net/sfc: generalise flow pattern item processing

[dpdk.git] / drivers / net / sfc / sfc_flow.h

diff --git a/drivers/net/sfc/sfc_flow.h b/drivers/net/sfc/sfc_flow.h
index 5d87212..0a87924 100644 (file)
--- a/drivers/net/sfc/sfc_flow.h
+++ b/drivers/net/sfc/sfc_flow.h
@@ -78,6 +78,58 @@ TAILQ_HEAD(sfc_flow_list, rte_flow);
 
 extern const struct rte_flow_ops sfc_flow_ops;
 
+enum sfc_flow_item_layers {
+       SFC_FLOW_ITEM_ANY_LAYER,
+       SFC_FLOW_ITEM_START_LAYER,
+       SFC_FLOW_ITEM_L2,
+       SFC_FLOW_ITEM_L3,
+       SFC_FLOW_ITEM_L4,
+};
+
+/* Flow parse context types */
+enum sfc_flow_parse_ctx_type {
+       SFC_FLOW_PARSE_CTX_FILTER = 0,
+
+       SFC_FLOW_PARSE_CTX_NTYPES
+};
+
+/* Flow parse context */
+struct sfc_flow_parse_ctx {
+       enum sfc_flow_parse_ctx_type type;
+
+       RTE_STD_C11
+       union {
+               /* Context pointer valid for filter-based (VNIC) flows */
+               efx_filter_spec_t *filter;
+       };
+};
+
+typedef int (sfc_flow_item_parse)(const struct rte_flow_item *item,
+                                 struct sfc_flow_parse_ctx *parse_ctx,
+                                 struct rte_flow_error *error);
+
+struct sfc_flow_item {
+       enum rte_flow_item_type type;           /* Type of item */
+       enum sfc_flow_item_layers layer;        /* Layer of item */
+       enum sfc_flow_item_layers prev_layer;   /* Previous layer of item */
+       enum sfc_flow_parse_ctx_type ctx_type;  /* Parse context type */
+       sfc_flow_item_parse *parse;             /* Parsing function */
+};
+
+int sfc_flow_parse_pattern(const struct sfc_flow_item *flow_items,
+                          unsigned int nb_flow_items,
+                          const struct rte_flow_item pattern[],
+                          struct sfc_flow_parse_ctx *parse_ctx,
+                          struct rte_flow_error *error);
+
+int sfc_flow_parse_init(const struct rte_flow_item *item,
+                       const void **spec_ptr,
+                       const void **mask_ptr,
+                       const void *supp_mask,
+                       const void *def_mask,
+                       unsigned int size,
+                       struct rte_flow_error *error);
+
 struct sfc_adapter;
 
 void sfc_flow_init(struct sfc_adapter *sa);