ethtool: Introduce n-tuple filter programming support

This patchset enables the ethtool layer to program n-tuple
filters to an underlying device.  The idea is to allow capable
hardware to have static rules applied that can assist steering
flows into appropriate queues.

Hardware that is known to support these types of filters today
are ixgbe and niu.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e535700a3b72..cdf53a8d9ff5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -746,6 +746,7 @@ struct net_device {
 #define NETIF_F_FCOE_CRC        (1 << 24) /* FCoE CRC32 */
 #define NETIF_F_SCTP_CSUM       (1 << 25) /* SCTP checksum offload */
 #define NETIF_F_FCOE_MTU        (1 << 26) /* Supports max FCoE MTU, 2158 bytes*/
+#define NETIF_F_NTUPLE          (1 << 27) /* N-tuple filters supported */
 
         /* Segmentation offload features */
 #define NETIF_F_GSO_SHIFT       16
@@ -954,6 +955,8 @@ struct net_device {
         /* max exchange id for FCoE LRO by ddp */
         unsigned int            fcoe_ddp_xid;
 #endif
+        /* n-tuple filter list attached to this device */
+        struct ethtool_rx_ntuple_list ethtool_ntuple_list;
 };
 #define to_net_dev(d) container_of(d, struct net_device, dev)