From patchwork Wed Dec 11 23:40:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Bowman, Terry" X-Patchwork-Id: 13904460 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2040.outbound.protection.outlook.com [40.107.243.40]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 631061F37B0; Wed, 11 Dec 2024 23:42:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.107.243.40 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733960558; cv=fail; b=OX9GZrJWXnSB3u+eYMfuWA8AzFaoA5u5KvidIZ1/JyVrP08VZw3tMdiv/8cE05AbdHhmdhXvIuPwj5m43sC6FBKvplnGHE+zFxp9escF7rRNB4B2oFmgyWEqlzARk9ASN+oqIMPmWBAZbaF2DN+pJerxgXGM31hTK5KBgzAe/Rc= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733960558; c=relaxed/simple; bh=6QBwewHPT/LO0YJSqUxQOiFF8nN18qldRJ7wbyyNUOE=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=REI5LepiP6vzx2Ku06FVsySDmp4URk7bjXrtV2/saCl5Ae3yYbEwYYfLWEoRmoxQvvThHByOSEkKCmB+RGR7NxZlVpqTIGmTeBcFkA8c1Jz/6h/38j/P9304WKFk8mdtyH3nuu30EDt2DCp55IietHUhDYqtFOUyJyt0qLP/hVQ= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com; spf=fail smtp.mailfrom=amd.com; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b=IGAtuHMy; arc=fail smtp.client-ip=40.107.243.40 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amd.com Authentication-Results: smtp.subspace.kernel.org; spf=fail smtp.mailfrom=amd.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amd.com header.i=@amd.com header.b="IGAtuHMy" ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=y/gMVEDRkWFP4oRYAS2ysC3VbysRyXDT8cYb0ITAWksJiINsbnkEx9ZqbnLPhomiV9cJxis7ec/9QHE2DuKnGlvSutQMn82f6zLwqnyI2jFn58UhwFzFpqT0Fjt/0zjt1Aiqs8XmbdeO8f8j9+uvxlj3FKMML1T073oV8VqeSm0WZ/XEsYqwT6rPQP/MyjNNrnrzPFhyr2GVR7i75aSM4whZlioZNDh2vnlECSnQRfKtQlcs8dpmecegiTc9yPMi6PinPl65G5Ql2nKeflOaJCNx4Ajk4BFwVfK5n5tFl1JQI91XTENhZ7meX7oxPLDsiHK/BF2IapXLCyXXh3MbAA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=qVa8s1ecQnT3J5D9RiAA476+5RaYmlod9XFoAbNtajE=; b=PM6n1DDGKvwx3C7dmsHeyhIqqsxFXO/cU+1OuaYZIWIN4g93q5Hyp0hHrRrNSXph1aQoF4vGuZ4HVg/FqIzo9Eem5ButBXxI6ezoK2iFHXxLL1ziDVvhkvlQ5HXAHN1mt8fSDAyDCo7Pmo6tZraEaNQrpXGZ774cyZndiLt7gkWe9/o54SbfjUIw5F8lgp4HJ8Tegw2Q8NT86pD+PPsXHipQHbvpSPg2l0rxzYlVoYa51Cd15NQm2kf4LYNEsN/CHYi58nprHYNHreWfsDwPWOxEyH+3G18X6cxfz5AGNpeLJmEa/y8KsmZc05qaKRZ7ZHrkY+GvzBztcyTXYZgyZA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=vger.kernel.org smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amd.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=qVa8s1ecQnT3J5D9RiAA476+5RaYmlod9XFoAbNtajE=; b=IGAtuHMyTbuklJOr1r3JrfSkzKGiJmf6iwlqZjsSqFCVpPJre6QVEqBhj2wvORdyPznyC3d0wKjZMlIV9ceVWn61RKDfE1INIIsFRXsK3Y8jKBrMdWhzqAGaQijbnYxpcSf6uNbGNDQgYIHEk5M4N+YKFgK5KDHjhFKC4wUQ04k= Received: from BLAP220CA0028.NAMP220.PROD.OUTLOOK.COM (2603:10b6:208:32c::33) by CH2PR12MB4104.namprd12.prod.outlook.com (2603:10b6:610:a4::12) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.8207.15; Wed, 11 Dec 2024 23:42:32 +0000 Received: from BN2PEPF000044A4.namprd02.prod.outlook.com (2603:10b6:208:32c:cafe::d7) by BLAP220CA0028.outlook.office365.com (2603:10b6:208:32c::33) with Microsoft SMTP Server (version=TLS1_3, cipher=TLS_AES_256_GCM_SHA384) id 15.20.8251.14 via Frontend Transport; Wed, 11 Dec 2024 23:42:32 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 165.204.84.17) smtp.mailfrom=amd.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=amd.com; Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by BN2PEPF000044A4.mail.protection.outlook.com (10.167.243.155) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.8251.15 via Frontend Transport; Wed, 11 Dec 2024 23:42:32 +0000 Received: from ethanolx7ea3host.amd.com (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Wed, 11 Dec 2024 17:42:31 -0600 From: Terry Bowman To: , , , , , , , , , , , , , , , , , , , , , Subject: [PATCH v4 13/15] cxl/pci: Add trace logging for CXL PCIe Port RAS errors Date: Wed, 11 Dec 2024 17:40:00 -0600 Message-ID: <20241211234002.3728674-14-terry.bowman@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241211234002.3728674-1-terry.bowman@amd.com> References: <20241211234002.3728674-1-terry.bowman@amd.