[meta-freescale] iMX6 FEC driver Linux-fslc 4.17 - IPV6 Multicast not working when unplugging/plugging ethernet cable

[Stefano Cappa]

Hi,
ok thank you for the answer.

What is "netdev mailing list"?



Il giorno gio 27 dic 2018 alle ore 01:22 Fabio Estevam <festevam at gmail.com>
ha scritto:

> Hi Stefano,
>
> On Wed, Dec 26, 2018 at 9:39 PM Stefano Cappa
> <stefano.cappa.ks89 at gmail.com> wrote:
> >
> > Hi everyone,
> >
> > I already posted this message in yocto mailing list, but probably It's
> better the freescale community, so I'm reposting here.
> >
> > If I boot my device with ethernet cable attached and I execute "ping6
> > ff02::fb" to ping the multicast address I get this response:
> >
> > ~# ping6 ff02::fb
> > PING ff02::fb (ff02::fb): 56 data bytes
> > 64 bytes from fe80::c2f:eff:fe11:2d71: seq=0 ttl=64 time=2.057 ms
> > 64 bytes from fe80::809:1bfb:8d4c:ae54: seq=0 ttl=64 time=73.101 ms
> (DUP!)
> > 64 bytes from fe80::3e28:6dff:feed:5b97: seq=0 ttl=64 time=150.772 ms
> > (DUP!)
> >
> > Otherwise, If I unplug and plug again ethernet cable, I cannot ping the
> > multicast ipv6 address anymore.
> > The result is:
> > ~# ping6 ff02::fb
> > PING ff02::fb (ff02::fb): 56 data bytes
> > ping6: sendto: Network is unreachable
> >
> > It seems an issue in Linux FEC driver, as already explained here
> > https://community.nxp.com/thread/359397.
> > I commented that issue to report the problem with linux 4.9.88, but the
> > same happens also with fslc kernel 4.17 Sumo branch.
> >
> > Do you have any suggestions? This is really a frustrating and I'm really
> > surprised to see the same problem also on Linux 4.17.
>
> It would be nice to post this to the netdev mailing list.
>
> You can run ./scripts/get_maintainer.pl -F
> drivers/net/ethernet/freescale/fec_main.c from the kernel source to
> get the people and mailing list addresses.
>
> Thanks
>
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