Add HW steering support for IPv6 flow label field modification.
Copy from inner IPv6 flow label field is also supported using "level=2".
Signed-off-by: Michael Baum <michae...@nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnow...@nvidia.com>
---
doc/guides/rel_notes/release_24_03.rst | 1 +
drivers/net/mlx5/mlx5_flow_dv.c | 12 ++++++++++++
drivers/net/mlx5/mlx5_flow_hw.c | 1 +
3 files changed, 14 insertions(+)
diff --git a/doc/guides/rel_notes/release_24_03.rst
b/doc/guides/rel_notes/release_24_03.rst
index c2fc22ed66..ff9c6552e4 100644
--- a/doc/guides/rel_notes/release_24_03.rst
+++ b/doc/guides/rel_notes/release_24_03.rst
@@ -128,6 +128,7 @@ New Features
* Added support for modifying IPv4 proto field in HWS flow engine.
* Added support for modifying IPsec ESP fields in HWS flow engine.
* Added support for modifying IPv6 traffic class field in HWS flow engine.
+ * Added support for modifying IPv6 flow label field in HWS flow engine.
* Added support for matching a random value.
* Added support for comparing result between packet fields or value.
* Added support for accumulating value of field into another one.
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 2c0c8e37f7..75a8a223ab 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -1394,6 +1394,8 @@ mlx5_flow_item_field_width(struct rte_eth_dev *dev,
return 32;
case RTE_FLOW_FIELD_IPV6_DSCP:
return 6;
+ case RTE_FLOW_FIELD_IPV6_FLOW_LABEL:
+ return 20;
case RTE_FLOW_FIELD_IPV6_TRAFFIC_CLASS:
case RTE_FLOW_FIELD_IPV6_HOPLIMIT:
case RTE_FLOW_FIELD_IPV6_PROTO:
@@ -1806,6 +1808,16 @@ mlx5_flow_field_id_to_modify_info
else
info[idx].offset = off_be;
break;
+ case RTE_FLOW_FIELD_IPV6_FLOW_LABEL:
+ MLX5_ASSERT(data->offset + width <= 20);
+ off_be = 20 - (data->offset + width);
+ modi_id = CALC_MODI_ID(IPV6_FLOW_LABEL, data->level);
+ info[idx] = (struct field_modify_info){4, 0, modi_id};
+ if (mask)
+ mask[idx] = flow_modify_info_mask_32(width, off_be);
+ else
+ info[idx].offset = off_be;
+ break;
case RTE_FLOW_FIELD_IPV6_PAYLOAD_LEN:
MLX5_ASSERT(data->offset + width <= 16);
off_be = 16 - (data->offset + width);
diff --git a/drivers/net/mlx5/mlx5_flow_hw.c b/drivers/net/mlx5/mlx5_flow_hw.c
index 9d4fdb06c1..254273e0fb 100644
--- a/drivers/net/mlx5/mlx5_flow_hw.c
+++ b/drivers/net/mlx5/mlx5_flow_hw.c
@@ -5068,6 +5068,7 @@ flow_hw_validate_modify_field_level(const struct
rte_flow_field_data *data,
case RTE_FLOW_FIELD_IPV4_SRC:
case RTE_FLOW_FIELD_IPV4_DST:
case RTE_FLOW_FIELD_IPV6_TRAFFIC_CLASS:
+ case RTE_FLOW_FIELD_IPV6_FLOW_LABEL:
case RTE_FLOW_FIELD_IPV6_PAYLOAD_LEN:
case RTE_FLOW_FIELD_IPV6_HOPLIMIT:
case RTE_FLOW_FIELD_IPV6_SRC:
--
2.25.1
