| Message ID | 2699206.HmPyNvCpNR@vostro.rjw.lan (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
Hi,
I applied this patches over 3.8.3 hoping it will fix my issue under
thread: "Re: 3.8.2: xhci port is dead until pcieport PME# goes to disabled"
but unfortunately, it is even worse! Now, although lsusb -v nor lsusb -vv do
wakeup the XHCI port but it falls asleep immediately, more quickly than I am
able to plug a device into the socket. To get a device working in the USB3 socket
I need to plug it in, run lsusb -vv and then it is recognized.
Without the patch, the 'lsusb -vv' woke up the port (PME# disabled happened
on both 1c.4 and 0b:00.0) and I had unlimited time to find some USB device
around and to plug it into the slot.
I noticed this message some while after a bootup (no external USB devices were
connected to the laptop, neither into USB2 socket nor into USB3.0 sockets) before
I started to do the tests:
[ 36.594171] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling.
[ 36.594202] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001
[ 36.594247] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0
[ 36.594349] xhci_hcd 0000:0b:00.0: PME# enabled
[ 36.703695] r8169 0000:05:00.0 eth0: link down
[ 37.098299] microcode: CPU0 updated to revision 0x28, date = 2012-04-24
[ 37.098941] microcode: CPU1 updated to revision 0x28, date = 2012-04-24
[ 37.098944] perf_event_intel: PEBS enabled due to microcode update
[ 38.343029] r8169 0000:05:00.0 eth0: link up
[ 39.094944] r8169 0000:05:00.0 eth0: link down
[ 41.492768] r8169 0000:05:00.0 eth0: link up
[ 62.782910] xhci_hcd 0000:0b:00.0: Poll event ring: 4294943584
[ 62.782938] xhci_hcd 0000:0b:00.0: op reg status = 0xffffffff
[ 62.782939] xhci_hcd 0000:0b:00.0: HW died, polling stopped.
[ 88.754183] pcieport 0000:00:1c.0: PME# enabled
[ 88.764182] xhci_hcd 0000:0b:00.0: PME# disabled
[ 88.764192] xhci_hcd 0000:0b:00.0: enabling bus mastering
[ 88.764206] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001
[ 88.764242] xhci_hcd 0000:0b:00.0: Port Status Change Event for port 2
[ 88.764246] xhci_hcd 0000:0b:00.0: resume root hub
[ 88.764259] xhci_hcd 0000:0b:00.0: handle_port_status: starting port polling.
[ 88.764276] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling.
[ 88.764281] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0
What "HW died? Why 1c.0 is here? What is this device actually doing?
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=03, subordinate=04, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: fff00000-000fffff
Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <1us, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot #0, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
Changed: MRL- PresDet- LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: Dell Device 04b3
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D3 NoSoftRst- PME-Enable+ DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
Nevertheless, I went to check if if the USB3 socket dies after first unplug of device
or not anymore thanks to the patch being tested:
I plugged into the USB3.0 socket a mouse, it worked. Around its unplug I got:
[ 94.954779] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100
[ 94.954795] hub 3-0:1.0: hub_suspend
[ 94.954802] usb usb3: bus auto-suspend, wakeup 1
[ 94.954817] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling.
[ 94.954835] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling.
[ 94.954857] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001
[ 94.954898] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0
[ 94.954983] xhci_hcd 0000:0b:00.0: PME# enabled
[ 169.622513] hub 2-1:1.0: state 7 ports 8 chg 0000 evt 0004
[ 169.623057] hub 2-1:1.0: port 2, status 0101, change 0001, 12 Mb/s
[ 169.777012] hub 2-1:1.0: debounce: port 2: total 100ms stable 100ms status 0x101
[ 169.856992] usb 2-1.2: new low-speed USB device number 4 using ehci-pci
and the port was dead, no matter what "lsusb -v or -vv" options I tried. At about
[ 169.622513] I plugged the mouse into a USB2.0 socket (do not know if that is 1a.0 or 1d.0).
# lspci -tv
-[0000:00]-+-00.0 Intel Corporation 2nd Generation Core Processor Family DRAM Controller
+-02.0 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
+-16.0 Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1
+-1a.0 Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
+-1b.0 Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller
+-1c.0-[03-04]--
+-1c.1-[05-06]----00.0 Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller
+-1c.3-[09-0a]----00.0 Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak]
+-1c.4-[0b-0c]----00.0 Texas Instruments TUSB73x0 SuperSpeed USB 3.0 xHCI Host Controller
+-1c.7-[11-16]----00.0 Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller
+-1d.0 Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
+-1f.0 Intel Corporation HM67 Express Chipset Family LPC Controller
+-1f.2 Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
\-1f.3 Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller
#
Why isn't the PME# enabled/disabled reported for the USB2.0 port of the
same laptop? There I can plugin a device many times in and out and not a single PME# line is
spitted by dmesg.
# grep . /sys/bus/pci/devices/*/power/control
/sys/bus/pci/devices/0000:00:00.0/power/control:auto
/sys/bus/pci/devices/0000:00:02.0/power/control:auto
/sys/bus/pci/devices/0000:00:16.0/power/control:auto
/sys/bus/pci/devices/0000:00:1a.0/power/control:auto
/sys/bus/pci/devices/0000:00:1b.0/power/control:auto
/sys/bus/pci/devices/0000:00:1c.0/power/control:auto
/sys/bus/pci/devices/0000:00:1c.1/power/control:auto
/sys/bus/pci/devices/0000:00:1c.3/power/control:auto
/sys/bus/pci/devices/0000:00:1c.4/power/control:auto
/sys/bus/pci/devices/0000:00:1c.7/power/control:auto
/sys/bus/pci/devices/0000:00:1d.0/power/control:auto
/sys/bus/pci/devices/0000:00:1f.0/power/control:auto
/sys/bus/pci/devices/0000:00:1f.2/power/control:auto
/sys/bus/pci/devices/0000:00:1f.3/power/control:auto
/sys/bus/pci/devices/0000:05:00.0/power/control:auto
/sys/bus/pci/devices/0000:09:00.0/power/control:auto
/sys/bus/pci/devices/0000:0b:00.0/power/control:auto
/sys/bus/pci/devices/0000:11:00.0/power/control:auto
# grep . /sys/bus/pci/devices/*/power/runtime_status
/sys/bus/pci/devices/0000:00:00.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:02.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:16.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1a.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1b.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1c.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1c.1/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1c.3/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1c.4/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1c.7/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1d.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_status:suspended
/sys/bus/pci/devices/0000:05:00.0/power/runtime_status:active
/sys/bus/pci/devices/0000:09:00.0/power/runtime_status:active
/sys/bus/pci/devices/0000:0b:00.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:11:00.0/power/runtime_status:active
#
If I run lsusb -vv it does (with the problematic patch):
[ 1760.414086] pcieport 0000:00:1c.4: PME# disabled
[ 1760.434314] xhci_hcd 0000:0b:00.0: PME# disabled
[ 1760.434327] xhci_hcd 0000:0b:00.0: enabling bus mastering
[ 1760.434338] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001
[ 1760.434360] xhci_hcd 0000:0b:00.0: Port Status Change Event for port 2
[ 1760.434363] xhci_hcd 0000:0b:00.0: resume root hub
[ 1760.434367] xhci_hcd 0000:0b:00.0: handle_port_status: starting port polling.
[ 1760.434378] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling.
