Multi-cast mode warning
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Multi-cast mode warning
by Tim Hatton
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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: Multi-cast mode warning
by Gary Thomas
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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 ------------------------------------------------------------ -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss |
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Re: Multi-cast mode warning
by Tim Hatton
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Thanks Gary,
That's was my assumption, I just wanted to hear it from someone else, Thanks again, Tim |
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Re: Multi-cast mode warning
by rholmberg
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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
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Re: Multi-cast mode warning
by 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@...> >To: ecos-discuss@... >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 > > 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 > > > > > > > > > >-- >View this message in context: >Sent from the Sourceware - ecos-discuss mailing list archive at Nabble.com. > > >-- >Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos >and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss > _________________________________________________________________ 免费下载 MSN Explorer: http://explorer.msn.com/lccn/ -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss |
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