[ECOS] Multi-cast mode warning

[ECOS] Multi-cast mode warning

[Tim Hatton]

Hello,
I am currently in the process of try to get eCos (2.0.43)  running on our
own hardware which uses a DP83848 PHY. I have used the exisiting DP83847
driver (which came with eCos) as a base and I have got to the stage where
the ethernet link is established. I am however getting the following warning
message when initialising the network:

[eth_drv_ioctl] Warning: Driver can't set multi-cast mode

Now, if everything worked I wouldn't be worried about this, but I don't seem
to be getting any IP packets out of the hardware (eCos is trying to send
DHCP discovery messages but they aren't coming out to the ethernet). I
suspect this may be a hardware issue but, I would like some confirm that the
warning above is or isn't anything I need to look into.

My understanding of multi-cast mode is that I shouldn't need it or care but
if anyone could confirm or deny this I'd be very grateful.
Best regards,
Tim Hatton
Coherent Research Ltd
UK



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Re: [ECOS] Multi-cast mode warning

[Gary Thomas]

Tim Hatton wrote:
> Hello,
> I am currently in the process of try to get eCos (2.0.43)  running on our
> own hardware which uses a DP83848 PHY. I have used the exisiting DP83847
> driver (which came with eCos) as a base and I have got to the stage where
> the ethernet link is established. I am however getting the following warning
> message when initialising the network:
> 
> [eth_drv_ioctl] Warning: Driver can't set multi-cast mode
> 
> Now, if everything worked I wouldn't be worried about this, but I don't seem
> to be getting any IP packets out of the hardware (eCos is trying to send
> DHCP discovery messages but they aren't coming out to the ethernet). I
> suspect this may be a hardware issue but, I would like some confirm that the
> warning above is or isn't anything I need to look into.
> 
> My understanding of multi-cast mode is that I shouldn't need it or care but
> if anyone could confirm or deny this I'd be very grateful.

This is indeed just a warning and has no affect on normal operations.
Multi-case mode is only important for IPv6 and specific multi-cast
operations.

If you're not getting any packets, then you probably have a different
[hardware?] problem.

-- 
------------------------------------------------------------
Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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Re: [ECOS] Multi-cast mode warning

[Tim Hatton]

Thanks Gary,
That's was my assumption, I just wanted to hear it from someone else,
Thanks again,
Tim
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Re: [ECOS] Multi-cast mode warning

[rholmberg]

Tim,
Can you please tell me if you were able to get the DP83848 to function
properly with the AT91RM9200? I have an application that is planning to use
the same DP83848CW Ethernety PHY with the AT91RM9200 - it would be very
reassurring to know that someone has successfully implemented these items.


Best Regards,

Randy Holmberg



Tim Hatton wrote:
> 
> Hello,
> I am currently in the process of try to get eCos (2.0.43)  running on our
> own hardware which uses an ATMEL AT91RM9200 CPU (bulit in MAC) and a
> DP83848 PHY. I have used the eCos build from the AT91RM9200-EK and the
> exisiting DP83847 driver (changing it to support the similar DP83848) as a
> base and I have got to the stage where the ethernet link is established. I
> am however getting the following warning message when initialising the
> network:
> 
> [eth_drv_ioctl] Warning: Driver can't set multi-cast mode
> 
> Now, if everything worked I wouldn't be worried about this, but I don't
> seem to be getting any IP packets out of the hardware (eCos is trying to
> send DHCP discovery messages but they aren't coming out to the ethernet).
> I suspect this may be a hardware issue but, I would like some confirm that
> the warning above is or isn't anything I need to look into.
> 
> My understanding of multi-cast mode is that I shouldn't need it or care
> but if anyone could confirm or deny this I'd be very grateful.
> Best regards,
> Tim Hatton
> Coherent Research Ltd
> UK
> 
> 
> 
> 

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Re: [ECOS] Multi-cast mode warning

[wang cui]

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I am sure, "[eth_drv_ioctl] Warning: Driver can't set multi-cast mode" 
doesn't interfere normal IPv4 opreations. Maybe there are some hardware 
problem, or you need double check the register operations.

I got this waring on my target using dp83902a driver, and it doesn't 
matter.
However I have added the multicast support, and will contribute it after 
full test.

>From: rholmberg <randy.holmberg@liposonix.com>
>To: ecos-discuss@ecos.sourceware.org
>Subject: Re: [ECOS] Multi-cast mode warning
>Date: Wed, 31 Jan 2007 07:40:30 -0800 (PST)
>
>
>Tim,
>Can you please tell me if you were able to get the DP83848 to function
>properly with the AT91RM9200? I have an application that is planning to 
use
>the same DP83848CW Ethernety PHY with the AT91RM9200 - it would be very
>reassurring to know that someone has successfully implemented these items.
>
>
>Best Regards,
>
>Randy Holmberg
>
>
>
>Tim Hatton wrote:
> >
> > Hello,
> > I am currently in the process of try to get eCos (2.0.43)  running on 
our
> > own hardware which uses an ATMEL AT91RM9200 CPU (bulit in MAC) and a
> > DP83848 PHY. I have used the eCos build from the AT91RM9200-EK and the
> > exisiting DP83847 driver (changing it to support the similar DP83848) 
as a
> > base and I have got to the stage where the ethernet link is 
established. I
> > am however getting the following warning message when initialising the
> > network:
> >
> > [eth_drv_ioctl] Warning: Driver can't set multi-cast mode
> >
> > Now, if everything worked I wouldn't be worried about this, but I don't
> > seem to be getting any IP packets out of the hardware (eCos is trying 
to
> > send DHCP discovery messages but they aren't coming out to the 
ethernet).
> > I suspect this may be a hardware issue but, I would like some confirm 
that
> > the warning above is or isn't anything I need to look into.
> >
> > My understanding of multi-cast mode is that I shouldn't need it or care
> > but if anyone could confirm or deny this I'd be very grateful.
> > Best regards,
> > Tim Hatton
> > Coherent Research Ltd
> > UK
> >
> >
> >
> >
>
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>
>
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>

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Re: [ECOS] Multi-cast mode warning

[FALL]

FALL Birahim
Elsys-Design 
PACA

>Thanks Gary,
>That's was my assumption, I just wanted to hear it from someone else,
>Thanks again,
>Tim

Tim, please help! Gary is right "Multi-cast mode warning" means you will not support IGMP, that's all.  




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