New upstream version 17.11-rc3

Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 153 insertions, 0 deletions

diff --git a/drivers/bus/vdev/rte_bus_vdev.h b/drivers/bus/vdev/rte_bus_vdev.h
new file mode 100644
index 00000000..41762b85
--- /dev/null
+++ b/drivers/bus/vdev/rte_bus_vdev.h
@@ -0,0 +1,153 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2016 RehiveTech. All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of RehiveTech nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef RTE_VDEV_H
+#define RTE_VDEV_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <sys/queue.h>
+#include <rte_dev.h>
+#include <rte_devargs.h>
+
+struct rte_vdev_device {
+	TAILQ_ENTRY(rte_vdev_device) next;      /**< Next attached vdev */
+	struct rte_device device;               /**< Inherit core device */
+};
+
+/**
+ * @internal
+ * Helper macro for drivers that need to convert to struct rte_vdev_device.
+ */
+#define RTE_DEV_TO_VDEV(ptr) \
+	container_of(ptr, struct rte_vdev_device, device)
+
+static inline const char *
+rte_vdev_device_name(const struct rte_vdev_device *dev)
+{
+	if (dev && dev->device.name)
+		return dev->device.name;
+	return NULL;
+}
+
+static inline const char *
+rte_vdev_device_args(const struct rte_vdev_device *dev)
+{
+	if (dev && dev->device.devargs)
+		return dev->device.devargs->args;
+	return "";
+}
+
+/** Double linked list of virtual device drivers. */
+TAILQ_HEAD(vdev_driver_list, rte_vdev_driver);
+
+/**
+ * Probe function called for each virtual device driver once.
+ */
+typedef int (rte_vdev_probe_t)(struct rte_vdev_device *dev);
+
+/**
+ * Remove function called for each virtual device driver once.
+ */
+typedef int (rte_vdev_remove_t)(struct rte_vdev_device *dev);
+
+/**
+ * A virtual device driver abstraction.
+ */
+struct rte_vdev_driver {
+	TAILQ_ENTRY(rte_vdev_driver) next; /**< Next in list. */
+	struct rte_driver driver;      /**< Inherited general driver. */
+	rte_vdev_probe_t *probe;       /**< Virtual device probe function. */
+	rte_vdev_remove_t *remove;     /**< Virtual device remove function. */
+};
+
+/**
+ * Register a virtual device driver.
+ *
+ * @param driver
+ *   A pointer to a rte_vdev_driver structure describing the driver
+ *   to be registered.
+ */
+void rte_vdev_register(struct rte_vdev_driver *driver);
+
+/**
+ * Unregister a virtual device driver.
+ *
+ * @param driver
+ *   A pointer to a rte_vdev_driver structure describing the driver
+ *   to be unregistered.
+ */
+void rte_vdev_unregister(struct rte_vdev_driver *driver);
+
+#define RTE_PMD_REGISTER_VDEV(nm, vdrv)\
+RTE_INIT(vdrvinitfn_ ##vdrv);\
+static const char *vdrvinit_ ## nm ## _alias;\
+static void vdrvinitfn_ ##vdrv(void)\
+{\
+	(vdrv).driver.name = RTE_STR(nm);\
+	(vdrv).driver.alias = vdrvinit_ ## nm ## _alias;\
+	rte_vdev_register(&vdrv);\
+} \
+RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
+
+#define RTE_PMD_REGISTER_ALIAS(nm, alias)\
+static const char *vdrvinit_ ## nm ## _alias = RTE_STR(alias)
+
+/**
+ * Initialize a driver specified by name.
+ *
+ * @param name
+ *   The pointer to a driver name to be initialized.
+ * @param args
+ *   The pointer to arguments used by driver initialization.
+ * @return
+ *  0 on success, negative on error
+ */
+int rte_vdev_init(const char *name, const char *args);
+
+/**
+ * Uninitalize a driver specified by name.
+ *
+ * @param name
+ *   The pointer to a driver name to be initialized.
+ * @return
+ *  0 on success, negative on error
+ */
+int rte_vdev_uninit(const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif