DCA support for PowerEdges

[Patrick Schreurs]

The below statement is from Intel (source: e1000-devel mailinglist):

"There should be DCA available to enable in BIOS.
If there is none and despite enabling I/OAT you still see "DCA is not 
enabled in BIOS" message, this means there is a BIOS issue. You should 
contact the BIOS vendor."

Could someone from Dell comment on this?

Thanks,

-Patrick

Patrick Schreurs wrote:
> Hello,
> 
> Dell PowerEdges (for example 1950 or R610) don't seem to have a BIOS 
> option to enable DCA. I/OAT can be enabled, but an option to enable DCA 
> does not exist.
> 
> Support teams from Intel's I/OAT or e1000 state that besides enabling 
> I/OAT, DCA must be enabled in the server's BIOS.
> 
> Not being able to enable DCA in the BIOS, results in:
> 
> ~# dmesg |grep DCA
> ioatdma 0000:00:16.0: DCA is disabled in BIOS
> 
> Any advice?
> 
> Thanks.
> 
> -Patrick
> 
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