Re: [U-Boot] U-Boot IPv6 state

18 Jan 2017

      OK. What can I test? I could do it on real hardware like odroid c2 or qemu.
V sre., 18. jan. 2017 09:44 je oseba Teddy Reed reed@fb.com napisala:
On 01/17/2017 09:49 PM, Luka Kovačič wrote:
...
That's great. I could help you to test it. Link-local and maybe
auto-configuration on the home router.
V tor., 17. jan. 2017 23:19 je oseba Chris Packham
<judge.packham@gmail.com mailto:judge.packham@gmail.com> napisala:
On 18/01/2017 5:56 AM, "Luka Kovačič" <luka.kovacica@gmail.com
<mailto:luka.kovacica@gmail.com>> wrote:

    Hi,
    My name is Luka Kovačič and I am just getting interest to
    U-Boot. I was really confused, because IPv6 is all over U-Boot
    on the mailing lists, but it actually isn't available in the
    mainline tree. What is the current state of it? Does it work?
    Kind regards,
    Luka

Wow 2 inquiries in 2 days. Something is going on in the ether.

The last series that was posted is functional but now a little out
of date w.r.t. other u-boot changes. I've also got a github repo
with the changes applied https://github.com/cpackham/u-boot/tree/ipv6

Thanks!
I like the test-command approach.
For some context, I'm testing in QEMU with the added switches:
   -net tap,vlan=0,name=br0,id=net0,script=ifup.sh \
   -net nic,name=br0,vlan=0,model=ftgmac100
Following Redhat's how-to: http://www.linux-kvm.org/page/Networking
And applying a quick patch to net/net.c (2016.07 tag):
}
                 goto common;
  #endif
-#ifdef CONFIG_CMD_PING6
+#if defined(CONFIG_CMD_PING6)
         case PING6:
                 if (ip6_is_unspecified_addr(&net_ping_ip6)) {
                         puts("*** ERROR: ping address not given\n");
                         return 1;
                 }
-               goto common;
+               break;
  #endif
  #if defined(CONFIG_CMD_SNTP)
I wanted to avoid the check for `ipaddr`.
From there I can set CONFIG_PREBOOT commands to ping a pre-configured
IPv6 address on the selected interface. The NS packets work perfectly,
but my NIC model is not buffering the entire NA ICMPv6 packet. I'll test
with hardware tomorrow and report back but I don't suspect any issues
with the V6 code at all.
Once I apply some tweaks my test case will be similar to the U-Boot
sandbox tests [1]; but instead a QEMU model is executed to run a
ping6/tftpboot6. Then an expect script verifies the output and halts the
emulator. These are nasty integration tests but the most useful if
you're like me and most of your work is configuring boards rather than
developing.
...
Tom has applied 2 of the trivial clean up patches so I plan to
rebase the series on top of that soon. After that I'll update to use
kconfig. Then I'll finally get round to doing what Joe actually
asked for and see about adding some tests. I could use some help
with that last bit.

[1] https://github.com/trini/u-boot/blob/master/test/py/tests/test_net.py
...