| /* |
| * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. |
| * Copyright (c) 2004, 2011-2012 Intel Corporation. All rights reserved. |
| * Copyright (c) 2005, 2006, 2007 Cisco Systems, Inc. All rights reserved. |
| * Copyright (c) 2005 PathScale, Inc. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #ifndef INFINIBAND_VERBS_H |
| #define INFINIBAND_VERBS_H |
| |
| #include <stdint.h> |
| #include <pthread.h> |
| #include <stddef.h> |
| #include <errno.h> |
| #include <string.h> |
| |
| #ifdef __cplusplus |
| # define BEGIN_C_DECLS extern "C" { |
| # define END_C_DECLS } |
| #else /* !__cplusplus */ |
| # define BEGIN_C_DECLS |
| # define END_C_DECLS |
| #endif /* __cplusplus */ |
| |
| #if __GNUC__ >= 3 |
| # define __attribute_const __attribute__((const)) |
| #else |
| # define __attribute_const |
| #endif |
| |
| BEGIN_C_DECLS |
| |
| union ibv_gid { |
| uint8_t raw[16]; |
| struct { |
| uint64_t subnet_prefix; |
| uint64_t interface_id; |
| } global; |
| }; |
| |
| #ifndef container_of |
| /** |
| * container_of - cast a member of a structure out to the containing structure |
| * @ptr: the pointer to the member. |
| * @type: the type of the container struct this is embedded in. |
| * @member: the name of the member within the struct. |
| * |
| */ |
| #define container_of(ptr, type, member) \ |
| ((type *) ((uint8_t *)(ptr) - offsetof(type, member))) |
| #endif |
| |
| #define vext_field_avail(type, fld, sz) (offsetof(type, fld) < (sz)) |
| |
| static void *__VERBS_ABI_IS_EXTENDED = ((uint8_t *) NULL) - 1; |
| |
| enum ibv_node_type { |
| IBV_NODE_UNKNOWN = -1, |
| IBV_NODE_CA = 1, |
| IBV_NODE_SWITCH, |
| IBV_NODE_ROUTER, |
| IBV_NODE_RNIC, |
| IBV_NODE_USNIC, |
| IBV_NODE_USNIC_UDP, |
| }; |
| |
| enum ibv_transport_type { |
| IBV_TRANSPORT_UNKNOWN = -1, |
| IBV_TRANSPORT_IB = 0, |
| IBV_TRANSPORT_IWARP, |
| IBV_TRANSPORT_USNIC, |
| IBV_TRANSPORT_USNIC_UDP, |
| }; |
| |
| enum ibv_device_cap_flags { |
| IBV_DEVICE_RESIZE_MAX_WR = 1, |
| IBV_DEVICE_BAD_PKEY_CNTR = 1 << 1, |
| IBV_DEVICE_BAD_QKEY_CNTR = 1 << 2, |
| IBV_DEVICE_RAW_MULTI = 1 << 3, |
| IBV_DEVICE_AUTO_PATH_MIG = 1 << 4, |
| IBV_DEVICE_CHANGE_PHY_PORT = 1 << 5, |
| IBV_DEVICE_UD_AV_PORT_ENFORCE = 1 << 6, |
| IBV_DEVICE_CURR_QP_STATE_MOD = 1 << 7, |
| IBV_DEVICE_SHUTDOWN_PORT = 1 << 8, |
| IBV_DEVICE_INIT_TYPE = 1 << 9, |
| IBV_DEVICE_PORT_ACTIVE_EVENT = 1 << 10, |
| IBV_DEVICE_SYS_IMAGE_GUID = 1 << 11, |
| IBV_DEVICE_RC_RNR_NAK_GEN = 1 << 12, |
| IBV_DEVICE_SRQ_RESIZE = 1 << 13, |
| IBV_DEVICE_N_NOTIFY_CQ = 1 << 14, |
| IBV_DEVICE_MEM_WINDOW = 1 << 17, |
| IBV_DEVICE_UD_IP_CSUM = 1 << 18, |
| IBV_DEVICE_XRC = 1 << 20, |
| IBV_DEVICE_MEM_MGT_EXTENSIONS = 1 << 21, |
| IBV_DEVICE_MEM_WINDOW_TYPE_2A = 1 << 23, |
| IBV_DEVICE_MEM_WINDOW_TYPE_2B = 1 << 24, |
| IBV_DEVICE_RC_IP_CSUM = 1 << 25, |
| IBV_DEVICE_RAW_IP_CSUM = 1 << 26, |
| IBV_DEVICE_MANAGED_FLOW_STEERING = 1 << 29 |
| }; |
| |
| /* |
| * Can't extended above ibv_device_cap_flags enum as in some systems/compilers |
| * enum range is limited to 4 bytes. |
| */ |
| #define IBV_DEVICE_RAW_SCATTER_FCS (1ULL << 34) |
| |
| enum ibv_atomic_cap { |
| IBV_ATOMIC_NONE, |
| IBV_ATOMIC_HCA, |
| IBV_ATOMIC_GLOB |
| }; |
| |
| struct ibv_device_attr { |
| char fw_ver[64]; |
| uint64_t node_guid; |
| uint64_t sys_image_guid; |
| uint64_t max_mr_size; |
| uint64_t page_size_cap; |
| uint32_t vendor_id; |
| uint32_t vendor_part_id; |
| uint32_t hw_ver; |
| int max_qp; |
| int max_qp_wr; |
| int device_cap_flags; |
| int max_sge; |
| int max_sge_rd; |
| int max_cq; |
| int max_cqe; |
| int max_mr; |
| int max_pd; |
| int max_qp_rd_atom; |
| int max_ee_rd_atom; |
| int max_res_rd_atom; |
| int max_qp_init_rd_atom; |
| int max_ee_init_rd_atom; |
| enum ibv_atomic_cap atomic_cap; |
| int max_ee; |
| int max_rdd; |
| int max_mw; |
| int max_raw_ipv6_qp; |
| int max_raw_ethy_qp; |
| int max_mcast_grp; |
| int max_mcast_qp_attach; |
| int max_total_mcast_qp_attach; |
| int max_ah; |
| int max_fmr; |
| int max_map_per_fmr; |
| int max_srq; |
| int max_srq_wr; |
| int max_srq_sge; |
| uint16_t max_pkeys; |
| uint8_t local_ca_ack_delay; |
| uint8_t phys_port_cnt; |
| }; |
| |
| /* An extensible input struct for possible future extensions of the |
| * ibv_query_device_ex verb. */ |
| struct ibv_query_device_ex_input { |
| uint32_t comp_mask; |
| }; |
| |
| enum ibv_odp_transport_cap_bits { |
| IBV_ODP_SUPPORT_SEND = 1 << 0, |
| IBV_ODP_SUPPORT_RECV = 1 << 1, |
| IBV_ODP_SUPPORT_WRITE = 1 << 2, |
| IBV_ODP_SUPPORT_READ = 1 << 3, |
| IBV_ODP_SUPPORT_ATOMIC = 1 << 4, |
| }; |
| |
| struct ibv_odp_caps { |
| uint64_t general_caps; |
| struct { |
| uint32_t rc_odp_caps; |
| uint32_t uc_odp_caps; |
| uint32_t ud_odp_caps; |
| } per_transport_caps; |
| }; |
| |
| enum ibv_odp_general_caps { |
| IBV_ODP_SUPPORT = 1 << 0, |
| }; |
| |
| struct ibv_tso_caps { |
| uint32_t max_tso; |
| uint32_t supported_qpts; |
| }; |
| |
| struct ibv_device_attr_ex { |
| struct ibv_device_attr orig_attr; |
| uint32_t comp_mask; |
| struct ibv_odp_caps odp_caps; |
| uint64_t completion_timestamp_mask; |
| uint64_t hca_core_clock; |
| uint64_t device_cap_flags_ex; |
| struct ibv_tso_caps tso_caps; |
| }; |
| |
| enum ibv_mtu { |
| IBV_MTU_256 = 1, |
| IBV_MTU_512 = 2, |
| IBV_MTU_1024 = 3, |
| IBV_MTU_2048 = 4, |
| IBV_MTU_4096 = 5 |
| }; |
| |
| enum ibv_port_state { |
| IBV_PORT_NOP = 0, |
| IBV_PORT_DOWN = 1, |
| IBV_PORT_INIT = 2, |
| IBV_PORT_ARMED = 3, |
| IBV_PORT_ACTIVE = 4, |
| IBV_PORT_ACTIVE_DEFER = 5 |
| }; |
| |
| enum { |
| IBV_LINK_LAYER_UNSPECIFIED, |
| IBV_LINK_LAYER_INFINIBAND, |
| IBV_LINK_LAYER_ETHERNET, |
| }; |
| |
| enum ibv_port_cap_flags { |
| IBV_PORT_SM = 1 << 1, |
| IBV_PORT_NOTICE_SUP = 1 << 2, |
| IBV_PORT_TRAP_SUP = 1 << 3, |
| IBV_PORT_OPT_IPD_SUP = 1 << 4, |
| IBV_PORT_AUTO_MIGR_SUP = 1 << 5, |
| IBV_PORT_SL_MAP_SUP = 1 << 6, |
| IBV_PORT_MKEY_NVRAM = 1 << 7, |
| IBV_PORT_PKEY_NVRAM = 1 << 8, |
| IBV_PORT_LED_INFO_SUP = 1 << 9, |
| IBV_PORT_SYS_IMAGE_GUID_SUP = 1 << 11, |
| IBV_PORT_PKEY_SW_EXT_PORT_TRAP_SUP = 1 << 12, |
| IBV_PORT_EXTENDED_SPEEDS_SUP = 1 << 14, |
| IBV_PORT_CM_SUP = 1 << 16, |
| IBV_PORT_SNMP_TUNNEL_SUP = 1 << 17, |
| IBV_PORT_REINIT_SUP = 1 << 18, |
| IBV_PORT_DEVICE_MGMT_SUP = 1 << 19, |
| IBV_PORT_VENDOR_CLASS_SUP = 1 << 20, |
| IBV_PORT_DR_NOTICE_SUP = 1 << 21, |
| IBV_PORT_CAP_MASK_NOTICE_SUP = 1 << 22, |
| IBV_PORT_BOOT_MGMT_SUP = 1 << 23, |
| IBV_PORT_LINK_LATENCY_SUP = 1 << 24, |
| IBV_PORT_CLIENT_REG_SUP = 1 << 25, |
| IBV_PORT_IP_BASED_GIDS = 1 << 26 |
| }; |
| |
| struct ibv_port_attr { |
| enum ibv_port_state state; |
| enum ibv_mtu max_mtu; |
| enum ibv_mtu active_mtu; |
| int gid_tbl_len; |
| uint32_t port_cap_flags; |
| uint32_t max_msg_sz; |
| uint32_t bad_pkey_cntr; |
| uint32_t qkey_viol_cntr; |
| uint16_t pkey_tbl_len; |
| uint16_t lid; |
| uint16_t sm_lid; |
| uint8_t lmc; |
| uint8_t max_vl_num; |
| uint8_t sm_sl; |
| uint8_t subnet_timeout; |
| uint8_t init_type_reply; |
| uint8_t active_width; |
| uint8_t active_speed; |
| uint8_t phys_state; |
| uint8_t link_layer; |
| uint8_t reserved; |
| }; |
| |
| enum ibv_event_type { |
| IBV_EVENT_CQ_ERR, |
| IBV_EVENT_QP_FATAL, |
| IBV_EVENT_QP_REQ_ERR, |
| IBV_EVENT_QP_ACCESS_ERR, |
| IBV_EVENT_COMM_EST, |
| IBV_EVENT_SQ_DRAINED, |
| IBV_EVENT_PATH_MIG, |
| IBV_EVENT_PATH_MIG_ERR, |
| IBV_EVENT_DEVICE_FATAL, |
| IBV_EVENT_PORT_ACTIVE, |
| IBV_EVENT_PORT_ERR, |
| IBV_EVENT_LID_CHANGE, |
| IBV_EVENT_PKEY_CHANGE, |
| IBV_EVENT_SM_CHANGE, |
| IBV_EVENT_SRQ_ERR, |
| IBV_EVENT_SRQ_LIMIT_REACHED, |
| IBV_EVENT_QP_LAST_WQE_REACHED, |
| IBV_EVENT_CLIENT_REREGISTER, |
| IBV_EVENT_GID_CHANGE, |
