Re: [Etherboot-developers] Re: TCP and HTTP support

[Markus G. <ma...@gu...>]

Ken Yap wrote:
> I won't accept it for 5.0, it's too large a change.

Agreed. I hadn't really expected it to go in that version of the tree; 
it was just easier to test with for me.

> I'll accept for 5.3

Sweet ;-)

> if you patch against 5.3.0 (5.1.10 is close enough) and remove all the
> large buffers from the stack

I had been wondering how to do that best. I don't really need much 
space. The only large structures are the ones that hold the current HTTP 
header/state (about 100 bytes), any URL found in redirects (80 bytes), 
and the buffer used for assembling outgoing packets (1500 bytes). The 
latter is the problem. I know that none of my packets are large, so I 
guess I could just shrink this buffer (576 would make a lot of sense), 
and impose a maximum segment size for outgoing TCP packets. Would that 
be acceptable?

Alternatively, I could allocate the buffer in the BSS.

What is the prefered solution?


> and of course it's #ifdefed so that there's
> no cost for anybody not choosing to use TCP. There's only a 4kB stack
> available.

I'll try to do these changes once we have set up some machines at LinuxExpo.


Markus