Hi Ori,
<snip>
>+
>+/**
>+ * The generic *rte_regex_ops* structure to hold the RegEx attributes
>+ * for enqueue and dequeue operation.
>+ */
>+struct rte_regex_ops {
>+ /* W0 */
>+ uint16_t req_flags;
>+ /**< Request flags for the RegEx ops.
>+ * @see RTE_REGEX_OPS_REQ_*
>+ */
>+ uint16_t rsp_flags;
>+ /**< Response flags for the RegEx ops.
>+ * @see RTE_REGEX_OPS_RSP_*
>+ */
>+ uint16_t nb_actual_matches;
>+ /**< The total number of actual matches detected by the
>Regex device.*/
>+ uint16_t nb_matches;
>+ /**< The total number of matches returned by the RegEx
>device for this
>+ * scan. The size of *rte_regex_ops::matches* zero length array
>will be
>+ * this value.
>+ *
>+ * @see struct rte_regex_ops::matches, struct
>rte_regex_match
>+ */
>+
>+ /* W1 */
>+ struct rte_mbuf *mbuf; /**< source mbuf, to search in. */
While implementing pcre2 SW driver I came across an oddity where having mbuf
alone
wouldn’t suffice, we need to have scan start offset and scan length as
generally we would skip the
L2/L3 header.
>+
>+ /* W2 */
>+ uint16_t group_id0;
>+ /**< First group_id to match the rule against. At minimum one
>group
>+ * should be valid. Behaviour is undefined non of the groups are
>valid.
>+ *
>+ * @see RTE_REGEX_OPS_REQ_GROUP_ID0_VALID_F
>+ */
>+ uint16_t group_id1;
>+ /**< Second group_id to match the rule against.
>+ *
>+ * @see RTE_REGEX_OPS_REQ_GROUP_ID1_VALID_F
>+ */
>+ uint16_t group_id2;
>+ /**< Third group_id to match the rule against.
>+ *
>+ * @see RTE_REGEX_OPS_REQ_GROUP_ID2_VALID_F
>+ */
>+ uint16_t group_id3;
>+ /**< Forth group_id to match the rule against.
>+ *
>+ * @see RTE_REGEX_OPS_REQ_GROUP_ID3_VALID_F
>+ */
>+
>+ /* W3 */
>+ RTE_STD_C11
>+ union {
>+ uint64_t user_id;
>+ /**< Application specific opaque value. An application
>may use
>+ * this field to hold application specific value to share
>+ * between dequeue and enqueue operation.
>+ * Implementation should not modify this field.
>+ */
>+ void *user_ptr;
>+ /**< Pointer representation of *user_id* */
>+ };
>+
>+ /* W4 */
>+ struct rte_regex_match matches[];
>+ /**< Zero length array to hold the match tuples.
>+ * The struct rte_regex_ops::nb_matches value holds the
>number of
>+ * elements in this array.
>+ *
>+ * @see struct rte_regex_ops::nb_matches
>+ */
>+};
>+
Thanks,
Pavan.
