mac80211: set NETIF_F_LLTX when using intermediate tx queues

When using iTXQ, tx sequence number allocation and statistics are run at
dequeue time. Because of that, it is safe to enable NETIF_F_LLTX, which
allows tx handlers to run on multiple CPUs in parallel.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index f0d97eba250bb5853bc2a5186bb59e0988b95937..6e1b031535d5d3a391f9db6d6964f29c7b288935 100644 (file)
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1225,6 +1225,7 @@ static void ieee80211_if_setup(struct net_device *dev)
 static void ieee80211_if_setup_no_queue(struct net_device *dev)
 {
        ieee80211_if_setup(dev);
+       dev->features |= NETIF_F_LLTX;
        dev->priv_flags |= IFF_NO_QUEUE;
 }