[ 1760.434383] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0
[ 1760.434388] usb usb3: usb auto-resume
[ 1760.434407] hub 3-0:1.0: hub_resume
[ 1760.434439] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0
[ 1760.434440] xhci_hcd 0000:0b:00.0: Get port status returned 0x100
[ 1760.434464] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x202a0
[ 1760.434465] xhci_hcd 0000:0b:00.0: Get port status returned 0x10100
[ 1760.434492] xhci_hcd 0000:0b:00.0: clear port connect change, actual port 1 status = 0x2a0
[ 1760.434642] usb usb4: usb wakeup-resume
[ 1760.434646] usb usb4: usb auto-resume
[ 1760.434661] hub 4-0:1.0: hub_resume
[ 1760.434683] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0
[ 1760.434684] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0
[ 1760.434710] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0
[ 1760.434711] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0
[ 1760.434727] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000
[ 1760.434757] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 0 status = 0xe0002a0
[ 1760.434784] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 1 status = 0xe0002a0
[ 1760.434791] hub 4-0:1.0: hub_suspend
[ 1760.434796] usb usb4: bus auto-suspend, wakeup 1
[ 1760.434807] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling.
[ 1760.553734] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling.
[ 1760.553751] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000
[ 1760.574793] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0
[ 1760.574794] xhci_hcd 0000:0b:00.0: Get port status returned 0x100
[ 1760.575300] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0
[ 1760.575301] xhci_hcd 0000:0b:00.0: Get port status returned 0x100
[ 1760.576768] hub 3-0:1.0: hub_suspend
[ 1760.576774] usb usb3: bus auto-suspend, wakeup 1
[ 1760.576789] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling.
[ 1760.576802] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling.
[ 1760.576817] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001
[ 1760.576851] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0
[ 1760.576938] xhci_hcd 0000:0b:00.0: PME# enabled
[ 1760.613874] xhci_hcd 0000:0b:00.0: PME# disabled
[ 1760.613884] xhci_hcd 0000:0b:00.0: enabling bus mastering
[ 1760.613895] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001
[ 1760.613914] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling.
[ 1760.613922] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling.
[ 1760.613924] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0
[ 1760.613929] usb usb4: usb auto-resume
[ 1760.613945] hub 4-0:1.0: hub_resume
[ 1760.613981] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0
[ 1760.613982] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0
[ 1760.614010] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0
[ 1760.614012] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0
[ 1760.614038] usb usb3: usb wakeup-resume
[ 1760.614040] usb usb3: usb auto-resume
[ 1760.614059] hub 3-0:1.0: hub_resume
[ 1760.614080] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0
[ 1760.614081] xhci_hcd 0000:0b:00.0: Get port status returned 0x100
[ 1760.614104] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0
[ 1760.614105] xhci_hcd 0000:0b:00.0: Get port status returned 0x100
[ 1760.614122] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000
[ 1760.614126] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000
[ 1760.614134] hub 3-0:1.0: hub_suspend
[ 1760.614139] usb usb3: bus auto-suspend, wakeup 1
[ 1760.614152] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling.
[ 1760.623621] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling.
[ 1760.646744] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0
[ 1760.646746] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0
[ 1760.647281] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0
[ 1760.647283] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0
[ 1760.657965] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 0 status = 0xe0002a0
[ 1760.657992] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 1 status = 0xe0002a0
[ 1760.658000] hub 4-0:1.0: hub_suspend
[ 1760.658004] usb usb4: bus auto-suspend, wakeup 1
[ 1760.658015] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling.
[ 1760.658027] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling.
[ 1760.658042] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001
[ 1760.658074] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0
[ 1760.658159] xhci_hcd 0000:0b:00.0: PME# enabled
[ 1760.683743] pcieport 0000:00:1c.4: PME# enabled
Hope this helps,
Martin
Rafael J. Wysocki wrote:
> From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Subject: PCI / ACPI: Always resume devices on ACPI wakeup notifications
>
> It turns out that the _Lxx control methods provided by some BIOSes
> clear the PME Status bit of PCI devices they handle, which means that
> pci_acpi_wake_dev() cannot really use that bit to check whether or
> not the device has signalled wakeup.
>
> One symptom of the problem is, for example, that when an affected PCI
> USB controller is runtime-suspended, then plugging in a new USB device
> into one of the controller's ports will not wake up the controller,
> which should happen.
>
> For this reason, make pci_acpi_wake_dev() always attempt to resume
> the device it is called for regardless of the device's PME Status bit
> value (that bit still has to be cleared if set at this point,
> though).
>
> Reported-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Acked-by: Matthew Garrett <mjg59@srcf.ucam.org>
> Cc: 3.7+ <stable@vger.kernel.org>
> ---
>
> The changelog in this version is slightly better than in the previous one, IMHO.
>
> Thanks,
> Rafael
>
> ---
> drivers/pci/pci-acpi.c | 15 ++++++++-------
> 1 file changed, 8 insertions(+), 7 deletions(-)
>
> Index: linux-pm/drivers/pci/pci-acpi.c
> ===================================================================
> --- linux-pm.orig/drivers/pci/pci-acpi.c
> +++ linux-pm/drivers/pci/pci-acpi.c
> @@ -53,14 +53,15 @@ static void pci_acpi_wake_dev(acpi_handl
> return;
> }
>
> - if (!pci_dev->pm_cap || !pci_dev->pme_support
> - || pci_check_pme_status(pci_dev)) {
> - if (pci_dev->pme_poll)
> - pci_dev->pme_poll = false;
> + /* Clear PME Status if set. */
> + if (pci_dev->pme_support)
> + pci_check_pme_status(pci_dev);
>
> - pci_wakeup_event(pci_dev);
> - pm_runtime_resume(&pci_dev->dev);
> - }
> + if (pci_dev->pme_poll)
> + pci_dev->pme_poll = false;
> +
> + pci_wakeup_event(pci_dev);
> + pm_runtime_resume(&pci_dev->dev);
>
> if (pci_dev->subordinate)
> pci_pme_wakeup_bus(pci_dev->subordinate);
>
> --
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>
