Indeed, DCA is active and the tag changes as your described.
./ethregs | egrep 'DCA_RXCTRL\[000\]'
DCA_RXCTRL[000]1f0002a0
DCA_RXCTRL[000]1f0002a0
./ethregs | egrep 'DCA_TXCTRL\[000\]'
DCA_TXCTRL[000]1f002220
DCA_TXCTRL[000]1f002220
set_irq_affinit
DDIO and DCA can run at the same time if I recall. The only thing you
have to watch out for is if the DCA is misconfigured in the BIOS.
Based on the fact that you have 0x1F in the tag field I am guessing
you probably don't have too many sockets on the system. If you have
multiple sockets it is p
Did I ruin DDIO with DCA=2 parameter to X520?
Looking at the driver code, I just enabled DCA instead.
> On 1 Nov 2016, at 20:56, Alexander Duyck wrote:
>
> On Tue, Nov 1, 2016 at 12:04 PM, Michał Purzyński
> wrote:
>> Looking through some old posts on e1000 I found that one can detect if DCA
>
On Tue, Nov 1, 2016 at 12:04 PM, Michał Purzyński
wrote:
> Looking through some old posts on e1000 I found that one can detect if DCA
> is enabled with ethregs. Are these registers per queue? Here, the X520 is
> configured with a single queue and the highest bits are set only for
> DCA_RXCTRL[000]
