457 { 458 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); 459 kfree(ah); 460 461 return 0; 462 } 463 464 static struct ib_srq *mthca_create_srq(struct ib_pd *pd, 465 struct ib_srq_init_attr *init_attr, 466 struct ib_udata *udata) 467 { 468 struct mthca_create_srq ucmd; 469 struct mthca_ucontext *context = NULL; 470 struct mthca_srq *srq; 471 int err; 472 473 srq = kmalloc(sizeof *srq, GFP_KERNEL); 474 if (!srq) 475 return ERR_PTR(-ENOMEM); 476 477 if (pd->uobject) { 478 context = to_mucontext(pd->uobject->context); 479 480 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 481 err = -EFAULT; 482 goto err_free; 483 } 484 485 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 486 context->db_tab, ucmd.db_index, 487 ucmd.db_page); 488 489 if (err) 490 goto err_free; 491 492 srq->mr.ibmr.lkey = ucmd.lkey; 493 srq->db_index = ucmd.db_index; 494 } 495 496 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), 497 &init_attr->attr, srq); 498 499 if (err && pd->uobject) 500 mthca_unmap_user_db(to_mdev(pd->device), &context->uar, 501 context->db_tab, ucmd.db_index); 502 503 if (err) 504 goto err_free; 505 506 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { 507 mthca_free_srq(to_mdev(pd->device), srq); 508 err = -EFAULT; 509 goto err_free; 510 } 511 512 return &srq->ibsrq; 513 514 err_free: 515 kfree(srq); 516 517 return ERR_PTR(err); 518 } 519 520 static int mthca_destroy_srq(struct ib_srq *srq) 521 { 522 struct mthca_ucontext *context; 523 524 if (srq->uobject) { 525 context = to_mucontext(srq->uobject->context); 526 527 mthca_unmap_user_db(to_mdev(srq->device), &context->uar, 528 context->db_tab, to_msrq(srq)->db_index); 529 } 530 531 mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); 532 kfree(srq); 533 534 return 0; 535 } 536 537 static struct ib_qp *mthca_create_qp(struct ib_pd *pd, 538 struct ib_qp_init_attr *init_attr, 539 struct ib_udata *udata) 540 { 541 struct mthca_create_qp ucmd; 542 struct mthca_qp *qp; 543 int err; 544 545 if (init_attr->create_flags) 546 return ERR_PTR(-EINVAL); 547 548 switch (init_attr->qp_type) { 549 case IB_QPT_RC: 550 case IB_QPT_UC: 551 case IB_QPT_UD: 552 { 553 struct mthca_ucontext *context; 554 555 qp = kmalloc(sizeof *qp, GFP_KERNEL); 556 if (!qp) 557 return ERR_PTR(-ENOMEM); 558 559 if (pd->uobject) { 560 context = to_mucontext(pd->uobject->context); 561 562 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 563 kfree(qp); 564 return ERR_PTR(-EFAULT); 565 } 566 567 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 568 context->db_tab, 569 ucmd.sq_db_index, ucmd.sq_db_page); 570 if (err) { 571 kfree(qp); 572 return ERR_PTR(err); 573 } 574 575 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 576 context->db_tab, 577 ucmd.rq_db_index, ucmd.rq_db_page); 578 if (err) { 579 mthca_unmap_user_db(to_mdev(pd->device), 580 &context->uar, 581 context->db_tab, 582 ucmd.sq_db_index); 583 kfree(qp); 584 return ERR_PTR(err); 585 } 586 587 qp->mr.ibmr.lkey = ucmd.lkey; 588 qp->sq.db_index = ucmd.sq_db_index; 589 qp->rq.db_index = ucmd.rq_db_index; 590 } 591 592 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), 593 to_mcq(init_attr->send_cq), 594 to_mcq(init_attr->recv_cq), 595 init_attr->qp_type, init_attr->sq_sig_type, 596 &init_attr->cap, qp); 597 598 if (err && pd->uobject) { 599 context = to_mucontext(pd->uobject->context); 600 601 mthca_unmap_user_db(to_mdev(pd->device), 602 &context->uar, 603 context->db_tab, 604 ucmd.sq_db_index); 605 mthca_unmap_user_db(to_mdev(pd->device), 606 &context->uar, 607 context->db_tab, 608 ucmd.rq_db_index); 609 } 610 611 qp->ibqp.qp_num = qp->qpn; 612 break; 613 } 614 case IB_QPT_SMI: 615 case