io_command
uint32_t io_command; /* 0x030 w command register */
regs->io_command = CMD_RESET;
uint32_t io_command; /* Offset 12 */
r->io_command =
sc->sc_regs->io_command = UTURN_CMD_TLB_PURGE | iova;
u_int io_command; /* (WO) module commands (see below) */
io_command((iscsi_iocommand_parameters_t *) addr, l);