1219820Sjeff/* 2219820Sjeff * Copyright (c) 2004 Mellanox Technologies Ltd. All rights reserved. 3219820Sjeff * Copyright (c) 2004 Infinicon Corporation. All rights reserved. 4219820Sjeff * Copyright (c) 2004 Intel Corporation. All rights reserved. 5219820Sjeff * Copyright (c) 2004 Topspin Corporation. All rights reserved. 6219820Sjeff * Copyright (c) 2004 Voltaire Corporation. All rights reserved. 7219820Sjeff * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. 8219820Sjeff * Copyright (c) 2005, 2006, 2007 Cisco Systems. All rights reserved. 9219820Sjeff * 10219820Sjeff * This software is available to you under a choice of one of two 11219820Sjeff * licenses. You may choose to be licensed under the terms of the GNU 12219820Sjeff * General Public License (GPL) Version 2, available from the file 13219820Sjeff * COPYING in the main directory of this source tree, or the 14219820Sjeff * OpenIB.org BSD license below: 15219820Sjeff * 16219820Sjeff * Redistribution and use in source and binary forms, with or 17219820Sjeff * without modification, are permitted provided that the following 18219820Sjeff * conditions are met: 19219820Sjeff * 20219820Sjeff * - Redistributions of source code must retain the above 21219820Sjeff * copyright notice, this list of conditions and the following 22219820Sjeff * disclaimer. 23219820Sjeff * 24219820Sjeff * - Redistributions in binary form must reproduce the above 25219820Sjeff * copyright notice, this list of conditions and the following 26219820Sjeff * disclaimer in the documentation and/or other materials 27219820Sjeff * provided with the distribution. 28219820Sjeff * 29219820Sjeff * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 30219820Sjeff * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 31219820Sjeff * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 32219820Sjeff * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 33219820Sjeff * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 34219820Sjeff * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 35219820Sjeff * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 36219820Sjeff * SOFTWARE. 37219820Sjeff */ 38219820Sjeff 39219820Sjeff#if !defined(IB_VERBS_H) 40219820Sjeff#define IB_VERBS_H 41219820Sjeff 42219820Sjeff#include <linux/types.h> 43219820Sjeff#include <linux/device.h> 44219820Sjeff#include <linux/mm.h> 45219820Sjeff#include <linux/dma-mapping.h> 46219820Sjeff#include <linux/kref.h> 47219820Sjeff#include <linux/list.h> 48219820Sjeff#include <linux/rwsem.h> 49219820Sjeff#include <linux/scatterlist.h> 50255932Salfred#include <linux/workqueue.h> 51219820Sjeff 52219820Sjeff#include <asm/uaccess.h> 53219820Sjeff#include <linux/rbtree.h> 54219820Sjeff#include <linux/mutex.h> 55219820Sjeff 56255932Salfredextern struct workqueue_struct *ib_wq; 57255932Salfred 58219820Sjeffunion ib_gid { 59219820Sjeff u8 raw[16]; 60219820Sjeff struct { 61219820Sjeff __be64 subnet_prefix; 62219820Sjeff __be64 interface_id; 63219820Sjeff } global; 64219820Sjeff}; 65219820Sjeff 66219820Sjeffenum rdma_node_type { 67219820Sjeff /* IB values map to NodeInfo:NodeType. */ 68219820Sjeff RDMA_NODE_IB_CA = 1, 69219820Sjeff RDMA_NODE_IB_SWITCH, 70219820Sjeff RDMA_NODE_IB_ROUTER, 71219820Sjeff RDMA_NODE_RNIC 72219820Sjeff}; 73219820Sjeff 74219820Sjeffenum rdma_transport_type { 75219820Sjeff RDMA_TRANSPORT_IB, 76219820Sjeff RDMA_TRANSPORT_IWARP 77219820Sjeff}; 78219820Sjeff 79219820Sjeffenum rdma_transport_type 80219820Sjeffrdma_node_get_transport(enum rdma_node_type node_type) __attribute_const__; 81219820Sjeff 82219820Sjeffenum rdma_link_layer { 83219820Sjeff IB_LINK_LAYER_UNSPECIFIED, 84219820Sjeff IB_LINK_LAYER_INFINIBAND, 85219820Sjeff IB_LINK_LAYER_ETHERNET, 86219820Sjeff}; 87219820Sjeff 88219820Sjeffenum ib_device_cap_flags { 89219820Sjeff IB_DEVICE_RESIZE_MAX_WR = 1, 90219820Sjeff IB_DEVICE_BAD_PKEY_CNTR = (1<<1), 91219820Sjeff IB_DEVICE_BAD_QKEY_CNTR = (1<<2), 92219820Sjeff IB_DEVICE_RAW_MULTI = (1<<3), 93219820Sjeff IB_DEVICE_AUTO_PATH_MIG = (1<<4), 94219820Sjeff IB_DEVICE_CHANGE_PHY_PORT = (1<<5), 95219820Sjeff IB_DEVICE_UD_AV_PORT_ENFORCE = (1<<6), 96219820Sjeff IB_DEVICE_CURR_QP_STATE_MOD = (1<<7), 97219820Sjeff IB_DEVICE_SHUTDOWN_PORT = (1<<8), 98219820Sjeff IB_DEVICE_INIT_TYPE = (1<<9), 99219820Sjeff IB_DEVICE_PORT_ACTIVE_EVENT = (1<<10), 100219820Sjeff IB_DEVICE_SYS_IMAGE_GUID = (1<<11), 101219820Sjeff IB_DEVICE_RC_RNR_NAK_GEN = (1<<12), 102219820Sjeff IB_DEVICE_SRQ_RESIZE = (1<<13), 103219820Sjeff IB_DEVICE_N_NOTIFY_CQ = (1<<14), 104219820Sjeff IB_DEVICE_LOCAL_DMA_LKEY = (1<<15), 105219820Sjeff IB_DEVICE_RESERVED = (1<<16), /* old SEND_W_INV */ 106219820Sjeff IB_DEVICE_MEM_WINDOW = (1<<17), 107219820Sjeff /* 108219820Sjeff * Devices should set IB_DEVICE_UD_IP_SUM if they support 109219820Sjeff * insertion of UDP and TCP checksum on outgoing UD IPoIB 110219820Sjeff * messages and can verify the validity of checksum for 111219820Sjeff * incoming messages. Setting this flag implies that the 112219820Sjeff * IPoIB driver may set NETIF_F_IP_CSUM for datagram mode. 113219820Sjeff */ 114219820Sjeff IB_DEVICE_UD_IP_CSUM = (1<<18), 115219820Sjeff IB_DEVICE_UD_TSO = (1<<19), 116219820Sjeff IB_DEVICE_XRC = (1<<20), 117219820Sjeff IB_DEVICE_MEM_MGT_EXTENSIONS = (1<<21), 118219820Sjeff IB_DEVICE_BLOCK_MULTICAST_LOOPBACK = (1<<22), 119255932Salfred IB_DEVICE_MR_ALLOCATE = (1<<23), 120255932Salfred IB_DEVICE_SHARED_MR = (1<<24), 121255932Salfred IB_DEVICE_QPG = (1<<25), 122255932Salfred IB_DEVICE_UD_RSS = (1<<26), 123255932Salfred IB_DEVICE_UD_TSS = (1<<27) 124219820Sjeff}; 125219820Sjeff 126219820Sjeffenum ib_atomic_cap { 127219820Sjeff IB_ATOMIC_NONE, 128219820Sjeff IB_ATOMIC_HCA, 129219820Sjeff IB_ATOMIC_GLOB 130219820Sjeff}; 131219820Sjeff 132219820Sjeffstruct ib_device_attr { 133219820Sjeff u64 fw_ver; 134219820Sjeff __be64 sys_image_guid; 135219820Sjeff u64 max_mr_size; 136219820Sjeff u64 page_size_cap; 137219820Sjeff u32 vendor_id; 138219820Sjeff u32 vendor_part_id; 139219820Sjeff u32 hw_ver; 140219820Sjeff int max_qp; 141219820Sjeff int max_qp_wr; 142219820Sjeff int device_cap_flags; 143219820Sjeff int max_sge; 144219820Sjeff int max_sge_rd; 145219820Sjeff int max_cq; 146219820Sjeff int max_cqe; 147219820Sjeff int max_mr; 148219820Sjeff int max_pd; 149219820Sjeff int max_qp_rd_atom; 150219820Sjeff int max_ee_rd_atom; 151219820Sjeff int max_res_rd_atom; 152219820Sjeff int max_qp_init_rd_atom; 153219820Sjeff int max_ee_init_rd_atom; 154219820Sjeff enum ib_atomic_cap atomic_cap; 155219820Sjeff enum ib_atomic_cap masked_atomic_cap; 156219820Sjeff int max_ee; 157219820Sjeff int max_rdd; 158219820Sjeff int max_mw; 159219820Sjeff int max_raw_ipv6_qp; 160219820Sjeff int max_raw_ethy_qp; 161219820Sjeff int max_mcast_grp; 162219820Sjeff int max_mcast_qp_attach; 163219820Sjeff int max_total_mcast_qp_attach; 164219820Sjeff int max_ah; 165219820Sjeff int max_fmr; 166219820Sjeff int max_map_per_fmr; 167219820Sjeff int max_srq; 168219820Sjeff int max_srq_wr; 169219820Sjeff int max_srq_sge; 170219820Sjeff unsigned int max_fast_reg_page_list_len; 171255932Salfred int max_rss_tbl_sz; 172219820Sjeff u16 max_pkeys; 173219820Sjeff u8 local_ca_ack_delay; 174219820Sjeff}; 175219820Sjeff 176219820Sjeffenum ib_mtu { 177219820Sjeff IB_MTU_256 = 1, 178219820Sjeff IB_MTU_512 = 2, 179219820Sjeff IB_MTU_1024 = 3, 180219820Sjeff IB_MTU_2048 = 4, 181219820Sjeff IB_MTU_4096 = 5 182219820Sjeff}; 183219820Sjeff 184219820Sjeffstatic inline int ib_mtu_enum_to_int(enum ib_mtu mtu) 185219820Sjeff{ 186219820Sjeff switch (mtu) { 187219820Sjeff case IB_MTU_256: return 256; 188219820Sjeff case IB_MTU_512: return 512; 189219820Sjeff case IB_MTU_1024: return 1024; 190219820Sjeff case IB_MTU_2048: return 2048; 191219820Sjeff case IB_MTU_4096: return 4096; 192219820Sjeff default: return -1; 193219820Sjeff } 194219820Sjeff} 195219820Sjeff 196219820Sjeffenum ib_port_state { 197219820Sjeff IB_PORT_NOP = 0, 198219820Sjeff IB_PORT_DOWN = 1, 199219820Sjeff IB_PORT_INIT = 2, 200219820Sjeff IB_PORT_ARMED = 3, 201219820Sjeff IB_PORT_ACTIVE = 4, 202219820Sjeff IB_PORT_ACTIVE_DEFER = 5 203219820Sjeff}; 204219820Sjeff 205219820Sjeffenum ib_port_cap_flags { 206219820Sjeff IB_PORT_SM = 1 << 1, 207219820Sjeff IB_PORT_NOTICE_SUP = 1 << 2, 208219820Sjeff IB_PORT_TRAP_SUP = 1 << 3, 209219820Sjeff IB_PORT_OPT_IPD_SUP = 1 << 4, 210219820Sjeff IB_PORT_AUTO_MIGR_SUP = 1 << 5, 211219820Sjeff IB_PORT_SL_MAP_SUP = 1 << 6, 212219820Sjeff IB_PORT_MKEY_NVRAM = 1 << 7, 213219820Sjeff IB_PORT_PKEY_NVRAM = 1 << 8, 214219820Sjeff IB_PORT_LED_INFO_SUP = 1 << 9, 215219820Sjeff IB_PORT_SM_DISABLED = 1 << 10, 216219820Sjeff IB_PORT_SYS_IMAGE_GUID_SUP = 1 << 11, 217219820Sjeff IB_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12, 218255932Salfred IB_PORT_EXTENDED_SPEEDS_SUP = 1 << 14, 219219820Sjeff IB_PORT_CM_SUP = 1 << 16, 220219820Sjeff IB_PORT_SNMP_TUNNEL_SUP = 1 << 17, 221219820Sjeff IB_PORT_REINIT_SUP = 1 << 18, 222219820Sjeff IB_PORT_DEVICE_MGMT_SUP = 1 << 19, 223219820Sjeff IB_PORT_VENDOR_CLASS_SUP = 1 << 20, 224219820Sjeff IB_PORT_DR_NOTICE_SUP = 1 << 21, 225219820Sjeff IB_PORT_CAP_MASK_NOTICE_SUP = 1 << 22, 226219820Sjeff IB_PORT_BOOT_MGMT_SUP = 1 << 23, 227219820Sjeff IB_PORT_LINK_LATENCY_SUP = 1 << 24, 228219820Sjeff IB_PORT_CLIENT_REG_SUP = 1 << 25 229219820Sjeff}; 230219820Sjeff 231219820Sjeffenum ib_port_width { 232219820Sjeff IB_WIDTH_1X = 1, 233219820Sjeff IB_WIDTH_4X = 2, 234219820Sjeff IB_WIDTH_8X = 4, 235219820Sjeff IB_WIDTH_12X = 8 236219820Sjeff}; 237219820Sjeff 238219820Sjeffstatic inline int ib_width_enum_to_int(enum ib_port_width width) 239219820Sjeff{ 240219820Sjeff switch (width) { 241219820Sjeff case IB_WIDTH_1X: return 1; 242219820Sjeff case IB_WIDTH_4X: return 4; 243219820Sjeff case IB_WIDTH_8X: return 8; 244219820Sjeff case IB_WIDTH_12X: return 12; 245219820Sjeff default: return -1; 246219820Sjeff } 247219820Sjeff} 248219820Sjeff 249255932Salfredenum ib_port_speed { 250255932Salfred IB_SPEED_SDR = 1, 251255932Salfred IB_SPEED_DDR = 2, 252255932Salfred IB_SPEED_QDR = 4, 253255932Salfred IB_SPEED_FDR10 = 8, 254255932Salfred IB_SPEED_FDR = 16, 255255932Salfred IB_SPEED_EDR = 32 256255932Salfred}; 257255932Salfred 258219820Sjeffstruct ib_protocol_stats { 259219820Sjeff /* TBD... */ 260219820Sjeff}; 261219820Sjeff 262219820Sjeffstruct iw_protocol_stats { 263219820Sjeff u64 ipInReceives; 264219820Sjeff u64 ipInHdrErrors; 265219820Sjeff u64 ipInTooBigErrors; 266219820Sjeff u64 ipInNoRoutes; 267219820Sjeff u64 ipInAddrErrors; 268219820Sjeff u64 ipInUnknownProtos; 269219820Sjeff u64 ipInTruncatedPkts; 270219820Sjeff u64 ipInDiscards; 271219820Sjeff u64 ipInDelivers; 272219820Sjeff u64 ipOutForwDatagrams; 273219820Sjeff u64 ipOutRequests; 274219820Sjeff u64 ipOutDiscards; 275219820Sjeff u64 ipOutNoRoutes; 276219820Sjeff u64 ipReasmTimeout; 277219820Sjeff u64 ipReasmReqds; 278219820Sjeff u64 ipReasmOKs; 279219820Sjeff u64 ipReasmFails; 280219820Sjeff u64 ipFragOKs; 281219820Sjeff u64 ipFragFails; 282219820Sjeff u64 ipFragCreates; 283219820Sjeff u64 ipInMcastPkts; 284219820Sjeff u64 ipOutMcastPkts; 285219820Sjeff u64 ipInBcastPkts; 286219820Sjeff u64 ipOutBcastPkts; 287219820Sjeff 288219820Sjeff u64 tcpRtoAlgorithm; 289219820Sjeff u64 tcpRtoMin; 290219820Sjeff u64 tcpRtoMax; 291219820Sjeff u64 tcpMaxConn; 292219820Sjeff u64 tcpActiveOpens; 293219820Sjeff u64 tcpPassiveOpens; 294219820Sjeff u64 tcpAttemptFails; 295219820Sjeff u64 tcpEstabResets; 296219820Sjeff u64 tcpCurrEstab; 297219820Sjeff u64 tcpInSegs; 298219820Sjeff u64 tcpOutSegs; 299219820Sjeff u64 tcpRetransSegs; 300219820Sjeff u64 tcpInErrs; 301219820Sjeff u64 tcpOutRsts; 302219820Sjeff}; 303219820Sjeff 304219820Sjeffunion rdma_protocol_stats { 305219820Sjeff struct ib_protocol_stats ib; 306219820Sjeff struct iw_protocol_stats iw; 307219820Sjeff}; 308219820Sjeff 309219820Sjeffstruct ib_port_attr { 310219820Sjeff enum ib_port_state state; 311219820Sjeff enum ib_mtu max_mtu; 312219820Sjeff enum ib_mtu active_mtu; 313219820Sjeff int gid_tbl_len; 314219820Sjeff u32 port_cap_flags; 315219820Sjeff u32 max_msg_sz; 316219820Sjeff u32 bad_pkey_cntr; 317219820Sjeff u32 qkey_viol_cntr; 318219820Sjeff u16 pkey_tbl_len; 319219820Sjeff u16 lid; 320219820Sjeff u16 sm_lid; 321219820Sjeff u8 lmc; 322219820Sjeff u8 max_vl_num; 323219820Sjeff u8 sm_sl; 324219820Sjeff u8 subnet_timeout; 