[Intel-wired-lan] Problem when igb is forced to 10-HD on both sides.

Ben Greear greearb at candelatech.com
Tue Apr 2 19:20:42 UTC 2019


Hello,

Here is a related question:

Is there any way to make igb auto-negotiate at 10 and/or 100Mbps, but NOT 1Gbps?

For instance:

ethtool -s eth2 advertise 0x02

puts in into fixed 10-FD mode.

Thanks,
Ben


On 4/2/19 12:03 PM, Ben Greear wrote:
> Yes, it works with a cross-over cable.
> 
> Is it valid to enable AUTO_MDI in 'fixed' mode, or do we just have
> to use proper cables in fixed mode?
> 
> Thanks,
> Ben
> 
> On 4/2/19 11:50 AM, Ben Greear wrote:
>> They are directly cabled with a non-cross-over cable.  I'll try
>> with a cross-over cable.
>>
>> Thanks,
>> Ben
>>
>> On 4/2/19 11:36 AM, Fujinaka, Todd wrote:
>>> Are those back-to-back or through a switch. I'm wondering if auto-MDI/MDI-X was turned off and you need to use a crossover cable.
>>>
>>> Todd Fujinaka
>>> Software Application Engineer
>>> Datacenter Engineering Group
>>> Intel Corporation
>>> todd.fujinaka at intel.com
>>>
>>>
>>> -----Original Message-----
>>> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On Behalf Of Ben Greear
>>> Sent: Tuesday, April 2, 2019 11:13 AM
>>> To: intel-wired-lan at lists.osuosl.org
>>> Subject: [Intel-wired-lan] Problem when igb is forced to 10-HD on both sides.
>>>
>>> Hello,
>>>
>>> We found a problem with igb when forcing the negotiation rates.
>>>
>>> If I leave one side to 1GB AUTO, then I can force the other side to any supported combination and it appears to work fine.
>>>
>>> But, if I set both sides to 10-HD, then link will not be established.  I added a bit of debugging to the kernel and I see this in the logs.
>>>
>>> Our user was also setting MTU to 3800, but it turns out that is not needed to reproduce the issue.
>>>
>>> [360212.156670] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k [360212.156672] igb: Copyright (c) 2007-2014 Intel Corporation.
>>> [360212.216114] igb 0000:01:00.0: added PHC on eth0 [360212.216116] igb 0000:01:00.0: Intel(R) Gigabit Ethernet Network Connection [360212.216118] igb 
>>> 0000:01:00.0: eth0: (PCIe:5.0Gb/s:Width x4) 00:30:18:01:64:77 [360212.216200] igb 0000:01:00.0: eth0: PBA No: 106300-000 [360212.216202] igb 0000:01:00.0: 
>>> Using MSI-X interrupts. 4 rx queue(s), 4 tx queue(s) [360212.271608] igb 0000:01:00.1: added PHC on eth1 [360212.271610] igb 0000:01:00.1: Intel(R) Gigabit 
>>> Ethernet Network Connection [360212.271611] igb 0000:01:00.1: eth1: (PCIe:5.0Gb/s:Width x4) 00:30:18:01:64:78 [360212.271694] igb 0000:01:00.1: eth1: PBA No: 
>>> 106300-000 [360212.271695] igb 0000:01:00.1: Using MSI-X interrupts. 4 rx queue(s), 4 tx queue(s) [360212.326533] igb 0000:01:00.2: added PHC on eth2 
>>> [360212.326535] igb 0000:01:00.2: Intel(R) Gigabit Ethernet Network Connection [360212.326537] igb 0000:01:00.2: eth2: (PCIe:5.0Gb/s:Width x4) 
>>> 00:30:18:01:64:79 [360212.326620] igb 0000:01:00.2: eth2: PBA No: 106300-00
>> 0 [360212.326621] igb 0000:01:00.2: Using MSI-X interrupts. 4 rx queue(s), 4 tx queue(s) [360212.438974] igb 0000:01:00.3: added PHC on eth3 [360212.438977] 
>> igb 0000:01:00.3: Intel(R) Gigabit Ethernet Network Connection [360212.438979] igb 0000:01:00.3: eth3: (PCIe:5.0Gb/s:Width x4) 00:30:18:01:64:7a 
>> [360212.439070] igb 0000:01:00.3: eth3: PBA No: 106300-000 [360212.439076] igb 0000:01:00.3: Using MSI-X interrupts. 4 rx queue(s), 4 tx queue(s) 
>> [360212.482565] igb 0000:02:00.0: added PHC on eth4 [360212.482566] igb 0000:02:00.0: Intel(R) Gigabit Ethernet Network Connection [360212.482568] igb 
>> 0000:02:00.0: eth4: (PCIe:2.5Gb/s:Width x1) 00:30:18:01:64:7b [360212.482569] igb 0000:02:00.0: eth4: PBA No: FFFFFF-0FF [360212.482570] igb 0000:02:00.0: 
>> Using MSI-X interrupts. 2 rx queue(s), 2 tx queue(s) [360215.943458] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: 
