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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D709CCA0ECB for ; Mon, 11 Sep 2023 23:02:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349159AbjIKVcq (ORCPT ); Mon, 11 Sep 2023 17:32:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53450 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240532AbjIKOqk (ORCPT ); Mon, 11 Sep 2023 10:46:40 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3EBE106 for ; Mon, 11 Sep 2023 07:46:36 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 24F1FC433C7; Mon, 11 Sep 2023 14:46:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694443596; bh=pKJ5MI2KlNuvQlY6vhglpOQ9dLt4j7LZewx/dJra3+w=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Jx2ZOU7DqMO9/D92L1rCLStmVBmaWRNNI4IQTaYJ5IIRocy9lMG3BrKQ2UtLf3ey9 XEcNsvbi0sUTQ4ZaGeWkRg5t39nYjkrmXswxqH1MMt398TlSq6VFOw4vmm4QNYe4iQ NO6CPYIm3KYitz3A08bqdRwRIm6/10mnvlStkWUU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Wu Zongyong , Bjorn Helgaas , Sasha Levin Subject: [PATCH 6.4 434/737] PCI: Mark NVIDIA T4 GPUs to avoid bus reset Date: Mon, 11 Sep 2023 15:44:53 +0200 Message-ID: <20230911134702.722886884@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230911134650.286315610@linuxfoundation.org> References: <20230911134650.286315610@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 6.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Wu Zongyong [ Upstream commit d5af729dc2071273f14cbb94abbc60608142fd83 ] NVIDIA T4 GPUs do not work with SBR. This problem is found when the T4 card is direct attached to a Root Port only. Avoid bus reset by marking T4 GPUs PCI_DEV_FLAGS_NO_BUS_RESET. Fixes: 4c207e7121fa ("PCI: Mark some NVIDIA GPUs to avoid bus reset") Link: https://lore.kernel.org/r/2dcebea53a6eb9bd212ec6d8974af2e5e0333ef6.1681129861.git.wuzongyong@linux.alibaba.com Signed-off-by: Wu Zongyong Signed-off-by: Bjorn Helgaas Signed-off-by: Sasha Levin --- 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 b7c65193e786a..c05ed6e60748d 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3631,7 +3631,7 @@ 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, -- 2.40.1