[OpenWrt-Devel] Fwd: Re: [PATCH 10/10] brcmfmac: Add support for multiple PCIE devices in nvram.

[Rafał Miłecki]

On 29 April 2015 at 12:51, Hante Meuleman <meuleman at broadcom.com> wrote:
> Status report: spent lots of time trying to figure out how to use cpu
> port 8 and use vlan1ports "0 1 2 3 5 7 8t", and found that I got fooled
> by the way I tried to determine if it was working or not. To see if the
> switch configuration was working I used to type "ifconfig" and then
> see if there were and rx packets. Today I added logging in bgmac to
> see if there are any rx interrupts, and to my surprise there are. So it
> is possible to get it to work with cpu port 8 but the data is being
> dropped by the stack (nothing visible in the counters). This is sample
> data that gets received:
>
> [   32.759614] bgmac: ETH, len=324, flags=0x01, protocol=0x0008
> [   32.766714] bgmac: 45 00 01 36  bc f2 40 00  ff 11 19 8a  c0 a8 02 96
> [   32.774796] bgmac: e0 00 00 fb  14 e9 14 e9  01 22 b5 86  00 00 84 00
> [   32.782892] bgmac: ETH, len=344, flags=0x01, protocol=0xdd86
> [   32.789989] bgmac: 60 00 00 00  01 22 11 ff  fd 1b 72 e5  79 5c 00 00
> [   32.798077] bgmac: 75 58 39 77  51 db f7 b2  ff 02 00 00  00 00 00 00

Packets received by bgmac are supposed to be VLAN tagged. Are they in your case?

I think you're dumping beginning on every packet. Compare dump (early
bytes, look for 802.1Q header [0]) when using 5t vs. 8t.

[0] http://en.wikipedia.org/wiki/IEEE_802.1Q
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