diff mbox series

net/mlx5: fix metadata item validation for ingress flows

Message ID 20210210093051.2216-1-viacheslavo@nvidia.com (mailing list archive)
State Accepted
Delegated to: Raslan Darawsheh
Headers show
Series net/mlx5: fix metadata item validation for ingress flows | expand

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/iol-mellanox-Functional success Functional Testing PASS
ci/iol-mellanox-Performance success Performance Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-testing warning Testing issues
ci/intel-Testing success Testing PASS
ci/Intel-compilation success Compilation OK
ci/iol-broadcom-Functional success Functional Testing PASS
ci/iol-broadcom-Performance success Performance Testing PASS

Commit Message

Viacheslav Ovsiienko Feb. 10, 2021, 9:30 a.m. UTC
In legacy metadata mode the metadata register B is engaged to
handle the metadata item. In the ingress domain the hardware
supports the register setting only, the match on register B
is not supported.

Due to this limitation only the SET_META action can be supported
for the ingress flows, the META item should be rejected on
flow validation.

Fixes: 5f3541724e0 ("net/mlx5: fix flow META item validation")
Cc: stable@dpdk.org

Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
---
 drivers/net/mlx5/mlx5_flow_dv.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

Comments

Raslan Darawsheh Feb. 21, 2021, 3:36 p.m. UTC | #1
Hi,

> -----Original Message-----
> From: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> Sent: Wednesday, February 10, 2021 11:31 AM
> To: dev@dpdk.org
> Cc: Raslan Darawsheh <rasland@nvidia.com>; Matan Azrad
> <matan@nvidia.com>; stable@dpdk.org
> Subject: [PATCH] net/mlx5: fix metadata item validation for ingress flows
> 
> In legacy metadata mode the metadata register B is engaged to
> handle the metadata item. In the ingress domain the hardware
> supports the register setting only, the match on register B
> is not supported.
> 
> Due to this limitation only the SET_META action can be supported
> for the ingress flows, the META item should be rejected on
> flow validation.
> 
> Fixes: 5f3541724e0 ("net/mlx5: fix flow META item validation")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
> ---

Patch applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh
diff mbox series

Patch

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 76696b7b62..131d5de586 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -1960,13 +1960,20 @@  flow_dv_validate_item_meta(struct rte_eth_dev *dev __rte_unused,
 					  "isn't supported");
 		if (reg != REG_A)
 			nic_mask.data = priv->sh->dv_meta_mask;
-	} else if (attr->transfer) {
-		return rte_flow_error_set(error, ENOTSUP,
+	} else {
+		if (attr->transfer)
+			return rte_flow_error_set(error, ENOTSUP,
 					RTE_FLOW_ERROR_TYPE_ITEM, item,
 					"extended metadata feature "
 					"should be enabled when "
 					"meta item is requested "
 					"with e-switch mode ");
+		if (attr->ingress)
+			return rte_flow_error_set(error, ENOTSUP,
+					RTE_FLOW_ERROR_TYPE_ITEM, item,
+					"match on metadata for ingress "
+					"is not supported in legacy "
+					"metadata mode");
 	}
 	if (!mask)
 		mask = &rte_flow_item_meta_mask;