ice: process events created by lag netdev event handler

Add in the function framework for the processing of LAG events.  Also add
in helper function to perform common tasks.

Add the basis of the process of linking a lower netdev to an upper netdev.
Reviewed-by: Daniel Machon <daniel.machon@microchip.com>
Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

drivers/net/ethernet/intel/ice/ice_lag.h

@@ -56,6 +56,7 @@ struct ice_lag_work {
 	} info;
 };
 
+void ice_lag_move_new_vf_nodes(struct ice_vf *vf);
 int ice_init_lag(struct ice_pf *pf);
 void ice_deinit_lag(struct ice_pf *pf);
 #endif /* _ICE_LAG_H_ */

drivers/net/ethernet/intel/ice/ice_switch.c

@@ -25,7 +25,6 @@
  *      In case of Ether type filter it is treated as header without VLAN tag
  *      and byte 12 and 13 is used to program a given Ether type instead
  */
-#define DUMMY_ETH_HDR_LEN		16
 static const u8 dummy_eth_header[DUMMY_ETH_HDR_LEN] = { 0x2, 0, 0, 0, 0, 0,
 							0x2, 0, 0, 0, 0, 0,
 							0x81, 0, 0, 0};
@@ -2460,6 +2459,15 @@ static void ice_fill_sw_info(struct ice_hw *hw, struct ice_fltr_info *fi)
 	}
 }
 
+/**
+ * ice_fill_eth_hdr - helper to copy dummy_eth_hdr into supplied buffer
+ * @eth_hdr: pointer to buffer to populate
+ */
+void ice_fill_eth_hdr(u8 *eth_hdr)
+{
+	memcpy(eth_hdr, dummy_eth_header, DUMMY_ETH_HDR_LEN);
+}
+
 /**
  * ice_fill_sw_rule - Helper function to fill switch rule structure
  * @hw: pointer to the hardware structure

drivers/net/ethernet/intel/ice/ice_switch.h

@@ -30,6 +30,8 @@
 	ICE_SW_RULE_RX_TX_HDR_SIZE((s), 0)
 #define ICE_SW_RULE_LG_ACT_SIZE(s, n)		struct_size((s), act, (n))
 
+#define DUMMY_ETH_HDR_LEN		16
+
 /* VSI context structure for add/get/update/free operations */
 struct ice_vsi_ctx {
 	u16 vsi_num;
@@ -402,6 +404,7 @@ u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle);
 
 int ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle);
 void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw);
+void ice_fill_eth_hdr(u8 *eth_hdr);
 
 int
 ice_aq_sw_rules(struct ice_hw *hw, void *rule_list, u16 rule_list_sz,

drivers/net/ethernet/intel/ice/ice_virtchnl.c

@@ -1724,6 +1724,8 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
 				vf->vf_id, i);
 	}
 
+	ice_lag_move_new_vf_nodes(vf);
+
 	/* send the response to the VF */
 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
 				     VIRTCHNL_STATUS_ERR_PARAM, NULL, 0);