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authorDavid Howells <dhowells@redhat.com>2016-09-23 13:50:40 +0100
committerDavid Howells <dhowells@redhat.com>2016-09-23 15:49:19 +0100
commit9c7ad434441da6b5d4ac878cac368fbdaec99b56 (patch)
treea86f83d437f8772c0865df213f27265bc826ed60 /net/rxrpc/ar-internal.h
parent89b475abdb107a74f57497b65becaf837a0e5b6b (diff)
rxrpc: Add tracepoint for ACK proposal
Add a tracepoint to log proposed ACKs, including whether the proposal is used to update a pending ACK or is discarded in favour of an easlier, higher priority ACK. Whilst we're at it, get rid of the rxrpc_acks() function and access the name array directly. We do, however, need to validate the ACK reason number given to trace_rxrpc_rx_ack() to make sure we don't overrun the array. Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'net/rxrpc/ar-internal.h')
-rw-r--r--net/rxrpc/ar-internal.h25
1 files changed, 23 insertions, 2 deletions
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index e564eca75985..042dbcc52654 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -689,8 +689,28 @@ enum rxrpc_timer_trace {
extern const char rxrpc_timer_traces[rxrpc_timer__nr_trace][8];
+enum rxrpc_propose_ack_trace {
+ rxrpc_propose_ack_input_data,
+ rxrpc_propose_ack_ping_for_params,
+ rxrpc_propose_ack_respond_to_ack,
+ rxrpc_propose_ack_respond_to_ping,
+ rxrpc_propose_ack_retry_tx,
+ rxrpc_propose_ack_terminal_ack,
+ rxrpc_propose_ack__nr_trace
+};
+
+enum rxrpc_propose_ack_outcome {
+ rxrpc_propose_ack_use,
+ rxrpc_propose_ack_update,
+ rxrpc_propose_ack_subsume,
+ rxrpc_propose_ack__nr_outcomes
+};
+
+extern const char rxrpc_propose_ack_traces[rxrpc_propose_ack__nr_trace][8];
+extern const char *const rxrpc_propose_ack_outcomes[rxrpc_propose_ack__nr_outcomes];
+
extern const char *const rxrpc_pkts[];
-extern const char *rxrpc_acks(u8 reason);
+extern const char const rxrpc_ack_names[RXRPC_ACK__INVALID + 1][4];
#include <trace/events/rxrpc.h>
@@ -719,7 +739,8 @@ int rxrpc_reject_call(struct rxrpc_sock *);
* call_event.c
*/
void rxrpc_set_timer(struct rxrpc_call *, enum rxrpc_timer_trace);
-void rxrpc_propose_ACK(struct rxrpc_call *, u8, u16, u32, bool, bool);
+void rxrpc_propose_ACK(struct rxrpc_call *, u8, u16, u32, bool, bool,
+ enum rxrpc_propose_ack_trace);
void rxrpc_process_call(struct work_struct *);
/*