IB_QPT_GSI: 616 { 617 /* Don't allow userspace to create special QPs */ 618 if (pd->uobject) 619 return ERR_PTR(-EINVAL); 620 621 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); 622 if (!qp) 623 return ERR_PTR(-ENOMEM); 624 625 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; 626 627 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), 628 to_mcq(init_attr->send_cq), 629 to_mcq(init_attr->recv_cq), 630 init_attr->sq_sig_type, &init_attr->cap, 631 qp->ibqp.qp_num, init_attr->port_num, 632 to_msqp(qp)); 633 break; 634 } 635 default: 636 /* Don't support raw QPs */ 637 return ERR_PTR(-ENOSYS); 638 } 639 640 if (err) { 641 kfree(qp); 642 return ERR_PTR(err); 643 } 644 645 init_attr->cap.max_send_wr = qp->sq.max; 646 init_attr->cap.max_recv_wr = qp->rq.max; 647 init_attr->cap.max_send_sge = qp->sq.max_gs; 648 init_attr->cap.max_recv_sge = qp->rq.max_gs; 649 init_attr->cap.max_inline_data = qp->max_inline_data; 650 651 return &qp->ibqp; 652 } 653 654 static int mthca_destroy_qp(struct ib_qp *qp) 655 { 656 if (qp->uobject) { 657 mthca_unmap_user_db(to_mdev(qp->device), 658 &to_mucontext(qp->uobject->context)->uar, 659 to_mucontext(qp->uobject->context)->db_tab, 660 to_mqp(qp)->sq.db_index); 661 mthca_unmap_user_db(to_mdev(qp->device), 662 &to_mucontext(qp->uobject->context)->uar, 663 to_mucontext(qp->uobject->context)->db_tab, 664 to_mqp(qp)->rq.db_index); 665 } 666 mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); 667 kfree(qp); 668 return 0; 669 } 670 671 static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, 672 int comp_vector, 673 struct ib_ucontext *context, 674 struct ib_udata *udata) 675 { 676 struct mthca_create_cq ucmd; 677 struct mthca_cq *cq; 678 int nent; 679 int err; 680 681 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) 682 return ERR_PTR(-EINVAL); 683 684 if (context) { 685 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 686 return ERR_PTR(-EFAULT); 687 688 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 689 to_mucontext(context)->db_tab, 690 ucmd.set_db_index, ucmd.set_db_page); 691 if (err) 692 return ERR_PTR(err); 693 694 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 695 to_mucontext(context)->db_tab, 696 ucmd.arm_db_index, ucmd.arm_db_page); 697 if (err) 698 goto err_unmap_set; 699 } 700 701 cq = kmalloc(sizeof *cq, GFP_KERNEL); 702 if (!cq) { 703 err = -ENOMEM; 704 goto err_unmap_arm; 705 } 706 707 if (context) { 708 cq->buf.mr.ibmr.lkey = ucmd.lkey; 709 cq->set_ci_db_index = ucmd.set_db_index; 710 cq->arm_db_index = ucmd.arm_db_index; 711 } 712 713 for (nent = 1; nent <= entries; nent <<= 1) 714 ; /* nothing */ 715 716 err = mthca_init_cq(to_mdev(ibdev), nent, 717 context ? to_mucontext(context) : NULL, 718 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, 719 cq); 720 if (err) 721 goto err_free; 722 723 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { 724 mthca_free_cq(to_mdev(ibdev), cq); 725 goto err_free; 726 } 727 728 cq->resize_buf = NULL; 729 730 return &cq->ibcq; 731 732 err_free: 733 kfree(cq); 734 735 err_unmap_arm: 736 if (context) 737 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 738 to_mucontext(context)->db_tab, ucmd.arm_db_index); 739 740 err_unmap_set: 741 if (context) 742 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 743 to_mucontext(context)->db_tab, ucmd.set_db_index); 744 745 return ERR_PTR(err); 746 } 747 748 static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, 749 int entries) 750 { 751 int ret; 752 753 spin_lock_irq(&cq->lock); 754 if (cq->resize_buf) { 755 ret = -EBUSY; 756 goto unlock; 757 } 758 759 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); 760 if (!cq->resize_buf) { 761 ret = -ENOMEM; 762 goto unlock; 763 } 764 765 cq->resize_buf->state = CQ_RESIZE_ALLOC; 766 767 ret = 0; 768 769 unlock: 770 spin_unlock_irq(&cq->lock); 771 772 if (ret) 773 return ret; 774 775 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); 776 if (ret) { 777 spin_lock_irq(&cq->lock); 778 kfree(cq->resize_buf); 779 cq->resize_buf = NULL; 780 spin_unlock_irq(&cq->lock); 781 return ret; 782 } 783 784 cq->resize_buf->cqe = entries - 1; 785 786 spin_lock_irq(&cq->lock); 787 cq->resize_buf->state = CQ_RESIZE_READY; 788 spin_unlock_irq(&cq->lock); 789 790 return 0; 791 } 792 793 static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) 794 { 795 struct mthca_dev *dev = to_mdev(ibcq->device); 796 struct mthca_cq *cq = to_mcq(ibcq); 797 struct mthca_resize_cq ucmd; 798 u32 lkey; 799 u8 status; 800 int ret; 801 802 if (entries < 1 || entries > dev->limits.max_cqes) 803 return -EINVAL; 804 805 mutex_lock(&cq->mutex); 806 807 entries = roundup_pow_of_two(entries + 1); 808 if (entries == ibcq->cqe + 1) { 809 ret = 0; 810 goto out; 811 } 812 813 if (cq->is_kernel) { 814 ret = mthca_alloc_resize_buf(dev, cq, entries); 815 if (ret) 816 goto out; 817 lkey = cq->resize_buf->buf.mr.ibmr.lkey; 818 } else { 819 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 820 ret = -EFAULT; 821 goto out; 822 } 823 lkey = ucmd.lkey; 824 } 825 826 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries), &status); 827 if (status) 828 ret = -EINVAL; 829 830 if (ret) { 831 if (cq->resize_buf) { 832 mthca_free_cq_buf(dev, &cq->resize_buf->buf, 833 cq->resize_buf->cqe); 834 kfree(cq->resize_buf); 835 spin_lock_irq(&cq->lock); 836 cq->resize_buf = NULL; 837 spin_unlock_irq(&cq->lock); 838 } 839 goto out; 840 } 841 842 if (cq->is_kernel) { 843 struct mthca_cq_buf tbuf; 844 int tcqe; 845 846 spin_lock_irq(&cq->lock); 847 if (cq->resize_buf->state == CQ_RESIZE_READY) { 848 mthca_cq_resize_copy_cqes(cq); 849 tbuf = cq->buf; 850 tcqe = cq->ibcq.cqe; 851 cq->buf = cq->resize_buf->buf; 852 cq->ibcq.cqe = cq->resize_buf->cqe; 853 } else { 854 tbuf = cq->resize_buf->buf; 855 tcqe = cq->resize_buf->cqe; 856 } 857 858 kfree(cq->resize_buf); 859 cq->resize_buf = NULL; 860 spin_unlock_irq(&cq->lock); 861 862 mthca_free_cq_buf(dev, &tbuf, tcqe); 863 } else 864 ibcq->cqe = entries - 1; 865 866 out: 867 mutex_unlock(&cq->mutex); 868 869 return ret; 870 } 871 872 static int mthca_destroy_cq(struct ib_cq *cq) 873 { 874 if (cq->uobject) { 875 mthca_unmap_user_db(to_mdev(cq->device), 876 &to_mucontext(cq->uobject->context)->uar, 877 to_mucontext(cq->uobject->context)->db_tab, 878 to_mcq(cq)->arm_db_index); 879 mthca_unmap_user_db(to_mdev(cq->device), 880 &to_mucontext(cq->uobject->context)->uar, 881 to_mucontext(cq->uobject->context)->db_tab, 882 to_mcq(cq)->set_ci_db_index); 883 } 884 mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); 885 kfree(cq); 886 887 return 0; 888 } 889 890 static inline u32 convert_access(int acc) 891 { 892 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | 893 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | 894 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | 895 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | 896 MTHCA_MPT_FLAG_LOCAL_READ; 897 } 898 899 static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) 900 { 901 struct mthca_mr *mr; 902 int err; 903 904 mr = kmalloc(sizeof *mr, GFP_KERNEL); 905 if (!mr) 906 return ERR_PTR(-ENOMEM); 907 908 err = mthca_mr_alloc_notrans(to_mdev(pd->device), 909 to_mpd(pd)->pd_num, 910 convert_access(acc), mr); 911 912 if (err) { 913 kfree(mr); 914 return ERR_PTR(err); 915 } 916 917 mr->umem = NULL; 918 919 return &mr->ibmr; 920 } 921 922 static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, 923 struct ib_phys_buf *buffer_list, 924 int num_phys_buf, 925 int acc, 926 u64 *iova_start) 927 { 928 struct mthca_mr *mr; 929 u64 *page_list; 930 u64 total_size; 931 unsigned long mask; 932 int shift; 933 int npages; 934 int err; 935 int i, j, n; 936 937 mask = buffer_list[0].addr ^ *iova_start; 938 total_size = 0; 939 for (i = 0; i < num_phys_buf; ++i) { 940 if (i != 0) 941 mask |= buffer_list[i].addr; 942 if (i != num_phys_buf - 1) 943 mask |= buffer_list[i].addr + buffer_list[i].size; 944 945 total_size += buffer_list[i].size; 946 } 947 948 if (mask & ~PAGE_MASK) 949 return ERR_PTR(-EINVAL); 950 951 shift = __ffs(mask | 1 << 31); 952 953 buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); 954 buffer_list[0].addr &= ~0ull << shift; 955 956 mr = kmalloc(sizeof *mr, GFP_KERNEL); 957 if (!mr) 958 return ERR_PTR(-ENOMEM); 959 960 npages = 0; 961 for (i = 0; i < num_phys_buf; ++i) 962 npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 963 964 if (!npages) 965 return &mr->ibmr; 966 967 page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); 968 if (!page_list) { 969 kfree(mr); 970 return ERR_PTR(-ENOMEM); 971 } 972 973 n = 0; 974 for (i = 0; i < num_phys_buf; ++i) 975 for (j = 0; 976 j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 977 ++j) 978 page_list[n++] = buffer_list[i].addr + ((u64) j << shift); 979 980 mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " 981 "in PD %x; shift %d, npages %d.\n", 982 (unsigned long long) buffer_list[0].addr, 983 (unsigned long long) *iova_start, 984 to_mpd(pd)->pd_num, 985 shift, npages); 986 987 err = mthca_mr_alloc_phys(to_mdev(pd->device), 988 to_mpd(pd)->pd_num, 989 page_list, shift, npages, 990 *iova_start, total_size, 991 convert_access(acc), mr); 992 993 if (err) { 994 kfree(page_list); 995 kfree(mr); 996 return ERR_PTR(err); 997 } 998 999 kfree(page_list); 1000 mr->umem = NULL; 1001 1002 return &mr->ibmr; 1003 } 1004 1005 static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 1006 u64 virt, int acc, struct ib_udata *udata) 1007 { 1008 struct mthca_dev *dev = to_mdev(pd->device); 1009 struct ib_umem_chunk *chunk; 1010 struct mthca_mr *mr; 1011 struct mthca_reg_mr ucmd; 1012 u64 *pages; 1013 int shift, n, len; 1014 int i, j, k; 1015 int err = 0; 1016 int write_mtt_size; 1017 1018 if (udata->inlen - sizeof (struct ib_uverbs_cmd_hdr) < sizeof ucmd) { 1019 if (!to_mucontext(pd->uobject->context)->reg_mr_warned) { 1020 mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n", 1021 current->comm); 1022 mthca_warn(dev, " Update libmthca to fix this.\n"); 1023 } 1024 ++to_mucontext(pd->uobject->context)->reg_mr_warned; 1025 ucmd.mr_attrs = 0; 1026 } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 1027 return ERR_PTR(-EFAULT); 1028 1029 mr = kmalloc(sizeof *mr, GFP_KERNEL); 1030 if (!mr) 1031 return ERR_PTR(-ENOMEM); 1032 1033 mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, 1034 ucmd.mr_attrs & MTHCA_MR_DMASYNC); 1035 1036 if (IS_ERR(mr->umem)) { 1037 err = PTR_ERR(mr->umem); 1038 goto err; 1039 } 1040 1041 shift = ffs(mr->umem->page_size) - 1; 1042 1043 n = 0; 1044 list_for_each_entry(chunk, &mr->umem->chunk_list, list) 1045 n += chunk->nents; 1046 1047 mr->mtt = mthca_alloc_mtt(dev, n); 1048 if (IS_ERR(mr->mtt)) { 1049 err = PTR_ERR(mr->mtt); 1050 goto err_umem; 1051 } 1052 1053 pages = (u64 *) __get_free_page(GFP_KERNEL); 1054 if (!pages) { 1055 err = -ENOMEM; 1056 goto err_mtt; 1057 } 1058 1059 i = n = 0; 1060 1061 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); 1062 1063 list_for_each_entry(chunk, &mr->umem->chunk_list, list) 