[dpdk-dev] [PATCH v2 3/6] net/mlx5: check extended metadata for mark modififcation
From: Alexander Kozyrev <hidden>
Date: 2021-03-24 15:05:27
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
The MODIFY_FIELD RTE action requires the extended metadata support
in order to manipulate on MARK register. Check if it is supported
and reject the MODIFY_FIELD action if it is not.
Fixes: 641dbe4fb0 ("net/mlx5: support modify field flow action")
Cc: stable@dpdk.org
Signed-off-by: Alexander Kozyrev <redacted>
---
drivers/net/mlx5/mlx5_flow_dv.c | 24 +++++++++++++++++++-----
1 file changed, 19 insertions(+), 5 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index a1e4e2e5df..f2bc3162c1 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c@@ -4542,7 +4542,8 @@ mlx5_flow_item_field_width(enum rte_flow_field_id field) /** * Validate the generic modify field actions. - * + * @param[in] dev + * Pointer to the rte_eth_dev structure. * @param[in] action_flags * Holds the actions detected until now. * @param[in] action
@@ -4557,11 +4558,14 @@ mlx5_flow_item_field_width(enum rte_flow_field_id field) * a negative errno value otherwise and rte_errno is set. */ static int -flow_dv_validate_action_modify_field(const uint64_t action_flags, +flow_dv_validate_action_modify_field(struct rte_eth_dev *dev, + const uint64_t action_flags, const struct rte_flow_action *action, struct rte_flow_error *error) { int ret = 0; + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_dev_config *config = &priv->config; const struct rte_flow_action_modify_field *action_modify_field = action->conf; uint32_t dst_width =
@@ -4640,6 +4644,15 @@ flow_dv_validate_action_modify_field(const uint64_t action_flags, NULL, "modifications of an arbitrary" " place in a packet is not supported"); + if (action_modify_field->dst.field == RTE_FLOW_FIELD_MARK || + action_modify_field->src.field == RTE_FLOW_FIELD_MARK) { + if (config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY || + !mlx5_flow_ext_mreg_supported(dev)) + return rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, action, + "cannot modify mark without extended" + " metadata register support"); + } if (action_modify_field->operation != RTE_FLOW_MODIFY_SET) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
@@ -6914,9 +6927,10 @@ flow_dv_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr, RTE_FLOW_ERROR_TYPE_ACTION, NULL, "modify field action " "is not supported for group 0"); - ret = flow_dv_validate_action_modify_field(action_flags, - actions, - error); + ret = flow_dv_validate_action_modify_field(dev, + action_flags, + actions, + error); if (ret < 0) return ret; /* Count all modify-header actions as one action. */
--
2.24.1