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authorDavid Howells <dhowells@redhat.com>2017-01-05 10:38:34 +0000
committerDavid Howells <dhowells@redhat.com>2017-01-05 11:39:12 +0000
commitb1d9f7fde0bb6c143a9a5b9246ea191e28f2c364 (patch)
treedacc3237dc81098e076b60aa6fe8ba80c22e746c /include/trace
parentb54a134a7de461f804cf0e28331d0a43ee82fb13 (diff)
downloadlinux-b1d9f7fde0bb6c143a9a5b9246ea191e28f2c364.tar.bz2
rxrpc: Add some more tracing
Add the following extra tracing information: (1) Modify the rxrpc_transmit tracepoint to record the Tx window size as this is varied by the slow-start algorithm. (2) Modify the rxrpc_rx_ack tracepoint to record more information from received ACK packets. (3) Add an rxrpc_rx_data tracepoint to record the information in DATA packets. (4) Add an rxrpc_disconnect_call tracepoint to record call disconnection, including the reason the call was disconnected. (5) Add an rxrpc_improper_term tracepoint to record implicit termination of a call by a client either by starting a new call on a particular connection channel without first transmitting the final ACK for the previous call. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'include/trace')
-rw-r--r--include/trace/events/rxrpc.h94
1 files changed, 89 insertions, 5 deletions
diff --git a/include/trace/events/rxrpc.h b/include/trace/events/rxrpc.h
index 2395a57462c9..593f586545eb 100644
--- a/include/trace/events/rxrpc.h
+++ b/include/trace/events/rxrpc.h
@@ -595,6 +595,7 @@ TRACE_EVENT(rxrpc_transmit,
__field(enum rxrpc_transmit_trace, why )
__field(rxrpc_seq_t, tx_hard_ack )
__field(rxrpc_seq_t, tx_top )
+ __field(int, tx_winsize )
),
TP_fast_assign(
@@ -602,38 +603,81 @@ TRACE_EVENT(rxrpc_transmit,
__entry->why = why;
__entry->tx_hard_ack = call->tx_hard_ack;
__entry->tx_top = call->tx_top;
+ __entry->tx_winsize = call->tx_winsize;
),
- TP_printk("c=%p %s f=%08x n=%u",
+ TP_printk("c=%p %s f=%08x n=%u/%u",
__entry->call,
__print_symbolic(__entry->why, rxrpc_transmit_traces),
__entry->tx_hard_ack + 1,
- __entry->tx_top - __entry->tx_hard_ack)
+ __entry->tx_top - __entry->tx_hard_ack,
+ __entry->tx_winsize)
+ );
+
+TRACE_EVENT(rxrpc_rx_data,
+ TP_PROTO(struct rxrpc_call *call, rxrpc_seq_t seq,
+ rxrpc_serial_t serial, u8 flags, u8 anno),
+
+ TP_ARGS(call, seq, serial, flags, anno),
+
+ TP_STRUCT__entry(
+ __field(struct rxrpc_call *, call )
+ __field(rxrpc_seq_t, seq )
+ __field(rxrpc_serial_t, serial )
+ __field(u8, flags )
+ __field(u8, anno )
+ ),
+
+ TP_fast_assign(
+ __entry->call = call;
+ __entry->seq = seq;
+ __entry->serial = serial;
+ __entry->flags = flags;
+ __entry->anno = anno;
+ ),
+
+ TP_printk("c=%p DATA %08x q=%08x fl=%02x a=%02x",
+ __entry->call,
+ __entry->serial,
+ __entry->seq,
+ __entry->flags,
+ __entry->anno)
);
TRACE_EVENT(rxrpc_rx_ack,
- TP_PROTO(struct rxrpc_call *call, rxrpc_seq_t first, u8 reason, u8 n_acks),
+ TP_PROTO(struct rxrpc_call *call,
+ rxrpc_serial_t serial, rxrpc_serial_t ack_serial,
+ rxrpc_seq_t first, rxrpc_seq_t prev, u8 reason, u8 n_acks),
- TP_ARGS(call, first, reason, n_acks),
+ TP_ARGS(call, serial, ack_serial, first, prev, reason, n_acks),
TP_STRUCT__entry(
__field(struct rxrpc_call *, call )
+ __field(rxrpc_serial_t, serial )
+ __field(rxrpc_serial_t, ack_serial )
__field(rxrpc_seq_t, first )
+ __field(rxrpc_seq_t, prev )
__field(u8, reason )
__field(u8, n_acks )
),
TP_fast_assign(
__entry->call = call;
+ __entry->serial = serial;
+ __entry->ack_serial = ack_serial;
__entry->first = first;
+ __entry->prev = prev;
__entry->reason = reason;
__entry->n_acks = n_acks;
),
- TP_printk("c=%p %s f=%08x n=%u",
+ TP_printk("c=%p %08x %s r=%08x f=%08x p=%08x n=%u",
__entry->call,
+ __entry->serial,
__print_symbolic(__entry->reason, rxrpc_ack_names),
+ __entry->ack_serial,
__entry->first,
+ __entry->prev,
__entry->n_acks)
);
@@ -1001,6 +1045,46 @@ TRACE_EVENT(rxrpc_congest,
__entry->sum.retrans_timeo ? " rTxTo" : "")
);
+TRACE_EVENT(rxrpc_disconnect_call,
+ TP_PROTO(struct rxrpc_call *call),
+
+ TP_ARGS(call),
+
+ TP_STRUCT__entry(
+ __field(struct rxrpc_call *, call )
+ __field(u32, abort_code )
+ ),
+
+ TP_fast_assign(
+ __entry->call = call;
+ __entry->abort_code = call->abort_code;
+ ),
+
+ TP_printk("c=%p ab=%08x",
+ __entry->call,
+ __entry->abort_code)
+ );
+
+TRACE_EVENT(rxrpc_improper_term,
+ TP_PROTO(struct rxrpc_call *call),
+
+ TP_ARGS(call),
+
+ TP_STRUCT__entry(
+ __field(struct rxrpc_call *, call )
+ __field(u32, abort_code )
+ ),
+
+ TP_fast_assign(
+ __entry->call = call;
+ __entry->abort_code = call->abort_code;
+ ),
+
+ TP_printk("c=%p ab=%08x",
+ __entry->call,
+ __entry->abort_code)
+ );
+
#endif /* _TRACE_RXRPC_H */
/* This part must be outside protection */