nge_alloc_dma_mem
int nge_alloc_dma_mem(nge_t *ngep, size_t memsize,
err = nge_alloc_dma_mem(ngep, txbuffsize/ngep->nge_split,
err = nge_alloc_dma_mem(ngep, rxdescsize, &nge_desc_accattr,
err = nge_alloc_dma_mem(ngep, txdescsize, &nge_desc_accattr,
err = nge_alloc_dma_mem(ngep, (ngep->buf_size