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authorIdo Schimmel <idosch@mellanox.com>2015-12-15 16:03:35 +0100
committerDavid S. Miller <davem@davemloft.net>2015-12-15 17:58:20 +0100
commit6ff64f6f9242d7e50f3e99cb280f69d1927a5fa6 (patch)
tree85d9661650c22ab27fe654433360f9e33172f7b9 /net/core
parentswitchdev: vlan: Use switchdev_port* in vlan_netdev_ops (diff)
downloadlinux-6ff64f6f9242d7e50f3e99cb280f69d1927a5fa6.tar.xz
linux-6ff64f6f9242d7e50f3e99cb280f69d1927a5fa6.zip
switchdev: Pass original device to port netdev driver
switchdev drivers need to know the netdev on which the switchdev op was invoked. For example, the STP state of a VLAN interface configured on top of a port can change while being member in a bridge. In this case, the underlying driver should only change the STP state of that particular VLAN and not of all the VLANs configured on the port. However, current switchdev infrastructure only passes the port netdev down to the driver. Solve that by passing the original device down to the driver as part of the required switchdev object / attribute. This doesn't entail any change in current switchdev drivers. It simply enables those supporting stacked devices to know the originating device and act accordingly. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/net-sysfs.c1
-rw-r--r--net/core/rtnetlink.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index f88a62ab019d..bca8c350e7f3 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -471,6 +471,7 @@ static ssize_t phys_switch_id_show(struct device *dev,
if (dev_isalive(netdev)) {
struct switchdev_attr attr = {
+ .orig_dev = netdev,
.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
.flags = SWITCHDEV_F_NO_RECURSE,
};
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 34ba7a08876d..d8b0113d3eec 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1027,6 +1027,7 @@ static int rtnl_phys_switch_id_fill(struct sk_buff *skb, struct net_device *dev)
{
int err;
struct switchdev_attr attr = {
+ .orig_dev = dev,
.id = SWITCHDEV_ATTR_ID_PORT_PARENT_ID,
.flags = SWITCHDEV_F_NO_RECURSE,
};