DESC_SIZE
size = (DESC_SIZE * MAXFRAGS) + CTX_MAXLENGTH;
reqp->dr_offset += DESC_SIZE * n_chain;
reqp->dr_offset += DESC_SIZE * n_chain;
n_chain * DESC_SIZE, kaddr, reqp->dr_chain_out_dmah,
chain_paddr += DESC_SIZE;
chain_kaddr += DESC_SIZE;
reqp->dr_ctx_paddr + reqp->dr_offset + DESC_SIZE);
kaddr = reqp->dr_ctx_kaddr + reqp->dr_offset + DESC_SIZE;
return (ddi_get32(dma_p->acc_hdl, addr + index*DESC_SIZE + offset));
ddi_put32(dma_p->acc_hdl, addr + index*DESC_SIZE + offset, value);
#define MCR_SIZE (4 + MAXREQSPERMCR * ((2 * DESC_SIZE) + 8))