New upstream version 18.08

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

diff --git a/examples/ip_pipeline/swq.c b/examples/ip_pipeline/swq.c
new file mode 100644 (file)
index 0000000..7e54a1d
--- /dev/null
+++ b/examples/ip_pipeline/swq.c
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <rte_string_fns.h>
+
+#include "swq.h"
+
+static struct swq_list swq_list;
+
+int
+swq_init(void)
+{
+       TAILQ_INIT(&swq_list);
+
+       return 0;
+}
+
+struct swq *
+swq_find(const char *name)
+{
+       struct swq *swq;
+
+       if (name == NULL)
+               return NULL;
+
+       TAILQ_FOREACH(swq, &swq_list, node)
+               if (strcmp(swq->name, name) == 0)
+                       return swq;
+
+       return NULL;
+}
+
+struct swq *
+swq_create(const char *name, struct swq_params *params)
+{
+       struct swq *swq;
+       struct rte_ring *r;
+       unsigned int flags = RING_F_SP_ENQ | RING_F_SC_DEQ;
+
+       /* Check input params */
+       if ((name == NULL) ||
+               swq_find(name) ||
+               (params == NULL) ||
+               (params->size == 0))
+               return NULL;
+
+       /* Resource create */
+       r = rte_ring_create(
+               name,
+               params->size,
+               params->cpu_id,
+               flags);
+
+       if (r == NULL)
+               return NULL;
+
+       /* Node allocation */
+       swq = calloc(1, sizeof(struct swq));
+       if (swq == NULL) {
+               rte_ring_free(r);
+               return NULL;
+       }
+
+       /* Node fill in */
+       strlcpy(swq->name, name, sizeof(swq->name));
+       swq->r = r;
+
+       /* Node add to list */
+       TAILQ_INSERT_TAIL(&swq_list, swq, node);
+
+       return swq;
+}