Lorenzo Bianconi 26c0986cb6 net: mvpp2: Add metadata support for xdp mode
[ Upstream commit 9a45e193c8 ]

Set metadata size building the skb from xdp_buff in mvpp2 driver
mvpp2 driver sets xdp headroom to:

MVPP2_MH_SIZE + MVPP2_SKB_HEADROOM

where

MVPP2_MH_SIZE 2
MVPP2_SKB_HEADROOM min(max(XDP_PACKET_HEADROOM, NET_SKB_PAD), 224)

so the headroom is large enough to contain xdp_frame and xdp metadata.
Please note this patch is just compiled tested.

Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://patch.msgid.link/20250318-mvneta-xdp-meta-v2-2-b6075778f61f@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 77a6b90ce5 ("net: mvpp2: build skb from XDP-adjusted data on XDP_PASS")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2026-06-19 13:39:31 +02:00
2026-05-23 13:03:09 +02:00
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2026-05-23 13:03:09 +02:00
2026-06-01 17:43:16 +02:00
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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.
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