On 9 March 2016 at 10:00, Giuseppe CAVALLARO [off-list ref] wrote:

On 3/9/2016 9:56 AM, Giuseppe CAVALLARO wrote:

quoted

Hello

On 3/9/2016 9:35 AM, Tomeu Vizoso wrote:

quoted

in order to get the onboard network on the Radxa Rock2 to work at all
on today's linux-next, I had to revert both commits:

* "stmmac: Fix 'eth0: No PHY found' regression" for the drivers to
probe and the link to come up, and

I've just sent two patches (on top of net.git) to fix this problem
pls let me know if these help on your side too.

quoted

* "stmmac: first frame prep at the end of the xmit routine" for the
network interface to work at all.

I cannot reproduce it right now but I am looking at this again and let
you know.
I will check your output file too

hmm, I think that the problem is around the "normal descriptor"
management that is configured on the boxes where the driver is
failing now. Using enhanced descriptors the network is ok.
I will keep you up-to-date.

Hi,

I have done some tests and these are the results:

* net.git (133800d1f028): probe failed

* net.git (133800d1f028) + revert: everything fine

* net.git (133800d1f028) + revert + "stmmac: fix MDIO settings": everything fine

* today's linux-next: probe failed

* today's linux-next + revert of 88f8b1bb41c6 stmmac: Fix 'eth0: No
PHY found' regression: probe succeeded but no network at all

* today's linux-next + revert of 88f8b1bb41c6 (stmmac: Fix 'eth0: No
PHY found' regression) + revert of 0e80bdc9a72d (stmmac: first frame
prep at the end of xmit routine): probe succeeded, dhcp succeeds and
nfsroot works for a few seconds before timing out

Btw, could you CC LKML on future patches that need testing?

Thanks,

Tomeu

peppe

quoted

Regards
peppe

quoted

But a few seconds into the nfsroot boot I start getting:

[    9.136701] systemd[1]: Started Load Kernel Modules.
[   18.116321] nfs: server 10.42.0.1 not responding, still trying
[   18.516224] ------------[ cut here ]------------
[   18.521024] WARNING: CPU: 1 PID: 0 at net/sched/sch_generic.c:303
dev_watchdog+0x284/0x288
[   18.529456] NETDEV WATCHDOG: eth0 (rk_gmac-dwmac): transmit queue 0
timed out

I'm attaching the full boot log.

Regards,

Tomeu

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