Exactly, that’s the whole point.
There are no root ports appearing in lspci output.
They will appear only after pci_rescan_bus (scanning the root port)
And even if they don’t appear, SPDK script does something with it, probably I think vfio.
Regards,
Oza.
From: SPDK [mailto:spdk-bounces@lists.01.org] On Behalf Of Harris, James R
Sent: Thursday, August 31, 2017 12:09 AM
To: Oza Pawandeep
Cc: Storage Performance Development Kit
Subject: Re: [SPDK] PCI hotplug and SPDK
Hi Oza,
Where are the root ports associated with these empty slots? I only see three root ports in your lspci output – two for the NVMe devices, another for the multi-function Ethernet device.
-Jim
From: Oza Pawandeep <oza.pawandeep@gmail.com>
Date: Wednesday, August 30, 2017 at 11:17 AM
To: James Harris <james.r.harris@intel.com>
Cc: Storage Performance Development Kit <spdk@lists.01.org>
Subject: Re: [SPDK] PCI hotplug and SPDK
Hi Jim,
Ok, so we have 4 PCIe slots.
I have kept 2 slots with NVMe driver and 2 slots empty.
Regards,
Oza.
On Wed, Aug 30, 2017 at 9:00 PM, Harris, James R <james.r.harris@intel.com> wrote:
Hi Oza,
I am confused – why do the NVMe devices show up in your lspci output if they are not attached?
-Jim
From: SPDK <spdk-bounces@lists.01.org> on behalf of Oza Oza <oza.oza@broadcom.com>
Reply-To: Storage Performance Development Kit <spdk@lists.01.org>
Date: Wednesday, August 30, 2017 at 8:20 AM
To: Storage Performance Development Kit <spdk@lists.01.org>
Cc: "oza.pawandeep@gmail.com" <oza.pawandeep@gmail.com>
Subject: Re: [SPDK] PCI hotplug and SPDK
root@bcm958742k:~# lspci -vvvx
0001:00:00.0 PCI bridge: Broadcom Corporation Device 0000 (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
Interrupt: pin A routed to IRQ 378
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00000000-00000fff
Memory behind bridge: 00000000-000fffff
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: [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: [ac] Express (v2) Root Port (Slot-), MSI 00
DevCap: MaxPayload 256 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 8GT/s, Width x4, ASPM L0s L1, Exit Latency L0s <2us, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot+ ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible+
RootCap: CRSVisible+
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Via WAKE# ARIFwd+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd+
LnkCtl2: Target Link Speed: 8GT/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: [180 v1] Vendor Specific Information: ID=0000 Rev=0 Len=028 <?>
Capabilities: [240 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
PortCommonModeRestoreTime=8us PortTPowerOnTime=10us
Capabilities: [300 v1] #19
lspci: Unable to load libkmod resources: error -12
00: e4 14 00 00 06 00 10 00 00 00 04 06 00 00 01 00
10: 00 00 00 00 00 00 00 00 00 01 01 00 00 00 00 00
20: 00 00 00 00 f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 48 00 00 00 00 00 00 00 7a 01 00 00
0001:01:00.0 Non-Volatile memory controller: Intel Corporation PCIe Data Center SSD (rev 01) (prog-if 02 [NVM Express])
Subsystem: Intel Corporation SSD 750 Series [Add-in Card]
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 378
Region 0: Memory at 480010000 (64-bit, non-prefetchable) [size=16K]
[virtual] Expansion ROM at 480000000 [disabled] [size=64K]
Capabilities: [40] 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: [50] MSI-X: Enable+ Count=32 Masked-
Vector table: BAR=0 offset=00002000
PBA: BAR=0 offset=00003000
Capabilities: [60] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 <4us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L0s L1, Exit Latency L0s <4us, L1 <4us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s, Width x4, 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: 8GT/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: [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: [150 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: [180 v1] Power Budgeting <?>
Capabilities: [190 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [270 v1] Device Serial Number 55-cd-2e-41-4d-25-b3-9e
Capabilities: [2a0 v1] #19
Kernel driver in use: nvme
