New upstream version 18.08

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

diff --git a/drivers/net/softnic/rte_eth_softnic_swq.c b/drivers/net/softnic/rte_eth_softnic_swq.c
new file mode 100644 (file)
index 0000000..2083d0a
--- /dev/null
+++ b/drivers/net/softnic/rte_eth_softnic_swq.c
@@ -0,0 +1,114 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <rte_string_fns.h>
+#include <rte_tailq.h>
+
+#include "rte_eth_softnic_internals.h"
+
+int
+softnic_swq_init(struct pmd_internals *p)
+{
+       TAILQ_INIT(&p->swq_list);
+
+       return 0;
+}
+
+void
+softnic_swq_free(struct pmd_internals *p)
+{
+       for ( ; ; ) {
+               struct softnic_swq *swq;
+
+               swq = TAILQ_FIRST(&p->swq_list);
+               if (swq == NULL)
+                       break;
+
+               TAILQ_REMOVE(&p->swq_list, swq, node);
+               rte_ring_free(swq->r);
+               free(swq);
+       }
+}
+
+void
+softnic_softnic_swq_free_keep_rxq_txq(struct pmd_internals *p)
+{
+       struct softnic_swq *swq, *tswq;
+
+       TAILQ_FOREACH_SAFE(swq, &p->swq_list, node, tswq) {
+               if ((strncmp(swq->name, "RXQ", strlen("RXQ")) == 0) ||
+                       (strncmp(swq->name, "TXQ", strlen("TXQ")) == 0))
+                       continue;
+
+               TAILQ_REMOVE(&p->swq_list, swq, node);
+               rte_ring_free(swq->r);
+               free(swq);
+       }
+}
+
+struct softnic_swq *
+softnic_swq_find(struct pmd_internals *p,
+       const char *name)
+{
+       struct softnic_swq *swq;
+
+       if (name == NULL)
+               return NULL;
+
+       TAILQ_FOREACH(swq, &p->swq_list, node)
+               if (strcmp(swq->name, name) == 0)
+                       return swq;
+
+       return NULL;
+}
+
+struct softnic_swq *
+softnic_swq_create(struct pmd_internals *p,
+       const char *name,
+       struct softnic_swq_params *params)
+{
+       char ring_name[NAME_SIZE];
+       struct softnic_swq *swq;
+       struct rte_ring *r;
+       unsigned int flags = RING_F_SP_ENQ | RING_F_SC_DEQ;
+
+       /* Check input params */
+       if (name == NULL ||
+               softnic_swq_find(p, name) ||
+               params == NULL ||
+               params->size == 0)
+               return NULL;
+
+       /* Resource create */
+       snprintf(ring_name, sizeof(ring_name), "%s_%s",
+               p->params.name,
+               name);
+
+       r = rte_ring_create(ring_name,
+               params->size,
+               p->params.cpu_id,
+               flags);
+
+       if (r == NULL)
+               return NULL;
+
+       /* Node allocation */
+       swq = calloc(1, sizeof(struct softnic_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(&p->swq_list, swq, node);
+
+       return swq;
+}