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Message-Id: <200808182313.10235.rjw@sisk.pl>
Date: Mon, 18 Aug 2008 23:13:09 +0200
From: "Rafael J. Wysocki" <rjw@...k.pl>
To: Andrew Morton <akpm@...ux-foundation.org>,
Simon Arlott <simon@...e.lp0.eu>
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
linux-pm@...ts.linux-foundation.org, ranma+kernel@...edrich.de,
jgarzik@...hat.com
Subject: Re: forcedeth 10de:0373 doesn't work on resume
On Monday, 18 of August 2008, Andrew Morton wrote:
> On Tue, 05 Aug 2008 20:29:44 +0100
> Simon Arlott <simon@...e.lp0.eu> wrote:
> >
>
> [two weeks pass...]
[Must have missed this message.]
I have a box with forcedeth that evidently works after a resume from
hibernation. Unfortunately, so far I haven't been able to make the box
resume from suspend to RAM. I'll do my best to try again tomorrow, but there's
a little hope. :-(
> > My NIC stops working after resuming from standby, it's not receiving any interrupts:
> > [ 0.618266] pci 0000:00:08.0: supports D1
> > [ 0.618267] pci 0000:00:08.0: supports D2
> > [ 0.618269] pci 0000:00:08.0: PME# supported from D0 D1 D2 D3hot D3cold
> > [ 0.618382] pci 0000:00:08.0: PME# disabled
> > [ 0.618513] pci 0000:00:09.0: supports D1
> > [ 0.618523] pci 0000:00:09.0: supports D2
> > [ 0.618532] pci 0000:00:09.0: PME# supported from D0 D1 D2 D3hot D3cold
> > [ 0.618632] pci 0000:00:09.0: PME# disabled
> > [ 0.629767] PM: Adding info for pci:0000:00:08.0
> > [ 0.630304] PM: Adding info for pci:0000:00:09.0
> > [ 0.866667] pci 0000:00:08.0: Enabling HT MSI Mapping
> > [ 0.866804] pci 0000:00:09.0: Enabling HT MSI Mapping
> > [ 1.847264] forcedeth: Reverse Engineered nForce ethernet driver. Version 0.61.
> > [ 1.847918] forcedeth 0000:00:08.0: PCI INT A -> Link[LMAC] -> GSI 21 (level, low) -> IRQ 21
> > [ 1.848121] forcedeth 0000:00:08.0: setting latency timer to 64
> > [ 1.849363] forcedeth 0000:00:08.0: ifname eth2, PHY OUI 0x5043 @ 16, addr 00:e0:81:4d:2b:ec
> > [ 1.849553] forcedeth 0000:00:08.0: highdma csum vlan pwrctl mgmt timirq gbit lnktim msi desc-v3
> > [ 1.850212] forcedeth 0000:00:09.0: PCI INT A -> Link[LMAD] -> GSI 20 (level, low) -> IRQ 20
> > [ 1.850405] forcedeth 0000:00:09.0: setting latency timer to 64
> > [ 1.851684] forcedeth 0000:00:09.0: ifname eth3, PHY OUI 0x5043 @ 17, addr 00:e0:81:4d:2b:ed
> > [ 1.851873] forcedeth 0000:00:09.0: highdma csum vlan pwrctl mgmt timirq gbit lnktim msi desc-v3
> > [ 913.928604] forcedeth 0000:00:08.0: preparing suspend, may wakeup
> > [ 913.928607] forcedeth 0000:00:09.0: preparing suspend, may wakeup
> > [ 916.388326] forcedeth 0000:00:09.0: suspend, may wakeup
> > [ 916.388704] forcedeth 0000:00:09.0: PME# enabled
> > [ 916.388711] forcedeth 0000:00:09.0: wake-up capability enabled by ACPI
> > [ 916.388714] forcedeth 0000:00:09.0: PCI INT A disabled
> > [ 916.398995] forcedeth 0000:00:08.0: suspend, may wakeup
> > [ 916.399741] forcedeth 0000:00:08.0: PME# enabled
> > [ 916.399767] forcedeth 0000:00:08.0: wake-up capability enabled by ACPI
> > [ 916.399786] forcedeth 0000:00:08.0: PCI INT A disabled
> > [ 917.255261] forcedeth 0000:00:09.0: LATE suspend, may wakeup
> > [ 917.255263] forcedeth 0000:00:08.0: LATE suspend, may wakeup
> > [ 917.256004] forcedeth 0000:00:08.0: EARLY resume
> > [ 917.256004] forcedeth 0000:00:09.0: EARLY resume
> > [ 918.015874] forcedeth 0000:00:08.0: resume
