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 void _c4iw_free_ucontext(struct kref *kref) 62 { 63 struct c4iw_ucontext *ucontext; 64 struct c4iw_dev *rhp; 65 struct c4iw_mm_entry *mm, *tmp; 66 67 ucontext = container_of(kref, struct c4iw_ucontext, kref); 68 rhp = to_c4iw_dev(ucontext->ibucontext.device); 69 70 pr_debug("ucontext %p\n", ucontext); 71 list_for_each_entry_safe(mm, tmp, &ucontext->mmaps, entry) 72 kfree(mm); 73 c4iw_release_dev_ucontext(&rhp->rdev, &ucontext->uctx); 74 kfree(ucontext); 75 } 76 77 static int c4iw_dealloc_ucontext(struct ib_ucontext *context) 78 { 79 struct c4iw_ucontext *ucontext = to_c4iw_ucontext(context); 80 81 pr_debug("context %p\n", context); 82 c4iw_put_ucontext(ucontext); 83 return 0; 84 } 85 86 static struct ib_ucontext *c4iw_alloc_ucontext(struct ib_device *ibdev, 87 struct ib_udata *udata) 88 { 89 struct c4iw_ucontext *context; 90 struct c4iw_dev *rhp = to_c4iw_dev(ibdev); 91 struct c4iw_alloc_ucontext_resp uresp; 92 int ret = 0; 93 struct c4iw_mm_entry *mm = NULL; 94 95 pr_debug("ibdev %p\n", ibdev); 96 context = kzalloc(sizeof(*context), GFP_KERNEL); 97 if (!context) { 98 ret = -ENOMEM; 99 goto err; 100 } 101 102 c4iw_init_dev_ucontext(&rhp->rdev, &context->uctx); 103 INIT_LIST_HEAD(&context->mmaps); 104 spin_lock_init(&context->mmap_lock); 105 kref_init(&context->kref); 106 107 if (udata->outlen < sizeof(uresp) - sizeof(uresp.reserved)) { 108 pr_err_once("Warning - downlevel libcxgb4 (non-fatal), device status page disabled\n"); 109 rhp->rdev.flags |= T4_STATUS_PAGE_DISABLED; 110 } else { 111 mm = kmalloc(sizeof(*mm), GFP_KERNEL); 112 if (!mm) { 113 ret = -ENOMEM; 114 goto err_free; 115 } 116 117 uresp.status_page_size = PAGE_SIZE; 118 119 spin_lock(&context->mmap_lock); 120 uresp.status_page_key = context->key; 121 context->key += PAGE_SIZE; 122 spin_unlock(&context->mmap_lock); 123 124 ret = ib_copy_to_udata(udata, &uresp, 125 sizeof(uresp) - sizeof(uresp.reserved)); 126 if (ret) 127 goto err_mm; 128 129 mm->key = uresp.status_page_key; 130 mm->addr = virt_to_phys(rhp->rdev.status_page); 131 mm->len = PAGE_SIZE; 132 insert_mmap(context, mm); 133 } 134 return &context->ibucontext; 135 err_mm: 136 kfree(mm); 137 err_free: 138 kfree(context); 139 err: 140 return ERR_PTR(ret); 141 } 142 143 static int c4iw_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) 144 { 145 int len = vma->vm_end - vma->vm_start; 146 u32 key = vma->vm_pgoff << PAGE_SHIFT; 147 struct c4iw_rdev *rdev; 148 int ret = 0; 149 struct c4iw_mm_entry *mm; 150 struct c4iw_ucontext *ucontext; 151 u64 addr; 152 153 pr_debug("pgoff 0x%lx key 0x%x len %d\n", vma->vm_pgoff, 154 key, len); 155 156 if (vma->vm_start & (PAGE_SIZE-1)) 157 return -EINVAL; 158 159 rdev = &(to_c4iw_dev(context->device)->rdev); 160 ucontext = to_c4iw_ucontext(context); 161 162 mm = remove_mmap(ucontext, key, len); 163 if (!mm) 164 return -EINVAL; 165 addr = mm->addr; 166 kfree(mm); 167 168 if ((addr >= pci_resource_start(rdev->lldi.pdev, 0)) && 169 (addr < (pci_resource_start(rdev->lldi.pdev, 0) + 170 pci_resource_len(rdev->lldi.pdev, 0)))) { 171 172 /* 173 * MA_SYNC register... 