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 *in_mad,
  86                             struct ib_mad *out_mad)
  87 {
  88         return -ENOSYS;
  89 }
  90
  91 static int c4iw_dealloc_ucontext(struct ib_ucontext *context)
  92 {
  93         struct c4iw_dev *rhp = to_c4iw_dev(context->device);
  94         struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context);
  95         struct c4iw_mm_entry *mm, *tmp;
  96
  97         PDBG("%s context %p\n", __func__, context);
  98         list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry)
  99                 kfree(mm);
 100         c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx);
 101         kfree(ucontext);
 102         return 0;
 103 }
 104
 105 static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev,
 106                                                struct ib_udata *udata)
 107 {
 108         struct c4iw_ucontext *context;
 109         struct c4iw_dev *rhp = to_c4iw_dev(ibdev);
 110         static int warned;
 111         struct c4iw_alloc_ucontext_resp uresp;
 112         int ret = 0;
 113         struct c4iw_mm_entry *mm = NULL;
 114
 115         PDBG("%s ibdev %p\n", __func__, ibdev);
 116         context = kzalloc(sizeof(*context), GFP_KERNEL);
 117         if (!context) {
 118                 ret = -ENOMEM;
 119                 goto err;
 120         }
 121
 122         c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx);
 123         INIT_LIST_HEAD(&context->mmaps);
 124         spin_lock_init(&context->mmap_lock);
 125
 126         if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) {
 127                 if (!warned++)
 128                         pr_err(MOD "Warning - downlevel libcxgb4 (non-fatal), device status page disabled.");
 129                 rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED;
 130         } else {
 131                 mm = kmalloc(sizeof(*mm), GFP_KERNEL);
 132                 if (!mm) {
 133                         ret = -ENOMEM;
 134                         goto err_free;
 135                 }
 136
 137                 uresp.status_page_size = PAGE_SIZE;
 138
 139                 spin_lock(&context->mmap_lock);
 140                 uresp.status_page_key = context->key;
 141                 context->key += PAGE_SIZE;
 142                 spin_unlock(&context->mmap_lock);
 143
 144                 ret = ib_copy_to_udata(udata, &uresp,
 145                                        sizeof(uresp) - sizeof(uresp.reserved));
 146                 if (ret)
 147                         goto err_mm;
 148
 149                 mm->key = uresp.status_page_key;
 150                 mm->addr = virt_to_phys(rhp->rdev.status_page);
 151                 mm->len = PAGE_SIZE;
 152                 insert_mmap(context, mm);
 153         }
 154         return &context->ibucontext;
 155 err_mm:
 156         kfree(mm);
 157 err_free:
 158         kfree(context);
 159 err:
 160         return ERR_PTR(ret);
 161 }
 162
 163 static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 164 {
 165         int len = vma->vm_end - vma->vm_start;
 166         u32 key = vma->vm_pgoff << PAGE_SHIFT;
 167         struct c4iw_rdev *rdev;
 168         int ret = 0;
 169         struct c4iw_mm_entry *mm;
 170         struct c4iw_ucontext *ucontext;
 171         u64 addr;
 172
 173         PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff,
 174              key, len);
 175
 176         if (vma->vm_start & (PAGE_SIZE-1))
 177                 return -EINVAL;
 178
 179         rdev = &(to_c4iw_dev(context->device)->rdev);
 180         ucontext = to_c4iw_ucontext(context);
 181
 182         mm = remove_mmap(ucontext, key, len);
 183         if (!mm)
 184                 return -EINVAL;
 185         addr = mm->addr;
 186         kfree(mm);
 187
 188         if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) &&
 189             (addr < (pci_resource_start(rdev->lldi.pdev, 0) +
 190                     pci_resource_len(rdev->lldi.pdev, 0)))) {
 191
 192                 /*
 193                  * MA_SYNC register...
 194                  */
 195                 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 196                 ret = io_remap_pfn_range(vma, vma->vm_start,
 197                                          addr >> PAGE_SHIFT,
 198                                          len, vma->vm_page_prot);
 199         } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) &&
 200                    (addr < (pci_resource_start(rdev->lldi.pdev, 2) +
 201                     pci_resource_len(rdev->lldi.pdev, 2)))) {
 202
 203                 /*
 204                  * Map user DB or OCQP memory...
