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 52static 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 60static int mthca_query_device(struct ib_device *ibdev, 61 struct ib_device_attr *props) 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 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 69 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 70 if (!in_mad || !out_mad) 71 goto out; 72 73 memset(props, 0, sizeof *props); 74 75 props->fw_ver = mdev->fw_ver; 76 77 init_query_mad(in_mad); 78 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 79 80 err = mthca_MAD_IFC(mdev, 1, 1, 81 1, NULL, NULL, in_mad, out_mad); 82 if (err) 83 goto out; 84 85 props->device_cap_flags = mdev->device_cap_flags; 86 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 87 0xffffff; 88 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); 89 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); 90 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 91 92 props->max_mr_size = ~0ull; 93 props->page_size_cap = mdev->limits.page_size_cap; 94 props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; 95 props->max_qp_wr = mdev->limits.max_wqes; 96 props->max_sge = mdev->limits.max_sg; 97 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; 98 props->max_cqe = mdev->limits.max_cqes; 99 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; 100 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; 101 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; 102 props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; 103 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 104 props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; 105 props->max_srq_wr = mdev->limits.max_srq_wqes; 106 props->max_srq_sge = mdev->limits.max_srq_sge; 107 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; 108 props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? 109 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 110 props->max_pkeys = mdev->limits.pkey_table_len; 111 props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; 112 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; 113 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 114 props->max_mcast_grp; 115 /* 116 * If Sinai memory key optimization is being used, then only 117 * the 8-bit key portion will change. For other HCAs, the 118 * unused index bits will also be used for FMR remapping. 119 */ 120 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 121 props->max_map_per_fmr = 255; 122 else 123 props->max_map_per_fmr = 124 (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1; 125 126 err = 0; 127 out: 128 kfree(in_mad); 129 kfree(out_mad); 130 return err; 131} 132 133static int mthca_query_port(struct ib_device *ibdev, 134 u8 port, struct ib_port_attr *props) 135{ 136 struct ib_smp *in_mad = NULL; 137 struct ib_smp *out_mad = NULL; 138 int err = -ENOMEM; 139 140 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 141 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 142 if (!in_mad || !out_mad) 143 goto out; 144 145 memset(props, 0, sizeof *props); 146 147 init_query_mad(in_mad); 148 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 149 in_mad->attr_mod = cpu_to_be32(port); 150 151 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 152 port, NULL, NULL, in_mad, out_mad); 153 if (err) 154 goto out; 155 156 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 157 props->lmc = out_mad->data[34] & 0x7; 158 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 159 props->sm_sl = out_mad->data[36] & 0xf; 160 props->state = out_mad->data[32] & 0xf; 161 props->phys_state = out_mad->data[33] >> 4; 162 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 163 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; 164 props->max_msg_sz = 0x80000000; 165 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; 166 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 167 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 168 props->active_width = out_mad->data[31] & 0xf; 169 props->active_speed = out_mad->data[35] >> 4; 170 props->max_mtu = out_mad->data[41] & 0xf; 171 props->active_mtu = out_mad->data[36] >> 4; 172 props->subnet_timeout = out_mad->data[51] & 0x1f; 173 props->max_vl_num = out_mad->data[37] >> 4; 174 props->init_type_reply = out_mad->data[41] >> 4; 175 176 out: 177 kfree(in_mad); 178 kfree(out_mad); 179 return err; 180} 181 182static int mthca_modify_device(struct ib_device *ibdev, 183 int mask, 184 struct ib_device_modify *props) 185{ 186 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 187 return -EOPNOTSUPP; 188 189 if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 190 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 191 return -ERESTARTSYS; 192 memcpy(ibdev->node_desc, props->node_desc, 64); 193 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 194 } 195 196 return 0; 197} 198 199static int mthca_modify_port(struct ib_device *ibdev, 200 u8 port, int port_modify_mask, 201 struct ib_port_modify *props) 202{ 203 struct mthca_set_ib_param set_ib; 204 struct ib_port_attr attr; 205 int err; 206 207 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 208 return -ERESTARTSYS; 209 210 err = mthca_query_port(ibdev, port, &attr); 211 if (err) 212 goto out; 213 214 set_ib.set_si_guid = 0; 215 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); 216 217 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 218 ~props->clr_port_cap_mask; 219 220 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port); 221 if (err) 222 goto out; 223out: 224 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 225 return err; 226} 227 228static int mthca_query_pkey(struct ib_device *ibdev, 229 u8 port, u16 index, u16 *pkey) 230{ 231 struct ib_smp *in_mad = NULL; 232 struct ib_smp *out_mad = NULL; 233 int err = -ENOMEM; 234 235 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 236 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 237 if (!in_mad || !out_mad) 238 goto out; 239 240 init_query_mad(in_mad); 241 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 242 in_mad->attr_mod = cpu_to_be32(index / 32); 243 244 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 245 port, NULL, NULL, in_mad, out_mad); 246 if (err) 247 goto out; 248 249 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 250 251 out: 252 kfree(in_mad); 253 kfree(out_mad); 254 return err; 255} 256 257static int mthca_query_gid(struct ib_device *ibdev, u8 port, 258 int index, union ib_gid *gid) 259{ 260 struct ib_smp *in_mad = NULL; 261 struct ib_smp *out_mad = NULL; 262 int err = -ENOMEM; 263 264 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 265 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 266 if (!in_mad || !out_mad) 267 goto out; 268 269 init_query_mad(in_mad); 270 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 271 in_mad->attr_mod = cpu_to_be32(port); 272 273 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 274 port, NULL, NULL, in_mad, out_mad); 275 if (err) 276 goto out; 277 278 memcpy(gid->raw, out_mad->data + 8, 8); 279 280 init_query_mad(in_mad); 281 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 282 in_mad->attr_mod = cpu_to_be32(index / 8); 283 284 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 285 port, NULL, NULL, in_mad, out_mad); 286 if (err) 287 goto out; 288 289 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 290 291 out: 292 kfree(in_mad); 293 kfree(out_mad); 294 return err; 295} 296 297static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, 298 struct ib_udata *udata) 299{ 300 struct mthca_alloc_ucontext_resp uresp; 301 struct mthca_ucontext *context; 302 int err; 303 304 if (!(to_mdev(ibdev)->active)) 305 return ERR_PTR(-EAGAIN); 306 307 memset(&uresp, 0, sizeof uresp); 308 309 uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; 310 if (mthca_is_memfree(to_mdev(ibdev))) 311 uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; 312 else 313 uresp.uarc_size = 0; 314 315 context = kmalloc(sizeof *context, GFP_KERNEL); 316 if (!context) 317 return ERR_PTR(-ENOMEM); 318 319 err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); 320 if (err) { 321 kfree(context); 322 return ERR_PTR(err); 323 } 324 325 context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); 326 if (IS_ERR(context->db_tab)) { 327 err = PTR_ERR(context->db_tab); 328 mthca_uar_free(to_mdev(ibdev), &context->uar); 329 kfree(context); 330 return ERR_PTR(err); 331 } 332 333 if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { 334 mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); 335 mthca_uar_free(to_mdev(ibdev), &context->uar); 336 kfree(context); 337 return ERR_PTR(-EFAULT); 338 } 339 340 context->reg_mr_warned = 0; 341 342 return &context->ibucontext; 343} 344 345static int mthca_dealloc_ucontext(struct ib_ucontext *context) 346{ 347 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, 348 to_mucontext(context)->db_tab); 