};
/**
- * ACL Field defintion.
+ * ACL Field definition.
* Each field in the ACL rule has an associate definition.
* It defines the type of field, its size, its offset in the input buffer,
* the field index, and the input index.
uint32_t num_fields; /**< Number of field definitions. */
struct rte_acl_field_def defs[RTE_ACL_MAX_FIELDS];
/**< array of field definitions. */
+ size_t max_size;
+ /**< max memory limit for internal run-time structures. */
};
/**
* Pointer to ACL context structure that is used in future ACL
* operations, or NULL on error, with error code set in rte_errno.
* Possible rte_errno errors include:
- * - E_RTE_NO_TAILQ - no tailq list could be got for the ACL context list
* - EINVAL - invalid parameter passed to function
*/
struct rte_acl_ctx *
rte_acl_reset(struct rte_acl_ctx *ctx);
/**
- * Search for a matching ACL rule for each input data buffer.
+ * Available implementations of ACL classify.
+ */
+enum rte_acl_classify_alg {
+ RTE_ACL_CLASSIFY_DEFAULT = 0,
+ RTE_ACL_CLASSIFY_SCALAR = 1, /**< generic implementation. */
+ RTE_ACL_CLASSIFY_SSE = 2, /**< requires SSE4.1 support. */
+ RTE_ACL_CLASSIFY_AVX2 = 3, /**< requires AVX2 support. */
+ RTE_ACL_CLASSIFY_NUM /* should always be the last one. */
+};
+
+/**
+ * Perform search for a matching ACL rule for each input data buffer.
* Each input data buffer can have up to *categories* matches.
* That implies that results array should be big enough to hold
* (categories * num) elements.
* RTE_ACL_RESULTS_MULTIPLIER and can't be bigger than RTE_ACL_MAX_CATEGORIES.
* If more than one rule is applicable for given input buffer and
* given category, then rule with highest priority will be returned as a match.
- * Note, that it is a caller responsibility to ensure that input parameters
+ * Note, that it is a caller's responsibility to ensure that input parameters
* are valid and point to correct memory locations.
*
* @param ctx
* zero on successful completion.
* -EINVAL for incorrect arguments.
*/
-int
-rte_acl_classify(const struct rte_acl_ctx *ctx, const uint8_t **data,
- uint32_t *results, uint32_t num, uint32_t categories);
+extern int
+rte_acl_classify(const struct rte_acl_ctx *ctx,
+ const uint8_t **data,
+ uint32_t *results, uint32_t num,
+ uint32_t categories);
/**
- * Perform scalar search for a matching ACL rule for each input data buffer.
- * Note, that while the search itself will avoid explicit use of SSE/AVX
- * intrinsics, code for comparing matching results/priorities sill might use
- * vector intrinsics (for categories > 1).
+ * Perform search using specified algorithm for a matching ACL rule for
+ * each input data buffer.
* Each input data buffer can have up to *categories* matches.
* That implies that results array should be big enough to hold
* (categories * num) elements.
* @param categories
* Number of maximum possible matches for each input buffer, one possible
* match per category.
+ * @param alg
+ * Algorithm to be used for the search.
+ * It is the caller responsibility to ensure that the value refers to the
+ * existing algorithm, and that it could be run on the given CPU.
* @return
* zero on successful completion.
* -EINVAL for incorrect arguments.
*/
-int
-rte_acl_classify_scalar(const struct rte_acl_ctx *ctx, const uint8_t **data,
- uint32_t *results, uint32_t num, uint32_t categories);
+extern int
+rte_acl_classify_alg(const struct rte_acl_ctx *ctx,
+ const uint8_t **data,
+ uint32_t *results, uint32_t num,
+ uint32_t categories,
+ enum rte_acl_classify_alg alg);
+
+/*
+ * Override the default classifier function for a given ACL context.
+ * @param ctx
+ * ACL context to change classify function for.
+ * @param alg
+ * New default classify algorithm for given ACL context.
+ * It is the caller responsibility to ensure that the value refers to the
+ * existing algorithm, and that it could be run on the given CPU.
+ * @return
+ * - -EINVAL if the parameters are invalid.
+ * - Zero if operation completed successfully.
+ */
+extern int
+rte_acl_set_ctx_classify(struct rte_acl_ctx *ctx,
+ enum rte_acl_classify_alg alg);
/**
* Dump an ACL context structure to the console.