[U-Boot] [PATCH RFC] TFTP: allow for adjustable retransmission timout

[Ben Warren]

Hi Wolfgang,

Wolfgang Denk wrote:
> Dear Ben,
>
> In message <1256115432-31992-1-git-send-email-wd at denx.de> I wrote:
>   
>> So far, TFTP negotiated a fixed retransmission timeout of 5 seconds.
>> In some cases (busy networks, slow TFTP servers) this caused very
>> slow transfers. Add new environment variable "tftptimeout" allows to
>> set this timeout. Lowering this value may make downloads succeed
>> faster in networks with high packet loss rates or with unreliable
>> TFTP servers.
>>
>> Signed-off-by: Wolfgang Denk <wd at denx.de>
>> Cc: Ben Warren <biggerbadderben at gmail.com>
>> ---
>>
>> I'm not sure if this change is really a good thing. It seems to help
>> a lot in a test case I had here, but I'm not sure if the previous
>> timeout settings that also depended on TftpRRQTimeoutMSecs were
>> simply wrong (and not well tested - in myunderstanding they should
>> affect only the connection timeout, but not the packet retransmission
>> timeout), or if these are actually useful or needed in some
>> configurations. So far, TftpRRQTimeoutMSecs is used in
>> common/update.c only.
>>
>>  README     |   19 ++++++++++++++++---
>>  net/tftp.c |   22 +++++++++++++++++-----
>>  2 files changed, 33 insertions(+), 8 deletions(-)
>>     
>
> Any comment son that patch? Should I submit it for inclusion?
>
> See http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/70097
>
> Best regards,
>
> Wolfgang Denk
>
>   
I have a bunch of things in my 'for next' inbox that need to be 
processed (as your e-mails indicate).  I plan on going through them tonight.

regards,
Ben