Add HW steering support for IPv6 traffic class field modification.
Copy from inner IPv6 traffic class 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 | 11 +++++++++++
drivers/net/mlx5/mlx5_flow_hw.c | 3 ++-
3 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/doc/guides/rel_notes/release_24_03.rst
b/doc/guides/rel_notes/release_24_03.rst
index 0473858e19..c2fc22ed66 100644
--- a/doc/guides/rel_notes/release_24_03.rst
+++ b/doc/guides/rel_notes/release_24_03.rst
@@ -127,6 +127,7 @@ New Features
* Added support for GENEVE matching and modifying in HWS flow engine.
* 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 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 feda003c07..2c0c8e37f7 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -1394,6 +1394,7 @@ 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_TRAFFIC_CLASS:
case RTE_FLOW_FIELD_IPV6_HOPLIMIT:
case RTE_FLOW_FIELD_IPV6_PROTO:
return 8;
@@ -1795,6 +1796,16 @@ mlx5_flow_field_id_to_modify_info
else
info[idx].offset = off_be;
break;
+ case RTE_FLOW_FIELD_IPV6_TRAFFIC_CLASS:
+ MLX5_ASSERT(data->offset + width <= 8);
+ off_be = 8 - (data->offset + width);
+ modi_id = CALC_MODI_ID(IPV6_TRAFFIC_CLASS, data->level);
+ info[idx] = (struct field_modify_info){1, 0, modi_id};
+ if (mask)
+ mask[idx] = flow_modify_info_mask_8(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 fc1bcdd84e..9d4fdb06c1 100644
--- a/drivers/net/mlx5/mlx5_flow_hw.c
+++ b/drivers/net/mlx5/mlx5_flow_hw.c
@@ -2878,7 +2878,7 @@ flow_hw_modify_field_construct(struct mlx5_hw_q_job *job,
* bits left. Shift the data left for IPv6 DSCP
*/
if (field->id == MLX5_MODI_OUT_IPV6_TRAFFIC_CLASS &&
- !(mask & MLX5_IPV6_HDR_ECN_MASK))
+ mhdr_action->dst.field == RTE_FLOW_FIELD_IPV6_DSCP)
data <<= MLX5_IPV6_HDR_DSCP_SHIFT;
data = (data & mask) >> off_b;
job->mhdr_cmd[i++].data1 = rte_cpu_to_be_32(data);
@@ -5067,6 +5067,7 @@ flow_hw_validate_modify_field_level(const struct
rte_flow_field_data *data,
case RTE_FLOW_FIELD_IPV4_TTL:
case RTE_FLOW_FIELD_IPV4_SRC:
case RTE_FLOW_FIELD_IPV4_DST:
+ case RTE_FLOW_FIELD_IPV6_TRAFFIC_CLASS:
case RTE_FLOW_FIELD_IPV6_PAYLOAD_LEN:
case RTE_FLOW_FIELD_IPV6_HOPLIMIT:
case RTE_FLOW_FIELD_IPV6_SRC:
--
2.25.1
