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| author | David Howells <dhowells@redhat.com> | 2017-01-05 10:38:34 +0000 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2017-01-05 11:39:12 +0000 |
| commit | b1d9f7fde0bb6c143a9a5b9246ea191e28f2c364 (patch) | |
| tree | dacc3237dc81098e076b60aa6fe8ba80c22e746c /net | |
| parent | b54a134a7de461f804cf0e28331d0a43ee82fb13 (diff) | |
| download | linux-b1d9f7fde0bb6c143a9a5b9246ea191e28f2c364.tar.gz linux-b1d9f7fde0bb6c143a9a5b9246ea191e28f2c364.tar.bz2 linux-b1d9f7fde0bb6c143a9a5b9246ea191e28f2c364.zip | |
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 'net')
| -rw-r--r-- | net/rxrpc/conn_object.c | 1 | ||||
| -rw-r--r-- | net/rxrpc/input.c | 6 |
2 files changed, 6 insertions, 1 deletions
diff --git a/net/rxrpc/conn_object.c b/net/rxrpc/conn_object.c index e1e83af47866..b0ecb770fdce 100644 --- a/net/rxrpc/conn_object.c +++ b/net/rxrpc/conn_object.c @@ -173,6 +173,7 @@ void __rxrpc_disconnect_call(struct rxrpc_connection *conn, /* Save the result of the call so that we can repeat it if necessary * through the channel, whilst disposing of the actual call record. */ + trace_rxrpc_disconnect_call(call); chan->last_service_id = call->service_id; if (call->abort_code) { chan->last_abort = call->abort_code; diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c index 7c2abd85def9..78ec33477adf 100644 --- a/net/rxrpc/input.c +++ b/net/rxrpc/input.c @@ -481,6 +481,7 @@ next_subpacket: return rxrpc_proto_abort("LSA", call, seq); } + trace_rxrpc_rx_data(call, seq, serial, flags, annotation); if (before_eq(seq, hard_ack)) { ack = RXRPC_ACK_DUPLICATE; ack_serial = serial; @@ -765,7 +766,9 @@ static void rxrpc_input_ack(struct rxrpc_call *call, struct sk_buff *skb, summary.ack_reason = (buf.ack.reason < RXRPC_ACK__INVALID ? buf.ack.reason : RXRPC_ACK__INVALID); - trace_rxrpc_rx_ack(call, first_soft_ack, summary.ack_reason, nr_acks); + trace_rxrpc_rx_ack(call, sp->hdr.serial, acked_serial, + first_soft_ack, ntohl(buf.ack.previousPacket), + summary.ack_reason, nr_acks); if (buf.ack.reason == RXRPC_ACK_PING_RESPONSE) rxrpc_input_ping_response(call, skb->tstamp, acked_serial, @@ -951,6 +954,7 @@ static void rxrpc_input_implicit_end_call(struct rxrpc_connection *conn, break; } + trace_rxrpc_improper_term(call); __rxrpc_disconnect_call(conn, call); rxrpc_notify_socket(call); } |