00: 86 80 53 09 06 04 10 00 01 02 08 01 00 00 00 00
10: 04 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 0d 37
30: 00 00 00 00 40 00 00 00 00 00 00 00 7a 01 00 00
0007:00:00.0 PCI bridge: Broadcom Corporation Device 0000 (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
Interrupt: pin A routed to IRQ 380
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00000000-00000fff
Memory behind bridge: 00000000-000fffff
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: [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: [ac] Express (v2) Root Port (Slot-), MSI 00
DevCap: MaxPayload 256 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 8GT/s, Width x4, ASPM L0s L1, Exit Latency L0s <2us, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot+ ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s, Width x1, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt+
RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna- CRSVisible+
RootCap: CRSVisible+
RootSta: PME ReqID 0000, PMEStatus- PMEPending-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Via WAKE# ARIFwd+
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd+
LnkCtl2: Target Link Speed: 8GT/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: [180 v1] Vendor Specific Information: ID=0000 Rev=0 Len=028 <?>
Capabilities: [240 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
PortCommonModeRestoreTime=8us PortTPowerOnTime=10us
Capabilities: [300 v1] #19
00: e4 14 00 00 06 00 10 00 00 00 04 06 00 00 01 00
10: 00 00 00 00 00 00 00 00 00 01 01 00 00 00 00 00
20: 00 00 00 00 f1 ff 01 00 00 00 00 00 00 00 00 00
30: 00 00 00 00 48 00 00 00 00 00 00 00 7c 01 00 00
0007:01:00.0 Non-Volatile memory controller: Intel Corporation PCIe Data Center SSD (rev 01) (prog-if 02 [NVM Express])
Subsystem: Intel Corporation SSD 750 Series [Add-in Card]
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 380
Region 0: Memory at 780010000 (64-bit, non-prefetchable) [size=16K]
[virtual] Expansion ROM at 780000000 [disabled] [size=64K]
Capabilities: [40] 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: [50] MSI-X: Enable+ Count=32 Masked-
Vector table: BAR=0 offset=00002000
PBA: BAR=0 offset=00003000
Capabilities: [60] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 <4us
ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L0s L1, Exit Latency L0s <4us, L1 <4us
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/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: 8GT/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: [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: [150 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: [180 v1] Power Budgeting <?>
Capabilities: [190 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [270 v1] Device Serial Number 55-cd-2e-41-4d-25-bf-ba
Capabilities: [2a0 v1] #19
Kernel driver in use: nvme
00: 86 80 53 09 06 04 10 00 01 02 08 01 00 00 00 00
10: 04 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00
20: 00 00 00 00 00 00 00 00 00 00 00 00 86 80 0d 37
30: 00 00 00 00 40 00 00 00 00 00 00 00 7c 01 00 00
0008:00:00.0 PCI bridge: Broadcom Corporation Device 16f0 (rev 01) (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-
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 00000000-00000fff
Memory behind bridge: fff00000-000fffff
Prefetchable memory behind bridge: 0000000010000000-00000000104fffff
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: [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: [58] #00 [0000]
00: e4 14 f0 16 00 00 10 00 01 00 00 02 00 00 01 00
10: 00 00 00 00 00 00 00 00 00 01 01 00 00 00 00 00
20: f0 ff 00 00 01 10 41 10 00 00 00 00 00 00 00 00
30: 00 00 00 00 48 00 00 00 00 00 00 00 00 00 00 00
0008:01:00.0 Ethernet controller: Broadcom Corporation Device 16f0 (rev 01)
Subsystem: Broadcom Corporation Device 16f0
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+
Region 0: Memory at 10400000 (64-bit, prefetchable) [disabled] [size=64K]
Region 2: Memory at 10000000 (64-bit, prefetchable) [disabled] [size=1M]
Region 4: Memory at 10440000 (64-bit, prefetchable) [disabled] [size=4K]
