1178784Skmacy/* 2178784Skmacy * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. 3178784Skmacy * Copyright (c) 2004 Infinicon Corporation. All rights reserved. 4178784Skmacy * Copyright (c) 2004 Intel Corporation. All rights reserved. 5178784Skmacy * Copyright (c) 2004 Topspin Corporation. All rights reserved. 6178784Skmacy * Copyright (c) 2004 Voltaire Corporation. All rights reserved. 7178784Skmacy * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 8178784Skmacy * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. 9178784Skmacy * 10178784Skmacy * This software is available to you under a choice of one of two 11178784Skmacy * licenses. You may choose to be licensed under the terms of the GNU 12178784Skmacy * General Public License (GPL) Version 2, available from the file 13178784Skmacy * COPYING in the main directory of this source tree, or the 14178784Skmacy * OpenIB.org BSD license below: 15178784Skmacy * 16178784Skmacy * Redistribution and use in source and binary forms, with or 17178784Skmacy * without modification, are permitted provided that the following 18178784Skmacy * conditions are met: 19178784Skmacy * 20178784Skmacy * - Redistributions of source code must retain the above 21178784Skmacy * copyright notice, this list of conditions and the following 22178784Skmacy * disclaimer. 23178784Skmacy * 24178784Skmacy * - Redistributions in binary form must reproduce the above 25178784Skmacy * copyright notice, this list of conditions and the following 26178784Skmacy * disclaimer in the documentation and/or other materials 27178784Skmacy * provided with the distribution. 28178784Skmacy * 29178784Skmacy * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 30178784Skmacy * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 31178784Skmacy * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 32178784Skmacy * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 33178784Skmacy * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 34178784Skmacy * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 35178784Skmacy * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 36178784Skmacy * SOFTWARE. 37178784Skmacy * 38178784Skmacy * $Id: ib_verbs.h 1349 2004-12-16 21:09:43Z roland $ 39178784Skmacy * 40178784Skmacy * $FreeBSD$ 41178784Skmacy */ 42178784Skmacy 43178784Skmacy 44178784Skmacy#if !defined(IB_VERBS_H) 45178784Skmacy#define IB_VERBS_H 46178784Skmacy 47178784Skmacy#include <contrib/rdma/types.h> 48178784Skmacy#include <sys/lock.h> 49178784Skmacy#include <sys/mutex.h> 50178784Skmacy 51178784Skmacystruct rdma_scatterlist { 52178784Skmacy void *page; 53178784Skmacy unsigned int length; 54178784Skmacy unsigned int offset; 55178784Skmacy}; 56178784Skmacystruct vm_object; 57178784Skmacy 58178784Skmacyunion ib_gid { 59178784Skmacy u8 raw[16]; 60178784Skmacy struct { 61178784Skmacy __be64 subnet_prefix; 62178784Skmacy __be64 interface_id; 63178784Skmacy } global; 64178784Skmacy}; 65178784Skmacy 66178784Skmacyenum rdma_node_type { 67178784Skmacy /* IB values map to NodeInfo:NodeType. */ 68178784Skmacy RDMA_NODE_IB_CA = 1, 69178784Skmacy RDMA_NODE_IB_SWITCH, 70178784Skmacy RDMA_NODE_IB_ROUTER, 71178784Skmacy RDMA_NODE_RNIC 72178784Skmacy}; 73178784Skmacy 74178784Skmacyenum rdma_transport_type { 75178784Skmacy RDMA_TRANSPORT_IB, 76178784Skmacy RDMA_TRANSPORT_IWARP 77178784Skmacy}; 78178784Skmacy 79178784Skmacyenum rdma_transport_type 80178784Skmacyrdma_node_get_transport(enum rdma_node_type node_type); 81178784Skmacy 82178784Skmacyenum ib_device_cap_flags { 83178784Skmacy IB_DEVICE_RESIZE_MAX_WR = 1, 84178784Skmacy IB_DEVICE_BAD_PKEY_CNTR = (1<<1), 85178784Skmacy IB_DEVICE_BAD_QKEY_CNTR = (1<<2), 86178784Skmacy IB_DEVICE_RAW_MULTI = (1<<3), 87178784Skmacy IB_DEVICE_AUTO_PATH_MIG = (1<<4), 88178784Skmacy IB_DEVICE_CHANGE_PHY_PORT = (1<<5), 89178784Skmacy IB_DEVICE_UD_AV_PORT_ENFORCE = (1<<6), 90178784Skmacy IB_DEVICE_CURR_QP_STATE_MOD = (1<<7), 91178784Skmacy IB_DEVICE_SHUTDOWN_PORT = (1<<8), 92178784Skmacy IB_DEVICE_INIT_TYPE = (1<<9), 93178784Skmacy IB_DEVICE_PORT_ACTIVE_EVENT = (1<<10), 94178784Skmacy IB_DEVICE_SYS_IMAGE_GUID = (1<<11), 95178784Skmacy IB_DEVICE_RC_RNR_NAK_GEN = (1<<12), 96178784Skmacy IB_DEVICE_SRQ_RESIZE = (1<<13), 97178784Skmacy IB_DEVICE_N_NOTIFY_CQ = (1<<14), 98178784Skmacy IB_DEVICE_ZERO_STAG = (1<<15), 99178784Skmacy IB_DEVICE_SEND_W_INV = (1<<16), 100178784Skmacy IB_DEVICE_MEM_WINDOW = (1<<17) 101178784Skmacy}; 102178784Skmacy 103178784Skmacyenum ib_atomic_cap { 104178784Skmacy IB_ATOMIC_NONE, 105178784Skmacy IB_ATOMIC_HCA, 106178784Skmacy IB_ATOMIC_GLOB 107178784Skmacy}; 108178784Skmacy 109178784Skmacystruct ib_device_attr { 110178784Skmacy u64 fw_ver; 111178784Skmacy __be64 sys_image_guid; 112178784Skmacy u64 max_mr_size; 113178784Skmacy u64 page_size_cap; 114178784Skmacy u32 vendor_id; 115178784Skmacy u32 vendor_part_id; 116178784Skmacy u32 hw_ver; 117178784Skmacy int max_qp; 118178784Skmacy int max_qp_wr; 119178784Skmacy int device_cap_flags; 120178784Skmacy int max_sge; 121178784Skmacy int max_sge_rd; 122178784Skmacy int max_cq; 123178784Skmacy int max_cqe; 124178784Skmacy int max_mr; 125178784Skmacy int max_pd; 126178784Skmacy int max_qp_rd_atom; 127178784Skmacy int max_ee_rd_atom; 128178784Skmacy int max_res_rd_atom; 129178784Skmacy int max_qp_init_rd_atom; 130178784Skmacy int max_ee_init_rd_atom; 131178784Skmacy enum ib_atomic_cap atomic_cap; 132178784Skmacy int max_ee; 133178784Skmacy int max_rdd; 134178784Skmacy int max_mw; 135178784Skmacy int max_raw_ipv6_qp; 136178784Skmacy int max_raw_ethy_qp; 137178784Skmacy int max_mcast_grp; 138178784Skmacy int max_mcast_qp_attach; 139178784Skmacy int max_total_mcast_qp_attach; 140178784Skmacy int max_ah; 141178784Skmacy int max_fmr; 142178784Skmacy int max_map_per_fmr; 143178784Skmacy int max_srq; 144178784Skmacy int max_srq_wr; 145178784Skmacy int max_srq_sge; 146178784Skmacy u16 max_pkeys; 147178784Skmacy u8 local_ca_ack_delay; 148178784Skmacy}; 149178784Skmacy 150178784Skmacyenum ib_mtu { 151178784Skmacy IB_MTU_256 = 1, 152178784Skmacy IB_MTU_512 = 2, 153178784Skmacy IB_MTU_1024 = 3, 154178784Skmacy IB_MTU_2048 = 4, 155178784Skmacy IB_MTU_4096 = 5 156178784Skmacy}; 157178784Skmacy 158178784Skmacystatic inline int ib_mtu_enum_to_int(enum ib_mtu mtu) 159178784Skmacy{ 160178784Skmacy switch (mtu) { 161178784Skmacy case IB_MTU_256: return 256; 162178784Skmacy case IB_MTU_512: return 512; 163178784Skmacy case IB_MTU_1024: return 1024; 164178784Skmacy case IB_MTU_2048: return 2048; 165178784Skmacy case IB_MTU_4096: return 4096; 166178784Skmacy default: return -1; 167178784Skmacy } 168178784Skmacy} 169178784Skmacy 170178784Skmacyenum ib_port_state { 171178784Skmacy IB_PORT_NOP = 0, 172178784Skmacy IB_PORT_DOWN = 1, 173178784Skmacy IB_PORT_INIT = 2, 174178784Skmacy IB_PORT_ARMED = 3, 175178784Skmacy IB_PORT_ACTIVE = 4, 176178784Skmacy IB_PORT_ACTIVE_DEFER = 5 177178784Skmacy}; 178178784Skmacy 179178784Skmacyenum ib_port_cap_flags { 180178784Skmacy IB_PORT_SM = 1 << 1, 181178784Skmacy IB_PORT_NOTICE_SUP = 1 << 2, 182178784Skmacy IB_PORT_TRAP_SUP = 1 << 3, 183178784Skmacy IB_PORT_OPT_IPD_SUP = 1 << 4, 184178784Skmacy IB_PORT_AUTO_MIGR_SUP = 1 << 5, 185178784Skmacy IB_PORT_SL_MAP_SUP = 1 << 6, 186178784Skmacy IB_PORT_MKEY_NVRAM = 1 << 7, 187178784Skmacy IB_PORT_PKEY_NVRAM = 1 << 8, 188178784Skmacy IB_PORT_LED_INFO_SUP = 1 << 9, 189178784Skmacy IB_PORT_SM_DISABLED = 1 << 10, 190178784Skmacy IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11, 191178784Skmacy IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12, 192178784Skmacy IB_PORT_CM_SUP = 1 << 16, 193178784Skmacy IB_PORT_SNMP_TUNNEL_SUP = 1 << 17, 194178784Skmacy IB_PORT_REINIT_SUP = 1 << 18, 195178784Skmacy IB_PORT_DEVICE_MGMT_SUP = 1 << 19, 196178784Skmacy IB_PORT_VENDOR_CLASS_SUP = 1 << 20, 197178784Skmacy IB_PORT_DR_NOTICE_SUP = 1 << 21, 198178784Skmacy IB_PORT_CAP_MASK_NOTICE_SUP = 1 << 22, 199178784Skmacy IB_PORT_BOOT_MGMT_SUP = 1 << 23, 200178784Skmacy IB_PORT_LINK_LATENCY_SUP = 1 << 24, 201178784Skmacy IB_PORT_CLIENT_REG_SUP = 1 << 25 202178784Skmacy}; 203178784Skmacy 204178784Skmacyenum ib_port_width { 205178784Skmacy IB_WIDTH_1X = 1, 206178784Skmacy IB_WIDTH_4X = 2, 207178784Skmacy IB_WIDTH_8X = 4, 208178784Skmacy IB_WIDTH_12X = 8 209178784Skmacy}; 210178784Skmacy 211178784Skmacystatic inline int ib_width_enum_to_int(enum ib_port_width width) 212178784Skmacy{ 213178784Skmacy switch (width) { 214178784Skmacy case IB_WIDTH_1X: return 1; 215178784Skmacy case IB_WIDTH_4X: return 4; 216178784Skmacy case IB_WIDTH_8X: return 8; 217178784Skmacy case IB_WIDTH_12X: return 12; 218178784Skmacy default: return -1; 219178784Skmacy } 220178784Skmacy} 221178784Skmacy 222178784Skmacystruct ib_port_attr { 223178784Skmacy enum ib_port_state state; 224178784Skmacy enum ib_mtu max_mtu; 225178784Skmacy enum ib_mtu active_mtu; 226178784Skmacy int gid_tbl_len; 227178784Skmacy u32 port_cap_flags; 228178784Skmacy u32 max_msg_sz; 229178784Skmacy u32 bad_pkey_cntr; 230178784Skmacy u32 qkey_viol_cntr; 231178784Skmacy u16 pkey_tbl_len; 232178784Skmacy u16 lid; 233178784Skmacy u16 sm_lid; 234178784Skmacy u8 lmc; 235178784Skmacy u8 max_vl_num; 236178784Skmacy u8 sm_sl; 237178784Skmacy u8 subnet_timeout; 238178784Skmacy u8 init_type_reply; 239178784Skmacy u8 active_width; 240178784Skmacy u8 active_speed; 241178784Skmacy u8 phys_state; 242178784Skmacy}; 243178784Skmacy 244178784Skmacyenum ib_device_modify_flags { 245178784Skmacy IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0, 246178784Skmacy IB_DEVICE_MODIFY_NODE_DESC = 1 << 1 247178784Skmacy}; 248178784Skmacy 249178784Skmacystruct ib_device_modify { 250178784Skmacy u64 sys_image_guid; 251178784Skmacy char node_desc[64]; 252178784Skmacy}; 253178784Skmacy 254178784Skmacyenum ib_port_modify_flags { 255178784Skmacy IB_PORT_SHUTDOWN = 1, 256178784Skmacy IB_PORT_INIT_TYPE = (1<<2), 257178784Skmacy IB_PORT_RESET_QKEY_CNTR = (1<<3) 258178784Skmacy}; 