From ae664d9d8559b123766b47af4dfbfa877a80156e Mon Sep 17 00:00:00 2001 From: Fei Qin Date: Sun, 1 May 2022 08:11:50 +0900 Subject: [PATCH] nfp: support VxLAN inner TSO with GSO_PARTIAL offload VxLAN belongs to UDP-based encapsulation protocol. Inner TSO for VxLAN packet with udpcsum requires offloading of outer header csum. The device doesn't support outer header csum offload. However, inner TSO for VxLAN with udpcsum can still work with GSO_PARTIAL offload, which means outer udp csum computed by stack and inner tcp segmentation finished by hardware. Thus, the patch enable features "NETIF_F_GSO_UDP_TUNNEL_CSUM" and "NETIF_F_GSO_PARTIAL" and set gso_partial_features. Signed-off-by: Fei Qin Signed-off-by: Yinjun Zhang Signed-off-by: Louis Peens Signed-off-by: Simon Horman Link: https://lore.kernel.org/r/20220430231150.175270-1-simon.horman@corigine.com Signed-off-by: Paolo Abeni --- drivers/net/ethernet/netronome/nfp/nfp_net_common.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c index b412670d89b24..5528d12d1f483 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c @@ -2259,8 +2259,12 @@ static void nfp_net_netdev_init(struct nfp_net *nn) if (nn->cap & NFP_NET_CFG_CTRL_RSS_ANY) netdev->hw_features |= NETIF_F_RXHASH; if (nn->cap & NFP_NET_CFG_CTRL_VXLAN) { - if (nn->cap & NFP_NET_CFG_CTRL_LSO) - netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL; + if (nn->cap & NFP_NET_CFG_CTRL_LSO) { + netdev->hw_features |= NETIF_F_GSO_UDP_TUNNEL | + NETIF_F_GSO_UDP_TUNNEL_CSUM | + NETIF_F_GSO_PARTIAL; + netdev->gso_partial_features = NETIF_F_GSO_UDP_TUNNEL_CSUM; + } netdev->udp_tunnel_nic_info = &nfp_udp_tunnels; nn->dp.ctrl |= NFP_NET_CFG_CTRL_VXLAN; } -- 2.30.2