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