259178784Skmacy 260178784Skmacystruct ib_port_modify { 261178784Skmacy u32 set_port_cap_mask; 262178784Skmacy u32 clr_port_cap_mask; 263178784Skmacy u8 init_type; 264178784Skmacy}; 265178784Skmacy 266178784Skmacyenum ib_event_type { 267178784Skmacy IB_EVENT_CQ_ERR, 268178784Skmacy IB_EVENT_QP_FATAL, 269178784Skmacy IB_EVENT_QP_REQ_ERR, 270178784Skmacy IB_EVENT_QP_ACCESS_ERR, 271178784Skmacy IB_EVENT_COMM_EST, 272178784Skmacy IB_EVENT_SQ_DRAINED, 273178784Skmacy IB_EVENT_PATH_MIG, 274178784Skmacy IB_EVENT_PATH_MIG_ERR, 275178784Skmacy IB_EVENT_DEVICE_FATAL, 276178784Skmacy IB_EVENT_PORT_ACTIVE, 277178784Skmacy IB_EVENT_PORT_ERR, 278178784Skmacy IB_EVENT_LID_CHANGE, 279178784Skmacy IB_EVENT_PKEY_CHANGE, 280178784Skmacy IB_EVENT_SM_CHANGE, 281178784Skmacy IB_EVENT_SRQ_ERR, 282178784Skmacy IB_EVENT_SRQ_LIMIT_REACHED, 283178784Skmacy IB_EVENT_QP_LAST_WQE_REACHED, 284178784Skmacy IB_EVENT_CLIENT_REREGISTER 285178784Skmacy}; 286178784Skmacy 287178784Skmacyenum dma_data_direction { 288178784Skmacy DMA_BIDIRECTIONAL = 0, 289178784Skmacy DMA_TO_DEVICE = 1, 290178784Skmacy DMA_FROM_DEVICE = 2, 291178784Skmacy DMA_NONE = 3, 292178784Skmacy}; 293178784Skmacy 294178784Skmacystruct ib_event { 295178784Skmacy struct ib_device *device; 296178784Skmacy union { 297178784Skmacy struct ib_cq *cq; 298178784Skmacy struct ib_qp *qp; 299178784Skmacy struct ib_srq *srq; 300178784Skmacy u8 port_num; 301178784Skmacy } element; 302178784Skmacy enum ib_event_type event; 303178784Skmacy}; 304178784Skmacy 305178784Skmacystruct ib_event_handler { 306178784Skmacy struct ib_device *device; 307178784Skmacy void (*handler)(struct ib_event_handler *, struct ib_event *); 308178784Skmacy TAILQ_ENTRY(ib_event_handler) list; 309178784Skmacy}; 310178784Skmacy 311178784Skmacy#define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \ 312178784Skmacy do { \ 313178784Skmacy (_ptr)->device = _device; \ 314178784Skmacy (_ptr)->handler = _handler; \ 315178784Skmacy } while (0) 316178784Skmacy 317178784Skmacystruct ib_global_route { 318178784Skmacy union ib_gid dgid; 319178784Skmacy u32 flow_label; 320178784Skmacy u8 sgid_index; 321178784Skmacy u8 hop_limit; 322178784Skmacy u8 traffic_class; 323178784Skmacy}; 324178784Skmacy 325178784Skmacystruct ib_grh { 326178784Skmacy __be32 version_tclass_flow; 327178784Skmacy __be16 paylen; 328178784Skmacy u8 next_hdr; 329178784Skmacy u8 hop_limit; 330178784Skmacy union ib_gid sgid; 331178784Skmacy union ib_gid dgid; 332178784Skmacy}; 333178784Skmacy 334178784Skmacyenum { 335178784Skmacy IB_MULTICAST_QPN = 0xffffff 336178784Skmacy}; 337178784Skmacy 338178784Skmacy#define IB_LID_PERMISSIVE __constant_htons(0xFFFF) 339178784Skmacy 340178784Skmacyenum ib_ah_flags { 341178784Skmacy IB_AH_GRH = 1 342178784Skmacy}; 343178784Skmacy 344178784Skmacyenum ib_rate { 345178784Skmacy IB_RATE_PORT_CURRENT = 0, 346178784Skmacy IB_RATE_2_5_GBPS = 2, 347178784Skmacy IB_RATE_5_GBPS = 5, 348178784Skmacy IB_RATE_10_GBPS = 3, 349178784Skmacy IB_RATE_20_GBPS = 6, 350178784Skmacy IB_RATE_30_GBPS = 4, 351178784Skmacy IB_RATE_40_GBPS = 7, 352178784Skmacy IB_RATE_60_GBPS = 8, 353178784Skmacy IB_RATE_80_GBPS = 9, 354178784Skmacy IB_RATE_120_GBPS = 10 355178784Skmacy}; 356178784Skmacy 357178784Skmacy/** 358178784Skmacy * ib_rate_to_mult - Convert the IB rate enum to a multiple of the 359178784Skmacy * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be 360178784Skmacy * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec. 361178784Skmacy * @rate: rate to convert. 362178784Skmacy */ 363178784Skmacyint ib_rate_to_mult(enum ib_rate rate); 364178784Skmacy 365178784Skmacy/** 366178784Skmacy * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate 367178784Skmacy * enum. 368178784Skmacy * @mult: multiple to convert. 369178784Skmacy */ 370178784Skmacyenum ib_rate mult_to_ib_rate(int mult); 371178784Skmacy 372178784Skmacystruct ib_ah_attr { 373178784Skmacy struct ib_global_route grh; 374178784Skmacy u16 dlid; 375178784Skmacy u8 sl; 376178784Skmacy u8 src_path_bits; 377178784Skmacy u8 static_rate; 378178784Skmacy u8 ah_flags; 379178784Skmacy u8 port_num; 380178784Skmacy}; 381178784Skmacy 382178784Skmacyenum ib_wc_status { 383178784Skmacy IB_WC_SUCCESS, 384178784Skmacy IB_WC_LOC_LEN_ERR, 385178784Skmacy IB_WC_LOC_QP_OP_ERR, 386178784Skmacy IB_WC_LOC_EEC_OP_ERR, 387178784Skmacy IB_WC_LOC_PROT_ERR, 388178784Skmacy IB_WC_WR_FLUSH_ERR, 389178784Skmacy IB_WC_MW_BIND_ERR, 390178784Skmacy IB_WC_BAD_RESP_ERR, 391178784Skmacy IB_WC_LOC_ACCESS_ERR, 392178784Skmacy IB_WC_REM_INV_REQ_ERR, 393178784Skmacy IB_WC_REM_ACCESS_ERR, 394178784Skmacy IB_WC_REM_OP_ERR, 395178784Skmacy IB_WC_RETRY_EXC_ERR, 396178784Skmacy IB_WC_RNR_RETRY_EXC_ERR, 397178784Skmacy IB_WC_LOC_RDD_VIOL_ERR, 398178784Skmacy IB_WC_REM_INV_RD_REQ_ERR, 399178784Skmacy IB_WC_REM_ABORT_ERR, 400178784Skmacy IB_WC_INV_EECN_ERR, 401178784Skmacy IB_WC_INV_EEC_STATE_ERR, 402178784Skmacy IB_WC_FATAL_ERR, 403178784Skmacy IB_WC_RESP_TIMEOUT_ERR, 404178784Skmacy IB_WC_GENERAL_ERR 405178784Skmacy}; 406178784Skmacy 407178784Skmacyenum ib_wc_opcode { 408178784Skmacy IB_WC_SEND, 409178784Skmacy IB_WC_RDMA_WRITE, 410178784Skmacy IB_WC_RDMA_READ, 411178784Skmacy IB_WC_COMP_SWAP, 412178784Skmacy IB_WC_FETCH_ADD, 413178784Skmacy IB_WC_BIND_MW, 414178784Skmacy/* 415178784Skmacy * Set value of IB_WC_RECV so consumers can test if a completion is a 416178784Skmacy * receive by testing (opcode & IB_WC_RECV). 417178784Skmacy */ 418178784Skmacy IB_WC_RECV = 1 << 7, 419178784Skmacy IB_WC_RECV_RDMA_WITH_IMM 420178784Skmacy}; 421178784Skmacy 422178784Skmacyenum ib_wc_flags { 423178784Skmacy IB_WC_GRH = 1, 424178784Skmacy IB_WC_WITH_IMM = (1<<1) 425178784Skmacy}; 426178784Skmacy 427178784Skmacystruct ib_wc { 428178784Skmacy u64 wr_id; 429178784Skmacy enum ib_wc_status status; 430178784Skmacy enum ib_wc_opcode opcode; 431178784Skmacy u32 vendor_err; 432178784Skmacy u32 byte_len; 433178784Skmacy struct ib_qp *qp; 434178784Skmacy __be32 imm_data; 435178784Skmacy u32 src_qp; 436178784Skmacy int wc_flags; 437178784Skmacy u16 pkey_index; 438178784Skmacy u16 slid; 439178784Skmacy u8 sl; 440178784Skmacy u8 dlid_path_bits; 441178784Skmacy u8 port_num; /* valid only for DR SMPs on switches */ 442178784Skmacy}; 443178784Skmacy 444178784Skmacyenum ib_cq_notify_flags { 445178784Skmacy IB_CQ_SOLICITED = 1 << 0, 446178784Skmacy IB_CQ_NEXT_COMP = 1 << 1, 447178784Skmacy IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP, 448178784Skmacy IB_CQ_REPORT_MISSED_EVENTS = 1 << 2, 449178784Skmacy}; 450178784Skmacy 451178784Skmacyenum ib_srq_attr_mask { 452178784Skmacy IB_SRQ_MAX_WR = 1 << 0, 453178784Skmacy IB_SRQ_LIMIT = 1 << 1, 454178784Skmacy}; 455178784Skmacy 456178784Skmacystruct ib_srq_attr { 457178784Skmacy u32 max_wr; 458178784Skmacy u32 max_sge; 459178784Skmacy u32 srq_limit; 460178784Skmacy}; 461178784Skmacy 462178784Skmacystruct ib_srq_init_attr { 463178784Skmacy void (*event_handler)(struct ib_event *, void *); 464178784Skmacy void *srq_context; 465178784Skmacy struct ib_srq_attr attr; 466178784Skmacy}; 467178784Skmacy 468178784Skmacystruct ib_qp_cap { 469178784Skmacy u32 max_send_wr; 470178784Skmacy u32 max_recv_wr; 471178784Skmacy u32 max_send_sge; 472178784Skmacy u32 max_recv_sge; 473178784Skmacy u32 max_inline_data; 474178784Skmacy}; 475178784Skmacy 476178784Skmacyenum ib_sig_type { 477178784Skmacy IB_SIGNAL_ALL_WR, 478178784Skmacy IB_SIGNAL_REQ_WR 479178784Skmacy}; 480178784Skmacy 481178784Skmacyenum ib_qp_type { 482178784Skmacy /* 483178784Skmacy * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries 484178784Skmacy * here (and in that order) since the MAD layer uses them as 485178784Skmacy * indices into a 2-entry table. 486178784Skmacy */ 487178784Skmacy IB_QPT_SMI, 488178784Skmacy IB_QPT_GSI, 489178784Skmacy 490178784Skmacy IB_QPT_RC, 491178784Skmacy IB_QPT_UC, 492178784Skmacy IB_QPT_UD, 493178784Skmacy IB_QPT_RAW_IPV6, 494178784Skmacy IB_QPT_RAW_ETY 495178784Skmacy}; 496178784Skmacy 497178784Skmacystruct ib_qp_init_attr { 498178784Skmacy void (*event_handler)(struct ib_event *, void *); 499178784Skmacy void *qp_context; 500178784Skmacy struct ib_cq *send_cq; 501178784Skmacy struct ib_cq *recv_cq; 502178784Skmacy struct ib_srq *srq; 503178784Skmacy struct ib_qp_cap cap; 504178784Skmacy enum ib_sig_type sq_sig_type; 505178784Skmacy enum ib_qp_type qp_type; 506178784Skmacy u8 port_num; /* special QP types only */ 507178784Skmacy}; 508178784Skmacy 509178784Skmacyenum ib_rnr_timeout { 510178784Skmacy IB_RNR_TIMER_655_36 = 0, 511178784Skmacy IB_RNR_TIMER_000_01 = 1, 512178784Skmacy IB_RNR_TIMER_000_02 = 2, 513178784Skmacy IB_RNR_TIMER_000_03 = 3, 514178784Skmacy IB_RNR_TIMER_000_04 = 4, 515178784Skmacy IB_RNR_TIMER_000_06 = 5, 516178784Skmacy IB_RNR_TIMER_000_08 = 6, 517178784Skmacy IB_RNR_TIMER_000_12 = 7, 518178784Skmacy IB_RNR_TIMER_000_16 = 8, 519178784Skmacy IB_RNR_TIMER_000_24 = 9, 520178784Skmacy IB_RNR_TIMER_000_32 = 10, 521178784Skmacy IB_RNR_TIMER_000_48 = 11, 522178784Skmacy IB_RNR_TIMER_000_64 = 12, 523178784Skmacy IB_RNR_TIMER_000_96 = 13, 524178784Skmacy IB_RNR_TIMER_001_28 = 14, 525178784Skmacy IB_RNR_TIMER_001_92 = 15, 526178784Skmacy IB_RNR_TIMER_002_56 = 16, 527178784Skmacy IB_RNR_TIMER_003_84 = 17, 528178784Skmacy IB_RNR_TIMER_005_12 = 18, 529178784Skmacy IB_RNR_TIMER_007_68 = 19, 530178784Skmacy IB_RNR_TIMER_010_24 = 20, 531178784Skmacy IB_RNR_TIMER_015_36 = 21, 532178784Skmacy IB_RNR_TIMER_020_48 = 22, 533178784Skmacy IB_RNR_TIMER_030_72 = 23, 534178784Skmacy IB_RNR_TIMER_040_96 = 24, 535178784Skmacy IB_RNR_TIMER_061_44 = 25, 536178784Skmacy IB_RNR_TIMER_081_92 = 26, 537178784Skmacy IB_RNR_TIMER_122_88 = 27, 538178784Skmacy IB_RNR_TIMER_163_84 = 28, 539178784Skmacy IB_RNR_TIMER_245_76 = 29, 540178784Skmacy IB_RNR_TIMER_327_68 = 30, 541178784Skmacy IB_RNR_TIMER_491_52 = 31 542178784Skmacy}; 543178784Skmacy 544178784Skmacyenum ib_qp_attr_mask { 545178784Skmacy IB_QP_STATE = 1, 546178784Skmacy