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>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 7b889e3a2647..cff3a26a9dae 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2695,6 +2695,9 @@ 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.
@@ -3056,6 +3059,9 @@ 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);