Re: [PATCH net-next V6 3/4] devlink: Parse eswitch mode boot defaults

Tue, Jul 14, 2026 at 08:17:29AM +0200, mbloch@nvidia.com wrote:

Add devlink_eswitch_mode= kernel command line parsing for a default
eswitch mode.

The supported syntax selects either all devlink handles or one explicit
comma-separated handle list:

 devlink_eswitch_mode=*=<mode>

 devlink_eswitch_mode=<handle>[,<handle>...]=<mode>

where <mode> is one of legacy, switchdev or switchdev_inactive. All
selected handles receive the same mode. Assigning different modes to
different handle lists in the same parameter value is not supported.

Store the parsed selector and mode in devlink core so the default can be
applied by a downstream patch.

Document the devlink_eswitch_mode= syntax and duplicate handle handling.

Signed-off-by: Mark Bloch <mbloch@nvidia.com>

Reviewed-by: Jiri Pirko <redacted>