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Wed, 29 May 2024 18:27:29 -0700 From: Joseph Jang To: , , , , CC: Subject: [PATCH 1/1] selftest: drivers: Add support its msi hwirq checking Date: Wed, 29 May 2024 18:27:27 -0700 Message-ID: <20240530012727.324611-2-jjang@nvidia.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240530012727.324611-1-jjang@nvidia.com> References: <20240530012727.324611-1-jjang@nvidia.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ5PEPF000001EC:EE_|LV8PR12MB9359:EE_ X-MS-Office365-Filtering-Correlation-Id: ffa95f74-7313-4cfd-1e44-08dc8047b275 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230031|1800799015|376005|82310400017|36860700004; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230031)(1800799015)(376005)(82310400017)(36860700004);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 May 2024 01:27:40.4664 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: ffa95f74-7313-4cfd-1e44-08dc8047b275 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF000001EC.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV8PR12MB9359 Validate there are no duplicate ITS-MSI hwirqs from the /sys/kernel/irq/*/hwirq. One example log show 2 duplicated MSI entries in the /proc/interrupts. 150: 0 ... ITS-MSI 3355443200 Edge pciehp 152: 0 ... ITS-MSI 3355443200 Edge pciehp Kernel patch ("PCI/MSI: Fix MSI hwirq truncation") [1] fix above issue. [1]: https://lore.kernel.org/all/20240115135649.708536-1-vidyas@nvidia.com/ Reviewed-by: Matthew R. Ochs Signed-off-by: Joseph Jang --- tools/testing/selftests/drivers/irq/Makefile | 5 +++++ .../selftests/drivers/irq/its-msi-irq-test.sh | 20 +++++++++++++++++++ 2 files changed, 25 insertions(+) create mode 100644 tools/testing/selftests/drivers/irq/Makefile create mode 100755 tools/testing/selftests/drivers/irq/its-msi-irq-test.sh diff --git a/tools/testing/selftests/drivers/irq/Makefile b/tools/testing/selftests/drivers/irq/Makefile new file mode 100644 index 000000000000..569df5de22ee --- /dev/null +++ b/tools/testing/selftests/drivers/irq/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0 + +TEST_PROGS := its-msi-irq-test.sh + +include ../../lib.mk diff --git a/tools/testing/selftests/drivers/irq/its-msi-irq-test.sh b/tools/testing/selftests/drivers/irq/its-msi-irq-test.sh new file mode 100755 index 000000000000..87c88674903f --- /dev/null +++ b/tools/testing/selftests/drivers/irq/its-msi-irq-test.sh @@ -0,0 +1,20 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +if [ -z "$(grep "ITS-MSI" /proc/interrupts)" ]; then + echo "SKIP: no ITS-MSI irq." + exit 4 +fi + +# Get ITS-MSI hwirq list from /sys/kernel/irq/*/hwirq. +its_msi_irq_list=$(grep "ITS-MSI" /sys/kernel/irq/*/chip_name | + awk -F ':' '{print $1}' | + xargs -I {} sh -c 'cat $(dirname {})/hwirq' | sort -V) + +# Check whether could find duplicated its-msi hwirq or not. +if [ -n "$(echo "$its_msi_irq_list" | uniq -cd)" ]; then + echo "ERROR: find duplicated its-msi hwirq." + exit 1 +fi + +exit 0