DCA support for PowerEdges

[Patrick Schreurs]

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