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authorDavid Howells <dhowells@redhat.com>2016-09-17 12:49:13 +0300
committerDavid Howells <dhowells@redhat.com>2016-09-17 13:24:03 +0300
commit58dc63c998ea3c5a27e2bf9251eddbf0977056a6 (patch)
tree8567efc32e9fb834e90290adcb3ff3a7a1f06610 /include/trace
parentf3639df2d90bc919328c459b3c7c49ed5667a52f (diff)
downloadlinux-58dc63c998ea3c5a27e2bf9251eddbf0977056a6.tar.xz
rxrpc: Add a tracepoint to follow packets in the Rx buffer
Add a tracepoint to follow the life of packets that get added to a call's receive buffer. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/rxrpc.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index d545d692ae22..7dd5f0188681 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -290,6 +290,39 @@ TRACE_EVENT(rxrpc_tx_ack,
__entry->n_acks)
);
+TRACE_EVENT(rxrpc_receive,
+ TP_PROTO(struct rxrpc_call *call, enum rxrpc_receive_trace why,
+ rxrpc_serial_t serial, rxrpc_seq_t seq),
+
+ TP_ARGS(call, why, serial, seq),
+
+ TP_STRUCT__entry(
+ __field(struct rxrpc_call *, call )
+ __field(enum rxrpc_receive_trace, why )
+ __field(rxrpc_serial_t, serial )
+ __field(rxrpc_seq_t, seq )
+ __field(rxrpc_seq_t, hard_ack )
+ __field(rxrpc_seq_t, top )
+ ),
+
+ TP_fast_assign(
+ __entry->call = call;
+ __entry->why = why;
+ __entry->serial = serial;
+ __entry->seq = seq;
+ __entry->hard_ack = call->rx_hard_ack;
+ __entry->top = call->rx_top;
+ ),
+
+ TP_printk("c=%p %s r=%08x q=%08x w=%08x-%08x",
+ __entry->call,
+ rxrpc_receive_traces[__entry->why],
+ __entry->serial,
+ __entry->seq,
+ __entry->hard_ack,
+ __entry->top)
+ );
+
#endif /* _TRACE_RXRPC_H */
/* This part must be outside protection */