From 6b3e017e5d25f15da73f7700f7f2ac553ef1a2e9 Mon Sep 17 00:00:00 2001
From: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Date: Thu, 8 Dec 2016 14:07:29 +0100
Subject: Imported Upstream version 16.11

Change-Id: I1944c65ddc88a9ad70f8c0eb6731552b84fbcb77
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
---
 lib/librte_eal/common/eal_common_vdev.c | 116 ++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 lib/librte_eal/common/eal_common_vdev.c

(limited to 'lib/librte_eal/common/eal_common_vdev.c')

diff --git a/lib/librte_eal/common/eal_common_vdev.c b/lib/librte_eal/common/eal_common_vdev.c
new file mode 100644
index 00000000..0ff2377d
--- /dev/null
+++ b/lib/librte_eal/common/eal_common_vdev.c
@@ -0,0 +1,116 @@
+/*-
+ *   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.
+ */
+
+#include <string.h>
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <sys/queue.h>
+
+#include <rte_vdev.h>
+#include <rte_common.h>
+
+struct vdev_driver_list vdev_driver_list =
+	TAILQ_HEAD_INITIALIZER(vdev_driver_list);
+
+/* register a driver */
+void
+rte_eal_vdrv_register(struct rte_vdev_driver *driver)
+{
+	TAILQ_INSERT_TAIL(&vdev_driver_list, driver, next);
+	rte_eal_driver_register(&driver->driver);
+}
+
+/* unregister a driver */
+void
+rte_eal_vdrv_unregister(struct rte_vdev_driver *driver)
+{
+	rte_eal_driver_unregister(&driver->driver);
+	TAILQ_REMOVE(&vdev_driver_list, driver, next);
+}
+
+int
+rte_eal_vdev_init(const char *name, const char *args)
+{
+	struct rte_vdev_driver *driver;
+
+	if (name == NULL)
+		return -EINVAL;
+
+	TAILQ_FOREACH(driver, &vdev_driver_list, next) {
+		/*
+		 * search a driver prefix in virtual device name.
+		 * For example, if the driver is pcap PMD, driver->name
+		 * will be "net_pcap", but "name" will be "net_pcapN".
+		 * So use strncmp to compare.
+		 */
+		if (!strncmp(driver->driver.name, name,
+			    strlen(driver->driver.name)))
+			return driver->probe(name, args);
+	}
+
+	/* Give new names precedence over aliases. */
+	TAILQ_FOREACH(driver, &vdev_driver_list, next) {
+		if (driver->driver.alias &&
+		    !strncmp(driver->driver.alias, name,
+			    strlen(driver->driver.alias)))
+			return driver->probe(name, args);
+	}
+
+	RTE_LOG(ERR, EAL, "no driver found for %s\n", name);
+	return -EINVAL;
+}
+
+int
+rte_eal_vdev_uninit(const char *name)
+{
+	struct rte_vdev_driver *driver;
+
+	if (name == NULL)
+		return -EINVAL;
+
+	TAILQ_FOREACH(driver, &vdev_driver_list, next) {
+		/*
+		 * search a driver prefix in virtual device name.
+		 * For example, if the driver is pcap PMD, driver->name
+		 * will be "net_pcap", but "name" will be "net_pcapN".
+		 * So use strncmp to compare.
+		 */
+		if (!strncmp(driver->driver.name, name,
+			     strlen(driver->driver.name)))
+			return driver->remove(name);
+	}
+
+	RTE_LOG(ERR, EAL, "no driver found for %s\n", name);
+	return -EINVAL;
+}
-- 
cgit 1.2.3-korg