From: sashiko-bot@kernel.org
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: virtualization@lists.linux.dev, "Eugenio Perez" <eperezma@redhat.com>
Subject: Re: [PATCH net-next v2 1/7] net: account for ingress-resolved virtio net hdr state
Date: Fri, 16 Oct 2026 12:42:10 +0000 [thread overview]
Message-ID: <sashiko-outbox-174316@kernel.org> (raw)
In-Reply-To: <885c413aa895291c0b404e639aa85d1e33353e81.1792067836.git.mst@redhat.com>
> The following patch will add ingress resolution of uncommon virtio net
> hdr checksum metadata (software checksum completion at ingress) which
> adds performance overhead to the packet processing.
>
> We should make it visible, so a hypothetical workload relying on
> uncommon metadata can be distinguished from none at all. This way issues
> in the parsing will be reported and not quietly pay the host-CPU
> checksum overhead instead of offload.
>
> Flip every call to virtio_net_hdr_to_skb to test for negative errno
> only, and have tun count these events per device as rx_csum_sw, exposed
> via ethtool -S.
>
> Assisted-by: LLM
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/cover.1792067836.git.mst@redhat.com?part=1
next prev parent reply other threads:[~2026-10-16 12:42 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 12:41 [PATCH net-next v2 0/7] more virtio-net csum hardening Michael S. Tsirkin
2026-10-15 12:41 ` [PATCH net-next v2 1/7] net: account for ingress-resolved virtio net hdr state Michael S. Tsirkin
2026-10-16 12:42 ` sashiko-bot [this message]
2026-10-15 12:41 ` [PATCH net-next v2 2/7] um: vector: honor virtio net hdr conversion failures Michael S. Tsirkin
2026-10-15 12:47 ` Johannes Berg
2026-10-15 12:52 ` Michael S. Tsirkin
2026-10-15 12:55 ` Johannes Berg
2026-10-16 9:37 ` Michael S. Tsirkin
2026-10-16 9:43 ` Michael S. Tsirkin
2026-10-16 9:44 ` Johannes Berg
2026-10-16 9:47 ` Michael S. Tsirkin
2026-10-16 9:49 ` Johannes Berg
2026-10-16 9:53 ` Michael S. Tsirkin
2026-10-15 17:19 ` Willem de Bruijn
2026-10-16 9:40 ` Michael S. Tsirkin
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 3/7] um: vector: trim skbs before verifying the header Michael S. Tsirkin
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 4/7] net: resolve uncommon partial checksums at ingress Michael S. Tsirkin
2026-10-15 17:43 ` Willem de Bruijn
2026-10-15 19:18 ` Chris Arges
2026-10-16 9:34 ` Michael S. Tsirkin
2026-10-16 9:36 ` Michael S. Tsirkin
2026-10-15 18:04 ` Willem de Bruijn
2026-10-15 18:07 ` Willem de Bruijn
2026-10-16 10:02 ` Michael S. Tsirkin
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 5/7] net: add a sysctl to opt out of virtio net hdr checksum validation Michael S. Tsirkin
2026-10-15 17:50 ` Willem de Bruijn
2026-10-16 9:33 ` Michael S. Tsirkin
2026-10-16 15:30 ` Willem de Bruijn
2026-10-16 17:51 ` Michael S. Tsirkin
2026-10-16 18:19 ` Willem de Bruijn
2026-10-16 18:40 ` Michael S. Tsirkin
2026-10-17 1:09 ` Willem de Bruijn
2026-10-16 17:55 ` Michael S. Tsirkin
2026-10-16 18:17 ` Willem de Bruijn
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 6/7] net: add ip4_parse() Michael S. Tsirkin
2026-10-15 18:51 ` Phil Sutter
2026-10-16 11:56 ` Björn Töpel
2026-10-16 12:42 ` sashiko-bot
2026-10-15 12:41 ` [PATCH net-next v2 7/7] virtio_net: cleanup protocol calculation Michael S. Tsirkin
2026-10-16 11:52 ` Björn Töpel
2026-10-16 12:42 ` sashiko-bot
2026-10-15 19:21 ` [PATCH net-next v2 0/7] more virtio-net csum hardening Chris Arges
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