netdev - [PATCH 2/3] dsa: Handle the local_receive flag in the DSA layer.

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Date:   Tue,  1 Mar 2022 13:31:03 +0100
From:   Mattias Forsblad <mattias.forsblad@...il.com>
To:     netdev@...r.kernel.org
Cc:     "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Roopa Prabhu <roopa@...dia.com>,
        Nikolay Aleksandrov <razor@...ckwall.org>,
        Mattias Forsblad <mattias.forsblad+netdev@...il.com>
Subject: [PATCH 2/3] dsa: Handle the local_receive flag in the DSA layer.

Add infrastructure to be able to handle the local_receive
flag to the DSA layer.

Signed-off-by: Mattias Forsblad <mattias.forsblad+netdev@...il.com>
---
 include/net/dsa.h  |  6 ++++++
 net/dsa/dsa_priv.h |  1 +
 net/dsa/slave.c    | 16 ++++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/include/net/dsa.h b/include/net/dsa.h
index cfedcfb86350..3abd7cfad7a0 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -925,6 +925,12 @@ struct dsa_switch_ops {
 	void	(*get_regs)(struct dsa_switch *ds, int port,
 			    struct ethtool_regs *regs, void *p);
 
+	/*
+	 * Local receive
+	 */
+	int	(*set_local_receive)(struct dsa_switch *ds, int port,
+				     struct net_device *bridge, bool enable);
+
 	/*
 	 * Upper device tracking.
 	 */
diff --git a/net/dsa/dsa_priv.h b/net/dsa/dsa_priv.h
index 07c0ad52395a..33e607615e63 100644
--- a/net/dsa/dsa_priv.h
+++ b/net/dsa/dsa_priv.h
@@ -217,6 +217,7 @@ int dsa_port_vlan_filtering(struct dsa_port *dp, bool vlan_filtering,
 			    struct netlink_ext_ack *extack);
 bool dsa_port_skip_vlan_configuration(struct dsa_port *dp);
 int dsa_port_ageing_time(struct dsa_port *dp, clock_t ageing_clock);
+int dsa_port_set_local_receive(struct dsa_port *dp, struct net_device *br, bool enable);
 int dsa_port_mtu_change(struct dsa_port *dp, int new_mtu,
 			bool targeted_match);
 int dsa_port_fdb_add(struct dsa_port *dp, const unsigned char *addr,
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 089616206b11..50f88b0bd851 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -295,6 +295,12 @@ static int dsa_slave_port_attr_set(struct net_device *dev, const void *ctx,
 		ret = dsa_port_vlan_filtering(dp, attr->u.vlan_filtering,
 					      extack);
 		break;
+	case SWITCHDEV_ATTR_ID_BRIDGE_LOCAL_RECEIVE:
+		if (!dsa_port_offloads_bridge_dev(dp, attr->orig_dev))
+			return -EOPNOTSUPP;
+
+		ret = dsa_port_set_local_receive(dp, attr->orig_dev, attr->u.local_receive);
+		break;
 	case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME:
 		if (!dsa_port_offloads_bridge_dev(dp, attr->orig_dev))
 			return -EOPNOTSUPP;
@@ -671,6 +677,16 @@ dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p)
 		ds->ops->get_regs(ds, dp->index, regs, _p);
 }
 
+int dsa_port_set_local_receive(struct dsa_port *dp, struct net_device *br, bool enable)
+{
+	struct dsa_switch *ds = dp->ds;
+
+	if (ds->ops->set_local_receive)
+		return ds->ops->set_local_receive(ds, dp->index, br, enable);
+
+	return 0;
+}
+
 static int dsa_slave_nway_reset(struct net_device *dev)
 {
 	struct dsa_port *dp = dsa_slave_to_port(dev);
-- 
2.25.1