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From: John Rama <john.rama01@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Q on expected u-boot behavior on ping response
Date: Thu, 1 Sep 2016 12:25:03 +0900	[thread overview]
Message-ID: <57C79F8F.1080305@gmail.com> (raw)
In-Reply-To: <CAFOYHZAFPJw_W+A5AVDjkkoYgXP47wZfpMxM7RLTdn5c=NnsRg@mail.gmail.com>

Thanks, Chris !!
Understood. 

John

On 2016/09/01 10:42, Chris Packham wrote:
> On Tue, Aug 30, 2016 at 10:19 PM, John Rama <john.rama01@gmail.com> wrote:
>> Dear u-boot network experts,
>>
>> I'm now working on NXP MX6Q Sabreauto board with AR8031 network card.
>> I'm using rel_imx_4.1.15_1.2.0_ga.
>>
>> Basically, the network works fine. u-boot can send ping to other device, do the tftp boot as well.
>>
>> But, I just realized that u-boot never respond on ping command from external device.
>> Only the exception is that while u-boot is trying to communicate to other device via network
>> (sending a ping command to others, or doing tftp boot, etc)
>>
>> I'm not dug into detail yet.
>> But before doing so, I would like to confirm if this is a intentional behavior or not.
> 
> Yes this is intentional. u-boot only starts the network driver when it
> needs to use it (i.e. to send a ping or download something over tftp).
> After it has finished the network driver is stopped. Any traffic on
> the network will be ignored if u-boot isn't actively trying to perform
> a network operation, even if it is addressed to the device.
> 
>> I have only tried the MX6Q Sabre auto device, since this is the only device I have now.
>>
>> Thanks for the feedback.
>>
>> John
>> _______________________________________________
>> U-Boot mailing list
>> U-Boot at lists.denx.de
>> http://lists.denx.de/mailman/listinfo/u-boot

  reply	other threads:[~2016-09-01  3:25 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-30 10:19 [U-Boot] Q on expected u-boot behavior on ping response John Rama
2016-09-01  1:42 ` Chris Packham
2016-09-01  3:25   ` John Rama [this message]
  -- strict thread matches above, loose matches on Subject: below --
2016-08-30 11:39 John Rama

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