From: michael.weiser@gmx.de (Michael Weiser)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] ARM: sunxi: enable big-endian
Date: Fri, 29 Jul 2016 20:55:38 +0200 [thread overview]
Message-ID: <20160729185538.GA7042@weiser.dinsnail.net> (raw)
In-Reply-To: <20160729163907.GD6215@lukather>
Hi Maxime,
On Fri, Jul 29, 2016 at 06:39:07PM +0200, Maxime Ripard wrote:
> > it doesn't seem to accept incoming packets. I suspect that programming
> > of its own MAC address (which the driver chooses randomly) suffers from
> > an endianness issue. I'm somewhat stumped as to what is causing it since
> Maybe a good way to confirm that would be to generate outgoing
> traffic, dump that and see what the mac address is? If it's not
> programmed properly, you should see it in the packets.
That's what I've done: When trying to ping another machine, with tcpdump
I see ARP requests coming from the cubieboard with the right MAC and I
see the target machine sending ARP responses to the right MAC. But I do
not see them coming in with tcpdump on the cubieboard.
The same process works fine with a little-endian kernel (same .config and
dtb) and userland, so I'm sure it's an endianess issue somewhere.
I'll do some more comparison of little- and big-endian kernel behaviour
and dig a bit deeper into the code.
--
Thanks,
Michael
next prev parent reply other threads:[~2016-07-29 18:55 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-21 18:23 [PATCH 0/3 v2] Fixes for running a big-endian kernel on Cubieboard2 Michael Weiser
2016-07-21 18:23 ` [PATCH 1/3] mmc: sunxi-mmc: change idma descriptor to __le32 Michael Weiser
2016-07-22 8:59 ` Maxime Ripard
2016-07-21 18:23 ` [PATCH 2/3] stmmac: change dma descriptors " Michael Weiser
2016-07-26 12:13 ` Giuseppe CAVALLARO
2016-07-29 7:53 ` Michael Weiser
2016-07-29 8:26 ` Giuseppe CAVALLARO
2016-07-21 18:23 ` [PATCH 3/3] ARM: sunxi: enable big-endian Michael Weiser
2016-07-22 9:01 ` Maxime Ripard
2016-07-22 13:56 ` Michael Weiser
2016-07-25 12:25 ` Maxime Ripard
2016-07-26 19:26 ` Michael Weiser
2016-07-27 1:55 ` Chen-Yu Tsai
2016-07-29 7:59 ` Michael Weiser
2016-07-29 16:39 ` Maxime Ripard
2016-07-29 18:55 ` Michael Weiser [this message]
-- strict thread matches above, loose matches on Subject: below --
2016-07-18 16:23 [PATCH 0/3] Fixes for running a big-endian kernel on Cubieboard2 Michael Weiser
2016-07-18 16:23 ` [PATCH 3/3] ARM: sunxi: enable big-endian Michael Weiser
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