Re: [Etherboot-developers] bootrom for Dlink DE530CT+

[Marty C. <md...@th...>]

On 9/1/2001 7:24 AM Christian Schoebel e99...@st... wrote:
>what I've also realised is that the dc21041 boot rom
>(dc21041.lzrom) only needs about 500 bytes more than a
>16 KB boot rom.
>my question:
>what are the possibilities I have for reducing the dc21041.lzrom
>size in order to be able to put it into an 16 KB rom?
>reducing the tulip driver? does anyone have experience with that?
>or saving space in any other part?
>please give me some ideas!

Note that:

  /* Size of transmit and receive buffers */
  #define BUFLEN 1536

and there are 4 of them currently:

  #define RX_RING_SIZE    4

If you set RX_RING_SIZE to 3 you might save 1.5K.

There are also a lot of debugging printfs that could be taken out.  And 
there is code that is only run for particular kinds of cards which could 
be #ifdef'ed.

Let us know if that helps.

Marty

P.S. There is a media-selection bug that could probably be fixed by 
putting this call:

      init_media(nic);

just before

    /* enable transmit and receive */
    outl(tp->csr6 | 0x00002002, ioaddr + CSR6);

at the end of the "tulip_reset" function.

The media selection bug seems mostly to affect old Cisco 5000 series 
switches, which are problematic with a number of NICs.  If someone could 
test this, I'd be grateful...



---
    Try: http://rom-o-matic.net/ to make Etherboot images instantly.

   Name: Marty Connor
US Mail: Entity Cyber, Inc.; P.O. Box 391827; Cambridge, MA 02139; USA
  Voice: (617) 491-6935, Fax: (617) 491-7046 
  Email: md...@th...
    Web: http://www.thinguin.org/