drivers/infiniband/hw/cxgb4/provider.c

   1 /*
   2  * Copyright (c) 2009-2010 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 #include <linux/inetdevice.h>
  44 #include <linux/io.h>
  45
  46 #include <asm/irq.h>
  47 #include <asm/byteorder.h>
  48
  49 #include <rdma/iw_cm.h>
  50 #include <rdma/ib_verbs.h>
  51 #include <rdma/ib_smi.h>
  52 #include <rdma/ib_umem.h>
  53 #include <rdma/ib_user_verbs.h>
  54
  55 #include "iw_cxgb4.h"
  56
  57 static int fastreg_support = 1;
  58 module_param(fastreg_support, int, 0644);
  59 MODULE_PARM_DESC(fastreg_support, "Advertise fastreg support (default=1)");
  60
  61 static struct ib_ah *c4iw_ah_create(struct ib_pd *pd,
  62                                     struct ib_ah_attr *ah_attr)
  63 {
  64         return ERR_PTR(-ENOSYS);
  65 }
  66
  67 static int c4iw_ah_destroy(struct ib_ah *ah)
  68 {
  69         return -ENOSYS;
  70 }
  71
  72 static int c4iw_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
  73 {
  74         return -ENOSYS;
  75 }
  76
  77 static int c4iw_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
  78 {
  79         return -ENOSYS;
  80 }
  81
  82 static int c4iw_process_mad(struct ib_device *ibdev, int mad_flags,
  83                             u8 port_num, const struct ib_wc *in_wc,
  84                             const struct ib_grh *in_grh,
  85                             const struct ib_mad_hdr *in_mad,
  86                             size_t in_mad_size,
  87                             struct ib_mad_hdr *out_mad,
  88                             size_t *out_mad_size,
  89                             u16 *out_mad_pkey_index)
  90 {
  91         return -ENOSYS;
  92 }
  93
  94 void _c4iw_free_ucontext(struct kref *kref)
  95 {
  96         struct c4iw_ucontext *ucontext;
  97         struct c4iw_dev *rhp;
  98         struct c4iw_mm_entry *mm, *tmp;
  99
 100         ucontext = container_of(kref, struct c4iw_ucontext, kref);
 101         rhp = to_c4iw_dev(ucontext->ibucontext.device);
 102
 103         PDBG("%s ucontext %p\n", __func__, ucontext);
 104         list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
 105                 kfree(mm);
 106         c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
 107         kfree(ucontext);
 108 }
 109
 110 static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
 111 {
 112         struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
 113
 114         PDBG("%s context %p\n", __func__, context);
 115         c4iw_put_ucontext(ucontext);
 116         return 0;
 117 }
 118
 119 static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev,
 120                                                struct ib_udata *udata)
 121 {
 122         struct c4iw_ucontext *context;
 123         struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
 124         static int warned;
 125         struct c4iw_alloc_ucontext_resp uresp;
 126         int ret = 0;
 127         struct c4iw_mm_entry *mm = NULL;
 128
 129         PDBG("%s ibdev %p\n", __func__, ibdev);
 130         context = kzalloc(sizeof(*context), GFP_KERNEL);
 131         if (!context) {
 132                 ret = -ENOMEM;
 133                 goto err;
 134         }
 135
 136         c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
 137         INIT_LIST_HEAD(&context->mmaps);
 138         spin_lock_init(&context->mmap_lock);
 139         kref_init(&context->kref);
 140
 141         if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
 142                 if (!warned++)
 143                         pr_err(MOD "Warning - downlevel libcxgb4 (non-fatal), device status page disabled.");
 144                 rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
