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From: Maciej Gajdzica <maciejx.t.gajdzica@intel.com>
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Date: Tue, 26 May 2015 14:39:47 +0200
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Subject: [dpdk-dev] [PATCH v3 10/10] table: added lpm table stats
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Added lpm table statistics.
Signed-off-by: Maciej Gajdzica <maciejx.t.gajdzica@intel.com>
---
lib/librte_table/rte_table_lpm.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/lib/librte_table/rte_table_lpm.c b/lib/librte_table/rte_table_lpm.c
index 64c684d..ab304ea 100644
--- a/lib/librte_table/rte_table_lpm.c
+++ b/lib/librte_table/rte_table_lpm.c
@@ -46,7 +46,23 @@
#define RTE_TABLE_LPM_MAX_NEXT_HOPS 256
+#if RTE_LOG_LEVEL == RTE_LOG_DEBUG
+
+#define RTE_TABLE_LPM_STATS_PKTS_IN_ADD(table, val) \
+ table->stats.n_pkts_in += val
+#define RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(table, val) \
+ table->stats.n_pkts_lookup_miss += val
+
+#else
+
+#define RTE_TABLE_LPM_STATS_PKTS_IN_ADD(table, val)
+#define RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(table, val)
+
+#endif
+
struct rte_table_lpm {
+ struct rte_table_stats stats;
+
/* Input parameters */
uint32_t entry_size;
uint32_t entry_unique_size;
@@ -313,6 +329,9 @@ rte_table_lpm_lookup(
uint64_t pkts_out_mask = 0;
uint32_t i;
+ __rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+ RTE_TABLE_LPM_STATS_PKTS_IN_ADD(lpm, n_pkts_in);
+
pkts_out_mask = 0;
for (i = 0; i < (uint32_t)(RTE_PORT_IN_BURST_SIZE_MAX -
__builtin_clzll(pkts_mask)); i++) {
@@ -335,6 +354,20 @@ rte_table_lpm_lookup(
}
*lookup_hit_mask = pkts_out_mask;
+ RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(lpm, n_pkts_in - __builtin_popcountll(pkts_out_mask));
+ return 0;
+}
+
+static int
+rte_table_lpm_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+ struct rte_table_lpm *t = (struct rte_table_lpm *) table;
+
+ if (stats != NULL)
+ memcpy(stats, &t->stats, sizeof(t->stats));
+
+ if (clear)
+ memset(&t->stats, 0, sizeof(t->stats));
return 0;
}
@@ -345,4 +378,5 @@ struct rte_table_ops rte_table_lpm_ops = {
.f_add = rte_table_lpm_entry_add,
.f_delete = rte_table_lpm_entry_delete,
.f_lookup = rte_table_lpm_lookup,
+ .f_stats = rte_table_lpm_stats_read,
};
--
1.7.9.5