From patchwork Wed Dec 18 10:17:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 1212173 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=synopsys.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=synopsys.com header.i=@synopsys.com header.b="FOikjep+"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 47d9v41F9Xz9sSF for ; Wed, 18 Dec 2019 21:18:08 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726908AbfLRKR4 (ORCPT ); Wed, 18 Dec 2019 05:17:56 -0500 Received: from smtprelay-out1.synopsys.com ([149.117.87.133]:37000 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726836AbfLRKRy (ORCPT ); Wed, 18 Dec 2019 05:17:54 -0500 Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 2C854C0D70; Wed, 18 Dec 2019 10:17:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1576664273; bh=Fhngj8VS44505o+6zDSx5RdNoW5Jx00tZo5oep61ABs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=FOikjep+VNqJdsgkFWiI0G47bxVGh2vtrEWId9JAsEurPNWqqL3/wyf+IT85j/rmW IpYJoqSyLTdpM9prMewD6OkFCd1kB280PQwd5adzMVo9zCaT/r50zMgO3XShqGzEwx R1kBZYPOlks8h/msr0ymky5l9kW9JJdidFb2oDza7gI9SdxaNdr+wE0gHaW8i1DT/z uzXUyqUGeX0NTozuEd5uqg8AxJ3cT4L2Z3lhVwGYX49KgbN8zQS0BJQmr+7pEgoBic B1+ws26Ppem0cIVvcwj0ssWYU3bYuFiD4XfoxEgNtRzuc15r/EE5rBKWM5Nf8Hf78D UX671VqEkBfiQ== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id D3F25A00A6; Wed, 18 Dec 2019 10:17:51 +0000 (UTC) From: Jose Abreu To: netdev@vger.kernel.org Cc: Joao Pinto , Jakub Kicinski , Jose Abreu , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net v3 8/9] net: stmmac: Enable 16KB buffer size Date: Wed, 18 Dec 2019 11:17:42 +0100 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org XGMAC supports maximum MTU that can go to 16KB. Lets add this check in the calculation of RX buffer size. Fixes: 7ac6653a085b ("stmmac: Move the STMicroelectronics driver") Signed-off-by: Jose Abreu --- Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Jose Abreu Cc: "David S. Miller" Cc: Maxime Coquelin Cc: netdev@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index f507a9bee15b..1cb466dd5b3f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1109,7 +1109,9 @@ static int stmmac_set_bfsize(int mtu, int bufsize) { int ret = bufsize; - if (mtu >= BUF_SIZE_4KiB) + if (mtu >= BUF_SIZE_8KiB) + ret = BUF_SIZE_16KiB; + else if (mtu >= BUF_SIZE_4KiB) ret = BUF_SIZE_8KiB; else if (mtu >= BUF_SIZE_2KiB) ret = BUF_SIZE_4KiB;