git.oblomov.eu Git - linux-2.6/blob - drivers/infiniband/hw/cxgb3/iwch_provider.c

   1 /*
   2  * Copyright (c) 2006 Chelsio, Inc. All rights reserved.
   3  *
   4  * This software is available to you under a choice of one of two
   5  * licenses.  You may choose to be licensed under the terms of the GNU
   6  * General Public License (GPL) Version 2, available from the file
   7  * COPYING in the main directory of this source tree, or the
   8  * OpenIB.org BSD license below:
   9  *
  10  *     Redistribution and use in source and binary forms, with or
  11  *     without modification, are permitted provided that the following
  12  *     conditions are met:
  13  *
  14  *      - Redistributions of source code must retain the above
  15  *        copyright notice, this list of conditions and the following
  16  *        disclaimer.
  17  *
  18  *      - Redistributions in binary form must reproduce the above
  19  *        copyright notice, this list of conditions and the following
  20  *        disclaimer in the documentation and/or other materials
  21  *        provided with the distribution.
  22  *
  23  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
  27  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  28  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  29  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  30  * SOFTWARE.
  31  */
  32 #include <linux/module.h>
  33 #include <linux/moduleparam.h>
  34 #include <linux/device.h>
  35 #include <linux/netdevice.h>
  36 #include <linux/etherdevice.h>
  37 #include <linux/delay.h>
  38 #include <linux/errno.h>
  39 #include <linux/list.h>
  40 #include <linux/spinlock.h>
  41 #include <linux/ethtool.h>
  42 #include <linux/rtnetlink.h>
  43
  44 #include <asm/io.h>
  45 #include <asm/irq.h>
  46 #include <asm/byteorder.h>
  47
  48 #include <rdma/iw_cm.h>
  49 #include <rdma/ib_verbs.h>
  50 #include <rdma/ib_smi.h>
  51 #include <rdma/ib_umem.h>
  52 #include <rdma/ib_user_verbs.h>
  53
  54 #include "cxio_hal.h"
  55 #include "iwch.h"
  56 #include "iwch_provider.h"
  57 #include "iwch_cm.h"
  58 #include "iwch_user.h"
  59
  60 static int iwch_modify_port(struct ib_device *ibdev,
  61                             u8 port, int port_modify_mask,
  62                             struct ib_port_modify *props)
  63 {
  64         return -ENOSYS;
  65 }
  66
  67 static struct ib_ah *iwch_ah_create(struct ib_pd *pd,
  68                                     struct ib_ah_attr *ah_attr)
  69 {
  70         return ERR_PTR(-ENOSYS);
  71 }
  72
  73 static int iwch_ah_destroy(struct ib_ah *ah)
  74 {
  75         return -ENOSYS;
  76 }
  77
  78 static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
  79 {
  80         return -ENOSYS;
  81 }
  82
  83 static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
  84 {
  85         return -ENOSYS;
  86 }
  87
  88 static int iwch_process_mad(struct ib_device *ibdev,
  89                             int mad_flags,
  90                             u8 port_num,
  91                             struct ib_wc *in_wc,
  92                             struct ib_grh *in_grh,
  93                             struct ib_mad *in_mad, struct ib_mad *out_mad)
  94 {
  95         return -ENOSYS;
  96 }
  97
  98 static int iwch_dealloc_ucontext(struct ib_ucontext *context)
  99 {
 100         struct iwch_dev *rhp = to_iwch_dev(context->device);
 101         struct iwch_ucontext *ucontext = to_iwch_ucontext(context);
 102         struct iwch_mm_entry *mm, *tmp;
 103
 104         PDBG("%s context %p\n", __func__, context);
 105         list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
 106                 kfree(mm);
 107         cxio_release_ucontext(&rhp->rdev, &ucontext->uctx);
 108         kfree(ucontext);
 109         return 0;
 110 }
 111
 112 static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev,
 113                                         struct ib_udata *udata)
 114 {
 115         struct iwch_ucontext *context;
 116         struct iwch_dev *rhp = to_iwch_dev(ibdev);
 117
 118         PDBG("%s ibdev %p\n", __func__, ibdev);
 119         context = kzalloc(sizeof(*context), GFP_KERNEL);
 120         if (!context)
 121                 return ERR_PTR(-ENOMEM);
 122         cxio_init_ucontext(&rhp->rdev, &context->uctx);
 123         INIT_LIST_HEAD(&context->mmaps);
 124         spin_lock_init(&context->mmap_lock);
 125         return &context->ibucontext;
 126 }
 127
 128 static int iwch_destroy_cq(struct ib_cq *ib_cq)
 129 {
 130         struct iwch_cq *chp;
 131
 132         PDBG("%s ib_cq %p\n", __func__, ib_cq);
 133         chp = to_iwch_cq(ib_cq);
 134
 135         remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid);
 136         atomic_dec(&chp->refcnt);
 137         wait_event(chp->wait, !atomic_read(&chp->refcnt));
 138
 139         cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
 140         kfree(chp);
 141         return 0;
 142 }
 143
 144 static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector,
 145                              struct ib_ucontext *ib_context,
 146                              struct ib_udata *udata)
 147 {
 148         struct iwch_dev *rhp;
 149         struct iwch_cq *chp;
 150         struct iwch_create_cq_resp uresp;
 151         struct iwch_create_cq_req ureq;
 152         struct iwch_ucontext *ucontext = NULL;
 153
 154         PDBG("%s ib_dev %p entries %d\n", __func__, ibdev, entries);
 155         rhp = to_iwch_dev(ibdev);
 156         chp = kzalloc(sizeof(*chp), GFP_KERNEL);
 157         if (!chp)
 158                 return ERR_PTR(-ENOMEM);
 159
 160         if (ib_context) {
 161                 ucontext = to_iwch_ucontext(ib_context);
 162                 if (!t3a_device(rhp)) {
 163                         if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) {
 164                                 kfree(chp);
 165                                 return ERR_PTR(-EFAULT);
 166                         }
 167                         chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr;
 168                 }
 169         }
 170
 171         if (t3a_device(rhp)) {
 172
 173                 /*
 174                  * T3A: Add some fluff to handle extra CQEs inserted
 175                  * for various errors.
