[etherlab-users] r8169 patch - packet timeout boot failures

[Raz]

hey
Problem happens with intel e1000e as well as realtek.  One way to bypass it
is to boot the master while the ethernet-ethercat cable is disconnected,
and once master claims the interface , connect this cable. This appears to
work.
So , There some sort of of initialisation error.


On Mon, Dec 2, 2013 at 11:32 AM, Raz <raziebe at gmail.com> wrote:

> I still do not have a scenario. it "sometimes" happens. The
> -DRTL8169_DEBUG is something i did not know, so i will check and see. thx
>
>
> On Mon, Dec 2, 2013 at 11:27 AM, Jeroen Van den Keybus <
> jeroen.vandenkeybus at gmail.com> wrote:
>
>> Is there a difference between cold and warm boot ? Does unloading the ec
>> driver, loading/unloading the stock r8169 driver and then reloading the ec
>> driver work better ? Same scenario but with Realtek drivers (r8168) ? Also
>> perhaps compile with -DRTL8169_DEBUG ?
>>
>> Just some thoughts.
>>
>> J.
>>
>>
>> 2013/12/2 Raz <raziebe at gmail.com>
>>
>>> The timeouts happens after the system boots and not while slaves are in
>>> in OP mode. So my transmit is irrelevant here, even though a transmit
>>> happens only from a single thread of through an ioctl ( SDO reads and so
>>> on..)
>>>
>>>
>>>
>>>
>>> On Mon, Dec 2, 2013 at 11:01 AM, Jeroen Van den Keybus <
>>> jeroen.vandenkeybus at gmail.com> wrote:
>>>
>>>>
>>>>> 1. why do you disable the rtl8169_phy_timer  timer ?
>>>>>
>>>>
>>>> The rtl8169_phy_timer is regularly polled in ec_poll instead.
>>>>
>>>>
>>>>
>>>>> 2.  In rtl_hw_start_8168 : why do disable RTL_W16(IntrMask,
>>>>> tp->intr_event); ?
>>>>>
>>>>>
>>>> The drivers are all non-blocking and interrupt-free. All work that
>>>> interrupt handlers normally do is done in ec_poll instead.
>>>>
>>>> If you cannot send packets anymore, I suspect that you may have overrun
>>>> the tx queue, i.e. sent a packet before the previous one has been
>>>> completed. You're also not calling the ethercat transmission functions from
>>>> different threads, right ?
>>>>
>>>>
>>>> thank you
>>>>> raz
>>>>>
>>>>> --
>>>>> https://sites.google.com/site/ironspeedlinux/
>>>>>
>>>>> _______________________________________________
>>>>> etherlab-users mailing list
>>>>> etherlab-users at etherlab.org
>>>>> http://lists.etherlab.org/mailman/listinfo/etherlab-users
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> https://sites.google.com/site/ironspeedlinux/
>>>
>>
>>
>
>
> --
> https://sites.google.com/site/ironspeedlinux/
>



-- 
https://sites.google.com/site/ironspeedlinux/
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.etherlab.org/pipermail/etherlab-users/attachments/20131203/865a1107/attachment-0003.htm>