1/* 2 * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. 3 * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 4 * Copyright (c) 2005, 2006 Cisco Systems. All rights reserved. 5 * Copyright (c) 2005 Mellanox Technologies. All rights reserved. 6 * Copyright (c) 2004 Voltaire, Inc. All rights reserved. 7 * 8 * This software is available to you under a choice of one of two 9 * licenses. You may choose to be licensed under the terms of the GNU 10 * General Public License (GPL) Version 2, available from the file 11 * COPYING in the main directory of this source tree, or the 12 * OpenIB.org BSD license below: 13 * 14 * Redistribution and use in source and binary forms, with or 15 * without modification, are permitted provided that the following 16 * conditions are met: 17 * 18 * - Redistributions of source code must retain the above 19 * copyright notice, this list of conditions and the following 20 * disclaimer. 21 * 22 * - Redistributions in binary form must reproduce the above 23 * copyright notice, this list of conditions and the following 24 * disclaimer in the documentation and/or other materials 25 * provided with the distribution. 26 * 27 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 28 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 29 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 30 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 31 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 32 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 33 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 34 * SOFTWARE. 35 */ 36 37#include <rdma/ib_smi.h> 38#include <rdma/ib_umem.h> 39#include <rdma/ib_user_verbs.h> 40 41#include <linux/sched.h> 42#include <linux/mm.h> 43#include <linux/fs.h> 44 45#include "mthca_dev.h" 46#include "mthca_cmd.h" 47#include "mthca_user.h" 48#include "mthca_memfree.h" 49 50static void init_query_mad(struct ib_smp *mad) 51{ 52 mad->base_version = 1; 53 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 54 mad->class_version = 1; 55 mad->method = IB_MGMT_METHOD_GET; 56} 57 58static int mthca_query_device(struct ib_device *ibdev, 59 struct ib_device_attr *props) 60{ 61 struct ib_smp *in_mad = NULL; 62 struct ib_smp *out_mad = NULL; 63 int err = -ENOMEM; 64 struct mthca_dev *mdev = to_mdev(ibdev); 65 66 u8 status; 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 &status); 83 if (err) 84 goto out; 85 if (status) { 86 err = -EINVAL; 87 goto out; 88 } 89 90 props->device_cap_flags = mdev->device_cap_flags; 91 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 92 0xffffff; 93 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); 94 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); 95 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 96 97 props->max_mr_size = ~0ull; 98 props->page_size_cap = mdev->limits.page_size_cap; 99 props->max_qp = mdev->limits.num_qps - mdev->limits.reserved_qps; 100 props->max_qp_wr = mdev->limits.max_wqes; 101 props->max_sge = mdev->limits.max_sg; 102 props->max_cq = mdev->limits.num_cqs - mdev->limits.reserved_cqs; 103 props->max_cqe = mdev->limits.max_cqes; 104 props->max_mr = mdev->limits.num_mpts - mdev->limits.reserved_mrws; 105 props->max_pd = mdev->limits.num_pds - mdev->limits.reserved_pds; 106 props->max_qp_rd_atom = 1 << mdev->qp_table.rdb_shift; 107 props->max_qp_init_rd_atom = mdev->limits.max_qp_init_rdma; 108 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 109 props->max_srq = mdev->limits.num_srqs - mdev->limits.reserved_srqs; 110 props->max_srq_wr = mdev->limits.max_srq_wqes; 111 props->max_srq_sge = mdev->limits.max_srq_sge; 112 props->local_ca_ack_delay = mdev->limits.local_ca_ack_delay; 113 props->atomic_cap = mdev->limits.flags & DEV_LIM_FLAG_ATOMIC ? 114 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 115 props->max_pkeys = mdev->limits.pkey_table_len; 116 props->max_mcast_grp = mdev->limits.num_mgms + mdev->limits.num_amgms; 117 props->max_mcast_qp_attach = MTHCA_QP_PER_MGM; 118 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 119 props->max_mcast_grp; 120 /* 121 * If Sinai memory key optimization is being used, then only 122 * the 8-bit key portion will change. For other HCAs, the 123 * unused index bits will also be used for FMR remapping. 