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 "mthca_user.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_sge = mdev->limits.max_sg; 100 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; 101 props->max_cqe = mdev->limits.max_cqes; 102 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; 103 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; 104 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; 105 props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; 106 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 107 props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; 108 props->max_srq_wr = mdev->limits.max_srq_wqes; 109 props->max_srq_sge = mdev->limits.max_srq_sge; 110 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; 111 props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? 112 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 113 props->max_pkeys = mdev->limits.pkey_table_len; 114 props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; 115 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; 116 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 117 props->max_mcast_grp; 118 /* 119 * If Sinai memory key optimization is being used, then only 120 * the 8-bit key portion will change. For other HCAs, the 121 * unused index bits will also be used for FMR remapping. 122 */ 123 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 124 props->max_map_per_fmr = 255; 125 else 126 props->max_map_per_fmr = 127 (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1; 128 129 err = 0; 130 out: 131 kfree(in_mad); 132 kfree(out_mad); 133 return err; 134 } 135 136 static int mthca_query_port(struct ib_device *ibdev, 137 u8 port, struct ib_port_attr *props) 138 { 139 struct ib_smp *in_mad = NULL; 140 struct ib_smp *out_mad = NULL; 141 int err = -ENOMEM; 142 143 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 144 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 145 if (!in_mad || !out_mad) 146 goto out; 147 148 memset(props, 0, sizeof *props); 149 150 init_query_mad(in_mad); 151 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 152 in_mad->attr_mod = cpu_to_be32(port); 153 154 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 155 port, NULL, NULL, in_mad, out_mad); 156 if (err) 157 goto out; 158 159 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 160 props->lmc = out_mad->data[34] & 0x7; 161 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 162 props->sm_sl = out_mad->data[36] & 0xf; 163 props->state = out_mad->data[32] & 0xf; 164 props->phys_state = out_mad->data[33] >> 4; 165 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 166 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; 167 props->max_msg_sz = 0x80000000; 168 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; 169 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 170 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 171 props->active_width = out_mad->data[31] & 0xf; 172 props->active_speed = out_mad->data[35] >> 4; 173 props->max_mtu = out_mad->data[41] & 0xf; 174 props->active_mtu = out_mad->data[36] >> 4; 175 props->subnet_timeout = out_mad->data[51] & 0x1f; 176 props->max_vl_num = out_mad->data[37] >> 4; 177 props->init_type_reply = out_mad->data[41] >> 4; 178 179 out: 180 kfree(in_mad); 181 kfree(out_mad); 182 return err; 183 } 184 185 static int mthca_modify_device(struct ib_device *ibdev, 186 int mask, 187 struct ib_device_modify *props) 188 { 189 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 190 return -EOPNOTSUPP; 191 192 if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 193 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 194 return -ERESTARTSYS; 195 memcpy(ibdev->node_desc, props->node_desc, 64); 196 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 197 } 198 199 return 0; 200 } 201 202 static int mthca_modify_port(struct ib_device *ibdev, 203 u8 port, int port_modify_mask, 204 struct ib_port_modify *props) 205 { 206 struct mthca_set_ib_param set_ib; 207 struct ib_port_attr attr; 208 int err; 209 210 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 211 return -ERESTARTSYS; 212 213 err = mthca_query_port(ibdev, port, &attr); 214 if (err) 215 goto out; 216 217 set_ib.set_si_guid = 0; 218 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); 219 220 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 221 ~props->clr_port_cap_mask; 222 223 