On Tue Jul 19, 2022 at 2:35 PM CEST, Baligh Gasmi wrote:
> When estimating the expected throughput, take into account the busy time
> of the current channel.
>
> Signed-off-by: Baligh Gasmi <gasmibal@xxxxxxxxx>
> ---
> net/mac80211/sta_info.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
> index 201aab465234..7e32c06ae771 100644
> --- a/net/mac80211/sta_info.c
> +++ b/net/mac80211/sta_info.c
> @@ -2000,6 +2000,8 @@ void ieee80211_sta_update_tp(struct ieee80211_local *local,
> bool ack, int retry)
> {
> unsigned long diff;
> + struct ieee80211_sub_if_data *sdata;
> + u32 avg_busy;
> struct rate_control_ref *ref = NULL;
>
> if (!skb || !sta || !tx_time_est)
> @@ -2014,6 +2016,7 @@ void ieee80211_sta_update_tp(struct ieee80211_local *local,
> if (local->ops->get_expected_throughput)
> return;
>
> + sdata = sta->sdata;
> tx_time_est += ack ? 4 : 0;
> tx_time_est += retry ? retry * 2 : 2;
>
> @@ -2022,6 +2025,10 @@ void ieee80211_sta_update_tp(struct ieee80211_local *local,
>
> diff = jiffies - sta->deflink.status_stats.last_tp_update;
> if (diff > HZ / 10) {
> + avg_busy = ewma_avg_busy_read(&sdata->avg_busy) >> 1;
> + sta->deflink.tx_stats.tp_tx_time_est +> + (sta->deflink.tx_stats.tp_tx_time_est * avg_busy) / 100;
Once again div_u64() ?
> +
> ewma_avg_est_tp_add(&sta->deflink.status_stats.avg_est_tp,
> sta->deflink.tx_stats.tp_tx_size /
> sta->deflink.tx_stats.tp_tx_time_est);
> --
> 2.37.1