| }; |
| |
| struct ibv_async_event { |
| union { |
| struct ibv_cq *cq; |
| struct ibv_qp *qp; |
| struct ibv_srq *srq; |
| int port_num; |
| } element; |
| enum ibv_event_type event_type; |
| }; |
| |
| enum ibv_wc_status { |
| IBV_WC_SUCCESS, |
| IBV_WC_LOC_LEN_ERR, |
| IBV_WC_LOC_QP_OP_ERR, |
| IBV_WC_LOC_EEC_OP_ERR, |
| IBV_WC_LOC_PROT_ERR, |
| IBV_WC_WR_FLUSH_ERR, |
| IBV_WC_MW_BIND_ERR, |
| IBV_WC_BAD_RESP_ERR, |
| IBV_WC_LOC_ACCESS_ERR, |
| IBV_WC_REM_INV_REQ_ERR, |
| IBV_WC_REM_ACCESS_ERR, |
| IBV_WC_REM_OP_ERR, |
| IBV_WC_RETRY_EXC_ERR, |
| IBV_WC_RNR_RETRY_EXC_ERR, |
| IBV_WC_LOC_RDD_VIOL_ERR, |
| IBV_WC_REM_INV_RD_REQ_ERR, |
| IBV_WC_REM_ABORT_ERR, |
| IBV_WC_INV_EECN_ERR, |
| IBV_WC_INV_EEC_STATE_ERR, |
| IBV_WC_FATAL_ERR, |
| IBV_WC_RESP_TIMEOUT_ERR, |
| IBV_WC_GENERAL_ERR |
| }; |
| const char *ibv_wc_status_str(enum ibv_wc_status status); |
| |
| enum ibv_wc_opcode { |
| IBV_WC_SEND, |
| IBV_WC_RDMA_WRITE, |
| IBV_WC_RDMA_READ, |
| IBV_WC_COMP_SWAP, |
| IBV_WC_FETCH_ADD, |
| IBV_WC_BIND_MW, |
| IBV_WC_LOCAL_INV, |
| IBV_WC_TSO, |
| /* |
| * Set value of IBV_WC_RECV so consumers can test if a completion is a |
| * receive by testing (opcode & IBV_WC_RECV). |
| */ |
| IBV_WC_RECV = 1 << 7, |
| IBV_WC_RECV_RDMA_WITH_IMM |
| }; |
| |
| enum { |
| IBV_WC_IP_CSUM_OK_SHIFT = 2 |
| }; |
| |
| enum ibv_create_cq_wc_flags { |
| IBV_WC_EX_WITH_BYTE_LEN = 1 << 0, |
| IBV_WC_EX_WITH_IMM = 1 << 1, |
| IBV_WC_EX_WITH_QP_NUM = 1 << 2, |
| IBV_WC_EX_WITH_SRC_QP = 1 << 3, |
| IBV_WC_EX_WITH_SLID = 1 << 4, |
| IBV_WC_EX_WITH_SL = 1 << 5, |
| IBV_WC_EX_WITH_DLID_PATH_BITS = 1 << 6, |
| IBV_WC_EX_WITH_COMPLETION_TIMESTAMP = 1 << 7, |
| }; |
| |
| enum { |
| IBV_WC_STANDARD_FLAGS = IBV_WC_EX_WITH_BYTE_LEN | |
| IBV_WC_EX_WITH_IMM | |
| IBV_WC_EX_WITH_QP_NUM | |
| IBV_WC_EX_WITH_SRC_QP | |
| IBV_WC_EX_WITH_SLID | |
| IBV_WC_EX_WITH_SL | |
| IBV_WC_EX_WITH_DLID_PATH_BITS |
| }; |
| |
| enum { |
| IBV_CREATE_CQ_SUP_WC_FLAGS = IBV_WC_STANDARD_FLAGS | |
| IBV_WC_EX_WITH_COMPLETION_TIMESTAMP |
| }; |
| |
| enum ibv_wc_flags { |
| IBV_WC_GRH = 1 << 0, |
| IBV_WC_WITH_IMM = 1 << 1, |
| IBV_WC_IP_CSUM_OK = 1 << IBV_WC_IP_CSUM_OK_SHIFT, |
| IBV_WC_WITH_INV = 1 << 3 |
| }; |
| |
| struct ibv_wc { |
| uint64_t wr_id; |
| enum ibv_wc_status status; |
| enum ibv_wc_opcode opcode; |
| uint32_t vendor_err; |
| uint32_t byte_len; |
| /* When (wc_flags & IBV_WC_WITH_IMM): Immediate data in network byte order. |
| * When (wc_flags & IBV_WC_WITH_INV): Stores the invalidated rkey. |
| */ |
| uint32_t imm_data; |
| uint32_t qp_num; |
| uint32_t src_qp; |
| int wc_flags; |
| uint16_t pkey_index; |
| uint16_t slid; |
| uint8_t sl; |
| uint8_t dlid_path_bits; |
| }; |
| |
| enum ibv_access_flags { |
| IBV_ACCESS_LOCAL_WRITE = 1, |
| IBV_ACCESS_REMOTE_WRITE = (1<<1), |
| IBV_ACCESS_REMOTE_READ = (1<<2), |
| IBV_ACCESS_REMOTE_ATOMIC = (1<<3), |
| IBV_ACCESS_MW_BIND = (1<<4), |
| IBV_ACCESS_ZERO_BASED = (1<<5), |
| IBV_ACCESS_ON_DEMAND = (1<<6), |
| }; |
| |
| struct ibv_mw_bind_info { |
| struct ibv_mr *mr; |
| uint64_t addr; |
| uint64_t length; |
| int mw_access_flags; /* use ibv_access_flags */ |
| }; |
| |
| struct ibv_pd { |
| struct ibv_context *context; |
| uint32_t handle; |
| }; |
| |
| enum ibv_xrcd_init_attr_mask { |
| IBV_XRCD_INIT_ATTR_FD = 1 << 0, |
| IBV_XRCD_INIT_ATTR_OFLAGS = 1 << 1, |
| IBV_XRCD_INIT_ATTR_RESERVED = 1 << 2 |
| }; |
| |
| struct ibv_xrcd_init_attr { |
| uint32_t comp_mask; |
| int fd; |
| int oflags; |
| }; |
| |
| struct ibv_xrcd { |
| struct ibv_context *context; |
| }; |
| |
| enum ibv_rereg_mr_flags { |
| IBV_REREG_MR_CHANGE_TRANSLATION = (1 << 0), |
| IBV_REREG_MR_CHANGE_PD = (1 << 1), |
| IBV_REREG_MR_CHANGE_ACCESS = (1 << 2), |
| IBV_REREG_MR_KEEP_VALID = (1 << 3), |
| IBV_REREG_MR_FLAGS_SUPPORTED = ((IBV_REREG_MR_KEEP_VALID << 1) - 1) |
| }; |
| |
| struct ibv_mr { |
| struct ibv_context *context; |
| struct ibv_pd *pd; |
| void *addr; |
| size_t length; |
| uint32_t handle; |
| uint32_t lkey; |
| uint32_t rkey; |
| }; |
| |
| enum ibv_mw_type { |
| IBV_MW_TYPE_1 = 1, |
| IBV_MW_TYPE_2 = 2 |
| }; |
| |
| struct ibv_mw { |
| struct ibv_context *context; |
| struct ibv_pd *pd; |
| uint32_t rkey; |
| uint32_t handle; |
| enum ibv_mw_type type; |
| }; |
| |
| struct ibv_global_route { |
| union ibv_gid dgid; |
| uint32_t flow_label; |
| uint8_t sgid_index; |
| uint8_t hop_limit; |
| uint8_t traffic_class; |
| }; |
| |
| struct ibv_grh { |
| uint32_t version_tclass_flow; |
| uint16_t paylen; |
| uint8_t next_hdr; |
| uint8_t hop_limit; |
| union ibv_gid sgid; |
| union ibv_gid dgid; |
| }; |
| |
| enum ibv_rate { |
| IBV_RATE_MAX = 0, |
| IBV_RATE_2_5_GBPS = 2, |
| IBV_RATE_5_GBPS = 5, |
| IBV_RATE_10_GBPS = 3, |
| IBV_RATE_20_GBPS = 6, |
| IBV_RATE_30_GBPS = 4, |
| IBV_RATE_40_GBPS = 7, |
| IBV_RATE_60_GBPS = 8, |
| IBV_RATE_80_GBPS = 9, |
| IBV_RATE_120_GBPS = 10, |
| IBV_RATE_14_GBPS = 11, |
| IBV_RATE_56_GBPS = 12, |
| IBV_RATE_112_GBPS = 13, |
| IBV_RATE_168_GBPS = 14, |
| IBV_RATE_25_GBPS = 15, |
| IBV_RATE_100_GBPS = 16, |
| IBV_RATE_200_GBPS = 17, |
| IBV_RATE_300_GBPS = 18 |
| }; |
| |
| /** |
| * ibv_rate_to_mult - Convert the IB rate enum to a multiple of the |
| * base rate of 2.5 Gbit/sec. For example, IBV_RATE_5_GBPS will be |
| * converted to 2, since 5 Gbit/sec is 2 * 2.5 Gbit/sec. |
| * @rate: rate to convert. |
| */ |
| int ibv_rate_to_mult(enum ibv_rate rate) __attribute_const; |
| |
| /** |
| * mult_to_ibv_rate - Convert a multiple of 2.5 Gbit/sec to an IB rate enum. |
| * @mult: multiple to convert. |
| */ |
| enum ibv_rate mult_to_ibv_rate(int mult) __attribute_const; |
| |
| /** |
| * ibv_rate_to_mbps - Convert the IB rate enum to Mbit/sec. |
| * For example, IBV_RATE_5_GBPS will return the value 5000. |
| * @rate: rate to convert. |
| */ |
| int ibv_rate_to_mbps(enum ibv_rate rate) __attribute_const; |
| |
| /** |
| * mbps_to_ibv_rate - Convert a Mbit/sec value to an IB rate enum. |
| * @mbps: value to convert. |
| */ |
| enum ibv_rate mbps_to_ibv_rate(int mbps) __attribute_const; |
| |
| struct ibv_ah_attr { |
| struct ibv_global_route grh; |
| uint16_t dlid; |
| uint8_t sl; |
| uint8_t src_path_bits; |
| uint8_t static_rate; |
| uint8_t is_global; |
| uint8_t port_num; |
| }; |
| |
| enum ibv_srq_attr_mask { |
| IBV_SRQ_MAX_WR = 1 << 0, |
| IBV_SRQ_LIMIT = 1 << 1 |
| }; |
| |
| struct ibv_srq_attr { |
| uint32_t max_wr; |
| uint32_t max_sge; |
| uint32_t srq_limit; |
| }; |
| |
| struct ibv_srq_init_attr { |
| void *srq_context; |
| struct ibv_srq_attr attr; |
| }; |
| |
| enum ibv_srq_type { |
| IBV_SRQT_BASIC, |
| IBV_SRQT_XRC |
| }; |
| |
| enum ibv_srq_init_attr_mask { |
| IBV_SRQ_INIT_ATTR_TYPE = 1 << 0, |
| IBV_SRQ_INIT_ATTR_PD = 1 << 1, |
| IBV_SRQ_INIT_ATTR_XRCD = 1 << 2, |
| IBV_SRQ_INIT_ATTR_CQ = 1 << 3, |
| IBV_SRQ_INIT_ATTR_RESERVED = 1 << 4 |
| }; |
| |
| struct ibv_srq_init_attr_ex { |
| void *srq_context; |
| struct ibv_srq_attr attr; |
| |
| uint32_t comp_mask; |
| enum ibv_srq_type srq_type; |
| struct ibv_pd *pd; |
| struct ibv_xrcd *xrcd; |
| struct ibv_cq *cq; |
| }; |
| |
| enum ibv_wq_type { |
| IBV_WQT_RQ |
| }; |
| |
| enum ibv_wq_init_attr_mask { |
| IBV_WQ_INIT_ATTR_RESERVED = 1 << 0, |
| }; |
| |
| struct ibv_wq_init_attr { |
| void *wq_context; |
| enum ibv_wq_type wq_type; |
| uint32_t max_wr; |
| uint32_t max_sge; |
| struct ibv_pd *pd; |
| struct ibv_cq *cq; |
| uint32_t comp_mask; |
| }; |
| |
| enum ibv_wq_state { |
| IBV_WQS_RESET, |
| IBV_WQS_RDY, |
| IBV_WQS_ERR, |
| IBV_WQS_UNKNOWN |
| }; |
| |
| enum ibv_wq_attr_mask { |
| IBV_WQ_ATTR_STATE = 1 << 0, |
| IBV_WQ_ATTR_CURR_STATE = 1 << 1, |