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port); 224 if (err) 225 goto out; 226 out: 227 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 228 return err; 229 } 230 231 static int mthca_query_pkey(struct ib_device *ibdev, 232 u8 port, u16 index, u16 *pkey) 233 { 234 struct ib_smp *in_mad = NULL; 235 struct ib_smp *out_mad = NULL; 236 int err = -ENOMEM; 237 238 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 239 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 240 if (!in_mad || !out_mad) 241 goto out; 242 243 init_query_mad(in_mad); 244 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 245 in_mad->attr_mod = cpu_to_be32(index / 32); 246 247 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 248 port, NULL, NULL, in_mad, out_mad); 249 if (err) 250 goto out; 251 252 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 253 254 out: 255 kfree(in_mad); 256 kfree(out_mad); 257 return err; 258 } 259 260 static int mthca_query_gid(struct ib_device *ibdev, u8 port, 261 int index, union ib_gid *gid) 262 { 263 struct ib_smp *in_mad = NULL; 264 struct ib_smp *out_mad = NULL; 265 int err = -ENOMEM; 266 267 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 268 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 269 if (!in_mad || !out_mad) 270 goto out; 271 272 init_query_mad(in_mad); 273 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 274 in_mad->attr_mod = cpu_to_be32(port); 275 276 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 277 port, NULL, NULL, in_mad, out_mad); 278 if (err) 279 goto out; 280 281 memcpy(gid->raw, out_mad->data + 8, 8); 282 283 init_query_mad(in_mad); 284 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 285 in_mad->attr_mod = cpu_to_be32(index / 8); 286 287 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 288 port, NULL, NULL, in_mad, out_mad); 289 if (err) 290 goto out; 291 292 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 293 294 out: 295 kfree(in_mad); 296 kfree(out_mad); 297 return err; 298 } 299 300 static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, 301 struct ib_udata *udata) 302 { 303 struct mthca_alloc_ucontext_resp uresp; 304 struct mthca_ucontext *context; 305 int err; 306 307 if (!(to_mdev(ibdev)->active)) 308 return ERR_PTR(-EAGAIN); 309 310 memset(&uresp, 0, sizeof uresp); 311 312 uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; 313 if (mthca_is_memfree(to_mdev(ibdev))) 314 uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; 315 else 316 uresp.uarc_size = 0; 317 318 context = kmalloc(sizeof *context, GFP_KERNEL); 319 if (!context) 320 return ERR_PTR(-ENOMEM); 321 322 err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); 323 if (err) { 324 kfree(context); 325 return ERR_PTR(err); 326 } 327 328 context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); 329 if (IS_ERR(context->db_tab)) { 330 err = PTR_ERR(context->db_tab); 331 mthca_uar_free(to_mdev(ibdev), &context->uar); 332 kfree(context); 333 return ERR_PTR(err); 334 } 335 336 if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { 337 mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); 338 mthca_uar_free(to_mdev(ibdev), &context->uar); 339 kfree(context); 340 return ERR_PTR(-EFAULT); 341 } 342 343 context->reg_mr_warned = 0; 344 345 return &context->ibucontext; 346 } 347 348 static int mthca_dealloc_ucontext(struct ib_ucontext *context) 349 { 350 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, 351 to_mucontext(context)->db_tab); 352 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); 353 kfree(to_mucontext(context)); 354 355 return 0; 356 } 357 358 static int mthca_mmap_uar(struct ib_ucontext *context, 359 struct vm_area_struct *vma) 360 { 361 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 362 return -EINVAL; 363 364 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 365 366 if (io_remap_pfn_range(vma, vma->vm_start, 367 to_mucontext(context)->uar.pfn, 368 PAGE_SIZE, vma->vm_page_prot)) 369 return -EAGAIN; 370 371 return 0; 372 } 373 374 static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, 375 struct ib_ucontext *context, 376 struct ib_udata *udata) 377 { 378 struct mthca_pd *pd; 379 int err; 380 381 pd = kmalloc(sizeof *pd, GFP_KERNEL); 382 if (!pd) 383 return ERR_PTR(-ENOMEM); 384 385 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); 386 if (err) { 387 kfree(pd); 388 return ERR_PTR(err); 389 } 390 391 if (context) { 392 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { 