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Commit | Line | Data |
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0cfb512e KVA |
1 | Driver for PCI Endpoint Test Function |
2 | ||
3 | This driver should be used as a host side driver if the root complex is | |
4 | connected to a configurable PCI endpoint running *pci_epf_test* function | |
5 | driver configured according to [1]. | |
6 | ||
7 | The "pci_endpoint_test" driver can be used to perform the following tests. | |
8 | ||
9 | The PCI driver for the test device performs the following tests | |
10 | *) verifying addresses programmed in BAR | |
11 | *) raise legacy IRQ | |
12 | *) raise MSI IRQ | |
13 | *) read data | |
14 | *) write data | |
15 | *) copy data | |
16 | ||
17 | This misc driver creates /dev/pci-endpoint-test.<num> for every | |
18 | *pci_epf_test* function connected to the root complex and "ioctls" | |
19 | should be used to perform the above tests. | |
20 | ||
21 | ioctl | |
22 | ----- | |
23 | PCITEST_BAR: Tests the BAR. The number of the BAR to be tested | |
24 | should be passed as argument. | |
25 | PCITEST_LEGACY_IRQ: Tests legacy IRQ | |
26 | PCITEST_MSI: Tests message signalled interrupts. The MSI number | |
27 | to be tested should be passed as argument. | |
28 | PCITEST_WRITE: Perform write tests. The size of the buffer should be passed | |
29 | as argument. | |
30 | PCITEST_READ: Perform read tests. The size of the buffer should be passed | |
31 | as argument. | |
32 | PCITEST_COPY: Perform read tests. The size of the buffer should be passed | |
33 | as argument. | |
34 | ||
35 | [1] -> Documentation/PCI/endpoint/function/binding/pci-test.txt |