HBB_DOORBELL
phbbmu->hbb_doorbell = (struct HBB_DOORBELL *)acb->mem_base0;
phbbmu->drv2iop_doorbell = offsetof(struct HBB_DOORBELL, drv2iop_doorbell);
phbbmu->drv2iop_doorbell_mask = offsetof(struct HBB_DOORBELL, drv2iop_doorbell_mask);
phbbmu->iop2drv_doorbell = offsetof(struct HBB_DOORBELL, iop2drv_doorbell);
phbbmu->iop2drv_doorbell_mask = offsetof(struct HBB_DOORBELL, iop2drv_doorbell_mask);
struct HBB_DOORBELL *hbb_doorbell;