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 void c4iw_dealloc_ucontext(struct ib_ucontext *context) 62 { 63 struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context); 64 struct c4iw_dev *rhp; 65 struct c4iw_mm_entry *mm, *tmp; 66 67 pr_debug("context %p\n", context); 68 rhp = to_c4iw_dev(ucontext->ibucontext.device); 69 70 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) 71 kfree(mm); 72 c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx); 73 } 74 75 static int c4iw_alloc_ucontext(struct ib_ucontext *ucontext, 76 struct ib_udata *udata) 77 { 78 struct ib_device *ibdev = ucontext->device; 79 struct c4iw_ucontext *context = to_c4iw_ucontext(ucontext); 80 struct c4iw_dev *rhp = to_c4iw_dev(ibdev); 81 struct c4iw_alloc_ucontext_resp uresp; 82 int ret = 0; 83 struct c4iw_mm_entry *mm = NULL; 84 85 pr_debug("ibdev %p\n", ibdev); 86 c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx); 87 INIT_LIST_HEAD(&context->mmaps); 88 spin_lock_init(&context->mmap_lock); 89 90 if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) { 91 pr_err_once("Warning - downlevel libcxgb4 (non-fatal), device status page disabled\n"); 92 rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED; 93 } else { 94 mm = kmalloc(sizeof(*mm), GFP_KERNEL); 95 if (!mm) { 96 ret = -ENOMEM; 97 goto err; 98 } 99 100 uresp.status_page_size = PAGE_SIZE; 101 102 spin_lock(&context->mmap_lock); 103 uresp.status_page_key = context->key; 104 context->key += PAGE_SIZE; 105 spin_unlock(&context->mmap_lock); 106 107 ret = ib_copy_to_udata(udata, &uresp, 108 sizeof(uresp) - sizeof(uresp.reserved)); 109 if (ret) 110 goto err_mm; 111 112 mm->key = uresp.status_page_key; 113 mm->addr = virt_to_phys(rhp->rdev.status_page); 114 mm->len = PAGE_SIZE; 115 insert_mmap(context, mm); 116 } 117 return 0; 118 err_mm: 119 kfree(mm); 120 err: 121 return ret; 122 } 123 124 static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) 125 { 126 int len = vma->vm_end - vma->vm_start; 127 u32 key = vma->vm_pgoff << PAGE_SHIFT; 128 struct c4iw_rdev *rdev; 129 int ret = 0; 130 struct c4iw_mm_entry *mm; 131 struct c4iw_ucontext *ucontext; 132 u64 addr; 133 134 pr_debug("pgoff 0x%lx key 0x%x len %d\n", vma->vm_pgoff, 135 key, len); 136 137 if (vma->vm_start & (PAGE_SIZE-1)) 138 return -EINVAL; 139 140 rdev = &(to_c4iw_dev(context->device)->rdev); 141 ucontext = to_c4iw_ucontext(context); 142 143 mm = remove_mmap(ucontext, key, len); 144 if (!mm) 145 return -EINVAL; 146 addr = mm->addr; 147 kfree(mm); 148 149 if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) && 150 (addr < (pci_resource_start(rdev->lldi.pdev, 0) + 151 pci_resource_len(rdev->lldi.pdev, 0)))) { 152 153 /* 154 * MA_SYNC register... 155 */ 156 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 157 ret = io_remap_pfn_range(vma, vma->vm_start, 158 addr >> PAGE_SHIFT, 159 len, vma->vm_page_prot); 160 } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) && 161 (addr < (pci_resource_start(rdev->lldi.pdev, 2) + 162 pci_resource_len(rdev->lldi.pdev, 2)))) { 163 164 /* 165 * Map user DB or OCQP memory... 166 */ 167 if (addr >= rdev->oc_mw_pa) 168 vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot); 169 else { 170 if (!is_t4(rdev->lldi.adapter_type)) 171 vma->vm_page_prot = 172 t4_pgprot_wc(vma->vm_page_prot); 173 else 174 vma->vm_page_prot = 175 pgprot_noncached(vma->vm_page_prot); 176 } 177 ret = io_remap_pfn_range(vma, vma->vm_start, 178 addr >> PAGE_SHIFT, 179 len, vma->vm_page_prot); 180 } else { 181 182 /* 183 * Map WQ or CQ contig dma memory... 