From mboxrd@z Thu Jan 1 00:00:00 1970 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=-19.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 D8952C43461 for ; Wed, 5 May 2021 16:32:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C0B3B61404 for ; Wed, 5 May 2021 16:32:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234408AbhEEQdM (ORCPT ); Wed, 5 May 2021 12:33:12 -0400 Received: from mail.kernel.org ([198.145.29.99]:52496 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234138AbhEEQcl (ORCPT ); Wed, 5 May 2021 12:32:41 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 549A6613F3; Wed, 5 May 2021 16:31:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620232304; bh=kEnxKvRvXtsSjAMGQKobqwfi53MrIc8FrAhY6aWVDy8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IA3LKfUBvJMgmLY6BU4JAyfWmFim84Dz5PP5Gh6lG7xSKLdBL+Z6Wkm2Wgm3iouWB RPKt8Ru6vvMDiE40S/zK07iFZ449CRd49KO/209uCRdK76LkuwTgY/yzpPTW9V1X5c dglvCzdUYP6rqEyV7278b4f1CZz5zY14FdFgw/jZSULFpEN18akfcQqQD0S5DqvJkX xvQaiDocjXOvpyFCuQ9hb975eSrAUqeuBY7SoWrBSirXTU+IIyvqkouNNlOButMWWg YEjpu4bnuBpLtRCxfeWTZD1qHya733kBpZfZY4ZxGXzXaHjrP+aEeGcJF7PJhNEXeo oVSdH33/WLN4Q== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jonathan McDowell , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 5.12 014/116] net: stmmac: Set FIFO sizes for ipq806x Date: Wed, 5 May 2021 12:29:42 -0400 Message-Id: <20210505163125.3460440-14-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210505163125.3460440-1-sashal@kernel.org> References: <20210505163125.3460440-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 bf3250e0e59c..749585fe6fc9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c @@ -352,6 +352,8 @@ 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; err = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); if (err) -- 2.30.2