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[ Upstream commitffffd2454a] Recent sfc NICs are TSO capable for some tunnel protocols. However, it was not working properly because the feature was not advertised in hw_enc_features, but in hw_features only. Setting up a GENEVE tunnel and using iperf3 to send IPv4 and IPv6 traffic to the tunnel show, with tcpdump, that the IPv4 packets still had ~64k size but the IPv6 ones had only ~1500 bytes (they had been segmented by software, not offloaded). With this patch segmentation is offloaded as expected and the traffic is correctly received at the other end. Fixes:24b2c3751a("sfc: advertise encapsulated offloads on EF10") Reported-by: Tianhao Zhao <tizhao@redhat.com> Signed-off-by: Íñigo Huguet <ihuguet@redhat.com> Acked-by: Martin Habets <habetsm.xilinx@gmail.com> Link: https://lore.kernel.org/r/20230125143513.25841-1-ihuguet@redhat.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.