1/* 2 * Copyright (c) 2013-2015, Mellanox Technologies. 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 <asm-generic/kmap_types.h> 34#include <linux/module.h> 35#include <linux/init.h> 36#include <linux/errno.h> 37#include <linux/pci.h> 38#include <linux/dma-mapping.h> 39#include <linux/slab.h> 40#include <linux/io-mapping.h> 41#include <linux/sched.h> 42#include <rdma/ib_user_verbs.h> 43#include <rdma/ib_smi.h> 44#include <rdma/ib_umem.h> 45#include "user.h" 46#include "mlx5_ib.h" 47 48#define DRIVER_NAME "mlx5_ib" 49#define DRIVER_VERSION "2.2-1" 50#define DRIVER_RELDATE "Feb 2014" 51 52MODULE_AUTHOR("Eli Cohen <eli@mellanox.com>"); 53MODULE_DESCRIPTION("Mellanox Connect-IB HCA IB driver"); 54MODULE_LICENSE("Dual BSD/GPL"); 55MODULE_VERSION(DRIVER_VERSION); 56 57static int deprecated_prof_sel = 2; 58module_param_named(prof_sel, deprecated_prof_sel, int, 0444); 59MODULE_PARM_DESC(prof_sel, "profile selector. Deprecated here. Moved to module mlx5_core"); 60 61static char mlx5_version[] = 62 DRIVER_NAME ": Mellanox Connect-IB Infiniband driver v" 63 DRIVER_VERSION " (" DRIVER_RELDATE ")\n"; 64 65static int mlx5_ib_query_device(struct ib_device *ibdev, 66 struct ib_device_attr *props) 67{ 68 struct mlx5_ib_dev *dev = to_mdev(ibdev); 69 struct ib_smp *in_mad = NULL; 70 struct ib_smp *out_mad = NULL; 71 struct mlx5_general_caps *gen; 72 int err = -ENOMEM; 73 int max_rq_sg; 74 int max_sq_sg; 75 u64 flags; 76 77 gen = &dev->mdev->caps.gen; 78 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 79 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 80 if (!in_mad || !out_mad) 81 goto out; 82 83 init_query_mad(in_mad); 84 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 85 86 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, 1, NULL, NULL, in_mad, out_mad); 87 if (err) 88 goto out; 89 90 memset(props, 0, sizeof(*props)); 91 92 props->fw_ver = ((u64)fw_rev_maj(dev->mdev) << 32) | 93 (fw_rev_min(dev->mdev) << 16) | 94 fw_rev_sub(dev->mdev); 95 props->device_cap_flags = IB_DEVICE_CHANGE_PHY_PORT | 96 IB_DEVICE_PORT_ACTIVE_EVENT | 97 IB_DEVICE_SYS_IMAGE_GUID | 98 IB_DEVICE_RC_RNR_NAK_GEN; 99 flags = gen->flags; 100 if (flags & MLX5_DEV_CAP_FLAG_BAD_PKEY_CNTR) 101 props->device_cap_flags |= IB_DEVICE_BAD_PKEY_CNTR; 102 if (flags & MLX5_DEV_CAP_FLAG_BAD_QKEY_CNTR) 103 props->device_cap_flags |= IB_DEVICE_BAD_QKEY_CNTR; 104 if (flags & MLX5_DEV_CAP_FLAG_APM) 105 props->device_cap_flags |= IB_DEVICE_AUTO_PATH_MIG; 106 props->device_cap_flags |= IB_DEVICE_LOCAL_DMA_LKEY; 107 if (flags & MLX5_DEV_CAP_FLAG_XRC) 108 props->device_cap_flags |= IB_DEVICE_XRC; 109 props->device_cap_flags |= IB_DEVICE_MEM_MGT_EXTENSIONS; 110 if (flags & MLX5_DEV_CAP_FLAG_SIG_HAND_OVER) { 111 props->device_cap_flags |= IB_DEVICE_SIGNATURE_HANDOVER; 112 /* At this stage no support for signature handover */ 113 props->sig_prot_cap = IB_PROT_T10DIF_TYPE_1 | 114 IB_PROT_T10DIF_TYPE_2 | 115 IB_PROT_T10DIF_TYPE_3; 116 props->sig_guard_cap = IB_GUARD_T10DIF_CRC | 117 IB_GUARD_T10DIF_CSUM; 118 } 119 if (flags & MLX5_DEV_CAP_FLAG_BLOCK_MCAST) 120 props->device_cap_flags |= IB_DEVICE_BLOCK_MULTICAST_LOOPBACK; 121 122 props->vendor_id = be32_to_cpup((__be32 *)(out_mad->data + 36)) & 123 0xffffff; 124 props->vendor_part_id = be16_to_cpup((__be16 *)(out_mad->data + 30)); 125 props->hw_ver = be32_to_cpup((__be32 *)(out_mad->data + 32)); 126 memcpy(&props->sys_image_guid, out_mad->data + 4, 8); 127 128 props->max_mr_size = ~0ull; 129 props->page_size_cap = gen->min_page_sz; 130 props->max_qp = 1 << gen->log_max_qp; 131 props->max_qp_wr = gen->max_wqes; 132 max_rq_sg = gen->max_rq_desc_sz / sizeof(struct mlx5_wqe_data_seg); 133 max_sq_sg = (gen->max_sq_desc_sz - sizeof(struct mlx5_wqe_ctrl_seg)) / 134 sizeof(struct mlx5_wqe_data_seg); 135 props->max_sge = min(max_rq_sg, max_sq_sg); 136 props->max_cq = 1 << gen->log_max_cq; 137 props->max_cqe = gen->max_cqes - 1; 138 props->max_mr = 1 << gen->log_max_mkey; 139 props->max_pd = 1 << gen->log_max_pd; 140 props->max_qp_rd_atom = 1 << gen->log_max_ra_req_qp; 141 props->max_qp_init_rd_atom = 1 << gen->log_max_ra_res_qp; 142 props->max_srq = 1 << gen->log_max_srq; 143 props->max_srq_wr = gen->max_srq_wqes - 1; 144 props->local_ca_ack_delay = gen->local_ca_ack_delay; 145 props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; 146 props->max_srq_sge = max_rq_sg - 1; 147 props->max_fast_reg_page_list_len = (unsigned int)-1; 148 props->local_ca_ack_delay = gen->local_ca_ack_delay; 149 props->atomic_cap = IB_ATOMIC_NONE; 150 props->masked_atomic_cap = IB_ATOMIC_NONE; 151 props->max_pkeys = be16_to_cpup((__be16 *)(out_mad->data + 28)); 152 props->max_mcast_grp = 1 << gen->log_max_mcg; 153 props->max_mcast_qp_attach = gen->max_qp_mcg; 154 props->max_total_mcast_qp_attach = props->max_mcast_qp_attach * 155 props->max_mcast_grp; 156 props->max_map_per_fmr = INT_MAX; /* no limit in ConnectIB */ 157 