* Samsung PM991 NVME does not work on LX2160A system (Solidrun Honeycomb)
@ 2023-03-20 11:58 Marcin Juszkiewicz
2023-03-20 16:11 ` Bjorn Helgaas
0 siblings, 1 reply; 3+ messages in thread
From: Marcin Juszkiewicz @ 2023-03-20 11:58 UTC (permalink / raw)
To: linux-pci
Cc: Minghuan Lian, Mingkai Hu, Roy Zang, linux-arm-kernel, Jon Nettleton
During last week I had to shuffle some of my NVME drives between
systems. One of those systems is Solidrun Honeycomb which uses
LX2160A SoC.
The problem is that I am unable to use Samsung PM991 NVME there.
It is 2242 card so probably also DRAMless. Kernel says:
nvme 0004:01:00.0: Adding to iommu group 4
nvme nvme0: pci function 0004:01:00.0
nvme nvme0: missing or invalid SUBNQN field.
nvme nvme0: 1/0/0 default/read/poll queues
nvme 0004:01:00.0: VPD access failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update
The SUBNQN part can be handled by adding quirk in nvme/core.c file
but that does not change situation. It also does not appear when
used in x86-64 system.
Card is visible but only as PCIe device, no NVME block devices.
lspci says:
0004:01:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller 980 [144d:a809] (prog-if 02 [NVM Express])
Subsystem: Samsung Electronics Co Ltd NVMe SSD Controller 980 [144d:a801]
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 106
NUMA node: 0
IOMMU group: 1
Region 0: Memory at a400000000 (64-bit, non-prefetchable) [size=16K]
Expansion ROM at a040000000 [disabled] [size=128K]
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: Enable- Count=1/32 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 15.000W
DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L1 <64us
ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s (ok), Width x4 (ok)
TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR+
10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
FRS+ TPHComp- ExtTPHComp-
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled,
AtomicOpsCtl: ReqEn-
LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS+
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-
Retimer- 2Retimers- CrosslinkRes: unsupported
Capabilities: [b0] MSI-X: Enable+ Count=13 Masked-
Vector table: BAR=0 offset=00003000
PBA: BAR=0 offset=00002000
Capabilities: [d0] Vital Product Data
Not readable
Capabilities: [100 v2] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
MultHdrRecCap+ MultHdrRecEn- TLPPfxPres- HdrLogCap-
HeaderLog: 00000000 00000000 00000000 00000000
Capabilities: [148 v1] Device Serial Number 00-00-00-00-00-00-00-00
Capabilities: [158 v1] Power Budgeting <?>
Capabilities: [168 v1] Secondary PCI Express
LnkCtl3: LnkEquIntrruptEn- PerformEqu-
LaneErrStat: 0
Capabilities: [188 v1] Latency Tolerance Reporting
Max snoop latency: 0ns
Max no snoop latency: 0ns
Capabilities: [190 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
PortCommonModeRestoreTime=10us PortTPowerOnTime=10us
L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-
T_CommonMode=0us LTR1.2_Threshold=0ns
L1SubCtl2: T_PwrOn=10us
Capabilities: [1a0 v1] Dynamic Power Allocation <?>
Capabilities: [1d0 v1] Readiness Time Reporting <?>
Capabilities: [1dc v1] Vendor Specific Information: ID=0002 Rev=3 Len=100 <?>
Capabilities: [2dc v1] Vendor Specific Information: ID=0001 Rev=1 Len=038 <?>
Capabilities: [314 v1] Precision Time Measurement
PTMCap: Requester:+ Responder:- Root:-
PTMClockGranularity: Unimplemented
PTMControl: Enabled:- RootSelected:-
PTMEffectiveGranularity: Unknown
Capabilities: [320 v1] Vendor Specific Information: ID=0003 Rev=1 Len=054 <?>
Kernel driver in use: nvme
Kernel modules: nvme
I am able to use it without issues on my AMD Ryzen 3 3600 system:
pci 0000:23:00.0: [144d:a809] type 00 class 0x010802
pci 0000:23:00.0: reg 0x10: [mem 0xfc900000-0xfc903fff 64bit]
pci_bus 0000:23: resource 1 [mem 0xfc900000-0xfc9fffff]
pci 0000:23:00.0: Adding to iommu group 24
nvme nvme2: pci function 0000:23:00.0
nvme nvme2: Shutdown timeout set to 8 seconds
nvme nvme2: allocated 64 MiB host memory buffer.
