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 * $Id: mthca_provider.c,v 1.1.1.1 2007/08/03 18:52:32 Exp $ 37 */ 38 39#include <rdma/ib_smi.h> 40#include <rdma/ib_umem.h> 41#include <rdma/ib_user_verbs.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 49static 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 57static 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 137static 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 192static 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 209static 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 239out: 240 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 241 return err; 242} 243 244static 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 279static 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 330static 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 return &context->ibucontext; 371} 372 373static int mthca_dealloc_ucontext(struct ib_ucontext *context) 374{ 375 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, 376 to_mucontext(context)->db_tab); 377 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); 378 kfree(to_mucontext(context)); 379 380 return 0; 381} 382 383static int mthca_mmap_uar(struct ib_ucontext *context, 384 struct vm_area_struct *vma) 385{ 386 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 387 return -EINVAL; 388 389 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 390 391 if (io_remap_pfn_range(vma, vma->vm_start, 392 to_mucontext(context)->uar.pfn, 393 PAGE_SIZE, vma->vm_page_prot)) 394 return -EAGAIN; 395 396 return 0; 397} 398 399static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, 400 struct ib_ucontext *context, 401 struct ib_udata *udata) 402{ 403 struct mthca_pd *pd; 404 int err; 405 406 pd = kmalloc(sizeof *pd, GFP_KERNEL); 407 if (!pd) 408 return ERR_PTR(-ENOMEM); 409 410 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); 411 if (err) { 412 kfree(pd); 413 return ERR_PTR(err); 414 } 415 416 if (context) { 417 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { 418 mthca_pd_free(to_mdev(ibdev), pd); 419 kfree(pd); 420 return ERR_PTR(-EFAULT); 421 } 422 } 423 424 return &pd->ibpd; 425} 426 427static int mthca_dealloc_pd(struct ib_pd *pd) 428{ 429 mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); 430 kfree(pd); 431 432 return 0; 433} 434 435static struct ib_ah *mthca_ah_create(struct ib_pd *pd, 436 struct ib_ah_attr *ah_attr) 437{ 438 int err; 439 struct mthca_ah *ah; 440 441 ah = kmalloc(sizeof *ah, GFP_ATOMIC); 442 if (!ah) 443 return ERR_PTR(-ENOMEM); 444 445 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); 446 if (err) { 447 kfree(ah); 448 return ERR_PTR(err); 449 } 450 451 return &ah->ibah; 452} 453 454static int mthca_ah_destroy(struct ib_ah *ah) 455{ 456 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); 457 kfree(ah); 458 459 return 0; 460} 461 462static struct ib_srq *mthca_create_srq(struct ib_pd *pd, 463 struct ib_srq_init_attr *init_attr, 464 struct ib_udata *udata) 465{ 466 struct mthca_create_srq ucmd; 467 struct mthca_ucontext *context = NULL; 468 struct mthca_srq *srq; 469 int err; 470 471 srq = kmalloc(sizeof *srq, GFP_KERNEL); 472 if (!srq) 473 return ERR_PTR(-ENOMEM); 474 475 if (pd->uobject) { 476 context = to_mucontext(pd->uobject->context); 477 478 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 479 err = -EFAULT; 480 goto err_free; 481 } 482 483 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 484 context->db_tab, ucmd.db_index, 