doc: add Meson coding style to contributors guide

[dpdk.git] / lib / librte_table / rte_table_stub.c

diff --git a/lib/librte_table/rte_table_stub.c b/lib/librte_table/rte_table_stub.c
index 876b7e4..9ce7be9 100644 (file)
--- a/lib/librte_table/rte_table_stub.c
+++ b/lib/librte_table/rte_table_stub.c
@@ -1,46 +1,51 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
  */
 
+#include <string.h>
+
 #include <rte_mbuf.h>
+#include <rte_malloc.h>
 
 #include "rte_table_stub.h"
 
+#ifdef RTE_TABLE_STATS_COLLECT
+
+#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_stub {
+       struct rte_table_stats stats;
+};
+
 static void *
 rte_table_stub_create(__rte_unused void *params,
                __rte_unused int socket_id,
                __rte_unused uint32_t entry_size)
 {
-       return (void *) 1;
+       struct rte_table_stub *stub;
+       uint32_t size;
+
+       size = sizeof(struct rte_table_stub);
+       stub = rte_zmalloc_socket("TABLE", size, RTE_CACHE_LINE_SIZE,
+               socket_id);
+       if (stub == NULL) {
+               RTE_LOG(ERR, TABLE,
+                       "%s: Cannot allocate %u bytes for stub table\n",
+                       __func__, size);
+               return NULL;
+       }
+
+       return stub;
 }
 
 static int
@@ -51,7 +56,26 @@ rte_table_stub_lookup(
        uint64_t *lookup_hit_mask,
        __rte_unused void **entries)
 {
+       __rte_unused struct rte_table_stub *stub = (struct rte_table_stub *) table;
+       __rte_unused uint32_t n_pkts_in = __builtin_popcountll(pkts_mask);
+
+       RTE_TABLE_LPM_STATS_PKTS_IN_ADD(stub, n_pkts_in);
        *lookup_hit_mask = 0;
+       RTE_TABLE_LPM_STATS_PKTS_LOOKUP_MISS(stub, n_pkts_in);
+
+       return 0;
+}
+
+static int
+rte_table_stub_stats_read(void *table, struct rte_table_stats *stats, int clear)
+{
+       struct rte_table_stub *t = table;
+
+       if (stats != NULL)
+               memcpy(stats, &t->stats, sizeof(t->stats));
+
+       if (clear)
+               memset(&t->stats, 0, sizeof(t->stats));
 
        return 0;
 }
@@ -61,5 +85,8 @@ struct rte_table_ops rte_table_stub_ops = {
        .f_free = NULL,
        .f_add = NULL,
        .f_delete = NULL,
+       .f_add_bulk = NULL,
+       .f_delete_bulk = NULL,
        .f_lookup = rte_table_stub_lookup,
+       .f_stats = rte_table_stub_stats_read,
 };