diff options
| -rw-r--r-- | package/kernel/mac80211/patches/320-mac80211-notify-drivers-on-sta-rate-table-changes.patch | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/320-mac80211-notify-drivers-on-sta-rate-table-changes.patch b/package/kernel/mac80211/patches/320-mac80211-notify-drivers-on-sta-rate-table-changes.patch new file mode 100644 index 0000000000..2ae0729901 --- /dev/null +++ b/package/kernel/mac80211/patches/320-mac80211-notify-drivers-on-sta-rate-table-changes.patch @@ -0,0 +1,92 @@ +From: Johannes Berg <johannes.berg@intel.com> +Date: Tue, 18 Nov 2014 23:26:40 +0100 +Subject: [PATCH] mac80211: notify drivers on sta rate table changes + +This allows drivers with a firmware or chip-based rate lookup table to +use the most recent default rate selection without having to get it from +per-packet data or explicit ieee80211_get_tx_rate calls + +Signed-off-by: Felix Fietkau <nbd@openwrt.org> +--- + +--- a/include/net/mac80211.h ++++ b/include/net/mac80211.h +@@ -2631,6 +2631,9 @@ enum ieee80211_reconfig_type { + * uses hardware rate control (%IEEE80211_HW_HAS_RATE_CONTROL) since + * otherwise the rate control algorithm is notified directly. + * Must be atomic. ++ * @sta_rate_tbl_update: Notifies the driver that the rate table changed. This ++ * is only used if the configured rate control algorithm actually uses ++ * the new rate table API, and is therefore optional. Must be atomic. + * + * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), + * bursting) for a hardware TX queue. +@@ -2972,6 +2975,9 @@ struct ieee80211_ops { + struct ieee80211_vif *vif, + struct ieee80211_sta *sta, + u32 changed); ++ void (*sta_rate_tbl_update)(struct ieee80211_hw *hw, ++ struct ieee80211_vif *vif, ++ struct ieee80211_sta *sta); + int (*conf_tx)(struct ieee80211_hw *hw, + struct ieee80211_vif *vif, u16 ac, + const struct ieee80211_tx_queue_params *params); +--- a/net/mac80211/driver-ops.h ++++ b/net/mac80211/driver-ops.h +@@ -621,6 +621,21 @@ static inline void drv_sta_rc_update(str + trace_drv_return_void(local); + } + ++static inline void drv_sta_rate_tbl_update(struct ieee80211_local *local, ++ struct ieee80211_sub_if_data *sdata, ++ struct ieee80211_sta *sta) ++{ ++ sdata = get_bss_sdata(sdata); ++ if (!check_sdata_in_driver(sdata)) ++ return; ++ ++ trace_drv_sta_rate_tbl_update(local, sdata, sta); ++ if (local->ops->sta_rate_tbl_update) ++ local->ops->sta_rate_tbl_update(&local->hw, &sdata->vif, sta); ++ ++ trace_drv_return_void(local); ++} ++ + static inline int drv_conf_tx(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, u16 ac, + const struct ieee80211_tx_queue_params *params) +--- a/net/mac80211/rate.c ++++ b/net/mac80211/rate.c +@@ -696,6 +696,7 @@ int rate_control_set_rates(struct ieee80 + struct ieee80211_sta *pubsta, + struct ieee80211_sta_rates *rates) + { ++ struct sta_info *sta = container_of(pubsta, struct sta_info, sta); + struct ieee80211_sta_rates *old; + + /* +@@ -709,6 +710,8 @@ int rate_control_set_rates(struct ieee80 + if (old) + kfree_rcu(old, rcu_head); + ++ drv_sta_rate_tbl_update(hw_to_local(hw), sta->sdata, pubsta); ++ + return 0; + } + EXPORT_SYMBOL(rate_control_set_rates); +--- a/net/mac80211/trace.h ++++ b/net/mac80211/trace.h +@@ -826,6 +826,13 @@ DEFINE_EVENT(sta_event, drv_sta_pre_rcu_ + TP_ARGS(local, sdata, sta) + ); + ++DEFINE_EVENT(sta_event, drv_sta_rate_tbl_update, ++ TP_PROTO(struct ieee80211_local *local, ++ struct ieee80211_sub_if_data *sdata, ++ struct ieee80211_sta *sta), ++ TP_ARGS(local, sdata, sta) ++); ++ + TRACE_EVENT(drv_conf_tx, + TP_PROTO(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, |