bnx2: Read PCI function number from internal register

so that it will work on any hypervisor.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/bnx2.h b/drivers/net/ethernet/broadcom/bnx2.h
index f9cb639..af6451d 100644
--- a/drivers/net/ethernet/broadcom/bnx2.h
+++ b/drivers/net/ethernet/broadcom/bnx2.h
@@ -6971,6 +6971,8 @@
 	struct bnx2_irq		irq_tbl[BNX2_MAX_MSIX_VEC];
 	int			irq_nvecs;
 
+	u8			func;
+
 	u8			num_tx_rings;
 	u8			num_rx_rings;