1 /* 2 * Copyright (c) 2006, 2007 Cisco Systems, 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 33 #include <linux/module.h> 34 #include <linux/init.h> 35 #include <linux/errno.h> 36 37 #include <rdma/ib_smi.h> 38 #include <rdma/ib_user_verbs.h> 39 40 #include <linux/mlx4/driver.h> 41 #include <linux/mlx4/cmd.h> 42 43 #include "mlx4_ib.h" 44 #include "user.h" 45 46 #define DRV_NAME "mlx4_ib" 47 #define DRV_VERSION "1.0" 48 #define DRV_RELDATE "April 4, 2008" 49 50 MODULE_AUTHOR("Roland Dreier"); 51 MODULE_DESCRIPTION("Mellanox ConnectX HCA InfiniBand driver"); 52 MODULE_LICENSE("Dual BSD/GPL"); 53 MODULE_VERSION(DRV_VERSION); 54 55 static const char mlx4_ib_version[] = 56 DRV_NAME ": Mellanox ConnectX InfiniBand driver v" 57 DRV_VERSION " (" DRV_RELDATE ")\n"; 58 59 static void init_query_mad(struct ib_smp *mad) 60 { 61 mad->base_version = 1; 62 mad->mgmt_class = IB_MGMT_CLASS_SUBN_LID_ROUTED; 63 mad->class_version = 1; 64 mad->method = IB_MGMT_METHOD_GET; 65 } 66 67 static int mlx4_ib_query_device(struct ib_device *ibdev, 68 struct ib_device_attr *props) 69 { 70 struct mlx4_ib_dev *dev = to_mdev(ibdev); 71 struct ib_smp *in_mad = NULL; 72 struct ib_smp *out_mad = NULL; 73 int err = -ENOMEM; 74 75 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 76 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 77 if (!in_mad || !out_mad) 78 goto out; 79 80 init_query_mad(in_mad); 81 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 82 83 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad); 84 if (err) 85 goto out; 86 87 memset(props, 0, sizeof *props); 88 89 props->fw_ver = dev->dev->caps.fw_ver; 90 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 91 IB_DEVICE_PORT_ACTIVE_EVENT | 92 IB_DEVICE_SYS_IMAGE_GUID | 93 IB_DEVICE_RC_RNR_NAK_GEN; 94 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_PKEY_CNTR) 95 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 96 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_BAD_QKEY_CNTR) 97 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 98 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_APM) 99 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 100 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_UD_AV_PORT) 101 props->device_cap_flags |= IB_DEVICE_UD_AV_PORT_ENFORCE; 102 if (dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_IPOIB_CSUM) 103 props->device_cap_flags |= IB_DEVICE_UD_IP_CSUM; 104 if (dev->dev->caps.max_gso_sz) 105 props->device_cap_flags |= IB_DEVICE_UD_TSO; 106 107 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 108 0xffffff; 109 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); 110 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); 111 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 112 113 props->max_mr_size = ~0ull; 114 props->page_size_cap = dev->dev->caps.page_size_cap; 115 props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps; 116 props->max_qp_wr = dev->dev->caps.max_wqes; 117 props->max_sge = min(dev->dev->caps.max_sq_sg, 118 dev->dev->caps.max_rq_sg); 119 props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs; 120 props->max_cqe = dev->dev->caps.max_cqes; 121 props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws; 122 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; 123 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; 124 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; 125 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 126 props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs; 127 props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; 128 props->max_srq_sge = dev->dev->caps.max_srq_sge; 129 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; 130 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? 