325219820Sjeff u8 init_type_reply; 326219820Sjeff u8 active_width; 327219820Sjeff u8 active_speed; 328219820Sjeff u8 phys_state; 329219820Sjeff enum rdma_link_layer link_layer; 330219820Sjeff}; 331219820Sjeff 332219820Sjeffenum ib_device_modify_flags { 333219820Sjeff IB_DEVICE_MODIFY_SYS_IMAGE_GUID = 1 << 0, 334219820Sjeff IB_DEVICE_MODIFY_NODE_DESC = 1 << 1 335219820Sjeff}; 336219820Sjeff 337219820Sjeffstruct ib_device_modify { 338219820Sjeff u64 sys_image_guid; 339219820Sjeff char node_desc[64]; 340219820Sjeff}; 341219820Sjeff 342219820Sjeffenum ib_port_modify_flags { 343219820Sjeff IB_PORT_SHUTDOWN = 1, 344219820Sjeff IB_PORT_INIT_TYPE = (1<<2), 345219820Sjeff IB_PORT_RESET_QKEY_CNTR = (1<<3) 346219820Sjeff}; 347219820Sjeff 348219820Sjeffstruct ib_port_modify { 349219820Sjeff u32 set_port_cap_mask; 350219820Sjeff u32 clr_port_cap_mask; 351219820Sjeff u8 init_type; 352219820Sjeff}; 353219820Sjeff 354219820Sjeffenum ib_event_type { 355219820Sjeff IB_EVENT_CQ_ERR, 356219820Sjeff IB_EVENT_QP_FATAL, 357219820Sjeff IB_EVENT_QP_REQ_ERR, 358219820Sjeff IB_EVENT_QP_ACCESS_ERR, 359219820Sjeff IB_EVENT_COMM_EST, 360219820Sjeff IB_EVENT_SQ_DRAINED, 361219820Sjeff IB_EVENT_PATH_MIG, 362219820Sjeff IB_EVENT_PATH_MIG_ERR, 363219820Sjeff IB_EVENT_DEVICE_FATAL, 364219820Sjeff IB_EVENT_PORT_ACTIVE, 365219820Sjeff IB_EVENT_PORT_ERR, 366219820Sjeff IB_EVENT_LID_CHANGE, 367219820Sjeff IB_EVENT_PKEY_CHANGE, 368219820Sjeff IB_EVENT_SM_CHANGE, 369219820Sjeff IB_EVENT_SRQ_ERR, 370219820Sjeff IB_EVENT_SRQ_LIMIT_REACHED, 371219820Sjeff IB_EVENT_QP_LAST_WQE_REACHED, 372219820Sjeff IB_EVENT_CLIENT_REREGISTER, 373219820Sjeff IB_EVENT_GID_CHANGE, 374219820Sjeff}; 375219820Sjeff 376219820Sjeffenum ib_event_flags { 377219820Sjeff IB_XRC_QP_EVENT_FLAG = 0x80000000, 378219820Sjeff}; 379219820Sjeff 380219820Sjeffstruct ib_event { 381219820Sjeff struct ib_device *device; 382219820Sjeff union { 383219820Sjeff struct ib_cq *cq; 384219820Sjeff struct ib_qp *qp; 385219820Sjeff struct ib_srq *srq; 386219820Sjeff u8 port_num; 387219820Sjeff u32 xrc_qp_num; 388219820Sjeff } element; 389219820Sjeff enum ib_event_type event; 390219820Sjeff}; 391219820Sjeff 392219820Sjeffstruct ib_event_handler { 393219820Sjeff struct ib_device *device; 394219820Sjeff void (*handler)(struct ib_event_handler *, struct ib_event *); 395219820Sjeff struct list_head list; 396219820Sjeff}; 397219820Sjeff 398219820Sjeff#define INIT_IB_EVENT_HANDLER(_ptr, _device, _handler) \ 399219820Sjeff do { \ 400219820Sjeff (_ptr)->device = _device; \ 401219820Sjeff (_ptr)->handler = _handler; \ 402219820Sjeff INIT_LIST_HEAD(&(_ptr)->list); \ 403219820Sjeff } while (0) 404219820Sjeff 405219820Sjeffstruct ib_global_route { 406219820Sjeff union ib_gid dgid; 407219820Sjeff u32 flow_label; 408219820Sjeff u8 sgid_index; 409219820Sjeff u8 hop_limit; 410219820Sjeff u8 traffic_class; 411219820Sjeff}; 412219820Sjeff 413219820Sjeffstruct ib_grh { 414219820Sjeff __be32 version_tclass_flow; 415219820Sjeff __be16 paylen; 416219820Sjeff u8 next_hdr; 417219820Sjeff u8 hop_limit; 418219820Sjeff union ib_gid sgid; 419219820Sjeff union ib_gid dgid; 420219820Sjeff}; 421219820Sjeff 422219820Sjeffenum { 423219820Sjeff IB_MULTICAST_QPN = 0xffffff 424219820Sjeff}; 425219820Sjeff 426219820Sjeff#define IB_LID_PERMISSIVE cpu_to_be16(0xFFFF) 427219820Sjeff 428219820Sjeffenum ib_ah_flags { 429219820Sjeff IB_AH_GRH = 1 430219820Sjeff}; 431219820Sjeff 432219820Sjeffenum ib_rate { 433219820Sjeff IB_RATE_PORT_CURRENT = 0, 434219820Sjeff IB_RATE_2_5_GBPS = 2, 435219820Sjeff IB_RATE_5_GBPS = 5, 436219820Sjeff IB_RATE_10_GBPS = 3, 437219820Sjeff IB_RATE_20_GBPS = 6, 438219820Sjeff IB_RATE_30_GBPS = 4, 439219820Sjeff IB_RATE_40_GBPS = 7, 440219820Sjeff IB_RATE_60_GBPS = 8, 441219820Sjeff IB_RATE_80_GBPS = 9, 442255932Salfred IB_RATE_120_GBPS = 10, 443255932Salfred IB_RATE_14_GBPS = 11, 444255932Salfred IB_RATE_56_GBPS = 12, 445255932Salfred IB_RATE_112_GBPS = 13, 446255932Salfred IB_RATE_168_GBPS = 14, 447255932Salfred IB_RATE_25_GBPS = 15, 448255932Salfred IB_RATE_100_GBPS = 16, 449255932Salfred IB_RATE_200_GBPS = 17, 450255932Salfred IB_RATE_300_GBPS = 18 451219820Sjeff}; 452219820Sjeff 453219820Sjeff/** 454219820Sjeff * ib_rate_to_mult - Convert the IB rate enum to a multiple of the 455219820Sjeff * base rate of 2.5 Gbit/sec. For example, IB_RATE_5_GBPS will be 456219820Sjeff * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec. 457219820Sjeff * @rate: rate to convert. 458219820Sjeff */ 459219820Sjeffint ib_rate_to_mult(enum ib_rate rate) __attribute_const__; 460219820Sjeff 461219820Sjeff/** 462255932Salfred * ib_rate_to_mbps - Convert the IB rate enum to Mbps. 463255932Salfred * For example, IB_RATE_2_5_GBPS will be converted to 2500. 464255932Salfred * @rate: rate to convert. 465255932Salfred */ 466255932Salfredint ib_rate_to_mbps(enum ib_rate rate) __attribute_const__; 467255932Salfred 468255932Salfred/** 469219820Sjeff * mult_to_ib_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate 470219820Sjeff * enum. 471219820Sjeff * @mult: multiple to convert. 472219820Sjeff */ 473219820Sjeffenum ib_rate mult_to_ib_rate(int mult) __attribute_const__; 474219820Sjeff 475219820Sjeffstruct ib_ah_attr { 476219820Sjeff struct ib_global_route grh; 477219820Sjeff u16 dlid; 478219820Sjeff u8 sl; 479219820Sjeff u8 src_path_bits; 480219820Sjeff u8 static_rate; 481219820Sjeff u8 ah_flags; 482219820Sjeff u8 port_num; 483219820Sjeff}; 484219820Sjeff 485219820Sjeffenum ib_wc_status { 486219820Sjeff IB_WC_SUCCESS, 487219820Sjeff IB_WC_LOC_LEN_ERR, 488219820Sjeff IB_WC_LOC_QP_OP_ERR, 489219820Sjeff IB_WC_LOC_EEC_OP_ERR, 490219820Sjeff IB_WC_LOC_PROT_ERR, 491219820Sjeff IB_WC_WR_FLUSH_ERR, 492219820Sjeff IB_WC_MW_BIND_ERR, 493219820Sjeff IB_WC_BAD_RESP_ERR, 494219820Sjeff IB_WC_LOC_ACCESS_ERR, 495219820Sjeff IB_WC_REM_INV_REQ_ERR, 496219820Sjeff IB_WC_REM_ACCESS_ERR, 497219820Sjeff IB_WC_REM_OP_ERR, 498219820Sjeff IB_WC_RETRY_EXC_ERR, 499219820Sjeff IB_WC_RNR_RETRY_EXC_ERR, 500219820Sjeff IB_WC_LOC_RDD_VIOL_ERR, 501219820Sjeff IB_WC_REM_INV_RD_REQ_ERR, 502219820Sjeff IB_WC_REM_ABORT_ERR, 503219820Sjeff IB_WC_INV_EECN_ERR, 504219820Sjeff IB_WC_INV_EEC_STATE_ERR, 505219820Sjeff IB_WC_FATAL_ERR, 506219820Sjeff IB_WC_RESP_TIMEOUT_ERR, 507219820Sjeff IB_WC_GENERAL_ERR 508219820Sjeff}; 509219820Sjeff 510219820Sjeffenum ib_wc_opcode { 511219820Sjeff IB_WC_SEND, 512219820Sjeff IB_WC_RDMA_WRITE, 513219820Sjeff IB_WC_RDMA_READ, 514219820Sjeff IB_WC_COMP_SWAP, 515219820Sjeff IB_WC_FETCH_ADD, 516219820Sjeff IB_WC_BIND_MW, 517219820Sjeff IB_WC_LSO, 518219820Sjeff IB_WC_LOCAL_INV, 519219820Sjeff IB_WC_FAST_REG_MR, 520219820Sjeff IB_WC_MASKED_COMP_SWAP, 521219820Sjeff IB_WC_MASKED_FETCH_ADD, 522219820Sjeff/* 523219820Sjeff * Set value of IB_WC_RECV so consumers can test if a completion is a 524219820Sjeff * receive by testing (opcode & IB_WC_RECV). 525219820Sjeff */ 526219820Sjeff IB_WC_RECV = 1 << 7, 527219820Sjeff IB_WC_RECV_RDMA_WITH_IMM 528219820Sjeff}; 529219820Sjeff 530219820Sjeffenum ib_wc_flags { 531219820Sjeff IB_WC_GRH = 1, 532219820Sjeff IB_WC_WITH_IMM = (1<<1), 533219820Sjeff IB_WC_WITH_INVALIDATE = (1<<2), 534255932Salfred IB_WC_IP_CSUM_OK = (1<<3), 535219820Sjeff}; 536219820Sjeff 537219820Sjeffstruct ib_wc { 538219820Sjeff u64 wr_id; 539219820Sjeff enum ib_wc_status status; 540219820Sjeff enum ib_wc_opcode opcode; 541219820Sjeff u32 vendor_err; 542219820Sjeff u32 byte_len; 543219820Sjeff struct ib_qp *qp; 544219820Sjeff union { 545219820Sjeff __be32 imm_data; 546219820Sjeff u32 invalidate_rkey; 547219820Sjeff } ex; 548219820Sjeff u32 src_qp; 549219820Sjeff int wc_flags; 550219820Sjeff u16 pkey_index; 551219820Sjeff u16 slid; 552219820Sjeff u8 sl; 553219820Sjeff u8 dlid_path_bits; 554219820Sjeff u8 port_num; /* valid only for DR SMPs on switches */ 555219820Sjeff int csum_ok; 556219820Sjeff}; 557219820Sjeff 558219820Sjeffenum ib_cq_notify_flags { 559219820Sjeff IB_CQ_SOLICITED = 1 << 0, 560219820Sjeff IB_CQ_NEXT_COMP = 1 << 1, 561219820Sjeff IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP, 562219820Sjeff IB_CQ_REPORT_MISSED_EVENTS = 1 << 2, 563219820Sjeff}; 564219820Sjeff 565255932Salfredenum ib_srq_type { 566255932Salfred IB_SRQT_BASIC, 567255932Salfred IB_SRQT_XRC 568255932Salfred}; 569255932Salfred 570219820Sjeffenum ib_srq_attr_mask { 571219820Sjeff IB_SRQ_MAX_WR = 1 << 0, 572219820Sjeff IB_SRQ_LIMIT = 1 << 1, 573219820Sjeff}; 574219820Sjeff 575219820Sjeffstruct ib_srq_attr { 576219820Sjeff u32 max_wr; 577219820Sjeff u32 max_sge; 578219820Sjeff u32 srq_limit; 579219820Sjeff}; 580219820Sjeff 581219820Sjeffstruct ib_srq_init_attr { 582219820Sjeff void (*event_handler)(struct ib_event *, void *); 583219820Sjeff void *srq_context; 584219820Sjeff struct ib_srq_attr attr; 585255932Salfred enum ib_srq_type srq_type; 586255932Salfred 587255932Salfred union { 588255932Salfred struct { 589255932Salfred struct ib_xrcd *xrcd; 590255932Salfred struct ib_cq *cq; 591255932Salfred } xrc; 592255932Salfred } ext; 593219820Sjeff}; 594219820Sjeff 595219820Sjeffstruct ib_qp_cap { 596219820Sjeff u32 max_send_wr; 597219820Sjeff u32 max_recv_wr; 598219820Sjeff u32 max_send_sge; 599219820Sjeff u32 max_recv_sge; 600219820Sjeff u32 max_inline_data; 601255932Salfred u32 qpg_tss_mask_sz; 602219820Sjeff}; 603219820Sjeff 604219820Sjeffenum ib_sig_type { 605219820Sjeff IB_SIGNAL_ALL_WR, 606219820Sjeff IB_SIGNAL_REQ_WR 607219820Sjeff}; 608219820Sjeff 609219820Sjeffenum ib_qp_type { 610219820Sjeff /* 611219820Sjeff * IB_QPT_SMI and IB_QPT_GSI have to be the first two entries 612219820Sjeff * here (and in that order) since the MAD layer uses them as 613219820Sjeff * indices into a 2-entry table. 614219820Sjeff */ 615219820Sjeff IB_QPT_SMI, 616219820Sjeff IB_QPT_GSI, 617219820Sjeff 618219820Sjeff IB_QPT_RC, 619219820Sjeff IB_QPT_UC, 620219820Sjeff IB_QPT_UD, 621219820Sjeff IB_QPT_XRC, 622219820Sjeff IB_QPT_RAW_IPV6, 623255932Salfred IB_QPT_RAW_ETHERTYPE, 624255932Salfred IB_QPT_RAW_PACKET = 8, 625255932Salfred IB_QPT_XRC_INI = 9, 626255932Salfred IB_QPT_XRC_TGT, 627255932Salfred IB_QPT_MAX, 628219820Sjeff}; 629219820Sjeff 630219820Sjeffenum ib_qp_create_flags { 631219820Sjeff IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0, 632219820Sjeff IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK = 1 << 1, 633255932Salfred IB_QP_CREATE_NETIF_QP = 1 << 2, 634255932Salfred /* reserve bits 26-31 for low level drivers' internal use */ 635255932Salfred IB_QP_CREATE_RESERVED_START = 1 << 26, 636255932Salfred IB_QP_CREATE_RESERVED_END = 1 << 31, 637219820Sjeff}; 638219820Sjeff 639255932Salfredenum ib_qpg_type { 640255932Salfred IB_QPG_NONE = 0, 641255932Salfred IB_QPG_PARENT = (1<<0), 642255932Salfred IB_QPG_CHILD_RX = (1<<1), 643255932Salfred IB_QPG_CHILD_TX = (1<<2) 644255932Salfred}; 645255932Salfred 646255932Salfredstruct ib_qpg_init_attrib { 647255932Salfred u32 tss_child_count; 648255932Salfred u32 rss_child_count; 649255932Salfred}; 650255932Salfred 651219820Sjeffstruct ib_qp_init_attr { 652219820Sjeff void (*event_handler)(struct ib_event *, void *); 653219820Sjeff void *qp_context; 654219820Sjeff struct ib_cq *send_cq; 655219820Sjeff struct ib_cq *recv_cq; 656219820Sjeff struct ib_srq *srq; 657255932Salfred struct ib_xrcd *xrcd; /* XRC TGT QPs only */ 658219820Sjeff struct ib_qp_cap cap; 659255932Salfred union { 660255932Salfred struct ib_qp *qpg_parent; /* see qpg_type */ 661255932Salfred struct ib_qpg_init_attrib parent_attrib; 662256116Sdim } pp; 663219820Sjeff enum ib_sig_type sq_sig_type; 664219820Sjeff enum ib_qp_type qp_type; 665219820Sjeff enum ib_qp_create_flags create_flags; 666255932Salfred enum ib_qpg_type qpg_type; 667219820Sjeff u8 port_num; /* special QP types only */ 668219820Sjeff}; 669219820Sjeff 670255932Salfredstruct ib_qp_open_attr { 671255932Salfred void (*event_handler)(struct ib_event *, void *); 672255932Salfred void *qp_context; 673255932Salfred u32 qp_num; 674255932Salfred enum ib_qp_type qp_type; 675255932Salfred}; 676255932Salfred 677219820Sjeffenum ib_rnr_timeout { 678219820Sjeff IB_RNR_TIMER_655_36 = 0, 679219820Sjeff IB_RNR_TIMER_000_01 = 1, 680219820Sjeff IB_RNR_TIMER_000_02 = 2, 681219820Sjeff IB_RNR_TIMER_000_03 = 3, 682219820Sjeff IB_RNR_TIMER_000_04 = 4, 683219820Sjeff IB_RNR_TIMER_000_06 = 5, 684219820Sjeff IB_RNR_TIMER_000_08 = 6, 685219820Sjeff IB_RNR_TIMER_000_12 = 7, 