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56 lines
1.8 KiB
56 lines
1.8 KiB
.. SPDX-License-Identifier: GPL-2.0 |
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===================================== |
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Driver for PCI Endpoint Test Function |
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===================================== |
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This driver should be used as a host side driver if the root complex is |
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connected to a configurable PCI endpoint running ``pci_epf_test`` function |
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driver configured according to [1]_. |
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The "pci_endpoint_test" driver can be used to perform the following tests. |
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The PCI driver for the test device performs the following tests: |
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#) verifying addresses programmed in BAR |
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#) raise legacy IRQ |
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#) raise MSI IRQ |
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#) raise MSI-X IRQ |
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#) read data |
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#) write data |
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#) copy data |
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This misc driver creates /dev/pci-endpoint-test.<num> for every |
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``pci_epf_test`` function connected to the root complex and "ioctls" |
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should be used to perform the above tests. |
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ioctl |
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----- |
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PCITEST_BAR: |
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Tests the BAR. The number of the BAR to be tested |
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should be passed as argument. |
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PCITEST_LEGACY_IRQ: |
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Tests legacy IRQ |
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PCITEST_MSI: |
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Tests message signalled interrupts. The MSI number |
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to be tested should be passed as argument. |
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PCITEST_MSIX: |
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Tests message signalled interrupts. The MSI-X number |
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to be tested should be passed as argument. |
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PCITEST_SET_IRQTYPE: |
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Changes driver IRQ type configuration. The IRQ type |
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should be passed as argument (0: Legacy, 1:MSI, 2:MSI-X). |
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PCITEST_GET_IRQTYPE: |
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Gets driver IRQ type configuration. |
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PCITEST_WRITE: |
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Perform write tests. The size of the buffer should be passed |
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as argument. |
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PCITEST_READ: |
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Perform read tests. The size of the buffer should be passed |
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as argument. |
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PCITEST_COPY: |
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Perform read tests. The size of the buffer should be passed |
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as argument. |
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.. [1] Documentation/PCI/endpoint/function/binding/pci-test.rst
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