| IBV_WQ_ATTR_RESERVED = 1 << 2 |
| }; |
| |
| struct ibv_wq_attr { |
| /* enum ibv_wq_attr_mask */ |
| uint32_t attr_mask; |
| /* Move the WQ to this state */ |
| enum ibv_wq_state wq_state; |
| /* Assume this is the current WQ state */ |
| enum ibv_wq_state curr_wq_state; |
| }; |
| |
| enum ibv_qp_type { |
| IBV_QPT_RC = 2, |
| IBV_QPT_UC, |
| IBV_QPT_UD, |
| IBV_QPT_RAW_PACKET = 8, |
| IBV_QPT_XRC_SEND = 9, |
| IBV_QPT_XRC_RECV |
| }; |
| |
| struct ibv_qp_cap { |
| uint32_t max_send_wr; |
| uint32_t max_recv_wr; |
| uint32_t max_send_sge; |
| uint32_t max_recv_sge; |
| uint32_t max_inline_data; |
| }; |
| |
| struct ibv_qp_init_attr { |
| void *qp_context; |
| struct ibv_cq *send_cq; |
| struct ibv_cq *recv_cq; |
| struct ibv_srq *srq; |
| struct ibv_qp_cap cap; |
| enum ibv_qp_type qp_type; |
| int sq_sig_all; |
| }; |
| |
| enum ibv_qp_init_attr_mask { |
| IBV_QP_INIT_ATTR_PD = 1 << 0, |
| IBV_QP_INIT_ATTR_XRCD = 1 << 1, |
| IBV_QP_INIT_ATTR_CREATE_FLAGS = 1 << 2, |
| IBV_QP_INIT_ATTR_MAX_TSO_HEADER = 1 << 3, |
| IBV_QP_INIT_ATTR_RESERVED = 1 << 4 |
| }; |
| |
| enum ibv_qp_create_flags { |
| IBV_QP_CREATE_BLOCK_SELF_MCAST_LB = 1 << 1, |
| IBV_QP_CREATE_SCATTER_FCS = 1 << 8, |
| }; |
| |
| struct ibv_qp_init_attr_ex { |
| void *qp_context; |
| struct ibv_cq *send_cq; |
| struct ibv_cq *recv_cq; |
| struct ibv_srq *srq; |
| struct ibv_qp_cap cap; |
| enum ibv_qp_type qp_type; |
| int sq_sig_all; |
| |
| uint32_t comp_mask; |
| struct ibv_pd *pd; |
| struct ibv_xrcd *xrcd; |
| uint32_t create_flags; |
| uint16_t max_tso_header; |
| }; |
| |
| enum ibv_qp_open_attr_mask { |
| IBV_QP_OPEN_ATTR_NUM = 1 << 0, |
| IBV_QP_OPEN_ATTR_XRCD = 1 << 1, |
| IBV_QP_OPEN_ATTR_CONTEXT = 1 << 2, |
| IBV_QP_OPEN_ATTR_TYPE = 1 << 3, |
| IBV_QP_OPEN_ATTR_RESERVED = 1 << 4 |
| }; |
| |
| struct ibv_qp_open_attr { |
| uint32_t comp_mask; |
| uint32_t qp_num; |
| struct ibv_xrcd *xrcd; |
| void *qp_context; |
| enum ibv_qp_type qp_type; |
| }; |
| |
| enum ibv_qp_attr_mask { |
| IBV_QP_STATE = 1 << 0, |
| IBV_QP_CUR_STATE = 1 << 1, |
| IBV_QP_EN_SQD_ASYNC_NOTIFY = 1 << 2, |
| IBV_QP_ACCESS_FLAGS = 1 << 3, |
| IBV_QP_PKEY_INDEX = 1 << 4, |
| IBV_QP_PORT = 1 << 5, |
| IBV_QP_QKEY = 1 << 6, |
| IBV_QP_AV = 1 << 7, |
| IBV_QP_PATH_MTU = 1 << 8, |
| IBV_QP_TIMEOUT = 1 << 9, |
| IBV_QP_RETRY_CNT = 1 << 10, |
| IBV_QP_RNR_RETRY = 1 << 11, |
| IBV_QP_RQ_PSN = 1 << 12, |
| IBV_QP_MAX_QP_RD_ATOMIC = 1 << 13, |
| IBV_QP_ALT_PATH = 1 << 14, |
| IBV_QP_MIN_RNR_TIMER = 1 << 15, |
| IBV_QP_SQ_PSN = 1 << 16, |
| IBV_QP_MAX_DEST_RD_ATOMIC = 1 << 17, |
| IBV_QP_PATH_MIG_STATE = 1 << 18, |
| IBV_QP_CAP = 1 << 19, |
| IBV_QP_DEST_QPN = 1 << 20 |
| }; |
| |
| enum ibv_qp_state { |
| IBV_QPS_RESET, |
| IBV_QPS_INIT, |
| IBV_QPS_RTR, |
| IBV_QPS_RTS, |
| IBV_QPS_SQD, |
| IBV_QPS_SQE, |
| IBV_QPS_ERR, |
| IBV_QPS_UNKNOWN |
| }; |
| |
| enum ibv_mig_state { |
| IBV_MIG_MIGRATED, |
| IBV_MIG_REARM, |
| IBV_MIG_ARMED |
| }; |
| |
| struct ibv_qp_attr { |
| enum ibv_qp_state qp_state; |
| enum ibv_qp_state cur_qp_state; |
| enum ibv_mtu path_mtu; |
| enum ibv_mig_state path_mig_state; |
| uint32_t qkey; |
| uint32_t rq_psn; |
| uint32_t sq_psn; |
| uint32_t dest_qp_num; |
| int qp_access_flags; |
| struct ibv_qp_cap cap; |
| struct ibv_ah_attr ah_attr; |
| struct ibv_ah_attr alt_ah_attr; |
| uint16_t pkey_index; |
| uint16_t alt_pkey_index; |
| uint8_t en_sqd_async_notify; |
| uint8_t sq_draining; |
| uint8_t max_rd_atomic; |
| uint8_t max_dest_rd_atomic; |
| uint8_t min_rnr_timer; |
| uint8_t port_num; |
| uint8_t timeout; |
| uint8_t retry_cnt; |
| uint8_t rnr_retry; |
| uint8_t alt_port_num; |
| uint8_t alt_timeout; |
| }; |
| |
| enum ibv_wr_opcode { |
| IBV_WR_RDMA_WRITE, |
| IBV_WR_RDMA_WRITE_WITH_IMM, |
| IBV_WR_SEND, |
| IBV_WR_SEND_WITH_IMM, |
| IBV_WR_RDMA_READ, |
| IBV_WR_ATOMIC_CMP_AND_SWP, |
| IBV_WR_ATOMIC_FETCH_AND_ADD, |
| IBV_WR_LOCAL_INV, |
| IBV_WR_BIND_MW, |
| IBV_WR_SEND_WITH_INV, |
| IBV_WR_TSO, |
| }; |
| |
| enum ibv_send_flags { |
| IBV_SEND_FENCE = 1 << 0, |
| IBV_SEND_SIGNALED = 1 << 1, |
| IBV_SEND_SOLICITED = 1 << 2, |
| IBV_SEND_INLINE = 1 << 3, |
| IBV_SEND_IP_CSUM = 1 << 4 |
| }; |
| |
| struct ibv_sge { |
| uint64_t addr; |
| uint32_t length; |
| uint32_t lkey; |
| }; |
| |
| struct ibv_send_wr { |
| uint64_t wr_id; |
| struct ibv_send_wr *next; |
| struct ibv_sge *sg_list; |
| int num_sge; |
| enum ibv_wr_opcode opcode; |
| int send_flags; |
| uint32_t imm_data; /* in network byte order */ |
| union { |
| struct { |
| uint64_t remote_addr; |
| uint32_t rkey; |
| } rdma; |
| struct { |
| uint64_t remote_addr; |
| uint64_t compare_add; |
| uint64_t swap; |
| uint32_t rkey; |
| } atomic; |
| struct { |
| struct ibv_ah *ah; |
| uint32_t remote_qpn; |
| uint32_t remote_qkey; |
| } ud; |
| } wr; |
| union { |
| struct { |
| uint32_t remote_srqn; |
| } xrc; |
| } qp_type; |
| union { |
| struct { |
| struct ibv_mw *mw; |
| uint32_t rkey; |
| struct ibv_mw_bind_info bind_info; |
| } bind_mw; |
| struct { |
| void *hdr; |
| uint16_t hdr_sz; |
| uint16_t mss; |
| } tso; |
| }; |
| }; |
| |
| struct ibv_recv_wr { |
| uint64_t wr_id; |
| struct ibv_recv_wr *next; |
| struct ibv_sge *sg_list; |
| int num_sge; |
| }; |
| |
| struct ibv_mw_bind { |
| uint64_t wr_id; |
| int send_flags; |
| struct ibv_mw_bind_info bind_info; |
| }; |
| |
| struct ibv_srq { |
| struct ibv_context *context; |
| void *srq_context; |
| struct ibv_pd *pd; |
| uint32_t handle; |
| |
| pthread_mutex_t mutex; |
| pthread_cond_t cond; |
| uint32_t events_completed; |
| }; |
| |
| /* |
| * Work Queue. QP can be created without internal WQs "packaged" inside it, |
| * this QP can be configured to use "external" WQ object as its |
| * receive/send queue. |
| * WQ associated (many to one) with Completion Queue it owns WQ properties |
| * (PD, WQ size etc). |
| * WQ of type IBV_WQT_RQ: |
| * - Contains receive WQEs, in this case its PD serves as scatter as well. |
| * - Exposes post receive function to be used to post a list of work |
| * requests (WRs) to its receive queue. |
| */ |
| struct ibv_wq { |
| struct ibv_context *context; |
| void *wq_context; |
| struct ibv_pd *pd; |
| struct ibv_cq *cq; |
| uint32_t wq_num; |
| uint32_t handle; |
| enum ibv_wq_state state; |
| enum ibv_wq_type wq_type; |
| int (*post_recv)(struct ibv_wq *current, |
| struct ibv_recv_wr *recv_wr, |
| struct ibv_recv_wr **bad_recv_wr); |
| pthread_mutex_t mutex; |
| pthread_cond_t cond; |
| uint32_t events_completed; |
| uint32_t comp_mask; |
| }; |
| |
| struct ibv_qp { |
| struct ibv_context *context; |
| void *qp_context; |
| struct ibv_pd *pd; |
| struct ibv_cq *send_cq; |
| struct ibv_cq *recv_cq; |
| struct ibv_srq *srq; |
| uint32_t handle; |
| uint32_t qp_num; |
| enum ibv_qp_state state; |
| enum ibv_qp_type qp_type; |
| |
| pthread_mutex_t mutex; |
| pthread_cond_t cond; |
| uint32_t events_completed; |
| }; |
| |
| struct ibv_comp_channel { |
| struct ibv_context *context; |
| int fd; |
| int refcnt; |
| }; |
| |
| struct ibv_cq { |
| struct ibv_context *context; |
| struct ibv_comp_channel *channel; |
| void *cq_context; |
| uint32_t handle; |
| int cqe; |
| |
| pthread_mutex_t mutex; |
| pthread_cond_t cond; |
| uint32_t comp_events_completed; |
| uint32_t async_events_completed; |
| }; |
| |
| struct ibv_poll_cq_attr { |
| uint32_t comp_mask; |
| }; |
| |
| struct ibv_cq_ex { |
| struct ibv_context *context; |
| struct ibv_comp_channel *channel; |
| void *cq_context; |
| uint32_t handle; |
| int cqe; |
| |
| pthread_mutex_t mutex; |
| pthread_cond_t cond; |
| uint32_t comp_events_completed; |
| uint32_t async_events_completed; |
