Commit 1867a402 authored by Ioana Ciornei's avatar Ioana Ciornei Committed by Greg Kroah-Hartman
Browse files

staging: dpaa2-ethsw: read the port state from firmware 



Rely on the port state seen by the firmware since it will also be the
one erroring out when trying to setup anything major when the port is
up.

Signed-off-by: default avatarIoana Ciornei <ioana.ciornei@nxp.com>
Link: https://lore.kernel.org/r/20200721091919.20394-6-ioana.ciornei@nxp.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent adcdd57d

drivers/staging/fsl-dpaa2/ethsw/ethsw.c

+20 −1
Original line number Diff line number Diff line
@@ -43,6 +43,25 @@ static int ethsw_add_vlan(struct ethsw_core *ethsw, u16 vid) 
	return 0;

}



static bool ethsw_port_is_up(struct ethsw_port_priv *port_priv)

{

	struct net_device *netdev = port_priv->netdev;

	struct dpsw_link_state state;

	int err;



	err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0,

				     port_priv->ethsw_data->dpsw_handle,

				     port_priv->idx, &state);

	if (err) {

		netdev_err(netdev, "dpsw_if_get_link_state() err %d\n", err);

		return true;

	}



	WARN_ONCE(state.up > 1, "Garbage read into link_state");



	return state.up ? true : false;

}



static int ethsw_port_set_pvid(struct ethsw_port_priv *port_priv, u16 pvid)

{

	struct ethsw_core *ethsw = port_priv->ethsw_data;
@@ -61,7 +80,7 @@ static int ethsw_port_set_pvid(struct ethsw_port_priv *port_priv, u16 pvid) 
	tci_cfg.vlan_id = pvid;



	/* Interface needs to be down to change PVID */

	up = netif_running(netdev);

	up = ethsw_port_is_up(port_priv);

	if (up) {

		err = dpsw_if_disable(ethsw->mc_io, 0,

				      ethsw->dpsw_handle,

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