1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/bus/vdev/vdev_params.c b/drivers/bus/vdev/vdev_params.c
new file mode 100644
index 00000000..6f74704d
--- /dev/null
+++ b/drivers/bus/vdev/vdev_params.c
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2018 Gaëtan Rivet
+ */
+
+#include <string.h>
+
+#include <rte_dev.h>
+#include <rte_bus.h>
+#include <rte_kvargs.h>
+#include <rte_errno.h>
+
+#include "vdev_logs.h"
+#include "vdev_private.h"
+
+enum vdev_params {
+	RTE_VDEV_PARAM_NAME,
+	RTE_VDEV_PARAM_MAX,
+};
+
+static const char * const vdev_params_keys[] = {
+	[RTE_VDEV_PARAM_NAME] = "name",
+	[RTE_VDEV_PARAM_MAX] = NULL,
+};
+
+static int
+vdev_dev_match(const struct rte_device *dev,
+	       const void *_kvlist)
+{
+	int ret;
+	const struct rte_kvargs *kvlist = _kvlist;
+	char *name;
+
+	/* cannot pass const dev->name to rte_kvargs_process() */
+	name = strdup(dev->name);
+	if (name == NULL)
+		return -1;
+	ret = rte_kvargs_process(kvlist,
+		vdev_params_keys[RTE_VDEV_PARAM_NAME],
+		rte_kvargs_strcmp, name);
+	free(name);
+	if (ret != 0)
+		return -1;
+
+	return 0;
+}
+
+void *
+rte_vdev_dev_iterate(const void *start,
+		     const char *str,
+		     const struct rte_dev_iterator *it __rte_unused)
+{
+	struct rte_kvargs *kvargs = NULL;
+	struct rte_device *dev;
+
+	if (str != NULL) {
+		kvargs = rte_kvargs_parse(str, vdev_params_keys);
+		if (kvargs == NULL) {
+			VDEV_LOG(ERR, "cannot parse argument list\n");
+			rte_errno = EINVAL;
+			return NULL;
+		}
+	}
+	dev = rte_vdev_find_device(start, vdev_dev_match, kvargs);
+	rte_kvargs_free(kvargs);
+	return dev;
+}