[dpdk-dev] [PATCH v2 1/5] ethdev: define flex filter type and its structure

[Jingjing Wu <jingjing.wu@intel.com>]

This patch defines flex filter type RTE_ETH_FILTER_FLEXIBLE and its structure rte_eth_flex_filter.

Signed-off-by: Jingjing Wu <jingjing.wu@intel.com>
---
 lib/librte_ether/rte_eth_ctrl.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/lib/librte_ether/rte_eth_ctrl.h b/lib/librte_ether/rte_eth_ctrl.h
index 0ce241e..beacfa3 100644
--- a/lib/librte_ether/rte_eth_ctrl.h
+++ b/lib/librte_ether/rte_eth_ctrl.h
@@ -53,6 +53,7 @@ enum rte_filter_type {
 	RTE_ETH_FILTER_NONE = 0,
 	RTE_ETH_FILTER_MACVLAN,
 	RTE_ETH_FILTER_ETHERTYPE,
+	RTE_ETH_FILTER_FLEXIBLE,
 	RTE_ETH_FILTER_TUNNEL,
 	RTE_ETH_FILTER_FDIR,
 	RTE_ETH_FILTER_HASH,
@@ -116,6 +117,25 @@ struct rte_eth_ethertype_filter {
 	uint16_t queue;               /**< Queue assigned to when match*/
 };
 
+#define RTE_FLEX_FILTER_MAXLEN	128	/**< bytes to use in flex filter. */
+#define RTE_FLEX_FILTER_MASK_SIZE	\
+	(RTE_ALIGN(RTE_FLEX_FILTER_MAXLEN, CHAR_BIT) / CHAR_BIT)
+					/**< mask bytes in flex filter. */
+
+/**
+ *  A structure used to define the flex filter entry
+ *  to support RTE_ETH_FILTER_FLEXIBLE with RTE_ETH_FILTER_ADD,
+ *  RTE_ETH_FILTER_DELETE and RTE_ETH_FILTER_GET operations.
+ */
+struct rte_eth_flex_filter {
+	uint16_t len;
+	uint8_t bytes[RTE_FLEX_FILTER_MAXLEN];  /**< flex bytes in big endian.*/
+	uint8_t mask[RTE_FLEX_FILTER_MASK_SIZE];    /**< if mask bit is 1b, do
+					not compare corresponding byte. */
+	uint8_t priority;
+	uint16_t queue;       /**< Queue assigned to when match. */
+};
+
 /**
  * Tunneled type.
  */
-- 
1.9.3