net/mlx5e: Fix wraparound in rate limiting for values above 255 Gbps

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Add validation to reject rates exceeding 255 Gbps that would overflow
the 8 bits max bandwidth field.

Fixes: d8880795da ("net/mlx5e: Implement DCBNL IEEE max rate")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Nimrod Oren <noren@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1762681073-1084058-5-git-send-email-tariqt@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

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Gal Pressman 2025-11-09 11:37:52 +02:00 • committed by Paolo Abeni

parent a7bf4d5063

commit 43b27d1bd8

1 changed files with 9 additions and 1 deletions

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drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c

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