131 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 132 props->max_pkeys = dev->dev->caps.pkey_table_len[1]; 133 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; 134 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; 135 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 136 props->max_mcast_grp; 137 props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1; 138 139 out: 140 kfree(in_mad); 141 kfree(out_mad); 142 143 return err; 144 } 145 146 static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, 147 struct ib_port_attr *props) 148 { 149 struct ib_smp *in_mad = NULL; 150 struct ib_smp *out_mad = NULL; 151 int err = -ENOMEM; 152 153 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 154 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 155 if (!in_mad || !out_mad) 156 goto out; 157 158 memset(props, 0, sizeof *props); 159 160 init_query_mad(in_mad); 161 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 162 in_mad->attr_mod = cpu_to_be32(port); 163 164 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 165 if (err) 166 goto out; 167 168 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 169 props->lmc = out_mad->data[34] & 0x7; 170 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 171 props->sm_sl = out_mad->data[36] & 0xf; 172 props->state = out_mad->data[32] & 0xf; 173 props->phys_state = out_mad->data[33] >> 4; 174 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 175 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; 176 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; 177 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; 178 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 179 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 180 props->active_width = out_mad->data[31] & 0xf; 181 props->active_speed = out_mad->data[35] >> 4; 182 props->max_mtu = out_mad->data[41] & 0xf; 183 props->active_mtu = out_mad->data[36] >> 4; 184 props->subnet_timeout = out_mad->data[51] & 0x1f; 185 props->max_vl_num = out_mad->data[37] >> 4; 186 props->init_type_reply = out_mad->data[41] >> 4; 187 188 out: 189 kfree(in_mad); 190 kfree(out_mad); 191 192 return err; 193 } 194 195 static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, 196 union ib_gid *gid) 197 { 198 struct ib_smp *in_mad = NULL; 199 struct ib_smp *out_mad = NULL; 200 int err = -ENOMEM; 201 202 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 203 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 204 if (!in_mad || !out_mad) 205 goto out; 206 207 init_query_mad(in_mad); 208 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 209 in_mad->attr_mod = cpu_to_be32(port); 210 211 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 212 if (err) 213 goto out; 214 215 memcpy(gid->raw, out_mad->data + 8, 8); 216 217 init_query_mad(in_mad); 218 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 219 in_mad->attr_mod = cpu_to_be32(index / 8); 220 221 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 222 if (err) 223 goto out; 224 225 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 226 227 out: 228 kfree(in_mad); 229 kfree(out_mad); 230 return err; 231 } 232 233 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 234 u16 *pkey) 235 { 236 struct ib_smp *in_mad = NULL; 237 struct ib_smp *out_mad = NULL; 238 int err = -ENOMEM; 239 240 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 241 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 242 if (!in_mad || !out_mad) 243 goto out; 244 245 init_query_mad(in_mad); 246 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 247 in_mad->attr_mod = cpu_to_be32(index / 32); 248 249 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 250 if (err) 251 goto out; 252 253 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 254 255 out: 256 kfree(in_mad); 257 kfree(out_mad); 258 return err; 259 } 260 261 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, 262 struct ib_device_modify *props) 263 { 264 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 265 return -EOPNOTSUPP; 266 267 if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 268 spin_lock(&to_mdev(ibdev)->sm_lock); 269 memcpy(ibdev->node_desc, props->node_desc, 64); 270 spin_unlock(&to_mdev(ibdev)->sm_lock); 271 } 272 273 return 0; 274 } 275 276 static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, 277 u32 cap_mask) 278 { 279 struct mlx4_cmd_mailbox *mailbox; 280 int err; 281 282 mailbox = mlx4_alloc_cmd_mailbox(dev->dev); 283 if (IS_ERR(mailbox)) 284 return PTR_ERR(mailbox); 285 286 memset(mailbox->buf, 0, 256); 287 288 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { 289 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; 290 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); 291 } else { 292 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; 293 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); 294 } 295 296 err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT, 297 MLX4_CMD_TIME_CLASS_B); 298 299 mlx4_free_cmd_mailbox(dev->dev, mailbox); 300 return err; 301 } 302 303 static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, 304 struct ib_port_modify *props) 305 { 306 struct ib_port_attr attr; 307 u32 cap_mask; 308 int err; 309 310 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); 311 312 err = mlx4_ib_query_port(ibdev, port, &attr); 313 if (err) 314 goto out; 315 316 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 317 ~props->clr_port_cap_mask; 318 319 err = mlx4_SET_PORT(to_mdev(ibdev), port, 320 !!