1 /* 2 * Copyright (c) 2006, 2007 Cisco Systems. All rights reserved. 3 * Copyright (c) 2007, 2008 Mellanox Technologies. All rights reserved. 4 * 5 * This software is available to you under a choice of one of two 6 * licenses. You may choose to be licensed under the terms of the GNU 7 * General Public License (GPL) Version 2, available from the file 8 * COPYING in the main directory of this source tree, or the 9 * OpenIB.org BSD license below: 10 * 11 * Redistribution and use in source and binary forms, with or 12 * without modification, are permitted provided that the following 13 * conditions are met: 14 * 15 * - Redistributions of source code must retain the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer. 18 * 19 * - Redistributions in binary form must reproduce the above 20 * copyright notice, this list of conditions and the following 21 * disclaimer in the documentation and/or other materials 22 * provided with the distribution. 23 * 24 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 25 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 26 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 27 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 28 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 29 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 30 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 31 * SOFTWARE. 32 */ 33 34 #ifndef MLX4_IB_H 35 #define MLX4_IB_H 36 37 #include <linux/compiler.h> 38 #include <linux/list.h> 39 #include <linux/mutex.h> 40 #include <linux/idr.h> 41 #include <linux/notifier.h> 42 43 #include <rdma/ib_verbs.h> 44 #include <rdma/ib_umem.h> 45 #include <rdma/ib_mad.h> 46 #include <rdma/ib_sa.h> 47 48 #include <linux/mlx4/device.h> 49 #include <linux/mlx4/doorbell.h> 50 #include <linux/mlx4/qp.h> 51 #include <linux/mlx4/cq.h> 52 53 #define MLX4_IB_DRV_NAME "mlx4_ib" 54 55 #ifdef pr_fmt 56 #undef pr_fmt 57 #endif 58 #define pr_fmt(fmt) "<" MLX4_IB_DRV_NAME "> %s: " fmt, __func__ 59 60 #define mlx4_ib_warn(ibdev, format, arg...) \ 61 dev_warn((ibdev)->dev.parent, MLX4_IB_DRV_NAME ": " format, ## arg) 62 63 enum { 64 MLX4_IB_SQ_MIN_WQE_SHIFT = 6, 65 MLX4_IB_MAX_HEADROOM = 2048 66 }; 67 68 #define MLX4_IB_SQ_HEADROOM(shift) ((MLX4_IB_MAX_HEADROOM >> (shift)) + 1) 69 #define MLX4_IB_SQ_MAX_SPARE (MLX4_IB_SQ_HEADROOM(MLX4_IB_SQ_MIN_WQE_SHIFT)) 70 71 /*module param to indicate if SM assigns the alias_GUID*/ 72 extern int mlx4_ib_sm_guid_assign; 73 74 #define MLX4_IB_UC_STEER_QPN_ALIGN 1 75 #define MLX4_IB_UC_MAX_NUM_QPS 256 76 77 enum hw_bar_type { 78 HW_BAR_BF, 79 HW_BAR_DB, 80 HW_BAR_CLOCK, 81 HW_BAR_COUNT 82 }; 83 84 struct mlx4_ib_ucontext { 85 struct ib_ucontext ibucontext; 86 struct mlx4_uar uar; 87 struct list_head db_page_list; 88 struct mutex db_page_mutex; 89 struct list_head wqn_ranges_list; 90 struct mutex wqn_ranges_mutex; /* protect wqn_ranges_list */ 91 }; 92 93 struct mlx4_ib_pd { 94 struct ib_pd ibpd; 95 u32 pdn; 96 }; 97 98 struct mlx4_ib_xrcd { 99 struct ib_xrcd ibxrcd; 100 u32 xrcdn; 101 struct ib_pd *pd; 102 struct ib_cq *cq; 103 }; 104 105 struct mlx4_ib_cq_buf { 106 struct mlx4_buf buf; 107 struct mlx4_mtt mtt; 108 int entry_size; 109 }; 110 111 struct mlx4_ib_cq_resize { 112 struct mlx4_ib_cq_buf buf; 113 int cqe; 114 }; 115 116 struct mlx4_ib_cq { 117 struct ib_cq ibcq; 118 struct mlx4_cq mcq; 119 struct mlx4_ib_cq_buf buf; 120 struct mlx4_ib_cq_resize *resize_buf; 121 struct mlx4_db db; 122 spinlock_t lock; 123 struct mutex resize_mutex; 124 struct ib_umem *umem; 125 struct ib_umem *resize_umem; 126 int create_flags; 127 /* List of qps that it serves.