From 7a6102aa6df0d5d032b4cbc51935d1d4cda17254 Mon Sep 17 00:00:00 2001 From: Toke Høiland-Jørgensen Date: Mon, 11 Sep 2023 15:58:25 +0200 Subject: veth: Update XDP feature set when bringing up device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit There's an early return in veth_set_features() if the device is in a down state, which leads to the XDP feature flags not being updated when enabling GRO while the device is down. Which in turn leads to XDP_REDIRECT not working, because the redirect code now checks the flags. Fix this by updating the feature flags after bringing the device up. Before this patch: NETDEV_XDP_ACT_BASIC: yes NETDEV_XDP_ACT_REDIRECT: yes NETDEV_XDP_ACT_NDO_XMIT: no NETDEV_XDP_ACT_XSK_ZEROCOPY: no NETDEV_XDP_ACT_HW_OFFLOAD: no NETDEV_XDP_ACT_RX_SG: yes NETDEV_XDP_ACT_NDO_XMIT_SG: no After this patch: NETDEV_XDP_ACT_BASIC: yes NETDEV_XDP_ACT_REDIRECT: yes NETDEV_XDP_ACT_NDO_XMIT: yes NETDEV_XDP_ACT_XSK_ZEROCOPY: no NETDEV_XDP_ACT_HW_OFFLOAD: no NETDEV_XDP_ACT_RX_SG: yes NETDEV_XDP_ACT_NDO_XMIT_SG: yes Fixes: fccca038f300 ("veth: take into account device reconfiguration for xdp_features flag") Fixes: 66c0e13ad236 ("drivers: net: turn on XDP features") Signed-off-by: Toke Høiland-Jørgensen Link: https://lore.kernel.org/r/20230911135826.722295-1-toke@redhat.com Signed-off-by: Paolo Abeni --- drivers/net/veth.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/net/veth.c') diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 9c6f4f83f22b..0deefd1573cf 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -1446,6 +1446,8 @@ static int veth_open(struct net_device *dev) netif_carrier_on(peer); } + veth_set_xdp_features(dev); + return 0; } -- cgit