349 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); 350 kfree(to_mucontext(context)); 351 352 return 0; 353} 354 355static int mthca_mmap_uar(struct ib_ucontext *context, 356 struct vm_area_struct *vma) 357{ 358 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 359 return -EINVAL; 360 361 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 362 363 if (io_remap_pfn_range(vma, vma->vm_start, 364 to_mucontext(context)->uar.pfn, 365 PAGE_SIZE, vma->vm_page_prot)) 366 return -EAGAIN; 367 368 return 0; 369} 370 371static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, 372 struct ib_ucontext *context, 373 struct ib_udata *udata) 374{ 375 struct mthca_pd *pd; 376 int err; 377 378 pd = kmalloc(sizeof *pd, GFP_KERNEL); 379 if (!pd) 380 return ERR_PTR(-ENOMEM); 381 382 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); 383 if (err) { 384 kfree(pd); 385 return ERR_PTR(err); 386 } 387 388 if (context) { 389 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { 390 mthca_pd_free(to_mdev(ibdev), pd); 391 kfree(pd); 392 return ERR_PTR(-EFAULT); 393 } 394 } 395 396 return &pd->ibpd; 397} 398 399static int mthca_dealloc_pd(struct ib_pd *pd) 400{ 401 mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); 402 kfree(pd); 403 404 return 0; 405} 406 407static struct ib_ah *mthca_ah_create(struct ib_pd *pd, 408 struct ib_ah_attr *ah_attr) 409{ 410 int err; 411 struct mthca_ah *ah; 412 413 ah = kmalloc(sizeof *ah, GFP_ATOMIC); 414 if (!ah) 415 return ERR_PTR(-ENOMEM); 416 417 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); 418 if (err) { 419 kfree(ah); 420 return ERR_PTR(err); 421 } 422 423 return &ah->ibah; 424} 425 426static int mthca_ah_destroy(struct ib_ah *ah) 427{ 428 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); 429 kfree(ah); 430 431 return 0; 432} 433 434static struct ib_srq *mthca_create_srq(struct ib_pd *pd, 435 struct ib_srq_init_attr *init_attr, 436 struct ib_udata *udata) 437{ 438 struct mthca_create_srq ucmd; 439 struct mthca_ucontext *context = NULL; 440 struct mthca_srq *srq; 441 int err; 442 443 if (init_attr->srq_type != IB_SRQT_BASIC) 444 return ERR_PTR(-ENOSYS); 445 446 srq = kmalloc(sizeof *srq, GFP_KERNEL); 447 if (!srq) 448 return ERR_PTR(-ENOMEM); 449 450 if (pd->uobject) { 451 context = to_mucontext(pd->uobject->context); 452 453 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 454 err = -EFAULT; 455 goto err_free; 456 } 457 458 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 459 context->db_tab, ucmd.db_index, 460 ucmd.db_page); 461 462 if (err) 463 goto err_free; 464 465 srq->mr.ibmr.lkey = ucmd.lkey; 466 srq->db_index = ucmd.db_index; 467 } 468 469 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), 470 &init_attr->attr, srq); 471 472 if (err && pd->uobject) 473 mthca_unmap_user_db(to_mdev(pd->device), &context->uar, 474 context->db_tab, ucmd.db_index); 475 476 if (err) 477 goto err_free; 478 479 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { 480 mthca_free_srq(to_mdev(pd->device), srq); 481 err = -EFAULT; 482 goto err_free; 483 } 484 485 return &srq->ibsrq; 486 487err_free: 488 kfree(srq); 489 490 return ERR_PTR(err); 491} 492 493static int mthca_destroy_srq(struct ib_srq *srq) 494{ 495 struct mthca_ucontext *context; 496 497 if (srq->uobject) { 498 context = to_mucontext(srq->uobject->context); 499 500 mthca_unmap_user_db(to_mdev(srq->device), &context->uar, 501 context->db_tab, to_msrq(srq)->db_index); 502 } 503 504 mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); 505 kfree(srq); 506 507 return 0; 508} 509 510static struct ib_qp *mthca_create_qp(struct ib_pd *pd, 511 struct ib_qp_init_attr *init_attr, 512 struct ib_udata *udata) 513{ 514 struct mthca_create_qp ucmd; 515 struct mthca_qp *qp; 516 int err; 517 518 if (init_attr->create_flags) 519 return ERR_PTR(-EINVAL); 520 521 switch (init_attr->qp_type) { 522 case IB_QPT_RC: 523 case IB_QPT_UC: 524 case IB_QPT_UD: 525 { 526 struct mthca_ucontext *context; 527 528 qp = kmalloc(sizeof *qp, GFP_KERNEL); 529 if (!qp) 530 return ERR_PTR(-ENOMEM); 531 532 if (pd->uobject) { 533 context = to_mucontext(pd->uobject->context); 534 535 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 536 kfree(qp); 537 return ERR_PTR(-EFAULT); 538 } 539 540 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 541 context->db_tab, 542 ucmd.sq_db_index, ucmd.sq_db_page); 543 if (err) { 544 kfree(qp); 545 return ERR_PTR(err); 546 } 547 548 