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smb: smbdirect: introduce smbdirect_socket_parameters

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This is the next step in the direction of a common smbdirect layer.

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: Hyunchul Lee <hyc.lee@gmail.com>
Cc: Meetakshi Setiya <meetakshisetiyaoss@gmail.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Stefan Metzmacher
2025-05-28 18:01:39 +02:00
committed by Steve French
parent c3011b9a7d
commit dce8047f47
3 changed files with 23 additions and 0 deletions
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1
fs/smb/client/smbdirect.h
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@@ -15,6 +15,7 @@
#include <rdma/rdma_cm.h>
#include <linux/mempool.h>
#include "../common/smbdirect/smbdirect.h"
#include "../common/smbdirect/smbdirect_socket.h"
extern int rdma_readwrite_threshold;

20
fs/smb/common/smbdirect/smbdirect.h
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@@ -14,4 +14,24 @@ struct smbdirect_buffer_descriptor_v1 {
__le32 length;
} __packed;
/*
* Connection parameters mostly from [MS-SMBD] 3.1.1.1
*
* These are setup and negotiated at the beginning of a
* connection and remain constant unless explicitly changed.
*
* Some values are important for the upper layer.
*/
struct smbdirect_socket_parameters {
__u16 recv_credit_max;
__u16 send_credit_target;
__u32 max_send_size;
__u32 max_fragmented_send_size;
__u32 max_recv_size;
__u32 max_fragmented_recv_size;
__u32 max_read_write_size;
__u32 keepalive_interval_msec;
__u32 keepalive_timeout_msec;
} __packed;
#endif /* __FS_SMB_COMMON_SMBDIRECT_SMBDIRECT_H__ */

2
fs/smb/common/smbdirect/smbdirect_socket.h
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@@ -36,6 +36,8 @@ struct smbdirect_socket {
struct ib_qp *qp;
struct ib_device *dev;
} ib;
struct smbdirect_socket_parameters parameters;
};
#endif /* __FS_SMB_COMMON_SMBDIRECT_SMBDIRECT_SOCKET_H__ */