686219820Sjeff IB_RNR_TIMER_000_16 = 8, 687219820Sjeff IB_RNR_TIMER_000_24 = 9, 688219820Sjeff IB_RNR_TIMER_000_32 = 10, 689219820Sjeff IB_RNR_TIMER_000_48 = 11, 690219820Sjeff IB_RNR_TIMER_000_64 = 12, 691219820Sjeff IB_RNR_TIMER_000_96 = 13, 692219820Sjeff IB_RNR_TIMER_001_28 = 14, 693219820Sjeff IB_RNR_TIMER_001_92 = 15, 694219820Sjeff IB_RNR_TIMER_002_56 = 16, 695219820Sjeff IB_RNR_TIMER_003_84 = 17, 696219820Sjeff IB_RNR_TIMER_005_12 = 18, 697219820Sjeff IB_RNR_TIMER_007_68 = 19, 698219820Sjeff IB_RNR_TIMER_010_24 = 20, 699219820Sjeff IB_RNR_TIMER_015_36 = 21, 700219820Sjeff IB_RNR_TIMER_020_48 = 22, 701219820Sjeff IB_RNR_TIMER_030_72 = 23, 702219820Sjeff IB_RNR_TIMER_040_96 = 24, 703219820Sjeff IB_RNR_TIMER_061_44 = 25, 704219820Sjeff IB_RNR_TIMER_081_92 = 26, 705219820Sjeff IB_RNR_TIMER_122_88 = 27, 706219820Sjeff IB_RNR_TIMER_163_84 = 28, 707219820Sjeff IB_RNR_TIMER_245_76 = 29, 708219820Sjeff IB_RNR_TIMER_327_68 = 30, 709219820Sjeff IB_RNR_TIMER_491_52 = 31 710219820Sjeff}; 711219820Sjeff 712219820Sjeffenum ib_qp_attr_mask { 713219820Sjeff IB_QP_STATE = 1, 714219820Sjeff IB_QP_CUR_STATE = (1<<1), 715219820Sjeff IB_QP_EN_SQD_ASYNC_NOTIFY = (1<<2), 716219820Sjeff IB_QP_ACCESS_FLAGS = (1<<3), 717219820Sjeff IB_QP_PKEY_INDEX = (1<<4), 718219820Sjeff IB_QP_PORT = (1<<5), 719219820Sjeff IB_QP_QKEY = (1<<6), 720219820Sjeff IB_QP_AV = (1<<7), 721219820Sjeff IB_QP_PATH_MTU = (1<<8), 722219820Sjeff IB_QP_TIMEOUT = (1<<9), 723219820Sjeff IB_QP_RETRY_CNT = (1<<10), 724219820Sjeff IB_QP_RNR_RETRY = (1<<11), 725219820Sjeff IB_QP_RQ_PSN = (1<<12), 726219820Sjeff IB_QP_MAX_QP_RD_ATOMIC = (1<<13), 727219820Sjeff IB_QP_ALT_PATH = (1<<14), 728219820Sjeff IB_QP_MIN_RNR_TIMER = (1<<15), 729219820Sjeff IB_QP_SQ_PSN = (1<<16), 730219820Sjeff IB_QP_MAX_DEST_RD_ATOMIC = (1<<17), 731219820Sjeff IB_QP_PATH_MIG_STATE = (1<<18), 732219820Sjeff IB_QP_CAP = (1<<19), 733255932Salfred IB_QP_DEST_QPN = (1<<20), 734255932Salfred IB_QP_GROUP_RSS = (1<<21) 735219820Sjeff}; 736219820Sjeff 737219820Sjeffenum ib_qp_state { 738219820Sjeff IB_QPS_RESET, 739219820Sjeff IB_QPS_INIT, 740219820Sjeff IB_QPS_RTR, 741219820Sjeff IB_QPS_RTS, 742219820Sjeff IB_QPS_SQD, 743219820Sjeff IB_QPS_SQE, 744219820Sjeff IB_QPS_ERR 745219820Sjeff}; 746219820Sjeff 747219820Sjeffenum ib_mig_state { 748219820Sjeff IB_MIG_MIGRATED, 749219820Sjeff IB_MIG_REARM, 750219820Sjeff IB_MIG_ARMED 751219820Sjeff}; 752219820Sjeff 753219820Sjeffstruct ib_qp_attr { 754219820Sjeff enum ib_qp_state qp_state; 755219820Sjeff enum ib_qp_state cur_qp_state; 756219820Sjeff enum ib_mtu path_mtu; 757219820Sjeff enum ib_mig_state path_mig_state; 758219820Sjeff u32 qkey; 759219820Sjeff u32 rq_psn; 760219820Sjeff u32 sq_psn; 761219820Sjeff u32 dest_qp_num; 762219820Sjeff int qp_access_flags; 763219820Sjeff struct ib_qp_cap cap; 764219820Sjeff struct ib_ah_attr ah_attr; 765219820Sjeff struct ib_ah_attr alt_ah_attr; 766219820Sjeff u16 pkey_index; 767219820Sjeff u16 alt_pkey_index; 768219820Sjeff u8 en_sqd_async_notify; 769219820Sjeff u8 sq_draining; 770219820Sjeff u8 max_rd_atomic; 771219820Sjeff u8 max_dest_rd_atomic; 772219820Sjeff u8 min_rnr_timer; 773219820Sjeff u8 port_num; 774219820Sjeff u8 timeout; 775219820Sjeff u8 retry_cnt; 776219820Sjeff u8 rnr_retry; 777219820Sjeff u8 alt_port_num; 778219820Sjeff u8 alt_timeout; 779219820Sjeff}; 780219820Sjeff 781219820Sjeffenum ib_wr_opcode { 782219820Sjeff IB_WR_RDMA_WRITE, 783219820Sjeff IB_WR_RDMA_WRITE_WITH_IMM, 784219820Sjeff IB_WR_SEND, 785219820Sjeff IB_WR_SEND_WITH_IMM, 786219820Sjeff IB_WR_RDMA_READ, 787219820Sjeff IB_WR_ATOMIC_CMP_AND_SWP, 788219820Sjeff IB_WR_ATOMIC_FETCH_AND_ADD, 789219820Sjeff IB_WR_LSO, 790219820Sjeff IB_WR_BIG_LSO, 791219820Sjeff IB_WR_SEND_WITH_INV, 792219820Sjeff IB_WR_RDMA_READ_WITH_INV, 793219820Sjeff IB_WR_LOCAL_INV, 794219820Sjeff IB_WR_FAST_REG_MR, 795219820Sjeff IB_WR_MASKED_ATOMIC_CMP_AND_SWP, 796219820Sjeff IB_WR_MASKED_ATOMIC_FETCH_AND_ADD, 797219820Sjeff}; 798219820Sjeff 799219820Sjeffenum ib_send_flags { 800219820Sjeff IB_SEND_FENCE = 1, 801219820Sjeff IB_SEND_SIGNALED = (1<<1), 802219820Sjeff IB_SEND_SOLICITED = (1<<2), 803219820Sjeff IB_SEND_INLINE = (1<<3), 804219820Sjeff IB_SEND_IP_CSUM = (1<<4) 805219820Sjeff}; 806219820Sjeff 807255932Salfredenum ib_flow_types { 808255932Salfred IB_FLOW_ETH = 0, 809255932Salfred IB_FLOW_IB_UC = 1, 810255932Salfred IB_FLOW_IB_MC_IPV4 = 2, 811255932Salfred IB_FLOW_IB_MC_IPV6 = 3 812255932Salfred}; 813255932Salfred 814255932Salfredenum { 815255932Salfred IB_FLOW_L4_NONE = 0, 816255932Salfred IB_FLOW_L4_OTHER = 3, 817255932Salfred IB_FLOW_L4_UDP = 5, 818255932Salfred IB_FLOW_L4_TCP = 6 819255932Salfred}; 820255932Salfred 821219820Sjeffstruct ib_sge { 822219820Sjeff u64 addr; 823219820Sjeff u32 length; 824219820Sjeff u32 lkey; 825219820Sjeff}; 826219820Sjeff 827219820Sjeffstruct ib_fast_reg_page_list { 828219820Sjeff struct ib_device *device; 829219820Sjeff u64 *page_list; 830219820Sjeff unsigned int max_page_list_len; 831219820Sjeff}; 832219820Sjeff 833219820Sjeffstruct ib_send_wr { 834219820Sjeff struct ib_send_wr *next; 835219820Sjeff u64 wr_id; 836219820Sjeff struct ib_sge *sg_list; 837219820Sjeff int num_sge; 838219820Sjeff enum ib_wr_opcode opcode; 839219820Sjeff int send_flags; 840219820Sjeff union { 841219820Sjeff __be32 imm_data; 842219820Sjeff u32 invalidate_rkey; 843219820Sjeff } ex; 844219820Sjeff union { 845219820Sjeff struct { 846219820Sjeff u64 remote_addr; 847219820Sjeff u32 rkey; 848219820Sjeff } rdma; 849219820Sjeff struct { 850219820Sjeff u64 remote_addr; 851219820Sjeff u64 compare_add; 852219820Sjeff u64 swap; 853219820Sjeff u64 compare_add_mask; 854219820Sjeff u64 swap_mask; 855219820Sjeff u32 rkey; 856219820Sjeff } atomic; 857219820Sjeff struct { 858219820Sjeff struct ib_ah *ah; 859219820Sjeff void *header; 860219820Sjeff int hlen; 861219820Sjeff int mss; 862219820Sjeff u32 remote_qpn; 863219820Sjeff u32 remote_qkey; 864219820Sjeff u16 pkey_index; /* valid for GSI only */ 865219820Sjeff u8 port_num; /* valid for DR SMPs on switch only */ 866219820Sjeff } ud; 867219820Sjeff struct { 868219820Sjeff u64 iova_start; 869219820Sjeff struct ib_fast_reg_page_list *page_list; 870219820Sjeff unsigned int page_shift; 871219820Sjeff unsigned int page_list_len; 872219820Sjeff u32 length; 873219820Sjeff int access_flags; 874219820Sjeff u32 rkey; 875219820Sjeff } fast_reg; 876219820Sjeff struct { 877219820Sjeff struct ib_unpacked_lrh *lrh; 878219820Sjeff u32 eth_type; 879219820Sjeff u8 static_rate; 880219820Sjeff } raw_ety; 881219820Sjeff } wr; 882255932Salfred u32 xrc_remote_srq_num; /* XRC TGT QPs only */ 883219820Sjeff}; 884219820Sjeff 885219820Sjeffstruct ib_recv_wr { 886219820Sjeff struct ib_recv_wr *next; 887219820Sjeff u64 wr_id; 888219820Sjeff struct ib_sge *sg_list; 889219820Sjeff int num_sge; 890219820Sjeff}; 891219820Sjeff 892219820Sjeffenum ib_access_flags { 893219820Sjeff IB_ACCESS_LOCAL_WRITE = 1, 894219820Sjeff IB_ACCESS_REMOTE_WRITE = (1<<1), 895219820Sjeff IB_ACCESS_REMOTE_READ = (1<<2), 896219820Sjeff IB_ACCESS_REMOTE_ATOMIC = (1<<3), 897255932Salfred IB_ACCESS_MW_BIND = (1<<4), 898255932Salfred IB_ACCESS_ALLOCATE_MR = (1<<5), 899255932Salfred IB_ACCESS_SHARED_MR_USER_READ = (1<<6), 900255932Salfred IB_ACCESS_SHARED_MR_USER_WRITE = (1<<7), 901255932Salfred IB_ACCESS_SHARED_MR_GROUP_READ = (1<<8), 902255932Salfred IB_ACCESS_SHARED_MR_GROUP_WRITE = (1<<9), 903255932Salfred IB_ACCESS_SHARED_MR_OTHER_READ = (1<<10), 904255932Salfred IB_ACCESS_SHARED_MR_OTHER_WRITE = (1<<11) 905255932Salfred 906219820Sjeff}; 907219820Sjeff 908219820Sjeffstruct ib_phys_buf { 909219820Sjeff u64 addr; 910219820Sjeff u64 size; 911219820Sjeff}; 912219820Sjeff 913219820Sjeffstruct ib_mr_attr { 914219820Sjeff struct ib_pd *pd; 915219820Sjeff u64 device_virt_addr; 916219820Sjeff u64 size; 917219820Sjeff int mr_access_flags; 918219820Sjeff u32 lkey; 919219820Sjeff u32 rkey; 920219820Sjeff}; 921219820Sjeff 922219820Sjeffenum ib_mr_rereg_flags { 923219820Sjeff IB_MR_REREG_TRANS = 1, 924219820Sjeff IB_MR_REREG_PD = (1<<1), 925219820Sjeff IB_MR_REREG_ACCESS = (1<<2) 926219820Sjeff}; 927219820Sjeff 928219820Sjeffstruct ib_mw_bind { 929219820Sjeff struct ib_mr *mr; 930219820Sjeff u64 wr_id; 931219820Sjeff u64 addr; 932219820Sjeff u32 length; 933219820Sjeff int send_flags; 934219820Sjeff int mw_access_flags; 935219820Sjeff}; 936219820Sjeff 937219820Sjeffstruct ib_fmr_attr { 938219820Sjeff int max_pages; 939219820Sjeff int max_maps; 940219820Sjeff u8 page_shift; 941219820Sjeff}; 942219820Sjeff 943219820Sjeffstruct ib_ucontext { 944219820Sjeff struct ib_device *device; 945219820Sjeff struct list_head pd_list; 946219820Sjeff struct list_head mr_list; 947219820Sjeff struct list_head mw_list; 948219820Sjeff struct list_head cq_list; 949219820Sjeff struct list_head qp_list; 950219820Sjeff struct list_head srq_list; 951219820Sjeff struct list_head ah_list; 952255932Salfred struct list_head xrcd_list; 953219820Sjeff int closing; 954219820Sjeff}; 955219820Sjeff 956219820Sjeffstruct ib_uobject { 957219820Sjeff u64 user_handle; /* handle given to us by userspace */ 958219820Sjeff struct ib_ucontext *context; /* associated user context */ 959219820Sjeff void *object; /* containing object */ 960219820Sjeff struct list_head list; /* link to context's list */ 961219820Sjeff int id; /* index into kernel idr */ 962219820Sjeff struct kref ref; 963219820Sjeff struct rw_semaphore mutex; /* protects .live */ 964219820Sjeff int live; 965219820Sjeff}; 966219820Sjeff 967219820Sjeffstruct ib_udata { 968219820Sjeff void __user *inbuf; 969219820Sjeff void __user *outbuf; 970219820Sjeff size_t inlen; 971219820Sjeff size_t outlen; 972219820Sjeff}; 973219820Sjeff 974219820Sjeffstruct ib_uxrc_rcv_object { 975219820Sjeff struct list_head list; /* link to context's list */ 976219820Sjeff u32 qp_num; 977219820Sjeff u32 domain_handle; 978219820Sjeff}; 979219820Sjeff 980219820Sjeffstruct ib_pd { 981219820Sjeff struct ib_device *device; 982219820Sjeff struct ib_uobject *uobject; 983219820Sjeff atomic_t usecnt; /* count all resources */ 984219820Sjeff}; 985219820Sjeff 986219820Sjeffstruct ib_xrcd { 987219820Sjeff struct ib_device *device; 988219820Sjeff struct ib_uobject *uobject; 989255932Salfred atomic_t usecnt; /* count all exposed resources */ 990219820Sjeff struct inode *inode; 991219820Sjeff struct rb_node node; 992255932Salfred 993255932Salfred struct mutex tgt_qp_mutex; 994255932Salfred struct list_head tgt_qp_list; 995219820Sjeff}; 996219820Sjeff 997219820Sjeffstruct ib_ah { 998219820Sjeff struct ib_device *device; 999219820Sjeff struct ib_pd *pd; 1000219820Sjeff struct ib_uobject *uobject; 1001219820Sjeff}; 1002219820Sjeff 1003219820Sjefftypedef void (*ib_comp_handler)(struct ib_cq *cq, void *cq_context); 1004219820Sjeff 1005219820Sjeffstruct ib_cq { 1006219820Sjeff struct ib_device *device; 1007219820Sjeff struct ib_uobject *uobject; 1008219820Sjeff ib_comp_handler comp_handler; 1009219820Sjeff void (*event_handler)(struct ib_event *, void *); 1010219820Sjeff void *cq_context; 1011219820Sjeff int cqe; 1012219820Sjeff atomic_t usecnt; /* count number of work queues */ 1013219820Sjeff}; 1014219820Sjeff 1015219820Sjeffstruct ib_srq { 1016219820Sjeff struct ib_device *device; 1017219820Sjeff struct ib_pd *pd; 1018219820Sjeff struct ib_uobject *uobject; 1019219820Sjeff void (*event_handler)(struct ib_event *, void *); 1020219820Sjeff void *srq_context; 1021255932Salfred enum ib_srq_type srq_type; 1022219820Sjeff atomic_t usecnt; 1023255932Salfred 1024255932Salfred union { 1025255932Salfred struct { 1026255932Salfred struct ib_xrcd *xrcd; 1027255932Salfred struct ib_cq *cq; 1028255932Salfred u32 srq_num; 1029255932Salfred } xrc; 1030255932Salfred } ext; 1031219820Sjeff}; 1032219820Sjeff 1033219820Sjeffstruct ib_qp { 1034219820Sjeff struct ib_device *device; 1035219820Sjeff struct ib_pd *pd; 1036219820Sjeff struct ib_cq *send_cq; 1037219820Sjeff struct ib_cq *recv_cq; 1038219820Sjeff struct ib_srq *srq; 1039255932Salfred struct ib_xrcd *xrcd; /* XRC TGT QPs only */ 1040255932Salfred struct list_head xrcd_list; 1041255932Salfred atomic_t usecnt; /* count times opened, mcast attaches */ 1042255932Salfred struct list_head open_list; 1043255932Salfred struct ib_qp *real_qp; 1044219820Sjeff struct ib_uobject *uobject; 1045219820Sjeff void (*event_handler)(struct ib_event *, void *); 1046219820Sjeff void *qp_context; 1047219820Sjeff u32 qp_num; 1048219820Sjeff enum ib_qp_type qp_type; 1049255932Salfred enum ib_qpg_type qpg_type; 1050219820Sjeff}; 1051219820Sjeff 1052219820Sjeffstruct ib_mr { 1053219820Sjeff struct ib_device *device; 1054219820Sjeff struct ib_pd *pd; 1055219820Sjeff struct ib_uobject *uobject; 1056219820Sjeff u32 lkey; 1057219820Sjeff u32 rkey; 1058219820Sjeff atomic_t usecnt; /* count number of MWs */ 1059219820Sjeff}; 1060219820Sjeff 1061219820Sjeffstruct ib_mw { 1062219820Sjeff struct ib_device *device; 1063219820Sjeff struct ib_pd *pd; 1064219820Sjeff struct ib_uobject *uobject; 1065219820Sjeff u32 rkey; 1066219820Sjeff}; 1067219820Sjeff 1068219820Sjeffstruct ib_fmr { 1069219820Sjeff struct ib_device *device; 1070219820Sjeff struct ib_pd *pd; 1071219820Sjeff struct list_head list; 1072219820Sjeff u32 lkey; 1073219820Sjeff u32 rkey; 1074219820Sjeff}; 1075219820Sjeff 1076255932Salfredstruct ib_flow_spec { 1077255932Salfred enum ib_flow_types type; 1078255932Salfred union { 1079255932Salfred struct { 1080255932Salfred __be16 ethertype; 1081255932Salfred __be16 vlan; 1082255932Salfred u8 vlan_present; 1083255932Salfred u8 mac[6]; 1084255932Salfred u8 port; 1085255932Salfred } eth; 1086255932Salfred struct { 1087255932Salfred __be32 qpn; 1088255932Salfred } ib_uc; 1089255932Salfred struct { 1090255932Salfred u8 mgid[16]; 1091255932Salfred } ib_mc; 1092255932Salfred } l2_id; 1093255932Salfred __be32 src_ip; 1094255932Salfred __be32 dst_ip; 1095255932Salfred __be16 src_port; 1096255932Salfred __be16 dst_port; 1097255932Salfred u8 l4_protocol; 1098255932Salfred u8 block_mc_loopback; 1099255932Salfred u8 rule_type; 1100255932Salfred}; 1101255932Salfred 1102219820Sjeffstruct ib_mad; 1103219820Sjeffstruct ib_grh; 1104219820Sjeff 1105219820Sjeffenum ib_process_mad_flags { 1106219820Sjeff IB_MAD_IGNORE_MKEY = 1, 1107219820Sjeff IB_MAD_IGNORE_BKEY = 2, 1108219820Sjeff IB_MAD_IGNORE_ALL = IB_MAD_IGNORE_MKEY | IB_MAD_IGNORE_BKEY 1109219820Sjeff}; 1110219820Sjeff 1111219820Sjeffenum ib_mad_result { 1112219820Sjeff IB_MAD_RESULT_FAILURE = 0, /* (!SUCCESS is the important flag) */ 1113219820Sjeff IB_MAD_RESULT_SUCCESS = 1 << 0, /* MAD was successfully processed */ 1114219820Sjeff IB_MAD_RESULT_REPLY = 1 << 1, /* Reply packet needs to be sent */ 1115219820Sjeff IB_MAD_RESULT_CONSUMED = 1 << 2 /* Packet consumed: stop processing */ 1116219820Sjeff}; 1117219820Sjeff 1118219820Sjeff#define IB_DEVICE_NAME_MAX 64 1119219820Sjeff 1120219820Sjeffstruct ib_cache { 1121219820Sjeff rwlock_t lock; 1122219820Sjeff struct ib_event_handler event_handler; 1123219820Sjeff struct ib_pkey_cache **pkey_cache; 1124219820Sjeff struct ib_gid_cache **gid_cache; 1125219820Sjeff u8 *lmc_cache; 1126219820Sjeff}; 1127219820Sjeff 1128219820Sjeffstruct ib_dma_mapping_ops { 1129219820Sjeff int (*mapping_error)(struct ib_device *dev, 1130219820Sjeff u64 dma_addr); 1131219820Sjeff u64 (*map_single)(struct ib_device *dev, 1132219820Sjeff void *ptr, size_t size, 1133219820Sjeff enum dma_data_direction direction); 1134219820Sjeff void (*unmap_single)(struct ib_device *dev, 1135219820Sjeff u64 addr, size_t size, 1136219820Sjeff enum dma_data_direction direction); 1137219820Sjeff u64 (*map_page)(struct ib_device *dev, 1138219820Sjeff struct page *page, unsigned long offset, 1139219820Sjeff size_t size, 1140219820Sjeff enum dma_data_direction direction); 1141219820Sjeff void (*unmap_page)(struct ib_device *dev, 1142219820Sjeff u64 addr, size_t size, 1143219820Sjeff enum dma_data_direction direction); 1144219820Sjeff int (*map_sg)(struct ib_device *dev, 1145219820Sjeff struct scatterlist *sg, int nents, 1146219820Sjeff enum dma_data_direction direction); 1147219820Sjeff void (*unmap_sg)(struct ib_device *dev, 1148219820Sjeff struct scatterlist *sg, int nents, 1149219820Sjeff enum dma_data_direction direction); 1150219820Sjeff u64 (*dma_address)(struct ib_device *dev, 1151219820Sjeff struct scatterlist *sg); 1152219820Sjeff unsigned int (*dma_len)(struct ib_device *dev, 1153219820Sjeff struct scatterlist *sg); 1154219820Sjeff void (*sync_single_for_cpu)(struct ib_device *dev, 1155219820Sjeff u64 dma_handle, 1156219820Sjeff size_t size, 1157219820Sjeff enum dma_data_direction dir); 1158219820Sjeff void (*sync_single_for_device)(struct ib_device *dev, 1159219820Sjeff u64 dma_handle, 1160219820Sjeff size_t size, 1161219820Sjeff enum dma_data_direction dir); 1162219820Sjeff void *(*alloc_coherent)(struct ib_device *dev, 1163219820Sjeff size_t size, 1164219820Sjeff u64 *dma_handle, 1165219820Sjeff gfp_t flag); 1166219820Sjeff void (*free_coherent)(struct ib_device *dev, 1167219820Sjeff size_t size, void *cpu_addr, 1168219820Sjeff u64 dma_handle); 1169219820Sjeff}; 1170219820Sjeff 1171219820Sjeffstruct iw_cm_verbs; 1172219820Sjeff 1173219820Sjeffstruct ib_device { 1174219820Sjeff struct device *dma_device; 1175219820Sjeff 1176219820Sjeff char name[IB_DEVICE_NAME_MAX]; 1177219820Sjeff 1178219820Sjeff struct list_head event_handler_list; 1179219820Sjeff spinlock_t event_handler_lock; 1180219820Sjeff 1181255932Salfred spinlock_t client_data_lock; 1182219820Sjeff struct list_head core_list; 1183219820Sjeff struct list_head client_data_list; 1184219820Sjeff 1185219820Sjeff struct ib_cache cache; 1186219820Sjeff int *pkey_tbl_len; 1187219820Sjeff int *gid_tbl_len; 1188219820Sjeff 1189219820Sjeff int num_comp_vectors; 1190219820Sjeff 1191219820Sjeff struct iw_cm_verbs *iwcm; 1192219820Sjeff 1193219820Sjeff int (*get_protocol_stats)(struct ib_device *device, 1194219820Sjeff union rdma_protocol_stats *stats); 1195219820Sjeff int (*query_device)(struct ib_device *device, 1196219820Sjeff struct ib_device_attr *device_attr); 1197219820Sjeff int (*query_port)(struct ib_device *device, 1198219820Sjeff u8 port_num, 1199219820Sjeff struct ib_port_attr *port_attr); 1200219820Sjeff enum rdma_link_layer (*get_link_layer)(struct ib_device *device, 1201219820Sjeff u8 port_num); 1202219820Sjeff int (*query_gid)(struct ib_device *device, 1203219820Sjeff u8 port_num, int index, 1204219820Sjeff union ib_gid *gid); 1205219820Sjeff int (*query_pkey)(struct ib_device *device, 1206219820Sjeff u8 port_num, u16 index, u16 *pkey); 1207219820Sjeff int (*modify_device)(struct ib_device *device, 1208219820Sjeff int device_modify_mask, 1209219820Sjeff struct ib_device_modify *device_modify); 1210219820Sjeff int (*modify_port)(struct ib_device *device, 1211219820Sjeff u8 port_num, int port_modify_mask, 1212219820Sjeff struct ib_port_modify *port_modify); 1213219820Sjeff struct ib_ucontext * (*alloc_ucontext)(struct ib_device *device, 1214219820Sjeff struct ib_udata *udata); 1215219820Sjeff int (*dealloc_ucontext)(struct ib_ucontext *context); 1216219820Sjeff int (*mmap)(struct ib_ucontext *context, 1217219820Sjeff struct vm_area_struct *vma); 1218219820Sjeff struct ib_pd * (*alloc_pd)(struct ib_device *device, 1219219820Sjeff struct ib_ucontext *context, 1220219820Sjeff struct ib_udata *udata); 1221219820Sjeff int (*dealloc_pd)(struct ib_pd *pd); 1222219820Sjeff struct ib_ah * (*create_ah)(struct ib_pd *pd, 1223219820Sjeff struct ib_ah_attr *ah_attr); 1224219820Sjeff int (*modify_ah)(struct ib_ah *ah, 1225219820Sjeff struct ib_ah_attr *ah_attr); 1226219820Sjeff int (*query_ah)(struct ib_ah *ah, 1227219820Sjeff struct ib_ah_attr *ah_attr); 1228219820Sjeff int (*destroy_ah)(struct ib_ah *ah); 1229219820Sjeff struct ib_srq * (*create_srq)(struct ib_pd *pd, 1230219820Sjeff struct ib_srq_init_attr *srq_init_attr, 1231219820Sjeff struct ib_udata *udata); 1232219820Sjeff int (*modify_srq)(struct ib_srq *srq, 1233219820Sjeff struct ib_srq_attr *srq_attr, 1234219820Sjeff enum ib_srq_attr_mask srq_attr_mask, 1235219820Sjeff struct ib_udata *udata); 1236219820Sjeff int (*query_srq)(struct ib_srq *srq, 1237219820Sjeff struct ib_srq_attr *srq_attr); 1238219820Sjeff int (*destroy_srq)(struct ib_srq *srq); 1239219820Sjeff int (*post_srq_recv)(struct ib_srq *srq, 1240219820Sjeff struct ib_recv_wr *recv_wr, 1241219820Sjeff struct ib_recv_wr **bad_recv_wr); 1242219820Sjeff struct ib_qp * (*create_qp)(struct ib_pd *pd, 1243219820Sjeff struct ib_qp_init_attr *qp_init_attr, 1244219820Sjeff struct ib_udata *udata); 1245219820Sjeff int (*modify_qp)(struct ib_qp *qp, 1246219820Sjeff struct ib_qp_attr *qp_attr, 1247219820Sjeff int qp_attr_mask, 1248219820Sjeff struct ib_udata *udata); 1249219820Sjeff int (*query_qp)(struct ib_qp *qp, 1250219820Sjeff struct ib_qp_attr *qp_attr, 1251219820Sjeff int qp_attr_mask, 1252219820Sjeff struct ib_qp_init_attr *qp_init_attr); 1253219820Sjeff int (*destroy_qp)(struct ib_qp *qp); 1254219820Sjeff int (*post_send)(struct ib_qp *qp, 1255219820Sjeff struct ib_send_wr *send_wr, 1256219820Sjeff struct ib_send_wr **bad_send_wr); 1257219820Sjeff int (*post_recv)(struct ib_qp *qp, 1258219820Sjeff struct ib_recv_wr *recv_wr, 1259219820Sjeff struct ib_recv_wr **bad_recv_wr); 1260219820Sjeff struct ib_cq * (*create_cq)(struct ib_device *device, int cqe, 1261219820Sjeff int comp_vector, 1262219820Sjeff struct ib_ucontext *context, 1263219820Sjeff struct ib_udata *udata); 1264219820Sjeff int (*modify_cq)(struct ib_cq *cq, u16 cq_count, 1265219820Sjeff u16 cq_period); 1266219820Sjeff int (*destroy_cq)(struct ib_cq *cq); 1267219820Sjeff int (*resize_cq)(struct ib_cq *cq, int cqe, 1268219820Sjeff struct ib_udata *udata); 1269219820Sjeff int (*poll_cq)(struct ib_cq *cq, int num_entries, 1270219820Sjeff struct ib_wc *wc); 1271219820Sjeff int (*peek_cq)(struct ib_cq *cq, int wc_cnt); 1272219820Sjeff int (*req_notify_cq)(struct ib_cq *cq, 1273219820Sjeff enum ib_cq_notify_flags flags); 1274219820Sjeff int (*req_ncomp_notif)(struct ib_cq *cq, 1275219820Sjeff int wc_cnt); 1276219820Sjeff struct ib_mr * (*get_dma_mr)(struct ib_pd *pd, 1277219820Sjeff int mr_access_flags); 1278219820Sjeff struct ib_mr * (*reg_phys_mr)(struct ib_pd *pd, 1279219820Sjeff struct ib_phys_buf *phys_buf_array, 1280219820Sjeff int num_phys_buf, 1281219820Sjeff int mr_access_flags, 1282219820Sjeff u64 *iova_start); 1283219820Sjeff struct ib_mr * (*reg_user_mr)(struct ib_pd *pd, 1284219820Sjeff u64 start, u64 length, 1285219820Sjeff u64 virt_addr, 1286219820Sjeff int mr_access_flags, 1287255932Salfred struct ib_udata *udata, 1288255932Salfred int mr_id); 1289219820Sjeff int (*query_mr)(struct ib_mr *mr, 1290219820Sjeff struct ib_mr_attr *mr_attr); 1291219820Sjeff int (*dereg_mr)(struct ib_mr *mr); 1292219820Sjeff struct ib_mr * (*alloc_fast_reg_mr)(struct ib_pd *pd, 1293219820Sjeff int max_page_list_len); 1294219820Sjeff struct ib_fast_reg_page_list * (*alloc_fast_reg_page_list)(struct ib_device *device, 1295219820Sjeff int page_list_len); 1296219820Sjeff void (*free_fast_reg_page_list)(struct ib_fast_reg_page_list *page_list); 1297219820Sjeff int (*rereg_phys_mr)(struct ib_mr *mr, 1298219820Sjeff int mr_rereg_mask, 1299219820Sjeff struct ib_pd *pd, 1300219820Sjeff struct ib_phys_buf *phys_buf_array, 1301219820Sjeff int num_phys_buf, 1302219820Sjeff int mr_access_flags, 1303219820Sjeff u64 *iova_start); 1304219820Sjeff struct ib_mw * (*alloc_mw)(struct ib_pd *pd); 1305219820Sjeff int (*bind_mw)(struct ib_qp *qp, 1306219820Sjeff struct ib_mw *mw, 1307219820Sjeff struct ib_mw_bind *mw_bind); 1308219820Sjeff int (*dealloc_mw)(struct ib_mw *mw); 1309219820Sjeff struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd, 1310219820Sjeff int mr_access_flags, 1311219820Sjeff struct ib_fmr_attr *fmr_attr); 1312219820Sjeff int (*map_phys_fmr)(struct ib_fmr *fmr, 1313219820Sjeff u64 *page_list, int list_len, 1314219820Sjeff u64 iova); 1315219820Sjeff int (*unmap_fmr)(struct list_head *fmr_list); 1316219820Sjeff int (*dealloc_fmr)(struct ib_fmr *fmr); 1317219820Sjeff int (*attach_mcast)(struct ib_qp *qp, 1318219820Sjeff union ib_gid *gid, 1319219820Sjeff u16 lid); 1320219820Sjeff int (*detach_mcast)(struct ib_qp *qp, 1321219820Sjeff union ib_gid *gid, 1322219820Sjeff u16 lid); 1323219820Sjeff int (*process_mad)(struct ib_device *device, 1324219820Sjeff int process_mad_flags, 1325219820Sjeff u8 port_num, 1326219820Sjeff struct ib_wc *in_wc, 1327219820Sjeff struct ib_grh *in_grh, 1328219820Sjeff struct ib_mad *in_mad, 1329219820Sjeff struct ib_mad *out_mad); 1330219820Sjeff struct ib_srq * (*create_xrc_srq)(struct ib_pd *pd, 1331219820Sjeff struct ib_cq *xrc_cq, 