linux-kernel - Re: [PATCH net-next] stmmac: call stmmac_init_phy from stmmac_dvr

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Date:   Mon, 20 Mar 2017 18:44:42 +0100
From:   Niklas Cassel <niklas.cassel@...s.com>
To:     Joao Pinto <Joao.Pinto@...opsys.com>
CC:     <peppe.cavallaro@...com>, <alexandre.torgue@...com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next] stmmac: call stmmac_init_phy from
 stmmac_dvr_probe

On 03/20/2017 06:42 PM, Joao Pinto wrote:
> Às 5:29 PM de 3/20/2017, Niklas Cassel escreveu:
>> From: Niklas Cassel <niklas.cassel@...s.com>
>>
>> It is usually possible to do
>> ethtool -s autoneg on
>> so that you trigger an autoneg before calling
>> ip link set dev eth0 up
>>
>> However, stmmac returns -EBUSY if !netif_running.
>> The only reason for this appears to be that stmmac_init_phy
>> is called from stmmac_open instead of from stmmac_dvr_probe.
>>
>> Move stmmac_init_phy to stmmac_dvr_probe so that ethool
>> works as soon as register_netdev has been called.
>> stmmac_check_ether_addr was also moved to probe,
>> so that the ordering doesn't change.
>>
>> Signed-off-by: Niklas Cassel <niklas.cassel@...s.com>
>> ---
> Hi Niklas, did you test this patch?

I tested it on our hardware, but it would be nice
if you could test it on your side, since you are
using the PCI glue layer.