Thread (4 messages) 4 messages, 3 authors, 2024-09-26

Re: [RESEND PATCH v3] virtio_net: Fix mismatched buf address when unmapping for small packets

From: patchwork-bot+netdevbpf@kernel.org
Date: 2024-09-26 08:40:26
Also in: lkml, virtualization

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni [off-list ref]:

On Thu, 19 Sep 2024 16:13:51 +0800 you wrote:
Currently, the virtio-net driver will perform a pre-dma-mapping for
small or mergeable RX buffer. But for small packets, a mismatched address
without VIRTNET_RX_PAD and xdp_headroom is used for unmapping.

That will result in unsynchronized buffers when SWIOTLB is enabled, for
example, when running as a TDX guest.

[...]
Here is the summary with links:
  - [RESEND,v3] virtio_net: Fix mismatched buf address when unmapping for small packets
    https://git.kernel.org/netdev/net/c/c11a49d58ad2

You are awesome, thank you!
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