1332219820Sjeff struct ib_xrcd *xrcd, 1333219820Sjeff struct ib_srq_init_attr *srq_init_attr, 1334219820Sjeff struct ib_udata *udata); 1335219820Sjeff struct ib_xrcd * (*alloc_xrcd)(struct ib_device *device, 1336255932Salfred struct ib_ucontext *ucontext, 1337219820Sjeff struct ib_udata *udata); 1338219820Sjeff int (*dealloc_xrcd)(struct ib_xrcd *xrcd); 1339219820Sjeff int (*create_xrc_rcv_qp)(struct ib_qp_init_attr *init_attr, 1340219820Sjeff u32 *qp_num); 1341219820Sjeff int (*modify_xrc_rcv_qp)(struct ib_xrcd *xrcd, 1342219820Sjeff u32 qp_num, 1343219820Sjeff struct ib_qp_attr *attr, 1344219820Sjeff int attr_mask); 1345219820Sjeff int (*query_xrc_rcv_qp)(struct ib_xrcd *xrcd, 1346219820Sjeff u32 qp_num, 1347219820Sjeff struct ib_qp_attr *attr, 1348219820Sjeff int attr_mask, 1349219820Sjeff struct ib_qp_init_attr *init_attr); 1350219820Sjeff int (*reg_xrc_rcv_qp)(struct ib_xrcd *xrcd, 1351219820Sjeff void *context, 1352219820Sjeff u32 qp_num); 1353219820Sjeff int (*unreg_xrc_rcv_qp)(struct ib_xrcd *xrcd, 1354219820Sjeff void *context, 1355219820Sjeff u32 qp_num); 1356255932Salfred int (*attach_flow)(struct ib_qp *qp, 1357255932Salfred struct ib_flow_spec *spec, 1358255932Salfred int priority); 1359255932Salfred int (*detach_flow)(struct ib_qp *qp, 1360255932Salfred struct ib_flow_spec *spec, 1361255932Salfred int priority); 1362219820Sjeff 1363255932Salfred unsigned long (*get_unmapped_area)(struct file *file, 1364255932Salfred unsigned long addr, 1365255932Salfred unsigned long len, unsigned long pgoff, 1366255932Salfred unsigned long flags); 1367219820Sjeff struct ib_dma_mapping_ops *dma_ops; 1368219820Sjeff 1369219820Sjeff struct module *owner; 1370219820Sjeff struct device dev; 1371219820Sjeff struct kobject *ports_parent; 1372219820Sjeff struct list_head port_list; 1373219820Sjeff 1374219820Sjeff enum { 1375219820Sjeff IB_DEV_UNINITIALIZED, 1376219820Sjeff IB_DEV_REGISTERED, 1377219820Sjeff IB_DEV_UNREGISTERED 1378219820Sjeff } reg_state; 1379219820Sjeff 1380255932Salfred int uverbs_abi_ver; 1381219820Sjeff u64 uverbs_cmd_mask; 1382219820Sjeff 1383219820Sjeff char node_desc[64]; 1384219820Sjeff __be64 node_guid; 1385219820Sjeff u32 local_dma_lkey; 1386219820Sjeff u8 node_type; 1387219820Sjeff u8 phys_port_cnt; 1388219820Sjeff struct rb_root ib_uverbs_xrcd_table; 1389219820Sjeff struct mutex xrcd_table_mutex; 1390219820Sjeff}; 1391219820Sjeff 1392219820Sjeffstruct ib_client { 1393219820Sjeff char *name; 1394219820Sjeff void (*add) (struct ib_device *); 1395219820Sjeff void (*remove)(struct ib_device *); 1396219820Sjeff 1397219820Sjeff struct list_head list; 1398219820Sjeff}; 1399219820Sjeff 1400219820Sjeffstruct ib_device *ib_alloc_device(size_t size); 1401219820Sjeffvoid ib_dealloc_device(struct ib_device *device); 1402219820Sjeff 1403255932Salfredint ib_register_device(struct ib_device *device, 1404255932Salfred int (*port_callback)(struct ib_device *, 1405255932Salfred u8, struct kobject *)); 1406219820Sjeffvoid ib_unregister_device(struct ib_device *device); 1407219820Sjeff 1408219820Sjeffint ib_register_client (struct ib_client *client); 1409219820Sjeffvoid ib_unregister_client(struct ib_client *client); 1410219820Sjeff 1411219820Sjeffvoid *ib_get_client_data(struct ib_device *device, struct ib_client *client); 1412219820Sjeffvoid ib_set_client_data(struct ib_device *device, struct ib_client *client, 1413219820Sjeff void *data); 1414219820Sjeff 1415219820Sjeffstatic inline int ib_copy_from_udata(void *dest, struct ib_udata *udata, size_t len) 1416219820Sjeff{ 1417219820Sjeff return copy_from_user(dest, udata->inbuf, len) ? -EFAULT : 0; 1418219820Sjeff} 1419219820Sjeff 1420219820Sjeffstatic inline int ib_copy_to_udata(struct ib_udata *udata, void *src, size_t len) 1421219820Sjeff{ 1422219820Sjeff return copy_to_user(udata->outbuf, src, len) ? -EFAULT : 0; 1423219820Sjeff} 1424219820Sjeff 1425219820Sjeff/** 1426219820Sjeff * ib_modify_qp_is_ok - Check that the supplied attribute mask 1427219820Sjeff * contains all required attributes and no attributes not allowed for 1428219820Sjeff * the given QP state transition. 1429219820Sjeff * @cur_state: Current QP state 1430219820Sjeff * @next_state: Next QP state 1431219820Sjeff * @type: QP type 1432219820Sjeff * @mask: Mask of supplied QP attributes 1433219820Sjeff * 1434219820Sjeff * This function is a helper function that a low-level driver's 1435219820Sjeff * modify_qp method can use to validate the consumer's input. It 1436219820Sjeff * checks that cur_state and next_state are valid QP states, that a 1437219820Sjeff * transition from cur_state to next_state is allowed by the IB spec, 1438219820Sjeff * and that the attribute mask supplied is allowed for the transition. 1439219820Sjeff */ 1440219820Sjeffint ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state, 1441219820Sjeff enum ib_qp_type type, enum ib_qp_attr_mask mask); 1442219820Sjeff 1443219820Sjeffint ib_register_event_handler (struct ib_event_handler *event_handler); 1444219820Sjeffint ib_unregister_event_handler(struct ib_event_handler *event_handler); 1445219820Sjeffvoid ib_dispatch_event(struct ib_event *event); 1446219820Sjeff 1447219820Sjeffint ib_query_device(struct ib_device *device, 1448219820Sjeff struct ib_device_attr *device_attr); 1449219820Sjeff 1450219820Sjeffint ib_query_port(struct ib_device *device, 1451219820Sjeff u8 port_num, struct ib_port_attr *port_attr); 1452219820Sjeff 1453219820Sjeffenum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, 1454219820Sjeff u8 port_num); 1455219820Sjeff 1456219820Sjeffint ib_query_gid(struct ib_device *device, 1457219820Sjeff u8 port_num, int index, union ib_gid *gid); 1458219820Sjeff 1459219820Sjeffint ib_query_pkey(struct ib_device *device, 1460219820Sjeff u8 port_num, u16 index, u16 *pkey); 1461219820Sjeff 1462219820Sjeffint ib_modify_device(struct ib_device *device, 1463219820Sjeff int device_modify_mask, 1464219820Sjeff struct ib_device_modify *device_modify); 1465219820Sjeff 1466219820Sjeffint ib_modify_port(struct ib_device *device, 1467219820Sjeff u8 port_num, int port_modify_mask, 1468219820Sjeff struct ib_port_modify *port_modify); 1469219820Sjeff 1470219820Sjeffint ib_find_gid(struct ib_device *device, union ib_gid *gid, 1471219820Sjeff u8 *port_num, u16 *index); 1472219820Sjeff 1473219820Sjeffint ib_find_pkey(struct ib_device *device, 1474219820Sjeff u8 port_num, u16 pkey, u16 *index); 1475219820Sjeff 1476219820Sjeff/** 1477219820Sjeff * ib_alloc_pd - Allocates an unused protection domain. 1478219820Sjeff * @device: The device on which to allocate the protection domain. 1479219820Sjeff * 1480219820Sjeff * A protection domain object provides an association between QPs, shared 1481219820Sjeff * receive queues, address handles, memory regions, and memory windows. 1482219820Sjeff */ 1483219820Sjeffstruct ib_pd *ib_alloc_pd(struct ib_device *device); 1484219820Sjeff 1485219820Sjeff/** 1486219820Sjeff * ib_dealloc_pd - Deallocates a protection domain. 1487219820Sjeff * @pd: The protection domain to deallocate. 1488219820Sjeff */ 1489219820Sjeffint ib_dealloc_pd(struct ib_pd *pd); 1490219820Sjeff 1491219820Sjeff/** 1492219820Sjeff * ib_create_ah - Creates an address handle for the given address vector. 1493219820Sjeff * @pd: The protection domain associated with the address handle. 1494219820Sjeff * @ah_attr: The attributes of the address vector. 1495219820Sjeff * 1496219820Sjeff * The address handle is used to reference a local or global destination 1497219820Sjeff * in all UD QP post sends. 1498219820Sjeff */ 1499219820Sjeffstruct ib_ah *ib_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr); 1500219820Sjeff 1501219820Sjeff/** 1502219820Sjeff * ib_init_ah_from_wc - Initializes address handle attributes from a 1503219820Sjeff * work completion. 1504219820Sjeff * @device: Device on which the received message arrived. 1505219820Sjeff * @port_num: Port on which the received message arrived. 1506219820Sjeff * @wc: Work completion associated with the received message. 1507219820Sjeff * @grh: References the received global route header. This parameter is 1508219820Sjeff * ignored unless the work completion indicates that the GRH is valid. 1509219820Sjeff * @ah_attr: Returned attributes that can be used when creating an address 1510219820Sjeff * handle for replying to the message. 1511219820Sjeff */ 1512219820Sjeffint ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc, 1513219820Sjeff struct ib_grh *grh, struct ib_ah_attr *ah_attr); 1514219820Sjeff 1515219820Sjeff/** 1516219820Sjeff * ib_create_ah_from_wc - Creates an address handle associated with the 1517219820Sjeff * sender of the specified work completion. 1518219820Sjeff * @pd: The protection domain associated with the address handle. 1519219820Sjeff * @wc: Work completion information associated with a received message. 1520219820Sjeff * @grh: References the received global route header. This parameter is 1521219820Sjeff * ignored unless the work completion indicates that the GRH is valid. 1522219820Sjeff * @port_num: The outbound port number to associate with the address. 1523219820Sjeff * 1524219820Sjeff * The address handle is used to reference a local or global destination 1525219820Sjeff * in all UD QP post sends. 1526219820Sjeff */ 1527219820Sjeffstruct ib_ah *ib_create_ah_from_wc(struct ib_pd *pd, struct ib_wc *wc, 1528219820Sjeff struct ib_grh *grh, u8 port_num); 1529219820Sjeff 1530219820Sjeff/** 1531219820Sjeff * ib_modify_ah - Modifies the address vector associated with an address 1532219820Sjeff * handle. 1533219820Sjeff * @ah: The address handle to modify. 1534219820Sjeff * @ah_attr: The new address vector attributes to associate with the 1535219820Sjeff * address handle. 1536219820Sjeff */ 1537219820Sjeffint ib_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); 1538219820Sjeff 1539219820Sjeff/** 1540219820Sjeff * ib_query_ah - Queries the address vector associated with an address 1541219820Sjeff * handle. 1542219820Sjeff * @ah: The address handle to query. 1543219820Sjeff * @ah_attr: The address vector attributes associated with the address 1544219820Sjeff * handle. 1545219820Sjeff */ 1546219820Sjeffint ib_query_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr); 1547219820Sjeff 1548219820Sjeff/** 1549219820Sjeff * ib_destroy_ah - Destroys an address handle. 1550219820Sjeff * @ah: The address handle to destroy. 1551219820Sjeff */ 1552219820Sjeffint ib_destroy_ah(struct ib_ah *ah); 1553219820Sjeff 1554219820Sjeff/** 1555219820Sjeff * ib_create_xrc_srq - Creates an XRC SRQ associated with the specified 1556219820Sjeff * protection domain, cq, and xrc domain. 1557219820Sjeff * @pd: The protection domain associated with the SRQ. 1558219820Sjeff * @xrc_cq: The cq to be associated with the XRC SRQ. 1559219820Sjeff * @xrcd: The XRC domain to be associated with the XRC SRQ. 1560219820Sjeff * @srq_init_attr: A list of initial attributes required to create the 1561219820Sjeff * XRC SRQ. If XRC SRQ creation succeeds, then the attributes are updated 1562219820Sjeff * to the actual capabilities of the created XRC SRQ. 1563219820Sjeff * 1564219820Sjeff * srq_attr->max_wr and srq_attr->max_sge are read the determine the 1565219820Sjeff * requested size of the XRC SRQ, and set to the actual values allocated 1566219820Sjeff * on return. If ib_create_xrc_srq() succeeds, then max_wr and max_sge 1567219820Sjeff * will always be at least as large as the requested values. 1568219820Sjeff */ 1569219820Sjeffstruct ib_srq *ib_create_xrc_srq(struct ib_pd *pd, 1570219820Sjeff struct ib_cq *xrc_cq, 1571219820Sjeff struct ib_xrcd *xrcd, 1572219820Sjeff struct ib_srq_init_attr *srq_init_attr); 1573219820Sjeff 1574219820Sjeff/** 1575255932Salfred * ib_create_srq - Creates a SRQ associated with the specified protection 1576255932Salfred * domain. 1577219820Sjeff * @pd: The protection domain associated with the SRQ. 1578219820Sjeff * @srq_init_attr: A list of initial attributes required to create the 1579219820Sjeff * SRQ. If SRQ creation succeeds, then the attributes are updated to 1580219820Sjeff * the actual capabilities of the created SRQ. 1581219820Sjeff * 1582219820Sjeff * srq_attr->max_wr and srq_attr->max_sge are read the determine the 1583219820Sjeff * requested size of the SRQ, and set to the actual values allocated 1584219820Sjeff * on return. If ib_create_srq() succeeds, then max_wr and max_sge 1585219820Sjeff * will always be at least as large as the requested values. 