On Thu, 2018-09-06 at 16:57 +0800, Yuan-Chi Pang wrote:
> TX status reporting to ieee80211s is through
> ieee80211s_update_metric.
> There are two problems about ieee80211s_update_metric:
>
> 1. The purpose is to estimate the fail probability
> to a specific link. No need to restrict to data frame.
>
> 2. Current implementation does not work if wireless driver does not
> pass tx_status with skb.
>
> Fix this by removing ieee80211_is_data condition, passing
> ieee80211_tx_status directly to ieee80211s_update_metric, and
> putting it in both __ieee80211_tx_status and ieee80211_tx_status_ext.
>
> Signed-off-by: Yuan-Chi Pang <fu3mo6goo@xxxxxxxxx>
> ---
> net/mac80211/mesh.h | 2 +-
> net/mac80211/mesh_hwmp.c | 8 ++------
> net/mac80211/status.c | 4 +++-
> 3 files changed, 6 insertions(+), 8 deletions(-)
>
> diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
> index ee56f18..7ffe56a 100644
> --- a/net/mac80211/mesh.h
> +++ b/net/mac80211/mesh.h
> @@ -217,7 +217,7 @@ void mesh_rmc_free(struct ieee80211_sub_if_data
> *sdata);
> int mesh_rmc_init(struct ieee80211_sub_if_data *sdata);
> void ieee80211s_init(void);
> void ieee80211s_update_metric(struct ieee80211_local *local,
> - struct sta_info *sta, struct sk_buff
> *skb);
> + struct sta_info *sta, struct
> ieee80211_tx_status *st);
> void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata);
> void ieee80211_mesh_teardown_sdata(struct ieee80211_sub_if_data
> *sdata);
> int ieee80211_start_mesh(struct ieee80211_sub_if_data *sdata);
I received the comment of my previous submission that I should fix
indentation. But if I use the same indentation as before, I got "line
over 80 characters" warning by checkpatch. What should I do?
> diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c
> index daf9db3..4286673 100644
> --- a/net/mac80211/mesh_hwmp.c
> +++ b/net/mac80211/mesh_hwmp.c
> @@ -295,15 +295,11 @@ int mesh_path_error_tx(struct
> ieee80211_sub_if_data *sdata,
> }
>
> void ieee80211s_update_metric(struct ieee80211_local *local,
> - struct sta_info *sta, struct sk_buff *skb)
> + struct sta_info *sta, struct ieee80211_tx_status
> *st)
> {
> - struct ieee80211_tx_info *txinfo = IEEE80211_SKB_CB(skb);
> - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb-
> >data;
> + struct ieee80211_tx_info *txinfo = st->info;
> int failed;
>
> - if (!ieee80211_is_data(hdr->frame_control))
> - return;
> -
> failed = !(txinfo->flags & IEEE80211_TX_STAT_ACK);
>
> /* moving average, scaled to 100.
> diff --git a/net/mac80211/status.c b/net/mac80211/status.c
> index 9a6d720..dfcd419 100644
> --- a/net/mac80211/status.c
> +++ b/net/mac80211/status.c
> @@ -811,7 +811,7 @@ static void __ieee80211_tx_status(struct
> ieee80211_hw *hw,
>
> rate_control_tx_status(local, sband, status);
> if (ieee80211_vif_is_mesh(&sta->sdata->vif))
> - ieee80211s_update_metric(local, sta, skb);
> + ieee80211s_update_metric(local, sta,
> status);
>
> if (!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
> acked)
> ieee80211_frame_acked(sta, skb);
> @@ -972,6 +972,8 @@ void ieee80211_tx_status_ext(struct ieee80211_hw
> *hw,
> }
>
> rate_control_tx_status(local, sband, status);
> + if (ieee80211_vif_is_mesh(&sta->sdata->vif))
> + ieee80211s_update_metric(local, sta,
> status);
> }
>
> if (acked || noack_success) {
