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From: Gregory Etelson <getelson@nvidia.com>
To: <dev@dpdk.org>
Cc: <getelson@nvidia.com>, <matan@nvidia.com>, <rasland@nvidia.com>,
	<stable@dpdk.org>, Viacheslav Ovsiienko <viacheslavo@nvidia.com>,
	Dekel Peled <dekelp@nvidia.com>, Ori Kam <orika@nvidia.com>
Subject: [PATCH] net/mlx5: fix IPv6 flow item validation for VERB API
Date: Mon, 7 Mar 2022 19:17:31 +0200	[thread overview]
Message-ID: <20220307171731.3643-1-getelson@nvidia.com> (raw)

In case the PMD was activated over VERB API,
limit IPv6 flow item next protocol mask value to 0 or 0xFF.
The limitation is required for RSS flow action TCP and UDP types.

Cc: stable@dpdk.org

Fixes: 491757372f98 ("net/mlx5: enforce limitation on IPv6 next protocol")
Signed-off-by: Gregory Etelson <getelson@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c
index 312649b732..97f05d7d30 100644
--- a/drivers/net/mlx5/mlx5_flow.c
+++ b/drivers/net/mlx5/mlx5_flow.c
@@ -2562,8 +2562,6 @@ mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
 					  RTE_FLOW_ERROR_TYPE_ITEM, item,
 					  "IPv6 cannot follow L2/VLAN layer "
 					  "which ether type is not IPv6");
-	if (mask && mask->hdr.proto == UINT8_MAX && spec)
-		next_proto = spec->hdr.proto;
 	if (item_flags & MLX5_FLOW_LAYER_TUNNEL) {
 		if (next_proto == IPPROTO_IPIP || next_proto == IPPROTO_IPV6)
 			return rte_flow_error_set(error, EINVAL,
@@ -2572,16 +2570,6 @@ mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
 						  "multiple tunnel "
 						  "not supported");
 	}
-	if (next_proto == IPPROTO_HOPOPTS  ||
-	    next_proto == IPPROTO_ROUTING  ||
-	    next_proto == IPPROTO_FRAGMENT ||
-	    next_proto == IPPROTO_ESP	   ||
-	    next_proto == IPPROTO_AH	   ||
-	    next_proto == IPPROTO_DSTOPTS)
-		return rte_flow_error_set(error, EINVAL,
-					  RTE_FLOW_ERROR_TYPE_ITEM, item,
-					  "IPv6 proto (next header) should "
-					  "not be set as extension header");
 	if (item_flags & MLX5_FLOW_LAYER_IPIP)
 		return rte_flow_error_set(error, EINVAL,
 					  RTE_FLOW_ERROR_TYPE_ITEM, item,
@@ -2609,6 +2597,21 @@ mlx5_flow_validate_item_ipv6(const struct rte_flow_item *item,
 					MLX5_ITEM_RANGE_NOT_ACCEPTED, error);
 	if (ret < 0)
 		return ret;
+	if (mask->hdr.proto != 0 && mask->hdr.proto != 0xff)
+		return rte_flow_error_set(error, EINVAL,
+					  RTE_FLOW_ERROR_TYPE_ITEM_MASK, mask,
+					  "partial mask is not supported for protocol");
+	next_proto = spec->hdr.proto & mask->hdr.proto;
+	if (next_proto == IPPROTO_HOPOPTS  ||
+	    next_proto == IPPROTO_ROUTING  ||
+	    next_proto == IPPROTO_FRAGMENT ||
+	    next_proto == IPPROTO_ESP	   ||
+	    next_proto == IPPROTO_AH	   ||
+	    next_proto == IPPROTO_DSTOPTS)
+		return rte_flow_error_set(error, EINVAL,
+					  RTE_FLOW_ERROR_TYPE_ITEM, item,
+					  "IPv6 proto (next header) should "
+					  "not be set as extension header");
 	return 0;
 }
 
-- 
2.35.1


             reply	other threads:[~2022-03-07 17:17 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-07 17:17 Gregory Etelson [this message]
2022-03-08  9:09 ` Raslan Darawsheh
2022-03-08 16:54   ` Raslan Darawsheh

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