*/ 128 struct list_head send_qp_list; 129 struct list_head recv_qp_list; 130 }; 131 132 #define MLX4_MR_PAGES_ALIGN 0x40 133 134 struct mlx4_ib_mr { 135 struct ib_mr ibmr; 136 __be64 *pages; 137 dma_addr_t page_map; 138 u32 npages; 139 u32 max_pages; 140 struct mlx4_mr mmr; 141 struct ib_umem *umem; 142 size_t page_map_size; 143 }; 144 145 struct mlx4_ib_mw { 146 struct ib_mw ibmw; 147 struct mlx4_mw mmw; 148 }; 149 150 #define MAX_REGS_PER_FLOW 2 151 152 struct mlx4_flow_reg_id { 153 u64 id; 154 u64 mirror; 155 }; 156 157 struct mlx4_ib_flow { 158 struct ib_flow ibflow; 159 /* translating DMFS verbs sniffer rule to FW API requires two reg IDs */ 160 struct mlx4_flow_reg_id reg_id[MAX_REGS_PER_FLOW]; 161 }; 162 163 struct mlx4_ib_wq { 164 u64 *wrid; 165 spinlock_t lock; 166 int wqe_cnt; 167 int max_post; 168 int max_gs; 169 int offset; 170 int wqe_shift; 171 unsigned head; 172 unsigned tail; 173 }; 174 175 enum { 176 MLX4_IB_QP_CREATE_ROCE_V2_GSI = IB_QP_CREATE_RESERVED_START 177 }; 178 179 enum mlx4_ib_qp_flags { 180 MLX4_IB_QP_LSO = IB_QP_CREATE_IPOIB_UD_LSO, 181 MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK = IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK, 182 MLX4_IB_QP_NETIF = IB_QP_CREATE_NETIF_QP, 183 MLX4_IB_QP_SCATTER_FCS = IB_QP_CREATE_SCATTER_FCS, 184 185 /* Mellanox specific flags start from IB_QP_CREATE_RESERVED_START */ 186 MLX4_IB_ROCE_V2_GSI_QP = MLX4_IB_QP_CREATE_ROCE_V2_GSI, 187 MLX4_IB_SRIOV_TUNNEL_QP = 1 << 30, 188 MLX4_IB_SRIOV_SQP = 1 << 31, 189 }; 190 191 struct mlx4_ib_gid_entry { 192 struct list_head list; 193 union ib_gid gid; 194 int added; 195 u8 port; 196 }; 197 198 enum mlx4_ib_qp_type { 199 /* 200 * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries 201 * here (and in that order) since the MAD layer uses them as 202 * indices into a 2-entry table. 203 */ 204 MLX4_IB_QPT_SMI = IB_QPT_SMI, 205 MLX4_IB_QPT_GSI = IB_QPT_GSI, 206 207 MLX4_IB_QPT_RC = IB_QPT_RC, 208 MLX4_IB_QPT_UC = IB_QPT_UC, 209 MLX4_IB_QPT_UD = IB_QPT_UD, 210 MLX4_IB_QPT_RAW_IPV6 = IB_QPT_RAW_IPV6, 211 MLX4_IB_QPT_RAW_ETHERTYPE = IB_QPT_RAW_ETHERTYPE, 212 MLX4_IB_QPT_RAW_PACKET = IB_QPT_RAW_PACKET, 213 MLX4_IB_QPT_XRC_INI = IB_QPT_XRC_INI, 214 MLX4_IB_QPT_XRC_TGT = IB_QPT_XRC_TGT, 215 216 MLX4_IB_QPT_PROXY_SMI_OWNER = 1 << 16, 217 MLX4_IB_QPT_PROXY_SMI = 1 << 17, 218 MLX4_IB_QPT_PROXY_GSI = 1 << 18, 219 MLX4_IB_QPT_TUN_SMI_OWNER = 1 << 19, 220 MLX4_IB_QPT_TUN_SMI = 1 << 20, 221 MLX4_IB_QPT_TUN_GSI = 1 << 21, 222 }; 223 224 #define MLX4_IB_QPT_ANY_SRIOV (MLX4_IB_QPT_PROXY_SMI_OWNER | \ 225 MLX4_IB_QPT_PROXY_SMI | MLX4_IB_QPT_PROXY_GSI | MLX4_IB_QPT_TUN_SMI_OWNER | \ 226 MLX4_IB_QPT_TUN_SMI | MLX4_IB_QPT_TUN_GSI) 227 228 enum mlx4_ib_mad_ifc_flags { 229 MLX4_MAD_IFC_IGNORE_MKEY = 1, 230 MLX4_MAD_IFC_IGNORE_BKEY = 2, 231 MLX4_MAD_IFC_IGNORE_KEYS = (MLX4_MAD_IFC_IGNORE_MKEY | 232 MLX4_MAD_IFC_IGNORE_BKEY), 233 MLX4_MAD_IFC_NET_VIEW = 4, 234 }; 235 236 enum { 237 MLX4_NUM_TUNNEL_BUFS = 512, 238 MLX4_NUM_WIRE_BUFS = 2048, 239 }; 240 241 struct mlx4_ib_tunnel_header { 242 struct mlx4_av av; 243 __be32 remote_qpn; 244 __be32 qkey; 245 __be16 vlan; 246 u8 mac[6]; 247 __be16 pkey_index; 248 u8 reserved[6]; 249 }; 250 251 struct mlx4_ib_buf { 252 void *addr; 253 dma_addr_t map; 254 }; 255 256 struct mlx4_rcv_tunnel_hdr { 257 __be32 flags_src_qp; /* flags[6:5] is defined for VLANs: 258 * 0x0 - no vlan was in the packet 259 * 0x01 - C-VLAN was in the packet */ 260 u8 g_ml_path; /* gid bit stands for ipv6/4 header in RoCE */ 261 u8 reserved; 262 __be16 pkey_index; 263 __be16 sl_vid; 264 __be16 slid_mac_47_32; 265 __be32 mac_31_0; 266 }; 267 268 struct mlx4_ib_proxy_sqp_hdr { 269 struct ib_grh grh; 270 struct mlx4_rcv_tunnel_hdr tun; 271 } __packed; 272 273 struct mlx4_roce_smac_vlan_info { 274 u64 smac; 275 int smac_index; 276 int smac_port; 277 u64 candidate_smac; 278 int candidate_smac_index; 279 int candidate_smac_port; 280 u16 vid; 281 int vlan_index; 282 int vlan_port; 283 u16 candidate_vid; 284 int candidate_vlan_index; 285 int candidate_vlan_port; 286 int update_vid; 287 }; 288 289 struct mlx4_wqn_range { 290 int base_wqn; 291 int size; 292 int refcount; 293 bool dirty; 294 struct list_head list; 295 }; 296 297 struct mlx4_ib_rss { 298 unsigned int base_qpn_tbl_sz; 299 u8 flags; 300 u8 rss_key[MLX4_EN_RSS_KEY_SIZE]; 301 }; 302 303 enum { 304 /* 305 * Largest possible UD header: send with GRH and immediate 306 * data plus 18 bytes for an Ethernet header with VLAN/802.1Q 307 * tag. (LRH would only use 8 bytes, so Ethernet is the 308 * biggest case) 309 */ 310 MLX4_IB_UD_HEADER_SIZE = 82, 311 MLX4_IB_LSO_HEADER_SPARE = 128, 312 }; 313 314 struct mlx4_ib_sqp { 315 int pkey_index; 316 u32 qkey; 317 u32 send_psn; 318 struct ib_ud_header ud_header; 319 u8 header_buf[MLX4_IB_UD_HEADER_SIZE]; 320 struct ib_qp *roce_v2_gsi; 321 }; 322 323 struct mlx4_ib_qp { 324 union { 325 struct ib_qp ibqp; 326 struct ib_wq ibwq; 327 }; 328 struct mlx4_qp mqp; 329 struct mlx4_buf buf; 330 331 struct mlx4_db db; 332 struct mlx4_ib_wq rq; 333 334 u32 doorbell_qpn; 335 __be32 sq_signal_bits; 336 unsigned sq_next_wqe; 337 int sq_spare_wqes; 338 struct mlx4_ib_wq sq; 339 340 enum mlx4_ib_qp_type mlx4_ib_qp_type; 341 struct ib_umem *umem; 342 struct mlx4_mtt mtt; 343 int buf_size; 344 struct mutex mutex; 345 u16 xrcdn; 346 u32 flags; 347 u8 port; 348 u8 alt_port; 349 u8 atomic_rd_en; 350 u8 resp_depth; 351 u8 sq_no_prefetch; 352 u8 state; 353 int mlx_type; 354 u32 inl_recv_sz; 355 struct list_head gid_list; 356 struct list_head steering_rules; 357 struct mlx4_ib_buf *sqp_proxy_rcv; 358 struct mlx4_roce_smac_vlan_info pri; 359 struct mlx4_roce_smac_vlan_info alt; 360 u64 reg_id; 361 struct list_head qps_list; 362 struct list_head cq_recv_list; 363 struct list_head cq_send_list; 364 struct counter_index *counter_index; 365 struct mlx4_wqn_range *wqn_range; 366 /* Number of RSS QP parents that uses this WQ */ 367 u32 rss_usecnt; 368 union { 369 struct mlx4_ib_rss *rss_ctx; 370 struct mlx4_ib_sqp *sqp; 371 }; 372 }; 373 374 struct mlx4_ib_srq { 375 struct ib_srq ibsrq; 376 struct mlx4_srq msrq; 377 struct mlx4_buf buf; 378 struct mlx4_db db; 379 u64 *wrid; 380 spinlock_t lock; 381 int head; 382 int tail; 383 u16 wqe_ctr; 384 struct ib_umem *umem; 385 struct mlx4_mtt mtt; 386 struct mutex mutex; 387 }; 388 389 struct mlx4_ib_ah { 390 struct ib_ah ibah; 391 union mlx4_ext_av av; 392 }; 393 394 struct mlx4_ib_rwq_ind_table { 395 struct ib_rwq_ind_table ib_rwq_ind_tbl; 396 }; 397 398 /****************************************/ 399 /* alias guid support */ 400 /****************************************/ 401 #define NUM_PORT_ALIAS_GUID 2 402 #define NUM_ALIAS_GUID_IN_REC 8 403 #define NUM_ALIAS_GUID_REC_IN_PORT 16 404 #define GUID_REC_SIZE 8 405 #define NUM_ALIAS_GUID_PER_PORT 128 406 #define MLX4_NOT_SET_GUID (0x00LL) 407 #define MLX4_GUID_FOR_DELETE_VAL (~(0x00LL)) 408 409 enum mlx4_guid_alias_rec_status { 410 MLX4_GUID_INFO_STATUS_IDLE, 411 MLX4_GUID_INFO_STATUS_SET, 412 }; 413 414 #define GUID_STATE_NEED_PORT_INIT 0x01 415 416 enum mlx4_guid_alias_rec_method { 417 MLX4_GUID_INFO_RECORD_SET = IB_MGMT_METHOD_SET, 418 MLX4_GUID_INFO_RECORD_DELETE = IB_SA_METHOD_DELETE, 419 }; 420 421 struct mlx4_sriov_alias_guid_info_rec_det { 422 u8 all_recs[GUID_REC_SIZE * NUM_ALIAS_GUID_IN_REC]; 423 ib_sa_comp_mask guid_indexes; /*indicates what from the 8 records are valid*/ 424 enum mlx4_guid_alias_rec_status status; /*indicates the administraively status of the record.