485 ucmd.db_page); 486 487 if (err) 488 goto err_free; 489 490 srq->mr.ibmr.lkey = ucmd.lkey; 491 srq->db_index = ucmd.db_index; 492 } 493 494 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), 495 &init_attr->attr, srq); 496 497 if (err && pd->uobject) 498 mthca_unmap_user_db(to_mdev(pd->device), &context->uar, 499 context->db_tab, ucmd.db_index); 500 501 if (err) 502 goto err_free; 503 504 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { 505 mthca_free_srq(to_mdev(pd->device), srq); 506 err = -EFAULT; 507 goto err_free; 508 } 509 510 return &srq->ibsrq; 511 512err_free: 513 kfree(srq); 514 515 return ERR_PTR(err); 516} 517 518static int mthca_destroy_srq(struct ib_srq *srq) 519{ 520 struct mthca_ucontext *context; 521 522 if (srq->uobject) { 523 context = to_mucontext(srq->uobject->context); 524 525 mthca_unmap_user_db(to_mdev(srq->device), &context->uar, 526 context->db_tab, to_msrq(srq)->db_index); 527 } 528 529 mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); 530 kfree(srq); 531 532 return 0; 533} 534 535static struct ib_qp *mthca_create_qp(struct ib_pd *pd, 536 struct ib_qp_init_attr *init_attr, 537 struct ib_udata *udata) 538{ 539 struct mthca_create_qp ucmd; 540 struct mthca_qp *qp; 541 int err; 542 543 switch (init_attr->qp_type) { 544 case IB_QPT_RC: 545 case IB_QPT_UC: 546 case IB_QPT_UD: 547 { 548 struct mthca_ucontext *context; 549 550 qp = kmalloc(sizeof *qp, GFP_KERNEL); 551 if (!qp) 552 return ERR_PTR(-ENOMEM); 553 554 if (pd->uobject) { 555 context = to_mucontext(pd->uobject->context); 556 557 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 558 kfree(qp); 559 return ERR_PTR(-EFAULT); 560 } 561 562 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 563 context->db_tab, 564 ucmd.sq_db_index, ucmd.sq_db_page); 565 if (err) { 566 kfree(qp); 567 return ERR_PTR(err); 568 } 569 570 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 571 context->db_tab, 572 ucmd.rq_db_index, ucmd.rq_db_page); 573 if (err) { 574 mthca_unmap_user_db(to_mdev(pd->device), 575 &context->uar, 576 context->db_tab, 577 ucmd.sq_db_index); 578 kfree(qp); 579 return ERR_PTR(err); 580 } 581 582 qp->mr.ibmr.lkey = ucmd.lkey; 583 qp->sq.db_index = ucmd.sq_db_index; 584 qp->rq.db_index = ucmd.rq_db_index; 585 } 586 587 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), 588 to_mcq(init_attr->send_cq), 589 to_mcq(init_attr->recv_cq), 590 init_attr->qp_type, init_attr->sq_sig_type, 591 &init_attr->cap, qp); 592 593 if (err && pd->uobject) { 594 context = to_mucontext(pd->uobject->context); 595 596 mthca_unmap_user_db(to_mdev(pd->device), 597 &context->uar, 598 context->db_tab, 599 ucmd.sq_db_index); 600 mthca_unmap_user_db(to_mdev(pd->device), 601 &context->uar, 602 context->db_tab, 603 ucmd.rq_db_index); 604 } 605 606 qp->ibqp.qp_num = qp->qpn; 607 break; 608 } 609 case IB_QPT_SMI: 610 case IB_QPT_GSI: 611 { 612 /* Don't allow userspace to create special QPs */ 613 if (pd->uobject) 614 return ERR_PTR(-EINVAL); 615 616 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); 617 if (!qp) 618 return ERR_PTR(-ENOMEM); 619 620 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; 621 622 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), 623 to_mcq(init_attr->send_cq), 624 to_mcq(init_attr->recv_cq), 625 init_attr->sq_sig_type, &init_attr->cap, 626 qp->ibqp.qp_num, init_attr->port_num, 627 to_msqp(qp)); 628 break; 629 } 630 default: 631 /* Don't support raw QPs */ 632 return ERR_PTR(-ENOSYS); 633 } 634 