patch 'net/netvsc: fix VLAN metadata parsing' has been queued to stable release 23.11.1

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 23.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 03/31/24. 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=c3ccbda492b50510574f90c9a08f26871bc55912

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From c3ccbda492b50510574f90c9a08f26871bc55912 Mon Sep 17 00:00:00 2001
From: Alan Elder <alan.elder at microsoft.com>
Date: Mon, 19 Feb 2024 09:31:39 +0000
Subject: [PATCH] net/netvsc: fix VLAN metadata parsing
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit f7654c8c13f46ab537e8220ea4d6b4911f9f0fd5 ]

The previous code incorrectly parsed the VLAN ID and priority.
If the 16-bits of VLAN ID and priority/CFI on the wire was
0123456789ABCDEF the code parsed it as 456789ABCDEF3012.  There
were macros defined to handle this conversion but they were not
used.

Fixes: 4e9c73e96e83 ("net/netvsc: add Hyper-V network device")

Signed-off-by: Alan Elder <alan.elder at microsoft.com>
Acked-by: Ferruh Yigit <ferruh.yigit at amd.com>
---
 drivers/net/netvsc/hn_rxtx.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/netvsc/hn_rxtx.c b/drivers/net/netvsc/hn_rxtx.c
index e4f5015aa3..9bf1ec5509 100644
--- a/drivers/net/netvsc/hn_rxtx.c
+++ b/drivers/net/netvsc/hn_rxtx.c
@@ -612,7 +612,9 @@ static void hn_rxpkt(struct hn_rx_queue *rxq, struct hn_rx_bufinfo *rxb,
 					   RTE_PTYPE_L4_MASK);

 	if (info->vlan_info != HN_NDIS_VLAN_INFO_INVALID) {
-		m->vlan_tci = info->vlan_info;
+		m->vlan_tci = RTE_VLAN_TCI_MAKE(NDIS_VLAN_INFO_ID(info->vlan_info),
+						NDIS_VLAN_INFO_PRI(info->vlan_info),
+						NDIS_VLAN_INFO_CFI(info->vlan_info));
 		m->ol_flags |= RTE_MBUF_F_RX_VLAN_STRIPPED | RTE_MBUF_F_RX_VLAN;

 		/* NDIS always strips tag, put it back if necessary */
@@ -1332,7 +1334,9 @@ static void hn_encap(struct rndis_packet_msg *pkt,
 	if (m->ol_flags & RTE_MBUF_F_TX_VLAN) {
 		pi_data = hn_rndis_pktinfo_append(pkt, NDIS_VLAN_INFO_SIZE,
 						  NDIS_PKTINFO_TYPE_VLAN);
-		*pi_data = m->vlan_tci;
+		*pi_data = NDIS_VLAN_INFO_MAKE(RTE_VLAN_TCI_ID(m->vlan_tci),
+					       RTE_VLAN_TCI_PRI(m->vlan_tci),
+					       RTE_VLAN_TCI_DEI(m->vlan_tci));
 	}

 	if (m->ol_flags & RTE_MBUF_F_TX_TCP_SEG) {
--
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2024-03-05 17:39:34.332632311 +0800
+++ 0112-net-netvsc-fix-VLAN-metadata-parsing.patch	2024-03-05 17:39:30.903566497 +0800
@@ -1 +1 @@
-From f7654c8c13f46ab537e8220ea4d6b4911f9f0fd5 Mon Sep 17 00:00:00 2001
+From c3ccbda492b50510574f90c9a08f26871bc55912 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit f7654c8c13f46ab537e8220ea4d6b4911f9f0fd5 ]
@@ -13 +15,0 @@
-Cc: stable at dpdk.org