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 549 context->db_tab, 550 ucmd.rq_db_index, ucmd.rq_db_page); 551 if (err) { 552 mthca_unmap_user_db(to_mdev(pd->device), 553 &context->uar, 554 context->db_tab, 555 ucmd.sq_db_index); 556 kfree(qp); 557 return ERR_PTR(err); 558 } 559 560 qp->mr.ibmr.lkey = ucmd.lkey; 561 qp->sq.db_index = ucmd.sq_db_index; 562 qp->rq.db_index = ucmd.rq_db_index; 563 } 564 565 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), 566 to_mcq(init_attr->send_cq), 567 to_mcq(init_attr->recv_cq), 568 init_attr->qp_type, init_attr->sq_sig_type, 569 &init_attr->cap, qp); 570 571 if (err && pd->uobject) { 572 context = to_mucontext(pd->uobject->context); 573 574 mthca_unmap_user_db(to_mdev(pd->device), 575 &context->uar, 576 context->db_tab, 577 ucmd.sq_db_index); 578 mthca_unmap_user_db(to_mdev(pd->device), 579 &context->uar, 580 context->db_tab, 581 ucmd.rq_db_index); 582 } 583 584 qp->ibqp.qp_num = qp->qpn; 585 break; 586 } 587 case IB_QPT_SMI: 588 case IB_QPT_GSI: 589 { 590 /* Don't allow userspace to create special QPs */ 591 if (pd->uobject) 592 return ERR_PTR(-EINVAL); 593 594 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); 595 if (!qp) 596 return ERR_PTR(-ENOMEM); 597 598 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; 599 600 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), 601 to_mcq(init_attr->send_cq), 602 to_mcq(init_attr->recv_cq), 603 init_attr->sq_sig_type, &init_attr->cap, 604 qp->ibqp.qp_num, init_attr->port_num, 605 to_msqp(qp)); 606 break; 607 } 608 default: 609 /* Don't support raw QPs */ 610 return ERR_PTR(-ENOSYS); 611 } 612 613 if (err) { 614 kfree(qp); 615 return ERR_PTR(err); 616 } 617 618 init_attr->cap.max_send_wr = qp->sq.max; 619 init_attr->cap.max_recv_wr = qp->rq.max; 620 init_attr->cap.max_send_sge = qp->sq.max_gs; 621 init_attr->cap.max_recv_sge = qp->rq.max_gs; 622 init_attr->cap.max_inline_data = qp->max_inline_data; 623 624 return &qp->ibqp; 625} 626 627static int mthca_destroy_qp(struct ib_qp *qp) 628{ 629 if (qp->uobject) { 630 mthca_unmap_user_db(to_mdev(qp->device), 631 &to_mucontext(qp->uobject->context)->uar, 632 to_mucontext(qp->uobject->context)->db_tab, 633 to_mqp(qp)->sq.db_index); 634 mthca_unmap_user_db(to_mdev(qp->device), 635 &to_mucontext(qp->uobject->context)->uar, 636 to_mucontext(qp->uobject->context)->db_tab, 637 to_mqp(qp)->rq.db_index); 638 } 639 mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); 640 kfree(qp); 641 return 0; 642} 643 644static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, 645 int comp_vector, 646 struct ib_ucontext *context, 647 struct ib_udata *udata) 648{ 649 struct mthca_create_cq ucmd; 650 struct mthca_cq *cq; 651 int nent; 652 int err; 653 654 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) 655 return ERR_PTR(-EINVAL); 656 657 if (context) { 658 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 659 return ERR_PTR(-EFAULT); 660 661 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 662 to_mucontext(context)->db_tab, 663 ucmd.set_db_index, ucmd.set_db_page); 664 if (err) 665 return ERR_PTR(err); 666 667 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 668 to_mucontext(context)->db_tab, 669 ucmd.arm_db_index, ucmd.arm_db_page); 670 if (err) 671 goto err_unmap_set; 672 } 673 674 cq = kmalloc(sizeof *cq, GFP_KERNEL); 675 if (!cq) { 676 err = -ENOMEM; 677 goto err_unmap_arm; 678 } 679 680 if (context) { 681 cq->buf.mr.ibmr.lkey = ucmd.lkey; 682 cq->set_ci_db_index = ucmd.set_db_index; 683 cq->arm_db_index = ucmd.arm_db_index; 684 } 685 686 for (nent = 1; nent <= entries; nent <<= 1) 687 ; /* nothing */ 688 689 err = mthca_init_cq(to_mdev(ibdev), nent, 690 context ? to_mucontext(context) : NULL, 691 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, 692 cq); 693 if (err) 694 goto err_free; 695 696 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { 697 mthca_free_cq(to_mdev(ibdev), cq); 698 err = -EFAULT; 699 goto err_free; 700 } 701 702 cq->resize_buf = NULL; 703 704 return &cq->ibcq; 705 706err_free: 707 kfree(cq); 708 709err_unmap_arm: 710 if (context) 711 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 712 to_mucontext(context)->db_tab, ucmd.arm_db_index); 713 714err_unmap_set: 715 if (context) 716 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 717 to_mucontext(context)->db_tab, ucmd.set_db_index); 718 719 return ERR_PTR(err); 720} 721 722static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, 723 int entries) 