dual ethernet cards -

dual ethernet cards -

Post by mel kravit » Fri, 22 May 1998 04:00:00



hi,
does free bsd v2.2.6 support dual ethernet cards , will GENERIC kernel
initialize both tx0(tulip) and tx1 on boot up?
I am going to use FreeBSD box as gateway box bettween two seperate
subnets, hence the need for dual ethernet cards.
<--->56k line<-->router<--->freebsd/gw box<---->ethernet lan
                               W/NATD
Thanks in advance-mel

 
 
 

dual ethernet cards -

Post by Steinar Ha » Fri, 22 May 1998 04:00:00


[mel kravitz]

|   does free bsd v2.2.6 support dual ethernet cards

Yes.

|   will GENERIC kernel
|   initialize both tx0(tulip) and tx1 on boot up?

Um, the tx driver is for the SMC 83c170 (EPIC) based cards. Tulip
normally refers to the DEC 21040/21140 based cards, which use the de
driver. I know several multiport Ethernet cards based on the Tulip
chips, but haven't heard about any based on the SMC 83c170 chip.

Anyway, for the PCI cards, you only need one line in the configuration
file to support multiple cards (or multiple ports on one card). So the
following machine only has

device de0

in the kernel config file:

Probing for devices on PCI bus 1:
de0 <Digital 21040 Ethernet> rev 35 int a irq 10 on pci1:4
de0: ZNYX ZX314 21040 [10Mb/s] pass 2.3
de0: address 00:c0:95:f0:1d:20
de0: enabling 10baseT port
de1 <Digital 21040 Ethernet> rev 35 int a irq 10 on pci1:5
de1: (null)21040 [10Mb/s] pass 2.3
de1: address 00:c0:95:f0:1d:21
de1: enabling 10baseT port
de2 <Digital 21040 Ethernet> rev 35 int a irq 11 on pci1:6
de2: (null)21040 [10Mb/s] pass 2.3
de2: address 00:c0:95:f0:1d:22
de2: enabling 10baseT port
de3 <Digital 21040 Ethernet> rev 35 int a irq 11 on pci1:7
de3: (null)21040 [10Mb/s] pass 2.3
de3: address 00:c0:95:f0:1d:23
de3: enabling 10baseT port
Probing for devices on PCI bus 2:
de4 <Digital 21040 Ethernet> rev 35 int a irq 11 on pci2:4
de4: SMC 8434T-CH1 21040 [10Mb/s] pass 2.3
de4: address 00:00:c0:2b:0e:c0
de4: enabling 10baseT port
de5 <Digital 21040 Ethernet> rev 35 int a irq 10 on pci2:5
de5: SMC 8434T-CH2 21040 [10Mb/s] pass 2.3
de5: address 00:00:c0:4e:10:c0
de5: enabling 10baseT port
Probing for devices on PCI bus 3:
de6 <Digital 21140A Fast Ethernet> rev 32 int a irq 11 on pci3:4
de6: SMC 9332BDT 21140A [10-100Mb/s] pass 2.0
de6: address 00:00:c0:cd:8d:ef
de7 <Digital 21140A Fast Ethernet> rev 32 int a irq 11 on pci3:5
de7: SMC 9332BDT 21140A [10-100Mb/s] pass 2.0
de7: address 00:00:c0:cc:8d:ef

for a total of 6 x 10 Mbps and 2 x 100 Mbps Ethernet ports.

The GENERIC kernel has

device de0
device tx0

(among other things), so it'll handle multiple tx or de ports.



 
 
 

1. Dual ethernet cards

We had the idea of building a linux cluster system along the lines of a
Beowulf machine.  For that we needed (at least) two ethernet cards - so
I loped down to our local friendly PC kit supplier and got a batch of
NE2000 clones.

Now, these cards work fine on their own or as the first port (eth0), but
I can't seem to get them to work on the second net... I get error
messages like:

eth1: Tx timed out, lost interrupt? TSR=0x3, ISR=0x3, t=1000.

The devices are set up thus:

eth0: NE2000 found at 0x220, using IRQ 10.
eth1: NE2000 found at 0x240, using IRQ 11.

I know all about routing, connections TCP/IP etc and I am sure this
isn't the problem (with an error message like that it isn't likely
anyway!)

Anyone else had similar problems?  If so I would weep with happiness if
you could help out before I go mad...

AAAargh WIBBLE - too late!
(but drop me a line anyway)

--
Justin Clancy - Managing Director.
The Clan Partnership Ltd.

"It said 'Requires Windows 95 or better' - So I installed Linux"

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