Stack size

[Joe Novosel]

How do you configure RTEMS to listen for broadcast packets?  This might 
explain why bootp won't work on my platform.

Thanks,
Joe

On Wednesday 06 February 2002 09:44, Eric Norum wrote:
> Vinod Singh wrote:
> > Hi,
> >
> > Can anybody tell me that what is the size of TCP/IP stack of freeBSD
> > ported by Rtems ? We need to know this size for porting on 68k motorola
> > proccessors.
> >
> > Any pointer in this regard will be highly appreciated.
> >
> > regards
> > Vinod
>
> The full FreeBSD network stack is quite large.  Here are the sizes of an
> application with:
>
>   text	   data	    bss	    dec	    hex	filename
>  203152	   5600	  14160	 222912	  366c0	o-optimize/test.exe
>
> and without:
>
>    text	   data	    bss	    dec	    hex	filename
>   89568	   3904	   9712	 103184	  19310	o-optimize/test.exe
>
> the network stack.  As well, the stack requires heap space.  The actual
> amount depends on whether or not you want to receive broadcast packets,
> the amount of broadcast traffic on your network, how much traffic your
> node will receive/transmit, how many  buffers are allocated by the
> network receiver task, etc.   I'd say the absolute minimum would be 64
> kbytes and `enough' could be 512 kbytes or more.
>
> I'd like to do some research into extending the task both ways;  Larger
> using the latest FreeBSD code including IPv6, IPsec, full termios
> drivers, etc ; Smaller using the LWip stack for smaller applications.

-- 
Joe Novosel
Test Engineer
Broadcom Corporation
Residential Broadband Unit
770-232-0018 
jnovosel at broadcom.com