724{ 725 int ret; 726 727 spin_lock_irq(&cq->lock); 728 if (cq->resize_buf) { 729 ret = -EBUSY; 730 goto unlock; 731 } 732 733 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); 734 if (!cq->resize_buf) { 735 ret = -ENOMEM; 736 goto unlock; 737 } 738 739 cq->resize_buf->state = CQ_RESIZE_ALLOC; 740 741 ret = 0; 742 743unlock: 744 spin_unlock_irq(&cq->lock); 745 746 if (ret) 747 return ret; 748 749 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); 750 if (ret) { 751 spin_lock_irq(&cq->lock); 752 kfree(cq->resize_buf); 753 cq->resize_buf = NULL; 754 spin_unlock_irq(&cq->lock); 755 return ret; 756 } 757 758 cq->resize_buf->cqe = entries - 1; 759 760 spin_lock_irq(&cq->lock); 761 cq->resize_buf->state = CQ_RESIZE_READY; 762 spin_unlock_irq(&cq->lock); 763 764 return 0; 765} 766 767static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) 768{ 769 struct mthca_dev *dev = to_mdev(ibcq->device); 770 struct mthca_cq *cq = to_mcq(ibcq); 771 struct mthca_resize_cq ucmd; 772 u32 lkey; 773 int ret; 774 775 if (entries < 1 || entries > dev->limits.max_cqes) 776 return -EINVAL; 777 778 mutex_lock(&cq->mutex); 779 780 entries = roundup_pow_of_two(entries + 1); 781 if (entries == ibcq->cqe + 1) { 782 ret = 0; 783 goto out; 784 } 785 786 if (cq->is_kernel) { 787 ret = mthca_alloc_resize_buf(dev, cq, entries); 788 if (ret) 789 goto out; 790 lkey = cq->resize_buf->buf.mr.ibmr.lkey; 791 } else { 792 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 793 ret = -EFAULT; 794 goto out; 795 } 796 lkey = ucmd.lkey; 797 } 798 799 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries)); 800 801 if (ret) { 802 if (cq->resize_buf) { 803 mthca_free_cq_buf(dev, &cq->resize_buf->buf, 804 cq->resize_buf->cqe); 805 kfree(cq->resize_buf); 806 spin_lock_irq(&cq->lock); 807 cq->resize_buf = NULL; 808 spin_unlock_irq(&cq->lock); 809 } 810 goto out; 811 } 812 813 if (cq->is_kernel) { 814 struct mthca_cq_buf tbuf; 815 int tcqe; 816 817 spin_lock_irq(&cq->lock); 818 if (cq->resize_buf->state == CQ_RESIZE_READY) { 819 mthca_cq_resize_copy_cqes(cq); 820 tbuf = cq->buf; 821 tcqe = cq->ibcq.cqe; 822 cq->buf = cq->resize_buf->buf; 823 cq->ibcq.cqe = cq->resize_buf->cqe; 824 } else { 825 tbuf = cq->resize_buf->buf; 826 tcqe = cq->resize_buf->cqe; 827 } 828 829 kfree(cq->resize_buf); 830 cq->resize_buf = NULL; 831 spin_unlock_irq(&cq->lock); 832 833 mthca_free_cq_buf(dev, &tbuf, tcqe); 834 } else 835 ibcq->cqe = entries - 1; 836 837out: 838 mutex_unlock(&cq->mutex); 839 840 return ret; 841} 842 843static int mthca_destroy_cq(struct ib_cq *cq) 844{ 845 if (cq->uobject) { 846 mthca_unmap_user_db(to_mdev(cq->device), 847 &to_mucontext(cq->uobject->context)->uar, 848 to_mucontext(cq->uobject->context)->db_tab, 849 to_mcq(cq)->arm_db_index); 850 mthca_unmap_user_db(to_mdev(cq->device), 851 &to_mucontext(cq->uobject->context)->uar, 852 to_mucontext(cq->uobject->context)->db_tab, 853 to_mcq(cq)->set_ci_db_index); 854 } 855 mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); 856 kfree(cq); 857 858 return 0; 859} 860 861static inline u32 convert_access(int acc) 862{ 863 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | 864 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | 865 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | 866 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | 867 MTHCA_MPT_FLAG_LOCAL_READ; 868} 869 870static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) 871{ 872 struct mthca_mr *mr; 873 int err; 874 875 mr = kmalloc(sizeof *mr, GFP_KERNEL); 876 if (!mr) 877 return ERR_PTR(-ENOMEM); 878 879 err = mthca_mr_alloc_notrans(to_mdev(pd->device), 880 to_mpd(pd)->pd_num, 881 convert_access(acc), mr); 882 883 if (err) { 884 kfree(mr); 885 return ERR_PTR(err); 886 } 887 888 mr->umem = NULL; 889 890 return &mr->ibmr; 891} 892 893static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, 894 struct ib_phys_buf *buffer_list, 895 int num_phys_buf, 896 int acc, 897 u64 *iova_start) 898{ 899 struct mthca_mr *mr; 900 u64 *page_list; 901 u64 total_size; 902 unsigned long mask; 903 int shift; 904 int npages; 905 int err; 906 int i, j, n; 907 908 mask = buffer_list[0].addr ^ *iova_start; 909 total_size = 0; 910 for (i = 0; i < num_phys_buf; ++i) { 911 if (i != 0) 912 mask |= buffer_list[i].addr; 913 if (i != num_phys_buf - 1) 914 mask |= buffer_list[i].addr + buffer_list[i].size; 915 916 total_size += buffer_list[i].size; 917 } 918 919 if (mask & ~PAGE_MASK) 920 return ERR_PTR(-EINVAL); 