/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) *//* * Copyright 2018-2026 Amazon.com, Inc. or its affiliates. All rights reserved. */ #ifndef EFA_ABI_USER_H#define EFA_ABI_USER_H #include <linux/types.h>#include <rdma/ib_user_ioctl_cmds.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_SUPP_CAPS_TX_BATCH  = 1 << 0,	EFA_ALLOC_UCONTEXT_CMD_SUPP_CAPS_MIN_SQ_WR = 1 << 1,}; struct efa_ibv_alloc_ucontext_cmd {	__u32 supported_caps;	__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;	__u16 inline_buf_size_ex;	__u8 reserved_b0[2];}; struct efa_ibv_alloc_pd_resp {	__u32 comp_mask;	__u16 pdn;	__u8 reserved_30[2];}; enum {	EFA_CREATE_CQ_WITH_COMPLETION_CHANNEL = 1 << 0,	EFA_CREATE_CQ_WITH_SGID = 1 << 1,	EFA_CREATE_CQ_WITH_SQ_COMP_64_BIT_REQ_ID = 1 << 2,}; 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,}; enum {	EFA_CREATE_QP_WITH_UNSOLICITED_WRITE_RECV = 1 << 0,	EFA_CREATE_QP_WITH_SQ_64_BIT_REQ_ID = 1 << 1,}; struct efa_ibv_create_qp {	__u32 comp_mask;	__u32 rq_ring_size; /* bytes */	__u32 sq_ring_size; /* bytes */	__u32 driver_qp_type;	__u16 flags;	__u8 sl;	__u8 reserved_98[5];}; 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,	EFA_QUERY_DEVICE_CAPS_CQ_WITH_SGID     = 1 << 3,	EFA_QUERY_DEVICE_CAPS_DATA_POLLING_128 = 1 << 4,	EFA_QUERY_DEVICE_CAPS_RDMA_WRITE = 1 << 5,	EFA_QUERY_DEVICE_CAPS_UNSOLICITED_WRITE_RECV = 1 << 6,	EFA_QUERY_DEVICE_CAPS_CQ_WITH_EXT_MEM = 1 << 7,	EFA_QUERY_DEVICE_CAPS_COMP_CNTR = 1 << 8,	EFA_QUERY_DEVICE_CAPS_SQ_64_BIT_REQ_ID = 1 << 9,}; 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;}; enum {	EFA_QUERY_MR_VALIDITY_RECV_IC_ID = 1 << 0,	EFA_QUERY_MR_VALIDITY_RDMA_READ_IC_ID = 1 << 1,	EFA_QUERY_MR_VALIDITY_RDMA_RECV_IC_ID = 1 << 2,}; enum efa_query_mr_attrs {	EFA_IB_ATTR_QUERY_MR_HANDLE = (1U << UVERBS_ID_NS_SHIFT),	EFA_IB_ATTR_QUERY_MR_RESP_IC_ID_VALIDITY,	EFA_IB_ATTR_QUERY_MR_RESP_RECV_IC_ID,	EFA_IB_ATTR_QUERY_MR_RESP_RDMA_READ_IC_ID,	EFA_IB_ATTR_QUERY_MR_RESP_RDMA_RECV_IC_ID,}; enum efa_mr_methods {	EFA_IB_METHOD_MR_QUERY = (1U << UVERBS_ID_NS_SHIFT),}; enum efa_comp_cntr_create_attrs {	EFA_IB_ATTR_CREATE_COMP_CNTR_COMP_BUFFER = (1U << UVERBS_ID_NS_SHIFT),	EFA_IB_ATTR_CREATE_COMP_CNTR_ERR_BUFFER,}; #endif /* EFA_ABI_USER_H */