ARCMSR_XOR_SEG_SIZE
if ((u_int32_t)segs->ds_len != ARCMSR_XOR_SEG_SIZE) {
pRamBuf->hrbSize = ARCMSR_XOR_SEG_SIZE * nseg;
/*maxsize*/ (ARCMSR_XOR_SEG_SIZE * acb->xor_mega),
/*maxsegsz*/ ARCMSR_XOR_SEG_SIZE,
rc = bus_dmamap_load(acb->xor_dmat, acb->xor_dmamap, acb->xorptr, (ARCMSR_XOR_SEG_SIZE * acb->xor_mega), arcmsr_map_xor_sg, acb, /*flags*/0);