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