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 rdma_ah_attr *ah_attr, 63 struct ib_udata *udata) 64 65 { 66 return ERR_PTR(-ENOSYS); 67 } 68 69 static int c4iw_ah_destroy(struct ib_ah *ah) 70 { 71 return -ENOSYS; 72 } 73 74 static int c4iw_multicast_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 75 { 76 return -ENOSYS; 77 } 78 79 static int c4iw_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 80 { 81 return -ENOSYS; 82 } 83 84 static int c4iw_process_mad(struct ib_device *ibdev, int mad_flags, 85 u8 port_num, const struct ib_wc *in_wc, 86 const struct ib_grh *in_grh, 87 const struct ib_mad_hdr *in_mad, 88 size_t in_mad_size, 89 struct ib_mad_hdr *out_mad, 90 size_t *out_mad_size, 91 u16 *out_mad_pkey_index) 92 { 93 return -ENOSYS; 94 } 95 96 void _c4iw_free_ucontext(struct kref *kref) 97 { 98 struct c4iw_ucontext *ucontext; 99 struct c4iw_dev *rhp; 100 struct c4iw_mm_entry *mm, *tmp; 101 102 ucontext = container_of(kref, struct c4iw_ucontext, kref); 103 rhp = to_c4iw_dev(ucontext->ibucontext.device); 104 105 pr_debug("%s ucontext %p\n", __func__, ucontext); 106 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) 107 kfree(mm); 108 c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx); 109 kfree(ucontext); 110 } 111 112 static int c4iw_dealloc_ucontext(struct ib_ucontext *context) 113 { 114 struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context); 115 116 pr_debug("%s context %p\n", __func__, context); 117 c4iw_put_ucontext(ucontext); 118 return 0; 119 } 120 121 static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev, 122 struct ib_udata *udata) 123 { 124 struct c4iw_ucontext *context; 125 struct c4iw_dev *rhp = to_c4iw_dev(ibdev); 126 struct c4iw_alloc_ucontext_resp uresp; 127 int ret = 0; 128 struct c4iw_mm_entry *mm = NULL; 129 130 pr_debug("%s ibdev %p\n", __func__, ibdev); 131 context = kzalloc(sizeof(*context), GFP_KERNEL); 132 if (!context) { 133 ret = -ENOMEM; 134 goto err; 135 } 136 137 c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx); 138 INIT_LIST_HEAD(&context->mmaps); 139 spin_lock_init(&context->mmap_lock); 140 kref_init(&context->kref); 141 142 if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) { 143 pr_err_once("Warning - downlevel libcxgb4 (non-fatal), device status page disabled\n"); 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 pr_debug("%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 pr_debug("%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 pr_debug("%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 pr_debug("%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 pr_debug("%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 pr_debug("%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 pr_debug("%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 pr_debug("%s ibdev %p\n", __func__, ibdev); 368 369 dev = to_c4iw_dev(ibdev); 370 netdev = dev->rdev.lldi.ports[port-1]; 371 /* props being zeroed by the caller, avoid zeroing it here */ 372 props->max_mtu = IB_MTU_4096; 373 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu); 374 375 if (!netif_carrier_ok(netdev)) 376 props->state = IB_PORT_DOWN; 377 else { 378 inetdev = in_dev_get(netdev); 379 if (inetdev) { 380 if (inetdev->ifa_list) 381 props->state = IB_PORT_ACTIVE; 382 else 383 props->state = IB_PORT_INIT; 384 in_dev_put(inetdev); 385 } else 386 props->state = IB_PORT_INIT; 387 } 388 389 props->port_cap_flags = 390 IB_PORT_CM_SUP | 391 IB_PORT_SNMP_TUNNEL_SUP | 392 IB_PORT_REINIT_SUP | 393 IB_PORT_DEVICE_MGMT_SUP | 394 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; 395 props->gid_tbl_len = 1; 396 props->pkey_tbl_len = 1; 397 props->active_width = 2; 398 props->active_speed = IB_SPEED_DDR; 399 props->max_msg_sz = -1; 400 401 return 0; 402 } 403 404 static ssize_t show_rev(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 pr_debug("%s dev 0x%p\n", __func__, dev); 410 return sprintf(buf, "%d\n", 411 CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type)); 412 } 413 414 static ssize_t show_hca(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 struct ethtool_drvinfo info; 420 struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0]; 