ath10k: add tracing for frame transmission

Add tracing support to forward management and data frames to
user space for packet inspection.

Signed-off-by: Rajkumar Manoharan <rmanohar@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 27b3051..fbb3175 100644 (file)
--- 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/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index fdfb171..b0df470 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -564,6 +564,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
                   (u32)skb_cb->paddr, vdev_id, tid);
        ath10k_dbg_dump(ar, ATH10K_DBG_HTT_DUMP, NULL, "htt tx msdu: ",
                        msdu->data, msdu->len);
+       trace_ath10k_htt_tx_msdu(ar, msdu->data, msdu->len);
 
        sg_items[0].transfer_id = 0;
        sg_items[0].transfer_context = NULL;

diff --git a/drivers/net/wireless/ath/ath10k/trace.h b/drivers/net/wireless/ath/ath10k/trace.h
index 33b9bf4..9d34e7f 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/trace.h
+++ b/drivers/net/wireless/ath/ath10k/trace.h
@@ -370,6 +370,53 @@ TRACE_EVENT(ath10k_txrx_tx_unref,
                __entry->msdu_id
         )
 );
+
+DECLARE_EVENT_CLASS(ath10k_data_event,
+                   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
+       )
+);
+
+DEFINE_EVENT(ath10k_data_event, ath10k_htt_tx_msdu,
+            TP_PROTO(struct ath10k *ar, void *data, size_t len),
+            TP_ARGS(ar, data, len)
+);
+
+DEFINE_EVENT(ath10k_data_event, ath10k_htt_rx_pop_msdu,
+            TP_PROTO(struct ath10k *ar, void *data, size_t len),
+            TP_ARGS(ar, data, len)
+);
+
+DEFINE_EVENT(ath10k_data_event, ath10k_wmi_mgmt_tx,
+            TP_PROTO(struct ath10k *ar, void *data, size_t len),
+            TP_ARGS(ar, data, len)
+);
+
+DEFINE_EVENT(ath10k_data_event, ath10k_wmi_bcn_tx,
+            TP_PROTO(struct ath10k *ar, void *data, size_t len),
+            TP_ARGS(ar, data, len)
+);
 #endif /* _TRACE_H_ || TRACE_HEADER_MULTI_READ*/
 
 /* we don't want to use include/trace/events */

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 7ca9dcb..829fccf 100644 (file)
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -834,6 +834,7 @@ int ath10k_wmi_mgmt_tx(struct ath10k *ar, struct sk_buff *skb)
        ath10k_dbg(ar, ATH10K_DBG_WMI, "wmi mgmt tx skb %p len %d ftype %02x stype %02x\n",
                   wmi_skb, wmi_skb->len, fc & IEEE80211_FCTL_FTYPE,
                   fc & IEEE80211_FCTL_STYPE);
+       trace_ath10k_wmi_mgmt_tx(ar, skb->data, skb->len);
 
        /* Send the management frame buffer to the target */
        ret = ath10k_wmi_cmd_send(ar, wmi_skb, ar->wmi.cmd->mgmt_tx_cmdid);
@@ -1892,6 +1893,7 @@ static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
                arvif->beacon = bcn;
                arvif->beacon_sent = false;
 
+               trace_ath10k_wmi_bcn_tx(ar, bcn->data, bcn->len);
                ath10k_wmi_tx_beacon_nowait(arvif);
 skip:
                spin_unlock_bh(&ar->data_lock);