linux-kernel - [PATCH 3/6] staging: dpaa2-ethsw: setup the STP state for all installed VLANs

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Date:   Tue, 21 Jul 2020 12:19:16 +0300
From:   Ioana Ciornei <ioana.ciornei@....com>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, devel@...verdev.osuosl.org,
        Ioana Ciornei <ioana.ciornei@....com>
Subject: [PATCH 3/6] staging: dpaa2-ethsw: setup the STP state for all installed VLANs

Setup the STP state for all VLANs installed on the port. This is also
avoiding the error situation when the DEFAULT_VLAN_ID is not installed
on the port (thus the firmware complains that it cannot setup the
required STP state).

Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
---
 drivers/staging/fsl-dpaa2/ethsw/ethsw.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
index 530e4105375c..83e6bd4a803b 100644
--- a/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
+++ b/drivers/staging/fsl-dpaa2/ethsw/ethsw.c
@@ -183,21 +183,26 @@ static int ethsw_port_set_flood(struct ethsw_port_priv *port_priv, bool enable)
 static int ethsw_port_set_stp_state(struct ethsw_port_priv *port_priv, u8 state)
 {
 	struct dpsw_stp_cfg stp_cfg = {
-		.vlan_id = DEFAULT_VLAN_ID,
 		.state = state,
 	};
 	int err;
+	u16 vid;
 
 	if (!netif_running(port_priv->netdev) || state == port_priv->stp_state)
 		return 0;	/* Nothing to do */
 
-	err = dpsw_if_set_stp(port_priv->ethsw_data->mc_io, 0,
-			      port_priv->ethsw_data->dpsw_handle,
-			      port_priv->idx, &stp_cfg);
-	if (err) {
-		netdev_err(port_priv->netdev,
-			   "dpsw_if_set_stp err %d\n", err);
-		return err;
+	for (vid = 0; vid <= VLAN_VID_MASK; vid++) {
+		if (port_priv->vlans[vid] & ETHSW_VLAN_MEMBER) {
+			stp_cfg.vlan_id = vid;
+			err = dpsw_if_set_stp(port_priv->ethsw_data->mc_io, 0,
+					      port_priv->ethsw_data->dpsw_handle,
+					      port_priv->idx, &stp_cfg);
+			if (err) {
+				netdev_err(port_priv->netdev,
+					   "dpsw_if_set_stp err %d\n", err);
+				return err;
+			}
+		}
 	}
 
 	port_priv->stp_state = state;
-- 
2.25.1