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Diffstat (limited to '')
| -rw-r--r-- | Documentation/misc-devices/pci-endpoint-test.txt | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Documentation/misc-devices/pci-endpoint-test.txt b/Documentation/misc-devices/pci-endpoint-test.txt new file mode 100644 index 000000000..58ccca441 --- /dev/null +++ b/Documentation/misc-devices/pci-endpoint-test.txt @@ -0,0 +1,41 @@ +Driver for PCI Endpoint Test Function + +This driver should be used as a host side driver if the root complex is +connected to a configurable PCI endpoint running *pci_epf_test* function +driver configured according to [1]. + +The "pci_endpoint_test" driver can be used to perform the following tests. + +The PCI driver for the test device performs the following tests + *) verifying addresses programmed in BAR + *) raise legacy IRQ + *) raise MSI IRQ + *) raise MSI-X IRQ + *) read data + *) write data + *) copy data + +This misc driver creates /dev/pci-endpoint-test.<num> for every +*pci_epf_test* function connected to the root complex and "ioctls" +should be used to perform the above tests. + +ioctl +----- + PCITEST_BAR: Tests the BAR. The number of the BAR to be tested + should be passed as argument. + PCITEST_LEGACY_IRQ: Tests legacy IRQ + PCITEST_MSI: Tests message signalled interrupts. The MSI number + to be tested should be passed as argument. + PCITEST_MSIX: Tests message signalled interrupts. The MSI-X number + to be tested should be passed as argument. + PCITEST_SET_IRQTYPE: Changes driver IRQ type configuration. The IRQ type + should be passed as argument (0: Legacy, 1:MSI, 2:MSI-X). + PCITEST_GET_IRQTYPE: Gets driver IRQ type configuration. + PCITEST_WRITE: Perform write tests. The size of the buffer should be passed + as argument. + PCITEST_READ: Perform read tests. The size of the buffer should be passed + as argument. + PCITEST_COPY: Perform read tests. The size of the buffer should be passed + as argument. + +[1] -> Documentation/PCI/endpoint/function/binding/pci-test.txt |