[RFC PATCH v2 4/7] virtio_net: Add virtio_net_hdr_v1_hash_from_skb()
From: Akihiko Odaki <hidden>
Date: 2023-10-15 14:18:02
Also in:
bpf, kvm, linux-doc, linux-kselftest, lkml
Subsystem:
the rest, virtio core, virtio net driver · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang
It is identical with virtio_net_hdr_from_skb() except that it impelements hash reporting. Signed-off-by: Akihiko Odaki <redacted> --- include/linux/virtio_net.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 7b4dd69555e4..01e594b4586b 100644
--- a/include/linux/virtio_net.h
+++ b/include/linux/virtio_net.h@@ -216,4 +216,26 @@ static inline int virtio_net_hdr_from_skb(const struct sk_buff *skb, return 0; } +static inline int virtio_net_hdr_v1_hash_from_skb(const struct sk_buff *skb, + struct virtio_net_hdr_v1_hash *hdr, + bool little_endian, + bool has_data_valid, + int vlan_hlen, + u32 hash_value, + u16 hash_report) +{ + int ret; + + memset(hdr, 0, sizeof(*hdr)); + + ret = virtio_net_hdr_from_skb(skb, (struct virtio_net_hdr *)hdr, + little_endian, has_data_valid, vlan_hlen); + if (!ret) { + hdr->hash_value = cpu_to_le32(hash_value); + hdr->hash_report = cpu_to_le16(hash_report); + } + + return ret; +} + #endif /* _LINUX_VIRTIO_NET_H */
--
2.42.0