1 /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */ 2 /* 3 * Copyright 2018-2019 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 11 /* 12 * Increment this value if any changes that break userspace ABI 13 * compatibility are made. 14 */ 15 #define EFA_UVERBS_ABI_VERSION 1 16 17 /* 18 * Keep structs aligned to 8 bytes. 19 * Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the 20 * hex bit offset of the field. 21 */ 22 23 enum efa_ibv_user_cmds_supp_udata { 24 EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0, 25 EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1, 26 }; 27 28 struct efa_ibv_alloc_ucontext_resp { 29 __u32 comp_mask; 30 __u32 cmds_supp_udata_mask; 31 __u16 sub_cqs_per_cq; 32 __u16 inline_buf_size; 33 __u32 max_llq_size; /* bytes */ 34 }; 35 36 struct efa_ibv_alloc_pd_resp { 37 __u32 comp_mask; 38 __u16 pdn; 39 __u8 reserved_30[2]; 40 }; 41 42 struct efa_ibv_create_cq { 43 __u32 comp_mask; 44 __u32 cq_entry_size; 45 __u16 num_sub_cqs; 46 __u8 reserved_50[6]; 47 }; 48 49 struct efa_ibv_create_cq_resp { 50 __u32 comp_mask; 51 __u8 reserved_20[4]; 52 __aligned_u64 q_mmap_key; 53 __aligned_u64 q_mmap_size; 54 __u16 cq_idx; 55 __u8 reserved_d0[6]; 56 }; 57 58 enum { 59 EFA_QP_DRIVER_TYPE_SRD = 0, 60 }; 61 62 struct efa_ibv_create_qp { 63 __u32 comp_mask; 64 __u32 rq_ring_size; /* bytes */ 65 __u32 sq_ring_size; /* bytes */ 66 __u32 driver_qp_type; 67 }; 68 69 struct efa_ibv_create_qp_resp { 70 __u32 comp_mask; 71 /* the offset inside the page of the rq db */ 72 __u32 rq_db_offset; 73 /* the offset inside the page of the sq db */ 74 __u32 sq_db_offset; 75 /* the offset inside the page of descriptors buffer */ 76 __u32 llq_desc_offset; 77 __aligned_u64 rq_mmap_key; 78 __aligned_u64 rq_mmap_size; 79 __aligned_u64 rq_db_mmap_key; 80 __aligned_u64 sq_db_mmap_key; 81 __aligned_u64 llq_desc_mmap_key; 82 __u16 send_sub_cq_idx; 83 __u16 recv_sub_cq_idx; 84 __u8 reserved_1e0[4]; 85 }; 86 87 struct efa_ibv_create_ah_resp { 88 __u32 comp_mask; 89 __u16 efa_address_handle; 90 __u8 reserved_30[2]; 91 }; 92 93 struct efa_ibv_ex_query_device_resp { 94 __u32 comp_mask; 95 __u32 max_sq_wr; 96 __u32 max_rq_wr; 97 __u16 max_sq_sge; 98 __u16 max_rq_sge; 99 }; 100 101 #endif /* EFA_ABI_USER_H */ 102