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/enic.h b/drivers/net/enic/enic.h
index 3588ef5e7e4c..7280314804a3 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -110,6 +110,8 @@ struct enic {
         spinlock_t wq_lock[ENIC_WQ_MAX];
         unsigned int wq_count;
         struct vlan_group *vlan_group;
+        u16 loop_enable;
+        u16 loop_tag;
 
         /* receive queue cache line section */
         ____cacheline_aligned struct vnic_rq rq[ENIC_RQ_MAX];