mac80211: add offset_tsf driver op and use it for mesh

[cascardo/linux.git] / include / net / mac80211.h

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index fc589ba..c9f3953 100644 (file)
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3169,6 +3169,12 @@ enum ieee80211_reconfig_type {
  *     required function.
  *     The callback can sleep.
  *
+ * @offset_tsf: Offset the TSF timer by the specified value in the
+ *     firmware/hardware.  Preferred to set_tsf as it avoids delay between
+ *     calling set_tsf() and hardware getting programmed, which will show up
+ *     as TSF delay. Is not a required function.
+ *     The callback can sleep.
+ *
  * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize
  *     with other STAs in the IBSS. This is only used in IBSS mode. This
  *     function is optional if the firmware/hardware takes full care of
@@ -3549,6 +3555,8 @@ struct ieee80211_ops {
        u64 (*get_tsf)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
        void (*set_tsf)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
                        u64 tsf);
+       void (*offset_tsf)(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+                          s64 offset);
        void (*reset_tsf)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
        int (*tx_last_beacon)(struct ieee80211_hw *hw);
        int (*ampdu_action)(struct ieee80211_hw *hw,