New upstream version 18.05

[deb_dpdk.git] / examples / ip_pipeline / mempool.c

diff --git a/examples/ip_pipeline/mempool.c b/examples/ip_pipeline/mempool.c
new file mode 100644 (file)
index 0000000..f5d2a7d
--- /dev/null
+++ b/examples/ip_pipeline/mempool.c
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <rte_mbuf.h>
+#include <rte_string_fns.h>
+
+#include "mempool.h"
+
+#define BUFFER_SIZE_MIN        (sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
+
+static struct mempool_list mempool_list;
+
+int
+mempool_init(void)
+{
+       TAILQ_INIT(&mempool_list);
+
+       return 0;
+}
+
+struct mempool *
+mempool_find(const char *name)
+{
+       struct mempool *mempool;
+
+       if (name == NULL)
+               return NULL;
+
+       TAILQ_FOREACH(mempool, &mempool_list, node)
+               if (strcmp(mempool->name, name) == 0)
+                       return mempool;
+
+       return NULL;
+}
+
+struct mempool *
+mempool_create(const char *name, struct mempool_params *params)
+{
+       struct mempool *mempool;
+       struct rte_mempool *m;
+
+       /* Check input params */
+       if ((name == NULL) ||
+               mempool_find(name) ||
+               (params == NULL) ||
+               (params->buffer_size < BUFFER_SIZE_MIN) ||
+               (params->pool_size == 0))
+               return NULL;
+
+       /* Resource create */
+       m = rte_pktmbuf_pool_create(
+               name,
+               params->pool_size,
+               params->cache_size,
+               0,
+               params->buffer_size - sizeof(struct rte_mbuf),
+               params->cpu_id);
+
+       if (m == NULL)
+               return NULL;
+
+       /* Node allocation */
+       mempool = calloc(1, sizeof(struct mempool));
+       if (mempool == NULL) {
+               rte_mempool_free(m);
+               return NULL;
+       }
+
+       /* Node fill in */
+       strlcpy(mempool->name, name, sizeof(mempool->name));
+       mempool->m = m;
+       mempool->buffer_size = params->buffer_size;
+
+       /* Node add to list */
+       TAILQ_INSERT_TAIL(&mempool_list, mempool, node);
+
+       return mempool;
+}