174 */ 175 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 176 ret = io_remap_pfn_range(vma, vma->vm_start, 177 addr >> PAGE_SHIFT, 178 len, vma->vm_page_prot); 179 } else if ((addr >= pci_resource_start(rdev->lldi.pdev, 2)) && 180 (addr < (pci_resource_start(rdev->lldi.pdev, 2) + 181 pci_resource_len(rdev->lldi.pdev, 2)))) { 182 183 /* 184 * Map user DB or OCQP memory... 185 */ 186 if (addr >= rdev->oc_mw_pa) 187 vma->vm_page_prot = t4_pgprot_wc(vma->vm_page_prot); 188 else { 189 if (!is_t4(rdev->lldi.adapter_type)) 190 vma->vm_page_prot = 191 t4_pgprot_wc(vma->vm_page_prot); 192 else 193 vma->vm_page_prot = 194 pgprot_noncached(vma->vm_page_prot); 195 } 196 ret = io_remap_pfn_range(vma, vma->vm_start, 197 addr >> PAGE_SHIFT, 198 len, vma->vm_page_prot); 199 } else { 200 201 /* 202 * Map WQ or CQ contig dma memory... 203 */ 204 ret = remap_pfn_range(vma, vma->vm_start, 205 addr >> PAGE_SHIFT, 206 len, vma->vm_page_prot); 207 } 208 209 return ret; 210 } 211 212 static int c4iw_deallocate_pd(struct ib_pd *pd) 213 { 214 struct c4iw_dev *rhp; 215 struct c4iw_pd *php; 216 217 php = to_c4iw_pd(pd); 218 rhp = php->rhp; 219 pr_debug("ibpd %p pdid 0x%x\n", pd, php->pdid); 220 c4iw_put_resource(&rhp->rdev.resource.pdid_table, php->pdid); 221 mutex_lock(&rhp->rdev.stats.lock); 222 rhp->rdev.stats.pd.cur--; 223 mutex_unlock(&rhp->rdev.stats.lock); 224 kfree(php); 225 return 0; 226 } 227 228 static struct ib_pd *c4iw_allocate_pd(struct ib_device *ibdev, 229 struct ib_ucontext *context, 230 struct ib_udata *udata) 231 { 232 struct c4iw_pd *php; 233 u32 pdid; 234 struct c4iw_dev *rhp; 235 236 pr_debug("ibdev %p\n", ibdev); 237 rhp = (struct c4iw_dev *) ibdev; 238 pdid = c4iw_get_resource(&rhp->rdev.resource.pdid_table); 239 if (!pdid) 240 return ERR_PTR(-EINVAL); 241 php = kzalloc(sizeof(*php), GFP_KERNEL); 242 if (!php) { 243 c4iw_put_resource(&rhp->rdev.resource.pdid_table, pdid); 244 return ERR_PTR(-ENOMEM); 245 } 246 php->pdid = pdid; 247 php->rhp = rhp; 248 if (context) { 249 struct c4iw_alloc_pd_resp uresp = {.pdid = php->pdid}; 250 251 if (ib_copy_to_udata(udata, &uresp, sizeof(uresp))) { 252 c4iw_deallocate_pd(&php->ibpd); 253 return ERR_PTR(-EFAULT); 254 } 255 } 256 mutex_lock(&rhp->rdev.stats.lock); 257 rhp->rdev.stats.pd.cur++; 258 if (rhp->rdev.stats.pd.cur > rhp->rdev.stats.pd.max) 259 rhp->rdev.stats.pd.max = rhp->rdev.stats.pd.cur; 260 mutex_unlock(&rhp->rdev.stats.lock); 261 pr_debug("pdid 0x%0x ptr 0x%p\n", pdid, php); 262 return &php->ibpd; 263 } 264 265 static int c4iw_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 266 u16 *pkey) 267 { 268 pr_debug("ibdev %p\n", ibdev); 269 *pkey = 0; 270 return 0; 271 } 272 273 static int c4iw_query_gid(struct ib_device *ibdev, u8 port, int index, 274 union ib_gid *gid) 275 { 276 struct c4iw_dev *dev; 277 278 pr_debug("ibdev %p, port %d, index %d, gid %p\n", 279 ibdev, port, index, gid); 280 if (!port) 281 return -EINVAL; 282 dev = to_c4iw_dev(ibdev); 283 memset(&(gid->raw[0]), 0, sizeof(gid->raw)); 284 memcpy(&(gid->raw[0]), dev->rdev.lldi.ports[port-1]->dev_addr, 6); 285 return 0; 286 } 287 288 static int c4iw_query_device(struct