Re: more than 16 ethernet devices?

Paul Gortmaker (linux_email@yahoo.com)
Sat, 31 Jul 1999 00:45:05 -0400

>is it possible to set up more than 16 eth devices? I'm using 18 ethercards
>in one box (it's an industrial PC) and when loading eth modules (some
>rtl8139, ne2k-pci and ne), it allows to setup only eth0..eth15, and after
>loading another module, dev. name isn't listed in /proc/net/dev (device name >is empty).

Yes - go into linux/drivers/net/net_init.c and change

#define MAX_ETH_CARDS 16

to whatever suits your needs. You may also want to up the limit on the
max number of cards handled per module insertion - e.g. in
drivers/net/ne.c there
is #define MAX_NE_CARDS 4 - increase this too if you have more than
four ISA ne2000 cards. (The alternative is to insert the module more
than once.) The limit for the 8139 is 8, and the ne2k-pci driver uses a
linked list of cards (since it accepts no options) and hence has no
similar limit.

Paul.

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