 176                  * Additional CQE possibilities:
 177                  *      TERMINATE,
 178                  *      incoming RDMA WRITE Failures
 179                  *      incoming RDMA READ REQUEST FAILUREs
 180                  * NOTE: We cannot ensure the CQ won't overflow.
 181                  */
 182                 entries += 16;
 183         }
 184         entries = roundup_pow_of_two(entries);
 185         chp->cq.size_log2 = ilog2(entries);
 186
 187         if (cxio_create_cq(&rhp->rdev, &chp->cq)) {
 188                 kfree(chp);
 189                 return ERR_PTR(-ENOMEM);
 190         }
 191         chp->rhp = rhp;
 192         chp->ibcq.cqe = 1 << chp->cq.size_log2;
 193         spin_lock_init(&chp->lock);
 194         atomic_set(&chp->refcnt, 1);
 195         init_waitqueue_head(&chp->wait);
 196         insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid);
 197
 198         if (ucontext) {
 199                 struct iwch_mm_entry *mm;
 200
 201                 mm = kmalloc(sizeof *mm, GFP_KERNEL);
 202                 if (!mm) {
 203                         iwch_destroy_cq(&chp->ibcq);
 204                         return ERR_PTR(-ENOMEM);
 205                 }
 206                 uresp.cqid = chp->cq.cqid;
 207                 uresp.size_log2 = chp->cq.size_log2;
 208                 spin_lock(&ucontext->mmap_lock);
 209                 uresp.key = ucontext->key;
 210                 ucontext->key += PAGE_SIZE;
 211                 spin_unlock(&ucontext->mmap_lock);
 212                 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
 213                         kfree(mm);
 214                         iwch_destroy_cq(&chp->ibcq);
 215                         return ERR_PTR(-EFAULT);
 216                 }
 217                 mm->key = uresp.key;
 218                 mm->addr = virt_to_phys(chp->cq.queue);
 219                 mm->len = PAGE_ALIGN((1UL << uresp.size_log2) *
 220                                              sizeof (struct t3_cqe));
 221                 insert_mmap(ucontext, mm);
 222         }
 223         PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n",
 224              chp->cq.cqid, chp, (1 << chp->cq.size_log2),
 225              (unsigned long long) chp->cq.dma_addr);
 226         return &chp->ibcq;
 227 }
 228
 229 static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
 230 {
 231 #ifdef notyet
 232         struct iwch_cq *chp = to_iwch_cq(cq);
 233         struct t3_cq oldcq, newcq;
 234         int ret;
 235
 236         PDBG("%s ib_cq %p cqe %d\n", __func__, cq, cqe);
 237
 238         /* We don't downsize... */
 239         if (cqe <= cq->cqe)
 240                 return 0;
 241
 242         /* create new t3_cq with new size */
 243         cqe = roundup_pow_of_two(cqe+1);
 244         newcq.size_log2 = ilog2(cqe);
 245
 246         /* Dont allow resize to less than the current wce count */
 247         if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) {
 248                 return -ENOMEM;
 249         }
 250
 251         /* Quiesce all QPs using this CQ */
 252         ret = iwch_quiesce_qps(chp);
 253         if (ret) {
 254                 return ret;
 255         }
 256
 257         ret = cxio_create_cq(&chp->rhp->rdev, &newcq);
 258         if (ret) {
 259                 return ret;
 260         }
 261
 262         /* copy CQEs */
 263         memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) *
 264                                         sizeof(struct t3_cqe));
 265
 266         /* old iwch_qp gets new t3_cq but keeps old cqid */
 267         oldcq = chp->cq;
 268         chp->cq = newcq;
 269         chp->cq.cqid = oldcq.cqid;
 270
 271         /* resize new t3_cq to update the HW context */
 272         ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq);
 273         if (ret) {
 274                 chp->cq = oldcq;
 275                 return ret;
 276         }
 277         chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1;
 278
 279         /* destroy old t3_cq */
 280         oldcq.cqid = newcq.cqid;
 281         ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq);
 282         if (ret) {
 283                 printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n",
 284                         __func__, ret);
 285         }
 286
 287         /* add user hooks here */
 288
 289         /* resume qps */
 290         ret = iwch_resume_qps(chp);
 291         return ret;
 292 #else
 293         return -ENOSYS;
 294 #endif
 295 }
 296
 297 static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
 298 {
 299         struct iwch_dev *rhp;
 300         struct iwch_cq *chp;
 301         enum t3_cq_opcode cq_op;
 302         int err;
 303         unsigned long flag;
 304         u32 rptr;
 305
 306         chp = to_iwch_cq(ibcq);
 307         rhp = chp->rhp;
 308         if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
 309                 cq_op = CQ_ARM_SE;
 310         else
 311                 cq_op = CQ_ARM_AN;
 312         if (chp->user_rptr_addr) {
 313                 if (get_user(rptr, chp->user_rptr_addr))
 314                         return -EFAULT;
 315                 spin_lock_irqsave(&chp->lock, flag);
 316                 chp->cq.rptr = rptr;
 317         } else
 318                 spin_lock_irqsave(&chp->lock, flag);
 319         PDBG("%s rptr 0x%x\n", __func__, chp->cq.rptr);
 320         err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
 321         spin_unlock_irqrestore(&chp->lock, flag);
 322         if (err < 0)
 323                 printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err,
 324                        chp->cq.cqid);
 325         if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
 326                 err = 0;
 327         return err;
 328 }
 329
 330 static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 331 {
 332         int len = vma->vm_end - vma->vm_start;
 333         u32 key = vma->vm_pgoff << PAGE_SHIFT;
 334         struct cxio_rdev *rdev_p;
 335         int ret = 0;
 336         struct iwch_mm_entry *mm;
 337         struct iwch_ucontext *ucontext;
 338         u64 addr;
 339
 340         PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
 341              key, len);
 342
 343         if (vma->vm_start & (PAGE_SIZE-1)) {
 344                 return -EINVAL;
 345         }
 346
 347         rdev_p = &(to_iwch_dev(context->device)->rdev);
 348         ucontext = to_iwch_ucontext(context);
 349
 350         mm = remove_mmap(ucontext, key, len);
 351         if (!mm)
 352                 return -EINVAL;
 353         addr = mm->addr;
 354         kfree(mm);
 355
 356         if ((addr >= rdev_p->rnic_info.udbell_physbase) &&
 357             (addr < (rdev_p->rnic_info.udbell_physbase +
 358                        rdev_p->rnic_info.udbell_len))) {
 359
 360                 /*
 361                  * Map T3 DB register.
