qlcnic: fix mac learning

In failover bonding case, same mac address can be programmed on other slave function.
Fw will delete old entry (original func) associated with that mac address.
Need to reporgram mac address, if failover again happen to original function.
Signed-off-by: NAmit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/qlcnic/qlcnic.h

@@ -942,6 +942,7 @@ struct qlcnic_ipaddr {
 #define QLCNIC_LOOPBACK_TEST		2
 
 #define QLCNIC_FILTER_AGE	80
+#define QLCNIC_READD_AGE	20
 #define QLCNIC_LB_MAX_FILTERS	64
 
 struct qlcnic_filter {

drivers/net/qlcnic/qlcnic_main.c

@@ -1860,6 +1860,11 @@ qlcnic_send_filter(struct qlcnic_adapter *adapter,
 	hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
 		if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
 			    tmp_fil->vlan_id == vlan_id) {
+
+			if (jiffies >
+			    (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
+				qlcnic_change_filter(adapter, src_addr, vlan_id,
+								tx_ring);
 			tmp_fil->ftime = jiffies;
 			return;
 		}