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 "0.01" 48 #define DRV_RELDATE "May 1, 2006" 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[] __devinitdata = 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; 102 103 props->vendor_id = be32_to_cpup((__be32 *) (out_mad->data + 36)) & 104 0xffffff; 105 props->vendor_part_id = be16_to_cpup((__be16 *) (out_mad->data + 30)); 106 props->hw_ver = be32_to_cpup((__be32 *) (out_mad->data + 32)); 107 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 108 109 props->max_mr_size = ~0ull; 110 props->page_size_cap = dev->dev->caps.page_size_cap; 111 props->max_qp = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps; 112 props->max_qp_wr = dev->dev->caps.max_wqes; 113 props->max_sge = min(dev->dev->caps.max_sq_sg, 114 dev->dev->caps.max_rq_sg); 115 props->max_cq = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs; 116 props->max_cqe = dev->dev->caps.max_cqes; 117 props->max_mr = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws; 118 props->max_pd = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds; 119 props->max_qp_rd_atom = dev->dev->caps.max_qp_dest_rdma; 120 props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma; 121 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 122 props->max_srq = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs; 123 props->max_srq_wr = dev->dev->caps.max_srq_wqes - 1; 124 props->max_srq_sge = dev->dev->caps.max_srq_sge; 125 props->local_ca_ack_delay = dev->dev->caps.local_ca_ack_delay; 126 props->atomic_cap = dev->dev->caps.flags & MLX4_DEV_CAP_FLAG_ATOMIC ? 127 IB_ATOMIC_HCA : IB_ATOMIC_NONE; 128 props->max_pkeys = dev->dev->caps.pkey_table_len[1]; 129 props->max_mcast_grp = dev->dev->caps.num_mgms + dev->dev->caps.num_amgms; 130 props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm; 131 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 132 props->max_mcast_grp; 133 props->max_map_per_fmr = (1 << (32 - ilog2(dev->dev->caps.num_mpts))) - 1; 134 135 out: 136 kfree(in_mad); 137 kfree(out_mad); 138 139 return err; 140 } 141 142 static int mlx4_ib_query_port(struct ib_device *ibdev, u8 port, 143 struct ib_port_attr *props) 144 { 145 struct ib_smp *in_mad = NULL; 146 struct ib_smp *out_mad = NULL; 147 int err = -ENOMEM; 148 149 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 150 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 151 if (!in_mad || !out_mad) 152 goto out; 153 154 memset(props, 0, sizeof *props); 155 156 init_query_mad(in_mad); 157 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 158 in_mad->attr_mod = cpu_to_be32(port); 159 160 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 161 if (err) 162 goto out; 163 164 props->lid = be16_to_cpup((__be16 *) (out_mad->data + 16)); 165 props->lmc = out_mad->data[34] & 0x7; 166 props->sm_lid = be16_to_cpup((__be16 *) (out_mad->data + 18)); 167 props->sm_sl = out_mad->data[36] & 0xf; 168 props->state = out_mad->data[32] & 0xf; 169 props->phys_state = out_mad->data[33] >> 4; 170 props->port_cap_flags = be32_to_cpup((__be32 *) (out_mad->data + 20)); 171 props->gid_tbl_len = to_mdev(ibdev)->dev->caps.gid_table_len[port]; 172 props->max_msg_sz = to_mdev(ibdev)->dev->caps.max_msg_sz; 173 props->pkey_tbl_len = to_mdev(ibdev)->dev->caps.pkey_table_len[port]; 174 props->bad_pkey_cntr = be16_to_cpup((__be16 *) (out_mad->data + 46)); 175 props->qkey_viol_cntr = be16_to_cpup((__be16 *) (out_mad->data + 48)); 176 props->active_width = out_mad->data[31] & 0xf; 177 props->active_speed = out_mad->data[35] >> 4; 178 props->max_mtu = out_mad->data[41] & 0xf; 179 props->active_mtu = out_mad->data[36] >> 4; 180 props->subnet_timeout = out_mad->data[51] & 0x1f; 181 props->max_vl_num = out_mad->data[37] >> 4; 182 props->init_type_reply = out_mad->data[41] >> 4; 183 184 out: 185 kfree(in_mad); 186 kfree(out_mad); 187 188 return err; 189 } 190 