diff --git a/Documentation/networking/ethtool-netlink.rst b/Documentation/networking/ethtool-netlink.rst index 7df7476cf31088bc2cb8550e048656c0edf53152..31a601cafa3fc768cdaab39bef40a71ecc8636e7 100644 --- a/Documentation/networking/ethtool-netlink.rst +++ b/Documentation/networking/ethtool-netlink.rst @@ -220,6 +220,7 @@ Kernel to userspace: ``ETHTOOL_MSG_RINGS_GET_REPLY`` ring sizes ``ETHTOOL_MSG_RINGS_NTF`` ring sizes ``ETHTOOL_MSG_CHANNELS_GET_REPLY`` channel counts + ``ETHTOOL_MSG_CHANNELS_NTF`` channel counts ===================================== ================================= ``GET`` requests are sent by userspace applications to retrieve device diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h index f1384a8f3534a9911855b50b6df12271c52b40a2..c7c7a1a550afb2e94c66c2fc197d343dd371558a 100644 --- a/include/uapi/linux/ethtool_netlink.h +++ b/include/uapi/linux/ethtool_netlink.h @@ -59,6 +59,7 @@ enum { ETHTOOL_MSG_RINGS_GET_REPLY, ETHTOOL_MSG_RINGS_NTF, ETHTOOL_MSG_CHANNELS_GET_REPLY, + ETHTOOL_MSG_CHANNELS_NTF, /* add new constants above here */ __ETHTOOL_MSG_KERNEL_CNT, diff --git a/net/ethtool/channels.c b/net/ethtool/channels.c index ee232c11acaec06d9fb244edb8bc5d7e36941f7f..8dc5485333a4e668561248401165c2ec21dee845 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 06224a03139e8a390a7280caf4da1c044104a528..258840b19fb5c3317dd869dcecfd8f9d246d7936 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 f61654b8f2103ed574beabe04eeed2fbc23e3c68..55c8ce4019d92a54f26bc5c3dd588eef60e7898e 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)