IB_QP_CUR_STATE = (1<<1), 547178784Skmacy IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2), 548178784Skmacy IB_QP_ACCESS_FLAGS = (1<<3), 549178784Skmacy IB_QP_PKEY_INDEX = (1<<4), 550178784Skmacy IB_QP_PORT = (1<<5), 551178784Skmacy IB_QP_QKEY = (1<<6), 552178784Skmacy IB_QP_AV = (1<<7), 553178784Skmacy IB_QP_PATH_MTU = (1<<8), 554178784Skmacy IB_QP_TIMEOUT = (1<<9), 555178784Skmacy IB_QP_RETRY_CNT = (1<<10), 556178784Skmacy IB_QP_RNR_RETRY = (1<<11), 557178784Skmacy IB_QP_RQ_PSN = (1<<12), 558178784Skmacy IB_QP_MAX_QP_RD_ATOMIC = (1<<13), 559178784Skmacy IB_QP_ALT_PATH = (1<<14), 560178784Skmacy IB_QP_MIN_RNR_TIMER = (1<<15), 561178784Skmacy IB_QP_SQ_PSN = (1<<16), 562178784Skmacy IB_QP_MAX_DEST_RD_ATOMIC = (1<<17), 563178784Skmacy IB_QP_PATH_MIG_STATE = (1<<18), 564178784Skmacy IB_QP_CAP = (1<<19), 565178784Skmacy IB_QP_DEST_QPN = (1<<20) 566178784Skmacy}; 567178784Skmacy 568178784Skmacyenum ib_qp_state { 569178784Skmacy IB_QPS_RESET, 570178784Skmacy IB_QPS_INIT, 571178784Skmacy IB_QPS_RTR, 572178784Skmacy IB_QPS_RTS, 573178784Skmacy IB_QPS_SQD, 574178784Skmacy IB_QPS_SQE, 575178784Skmacy IB_QPS_ERR 576178784Skmacy}; 577178784Skmacy 578178784Skmacyenum ib_mig_state { 579178784Skmacy IB_MIG_MIGRATED, 580178784Skmacy IB_MIG_REARM, 581178784Skmacy IB_MIG_ARMED 582178784Skmacy}; 583178784Skmacy 584178784Skmacystruct ib_qp_attr { 585178784Skmacy enum ib_qp_state qp_state; 586178784Skmacy enum ib_qp_state cur_qp_state; 587178784Skmacy enum ib_mtu path_mtu; 588178784Skmacy enum ib_mig_state path_mig_state; 589178784Skmacy u32 qkey; 590178784Skmacy u32 rq_psn; 591178784Skmacy u32 sq_psn; 592178784Skmacy u32 dest_qp_num; 593178784Skmacy int qp_access_flags; 594178784Skmacy struct ib_qp_cap cap; 595178784Skmacy struct ib_ah_attr ah_attr; 596178784Skmacy struct ib_ah_attr alt_ah_attr; 597178784Skmacy u16 pkey_index; 598178784Skmacy u16 alt_pkey_index; 599178784Skmacy u8 en_sqd_async_notify; 600178784Skmacy u8 sq_draining; 601178784Skmacy u8 max_rd_atomic; 602178784Skmacy u8 max_dest_rd_atomic; 603178784Skmacy u8 min_rnr_timer; 604178784Skmacy u8 port_num; 605178784Skmacy u8 timeout; 606178784Skmacy u8 retry_cnt; 607178784Skmacy u8 rnr_retry; 608178784Skmacy u8 alt_port_num; 609178784Skmacy u8 alt_timeout; 610178784Skmacy}; 611178784Skmacy 612178784Skmacyenum ib_wr_opcode { 613178784Skmacy IB_WR_RDMA_WRITE, 614178784Skmacy IB_WR_RDMA_WRITE_WITH_IMM, 615178784Skmacy IB_WR_SEND, 616178784Skmacy IB_WR_SEND_WITH_IMM, 617178784Skmacy IB_WR_RDMA_READ, 618178784Skmacy IB_WR_ATOMIC_CMP_AND_SWP, 619178784Skmacy IB_WR_ATOMIC_FETCH_AND_ADD 620178784Skmacy}; 621178784Skmacy 622178784Skmacyenum ib_send_flags { 623178784Skmacy IB_SEND_FENCE = 1, 624178784Skmacy IB_SEND_SIGNALED = (1<<1), 625178784Skmacy IB_SEND_SOLICITED = (1<<2), 626178784Skmacy IB_SEND_INLINE = (1<<3) 627178784Skmacy}; 628178784Skmacy 629178784Skmacystruct ib_sge { 630178784Skmacy u64 addr; 631178784Skmacy u32 length; 632178784Skmacy u32 lkey; 633178784Skmacy}; 634178784Skmacy 635178784Skmacystruct ib_send_wr { 636178784Skmacy struct ib_send_wr *next; 637178784Skmacy u64 wr_id; 638178784Skmacy struct ib_sge *sg_list; 639178784Skmacy int num_sge; 640178784Skmacy enum ib_wr_opcode opcode; 641178784Skmacy int send_flags; 642178784Skmacy __be32 imm_data; 643178784Skmacy union { 644178784Skmacy struct { 645178784Skmacy u64 remote_addr; 646178784Skmacy u32 rkey; 647178784Skmacy } rdma; 648178784Skmacy struct { 649178784Skmacy u64 remote_addr; 650178784Skmacy u64 compare_add; 651178784Skmacy u64 swap; 652178784Skmacy u32 rkey; 653178784Skmacy } atomic; 654178784Skmacy struct { 655178784Skmacy struct ib_ah *ah; 656178784Skmacy u32 remote_qpn; 657178784Skmacy u32 remote_qkey; 658178784Skmacy u16 pkey_index; /* valid for GSI only */ 659178784Skmacy u8 port_num; /* valid for DR SMPs on switch only */ 660178784Skmacy } ud; 661178784Skmacy } wr; 662178784Skmacy}; 663178784Skmacy 664178784Skmacystruct ib_recv_wr { 665178784Skmacy struct ib_recv_wr *next; 666178784Skmacy u64 wr_id; 667178784Skmacy struct ib_sge *sg_list; 668178784Skmacy int num_sge; 669178784Skmacy}; 670178784Skmacy 671178784Skmacyenum ib_access_flags { 672178784Skmacy IB_ACCESS_LOCAL_WRITE = 1, 673178784Skmacy IB_ACCESS_REMOTE_WRITE = (1<<1), 674178784Skmacy IB_ACCESS_REMOTE_READ = (1<<2), 675178784Skmacy IB_ACCESS_REMOTE_ATOMIC = (1<<3), 676178784Skmacy IB_ACCESS_MW_BIND = (1<<4) 677178784Skmacy}; 678178784Skmacy 679178784Skmacystruct ib_phys_buf { 680178784Skmacy u64 addr; 681178784Skmacy u64 size; 682178784Skmacy}; 683178784Skmacy 684178784Skmacystruct ib_mr_attr { 685178784Skmacy struct ib_pd *pd; 686178784Skmacy u64 device_virt_addr; 687178784Skmacy u64 size; 688178784Skmacy int mr_access_flags; 689178784Skmacy u32 lkey; 690178784Skmacy u32 rkey; 691178784Skmacy}; 692178784Skmacy 693178784Skmacyenum ib_mr_rereg_flags { 694178784Skmacy IB_MR_REREG_TRANS = 1, 695178784Skmacy IB_MR_REREG_PD = (1<<1), 696178784Skmacy IB_MR_REREG_ACCESS = (1<<2) 697178784Skmacy}; 698178784Skmacy 699178784Skmacystruct ib_mw_bind { 700178784Skmacy struct ib_mr *mr; 701178784Skmacy u64 wr_id; 702178784Skmacy u64 addr; 703178784Skmacy u32 length; 704178784Skmacy int send_flags; 705178784Skmacy int mw_access_flags; 706178784Skmacy}; 707178784Skmacy 708178784Skmacystruct ib_fmr_attr { 709178784Skmacy int max_pages; 710178784Skmacy int max_maps; 711178784Skmacy u8 page_shift; 712178784Skmacy}; 713178784Skmacy 714178784Skmacy/* 715178784Skmacy * XXX can this really be on 7 different lists at once? 716178784Skmacy * 717178784Skmacy */ 718178784Skmacystruct ib_ucontext { 719178784Skmacy struct ib_device *device; 720178784Skmacy TAILQ_ENTRY(ib_ucontext) pd_list; 721178784Skmacy TAILQ_ENTRY(ib_ucontext) mr_list; 722178784Skmacy TAILQ_ENTRY(ib_ucontext) mw_list; 723178784Skmacy TAILQ_ENTRY(ib_ucontext) cq_list; 724178784Skmacy TAILQ_ENTRY(ib_ucontext) qp_list; 725178784Skmacy TAILQ_ENTRY(ib_ucontext) srq_list; 726178784Skmacy TAILQ_ENTRY(ib_ucontext) ah_list; 727178784Skmacy int closing; 728178784Skmacy}; 729178784Skmacy 730178784Skmacystruct ib_uobject { 731178784Skmacy u64 user_handle; /* handle given to us by userspace */ 732178784Skmacy struct ib_ucontext *context; /* associated user context */ 733178784Skmacy void *object; /* containing object */ 734178784Skmacy TAILQ_ENTRY(ib_uobject) entry; /* link to context's list */ 735178784Skmacy u32 id; /* index into kernel idr */ 736178784Skmacy volatile uint32_t ref; 737178784Skmacy struct mtx lock; /* protects .live */ 738178784Skmacy int live; 739178784Skmacy}; 740178784Skmacy 741178784Skmacystruct ib_udata { 742178784Skmacy void *inbuf; 743178784Skmacy void *outbuf; 744178784Skmacy size_t inlen; 745178784Skmacy size_t outlen; 746178784Skmacy}; 747178784Skmacy 748178784Skmacy#define IB_UMEM_MAX_PAGE_CHUNK \ 749178784Skmacy ((PAGE_SIZE - offsetof(struct ib_umem_chunk, page_list)) / \ 750178784Skmacy ((void *) &((struct ib_umem_chunk *) 0)->page_list[1] - \ 751178784Skmacy (void *) &((struct ib_umem_chunk *) 0)->page_list[0])) 752178784Skmacy 753178784Skmacystruct ib_pd { 754178784Skmacy struct ib_device *device; 755178784Skmacy struct ib_uobject *uobject; 756178784Skmacy volatile int usecnt; /* count all resources */ 757178784Skmacy}; 758178784Skmacy 759178784Skmacystruct ib_ah { 760178784Skmacy struct ib_device *device; 761178784Skmacy struct ib_pd *pd; 762178784Skmacy struct ib_uobject *uobject; 763178784Skmacy}; 764178784Skmacy 765178784Skmacytypedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context); 766178784Skmacy 767178784Skmacystruct ib_cq { 768178784Skmacy struct ib_device *device; 769178784Skmacy struct ib_uobject *uobject; 770178784Skmacy ib_comp_handler comp_handler; 771178784Skmacy void (*event_handler)(struct ib_event *, void *); 772178784Skmacy void * cq_context; 773178784Skmacy int cqe; 774178784Skmacy volatile int usecnt; /* count number of work queues */ 775178784Skmacy}; 776178784Skmacy 777178784Skmacystruct ib_srq { 778178784Skmacy struct ib_device *device; 779178784Skmacy struct ib_pd *pd; 780178784Skmacy struct ib_uobject *uobject; 781178784Skmacy void (*event_handler)(struct ib_event *, void *); 782178784Skmacy void *srq_context; 783178784Skmacy volatile int usecnt; 784178784Skmacy}; 785178784Skmacy 786178784Skmacystruct ib_qp { 787178784Skmacy struct ib_device *device; 788178784Skmacy struct ib_pd *pd; 789178784Skmacy struct ib_cq *send_cq; 790178784Skmacy struct ib_cq *recv_cq; 791178784Skmacy struct ib_srq *srq; 792178784Skmacy struct ib_uobject *uobject; 793178784Skmacy void (*event_handler)(struct ib_event *, void *); 794178784Skmacy void *qp_context; 795178784Skmacy u32 qp_num; 796178784Skmacy enum ib_qp_type qp_type; 797178784Skmacy}; 798178784Skmacy 799178784Skmacystruct ib_mr { 800178784Skmacy struct ib_device *device; 801178784Skmacy struct ib_pd *pd; 802178784Skmacy struct ib_uobject *uobject; 803178784Skmacy u32 lkey; 804178784Skmacy u32 rkey; 805178784Skmacy volatile int usecnt; /* count number of MWs */ 806178784Skmacy}; 807178784Skmacy 808178784Skmacystruct ib_mw { 809178784Skmacy struct ib_device *device; 810178784Skmacy struct ib_pd *pd; 811178784Skmacy struct ib_uobject *uobject; 812178784Skmacy u32 rkey; 813178784Skmacy}; 814178784Skmacy 815178784Skmacy 816178784Skmacystruct ib_fmr { 817178784Skmacy struct ib_device *device; 818178784Skmacy struct ib_pd *pd; 819178784Skmacy TAILQ_ENTRY(ib_fmr) entry; 820178784Skmacy u32 lkey; 821178784Skmacy u32 rkey; 822178784Skmacy}; 823178784Skmacy 824178784SkmacyTAILQ_HEAD(ib_fmr_list_head, ib_fmr); 825178784Skmacy 826178784Skmacystruct ib_mad; 827178784Skmacystruct ib_grh; 828178784Skmacy 829178784Skmacyenum ib_process_mad_flags { 830178784Skmacy IB_MAD_IGNORE_MKEY = 1, 831178784Skmacy IB_MAD_IGNORE_BKEY = 2, 832178784Skmacy IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY 833178784Skmacy}; 834178784Skmacy 835178784Skmacyenum ib_mad_result { 836178784Skmacy IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */ 