[Intel-wired-lan] [PATCH 2/4] geneve: Add geneve udp port offload for ethernet devices

[Keller, Jacob E <jacob.e.keller@intel.com>]

On Thu, 2015-08-20 at 11:46 -0700, Anjali Singhai Jain wrote:
> Add ndo_ops to add/del UDP ports to a device that supports geneve
> offload.
> 
> v2:Added comments for new ndo_ops and minor format fix.
> 
> Signed-off-by: Kiran Patil <kiran.patil@intel.com>
> Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
> ---
>  include/linux/netdevice.h | 20 +++++++++++++++++++-
>  net/ipv4/geneve_core.c    | 22 ++++++++++++++++++++++
>  2 files changed, 41 insertions(+), 1 deletion(-)
> 
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index f3bb290..d6f00c7 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -1016,6 +1016,19 @@ typedef u16 (*select_queue_fallback_t)(struct
> net_device *dev,
>   *	address family that vxlan is not listening to anymore. The
> operation
>   *	is protected by the vxlan_net->sock_lock.
>   *
> + * void (*ndo_add_geneve_port)(struct net_device *dev,
> + *			      sa_family_t sa_family, __be16 port);
> + *	Called by geneve to notiy a driver about the UDP port and
> socket
> + *	address family that geneve is listnening to. It is called
> only when
> + *	a new port starts listening. The operation is protected by
> the
> + *	geneve_net->sock_lock.
> + *
> + * void (*ndo_del_geneve_port)(struct net_device *dev,
> + *			      sa_family_t sa_family, __be16 port);
> + *	Called by geneve to notify the driver about a UDP port and
> socket
> + *	address family that geneve is not listening to anymore.
> The operation
> + *	is protected by the geneve_net->sock_lock.
> + *


Would it make more sense to generalize the ndo op for future protocol
extension instead of continuing to add separate tunnel offload
functions for each one?


ie: generalize ndo_add_vxlan_port into "ndo_add_tunnel_port"?

Maybe it's not worth it though..?

Regards,
Jake