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author\"Talpey, Thomas\ <Thomas.Talpey@netapp.com>2007-09-10 13:47:57 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2007-10-09 17:17:50 -0400
commit4fa016eb248cac875541fa199af550a8aefa0e90 (patch)
tree2a8aad2ebc1a05174d0eacaceb671bca6b24850c /include/linux/sunrpc
parent49c36fcc441baf6a4d698e3645d1adf28edaf57b (diff)
NFS/SUNRPC: support transport protocol naming
To prepare for including non-sockets-based RPC transports, select RPC transports by an identifier (to be used in following patches). Signed-off-by: Tom Talpey <tmt@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/sunrpc')
-rw-r--r--include/linux/sunrpc/xprt.h5
-rw-r--r--include/linux/sunrpc/xprtsock.h11
2 files changed, 13 insertions, 3 deletions
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index d7b8fcd312c..30b17b3bc1a 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -187,7 +187,7 @@ struct rpc_xprt {
};
struct xprt_create {
- int proto; /* IPPROTO_UDP or IPPROTO_TCP */
+ int ident; /* XPRT_TRANSPORT identifier */
struct sockaddr * srcaddr; /* optional local address */
struct sockaddr * dstaddr; /* remote peer address */
size_t addrlen;
@@ -196,8 +196,7 @@ struct xprt_create {
struct xprt_class {
struct list_head list;
- unsigned short family;
- int protocol;
+ int ident; /* XPRT_TRANSPORT identifier */
struct rpc_xprt * (*setup)(struct xprt_create *);
struct module *owner;
char name[32];
diff --git a/include/linux/sunrpc/xprtsock.h b/include/linux/sunrpc/xprtsock.h
index 9bde77061e4..2c6c2c2783d 100644
--- a/include/linux/sunrpc/xprtsock.h
+++ b/include/linux/sunrpc/xprtsock.h
@@ -19,6 +19,17 @@ int init_socket_xprt(void);
void cleanup_socket_xprt(void);
/*
+ * RPC transport identifiers for UDP, TCP
+ *
+ * To preserve compatibility with the historical use of raw IP protocol
+ * id's for transport selection, these are specified with the previous
+ * values. No such restriction exists for new transports, except that
+ * they may not collide with these values (17 and 6, respectively).
+ */
+#define XPRT_TRANSPORT_UDP IPPROTO_UDP
+#define XPRT_TRANSPORT_TCP IPPROTO_TCP
+
+/*
* RPC slot table sizes for UDP, TCP transports
*/
extern unsigned int xprt_udp_slot_table_entries;