 362                  */
 363                 if (vma->vm_flags & VM_READ) {
 364                         return -EPERM;
 365                 }
 366
 367                 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 368                 vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;
 369                 vma->vm_flags &= ~VM_MAYREAD;
 370                 ret = io_remap_pfn_range(vma, vma->vm_start,
 371                                          addr >> PAGE_SHIFT,
 372                                          len, vma->vm_page_prot);
 373         } else {
 374
 375                 /*
 376                  * Map WQ or CQ contig dma memory...
 377                  */
 378                 ret = remap_pfn_range(vma, vma->vm_start,
 379                                       addr >> PAGE_SHIFT,
 380                                       len, vma->vm_page_prot);
 381         }
 382
 383         return ret;
 384 }
 385
 386 static int iwch_deallocate_pd(struct ib_pd *pd)
 387 {
 388         struct iwch_dev *rhp;
 389         struct iwch_pd *php;
 390
 391         php = to_iwch_pd(pd);
 392         rhp = php->rhp;
 393         PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
 394         cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
 395         kfree(php);
 396         return 0;
 397 }
 398
 399 static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev,
 400                                struct ib_ucontext *context,
 401                                struct ib_udata *udata)
 402 {
 403         struct iwch_pd *php;
 404         u32 pdid;
 405         struct iwch_dev *rhp;
 406
 407         PDBG("%s ibdev %p\n", __func__, ibdev);
 408         rhp = (struct iwch_dev *) ibdev;
 409         pdid = cxio_hal_get_pdid(rhp->rdev.rscp);
 410         if (!pdid)
 411                 return ERR_PTR(-EINVAL);
 412         php = kzalloc(sizeof(*php), GFP_KERNEL);
 413         if (!php) {
 414                 cxio_hal_put_pdid(rhp->rdev.rscp, pdid);
 415                 return ERR_PTR(-ENOMEM);
 416         }
 417         php->pdid = pdid;
 418         php->rhp = rhp;
 419         if (context) {
 420                 if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) {
 421                         iwch_deallocate_pd(&php->ibpd);
 422                         return ERR_PTR(-EFAULT);
 423                 }
 424         }
 425         PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
 426         return &php->ibpd;
 427 }
 428
 429 static int iwch_dereg_mr(struct ib_mr *ib_mr)
 430 {
 431         struct iwch_dev *rhp;
 432         struct iwch_mr *mhp;
 433         u32 mmid;
 434
 435         PDBG("%s ib_mr %p\n", __func__, ib_mr);
 436         /* There can be no memory windows */
 437         if (atomic_read(&ib_mr->usecnt))
 438                 return -EINVAL;
 439
 440         mhp = to_iwch_mr(ib_mr);
 441         rhp = mhp->rhp;
 442         mmid = mhp->attr.stag >> 8;
 443         cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
 444                        mhp->attr.pbl_addr);
 445         iwch_free_pbl(mhp);
 446         remove_handle(rhp, &rhp->mmidr, mmid);
 447         if (mhp->kva)
 448                 kfree((void *) (unsigned long) mhp->kva);
 449         if (mhp->umem)
 450                 ib_umem_release(mhp->umem);
 451         PDBG("%s mmid 0x%x ptr %p\n", __func__, mmid, mhp);
 452         kfree(mhp);
 453         return 0;
 454 }
 455
 456 static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
 457                                         struct ib_phys_buf *buffer_list,
 458                                         int num_phys_buf,
 459                                         int acc,
 460                                         u64 *iova_start)
 461 {
 462         __be64 *page_list;
 463         int shift;
 464         u64 total_size;
 465         int npages;
 466         struct iwch_dev *rhp;
 467         struct iwch_pd *php;
 468         struct iwch_mr *mhp;
 469         int ret;
 470
 471         PDBG("%s ib_pd %p\n", __func__, pd);
 472         php = to_iwch_pd(pd);
 473         rhp = php->rhp;
 474
 475         mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
 476         if (!mhp)
 477                 return ERR_PTR(-ENOMEM);
 478
 479         mhp->rhp = rhp;
 480
 481         /* First check that we have enough alignment */
 482         if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) {
 483                 ret = -EINVAL;
 484                 goto err;
 485         }
 486
 487         if (num_phys_buf > 1 &&
 488             ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) {
 489                 ret = -EINVAL;
 490                 goto err;
 491         }
 492
 493         ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start,
 494                                    &total_size, &npages, &shift, &page_list);
 495         if (ret)
 496                 goto err;
 497
 498         ret = iwch_alloc_pbl(mhp, npages);
 499         if (ret) {
 500                 kfree(page_list);
 501                 goto err_pbl;
 502         }
 503
 504         ret = iwch_write_pbl(mhp, page_list, npages, 0);
 505         kfree(page_list);
 506         if (ret)
 507                 goto err_pbl;
 508
 509         mhp->attr.pdid = php->pdid;
 510         mhp->attr.zbva = 0;
 511
 512         mhp->attr.perms = iwch_ib_to_tpt_access(acc);
 513         mhp->attr.va_fbo = *iova_start;
 514         mhp->attr.page_size = shift - 12;
 515
 516         mhp->attr.len = (u32) total_size;
 517         mhp->attr.pbl_size = npages;
 518         ret = iwch_register_mem(rhp, php, mhp, shift);
 519         if (ret)
 520                 goto err_pbl;
 521
 522         return &mhp->ibmr;
