i40e/i40evf: Cache the CEE TLV status returned from firmware

Store the CEE TLV status returned by firmware to allow drivers to dump that
for debug purposes.

Change-ID: Ie3c4cf8cebabee4f15e1e3fdc4fc8a68bbca40ee
Signed-off-by: Neerav Parikh <neerav.parikh@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

Author: Neerav Parikh

drivers/net/ethernet/intel/i40e/i40e_dcb.c

@@ -588,6 +588,8 @@ i40e_status i40e_get_dcb_config(struct i40e_hw *hw)
 		if (!ret) {
 			/* CEE mode */
 			hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
+			hw->local_dcbx_config.tlv_status =
+					le16_to_cpu(cee_v1_cfg.tlv_status);
 			i40e_cee_to_dcb_v1_config(&cee_v1_cfg,
 						  &hw->local_dcbx_config);
 		}
@@ -597,6 +599,8 @@ i40e_status i40e_get_dcb_config(struct i40e_hw *hw)
 		if (!ret) {
 			/* CEE mode */
 			hw->local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
+			hw->local_dcbx_config.tlv_status =
+					le32_to_cpu(cee_cfg.tlv_status);
 			i40e_cee_to_dcb_config(&cee_cfg,
 					       &hw->local_dcbx_config);
 		}

drivers/net/ethernet/intel/i40e/i40e_type.h

@@ -440,6 +440,7 @@ struct i40e_dcbx_config {
 #define I40E_DCBX_MODE_CEE	0x1
 #define I40E_DCBX_MODE_IEEE	0x2
 	u32 numapps;
+	u32 tlv_status; /* CEE mode TLV status */
 	struct i40e_dcb_ets_config etscfg;
 	struct i40e_dcb_ets_config etsrec;
 	struct i40e_dcb_pfc_config pfc;

drivers/net/ethernet/intel/i40evf/i40e_type.h

@@ -434,6 +434,7 @@ struct i40e_ieee_app_priority_table {
 
 struct i40e_dcbx_config {
 	u32 numapps;
+	u32 tlv_status; /* CEE mode TLV status */
 	struct i40e_ieee_ets_config etscfg;
 	struct i40e_ieee_ets_recommend etsrec;
 	struct i40e_ieee_pfc_config pfc;