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On Fri, Mar 29, 2013 at 04:05:54PM +0100, Martin Mokrejs wrote: > [ 36.594171] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling. > [ 36.594202] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > [ 36.594247] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 > [ 36.594349] xhci_hcd 0000:0b:00.0: PME# enabled > [ 36.703695] r8169 0000:05:00.0 eth0: link down > [ 37.098299] microcode: CPU0 updated to revision 0x28, date = 2012-04-24 > [ 37.098941] microcode: CPU1 updated to revision 0x28, date = 2012-04-24 > [ 37.098944] perf_event_intel: PEBS enabled due to microcode update > [ 38.343029] r8169 0000:05:00.0 eth0: link up > [ 39.094944] r8169 0000:05:00.0 eth0: link down > [ 41.492768] r8169 0000:05:00.0 eth0: link up > [ 62.782910] xhci_hcd 0000:0b:00.0: Poll event ring: 4294943584 > [ 62.782938] xhci_hcd 0000:0b:00.0: op reg status = 0xffffffff > [ 62.782939] xhci_hcd 0000:0b:00.0: HW died, polling stopped. > [ 88.754183] pcieport 0000:00:1c.0: PME# enabled > [ 88.764182] xhci_hcd 0000:0b:00.0: PME# disabled > [ 88.764192] xhci_hcd 0000:0b:00.0: enabling bus mastering > [ 88.764206] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > [ 88.764242] xhci_hcd 0000:0b:00.0: Port Status Change Event for port 2 > [ 88.764246] xhci_hcd 0000:0b:00.0: resume root hub > [ 88.764259] xhci_hcd 0000:0b:00.0: handle_port_status: starting port polling. > [ 88.764276] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling. > [ 88.764281] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 > > > What "HW died? Why 1c.0 is here? What is this device actually doing? It's harmless. The xHCI polling loop to debug the host registers and rings simply notices that the registers are reading as all ffs. I believe that's normal when a PCI device is in D3. I just haven't had time to make a patch to disable the polling loop when the host is suspended. So, for now, ignore the "HW died, polling stopped." messages. > Nevertheless, I went to check if if the USB3 socket dies after first unplug of device > or not anymore thanks to the patch being tested: > > I plugged into the USB3.0 socket a mouse, it worked. Around its unplug I got: > > [ 94.954779] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100 > [ 94.954795] hub 3-0:1.0: hub_suspend > [ 94.954802] usb usb3: bus auto-suspend, wakeup 1 > [ 94.954817] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > [ 94.954835] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling. > [ 94.954857] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > [ 94.954898] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 > [ 94.954983] xhci_hcd 0000:0b:00.0: PME# enabled > [ 169.622513] hub 2-1:1.0: state 7 ports 8 chg 0000 evt 0004 > [ 169.623057] hub 2-1:1.0: port 2, status 0101, change 0001, 12 Mb/s > [ 169.777012] hub 2-1:1.0: debounce: port 2: total 100ms stable 100ms status 0x101 > [ 169.856992] usb 2-1.2: new low-speed USB device number 4 using ehci-pci > > and the port was dead, no matter what "lsusb -v or -vv" options I tried. At about > [ 169.622513] I plugged the mouse into a USB2.0 socket (do not know if that is 1a.0 or 1d.0). All right, I wonder if the USB core/xHCI driver is forgetting to clear a port status change bit after the device is unplugged. That can cause the xHCI host to not give us a port status change event later (and thus no PME). Looking at the logs later, it doesn't seem like we do this though. > If I run lsusb -vv it does (with the problematic patch): > > [ 1760.414086] pcieport 0000:00:1c.4: PME# disabled > [ 1760.434314] xhci_hcd 0000:0b:00.0: PME# disabled > [ 1760.434327] xhci_hcd 0000:0b:00.0: enabling bus mastering > [ 1760.434338] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > [ 1760.434360] xhci_hcd 0000:0b:00.0: Port Status Change Event for port 2 Ok, so the xHCI driver *is* getting a port status change event, and thus must have gotten a PME. So the PCI layer is doing its job. > [ 1760.434363] xhci_hcd 0000:0b:00.0: resume root hub > [ 1760.434367] xhci_hcd 0000:0b:00.0: handle_port_status: starting port polling. > [ 1760.434378] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling. > [ 1760.434383] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 > [ 1760.434388] usb usb3: usb auto-resume > [ 1760.434407] hub 3-0:1.0: hub_resume > [ 1760.434439] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > [ 1760.434440] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 > [ 1760.434464] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x202a0 > [ 1760.434465] xhci_hcd 0000:0b:00.0: Get port status returned 0x10100 > [ 1760.434492] xhci_hcd 0000:0b:00.0: clear port connect change, actual port 1 status = 0x2a0 Odd. The port status shows there's no device connected, but there was a connect change: sarah@xanatos:~$ ./decode-port-status 0x202a0 port status = 0x0202a0 bit 0 (CCS) 0x0, device not connected bit 1 (PED) 0x0, port disabled bit 3 (OCA) 0x0, no over-current condition bit 4 (PR) 0x0, port not in reset bits 8:5 (PLS) 0x5, link is in the RxDetect state bit 9 (PP) 0x1, port power on bits 13:10 (speed) 0x0, Undefined bits 15:14 (indicators) 0x0, port indicators are off bit 17 (CSC) 0x1, connect change bit 18 (PEC) 0x0, no port enable/disable change bit 19 (WRC) 0x0, no warm port reset change bit 20 (OCC) 0x0, no over-current change bit 21 (PRC) 0x0, no port reset change bit 22 (PLC) 0x0, no port link change bit 23 (CEC) 0x0, no port config error change bit 25 (WCE) 0x0, wake on connect disabled bit 26 (WDE) 0x0, wake on disconnect disabled bit 27 (WOE) 0x0, wake on over-current enable disabled bit 30 (DR) 0x0, device is permanently attached RxDetect is the "I'm looking for a USB device" port state. > [ 1760.434642] usb usb4: usb wakeup-resume > [ 1760.434646] usb usb4: usb auto-resume > [ 1760.434661] hub 4-0:1.0: hub_resume > [ 1760.434683] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > [ 1760.434684] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 > [ 1760.434710] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 > [ 1760.434711] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 > [ 1760.434727] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 1760.434757] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 0 status = 0xe0002a0 > [ 1760.434784] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 1 status = 0xe0002a0 > [ 1760.434791] hub 4-0:1.0: hub_suspend > [ 1760.434796] usb usb4: bus auto-suspend, wakeup 1 > [ 1760.434807] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > [ 1760.553734] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > [ 1760.553751] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 1760.574793] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > [ 1760.574794] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 > [ 1760.575300] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 > [ 1760.575301] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 sarah@xanatos:~$ ./decode-port-status 0x2a0 port status = 0x0002a0 bit 0 (CCS) 0x0, device not connected bit 1 (PED) 0x0, port disabled bit 3 (OCA) 0x0, no over-current condition bit 4 (PR) 0x0, port not in reset bits 8:5 (PLS) 0x5, link is in the RxDetect state bit 9 (PP) 0x1, port power on bits 13:10 (speed) 0x0, Undefined bits 15:14 (indicators) 0x0, port indicators are off bit 17 (CSC) 0x0, no connect change bit 18 (PEC) 0x0, no port enable/disable change bit 19 (WRC) 0x0, no warm port reset change bit 20 (OCC) 0x0, no over-current change bit 21 (PRC) 0x0, no port reset change bit 22 (PLC) 0x0, no port link change bit 23 (CEC) 0x0, no port config error change bit 25 (WCE) 0x0, wake on connect disabled bit 26 (WDE) 0x0, wake on disconnect disabled bit 27 (WOE) 0x0, wake on over-current enable disabled bit 30 (DR) 0x0, device is permanently attached Nope, your host really isn't reporting there's a device connected *at all*. That's just broken hardware, and there's really nothing software can do if the hardware isn't reporting connect events, even with polling. It also doesn't sound like the other TI redriver bug. That bug only effected USB 3.0 ports, and when lsusb was run, we would find the port in Compliance Mode. This is the host simply not reporting the USB 2.0 port connect at all. Maybe if we completely disable PCI runtime PM for your host, we can work around this bug? Can you send me the output of `sudo lspci -vvv -n` again? Sarah Sharp > [ 1760.576768] hub 3-0:1.0: hub_suspend > [ 1760.576774] usb usb3: bus auto-suspend, wakeup 1 > [ 1760.576789] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > [ 1760.576802] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling. > [ 1760.576817] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > [ 1760.576851] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 > [ 1760.576938] xhci_hcd 0000:0b:00.0: PME# enabled > [ 1760.613874] xhci_hcd 0000:0b:00.0: PME# disabled > [ 1760.613884] xhci_hcd 0000:0b:00.0: enabling bus mastering > [ 1760.613895] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > [ 1760.613914] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling. > [ 1760.613922] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > [ 1760.613924] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 > [ 1760.613929] usb usb4: usb auto-resume > [ 1760.613945] hub 4-0:1.0: hub_resume > [ 1760.613981] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > [ 1760.613982] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 > [ 1760.614010] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 > [ 1760.614012] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 > [ 1760.614038] usb usb3: usb wakeup-resume > [ 1760.614040] usb usb3: usb auto-resume > [ 1760.614059] hub 3-0:1.0: hub_resume > [ 1760.614080] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > [ 1760.614081] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 > [ 1760.614104] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 > [ 1760.614105] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 > [ 1760.614122] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 1760.614126] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000 > [ 1760.614134] hub 3-0:1.0: hub_suspend > [ 1760.614139] usb usb3: bus auto-suspend, wakeup 1 > [ 1760.614152] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > [ 1760.623621] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > [ 1760.646744] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > [ 1760.646746] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 > [ 1760.647281] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 > [ 1760.647283] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 > [ 1760.657965] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 0 status = 0xe0002a0 > [ 1760.657992] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 1 status = 0xe0002a0 > [ 1760.658000] hub 4-0:1.0: hub_suspend > [ 1760.658004] usb usb4: bus auto-suspend, wakeup 1 > [ 1760.658015] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > [ 1760.658027] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling. > [ 1760.658042] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > [ 1760.658074] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 > [ 1760.658159] xhci_hcd 0000:0b:00.0: PME# enabled > [ 1760.683743] pcieport 0000:00:1c.4: PME# enabled -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Sarah, please let me know if you feel the test was screwed by laptop-mode-tools kicking in, although I believed they were not running while I was on AC power. I was testing under these conditions: vostro ~ # grep . /sys/bus/pci/devices/*/power/control /sys/bus/pci/devices/0000:00:00.0/power/control:auto /sys/bus/pci/devices/0000:00:02.0/power/control:auto /sys/bus/pci/devices/0000:00:16.0/power/control:auto /sys/bus/pci/devices/0000:00:1a.0/power/control:auto /sys/bus/pci/devices/0000:00:1b.0/power/control:auto /sys/bus/pci/devices/0000:00:1c.0/power/control:auto /sys/bus/pci/devices/0000:00:1c.1/power/control:auto /sys/bus/pci/devices/0000:00:1c.3/power/control:auto /sys/bus/pci/devices/0000:00:1c.4/power/control:auto /sys/bus/pci/devices/0000:00:1c.7/power/control:auto /sys/bus/pci/devices/0000:00:1d.0/power/control:auto /sys/bus/pci/devices/0000:00:1f.0/power/control:auto /sys/bus/pci/devices/0000:00:1f.2/power/control:auto /sys/bus/pci/devices/0000:00:1f.3/power/control:auto /sys/bus/pci/devices/0000:05:00.0/power/control:auto /sys/bus/pci/devices/0000:09:00.0/power/control:auto /sys/bus/pci/devices/0000:0b:00.0/power/control:auto /sys/bus/pci/devices/0000:11:00.0/power/control:auto vostro ~ # grep . /sys/bus/pci/devices/*/power/runtime_status /sys/bus/pci/devices/0000:00:00.0/power/runtime_status:suspended /sys/bus/pci/devices/0000:00:02.0/power/runtime_status:active /sys/bus/pci/devices/0000:00:16.0/power/runtime_status:suspended /sys/bus/pci/devices/0000:00:1a.0/power/runtime_status:active /sys/bus/pci/devices/0000:00:1b.0/power/runtime_status:active /sys/bus/pci/devices/0000:00:1c.0/power/runtime_status:suspended /sys/bus/pci/devices/0000:00:1c.1/power/runtime_status:active /sys/bus/pci/devices/0000:00:1c.3/power/runtime_status:active /sys/bus/pci/devices/0000:00:1c.4/power/runtime_status:active /sys/bus/pci/devices/0000:00:1c.7/power/runtime_status:active /sys/bus/pci/devices/0000:00:1d.0/power/runtime_status:active /sys/bus/pci/devices/0000:00:1f.0/power/runtime_status:active /sys/bus/pci/devices/0000:00:1f.2/power/runtime_status:active /sys/bus/pci/devices/0000:00:1f.3/power/runtime_status:suspended /sys/bus/pci/devices/0000:05:00.0/power/runtime_status:active /sys/bus/pci/devices/0000:09:00.0/power/runtime_status:active /sys/bus/pci/devices/0000:0b:00.0/power/runtime_status:active /sys/bus/pci/devices/0000:11:00.0/power/runtime_status:active vostro ~ # My apologies if that twisted the test and thanks for you detailed explanations. I will spot below, however, a few questions. Sarah Sharp wrote: > On Fri, Mar 29, 2013 at 04:05:54PM +0100, Martin Mokrejs wrote: > >> Nevertheless, I went to check if if the USB3 socket dies after first unplug of device >> or not anymore thanks to the patch being tested: >> >> I plugged into the USB3.0 socket a mouse, it worked. Around its unplug I got: >> >> [ 94.954779] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100 >> [ 94.954795] hub 3-0:1.0: hub_suspend >> [ 94.954802] usb usb3: bus auto-suspend, wakeup 1 >> [ 94.954817] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. >> [ 94.954835] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling. >> [ 94.954857] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 >> [ 94.954898] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 >> [ 94.954983] xhci_hcd 0000:0b:00.0: PME# enabled >> [ 169.622513] hub 2-1:1.0: state 7 ports 8 chg 0000 evt 0004 >> [ 169.623057] hub 2-1:1.0: port 2, status 0101, change 0001, 12 Mb/s >> [ 169.777012] hub 2-1:1.0: debounce: port 2: total 100ms stable 100ms status 0x101 >> [ 169.856992] usb 2-1.2: new low-speed USB device number 4 using ehci-pci >> >> and the port was dead, no matter what "lsusb -v or -vv" options I tried. At about >> [ 169.622513] I plugged the mouse into a USB2.0 socket (do not know if that is 1a.0 or 1d.0). > > All right, I wonder if the USB core/xHCI driver is forgetting to clear a > port status change bit after the device is unplugged. That can cause > the xHCI host to not give us a port status change event later (and thus > no PME). Looking at the logs later, it doesn't seem like we do this > though. > >> If I run lsusb -vv it does (with the problematic patch): >> >> [ 1760.414086] pcieport 0000:00:1c.4: PME# disabled >> [ 1760.434314] xhci_hcd 0000:0b:00.0: PME# disabled >> [ 1760.434327] xhci_hcd 0000:0b:00.0: enabling bus mastering >> [ 1760.434338] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 >> [ 1760.434360] xhci_hcd 0000:0b:00.0: Port Status Change Event for port 2 > > Ok, so the xHCI driver *is* getting a port status change event, and thus > must have gotten a PME. So the PCI layer is doing its job. > >> [ 1760.434363] xhci_hcd 0000:0b:00.0: resume root hub >> [ 1760.434367] xhci_hcd 0000:0b:00.0: handle_port_status: starting port polling. >> [ 1760.434378] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling. >> [ 1760.434383] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 >> [ 1760.434388] usb usb3: usb auto-resume >> [ 1760.434407] hub 3-0:1.0: hub_resume >> [ 1760.434439] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 >> [ 1760.434440] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 >> [ 1760.434464] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x202a0 >> [ 1760.434465] xhci_hcd 0000:0b:00.0: Get port status returned 0x10100 >> [ 1760.434492] xhci_hcd 0000:0b:00.0: clear port connect change, actual port 1 status = 0x2a0 > > Odd. The port status shows there's no device connected, but there was a > connect change: > > sarah@xanatos:~$ ./decode-port-status 0x202a0 > port status = 0x0202a0 > bit 0 (CCS) 0x0, device not connected > bit 1 (PED) 0x0, port disabled > bit 3 (OCA) 0x0, no over-current condition > bit 4 (PR) 0x0, port not in reset > bits 8:5 (PLS) 0x5, link is in the RxDetect state > bit 9 (PP) 0x1, port power on > bits 13:10 (speed) 0x0, Undefined > bits 15:14 (indicators) 0x0, port indicators are off > bit 17 (CSC) 0x1, connect change > bit 18 (PEC) 0x0, no port enable/disable change > bit 19 (WRC) 0x0, no warm port reset change > bit 20 (OCC) 0x0, no over-current change > bit 21 (PRC) 0x0, no port reset change > bit 22 (PLC) 0x0, no port link change > bit 23 (CEC) 0x0, no port config error change > bit 25 (WCE) 0x0, wake on connect disabled > bit 26 (WDE) 0x0, wake on disconnect disabled > bit 27 (WOE) 0x0, wake on over-current enable disabled > bit 30 (DR) 0x0, device is permanently attached > > RxDetect is the "I'm looking for a USB device" port state. > >> [ 1760.434642] usb usb4: usb wakeup-resume >> [ 1760.434646] usb usb4: usb auto-resume >> [ 1760.434661] hub 4-0:1.0: hub_resume >> [ 1760.434683] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 >> [ 1760.434684] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 >> [ 1760.434710] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 >> [ 1760.434711] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 >> [ 1760.434727] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000 >> [ 1760.434757] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 0 status = 0xe0002a0 >> [ 1760.434784] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 1 status = 0xe0002a0 >> [ 1760.434791] hub 4-0:1.0: hub_suspend >> [ 1760.434796] usb usb4: bus auto-suspend, wakeup 1 >> [ 1760.434807] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. >> [ 1760.553734] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. >> [ 1760.553751] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000 >> [ 1760.574793] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 >> [ 1760.574794] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 >> [ 1760.575300] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 >> [ 1760.575301] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 > > sarah@xanatos:~$ ./decode-port-status 0x2a0 > port status = 0x0002a0 > bit 0 (CCS) 0x0, device not connected > bit 1 (PED) 0x0, port disabled > bit 3 (OCA) 0x0, no over-current condition > bit 4 (PR) 0x0, port not in reset > bits 8:5 (PLS) 0x5, link is in the RxDetect state > bit 9 (PP) 0x1, port power on > bits 13:10 (speed) 0x0, Undefined > bits 15:14 (indicators) 0x0, port indicators are off > bit 17 (CSC) 0x0, no connect change > bit 18 (PEC) 0x0, no port enable/disable change > bit 19 (WRC) 0x0, no warm port reset change > bit 20 (OCC) 0x0, no over-current change > bit 21 (PRC) 0x0, no port reset change > bit 22 (PLC) 0x0, no port link change > bit 23 (CEC) 0x0, no port config error change > bit 25 (WCE) 0x0, wake on connect disabled > bit 26 (WDE) 0x0, wake on disconnect disabled > bit 27 (WOE) 0x0, wake on over-current enable disabled > bit 30 (DR) 0x0, device is permanently attached > > Nope, your host really isn't reporting there's a device connected > *at all*. That's just broken hardware, and there's really nothing > software can do if the hardware isn't reporting connect events, even > with polling. > > It also doesn't sound like the other TI redriver bug. That bug only > effected USB 3.0 ports, and when lsusb was run, we would find the port > in Compliance Mode. This is the host simply not reporting the USB 2.0 > port connect at all. > > Maybe if we completely disable PCI runtime PM for your host, we can work > around this bug? I am not sure I understand what you mean. The proposed patch makes the situation worse. To be able to use the xHCI port for second and later times, I have to plugin a device and run 'lsusb -vv' to get the device detected before the "port" falls asleep. This is NOT necessary for the SandyBridge USB2.0 port under same conditions (well, regarding the disclaimer I made on the very top of this message, from the other thread where Ying found that I had laptop-mode-tools installed I realized that laptop-mode-tools fiddled with xHCI port while NOT with EHCI port. Please correct me if I was wrong. So, please re-consider your above conclusions. Most importantly, I don not understand the "This is the host simply not reporting the USB 2.0 port connect at all.". Did you mean "USB 3.0 instead"? Other than that, I am ready to file a bug report to Dell's Pro Support site but from my last experience they were quite clue-less regarding the broken "express card PresDet detection". ;-) I bet they could replace the TexasInstruments USB3.0 card which is a separate thing in the laptop. At least I could get the TI hardware which has hopefully fixed the redriver. ;-) How could I reproduce the issue in Win7 which are on the laptop? I mean, the change the PM handling to reproduce what I got on linux under laptop-mode-tools? ;) > > Can you send me the output of `sudo lspci -vvv -n` again? Will send after I reboot into a clean state and re-test the behavior while laptop-mode-tools are gone. Maybe the issue will remain anyways. So so far I tested effectively as under: echo auto > /sys/bus/pci/devices/0000:0b:00.0/power/control and without laptop-mode-tools trickery I should be now testing under echo on > /sys/bus/pci/devices/0000:0b:00.0/power/control , right? Thank you, Martin -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
So, I re-tested again with the patch and 3.8.3 but without laptop-mode-tools.
The xHCI port works fine provided /sys/bus/pci/devices/0000:0b:00.0/power/control
is set to on and /sys/bus/pci/devices/0000:00:1c.4/power/control also to on.
If I set parent 1c.4 to auto, it gets suspended and the port seems dead until
a device is in and I wake it using lsusb -vv. There must be a bug in linux so
that it cannot overcome upstream 1c.4 sleeping while willing to access 0b:00.
Or more likely, that upstream root port should be prevented to fall asleep, right?
# lspci -tv
-[0000:00]-+-00.0 Intel Corporation 2nd Generation Core Processor Family DRAM Controller
+-02.0 Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller
+-16.0 Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1
+-1a.0 Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2
+-1b.0 Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller
+-1c.0-[03-04]--
+-1c.1-[05-06]----00.0 Realtek Semiconductor Co., Ltd. RTL8111/8168 PCI Express Gigabit Ethernet controller
+-1c.3-[09-0a]----00.0 Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak]
+-1c.4-[0b-0c]----00.0 Texas Instruments TUSB73x0 SuperSpeed USB 3.0 xHCI Host Controller
+-1c.7-[11-16]----00.0 Silicon Image, Inc. SiI 3132 Serial ATA Raid II Controller
+-1d.0 Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1
+-1f.0 Intel Corporation HM67 Express Chipset Family LPC Controller
+-1f.2 Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller
\-1f.3 Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller
#
I have attached the lspci -vvv -n.
