New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 114 insertions, 0 deletions

diff --git a/drivers/net/softnic/rte_eth_softnic_swq.c b/drivers/net/softnic/rte_eth_softnic_swq.c
new file mode 100644
index 00000000..2083d0a9
--- /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;
+}