qede: add netpoll support for qede driver

handle netpoll case when qede_poll is called by
netpoll layer with budget 0
Signed-off-by: NBhaskar Upadhaya <bupadhaya@marvell.com>
Signed-off-by: NIgor Russkikh <irusskikh@marvell.com>
Signed-off-by: NAriel Elior <aelior@marvell.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/qlogic/qede/qede_fp.c

@@ -1450,7 +1450,8 @@ int qede_poll(struct napi_struct *napi, int budget)
 	rx_work_done = (likely(fp->type & QEDE_FASTPATH_RX) &&
 			qede_has_rx_work(fp->rxq)) ?
 			qede_rx_int(fp, budget) : 0;
-	if (rx_work_done < budget) {
+	/* Handle case where we are called by netpoll with a budget of 0 */
+	if (rx_work_done < budget || !budget) {
 		if (!qede_poll_is_more_work(fp)) {
 			napi_complete_done(napi, rx_work_done);