mirror of
https://github.com/openvswitch/ovs
synced 2025-10-29 15:28:56 +00:00
9197df76b4
Currently the kernel automatically sets the MTU of any internal interfaces to the minimum of all attached interfaces because the Linux bridge does this. Userspace can do this with more knowledge and flexibility. Feature #7323 Signed-off-by: Justin Pettit <jpettit@nicira.com> Acked-by: Jesse Gross <jesse@nicira.com>
69 lines
1.4 KiB
C
69 lines
1.4 KiB
C
/*
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* Distributed under the terms of the GNU GPL version 2.
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* Copyright (c) 2007, 2008, 2009, 2010, 2011 Nicira Networks.
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*
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* Significant portions of this file may be copied from parts of the Linux
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* kernel, by Linus Torvalds and others.
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*/
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/* Handle changes to managed devices */
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#include <linux/netdevice.h>
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#include <net/genetlink.h>
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#include "datapath.h"
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#include "vport-internal_dev.h"
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#include "vport-netdev.h"
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static int dp_device_event(struct notifier_block *unused, unsigned long event,
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void *ptr)
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{
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struct net_device *dev = ptr;
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struct vport *vport;
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struct datapath *dp;
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if (is_internal_dev(dev))
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vport = internal_dev_get_vport(dev);
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else
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vport = netdev_get_vport(dev);
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if (!vport)
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return NOTIFY_DONE;
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dp = vport->dp;
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switch (event) {
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case NETDEV_UNREGISTER:
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if (!is_internal_dev(dev)) {
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struct sk_buff *reply;
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dp_detach_port(vport);
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reply = ovs_vport_cmd_build_info(vport, 0, 0,
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OVS_VPORT_CMD_DEL);
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if (IS_ERR(reply)) {
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netlink_set_err(INIT_NET_GENL_SOCK, 0,
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dp_vport_multicast_group.id,
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PTR_ERR(reply));
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break;
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}
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genl_notify(reply, dev_net(dev), 0,
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dp_vport_multicast_group.id, NULL,
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GFP_KERNEL);
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}
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break;
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case NETDEV_CHANGENAME:
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if (vport->port_no != OVSP_LOCAL) {
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dp_sysfs_del_if(vport);
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dp_sysfs_add_if(vport);
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}
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break;
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}
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return NOTIFY_DONE;
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}
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struct notifier_block dp_device_notifier = {
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.notifier_call = dp_device_event
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};
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