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("ucontext %p\n", 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("context %p\n", 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("ibdev %p\n", 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("pgoff 0x%lx key 0x%x len %d\n", 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("ibpd %p pdid 0x%x\n", 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("ibdev %p\n", 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 struct c4iw_alloc_pd_resp uresp = {.pdid = php->pdid}; 285 286 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) { 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 pr_debug("pdid 0x%0x ptr 0x%p\n", 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 pr_debug("ibdev %p\n", 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 pr_debug("ibdev %p, port %d, index %d, gid %p\n", 314 ibdev, port, index, gid); 315 if (!port) 316 return -EINVAL; 317 dev = to_c4iw_dev(ibdev); 318 memset(&(gid->raw[0]), 0, sizeof(gid->raw)); 319 memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6); 320 return 0; 321 } 322 323 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props, 324 struct ib_udata *uhw) 325 { 326 327 struct c4iw_dev *dev; 328 329 pr_debug("ibdev %p\n", ibdev); 330 331 if (uhw->inlen || uhw->outlen) 332 return -EINVAL; 333 334 dev = to_c4iw_dev(ibdev); 335 memset(props, 0, sizeof *props); 336 memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 337 props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type); 338 props->fw_ver = dev->rdev.lldi.fw_vers; 339 props->device_cap_flags = dev->device_cap_flags; 340 props->page_size_cap = T4_PAGESIZE_MASK; 341 props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor; 342 props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device; 343 props->max_mr_size = T4_MAX_MR_SIZE; 344 props->max_qp = dev->rdev.lldi.vr->qp.size / 2; 345 props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth; 346 props->max_sge = T4_MAX_RECV_SGE; 347 props->max_sge_rd = 1; 348 props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter; 349 props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp, 350 c4iw_max_read_depth); 351 props->max_qp_init_rd_atom = props->max_qp_rd_atom; 352 props->max_cq = dev->rdev.lldi.vr->qp.size; 353 props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth; 354 props->max_mr = c4iw_num_stags(&dev->rdev); 355 props->max_pd = T4_MAX_NUM_PD; 356 props->local_ca_ack_delay = 0; 357 props->max_fast_reg_page_list_len = 358 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl); 359 360 return 0; 361 } 362 363 static int c4iw_query_port(struct ib_device *ibdev, u8 port, 364 struct ib_port_attr *props) 365 { 366 struct c4iw_dev *dev; 367 struct net_device *netdev; 368 struct in_device *inetdev; 369 370 pr_debug("ibdev %p\n", ibdev); 371 372 dev = to_c4iw_dev(ibdev); 373 netdev = dev->rdev.lldi.ports[port-1]; 374 /* props being zeroed by the caller, avoid zeroing it here */ 375 props->max_mtu = IB_MTU_4096; 376 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu); 377 378 if (!netif_carrier_ok(netdev)) 379 props->state = IB_PORT_DOWN; 380 else { 381 inetdev = in_dev_get(netdev); 382 if (inetdev) { 383 if (inetdev->ifa_list) 384 props->state = IB_PORT_ACTIVE; 385 else 386 props->state = IB_PORT_INIT; 387 in_dev_put(inetdev); 388 } else 389 props->state = IB_PORT_INIT; 390 } 391 392 props->port_cap_flags = 393 IB_PORT_CM_SUP | 394 IB_PORT_SNMP_TUNNEL_SUP | 395 IB_PORT_REINIT_SUP | 396 IB_PORT_DEVICE_MGMT_SUP | 397 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; 398 props->gid_tbl_len = 1; 399 props->pkey_tbl_len = 1; 400 props->active_width = 2; 401 props->active_speed = IB_SPEED_DDR; 402 props->max_msg_sz = -1; 403 404 return 0; 405 } 406 407 static ssize_t show_rev(struct device *dev, struct device_attribute *attr, 408 char *buf) 409 { 410 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 411 ibdev.dev); 412 pr_debug("dev 0x%p\n", dev); 413 return sprintf(buf, "%d\n", 414 CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type)); 415 } 416 417 static ssize_t show_hca(struct device *dev, struct device_attribute *attr, 418 char *buf) 419 { 420 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 421 ibdev.dev); 422 struct ethtool_drvinfo info; 423 struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0]; 424 425 pr_debug("dev 0x%p\n", dev); 426 lldev->ethtool_ops->get_drvinfo(lldev, &info); 427 return sprintf(buf, "%s\n", info.driver); 428 } 