Anilkumar Kolli <ako...@codeaurora.org> writes:
> Current mac80211 has provision to update tx status through
> ieee80211_tx_status() and ieee80211_tx_status_ext(). But
> drivers like ath10k updates the tx status from the skb except
> txrate, txrate will be updated from a different path, peer stats.
>
> Using ieee80211_tx_status_ext() in two different paths
> - (one for the stats, one for the tx rate) will duplicate the stats.
>
> To avoid this stats duplication, ieee80211_tx_rate_update() is implemented.
>
> Signed-off-by: Anilkumar Kolli <ako...@codeaurora.org>
> ---
> V3:
> - Added new API in mac80211 to update tx rate(Johannes)
>
> include/net/mac80211.h | 14 ++++++++++++++
> net/mac80211/status.c | 24 ++++++++++++++++++++++++
> 2 files changed, 38 insertions(+)
>
> diff --git a/include/net/mac80211.h b/include/net/mac80211.h
> index 8c26d2d36cbe..042186a21770 100644
> --- a/include/net/mac80211.h
> +++ b/include/net/mac80211.h
> @@ -4331,6 +4331,20 @@ void ieee80211_sta_set_expected_throughput(struct
> ieee80211_sta *pubsta,
> u32 thr);
>
> /**
> + * ieee80211_tx_rate_update - transmit rate update callback
> + *
> + * This function can be used in drivers that does not have provision
> + * in updating the tx rate in data path.
> + *
> + * @hw: the hardware the frame was transmitted by
> + * @status: tx status information
> + * @pubsta: the station to update the tx rate for.
> + */
> +void ieee80211_tx_rate_update(struct ieee80211_hw *hw,
> + struct ieee80211_sta *pubsta,
> + struct ieee80211_tx_info *info);
> +
> +/**
> * ieee80211_tx_status - transmit status callback
> *
> * Call this function for all transmitted frames after they have been
> diff --git a/net/mac80211/status.c b/net/mac80211/status.c
> index 9a6d7208bf4f..232297ddaa02 100644
> --- a/net/mac80211/status.c
> +++ b/net/mac80211/status.c
> @@ -988,6 +988,30 @@ void ieee80211_tx_status_ext(struct ieee80211_hw *hw,
> }
> EXPORT_SYMBOL(ieee80211_tx_status_ext);
>
> +void ieee80211_tx_rate_update(struct ieee80211_hw *hw,
> + struct ieee80211_sta *pubsta,
> + struct ieee80211_tx_info *info)
> +{
> + struct ieee80211_local *local = hw_to_local(hw);
> + struct ieee80211_supported_band *sband;
> + struct sta_info *sta;
> + struct ieee80211_tx_status status;
> +
> + sband = hw->wiphy->bands[info->band];
> +
> + if (pubsta) {
The function does nothing if pubsta is NULL; wouldn't it make more sense
to just mandate that it isn't NULL rather than have this check?
-Toke
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