Commit 97cfe861 authored by Robin Getz's avatar Robin Getz Committed by Ben Warren
Browse files

Save server's MAC address in environment

Linux's netconsole works much better when you can pass it the MAC address of
the server. (otherwise it just uses broadcast, which everyone else on my
network complains about :)

This sets the env var "serveraddr" (to match ethaddr), so that you can pass
it to linux with whatever bootargs you want to....

addnetconsole=set bootargs $(bootargs) netconsole=@$(ipaddr)/eth0,@$(serverip)/$(serveraddr)
Signed-of-by: default avatarRobin Getz <>
Signed-off-by: default avatarBen Warren <>
parent 0b23fb36
......@@ -1184,6 +1184,11 @@ The following options need to be configured:
Defines a default value for the IP address of a TFTP
server to contact when using the "tftboot" command.
Keeps the server's MAC address, in the env 'serveraddr'
for passing to bootargs (like Linux's netconsole option)
- Multicast TFTP Mode:
......@@ -1287,6 +1287,15 @@ NetReceive(volatile uchar * inpkt, int len)
/* are we waiting for a reply */
if (!NetArpWaitPacketIP || !NetArpWaitPacketMAC)
if (NetServerIP == NetArpWaitPacketIP) {
char buf[20];
sprintf(buf, "%pM", arp->ar_data);
setenv("serveraddr", buf);
#ifdef ET_DEBUG
printf("Got ARP REPLY, set server/gtwy eth addr (%pM)\n",
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