Messages

There's some USB debugging options that may help you:

Code Select Expand

hw.usb.wmt.debug: 0
hw.usb.ums.debug: 0
hw.usb.ukbd.debug: 0
hw.usb.uhid.debug: 0
hw.usb.ucom.debug: 0
hw.usb.proc.debug: 0
hw.usb.uhub.debug: 0
hw.usb.ugen.debug: 0
hw.usb.dev.debug: 0
hw.usb.debug: 0
hw.usb.umass.debug: 0
hw.usb.ctrl.debug: 0
hw.usb.xhci.debug: 0
hw.usb.uhci.debug: 0
hw.usb.ohci.debug: 0
hw.usb.ehci.debug: 0


I'd start with sysctl -x hw.usb.debug=1

That mostly depends on the CPU that you will employ. An Intel X550-T2 should be capable enough to achieve line rate - although that depends on packet size and more parameters.

Also, there must be enough PCIE lines and sufficient level to supprt 2x 10 GbE.

For those playing along at home. The X550-T2 has a target of 8GT, has a width of x4 and support upto v3.0
So in that case you'll need pcie1.0 x4, pcie2.0 x2 or pcie3.0 x1 to satisfy the target.

Relevant section from lspci:

Code Select Expand

        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: CorrErr- NonFatalErr- FatalErr- UnsupReq-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop- FLReset-
                        MaxPayload 256 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr+ NonFatalErr- FatalErr- UnsupReq+ AuxPwr- TransPend-
                LnkCap: Port #0, Speed 8GT/s, Width x4, 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 (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-
                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


Pretty sure my 3040 has the nic attached via pcie. the z8300 machines i have use the via USB, i through this besides a small difference in boost clock was the difference between them?

Or is the usb for a second nic? You can just use vlan interfaces instead...