429 430 static ssize_t show_board(struct device *dev, struct device_attribute *attr, 431 char *buf) 432 { 433 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 434 ibdev.dev); 435 pr_debug("dev 0x%p\n", dev); 436 return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor, 437 c4iw_dev->rdev.lldi.pdev->device); 438 } 439 440 enum counters { 441 IP4INSEGS, 442 IP4OUTSEGS, 443 IP4RETRANSSEGS, 444 IP4OUTRSTS, 445 IP6INSEGS, 446 IP6OUTSEGS, 447 IP6RETRANSSEGS, 448 IP6OUTRSTS, 449 NR_COUNTERS 450 }; 451 452 static const char * const names[] = { 453 [IP4INSEGS] = "ip4InSegs", 454 [IP4OUTSEGS] = "ip4OutSegs", 455 [IP4RETRANSSEGS] = "ip4RetransSegs", 456 [IP4OUTRSTS] = "ip4OutRsts", 457 [IP6INSEGS] = "ip6InSegs", 458 [IP6OUTSEGS] = "ip6OutSegs", 459 [IP6RETRANSSEGS] = "ip6RetransSegs", 460 [IP6OUTRSTS] = "ip6OutRsts" 461 }; 462 463 static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev, 464 u8 port_num) 465 { 466 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS); 467 468 if (port_num != 0) 469 return NULL; 470 471 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS, 472 RDMA_HW_STATS_DEFAULT_LIFESPAN); 473 } 474 475 static int c4iw_get_mib(struct ib_device *ibdev, 476 struct rdma_hw_stats *stats, 477 u8 port, int index) 478 { 479 struct tp_tcp_stats v4, v6; 480 struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev); 481 482 cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6); 483 stats->value[IP4INSEGS] = v4.tcp_in_segs; 484 stats->value[IP4OUTSEGS] = v4.tcp_out_segs; 485 stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs; 486 stats->value[IP4OUTRSTS] = v4.tcp_out_rsts; 487 stats->value[IP6INSEGS] = v6.tcp_in_segs; 488 stats->value[IP6OUTSEGS] = v6.tcp_out_segs; 489 stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs; 490 stats->value[IP6OUTRSTS] = v6.tcp_out_rsts; 491 492 return stats->num_counters; 493 } 494 495 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 496 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 497 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 498 499 static struct device_attribute *c4iw_class_attributes[] = { 500 &dev_attr_hw_rev, 501 &dev_attr_hca_type, 502 &dev_attr_board_id, 503 }; 504 505 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num, 506 struct ib_port_immutable *immutable) 507 { 508 struct ib_port_attr attr; 509 int err; 510 511 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; 512 513 err = ib_query_port(ibdev, port_num, &attr); 514 if (err) 515 return err; 516 517 immutable->pkey_tbl_len = attr.pkey_tbl_len; 518 immutable->gid_tbl_len = attr.gid_tbl_len; 519 520 return 0; 521 } 522 523 static void get_dev_fw_str(struct ib_device *dev, char *str) 524 { 525 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 526 ibdev); 527 pr_debug("dev 0x%p\n", dev); 528 529 snprintf(str, IB_FW_VERSION_NAME_MAX, "%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 static struct net_device *get_netdev(struct ib_device *dev, u8 port) 537 { 538 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, ibdev); 539 struct c4iw_rdev *rdev = &c4iw_dev->rdev; 540 struct net_device *ndev; 541 542 if (!port || port > rdev->lldi.nports) 543 return NULL; 544 545 rcu_read_lock(); 546 ndev = rdev->lldi.ports[port - 1]; 547 if (ndev) 548 dev_hold(ndev); 549 rcu_read_unlock(); 550 551 return ndev; 552 } 553 554 static int fill_res_entry(struct sk_buff *msg, struct rdma_restrack_entry *res) 555 { 556 return (res->type < ARRAY_SIZE(c4iw_restrack_funcs) && 557 c4iw_restrack_funcs[res->type]) ? 558 c4iw_restrack_funcs[res->type](msg, res) : 0; 559 } 560 561 void c4iw_register_device(struct work_struct *work) 562 { 563 int ret; 564 int i; 565 struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work); 566 struct c4iw_dev *dev = ctx->dev; 567 568 pr_debug("c4iw_dev %p\n", dev); 569 strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX); 570 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); 571 memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 572 dev->ibdev.owner = THIS_MODULE; 573 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW; 574 if (fastreg_support) 575 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; 576 dev->ibdev.local_dma_lkey = 0; 577 dev->ibdev.uverbs_cmd_mask = 578 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 579 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 580 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 581 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 582 