#include <inttypes.h>
#include <sys/queue.h>
+#include <rte_bus.h>
#include <rte_dev.h>
#include <rte_devargs.h>
#include <rte_debug.h>
#include "eal_private.h"
+static int cmp_detached_dev_name(const struct rte_device *dev,
+ const void *_name)
+{
+ const char *name = _name;
+
+ /* skip attached devices */
+ if (dev->driver != NULL)
+ return 1;
+
+ return strcmp(dev->name, name);
+}
+
+static int cmp_dev_name(const struct rte_device *dev, const void *_name)
+{
+ const char *name = _name;
+
+ return strcmp(dev->name, name);
+}
+
int rte_eal_dev_attach(const char *name, const char *devargs)
{
struct rte_pci_addr addr;
RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n", name);
return -EINVAL;
}
+
+int rte_eal_hotplug_add(const char *busname, const char *devname,
+ const char *devargs)
+{
+ struct rte_bus *bus;
+ struct rte_device *dev;
+ int ret;
+
+ bus = rte_bus_find_by_name(busname);
+ if (bus == NULL) {
+ RTE_LOG(ERR, EAL, "Cannot find bus (%s)\n", busname);
+ return -ENOENT;
+ }
+
+ if (bus->plug == NULL) {
+ RTE_LOG(ERR, EAL, "Function plug not supported by bus (%s)\n",
+ bus->name);
+ return -ENOTSUP;
+ }
+
+ ret = bus->scan();
+ if (ret)
+ return ret;
+
+ dev = bus->find_device(NULL, cmp_detached_dev_name, devname);
+ if (dev == NULL) {
+ RTE_LOG(ERR, EAL, "Cannot find unplugged device (%s)\n",
+ devname);
+ return -EINVAL;
+ }
+
+ ret = bus->plug(dev, devargs);
+ if (ret)
+ RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n",
+ dev->name);
+ return ret;
+}
+
+int rte_eal_hotplug_remove(const char *busname, const char *devname)
+{
+ struct rte_bus *bus;
+ struct rte_device *dev;
+ int ret;
+
+ bus = rte_bus_find_by_name(busname);
+ if (bus == NULL) {
+ RTE_LOG(ERR, EAL, "Cannot find bus (%s)\n", busname);
+ return -ENOENT;
+ }
+
+ if (bus->unplug == NULL) {
+ RTE_LOG(ERR, EAL, "Function unplug not supported by bus (%s)\n",
+ bus->name);
+ return -ENOTSUP;
+ }
+
+ dev = bus->find_device(NULL, cmp_dev_name, devname);
+ if (dev == NULL) {
+ RTE_LOG(ERR, EAL, "Cannot find plugged device (%s)\n", devname);
+ return -EINVAL;
+ }
+
+ ret = bus->unplug(dev);
+ if (ret)
+ RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n",
+ dev->name);
+ return ret;
+}