[dpdk-stable] patch 'doc: clarify libnuma requirement for NUMA systems' has been queued to LTS release 18.11.1

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/14/19. 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. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Thanks.

Kevin Traynor

---
>From 39ce967019925bc923a7d0a41b09bfa4f0c106c6 Mon Sep 17 00:00:00 2001
From: Anatoly Burakov <anatoly.burakov at intel.com>
Date: Thu, 31 Jan 2019 17:05:51 +0000
Subject: [PATCH] doc: clarify libnuma requirement for NUMA systems

[ upstream commit e39d9b63664ae44af6214fa236cd989850a50833 ]

Since 18.05, libnuma is pretty much required on Linux when using
non-legacy mode, because without it, we cannot know where our
hugepages are located [1].

In legacy mode, libnuma is not required because we can still sort
pages by sockets, as we use pagemap lookup method to figure out
socket ID's for pages.

So, document libnuma as required for NUMA systems and non-legacy
mode.

[1] https://mails.dpdk.org/archives/dev/2018-December/120490.html

Fixes: 6b42f75632f0 ("eal: enable non-legacy memory mode")

Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
Acked-by: Kevin Traynor <ktraynor at redhat.com>
---
 doc/guides/linux_gsg/sys_reqs.rst | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
index 29c5f47a5..1c6f86a20 100644
--- a/doc/guides/linux_gsg/sys_reqs.rst
+++ b/doc/guides/linux_gsg/sys_reqs.rst
@@ -71,4 +71,13 @@ Compilation of the DPDK
     * libnuma-dev in Debian/Ubuntu;
 
+    .. note::
+
+        On systems with NUMA support, `libnuma-dev` (aka `numactl-devel`)
+        is a recommended dependency when `--legacy-mem` switch is used,
+        and a *required* dependency if default memory mode is used.
+        While DPDK will compile and run without `libnuma`
+        even on NUMA-enabled systems,
+        both usability and performance will be degraded.
+
 *   Python, version 2.7+ or 3.2+, to use various helper scripts included in the DPDK package.
 
-- 
2.19.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-02-07 13:19:57.211345859 +0000
+++ 0068-doc-clarify-libnuma-requirement-for-NUMA-systems.patch	2019-02-07 13:19:55.000000000 +0000
@@ -1,8 +1,10 @@
-From e39d9b63664ae44af6214fa236cd989850a50833 Mon Sep 17 00:00:00 2001
+From 39ce967019925bc923a7d0a41b09bfa4f0c106c6 Mon Sep 17 00:00:00 2001
 From: Anatoly Burakov <anatoly.burakov at intel.com>
 Date: Thu, 31 Jan 2019 17:05:51 +0000
 Subject: [PATCH] doc: clarify libnuma requirement for NUMA systems
 
+[ upstream commit e39d9b63664ae44af6214fa236cd989850a50833 ]
+
 Since 18.05, libnuma is pretty much required on Linux when using
 non-legacy mode, because without it, we cannot know where our
 hugepages are located [1].
@@ -17,7 +19,6 @@
 [1] https://mails.dpdk.org/archives/dev/2018-December/120490.html
 
 Fixes: 6b42f75632f0 ("eal: enable non-legacy memory mode")
-Cc: stable at dpdk.org
 
 Signed-off-by: Anatoly Burakov <anatoly.burakov at intel.com>
 Acked-by: Kevin Traynor <ktraynor at redhat.com>
@@ -26,7 +27,7 @@
  1 file changed, 9 insertions(+)
 
 diff --git a/doc/guides/linux_gsg/sys_reqs.rst b/doc/guides/linux_gsg/sys_reqs.rst
-index 8ec3af491..d0cb66f6b 100644
+index 29c5f47a5..1c6f86a20 100644
 --- a/doc/guides/linux_gsg/sys_reqs.rst
 +++ b/doc/guides/linux_gsg/sys_reqs.rst
 @@ -71,4 +71,13 @@ Compilation of the DPDK