netdev - Re: [patch net-next 3/6] net: add netif_is_ovs_master helper with IFF

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Date:	Wed, 26 Aug 2015 10:24:55 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Jiri Pirko <jiri@...nulli.us>, netdev@...r.kernel.org
CC:	davem@...emloft.net, idosch@...lanox.com, eladr@...lanox.com,
	sfeldma@...il.com, simon.horman@...ronome.com,
	Jiri Pirko <jiri@...lanox.com>
Subject: Re: [patch net-next 3/6] net: add netif_is_ovs_master helper with
 IFF_OPENVSWITCH private flag

On 26/08/15 09:36, Jiri Pirko wrote:
> From: Jiri Pirko <jiri@...lanox.com>
> 
> Add this helper so code can easily figure out if netdev is openswitch.
> 
> Signed-off-by: Jiri Pirko <jiri@...lanox.com>
> ---
>  include/linux/netdevice.h            | 8 ++++++++
>  net/openvswitch/vport-internal_dev.c | 2 +-
>  2 files changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index be625f4..0a884e6 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -1264,6 +1264,7 @@ struct net_device_ops {
>   * @IFF_MACVLAN: Macvlan device
>   * @IFF_VRF_MASTER: device is a VRF master
>   * @IFF_NO_QUEUE: device can run without qdisc attached
> + * @IFF_VRF_OPENVSWITCH: device is a Open vSwitch master

Typo, the flag you introduced is named IFF_OPENVSWITCH, not VFR_OPENSWITCH.

>   */
>  enum netdev_priv_flags {
>  	IFF_802_1Q_VLAN			= 1<<0,
> @@ -1293,6 +1294,7 @@ enum netdev_priv_flags {
>  	IFF_IPVLAN_SLAVE		= 1<<24,
>  	IFF_VRF_MASTER			= 1<<25,
>  	IFF_NO_QUEUE			= 1<<26,
> +	IFF_OPENVSWITCH			= 1<<27,
>  };
>  
>  #define IFF_802_1Q_VLAN			IFF_802_1Q_VLAN
> @@ -1322,6 +1324,7 @@ enum netdev_priv_flags {
>  #define IFF_IPVLAN_SLAVE		IFF_IPVLAN_SLAVE
>  #define IFF_VRF_MASTER			IFF_VRF_MASTER
>  #define IFF_NO_QUEUE			IFF_NO_QUEUE
> +#define IFF_OPENVSWITCH			IFF_OPENVSWITCH
>  
>  /**
>   *	struct net_device - The DEVICE structure.
> @@ -3853,6 +3856,11 @@ static inline bool netif_is_bridge_master(const struct net_device *dev)
>  	return dev->priv_flags & IFF_EBRIDGE;
>  }
>  
> +static inline bool netif_is_ovs_master(const struct net_device *dev)
> +{
> +	return dev->priv_flags & IFF_OPENVSWITCH;
> +}
> +
>  static inline bool netif_index_is_vrf(struct net *net, int ifindex)
>  {
>  	bool rc = false;
> diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
> index c058bbf..80b3e12 100644
> --- a/net/openvswitch/vport-internal_dev.c
> +++ b/net/openvswitch/vport-internal_dev.c
> @@ -135,7 +135,7 @@ static void do_setup(struct net_device *netdev)
>  	netdev->netdev_ops = &internal_dev_netdev_ops;
>  
>  	netdev->priv_flags &= ~IFF_TX_SKB_SHARING;
> -	netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
> +	netdev->priv_flags |= IFF_LIVE_ADDR_CHANGE | IFF_OPENVSWITCH;
>  	netdev->destructor = internal_dev_destructor;
>  	netdev->ethtool_ops = &internal_dev_ethtool_ops;
>  	netdev->rtnl_link_ops = &internal_dev_link_ops;
> 


-- 
Florian
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