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: [58] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [a0] MSI-X: Enable- Count=148 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00001000
Capabilities: [ac] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset-
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 <2us, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; 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: 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: [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 00-10-18-ff-fe-ad-05-00
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: [180 v1] Vendor Specific Information: ID=0000 Rev=0 Len=028 <?>
Capabilities: [1b0 v1] Latency Tolerance Reporting
Max snoop latency: 0ns
Max no snoop latency: 0ns
Capabilities: [1b8 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 1
ARICtl: MFVC- ACS-, Function Group: 0
00: e4 14 f0 16 00 00 18 00 01 00 00 02 00 00 80 00
10: 0c 00 40 10 00 00 00 00 0c 00 00 10 00 00 00 00
20: 0c 00 44 10 00 00 00 00 00 00 00 00 e4 14 f0 16
30: 00 00 00 00 48 00 00 00 00 00 00 00 00 00 00 00
0008:01:00.1 Ethernet controller: Broadcom Corporation Device 16f0 (rev 01)
Subsystem: Broadcom Corporation Device 16f0
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+
Region 0: Memory at 10410000 (64-bit, prefetchable) [disabled] [size=64K]
Region 2: Memory at 10100000 (64-bit, prefetchable) [disabled] [size=1M]
Region 4: Memory at 10441000 (64-bit, prefetchable) [disabled] [size=4K]
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: [58] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [a0] MSI-X: Enable- Count=148 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00001000
Capabilities: [ac] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset-
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 <2us, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; 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
LnkSta2: Current De-emphasis Level: -6dB, 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 00-10-18-ff-fe-ad-05-01
Capabilities: [150 v1] Power Budgeting <?>
Capabilities: [180 v1] Vendor Specific Information: ID=0000 Rev=0 Len=028 <?>
Capabilities: [1b8 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 2
ARICtl: MFVC- ACS-, Function Group: 0
00: e4 14 f0 16 00 00 18 00 01 00 00 02 00 00 80 00
10: 0c 00 41 10 00 00 00 00 0c 00 10 10 00 00 00 00
20: 0c 10 44 10 00 00 00 00 00 00 00 00 e4 14 f0 16
30: 00 00 00 00 48 00 00 00 00 00 00 00 00 00 00 00
0008:01:00.2 Ethernet controller: Broadcom Corporation Device 16f0 (rev 01)
Subsystem: Broadcom Corporation Device 16f0
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+
Region 0: Memory at 10420000 (64-bit, prefetchable) [disabled] [size=64K]
Region 2: Memory at 10200000 (64-bit, prefetchable) [disabled] [size=1M]
Region 4: Memory at 10442000 (64-bit, prefetchable) [disabled] [size=4K]
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: [58] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [a0] MSI-X: Enable- Count=148 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00001000
Capabilities: [ac] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset-
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 <2us, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; 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
LnkSta2: Current De-emphasis Level: -6dB, 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 00-10-18-ff-fe-ad-05-02
Capabilities: [150 v1] Power Budgeting <?>
Capabilities: [180 v1] Vendor Specific Information: ID=0000 Rev=0 Len=028 <?>
Capabilities: [1b8 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 3
ARICtl: MFVC- ACS-, Function Group: 0
00: e4 14 f0 16 00 00 18 00 01 00 00 02 00 00 80 00
10: 0c 00 42 10 00 00 00 00 0c 00 20 10 00 00 00 00
20: 0c 20 44 10 00 00 00 00 00 00 00 00 e4 14 f0 16
30: 00 00 00 00 48 00 00 00 00 00 00 00 00 00 00 00
0008:01:00.3 Ethernet controller: Broadcom Corporation Device 16f0 (rev 01)
Subsystem: Broadcom Corporation Device 16f0
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+
Region 0: Memory at 10430000 (64-bit, prefetchable) [disabled] [size=64K]
Region 2: Memory at 10300000 (64-bit, prefetchable) [disabled] [size=1M]
