summaryrefslogtreecommitdiff
path: root/net/ethtool/netlink.c
diff options
context:
space:
mode:
authorMichal Kubecek <mkubecek@suse.cz>2020-03-12 23:08:03 +0300
committerDavid S. Miller <davem@davemloft.net>2020-03-13 01:32:33 +0300
commit9c6451ef4881c2f528c625766e8bb9af5e40941a (patch)
treeca7ef69adba1907b240efe5eaa3aad6c71d18a11 /net/ethtool/netlink.c
parent0980bfcd6954f124e40a000b85335c197764de14 (diff)
downloadlinux-9c6451ef4881c2f528c625766e8bb9af5e40941a.tar.xz
ethtool: add FEATURES_NTF notification
Send ETHTOOL_MSG_FEATURES_NTF notification whenever network device features are modified using ETHTOOL_MSG_FEATURES_SET netlink message, ethtool ioctl request or any other way resulting in call to netdev_update_features() or netdev_change_features() Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ethtool/netlink.c')
-rw-r--r--net/ethtool/netlink.c29
1 files changed, 28 insertions, 1 deletions
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c
index 757ea3fc98a0..5c0e361bfd66 100644
--- a/net/ethtool/netlink.c
+++ b/net/ethtool/netlink.c
@@ -528,6 +528,7 @@ ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = {
[ETHTOOL_MSG_LINKMODES_NTF] = &ethnl_linkmodes_request_ops,
[ETHTOOL_MSG_DEBUG_NTF] = &ethnl_debug_request_ops,
[ETHTOOL_MSG_WOL_NTF] = &ethnl_wol_request_ops,
+ [ETHTOOL_MSG_FEATURES_NTF] = &ethnl_features_request_ops,
};
/* default notification handler */
@@ -613,6 +614,7 @@ static const ethnl_notify_handler_t ethnl_notify_handlers[] = {
[ETHTOOL_MSG_LINKMODES_NTF] = ethnl_default_notify,
[ETHTOOL_MSG_DEBUG_NTF] = ethnl_default_notify,
[ETHTOOL_MSG_WOL_NTF] = ethnl_default_notify,
+ [ETHTOOL_MSG_FEATURES_NTF] = ethnl_default_notify,
};
void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data)
@@ -630,6 +632,29 @@ void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data)
}
EXPORT_SYMBOL(ethtool_notify);
+static void ethnl_notify_features(struct netdev_notifier_info *info)
+{
+ struct net_device *dev = netdev_notifier_info_to_dev(info);
+
+ ethtool_notify(dev, ETHTOOL_MSG_FEATURES_NTF, NULL);
+}
+
+static int ethnl_netdev_event(struct notifier_block *this, unsigned long event,
+ void *ptr)
+{
+ switch (event) {
+ case NETDEV_FEAT_CHANGE:
+ ethnl_notify_features(ptr);
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block ethnl_netdev_notifier = {
+ .notifier_call = ethnl_netdev_event,
+};
+
/* genetlink setup */
static const struct genl_ops ethtool_genl_ops[] = {
@@ -736,7 +761,9 @@ static int __init ethnl_init(void)
return ret;
ethnl_ok = true;
- return 0;
+ ret = register_netdevice_notifier(&ethnl_netdev_notifier);
+ WARN(ret < 0, "ethtool: net device notifier registration failed");
+ return ret;
}
subsys_initcall(ethnl_init);