Commit 399f9539 authored by Long Li's avatar Long Li Committed by Steve French
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CIFS: SMBD: Implement function to create a SMB Direct connection 



The upper layer calls this function to connect to peer through SMB Direct.
Each SMB Direct connection is based on a RDMA RC Queue Pair.

Signed-off-by: default avatarLong Li <longli@microsoft.com>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
Reviewed-by: default avatarPavel Shilovsky <pshilov@microsoft.com>
parent f198186a

fs/cifs/smbdirect.c

+17 −0
Original line number Diff line number Diff line
@@ -1646,3 +1646,20 @@ struct smbd_connection *_smbd_get_connection( 
	kfree(info);

	return NULL;

}



struct smbd_connection *smbd_get_connection(

	struct TCP_Server_Info *server, struct sockaddr *dstaddr)

{

	struct smbd_connection *ret;

	int port = SMBD_PORT;



try_again:

	ret = _smbd_get_connection(server, dstaddr, port);



	/* Try SMB_PORT if SMBD_PORT doesn't work */

	if (!ret && port == SMBD_PORT) {

		port = SMB_PORT;

		goto try_again;

	}

	return ret;

}

fs/cifs/smbdirect.h

+6 −0
Original line number Diff line number Diff line
@@ -243,9 +243,15 @@ struct smbd_response { 
	u8 packet[];

};



/* Create a SMBDirect session */

struct smbd_connection *smbd_get_connection(

	struct TCP_Server_Info *server, struct sockaddr *dstaddr);



#else

#define cifs_rdma_enabled(server)	0

struct smbd_connection {};

static inline void *smbd_get_connection(

	struct TCP_Server_Info *server, struct sockaddr *dstaddr) {return NULL;}

#endif



#endif