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,
Tom Talpey <ttalpey@microsoft.com>,
Matthew Wilcox <mawilcox@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>
Cc: Long Li <longli@microsoft.com>
Subject: [Patch v5 15/21] CIFS: SMBD: Upper layer sends data via RDMA send
Date: Wed, 18 Oct 2017 16:09:14 -0700 [thread overview]
Message-ID: <20171018230920.21042-16-longli@exchange.microsoft.com> (raw)
In-Reply-To: <20171018230920.21042-1-longli@exchange.microsoft.com>
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 | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 7efbab0..1b51d08 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -37,6 +37,9 @@
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
+#ifdef CONFIG_CIFS_SMB_DIRECT
+#include "smbdirect.h"
+#endif
void
cifs_wake_up_task(struct mid_q_entry *mid)
@@ -229,7 +232,12 @@ __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst)
struct socket *ssocket = server->ssocket;
struct msghdr smb_msg;
int val = 1;
-
+#ifdef CONFIG_CIFS_SMB_DIRECT
+ if (server->smbd_conn) {
+ rc = smbd_send(server->smbd_conn, rqst);
+ goto smbd_done;
+ }
+#endif
if (ssocket == NULL)
return -ENOTSOCK;
@@ -298,7 +306,9 @@ __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst)
*/
server->tcpStatus = CifsNeedReconnect;
}
-
+#ifdef CONFIG_CIFS_SMB_DIRECT
+smbd_done:
+#endif
if (rc < 0 && rc != -EINTR)
cifs_dbg(VFS, "Error %d sending data on socket to server\n",
rc);
--
2.7.4
next prev parent reply other threads:[~2017-10-18 23:11 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-18 23:08 [Patch v5 00/21] CIFS: Implement SMB Direct protocol Long Li
2017-10-18 23:09 ` [Patch v5 01/21] CIFS: SMBD: Add SMB Direct protocol initial values and constants Long Li
2017-10-18 23:09 ` [Patch v5 02/21] CIFS: SMBD: Establish SMB Direct connection Long Li
2017-11-01 17:19 ` Pavel Shilovsky
2017-11-01 18:48 ` Long Li
2017-10-18 23:09 ` [Patch v5 03/21] CIFS: SMBD: export protocol initial values Long Li
2017-10-18 23:09 ` [Patch v5 04/21] CIFS: SMBD: Add rdma mount option Long Li
2017-10-18 23:09 ` [Patch v5 05/21] CIFS: SMBD: Implement function to create a SMB Direct connection Long Li
2017-10-18 23:09 ` [Patch v5 06/21] CIFS: SMBD: Upper layer connects to SMBDirect session Long Li
2017-10-18 23:09 ` [Patch v5 07/21] CIFS: SMBD: Implement function to reconnect to a SMB Direct transport Long Li
2017-10-18 23:09 ` [Patch v5 08/21] CIFS: SMBD: Upper layer reconnects to SMB Direct session Long Li
2017-11-01 18:04 ` Pavel Shilovsky
2017-11-01 19:44 ` Matthew Wilcox
2017-11-05 18:37 ` Long Li
2017-11-05 19:19 ` Long Li
2017-11-06 18:10 ` Matthew Wilcox
2017-11-06 18:59 ` Long Li
2017-11-06 20:25 ` Tom Talpey
2017-11-06 20:46 ` Long Li
2017-10-18 23:09 ` [Patch v5 09/21] CIFS: SMBD: Implement function to destroy a SMB Direct connection Long Li
2017-10-18 23:09 ` [Patch v5 10/21] CIFS: SMBD: Upper layer destroys SMB Direct session on shutdown or umount Long Li
2017-10-18 23:09 ` [Patch v5 11/21] CIFS: SMBD: Set SMB Direct maximum read or write size for I/O Long Li
2017-10-18 23:09 ` [Patch v5 12/21] CIFS: SMBD: Implement function to receive data via RDMA receive Long Li
2017-10-18 23:09 ` [Patch v5 13/21] CIFS: SMBD: Upper layer receives " Long Li
2017-10-18 23:09 ` [Patch v5 14/21] CIFS: SMBD: Implement function to send data via RDMA send Long Li
2017-10-18 23:09 ` Long Li [this message]
2017-10-18 23:09 ` [Patch v5 16/21] CIFS: SMBD: Implement RDMA memory registration Long Li
2017-10-18 23:09 ` [Patch v5 17/21] CIFS: SMBD: Upper layer performs SMB write via RDMA read through " Long Li
2017-10-18 23:09 ` [Patch v5 18/21] CIFS: SMBD: Add parameter rdata to smb2_new_read_req Long Li
2017-10-18 23:09 ` [Patch v5 19/21] CIFS: SMBD: Read correct returned data length for RDMA write (SMB read) I/O Long Li
2017-11-01 16:50 ` Pavel Shilovsky
2017-11-01 18:48 ` Long Li
2017-10-18 23:09 ` [Patch v5 20/21] CIFS: SMBD: Upper layer performs SMB read via RDMA write through memory registration Long Li
2017-10-18 23:09 ` [Patch v5 21/21] CIFS: SMBD: Add SMB Direct debug counters Long Li
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