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Subject[Patch v4 05/22] CIFS: SMBD: Implement function to create a SMBDirect connection
Date
From: Long Li <longli@microsoft.com>

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

Signed-off-by: Long Li <longli@microsoft.com>
---
fs/cifs/smbdirect.c | 17 +++++++++++++++++
fs/cifs/smbdirect.h | 4 ++++
2 files changed, 21 insertions(+)

diff --git a/fs/cifs/smbdirect.c b/fs/cifs/smbdirect.c
index e8f976f..34f73e2 100644
--- a/fs/cifs/smbdirect.c
+++ b/fs/cifs/smbdirect.c
@@ -1675,3 +1675,20 @@ 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;
+}
diff --git a/fs/cifs/smbdirect.h b/fs/cifs/smbdirect.h
index ca60700..42a9338 100644
--- a/fs/cifs/smbdirect.h
+++ b/fs/cifs/smbdirect.h
@@ -245,6 +245,10 @@ struct smbd_response {
u8 packet[];
};

+/* Create a SMBDirect session */
+struct smbd_connection *smbd_get_connection(
+ struct TCP_Server_Info *server, struct sockaddr *dstaddr);
+
void profiling_display_histogram(
struct seq_file *m, unsigned long long array[]);
#endif
--
2.7.4
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