 523
 524 err_pbl:
 525         iwch_free_pbl(mhp);
 526
 527 err:
 528         kfree(mhp);
 529         return ERR_PTR(ret);
 530
 531 }
 532
 533 static int iwch_reregister_phys_mem(struct ib_mr *mr,
 534                                      int mr_rereg_mask,
 535                                      struct ib_pd *pd,
 536                                      struct ib_phys_buf *buffer_list,
 537                                      int num_phys_buf,
 538                                      int acc, u64 * iova_start)
 539 {
 540
 541         struct iwch_mr mh, *mhp;
 542         struct iwch_pd *php;
 543         struct iwch_dev *rhp;
 544         __be64 *page_list = NULL;
 545         int shift = 0;
 546         u64 total_size;
 547         int npages;
 548         int ret;
 549
 550         PDBG("%s ib_mr %p ib_pd %p\n", __func__, mr, pd);
 551
 552         /* There can be no memory windows */
 553         if (atomic_read(&mr->usecnt))
 554                 return -EINVAL;
 555
 556         mhp = to_iwch_mr(mr);
 557         rhp = mhp->rhp;
 558         php = to_iwch_pd(mr->pd);
 559
 560         /* make sure we are on the same adapter */
 561         if (rhp != php->rhp)
 562                 return -EINVAL;
 563
 564         memcpy(&mh, mhp, sizeof *mhp);
 565
 566         if (mr_rereg_mask & IB_MR_REREG_PD)
 567                 php = to_iwch_pd(pd);
 568         if (mr_rereg_mask & IB_MR_REREG_ACCESS)
 569                 mh.attr.perms = iwch_ib_to_tpt_access(acc);
 570         if (mr_rereg_mask & IB_MR_REREG_TRANS) {
 571                 ret = build_phys_page_list(buffer_list, num_phys_buf,
 572                                            iova_start,
 573                                            &total_size, &npages,
 574                                            &shift, &page_list);
 575                 if (ret)
 576                         return ret;
 577         }
 578
 579         ret = iwch_reregister_mem(rhp, php, &mh, shift, npages);
 580         kfree(page_list);
 581         if (ret) {
 582                 return ret;
 583         }
 584         if (mr_rereg_mask & IB_MR_REREG_PD)
 585                 mhp->attr.pdid = php->pdid;
 586         if (mr_rereg_mask & IB_MR_REREG_ACCESS)
 587                 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
 588         if (mr_rereg_mask & IB_MR_REREG_TRANS) {
 589                 mhp->attr.zbva = 0;
 590                 mhp->attr.va_fbo = *iova_start;
 591                 mhp->attr.page_size = shift - 12;
 592                 mhp->attr.len = (u32) total_size;
 593                 mhp->attr.pbl_size = npages;
 594         }
 595
 596         return 0;
 597 }
 598
 599
 600 static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, u64 start, u64 length,
 601                                       u64 virt, int acc, struct ib_udata *udata)
 602 {
 603         __be64 *pages;
 604         int shift, n, len;
 605         int i, j, k;
 606         int err = 0;
 607         struct ib_umem_chunk *chunk;
 608         struct iwch_dev *rhp;
 609         struct iwch_pd *php;
 610         struct iwch_mr *mhp;
 611         struct iwch_reg_user_mr_resp uresp;
 612
 613         PDBG("%s ib_pd %p\n", __func__, pd);
 614
 615         php = to_iwch_pd(pd);
 616         rhp = php->rhp;
 617         mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
 618         if (!mhp)
 619                 return ERR_PTR(-ENOMEM);
 620
 621         mhp->rhp = rhp;
 622
 623         mhp->umem = ib_umem_get(pd->uobject->context, start, length, acc, 0);
 624         if (IS_ERR(mhp->umem)) {
 625                 err = PTR_ERR(mhp->umem);
 626                 kfree(mhp);
 627                 return ERR_PTR(err);
 628         }
 629
 630         shift = ffs(mhp->umem->page_size) - 1;
 631
 632         n = 0;
 633         list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
 634                 n += chunk->nents;
 635
 636         err = iwch_alloc_pbl(mhp, n);
 637         if (err)
 638                 goto err;
 639
 640         pages = (__be64 *) __get_free_page(GFP_KERNEL);
 641         if (!pages) {
 642                 err = -ENOMEM;
 643                 goto err_pbl;
 644         }
 645
 646         i = n = 0;
 647
 648         list_for_each_entry(chunk, &mhp->umem->chunk_list, list)
 649                 for (j = 0; j < chunk->nmap; ++j) {
 650                         len = sg_dma_len(&chunk->page_list[j]) >> shift;
 651                         for (k = 0; k < len; ++k) {
 652                                 pages[i++] = cpu_to_be64(sg_dma_address(
 653                                         &chunk->page_list[j]) +
 654                                         mhp->umem->page_size * k);
 655                                 if (i == PAGE_SIZE / sizeof *pages) {
 656                                         err = iwch_write_pbl(mhp, pages, i, n);
 657                                         if (err)
 658                                                 goto pbl_done;
 659                                         n += i;
 660                                         i = 0;
 661                                 }
 662                         }
 663                 }
 664
 665         if (i)
 666                 err = iwch_write_pbl(mhp, pages, i, n);
 667
 668 pbl_done:
 669         free_page((unsigned long) pages);
 670         if (err)
 671                 goto err_pbl;
 672
 673         mhp->attr.pdid = php->pdid;
 674         mhp->attr.zbva = 0;
 675         mhp->attr.perms = iwch_ib_to_tpt_access(acc);
 676         mhp->attr.va_fbo = virt;
 677         mhp->attr.page_size = shift - 12;
 678         mhp->attr.len = (u32) length;
 679
 680         err = iwch_register_mem(rhp, php, mhp, shift);
