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- .. SPDX-License-Identifier: GPL-2.0
- =====================================
- 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.rst
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