From patchwork Thu May 20 09:23:21 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 444008 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=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, 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 6D5A6C433B4 for ; Thu, 20 May 2021 11:20:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 50882613AC for ; Thu, 20 May 2021 11:20:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241122AbhETLVr (ORCPT ); Thu, 20 May 2021 07:21:47 -0400 Received: from mail.kernel.org ([198.145.29.99]:39586 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241000AbhETLTt (ORCPT ); Thu, 20 May 2021 07:19:49 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 6D859613E5; Thu, 20 May 2021 10:10:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1621505443; bh=UuI6kqth4+CJXrv9i+pQbcCa85wGcLTvm3qUCtZsltg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kUOUSuL5RLCA/ad/ZAt+h/Nqf3pcASr5fG546l2R2jW6u6bJ1aX2ZBoAUmkRIkgrL rf+h5wnj1B+j75Huzuxx71fae0eTY9z3KZg2MILQInwrpjweB+TKyzKbYuos+ALMMI fQDX31WyExF0ZbQzUpQVGbNJ7VCClUbkKXwz1hao= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jonathan McDowell , "David S. Miller" , Sasha Levin Subject: [PATCH 4.4 137/190] net: stmmac: Set FIFO sizes for ipq806x Date: Thu, 20 May 2021 11:23:21 +0200 Message-Id: <20210520092106.723994761@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210520092102.149300807@linuxfoundation.org> References: <20210520092102.149300807@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jonathan McDowell [ Upstream commit e127906b68b49ddb3ecba39ffa36a329c48197d3 ] Commit eaf4fac47807 ("net: stmmac: Do not accept invalid MTU values") started using the TX FIFO size to verify what counts as a valid MTU request for the stmmac driver. This is unset for the ipq806x variant. Looking at older patches for this it seems the RX + TXs buffers can be up to 8k, so set appropriately. (I sent this as an RFC patch in June last year, but received no replies. I've been running with this on my hardware (a MikroTik RB3011) since then with larger MTUs to support both the internal qca8k switch and VLANs with no problems. Without the patch it's impossible to set the larger MTU required to support this.) Signed-off-by: Jonathan McDowell Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c index ee5a7c05a0e6..f1eb9f99076a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c @@ -361,6 +361,8 @@ static int ipq806x_gmac_probe(struct platform_device *pdev) plat_dat->bsp_priv = gmac; plat_dat->fix_mac_speed = ipq806x_gmac_fix_mac_speed; plat_dat->multicast_filter_bins = 0; + plat_dat->tx_fifo_size = 8192; + plat_dat->rx_fifo_size = 8192; return stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); }