[vortex] Re: 3Ware controller S2468 and 3Com 3c982

Claude Pignol cpignol@seismiccity.com
Thu Nov 21 00:04:01 2002


Donald Becker wrote:

>On Wed, 20 Nov 2002, Claude Pignol wrote:
>
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>>02:09.0 Ethernet controller: 3Com Corporation 3c980-TX 10/100baseTX NIC 
>>[Python-T] (rev 78)
>>    
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>...
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>>        Latency: 80 (2500ns min, 2500ns max), cache line size 10
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>Grrrr, this should be presented as "minimum grant", and "maximum
>latency". 
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>>00:08.0 RAID bus controller: 3ware Inc 3ware 7000-series ATA-RAID (rev 01)
>>        Latency: 72 (2250ns min), cache line size 10
>>    
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>We really need to see the max grant here.
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Marcel de Riedmatten has suggested to change the latency value of 3c982 using setpci. It changes the value (80 for eth0 can be change to 72 ) but the min or max latency doesn't change. It seems that setpci can not change these registers.
Anyway changing to 72 or a lower value doesn't fix the problem.

CP.



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Claude Pignol SeismicCity, Inc. <http://www.seismiccity.com>
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