 681         if (err)
 682                 goto err_pbl;
 683
 684         if (udata && !t3a_device(rhp)) {
 685                 uresp.pbl_addr = (mhp->attr.pbl_addr -
 686                                  rhp->rdev.rnic_info.pbl_base) >> 3;
 687                 PDBG("%s user resp pbl_addr 0x%x\n", __func__,
 688                      uresp.pbl_addr);
 689
 690                 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
 691                         iwch_dereg_mr(&mhp->ibmr);
 692                         err = -EFAULT;
 693                         goto err;
 694                 }
 695         }
 696
 697         return &mhp->ibmr;
 698
 699 err_pbl:
 700         iwch_free_pbl(mhp);
 701
 702 err:
 703         ib_umem_release(mhp->umem);
 704         kfree(mhp);
 705         return ERR_PTR(err);
 706 }
 707
 708 static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
 709 {
 710         struct ib_phys_buf bl;
 711         u64 kva;
 712         struct ib_mr *ibmr;
 713
 714         PDBG("%s ib_pd %p\n", __func__, pd);
 715
 716         /*
 717          * T3 only supports 32 bits of size.
 718          */
 719         bl.size = 0xffffffff;
 720         bl.addr = 0;
 721         kva = 0;
 722         ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva);
 723         return ibmr;
 724 }
 725
 726 static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
 727 {
 728         struct iwch_dev *rhp;
 729         struct iwch_pd *php;
 730         struct iwch_mw *mhp;
 731         u32 mmid;
 732         u32 stag = 0;
 733         int ret;
 734
 735         php = to_iwch_pd(pd);
 736         rhp = php->rhp;
 737         mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
 738         if (!mhp)
 739                 return ERR_PTR(-ENOMEM);
 740         ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid);
 741         if (ret) {
 742                 kfree(mhp);
 743                 return ERR_PTR(ret);
 744         }
 745         mhp->rhp = rhp;
 746         mhp->attr.pdid = php->pdid;
 747         mhp->attr.type = TPT_MW;
 748         mhp->attr.stag = stag;
 749         mmid = (stag) >> 8;
 750         insert_handle(rhp, &rhp->mmidr, mhp, mmid);
 751         PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __func__, mmid, mhp, stag);
 752         return &(mhp->ibmw);
 753 }
 754
 755 static int iwch_dealloc_mw(struct ib_mw *mw)
 756 {
 757         struct iwch_dev *rhp;
 758         struct iwch_mw *mhp;
 759         u32 mmid;
 760
 761         mhp = to_iwch_mw(mw);
 762         rhp = mhp->rhp;
 763         mmid = (mw->rkey) >> 8;
 764         cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
 765         remove_handle(rhp, &rhp->mmidr, mmid);
 766         kfree(mhp);
 767         PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __func__, mw, mmid, mhp);
 768         return 0;
 769 }
 770
 771 static int iwch_destroy_qp(struct ib_qp *ib_qp)
 772 {
 773         struct iwch_dev *rhp;
 774         struct iwch_qp *qhp;
 775         struct iwch_qp_attributes attrs;
 776         struct iwch_ucontext *ucontext;
 777
 778         qhp = to_iwch_qp(ib_qp);
 779         rhp = qhp->rhp;
 780
 781         attrs.next_state = IWCH_QP_STATE_ERROR;
 782         iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0);
 783         wait_event(qhp->wait, !qhp->ep);
 784
 785         remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid);
 786
 787         atomic_dec(&qhp->refcnt);
 788         wait_event(qhp->wait, !atomic_read(&qhp->refcnt));
 789
 790         ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context)
 791                                   : NULL;
 792         cxio_destroy_qp(&rhp->rdev, &qhp->wq,
 793                         ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
 794
 795         PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __func__,
 796              ib_qp, qhp->wq.qpid, qhp);
 797         kfree(qhp);
 798         return 0;
 799 }
 800
 801 static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
 802                              struct ib_qp_init_attr *attrs,
 803                              struct ib_udata *udata)
 804 {
 805         struct iwch_dev *rhp;
 806         struct iwch_qp *qhp;
 807         struct iwch_pd *php;
 808         struct iwch_cq *schp;
 809         struct iwch_cq *rchp;
 810         struct iwch_create_qp_resp uresp;
 811         int wqsize, sqsize, rqsize;
 812         struct iwch_ucontext *ucontext;
 813
 814         PDBG("%s ib_pd %p\n", __func__, pd);
 815         if (attrs->qp_type != IB_QPT_RC)
 816                 return ERR_PTR(-EINVAL);
 817         php = to_iwch_pd(pd);
 818         rhp = php->rhp;
 819         schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid);
 820         rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid);
 821         if (!schp || !rchp)
 822                 return ERR_PTR(-EINVAL);
 823
 824         /* The RQT size must be # of entries + 1 rounded up to a power of two */
 825         rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr);
 826         if (rqsize == attrs->cap.max_recv_wr)
 827                 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1);
 828
 829         /* T3 doesn't support RQT depth < 16 */
 830         if (rqsize < 16)
 831                 rqsize = 16;
 832
 833         if (rqsize > T3_MAX_RQ_SIZE)
 834                 return ERR_PTR(-EINVAL);
 835
 836         if (attrs->cap.max_inline_data > T3_MAX_INLINE)
 837                 return ERR_PTR(-EINVAL);
 838
 839         /*
 840          * NOTE: The SQ and total WQ sizes don't need to be
 841          * a power of two.  However, all the code assumes
 842          * they are. EG: Q_FREECNT() and friends.
