On Thu, Jun 03, 2021 at 03:37:14PM +0800, Weihang Li wrote: > + hr_qp->has_mmaped = true; > + pfn = context->uar.dwqe_page + pgoff; > + prot = pgprot_device(vma->vm_page_prot); Why doesn't this use pgprot_writecombine() ? Does the devce really need nGnRE not GRE? Jason
