CIFS: SMBD: Upper layer sends data via RDMA send

With SMB Direct connected, use it for sending data via RDMA send.

Signed-off-by: Long Li <longli@microsoft.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>

diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 510f41a435c80a6dc9cff7dd8ad15a3923f478ea..9779b3292d8e8d1cfc8a38558f1e04644b0ed224 100644 (file)
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -37,6 +37,7 @@
 #include "cifsglob.h"
 #include "cifsproto.h"
 #include "cifs_debug.h"
+#include "smbdirect.h"
 
 /* Max number of iovectors we can use off the stack when sending requests. */
 #define CIFS_MAX_IOV_SIZE 8
@@ -232,7 +233,10 @@ __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst)
        struct socket *ssocket = server->ssocket;
        struct msghdr smb_msg;
        int val = 1;
-
+       if (cifs_rdma_enabled(server) && server->smbd_conn) {
+               rc = smbd_send(server->smbd_conn, rqst);
+               goto smbd_done;
+       }
        if (ssocket == NULL)
                return -ENOTSOCK;
 
@@ -301,7 +305,7 @@ uncork:
                 */
                server->tcpStatus = CifsNeedReconnect;
        }
-
+smbd_done:
        if (rc < 0 && rc != -EINTR)
                cifs_dbg(VFS, "Error %d sending data on socket to server\n",
                         rc);