From patchwork Thu Feb 11 16:18:28 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Sven Van Asbroeck X-Patchwork-Id: 381558 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 610B0C433E0 for ; Thu, 11 Feb 2021 16:23:31 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1B7F864E92 for ; Thu, 11 Feb 2021 16:23:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231883AbhBKQWm (ORCPT ); Thu, 11 Feb 2021 11:22:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35318 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231860AbhBKQTb (ORCPT ); Thu, 11 Feb 2021 11:19:31 -0500 Received: from mail-il1-x129.google.com (mail-il1-x129.google.com [IPv6:2607:f8b0:4864:20::129]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 09E21C061797; Thu, 11 Feb 2021 08:18:39 -0800 (PST) Received: by mail-il1-x129.google.com with SMTP id m20so5514358ilj.13; Thu, 11 Feb 2021 08:18:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=C5Y/YYGLT27TTbQWPy2GuX5CRZJc9WquBjUOYm1/AT0=; b=tWkwSUdxV+qF50Lxp8/LWfJ3wIhNLj8xz5PO9Ww/WuKme3jF8nb6obAf7sdaGQdmBr SQeKvfrELao/Fkxc7bxIxrzkWHhhoK+qf83bD5cDgUBMUzMTQ6bSxzyrQrNG/ZP1Bg+k SAT/YJp0Ux6n6OyuiBZbYfdiZPpu2IAA21BMaEglT/Ou9IPHyWLT4/hnl2bI4cRfSCwP WSOvn/WkxF+FIQ0+g2Oux2BoF5iCFDJFaXskJlPp124uNBe47dI2R87mjGU3W0rEPVtd aRzFzZXgcM4JdwZTfnIO9CiKf1UY2PELT5KywmoZNaKchC4+g6n7WNJOpbyy+aKkfz6/ pE9Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=C5Y/YYGLT27TTbQWPy2GuX5CRZJc9WquBjUOYm1/AT0=; b=HDGArOKZ6GY+Q/BRInP4yyMYxqSNEbif1tmGUGjh54FuUWz9V3qCN+YQdGd4tpAPcC WucNaoica3qy6NUoPoLgnPuqWTIsBn0VoXqhnOEZxfApYLWVWwhxyG7HUopOFeIGeGL6 YMMopB6FNTLPMKV+VPIE8BGasfTX0jhIDSmCFvlfRTUSgzRIM2fIt77ogP7NpicDr1sd /G0hxlrR1W4DIROMF16syu96cvF9jI2KwtO2cTw1gKiCySgK0R3vnNBCW4ERuAJ3u+Vu HXHj6YWBVOyQ6RjOQc9GXp+GTFQiEp2fFeUqIvAJjk8H+utEc3WWns3Om8qs0lbQJuxl p1Pg== X-Gm-Message-State: AOAM532eDMTo9vjOQBWEKfvptA5nr4b2DjzxrJ4y2qotyNGHop7GuHXu tYFsIJA+wHAbd3aSs/hh1p4= X-Google-Smtp-Source: ABdhPJz9J4p6111K+XvJ3TS0WDuNYQjoJfMUq5OIN8RVwWi64WwGIBLWvIo51OF4Y+9XdfBlfyMWPg== X-Received: by 2002:a92:c781:: with SMTP id c1mr6310007ilk.74.1613060318313; Thu, 11 Feb 2021 08:18:38 -0800 (PST) Received: from localhost.localdomain ([198.52.185.246]) by smtp.gmail.com with ESMTPSA id d135sm2729913iog.35.2021.02.11.08.18.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 11 Feb 2021 08:18:37 -0800 (PST) From: Sven Van Asbroeck X-Google-Original-From: Sven Van Asbroeck To: Bryan Whitehead , UNGLinuxDriver@microchip.com, David S Miller , Jakub Kicinski Cc: Sven Van Asbroeck , Andrew Lunn , Alexey Denisov , Sergej Bauer , Tim Harvey , =?utf-8?q?Anders_R=C3=B8nn?= =?utf-8?q?ingen?= , Hillf Danton , Christoph Hellwig , Willem de Bruijn , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next v2 3/5] TEST ONLY: lan743x: limit rx ring buffer size to 500 bytes Date: Thu, 11 Feb 2021 11:18:28 -0500 Message-Id: <20210211161830.17366-4-TheSven73@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210211161830.17366-1-TheSven73@gmail.com> References: <20210211161830.17366-1-TheSven73@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Sven Van Asbroeck Signed-off-by: Sven Van Asbroeck --- To: Bryan Whitehead To: UNGLinuxDriver@microchip.com To: "David S. Miller" To: Jakub Kicinski Cc: Andrew Lunn Cc: Alexey Denisov Cc: Sergej Bauer Cc: Tim Harvey Cc: Anders Rønningen Cc: Hillf Danton Cc: Christoph Hellwig Cc: Willem de Bruijn Cc: netdev@vger.kernel.org Cc: linux-kernel@vger.kernel.org drivers/net/ethernet/microchip/lan743x_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/microchip/lan743x_main.c b/drivers/net/ethernet/microchip/lan743x_main.c index 36cc67c72851..90d49231494d 100644 --- a/drivers/net/ethernet/microchip/lan743x_main.c +++ b/drivers/net/ethernet/microchip/lan743x_main.c @@ -1973,7 +1973,7 @@ static int lan743x_rx_init_ring_element(struct lan743x_rx *rx, int index) struct sk_buff *skb; dma_addr_t dma_ptr; - buffer_length = netdev->mtu + ETH_HLEN + 4 + RX_HEAD_PADDING; + buffer_length = 500 + ETH_HLEN + 4 + RX_HEAD_PADDING; descriptor = &rx->ring_cpu_ptr[index]; buffer_info = &rx->buffer_info[index];