[etherlab-users] RTAI + e1000e?

[Jordi Blanch Carles]

Hello Wilhelm and Martin,

thank you very much for the information, we will take it into account.

Regards.

Quoting martin troxler <martin.troxler at komaxgroup.com>:

>
> Hi,
>
> If you use a e1000(e) with the generic driver, you have to disable the
> interrupt throttling of the e1000(e):
> Load the e1000 kernel module with options:
> modprobe e1000e TxIntDelay=0 RxIntDelay=0 RxAbsIntDelay=0
> TxAbsIntDelay=0 InterruptThrottleRate=0
>
> Regards
> Martin
>
>>>> "Dr.-Ing. Wilhelm Hagemeister" <hm at igh-essen.com> 21/9/2011 21:33
>>>>
> Hello Jordi,
>
> is seems that Intel NIC's are optimized for performance and bandwith
> but
> not for realtime behavior (which is not really necessary normally). We
> experienced that some combinations of kernel version, EtherCat Master
> version and NIC don't work properly. Also we see latency issues. I
> can't
> really describe what the problem is. Mostly it happens like, people
> are
> reporting frame losses or problems with synchronization with
> Intel-NIC's
> and problems go away when they change on the same system to a Realtek
> chipset.
>
> Anyway we also have systems running well with e100, e1000 and e1000e
> so
> that does not mean you should not try it....
>
> With kind regards
>
> Wilhelm.
>
> Am 21.09.2011 13:36, schrieb Jordi Blanch Carles:
>> Hello Wilhelm,
>>
>> thank you for your fast answer, we'll take it into account. Could
> you
>> tell me which kind of problems have you found working with Intel
> NICs?
>>
>
>
> _______________________________________________
> etherlab-users mailing list
> etherlab-users at etherlab.org
> http://lists.etherlab.org/mailman/listinfo/etherlab-users
>
> Besuchen Sie Komax Wire an der Productronica in München
> vom 15. bis 18. November 2011 - Halle B3 Stand 325
>
> Visit Komax Wire at Productronica in Munich
> from 15 to 18 November 2011 - Hall B3 Stand 325
>
>
>
> Note:
> This e-mail is for the named person's use only. It may contain   
> confidential and/or privileged information. If you have received   
> this e-mail in error, please notify the sender immediately and   
> delete the material from any system. Any unauthorized copying,   
> disclosure, distribution or other use of this information by persons  
>  or entities other than the intended recipient is prohibited.
> Thank You.
>



Jordi Blanch Carles
Unidad de Ensayo y Control

ENCOPIM S.L.
C/. del Parc, 5 (nave 13)
P.I. Els Pinetons
E-08291 RIPOLLET (Barcelona)
Tel: (+34) 935 94 23 47
Fax: (+34) 935 94 64 15

==========================================================
La información contenida en la presente transmisión es confidencial y su
uso únicamente está permitido a su(s) destinatario(s). Si Ud. no es la
persona destinataria de la presente transmisión, rogamos nos lo
comunique de manera inmediata por teléfono (+34 935 942 347) y destruya
cualquier copia de la misma (tanto digitales como en papel).

The information contained in this transmission is confidential and is
intended only for the use of the addressee(s). If you are not the
designated recipient of this transmission, please advise us immediately
by telephone (+34 935 942 347) and destroy any copies (digital and
paper).
======================================================