[dpdk-stable] patch 'net/bnxt: fix Tx timestamp init' has been queued to stable release 19.11.9

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 19.11.9

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/19/21. 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/cpaelzer/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/cpaelzer/dpdk-stable-queue/commit/5a6893bd46133061c99f2b8d177a96615b0368b6

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From 5a6893bd46133061c99f2b8d177a96615b0368b6 Mon Sep 17 00:00:00 2001
From: Somnath Kotur <somnath.kotur at broadcom.com>
Date: Tue, 16 Mar 2021 11:10:48 +0530
Subject: [PATCH] net/bnxt: fix Tx timestamp init

[ upstream commit aa764bae8d66856caad976c5e7d4b415c3158179 ]

Fix to read the sequence ID register to get Tx timestamp.
Reading the sequence ID register is necessary for the HW FIFO to
advance and thereby get the correct value of the timestamp on Tx side.
This patch fixes that.

Fixes: b11cceb83a34 ("net/bnxt: support timesync")

Reviewed-by: Kalesh AP <kalesh-anakkur.purayil at broadcom.com>
Reviewed-by: Lance Richardson <lance.richardson at broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
Signed-off-by: Somnath Kotur <somnath.kotur at broadcom.com>
---
 drivers/net/bnxt/bnxt_ethdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/bnxt/bnxt_ethdev.c b/drivers/net/bnxt/bnxt_ethdev.c
index eb2c840943..fed52bafd5 100644
--- a/drivers/net/bnxt/bnxt_ethdev.c
+++ b/drivers/net/bnxt/bnxt_ethdev.c
@@ -3455,6 +3455,7 @@ static int bnxt_get_tx_ts(struct bnxt *bp, uint64_t *ts)
 				ptp->tx_mapped_regs[BNXT_PTP_TX_TS_L]));
 	*ts |= (uint64_t)rte_le_to_cpu_32(rte_read32((uint8_t *)bp->bar0 +
 				ptp->tx_mapped_regs[BNXT_PTP_TX_TS_H])) << 32;
+	rte_read32((uint8_t *)bp->bar0 + ptp->tx_mapped_regs[BNXT_PTP_TX_SEQ]);
 
 	return 0;
 }
-- 
2.31.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-05-17 17:40:31.597924933 +0200
+++ 0052-net-bnxt-fix-Tx-timestamp-init.patch	2021-05-17 17:40:29.187809602 +0200
@@ -1 +1 @@
-From aa764bae8d66856caad976c5e7d4b415c3158179 Mon Sep 17 00:00:00 2001
+From 5a6893bd46133061c99f2b8d177a96615b0368b6 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit aa764bae8d66856caad976c5e7d4b415c3158179 ]
+
@@ -12 +13,0 @@
-Cc: stable at dpdk.org
@@ -23 +24 @@
-index f1dd40591f..57a409c0b7 100644
+index eb2c840943..fed52bafd5 100644
@@ -26 +27 @@
-@@ -3377,6 +3377,7 @@ static int bnxt_get_tx_ts(struct bnxt *bp, uint64_t *ts)
+@@ -3455,6 +3455,7 @@ static int bnxt_get_tx_ts(struct bnxt *bp, uint64_t *ts)