Re: [Etherboot-developers] Porting report

[<ebi...@ln...>]

Yannis Mitsos <gm...@te...> writes:

> Hi all,
> 
> The "porting"  of the etherboot is proceeding smoothly, I have managed to
> overcome some problems. I have also studied the COFF file format and based on
> the aout_loader I am able to download the minimum needed sections, namely, the
> .text and .data.
> 
> One question that I have is the following (always refering to version 5.0.8):
> Inside the tftp function I had to add in two different places some small
> delays. namely:
> Quoted from the main.c:
> ----------------------------
> 
>         udelay(10000);   <------------1st
> 664:    for (;;)
>     {
>         long timeout;
> #ifdef    CONGESTED
>         timeout = rfc2131_sleep_interval(block?TFTP_REXMT: TIMEOUT, retry);
> #else
>         timeout = rfc2131_sleep_interval(TIMEOUT, retry);
> #endif
>     udelay(2000);   <------------2st
>         if (!await_reply(AWAIT_TFTP, iport, NULL, timeout))
>         {
> ----------------------------
> 
> If I omit the udelays, from the tcpdump I can see that the processor sends a lot
> 
> of tftp requests before it gets an aknowledge from the server.
> 
> Any ideas on this ?

currticks() appears not to be working.

Eric