linux-kernel - [PATCH v14 11/15] selftests: pci_endpoint: Add doorbell test case

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Message-Id: <20250207-ep-msi-v14-11-9671b136f2b8@nxp.com>
Date: Fri, 07 Feb 2025 14:39:53 -0500
From: Frank Li <Frank.Li@....com>
To: Kishon Vijay Abraham I <kishon@...nel.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, 
 Thomas Gleixner <tglx@...utronix.de>, Anup Patel <apatel@...tanamicro.com>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, Marc Zyngier <maz@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, Danilo Krummrich <dakr@...nel.org>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Krzysztof Wilczyński <kw@...ux.com>, 
 Kishon Vijay Abraham I <kishon@...nel.org>, 
 Bjorn Helgaas <bhelgaas@...gle.com>, Arnd Bergmann <arnd@...db.de>, 
 Shuah Khan <shuah@...nel.org>, Richard Zhu <hongxing.zhu@....com>, 
 Lucas Stach <l.stach@...gutronix.de>, 
 Lorenzo Pieralisi <lpieralisi@...nel.org>, Rob Herring <robh@...nel.org>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: Niklas Cassel <cassel@...nel.org>, dlemoal@...nel.org, jdmason@...zu.us, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-pci@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 imx@...ts.linux.dev, devicetree@...r.kernel.org, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH v14 11/15] selftests: pci_endpoint: Add doorbell test case

Add doorbell test case.

Signed-off-by: Frank Li <Frank.Li@....com>
---
change from v13 to v14
- merge to selftests framework
---
 .../selftests/pci_endpoint/pci_endpoint_test.c     | 25 ++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
index c267b822c1081..ed14c9fa073f9 100644
--- a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
+++ b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
@@ -218,4 +218,29 @@ TEST_F(pci_ep_data_transfer, COPY_TEST)
 					 test_size[i]);
 	}
 }
+
+FIXTURE(pcie_ep_doorbell)
+{
+	int fd;
+};
+
+FIXTURE_SETUP(pcie_ep_doorbell)
+{
+	self->fd = open(test_device, O_RDWR);
+
+	ASSERT_NE(-1, self->fd) TH_LOG("Can't open PCI Endpoint Test device");
+};
+
+FIXTURE_TEARDOWN(pcie_ep_doorbell)
+{
+	close(self->fd);
+};
+
+TEST_F(pcie_ep_doorbell, DOORBELL_TEST)
+{
+	int ret;
+
+	pci_ep_ioctl(PCITEST_DOORBELL, 0);
+	EXPECT_FALSE(ret) TH_LOG("Test failed for Doorbell\n");
+}
 TEST_HARNESS_MAIN

-- 
2.34.1