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=-3.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS 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 3CDACC3A5A2 for ; Tue, 3 Sep 2019 13:49:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 11C4123711 for ; Tue, 3 Sep 2019 13:49:19 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="oenNZt/3"; dkim=fail reason="key not found in DNS" (0-bit key) header.d=codeaurora.org header.i=@codeaurora.org header.b="IPQrOIdc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729307AbfICNtS (ORCPT ); Tue, 3 Sep 2019 09:49:18 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:56658 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729171AbfICNtS (ORCPT ); Tue, 3 Sep 2019 09:49:18 -0400 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 449E5602CA; Tue, 3 Sep 2019 13:49:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1567518557; bh=mnaFV7XJnFz6G8NXxmImCVpTBftk1UBUWzAq4JGnIco=; h=Subject:From:In-Reply-To:References:To:Cc:Date:From; b=oenNZt/3emlnzGAyHDlLx4olOXDc4ObRDXEzuAx0cAuaOsB1ezh04CUjQ4mXcI3GI hFBfySfA970KdDQUEfYyA5Rr5+ODtFo2ds/pdrDp86bZsNNnEy38EblFCil0kfMJNP Bi/QO4pFr+wYZ93Xa0dzO09gHSL07UyUrDC0JeaM= Received: from potku.adurom.net (88-114-240-156.elisa-laajakaista.fi [88.114.240.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: kvalo@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 43B85602A9; Tue, 3 Sep 2019 13:49:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=codeaurora.org; s=default; t=1567518556; bh=mnaFV7XJnFz6G8NXxmImCVpTBftk1UBUWzAq4JGnIco=; h=Subject:From:In-Reply-To:References:To:Cc:From; b=IPQrOIdc3yX7DIQhQZKShytxc/L4G24eWWANn4YUfksksdP5e5Ez5zdGOs/l/KnRa NqWy9xAmudS6ULa77Q9ppuF0z4K02lfhpaBiZICYmBrjyhtU2KnzwkVAz9FtVXVTf5 okdAnFd2NpgGg5M+0sWtXr00iLsbFciOGK8dZa4I= DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 43B85602A9 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=kvalo@codeaurora.org Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [PATCH 5.3] mt76: mt76x0e: don't use hw encryption for MT7630E From: Kalle Valo In-Reply-To: <1565703400-10623-1-git-send-email-sgruszka@redhat.com> References: <1565703400-10623-1-git-send-email-sgruszka@redhat.com> To: Stanislaw Gruszka Cc: linux-wireless@vger.kernel.org, Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Roy Luo User-Agent: pwcli/0.0.0-git (https://github.com/kvalo/pwcli/) Python/2.7.12 Message-Id: <20190903134917.449E5602CA@smtp.codeaurora.org> Date: Tue, 3 Sep 2019 13:49:17 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Stanislaw Gruszka wrote: > Since 41634aa8d6db ("mt76: only schedule txqs from the tx tasklet") > I can observe firmware hangs on MT7630E on station mode: tx stop > functioning after minor activity (rx keep working) and on module > unload device fail to stop with messages: > > [ 5446.141413] mt76x0e 0000:06:00.0: TX DMA did not stop > [ 5449.176764] mt76x0e 0000:06:00.0: TX DMA did not stop > > Loading module again results in failure to associate with AP. > Only machine power off / power on cycle can make device work again. > > It's unclear why commit 41634aa8d6db causes the problem, but it is > related to HW encryption. Since issue is a firmware hang, that is super > hard to debug, just disable HW encryption as fix for the issue. > > Fixes: 41634aa8d6db ("mt76: only schedule txqs from the tx tasklet") > Signed-off-by: Stanislaw Gruszka Patch applied to wireless-drivers.git, thanks. 34b0e9b767bf mt76: mt76x0e: don't use hw encryption for MT7630E -- https://patchwork.kernel.org/patch/11092283/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches