SAFE public projects git trees. - safe/jmp/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
  43 #include <asm/io.h>
  44 #include <asm/irq.h>
  45 #include <asm/byteorder.h>
  46
  47 #include <rdma/iw_cm.h>
  48 #include <rdma/ib_verbs.h>
  49 #include <rdma/ib_smi.h>
  50 #include <rdma/ib_user_verbs.h>
  51
  52 #include "cxio_hal.h"
  53 #include "iwch.h"
  54 #include "iwch_provider.h"
  55 #include "iwch_cm.h"
  56 #include "iwch_user.h"
  57
  58 static int iwch_modify_port(struct ib_device *ibdev,
  59                             u8 port, int port_modify_mask,
  60                             struct ib_port_modify *props)
  61 {
  62         return -ENOSYS;
  63 }
  64
  65 static struct ib_ah *iwch_ah_create(struct ib_pd *pd,
  66                                     struct ib_ah_attr *ah_attr)
  67 {
  68         return ERR_PTR(-ENOSYS);
  69 }
  70
  71 static int iwch_ah_destroy(struct ib_ah *ah)
  72 {
  73         return -ENOSYS;
  74 }
  75
  76 static int iwch_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
  77 {
  78         return -ENOSYS;
  79 }
  80
  81 static int iwch_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
  82 {
  83         return -ENOSYS;
  84 }
  85
  86 static int iwch_process_mad(struct ib_device *ibdev,
  87                             int mad_flags,
  88                             u8 port_num,
  89                             struct ib_wc *in_wc,
  90                             struct ib_grh *in_grh,
  91                             struct ib_mad *in_mad, struct ib_mad *out_mad)
  92 {
  93         return -ENOSYS;
  94 }
  95
  96 static int iwch_dealloc_ucontext(struct ib_ucontext *context)
  97 {
  98         struct iwch_dev *rhp = to_iwch_dev(context->device);
  99         struct iwch_ucontext *ucontext = to_iwch_ucontext(context);
 100         struct iwch_mm_entry *mm, *tmp;
 101
 102         PDBG("%s context %p\n", __FUNCTION__, context);
 103         list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
 104                 kfree(mm);
 105         cxio_release_ucontext(&rhp->rdev, &ucontext->uctx);
 106         kfree(ucontext);
 107         return 0;
 108 }
 109
 110 static struct ib_ucontext *iwch_alloc_ucontext(struct ib_device *ibdev,
 111                                         struct ib_udata *udata)
 112 {
 113         struct iwch_ucontext *context;
 114         struct iwch_dev *rhp = to_iwch_dev(ibdev);
 115
 116         PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
 117         context = kzalloc(sizeof(*context), GFP_KERNEL);
 118         if (!context)
 119                 return ERR_PTR(-ENOMEM);
 120         cxio_init_ucontext(&rhp->rdev, &context->uctx);
 121         INIT_LIST_HEAD(&context->mmaps);
 122         spin_lock_init(&context->mmap_lock);
 123         return &context->ibucontext;
 124 }
 125
 126 static int iwch_destroy_cq(struct ib_cq *ib_cq)
 127 {
 128         struct iwch_cq *chp;
 129
 130         PDBG("%s ib_cq %p\n", __FUNCTION__, ib_cq);
 131         chp = to_iwch_cq(ib_cq);
 132
 133         remove_handle(chp->rhp, &chp->rhp->cqidr, chp->cq.cqid);
 134         atomic_dec(&chp->refcnt);
 135         wait_event(chp->wait, !atomic_read(&chp->refcnt));
 136
 137         cxio_destroy_cq(&chp->rhp->rdev, &chp->cq);
 138         kfree(chp);
 139         return 0;
 140 }
 141
 142 static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector,
 143                              struct ib_ucontext *ib_context,
 144                              struct ib_udata *udata)
 145 {
 146         struct iwch_dev *rhp;
 147         struct iwch_cq *chp;
 148         struct iwch_create_cq_resp uresp;
 149         struct iwch_create_cq_req ureq;
 150         struct iwch_ucontext *ucontext = NULL;
 151
 152         PDBG("%s ib_dev %p entries %d\n", __FUNCTION__, ibdev, entries);
 153         rhp = to_iwch_dev(ibdev);
 154         chp = kzalloc(sizeof(*chp), GFP_KERNEL);
 155         if (!chp)
 156                 return ERR_PTR(-ENOMEM);
 157
 158         if (ib_context) {
 159                 ucontext = to_iwch_ucontext(ib_context);
 160                 if (!t3a_device(rhp)) {
 161                         if (ib_copy_from_udata(&ureq, udata, sizeof (ureq))) {
 162                                 kfree(chp);
 163                                 return ERR_PTR(-EFAULT);
 164                         }
 165                         chp->user_rptr_addr = (u32 __user *)(unsigned long)ureq.user_rptr_addr;
 166                 }
 167         }
 168
 169         if (t3a_device(rhp)) {
 170
 171                 /*
 172                  * T3A: Add some fluff to handle extra CQEs inserted
 173                  * for various errors.
 174                  * Additional CQE possibilities:
 175                  *      TERMINATE,
 176                  *      incoming RDMA WRITE Failures
 177                  *      incoming RDMA READ REQUEST FAILUREs
 178                  * NOTE: We cannot ensure the CQ won't overflow.
 179                  */
 180                 entries += 16;
 181         }
 182         entries = roundup_pow_of_two(entries);
 183         chp->cq.size_log2 = ilog2(entries);
 184
 185         if (cxio_create_cq(&rhp->rdev, &chp->cq)) {
 186                 kfree(chp);
 187                 return ERR_PTR(-ENOMEM);
 188         }
 189         chp->rhp = rhp;
 190         chp->ibcq.cqe = (1 << chp->cq.size_log2) - 1;
 191         spin_lock_init(&chp->lock);
 192         atomic_set(&chp->refcnt, 1);
 193         init_waitqueue_head(&chp->wait);
 194         insert_handle(rhp, &rhp->cqidr, chp, chp->cq.cqid);
 195
 196         if (ucontext) {
 197                 struct iwch_mm_entry *mm;
 198
 199                 mm = kmalloc(sizeof *mm, GFP_KERNEL);
 200                 if (!mm) {
 201                         iwch_destroy_cq(&chp->ibcq);
 202                         return ERR_PTR(-ENOMEM);
 203                 }
 204                 uresp.cqid = chp->cq.cqid;
 205                 uresp.size_log2 = chp->cq.size_log2;
 206                 spin_lock(&ucontext->mmap_lock);
 207                 uresp.key = ucontext->key;
 208                 ucontext->key += PAGE_SIZE;
 209                 spin_unlock(&ucontext->mmap_lock);
 210                 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
 211                         kfree(mm);
 212                         iwch_destroy_cq(&chp->ibcq);
 213                         return ERR_PTR(-EFAULT);
 214                 }
 215                 mm->key = uresp.key;
 216                 mm->addr = virt_to_phys(chp->cq.queue);
 217                 mm->len = PAGE_ALIGN((1UL << uresp.size_log2) *
 218                                              sizeof (struct t3_cqe));
 219                 insert_mmap(ucontext, mm);
 220         }
 221         PDBG("created cqid 0x%0x chp %p size 0x%0x, dma_addr 0x%0llx\n",
 222              chp->cq.cqid, chp, (1 << chp->cq.size_log2),
 223              (unsigned long long) chp->cq.dma_addr);
 224         return &chp->ibcq;
 225 }
 226
 227 static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
 228 {
 229 #ifdef notyet
 230         struct iwch_cq *chp = to_iwch_cq(cq);
 231         struct t3_cq oldcq, newcq;
 232         int ret;
 233
 234         PDBG("%s ib_cq %p cqe %d\n", __FUNCTION__, cq, cqe);
 235
 236         /* We don't downsize... */
 237         if (cqe <= cq->cqe)
 238                 return 0;
 239
 240         /* create new t3_cq with new size */
 241         cqe = roundup_pow_of_two(cqe+1);
 242         newcq.size_log2 = ilog2(cqe);
 243
 244         /* Dont allow resize to less than the current wce count */
 245         if (cqe < Q_COUNT(chp->cq.rptr, chp->cq.wptr)) {
 246                 return -ENOMEM;
 247         }
 248
 249         /* Quiesce all QPs using this CQ */
 250         ret = iwch_quiesce_qps(chp);
 251         if (ret) {
 252                 return ret;
 253         }
 254
 255         ret = cxio_create_cq(&chp->rhp->rdev, &newcq);
 256         if (ret) {
 257                 return ret;
 258         }
 259
 260         /* copy CQEs */
 261         memcpy(newcq.queue, chp->cq.queue, (1 << chp->cq.size_log2) *
 262                                         sizeof(struct t3_cqe));
 263
 264         /* old iwch_qp gets new t3_cq but keeps old cqid */
 265         oldcq = chp->cq;
 266         chp->cq = newcq;
 267         chp->cq.cqid = oldcq.cqid;
 268
 269         /* resize new t3_cq to update the HW context */
 270         ret = cxio_resize_cq(&chp->rhp->rdev, &chp->cq);
 271         if (ret) {
 272                 chp->cq = oldcq;
 273                 return ret;
 274         }
 275         chp->ibcq.cqe = (1<<chp->cq.size_log2) - 1;
 276
 277         /* destroy old t3_cq */
 278         oldcq.cqid = newcq.cqid;
 279         ret = cxio_destroy_cq(&chp->rhp->rdev, &oldcq);
 280         if (ret) {
 281                 printk(KERN_ERR MOD "%s - cxio_destroy_cq failed %d\n",
 282                         __FUNCTION__, ret);
 283         }
 284
 285         /* add user hooks here */
 286
 287         /* resume qps */
 288         ret = iwch_resume_qps(chp);
 289         return ret;
 290 #else
 291         return -ENOSYS;
 292 #endif
 293 }
 294
 295 static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
 296 {
 297         struct iwch_dev *rhp;
 298         struct iwch_cq *chp;
 299         enum t3_cq_opcode cq_op;
 300         int err;
 301         unsigned long flag;
 302         u32 rptr;
 303
 304         chp = to_iwch_cq(ibcq);
 305         rhp = chp->rhp;
 306         if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
 307                 cq_op = CQ_ARM_SE;
 308         else
 309                 cq_op = CQ_ARM_AN;
 310         if (chp->user_rptr_addr) {
 311                 if (get_user(rptr, chp->user_rptr_addr))
 312                         return -EFAULT;
 313                 spin_lock_irqsave(&chp->lock, flag);
 314                 chp->cq.rptr = rptr;
 315         } else
 316                 spin_lock_irqsave(&chp->lock, flag);
 317         PDBG("%s rptr 0x%x\n", __FUNCTION__, chp->cq.rptr);
 318         err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
 319         spin_unlock_irqrestore(&chp->lock, flag);
 320         if (err < 0)
 321                 printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err,
 322                        chp->cq.cqid);
 323         if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
 324                 err = 0;
 325         return err;
 326 }
 327
 328 static int iwch_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 329 {
 330         int len = vma->vm_end - vma->vm_start;
 331         u32 key = vma->vm_pgoff << PAGE_SHIFT;
 332         struct cxio_rdev *rdev_p;
 333         int ret = 0;
 334         struct iwch_mm_entry *mm;
 335         struct iwch_ucontext *ucontext;
 336         u64 addr;
 337
 338         PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __FUNCTION__, vma->vm_pgoff,
 339              key, len);
 340
 341         if (vma->vm_start & (PAGE_SIZE-1)) {
 342                 return -EINVAL;
 343         }
 344
 345         rdev_p = &(to_iwch_dev(context->device)->rdev);
 346         ucontext = to_iwch_ucontext(context);
 347
 348         mm = remove_mmap(ucontext, key, len);
 349         if (!mm)
 350                 return -EINVAL;
 351         addr = mm->addr;
 352         kfree(mm);
 353
 354         if ((addr >= rdev_p->rnic_info.udbell_physbase) &&
 355             (addr < (rdev_p->rnic_info.udbell_physbase +
 356                        rdev_p->rnic_info.udbell_len))) {
 357
 358                 /*
 359                  * Map T3 DB register.
 360                  */
 361                 if (vma->vm_flags & VM_READ) {
 362                         return -EPERM;
 363                 }
 364
 365                 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 366                 vma->vm_flags |= VM_DONTCOPY | VM_DONTEXPAND;
 367                 vma->vm_flags &= ~VM_MAYREAD;
 368                 ret = io_remap_pfn_range(vma, vma->vm_start,
 369                                          addr >> PAGE_SHIFT,
 370                                          len, vma->vm_page_prot);
 371         } else {
 372
 373                 /*
 374                  * Map WQ or CQ contig dma memory...
 375                  */
 376                 ret = remap_pfn_range(vma, vma->vm_start,
 377                                       addr >> PAGE_SHIFT,
 378                                       len, vma->vm_page_prot);
 379         }
 380
 381         return ret;
 382 }
 383
 384 static int iwch_deallocate_pd(struct ib_pd *pd)
 385 {
 386         struct iwch_dev *rhp;
 387         struct iwch_pd *php;
 388
 389         php = to_iwch_pd(pd);
 390         rhp = php->rhp;
 391         PDBG("%s ibpd %p pdid 0x%x\n", __FUNCTION__, pd, php->pdid);
 392         cxio_hal_put_pdid(rhp->rdev.rscp, php->pdid);
 393         kfree(php);
 394         return 0;
 395 }
 396
 397 static struct ib_pd *iwch_allocate_pd(struct ib_device *ibdev,
 398                                struct ib_ucontext *context,
 399                                struct ib_udata *udata)
 400 {
 401         struct iwch_pd *php;
 402         u32 pdid;
 403         struct iwch_dev *rhp;
 404
 405         PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
 406         rhp = (struct iwch_dev *) ibdev;
 407         pdid = cxio_hal_get_pdid(rhp->rdev.rscp);
 408         if (!pdid)
 409                 return ERR_PTR(-EINVAL);
 410         php = kzalloc(sizeof(*php), GFP_KERNEL);
 411         if (!php) {
 412                 cxio_hal_put_pdid(rhp->rdev.rscp, pdid);
 413                 return ERR_PTR(-ENOMEM);
 414         }
 415         php->pdid = pdid;
 416         php->rhp = rhp;
 417         if (context) {
 418                 if (ib_copy_to_udata(udata, &php->pdid, sizeof (__u32))) {
 419                         iwch_deallocate_pd(&php->ibpd);
 420                         return ERR_PTR(-EFAULT);
 421                 }
 422         }
 423         PDBG("%s pdid 0x%0x ptr 0x%p\n", __FUNCTION__, pdid, php);
 424         return &php->ibpd;
 425 }
 426
 427 static int iwch_dereg_mr(struct ib_mr *ib_mr)
 428 {
 429         struct iwch_dev *rhp;
 430         struct iwch_mr *mhp;
 431         u32 mmid;
 432
 433         PDBG("%s ib_mr %p\n", __FUNCTION__, ib_mr);
 434         /* There can be no memory windows */
 435         if (atomic_read(&ib_mr->usecnt))
 436                 return -EINVAL;
 437
 438         mhp = to_iwch_mr(ib_mr);
 439         rhp = mhp->rhp;
 440         mmid = mhp->attr.stag >> 8;
 441         cxio_dereg_mem(&rhp->rdev, mhp->attr.stag, mhp->attr.pbl_size,
 442                        mhp->attr.pbl_addr);
 443         remove_handle(rhp, &rhp->mmidr, mmid);
 444         if (mhp->kva)
 445                 kfree((void *) (unsigned long) mhp->kva);
 446         PDBG("%s mmid 0x%x ptr %p\n", __FUNCTION__, mmid, mhp);
 447         kfree(mhp);
 448         return 0;
 449 }
 450
 451 static struct ib_mr *iwch_register_phys_mem(struct ib_pd *pd,
 452                                         struct ib_phys_buf *buffer_list,
 453                                         int num_phys_buf,
 454                                         int acc,
 455                                         u64 *iova_start)
 456 {
 457         __be64 *page_list;
 458         int shift;
 459         u64 total_size;
 460         int npages;
 461         struct iwch_dev *rhp;
 462         struct iwch_pd *php;
 463         struct iwch_mr *mhp;
 464         int ret;
 465
 466         PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
 467         php = to_iwch_pd(pd);
 468         rhp = php->rhp;
 469
 470         mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
 471         if (!mhp)
 472                 return ERR_PTR(-ENOMEM);
 473
 474         /* First check that we have enough alignment */
 475         if ((*iova_start & ~PAGE_MASK) != (buffer_list[0].addr & ~PAGE_MASK)) {
 476                 ret = -EINVAL;
 477                 goto err;
 478         }
 479
 480         if (num_phys_buf > 1 &&
 481             ((buffer_list[0].addr + buffer_list[0].size) & ~PAGE_MASK)) {
 482                 ret = -EINVAL;
 483                 goto err;
 484         }
 485
 486         ret = build_phys_page_list(buffer_list, num_phys_buf, iova_start,
 487                                    &total_size, &npages, &shift, &page_list);
 488         if (ret)
 489                 goto err;
 490
 491         mhp->rhp = rhp;
 492         mhp->attr.pdid = php->pdid;
 493         mhp->attr.zbva = 0;
 494
 495         mhp->attr.perms = iwch_ib_to_tpt_access(acc);
 496         mhp->attr.va_fbo = *iova_start;
 497         mhp->attr.page_size = shift - 12;
 498
 499         mhp->attr.len = (u32) total_size;
 500         mhp->attr.pbl_size = npages;
 501         ret = iwch_register_mem(rhp, php, mhp, shift, page_list);
 502         kfree(page_list);
 503         if (ret) {
 504                 goto err;
 505         }
 506         return &mhp->ibmr;
 507 err:
 508         kfree(mhp);
 509         return ERR_PTR(ret);
 510
 511 }
 512
 513 static int iwch_reregister_phys_mem(struct ib_mr *mr,
 514                                      int mr_rereg_mask,
 515                                      struct ib_pd *pd,
 516                                      struct ib_phys_buf *buffer_list,
 517                                      int num_phys_buf,
 518                                      int acc, u64 * iova_start)
 519 {
 520
 521         struct iwch_mr mh, *mhp;
 522         struct iwch_pd *php;
 523         struct iwch_dev *rhp;
 524         __be64 *page_list = NULL;
 525         int shift = 0;
 526         u64 total_size;
 527         int npages;
 528         int ret;
 529
 530         PDBG("%s ib_mr %p ib_pd %p\n", __FUNCTION__, mr, pd);
 531
 532         /* There can be no memory windows */
 533         if (atomic_read(&mr->usecnt))
 534                 return -EINVAL;
 535
 536         mhp = to_iwch_mr(mr);
 537         rhp = mhp->rhp;
 538         php = to_iwch_pd(mr->pd);
 539
 540         /* make sure we are on the same adapter */
 541         if (rhp != php->rhp)
 542                 return -EINVAL;
 543
 544         memcpy(&mh, mhp, sizeof *mhp);
 545
 546         if (mr_rereg_mask & IB_MR_REREG_PD)
 547                 php = to_iwch_pd(pd);
 548         if (mr_rereg_mask & IB_MR_REREG_ACCESS)
 549                 mh.attr.perms = iwch_ib_to_tpt_access(acc);
 550         if (mr_rereg_mask & IB_MR_REREG_TRANS) {
 551                 ret = build_phys_page_list(buffer_list, num_phys_buf,
 552                                            iova_start,
 553                                            &total_size, &npages,
 554                                            &shift, &page_list);
 555                 if (ret)
 556                         return ret;
 557         }
 558
 559         ret = iwch_reregister_mem(rhp, php, &mh, shift, page_list, npages);
 560         kfree(page_list);
 561         if (ret) {
 562                 return ret;
 563         }
 564         if (mr_rereg_mask & IB_MR_REREG_PD)
 565                 mhp->attr.pdid = php->pdid;
 566         if (mr_rereg_mask & IB_MR_REREG_ACCESS)
 567                 mhp->attr.perms = iwch_ib_to_tpt_access(acc);
 568         if (mr_rereg_mask & IB_MR_REREG_TRANS) {
 569                 mhp->attr.zbva = 0;
 570                 mhp->attr.va_fbo = *iova_start;
 571                 mhp->attr.page_size = shift - 12;
 572                 mhp->attr.len = (u32) total_size;
 573                 mhp->attr.pbl_size = npages;
 574         }
 575
 576         return 0;
 577 }
 578
 579
 580 static struct ib_mr *iwch_reg_user_mr(struct ib_pd *pd, struct ib_umem *region,
 581                                       int acc, struct ib_udata *udata)
 582 {
 583         __be64 *pages;
 584         int shift, n, len;
 585         int i, j, k;
 586         int err = 0;
 587         struct ib_umem_chunk *chunk;
 588         struct iwch_dev *rhp;
 589         struct iwch_pd *php;
 590         struct iwch_mr *mhp;
 591         struct iwch_reg_user_mr_resp uresp;
 592
 593         PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
 594         shift = ffs(region->page_size) - 1;
 595
 596         php = to_iwch_pd(pd);
 597         rhp = php->rhp;
 598         mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
 599         if (!mhp)
 600                 return ERR_PTR(-ENOMEM);
 601
 602         n = 0;
 603         list_for_each_entry(chunk, &region->chunk_list, list)
 604                 n += chunk->nents;
 605
 606         pages = kmalloc(n * sizeof(u64), GFP_KERNEL);
 607         if (!pages) {
 608                 err = -ENOMEM;
 609                 goto err;
 610         }
 611
 612         i = n = 0;
 613
 614         list_for_each_entry(chunk, &region->chunk_list, list)
 615                 for (j = 0; j < chunk->nmap; ++j) {
 616                         len = sg_dma_len(&chunk->page_list[j]) >> shift;
 617                         for (k = 0; k < len; ++k) {
 618                                 pages[i++] = cpu_to_be64(sg_dma_address(
 619                                         &chunk->page_list[j]) +
 620                                         region->page_size * k);
 621                         }
 622                 }
 623
 624         mhp->rhp = rhp;
 625         mhp->attr.pdid = php->pdid;
 626         mhp->attr.zbva = 0;
 627         mhp->attr.perms = iwch_ib_to_tpt_access(acc);
 628         mhp->attr.va_fbo = region->virt_base;
 629         mhp->attr.page_size = shift - 12;
 630         mhp->attr.len = (u32) region->length;
 631         mhp->attr.pbl_size = i;
 632         err = iwch_register_mem(rhp, php, mhp, shift, pages);
 633         kfree(pages);
 634         if (err)
 635                 goto err;
 636
 637         if (udata && t3b_device(rhp)) {
 638                 uresp.pbl_addr = (mhp->attr.pbl_addr -
 639                                  rhp->rdev.rnic_info.pbl_base) >> 3;
 640                 PDBG("%s user resp pbl_addr 0x%x\n", __FUNCTION__,
 641                      uresp.pbl_addr);
 642
 643                 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
 644                         iwch_dereg_mr(&mhp->ibmr);
 645                         err = -EFAULT;
 646                         goto err;
 647                 }
 648         }
 649
 650         return &mhp->ibmr;
 651
 652 err:
 653         kfree(mhp);
 654         return ERR_PTR(err);
 655 }
 656
 657 static struct ib_mr *iwch_get_dma_mr(struct ib_pd *pd, int acc)
 658 {
 659         struct ib_phys_buf bl;
 660         u64 kva;
 661         struct ib_mr *ibmr;
 662
 663         PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
 664
 665         /*
 666          * T3 only supports 32 bits of size.