393 mthca_pd_free(to_mdev(ibdev), pd); 394 kfree(pd); 395 return ERR_PTR(-EFAULT); 396 } 397 } 398 399 return &pd->ibpd; 400 } 401 402 static int mthca_dealloc_pd(struct ib_pd *pd) 403 { 404 mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); 405 kfree(pd); 406 407 return 0; 408 } 409 410 static struct ib_ah *mthca_ah_create(struct ib_pd *pd, 411 struct ib_ah_attr *ah_attr) 412 { 413 int err; 414 struct mthca_ah *ah; 415 416 ah = kmalloc(sizeof *ah, GFP_ATOMIC); 417 if (!ah) 418 return ERR_PTR(-ENOMEM); 419 420 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); 421 if (err) { 422 kfree(ah); 423 return ERR_PTR(err); 424 } 425 426 return &ah->ibah; 427 } 428 429 static int mthca_ah_destroy(struct ib_ah *ah) 430 { 431 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); 432 kfree(ah); 433 434 return 0; 435 } 436 437 static struct ib_srq *mthca_create_srq(struct ib_pd *pd, 438 struct ib_srq_init_attr *init_attr, 439 struct ib_udata *udata) 440 { 441 struct mthca_create_srq ucmd; 442 struct mthca_ucontext *context = NULL; 443 struct mthca_srq *srq; 444 int err; 445 446 if (init_attr->srq_type != IB_SRQT_BASIC) 447 return ERR_PTR(-ENOSYS); 448 449 srq = kmalloc(sizeof *srq, GFP_KERNEL); 450 if (!srq) 451 return ERR_PTR(-ENOMEM); 452 453 if (pd->uobject) { 454 context = to_mucontext(pd->uobject->context); 455 456 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 457 err = -EFAULT; 458 goto err_free; 459 } 460 461 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 462 context->db_tab, ucmd.db_index, 463 ucmd.db_page); 464 465 if (err) 466 goto err_free; 467 468 srq->mr.ibmr.lkey = ucmd.lkey; 469 srq->db_index = ucmd.db_index; 470 } 471 472 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), 473 &init_attr->attr, srq); 474 475 if (err && pd->uobject) 476 mthca_unmap_user_db(to_mdev(pd->device), &context->uar, 477 context->db_tab, ucmd.db_index); 478 479 if (err) 480 goto err_free; 481 482 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { 483 mthca_free_srq(to_mdev(pd->device), srq); 484 err = -EFAULT; 485 goto err_free; 486 } 487 488 return &srq->ibsrq; 489 490 err_free: 491 kfree(srq); 492 493 return ERR_PTR(err); 494 } 495 496 static int mthca_destroy_srq(struct ib_srq *srq) 497 { 498 struct mthca_ucontext *context; 499 500 if (srq->uobject) { 501 context = to_mucontext(srq->uobject->context); 502 503 mthca_unmap_user_db(to_mdev(srq->device), &context->uar, 504 context->db_tab, to_msrq(srq)->db_index); 505 } 506 507 mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); 508 kfree(srq); 509 510 return 0; 511 } 512 513 static struct ib_qp *mthca_create_qp(struct ib_pd *pd, 514 struct ib_qp_init_attr *init_attr, 515 struct ib_udata *udata) 516 { 517 struct mthca_create_qp ucmd; 518 struct mthca_qp *qp; 519 int err; 520 521 if (init_attr->create_flags) 522 return ERR_PTR(-EINVAL); 523 524 switch (init_attr->qp_type) { 525 case IB_QPT_RC: 526 case IB_QPT_UC: 527 case IB_QPT_UD: 528 { 529 struct mthca_ucontext *context; 530 531 qp = kmalloc(sizeof *qp, GFP_KERNEL); 532 if (!qp) 533 return ERR_PTR(-ENOMEM); 534 535 if (pd->uobject) { 536 context = to_mucontext(pd->uobject->context); 537 538 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 539 kfree(qp); 540 return ERR_PTR(-EFAULT); 541 } 542 543 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 544 context->db_tab, 545 ucmd.sq_db_index, ucmd.sq_db_page); 546 if (err) { 547 kfree(qp); 548 return ERR_PTR(err); 549 } 550 551 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 552 context->db_tab, 553 ucmd.rq_db_index, ucmd.rq_db_page); 554 if (err) { 555 mthca_unmap_user_db(to_mdev(pd->device), 556 &context->uar, 557 context->db_tab, 558 ucmd.sq_db_index); 559 kfree(qp); 560 return ERR_PTR(err); 561 } 562 563 qp->mr.ibmr.lkey = ucmd.lkey; 564 qp->sq.db_index = ucmd.sq_db_index; 565 qp->rq.db_index = ucmd.rq_db_index; 566 } 567 568 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), 569 to_mcq(init_attr->send_cq), 570 to_mcq(init_attr->recv_cq), 571 init_attr->qp_type, init_attr->sq_sig_type, 572 &init_attr->cap, qp); 573 574 if (err && pd->uobject) { 575 context = to_mucontext(pd->uobject->context); 576 577 mthca_unmap_user_db(to_mdev(pd->device), 578 &context->uar, 579 context->db_tab, 580 ucmd.sq_db_index); 581 mthca_unmap_user_db(to_mdev(pd->device), 582 &context->uar, 583 context->db_tab, 584 ucmd.rq_db_index); 585 } 586 587 qp->ibqp.qp_num = qp->qpn; 588 break; 