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_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_COMP_TX_BATCH = 1 << 0, 26 EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1, 27 }; 28 29 struct efa_ibv_alloc_ucontext_cmd { 30 __u32 comp_mask; 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 __u8 reserved_a0[4]; 48 }; 49 50 struct efa_ibv_alloc_pd_resp { 51 __u32 comp_mask; 52 __u16 pdn; 53 __u8 reserved_30[2]; 54 }; 55 56 enum { 57 EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0, 58 EFA_CREATE_CQ_WITH_SGID = 1 << 1, 59 }; 60 61 struct 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 69 enum { 70 EFA_CREATE_CQ_RESP_DB_OFF = 1 << 0, 71 }; 72 73 struct 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 84 enum { 85 EFA_QP_DRIVER_TYPE_SRD = 0, 86 }; 87 88 struct efa_ibv_create_qp { 89 __u32 comp_mask; 90 __u32 rq_ring_size; /* bytes */ 91 __u32 sq_ring_size; /* bytes */ 92 __u32 driver_qp_type; 93 }; 94 95 struct efa_ibv_create_qp_resp { 96 __u32 comp_mask; 97 /* the offset inside the page of the rq db */ 98 __u32 rq_db_offset; 99 /* the offset inside the page of the sq db */ 100 __u32 sq_db_offset; 101 /* the offset inside the page of descriptors buffer */ 102 __u32 llq_desc_offset; 103 __aligned_u64 rq_mmap_key; 104 __aligned_u64 rq_mmap_size; 105 __aligned_u64 rq_db_mmap_key; 106 __aligned_u64 sq_db_mmap_key; 107 __aligned_u64 llq_desc_mmap_key; 108 __u16 send_sub_cq_idx; 109 __u16 recv_sub_cq_idx; 110 __u8 reserved_1e0[4]; 111 }; 112 113 struct efa_ibv_create_ah_resp { 114 __u32 comp_mask; 115 __u16 efa_address_handle; 116 __u8 reserved_30[2]; 117 }; 118 119 enum { 120 EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0, 121 EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1, 122 EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2, 123 EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID = 1 << 3, 124 EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4, 125 EFA_QUERY_DEVICE_CAPS_RDMA_WRITE = 1 << 5, 126 }; 127 128 struct efa_ibv_ex_query_device_resp { 129 __u32 comp_mask; 130 __u32 max_sq_wr; 131 __u32 max_rq_wr; 132 __u16 max_sq_sge; 133 __u16 max_rq_sge; 134 __u32 max_rdma_size; 135 __u32 device_caps; 136 }; 137 138 enum { 139 EFA_QUERY_MR_VALIDITY_RECV_IC_ID = 1 << 0, 140 EFA_QUERY_MR_VALIDITY_RDMA_READ_IC_ID = 1 << 1, 141 EFA_QUERY_MR_VALIDITY_RDMA_RECV_IC_ID = 1 << 2, 142 }; 143 144 enum efa_query_mr_attrs { 145 EFA_IB_ATTR_QUERY_MR_HANDLE = (1U << UVERBS_ID_NS_SHIFT), 146 EFA_IB_ATTR_QUERY_MR_RESP_IC_ID_VALIDITY, 147 EFA_IB_ATTR_QUERY_MR_RESP_RECV_IC_ID, 148 EFA_IB_ATTR_QUERY_MR_RESP_RDMA_READ_IC_ID, 149 EFA_IB_ATTR_QUERY_MR_RESP_RDMA_RECV_IC_ID, 150 }; 151 152 enum efa_mr_methods { 153 EFA_IB_METHOD_MR_QUERY = (1U << UVERBS_ID_NS_SHIFT), 154 }; 155 156 #endif /* EFA_ABI_USER_H */ 157