ib_device *ibdev, struct ib_device_attr *props, 289 struct ib_udata *uhw) 290 { 291 292 struct c4iw_dev *dev; 293 294 pr_debug("ibdev %p\n", ibdev); 295 296 if (uhw->inlen || uhw->outlen) 297 return -EINVAL; 298 299 dev = to_c4iw_dev(ibdev); 300 memset(props, 0, sizeof *props); 301 memcpy(&props->sys_image_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 302 props->hw_ver = CHELSIO_CHIP_RELEASE(dev->rdev.lldi.adapter_type); 303 props->fw_ver = dev->rdev.lldi.fw_vers; 304 props->device_cap_flags = dev->device_cap_flags; 305 props->page_size_cap = T4_PAGESIZE_MASK; 306 props->vendor_id = (u32)dev->rdev.lldi.pdev->vendor; 307 props->vendor_part_id = (u32)dev->rdev.lldi.pdev->device; 308 props->max_mr_size = T4_MAX_MR_SIZE; 309 props->max_qp = dev->rdev.lldi.vr->qp.size / 2; 310 props->max_srq = dev->rdev.lldi.vr->srq.size; 311 props->max_qp_wr = dev->rdev.hw_queue.t4_max_qp_depth; 312 props->max_srq_wr = dev->rdev.hw_queue.t4_max_qp_depth; 313 props->max_send_sge = min(T4_MAX_SEND_SGE, T4_MAX_WRITE_SGE); 314 props->max_recv_sge = T4_MAX_RECV_SGE; 315 props->max_srq_sge = T4_MAX_RECV_SGE; 316 props->max_sge_rd = 1; 317 props->max_res_rd_atom = dev->rdev.lldi.max_ird_adapter; 318 props->max_qp_rd_atom = min(dev->rdev.lldi.max_ordird_qp, 319 c4iw_max_read_depth); 320 props->max_qp_init_rd_atom = props->max_qp_rd_atom; 321 props->max_cq = dev->rdev.lldi.vr->qp.size; 322 props->max_cqe = dev->rdev.hw_queue.t4_max_cq_depth; 323 props->max_mr = c4iw_num_stags(&dev->rdev); 324 props->max_pd = T4_MAX_NUM_PD; 325 props->local_ca_ack_delay = 0; 326 props->max_fast_reg_page_list_len = 327 t4_max_fr_depth(dev->rdev.lldi.ulptx_memwrite_dsgl && use_dsgl); 328 329 return 0; 330 } 331 332 static int c4iw_query_port(struct ib_device *ibdev, u8 port, 333 struct ib_port_attr *props) 334 { 335 struct c4iw_dev *dev; 336 struct net_device *netdev; 337 struct in_device *inetdev; 338 339 pr_debug("ibdev %p\n", ibdev); 340 341 dev = to_c4iw_dev(ibdev); 342 netdev = dev->rdev.lldi.ports[port-1]; 343 /* props being zeroed by the caller, avoid zeroing it here */ 344 props->max_mtu = IB_MTU_4096; 345 props->active_mtu = ib_mtu_int_to_enum(netdev->mtu); 346 347 if (!netif_carrier_ok(netdev)) 348 props->state = IB_PORT_DOWN; 349 else { 350 inetdev = in_dev_get(netdev); 351 if (inetdev) { 352 if (inetdev->ifa_list) 353 props->state = IB_PORT_ACTIVE; 354 else 355 props->state = IB_PORT_INIT; 356 in_dev_put(inetdev); 357 } else 358 props->state = IB_PORT_INIT; 359 } 360 361 props->port_cap_flags = 362 IB_PORT_CM_SUP | 363 IB_PORT_SNMP_TUNNEL_SUP | 364 IB_PORT_REINIT_SUP | 365 IB_PORT_DEVICE_MGMT_SUP | 366 IB_PORT_VENDOR_CLASS_SUP | IB_PORT_BOOT_MGMT_SUP; 367 props->gid_tbl_len = 1; 368 props->pkey_tbl_len = 1; 369 props->active_width = 2; 370 props->active_speed = IB_SPEED_DDR; 371 props->max_msg_sz = -1; 372 373 return 0; 374 } 375 376 static ssize_t show_rev(struct device *dev, struct device_attribute *attr, 377 char *buf) 378 { 379 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 380 ibdev.dev); 381 pr_debug("dev 0x%p\n", dev); 382 return sprintf(buf, "%d\n", 383 CHELSIO_CHIP_RELEASE(c4iw_dev->rdev.lldi.adapter_type)); 