 145         } else {
 146                 mm = kmalloc(sizeof(*mm), GFP_KERNEL);
 147                 if (!mm) {
 148                         ret = -ENOMEM;
 149                         goto err_free;
 150                 }
 151
 152                 uresp.status_page_size = PAGE_SIZE;
 153
 154                 spin_lock(&context->mmap_lock);
 155                 uresp.status_page_key = context->key;
 156                 context->key += PAGE_SIZE;
 157                 spin_unlock(&context->mmap_lock);
 158
 159                 ret = ib_copy_to_udata(udata, &uresp,
 160                                        sizeof(uresp) - sizeof(uresp.reserved));
 161                 if (ret)
 162                         goto err_mm;
 163
 164                 mm->key = uresp.status_page_key;
 165                 mm->addr = virt_to_phys(rhp->rdev.status_page);
 166                 mm->len = PAGE_SIZE;
 167                 insert_mmap(context, mm);
 168         }
 169         return &context->ibucontext;
 170 err_mm:
 171         kfree(mm);
 172 err_free:
 173         kfree(context);
 174 err:
 175         return ERR_PTR(ret);
 176 }
 177
 178 static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 179 {
 180         int len = vma->vm_end - vma->vm_start;
 181         u32 key = vma->vm_pgoff << PAGE_SHIFT;
 182         struct c4iw_rdev *rdev;
 183         int ret = 0;
 184         struct c4iw_mm_entry *mm;
 185         struct c4iw_ucontext *ucontext;
 186         u64 addr;
 187
 188         PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
 189              key, len);
 190
 191         if (vma->vm_start & (PAGE_SIZE-1))
 192                 return -EINVAL;
 193
 194         rdev = &(to_c4iw_dev(context->device)->rdev);
 195         ucontext = to_c4iw_ucontext(context);
 196
 197         mm = remove_mmap(ucontext, key, len);
 198         if (!mm)
 199                 return -EINVAL;
 200         addr = mm->addr;
 201         kfree(mm);
 202
 203         if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
 204             (addr < (pci_resource_start(rdev->lldi.pdev, 0) +
 205                     pci_resource_len(rdev->lldi.pdev, 0)))) {
 206
 207                 /*
 208                  * MA_SYNC register...
 209                  */
 210                 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 211                 ret = io_remap_pfn_range(vma, vma->vm_start,
 212                                          addr >> PAGE_SHIFT,
 213                                          len, vma->vm_page_prot);
 214         } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
 215                    (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
 216                     pci_resource_len(rdev->lldi.pdev, 2)))) {
 217
 218                 /*
 219                  * Map user DB or OCQP memory...
 220                  */
 221                 if (addr >= rdev->oc_mw_pa)
 222                         vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
 223                 else {
 224                         if (!is_t4(rdev->lldi.adapter_type))
 225                                 vma->vm_page_prot =
 226                                         t4_pgprot_wc(vma->vm_page_prot);
 227                         else
 228                                 vma->vm_page_prot =
 229                                         pgprot_noncached(vma->vm_page_prot);
 230                 }
 231                 ret = io_remap_pfn_range(vma, vma->vm_start,
 232                                          addr >> PAGE_SHIFT,
 233                                          len, vma->vm_page_prot);
 234         } else {
 235
 236                 /*
 237                  * Map WQ or CQ contig dma memory...
