From 546379b9a01b6bdb5b267f8e7433944d5364cbf2 Mon Sep 17 00:00:00 2001 From: Michal Kubecek Date: Thu, 12 Mar 2020 21:08:48 +0100 Subject: ethtool: add CHANNELS_NTF notification Send ETHTOOL_MSG_CHANNELS_NTF notification whenever channel counts of a network device are modified using ETHTOOL_MSG_CHANNELS_SET netlink message or ETHTOOL_SCHANNELS ioctl request. Signed-off-by: Michal Kubecek Signed-off-by: David S. Miller --- net/ethtool/channels.c | 3 +++ net/ethtool/ioctl.c | 6 +++++- net/ethtool/netlink.c | 2 ++ 3 files changed, 10 insertions(+), 1 deletion(-) (limited to 'net/ethtool') diff --git a/net/ethtool/channels.c b/net/ethtool/channels.c index ee232c11acae..8dc5485333a4 100644 --- a/net/ethtool/channels.c +++ b/net/ethtool/channels.c @@ -213,6 +213,9 @@ int ethnl_set_channels(struct sk_buff *skb, struct genl_info *info) } ret = dev->ethtool_ops->set_channels(dev, &channels); + if (ret < 0) + goto out_ops; + ethtool_notify(dev, ETHTOOL_MSG_CHANNELS_NTF, NULL); out_ops: ethnl_ops_complete(dev); diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index 06224a03139e..258840b19fb5 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -1649,6 +1649,7 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev, u16 from_channel, to_channel; u32 max_rx_in_use = 0; unsigned int i; + int ret; if (!dev->ethtool_ops->set_channels || !dev->ethtool_ops->get_channels) return -EOPNOTSUPP; @@ -1680,7 +1681,10 @@ static noinline_for_stack int ethtool_set_channels(struct net_device *dev, if (xdp_get_umem_from_qid(dev, i)) return -EINVAL; - return dev->ethtool_ops->set_channels(dev, &channels); + ret = dev->ethtool_ops->set_channels(dev, &channels); + if (!ret) + ethtool_notify(dev, ETHTOOL_MSG_CHANNELS_NTF, NULL); + return ret; } static int ethtool_get_pauseparam(struct net_device *dev, void __user *useraddr) diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c index f61654b8f210..55c8ce4019d9 100644 --- a/net/ethtool/netlink.c +++ b/net/ethtool/netlink.c @@ -534,6 +534,7 @@ ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = { [ETHTOOL_MSG_FEATURES_NTF] = ðnl_features_request_ops, [ETHTOOL_MSG_PRIVFLAGS_NTF] = ðnl_privflags_request_ops, [ETHTOOL_MSG_RINGS_NTF] = ðnl_rings_request_ops, + [ETHTOOL_MSG_CHANNELS_NTF] = ðnl_channels_request_ops, }; /* default notification handler */ @@ -622,6 +623,7 @@ static const ethnl_notify_handler_t ethnl_notify_handlers[] = { [ETHTOOL_MSG_FEATURES_NTF] = ethnl_default_notify, [ETHTOOL_MSG_PRIVFLAGS_NTF] = ethnl_default_notify, [ETHTOOL_MSG_RINGS_NTF] = ethnl_default_notify, + [ETHTOOL_MSG_CHANNELS_NTF] = ethnl_default_notify, }; void ethtool_notify(struct net_device *dev, unsigned int cmd, const void *data) -- cgit 1.4.1