Received: by 2002:a05:6358:11c7:b0:104:8066:f915 with SMTP id i7csp4054365rwl; Mon, 10 Apr 2023 05:36:01 -0700 (PDT) X-Google-Smtp-Source: AKy350aSHEq4jjLVC7ShBOjPkW1iovIrBpYg2VPHjzmoB6tmt+AZWz3mOxiuy8q9gEqqX+hSsxZQ X-Received: by 2002:aa7:cb97:0:b0:504:81d4:118d with SMTP id r23-20020aa7cb97000000b0050481d4118dmr6503278edt.3.1681130161373; Mon, 10 Apr 2023 05:36:01 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1681130161; cv=none; d=google.com; s=arc-20160816; b=p4hits8Ru/RLMY4P4cq2Ky72sJ2e11Os86YcL65h+U31K00VFTZ11V1fMyWSqTuaio mUf/lX8HbjXSYTKv7K+k/GxOzdrZyeDImyx1huXUPfIMVIe2obHJfmRqbnKLvqXTVlKN nGVOZLs1IGOiREVdU6u21dGUqVB0jgUMUmDnWnv/62XqN4NJ8FA0nyVhj0/TxsLo2aSW jzHjAY3sCaRg4TJ+ygqZBjDNSDkMqzLYpp1Rlz9WETgZcst4J2vtJGkrV5gBCewkRczN L/sC1H1i8RBbhOW8LZx6tMa8/gCYk4h4rxpmSFumc0sBTim8U9/9JcyZgNAnJG/Iw5ud OkgQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=gWTorZIVK4RKzT2SgGfSLXlsAP2vOPazgNO/6Lkkxf4=; b=WiphPUhbFqn0ROYWkrgkWuyqXX6NFhsx0BTwpBrwPP2iENYbg7LUFWoxKU4IvYECuT 7d/EUDqjU7kywdXSxucP8/XBaPYMr8A+u5YQSsdXsm1GStsvFHzRexGdq4xuotq2J5nV 21MqYhbbiGl6tb9ia0xa9dahMH/61q6fZPP/bnlhMgx0UxO7xF/McRVQ5GkYBeisAtup SOfC9ySbKz5NmoXR8J7pl4iOqs/L+i+TOEBhYIaMNuCrMNJ7slsv8EOnzTNxe5kw2bMM 9WesgFnW2KKUEiIbn6vnraIxpZsiz2vMEUtaVfkIR4aerSQImrg/BaSaO14LEDovkf9Q k7vA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id f15-20020a50ee8f000000b00504b325bd46si565336edr.480.2023.04.10.05.35.36; Mon, 10 Apr 2023 05:36:01 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229742AbjDJMeV (ORCPT + 99 others); Mon, 10 Apr 2023 08:34:21 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50676 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229482AbjDJMeU (ORCPT ); Mon, 10 Apr 2023 08:34:20 -0400 Received: from out30-130.freemail.mail.aliyun.com (out30-130.freemail.mail.aliyun.com [115.124.30.130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6A77330FA; Mon, 10 Apr 2023 05:34:18 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R111e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045176;MF=wuzongyong@linux.alibaba.com;NM=1;PH=DS;RN=9;SR=0;TI=SMTPD_---0VfnWdpg_1681130050; Received: from L-PF27918B-1352.localdomain(mailfrom:wuzongyong@linux.alibaba.com fp:SMTPD_---0VfnWdpg_1681130050) by smtp.aliyun-inc.com; Mon, 10 Apr 2023 20:34:15 +0800 From: Wu Zongyong To: lukas@wunner.de, sdonthineni@nvidia.com, bhelgaas@google.com, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Wu Zongyong , wllenyj@linux.alibaba.com, wutu.xq2@linux.alibaba.com, gerry@linux.alibaba.com Subject: [PATCH] PCI: Mark NVIDIA T4 GPUs to avoid bus reset Date: Mon, 10 Apr 2023 20:34:11 +0800 Message-Id: <2dcebea53a6eb9bd212ec6d8974af2e5e0333ef6.1681129861.git.wuzongyong@linux.alibaba.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <388bc353a5f88edb502ec04c0dc53ab62a526020.1680090885.git.wuzongyong@linux.alibaba.com> References: <388bc353a5f88edb502ec04c0dc53ab62a526020.1680090885.git.wuzongyong@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-8.0 required=5.0 tests=ENV_AND_HDR_SPF_MATCH, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_NONE,SPF_PASS, UNPARSEABLE_RELAY,USER_IN_DEF_SPF_WL autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org NVIDIA T4 GPUs do not work with SBR. This problem is found when the T4 card is direct attached to a Root Port only. So avoid bus reset by marking T4 GPUs PCI_DEV_FLAGS_NO_BUS_RESET. Fixes: 4c207e7121fa ("PCI: Mark some NVIDIA GPUs to avoid bus reset") Signed-off-by: Wu Zongyong --- drivers/pci/quirks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 44cab813bf95..be86b93b9e38 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3618,7 +3618,7 @@ static void quirk_no_bus_reset(struct pci_dev *dev) */ static void quirk_nvidia_no_bus_reset(struct pci_dev *dev) { - if ((dev->device & 0xffc0) == 0x2340) + if ((dev->device & 0xffc0) == 0x2340 || dev->device == 0x1eb8) quirk_no_bus_reset(dev); } DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID, -- 2.34.3