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 void c4iw_deallocate_pd(struct ib_pd *pd) 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 } 206 207 static int c4iw_allocate_pd(struct ib_pd *pd, struct ib_ucontext *context, 208 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 (context) { 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); 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_pkey(struct ib_device *ibdev, u8 port, u16 index, 241 u16 *pkey) 242 { 243 pr_debug("ibdev %p\n", ibdev); 244 *pkey = 0; 245 return 0; 246 } 247 248 static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index, 249 union ib_gid *gid) 250 { 251 struct c4iw_dev *dev; 252 253 pr_debug("ibdev %p, port %d, index %d, gid %p\n", 254 ibdev, port, index, gid); 255 if (!port) 256 return -EINVAL; 257 dev = to_c4iw_dev(ibdev); 258 memset(&(gid->raw[0]), 0, sizeof(gid->raw)); 259 memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6); 260 return 0; 261 } 262 263 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props, 264 struct ib_udata *uhw) 265 { 266 267 struct c4iw_dev *dev; 268 269 pr_debug("ibdev %p\n", ibdev); 270 271 if (uhw->inlen || uhw->outlen) 272 return -EINVAL; 273 274 dev = to_c4iw_dev(ibdev); 275 memset(props, 0, sizeof *props); 276 memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 277 props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type); 278 props->fw_ver = dev->rdev.lldi.fw_vers; 279 props->device_cap_flags = dev->device_cap_flags; 280 props->page_size_cap = T4_PAGESIZE_MASK; 281 props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor; 282 props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device; 283 props->max_mr_size = T4_MAX_MR_SIZE; 284 props->max_qp = dev->rdev.lldi.vr->qp.size / 2; 285 props->max_srq = dev->rdev.lldi.vr->srq.size; 286 props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth; 287 props->max_srq_wr = dev->rdev.hw_queue.t4_max_qp_depth; 288 props->max_send_sge = min(T4_MAX_SEND_SGE, T4_MAX_WRITE_SGE); 289 props->max_recv_sge = T4_MAX_RECV_SGE; 290 props->max_srq_sge = T4_MAX_RECV_SGE; 291 props->max_sge_rd = 1; 292 props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter; 293 props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp, 294 c4iw_max_read_depth); 295 props->max_qp_init_rd_atom = props->max_qp_rd_atom; 296 props->max_cq = dev->rdev.lldi.vr->qp.size; 297 props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth; 298 props->max_mr = c4iw_num_stags(&dev->rdev); 299 props->max_pd = T4_MAX_NUM_PD; 300 props->local_ca_ack_delay = 0; 301 props->max_fast_reg_page_list_len = 302 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl); 303 304 return 0; 305 } 306 307 static int c4iw_query_port(struct ib_device *ibdev, u8 port, 308 struct ib_port_attr *props) 309 { 310 struct c4iw_dev *dev; 311 struct net_device *netdev; 312 struct in_device *inetdev; 313 314 pr_debug("ibdev %p\n", ibdev); 315 316 dev = to_c4iw_dev(ibdev); 317 netdev = dev->rdev.lldi.ports[port-1]; 318 /* props being zeroed by the caller, avoid zeroing it here */ 319 props->max_mtu = IB_MTU_4096; 320 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu); 321 322 if (!netif_carrier_ok(netdev)) 323 props->state = IB_PORT_DOWN; 324 else { 325 inetdev = in_dev_get(netdev); 326 if (inetdev) { 327 if (inetdev->ifa_list) 328 props->state = IB_PORT_ACTIVE; 329 else 330 props->state = IB_PORT_INIT; 331 in_dev_put(inetdev); 332 } else 333 props->state = IB_PORT_INIT; 334 } 335 336 props->port_cap_flags = 337 IB_PORT_CM_SUP | 338 IB_PORT_SNMP_TUNNEL_SUP | 339 IB_PORT_REINIT_SUP | 340 IB_PORT_DEVICE_MGMT_SUP | 341 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; 342 props->gid_tbl_len = 1; 343 props->pkey_tbl_len = 1; 344 props->active_width = 2; 345 props->active_speed = IB_SPEED_DDR; 346 props->max_msg_sz = -1; 347 348 return 0; 349 } 350 351 static ssize_t hw_rev_show(struct device *dev, 352 struct device_attribute *attr, char *buf) 353 { 354 struct c4iw_dev *c4iw_dev = 355 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev); 356 357 pr_debug("dev 0x%p\n", dev); 358 return sprintf(buf, "%d\n", 359 CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type)); 360 } 361 static DEVICE_ATTR_RO(hw_rev); 362 363 static ssize_t hca_type_show(struct device *dev, 364 struct device_attribute *attr, char *buf) 365 { 366 struct c4iw_dev *c4iw_dev = 367 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev); 368 struct ethtool_drvinfo info; 369 struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0]; 370 371 pr_debug("dev 0x%p\n", dev); 372 lldev->ethtool_ops->get_drvinfo(lldev, &info); 373 return sprintf(buf, "%s\n", info.driver); 374 } 375 static DEVICE_ATTR_RO(hca_type); 376 377 static ssize_t board_id_show(struct device *dev, struct device_attribute *attr, 378 char *buf) 379 { 380 struct c4iw_dev *c4iw_dev = 381 rdma_device_to_drv_device(dev, struct c4iw_dev, ibdev); 382 383 pr_debug("dev 0x%p\n", dev); 384 return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor, 385 c4iw_dev->rdev.lldi.pdev->device); 386 } 387 static DEVICE_ATTR_RO(board_id); 388 389 enum counters { 390 IP4INSEGS, 391 IP4OUTSEGS, 392 IP4RETRANSSEGS, 393 IP4OUTRSTS, 394 IP6INSEGS, 395 IP6OUTSEGS, 396 IP6RETRANSSEGS, 397 IP6OUTRSTS, 398 NR_COUNTERS 399 }; 400 401 static const char * const names[] = { 402 [IP4INSEGS] = "ip4InSegs", 403 [IP4OUTSEGS] = "ip4OutSegs", 404 [IP4RETRANSSEGS] = "ip4RetransSegs", 405 [IP4OUTRSTS] = "ip4OutRsts", 406 [IP6INSEGS] = "ip6InSegs", 407 [IP6OUTSEGS] = "ip6OutSegs", 408 [IP6RETRANSSEGS] = "ip6RetransSegs", 409 [IP6OUTRSTS] = "ip6OutRsts" 410 }; 411 412 static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev, 413 u8 port_num) 414 { 415 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS); 416 417 if (port_num != 0) 418 return NULL; 419 420 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS, 421 RDMA_HW_STATS_DEFAULT_LIFESPAN); 422 } 423 424 static int c4iw_get_mib(struct ib_device *ibdev, 425 struct rdma_hw_stats *stats, 426 u8 port, int index) 427 { 428 struct tp_tcp_stats v4, v6; 429 struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev); 430 431 cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6); 432 stats->value[IP4INSEGS] = v4.tcp_in_segs; 433 stats->value[IP4OUTSEGS] = v4.tcp_out_segs; 434 stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs; 435 stats->value[IP4OUTRSTS] = v4.tcp_out_rsts; 436 stats->value[IP6INSEGS] = v6.tcp_in_segs; 437 stats->value[IP6OUTSEGS] = v6.tcp_out_segs; 438 stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs; 439 stats->value[IP6OUTRSTS] = v6.tcp_out_rsts; 440 441 return stats->num_counters; 442 } 443 444 static struct attribute *c4iw_class_attributes[] = { 445 &dev_attr_hw_rev.attr, 446 &dev_attr_hca_type.attr, 447 &dev_attr_board_id.attr, 448 NULL 449 }; 450 451 static const struct attribute_group c4iw_attr_group = { 452 .attrs = c4iw_class_attributes, 453 }; 454 455 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num, 456 struct ib_port_immutable *immutable) 457 { 458 struct ib_port_attr attr; 459 int err; 460 461 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; 462 463 err = ib_query_port(ibdev, port_num, &attr); 464 if (err) 465 return err; 466 467 immutable->pkey_tbl_len = attr.pkey_tbl_len; 468 immutable->gid_tbl_len = attr.gid_tbl_len; 469 470 return 0; 471 } 472 473 static void get_dev_fw_str(struct ib_device *dev, char *str) 474 { 475 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 476 ibdev); 477 pr_debug("dev 0x%p\n", dev); 478 479 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u", 480 FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers), 481 FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers), 482 FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers), 483 FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers)); 484 } 485 486 static struct net_device *get_netdev(struct ib_device *dev, u8 port) 487 { 488 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, ibdev); 489 struct c4iw_rdev *rdev = &c4iw_dev->rdev; 490 struct net_device *ndev; 491 492 if (!port || port > rdev->lldi.nports) 493 return NULL; 494 495 rcu_read_lock(); 496 ndev = rdev->lldi.ports[port - 1]; 497 if (ndev) 498 dev_hold(ndev); 499 rcu_read_unlock(); 500 501 return ndev; 502 } 503 504 static int fill_res_entry(struct sk_buff *msg, struct rdma_restrack_entry *res) 505 { 506 return (res->type < ARRAY_SIZE(c4iw_restrack_funcs) && 507 c4iw_restrack_funcs[res->type]) ? 