patch 'net/enetfec: fix buffer descriptor size configuration' has been queued to stable release 22.11.11

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 22.11.11

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 10/29/25. 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/88b56e48b6d7424a0792ed714489390bc8d848de

Thanks.

Luca Boccassi

---
>From 88b56e48b6d7424a0792ed714489390bc8d848de Mon Sep 17 00:00:00 2001
From: Hemant Agrawal <hemant.agrawal at nxp.com>
Date: Mon, 6 Oct 2025 13:34:02 +0530
Subject: [PATCH] net/enetfec: fix buffer descriptor size configuration

[ upstream commit f034c096b86ed79345cc1f83c6191713b2814fb0 ]

The driver previously allowed arbitrary descriptor counts, which could
lead to misaligned buffer allocations. This patch enforces the use of
fixed descriptor ring sizes for both RX and TX queues, ensuring proper
buffer allocation and avoiding potential runtime issues.

Fixes: bb5b5bf1e5c6 ("net/enetfec: support queue configuration")

Signed-off-by: Hemant Agrawal <hemant.agrawal at nxp.com>
Acked-by: Sachin Saxena <sachin.saxena at nxp.com>
---
 drivers/net/enetfec/enet_ethdev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/enetfec/enet_ethdev.c b/drivers/net/enetfec/enet_ethdev.c
index d7a1121ff4..27f338a9af 100644
--- a/drivers/net/enetfec/enet_ethdev.c
+++ b/drivers/net/enetfec/enet_ethdev.c
@@ -389,7 +389,7 @@ enetfec_tx_queue_setup(struct rte_eth_dev *dev,
 		return -ENOMEM;
 	}
 
-	if (nb_desc > MAX_TX_BD_RING_SIZE) {
+	if (nb_desc != MAX_TX_BD_RING_SIZE) {
 		nb_desc = MAX_TX_BD_RING_SIZE;
 		ENETFEC_PMD_WARN("modified the nb_desc to MAX_TX_BD_RING_SIZE");
 	}
@@ -473,7 +473,7 @@ enetfec_rx_queue_setup(struct rte_eth_dev *dev,
 		return -ENOMEM;
 	}
 
-	if (nb_rx_desc > MAX_RX_BD_RING_SIZE) {
+	if (nb_rx_desc != MAX_RX_BD_RING_SIZE) {
 		nb_rx_desc = MAX_RX_BD_RING_SIZE;
 		ENETFEC_PMD_WARN("modified the nb_desc to MAX_RX_BD_RING_SIZE");
 	}
-- 
2.47.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-10-27 15:54:37.031667123 +0000
+++ 0061-net-enetfec-fix-buffer-descriptor-size-configuration.patch	2025-10-27 15:54:34.839950653 +0000
@@ -1 +1 @@
-From f034c096b86ed79345cc1f83c6191713b2814fb0 Mon Sep 17 00:00:00 2001
+From 88b56e48b6d7424a0792ed714489390bc8d848de Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit f034c096b86ed79345cc1f83c6191713b2814fb0 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -21 +22 @@
-index 7c2926409e..f7a45fcd4d 100644
+index d7a1121ff4..27f338a9af 100644
@@ -24 +25 @@
-@@ -384,7 +384,7 @@ enetfec_tx_queue_setup(struct rte_eth_dev *dev,
+@@ -389,7 +389,7 @@ enetfec_tx_queue_setup(struct rte_eth_dev *dev,
@@ -33 +34 @@
-@@ -462,7 +462,7 @@ enetfec_rx_queue_setup(struct rte_eth_dev *dev,
+@@ -473,7 +473,7 @@ enetfec_rx_queue_setup(struct rte_eth_dev *dev,