AuxXxilium/linux_dsm_epyc7002
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staging: wfx: add tracepoint "queues_stats"

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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>
This commit is contained in:
Jérôme Pouiller 2020-07-01 17:06:58 +02:00 committed by Greg Kroah-Hartman
parent 70a37a09db
commit b64d1054bc
2 changed files with 54 additions and 0 deletions
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3
drivers/staging/wfx/queue.c
View File

@ -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;
}
}

51
drivers/staging/wfx/traces.h
View File

@ -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 */