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1/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */2/*3 * Copyright 2018-2024 Amazon.com, Inc. or its affiliates. All rights reserved.4 */5 6#ifndef EFA_ABI_USER_H7#define EFA_ABI_USER_H8 9#include <linux/types.h>10#include <rdma/ib_user_ioctl_cmds.h>11 12/*13 * Increment this value if any changes that break userspace ABI14 * compatibility are made.15 */16#define EFA_UVERBS_ABI_VERSION 117 18/*19 * Keep structs aligned to 8 bytes.20 * Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the21 * hex bit offset of the field.22 */23 24enum {25 EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH = 1 << 0,26 EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1,27};28 29struct efa_ibv_alloc_ucontext_cmd {30 __u32 comp_mask;31 __u8 reserved_20[4];32};33 34enum efa_ibv_user_cmds_supp_udata {35 EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0,36 EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1,37};38 39struct efa_ibv_alloc_ucontext_resp {40 __u32 comp_mask;41 __u32 cmds_supp_udata_mask;42 __u16 sub_cqs_per_cq;43 __u16 inline_buf_size;44 __u32 max_llq_size; /* bytes */45 __u16 max_tx_batch; /* units of 64 bytes */46 __u16 min_sq_wr;47 __u8 reserved_a0[4];48};49 50struct efa_ibv_alloc_pd_resp {51 __u32 comp_mask;52 __u16 pdn;53 __u8 reserved_30[2];54};55 56enum {57 EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0,58 EFA_CREATE_CQ_WITH_SGID = 1 << 1,59};60 61struct efa_ibv_create_cq {62 __u32 comp_mask;63 __u32 cq_entry_size;64 __u16 num_sub_cqs;65 __u8 flags;66 __u8 reserved_58[5];67};68 69enum {70 EFA_CREATE_CQ_RESP_DB_OFF = 1 << 0,71};72 73struct efa_ibv_create_cq_resp {74 __u32 comp_mask;75 __u8 reserved_20[4];76 __aligned_u64 q_mmap_key;77 __aligned_u64 q_mmap_size;78 __u16 cq_idx;79 __u8 reserved_d0[2];80 __u32 db_off;81 __aligned_u64 db_mmap_key;82};83 84enum {85 EFA_QP_DRIVER_TYPE_SRD = 0,86};87 88enum {89 EFA_CREATE_QP_WITH_UNSOLICITED_WRITE_RECV = 1 << 0,90};91 92struct efa_ibv_create_qp {93 __u32 comp_mask;94 __u32 rq_ring_size; /* bytes */95 __u32 sq_ring_size; /* bytes */96 __u32 driver_qp_type;97 __u16 flags;98 __u8 reserved_90[6];99};100 101struct efa_ibv_create_qp_resp {102 __u32 comp_mask;103 /* the offset inside the page of the rq db */104 __u32 rq_db_offset;105 /* the offset inside the page of the sq db */106 __u32 sq_db_offset;107 /* the offset inside the page of descriptors buffer */108 __u32 llq_desc_offset;109 __aligned_u64 rq_mmap_key;110 __aligned_u64 rq_mmap_size;111 __aligned_u64 rq_db_mmap_key;112 __aligned_u64 sq_db_mmap_key;113 __aligned_u64 llq_desc_mmap_key;114 __u16 send_sub_cq_idx;115 __u16 recv_sub_cq_idx;116 __u8 reserved_1e0[4];117};118 119struct efa_ibv_create_ah_resp {120 __u32 comp_mask;121 __u16 efa_address_handle;122 __u8 reserved_30[2];123};124 125enum {126 EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0,127 EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1,128 EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2,129 EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID = 1 << 3,130 EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4,131 EFA_QUERY_DEVICE_CAPS_RDMA_WRITE = 1 << 5,132 EFA_QUERY_DEVICE_CAPS_UNSOLICITED_WRITE_RECV = 1 << 6,133};134 135struct efa_ibv_ex_query_device_resp {136 __u32 comp_mask;137 __u32 max_sq_wr;138 __u32 max_rq_wr;139 __u16 max_sq_sge;140 __u16 max_rq_sge;141 __u32 max_rdma_size;142 __u32 device_caps;143};144 145enum {146 EFA_QUERY_MR_VALIDITY_RECV_IC_ID = 1 << 0,147 EFA_QUERY_MR_VALIDITY_RDMA_READ_IC_ID = 1 << 1,148 EFA_QUERY_MR_VALIDITY_RDMA_RECV_IC_ID = 1 << 2,149};150 151enum efa_query_mr_attrs {152 EFA_IB_ATTR_QUERY_MR_HANDLE = (1U << UVERBS_ID_NS_SHIFT),153 EFA_IB_ATTR_QUERY_MR_RESP_IC_ID_VALIDITY,154 EFA_IB_ATTR_QUERY_MR_RESP_RECV_IC_ID,155 EFA_IB_ATTR_QUERY_MR_RESP_RDMA_READ_IC_ID,156 EFA_IB_ATTR_QUERY_MR_RESP_RDMA_RECV_IC_ID,157};158 159enum efa_mr_methods {160 EFA_IB_METHOD_MR_QUERY = (1U << UVERBS_ID_NS_SHIFT),161};162 163#endif /* EFA_ABI_USER_H */164