diff options
| author |   Dedy Lansky <dlansky@codeaurora.org> | 2018-07-24 10:44:24 +0300 |
|---|---|---|
| committer |   Kalle Valo <kvalo@codeaurora.org> | 2018-07-31 10:59:50 +0300 |
| commit | a24a3d6abb978d4abc25d541e787981e7ef555c8 (patch) | |
| tree | 78fd5e07de7c7f3308968c09d70935cb2a076e02 /drivers/net/wireless/ath/wil6210/txrx_edma.c | |
| parent | wil6210: drop Rx packets with L2 error indication from HW (diff) | |
| download | linux-a24a3d6abb978d4abc25d541e787981e7ef555c8.tar.xz linux-a24a3d6abb978d4abc25d541e787981e7ef555c8.zip | |
wil6210: add TX latency statistics
Collect statistics of TX latency. The latency is measured from the time
the HW gets aware of new SKB to transmit until the HW indicates tx
complete for this SKB.
The statistics are shown via new "tx_latency" debugfs.
Signed-off-by: Dedy Lansky <dlansky@codeaurora.org>
Signed-off-by: Maya Erez <merez@codeaurora.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/txrx_edma.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/txrx_edma.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/txrx_edma.c b/drivers/net/wireless/ath/wil6210/txrx_edma.c index b5d399f1c1c7..2ea9767b01d1 100644 --- a/drivers/net/wireless/ath/wil6210/txrx_edma.c +++ b/drivers/net/wireless/ath/wil6210/txrx_edma.c @@ -1217,6 +1217,9 @@ int wil_tx_sring_handler(struct wil6210_priv *wil, if (stats) { stats->tx_packets++; stats->tx_bytes += skb->len; + + wil_tx_latency_calc(wil, skb, + &wil->sta[cid]); } } else { ndev->stats.tx_errors++; @@ -1467,6 +1470,11 @@ static int __wil_tx_ring_tso_edma(struct wil6210_priv *wil, */ wmb(); + if (wil->tx_latency) + *(ktime_t *)&skb->cb = ktime_get(); + else + memset(skb->cb, 0, sizeof(ktime_t)); + wil_w(wil, ring->hwtail, ring->swhead); return 0; |