1586219820Sjeff */ 1587219820Sjeffstruct ib_srq *ib_create_srq(struct ib_pd *pd, 1588219820Sjeff struct ib_srq_init_attr *srq_init_attr); 1589219820Sjeff 1590219820Sjeff/** 1591219820Sjeff * ib_modify_srq - Modifies the attributes for the specified SRQ. 1592219820Sjeff * @srq: The SRQ to modify. 1593219820Sjeff * @srq_attr: On input, specifies the SRQ attributes to modify. On output, 1594219820Sjeff * the current values of selected SRQ attributes are returned. 1595219820Sjeff * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ 1596219820Sjeff * are being modified. 1597219820Sjeff * 1598219820Sjeff * The mask may contain IB_SRQ_MAX_WR to resize the SRQ and/or 1599219820Sjeff * IB_SRQ_LIMIT to set the SRQ's limit and request notification when 1600219820Sjeff * the number of receives queued drops below the limit. 1601219820Sjeff */ 1602219820Sjeffint ib_modify_srq(struct ib_srq *srq, 1603219820Sjeff struct ib_srq_attr *srq_attr, 1604219820Sjeff enum ib_srq_attr_mask srq_attr_mask); 1605219820Sjeff 1606219820Sjeff/** 1607219820Sjeff * ib_query_srq - Returns the attribute list and current values for the 1608219820Sjeff * specified SRQ. 1609219820Sjeff * @srq: The SRQ to query. 1610219820Sjeff * @srq_attr: The attributes of the specified SRQ. 1611219820Sjeff */ 1612219820Sjeffint ib_query_srq(struct ib_srq *srq, 1613219820Sjeff struct ib_srq_attr *srq_attr); 1614219820Sjeff 1615219820Sjeff/** 1616219820Sjeff * ib_destroy_srq - Destroys the specified SRQ. 1617219820Sjeff * @srq: The SRQ to destroy. 1618219820Sjeff */ 1619219820Sjeffint ib_destroy_srq(struct ib_srq *srq); 1620219820Sjeff 1621219820Sjeff/** 1622219820Sjeff * ib_post_srq_recv - Posts a list of work requests to the specified SRQ. 1623219820Sjeff * @srq: The SRQ to post the work request on. 1624219820Sjeff * @recv_wr: A list of work requests to post on the receive queue. 1625219820Sjeff * @bad_recv_wr: On an immediate failure, this parameter will reference 1626219820Sjeff * the work request that failed to be posted on the QP. 1627219820Sjeff */ 1628219820Sjeffstatic inline int ib_post_srq_recv(struct ib_srq *srq, 1629219820Sjeff struct ib_recv_wr *recv_wr, 1630219820Sjeff struct ib_recv_wr **bad_recv_wr) 1631219820Sjeff{ 1632219820Sjeff return srq->device->post_srq_recv(srq, recv_wr, bad_recv_wr); 1633219820Sjeff} 1634219820Sjeff 1635219820Sjeff/** 1636219820Sjeff * ib_create_qp - Creates a QP associated with the specified protection 1637219820Sjeff * domain. 1638219820Sjeff * @pd: The protection domain associated with the QP. 1639219820Sjeff * @qp_init_attr: A list of initial attributes required to create the 1640219820Sjeff * QP. If QP creation succeeds, then the attributes are updated to 1641219820Sjeff * the actual capabilities of the created QP. 1642219820Sjeff */ 1643219820Sjeffstruct ib_qp *ib_create_qp(struct ib_pd *pd, 1644219820Sjeff struct ib_qp_init_attr *qp_init_attr); 1645219820Sjeff 1646219820Sjeff/** 1647219820Sjeff * ib_modify_qp - Modifies the attributes for the specified QP and then 1648219820Sjeff * transitions the QP to the given state. 1649219820Sjeff * @qp: The QP to modify. 1650219820Sjeff * @qp_attr: On input, specifies the QP attributes to modify. On output, 1651219820Sjeff * the current values of selected QP attributes are returned. 1652219820Sjeff * @qp_attr_mask: A bit-mask used to specify which attributes of the QP 1653219820Sjeff * are being modified. 1654219820Sjeff */ 1655219820Sjeffint ib_modify_qp(struct ib_qp *qp, 1656219820Sjeff struct ib_qp_attr *qp_attr, 1657219820Sjeff int qp_attr_mask); 1658219820Sjeff 1659219820Sjeff/** 1660219820Sjeff * ib_query_qp - Returns the attribute list and current values for the 1661219820Sjeff * specified QP. 1662219820Sjeff * @qp: The QP to query. 1663219820Sjeff * @qp_attr: The attributes of the specified QP. 1664219820Sjeff * @qp_attr_mask: A bit-mask used to select specific attributes to query. 1665219820Sjeff * @qp_init_attr: Additional attributes of the selected QP. 1666219820Sjeff * 1667219820Sjeff * The qp_attr_mask may be used to limit the query to gathering only the 1668219820Sjeff * selected attributes. 1669219820Sjeff */ 1670219820Sjeffint ib_query_qp(struct ib_qp *qp, 1671219820Sjeff struct ib_qp_attr *qp_attr, 1672219820Sjeff int qp_attr_mask, 1673219820Sjeff struct ib_qp_init_attr *qp_init_attr); 1674219820Sjeff 1675219820Sjeff/** 1676219820Sjeff * ib_destroy_qp - Destroys the specified QP. 1677219820Sjeff * @qp: The QP to destroy. 1678219820Sjeff */ 1679219820Sjeffint ib_destroy_qp(struct ib_qp *qp); 1680219820Sjeff 1681219820Sjeff/** 1682255932Salfred * ib_open_qp - Obtain a reference to an existing sharable QP. 1683255932Salfred * @xrcd - XRC domain 1684255932Salfred * @qp_open_attr: Attributes identifying the QP to open. 1685255932Salfred * 1686255932Salfred * Returns a reference to a sharable QP. 1687255932Salfred */ 1688255932Salfredstruct ib_qp *ib_open_qp(struct ib_xrcd *xrcd, 1689255932Salfred struct ib_qp_open_attr *qp_open_attr); 1690255932Salfred 1691255932Salfred/** 1692255932Salfred * ib_close_qp - Release an external reference to a QP. 1693255932Salfred * @qp: The QP handle to release 1694255932Salfred * 1695255932Salfred * The opened QP handle is released by the caller. The underlying 1696255932Salfred * shared QP is not destroyed until all internal references are released. 1697255932Salfred */ 1698255932Salfredint ib_close_qp(struct ib_qp *qp); 1699255932Salfred 1700255932Salfred/** 1701219820Sjeff * ib_post_send - Posts a list of work requests to the send queue of 1702219820Sjeff * the specified QP. 1703219820Sjeff * @qp: The QP to post the work request on. 1704219820Sjeff * @send_wr: A list of work requests to post on the send queue. 1705219820Sjeff * @bad_send_wr: On an immediate failure, this parameter will reference 1706219820Sjeff * the work request that failed to be posted on the QP. 1707255932Salfred * 1708255932Salfred * While IBA Vol. 1 section 11.4.1.1 specifies that if an immediate 1709255932Salfred * error is returned, the QP state shall not be affected, 1710255932Salfred * ib_post_send() will return an immediate error after queueing any 1711255932Salfred * earlier work requests in the list. 1712219820Sjeff */ 1713219820Sjeffstatic inline int ib_post_send(struct ib_qp *qp, 1714219820Sjeff struct ib_send_wr *send_wr, 1715219820Sjeff struct ib_send_wr **bad_send_wr) 1716219820Sjeff{ 1717219820Sjeff return qp->device->post_send(qp, send_wr, bad_send_wr); 1718219820Sjeff} 1719219820Sjeff 1720219820Sjeff/** 1721219820Sjeff * ib_post_recv - Posts a list of work requests to the receive queue of 1722219820Sjeff * the specified QP. 1723219820Sjeff * @qp: The QP to post the work request on. 1724219820Sjeff * @recv_wr: A list of work requests to post on the receive queue. 1725219820Sjeff * @bad_recv_wr: On an immediate failure, this parameter will reference 1726219820Sjeff * the work request that failed to be posted on the QP. 1727219820Sjeff */ 1728219820Sjeffstatic inline int ib_post_recv(struct ib_qp *qp, 1729219820Sjeff struct ib_recv_wr *recv_wr, 1730219820Sjeff struct ib_recv_wr **bad_recv_wr) 1731219820Sjeff{ 1732219820Sjeff return qp->device->post_recv(qp, recv_wr, bad_recv_wr); 1733219820Sjeff} 1734219820Sjeff 1735219820Sjeff/* 1736219820Sjeff * IB_CQ_VECTOR_LEAST_ATTACHED: The constant specifies that 1737219820Sjeff * the CQ will be attached to the completion vector that has 1738219820Sjeff * the least number of CQs already attached to it. 1739219820Sjeff */ 1740219820Sjeff#define IB_CQ_VECTOR_LEAST_ATTACHED 0xffffffff 1741219820Sjeff 1742219820Sjeff/** 1743219820Sjeff * ib_create_cq - Creates a CQ on the specified device. 1744219820Sjeff * @device: The device on which to create the CQ. 1745219820Sjeff * @comp_handler: A user-specified callback that is invoked when a 1746219820Sjeff * completion event occurs on the CQ. 1747219820Sjeff * @event_handler: A user-specified callback that is invoked when an 1748219820Sjeff * asynchronous event not associated with a completion occurs on the CQ. 1749219820Sjeff * @cq_context: Context associated with the CQ returned to the user via 1750219820Sjeff * the associated completion and event handlers. 1751219820Sjeff * @cqe: The minimum size of the CQ. 1752219820Sjeff * @comp_vector - Completion vector used to signal completion events. 1753255932Salfred * Must be >= 0 and < context->num_comp_vectors. 1754219820Sjeff * 1755219820Sjeff * Users can examine the cq structure to determine the actual CQ size. 1756219820Sjeff */ 1757219820Sjeffstruct ib_cq *ib_create_cq(struct ib_device *device, 1758219820Sjeff ib_comp_handler comp_handler, 1759219820Sjeff void (*event_handler)(struct ib_event *, void *), 1760219820Sjeff void *cq_context, int cqe, int comp_vector); 1761219820Sjeff 1762219820Sjeff/** 1763219820Sjeff * ib_resize_cq - Modifies the capacity of the CQ. 1764219820Sjeff * @cq: The CQ to resize. 1765219820Sjeff * @cqe: The minimum size of the CQ. 1766219820Sjeff * 1767219820Sjeff * Users can examine the cq structure to determine the actual CQ size. 1768219820Sjeff */ 1769219820Sjeffint ib_resize_cq(struct ib_cq *cq, int cqe); 1770219820Sjeff 1771219820Sjeff/** 1772219820Sjeff * ib_modify_cq - Modifies moderation params of the CQ 1773219820Sjeff * @cq: The CQ to modify. 1774219820Sjeff * @cq_count: number of CQEs that will trigger an event 1775219820Sjeff * @cq_period: max period of time in usec before triggering an event 1776219820Sjeff * 1777219820Sjeff */ 1778219820Sjeffint ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period); 1779219820Sjeff 1780219820Sjeff/** 1781219820Sjeff * ib_destroy_cq - Destroys the specified CQ. 1782219820Sjeff * @cq: The CQ to destroy. 1783219820Sjeff */ 1784219820Sjeffint ib_destroy_cq(struct ib_cq *cq); 1785219820Sjeff 1786219820Sjeff/** 1787219820Sjeff * ib_poll_cq - poll a CQ for completion(s) 1788219820Sjeff * @cq:the CQ being polled 1789219820Sjeff * @num_entries:maximum number of completions to return 1790219820Sjeff * @wc:array of at least @num_entries &struct ib_wc where completions 1791219820Sjeff * will be returned 1792219820Sjeff * 1793219820Sjeff * Poll a CQ for (possibly multiple) completions. If the return value 1794219820Sjeff * is < 0, an error occurred. If the return value is >= 0, it is the 1795219820Sjeff * number of completions returned. If the return value is 1796219820Sjeff * non-negative and < num_entries, then the CQ was emptied. 1797219820Sjeff */ 1798219820Sjeffstatic inline int ib_poll_cq(struct ib_cq *cq, int num_entries, 1799219820Sjeff struct ib_wc *wc) 1800219820Sjeff{ 1801219820Sjeff return cq->device->poll_cq(cq, num_entries, wc); 1802219820Sjeff} 1803219820Sjeff 1804219820Sjeff/** 1805219820Sjeff * ib_peek_cq - Returns the number of unreaped completions currently 1806219820Sjeff * on the specified CQ. 1807219820Sjeff * @cq: The CQ to peek. 1808219820Sjeff * @wc_cnt: A minimum number of unreaped completions to check for. 1809219820Sjeff * 1810219820Sjeff * If the number of unreaped completions is greater than or equal to wc_cnt, 1811219820Sjeff * this function returns wc_cnt, otherwise, it returns the actual number of 1812219820Sjeff * unreaped completions. 1813219820Sjeff */ 1814219820Sjeffint ib_peek_cq(struct ib_cq *cq, int wc_cnt); 1815219820Sjeff 1816219820Sjeff/** 1817219820Sjeff * ib_req_notify_cq - Request completion notification on a CQ. 1818219820Sjeff * @cq: The CQ to generate an event for. 1819219820Sjeff * @flags: 1820219820Sjeff * Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP 1821219820Sjeff * to request an event on the next solicited event or next work 1822219820Sjeff * completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS 1823219820Sjeff * may also be |ed in to request a hint about missed events, as 1824219820Sjeff * described below. 1825219820Sjeff * 1826219820Sjeff * Return Value: 1827219820Sjeff * < 0 means an error occurred while requesting notification 1828219820Sjeff * == 0 means notification was requested successfully, and if 1829219820Sjeff * IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events 1830219820Sjeff * were missed and it is safe to wait for another event. In 1831219820Sjeff * this case is it guaranteed that any work completions added 1832219820Sjeff * to the CQ since the last CQ poll will trigger a completion 1833219820Sjeff * notification event. 1834219820Sjeff * > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed 1835219820Sjeff * in. It means that the consumer must poll the CQ again to 1836219820Sjeff * make sure it is empty to avoid missing an event because of a 1837219820Sjeff * race between requesting notification and an entry being 1838219820Sjeff * added to the CQ. This return value means it is possible 1839219820Sjeff * (but not guaranteed) that a work completion has been added 1840219820Sjeff * to the CQ since the last poll without triggering a 1841219820Sjeff * completion notification event. 1842219820Sjeff */ 1843219820Sjeffstatic inline int ib_req_notify_cq(struct ib_cq *cq, 1844219820Sjeff enum ib_cq_notify_flags flags) 1845219820Sjeff{ 1846219820Sjeff return cq->device->req_notify_cq(cq, flags); 1847219820Sjeff} 1848219820Sjeff 1849219820Sjeff/** 1850219820Sjeff * ib_req_ncomp_notif - Request completion notification when there are 1851219820Sjeff * at least the specified number of unreaped completions on the CQ. 1852219820Sjeff * @cq: The CQ to generate an event for. 1853219820Sjeff * @wc_cnt: The number of unreaped completions that should be on the 1854219820Sjeff * CQ before an event is generated. 1855219820Sjeff */ 1856219820Sjeffstatic inline int ib_req_ncomp_notif(struct ib_cq *cq, int wc_cnt) 1857219820Sjeff{ 1858219820Sjeff return cq->device->req_ncomp_notif ? 1859219820Sjeff cq->device->req_ncomp_notif(cq, wc_cnt) : 1860219820Sjeff -ENOSYS; 1861219820Sjeff} 1862219820Sjeff 1863219820Sjeff/** 1864219820Sjeff * ib_get_dma_mr - Returns a memory region for system memory that is 1865219820Sjeff * usable for DMA. 1866219820Sjeff * @pd: The protection domain associated with the memory region. 1867219820Sjeff * @mr_access_flags: Specifies the memory access rights. 1868219820Sjeff * 1869219820Sjeff * Note that the ib_dma_*() functions defined below must be used 1870219820Sjeff * to create/destroy addresses used with the Lkey or Rkey returned 1871219820Sjeff * by ib_get_dma_mr(). 1872219820Sjeff */ 1873219820Sjeffstruct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags); 1874219820Sjeff 1875219820Sjeff/** 1876219820Sjeff * ib_dma_mapping_error - check a DMA addr for error 1877219820Sjeff * @dev: The device for which the dma_addr was created 1878219820Sjeff * @dma_addr: The DMA address to check 1879219820Sjeff */ 1880219820Sjeffstatic inline int ib_dma_mapping_error(struct ib_device *dev, u64 dma_addr) 1881219820Sjeff{ 1882219820Sjeff if (dev->dma_ops) 1883219820Sjeff return dev->dma_ops->mapping_error(dev, dma_addr); 1884219820Sjeff return dma_mapping_error(dev->dma_device, dma_addr); 1885219820Sjeff} 1886219820Sjeff 1887219820Sjeff/** 1888219820Sjeff * ib_dma_map_single - Map a kernel virtual address to DMA address 1889219820Sjeff * @dev: The device for which the dma_addr is to be created 1890219820Sjeff * @cpu_addr: The kernel virtual address 1891219820Sjeff * @size: The size of the region in bytes 1892219820Sjeff * @direction: The direction of the DMA 1893219820Sjeff */ 1894219820Sjeffstatic inline u64 ib_dma_map_single(struct ib_device *dev, 1895219820Sjeff void *cpu_addr, size_t size, 1896219820Sjeff enum dma_data_direction direction) 1897219820Sjeff{ 1898219820Sjeff if (dev->dma_ops) 1899219820Sjeff return dev->dma_ops->map_single(dev, cpu_addr, size, direction); 1900219820Sjeff return dma_map_single(dev->dma_device, cpu_addr, size, direction); 1901219820Sjeff} 1902219820Sjeff 1903219820Sjeff/** 1904219820Sjeff * ib_dma_unmap_single - Destroy a mapping created by ib_dma_map_single() 1905219820Sjeff * @dev: The device for which the DMA address was created 1906219820Sjeff * @addr: The DMA address 1907219820Sjeff * @size: The size of the region in bytes 1908219820Sjeff * @direction: The direction of the DMA 1909219820Sjeff */ 1910219820Sjeffstatic inline void ib_dma_unmap_single(struct ib_device *dev, 1911219820Sjeff u64 addr, size_t size, 1912219820Sjeff enum dma_data_direction direction) 1913219820Sjeff{ 1914219820Sjeff if (dev->dma_ops) 1915219820Sjeff dev->dma_ops->unmap_single(dev, addr, size, direction); 1916219820Sjeff else 1917219820Sjeff dma_unmap_single(dev->dma_device, addr, size, direction); 1918219820Sjeff} 1919219820Sjeff 1920219820Sjeffstatic inline u64 ib_dma_map_single_attrs(struct ib_device *dev, 1921219820Sjeff void *cpu_addr, size_t size, 1922219820Sjeff enum dma_data_direction direction, 1923219820Sjeff struct dma_attrs *attrs) 1924219820Sjeff{ 1925219820Sjeff return dma_map_single_attrs(dev->dma_device, cpu_addr, size, 1926219820Sjeff direction, attrs); 1927219820Sjeff} 1928219820Sjeff 1929219820Sjeffstatic inline void ib_dma_unmap_single_attrs(struct ib_device *dev, 1930219820Sjeff u64 addr, size_t size, 1931219820Sjeff enum dma_data_direction direction, 1932219820Sjeff struct dma_attrs *attrs) 1933219820Sjeff{ 1934219820Sjeff return dma_unmap_single_attrs(dev->dma_device, addr, size, 1935219820Sjeff direction, attrs); 1936219820Sjeff} 1937219820Sjeff 1938219820Sjeff/** 1939219820Sjeff * ib_dma_map_page - Map a physical page to DMA address 1940219820Sjeff * @dev: The device for which the dma_addr is to be created 1941219820Sjeff * @page: The page to be mapped 1942219820Sjeff * @offset: The offset within the page 1943219820Sjeff * @size: The size of the region in bytes 1944219820Sjeff * @direction: The direction of the DMA 1945219820Sjeff */ 1946219820Sjeffstatic inline u64 ib_dma_map_page(struct ib_device *dev, 1947219820Sjeff struct page *page, 1948219820Sjeff unsigned long offset, 1949219820Sjeff size_t size, 1950219820Sjeff enum dma_data_direction direction) 1951219820Sjeff{ 1952219820Sjeff if (dev->dma_ops) 1953219820Sjeff return dev->dma_ops->map_page(dev, page, offset, size, direction); 1954219820Sjeff return dma_map_page(dev->dma_device, page, offset, size, direction); 1955219820Sjeff} 1956219820Sjeff 1957219820Sjeff/** 1958219820Sjeff * ib_dma_unmap_page - Destroy a mapping created by ib_dma_map_page() 1959219820Sjeff * @dev: The device for which the DMA address was created 1960219820Sjeff * @addr: The DMA address 1961219820Sjeff * @size: The size of the region in bytes 1962219820Sjeff * @direction: The direction of the DMA 1963219820Sjeff */ 1964219820Sjeffstatic inline void ib_dma_unmap_page(struct ib_device *dev, 1965219820Sjeff u64 addr, size_t size, 1966219820Sjeff enum dma_data_direction direction) 1967219820Sjeff{ 1968219820Sjeff if (dev->dma_ops) 1969219820Sjeff dev->dma_ops->unmap_page(dev, addr, size, direction); 1970219820Sjeff else 1971219820Sjeff dma_unmap_page(dev->dma_device, addr, size, direction); 1972219820Sjeff} 1973219820Sjeff 1974219820Sjeff/** 1975219820Sjeff * ib_dma_map_sg - Map a scatter/gather list to DMA addresses 1976219820Sjeff * @dev: The device for which the DMA addresses are to be created 1977219820Sjeff * @sg: The array of scatter/gather entries 1978219820Sjeff * @nents: The number of scatter/gather entries 1979219820Sjeff * @direction: The direction of the DMA 1980219820Sjeff */ 1981219820Sjeffstatic inline int ib_dma_map_sg(struct ib_device *dev, 1982219820Sjeff struct scatterlist *sg, int nents, 1983219820Sjeff enum dma_data_direction direction) 1984219820Sjeff{ 1985219820Sjeff if (dev->dma_ops) 1986219820Sjeff return dev->dma_ops->map_sg(dev, sg, nents, direction); 1987219820Sjeff return dma_map_sg(dev->dma_device, sg, nents, direction); 1988219820Sjeff} 1989219820Sjeff 1990219820Sjeff/** 1991219820Sjeff * ib_dma_unmap_sg - Unmap a scatter/gather list of DMA addresses 1992219820Sjeff * @dev: The device for which the DMA addresses were created 1993219820Sjeff * @sg: The array of scatter/gather entries 1994219820Sjeff * @nents: The number of scatter/gather entries 1995219820Sjeff * @direction: The direction of the DMA 1996219820Sjeff */ 1997219820Sjeffstatic inline void ib_dma_unmap_sg(struct ib_device *dev, 1998219820Sjeff struct scatterlist *sg, int nents, 1999219820Sjeff enum dma_data_direction direction) 2000219820Sjeff{ 2001219820Sjeff if (dev->dma_ops) 2002219820Sjeff dev->dma_ops->unmap_sg(dev, sg, nents, direction); 2003219820Sjeff else 2004219820Sjeff dma_unmap_sg(dev->dma_device, sg, nents, direction); 2005219820Sjeff} 2006219820Sjeff 2007219820Sjeffstatic inline int ib_dma_map_sg_attrs(struct ib_device *dev, 2008219820Sjeff struct scatterlist *sg, int nents, 2009219820Sjeff enum dma_data_direction direction, 2010219820Sjeff struct dma_attrs *attrs) 2011219820Sjeff{ 2012219820Sjeff return dma_map_sg_attrs(dev->dma_device, sg, nents, direction, attrs); 2013219820Sjeff} 2014219820Sjeff 2015219820Sjeffstatic inline void ib_dma_unmap_sg_attrs(struct ib_device *dev, 2016219820Sjeff struct scatterlist *sg, int nents, 2017219820Sjeff enum dma_data_direction direction, 2018219820Sjeff struct dma_attrs *attrs) 2019219820Sjeff{ 2020219820Sjeff dma_unmap_sg_attrs(dev->dma_device, sg, nents, direction, attrs); 2021219820Sjeff} 2022219820Sjeff/** 2023219820Sjeff * ib_sg_dma_address - Return the DMA address from a scatter/gather entry 2024219820Sjeff * @dev: The device for which the DMA addresses were created 2025219820Sjeff * @sg: The scatter/gather entry 2026219820Sjeff */ 2027219820Sjeffstatic inline u64 ib_sg_dma_address(struct ib_device *dev, 2028219820Sjeff struct scatterlist *sg) 2029219820Sjeff{ 2030219820Sjeff if (dev->dma_ops) 2031219820Sjeff return dev->dma_ops->dma_address(dev, sg); 2032219820Sjeff return sg_dma_address(sg); 2033219820Sjeff} 2034219820Sjeff 2035219820Sjeff/** 2036219820Sjeff * ib_sg_dma_len - Return the DMA length from a scatter/gather entry 2037219820Sjeff * @dev: The device for which the DMA addresses were created 2038219820Sjeff * @sg: The scatter/gather entry 2039219820Sjeff */ 2040219820Sjeffstatic inline unsigned int ib_sg_dma_len(struct ib_device *dev, 2041219820Sjeff struct scatterlist *sg) 2042219820Sjeff{ 2043219820Sjeff if (dev->dma_ops) 2044219820Sjeff return dev->dma_ops->dma_len(dev, sg); 2045219820Sjeff return sg_dma_len(sg); 2046219820Sjeff} 2047219820Sjeff 2048219820Sjeff/** 2049219820Sjeff * ib_dma_sync_single_for_cpu - Prepare DMA region to be accessed by CPU 2050219820Sjeff * @dev: The device for which the DMA address was created 2051219820Sjeff * @addr: The DMA address 2052219820Sjeff * @size: The size of the region in bytes 2053219820Sjeff * @dir: The direction of the DMA 2054219820Sjeff */ 2055219820Sjeffstatic inline void ib_dma_sync_single_for_cpu(struct ib_device *dev, 2056219820Sjeff u64 addr, 2057219820Sjeff size_t size, 2058219820Sjeff enum dma_data_direction dir) 2059219820Sjeff{ 2060219820Sjeff if (dev->dma_ops) 2061219820Sjeff dev->dma_ops->sync_single_for_cpu(dev, addr, size, dir); 2062219820Sjeff else 2063219820Sjeff dma_sync_single_for_cpu(dev->dma_device, addr, size, dir); 2064219820Sjeff} 2065219820Sjeff 2066219820Sjeff/** 2067219820Sjeff * ib_dma_sync_single_for_device - Prepare DMA region to be accessed by device 2068219820Sjeff * @dev: The device for which the DMA address was created 2069219820Sjeff * @addr: The DMA address 2070219820Sjeff * @size: The size of the region in bytes 2071219820Sjeff * @dir: The direction of the DMA 2072219820Sjeff */ 2073219820Sjeffstatic inline void ib_dma_sync_single_for_device(struct ib_device *dev, 2074219820Sjeff u64 addr, 2075219820Sjeff size_t size, 2076219820Sjeff enum dma_data_direction dir) 2077219820Sjeff{ 2078219820Sjeff if (dev->dma_ops) 2079219820Sjeff dev->dma_ops->sync_single_for_device(dev, addr, size, dir); 2080219820Sjeff else 2081219820Sjeff dma_sync_single_for_device(dev->dma_device, addr, size, dir); 2082219820Sjeff} 2083219820Sjeff 2084219820Sjeff/** 2085219820Sjeff * ib_dma_alloc_coherent - Allocate memory and map it for DMA 2086219820Sjeff * @dev: The device for which the DMA address is requested 2087219820Sjeff * @size: The size of the region to allocate in bytes 2088219820Sjeff * @dma_handle: A pointer for returning the DMA address of the region 2089219820Sjeff * @flag: memory allocator flags 2090219820Sjeff */ 2091219820Sjeffstatic inline void *ib_dma_alloc_coherent(struct ib_device *dev, 2092219820Sjeff size_t size, 2093219820Sjeff u64 *dma_handle, 2094219820Sjeff gfp_t flag) 2095219820Sjeff{ 2096219820Sjeff if (dev->dma_ops) 2097219820Sjeff return dev->dma_ops->alloc_coherent(dev, size, dma_handle, flag); 2098219820Sjeff else { 2099219820Sjeff dma_addr_t handle; 2100219820Sjeff void *ret; 2101219820Sjeff 2102219820Sjeff ret = dma_alloc_coherent(dev->dma_device, size, &handle, flag); 2103219820Sjeff *dma_handle = handle; 2104219820Sjeff return ret; 2105219820Sjeff } 2106219820Sjeff} 2107219820Sjeff 2108219820Sjeff/** 2109219820Sjeff * ib_dma_free_coherent - Free memory allocated by ib_dma_alloc_coherent() 2110219820Sjeff * @dev: The device for which the DMA addresses were allocated 2111219820Sjeff * @size: The size of the region 2112219820Sjeff * @cpu_addr: the address returned by ib_dma_alloc_coherent() 2113219820Sjeff * @dma_handle: the DMA address returned by ib_dma_alloc_coherent() 2114219820Sjeff */ 2115219820Sjeffstatic inline void ib_dma_free_coherent(struct ib_device *dev, 2116219820Sjeff size_t size, void *cpu_addr, 2117219820Sjeff u64 dma_handle) 2118219820Sjeff{ 2119219820Sjeff if (dev->dma_ops) 2120219820Sjeff dev->dma_ops->free_coherent(dev, size, cpu_addr, dma_handle); 2121219820Sjeff else 2122219820Sjeff dma_free_coherent(dev->dma_device, size, cpu_addr, dma_handle); 2123219820Sjeff} 2124219820Sjeff 2125219820Sjeff/** 2126219820Sjeff * ib_reg_phys_mr - Prepares a virtually addressed memory region for use 2127219820Sjeff * by an HCA. 2128219820Sjeff * @pd: The protection domain associated assigned to the registered region. 