[OpenWrt-Devel] Ralink MT76228 port to Linux 4.0, set new IP address fail

[Baptiste Clenet]

2015-06-11 16:31 GMT+02:00 Roman Yeryomin <leroi.lists at gmail.com>:
> On 11 June 2015 at 16:36, Baptiste Clenet <bapclenet at gmail.com> wrote:
>> Hi,
>>
>> I've edited patches from Linux 3.18 to make the MT7628 work with Linux 4.0.
>> OpenWRT launches, I have access to the shell.
>> Next step, I configure the IP address with /etc/config/network and
>> /etc/init.d/network reload. Ifconfig shows me my new address IP.
>>
>> But, I can't connect via ssh to my board and if I reboot the board, I
>> get errors at boot:
>> [   10.230000] jffs2: jffs2_scan_inode_node(): CRC failed on node at
>> 0x004725bc: Read 0xffffffff, calculated 0x149094b5
>> I would say it appears one hundred times with different calculated CRC.
>> and finally the last line is:
>> [   11.000000] jffs2: notice: (305) jffs2_build_xattr_subsystem:
>> complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan)
>> and 0 of xref (0 dead, 0 orphan) found.
>>
>>
>> Then, I'm able to access to the shell but I still can't connect via
>> ssh. The board constantly reports:
>>
>> [ 2410.010000] ralink_soc_eth 10100000.ethernet eth0: transmit timed out
>> [ 2410.020000] ralink_soc_eth 10100000.ethernet eth0: dma_cfg:00000055
>> [ 2410.030000] ralink_soc_eth 10100000.ethernet eth0: tx_ring=0,
>> base=00dce000, max=128, ctx=126, dtx=126, fdx=123
>> [ 2410.050000] ralink_soc_eth 10100000.ethernet eth0: rx_ring=0,
>> base=01a36000, max=128, calc=121, drx=54
>> [ 2415.010000] ralink_soc_eth 10100000.ethernet eth0: transmit timed out
>> [ 2415.020000] ralink_soc_eth 10100000.ethernet eth0: dma_cfg:00000055
>> [ 2415.030000] ralink_soc_eth 10100000.ethernet eth0: tx_ring=0,
>> base=00dce000, max=128, ctx=126, dtx=126, fdx=123
>> [ 2415.050000] ralink_soc_eth 10100000.ethernet eth0: rx_ring=0,
>> base=01a36000, max=128, calc=121, drx=60
>>
>> It seems to be related to ethernet driver. Does anyone know those errors?
>>
>
> I have the "transmit queue time out" error on ar71xx with 4.0.5 also.
> Situation is very similar because ralink and ar71xx ethernet drivers
> are maintained in OpenWrt only.
> I believe it is related to recent timer/clock changes in kernel (in
> 3.19 AFAIK). But I don't know neither timers nor network Linux stack
> so well to tell what/where is the problem exactly.
>
> If somebody with more experience could point to a possible place to
> look at that would be awesome.
>
>
> Regards,
> Roman

Ok, let's see if someone can bring his knowledge on those parts and help us.
Thanks

Baptiste
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