> > [ 918.026369] forcedeth 0000:00:08.0: restoring config space at offset 0xf (was 0x14010100, writing 0x1401010a)
> > [ 918.026395] forcedeth 0000:00:08.0: restoring config space at offset 0x7 (was 0x0, writing 0xfdffa400)
> > [ 918.026417] forcedeth 0000:00:08.0: restoring config space at offset 0x6 (was 0x0, writing 0xfdffa800)
> > [ 918.026428] forcedeth 0000:00:08.0: restoring config space at offset 0x5 (was 0x1, writing 0x9401)
> > [ 918.026436] forcedeth 0000:00:08.0: restoring config space at offset 0x4 (was 0x0, writing 0xfdff6000)
> > [ 918.026443] forcedeth 0000:00:08.0: restoring config space at offset 0x1 (was 0xb00000, writing 0xb00007)
> > [ 918.026465] forcedeth 0000:00:08.0: wake-up capability disabled by ACPI
> > [ 918.026471] forcedeth 0000:00:08.0: PME# disabled
> > [ 918.027446] forcedeth 0000:00:09.0: resume
> > [ 918.037096] forcedeth 0000:00:09.0: restoring config space at offset 0xf (was 0x14010100, writing 0x1401010b)
> > [ 918.037115] forcedeth 0000:00:09.0: restoring config space at offset 0x7 (was 0x0, writing 0xfdff4c00)
> > [ 918.037120] forcedeth 0000:00:09.0: restoring config space at offset 0x6 (was 0x0, writing 0xfdffa000)
> > [ 918.037125] forcedeth 0000:00:09.0: restoring config space at offset 0x5 (was 0x1, writing 0x9081)
> > [ 918.037131] forcedeth 0000:00:09.0: restoring config space at offset 0x4 (was 0x0, writing 0xfdff5000)
> > [ 918.037137] forcedeth 0000:00:09.0: restoring config space at offset 0x1 (was 0xb00000, writing 0xb00007)
> > [ 918.037160] forcedeth 0000:00:09.0: wake-up capability disabled by ACPI
> > [ 918.037174] forcedeth 0000:00:09.0: PME# disabled
> > [ 925.810837] forcedeth 0000:00:09.0: completing resume
> > [ 925.810841] forcedeth 0000:00:08.0: completing resume
> >
> > Commit 25d90810ff49d2a63475776f24c74c6bb49b045f ([netdrvr] forcedeth: reorder suspend/resume code)
> > introduces pci_disable_device to nv_suspend, but there's no corresponding pci_enable_device in
> > nv_resume - so I added one (copied from e1000):
> >
> > diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c
> > index 01b38b0..db4f875 100644
> > --- a/drivers/net/forcedeth.c
> > +++ b/drivers/net/forcedeth.c
> > @@ -5922,6 +5922,13 @@ static int nv_resume(struct pci_dev *pdev)
> >
> > pci_set_power_state(pdev, PCI_D0);
> > pci_restore_state(pdev);
> > + rc = pci_enable_device(pdev);
> > + if (rc) {
> > + printk(KERN_ERR "forcedeth: Cannot enable PCI device from suspend\n");
> > + return rc;
> > + }
> > + pci_set_master(pdev);
> > +
> > /* ack any pending wake events, disable PME */
> > pci_enable_wake(pdev, PCI_D0, 0);
> >
>
> That seems like a sensible change.
>
> > This results in interrupts being re-enabled after suspend:
> > [ 0.619558] pci 0000:00:08.0: supports D1
> > [ 0.619560] pci 0000:00:08.0: supports D2
> > [ 0.619561] pci 0000:00:08.0: PME# supported from D0 D1 D2 D3hot D3cold
> > [ 0.619684] pci 0000:00:08.0: PME# disabled
> > [ 0.619826] pci 0000:00:09.0: supports D1
> > [ 0.619828] pci 0000:00:09.0: supports D2
> > [ 0.619837] pci 0000:00:09.0: PME# supported from D0 D1 D2 D3hot D3cold
> > [ 0.619952] pci 0000:00:09.0: PME# disabled
> > [ 0.631145] PM: Adding info for pci:0000:00:08.0
> > [ 0.631699] PM: Adding info for pci:0000:00:09.0
> > [ 0.870662] pci 0000:00:08.0: Enabling HT MSI Mapping
> > [ 0.870809] pci 0000:00:09.0: Enabling HT MSI Mapping
> > [ 1.853343] forcedeth: Reverse Engineered nForce ethernet driver. Version 0.61.
