The MODIFY_FIELD RTE action rejects copy to/from metadata
in case of the legacy mode extensive flow metadata support.
It is not consistent with SET_META action that has no such
restriction imposed. Registers A or B are used for META in
legacy mode. Allow meta modifications in legacy mode as well.
On other hand, SET_META rejects actions in case register C
is not available even though it is not needed in legacy mode.
Skip this check for legacy mode and allow setting META.
Fixes: edf325d421 ("net/mlx5: check extended metadata for meta modification")
Cc: sta...@dpdk.org
Signed-off-by: Alexander Kozyrev <akozy...@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viachesl...@nvidia.com>
---
drivers/net/mlx5/mlx5_flow_dv.c | 25 +++++++++++++++++++------
1 file changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 9cba22ca2d..2c5cbec71b 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -3199,7 +3199,8 @@ flow_dv_validate_action_set_meta(struct rte_eth_dev *dev,
uint32_t nic_mask = UINT32_MAX;
int reg;
- if (!mlx5_flow_ext_mreg_supported(dev))
+ 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,
"extended metadata register"
@@ -4929,15 +4930,27 @@ flow_dv_validate_action_modify_field(struct rte_eth_dev
*dev,
"modifications of the GENEVE Network"
" Identifier is not supported");
if (action_modify_field->dst.field == RTE_FLOW_FIELD_MARK ||
- action_modify_field->src.field == RTE_FLOW_FIELD_MARK ||
- action_modify_field->dst.field == RTE_FLOW_FIELD_META ||
- action_modify_field->src.field == RTE_FLOW_FIELD_META) {
+ 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 or metadata without"
- " extended metadata register support");
+ "cannot modify mark in legacy mode"
+ " or without extensive registers");
+ if (action_modify_field->dst.field == RTE_FLOW_FIELD_META ||
+ action_modify_field->src.field == RTE_FLOW_FIELD_META) {
+ 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 meta without"
+ " extensive registers support");
+ ret = flow_dv_get_metadata_reg(dev, attr, error);
+ if (ret < 0 || ret == REG_NON)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION, action,
+ "cannot modify meta without"
+ " extensive registers available");
}
if (action_modify_field->operation != RTE_FLOW_MODIFY_SET)
return rte_flow_error_set(error, ENOTSUP,
--
2.18.2