124 */ 125 if (mdev->mthca_flags & MTHCA_FLAG_SINAI_OPT) 126 props->max_map_per_fmr = 255; 127 else 128 props->max_map_per_fmr = 129 (1 << (32 - ilog2(mdev->limits.num_mpts))) - 1; 130 131 err = 0; 132 out: 133 kfree(in_mad); 134 kfree(out_mad); 135 return err; 136} 137 138static int mthca_query_port(struct ib_device *ibdev, 139 u8 port, struct ib_port_attr *props) 140{ 141 struct ib_smp *in_mad = NULL; 142 struct ib_smp *out_mad = NULL; 143 int err = -ENOMEM; 144 u8 status; 145 146 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 147 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 148 if (!in_mad || !out_mad) 149 goto out; 150 151 memset(props, 0, sizeof *props); 152 153 init_query_mad(in_mad); 154 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 155 in_mad->attr_mod = cpu_to_be32(port); 156 157 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 158 port, NULL, NULL, in_mad, out_mad, 159 &status); 160 if (err) 161 goto out; 162 if (status) { 163 err = -EINVAL; 164 goto out; 165 } 166 167 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 168 props->lmc = out_mad->data[34] & 0x7; 169 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 170 props->sm_sl = out_mad->data[36] & 0xf; 171 props->state = out_mad->data[32] & 0xf; 172 props->phys_state = out_mad->data[33] >> 4; 173 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 174 props->gid_tbl_len = to_mdev(ibdev)->limits.gid_table_len; 175 props->max_msg_sz = 0x80000000; 176 props->pkey_tbl_len = to_mdev(ibdev)->limits.pkey_table_len; 177 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 178 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 179 props->active_width = out_mad->data[31] & 0xf; 180 props->active_speed = out_mad->data[35] >> 4; 181 props->max_mtu = out_mad->data[41] & 0xf; 182 props->active_mtu = out_mad->data[36] >> 4; 183 props->subnet_timeout = out_mad->data[51] & 0x1f; 184 props->max_vl_num = out_mad->data[37] >> 4; 185 props->init_type_reply = out_mad->data[41] >> 4; 186 187 out: 188 kfree(in_mad); 189 kfree(out_mad); 190 return err; 191} 192 193static int mthca_modify_device(struct ib_device *ibdev, 194 int mask, 195 struct ib_device_modify *props) 196{ 197 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 198 return -EOPNOTSUPP; 199 200 if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 201 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 202 return -ERESTARTSYS; 203 memcpy(ibdev->node_desc, props->node_desc, 64); 204 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 205 } 206 207 return 0; 208} 209 210static int mthca_modify_port(struct ib_device *ibdev, 211 u8 port, int port_modify_mask, 212 struct ib_port_modify *props) 213{ 214 struct mthca_set_ib_param set_ib; 215 struct ib_port_attr attr; 216 int err; 217 u8 status; 218 219 if (mutex_lock_interruptible(&to_mdev(ibdev)->cap_mask_mutex)) 220 return -ERESTARTSYS; 221 222 err = mthca_query_port(ibdev, port, &attr); 223 if (err) 224 goto out; 225 226 set_ib.set_si_guid = 0; 227 set_ib.reset_qkey_viol = !!(port_modify_mask & IB_PORT_RESET_QKEY_CNTR); 228 229 set_ib.cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 230 ~props->clr_port_cap_mask; 231 232 err = mthca_SET_IB(to_mdev(ibdev), &set_ib, port, &status); 233 if (err) 234 goto out; 235 if (status) { 236 err = -EINVAL; 237 goto out; 238 } 239 240out: 241 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 242 return err; 243} 244 245static int mthca_query_pkey(struct ib_device *ibdev, 246 u8 port, u16 index, u16 *pkey) 247{ 248 struct ib_smp *in_mad = NULL; 249 struct ib_smp *out_mad = NULL; 250 int err = -ENOMEM; 251 u8 status; 252 253 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 254 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 255 if (!in_mad || !out_mad) 256 goto out; 257 258 init_query_mad(in_mad); 259 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 260 in_mad->attr_mod = cpu_to_be32(index / 32); 261 262 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 263 port, NULL, NULL, in_mad, out_mad, 264 &status); 265 if (err) 266 goto out; 267 if (status) { 268 err = -EINVAL; 269 goto out; 270 } 271 272 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 273 274 out: 275 kfree(in_mad); 276 kfree(out_mad); 277 return err; 278} 279 280static int mthca_query_gid(struct ib_device *ibdev, u8 port, 281 int index, union ib_gid *gid) 282{ 283 struct ib_smp *in_mad = NULL; 284 struct ib_smp *out_mad = NULL; 285 int err = -ENOMEM; 286 u8 status; 287 288 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 289 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 290 if (!in_mad || !out_mad) 291 goto out; 292 293 init_query_mad(in_mad); 294 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 295 in_mad->attr_mod = cpu_to_be32(port); 296 297 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 298 port, NULL, NULL, in_mad, out_mad, 299 &status); 300 if (err) 301 goto out; 302 if (status) { 303 err = -EINVAL; 304 goto out; 305 } 306 307 memcpy(gid->raw, out_mad->data + 8, 8); 308 309 init_query_mad(in_mad); 310 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 311 in_mad->attr_mod = cpu_to_be32(index / 8); 312 313 err = mthca_MAD_IFC(to_mdev(ibdev), 1, 1, 314 port, NULL, NULL, in_mad, out_mad, 315 &status); 316 if (err) 317 goto out; 318 if (status) { 319 err = -EINVAL; 320 goto out; 321 } 322 323 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 324 325 out: 326 kfree(in_mad); 327 kfree(out_mad); 328 return err; 329} 330 331static struct ib_ucontext *mthca_alloc_ucontext(struct ib_device *ibdev, 332 struct ib_udata *udata) 333{ 334 struct mthca_alloc_ucontext_resp uresp; 335 struct mthca_ucontext *context; 336 int err; 337 338 if (!