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 4C55AC4167B for ; Mon, 19 Dec 2022 08:35:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229499AbiLSIf1 (ORCPT ); Mon, 19 Dec 2022 03:35:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54690 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231499AbiLSIf0 (ORCPT ); Mon, 19 Dec 2022 03:35:26 -0500 Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6406795AF for ; Mon, 19 Dec 2022 00:35:25 -0800 (PST) Received: by mail-wm1-x334.google.com with SMTP id m5-20020a7bca45000000b003d2fbab35c6so5790453wml.4 for ; Mon, 19 Dec 2022 00:35:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=solid-run-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=52hahNbuRY46XgQIVISXaE7JbKxYGWL9g99K9Ci+IBU=; b=ZC2FKqerEx9qtzZe4J4ankTEh1eSrRfgETY+4/nQ0oIs8wjZB/j3Cl2rRu5mOQxl81 2dQ0eldmSXHiDLFBg0ATvMwlUo1VVMG9Pr8Fzk9kMdZS0CB6U7jXFRKzxAMTulv7ZK5h 8mkdyHWaHH4lzYBYsNAyGwOobpcicnii30ArLhIMP3Oejm4dg6HmzOrOIpuyU+dHGcEa 9lDtew1A6vlKQxzEcwFShZPwLJ6V1ffzxkGhVuKLxVVb52Go7TL4qLNbNKqWIa5nynmW 5PpzzvEEQaVxQnc8nFm/kxKJKdrixhWKfhrC5HmugUgKUXDm5ck10E97z004LUG7c8by VsLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=52hahNbuRY46XgQIVISXaE7JbKxYGWL9g99K9Ci+IBU=; b=zKnVz1sMClTkNQGcue/ivQH8/zYq0BwukpfeYnr4J4zrtdB0CihPBCYuQm+HkgACH+ ClQtF4py3IJJPpriIS5ssBPVPrdMCcWMJjF8q5/+BN/kiyM3/PM6s5EVwYcRN3vLf0uk afraQyuaZLWJalSzrGXUtXZ9sIJZ7dXZmkhToSlZ54C/ibF/wmDyZ9VuzHOFUbcKj0mq eGE+FGYkZW54dibgWVO0WqcyMcepmrSa3y6VRSX89RV0+RMo6kZb/TNdGJ/AowuANrFx yYX5uAV11HkE0Ju22NKtqqEr0uJkBKKg12XTlRJracyMDuMDX1iLLDGT7drPWOHtIsgP BYCQ== X-Gm-Message-State: ANoB5pkgDIAUKsz2DbbgGNYZFyHJUyAevFbuI4zpNbQxVimqwP7zw6vz n6qf2movwmkH98RK+WdKZpZf/TPAmhyRzjrK X-Google-Smtp-Source: AA0mqf7hYnzbIjb0nIp00iP7pAjJnjsCKyBOTShmIdjjr3HBawJcGzuQHqMBYyp4OiBpU8AkoGI4dw== X-Received: by 2002:a05:600c:3b93:b0:3d2:3e75:7bb9 with SMTP id n19-20020a05600c3b9300b003d23e757bb9mr12920522wms.34.1671438923815; Mon, 19 Dec 2022 00:35:23 -0800 (PST) Received: from localhost.localdomain (bzq-84-110-153-254.static-ip.bezeqint.net. [84.110.153.254]) by smtp.gmail.com with ESMTPSA id z22-20020a05600c0a1600b003cfd0bd8c0asm11364246wmp.30.2022.12.19.00.35.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Dec 2022 00:35:23 -0800 (PST) From: Alvaro Karsz To: virtualization@lists.linux-foundation.org, linux-pci@vger.kernel.org Cc: bhelgaas@google.com, Alvaro Karsz Subject: [RESEND PATCH 2/3] New PCI quirk for SolidRun SNET DPU. Date: Mon, 19 Dec 2022 10:35:10 +0200 Message-Id: <20221219083511.73205-3-alvaro.karsz@solid-run.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20221219083511.73205-1-alvaro.karsz@solid-run.com> References: <20221219083511.73205-1-alvaro.karsz@solid-run.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org The DPU advertises FLR, but it may cause the device to hang. This only happens with revision 0x1. Signed-off-by: Alvaro Karsz --- drivers/pci/quirks.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 285acc4aacc..809d03272c2 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5343,6 +5343,14 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_AMD, 0x149c, quirk_no_flr); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1502, quirk_no_flr); DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INTEL, 0x1503, quirk_no_flr); +/* FLR may cause the SolidRun SNET DPU (rev 0x1) to hang */ +static void quirk_no_flr_snet(struct pci_dev *dev) +{ + if (dev->revision == 0x1) + quirk_no_flr(dev); +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SOLIDRUN, 0x1000, quirk_no_flr_snet); + static void quirk_no_ext_tags(struct pci_dev *pdev) { struct pci_host_bridge *bridge = pci_find_host_bridge(pdev->bus); -- 2.32.0