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Egress VID for layer 2 multicast is determined from two tables, the MPE and PGT tables. The MPE table is a two dimensional table indexed by local port and SMPE index, which should be thought of as a FID index. In Spectrum-1 the SMPE index is derived from the PGT entry, whereas in Spectrum-2 and newer ASICs the SMPE index is a FID attribute configured via the SFMR register. The validity of the SMPE index in SFMR is influenced from two factors: 1. FID family. SMPE index is reserved for rFIDs, as their flooding is handled by firmware. 2. ASIC generation. SMPE index is always reserved for Spectrum-1. As such, the validity of the SMPE index should be an attribute of the FID family and have different arrays of FID families per-ASIC type. As a preparation for SMPE index configuration, create separate arrays of FID families for different ASICs. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.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.