patch 'baseband/acc: fix ACC100 HARQ input alignment' has been queued to stable release 21.11.6

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/08/23. 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/e166b7fd155b3fa656385f429dc0b8aa53135bea

Thanks.

Kevin

---
>From e166b7fd155b3fa656385f429dc0b8aa53135bea Mon Sep 17 00:00:00 2001
From: Hernan Vargas <hernan.vargas at intel.com>
Date: Tue, 19 Sep 2023 11:24:17 -0700
Subject: [PATCH] baseband/acc: fix ACC100 HARQ input alignment

[ upstream commit 7d048916644d7777872f957901222f2654b234dd ]

Some constraints are imposed onto the ACC100 HARQ input size,
but that value is incorrectly aligned down when getting close to
max (Ncb-F) which is not required.
The wireless performance impact is negligeable but still causes a
few LLRs no to be combined at the very end of the circular buffer.

Fixes: 5802f36dd492 ("baseband/acc100: enforce additional check on FCW")

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 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c
index 5ac2f96a84..d84a8839e0 100644
--- a/drivers/baseband/acc100/rte_acc100_pmd.c
+++ b/drivers/baseband/acc100/rte_acc100_pmd.c
@@ -1376,5 +1376,5 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc100_fcw_ld *fcw,
 
 		/* Alignment on next 64B - Already enforced from HC output */
-		harq_in_length = RTE_ALIGN_FLOOR(harq_in_length, ACC100_HARQ_ALIGN_64B);
+		harq_in_length = RTE_ALIGN_CEIL(harq_in_length, ACC100_HARQ_ALIGN_64B);
 
 		/* Stronger alignment requirement when in decompression mode */
-- 
2.41.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2023-11-02 13:09:42.070780222 +0000
+++ 0051-baseband-acc-fix-ACC100-HARQ-input-alignment.patch	2023-11-02 13:09:40.852163461 +0000
@@ -1 +1 @@
-From 7d048916644d7777872f957901222f2654b234dd Mon Sep 17 00:00:00 2001
+From e166b7fd155b3fa656385f429dc0b8aa53135bea Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 7d048916644d7777872f957901222f2654b234dd ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org
@@ -18 +19 @@
- drivers/baseband/acc/rte_acc100_pmd.c | 2 +-
+ drivers/baseband/acc100/rte_acc100_pmd.c | 2 +-
@@ -21,5 +22,5 @@
-diff --git a/drivers/baseband/acc/rte_acc100_pmd.c b/drivers/baseband/acc/rte_acc100_pmd.c
-index 5362d39c30..c736f3e420 100644
---- a/drivers/baseband/acc/rte_acc100_pmd.c
-+++ b/drivers/baseband/acc/rte_acc100_pmd.c
-@@ -1219,5 +1219,5 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc_fcw_ld *fcw,
+diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c
+index 5ac2f96a84..d84a8839e0 100644
+--- a/drivers/baseband/acc100/rte_acc100_pmd.c
++++ b/drivers/baseband/acc100/rte_acc100_pmd.c
+@@ -1376,5 +1376,5 @@ acc100_fcw_ld_fill(struct rte_bbdev_dec_op *op, struct acc100_fcw_ld *fcw,
@@ -28,2 +29,2 @@
--		harq_in_length = RTE_ALIGN_FLOOR(harq_in_length, ACC_HARQ_ALIGN_64B);
-+		harq_in_length = RTE_ALIGN_CEIL(harq_in_length, ACC_HARQ_ALIGN_64B);
+-		harq_in_length = RTE_ALIGN_FLOOR(harq_in_length, ACC100_HARQ_ALIGN_64B);
++		harq_in_length = RTE_ALIGN_CEIL(harq_in_length, ACC100_HARQ_ALIGN_64B);