(to_mdev(ibdev)->active)) 339 return ERR_PTR(-EAGAIN); 340 341 memset(&uresp, 0, sizeof uresp); 342 343 uresp.qp_tab_size = to_mdev(ibdev)->limits.num_qps; 344 if (mthca_is_memfree(to_mdev(ibdev))) 345 uresp.uarc_size = to_mdev(ibdev)->uar_table.uarc_size; 346 else 347 uresp.uarc_size = 0; 348 349 context = kmalloc(sizeof *context, GFP_KERNEL); 350 if (!context) 351 return ERR_PTR(-ENOMEM); 352 353 err = mthca_uar_alloc(to_mdev(ibdev), &context->uar); 354 if (err) { 355 kfree(context); 356 return ERR_PTR(err); 357 } 358 359 context->db_tab = mthca_init_user_db_tab(to_mdev(ibdev)); 360 if (IS_ERR(context->db_tab)) { 361 err = PTR_ERR(context->db_tab); 362 mthca_uar_free(to_mdev(ibdev), &context->uar); 363 kfree(context); 364 return ERR_PTR(err); 365 } 366 367 if (ib_copy_to_udata(udata, &uresp, sizeof uresp)) { 368 mthca_cleanup_user_db_tab(to_mdev(ibdev), &context->uar, context->db_tab); 369 mthca_uar_free(to_mdev(ibdev), &context->uar); 370 kfree(context); 371 return ERR_PTR(-EFAULT); 372 } 373 374 context->reg_mr_warned = 0; 375 376 return &context->ibucontext; 377} 378 379static int mthca_dealloc_ucontext(struct ib_ucontext *context) 380{ 381 mthca_cleanup_user_db_tab(to_mdev(context->device), &to_mucontext(context)->uar, 382 to_mucontext(context)->db_tab); 383 mthca_uar_free(to_mdev(context->device), &to_mucontext(context)->uar); 384 kfree(to_mucontext(context)); 385 386 return 0; 387} 388 389static int mthca_mmap_uar(struct ib_ucontext *context, 390 struct vm_area_struct *vma) 391{ 392 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 393 return -EINVAL; 394 395 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 396 397 if (io_remap_pfn_range(vma, vma->vm_start, 398 to_mucontext(context)->uar.pfn, 399 PAGE_SIZE, vma->vm_page_prot)) 400 return -EAGAIN; 401 402 return 0; 403} 404 405static struct ib_pd *mthca_alloc_pd(struct ib_device *ibdev, 406 struct ib_ucontext *context, 407 struct ib_udata *udata) 408{ 409 struct mthca_pd *pd; 410 int err; 411 412 pd = kmalloc(sizeof *pd, GFP_KERNEL); 413 if (!pd) 414 return ERR_PTR(-ENOMEM); 415 416 err = mthca_pd_alloc(to_mdev(ibdev), !context, pd); 417 if (err) { 418 kfree(pd); 419 return ERR_PTR(err); 420 } 421 422 if (context) { 423 if (ib_copy_to_udata(udata, &pd->pd_num, sizeof (__u32))) { 424 mthca_pd_free(to_mdev(ibdev), pd); 425 kfree(pd); 426 return ERR_PTR(-EFAULT); 427 } 428 } 429 430 return &pd->ibpd; 431} 432 433static int mthca_dealloc_pd(struct ib_pd *pd) 434{ 435 mthca_pd_free(to_mdev(pd->device), to_mpd(pd)); 436 kfree(pd); 437 438 return 0; 439} 440 441static struct ib_ah *mthca_ah_create(struct ib_pd *pd, 442 struct ib_ah_attr *ah_attr) 443{ 444 int err; 445 struct mthca_ah *ah; 446 447 ah = kmalloc(sizeof *ah, GFP_ATOMIC); 448 if (!ah) 449 return ERR_PTR(-ENOMEM); 450 451 err = mthca_create_ah(to_mdev(pd->device), to_mpd(pd), ah_attr, ah); 452 if (err) { 453 kfree(ah); 454 return ERR_PTR(err); 455 } 456 457 return &ah->ibah; 458} 459 460static int mthca_ah_destroy(struct ib_ah *ah) 461{ 462 mthca_destroy_ah(to_mdev(ah->device), to_mah(ah)); 463 kfree(ah); 464 465 return 0; 466} 467 468static struct ib_srq *mthca_create_srq(struct ib_pd *pd, 469 struct ib_srq_init_attr *init_attr, 470 struct ib_udata *udata) 471{ 472 struct mthca_create_srq ucmd; 473 struct mthca_ucontext *context = NULL; 474 struct mthca_srq *srq; 475 int err; 476 477 srq = kmalloc(sizeof *srq, GFP_KERNEL); 478 if (!srq) 479 return ERR_PTR(-ENOMEM); 480 481 if (pd->uobject) { 482 context = to_mucontext(pd->uobject->context); 483 484 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 485 err = -EFAULT; 486 goto err_free; 487 } 488 489 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 490 context->db_tab, ucmd.db_index, 491 ucmd.db_page); 492 493 if (err) 494 goto err_free; 495 496 srq->mr.ibmr.lkey = ucmd.lkey; 497 srq->db_index = ucmd.db_index; 498 } 499 500 err = mthca_alloc_srq(to_mdev(pd->device), to_mpd(pd), 501 &init_attr->attr, srq); 502 503 if (err && pd->uobject) 504 mthca_unmap_user_db(to_mdev(pd->device), &context->uar, 505 context->db_tab, ucmd.db_index); 506 507 if (err) 508 goto err_free; 509 510 if (context && ib_copy_to_udata(udata, &srq->srqn, sizeof (__u32))) { 511 mthca_free_srq(to_mdev(pd->device), srq); 512 err = -EFAULT; 513 goto err_free; 514 } 515 516 return &srq->ibsrq; 517 518err_free: 519 kfree(srq); 520 521 return ERR_PTR(err); 522} 523 524static int mthca_destroy_srq(struct ib_srq *srq) 525{ 526 struct mthca_ucontext *context; 527 528 if (srq->uobject) { 529 context = to_mucontext(srq->uobject->context); 530 531 mthca_unmap_user_db(to_mdev(srq->device), &context->uar, 532 context->db_tab, to_msrq(srq)->db_index); 533 } 534 535 mthca_free_srq(to_mdev(srq->device), to_msrq(srq)); 536 kfree(srq); 537 538 