[PATCH v5] net: tftp: Add client support for RFC 7440

[Oliver Graute <oliver.graute@gmail.com>]

On 17/02/21, Oliver Graute wrote:
> On 18/07/20, Ramon Fried wrote:
> > Add support for RFC 7440: "TFTP Windowsize Option".
> > 
> > This optional feature allows the client and server
> > to negotiate a window size of consecutive blocks to send as an
> > alternative for replacing the single-block lockstep schema.
> > 
> > windowsize can be defined statically during compilation by
> > setting CONFIG_TFTP_WINDOWSIZE, or defined in runtime by
> > setting an environment variable: "tftpwindowsize"
> > If not defined, the windowsize is set to 1, meaning that it
> > behaves as it was never defined.
> 
> this commit breaks my TFTP Setup. I run into lot of timeouts and most of
> the times I can't load the kernel or the dtb.
> 
> Using ethernet at 5b040000 device
> TFTP from server 192.168.100.99; our IP address is 192.168.100.96
> Filename 'Image'.
> Load address: 0x80280000
> Loading: #T T T T T T T
> 
> On bisecting between 2020.07 and 2020.10 I stumbled across this commit.
> reverting it fix the issue immediately.
> 
> Some clue why the default windowsize set 1 breaks it for me?

ok found the patch that fixed the issue myself

https://lists.denx.de/pipermail/u-boot/2021-February/439845.html

Best regards,

Oliver