From: Hayes Wang <hayeswang@realtek.com>
To: <romieu@fr.zoreil.com>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
Hayes Wang <hayeswang@realtek.com>
Subject: [PATCH] r8169: increase the delay parameter of pm_schedule_suspend
Date: Tue, 8 Nov 2011 14:44:37 +0800 [thread overview]
Message-ID: <1320734677-1372-1-git-send-email-hayeswang@realtek.com> (raw)
The link down would occur when reseting PHY. And it would take about 2 ~ 5 seconds
from link down to link up. If the delay of pm_schedule_suspend is not long enough,
the device would enter runtime_suspend before link up. After link up, the device
would wake up and reset PHY again. Then, you would find the driver keep in a loop
of runtime_suspend and rumtime_resume.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
---
drivers/net/ethernet/realtek/r8169.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 92b45f0..6f06aa1 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -1292,7 +1292,7 @@ static void __rtl8169_check_link_status(struct net_device *dev,
netif_carrier_off(dev);
netif_info(tp, ifdown, dev, "link down\n");
if (pm)
- pm_schedule_suspend(&tp->pci_dev->dev, 100);
+ pm_schedule_suspend(&tp->pci_dev->dev, 5000);
}
spin_unlock_irqrestore(&tp->lock, flags);
}
--
1.7.6.2
next reply other threads:[~2011-11-08 6:44 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-08 6:44 Hayes Wang [this message]
2011-11-08 9:07 ` [PATCH] r8169: increase the delay parameter of pm_schedule_suspend Francois Romieu
2011-11-08 17:37 ` David Miller
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