SRB_SIZE
CHIP_REG_WRITE32(HBE_MessageUnit, 0, msgcode_rwbuffer[4], SRB_SIZE);
acb->msgcode_rwbuffer[4] = SRB_SIZE;
srb_phyaddr = srb_phyaddr + SRB_SIZE;
srb_tmp = (struct CommandControlBlock *)((unsigned long)srb_tmp + SRB_SIZE);
#define ARCMSR_SRBS_POOL_SIZE (SRB_SIZE * ARCMSR_MAX_FREESRB_NUM)