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.