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Date: Tue, 12 Aug 2014 02:01:38 -0700
From: Steven Noonan <steven@...inklabs.net>
To: Linux Kernel mailing List <linux-kernel@...r.kernel.org>,
Andreas Noever <andreas.noever@...il.com>
Subject: Thunderbolt driver hotplug not working correctly
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
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