LIBCFS_FREE(dev, sizeof(*dev));
}
+static struct kib_dev *
+kiblnd_dev_search(char *ifname)
+{
+ struct kib_dev *alias = NULL;
+ struct kib_dev *dev;
+ char *colon;
+ char *colon2;
+
+ colon = strchr(ifname, ':');
+ list_for_each_entry(dev, &kiblnd_data.kib_devs, ibd_list) {
+ if (strcmp(&dev->ibd_ifname[0], ifname) == 0)
+ return dev;
+
+ if (alias != NULL)
+ continue;
+
+ colon2 = strchr(dev->ibd_ifname, ':');
+ if (colon != NULL)
+ *colon = 0;
+ if (colon2 != NULL)
+ *colon2 = 0;
+
+ if (strcmp(&dev->ibd_ifname[0], ifname) == 0)
+ alias = dev;
+
+ if (colon != NULL)
+ *colon = ':';
+ if (colon2 != NULL)
+ *colon2 = ':';
+ }
+ return alias;
+}
+
+static int
+kiblnd_handle_link_state_change(struct net_device *dev,
+ unsigned char operstate)
+{
+ struct lnet_ni *ni = NULL;
+ struct kib_dev *event_kibdev;
+ struct kib_net *net;
+ struct kib_net *cnxt;
+ bool link_down = !(operstate == IF_OPER_UP);
+ struct in_device *in_dev;
+ bool found_ip = false;
+ DECLARE_CONST_IN_IFADDR(ifa);
+
+ event_kibdev = kiblnd_dev_search(dev->name);
+
+ if (!event_kibdev)
+ goto out;
+
+ list_for_each_entry_safe(net, cnxt, &event_kibdev->ibd_nets, ibn_list) {
+ found_ip = false;
+
+ ni = net->ibn_ni;
+
+ in_dev = __in_dev_get_rtnl(dev);
+ if (!in_dev) {
+ CDEBUG(D_NET, "Interface %s has no IPv4 status.\n",
+ dev->name);
+ CDEBUG(D_NET, "%s: set link fatal state to 1\n",
+ libcfs_nidstr(&net->ibn_ni->ni_nid));
+ atomic_set(&ni->ni_fatal_error_on, 1);
+ continue;
+ }
+ in_dev_for_each_ifa_rtnl(ifa, in_dev) {
+ if (htonl(event_kibdev->ibd_ifip) == ifa->ifa_local)
+ found_ip = true;
+ }
+ endfor_ifa(in_dev);
+
+ if (!found_ip) {
+ CDEBUG(D_NET, "Interface %s has no matching ip\n",
+ dev->name);
+ CDEBUG(D_NET, "%s: set link fatal state to 1\n",
+ libcfs_nidstr(&net->ibn_ni->ni_nid));
+ atomic_set(&ni->ni_fatal_error_on, 1);
+ continue;
+ }
+
+ if (link_down) {
+ CDEBUG(D_NET, "%s: set link fatal state to 1\n",
+ libcfs_nidstr(&net->ibn_ni->ni_nid));
+ atomic_set(&ni->ni_fatal_error_on, link_down);
+ } else {
+ CDEBUG(D_NET, "%s: set link fatal state to %u\n",
+ libcfs_nidstr(&net->ibn_ni->ni_nid),
+ (kiblnd_get_link_status(dev) == 0));
+ atomic_set(&ni->ni_fatal_error_on,
+ (kiblnd_get_link_status(dev) == 0));
+ }
+ }
+out:
+ return 0;
+}
+
+static int
+kiblnd_handle_inetaddr_change(struct in_ifaddr *ifa, unsigned long event)
+{
+ struct kib_dev *event_kibdev;
+ struct kib_net *net;
+ struct kib_net *cnxt;
+ struct net_device *event_netdev = ifa->ifa_dev->dev;
+
+ event_kibdev = kiblnd_dev_search(event_netdev->name);
+
+ if (!event_kibdev)
+ goto out;
+
+ if (htonl(event_kibdev->ibd_ifip) != ifa->ifa_local)
+ goto out;
+
+ list_for_each_entry_safe(net, cnxt, &event_kibdev->ibd_nets,
+ ibn_list) {
+ CDEBUG(D_NET, "%s: set link fatal state to %u\n",
+ libcfs_nidstr(&net->ibn_ni->ni_nid),
