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 */ 11 struct 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 */ 25 struct smbdirect_socket_parameters { 26 __u16 recv_credit_max; 27 __u16 send_credit_target; 28 __u32 max_send_size; 29 __u32 max_fragmented_send_size; 30 __u32 max_recv_size; 31 __u32 max_fragmented_recv_size; 32 __u32 max_read_write_size; 33 __u32 keepalive_interval_msec; 34 __u32 keepalive_timeout_msec; 35 } __packed; 36 37 #endif /* __FS_SMB_COMMON_SMBDIRECT_SMBDIRECT_H__ */ 38