Re: [Linuxptp-users] Xilinx Ethernet Lite does not support multicast packets

[nicolas l. <nic...@ub...>]

Hi Richard,

Thank you for the quick response.

Unfortunately it seem that not :
         "The EMACLite does not support promiscuous mode, and it always
accepts unicast and broadcast packets. "
>From : http://www.origin.xilinx.com/support/answers/17124.htm

I think we will try to implement another MAC API.

Nicolas

Le 19/03/2013 19:32, Richard Cochran a écrit :
> On Tue, Mar 19, 2013 at 03:07:03PM +0100, nicolas lantz wrote:
>> "Xilinx Ethernet Lite"  is marked as supporting PHY (and other)
>> timestamping in the Driver Support Matrix.
>> But according to data-sheet : "The Ethernet Lite MAC core does not
>> support multicast packets."
> Maybe they mean that there is no multicast filtering. I expect, at the
> very least, you should be able to run in promiscuous mode.
>  
>> I try to get it working with a DP83640 PHY since three weeks, but
>> without multicast support I now wonder how this would be possible.
>> But why the emaclite drivers implements "skb_defer_rx_timestamp(skb)"
>> function in the "xemaclite_rx_handler()" and
>> "skb_tx_timestamp(new_skb)"  in   the "xemaclite_send" (
>> .ndo_start_xmit) if it could not be usable ?
>> there is something I've missed ?
> I added the hooks to this MAC driver because it makes use of phylib,
> and it therefore can support a time stamping PHY. However, I never
> testing this, since I don't have access to this hardware.
>
> Anyhow, I would be surprised if the MAC prevents you sending and
> receiving multicast packets.
>
> HTH,
> Richard