[PATCH v2 03/22] net/softnic: add link object

[Jasvinder Singh <jasvinder.singh@intel.com>]

Add link object implementation to the softnic.

Signed-off-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.com>
---
 drivers/net/softnic/Makefile                    |  1 +
 drivers/net/softnic/rte_eth_softnic.c           |  4 +
 drivers/net/softnic/rte_eth_softnic_internals.h | 37 ++++++++++
 drivers/net/softnic/rte_eth_softnic_link.c      | 98 +++++++++++++++++++++++++
 4 files changed, 140 insertions(+)
 create mode 100644 drivers/net/softnic/rte_eth_softnic_link.c

diff --git a/drivers/net/softnic/Makefile b/drivers/net/softnic/Makefile
index d8e62bf..59711ec 100644
--- a/drivers/net/softnic/Makefile
+++ b/drivers/net/softnic/Makefile
@@ -23,6 +23,7 @@ LIBABIVER := 1
 #
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_SOFTNIC) += rte_eth_softnic.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_SOFTNIC) += rte_eth_softnic_swq.c
+SRCS-$(CONFIG_RTE_LIBRTE_PMD_SOFTNIC) += rte_eth_softnic_link.c
 SRCS-$(CONFIG_RTE_LIBRTE_PMD_SOFTNIC) += rte_eth_softnic_tm.c
 
 #
diff --git a/drivers/net/softnic/rte_eth_softnic.c b/drivers/net/softnic/rte_eth_softnic.c
index e95b2ba..e6e30bd 100644
--- a/drivers/net/softnic/rte_eth_softnic.c
+++ b/drivers/net/softnic/rte_eth_softnic.c
@@ -223,6 +223,8 @@ pmd_init(struct pmd_params *params)
 
 	/* Resources */
 	swq_init(p);
+	link_init(p);
+
 	return p;
 }
 
@@ -232,7 +234,9 @@ pmd_free(struct pmd_internals *p)
 	if (p == NULL)
 		return;
 
+	link_free(p);
 	swq_free(p);
+
 	rte_free(p);
 }
 
diff --git a/drivers/net/softnic/rte_eth_softnic_internals.h b/drivers/net/softnic/rte_eth_softnic_internals.h
index ee6283b..c463f8f 100644
--- a/drivers/net/softnic/rte_eth_softnic_internals.h
+++ b/drivers/net/softnic/rte_eth_softnic_internals.h
@@ -69,6 +69,24 @@ struct swq {
 TAILQ_HEAD(swq_list, swq);
 
 /**
+ * LINK
+ */
+struct link_params {
+	const char *dev_name;
+	uint16_t port_id; /**< Valid only when *dev_name* is NULL. */
+};
+
+struct link {
+	TAILQ_ENTRY(link) node;
+	char name[NAME_SIZE];
+	uint16_t port_id;
+	uint32_t n_rxq;
+	uint32_t n_txq;
+};
+
+TAILQ_HEAD(link_list, link);
+
+/**
  * Traffic Management (TM) Internals
  */
 
@@ -193,6 +211,7 @@ struct pmd_internals {
 	} soft;
 
 	struct swq_list swq_list;
+	struct link_list link_list;
 };
 
 /**
@@ -214,6 +233,24 @@ swq_create(struct pmd_internals *p,
 	struct swq_params *params);
 
 /**
+ * LINK
+ */
+int
+link_init(struct pmd_internals *p);
+
+void
+link_free(struct pmd_internals *p);
+
+struct link *
+link_find(struct pmd_internals *p,
+	const char *name);
+
+struct link *
+link_create(struct pmd_internals *p,
+	const char *name,
+	struct link_params *params);
+
+/**
  * Traffic Management (TM) Operation
  */
 extern const struct rte_tm_ops pmd_tm_ops;
diff --git a/drivers/net/softnic/rte_eth_softnic_link.c b/drivers/net/softnic/rte_eth_softnic_link.c
new file mode 100644
index 0000000..709344c
--- /dev/null
+++ b/drivers/net/softnic/rte_eth_softnic_link.c
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2018 Intel Corporation
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include <rte_ethdev.h>
+#include <rte_string_fns.h>
+
+#include "rte_eth_softnic_internals.h"
+
+int
+link_init(struct pmd_internals *p)
+{
+	TAILQ_INIT(&p->link_list);
+
+	return 0;
+}
+
+void
+link_free(struct pmd_internals *p)
+{
+	for ( ; ; ) {
+		struct link *link;
+
+		link = TAILQ_FIRST(&p->link_list);
+		if (link == NULL)
+			break;
+
+		TAILQ_REMOVE(&p->link_list, link, node);
+		free(link);
+	}
+}
+
+struct link *
+link_find(struct pmd_internals *p,
+	const char *name)
+{
+	struct link *link;
+
+	if (name == NULL)
+		return NULL;
+
+	TAILQ_FOREACH(link, &p->link_list, node)
+		if (strcmp(link->name, name) == 0)
+			return link;
+
+	return NULL;
+}
+
+struct link *
+link_create(struct pmd_internals *p,
+	const char *name,
+	struct link_params *params)
+{
+	struct rte_eth_dev_info port_info;
+	struct link *link;
+	uint16_t port_id;
+
+	/* Check input params */
+	if (name == NULL ||
+		link_find(p, name) ||
+		params == NULL)
+		return NULL;
+
+	port_id = params->port_id;
+	if (params->dev_name) {
+		int status;
+
+		status = rte_eth_dev_get_port_by_name(params->dev_name,
+			&port_id);
+
+		if (status)
+			return NULL;
+	} else {
+		if (!rte_eth_dev_is_valid_port(port_id))
+			return NULL;
+	}
+
+	rte_eth_dev_info_get(port_id, &port_info);
+
+	/* Node allocation */
+	link = calloc(1, sizeof(struct link));
+	if (link == NULL)
+		return NULL;
+
+	/* Node fill in */
+	strlcpy(link->name, name, sizeof(link->name));
+	link->port_id = port_id;
+	link->n_rxq = port_info.nb_rx_queues;
+	link->n_txq = port_info.nb_tx_queues;
+
+	/* Node add to list */
+	TAILQ_INSERT_TAIL(&p->link_list, link, node);
+
+	return link;
+}
-- 
2.9.3