Having some trouble with Tulips.

Attempting to upgrade from NetBSD 1.5.1 to 1.6.2.
System has 2 Tulip boards (1 network/board), which
work in 1.5.1.  In 1.6.2 tlp0 seems to work (ping works)
but tlp1 doesn't work.  Tried the de driver (which works
in 1.5.1) but now de0 doesn't work.  Diffed if_de.c between
1.5.1 and 1.6.2 but didn't find anything too exciting.

Google found the following in current-users:

>Thanks to Matt Thomas, who provided me with a whole slew of DEC Tulip
>boards, I was able to test and fix the 21040 multi-port board support.
>
>So far, I've confirmed it on a ZNYX ZX314:
>
>ppb0 at pci0 dev 8 function 0: Digital Equipment DECchip 21050 PCI-PCI Bridge (rev. 0x01)
>pci1 at ppb0 bus 1
>pci1: memory enabled
>tlp4 at pci1 dev 4 function 0: DECchip 21040 Ethernet, pass 2.3
>tlp4: interrupting at kn20aa irq 16
>tlp4: ZNYX ZX314, Ethernet address 00:c0:95:f0:09:d8
>tlp4: 10baseT, 10baseT-FDX, default 10baseT
>tlp5 at pci1 dev 5 function 0: DECchip 21040 Ethernet, pass 2.3
>tlp5: sharing interrupt with tlp4
>tlp5: ZNYX ZX314, Ethernet address 00:c0:95:f0:09:d9
>tlp5: 10baseT, 10baseT-FDX, default 10baseT
>tlp6 at pci1 dev 6 function 0: DECchip 21040 Ethernet, pass 2.3
>tlp6: sharing interrupt with tlp4
>tlp6: ZNYX ZX314, Ethernet address 00:c0:95:f0:09:da
>tlp6: 10baseT, 10baseT-FDX, default 10baseT
>tlp7 at pci1 dev 7 function 0: DECchip 21040 Ethernet, pass 2.3
>tlp7: sharing interrupt with tlp4
>tlp7: ZNYX ZX314, Ethernet address 00:c0:95:f0:09:db
>tlp7: 10baseT, 10baseT-FDX, default 10baseT
>
>I've nearly finished basic 21041 support, and also got some tips regarding
>the 2114x, and will be working more on that support as well.
>
>Also, Bill Paul of FreeBSD was kind enough to send me a Matrox NIC-100/1,
>which uses the original Lite-On 82c168 PNIC, and uses the built-in NWay
>support, and the ENDEC/PCS/scrambler functions, rather than MII and a PHY.
>So, I'll be able to finish up that code as well.
>
>        -- Jason R. Thorpe <thorpej@nas.nasa.gov>

Is sharing interrupts supposed to work between boards, or only
within a multi-network board?

1.5.1:

 /netbsd: de0 at pci0 dev 6 function 0
 /netbsd: de0: interrupting at eb164 irq 0
 /netbsd: de0: Cogent 21040 [10Mb/s] pass 2.3

 /netbsd: de1 at pci0 dev 7 function 0
 /netbsd: de1: interrupting at eb164 irq 1
 /netbsd: de1: Cogent 21040 [10Mb/s] pass 2.4

 /netbsd: de0: enabling AUI/BNC port
 /netbsd: de0: abnormal interrupt: receive process stopped	[[ works anyway ]]
 /netbsd: de1: abnormal interrupt: receive process stopped	[[ works anyway ]]

--------------------------------

1.6.2:

 /netbsd: de0 at pci0 dev 6 function 0
 /netbsd: de0: interrupting at eb164 irq 0
 /netbsd: de0: Cogent 21040 [10Mb/s] pass 2.3

 /netbsd: de1 at pci0 dev 7 function 0
 /netbsd: de1: interrupting at eb164 irq 1
 /netbsd: de1: Cogent 21040 [10Mb/s] pass 2.4

 /netbsd: de0: enabling AUI/BNC port				[[ de0 doesn't work ]]
 /netbsd: de1: abnormal interrupt: receive process stopped	[[ de1 works anyway ]]

--------------------------------

1.6.2:

 /netbsd: tlp0 at pci0 dev 6 function 0: DECchip 21040 Ethernet, pass 2.3
 /netbsd: tlp0: interrupting at eb164 irq 0
 /netbsd: tlp0: Cogent multi-port, [[ WRONG ?  one network per board ]]
 /netbsd: tlp0: 10baseT, 10baseT-FDX, 10base5, manual

 /netbsd: tlp1 at pci0 dev 7 function 0: DECchip 21040 Ethernet, pass 2.4
 /netbsd: tlp1: sharing interrupt with tlp0
 /netbsd: tlp1: Cogent multi-port,  [[ WRONG ?  one network per board ]]
 /netbsd: tlp1: 10baseT, 10baseT-FDX, 10base5, manual

 /netbsd: tlp1: filter setup and transmit timeout		[[ tlp1 doesn't work ]]