From a0483e2eb63d3b2f14a821edb21b3e610bfba5bd Mon Sep 17 00:00:00 2001 From: Carolyn Wyborny Date: Thu, 22 Nov 2012 01:24:08 +0000 Subject: [PATCH] igb: Workaround for global device reset problem on 82580. Due to a hw errata, the global device reset doesn't always work on 82580 devices. This patch works around the problem not trying to do a global device reset on these devices. Signed-off-by: Carolyn Wyborny Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/e1000_82575.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index 8c12dbd..db40b68 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -1927,6 +1927,12 @@ static s32 igb_reset_hw_82580(struct e1000_hw *hw) hw->dev_spec._82575.global_device_reset = false; + /* due to hw errata, global device reset doesn't always + * work on 82580 + */ + if (hw->mac.type == e1000_82580) + global_device_reset = false; + /* Get current control state. */ ctrl = rd32(E1000_CTRL); -- 2.7.4