This commit adds support for RTE_FLOW_ACTION_TYPE_OF_POP_VLAN via
direct verbs flow rules.
Signed-off-by: Moti Haimovsky <mo...@mellanox.com>
---
drivers/net/mlx5/mlx5.c | 9 +++++
drivers/net/mlx5/mlx5.h | 1 +
drivers/net/mlx5/mlx5_flow.h | 5 ++-
drivers/net/mlx5/mlx5_flow_dv.c | 78 +++++++++++++++++++++++++++++++++++++++++
4 files changed, 92 insertions(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5.c b/drivers/net/mlx5/mlx5.c
index a3eacdb..4d0ff2d 100644
--- a/drivers/net/mlx5/mlx5.c
+++ b/drivers/net/mlx5/mlx5.c
@@ -538,6 +538,7 @@ struct mlx5_dev_spawn_data {
sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop();
}
#endif
+ sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
sh->dv_refcnt++;
priv->dr_shared = 1;
return 0;
@@ -560,6 +561,10 @@ struct mlx5_dev_spawn_data {
mlx5_glue->destroy_flow_action(sh->esw_drop_action);
sh->esw_drop_action = NULL;
}
+ if (sh->pop_vlan_action) {
+ mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
+ sh->pop_vlan_action = NULL;
+ }
return err;
#else
(void)priv;
@@ -605,6 +610,10 @@ struct mlx5_dev_spawn_data {
sh->esw_drop_action = NULL;
}
#endif
+ if (sh->pop_vlan_action) {
+ mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
+ sh->pop_vlan_action = NULL;
+ }
pthread_mutex_destroy(&sh->dv_mutex);
#else
(void)priv;
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index f559f83..4d457bf 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -570,6 +570,7 @@ struct mlx5_ibv_shared {
void *tx_domain; /* TX Direct Rules name space handle. */
struct mlx5_flow_tbl_resource tx_tbl[MLX5_MAX_TABLES];
void *esw_drop_action; /* Pointer to DR E-Switch drop action. */
+ void *pop_vlan_action; /* Pointer to DR pop VLAN action. */
/* TX Direct Rules tables/ */
LIST_HEAD(matchers, mlx5_flow_dv_matcher) matchers;
LIST_HEAD(encap_decap, mlx5_flow_dv_encap_decap_resource) encaps_decaps;
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 8d193b6..06b0470 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -154,7 +154,8 @@
#define MLX5_FLOW_DECAP_ACTIONS (MLX5_FLOW_ACTION_VXLAN_DECAP | \
MLX5_FLOW_ACTION_NVGRE_DECAP | \
- MLX5_FLOW_ACTION_RAW_DECAP)
+ MLX5_FLOW_ACTION_RAW_DECAP | \
+ MLX5_FLOW_ACTION_OF_POP_VLAN)
#define MLX5_FLOW_MODIFY_HDR_ACTIONS (MLX5_FLOW_ACTION_SET_IPV4_SRC | \
MLX5_FLOW_ACTION_SET_IPV4_DST | \
@@ -171,6 +172,8 @@
MLX5_FLOW_ACTION_INC_TCP_ACK | \
MLX5_FLOW_ACTION_DEC_TCP_ACK)
+#define MLX5_FLOW_VLAN_ACTIONS (MLX5_FLOW_ACTION_OF_POP_VLAN)
+
#ifndef IPPROTO_MPLS
#define IPPROTO_MPLS 137
#endif
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index ca7252a..05e9c7b 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -831,6 +831,61 @@ struct field_modify_info modify_tcp[] = {
}
/**
+ * Validate the pop VLAN action.
+ *
+ * @param[in] action_flags
+ * Holds the actions detected until now.
+ * @param[in] action
+ * Pointer to the pop vlan action.
+ * @param[in] item_flags
+ * The items found in this flow rule.
+ * @param[in] attr
+ * Pointer to flow attributes.
+ * @param[out] error
+ * Pointer to error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_validate_action_pop_vlan(struct rte_eth_dev *dev,
+ uint64_t action_flags,
+ const struct rte_flow_action *action,
+ uint64_t item_flags,
+ const struct rte_flow_attr *attr,
+ struct rte_flow_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+
+ (void)action;
+ (void)attr;
+ if (!priv->sh->pop_vlan_action)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "pop vlan action is not supported");
+ /*
+ * Check for inconsistencies:
+ * fail strip_vlan in a flow that matches packets without VLAN tags.
+ * fail strip_vlan in a flow that matches packets without explicitly a
+ * matching on VLAN tag ?
+ */
+ if (action_flags & MLX5_FLOW_ACTION_OF_POP_VLAN)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "no support for multiple vlan pop "
+ "actions");
+ if (!(item_flags & MLX5_FLOW_LAYER_OUTER_VLAN))
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "cannot pop vlan without a "
+ "match on (outer) vlan in the flow");
+ return 0;
+}
+
+/**
* Validate count action.
*
* @param[in] dev
@@ -3108,6 +3163,16 @@ struct field_modify_info modify_tcp[] = {
action_flags |= MLX5_FLOW_ACTION_COUNT;
++actions_n;
break;
+ case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
+ if (flow_dv_validate_action_pop_vlan(dev,
+ action_flags,
+ actions,
+ item_flags, attr,
+ error))
+ return -rte_errno;
+ action_flags |= MLX5_FLOW_ACTION_OF_POP_VLAN;
+ ++actions_n;
+ break;
case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
ret = flow_dv_validate_action_l2_encap(action_flags,
@@ -3281,6 +3346,13 @@ struct field_modify_info modify_tcp[] = {
"action not supported");
}
}
+ if ((action_flags & MLX5_FLOW_LAYER_TUNNEL) &&
+ (action_flags & MLX5_FLOW_VLAN_ACTIONS))
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ actions,
+ "can't have vxlan and vlan"
+ " actions in the same rule");
/* Eswitch has few restrictions on using items and actions */
if (attr->transfer) {
if (action_flags & MLX5_FLOW_ACTION_FLAG)
@@ -4798,6 +4870,12 @@ struct field_modify_info modify_tcp[] = {
action,
"cannot create counter"
" object.");
+ break;
+ case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
+ dev_flow->dv.actions[actions_n++] =
+ priv->sh->pop_vlan_action;
+ action_flags |= MLX5_FLOW_ACTION_OF_POP_VLAN;
+ break;
case RTE_FLOW_ACTION_TYPE_VXLAN_ENCAP:
case RTE_FLOW_ACTION_TYPE_NVGRE_ENCAP:
if (flow_dv_create_action_l2_encap(dev, actions,
--
1.8.3.1
