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

Brown, Aaron F aaron.f.brown at intel.com
Wed Apr 3 01:51:22 UTC 2019


> From: Intel-wired-lan [mailto:intel-wired-lan-bounces at osuosl.org] On
> Behalf Of Fujinaka, Todd
> Sent: Tuesday, April 2, 2019 2:41 PM
> To: Fujinaka, Todd <todd.fujinaka at intel.com>; Ben Greear
> <greearb at candelatech.com>; intel-wired-lan at lists.osuosl.org
> Subject: Re: [Intel-wired-lan] Problem when igb is forced to 10-HD on both
> sides.
> 
> man ethtool will show you how to change advertised speeds.
[Brown, Aaron F] 
u1458:[2]/root> ethtool -s eth1 autoneg on advertise 0x00F
u1458:[2]/root> ethtool eth1
Settings for eth1:
        Supported ports: [ TP ]
<snip>
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised pause frame use: Symmetric
...

The 0x00F comes from adding up the hex values from the table in the man page:
...
advertise N
                  Sets the speed and duplex advertised by autonegotiation.  The argument is a hexadecimal value
                  using one or a combination of the following values:

                  0x001             10baseT Half
                  0x002             10baseT Full
                  0x004             100baseT Half
                  0x008             100baseT Full
...

> 
> 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 Fujinaka, Todd
[Brown, Aaron F] 
> Sent: Tuesday, April 2, 2019 2:33 PM
> To: Ben Greear <greearb at candelatech.com>; intel-wired-
> lan at lists.osuosl.org
> Subject: Re: [Intel-wired-lan] Problem when igb is forced to 10-HD on both
> sides.
> 
> Autonegotiate isn't the same for 10, 100, and 1G. If you start at 1G and don't
> advertise 1G it's one thing, but slower speeds are different. Like I said, you
> may need to read the IEEE documentation.
> 
> And no, Auto-MDI/MDI-X is not something that works everywhere with
> everything. It didn't really get developed until 1G times. I'm not sure what it
> physically does at lower line rates.
> 
> Todd Fujinaka
> Software Application Engineer
> Datacenter Engineering Group
> Intel Corporation
> todd.fujinaka at intel.com
> 
> 
> -----Original Message-----
> From: Ben Greear [mailto:greearb at candelatech.com]
> Sent: Tuesday, April 2, 2019 2:29 PM
> To: Fujinaka, Todd <todd.fujinaka at intel.com>; intel-wired-
> lan at lists.osuosl.org
> Subject: Re: [Intel-wired-lan] Problem when igb is forced to 10-HD on both
> sides.
> 
> I'm quite sure that most real 10Mbps hardware didn't support auto-MDI, so it
> is not required.
> 
> The igb hardware can definitely set link to 10Mbps, and it can definitely do
> auto-MDI, so it would seem reasonable to allow it to do both at the same
> time.
> 
> My question below is more about having the igb NIC advertise itself as
> supporting 10/100 autonegotiate (instead of 10/100/1000).
> 
> Thanks,
> Ben
> 
> On 4/2/19 2:19 PM, Fujinaka, Todd wrote:
> > I think you need to read the IEEE spec on this. I'm still trying to figure out if
> 10-HD actually requires auto-MDI/MDI-X or if that's not covered.
> >
> > I'm trying to find someone who remembers that far back. 10BASE-T is kind
> of historic at this time.
> >
> > Todd Fujinaka
> > Software Application Engineer
> > Datacenter Engineering Group
> > Intel Corporation
> > todd.fujinaka at intel.com
> >
> >
> > -----Original Message-----
> > From: Ben Greear [mailto:greearb at candelatech.com]
> > Sent: Tuesday, April 2, 2019 12:21 PM
> > To: Fujinaka, Todd <todd.fujinaka at intel.com>;
> > intel-wired-lan at lists.osuosl.org
> > Subject: Re: [Intel-wired-lan] Problem when igb is forced to 10-HD on both
> sides.
> >
> > 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
> >
> 
> 
> --
> Ben Greear <greearb at candelatech.com>
> Candela Technologies Inc  http://www.candelatech.com
> 
> _______________________________________________
> Intel-wired-lan mailing list
> Intel-wired-lan at osuosl.org
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> _______________________________________________
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