patch 'doc: fix dlb2 guide' has been queued to stable release 20.11.5

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/20/22. 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.

Queued patches are on a temporary branch at:
https://github.com/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/6bfaf85e5bcd99e4225fe1f721cec27c5c4120c3

Thanks.

Luca Boccassi

---
>From 6bfaf85e5bcd99e4225fe1f721cec27c5c4120c3 Mon Sep 17 00:00:00 2001
From: Rashmi Shetty <rashmi.shetty at intel.com>
Date: Tue, 7 Dec 2021 17:01:51 -0600
Subject: [PATCH] doc: fix dlb2 guide

[ upstream commit 7fe2d346af2f3cae0e94347861cdfa412af39fc2 ]

Number of direct credits, atomic inflight and history list are
updated to DLB2.0 supported sizes. As DLB2.0 does not provide
dev arg to override the default per-queue atomic inflight
allocation, it is removed from the documentation.

Fixes: f3cad285bb88 ("event/dlb2: add infos get and configure")

Signed-off-by: Rashmi Shetty <rashmi.shetty at intel.com>
Reviewed-by: Timothy McDaniel <timothy.mcdaniel at intel.com>
---
 doc/guides/eventdevs/dlb2.rst | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/doc/guides/eventdevs/dlb2.rst b/doc/guides/eventdevs/dlb2.rst
index 1223219cf7..834e2242a9 100644
--- a/doc/guides/eventdevs/dlb2.rst
+++ b/doc/guides/eventdevs/dlb2.rst
@@ -178,7 +178,7 @@ A DLB2 eventdev contains one load-balanced and one directed credit pool. These
 pools' sizes are controlled by the nb_events_limit field in struct
 rte_event_dev_config. The load-balanced pool is sized to contain
 nb_events_limit credits, and the directed pool is sized to contain
-nb_events_limit/4 credits. The directed pool size can be overridden with the
+nb_events_limit/2 credits. The directed pool size can be overridden with the
 num_dir_credits devargs argument, like so:
 
     .. code-block:: console
@@ -266,8 +266,8 @@ queue A.
 Due to this, workers should stop retrying after a time, release the events it
 is attempting to enqueue, and dequeue more events. It is important that the
 worker release the events and don't simply set them aside to retry the enqueue
-again later, because the port has limited history list size (by default, twice
-the port's dequeue_depth).
+again later, because the port has limited history list size (by default, same
+as port's dequeue_depth).
 
 Priority
 ~~~~~~~~
@@ -330,18 +330,11 @@ scheduled. The likelihood of this case depends on the eventdev configuration,
 traffic behavior, event processing latency, potential for a worker to be
 interrupted or otherwise delayed, etc.
 
-By default, the PMD allocates 16 buffer entries for each load-balanced queue,
-which provides an even division across all 128 queues but potentially wastes
+By default, the PMD allocates 64 buffer entries for each load-balanced queue,
+which provides an even division across all 32 queues but potentially wastes
 buffer space (e.g. if not all queues are used, or aren't used for atomic
 scheduling).
 
-The PMD provides a dev arg to override the default per-queue allocation. To
-increase per-queue atomic-inflight allocation to (for example) 64:
-
-    .. code-block:: console
-
-       --allow ea:00.0,atm_inflights=64
-
 QID Depth Threshold
 ~~~~~~~~~~~~~~~~~~~
 
@@ -358,7 +351,7 @@ Per queue threshold metrics are tracked in the DLB2 xstats, and are also
 returned in the impl_opaque field of each received event.
 
 The per qid threshold can be specified as part of the device args, and
-can be applied to all queue, a range of queues, or a single queue, as
+can be applied to all queues, a range of queues, or a single queue, as
 shown below.
 
     .. code-block:: console
-- 
2.30.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-02-18 12:37:38.521402437 +0000
+++ 0008-doc-fix-dlb2-guide.patch	2022-02-18 12:37:37.502787721 +0000
@@ -1 +1 @@
-From 7fe2d346af2f3cae0e94347861cdfa412af39fc2 Mon Sep 17 00:00:00 2001
+From 6bfaf85e5bcd99e4225fe1f721cec27c5c4120c3 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 7fe2d346af2f3cae0e94347861cdfa412af39fc2 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -21 +22 @@
-index bce984ca08..bc53618b53 100644
+index 1223219cf7..834e2242a9 100644
@@ -24,2 +25,2 @@
-@@ -151,7 +151,7 @@ load-balanced queues, and directed credits are used for directed queues.
- These pools' sizes are controlled by the nb_events_limit field in struct
+@@ -178,7 +178,7 @@ A DLB2 eventdev contains one load-balanced and one directed credit pool. These
+ pools' sizes are controlled by the nb_events_limit field in struct
@@ -33 +34 @@
-@@ -239,8 +239,8 @@ queue A.
+@@ -266,8 +266,8 @@ queue A.
@@ -44 +45 @@
-@@ -309,18 +309,11 @@ scheduled. The likelihood of this case depends on the eventdev configuration,
+@@ -330,18 +330,11 @@ scheduled. The likelihood of this case depends on the eventdev configuration,
@@ -65 +66 @@
-@@ -337,7 +330,7 @@ Per queue threshold metrics are tracked in the DLB xstats, and are also
+@@ -358,7 +351,7 @@ Per queue threshold metrics are tracked in the DLB2 xstats, and are also