return 0; 539} 540 541static struct ib_qp *mthca_create_qp(struct ib_pd *pd, 542 struct ib_qp_init_attr *init_attr, 543 struct ib_udata *udata) 544{ 545 struct mthca_create_qp ucmd; 546 struct mthca_qp *qp; 547 int err; 548 549 if (init_attr->create_flags) 550 return ERR_PTR(-EINVAL); 551 552 switch (init_attr->qp_type) { 553 case IB_QPT_RC: 554 case IB_QPT_UC: 555 case IB_QPT_UD: 556 { 557 struct mthca_ucontext *context; 558 559 qp = kmalloc(sizeof *qp, GFP_KERNEL); 560 if (!qp) 561 return ERR_PTR(-ENOMEM); 562 563 if (pd->uobject) { 564 context = to_mucontext(pd->uobject->context); 565 566 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 567 kfree(qp); 568 return ERR_PTR(-EFAULT); 569 } 570 571 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 572 context->db_tab, 573 ucmd.sq_db_index, ucmd.sq_db_page); 574 if (err) { 575 kfree(qp); 576 return ERR_PTR(err); 577 } 578 579 err = mthca_map_user_db(to_mdev(pd->device), &context->uar, 580 context->db_tab, 581 ucmd.rq_db_index, ucmd.rq_db_page); 582 if (err) { 583 mthca_unmap_user_db(to_mdev(pd->device), 584 &context->uar, 585 context->db_tab, 586 ucmd.sq_db_index); 587 kfree(qp); 588 return ERR_PTR(err); 589 } 590 591 qp->mr.ibmr.lkey = ucmd.lkey; 592 qp->sq.db_index = ucmd.sq_db_index; 593 qp->rq.db_index = ucmd.rq_db_index; 594 } 595 596 err = mthca_alloc_qp(to_mdev(pd->device), to_mpd(pd), 597 to_mcq(init_attr->send_cq), 598 to_mcq(init_attr->recv_cq), 599 init_attr->qp_type, init_attr->sq_sig_type, 600 &init_attr->cap, qp); 601 602 if (err && pd->uobject) { 603 context = to_mucontext(pd->uobject->context); 604 605 mthca_unmap_user_db(to_mdev(pd->device), 606 &context->uar, 607 context->db_tab, 608 ucmd.sq_db_index); 609 mthca_unmap_user_db(to_mdev(pd->device), 610 &context->uar, 611 context->db_tab, 612 ucmd.rq_db_index); 613 } 614 615 qp->ibqp.qp_num = qp->qpn; 616 break; 617 } 618 case IB_QPT_SMI: 619 case IB_QPT_GSI: 620 { 621 /* Don't allow userspace to create special QPs */ 622 if (pd->uobject) 623 return ERR_PTR(-EINVAL); 624 625 qp = kmalloc(sizeof (struct mthca_sqp), GFP_KERNEL); 626 if (!qp) 627 return ERR_PTR(-ENOMEM); 628 629 qp->ibqp.qp_num = init_attr->qp_type == IB_QPT_SMI ? 0 : 1; 630 631 err = mthca_alloc_sqp(to_mdev(pd->device), to_mpd(pd), 632 to_mcq(init_attr->send_cq), 633 to_mcq(init_attr->recv_cq), 634 init_attr->sq_sig_type, &init_attr->cap, 635 qp->ibqp.qp_num, init_attr->port_num, 636 to_msqp(qp)); 637 break; 638 } 639 default: 640 /* Don't support raw QPs */ 641 return ERR_PTR(-ENOSYS); 642 } 643 644 if (err) { 645 kfree(qp); 646 return ERR_PTR(err); 647 } 648 649 init_attr->cap.max_send_wr = qp->sq.max; 650 init_attr->cap.max_recv_wr = qp->rq.max; 651 init_attr->cap.max_send_sge = qp->sq.max_gs; 652 init_attr->cap.max_recv_sge = qp->rq.max_gs; 653 init_attr->cap.max_inline_data = qp->max_inline_data; 654 655 return &qp->ibqp; 656} 657 658static int mthca_destroy_qp(struct ib_qp *qp) 659{ 660 if (qp->uobject) { 661 mthca_unmap_user_db(to_mdev(qp->device), 662 &to_mucontext(qp->uobject->context)->uar, 663 to_mucontext(qp->uobject->context)->db_tab, 664 to_mqp(qp)->sq.db_index); 665 mthca_unmap_user_db(to_mdev(qp->device), 666 &to_mucontext(qp->uobject->context)->uar, 667 to_mucontext(qp->uobject->context)->db_tab, 668 to_mqp(qp)->rq.db_index); 669 } 670 mthca_free_qp(to_mdev(qp->device), to_mqp(qp)); 671 kfree(qp); 672 return 0; 673} 674 675static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries, 676 int comp_vector, 677 struct ib_ucontext *context, 678 struct ib_udata *udata) 679{ 680 struct mthca_create_cq ucmd; 681 struct mthca_cq *cq; 682 int nent; 683 int err; 684 685 if (entries < 1 || entries > to_mdev(ibdev)->limits.max_cqes) 686 return ERR_PTR(-EINVAL); 687 688 if (context) { 689 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 690 return ERR_PTR(-EFAULT); 691 692 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 693 to_mucontext(context)->db_tab, 694 ucmd.set_db_index, ucmd.set_db_page); 695 if (err) 696 return ERR_PTR(err); 697 698 err = mthca_map_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 699 to_mucontext(context)->db_tab, 700 ucmd.arm_db_index, ucmd.arm_db_page); 701 if (err) 702 goto err_unmap_set; 703 } 704 705 cq = kmalloc(sizeof *cq, GFP_KERNEL); 706 if (!cq) { 707 err = -ENOMEM; 708 goto err_unmap_arm; 709 } 710 711 if (context) { 712 cq->buf.mr.ibmr.lkey = ucmd.lkey; 713 cq->set_ci_db_index = ucmd.set_db_index; 714 cq->arm_db_index = ucmd.arm_db_index; 715 } 716 717 for (nent = 1; nent <= entries; nent <<= 1) 718 ; /* nothing */ 719 720 err = mthca_init_cq(to_mdev(ibdev), nent, 721 context ? to_mucontext(context) : NULL, 722 context ? ucmd.pdn : to_mdev(ibdev)->driver_pd.pd_num, 723 cq); 724 if (err) 725 goto err_free; 726 727 if (context && ib_copy_to_udata(udata, &cq->cqn, sizeof (__u32))) { 728 mthca_free_cq(to_mdev(ibdev), cq); 729 goto err_free; 730 } 731 732 cq->resize_buf = NULL; 