net/mlx5e: E-switch, Fix rate calculation for overflow

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[ Upstream commit 1fe3e3166b ]

rate_bytes_ps is a 64-bit field. It passed as 32-bit field to
apply_police_params(). Due to this when police rate is higher
than 4Gbps, 32-bit calculation ignores the carry. This results
in incorrect rate configurationn the device.

Fix it by performing 64-bit calculation.

Fixes: fcb64c0f56 ("net/mlx5: E-Switch, add ingress rate support")
Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Parav Pandit 2021-01-12 16:13:22 +02:00 • committed by Greg Kroah-Hartman

parent d62665cac6

commit 2778913fb0

1 changed files with 8 additions and 3 deletions

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

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