635 if (err) { 636 kfree(qp); 637 return ERR_PTR(err); 638 } 639 640 init_attr->cap.max_send_wr = qp->sq.max; 641 init_attr->cap.max_recv_wr = qp->rq.max; 642 init_attr->cap.max_send_sge = qp->sq.max_gs; 643 init_attr->cap.max_recv_sge = qp->rq.max_gs; 644 init_attr->cap.max_inline_data = qp->max_inline_data; 645 646 return &qp->ibqp; 647} 648 649static int mthca_destroy_qp(struct ib_qp *qp) 650{ 651 if (qp->uobject) { 652 mthca_unmap_user_db(to_mdev(qp->device), 653 &to_mucontext(qp->uobject->context)->uar, 654 to_mucontext(qp->uobject->context)->db_tab, 655 to_mqp(qp)->sq.db_index); 656 mthca_unmap_user_db(to_mdev(qp->device), 657 &to_mucontext(qp->uobject->context)->uar, 658 to_mucontext(qp->uobject->context)->db_tab, 659 to_mqp(qp)->rq.db_index); 660 } 661 mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); 662 kfree(qp); 663 return 0; 664} 665 666static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, 667 int comp_vector, 668 struct ib_ucontext *context, 669 struct ib_udata *udata) 670{ 671 struct mthca_create_cq ucmd; 672 struct mthca_cq *cq; 673 int nent; 674 int err; 675 676 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) 677 return ERR_PTR(-EINVAL); 678 679 if (context) { 680 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 681 return ERR_PTR(-EFAULT); 682 683 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 684 to_mucontext(context)->db_tab, 685 ucmd.set_db_index, ucmd.set_db_page); 686 if (err) 687 return ERR_PTR(err); 688 689 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 690 to_mucontext(context)->db_tab, 691 ucmd.arm_db_index, ucmd.arm_db_page); 692 if (err) 693 goto err_unmap_set; 694 } 695 696 cq = kmalloc(sizeof *cq, GFP_KERNEL); 697 if (!cq) { 698 err = -ENOMEM; 699 goto err_unmap_arm; 700 } 701 702 if (context) { 703 cq->buf.mr.ibmr.lkey = ucmd.lkey; 704 cq->set_ci_db_index = ucmd.set_db_index; 705 cq->arm_db_index = ucmd.arm_db_index; 706 } 707 708 for (nent = 1; nent <= entries; nent <<= 1) 709 ; /* nothing */ 710 711 err = mthca_init_cq(to_mdev(ibdev), nent, 712 context ? to_mucontext(context) : NULL, 713 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, 714 cq); 715 if (err) 716 goto err_free; 717 718 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { 719 mthca_free_cq(to_mdev(ibdev), cq); 720 goto err_free; 721 } 722 723 cq->resize_buf = NULL; 724 725 return &cq->ibcq; 726 727err_free: 728 kfree(cq); 729 730err_unmap_arm: 731 if (context) 732 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 733 to_mucontext(context)->db_tab, ucmd.arm_db_index); 734 735err_unmap_set: 736 if (context) 737 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 738 to_mucontext(context)->db_tab, ucmd.set_db_index); 739 740 return ERR_PTR(err); 741} 742 743static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, 744 int entries) 745{ 746 int ret; 747 748 spin_lock_irq(&cq->lock); 749 if (cq->resize_buf) { 750 ret = -EBUSY; 751 goto unlock; 752 } 753 754 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); 755 if (!cq->resize_buf) { 756 ret = -ENOMEM; 757 goto unlock; 758 } 759 760 cq->resize_buf->state = CQ_RESIZE_ALLOC; 761 762 ret = 0; 763 764unlock: 765 spin_unlock_irq(&cq->lock); 766 767 if (ret) 768 return ret; 769 770 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); 771 if (ret) { 772 spin_lock_irq(&cq->lock); 773 kfree(cq->resize_buf); 774 cq->resize_buf = NULL; 775 spin_unlock_irq(&cq->lock); 776 return ret; 777 } 778 779 cq->resize_buf->cqe = entries - 1; 