421 422 pr_debug("%s dev 0x%p\n", __func__, dev); 423 lldev->ethtool_ops->get_drvinfo(lldev, &info); 424 return sprintf(buf, "%s\n", info.driver); 425 } 426 427 static ssize_t show_board(struct device *dev, struct device_attribute *attr, 428 char *buf) 429 { 430 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 431 ibdev.dev); 432 pr_debug("%s dev 0x%p\n", __func__, dev); 433 return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor, 434 c4iw_dev->rdev.lldi.pdev->device); 435 } 436 437 enum counters { 438 IP4INSEGS, 439 IP4OUTSEGS, 440 IP4RETRANSSEGS, 441 IP4OUTRSTS, 442 IP6INSEGS, 443 IP6OUTSEGS, 444 IP6RETRANSSEGS, 445 IP6OUTRSTS, 446 NR_COUNTERS 447 }; 448 449 static const char * const names[] = { 450 [IP4INSEGS] = "ip4InSegs", 451 [IP4OUTSEGS] = "ip4OutSegs", 452 [IP4RETRANSSEGS] = "ip4RetransSegs", 453 [IP4OUTRSTS] = "ip4OutRsts", 454 [IP6INSEGS] = "ip6InSegs", 455 [IP6OUTSEGS] = "ip6OutSegs", 456 [IP6RETRANSSEGS] = "ip6RetransSegs", 457 [IP6OUTRSTS] = "ip6OutRsts" 458 }; 459 460 static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev, 461 u8 port_num) 462 { 463 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS); 464 465 if (port_num != 0) 466 return NULL; 467 468 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS, 469 RDMA_HW_STATS_DEFAULT_LIFESPAN); 470 } 471 472 static int c4iw_get_mib(struct ib_device *ibdev, 473 struct rdma_hw_stats *stats, 474 u8 port, int index) 475 { 476 struct tp_tcp_stats v4, v6; 477 struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev); 478 479 cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6); 480 stats->value[IP4INSEGS] = v4.tcp_in_segs; 481 stats->value[IP4OUTSEGS] = v4.tcp_out_segs; 482 stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs; 483 stats->value[IP4OUTRSTS] = v4.tcp_out_rsts; 484 stats->value[IP6INSEGS] = v6.tcp_in_segs; 485 stats->value[IP6OUTSEGS] = v6.tcp_out_segs; 486 stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs; 487 stats->value[IP6OUTRSTS] = v6.tcp_out_rsts; 488 489 return stats->num_counters; 490 } 491 492 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 493 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 494 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 495 496 static struct device_attribute *c4iw_class_attributes[] = { 497 &dev_attr_hw_rev, 498 &dev_attr_hca_type, 499 &dev_attr_board_id, 500 }; 501 502 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num, 503 struct ib_port_immutable *immutable) 504 { 505 struct ib_port_attr attr; 506 int err; 507 508 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; 509 510 err = ib_query_port(ibdev, port_num, &attr); 511 if (err) 512 return err; 513 514 immutable->pkey_tbl_len = attr.pkey_tbl_len; 515 immutable->gid_tbl_len = attr.gid_tbl_len; 516 517 return 0; 518 } 519 520 static void get_dev_fw_str(struct ib_device *dev, char *str) 521 { 522 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 523 ibdev); 524 pr_debug("%s dev 0x%p\n", __func__, dev); 525 526 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u", 527 FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers), 528 FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers), 529 FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers), 530 FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers)); 531 } 532 533 int c4iw_register_device(struct c4iw_dev *dev) 534 { 535 int ret; 536 int i; 537 538 pr_debug("%s c4iw_dev %p\n", __func__, dev); 539 BUG_ON(!dev->rdev.lldi.ports[0]); 540 strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX); 541 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); 542 memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 543 dev->ibdev.owner = THIS_MODULE; 544 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW; 545 if (fastreg_support) 546 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; 547 dev->ibdev.local_dma_lkey = 0; 548 dev->ibdev.uverbs_cmd_mask = 549 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 550 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 551 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 552 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 553 