1064 for (j = 0; j < chunk->nmap; ++j) { 1065 len = sg_dma_len(&chunk->page_list[j]) >> shift; 1066 for (k = 0; k < len; ++k) { 1067 pages[i++] = sg_dma_address(&chunk->page_list[j]) + 1068 mr->umem->page_size * k; 1069 /* 1070 * Be friendly to write_mtt and pass it chunks 1071 * of appropriate size. 1072 */ 1073 if (i == write_mtt_size) { 1074 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1075 if (err) 1076 goto mtt_done; 1077 n += i; 1078 i = 0; 1079 } 1080 } 1081 } 1082 1083 if (i) 1084 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1085 mtt_done: 1086 free_page((unsigned long) pages); 1087 if (err) 1088 goto err_mtt; 1089 1090 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, 1091 convert_access(acc), mr); 1092 1093 if (err) 1094 goto err_mtt; 1095 1096 return &mr->ibmr; 1097 1098 err_mtt: 1099 mthca_free_mtt(dev, mr->mtt); 1100 1101 err_umem: 1102 ib_umem_release(mr->umem); 1103 1104 err: 1105 kfree(mr); 1106 return ERR_PTR(err); 1107 } 1108 1109 static int mthca_dereg_mr(struct ib_mr *mr) 1110 { 1111 struct mthca_mr *mmr = to_mmr(mr); 1112 1113 mthca_free_mr(to_mdev(mr->device), mmr); 1114 if (mmr->umem) 1115 ib_umem_release(mmr->umem); 1116 kfree(mmr); 1117 1118 return 0; 1119 } 1120 1121 static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, 1122 struct ib_fmr_attr *fmr_attr) 1123 { 1124 struct mthca_fmr *fmr; 1125 int err; 1126 1127 fmr = kmalloc(sizeof *fmr, GFP_KERNEL); 1128 if (!fmr) 1129 return ERR_PTR(-ENOMEM); 1130 1131 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); 1132 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, 1133 convert_access(mr_access_flags), fmr); 1134 1135 if (err) { 1136 kfree(fmr); 1137 return ERR_PTR(err); 1138 } 1139 1140 return &fmr->ibmr; 1141 } 1142 1143 static int mthca_dealloc_fmr(struct ib_fmr *fmr) 1144 { 1145 struct mthca_fmr *mfmr = to_mfmr(fmr); 1146 int err; 1147 1148 err = mthca_free_fmr(to_mdev(fmr->device), mfmr); 1149 if (err) 1150 return err; 1151 1152 kfree(mfmr); 1153 return 0; 1154 } 1155 1156 static int mthca_unmap_fmr(struct list_head *fmr_list) 1157 { 1158 struct ib_fmr *fmr; 1159 int err; 1160 u8 status; 1161 struct mthca_dev *mdev = NULL; 1162 1163 list_for_each_entry(fmr, fmr_list, list) { 1164 if (mdev && to_mdev(fmr->device) != mdev) 1165 return -EINVAL; 1166 mdev = to_mdev(fmr->device); 1167 } 1168 1169 if (!mdev) 1170 return 0; 1171 1172 if (mthca_is_memfree(mdev)) { 1173 list_for_each_entry(fmr, fmr_list, list) 1174 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); 1175 1176 wmb(); 1177 } else 1178 list_for_each_entry(fmr, fmr_list, list) 1179 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); 1180 1181 err = mthca_SYNC_TPT(mdev, &status); 1182 if (err) 1183 return err; 1184 if (status) 1185 return -EINVAL; 1186 return 0; 1187 } 1188 1189 static ssize_t show_rev(struct device *device, struct device_attribute *attr, 1190 char *buf) 1191 { 1192 struct mthca_dev *dev = 1193 container_of(device, struct mthca_dev, ib_dev.dev); 1194 return sprintf(buf, "%x\n", dev->rev_id); 1195 } 1196 1197 static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, 1198 char *buf) 1199 { 1200 struct mthca_dev *dev = 1201 container_of(device, struct mthca_dev, ib_dev.dev); 1202 return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32), 1203 (int) (dev->fw_ver >> 16) & 0xffff, 1204 (int) dev->fw_ver & 0xffff); 1205 } 1206 1207 static ssize_t show_hca(struct device *device, struct device_attribute *attr, 1208 char *buf) 1209 { 1210 struct mthca_dev *dev = 1211 container_of(device, struct mthca_dev, ib_dev.dev); 1212 switch (dev->pdev->device) { 1213 case PCI_DEVICE_ID_MELLANOX_TAVOR: 1214 