enic: Feature Add: Add loopback capability to enic devices

Hardware has the loopback capability to queue the packets transmitted from
a device to the receive queue of the same device. enic now supports the
loopback capability.

Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/net/enic/vnic_enet.h b/drivers/net/enic/vnic_enet.h
index 8eeb6758491b..42baaa13ce59 100644
--- a/drivers/net/enic/vnic_enet.h
+++ b/drivers/net/enic/vnic_enet.h
@@ -35,6 +35,7 @@ struct vnic_enet_config {
         u8 intr_mode;
         char devname[16];
         u32 intr_timer_usec;
+        u16 loop_tag;
 };
 
 #define VENETF_TSO              0x1     /* TSO enabled */
@@ -48,5 +49,6 @@ struct vnic_enet_config {
 #define VENETF_RSSHASH_TCPIPV6  0x100   /* Hash on TCP + IPv6 fields */
 #define VENETF_RSSHASH_IPV6_EX  0x200   /* Hash on IPv6 extended fields */
 #define VENETF_RSSHASH_TCPIPV6_EX 0x400 /* Hash on TCP + IPv6 ext. fields */
+#define VENETF_LOOP             0x800   /* Loopback enabled */
 
 #endif /* _VNIC_ENIC_H_ */