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 554 (1ull << IB_USER_VERBS_CMD_REG_MR) | 555 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 556 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 557 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 558 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 559 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | 560 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 561 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 562 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 563 (1ull << IB_USER_VERBS_CMD_POLL_CQ) | 564 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 565 (1ull << IB_USER_VERBS_CMD_POST_SEND) | 566 (1ull << IB_USER_VERBS_CMD_POST_RECV); 567 dev->ibdev.node_type = RDMA_NODE_RNIC; 568 BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX); 569 memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC)); 570 dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports; 571 dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq; 572 dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev; 573 dev->ibdev.query_device = c4iw_query_device; 574 dev->ibdev.query_port = c4iw_query_port; 575 dev->ibdev.query_pkey = c4iw_query_pkey; 576 dev->ibdev.query_gid = c4iw_query_gid; 577 dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext; 578 dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext; 579 dev->ibdev.mmap = c4iw_mmap; 580 dev->ibdev.alloc_pd = c4iw_allocate_pd; 581 dev->ibdev.dealloc_pd = c4iw_deallocate_pd; 582 dev->ibdev.create_ah = c4iw_ah_create; 583 dev->ibdev.destroy_ah = c4iw_ah_destroy; 584 dev->ibdev.create_qp = c4iw_create_qp; 585 dev->ibdev.modify_qp = c4iw_ib_modify_qp; 586 dev->ibdev.query_qp = c4iw_ib_query_qp; 587 dev->ibdev.destroy_qp = c4iw_destroy_qp; 588 dev->ibdev.create_cq = c4iw_create_cq; 589 dev->ibdev.destroy_cq = c4iw_destroy_cq; 590 dev->ibdev.resize_cq = c4iw_resize_cq; 591 dev->ibdev.poll_cq = c4iw_poll_cq; 592 dev->ibdev.get_dma_mr = c4iw_get_dma_mr; 593 dev->ibdev.reg_user_mr = c4iw_reg_user_mr; 594 dev->ibdev.dereg_mr = c4iw_dereg_mr; 595 dev->ibdev.alloc_mw = c4iw_alloc_mw; 596 dev->ibdev.dealloc_mw = c4iw_dealloc_mw; 597 dev->ibdev.alloc_mr = c4iw_alloc_mr; 598 dev->ibdev.map_mr_sg = c4iw_map_mr_sg; 599 dev->ibdev.attach_mcast = c4iw_multicast_attach; 600 dev->ibdev.detach_mcast = c4iw_multicast_detach; 601 dev->ibdev.process_mad = c4iw_process_mad; 602 dev->ibdev.req_notify_cq = c4iw_arm_cq; 603 dev->ibdev.post_send = c4iw_post_send; 604 dev->ibdev.post_recv = c4iw_post_receive; 605 dev->ibdev.alloc_hw_stats = c4iw_alloc_stats; 606 dev->ibdev.get_hw_stats = c4iw_get_mib; 607 dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION; 608 dev->ibdev.get_port_immutable = c4iw_port_immutable; 609 dev->ibdev.get_dev_fw_str = get_dev_fw_str; 610 611 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); 612 if (!dev->ibdev.iwcm) 613 return -ENOMEM; 614 615 dev->ibdev.iwcm->connect = c4iw_connect; 616 dev->ibdev.iwcm->accept = c4iw_accept_cr; 617 dev->ibdev.iwcm->reject = c4iw_reject_cr; 618 dev->ibdev.iwcm->create_listen = c4iw_create_listen; 619 dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen; 620 dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref; 621 dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref; 622 dev->ibdev.iwcm->get_qp = c4iw_get_qp; 623 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name, 624 sizeof(dev->ibdev.iwcm->ifname)); 625 626 ret = ib_register_device(&dev->ibdev, NULL); 627 if (ret) 628 goto bail1; 629 630 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) { 631 ret = device_create_file(&dev->ibdev.dev, 632 c4iw_class_attributes[i]); 633 if (ret) 634 goto bail2; 635 } 636 return 0; 637 bail2: 638 ib_unregister_device(&dev->ibdev); 639 bail1: 640 kfree(dev->ibdev.iwcm); 641 return ret; 642 } 643 644 void c4iw_unregister_device(struct c4iw_dev *dev) 645 { 646 int i; 647 648 pr_debug("%s c4iw_dev %p\n", __func__, dev); 649 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) 650 device_remove_file(&dev->ibdev.dev, 651 c4iw_class_attributes[i]); 652 ib_unregister_device(&dev->ibdev); 653 kfree(dev->ibdev.iwcm); 654 return; 655 } 656