589 } 590 case IB_QPT_SMI: 591 case IB_QPT_GSI: 592 { 593 /* Don't allow userspace to create special QPs */ 594 if (pd->uobject) 595 return ERR_PTR(-EINVAL); 596 597 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); 598 if (!qp) 599 return ERR_PTR(-ENOMEM); 600 601 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; 602 603 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), 604 to_mcq(init_attr->send_cq), 605 to_mcq(init_attr->recv_cq), 606 init_attr->sq_sig_type, &init_attr->cap, 607 qp->ibqp.qp_num, init_attr->port_num, 608 to_msqp(qp)); 609 break; 610 } 611 default: 612 /* Don't support raw QPs */ 613 return ERR_PTR(-ENOSYS); 614 } 615 616 if (err) { 617 kfree(qp); 618 return ERR_PTR(err); 619 } 620 621 init_attr->cap.max_send_wr = qp->sq.max; 622 init_attr->cap.max_recv_wr = qp->rq.max; 623 init_attr->cap.max_send_sge = qp->sq.max_gs; 624 init_attr->cap.max_recv_sge = qp->rq.max_gs; 625 init_attr->cap.max_inline_data = qp->max_inline_data; 626 627 return &qp->ibqp; 628 } 629 630 static int mthca_destroy_qp(struct ib_qp *qp) 631 { 632 if (qp->uobject) { 633 mthca_unmap_user_db(to_mdev(qp->device), 634 &to_mucontext(qp->uobject->context)->uar, 635 to_mucontext(qp->uobject->context)->db_tab, 636 to_mqp(qp)->sq.db_index); 637 mthca_unmap_user_db(to_mdev(qp->device), 638 &to_mucontext(qp->uobject->context)->uar, 639 to_mucontext(qp->uobject->context)->db_tab, 640 to_mqp(qp)->rq.db_index); 641 } 642 mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); 643 kfree(qp); 644 return 0; 645 } 646 647 static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, 648 const struct ib_cq_init_attr *attr, 649 struct ib_ucontext *context, 650 struct ib_udata *udata) 651 { 652 int entries = attr->cqe; 653 struct mthca_create_cq ucmd; 654 struct mthca_cq *cq; 655 int nent; 656 int err; 657 658 if (attr->flags) 659 return ERR_PTR(-EINVAL); 660 661 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) 662 return ERR_PTR(-EINVAL); 663 664 if (context) { 665 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 666 return ERR_PTR(-EFAULT); 667 668 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 669 to_mucontext(context)->db_tab, 670 ucmd.set_db_index, ucmd.set_db_page); 671 if (err) 672 return ERR_PTR(err); 673 674 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 675 to_mucontext(context)->db_tab, 676 ucmd.arm_db_index, ucmd.arm_db_page); 677 if (err) 678 goto err_unmap_set; 679 } 680 681 cq = kmalloc(sizeof *cq, GFP_KERNEL); 682 if (!cq) { 683 err = -ENOMEM; 684 goto err_unmap_arm; 685 } 686 687 if (context) { 688 cq->buf.mr.ibmr.lkey = ucmd.lkey; 689 cq->set_ci_db_index = ucmd.set_db_index; 690 cq->arm_db_index = ucmd.arm_db_index; 691 } 692 693 for (nent = 1; nent <= entries; nent <<= 1) 694 ; /* nothing */ 695 696 err = mthca_init_cq(to_mdev(ibdev), nent, 697 context ? to_mucontext(context) : NULL, 698 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, 699 cq); 700 if (err) 701 goto err_free; 702 703 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { 704 mthca_free_cq(to_mdev(ibdev), cq); 705 err = -EFAULT; 706 goto err_free; 707 } 708 709 cq->resize_buf = NULL; 710 711 return &cq->ibcq; 712 713 err_free: 714 kfree(cq); 715 716 err_unmap_arm: 717 if (context) 718 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 719 to_mucontext(context)->db_tab, ucmd.arm_db_index); 720 721 err_unmap_set: 722 if (context) 723 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 724 to_mucontext(context)->db_tab, ucmd.set_db_index); 725 726 return ERR_PTR(err); 727 } 728 729 static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, 730 int entries) 731 { 732 int ret; 733 734 spin_lock_irq(&cq->lock); 735 if (cq->resize_buf) { 736 ret = -EBUSY; 737 goto unlock; 738 } 739 740 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); 741 if (!cq->resize_buf) { 742 ret = -ENOMEM; 743 goto unlock; 744 } 745 746 cq->resize_buf->state = CQ_RESIZE_ALLOC; 747 748 ret = 0; 749 750 unlock: 751 spin_unlock_irq(&cq->lock); 752 753 if (ret) 754 return ret; 755 756 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); 757 if (ret) { 758 spin_lock_irq(&cq->lock); 759 kfree(cq->resize_buf); 760 cq->resize_buf = NULL; 761 spin_unlock_irq(&cq->lock); 762 return ret; 763 } 764 765 cq->resize_buf->cqe = entries - 1; 766 767 spin_lock_irq(&cq->lock); 768 cq->resize_buf->state = CQ_RESIZE_READY; 769 spin_unlock_irq(&cq->lock); 770 771 return 0; 772 } 773 774 