ec2t network driver enhancements

Support for the Linysys Etherfast 10/100 Integrated PC cards

3rd. ed. patch:

% diff /sys/src/9/pc/etherec2t.c.orig /sys/src/9/pc/etherec2t.c
23a24
> 	"PCM100",			/* EtherFast 10/100 Integrated PC Card */
119c120
< 	if(cistrcmp(type, "PCMPC100") == 0 || cistrcmp(type, "FA410TX") == 0){
---
> 	if(cistrcmp(type, "PCMPC100") == 0 || cistrcmp(type, "PCM100") == 0 || cistrcmp(type, "FA410TX") == 0){

4th. ed.:

The 4th ed. with current updates now supports this card. But you will need to use the undocumented iochecksum option in plan9.ini