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);
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.
00:08.0 Bridge: nVidia Corporation MCP55 Ethernet (rev a3)
Subsystem: nVidia Corporation Device cb84
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 219
Memory at fdff6000 (32-bit, non-prefetchable) [size=4K]
I/O ports at 9400 [size=8]
Memory at fdffa800 (32-bit, non-prefetchable) [size=256]
Memory at fdffa400 (32-bit, non-prefetchable) [size=16]
Capabilities: [44] Power Management version 2
Capabilities: [70] MSI-X: Enable- Mask- TabSize=8
Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/3 Enable+
Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: forcedeth
00:09.0 Bridge: nVidia Corporation MCP55 Ethernet (rev a3)
Subsystem: nVidia Corporation Device cb84
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20
Memory at fdff5000 (32-bit, non-prefetchable) [size=4K]
I/O ports at 9080 [size=8]
Memory at fdffa000 (32-bit, non-prefetchable) [size=256]
Memory at fdff4c00 (32-bit, non-prefetchable) [size=16]
Capabilities: [44] Power Management version 2
Capabilities: [70] MSI-X: Enable- Mask- TabSize=8
Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/3 Enable-
Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
Kernel driver in use: forcedeth
--
Simon Arlott
On Tue, 05 Aug 2008 20:29:44 +0100
Simon Arlott <[email protected]> wrote:
>
[two weeks pass...]
> 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.
Is it still broken in current kernels?
> 00:08.0 Bridge: nVidia Corporation MCP55 Ethernet (rev a3)
> Subsystem: nVidia Corporation Device cb84
> Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 219
> Memory at fdff6000 (32-bit, non-prefetchable) [size=4K]
> I/O ports at 9400 [size=8]
> Memory at fdffa800 (32-bit, non-prefetchable) [size=256]
> Memory at fdffa400 (32-bit, non-prefetchable) [size=16]
> Capabilities: [44] Power Management version 2
> Capabilities: [70] MSI-X: Enable- Mask- TabSize=8
> Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/3 Enable+
> Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
> Kernel driver in use: forcedeth
>
> 00:09.0 Bridge: nVidia Corporation MCP55 Ethernet (rev a3)
> Subsystem: nVidia Corporation Device cb84
> Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 20
> Memory at fdff5000 (32-bit, non-prefetchable) [size=4K]
> I/O ports at 9080 [size=8]
> Memory at fdffa000 (32-bit, non-prefetchable) [size=256]
> Memory at fdff4c00 (32-bit, non-prefetchable) [size=16]
> Capabilities: [44] Power Management version 2
> Capabilities: [70] MSI-X: Enable- Mask- TabSize=8
> Capabilities: [50] Message Signalled Interrupts: Mask+ 64bit+ Queue=0/3 Enable-
> Capabilities: [6c] HyperTransport: MSI Mapping Enable+ Fixed+
> Kernel driver in use: forcedeth
Thanks.
On Monday, 18 of August 2008, Andrew Morton wrote:
> On Tue, 05 Aug 2008 20:29:44 +0100
> Simon Arlott <[email protected]> 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
On 18/08/08 22:13, Rafael J. Wysocki wrote:
> On Monday, 18 of August 2008, Andrew Morton wrote:
>> On Tue, 05 Aug 2008 20:29:44 +0100
>> Simon Arlott <[email protected]> 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
With hibernation would it re-initialise the devices differently?
> resume from suspend to RAM. I'll do my best to try again tomorrow, but there's
> a little hope. :-(
Mine doesn't either, try standby?
>> > My NIC stops working after resuming from standby, it's not receiving any interrupts:
>> > 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.
>>
With this applied, I can resume from standby *without MSI* and the
NIC still works. I haven't tested it without MSI and without the
patch... mostly because I got a BUG when I tried to recompile.
>> > This results in interrupts being re-enabled after suspend:
>> > However, the NIC still doesn't work after resume.
>
> Simon, I'd prefer the full dmesg to the grepped forcedeth messages.
>
Attached. (The previous email has all the standby/resume log output.)
> I guess this was resume from suspend to RAM?
Standby - resume from RAM is completely broken for my system.
>> Is it still broken in current kernels?
>
> It probably is.
If I have MSI enabled, it still doesn't work.
--
Simon Arlott
On Mon, Aug 18, 2008 at 2:25 PM, Simon Arlott <[email protected]> wrote:
> On 18/08/08 22:13, Rafael J. Wysocki wrote:
>
>>> Is it still broken in current kernels?
>>
>> It probably is.
>
> If I have MSI enabled, it still doesn't work.
same problem with nv_shutdown about setting it to D3Hot?
YH
On Monday, 18 of August 2008, Simon Arlott wrote:
> On 18/08/08 22:13, Rafael J. Wysocki wrote:
> > On Monday, 18 of August 2008, Andrew Morton wrote:
> >> On Tue, 05 Aug 2008 20:29:44 +0100
> >> Simon Arlott <[email protected]> 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
>
> With hibernation would it re-initialise the devices differently?
