patch 'net/ngbe: fix driver load bit to inform firmware' has been queued to stable release 23.11.3

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 23.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/10/24. 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://git.dpdk.org/dpdk-stable/log/?h=23.11-staging

This queued commit can be viewed at:
https://git.dpdk.org/dpdk-stable/commit/?h=23.11-staging&id=e27b87fc9ce58d6f3ad1c19c90b447ca8feeed2a

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From e27b87fc9ce58d6f3ad1c19c90b447ca8feeed2a Mon Sep 17 00:00:00 2001
From: Jiawen Wu <jiawenwu at trustnetic.com>
Date: Mon, 4 Nov 2024 10:30:04 +0800
Subject: [PATCH] net/ngbe: fix driver load bit to inform firmware
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit cb7be5b510ef0995fa171832f0e0994f667e2161 ]

Drv_load bit will be reset to default 0 after hardware LAN reset,
reconfigure it to inform firmware that driver is loaded. And set it to 0
when device is closed.

Fixes: 3518df5774c7 ("net/ngbe: support device start/stop")
Fixes: cc63194e89cb ("net/ngbe: support close and reset device")

Signed-off-by: Jiawen Wu <jiawenwu at trustnetic.com>
---
 drivers/net/ngbe/ngbe_ethdev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ngbe/ngbe_ethdev.c b/drivers/net/ngbe/ngbe_ethdev.c
index 4321924cb9..48b58284a6 100644
--- a/drivers/net/ngbe/ngbe_ethdev.c
+++ b/drivers/net/ngbe/ngbe_ethdev.c
@@ -263,6 +263,8 @@ ngbe_pf_reset_hw(struct ngbe_hw *hw)
 	status = hw->mac.reset_hw(hw);

 	ctrl_ext = rd32(hw, NGBE_PORTCTL);
+	/* let hardware know driver is loaded */
+	ctrl_ext |= NGBE_PORTCTL_DRVLOAD;
 	/* Set PF Reset Done bit so PF/VF Mail Ops can work */
 	ctrl_ext |= NGBE_PORTCTL_RSTDONE;
 	wr32(hw, NGBE_PORTCTL, ctrl_ext);
@@ -1269,6 +1271,9 @@ ngbe_dev_close(struct rte_eth_dev *dev)

 	ngbe_dev_stop(dev);

+	/* Let firmware take over control of hardware */
+	wr32m(hw, NGBE_PORTCTL, NGBE_PORTCTL_DRVLOAD, 0);
+
 	ngbe_dev_free_queues(dev);

 	ngbe_set_pcie_master(hw, false);
--
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2024-12-06 23:26:45.281260313 +0800
+++ 0035-net-ngbe-fix-driver-load-bit-to-inform-firmware.patch	2024-12-06 23:26:43.923044828 +0800
@@ -1 +1 @@
-From cb7be5b510ef0995fa171832f0e0994f667e2161 Mon Sep 17 00:00:00 2001
+From e27b87fc9ce58d6f3ad1c19c90b447ca8feeed2a Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit cb7be5b510ef0995fa171832f0e0994f667e2161 ]
@@ -12 +14,0 @@
-Cc: stable at dpdk.org
@@ -20 +22 @@
-index 353d17acc8..238533f2b8 100644
+index 4321924cb9..48b58284a6 100644
@@ -32 +34 @@
-@@ -1277,6 +1279,9 @@ ngbe_dev_close(struct rte_eth_dev *dev)
+@@ -1269,6 +1271,9 @@ ngbe_dev_close(struct rte_eth_dev *dev)