158#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 159 if (dev->mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_ON_DMND_PG) 160 props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; 161 props->odp_caps = dev->odp_caps; 162#endif 163 164out: 165 kfree(in_mad); 166 kfree(out_mad); 167 168 return err; 169} 170 171int mlx5_ib_query_port(struct ib_device *ibdev, u8 port, 172 struct ib_port_attr *props) 173{ 174 struct mlx5_ib_dev *dev = to_mdev(ibdev); 175 struct ib_smp *in_mad = NULL; 176 struct ib_smp *out_mad = NULL; 177 struct mlx5_general_caps *gen; 178 int ext_active_speed; 179 int err = -ENOMEM; 180 181 gen = &dev->mdev->caps.gen; 182 if (port < 1 || port > gen->num_ports) { 183 mlx5_ib_warn(dev, "invalid port number %d\n", port); 184 return -EINVAL; 185 } 186 187 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 188 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 189 if (!in_mad || !out_mad) 190 goto out; 191 192 memset(props, 0, sizeof(*props)); 193 194 init_query_mad(in_mad); 195 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 196 in_mad->attr_mod = cpu_to_be32(port); 197 198 err = mlx5_MAD_IFC(dev, 1, 1, port, NULL, NULL, in_mad, out_mad); 199 if (err) { 200 mlx5_ib_warn(dev, "err %d\n", err); 201 goto out; 202 } 203 204 205 props->lid = be16_to_cpup((__be16 *)(out_mad->data + 16)); 206 props->lmc = out_mad->data[34] & 0x7; 207 props->sm_lid = be16_to_cpup((__be16 *)(out_mad->data + 18)); 208 props->sm_sl = out_mad->data[36] & 0xf; 209 props->state = out_mad->data[32] & 0xf; 210 props->phys_state = out_mad->data[33] >> 4; 211 props->port_cap_flags = be32_to_cpup((__be32 *)(out_mad->data + 20)); 212 props->gid_tbl_len = out_mad->data[50]; 213 props->max_msg_sz = 1 << gen->log_max_msg; 214 props->pkey_tbl_len = gen->port[port - 1].pkey_table_len; 215 props->bad_pkey_cntr = be16_to_cpup((__be16 *)(out_mad->data + 46)); 216 props->qkey_viol_cntr = be16_to_cpup((__be16 *)(out_mad->data + 48)); 217 props->active_width = out_mad->data[31] & 0xf; 218 props->active_speed = out_mad->data[35] >> 4; 219 props->max_mtu = out_mad->data[41] & 0xf; 220 props->active_mtu = out_mad->data[36] >> 4; 221 props->subnet_timeout = out_mad->data[51] & 0x1f; 222 props->max_vl_num = out_mad->data[37] >> 4; 223 props->init_type_reply = out_mad->data[41] >> 4; 224 225 /* Check if extended speeds (EDR/FDR/...) are supported */ 226 if (props->port_cap_flags & IB_PORT_EXTENDED_SPEEDS_SUP) { 227 ext_active_speed = out_mad->data[62] >> 4; 228 229 switch (ext_active_speed) { 230 case 1: 231 props->active_speed = 16; /* FDR */ 232 break; 233 case 2: 234 props->active_speed = 32; /* EDR */ 235 break; 236 } 237 } 238 239 /* If reported active speed is QDR, check if is FDR-10 */ 240 if (props->active_speed == 4) { 241 if (gen->ext_port_cap[port - 1] & 242 MLX_EXT_PORT_CAP_FLAG_EXTENDED_PORT_INFO) { 243 init_query_mad(in_mad); 244 in_mad->attr_id = MLX5_ATTR_EXTENDED_PORT_INFO; 245 in_mad->attr_mod = cpu_to_be32(port); 246 247 err = mlx5_MAD_IFC(dev, 1, 1, port, 248 NULL, NULL, in_mad, out_mad); 249 if (err) 250 goto out; 251 252 /* Checking LinkSpeedActive for FDR-10 */ 253 if (out_mad->data[15] & 0x1) 254 props->active_speed = 8; 255 } 256 } 257 258out: 259 kfree(in_mad); 260 kfree(out_mad); 261 262 return err; 263} 264 265static int mlx5_ib_query_gid(struct ib_device *ibdev, u8 port, int index, 266 union ib_gid *gid) 267{ 268 struct ib_smp *in_mad = NULL; 269 struct ib_smp *out_mad = NULL; 270 int err = -ENOMEM; 271 272 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 273 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 274 if (!in_mad || !out_mad) 275 goto out; 276 277 init_query_mad(in_mad); 278 in_mad->attr_id = IB_SMP_ATTR_PORT_INFO; 279 in_mad->attr_mod = cpu_to_be32(port); 280 281 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 282 if (err) 283 goto out; 284 285 memcpy(gid->raw, out_mad->data + 8, 8); 286 287 init_query_mad(in_mad); 288 in_mad->attr_id = IB_SMP_ATTR_GUID_INFO; 289 in_mad->attr_mod = cpu_to_be32(index / 8); 290 291 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 292 if (err) 293 goto out; 294 295 memcpy(gid->raw + 8, out_mad->data + (index % 8) * 8, 8); 296 297out: 298 kfree(in_mad); 299 kfree(out_mad); 300 return err; 301} 302 303static int mlx5_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index, 304 u16 *pkey) 305{ 306 struct ib_smp *in_mad = NULL; 307 struct ib_smp *out_mad = NULL; 308 int err = -ENOMEM; 309 310 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 311 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 312 if (!in_mad || !out_mad) 313 goto out; 314 315 init_query_mad(in_mad); 316 in_mad->attr_id = IB_SMP_ATTR_PKEY_TABLE; 317 in_mad->attr_mod = cpu_to_be32(index / 32); 318 319 err = mlx5_MAD_IFC(to_mdev(ibdev), 1, 1, port, NULL, NULL, in_mad, out_mad); 320 if (err) 321 goto out; 322 323 *pkey = be16_to_cpu(((__be16 *)out_mad->data)[index % 32]); 324 325out: 326 kfree(in_mad); 327 kfree(out_mad); 328 return err; 329} 330 331struct mlx5_reg_node_desc { 332 u8 desc[64]; 333}; 334 335static int mlx5_ib_modify_device(struct ib_device *ibdev, int mask, 336 struct ib_device_modify *props) 337{ 338 struct mlx5_ib_dev *dev = to_mdev(ibdev); 339 struct mlx5_reg_node_desc in; 340 struct mlx5_reg_node_desc out; 341 int err; 342 343 if (mask & ~IB_DEVICE_MODIFY_NODE_DESC) 344 return -EOPNOTSUPP; 345 346 if (!