static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) 775 { 776 struct mthca_dev *dev = to_mdev(ibcq->device); 777 struct mthca_cq *cq = to_mcq(ibcq); 778 struct mthca_resize_cq ucmd; 779 u32 lkey; 780 int ret; 781 782 if (entries < 1 || entries > dev->limits.max_cqes) 783 return -EINVAL; 784 785 mutex_lock(&cq->mutex); 786 787 entries = roundup_pow_of_two(entries + 1); 788 if (entries == ibcq->cqe + 1) { 789 ret = 0; 790 goto out; 791 } 792 793 if (cq->is_kernel) { 794 ret = mthca_alloc_resize_buf(dev, cq, entries); 795 if (ret) 796 goto out; 797 lkey = cq->resize_buf->buf.mr.ibmr.lkey; 798 } else { 799 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 800 ret = -EFAULT; 801 goto out; 802 } 803 lkey = ucmd.lkey; 804 } 805 806 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries)); 807 808 if (ret) { 809 if (cq->resize_buf) { 810 mthca_free_cq_buf(dev, &cq->resize_buf->buf, 811 cq->resize_buf->cqe); 812 kfree(cq->resize_buf); 813 spin_lock_irq(&cq->lock); 814 cq->resize_buf = NULL; 815 spin_unlock_irq(&cq->lock); 816 } 817 goto out; 818 } 819 820 if (cq->is_kernel) { 821 struct mthca_cq_buf tbuf; 822 int tcqe; 823 824 spin_lock_irq(&cq->lock); 825 if (cq->resize_buf->state == CQ_RESIZE_READY) { 826 mthca_cq_resize_copy_cqes(cq); 827 tbuf = cq->buf; 828 tcqe = cq->ibcq.cqe; 829 cq->buf = cq->resize_buf->buf; 830 cq->ibcq.cqe = cq->resize_buf->cqe; 831 } else { 832 tbuf = cq->resize_buf->buf; 833 tcqe = cq->resize_buf->cqe; 834 } 835 836 kfree(cq->resize_buf); 837 cq->resize_buf = NULL; 838 spin_unlock_irq(&cq->lock); 839 840 mthca_free_cq_buf(dev, &tbuf, tcqe); 841 } else 842 ibcq->cqe = entries - 1; 843 844 out: 845 mutex_unlock(&cq->mutex); 846 847 return ret; 848 } 849 850 static int mthca_destroy_cq(struct ib_cq *cq) 851 { 852 if (cq->uobject) { 853 mthca_unmap_user_db(to_mdev(cq->device), 854 &to_mucontext(cq->uobject->context)->uar, 855 to_mucontext(cq->uobject->context)->db_tab, 856 to_mcq(cq)->arm_db_index); 857 mthca_unmap_user_db(to_mdev(cq->device), 858 &to_mucontext(cq->uobject->context)->uar, 859 to_mucontext(cq->uobject->context)->db_tab, 860 to_mcq(cq)->set_ci_db_index); 861 } 862 mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); 863 kfree(cq); 864 865 return 0; 866 } 867 868 static inline u32 convert_access(int acc) 869 { 870 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | 871 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | 872 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | 873 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | 874 MTHCA_MPT_FLAG_LOCAL_READ; 875 } 876 877 static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) 878 { 879 struct mthca_mr *mr; 880 int err; 881 882 mr = kmalloc(sizeof *mr, GFP_KERNEL); 883 if (!mr) 884 return ERR_PTR(-ENOMEM); 885 886 err = mthca_mr_alloc_notrans(to_mdev(pd->device), 887 to_mpd(pd)->pd_num, 888 convert_access(acc), mr); 889 890 if (err) { 891 kfree(mr); 892 return ERR_PTR(err); 893 } 894 895 mr->umem = NULL; 896 897 return &mr->ibmr; 898 } 899 900 static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, 901 struct ib_phys_buf *buffer_list, 902 int num_phys_buf, 903 int acc, 904 u64 *iova_start) 905 { 906 struct mthca_mr *mr; 907 u64 *page_list; 908 u64 total_size; 909 unsigned long mask; 910 int shift; 911 int npages; 912 int err; 913 int i, j, n; 914 915 mask = buffer_list[0].addr ^ *iova_start; 916 total_size = 0; 917 for (i = 0; i < num_phys_buf; ++i) { 918 if (i != 0) 919 mask |= buffer_list[i].addr; 920 if (i != num_phys_buf - 1) 921 mask |= buffer_list[i].addr + buffer_list[i].size; 922 923 total_size += buffer_list[i].size; 924 } 925 926 if (mask & ~PAGE_MASK) 927 return ERR_PTR(-EINVAL); 928 929 shift = __ffs(mask | 1 << 31); 930 931 buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); 932 buffer_list[0].addr &= ~0ull << shift; 933 934 mr = kmalloc(sizeof *mr, GFP_KERNEL); 935 if (!mr) 936 return ERR_PTR(-ENOMEM); 937 938 npages = 0; 939 for (i = 0; i < num_phys_buf; ++i) 940 npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 941 942 if (!npages) 943 return &mr->ibmr; 944 945 page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); 946 if (!page_list) { 947 kfree(mr); 948 return ERR_PTR(-ENOMEM); 949 } 950 951 n = 0; 952 for (i = 0; i < num_phys_buf; ++i) 953 for (j = 0; 954 j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 955 ++j) 956 page_list[n++] = buffer_list[i].addr + ((u64) j << shift); 957 958 mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " 959 "in PD %x; shift %d, npages %d.