[PATCH] app/dma-perf: documentation update of DMA perf for idxd

[Bruce Richardson]

On Thu, Jun 27, 2024 at 05:34:04AM +0000, Shaiq Wani wrote:
> Added a note to avoid usage errors by end user.
> 
> Signed-off-by: Shaiq Wani <shaiq.wani at intel.com>
> ---
>  app/test-dma-perf/config.ini | 3 +++
>  doc/guides/tools/dmaperf.rst | 1 +
>  2 files changed, 4 insertions(+)
> 
> diff --git a/app/test-dma-perf/config.ini b/app/test-dma-perf/config.ini
> index a1222ae86c..5008103979 100644
> --- a/app/test-dma-perf/config.ini
> +++ b/app/test-dma-perf/config.ini
> @@ -61,6 +61,9 @@
>  ; If you do not specify a result file, one will be generated with the same name as the configuration
>  ; file, with the addition of "_result.csv" at the end.
>  
> +; Note: For idxd device (Device 0b25), add queue_id (lcore_dma=lcore10 at 0000:00:04.2-q0)
> +
> +

Nit: adding an extra line of whitespace here.

Also, the queue_id addition only applies if using idxd device with the
vfio-pci driver. If using the device with the idxd kernel driver - which is
the recommended way - the wq name is needed instead, IIRC.

/Bruce