New upstream version 18.08

[deb_dpdk.git] / drivers / net / softnic / rte_eth_softnic_mempool.c

diff --git a/drivers/net/softnic/rte_eth_softnic_mempool.c b/drivers/net/softnic/rte_eth_softnic_mempool.c
new file mode 100644 (file)
index 0000000..d5c569f
--- /dev/null
+++ b/drivers/net/softnic/rte_eth_softnic_mempool.c
@@ -0,0 +1,103 @@
+/* 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 "rte_eth_softnic_internals.h"
+
+#define BUFFER_SIZE_MIN        (sizeof(struct rte_mbuf) + RTE_PKTMBUF_HEADROOM)
+
+int
+softnic_mempool_init(struct pmd_internals *p)
+{
+       TAILQ_INIT(&p->mempool_list);
+
+       return 0;
+}
+
+void
+softnic_mempool_free(struct pmd_internals *p)
+{
+       for ( ; ; ) {
+               struct softnic_mempool *mempool;
+
+               mempool = TAILQ_FIRST(&p->mempool_list);
+               if (mempool == NULL)
+                       break;
+
+               TAILQ_REMOVE(&p->mempool_list, mempool, node);
+               rte_mempool_free(mempool->m);
+               free(mempool);
+       }
+}
+
+struct softnic_mempool *
+softnic_mempool_find(struct pmd_internals *p,
+       const char *name)
+{
+       struct softnic_mempool *mempool;
+
+       if (name == NULL)
+               return NULL;
+
+       TAILQ_FOREACH(mempool, &p->mempool_list, node)
+               if (strcmp(mempool->name, name) == 0)
+                       return mempool;
+
+       return NULL;
+}
+
+struct softnic_mempool *
+softnic_mempool_create(struct pmd_internals *p,
+       const char *name,
+       struct softnic_mempool_params *params)
+{
+       char mempool_name[NAME_SIZE];
+       struct softnic_mempool *mempool;
+       struct rte_mempool *m;
+
+       /* Check input params */
+       if (name == NULL ||
+               softnic_mempool_find(p, name) ||
+               params == NULL ||
+               params->buffer_size < BUFFER_SIZE_MIN ||
+               params->pool_size == 0)
+               return NULL;
+
+       /* Resource create */
+       snprintf(mempool_name, sizeof(mempool_name), "%s_%s",
+               p->params.name,
+               name);
+
+       m = rte_pktmbuf_pool_create(mempool_name,
+               params->pool_size,
+               params->cache_size,
+               0,
+               params->buffer_size - sizeof(struct rte_mbuf),
+               p->params.cpu_id);
+
+       if (m == NULL)
+               return NULL;
+
+       /* Node allocation */
+       mempool = calloc(1, sizeof(struct softnic_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(&p->mempool_list, mempool, node);
+
+       return mempool;
+}