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[v5,05/21] CIFS: SMBD: Implement function to create a SMB Direct connection

Message ID 20171018230920.21042-6-longli@exchange.microsoft.com
State New
Headers show
Series CIFS: Implement SMB Direct protocol | expand

Commit Message

Long Li Oct. 18, 2017, 11:09 p.m. UTC 
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(+)
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Patch

diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index e5524e9..4bbb13b 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -1651,3 +1651,20 @@  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;
+}