733 734 return &cq->ibcq; 735 736err_free: 737 kfree(cq); 738 739err_unmap_arm: 740 if (context) 741 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 742 to_mucontext(context)->db_tab, ucmd.arm_db_index); 743 744err_unmap_set: 745 if (context) 746 mthca_unmap_user_db(to_mdev(ibdev), &to_mucontext(context)->uar, 747 to_mucontext(context)->db_tab, ucmd.set_db_index); 748 749 return ERR_PTR(err); 750} 751 752static int mthca_alloc_resize_buf(struct mthca_dev *dev, struct mthca_cq *cq, 753 int entries) 754{ 755 int ret; 756 757 spin_lock_irq(&cq->lock); 758 if (cq->resize_buf) { 759 ret = -EBUSY; 760 goto unlock; 761 } 762 763 cq->resize_buf = kmalloc(sizeof *cq->resize_buf, GFP_ATOMIC); 764 if (!cq->resize_buf) { 765 ret = -ENOMEM; 766 goto unlock; 767 } 768 769 cq->resize_buf->state = CQ_RESIZE_ALLOC; 770 771 ret = 0; 772 773unlock: 774 spin_unlock_irq(&cq->lock); 775 776 if (ret) 777 return ret; 778 779 ret = mthca_alloc_cq_buf(dev, &cq->resize_buf->buf, entries); 780 if (ret) { 781 spin_lock_irq(&cq->lock); 782 kfree(cq->resize_buf); 783 cq->resize_buf = NULL; 784 spin_unlock_irq(&cq->lock); 785 return ret; 786 } 787 788 cq->resize_buf->cqe = entries - 1; 789 790 spin_lock_irq(&cq->lock); 791 cq->resize_buf->state = CQ_RESIZE_READY; 792 spin_unlock_irq(&cq->lock); 793 794 return 0; 795} 796 797static int mthca_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) 798{ 799 struct mthca_dev *dev = to_mdev(ibcq->device); 800 struct mthca_cq *cq = to_mcq(ibcq); 801 struct mthca_resize_cq ucmd; 802 u32 lkey; 803 u8 status; 804 int ret; 805 806 if (entries < 1 || entries > dev->limits.max_cqes) 807 return -EINVAL; 808 809 mutex_lock(&cq->mutex); 810 811 entries = roundup_pow_of_two(entries + 1); 812 if (entries == ibcq->cqe + 1) { 813 ret = 0; 814 goto out; 815 } 816 817 if (cq->is_kernel) { 818 ret = mthca_alloc_resize_buf(dev, cq, entries); 819 if (ret) 820 goto out; 821 lkey = cq->resize_buf->buf.mr.ibmr.lkey; 822 } else { 823 if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) { 824 ret = -EFAULT; 825 goto out; 826 } 827 lkey = ucmd.lkey; 828 } 829 830 ret = mthca_RESIZE_CQ(dev, cq->cqn, lkey, ilog2(entries), &status); 831 if (status) 832 ret = -EINVAL; 833 834 if (ret) { 835 if (cq->resize_buf) { 836 mthca_free_cq_buf(dev, &cq->resize_buf->buf, 837 cq->resize_buf->cqe); 838 kfree(cq->resize_buf); 839 spin_lock_irq(&cq->lock); 840 cq->resize_buf = NULL; 841 spin_unlock_irq(&cq->lock); 842 } 843 goto out; 844 } 845 846 if (cq->is_kernel) { 847 struct mthca_cq_buf tbuf; 848 int tcqe; 849 850 spin_lock_irq(&cq->lock); 851 if (cq->resize_buf->state == CQ_RESIZE_READY) { 852 mthca_cq_resize_copy_cqes(cq); 853 tbuf = cq->buf; 854 tcqe = cq->ibcq.cqe; 855 cq->buf = cq->resize_buf->buf; 856 cq->ibcq.cqe = cq->resize_buf->cqe; 857 } else { 858 tbuf = cq->resize_buf->buf; 859 tcqe = cq->resize_buf->cqe; 860 } 861 862 kfree(cq->resize_buf); 863 cq->resize_buf = NULL; 864 spin_unlock_irq(&cq->lock); 865 866 mthca_free_cq_buf(dev, &tbuf, tcqe); 867 } else 868 ibcq->cqe = entries - 1; 869 870out: 871 mutex_unlock(&cq->mutex); 872 873 return ret; 874} 875 876static int mthca_destroy_cq(struct ib_cq *cq) 877{ 878 if (cq->uobject) { 879 mthca_unmap_user_db(to_mdev(cq->device), 880 &to_mucontext(cq->uobject->context)->uar, 881 to_mucontext(cq->uobject->context)->db_tab, 882 to_mcq(cq)->arm_db_index); 883 mthca_unmap_user_db(to_mdev(cq->device), 884 &to_mucontext(cq->uobject->context)->uar, 885 to_mucontext(cq->uobject->context)->db_tab, 886 to_mcq(cq)->set_ci_db_index); 887 } 888 mthca_free_cq(to_mdev(cq->device), to_mcq(cq)); 889 kfree(cq); 890 891 return 0; 892} 893 894static inline u32 convert_access(int acc) 895{ 896 return (acc & IB_ACCESS_REMOTE_ATOMIC ? MTHCA_MPT_FLAG_ATOMIC : 0) | 897 (acc & IB_ACCESS_REMOTE_WRITE ? MTHCA_MPT_FLAG_REMOTE_WRITE : 0) | 898 (acc & IB_ACCESS_REMOTE_READ ? MTHCA_MPT_FLAG_REMOTE_READ : 0) | 899 (acc & IB_ACCESS_LOCAL_WRITE ? MTHCA_MPT_FLAG_LOCAL_WRITE : 0) | 900 MTHCA_MPT_FLAG_LOCAL_READ; 901} 902 903static struct ib_mr *mthca_get_dma_mr(struct ib_pd *pd, int acc) 904{ 905 struct mthca_mr *mr; 906 int err; 907 908 mr = kmalloc(sizeof *mr, GFP_KERNEL); 909 if (!mr) 910 return ERR_PTR(-ENOMEM); 911 912 err = mthca_mr_alloc_notrans(to_mdev(pd->device), 913 to_mpd(pd)->pd_num, 914 convert_access(acc), mr); 915 916 if (err) { 917 kfree(mr); 918 return ERR_PTR(err); 919 } 920 921 mr->umem = NULL; 922 923 return &mr->ibmr; 924} 925 926static struct ib_mr *mthca_reg_phys_mr(struct ib_pd *pd, 927 struct ib_phys_buf *buffer_list, 928 int num_phys_buf, 929 int acc, 930 u64 *iova_start) 931{ 932 struct mthca_mr *mr; 933 u64 *page_list; 934 u64 total_size; 935 unsigned long mask; 936 int shift; 937 int npages; 938 int err; 939 int i, j, n; 940 941 mask = buffer_list[0].addr ^ *iova_start; 942 total_size = 0; 943 for (i = 0; i < num_phys_buf; ++i) { 944 if (i != 0) 945 mask |= buffer_list[i].addr; 946 