From: Alexander Bondar <alexander.bondar@xxxxxxxxx>
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: Alexander Bondar <alexander.bondar@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
include/net/mac80211.h | 7 +++++++
net/mac80211/driver-ops.h | 16 ++++++++++++++++
net/mac80211/iface.c | 3 +++
net/mac80211/trace.h | 24 ++++++++++++++++++++++++
4 files changed, 50 insertions(+)
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index f940296..d5bc60c 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2261,6 +2261,9 @@ 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.
*
@@ -2610,6 +2613,10 @@ 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,
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index 33f99b9..a8b8cf1 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -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);
+
+ check_sdata_in_driver(sdata);
+
+ if (local->ops->set_multicast_list)
+ local->ops->set_multicast_list(&local->hw, &sdata->vif,
+ allmulti, mc_list);
+ trace_drv_return_void(local);
+}
+
static inline void drv_configure_filter(struct ieee80211_local *local,
unsigned int changed_flags,
unsigned int *total_flags,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index b22ee2f..3afa831 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -919,6 +919,9 @@ static void ieee80211_set_multicast_list(struct net_device *dev)
atomic_dec(&local->iff_promiscs);
sdata->flags ^= IEEE80211_SDATA_PROMISC;
}
+
+ drv_set_multicast_list(local, sdata, &dev->mc);
+
spin_lock_bh(&local->filter_lock);
__hw_addr_sync(&local->mc_list, &dev->mc, dev->addr_len);
spin_unlock_bh(&local->filter_lock);
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index f18f32b..c589979 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -431,6 +431,30 @@ TRACE_EVENT(drv_prepare_multicast,
)
);
+TRACE_EVENT(drv_set_multicast_list,
+ TP_PROTO(struct ieee80211_local *local,
+ struct ieee80211_sub_if_data *sdata, int mc_count),
+
+ TP_ARGS(local, sdata, mc_count),
+
+ TP_STRUCT__entry(
+ LOCAL_ENTRY
+ __field(bool, allmulti)
+ __field(int, mc_count)
+ ),
+
+ TP_fast_assign(
+ LOCAL_ASSIGN;
+ __entry->allmulti = sdata->flags & IEEE80211_SDATA_ALLMULTI;
+ __entry->mc_count = mc_count;
+ ),
+
+ TP_printk(
+ LOCAL_PR_FMT " configure mc filter, count=%d, allmulti=%d",
+ LOCAL_PR_ARG, __entry->mc_count, __entry->allmulti
+ )
+);
+
TRACE_EVENT(drv_configure_filter,
TP_PROTO(struct ieee80211_local *local,
unsigned int changed_flags,
--
1.8.0
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