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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=no 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 D787ACA9EBC for ; Thu, 24 Oct 2019 06:19:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AD4072166E for ; Thu, 24 Oct 2019 06:19:11 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=natalenko.name header.i=@natalenko.name header.b="a+kth0dQ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2437708AbfJXGTJ (ORCPT ); Thu, 24 Oct 2019 02:19:09 -0400 Received: from vulcan.natalenko.name ([104.207.131.136]:41746 "EHLO vulcan.natalenko.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2403986AbfJXGTJ (ORCPT ); Thu, 24 Oct 2019 02:19:09 -0400 Received: from mail.natalenko.name (vulcan.natalenko.name [IPv6:fe80::5400:ff:fe0c:dfa0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by vulcan.natalenko.name (Postfix) with ESMTPSA id 229A060D3F2; Thu, 24 Oct 2019 08:19:06 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=natalenko.name; s=dkim-20170712; t=1571897946; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=2cgaBnYz4a1qGwNBwfPw34bFfBPfd3lSFyIheuElHw8=; b=a+kth0dQSGJ06qGmQi3wuwsnIvf3oGvwfZZBpAsRtonnY+BTfdRjUctnQbO5skefNMoLTa Vv3yip+Jl1EisyvkAKmZDNf2mi6fIbV2XyOYcnb6A815qZeMOYdZVZ4McA5CGGSAN827Je 4cLdcB77cKe1/ffbzD3reFFM09FnEuQ= MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Thu, 24 Oct 2019 08:19:06 +0200 From: Oleksandr Natalenko To: Lorenzo Bianconi Cc: kvalo@codeaurora.org, linux-wireless@vger.kernel.org, nbd@nbd.name, sgruszka@redhat.com, lorenzo.bianconi@redhat.com, netdev@vger.kernel.org Subject: Re: [PATCH wireless-drivers 0/2] fix mt76x2e hangs on U7612E mini-pcie In-Reply-To: References: Message-ID: X-Sender: oleksandr@natalenko.name User-Agent: Roundcube Webmail/1.3.10 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Hi. On 24.10.2019 00:23, Lorenzo Bianconi wrote: > Various mt76x2e issues have been reported on U7612E mini-pcie card [1]. > On U7612E-H1 PCIE_ASPM causes continuous mcu hangs and instability and > so patch 1/2 disable it by default. > Moreover mt76 does not properly unmap dma buffers for non-linear skbs. > This issue may result in hw hangs if the system relies on IOMMU. > Patch 2/2 fix the problem properly unmapping data fragments on > non-linear skbs. > > [1]: > https://lore.kernel.org/netdev/deaafa7a3e9ea2111ebb5106430849c6@natalenko.name/ > > Lorenzo Bianconi (2): > mt76: mt76x2e: disable pcie_aspm by default > mt76: dma: fix buffer unmap with non-linear skbs > > drivers/net/wireless/mediatek/mt76/dma.c | 10 ++-- > drivers/net/wireless/mediatek/mt76/mmio.c | 47 +++++++++++++++++++ > drivers/net/wireless/mediatek/mt76/mt76.h | 1 + > .../net/wireless/mediatek/mt76/mt76x2/pci.c | 2 + > 4 files changed, 57 insertions(+), 3 deletions(-) Feel free to add my Reported-by: Oleksandr Natalenko Tested-by: Oleksandr Natalenko and thanks for the submission. -- Oleksandr Natalenko (post-factum)