837178784Skmacy IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */ 838178784Skmacy IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */ 839178784Skmacy IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */ 840178784Skmacy}; 841178784Skmacy 842178784Skmacy#define IB_DEVICE_NAME_MAX 64 843178784Skmacy 844178784Skmacystruct ib_cache { 845178784Skmacy struct mtx lock; 846178784Skmacy struct ib_event_handler event_handler; 847178784Skmacy struct ib_pkey_cache **pkey_cache; 848178784Skmacy struct ib_gid_cache **gid_cache; 849178784Skmacy u8 *lmc_cache; 850178784Skmacy}; 851178784Skmacy 852178784Skmacystruct ib_dma_mapping_ops { 853178784Skmacy int (*mapping_error)(struct ib_device *dev, 854178784Skmacy u64 dma_addr); 855178784Skmacy u64 (*map_single)(struct ib_device *dev, 856178784Skmacy void *ptr, size_t size, 857178784Skmacy enum dma_data_direction direction); 858178784Skmacy void (*unmap_single)(struct ib_device *dev, 859178784Skmacy u64 addr, size_t size, 860178784Skmacy enum dma_data_direction direction); 861178784Skmacy u64 (*map_page)(struct ib_device *dev, 862178784Skmacy void *page, unsigned long offset, 863178784Skmacy size_t size, 864178784Skmacy enum dma_data_direction direction); 865178784Skmacy void (*unmap_page)(struct ib_device *dev, 866178784Skmacy u64 addr, size_t size, 867178784Skmacy enum dma_data_direction direction); 868178784Skmacy int (*map_sg)(struct ib_device *dev, 869178784Skmacy struct rdma_scatterlist *sg, int nents, 870178784Skmacy enum dma_data_direction direction); 871178784Skmacy void (*unmap_sg)(struct ib_device *dev, 872178784Skmacy struct rdma_scatterlist *sg, int nents, 873178784Skmacy enum dma_data_direction direction); 874178784Skmacy u64 (*dma_address)(struct ib_device *dev, 875178784Skmacy struct rdma_scatterlist *sg); 876178784Skmacy unsigned int (*dma_len)(struct ib_device *dev, 877178784Skmacy struct rdma_scatterlist *sg); 878178784Skmacy void (*sync_single_for_cpu)(struct ib_device *dev, 879178784Skmacy u64 dma_handle, 880178784Skmacy size_t size, 881178784Skmacy enum dma_data_direction dir); 882178784Skmacy void (*sync_single_for_device)(struct ib_device *dev, 883178784Skmacy u64 dma_handle, 884178784Skmacy size_t size, 885178784Skmacy enum dma_data_direction dir); 886178784Skmacy void *(*alloc_coherent)(struct ib_device *dev, 887178784Skmacy size_t size, 888178784Skmacy u64 *dma_handle, 889178784Skmacy int flag); 890178784Skmacy void (*free_coherent)(struct ib_device *dev, 891178784Skmacy size_t size, void *cpu_addr, 892178784Skmacy u64 dma_handle); 893178784Skmacy}; 894178784Skmacy 895178784Skmacystruct iw_cm_verbs; 896178784Skmacy 897178784Skmacystruct ib_device { 898178784Skmacy struct device *dma_device; 899178784Skmacy 900178784Skmacy char name[IB_DEVICE_NAME_MAX]; 901178784Skmacy 902178784Skmacy TAILQ_HEAD(, ib_event_handler) event_handler_list; 903178784Skmacy struct mtx event_handler_lock; 904178784Skmacy 905178784Skmacy TAILQ_ENTRY(ib_device) core_list; 906178784Skmacy TAILQ_HEAD(, ib_client_data) client_data_list; 907178784Skmacy struct mtx client_data_lock; 908178784Skmacy 909178784Skmacy struct ib_cache cache; 910178784Skmacy int *pkey_tbl_len; 911178784Skmacy int *gid_tbl_len; 912178784Skmacy 913178784Skmacy u32 flags; 914178784Skmacy 915178784Skmacy int num_comp_vectors; 916178784Skmacy 917178784Skmacy struct iw_cm_verbs *iwcm; 918178784Skmacy 919178784Skmacy int (*query_device)(struct ib_device *device, 920178784Skmacy struct ib_device_attr *device_attr); 921178784Skmacy int (*query_port)(struct ib_device *device, 922178784Skmacy u8 port_num, 923178784Skmacy struct ib_port_attr *port_attr); 924178784Skmacy int (*query_gid)(struct ib_device *device, 925178784Skmacy u8 port_num, int index, 926178784Skmacy union ib_gid *gid); 927178784Skmacy int (*query_pkey)(struct ib_device *device, 928178784Skmacy u8 port_num, u16 index, u16 *pkey); 929178784Skmacy int (*modify_device)(struct ib_device *device, 930178784Skmacy int device_modify_mask, 931178784Skmacy struct ib_device_modify *device_modify); 932178784Skmacy int (*modify_port)(struct ib_device *device, 933178784Skmacy u8 port_num, int port_modify_mask, 934178784Skmacy struct ib_port_modify *port_modify); 935178784Skmacy struct ib_ucontext * (*alloc_ucontext)(struct ib_device *device, 936178784Skmacy struct ib_udata *udata); 937178784Skmacy int (*dealloc_ucontext)(struct ib_ucontext *context); 938178784Skmacy int (*mmap)(struct ib_ucontext *context, 939178784Skmacy struct vm_object *vma); 940178784Skmacy struct ib_pd * (*alloc_pd)(struct ib_device *device, 941178784Skmacy struct ib_ucontext *context, 942178784Skmacy struct ib_udata *udata); 943178784Skmacy int (*dealloc_pd)(struct ib_pd *pd); 944178784Skmacy struct ib_ah * (*create_ah)(struct ib_pd *pd, 945178784Skmacy struct ib_ah_attr *ah_attr); 946178784Skmacy int (*modify_ah)(struct ib_ah *ah, 947178784Skmacy struct ib_ah_attr *ah_attr); 948178784Skmacy int (*query_ah)(struct ib_ah *ah, 949178784Skmacy struct ib_ah_attr *ah_attr); 950178784Skmacy int (*destroy_ah)(struct ib_ah *ah); 951178784Skmacy struct ib_srq * (*create_srq)(struct ib_pd *pd, 952178784Skmacy struct ib_srq_init_attr *srq_init_attr, 953178784Skmacy struct ib_udata *udata); 954178784Skmacy int (*modify_srq)(struct ib_srq *srq, 955178784Skmacy struct ib_srq_attr *srq_attr, 956178784Skmacy enum ib_srq_attr_mask srq_attr_mask, 957178784Skmacy struct ib_udata *udata); 958178784Skmacy int (*query_srq)(struct ib_srq *srq, 959178784Skmacy struct ib_srq_attr *srq_attr); 960178784Skmacy int (*destroy_srq)(struct ib_srq *srq); 961178784Skmacy int (*post_srq_recv)(struct ib_srq *srq, 962178784Skmacy struct ib_recv_wr *recv_wr, 963178784Skmacy struct ib_recv_wr **bad_recv_wr); 964178784Skmacy struct ib_qp * (*create_qp)(struct ib_pd *pd, 965178784Skmacy struct ib_qp_init_attr *qp_init_attr, 966178784Skmacy struct ib_udata *udata); 967178784Skmacy int (*modify_qp)(struct ib_qp *qp, 968178784Skmacy struct ib_qp_attr *qp_attr, 969178784Skmacy int qp_attr_mask, 970178784Skmacy struct ib_udata *udata); 971178784Skmacy int (*query_qp)(struct ib_qp *qp, 972178784Skmacy struct ib_qp_attr *qp_attr, 973178784Skmacy int qp_attr_mask, 974178784Skmacy struct ib_qp_init_attr *qp_init_attr); 975178784Skmacy int (*destroy_qp)(struct ib_qp *qp); 976178784Skmacy int (*post_send)(struct ib_qp *qp, 977178784Skmacy struct ib_send_wr *send_wr, 978178784Skmacy struct ib_send_wr **bad_send_wr); 979178784Skmacy int (*post_recv)(struct ib_qp *qp, 980178784Skmacy struct ib_recv_wr *recv_wr, 981178784Skmacy struct ib_recv_wr **bad_recv_wr); 982178784Skmacy struct ib_cq * (*create_cq)(struct ib_device *device, int cqe, 983178784Skmacy int comp_vector, 984178784Skmacy struct ib_ucontext *context, 985178784Skmacy struct ib_udata *udata); 986178784Skmacy int (*destroy_cq)(struct ib_cq *cq); 987178784Skmacy int (*resize_cq)(struct ib_cq *cq, int cqe, 988178784Skmacy struct ib_udata *udata); 989178784Skmacy int (*poll_cq)(struct ib_cq *cq, int num_entries, 990178784Skmacy struct ib_wc *wc); 991178784Skmacy int (*peek_cq)(struct ib_cq *cq, int wc_cnt); 992178784Skmacy int (*req_notify_cq)(struct ib_cq *cq, 993178784Skmacy enum ib_cq_notify_flags flags); 994178784Skmacy int (*req_ncomp_notif)(struct ib_cq *cq, 995178784Skmacy int wc_cnt); 996178784Skmacy struct ib_mr * (*get_dma_mr)(struct ib_pd *pd, 997178784Skmacy int mr_access_flags); 998178784Skmacy struct ib_mr * (*reg_phys_mr)(struct ib_pd *pd, 999178784Skmacy struct ib_phys_buf *phys_buf_array, 1000178784Skmacy int num_phys_buf, 1001178784Skmacy int mr_access_flags, 1002178784Skmacy u64 *iova_start); 1003178784Skmacy struct ib_mr * (*reg_user_mr)(struct ib_pd *pd, 1004178784Skmacy u64 start, u64 length, 1005178784Skmacy u64 virt_addr, 1006178784Skmacy int mr_access_flags, 1007178784Skmacy struct ib_udata *udata); 1008178784Skmacy int (*query_mr)(struct ib_mr *mr, 1009178784Skmacy struct ib_mr_attr *mr_attr); 1010178784Skmacy int (*dereg_mr)(struct ib_mr *mr); 1011178784Skmacy int (*rereg_phys_mr)(struct ib_mr *mr, 1012178784Skmacy int mr_rereg_mask, 1013178784Skmacy struct ib_pd *pd, 1014178784Skmacy struct ib_phys_buf *phys_buf_array, 1015178784Skmacy int num_phys_buf, 1016178784Skmacy int mr_access_flags, 1017178784Skmacy u64 *iova_start); 1018178784Skmacy struct ib_mw * (*alloc_mw)(struct ib_pd *pd); 1019178784Skmacy int (*bind_mw)(struct ib_qp *qp, 1020178784Skmacy struct ib_mw *mw, 1021178784Skmacy struct ib_mw_bind *mw_bind); 1022178784Skmacy int (*dealloc_mw)(struct ib_mw *mw); 1023178784Skmacy struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd, 1024178784Skmacy int mr_access_flags, 1025178784Skmacy struct ib_fmr_attr *fmr_attr); 1026178784Skmacy int (*map_phys_fmr)(struct ib_fmr *fmr, 1027178784Skmacy u64 *page_list, int list_len, 1028178784Skmacy u64 iova); 1029178784Skmacy int (*unmap_fmr)(struct ib_fmr_list_head *fmr_list); 1030178784Skmacy int (*dealloc_fmr)(struct ib_fmr *fmr); 1031178784Skmacy int (*attach_mcast)(struct ib_qp *qp, 1032178784Skmacy union ib_gid *gid, 1033178784Skmacy u16 lid); 1034178784Skmacy int (*detach_mcast)(struct ib_qp *qp, 1035178784Skmacy union ib_gid *gid, 1036178784Skmacy u16 lid); 1037178784Skmacy int (*process_mad)(struct ib_device *device, 1038178784Skmacy int process_mad_flags, 1039178784Skmacy u8 port_num, 1040178784Skmacy struct ib_wc *in_wc, 1041178784Skmacy struct ib_grh *in_grh, 1042178784Skmacy struct ib_mad *in_mad, 1043178784Skmacy struct ib_mad *out_mad); 1044178784Skmacy 1045178784Skmacy struct ib_dma_mapping_ops *dma_ops; 1046178784Skmacy 1047178784Skmacy struct module *owner; 1048178784Skmacy#ifdef notyet 1049178784Skmacy struct class_device class_dev; 1050178784Skmacy struct kobject ports_parent; 1051178784Skmacy struct list_head port_list; 1052178784Skmacy#endif 1053178784Skmacy enum { 1054178784Skmacy IB_DEV_UNINITIALIZED, 1055178784Skmacy IB_DEV_REGISTERED, 1056178784Skmacy