921 922 shift = __ffs(mask | 1 << 31); 923 924 buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); 925 buffer_list[0].addr &= ~0ull << shift; 926 927 mr = kmalloc(sizeof *mr, GFP_KERNEL); 928 if (!mr) 929 return ERR_PTR(-ENOMEM); 930 931 npages = 0; 932 for (i = 0; i < num_phys_buf; ++i) 933 npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 934 935 if (!npages) 936 return &mr->ibmr; 937 938 page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); 939 if (!page_list) { 940 kfree(mr); 941 return ERR_PTR(-ENOMEM); 942 } 943 944 n = 0; 945 for (i = 0; i < num_phys_buf; ++i) 946 for (j = 0; 947 j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 948 ++j) 949 page_list[n++] = buffer_list[i].addr + ((u64) j << shift); 950 951 mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " 952 "in PD %x; shift %d, npages %d.\n", 953 (unsigned long long) buffer_list[0].addr, 954 (unsigned long long) *iova_start, 955 to_mpd(pd)->pd_num, 956 shift, npages); 957 958 err = mthca_mr_alloc_phys(to_mdev(pd->device), 959 to_mpd(pd)->pd_num, 960 page_list, shift, npages, 961 *iova_start, total_size, 962 convert_access(acc), mr); 963 964 if (err) { 965 kfree(page_list); 966 kfree(mr); 967 return ERR_PTR(err); 968 } 969 970 kfree(page_list); 971 mr->umem = NULL; 972 973 return &mr->ibmr; 974} 975 976static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 977 u64 virt, int acc, struct ib_udata *udata) 978{ 979 struct mthca_dev *dev = to_mdev(pd->device); 980 struct scatterlist *sg; 981 struct mthca_mr *mr; 982 struct mthca_reg_mr ucmd; 983 u64 *pages; 984 int shift, n, len; 985 int i, k, entry; 986 int err = 0; 987 int write_mtt_size; 988 989 if (udata->inlen - sizeof (struct ib_uverbs_cmd_hdr) < sizeof ucmd) { 990 if (!to_mucontext(pd->uobject->context)->reg_mr_warned) { 991 mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n", 992 current->comm); 993 mthca_warn(dev, " Update libmthca to fix this.\n"); 994 } 995 ++to_mucontext(pd->uobject->context)->reg_mr_warned; 996 ucmd.mr_attrs = 0; 997 } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 998 return ERR_PTR(-EFAULT); 999 1000 mr = kmalloc(sizeof *mr, GFP_KERNEL); 1001 if (!mr) 1002 return ERR_PTR(-ENOMEM); 1003 1004 mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, 1005 ucmd.mr_attrs & MTHCA_MR_DMASYNC); 1006 1007 if (IS_ERR(mr->umem)) { 1008 err = PTR_ERR(mr->umem); 1009 goto err; 1010 } 1011 1012 shift = ffs(mr->umem->page_size) - 1; 1013 n = mr->umem->nmap; 1014 1015 mr->mtt = mthca_alloc_mtt(dev, n); 1016 if (IS_ERR(mr->mtt)) { 1017 err = PTR_ERR(mr->mtt); 1018 goto err_umem; 1019 } 1020 1021 pages = (u64 *) __get_free_page(GFP_KERNEL); 1022 if (!pages) { 1023 err = -ENOMEM; 1024 goto err_mtt; 1025 } 1026 1027 i = n = 0; 1028 1029 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); 1030 1031 for_each_sg(mr->umem->sg_head.sgl, sg, mr->umem->nmap, entry) { 1032 len = sg_dma_len(sg) >> shift; 1033 for (k = 0; k < len; ++k) { 1034 pages[i++] = sg_dma_address(sg) + 1035 mr->umem->page_size * k; 1036 /* 1037 * Be friendly to write_mtt and pass it chunks 1038 * of appropriate size. 1039 */ 1040 if (i == write_mtt_size) { 1041 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1042 if (err) 1043 goto mtt_done; 1044 n += i; 1045 i = 0; 1046 } 1047 } 1048 } 1049 1050 if (i) 1051 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1052mtt_done: 1053 free_page((unsigned long) pages); 1054 if (err) 1055 goto err_mtt; 1056 1057 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, 1058 convert_access(acc), mr); 1059 1060 if (err) 1061 goto err_mtt; 1062 1063 return &mr->ibmr; 1064 1065err_mtt: 1066 mthca_free_mtt(dev, mr->mtt); 1067 1068err_umem: 1069 ib_umem_release(mr->umem); 1070 1071err: 1072 kfree(mr); 1073 return ERR_PTR(err); 1074} 1075 1076static int mthca_dereg_mr(struct ib_mr *mr) 1077{ 1078 struct mthca_mr *mmr = to_mmr(mr); 1079 1080 mthca_free_mr(to_mdev(mr->device), mmr); 1081 if (mmr->umem) 1082 ib_umem_release(mmr->umem); 1083 kfree(mmr); 1084 1085 return 0; 1086} 1087 1088static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, 1089 struct ib_fmr_attr *fmr_attr) 1090{ 1091 struct mthca_fmr *fmr; 1092 int err; 1093 1094 fmr = kmalloc(sizeof *fmr, GFP_KERNEL); 1095 if (!fmr) 1096 return ERR_PTR(-ENOMEM); 1097 1098 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); 1099 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, 1100 convert_access(mr_access_flags), fmr); 1101 1102 if (err) { 1103 