From: Marcin Szycik <marcin.szycik@intel.com>
Date: Mon, 18 Oct 2021 13:30:32 +0200
Subject: ice: Add support for changing MTU on PR in switchdev mode
Patch-mainline: v5.16-rc1
Git-commit: e984c4408fc9a88d7eb51f241aee41f71c71f080
References: jsc#SLE-18375

This change adds support for changing MTU on port representor in
switchdev mode, by setting the min/max MTU values on port representor
netdev. Before it was possible to change the MTU only in a limited,
default range (68-1500).

Signed-off-by: Marcin Szycik <marcin.szycik@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ice/ice_repr.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/net/ethernet/intel/ice/ice_repr.c
+++ b/drivers/net/ethernet/intel/ice/ice_repr.c
@@ -267,6 +267,9 @@ static int ice_repr_add(struct ice_vf *v
 	if (err)
 		goto err_devlink;
 
+	repr->netdev->min_mtu = ETH_MIN_MTU;
+	repr->netdev->max_mtu = ICE_MAX_MTU;
+
 	err = ice_repr_reg_netdev(repr->netdev);
 	if (err)
 		goto err_netdev;