IB_DEV_UNREGISTERED 1057178784Skmacy } reg_state; 1058178784Skmacy 1059178784Skmacy u64 uverbs_cmd_mask; 1060178784Skmacy int uverbs_abi_ver; 1061178784Skmacy 1062178784Skmacy char node_desc[64]; 1063178784Skmacy __be64 node_guid; 1064178784Skmacy u8 node_type; 1065178784Skmacy u8 phys_port_cnt; 1066178784Skmacy}; 1067178784Skmacy 1068178784Skmacystruct ib_client { 1069178784Skmacy char *name; 1070178784Skmacy void (*add) (struct ib_device *); 1071178784Skmacy void (*remove)(struct ib_device *); 1072178784Skmacy TAILQ_ENTRY(ib_client) list; 1073178784Skmacy}; 1074178784Skmacy 1075178784Skmacystruct ib_device *ib_alloc_device(size_t size); 1076178784Skmacyvoid ib_dealloc_device(struct ib_device *device); 1077178784Skmacy 1078178784Skmacyint ib_register_device (struct ib_device *device); 1079178784Skmacyvoid ib_unregister_device(struct ib_device *device); 1080178784Skmacy 1081178784Skmacyint ib_register_client (struct ib_client *client); 1082178784Skmacyvoid ib_unregister_client(struct ib_client *client); 1083178784Skmacy 1084178784Skmacyvoid *ib_get_client_data(struct ib_device *device, struct ib_client *client); 1085178784Skmacyvoid ib_set_client_data(struct ib_device *device, struct ib_client *client, 1086178784Skmacy void *data); 1087178784Skmacy 1088178784Skmacystatic inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len) 1089178784Skmacy{ 1090178784Skmacy return copyin(udata->inbuf, dest, len); 1091178784Skmacy} 1092178784Skmacy 1093178784Skmacystatic inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len) 1094178784Skmacy{ 1095178784Skmacy return copyout(src, udata->outbuf, len); 1096178784Skmacy} 1097178784Skmacy 1098178784Skmacy/** 1099178784Skmacy * ib_modify_qp_is_ok - Check that the supplied attribute mask 1100178784Skmacy * contains all required attributes and no attributes not allowed for 1101178784Skmacy * the given QP state transition. 1102178784Skmacy * @cur_state: Current QP state 1103178784Skmacy * @next_state: Next QP state 1104178784Skmacy * @type: QP type 1105178784Skmacy * @mask: Mask of supplied QP attributes 1106178784Skmacy * 1107178784Skmacy * This function is a helper function that a low-level driver's 1108178784Skmacy * modify_qp method can use to validate the consumer's input. It 1109178784Skmacy * checks that cur_state and next_state are valid QP states, that a 1110178784Skmacy * transition from cur_state to next_state is allowed by the IB spec, 1111178784Skmacy * and that the attribute mask supplied is allowed for the transition. 1112178784Skmacy */ 1113178784Skmacyint ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, 1114178784Skmacy enum ib_qp_type type, enum ib_qp_attr_mask mask); 1115178784Skmacy 1116178784Skmacyint ib_register_event_handler (struct ib_event_handler *event_handler); 1117178784Skmacyint ib_unregister_event_handler(struct ib_event_handler *event_handler); 1118178784Skmacyvoid ib_dispatch_event(struct ib_event *event); 1119178784Skmacy 1120178784Skmacyint ib_query_device(struct ib_device *device, 1121178784Skmacy struct ib_device_attr *device_attr); 1122178784Skmacy 1123178784Skmacyint ib_query_port(struct ib_device *device, 1124178784Skmacy u8 port_num, struct ib_port_attr *port_attr); 1125178784Skmacy 1126178784Skmacyint ib_query_gid(struct ib_device *device, 1127178784Skmacy u8 port_num, int index, union ib_gid *gid); 1128178784Skmacy 1129178784Skmacyint ib_query_pkey(struct ib_device *device, 1130178784Skmacy u8 port_num, u16 index, u16 *pkey); 1131178784Skmacy 1132178784Skmacyint ib_modify_device(struct ib_device *device, 1133178784Skmacy int device_modify_mask, 1134178784Skmacy struct ib_device_modify *device_modify); 1135178784Skmacy 1136178784Skmacyint ib_modify_port(struct ib_device *device, 1137178784Skmacy u8 port_num, int port_modify_mask, 1138178784Skmacy struct ib_port_modify *port_modify); 1139178784Skmacy 1140178784Skmacyint ib_find_gid(struct ib_device *device, union ib_gid *gid, 1141178784Skmacy u8 *port_num, u16 *index); 1142178784Skmacy 1143178784Skmacyint ib_find_pkey(struct ib_device *device, 1144178784Skmacy u8 port_num, u16 pkey, u16 *index); 1145178784Skmacy 1146178784Skmacy/** 1147178784Skmacy * ib_alloc_pd - Allocates an unused protection domain. 1148178784Skmacy * @device: The device on which to allocate the protection domain. 1149178784Skmacy * 1150178784Skmacy * A protection domain object provides an association between QPs, shared 1151178784Skmacy * receive queues, address handles, memory regions, and memory windows. 1152178784Skmacy */ 1153178784Skmacystruct ib_pd *ib_alloc_pd(struct ib_device *device); 1154178784Skmacy 1155178784Skmacy/** 1156178784Skmacy * ib_dealloc_pd - Deallocates a protection domain. 1157178784Skmacy * @pd: The protection domain to deallocate. 1158178784Skmacy */ 1159178784Skmacyint ib_dealloc_pd(struct ib_pd *pd); 1160178784Skmacy 1161178784Skmacy/** 1162178784Skmacy * ib_create_ah - Creates an address handle for the given address vector. 1163178784Skmacy * @pd: The protection domain associated with the address handle. 1164178784Skmacy * @ah_attr: The attributes of the address vector. 1165178784Skmacy * 1166178784Skmacy * The address handle is used to reference a local or global destination 1167178784Skmacy * in all UD QP post sends. 1168178784Skmacy */ 1169178784Skmacystruct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); 1170178784Skmacy 1171178784Skmacy/** 1172178784Skmacy * ib_init_ah_from_wc - Initializes address handle attributes from a 1173178784Skmacy * work completion. 1174178784Skmacy * @device: Device on which the received message arrived. 1175178784Skmacy * @port_num: Port on which the received message arrived. 1176178784Skmacy * @wc: Work completion associated with the received message. 1177178784Skmacy * @grh: References the received global route header. This parameter is 1178178784Skmacy * ignored unless the work completion indicates that the GRH is valid. 1179178784Skmacy * @ah_attr: Returned attributes that can be used when creating an address 1180178784Skmacy * handle for replying to the message. 1181178784Skmacy */ 1182178784Skmacyint ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, 1183178784Skmacy struct ib_grh *grh, struct ib_ah_attr *ah_attr); 1184178784Skmacy 1185178784Skmacy/** 1186178784Skmacy * ib_create_ah_from_wc - Creates an address handle associated with the 1187178784Skmacy * sender of the specified work completion. 1188178784Skmacy * @pd: The protection domain associated with the address handle. 1189178784Skmacy * @wc: Work completion information associated with a received message. 1190178784Skmacy * @grh: References the received global route header. This parameter is 1191178784Skmacy * ignored unless the work completion indicates that the GRH is valid. 1192178784Skmacy * @port_num: The outbound port number to associate with the address. 1193178784Skmacy * 1194178784Skmacy * The address handle is used to reference a local or global destination 1195178784Skmacy * in all UD QP post sends. 1196178784Skmacy */ 1197178784Skmacystruct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, 1198178784Skmacy struct ib_grh *grh, u8 port_num); 1199178784Skmacy 1200178784Skmacy/** 1201178784Skmacy * ib_modify_ah - Modifies the address vector associated with an address 1202178784Skmacy * handle. 1203178784Skmacy * @ah: The address handle to modify. 1204178784Skmacy * @ah_attr: The new address vector attributes to associate with the 1205178784Skmacy * address handle. 1206178784Skmacy */ 1207178784Skmacyint ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); 1208178784Skmacy 1209178784Skmacy/** 1210178784Skmacy * ib_query_ah - Queries the address vector associated with an address 1211178784Skmacy * handle. 1212178784Skmacy * @ah: The address handle to query. 1213178784Skmacy * @ah_attr: The address vector attributes associated with the address 1214178784Skmacy * handle. 1215178784Skmacy */ 1216178784Skmacyint ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); 1217178784Skmacy 1218178784Skmacy/** 1219178784Skmacy * ib_destroy_ah - Destroys an address handle. 1220178784Skmacy * @ah: The address handle to destroy. 1221178784Skmacy */ 1222178784Skmacyint ib_destroy_ah(struct ib_ah *ah); 1223178784Skmacy 1224178784Skmacy/** 1225178784Skmacy * ib_create_srq - Creates a SRQ associated with the specified protection 1226178784Skmacy * domain. 1227178784Skmacy * @pd: The protection domain associated with the SRQ. 1228178784Skmacy * @srq_init_attr: A list of initial attributes required to create the 1229178784Skmacy * SRQ. If SRQ creation succeeds, then the attributes are updated to 1230178784Skmacy * the actual capabilities of the created SRQ. 1231178784Skmacy * 1232178784Skmacy * srq_attr->max_wr and srq_attr->max_sge are read the determine the 1233178784Skmacy * requested size of the SRQ, and set to the actual values allocated 1234178784Skmacy * on return. If ib_create_srq() succeeds, then max_wr and max_sge 1235178784Skmacy * will always be at least as large as the requested values. 1236178784Skmacy */ 1237178784Skmacystruct ib_srq *ib_create_srq(struct ib_pd *pd, 1238178784Skmacy struct ib_srq_init_attr *srq_init_attr); 1239178784Skmacy 1240178784Skmacy/** 1241178784Skmacy * ib_modify_srq - Modifies the attributes for the specified SRQ. 1242178784Skmacy * @srq: The SRQ to modify. 1243178784Skmacy * @srq_attr: On input, specifies the SRQ attributes to modify. On output, 1244178784Skmacy * the current values of selected SRQ attributes are returned. 1245178784Skmacy * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ 1246178784Skmacy * are being modified. 1247178784Skmacy * 1248178784Skmacy * The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or 1249178784Skmacy * IB_SRQ_LIMIT to set the SRQ's limit and request notification when 1250178784Skmacy * the number of receives queued drops below the limit. 