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Date: Sat, 1 Dec 2012 03:53:33 -0800 From: Jeff Kirsher <jeffrey.t.kirsher@...el.com> To: davem@...emloft.net Cc: Carolyn Wyborny <carolyn.wyborny@...el.com>, netdev@...r.kernel.org, gospo@...hat.com, sassmann@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com> Subject: [net-next 5/9] igb: Workaround for global device reset problem on 82580. From: Carolyn Wyborny <carolyn.wyborny@...el.com> 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 <carolyn.wyborny@...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/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); -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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