Problem with nfe stability and throughput

From: Chris Poulsen <mailinglist_at_nesluop.dk>
Date: Sun, 23 Dec 2007 23:49:40 +0100
Hi,

I've installed CURRENT on an asus m2n-vm. My network config is giving me 
problems.

Throughput seems low. I'm seeing up/download rates less than 1 Mbyte/sec 
on my local lan (100Mb). I've tried switching cables/ports in my switch etc.

I've enabled device polling (hz=1000)

Uploads from the box are slow but "stable". Downloads to the box are 
both slow and unstable. After a few seconds i see the following lines in 
my log and all transfers freeze. Doing ifconfig nfe0 down/up brings the 
interface back to life.

nfe0: discard frame w/o leading ethernet header (len 3 pkt len 3)
nfe0: discard frame w/o leading ethernet header (len 0 pkt len 0)
nfe0: discard frame w/o leading ethernet header (len 8 pkt len 8)
nfe0: discard frame w/o leading ethernet header (len 0 pkt len 0)

I've tried applying the patch from this conversation: 
http://www.nabble.com/nfe-busted-on-7.0-BETA4-to14143721.html#a14143721

but i still see the same error. (My dmesg/ifconfig output in the bottom 
of this mail)

Could someone please give me some pointers on how to fix these things?

TIA
-- 
Regards Chris


My dmesg contains:

ata3: [ITHREAD]
nfe0: <NVIDIA nForce MCP67 Networking Adapter> port 0xd880-0xd887 mem 
0xdfffc000-0xdfffcfff,0xdfffe400-0xdfffe4ff,0
xdfffe000-0xdfffe00f irq 23 at device 10.0 on pci0
miibus0: <MII bus> on nfe0
ukphy0: <Generic IEEE 802.3u media interface> PHY 1 on miibus0
ukphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, auto
nfe0: Ethernet address: 00:1d:60:6d:73:ec
nfe0: [FILTER]
nfe0: [FILTER]
nfe0: [FILTER]
nfe0: [FILTER]
nfe0: [FILTER]
nfe0: [FILTER]
nfe0: [FILTER]
nfe0: [FILTER]
pcib2: <ACPI PCI-PCI bridge> at device 11.0 on pci0

and ifconfig -a gives:

nfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
         options=48<VLAN_MTU,POLLING>
         ether 00:1d:60:6d:73:ec
         inet 192.168.1.11 netmask 0xffffff00 broadcast 192.168.1.255
         media: Ethernet 100baseTX <full-duplex>
         status: active
Received on Sun Dec 23 2007 - 21:56:23 UTC

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