(mask & IB_PORT_RESET_QKEY_CNTR), 321 cap_mask); 322 323 out: 324 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 325 return err; 326 } 327 328 static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, 329 struct ib_udata *udata) 330 { 331 struct mlx4_ib_dev *dev = to_mdev(ibdev); 332 struct mlx4_ib_ucontext *context; 333 struct mlx4_ib_alloc_ucontext_resp resp; 334 int err; 335 336 resp.qp_tab_size = dev->dev->caps.num_qps; 337 resp.bf_reg_size = dev->dev->caps.bf_reg_size; 338 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; 339 340 context = kmalloc(sizeof *context, GFP_KERNEL); 341 if (!context) 342 return ERR_PTR(-ENOMEM); 343 344 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); 345 if (err) { 346 kfree(context); 347 return ERR_PTR(err); 348 } 349 350 INIT_LIST_HEAD(&context->db_page_list); 351 mutex_init(&context->db_page_mutex); 352 353 err = ib_copy_to_udata(udata, &resp, sizeof resp); 354 if (err) { 355 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); 356 kfree(context); 357 return ERR_PTR(-EFAULT); 358 } 359 360 return &context->ibucontext; 361 } 362 363 static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) 364 { 365 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); 366 367 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); 368 kfree(context); 369 370 return 0; 371 } 372 373 static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) 374 { 375 struct mlx4_ib_dev *dev = to_mdev(context->device); 376 377 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 378 return -EINVAL; 379 380 if (vma->vm_pgoff == 0) { 381 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 382 383 if (io_remap_pfn_range(vma, vma->vm_start, 384 to_mucontext(context)->uar.pfn, 385 PAGE_SIZE, vma->vm_page_prot)) 386 return -EAGAIN; 387 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) { 388 /* FIXME want pgprot_writecombine() for BlueFlame pages */ 389 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 390 391 if (io_remap_pfn_range(vma, vma->vm_start, 392 to_mucontext(context)->uar.pfn + 393 dev->dev->caps.num_uars, 394 PAGE_SIZE, vma->vm_page_prot)) 395 return -EAGAIN; 396 } else 397 return -EINVAL; 398 399 return 0; 400 } 401 402 static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, 403 struct ib_ucontext *context, 404 struct ib_udata *udata) 405 { 406 struct mlx4_ib_pd *pd; 407 int err; 408 409 pd = kmalloc(sizeof *pd, GFP_KERNEL); 410 if (!pd) 411 return ERR_PTR(-ENOMEM); 412 413 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); 414 if (err) { 415 kfree(pd); 416 return ERR_PTR(err); 417 } 418 419 if (context) 420 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { 421 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); 422 kfree(pd); 423 return ERR_PTR(-EFAULT); 424 } 425 426 return &pd->ibpd; 427 } 428 429 static int mlx4_ib_dealloc_pd(struct ib_pd *pd) 430 { 431 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); 432 kfree(pd); 433 434 return 0; 435 } 436 437 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 438 { 439 return mlx4_multicast_attach(to_mdev(ibqp->device)->dev, 440 &to_mqp(ibqp)->mqp, gid->raw); 441 } 442 443 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 444 { 445 return mlx4_multicast_detach(to_mdev(ibqp->device)->dev, 446 &to_mqp(ibqp)->mqp, gid->raw); 447 } 448 449 static int init_node_data(struct mlx4_ib_dev *dev) 450 { 451 struct ib_smp *in_mad = NULL; 452 struct ib_smp *out_mad = NULL; 453 int err = -ENOMEM; 454 455 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 456 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 457 if (!in_mad || !out_mad) 458 goto out; 459 460 init_query_mad(in_mad); 461 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 462 463 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 464 if (err) 465 goto out; 466 467 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 