(mask & IB_DEVICE_MODIFY_NODE_DESC)) 347 return 0; 348 349 /* 350 * If possible, pass node desc to FW, so it can generate 351 * a 144 trap. If cmd fails, just ignore. 352 */ 353 memcpy(&in, props->node_desc, 64); 354 err = mlx5_core_access_reg(dev->mdev, &in, sizeof(in), &out, 355 sizeof(out), MLX5_REG_NODE_DESC, 0, 1); 356 if (err) 357 return err; 358 359 memcpy(ibdev->node_desc, props->node_desc, 64); 360 361 return err; 362} 363 364static int mlx5_ib_modify_port(struct ib_device *ibdev, u8 port, int mask, 365 struct ib_port_modify *props) 366{ 367 struct mlx5_ib_dev *dev = to_mdev(ibdev); 368 struct ib_port_attr attr; 369 u32 tmp; 370 int err; 371 372 mutex_lock(&dev->cap_mask_mutex); 373 374 err = mlx5_ib_query_port(ibdev, port, &attr); 375 if (err) 376 goto out; 377 378 tmp = (attr.port_cap_flags | props->set_port_cap_mask) & 379 ~props->clr_port_cap_mask; 380 381 err = mlx5_set_port_caps(dev->mdev, port, tmp); 382 383out: 384 mutex_unlock(&dev->cap_mask_mutex); 385 return err; 386} 387 388static struct ib_ucontext *mlx5_ib_alloc_ucontext(struct ib_device *ibdev, 389 struct ib_udata *udata) 390{ 391 struct mlx5_ib_dev *dev = to_mdev(ibdev); 392 struct mlx5_ib_alloc_ucontext_req_v2 req; 393 struct mlx5_ib_alloc_ucontext_resp resp; 394 struct mlx5_ib_ucontext *context; 395 struct mlx5_general_caps *gen; 396 struct mlx5_uuar_info *uuari; 397 struct mlx5_uar *uars; 398 int gross_uuars; 399 int num_uars; 400 int ver; 401 int uuarn; 402 int err; 403 int i; 404 size_t reqlen; 405 406 gen = &dev->mdev->caps.gen; 407 if (!dev->ib_active) 408 return ERR_PTR(-EAGAIN); 409 410 memset(&req, 0, sizeof(req)); 411 reqlen = udata->inlen - sizeof(struct ib_uverbs_cmd_hdr); 412 if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req)) 413 ver = 0; 414 else if (reqlen == sizeof(struct mlx5_ib_alloc_ucontext_req_v2)) 415 ver = 2; 416 else 417 return ERR_PTR(-EINVAL); 418 419 err = ib_copy_from_udata(&req, udata, reqlen); 420 if (err) 421 return ERR_PTR(err); 422 423 if (req.flags || req.reserved) 424 return ERR_PTR(-EINVAL); 425 426 if (req.total_num_uuars > MLX5_MAX_UUARS) 427 return ERR_PTR(-ENOMEM); 428 429 if (req.total_num_uuars == 0) 430 return ERR_PTR(-EINVAL); 431 432 req.total_num_uuars = ALIGN(req.total_num_uuars, 433 MLX5_NON_FP_BF_REGS_PER_PAGE); 434 if (req.num_low_latency_uuars > req.total_num_uuars - 1) 435 return ERR_PTR(-EINVAL); 436 437 num_uars = req.total_num_uuars / MLX5_NON_FP_BF_REGS_PER_PAGE; 438 gross_uuars = num_uars * MLX5_BF_REGS_PER_PAGE; 439 resp.qp_tab_size = 1 << gen->log_max_qp; 440 resp.bf_reg_size = gen->bf_reg_size; 441 resp.cache_line_size = L1_CACHE_BYTES; 442 resp.max_sq_desc_sz = gen->max_sq_desc_sz; 443 resp.max_rq_desc_sz = gen->max_rq_desc_sz; 444 resp.max_send_wqebb = gen->max_wqes; 445 resp.max_recv_wr = gen->max_wqes; 446 resp.max_srq_recv_wr = gen->max_srq_wqes; 447 448 context = kzalloc(sizeof(*context), GFP_KERNEL); 449 if (!context) 450 return ERR_PTR(-ENOMEM); 451 452 uuari = &context->uuari; 453 mutex_init(&uuari->lock); 454 uars = kcalloc(num_uars, sizeof(*uars), GFP_KERNEL); 455 if (!uars) { 456 err = -ENOMEM; 457 goto out_ctx; 458 } 459 460 uuari->bitmap = kcalloc(BITS_TO_LONGS(gross_uuars), 461 sizeof(*uuari->bitmap), 462 GFP_KERNEL); 463 if (!uuari->bitmap) { 464 err = -ENOMEM; 465 goto out_uar_ctx; 466 } 467 /* 468 * clear all fast path uuars 469 */ 470 for (i = 0; i < gross_uuars; i++) { 471 uuarn = i & 3; 472 if (uuarn == 2 || uuarn == 3) 473 set_bit(i, uuari->bitmap); 474 } 475 476 uuari->count = kcalloc(gross_uuars, sizeof(*uuari->count), GFP_KERNEL); 477 if (!uuari->count) { 478 err = -ENOMEM; 479 goto out_bitmap; 480 } 481 482 for (i = 0; i < num_uars; i++) { 483 err = mlx5_cmd_alloc_uar(dev->mdev, &uars[i].index); 484 if (err) 485 goto out_count; 486 } 487 488#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING 489 context->ibucontext.invalidate_range = &mlx5_ib_invalidate_range; 490#endif 491 492 INIT_LIST_HEAD(&context->db_page_list); 493 mutex_init(&context->db_page_mutex); 494 495 resp.tot_uuars = req.total_num_uuars; 496 resp.num_ports = gen->num_ports; 497 err = ib_copy_to_udata(udata, &resp, 498 sizeof(resp) - sizeof(resp.reserved)); 499 if (err) 500 goto out_uars; 501 502 uuari->ver = ver; 503 uuari->num_low_latency_uuars = req.num_low_latency_uuars; 504 uuari->uars = uars; 505 uuari->num_uars = num_uars; 506 return &context->ibucontext; 507 508out_uars: 509 for (i--; i >= 0; i--) 510 