184 */ 185 ret = remap_pfn_range(vma, vma->vm_start, 186 addr >> PAGE_SHIFT, 187 len, vma->vm_page_prot); 188 } 189 190 return ret; 191 } 192 193 static int c4iw_deallocate_pd(struct ib_pd *pd, struct ib_udata *udata) 194 { 195 struct c4iw_dev *rhp; 196 struct c4iw_pd *php; 197 198 php = to_c4iw_pd(pd); 199 rhp = php->rhp; 200 pr_debug("ibpd %p pdid 0x%x\n", pd, php->pdid); 201 c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid); 202 mutex_lock(&rhp->rdev.stats.lock); 203 rhp->rdev.stats.pd.cur--; 204 mutex_unlock(&rhp->rdev.stats.lock); 205 return 0; 206 } 207 208 static int c4iw_allocate_pd(struct ib_pd *pd, struct ib_udata *udata) 209 { 210 struct c4iw_pd *php = to_c4iw_pd(pd); 211 struct ib_device *ibdev = pd->device; 212 u32 pdid; 213 struct c4iw_dev *rhp; 214 215 pr_debug("ibdev %p\n", ibdev); 216 rhp = (struct c4iw_dev *) ibdev; 217 pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_table); 218 if (!pdid) 219 return -EINVAL; 220 221 php->pdid = pdid; 222 php->rhp = rhp; 223 if (udata) { 224 struct c4iw_alloc_pd_resp uresp = {.pdid = php->pdid}; 225 226 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) { 227 c4iw_deallocate_pd(&php->ibpd, udata); 228 return -EFAULT; 229 } 230 } 231 mutex_lock(&rhp->rdev.stats.lock); 232 rhp->rdev.stats.pd.cur++; 233 if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max) 234 rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur; 235 mutex_unlock(&rhp->rdev.stats.lock); 236 pr_debug("pdid 0x%0x ptr 0x%p\n", pdid, php); 237 return 0; 238 } 239 240 static int c4iw_query_gid(struct ib_device *ibdev, u32 port, int index, 241 union ib_gid *gid) 242 { 243 struct c4iw_dev *dev; 244 245 pr_debug("ibdev %p, port %u, index %d, gid %p\n", 246 ibdev, port, index, gid); 247 if (!port) 248 return -EINVAL; 249 dev = to_c4iw_dev(ibdev); 250 memset(&(gid->raw[0]), 0, sizeof(gid->raw)); 251 memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6); 252 return 0; 253 } 254 255 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props, 256 struct ib_udata *uhw) 257 { 258 259 struct c4iw_dev *dev; 260 261 pr_debug("ibdev %p\n", ibdev); 262 263 if (uhw->inlen || uhw->outlen) 264 return -EINVAL; 265 266 dev = to_c4iw_dev(ibdev); 267 memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 268 props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type); 269 props->fw_ver = dev->rdev.lldi.fw_vers; 270 props->device_cap_flags = dev->device_cap_flags; 271 props->page_size_cap = T4_PAGESIZE_MASK; 272 props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor; 273 props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device; 274 props->max_mr_size = T4_MAX_MR_SIZE; 275 props->max_qp = dev->rdev.lldi.vr->qp.size / 2; 276 props->max_srq = dev->rdev.lldi.vr->srq.size; 277 props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth; 278 props->max_srq_wr = dev->rdev.hw_queue.t4_max_qp_depth; 279 props->max_send_sge = min(T4_MAX_SEND_SGE, T4_MAX_WRITE_SGE); 280 props->max_recv_sge = T4_MAX_RECV_SGE; 281 props->max_srq_sge = T4_MAX_RECV_SGE; 282 props->max_sge_rd = 1; 283 props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter; 284 props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp, 285 c4iw_max_read_depth); 286 props->max_qp_init_rd_atom = props->max_qp_rd_atom; 287 props->max_cq = dev->rdev.lldi.vr->qp.size; 288 props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth; 289 props->max_mr = c4iw_num_stags(&dev->rdev); 290 props->max_pd = T4_MAX_NUM_PD; 291 props->local_ca_ack_delay = 0; 292 props->max_fast_reg_page_list_len = 293 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl); 294 295 return 0; 296 } 297 298 static int c4iw_query_port(struct ib_device *ibdev, u32 port, 299 struct ib_port_attr *props) 300 { 301 int ret = 0; 302 pr_debug("ibdev %p\n", ibdev); 303 ret = ib_get_eth_speed(ibdev, port, &props->active_speed, 304 &props->active_width); 305 306 props->port_cap_flags = 307 IB_PORT_CM_SUP | 308 IB_PORT_SNMP_TUNNEL_SUP | 309 IB_PORT_REINIT_SUP | 310 IB_PORT_DEVICE_MGMT_SUP | 311 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; 312 props->gid_tbl_len = 1; 313 props->max_msg_sz = -1; 314 315 return ret; 316 } 317 318 static ssize_t hw_rev_show(struct device *dev, 319 struct device_attribute *attr, char *buf) 320 { 321 struct c4iw_dev *c4iw_dev = 322 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev); 323 324 pr_debug("dev 0x%p\n", dev); 325 return sysfs_emit( 326 buf, "%d\n", 327 CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type)); 328 } 329 static DEVICE_ATTR_RO(hw_rev); 330 331 static ssize_t hca_type_show(struct device *dev, 332 struct device_attribute *attr, char *buf) 333 { 334 struct c4iw_dev *c4iw_dev = 335 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev); 336 struct ethtool_drvinfo info; 337 struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0]; 338 339 pr_debug("dev 0x%p\n", dev); 340 lldev->ethtool_ops->get_drvinfo(lldev, &info); 341 return sysfs_emit(buf, "%s\n", info.driver); 342 } 343 static DEVICE_ATTR_RO(hca_type); 344 345 static ssize_t board_id_show(struct device *dev, struct device_attribute *attr, 346 char *buf) 347 { 348 struct c4iw_dev *c4iw_dev = 349 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev); 350 351 pr_debug("dev 0x%p\n", dev); 352 return sysfs_emit(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor, 353 c4iw_dev->rdev.lldi.pdev->device); 354 } 355 static DEVICE_ATTR_RO(board_id); 356 357 enum counters { 358 IP4INSEGS, 359 IP4OUTSEGS, 360 IP4RETRANSSEGS, 361 IP4OUTRSTS, 362 IP6INSEGS, 363 IP6OUTSEGS, 364 IP6RETRANSSEGS, 365 IP6OUTRSTS, 366 NR_COUNTERS 367 }; 368 369 static const char * const names[] = { 370 [IP4INSEGS] = "ip4InSegs", 371 [IP4OUTSEGS] = "ip4OutSegs", 372 [IP4RETRANSSEGS] = "ip4RetransSegs", 373 [IP4OUTRSTS] = "ip4OutRsts", 374 [IP6INSEGS] = "ip6InSegs", 375 [IP6OUTSEGS] = "ip6OutSegs", 376 [IP6RETRANSSEGS] = "ip6RetransSegs", 377 [IP6OUTRSTS] = "ip6OutRsts" 378 }; 379 380 static struct rdma_hw_stats *c4iw_alloc_device_stats(struct ib_device *ibdev) 381 { 382 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS); 383 384 /* FIXME: these look like port stats */ 385 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS, 386 RDMA_HW_STATS_DEFAULT_LIFESPAN); 387 } 388 389 static int c4iw_get_mib(struct ib_device *ibdev, 390 struct rdma_hw_stats *stats, 391 u32 port, int index) 392 { 393 struct tp_tcp_stats v4, v6; 394 struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev); 395 396 cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6); 397 stats->value[IP4INSEGS] = v4.tcp_in_segs; 398 stats->value[IP4OUTSEGS] = v4.tcp_out_segs; 399 stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs; 400 stats->value[IP4OUTRSTS] = v4.tcp_out_rsts; 401 stats->value[IP6INSEGS] = v6.tcp_in_segs; 402 stats->value[IP6OUTSEGS] = v6.tcp_out_segs; 403 stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs; 404 stats->value[IP6OUTRSTS] = v6.tcp_out_rsts; 405 406 return stats->num_counters; 407 } 408 409 static struct attribute *c4iw_class_attributes[] = { 410 &dev_attr_hw_rev.attr, 411 &dev_attr_hca_type.attr, 412 &dev_attr_board_id.attr, 413 NULL 414 }; 415 416 static const struct attribute_group c4iw_attr_group = { 417 .attrs = c4iw_class_attributes, 418 }; 419 420 static int c4iw_port_immutable(struct ib_device *ibdev, u32 port_num, 421 struct ib_port_immutable *immutable) 422 { 423 struct ib_port_attr attr; 424 int err; 425 426 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; 427 428 err = ib_query_port(ibdev, port_num, &attr); 429 if (err) 430 return err; 431 432 immutable->gid_tbl_len = attr.gid_tbl_len; 433 434 return 0; 435 } 436 437 static void get_dev_fw_str(struct ib_device *dev, char *str) 438 { 439 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 440 ibdev); 441 pr_debug("dev 0x%p\n", dev); 442 443 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u", 444 FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers), 445 FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers), 446 FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers), 447 FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers)); 448 } 449 450 static const struct ib_device_ops c4iw_dev_ops = { 451 .owner = THIS_MODULE, 452 .driver_id = RDMA_DRIVER_CXGB4, 453 .uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION, 454 455 .alloc_hw_device_stats = c4iw_alloc_device_stats, 456 .alloc_mr = c4iw_alloc_mr, 457 .alloc_pd = c4iw_allocate_pd, 458 .alloc_ucontext = c4iw_alloc_ucontext, 459 .create_cq = c4iw_create_cq, 460 .create_qp = c4iw_create_qp, 461 .create_srq = c4iw_create_srq, 462 .dealloc_pd = c4iw_deallocate_pd, 463 .dealloc_ucontext = c4iw_dealloc_ucontext, 464 .dereg_mr = c4iw_dereg_mr, 465 .destroy_cq = c4iw_destroy_cq, 466 .destroy_qp = c4iw_destroy_qp, 467 .destroy_srq = c4iw_destroy_srq, 468 .device_group = &c4iw_attr_group, 469 .fill_res_cq_entry = c4iw_fill_res_cq_entry, 470 .fill_res_cm_id_entry = c4iw_fill_res_cm_id_entry, 471 .fill_res_mr_entry = c4iw_fill_res_mr_entry, 472 .get_dev_fw_str = get_dev_fw_str, 473 .get_dma_mr = c4iw_get_dma_mr, 474 .get_hw_stats = c4iw_get_mib, 475 .get_port_immutable = c4iw_port_immutable, 476 .iw_accept = c4iw_accept_cr, 477 .iw_add_ref = c4iw_qp_add_ref, 478 .iw_connect = c4iw_connect, 479 .iw_create_listen = c4iw_create_listen, 480 .iw_destroy_listen = c4iw_destroy_listen, 481 .iw_get_qp = c4iw_get_qp, 482 .iw_reject = c4iw_reject_cr, 483 .iw_rem_ref = c4iw_qp_rem_ref, 484 .map_mr_sg = c4iw_map_mr_sg, 485 .mmap = c4iw_mmap, 486 .modify_qp = c4iw_ib_modify_qp, 487 .modify_srq = c4iw_modify_srq, 488 .poll_cq = c4iw_poll_cq, 489 .post_recv = c4iw_post_receive, 490 .post_send = c4iw_post_send, 491 .post_srq_recv = c4iw_post_srq_recv, 492 .query_device = c4iw_query_device, 493 .query_gid = c4iw_query_gid, 494 .query_port = c4iw_query_port, 495 .query_qp = c4iw_ib_query_qp, 496 .reg_user_mr = c4iw_reg_user_mr, 497 .req_notify_cq = c4iw_arm_cq, 498 499 INIT_RDMA_OBJ_SIZE(ib_cq, c4iw_cq, ibcq), 500 INIT_RDMA_OBJ_SIZE(ib_mw, c4iw_mw, ibmw), 501 INIT_RDMA_OBJ_SIZE(ib_pd, c4iw_pd, ibpd), 502 INIT_RDMA_OBJ_SIZE(ib_srq, c4iw_srq, ibsrq), 503 INIT_RDMA_OBJ_SIZE(ib_ucontext, c4iw_ucontext, ibucontext), 504 }; 505 506 static int set_netdevs(struct ib_device *ib_dev, struct c4iw_rdev *rdev) 507 { 508 int ret; 509 int i; 510 511 for (i = 0; i < rdev->lldi.nports; i++) { 512 ret = ib_device_set_netdev(ib_dev, rdev->lldi.ports[i], 513 i + 1); 514 if (ret) 515 return ret; 516 } 517 return 0; 518 } 519 520 void c4iw_register_device(struct work_struct *work) 521 { 522 int ret; 523 struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work); 524 struct c4iw_dev *dev = ctx->dev; 525 526 pr_debug("c4iw_dev %p\n", dev); 527 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); 528 memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 529 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW; 530 if (fastreg_support) 531 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; 532 dev->ibdev.local_dma_lkey = 0; 533 dev->ibdev.node_type = RDMA_NODE_RNIC; 534 BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX); 535 memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC)); 536 dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports; 537 dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq; 538 dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev; 539 540 memcpy(dev->ibdev.iw_ifname, dev->rdev.lldi.ports[0]->name, 541 sizeof(dev->ibdev.iw_ifname)); 542 543 ib_set_device_ops(&dev->ibdev, &c4iw_dev_ops); 544 ret = set_netdevs(&dev->ibdev, &dev->rdev); 545 if (ret) 546 goto err_dealloc_ctx; 547 dma_set_max_seg_size(&dev->rdev.lldi.pdev->dev, UINT_MAX); 548 ret = ib_register_device(&dev->ibdev, "cxgb4_%d", 549 &dev->rdev.lldi.pdev->dev); 550 if (ret) 551 goto err_dealloc_ctx; 552 return; 553 554 err_dealloc_ctx: 555 pr_err("%s - Failed registering iwarp device: %d\n", 556 pci_name(ctx->lldi.pdev), ret); 557 c4iw_dealloc(ctx); 558 return; 559 } 560 561 void c4iw_unregister_device(struct c4iw_dev *dev) 562 { 563 pr_debug("c4iw_dev %p\n", dev); 564 ib_unregister_device(&dev->ibdev); 565 return; 566 } 567