 238                  */
 239                 ret = remap_pfn_range(vma, vma->vm_start,
 240                                       addr >> PAGE_SHIFT,
 241                                       len, vma->vm_page_prot);
 242         }
 243
 244         return ret;
 245 }
 246
 247 static int c4iw_deallocate_pd(struct ib_pd *pd)
 248 {
 249         struct c4iw_dev *rhp;
 250         struct c4iw_pd *php;
 251
 252         php = to_c4iw_pd(pd);
 253         rhp = php->rhp;
 254         PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
 255         c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
 256         mutex_lock(&rhp->rdev.stats.lock);
 257         rhp->rdev.stats.pd.cur--;
 258         mutex_unlock(&rhp->rdev.stats.lock);
 259         kfree(php);
 260         return 0;
 261 }
 262
 263 static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev,
 264                                       struct ib_ucontext *context,
 265                                       struct ib_udata *udata)
 266 {
 267         struct c4iw_pd *php;
 268         u32 pdid;
 269         struct c4iw_dev *rhp;
 270
 271         PDBG("%s ibdev %p\n", __func__, ibdev);
 272         rhp = (struct c4iw_dev *) ibdev;
 273         pdid =  c4iw_get_resource(&rhp->rdev.resource.pdid_table);
 274         if (!pdid)
 275                 return ERR_PTR(-EINVAL);
 276         php = kzalloc(sizeof(*php), GFP_KERNEL);
 277         if (!php) {
 278                 c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid);
 279                 return ERR_PTR(-ENOMEM);
 280         }
 281         php->pdid = pdid;
 282         php->rhp = rhp;
 283         if (context) {
 284                 if (ib_copy_to_udata(udata, &php->pdid, sizeof(u32))) {
 285                         c4iw_deallocate_pd(&php->ibpd);
 286                         return ERR_PTR(-EFAULT);
 287                 }
 288         }
 289         mutex_lock(&rhp->rdev.stats.lock);
 290         rhp->rdev.stats.pd.cur++;
 291         if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
 292                 rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
 293         mutex_unlock(&rhp->rdev.stats.lock);
 294         PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
 295         return &php->ibpd;
 296 }
 297
 298 static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 299                            u16 *pkey)
 300 {
 301         PDBG("%s ibdev %p\n", __func__, ibdev);
 302         *pkey = 0;
 303         return 0;
 304 }
 305
 306 static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
 307                           union ib_gid *gid)
 308 {
 309         struct c4iw_dev *dev;
 310
 311         PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
 312                __func__, ibdev, port, index, gid);
 313         dev = to_c4iw_dev(ibdev);
 314         BUG_ON(port == 0);
 315         memset(&(gid->raw[0]), 0, sizeof(gid->raw));
 316         memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
 317         return 0;
 318 }
 319
 320 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props,
 321                              struct ib_udata *uhw)
 322 {
 323
 324         struct c4iw_dev *dev;
 325
 326         PDBG("%s ibdev %p\n", __func__, ibdev);
 327
 328         if (uhw->inlen || uhw->outlen)
 329                 return -EINVAL;
 330
 331         dev = to_c4iw_dev(ibdev);
 332         memset(props, 0, sizeof *props);
 333         memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
 334         props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
 335         props->fw_ver = dev->rdev.lldi.fw_vers;
 336         props->device_cap_flags = dev->device_cap_flags;
 337         props->page_size_cap = T4_PAGESIZE_MASK;
 338         props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
 339         props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
 340         props->max_mr_size = T4_MAX_MR_SIZE;
 341         props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
 342         props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
 343         props->max_sge = T4_MAX_RECV_SGE;
 344         props->max_sge_rd = 1;
 345         props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
 346         props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
 347                                     c4iw_max_read_depth);
 348         props->max_qp_init_rd_atom = props->max_qp_rd_atom;
 349         props->max_cq = dev->rdev.lldi.vr->qp.size;
 350         props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
