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selftests: pci_endpoint: Add BAR subrange mapping test case

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Add BAR_SUBRANGE_TEST to the pci_endpoint kselftest suite.

The test uses the PCITEST_BAR_SUBRANGE ioctl and will skip when the
chosen BAR is disabled (-ENODATA), when the endpoint/controller does not
support subrange mapping (-EOPNOTSUPP), or when the BAR is reserved for
the test register space (-EBUSY).

Signed-off-by: Koichiro Den <den@valinux.co.jp>
Signed-off-by: Manivannan Sadhasivam <mani@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://patch.msgid.link/20260124145012.2794108-9-den@valinux.co.jp
This commit is contained in:
Koichiro Den 2026-01-24 23:50:12 +09:00 committed by Bjorn Helgaas
parent 8cf82bb558
commit c17b9046fa
1 changed files with 17 additions and 0 deletions
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17
tools/testing/selftests/pci_endpoint/pci_endpoint_test.c
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@ -70,6 +70,23 @@ TEST_F(pci_ep_bar, BAR_TEST)
EXPECT_FALSE(ret) TH_LOG("Test failed for BAR%d", variant->barno);
}
TEST_F(pci_ep_bar, BAR_SUBRANGE_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_BAR_SUBRANGE, variant->barno);
if (ret == -ENODATA)
SKIP(return, "BAR is disabled");
if (ret == -EBUSY)
SKIP(return, "BAR is test register space");
if (ret == -EOPNOTSUPP)
SKIP(return, "Subrange map is not supported");
EXPECT_FALSE(ret) TH_LOG("Test failed for BAR%d", variant->barno);
}
FIXTURE(pci_ep_basic)
{
int fd;