| |
| uint32_t comp_mask; |
| enum ibv_wc_status status; |
| uint64_t wr_id; |
| int (*start_poll)(struct ibv_cq_ex *current, |
| struct ibv_poll_cq_attr *attr); |
| int (*next_poll)(struct ibv_cq_ex *current); |
| void (*end_poll)(struct ibv_cq_ex *current); |
| enum ibv_wc_opcode (*read_opcode)(struct ibv_cq_ex *current); |
| uint32_t (*read_vendor_err)(struct ibv_cq_ex *current); |
| uint32_t (*read_byte_len)(struct ibv_cq_ex *current); |
| uint32_t (*read_imm_data)(struct ibv_cq_ex *current); |
| uint32_t (*read_qp_num)(struct ibv_cq_ex *current); |
| uint32_t (*read_src_qp)(struct ibv_cq_ex *current); |
| int (*read_wc_flags)(struct ibv_cq_ex *current); |
| uint32_t (*read_slid)(struct ibv_cq_ex *current); |
| uint8_t (*read_sl)(struct ibv_cq_ex *current); |
| uint8_t (*read_dlid_path_bits)(struct ibv_cq_ex *current); |
| uint64_t (*read_completion_ts)(struct ibv_cq_ex *current); |
| }; |
| |
| static inline struct ibv_cq *ibv_cq_ex_to_cq(struct ibv_cq_ex *cq) |
| { |
| return (struct ibv_cq *)cq; |
| } |
| |
| static inline int ibv_start_poll(struct ibv_cq_ex *cq, |
| struct ibv_poll_cq_attr *attr) |
| { |
| return cq->start_poll(cq, attr); |
| } |
| |
| static inline int ibv_next_poll(struct ibv_cq_ex *cq) |
| { |
| return cq->next_poll(cq); |
| } |
| |
| static inline void ibv_end_poll(struct ibv_cq_ex *cq) |
| { |
| cq->end_poll(cq); |
| } |
| |
| static inline enum ibv_wc_opcode ibv_wc_read_opcode(struct ibv_cq_ex *cq) |
| { |
| return cq->read_opcode(cq); |
| } |
| |
| static inline uint32_t ibv_wc_read_vendor_err(struct ibv_cq_ex *cq) |
| { |
| return cq->read_vendor_err(cq); |
| } |
| |
| static inline uint32_t ibv_wc_read_byte_len(struct ibv_cq_ex *cq) |
| { |
| return cq->read_byte_len(cq); |
| } |
| |
| static inline uint32_t ibv_wc_read_imm_data(struct ibv_cq_ex *cq) |
| { |
| return cq->read_imm_data(cq); |
| } |
| |
| static inline uint32_t ibv_wc_read_qp_num(struct ibv_cq_ex *cq) |
| { |
| return cq->read_qp_num(cq); |
| } |
| |
| static inline uint32_t ibv_wc_read_src_qp(struct ibv_cq_ex *cq) |
| { |
| return cq->read_src_qp(cq); |
| } |
| |
| static inline int ibv_wc_read_wc_flags(struct ibv_cq_ex *cq) |
| { |
| return cq->read_wc_flags(cq); |
| } |
| |
| static inline uint32_t ibv_wc_read_slid(struct ibv_cq_ex *cq) |
| { |
| return cq->read_slid(cq); |
| } |
| |
| static inline uint8_t ibv_wc_read_sl(struct ibv_cq_ex *cq) |
| { |
| return cq->read_sl(cq); |
| } |
| |
| static inline uint8_t ibv_wc_read_dlid_path_bits(struct ibv_cq_ex *cq) |
| { |
| return cq->read_dlid_path_bits(cq); |
| } |
| |
| static inline uint64_t ibv_wc_read_completion_ts(struct ibv_cq_ex *cq) |
| { |
| return cq->read_completion_ts(cq); |
| } |
| |
| static inline int ibv_post_wq_recv(struct ibv_wq *wq, |
| struct ibv_recv_wr *recv_wr, |
| struct ibv_recv_wr **bad_recv_wr) |
| { |
| return wq->post_recv(wq, recv_wr, bad_recv_wr); |
| } |
| |
| struct ibv_ah { |
| struct ibv_context *context; |
| struct ibv_pd *pd; |
| uint32_t handle; |
| }; |
| |
| enum ibv_flow_flags { |
| IBV_FLOW_ATTR_FLAGS_ALLOW_LOOP_BACK = 1 << 0, |
| IBV_FLOW_ATTR_FLAGS_DONT_TRAP = 1 << 1, |
| }; |
| |
| enum ibv_flow_attr_type { |
| /* steering according to rule specifications */ |
| IBV_FLOW_ATTR_NORMAL = 0x0, |
| /* default unicast and multicast rule - |
| * receive all Eth traffic which isn't steered to any QP |
| */ |
| IBV_FLOW_ATTR_ALL_DEFAULT = 0x1, |
| /* default multicast rule - |
| * receive all Eth multicast traffic which isn't steered to any QP |
| */ |
| IBV_FLOW_ATTR_MC_DEFAULT = 0x2, |
| }; |
| |
| enum ibv_flow_spec_type { |
| IBV_FLOW_SPEC_ETH = 0x20, |
| IBV_FLOW_SPEC_IPV4 = 0x30, |
| IBV_FLOW_SPEC_TCP = 0x40, |
| IBV_FLOW_SPEC_UDP = 0x41, |
| }; |
| |
| struct ibv_flow_eth_filter { |
| uint8_t dst_mac[6]; |
| uint8_t src_mac[6]; |
| uint16_t ether_type; |
| /* |
| * same layout as 802.1q: prio 3, cfi 1, vlan id 12 |
| */ |
| uint16_t vlan_tag; |
| }; |
| |
| struct ibv_flow_spec_eth { |
| enum ibv_flow_spec_type type; |
| uint16_t size; |
| struct ibv_flow_eth_filter val; |
| struct ibv_flow_eth_filter mask; |
| }; |
| |
| struct ibv_flow_ipv4_filter { |
| uint32_t src_ip; |
| uint32_t dst_ip; |
| }; |
| |
| struct ibv_flow_spec_ipv4 { |
| enum ibv_flow_spec_type type; |
| uint16_t size; |
| struct ibv_flow_ipv4_filter val; |
| struct ibv_flow_ipv4_filter mask; |
| }; |
| |
| struct ibv_flow_tcp_udp_filter { |
| uint16_t dst_port; |
| uint16_t src_port; |
| }; |
| |
| struct ibv_flow_spec_tcp_udp { |
| enum ibv_flow_spec_type type; |
| uint16_t size; |
| struct ibv_flow_tcp_udp_filter val; |
| struct ibv_flow_tcp_udp_filter mask; |
| }; |
| |
| struct ibv_flow_spec { |
| union { |
| struct { |
| enum ibv_flow_spec_type type; |
| uint16_t size; |
| } hdr; |
| struct ibv_flow_spec_eth eth; |
| struct ibv_flow_spec_ipv4 ipv4; |
| struct ibv_flow_spec_tcp_udp tcp_udp; |
| }; |
| }; |
| |
| struct ibv_flow_attr { |
| uint32_t comp_mask; |
| enum ibv_flow_attr_type type; |
| uint16_t size; |
| uint16_t priority; |
| uint8_t num_of_specs; |
| uint8_t port; |
| uint32_t flags; |
| /* Following are the optional layers according to user request |
| * struct ibv_flow_spec_xxx [L2] |
| * struct ibv_flow_spec_yyy [L3/L4] |
| */ |
| }; |
| |
| struct ibv_flow { |
| uint32_t comp_mask; |
| struct ibv_context *context; |
| uint32_t handle; |
| }; |
| |
| struct ibv_device; |
| struct ibv_context; |
| |
| struct ibv_device_ops { |
| struct ibv_context * (*alloc_context)(struct ibv_device *device, int cmd_fd); |
| void (*free_context)(struct ibv_context *context); |
| }; |
| |
| enum { |
| IBV_SYSFS_NAME_MAX = 64, |
| IBV_SYSFS_PATH_MAX = 256 |
| }; |
| |
| struct ibv_device { |
| struct ibv_device_ops ops; |
| enum ibv_node_type node_type; |
| enum ibv_transport_type transport_type; |
| /* Name of underlying kernel IB device, eg "mthca0" */ |
| char name[IBV_SYSFS_NAME_MAX]; |
| /* Name of uverbs device, eg "uverbs0" */ |
| char dev_name[IBV_SYSFS_NAME_MAX]; |
| /* Path to infiniband_verbs class device in sysfs */ |
| char dev_path[IBV_SYSFS_PATH_MAX]; |
| /* Path to infiniband class device in sysfs */ |
| char ibdev_path[IBV_SYSFS_PATH_MAX]; |
| }; |
| |
| struct verbs_device { |
| struct ibv_device device; /* Must be first */ |
| size_t sz; |
| size_t size_of_context; |
| int (*init_context)(struct verbs_device *device, |
| struct ibv_context *ctx, int cmd_fd); |
| void (*uninit_context)(struct verbs_device *device, |
| struct ibv_context *ctx); |
| /* future fields added here */ |
| }; |
| |
| struct ibv_context_ops { |
| int (*query_device)(struct ibv_context *context, |
| struct ibv_device_attr *device_attr); |
| int (*query_port)(struct ibv_context *context, uint8_t port_num, |
| struct ibv_port_attr *port_attr); |
| struct ibv_pd * (*alloc_pd)(struct ibv_context *context); |
| int (*dealloc_pd)(struct ibv_pd *pd); |
| struct ibv_mr * (*reg_mr)(struct ibv_pd *pd, void *addr, size_t length, |
| int access); |
| int (*rereg_mr)(struct ibv_mr *mr, |
| int flags, |
| struct ibv_pd *pd, void *addr, |
| size_t length, |
| int access); |
| int (*dereg_mr)(struct ibv_mr *mr); |
| struct ibv_mw * (*alloc_mw)(struct ibv_pd *pd, enum ibv_mw_type type); |
| int (*bind_mw)(struct ibv_qp *qp, struct ibv_mw *mw, |
| struct ibv_mw_bind *mw_bind); |
| int (*dealloc_mw)(struct ibv_mw *mw); |
| struct ibv_cq * (*create_cq)(struct ibv_context *context, int cqe, |
| struct ibv_comp_channel *channel, |
| int comp_vector); |
| int (*poll_cq)(struct ibv_cq *cq, int num_entries, struct ibv_wc *wc); |
| int (*req_notify_cq)(struct ibv_cq *cq, int solicited_only); |
| void (*cq_event)(struct ibv_cq *cq); |