 351         props->max_mr = c4iw_num_stags(&dev->rdev);
 352         props->max_pd = T4_MAX_NUM_PD;
 353         props->local_ca_ack_delay = 0;
 354         props->max_fast_reg_page_list_len =
 355                 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl);
 356
 357         return 0;
 358 }
 359
 360 static int c4iw_query_port(struct ib_device *ibdev, u8 port,
 361                            struct ib_port_attr *props)
 362 {
 363         struct c4iw_dev *dev;
 364         struct net_device *netdev;
 365         struct in_device *inetdev;
 366
 367         PDBG("%s ibdev %p\n", __func__, ibdev);
 368
 369         dev = to_c4iw_dev(ibdev);
 370         netdev = dev->rdev.lldi.ports[port-1];
 371
 372         memset(props, 0, sizeof(struct ib_port_attr));
 373         props->max_mtu = IB_MTU_4096;
 374         if (netdev->mtu >= 4096)
 375                 props->active_mtu = IB_MTU_4096;
 376         else if (netdev->mtu >= 2048)
 377                 props->active_mtu = IB_MTU_2048;
 378         else if (netdev->mtu >= 1024)
 379                 props->active_mtu = IB_MTU_1024;
 380         else if (netdev->mtu >= 512)
 381                 props->active_mtu = IB_MTU_512;
 382         else
 383                 props->active_mtu = IB_MTU_256;
 384
 385         if (!netif_carrier_ok(netdev))
 386                 props->state = IB_PORT_DOWN;
 387         else {
 388                 inetdev = in_dev_get(netdev);
 389                 if (inetdev) {
 390                         if (inetdev->ifa_list)
 391                                 props->state = IB_PORT_ACTIVE;
 392                         else
 393                                 props->state = IB_PORT_INIT;
 394                         in_dev_put(inetdev);
 395                 } else
 396                         props->state = IB_PORT_INIT;
 397         }
 398
 399         props->port_cap_flags =
 400             IB_PORT_CM_SUP |
 401             IB_PORT_SNMP_TUNNEL_SUP |
 402             IB_PORT_REINIT_SUP |
 403             IB_PORT_DEVICE_MGMT_SUP |
 404             IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
 405         props->gid_tbl_len = 1;
 406         props->pkey_tbl_len = 1;
 407         props->active_width = 2;
 408         props->active_speed = IB_SPEED_DDR;
 409         props->max_msg_sz = -1;
 410
 411         return 0;
 412 }
 413
 414 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
 415                         char *buf)
 416 {
 417         struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
 418                                                  ibdev.dev);
 419         PDBG("%s dev 0x%p\n", __func__, dev);
 420         return sprintf(buf, "%d\n",
 421                        CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
 422 }
 423
 424 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
 425                         char *buf)
 426 {
 427         struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
 428                                                  ibdev.dev);
 429         struct ethtool_drvinfo info;
 430         struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];
 431
 432         PDBG("%s dev 0x%p\n", __func__, dev);
 433         lldev->ethtool_ops->get_drvinfo(lldev, &info);
 434         return sprintf(buf, "%s\n", info.driver);
 435 }
 436
 437 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
 438                           char *buf)
 439 {
 440         struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
 441                                                  ibdev.dev);
 442         PDBG("%s dev 0x%p\n", __func__, dev);
 443         return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
 444                        c4iw_dev->rdev.lldi.pdev->device);
 445 }
 446
 447 enum counters {
 448         IP4INSEGS,
 449         IP4OUTSEGS,
 450         IP4RETRANSSEGS,
 451         IP4OUTRSTS,
 452         IP6INSEGS,
 453         IP6OUTSEGS,
 454         IP6RETRANSSEGS,
 455         IP6OUTRSTS,
 456         NR_COUNTERS
 457 };
 458
 459 static const char * const names[] = {
 460         [IP4INSEGS] = "ip4InSegs",
 461         [IP4OUTSEGS] = "ip4OutSegs",
 462         [IP4RETRANSSEGS] = "ip4RetransSegs",
 463         [IP4OUTRSTS] = "ip4OutRsts",
 464         [IP6INSEGS] = "ip6InSegs",
 465         [IP6OUTSEGS] = "ip6OutSegs",
 466         [IP6RETRANSSEGS] = "ip6RetransSegs",
 467         [IP6OUTRSTS] = "ip6OutRsts"
 468 };
 469
 470 static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev,
 471                                               u8 port_num)
