Re: [PATCH] efinet: add efinet_multicast_filter command

[Andrei Borzenkov <arvidjaar@gmail.com>]

05.11.2015 22:23, Josef Bacik пишет:
> We have some hardware that doesn't honor
> EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST properly so we aren't getting

You mean that driver advertises promiscuous multicast support but does 
not implement it? Can you add debugging to efi_call_6 
(net->receive_filters, net, filters, 0, 0, 0, NULL); whether it fails. 
May be need set each one separately and fall back to promiscuous.

> RA's that are multicasted properly (our switches respond to solicitations with a
> multicast rather than a unicast).

Could you send packet trace?

>  I don't want to add this filtering by
> default, so add a new command to allow a user to specify a multicast receive
> filter.  We use it like this
>

I do not think we need any IPv4 multicasts; for IPv6 we need all nodes 
and solicited address.

But I would like to understand first whether receive_filters fail and we 
ignore it or it succeeds.