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/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
/*
* Copyright 2018-2021 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];
};
enum {
EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0,
};
struct efa_ibv_create_cq {
__u32 comp_mask;
__u32 cq_entry_size;
__u16 num_sub_cqs;
__u8 flags;
__u8 reserved_58[5];
};
enum {
EFA_CREATE_CQ_RESP_DB_OFF = 1 << 0,
};
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[2];
__u32 db_off;
__aligned_u64 db_mmap_key;
};
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,
EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1,
EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2,
};
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 */
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