[U-Boot] "tftp: adjust settings to be suitable for 100Mbit ethernet" breaks imx6

Bin Meng
2015-09-06T10:58:45Z

Hi Peng,

On Sun, Sep 6, 2015 at 4:18 PM, Peng Fan <b51431@freescale.com> wrote:
> Hi,
>
> With the following patch, I met tftp errors on mx6qsabresd and mx6ul boards:
> "
> => setenv serverip 10.193.102.217; setenv ipaddr 10.193.102.31;tftp ${loadaddr} zImage
> Using FEC device
> TFTP from server 10.193.102.217; our IP address is 10.193.102.31
> Filename 'zImage'.
> Load address: 0x12000000
> Loading: *
> TFTP error: 'Failure to negotiate RFC1782 options' (8)
> Starting again
> "
>
> Without the following patch, tftp work fine on mx6qsabresd and mx6ul board.
>
> "
> commit 620776d734e4b126c407f636bda825a594a17723
> Author: Pavel Machek <pavel@denx.de>
> Date: Tue Aug 18 14:34:26 2015 +0200
>
> tftp: adjust settings to be suitable for 100Mbit ethernet
>
> Adjust timouts and retry counts to be suitable for loaded ethernet
> network. With 5 seconds timeout, 10 retries maximum, tftp is
> impossible even on local network with single full-speed TCP
> connection.
>
> 100msec timeout should be suitable for most networks tftp is used on,
> that is local ethernets. Timeout count really needs to be way higher,
> as lost packets are normal when TCP is running over the same network.
>
> Enforce 10msec minimum.
>
> Signed-off-by: Pavel Machek <pavel@denx.de>
> Acked-by: Joe Hershberger <joe.hershberger@ni.com>
> "
>

The revert patch [1] has already been applied in the u-boot-x86/master
branch, waiting for upstream.

[1] http://git.denx.de/?p=u-boot/u-boot-x86.git;a=commitdiff;h=527ba17bfd058bd87d5ed4c65aa6f31bebb25dfe

Regards,
Bin