| /* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */ |
| /* |
| * Copyright 2018-2020 Amazon.com, Inc. or its affiliates. All rights reserved. |
| */ |
| |
| #ifndef EFA_ABI_USER_H |
| #define EFA_ABI_USER_H |
| |
| #include <linux/types.h> |
| |
| /* |
| * Increment this value if any changes that break userspace ABI |
| * compatibility are made. |
| */ |
| #define EFA_UVERBS_ABI_VERSION 1 |
| |
| /* |
| * Keep structs aligned to 8 bytes. |
| * Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the |
| * hex bit offset of the field. |
| */ |
| |
| enum { |
| EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH = 1 << 0, |
| EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1, |
| }; |
| |
| struct efa_ibv_alloc_ucontext_cmd { |
| __u32 comp_mask; |
| __u8 reserved_20[4]; |
| }; |
| |
| enum efa_ibv_user_cmds_supp_udata { |
| EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0, |
| EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1, |
| }; |
| |
| struct efa_ibv_alloc_ucontext_resp { |
| __u32 comp_mask; |
| __u32 cmds_supp_udata_mask; |
| __u16 sub_cqs_per_cq; |
| __u16 inline_buf_size; |
| __u32 max_llq_size; /* bytes */ |
| __u16 max_tx_batch; /* units of 64 bytes */ |
| __u16 min_sq_wr; |
| __u8 reserved_a0[4]; |
| }; |
| |
| struct efa_ibv_alloc_pd_resp { |
| __u32 comp_mask; |
| __u16 pdn; |
| __u8 reserved_30[2]; |
| }; |
| |
| struct efa_ibv_create_cq { |
| __u32 comp_mask; |
| __u32 cq_entry_size; |
| __u16 num_sub_cqs; |
| __u8 reserved_50[6]; |
| }; |
| |
| struct efa_ibv_create_cq_resp { |
| __u32 comp_mask; |
| __u8 reserved_20[4]; |
| __aligned_u64 q_mmap_key; |
| __aligned_u64 q_mmap_size; |
| __u16 cq_idx; |
| __u8 reserved_d0[6]; |
| }; |
| |
| enum { |
| EFA_QP_DRIVER_TYPE_SRD = 0, |
| }; |
| |
| struct efa_ibv_create_qp { |
| __u32 comp_mask; |
| __u32 rq_ring_size; /* bytes */ |
| __u32 sq_ring_size; /* bytes */ |
| __u32 driver_qp_type; |
| }; |
| |
| struct efa_ibv_create_qp_resp { |
| __u32 comp_mask; |
| /* the offset inside the page of the rq db */ |
| __u32 rq_db_offset; |
| /* the offset inside the page of the sq db */ |
| __u32 sq_db_offset; |
| /* the offset inside the page of descriptors buffer */ |
| __u32 llq_desc_offset; |
| __aligned_u64 rq_mmap_key; |
| __aligned_u64 rq_mmap_size; |
| __aligned_u64 rq_db_mmap_key; |
| __aligned_u64 sq_db_mmap_key; |
| __aligned_u64 llq_desc_mmap_key; |
| __u16 send_sub_cq_idx; |
| __u16 recv_sub_cq_idx; |
| __u8 reserved_1e0[4]; |
| }; |
| |
| struct efa_ibv_create_ah_resp { |
| __u32 comp_mask; |
| __u16 efa_address_handle; |
| __u8 reserved_30[2]; |
| }; |
| |
| enum { |
| EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0, |
| }; |
| |
| struct efa_ibv_ex_query_device_resp { |
| __u32 comp_mask; |
| __u32 max_sq_wr; |
| __u32 max_rq_wr; |
| __u16 max_sq_sge; |
| __u16 max_rq_sge; |
| __u32 max_rdma_size; |
| __u32 device_caps; |
| }; |
| |
| #endif /* EFA_ABI_USER_H */ |