| int (*resize_cq)(struct ibv_cq *cq, int cqe); |
| int (*destroy_cq)(struct ibv_cq *cq); |
| struct ibv_srq * (*create_srq)(struct ibv_pd *pd, |
| struct ibv_srq_init_attr *srq_init_attr); |
| int (*modify_srq)(struct ibv_srq *srq, |
| struct ibv_srq_attr *srq_attr, |
| int srq_attr_mask); |
| int (*query_srq)(struct ibv_srq *srq, |
| struct ibv_srq_attr *srq_attr); |
| int (*destroy_srq)(struct ibv_srq *srq); |
| int (*post_srq_recv)(struct ibv_srq *srq, |
| struct ibv_recv_wr *recv_wr, |
| struct ibv_recv_wr **bad_recv_wr); |
| struct ibv_qp * (*create_qp)(struct ibv_pd *pd, struct ibv_qp_init_attr *attr); |
| int (*query_qp)(struct ibv_qp *qp, struct ibv_qp_attr *attr, |
| int attr_mask, |
| struct ibv_qp_init_attr *init_attr); |
| int (*modify_qp)(struct ibv_qp *qp, struct ibv_qp_attr *attr, |
| int attr_mask); |
| int (*destroy_qp)(struct ibv_qp *qp); |
| int (*post_send)(struct ibv_qp *qp, struct ibv_send_wr *wr, |
| struct ibv_send_wr **bad_wr); |
| int (*post_recv)(struct ibv_qp *qp, struct ibv_recv_wr *wr, |
| struct ibv_recv_wr **bad_wr); |
| struct ibv_ah * (*create_ah)(struct ibv_pd *pd, struct ibv_ah_attr *attr); |
| int (*destroy_ah)(struct ibv_ah *ah); |
| int (*attach_mcast)(struct ibv_qp *qp, const union ibv_gid *gid, |
| uint16_t lid); |
| int (*detach_mcast)(struct ibv_qp *qp, const union ibv_gid *gid, |
| uint16_t lid); |
| void (*async_event)(struct ibv_async_event *event); |
| }; |
| |
| struct ibv_context { |
| struct ibv_device *device; |
| struct ibv_context_ops ops; |
| int cmd_fd; |
| int async_fd; |
| int num_comp_vectors; |
| pthread_mutex_t mutex; |
| void *abi_compat; |
| }; |
| |
| enum ibv_cq_init_attr_mask { |
| IBV_CQ_INIT_ATTR_MASK_FLAGS = 1 << 0, |
| IBV_CQ_INIT_ATTR_MASK_RESERVED = 1 << 1 |
| }; |
| |
| enum ibv_create_cq_attr_flags { |
| IBV_CREATE_CQ_ATTR_SINGLE_THREADED = 1 << 0, |
| IBV_CREATE_CQ_ATTR_RESERVED = 1 << 1, |
| }; |
| |
| struct ibv_cq_init_attr_ex { |
| /* Minimum number of entries required for CQ */ |
| uint32_t cqe; |
| /* Consumer-supplied context returned for completion events */ |
| void *cq_context; |
| /* Completion channel where completion events will be queued. |
| * May be NULL if completion events will not be used. |
| */ |
| struct ibv_comp_channel *channel; |
| /* Completion vector used to signal completion events. |
| * Must be < context->num_comp_vectors. |
| */ |
| uint32_t comp_vector; |
| /* Or'ed bit of enum ibv_create_cq_wc_flags. */ |
| uint64_t wc_flags; |
| /* compatibility mask (extended verb). Or'd flags of |
| * enum ibv_cq_init_attr_mask |
| */ |
| uint32_t comp_mask; |
| /* create cq attr flags - one or more flags from |
| * enum ibv_create_cq_attr_flags |
| */ |
| uint32_t flags; |
| }; |
| |
| enum ibv_values_mask { |
| IBV_VALUES_MASK_RAW_CLOCK = 1 << 0, |
| IBV_VALUES_MASK_RESERVED = 1 << 1 |
| }; |
| |
| struct ibv_values_ex { |
| uint32_t comp_mask; |
| struct timespec raw_clock; |
| }; |
| |
| enum verbs_context_mask { |
| VERBS_CONTEXT_XRCD = 1 << 0, |
| VERBS_CONTEXT_SRQ = 1 << 1, |
| VERBS_CONTEXT_QP = 1 << 2, |
| VERBS_CONTEXT_CREATE_FLOW = 1 << 3, |
| VERBS_CONTEXT_DESTROY_FLOW = 1 << 4, |
| VERBS_CONTEXT_RESERVED = 1 << 5 |
| }; |
| |
| struct verbs_context { |
| /* "grows up" - new fields go here */ |
| int (*destroy_wq)(struct ibv_wq *wq); |
| int (*modify_wq)(struct ibv_wq *wq, struct ibv_wq_attr *wq_attr); |
| struct ibv_wq * (*create_wq)(struct ibv_context *context, |
| struct ibv_wq_init_attr *wq_init_attr); |
| int (*query_rt_values)(struct ibv_context *context, |
| struct ibv_values_ex *values); |
| struct ibv_cq_ex *(*create_cq_ex)(struct ibv_context *context, |
| struct ibv_cq_init_attr_ex *init_attr); |
| struct verbs_ex_private *priv; |
| int (*query_device_ex)(struct ibv_context *context, |
| const struct ibv_query_device_ex_input *input, |
| struct ibv_device_attr_ex *attr, |
| size_t attr_size); |
| int (*ibv_destroy_flow) (struct ibv_flow *flow); |
| void (*ABI_placeholder2) (void); /* DO NOT COPY THIS GARBAGE */ |
| struct ibv_flow * (*ibv_create_flow) (struct ibv_qp *qp, |
| struct ibv_flow_attr *flow_attr); |
| void (*ABI_placeholder1) (void); /* DO NOT COPY THIS GARBAGE */ |
| struct ibv_qp *(*open_qp)(struct ibv_context *context, |
| struct ibv_qp_open_attr *attr); |
| struct ibv_qp *(*create_qp_ex)(struct ibv_context *context, |
| struct ibv_qp_init_attr_ex *qp_init_attr_ex); |
| int (*get_srq_num)(struct ibv_srq *srq, uint32_t *srq_num); |
| struct ibv_srq * (*create_srq_ex)(struct ibv_context *context, |
| struct ibv_srq_init_attr_ex *srq_init_attr_ex); |
| struct ibv_xrcd * (*open_xrcd)(struct ibv_context *context, |
| struct ibv_xrcd_init_attr *xrcd_init_attr); |
| int (*close_xrcd)(struct ibv_xrcd *xrcd); |
| uint64_t has_comp_mask; |
| size_t sz; /* Must be immediately before struct ibv_context */ |
| struct ibv_context context; /* Must be last field in the struct */ |
| }; |
| |
| static inline struct verbs_context *verbs_get_ctx(struct ibv_context *ctx) |
| { |
| return (ctx->abi_compat != __VERBS_ABI_IS_EXTENDED) ? |
| NULL : container_of(ctx, struct verbs_context, context); |
| } |
| |
| #define verbs_get_ctx_op(ctx, op) ({ \ |
| struct verbs_context *vctx = verbs_get_ctx(ctx); \ |
| (!vctx || (vctx->sz < sizeof(*vctx) - offsetof(struct verbs_context, op)) || \ |
| !vctx->op) ? NULL : vctx; }) |
| |
| #define verbs_set_ctx_op(_vctx, op, ptr) ({ \ |
| struct verbs_context *vctx = _vctx; \ |
| if (vctx && (vctx->sz >= sizeof(*vctx) - offsetof(struct verbs_context, op))) \ |
| vctx->op = ptr; }) |
| |
| static inline struct verbs_device *verbs_get_device( |
| const struct ibv_device *dev) |
| { |
| return (dev->ops.alloc_context) ? |
| NULL : container_of(dev, struct verbs_device, device); |
| } |
| |
| /** |
| * ibv_get_device_list - Get list of IB devices currently available |
| * @num_devices: optional. if non-NULL, set to the number of devices |
| * returned in the array. |
| * |
| * Return a NULL-terminated array of IB devices. The array can be |
| * released with ibv_free_device_list(). |
| */ |
| struct ibv_device **ibv_get_device_list(int *num_devices); |
| |
| /** |
| * ibv_free_device_list - Free list from ibv_get_device_list() |
| * |
| * Free an array of devices returned from ibv_get_device_list(). Once |
| * the array is freed, pointers to devices that were not opened with |
| * ibv_open_device() are no longer valid. Client code must open all |
| * devices it intends to use before calling ibv_free_device_list(). |
| */ |
| void ibv_free_device_list(struct ibv_device **list); |
| |
| /** |
| * ibv_get_device_name - Return kernel device name |
| */ |
| const char *ibv_get_device_name(struct ibv_device *device); |
| |
| /** |
| * ibv_get_device_guid - Return device's node GUID |
| */ |
| uint64_t ibv_get_device_guid(struct ibv_device *device); |
| |
| /** |
| * ibv_open_device - Initialize device for use |
| */ |
| struct ibv_context *ibv_open_device(struct ibv_device *device); |
| |
| /** |
| * ibv_close_device - Release device |
| */ |
| int ibv_close_device(struct ibv_context *context); |
| |
| /** |
| * ibv_get_async_event - Get next async event |
| * @event: Pointer to use to return async event |
| * |
| * All async events returned by ibv_get_async_event() must eventually |
| * be acknowledged with ibv_ack_async_event(). |
| */ |
| int ibv_get_async_event(struct ibv_context *context, |
| struct ibv_async_event *event); |
| |
| /** |
| * ibv_ack_async_event - Acknowledge an async event |
| * @event: Event to be acknowledged. |
| * |
| * All async events which are returned by ibv_get_async_event() must |
