/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */

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/*

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* Copyright 2018-2023 Amazon.com, Inc. or its affiliates. All rights reserved.

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*/

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#ifndef EFA_ABI_USER_H

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#define EFA_ABI_USER_H

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#include <linux/types.h>

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/*

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* Increment this value if any changes that break userspace ABI

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* compatibility are made.

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*/

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#define EFA_UVERBS_ABI_VERSION 1

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/*

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* Keep structs aligned to 8 bytes.

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* Keep reserved fields as arrays of __u8 named reserved_XXX where XXX is the

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* hex bit offset of the field.

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*/

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enum {

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EFA_ALLOC_UCONTEXT_CMD_COMP_TX_BATCH = 1 << 0,

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EFA_ALLOC_UCONTEXT_CMD_COMP_MIN_SQ_WR = 1 << 1,

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};

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struct efa_ibv_alloc_ucontext_cmd {

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__u32 comp_mask;

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__u8 reserved_20[4];

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};

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enum efa_ibv_user_cmds_supp_udata {

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EFA_USER_CMDS_SUPP_UDATA_QUERY_DEVICE = 1 << 0,

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EFA_USER_CMDS_SUPP_UDATA_CREATE_AH = 1 << 1,

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};

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struct efa_ibv_alloc_ucontext_resp {

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__u32 comp_mask;

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__u32 cmds_supp_udata_mask;

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__u16 sub_cqs_per_cq;

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__u16 inline_buf_size;

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__u32 max_llq_size; /* bytes */

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__u16 max_tx_batch; /* units of 64 bytes */

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__u16 min_sq_wr;

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__u8 reserved_a0[4];

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};

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struct efa_ibv_alloc_pd_resp {

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__u32 comp_mask;

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__u16 pdn;

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__u8 reserved_30[2];

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};

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enum {

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EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0,

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EFA_CREATE_CQ_WITH_SGID = 1 << 1,

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};

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struct efa_ibv_create_cq {

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__u32 comp_mask;

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__u32 cq_entry_size;

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__u16 num_sub_cqs;

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__u8 flags;

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__u8 reserved_58[5];

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};

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enum {

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EFA_CREATE_CQ_RESP_DB_OFF = 1 << 0,

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};

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struct efa_ibv_create_cq_resp {

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__u32 comp_mask;

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__u8 reserved_20[4];

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__aligned_u64 q_mmap_key;

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__aligned_u64 q_mmap_size;

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__u16 cq_idx;

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__u8 reserved_d0[2];

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__u32 db_off;

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__aligned_u64 db_mmap_key;

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};

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enum {

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EFA_QP_DRIVER_TYPE_SRD = 0,

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};

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struct efa_ibv_create_qp {

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__u32 comp_mask;

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__u32 rq_ring_size; /* bytes */

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__u32 sq_ring_size; /* bytes */

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__u32 driver_qp_type;

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};

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struct efa_ibv_create_qp_resp {

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__u32 comp_mask;

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/* the offset inside the page of the rq db */

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__u32 rq_db_offset;

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/* the offset inside the page of the sq db */

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__u32 sq_db_offset;

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/* the offset inside the page of descriptors buffer */

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__u32 llq_desc_offset;

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__aligned_u64 rq_mmap_key;

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__aligned_u64 rq_mmap_size;

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__aligned_u64 rq_db_mmap_key;

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__aligned_u64 sq_db_mmap_key;

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__aligned_u64 llq_desc_mmap_key;

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__u16 send_sub_cq_idx;

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__u16 recv_sub_cq_idx;

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__u8 reserved_1e0[4];

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};

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struct efa_ibv_create_ah_resp {

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__u32 comp_mask;

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__u16 efa_address_handle;

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__u8 reserved_30[2];

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};

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enum {

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EFA_QUERY_DEVICE_CAPS_RDMA_READ = 1 << 0,

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EFA_QUERY_DEVICE_CAPS_RNR_RETRY = 1 << 1,

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EFA_QUERY_DEVICE_CAPS_CQ_NOTIFICATIONS = 1 << 2,

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EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID = 1 << 3,

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EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4,

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EFA_QUERY_DEVICE_CAPS_RDMA_WRITE = 1 << 5,

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};

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struct efa_ibv_ex_query_device_resp {

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__u32 comp_mask;

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__u32 max_sq_wr;

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__u32 max_rq_wr;

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__u16 max_sq_sge;

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__u16 max_rq_sge;

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__u32 max_rdma_size;

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__u32 device_caps;

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};

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#endif /* EFA_ABI_USER_H */

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