From 9ce7cdb5d1d25f47b5a9839af6d10406ec4190c4 Mon Sep 17 00:00:00 2001 From: David Bauer Date: Sat, 13 Jun 2020 19:19:17 +0200 Subject: [PATCH] mt76: mt76x0: disable GTK offloading When the GTK is offloaded, MT7610 won't transmit any multicast frames. This is most likely due to a bug in the offloading datapath. MT7612 is not affected. Disable GTK offloading for now. It can be re-enabled once the bug in the offloading path is fixed. Signed-off-by: David Bauer --- ...1-mt76-mt76x0-disable-gtk-offloading.patch | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 package/kernel/mt76/patches/001-mt76-mt76x0-disable-gtk-offloading.patch diff --git a/package/kernel/mt76/patches/001-mt76-mt76x0-disable-gtk-offloading.patch b/package/kernel/mt76/patches/001-mt76-mt76x0-disable-gtk-offloading.patch new file mode 100644 index 0000000000..e7e19ac957 --- /dev/null +++ b/package/kernel/mt76/patches/001-mt76-mt76x0-disable-gtk-offloading.patch @@ -0,0 +1,30 @@ +From ae01717951013fbc8bb0315d902d5b9f5873631a Mon Sep 17 00:00:00 2001 +From: David Bauer +Date: Fri, 12 Jun 2020 01:09:57 +0200 +Subject: [PATCH] mt76: mt76x0: disable GTK offloading + +When the GTK is offloaded, MT7610 won't transmit any multicast frames. +This is most likely due to a bug in the offloading datapath. MT7612 is +not affected. + +Disable GTK offloading for now. It can be re-enabled once the bug in the +offloading path is fixed. + +Signed-off-by: David Bauer +--- + drivers/net/wireless/mediatek/mt76/mt76x02_util.c | 4 ++++ + 1 file changed, 4 insertions(+) + +--- a/mt76x02_util.c ++++ b/mt76x02_util.c +@@ -432,6 +432,10 @@ int mt76x02_set_key(struct ieee80211_hw + !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) + return -EOPNOTSUPP; + ++ /* MT76x0 GTK offloading is currently broken */ ++ if (is_mt76x0(dev) && !(key->flags & IEEE80211_KEY_FLAG_PAIRWISE)) ++ return -EOPNOTSUPP; ++ + /* + * In USB AP mode, broadcast/multicast frames are setup in beacon + * data registers and sent via HW beacons engine, they require to