191 static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index, 192 union ib_gid *gid) 193 { 194 struct ib_smp *in_mad = NULL; 195 struct ib_smp *out_mad = NULL; 196 int err = -ENOMEM; 197 198 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 199 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 200 if (!in_mad || !out_mad) 201 goto out; 202 203 init_query_mad(in_mad); 204 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 205 in_mad->attr_mod = cpu_to_be32(port); 206 207 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 208 if (err) 209 goto out; 210 211 memcpy(gid->raw, out_mad->data + 8, 8); 212 213 init_query_mad(in_mad); 214 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 215 in_mad->attr_mod = cpu_to_be32(index / 8); 216 217 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 218 if (err) 219 goto out; 220 221 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 222 223 out: 224 kfree(in_mad); 225 kfree(out_mad); 226 return err; 227 } 228 229 static int mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 230 u16 *pkey) 231 { 232 struct ib_smp *in_mad = NULL; 233 struct ib_smp *out_mad = NULL; 234 int err = -ENOMEM; 235 236 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 237 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 238 if (!in_mad || !out_mad) 239 goto out; 240 241 init_query_mad(in_mad); 242 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 243 in_mad->attr_mod = cpu_to_be32(index / 32); 244 245 err = mlx4_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 246 if (err) 247 goto out; 248 249 *pkey = be16_to_cpu(((__be16 *) out_mad->data)[index % 32]); 250 251 out: 252 kfree(in_mad); 253 kfree(out_mad); 254 return err; 255 } 256 257 static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask, 258 struct ib_device_modify *props) 259 { 260 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 261 return -EOPNOTSUPP; 262 263 if (mask & IB_DEVICE_MODIFY_NODE_DESC) { 264 spin_lock(&to_mdev(ibdev)->sm_lock); 265 memcpy(ibdev->node_desc, props->node_desc, 64); 266 spin_unlock(&to_mdev(ibdev)->sm_lock); 267 } 268 269 return 0; 270 } 271 272 static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols, 273 u32 cap_mask) 274 { 275 struct mlx4_cmd_mailbox *mailbox; 276 int err; 277 278 mailbox = mlx4_alloc_cmd_mailbox(dev->dev); 279 if (IS_ERR(mailbox)) 280 return PTR_ERR(mailbox); 281 282 memset(mailbox->buf, 0, 256); 283 284 if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) { 285 *(u8 *) mailbox->buf = !!reset_qkey_viols << 6; 286 ((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask); 287 } else { 288 ((u8 *) mailbox->buf)[3] = !!reset_qkey_viols; 289 ((__be32 *) mailbox->buf)[1] = cpu_to_be32(cap_mask); 290 } 291 292 err = mlx4_cmd(dev->dev, mailbox->dma, port, 0, MLX4_CMD_SET_PORT, 293 MLX4_CMD_TIME_CLASS_B); 294 295 mlx4_free_cmd_mailbox(dev->dev, mailbox); 296 return err; 297 } 298 299 static int mlx4_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, 300 struct ib_port_modify *props) 301 { 302 struct ib_port_attr attr; 303 u32 cap_mask; 304 int err; 305 306 mutex_lock(&to_mdev(ibdev)->cap_mask_mutex); 307 308 err = mlx4_ib_query_port(ibdev, port, &attr); 309 if (err) 310 goto out; 311 312 cap_mask = (attr.port_cap_flags | props->set_port_cap_mask) & 313 ~props->clr_port_cap_mask; 314 315 err = mlx4_SET_PORT(to_mdev(ibdev), port, 316 !!