Re: [RFC net-next] udp: add a GSO type for UDPv6
From: Willem de Bruijn <willemdebruijn.kernel@gmail.com>
Date: 2020-09-02 14:34:17
Also in:
lkml
On Wed, Sep 2, 2020 at 2:18 PM Huazhong Tan [off-list ref] wrote:
In some cases, for UDP GSO, UDPv4 and UDPv6 need to be handled separately, for example, checksum offload, so add new GSO type SKB_GSO_UDPV6_L4 for UDPv6, and the old SKB_GSO_UDP_L4 stands for UDPv4.
This is in preparation for hardware you have that actually cares about this distinction, I guess?
quoted hunk ↗ jump to hunk
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h index 2cc3cf8..b7c1a76 100644 --- a/include/linux/netdev_features.h +++ b/include/linux/netdev_features.h@@ -54,6 +54,7 @@ enum { NETIF_F_GSO_UDP_BIT, /* ... UFO, deprecated except tuntap */ NETIF_F_GSO_UDP_L4_BIT, /* ... UDP payload GSO (not UFO) */ NETIF_F_GSO_FRAGLIST_BIT, /* ... Fraglist GSO */ + NETIF_F_GSO_UDPV6_L4_BIT, /* ... UDPv6 payload GSO (not UFO) */ /**/NETIF_F_GSO_LAST = /* last bit, see GSO_MASK */ NETIF_F_GSO_FRAGLIST_BIT,
Need to update NETIF_F_GSO_LAST then, too.