+ (event == NETDEV_DOWN));
+ atomic_set(&net->ibn_ni->ni_fatal_error_on,
+ (event == NETDEV_DOWN));
+ }
+out:
+ return 0;
+}
+
+
+/************************************
+ * Net device notifier event handler
+ ************************************/
+static int kiblnd_device_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(ptr);
+ unsigned char operstate;
+
+ operstate = dev->operstate;
+
+ CDEBUG(D_NET, "devevent: status=%ld, iface=%s ifindex %d state %u\n",
+ event, dev->name, dev->ifindex, operstate);
+
+ switch (event) {
+ case NETDEV_UP:
+ case NETDEV_DOWN:
+ case NETDEV_CHANGE:
+ kiblnd_handle_link_state_change(dev, operstate);
+ break;
+ }
+
+ return NOTIFY_OK;
+}
+
+/************************************
+ * Inetaddr notifier event handler
+ ************************************/
+static int kiblnd_inetaddr_event(struct notifier_block *unused,
+ unsigned long event, void *ptr)
+{
+ struct in_ifaddr *ifa = ptr;
+
+ CDEBUG(D_NET, "addrevent: status %ld ip addr %pI4, netmask %pI4.\n",
+ event, &ifa->ifa_address, &ifa->ifa_mask);
+
+ switch (event) {
+ case NETDEV_UP:
+ case NETDEV_DOWN:
+ case NETDEV_CHANGE:
+ kiblnd_handle_inetaddr_change(ifa, event);
+ break;
+
+ }
+ return NOTIFY_OK;
+}
+
+static struct notifier_block kiblnd_dev_notifier_block = {
+ .notifier_call = kiblnd_device_event,
+};
+
+static struct notifier_block kiblnd_inetaddr_notifier_block = {
+ .notifier_call = kiblnd_inetaddr_event,
+};
+
static void
kiblnd_base_shutdown(void)
{
CDEBUG(D_MALLOC, "before LND base cleanup: kmem %lld\n",
libcfs_kmem_read());
+ if (kiblnd_data.kib_init == IBLND_INIT_ALL) {
+ unregister_netdevice_notifier(&kiblnd_dev_notifier_block);
+ unregister_inetaddr_notifier(&kiblnd_inetaddr_notifier_block);
+ }
+
switch (kiblnd_data.kib_init) {
default:
LBUG();
goto failed;
}
+ register_netdevice_notifier(&kiblnd_dev_notifier_block);
+ register_inetaddr_notifier(&kiblnd_inetaddr_notifier_block);
+
/* flag everything initialised */
kiblnd_data.kib_init = IBLND_INIT_ALL;
/*****************************************************/
return 0;
}
-static struct kib_dev *
-kiblnd_dev_search(char *ifname)
-{
- struct kib_dev *alias = NULL;
- struct kib_dev *dev;
- char *colon;
- char *colon2;
-
- colon = strchr(ifname, ':');
- list_for_each_entry(dev, &kiblnd_data.kib_devs, ibd_list) {
- if (strcmp(&dev->ibd_ifname[0], ifname) == 0)
- return dev;
-
- if (alias != NULL)
- continue;
-
- colon2 = strchr(dev->ibd_ifname, ':');
- if (colon != NULL)
- *colon = 0;
- if (colon2 != NULL)
- *colon2 = 0;
-
- if (strcmp(&dev->ibd_ifname[0], ifname) == 0)
- alias = dev;
-
- if (colon != NULL)
- *colon = ':';
- if (colon2 != NULL)
- *colon2 = ':';
- }
- return alias;
-}
-
static int
kiblnd_startup(struct lnet_ni *ni)
{
git://git.whamcloud.com / fs / lustre-release.git / blobdiff