> > [ 1.854016] forcedeth 0000:00:08.0: PCI INT A -> Link[LMAC] -> GSI 21 (level, low) -> IRQ 21
> > [ 1.854217] forcedeth 0000:00:08.0: setting latency timer to 64
> > [ 1.855468] forcedeth 0000:00:08.0: ifname eth2, PHY OUI 0x5043 @ 16, addr 00:e0:81:4d:2b:ec
> > [ 1.855658] forcedeth 0000:00:08.0: highdma csum vlan pwrctl mgmt timirq gbit lnktim msi desc-v3
> > [ 1.856332] forcedeth 0000:00:09.0: PCI INT A -> Link[LMAD] -> GSI 20 (level, low) -> IRQ 20
> > [ 1.856528] forcedeth 0000:00:09.0: setting latency timer to 64
> > [ 1.857815] forcedeth 0000:00:09.0: ifname eth3, PHY OUI 0x5043 @ 17, addr 00:e0:81:4d:2b:ed
> > [ 1.858015] forcedeth 0000:00:09.0: highdma csum vlan pwrctl mgmt timirq gbit lnktim msi desc-v3
> > [ 42.310803] forcedeth 0000:00:08.0: preparing suspend, may wakeup
> > [ 42.310807] forcedeth 0000:00:09.0: preparing suspend, may wakeup
> > [ 44.468801] forcedeth 0000:00:09.0: suspend, may wakeup
> > [ 44.469181] forcedeth 0000:00:09.0: PME# enabled
> > [ 44.469191] forcedeth 0000:00:09.0: wake-up capability enabled by ACPI
> > [ 44.469196] forcedeth 0000:00:09.0: PCI INT A disabled
> > [ 44.479247] forcedeth 0000:00:08.0: suspend, may wakeup
> > [ 44.479981] forcedeth 0000:00:08.0: PME# enabled
> > [ 44.480014] forcedeth 0000:00:08.0: wake-up capability enabled by ACPI
> > [ 44.480025] forcedeth 0000:00:08.0: PCI INT A disabled
> > [ 45.311781] forcedeth 0000:00:09.0: LATE suspend, may wakeup
> > [ 45.311784] forcedeth 0000:00:08.0: LATE suspend, may wakeup
> > [ 45.312005] forcedeth 0000:00:08.0: EARLY resume
> > [ 45.312005] forcedeth 0000:00:09.0: EARLY resume
> > [ 46.067593] forcedeth 0000:00:08.0: resume
> > [ 46.077904] forcedeth 0000:00:08.0: restoring config space at offset 0xf (was 0x14010100, writing 0x1401010a)
> > [ 46.077931] forcedeth 0000:00:08.0: restoring config space at offset 0x7 (was 0x0, writing 0xfdffa400)
> > [ 46.077949] forcedeth 0000:00:08.0: restoring config space at offset 0x6 (was 0x0, writing 0xfdffa800)
> > [ 46.077962] forcedeth 0000:00:08.0: restoring config space at offset 0x5 (was 0x1, writing 0x9401)
> > [ 46.077973] forcedeth 0000:00:08.0: restoring config space at offset 0x4 (was 0x0, writing 0xfdff6000)
> > [ 46.077987] forcedeth 0000:00:08.0: restoring config space at offset 0x1 (was 0xb00000, writing 0xb00007)
> > [ 46.078026] forcedeth 0000:00:08.0: PCI INT A -> Link[LMAC] -> GSI 21 (level, low) -> IRQ 21
> > [ 46.078031] forcedeth 0000:00:08.0: setting latency timer to 64
> > [ 46.078042] forcedeth 0000:00:08.0: wake-up capability disabled by ACPI
> > [ 46.078056] forcedeth 0000:00:08.0: PME# disabled
> > [ 46.079323] forcedeth 0000:00:09.0: resume
> > [ 46.089903] forcedeth 0000:00:09.0: restoring config space at offset 0xf (was 0x14010100, writing 0x1401010b)
> > [ 46.089930] forcedeth 0000:00:09.0: restoring config space at offset 0x7 (was 0x0, writing 0xfdff4c00)
> > [ 46.089952] forcedeth 0000:00:09.0: restoring config space at offset 0x6 (was 0x0, writing 0xfdffa000)
> > [ 46.089959] forcedeth 0000:00:09.0: restoring config space at offset 0x5 (was 0x1, writing 0x9081)
> > [ 46.089964] forcedeth 0000:00:09.0: restoring config space at offset 0x4 (was 0x0, writing 0xfdff5000)
> > [ 46.089970] forcedeth 0000:00:09.0: restoring config space at offset 0x1 (was 0xb00000, writing 0xb00007)
> > [ 46.089998] forcedeth 0000:00:09.0: PCI INT A -> Link[LMAD] -> GSI 20 (level, low) -> IRQ 20
> > [ 46.090003] forcedeth 0000:00:09.0: setting latency timer to 64
> > [ 46.090007] forcedeth 0000:00:09.0: wake-up capability disabled by ACPI
> > [ 46.090013] forcedeth 0000:00:09.0: PME# disabled
> > [ 52.903755] forcedeth 0000:00:09.0: completing resume
> > [ 52.903759] forcedeth 0000:00:08.0: completing resume
> >
> > However, the NIC still doesn't work after resume.
Simon, I'd prefer the full dmesg to the grepped forcedeth messages.
I guess this was resume from suspend to RAM?
> Is it still broken in current kernels?
It probably is.
Thanks,
Rafael
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