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-rw-r--r--drivers/bus/vdev/vdev_params.c66
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 Gaƫtan 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;
+}