table: add array stats

Added statistics for array table.

Signed-off-by: Maciej Gajdzica <maciejx.t.gajdzica@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>

diff --git a/lib/librte_table/rte_table_array.c b/lib/librte_table/rte_table_array.c
index b00ca67..422f8c3 100644 (file)
--- a/lib/librte_table/rte_table_array.c
+++ b/lib/librte_table/rte_table_array.c
@@ -42,7 +42,23 @@
 
 #include "rte_table_array.h"
 
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#define RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(table, val) \
+       table->stats.n_pkts_in += val
+#define RTE_TABLE_ARRAY_STATS_PKTS_LOOKUP_MISS(table, val) \
+       table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_ARRAY_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
 struct rte_table_array {
+       struct rte_table_stats stats;
+
        /* Input parameters */
        uint32_t entry_size;
        uint32_t n_entries;
@@ -162,7 +178,8 @@ rte_table_array_lookup(
        void **entries)
 {
        struct rte_table_array *t = (struct rte_table_array *) table;
-
+       __rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+       RTE_TABLE_ARRAY_STATS_PKTS_IN_ADD(t, n_pkts_in);
        *lookup_hit_mask = pkts_mask;
 
        if ((pkts_mask & (pkts_mask + 1)) == 0) {
@@ -194,10 +211,25 @@ rte_table_array_lookup(
        return 0;
 }
 
+static int
+rte_table_array_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+       struct rte_table_array *array = (struct rte_table_array *) table;
+
+       if (stats != NULL)
+               memcpy(stats, &array->stats, sizeof(array->stats));
+
+       if (clear)
+               memset(&array->stats, 0, sizeof(array->stats));
+
+       return 0;
+}
+
 struct rte_table_ops rte_table_array_ops = {
        .f_create = rte_table_array_create,
        .f_free = rte_table_array_free,
        .f_add = rte_table_array_entry_add,
        .f_delete = NULL,
        .f_lookup = rte_table_array_lookup,
+       .f_stats = rte_table_array_stats_read,
 };