[PATCH bpf-next 1/2] xdp: Add drv_priv pointer to struct xdp_buff

Toke Høiland-Jørgensen
2022-11-23T14:48:03Z

This allows drivers to add more context data to the xdp_buff object, which
they can use for metadata kfunc implementations.

Cc: John Fastabend <john.fastabend@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Anatoly Burakov <anatoly.burakov@intel.com>
Cc: Alexander Lobakin <alexandr.lobakin@intel.com>
Cc: Magnus Karlsson <magnus.karlsson@gmail.com>
Cc: Maryam Tahhan <mtahhan@redhat.com>
Cc: Stanislav Fomichev <sdf@google.com>
Cc: xdp-hints@xdp-project.net
Cc: netdev@vger.kernel.org
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
---
include/net/xdp.h | 1 +
1 file changed, 1 insertion(+)

diff --git a/include/net/xdp.h b/include/net/xdp.h
index 348aefd467ed..27c54ad3c8e2 100644
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -84,6 +84,7 @@ struct xdp_buff {
struct xdp_txq_info *txq;
u32 frame_sz; /* frame size to deduce data_hard_end/reserved tailroom*/
u32 flags; /* supported values defined in xdp_buff_flags */
+ void *drv_priv;
};

static __always_inline bool xdp_buff_has_frags(struct xdp_buff *xdp)
--
2.38.1