[dpdk-stable] patch 'doc: add VFIO in ENA guide' has been queued to LTS release 16.11.9

[Luca Boccassi <bluca@debian.org>]

Hi,

FYI, your patch has been queued to LTS release 16.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 10/17/18. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the patch applied
to the branch. If the code is different (ie: not only metadata diffs), due for example to
a change in context or macro names, please double check it.

Thanks.

Luca Boccassi

---
>From 19b650abdc9bb1f7eac08a8d7fcf78c8e8cf55b2 Mon Sep 17 00:00:00 2001
From: Rafal Kozik <rk@semihalf.com>
Date: Wed, 10 Oct 2018 14:08:15 +0200
Subject: [PATCH] doc: add VFIO in ENA guide

[ upstream commit 4d0155db76da10b4e549b5b8814962748bcf2192 ]

Add instruction how to bind ENA to VFIO-PCI driver.

Fixes: cf8a122c296a ("ena: introduce documentation")

Signed-off-by: Zorik Machulsky <zorik@amazon.com>
Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
---
 doc/guides/nics/ena.rst          | 15 ++++++++++++---
 doc/guides/nics/features/ena.ini |  1 +
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/doc/guides/nics/ena.rst b/doc/guides/nics/ena.rst
index 073b35ae2a..9062d7bf03 100644
--- a/doc/guides/nics/ena.rst
+++ b/doc/guides/nics/ena.rst
@@ -187,11 +187,20 @@ 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.
+
+#. For ``vfio-pci`` users only:
+   Please make sure that ``IOMMU`` is enabled in your system,
+   or use ``vfio`` driver in ``noiommu`` mode::
+
+     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 74969fd068..d607fcc321 100644
--- a/doc/guides/nics/features/ena.ini
+++ b/doc/guides/nics/features/ena.ini
@@ -22,5 +22,6 @@ Inner L4 checksum    = Y
 Basic stats          = Y
 Extended stats       = Y
 Linux UIO            = Y
+Linux VFIO           = Y
 x86-32               = Y
 x86-64               = Y
-- 
2.19.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2018-10-15 12:48:35.152218755 +0100
+++ 0021-doc-add-VFIO-in-ENA-guide.patch	2018-10-15 12:48:34.601096017 +0100
@@ -1,12 +1,13 @@
-From 4d0155db76da10b4e549b5b8814962748bcf2192 Mon Sep 17 00:00:00 2001
+From 19b650abdc9bb1f7eac08a8d7fcf78c8e8cf55b2 Mon Sep 17 00:00:00 2001
 From: Rafal Kozik <rk@semihalf.com>
 Date: Wed, 10 Oct 2018 14:08:15 +0200
 Subject: [PATCH] doc: add VFIO in ENA guide
 
+[ upstream commit 4d0155db76da10b4e549b5b8814962748bcf2192 ]
+
 Add instruction how to bind ENA to VFIO-PCI driver.
 
 Fixes: cf8a122c296a ("ena: introduce documentation")
-Cc: stable@dpdk.org
 
 Signed-off-by: Zorik Machulsky <zorik@amazon.com>
 Signed-off-by: Rafal Kozik <rk@semihalf.com>
@@ -17,7 +18,7 @@
  2 files changed, 13 insertions(+), 3 deletions(-)
 
 diff --git a/doc/guides/nics/ena.rst b/doc/guides/nics/ena.rst
-index d19912e9b0..695960d4c9 100644
+index 073b35ae2a..9062d7bf03 100644
 --- a/doc/guides/nics/ena.rst
 +++ b/doc/guides/nics/ena.rst
 @@ -187,11 +187,20 @@ Prerequisites
@@ -45,10 +46,10 @@
  
  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 691c1e3d37..aa6f05a714 100644
+index 74969fd068..d607fcc321 100644
 --- a/doc/guides/nics/features/ena.ini
 +++ b/doc/guides/nics/features/ena.ini
-@@ -23,5 +23,6 @@ Inner L4 checksum    = Y
+@@ -22,5 +22,6 @@ Inner L4 checksum    = Y
  Basic stats          = Y
  Extended stats       = Y
  Linux UIO            = Y