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Diffstat (limited to 'include/linux/sunrpc/xprt.h')
-rw-r--r--include/linux/sunrpc/xprt.h21
1 files changed, 19 insertions, 2 deletions
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 1175d58efc2e..6f9457a75b8f 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -38,10 +38,8 @@ enum rpc_display_format_t {
38 RPC_DISPLAY_ADDR = 0, 38 RPC_DISPLAY_ADDR = 0,
39 RPC_DISPLAY_PORT, 39 RPC_DISPLAY_PORT,
40 RPC_DISPLAY_PROTO, 40 RPC_DISPLAY_PROTO,
41 RPC_DISPLAY_ALL,
42 RPC_DISPLAY_HEX_ADDR, 41 RPC_DISPLAY_HEX_ADDR,
43 RPC_DISPLAY_HEX_PORT, 42 RPC_DISPLAY_HEX_PORT,
44 RPC_DISPLAY_UNIVERSAL_ADDR,
45 RPC_DISPLAY_NETID, 43 RPC_DISPLAY_NETID,
46 RPC_DISPLAY_MAX, 44 RPC_DISPLAY_MAX,
47}; 45};
@@ -126,6 +124,23 @@ struct rpc_xprt_ops {
126 void (*print_stats)(struct rpc_xprt *xprt, struct seq_file *seq); 124 void (*print_stats)(struct rpc_xprt *xprt, struct seq_file *seq);
127}; 125};
128 126
127/*
128 * RPC transport identifiers
129 *
130 * To preserve compatibility with the historical use of raw IP protocol
131 * id's for transport selection, UDP and TCP identifiers are specified
132 * with the previous values. No such restriction exists for new transports,
133 * except that they may not collide with these values (17 and 6,
134 * respectively).
135 */
136#define XPRT_TRANSPORT_BC (1 << 31)
137enum xprt_transports {
138 XPRT_TRANSPORT_UDP = IPPROTO_UDP,
139 XPRT_TRANSPORT_TCP = IPPROTO_TCP,
140 XPRT_TRANSPORT_BC_TCP = IPPROTO_TCP | XPRT_TRANSPORT_BC,
141 XPRT_TRANSPORT_RDMA = 256
142};
143
129struct rpc_xprt { 144struct rpc_xprt {
130 struct kref kref; /* Reference count */ 145 struct kref kref; /* Reference count */
131 struct rpc_xprt_ops * ops; /* transport methods */ 146 struct rpc_xprt_ops * ops; /* transport methods */
@@ -181,6 +196,7 @@ struct rpc_xprt {
181 spinlock_t reserve_lock; /* lock slot table */ 196 spinlock_t reserve_lock; /* lock slot table */
182 u32 xid; /* Next XID value to use */ 197 u32 xid; /* Next XID value to use */
183 struct rpc_task * snd_task; /* Task blocked in send */ 198 struct rpc_task * snd_task; /* Task blocked in send */
199 struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */
184#if defined(CONFIG_NFS_V4_1) 200#if defined(CONFIG_NFS_V4_1)
185 struct svc_serv *bc_serv; /* The RPC service which will */ 201 struct svc_serv *bc_serv; /* The RPC service which will */
186 /* process the callback */ 202 /* process the callback */
@@ -233,6 +249,7 @@ struct xprt_create {
233 struct sockaddr * srcaddr; /* optional local address */ 249 struct sockaddr * srcaddr; /* optional local address */
234 struct sockaddr * dstaddr; /* remote peer address */ 250 struct sockaddr * dstaddr; /* remote peer address */
235 size_t addrlen; 251 size_t addrlen;
252 struct svc_xprt *bc_xprt; /* NFSv4.1 backchannel */
236}; 253};
237 254
238struct xprt_class { 255struct xprt_class {