On Mon, 15 Jun 2015 04:21:43 -0400
Vijayakumar Muthuvel Manickam <mmvijay at gmail.com> wrote:
> Implement .ndo_change_carrier to enable
> DPDK applications to propagate link state changes to
> kni virtual interfaces through sysfs
>
> Signed-off-by: Vijayakumar Muthuvel Manickam <mmvijay at gmail.com>
> ---
> Implemented .ndo_change_carrier instead of adding a new ioctl
>
> lib/librte_eal/linuxapp/kni/kni_net.c | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/lib/librte_eal/linuxapp/kni/kni_net.c
> b/lib/librte_eal/linuxapp/kni/kni_net.c
> index dd95db5..10c94ce 100644
> --- a/lib/librte_eal/linuxapp/kni/kni_net.c
> +++ b/lib/librte_eal/linuxapp/kni/kni_net.c
> @@ -632,6 +632,15 @@ static int kni_net_set_mac(struct net_device *netdev,
> void *p)
> return 0;
> }
>
> +static int kni_net_change_carrier(struct net_device *dev, bool new_carrier)
> +{
> + if (new_carrier)
> + netif_carrier_on(dev);
> + else
> + netif_carrier_off(dev);
> + return 0;
> +}
> +
> static const struct header_ops kni_net_header_ops = {
> .create = kni_net_header,
> .rebuild = kni_net_rebuild_header,
> @@ -648,6 +657,7 @@ static const struct net_device_ops kni_net_netdev_ops = {
> .ndo_get_stats = kni_net_stats,
> .ndo_tx_timeout = kni_net_tx_timeout,
> .ndo_set_mac_address = kni_net_set_mac,
> + .ndo_change_carrier = kni_net_change_carrier,
> };
>
> void
Acked-by: Stephen Hemminger <stephen at networkplumber.org>
You might need to have a kernel version test?? since carrier change was
introduced in 3.9 kernel
