Add instruction how to bind ENA to VFIO-PCI driver.
Fixes: cf8a122c296a ("ena: introduce documentation")
Cc: sta...@dpdk.org
Signed-off-by: Zorik Machulsky <zo...@amazon.com>
Signed-off-by: Rafal Kozik <r...@semihalf.com>
Acked-by: Michal Krawczyk <m...@semihalf.com>
---
doc/guides/nics/ena.rst | 12 +++++++++---
doc/guides/nics/features/ena.ini | 1 +
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/doc/guides/nics/ena.rst b/doc/guides/nics/ena.rst
index d19912e..0dfefc6 100644
--- a/doc/guides/nics/ena.rst
+++ b/doc/guides/nics/ena.rst
@@ -187,11 +187,17 @@ Prerequisites
-------------
#. Prepare the system as recommended by DPDK suite. This includes environment
- variables, hugepages configuration, tool-chains and configuration
+ variables, hugepages configuration, tool-chains and configuration.
-#. Insert igb_uio kernel module using the command 'modprobe igb_uio'
+#. ENA PMD can operate with vfio-pci or igb_uio driver.
-#. Bind the intended ENA device to igb_uio module
+#. Insert vfio-pci or igb_uio kernel module using the command
+ 'modprobe vfio-pci' or 'modprobe igb_uio' respectively.
+
+#. If vfio-pci driver is used please make sure noiommu mode is enabled:
+ echo 1 > /sys/module/vfio/parameters/enable_unsafe_noiommu_mode
+
+#. Bind the intended ENA device to vfio-pci or igb_uio module.
At this point the system should be ready to run DPDK applications. Once the
diff --git a/doc/guides/nics/features/ena.ini b/doc/guides/nics/features/ena.ini
index 691c1e3..aa6f05a 100644
--- a/doc/guides/nics/features/ena.ini
+++ b/doc/guides/nics/features/ena.ini
@@ -23,5 +23,6 @@ Inner L4 checksum = Y
Basic stats = Y
Extended stats = Y
Linux UIO = Y
+Linux VFIO = Y
x86-32 = Y
x86-64 = Y
--
2.7.4