>> RX/TX [360216.276567] igb 0000:01:00.1 eth1: igb: eth1 NIC Link is Up 1000 Mbps F
>> ull Duplex, Flow Control: RX/TX [360216.493576] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX [360255.427240] igb 
>> 0000:01:00.0 eth0: igb: eth0 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX [360275.927145] igb 0000:01:00.0 eth0: igb: eth0 NIC Link is Up 1000 
>> Mbps Full Duplex, Flow Control: RX/TX [360388.503634] igb 0000:01:00.2: Set Speed: 10  dplx: 0  autoneg: 0  forced-speed-duplex: 1 [360389.299798] igb 
>> 0000:01:00.3 eth3: igb: eth3 NIC Link is Down [360391.609996] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 10 Mbps Half Duplex, Flow Control: None 
>> [360391.609998] igb 0000:01:00.2: EEE Disabled: unsupported at half duplex. Re-enable using ethtool when at full duplex.
>>> [360391.610233] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 10 Mbps Half Duplex, Flow Control: None [360391.610234] igb 0000:01:00.3: EEE Disabled: 
>>> unsupported at half duplex. Re-enable using ethtool when at full duplex.
>>> [360421.400233] igb 0000:01:00.2: Set Speed: 10  dplx: 1  autoneg: 0  forced-speed-duplex: 2 [360421.513446] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is 
>>> Down [360423.815595] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 10 Mbps Full Duplex, Flow Control: None [360423.815928] igb 0000:01:00.3 eth3: igb: eth3 
>>> NIC Link is Up 10 Mbps Half Duplex, Flow Control: None [360465.832992] igb 0000:01:00.2: Set Speed: 100  dplx: 0  autoneg: 0  forced-speed-duplex: 4 
>>> [360465.948361] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Down [360468.272516] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 100 Mbps Half Duplex, Flow 
>>> Control: None [360468.318388] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 100 Mbps Half Duplex, Flow Control: None [360486.514016] igb 0000:01:00.2: Set 
>>> Speed: 100  dplx: 1  autoneg: 0  forced-speed-duplex: 8 [360486.539733] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Down [360488.707926] igb 0000:01:00.3 
>>> eth3: igb: eth3 NIC Link is Up 100 Mbps Half Duplex, Flow 
>> Control: None [360488.753727] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None [360503.658416] igb 0000:01:00.2: Set 
>> Speed: 1000  dplx: 1  autoneg: 1  forced-speed-duplex: 8 [360503.684089] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Down [360506.572410] igb 0000:01:00.3 
>> eth3: igb: eth3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX [360507.120348] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, 
>> Flow Control: None [360543.873779] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Down [360546.701102] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 1000 Mbps 
>> Full Duplex, Flow Control: RX [360547.204119] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: None [360564.547193] igb 
>> 0000:01:00.3 eth3: igb: eth3 NIC Link is Down [360567.404614] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX 
>> [360567.973547] igb 0000:01:00.3 eth3: igb: eth3 N
>> IC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX [360597.366482] igb 0000:01:00.2: changing MTU from 1500 to 3800 [360598.098996] igb 0000:01:00.3 
>> eth3: igb: eth3 NIC Link is Down [360601.028214] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX [360601.581234] 
>> igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX [360611.266742] igb 0000:01:00.3: changing MTU from 1500 to 3800 
>> [360611.591268] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Down [360614.051481] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 1000 Mbps Full Duplex, Flow 
>> Control: RX/TX [360614.605478] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX [360632.902730] igb 0000:01:00.2: 
>> Set Speed: 10  dplx: 0  autoneg: 0  forced-speed-duplex: 1 [360633.276708] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Down [360635.584020] igb 0000:01:00.3 