(mask & IB_PORT_RESET_QKEY_CNTR), 317 cap_mask); 318 319 out: 320 mutex_unlock(&to_mdev(ibdev)->cap_mask_mutex); 321 return err; 322 } 323 324 static struct ib_ucontext *mlx4_ib_alloc_ucontext(struct ib_device *ibdev, 325 struct ib_udata *udata) 326 { 327 struct mlx4_ib_dev *dev = to_mdev(ibdev); 328 struct mlx4_ib_ucontext *context; 329 struct mlx4_ib_alloc_ucontext_resp resp; 330 int err; 331 332 resp.qp_tab_size = dev->dev->caps.num_qps; 333 resp.bf_reg_size = dev->dev->caps.bf_reg_size; 334 resp.bf_regs_per_page = dev->dev->caps.bf_regs_per_page; 335 336 context = kmalloc(sizeof *context, GFP_KERNEL); 337 if (!context) 338 return ERR_PTR(-ENOMEM); 339 340 err = mlx4_uar_alloc(to_mdev(ibdev)->dev, &context->uar); 341 if (err) { 342 kfree(context); 343 return ERR_PTR(err); 344 } 345 346 INIT_LIST_HEAD(&context->db_page_list); 347 mutex_init(&context->db_page_mutex); 348 349 err = ib_copy_to_udata(udata, &resp, sizeof resp); 350 if (err) { 351 mlx4_uar_free(to_mdev(ibdev)->dev, &context->uar); 352 kfree(context); 353 return ERR_PTR(-EFAULT); 354 } 355 356 return &context->ibucontext; 357 } 358 359 static int mlx4_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) 360 { 361 struct mlx4_ib_ucontext *context = to_mucontext(ibcontext); 362 363 mlx4_uar_free(to_mdev(ibcontext->device)->dev, &context->uar); 364 kfree(context); 365 366 return 0; 367 } 368 369 static int mlx4_ib_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) 370 { 371 struct mlx4_ib_dev *dev = to_mdev(context->device); 372 373 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 374 return -EINVAL; 375 376 if (vma->vm_pgoff == 0) { 377 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 378 379 if (io_remap_pfn_range(vma, vma->vm_start, 380 to_mucontext(context)->uar.pfn, 381 PAGE_SIZE, vma->vm_page_prot)) 382 return -EAGAIN; 383 } else if (vma->vm_pgoff == 1 && dev->dev->caps.bf_reg_size != 0) { 384 /* FIXME want pgprot_writecombine() for BlueFlame pages */ 385 vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); 386 387 if (io_remap_pfn_range(vma, vma->vm_start, 388 to_mucontext(context)->uar.pfn + 389 dev->dev->caps.num_uars, 390 PAGE_SIZE, vma->vm_page_prot)) 391 return -EAGAIN; 392 } else 393 return -EINVAL; 394 395 return 0; 396 } 397 398 static struct ib_pd *mlx4_ib_alloc_pd(struct ib_device *ibdev, 399 struct ib_ucontext *context, 400 struct ib_udata *udata) 401 { 402 struct mlx4_ib_pd *pd; 403 int err; 404 405 pd = kmalloc(sizeof *pd, GFP_KERNEL); 406 if (!pd) 407 return ERR_PTR(-ENOMEM); 408 409 err = mlx4_pd_alloc(to_mdev(ibdev)->dev, &pd->pdn); 410 if (err) { 411 kfree(pd); 412 return ERR_PTR(err); 413 } 414 415 if (context) 416 if (ib_copy_to_udata(udata, &pd->pdn, sizeof (__u32))) { 417 mlx4_pd_free(to_mdev(ibdev)->dev, pd->pdn); 418 kfree(pd); 419 return ERR_PTR(-EFAULT); 420 } 421 422 return &pd->ibpd; 423 } 424 425 static int mlx4_ib_dealloc_pd(struct ib_pd *pd) 426 { 427 mlx4_pd_free(to_mdev(pd->device)->dev, to_mpd(pd)->pdn); 428 kfree(pd); 429 430 return 0; 431 } 432 433 static int mlx4_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 434 { 435 return mlx4_multicast_attach(to_mdev(ibqp->device)->dev, 436 &to_mqp(ibqp)->mqp, gid->raw); 437 } 438 439 static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 440 { 441 return mlx4_multicast_detach(to_mdev(ibqp->device)->dev, 442 &to_mqp(ibqp)->mqp, gid->raw); 443 } 444 445 static int init_node_data(struct mlx4_ib_dev *dev) 446 { 447 struct ib_smp *in_mad = NULL; 448 struct ib_smp *out_mad = NULL; 449 int err = -ENOMEM; 450 451 in_mad = kzalloc(sizeof *in_mad, GFP_KERNEL); 452 out_mad = kmalloc(sizeof *out_mad, GFP_KERNEL); 453 if (!in_mad || !out_mad) 454 goto out; 455 456 init_query_mad(in_mad); 457 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 458 459 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 460 if (err) 461 goto out; 462 463 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 464 465 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 466 467 err = mlx4_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 468 if (err) 469 goto out; 470 471 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 472 473 out: 474 kfree(in_mad); 475 kfree(out_mad); 476 return err; 477 } 478 479 static ssize_t show_hca(struct class_device *cdev, char *buf) 480 { 481 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); 482 return sprintf(buf, "MT%d\n", dev->dev->pdev->device); 483 } 484 485 static ssize_t show_fw_ver(struct class_device *cdev, char *buf) 486 { 487 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); 488 return sprintf(buf, "%d.