Re: 3Ware controller S2468 and 3Com 3c982

Claude Pignol <[email protected]>
Newsgroups gmane.linux.drivers.vortex.devel
Organization SeismicCity, Inc.
Message-ID <[email protected]>

Donald Becker wrote:

>On Wed, 20 Nov 2002, Claude Pignol wrote:
>
>  
>
>>02:09.0 Ethernet controller: 3Com Corporation 3c980-TX 10/100baseTX NIC 
>>[Python-T] (rev 78)
>>    
>>
>...
>  
>
>>        Latency: 80 (2500ns min, 2500ns max), cache line size 10
>>    
>>
>
>Grrrr, this should be presented as "minimum grant", and "maximum
>latency". 
>
>  
>
>>00:08.0 RAID bus controller: 3ware Inc 3ware 7000-series ATA-RAID (rev 01)
>>        Latency: 72 (2250ns min), cache line size 10
>>    
>>
>
>We really need to see the max grant here.
>
>  
>
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.



-- 
------------------------------------------------------------------------
Claude Pignol SeismicCity, Inc. <http://www.seismiccity.com>
2900 Wilcrest Dr. Suite 370 Houston TX 77042
Phone:832 251 1471 Mob:281 703 2933 Fax:832 251 0586



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