780 781 spin_lock_irq(&cq->lock); 782 cq->resize_buf->state = CQ_RESIZE_READY; 783 spin_unlock_irq(&cq->lock); 784 785 return 0; 786} 787 788static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) 789{ 790 struct mthca_dev *dev = to_mdev(ibcq->device); 791 struct mthca_cq *cq = to_mcq(ibcq); 792 struct mthca_resize_cq ucmd; 793 u32 lkey; 794 u8 status; 795 int ret; 796 797 if (entries < 1 || entries > dev->limits.max_cqes) 798 return -EINVAL; 799 800 mutex_lock(&cq->mutex); 801 802 entries = roundup_pow_of_two(entries + 1); 803 if (entries == ibcq->cqe + 1) { 804 ret = 0; 805 goto out; 806 } 807 808 if (cq->is_kernel) { 809 ret = mthca_alloc_resize_buf(dev, cq, entries); 810 if (ret) 811 goto out; 812 lkey = cq->resize_buf->buf.mr.ibmr.lkey; 813 } else { 814 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 815 ret = -EFAULT; 816 goto out; 817 } 818 lkey = ucmd.lkey; 819 } 820 821 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries), &status); 822 if (status) 823 ret = -EINVAL; 824 825 if (ret) { 826 if (cq->resize_buf) { 827 mthca_free_cq_buf(dev, &cq->resize_buf->buf, 828 cq->resize_buf->cqe); 829 kfree(cq->resize_buf); 830 spin_lock_irq(&cq->lock); 831 cq->resize_buf = NULL; 832 spin_unlock_irq(&cq->lock); 833 } 834 goto out; 835 } 836 837 if (cq->is_kernel) { 838 struct mthca_cq_buf tbuf; 839 int tcqe; 840 841 spin_lock_irq(&cq->lock); 842 if (cq->resize_buf->state == CQ_RESIZE_READY) { 843 mthca_cq_resize_copy_cqes(cq); 844 tbuf = cq->buf; 845 tcqe = cq->ibcq.cqe; 846 cq->buf = cq->resize_buf->buf; 847 cq->ibcq.cqe = cq->resize_buf->cqe; 848 } else { 849 tbuf = cq->resize_buf->buf; 850 tcqe = cq->resize_buf->cqe; 851 } 852 853 kfree(cq->resize_buf); 854 cq->resize_buf = NULL; 855 spin_unlock_irq(&cq->lock); 856 857 mthca_free_cq_buf(dev, &tbuf, tcqe); 858 } else 859 ibcq->cqe = entries - 1; 860 861out: 862 mutex_unlock(&cq->mutex); 863 864 return ret; 865} 866 867static int mthca_destroy_cq(struct ib_cq *cq) 868{ 869 if (cq->uobject) { 870 mthca_unmap_user_db(to_mdev(cq->device), 871 &to_mucontext(cq->uobject->context)->uar, 872 to_mucontext(cq->uobject->context)->db_tab, 873 to_mcq(cq)->arm_db_index); 874 mthca_unmap_user_db(to_mdev(cq->device), 875 &to_mucontext(cq->uobject->context)->uar, 876 to_mucontext(cq->uobject->context)->db_tab, 877 to_mcq(cq)->set_ci_db_index); 878 } 879 mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); 880 kfree(cq); 881 882 return 0; 883} 884 885static inline u32 convert_access(int acc) 886{ 887 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | 888 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | 889 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | 890 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | 891 MTHCA_MPT_FLAG_LOCAL_READ; 892} 893 894static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) 895{ 896 struct mthca_mr *mr; 897 int err; 898 899 mr = kmalloc(sizeof *mr, GFP_KERNEL); 900 if (!mr) 901 return ERR_PTR(-ENOMEM); 902 903 err = mthca_mr_alloc_notrans(to_mdev(pd->device), 904 to_mpd(pd)->pd_num, 905 convert_access(acc), mr); 906 907 if (err) { 908 kfree(mr); 909 return ERR_PTR(err); 910 } 911 912 mr->umem = NULL; 913 914 return &mr->ibmr; 915} 916 917static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, 918 struct ib_phys_buf *buffer_list, 919 int num_phys_buf, 920 int acc, 921 u64 *iova_start) 922{ 923 struct mthca_mr *mr; 924 u64 *page_list; 925 u64 total_size; 926 u64 mask; 927 int shift; 928 int npages; 929 int err; 930 