 667          */
 668         bl.size = 0xffffffff;
 669         bl.addr = 0;
 670         kva = 0;
 671         ibmr = iwch_register_phys_mem(pd, &bl, 1, acc, &kva);
 672         return ibmr;
 673 }
 674
 675 static struct ib_mw *iwch_alloc_mw(struct ib_pd *pd)
 676 {
 677         struct iwch_dev *rhp;
 678         struct iwch_pd *php;
 679         struct iwch_mw *mhp;
 680         u32 mmid;
 681         u32 stag = 0;
 682         int ret;
 683
 684         php = to_iwch_pd(pd);
 685         rhp = php->rhp;
 686         mhp = kzalloc(sizeof(*mhp), GFP_KERNEL);
 687         if (!mhp)
 688                 return ERR_PTR(-ENOMEM);
 689         ret = cxio_allocate_window(&rhp->rdev, &stag, php->pdid);
 690         if (ret) {
 691                 kfree(mhp);
 692                 return ERR_PTR(ret);
 693         }
 694         mhp->rhp = rhp;
 695         mhp->attr.pdid = php->pdid;
 696         mhp->attr.type = TPT_MW;
 697         mhp->attr.stag = stag;
 698         mmid = (stag) >> 8;
 699         insert_handle(rhp, &rhp->mmidr, mhp, mmid);
 700         PDBG("%s mmid 0x%x mhp %p stag 0x%x\n", __FUNCTION__, mmid, mhp, stag);
 701         return &(mhp->ibmw);
 702 }
 703
 704 static int iwch_dealloc_mw(struct ib_mw *mw)
 705 {
 706         struct iwch_dev *rhp;
 707         struct iwch_mw *mhp;
 708         u32 mmid;
 709
 710         mhp = to_iwch_mw(mw);
 711         rhp = mhp->rhp;
 712         mmid = (mw->rkey) >> 8;
 713         cxio_deallocate_window(&rhp->rdev, mhp->attr.stag);
 714         remove_handle(rhp, &rhp->mmidr, mmid);
 715         kfree(mhp);
 716         PDBG("%s ib_mw %p mmid 0x%x ptr %p\n", __FUNCTION__, mw, mmid, mhp);
 717         return 0;
 718 }
 719
 720 static int iwch_destroy_qp(struct ib_qp *ib_qp)
 721 {
 722         struct iwch_dev *rhp;
 723         struct iwch_qp *qhp;
 724         struct iwch_qp_attributes attrs;
 725         struct iwch_ucontext *ucontext;
 726
 727         qhp = to_iwch_qp(ib_qp);
 728         rhp = qhp->rhp;
 729
 730         attrs.next_state = IWCH_QP_STATE_ERROR;
 731         iwch_modify_qp(rhp, qhp, IWCH_QP_ATTR_NEXT_STATE, &attrs, 0);
 732         wait_event(qhp->wait, !qhp->ep);
 733
 734         remove_handle(rhp, &rhp->qpidr, qhp->wq.qpid);
 735
 736         atomic_dec(&qhp->refcnt);
 737         wait_event(qhp->wait, !atomic_read(&qhp->refcnt));
 738
 739         ucontext = ib_qp->uobject ? to_iwch_ucontext(ib_qp->uobject->context)
 740                                   : NULL;
 741         cxio_destroy_qp(&rhp->rdev, &qhp->wq,
 742                         ucontext ? &ucontext->uctx : &rhp->rdev.uctx);
 743
 744         PDBG("%s ib_qp %p qpid 0x%0x qhp %p\n", __FUNCTION__,
 745              ib_qp, qhp->wq.qpid, qhp);
 746         kfree(qhp);
 747         return 0;
 748 }
 749
 750 static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
 751                              struct ib_qp_init_attr *attrs,
 752                              struct ib_udata *udata)
 753 {
 754         struct iwch_dev *rhp;
 755         struct iwch_qp *qhp;
 756         struct iwch_pd *php;
 757         struct iwch_cq *schp;
 758         struct iwch_cq *rchp;
 759         struct iwch_create_qp_resp uresp;
 760         int wqsize, sqsize, rqsize;
 761         struct iwch_ucontext *ucontext;
 762
 763         PDBG("%s ib_pd %p\n", __FUNCTION__, pd);
 764         if (attrs->qp_type != IB_QPT_RC)
 765                 return ERR_PTR(-EINVAL);
 766         php = to_iwch_pd(pd);
 767         rhp = php->rhp;
 768         schp = get_chp(rhp, ((struct iwch_cq *) attrs->send_cq)->cq.cqid);
 769         rchp = get_chp(rhp, ((struct iwch_cq *) attrs->recv_cq)->cq.cqid);
 770         if (!schp || !rchp)
 771                 return ERR_PTR(-EINVAL);
 772
 773         /* The RQT size must be # of entries + 1 rounded up to a power of two */
 774         rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr);
 775         if (rqsize == attrs->cap.max_recv_wr)
 776                 rqsize = roundup_pow_of_two(attrs->cap.max_recv_wr+1);
 777
 778         /* T3 doesn't support RQT depth < 16 */
 779         if (rqsize < 16)
 780                 rqsize = 16;
 781
 782         if (rqsize > T3_MAX_RQ_SIZE)
 783                 return ERR_PTR(-EINVAL);
 784
 785         if (attrs->cap.max_inline_data > T3_MAX_INLINE)
 786                 return ERR_PTR(-EINVAL);
 787
 788         /*
 789          * NOTE: The SQ and total WQ sizes don't need to be
 790          * a power of two.  However, all the code assumes
 791          * they are. EG: Q_FREECNT() and friends.
