From: Shiri Kuzin <shirik@nvidia.com>
To: stable@dpdk.org
Cc: christian.ehrhardt@canonical.com, viacheslavo@nvidia.com,
Suanming Mou <suanmingm@nvidia.com>
Subject: [dpdk-stable] [PATCH 19.11] net/mlx5: fix VXLAN decap on non-VXLAN flow
Date: Mon, 8 Feb 2021 19:23:31 +0200 [thread overview]
Message-ID: <20210208172331.27624-1-shirik@nvidia.com> (raw)
[ upstream commit d362e6f6ac6d90c02dc773bd0e39ec0c05db2925 ]
The vxlan_decap action performs decapsulation of the VXLAN tunnel.
Currently we can create a flow with vxlan_decap without
matching on VXLAN header.
To solve this issue this patch adds validation verifying
that the VXLAN item was detected when specifying
vxlan_decap action.
Fixes: 49d6465af3e1 ("net/mlx5: add VXLAN decap action to Direct Verbs")
Signed-off-by: Shiri Kuzin <shirik@nvidia.com>
Reviewed-by: Suanming Mou <suanmingm@nvidia.com>
---
drivers/net/mlx5/mlx5_flow_dv.c | 27 ++++++++++++++++++++++-----
1 file changed, 22 insertions(+), 5 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 4ba1df7027..1dbc584df1 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -2254,6 +2254,10 @@ flow_dv_validate_action_l2_encap(struct rte_eth_dev *dev,
* Pointer to the rte_eth_dev structure.
* @param[in] action_flags
* Holds the actions detected until now.
+ * @param[in] action
+ * Pointer to the action structure.
+ * @param[in] item_flags
+ * Holds the items detected.
* @param[in] attr
* Pointer to flow attributes
* @param[out] error
@@ -2265,6 +2269,8 @@ flow_dv_validate_action_l2_encap(struct rte_eth_dev *dev,
static int
flow_dv_validate_action_decap(struct rte_eth_dev *dev,
uint64_t action_flags,
+ const struct rte_flow_action *action,
+ const uint64_t item_flags,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
@@ -2293,6 +2299,11 @@ flow_dv_validate_action_decap(struct rte_eth_dev *dev,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"decap action for VF representor "
"not supported on NIC table");
+ if (action->type == RTE_FLOW_ACTION_TYPE_VXLAN_DECAP &&
+ !(item_flags & MLX5_FLOW_LAYER_VXLAN))
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+ "VXLAN item should be present for VXLAN decap");
return 0;
}
@@ -2313,6 +2324,10 @@ const struct rte_flow_action_raw_decap empty_decap = {.data = NULL, .size = 0,};
* Holds the actions detected until now.
* @param[out] actions_n
* pointer to the number of actions counter.
+ * @param[in] action
+ * Pointer to the action structure.
+ * @param[in] item_flags
+ * Holds the items detected.
* @param[out] error
* Pointer to error structure.
*
@@ -2325,7 +2340,8 @@ flow_dv_validate_action_raw_encap_decap
const struct rte_flow_action_raw_decap *decap,
const struct rte_flow_action_raw_encap *encap,
const struct rte_flow_attr *attr, uint64_t *action_flags,
- int *actions_n, struct rte_flow_error *error)
+ int *actions_n, const struct rte_flow_action *action,
+ uint64_t item_flags, struct rte_flow_error *error)
{
const struct mlx5_priv *priv = dev->data->dev_private;
int ret;
@@ -2360,8 +2376,8 @@ flow_dv_validate_action_raw_encap_decap
"encap combination");
}
if (decap) {
- ret = flow_dv_validate_action_decap(dev, *action_flags, attr,
- error);
+ ret = flow_dv_validate_action_decap(dev, *action_flags, action,
+ item_flags, attr, error);
if (ret < 0)
return ret;
*action_flags |= MLX5_FLOW_ACTION_DECAP;
@@ -4975,6 +4991,7 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
case RTE_FLOW_ACTION_TYPE_VXLAN_DECAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_DECAP:
ret = flow_dv_validate_action_decap(dev, action_flags,
+ actions, item_flags,
attr, error);
if (ret < 0)
return ret;
@@ -4984,7 +5001,7 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
ret = flow_dv_validate_action_raw_encap_decap
(dev, NULL, actions->conf, attr, &action_flags,
- &actions_n, error);
+ &actions_n, actions, item_flags, error);
if (ret < 0)
return ret;
break;
@@ -5002,7 +5019,7 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
(dev,
decap ? decap : &empty_decap, encap,
attr, &action_flags, &actions_n,
- error);
+ actions, item_flags, error);
if (ret < 0)
return ret;
break;
--
2.21.0
reply other threads:[~2021-02-08 17:24 UTC|newest]
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