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author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-09-04 20:16:23 +0400 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2013-09-04 20:26:31 +0400 |
commit | 40b5ea0c25669cb99ba7f4836437a7ebaba91408 (patch) | |
tree | 756eab3cf0403304bf922472308676e7396dc2c1 /include | |
parent | b6a85258d8223a87e7ecf25791e634617a159f79 (diff) | |
download | linux-40b5ea0c25669cb99ba7f4836437a7ebaba91408.tar.xz |
SUNRPC: Add tracepoints to help debug socket connection issues
Add client side debugging to help trace socket connection/disconnection
and unexpected state change issues.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/trace/events/sunrpc.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/include/trace/events/sunrpc.h b/include/trace/events/sunrpc.h index 43be87d5dd58..b74a8acd38fa 100644 --- a/include/trace/events/sunrpc.h +++ b/include/trace/events/sunrpc.h @@ -6,6 +6,8 @@ #include <linux/sunrpc/sched.h> #include <linux/sunrpc/clnt.h> +#include <net/tcp_states.h> +#include <linux/net.h> #include <linux/tracepoint.h> DECLARE_EVENT_CLASS(rpc_task_status, @@ -172,6 +174,135 @@ DEFINE_EVENT(rpc_task_queued, rpc_task_wakeup, ); +#define rpc_show_socket_state(state) \ + __print_symbolic(state, \ + { SS_FREE, "FREE" }, \ + { SS_UNCONNECTED, "UNCONNECTED" }, \ + { SS_CONNECTING, "CONNECTING," }, \ + { SS_CONNECTED, "CONNECTED," }, \ + { SS_DISCONNECTING, "DISCONNECTING" }) + +#define rpc_show_sock_state(state) \ + __print_symbolic(state, \ + { TCP_ESTABLISHED, "ESTABLISHED" }, \ + { TCP_SYN_SENT, "SYN_SENT" }, \ + { TCP_SYN_RECV, "SYN_RECV" }, \ + { TCP_FIN_WAIT1, "FIN_WAIT1" }, \ + { TCP_FIN_WAIT2, "FIN_WAIT2" }, \ + { TCP_TIME_WAIT, "TIME_WAIT" }, \ + { TCP_CLOSE, "CLOSE" }, \ + { TCP_CLOSE_WAIT, "CLOSE_WAIT" }, \ + { TCP_LAST_ACK, "LAST_ACK" }, \ + { TCP_LISTEN, "LISTEN" }, \ + { TCP_CLOSING, "CLOSING" }) + +DECLARE_EVENT_CLASS(xs_socket_event, + + TP_PROTO( + struct rpc_xprt *xprt, + struct socket *socket + ), + + TP_ARGS(xprt, socket), + + TP_STRUCT__entry( + __field(unsigned int, socket_state) + __field(unsigned int, sock_state) + __field(unsigned long long, ino) + __string(dstaddr, + xprt->address_strings[RPC_DISPLAY_ADDR]) + __string(dstport, + xprt->address_strings[RPC_DISPLAY_PORT]) + ), + + TP_fast_assign( + struct inode *inode = SOCK_INODE(socket); + __entry->socket_state = socket->state; + __entry->sock_state = socket->sk->sk_state; + __entry->ino = (unsigned long long)inode->i_ino; + __assign_str(dstaddr, + xprt->address_strings[RPC_DISPLAY_ADDR]); + __assign_str(dstport, + xprt->address_strings[RPC_DISPLAY_PORT]); + ), + + TP_printk( + "socket:[%llu] dstaddr=%s/%s " + "state=%u (%s) sk_state=%u (%s)", + __entry->ino, __get_str(dstaddr), __get_str(dstport), + __entry->socket_state, + rpc_show_socket_state(__entry->socket_state), + __entry->sock_state, + rpc_show_sock_state(__entry->sock_state) + ) +); +#define DEFINE_RPC_SOCKET_EVENT(name) \ + DEFINE_EVENT(xs_socket_event, name, \ + TP_PROTO( \ + struct rpc_xprt *xprt, \ + struct socket *socket \ + ), \ + TP_ARGS(xprt, socket)) + +DECLARE_EVENT_CLASS(xs_socket_event_done, + + TP_PROTO( + struct rpc_xprt *xprt, + struct socket *socket, + int error + ), + + TP_ARGS(xprt, socket, error), + + TP_STRUCT__entry( + __field(int, error) + __field(unsigned int, socket_state) + __field(unsigned int, sock_state) + __field(unsigned long long, ino) + __string(dstaddr, + xprt->address_strings[RPC_DISPLAY_ADDR]) + __string(dstport, + xprt->address_strings[RPC_DISPLAY_PORT]) + ), + + TP_fast_assign( + struct inode *inode = SOCK_INODE(socket); + __entry->socket_state = socket->state; + __entry->sock_state = socket->sk->sk_state; + __entry->ino = (unsigned long long)inode->i_ino; + __entry->error = error; + __assign_str(dstaddr, + xprt->address_strings[RPC_DISPLAY_ADDR]); + __assign_str(dstport, + xprt->address_strings[RPC_DISPLAY_PORT]); + ), + + TP_printk( + "error=%d socket:[%llu] dstaddr=%s/%s " + "state=%u (%s) sk_state=%u (%s)", + __entry->error, + __entry->ino, __get_str(dstaddr), __get_str(dstport), + __entry->socket_state, + rpc_show_socket_state(__entry->socket_state), + __entry->sock_state, + rpc_show_sock_state(__entry->sock_state) + ) +); +#define DEFINE_RPC_SOCKET_EVENT_DONE(name) \ + DEFINE_EVENT(xs_socket_event_done, name, \ + TP_PROTO( \ + struct rpc_xprt *xprt, \ + struct socket *socket, \ + int error \ + ), \ + TP_ARGS(xprt, socket, error)) + +DEFINE_RPC_SOCKET_EVENT(rpc_socket_state_change); +DEFINE_RPC_SOCKET_EVENT_DONE(rpc_socket_connect); +DEFINE_RPC_SOCKET_EVENT_DONE(rpc_socket_reset_connection); +DEFINE_RPC_SOCKET_EVENT(rpc_socket_close); +DEFINE_RPC_SOCKET_EVENT(rpc_socket_shutdown); + #endif /* _TRACE_SUNRPC_H */ #include <trace/define_trace.h> |