From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jesper Dangaard Brouer Subject: [bpf-next V1 PATCH 2/8] i40e: implement flush flag for ndo_xdp_xmit Date: Wed, 30 May 2018 20:00:43 +0200 Message-ID: <152770324304.20510.3553783983496502887.stgit@firesoul> References: <152770312703.20510.5854417568847239931.stgit@firesoul> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Cc: John Fastabend , makita.toshiaki@lab.ntt.co.jp To: netdev@vger.kernel.org, Daniel Borkmann , Alexei Starovoitov , Jesper Dangaard Brouer Return-path: Received: from mx3-rdu2.redhat.com ([66.187.233.73]:49518 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753592AbeE3SAo (ORCPT ); Wed, 30 May 2018 14:00:44 -0400 In-Reply-To: <152770312703.20510.5854417568847239931.stgit@firesoul> Sender: netdev-owner@vger.kernel.org List-ID: Signed-off-by: Jesper Dangaard Brouer --- 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; }