mptsas_dma_alloc_state_t
mptsas_dma_alloc_state_t data_dma_state;
mptsas_dma_alloc_state_t dataout_dma_state;
bzero(&pBuffer->buffer_data, sizeof (mptsas_dma_alloc_state_t));
mptsas_dma_alloc(mptsas_t *mpt, mptsas_dma_alloc_state_t *dma_statep)
mptsas_dma_free(mptsas_dma_alloc_state_t *dma_statep)
int mptsas_dma_alloc(mptsas_t *mpt, mptsas_dma_alloc_state_t *dma_statep);
void mptsas_dma_free(mptsas_dma_alloc_state_t *dma_statep);
mptsas_dma_alloc_state_t buffer_data;