diff options
| author | Jérôme Pouiller <jerome.pouiller@silabs.com> | 2020-07-01 17:06:58 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-07-03 10:33:07 +0200 |
| commit | b64d1054bccbbcb435901e20f564292214373f87 (patch) | |
| tree | 509cb2f01bbfa0dcc22905265764cec9c1f1caf9 /drivers/staging | |
| parent | 70a37a09db9c8187e94108d875513c18000bb8d9 (diff) | |
staging: wfx: add tracepoint "queues_stats"
It is useful to check which queue the driver choose to send to the
hardware.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200701150707.222985-5-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging')
| -rw-r--r-- | drivers/staging/wfx/queue.c | 3 | ||||
| -rw-r--r-- | drivers/staging/wfx/traces.h | 51 |
2 files changed, 54 insertions, 0 deletions
diff --git a/drivers/staging/wfx/queue.c b/drivers/staging/wfx/queue.c index 678f62263909..6e3159165143 100644 --- a/drivers/staging/wfx/queue.c +++ b/drivers/staging/wfx/queue.c @@ -12,6 +12,7 @@ #include "wfx.h" #include "sta.h" #include "data_tx.h" +#include "traces.h" void wfx_tx_lock(struct wfx_dev *wdev) { @@ -256,6 +257,7 @@ static struct sk_buff *wfx_tx_queues_get_skb(struct wfx_dev *wdev) WARN_ON(queues[i] != &wvif->tx_queue[skb_get_queue_mapping(skb)]); atomic_inc(&queues[i]->pending_frames); + trace_queues_stats(wdev, queues[i]); return skb; } // No more multicast to sent @@ -267,6 +269,7 @@ static struct sk_buff *wfx_tx_queues_get_skb(struct wfx_dev *wdev) skb = skb_dequeue(&queues[i]->normal); if (skb) { atomic_inc(&queues[i]->pending_frames); + trace_queues_stats(wdev, queues[i]); return skb; } } diff --git a/drivers/staging/wfx/traces.h b/drivers/staging/wfx/traces.h index 0b6fbd518638..d376db2f1891 100644 --- a/drivers/staging/wfx/traces.h +++ b/drivers/staging/wfx/traces.h @@ -439,6 +439,57 @@ TRACE_EVENT(tx_stats, ); #define _trace_tx_stats(tx_cnf, skb, delay) trace_tx_stats(tx_cnf, skb, delay) +TRACE_EVENT(queues_stats, + TP_PROTO(struct wfx_dev *wdev, const struct wfx_queue *elected_queue), + TP_ARGS(wdev, elected_queue), + TP_STRUCT__entry( + __field(int, vif_id) + __field(int, queue_id) + __array(int, hw, IEEE80211_NUM_ACS * 2) + __array(int, drv, IEEE80211_NUM_ACS * 2) + __array(int, cab, IEEE80211_NUM_ACS * 2) + ), + TP_fast_assign( + const struct wfx_queue *queue; + struct wfx_vif *wvif; + int i, j; + + for (j = 0; j < IEEE80211_NUM_ACS * 2; j++) { + __entry->hw[j] = -1; + __entry->drv[j] = -1; + __entry->cab[j] = -1; + } + __entry->vif_id = -1; + __entry->queue_id = -1; + wvif = NULL; + while ((wvif = wvif_iterate(wdev, wvif)) != NULL) { + for (i = 0; i < IEEE80211_NUM_ACS; i++) { + j = wvif->id * IEEE80211_NUM_ACS + i; + WARN_ON(j >= IEEE80211_NUM_ACS * 2); + queue = &wvif->tx_queue[i]; + __entry->hw[j] = atomic_read(&queue->pending_frames); + __entry->drv[j] = skb_queue_len(&queue->normal); + __entry->cab[j] = skb_queue_len(&queue->cab); + if (queue == elected_queue) { + __entry->vif_id = wvif->id; + __entry->queue_id = i; + } + } + } + ), + TP_printk("got skb from %d/%d, pend. hw/norm/cab: [ %d/%d/%d %d/%d/%d %d/%d/%d %d/%d/%d ] [ %d/%d/%d %d/%d/%d %d/%d/%d %d/%d/%d ]", + __entry->vif_id, __entry->queue_id, + __entry->hw[0], __entry->drv[0], __entry->cab[0], + __entry->hw[1], __entry->drv[1], __entry->cab[1], + __entry->hw[2], __entry->drv[2], __entry->cab[2], + __entry->hw[3], __entry->drv[3], __entry->cab[3], + __entry->hw[4], __entry->drv[4], __entry->cab[4], + __entry->hw[5], __entry->drv[5], __entry->cab[5], + __entry->hw[6], __entry->drv[6], __entry->cab[6], + __entry->hw[7], __entry->drv[7], __entry->cab[7] + ) +); + #endif /* This part must be outside protection */ |