> -----Original Message-----
> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Vijayakumar Muthuvel
> Manickam
> Sent: Tuesday, June 16, 2015 2:40 PM
> To: dev at dpdk.org
> Subject: [dpdk-dev] [PATCH v3] kni: Add link status update
>
> 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>
Acked-by: Helin Zhang <helin.zhang at intel.com>
> ---
> Added kernel version check as .ndo_change_carrier is available only in kernel
> versions 3.9 and after
>
> lib/librte_eal/linuxapp/kni/kni_net.c | 14 ++++++++++++++
> 1 file changed, 14 insertions(+)
>
> diff --git a/lib/librte_eal/linuxapp/kni/kni_net.c
> b/lib/librte_eal/linuxapp/kni/kni_net.c
> index dd95db5..9f9022b 100644
> --- a/lib/librte_eal/linuxapp/kni/kni_net.c
> +++ b/lib/librte_eal/linuxapp/kni/kni_net.c
> @@ -632,6 +632,17 @@ static int kni_net_set_mac(struct net_device *netdev,
> void *p)
> return 0;
> }
>
> +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 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;
> +}
> +#endif
> +
> static const struct header_ops kni_net_header_ops = {
> .create = kni_net_header,
> .rebuild = kni_net_rebuild_header,
> @@ -648,6 +659,9 @@ 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,
> +#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 9, 0))
> + .ndo_change_carrier = kni_net_change_carrier, #endif
> };
>
> void
> --
> 1.8.1.4