*/ 425 unsigned int guids_retry_schedule[NUM_ALIAS_GUID_IN_REC]; 426 u64 time_to_run; 427 }; 428 429 struct mlx4_sriov_alias_guid_port_rec_det { 430 struct mlx4_sriov_alias_guid_info_rec_det all_rec_per_port[NUM_ALIAS_GUID_REC_IN_PORT]; 431 struct workqueue_struct *wq; 432 struct delayed_work alias_guid_work; 433 u32 port; 434 u32 state_flags; 435 struct mlx4_sriov_alias_guid *parent; 436 struct list_head cb_list; 437 }; 438 439 struct mlx4_sriov_alias_guid { 440 struct mlx4_sriov_alias_guid_port_rec_det ports_guid[MLX4_MAX_PORTS]; 441 spinlock_t ag_work_lock; 442 struct ib_sa_client *sa_client; 443 }; 444 445 struct mlx4_ib_demux_work { 446 struct work_struct work; 447 struct mlx4_ib_dev *dev; 448 int slave; 449 int do_init; 450 u8 port; 451 452 }; 453 454 struct mlx4_ib_tun_tx_buf { 455 struct mlx4_ib_buf buf; 456 struct ib_ah *ah; 457 }; 458 459 struct mlx4_ib_demux_pv_qp { 460 struct ib_qp *qp; 461 enum ib_qp_type proxy_qpt; 462 struct mlx4_ib_buf *ring; 463 struct mlx4_ib_tun_tx_buf *tx_ring; 464 spinlock_t tx_lock; 465 unsigned tx_ix_head; 466 unsigned tx_ix_tail; 467 }; 468 469 enum mlx4_ib_demux_pv_state { 470 DEMUX_PV_STATE_DOWN, 471 DEMUX_PV_STATE_STARTING, 472 DEMUX_PV_STATE_ACTIVE, 473 DEMUX_PV_STATE_DOWNING, 474 }; 475 476 struct mlx4_ib_demux_pv_ctx { 477 int port; 478 int slave; 479 enum mlx4_ib_demux_pv_state state; 480 int has_smi; 481 struct ib_device *ib_dev; 482 struct ib_cq *cq; 483 struct ib_pd *pd; 484 struct work_struct work; 485 struct workqueue_struct *wq; 486 struct workqueue_struct *wi_wq; 487 struct mlx4_ib_demux_pv_qp qp[2]; 488 }; 489 490 struct mlx4_ib_demux_ctx { 491 struct ib_device *ib_dev; 492 int port; 493 struct workqueue_struct *wq; 494 struct workqueue_struct *wi_wq; 495 struct workqueue_struct *ud_wq; 496 spinlock_t ud_lock; 497 atomic64_t subnet_prefix; 498 __be64 guid_cache[128]; 499 struct mlx4_ib_dev *dev; 500 /* the following lock protects both mcg_table and mcg_mgid0_list */ 501 struct mutex mcg_table_lock; 502 struct rb_root mcg_table; 503 struct list_head mcg_mgid0_list; 504 struct workqueue_struct *mcg_wq; 505 struct mlx4_ib_demux_pv_ctx **tun; 506 atomic_t tid; 507 int flushing; /* flushing the work queue */ 508 }; 509 510 struct mlx4_ib_sriov { 511 struct mlx4_ib_demux_ctx demux[MLX4_MAX_PORTS]; 512 struct mlx4_ib_demux_pv_ctx *sqps[MLX4_MAX_PORTS]; 513 /* when using this spinlock you should use "irq" because 514 * it may be called from interrupt context.*/ 515 spinlock_t going_down_lock; 516 int is_going_down; 517 518 struct mlx4_sriov_alias_guid alias_guid; 519 520 /* CM paravirtualization fields */ 521 struct xarray pv_id_table; 522 u32 pv_id_next; 523 spinlock_t id_map_lock; 524 struct rb_root sl_id_map; 525 struct list_head cm_list; 526 struct xarray xa_rej_tmout; 527 }; 528 529 struct gid_cache_context { 530 int real_index; 531 int refcount; 532 }; 533 534 struct gid_entry { 535 union ib_gid gid; 536 enum ib_gid_type gid_type; 537 struct gid_cache_context *ctx; 538 u16 vlan_id; 539 }; 540 541 struct mlx4_port_gid_table { 542 struct gid_entry gids[MLX4_MAX_PORT_GIDS]; 543 }; 544 545 struct mlx4_ib_iboe { 546 spinlock_t lock; 547 struct net_device *netdevs[MLX4_MAX_PORTS]; 548 atomic64_t mac[MLX4_MAX_PORTS]; 549 struct notifier_block nb; 550 struct mlx4_port_gid_table gids[MLX4_MAX_PORTS]; 551 enum ib_port_state last_port_state[MLX4_MAX_PORTS]; 552 }; 553 554 struct pkey_mgt { 555 u8 virt2phys_pkey[MLX4_MFUNC_MAX][MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS]; 556 u16 phys_pkey_cache[MLX4_MAX_PORTS][MLX4_MAX_PORT_PKEYS]; 557 struct list_head pkey_port_list[MLX4_MFUNC_MAX]; 558 struct kobject *device_parent[MLX4_MFUNC_MAX]; 559 }; 560 561 struct mlx4_ib_iov_sysfs_attr { 562 void *ctx; 563 struct kobject *kobj; 564 unsigned long data; 565 u32 entry_num; 566 char name[15]; 567 struct device_attribute dentry; 568 struct device *dev; 569 }; 570 571 struct mlx4_ib_iov_sysfs_attr_ar { 572 struct mlx4_ib_iov_sysfs_attr dentries[3 * NUM_ALIAS_GUID_PER_PORT + 1]; 573 }; 574 575 struct mlx4_ib_iov_port { 576 char name[100]; 577 u8 num; 578 struct mlx4_ib_dev *dev; 579 struct list_head list; 580 struct mlx4_ib_iov_sysfs_attr_ar *dentr_ar; 581 struct ib_port_attr attr; 582 struct kobject *cur_port; 583 struct kobject *admin_alias_parent; 584 struct kobject *gids_parent; 585 struct kobject *pkeys_parent; 586 struct kobject *mcgs_parent; 587 struct mlx4_ib_iov_sysfs_attr mcg_dentry; 588 }; 589 590 struct counter_index { 591 struct list_head list; 592 u32 index; 593 u8 allocated; 594 }; 595 596 struct mlx4_ib_counters { 597 struct list_head counters_list; 598 struct mutex mutex; /* mutex for accessing counters list */ 599 u32 default_counter; 600 }; 601 602 #define MLX4_DIAG_COUNTERS_TYPES 2 603 604 struct mlx4_ib_diag_counters { 605 struct rdma_stat_desc *descs; 606 u32 *offset; 607 u32 num_counters; 608 }; 609 610 struct mlx4_ib_dev { 611 struct ib_device ib_dev; 612 struct mlx4_dev *dev; 613 int num_ports; 614 void __iomem *uar_map; 615 616 struct mlx4_uar priv_uar; 617 u32 priv_pdn; 618 MLX4_DECLARE_DOORBELL_LOCK(uar_lock); 619 620 struct ib_mad_agent *send_agent[MLX4_MAX_PORTS][2]; 621 struct ib_ah *sm_ah[MLX4_MAX_PORTS]; 622 spinlock_t sm_lock; 623 atomic64_t sl2vl[MLX4_MAX_PORTS]; 624 struct mlx4_ib_sriov sriov; 625 626 struct mutex cap_mask_mutex; 627 bool ib_active; 628 struct mlx4_ib_iboe iboe; 629 struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS]; 630 int *eq_table; 631 struct kobject *iov_parent; 632 struct kobject *ports_parent; 633 struct kobject *dev_ports_parent[MLX4_MFUNC_MAX]; 634 struct mlx4_ib_iov_port iov_ports[MLX4_MAX_PORTS]; 635 struct pkey_mgt pkeys; 636 unsigned long *ib_uc_qpns_bitmap; 637 int steer_qpn_count; 638 int steer_qpn_base; 639 int steering_support; 640 struct mlx4_ib_qp *qp1_proxy[MLX4_MAX_PORTS]; 641 /* lock when destroying qp1_proxy and getting netdev events */ 642 struct mutex qp1_proxy_lock[MLX4_MAX_PORTS]; 643 u8 bond_next_port; 644 /* protect resources needed as part of reset flow */ 645 spinlock_t reset_flow_resource_lock; 646 struct list_head qp_list; 647 struct mlx4_ib_diag_counters diag_counters[MLX4_DIAG_COUNTERS_TYPES]; 648 struct notifier_block mlx_nb; 649 }; 650 651 struct ib_event_work { 652 struct work_struct work; 653 struct mlx4_ib_dev *ib_dev; 654 struct mlx4_eqe ib_eqe; 655 int port; 656 }; 657 658 struct mlx4_ib_qp_tunnel_init_attr { 659 struct ib_qp_init_attr init_attr; 660 int slave; 661 enum ib_qp_type proxy_qp_type; 662 u32 port; 663 }; 664 665 struct mlx4_uverbs_ex_query_device { 666 __u32 comp_mask; 667 __u32 reserved; 668 }; 669 to_mdev(struct ib_device * ibdev)670 static inline struct mlx4_ib_dev *to_mdev(struct ib_device *ibdev) 671 { 672 return container_of(ibdev, struct mlx4_ib_dev, ib_dev); 673 } 674 to_mucontext(struct ib_ucontext * ibucontext)675 static inline struct mlx4_ib_ucontext *to_mucontext(struct ib_ucontext *ibucontext) 676 { 677 return container_of(ibucontext, struct mlx4_ib_ucontext, ibucontext); 678 } 679 to_mpd(struct ib_pd * ibpd)680 static inline struct mlx4_ib_pd *to_mpd(struct ib_pd *ibpd) 681 { 682 return container_of(ibpd, struct mlx4_ib_pd, ibpd); 683 } 684 to_mxrcd(struct ib_xrcd * ibxrcd)685 static inline struct mlx4_ib_xrcd *to_mxrcd(struct ib_xrcd *ibxrcd) 686 { 687 return container_of(ibxrcd, struct mlx4_ib_xrcd, ibxrcd); 