@@ -26,11 +26,19 @@
#ifndef NET_9P_TRANSPORT_H
#define NET_9P_TRANSPORT_H
+#define P9_TRANS_PREF_PAYLOAD_MASK 0x1
+
+/* Default. Add Payload to PDU before sending it down to transport layer */
+#define P9_TRANS_PREF_PAYLOAD_DEF 0x0
+/* Send pay load seperately to transport layer along with PDU.*/
+#define P9_TRANS_PREF_PAYLOAD_SEP 0x1
+
/**
* struct p9_trans_module - transport module interface
* @list: used to maintain a list of currently available transports
* @name: the human-readable name of the transport
* @maxsize: transport provided maximum packet size
+ * @pref: Preferences of this transport
* @def: set if this transport should be considered the default
* @create: member function to create a new connection on this transport
* @request: member function to issue a request to the transport
@@ -47,6 +55,7 @@ struct p9_trans_module {
struct list_head list;
char *name; /* name of transport */
int maxsize; /* max message size of transport */
+ int pref; /* Preferences of this transport */
int def; /* this transport should be default */
struct module *owner;
int (*create)(struct p9_client *, const char *, char *);
@@ -521,6 +521,7 @@ static struct p9_trans_module p9_virtio_trans = {
.request = p9_virtio_request,
.cancel = p9_virtio_cancel,
.maxsize = PAGE_SIZE*16,
+ .pref = P9_TRANS_PREF_PAYLOAD_DEF,
.def = 0,
.owner = THIS_MODULE,
};