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File efa-abi.h

/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */
/*
 * Copyright 2018-2023 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,
	EFA_CREATE_CQ_WITH_SGID               = 1 << 1,
};

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,
	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,
};

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 */

Name	Type	Size	Permission	Last Modified	Actions
.	DIR	-	drwxr-xr-x	2025-10-28 10:57:27
..	DIR	-	drwxr-xr-x	2025-10-28 10:57:27
hfi	DIR	-	drwxr-xr-x	2025-10-28 10:57:27
bnxt_re-abi.h	text/x-c	3.43 KB	-rw-r--r--	2025-10-27 03:42:53
cxgb4-abi.h	text/x-c	3.05 KB	-rw-r--r--	2025-10-27 03:42:53
efa-abi.h	text/x-c	2.89 KB	-rw-r--r--	2025-10-27 03:42:53
hns-abi.h	text/x-c	2.16 KB	-rw-r--r--	2025-10-27 03:42:53
ib_user_ioctl_cmds.h	text/plain	9.21 KB	-rw-r--r--	2025-10-27 03:42:53
ib_user_ioctl_verbs.h	text/x-c	7.7 KB	-rw-r--r--	2025-10-27 03:42:53
ib_user_mad.h	text/x-c	8.33 KB	-rw-r--r--	2025-10-27 03:42:53
ib_user_sa.h	text/x-c	2.25 KB	-rw-r--r--	2025-10-27 03:42:53
ib_user_verbs.h	text/x-c	28.29 KB	-rw-r--r--	2025-10-27 03:42:53
irdma-abi.h	text/x-c	2.14 KB	-rw-r--r--	2025-10-27 03:42:53
mana-abi.h	text/x-c	1.16 KB	-rw-r--r--	2025-10-27 03:42:53
mlx4-abi.h	text/x-c	5 KB	-rw-r--r--	2025-10-27 03:42:53
mlx5-abi.h	text/x-c	13.54 KB	-rw-r--r--	2025-10-27 03:42:53
mlx5_user_ioctl_cmds.h	text/x-c	10.49 KB	-rw-r--r--	2025-10-27 03:42:53
mlx5_user_ioctl_verbs.h	text/x-c	3.5 KB	-rw-r--r--	2025-10-27 03:42:53
mthca-abi.h	text/x-c	2.98 KB	-rw-r--r--	2025-10-27 03:42:53
ocrdma-abi.h	text/x-c	4.02 KB	-rw-r--r--	2025-10-27 03:42:53
qedr-abi.h	text/x-c	4.21 KB	-rw-r--r--	2025-10-27 03:42:53
rdma_netlink.h	text/x-c	14.64 KB	-rw-r--r--	2025-10-27 03:42:53
rdma_user_cm.h	text/x-c	6.96 KB	-rw-r--r--	2025-10-27 03:42:53
rdma_user_ioctl.h	text/x-c	3.66 KB	-rw-r--r--	2025-10-27 03:42:53
rdma_user_ioctl_cmds.h	text/x-c	2.55 KB	-rw-r--r--	2025-10-27 03:42:53
rdma_user_rxe.h	text/x-c	4.67 KB	-rw-r--r--	2025-10-27 03:42:53
rvt-abi.h	text/x-c	1.7 KB	-rw-r--r--	2025-10-27 03:42:53
siw-abi.h	text/x-c	3.32 KB	-rw-r--r--	2025-10-27 03:42:53
vmw_pvrdma-abi.h	text/x-c	7.82 KB	-rw-r--r--	2025-10-27 03:42:53

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