508 c4iw_restrack_funcs[res->type](msg, res) : 0; 509 } 510 511 static const struct ib_device_ops c4iw_dev_ops = { 512 .alloc_hw_stats = c4iw_alloc_stats, 513 .alloc_mr = c4iw_alloc_mr, 514 .alloc_mw = c4iw_alloc_mw, 515 .alloc_pd = c4iw_allocate_pd, 516 .alloc_ucontext = c4iw_alloc_ucontext, 517 .create_cq = c4iw_create_cq, 518 .create_qp = c4iw_create_qp, 519 .create_srq = c4iw_create_srq, 520 .dealloc_mw = c4iw_dealloc_mw, 521 .dealloc_pd = c4iw_deallocate_pd, 522 .dealloc_ucontext = c4iw_dealloc_ucontext, 523 .dereg_mr = c4iw_dereg_mr, 524 .destroy_cq = c4iw_destroy_cq, 525 .destroy_qp = c4iw_destroy_qp, 526 .destroy_srq = c4iw_destroy_srq, 527 .fill_res_entry = fill_res_entry, 528 .get_dev_fw_str = get_dev_fw_str, 529 .get_dma_mr = c4iw_get_dma_mr, 530 .get_hw_stats = c4iw_get_mib, 531 .get_netdev = get_netdev, 532 .get_port_immutable = c4iw_port_immutable, 533 .map_mr_sg = c4iw_map_mr_sg, 534 .mmap = c4iw_mmap, 535 .modify_qp = c4iw_ib_modify_qp, 536 .modify_srq = c4iw_modify_srq, 537 .poll_cq = c4iw_poll_cq, 538 .post_recv = c4iw_post_receive, 539 .post_send = c4iw_post_send, 540 .post_srq_recv = c4iw_post_srq_recv, 541 .query_device = c4iw_query_device, 542 .query_gid = c4iw_query_gid, 543 .query_pkey = c4iw_query_pkey, 544 .query_port = c4iw_query_port, 545 .query_qp = c4iw_ib_query_qp, 546 .reg_user_mr = c4iw_reg_user_mr, 547 .req_notify_cq = c4iw_arm_cq, 548 INIT_RDMA_OBJ_SIZE(ib_pd, c4iw_pd, ibpd), 549 INIT_RDMA_OBJ_SIZE(ib_ucontext, c4iw_ucontext, ibucontext), 550 }; 551 552 void c4iw_register_device(struct work_struct *work) 553 { 554 int ret; 555 struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work); 556 struct c4iw_dev *dev = ctx->dev; 557 558 pr_debug("c4iw_dev %p\n", dev); 559 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); 560 memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 561 dev->ibdev.owner = THIS_MODULE; 562 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW; 563 if (fastreg_support) 564 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; 565 dev->ibdev.local_dma_lkey = 0; 566 dev->ibdev.uverbs_cmd_mask = 567 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 568 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 569 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 570 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 571 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 572 (1ull << IB_USER_VERBS_CMD_REG_MR) | 573 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 574 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 575 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 576 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 577 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | 578 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 579 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 580 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 581 (1ull << IB_USER_VERBS_CMD_POLL_CQ) | 582 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 583 (1ull << IB_USER_VERBS_CMD_POST_SEND) | 584 (1ull << IB_USER_VERBS_CMD_POST_RECV) | 585 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 586 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 587 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 588 dev->ibdev.node_type = RDMA_NODE_RNIC; 589 BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX); 590 memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC)); 591 dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports; 592 dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq; 593 dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev; 594 dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION; 595 596 dev->ibdev.iwcm = kzalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); 597 if (!dev->ibdev.iwcm) { 598 ret = -ENOMEM; 599 goto err_dealloc_ctx; 600 } 601 602 dev->ibdev.iwcm->connect = c4iw_connect; 603 dev->ibdev.iwcm->accept = c4iw_accept_cr; 604 dev->ibdev.iwcm->reject = c4iw_reject_cr; 605 dev->ibdev.iwcm->create_listen = c4iw_create_listen; 606 dev->ibdev.iwcm->destroy_listen = c4iw_destroy_listen; 607 dev->ibdev.iwcm->add_ref = c4iw_qp_add_ref; 608 dev->ibdev.iwcm->rem_ref = c4iw_qp_rem_ref; 609 dev->ibdev.iwcm->get_qp = c4iw_get_qp; 610 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name, 611 sizeof(dev->ibdev.iwcm->ifname)); 612 613 rdma_set_device_sysfs_group(&dev->ibdev, &c4iw_attr_group); 614 dev->ibdev.driver_id = RDMA_DRIVER_CXGB4; 615 ib_set_device_ops(&dev->ibdev, &c4iw_dev_ops); 616 ret = ib_register_device(&dev->ibdev, "cxgb4_%d"); 617 if (ret) 618 goto err_kfree_iwcm; 619 return; 620 621 err_kfree_iwcm: 622 kfree(dev->ibdev.iwcm); 623 err_dealloc_ctx: 624 pr_err("%s - Failed registering iwarp device: %d\n", 625 pci_name(ctx->lldi.pdev), ret); 626 c4iw_dealloc(ctx); 627 return; 628 } 629 630 void c4iw_unregister_device(struct c4iw_dev *dev) 631 { 632 pr_debug("c4iw_dev %p\n", dev); 633 ib_unregister_device(&dev->ibdev); 634 kfree(dev->ibdev.iwcm); 635 return; 636 } 637