384 } 385 386 static ssize_t show_hca(struct device *dev, struct device_attribute *attr, 387 char *buf) 388 { 389 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 390 ibdev.dev); 391 struct ethtool_drvinfo info; 392 struct net_device *lldev = c4iw_dev->rdev.lldi.ports[0]; 393 394 pr_debug("dev 0x%p\n", dev); 395 lldev->ethtool_ops->get_drvinfo(lldev, &info); 396 return sprintf(buf, "%s\n", info.driver); 397 } 398 399 static ssize_t show_board(struct device *dev, struct device_attribute *attr, 400 char *buf) 401 { 402 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 403 ibdev.dev); 404 pr_debug("dev 0x%p\n", dev); 405 return sprintf(buf, "%x.%x\n", c4iw_dev->rdev.lldi.pdev->vendor, 406 c4iw_dev->rdev.lldi.pdev->device); 407 } 408 409 enum counters { 410 IP4INSEGS, 411 IP4OUTSEGS, 412 IP4RETRANSSEGS, 413 IP4OUTRSTS, 414 IP6INSEGS, 415 IP6OUTSEGS, 416 IP6RETRANSSEGS, 417 IP6OUTRSTS, 418 NR_COUNTERS 419 }; 420 421 static const char * const names[] = { 422 [IP4INSEGS] = "ip4InSegs", 423 [IP4OUTSEGS] = "ip4OutSegs", 424 [IP4RETRANSSEGS] = "ip4RetransSegs", 425 [IP4OUTRSTS] = "ip4OutRsts", 426 [IP6INSEGS] = "ip6InSegs", 427 [IP6OUTSEGS] = "ip6OutSegs", 428 [IP6RETRANSSEGS] = "ip6RetransSegs", 429 [IP6OUTRSTS] = "ip6OutRsts" 430 }; 431 432 static struct rdma_hw_stats *c4iw_alloc_stats(struct ib_device *ibdev, 433 u8 port_num) 434 { 435 BUILD_BUG_ON(ARRAY_SIZE(names) != NR_COUNTERS); 436 437 if (port_num != 0) 438 return NULL; 439 440 return rdma_alloc_hw_stats_struct(names, NR_COUNTERS, 441 RDMA_HW_STATS_DEFAULT_LIFESPAN); 442 } 443 444 static int c4iw_get_mib(struct ib_device *ibdev, 445 struct rdma_hw_stats *stats, 446 u8 port, int index) 447 { 448 struct tp_tcp_stats v4, v6; 449 struct c4iw_dev *c4iw_dev = to_c4iw_dev(ibdev); 450 451 cxgb4_get_tcp_stats(c4iw_dev->rdev.lldi.pdev, &v4, &v6); 452 stats->value[IP4INSEGS] = v4.tcp_in_segs; 453 stats->value[IP4OUTSEGS] = v4.tcp_out_segs; 454 stats->value[IP4RETRANSSEGS] = v4.tcp_retrans_segs; 455 stats->value[IP4OUTRSTS] = v4.tcp_out_rsts; 456 stats->value[IP6INSEGS] = v6.tcp_in_segs; 457 stats->value[IP6OUTSEGS] = v6.tcp_out_segs; 458 stats->value[IP6RETRANSSEGS] = v6.tcp_retrans_segs; 459 stats->value[IP6OUTRSTS] = v6.tcp_out_rsts; 460 461 return stats->num_counters; 462 } 463 464 static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 465 static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 466 static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 467 468 static struct device_attribute *c4iw_class_attributes[] = { 469 &dev_attr_hw_rev, 470 &dev_attr_hca_type, 471 &dev_attr_board_id, 472 }; 473 474 static int c4iw_port_immutable(struct ib_device *ibdev, u8 port_num, 475 struct ib_port_immutable *immutable) 476 { 477 struct ib_port_attr attr; 478 int err; 479 480 immutable->core_cap_flags = RDMA_CORE_PORT_IWARP; 481 482 err = ib_query_port(ibdev, port_num, &attr); 483 if (err) 484 return err; 485 486 immutable->pkey_tbl_len = attr.pkey_tbl_len; 487 immutable->gid_tbl_len = attr.gid_tbl_len; 488 489 return 0; 490 } 491 492 static void get_dev_fw_str(struct ib_device *dev, char *str) 493 { 494 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, 495 ibdev); 496 pr_debug("dev 0x%p\n", dev); 497 498 snprintf(str, IB_FW_VERSION_NAME_MAX, "%u.