688 } 689 to_mcq(struct ib_cq * ibcq)690 static inline struct mlx4_ib_cq *to_mcq(struct ib_cq *ibcq) 691 { 692 return container_of(ibcq, struct mlx4_ib_cq, ibcq); 693 } 694 to_mibcq(struct mlx4_cq * mcq)695 static inline struct mlx4_ib_cq *to_mibcq(struct mlx4_cq *mcq) 696 { 697 return container_of(mcq, struct mlx4_ib_cq, mcq); 698 } 699 to_mmr(struct ib_mr * ibmr)700 static inline struct mlx4_ib_mr *to_mmr(struct ib_mr *ibmr) 701 { 702 return container_of(ibmr, struct mlx4_ib_mr, ibmr); 703 } 704 to_mmw(struct ib_mw * ibmw)705 static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw) 706 { 707 return container_of(ibmw, struct mlx4_ib_mw, ibmw); 708 } 709 to_mflow(struct ib_flow * ibflow)710 static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow) 711 { 712 return container_of(ibflow, struct mlx4_ib_flow, ibflow); 713 } 714 to_mqp(struct ib_qp * ibqp)715 static inline struct mlx4_ib_qp *to_mqp(struct ib_qp *ibqp) 716 { 717 return container_of(ibqp, struct mlx4_ib_qp, ibqp); 718 } 719 to_mibqp(struct mlx4_qp * mqp)720 static inline struct mlx4_ib_qp *to_mibqp(struct mlx4_qp *mqp) 721 { 722 return container_of(mqp, struct mlx4_ib_qp, mqp); 723 } 724 to_msrq(struct ib_srq * ibsrq)725 static inline struct mlx4_ib_srq *to_msrq(struct ib_srq *ibsrq) 726 { 727 return container_of(ibsrq, struct mlx4_ib_srq, ibsrq); 728 } 729 to_mibsrq(struct mlx4_srq * msrq)730 static inline struct mlx4_ib_srq *to_mibsrq(struct mlx4_srq *msrq) 731 { 732 return container_of(msrq, struct mlx4_ib_srq, msrq); 733 } 734 to_mah(struct ib_ah * ibah)735 static inline struct mlx4_ib_ah *to_mah(struct ib_ah *ibah) 736 { 737 return container_of(ibah, struct mlx4_ib_ah, ibah); 738 } 739 mlx4_ib_bond_next_port(struct mlx4_ib_dev * dev)740 static inline u8 mlx4_ib_bond_next_port(struct mlx4_ib_dev *dev) 741 { 742 dev->bond_next_port = (dev->bond_next_port + 1) % dev->num_ports; 743 744 return dev->bond_next_port + 1; 745 } 746 747 int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev); 748 void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev); 749 750 int mlx4_ib_db_map_user(struct ib_udata *udata, unsigned long virt, 751 struct mlx4_db *db); 752 void mlx4_ib_db_unmap_user(struct mlx4_ib_ucontext *context, struct mlx4_db *db); 753 754 struct ib_mr *mlx4_ib_get_dma_mr(struct ib_pd *pd, int acc); 755 int mlx4_ib_umem_write_mtt(struct mlx4_ib_dev *dev, struct mlx4_mtt *mtt, 756 struct ib_umem *umem); 757 struct ib_mr *mlx4_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, 758 u64 virt_addr, int access_flags, 759 struct ib_udata *udata); 760 int mlx4_ib_dereg_mr(struct ib_mr *mr, struct ib_udata *udata); 761 int mlx4_ib_alloc_mw(struct ib_mw *mw, struct ib_udata *udata); 762 int mlx4_ib_dealloc_mw(struct ib_mw *mw); 763 struct ib_mr *mlx4_ib_alloc_mr(struct ib_pd *pd, enum ib_mr_type mr_type, 764 u32 max_num_sg); 765 int mlx4_ib_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, int sg_nents, 766 unsigned int *sg_offset); 767 int mlx4_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); 768 int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata); 769 int mlx4_ib_create_cq(struct ib_cq *ibcq, const struct ib_cq_init_attr *attr, 770 struct uverbs_attr_bundle *attrs); 771 int mlx4_ib_destroy_cq(struct ib_cq *cq, struct ib_udata *udata); 772 int mlx4_ib_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc); 773 int mlx4_ib_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags); 774 void __mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); 775 void mlx4_ib_cq_clean(struct mlx4_ib_cq *cq, u32 qpn, struct mlx4_ib_srq *srq); 776 777 int mlx4_ib_create_ah(struct ib_ah *ah, struct rdma_ah_init_attr *init_attr, 