* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <sys/queue.h>
#include <rte_devargs.h>
#include <rte_debug.h>
#include <rte_devargs.h>
+#include <rte_log.h>
#include "eal_private.h"
/** Global list of device drivers. */
static struct rte_driver_list dev_driver_list =
TAILQ_HEAD_INITIALIZER(dev_driver_list);
+/** Global list of device drivers. */
+static struct rte_device_list dev_device_list =
+ TAILQ_HEAD_INITIALIZER(dev_device_list);
/* register a driver */
void
TAILQ_REMOVE(&dev_driver_list, driver, next);
}
-int
-rte_eal_dev_init(uint8_t init_pri)
+void rte_eal_device_insert(struct rte_device *dev)
+{
+ RTE_VERIFY(dev->name);
+ RTE_VERIFY(dev->name[0] != '\0');
+
+ TAILQ_INSERT_TAIL(&dev_device_list, dev, next);
+}
+
+void rte_eal_device_remove(struct rte_device *dev)
{
- struct rte_devargs *devargs;
- struct rte_driver *driver;
-
- /*
- * Note that the dev_driver_list is populated here
- * from calls made to rte_eal_driver_register from constructor functions
- * embedded into PMD modules via the PMD_REGISTER_DRIVER macro
- */
-
- /* call the init function for each virtual device */
- TAILQ_FOREACH(devargs, &devargs_list, next) {
-
- if (devargs->type != RTE_DEVTYPE_VIRTUAL)
- continue;
-
- TAILQ_FOREACH(driver, &dev_driver_list, next) {
- /* RTE_DEVTYPE_VIRTUAL can only be a virtual or bonded device,
- * virtual devices are initialized pre PCI probing and bonded
- * device are post pci probing */
- if ((driver->type == PMD_VDEV && init_pri ==
- PMD_INIT_PRE_PCI_PROBE) ||
- (driver->type == PMD_BDEV && init_pri ==
- PMD_INIT_POST_PCI_PROBE)) {
-
- /* search a driver prefix in virtual device name */
- if (!strncmp(driver->name, devargs->virtual.drv_name,
- strlen(driver->name))) {
- printf("init (%u) %s\n", init_pri, devargs->virtual.drv_name);
- driver->init(devargs->virtual.drv_name,
- devargs->args);
- break;
- }
- }
- }
-
- /* If initializing pre PCI probe, then we don't expect a bonded driver
- * to be found */
- if (init_pri == PMD_INIT_PRE_PCI_PROBE &&
- strncmp(PMD_BOND_NAME, devargs->virtual.drv_name,
- strlen(PMD_BOND_NAME)) != 0) {
- if (driver == NULL) {
- rte_panic("no driver found for virtual device %s\n",
- devargs->virtual.drv_name);
- }
- } else if (init_pri == PMD_INIT_POST_PCI_PROBE &&
- strncmp(PMD_BOND_NAME, devargs->virtual.drv_name,
- strlen(PMD_BOND_NAME)) == 0) {
- if (driver == NULL) {
- rte_panic("no driver found for bonded device %s\n",
- devargs->virtual.drv_name);
- }
- }
+ TAILQ_REMOVE(&dev_device_list, dev, next);
+}
+
+int rte_eal_dev_attach(const char *name, const char *devargs)
+{
+ struct rte_pci_addr addr;
+
+ if (name == NULL || devargs == NULL) {
+ RTE_LOG(ERR, EAL, "Invalid device or arguments provided\n");
+ return -EINVAL;
}
- /* Once the vdevs are initialized, start calling all the pdev drivers */
- if (init_pri == PMD_INIT_PRE_PCI_PROBE) {
- TAILQ_FOREACH(driver, &dev_driver_list, next) {
- if (driver->type != PMD_PDEV)
- continue;
- /* PDEV drivers don't get passed any parameters */
- driver->init(NULL, NULL);
- }
+ if (eal_parse_pci_DomBDF(name, &addr) == 0) {
+ if (rte_eal_pci_probe_one(&addr) < 0)
+ goto err;
+
+ } else {
+ if (rte_eal_vdev_init(name, devargs))
+ goto err;
}
+
return 0;
+
+err:
+ RTE_LOG(ERR, EAL, "Driver cannot attach the device (%s)\n", name);
+ return -EINVAL;
+}
+
+int rte_eal_dev_detach(const char *name)
+{
+ struct rte_pci_addr addr;
+
+ if (name == NULL) {
+ RTE_LOG(ERR, EAL, "Invalid device provided.\n");
+ return -EINVAL;
+ }
+
+ if (eal_parse_pci_DomBDF(name, &addr) == 0) {
+ if (rte_eal_pci_detach(&addr) < 0)
+ goto err;
+ } else {
+ if (rte_eal_vdev_uninit(name))
+ goto err;
+ }
+ return 0;
+
+err:
+ RTE_LOG(ERR, EAL, "Driver cannot detach the device (%s)\n", name);
+ return -EINVAL;
}