Yes. Usually the BIOS does something to devices in that case.
> > resume from suspend to RAM. I'll do my best to try again tomorrow, but there's
> > a little hope. :-(
>
> Mine doesn't either, try standby?
OK, I will.
> >> > My NIC stops working after resuming from standby, it's not receiving any interrupts:
> >> > 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.
> >>
>
> With this applied, I can resume from standby *without MSI* and the
> NIC still works. I haven't tested it without MSI and without the
> patch... mostly because I got a BUG when I tried to recompile.
That's interesting. I'll try to reproduce it.
> >> > This results in interrupts being re-enabled after suspend:
> >> > However, the NIC still doesn't work after resume.
> >
> > Simon, I'd prefer the full dmesg to the grepped forcedeth messages.
> >
>
> Attached. (The previous email has all the standby/resume log output.)
>
> > I guess this was resume from suspend to RAM?
>
> Standby - resume from RAM is completely broken for my system.
>
> >> Is it still broken in current kernels?
> >
> > It probably is.
>
> If I have MSI enabled, it still doesn't work.
Hm. I wonder if that's specific to forcedeth or other drivers may be affected.
Thanks,
Rafael
On Monday, 18 of August 2008, Yinghai Lu wrote:
> On Mon, Aug 18, 2008 at 2:25 PM, Simon Arlott <[email protected]> wrote:
> > On 18/08/08 22:13, Rafael J. Wysocki wrote:
> >
> >>> Is it still broken in current kernels?
> >>
> >> It probably is.
> >
> > If I have MSI enabled, it still doesn't work.
>
> same problem with nv_shutdown about setting it to D3Hot?
Well, maybe. The only way to verify that would be to try with MSI
disabled. ;-)
Thanks,
Rafael
On 18/08/08 22:34, Yinghai Lu wrote:
> On Mon, Aug 18, 2008 at 2:25 PM, Simon Arlott <[email protected]> wrote:
>> On 18/08/08 22:13, Rafael J. Wysocki wrote:
>>
>>>> Is it still broken in current kernels?
>>>
>>> It probably is.
>>
>> If I have MSI enabled, it still doesn't work.
>
> same problem with nv_shutdown about setting it to D3Hot?
I'm not sure what you're asking here...?
--
Simon Arlott
On Monday, 18 of August 2008, Simon Arlott wrote:
> On 18/08/08 22:34, Yinghai Lu wrote:
> > On Mon, Aug 18, 2008 at 2:25 PM, Simon Arlott <[email protected]> wrote:
> >> On 18/08/08 22:13, Rafael J. Wysocki wrote:
> >>
> >>>> Is it still broken in current kernels?
> >>>
> >>> It probably is.
> >>
> >> If I have MSI enabled, it still doesn't work.
> >
> > same problem with nv_shutdown about setting it to D3Hot?
>
> I'm not sure what you're asking here...?
This was a question for me. :-)
On Monday, 18 of August 2008, Simon Arlott wrote:
> On 18/08/08 22:13, Rafael J. Wysocki wrote:
> > On Monday, 18 of August 2008, Andrew Morton wrote:
> >> On Tue, 05 Aug 2008 20:29:44 +0100
> >> Simon Arlott <[email protected]> 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
>
> With hibernation would it re-initialise the devices differently?
>
> > resume from suspend to RAM. I'll do my best to try again tomorrow, but there's
> > a little hope. :-(
>
> Mine doesn't either, try standby?
>
> >> > My NIC stops working after resuming from standby, it's not receiving any interrupts:
> >> > 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.
> >>
>
> With this applied, I can resume from standby *without MSI* and the
> NIC still works. I haven't tested it without MSI and without the
> patch... mostly because I got a BUG when I tried to recompile.
>
> >> > This results in interrupts being re-enabled after suspend:
> >> > However, the NIC still doesn't work after resume.
> >
> > Simon, I'd prefer the full dmesg to the grepped forcedeth messages.
> >
>
> Attached. (The previous email has all the standby/resume log output.)
>
> > I guess this was resume from suspend to RAM?
>
> Standby - resume from RAM is completely broken for my system.
>
> >> Is it still broken in current kernels?
> >
> > It probably is.
>
> If I have MSI enabled, it still doesn't work.
I cannot reproduce the problem locally, at least not with 2.6.27-rc4.
I was able to make my box resume from suspend to RAM by using
# s2ram --force --vbe_mode --vbe_post
(s2ram as shipped in openSUSE 11.0) and forcedeth works correctly
after the resume. However, I had to add 'acpi_sleep=old_ordering' to the
kernel command line.
My box is a desktop with an Asus A8N-SLI motherboard and an Athlon 64 X2 CPU.
I have created a Bugzilla entry for this issue at
http://bugzilla.kernel.org/show_bug.cgi?id=11390
Please put a boot log from dmesg and the output of 'lspci -vvv' in there, as
text attachments.
Thanks,
Rafael