leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

bridge: Allow max MTU when multiple VLANs present

Browse Source 
If the bridge is allowing multiple VLANs, some VLANs may have
different MTUs.  Instead of choosing the minimum MTU for the
bridge interface, choose the maximum MTU of the bridge members.
With this the user only needs to set a larger MTU on the member
ports that are participating in the large MTU VLANS.

Signed-off-by: Chas Williams <3chas3@gmail.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Acked-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Chas Williams
2018-03-22 11:34:06 -04:00
committed by David S. Miller
parent bda7fab548
commit 419d14af9e
4 changed files with 25 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
net/bridge/br_device.c
View File

@@ -224,7 +224,7 @@ static void br_get_stats64(struct net_device *dev,
static int br_change_mtu(struct net_device *dev, int new_mtu)
{
struct net_bridge *br = netdev_priv(dev);
if (new_mtu > br_min_mtu(br))
if (new_mtu > br_mtu(br))
return -EINVAL;
dev->mtu = new_mtu;