--------- Original Message --------
Da: Jan Kiszka <[email protected]>
To:
Cc: [email protected]
Oggetto: Re: [RTnet-users] RT_E1000
Data: 14/07/12 09:17
>
> On 2012-07-12 09:14, Matteo Tiraferri wrote:
> > Dear all,
> > i've some trouble with my rtnet application with xenomai. Seems i lose
or
> > i've a delay sending packet my application.
> > When install the rtnet driver i recive this warnig:
> >
> > "RTNET Failed to initialize MSI interrupts. Falling back to legacy
> > interrupts"
>
> You were trying the e1000e from git, right? How is
> /proc/xenomai/interrupts changing when that driver is in use?
>
> > using the drive rt_e1000_new i don't recive any warning but some time i
> > cannot send packet at all.
> >
> > So my question is possible to force the irq number or not?Can somone
explain
> > the reson of those warnig and if it could create some latency error?
> >
> > What are the difference betwen rt_e1000 and rt_e1000_new?
>
> Both are addressing older e1000 adapters. The e1000_new was once started
> to refresh the set of supported devices of the e1000. But it was never
> properly finished.
>
> Meanwhile, modern cards are covered by the e1000e, that why I recently
> ported it to RTnet. This driver is the primary choice for your hardware
> *if* that is handled by it. If you see interrupt problems, let's debug
them.
>
> When running the device under normal linux, what does
>
> lspci -vvk -d VENDOR:DEVICE
>
> report?
>
> Jan
Hi Jan,
thank's for your answer. I'm using rtnet 0.9.12 the latest downloadable
from rtnet.org. I must use rtnet taken from GIT?
Below the output of the command lspci:
04:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet
Controller
Subsystem: Intel Corporation Device 0000
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- TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0, Cache Line Size: 64 bytes
Interrupt: pin A routed to IRQ 17
Region 0: Memory at febe0000 (32-bit, non-prefetchable) [size=128K]
Region 2: I/O ports at ec00 [size=32]
Capabilities: [c8] Power Management version 2
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0+,D1-,D2-,D3hot+,D3cold+)
Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=1 PME-
Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
Address: 0000000000000000 Data: 0000
Capabilities: [e0] Express (v1) Endpoint, MSI 00
DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s
<512ns, L1 <64us
ExtTag- AttnBtn- AttnInd- PwrInd- RBE- FLReset-
DevCtl: Report errors: Correctable- Non-Fatal- Fatal-
Unsupported-
RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+
MaxPayload 128 bytes, MaxReadReq 512 bytes
DevSta: CorrErr- UncorrErr+ FatalErr- UnsuppReq+ AuxPwr+
TransPend-
LnkCap: Port #0, Speed 2.5GT/s, Width x1, ASPM unknown,
Latency L0 <128ns, L1 <64us
ClockPM+ Surprise- LLActRep- BwNot-
LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- Retrain-
CommClk+
ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt-
LnkSta: Speed 2.5GT/s, Width x1, TrErr- Train- SlotClk+
DLActive- BWMgmt- ABWMgmt-
Kernel driver in use: rt_e1000_new
Best Regards
Matteo
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