net/mlx5e: Fix return status when setting unsupported FEC mode

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Verify the configured FEC mode is supported by at least a single link
mode before applying the command. Otherwise fail the command and return
"Operation not supported".
Prior to this patch, the command was successful, yet it falsely set all
link modes to FEC auto mode - like configuring FEC mode to auto. Auto
mode is the default configuration if a link mode doesn't support the
configured FEC mode.

Fixes: b5ede32d33 ("net/mlx5e: Add support for FEC modes based on 50G per lane links")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@nvidia.com>
Reviewed-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

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Aya Levin 2020-08-12 10:44:36 +03:00 • committed by Saeed Mahameed

parent 3d093bc236

commit 2608a2f831

1 changed files with 3 additions and 0 deletions

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drivers/net/ethernet/mellanox/mlx5/core/en/port.c

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