Region 4: Memory at 10443000 (64-bit, prefetchable) [disabled] [size=4K]
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: [58] MSI: Enable- Count=1/8 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [a0] MSI-X: Enable- Count=148 Masked-
Vector table: BAR=4 offset=00000000
PBA: BAR=4 offset=00001000
Capabilities: [ac] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 128 bytes, PhantFunc 0, Latency L0s <4us, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W
DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr+ NoSnoop+ FLReset-
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 <2us, L1 <4us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; 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
LnkSta2: Current De-emphasis Level: -6dB, 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 00-10-18-ff-fe-ad-05-03
Capabilities: [150 v1] Power Budgeting <?>
Capabilities: [180 v1] Vendor Specific Information: ID=0000 Rev=0 Len=028 <?>
Capabilities: [1b8 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 4
ARICtl: MFVC- ACS-, Function Group: 0
00: e4 14 f0 16 00 00 18 00 01 00 00 02 00 00 80 00
10: 0c 00 43 10 00 00 00 00 0c 00 30 10 00 00 00 00
20: 0c 30 44 10 00 00 00 00 00 00 00 00 e4 14 f0 16
30: 00 00 00 00 48 00 00 00 00 00 00 00 00 00 00 00
From: Oza Oza [mailto:oza.oza@broadcom.com]
Sent: Wednesday, August 30, 2017 8:41 PM
To: 'Storage Performance Development Kit'
Cc: 'oza.pawandeep@gmail.com'
Subject: RE: [SPDK] PCI hotplug and SPDK
root@bcm958742k:~# lspci
0001:00:00.0 PCI bridge: Broadcom Corporation Device 0000
0001:01:00.0 Non-Volatile memory controller: Intel Corporation PCIe Data Center SSD (rev 01)
0008:00:00.0 PCI bridge: Broadcom Corporation Device 16f0 (rev 01)
0008:01:00.0 Ethernet controller: Broadcom Corporation Device 16f0 (rev 01)
0008:01:00.1 Ethernet controller: Broadcom Corporation Device 16f0 (rev 01)
0008:01:00.2 Ethernet controller: Broadcom Corporation Device 16f0 (rev 01)
0008:01:00.3 Ethernet controller: Broadcom Corporation Device 16f0 (rev 01)
root@bcm958742k:~# /usr/share/spdk/scripts/setup.sh
0001:01:00.0 (8086 0953): nvme -> vfio-pci
grep: /usr/share/spdk/scripts/../include/spdk/pci_ids.h: No such[ 1520.258498] pci 0008:00:00.0: PCI bridge to [bus 01]
file or directory
[ 1520.267436] pci 0008:00:00.0: bridge window [mem 0x10000000-0x104fffff 64bit pref]
[ 1520.277225] pci 0000:00:00.0: ignoring class 0x020000 (doesn't match header type 01) >> it is looking to unbind on empty slot as well.
[ 1520.285324] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 1535.911738] Bad mode in Error handler detected on CPU7, code 0xbf000002 -- SError
[ 1535.919460] Internal error: Oops - bad mode: 0 [#1] SMP
[ 1535.924850] Modules linked in:
[ 1535.928001] CPU: 7 PID: 2108 Comm: lighttpd Not tainted 4.12.0-01624-gbbd4086-dirty #97
[ 1535.936257] Hardware name: Stingray Combo SVK w/PCIe IOMMU (BCM958742K) (DT)
[ 1535.943527] task: ffff80a1642ce000 task.stack: ffff80a162790000
[ 1535.949634] PC is at 0xffff8baadca0
[ 1535.953230] LR is at 0x40aca8
[ 1535.956290] pc : [<0000ffff8baadca0>] lr : [<000000000040aca8>] pstate: 80000000
[ 1535.963919] sp : 0000ffffca61a970
[ 1535.967337] x29: 0000ffffca61a970 x28: 0000000000000000
[ 1535.972816] x27: 00000000283a9a00 x26: 0000000000000000
[ 1535.978296] x25: 000000000042a3a8 x24: 000000000042a3a0
[ 1535.983775] x23: 0000000000429000 x22: 000000000042a2b8
[ 1535.989254] x21: 000000000042a000 x20: 0000000058edd444
[ 1535.994734] x19: 00000000283a9010 x18: 0000000000000014
[ 1536.000213] x17: 0000ffff8baada88 x16: 0000000000442c08
[ 1536.005693] x15: 00002162cc000000 x14: 000bcd3d80000000
[ 1536.011173] x13: 00000001f4000000 x12: 0000000000000017
[ 1536.016653] x11: 0000000000061bf7 x10: 0000000058edd444
[ 1536.022131] x9 : 001dcd6500000000 x8 : 0000000000000016
[ 1536.027611] x7 : 000000000000dfda x6 : 0000ffff8bdc5000
[ 1536.033090] x5 : 0000000000000008 x4 : 0000000000000000
[ 1536.038570] x3 : 00000000000003e8 x2 : 0000000000000401
[ 1536.044049] x1 : 00000000283bd050 x0 : 0000000000000000
[ 1536.049529] Process lighttpd (pid: 2108, stack limit = 0xffff80a162790000)
Please find attached status script.