>> eth3: igb: eth3 NIC Link is Up 10 Mbps Half Duplex
>> , Flow Control: None [360635.584253] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 10 Mbps Half Duplex, Flow Control: None [360695.743292] igb 0000:01:00.3: 
>> Set Speed: 10  dplx: 0  autoneg: 0  forced-speed-duplex: 1 [360695.863858] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Down
>>>
>>> [360614.051481] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX [360614.605478] igb 0000:01:00.2 eth2: igb: eth2 
>>> NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX [360632.902730] igb 0000:01:00.2: Set Speed: 10  dplx: 0  autoneg: 0  forced-speed-duplex: 1 
>>> [360633.276708] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Down [360635.584020] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 10 Mbps Half Duplex, Flow 
>>> Control: None [360635.584253] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Up 10 Mbps Half Duplex, Flow Control: None [360695.743292] igb 0000:01:00.3: Set 
>>> Speed: 10  dplx: 0  autoneg: 0  forced-speed-duplex: 1 [360695.863858] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Down [361049.119412] igb 0000:01:00.2: 
>>> changing MTU from 3800 to 1500 [361064.275721] igb 0000:01:00.3: changing MTU from 3800 to 1500 [361106.100172] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is 
>>> Up 10 Mbps Half Duplex, Flow Control: None [361106.101351
>> ] igb 0000:01:00.3 eth3: igb: eth3 NIC Link is Up 10 Mbps Half Duplex, Flow Control: None [361120.462094] igb 0000:01:00.3: Set Speed: 10  dplx: 0  autoneg: 0 
>> forced-speed-duplex: 1 [361120.578506] igb 0000:01:00.2 eth2: igb: eth2 NIC Link is Down
>>>
>>>
>>> Kernel is 4.20.17+ local hacks (no significant local patches applied to igb though)
>>>
>>>
>>> lspci output:
>>> 01:00.2 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
>>>     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 C routed to IRQ 18
>>>     Region 0: Memory at df720000 (32-bit, non-prefetchable) [size=128K]
>>>     Region 2: I/O ports at e020 [size=32]
>>>     Region 3: Memory at df784000 (32-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=1 PME-
>>>     Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
>>>         Address: 0000000000000000  Data: 0000
>>>         Masking: 00000000  Pending: 00000000
>>>     Capabilities: [70] MSI-X: Enable+ Count=10 Masked-
>>>         Vector table: BAR=3 offset=00000000
>>>         PBA: BAR=3 offset=00002000
>>>     Capabilities: [a0] Express (v2) Endpoint, MSI 00
>>>         DevCap:    MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, 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 256 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 <4us, L1 <32us
>>>             ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
>>>         LnkCtl:    ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>>             ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>>         LnkSta:    Speed 5GT/s, Width x4, 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: [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- NonFatalErr-
>>>         CEMsk:    RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
>>>         AERCap:    First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
>>>             MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
>>>         HeaderLog: 00000000 00000000 00000000 00000000
>>>     Capabilities: [140 v1] Device Serial Number 00-30-18-ff-ff-01-64-77
>>>     Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI)
>>>         ARICap:    MFVC- ACS-, Next Function: 3
>>>         ARICtl:    MFVC- ACS-, Function Group: 0
>>>     Capabilities: [160 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: 02
>>>         VF offset: 128, stride: 4, Device ID: 1520
>>>         Supported Page Size: 00000553, System Page Size: 00000001
>>>         Region 0: Memory at 000000008b080000 (64-bit, prefetchable)