 843          */
 844         sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
 845         wqsize = roundup_pow_of_two(rqsize + sqsize);
 846         PDBG("%s wqsize %d sqsize %d rqsize %d\n", __func__,
 847              wqsize, sqsize, rqsize);
 848         qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
 849         if (!qhp)
 850                 return ERR_PTR(-ENOMEM);
 851         qhp->wq.size_log2 = ilog2(wqsize);
 852         qhp->wq.rq_size_log2 = ilog2(rqsize);
 853         qhp->wq.sq_size_log2 = ilog2(sqsize);
 854         ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
 855         if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
 856                            ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
 857                 kfree(qhp);
 858                 return ERR_PTR(-ENOMEM);
 859         }
 860
 861         attrs->cap.max_recv_wr = rqsize - 1;
 862         attrs->cap.max_send_wr = sqsize;
 863         attrs->cap.max_inline_data = T3_MAX_INLINE;
 864
 865         qhp->rhp = rhp;
 866         qhp->attr.pd = php->pdid;
 867         qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid;
 868         qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid;
 869         qhp->attr.sq_num_entries = attrs->cap.max_send_wr;
 870         qhp->attr.rq_num_entries = attrs->cap.max_recv_wr;
 871         qhp->attr.sq_max_sges = attrs->cap.max_send_sge;
 872         qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge;
 873         qhp->attr.rq_max_sges = attrs->cap.max_recv_sge;
 874         qhp->attr.state = IWCH_QP_STATE_IDLE;
 875         qhp->attr.next_state = IWCH_QP_STATE_IDLE;
 876
 877         /*
 878          * XXX - These don't get passed in from the openib user
 879          * at create time.  The CM sets them via a QP modify.
 880          * Need to fix...  I think the CM should
 881          */
 882         qhp->attr.enable_rdma_read = 1;
 883         qhp->attr.enable_rdma_write = 1;
 884         qhp->attr.enable_bind = 1;
 885         qhp->attr.max_ord = 1;
 886         qhp->attr.max_ird = 1;
 887
 888         spin_lock_init(&qhp->lock);
 889         init_waitqueue_head(&qhp->wait);
 890         atomic_set(&qhp->refcnt, 1);
 891         insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid);
 892
 893         if (udata) {
 894
 895                 struct iwch_mm_entry *mm1, *mm2;
 896
 897                 mm1 = kmalloc(sizeof *mm1, GFP_KERNEL);
 898                 if (!mm1) {
 899                         iwch_destroy_qp(&qhp->ibqp);
 900                         return ERR_PTR(-ENOMEM);
 901                 }
 902
 903                 mm2 = kmalloc(sizeof *mm2, GFP_KERNEL);
 904                 if (!mm2) {
 905                         kfree(mm1);
 906                         iwch_destroy_qp(&qhp->ibqp);
 907                         return ERR_PTR(-ENOMEM);
 908                 }
 909
 910                 uresp.qpid = qhp->wq.qpid;
 911                 uresp.size_log2 = qhp->wq.size_log2;
 912                 uresp.sq_size_log2 = qhp->wq.sq_size_log2;
 913                 uresp.rq_size_log2 = qhp->wq.rq_size_log2;
 914                 spin_lock(&ucontext->mmap_lock);
 915                 uresp.key = ucontext->key;
 916                 ucontext->key += PAGE_SIZE;
 917                 uresp.db_key = ucontext->key;
 918                 ucontext->key += PAGE_SIZE;
 919                 spin_unlock(&ucontext->mmap_lock);
 920                 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
 921                         kfree(mm1);
 922                         kfree(mm2);
 923                         iwch_destroy_qp(&qhp->ibqp);
 924                         return ERR_PTR(-EFAULT);
 925                 }
 926                 mm1->key = uresp.key;
 927                 mm1->addr = virt_to_phys(qhp->wq.queue);
 928                 mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr));
 929                 insert_mmap(ucontext, mm1);
 930                 mm2->key = uresp.db_key;
 931                 mm2->addr = qhp->wq.udb & PAGE_MASK;
 932                 mm2->len = PAGE_SIZE;
 933                 insert_mmap(ucontext, mm2);
 934         }
 935         qhp->ibqp.qp_num = qhp->wq.qpid;
 936         init_timer(&(qhp->timer));
 937         PDBG("%s sq_num_entries %d, rq_num_entries %d "
 938              "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n",
 939              __func__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
 940              qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
 941              1 << qhp->wq.size_log2);
 942         return &qhp->ibqp;
 943 }
 944
 945 static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 946                       int attr_mask, struct ib_udata *udata)
 947 {
 948         struct iwch_dev *rhp;
 949         struct iwch_qp *qhp;
 950         enum iwch_qp_attr_mask mask = 0;
 951         struct iwch_qp_attributes attrs;
 952
 953         PDBG("%s ib_qp %p\n", __func__, ibqp);
 954
 955         /* iwarp does not support the RTR state */
 956         if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR))
 957                 attr_mask &= ~IB_QP_STATE;
 958
 959         /* Make sure we still have something left to do */
 960         if (!attr_mask)
 961                 return 0;
 962
 963         memset(&attrs, 0, sizeof attrs);
 964         qhp = to_iwch_qp(ibqp);
 965         rhp = qhp->rhp;
 966
 967         attrs.next_state = iwch_convert_state(attr->qp_state);
 968         attrs.enable_rdma_read = (attr->qp_access_flags &
 969                                IB_ACCESS_REMOTE_READ) ?  1 : 0;
 970         attrs.enable_rdma_write = (attr->qp_access_flags &
 971                                 IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
 972         attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0;
 973
 974
 975         mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0;
 976         mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ?
