From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx3-rdu2.redhat.com ([66.187.233.73]:54262 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754136AbeCFVsc (ORCPT ); Tue, 6 Mar 2018 16:48:32 -0500 Subject: [bpf-next V1 PATCH 09/15] mlx5: register a memory model when XDP is enabled From: Jesper Dangaard Brouer To: netdev@vger.kernel.org, =?utf-8?b?QmrDtnJu?= =?utf-8?b?VMO2cGVs?= , magnus.karlsson@intel.com Cc: eugenia@mellanox.com, Jason Wang , John Fastabend , Eran Ben Elisha , Saeed Mahameed , galp@mellanox.com, Jesper Dangaard Brouer , Daniel Borkmann , Alexei Starovoitov , Tariq Toukan Date: Tue, 06 Mar 2018 22:48:30 +0100 Message-ID: <152037291083.25478.3850731693124890762.stgit@firesoul> In-Reply-To: <152037278114.25478.12772686660335839274.stgit@firesoul> References: <152037278114.25478.12772686660335839274.stgit@firesoul> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: netdev-owner@vger.kernel.org List-ID: Now all the users of ndo_xdp_xmit have been converted to use xdp_return_frame. This enable a different memory model, thus activating another code path in the xdp_return_frame API. Signed-off-by: Jesper Dangaard Brouer --- drivers/net/ethernet/mellanox/mlx5/core/en_main.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c index da94c8cba5ee..51482943c583 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_main.c @@ -506,6 +506,13 @@ static int mlx5e_alloc_rq(struct mlx5e_channel *c, rq->mkey_be = c->mkey_be; } + /* This must only be activate for order-0 pages */ + if (rq->xdp_prog) + err = xdp_rxq_info_reg_mem_model(&rq->xdp_rxq, + MEM_TYPE_PAGE_ORDER0, NULL); + if (err < 0) + goto err_rq_wq_destroy; + for (i = 0; i < wq_sz; i++) { struct mlx5e_rx_wqe *wqe = mlx5_wq_ll_get_wqe(&rq->wq, i);