1251178784Skmacy */ 1252178784Skmacyint ib_modify_srq(struct ib_srq *srq, 1253178784Skmacy struct ib_srq_attr *srq_attr, 1254178784Skmacy enum ib_srq_attr_mask srq_attr_mask); 1255178784Skmacy 1256178784Skmacy/** 1257178784Skmacy * ib_query_srq - Returns the attribute list and current values for the 1258178784Skmacy * specified SRQ. 1259178784Skmacy * @srq: The SRQ to query. 1260178784Skmacy * @srq_attr: The attributes of the specified SRQ. 1261178784Skmacy */ 1262178784Skmacyint ib_query_srq(struct ib_srq *srq, 1263178784Skmacy struct ib_srq_attr *srq_attr); 1264178784Skmacy 1265178784Skmacy/** 1266178784Skmacy * ib_destroy_srq - Destroys the specified SRQ. 1267178784Skmacy * @srq: The SRQ to destroy. 1268178784Skmacy */ 1269178784Skmacyint ib_destroy_srq(struct ib_srq *srq); 1270178784Skmacy 1271178784Skmacy/** 1272178784Skmacy * ib_post_srq_recv - Posts a list of work requests to the specified SRQ. 1273178784Skmacy * @srq: The SRQ to post the work request on. 1274178784Skmacy * @recv_wr: A list of work requests to post on the receive queue. 1275178784Skmacy * @bad_recv_wr: On an immediate failure, this parameter will reference 1276178784Skmacy * the work request that failed to be posted on the QP. 1277178784Skmacy */ 1278178784Skmacystatic inline int ib_post_srq_recv(struct ib_srq *srq, 1279178784Skmacy struct ib_recv_wr *recv_wr, 1280178784Skmacy struct ib_recv_wr **bad_recv_wr) 1281178784Skmacy{ 1282178784Skmacy return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr); 1283178784Skmacy} 1284178784Skmacy 1285178784Skmacy/** 1286178784Skmacy * ib_create_qp - Creates a QP associated with the specified protection 1287178784Skmacy * domain. 1288178784Skmacy * @pd: The protection domain associated with the QP. 1289178784Skmacy * @qp_init_attr: A list of initial attributes required to create the 1290178784Skmacy * QP. If QP creation succeeds, then the attributes are updated to 1291178784Skmacy * the actual capabilities of the created QP. 1292178784Skmacy */ 1293178784Skmacystruct ib_qp *ib_create_qp(struct ib_pd *pd, 1294178784Skmacy struct ib_qp_init_attr *qp_init_attr); 1295178784Skmacy 1296178784Skmacy/** 1297178784Skmacy * ib_modify_qp - Modifies the attributes for the specified QP and then 1298178784Skmacy * transitions the QP to the given state. 1299178784Skmacy * @qp: The QP to modify. 1300178784Skmacy * @qp_attr: On input, specifies the QP attributes to modify. On output, 1301178784Skmacy * the current values of selected QP attributes are returned. 1302178784Skmacy * @qp_attr_mask: A bit-mask used to specify which attributes of the QP 1303178784Skmacy * are being modified. 1304178784Skmacy */ 1305178784Skmacyint ib_modify_qp(struct ib_qp *qp, 1306178784Skmacy struct ib_qp_attr *qp_attr, 1307178784Skmacy int qp_attr_mask); 1308178784Skmacy 1309178784Skmacy/** 1310178784Skmacy * ib_query_qp - Returns the attribute list and current values for the 1311178784Skmacy * specified QP. 1312178784Skmacy * @qp: The QP to query. 1313178784Skmacy * @qp_attr: The attributes of the specified QP. 1314178784Skmacy * @qp_attr_mask: A bit-mask used to select specific attributes to query. 1315178784Skmacy * @qp_init_attr: Additional attributes of the selected QP. 1316178784Skmacy * 1317178784Skmacy * The qp_attr_mask may be used to limit the query to gathering only the 1318178784Skmacy * selected attributes. 1319178784Skmacy */ 1320178784Skmacyint ib_query_qp(struct ib_qp *qp, 1321178784Skmacy struct ib_qp_attr *qp_attr, 1322178784Skmacy int qp_attr_mask, 1323178784Skmacy struct ib_qp_init_attr *qp_init_attr); 1324178784Skmacy 1325178784Skmacy/** 1326178784Skmacy * ib_destroy_qp - Destroys the specified QP. 1327178784Skmacy * @qp: The QP to destroy. 1328178784Skmacy */ 1329178784Skmacyint ib_destroy_qp(struct ib_qp *qp); 1330178784Skmacy 1331178784Skmacy/** 1332178784Skmacy * ib_post_send - Posts a list of work requests to the send queue of 1333178784Skmacy * the specified QP. 1334178784Skmacy * @qp: The QP to post the work request on. 1335178784Skmacy * @send_wr: A list of work requests to post on the send queue. 1336178784Skmacy * @bad_send_wr: On an immediate failure, this parameter will reference 1337178784Skmacy * the work request that failed to be posted on the QP. 1338178784Skmacy */ 1339178784Skmacystatic inline int ib_post_send(struct ib_qp *qp, 1340178784Skmacy struct ib_send_wr *send_wr, 1341178784Skmacy struct ib_send_wr **bad_send_wr) 1342178784Skmacy{ 1343178784Skmacy return qp->device->post_send(qp, send_wr, bad_send_wr); 1344178784Skmacy} 1345178784Skmacy 1346178784Skmacy/** 1347178784Skmacy * ib_post_recv - Posts a list of work requests to the receive queue of 1348178784Skmacy * the specified QP. 1349178784Skmacy * @qp: The QP to post the work request on. 1350178784Skmacy * @recv_wr: A list of work requests to post on the receive queue. 1351178784Skmacy * @bad_recv_wr: On an immediate failure, this parameter will reference 1352178784Skmacy * the work request that failed to be posted on the QP. 1353178784Skmacy */ 1354178784Skmacystatic inline int ib_post_recv(struct ib_qp *qp, 1355178784Skmacy struct ib_recv_wr *recv_wr, 1356178784Skmacy struct ib_recv_wr **bad_recv_wr) 1357178784Skmacy{ 1358178784Skmacy return qp->device->post_recv(qp, recv_wr, bad_recv_wr); 1359178784Skmacy} 1360178784Skmacy 1361178784Skmacy/** 1362178784Skmacy * ib_create_cq - Creates a CQ on the specified device. 1363178784Skmacy * @device: The device on which to create the CQ. 1364178784Skmacy * @comp_handler: A user-specified callback that is invoked when a 1365178784Skmacy * completion event occurs on the CQ. 1366178784Skmacy * @event_handler: A user-specified callback that is invoked when an 1367178784Skmacy * asynchronous event not associated with a completion occurs on the CQ. 1368178784Skmacy * @cq_context: Context associated with the CQ returned to the user via 1369178784Skmacy * the associated completion and event handlers. 1370178784Skmacy * @cqe: The minimum size of the CQ. 1371178784Skmacy * @comp_vector - Completion vector used to signal completion events. 1372178784Skmacy * Must be >= 0 and < context->num_comp_vectors. 1373178784Skmacy * 1374178784Skmacy * Users can examine the cq structure to determine the actual CQ size. 1375178784Skmacy */ 1376178784Skmacystruct ib_cq *ib_create_cq(struct ib_device *device, 1377178784Skmacy ib_comp_handler comp_handler, 1378178784Skmacy void (*event_handler)(struct ib_event *, void *), 1379178784Skmacy void *cq_context, int cqe, int comp_vector); 1380178784Skmacy 1381178784Skmacy/** 1382178784Skmacy * ib_resize_cq - Modifies the capacity of the CQ. 1383178784Skmacy * @cq: The CQ to resize. 1384178784Skmacy * @cqe: The minimum size of the CQ. 1385178784Skmacy * 1386178784Skmacy * Users can examine the cq structure to determine the actual CQ size. 1387178784Skmacy */ 1388178784Skmacyint ib_resize_cq(struct ib_cq *cq, int cqe); 1389178784Skmacy 1390178784Skmacy/** 1391178784Skmacy * ib_destroy_cq - Destroys the specified CQ. 1392178784Skmacy * @cq: The CQ to destroy. 1393178784Skmacy */ 1394178784Skmacyint ib_destroy_cq(struct ib_cq *cq); 1395178784Skmacy 1396178784Skmacy/** 1397178784Skmacy * ib_poll_cq - poll a CQ for completion(s) 1398178784Skmacy * @cq:the CQ being polled 1399178784Skmacy * @num_entries:maximum number of completions to return 1400178784Skmacy * @wc:array of at least @num_entries &struct ib_wc where completions 1401178784Skmacy * will be returned 1402178784Skmacy * 1403178784Skmacy * Poll a CQ for (possibly multiple) completions. If the return value 1404178784Skmacy * is < 0, an error occurred. If the return value is >= 0, it is the 1405178784Skmacy * number of completions returned. If the return value is 1406178784Skmacy * non-negative and < num_entries, then the CQ was emptied. 1407178784Skmacy */ 1408178784Skmacystatic inline int ib_poll_cq(struct ib_cq *cq, int num_entries, 1409178784Skmacy struct ib_wc *wc) 1410178784Skmacy{ 1411178784Skmacy return cq->device->poll_cq(cq, num_entries, wc); 1412178784Skmacy} 1413178784Skmacy 1414178784Skmacy/** 1415178784Skmacy * ib_peek_cq - Returns the number of unreaped completions currently 1416178784Skmacy * on the specified CQ. 1417178784Skmacy * @cq: The CQ to peek. 1418178784Skmacy * @wc_cnt: A minimum number of unreaped completions to check for. 1419178784Skmacy * 1420178784Skmacy * If the number of unreaped completions is greater than or equal to wc_cnt, 1421178784Skmacy * this function returns wc_cnt, otherwise, it returns the actual number of 1422178784Skmacy * unreaped completions. 1423178784Skmacy */ 1424178784Skmacyint ib_peek_cq(struct ib_cq *cq, int wc_cnt); 1425178784Skmacy 1426178784Skmacy/** 1427178784Skmacy * ib_req_notify_cq - Request completion notification on a CQ. 1428178784Skmacy * @cq: The CQ to generate an event for. 1429178784Skmacy * @flags: 1430178784Skmacy * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP 1431178784Skmacy * to request an event on the next solicited event or next work 1432178784Skmacy * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS 1433178784Skmacy * may also be |ed in to request a hint about missed events, as 1434178784Skmacy * described below. 1435178784Skmacy * 1436178784Skmacy * Return Value: 1437178784Skmacy * < 0 means an error occurred while requesting notification 1438178784Skmacy * == 0 means notification was requested successfully, and if 1439178784Skmacy * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events 1440178784Skmacy * were missed and it is safe to wait for another event. In 1441178784Skmacy * this case is it guaranteed that any work completions added 1442178784Skmacy * to the CQ since the last CQ poll will trigger a completion 1443178784Skmacy * notification event. 