From: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Date: Thu, 8 Jun 2017 10:52:11 +0530
Subject: cxgb4: fix to bring link down after adapter crash
Patch-mainline: v4.13-rc1
Git-commit: b3fd82207e2723247aac478e8756451fe85b1ac2
References: bsc#1046540

Use PORT_REG for T4 and T5_PORT_REG for > T4 to write to correct
register to bring down link during shutdown after adapter crash.

Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.c |    7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -7688,10 +7688,9 @@ int t4_shutdown_adapter(struct adapter *
 	t4_intr_disable(adapter);
 	t4_write_reg(adapter, DBG_GPIO_EN_A, 0);
 	for_each_port(adapter, port) {
-		u32 a_port_cfg = PORT_REG(port,
-					  is_t4(adapter->params.chip)
-					  ? XGMAC_PORT_CFG_A
-					  : MAC_PORT_CFG_A);
+		u32 a_port_cfg = is_t4(adapter->params.chip) ?
+				       PORT_REG(port, XGMAC_PORT_CFG_A) :
+				       T5_PORT_REG(port, MAC_PORT_CFG_A);
 
 		t4_write_reg(adapter, a_port_cfg,
 			     t4_read_reg(adapter, a_port_cfg)