The packets handled by port representor action will be steered to
E-Switch manager and received by software.
This commit adds port representor action.
Signed-off-by: Suanming Mou <suanmi...@nvidia.com>
---
doc/guides/nics/mlx5.rst | 6 ++++
drivers/net/mlx5/mlx5.h | 2 ++
drivers/net/mlx5/mlx5_flow.h | 4 ++-
drivers/net/mlx5/mlx5_flow_hw.c | 55 +++++++++++++++++++++++++++++++++
4 files changed, 66 insertions(+), 1 deletion(-)
diff --git a/doc/guides/nics/mlx5.rst b/doc/guides/nics/mlx5.rst
index 7086f3d1d4..3c1da980e2 100644
--- a/doc/guides/nics/mlx5.rst
+++ b/doc/guides/nics/mlx5.rst
@@ -728,6 +728,12 @@ Limitations
The flow engine of a process cannot move from active to standby mode
if preceding active application rules are still present and vice versa.
+- A driver limitation for ``RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR`` action
restricts
+ the ``port_id`` configuration to only accept the value 0xffff, indicating
the E-Switch
+ manager. If the ``repr_matching_en`` flag is enabled, the traffic will be
directed
+ to the representor of the source virtual port (SF/VF), while if it is
disabled, the
+ traffic will be routed based on the steering rules in the ingress domain.
+
Statistics
----------
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index f3b872f59c..dad3600aa0 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -1858,6 +1858,8 @@ struct mlx5_priv {
struct mlx5dr_action *hw_drop[2];
/* HW steering global tag action. */
struct mlx5dr_action *hw_tag[2];
+ /* HW steering global default miss action. */
+ struct mlx5dr_action *hw_def_miss;
/* HW steering global send to kernel action. */
struct mlx5dr_action *hw_send_to_kernel[MLX5DR_TABLE_TYPE_MAX];
/* HW steering create ongoing rte flow table list header. */
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 53c11651c8..a851c6b506 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -359,6 +359,7 @@ enum mlx5_feature_name {
#define MLX5_FLOW_ACTION_INDIRECT_COUNT (1ull << 43)
#define MLX5_FLOW_ACTION_INDIRECT_AGE (1ull << 44)
#define MLX5_FLOW_ACTION_QUOTA (1ull << 46)
+#define MLX5_FLOW_ACTION_PORT_REPRESENTOR (1ull << 47)
#define MLX5_FLOW_DROP_INCLUSIVE_ACTIONS \
(MLX5_FLOW_ACTION_COUNT | MLX5_FLOW_ACTION_SAMPLE |
MLX5_FLOW_ACTION_AGE)
@@ -368,7 +369,8 @@ enum mlx5_feature_name {
MLX5_FLOW_ACTION_RSS | MLX5_FLOW_ACTION_JUMP | \
MLX5_FLOW_ACTION_DEFAULT_MISS | \
MLX5_FLOW_ACTION_METER_WITH_TERMINATED_POLICY | \
- MLX5_FLOW_ACTION_SEND_TO_KERNEL)
+ MLX5_FLOW_ACTION_SEND_TO_KERNEL | \
+ MLX5_FLOW_ACTION_PORT_REPRESENTOR)
#define MLX5_FLOW_FATE_ESWITCH_ACTIONS \
(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_PORT_ID | \
diff --git a/drivers/net/mlx5/mlx5_flow_hw.c b/drivers/net/mlx5/mlx5_flow_hw.c
index 5114cc1920..9feb40ddb3 100644
--- a/drivers/net/mlx5/mlx5_flow_hw.c
+++ b/drivers/net/mlx5/mlx5_flow_hw.c
@@ -1726,6 +1726,13 @@ __flow_hw_actions_translate(struct rte_eth_dev *dev,
acts->rule_acts[dr_pos].action =
priv->hw_drop[!!attr->group];
break;
+ case RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR:
+ if (!attr->group) {
+ DRV_LOG(ERR, "Port representor is not supported
in root table.");
+ goto err;
+ }
+ acts->rule_acts[dr_pos].action = priv->hw_def_miss;
+ break;
case RTE_FLOW_ACTION_TYPE_MARK:
acts->mark = true;
if (masks->conf &&
@@ -4140,6 +4147,36 @@ flow_hw_validate_action_modify_field(const struct
rte_flow_action *action,
"MPLS cannot be used as destination");
return 0;
}
+static int
+flow_hw_validate_action_port_representor(struct rte_eth_dev *dev __rte_unused,