return sprintf(buf, "MT23108\n"); 1215 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: 1216 return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); 1217 case PCI_DEVICE_ID_MELLANOX_ARBEL: 1218 return sprintf(buf, "MT25208\n"); 1219 case PCI_DEVICE_ID_MELLANOX_SINAI: 1220 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: 1221 return sprintf(buf, "MT25204\n"); 1222 default: 1223 return sprintf(buf, "unknown\n"); 1224 } 1225 } 1226 1227 static ssize_t show_board(struct device *device, struct device_attribute *attr, 1228 char *buf) 1229 { 1230 struct mthca_dev *dev = 1231 container_of(device, struct mthca_dev, ib_dev.dev); 1232 return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); 1233 } 1234 1235 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 1236 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 1237 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 1238 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 1239 1240 static struct device_attribute *mthca_dev_attributes[] = { 1241 &dev_attr_hw_rev, 1242 &dev_attr_fw_ver, 1243 &dev_attr_hca_type, 1244 &dev_attr_board_id 1245 }; 1246 1247 static int mthca_init_node_data(struct mthca_dev *dev) 1248 { 1249 struct ib_smp *in_mad = NULL; 1250 struct ib_smp *out_mad = NULL; 1251 int err = -ENOMEM; 1252 u8 status; 1253 1254 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1255 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1256 if (!in_mad || !out_mad) 1257 goto out; 1258 1259 init_query_mad(in_mad); 1260 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1261 1262 err = mthca_MAD_IFC(dev, 1, 1, 1263 1, NULL, NULL, in_mad, out_mad, 1264 &status); 1265 if (err) 1266 goto out; 1267 if (status) { 1268 err = -EINVAL; 1269 goto out; 1270 } 1271 1272 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 1273 1274 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1275 1276 err = mthca_MAD_IFC(dev, 1, 1, 1277 1, NULL, NULL, in_mad, out_mad, 1278 &status); 1279 if (err) 1280 goto out; 1281 if (status) { 1282 err = -EINVAL; 1283 goto out; 1284 } 1285 1286 if (mthca_is_memfree(dev)) 1287 dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 1288 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1289 1290 out: 1291 kfree(in_mad); 1292 kfree(out_mad); 1293 return err; 1294 } 1295 1296 int mthca_register_device(struct mthca_dev *dev) 1297 { 1298 int ret; 1299 int i; 1300 1301 ret = mthca_init_node_data(dev); 1302 if (ret) 1303 return ret; 1304 1305 strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); 1306 dev->ib_dev.owner = THIS_MODULE; 1307 1308 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; 1309 dev->ib_dev.uverbs_cmd_mask = 1310 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1311 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1312 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1313 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1314 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1315 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1316 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1317 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1318 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1319 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1320 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1321 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1322 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1323 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1324 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1325 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1326 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); 