From patchwork Tue Nov 22 21:44:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Horatiu Vultur X-Patchwork-Id: 13052776 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 B0954C433FE for ; Tue, 22 Nov 2022 21:40:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235033AbiKVVkE (ORCPT ); Tue, 22 Nov 2022 16:40:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232572AbiKVVkD (ORCPT ); Tue, 22 Nov 2022 16:40:03 -0500 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.153.233]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0FB45C5B72; Tue, 22 Nov 2022 13:39:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1669153199; x=1700689199; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=SObOV4ZVsIhR7Pxn0ehVi6XI7f+9C+SzUdrriWqtbxU=; b=KC9tI+yl4ON/W8dci5vDn4ChTJLw1w0PG2cUZwYhhDL/36B+vyTmES8m lkLnQ8d5IRZCIRDfYhK8OjMH04S69i1KVwwQtRQsxGVGC6vRVtHwWY+aY FhLvJXmQgiywl3nx2txTYTjduJHuVJphwzTS3OL5nEqGGWpvVr23ZNQPC J2Xb4seTt3XqO16fYl3N9ubdeCoR6dayK8OseHtqru71Mdb+uHDTvvZb0 Tyz/vkeKcLfW2iR+cP2LDJAmnbP0lzGkcfbM6/Qf+S7xVYzTVEgnAGUJ+ 9etWcM9XFXsRL2zHi/IY/k3UCwah6HbbY7Q6prPsWAQIbhKTpqCyF3nyM w==; X-IronPort-AV: E=Sophos;i="5.96,185,1665471600"; d="scan'208";a="190137418" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa5.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 22 Nov 2022 14:39:59 -0700 Received: from chn-vm-ex03.mchp-main.com (10.10.85.151) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.12; Tue, 22 Nov 2022 14:39:54 -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; Tue, 22 Nov 2022 14:39:51 -0700 From: Horatiu Vultur To: , , CC: , , , , , , , , , , Horatiu Vultur Subject: [PATCH net-next v4 0/7] net: lan966x: Extend xdp support Date: Tue, 22 Nov 2022 22:44:06 +0100 Message-ID: <20221122214413.3446006-1-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 Extend the current support of XDP in lan966x with the action XDP_TX and XDP_REDIRECT. The first patches just prepare the things such that it would be easier to add XDP_TX and XDP_REDIRECT actions. Like adding XDP_PACKET_HEADROOM, introduce helper functions, use the correct dma_dir for the page pool The last 2 patches introduce the XDP actions XDP_TX and XDP_REDIRECT. v3->v4: - use napi_consume_skb instead of dev_kfree_skb_any - arrange members in struct lan966x_tx_dcb_buf not to have holes - fix when xdp program is added the check for determining if page pool needs to be recreated was wrong - change type for len in lan966x_tx_dcb_buf to u32 v2->v3: - make sure to update rxq memory model - update the page pool direction if there is any xdp program - in case of action XDP_TX give back to reuse the page - in case of action XDP_REDIRECT, remap the frame and make sure to unmap it when is transmitted. v1->v2: - use skb_reserve of using skb_put and skb_pull - make sure that data_len doesn't include XDP_PACKET_HEADROOM Horatiu Vultur (7): net: lan966x: Add XDP_PACKET_HEADROOM net: lan966x: Introduce helper functions net: lan966x: Add len field to lan966x_tx_dcb_buf net: lan966x: Update rxq memory model net: lan966x: Update dma_dir of page_pool_params net: lan966x: Add support for XDP_TX net: lan966x: Add support for XDP_REDIRECT .../ethernet/microchip/lan966x/lan966x_fdma.c | 265 +++++++++++++++--- .../ethernet/microchip/lan966x/lan966x_main.c | 5 +- .../ethernet/microchip/lan966x/lan966x_main.h | 25 +- .../ethernet/microchip/lan966x/lan966x_xdp.c | 70 ++++- 4 files changed, 314 insertions(+), 51 deletions(-)