``ETHTOOL_MSG_WOL_NTF`` wake-on-lan settings notification
``ETHTOOL_MSG_FEATURES_GET_REPLY`` device features
``ETHTOOL_MSG_FEATURES_SET_REPLY`` optional reply to FEATURES_SET
+ ``ETHTOOL_MSG_FEATURES_NTF`` netdev features notification
===================================== =================================
``GET`` requests are sent by userspace applications to retrieve device
bits which have changed, values are their values in new dev->features (after
the operation).
+``ETHTOOL_MSG_FEATURES_NTF`` notification is sent not only if device features
+are modified using ``ETHTOOL_MSG_FEATURES_SET`` request or on of ethtool ioctl
+request but also each time features are modified with netdev_update_features()
+or netdev_change_features().
+
Request translation
===================
ETHTOOL_MSG_WOL_NTF,
ETHTOOL_MSG_FEATURES_GET_REPLY,
ETHTOOL_MSG_FEATURES_SET_REPLY,
+ ETHTOOL_MSG_FEATURES_NTF,
/* add new constants above here */
__ETHTOOL_MSG_KERNEL_CNT,
struct nlattr *tb[ETHTOOL_A_FEATURES_MAX + 1];
struct ethnl_req_info req_info = {};
struct net_device *dev;
+ bool mod;
int ret;
ret = nlmsg_parse(info->nlhdr, GENL_HDRLEN, tb,
dev->wanted_features = ethnl_bitmap_to_features(req_wanted);
__netdev_update_features(dev);
ethnl_features_to_bitmap(new_active, dev->features);
+ mod = !bitmap_equal(old_active, new_active, NETDEV_FEATURE_COUNT);
ret = 0;
if (!(req_info.flags & ETHTOOL_FLAG_OMIT_REPLY)) {
wanted_diff_mask, new_active,
active_diff_mask, compact);
}
+ if (mod)
+ ethtool_notify(dev, ETHTOOL_MSG_FEATURES_NTF, NULL);
out_rtnl:
rtnl_unlock();
[ETHTOOL_MSG_LINKMODES_NTF] = ðnl_linkmodes_request_ops,
[ETHTOOL_MSG_DEBUG_NTF] = ðnl_debug_request_ops,
[ETHTOOL_MSG_WOL_NTF] = ðnl_wol_request_ops,
+ [ETHTOOL_MSG_FEATURES_NTF] = ðnl_features_request_ops,
};
/* default notification handler */
[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)
}
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[] = {
return ret;
ethnl_ok = true;
- return 0;
+ ret = register_netdevice_notifier(ðnl_netdev_notifier);
+ WARN(ret < 0, "ethtool: net device notifier registration failed");
+ return ret;
}
subsys_initcall(ethnl_init);