> This looks wrong... > > The SG offset should not be taken into account in the address > translation vector that is given to the HW. The sg_offset needs to > be accounted in the mr->iova: > > mr->iova = sg_dma_address(&sgl[0]) + sg_offset; > > I think the page mappings should stay as the are. I looked at this in a bit more detail, and I think we need both. For PAGE_SIZE or smaller SG entries you're correct, and we don't need the offset for dma_addr. But it doesn't harm either. But for lager SG entries we need it to calculate the correct base address. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
