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From: Andrew Melnychenko <andrew@daynix.com>
To: davem@davemloft.net, kuba@kernel.org, mst@redhat.com,
	jasowang@redhat.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org
Cc: yan@daynix.com, yuri.benditovich@daynix.com
Subject: [RFC PATCH 4/5] linux/virtio_net.h: Added Support for GSO_UDP_L4 offload.
Date: Tue, 25 Jan 2022 10:47:01 +0200	[thread overview]
Message-ID: <20220125084702.3636253-5-andrew@daynix.com> (raw)
In-Reply-To: <20220125084702.3636253-1-andrew@daynix.com>

Now, it's possible to convert vnet packets from/to skb.

Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
---
 include/linux/virtio_net.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index a960de68ac69..9311d41d0a81 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -17,6 +17,9 @@ static inline bool virtio_net_hdr_match_proto(__be16 protocol, __u8 gso_type)
 	case VIRTIO_NET_HDR_GSO_UDP:
 		return protocol == cpu_to_be16(ETH_P_IP) ||
 		       protocol == cpu_to_be16(ETH_P_IPV6);
+	case VIRTIO_NET_HDR_GSO_UDP_L4:
+		return protocol == cpu_to_be16(ETH_P_IP) ||
+		       protocol == cpu_to_be16(ETH_P_IPV6);
 	default:
 		return false;
 	}
@@ -31,6 +34,7 @@ static inline int virtio_net_hdr_set_proto(struct sk_buff *skb,
 	switch (hdr->gso_type & ~VIRTIO_NET_HDR_GSO_ECN) {
 	case VIRTIO_NET_HDR_GSO_TCPV4:
 	case VIRTIO_NET_HDR_GSO_UDP:
+	case VIRTIO_NET_HDR_GSO_UDP_L4:
 		skb->protocol = cpu_to_be16(ETH_P_IP);
 		break;
 	case VIRTIO_NET_HDR_GSO_TCPV6:
@@ -69,6 +73,11 @@ static inline int virtio_net_hdr_to_skb(struct sk_buff *skb,
 			ip_proto = IPPROTO_UDP;
 			thlen = sizeof(struct udphdr);
 			break;
+		case VIRTIO_NET_HDR_GSO_UDP_L4:
+			gso_type = SKB_GSO_UDP_L4;
+			ip_proto = IPPROTO_UDP;
+			thlen = sizeof(struct udphdr);
+			break;
 		default:
 			return -EINVAL;
 		}
@@ -182,6 +191,8 @@ static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb,
 			hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV4;
 		else if (sinfo->gso_type & SKB_GSO_TCPV6)
 			hdr->gso_type = VIRTIO_NET_HDR_GSO_TCPV6;
+		else if (sinfo->gso_type & SKB_GSO_UDP_L4)
+			hdr->gso_type = VIRTIO_NET_HDR_GSO_UDP_L4;
 		else
 			return -EINVAL;
 		if (sinfo->gso_type & SKB_GSO_TCP_ECN)
-- 
2.34.1

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  parent reply	other threads:[~2022-01-25  8:47 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-25  8:46 [RFC PATCH 0/5] TUN/VirtioNet USO features support Andrew Melnychenko
2022-01-25  8:46 ` [RFC PATCH 1/5] uapi/linux/if_tun.h: Added new ioctl for tun/tap Andrew Melnychenko
2022-02-09  4:25   ` Jason Wang
2022-02-22 13:28     ` Andrew Melnichenko
2022-02-23  3:53       ` Jason Wang
2022-02-23 13:31         ` Yuri Benditovich
2022-02-24  3:33           ` Jason Wang
2022-01-25  8:46 ` [RFC PATCH 2/5] driver/net/tun: Added features for USO Andrew Melnychenko
2022-01-25 13:42   ` kernel test robot
2022-01-25 13:42     ` kernel test robot
2022-01-25 15:14   ` kernel test robot
2022-02-09  4:39   ` Jason Wang
2022-02-22 13:22     ` Andrew Melnichenko
2022-01-25  8:47 ` [RFC PATCH 3/5] uapi/linux/virtio_net.h: Added USO types Andrew Melnychenko
2022-02-09  4:41   ` Jason Wang
2022-02-22 13:14     ` Andrew Melnichenko
2022-01-25  8:47 ` Andrew Melnychenko [this message]
2022-02-09  4:42   ` [RFC PATCH 4/5] linux/virtio_net.h: Added Support for GSO_UDP_L4 offload Jason Wang
2022-01-25  8:47 ` [RFC PATCH 5/5] drivers/net/virtio_net.c: Added USO support Andrew Melnychenko
2022-02-09  4:44   ` Jason Wang
2022-01-26  7:52 ` [RFC PATCH 0/5] TUN/VirtioNet USO features support Xuan Zhuo
2022-01-26  8:32   ` Yuri Benditovich
2022-02-08 13:09     ` Andrew Melnichenko
2022-02-09  5:41       ` Jason Wang
2022-02-22 13:05         ` Andrew Melnichenko
  -- strict thread matches above, loose matches on Subject: below --
2022-01-26 23:48 [RFC PATCH 2/5] driver/net/tun: Added features for USO kernel test robot
2022-01-27  7:21 ` Dan Carpenter

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