[PATCH v2] doc: documentation update for idxd driver

[Shaiq Wani]

Added a note to avoid usage errors by end user.

Signed-off-by: Shaiq Wani <shaiq.wani at intel.com>

v2 - addressed review comments.
---
 app/test-dma-perf/config.ini | 3 +++
 doc/guides/tools/dmaperf.rst | 2 ++
 2 files changed, 5 insertions(+)

diff --git a/app/test-dma-perf/config.ini b/app/test-dma-perf/config.ini
index a1222ae86c..799a800216 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: When using  idxd device (Device 0b25) with vfio-pci driver, add queue_id (lcore_dma=lcore10 at 0000:00:04.2-q0)
+;       When using  idxd device (Device 0b25) with kernel driver, add work_queue (lcore_dma=lcore4 at wq0.0)
+
 [case1]
 type=DMA_MEM_COPY
 mem_size=10
diff --git a/doc/guides/tools/dmaperf.rst b/doc/guides/tools/dmaperf.rst
index f68353b920..a689fa0baa 100644
--- a/doc/guides/tools/dmaperf.rst
+++ b/doc/guides/tools/dmaperf.rst
@@ -104,6 +104,8 @@ Configuration Parameters
 .. note::
 
    The mapping of lcore to DMA must be one-to-one and cannot be duplicated.
+   When using  idxd device (Device 0b25) with vfio-pci driver, add queue_id (lcore_dma=lcore10 at 0000:00:04.2-q0)
+   When using  idxd device (Device 0b25) with kernel driver, add work_queue (lcore_dma=lcore4 at wq0.0)
 
 ``lcore``
   Specifies the lcore for CPU testing.
-- 
2.34.1