int i, j, n; 931 932 /* First check that we have enough alignment */ 933 if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) 934 return ERR_PTR(-EINVAL); 935 936 mask = 0; 937 total_size = 0; 938 for (i = 0; i < num_phys_buf; ++i) { 939 if (i != 0) 940 mask |= buffer_list[i].addr; 941 if (i != num_phys_buf - 1) 942 mask |= buffer_list[i].addr + buffer_list[i].size; 943 944 total_size += buffer_list[i].size; 945 } 946 947 if (mask & ~PAGE_MASK) 948 return ERR_PTR(-EINVAL); 949 950 /* Find largest page shift we can use to cover buffers */ 951 for (shift = PAGE_SHIFT; shift < 31; ++shift) 952 if (num_phys_buf > 1) { 953 if ((1ULL << shift) & mask) 954 break; 955 } else { 956 if (1ULL << shift >= 957 buffer_list[0].size + 958 (buffer_list[0].addr & ((1ULL << shift) - 1))) 959 break; 960 } 961 962 buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); 963 buffer_list[0].addr &= ~0ull << shift; 964 965 mr = kmalloc(sizeof *mr, GFP_KERNEL); 966 if (!mr) 967 return ERR_PTR(-ENOMEM); 968 969 npages = 0; 970 for (i = 0; i < num_phys_buf; ++i) 971 npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 972 973 if (!npages) 974 return &mr->ibmr; 975 976 page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); 977 if (!page_list) { 978 kfree(mr); 979 return ERR_PTR(-ENOMEM); 980 } 981 982 n = 0; 983 for (i = 0; i < num_phys_buf; ++i) 984 for (j = 0; 985 j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 986 ++j) 987 page_list[n++] = buffer_list[i].addr + ((u64) j << shift); 988 989 mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " 990 "in PD %x; shift %d, npages %d.\n", 991 (unsigned long long) buffer_list[0].addr, 992 (unsigned long long) *iova_start, 993 to_mpd(pd)->pd_num, 994 shift, npages); 995 996 err = mthca_mr_alloc_phys(to_mdev(pd->device), 997 to_mpd(pd)->pd_num, 998 page_list, shift, npages, 999 *iova_start, total_size, 1000 convert_access(acc), mr); 1001 1002 if (err) { 1003 kfree(page_list); 1004 kfree(mr); 1005 return ERR_PTR(err); 1006 } 1007 1008 kfree(page_list); 1009 mr->umem = NULL; 1010 1011 return &mr->ibmr; 1012} 1013 1014static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 1015 u64 virt, int acc, struct ib_udata *udata) 1016{ 1017 struct mthca_dev *dev = to_mdev(pd->device); 1018 struct ib_umem_chunk *chunk; 1019 struct mthca_mr *mr; 1020 u64 *pages; 1021 int shift, n, len; 1022 int i, j, k; 1023 int err = 0; 1024 int write_mtt_size; 1025 1026 mr = kmalloc(sizeof *mr, GFP_KERNEL); 1027 if (!mr) 1028 return ERR_PTR(-ENOMEM); 1029 1030 mr->umem = ib_umem_get(pd->uobject->context, start, length, acc); 1031 if (IS_ERR(mr->umem)) { 1032 err = PTR_ERR(mr->umem); 1033 goto err; 1034 } 1035 1036 shift = ffs(mr->umem->page_size) - 1; 1037 1038 n = 0; 1039 list_for_each_entry(chunk, &mr->umem->chunk_list, list) 1040 n += chunk->nents; 1041 1042 mr->mtt = mthca_alloc_mtt(dev, n); 1043 if (IS_ERR(mr->mtt)) { 1044 err = PTR_ERR(mr->mtt); 1045 goto err_umem; 1046 } 1047 1048 pages = (u64 *) __get_free_page(GFP_KERNEL); 1049 if (!pages) { 1050 err = -ENOMEM; 1051 goto err_mtt; 1052 } 1053 1054 i = n = 0; 1055 1056 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); 1057 1058 list_for_each_entry(chunk, &mr->umem->chunk_list, list) 1059 for (j = 0; j < chunk->nmap; ++j) { 1060 len = sg_dma_len(&chunk->page_list[j]) >> shift; 1061 for (k = 0; k < len; ++k) { 1062 pages[i++] = sg_dma_address(&chunk->page_list[j]) + 1063 mr->umem->page_size * k; 1064 /* 1065 * Be friendly to write_mtt and pass it chunks 