mbx_read_common_transrecv_data
struct mbx_read_common_transrecv_data *fwcmd;
if (oce_dma_alloc(sc, sizeof(struct mbx_read_common_transrecv_data),
fwcmd = OCE_DMAPTR(&dma, struct mbx_read_common_transrecv_data);
bzero(fwcmd, sizeof(struct mbx_read_common_transrecv_data));
sizeof(struct mbx_read_common_transrecv_data),
mbx.payload_length = sizeof(struct mbx_read_common_transrecv_data);