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Message-ID: <20231015141644.260646-5-akihiko.odaki@daynix.com>
Date: Sun, 15 Oct 2023 23:16:32 +0900
From: Akihiko Odaki <akihiko.odaki@...nix.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Andrii Nakryiko <andrii@...nel.org>,
Martin KaFai Lau <martin.lau@...ux.dev>,
Song Liu <song@...nel.org>,
Yonghong Song <yonghong.song@...ux.dev>,
John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>,
Stanislav Fomichev <sdf@...gle.com>,
Hao Luo <haoluo@...gle.com>, Jiri Olsa <jolsa@...nel.org>,
Jonathan Corbet <corbet@....net>,
Willem de Bruijn <willemdebruijn.kernel@...il.com>,
Jason Wang <jasowang@...hat.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
"Michael S. Tsirkin" <mst@...hat.com>,
Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
Mykola Lysenko <mykolal@...com>, Shuah Khan <shuah@...nel.org>,
bpf@...r.kernel.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org,
linux-kselftest@...r.kernel.org,
Yuri Benditovich <yuri.benditovich@...nix.com>,
Andrew Melnychenko <andrew@...nix.com>,
Akihiko Odaki <akihiko.odaki@...nix.com>
Subject: [RFC PATCH v2 4/7] virtio_net: Add virtio_net_hdr_v1_hash_from_skb()
It is identical with virtio_net_hdr_from_skb() except that it
impelements hash reporting.
Signed-off-by: Akihiko Odaki <akihiko.odaki@...nix.com>
---
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
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