 472 {
 473         BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS);
 474
 475         if (port_num != 0)
 476                 return NULL;
 477
 478         return rdma_alloc_hw_stats_struct(names, NR_COUNTERS,
 479                                           RDMA_HW_STATS_DEFAULT_LIFESPAN);
 480 }
 481
 482 static int c4iw_get_mib(struct ib_device *ibdev,
 483                         struct rdma_hw_stats *stats,
 484                         u8 port, int index)
 485 {
 486         struct tp_tcp_stats v4, v6;
 487         struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);
 488
 489         cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
 490         stats->value[IP4INSEGS] = v4.tcp_in_segs;
 491         stats->value[IP4OUTSEGS] = v4.tcp_out_segs;
 492         stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs;
 493         stats->value[IP4OUTRSTS] = v4.tcp_out_rsts;
 494         stats->value[IP6INSEGS] = v6.tcp_in_segs;
 495         stats->value[IP6OUTSEGS] = v6.tcp_out_segs;
 496         stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs;
 497         stats->value[IP6OUTRSTS] = v6.tcp_out_rsts;
 498
 499         return stats->num_counters;
 500 }
 501
 502 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
 503 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
 504 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
 505
 506 static struct device_attribute *c4iw_class_attributes[] = {
 507         &dev_attr_hw_rev,
 508         &dev_attr_hca_type,
 509         &dev_attr_board_id,
 510 };
 511
 512 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num,
 513                                struct ib_port_immutable *immutable)
 514 {
 515         struct ib_port_attr attr;
 516         int err;
 517
 518         err = c4iw_query_port(ibdev, port_num, &attr);
 519         if (err)
 520                 return err;
 521
 522         immutable->pkey_tbl_len = attr.pkey_tbl_len;
 523         immutable->gid_tbl_len = attr.gid_tbl_len;
 524         immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
 525
 526         return 0;
 527 }
 528
 529 static void get_dev_fw_str(struct ib_device *dev, char *str,
 530                            size_t str_len)
 531 {
 532         struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
 533                                                  ibdev);
 534         PDBG("%s dev 0x%p\n", __func__, dev);
 535
 536         snprintf(str, str_len, "%u.%u.%u.%u",
 537                  FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
 538                  FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
 539                  FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
 540                  FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
 541 }
 542
 543 int c4iw_register_device(struct c4iw_dev *dev)
 544 {
 545         int ret;
 546         int i;
 547
 548         PDBG("%s c4iw_dev %p\n", __func__, dev);
 549         BUG_ON(!dev->rdev.lldi.ports[0]);
 550         strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX);
 551         memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
 552         memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
 553         dev->ibdev.owner = THIS_MODULE;
 554         dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
 555         if (fastreg_support)
 556                 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
 557         dev->ibdev.local_dma_lkey = 0;
 558         dev->ibdev.uverbs_cmd_mask =
 559             (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
 560             (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
 561             (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
 562             (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
 563             (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
 564             (1ull << IB_USER_VERBS_CMD_REG_MR) |
 565             (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
 566             (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
 567             (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
 568             (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
 569             (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
 570             (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
 571             (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
 572             (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
 573             (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
