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Message-ID: <CAKbGBLhsqJWHYG9N0F=zNa+75snmPEL1nj1eUeNyvCKbOv1QRQ@mail.gmail.com> Date: Fri, 15 Aug 2014 04:19:58 -0700 From: Steven Noonan <steven@...inklabs.net> To: Andreas Noever <andreas.noever@...il.com> Cc: Linux Kernel mailing List <linux-kernel@...r.kernel.org> Subject: Re: Thunderbolt driver hotplug not working correctly On Tue, Aug 12, 2014 at 3:55 PM, Andreas Noever <andreas.noever@...il.com> wrote: > On Tue, Aug 12, 2014 at 11:01 AM, Steven Noonan <steven@...inklabs.net> wrote: >> Hello Andreas, >> >> I'm trying out the new Thunderbolt driver in Linus' tree and I'm >> noticing device hotplug isn't quite working correctly. >> >> I've got a Haswell 2013 MacBook Pro Retina and the Apple-vended >> Thunderbolt Ethernet adapter, which uses the tg3 driver. >> >> Here's what dmesg says when I unplug: >> >> [ 1866.359118] thunderbolt 0000:08:00.0: resetting error on 0:3. >> [ 1866.359150] thunderbolt 0000:08:00.0: 0:3: unplugged >> >> When I re-plug the device: >> >> [ 1872.481675] thunderbolt 0000:08:00.0: resetting error on 0:3. >> [ 1872.481695] thunderbolt 0000:08:00.0: 0:3: hotplug: scanning >> [ 1872.481764] thunderbolt 0000:08:00.0: 0:3: is connected, link is up (state: 2) >> [ 1872.482078] thunderbolt 0000:08:00.0: initializing Switch at 0x3 (depth: 1, up port: 1) >> [ 1872.482084] thunderbolt 0000:08:00.0: old switch config: >> [ 1872.482089] thunderbolt 0000:08:00.0: Switch: 8086:1549 (Revision: 0, TB Version: 1) >> [ 1872.482092] thunderbolt 0000:08:00.0: Max Port Number: 2 >> [ 1872.482094] thunderbolt 0000:08:00.0: Config: >> [ 1872.482098] thunderbolt 0000:08:00.0: Upstream Port Number: 0 Depth: 0 Route String: 0x0 Enabled: 0, PlugEventsDelay: 10ms >> [ 1872.482102] thunderbolt 0000:08:00.0: unknown1: 0x0 unknown4: 0x0 >> [ 1872.496213] thunderbolt 0000:08:00.0: 3: reading drom (length: 0x7b) >> [ 1872.821969] thunderbolt 0000:08:00.0: 3: uid: 0x10002014eed70 >> [ 1872.822067] thunderbolt 0000:08:00.0: Port 0: 8086:1549 (Revision: 0, TB Version: 1, Type: Port (0x1)) >> [ 1872.822069] thunderbolt 0000:08:00.0: Max hop id (in/out): 7/7 >> [ 1872.822071] thunderbolt 0000:08:00.0: Max counters: 8 >> [ 1872.822072] thunderbolt 0000:08:00.0: NFC Credits: 0x700000 >> [ 1872.822566] thunderbolt 0000:08:00.0: Port 1: 8086:1549 (Revision: 0, TB Version: 1, Type: Port (0x1)) >> [ 1872.822567] thunderbolt 0000:08:00.0: Max hop id (in/out): 8/8 >> [ 1872.822569] thunderbolt 0000:08:00.0: Max counters: 4 >> [ 1872.822570] thunderbolt 0000:08:00.0: NFC Credits: 0x3c00000 >> [ 1872.822666] thunderbolt 0000:08:00.0: Port 2: 8086:1549 (Revision: 0, TB Version: 1, Type: PCIe (0x100102)) >> [ 1872.822667] thunderbolt 0000:08:00.0: Max hop id (in/out): 8/8 >> [ 1872.822668] thunderbolt 0000:08:00.0: Max counters: 2 >> [ 1872.822670] thunderbolt 0000:08:00.0: NFC Credits: 0x700000 >> [ 1872.822982] thunderbolt 0000:08:00.0: 3: hotplug: activating pcie devices >> [ 1872.823576] thunderbolt 0000:08:00.0: 0:6 <-> 3:2 (PCI): activating >> [ 1872.823580] thunderbolt 0000:08:00.0: activating path from 0:6 to 3:2 >> [ 1872.823582] thunderbolt 0000:08:00.0: 3:1: Writing hop 1, index 8 >> [ 1872.823583] thunderbolt 0000:08:00.0: 3:1: Hop through port 2 to hop 8 (enabled) >> [ 1872.823585] thunderbolt 0000:08:00.0: 3:1: Weight: 1 Priority: 3 Credits: 16 Drop: 0 >> [ 1872.823587] thunderbolt 0000:08:00.0: 3:1: Counter enabled: 0 Counter index: 2047 >> [ 1872.823589] thunderbolt 0000:08:00.0: 3:1: Flow Control (In/Eg): 1/0 Shared Buffer (In/Eg): 0/0 >> [ 1872.823591] thunderbolt 0000:08:00.0: 3:1: Unknown1: 0x0 Unknown2: 0x0 Unknown3: 0x0 >> [ 1872.823664] thunderbolt 0000:08:00.0: 0:6: Writing hop 0, index 8 >> [ 1872.823666] thunderbolt 0000:08:00.0: 0:6: Hop through port 3 to hop 8 (enabled) >> [ 1872.823667] thunderbolt 0000:08:00.0: 0:6: Weight: 1 Priority: 3 Credits: 7 Drop: 0 >> [ 1872.823669] thunderbolt 0000:08:00.0: 0:6: Counter enabled: 0 Counter index: 2047 >> [ 1872.823670] thunderbolt 0000:08:00.0: 0:6: Flow Control (In/Eg): 1/1 Shared Buffer (In/Eg): 0/0 >> [ 1872.823672] thunderbolt 0000:08:00.0: 0:6: Unknown1: 0x0 Unknown2: 0x0 Unknown3: 0x0 >> [ 1872.823764] thunderbolt 0000:08:00.0: path activation complete >> [ 1872.823765] thunderbolt 0000:08:00.0: activating path from 3:2 to 0:6 >> [ 1872.823767] thunderbolt 0000:08:00.0: 0:3: Writing hop 1, index 8 >> [ 1872.823768] thunderbolt 0000:08:00.0: 0:3: Hop through port 6 to hop 8 (enabled) >> [ 1872.823770] thunderbolt 0000:08:00.0: 0:3: Weight: 1 Priority: 3 Credits: 16 Drop: 0 >> [ 1872.823771] thunderbolt 0000:08:00.0: 0:3: Counter enabled: 0 Counter index: 2047 >> [ 1872.823773] thunderbolt 0000:08:00.0: 0:3: Flow Control (In/Eg): 1/0 Shared Buffer (In/Eg): 0/0 >> [ 1872.823774] thunderbolt 0000:08:00.0: 0:3: Unknown1: 0x0 Unknown2: 0x0 Unknown3: 0x0 >> [ 1872.823864] thunderbolt 0000:08:00.0: 3:2: Writing hop 0, index 8 >> [ 1872.823865] thunderbolt 0000:08:00.0: 3:2: Hop through port 1 to hop 8 (enabled) >> [ 1872.823867] thunderbolt 0000:08:00.0: 3:2: Weight: 1 Priority: 3 Credits: 7 Drop: 0 >> [ 1872.823868] thunderbolt 0000:08:00.0: 3:2: Counter enabled: 0 Counter index: 2047 >> [ 1872.823870] thunderbolt 0000:08:00.0: 3:2: Flow Control (In/Eg): 1/1 Shared Buffer (In/Eg): 0/0 >> [ 1872.823871] thunderbolt 0000:08:00.0: 3:2: Unknown1: 0x0 Unknown2: 0x0 Unknown3: 0x0 >> [ 1872.823963] thunderbolt 0000:08:00.0: path activation complete >> >> >> And the tg3 driver didn't notice anything happened at all during that >> process, so I did an rmmod/modprobe: >> >> [ 1894.412903] tg3 0000:0b:00.0: tg3_abort_hw timed out, TX_MODE_ENABLE will not clear MAC_TX_MODE=ffffffff >> [ 1894.795333] cfg80211: Calling CRDA to update world regulatory domain >> [ 1895.295757] tg3.c:v3.137 (May 11, 2014) >> [ 1895.315622] tg3 0000:0b:00.0: Refused to change power state, currently in D3 >> [ 1895.463145] tg3 0000:0b:00.0: phy probe failed, err -19 >> [ 1895.463485] tg3 0000:0b:00.0: Problem fetching invariants of chip, aborting >> >> Uh oh. >> >> Here's the diff in 'lspci -nnvv' between unplug/replug: >> >> --- before 2014-08-12 01:46:09.313859543 -0700 >> +++ after 2014-08-12 01:46:30.493241976 -0700 >> @@ -814,89 +814,89 @@ >> 07:03.0 PCI bridge [0604]: Intel Corporation Device [8086:156d] (prog-if 00 [Normal decode]) >> Physical Slot: 2 >> 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: 128 bytes >> Bus: primary=07, secondary=09, subordinate=39, sec-latency=0 >> I/O behind bridge: 00003000-00003fff >> Memory behind bridge: c2000000-c5ffffff >> Prefetchable memory behind bridge: 00000000ce000000-00000000d20fffff >> 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: [80] 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=1 PME- >> Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+ >> Address: 00000000fee00378 Data: 0000 >> Capabilities: [ac] Subsystem: Device [2222:1111] >> Capabilities: [c0] Express (v2) Downstream Port (Slot+), MSI 00 >> DevCap: MaxPayload 128 bytes, PhantFunc 0 >> ExtTag+ RBE+ >> 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 #3, Speed 2.5GT/s, Width x4, ASPM L0s L1, Exit Latency L0s <2us, L1 <4us >> ClockPM- Surprise- LLActRep+ BwNot+ >> LnkCtl: ASPM Disabled; Disabled- CommClk+ >> ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- >> - LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive+ BWMgmt+ ABWMgmt- >> + LnkSta: Speed 2.5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt+ ABWMgmt- >> SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug+ Surprise+ >> Slot #3, PowerLimit 0.000W; 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- >> + SltSta: Status: AttnBtn- PowerFlt- MRL- CmdCplt- PresDet- Interlock- >> + Changed: MRL- PresDet+ LinkState+ >> DevCap2: Completion Timeout: Not Supported, TimeoutDis-, LTR+, OBFF Not Supported ARIFwd- >> - DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR+, OBFF Disabled ARIFwd- >> + DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd- >> LnkCtl2: Target Link Speed: 2.5GT/s, EnterCompliance- SpeedDis-, Selectable De-emphasis: -6dB >> Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- >> Compliance De-emphasis: -6dB >> LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1- >> EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- >> Capabilities: [100 v1] Device Serial Number 2e-dc-31-20-d3-f1-0c-00 >> Capabilities: [200 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: [300 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- >> + Status: NegoPending+ InProgress- >> Capabilities: [400 v1] Power Budgeting <?> >> Capabilities: [500 v1] Vendor Specific Information: ID=1234 Rev=1 Len=050 <?> >> Kernel driver in use: pcieport >> >> @@ -1122,193 +1122,16 @@ >> Kernel driver in use: thunderbolt >> Kernel modules: thunderbolt >> >> -09:00.0 PCI bridge [0604]: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge] [8086:1549] (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: 128 bytes >> - Bus: primary=09, secondary=0a, subordinate=0b, sec-latency=0 >> - I/O behind bridge: 00003000-00003fff >> - Memory behind bridge: c2000000-c24fffff >> - Prefetchable memory behind bridge: 00000000ce000000-00000000ce0fffff >> - 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: [80] 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=1 PME- >> - Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+ >> - Address: 00000000fee003f8 Data: 0000 >> - Capabilities: [c0] Express (v2) Upstream Port, MSI 00 >> - DevCap: MaxPayload 128 bytes, PhantFunc 0 >> - ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ SlotPowerLimit 0.000W >> - 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 2.5GT/s, Width x4, ASPM L0s L1, Exit Latency L0s unlimited, L1 unlimited >> - ClockPM+ Surprise- LLActRep- BwNot- >> - LnkCtl: ASPM Disabled; Disabled- CommClk+ >> - ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- >> - LnkSta: Speed 2.5GT/s, Width x4, 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: -3.5dB, EqualizationComplete-, EqualizationPhase1- >> - EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- >> - Capabilities: [100 v1] Device Serial Number 01-00-00-00-00-c9-a0-00 >> - Capabilities: [200 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: [300 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: [400 v1] Power Budgeting <?> >> - Capabilities: [500 v1] Vendor Specific Information: ID=1234 Rev=1 Len=01c <?> >> +09:00.0 PCI bridge [0604]: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge] [8086:1549] (rev ff) (prog-if ff) >> + !!! Unknown header type 7f >> Kernel driver in use: pcieport >> >> -0a:00.0 PCI bridge [0604]: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge] [8086:1549] (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: 128 bytes >> - Bus: primary=0a, secondary=0b, subordinate=0b, sec-latency=0 >> - I/O behind bridge: 00003000-00003fff >> - Memory behind bridge: c2000000-c24fffff >> - Prefetchable memory behind bridge: 00000000ce000000-00000000ce0fffff >> - 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: [80] 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=1 PME- >> - Capabilities: [88] MSI: Enable+ Count=1/1 Maskable- 64bit+ >> - Address: 00000000fee00418 Data: 0000 >> - Capabilities: [c0] Express (v2) Downstream Port (Slot+), MSI 00 >> - DevCap: MaxPayload 128 bytes, PhantFunc 0 >> - ExtTag+ RBE+ >> - 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 x4, ASPM L0s L1, Exit Latency L0s unlimited, L1 unlimited >> - ClockPM- Surprise- LLActRep+ BwNot+ >> - LnkCtl: ASPM Disabled; Disabled- 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 #9, PowerLimit 0.000W; 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- >> - DevCap2: Completion Timeout: Not Supported, 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-, Selectable De-emphasis: -3.5dB >> - Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- >> - Compliance De-emphasis: -6dB >> - LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete-, EqualizationPhase1- >> - EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- >> - Capabilities: [100 v1] Device Serial Number 01-00-00-00-00-c9-a0-00 >> - Capabilities: [200 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: [300 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: [400 v1] Power Budgeting <?> >> - Capabilities: [500 v1] Vendor Specific Information: ID=1234 Rev=1 Len=01c <?> >> +0a:00.0 PCI bridge [0604]: Intel Corporation DSL3510 Thunderbolt Controller [Cactus Ridge] [8086:1549] (rev ff) (prog-if ff) >> + !!! Unknown header type 7f >> Kernel driver in use: pcieport >> >> -0b:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM57762 Gigabit Ethernet PCIe [14e4:1682] >> - Subsystem: Apple Inc. Device [106b:00f6] >> - 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: 128 bytes >> - Interrupt: pin A routed to IRQ 16 >> - Region 0: Memory at ce000000 (64-bit, prefetchable) [size=64K] >> - Region 2: Memory at ce010000 (64-bit, prefetchable) [size=64K] >> - Expansion ROM at c2000000 [disabled] [size=64K] >> - Capabilities: [48] 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=1 PME- >> - Capabilities: [50] Vital Product Data >> - Product Name: Thunderbolt Ethernet >> - Read-only fields: >> - [PN] Part number: BCM957762 >> - [EC] Engineering changes: 106679-15 >> - [SN] Serial number: 0123456789 >> - [MN] Manufacture ID: 31 34 65 34 >> - [RV] Reserved: checksum good, 53 byte(s) reserved >> - Read/write fields: >> - [YA] Asset tag: XYZ01234567 >> - [RW] Read-write area: 107 byte(s) free >> - End >> - Capabilities: [58] MSI: Enable- Count=1/8 Maskable- 64bit+ >> - Address: 0000000000000000 Data: 0000 >> - Capabilities: [a0] MSI-X: Enable+ Count=6 Masked- >> - Vector table: BAR=2 offset=00000000 >> - PBA: BAR=2 offset=00000120 >> - Capabilities: [ac] Express (v2) Endpoint, MSI 00 >> - DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, 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, Exit Latency L0s <2us, L1 <64us >> - ClockPM+ Surprise- LLActRep- BwNot- >> - LnkCtl: ASPM Disableparentd; RCB 64 bytes Disabled- CommClk+ >> - ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt- >> - LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- >> - DevCap2: Completion Timeout: Range ABCD, 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: -3.5dB, EqualizationComplete-, EqualizationPhase1- >> - EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- >> - 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: [13c v1] Device Serial Number 00-00-a8-20-66-3c-64-4a >> - Capabilities: [150 v1] Power Budgeting <?> >> - Capabilities: [160 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: [1b0 v1] Latency Tolerance Reporting >> - Max snoop latency: 0ns >> - Max no snoop latency: 0ns >> +0b:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM57762 Gigabit Ethernet PCIe [14e4:1682] (rev ff) (prog-if ff) >> + !!! Unknown header type 7f >> Kernel driver in use: tg3 >> Kernel modules: tg3 >> >> >> So now I've got 3 confused devices that have fallen off the bus. >> >> If I ask the surviving parent bridge (07:03.0) to rescan for devices via >> sysfs, this is what I get in dmesg: >> >> [ 3985.833685] pcieport 0000:09:00.0: bridge configuration invalid ([bus ff-ff]), reconfiguring >> [ 3985.833739] pcieport 0000:07:00.0: bridge window [io 0x1000-0x0fff] to [bus 08] add_size 1000 >> [ 3985.833743] pcieport 0000:07:00.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 08] add_size 200000 >> [ 3985.833767] pcieport 0000:07:04.0: bridge window [io 0x1000-0x0fff] to [bus 3a] add_size 1000 >> [ 3985.833770] pcieport 0000:07:04.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 3a] add_size 200000 >> [ 3985.833771] pcieport 0000:07:04.0: bridge window [mem 0x00100000-0x000fffff] to [bus 3a] add_size 200000 >> [ 3985.833784] pcieport 0000:07:06.0: bridge window [io 0x1000-0x0fff] to [bus 6c] add_size 1000 >> [ 3985.833786] pcieport 0000:07:06.0: bridge window [mem 0x00100000-0x000fffff 64bit pref] to [bus 6c] add_size 200000 >> [ 3985.833788] pcieport 0000:07:06.0: bridge window [mem 0x00100000-0x000fffff] to [bus 6c] add_size 200000 >> [ 3985.833792] pcieport 0000:07:00.0: res[15]=[mem 0x00100000-0x000fffff 64bit pref] get_res_add_size add_size 200000 >> [ 3985.833794] pcieport 0000:07:04.0: res[14]=[mem 0x00100000-0x000fffff] get_res_add_size add_size 200000 >> [ 3985.833796] pcieport 0000:07:04.0: res[15]=[mem 0x00100000-0x000fffff 64bit pref] get_res_add_size add_size 200000 >> [ 3985.833797] pcieport 0000:07:06.0: res[14]=[mem 0x00100000-0x000fffff] get_res_add_size add_size 200000 >> [ 3985.833799] pcieport 0000:07:06.0: res[15]=[mem 0x00100000-0x000fffff 64bit pref] get_res_add_size add_size 200000 >> [ 3985.833801] pcieport 0000:07:00.0: res[13]=[io 0x1000-0x0fff] get_res_add_size add_size 1000 >> [ 3985.833802] pcieport 0000:07:04.0: res[13]=[io 0x1000-0x0fff] get_res_add_size add_size 1000 >> [ 3985.833804] pcieport 0000:07:06.0: res[13]=[io 0x1000-0x0fff] get_res_add_size add_size 1000 >> [ 3985.833810] pcieport 0000:07:00.0: BAR 15: no space for [mem size 0x00200000 64bit pref] >> [ 3985.833811] pcieport 0000:07:00.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] >> [ 3985.833814] pcieport 0000:07:04.0: BAR 14: no space for [mem size 0x00200000] >> [ 3985.833815] pcieport 0000:07:04.0: BAR 14: failed to assign [mem size 0x00200000] >> [ 3985.833818] pcieport 0000:07:04.0: BAR 15: no space for [mem size 0x00200000 64bit pref] >> [ 3985.833820] pcieport 0000:07:04.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] >> [ 3985.833821] pcieport 0000:07:06.0: BAR 14: no space for [mem size 0x00200000] >> [ 3985.833823] pcieport 0000:07:06.0: BAR 14: failed to assign [mem size 0x00200000] >> [ 3985.833825] pcieport 0000:07:06.0: BAR 15: no space for [mem size 0x00200000 64bit pref] >> [ 3985.833827] pcieport 0000:07:06.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] >> [ 3985.833829] pcieport 0000:07:00.0: BAR 13: no space for [io size 0x1000] >> [ 3985.833831] pcieport 0000:07:00.0: BAR 13: failed to assign [io size 0x1000] >> [ 3985.833832] pcieport 0000:07:04.0: BAR 13: no space for [io size 0x1000] >> [ 3985.833834] pcieport 0000:07:04.0: BAR 13: failed to assign [io size 0x1000] >> [ 3985.833835] pcieport 0000:07:06.0: BAR 13: no space for [io size 0x1000] >> [ 3985.833837] pcieport 0000:07:06.0: BAR 13: failed to assign [io size 0x1000] >> [ 3985.833840] pcieport 0000:07:06.0: BAR 14: no space for [mem size 0x00200000] >> [ 3985.833841] pcieport 0000:07:06.0: BAR 14: failed to assign [mem size 0x00200000] >> [ 3985.833844] pcieport 0000:07:06.0: BAR 15: no space for [mem size 0x00200000 64bit pref] >> [ 3985.833845] pcieport 0000:07:06.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] >> [ 3985.833847] pcieport 0000:07:06.0: BAR 13: no space for [io size 0x1000] >> [ 3985.833848] pcieport 0000:07:06.0: BAR 13: failed to assign [io size 0x1000] >> [ 3985.833850] pcieport 0000:07:04.0: BAR 14: no space for [mem size 0x00200000] >> [ 3985.833852] pcieport 0000:07:04.0: BAR 14: failed to assign [mem size 0x00200000] >> [ 3985.833854] pcieport 0000:07:04.0: BAR 15: no space for [mem size 0x00200000 64bit pref] >> [ 3985.833856] pcieport 0000:07:04.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] >> [ 3985.833858] pcieport 0000:07:04.0: BAR 13: no space for [io size 0x1000] >> [ 3985.833859] pcieport 0000:07:04.0: BAR 13: failed to assign [io size 0x1000] >> [ 3985.833862] pcieport 0000:07:00.0: BAR 15: no space for [mem size 0x00200000 64bit pref] >> [ 3985.833863] pcieport 0000:07:00.0: BAR 15: failed to assign [mem size 0x00200000 64bit pref] >> [ 3985.833865] pcieport 0000:07:00.0: BAR 13: no space for [io size 0x1000] >> [ 3985.833866] pcieport 0000:07:00.0: BAR 13: failed to assign [io size 0x1000] >> >> Hrm. Any idea what to do here? I also tried some 'setpci' hackery on the >> surviving bridge with a secondary bus reset and a link retrain. Neither >> seems to have any effect. >> >> - Steven > > Are you booting with the device plugged in at boot? The driver does > not yet try to discover paths which were setup by the firmeware and we > do not do everything we should if a boot time device is unplugged. > Could you try to replug it a second time? If that does not work try > booting without the device attached and add the acpi_osi=Darwin to the > kernel command line. > > Andreas Good point. I tried leaving it unplugged until the system booted but then *nothing* happened with the thunderbolt driver. No messages at boot or anything. Unloading/reloading the driver, still no messages. Hrmph. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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