nvme nvme2: 12/0/0 default/read/poll queues
nvme2n1: p1 p2 p3 p4 p5
Here lspci does not mention VPD part at all:
23:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller 980 [144d:a809] (prog-if 02 [NVM Express])
Subsystem: Samsung Electronics Co Ltd Device [144d:a801]
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 39
NUMA node: 0
IOMMU group: 24
Region 0: Memory at fc900000 (64-bit, non-prefetchable) [size=16K]
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: Enable- Count=1/32 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [70] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0W
DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq+
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr- TransPend-
LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L1 <64us
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+ NROPrPrP- LTR+
10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
FRS- TPHComp- ExtTPHComp-
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+ 10BitTagReq- OBFF Disabled,
AtomicOpsCtl: ReqEn-
LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS-
LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+ EqualizationPhase1+
EqualizationPhase2+ EqualizationPhase3+ LinkEqualizationRequest-
Retimer- 2Retimers- CrosslinkRes: unsupported
Capabilities: [b0] MSI-X: Enable+ Count=13 Masked-
Vector table: BAR=0 offset=00003000
PBA: BAR=0 offset=00002000
Capabilities: [100 v2] Advanced Error Reporting
UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
MultHdrRecCap+ MultHdrRecEn- TLPPfxPres- HdrLogCap-
HeaderLog: 00000000 00000000 00000000 00000000
Capabilities: [148 v1] Device Serial Number 00-00-00-00-00-00-00-00
Capabilities: [158 v1] Power Budgeting <?>
Capabilities: [168 v1] Secondary PCI Express
LnkCtl3: LnkEquIntrruptEn- PerformEqu-
LaneErrStat: 0
Capabilities: [188 v1] Latency Tolerance Reporting
Max snoop latency: 1048576ns
Max no snoop latency: 1048576ns
Capabilities: [190 v1] L1 PM Substates
L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
PortCommonModeRestoreTime=10us PortTPowerOnTime=10us
L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-
T_CommonMode=0us LTR1.2_Threshold=32768ns
L1SubCtl2: T_PwrOn=10us
Kernel driver in use: nvme
Kernel modules: nvme
Any idea what can be wrong? Other than usual "it is fault of
used PCI Express implementation".
NOTE: Honeycomb does not expose root ports to the OS.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Samsung PM991 NVME does not work on LX2160A system (Solidrun Honeycomb)
2023-03-20 11:58 Samsung PM991 NVME does not work on LX2160A system (Solidrun Honeycomb) Marcin Juszkiewicz
@ 2023-03-20 16:11 ` Bjorn Helgaas
2023-03-23 4:16 ` Christoph Hellwig
0 siblings, 1 reply; 3+ messages in thread
From: Bjorn Helgaas @ 2023-03-20 16:11 UTC (permalink / raw)
To: Marcin Juszkiewicz
Cc: linux-pci, Minghuan Lian, Mingkai Hu, Roy Zang, linux-arm-kernel,
Jon Nettleton, Keith Busch, Jens Axboe, Christoph Hellwig,
Sagi Grimberg, linux-nvme
[+cc NVMe folks]
On Mon, Mar 20, 2023 at 12:58:52PM +0100, Marcin Juszkiewicz wrote:
> During last week I had to shuffle some of my NVME drives between
> systems. One of those systems is Solidrun Honeycomb which uses
> LX2160A SoC.
>
> The problem is that I am unable to use Samsung PM991 NVME there.
> It is 2242 card so probably also DRAMless. Kernel says:
>
> nvme 0004:01:00.0: Adding to iommu group 4
> nvme nvme0: pci function 0004:01:00.0
> nvme nvme0: missing or invalid SUBNQN field.
> nvme nvme0: 1/0/0 default/read/poll queues
> nvme 0004:01:00.0: VPD access failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update
>
> The SUBNQN part can be handled by adding quirk in nvme/core.c file
> but that does not change situation. It also does not appear when
> used in x86-64 system.
>
> Card is visible but only as PCIe device, no NVME block devices.
