[dpdk-dev] [PATCH v2 6/6] net/mlx5: reject VXLAN ID's modifications
From: Alexander Kozyrev <hidden>
Date: 2021-03-24 15:05:02
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Modification of the 802.1Q Tag Identificator, VXLAN Network
Identificator or GENEVE Network Identificator is not supported.
Reject attempt to modify these fields via the MODIFY_FIELD
action and document this mlx5 driver limitation.
Fixes: 641dbe4fb0 ("net/mlx5: support modify field flow action")
Cc: stable@dpdk.org
Signed-off-by: Alexander Kozyrev <redacted>
---
doc/guides/nics/mlx5.rst | 1 +
drivers/net/mlx5/mlx5_flow_dv.c | 21 +++++++++++++++++++++
2 files changed, 22 insertions(+)
diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index a2cfc51b2a..92369fa5ee 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst@@ -383,6 +383,7 @@ Limitations - Supports the 'set' operation only for ``RTE_FLOW_ACTION_TYPE_MODIFY_FIELD`` action. - Modification of an arbitrary place in a packet via the special ``RTE_FLOW_FIELD_START`` Field ID is not supported. + - Modification of the 802.1Q Tag, VXLAN Network or GENEVE Network ID's is not supported. - Encapsulation levels are not supported, can modify outermost header fields only. - Offsets must be 32-bits aligned, cannot skip past the boundary of a field.
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index ecabf63f53..223a7d0e36 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c@@ -4650,6 +4650,27 @@ flow_dv_validate_action_modify_field(struct rte_eth_dev *dev, NULL, "modifications of an arbitrary" " place in a packet is not supported"); + if (action_modify_field->dst.field == RTE_FLOW_FIELD_VLAN_TYPE || + action_modify_field->src.field == RTE_FLOW_FIELD_VLAN_TYPE) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, + NULL, + "modifications of the 802.1Q Tag" + " Identifier is not supported"); + if (action_modify_field->dst.field == RTE_FLOW_FIELD_VXLAN_VNI || + action_modify_field->src.field == RTE_FLOW_FIELD_VXLAN_VNI) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, + NULL, + "modifications of the VXLAN Network" + " Identifier is not supported"); + if (action_modify_field->dst.field == RTE_FLOW_FIELD_GENEVE_VNI || + action_modify_field->src.field == RTE_FLOW_FIELD_GENEVE_VNI) + return rte_flow_error_set(error, EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, + NULL, + "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) { if (config->dv_xmeta_en == MLX5_XMETA_MODE_LEGACY ||
--
2.24.1