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Date: Wed, 9 Feb 2022 12:41:08 +0800 From: Jason Wang <jasowang@...hat.com> To: Andrew Melnychenko <andrew@...nix.com>, davem@...emloft.net, kuba@...nel.org, mst@...hat.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, virtualization@...ts.linux-foundation.org Cc: yuri.benditovich@...nix.com, yan@...nix.com Subject: Re: [RFC PATCH 3/5] uapi/linux/virtio_net.h: Added USO types. 在 2022/1/25 下午4:47, Andrew Melnychenko 写道: > Added new GSO type for USO: VIRTIO_NET_HDR_GSO_UDP_L4. > Feature VIRTIO_NET_F_HOST_USO allows to enable NETIF_F_GSO_UDP_L4. > Separated VIRTIO_NET_F_GUEST_USO4 & VIRTIO_NET_F_GUEST_USO6 features > required for Windows guests. > > Signed-off-by: Andrew Melnychenko <andrew@...nix.com> > --- > include/uapi/linux/virtio_net.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/include/uapi/linux/virtio_net.h b/include/uapi/linux/virtio_net.h > index 3f55a4215f11..620addc5767b 100644 > --- a/include/uapi/linux/virtio_net.h > +++ b/include/uapi/linux/virtio_net.h > @@ -56,6 +56,9 @@ > #define VIRTIO_NET_F_MQ 22 /* Device supports Receive Flow > * Steering */ > #define VIRTIO_NET_F_CTRL_MAC_ADDR 23 /* Set MAC address */ > +#define VIRTIO_NET_F_GUEST_USO4 54 /* Guest can handle USOv4 in. */ > +#define VIRTIO_NET_F_GUEST_USO6 55 /* Guest can handle USOv6 in. */ > +#define VIRTIO_NET_F_HOST_USO 56 /* Host can handle USO in. */ I think it's better to be consistent here. Either we split in both guest and host or not. Thanks > > #define VIRTIO_NET_F_HASH_REPORT 57 /* Supports hash report */ > #define VIRTIO_NET_F_RSS 60 /* Supports RSS RX steering */ > @@ -130,6 +133,7 @@ struct virtio_net_hdr_v1 { > #define VIRTIO_NET_HDR_GSO_TCPV4 1 /* GSO frame, IPv4 TCP (TSO) */ > #define VIRTIO_NET_HDR_GSO_UDP 3 /* GSO frame, IPv4 UDP (UFO) */ > #define VIRTIO_NET_HDR_GSO_TCPV6 4 /* GSO frame, IPv6 TCP */ > +#define VIRTIO_NET_HDR_GSO_UDP_L4 5 /* GSO frame, IPv4 & IPv6 UDP (USO) */ > #define VIRTIO_NET_HDR_GSO_ECN 0x80 /* TCP has ECN set */ > __u8 gso_type; > __virtio16 hdr_len; /* Ethernet + IP + tcp/udp hdrs */
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