[dpdk-stable] patch 'net/mlx5: fix tunnel rules validation on VF representor' has been queued to stable release 20.11.1

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 20.11.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/07/21. 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/bluca/dpdk-stable

This queued commit can be viewed at:
https://github.com/bluca/dpdk-stable/commit/09a68cd6a088cac78547fc7778cbe77d46dc3816

Thanks.

Luca Boccassi

---
>From 09a68cd6a088cac78547fc7778cbe77d46dc3816 Mon Sep 17 00:00:00 2001
From: Gregory Etelson <getelson at nvidia.com>
Date: Fri, 11 Dec 2020 16:46:14 +0200
Subject: [PATCH] net/mlx5: fix tunnel rules validation on VF representor

[ upstream commit 187f942b2de0856e62ae10a8b79469f8c4c487fa ]

MLX5 PMD implicitly adds vxlan_decap flow action to tunnel offload
match type rules. However, VXLAN decap action on VF representors is
not supported on MLX5 PMD hardware.

The patch rejects attempt to create tunnel offload flow rules on VF
representor.

Refer commit 9c4971e5231d ("net/mlx5: update VLAN and encap actions validation")

Fixes: 4ec6360de37d ("net/mlx5: implement tunnel offload")

Signed-off-by: Gregory Etelson <getelson at nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo at nvidia.com>
---
 drivers/net/mlx5/mlx5_flow_dv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index f61943f193..7225c8074d 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -5282,6 +5282,11 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
 	} else {
 		tunnel = NULL;
 	}
+	if (tunnel && priv->representor)
+		return rte_flow_error_set(error, ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+					  "decap not supported "
+					  "for VF representor");
 	grp_info.std_tbl_fix = tunnel_use_standard_attr_group_translate
 				(dev, tunnel, attr, items, actions);
 	ret = flow_dv_validate_attributes(dev, tunnel, attr, &grp_info, error);
-- 
2.29.2

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-02-05 11:18:32.618268919 +0000
+++ 0075-net-mlx5-fix-tunnel-rules-validation-on-VF-represent.patch	2021-02-05 11:18:28.858692102 +0000
@@ -1 +1 @@
-From 187f942b2de0856e62ae10a8b79469f8c4c487fa Mon Sep 17 00:00:00 2001
+From 09a68cd6a088cac78547fc7778cbe77d46dc3816 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 187f942b2de0856e62ae10a8b79469f8c4c487fa ]
+
@@ -16 +17,0 @@
-Cc: stable at dpdk.org
@@ -25 +26 @@
-index 7c2b389c63..4f638e24ad 100644
+index f61943f193..7225c8074d 100644
@@ -28 +29 @@
-@@ -5280,6 +5280,11 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
+@@ -5282,6 +5282,11 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,