[PATCH 3/4] ath10k: add htt rx tracepoints

[Rajkumar Manoharan]

From: Michal Kazior <michal.kazior at tieto.com>

Although frame contents were printed via dbg_dump
already it was not possible to easily filter them
out for processing.

Signed-off-by: Michal Kazior <michal.kazior at tieto.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c |  3 +++
 drivers/net/wireless/ath/ath10k/trace.h  | 27 +++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 7add88e..4dbb2dd 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -291,6 +291,9 @@ static inline struct sk_buff *ath10k_htt_rx_netbuf_pop(struct ath10k_htt *htt)
 	htt->rx_ring.sw_rd_idx.msdu_payld = idx;
 	htt->rx_ring.fill_cnt--;
 
+	trace_ath10k_htt_rx_pop_msdu(ar, msdu->data, msdu->len +
+				     skb_tailroom(msdu));
+
 	return msdu;
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/trace.h b/drivers/net/wireless/ath/ath10k/trace.h
index c074de0..6d39055 100644
--- a/drivers/net/wireless/ath/ath10k/trace.h
+++ b/drivers/net/wireless/ath/ath10k/trace.h
@@ -424,6 +424,33 @@ TRACE_EVENT(ath10k_wmi_bcn_tx,
 		__entry->len
 	)
 );
+
+TRACE_EVENT(ath10k_htt_rx_pop_msdu,
+	    TP_PROTO(struct ath10k *ar, void *data, size_t len),
+
+	TP_ARGS(ar, data, len),
+
+	TP_STRUCT__entry(
+		__string(device, dev_name(ar->dev))
+		__string(driver, dev_driver_string(ar->dev))
+		__field(size_t, len)
+		__dynamic_array(u8, data, len)
+	),
+
+	TP_fast_assign(
+		__assign_str(device, dev_name(ar->dev));
+		__assign_str(driver, dev_driver_string(ar->dev));
+		__entry->len = len;
+		memcpy(__get_dynamic_array(data), data, len);
+	),
+
+	TP_printk(
+		"%s %s len %zu\n",
+		__get_str(driver),
+		__get_str(device),
+		__entry->len
+	)
+);
 #endif /* _TRACE_H_ || TRACE_HEADER_MULTI_READ*/
 
 /* we don't want to use include/trace/events */
-- 
2.1.2