if (i != num_phys_buf - 1) 947 mask |= buffer_list[i].addr + buffer_list[i].size; 948 949 total_size += buffer_list[i].size; 950 } 951 952 if (mask & ~PAGE_MASK) 953 return ERR_PTR(-EINVAL); 954 955 shift = __ffs(mask | 1 << 31); 956 957 buffer_list[0].size += buffer_list[0].addr & ((1ULL << shift) - 1); 958 buffer_list[0].addr &= ~0ull << shift; 959 960 mr = kmalloc(sizeof *mr, GFP_KERNEL); 961 if (!mr) 962 return ERR_PTR(-ENOMEM); 963 964 npages = 0; 965 for (i = 0; i < num_phys_buf; ++i) 966 npages += (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 967 968 if (!npages) 969 return &mr->ibmr; 970 971 page_list = kmalloc(npages * sizeof *page_list, GFP_KERNEL); 972 if (!page_list) { 973 kfree(mr); 974 return ERR_PTR(-ENOMEM); 975 } 976 977 n = 0; 978 for (i = 0; i < num_phys_buf; ++i) 979 for (j = 0; 980 j < (buffer_list[i].size + (1ULL << shift) - 1) >> shift; 981 ++j) 982 page_list[n++] = buffer_list[i].addr + ((u64) j << shift); 983 984 mthca_dbg(to_mdev(pd->device), "Registering memory at %llx (iova %llx) " 985 "in PD %x; shift %d, npages %d.\n", 986 (unsigned long long) buffer_list[0].addr, 987 (unsigned long long) *iova_start, 988 to_mpd(pd)->pd_num, 989 shift, npages); 990 991 err = mthca_mr_alloc_phys(to_mdev(pd->device), 992 to_mpd(pd)->pd_num, 993 page_list, shift, npages, 994 *iova_start, total_size, 995 convert_access(acc), mr); 996 997 if (err) { 998 kfree(page_list); 999 kfree(mr); 1000 return ERR_PTR(err); 1001 } 1002 1003 kfree(page_list); 1004 mr->umem = NULL; 1005 1006 return &mr->ibmr; 1007} 1008 1009static struct ib_mr *mthca_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 1010 u64 virt, int acc, struct ib_udata *udata, int mr_id) 1011{ 1012 struct mthca_dev *dev = to_mdev(pd->device); 1013 struct ib_umem_chunk *chunk; 1014 struct mthca_mr *mr; 1015 struct mthca_reg_mr ucmd; 1016 u64 *pages; 1017 int shift, n, len; 1018 int i, j, k; 1019 int err = 0; 1020 int write_mtt_size; 1021 1022 if (udata->inlen - sizeof (struct ib_uverbs_cmd_hdr) < sizeof ucmd) { 1023 if (!to_mucontext(pd->uobject->context)->reg_mr_warned) { 1024 mthca_warn(dev, "Process '%s' did not pass in MR attrs.\n", 1025 curproc->p_comm); 1026 mthca_warn(dev, " Update libmthca to fix this.\n"); 1027 } 1028 ++to_mucontext(pd->uobject->context)->reg_mr_warned; 1029 ucmd.mr_attrs = 0; 1030 } else if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) 1031 return ERR_PTR(-EFAULT); 1032 1033 mr = kmalloc(sizeof *mr, GFP_KERNEL); 1034 if (!mr) 1035 return ERR_PTR(-ENOMEM); 1036 1037 mr->umem = ib_umem_get(pd->uobject->context, start, length, acc, 1038 ucmd.mr_attrs & MTHCA_MR_DMASYNC); 1039 1040 if (IS_ERR(mr->umem)) { 1041 err = PTR_ERR(mr->umem); 1042 goto err; 1043 } 1044 1045 shift = ffs(mr->umem->page_size) - 1; 1046 1047 n = 0; 1048 list_for_each_entry(chunk, &mr->umem->chunk_list, list) 1049 n += chunk->nents; 1050 1051 mr->mtt = mthca_alloc_mtt(dev, n); 1052 if (IS_ERR(mr->mtt)) { 1053 err = PTR_ERR(mr->mtt); 1054 goto err_umem; 1055 } 1056 1057 pages = (u64 *) __get_free_page(GFP_KERNEL); 1058 if (!pages) { 1059 err = -ENOMEM; 1060 goto err_mtt; 1061 } 1062 1063 i = n = 0; 1064 1065 write_mtt_size = min(mthca_write_mtt_size(dev), (int) (PAGE_SIZE / sizeof *pages)); 1066 1067 list_for_each_entry(chunk, &mr->umem->chunk_list, list) 1068 for (j = 0; j < chunk->nmap; ++j) { 1069 len = sg_dma_len(&chunk->page_list[j]) >> shift; 1070 for (k = 0; k < len; ++k) { 1071 pages[i++] = sg_dma_address(&chunk->page_list[j]) + 1072 mr->umem->page_size * k; 1073 /* 1074 * Be friendly to write_mtt and pass it chunks 1075 * of appropriate size. 1076 */ 1077 if (i == write_mtt_size) { 1078 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1079 if (err) 1080 goto mtt_done; 1081 n += i; 1082 i = 0; 1083 } 1084 } 1085 } 1086 1087 if (i) 1088 err = mthca_write_mtt(dev, mr->mtt, n, pages, i); 1089mtt_done: 1090 free_page((unsigned long) pages); 1091 if (err) 1092 goto err_mtt; 1093 1094 err = mthca_mr_alloc(dev, to_mpd(pd)->pd_num, shift, virt, length, 1095 convert_access(acc), mr); 1096 1097 if (err) 1098 goto err_mtt; 1099 1100 return &mr->ibmr; 1101 1102err_mtt: 1103 mthca_free_mtt(dev, mr->mtt); 1104 1105err_umem: 1106 ib_umem_release(mr->umem); 1107 1108err: 1109 kfree(mr); 1110 return ERR_PTR(err); 1111} 1112 1113static int mthca_dereg_mr(struct ib_mr *mr) 1114{ 1115 struct mthca_mr *mmr = to_mmr(mr); 1116 1117 mthca_free_mr(to_mdev(mr->device), mmr); 1118 if (mmr->umem) 1119 ib_umem_release(mmr->umem); 1120 kfree(mmr); 1121 1122 return 0; 1123} 1124 1125static struct ib_fmr *mthca_alloc_fmr(struct ib_pd *pd, int mr_access_flags, 1126 struct ib_fmr_attr *fmr_attr) 1127{ 1128 struct mthca_fmr *fmr; 1129 int err; 1130 1131 fmr = kmalloc(sizeof *fmr, GFP_KERNEL); 1132 if (!fmr) 1133 return ERR_PTR(-ENOMEM); 1134 1135 memcpy(&fmr->attr, fmr_attr, sizeof *fmr_attr); 1136 err = mthca_fmr_alloc(to_mdev(pd->device), to_mpd(pd)->pd_num, 1137 