Thread (2 messages) flat view 2 messages, 2 authors, 2021-06-23

Re: [PATCH v1] ibmveth: Set CHECKSUM_PARTIAL if NULL TCP CSUM.

From: patchwork-bot+netdevbpf@kernel.org
Date: 2021-06-23 20:00:07

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Tue, 22 Jun 2021 14:52:15 -0700 you wrote:
TCP checksums on received packets may be set to NULL by the sender if CSO
is enabled. The hypervisor flags these packets as check-sum-ok and the
skb is then flagged CHECKSUM_UNNECESSARY. If these packets are then
forwarded the sender will not request CSO due to the CHECKSUM_UNNECESSARY
flag. The result is a TCP packet sent with a bad checksum. This change
sets up CHECKSUM_PARTIAL on these packets causing the sender to correctly
request CSUM offload.

[...]
Here is the summary with links:
  - [v1] ibmveth: Set CHECKSUM_PARTIAL if NULL TCP CSUM.
    https://git.kernel.org/netdev/net-next/c/7525de2516fb

You are awesome, thank you!
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