patch 'net/hns3: fix RTC time on initialization' has been queued to stable release 22.11.3

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 22.11.3

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/27/23. 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=22.11-staging

This queued commit can be viewed at:
https://git.dpdk.org/dpdk-stable/commit/?h=22.11-staging&id=69bff6ea1c35e00eb10145a41269ce7234ce8558

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From 69bff6ea1c35e00eb10145a41269ce7234ce8558 Mon Sep 17 00:00:00 2001
From: Huisong Li <lihuisong at huawei.com>
Date: Fri, 2 Jun 2023 19:41:55 +0800
Subject: [PATCH] net/hns3: fix RTC time on initialization
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit f901c570e50d042f466de29b186db68e177f93ab ]

Driver doesn't initialize RTC time during probe phase, which
lead to an inaccurate time.

Fixes: 38b539d96eb6 ("net/hns3: support IEEE 1588 PTP")

Signed-off-by: Huisong Li <lihuisong at huawei.com>
Signed-off-by: Dongdong Liu <liudongdong3 at huawei.com>
---
 drivers/net/hns3/hns3_ptp.c | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

diff --git a/drivers/net/hns3/hns3_ptp.c b/drivers/net/hns3/hns3_ptp.c
index db3c007b12..1e27e4aeca 100644
--- a/drivers/net/hns3/hns3_ptp.c
+++ b/drivers/net/hns3/hns3_ptp.c
@@ -56,9 +56,23 @@ hns3_ptp_int_en(struct hns3_hw *hw, bool en)
 	return ret;
 }
 
+static void
+hns3_ptp_timesync_write_time(struct hns3_hw *hw, const struct timespec *ts)
+{
+	uint64_t sec = ts->tv_sec;
+	uint64_t ns = ts->tv_nsec;
+
+	/* Set the timecounters to a new value. */
+	hns3_write_dev(hw, HNS3_CFG_TIME_SYNC_H, upper_32_bits(sec));
+	hns3_write_dev(hw, HNS3_CFG_TIME_SYNC_M, lower_32_bits(sec));
+	hns3_write_dev(hw, HNS3_CFG_TIME_SYNC_L, lower_32_bits(ns));
+	hns3_write_dev(hw, HNS3_CFG_TIME_SYNC_RDY, 1);
+}
+
 int
 hns3_ptp_init(struct hns3_hw *hw)
 {
+	struct timespec sys_time;
 	int ret;
 
 	if (!hns3_dev_get_support(hw, PTP))
@@ -71,6 +85,10 @@ hns3_ptp_init(struct hns3_hw *hw)
 	/* Start PTP timer */
 	hns3_write_dev(hw, HNS3_CFG_TIME_CYC_EN, 1);
 
+	/* Initializing the RTC. */
+	clock_gettime(CLOCK_REALTIME, &sys_time);
+	hns3_ptp_timesync_write_time(hw, &sys_time);
+
 	return 0;
 }
 
@@ -241,17 +259,11 @@ int
 hns3_timesync_write_time(struct rte_eth_dev *dev, const struct timespec *ts)
 {
 	struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
-	uint64_t sec = ts->tv_sec;
-	uint64_t ns = ts->tv_nsec;
 
 	if (!hns3_dev_get_support(hw, PTP))
 		return -ENOTSUP;
 
-	/* Set the timecounters to a new value. */
-	hns3_write_dev(hw, HNS3_CFG_TIME_SYNC_H, upper_32_bits(sec));
-	hns3_write_dev(hw, HNS3_CFG_TIME_SYNC_M, lower_32_bits(sec));
-	hns3_write_dev(hw, HNS3_CFG_TIME_SYNC_L, lower_32_bits(ns));
-	hns3_write_dev(hw, HNS3_CFG_TIME_SYNC_RDY, 1);
+	hns3_ptp_timesync_write_time(hw, ts);
 
 	return 0;
 }
-- 
2.25.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2023-06-25 14:31:59.797256300 +0800
+++ 0048-net-hns3-fix-RTC-time-on-initialization.patch	2023-06-25 14:31:58.365773900 +0800
@@ -1 +1 @@
-From f901c570e50d042f466de29b186db68e177f93ab Mon Sep 17 00:00:00 2001
+From 69bff6ea1c35e00eb10145a41269ce7234ce8558 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit f901c570e50d042f466de29b186db68e177f93ab ]
@@ -10 +12,0 @@
-Cc: stable at dpdk.org