vfdi_req
struct vfdi_req *req = vf->buf.addr;
struct vfdi_req *req = vf->buf.addr;
struct vfdi_req *req = vf->buf.addr;
struct vfdi_req *req = vf->buf.addr;
struct vfdi_req *req = vf->buf.addr;
offsetof(struct vfdi_req, u.set_status_page.peer_page_addr[0]))
struct vfdi_req *req = vf->buf.addr;
copy[0].to_addr = vf->req_addr + offsetof(struct vfdi_req, rc);
copy[1].to_addr = vf->req_addr + offsetof(struct vfdi_req, op);