[bpf-next V1 PATCH 2/8] i40e: implement flush flag for ndo_xdp_xmit
From: Jesper Dangaard Brouer <hidden>
Date: 2018-05-30 18:00:44
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Signed-off-by: Jesper Dangaard Brouer <redacted> --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index c0451d6e0790..03c1446f0465 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c@@ -3685,7 +3685,7 @@ int i40e_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames, if (!i40e_enabled_xdp_vsi(vsi) || queue_index >= vsi->num_queue_pairs) return -ENXIO; - if (unlikely(flags & ~XDP_XMIT_FLAGS_NONE)) + if (unlikely(flags & ~XDP_XMIT_FLAGS_MASK)) return -EINVAL; for (i = 0; i < n; i++) {
@@ -3699,6 +3699,9 @@ int i40e_xdp_xmit(struct net_device *dev, int n, struct xdp_frame **frames, } } + if (unlikely(flags & XDP_XMIT_FLUSH)) + i40e_xdp_ring_update_tail(vsi->xdp_rings[queue_index]); + return n - drops; }