mlx5_cmd_free_uar(dev->mdev, uars[i].index); 511out_count: 512 kfree(uuari->count); 513 514out_bitmap: 515 kfree(uuari->bitmap); 516 517out_uar_ctx: 518 kfree(uars); 519 520out_ctx: 521 kfree(context); 522 return ERR_PTR(err); 523} 524 525static int mlx5_ib_dealloc_ucontext(struct ib_ucontext *ibcontext) 526{ 527 struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); 528 struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); 529 struct mlx5_uuar_info *uuari = &context->uuari; 530 int i; 531 532 for (i = 0; i < uuari->num_uars; i++) { 533 if (mlx5_cmd_free_uar(dev->mdev, uuari->uars[i].index)) 534 mlx5_ib_warn(dev, "failed to free UAR 0x%x\n", uuari->uars[i].index); 535 } 536 537 kfree(uuari->count); 538 kfree(uuari->bitmap); 539 kfree(uuari->uars); 540 kfree(context); 541 542 return 0; 543} 544 545static phys_addr_t uar_index2pfn(struct mlx5_ib_dev *dev, int index) 546{ 547 return (pci_resource_start(dev->mdev->pdev, 0) >> PAGE_SHIFT) + index; 548} 549 550static int get_command(unsigned long offset) 551{ 552 return (offset >> MLX5_IB_MMAP_CMD_SHIFT) & MLX5_IB_MMAP_CMD_MASK; 553} 554 555static int get_arg(unsigned long offset) 556{ 557 return offset & ((1 << MLX5_IB_MMAP_CMD_SHIFT) - 1); 558} 559 560static int get_index(unsigned long offset) 561{ 562 return get_arg(offset); 563} 564 565static int mlx5_ib_mmap(struct ib_ucontext *ibcontext, struct vm_area_struct *vma) 566{ 567 struct mlx5_ib_ucontext *context = to_mucontext(ibcontext); 568 struct mlx5_ib_dev *dev = to_mdev(ibcontext->device); 569 struct mlx5_uuar_info *uuari = &context->uuari; 570 unsigned long command; 571 unsigned long idx; 572 phys_addr_t pfn; 573 574 command = get_command(vma->vm_pgoff); 575 switch (command) { 576 case MLX5_IB_MMAP_REGULAR_PAGE: 577 if (vma->vm_end - vma->vm_start != PAGE_SIZE) 578 return -EINVAL; 579 580 idx = get_index(vma->vm_pgoff); 581 if (idx >= uuari->num_uars) 582 return -EINVAL; 583 584 pfn = uar_index2pfn(dev, uuari->uars[idx].index); 585 mlx5_ib_dbg(dev, "uar idx 0x%lx, pfn 0x%llx\n", idx, 586 (unsigned long long)pfn); 587 588 vma->vm_page_prot = pgprot_writecombine(vma->vm_page_prot); 589 if (io_remap_pfn_range(vma, vma->vm_start, pfn, 590 PAGE_SIZE, vma->vm_page_prot)) 591 return -EAGAIN; 592 593 mlx5_ib_dbg(dev, "mapped WC at 0x%lx, PA 0x%llx\n", 594 vma->vm_start, 595 (unsigned long long)pfn << PAGE_SHIFT); 596 break; 597 598 case MLX5_IB_MMAP_GET_CONTIGUOUS_PAGES: 599 return -ENOSYS; 600 601 default: 602 return -EINVAL; 603 } 604 605 return 0; 606} 607 608static int alloc_pa_mkey(struct mlx5_ib_dev *dev, u32 *key, u32 pdn) 609{ 610 struct mlx5_create_mkey_mbox_in *in; 611 struct mlx5_mkey_seg *seg; 612 struct mlx5_core_mr mr; 613 int err; 614 615 in = kzalloc(sizeof(*in), GFP_KERNEL); 616 if (!in) 617 return -ENOMEM; 618 619 seg = &in->seg; 620 seg->flags = MLX5_PERM_LOCAL_READ | MLX5_ACCESS_MODE_PA; 621 seg->flags_pd = cpu_to_be32(pdn | MLX5_MKEY_LEN64); 622 seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8); 623 seg->start_addr = 0; 624 625 err = mlx5_core_create_mkey(dev->mdev, &mr, in, sizeof(*in), 626 NULL, NULL, NULL); 627 if (err) { 628 mlx5_ib_warn(dev, "failed to create mkey, %d\n", err); 629 goto err_in; 630 } 631 632 kfree(in); 633 *key = mr.key; 634 635 return 0; 636 637err_in: 638 kfree(in); 639 640 return err; 641} 642 643static void free_pa_mkey(struct mlx5_ib_dev *dev, u32 key) 644{ 645 struct mlx5_core_mr mr; 646 int err; 647 648 memset(&mr, 0, sizeof(mr)); 649 mr.key = key; 650 err = mlx5_core_destroy_mkey(dev->mdev, &mr); 651 if (err) 652 mlx5_ib_warn(dev, "failed to destroy mkey 0x%x\n", key); 653} 654 655static struct ib_pd *mlx5_ib_alloc_pd(struct ib_device *ibdev, 656 struct ib_ucontext *context, 657 struct ib_udata *udata) 658{ 659 struct mlx5_ib_alloc_pd_resp resp; 660 struct mlx5_ib_pd *pd; 661 int err; 662 663 pd = kmalloc(sizeof(*pd), GFP_KERNEL); 664 if (!pd) 665 return ERR_PTR(-ENOMEM); 666 667 err = mlx5_core_alloc_pd(to_mdev(ibdev)->mdev, &pd->pdn); 668 if (err) { 669 kfree(pd); 670 return ERR_PTR(err); 671 } 672 673 if (context) { 674 resp.pdn = pd->pdn; 675 if (ib_copy_to_udata(udata, &resp, sizeof(resp))) { 676 mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn); 677 kfree(pd); 678 return ERR_PTR(-EFAULT); 679 } 680 } else { 681 err = alloc_pa_mkey(to_mdev(ibdev), &pd->pa_lkey, pd->pdn); 682 if (err) { 683 mlx5_core_dealloc_pd(to_mdev(ibdev)->mdev, pd->pdn); 684 kfree(pd); 685 return ERR_PTR(err); 686 } 687 } 688 689 return &pd->ibpd; 690} 691 692static int mlx5_ib_dealloc_pd(struct ib_pd *pd) 693{ 694 struct mlx5_ib_dev *mdev = to_mdev(pd->device); 695 struct mlx5_ib_pd *mpd = to_mpd(pd); 696 697 if (!pd->uobject) 698 free_pa_mkey(mdev, mpd->pa_lkey); 699 700 mlx5_core_dealloc_pd(mdev->mdev, mpd->pdn); 701 kfree(mpd); 702 703 return 0; 704} 705 706static int mlx5_ib_mcg_attach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 707{ 708 struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 709 int err; 710 711 err = mlx5_core_attach_mcg(dev->mdev, gid, ibqp->qp_num); 712 if (err) 713 mlx5_ib_warn(dev, "failed attaching QPN 0x%x, MGID %pI6\n", 714 ibqp->qp_num, gid->raw); 715 716 return err; 717} 718 719static int mlx5_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 720{ 721 struct mlx5_ib_dev *dev = to_mdev(ibqp->device); 722 int err; 723 724 err = mlx5_core_detach_mcg(dev->mdev, gid, ibqp->qp_num); 725 if (err) 726 mlx5_ib_warn(dev, "failed detaching QPN 0x%x, MGID %pI6\n", 727 ibqp->qp_num, gid->raw); 728 729 return err; 730} 731 732static int init_node_data(struct mlx5_ib_dev *dev) 733{ 734 struct ib_smp *in_mad = NULL; 735 struct ib_smp *out_mad = NULL; 736 int err = -ENOMEM; 737 738 in_mad = kzalloc(sizeof(*in_mad), GFP_KERNEL); 739 out_mad = kmalloc(sizeof(*out_mad), GFP_KERNEL); 740 if (!in_mad || !out_mad) 741 goto out; 742 743 init_query_mad(in_mad); 744 in_mad->attr_id = IB_SMP_ATTR_NODE_DESC; 745 746 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 747 if (err) 748 goto out; 749 750 memcpy(dev->ib_dev.node_desc, out_mad->data, 64); 751 752 in_mad->attr_id = IB_SMP_ATTR_NODE_INFO; 753 754 err = mlx5_MAD_IFC(dev, 1, 1, 1, NULL, NULL, in_mad, out_mad); 755 if (err) 756 goto out; 757 758 dev->mdev->rev_id = be32_to_cpup((__be32 *)(out_mad->data + 32)); 759 memcpy(&dev->ib_dev.node_guid, out_mad->data + 12, 8); 760 761out: 762 kfree(in_mad); 763 kfree(out_mad); 764 return err; 765} 766 767static ssize_t show_fw_pages(struct device *device, struct device_attribute *attr, 768 char *buf) 769{ 770 struct mlx5_ib_dev *dev = 771 container_of(device, struct mlx5_ib_dev, ib_dev.dev); 772 773 return sprintf(buf, "%d\n", dev->mdev->priv.fw_pages); 774} 775 776static ssize_t show_reg_pages(struct device *device, 777 struct device_attribute *attr, char *buf) 778{ 779 struct mlx5_ib_dev *dev = 780 container_of(device, struct mlx5_ib_dev, ib_dev.dev); 781 782 return sprintf(buf, "%d\n", atomic_read(&dev->mdev->priv.reg_pages)); 783} 784 785static ssize_t show_hca(struct device *device, struct device_attribute *attr, 786 char *buf) 787{ 788 struct mlx5_ib_dev *dev = 789 container_of(device, struct mlx5_ib_dev, ib_dev.dev); 790 return sprintf(buf, "MT%d\n", dev->mdev->pdev->device); 791} 792 793static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr, 794 char *buf) 795{ 796 struct mlx5_ib_dev *dev = 797 container_of(device, struct mlx5_ib_dev, ib_dev.dev); 798 return sprintf(buf, "%d.%d.%d\n", fw_rev_maj(dev->mdev), 799 fw_rev_min(dev->mdev), fw_rev_sub(dev->mdev)); 800} 801 802static ssize_t show_rev(struct device *device, struct device_attribute *attr, 803 char *buf) 804{ 805 struct mlx5_ib_dev *dev = 806 container_of(device, struct mlx5_ib_dev, ib_dev.dev); 807 return sprintf(buf, "%x\n", dev->mdev->rev_id); 808} 809 810static ssize_t show_board(struct device *device, struct device_attribute *attr, 811 char *buf) 812{ 813 struct mlx5_ib_dev *dev = 814 container_of(device, struct mlx5_ib_dev, ib_dev.dev); 815 return sprintf(buf, "%.*s\n", MLX5_BOARD_ID_LEN, 816 dev->mdev->board_id); 817} 818 819static DEVICE_ATTR(hw_rev, S_IRUGO, show_rev, NULL); 820static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL); 821static DEVICE_ATTR(hca_type, S_IRUGO, show_hca, NULL); 822static DEVICE_ATTR(board_id, S_IRUGO, show_board, NULL); 823static DEVICE_ATTR(fw_pages, S_IRUGO, show_fw_pages, NULL); 824static DEVICE_ATTR(reg_pages, S_IRUGO, show_reg_pages, NULL); 825 826static struct device_attribute *mlx5_class_attributes[] = { 827 &dev_attr_hw_rev, 828 &dev_attr_fw_ver, 829 &dev_attr_hca_type, 830 &dev_attr_board_id, 831 &dev_attr_fw_pages, 832 &dev_attr_reg_pages, 833}; 834 835static void mlx5_ib_event(struct mlx5_core_dev *dev, void *context, 836 enum mlx5_dev_event event, unsigned long param) 837{ 838 struct mlx5_ib_dev *ibdev = (struct mlx5_ib_dev *)context; 839 struct ib_event ibev; 840 841 u8 port = 0; 842 843 switch (event) { 844 case MLX5_DEV_EVENT_SYS_ERROR: 845 ibdev->ib_active = false; 846 ibev.event = IB_EVENT_DEVICE_FATAL; 847 break; 848 849 case MLX5_DEV_EVENT_PORT_UP: 850 ibev.event = IB_EVENT_PORT_ACTIVE; 851 port = (u8)param; 852 break; 853 854 case MLX5_DEV_EVENT_PORT_DOWN: 855 ibev.event = IB_EVENT_PORT_ERR; 856 port = (u8)param; 857 break; 858 859 case MLX5_DEV_EVENT_PORT_INITIALIZED: 860 /* not used by ULPs */ 861 return; 862 863 case MLX5_DEV_EVENT_LID_CHANGE: 864 ibev.event = IB_EVENT_LID_CHANGE; 865 port = (u8)param; 866 break; 867 868 case MLX5_DEV_EVENT_PKEY_CHANGE: 869 ibev.event = IB_EVENT_PKEY_CHANGE; 870 port = (u8)param; 871 break; 872 873 case MLX5_DEV_EVENT_GUID_CHANGE: 874 ibev.event = IB_EVENT_GID_CHANGE; 875 port = (u8)param; 876 break; 877 878 case MLX5_DEV_EVENT_CLIENT_REREG: 879 ibev.event = IB_EVENT_CLIENT_REREGISTER; 880 port = (u8)param; 881 break; 882 } 883 884 ibev.device = &ibdev->ib_dev; 885 ibev.element.port_num = port; 886 887 if (port < 1 || port > ibdev->num_ports) { 888 mlx5_ib_warn(ibdev, "warning: event on port %d\n", port); 889 return; 890 } 891 892 if (ibdev->ib_active) 893 ib_dispatch_event(&ibev); 894} 895 896static void get_ext_port_caps(struct mlx5_ib_dev *dev) 897{ 898 struct mlx5_general_caps *gen; 899 int port; 900 901 gen = &dev->mdev->caps.gen; 902 for (port = 1; port <= gen->num_ports; port++) 903 mlx5_query_ext_port_caps(dev, port); 904} 905 906static int get_port_caps(struct mlx5_ib_dev *dev) 907{ 908 struct ib_device_attr *dprops = NULL; 909 struct ib_port_attr *pprops = NULL; 910 struct mlx5_general_caps *gen; 911 int err = -ENOMEM; 912 int port; 913 914 gen = &dev->mdev->caps.gen; 915 pprops = kmalloc(sizeof(*pprops), GFP_KERNEL); 916 if (!pprops) 917 goto out; 918 919 dprops = kmalloc(sizeof(*dprops), GFP_KERNEL); 920 if (!dprops) 921 goto out; 922 923 err = mlx5_ib_query_device(&dev->ib_dev, dprops); 924 if (err) { 925 mlx5_ib_warn(dev, "query_device failed %d\n", err); 926 goto out; 927 } 928 929 for (port = 1; port <= gen->num_ports; port++) { 930 err = mlx5_ib_query_port(&dev->ib_dev, port, pprops); 931 if (err) { 932 mlx5_ib_warn(dev, "query_port %d failed %d\n", port, err); 933 break; 934 } 935 gen->port[port - 1].pkey_table_len = dprops->max_pkeys; 936 gen->port[port - 1].gid_table_len = pprops->gid_tbl_len; 937 mlx5_ib_dbg(dev, "pkey_table_len %d, gid_table_len %d\n", 938 dprops->max_pkeys, pprops->gid_tbl_len); 939 } 940 941out: 942 kfree(pprops); 943 kfree(dprops); 944 945 return err; 946} 947 948static void destroy_umrc_res(struct mlx5_ib_dev *dev) 949{ 950 int err; 951 952 err = mlx5_mr_cache_cleanup(dev); 953 if (err) 954 mlx5_ib_warn(dev, "mr cache cleanup failed\n"); 955 956 mlx5_ib_destroy_qp(dev->umrc.qp); 957 ib_destroy_cq(dev->umrc.cq); 958 ib_dereg_mr(dev->umrc.mr); 959 ib_dealloc_pd(dev->umrc.pd); 960} 961 962enum { 963 MAX_UMR_WR = 128, 964}; 965 966static int create_umr_res(struct mlx5_ib_dev *dev) 967{ 968 struct ib_qp_init_attr *init_attr = NULL; 969 struct ib_qp_attr *attr = NULL; 970 struct ib_pd *pd; 971 struct ib_cq *cq; 972 struct ib_qp *qp; 973 struct ib_mr *mr; 974 int ret; 975 976 attr = kzalloc(sizeof(*attr), GFP_KERNEL); 977 init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); 978 if (!attr || !init_attr) { 979 ret = -ENOMEM; 980 goto error_0; 981 } 982 983 pd = ib_alloc_pd(&dev->ib_dev); 984 if (IS_ERR(pd)) { 985 mlx5_ib_dbg(dev, "Couldn't create PD for sync UMR QP\n"); 986 ret = PTR_ERR(pd); 987 goto error_0; 988 } 989 990 mr = ib_get_dma_mr(pd, IB_ACCESS_LOCAL_WRITE); 991 if (IS_ERR(mr)) { 992 mlx5_ib_dbg(dev, "Couldn't create DMA MR for sync UMR QP\n"); 993 ret = PTR_ERR(mr); 994 goto error_1; 995 } 996 997 cq = ib_create_cq(&dev->ib_dev, mlx5_umr_cq_handler, NULL, NULL, 128, 998 0); 999 if (IS_ERR(cq)) { 1000 mlx5_ib_dbg(dev, "Couldn't create CQ for sync UMR QP\n"); 1001 ret = PTR_ERR(cq); 1002 goto error_2; 1003 } 1004 ib_req_notify_cq(cq, IB_CQ_NEXT_COMP); 1005 1006 init_attr->send_cq = cq; 1007 init_attr->recv_cq = cq; 1008 init_attr->sq_sig_type = IB_SIGNAL_ALL_WR; 1009 init_attr->cap.max_send_wr = MAX_UMR_WR; 1010 init_attr->cap.max_send_sge = 1; 1011 init_attr->qp_type = MLX5_IB_QPT_REG_UMR; 1012 init_attr->port_num = 1; 1013 qp = mlx5_ib_create_qp(pd, init_attr, NULL); 1014 if (IS_ERR(qp)) { 1015 mlx5_ib_dbg(dev, "Couldn't create sync UMR QP\n"); 1016 ret = PTR_ERR(qp); 1017 goto error_3; 1018 } 1019 qp->device = &dev->ib_dev; 1020 qp->real_qp = qp; 1021 qp->uobject = NULL; 1022 qp->qp_type = MLX5_IB_QPT_REG_UMR; 1023 1024 attr->qp_state = IB_QPS_INIT; 1025 attr->port_num = 1; 1026 ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE | IB_QP_PKEY_INDEX | 1027 IB_QP_PORT, NULL); 1028 if (ret) { 1029 mlx5_ib_dbg(dev, "Couldn't modify UMR QP\n"); 1030 goto error_4; 1031 } 1032 1033 memset(attr, 0, sizeof(*attr)); 1034 attr->qp_state = IB_QPS_RTR; 1035 attr->path_mtu = IB_MTU_256; 1036 1037 ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); 1038 if (ret) { 1039 mlx5_ib_dbg(dev, "Couldn't modify umr QP to rtr\n"); 1040 goto error_4; 1041 } 1042 1043 memset(attr, 0, sizeof(*attr)); 1044 attr->qp_state = IB_QPS_RTS; 1045 ret = mlx5_ib_modify_qp(qp, attr, IB_QP_STATE, NULL); 1046 if (ret) { 1047 mlx5_ib_dbg(dev, "Couldn't modify umr QP to rts\n"); 1048 goto error_4; 1049 } 1050 1051 dev->umrc.qp = qp; 1052 dev->umrc.cq = cq; 1053 dev->umrc.mr = mr; 1054 dev->umrc.pd = pd; 1055 1056 sema_init(&dev->umrc.sem, MAX_UMR_WR); 1057 ret = mlx5_mr_cache_init(dev); 1058 if (ret) { 1059 mlx5_ib_warn(dev, "mr cache init failed %d\n", ret); 1060 goto error_4; 1061 } 1062 1063 kfree(attr); 1064 kfree(init_attr); 1065 1066 return 0; 1067 1068error_4: 1069 mlx5_ib_destroy_qp(qp); 1070 1071error_3: 1072 ib_destroy_cq(cq); 1073 1074error_2: 1075 ib_dereg_mr(mr); 1076 1077error_1: 1078 ib_dealloc_pd(pd); 1079 1080error_0: 1081 kfree(attr); 1082 kfree(init_attr); 