 792          */
 793         sqsize = roundup_pow_of_two(attrs->cap.max_send_wr);
 794         wqsize = roundup_pow_of_two(rqsize + sqsize);
 795         PDBG("%s wqsize %d sqsize %d rqsize %d\n", __FUNCTION__,
 796              wqsize, sqsize, rqsize);
 797         qhp = kzalloc(sizeof(*qhp), GFP_KERNEL);
 798         if (!qhp)
 799                 return ERR_PTR(-ENOMEM);
 800         qhp->wq.size_log2 = ilog2(wqsize);
 801         qhp->wq.rq_size_log2 = ilog2(rqsize);
 802         qhp->wq.sq_size_log2 = ilog2(sqsize);
 803         ucontext = pd->uobject ? to_iwch_ucontext(pd->uobject->context) : NULL;
 804         if (cxio_create_qp(&rhp->rdev, !udata, &qhp->wq,
 805                            ucontext ? &ucontext->uctx : &rhp->rdev.uctx)) {
 806                 kfree(qhp);
 807                 return ERR_PTR(-ENOMEM);
 808         }
 809         attrs->cap.max_recv_wr = rqsize - 1;
 810         attrs->cap.max_send_wr = sqsize;
 811         qhp->rhp = rhp;
 812         qhp->attr.pd = php->pdid;
 813         qhp->attr.scq = ((struct iwch_cq *) attrs->send_cq)->cq.cqid;
 814         qhp->attr.rcq = ((struct iwch_cq *) attrs->recv_cq)->cq.cqid;
 815         qhp->attr.sq_num_entries = attrs->cap.max_send_wr;
 816         qhp->attr.rq_num_entries = attrs->cap.max_recv_wr;
 817         qhp->attr.sq_max_sges = attrs->cap.max_send_sge;
 818         qhp->attr.sq_max_sges_rdma_write = attrs->cap.max_send_sge;
 819         qhp->attr.rq_max_sges = attrs->cap.max_recv_sge;
 820         qhp->attr.state = IWCH_QP_STATE_IDLE;
 821         qhp->attr.next_state = IWCH_QP_STATE_IDLE;
 822
 823         /*
 824          * XXX - These don't get passed in from the openib user
 825          * at create time.  The CM sets them via a QP modify.
 826          * Need to fix...  I think the CM should
 827          */
 828         qhp->attr.enable_rdma_read = 1;
 829         qhp->attr.enable_rdma_write = 1;
 830         qhp->attr.enable_bind = 1;
 831         qhp->attr.max_ord = 1;
 832         qhp->attr.max_ird = 1;
 833
 834         spin_lock_init(&qhp->lock);
 835         init_waitqueue_head(&qhp->wait);
 836         atomic_set(&qhp->refcnt, 1);
 837         insert_handle(rhp, &rhp->qpidr, qhp, qhp->wq.qpid);
 838
 839         if (udata) {
 840
 841                 struct iwch_mm_entry *mm1, *mm2;
 842
 843                 mm1 = kmalloc(sizeof *mm1, GFP_KERNEL);
 844                 if (!mm1) {
 845                         iwch_destroy_qp(&qhp->ibqp);
 846                         return ERR_PTR(-ENOMEM);
 847                 }
 848
 849                 mm2 = kmalloc(sizeof *mm2, GFP_KERNEL);
 850                 if (!mm2) {
 851                         kfree(mm1);
 852                         iwch_destroy_qp(&qhp->ibqp);
 853                         return ERR_PTR(-ENOMEM);
 854                 }
 855
 856                 uresp.qpid = qhp->wq.qpid;
 857                 uresp.size_log2 = qhp->wq.size_log2;
 858                 uresp.sq_size_log2 = qhp->wq.sq_size_log2;
 859                 uresp.rq_size_log2 = qhp->wq.rq_size_log2;
 860                 spin_lock(&ucontext->mmap_lock);
 861                 uresp.key = ucontext->key;
 862                 ucontext->key += PAGE_SIZE;
 863                 uresp.db_key = ucontext->key;
 864                 ucontext->key += PAGE_SIZE;
 865                 spin_unlock(&ucontext->mmap_lock);
 866                 if (ib_copy_to_udata(udata, &uresp, sizeof (uresp))) {
 867                         kfree(mm1);
 868                         kfree(mm2);
 869                         iwch_destroy_qp(&qhp->ibqp);
 870                         return ERR_PTR(-EFAULT);
 871                 }
 872                 mm1->key = uresp.key;
 873                 mm1->addr = virt_to_phys(qhp->wq.queue);
 874                 mm1->len = PAGE_ALIGN(wqsize * sizeof (union t3_wr));
 875                 insert_mmap(ucontext, mm1);
 876                 mm2->key = uresp.db_key;
 877                 mm2->addr = qhp->wq.udb & PAGE_MASK;
 878                 mm2->len = PAGE_SIZE;
 879                 insert_mmap(ucontext, mm2);
 880         }
 881         qhp->ibqp.qp_num = qhp->wq.qpid;
 882         init_timer(&(qhp->timer));
 883         PDBG("%s sq_num_entries %d, rq_num_entries %d "
 884              "qpid 0x%0x qhp %p dma_addr 0x%llx size %d\n",
 885              __FUNCTION__, qhp->attr.sq_num_entries, qhp->attr.rq_num_entries,
 886              qhp->wq.qpid, qhp, (unsigned long long) qhp->wq.dma_addr,
 887              1 << qhp->wq.size_log2);
 888         return &qhp->ibqp;
 889 }
 890
 891 static int iwch_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 892                       int attr_mask, struct ib_udata *udata)
 893 {
 894         struct iwch_dev *rhp;
 895         struct iwch_qp *qhp;
 896         enum iwch_qp_attr_mask mask = 0;
 897         struct iwch_qp_attributes attrs;
 898
 899         PDBG("%s ib_qp %p\n", __FUNCTION__, ibqp);
 900
 901         /* iwarp does not support the RTR state */
 902         if ((attr_mask & IB_QP_STATE) && (attr->qp_state == IB_QPS_RTR))
 903                 attr_mask &= ~IB_QP_STATE;
 904
 905         /* Make sure we still have something left to do */
 906         if (!attr_mask)
 907                 return 0;
 908
 909         memset(&attrs, 0, sizeof attrs);
 910         qhp = to_iwch_qp(ibqp);
 911         rhp = qhp->rhp;
 912
 913         attrs.next_state = iwch_convert_state(attr->qp_state);
 914         attrs.enable_rdma_read = (attr->qp_access_flags &
 915                                IB_ACCESS_REMOTE_READ) ?  1 : 0;
 916         attrs.enable_rdma_write = (attr->qp_access_flags &
 917                                 IB_ACCESS_REMOTE_WRITE) ? 1 : 0;
 918         attrs.enable_bind = (attr->qp_access_flags & IB_ACCESS_MW_BIND) ? 1 : 0;
 919
 920
 921         mask |= (attr_mask & IB_QP_STATE) ? IWCH_QP_ATTR_NEXT_STATE : 0;
 922         mask |= (attr_mask & IB_QP_ACCESS_FLAGS) ?
