From: Frank Li Date: Thu, 10 Jul 2025 19:13:54 +0000 (-0400) Subject: selftests: pci_endpoint: Add doorbell test case X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b351e9c93a4fc0a1b789c0b89eeecb9d5bf564cd;p=thirdparty%2Fkernel%2Flinux.git selftests: pci_endpoint: Add doorbell test case Add doorbell test case. Signed-off-by: Frank Li [mani: Reworded the testcase description] Signed-off-by: Manivannan Sadhasivam Signed-off-by: Bjorn Helgaas Tested-by: Niklas Cassel Link: https://patch.msgid.link/20250710-ep-msi-v21-8-57683fc7fb25@nxp.com --- diff --git a/Documentation/PCI/endpoint/pci-test-howto.rst b/Documentation/PCI/endpoint/pci-test-howto.rst index aafc17ef3fd31..dd66858cde462 100644 --- a/Documentation/PCI/endpoint/pci-test-howto.rst +++ b/Documentation/PCI/endpoint/pci-test-howto.rst @@ -203,3 +203,18 @@ controllers, it is advisable to skip this testcase using this command:: # pci_endpoint_test -f pci_ep_bar -f pci_ep_basic -v memcpy -T COPY_TEST -v dma + +Kselftest EP Doorbell +~~~~~~~~~~~~~~~~~~~~~ + +If the Endpoint MSI controller is used for the doorbell usecase, run below +command for testing it: + + # pci_endpoint_test -f pcie_ep_doorbell + + # Starting 1 tests from 1 test cases. + # RUN pcie_ep_doorbell.DOORBELL_TEST ... + # OK pcie_ep_doorbell.DOORBELL_TEST + ok 1 pcie_ep_doorbell.DOORBELL_TEST + # PASSED: 1 / 1 tests passed. + # Totals: pass:1 fail:0 xfail:0 xpass:0 skip:0 error:0 diff --git a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c index ac26481d29d9d..da0db0e7c9693 100644 --- a/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c +++ b/tools/testing/selftests/pci_endpoint/pci_endpoint_test.c @@ -229,4 +229,32 @@ 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_SET_IRQTYPE, PCITEST_IRQ_TYPE_AUTO); + ASSERT_EQ(0, ret) TH_LOG("Can't set AUTO IRQ type"); + + pci_ep_ioctl(PCITEST_DOORBELL, 0); + EXPECT_FALSE(ret) TH_LOG("Test failed for Doorbell\n"); +} TEST_HARNESS_MAIN