From: Roopa Prabhu <roopa@cumulusnetworks.com>
Date: Fri, 30 Jan 2015 06:40:16 +0000 (-0800)
Subject: bonding: handle NETIF_F_HW_SWITCH_OFFLOAD flag and add ndo_bridge_setlink/dellink... 
X-Git-Tag: firefly_0821_release~176^2~2371^2~88^2~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c158cba38ccd6e7c7787a6ec904d97b9d22537f5;p=firefly-linux-kernel-4.4.55.git

bonding: handle NETIF_F_HW_SWITCH_OFFLOAD flag and add ndo_bridge_setlink/dellink handlers

We want bond to pick up the offload flag if any of its slaves have it.

NETIF_F_HW_SWITCH_OFFLOAD flag is added to the mask, so that
netdev_increment_features does not ignore it.

This also adds ndo_bridge_setlink and ndo_bridge_dellink handlers.
These currently point to the default handlers provided by the
switchdev api.

Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index e229a8657de8..c9e519cb9214 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -77,6 +77,7 @@
 #include <net/pkt_sched.h>
 #include <linux/rculist.h>
 #include <net/flow_keys.h>
+#include <net/switchdev.h>
 #include <net/bonding.h>
 #include <net/bond_3ad.h>
 #include <net/bond_alb.h>
@@ -979,7 +980,11 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
 	netdev_features_t mask;
 	struct slave *slave;
 
-	mask = features;
+	/* If any slave has the offload feature flag set,
+	 * set the offload flag on the bond.
+	 */
+	mask = features | NETIF_F_HW_SWITCH_OFFLOAD;
+
 	features &= ~NETIF_F_ONE_FOR_ALL;
 	features |= NETIF_F_ALL_FOR_ALL;
 
@@ -3952,6 +3957,8 @@ static const struct net_device_ops bond_netdev_ops = {
 	.ndo_add_slave		= bond_enslave,
 	.ndo_del_slave		= bond_release,
 	.ndo_fix_features	= bond_fix_features,
+	.ndo_bridge_setlink	= ndo_dflt_netdev_switch_port_bridge_setlink,
+	.ndo_bridge_dellink	= ndo_dflt_netdev_switch_port_bridge_dellink,
 };
 
 static const struct device_type bond_type = {