patch 'net/axgbe: fix fluctuations for 1G Bel Fuse SFP' has been queued to stable release 21.11.8

[Kevin Traynor <ktraynor@redhat.com>]

Hi,

FYI, your patch has been queued to stable release 21.11.8

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/28/24. 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/8d53ecbbf62d7a7496283a7572d5f3de1bcfe36d

Thanks.

Kevin

---
From 8d53ecbbf62d7a7496283a7572d5f3de1bcfe36d Mon Sep 17 00:00:00 2001
From: Venkat Kumar Ande <venkatkumar.ande@amd.com>
Date: Tue, 4 Jun 2024 17:41:35 +0530
Subject: [PATCH] net/axgbe: fix fluctuations for 1G Bel Fuse SFP

[ upstream commit 3abfda0f7d58b2eef20cdf8e102825678b150421 ]

Frequent link up/down events can happen when a Bel Fuse SFP part is
connected to the amd-xgbe device. Try to avoid the frequent link
issues by resetting the PHY as documented in Bel Fuse SFP datasheet.

Without the fix user will see continuous port link up and down.

Fixes: a5c7273771e8 ("net/axgbe: add phy programming APIs")

Signed-off-by: Venkat Kumar Ande <venkatkumar.ande@amd.com>
Acked-by: Selwin Sebastian <selwin.sebastian@amd.com>
---
 drivers/net/axgbe/axgbe_phy_impl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c
index df334749e9..a458722e2e 100644
--- a/drivers/net/axgbe/axgbe_phy_impl.c
+++ b/drivers/net/axgbe/axgbe_phy_impl.c
@@ -578,4 +578,7 @@ static bool axgbe_phy_belfuse_parse_quirks(struct axgbe_port *pdata)
 		return false;
 
+	/* Reset PHY - wait for self-clearing reset bit to clear */
+	pdata->phy_if.phy_impl.reset(pdata);
+
 	if (!memcmp(&sfp_eeprom->base[AXGBE_SFP_BASE_VENDOR_PN],
 		    AXGBE_BEL_FUSE_PARTNO, strlen(AXGBE_BEL_FUSE_PARTNO))) {
-- 
2.46.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2024-08-23 17:18:10.574028543 +0100
+++ 0019-net-axgbe-fix-fluctuations-for-1G-Bel-Fuse-SFP.patch	2024-08-23 17:18:09.640429826 +0100
@@ -1 +1 @@
-From 3abfda0f7d58b2eef20cdf8e102825678b150421 Mon Sep 17 00:00:00 2001
+From 8d53ecbbf62d7a7496283a7572d5f3de1bcfe36d Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 3abfda0f7d58b2eef20cdf8e102825678b150421 ]
+
@@ -13 +14,0 @@
-Cc: stable@dpdk.org
@@ -22 +23 @@
-index 54fe9faae0..ee9dcbe3da 100644
+index df334749e9..a458722e2e 100644
@@ -25 +26 @@
-@@ -579,4 +579,7 @@ static bool axgbe_phy_belfuse_parse_quirks(struct axgbe_port *pdata)
+@@ -578,4 +578,7 @@ static bool axgbe_phy_belfuse_parse_quirks(struct axgbe_port *pdata)