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selftests: pci_endpoint: Add doorbell test case

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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
This commit is contained in:
Frank Li
2025-07-10 15:13:54 -04:00
committed by Bjorn Helgaas
parent eefb83790a
commit b351e9c93a
2 changed files with 43 additions and 0 deletions
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15
Documentation/PCI/endpoint/pci-test-howto.rst
View File

@@ -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

28
tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
View File

@@ -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