 923                         (IWCH_QP_ATTR_ENABLE_RDMA_READ |
 924                          IWCH_QP_ATTR_ENABLE_RDMA_WRITE |
 925                          IWCH_QP_ATTR_ENABLE_RDMA_BIND) : 0;
 926
 927         return iwch_modify_qp(rhp, qhp, mask, &attrs, 0);
 928 }
 929
 930 void iwch_qp_add_ref(struct ib_qp *qp)
 931 {
 932         PDBG("%s ib_qp %p\n", __FUNCTION__, qp);
 933         atomic_inc(&(to_iwch_qp(qp)->refcnt));
 934 }
 935
 936 void iwch_qp_rem_ref(struct ib_qp *qp)
 937 {
 938         PDBG("%s ib_qp %p\n", __FUNCTION__, qp);
 939         if (atomic_dec_and_test(&(to_iwch_qp(qp)->refcnt)))
 940                 wake_up(&(to_iwch_qp(qp)->wait));
 941 }
 942
 943 static struct ib_qp *iwch_get_qp(struct ib_device *dev, int qpn)
 944 {
 945         PDBG("%s ib_dev %p qpn 0x%x\n", __FUNCTION__, dev, qpn);
 946         return (struct ib_qp *)get_qhp(to_iwch_dev(dev), qpn);
 947 }
 948
 949
 950 static int iwch_query_pkey(struct ib_device *ibdev,
 951                            u8 port, u16 index, u16 * pkey)
 952 {
 953         PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
 954         *pkey = 0;
 955         return 0;
 956 }
 957
 958 static int iwch_query_gid(struct ib_device *ibdev, u8 port,
 959                           int index, union ib_gid *gid)
 960 {
 961         struct iwch_dev *dev;
 962
 963         PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
 964                __FUNCTION__, ibdev, port, index, gid);
 965         dev = to_iwch_dev(ibdev);
 966         BUG_ON(port == 0 || port > 2);
 967         memset(&(gid->raw[0]), 0, sizeof(gid->raw));
 968         memcpy(&(gid->raw[0]), dev->rdev.port_info.lldevs[port-1]->dev_addr, 6);
 969         return 0;
 970 }
 971
 972 static int iwch_query_device(struct ib_device *ibdev,
 973                              struct ib_device_attr *props)
 974 {
 975
 976         struct iwch_dev *dev;
 977         PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
 978
 979         dev = to_iwch_dev(ibdev);
 980         memset(props, 0, sizeof *props);
 981         memcpy(&props->sys_image_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
 982         props->device_cap_flags = dev->device_cap_flags;
 983         props->vendor_id = (u32)dev->rdev.rnic_info.pdev->vendor;
 984         props->vendor_part_id = (u32)dev->rdev.rnic_info.pdev->device;
 985         props->max_mr_size = ~0ull;
 986         props->max_qp = dev->attr.max_qps;
 987         props->max_qp_wr = dev->attr.max_wrs;
 988         props->max_sge = dev->attr.max_sge_per_wr;
 989         props->max_sge_rd = 1;
 990         props->max_qp_rd_atom = dev->attr.max_rdma_reads_per_qp;
 991         props->max_cq = dev->attr.max_cqs;
 992         props->max_cqe = dev->attr.max_cqes_per_cq;
 993         props->max_mr = dev->attr.max_mem_regs;
 994         props->max_pd = dev->attr.max_pds;
 995         props->local_ca_ack_delay = 0;
 996
 997         return 0;
 998 }
 999
1000 static int iwch_query_port(struct ib_device *ibdev,
1001                            u8 port, struct ib_port_attr *props)
1002 {
1003         PDBG("%s ibdev %p\n", __FUNCTION__, ibdev);
1004         props->max_mtu = IB_MTU_4096;
1005         props->lid = 0;
1006         props->lmc = 0;
1007         props->sm_lid = 0;
1008         props->sm_sl = 0;
1009         props->state = IB_PORT_ACTIVE;
1010         props->phys_state = 0;
1011         props->port_cap_flags =
1012             IB_PORT_CM_SUP |
1013             IB_PORT_SNMP_TUNNEL_SUP |
1014             IB_PORT_REINIT_SUP |
1015             IB_PORT_DEVICE_MGMT_SUP |
1016             IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
1017         props->gid_tbl_len = 1;
1018         props->pkey_tbl_len = 1;
1019         props->qkey_viol_cntr = 0;
1020         props->active_width = 2;
1021         props->active_speed = 2;
1022         props->max_msg_sz = -1;
1023
1024         return 0;
1025 }
1026
1027 static ssize_t show_rev(struct class_device *cdev, char *buf)
1028 {
1029         struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
1030                                             ibdev.class_dev);
1031         PDBG("%s class dev 0x%p\n", __FUNCTION__, cdev);
1032         return sprintf(buf, "%d\n", dev->rdev.t3cdev_p->type);
1033 }
1034
1035 static ssize_t show_fw_ver(struct class_device *cdev, char *buf)
1036 {
1037         struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
1038                                             ibdev.class_dev);
1039         struct ethtool_drvinfo info;
1040         struct net_device *lldev = dev->rdev.t3cdev_p->lldev;
1041
1042         PDBG("%s class dev 0x%p\n", __FUNCTION__, cdev);
1043         lldev->ethtool_ops->get_drvinfo(lldev, &info);
1044         return sprintf(buf, "%s\n", info.fw_version);
1045 }
1046
1047 static ssize_t show_hca(struct class_device *cdev, char *buf)
1048 {
1049         struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
1050                                             ibdev.class_dev);
1051         struct ethtool_drvinfo info;
1052         struct net_device *lldev = dev->rdev.t3cdev_p->lldev;
1053
1054         PDBG("%s class dev 0x%p\n", __FUNCTION__, cdev);
1055         lldev->ethtool_ops->get_drvinfo(lldev, &info);
1056         return sprintf(buf, "%s\n", info.driver);
1057 }
1058
1059 static ssize_t show_board(struct class_device *cdev, char *buf)
1060 {
1061         struct iwch_dev *dev = container_of(cdev, struct iwch_dev,
1062                                             ibdev.class_dev);
1063         PDBG("%s class dev 0x%p\n", __FUNCTION__, dev);
1064         return sprintf(buf, "%x.%x\n", dev->rdev.rnic_info.pdev->vendor,
1065                                        dev->rdev.rnic_info.pdev->device);
1066 }
1067
1068 static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
1069 static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
1070 static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