| * be acknowledged. To avoid races, destroying an object (CQ, SRQ or |
| * QP) will wait for all affiliated events to be acknowledged, so |
| * there should be a one-to-one correspondence between acks and |
| * successful gets. |
| */ |
| void ibv_ack_async_event(struct ibv_async_event *event); |
| |
| /** |
| * ibv_query_device - Get device properties |
| */ |
| int ibv_query_device(struct ibv_context *context, |
| struct ibv_device_attr *device_attr); |
| |
| /** |
| * ibv_query_port - Get port properties |
| */ |
| int ibv_query_port(struct ibv_context *context, uint8_t port_num, |
| struct ibv_port_attr *port_attr); |
| |
| static inline int ___ibv_query_port(struct ibv_context *context, |
| uint8_t port_num, |
| struct ibv_port_attr *port_attr) |
| { |
| /* For compatibility when running with old libibverbs */ |
| port_attr->link_layer = IBV_LINK_LAYER_UNSPECIFIED; |
| port_attr->reserved = 0; |
| |
| return ibv_query_port(context, port_num, port_attr); |
| } |
| |
| #define ibv_query_port(context, port_num, port_attr) \ |
| ___ibv_query_port(context, port_num, port_attr) |
| |
| /** |
| * ibv_query_gid - Get a GID table entry |
| */ |
| int ibv_query_gid(struct ibv_context *context, uint8_t port_num, |
| int index, union ibv_gid *gid); |
| |
| /** |
| * ibv_query_pkey - Get a P_Key table entry |
| */ |
| int ibv_query_pkey(struct ibv_context *context, uint8_t port_num, |
| int index, uint16_t *pkey); |
| |
| /** |
| * ibv_alloc_pd - Allocate a protection domain |
| */ |
| struct ibv_pd *ibv_alloc_pd(struct ibv_context *context); |
| |
| /** |
| * ibv_dealloc_pd - Free a protection domain |
| */ |
| int ibv_dealloc_pd(struct ibv_pd *pd); |
| |
| static inline struct ibv_flow *ibv_create_flow(struct ibv_qp *qp, |
| struct ibv_flow_attr *flow) |
| { |
| struct verbs_context *vctx = verbs_get_ctx_op(qp->context, |
| ibv_create_flow); |
| if (!vctx || !vctx->ibv_create_flow) |
| return NULL; |
| |
| return vctx->ibv_create_flow(qp, flow); |
| } |
| |
| static inline int ibv_destroy_flow(struct ibv_flow *flow_id) |
| { |
| struct verbs_context *vctx = verbs_get_ctx_op(flow_id->context, |
| ibv_destroy_flow); |
| if (!vctx || !vctx->ibv_destroy_flow) |
| return -ENOSYS; |
| return vctx->ibv_destroy_flow(flow_id); |
| } |
| |
| /** |
| * ibv_open_xrcd - Open an extended connection domain |
| */ |
| static inline struct ibv_xrcd * |
| ibv_open_xrcd(struct ibv_context *context, struct ibv_xrcd_init_attr *xrcd_init_attr) |
| { |
| struct verbs_context *vctx = verbs_get_ctx_op(context, open_xrcd); |
| if (!vctx) { |
| errno = ENOSYS; |
| return NULL; |
| } |
| return vctx->open_xrcd(context, xrcd_init_attr); |
| } |
| |
| /** |
| * ibv_close_xrcd - Close an extended connection domain |
| */ |
| static inline int ibv_close_xrcd(struct ibv_xrcd *xrcd) |
| { |
| struct verbs_context *vctx = verbs_get_ctx(xrcd->context); |
| return vctx->close_xrcd(xrcd); |
| } |
| |
| /** |
| * ibv_reg_mr - Register a memory region |
| */ |
| struct ibv_mr *ibv_reg_mr(struct ibv_pd *pd, void *addr, |
| size_t length, int access); |
| |
| |
| enum ibv_rereg_mr_err_code { |
| /* Old MR is valid, invalid input */ |
| IBV_REREG_MR_ERR_INPUT = -1, |
| /* Old MR is valid, failed via dont fork on new address range */ |
| IBV_REREG_MR_ERR_DONT_FORK_NEW = -2, |
| /* New MR is valid, failed via do fork on old address range */ |
| IBV_REREG_MR_ERR_DO_FORK_OLD = -3, |
| /* MR shouldn't be used, command error */ |
| IBV_REREG_MR_ERR_CMD = -4, |
| /* MR shouldn't be used, command error, invalid fork state on new address range */ |
| IBV_REREG_MR_ERR_CMD_AND_DO_FORK_NEW = -5, |
| }; |
| |
| /** |
| * ibv_rereg_mr - Re-Register a memory region |
| */ |
| int ibv_rereg_mr(struct ibv_mr *mr, int flags, |
| struct ibv_pd *pd, void *addr, |
| size_t length, int access); |
| /** |
| * ibv_dereg_mr - Deregister a memory region |
| */ |
| int ibv_dereg_mr(struct ibv_mr *mr); |
| |
| /** |
| * ibv_alloc_mw - Allocate a memory window |
| */ |
| static inline struct ibv_mw *ibv_alloc_mw(struct ibv_pd *pd, |
| enum ibv_mw_type type) |
| { |
| struct ibv_mw *mw; |
| |
| if (!pd->context->ops.alloc_mw) { |
| errno = ENOSYS; |
| return NULL; |
| } |
| |
| mw = pd->context->ops.alloc_mw(pd, type); |
| return mw; |
| } |
| |
| /** |
| * ibv_dealloc_mw - Free a memory window |
| */ |
| static inline int ibv_dealloc_mw(struct ibv_mw *mw) |
| { |
| return mw->context->ops.dealloc_mw(mw); |
| } |
| |
| /** |
| * ibv_inc_rkey - Increase the 8 lsb in the given rkey |
| */ |
| static inline uint32_t ibv_inc_rkey(uint32_t rkey) |
| { |
| const uint32_t mask = 0x000000ff; |
| uint8_t newtag = (uint8_t)((rkey + 1) & mask); |
| |
| return (rkey & ~mask) | newtag; |
| } |
| |
| /** |
| * ibv_bind_mw - Bind a memory window to a region |
| */ |
| static inline int ibv_bind_mw(struct ibv_qp *qp, struct ibv_mw *mw, |
| struct ibv_mw_bind *mw_bind) |
| { |
| if (mw->type != IBV_MW_TYPE_1) |
| return EINVAL; |
| |
| return mw->context->ops.bind_mw(qp, mw, mw_bind); |
| } |
| |
| /** |
| * ibv_create_comp_channel - Create a completion event channel |
| */ |
| struct ibv_comp_channel *ibv_create_comp_channel(struct ibv_context *context); |
| |
| /** |
| * ibv_destroy_comp_channel - Destroy a completion event channel |
| */ |
| int ibv_destroy_comp_channel(struct ibv_comp_channel *channel); |
| |
| /** |
| * ibv_create_cq - Create a completion queue |
| * @context - Context CQ will be attached to |
| * @cqe - Minimum number of entries required for CQ |
| * @cq_context - Consumer-supplied context returned for completion events |
| * @channel - Completion channel where completion events will be queued. |
| * May be NULL if completion events will not be used. |
| * @comp_vector - Completion vector used to signal completion events. |
| * Must be >= 0 and < context->num_comp_vectors. |
| */ |
| struct ibv_cq *ibv_create_cq(struct ibv_context *context, int cqe, |
| void *cq_context, |
| struct ibv_comp_channel *channel, |
| int comp_vector); |
| |
| /** |
| * ibv_create_cq_ex - Create a completion queue |
| * @context - Context CQ will be attached to |
| * @cq_attr - Attributes to create the CQ with |
| */ |
| static inline |
| struct ibv_cq_ex *ibv_create_cq_ex(struct ibv_context *context, |
| struct ibv_cq_init_attr_ex *cq_attr) |
| { |
| struct verbs_context *vctx = verbs_get_ctx_op(context, create_cq_ex); |
| |
| if (!vctx) { |
| errno = ENOSYS; |
| return NULL; |
| } |
| |
| if (cq_attr->comp_mask & ~(IBV_CQ_INIT_ATTR_MASK_RESERVED - 1)) { |
| errno = EINVAL; |
| return NULL; |
| } |
| |
| return vctx->create_cq_ex(context, cq_attr); |
| } |
| |
| /** |
| * ibv_resize_cq - Modifies the capacity of the CQ. |
| * @cq: The CQ to resize. |
| * @cqe: The minimum size of the CQ. |
| * |
| * Users can examine the cq structure to determine the actual CQ size. |
| */ |
| int ibv_resize_cq(struct ibv_cq *cq, int cqe); |
| |
| /** |
| * ibv_destroy_cq - Destroy a completion queue |
| */ |
| int ibv_destroy_cq(struct ibv_cq *cq); |
| |
| /** |
| * ibv_get_cq_event - Read next CQ event |
| * @channel: Channel to get next event from. |
| * @cq: Used to return pointer to CQ. |
| * @cq_context: Used to return consumer-supplied CQ context. |
| * |
| * All completion events returned by ibv_get_cq_event() must |
| * eventually be acknowledged with ibv_ack_cq_events(). |
| */ |
| int ibv_get_cq_event(struct ibv_comp_channel *channel, |
| struct ibv_cq **cq, void **cq_context); |
| |
| /** |
| * ibv_ack_cq_events - Acknowledge CQ completion events |
| * @cq: CQ to acknowledge events for |
| * @nevents: Number of events to acknowledge. |
| * |
| * All completion events which are returned by ibv_get_cq_event() must |
