From 399f9539d951adf26a1078e38c1b0f10cf6c3e71 Mon Sep 17 00:00:00 2001 From: Long Li Date: Fri, 17 Nov 2017 17:26:52 -0800 Subject: [PATCH] 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: Long Li Signed-off-by: Steve French Reviewed-by: Pavel Shilovsky --- fs/cifs/smbdirect.c | 17 +++++++++++++++++ fs/cifs/smbdirect.h | 6 ++++++ 2 files changed, 23 insertions(+) diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c index 2ecd5c19d313..862cdf9424cb 100644 --- a/fs/cifs/smbdirect.c +++ b/fs/cifs/smbdirect.c @@ -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; +} diff --git a/fs/cifs/smbdirect.h b/fs/cifs/smbdirect.h index e4e65d3c6de8..25b3782cc692 100644 --- a/fs/cifs/smbdirect.h +++ b/fs/cifs/smbdirect.h @@ -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 -- 2.45.2