9p: Reorganization of 9p file system code

This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p.
It moves the transport, packet marshalling and connection layers to net/9p
leaving only the VFS related files in fs/9p.  This work is being done in
preparation for in-kernel 9p servers as well as alternate 9p clients (other
than VFS).

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

1 files changed, 57 insertions, 0 deletions

diff --git a/include/net/9p/conn.h b/include/net/9p/conn.h
new file mode 100644
index 000000000000..583b6a2cb3df
--- /dev/null
+++ b/include/net/9p/conn.h
@@ -0,0 +1,57 @@
+/*
+ * include/net/9p/conn.h
+ *
+ * Connection Definitions
+ *
+ *  Copyright (C) 2005 by Latchesar Ionkov <lucho@ionkov.net>
+ *  Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2
+ *  as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to:
+ *  Free Software Foundation
+ *  51 Franklin Street, Fifth Floor
+ *  Boston, MA  02111-1301  USA
+ *
+ */
+
+#ifndef NET_9P_CONN_H
+#define NET_9P_CONN_H
+
+#undef P9_NONBLOCK
+
+struct p9_conn;
+struct p9_req;
+
+/**
+ * p9_mux_req_callback - callback function that is called when the
+ * response of a request is received. The callback is called from
+ * a workqueue and shouldn't block.
+ *
+ * @req - request
+ * @a - the pointer that was specified when the request was send to be
+ *      passed to the callback
+ */
+typedef void (*p9_conn_req_callback)(struct p9_req *req, void *a);
+
+struct p9_conn *p9_conn_create(struct p9_transport *trans, int msize,
+        unsigned char *dotu);
+void p9_conn_destroy(struct p9_conn *);
+int p9_conn_rpc(struct p9_conn *m, struct p9_fcall *tc, struct p9_fcall **rc);
+
+#ifdef P9_NONBLOCK
+int p9_conn_rpcnb(struct p9_conn *m, struct p9_fcall *tc,
+        p9_conn_req_callback cb, void *a);
+#endif /* P9_NONBLOCK */
+
+void p9_conn_cancel(struct p9_conn *m, int err);
+
+#endif /* NET_9P_CONN_H */