[PATCH net-next 3/6] enic: Check if hw supports multi wq with vxlan offload

[Govindarajulu Varadarajan]

Some adaptors do not support vxlan offload when multi wq is configured.

If hw supports multi wq, BIT(2) is set in a1.

Signed-off-by: Govindarajulu Varadarajan <gvara...@cisco.com>
---
 drivers/net/ethernet/cisco/enic/enic_main.c   | 5 +++++
 drivers/net/ethernet/cisco/enic/vnic_devcmd.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c 
b/drivers/net/ethernet/cisco/enic/enic_main.c
index 848aac477cff..3280a05f9cf1 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -212,6 +212,11 @@ static void enic_udp_tunnel_add(struct net_device *netdev,
 
                goto error;
        }
+       if ((vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ) != 1) &&
+           !(enic->vxlan.flags & ENIC_VXLAN_MULTI_WQ)) {
+               netdev_info(netdev, "vxlan: vxlan offload with multi wq not 
supported on this adapter");
+               goto error;
+       }
 
        err = vnic_dev_overlay_offload_cfg(enic->vdev,
                                           OVERLAY_CFG_VXLAN_PORT_UPDATE,
diff --git a/drivers/net/ethernet/cisco/enic/vnic_devcmd.h 
b/drivers/net/ethernet/cisco/enic/vnic_devcmd.h
index 69529a3516cd..8fce9ef1c9bc 100644
--- a/drivers/net/ethernet/cisco/enic/vnic_devcmd.h
+++ b/drivers/net/ethernet/cisco/enic/vnic_devcmd.h
@@ -699,6 +699,7 @@ enum overlay_ofld_cmd {
 
 #define ENIC_VXLAN_INNER_IPV6          BIT(0)
 #define ENIC_VXLAN_OUTER_IPV6          BIT(1)
+#define ENIC_VXLAN_MULTI_WQ            BIT(2)
 
 /* Use this enum to get the supported versions for each of these features
  * If you need to use the devcmd_get_supported_feature_version(), add
-- 
2.16.2