Add sample action validate function.
Sample Flow is supported in NIC-RX and FDB domains. For the NIC-RX
the Sample Flow action list must include the destination queue action.
Only NIC-RX domain supports the optional actions list. FDB doesn't
support any optional actions, the sampled packets is always forwarded
to the E-Switch manager port.
Signed-off-by: Jiawei Wang <jiaw...@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viachesl...@nvidia.com>
---
drivers/net/mlx5/linux/mlx5_os.c | 14 ++++
drivers/net/mlx5/mlx5.h | 1 +
drivers/net/mlx5/mlx5_flow.h | 1 +
drivers/net/mlx5/mlx5_flow_dv.c | 137 +++++++++++++++++++++++++++++++++++++++
4 files changed, 153 insertions(+)
diff --git a/drivers/net/mlx5/linux/mlx5_os.c b/drivers/net/mlx5/linux/mlx5_os.c
index 81a2e99..0d6648d 100644
--- a/drivers/net/mlx5/linux/mlx5_os.c
+++ b/drivers/net/mlx5/linux/mlx5_os.c
@@ -1035,6 +1035,20 @@
}
}
#endif
+#if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE)
+ if (config->hca_attr.log_max_ft_sampler_num > 0 &&
+ config->dv_flow_en) {
+ priv->sampler_en = 1;
+ DRV_LOG(DEBUG, "The Sampler enabled!\n");
+ } else {
+ priv->sampler_en = 0;
+ if (!config->hca_attr.log_max_ft_sampler_num)
+ DRV_LOG(WARNING, "No available register for"
+ " Sampler.");
+ else
+ DRV_LOG(DEBUG, "DV flow is not supported!\n");
+ }
+#endif
}
if (config->tx_pp) {
DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz",
diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h
index 0907506..954c4a9 100644
--- a/drivers/net/mlx5/mlx5.h
+++ b/drivers/net/mlx5/mlx5.h
@@ -772,6 +772,7 @@ struct mlx5_priv {
unsigned int counter_fallback:1; /* Use counter fallback management. */
unsigned int mtr_en:1; /* Whether support meter. */
unsigned int mtr_reg_share:1; /* Whether support meter REG_C share. */
+ unsigned int sampler_en:1; /* Whether support sampler. */
uint16_t domain_id; /* Switch domain identifier. */
uint16_t vport_id; /* Associated VF vport index (if any). */
uint32_t vport_meta_tag; /* Used for vport index match ove VF LAG. */
diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h
index 279daf2..f47170d 100644
--- a/drivers/net/mlx5/mlx5_flow.h
+++ b/drivers/net/mlx5/mlx5_flow.h
@@ -196,6 +196,7 @@ enum mlx5_feature_name {
#define MLX5_FLOW_ACTION_SET_IPV6_DSCP (1ull << 33)
#define MLX5_FLOW_ACTION_AGE (1ull << 34)
#define MLX5_FLOW_ACTION_DEFAULT_MISS (1ull << 35)
+#define MLX5_FLOW_ACTION_SAMPLE (1ull << 36)
#define MLX5_FLOW_FATE_ACTIONS \
(MLX5_FLOW_ACTION_DROP | MLX5_FLOW_ACTION_QUEUE | \
diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 3819cdb..7809db1 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -4042,6 +4042,134 @@ struct field_modify_info modify_tcp[] = {
}
/**
+ * Validate the sample action.
+ *
+ * @param[in] action_flags
+ * Holds the actions detected until now.
+ * @param[in] action
+ * Pointer to the sample action.
+ * @param[in] dev
+ * Pointer to the Ethernet device structure.
+ * @param[in] attr
+ * Attributes of flow that includes this action.