 205                  */
 206                 if (addr >= rdev->oc_mw_pa)
 207                         vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot);
 208                 else {
 209                         if (is_t5(rdev->lldi.adapter_type))
 210                                 vma->vm_page_prot =
 211                                         t4_pgprot_wc(vma->vm_page_prot);
 212                         else
 213                                 vma->vm_page_prot =
 214                                         pgprot_noncached(vma->vm_page_prot);
 215                 }
 216                 ret = io_remap_pfn_range(vma, vma->vm_start,
 217                                          addr >> PAGE_SHIFT,
 218                                          len, vma->vm_page_prot);
 219         } else {
 220
 221                 /*
 222                  * Map WQ or CQ contig dma memory...
 223                  */
 224                 ret = remap_pfn_range(vma, vma->vm_start,
 225                                       addr >> PAGE_SHIFT,
 226                                       len, vma->vm_page_prot);
 227         }
 228
 229         return ret;
 230 }
 231
 232 static int c4iw_deallocate_pd(struct ib_pd *pd)
 233 {
 234         struct c4iw_dev *rhp;
 235         struct c4iw_pd *php;
 236
 237         php = to_c4iw_pd(pd);
 238         rhp = php->rhp;
 239         PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid);
 240         c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid);
 241         mutex_lock(&rhp->rdev.stats.lock);
 242         rhp->rdev.stats.pd.cur--;
 243         mutex_unlock(&rhp->rdev.stats.lock);
 244         kfree(php);
 245         return 0;
 246 }
 247
 248 static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev,
 249                                       struct ib_ucontext *context,
 250                                       struct ib_udata *udata)
 251 {
 252         struct c4iw_pd *php;
 253         u32 pdid;
 254         struct c4iw_dev *rhp;
 255
 256         PDBG("%s ibdev %p\n", __func__, ibdev);
 257         rhp = (struct c4iw_dev *) ibdev;
 258         pdid =  c4iw_get_resource(&rhp->rdev.resource.pdid_table);
 259         if (!pdid)
 260                 return ERR_PTR(-EINVAL);
 261         php = kzalloc(sizeof(*php), GFP_KERNEL);
 262         if (!php) {
 263                 c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid);
 264                 return ERR_PTR(-ENOMEM);
 265         }
 266         php->pdid = pdid;
 267         php->rhp = rhp;
 268         if (context) {
 269                 if (ib_copy_to_udata(udata, &php->pdid, sizeof(u32))) {
 270                         c4iw_deallocate_pd(&php->ibpd);
 271                         return ERR_PTR(-EFAULT);
 272                 }
 273         }
 274         mutex_lock(&rhp->rdev.stats.lock);
 275         rhp->rdev.stats.pd.cur++;
 276         if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max)
 277                 rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur;
 278         mutex_unlock(&rhp->rdev.stats.lock);
 279         PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php);
 280         return &php->ibpd;
 281 }
 282
 283 static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
 284                            u16 *pkey)
 285 {
 286         PDBG("%s ibdev %p\n", __func__, ibdev);
 287         *pkey = 0;
 288         return 0;
 289 }
 290
 291 static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index,
 292                           union ib_gid *gid)
 293 {
 294         struct c4iw_dev *dev;
 295
 296         PDBG("%s ibdev %p, port %d, index %d, gid %p\n",
 297                __func__, ibdev, port, index, gid);
 298         dev = to_c4iw_dev(ibdev);
 299         BUG_ON(port == 0);
 300         memset(&(gid->raw[0]), 0, sizeof(gid->raw));
 301         memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6);
 302         return 0;
 303 }
 304
 305 static int c4iw_query_device(struct ib_device *ibdev,
 306                              struct ib_device_attr *props)
 307 {
 308
 309         struct c4iw_dev *dev;
 310         PDBG("%s ibdev %p\n", __func__, ibdev);
 311
 312         dev = to_c4iw_dev(ibdev);
 313         memset(props, 0, sizeof *props);
 314         memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
 315         props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type);