Regards,
Oza.
From: SPDK [mailto:spdk-bounces@lists.01.org] On Behalf Of Harris, James R
Sent: Tuesday, August 29, 2017 11:30 PM
To: Storage Performance Development Kit
Subject: Re: [SPDK] PCI hotplug and SPDK
So to clarify, you have your system booted with no NVMe endpoint connected, and then when you run the SPDK setup.sh script, you see all of these kernel messages from trying to bind vfio to PCIe devices and system eventually crashes?
If so, we need to determine what PCIe devices setup.sh is trying to bind to vfio. It should only be trying to bind NVMe devices but if there is no NVMe device connected then it shouldn’t be trying to bind anything.
Can you send lspci –vvvx output from your system before running setup.sh?
Thanks,
-Jim
From: SPDK <spdk-bounces@lists.01.org> on behalf of Oza Oza <oza.oza@broadcom.com>
Reply-To: Storage Performance Development Kit <spdk@lists.01.org>
Date: Tuesday, August 29, 2017 at 9:45 AM
To: Storage Performance Development Kit <spdk@lists.01.org>
Subject: Re: [SPDK] PCI hotplug and SPDK
In my opinion, this has nothing to do with platform. Though our platform is ARMv8.
(but, I can not test on any other, because we don’t know how the kernel driver is written)
If kernel driver supports hotplug, which means they are allowing pci_create_root_bus irrespective of whether EP is plugged or not.
In other words. Following APIs are never called.
pci_stop_root_bus(bus);
pci_remove_root_bus(bus);
and in that case, if PCIe slots is empty, running SPDK resulting in stalls. (10-15 seconds) followed by crash.
Regards,
Oza.
From: SPDK [mailto:spdk-bounces@lists.01.org] On Behalf Of Harris, James R
Sent: Tuesday, August 29, 2017 6:20 PM
To: Storage Performance Development Kit
Subject: Re: [SPDK] PCI hotplug and SPDK
Hi Oza,
Do you see this issue only on your armv8 platform or do you also see it on amd64?
-Jim
From: SPDK <spdk-bounces@lists.01.org> on behalf of Oza Oza <oza.oza@broadcom.com>
Reply-To: Storage Performance Development Kit <spdk@lists.01.org>
Date: Tuesday, August 29, 2017 at 1:51 AM
To: Storage Performance Development Kit <spdk@lists.01.org>
Subject: Re: [SPDK] PCI hotplug and SPDK
Sorry If I was unclear.
I am not talking about hotplug feature of SPDK.
Ø PCI hotplug feature is implemented in kernel driver and working fine.
Ø But the moment I run SPDK and try to bind vfio driver it stalls completely.
The reason is: kernel driver will not remove the root bus (when PCIe endpoint is not connected, during boot-time)
So SPDK tries to bind driver thinking host bridge is there.
Without PCI hotplug host bridge will not be there because of following API call in kernel driver.
pci_stop_root_bus(bus);
pci_remove_root_bus(bus);
Ø since now we allow host bridge creation (API: pci_create_root_bus) irrespective of EP is connected or not.
And then if I run SPDK (with no Endpoint connected/Empty slot) I get stalls.
Regards,
Oza.
From: SPDK [mailto:spdk-bounces@lists.01.org] On Behalf Of Chang, Cunyin
Sent: Tuesday, August 29, 2017 2:14 PM
To: Storage Performance Development Kit
Subject: Re: [SPDK] PCI hotplug and SPDK
Hi Oza,
Could you please provide some details steps to reproduce the issue?
