netdev - [net-next v2 01/15] e1000e: Increase ULP timer

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Message-Id: <1456366502-132841-2-git-send-email-jeffrey.t.kirsher@intel.com>
Date:	Wed, 24 Feb 2016 18:14:48 -0800
From:	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:	davem@...emloft.net
Cc:	Raanan Avargil <raanan.avargil@...el.com>, netdev@...r.kernel.org,
	nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next v2 01/15] e1000e: Increase ULP timer

From: Raanan Avargil <raanan.avargil@...el.com>

Due to system level changes introduced in Skylake, ULP exit takes
significantly longer to occur.  Therefore, driver must wait longer for.

Signed-off-by: Raanan Avargil <raanan.avargil@...el.com>
Tested-by: Aaron Brown <aaron.f.brown@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/e1000e/ich8lan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index a049e30..c731465 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -1252,9 +1252,9 @@ static s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force)
 			ew32(H2ME, mac_reg);
 		}
 
-		/* Poll up to 100msec for ME to clear ULP_CFG_DONE */
+		/* Poll up to 300msec for ME to clear ULP_CFG_DONE. */
 		while (er32(FWSM) & E1000_FWSM_ULP_CFG_DONE) {
-			if (i++ == 10) {
+			if (i++ == 30) {
 				ret_val = -E1000_ERR_PHY;
 				goto out;
 			}
-- 
2.5.0