The vxlan_decap action preforms 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")
Cc: sta...@dpdk.org
Signed-off-by: Shiri Kuzin <shi...@nvidia.com>
Reviewed-by: Suanming Mou <suanmi...@nvidia.com>
---
drivers/net/mlx5/mlx5_flow_dv.c | 35 ++++++++++++++++++++++++++-------
1 file changed, 28 insertions(+), 7 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 4f638e24ad..929cd1d8f2 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -2612,6 +2612,10 @@ 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
@@ -2623,6 +2627,8 @@ 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)
{
@@ -2656,6 +2662,11 @@ 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;
}
@@ -2676,6 +2687,10 @@ 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.
*
@@ -2688,7 +2703,8 @@ 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;
@@ -2723,8 +2739,8 @@ 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;
@@ -4326,6 +4342,8 @@ flow_dv_modify_create_cb(struct mlx5_hlist *list,
uint64_t key __rte_unused,
* Pointer to the Ethernet device structure.
* @param[in] attr
* Attributes of flow that includes this action.
+ * @param[in] item_flags
+ * Holds the items detected.
* @param[out] error
* Pointer to error structure.
*
@@ -4337,6 +4355,7 @@ flow_dv_validate_action_sample(uint64_t action_flags,
const struct rte_flow_action *action,
struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
+ const uint64_t item_flags,
struct rte_flow_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
@@ -4430,7 +4449,7 @@ flow_dv_validate_action_sample(uint64_t action_flags,
case RTE_FLOW_ACTION_TYPE_RAW_ENCAP:
ret = flow_dv_validate_action_raw_encap_decap
(dev, NULL, act->conf, attr, &sub_action_flags,
- &actions_n, error);
+ &actions_n, action, item_flags, error);
if (ret < 0)
return ret;
++actions_n;
@@ -5764,6 +5783,7 @@ 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;
@@ -5773,7 +5793,7 @@ 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;
@@ -5791,7 +5811,7 @@ 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;
@@ -6006,7 +6026,8 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct
rte_flow_attr *attr,
case RTE_FLOW_ACTION_TYPE_SAMPLE:
ret = flow_dv_validate_action_sample(action_flags,
actions, dev,
- attr, error);
+ attr, item_flags,
+ error);
if (ret < 0)
return ret;
action_flags |= MLX5_FLOW_ACTION_SAMPLE;
--
2.21.0
