mlxsw: ethtool: Add support for setting lanes when autoneg is off

Browse source

Currently, when auto negotiation is set to off, the user can force a
specific speed or both speed and duplex. The user cannot influence the
number of lanes that will be forced.

Add support for setting speed along with lanes so one would be able
to choose how many lanes will be forced.

When lanes parameter is passed from user space, choose the link mode
that its actual width equals to it.
Otherwise, the default link mode will be the one that supports the width
of the port.

Signed-off-by: Danielle Ratson <danieller@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Danielle Ratson 2021-02-02 20:06:10 +02:00 • committed by Jakub Kicinski

parent 5fc4053df3

commit 763ece86f0

2 changed files with 78 additions and 41 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

3

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

View file

116

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

View file