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0f0d3827c0
Multi chain support requires the miss path to continue the processing from the last chain id, and for that we need to save the chain miss tag (a mapping for 32bit chain id) on reg_c0 which will come in a next patch. Currently reg_c0 is exclusively used to store the source port metadata, giving it 32bit, it is created from 16bits of vcha_id, and 16bits of vport number. We will move this source port metadata to upper 16bits, and leave the lower bits for the chain miss tag. We compress the reg_c0 source port metadata to 16bits by taking 8 bits from vhca_id, and 8bits from the vport number. Since we compress the vport number to 8bits statically, and leave two top ids for special PF/ECPF numbers, we will only support a max of 254 vports with this strategy. Signed-off-by: Paul Blakey <paulb@mellanox.com> Reviewed-by: Oz Shlomo <ozsh@mellanox.com> Reviewed-by: Mark Bloch <markb@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> |
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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.