/**
* i40iw_inetaddr_event - system notifier for ipv4 addr events
* @notfier: not used
* @event: event for notifier
* @ptr: if address
*/
int i40iw_inetaddr_event(struct notifier_block *notifier,
unsigned long event,
void *ptr)
{
struct in_ifaddr *ifa = ptr;
struct net_device *event_netdev = ifa->ifa_dev->dev;
struct net_device *netdev;
struct net_device *upper_dev;
struct i40iw_device *iwdev;
struct i40iw_handler *hdl;
u32 local_ipaddr;
u32 action = I40IW_ARP_ADD;
hdl = i40iw_find_netdev(event_netdev);
if (!hdl)
return NOTIFY_DONE;
iwdev = &hdl->device;
if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing)
return NOTIFY_DONE;
netdev = iwdev->ldev->netdev;
upper_dev = netdev_master_upper_dev_get(netdev);
if (netdev != event_netdev)
return NOTIFY_DONE;
if (upper_dev) {
struct in_device *in;
rcu_read_lock();
in = __in_dev_get_rcu(upper_dev);
local_ipaddr = ntohl(in->ifa_list->ifa_address);
rcu_read_unlock();
} else {
local_ipaddr = ntohl(ifa->ifa_address);
}
switch (event) {
case NETDEV_DOWN:
action = I40IW_ARP_DELETE;
/* Fall through */
case NETDEV_UP:
/* Fall through */
case NETDEV_CHANGEADDR:
i40iw_manage_arp_cache(iwdev,
netdev->dev_addr,
&local_ipaddr,
true,
action);
i40iw_if_notify(iwdev, netdev, &local_ipaddr, true,
(action == I40IW_ARP_ADD) ? true : false);
break;
default:
break;
}
return NOTIFY_DONE;
}
/**
* i40iw_inet6addr_event - system notifier for ipv6 addr events
* @notfier: not used
* @event: event for notifier
* @ptr: if address
*/
int i40iw_inet6addr_event(struct notifier_block *notifier,
unsigned long event,
void *ptr)
{
struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)ptr;
struct net_device *event_netdev = ifa->idev->dev;
struct net_device *netdev;
struct i40iw_device *iwdev;
struct i40iw_handler *hdl;
u32 local_ipaddr6[4];
u32 action = I40IW_ARP_ADD;
hdl = i40iw_find_netdev(event_netdev);
if (!hdl)
return NOTIFY_DONE;
iwdev = &hdl->device;
if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing)
return NOTIFY_DONE;
netdev = iwdev->ldev->netdev;
if (netdev != event_netdev)
return NOTIFY_DONE;
i40iw_copy_ip_ntohl(local_ipaddr6, ifa->addr.in6_u.u6_addr32);
switch (event) {
case NETDEV_DOWN:
action = I40IW_ARP_DELETE;
/* Fall through */
case NETDEV_UP:
/* Fall through */
case NETDEV_CHANGEADDR:
i40iw_manage_arp_cache(iwdev,
netdev->dev_addr,
local_ipaddr6,
false,
action);
i40iw_if_notify(iwdev, netdev, local_ipaddr6, false,
(action == I40IW_ARP_ADD) ? true : false);
break;
default:
break;
}
return NOTIFY_DONE;
}
/**
* i40iw_net_event - system notifier for netevents
* @notfier: not used
* @event: event for notifier
* @ptr: neighbor
*/
int i40iw_net_event(struct notifier_block *notifier, unsigned long event, void *ptr)
{
struct neighbour *neigh = ptr;
struct i40iw_device *iwdev;
struct i40iw_handler *iwhdl;
__be32 *p;
u32 local_ipaddr[4];
switch (event) {
case NETEVENT_NEIGH_UPDATE:
iwhdl = i40iw_find_netdev((struct net_device *)neigh->dev);
if (!iwhdl)
return NOTIFY_DONE;
iwdev = &iwhdl->device;
if (iwdev->init_state < IP_ADDR_REGISTERED || iwdev->closing)
return NOTIFY_DONE;
p = (__be32 *)neigh->primary_key;
i40iw_copy_ip_ntohl(local_ipaddr, p);
if (neigh->nud_state & NUD_VALID) {
i40iw_manage_arp_cache(iwdev,
neigh->ha,
local_ipaddr,
false,
I40IW_ARP_ADD);
} else {
i40iw_manage_arp_cache(iwdev,
neigh->ha,
local_ipaddr,
false,
I40IW_ARP_DELETE);
}
break;
default:
break;
}
return NOTIFY_DONE;
}
/**
* i40iw_netdevice_event - system notifier for netdev events
* @notfier: not used
* @event: event for notifier
* @ptr: netdev
*/
int i40iw_netdevice_event(struct notifier_block *notifier,
unsigned long event,
void *ptr)
{
struct net_device *event_netdev;
struct net_device *netdev;
struct i40iw_device *iwdev;
struct i40iw_handler *hdl;
event_netdev = netdev_notifier_info_to_dev(ptr);
hdl = i40iw_find_netdev(event_netdev);
if (!hdl)
return NOTIFY_DONE;
iwdev = &hdl->device;
if (iwdev->init_state < RDMA_DEV_REGISTERED || iwdev->closing)
return NOTIFY_DONE;
netdev = iwdev->ldev->netdev;
if (netdev != event_netdev)
return NOTIFY_DONE;
iwdev->iw_status = 1;
switch (event) {
case NETDEV_DOWN:
iwdev->iw_status = 0;
/* Fall through */
case NETDEV_UP:
i40iw_port_ibevent(iwdev);
break;
default:
break;
}
return NOTIFY_DONE;
}
