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From: Andrew Melnychenko <andrew@daynix.com>
To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
	pabeni@redhat.com, mst@redhat.com, jasowang@redhat.com,
	yoshfuji@linux-ipv6.org, dsahern@kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org
Cc: yan@daynix.com, yuri.benditovich@daynix.com
Subject: [PATCH v5 5/6] linux/virtio_net.h: Support USO offload in vnet header.
Date: Wed,  7 Dec 2022 13:35:57 +0200	[thread overview]
Message-ID: <20221207113558.19003-6-andrew@daynix.com> (raw)
In-Reply-To: <20221207113558.19003-1-andrew@daynix.com>

Now, it's possible to convert USO vnet packets from/to skb.
Added support for GSO_UDP_L4 offload.

Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
---
 include/linux/virtio_net.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index a960de68ac69..bdf8de2cdd93 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -15,6 +15,7 @@ static inline bool virtio_net_hdr_match_proto(__be16 protocol, __u8 gso_type)
 	case VIRTIO_NET_HDR_GSO_TCPV6:
 		return protocol == cpu_to_be16(ETH_P_IPV6);
 	case VIRTIO_NET_HDR_GSO_UDP:
+	case VIRTIO_NET_HDR_GSO_UDP_L4:
 		return protocol == cpu_to_be16(ETH_P_IP) ||
 		       protocol == cpu_to_be16(ETH_P_IPV6);
 	default:
@@ -31,6 +32,7 @@ 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 +71,11 @@ 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 +189,8 @@ 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)
-- 
2.38.1


WARNING: multiple messages have this Message-ID (diff)
From: Andrew Melnychenko <andrew@daynix.com>
To: davem@davemloft.net, edumazet@google.com, kuba@kernel.org,
	pabeni@redhat.com, mst@redhat.com, jasowang@redhat.com,
	yoshfuji@linux-ipv6.org, dsahern@kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org
Cc: yan@daynix.com, yuri.benditovich@daynix.com
Subject: [PATCH v5 5/6] linux/virtio_net.h: Support USO offload in vnet header.
Date: Wed,  7 Dec 2022 13:35:57 +0200	[thread overview]
Message-ID: <20221207113558.19003-6-andrew@daynix.com> (raw)
In-Reply-To: <20221207113558.19003-1-andrew@daynix.com>

Now, it's possible to convert USO vnet packets from/to skb.
Added support for GSO_UDP_L4 offload.

Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
---
 include/linux/virtio_net.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index a960de68ac69..bdf8de2cdd93 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h
@@ -15,6 +15,7 @@ static inline bool virtio_net_hdr_match_proto(__be16 protocol, __u8 gso_type)
 	case VIRTIO_NET_HDR_GSO_TCPV6:
 		return protocol == cpu_to_be16(ETH_P_IPV6);
 	case VIRTIO_NET_HDR_GSO_UDP:
+	case VIRTIO_NET_HDR_GSO_UDP_L4:
 		return protocol == cpu_to_be16(ETH_P_IP) ||
 		       protocol == cpu_to_be16(ETH_P_IPV6);
 	default:
@@ -31,6 +32,7 @@ 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 +71,11 @@ 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 +189,8 @@ 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)
-- 
2.38.1

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Virtualization@lists.linux-foundation.org
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  parent reply	other threads:[~2022-12-07 11:52 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-07 11:35 [PATCH v5 0/6] TUN/VirtioNet USO features support Andrew Melnychenko
2022-12-07 11:35 ` Andrew Melnychenko
2022-12-07 11:35 ` [PATCH v5 1/6] udp: allow header check for dodgy GSO_UDP_L4 packets Andrew Melnychenko
2022-12-07 11:35   ` Andrew Melnychenko
2022-12-07 11:35 ` [PATCH v5 2/6] uapi/linux/if_tun.h: Added new offload types for USO4/6 Andrew Melnychenko
2022-12-07 11:35   ` Andrew Melnychenko
2022-12-07 11:35 ` [PATCH v5 3/6] driver/net/tun: Added features for USO Andrew Melnychenko
2022-12-07 11:35   ` Andrew Melnychenko
2022-12-07 11:35 ` [PATCH v5 4/6] uapi/linux/virtio_net.h: Added USO types Andrew Melnychenko
2022-12-07 11:35   ` Andrew Melnychenko
2022-12-07 11:35 ` Andrew Melnychenko [this message]
2022-12-07 11:35   ` [PATCH v5 5/6] linux/virtio_net.h: Support USO offload in vnet header Andrew Melnychenko
2022-12-07 11:35 ` [PATCH v5 6/6] drivers/net/virtio_net.c: Added USO support Andrew Melnychenko
2022-12-07 11:35   ` Andrew Melnychenko
2022-12-12  9:40 ` [PATCH v5 0/6] TUN/VirtioNet USO features support patchwork-bot+netdevbpf

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