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: Ioana Ciornei <ioana.cior...@nxp.com>
---
drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
index 9114437645a8..c6885912c60b 100644
--- a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
@@ -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,
--
2.25.1
_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