%u.%u.%u", 499 FW_HDR_FW_VER_MAJOR_G(c4iw_dev->rdev.lldi.fw_vers), 500 FW_HDR_FW_VER_MINOR_G(c4iw_dev->rdev.lldi.fw_vers), 501 FW_HDR_FW_VER_MICRO_G(c4iw_dev->rdev.lldi.fw_vers), 502 FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers)); 503 } 504 505 static struct net_device *get_netdev(struct ib_device *dev, u8 port) 506 { 507 struct c4iw_dev *c4iw_dev = container_of(dev, struct c4iw_dev, ibdev); 508 struct c4iw_rdev *rdev = &c4iw_dev->rdev; 509 struct net_device *ndev; 510 511 if (!port || port > rdev->lldi.nports) 512 return NULL; 513 514 rcu_read_lock(); 515 ndev = rdev->lldi.ports[port - 1]; 516 if (ndev) 517 dev_hold(ndev); 518 rcu_read_unlock(); 519 520 return ndev; 521 } 522 523 static int fill_res_entry(struct sk_buff *msg, struct rdma_restrack_entry *res) 524 { 525 return (res->type < ARRAY_SIZE(c4iw_restrack_funcs) && 526 c4iw_restrack_funcs[res->type]) ? 527 c4iw_restrack_funcs[res->type](msg, res) : 0; 528 } 529 530 void c4iw_register_device(struct work_struct *work) 531 { 532 int ret; 533 int i; 534 struct uld_ctx *ctx = container_of(work, struct uld_ctx, reg_work); 535 struct c4iw_dev *dev = ctx->dev; 536 537 pr_debug("c4iw_dev %p\n", dev); 538 strlcpy(dev->ibdev.name, "cxgb4_%d", IB_DEVICE_NAME_MAX); 539 memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid)); 540 memcpy(&dev->ibdev.node_guid, dev->rdev.lldi.ports[0]->dev_addr, 6); 541 dev->ibdev.owner = THIS_MODULE; 542 dev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY | IB_DEVICE_MEM_WINDOW; 543 if (fastreg_support) 544 dev->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; 545 dev->ibdev.local_dma_lkey = 0; 546 dev->ibdev.uverbs_cmd_mask = 547 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 548 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 549 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 550 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 551 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 552 (1ull << IB_USER_VERBS_CMD_REG_MR) | 553 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 554 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 555 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 556 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 557 (1ull << IB_USER_VERBS_CMD_REQ_NOTIFY_CQ) | 558 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 559 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 560 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 561 (1ull << IB_USER_VERBS_CMD_POLL_CQ) | 562 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 563 (1ull << IB_USER_VERBS_CMD_POST_SEND) | 564 (1ull << IB_USER_VERBS_CMD_POST_RECV) | 565 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 566 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 567 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 568 dev->ibdev.node_type = RDMA_NODE_RNIC; 569 BUILD_BUG_ON(sizeof(C4IW_NODE_DESC) > IB_DEVICE_NODE_DESC_MAX); 570 memcpy(dev->ibdev.node_desc, C4IW_NODE_DESC, sizeof(C4IW_NODE_DESC)); 