468 469 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 470 471 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 472 if (err) 473 goto out; 474 475 dev->dev->rev_id = be32_to_cpup((__be32 *) (out_mad->data + 32)); 476 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 477 478 out: 479 kfree(in_mad); 480 kfree(out_mad); 481 return err; 482 } 483 484 static ssize_t show_hca(struct class_device *cdev, char *buf) 485 { 486 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); 487 return sprintf(buf, "MT%d\n", dev->dev->pdev->device); 488 } 489 490 static ssize_t show_fw_ver(struct class_device *cdev, char *buf) 491 { 492 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); 493 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), 494 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, 495 (int) dev->dev->caps.fw_ver & 0xffff); 496 } 497 498 static ssize_t show_rev(struct class_device *cdev, char *buf) 499 { 500 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); 501 return sprintf(buf, "%x\n", dev->dev->rev_id); 502 } 503 504 static ssize_t show_board(struct class_device *cdev, char *buf) 505 { 506 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); 507 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, dev->dev->board_id); 508 } 509 510 static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 511 static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 512 static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 513 static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 514 515 static struct class_device_attribute *mlx4_class_attributes[] = { 516 &class_device_attr_hw_rev, 517 &class_device_attr_fw_ver, 518 &class_device_attr_hca_type, 519 &class_device_attr_board_id 520 }; 521 522 static void *mlx4_ib_add(struct mlx4_dev *dev) 523 { 524 static int mlx4_ib_version_printed; 525 struct mlx4_ib_dev *ibdev; 526 int i; 527 528 529 if (!mlx4_ib_version_printed) { 530 printk(KERN_INFO "%s", mlx4_ib_version); 531 ++mlx4_ib_version_printed; 532 } 533 534 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); 535 if (!ibdev) { 536 dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); 537 return NULL; 538 } 539 540 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) 541 goto err_dealloc; 542 543 if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) 544 goto err_pd; 545 546 ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 547 if (!ibdev->uar_map) 548 goto err_uar; 549 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); 550 551 INIT_LIST_HEAD(&ibdev->pgdir_list); 552 mutex_init(&ibdev->pgdir_mutex); 553 554 ibdev->dev = dev; 555 556 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); 557 ibdev->ib_dev.owner = THIS_MODULE; 558 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; 559 ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports; 560 ibdev->ib_dev.num_comp_vectors = 1; 561 ibdev->ib_dev.dma_device = &dev->pdev->dev; 562 563 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; 564 ibdev->ib_dev.uverbs_cmd_mask = 565 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 566 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 567 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 568 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 569 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 570 (1ull << IB_USER_VERBS_CMD_REG_MR) | 571 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 572 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 573 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 574 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 575 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 576 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 577 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 578 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 579 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 580 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 581 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | 582 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 583 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 584 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 585 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 586 587 ibdev->ib_dev.query_device = mlx4_ib_query_device; 588 ibdev->ib_dev.query_port = mlx4_ib_query_port; 589 