\n", 960 (unsigned long long) buffer_list[0].addr, 961 (unsigned long long) *iova_start, 962 to_mpd(pd)->pd_num, 963 shift, npages); 964 965 err = mthca_mr_alloc_phys(to_mdev(pd->device), 966 to_mpd(pd)->pd_num, 967 page_list, shift, npages, 968 *iova_start, total_size, 969 convert_access(acc), mr); 970 971 if (err) { 972 kfree(page_list); 973 kfree(mr); 974 return ERR_PTR(err); 975 } 976 977 kfree(page_list); 978 mr->umem = NULL; 979 980 return &mr->ibmr; 981 } 982 983 static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 984 u64 virt, int acc, struct ib_udata *udata) 985 { 986 struct mthca_dev *dev = to_mdev(pd->device); 987 struct scatterlist *sg; 988 struct mthca_mr *mr; 989 struct mthca_reg_mr ucmd; 990 u64 *pages; 991 int shift, n, len; 992 int i, k, entry; 993 int err = 0; 994 int write_mtt_size; 995 996 if (udata->inlen - sizeof (struct ib_uverbs_cmd_hdr) < sizeof ucmd) { 997 if (!to_mucontext(pd->uobject->context)->reg_mr_warned) { 998 mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n", 999 current->comm); 1000 mthca_warn(dev, " Update libmthca to fix this.\n"); 1001 } 1002 ++to_mucontext(pd->uobject->context)->reg_mr_warned; 1003 ucmd.mr_attrs = 0; 1004 } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 1005 return ERR_PTR(-EFAULT); 1006 1007 mr = kmalloc(sizeof *mr, GFP_KERNEL); 1008 if (!mr) 1009 return ERR_PTR(-ENOMEM); 1010 1011 mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, 1012 ucmd.mr_attrs & MTHCA_MR_DMASYNC); 1013 1014 if (IS_ERR(mr->umem)) { 1015 err = PTR_ERR(mr->umem); 1016 goto err; 1017 } 1018 1019 shift = ffs(mr->umem->page_size) - 1; 1020 n = mr->umem->nmap; 1021 1022 mr->mtt = mthca_alloc_mtt(dev, n); 1023 if (IS_ERR(mr->mtt)) { 1024 err = PTR_ERR(mr->mtt); 1025 goto err_umem; 1026 } 1027 1028 pages = (u64 *) __get_free_page(GFP_KERNEL); 1029 if (!pages) { 1030 err = -ENOMEM; 1031 goto err_mtt; 1032 } 1033 1034 i = n = 0; 1035 1036 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); 1037 1038 for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) { 1039 len = sg_dma_len(sg) >> shift; 1040 for (k = 0; k < len; ++k) { 1041 pages[i++] = sg_dma_address(sg) + 1042 mr->umem->page_size * k; 1043 /* 1044 * Be friendly to write_mtt and pass it chunks 1045 * of appropriate size. 1046 */ 1047 if (i == write_mtt_size) { 1048 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1049 if (err) 1050 goto mtt_done; 1051 n += i; 1052 i = 0; 1053 } 1054 } 1055 } 1056 1057 if (i) 1058 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1059 mtt_done: 1060 free_page((unsigned long) pages); 1061 if (err) 1062 goto err_mtt; 1063 1064 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, 1065 convert_access(acc), mr); 1066 1067 if (err) 1068 goto err_mtt; 1069 1070 return &mr->ibmr; 1071 1072 err_mtt: 1073 mthca_free_mtt(dev, mr->mtt); 1074 1075 err_umem: 1076 ib_umem_release(mr->umem); 1077 1078 err: 1079 kfree(mr); 1080 return ERR_PTR(err); 1081 } 1082 1083 static int mthca_dereg_mr(struct ib_mr *mr) 1084 { 1085 struct mthca_mr *mmr = to_mmr(mr); 1086 1087 mthca_free_mr(to_mdev(mr->device), mmr); 1088 if (mmr->umem) 1089 ib_umem_release(mmr->umem); 1090 kfree(mmr); 1091 1092 return 0; 1093 } 1094 1095 static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, 1096 struct ib_fmr_attr *fmr_attr) 1097 { 1098 struct mthca_fmr *fmr; 1099 int err; 1100 1101 fmr = kmalloc(sizeof *fmr, GFP_KERNEL); 1102 if (!fmr) 1103 return ERR_PTR(-ENOMEM); 1104 1105 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); 1106 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, 1107 convert_access(mr_access_flags), fmr); 1108 1109 if (err) { 1110 kfree(fmr); 1111 return ERR_PTR(err); 1112 } 1113 1114 return &fmr->ibmr; 1115 } 1116 1117 static int mthca_dealloc_fmr(struct ib_fmr *fmr) 1118 { 1119 struct mthca_fmr *mfmr = to_mfmr(fmr); 1120 int err; 1121 1122 err = mthca_free_fmr(to_mdev(fmr->device), mfmr); 1123 if (err) 1124 return err; 1125 1126 kfree(mfmr); 1127 return 0; 1128 } 1129 1130 static int mthca_unmap_fmr(struct list_head *fmr_list) 1131 { 1132 struct ib_fmr *fmr; 1133 int err; 1134 struct mthca_dev *mdev = NULL; 1135 1136 list_for_each_entry(fmr, fmr_list, list) { 1137 if (mdev && to_mdev(fmr->device) != mdev) 1138 return -EINVAL; 1139 mdev = to_mdev(fmr->device); 1140 } 1141 1142 if (!mdev) 1143 return 0; 1144 1145 if (mthca_is_memfree(mdev)) { 1146 