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authorFrank Li <Frank.Li@nxp.com>2025-07-10 15:13:54 -0400
committerBjorn Helgaas <bhelgaas@google.com>2025-07-24 16:51:47 -0500
commitb351e9c93a4fc0a1b789c0b89eeecb9d5bf564cd (patch)
treefa21b61dab503c656d537c6d94527b16f2b76b09
parenteefb83790a0dda112d1755e4f5e213738d717e76 (diff)
selftests: pci_endpoint: Add doorbell test case
Add doorbell test case. Signed-off-by: Frank Li <Frank.Li@nxp.com> [mani: Reworded the testcase description] Signed-off-by: Manivannan Sadhasivam <mani@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Niklas Cassel <cassel@kernel.org> Link: https://patch.msgid.link/20250710-ep-msi-v21-8-57683fc7fb25@nxp.com
-rw-r--r--Documentation/PCI/endpoint/pci-test-howto.rst15
-rw-r--r--tools/testing/selftests/pci_endpoint/pci_endpoint_test.c28
2 files changed, 43 insertions, 0 deletions
diff --git a/Documentation/PCI/endpoint/pci-test-howto.rst b/Documentation/PCI/endpoint/pci-test-howto.rst
index aafc17ef3fd3..dd66858cde46 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 ac26481d29d9..da0db0e7c969 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