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| author | Namjae Jeon <namjae.jeon@samsung.com> | 2021-06-24 04:34:11 +0300 |
|---|---|---|
| committer | Namjae Jeon <namjae.jeon@samsung.com> | 2021-06-28 10:28:31 +0300 |
| commit | 1a93084b9a89818aec0ac7b59a5a51f2112bf203 (patch) | |
| tree | aa796783fe2b12464123969f1461f133cae8b494 /fs/ksmbd/transport_rdma.h | |
| parent | 131bac1ece2e16201674b2f29b64d2044c826b56 (diff) | |
| download | linux-1a93084b9a89818aec0ac7b59a5a51f2112bf203.tar.xz | |
ksmbd: move fs/cifsd to fs/ksmbd
Move fs/cifsd to fs/ksmbd and rename the remaining cifsd name to ksmbd.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd/transport_rdma.h')
| -rw-r--r-- | fs/ksmbd/transport_rdma.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/fs/ksmbd/transport_rdma.h b/fs/ksmbd/transport_rdma.h new file mode 100644 index 000000000000..da60fcec3ede --- /dev/null +++ b/fs/ksmbd/transport_rdma.h @@ -0,0 +1,61 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2017, Microsoft Corporation. + * Copyright (C) 2018, LG Electronics. + */ + +#ifndef __KSMBD_TRANSPORT_RDMA_H__ +#define __KSMBD_TRANSPORT_RDMA_H__ + +#define SMB_DIRECT_PORT 5445 + +/* SMB DIRECT negotiation request packet [MS-KSMBD] 2.2.1 */ +struct smb_direct_negotiate_req { + __le16 min_version; + __le16 max_version; + __le16 reserved; + __le16 credits_requested; + __le32 preferred_send_size; + __le32 max_receive_size; + __le32 max_fragmented_size; +} __packed; + +/* SMB DIRECT negotiation response packet [MS-KSMBD] 2.2.2 */ +struct smb_direct_negotiate_resp { + __le16 min_version; + __le16 max_version; + __le16 negotiated_version; + __le16 reserved; + __le16 credits_requested; + __le16 credits_granted; + __le32 status; + __le32 max_readwrite_size; + __le32 preferred_send_size; + __le32 max_receive_size; + __le32 max_fragmented_size; +} __packed; + +#define SMB_DIRECT_RESPONSE_REQUESTED 0x0001 + +/* SMB DIRECT data transfer packet with payload [MS-KSMBD] 2.2.3 */ +struct smb_direct_data_transfer { + __le16 credits_requested; + __le16 credits_granted; + __le16 flags; + __le16 reserved; + __le32 remaining_data_length; + __le32 data_offset; + __le32 data_length; + __le32 padding; + __u8 buffer[]; +} __packed; + +#ifdef CONFIG_SMB_SERVER_SMBDIRECT +int ksmbd_rdma_init(void); +int ksmbd_rdma_destroy(void); +#else +static inline int ksmbd_rdma_init(void) { return 0; } +static inline int ksmbd_rdma_destroy(void) { return 0; } +#endif + +#endif /* __KSMBD_TRANSPORT_RDMA_H__ */ |