From patchwork Wed Oct 19 13:50:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Horatiu Vultur X-Patchwork-Id: 13011817 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BBCF8C4332F for ; Wed, 19 Oct 2022 14:07:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233057AbiJSOHX (ORCPT ); Wed, 19 Oct 2022 10:07:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58488 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231728AbiJSOHG (ORCPT ); Wed, 19 Oct 2022 10:07:06 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 06C1AEB77F; Wed, 19 Oct 2022 06:49:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1666187355; x=1697723355; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=iFbJC0d3BwxOCXZ4J40099u99jnVBiYqWnM7oSlh7rQ=; b=TN2PKZEQCteazZBfd50pj4Kd8bSQQ1z959jDegWP2a9DBXJBFxMcRiLD Xt0ypdNwZS5xoMciPuRtK1Q2MG/yyecCI5pBD6dXRoqyRtsCpOt14W1Qa Nr+RKMQZKGvlTcGZEcw7f+SHbVVxYjY67geyr8dofWz6xkMI05jzW1aIS 9Nh5wajyEIPfMYJe8wd3jO2eJFMaMmB2kgfZdrYqaFQN7u7FB5BfC/f/U MpnJqgvag8KsBitbenzRcozCWkL0dw6OEJ7mdtYsnDnx7stum1lGOmma5 CuHOmnowq69Mbu4Sme4YCmInS+cI0R7j0JU8APZ71dbyacCBJJfhXjn/r Q==; X-IronPort-AV: E=Sophos;i="5.95,196,1661842800"; d="scan'208";a="196129545" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa1.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 19 Oct 2022 06:46:36 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex04.mchp-main.com (10.10.85.152) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.12; Wed, 19 Oct 2022 06:46:35 -0700 Received: from soft-dev3-1.microsemi.net (10.10.115.15) by chn-vm-ex03.mchp-main.com (10.10.85.151) with Microsoft SMTP Server id 15.1.2507.12 via Frontend Transport; Wed, 19 Oct 2022 06:46:33 -0700 From: Horatiu Vultur To: , , CC: , , , , , , , , , , Horatiu Vultur Subject: [PATCH net-next 0/5] net: lan966x: Add xdp support Date: Wed, 19 Oct 2022 15:50:03 +0200 Message-ID: <20221019135008.3281743-1-horatiu.vultur@microchip.com> X-Mailer: git-send-email 2.38.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add support for xdp in lan966x driver. Currently on XDP_PASS and XDP_DROP are supported. The first 3 patches are just moving things around just to simplify the code for when the xdp is added. Patch 4 actually adds the xdp. Currently the only supported actions are XDP_PASS and XDP_DROP. In the future this will be extended with XDP_TX and XDP_REDIRECT. Patch 5 changes to use page pool API, because the handling of the pages is similar with what already lan966x driver is doing. In this way is possible to remove some of the code. All these changes give a small improvement on the RX side: Before: iperf3 -c 10.96.10.1 -R [ 5] 0.00-10.01 sec 514 MBytes 430 Mbits/sec 0 sender [ 5] 0.00-10.00 sec 509 MBytes 427 Mbits/sec receiver After: iperf3 -c 10.96.10.1 -R [ 5] 0.00-10.02 sec 540 MBytes 452 Mbits/sec 0 sender [ 5] 0.00-10.01 sec 537 MBytes 450 Mbits/sec receiver Horatiu Vultur (5): net: lan966x: Add define IFH_LEN_BYTES net: lan966x: Rename lan966x_fdma_get_max_mtu net: lan966x: Split function lan966x_fdma_rx_get_frame net: lan966x: Add basic XDP support net: lan96x: Use page_pool API .../net/ethernet/microchip/lan966x/Kconfig | 1 + .../net/ethernet/microchip/lan966x/Makefile | 3 +- .../ethernet/microchip/lan966x/lan966x_fdma.c | 194 +++++++++++------- .../ethernet/microchip/lan966x/lan966x_ifh.h | 1 + .../ethernet/microchip/lan966x/lan966x_main.c | 26 ++- .../ethernet/microchip/lan966x/lan966x_main.h | 28 +++ .../ethernet/microchip/lan966x/lan966x_xdp.c | 100 +++++++++ 7 files changed, 275 insertions(+), 78 deletions(-) create mode 100644 drivers/net/ethernet/microchip/lan966x/lan966x_xdp.c