From: Felix Fietkau <nbd@nbd.name>
Date: Sat, 16 Mar 2019 17:06:34 +0000 (+0100)
Subject: mac80211: set NETIF_F_LLTX when using intermediate tx queues
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8dbb000ee73be2c05e34756739ce308885312a29;p=linux.git

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 f0d97eba250bb..6e1b031535d5d 100644
--- 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;
 }