1327 dev->ib_dev.node_type = RDMA_NODE_IB_CA; 1328 dev->ib_dev.phys_port_cnt = dev->limits.num_ports; 1329 dev->ib_dev.num_comp_vectors = 1; 1330 dev->ib_dev.dma_device = &dev->pdev->dev; 1331 dev->ib_dev.query_device = mthca_query_device; 1332 dev->ib_dev.query_port = mthca_query_port; 1333 dev->ib_dev.modify_device = mthca_modify_device; 1334 dev->ib_dev.modify_port = mthca_modify_port; 1335 dev->ib_dev.query_pkey = mthca_query_pkey; 1336 dev->ib_dev.query_gid = mthca_query_gid; 1337 dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; 1338 dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; 1339 dev->ib_dev.mmap = mthca_mmap_uar; 1340 dev->ib_dev.alloc_pd = mthca_alloc_pd; 1341 dev->ib_dev.dealloc_pd = mthca_dealloc_pd; 1342 dev->ib_dev.create_ah = mthca_ah_create; 1343 dev->ib_dev.query_ah = mthca_ah_query; 1344 dev->ib_dev.destroy_ah = mthca_ah_destroy; 1345 1346 if (dev->mthca_flags & MTHCA_FLAG_SRQ) { 1347 dev->ib_dev.create_srq = mthca_create_srq; 1348 dev->ib_dev.modify_srq = mthca_modify_srq; 1349 dev->ib_dev.query_srq = mthca_query_srq; 1350 dev->ib_dev.destroy_srq = mthca_destroy_srq; 1351 dev->ib_dev.uverbs_cmd_mask |= 1352 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1353 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1354 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1355 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1356 1357 if (mthca_is_memfree(dev)) 1358 dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; 1359 else 1360 dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; 1361 } 1362 1363 dev->ib_dev.create_qp = mthca_create_qp; 1364 dev->ib_dev.modify_qp = mthca_modify_qp; 1365 dev->ib_dev.query_qp = mthca_query_qp; 1366 dev->ib_dev.destroy_qp = mthca_destroy_qp; 1367 dev->ib_dev.create_cq = mthca_create_cq; 1368 dev->ib_dev.resize_cq = mthca_resize_cq; 1369 dev->ib_dev.destroy_cq = mthca_destroy_cq; 1370 dev->ib_dev.poll_cq = mthca_poll_cq; 1371 dev->ib_dev.get_dma_mr = mthca_get_dma_mr; 1372 dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; 1373 dev->ib_dev.reg_user_mr = mthca_reg_user_mr; 1374 dev->ib_dev.dereg_mr = mthca_dereg_mr; 1375 1376 if (dev->mthca_flags & MTHCA_FLAG_FMR) { 1377 dev->ib_dev.alloc_fmr = mthca_alloc_fmr; 1378 dev->ib_dev.unmap_fmr = mthca_unmap_fmr; 1379 dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; 1380 if (mthca_is_memfree(dev)) 1381 dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; 1382 else 1383 dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; 1384 } 1385 1386 dev->ib_dev.attach_mcast = mthca_multicast_attach; 1387 dev->ib_dev.detach_mcast = mthca_multicast_detach; 1388 dev->ib_dev.process_mad = mthca_process_mad; 1389 1390 if (mthca_is_memfree(dev)) { 1391 dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; 1392 dev->ib_dev.post_send = mthca_arbel_post_send; 1393 dev->ib_dev.post_recv = mthca_arbel_post_receive; 1394 } else { 1395 dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; 1396 dev->ib_dev.post_send = mthca_tavor_post_send; 1397 dev->ib_dev.post_recv = mthca_tavor_post_receive; 1398 } 1399 1400 mutex_init(&dev->cap_mask_mutex); 1401 1402 ret = ib_register_device(&dev->ib_dev); 1403 if (ret) 1404 return ret; 1405 1406 for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) { 1407 ret = device_create_file(&dev->ib_dev.dev, 1408 mthca_dev_attributes[i]); 1409 if (ret) { 1410 ib_unregister_device(&dev->ib_dev); 1411 return ret; 1412 } 1413 } 1414 1415 mthca_start_catas_poll(dev); 1416 1417 return 0; 1418 } 1419 1420 void mthca_unregister_device(struct mthca_dev *dev) 1421 { 1422 mthca_stop_catas_poll(dev); 1423 ib_unregister_device(&dev->ib_dev); 1424 } 1425