From: Andrey Vesnovaty <andr...@nvidia.com>
Attach SFT flow context to packet with SFT action.
Match on SFT flow context (attached to packet),
with SFT item.
Signed-off-by: Andrey Vesnovaty <andr...@nvidia.com>
---
lib/librte_ethdev/rte_flow.h | 75 ++++++++++++++++++++++++++++++++++++
1 file changed, 75 insertions(+)
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index da8bfa5489..7ca47cc87c 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -537,6 +537,14 @@ enum rte_flow_item_type {
*/
RTE_FLOW_ITEM_TYPE_ECPRI,
+ /**
+ * [META]
+ *
+ * Matches SFT context.
+ *
+ * See struct rte_flow_item_sft.
+ */
+ RTE_FLOW_ITEM_TYPE_SFT,
};
/**
@@ -1579,6 +1587,48 @@ static const struct rte_flow_item_ecpri
rte_flow_item_ecpri_mask = {
};
#endif
+/**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * RTE_FLOW_ITEM_TYPE_SFT
+ *
+ * Matches context of flow that wasw created by SFT.
+ *
+ * The structure describes SFT flow context.
+ * All the fields of the structure, except @p fid, should be considered as
+ * user defined.
+ * The @p fid assigned by RTE SFT & used as unique flow identifier.
+ * SFT context attached to packet by action ``SFT`` (see RTE_FLOW_ACTION_SFT),
+ * which sends the packet to the SFT module.
+ *
+ * SFT default context defined as context attached to packet when there is no
+ * entry for the flow in SFT. The @p state has application reserved value
+ * meaning that SFT context for the packet undefined since entry wasn't found
+ * in SFT. If state 'undefined' then @p zone should be valid othervice @p fid
+ * should be valid.
+ *
+ * Context considered virtual since the method of storing this info on packet
+ * is PMD/implementation specific & may involve mapping methods if there is
+ * 'not enough bits' to store entire contents of struct rte_flow_item_sft.
+ *
+ * Maximal value/size of each field depends on HW capabilities and considered
+ * as implementation specific.
+ */
+RTE_STD_C11
+struct rte_flow_item_sft {
+ union {
+ uint32_t fid; /**< SFT flow identifier. */
+ uint32_t zone; /**< Zone assigned to flow. */
+ };
+ uint32_t fid_valid:1; /**< The fid member is valid. */
+ uint32_t zone_valid:1; /**< The zone member is valid. */
+ uint32_t reserved:30; /**< Reserved. */
+ uint8_t state; /**< User defined flow state. */
+ uint8_t user_data_size; /**< user_data buffer size. */
+ uint8_t *user_data; /**< Arbitrary user data. */
+};
+
/**
* Matching pattern item definition.
*
@@ -2132,6 +2182,15 @@ enum rte_flow_action_type {
* see enum RTE_ETH_EVENT_FLOW_AGED
*/
RTE_FLOW_ACTION_TYPE_AGE,
+
+ /**
+ * RTE_FLOW_ACTION_TYPE_SFT
+ *
+ * Direct the packet to SFT module.
+ *
+ * See struct rte_flow_action_sft.
+ */
+ RTE_FLOW_ACTION_TYPE_SFT,
};
/**
@@ -2721,6 +2780,22 @@ rte_flow_dynf_metadata_set(struct rte_mbuf *m, uint32_t
v)
*RTE_FLOW_DYNF_METADATA(m) = v;
}
+/**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * RTE_FLOW_ACTION_TYPE_SFT
+ *
+ * Performs lookup by *zone* and 5-tuple in SFT.
+ * If entry is found the related SFT context will be attached otherwise,
+ * default SFT context will be attached.
+ *
+ * This action may result in termination of actions that following this action.
+ */
+struct rte_flow_action_sft {
+ uint32_t zone; /**< Zone for lookup in SFT */
+};
+
/*
* Definition of a single action.
*
--
2.25.1