+ const struct
rte_flow_actions_template_attr *attr,
+ const struct rte_flow_action *action,
+ const struct rte_flow_action *mask,
+ struct rte_flow_error *error)
+{
+ const struct rte_flow_action_ethdev *action_conf = NULL;
+ const struct rte_flow_action_ethdev *mask_conf = NULL;
+
+ /* If transfer is set, port has been validated as proxy port. */
+ if (!attr->transfer)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+ "cannot use port_representor actions"
+ " without an E-Switch");
+ if (!action || !mask)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+ "actiona and mask configuration must
be set");
+ action_conf = action->conf;
+ mask_conf = mask->conf;
+ if (!mask_conf || mask_conf->port_id != MLX5_REPRESENTED_PORT_ESW_MGR ||
+ !action_conf || action_conf->port_id !=
MLX5_REPRESENTED_PORT_ESW_MGR)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+ "only eswitch manager port 0xffff is"
+ " supported");
+ return 0;
+}
static int
flow_hw_validate_action_represented_port(struct rte_eth_dev *dev,
@@ -4504,6 +4541,7 @@ flow_hw_template_expand_modify_field(struct
rte_flow_action actions[],
case RTE_FLOW_ACTION_TYPE_QUEUE:
case RTE_FLOW_ACTION_TYPE_RSS:
case RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT:
+ case RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR:
case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
case RTE_FLOW_ACTION_TYPE_VOID:
case RTE_FLOW_ACTION_TYPE_END:
@@ -4740,6 +4778,13 @@ mlx5_flow_hw_actions_validate(struct rte_eth_dev *dev,
return ret;
action_flags |= MLX5_FLOW_ACTION_PORT_ID;
break;
+ case RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR:
+ ret = flow_hw_validate_action_port_representor
+ (dev, attr, action, mask, error);
+ if (ret < 0)
+ return ret;
+ action_flags |= MLX5_FLOW_ACTION_PORT_REPRESENTOR;
+ break;
case RTE_FLOW_ACTION_TYPE_AGE:
if (count_mask && count_mask->id)
fixed_cnt = true;
@@ -4818,6 +4863,7 @@ static enum mlx5dr_action_type mlx5_hw_dr_action_types[]
= {
[RTE_FLOW_ACTION_TYPE_NVGRE_DECAP] =
MLX5DR_ACTION_TYP_REFORMAT_TNL_L2_TO_L2,
[RTE_FLOW_ACTION_TYPE_MODIFY_FIELD] = MLX5DR_ACTION_TYP_MODIFY_HDR,
[RTE_FLOW_ACTION_TYPE_REPRESENTED_PORT] = MLX5DR_ACTION_TYP_VPORT,
+ [RTE_FLOW_ACTION_TYPE_PORT_REPRESENTOR] = MLX5DR_ACTION_TYP_MISS,
[RTE_FLOW_ACTION_TYPE_CONNTRACK] = MLX5DR_ACTION_TYP_ASO_CT,
[RTE_FLOW_ACTION_TYPE_OF_POP_VLAN] = MLX5DR_ACTION_TYP_POP_VLAN,
[RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN] = MLX5DR_ACTION_TYP_PUSH_VLAN,
@@ -8215,6 +8261,11 @@ flow_hw_configure(struct rte_eth_dev *dev,
goto err;
}
if (is_proxy) {
+ /* Only supported on proxy port. */
+ priv->hw_def_miss = mlx5dr_action_create_default_miss
+ (priv->dr_ctx, MLX5DR_ACTION_FLAG_HWS_FDB);
+ if (!priv->hw_def_miss)
+ goto err;
ret = flow_hw_create_vport_actions(priv);
if (ret) {
rte_flow_error_set(error, -ret,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
@@ -8303,6 +8354,8 @@ flow_hw_configure(struct rte_eth_dev *dev,
if (priv->hw_tag[i])
mlx5dr_action_destroy(priv->hw_tag[i]);
}
+ if (priv->hw_def_miss)
+ mlx5dr_action_destroy(priv->hw_def_miss);
flow_hw_destroy_vlan(dev);
if (dr_ctx)
claim_zero(mlx5dr_context_close(dr_ctx));
@@ -8375,6 +8428,8 @@ flow_hw_resource_release(struct rte_eth_dev *dev)
if (priv->hw_tag[i])
mlx5dr_action_destroy(priv->hw_tag[i]);
}
+ if (priv->hw_def_miss)
+ mlx5dr_action_destroy(priv->hw_def_miss);
flow_hw_destroy_vlan(dev);
flow_hw_destroy_send_to_kernel_action(priv);
flow_hw_free_vport_actions(priv);
--
2.34.1