778 struct ib_udata *udata); 779 int mlx4_ib_create_ah_slave(struct ib_ah *ah, struct rdma_ah_attr *ah_attr, 780 int slave_sgid_index, u8 *s_mac, u16 vlan_tag); 781 int mlx4_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr); mlx4_ib_destroy_ah(struct ib_ah * ah,u32 flags)782 static inline int mlx4_ib_destroy_ah(struct ib_ah *ah, u32 flags) 783 { 784 return 0; 785 } 786 787 int mlx4_ib_create_srq(struct ib_srq *srq, struct ib_srq_init_attr *init_attr, 788 struct ib_udata *udata); 789 int mlx4_ib_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr, 790 enum ib_srq_attr_mask attr_mask, struct ib_udata *udata); 791 int mlx4_ib_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr); 792 int mlx4_ib_destroy_srq(struct ib_srq *srq, struct ib_udata *udata); 793 void mlx4_ib_free_srq_wqe(struct mlx4_ib_srq *srq, int wqe_index); 794 int mlx4_ib_post_srq_recv(struct ib_srq *ibsrq, const struct ib_recv_wr *wr, 795 const struct ib_recv_wr **bad_wr); 796 797 int mlx4_ib_create_qp(struct ib_qp *qp, struct ib_qp_init_attr *init_attr, 798 struct ib_udata *udata); 799 int mlx4_ib_destroy_qp(struct ib_qp *qp, struct ib_udata *udata); 800 void mlx4_ib_drain_sq(struct ib_qp *qp); 801 void mlx4_ib_drain_rq(struct ib_qp *qp); 802 int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, 803 int attr_mask, struct ib_udata *udata); 804 int mlx4_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *qp_attr, int qp_attr_mask, 805 struct ib_qp_init_attr *qp_init_attr); 806 int mlx4_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr, 807 const struct ib_send_wr **bad_wr); 808 int mlx4_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr, 809 const struct ib_recv_wr **bad_wr); 810 811 int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags, 812 int port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, 813 const void *in_mad, void *response_mad); 814 int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num, 815 const struct ib_wc *in_wc, const struct ib_grh *in_grh, 816 const struct ib_mad *in, struct ib_mad *out, 817 size_t *out_mad_size, u16 *out_mad_pkey_index); 818 int mlx4_ib_mad_init(struct mlx4_ib_dev *dev); 819 void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev); 820 821 int __mlx4_ib_query_port(struct ib_device *ibdev, u32 port, 822 struct ib_port_attr *props, int netw_view); 823 int __mlx4_ib_query_pkey(struct ib_device *ibdev, u32 port, u16 index, 824 u16 *pkey, int netw_view); 825 826 int __mlx4_ib_query_gid(struct ib_device *ibdev, u32 port, int index, 827 union ib_gid *gid, int netw_view); 828 mlx4_ib_ah_grh_present(struct mlx4_ib_ah * ah)829 static inline bool mlx4_ib_ah_grh_present(struct mlx4_ib_ah *ah) 830 { 831 u32 port = be32_to_cpu(ah->av.ib.port_pd) >> 24 & 3; 832 833 if (rdma_port_get_link_layer(ah->ibah.device, port) == IB_LINK_LAYER_ETHERNET) 834 return true; 835 836 return !!(ah->av.ib.g_slid & 0x80); 837 } 838 839 int mlx4_ib_mcg_port_init(struct mlx4_ib_demux_ctx *ctx); 840 void mlx4_ib_mcg_port_cleanup(struct mlx4_ib_demux_ctx *ctx, int destroy_wq); 841 void clean_vf_mcast(struct mlx4_ib_demux_ctx *ctx, int slave); 842 int mlx4_ib_mcg_init(void); 843 void mlx4_ib_mcg_destroy(void); 844 845 int mlx4_ib_find_real_gid(struct ib_device *ibdev, u32 port, __be64 guid); 846 847 int mlx4_ib_mcg_multiplex_handler(struct ib_device *ibdev, int port, int slave, 848 struct ib_sa_mad *sa_mad); 849 int mlx4_ib_mcg_demux_handler(struct ib_device *ibdev, int port, int slave, 850 struct ib_sa_mad *mad); 851 852 int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, 853 union ib_gid *gid); 854 855 void mlx4_ib_dispatch_event(struct mlx4_ib_dev *dev, u32 port_num, 856 enum ib_event_type type); 