From patchwork Fri Feb 21 06:47:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Esben Haabendal X-Patchwork-Id: 11395667 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CA3EF14E3 for ; Fri, 21 Feb 2020 06:47:50 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 81D6F20722 for ; Fri, 21 Feb 2020 06:47:50 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="LQdDU/sI"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=geanix.com header.i=@geanix.com header.b="fwDB4CLn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 81D6F20722 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=geanix.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=+LtarxSGOE5BztcoLrWinnv6RGeXoOfr1ZAmQzLFcNI=; b=LQdDU/sI5e5rgi dTAg/Pv5IAhzLFX+8pvHV6D9zDdMI5HBDqu2IGfTBnx7kWYdtLa56dYGo18I+2LX3bfVREZbOvKoH veEWagyECgu0W0+TKX+5tv2n509v5oJC1vIOSdfq6IhMYfvL6+mUS7EE22fBh4ms2yWRvD0Lp6gYK lgU9qAgZwinea4Nt6pDz255HIbJ/BVQPmG3tAWcDuEACRIxaaz9IUFuEdL91Hb4gLw0XePVkb6BWU YS1CCg+NVUKUJlt1DqW1w20OhRmyyA1FMMrBjNnGAQDY8764ywFqv22ocSS25SBaCvtpu0MDPtDd1 t2QB3qwM/xPGxnwSVirA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j526G-0000CH-J6; Fri, 21 Feb 2020 06:47:48 +0000 Received: from first.geanix.com ([116.203.34.67]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j525l-00085f-2d for linux-arm-kernel@lists.infradead.org; Fri, 21 Feb 2020 06:47:19 +0000 Received: from localhost (87-49-45-242-mobile.dk.customer.tdc.net [87.49.45.242]) by first.geanix.com (Postfix) with ESMTPSA id 845BDAEB4D; Fri, 21 Feb 2020 06:47:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=geanix.com; s=first; t=1582267630; bh=v8hfyWw4kbOSf4Vr8iOqNpwVN5vkMHP3BbYopvXwRbo=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=fwDB4CLntBUZXODVM2cahRr/VQAtZPn9lNpIVIiNpOosKQMFtOvNweEJwPzrQFEqz Ej22eU/HJg+Stttbh4O+BGQL2Oz9L+X0uhqlsyxSW/75MM61yAuPH1lXmG1bXqcaKB tF5R9LhsLcCTV7qCLodEdc/W52+THIAcHgbwhQL5oRVSYDuPbnY/68GZ2o7gOv9xb/ 9GN0tBryV5QcONGfisqhk9N4RnENk3oC24JC5nR0JNP2sksliUajyqCfl+7/lRU+Ag HrwnJZN/HTr11ASBMKqVtl8Yc6W9NGNIUY+QnhdRdG1CkyuHii+aaht1d2RrTqom43 CPmXrxArJA32g== From: Esben Haabendal To: netdev@vger.kernel.org Subject: [PATCH net v2 0/4] net: ll_temac: Bugfixes Date: Fri, 21 Feb 2020 07:47:09 +0100 Message-Id: X-Mailer: git-send-email 2.25.0 In-Reply-To: References: MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=4.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,UNPARSEABLE_RELAY,URIBL_BLOCKED autolearn=disabled version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on 05ff821c8cf1 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200220_224717_332445_75577CA3 X-CRM114-Status: UNSURE ( 5.91 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrew Lunn , Michal Simek , linux-kernel@vger.kernel.org, =?utf-8?q?Petr_=C5=A0tetiar?= , "David S . Miller" , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Fix a number of bugs which have been present since the first commit. The bugs fixed in patch 1,2 and 4 have all been observed in real systems, and was relatively easy to reproduce given an appropriate stress setup. Changes since v1: - Changed error handling of of dma_map_single() in temac_start_xmit() to drop packet instead of returning NETDEV_TX_BUSY. Esben Haabendal (4): net: ll_temac: Fix race condition causing TX hang net: ll_temac: Add more error handling of dma_map_single() calls net: ll_temac: Fix RX buffer descriptor handling on GFP_ATOMIC pressure net: ll_temac: Handle DMA halt condition caused by buffer underrun drivers/net/ethernet/xilinx/ll_temac.h | 4 + drivers/net/ethernet/xilinx/ll_temac_main.c | 209 ++++++++++++++++---- 2 files changed, 175 insertions(+), 38 deletions(-)