linux-kernel - [PATCH] net: forcedeth use pci_choose_state instead of PCI_D3hot

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Message-Id: <1218954333-12819-1-git-send-email-yhlu.kernel@gmail.com>
Date:	Sat, 16 Aug 2008 23:25:33 -0700
From:	Yinghai Lu <yhlu.kernel@...il.com>
To:	Jeff Garzik <jgarzik@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, netdev <netdev@...r.kernel.org>,
	Yinghai Lu <yhlu.kernel@...il.com>
Subject: [PATCH] net: forcedeth use pci_choose_state instead of PCI_D3hot - v2

after

| commit f735a2a1a4f2a0f5cd823ce323e82675990469e2
| Author: Tobias Diedrich <ranma+kernel@...edrich.de>
| Date:   Sun May 18 15:02:37 2008 +0200
|
|    [netdrvr] forcedeth: setup wake-on-lan before shutting down
|
|    When hibernating in 'shutdown' mode, after saving the image the suspend hook
|    is not called again.
|    However, if the device is in promiscous mode, wake-on-lan will not work.
|    This adds a shutdown hook to setup wake-on-lan before the final shutdown.
|
|    Signed-off-by: Tobias Diedrich <ranma+kernel@...edrich.de>
|    Signed-off-by: Jeff Garzik <jgarzik@...hat.com>

my servers with nvidia mcp55 nic doesn't work with msi in second kernel by kexec

after remove pci_set_power_state(, PCI_D3hot) that nic/msi will work again.

check with e1000 is using pci_choose_state in _shutdown.

So change that pci_choose_state(pdev, ...), and it works.

Signed-off-by: Yinghai Lu <yhlu.kernel@...il.com>

---
 drivers/net/forcedeth.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6/drivers/net/forcedeth.c
===================================================================
--- linux-2.6.orig/drivers/net/forcedeth.c
+++ linux-2.6/drivers/net/forcedeth.c
@@ -5988,7 +5988,7 @@ static void nv_shutdown(struct pci_dev *
 	pci_enable_wake(pdev, PCI_D3hot, np->wolenabled);
 	pci_enable_wake(pdev, PCI_D3cold, np->wolenabled);
 	pci_disable_device(pdev);
-	pci_set_power_state(pdev, PCI_D3hot);
+	pci_set_power_state(pdev, pci_choose_state(pdev, PMSG_SUSPEND));
 }
 #else
 #define nv_suspend NULL
--
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