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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>
Cc: Long Li <longli@microsoft.com>
Subject: [Patch v3 10/19] CIFS: SMBD: Send data through SMBDirect
Date: Tue, 29 Aug 2017 12:29:06 -0700	[thread overview]
Message-ID: <20170829192915.26251-11-longli@exchange.microsoft.com> (raw)
In-Reply-To: <20170829192915.26251-1-longli@exchange.microsoft.com>

From: Long Li <longli@microsoft.com>

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

Signed-off-by: Long Li <longli@microsoft.com>
---
 fs/cifs/transport.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index ba62aaf..bddb699 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)
@@ -230,6 +231,11 @@ __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst)
 	struct msghdr smb_msg;
 	int val = 1;
 
+	if (server->smbd_conn) {
+		rc = smbd_send(server->smbd_conn, rqst);
+		goto done;
+	}
+
 	if (ssocket == NULL)
 		return -ENOTSOCK;
 
@@ -299,6 +305,7 @@ __smb_send_rqst(struct TCP_Server_Info *server, struct smb_rqst *rqst)
 		server->tcpStatus = CifsNeedReconnect;
 	}
 
+done:
 	if (rc < 0 && rc != -EINTR)
 		cifs_dbg(VFS, "Error %d sending data on socket to server\n",
 			 rc);
-- 
2.7.4

  parent reply	other threads:[~2017-08-29 19:35 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-29 19:28 [Patch v3 00/19] CIFS: Implement SMB Direct Long Li
2017-08-29 19:28 ` [Patch v3 01/19] CIFS: Add rdma mount option Long Li
2017-08-29 22:37   ` Pavel Shilovsky
2017-08-29 22:56     ` Long Li
2017-08-29 19:28 ` [Patch v3 02/19] CIFS: SMBD: Add SMBDirect protocol and transport constants Long Li
2017-08-29 22:44   ` Pavel Shilovsky
2017-08-29 23:00     ` Long Li
2017-08-30 18:19       ` Pavel Shilovsky
2017-08-30 18:24         ` Long Li
2017-08-30 18:30           ` Pavel Shilovsky
2017-09-01 15:48             ` Steve French
2017-08-29 19:28 ` [Patch v3 03/19] CIFS: SMBD: Implement SMBDirect transport Long Li
2017-08-29 19:29 ` [Patch v3 04/19] CIFS: SMBD: Add SMBDirect transport to SMB connection and Makefile Long Li
2017-08-29 23:11   ` Pavel Shilovsky
2017-08-29 23:14     ` Long Li
2017-08-29 19:29 ` [Patch v3 05/19] CIFS: SMBD: Connect to SMBDirect session Long Li
2017-08-29 19:29 ` [Patch v3 06/19] CIFS: SMBD: Reconnect " Long Li
2017-08-29 23:15   ` Pavel Shilovsky
2017-08-29 23:39     ` Long Li
2017-08-29 19:29 ` [Patch v3 07/19] CIFS: SMBD: Destroy SMBDirect session on shutdown or umount Long Li
2017-08-29 19:29 ` [Patch v3 08/19] CIFS: SMBD: Set SMBDirect maximum read or write size for I/O Long Li
2017-08-29 19:29 ` [Patch v3 09/19] CIFS: SMBD: Receive data from SMBDirect Long Li
2017-08-29 19:29 ` Long Li [this message]
2017-08-29 19:29 ` [Patch v3 11/19] CIFS: SMBD: Define memory registration for I/O data Long Li
2017-08-30  0:48   ` Pavel Shilovsky
2017-08-30  2:12     ` Long Li
2017-08-29 19:29 ` [Patch v3 12/19] CIFS: SMBD: Fix the definition for SMB2_CHANNEL_RDMA_V1_INVALIDATE Long Li
2017-08-30  0:50   ` Pavel Shilovsky
2017-08-30  2:11     ` Long Li
2017-08-29 19:29 ` [Patch v3 13/19] CIFS: SMBD: Implement SMB write via RDMA read through memory registration Long Li
2017-08-29 19:29 ` [Patch v3 14/19] CIFS: SMBD: Deregister memory on finishing SMB write Long Li
2017-08-29 19:29 ` [Patch v3 15/19] CIFS: SMBD: Add parameter rdata to smb2_new_read_req Long Li
2017-08-29 19:29 ` [Patch v3 16/19] CIFS: SMBD: Read correct returned data length for RDMA write (SMB read) I/O Long Li
2017-08-29 19:29 ` [Patch v3 17/19] CIFS: SMBD: Implement SMB read via RDMA write through memory registration Long Li
2017-08-29 19:29 ` [Patch v3 18/19] CIFS: SMBD: Deregister memory when finishing SMB read Long Li
2017-08-29 19:29 ` [Patch v3 19/19] CIFS: SMBD: Add SMBDirect debug counters Long Li
2017-08-30 18:40 ` [Patch v3 00/19] CIFS: Implement SMB Direct Long Li

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