1083 return ret; 1084} 1085 1086static int create_dev_resources(struct mlx5_ib_resources *devr) 1087{ 1088 struct ib_srq_init_attr attr; 1089 struct mlx5_ib_dev *dev; 1090 int ret = 0; 1091 1092 dev = container_of(devr, struct mlx5_ib_dev, devr); 1093 1094 devr->p0 = mlx5_ib_alloc_pd(&dev->ib_dev, NULL, NULL); 1095 if (IS_ERR(devr->p0)) { 1096 ret = PTR_ERR(devr->p0); 1097 goto error0; 1098 } 1099 devr->p0->device = &dev->ib_dev; 1100 devr->p0->uobject = NULL; 1101 atomic_set(&devr->p0->usecnt, 0); 1102 1103 devr->c0 = mlx5_ib_create_cq(&dev->ib_dev, 1, 0, NULL, NULL); 1104 if (IS_ERR(devr->c0)) { 1105 ret = PTR_ERR(devr->c0); 1106 goto error1; 1107 } 1108 devr->c0->device = &dev->ib_dev; 1109 devr->c0->uobject = NULL; 1110 devr->c0->comp_handler = NULL; 1111 devr->c0->event_handler = NULL; 1112 devr->c0->cq_context = NULL; 1113 atomic_set(&devr->c0->usecnt, 0); 1114 1115 devr->x0 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); 1116 if (IS_ERR(devr->x0)) { 1117 ret = PTR_ERR(devr->x0); 1118 goto error2; 1119 } 1120 devr->x0->device = &dev->ib_dev; 1121 devr->x0->inode = NULL; 1122 atomic_set(&devr->x0->usecnt, 0); 1123 mutex_init(&devr->x0->tgt_qp_mutex); 1124 INIT_LIST_HEAD(&devr->x0->tgt_qp_list); 1125 1126 devr->x1 = mlx5_ib_alloc_xrcd(&dev->ib_dev, NULL, NULL); 1127 if (IS_ERR(devr->x1)) { 1128 ret = PTR_ERR(devr->x1); 1129 goto error3; 1130 } 1131 devr->x1->device = &dev->ib_dev; 1132 devr->x1->inode = NULL; 1133 atomic_set(&devr->x1->usecnt, 0); 1134 mutex_init(&devr->x1->tgt_qp_mutex); 1135 INIT_LIST_HEAD(&devr->x1->tgt_qp_list); 1136 1137 memset(&attr, 0, sizeof(attr)); 1138 attr.attr.max_sge = 1; 1139 attr.attr.max_wr = 1; 1140 attr.srq_type = IB_SRQT_XRC; 1141 attr.ext.xrc.cq = devr->c0; 1142 attr.ext.xrc.xrcd = devr->x0; 1143 1144 devr->s0 = mlx5_ib_create_srq(devr->p0, &attr, NULL); 1145 if (IS_ERR(devr->s0)) { 1146 ret = PTR_ERR(devr->s0); 1147 goto error4; 1148 } 1149 devr->s0->device = &dev->ib_dev; 1150 devr->s0->pd = devr->p0; 1151 devr->s0->uobject = NULL; 1152 devr->s0->event_handler = NULL; 1153 devr->s0->srq_context = NULL; 1154 devr->s0->srq_type = IB_SRQT_XRC; 1155 devr->s0->ext.xrc.xrcd = devr->x0; 1156 devr->s0->ext.xrc.cq = devr->c0; 1157 atomic_inc(&devr->s0->ext.xrc.xrcd->usecnt); 1158 atomic_inc(&devr->s0->ext.xrc.cq->usecnt); 1159 atomic_inc(&devr->p0->usecnt); 1160 atomic_set(&devr->s0->usecnt, 0); 1161 1162 return 0; 1163 1164error4: 1165 mlx5_ib_dealloc_xrcd(devr->x1); 1166error3: 1167 mlx5_ib_dealloc_xrcd(devr->x0); 1168error2: 1169 mlx5_ib_destroy_cq(devr->c0); 1170error1: 1171 mlx5_ib_dealloc_pd(devr->p0); 1172error0: 1173 return ret; 1174} 1175 1176static void destroy_dev_resources(struct mlx5_ib_resources *devr) 1177{ 1178 mlx5_ib_destroy_srq(devr->s0); 1179 mlx5_ib_dealloc_xrcd(devr->x0); 1180 mlx5_ib_dealloc_xrcd(devr->x1); 1181 mlx5_ib_destroy_cq(devr->c0); 1182 mlx5_ib_dealloc_pd(devr->p0); 1183} 1184 1185static void *mlx5_ib_add(struct mlx5_core_dev *mdev) 1186{ 1187 struct mlx5_ib_dev *dev; 1188 int err; 1189 int i; 1190 1191 printk_once(KERN_INFO "%s", mlx5_version); 1192 1193 dev = (struct mlx5_ib_dev *)ib_alloc_device(sizeof(*dev)); 1194 if (!dev) 1195 return NULL; 1196 1197 dev->mdev = mdev; 1198 1199 err = get_port_caps(dev); 1200 if (err) 1201 goto err_dealloc; 1202 1203 get_ext_port_caps(dev); 1204 1205 MLX5_INIT_DOORBELL_LOCK(&dev->uar_lock); 1206 1207 strlcpy(dev->ib_dev.name, "mlx5_%d", IB_DEVICE_NAME_MAX); 1208 dev->ib_dev.owner = THIS_MODULE; 1209 dev->ib_dev.node_type = RDMA_NODE_IB_CA; 1210 dev->ib_dev.local_dma_lkey = mdev->caps.gen.reserved_lkey; 1211 dev->num_ports = mdev->caps.gen.num_ports; 1212 dev->ib_dev.phys_port_cnt = dev->num_ports; 1213 dev->ib_dev.num_comp_vectors = 1214 dev->mdev->priv.eq_table.num_comp_vectors; 1215 dev->ib_dev.dma_device = &mdev->pdev->dev; 1216 1217 dev->ib_dev.uverbs_abi_ver = MLX5_IB_UVERBS_ABI_VERSION; 1218 dev->ib_dev.uverbs_cmd_mask = 1219 (1ull << IB_USER_VERBS_CMD_GET_CONTEXT) | 1220 (1ull << IB_USER_VERBS_CMD_QUERY_DEVICE) | 1221 (1ull << IB_USER_VERBS_CMD_QUERY_PORT) | 1222 (1ull << IB_USER_VERBS_CMD_ALLOC_PD) | 1223 (1ull << IB_USER_VERBS_CMD_DEALLOC_PD) | 1224 (1ull << IB_USER_VERBS_CMD_REG_MR) | 1225 (1ull << IB_USER_VERBS_CMD_DEREG_MR) | 1226 (1ull << IB_USER_VERBS_CMD_CREATE_COMP_CHANNEL) | 1227 (1ull << IB_USER_VERBS_CMD_CREATE_CQ) | 1228 (1ull << IB_USER_VERBS_CMD_RESIZE_CQ) | 1229 (1ull << IB_USER_VERBS_CMD_DESTROY_CQ) | 1230 (1ull << IB_USER_VERBS_CMD_CREATE_QP) | 1231 (1ull << IB_USER_VERBS_CMD_MODIFY_QP) | 1232 (1ull << IB_USER_VERBS_CMD_QUERY_QP) | 1233 (1ull << IB_USER_VERBS_CMD_DESTROY_QP) | 1234 (1ull << IB_USER_VERBS_CMD_ATTACH_MCAST) | 1235 (1ull << IB_USER_VERBS_CMD_DETACH_MCAST) | 1236 (1ull << IB_USER_VERBS_CMD_CREATE_SRQ) | 1237 (1ull << IB_USER_VERBS_CMD_MODIFY_SRQ) | 1238 (1ull << IB_USER_VERBS_CMD_QUERY_SRQ) | 1239 (1ull << IB_USER_VERBS_CMD_DESTROY_SRQ) | 1240 (1ull << IB_USER_VERBS_CMD_CREATE_XSRQ) | 1241 (1ull << IB_USER_VERBS_CMD_OPEN_QP); 1242 dev->ib_dev.uverbs_ex_cmd_mask = 1243 (1ull << IB_USER_VERBS_EX_CMD_QUERY_DEVICE); 1244 1245 dev->ib_dev.query_device = mlx5_ib_query_device; 1246 dev->ib_dev.query_port = mlx5_ib_query_port; 1247 dev->ib_dev.query_gid = mlx5_ib_query_gid; 1248 dev->ib_dev.query_pkey = mlx5_ib_query_pkey; 1249 dev->ib_dev.modify_device = mlx5_ib_modify_device; 1250 dev->ib_dev.modify_port = mlx5_ib_modify_port; 1251 dev->ib_dev.alloc_ucontext = mlx5_ib_alloc_ucontext; 1252 dev->ib_dev.dealloc_ucontext = mlx5_ib_dealloc_ucontext; 1253 dev->ib_dev.mmap = mlx5_ib_mmap; 1254 dev->ib_dev.alloc_pd = mlx5_ib_alloc_pd; 1255 dev->ib_dev.dealloc_pd = mlx5_ib_dealloc_pd; 1256 dev->ib_dev.create_ah = mlx5_ib_create_ah; 1257 dev->ib_dev.query_ah = mlx5_ib_query_ah; 1258 dev->ib_dev.destroy_ah = mlx5_ib_destroy_ah; 1259 dev->ib_dev.create_srq = mlx5_ib_create_srq; 1260 dev->ib_dev.modify_srq = mlx5_ib_modify_srq; 1261 dev->ib_dev.query_srq = mlx5_ib_query_srq; 1262 dev->ib_dev.destroy_srq = mlx5_ib_destroy_srq; 1263 dev->ib_dev.post_srq_recv = mlx5_ib_post_srq_recv; 1264 dev->ib_dev.create_qp = mlx5_ib_create_qp; 1265 dev->ib_dev.modify_qp = mlx5_ib_modify_qp; 1266 dev->ib_dev.query_qp = mlx5_ib_query_qp; 1267 dev->ib_dev.destroy_qp = mlx5_ib_destroy_qp; 1268 dev->ib_dev.post_send = mlx5_ib_post_send; 1269 dev->ib_dev.post_recv = mlx5_ib_post_recv; 1270 dev->ib_dev.create_cq = mlx5_ib_create_cq; 1271 dev->ib_dev.modify_cq = mlx5_ib_modify_cq; 1272 dev->ib_dev.resize_cq = mlx5_ib_resize_cq; 1273 dev->ib_dev.destroy_cq = mlx5_ib_destroy_cq; 1274 dev->ib_dev.poll_cq = mlx5_ib_poll_cq; 1275 dev->ib_dev.req_notify_cq = mlx5_ib_arm_cq; 1276 dev->ib_dev.get_dma_mr = mlx5_ib_get_dma_mr; 1277 dev->ib_dev.reg_user_mr = mlx5_ib_reg_user_mr; 1278 dev->ib_dev.dereg_mr = mlx5_ib_dereg_mr; 1279 dev->ib_dev.destroy_mr = mlx5_ib_destroy_mr; 1280 dev->ib_dev.attach_mcast = mlx5_ib_mcg_attach; 1281 dev->ib_dev.detach_mcast = mlx5_ib_mcg_detach; 1282 dev->ib_dev.process_mad = mlx5_ib_process_mad; 1283 dev->ib_dev.create_mr = mlx5_ib_create_mr; 1284 dev->ib_dev.alloc_fast_reg_mr = mlx5_ib_alloc_fast_reg_mr; 1285 dev->ib_dev.alloc_fast_reg_page_list = mlx5_ib_alloc_fast_reg_page_list; 1286 dev->ib_dev.free_fast_reg_page_list = mlx5_ib_free_fast_reg_page_list; 1287 dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status; 1288 1289 mlx5_ib_internal_query_odp_caps(dev); 1290 1291 if (mdev->caps.gen.flags & MLX5_DEV_CAP_FLAG_XRC) { 1292 dev->ib_dev.alloc_xrcd = mlx5_ib_alloc_xrcd; 1293 dev->ib_dev.dealloc_xrcd = mlx5_ib_dealloc_xrcd; 1294 dev->ib_dev.uverbs_cmd_mask |= 1295 (1ull << IB_USER_VERBS_CMD_OPEN_XRCD) | 1296 (1ull << IB_USER_VERBS_CMD_CLOSE_XRCD); 1297 } 1298 1299 err = init_node_data(dev); 1300 if (err) 1301 goto err_dealloc; 1302 1303 mutex_init(&dev->cap_mask_mutex); 1304 1305 err = create_dev_resources(&dev->devr); 1306 if (err) 1307 goto err_dealloc; 1308 1309 err = mlx5_ib_odp_init_one(dev); 1310 if (err) 1311 goto err_rsrc; 1312 1313 err = ib_register_device(&dev->ib_dev, NULL); 1314 if (err) 1315 goto err_odp; 1316 1317 err = create_umr_res(dev); 1318 if (err) 1319 goto err_dev; 1320 1321 for (i = 0; i < ARRAY_SIZE(mlx5_class_attributes); i++) { 1322 err = device_create_file(&dev->ib_dev.dev, 1323 mlx5_class_attributes[i]); 1324 if (err) 1325 goto err_umrc; 1326 } 1327 1328 dev->ib_active = true; 1329 1330 return dev; 1331 1332err_umrc: 1333 destroy_umrc_res(dev); 1334 1335err_dev: 1336 ib_unregister_device(&dev->ib_dev); 1337 1338err_odp: 1339 mlx5_ib_odp_remove_one(dev); 1340 1341err_rsrc: 1342 destroy_dev_resources(&dev->devr); 1343 1344err_dealloc: 1345 ib_dealloc_device((struct ib_device *)dev); 1346 1347 return NULL; 1348} 1349 1350static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context) 1351{ 1352 struct mlx5_ib_dev *dev = context; 1353 1354 ib_unregister_device(&dev->ib_dev); 1355 destroy_umrc_res(dev); 1356 mlx5_ib_odp_remove_one(dev); 1357 destroy_dev_resources(&dev->devr); 1358 ib_dealloc_device(&dev->ib_dev); 1359} 1360 1361static struct mlx5_interface mlx5_ib_interface = { 1362 .add = mlx5_ib_add, 1363 .remove = mlx5_ib_remove, 1364 .event = mlx5_ib_event, 1365 .protocol = MLX5_INTERFACE_PROTOCOL_IB, 1366}; 1367 1368static int __init mlx5_ib_init(void) 1369{ 1370 int err; 1371 1372 if (deprecated_prof_sel != 2) 1373 pr_warn("prof_sel is deprecated for mlx5_ib, set it for mlx5_core\n"); 1374 1375 err = mlx5_ib_odp_init(); 1376 if (err) 1377 return err; 1378 1379 err = mlx5_register_interface(&mlx5_ib_interface); 1380 if (err) 1381 goto clean_odp; 1382 1383 return err; 1384 1385clean_odp: 1386 mlx5_ib_odp_cleanup(); 1387 return err; 1388} 1389 1390static void __exit mlx5_ib_cleanup(void) 1391{ 1392 mlx5_unregister_interface(&mlx5_ib_interface); 1393 mlx5_ib_odp_cleanup(); 1394} 1395 1396module_init(mlx5_ib_init); 1397module_exit(mlx5_ib_cleanup); 1398