Interestingly, maybe, the TI xHCI controller ended up after my tests
changed. I booted up with all devices with power/control set to on
due to laptop-mode-tools uninstalled. I fiddled with the echo commands
tweaking 1c.4 and 0b:00 but in the end set both back to "on". However,
below is some diff. Don't know what that means. Maybe because I tried
to write '0', 'off', 'none' to the control file? ;-)
00:1c.4 0604: 8086:1c18 (rev b5) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=0b, subordinate=0c, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: f7d00000-f7dfffff
Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #5, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt+
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot #4, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet- LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
- RootSta: PME ReqID 0000, PMEStatus- PMEPending-
+ RootSta: PME ReqID 0b00, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: 1028:04b3
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
0b:00.0 0c03: 104c:8241 (rev 02) (prog-if 30 [XHCI])
Subsystem: 1028:04b3
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f7d00000 (64-bit, non-prefetchable) [size=64K]
Region 2: Memory at f7d10000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=100mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [48] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 1024 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-, OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [c0] MSI-X: Enable+ Count=8 Masked-
Vector table: BAR=2 offset=00000000
PBA: BAR=2 offset=00001000
Capabilities: [100 v2] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
+ CESta: RxErr- BadTLP- BadDLLP+ Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [150 v1] Device Serial Number 08-00-28-00-00-20-00-00
Kernel driver in use: xhci_hcd
00:00.0 0600: 8086:0104 (rev 09)
Subsystem: 1028:04b3
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ >SERR- <PERR- INTx-
Latency: 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
00:02.0 0300: 8086:0126 (rev 09) (prog-if 00 [VGA controller])
Subsystem: 1028:04b3
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 47
Region 0: Memory at f6800000 (64-bit, non-prefetchable) [size=4M]
Region 2: Memory at e0000000 (64-bit, prefetchable) [size=256M]
Region 4: I/O ports at f000 [size=64]
Expansion ROM at <unassigned> [disabled]
Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 4162
Capabilities: [d0] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a4] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: i915
00:16.0 0780: 8086:1c3a (rev 04)
Subsystem: 1028:04b3
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 11
Region 0: Memory at f7f0a000 (64-bit, non-prefetchable) [size=16]
Capabilities: [50] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [8c] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
00:1a.0 0c03: 8086:1c2d (rev 05) (prog-if 20 [EHCI])
Subsystem: 1028:04b3
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f7f08000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: ehci-pci
00:1b.0 0403: 8086:1c20 (rev 05)
Subsystem: 1028:04b3
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 45
Region 0: Memory at f7f00000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=55mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0300c Data: 4142
Capabilities: [70] Express (v1) Root Complex Integrated Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE- FLReset+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #0, Speed unknown, Width x0, ASPM unknown, Latency L0 <64ns, L1 <1us
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed unknown, Width x0, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt-
Capabilities: [100 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=01
Status: NegoPending- InProgress-
VC1: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=1 ArbSelect=Fixed TC/VC=22
Status: NegoPending- InProgress-
Capabilities: [130 v1] Root Complex Link
Desc: PortNumber=0f ComponentID=00 EltType=Config
Link0: Desc: TargetPort=00 TargetComponent=00 AssocRCRB- LinkType=MemMapped LinkValid+
Addr: 00000000fed1c000
Kernel driver in use: snd_hda_intel
00:1c.0 0604: 8086:1c10 (rev b5) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=03, subordinate=04, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: fff00000-000fffff
Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #1, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <1us, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x0, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot #0, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock-
Changed: MRL- PresDet- LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: 1028:04b3
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
00:1c.1 0604: 8086:1c12 (rev b5) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=05, subordinate=06, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: fff00000-000fffff
Prefetchable memory behind bridge: 00000000f1100000-00000000f11fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #2, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot #1, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet- LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: 1028:04b3
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
00:1c.3 0604: 8086:1c16 (rev b5) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=09, subordinate=0a, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: f7e00000-f7efffff
Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #4, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot #3, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet- LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: 1028:04b3
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
00:1c.4 0604: 8086:1c18 (rev b5) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=0b, subordinate=0c, sec-latency=0
I/O behind bridge: 0000f000-00000fff
Memory behind bridge: f7d00000-f7dfffff
Prefetchable memory behind bridge: 00000000fff00000-00000000000fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort+ <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #5, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt+
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise-
Slot #4, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet- LinkState+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: 1028:04b3
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
00:1c.7 0604: 8086:1c1e (rev b5) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Bus: primary=00, secondary=11, subordinate=16, sec-latency=0
I/O behind bridge: 0000c000-0000dfff
Memory behind bridge: f6c00000-f7cfffff
Prefetchable memory behind bridge: 00000000f0000000-00000000f10fffff
Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B-
PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-
Capabilities: [40] Express (v2) Root Port (Slot+), MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend-
LnkCap: Port #8, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <16us
ClockPM- Surprise- LLActRep+ BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt-
SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+
Slot #7, PowerLimit 10.000W; Interlock- NoCompl+
SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg-
Control: AttnInd Unknown, PwrInd Unknown, Power- Interlock-
SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet+ Interlock-
Changed: MRL- PresDet- LinkState-
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible-
RootCap: CRSVisible-
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range BC, TimeoutDis+, LTR-, OBFF Not Supported ARIFwd-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd-
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [80] MSI: Enable- Count=1/1 Maskable- 64bit-
Address: 00000000 Data: 0000
Capabilities: [90] Subsystem: 1028:04b3
Capabilities: [a0] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Kernel driver in use: pcieport
00:1d.0 0c03: 8086:1c26 (rev 05) (prog-if 20 [EHCI])
Subsystem: 1028:04b3
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin A routed to IRQ 23
Region 0: Memory at f7f07000 (32-bit, non-prefetchable) [size=1K]
Capabilities: [50] Power Management version 2
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [58] Debug port: BAR=1 offset=00a0
Capabilities: [98] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: ehci-pci
00:1f.0 0601: 8086:1c4b (rev 05)
Subsystem: 1028:04b3
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Capabilities: [e0] Vendor Specific Information: Len=0c <?>
Kernel driver in use: lpc_ich
00:1f.2 0106: 8086:1c03 (rev 05) (prog-if 01 [AHCI 1.0])
Subsystem: 1028:04b3
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0
Interrupt: pin B routed to IRQ 40
Region 0: I/O ports at f0b0 [size=8]
Region 1: I/O ports at f0a0 [size=4]
Region 2: I/O ports at f090 [size=8]
Region 3: I/O ports at f080 [size=4]
Region 4: I/O ports at f060 [size=32]
Region 5: Memory at f7f06000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [80] MSI: Enable+ Count=1/1 Maskable- 64bit-
Address: fee0300c Data: 4191
Capabilities: [70] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot+,D3cold-)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [a8] SATA HBA v1.0 BAR4 Offset=00000004
Capabilities: [b0] PCI Advanced Features
AFCap: TP+ FLR+
AFCtrl: FLR-
AFStatus: TP-
Kernel driver in use: ahci
00:1f.3 0c05: 8086:1c22 (rev 05)
Subsystem: 1028:04b3
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin C routed to IRQ 18
Region 0: Memory at f7f05000 (64-bit, non-prefetchable) [size=256]
Region 4: I/O ports at f040 [size=32]
05:00.0 0200: 10ec:8168 (rev 06)
Subsystem: 1028:04b3
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 41
Region 0: I/O ports at e000 [size=256]
Region 2: Memory at f1104000 (64-bit, prefetchable) [size=4K]
Region 4: Memory at f1100000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0300c Data: 41a1
Capabilities: [70] Express (v2) Endpoint, MSI 01
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <512ns, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 4096 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-, OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00000800
Capabilities: [d0] Vital Product Data
Unknown small resource type 00, will not decode more.
