daio_mgr_set_imapnxt
hw->daio_mgr_set_imapnxt(mgr->ctrl_blk, entry->next);
int (*daio_mgr_set_imapnxt)(void *blk, unsigned int next);
.daio_mgr_set_imapnxt = daio_mgr_set_imapnxt,
.daio_mgr_set_imapnxt = daio_mgr_set_imapnxt,