571 dev->ibdev.phys_port_cnt = dev->rdev.lldi.nports; 572 dev->ibdev.num_comp_vectors = dev->rdev.lldi.nciq; 573 dev->ibdev.dev.parent = &dev->rdev.lldi.pdev->dev; 574 dev->ibdev.query_device = c4iw_query_device; 575 dev->ibdev.query_port = c4iw_query_port; 576 dev->ibdev.query_pkey = c4iw_query_pkey; 577 dev->ibdev.query_gid = c4iw_query_gid; 578 dev->ibdev.alloc_ucontext = c4iw_alloc_ucontext; 579 dev->ibdev.dealloc_ucontext = c4iw_dealloc_ucontext; 580 dev->ibdev.mmap = c4iw_mmap; 581 dev->ibdev.alloc_pd = c4iw_allocate_pd; 582 dev->ibdev.dealloc_pd = c4iw_deallocate_pd; 583 dev->ibdev.create_qp = c4iw_create_qp; 584 dev->ibdev.modify_qp = c4iw_ib_modify_qp; 585 dev->ibdev.query_qp = c4iw_ib_query_qp; 586 dev->ibdev.destroy_qp = c4iw_destroy_qp; 587 dev->ibdev.create_srq = c4iw_create_srq; 588 dev->ibdev.modify_srq = c4iw_modify_srq; 589 dev->ibdev.destroy_srq = c4iw_destroy_srq; 590 dev->ibdev.create_cq = c4iw_create_cq; 591 dev->ibdev.destroy_cq = c4iw_destroy_cq; 592 dev->ibdev.poll_cq = c4iw_poll_cq; 593 dev->ibdev.get_dma_mr = c4iw_get_dma_mr; 594 dev->ibdev.reg_user_mr = c4iw_reg_user_mr; 595 dev->ibdev.dereg_mr = c4iw_dereg_mr; 596 dev->ibdev.alloc_mw = c4iw_alloc_mw; 597 dev->ibdev.dealloc_mw = c4iw_dealloc_mw; 598 dev->ibdev.alloc_mr = c4iw_alloc_mr; 599 dev->ibdev.map_mr_sg = c4iw_map_mr_sg; 600 dev->ibdev.req_notify_cq = c4iw_arm_cq; 601 dev->ibdev.post_send = c4iw_post_send; 602 dev->ibdev.post_recv = c4iw_post_receive; 603 dev->ibdev.post_srq_recv = c4iw_post_srq_recv; 604 dev->ibdev.alloc_hw_stats = c4iw_alloc_stats; 605 dev->ibdev.get_hw_stats = c4iw_get_mib; 606 dev->ibdev.uverbs_abi_ver = C4IW_UVERBS_ABI_VERSION; 607 dev->ibdev.get_port_immutable = c4iw_port_immutable; 608 dev->ibdev.get_dev_fw_str = get_dev_fw_str; 609 dev->ibdev.get_netdev = get_netdev; 610 611 dev->ibdev.iwcm = kmalloc(sizeof(struct iw_cm_verbs), GFP_KERNEL); 612 if (!dev->ibdev.iwcm) { 613 ret = -ENOMEM; 614 goto err_dealloc_ctx; 615 } 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 dev->ibdev.res.fill_res_entry = fill_res_entry; 626 memcpy(dev->ibdev.iwcm->ifname, dev->rdev.lldi.ports[0]->name, 627 sizeof(dev->ibdev.iwcm->ifname)); 628 629 dev->ibdev.driver_id = RDMA_DRIVER_CXGB4; 630 ret = ib_register_device(&dev->ibdev, NULL); 631 if (ret) 632 goto err_kfree_iwcm; 633 634 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) { 635 ret = device_create_file(&dev->ibdev.dev, 636 c4iw_class_attributes[i]); 637 if (ret) 638 goto err_unregister_device; 639 } 640 return; 641 err_unregister_device: 642 ib_unregister_device(&dev->ibdev); 643 err_kfree_iwcm: 644 kfree(dev->ibdev.iwcm); 645 err_dealloc_ctx: 646 pr_err("%s - Failed registering iwarp device: %d\n", 647 pci_name(ctx->lldi.pdev), ret); 648 c4iw_dealloc(ctx); 649 return; 650 } 651 652 void c4iw_unregister_device(struct c4iw_dev *dev) 653 { 654 int i; 655 656 pr_debug("c4iw_dev %p\n", dev); 657 for (i = 0; i < ARRAY_SIZE(c4iw_class_attributes); ++i) 658 device_remove_file(&dev->ibdev.dev, 659 c4iw_class_attributes[i]); 660 ib_unregister_device(&dev->ibdev); 661 kfree(dev->ibdev.iwcm); 662 return; 663 } 664