>
> Lorenzo Bianconi wrote:
> > Introduce xdp_frags_tsize field in skb_shared_info data structure
> > to store xdp_buff/xdp_frame truesize (xdp_frags_tsize will be used
> > in xdp multi-buff support). In order to not increase skb_shared_info
> > size we will use a hole due to skb_shared_info alignment.
> > Introduce xdp_frags_size field in skb_shared_info data structure
> > reusing gso_type field in order to store xdp_buff/xdp_frame paged size.
> > xdp_frags_size will be used in xdp multi-buff support.
> >
> > Signed-off-by: Lorenzo Bianconi <lorenzo@xxxxxxxxxx>
>
> I assume we can use xdp_frags_tsize for anything else above XDP later?
> Other than simple question looks OK to me.
yes, right as we did for gso_type/xdp_frags_size.
Regards,
Lorenzo
>
> Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>
>
> > ---
> > include/linux/skbuff.h | 6 +++++-
> > 1 file changed, 5 insertions(+), 1 deletion(-)
> >
> > diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
> > index 6bdb0db3e825..1abeba7ef82e 100644
> > --- a/include/linux/skbuff.h
> > +++ b/include/linux/skbuff.h
> > @@ -522,13 +522,17 @@ struct skb_shared_info {
> > unsigned short gso_segs;
> > struct sk_buff *frag_list;
> > struct skb_shared_hwtstamps hwtstamps;
> > - unsigned int gso_type;
> > + union {
> > + unsigned int gso_type;
> > + unsigned int xdp_frags_size;
> > + };
> > u32 tskey;
> >
> > /*
> > * Warning : all fields before dataref are cleared in __alloc_skb()
> > */
> > atomic_t dataref;
> > + unsigned int xdp_frags_tsize;
> >
> > /* Intermediate layers must ensure that destructor_arg
> > * remains valid until skb destructor */
> > --
> > 2.31.1
> >
>
>
