diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst index 27384d5a86b..f8930cb9028 100644 --- a/doc/guides/nics/mlx5.rst +++ b/doc/guides/nics/mlx5.rst @@ -167,6 +167,7 @@ Features - Sub-Function. - Matching on represented port. - Matching on aggregated affinity. +- Matching on random value. Limitations @@ -571,6 +572,7 @@ Limitations - Modification of the MPLS header is supported only in HWS and only to copy from, the encapsulation level is always 0. - Modification of the 802.1Q Tag, VXLAN Network or GENEVE Network ID's is not supported. + - Modify field action using ``RTE_FLOW_FIELD_RANDOM`` is not supported. - Encapsulation levels are not supported, can modify outermost header fields only. - Offsets cannot skip past the boundary of a field. - If the field type is ``RTE_FLOW_FIELD_MAC_TYPE`` @@ -777,6 +779,13 @@ Limitations - In HW steering (``dv_flow_en`` = 2): - not supported on guest port. +- Match on random value: + + - Supported only with HW Steering enabled (``dv_flow_en`` = 2). + - Supported only in table with ``nb_flows=1``. + - NIC ingress/egress flow in group 0 is not supported. + - Supports matching only 16 bits (LSB). + - During live migration to a new process set its flow engine as standby mode, the user should only program flow rules in group 0 (``fdb_def_rule_en=0``). Live migration is only supported under SWS (``dv_flow_en=1``). diff --git a/doc/guides/rel_notes/release_24_03.rst b/doc/guides/rel_notes/release_24_03.rst index 5e545da8673..a1dfea263ca 100644 --- a/doc/guides/rel_notes/release_24_03.rst +++ b/doc/guides/rel_notes/release_24_03.rst @@ -75,6 +75,7 @@ New Features * Added support for VXLAN-GPE matching in HW Steering flow engine (``dv_flow_en`` = 2). + * Added support for ``RTE_FLOW_ITEM_TYPE_RANDOM`` flow item. Removed Items ------------- diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c index bc0572a763f..88b5c207582 100644 --- a/drivers/net/mlx5/mlx5_flow_dv.c +++ b/drivers/net/mlx5/mlx5_flow_dv.c @@ -5496,6 +5496,11 @@ flow_dv_validate_action_modify_field(struct rte_eth_dev *dev, RTE_FLOW_ERROR_TYPE_ACTION, action, "modifications of the MPLS header " "is not supported"); + if (dst_data->field == RTE_FLOW_FIELD_RANDOM || + src_data->field == RTE_FLOW_FIELD_RANDOM) + return rte_flow_error_set(error, ENOTSUP, + RTE_FLOW_ERROR_TYPE_ACTION, action, + "modifications of random value is not supported"); if (dst_data->field == RTE_FLOW_FIELD_MARK || src_data->field == RTE_FLOW_FIELD_MARK) if (config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY || diff --git a/drivers/net/mlx5/mlx5_flow_hw.c b/drivers/net/mlx5/mlx5_flow_hw.c index 48b70c0c295..f06d2ce2737 100644 --- a/drivers/net/mlx5/mlx5_flow_hw.c +++ b/drivers/net/mlx5/mlx5_flow_hw.c @@ -5085,6 +5085,10 @@ flow_hw_validate_action_modify_field(struct rte_eth_dev *dev, return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, action, "modifying vlan_type is not supported"); + if (flow_hw_modify_field_is_used(action_conf, RTE_FLOW_FIELD_RANDOM)) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, action, + "modifying random value is not supported"); if (flow_hw_modify_field_is_used(action_conf, RTE_FLOW_FIELD_GENEVE_VNI)) return rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION, action, @@ -6851,6 +6855,7 @@ flow_hw_pattern_validate(struct rte_eth_dev *dev, case RTE_FLOW_ITEM_TYPE_FLEX: case RTE_FLOW_ITEM_TYPE_IB_BTH: case RTE_FLOW_ITEM_TYPE_PTYPE: + case RTE_FLOW_ITEM_TYPE_RANDOM: break; case RTE_FLOW_ITEM_TYPE_INTEGRITY: /*