>
> lspci says:
>
> 0004:01:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller 980 [144d:a809] (prog-if 02 [NVM Express])
> Subsystem: Samsung Electronics Co Ltd NVMe SSD Controller 980 [144d:a801]
> 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 106
> NUMA node: 0
> IOMMU group: 1
> Region 0: Memory at a400000000 (64-bit, non-prefetchable) [size=16K]
> Expansion ROM at a040000000 [disabled] [size=128K]
> 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: Enable- Count=1/32 Maskable- 64bit+
> Address: 0000000000000000 Data: 0000
> Capabilities: [70] Express (v2) Endpoint, MSI 00
> DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
> ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 15.000W
> DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
> RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
> MaxPayload 128 bytes, MaxReadReq 512 bytes
> DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
> LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L1 <64us
> ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+
> LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk-
> ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
> LnkSta: Speed 8GT/s (ok), Width x4 (ok)
> TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
> DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR+
> 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
> EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
> FRS+ TPHComp- ExtTPHComp-
> AtomicOpsCap: 32bit- 64bit- 128bitCAS-
> DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled,
> AtomicOpsCtl: ReqEn-
> LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS+
> 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-
> Retimer- 2Retimers- CrosslinkRes: unsupported
> Capabilities: [b0] MSI-X: Enable+ Count=13 Masked-
> Vector table: BAR=0 offset=00003000
> PBA: BAR=0 offset=00002000
> Capabilities: [d0] Vital Product Data
> Not readable
> Capabilities: [100 v2] Advanced Error Reporting
> UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
> CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
> CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
> AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
> MultHdrRecCap+ MultHdrRecEn- TLPPfxPres- HdrLogCap-
> HeaderLog: 00000000 00000000 00000000 00000000
> Capabilities: [148 v1] Device Serial Number 00-00-00-00-00-00-00-00
> Capabilities: [158 v1] Power Budgeting <?>
> Capabilities: [168 v1] Secondary PCI Express
> LnkCtl3: LnkEquIntrruptEn- PerformEqu-
> LaneErrStat: 0
> Capabilities: [188 v1] Latency Tolerance Reporting
> Max snoop latency: 0ns
> Max no snoop latency: 0ns
> Capabilities: [190 v1] L1 PM Substates
> L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
> PortCommonModeRestoreTime=10us PortTPowerOnTime=10us
> L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-
> T_CommonMode=0us LTR1.2_Threshold=0ns
> L1SubCtl2: T_PwrOn=10us
> Capabilities: [1a0 v1] Dynamic Power Allocation <?>
> Capabilities: [1d0 v1] Readiness Time Reporting <?>
> Capabilities: [1dc v1] Vendor Specific Information: ID=0002 Rev=3 Len=100 <?>
> Capabilities: [2dc v1] Vendor Specific Information: ID=0001 Rev=1 Len=038 <?>
> Capabilities: [314 v1] Precision Time Measurement
> PTMCap: Requester:+ Responder:- Root:-
> PTMClockGranularity: Unimplemented
> PTMControl: Enabled:- RootSelected:-
> PTMEffectiveGranularity: Unknown
> Capabilities: [320 v1] Vendor Specific Information: ID=0003 Rev=1 Len=054 <?>
> Kernel driver in use: nvme
> Kernel modules: nvme
>
>
> I am able to use it without issues on my AMD Ryzen 3 3600 system:
>
> pci 0000:23:00.0: [144d:a809] type 00 class 0x010802
> pci 0000:23:00.0: reg 0x10: [mem 0xfc900000-0xfc903fff 64bit]
> pci_bus 0000:23: resource 1 [mem 0xfc900000-0xfc9fffff]
> pci 0000:23:00.0: Adding to iommu group 24
> nvme nvme2: pci function 0000:23:00.0
> nvme nvme2: Shutdown timeout set to 8 seconds
> nvme nvme2: allocated 64 MiB host memory buffer.