 977                         (IWCH_QP_ATTR_ENABLE_RDMA_READ |
 978                          IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
 979                          IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0;
 980
 981         return iwch_modify_qp(rhp, qhp, mask, &attrs, 0);
 982 }
 983
 984 void iwch_qp_add_ref(struct ib_qp *qp)
 985 {
 986         PDBG("%s ib_qp %p\n", __func__, qp);
 987         atomic_inc(&(to_iwch_qp(qp)->refcnt));
 988 }
 989
 990 void iwch_qp_rem_ref(struct ib_qp *qp)
 991 {
 992         PDBG("%s ib_qp %p\n", __func__, qp);
 993         if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt)))
 994                 wake_up(&(to_iwch_qp(qp)->wait));
 995 }
 996
 997 static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
 998 {
 999         PDBG("%s ib_dev %p qpn 0x%x\n", __func__, dev, qpn);
1000         return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn);
1001 }
1002
1003
1004 static int iwch_query_pkey(struct ib_device *ibdev,
1005                            u8 port, u16 index, u16 * pkey)
1006 {
1007         PDBG("%s ibdev %p\n", __func__, ibdev);
1008         *pkey = 0;
1009         return 0;
1010 }
1011
1012 static int iwch_query_gid(struct ib_device *ibdev, u8 port,
1013                           int index, union ib_gid *gid)
1014 {
1015         struct iwch_dev *dev;
1016
1017         PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
1018                __func__, ibdev, port, index, gid);
1019         dev = to_iwch_dev(ibdev);
1020         BUG_ON(port == 0 || port > 2);
1021         memset(&(gid->raw[0]), 0, sizeof(gid->raw));
1022         memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6);
1023         return 0;
1024 }
1025
1026 static int iwch_query_device(struct ib_device *ibdev,
1027                              struct ib_device_attr *props)
1028 {
1029
1030         struct iwch_dev *dev;
1031         PDBG("%s ibdev %p\n", __func__, ibdev);
1032
1033         dev = to_iwch_dev(ibdev);
1034         memset(props, 0, sizeof *props);
1035         memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1036         props->device_cap_flags = dev->device_cap_flags;
1037         props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
1038         props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
1039         props->max_mr_size = dev->attr.max_mr_size;
1040         props->max_qp = dev->attr.max_qps;
1041         props->max_qp_wr = dev->attr.max_wrs;
1042         props->max_sge = dev->attr.max_sge_per_wr;
1043         props->max_sge_rd = 1;
1044         props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
1045         props->max_qp_init_rd_atom = dev->attr.max_rdma_reads_per_qp;
1046         props->max_cq = dev->attr.max_cqs;
1047         props->max_cqe = dev->attr.max_cqes_per_cq;
1048         props->max_mr = dev->attr.max_mem_regs;
1049         props->max_pd = dev->attr.max_pds;
1050         props->local_ca_ack_delay = 0;
1051
1052         return 0;
1053 }
1054
1055 static int iwch_query_port(struct ib_device *ibdev,
1056                            u8 port, struct ib_port_attr *props)
1057 {
1058         PDBG("%s ibdev %p\n", __func__, ibdev);
1059         props->max_mtu = IB_MTU_4096;
1060         props->lid = 0;
1061         props->lmc = 0;
1062         props->sm_lid = 0;
1063         props->sm_sl = 0;
1064         props->state = IB_PORT_ACTIVE;
1065         props->phys_state = 0;
1066         props->port_cap_flags =
1067             IB_PORT_CM_SUP |
1068             IB_PORT_SNMP_TUNNEL_SUP |
1069             IB_PORT_REINIT_SUP |
1070             IB_PORT_DEVICE_MGMT_SUP |
1071             IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
1072         props->gid_tbl_len = 1;
1073         props->pkey_tbl_len = 1;
1074         props->qkey_viol_cntr = 0;
1075         props->active_width = 2;
1076         props->active_speed = 2;
1077         props->max_msg_sz = -1;
1078
1079         return 0;
1080 }
1081
1082 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
1083                         char *buf)
1084 {
1085         struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1086                                                  ibdev.dev);
1087         PDBG("%s dev 0x%p\n", __func__, dev);
1088         return sprintf(buf, "%d\n", iwch_dev->rdev.t3cdev_p->type);
1089 }
1090
1091 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr, char *buf)
1092 {
1093         struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1094                                                  ibdev.dev);
1095         struct ethtool_drvinfo info;
1096         struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1097
1098         PDBG("%s dev 0x%p\n", __func__, dev);
1099         lldev->ethtool_ops->get_drvinfo(lldev, &info);
1100         return sprintf(buf, "%s\n", info.fw_version);
1101 }
1102
1103 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
1104                         char *buf)
1105 {
1106         struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1107                                                  ibdev.dev);
1108         struct ethtool_drvinfo info;
1109         struct net_device *lldev = iwch_dev->rdev.t3cdev_p->lldev;
1110
1111         PDBG("%s dev 0x%p\n", __func__, dev);
1112         lldev->ethtool_ops->get_drvinfo(lldev, &info);
1113         return sprintf(buf, "%s\n", info.driver);
1114 }
1115
1116 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
1117                           char *buf)
1118 {
1119         struct iwch_dev *iwch_dev = container_of(dev, struct iwch_dev,
1120                                                  ibdev.dev);
1121         PDBG("%s dev 0x%p\n", __func__, dev);
1122         return sprintf(buf, "%x.%x\n", iwch_dev->rdev.rnic_info.pdev->vendor,
1123                        iwch_dev->rdev.rnic_info.pdev->device);
1124 }
1125