convert_access(mr_access_flags), fmr); 1138 1139 if (err) { 1140 kfree(fmr); 1141 return ERR_PTR(err); 1142 } 1143 1144 return &fmr->ibmr; 1145} 1146 1147static int mthca_dealloc_fmr(struct ib_fmr *fmr) 1148{ 1149 struct mthca_fmr *mfmr = to_mfmr(fmr); 1150 int err; 1151 1152 err = mthca_free_fmr(to_mdev(fmr->device), mfmr); 1153 if (err) 1154 return err; 1155 1156 kfree(mfmr); 1157 return 0; 1158} 1159 1160static int mthca_unmap_fmr(struct list_head *fmr_list) 1161{ 1162 struct ib_fmr *fmr; 1163 int err; 1164 u8 status; 1165 struct mthca_dev *mdev = NULL; 1166 1167 list_for_each_entry(fmr, fmr_list, list) { 1168 if (mdev && to_mdev(fmr->device) != mdev) 1169 return -EINVAL; 1170 mdev = to_mdev(fmr->device); 1171 } 1172 1173 if (!mdev) 1174 return 0; 1175 1176 if (mthca_is_memfree(mdev)) { 1177 list_for_each_entry(fmr, fmr_list, list) 1178 mthca_arbel_fmr_unmap(mdev, to_mfmr(fmr)); 1179 1180 wmb(); 1181 } else 1182 list_for_each_entry(fmr, fmr_list, list) 1183 mthca_tavor_fmr_unmap(mdev, to_mfmr(fmr)); 1184 1185 err = mthca_SYNC_TPT(mdev, &status); 1186 if (err) 1187 return err; 1188 if (status) 1189 return -EINVAL; 1190 return 0; 1191} 1192 1193static ssize_t show_rev(struct device *device, struct device_attribute *attr, 1194 char *buf) 1195{ 1196 struct mthca_dev *dev = 1197 container_of(device, struct mthca_dev, ib_dev.dev); 1198 return sprintf(buf, "%x\n", dev->rev_id); 1199} 1200 1201static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, 1202 char *buf) 1203{ 1204 struct mthca_dev *dev = 1205 container_of(device, struct mthca_dev, ib_dev.dev); 1206 return sprintf(buf, "%d.%d.%d\n", (int) (dev->fw_ver >> 32), 1207 (int) (dev->fw_ver >> 16) & 0xffff, 1208 (int) dev->fw_ver & 0xffff); 1209} 1210 1211static ssize_t show_hca(struct device *device, struct device_attribute *attr, 1212 char *buf) 1213{ 1214 struct mthca_dev *dev = 1215 container_of(device, struct mthca_dev, ib_dev.dev); 1216 switch (dev->pdev->device) { 1217 case PCI_DEVICE_ID_MELLANOX_TAVOR: 1218 return sprintf(buf, "MT23108\n"); 1219 case PCI_DEVICE_ID_MELLANOX_ARBEL_COMPAT: 1220 return sprintf(buf, "MT25208 (MT23108 compat mode)\n"); 1221 case PCI_DEVICE_ID_MELLANOX_ARBEL: 1222 return sprintf(buf, "MT25208\n"); 1223 case PCI_DEVICE_ID_MELLANOX_SINAI: 1224 case PCI_DEVICE_ID_MELLANOX_SINAI_OLD: 1225 return sprintf(buf, "MT25204\n"); 1226 default: 1227 return sprintf(buf, "unknown\n"); 1228 } 1229} 1230 1231static ssize_t show_board(struct device *device, struct device_attribute *attr, 1232 char *buf) 1233{ 1234 struct mthca_dev *dev = 1235 container_of(device, struct mthca_dev, ib_dev.dev); 1236 return sprintf(buf, "%.*s\n", MTHCA_BOARD_ID_LEN, dev->board_id); 1237} 1238 1239static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 1240static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 1241static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 1242static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 1243 1244static struct device_attribute *mthca_dev_attributes[] = { 1245 &dev_attr_hw_rev, 1246 &dev_attr_fw_ver, 1247 &dev_attr_hca_type, 1248 &dev_attr_board_id 1249}; 1250 1251static int mthca_init_node_data(struct mthca_dev *dev) 1252{ 1253 struct ib_smp *in_mad = NULL; 1254 struct ib_smp *out_mad = NULL; 1255 int err = -ENOMEM; 1256 u8 status; 1257 1258 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 1259 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 1260 if (!in_mad || !out_mad) 1261 goto out; 1262 1263 init_query_mad(in_mad); 1264 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 1265 1266 err = mthca_MAD_IFC(dev, 1, 1, 1267 1, NULL, NULL, in_mad, out_mad, 1268 &status); 1269 if (err) 1270 goto out; 1271 if (status) { 1272 err = -EINVAL; 1273 goto out; 1274 } 1275 1276 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 1277 1278 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 1279 1280 err = mthca_MAD_IFC(dev, 1, 1, 1281 1, NULL, NULL, in_mad, out_mad, 1282 &status); 1283 if (err) 1284 goto out; 1285 if (status) { 1286 err = -EINVAL; 1287 goto out; 1288 } 1289 1290 if (mthca_is_memfree(dev)) 1291 dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 1292 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 1293 1294out: 1295 kfree(in_mad); 1296 kfree(out_mad); 1297 return err; 1298} 1299 1300static int mthca_port_immutable(struct ib_device *ibdev, u8 port_num, 1301 struct ib_port_immutable *immutable) 1302{ 1303 struct ib_port_attr attr; 1304 int err; 1305 1306 immutable->core_cap_flags = RDMA_CORE_PORT_IBA_IB; 1307 1308 err = ib_query_port(ibdev, port_num, &attr); 1309 if (err) 1310 return err; 1311 1312 immutable->pkey_tbl_len = attr.pkey_tbl_len; 1313 immutable->gid_tbl_len = attr.gid_tbl_len; 1314 immutable->max_mad_size = IB_MGMT_MAD_SIZE; 1315 1316 return 0; 1317} 1318 1319int mthca_register_device(struct mthca_dev *dev) 1320{ 1321 int ret; 1322 int i; 1323 1324 ret = mthca_init_node_data(dev); 