Tue, Sep 06, 2016 at 05:08:25PM CEST, ro...@cumulusnetworks.com wrote:
>On 9/5/16, 10:18 AM, Jiri Pirko wrote:
>> From: Nogah Frankel <nog...@mellanox.com>
>>
>> Add a new ndo to return statistics for offloaded operation.
>> Since there can be many different offloaded operation with many
>> stats types, the ndo gets an attribute id by which it knows which
>> stats are wanted. The ndo also gets a void pointer to be cast according
>> to the attribute id.
>>
>> Signed-off-by: Nogah Frankel <nog...@mellanox.com>
>> Signed-off-by: Jiri Pirko <j...@mellanox.com>
>> ---
>> include/linux/netdevice.h | 12 ++++++++++++
>> 1 file changed, 12 insertions(+)
>>
>> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
>> index 67bb978..2d2c09b 100644
>> --- a/include/linux/netdevice.h
>> +++ b/include/linux/netdevice.h
>> @@ -924,6 +924,14 @@ struct netdev_xdp {
>> * 3. Update dev->stats asynchronously and atomically, and define
>> * neither operation.
>> *
>> + * bool (*ndo_has_offload_stats)(int attr_id)
>> + * Return true if this device supports offload stats of this attr_id.
>> + *
>> + * int (*ndo_get_offload_stats)(int attr_id, const struct net_device *dev,
>> + * void *attr_data)
>> + * Get statistics for offload operations by attr_id. Write it into the
>> + * attr_data pointer.
>> + *
>
>this could have been a single ndo_get_offload_stats like the others.
>and possibly new ndo_get_offload_stats_size.
Size is determined by the attribute.
>Ideally the driver could do the nest.
>But, this can be changed if needed in the future.
>
>> * int (*ndo_vlan_rx_add_vid)(struct net_device *dev, __be16 proto, u16
>> vid);
>> * If device supports VLAN filtering this function is called when a
>> * VLAN id is registered.
>> @@ -1155,6 +1163,10 @@ struct net_device_ops {
>>
>> struct rtnl_link_stats64* (*ndo_get_stats64)(struct net_device *dev,
>> struct rtnl_link_stats64
>> *storage);
>> + bool (*ndo_has_offload_stats)(int attr_id);
>> + int (*ndo_get_offload_stats)(int attr_id,
>> + const struct
>> net_device *dev,
>> + void *attr_data);
>> struct net_device_stats* (*ndo_get_stats)(struct net_device *dev);
>>
>> int (*ndo_vlan_rx_add_vid)(struct net_device *dev,
>
