BFI_MSGQ_CMD_ENTRY_SIZE
dst += (cmdq->producer_index * BFI_MSGQ_CMD_ENTRY_SIZE);
to_copy = (len < BFI_MSGQ_CMD_ENTRY_SIZE) ?
len : BFI_MSGQ_CMD_ENTRY_SIZE;
src += BFI_MSGQ_CMD_ENTRY_SIZE;
dst += (cmdq->producer_index * BFI_MSGQ_CMD_ENTRY_SIZE);
(BFI_MSGQ_CMD_ENTRY_SIZE * BFA_MSGQ_CMDQ_NUM_ENTRY)
(((_size) + BFI_MSGQ_CMD_ENTRY_SIZE - 1) / BFI_MSGQ_CMD_ENTRY_SIZE)