{"id":2196366,"url":"http://patchwork.ozlabs.org/api/1.0/patches/2196366/?format=json","project":{"id":46,"url":"http://patchwork.ozlabs.org/api/1.0/projects/46/?format=json","name":"Intel Wired Ethernet development","link_name":"intel-wired-lan","list_id":"intel-wired-lan.osuosl.org","list_email":"intel-wired-lan@osuosl.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20260213-bpf-xdp-meta-rxcksum-v2-2-a82c4802afbe@kernel.org>","date":"2026-02-13T15:26:21","name":"[bpf-next,v2,2/5] net: veth: Add xmo_rx_checksum callback to veth driver","commit_ref":null,"pull_url":null,"state":"handled-elsewhere","archived":false,"hash":"75b3340175438713b74af912c25ce49a009b06b7","submitter":{"id":76007,"url":"http://patchwork.ozlabs.org/api/1.0/people/76007/?format=json","name":"Lorenzo Bianconi","email":"lorenzo@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260213-bpf-xdp-meta-rxcksum-v2-2-a82c4802afbe@kernel.org/mbox/","series":[{"id":492113,"url":"http://patchwork.ozlabs.org/api/1.0/series/492113/?format=json","date":"2026-02-13T15:26:20","name":"Add the the capability to load HW RX checsum in eBPF programs","version":2,"mbox":"http://patchwork.ozlabs.org/series/492113/mbox/"}],"check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2196366/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":["incoming@patchwork.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","intel-wired-lan@lists.osuosl.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=GGB2wGWv;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::137; 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Miller\" ,\n Eric Dumazet , Paolo Abeni ,\n Simon Horman , Alexei Starovoitov ,\n Daniel Borkmann ,\n Jesper Dangaard Brouer ,\n John Fastabend ,\n Stanislav Fomichev , Andrew Lunn ,\n Tony Nguyen ,\n Przemek Kitszel ,\n Alexander Lobakin ,\n Andrii Nakryiko ,\n Martin KaFai Lau ,\n Eduard Zingerman , Song Liu ,\n Yonghong Song , KP Singh ,\n Hao Luo , Jiri Olsa ,\n Shuah Khan ,\n Maciej Fijalkowski ","Cc":"Jakub Sitnicki , netdev@vger.kernel.org,\n bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org,\n linux-kselftest@vger.kernel.org,\n Aleksandr Loktionov ,\n Lorenzo Bianconi ","X-Mailer":"b4 0.14.2","X-Mailman-Original-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple;\n d=kernel.org; s=k20201202; t=1770996425;\n bh=jzwrIvlfZk6MWSMCC0apFup4Q/S1x/hMT1Pen21jYHM=;\n h=From:Date:Subject:References:In-Reply-To:To:Cc:From;\n b=rwHh1NLb4cG2OfEAbgLg+lNi1i07uP/G2ZALst8A7GRIvdEeMBzHaYrqp+JSreA2f\n 5RHuF//UI8ycWM5gv6G90axt6O2QpAY5gxUW8hqKZtCjxnI5zqfb0V2TnBneeeyOu8\n 7SdQjxpWmxn6ZL8SjCF316eb7HoYCft5uSRPawYvMjh4GdsSIBQLs8JM4rFpamDBWS\n rJ+0nhibZbNspaG23PA96Jug9e0xuBCElYZUbGa84YgI1imSUQFLB6JIJ5NgfUOtYV\n fLMViBBC385xwUaXIft0UR/RpuhHuvR9ftNd4ghfzLjL1hWlaeL+fU6fHFuCe5Iao6\n Yt9FgcroU0Ztg==","X-Mailman-Original-Authentication-Results":["smtp4.osuosl.org;\n dmarc=pass (p=quarantine dis=none)\n header.from=kernel.org","smtp4.osuosl.org;\n dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org\n header.a=rsa-sha256 header.s=k20201202 header.b=rwHh1NLb"],"Subject":"[Intel-wired-lan] [PATCH bpf-next v2 2/5] net: veth: Add\n xmo_rx_checksum callback to veth driver","X-BeenThere":"intel-wired-lan@osuosl.org","X-Mailman-Version":"2.1.30","Precedence":"list","List-Id":"Intel Wired Ethernet Linux Kernel Driver Development\n ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"intel-wired-lan-bounces@osuosl.org","Sender":"\"Intel-wired-lan\" "},"content":"Implement xmo_rx_checksum callback in veth driver to report RX checksum\nresult to the eBPF program bounded to the veth device.\n\nReviewed-by: Aleksandr Loktionov \nSigned-off-by: Lorenzo Bianconi \n---\n drivers/net/veth.c | 30 ++++++++++++++++++++++++++++++\n 1 file changed, 30 insertions(+)","diff":"diff --git a/drivers/net/veth.c b/drivers/net/veth.c\nindex 9982412fd7f238e996ccdff24342974cb25094bf..3ec77599299ae0bbb7df88e5820793065911e88e 100644\n--- a/drivers/net/veth.c\n+++ b/drivers/net/veth.c\n@@ -1697,6 +1697,35 @@ static int veth_xdp_rx_vlan_tag(const struct xdp_md *ctx, __be16 *vlan_proto,\n \treturn err;\n }\n \n+static int veth_xdp_rx_checksum(const struct xdp_md *ctx,\n+\t\t\t\tenum xdp_checksum *ip_summed,\n+\t\t\t\tu32 *cksum_meta)\n+{\n+\tconst struct veth_xdp_buff *_ctx = (void *)ctx;\n+\tconst struct sk_buff *skb = _ctx->skb;\n+\n+\tif (!skb)\n+\t\treturn -ENODATA;\n+\n+\t*ip_summed = skb->ip_summed;\n+\tswitch (skb->ip_summed) {\n+\tcase CHECKSUM_COMPLETE:\n+\t\t*ip_summed = XDP_CHECKSUM_COMPLETE;\n+\t\t*cksum_meta = skb->csum;\n+\t\tbreak;\n+\tcase CHECKSUM_UNNECESSARY:\n+\t\t*ip_summed = XDP_CHECKSUM_UNNECESSARY;\n+\t\t*cksum_meta = skb->csum_level;\n+\t\tbreak;\n+\tdefault:\n+\t\t*ip_summed = XDP_CHECKSUM_NONE;\n+\t\t*cksum_meta = 0;\n+\t\tbreak;\n+\t}\n+\n+\treturn 0;\n+}\n+\n static const struct net_device_ops veth_netdev_ops = {\n \t.ndo_init = veth_dev_init,\n \t.ndo_open = veth_open,\n@@ -1722,6 +1751,7 @@ static const struct xdp_metadata_ops veth_xdp_metadata_ops = {\n \t.xmo_rx_timestamp\t\t= veth_xdp_rx_timestamp,\n \t.xmo_rx_hash\t\t\t= veth_xdp_rx_hash,\n \t.xmo_rx_vlan_tag\t\t= veth_xdp_rx_vlan_tag,\n+\t.xmo_rx_checksum\t\t= veth_xdp_rx_checksum,\n };\n \n #define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HW_CSUM | \\\n","prefixes":["bpf-next","v2","2/5"]}