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 583 (1ull << IB_USER_VERBS_CMD_REG_MR) | 584 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 585 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 586 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 587 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 588 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | 589 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 590 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 591 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 592 (1ull << IB_USER_VERBS_CMD_POLL_CQ) | 593 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 594 (1ull << IB_USER_VERBS_CMD_POST_SEND) | 595 (1ull << IB_USER_VERBS_CMD_POST_RECV); 596 dev->ibdev.node_type = RDMA_NODE_RNIC; 597 BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX); 598 memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC)); 599 dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports; 600 dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq; 601 dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev; 602 dev->ibdev.query_device = c4iw_query_device; 603 dev->ibdev.query_port = c4iw_query_port; 604 dev->ibdev.query_pkey = c4iw_query_pkey; 605 dev->ibdev.query_gid = c4iw_query_gid; 606 dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext; 607 dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext; 608 dev->ibdev.mmap = c4iw_mmap; 609 dev->ibdev.alloc_pd = c4iw_allocate_pd; 610 dev->ibdev.dealloc_pd = c4iw_deallocate_pd; 611 dev->ibdev.create_ah = c4iw_ah_create; 612 dev->ibdev.destroy_ah = c4iw_ah_destroy; 613 dev->ibdev.create_qp = c4iw_create_qp; 614 dev->ibdev.modify_qp = c4iw_ib_modify_qp; 615 dev->ibdev.query_qp = c4iw_ib_query_qp; 616 dev->ibdev.destroy_qp = c4iw_destroy_qp; 617 dev->ibdev.create_cq = c4iw_create_cq; 618 dev->ibdev.destroy_cq = c4iw_destroy_cq; 619 dev->ibdev.resize_cq = c4iw_resize_cq; 620 dev->ibdev.poll_cq = c4iw_poll_cq; 621 dev->ibdev.get_dma_mr = c4iw_get_dma_mr; 622 dev->ibdev.reg_user_mr = c4iw_reg_user_mr; 623 dev->ibdev.dereg_mr = c4iw_dereg_mr; 624 dev->ibdev.alloc_mw = c4iw_alloc_mw; 625 dev->ibdev.dealloc_mw = c4iw_dealloc_mw; 626 dev->ibdev.alloc_mr = c4iw_alloc_mr; 627 dev->ibdev.map_mr_sg = c4iw_map_mr_sg; 628 dev->ibdev.attach_mcast = c4iw_multicast_attach; 629 dev->ibdev.detach_mcast = c4iw_multicast_detach; 630 dev->ibdev.process_mad = c4iw_process_mad; 631 dev->ibdev.req_notify_cq = c4iw_arm_cq; 632 dev->ibdev.post_send = c4iw_post_send; 633 dev->ibdev.post_recv = c4iw_post_receive; 634 dev->ibdev.alloc_hw_stats = c4iw_alloc_stats; 635 dev->ibdev.get_hw_stats = c4iw_get_mib; 636 dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION; 637 dev->ibdev.get_port_immutable = c4iw_port_immutable; 638 dev->ibdev.get_dev_fw_str = get_dev_fw_str; 639 dev->ibdev.get_netdev = get_netdev; 640 641 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); 642 if (!dev->ibdev.iwcm) { 643 ret = -ENOMEM; 644 goto err_dealloc_ctx; 645 } 646 647 dev->ibdev.iwcm->connect = c4iw_connect; 648 dev->ibdev.iwcm->accept = c4iw_accept_cr; 649 dev->ibdev.iwcm->reject = c4iw_reject_cr; 650 dev->ibdev.iwcm->create_listen = c4iw_create_listen; 651 dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen; 652 dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref; 653 dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref; 654 dev->ibdev.iwcm->get_qp = c4iw_get_qp; 655 dev->ibdev.res.fill_res_entry = fill_res_entry; 656 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name, 657 sizeof(dev->ibdev.iwcm->ifname)); 658 659 dev->ibdev.driver_id = RDMA_DRIVER_CXGB4; 660 ret = ib_register_device(&dev->ibdev, NULL); 661 if (ret) 662 goto err_kfree_iwcm; 663 664 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) { 665 ret = device_create_file(&dev->ibdev.dev, 666 c4iw_class_attributes[i]); 667 if (ret) 668 goto err_unregister_device; 669 } 670 return; 671 err_unregister_device: 672 ib_unregister_device(&dev->ibdev); 673 err_kfree_iwcm: 674 kfree(dev->ibdev.iwcm); 675 err_dealloc_ctx: 676 pr_err("%s - Failed registering iwarp device: %d\n", 677 pci_name(ctx->lldi.pdev), ret); 678 c4iw_dealloc(ctx); 679 return; 680 } 681 682 void c4iw_unregister_device(struct c4iw_dev *dev) 683 { 684 int i; 685 686 pr_debug("c4iw_dev %p\n", dev); 687 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) 688 device_remove_file(&dev->ibdev.dev, 689 c4iw_class_attributes[i]); 690 ib_unregister_device(&dev->ibdev); 691 kfree(dev->ibdev.iwcm); 692 return; 693 } 694