Commit 488b366a authored by Alexander Bondar's avatar Alexander Bondar Committed by Johannes Berg
Browse files

mac80211: add driver callback for per-interface multicast filter

Some devices have multicast filter capability for each individual
virtual interface rather than just a global one. Add an interface
specific driver callback allowing such drivers to configure this.
Signed-off-by: default avatarAlexander Bondar <>
Signed-off-by: default avatarJohannes Berg <>
parent 511044ea
......@@ -2259,6 +2259,9 @@ enum ieee80211_roc_type {
* See the section "Frame filtering" for more information.
* This callback must be implemented and can sleep.
* @set_multicast_list: Configure the device's interface specific RX multicast
* filter. This callback is optional. This callback must be atomic.
* @set_tim: Set TIM bit. mac80211 calls this function when a TIM bit
* must be set or cleared for a given STA. Must be atomic.
......@@ -2605,6 +2608,10 @@ struct ieee80211_ops {
unsigned int changed_flags,
unsigned int *total_flags,
u64 multicast);
void (*set_multicast_list)(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, bool allmulti,
struct netdev_hw_addr_list *mc_list);
int (*set_tim)(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
bool set);
int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd,
......@@ -241,6 +241,22 @@ static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
return ret;
static inline void drv_set_multicast_list(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
struct netdev_hw_addr_list *mc_list)
bool allmulti = sdata->flags & IEEE80211_SDATA_ALLMULTI;
trace_drv_set_multicast_list(local, sdata, mc_list->count);
if (local->ops->set_multicast_list)
local->ops->set_multicast_list(&local->hw, &sdata->vif,
allmulti, mc_list);
static inline void drv_configure_filter(struct ieee80211_local *local,
unsigned int changed_flags,
unsigned int *total_flags,
......@@ -919,6 +919,17 @@ static void ieee80211_set_multicast_list(struct net_device *dev)
sdata->flags ^= IEEE80211_SDATA_PROMISC;
* TODO: If somebody needs this on AP interfaces,
* it can be enabled easily but multicast
* addresses from VLANs need to be synced.
if (sdata->vif.type != NL80211_IFTYPE_MONITOR &&
sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
sdata->vif.type != NL80211_IFTYPE_AP)
drv_set_multicast_list(local, sdata, &dev->mc);
__hw_addr_sync(&local->mc_list, &dev->mc, dev->addr_len);
......@@ -431,6 +431,30 @@ TRACE_EVENT(drv_prepare_multicast,
TP_PROTO(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata, int mc_count),
TP_ARGS(local, sdata, mc_count),
__field(bool, allmulti)
__field(int, mc_count)
__entry->allmulti = sdata->flags & IEEE80211_SDATA_ALLMULTI;
__entry->mc_count = mc_count;
LOCAL_PR_FMT " configure mc filter, count=%d, allmulti=%d",
LOCAL_PR_ARG, __entry->mc_count, __entry->allmulti
TP_PROTO(struct ieee80211_local *local,
unsigned int changed_flags,
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