 316         props->fw_ver = dev->rdev.lldi.fw_vers;
 317         props->device_cap_flags = dev->device_cap_flags;
 318         props->page_size_cap = T4_PAGESIZE_MASK;
 319         props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor;
 320         props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device;
 321         props->max_mr_size = T4_MAX_MR_SIZE;
 322         props->max_qp = dev->rdev.lldi.vr->qp.size / 2;
 323         props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth;
 324         props->max_sge = T4_MAX_RECV_SGE;
 325         props->max_sge_rd = 1;
 326         props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter;
 327         props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp,
 328                                     c4iw_max_read_depth);
 329         props->max_qp_init_rd_atom = props->max_qp_rd_atom;
 330         props->max_cq = dev->rdev.lldi.vr->qp.size;
 331         props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth;
 332         props->max_mr = c4iw_num_stags(&dev->rdev);
 333         props->max_pd = T4_MAX_NUM_PD;
 334         props->local_ca_ack_delay = 0;
 335         props->max_fast_reg_page_list_len = t4_max_fr_depth(use_dsgl);
 336
 337         return 0;
 338 }
 339
 340 static int c4iw_query_port(struct ib_device *ibdev, u8 port,
 341                            struct ib_port_attr *props)
 342 {
 343         struct c4iw_dev *dev;
 344         struct net_device *netdev;
 345         struct in_device *inetdev;
 346
 347         PDBG("%s ibdev %p\n", __func__, ibdev);
 348
 349         dev = to_c4iw_dev(ibdev);
 350         netdev = dev->rdev.lldi.ports[port-1];
 351
 352         memset(props, 0, sizeof(struct ib_port_attr));
 353         props->max_mtu = IB_MTU_4096;
 354         if (netdev->mtu >= 4096)
 355                 props->active_mtu = IB_MTU_4096;
 356         else if (netdev->mtu >= 2048)
 357                 props->active_mtu = IB_MTU_2048;
 358         else if (netdev->mtu >= 1024)
 359                 props->active_mtu = IB_MTU_1024;
 360         else if (netdev->mtu >= 512)
 361                 props->active_mtu = IB_MTU_512;
 362         else
 363                 props->active_mtu = IB_MTU_256;
 364
 365         if (!netif_carrier_ok(netdev))
 366                 props->state = IB_PORT_DOWN;
 367         else {
 368                 inetdev = in_dev_get(netdev);
 369                 if (inetdev) {
 370                         if (inetdev->ifa_list)
 371                                 props->state = IB_PORT_ACTIVE;
 372                         else
 373                                 props->state = IB_PORT_INIT;
 374                         in_dev_put(inetdev);
 375                 } else
 376                         props->state = IB_PORT_INIT;
 377         }
 378
 379         props->port_cap_flags =
 380             IB_PORT_CM_SUP |
 381             IB_PORT_SNMP_TUNNEL_SUP |
 382             IB_PORT_REINIT_SUP |
 383             IB_PORT_DEVICE_MGMT_SUP |
 384             IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP;
 385         props->gid_tbl_len = 1;
 386         props->pkey_tbl_len = 1;
 387         props->active_width = 2;
 388         props->active_speed = IB_SPEED_DDR;
 389         props->max_msg_sz = -1;
 390
 391         return 0;
 392 }
 393
 394 static ssize_t show_rev(struct device *dev, struct device_attribute *attr,
 395                         char *buf)
 396 {
 397         struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
 398                                                  ibdev.dev);
 399         PDBG("%s dev 0x%p\n", __func__, dev);
 400         return sprintf(buf, "%d\n",
 401                        CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type));
 402 }
 403
 404 static ssize_t show_fw_ver(struct device *dev, struct device_attribute *attr,
 405                            char *buf)
 406 {
 407         struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
 408                                                  ibdev.dev);
 409         PDBG("%s dev 0x%p\n", __func__, dev);
 410
 411         return sprintf(buf, "%u.%u.%u.%u\n",
 412                         FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers),
 413                         FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers),
 414                         FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers),
 415                         FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