1066 * of appropriate size. 1067 */ 1068 if (i == write_mtt_size) { 1069 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1070 if (err) 1071 goto mtt_done; 1072 n += i; 1073 i = 0; 1074 } 1075 } 1076 } 1077 1078 if (i) 1079 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1080mtt_done: 1081 free_page((unsigned long) pages); 1082 if (err) 1083 goto err_mtt; 1084 1085 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, 1086 convert_access(acc), mr); 1087 1088 if (err) 1089 goto err_mtt; 1090 1091 return &mr->ibmr; 1092 1093err_mtt: 1094 mthca_free_mtt(dev, mr->mtt); 1095 1096err_umem: 1097 ib_umem_release(mr->umem); 1098 1099err: 1100 kfree(mr); 1101 return ERR_PTR(err); 1102} 1103 1104static int mthca_dereg_mr(struct ib_mr *mr) 1105{ 1106 struct mthca_mr *mmr = to_mmr(mr); 1107 1108 mthca_free_mr(to_mdev(mr->device), mmr); 1109 if (mmr->umem) 1110 ib_umem_release(mmr->umem); 1111 kfree(mmr); 1112 1113 return 0; 1114} 1115 1116static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, 1117 struct ib_fmr_attr *fmr_attr) 1118{ 1119 struct mthca_fmr *fmr; 1120 int err; 1121 1122 fmr = kmalloc(sizeof *fmr, GFP_KERNEL); 1123 if (!fmr) 1124 return ERR_PTR(-ENOMEM); 1125 1126 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); 1127 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, 1128 convert_access(mr_access_flags), fmr); 1129 1130 if (err) { 1131 kfree(fmr); 1132 return ERR_PTR(err); 1133 } 1134 1135 return &fmr->ibmr; 1136} 1137 1138static int mthca_dealloc_fmr(struct ib_fmr *fmr) 1139{ 1140 struct mthca_fmr *mfmr = to_mfmr(fmr); 1141 int err; 1142 1143 err = mthca_free_fmr(to_mdev(fmr->device), mfmr); 1144 if (err) 1145 return err; 1146 1147 kfree(mfmr); 1148 return 0; 1149} 1150 1151static int mthca_unmap_fmr(struct list_head *fmr_list) 1152{ 1153 struct ib_fmr *fmr; 1154 int err; 1155 u8 status; 1156 struct mthca_dev *mdev = NULL; 1157 1158 list_for_each_entry(fmr, fmr_list, list) { 1159 if (mdev && to_mdev(fmr->device) != mdev) 1160 return -EINVAL; 1161 mdev = to_mdev(fmr->device); 1162 } 1163 1164 if (!mdev) 1165 return 0; 1166 1167 if (mthca_is_memfree(mdev)) { 1168 list_for_each_entry(fmr, fmr_list, list) 1169 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); 1170 1171 wmb(); 1172 } else 1173 list_for_each_entry(fmr, fmr_list, list) 1174 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); 1175 1176 err = mthca_SYNC_TPT(mdev, &status); 1177 if (err) 1178 return err; 1179 if (status) 1180 return -EINVAL; 1181 return 0; 1182} 1183 1184static ssize_t show_rev(struct class_device *cdev, char *buf) 1185{ 1186 struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); 1187 return sprintf(buf, "%x\n", dev->rev_id); 1188} 1189 1190static ssize_t show_fw_ver(struct class_device *cdev, char *buf) 1191{ 1192 struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); 1193 return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32), 1194 (int) (dev->fw_ver >> 16) & 0xffff, 1195 (int) dev->fw_ver & 0xffff); 1196} 1197 1198static ssize_t show_hca(struct class_device *cdev, char *buf) 1199{ 1200 struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); 1201 switch (dev->pdev->device) { 1202 case PCI_DEVICE_ID_MELLANOX_TAVOR: 1203 return sprintf(buf, "MT23108\n"); 1204 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: 1205 return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); 1206 case PCI_DEVICE_ID_MELLANOX_ARBEL: 1207 return sprintf(buf, "MT25208\n"); 1208 case PCI_DEVICE_ID_MELLANOX_SINAI: 