kfree(fmr); 1104 return ERR_PTR(err); 1105 } 1106 1107 return &fmr->ibmr; 1108} 1109 1110static int mthca_dealloc_fmr(struct ib_fmr *fmr) 1111{ 1112 struct mthca_fmr *mfmr = to_mfmr(fmr); 1113 int err; 1114 1115 err = mthca_free_fmr(to_mdev(fmr->device), mfmr); 1116 if (err) 1117 return err; 1118 1119 kfree(mfmr); 1120 return 0; 1121} 1122 1123static int mthca_unmap_fmr(struct list_head *fmr_list) 1124{ 1125 struct ib_fmr *fmr; 1126 int err; 1127 struct mthca_dev *mdev = NULL; 1128 1129 list_for_each_entry(fmr, fmr_list, list) { 1130 if (mdev && to_mdev(fmr->device) != mdev) 1131 return -EINVAL; 1132 mdev = to_mdev(fmr->device); 1133 } 1134 1135 if (!mdev) 1136 return 0; 1137 1138 if (mthca_is_memfree(mdev)) { 1139 list_for_each_entry(fmr, fmr_list, list) 1140 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); 1141 1142 wmb(); 1143 } else 1144 list_for_each_entry(fmr, fmr_list, list) 1145 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); 1146 1147 err = mthca_SYNC_TPT(mdev); 1148 return err; 1149} 1150 1151static ssize_t show_rev(struct device *device, struct device_attribute *attr, 1152 char *buf) 1153{ 1154 struct mthca_dev *dev = 1155 container_of(device, struct mthca_dev, ib_dev.dev); 1156 return sprintf(buf, "%x\n", dev->rev_id); 1157} 1158 1159static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, 1160 char *buf) 1161{ 1162 struct mthca_dev *dev = 1163 container_of(device, struct mthca_dev, ib_dev.dev); 1164 return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32), 1165 (int) (dev->fw_ver >> 16) & 0xffff, 1166 (int) dev->fw_ver & 0xffff); 1167} 1168 1169static ssize_t show_hca(struct device *device, struct device_attribute *attr, 1170 char *buf) 1171{ 1172 struct mthca_dev *dev = 1173 container_of(device, struct mthca_dev, ib_dev.dev); 1174 switch (dev->pdev->device) { 1175 case PCI_DEVICE_ID_MELLANOX_TAVOR: 1176 return sprintf(buf, "MT23108\n"); 1177 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: 1178 return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); 1179 case PCI_DEVICE_ID_MELLANOX_ARBEL: 1180 return sprintf(buf, "MT25208\n"); 1181 case PCI_DEVICE_ID_MELLANOX_SINAI: 1182 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: 1183 return sprintf(buf, "MT25204\n"); 1184 default: 1185 return sprintf(buf, "unknown\n"); 1186 } 1187} 1188 1189static ssize_t show_board(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, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); 1195} 1196 1197static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 1198static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 1199static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 1200static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 1201 1202static struct device_attribute *mthca_dev_attributes[] = { 1203 &dev_attr_hw_rev, 1204 &dev_attr_fw_ver, 1205 &dev_attr_hca_type, 1206 &dev_attr_board_id 1207}; 1208 1209static int mthca_init_node_data(struct mthca_dev *dev) 1210{ 1211 struct ib_smp *in_mad = NULL; 1212 struct ib_smp *out_mad = NULL; 1213 int err = -ENOMEM; 1214 1215 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1216 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1217 if (!in_mad || !out_mad) 1218 goto out; 1219 1220 init_query_mad(in_mad); 1221 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1222 1223 err = mthca_MAD_IFC(dev, 1, 1, 1224 1, NULL, NULL, in_mad, out_mad); 1225 if (err) 1226 goto out; 1227 1228 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 1229 1230 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1231 1232 err = mthca_MAD_IFC(dev, 1, 1, 1233 1, NULL, NULL, in_mad, out_mad); 1234 if (err) 1235 goto out; 1236 1237 if (mthca_is_memfree(dev)) 1238 dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 1239 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1240 1241out: 1242 kfree(in_mad); 1243 kfree(out_mad); 1244 return err; 1245} 1246 1247int mthca_register_device(struct mthca_dev *dev) 1248{ 1249 int ret; 1250 int i; 1251 1252 ret = mthca_init_node_data(dev); 1253 if (ret) 1254 return ret; 1255 1256 strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); 1257 dev->ib_dev.owner = THIS_MODULE; 1258 1259 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; 1260 dev->ib_dev.uverbs_cmd_mask = 1261 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1262 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1263 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1264 