sfc: Decouple NIC revision number from Falcon PCI revision number

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/selftest.c b/drivers/net/sfc/selftest.c
index 1580607..74e84af 100644
--- a/drivers/net/sfc/selftest.c
+++ b/drivers/net/sfc/selftest.c
@@ -125,7 +125,7 @@
 	int rc;
 
 	/* Not supported on A-series silicon */
-	if (falcon_rev(efx) < FALCON_REV_B0)
+	if (efx_nic_rev(efx) < EFX_REV_FALCON_B0)
 		return 0;
 
 	rc = falcon_test_registers(efx);