home *** CD-ROM | disk | FTP | other *** search
- Xref: sparky comp.unix.bsd:4884 comp.sys.sun.hardware:4147
- Newsgroups: comp.unix.bsd,comp.sys.sun.hardware,comp.protocols.tcpip
- Path: sparky!uunet!cs.utexas.edu!torn!cunews!revcan!latour!mcr
- From: mcr@Sandelman.OCUnix.on.ca (Michael Richardson)
- Subject: [386bsd] NS8390 ethernet evaluation board
- Message-ID: <1992Aug31.015413.18294@Sandelman.OCUnix.on.ca>
- Followup-To: comp.unix.bsd
- Summary: I think it works, maybe my 3/60 doesn't?
- Keywords: 8390, NE2000, 386bsd, Sun, 3/60
- Organization: Sandelman Software Works, Debugging Department, Ottawa, ON
- Date: Mon, 31 Aug 1992 01:54:13 GMT
- Lines: 84
-
-
- [please note the followup, and email if the have a better suggestion]
- I have two National Semiconductor (Nominal Semidestructor? cute comment)
- network evaluation boards. These are 8 bit cards with 8k of ram, an 8390 and
- associated logic. I have placed one in my 386 running 386bsd 0.0
- (I will be going to 0.1 when my network starts working) The other is
- sitting in my Amiga 2000 (via GoldenGate).
- The 386bsd's hostname is bud. (as in _Married With Children_)
-
- I started with the NE2000 driver and started bashing. At first,
- I was amazed at how little code I actually had to modify. (Mostly
- just finding all the hardwired assumptions about 32k of ram that the
- NE2000 has) My board does not have a reset location, so I needed a bit more
- code to put the NIC in a known state.
-
- I just saw someone's suggestion [in comp.unix.bsd] about changing the u_short
- to a u_char --- that made instant sense to me, but it didn't solve the
- basic problem I have been having: ARP isn't quite working.
- The other machine in my basement is my trusty Sun 3/60 (hostname: latour).
- I can't confirm that it has ever worked on a network of any kind, but I
- suspect that it would have been diskless over two years ago (before it
- was mine)
-
- I have traced things (via printf) into arpinput() and arpwhohas()
- [in netinet/if_ether.c]. If I start a ping from the 386, it correctly
- starts sending arp packets onto the network. Using rpc.etherd and
- traffic (ug! suntools. I have X11R4 not openwindows) I can confirm
- that arp packets are making it onto the network. No responses are
- received.
-
- If I ping from the 3/60 to the 386bsd, my debugging shows packets
- going into arpinput() where it discovers that the request is for the
- 386bsd and a response is transmitted. Also, rpc.etherd says things like
- "rpc.etherd: bad lnth 42 dest ffffffffffffsrc 0800200622c6"
- although sometimes the src is garbled. The above src is the Sun's
- ethernet address.
-
- Of note, if I ping in both directions at the same time, then the
- 386bsd system realizes that it has an ethernet address for the 3/60's
- IP address and just transmits. More debugging shows that it even has
- the right ethernet address. Also, traffic then reports seeing icmp
- packets.
-
- The 3/60 also transmits period 70 byte and 202 byte packets out
- the interface. These should be routing packets from gated (I have
- a hardwired slip connection to the Amiga which runs AmigaNOS, and
- have had dialup slip connections to friends and work, which is why
- I run gated). I believe that these packets are broadcast packets.
- I tried bringing up routed to see if it saw anything, but didn't spend
- much time on it.
-
- I'm starting to suspect that the Sun can't ARP properly.
- I have tried adding the arp address in with arp(8) on the Sun.
- 386bsd 0.0 doesn't have arp, so I haven't been able to do the reverse.
-
- Of note is that I am trying to use a subnet --- ocunix has an
- autonomous class C address that is partitioned into 16 address chunks.
- I am 128-143. I have tried going with no subnets, with no difference.
- I have also tried turning on trailers, and have confirmed that arp is
- enabled on both machines. ifconfig says: <UP,BROADCAST,RUNNING,PROMISC>
- and NOARP is added if I do ifconfig le0 -arp and goes away for ifconfig
- le0 arp. PROMISC goes away when I kill rpc.etherd.
-
- Further data:
- 3/60 (latour): 192.139.46.129, 08:00:20:06:22:c6
- Jolix (bud): 192.139.46.130, 08:00:17:40:0b:d4
-
- There are no other machines on the thinnet segment which is all of
- two feet long (although six inches would do the trick)
-
- I may have a chance to bring my 386 to work this week (but
- work is 25km by bicycle away, so I'd rather not). We have something called
- `EtherVision' that can run on PCs, and I'm familliar with the iptracing
- stuff in the RS/6000s machines that I manage. I'm also going to try and find
- a WD8013 card to borrow, but I think they are all committed.
-
- Does anyone have any other suggestions as to a course of action
- here?
-
- --
- :!mcr!: | The postmaster never | So much mail,
- Michael Richardson | resolves twice. | so little time.
- HOME: mcr@sandelman.ocunix.on.ca Bell: (613) 237-5629
- SCHOOL: 192228@physics.carleton.ca
-