mlxsw: Add support for more than 256 ports in SBSR register

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Add 'port_page' field in SBSR to be able to query occupancy of more than
256 ports. The field determines the range of the ports specified in the
'ingress_port_mask' and 'egress_port_mask' bit masks:
>From '256 * port_page' to '256 * port_page + 255'.

For each local port, the appropriate port page is used. A query is never
performed for a port range that spans multiple port pages.

Signed-off-by: Amit Cohen <amcohen@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Amit Cohen 2021-12-01 10:12:38 +02:00 • committed by David S. Miller

parent c934757d90

commit f8538aec88

2 changed files with 31 additions and 5 deletions

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10

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

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26

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

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