net/mlx5e: Verify coalescing parameters in range

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Add check of coalescing parameters received through ethtool are within
range of values supported by the HW.
Driver gets the coalescing rx/tx-usecs and rx/tx-frames as set by the
users through ethtool. The ethtool support up to 32 bit value for each.
However, mlx5 modify cq limits the coalescing time parameter to 12 bit
and coalescing frames parameters to 16 bits.
Return out of range error if user tries to set these parameters to
higher values.

Fixes: f62b8bb8f2 ('net/mlx5: Extend mlx5_core to support ConnectX-4 Ethernet functionality')
Signed-off-by: Moshe Shemesh <moshe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

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Moshe Shemesh 2018-02-15 12:41:48 +02:00 • committed by Saeed Mahameed

parent f125376b06

commit b392a2078b

1 changed files with 17 additions and 0 deletions

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

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