Commit 6f69c395 authored by Venkateswararao Jujjuri (JV)'s avatar Venkateswararao Jujjuri (JV) Committed by Eric Van Hensbergen
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[net/9p] Add preferences to transport layer.

This patch adds preferences field to the p9_trans_module.
Through this, now transport layer can express its preference about the
payload. i.e if payload neds to be part of the PDU or it prefers it
to be sent sepearetly so that the transport layer can handle it in
a better way.
Signed-off-by: default avatarVenkateswararao Jujjuri <>
Signed-off-by: default avatarEric Van Hensbergen <>
parent 4038866d
......@@ -26,11 +26,19 @@
/* Default. Add Payload to PDU before sending it down to transport layer */
/* Send pay load seperately to transport layer along with PDU.*/
* 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 *);
......@@ -566,6 +566,7 @@ static struct p9_trans_module p9_virtio_trans = {
.request = p9_virtio_request,
.cancel = p9_virtio_cancel,
.maxsize = PAGE_SIZE*16,
.def = 0,
.owner = THIS_MODULE,
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