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr+ BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [140 v1] Virtual Channel
Caps: LPEVC=0 RefClk=100ns PATEntryBits=1
Arb: Fixed- WRR32- WRR64- WRR128-
Ctrl: ArbSelect=Fixed
Status: InProgress-
VC0: Caps: PATOffset=00 MaxTimeSlots=1 RejSnoopTrans-
Arb: Fixed- WRR32- WRR64- WRR128- TWRR128- WRR256-
Ctrl: Enable+ ID=0 ArbSelect=Fixed TC/VC=ff
Status: NegoPending- InProgress-
Capabilities: [160 v1] Device Serial Number 01-00-00-00-68-4c-e0-00
Kernel driver in use: r8169
09:00.0 0280: 8086:008a (rev 34)
Subsystem: 8086:5325
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 46
Region 0: Memory at f7e00000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [c8] Power Management version 3
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Address: 00000000fee0300c Data: 4152
Capabilities: [e0] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <512ns, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 128 bytes, MaxReadReq 128 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <4us, L1 <32us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap- CGenEn- ChkCap- ChkEn-
Capabilities: [140 v1] Device Serial Number 4c-80-93-ff-ff-15-e6-c7
Kernel driver in use: iwlwifi
0b:00.0 0c03: 104c:8241 (rev 02) (prog-if 30 [XHCI])
Subsystem: 1028:04b3
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 16
Region 0: Memory at f7d00000 (64-bit, non-prefetchable) [size=64K]
Region 2: Memory at f7d10000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=100mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [48] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 1024 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ UncorrErr- FatalErr- UnsuppReq+ AuxPwr+ TransPend-
LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Not Supported, TimeoutDis+, LTR-, OBFF Not Supported
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance De-emphasis: -6dB
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [c0] MSI-X: Enable+ Count=8 Masked-
Vector table: BAR=2 offset=00000000
PBA: BAR=2 offset=00001000
Capabilities: [100 v2] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn-
Capabilities: [150 v1] Device Serial Number 08-00-28-00-00-20-00-00
Kernel driver in use: xhci_hcd
11:00.0 0180: 1095:3132 (rev 01)
Subsystem: 1095:3132
Physical Slot: 1
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 19
Region 0: Memory at f6c84000 (64-bit, non-prefetchable) [size=128]
Region 2: Memory at f6c80000 (64-bit, non-prefetchable) [size=16K]
Region 4: I/O ports at c000 [size=128]
Expansion ROM at f6c00000 [disabled] [size=512K]
Capabilities: [54] Power Management version 2
Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [5c] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v1) Legacy Endpoint, MSI 00
DevCap: MaxPayload 1024 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
MaxPayload 128 bytes, MaxReadReq 4096 bytes
DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq+ AuxPwr- TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM L0s, Latency L0 unlimited, L1 unlimited
ClockPM- Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain- CommClk+
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
Capabilities: [100 v1] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES- TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr-
AERCap: First Error Pointer: 14, GenCap+ CGenEn- ChkCap+ ChkEn-
Kernel driver in use: sata_sil24
On Friday, March 29, 2013 04:05:54 PM Martin Mokrejs wrote: > Hi, > I applied this patches over 3.8.3 hoping it will fix my issue under > thread: "Re: 3.8.2: xhci port is dead until pcieport PME# goes to disabled" > but unfortunately, it is even worse! Now, although lsusb -v nor lsusb -vv do > wakeup the XHCI port but it falls asleep immediately, more quickly than I am > able to plug a device into the socket. To get a device working in the USB3 socket > I need to plug it in, run lsusb -vv and then it is recognized. > > Without the patch, the 'lsusb -vv' woke up the port (PME# disabled happened > on both 1c.4 and 0b:00.0) and I had unlimited time to find some USB device > around and to plug it into the slot. Well, using lsusb to work around problems in the PCI subsystem isn't even *supposed* to work as far as I can tell. First off, do you use laptop-mode (or something equivalent) to enable runtime PM for all PCI devices in your system? If you do, please test things without it and see if they work then. Second, do things work after you echo "on" to the xHCI controller's /sys/devices/.../power/control file? Rafael
On Friday, March 29, 2013 09:05:35 AM Sarah Sharp wrote: > On Fri, Mar 29, 2013 at 04:05:54PM +0100, Martin Mokrejs wrote: > > [ 36.594171] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling. > > [ 36.594202] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > > [ 36.594247] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 > > [ 36.594349] xhci_hcd 0000:0b:00.0: PME# enabled > > [ 36.703695] r8169 0000:05:00.0 eth0: link down > > [ 37.098299] microcode: CPU0 updated to revision 0x28, date = 2012-04-24 > > [ 37.098941] microcode: CPU1 updated to revision 0x28, date = 2012-04-24 > > [ 37.098944] perf_event_intel: PEBS enabled due to microcode update > > [ 38.343029] r8169 0000:05:00.0 eth0: link up > > [ 39.094944] r8169 0000:05:00.0 eth0: link down > > [ 41.492768] r8169 0000:05:00.0 eth0: link up > > [ 62.782910] xhci_hcd 0000:0b:00.0: Poll event ring: 4294943584 > > [ 62.782938] xhci_hcd 0000:0b:00.0: op reg status = 0xffffffff > > [ 62.782939] xhci_hcd 0000:0b:00.0: HW died, polling stopped. > > [ 88.754183] pcieport 0000:00:1c.0: PME# enabled > > [ 88.764182] xhci_hcd 0000:0b:00.0: PME# disabled > > [ 88.764192] xhci_hcd 0000:0b:00.0: enabling bus mastering > > [ 88.764206] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > > [ 88.764242] xhci_hcd 0000:0b:00.0: Port Status Change Event for port 2 > > [ 88.764246] xhci_hcd 0000:0b:00.0: resume root hub > > [ 88.764259] xhci_hcd 0000:0b:00.0: handle_port_status: starting port polling. > > [ 88.764276] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling. > > [ 88.764281] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 > > > > > > What "HW died? Why 1c.0 is here? What is this device actually doing? > > It's harmless. The xHCI polling loop to debug the host registers and > rings simply notices that the registers are reading as all ffs. I > believe that's normal when a PCI device is in D3. I just haven't had > time to make a patch to disable the polling loop when the host is suspended. > > So, for now, ignore the "HW died, polling stopped." messages. > > > Nevertheless, I went to check if if the USB3 socket dies after first unplug of device > > or not anymore thanks to the patch being tested: > > > > I plugged into the USB3.0 socket a mouse, it worked. Around its unplug I got: > > > > [ 94.954779] hub 3-0:1.0: debounce: port 2: total 100ms stable 100ms status 0x100 > > [ 94.954795] hub 3-0:1.0: hub_suspend > > [ 94.954802] usb usb3: bus auto-suspend, wakeup 1 > > [ 94.954817] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > > [ 94.954835] xhci_hcd 0000:0b:00.0: xhci_suspend: stopping port polling. > > [ 94.954857] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > > [ 94.954898] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_suspend: 0 > > [ 94.954983] xhci_hcd 0000:0b:00.0: PME# enabled > > [ 169.622513] hub 2-1:1.0: state 7 ports 8 chg 0000 evt 0004 > > [ 169.623057] hub 2-1:1.0: port 2, status 0101, change 0001, 12 Mb/s > > [ 169.777012] hub 2-1:1.0: debounce: port 2: total 100ms stable 100ms status 0x101 > > [ 169.856992] usb 2-1.2: new low-speed USB device number 4 using ehci-pci > > > > and the port was dead, no matter what "lsusb -v or -vv" options I tried. At about > > [ 169.622513] I plugged the mouse into a USB2.0 socket (do not know if that is 1a.0 or 1d.0). > > All right, I wonder if the USB core/xHCI driver is forgetting to clear a > port status change bit after the device is unplugged. That can cause > the xHCI host to not give us a port status change event later (and thus > no PME). Looking at the logs later, it doesn't seem like we do this > though. > > > If I run lsusb -vv it does (with the problematic patch): > > > > [ 1760.414086] pcieport 0000:00:1c.4: PME# disabled > > [ 1760.434314] xhci_hcd 0000:0b:00.0: PME# disabled > > [ 1760.434327] xhci_hcd 0000:0b:00.0: enabling bus mastering > > [ 1760.434338] xhci_hcd 0000:0b:00.0: // Setting command ring address to 0xd6007001 > > [ 1760.434360] xhci_hcd 0000:0b:00.0: Port Status Change Event for port 2 > > Ok, so the xHCI driver *is* getting a port status change event, and thus > must have gotten a PME. So the PCI layer is doing its job. > > > [ 1760.434363] xhci_hcd 0000:0b:00.0: resume root hub > > [ 1760.434367] xhci_hcd 0000:0b:00.0: handle_port_status: starting port polling. > > [ 1760.434378] xhci_hcd 0000:0b:00.0: xhci_resume: starting port polling. > > [ 1760.434383] xhci_hcd 0000:0b:00.0: hcd_pci_runtime_resume: 0 > > [ 1760.434388] usb usb3: usb auto-resume > > [ 1760.434407] hub 3-0:1.0: hub_resume > > [ 1760.434439] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > > [ 1760.434440] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 > > [ 1760.434464] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x202a0 > > [ 1760.434465] xhci_hcd 0000:0b:00.0: Get port status returned 0x10100 > > [ 1760.434492] xhci_hcd 0000:0b:00.0: clear port connect change, actual port 1 status = 0x2a0 > > Odd. The port status shows there's no device connected, but there was a > connect change: > > sarah@xanatos:~$ ./decode-port-status 0x202a0 > port status = 0x0202a0 > bit 0 (CCS) 0x0, device not connected > bit 1 (PED) 0x0, port disabled > bit 3 (OCA) 0x0, no over-current condition > bit 4 (PR) 0x0, port not in reset > bits 8:5 (PLS) 0x5, link is in the RxDetect state > bit 9 (PP) 0x1, port power on > bits 13:10 (speed) 0x0, Undefined > bits 15:14 (indicators) 0x0, port indicators are off > bit 17 (CSC) 0x1, connect change > bit 18 (PEC) 0x0, no port enable/disable change > bit 19 (WRC) 0x0, no warm port reset change > bit 20 (OCC) 0x0, no over-current change > bit 21 (PRC) 0x0, no port reset change > bit 22 (PLC) 0x0, no port link change > bit 23 (CEC) 0x0, no port config error change > bit 25 (WCE) 0x0, wake on connect disabled > bit 26 (WDE) 0x0, wake on disconnect disabled > bit 27 (WOE) 0x0, wake on over-current enable disabled > bit 30 (DR) 0x0, device is permanently attached > > RxDetect is the "I'm looking for a USB device" port state. > > > [ 1760.434642] usb usb4: usb wakeup-resume > > [ 1760.434646] usb usb4: usb auto-resume > > [ 1760.434661] hub 4-0:1.0: hub_resume > > [ 1760.434683] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > > [ 1760.434684] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 > > [ 1760.434710] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 > > [ 1760.434711] xhci_hcd 0000:0b:00.0: Get port status returned 0x2a0 > > [ 1760.434727] hub 4-0:1.0: state 7 ports 2 chg 0000 evt 0000 > > [ 1760.434757] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 0 status = 0xe0002a0 > > [ 1760.434784] xhci_hcd 0000:0b:00.0: set port remote wake mask, actual port 1 status = 0xe0002a0 > > [ 1760.434791] hub 4-0:1.0: hub_suspend > > [ 1760.434796] usb usb4: bus auto-suspend, wakeup 1 > > [ 1760.434807] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > > [ 1760.553734] xhci_hcd 0000:0b:00.0: xhci_hub_status_data: stopping port polling. > > [ 1760.553751] hub 3-0:1.0: state 7 ports 2 chg 0000 evt 0000 > > [ 1760.574793] xhci_hcd 0000:0b:00.0: get port status, actual port 0 status = 0x2a0 > > [ 1760.574794] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 > > [ 1760.575300] xhci_hcd 0000:0b:00.0: get port status, actual port 1 status = 0x2a0 > > [ 1760.575301] xhci_hcd 0000:0b:00.0: Get port status returned 0x100 > > sarah@xanatos:~$ ./decode-port-status 0x2a0 > port status = 0x0002a0 > bit 0 (CCS) 0x0, device not connected > bit 1 (PED) 0x0, port disabled > bit 3 (OCA) 0x0, no over-current condition > bit 4 (PR) 0x0, port not in reset > bits 8:5 (PLS) 0x5, link is in the RxDetect state > bit 9 (PP) 0x1, port power on > bits 13:10 (speed) 0x0, Undefined > bits 15:14 (indicators) 0x0, port indicators are off > bit 17 (CSC) 0x0, no connect change > bit 18 (PEC) 0x0, no port enable/disable change > bit 19 (WRC) 0x0, no warm port reset change > bit 20 (OCC) 0x0, no over-current change > bit 21 (PRC) 0x0, no port reset change > bit 22 (PLC) 0x0, no port link change > bit 23 (CEC) 0x0, no port config error change > bit 25 (WCE) 0x0, wake on connect disabled > bit 26 (WDE) 0x0, wake on disconnect disabled > bit 27 (WOE) 0x0, wake on over-current enable disabled > bit 30 (DR) 0x0, device is permanently attached > > Nope, your host really isn't reporting there's a device connected > *at all*. That's just broken hardware, and there's really nothing > software can do if the hardware isn't reporting connect events, even > with polling. > > It also doesn't sound like the other TI redriver bug. That bug only > effected USB 3.0 ports, and when lsusb was run, we would find the port > in Compliance Mode. This is the host simply not reporting the USB 2.0 > port connect at all. > > Maybe if we completely disable PCI runtime PM for your host, we can work > around this bug? Well, that's what I've just asked Martin to try. Thanks, Rafael
On Thu, Mar 28, 2013 at 3:07 PM, Rafael J. Wysocki <rjw@sisk.pl> wrote: > From: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Subject: PCI / ACPI: Always resume devices on ACPI wakeup notifications > > It turns out that the _Lxx control methods provided by some BIOSes > clear the PME Status bit of PCI devices they handle, which means that > pci_acpi_wake_dev() cannot really use that bit to check whether or > not the device has signalled wakeup. > > One symptom of the problem is, for example, that when an affected PCI > USB controller is runtime-suspended, then plugging in a new USB device > into one of the controller's ports will not wake up the controller, > which should happen. > > For this reason, make pci_acpi_wake_dev() always attempt to resume > the device it is called for regardless of the device's PME Status bit > value (that bit still has to be cleared if set at this point, > though). > > Reported-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> > Acked-by: Matthew Garrett <mjg59@srcf.ucam.org> > Cc: 3.7+ <stable@vger.kernel.org> > --- > > The changelog in this version is slightly better than in the previous one, IMHO. I applied this to for-linus for v3.9. Thanks! > --- > drivers/pci/pci-acpi.c | 15 ++++++++------- > 1 file changed, 8 insertions(+), 7 deletions(-) > > Index: linux-pm/drivers/pci/pci-acpi.c > =================================================================== > --- linux-pm.orig/drivers/pci/pci-acpi.c > +++ linux-pm/drivers/pci/pci-acpi.c > @@ -53,14 +53,15 @@ static void pci_acpi_wake_dev(acpi_handl > return; > } > > - if (!pci_dev->pm_cap || !pci_dev->pme_support > - || pci_check_pme_status(pci_dev)) { > - if (pci_dev->pme_poll) > - pci_dev->pme_poll = false; > + /* Clear PME Status if set. */ > + if (pci_dev->pme_support) > + pci_check_pme_status(pci_dev); > > - pci_wakeup_event(pci_dev); > - pm_runtime_resume(&pci_dev->dev); > - } > + if (pci_dev->pme_poll) > + pci_dev->pme_poll = false; > + > + pci_wakeup_event(pci_dev); > + pm_runtime_resume(&pci_dev->dev); > > if (pci_dev->subordinate) > pci_pme_wakeup_bus(pci_dev->subordinate); > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Index: linux-pm/drivers/pci/pci-acpi.c =================================================================== --- linux-pm.orig/drivers/pci/pci-acpi.c +++ linux-pm/drivers/pci/pci-acpi.c @@ -53,14 +53,15 @@ static void pci_acpi_wake_dev(acpi_handl return; } - if (!pci_dev->pm_cap || !pci_dev->pme_support - || pci_check_pme_status(pci_dev)) { - if (pci_dev->pme_poll) - pci_dev->pme_poll = false; + /* Clear PME Status if set. */ + if (pci_dev->pme_support) + pci_check_pme_status(pci_dev); - pci_wakeup_event(pci_dev); - pm_runtime_resume(&pci_dev->dev); - } + if (pci_dev->pme_poll) + pci_dev->pme_poll = false; + + pci_wakeup_event(pci_dev); + pm_runtime_resume(&pci_dev->dev); if (pci_dev->subordinate) pci_pme_wakeup_bus(pci_dev->subordinate);