1126 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
1127 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
1128 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
1129 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
1130
1131 static struct device_attribute *iwch_class_attributes[] = {
1132         &dev_attr_hw_rev,
1133         &dev_attr_fw_ver,
1134         &dev_attr_hca_type,
1135         &dev_attr_board_id
1136 };
1137
1138 int iwch_register_device(struct iwch_dev *dev)
1139 {
1140         int ret;
1141         int i;
1142
1143         PDBG("%s iwch_dev %p\n", __func__, dev);
1144         strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX);
1145         memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
1146         memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1147         dev->ibdev.owner = THIS_MODULE;
1148         dev->device_cap_flags =
1149             (IB_DEVICE_ZERO_STAG | IB_DEVICE_MEM_WINDOW);
1150
1151         dev->ibdev.uverbs_cmd_mask =
1152             (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1153             (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1154             (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1155             (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1156             (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1157             (1ull << IB_USER_VERBS_CMD_REG_MR) |
1158             (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1159             (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1160             (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1161             (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1162             (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
1163             (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1164             (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1165             (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
1166             (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1167             (1ull << IB_USER_VERBS_CMD_POST_SEND) |
1168             (1ull << IB_USER_VERBS_CMD_POST_RECV);
1169         dev->ibdev.node_type = RDMA_NODE_RNIC;
1170         memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
1171         dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
1172         dev->ibdev.num_comp_vectors = 1;
1173         dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
1174         dev->ibdev.query_device = iwch_query_device;
1175         dev->ibdev.query_port = iwch_query_port;
1176         dev->ibdev.modify_port = iwch_modify_port;
1177         dev->ibdev.query_pkey = iwch_query_pkey;
1178         dev->ibdev.query_gid = iwch_query_gid;
1179         dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
1180         dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext;
1181         dev->ibdev.mmap = iwch_mmap;
1182         dev->ibdev.alloc_pd = iwch_allocate_pd;
1183         dev->ibdev.dealloc_pd = iwch_deallocate_pd;
1184         dev->ibdev.create_ah = iwch_ah_create;
1185         dev->ibdev.destroy_ah = iwch_ah_destroy;
1186         dev->ibdev.create_qp = iwch_create_qp;
1187         dev->ibdev.modify_qp = iwch_ib_modify_qp;
1188         dev->ibdev.destroy_qp = iwch_destroy_qp;
1189         dev->ibdev.create_cq = iwch_create_cq;
1190         dev->ibdev.destroy_cq = iwch_destroy_cq;
1191         dev->ibdev.resize_cq = iwch_resize_cq;
1192         dev->ibdev.poll_cq = iwch_poll_cq;
1193         dev->ibdev.get_dma_mr = iwch_get_dma_mr;
1194         dev->ibdev.reg_phys_mr = iwch_register_phys_mem;
1195         dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem;
1196         dev->ibdev.reg_user_mr = iwch_reg_user_mr;
1197         dev->ibdev.dereg_mr = iwch_dereg_mr;
1198         dev->ibdev.alloc_mw = iwch_alloc_mw;
1199         dev->ibdev.bind_mw = iwch_bind_mw;
1200         dev->ibdev.dealloc_mw = iwch_dealloc_mw;
1201
1202         dev->ibdev.attach_mcast = iwch_multicast_attach;
1203         dev->ibdev.detach_mcast = iwch_multicast_detach;
1204         dev->ibdev.process_mad = iwch_process_mad;
1205
1206         dev->ibdev.req_notify_cq = iwch_arm_cq;
1207         dev->ibdev.post_send = iwch_post_send;
1208         dev->ibdev.post_recv = iwch_post_receive;
1209
1210
1211         dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
1212         if (!dev->ibdev.iwcm)
1213                 return -ENOMEM;
1214
1215         dev->ibdev.iwcm->connect = iwch_connect;
1216         dev->ibdev.iwcm->accept = iwch_accept_cr;
1217         dev->ibdev.iwcm->reject = iwch_reject_cr;
1218         dev->ibdev.iwcm->create_listen = iwch_create_listen;
1219         dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen;
1220         dev->ibdev.iwcm->add_ref = iwch_qp_add_ref;
1221         dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref;
1222         dev->ibdev.iwcm->get_qp = iwch_get_qp;
1223
1224         ret = ib_register_device(&dev->ibdev);
1225         if (ret)
1226                 goto bail1;
1227
1228         for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) {
1229                 ret = device_create_file(&dev->ibdev.dev,
1230                                          iwch_class_attributes[i]);
1231                 if (ret) {
1232                         goto bail2;
1233                 }
1234         }
1235         return 0;
1236 bail2:
1237         ib_unregister_device(&dev->ibdev);
1238 bail1:
1239         return ret;
1240 }
1241
1242 void iwch_unregister_device(struct iwch_dev *dev)
1243 {
1244         int i;
1245
1246         PDBG("%s iwch_dev %p\n", __func__, dev);
1247         for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i)
1248                 device_remove_file(&dev->ibdev.dev,
1249                                    iwch_class_attributes[i]);
1250         ib_unregister_device(&dev->ibdev);
1251         return;
1252 }