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1265 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1266 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1267 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1268 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1269 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1270 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1271 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1272 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1273 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1274 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1275 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1276 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1277 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); 1278 dev->ib_dev.node_type = RDMA_NODE_IB_CA; 1279 dev->ib_dev.phys_port_cnt = dev->limits.num_ports; 1280 dev->ib_dev.num_comp_vectors = 1; 1281 dev->ib_dev.dma_device = &dev->pdev->dev; 1282 dev->ib_dev.query_device = mthca_query_device; 1283 dev->ib_dev.query_port = mthca_query_port; 1284 dev->ib_dev.modify_device = mthca_modify_device; 1285 dev->ib_dev.modify_port = mthca_modify_port; 1286 dev->ib_dev.query_pkey = mthca_query_pkey; 1287 dev->ib_dev.query_gid = mthca_query_gid; 1288 dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; 1289 dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; 1290 dev->ib_dev.mmap = mthca_mmap_uar; 1291 dev->ib_dev.alloc_pd = mthca_alloc_pd; 1292 dev->ib_dev.dealloc_pd = mthca_dealloc_pd; 1293 dev->ib_dev.create_ah = mthca_ah_create; 1294 dev->ib_dev.query_ah = mthca_ah_query; 1295 dev->ib_dev.destroy_ah = mthca_ah_destroy; 1296 1297 if (dev->mthca_flags & MTHCA_FLAG_SRQ) { 1298 dev->ib_dev.create_srq = mthca_create_srq; 1299 dev->ib_dev.modify_srq = mthca_modify_srq; 1300 dev->ib_dev.query_srq = mthca_query_srq; 1301 dev->ib_dev.destroy_srq = mthca_destroy_srq; 1302 dev->ib_dev.uverbs_cmd_mask |= 1303 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1304 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1305 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1306 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1307 1308 if (mthca_is_memfree(dev)) 1309 dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; 1310 else 1311 dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; 1312 } 1313 1314 dev->ib_dev.create_qp = mthca_create_qp; 1315 dev->ib_dev.modify_qp = mthca_modify_qp; 1316 dev->ib_dev.query_qp = mthca_query_qp; 1317 dev->ib_dev.destroy_qp = mthca_destroy_qp; 1318 dev->ib_dev.create_cq = mthca_create_cq; 1319 dev->ib_dev.resize_cq = mthca_resize_cq; 1320 dev->ib_dev.destroy_cq = mthca_destroy_cq; 1321 dev->ib_dev.poll_cq = mthca_poll_cq; 1322 dev->ib_dev.get_dma_mr = mthca_get_dma_mr; 1323 dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; 1324 dev->ib_dev.reg_user_mr = mthca_reg_user_mr; 1325 dev->ib_dev.dereg_mr = mthca_dereg_mr; 1326 1327 if (dev->mthca_flags & MTHCA_FLAG_FMR) { 1328 dev->ib_dev.alloc_fmr = mthca_alloc_fmr; 1329 dev->ib_dev.unmap_fmr = mthca_unmap_fmr; 1330 dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; 1331 if (mthca_is_memfree(dev)) 1332 dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; 1333 else 1334 dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; 1335 } 1336 1337 dev->ib_dev.attach_mcast = mthca_multicast_attach; 1338 dev->ib_dev.detach_mcast = mthca_multicast_detach; 1339 dev->ib_dev.process_mad = mthca_process_mad; 1340 1341 if (mthca_is_memfree(dev)) { 1342 dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; 1343 dev->ib_dev.post_send = mthca_arbel_post_send; 1344 dev->ib_dev.post_recv = mthca_arbel_post_receive; 1345 } else { 1346 dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; 1347 dev->ib_dev.post_send = mthca_tavor_post_send; 1348 dev->ib_dev.post_recv = mthca_tavor_post_receive; 1349 } 1350 1351 mutex_init(&dev->cap_mask_mutex); 1352 1353 ret = ib_register_device(&dev->ib_dev, NULL); 1354 if (ret) 1355 return ret; 1356 1357 for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) { 1358 ret = device_create_file(&dev->ib_dev.dev, 1359 mthca_dev_attributes[i]); 1360 if (ret) { 1361 ib_unregister_device(&dev->ib_dev); 1362 return ret; 1363 } 1364 } 1365 1366 mthca_start_catas_poll(dev); 1367 1368 return 0; 1369} 1370 1371void mthca_unregister_device(struct mthca_dev *dev) 1372{ 1373 mthca_stop_catas_poll(dev); 1374 ib_unregister_device(&dev->ib_dev); 1375} 1376