[ath] add a placeholder event for debuggin EDMA TX FIFO push events.

Some later code I'll commit pushes lists of frames into the EDMA TX
FIFO, rather than a single frame at a time.  The CABQ code already
pushes frame lists, but it turns out we should actually be doing it
in general or performance tanks. :(

1 files changed, 8 insertions, 0 deletions

diff --git a/sys/dev/ath/if_ath_alq.h b/sys/dev/ath/if_ath_alq.h
index 9f6ceac9f97e..988882d61573 100644
--- a/sys/dev/ath/if_ath_alq.h
+++ b/sys/dev/ath/if_ath_alq.h
@@ -113,6 +113,14 @@ struct if_ath_alq_mib_counters {
 #define	ATH_ALQ_STUCK_BEACON		13
 #define	ATH_ALQ_RESUME_BEACON		14
 
+#define	ATH_ALQ_TX_FIFO_PUSH		15
+struct if_ath_alq_tx_fifo_push {
+	uint32_t	txq;
+	uint32_t	nframes;
+	uint32_t	fifo_depth;
+	uint32_t	frame_cnt;
+};
+
 /*
  * These will always be logged, regardless.
  */