1209 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: 1210 return sprintf(buf, "MT25204\n"); 1211 default: 1212 return sprintf(buf, "unknown\n"); 1213 } 1214} 1215 1216static ssize_t show_board(struct class_device *cdev, char *buf) 1217{ 1218 struct mthca_dev *dev = container_of(cdev, struct mthca_dev, ib_dev.class_dev); 1219 return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); 1220} 1221 1222static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 1223static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 1224static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 1225static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 1226 1227static struct class_device_attribute *mthca_class_attributes[] = { 1228 &class_device_attr_hw_rev, 1229 &class_device_attr_fw_ver, 1230 &class_device_attr_hca_type, 1231 &class_device_attr_board_id 1232}; 1233 1234static int mthca_init_node_data(struct mthca_dev *dev) 1235{ 1236 struct ib_smp *in_mad = NULL; 1237 struct ib_smp *out_mad = NULL; 1238 int err = -ENOMEM; 1239 u8 status; 1240 1241 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1242 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1243 if (!in_mad || !out_mad) 1244 goto out; 1245 1246 init_query_mad(in_mad); 1247 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1248 1249 err = mthca_MAD_IFC(dev, 1, 1, 1250 1, NULL, NULL, in_mad, out_mad, 1251 &status); 1252 if (err) 1253 goto out; 1254 if (status) { 1255 err = -EINVAL; 1256 goto out; 1257 } 1258 1259 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 1260 1261 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1262 1263 err = mthca_MAD_IFC(dev, 1, 1, 1264 1, NULL, NULL, in_mad, out_mad, 1265 &status); 1266 if (err) 1267 goto out; 1268 if (status) { 1269 err = -EINVAL; 1270 goto out; 1271 } 1272 1273 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1274 1275out: 1276 kfree(in_mad); 1277 kfree(out_mad); 1278 return err; 1279} 1280 1281int mthca_register_device(struct mthca_dev *dev) 1282{ 1283 int ret; 1284 int i; 1285 1286 ret = mthca_init_node_data(dev); 1287 if (ret) 1288 return ret; 1289 1290 strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); 1291 dev->ib_dev.owner = THIS_MODULE; 1292 1293 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; 1294 dev->ib_dev.uverbs_cmd_mask = 1295 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1296 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1297 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1298 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1299 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1300 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1301 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1302 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1303 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1304 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1305 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1306 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1307 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1308 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1309 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1310 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1311 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); 1312 dev->ib_dev.node_type = RDMA_NODE_IB_CA; 1313 dev->ib_dev.phys_port_cnt = dev->limits.num_ports; 1314 dev->ib_dev.num_comp_vectors = 1; 1315 dev->ib_dev.dma_device = &dev->pdev->dev; 1316 dev->ib_dev.query_device = mthca_query_device; 1317 dev->ib_dev.query_port = mthca_query_port; 1318 dev->ib_dev.modify_device = mthca_modify_device; 1319 dev->ib_dev.modify_port = mthca_modify_port; 1320 dev->ib_dev.query_pkey = mthca_query_pkey; 1321 dev->ib_dev.query_gid = mthca_query_gid; 1322 dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; 1323 dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; 1324 dev->ib_dev.mmap = mthca_mmap_uar; 1325 dev->ib_dev.alloc_pd = mthca_alloc_pd; 1326 dev->ib_dev.dealloc_pd = mthca_dealloc_pd; 1327 dev->ib_dev.create_ah = mthca_ah_create; 1328 dev->ib_dev.query_ah = mthca_ah_query; 1329 dev->ib_dev.destroy_ah = mthca_ah_destroy; 1330 1331 if (dev->mthca_flags & MTHCA_FLAG_SRQ) { 1332 dev->ib_dev.create_srq = mthca_create_srq; 1333 dev->ib_dev.modify_srq = mthca_modify_srq; 1334 dev->ib_dev.query_srq = mthca_query_srq; 1335 dev->ib_dev.destroy_srq = mthca_destroy_srq; 1336 dev->ib_dev.uverbs_cmd_mask |= 1337 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1338 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1339 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1340 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1341 1342 if (mthca_is_memfree(dev)) 1343 dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; 1344 else 1345 dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; 1346 } 1347 1348 dev->ib_dev.create_qp = mthca_create_qp; 1349 dev->ib_dev.modify_qp = mthca_modify_qp; 1350 dev->ib_dev.query_qp = mthca_query_qp; 1351 dev->ib_dev.destroy_qp = mthca_destroy_qp; 1352 dev->ib_dev.create_cq = mthca_create_cq; 1353 dev->ib_dev.resize_cq = mthca_resize_cq; 1354 dev->ib_dev.destroy_cq = mthca_destroy_cq; 1355 dev->ib_dev.poll_cq = mthca_poll_cq; 1356 dev->ib_dev.get_dma_mr = mthca_get_dma_mr; 1357 dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; 1358 dev->ib_dev.reg_user_mr = mthca_reg_user_mr; 1359 dev->ib_dev.dereg_mr = mthca_dereg_mr; 1360 1361 if (dev->mthca_flags & MTHCA_FLAG_FMR) { 1362 dev->ib_dev.alloc_fmr = mthca_alloc_fmr; 1363 dev->ib_dev.unmap_fmr = mthca_unmap_fmr; 1364 dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; 1365 if (mthca_is_memfree(dev)) 1366 dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; 1367 else 1368 dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; 1369 } 1370 1371 dev->ib_dev.attach_mcast = mthca_multicast_attach; 1372 dev->ib_dev.detach_mcast = mthca_multicast_detach; 1373 dev->ib_dev.process_mad = mthca_process_mad; 1374 1375 if (mthca_is_memfree(dev)) { 1376 dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; 1377 dev->ib_dev.post_send = mthca_arbel_post_send; 1378 dev->ib_dev.post_recv = mthca_arbel_post_receive; 1379 } else { 1380 dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; 1381 dev->ib_dev.post_send = mthca_tavor_post_send; 1382 dev->ib_dev.post_recv = mthca_tavor_post_receive; 1383 } 1384 1385 mutex_init(&dev->cap_mask_mutex); 1386 1387 ret = ib_register_device(&dev->ib_dev); 1388 if (ret) 1389 return ret; 1390 1391 for (i = 0; i < ARRAY_SIZE(mthca_class_attributes); ++i) { 1392 ret = class_device_create_file(&dev->ib_dev.class_dev, 1393 mthca_class_attributes[i]); 1394 if (ret) { 1395 ib_unregister_device(&dev->ib_dev); 1396 return ret; 1397 } 1398 } 1399 1400 mthca_start_catas_poll(dev); 1401 1402 return 0; 1403} 1404 1405void mthca_unregister_device(struct mthca_dev *dev) 1406{ 1407 mthca_stop_catas_poll(dev); 1408 ib_unregister_device(&dev->ib_dev); 1409} 1410