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 static int c4iw_dealloc_ucontext(struct ib_ucontext *context) 97 { 98 struct c4iw_dev *rhp = to_c4iw_dev(context->device); 99 struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context); 100 struct c4iw_mm_entry *mm, *tmp; 101 102 PDBG("%s context %p\n", __func__, context); 103 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) 104 kfree(mm); 105 c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx); 106 kfree(ucontext); 107 return 0; 108 } 109 110 static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev, 111 struct ib_udata *udata) 112 { 113 struct c4iw_ucontext *context; 114 struct c4iw_dev *rhp = to_c4iw_dev(ibdev); 115 static int warned; 116 struct c4iw_alloc_ucontext_resp uresp; 117 int ret = 0; 118 struct c4iw_mm_entry *mm = NULL; 119 120 PDBG("%s ibdev %p\n", __func__, ibdev); 121 context = kzalloc(sizeof(*context), GFP_KERNEL); 122 if (!context) { 123 ret = -ENOMEM; 124 goto err; 125 } 126 127 c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx); 128 INIT_LIST_HEAD(&context->mmaps); 129 spin_lock_init(&context->mmap_lock); 130 131 if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) { 132 if (!warned++) 133 pr_err(MOD "Warning - downlevel libcxgb4 (non-fatal), device status page disabled."); 134 rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED; 135 } else { 136 mm = kmalloc(sizeof(*mm), GFP_KERNEL); 137 if (!mm) { 138 ret = -ENOMEM; 139 goto err_free; 140 } 141 142 uresp.status_page_size = PAGE_SIZE; 143 144 spin_lock(&context->mmap_lock); 145 uresp.status_page_key = context->key; 146 context->key += PAGE_SIZE; 147 spin_unlock(&context->mmap_lock); 148 149 ret = ib_copy_to_udata(udata, &uresp, 150 sizeof(uresp) - sizeof(uresp.reserved)); 151 if (ret) 152 goto err_mm; 153 154 mm->key = uresp.status_page_key; 155 mm->addr = virt_to_phys(rhp->rdev.status_page); 156 mm->len = PAGE_SIZE; 157 insert_mmap(context, mm); 158 } 159 return &context->ibucontext; 160 err_mm: 161 kfree(mm); 162 err_free: 163 kfree(context); 164 err: 165 return ERR_PTR(ret); 166 } 167 168 static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) 169 { 170 int len = vma->vm_end - vma->vm_start; 171 u32 key = vma->vm_pgoff << PAGE_SHIFT; 172 struct c4iw_rdev *rdev; 173 int ret = 0; 174 struct c4iw_mm_entry *mm; 175 struct c4iw_ucontext *ucontext; 176 u64 addr; 177 178 PDBG("%s pgoff 0x%lx key 0x%x len %d\n", __func__, vma->vm_pgoff, 179 key, len); 180 181 if (vma->vm_start & (PAGE_SIZE-1)) 182 return -EINVAL; 183 184 rdev = &(to_c4iw_dev(context->device)->rdev); 185 ucontext = to_c4iw_ucontext(context); 186 187 mm = remove_mmap(ucontext, key, len); 188 if (!mm) 189 return -EINVAL; 190 addr = mm->addr; 191 kfree(mm); 192 193 if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) && 194 (addr < (pci_resource_start(rdev->lldi.pdev, 0) + 195 pci_resource_len(rdev->lldi.pdev, 0)))) { 196 197 /* 198 * MA_SYNC register... 199 */ 200 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 201 ret = io_remap_pfn_range(vma, vma->vm_start, 202 addr >> PAGE_SHIFT, 203 len, vma->vm_page_prot); 204 } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) && 205 (addr < (pci_resource_start(rdev->lldi.pdev, 2) + 206 pci_resource_len(rdev->lldi.pdev, 2)))) { 207 208 /* 209 * Map user DB or OCQP memory... 