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-rw-r--r--include/net/9p/transport.h55
1 files changed, 7 insertions, 48 deletions
diff --git a/include/net/9p/transport.h b/include/net/9p/transport.h
index 3ca737120a90..3e0f2f6beba2 100644
--- a/include/net/9p/transport.h
+++ b/include/net/9p/transport.h
@@ -26,52 +26,6 @@
26#ifndef NET_9P_TRANSPORT_H 26#ifndef NET_9P_TRANSPORT_H
27#define NET_9P_TRANSPORT_H 27#define NET_9P_TRANSPORT_H
28 28
29#include <linux/module.h>
30
31/**
32 * enum p9_trans_status - different states of underlying transports
33 * @Connected: transport is connected and healthy
34 * @Disconnected: transport has been disconnected
35 * @Hung: transport is connected by wedged
36 *
37 * This enumeration details the various states a transport
38 * instatiation can be in.
39 */
40
41enum p9_trans_status {
42 Connected,
43 Disconnected,
44 Hung,
45};
46
47/**
48 * struct p9_trans - per-transport state and API
49 * @status: transport &p9_trans_status
50 * @msize: negotiated maximum packet size (duplicate from client)
51 * @extended: negotiated protocol extensions (duplicate from client)
52 * @priv: transport private data
53 * @close: member function to disconnect and close the transport
54 * @rpc: member function to issue a request to the transport
55 *
56 * This is the basic API for a transport instance. It is used as
57 * a handle by the client to issue requests. This interface is currently
58 * in flux during reorganization.
59 *
60 * Bugs: there is lots of duplicated data here and its not clear that
61 * the member functions need to be per-instance versus per transport
62 * module.
63 */
64
65struct p9_trans {
66 enum p9_trans_status status;
67 int msize;
68 unsigned char extended;
69 void *priv;
70 void (*close) (struct p9_trans *);
71 int (*rpc) (struct p9_trans *t, struct p9_fcall *tc,
72 struct p9_fcall **rc);
73};
74
75/** 29/**
76 * struct p9_trans_module - transport module interface 30 * struct p9_trans_module - transport module interface
77 * @list: used to maintain a list of currently available transports 31 * @list: used to maintain a list of currently available transports
@@ -79,12 +33,14 @@ struct p9_trans {
79 * @maxsize: transport provided maximum packet size 33 * @maxsize: transport provided maximum packet size
80 * @def: set if this transport should be considered the default 34 * @def: set if this transport should be considered the default
81 * @create: member function to create a new connection on this transport 35 * @create: member function to create a new connection on this transport
36 * @close: member function to disconnect and close the transport
37 * @rpc: member function to issue a request to the transport
82 * 38 *
83 * This is the basic API for a transport module which is registered by the 39 * This is the basic API for a transport module which is registered by the
84 * transport module with the 9P core network module and used by the client 40 * transport module with the 9P core network module and used by the client
85 * to instantiate a new connection on a transport. 41 * to instantiate a new connection on a transport.
86 * 42 *
87 * Bugs: the transport module list isn't protected. 43 * BUGS: the transport module list isn't protected.
88 */ 44 */
89 45
90struct p9_trans_module { 46struct p9_trans_module {
@@ -92,8 +48,11 @@ struct p9_trans_module {
92 char *name; /* name of transport */ 48 char *name; /* name of transport */
93 int maxsize; /* max message size of transport */ 49 int maxsize; /* max message size of transport */
94 int def; /* this transport should be default */ 50 int def; /* this transport should be default */
95 struct p9_trans * (*create)(const char *, char *, int, unsigned char);
96 struct module *owner; 51 struct module *owner;
52 int (*create)(struct p9_client *, const char *, char *);
53 void (*close) (struct p9_client *);
54 int (*rpc) (struct p9_client *t, struct p9_fcall *tc,
55 struct p9_fcall **rc);
97}; 56};
98 57
99void v9fs_register_trans(struct p9_trans_module *m); 58void v9fs_register_trans(struct p9_trans_module *m);