1071 static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
1072
1073 static struct class_device_attribute *iwch_class_attributes[] = {
1074         &class_device_attr_hw_rev,
1075         &class_device_attr_fw_ver,
1076         &class_device_attr_hca_type,
1077         &class_device_attr_board_id
1078 };
1079
1080 int iwch_register_device(struct iwch_dev *dev)
1081 {
1082         int ret;
1083         int i;
1084
1085         PDBG("%s iwch_dev %p\n", __FUNCTION__, dev);
1086         strlcpy(dev->ibdev.name, "cxgb3_%d", IB_DEVICE_NAME_MAX);
1087         memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
1088         memcpy(&dev->ibdev.node_guid, dev->rdev.t3cdev_p->lldev->dev_addr, 6);
1089         dev->ibdev.owner = THIS_MODULE;
1090         dev->device_cap_flags =
1091             (IB_DEVICE_ZERO_STAG |
1092              IB_DEVICE_SEND_W_INV | IB_DEVICE_MEM_WINDOW);
1093
1094         dev->ibdev.uverbs_cmd_mask =
1095             (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
1096             (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
1097             (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
1098             (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
1099             (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
1100             (1ull << IB_USER_VERBS_CMD_REG_MR) |
1101             (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
1102             (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
1103             (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
1104             (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
1105             (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
1106             (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
1107             (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
1108             (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
1109             (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
1110             (1ull << IB_USER_VERBS_CMD_POST_SEND) |
1111             (1ull << IB_USER_VERBS_CMD_POST_RECV);
1112         dev->ibdev.node_type = RDMA_NODE_RNIC;
1113         memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
1114         dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
1115         dev->ibdev.num_comp_vectors = 1;
1116         dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
1117         dev->ibdev.query_device = iwch_query_device;
1118         dev->ibdev.query_port = iwch_query_port;
1119         dev->ibdev.modify_port = iwch_modify_port;
1120         dev->ibdev.query_pkey = iwch_query_pkey;
1121         dev->ibdev.query_gid = iwch_query_gid;
1122         dev->ibdev.alloc_ucontext = iwch_alloc_ucontext;
1123         dev->ibdev.dealloc_ucontext = iwch_dealloc_ucontext;
1124         dev->ibdev.mmap = iwch_mmap;
1125         dev->ibdev.alloc_pd = iwch_allocate_pd;
1126         dev->ibdev.dealloc_pd = iwch_deallocate_pd;
1127         dev->ibdev.create_ah = iwch_ah_create;
1128         dev->ibdev.destroy_ah = iwch_ah_destroy;
1129         dev->ibdev.create_qp = iwch_create_qp;
1130         dev->ibdev.modify_qp = iwch_ib_modify_qp;
1131         dev->ibdev.destroy_qp = iwch_destroy_qp;
1132         dev->ibdev.create_cq = iwch_create_cq;
1133         dev->ibdev.destroy_cq = iwch_destroy_cq;
1134         dev->ibdev.resize_cq = iwch_resize_cq;
1135         dev->ibdev.poll_cq = iwch_poll_cq;
1136         dev->ibdev.get_dma_mr = iwch_get_dma_mr;
1137         dev->ibdev.reg_phys_mr = iwch_register_phys_mem;
1138         dev->ibdev.rereg_phys_mr = iwch_reregister_phys_mem;
1139         dev->ibdev.reg_user_mr = iwch_reg_user_mr;
1140         dev->ibdev.dereg_mr = iwch_dereg_mr;
1141         dev->ibdev.alloc_mw = iwch_alloc_mw;
1142         dev->ibdev.bind_mw = iwch_bind_mw;
1143         dev->ibdev.dealloc_mw = iwch_dealloc_mw;
1144
1145         dev->ibdev.attach_mcast = iwch_multicast_attach;
1146         dev->ibdev.detach_mcast = iwch_multicast_detach;
1147         dev->ibdev.process_mad = iwch_process_mad;
1148
1149         dev->ibdev.req_notify_cq = iwch_arm_cq;
1150         dev->ibdev.post_send = iwch_post_send;
1151         dev->ibdev.post_recv = iwch_post_receive;
1152
1153
1154         dev->ibdev.iwcm =
1155             (struct iw_cm_verbs *) kmalloc(sizeof(struct iw_cm_verbs),
1156                                            GFP_KERNEL);
1157         dev->ibdev.iwcm->connect = iwch_connect;
1158         dev->ibdev.iwcm->accept = iwch_accept_cr;
1159         dev->ibdev.iwcm->reject = iwch_reject_cr;
1160         dev->ibdev.iwcm->create_listen = iwch_create_listen;
1161         dev->ibdev.iwcm->destroy_listen = iwch_destroy_listen;
1162         dev->ibdev.iwcm->add_ref = iwch_qp_add_ref;
1163         dev->ibdev.iwcm->rem_ref = iwch_qp_rem_ref;
1164         dev->ibdev.iwcm->get_qp = iwch_get_qp;
1165
1166         ret = ib_register_device(&dev->ibdev);
1167         if (ret)
1168                 goto bail1;
1169
1170         for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i) {
1171                 ret = class_device_create_file(&dev->ibdev.class_dev,
1172                                                iwch_class_attributes[i]);
1173                 if (ret) {
1174                         goto bail2;
1175                 }
1176         }
1177         return 0;
1178 bail2:
1179         ib_unregister_device(&dev->ibdev);
1180 bail1:
1181         return ret;
1182 }
1183
1184 void iwch_unregister_device(struct iwch_dev *dev)
1185 {
1186         int i;
1187
1188         PDBG("%s iwch_dev %p\n", __FUNCTION__, dev);
1189         for (i = 0; i < ARRAY_SIZE(iwch_class_attributes); ++i)
1190                 class_device_remove_file(&dev->ibdev.class_dev,
1191                                          iwch_class_attributes[i]);
1192         ib_unregister_device(&dev->ibdev);
1193         return;
1194 }