Problem with Intel 82540EM Gigabit Ethernet Controller

[Subhro]

Enable Devcice Polling iof it is supported by your NIC. Refer to the
NOTES to find out which NICs support that feature.

Regards
S.

On Tue, 31 Aug 2004 23:49:25 -0700 (PDT), Gabor Esperon
<gesperon at yahoo.com> wrote:
> Hi!
> 
> I have an Intel 82540EM Gigabit Ethernet Controller
> working at 100Mb/s on FreeBSD 5-CURRENT and FreeBSD
> 5-BETA3:
> 
> em0:
> flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu
> 1500
> 
> options=1b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING>
>        inet 192.168.1.32 netmask 0xffffff00 broadcast
> 192.168.1.255
>        ether 00:07:e9:09:a7:37
>        media: Ethernet autoselect (100baseTX
> <full-duplex>)
>        status: active
> 
> thats ok, but in both systems I can only get transfers
> at 2.xMb/s (MBytes) as the following "netstat -w1 -I
> em0" show:
>            input          (em0)           output
>   packets  errs      bytes    packets  errs
> bytes colls
>       782     0      46920       1438     0
> 2177132     0
>       788     0      53500       1452     0
> 2209768     0
>       886     0      53160       1628     0
> 2464792     0
>       788     0      53904       1452     0
> 2208882     0
>       799     0      50672       1452     0
> 2198328     0
>       789     0      53572       1451     0
> 2206080     0
>       785     0      47100       1442     0
> 2186216     0
>       795     0      53944       1462     0
> 2218898     0
>       787     0      47220       1451     0
> 2195386     0
>       780     0      53004       1437     0
> 2189490     0
>       797     0      47820       1466     0
> 2216496     0
>       790     0      53692       1452     0
> 2209900     0
>       787     0      47220       1448     0
> 2195300     0
>       792     0      53832       1456     0
> 2210390     0
>       766     0      45960       1408     0
> 2131712     0
>       789     0      53472       1452     0
> 2211110     0
>       790     0      47400       1452     0
> 2198168     0
>       784     0      53352       1445     0
> 2198982     0
>       786     0      47160       1444     0
> 2183992     0
>       791     0      53652       1452     0
> 2209708     0
> 
> What could be the problem here?
> 
> =====
> Gabor
> Net/Sys Admin
> 
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-- 
Subhro Sankha Kar
School of Information Technology
Block AQ-13/1 Sector V
ZIP 700091
India