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authorAnuradha Karuppiah <anuradhak@cumulusnetworks.com>2015-07-14 22:43:21 +0200
committerDavid S. Miller <davem@davemloft.net>2015-07-16 06:39:40 +0200
commitc305524617dcd617d698dfe2682f3212e698f781 (patch)
tree7f28ceeeac184512de8789d4cb1898ff0bb33240 /drivers
parentnetlink: changes for setting and clearing protodown via netlink. (diff)
downloadlinux-c305524617dcd617d698dfe2682f3212e698f781.tar.xz
linux-c305524617dcd617d698dfe2682f3212e698f781.zip
rocker: Handle protodown notifications.
protodown can be set by user space applications like MLAG on detecting errors on a switch port. This patch provides sample switch driver changes for handling protodown. Rocker PHYS disables the port in response to protodown. Signed-off-by: Anuradha Karuppiah <anuradhak@cumulusnetworks.com> Signed-off-by: Andy Gospodarek <gospo@cumulusnetworks.com> Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com> Signed-off-by: Wilson Kok <wkok@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/ethernet/rocker/rocker.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/net/ethernet/rocker/rocker.c b/drivers/net/ethernet/rocker/rocker.c
index c0051673c9fa..932428314b80 100644
--- a/drivers/net/ethernet/rocker/rocker.c
+++ b/drivers/net/ethernet/rocker/rocker.c
@@ -4015,7 +4015,8 @@ static int rocker_port_open(struct net_device *dev)
napi_enable(&rocker_port->napi_tx);
napi_enable(&rocker_port->napi_rx);
- rocker_port_set_enable(rocker_port, true);
+ if (!dev->proto_down)
+ rocker_port_set_enable(rocker_port, true);
netif_start_queue(dev);
return 0;
@@ -4227,6 +4228,17 @@ static int rocker_port_get_phys_port_name(struct net_device *dev,
return err ? -EOPNOTSUPP : 0;
}
+static int rocker_port_change_proto_down(struct net_device *dev,
+ bool proto_down)
+{
+ struct rocker_port *rocker_port = netdev_priv(dev);
+
+ if (rocker_port->dev->flags & IFF_UP)
+ rocker_port_set_enable(rocker_port, !proto_down);
+ rocker_port->dev->proto_down = proto_down;
+ return 0;
+}
+
static const struct net_device_ops rocker_port_netdev_ops = {
.ndo_open = rocker_port_open,
.ndo_stop = rocker_port_stop,
@@ -4240,6 +4252,7 @@ static const struct net_device_ops rocker_port_netdev_ops = {
.ndo_fdb_del = switchdev_port_fdb_del,
.ndo_fdb_dump = switchdev_port_fdb_dump,
.ndo_get_phys_port_name = rocker_port_get_phys_port_name,
+ .ndo_change_proto_down = rocker_port_change_proto_down,
};
/********************