smbdirect.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 *   Copyright (C) 2017, Microsoft Corporation.
 4 *   Copyright (C) 2018, LG Electronics.
 5 */
 6
 7#ifndef __FS_SMB_COMMON_SMBDIRECT_SMBDIRECT_H__
 8#define __FS_SMB_COMMON_SMBDIRECT_SMBDIRECT_H__
 9
10/* SMB-DIRECT buffer descriptor V1 structure [MS-SMBD] 2.2.3.1 */
11struct smbdirect_buffer_descriptor_v1 {
12	__le64 offset;
13	__le32 token;
14	__le32 length;
15} __packed;
16
17/*
18 * Connection parameters mostly from [MS-SMBD] 3.1.1.1
19 *
20 * These are setup and negotiated at the beginning of a
21 * connection and remain constant unless explicitly changed.
22 *
23 * Some values are important for the upper layer.
24 */
25struct smbdirect_socket_parameters {
26	__u32 resolve_addr_timeout_msec;
27	__u32 resolve_route_timeout_msec;
28	__u32 rdma_connect_timeout_msec;
29	__u32 negotiate_timeout_msec;
30	__u8  initiator_depth;
31	__u8  responder_resources;
32	__u16 recv_credit_max;
33	__u16 send_credit_target;
34	__u32 max_send_size;
35	__u32 max_fragmented_send_size;
36	__u32 max_recv_size;
37	__u32 max_fragmented_recv_size;
38	__u32 max_read_write_size;
39	__u32 max_frmr_depth;
40	__u32 keepalive_interval_msec;
41	__u32 keepalive_timeout_msec;
42} __packed;
43
44#endif /* __FS_SMB_COMMON_SMBDIRECT_SMBDIRECT_H__ */