On Fri, 2012-06-08 at 13:31 -0700, Jason Abele wrote:
> From: Javier Cardona <javier@xxxxxxxxxxx>
>
> The mesh metric is computed every time it was requested by the path
> selection framework. At that time only the last_tx_rate was taken into
> account when computing the metric. This last frame may not reflect the
> average data rate that was possible ver that peer link (it could be a
> management frame, a rate control probe, or other outlier).
>
> This patch maintains an average tx rate for each peer link which is used
> in metric calculation.
I don't think this makes a lot of sense, the TX rate is supposed to be
the "best rate" that the rate control algorithm decided on, so using
EWMA to weigh the bitrate seems a bit counter-productive.
> +++ b/net/mac80211/sta_info.h
> @@ -330,6 +330,7 @@ struct sta_info {
> unsigned long tx_retry_failed, tx_retry_count;
> /* moving percentage of failed MSDUs */
> unsigned int fail_avg;
> + struct ewma avg_rate;
and in any case this is missing kernel-doc
johannes
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