IDA_QCB_MAX
if (ida->num_qcbs >= IDA_QCB_MAX)
ida->qcbs = kmalloc(IDA_QCB_MAX * sizeof(struct ida_qcb),
IDA_QCB_MAX * sizeof(struct ida_hardware_qcb),
ida->hwqcbs, IDA_QCB_MAX * sizeof(struct ida_hardware_qcb),
bzero(ida->hwqcbs, IDA_QCB_MAX * sizeof(struct ida_hardware_qcb));