patch 'net/txgbe: fix VF Rx buffer size in config register' has been queued to stable release 23.11.6

[Shani Peretz]

Hi,

FYI, your patch has been queued to stable release 23.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/30/25. 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/shanipr/dpdk-stable

This queued commit can be viewed at:
https://github.com/shanipr/dpdk-stable/commit/d4632a230e917fdfb4b555763aa3f929076931ce

Thanks.

Shani

---
>From d4632a230e917fdfb4b555763aa3f929076931ce Mon Sep 17 00:00:00 2001
From: Jiawen Wu <jiawenwu at trustnetic.com>
Date: Mon, 27 Oct 2025 11:15:28 +0800
Subject: [PATCH] net/txgbe: fix VF Rx buffer size in config register

[ upstream commit ee2bc2d16c6d1c59d8f5eae16a874866e3a60de7 ]

Refer to commit 8a3ef4b89e6d ("net/txgbe: fix Rx buffer size in
config register").

When round up buffer size to 1K, to configure the register, hardware
will receive packets exceeding the buffer size in LRO mode. It will
cause a segment fault in the receive function.

Fixes: 92144bb36c6f ("net/txgbe: support VF Rx/Tx")

Signed-off-by: Jiawen Wu <jiawenwu at trustnetic.com>
---
 drivers/net/txgbe/txgbe_rxtx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/txgbe/txgbe_rxtx.c b/drivers/net/txgbe/txgbe_rxtx.c
index 89865ec606..11df2eeafa 100644
--- a/drivers/net/txgbe/txgbe_rxtx.c
+++ b/drivers/net/txgbe/txgbe_rxtx.c
@@ -4910,7 +4910,7 @@ txgbevf_dev_rx_init(struct rte_eth_dev *dev)
 		 */
 		buf_size = (uint16_t)(rte_pktmbuf_data_room_size(rxq->mb_pool) -
 			RTE_PKTMBUF_HEADROOM);
-		buf_size = ROUND_UP(buf_size, 1 << 10);
+		buf_size = ROUND_DOWN(buf_size, 1 << 10);
 		srrctl |= TXGBE_RXCFG_PKTLEN(buf_size);
 
 		/*
-- 
2.43.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-12-25 11:16:38.059444721 +0200
+++ 0035-net-txgbe-fix-VF-Rx-buffer-size-in-config-register.patch	2025-12-25 11:16:35.565812000 +0200
@@ -1 +1 @@
-From ee2bc2d16c6d1c59d8f5eae16a874866e3a60de7 Mon Sep 17 00:00:00 2001
+From d4632a230e917fdfb4b555763aa3f929076931ce Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit ee2bc2d16c6d1c59d8f5eae16a874866e3a60de7 ]
+
@@ -14 +15,0 @@
-Cc: stable at dpdk.org
@@ -22 +23 @@
-index d77db1efa2..a3472bcf34 100644
+index 89865ec606..11df2eeafa 100644
@@ -25 +26 @@
-@@ -5256,7 +5256,7 @@ txgbevf_dev_rx_init(struct rte_eth_dev *dev)
+@@ -4910,7 +4910,7 @@ txgbevf_dev_rx_init(struct rte_eth_dev *dev)