Timeout from an with Cisco Aironet MPI350

James Earl jamesearl at shaw.ca
Wed Feb 25 10:04:29 PST 2004


Hi,

What happens when you use the 4.9-RELEASE an driver?   When I try going from 4.9-RELEASE to 4.9-STABLE with my R40 and MPI350 I don't get timeouts, but I do get failed to read RID messages...

James

----- Original Message -----
From: "Sonny T. Larsen" <sonny at unix.dk>
Date: Wednesday, February 25, 2004 4:56 am
Subject: Timeout from an with Cisco Aironet MPI350

> Hey,
> 
> I am running 4.9-STABLE on my new IBM T40, and I just put in a Cisco
> Aironet MPI350-card, since I have used regular 350 cards with the an
> driver with excellent results over the last year or so.
> 
> The problem is, that although the card seems to be identified 
> correctly,and I am able to ifconfig the interface, I am getting a 
> lot of timeouts
> from the an driver.
> 
> Performance is very low, and the machine more or less freezes up when
> the timeouts happen.
> 
> I have collected a bit of info below:
> 
> uname -a:
> FreeBSD narya.staff.tdk.net 4.9-STABLE FreeBSD 4.9-STABLE #5: Mon 
> Feb 23
> 13:38:28 CET 2004 
> sonny at narya.staff.tdk.net:/usr/src/sys/compile/NARYA  i386
> 
> >From dmesg:
> 
> an0: <Cisco Aironet MPI350> port 0x8000-0x80ff mem 0xc0400000-
> 0xc07fffff,0xc0200000-0xc0203fff irq 11 at device 2.0 on pci2
> an0: got RSSI <-> dBM map
> an0: Ethernet address: 00:02:8a:dc:90:83
> 
> Feb 25 12:19:59 narya /kernel: an0: device timeout
> Feb 25 12:20:33 narya last message repeated 5 times
> Feb 25 12:21:33 narya last message repeated 9 times
> 
> 
> This is the output from a ping (10.253.0.1 is a box on the same
> network):
> 
> 64 bytes from 10.253.0.1: icmp_seq=0 ttl=255 time=2.156 ms
> 64 bytes from 10.253.0.1: icmp_seq=2 ttl=255 time=4758.609 ms
> 64 bytes from 10.253.0.1: icmp_seq=3 ttl=255 time=3749.048 ms
> 64 bytes from 10.253.0.1: icmp_seq=4 ttl=255 time=2739.507 ms
> 64 bytes from 10.253.0.1: icmp_seq=5 ttl=255 time=1729.866 ms
> 64 bytes from 10.253.0.1: icmp_seq=6 ttl=255 time=998.952 ms
> 64 bytes from 10.253.0.1: icmp_seq=8 ttl=255 time=4766.989 ms
> 64 bytes from 10.253.0.1: icmp_seq=9 ttl=255 time=3759.227 ms
> 64 bytes from 10.253.0.1: icmp_seq=10 ttl=255 time=2749.646 ms
> 64 bytes from 10.253.0.1: icmp_seq=11 ttl=255 time=1740.125 ms
> 
> For comparison, here is a ping done from the laptop, but using a
> different card (with the wi-driver):
> 
> 64 bytes from 10.253.0.1: icmp_seq=0 ttl=255 time=7.482 ms
> 64 bytes from 10.253.0.1: icmp_seq=1 ttl=255 time=3.290 ms
> 64 bytes from 10.253.0.1: icmp_seq=2 ttl=255 time=3.153 ms
> 64 bytes from 10.253.0.1: icmp_seq=3 ttl=255 time=2.997 ms
> 64 bytes from 10.253.0.1: icmp_seq=4 ttl=255 time=3.965 ms
> 64 bytes from 10.253.0.1: icmp_seq=5 ttl=255 time=4.122 ms
> 64 bytes from 10.253.0.1: icmp_seq=6 ttl=255 time=3.702 ms
> 64 bytes from 10.253.0.1: icmp_seq=7 ttl=255 time=3.048 ms
> 
> In short, packet-loss, timeouts and very bad performance with the
> an-driver - strange, since it works nicely with a regular Cisco-card
> (AIR-PCM352).
> 
> Any ideas?
> 
> I saw somebody mention, that maybe downgrading the firmware on the 
> cardwould help - although I am willing to find a colleague with a
> windows-box to do this, I am somewhat perplexed.
> 
> It does look more like a driver-problem to me - and the suggested
> firmware (5.0001) is very old indeed.
> 
> TIA,
> 
> -- 
> Bye, Sonny!
> 
> "Respect is fine, but actually I've always wanted to be feared."
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