SUNRPC: rpc_xprt lifetime events should record xprt->state

Help troubleshoot the logic that uses these flags.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h
index 098c847..73193c7 100644 (file)
--- a/include/trace/events/sunrpc.h
+++ b/include/trace/events/sunrpc.h
@@ -835,6 +835,30 @@ DEFINE_RPC_SOCKET_EVENT_DONE(rpc_socket_reset_connection);
 DEFINE_RPC_SOCKET_EVENT(rpc_socket_close);
 DEFINE_RPC_SOCKET_EVENT(rpc_socket_shutdown);
 
+TRACE_DEFINE_ENUM(XPRT_LOCKED);
+TRACE_DEFINE_ENUM(XPRT_CONNECTED);
+TRACE_DEFINE_ENUM(XPRT_CONNECTING);
+TRACE_DEFINE_ENUM(XPRT_CLOSE_WAIT);
+TRACE_DEFINE_ENUM(XPRT_BOUND);
+TRACE_DEFINE_ENUM(XPRT_BINDING);
+TRACE_DEFINE_ENUM(XPRT_CLOSING);
+TRACE_DEFINE_ENUM(XPRT_CONGESTED);
+TRACE_DEFINE_ENUM(XPRT_CWND_WAIT);
+TRACE_DEFINE_ENUM(XPRT_WRITE_SPACE);
+
+#define rpc_show_xprt_state(x)                                         \
+       __print_flags(x, "|",                                           \
+               { (1UL << XPRT_LOCKED),         "LOCKED"},              \
+               { (1UL << XPRT_CONNECTED),      "CONNECTED"},           \
+               { (1UL << XPRT_CONNECTING),     "CONNECTING"},          \
+               { (1UL << XPRT_CLOSE_WAIT),     "CLOSE_WAIT"},          \
+               { (1UL << XPRT_BOUND),          "BOUND"},               \
+               { (1UL << XPRT_BINDING),        "BINDING"},             \
+               { (1UL << XPRT_CLOSING),        "CLOSING"},             \
+               { (1UL << XPRT_CONGESTED),      "CONGESTED"},           \
+               { (1UL << XPRT_CWND_WAIT),      "CWND_WAIT"},           \
+               { (1UL << XPRT_WRITE_SPACE),    "WRITE_SPACE"})
+
 DECLARE_EVENT_CLASS(rpc_xprt_lifetime_class,
        TP_PROTO(
                const struct rpc_xprt *xprt
@@ -843,16 +867,20 @@ DECLARE_EVENT_CLASS(rpc_xprt_lifetime_class,
        TP_ARGS(xprt),
 
        TP_STRUCT__entry(
+               __field(unsigned long, state)
                __string(addr, xprt->address_strings[RPC_DISPLAY_ADDR])
                __string(port, xprt->address_strings[RPC_DISPLAY_PORT])
        ),
 
        TP_fast_assign(
+               __entry->state = xprt->state;
                __assign_str(addr, xprt->address_strings[RPC_DISPLAY_ADDR]);
                __assign_str(port, xprt->address_strings[RPC_DISPLAY_PORT]);
        ),
 
-       TP_printk("peer=[%s]:%s", __get_str(addr), __get_str(port))
+       TP_printk("peer=[%s]:%s state=%s",
+               __get_str(addr), __get_str(port),
+               rpc_show_xprt_state(__entry->state))
 );
 
 #define DEFINE_RPC_XPRT_LIFETIME_EVENT(name) \