[U-Boot-Users] DHCP/BOOTP with CONFIG_NET_MULTI
wd at denx.de
Thu Jul 29 10:50:04 CEST 2004
in message <000e01c47541$604e1330$4a50848a at settimo.italtel.it> you wrote:
> I'm using u-boot 1.1.0 and I need to boot Linux using DHCP; in my board
> there is more than one eth line available.
OK. Ummm... which type of board is this?
> Until now I have been using TFTP with CONFIG_NET_MULTI defined and all was
> good, but looking the dhcp code for this step I see that dhcp doesn't
> support more than one eth line (get mac address only from the first).
You write "looking the dhcp code" -- did you actually try it out?
The assignment of the current MAC address when switching to a new
network interface happens in "net.c":
290 #ifdef CONFIG_NET_MULTI
291 memcpy (NetOurEther, eth_get_dev()->enetaddr, 6);
293 memcpy (NetOurEther, bd->bi_enetaddr, 6);
The BOOTP/DHCP code just uses the value stored in the "NetOurEther"
variable. To me this looks OK.
> Is there any reason for this or is a bug ?
I'm not sure I understand what you mean. Are you perhaps confusing
this with the random delay code (CONFIG_BOOTP_RANDOM_DELAY) where the
computation of the initial random delay is based on the "ethaddr"
value? This is definitely not a problem...
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: wd at denx.de
How many hardware guys does it take to change a light bulb? "Well the
diagnostics say it's fine buddy, so it's a software problem."
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