%d.%d\n", (int) (dev->dev->caps.fw_ver >> 32), 489 (int) (dev->dev->caps.fw_ver >> 16) & 0xffff, 490 (int) dev->dev->caps.fw_ver & 0xffff); 491 } 492 493 static ssize_t show_rev(struct class_device *cdev, char *buf) 494 { 495 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); 496 return sprintf(buf, "%x\n", dev->dev->rev_id); 497 } 498 499 static ssize_t show_board(struct class_device *cdev, char *buf) 500 { 501 struct mlx4_ib_dev *dev = container_of(cdev, struct mlx4_ib_dev, ib_dev.class_dev); 502 return sprintf(buf, "%.*s\n", MLX4_BOARD_ID_LEN, dev->dev->board_id); 503 } 504 505 static CLASS_DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 506 static CLASS_DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 507 static CLASS_DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 508 static CLASS_DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 509 510 static struct class_device_attribute *mlx4_class_attributes[] = { 511 &class_device_attr_hw_rev, 512 &class_device_attr_fw_ver, 513 &class_device_attr_hca_type, 514 &class_device_attr_board_id 515 }; 516 517 static void *mlx4_ib_add(struct mlx4_dev *dev) 518 { 519 struct mlx4_ib_dev *ibdev; 520 int i; 521 522 ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); 523 if (!ibdev) { 524 dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); 525 return NULL; 526 } 527 528 if (mlx4_pd_alloc(dev, &ibdev->priv_pdn)) 529 goto err_dealloc; 530 531 if (mlx4_uar_alloc(dev, &ibdev->priv_uar)) 532 goto err_pd; 533 534 ibdev->uar_map = ioremap(ibdev->priv_uar.pfn << PAGE_SHIFT, PAGE_SIZE); 535 if (!ibdev->uar_map) 536 goto err_uar; 537 MLX4_INIT_DOORBELL_LOCK(&ibdev->uar_lock); 538 539 INIT_LIST_HEAD(&ibdev->pgdir_list); 540 mutex_init(&ibdev->pgdir_mutex); 541 542 ibdev->dev = dev; 543 544 strlcpy(ibdev->ib_dev.name, "mlx4_%d", IB_DEVICE_NAME_MAX); 545 ibdev->ib_dev.owner = THIS_MODULE; 546 ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; 547 ibdev->ib_dev.phys_port_cnt = dev->caps.num_ports; 548 ibdev->ib_dev.num_comp_vectors = 1; 549 ibdev->ib_dev.dma_device = &dev->pdev->dev; 550 551 ibdev->ib_dev.uverbs_abi_ver = MLX4_IB_UVERBS_ABI_VERSION; 552 ibdev->ib_dev.uverbs_cmd_mask = 553 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 554 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 555 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 556 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 557 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 558 (1ull << IB_USER_VERBS_CMD_REG_MR) | 559 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 560 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 561 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 562 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 563 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 564 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 565 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 566 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 567 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 568 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | 569 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 570 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 571 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 572 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ); 573 574 ibdev->ib_dev.query_device = mlx4_ib_query_device; 575 ibdev->ib_dev.query_port = mlx4_ib_query_port; 576 ibdev->ib_dev.query_gid = mlx4_ib_query_gid; 577 ibdev->ib_dev.query_pkey = mlx4_ib_query_pkey; 578 ibdev->ib_dev.modify_device = mlx4_ib_modify_device; 579 ibdev->ib_dev.modify_port = mlx4_ib_modify_port; 580 ibdev->ib_dev.alloc_ucontext = mlx4_ib_alloc_ucontext; 581 ibdev->ib_dev.dealloc_ucontext = mlx4_ib_dealloc_ucontext; 582 ibdev->ib_dev.mmap = mlx4_ib_mmap; 583 ibdev->ib_dev.alloc_pd = mlx4_ib_alloc_pd; 584 ibdev->ib_dev.dealloc_pd = mlx4_ib_dealloc_pd; 585 ibdev->ib_dev.create_ah = mlx4_ib_create_ah; 586 ibdev->ib_dev.query_ah = mlx4_ib_query_ah; 587 ibdev->ib_dev.destroy_ah = mlx4_ib_destroy_ah; 588 ibdev->ib_dev.create_srq = mlx4_ib_create_srq; 589 ibdev->ib_dev.modify_srq = mlx4_ib_modify_srq; 590 ibdev->ib_dev.query_srq = mlx4_ib_query_srq; 591 ibdev->ib_dev.destroy_srq = mlx4_ib_destroy_srq; 592 ibdev->ib_dev.post_srq_recv = mlx4_ib_post_srq_recv; 593 ibdev->ib_dev.create_qp = mlx4_ib_create_qp; 594 ibdev->ib_dev.modify_qp = mlx4_ib_modify_qp; 595 ibdev->ib_dev.query_qp = mlx4_ib_query_qp; 596 ibdev->ib_dev.destroy_qp = mlx4_ib_destroy_qp; 597 ibdev->ib_dev.post_send = mlx4_ib_post_send; 598 ibdev->ib_dev.post_recv = mlx4_ib_post_recv; 599 ibdev->ib_dev.create_cq = mlx4_ib_create_cq; 600 ibdev->ib_dev.destroy_cq = mlx4_ib_destroy_cq; 601 ibdev->ib_dev.poll_cq = mlx4_ib_poll_cq; 602 ibdev->ib_dev.req_notify_cq = mlx4_ib_arm_cq; 603 ibdev->ib_dev.get_dma_mr = mlx4_ib_get_dma_mr; 604 ibdev->ib_dev.reg_user_mr = mlx4_ib_reg_user_mr; 605 ibdev->ib_dev.dereg_mr = mlx4_ib_dereg_mr; 606 ibdev->ib_dev.attach_mcast = mlx4_ib_mcg_attach; 607 ibdev->ib_dev.detach_mcast = mlx4_ib_mcg_detach; 608 ibdev->ib_dev.process_mad = mlx4_ib_process_mad; 609 610 ibdev->ib_dev.alloc_fmr = mlx4_ib_fmr_alloc; 611 ibdev->ib_dev.map_phys_fmr = mlx4_ib_map_phys_fmr; 612 ibdev->ib_dev.unmap_fmr = mlx4_ib_unmap_fmr; 613 ibdev->ib_dev.dealloc_fmr = mlx4_ib_fmr_dealloc; 614 615 if (init_node_data(ibdev)) 616 goto err_map; 617 618 spin_lock_init(&ibdev->sm_lock); 619 mutex_init(&ibdev->cap_mask_mutex); 620 621 if (ib_register_device(&ibdev->ib_dev)) 622 goto err_map; 623 624 if (mlx4_ib_mad_init(ibdev)) 625 goto err_reg; 626 627 for (i = 0; i < ARRAY_SIZE(mlx4_class_attributes); ++i) { 628 if (class_device_create_file(&ibdev->ib_dev.class_dev, 629 mlx4_class_attributes[i])) 630 goto err_reg; 631 } 632 633 return ibdev; 634 635 err_reg: 636 ib_unregister_device(&ibdev->ib_dev); 637 638 err_map: 639 iounmap(ibdev->uar_map); 640 641 err_uar: 642 mlx4_uar_free(dev, &ibdev->priv_uar); 643 644 err_pd: 645 mlx4_pd_free(dev, ibdev->priv_pdn); 646 647 err_dealloc: 648 ib_dealloc_device(&ibdev->ib_dev); 649 650 return NULL; 651 } 652 653 static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr) 654 { 655 struct mlx4_ib_dev *ibdev = ibdev_ptr; 656 int p; 657 658 for (p = 1; p <= dev->caps.num_ports; ++p) 659 mlx4_CLOSE_PORT(dev, p); 660 661 mlx4_ib_mad_cleanup(ibdev); 662 ib_unregister_device(&ibdev->ib_dev); 663 iounmap(ibdev->uar_map); 664 mlx4_uar_free(dev, &ibdev->priv_uar); 665 mlx4_pd_free(dev, ibdev->priv_pdn); 666 ib_dealloc_device(&ibdev->ib_dev); 667 } 668 669 static void mlx4_ib_event(struct mlx4_dev *dev, void *ibdev_ptr, 670 enum mlx4_dev_event event, int subtype, 671 int port) 672 { 673 struct ib_event ibev; 674 675 switch (event) { 676 case MLX4_EVENT_TYPE_PORT_CHANGE: 677 ibev.event = subtype == MLX4_PORT_CHANGE_SUBTYPE_ACTIVE ? 678 IB_EVENT_PORT_ACTIVE : IB_EVENT_PORT_ERR; 679 break; 680 681 case MLX4_EVENT_TYPE_LOCAL_CATAS_ERROR: 682 ibev.event = IB_EVENT_DEVICE_FATAL; 683 break; 684 685 default: 686 return; 687 } 688 689 ibev.device = ibdev_ptr; 690 ibev.element.port_num = port; 691 692 ib_dispatch_event(&ibev); 693 } 694 695 static struct mlx4_interface mlx4_ib_interface = { 696 .add = mlx4_ib_add, 697 .remove = mlx4_ib_remove, 698 .event = mlx4_ib_event 699 }; 700 701 static int __init mlx4_ib_init(void) 702 { 703 return mlx4_register_interface(&mlx4_ib_interface); 704 } 705 706 static void __exit mlx4_ib_cleanup(void) 707 { 708 mlx4_unregister_interface(&mlx4_ib_interface); 709 } 710 711 module_init(mlx4_ib_init); 712 module_exit(mlx4_ib_cleanup); 713