857 858 void mlx4_ib_tunnels_update_work(struct work_struct *work); 859 860 int mlx4_ib_send_to_slave(struct mlx4_ib_dev *dev, int slave, u32 port, 861 enum ib_qp_type qpt, struct ib_wc *wc, 862 struct ib_grh *grh, struct ib_mad *mad); 863 864 int mlx4_ib_send_to_wire(struct mlx4_ib_dev *dev, int slave, u32 port, 865 enum ib_qp_type dest_qpt, u16 pkey_index, u32 remote_qpn, 866 u32 qkey, struct rdma_ah_attr *attr, u8 *s_mac, 867 u16 vlan_id, struct ib_mad *mad); 868 869 __be64 mlx4_ib_get_new_demux_tid(struct mlx4_ib_demux_ctx *ctx); 870 871 int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave, 872 struct ib_mad *mad); 873 874 int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id, 875 struct ib_mad *mad); 876 877 void mlx4_ib_cm_paravirt_init(struct mlx4_ib_dev *dev); 878 void mlx4_ib_cm_paravirt_clean(struct mlx4_ib_dev *dev, int slave_id); 879 880 /* alias guid support */ 881 void mlx4_ib_init_alias_guid_work(struct mlx4_ib_dev *dev, int port); 882 int mlx4_ib_init_alias_guid_service(struct mlx4_ib_dev *dev); 883 void mlx4_ib_destroy_alias_guid_service(struct mlx4_ib_dev *dev); 884 void mlx4_ib_invalidate_all_guid_record(struct mlx4_ib_dev *dev, int port); 885 886 void mlx4_ib_notify_slaves_on_guid_change(struct mlx4_ib_dev *dev, 887 int block_num, 888 u32 port_num, u8 *p_data); 889 890 void mlx4_ib_update_cache_on_guid_change(struct mlx4_ib_dev *dev, 891 int block_num, u32 port_num, 892 u8 *p_data); 893 894 int add_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, 895 struct attribute *attr); 896 void del_sysfs_port_mcg_attr(struct mlx4_ib_dev *device, int port_num, 897 struct attribute *attr); 898 ib_sa_comp_mask mlx4_ib_get_aguid_comp_mask_from_ix(int index); 899 void mlx4_ib_slave_alias_guid_event(struct mlx4_ib_dev *dev, int slave, 900 int port, int slave_init); 901 902 int mlx4_ib_device_register_sysfs(struct mlx4_ib_dev *device) ; 903 904 void mlx4_ib_device_unregister_sysfs(struct mlx4_ib_dev *device); 905 906 __be64 mlx4_ib_gen_node_guid(void); 907 908 int mlx4_ib_steer_qp_alloc(struct mlx4_ib_dev *dev, int count, int *qpn); 909 void mlx4_ib_steer_qp_free(struct mlx4_ib_dev *dev, u32 qpn, int count); 910 int mlx4_ib_steer_qp_reg(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp, 911 int is_attach); 912 struct ib_mr *mlx4_ib_rereg_user_mr(struct ib_mr *mr, int flags, u64 start, 913 u64 length, u64 virt_addr, 914 int mr_access_flags, struct ib_pd *pd, 915 struct ib_udata *udata); 916 int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev, 917 const struct ib_gid_attr *attr); 918 919 void mlx4_sched_ib_sl2vl_update_work(struct mlx4_ib_dev *ibdev, 920 int port); 921 922 void mlx4_ib_sl2vl_update(struct mlx4_ib_dev *mdev, int port); 923 924 struct ib_wq *mlx4_ib_create_wq(struct ib_pd *pd, 925 struct ib_wq_init_attr *init_attr, 926 struct ib_udata *udata); 927 int mlx4_ib_destroy_wq(struct ib_wq *wq, struct ib_udata *udata); 928 int mlx4_ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr, 929 u32 wq_attr_mask, struct ib_udata *udata); 930 931 int mlx4_ib_create_rwq_ind_table(struct ib_rwq_ind_table *ib_rwq_ind_tbl, 932 struct ib_rwq_ind_table_init_attr *init_attr, 933 struct ib_udata *udata); 934 static inline int mlx4_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table * wq_ind_table)935 mlx4_ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *wq_ind_table) 936 { 937 return 0; 938 } 939 int mlx4_ib_umem_calc_optimal_mtt_size(struct ib_umem *umem, u64 start_va, 940 int *num_of_mtts); 941 942 int mlx4_ib_cm_init(void); 943 void mlx4_ib_cm_destroy(void); 944 945 int mlx4_ib_qp_event_init(void); 946 void mlx4_ib_qp_event_cleanup(void); 947 948 #endif /* MLX4_IB_H */ 949