-int
-libcfs_nal_cmd_register(int nal, nal_cmd_handler_fn *handler, void *private)
-{
- int rc = 0;
-
- CDEBUG(D_IOCTL, "Register NAL %d, handler: %p\n", nal, handler);
-
- if (nal > 0 && nal <= NAL_MAX_NR) {
- down(&nal_cmd_sem);
- if (nal_cmd[nal].nch_handler != NULL)
- rc = -EBUSY;
- else {
- nal_cmd[nal].nch_handler = handler;
- nal_cmd[nal].nch_private = private;
- }
- up(&nal_cmd_sem);
- }
- return rc;
-}
-EXPORT_SYMBOL(libcfs_nal_cmd_register);
-
-void
-libcfs_nal_cmd_unregister(int nal)
-{
- CDEBUG(D_IOCTL, "Unregister NAL %d\n", nal);
-
- LASSERT(nal > 0 && nal <= NAL_MAX_NR);
- LASSERT(nal_cmd[nal].nch_handler != NULL);
-
- down(&nal_cmd_sem);
- nal_cmd[nal].nch_handler = NULL;
- nal_cmd[nal].nch_private = NULL;
- up(&nal_cmd_sem);
-}
-EXPORT_SYMBOL(libcfs_nal_cmd_unregister);
-
-int
-libcfs_nal_cmd(struct portals_cfg *pcfg)
-{
- __u32 nal = pcfg->pcfg_nal;
- int rc = -EINVAL;
- ENTRY;
-
- down(&nal_cmd_sem);
- if (nal > 0 && nal <= NAL_MAX_NR &&
- nal_cmd[nal].nch_handler != NULL) {
- CDEBUG(D_IOCTL, "calling handler nal: %d, cmd: %d\n", nal,
- pcfg->pcfg_command);
- rc = nal_cmd[nal].nch_handler(pcfg, nal_cmd[nal].nch_private);
- }
- up(&nal_cmd_sem);
-
- RETURN(rc);
-}
-EXPORT_SYMBOL(libcfs_nal_cmd);
-