| * be acknowledged. To avoid races, ibv_destroy_cq() will wait for |
| * all completion events to be acknowledged, so there should be a |
| * one-to-one correspondence between acks and successful gets. An |
| * application may accumulate multiple completion events and |
| * acknowledge them in a single call to ibv_ack_cq_events() by passing |
| * the number of events to ack in @nevents. |
| */ |
| void ibv_ack_cq_events(struct ibv_cq *cq, unsigned int nevents); |
| |
| /** |
| * ibv_poll_cq - Poll a CQ for work completions |
| * @cq:the CQ being polled |
| * @num_entries:maximum number of completions to return |
| * @wc:array of at least @num_entries of &struct ibv_wc where completions |
| * will be returned |
| * |
| * Poll a CQ for (possibly multiple) completions. If the return value |
| * is < 0, an error occurred. If the return value is >= 0, it is the |
| * number of completions returned. If the return value is |
| * non-negative and strictly less than num_entries, then the CQ was |
| * emptied. |
| */ |
| static inline int ibv_poll_cq(struct ibv_cq *cq, int num_entries, struct ibv_wc *wc) |
| { |
| return cq->context->ops.poll_cq(cq, num_entries, wc); |
| } |
| |
| /** |
| * ibv_req_notify_cq - Request completion notification on a CQ. An |
| * event will be added to the completion channel associated with the |
| * CQ when an entry is added to the CQ. |
| * @cq: The completion queue to request notification for. |
| * @solicited_only: If non-zero, an event will be generated only for |
| * the next solicited CQ entry. If zero, any CQ entry, solicited or |
| * not, will generate an event. |
| */ |
| static inline int ibv_req_notify_cq(struct ibv_cq *cq, int solicited_only) |
| { |
| return cq->context->ops.req_notify_cq(cq, solicited_only); |
| } |
| |
| /** |
| * ibv_create_srq - Creates a SRQ associated with the specified protection |
| * domain. |
| * @pd: The protection domain associated with the SRQ. |
| * @srq_init_attr: A list of initial attributes required to create the SRQ. |
| * |
| * srq_attr->max_wr and srq_attr->max_sge are read the determine the |
| * requested size of the SRQ, and set to the actual values allocated |
| * on return. If ibv_create_srq() succeeds, then max_wr and max_sge |
| * will always be at least as large as the requested values. |
| */ |
| struct ibv_srq *ibv_create_srq(struct ibv_pd *pd, |
| struct ibv_srq_init_attr *srq_init_attr); |
| |
| static inline struct ibv_srq * |
| ibv_create_srq_ex(struct ibv_context *context, |
| struct ibv_srq_init_attr_ex *srq_init_attr_ex) |
| { |
| struct verbs_context *vctx; |
| uint32_t mask = srq_init_attr_ex->comp_mask; |
| |
| if (!(mask & ~(IBV_SRQ_INIT_ATTR_PD | IBV_SRQ_INIT_ATTR_TYPE)) && |
| (mask & IBV_SRQ_INIT_ATTR_PD) && |
| (!(mask & IBV_SRQ_INIT_ATTR_TYPE) || |
| (srq_init_attr_ex->srq_type == IBV_SRQT_BASIC))) |
| return ibv_create_srq(srq_init_attr_ex->pd, |
| (struct ibv_srq_init_attr *)srq_init_attr_ex); |
| |
| vctx = verbs_get_ctx_op(context, create_srq_ex); |
| if (!vctx) { |
| errno = ENOSYS; |
| return NULL; |
| } |
| return vctx->create_srq_ex(context, srq_init_attr_ex); |
| } |
| |
| /** |
| * ibv_modify_srq - Modifies the attributes for the specified SRQ. |
| * @srq: The SRQ to modify. |
| * @srq_attr: On input, specifies the SRQ attributes to modify. On output, |
| * the current values of selected SRQ attributes are returned. |
| * @srq_attr_mask: A bit-mask used to specify which attributes of the SRQ |
| * are being modified. |
| * |
| * The mask may contain IBV_SRQ_MAX_WR to resize the SRQ and/or |
| * IBV_SRQ_LIMIT to set the SRQ's limit and request notification when |
| * the number of receives queued drops below the limit. |
| */ |
| int ibv_modify_srq(struct ibv_srq *srq, |
| struct ibv_srq_attr *srq_attr, |
| int srq_attr_mask); |
| |
| /** |
| * ibv_query_srq - Returns the attribute list and current values for the |
| * specified SRQ. |
| * @srq: The SRQ to query. |
| * @srq_attr: The attributes of the specified SRQ. |
| */ |
| int ibv_query_srq(struct ibv_srq *srq, struct ibv_srq_attr *srq_attr); |
| |
| static inline int ibv_get_srq_num(struct ibv_srq *srq, uint32_t *srq_num) |
| { |
| struct verbs_context *vctx = verbs_get_ctx_op(srq->context, get_srq_num); |
| |
| if (!vctx) |
| return ENOSYS; |
| |
| return vctx->get_srq_num(srq, srq_num); |
| } |
| |
| /** |
| * ibv_destroy_srq - Destroys the specified SRQ. |
| * @srq: The SRQ to destroy. |
| */ |
| int ibv_destroy_srq(struct ibv_srq *srq); |
| |
| /** |
| * ibv_post_srq_recv - Posts a list of work requests to the specified SRQ. |
| * @srq: The SRQ to post the work request on. |
| * @recv_wr: A list of work requests to post on the receive queue. |
| * @bad_recv_wr: On an immediate failure, this parameter will reference |
| * the work request that failed to be posted on the QP. |
| */ |
| static inline int ibv_post_srq_recv(struct ibv_srq *srq, |
| struct ibv_recv_wr *recv_wr, |
| struct ibv_recv_wr **bad_recv_wr) |
| { |
| return srq->context->ops.post_srq_recv(srq, recv_wr, bad_recv_wr); |
| } |
| |
| /** |
| * ibv_create_qp - Create a queue pair. |
| */ |
| struct ibv_qp *ibv_create_qp(struct ibv_pd *pd, |
| struct ibv_qp_init_attr *qp_init_attr); |
| |
| static inline struct ibv_qp * |
| ibv_create_qp_ex(struct ibv_context *context, struct ibv_qp_init_attr_ex *qp_init_attr_ex) |
| { |
| struct verbs_context *vctx; |
| uint32_t mask = qp_init_attr_ex->comp_mask; |
| |
| if (mask == IBV_QP_INIT_ATTR_PD) |
| return ibv_create_qp(qp_init_attr_ex->pd, |
| (struct ibv_qp_init_attr *)qp_init_attr_ex); |
| |
| vctx = verbs_get_ctx_op(context, create_qp_ex); |
| if (!vctx) { |
| errno = ENOSYS; |
| return NULL; |
| } |
| return vctx->create_qp_ex(context, qp_init_attr_ex); |
| } |
| |
| /** |
| * ibv_query_rt_values_ex - Get current real time @values of a device. |
| * @values - in/out - defines the attributes we need to query/queried. |
| * (Or's bits of enum ibv_values_mask on values->comp_mask field) |
| */ |
| static inline int |
| ibv_query_rt_values_ex(struct ibv_context *context, |
| struct ibv_values_ex *values) |
| { |
| struct verbs_context *vctx; |
| |
| vctx = verbs_get_ctx_op(context, query_rt_values); |
| if (!vctx) |
| return ENOSYS; |
| |
| if (values->comp_mask & ~(IBV_VALUES_MASK_RESERVED - 1)) |
| return EINVAL; |
| |
| return vctx->query_rt_values(context, values); |
| } |
| |
| /** |
| * ibv_query_device_ex - Get extended device properties |
| */ |
| static inline int |
| ibv_query_device_ex(struct ibv_context *context, |
| const struct ibv_query_device_ex_input *input, |
| struct ibv_device_attr_ex *attr) |
| { |
| struct verbs_context *vctx; |
| int ret; |
| |
| vctx = verbs_get_ctx_op(context, query_device_ex); |
| if (!vctx) |
| goto legacy; |
| |
| ret = vctx->query_device_ex(context, input, attr, sizeof(*attr)); |
| if (ret == ENOSYS) |
| goto legacy; |
| |
| return ret; |
| |
| legacy: |
| memset(attr, 0, sizeof(*attr)); |
| ret = ibv_query_device(context, &attr->orig_attr); |
| |
| return ret; |
| } |
| |
| /** |
| * ibv_open_qp - Open a shareable queue pair. |
| */ |
| static inline struct ibv_qp * |
| ibv_open_qp(struct ibv_context *context, struct ibv_qp_open_attr *qp_open_attr) |
| { |
| struct verbs_context *vctx = verbs_get_ctx_op(context, open_qp); |
| if (!vctx) { |
| errno = ENOSYS; |
| return NULL; |
| } |
| return vctx->open_qp(context, qp_open_attr); |
| } |
| |
| /** |
| * ibv_modify_qp - Modify a queue pair. |
| */ |
| int ibv_modify_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr, |
| int attr_mask); |
| |
| /** |
