patch 'baseband/acc100: fix clearing PF IR outside handler' has been queued to stable release 20.11.7

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/07/22. 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/kevintraynor/dpdk-stable

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/cbcb14c99c4a4774ccd98bcd2c1072ddc99b15dd

Thanks.

Luca Boccassi

---
>From cbcb14c99c4a4774ccd98bcd2c1072ddc99b15dd Mon Sep 17 00:00:00 2001
From: Hernan Vargas <hernan.vargas at intel.com>
Date: Thu, 20 Oct 2022 22:20:43 -0700
Subject: [PATCH] baseband/acc100: fix clearing PF IR outside handler

[ upstream commit 935745f56b9bf37ebece351170b47d3e6c215bc9 ]

Clearing of PF info ring outside of handler may cause interrupt to be
missed.
A condition in the ACC100 PMD implementation may cause an interrupt
functional handler call to be missed due to related bit being cleared
when checking PF info ring status.

Fixes: 06531464151 ("baseband/acc100: support interrupt")

Signed-off-by: Hernan Vargas <hernan.vargas at intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
 drivers/baseband/acc100/rte_acc100_pmd.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c
index a5bfb417de..c0c75bdc25 100644
--- a/drivers/baseband/acc100/rte_acc100_pmd.c
+++ b/drivers/baseband/acc100/rte_acc100_pmd.c
@@ -423,11 +423,12 @@ acc100_check_ir(struct acc100_device *acc100_dev)
 	while (ring_data->valid) {
 		if ((ring_data->int_nb < ACC100_PF_INT_DMA_DL_DESC_IRQ) || (
 				ring_data->int_nb >
-				ACC100_PF_INT_DMA_DL5G_DESC_IRQ))
+				ACC100_PF_INT_DMA_DL5G_DESC_IRQ)) {
 			rte_bbdev_log(WARNING, "InfoRing: ITR:%d Info:0x%x",
 				ring_data->int_nb, ring_data->detailed_info);
-		/* Initialize Info Ring entry and move forward */
-		ring_data->val = 0;
+			/* Initialize Info Ring entry and move forward */
+			ring_data->val = 0;
+		}
 		info_ring_head++;
 		ring_data = acc100_dev->info_ring +
 				(info_ring_head & ACC100_INFO_RING_MASK);
-- 
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-11-05 17:11:12.397892286 +0000
+++ 0042-baseband-acc100-fix-clearing-PF-IR-outside-handler.patch	2022-11-05 17:11:08.830945991 +0000
@@ -1 +1 @@
-From 935745f56b9bf37ebece351170b47d3e6c215bc9 Mon Sep 17 00:00:00 2001
+From cbcb14c99c4a4774ccd98bcd2c1072ddc99b15dd Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 935745f56b9bf37ebece351170b47d3e6c215bc9 ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org
@@ -18 +19 @@
- drivers/baseband/acc/rte_acc100_pmd.c | 7 ++++---
+ drivers/baseband/acc100/rte_acc100_pmd.c | 7 ++++---
@@ -21,5 +22,5 @@
-diff --git a/drivers/baseband/acc/rte_acc100_pmd.c b/drivers/baseband/acc/rte_acc100_pmd.c
-index 7ec63dc470..3bb93a1e07 100644
---- a/drivers/baseband/acc/rte_acc100_pmd.c
-+++ b/drivers/baseband/acc/rte_acc100_pmd.c
-@@ -262,11 +262,12 @@ acc100_check_ir(struct acc_device *acc100_dev)
+diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c
+index a5bfb417de..c0c75bdc25 100644
+--- a/drivers/baseband/acc100/rte_acc100_pmd.c
++++ b/drivers/baseband/acc100/rte_acc100_pmd.c
+@@ -423,11 +423,12 @@ acc100_check_ir(struct acc100_device *acc100_dev)
@@ -40 +41 @@
- 				(info_ring_head & ACC_INFO_RING_MASK);
+ 				(info_ring_head & ACC100_INFO_RING_MASK);