From nobody Sat Feb 7 08:05:07 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A0DDC4332F for ; Fri, 10 Nov 2023 18:12:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344893AbjKJSMR (ORCPT ); Fri, 10 Nov 2023 13:12:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47652 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345645AbjKJSLR (ORCPT ); Fri, 10 Nov 2023 13:11:17 -0500 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7ACCB2950D for ; Fri, 10 Nov 2023 02:33:42 -0800 (PST) Received: by mail-pl1-x62e.google.com with SMTP id d9443c01a7336-1cc5916d578so16537175ad.2 for ; Fri, 10 Nov 2023 02:33:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=endlessos.org; s=google; t=1699612422; x=1700217222; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=P8nODykpdMd/QuQkSZ1t9BSG46K5XmlrvFgBiwL5jzw=; b=BfY54kMWKZiNpxgDwPTosomEnEgsKfjIYzSAPtRvKLZSmNQ9ewIT+Mh8vLAKoykbGb KDOy2O46yc9Mjz5mc7Owjk1YCqkmfYorpgOO9FCddogShAYDstKFaQzad4K8ivulDcH4 5iCjIpw5cjdtkBi9S35Zh+DX4OFnEGd3H7NPLVP94fYFgAVFbR9rElUl6bPVVEG8gQCr uebMNwAT6awoXQ2KkMkDSkJkHzI8PYIsYJMZi6qEzI1e3orgKphgbYgAequ6/QUjTH2f 9FDmSdiMSl37H7niunnVPnlIn1UTvRevC83/tG76Vij7Nhi2Pint+UzvEdfMz8wjXv6n xCEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1699612422; x=1700217222; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=P8nODykpdMd/QuQkSZ1t9BSG46K5XmlrvFgBiwL5jzw=; b=HHcoj7euNeliWH6D7LSQuyg7msfWaGjouMc+S7XGrkZx0IOIlz+ZRvnUPLnBCaQHI1 rjvZ2obuOmzO0o3u67cr5be8ZM6zHWVQ48P/hv/O2mX0IJIyYd0Bl71sJHhbYH7v0snB wNQouyI+Dvc+01BVXKTo4vn6udMn6je+IDGdKNf7zo6LN+CN9ma/hEEAscgXZjxEL+0y 6xY+mcstYh3QMsb3OTkar1GVwCbPCjaB472dQSZPhQi36hyH9aslShvypWOW4uETWl1t YFyc8uax4NbCPK015SAit9bId7xgrrwORP67+WOlPyoj95itr5Chiwikffu6NonD6w72 NooA== X-Gm-Message-State: AOJu0YzuRJ7bXwoljj1o1zXuNSL9KN3xLD5VgXphP/tUFz/WO/1dAwUS Sq5tXYFwJwTbd39vVb9AukKpQQ== X-Google-Smtp-Source: AGHT+IHjFC6nDf4W0MIiTHQ5Vsil8/hQIjbCss9sx8CmgDHYcwV6iMqCPxN37OS6HIohKShUayaC9Q== X-Received: by 2002:a17:90b:3805:b0:27d:5562:7e0b with SMTP id mq5-20020a17090b380500b0027d55627e0bmr4235389pjb.7.1699612421849; Fri, 10 Nov 2023 02:33:41 -0800 (PST) Received: from localhost.localdomain ([123.51.167.56]) by smtp.googlemail.com with ESMTPSA id oa3-20020a17090b1bc300b0027cfd582b51sm1319374pjb.3.2023.11.10.02.33.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 10 Nov 2023 02:33:41 -0800 (PST) From: Jian-Hong Pan To: Ping-Ke Shih Cc: Kalle Valo , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux@endlessos.org, Jian-Hong Pan Subject: [PATCH] rtlwifi: rtl8723be: Disable ASPM if RTL8723BE connects to some Intel PCI bridge Date: Fri, 10 Nov 2023 18:32:28 +0800 Message-ID: <20231110103227.58008-2-jhp@endlessos.org> X-Mailer: git-send-email 2.42.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Disable rtl8723be's ASPM if the Realtek RTL8723BE PCIe Wireless adapter connects to some Intel PCI bridges, such as Skylake and Kabylake. Otherwise, the PCI AER flood hangs system: pcieport 0000:00:1c.5: PCIe Bus Error: severity=3DCorrected, type=3DPhysica= l Layer, (Receiver ID) pcieport 0000:00:1c.5: device [8086:9d15] error status/mask=3D00000001/00= 002000 pcieport 0000:00:1c.5: [ 0] RxErr (First) pcieport 0000:00:1c.5: AER: Corrected error received: 0000:00:1c.5 pcieport 0000:00:1c.5: AER: can't find device of ID00e5 pcieport 0000:00:1c.5: AER: Corrected error received: 0000:00:1c.5 pcieport 0000:00:1c.5: AER: can't find device of ID00e5 pcieport 0000:00:1c.5: AER: Multiple Corrected error received: 0000:00:1c.5 pcieport 0000:00:1c.5: AER: can't find device of ID00e5 Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=3D218127 Signed-off-by: Jian-Hong Pan --- .../wireless/realtek/rtlwifi/rtl8723be/sw.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c b/drivers/= net/wireless/realtek/rtlwifi/rtl8723be/sw.c index 43b611d5288d..720c79e0781a 100644 --- a/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c +++ b/drivers/net/wireless/realtek/rtlwifi/rtl8723be/sw.c @@ -25,10 +25,29 @@ static void rtl8723be_init_aspm_vars(struct ieee80211_h= w *hw) { struct rtl_priv *rtlpriv =3D rtl_priv(hw); struct rtl_pci *rtlpci =3D rtl_pcidev(rtl_pcipriv(hw)); + struct pci_dev *bridge_pdev; =20 /*close ASPM for AMD defaultly */ rtlpci->const_amdpci_aspm =3D 0; =20 + /* Disable ASPM if RTL8723BE connects to some Intel PCI bridges, such as + * Skylake and Kabylake. Otherwise, the PCI AER flood hangs system. + */ + bridge_pdev =3D rtlpci->pdev->bus->self; + if (bridge_pdev->vendor =3D=3D PCI_VENDOR_ID_INTEL) { + switch(bridge_pdev->device) { + case 0x9d15: + /* PCI bridges on Skylake */ + case 0xa110 ... 0xa11f: + case 0xa167 ... 0xa16a: + /* PCI bridges on Kabylake */ + case 0xa290 ... 0xa29f: + case 0xa2e7 ... 0xa2ee: + rtlpriv->cfg->mod_params->aspm_support =3D 0; + break; + } + } + /* ASPM PS mode. * 0 - Disable ASPM, * 1 - Enable ASPM without Clock Req, --=20 2.42.1