SPDK take in charge for hotplug only after you bind the device to uio or vfio driver,
so for the new insert deivce, it will handled by kernel driver first.
-Cunyin
From: SPDK [mailto:spdk-bounces@lists.01.org] On Behalf Of Oza Oza
Sent: Tuesday, August 29, 2017 4:22 PM
To: Storage Performance Development Kit <spdk@lists.01.org>
Subject: [SPDK] PCI hotplug and SPDK
Hi All,
PCI hotplug support; requires creation of root bus and probe to go ahead with all PCIe configuration.
Which means following APIs ae not called.
pci_stop_root_bus(bus);
pci_remove_root_bus(bus);
And then If I run SPDK, It makes system crash with following info.
Note: if the disk is connected then SPDK is fine.
Otherwise it stalls the system with following crash.
root@bcm958742k:~# echo 2048 > /proc/sys/vm/nr_hugepages; /usr/share/spdk/scripts/setup.sh
grep: /usr/share/spdk/scripts/../include/spdk/pci_ids.h: No such[ 34.621325] pci 0008:00:00.0: PCI bridge to [bus 01]
file or directory
[ 34.640586] pci 0000:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 50.267056] pci 0000:00:00.0: PCI bridge to [bus 01]
[ 50.272337] pci 0001:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 65.898762] pci 0001:00:00.0: PCI bridge to [bus 01]
[ 65.904015] pci 0006:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 81.530437] pci 0006:00:00.0: PCI bridge to [bus 01]
[ 81.535680] pci 0007:00:00.0: bridge configuration invalid ([bus 00-00]), reconfiguring
[ 97.162103] pci 0007:00:00.0: PCI bridge to [bus 01]
[ 97.167255] Bad mode in Error handler detected on CPU6, code 0xbf000002 -- SError
[ 97.174974] Internal error: Oops - bad mode: 0 [#1] SMP
[ 97.180364] Modules linked in:
[ 97.183515] CPU: 6 PID: 2104 Comm: bash Not tainted 4.12.0-01560-gc83093d-dirty #89
[ 97.191413] Hardware name: Stingray Combo SVK w/PCIe IOMMU (BCM958742K) (DT)
[ 97.198683] task: ffff80a163a40000 task.stack: ffff80a1612b4000
[ 97.204790] PC is at 0xffff7cbdfba8
[ 97.208387] LR is at 0xffff7cb8f288
[ 97.211983] pc : [<0000ffff7cbdfba8>] lr : [<0000ffff7cb8f288>] pstate: 20000000
[ 97.219612] sp : 0000fffffe564040
[ 97.223029] x29: 0000fffffe564040 x28: 000000001054ce60
[ 97.228509] x27: 0000000000000000 x26: 00000000004e2000
[ 97.233989] x25: 00000000004e5000 x24: 0000000000000002
[ 97.239468] x23: 0000ffff7cc63638 x22: 0000000000000002
[ 97.244947] x21: 0000ffff7cc67480 x20: 000000001054db10
[ 97.250427] x19: 0000000000000002 x18: 0000000000000000
[ 97.255906] x17: 00000000004daac8 x16: 0000000000000000
[ 97.261386] x15: 0000000000000096 x14: 0000000000000000
[ 97.266865] x13: 0000000000000000 x12: 0000000000000000
[ 97.272344] x11: 0000000000000020 x10: 0101010101010101
[ 97.277824] x9 : ffffff80ffffffc8 x8 : 0000000000000040
[ 97.283303] x7 : 0000000000000001 x6 : 0000ffff7cc669f0
[ 97.288782] x5 : 0000000000015551 x4 : 0000000000000888
[ 97.294261] x3 : 0000000000000000 x2 : 0000000000000002
[ 97.299741] x1 : 000000001054db10 x0 : 0000000000000002
[ 97.305220] Process bash (pid: 2104, stack limit = 0xffff80a1612b4000)
[ 97.311960] ---[ end trace a1f48abe30820241 ]---
Regards,
Oza.