 416 }
 417
 418 static ssize_t show_hca(struct device *dev, struct device_attribute *attr,
 419                         char *buf)
 420 {
 421         struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
 422                                                  ibdev.dev);
 423         struct ethtool_drvinfo info;
 424         struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0];
 425
 426         PDBG("%s dev 0x%p\n", __func__, dev);
 427         lldev->ethtool_ops->get_drvinfo(lldev, &info);
 428         return sprintf(buf, "%s\n", info.driver);
 429 }
 430
 431 static ssize_t show_board(struct device *dev, struct device_attribute *attr,
 432                           char *buf)
 433 {
 434         struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev,
 435                                                  ibdev.dev);
 436         PDBG("%s dev 0x%p\n", __func__, dev);
 437         return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor,
 438                        c4iw_dev->rdev.lldi.pdev->device);
 439 }
 440
 441 static int c4iw_get_mib(struct ib_device *ibdev,
 442                         union rdma_protocol_stats *stats)
 443 {
 444         struct tp_tcp_stats v4, v6;
 445         struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev);
 446
 447         cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6);
 448         memset(stats, 0, sizeof *stats);
 449         stats->iw.tcpInSegs = v4.tcpInSegs + v6.tcpInSegs;
 450         stats->iw.tcpOutSegs = v4.tcpOutSegs + v6.tcpOutSegs;
 451         stats->iw.tcpRetransSegs = v4.tcpRetransSegs + v6.tcpRetransSegs;
 452         stats->iw.tcpOutRsts = v4.tcpOutRsts + v6.tcpOutSegs;
 453
 454         return 0;
 455 }
 456
 457 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL);
 458 static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
 459 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL);
 460 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL);
 461
 462 static struct device_attribute *c4iw_class_attributes[] = {
 463         &dev_attr_hw_rev,
 464         &dev_attr_fw_ver,
 465         &dev_attr_hca_type,
 466         &dev_attr_board_id,
 467 };
 468
 469 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num,
 470                                struct ib_port_immutable *immutable)
 471 {
 472         struct ib_port_attr attr;
 473         int err;
 474
 475         err = c4iw_query_port(ibdev, port_num, &attr);
 476         if (err)
 477                 return err;
 478
 479         immutable->pkey_tbl_len = attr.pkey_tbl_len;
 480         immutable->gid_tbl_len = attr.gid_tbl_len;
 481         immutable->core_cap_flags = RDMA_CORE_PORT_IWARP;
 482
 483         return 0;
 484 }
 485
 486 int c4iw_register_device(struct c4iw_dev *dev)
 487 {
 488         int ret;
 489         int i;
 490
 491         PDBG("%s c4iw_dev %p\n", __func__, dev);
 492         BUG_ON(!dev->rdev.lldi.ports[0]);
 493         strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX);
 494         memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
 495         memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6);
 496         dev->ibdev.owner = THIS_MODULE;
 497         dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW;
 498         if (fastreg_support)
 499                 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS;
 500         dev->ibdev.local_dma_lkey = 0;
 501         dev->ibdev.uverbs_cmd_mask =
 502             (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) |
 503             (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) |
 504             (1ull << IB_USER_VERBS_CMD_QUERY_PORT) |
 505             (1ull << IB_USER_VERBS_CMD_ALLOC_PD) |
 506             (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) |
 507             (1ull << IB_USER_VERBS_CMD_REG_MR) |
 508             (1ull << IB_USER_VERBS_CMD_DEREG_MR) |
 509             (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) |
 510             (1ull << IB_USER_VERBS_CMD_CREATE_CQ) |
 511             (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) |
 512             (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) |
 513             (1ull << IB_USER_VERBS_CMD_CREATE_QP) |
 514             (1ull << IB_USER_VERBS_CMD_MODIFY_QP) |
 515             (1ull << IB_USER_VERBS_CMD_QUERY_QP) |
 516             (1ull << IB_USER_VERBS_CMD_POLL_CQ) |
