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[v8,10/16] CIFS: SMBD: Upper layer sends data via RDMA send

Message ID	20171123003849.17093-11-longli@exchange.microsoft.com
State	New
Headers	show Return-Path: <linux-cifs-owner@vger.kernel.org> From: Long Li <longli@exchange.microsoft.com> To: Steve French <sfrench@samba.org>, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, Christoph Hellwig <hch@infradead.org>, Tom Talpey <ttalpey@microsoft.com>, Matthew Wilcox <mawilcox@microsoft.com>, Stephen Hemminger <sthemmin@microsoft.com> Cc: Long Li <longli@microsoft.com> Subject: [Patch v8 10/16] CIFS: SMBD: Upper layer sends data via RDMA send Date: Wed, 22 Nov 2017 17:38:43 -0700 Message-Id: <20171123003849.17093-11-longli@exchange.microsoft.com> In-Reply-To: <20171123003849.17093-1-longli@exchange.microsoft.com> References: <20171123003849.17093-1-longli@exchange.microsoft.com> Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk
Series	CIFS: Implement SMB Direct protocol \| expand [v8,00/16] CIFS: Implement SMB Direct protocol [v8,01/16] CIFS: SMBD: Upper layer connects to SMBDirect session [v8,02/16] CIFS: SMBD: Implement function to reconnect to a SMB Direct transport [v8,03/16] CIFS: SMBD: Upper layer reconnects to SMB Direct session [v8,04/16] CIFS: SMBD: Implement function to destroy a SMB Direct connection [v8,05/16] CIFS: SMBD: Upper layer destroys SMB Direct session on shutdown or umount [v8,06/16] CIFS: SMBD: Set SMB Direct maximum read or write size for I/O [v8,07/16] CIFS: SMBD: Implement function to receive data via RDMA receive [v8,08/16] CIFS: SMBD: Upper layer receives data via RDMA receive [v8,09/16] CIFS: SMBD: Implement function to send data via RDMA send [v8,10/16] CIFS: SMBD: Upper layer sends data via RDMA send [v8,11/16] CIFS: SMBD: Implement RDMA memory registration [v8,12/16] CIFS: SMBD: Upper layer performs SMB write via RDMA read through memory registration [v8,13/16] CIFS: SMBD: Read correct returned data length for RDMA write (SMB read) I/O [v8,14/16] CIFS: SMBD: Upper layer performs SMB read via RDMA write through memory registration [v8,15/16] CIFS: SMBD: Add SMB Direct debug counters [v8,16/16] CIFS: SMBD: Disable signing on SMB direct transport

Commit Message

Long Li Nov. 23, 2017, 12:38 a.m. UTC

From: Long Li <longli@microsoft.com>

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

Signed-off-by: Long Li <longli@microsoft.com>
---
 fs/cifs/transport.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff mbox series

Patch

diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index e678307..4001842 100644
--- 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"
 
 void
 cifs_wake_up_task(struct mid_q_entry *mid)
@@ -229,7 +230,10 @@  __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;
 
@@ -298,7 +302,7 @@  __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst)
 		 */
 		server->tcpStatus = CifsNeedReconnect;
 	}
-
+smbd_done:
 	if (rc < 0 && rc != -EINTR)
 		cifs_dbg(VFS, "Error %d sending data on socket to server\n",
 			 rc);