From: Maciej Gajdzica <maciejx.t.gajdz...@intel.com>

Added common data structures for port statistics.

Signed-off-by: Maciej Gajdzica <maciejx.t.gajdzica at intel.com>
---
 lib/librte_port/rte_port.h |   60 ++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 55 insertions(+), 5 deletions(-)

diff --git a/lib/librte_port/rte_port.h b/lib/librte_port/rte_port.h
index d84e5a1..ab433e5 100644
--- a/lib/librte_port/rte_port.h
+++ b/lib/librte_port/rte_port.h
@@ -81,6 +81,12 @@ extern "C" {
 Cannot be changed. */
 #define RTE_PORT_IN_BURST_SIZE_MAX                         64

+/** Input port statistics */
+struct rte_port_in_stats {
+       uint64_t n_pkts_in;
+       uint64_t n_pkts_drop;
+};
+
 /**
  * Input port create
  *
@@ -120,17 +126,42 @@ typedef int (*rte_port_in_op_rx)(
        struct rte_mbuf **pkts,
        uint32_t n_pkts);

+/**
+ * Input port stats get
+ *
+ * @param port
+ *   Handle to output port instance
+ * @param stats
+ *   Handle to port_in stats struct to copy data
+ * @param clear
+ *   Flag indicating that stats should be cleared after read
+ *
+ * @return
+ *   Error code or 0 on success.
+ */
+typedef int (*rte_port_in_op_stats_read)(
+               void *port,
+               struct rte_port_in_stats *stats,
+               int clear);
+
 /** Input port interface defining the input port operation */
 struct rte_port_in_ops {
        rte_port_in_op_create f_create; /**< Create */
        rte_port_in_op_free f_free;     /**< Free */
        rte_port_in_op_rx f_rx;         /**< Packet RX (packet burst) */
+       rte_port_in_op_stats_read f_stats;      /**< Stats */
 };

 /*
  * Port OUT
  *
  */
+/** Output port statistics */
+struct rte_port_out_stats {
+       uint64_t n_pkts_in;
+       uint64_t n_pkts_drop;
+};
+
 /**
  * Output port create
  *
@@ -197,13 +228,32 @@ typedef int (*rte_port_out_op_tx_bulk)(
  */
 typedef int (*rte_port_out_op_flush)(void *port);

+/**
+ * Output port stats read
+ *
+ * @param port
+ *   Handle to output port instance
+ * @param stats
+ *   Handle to port_out stats struct to copy data
+ * @param clear
+ *   Flag indicating that stats should be cleared after read
+ *
+ * @return
+ *   Error code or 0 on success.
+ */
+typedef int (*rte_port_out_op_stats_read)(
+               void *port,
+               struct rte_port_out_stats *stats,
+               int clear);
+
 /** Output port interface defining the output port operation */
 struct rte_port_out_ops {
-       rte_port_out_op_create f_create;   /**< Create */
-       rte_port_out_op_free f_free;       /**< Free */
-       rte_port_out_op_tx f_tx;           /**< Packet TX (single packet) */
-       rte_port_out_op_tx_bulk f_tx_bulk; /**< Packet TX (packet burst) */
-       rte_port_out_op_flush f_flush;     /**< Flush */
+       rte_port_out_op_create f_create;                /**< Create */
+       rte_port_out_op_free f_free;                    /**< Free */
+       rte_port_out_op_tx f_tx;                                /**< Packet TX 
(single packet) */
+       rte_port_out_op_tx_bulk f_tx_bulk;              /**< Packet TX (packet 
burst) */
+       rte_port_out_op_flush f_flush;                  /**< Flush */
+       rte_port_out_op_stats_read f_stats;     /**< Stats */
 };

 #ifdef __cplusplus
-- 
1.7.9.5

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