1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */ 2 /* 3 * Copyright 2018-2026 Amazon.com, Inc. or its affiliates. All rights reserved. 4 */ 5 6 #ifndef EFA_ABI_USER_H 7 #define EFA_ABI_USER_H 8 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 ABI 14 * compatibility are made. 15 */ 16 #define EFA_UVERBS_ABI_VERSION 1 17 18 /* 19 * Keep structs aligned to 8 bytes. 20 * Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the 21 * hex bit offset of the field. 22 */ 23 24 enum { 25 EFA_ALLOC_UCONTEXT_CMD_SUPP_CAPS_TX_BATCH = 1 << 0, 26 EFA_ALLOC_UCONTEXT_CMD_SUPP_CAPS_MIN_SQ_WR = 1 << 1, 27 }; 28 29 struct efa_ibv_alloc_ucontext_cmd { 30 __u32 supported_caps; 31 __u8 reserved_20[4]; 32 }; 33 34 enum 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 39 struct 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 __u16 inline_buf_size_ex; 48 __u8 reserved_b0[2]; 49 }; 50 51 struct efa_ibv_alloc_pd_resp { 52 __u32 comp_mask; 53 __u16 pdn; 54 __u8 reserved_30[2]; 55 }; 56 57 enum { 58 EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0, 59 EFA_CREATE_CQ_WITH_SGID = 1 << 1, 60 EFA_CREATE_CQ_WITH_SQ_COMP_64_BIT_REQ_ID = 1 << 2, 61 }; 62 63 struct efa_ibv_create_cq { 64 __u32 comp_mask; 65 __u32 cq_entry_size; 66 __u16 num_sub_cqs; 67 __u8 flags; 68 __u8 reserved_58[5]; 69 }; 70 71 enum { 72 EFA_CREATE_CQ_RESP_DB_OFF = 1 << 0, 73 }; 74 75 struct efa_ibv_create_cq_resp { 76 __u32 comp_mask; 77 __u8 reserved_20[4]; 78 __aligned_u64 q_mmap_key; 79 __aligned_u64 q_mmap_size; 80 __u16 cq_idx; 81 __u8 reserved_d0[2]; 82 __u32 db_off; 83 __aligned_u64 db_mmap_key; 84 }; 85 86 enum { 87 EFA_QP_DRIVER_TYPE_SRD = 0, 88 }; 89 90 enum { 91 EFA_CREATE_QP_WITH_UNSOLICITED_WRITE_RECV = 1 << 0, 92 EFA_CREATE_QP_WITH_SQ_64_BIT_REQ_ID = 1 << 1, 93 }; 94 95 struct efa_ibv_create_qp { 96 __u32 comp_mask; 97 __u32 rq_ring_size; /* bytes */ 98 __u32 sq_ring_size; /* bytes */ 99 __u32 driver_qp_type; 100 __u16 flags; 101 __u8 sl; 102 __u8 reserved_98[5]; 103 }; 104 105 struct efa_ibv_create_qp_resp { 106 __u32 comp_mask; 107 /* the offset inside the page of the rq db */ 108 __u32 rq_db_offset; 109 /* the offset inside the page of the sq db */ 110 __u32 sq_db_offset; 111 /* the offset inside the page of descriptors buffer */ 112 __u32 llq_desc_offset; 113 __aligned_u64 rq_mmap_key; 114 __aligned_u64 rq_mmap_size; 115 __aligned_u64 rq_db_mmap_key; 116 __aligned_u64 sq_db_mmap_key; 117 __aligned_u64 llq_desc_mmap_key; 118 __u16 send_sub_cq_idx; 119 __u16 recv_sub_cq_idx; 120 __u8 reserved_1e0[4]; 121 }; 122 123 struct efa_ibv_create_ah_resp { 124 __u32 comp_mask; 125 __u16 efa_address_handle; 126 __u8 reserved_30[2]; 127 }; 128 129 enum { 130 EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0, 131 EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1, 132 EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2, 133 EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID = 1 << 3, 134 EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4, 135 EFA_QUERY_DEVICE_CAPS_RDMA_WRITE = 1 << 5, 136 EFA_QUERY_DEVICE_CAPS_UNSOLICITED_WRITE_RECV = 1 << 6, 137 EFA_QUERY_DEVICE_CAPS_CQ_WITH_EXT_MEM = 1 << 7, 138 EFA_QUERY_DEVICE_CAPS_COMP_CNTR = 1 << 8, 139 EFA_QUERY_DEVICE_CAPS_SQ_64_BIT_REQ_ID = 1 << 9, 140 }; 141 142 struct efa_ibv_ex_query_device_resp { 143 __u32 comp_mask; 144 __u32 max_sq_wr; 145 __u32 max_rq_wr; 146 __u16 max_sq_sge; 147 __u16 max_rq_sge; 148 __u32 max_rdma_size; 149 __u32 device_caps; 150 }; 151 152 enum { 153 EFA_QUERY_MR_VALIDITY_RECV_IC_ID = 1 << 0, 154 EFA_QUERY_MR_VALIDITY_RDMA_READ_IC_ID = 1 << 1, 155 EFA_QUERY_MR_VALIDITY_RDMA_RECV_IC_ID = 1 << 2, 156 }; 157 158 enum efa_query_mr_attrs { 159 EFA_IB_ATTR_QUERY_MR_HANDLE = (1U << UVERBS_ID_NS_SHIFT), 160 EFA_IB_ATTR_QUERY_MR_RESP_IC_ID_VALIDITY, 161 EFA_IB_ATTR_QUERY_MR_RESP_RECV_IC_ID, 162 EFA_IB_ATTR_QUERY_MR_RESP_RDMA_READ_IC_ID, 163 EFA_IB_ATTR_QUERY_MR_RESP_RDMA_RECV_IC_ID, 164 }; 165 166 enum efa_mr_methods { 167 EFA_IB_METHOD_MR_QUERY = (1U << UVERBS_ID_NS_SHIFT), 168 }; 169 170 enum efa_comp_cntr_create_attrs { 171 EFA_IB_ATTR_CREATE_COMP_CNTR_COMP_BUFFER = (1U << UVERBS_ID_NS_SHIFT), 172 EFA_IB_ATTR_CREATE_COMP_CNTR_ERR_BUFFER, 173 }; 174 175 #endif /* EFA_ABI_USER_H */ 176