[dpdk-dev] [PATCH 09/16] e1000/base: increase LANPHYPC low duration

Wenzhuo Lu wenzhuo.lu at intel.com
Wed Nov 23 18:22:53 CET 2016


LANPHYPC low duration of 10 usec was too low for some
corner cases causing interface mismatches during Ultra
Low Power (ULP) exit. This patch increases the duration
to 1 msec which should be enough.

Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
---
 drivers/net/e1000/base/e1000_ich8lan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/e1000/base/e1000_ich8lan.c b/drivers/net/e1000/base/e1000_ich8lan.c
index 212526f..0ac982c 100644
--- a/drivers/net/e1000/base/e1000_ich8lan.c
+++ b/drivers/net/e1000/base/e1000_ich8lan.c
@@ -277,7 +277,7 @@ STATIC void e1000_toggle_lanphypc_pch_lpt(struct e1000_hw *hw)
 	mac_reg &= ~E1000_CTRL_LANPHYPC_VALUE;
 	E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
 	E1000_WRITE_FLUSH(hw);
-	usec_delay(10);
+	msec_delay(1);
 	mac_reg &= ~E1000_CTRL_LANPHYPC_OVERRIDE;
 	E1000_WRITE_REG(hw, E1000_CTRL, mac_reg);
 	E1000_WRITE_FLUSH(hw);
-- 
1.9.3



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