 517             (1ull << IB_USER_VERBS_CMD_DESTROY_QP) |
 518             (1ull << IB_USER_VERBS_CMD_POST_SEND) |
 519             (1ull << IB_USER_VERBS_CMD_POST_RECV);
 520         dev->ibdev.node_type = RDMA_NODE_RNIC;
 521         memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC));
 522         dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports;
 523         dev->ibdev.num_comp_vectors =  dev->rdev.lldi.nciq;
 524         dev->ibdev.dma_device = &(dev->rdev.lldi.pdev->dev);
 525         dev->ibdev.query_device = c4iw_query_device;
 526         dev->ibdev.query_port = c4iw_query_port;
 527         dev->ibdev.query_pkey = c4iw_query_pkey;
 528         dev->ibdev.query_gid = c4iw_query_gid;
 529         dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext;
 530         dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext;
 531         dev->ibdev.mmap = c4iw_mmap;
 532         dev->ibdev.alloc_pd = c4iw_allocate_pd;
 533         dev->ibdev.dealloc_pd = c4iw_deallocate_pd;
 534         dev->ibdev.create_ah = c4iw_ah_create;
 535         dev->ibdev.destroy_ah = c4iw_ah_destroy;
 536         dev->ibdev.create_qp = c4iw_create_qp;
 537         dev->ibdev.modify_qp = c4iw_ib_modify_qp;
 538         dev->ibdev.query_qp = c4iw_ib_query_qp;
 539         dev->ibdev.destroy_qp = c4iw_destroy_qp;
 540         dev->ibdev.create_cq = c4iw_create_cq;
 541         dev->ibdev.destroy_cq = c4iw_destroy_cq;
 542         dev->ibdev.resize_cq = c4iw_resize_cq;
 543         dev->ibdev.poll_cq = c4iw_poll_cq;
 544         dev->ibdev.get_dma_mr = c4iw_get_dma_mr;
 545         dev->ibdev.reg_phys_mr = c4iw_register_phys_mem;
 546         dev->ibdev.rereg_phys_mr = c4iw_reregister_phys_mem;
 547         dev->ibdev.reg_user_mr = c4iw_reg_user_mr;
 548         dev->ibdev.dereg_mr = c4iw_dereg_mr;
 549         dev->ibdev.alloc_mw = c4iw_alloc_mw;
 550         dev->ibdev.bind_mw = c4iw_bind_mw;
 551         dev->ibdev.dealloc_mw = c4iw_dealloc_mw;
 552         dev->ibdev.alloc_fast_reg_mr = c4iw_alloc_fast_reg_mr;
 553         dev->ibdev.alloc_fast_reg_page_list = c4iw_alloc_fastreg_pbl;
 554         dev->ibdev.free_fast_reg_page_list = c4iw_free_fastreg_pbl;
 555         dev->ibdev.attach_mcast = c4iw_multicast_attach;
 556         dev->ibdev.detach_mcast = c4iw_multicast_detach;
 557         dev->ibdev.process_mad = c4iw_process_mad;
 558         dev->ibdev.req_notify_cq = c4iw_arm_cq;
 559         dev->ibdev.post_send = c4iw_post_send;
 560         dev->ibdev.post_recv = c4iw_post_receive;
 561         dev->ibdev.get_protocol_stats = c4iw_get_mib;
 562         dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION;
 563         dev->ibdev.get_port_immutable = c4iw_port_immutable;
 564
 565         dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL);
 566         if (!dev->ibdev.iwcm)
 567                 return -ENOMEM;
 568
 569         dev->ibdev.iwcm->connect = c4iw_connect;
 570         dev->ibdev.iwcm->accept = c4iw_accept_cr;
 571         dev->ibdev.iwcm->reject = c4iw_reject_cr;
 572         dev->ibdev.iwcm->create_listen = c4iw_create_listen;
 573         dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen;
 574         dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref;
 575         dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref;
 576         dev->ibdev.iwcm->get_qp = c4iw_get_qp;
 577
 578         ret = ib_register_device(&dev->ibdev, NULL);
 579         if (ret)
 580                 goto bail1;
 581
 582         for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) {
 583                 ret = device_create_file(&dev->ibdev.dev,
 584                                          c4iw_class_attributes[i]);
 585                 if (ret)
 586                         goto bail2;
 587         }
 588         return 0;
 589 bail2:
 590         ib_unregister_device(&dev->ibdev);
 591 bail1:
 592         kfree(dev->ibdev.iwcm);
 593         return ret;
 594 }
 595
 596 void c4iw_unregister_device(struct c4iw_dev *dev)
 597 {
 598         int i;
 599
 600         PDBG("%s c4iw_dev %p\n", __func__, dev);
 601         for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i)
 602                 device_remove_file(&dev->ibdev.dev,
 603                                    c4iw_class_attributes[i]);
 604         ib_unregister_device(&dev->ibdev);
 605         kfree(dev->ibdev.iwcm);
 606         return;
 607 }