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 14a6b5d..0a87924 100644 (file)
--- a/drivers/net/sfc/sfc_flow.h
+++ b/drivers/net/sfc/sfc_flow.h
@@ -35,8 +35,15 @@ struct sfc_flow_rss {
        unsigned int    rss_tbl[EFX_RSS_TBL_SIZE];
 };
 
-/* Filter specification storage */
-struct sfc_flow_spec {
+/* Flow engines supported by the implementation */
+enum sfc_flow_spec_type {
+       SFC_FLOW_SPEC_FILTER = 0,
+
+       SFC_FLOW_SPEC_NTYPES
+};
+
+/* VNIC-specific flow specification */
+struct sfc_flow_spec_filter {
        /* partial specification from flow rule */
        efx_filter_spec_t template;
        /* fully elaborated hardware filters specifications */
@@ -49,9 +56,21 @@ struct sfc_flow_spec {
        struct sfc_flow_rss rss_conf;
 };
 
+/* Flow specification */
+struct sfc_flow_spec {
+       /* Flow specification type (engine-based) */
+       enum sfc_flow_spec_type type;
+
+       RTE_STD_C11
+       union {
+               /* Filter-based (VNIC level flows) specification */
+               struct sfc_flow_spec_filter filter;
+       };
+};
+
 /* PMD-specific definition of the opaque type from rte_flow.h */
 struct rte_flow {
-       struct sfc_flow_spec spec;      /* flow spec for hardware filter(s) */
+       struct sfc_flow_spec spec;      /* flow specification */
        TAILQ_ENTRY(rte_flow) entries;  /* flow list entries */
 };
 
@@ -59,6 +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);
@@ -66,6 +137,18 @@ void sfc_flow_fini(struct sfc_adapter *sa);
 int sfc_flow_start(struct sfc_adapter *sa);
 void sfc_flow_stop(struct sfc_adapter *sa);
 
+typedef int (sfc_flow_parse_cb_t)(struct rte_eth_dev *dev,
+                                 const struct rte_flow_item items[],
+                                 const struct rte_flow_action actions[],
+                                 struct rte_flow *flow,
+                                 struct rte_flow_error *error);
+
+typedef int (sfc_flow_insert_cb_t)(struct sfc_adapter *sa,
+                                  struct rte_flow *flow);
+
+typedef int (sfc_flow_remove_cb_t)(struct sfc_adapter *sa,
+                                  struct rte_flow *flow);
+
 #ifdef __cplusplus
 }
 #endif