mlx5_core failed to load with 5.1.0-rc7-next-20190430+

From: Qian Cai
Date: Tue Apr 30 2019 - 21:23:38 EST

Reverted the commit b169e64a2444 ("net/mlx5: Geneve, Add flow table capabilities
for Geneve decap with TLV options") fixed the problem below during boot ends up
without networking.

[ 92.471247] mlx5_core 0000:0b:00.0: mlx5_cmd_check:744:(pid 13):
CREATE_EQ(0x301) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x8fef)
[ 92.484824] mlx5_core 0000:0b:00.0: create_async_eqs:572:(pid 13): failed to
create async EQ -22
[ 92.603279] mlx5_core 0000:0b:00.0: mlx5_eq_table_create:1007:(pid 13):
Failed to create async EQs
[ 92.630541] mlx5_core 0000:0b:00.0: mlx5_load:1053:(pid 13): Failed to create EQs
[ 94.866908] mlx5_core 0000:0b:00.0: init_one:1329:(pid 13): mlx5_load_one
failed with error code -22
[ 94.879657] mlx5_core: probe of 0000:0b:00.0 failed with error -22
[ 94.887784] mlx5_core 0000:0b:00.1: Adding to iommu group 2
[ 95.017012] mlx5_core 0000:0b:00.1: firmware version: 14.21.1000
[ 95.023090] mlx5_core 0000:0b:00.1: 63.008 Gb/s available PCIe bandwidth (8
GT/s x8 link)
[ 96.155792] mlx5_core 0000:0b:00.1: mlx5_cmd_check:744:(pid 13):
CREATE_EQ(0x301) op_mod(0x0) failed, status bad parameter(0x3), syndrome (0x8fef)
[ 96.169220] mlx5_core 0000:0b:00.1: create_async_eqs:572:(pid 13): failed to
create async EQ -22
[ 96.199340] mlx5_core 0000:0b:00.1: mlx5_eq_table_create:1007:(pid 13):
Failed to create async EQs
[ 96.224004] mlx5_core 0000:0b:00.1: mlx5_load:1053:(pid 13): Failed to create EQs
[ 97.681695] mlx5_core 0000:0b:00.1: init_one:1329:(pid 13): mlx5_load_one
failed with error code -22
[ 97.692749] mlx5_core: probe of 0000:0b:00.1 failed with error -22

# lspci -vvv
...
0b:00.0 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
Subsystem: Hewlett Packard Enterprise Device 028a
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 23
NUMA node: 0
Region 0: Memory at 10000000000 (64-bit, prefetchable) [size=32M]
Expansion ROM at 43000000 [disabled] [size=1M]
Capabilities: [60] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
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 x8, ASPM not supported
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
AtomicOpsCtl: ReqEn-
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: [48] Vital Product Data
End
Capabilities: [9c] MSI-X: Enable+ Count=64 Masked-
Vector table: BAR=0 offset=00002000
PBA: BAR=0 offset=00003000
Capabilities: [c0] Vendor Specific Information: Len=18 <?>
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot-,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [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: 04, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
HeaderLog: 00000000 00000000 00000000 00000000
Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 1
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [180 v1] Single Root I/O Virtualization (SR-IOV)
IOVCap: Migration-, Interrupt Message Number: 000
IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy+
IOVSta: Migration-
Initial VFs: 8, Total VFs: 8, Number of VFs: 0, Function Dependency Link: 00
VF offset: 2, stride: 1, Device ID: 1016
Supported Page Size: 000007ff, System Page Size: 00000001
Region 0: Memory at 0000010004800000 (64-bit, prefetchable)
VF Migration: offset: 00000000, BIR: 0
Capabilities: [1c0 v1] #19
Capabilities: [230 v1] Access Control Services
ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl-
DirectTrans-
ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl-
DirectTrans-
Kernel driver in use: mlx5_core
Kernel modules: mlx5_core

0b:00.1 Ethernet controller: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
Subsystem: Hewlett Packard Enterprise Device 028a
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 B routed to IRQ 24
NUMA node: 0
Region 0: Memory at 10002000000 (64-bit, prefetchable) [size=32M]
Expansion ROM at 43100000 [disabled] [size=1M]
Capabilities: [60] Express (v2) Endpoint, MSI 00
DevCap: MaxPayload 512 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited
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 x8, ASPM not supported
ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk-
ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 8GT/s, Width x8, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR-, OBFF Not Supported
AtomicOpsCap: 32bit- 64bit- 128bitCAS-
DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled
AtomicOpsCtl: ReqEn-
LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-,
EqualizationPhase1-
EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest-
Capabilities: [48] Vital Product Data
End
Capabilities: [9c] MSI-X: Enable+ Count=64 Masked-
Vector table: BAR=0 offset=00002000
PBA: BAR=0 offset=00003000
Capabilities: [c0] Vendor Specific Information: Len=18 <?>
Capabilities: [40] Power Management version 3
Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0-,D1-,D2-,D3hot-,D3cold+)
Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [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: 04, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
HeaderLog: 00000000 00000000 00000000 00000000
Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI)
ARICap: MFVC- ACS-, Next Function: 0
ARICtl: MFVC- ACS-, Function Group: 0
Capabilities: [180 v1] Single Root I/O Virtualization (SR-IOV)
IOVCap: Migration-, Interrupt Message Number: 000
IOVCtl: Enable- Migration- Interrupt- MSE- ARIHierarchy-
IOVSta: Migration-
Initial VFs: 8, Total VFs: 8, Number of VFs: 0, Function Dependency Link: 00
VF offset: 9, stride: 1, Device ID: 1016
Supported Page Size: 000007ff, System Page Size: 00000001
Region 0: Memory at 0000010004000000 (64-bit, prefetchable)
VF Migration: offset: 00000000, BIR: 0
Capabilities: [230 v1] Access Control Services
ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl-
DirectTrans-
ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl-
DirectTrans-
Kernel driver in use: mlx5_core
Kernel modules: mlx5_core