> nvme nvme2: 12/0/0 default/read/poll queues
> nvme2n1: p1 p2 p3 p4 p5
>
>
> Here lspci does not mention VPD part at all:
>
> 23:00.0 Non-Volatile memory controller [0108]: Samsung Electronics Co Ltd NVMe SSD Controller 980 [144d:a809] (prog-if 02 [NVM Express])
> Subsystem: Samsung Electronics Co Ltd Device [144d:a801]
> Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
> Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
> Latency: 0, Cache Line Size: 64 bytes
> Interrupt: pin A routed to IRQ 39
> NUMA node: 0
> IOMMU group: 24
> Region 0: Memory at fc900000 (64-bit, non-prefetchable) [size=16K]
> 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: Enable- Count=1/32 Maskable- 64bit+
> Address: 0000000000000000 Data: 0000
> Capabilities: [70] Express (v2) Endpoint, MSI 00
> DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
> ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0W
> DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq+
> RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset-
> MaxPayload 128 bytes, MaxReadReq 512 bytes
> DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr- TransPend-
> LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L1 <64us
> 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+ NROPrPrP- LTR+
> 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
> EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
> FRS- TPHComp- ExtTPHComp-
> AtomicOpsCap: 32bit- 64bit- 128bitCAS-
> DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR+ 10BitTagReq- OBFF Disabled,
> AtomicOpsCtl: ReqEn-
> LnkCap2: Supported Link Speeds: 2.5-8GT/s, Crosslink- Retimer- 2Retimers- DRS-
> LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
> Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
> Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
> LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+ EqualizationPhase1+
> EqualizationPhase2+ EqualizationPhase3+ LinkEqualizationRequest-
> Retimer- 2Retimers- CrosslinkRes: unsupported
> Capabilities: [b0] MSI-X: Enable+ Count=13 Masked-
> Vector table: BAR=0 offset=00003000
> PBA: BAR=0 offset=00002000
> Capabilities: [100 v2] Advanced Error Reporting
> UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
> UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
> CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
> CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
> AERCap: First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
> MultHdrRecCap+ MultHdrRecEn- TLPPfxPres- HdrLogCap-
> HeaderLog: 00000000 00000000 00000000 00000000
> Capabilities: [148 v1] Device Serial Number 00-00-00-00-00-00-00-00
> Capabilities: [158 v1] Power Budgeting <?>
> Capabilities: [168 v1] Secondary PCI Express
> LnkCtl3: LnkEquIntrruptEn- PerformEqu-
> LaneErrStat: 0
> Capabilities: [188 v1] Latency Tolerance Reporting
> Max snoop latency: 1048576ns
> Max no snoop latency: 1048576ns
> Capabilities: [190 v1] L1 PM Substates
> L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+
> PortCommonModeRestoreTime=10us PortTPowerOnTime=10us
> L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1-
> T_CommonMode=0us LTR1.2_Threshold=32768ns
> L1SubCtl2: T_PwrOn=10us
> Kernel driver in use: nvme
> Kernel modules: nvme
>
>
> Any idea what can be wrong? Other than usual "it is fault of
> used PCI Express implementation".
>
> NOTE: Honeycomb does not expose root ports to the OS.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Samsung PM991 NVME does not work on LX2160A system (Solidrun Honeycomb)
2023-03-20 16:11 ` Bjorn Helgaas
@ 2023-03-23 4:16 ` Christoph Hellwig
0 siblings, 0 replies; 3+ messages in thread
From: Christoph Hellwig @ 2023-03-23 4:16 UTC (permalink / raw)
To: Bjorn Helgaas
Cc: Marcin Juszkiewicz, linux-pci, Minghuan Lian, Mingkai Hu,
Roy Zang, linux-arm-kernel, Jon Nettleton, Keith Busch,
Jens Axboe, Christoph Hellwig, Sagi Grimberg, linux-nvme
On Mon, Mar 20, 2023 at 11:11:00AM -0500, Bjorn Helgaas wrote:
> > The problem is that I am unable to use Samsung PM991 NVME there.
> > It is 2242 card so probably also DRAMless. Kernel says:
> >
> > nvme 0004:01:00.0: Adding to iommu group 4
> > nvme nvme0: pci function 0004:01:00.0
> > nvme nvme0: missing or invalid SUBNQN field.
> > nvme nvme0: 1/0/0 default/read/poll queues
> > nvme 0004:01:00.0: VPD access failed. This is likely a firmware bug on this device. Contact the card vendor for a firmware update
I have no idea who even does the PCI vpd accesses here, but either
way there's not much we can do from the nvme driver side.
> > The SUBNQN part can be handled by adding quirk in nvme/core.c file
> > but that does not change situation. It also does not appear when
> > used in x86-64 system.
Although this suggests something is fishy with the config space
implementation for this particular hardware, and NVMe just happens
to trip it.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2023-03-23 4:16 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2023-03-20 11:58 Samsung PM991 NVME does not work on LX2160A system (Solidrun Honeycomb) Marcin Juszkiewicz
2023-03-20 16:11 ` Bjorn Helgaas
2023-03-23 4:16 ` Christoph Hellwig
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