2129219820Sjeff * @phys_buf_array: Specifies a list of physical buffers to use in the 2130219820Sjeff * memory region. 2131219820Sjeff * @num_phys_buf: Specifies the size of the phys_buf_array. 2132219820Sjeff * @mr_access_flags: Specifies the memory access rights. 2133219820Sjeff * @iova_start: The offset of the region's starting I/O virtual address. 2134219820Sjeff */ 2135219820Sjeffstruct ib_mr *ib_reg_phys_mr(struct ib_pd *pd, 2136219820Sjeff struct ib_phys_buf *phys_buf_array, 2137219820Sjeff int num_phys_buf, 2138219820Sjeff int mr_access_flags, 2139219820Sjeff u64 *iova_start); 2140219820Sjeff 2141219820Sjeff/** 2142219820Sjeff * ib_rereg_phys_mr - Modifies the attributes of an existing memory region. 2143219820Sjeff * Conceptually, this call performs the functions deregister memory region 2144219820Sjeff * followed by register physical memory region. Where possible, 2145219820Sjeff * resources are reused instead of deallocated and reallocated. 2146219820Sjeff * @mr: The memory region to modify. 2147219820Sjeff * @mr_rereg_mask: A bit-mask used to indicate which of the following 2148219820Sjeff * properties of the memory region are being modified. 2149219820Sjeff * @pd: If %IB_MR_REREG_PD is set in mr_rereg_mask, this field specifies 2150219820Sjeff * the new protection domain to associated with the memory region, 2151219820Sjeff * otherwise, this parameter is ignored. 2152219820Sjeff * @phys_buf_array: If %IB_MR_REREG_TRANS is set in mr_rereg_mask, this 2153219820Sjeff * field specifies a list of physical buffers to use in the new 2154219820Sjeff * translation, otherwise, this parameter is ignored. 2155219820Sjeff * @num_phys_buf: If %IB_MR_REREG_TRANS is set in mr_rereg_mask, this 2156219820Sjeff * field specifies the size of the phys_buf_array, otherwise, this 2157219820Sjeff * parameter is ignored. 2158219820Sjeff * @mr_access_flags: If %IB_MR_REREG_ACCESS is set in mr_rereg_mask, this 2159219820Sjeff * field specifies the new memory access rights, otherwise, this 2160219820Sjeff * parameter is ignored. 2161219820Sjeff * @iova_start: The offset of the region's starting I/O virtual address. 2162219820Sjeff */ 2163219820Sjeffint ib_rereg_phys_mr(struct ib_mr *mr, 2164219820Sjeff int mr_rereg_mask, 2165219820Sjeff struct ib_pd *pd, 2166219820Sjeff struct ib_phys_buf *phys_buf_array, 2167219820Sjeff int num_phys_buf, 2168219820Sjeff int mr_access_flags, 2169219820Sjeff u64 *iova_start); 2170219820Sjeff 2171219820Sjeff/** 2172219820Sjeff * ib_query_mr - Retrieves information about a specific memory region. 2173219820Sjeff * @mr: The memory region to retrieve information about. 2174219820Sjeff * @mr_attr: The attributes of the specified memory region. 2175219820Sjeff */ 2176219820Sjeffint ib_query_mr(struct ib_mr *mr, struct ib_mr_attr *mr_attr); 2177219820Sjeff 2178219820Sjeff/** 2179219820Sjeff * ib_dereg_mr - Deregisters a memory region and removes it from the 2180219820Sjeff * HCA translation table. 2181219820Sjeff * @mr: The memory region to deregister. 2182219820Sjeff */ 2183219820Sjeffint ib_dereg_mr(struct ib_mr *mr); 2184219820Sjeff 2185219820Sjeff/** 2186219820Sjeff * ib_alloc_fast_reg_mr - Allocates memory region usable with the 2187219820Sjeff * IB_WR_FAST_REG_MR send work request. 2188219820Sjeff * @pd: The protection domain associated with the region. 2189219820Sjeff * @max_page_list_len: requested max physical buffer list length to be 2190219820Sjeff * used with fast register work requests for this MR. 2191219820Sjeff */ 2192219820Sjeffstruct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len); 2193219820Sjeff 2194219820Sjeff/** 2195219820Sjeff * ib_alloc_fast_reg_page_list - Allocates a page list array 2196219820Sjeff * @device - ib device pointer. 2197219820Sjeff * @page_list_len - size of the page list array to be allocated. 2198219820Sjeff * 2199219820Sjeff * This allocates and returns a struct ib_fast_reg_page_list * and a 2200219820Sjeff * page_list array that is at least page_list_len in size. The actual 2201219820Sjeff * size is returned in max_page_list_len. The caller is responsible 2202219820Sjeff * for initializing the contents of the page_list array before posting 2203219820Sjeff * a send work request with the IB_WC_FAST_REG_MR opcode. 2204219820Sjeff * 2205219820Sjeff * The page_list array entries must be translated using one of the 2206219820Sjeff * ib_dma_*() functions just like the addresses passed to 2207219820Sjeff * ib_map_phys_fmr(). Once the ib_post_send() is issued, the struct 2208219820Sjeff * ib_fast_reg_page_list must not be modified by the caller until the 2209219820Sjeff * IB_WC_FAST_REG_MR work request completes. 2210219820Sjeff */ 2211219820Sjeffstruct ib_fast_reg_page_list *ib_alloc_fast_reg_page_list( 2212219820Sjeff struct ib_device *device, int page_list_len); 2213219820Sjeff 2214219820Sjeff/** 2215219820Sjeff * ib_free_fast_reg_page_list - Deallocates a previously allocated 2216219820Sjeff * page list array. 2217219820Sjeff * @page_list - struct ib_fast_reg_page_list pointer to be deallocated. 2218219820Sjeff */ 2219219820Sjeffvoid ib_free_fast_reg_page_list(struct ib_fast_reg_page_list *page_list); 2220219820Sjeff 2221219820Sjeff/** 2222219820Sjeff * ib_update_fast_reg_key - updates the key portion of the fast_reg MR 2223219820Sjeff * R_Key and L_Key. 2224219820Sjeff * @mr - struct ib_mr pointer to be updated. 2225219820Sjeff * @newkey - new key to be used. 2226219820Sjeff */ 2227219820Sjeffstatic inline void ib_update_fast_reg_key(struct ib_mr *mr, u8 newkey) 2228219820Sjeff{ 2229219820Sjeff mr->lkey = (mr->lkey & 0xffffff00) | newkey; 2230219820Sjeff mr->rkey = (mr->rkey & 0xffffff00) | newkey; 2231219820Sjeff} 2232219820Sjeff 2233219820Sjeff/** 2234219820Sjeff * ib_alloc_mw - Allocates a memory window. 2235219820Sjeff * @pd: The protection domain associated with the memory window. 2236219820Sjeff */ 2237219820Sjeffstruct ib_mw *ib_alloc_mw(struct ib_pd *pd); 2238219820Sjeff 2239219820Sjeff/** 2240219820Sjeff * ib_bind_mw - Posts a work request to the send queue of the specified 2241219820Sjeff * QP, which binds the memory window to the given address range and 2242219820Sjeff * remote access attributes. 2243219820Sjeff * @qp: QP to post the bind work request on. 2244219820Sjeff * @mw: The memory window to bind. 2245219820Sjeff * @mw_bind: Specifies information about the memory window, including 2246219820Sjeff * its address range, remote access rights, and associated memory region. 2247219820Sjeff */ 2248219820Sjeffstatic inline int ib_bind_mw(struct ib_qp *qp, 2249219820Sjeff struct ib_mw *mw, 2250219820Sjeff struct ib_mw_bind *mw_bind) 2251219820Sjeff{ 2252219820Sjeff /* XXX reference counting in corresponding MR? */ 2253219820Sjeff return mw->device->bind_mw ? 2254219820Sjeff mw->device->bind_mw(qp, mw, mw_bind) : 2255219820Sjeff -ENOSYS; 2256219820Sjeff} 2257219820Sjeff 2258219820Sjeff/** 2259219820Sjeff * ib_dealloc_mw - Deallocates a memory window. 2260219820Sjeff * @mw: The memory window to deallocate. 2261219820Sjeff */ 2262219820Sjeffint ib_dealloc_mw(struct ib_mw *mw); 2263219820Sjeff 2264219820Sjeff/** 2265219820Sjeff * ib_alloc_fmr - Allocates a unmapped fast memory region. 2266219820Sjeff * @pd: The protection domain associated with the unmapped region. 2267219820Sjeff * @mr_access_flags: Specifies the memory access rights. 2268219820Sjeff * @fmr_attr: Attributes of the unmapped region. 2269219820Sjeff * 2270219820Sjeff * A fast memory region must be mapped before it can be used as part of 2271219820Sjeff * a work request. 2272219820Sjeff */ 2273219820Sjeffstruct ib_fmr *ib_alloc_fmr(struct ib_pd *pd, 2274219820Sjeff int mr_access_flags, 2275219820Sjeff struct ib_fmr_attr *fmr_attr); 2276219820Sjeff 2277219820Sjeff/** 2278219820Sjeff * ib_map_phys_fmr - Maps a list of physical pages to a fast memory region. 2279219820Sjeff * @fmr: The fast memory region to associate with the pages. 2280219820Sjeff * @page_list: An array of physical pages to map to the fast memory region. 2281219820Sjeff * @list_len: The number of pages in page_list. 2282219820Sjeff * @iova: The I/O virtual address to use with the mapped region. 2283219820Sjeff */ 2284219820Sjeffstatic inline int ib_map_phys_fmr(struct ib_fmr *fmr, 2285219820Sjeff u64 *page_list, int list_len, 2286219820Sjeff u64 iova) 2287219820Sjeff{ 2288219820Sjeff return fmr->device->map_phys_fmr(fmr, page_list, list_len, iova); 2289219820Sjeff} 2290219820Sjeff 2291219820Sjeff/** 2292219820Sjeff * ib_unmap_fmr - Removes the mapping from a list of fast memory regions. 2293219820Sjeff * @fmr_list: A linked list of fast memory regions to unmap. 2294219820Sjeff */ 2295219820Sjeffint ib_unmap_fmr(struct list_head *fmr_list); 2296219820Sjeff 2297219820Sjeff/** 2298219820Sjeff * ib_dealloc_fmr - Deallocates a fast memory region. 2299219820Sjeff * @fmr: The fast memory region to deallocate. 2300219820Sjeff */ 2301219820Sjeffint ib_dealloc_fmr(struct ib_fmr *fmr); 2302219820Sjeff 2303219820Sjeff/** 2304219820Sjeff * ib_attach_mcast - Attaches the specified QP to a multicast group. 2305219820Sjeff * @qp: QP to attach to the multicast group. The QP must be type 2306219820Sjeff * IB_QPT_UD. 2307219820Sjeff * @gid: Multicast group GID. 2308219820Sjeff * @lid: Multicast group LID in host byte order. 2309219820Sjeff * 2310219820Sjeff * In order to send and receive multicast packets, subnet 2311219820Sjeff * administration must have created the multicast group and configured 2312219820Sjeff * the fabric appropriately. The port associated with the specified 2313219820Sjeff * QP must also be a member of the multicast group. 2314219820Sjeff */ 2315219820Sjeffint ib_attach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); 2316219820Sjeff 2317219820Sjeff/** 2318219820Sjeff * ib_detach_mcast - Detaches the specified QP from a multicast group. 2319219820Sjeff * @qp: QP to detach from the multicast group. 2320219820Sjeff * @gid: Multicast group GID. 2321219820Sjeff * @lid: Multicast group LID in host byte order. 2322219820Sjeff */ 2323219820Sjeffint ib_detach_mcast(struct ib_qp *qp, union ib_gid *gid, u16 lid); 2324219820Sjeff 2325219820Sjeff/** 2326255932Salfred * ib_alloc_xrcd - Allocates an XRC domain. 2327255932Salfred * @device: The device on which to allocate the XRC domain. 2328219820Sjeff */ 2329255932Salfredstruct ib_xrcd *ib_alloc_xrcd(struct ib_device *device); 2330219820Sjeff 2331219820Sjeff/** 2332255932Salfred * ib_dealloc_xrcd - Deallocates an XRC domain. 2333255932Salfred * @xrcd: The XRC domain to deallocate. 2334219820Sjeff */ 2335255932Salfredint ib_dealloc_xrcd(struct ib_xrcd *xrcd); 2336219820Sjeff 2337255932Salfredint ib_attach_flow(struct ib_qp *qp, struct ib_flow_spec *spec, int priority); 2338255932Salfredint ib_detach_flow(struct ib_qp *qp, struct ib_flow_spec *spec, int priority); 2339255932Salfred 2340219820Sjeff#endif /* IB_VERBS_H */ 2341