9P2010.L handshake: Add mount option
Add new mount V9FS mount option to specify protocol version
This patch adds a new mount option to specify protocol version.
With this option it is possible to use "-o version=" switch to
specify 9P protocol version to use. Valid options for version
are:
9p2000
9p2000.u
9p2010.L
Signed-off-by: Sripathi Kodi <sripathik@in.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
diff --git a/include/net/9p/client.h b/include/net/9p/client.h
index fb00b32..d40f8c5 100644
--- a/include/net/9p/client.h
+++ b/include/net/9p/client.h
@@ -29,6 +29,19 @@
/* Number of requests per row */
#define P9_ROW_MAXTAG 255
+/** enum p9_proto_versions - 9P protocol versions
+ * @p9_proto_legacy: 9P Legacy mode, pre-9P2000.u
+ * @p9_proto_2000u: 9P2000.u extension
+ * @p9_proto_2010L: 9P2010.L extension
+ */
+
+enum p9_proto_versions{
+ p9_proto_legacy = 0,
+ p9_proto_2000u = 1,
+ p9_proto_2010L = 2,
+};
+
+
/**
* enum p9_trans_status - different states of underlying transports
* @Connected: transport is connected and healthy
@@ -111,6 +124,7 @@
* @lock: protect @fidlist
* @msize: maximum data size negotiated by protocol
* @dotu: extension flags negotiated by protocol
+ * @proto_version: 9P protocol version to use
* @trans_mod: module API instantiated with this client
* @trans: tranport instance state and API
* @conn: connection state information used by trans_fd
@@ -138,6 +152,7 @@
spinlock_t lock; /* protect client structure */
int msize;
unsigned char dotu;
+ unsigned char proto_version;
struct p9_trans_module *trans_mod;
enum p9_trans_status status;
void *trans;