[v6,07/22] CIFS: SMBD: Implement function to create a SMB Direct connection

Message ID 20171105054404.23886-8-longli@exchange.microsoft.com
State New
Headers show
Series
  • CIFS: Implement SMB Direct protocol
Related show

Commit Message

Long Li Nov. 5, 2017, 5:43 a.m.
From: Long Li <longli@microsoft.com>

The upper layer calls this function to connect to peer through SMB Direct.
Each SMB Direct connection is based on a RDMA RC Queue Pair.

Signed-off-by: Long Li <longli@microsoft.com>
---
 fs/cifs/smbdirect.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

Comments

Leif Sahlberg Nov. 20, 2017, 7:38 a.m. | #1
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>


----- Original Message -----
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>
Sent: Sunday, 5 November, 2017 4:43:49 PM
Subject: [Patch v6 07/22] CIFS: SMBD: Implement function to create a SMB Direct connection

From: Long Li <longli@microsoft.com>

The upper layer calls this function to connect to peer through SMB Direct.
Each SMB Direct connection is based on a RDMA RC Queue Pair.

Signed-off-by: Long Li <longli@microsoft.com>
---
 fs/cifs/smbdirect.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index 7af49cd..47d999f 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -1652,3 +1652,20 @@ struct smbd_connection *_smbd_get_connection(
 	kfree(info);
 	return NULL;
 }
+
+struct smbd_connection *smbd_get_connection(
+	struct TCP_Server_Info *server, struct sockaddr *dstaddr)
+{
+	struct smbd_connection *ret;
+	int port = SMBD_PORT;
+
+try_again:
+	ret = _smbd_get_connection(server, dstaddr, port);
+
+	/* Try SMB_PORT if SMBD_PORT doesn't work */
+	if (!ret && port == SMBD_PORT) {
+		port = SMB_PORT;
+		goto try_again;
+	}
+	return ret;
+}

Patch

diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index 7af49cd..47d999f 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -1652,3 +1652,20 @@  struct smbd_connection *_smbd_get_connection(
 	kfree(info);
 	return NULL;
 }
+
+struct smbd_connection *smbd_get_connection(
+	struct TCP_Server_Info *server, struct sockaddr *dstaddr)
+{
+	struct smbd_connection *ret;
+	int port = SMBD_PORT;
+
+try_again:
+	ret = _smbd_get_connection(server, dstaddr, port);
+
+	/* Try SMB_PORT if SMBD_PORT doesn't work */
+	if (!ret && port == SMBD_PORT) {
+		port = SMB_PORT;
+		goto try_again;
+	}
+	return ret;
+}