+ * @param[out] error
+ * Pointer to error structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+static int
+flow_dv_validate_action_sample(uint64_t action_flags,
+ const struct rte_flow_action *action,
+ struct rte_eth_dev *dev,
+ const struct rte_flow_attr *attr,
+ struct rte_flow_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_dev_config *dev_conf = &priv->config;
+ const struct rte_flow_action_sample *sample = action->conf;
+ const struct rte_flow_action *act;
+ uint64_t sub_action_flags = 0;
+ int actions_n = 0;
+ int ret;
+
+ if (!sample)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION, action,
+ "configuration cannot be NULL");
+ if (sample->ratio == 0)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION, action,
+ "ratio value starts from 1");
+ if (!priv->config.devx || (sample->ratio > 0 && !priv->sampler_en))
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "sample action not supported");
+ if (action_flags & MLX5_FLOW_ACTION_SAMPLE)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION, NULL,
+ "Multiple sample actions not "
+ "supported");
+ if (action_flags & MLX5_FLOW_ACTION_METER)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION, action,
+ "wrong action order, meter should "
+ "be after sample action");
+ if (action_flags & MLX5_FLOW_ACTION_JUMP)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION, action,
+ "wrong action order, jump should "
+ "be after sample action");
+ act = sample->actions;
+ for (; act->type != RTE_FLOW_ACTION_TYPE_END; act++) {
+ if (actions_n == MLX5_DV_MAX_NUMBER_OF_ACTIONS)
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ act, "too many actions");
+ switch (act->type) {
+ case RTE_FLOW_ACTION_TYPE_QUEUE:
+ ret = mlx5_flow_validate_action_queue(act,
+ sub_action_flags,
+ dev,
+ attr, error);
+ if (ret < 0)
+ return ret;
+ sub_action_flags |= MLX5_FLOW_ACTION_QUEUE;
+ ++actions_n;
+ break;
+ case RTE_FLOW_ACTION_TYPE_MARK:
+ ret = flow_dv_validate_action_mark(dev, act,
+ sub_action_flags,
+ attr, error);
+ if (ret < 0)
+ return ret;
+ if (dev_conf->dv_xmeta_en != MLX5_XMETA_MODE_LEGACY)
+ sub_action_flags |= MLX5_FLOW_ACTION_MARK |
+ MLX5_FLOW_ACTION_MARK_EXT;
+ else
+ sub_action_flags |= MLX5_FLOW_ACTION_MARK;
+ ++actions_n;
+ break;
+ case RTE_FLOW_ACTION_TYPE_COUNT:
+ ret = flow_dv_validate_action_count(dev, error);
+ if (ret < 0)
+ return ret;
+ sub_action_flags |= MLX5_FLOW_ACTION_COUNT;
+ ++actions_n;
+ break;
+ default:
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ NULL,
+ "Doesn't support optional "
+ "action");
+ }
+ }
+ if (attr->ingress && !attr->transfer) {
+ if (!(sub_action_flags & MLX5_FLOW_ACTION_QUEUE))
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ NULL,
+ "Ingress must has a dest "
+ "QUEUE for Sample");
+ } else if (attr->egress && !attr->transfer) {
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ NULL,
+ "Sample Only support Ingress "
+ "or E-Switch");
+ } else if (sample->actions->type != RTE_FLOW_ACTION_TYPE_END) {
+ MLX5_ASSERT(attr->transfer);
+ return rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ACTION, NULL,
+ "E-Switch doesn't support any "
+ "optional action for sampling");
+ }
+ return 0;
+}
+
+/**
* Find existing modify-header resource or create and register a new one.
*
* @param dev[in, out]
@@ -5803,6 +5931,15 @@ struct field_modify_info modify_tcp[] = {
action_flags |= MLX5_FLOW_ACTION_SET_IPV6_DSCP;
rw_act_num += MLX5_ACT_NUM_SET_DSCP;
break;
+ case RTE_FLOW_ACTION_TYPE_SAMPLE:
+ ret = flow_dv_validate_action_sample(action_flags,
+ actions, dev,
+ attr, error);
+ if (ret < 0)
+ return ret;
+ action_flags |= MLX5_FLOW_ACTION_SAMPLE;
+ ++actions_n;
+ break;
default:
return rte_flow_error_set(error, ENOTSUP,
RTE_FLOW_ERROR_TYPE_ACTION,
--
1.8.3.1