>>>         Region 3: Memory at 000000008b0a0000 (64-bit, prefetchable)
>>>         VF Migration: offset: 00000000, BIR: 0
>>>     Capabilities: [1a0 v1] Transaction Processing Hints
>>>         Device specific mode supported
>>>         Steering table in TPH capability structure
>>>     Capabilities: [1d0 v1] Access Control Services
>>>         ACSCap:    SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
>>>         ACSCtl:    SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
>>>     Kernel driver in use: igb
>>>     Kernel modules: igb
>>>
>>> 01:00.3 Ethernet controller: Intel Corporation I350 Gigabit Network Connection (rev 01)
>>>     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 D routed to IRQ 19
>>>     Region 0: Memory at df700000 (32-bit, non-prefetchable) [size=128K]
>>>     Region 2: I/O ports at e000 [size=32]
>>>     Region 3: Memory at df780000 (32-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=1 PME-
>>>     Capabilities: [50] MSI: Enable- Count=1/1 Maskable+ 64bit+
>>>         Address: 0000000000000000  Data: 0000
>>>         Masking: 00000000  Pending: 00000000
>>>     Capabilities: [70] MSI-X: Enable+ Count=10 Masked-
>>>         Vector table: BAR=3 offset=00000000
>>>         PBA: BAR=3 offset=00002000
>>>     Capabilities: [a0] Express (v2) Endpoint, MSI 00
>>>         DevCap:    MaxPayload 512 bytes, PhantFunc 0, Latency L0s <512ns, 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 256 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 <4us, L1 <32us
>>>             ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
>>>         LnkCtl:    ASPM Disabled; RCB 64 bytes Disabled- CommClk+
>>>             ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
>>>         LnkSta:    Speed 5GT/s, Width x4, 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: [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- NonFatalErr-
>>>         CEMsk:    RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+
>>>         AERCap:    First Error Pointer: 00, ECRCGenCap+ ECRCGenEn- ECRCChkCap+ ECRCChkEn-
>>>             MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
>>>         HeaderLog: 00000000 00000000 00000000 00000000
>>>     Capabilities: [140 v1] Device Serial Number 00-30-18-ff-ff-01-64-77
>>>     Capabilities: [150 v1] Alternative Routing-ID Interpretation (ARI)
>>>         ARICap:    MFVC- ACS-, Next Function: 0
>>>         ARICtl:    MFVC- ACS-, Function Group: 0
>>>     Capabilities: [160 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: 03
>>>         VF offset: 128, stride: 4, Device ID: 1520
>>>         Supported Page Size: 00000553, System Page Size: 00000001
>>>         Region 0: Memory at 000000008b0c0000 (64-bit, prefetchable)
>>>         Region 3: Memory at 000000008b0e0000 (64-bit, prefetchable)
>>>         VF Migration: offset: 00000000, BIR: 0
>>>     Capabilities: [1a0 v1] Transaction Processing Hints
>>>         Device specific mode supported
>>>         Steering table in TPH capability structure
>>>     Capabilities: [1d0 v1] Access Control Services
>>>         ACSCap:    SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
>>>         ACSCtl:    SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
>>>     Kernel driver in use: igb
>>>     Kernel modules: igb
>>>
>>>
>>> I will be happy to try patches or provide other debugging.  The problem is fully reproducible.
>>>
>>> Thanks,
>>> Ben
>>>
>>> -- 
>>> Ben Greear <greearb at candelatech.com>
>>> Candela Technologies Inc  http://www.candelatech.com
>>>
>>> _______________________________________________
>>> Intel-wired-lan mailing list
>>> Intel-wired-lan at osuosl.org
>>> https://lists.osuosl.org/mailman/listinfo/intel-wired-lan
>>>
>>
>>
> 
> 


-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com



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