1444178784Skmacy * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed 1445178784Skmacy * in. It means that the consumer must poll the CQ again to 1446178784Skmacy * make sure it is empty to avoid missing an event because of a 1447178784Skmacy * race between requesting notification and an entry being 1448178784Skmacy * added to the CQ. This return value means it is possible 1449178784Skmacy * (but not guaranteed) that a work completion has been added 1450178784Skmacy * to the CQ since the last poll without triggering a 1451178784Skmacy * completion notification event. 1452178784Skmacy */ 1453178784Skmacystatic inline int ib_req_notify_cq(struct ib_cq *cq, 1454178784Skmacy enum ib_cq_notify_flags flags) 1455178784Skmacy{ 1456178784Skmacy return cq->device->req_notify_cq(cq, flags); 1457178784Skmacy} 1458178784Skmacy 1459178784Skmacy/** 1460178784Skmacy * ib_req_ncomp_notif - Request completion notification when there are 1461178784Skmacy * at least the specified number of unreaped completions on the CQ. 1462178784Skmacy * @cq: The CQ to generate an event for. 1463178784Skmacy * @wc_cnt: The number of unreaped completions that should be on the 1464178784Skmacy * CQ before an event is generated. 1465178784Skmacy */ 1466178784Skmacystatic inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) 1467178784Skmacy{ 1468178784Skmacy return cq->device->req_ncomp_notif ? 1469178784Skmacy cq->device->req_ncomp_notif(cq, wc_cnt) : 1470178784Skmacy ENOSYS; 1471178784Skmacy} 1472178784Skmacy 1473178784Skmacy/** 1474178784Skmacy * ib_get_dma_mr - Returns a memory region for system memory that is 1475178784Skmacy * usable for DMA. 1476178784Skmacy * @pd: The protection domain associated with the memory region. 1477178784Skmacy * @mr_access_flags: Specifies the memory access rights. 1478178784Skmacy * 1479178784Skmacy * Note that the ib_dma_*() functions defined below must be used 1480178784Skmacy * to create/destroy addresses used with the Lkey or Rkey returned 1481178784Skmacy * by ib_get_dma_mr(). 1482178784Skmacy */ 1483178784Skmacystruct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags); 1484178784Skmacy#ifdef notyet 1485178784Skmacy/** 1486178784Skmacy * ib_dma_mapping_error - check a DMA addr for error 1487178784Skmacy * @dev: The device for which the dma_addr was created 1488178784Skmacy * @dma_addr: The DMA address to check 1489178784Skmacy */ 1490178784Skmacystatic inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr) 1491178784Skmacy{ 1492178784Skmacy if (dev->dma_ops) 1493178784Skmacy return dev->dma_ops->mapping_error(dev, dma_addr); 1494178784Skmacy return dma_mapping_error(dma_addr); 1495178784Skmacy} 1496178784Skmacy 1497178784Skmacy/** 1498178784Skmacy * ib_dma_map_single - Map a kernel virtual address to DMA address 1499178784Skmacy * @dev: The device for which the dma_addr is to be created 1500178784Skmacy * @cpu_addr: The kernel virtual address 1501178784Skmacy * @size: The size of the region in bytes 1502178784Skmacy * @direction: The direction of the DMA 1503178784Skmacy */ 1504178784Skmacystatic inline u64 ib_dma_map_single(struct ib_device *dev, 1505178784Skmacy void *cpu_addr, size_t size, 1506178784Skmacy enum dma_data_direction direction) 1507178784Skmacy{ 1508178784Skmacy if (dev->dma_ops) 1509178784Skmacy return dev->dma_ops->map_single(dev, cpu_addr, size, direction); 1510178784Skmacy return dma_map_single(dev->dma_device, cpu_addr, size, direction); 1511178784Skmacy} 1512178784Skmacy 1513178784Skmacy/** 1514178784Skmacy * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single() 1515178784Skmacy * @dev: The device for which the DMA address was created 1516178784Skmacy * @addr: The DMA address 1517178784Skmacy * @size: The size of the region in bytes 1518178784Skmacy * @direction: The direction of the DMA 1519178784Skmacy */ 1520178784Skmacystatic inline void ib_dma_unmap_single(struct ib_device *dev, 1521178784Skmacy u64 addr, size_t size, 1522178784Skmacy enum dma_data_direction direction) 1523178784Skmacy{ 1524178784Skmacy if (dev->dma_ops) 1525178784Skmacy dev->dma_ops->unmap_single(dev, addr, size, direction); 1526178784Skmacy else 1527178784Skmacy dma_unmap_single(dev->dma_device, addr, size, direction); 1528178784Skmacy} 1529178784Skmacy 1530178784Skmacy/** 1531178784Skmacy * ib_dma_map_page - Map a physical page to DMA address 1532178784Skmacy * @dev: The device for which the dma_addr is to be created 1533178784Skmacy * @page: The page to be mapped 1534178784Skmacy * @offset: The offset within the page 1535178784Skmacy * @size: The size of the region in bytes 1536178784Skmacy * @direction: The direction of the DMA 1537178784Skmacy */ 1538178784Skmacystatic inline u64 ib_dma_map_page(struct ib_device *dev, 1539178784Skmacy struct page *page, 1540178784Skmacy unsigned long offset, 1541178784Skmacy size_t size, 1542178784Skmacy enum dma_data_direction direction) 1543178784Skmacy{ 1544178784Skmacy if (dev->dma_ops) 1545178784Skmacy return dev->dma_ops->map_page(dev, page, offset, size, direction); 1546178784Skmacy return dma_map_page(dev->dma_device, page, offset, size, direction); 1547178784Skmacy} 1548178784Skmacy 1549178784Skmacy/** 1550178784Skmacy * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page() 1551178784Skmacy * @dev: The device for which the DMA address was created 1552178784Skmacy * @addr: The DMA address 1553178784Skmacy * @size: The size of the region in bytes 1554178784Skmacy * @direction: The direction of the DMA 1555178784Skmacy */ 1556178784Skmacystatic inline void ib_dma_unmap_page(struct ib_device *dev, 1557178784Skmacy u64 addr, size_t size, 1558178784Skmacy enum dma_data_direction direction) 1559178784Skmacy{ 1560178784Skmacy if (dev->dma_ops) 1561178784Skmacy dev->dma_ops->unmap_page(dev, addr, size, direction); 1562178784Skmacy else 1563178784Skmacy dma_unmap_page(dev->dma_device, addr, size, direction); 1564178784Skmacy} 1565178784Skmacy 1566178784Skmacy/** 1567178784Skmacy * ib_dma_map_sg - Map a scatter/gather list to DMA addresses 1568178784Skmacy * @dev: The device for which the DMA addresses are to be created 1569178784Skmacy * @sg: The array of scatter/gather entries 1570178784Skmacy * @nents: The number of scatter/gather entries 1571178784Skmacy * @direction: The direction of the DMA 1572178784Skmacy */ 1573178784Skmacystatic inline int ib_dma_map_sg(struct ib_device *dev, 1574178784Skmacy struct rdma_scatterlist *sg, int nents, 1575178784Skmacy enum dma_data_direction direction) 1576178784Skmacy{ 1577178784Skmacy if (dev->dma_ops) 1578178784Skmacy return dev->dma_ops->map_sg(dev, sg, nents, direction); 1579178784Skmacy return dma_map_sg(dev->dma_device, sg, nents, direction); 1580178784Skmacy} 1581178784Skmacy 1582178784Skmacy/** 1583178784Skmacy * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses 1584178784Skmacy * @dev: The device for which the DMA addresses were created 1585178784Skmacy * @sg: The array of scatter/gather entries 1586178784Skmacy * @nents: The number of scatter/gather entries 1587178784Skmacy * @direction: The direction of the DMA 1588178784Skmacy */ 1589178784Skmacystatic inline void ib_dma_unmap_sg(struct ib_device *dev, 1590178784Skmacy struct rdma_scatterlist *sg, int nents, 1591178784Skmacy enum dma_data_direction direction) 1592178784Skmacy{ 1593178784Skmacy if (dev->dma_ops) 1594178784Skmacy dev->dma_ops->unmap_sg(dev, sg, nents, direction); 1595178784Skmacy else 1596178784Skmacy dma_unmap_sg(dev->dma_device, sg, nents, direction); 1597178784Skmacy} 1598178784Skmacy 1599178784Skmacy/** 1600178784Skmacy * ib_sg_dma_address - Return the DMA address from a scatter/gather entry 1601178784Skmacy * @dev: The device for which the DMA addresses were created 1602178784Skmacy * @sg: The scatter/gather entry 1603178784Skmacy */ 1604178784Skmacystatic inline u64 ib_sg_dma_address(struct ib_device *dev, 1605178784Skmacy struct rdma_scatterlist *sg) 1606178784Skmacy{ 1607178784Skmacy if (dev->dma_ops) 1608178784Skmacy return dev->dma_ops->dma_address(dev, sg); 1609178784Skmacy return sg_dma_address(sg); 1610178784Skmacy} 1611178784Skmacy 1612178784Skmacy/** 1613178784Skmacy * ib_sg_dma_len - Return the DMA length from a scatter/gather entry 1614178784Skmacy * @dev: The device for which the DMA addresses were created 1615178784Skmacy * @sg: The scatter/gather entry 1616178784Skmacy */ 1617178784Skmacystatic inline unsigned int ib_sg_dma_len(struct ib_device *dev, 1618178784Skmacy struct rdma_scatterlist *sg) 1619178784Skmacy{ 1620178784Skmacy if (dev->dma_ops) 1621178784Skmacy return dev->dma_ops->dma_len(dev, sg); 1622178784Skmacy return sg_dma_len(sg); 1623178784Skmacy} 1624178784Skmacy 1625178784Skmacy/** 1626178784Skmacy * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU 1627178784Skmacy * @dev: The device for which the DMA address was created 1628178784Skmacy * @addr: The DMA address 1629178784Skmacy * @size: The size of the region in bytes 1630178784Skmacy * @dir: The direction of the DMA 1631178784Skmacy */ 1632178784Skmacystatic inline void ib_dma_sync_single_for_cpu(struct ib_device *dev, 1633178784Skmacy u64 addr, 1634178784Skmacy size_t size, 1635178784Skmacy enum dma_data_direction dir) 1636178784Skmacy{ 1637178784Skmacy if (dev->dma_ops) 1638178784Skmacy dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir); 1639178784Skmacy else 1640178784Skmacy dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); 1641178784Skmacy} 1642178784Skmacy 1643178784Skmacy/** 1644178784Skmacy * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device 1645178784Skmacy * @dev: The device for which the DMA address was created 1646178784Skmacy * @addr: The DMA address 1647178784Skmacy * @size: The size of the region in bytes 1648178784Skmacy * @dir: The direction of the DMA 1649178784Skmacy */ 1650178784Skmacystatic inline void ib_dma_sync_single_for_device(struct ib_device *dev, 1651178784Skmacy u64 addr, 1652178784Skmacy size_t size, 1653178784Skmacy enum dma_data_direction dir) 1654178784Skmacy{ 1655178784Skmacy if (dev->dma_ops) 1656178784Skmacy dev->dma_ops->sync_single_for_device(dev, addr, size, dir); 1657178784Skmacy else 1658178784Skmacy