210 */ 211 if (addr >= rdev->oc_mw_pa) 212 vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot); 213 else { 214 if (!is_t4(rdev->lldi.adapter_type)) 215 vma->vm_page_prot = 216 t4_pgprot_wc(vma->vm_page_prot); 217 else 218 vma->vm_page_prot = 219 pgprot_noncached(vma->vm_page_prot); 220 } 221 ret = io_remap_pfn_range(vma, vma->vm_start, 222 addr >> PAGE_SHIFT, 223 len, vma->vm_page_prot); 224 } else { 225 226 /* 227 * Map WQ or CQ contig dma memory... 228 */ 229 ret = remap_pfn_range(vma, vma->vm_start, 230 addr >> PAGE_SHIFT, 231 len, vma->vm_page_prot); 232 } 233 234 return ret; 235 } 236 237 static int c4iw_deallocate_pd(struct ib_pd *pd) 238 { 239 struct c4iw_dev *rhp; 240 struct c4iw_pd *php; 241 242 php = to_c4iw_pd(pd); 243 rhp = php->rhp; 244 PDBG("%s ibpd %p pdid 0x%x\n", __func__, pd, php->pdid); 245 c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid); 246 mutex_lock(&rhp->rdev.stats.lock); 247 rhp->rdev.stats.pd.cur--; 248 mutex_unlock(&rhp->rdev.stats.lock); 249 kfree(php); 250 return 0; 251 } 252 253 static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev, 254 struct ib_ucontext *context, 255 struct ib_udata *udata) 256 { 257 struct c4iw_pd *php; 258 u32 pdid; 259 struct c4iw_dev *rhp; 260 261 PDBG("%s ibdev %p\n", __func__, ibdev); 262 rhp = (struct c4iw_dev *) ibdev; 263 pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_table); 264 if (!pdid) 265 return ERR_PTR(-EINVAL); 266 php = kzalloc(sizeof(*php), GFP_KERNEL); 267 if (!php) { 268 c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid); 269 return ERR_PTR(-ENOMEM); 270 } 271 php->pdid = pdid; 272 php->rhp = rhp; 273 if (context) { 274 if (ib_copy_to_udata(udata, &php->pdid, sizeof(u32))) { 275 c4iw_deallocate_pd(&php->ibpd); 276 return ERR_PTR(-EFAULT); 277 } 278 } 279 mutex_lock(&rhp->rdev.stats.lock); 280 rhp->rdev.stats.pd.cur++; 281 if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max) 282 rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur; 283 mutex_unlock(&rhp->rdev.stats.lock); 284 PDBG("%s pdid 0x%0x ptr 0x%p\n", __func__, pdid, php); 285 return &php->ibpd; 286 } 287 288 static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 289 u16 *pkey) 290 { 291 PDBG("%s ibdev %p\n", __func__, ibdev); 292 *pkey = 0; 293 return 0; 294 } 295 296 static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index, 297 union ib_gid *gid) 298 { 299 struct c4iw_dev *dev; 300 301 PDBG("%s ibdev %p, port %d, index %d, gid %p\n", 302 __func__, ibdev, port, index, gid); 303 dev = to_c4iw_dev(ibdev); 304 BUG_ON(port == 0); 305 memset(&(gid->raw[0]), 0, sizeof(gid->raw)); 306 memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6); 307 return 0; 308 } 309 310 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props, 311 struct ib_udata *uhw) 312 { 313 314 struct c4iw_dev *dev; 315 316 PDBG("%s ibdev %p\n", __func__, ibdev); 317 318 if (uhw->inlen || uhw->outlen) 319 return -EINVAL; 320 321 dev = to_c4iw_dev(ibdev); 322 memset(props, 0, sizeof *props); 323 memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 324 props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type); 325 props->fw_ver = dev->rdev.lldi.fw_vers; 326 props->device_cap_flags = dev->device_cap_flags; 327 props->page_size_cap = T4_PAGESIZE_MASK; 328 props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor; 329 props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device; 330 props->max_mr_size = T4_MAX_MR_SIZE; 331 props->max_qp = dev->rdev.lldi.vr->qp.size / 2; 332 props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth; 333 props->max_sge = T4_MAX_RECV_SGE; 334 props->max_sge_rd = 1; 335 props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter; 336 props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp, 