 574             (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
 575             (1ull << IB_USER_VERBS_CMD_POST_SEND) |
 576             (1ull << IB_USER_VERBS_CMD_POST_RECV);
 577         dev->ibdev.node_type = RDMA_NODE_RNIC;
 578         BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX);
 579         memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
 580         dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
 581         dev->ibdev.num_comp_vectors =  dev->rdev.lldi.nciq;
 582         dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev);
 583         dev->ibdev.query_device = c4iw_query_device;
 584         dev->ibdev.query_port = c4iw_query_port;
 585         dev->ibdev.query_pkey = c4iw_query_pkey;
 586         dev->ibdev.query_gid = c4iw_query_gid;
 587         dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;
 588         dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext;
 589         dev->ibdev.mmap = c4iw_mmap;
 590         dev->ibdev.alloc_pd = c4iw_allocate_pd;
 591         dev->ibdev.dealloc_pd = c4iw_deallocate_pd;
 592         dev->ibdev.create_ah = c4iw_ah_create;
 593         dev->ibdev.destroy_ah = c4iw_ah_destroy;
 594         dev->ibdev.create_qp = c4iw_create_qp;
 595         dev->ibdev.modify_qp = c4iw_ib_modify_qp;
 596         dev->ibdev.query_qp = c4iw_ib_query_qp;
 597         dev->ibdev.destroy_qp = c4iw_destroy_qp;
 598         dev->ibdev.create_cq = c4iw_create_cq;
 599         dev->ibdev.destroy_cq = c4iw_destroy_cq;
 600         dev->ibdev.resize_cq = c4iw_resize_cq;
 601         dev->ibdev.poll_cq = c4iw_poll_cq;
 602         dev->ibdev.get_dma_mr = c4iw_get_dma_mr;
 603         dev->ibdev.reg_user_mr = c4iw_reg_user_mr;
 604         dev->ibdev.dereg_mr = c4iw_dereg_mr;
 605         dev->ibdev.alloc_mw = c4iw_alloc_mw;
 606         dev->ibdev.dealloc_mw = c4iw_dealloc_mw;
 607         dev->ibdev.alloc_mr = c4iw_alloc_mr;
 608         dev->ibdev.map_mr_sg = c4iw_map_mr_sg;
 609         dev->ibdev.attach_mcast = c4iw_multicast_attach;
 610         dev->ibdev.detach_mcast = c4iw_multicast_detach;
 611         dev->ibdev.process_mad = c4iw_process_mad;
 612         dev->ibdev.req_notify_cq = c4iw_arm_cq;
 613         dev->ibdev.post_send = c4iw_post_send;
 614         dev->ibdev.post_recv = c4iw_post_receive;
 615         dev->ibdev.alloc_hw_stats = c4iw_alloc_stats;
 616         dev->ibdev.get_hw_stats = c4iw_get_mib;
 617         dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;
 618         dev->ibdev.get_port_immutable = c4iw_port_immutable;
 619         dev->ibdev.get_dev_fw_str = get_dev_fw_str;
 620         dev->ibdev.drain_sq = c4iw_drain_sq;
 621         dev->ibdev.drain_rq = c4iw_drain_rq;
 622
 623         dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
 624         if (!dev->ibdev.iwcm)
 625                 return -ENOMEM;
 626
 627         dev->ibdev.iwcm->connect = c4iw_connect;
 628         dev->ibdev.iwcm->accept = c4iw_accept_cr;
 629         dev->ibdev.iwcm->reject = c4iw_reject_cr;
 630         dev->ibdev.iwcm->create_listen = c4iw_create_listen;
 631         dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen;
 632         dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref;
 633         dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref;
 634         dev->ibdev.iwcm->get_qp = c4iw_get_qp;
 635         memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name,
 636                sizeof(dev->ibdev.iwcm->ifname));
 637
 638         ret = ib_register_device(&dev->ibdev, NULL);
 639         if (ret)
 640                 goto bail1;
 641
 642         for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) {
 643                 ret = device_create_file(&dev->ibdev.dev,
 644                                          c4iw_class_attributes[i]);
 645                 if (ret)
 646                         goto bail2;
 647         }
 648         return 0;
 649 bail2:
 650         ib_unregister_device(&dev->ibdev);
 651 bail1:
 652         kfree(dev->ibdev.iwcm);
 653         return ret;
 654 }
 655
 656 void c4iw_unregister_device(struct c4iw_dev *dev)
 657 {
 658         int i;
 659
 660         PDBG("%s c4iw_dev %p\n", __func__, dev);
 661         for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i)
 662                 device_remove_file(&dev->ibdev.dev,
 663                                    c4iw_class_attributes[i]);
 664         ib_unregister_device(&dev->ibdev);
 665         kfree(dev->ibdev.iwcm);
 666         return;
 667 }