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Offloading MACsec when its configured over VLAN with current MACsec TX steering rules will wrongly insert MACsec sec tag after inserting the VLAN header leading to a ETHERNET | SECTAG | VLAN packet when ETHERNET | VLAN | SECTAG is configured. The above issue is due to adding the SECTAG by HW which is a later stage compared to the VLAN header insertion stage. Detect such a case and adjust TX steering rules to insert the SECTAG in the correct place by using reformat_param_0 field in the packet reformat to indicate the offset of SECTAG from end of the MAC header to account for VLANs in granularity of 4Bytes. Signed-off-by: Emeel Hakim <ehakim@nvidia.com> Reviewed-by: Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.