1325 if (ret) 1326 return ret; 1327 1328 strlcpy(dev->ib_dev.name, "mthca%d", IB_DEVICE_NAME_MAX); 1329 dev->ib_dev.owner = THIS_MODULE; 1330 1331 dev->ib_dev.uverbs_abi_ver = MTHCA_UVERBS_ABI_VERSION; 1332 dev->ib_dev.uverbs_cmd_mask = 1333 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1334 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1335 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1336 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1337 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1338 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1339 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1340 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1341 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1342 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1343 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1344 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1345 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1346 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1347 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1348 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1349 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST); 1350 dev->ib_dev.node_type = RDMA_NODE_IB_CA; 1351 dev->ib_dev.phys_port_cnt = dev->limits.num_ports; 1352 dev->ib_dev.num_comp_vectors = 1; 1353 dev->ib_dev.dma_device = &dev->pdev->dev; 1354 dev->ib_dev.query_device = mthca_query_device; 1355 dev->ib_dev.query_port = mthca_query_port; 1356 dev->ib_dev.modify_device = mthca_modify_device; 1357 dev->ib_dev.modify_port = mthca_modify_port; 1358 dev->ib_dev.query_pkey = mthca_query_pkey; 1359 dev->ib_dev.query_gid = mthca_query_gid; 1360 dev->ib_dev.alloc_ucontext = mthca_alloc_ucontext; 1361 dev->ib_dev.dealloc_ucontext = mthca_dealloc_ucontext; 1362 dev->ib_dev.mmap = mthca_mmap_uar; 1363 dev->ib_dev.alloc_pd = mthca_alloc_pd; 1364 dev->ib_dev.dealloc_pd = mthca_dealloc_pd; 1365 dev->ib_dev.create_ah = mthca_ah_create; 1366 dev->ib_dev.query_ah = mthca_ah_query; 1367 dev->ib_dev.destroy_ah = mthca_ah_destroy; 1368 1369 if (dev->mthca_flags & MTHCA_FLAG_SRQ) { 1370 dev->ib_dev.create_srq = mthca_create_srq; 1371 dev->ib_dev.modify_srq = mthca_modify_srq; 1372 dev->ib_dev.query_srq = mthca_query_srq; 1373 dev->ib_dev.destroy_srq = mthca_destroy_srq; 1374 dev->ib_dev.uverbs_cmd_mask |= 1375 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1376 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1377 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1378 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 1379 1380 if (mthca_is_memfree(dev)) 1381 dev->ib_dev.post_srq_recv = mthca_arbel_post_srq_recv; 1382 else 1383 dev->ib_dev.post_srq_recv = mthca_tavor_post_srq_recv; 1384 } 1385 1386 dev->ib_dev.create_qp = mthca_create_qp; 1387 dev->ib_dev.modify_qp = mthca_modify_qp; 1388 dev->ib_dev.query_qp = mthca_query_qp; 1389 dev->ib_dev.destroy_qp = mthca_destroy_qp; 1390 dev->ib_dev.create_cq = mthca_create_cq; 1391 dev->ib_dev.resize_cq = mthca_resize_cq; 1392 dev->ib_dev.destroy_cq = mthca_destroy_cq; 1393 dev->ib_dev.poll_cq = mthca_poll_cq; 1394 dev->ib_dev.get_dma_mr = mthca_get_dma_mr; 1395 dev->ib_dev.reg_phys_mr = mthca_reg_phys_mr; 1396 dev->ib_dev.reg_user_mr = mthca_reg_user_mr; 1397 dev->ib_dev.dereg_mr = mthca_dereg_mr; 1398 dev->ib_dev.get_port_immutable = mthca_port_immutable; 1399 1400 if (dev->mthca_flags & MTHCA_FLAG_FMR) { 1401 dev->ib_dev.alloc_fmr = mthca_alloc_fmr; 1402 dev->ib_dev.unmap_fmr = mthca_unmap_fmr; 1403 dev->ib_dev.dealloc_fmr = mthca_dealloc_fmr; 1404 if (mthca_is_memfree(dev)) 1405 dev->ib_dev.map_phys_fmr = mthca_arbel_map_phys_fmr; 1406 else 1407 dev->ib_dev.map_phys_fmr = mthca_tavor_map_phys_fmr; 1408 } 1409 1410 dev->ib_dev.attach_mcast = mthca_multicast_attach; 1411 dev->ib_dev.detach_mcast = mthca_multicast_detach; 1412 dev->ib_dev.process_mad = mthca_process_mad; 1413 1414 if (mthca_is_memfree(dev)) { 1415 dev->ib_dev.req_notify_cq = mthca_arbel_arm_cq; 1416 dev->ib_dev.post_send = mthca_arbel_post_send; 1417 dev->ib_dev.post_recv = mthca_arbel_post_receive; 1418 } else { 1419 dev->ib_dev.req_notify_cq = mthca_tavor_arm_cq; 1420 dev->ib_dev.post_send = mthca_tavor_post_send; 1421 dev->ib_dev.post_recv = mthca_tavor_post_receive; 1422 } 1423 1424 mutex_init(&dev->cap_mask_mutex); 1425 1426 ret = ib_register_device(&dev->ib_dev, NULL); 1427 if (ret) 1428 return ret; 1429 1430 for (i = 0; i < ARRAY_SIZE(mthca_dev_attributes); ++i) { 1431 ret = device_create_file(&dev->ib_dev.dev, 1432 mthca_dev_attributes[i]); 1433 if (ret) { 1434 ib_unregister_device(&dev->ib_dev); 1435 return ret; 1436 } 1437 } 1438 1439 mthca_start_catas_poll(dev); 1440 1441 return 0; 1442} 1443 1444void mthca_unregister_device(struct mthca_dev *dev) 1445{ 1446 mthca_stop_catas_poll(dev); 1447 ib_unregister_device(&dev->ib_dev); 1448} 1449