dma_sync_single_for_device(dev->dma_device, addr, size, dir); 1659178784Skmacy} 1660178784Skmacy 1661178784Skmacy/** 1662178784Skmacy * ib_dma_alloc_coherent - Allocate memory and map it for DMA 1663178784Skmacy * @dev: The device for which the DMA address is requested 1664178784Skmacy * @size: The size of the region to allocate in bytes 1665178784Skmacy * @dma_handle: A pointer for returning the DMA address of the region 1666178784Skmacy * @flag: memory allocator flags 1667178784Skmacy */ 1668178784Skmacystatic inline void *ib_dma_alloc_coherent(struct ib_device *dev, 1669178784Skmacy size_t size, 1670178784Skmacy u64 *dma_handle, 1671178784Skmacy gfp_t flag) 1672178784Skmacy{ 1673178784Skmacy if (dev->dma_ops) 1674178784Skmacy return dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag); 1675178784Skmacy else { 1676178784Skmacy dma_addr_t handle; 1677178784Skmacy void *ret; 1678178784Skmacy 1679178784Skmacy ret = dma_alloc_coherent(dev->dma_device, size, &handle, flag); 1680178784Skmacy *dma_handle = handle; 1681178784Skmacy return ret; 1682178784Skmacy } 1683178784Skmacy} 1684178784Skmacy 1685178784Skmacy/** 1686178784Skmacy * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent() 1687178784Skmacy * @dev: The device for which the DMA addresses were allocated 1688178784Skmacy * @size: The size of the region 1689178784Skmacy * @cpu_addr: the address returned by ib_dma_alloc_coherent() 1690178784Skmacy * @dma_handle: the DMA address returned by ib_dma_alloc_coherent() 1691178784Skmacy */ 1692178784Skmacystatic inline void ib_dma_free_coherent(struct ib_device *dev, 1693178784Skmacy size_t size, void *cpu_addr, 1694178784Skmacy u64 dma_handle) 1695178784Skmacy{ 1696178784Skmacy if (dev->dma_ops) 1697178784Skmacy dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); 1698178784Skmacy else 1699178784Skmacy dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle); 1700178784Skmacy} 1701178784Skmacy#endif 1702178784Skmacy/** 1703178784Skmacy * ib_reg_phys_mr - Prepares a virtually addressed memory region for use 1704178784Skmacy * by an HCA. 1705178784Skmacy * @pd: The protection domain associated assigned to the registered region. 1706178784Skmacy * @phys_buf_array: Specifies a list of physical buffers to use in the 1707178784Skmacy * memory region. 1708178784Skmacy * @num_phys_buf: Specifies the size of the phys_buf_array. 1709178784Skmacy * @mr_access_flags: Specifies the memory access rights. 1710178784Skmacy * @iova_start: The offset of the region's starting I/O virtual address. 1711178784Skmacy */ 1712178784Skmacystruct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, 1713178784Skmacy struct ib_phys_buf *phys_buf_array, 1714178784Skmacy int num_phys_buf, 1715178784Skmacy int mr_access_flags, 1716178784Skmacy u64 *iova_start); 1717178784Skmacy 1718178784Skmacy/** 1719178784Skmacy * ib_rereg_phys_mr - Modifies the attributes of an existing memory region. 1720178784Skmacy * Conceptually, this call performs the functions deregister memory region 1721178784Skmacy * followed by register physical memory region. Where possible, 1722178784Skmacy * resources are reused instead of deallocated and reallocated. 1723178784Skmacy * @mr: The memory region to modify. 1724178784Skmacy * @mr_rereg_mask: A bit-mask used to indicate which of the following 1725178784Skmacy * properties of the memory region are being modified. 1726178784Skmacy * @pd: If %IB_MR_REREG_PD is set in mr_rereg_mask, this field specifies 1727178784Skmacy * the new protection domain to associated with the memory region, 1728178784Skmacy * otherwise, this parameter is ignored. 1729178784Skmacy * @phys_buf_array: If %IB_MR_REREG_TRANS is set in mr_rereg_mask, this 1730178784Skmacy * field specifies a list of physical buffers to use in the new 1731178784Skmacy * translation, otherwise, this parameter is ignored. 1732178784Skmacy * @num_phys_buf: If %IB_MR_REREG_TRANS is set in mr_rereg_mask, this 1733178784Skmacy * field specifies the size of the phys_buf_array, otherwise, this 1734178784Skmacy * parameter is ignored. 1735178784Skmacy * @mr_access_flags: If %IB_MR_REREG_ACCESS is set in mr_rereg_mask, this 1736178784Skmacy * field specifies the new memory access rights, otherwise, this 1737178784Skmacy * parameter is ignored. 1738178784Skmacy * @iova_start: The offset of the region's starting I/O virtual address. 1739178784Skmacy */ 1740178784Skmacyint ib_rereg_phys_mr(struct ib_mr *mr, 1741178784Skmacy int mr_rereg_mask, 1742178784Skmacy struct ib_pd *pd, 1743178784Skmacy struct ib_phys_buf *phys_buf_array, 1744178784Skmacy int num_phys_buf, 1745178784Skmacy int mr_access_flags, 1746178784Skmacy u64 *iova_start); 1747178784Skmacy 1748178784Skmacy/** 1749178784Skmacy * ib_query_mr - Retrieves information about a specific memory region. 1750178784Skmacy * @mr: The memory region to retrieve information about. 1751178784Skmacy * @mr_attr: The attributes of the specified memory region. 1752178784Skmacy */ 1753178784Skmacyint ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr); 1754178784Skmacy 1755178784Skmacy/** 1756178784Skmacy * ib_dereg_mr - Deregisters a memory region and removes it from the 1757178784Skmacy * HCA translation table. 1758178784Skmacy * @mr: The memory region to deregister. 1759178784Skmacy */ 1760178784Skmacyint ib_dereg_mr(struct ib_mr *mr); 1761178784Skmacy 1762178784Skmacy/** 1763178784Skmacy * ib_alloc_mw - Allocates a memory window. 1764178784Skmacy * @pd: The protection domain associated with the memory window. 1765178784Skmacy */ 1766178784Skmacystruct ib_mw *ib_alloc_mw(struct ib_pd *pd); 1767178784Skmacy 1768178784Skmacy/** 1769178784Skmacy * ib_bind_mw - Posts a work request to the send queue of the specified 1770178784Skmacy * QP, which binds the memory window to the given address range and 1771178784Skmacy * remote access attributes. 1772178784Skmacy * @qp: QP to post the bind work request on. 1773178784Skmacy * @mw: The memory window to bind. 1774178784Skmacy * @mw_bind: Specifies information about the memory window, including 1775178784Skmacy * its address range, remote access rights, and associated memory region. 1776178784Skmacy */ 1777178784Skmacystatic inline int ib_bind_mw(struct ib_qp *qp, 1778178784Skmacy struct ib_mw *mw, 1779178784Skmacy struct ib_mw_bind *mw_bind) 1780178784Skmacy{ 1781178784Skmacy /* XXX reference counting in corresponding MR? */ 1782178784Skmacy return mw->device->bind_mw ? 1783178784Skmacy mw->device->bind_mw(qp, mw, mw_bind) : 1784178784Skmacy ENOSYS; 1785178784Skmacy} 1786178784Skmacy 1787178784Skmacy/** 1788178784Skmacy * ib_dealloc_mw - Deallocates a memory window. 1789178784Skmacy * @mw: The memory window to deallocate. 1790178784Skmacy */ 1791178784Skmacyint ib_dealloc_mw(struct ib_mw *mw); 1792178784Skmacy 1793178784Skmacy/** 1794178784Skmacy * ib_alloc_fmr - Allocates a unmapped fast memory region. 1795178784Skmacy * @pd: The protection domain associated with the unmapped region. 1796178784Skmacy * @mr_access_flags: Specifies the memory access rights. 1797178784Skmacy * @fmr_attr: Attributes of the unmapped region. 1798178784Skmacy * 1799178784Skmacy * A fast memory region must be mapped before it can be used as part of 1800178784Skmacy * a work request. 1801178784Skmacy */ 1802178784Skmacystruct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, 1803178784Skmacy int mr_access_flags, 1804178784Skmacy struct ib_fmr_attr *fmr_attr); 1805178784Skmacy 1806178784Skmacy/** 1807178784Skmacy * ib_map_phys_fmr - Maps a list of physical pages to a fast memory region. 1808178784Skmacy * @fmr: The fast memory region to associate with the pages. 1809178784Skmacy * @page_list: An array of physical pages to map to the fast memory region. 1810178784Skmacy * @list_len: The number of pages in page_list. 1811178784Skmacy * @iova: The I/O virtual address to use with the mapped region. 1812178784Skmacy */ 1813178784Skmacystatic inline int ib_map_phys_fmr(struct ib_fmr *fmr, 1814178784Skmacy u64 *page_list, int list_len, 1815178784Skmacy u64 iova) 1816178784Skmacy{ 1817178784Skmacy return fmr->device->map_phys_fmr(fmr, page_list, list_len, iova); 1818178784Skmacy} 1819178784Skmacy 1820178784Skmacy/** 1821178784Skmacy * ib_unmap_fmr - Removes the mapping from a list of fast memory regions. 1822178784Skmacy * @fmr_list: A linked list of fast memory regions to unmap. 1823178784Skmacy */ 1824178784Skmacyint ib_unmap_fmr(struct ib_fmr_list_head *fmr_list); 1825178784Skmacy 1826178784Skmacy/** 1827178784Skmacy * ib_dealloc_fmr - Deallocates a fast memory region. 1828178784Skmacy * @fmr: The fast memory region to deallocate. 1829178784Skmacy */ 1830178784Skmacyint ib_dealloc_fmr(struct ib_fmr *fmr); 1831178784Skmacy 1832178784Skmacy/** 1833178784Skmacy * ib_attach_mcast - Attaches the specified QP to a multicast group. 1834178784Skmacy * @qp: QP to attach to the multicast group. The QP must be type 1835178784Skmacy * IB_QPT_UD. 1836178784Skmacy * @gid: Multicast group GID. 1837178784Skmacy * @lid: Multicast group LID in host byte order. 1838178784Skmacy * 1839178784Skmacy * In order to send and receive multicast packets, subnet 1840178784Skmacy * administration must have created the multicast group and configured 1841178784Skmacy * the fabric appropriately. The port associated with the specified 1842178784Skmacy * QP must also be a member of the multicast group. 1843178784Skmacy */ 1844178784Skmacyint ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); 1845178784Skmacy 1846178784Skmacy/** 1847178784Skmacy * ib_detach_mcast - Detaches the specified QP from a multicast group. 1848178784Skmacy * @qp: QP to detach from the multicast group. 1849178784Skmacy * @gid: Multicast group GID. 1850178784Skmacy * @lid: Multicast group LID in host byte order. 1851178784Skmacy */ 1852178784Skmacyint ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); 1853178784Skmacy 1854178784Skmacy#endif /* IB_VERBS_H */ 1855