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: SATLEXMB04.amd.com (10.181.40.145) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN2PEPF000044A4:EE_|CH2PR12MB4104:EE_ X-MS-Office365-Filtering-Correlation-Id: 9a5a068c-d4e4-44cc-0a41-08dd1a3d7bb4 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|36860700013|82310400026|1800799024|921020; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(7416014)(376014)(36860700013)(82310400026)(1800799024)(921020);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Dec 2024 23:42:32.6577 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9a5a068c-d4e4-44cc-0a41-08dd1a3d7bb4 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN2PEPF000044A4.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH2PR12MB4104 The CXL drivers use kernel trace functions for logging endpoint and RCH Downstream Port RAS errors. Similar functionality is required for CXL Root Ports, CXL Downstream Switch Ports, and CXL Upstream Switch Ports. Introduce trace logging functions for both RAS correctable and uncorrectable errors specific to CXL PCIe Ports. Additionally, update the PCIe Port error handlers to invoke these new trace functions. Signed-off-by: Terry Bowman Reviewed-by: Alejandro Lucero --- drivers/cxl/core/pci.c | 16 ++++++++++---- drivers/cxl/core/trace.h | 47 ++++++++++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+), 4 deletions(-) diff --git a/drivers/cxl/core/pci.c b/drivers/cxl/core/pci.c index 52afaedf5171..3294ad5ff28f 100644 --- a/drivers/cxl/core/pci.c +++ b/drivers/cxl/core/pci.c @@ -661,10 +661,14 @@ static void __cxl_handle_cor_ras(struct device *dev, addr = ras_base + CXL_RAS_CORRECTABLE_STATUS_OFFSET; status = readl(addr); - if (status & CXL_RAS_CORRECTABLE_STATUS_MASK) { - writel(status & CXL_RAS_CORRECTABLE_STATUS_MASK, addr); + if (!(status & CXL_RAS_CORRECTABLE_STATUS_MASK)) + return; + writel(status & CXL_RAS_CORRECTABLE_STATUS_MASK, addr); + + if (is_cxl_memdev(dev)) trace_cxl_aer_correctable_error(to_cxl_memdev(dev), status); - } + else + trace_cxl_port_aer_correctable_error(dev, status); } static void cxl_handle_endpoint_cor_ras(struct cxl_dev_state *cxlds) @@ -720,7 +724,11 @@ static bool __cxl_handle_ras(struct device *dev, void __iomem *ras_base) } header_log_copy(ras_base, hl); - trace_cxl_aer_uncorrectable_error(to_cxl_memdev(dev), status, fe, hl); + if (is_cxl_memdev(dev)) + trace_cxl_aer_uncorrectable_error(to_cxl_memdev(dev), status, fe, hl); + else + trace_cxl_port_aer_uncorrectable_error(dev, status, fe, hl); + writel(status & CXL_RAS_UNCORRECTABLE_STATUS_MASK, addr); return true; diff --git a/drivers/cxl/core/trace.h b/drivers/cxl/core/trace.h index 8389a94adb1a..681e415ac8f5 100644 --- a/drivers/cxl/core/trace.h +++ b/drivers/cxl/core/trace.h @@ -48,6 +48,34 @@ { CXL_RAS_UC_IDE_RX_ERR, "IDE Rx Error" } \ ) +TRACE_EVENT(cxl_port_aer_uncorrectable_error, + TP_PROTO(struct device *dev, u32 status, u32 fe, u32 *hl), + TP_ARGS(dev, status, fe, hl), + TP_STRUCT__entry( + __string(devname, dev_name(dev)) + __string(host, dev_name(dev->parent)) + __field(u32, status) + __field(u32, first_error) + __array(u32, header_log, CXL_HEADERLOG_SIZE_U32) + ), + TP_fast_assign( + __assign_str(devname); + __assign_str(host); + __entry->status = status; + __entry->first_error = fe; + /* + * Embed the 512B headerlog data for user app retrieval and + * parsing, but no need to print this in the trace buffer. + */ + memcpy(__entry->header_log, hl, CXL_HEADERLOG_SIZE); + ), + TP_printk("device=%s host=%s status: '%s' first_error: '%s'", + __get_str(devname), __get_str(host), + show_uc_errs(__entry->status), + show_uc_errs(__entry->first_error) + ) +); + TRACE_EVENT(cxl_aer_uncorrectable_error, TP_PROTO(const struct cxl_memdev *cxlmd, u32 status, u32 fe, u32 *hl), TP_ARGS(cxlmd, status, fe, hl), @@ -96,6 +124,25 @@ TRACE_EVENT(cxl_aer_uncorrectable_error, { CXL_RAS_CE_PHYS_LAYER_ERR, "Received Error From Physical Layer" } \ ) +TRACE_EVENT(cxl_port_aer_correctable_error, + TP_PROTO(struct device *dev, u32 status), + TP_ARGS(dev, status), + TP_STRUCT__entry( + __string(devname, dev_name(dev)) + __string(host, dev_name(dev->parent)) + __field(u32, status) + ), + TP_fast_assign( + __assign_str(devname); + __assign_str(host); + __entry->status = status; + ), + TP_printk("device=%s host=%s status='%s'", + __get_str(devname), __get_str(host), + show_ce_errs(__entry->status) + ) +); + TRACE_EVENT(cxl_aer_correctable_error, TP_PROTO(const struct cxl_memdev *cxlmd, u32 status), TP_ARGS(cxlmd, status),