mlxsw: spectrum: Use different arrays of FID families per-ASIC type

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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>

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This commit is contained in:

Amit Cohen 2022-06-23 10:17:35 +03:00 • committed by David S. Miller

parent 2c09104801

commit 04e85970ce

3 changed files with 17 additions and 2 deletions

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4

drivers/net/ethernet/mellanox/mlxsw/spectrum.c

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drivers/net/ethernet/mellanox/mlxsw/spectrum.h

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drivers/net/ethernet/mellanox/mlxsw/spectrum_fid.c

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