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dpdk/lib/ethdev/ethdev_vdev.h

@@ -0,0 +1,63 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017 Brocade Communications Systems, Inc.
+ *   Author: Jan Blunck <jblunck@infradead.org>
+ */
+
+#ifndef _RTE_ETHDEV_VDEV_H_
+#define _RTE_ETHDEV_VDEV_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rte_config.h>
+#include <rte_malloc.h>
+#include <bus_vdev_driver.h>
+#include <ethdev_driver.h>
+
+/**
+ * @internal
+ * Allocates a new ethdev slot for an Ethernet device and returns the pointer
+ * to that slot for the driver to use.
+ *
+ * @param dev
+ *	Pointer to virtual device
+ *
+ * @param private_data_size
+ *	Size of private data structure
+ *
+ * @return
+ *	A pointer to a rte_eth_dev or NULL if allocation failed.
+ */
+static inline struct rte_eth_dev *
+rte_eth_vdev_allocate(struct rte_vdev_device *dev, size_t private_data_size)
+{
+	struct rte_eth_dev *eth_dev;
+	const char *name = rte_vdev_device_name(dev);
+
+	eth_dev = rte_eth_dev_allocate(name);
+	if (!eth_dev)
+		return NULL;
+
+	if (private_data_size) {
+		eth_dev->data->dev_private = rte_zmalloc_socket(name,
+			private_data_size, RTE_CACHE_LINE_SIZE,
+			dev->device.numa_node);
+		if (!eth_dev->data->dev_private) {
+			rte_eth_dev_release_port(eth_dev);
+			return NULL;
+		}
+	}
+
+	eth_dev->device = &dev->device;
+	eth_dev->intr_handle = NULL;
+
+	eth_dev->data->numa_node = dev->device.numa_node;
+	return eth_dev;
+}
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_ETHDEV_VDEV_H_ */