linux-kernel - [Patch v6 15/22] CIFS: SMBD: Upper layer receives data via RDMA receive

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Message-Id: <20171105054404.23886-16-longli@exchange.microsoft.com>
Date:   Sat,  4 Nov 2017 22:43:57 -0700
From:   Long Li <longli@...hange.microsoft.com>
To:     Steve French <sfrench@...ba.org>, linux-cifs@...r.kernel.org,
        samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org,
        linux-rdma@...r.kernel.org, Christoph Hellwig <hch@...radead.org>,
        Tom Talpey <ttalpey@...rosoft.com>,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        Stephen Hemminger <sthemmin@...rosoft.com>
Cc:     Long Li <longli@...rosoft.com>
Subject: [Patch v6 15/22] CIFS: SMBD: Upper layer receives data via RDMA receive

From: Long Li <longli@...rosoft.com>

With SMB Direct connected, use it for receiving data via RDMA receive.

Signed-off-by: Long Li <longli@...rosoft.com>
---
 fs/cifs/connect.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 23f10d1..6325062 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -545,8 +545,14 @@ cifs_readv_from_socket(struct TCP_Server_Info *server, struct msghdr *smb_msg)
 
 		if (server_unresponsive(server))
 			return -ECONNABORTED;
-
+#ifdef CONFIG_CIFS_SMB_DIRECT
+		if (server->smbd_conn)
+			length = smbd_recv(server->smbd_conn, smb_msg);
+		else
+			length = sock_recvmsg(server->ssocket, smb_msg, 0);
+#else
 		length = sock_recvmsg(server->ssocket, smb_msg, 0);
+#endif
 
 		if (server->tcpStatus == CifsExiting)
 			return -ESHUTDOWN;
-- 
2.7.4