| * ibv_query_qp - Returns the attribute list and current values for the |
| * specified QP. |
| * @qp: The QP to query. |
| * @attr: The attributes of the specified QP. |
| * @attr_mask: A bit-mask used to select specific attributes to query. |
| * @init_attr: Additional attributes of the selected QP. |
| * |
| * The qp_attr_mask may be used to limit the query to gathering only the |
| * selected attributes. |
| */ |
| int ibv_query_qp(struct ibv_qp *qp, struct ibv_qp_attr *attr, |
| int attr_mask, |
| struct ibv_qp_init_attr *init_attr); |
| |
| /** |
| * ibv_destroy_qp - Destroy a queue pair. |
| */ |
| int ibv_destroy_qp(struct ibv_qp *qp); |
| |
| /* |
| * ibv_create_wq - Creates a WQ associated with the specified protection |
| * domain. |
| * @context: ibv_context. |
| * @wq_init_attr: A list of initial attributes required to create the |
| * WQ. If WQ creation succeeds, then the attributes are updated to |
| * the actual capabilities of the created WQ. |
| * |
| * wq_init_attr->max_wr and wq_init_attr->max_sge determine |
| * the requested size of the WQ, and set to the actual values allocated |
| * on return. |
| * If ibv_create_wq() succeeds, then max_wr and max_sge will always be |
| * at least as large as the requested values. |
| * |
| * Return Value |
| * ibv_create_wq() returns a pointer to the created WQ, or NULL if the request |
| * fails. |
| */ |
| static inline struct ibv_wq *ibv_create_wq(struct ibv_context *context, |
| struct ibv_wq_init_attr *wq_init_attr) |
| { |
| struct verbs_context *vctx = verbs_get_ctx_op(context, create_wq); |
| struct ibv_wq *wq; |
| |
| if (!vctx) { |
| errno = ENOSYS; |
| return NULL; |
| } |
| |
| wq = vctx->create_wq(context, wq_init_attr); |
| if (wq) { |
| wq->events_completed = 0; |
| pthread_mutex_init(&wq->mutex, NULL); |
| pthread_cond_init(&wq->cond, NULL); |
| } |
| |
| return wq; |
| } |
| |
| /* |
| * ibv_modify_wq - Modifies the attributes for the specified WQ. |
| * @wq: The WQ to modify. |
| * @wq_attr: On input, specifies the WQ attributes to modify. |
| * wq_attr->attr_mask: A bit-mask used to specify which attributes of the WQ |
| * are being modified. |
| * On output, the current values of selected WQ attributes are returned. |
| * |
| * Return Value |
| * ibv_modify_wq() returns 0 on success, or the value of errno |
| * on failure (which indicates the failure reason). |
| * |
| */ |
| static inline int ibv_modify_wq(struct ibv_wq *wq, struct ibv_wq_attr *wq_attr) |
| { |
| struct verbs_context *vctx = verbs_get_ctx_op(wq->context, modify_wq); |
| |
| if (!vctx) |
| return ENOSYS; |
| |
| return vctx->modify_wq(wq, wq_attr); |
| } |
| |
| /* |
| * ibv_destroy_wq - Destroys the specified WQ. |
| * @ibv_wq: The WQ to destroy. |
| * Return Value |
| * ibv_destroy_wq() returns 0 on success, or the value of errno |
| * on failure (which indicates the failure reason). |
| */ |
| static inline int ibv_destroy_wq(struct ibv_wq *wq) |
| { |
| struct verbs_context *vctx; |
| |
| vctx = verbs_get_ctx_op(wq->context, destroy_wq); |
| if (!vctx) |
| return ENOSYS; |
| |
| return vctx->destroy_wq(wq); |
| } |
| |
| /** |
| * ibv_post_send - Post a list of work requests to a send queue. |
| * |
| * If IBV_SEND_INLINE flag is set, the data buffers can be reused |
| * immediately after the call returns. |
| */ |
| static inline int ibv_post_send(struct ibv_qp *qp, struct ibv_send_wr *wr, |
| struct ibv_send_wr **bad_wr) |
| { |
| return qp->context->ops.post_send(qp, wr, bad_wr); |
| } |
| |
| /** |
| * ibv_post_recv - Post a list of work requests to a receive queue. |
| */ |
| static inline int ibv_post_recv(struct ibv_qp *qp, struct ibv_recv_wr *wr, |
| struct ibv_recv_wr **bad_wr) |
| { |
| return qp->context->ops.post_recv(qp, wr, bad_wr); |
| } |
| |
| /** |
| * ibv_create_ah - Create an address handle. |
| */ |
| struct ibv_ah *ibv_create_ah(struct ibv_pd *pd, struct ibv_ah_attr *attr); |
| |
| /** |
| * ibv_init_ah_from_wc - Initializes address handle attributes from a |
| * work completion. |
| * @context: Device context on which the received message arrived. |
| * @port_num: Port on which the received message arrived. |
| * @wc: Work completion associated with the received message. |
| * @grh: References the received global route header. This parameter is |
| * ignored unless the work completion indicates that the GRH is valid. |
| * @ah_attr: Returned attributes that can be used when creating an address |
| * handle for replying to the message. |
| */ |
| int ibv_init_ah_from_wc(struct ibv_context *context, uint8_t port_num, |
| struct ibv_wc *wc, struct ibv_grh *grh, |
| struct ibv_ah_attr *ah_attr); |
| |
| /** |
| * ibv_create_ah_from_wc - Creates an address handle associated with the |
| * sender of the specified work completion. |
| * @pd: The protection domain associated with the address handle. |
| * @wc: Work completion information associated with a received message. |
| * @grh: References the received global route header. This parameter is |
| * ignored unless the work completion indicates that the GRH is valid. |
| * @port_num: The outbound port number to associate with the address. |
| * |
| * The address handle is used to reference a local or global destination |
| * in all UD QP post sends. |
| */ |
| struct ibv_ah *ibv_create_ah_from_wc(struct ibv_pd *pd, struct ibv_wc *wc, |
| struct ibv_grh *grh, uint8_t port_num); |
| |
| /** |
| * ibv_destroy_ah - Destroy an address handle. |
| */ |
| int ibv_destroy_ah(struct ibv_ah *ah); |
| |
| /** |
| * ibv_attach_mcast - Attaches the specified QP to a multicast group. |
| * @qp: QP to attach to the multicast group. The QP must be a UD QP. |
| * @gid: Multicast group GID. |
| * @lid: Multicast group LID in host byte order. |
| * |
| * In order to route multicast packets correctly, subnet |
| * administration must have created the multicast group and configured |
| * the fabric appropriately. The port associated with the specified |
| * QP must also be a member of the multicast group. |
| */ |
| int ibv_attach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid); |
| |
| /** |
| * ibv_detach_mcast - Detaches the specified QP from a multicast group. |
| * @qp: QP to detach from the multicast group. |
| * @gid: Multicast group GID. |
| * @lid: Multicast group LID in host byte order. |
| */ |
| int ibv_detach_mcast(struct ibv_qp *qp, const union ibv_gid *gid, uint16_t lid); |
| |
| /** |
| * ibv_fork_init - Prepare data structures so that fork() may be used |
| * safely. If this function is not called or returns a non-zero |
| * status, then libibverbs data structures are not fork()-safe and the |
| * effect of an application calling fork() is undefined. |
| */ |
| int ibv_fork_init(void); |
| |
| /** |
| * ibv_node_type_str - Return string describing node_type enum value |
| */ |
| const char *ibv_node_type_str(enum ibv_node_type node_type); |
| |
| /** |
| * ibv_port_state_str - Return string describing port_state enum value |
| */ |
| const char *ibv_port_state_str(enum ibv_port_state port_state); |
| |
| /** |
| * ibv_event_type_str - Return string describing event_type enum value |
| */ |
| const char *ibv_event_type_str(enum ibv_event_type event); |
| |
| #define ETHERNET_LL_SIZE 6 |
| int ibv_resolve_eth_l2_from_gid(struct ibv_context *context, |
| struct ibv_ah_attr *attr, |
| uint8_t eth_mac[ETHERNET_LL_SIZE], |
| uint16_t *vid); |
| |
| static inline int ibv_is_qpt_supported(uint32_t caps, enum ibv_qp_type qpt) |
| { |
| return !!(caps & (1 << qpt)); |
| } |
| |
| END_C_DECLS |
| |
| # undef __attribute_const |
| |
| |
| #endif /* INFINIBAND_VERBS_H */ |