libeth: xsk: add XSk XDP_TX sending helpers

Add Xsk counterparts for XDP_TX buffer sending and completion.
The same base structures and functions used from the libeth_xdp core,
with adjustments to that XSk Rx always operates on &xdp_buff_xsk for
both head and frags. And unlike regular Rx, here unlikely() are used
for frags, as the header split gives no benefits for XSk Rx, at
least for now.

Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/libeth/priv.h b/drivers/net/ethernet/intel/libeth/priv.h
index 1bd6e2d7a3e7..ebcb26f24401 100644
--- a/drivers/net/ethernet/intel/libeth/priv.h
+++ b/drivers/net/ethernet/intel/libeth/priv.h
@@ -8,12 +8,18 @@
 
 /* XDP */
 
+struct libeth_xdp_buff;
+struct libeth_xdp_tx_frame;
 struct skb_shared_info;
 struct xdp_frame_bulk;
 
+void libeth_xsk_tx_return_bulk(const struct libeth_xdp_tx_frame *bq,
+			       u32 count);
+
 struct libeth_xdp_ops {
 	void	(*bulk)(const struct skb_shared_info *sinfo,
 			struct xdp_frame_bulk *bq, bool frags);
+	void	(*xsk)(struct libeth_xdp_buff *xdp);
 };
 
 void libeth_attach_xdp(const struct libeth_xdp_ops *ops);