linux-kernel - Re: [Patch v6 07/22] CIFS: SMBD: Implement function to create a SMB Direct connection

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Message-ID: <1711300759.28570763.1511163530669.JavaMail.zimbra@redhat.com>
Date:   Mon, 20 Nov 2017 02:38:50 -0500 (EST)
From:   Leif Sahlberg <lsahlber@...hat.com>
To:     Long Li <longli@...hange.microsoft.com>
Cc:     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>,
        Long Li <longli@...rosoft.com>
Subject: Re: [Patch v6 07/22] CIFS: SMBD: Implement function to create a SMB
 Direct connection

Acked-by: Ronnie Sahlberg <lsahlber@...hat.com>


----- Original Message -----
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>
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@...rosoft.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@...rosoft.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;
+}
-- 
2.7.4

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