patch 'net/ngbe: add CDR config for YT PHY' has been queued to stable release 24.11.7

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 24.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/05/26. 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/390e4e4feb9c9c8940fe5d6c341391df5c9be4d5

Thanks.

Luca Boccassi

---
>From 390e4e4feb9c9c8940fe5d6c341391df5c9be4d5 Mon Sep 17 00:00:00 2001
From: Zaiyu Wang <zaiyuwang at trustnetic.com>
Date: Wed, 24 Jun 2026 19:52:35 +0800
Subject: [PATCH] net/ngbe: add CDR config for YT PHY

[ upstream commit 1c8812a964eb14f647a810b5e42eb5ddb0072927 ]

According to the PHY vendor, when YT8531S operates in UTP-to-Fiber or
RGMII-to-Fiber mode with auto-negotiation disabled (Force mode),
additional CDR (Clock Data Recovery) configuration is required to
improve link connectivity. Without this config, link may be unstable
or fail to establish.

Fixes: f1268369403d ("net/ngbe: support autoneg on/off for external PHY SFI mode")

Signed-off-by: Zaiyu Wang <zaiyuwang at trustnetic.com>
---
 drivers/net/ngbe/base/ngbe_phy_yt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ngbe/base/ngbe_phy_yt.c b/drivers/net/ngbe/base/ngbe_phy_yt.c
index d110fbc8b2..ab0778d246 100644
--- a/drivers/net/ngbe/base/ngbe_phy_yt.c
+++ b/drivers/net/ngbe/base/ngbe_phy_yt.c
@@ -264,6 +264,9 @@ skip_an_fiber:
 			value = YT_BCR_RESET | YT_BCR_ANE | YT_BCR_RESTART_AN |
 				YT_BCR_DUPLEX | YT_BCR_SPEED_SELECT1;
 		} else {
+			/* force mode need to config cdr */
+			ngbe_write_phy_reg_sds_ext_yt(hw, 0x3, 0, 0x1434);
+			ngbe_write_phy_reg_sds_ext_yt(hw, 0xe, 0, 0x163);
 			value = YT_BCR_RESET | YT_BCR_DUPLEX;
 			if (speed & NGBE_LINK_SPEED_1GB_FULL)
 				value |= YT_BCR_SPEED_SELECT1;
-- 
2.47.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2026-07-03 12:55:48.879907878 +0100
+++ 0058-net-ngbe-add-CDR-config-for-YT-PHY.patch	2026-07-03 12:55:46.702574820 +0100
@@ -1 +1 @@
-From 1c8812a964eb14f647a810b5e42eb5ddb0072927 Mon Sep 17 00:00:00 2001
+From 390e4e4feb9c9c8940fe5d6c341391df5c9be4d5 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 1c8812a964eb14f647a810b5e42eb5ddb0072927 ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org