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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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127 lines
2.9 KiB
C
127 lines
2.9 KiB
C
#ifndef MY_ABC_HERE
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#define MY_ABC_HERE
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#endif
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// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (c) 2007-2012 Nicira, Inc.
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*/
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#include <linux/netdevice.h>
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#include <net/genetlink.h>
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#include <net/netns/generic.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 void dp_detach_port_notify(struct vport *vport)
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{
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struct sk_buff *notify;
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struct datapath *dp;
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dp = vport->dp;
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notify = ovs_vport_cmd_build_info(vport, ovs_dp_get_net(dp),
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0, 0, OVS_VPORT_CMD_DEL);
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ovs_dp_detach_port(vport);
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if (IS_ERR(notify)) {
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genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0,
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0, PTR_ERR(notify));
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return;
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}
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genlmsg_multicast_netns(&dp_vport_genl_family,
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ovs_dp_get_net(dp), notify, 0,
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0, GFP_KERNEL);
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}
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void ovs_dp_notify_wq(struct work_struct *work)
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{
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struct ovs_net *ovs_net = container_of(work, struct ovs_net, dp_notify_work);
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struct datapath *dp;
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ovs_lock();
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list_for_each_entry(dp, &ovs_net->dps, list_node) {
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int i;
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for (i = 0; i < DP_VPORT_HASH_BUCKETS; i++) {
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struct vport *vport;
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struct hlist_node *n;
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hlist_for_each_entry_safe(vport, n, &dp->ports[i], dp_hash_node) {
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if (vport->ops->type == OVS_VPORT_TYPE_INTERNAL)
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continue;
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if (!(netif_is_ovs_port(vport->dev)))
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dp_detach_port_notify(vport);
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}
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}
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}
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ovs_unlock();
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}
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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 ovs_net *ovs_net;
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struct net_device *dev = netdev_notifier_info_to_dev(ptr);
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struct vport *vport = NULL;
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if (!ovs_is_internal_dev(dev))
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vport = ovs_netdev_get_vport(dev);
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if (!vport)
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return NOTIFY_DONE;
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#ifdef MY_ABC_HERE
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if (dev->priv_flags & IFF_OVS_DATAPATH &&
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(NETDEV_CHANGE == event ||
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NETDEV_UP == event ||
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NETDEV_DOWN == event)) {
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struct net_device *ovs_eth_dev = syno_ovs_eth_get_from_eth(dev);
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struct net_device *ovs_bond_dev = syno_ovs_bond_get_from_eth(dev);
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if (unlikely(ovs_eth_dev && ovs_bond_dev)) {
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net_warn_ratelimited("%s: is slave of %s and %s.\n",
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dev->name,
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ovs_eth_dev->name,
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ovs_bond_dev->name);
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dev_put(ovs_eth_dev);
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dev_put(ovs_bond_dev);
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return NOTIFY_DONE;
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} else if (ovs_eth_dev) {
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if (netif_carrier_ok(dev) != netif_carrier_ok(ovs_eth_dev)) {
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if (netif_carrier_ok(dev))
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netif_carrier_on(ovs_eth_dev);
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else
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netif_carrier_off(ovs_eth_dev);
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}
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dev_put(ovs_eth_dev);
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} else if (ovs_bond_dev) {
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syno_ovs_bond_set_carrier(ovs_bond_dev);
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dev_put(ovs_bond_dev);
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}
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return NOTIFY_OK;
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}
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#endif /* MY_ABC_HERE */
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if (event == NETDEV_UNREGISTER) {
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/* upper_dev_unlink and decrement promisc immediately */
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ovs_netdev_detach_dev(vport);
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/* schedule vport destroy, dev_put and genl notification */
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ovs_net = net_generic(dev_net(dev), ovs_net_id);
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queue_work(system_wq, &ovs_net->dp_notify_work);
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}
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return NOTIFY_DONE;
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}
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struct notifier_block ovs_dp_device_notifier = {
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.notifier_call = dp_device_event
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};
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