list_for_each_entry(fmr, fmr_list, list) 1147 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); 1148 1149 wmb(); 1150 } else 1151 list_for_each_entry(fmr, fmr_list, list) 1152 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); 1153 1154 err = mthca_SYNC_TPT(mdev); 1155 return err; 1156 } 1157 1158 static ssize_t show_rev(struct device *device, struct device_attribute *attr, 1159 char *buf) 1160 { 1161 struct mthca_dev *dev = 1162 container_of(device, struct mthca_dev, ib_dev.dev); 1163 return sprintf(buf, "%x\n", dev->rev_id); 1164 } 1165 1166 static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, 1167 char *buf) 1168 { 1169 struct mthca_dev *dev = 1170 container_of(device, struct mthca_dev, ib_dev.dev); 1171 return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32), 1172 (int) (dev->fw_ver >> 16) & 0xffff, 1173 (int) dev->fw_ver & 0xffff); 1174 } 1175 1176 static ssize_t show_hca(struct device *device, struct device_attribute *attr, 1177 char *buf) 1178 { 1179 struct mthca_dev *dev = 1180 container_of(device, struct mthca_dev, ib_dev.dev); 1181 switch (dev->pdev->device) { 1182 case PCI_DEVICE_ID_MELLANOX_TAVOR: 1183 return sprintf(buf, "MT23108\n"); 1184 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: 1185 return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); 1186 case PCI_DEVICE_ID_MELLANOX_ARBEL: 1187 return sprintf(buf, "MT25208\n"); 1188 case PCI_DEVICE_ID_MELLANOX_SINAI: 1189 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: 1190 return sprintf(buf, "MT25204\n"); 1191 default: 1192 return sprintf(buf, "unknown\n"); 1193 } 1194 } 1195 1196 static ssize_t show_board(struct device *device, struct device_attribute *attr, 1197 char *buf) 1198 { 1199 struct mthca_dev *dev = 1200 container_of(device, struct mthca_dev, ib_dev.dev); 1201 return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); 1202 } 1203 1204 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 1205 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 1206 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 1207 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 1208 1209 static struct device_attribute *mthca_dev_attributes[] = { 1210 &dev_attr_hw_rev, 1211 &dev_attr_fw_ver, 1212 &dev_attr_hca_type, 1213 &dev_attr_board_id 1214 }; 1215 1216 static int mthca_init_node_data(struct mthca_dev *dev) 1217 { 1218 struct ib_smp *in_mad = NULL; 1219 struct ib_smp *out_mad = NULL; 1220 int err = -ENOMEM; 1221 1222 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1223 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1224 if (!in_mad || !out_mad) 1225 goto out; 1226 1227 init_query_mad(in_mad); 1228 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1229 1230 err = mthca_MAD_IFC(dev, 1, 1, 1231 1, NULL, NULL, in_mad, out_mad); 1232 if (err) 1233 goto out; 1234 1235 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 1236 1237 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1238 1239 err = mthca_MAD_IFC(dev, 1, 1, 1240 1, NULL, NULL, in_mad, out_mad); 1241 if (err) 1242 goto out; 1243 1244 if (mthca_is_memfree(dev)) 1245 dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 1246 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1247 1248 out: 1249 kfree(in_mad); 1250 kfree(out_mad); 1251 return err; 1252 } 1253 1254 static int mthca_port_immutable(struct ib_device *ibdev, u8 port_num, 1255 struct ib_port_immutable *immutable) 1256 { 1257 struct ib_port_attr attr; 1258 int err; 1259 1260 err = mthca_query_port(ibdev, port_num, &attr); 1261 if (err) 1262 return err; 1263 1264 immutable->pkey_tbl_len = attr.pkey_tbl_len; 1265 immutable->gid_tbl_len = attr.gid_tbl_len; 1266 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB; 1267 immutable->max_mad_size = IB_MGMT_MAD_SIZE; 1268 1269 return 0; 1270 } 1271 1272 int mthca_register_device(struct mthca_dev *dev) 1273 { 1274 int ret; 1275 int i; 1276 1277 ret = mthca_init_node_data(dev); 1278 if (ret) 1279 return ret; 1280 1281 strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); 1282 dev->ib_dev.owner = THIS_MODULE; 1283 1284 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; 1285 dev->ib_dev.uverbs_cmd_mask = 1286 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1287 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1288 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1289 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1290 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1291 