337 c4iw_max_read_depth); 338 props->max_qp_init_rd_atom = props->max_qp_rd_atom; 339 props->max_cq = dev->rdev.lldi.vr->qp.size; 340 props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth; 341 props->max_mr = c4iw_num_stags(&dev->rdev); 342 props->max_pd = T4_MAX_NUM_PD; 343 props->local_ca_ack_delay = 0; 344 props->max_fast_reg_page_list_len = 345 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl); 346 347 return 0; 348 } 349 350 static int c4iw_query_port(struct ib_device *ibdev, u8 port, 351 struct ib_port_attr *props) 352 { 353 struct c4iw_dev *dev; 354 struct net_device *netdev; 355 struct in_device *inetdev; 356 357 PDBG("%s ibdev %p\n", __func__, ibdev); 358 359 dev = to_c4iw_dev(ibdev); 360 netdev = dev->rdev.lldi.ports[port-1]; 361 362 memset(props, 0, sizeof(struct ib_port_attr)); 363 props->max_mtu = IB_MTU_4096; 364 if (netdev->mtu >= 4096) 365 props->active_mtu = IB_MTU_4096; 366 else if (netdev->mtu >= 2048) 367 props->active_mtu = IB_MTU_2048; 368 else if (netdev->mtu >= 1024) 369 props->active_mtu = IB_MTU_1024; 370 else if (netdev->mtu >= 512) 371 props->active_mtu = IB_MTU_512; 372 else 373 props->active_mtu = IB_MTU_256; 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 PDBG("%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 PDBG("%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 PDBG("%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 err = c4iw_query_port(ibdev, port_num, &attr); 509 if (err) 510 return err; 511 512 immutable->pkey_tbl_len = attr.pkey_tbl_len; 513 immutable->gid_tbl_len = attr.gid_tbl_len; 514 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; 515 516 return 0; 517 } 518 519 static void get_dev_fw_str(struct ib_device *dev, char *str, 520 size_t str_len) 521 { 522 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 523 ibdev); 524 PDBG("%s dev 0x%p\n", __func__, dev); 525 526 snprintf(str, str_len, "%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 PDBG("%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.dma_device = &(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 dev->ibdev.drain_sq = c4iw_drain_sq; 611 dev->ibdev.drain_rq = c4iw_drain_rq; 612 613 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); 614 if (!dev->ibdev.iwcm) 615 return -ENOMEM; 616 617 dev->ibdev.iwcm->connect = c4iw_connect; 618 dev->ibdev.iwcm->accept = c4iw_accept_cr; 619 dev->ibdev.iwcm->reject = c4iw_reject_cr; 620 dev->ibdev.iwcm->create_listen = c4iw_create_listen; 621 dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen; 622 dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref; 623 dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref; 624 dev->ibdev.iwcm->get_qp = c4iw_get_qp; 625 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name, 626 sizeof(dev->ibdev.iwcm->ifname)); 627 628 ret = ib_register_device(&dev->ibdev, NULL); 629 if (ret) 630 goto bail1; 631 632 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) { 633 ret = device_create_file(&dev->ibdev.dev, 634 c4iw_class_attributes[i]); 635 if (ret) 636 goto bail2; 637 } 638 return 0; 639 bail2: 640 ib_unregister_device(&dev->ibdev); 641 bail1: 642 kfree(dev->ibdev.iwcm); 643 return ret; 644 } 645 646 void c4iw_unregister_device(struct c4iw_dev *dev) 647 { 648 int i; 649 650 PDBG("%s c4iw_dev %p\n", __func__, dev); 651 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) 652 device_remove_file(&dev->ibdev.dev, 653 c4iw_class_attributes[i]); 654 ib_unregister_device(&dev->ibdev); 655 kfree(dev->ibdev.iwcm); 656 return; 657 } 658