ibdev->ib_dev.query_gid = mlx4_ib_query_gid; 590 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; 591 ibdev->ib_dev.modify_device = mlx4_ib_modify_device; 592 ibdev->ib_dev.modify_port = mlx4_ib_modify_port; 593 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; 594 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; 595 ibdev->ib_dev.mmap = mlx4_ib_mmap; 596 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; 597 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; 598 ibdev->ib_dev.create_ah = mlx4_ib_create_ah; 599 ibdev->ib_dev.query_ah = mlx4_ib_query_ah; 600 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; 601 ibdev->ib_dev.create_srq = mlx4_ib_create_srq; 602 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; 603 ibdev->ib_dev.query_srq = mlx4_ib_query_srq; 604 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; 605 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; 606 ibdev->ib_dev.create_qp = mlx4_ib_create_qp; 607 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; 608 ibdev->ib_dev.query_qp = mlx4_ib_query_qp; 609 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; 610 ibdev->ib_dev.post_send = mlx4_ib_post_send; 611 ibdev->ib_dev.post_recv = mlx4_ib_post_recv; 612 ibdev->ib_dev.create_cq = mlx4_ib_create_cq; 613 ibdev->ib_dev.modify_cq = mlx4_ib_modify_cq; 614 ibdev->ib_dev.resize_cq = mlx4_ib_resize_cq; 615 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; 616 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; 617 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; 618 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; 619 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; 620 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; 621 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; 622 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; 623 ibdev->ib_dev.process_mad = mlx4_ib_process_mad; 624 625 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; 626 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; 627 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; 628 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; 629 630 if (init_node_data(ibdev)) 631 goto err_map; 632 633 spin_lock_init(&ibdev->sm_lock); 634 mutex_init(&ibdev->cap_mask_mutex); 635 636 if (ib_register_device(&ibdev->ib_dev)) 637 goto err_map; 638 639 if (mlx4_ib_mad_init(ibdev)) 640 goto err_reg; 641 642 for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) { 643 if (class_device_create_file(&ibdev->ib_dev.class_dev, 644 mlx4_class_attributes[i])) 645 goto err_reg; 646 } 647 648 return ibdev; 649 650 err_reg: 651 ib_unregister_device(&ibdev->ib_dev); 652 653 err_map: 654 iounmap(ibdev->uar_map); 655 656 err_uar: 657 mlx4_uar_free(dev, &ibdev->priv_uar); 658 659 err_pd: 660 mlx4_pd_free(dev, ibdev->priv_pdn); 661 662 err_dealloc: 663 ib_dealloc_device(&ibdev->ib_dev); 664 665 return NULL; 666 } 667 668 static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) 669 { 670 struct mlx4_ib_dev *ibdev = ibdev_ptr; 671 int p; 672 673 for (p = 1; p <= dev->caps.num_ports; ++p) 674 mlx4_CLOSE_PORT(dev, p); 675 676 mlx4_ib_mad_cleanup(ibdev); 677 ib_unregister_device(&ibdev->ib_dev); 678 iounmap(ibdev->uar_map); 679 mlx4_uar_free(dev, &ibdev->priv_uar); 680 mlx4_pd_free(dev, ibdev->priv_pdn); 681 ib_dealloc_device(&ibdev->ib_dev); 682 } 683 684 static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, 685 enum mlx4_dev_event event, int port) 686 { 687 struct ib_event ibev; 688 689 switch (event) { 690 case MLX4_DEV_EVENT_PORT_UP: 691 ibev.event = IB_EVENT_PORT_ACTIVE; 692 break; 693 694 case MLX4_DEV_EVENT_PORT_DOWN: 695 ibev.event = IB_EVENT_PORT_ERR; 696 break; 697 698 case MLX4_DEV_EVENT_CATASTROPHIC_ERROR: 699 ibev.event = IB_EVENT_DEVICE_FATAL; 700 break; 701 702 default: 703 return; 704 } 705 706 ibev.device = ibdev_ptr; 707 ibev.element.port_num = port; 708 709 ib_dispatch_event(&ibev); 710 } 711 712 static struct mlx4_interface mlx4_ib_interface = { 713 .add = mlx4_ib_add, 714 .remove = mlx4_ib_remove, 715 .event = mlx4_ib_event 716 }; 717 718 static int __init mlx4_ib_init(void) 719 { 720 return mlx4_register_interface(&mlx4_ib_interface); 721 } 722 723 static void __exit mlx4_ib_cleanup(void) 724 { 725 mlx4_unregister_interface(&mlx4_ib_interface); 726 } 727 728 module_init(mlx4_ib_init); 729 module_exit(mlx4_ib_cleanup); 730