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1292 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1293 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1294 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1295 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1296 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1297 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1298 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1299 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1300 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1301 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1302 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); 1303 dev->ib_dev.node_type = RDMA_NODE_IB_CA; 1304 dev->ib_dev.phys_port_cnt = dev->limits.num_ports; 1305 dev->ib_dev.num_comp_vectors = 1; 1306 dev->ib_dev.dma_device = &dev->pdev->dev; 1307 dev->ib_dev.query_device = mthca_query_device; 1308 dev->ib_dev.query_port = mthca_query_port; 1309 dev->ib_dev.modify_device = mthca_modify_device; 1310 dev->ib_dev.modify_port = mthca_modify_port; 1311 dev->ib_dev.query_pkey = mthca_query_pkey; 1312 dev->ib_dev.query_gid = mthca_query_gid; 1313 dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; 1314 dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; 1315 dev->ib_dev.mmap = mthca_mmap_uar; 1316 dev->ib_dev.alloc_pd = mthca_alloc_pd; 1317 dev->ib_dev.dealloc_pd = mthca_dealloc_pd; 1318 dev->ib_dev.create_ah = mthca_ah_create; 1319 dev->ib_dev.query_ah = mthca_ah_query; 1320 dev->ib_dev.destroy_ah = mthca_ah_destroy; 1321 1322 if (dev->mthca_flags & MTHCA_FLAG_SRQ) { 1323 dev->ib_dev.create_srq = mthca_create_srq; 1324 dev->ib_dev.modify_srq = mthca_modify_srq; 1325 dev->ib_dev.query_srq = mthca_query_srq; 1326 dev->ib_dev.destroy_srq = mthca_destroy_srq; 1327 dev->ib_dev.uverbs_cmd_mask |= 1328 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1329 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1330 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1331 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1332 1333 if (mthca_is_memfree(dev)) 1334 dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; 1335 else 1336 dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; 1337 } 1338 1339 dev->ib_dev.create_qp = mthca_create_qp; 1340 dev->ib_dev.modify_qp = mthca_modify_qp; 1341 dev->ib_dev.query_qp = mthca_query_qp; 1342 dev->ib_dev.destroy_qp = mthca_destroy_qp; 1343 dev->ib_dev.create_cq = mthca_create_cq; 1344 dev->ib_dev.resize_cq = mthca_resize_cq; 1345 dev->ib_dev.destroy_cq = mthca_destroy_cq; 1346 dev->ib_dev.poll_cq = mthca_poll_cq; 1347 dev->ib_dev.get_dma_mr = mthca_get_dma_mr; 1348 dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; 1349 dev->ib_dev.reg_user_mr = mthca_reg_user_mr; 1350 dev->ib_dev.dereg_mr = mthca_dereg_mr; 1351 dev->ib_dev.get_port_immutable = mthca_port_immutable; 1352 1353 if (dev->mthca_flags & MTHCA_FLAG_FMR) { 1354 dev->ib_dev.alloc_fmr = mthca_alloc_fmr; 1355 dev->ib_dev.unmap_fmr = mthca_unmap_fmr; 1356 dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; 1357 if (mthca_is_memfree(dev)) 1358 dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; 1359 else 1360 dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; 1361 } 1362 1363 dev->ib_dev.attach_mcast = mthca_multicast_attach; 1364 dev->ib_dev.detach_mcast = mthca_multicast_detach; 1365 dev->ib_dev.process_mad = mthca_process_mad; 1366 1367 if (mthca_is_memfree(dev)) { 1368 dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; 1369 dev->ib_dev.post_send = mthca_arbel_post_send; 1370 dev->ib_dev.post_recv = mthca_arbel_post_receive; 1371 } else { 1372 dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; 1373 dev->ib_dev.post_send = mthca_tavor_post_send; 1374 dev->ib_dev.post_recv = mthca_tavor_post_receive; 1375 } 1376 1377 mutex_init(&dev->cap_mask_mutex); 1378 1379 ret = ib_register_device(&dev->ib_dev, NULL); 1380 if (ret) 1381 return ret; 1382 1383 for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) { 1384 ret = device_create_file(&dev->ib_dev.dev, 1385 mthca_dev_attributes[i]); 1386 if (ret) { 1387 ib_unregister_device(&dev->ib_dev); 1388 return ret; 1389 } 1390 } 1391 1392 mthca_start_catas_poll(dev); 1393 1394 return 0; 1395 } 1396 1397 void mthca_unregister_device(struct mthca_dev *dev) 1398 { 1399 mthca_stop_catas_poll(dev); 1400 ib_unregister_device(&dev->ib_dev); 1401 } 1402