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63 lines
1.6 KiB
63 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright (C) 2017, Microsoft Corporation. |
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* Copyright (C) 2018, LG Electronics. |
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*/ |
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#ifndef __KSMBD_TRANSPORT_RDMA_H__ |
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#define __KSMBD_TRANSPORT_RDMA_H__ |
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#define SMB_DIRECT_PORT 5445 |
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/* SMB DIRECT negotiation request packet [MS-SMBD] 2.2.1 */ |
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struct smb_direct_negotiate_req { |
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__le16 min_version; |
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__le16 max_version; |
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__le16 reserved; |
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__le16 credits_requested; |
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__le32 preferred_send_size; |
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__le32 max_receive_size; |
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__le32 max_fragmented_size; |
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} __packed; |
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/* SMB DIRECT negotiation response packet [MS-SMBD] 2.2.2 */ |
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struct smb_direct_negotiate_resp { |
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__le16 min_version; |
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__le16 max_version; |
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__le16 negotiated_version; |
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__le16 reserved; |
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__le16 credits_requested; |
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__le16 credits_granted; |
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__le32 status; |
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__le32 max_readwrite_size; |
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__le32 preferred_send_size; |
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__le32 max_receive_size; |
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__le32 max_fragmented_size; |
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} __packed; |
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#define SMB_DIRECT_RESPONSE_REQUESTED 0x0001 |
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/* SMB DIRECT data transfer packet with payload [MS-SMBD] 2.2.3 */ |
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struct smb_direct_data_transfer { |
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__le16 credits_requested; |
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__le16 credits_granted; |
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__le16 flags; |
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__le16 reserved; |
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__le32 remaining_data_length; |
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__le32 data_offset; |
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__le32 data_length; |
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__le32 padding; |
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__u8 buffer[]; |
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} __packed; |
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#ifdef CONFIG_SMB_SERVER_SMBDIRECT |
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int ksmbd_rdma_init(void); |
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int ksmbd_rdma_destroy(void); |
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bool ksmbd_rdma_capable_netdev(struct net_device *netdev); |
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#else |
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static inline int ksmbd_rdma_init(void) { return 0; } |
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static inline int ksmbd_rdma_destroy(void) { return 0; } |
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static inline bool ksmbd_rdma_capable_netdev(struct net_device *netdev) { return false; } |
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#endif |
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#endif /* __KSMBD_TRANSPORT_RDMA_H__ */
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