sevki
c9e1dba412
setup CI/CD for kernel development - added CodeQL for code scanning - every pr is built as an image and is available for 30days on https://oklinux.dev - tagged and released on github for now Signed-off-by: sevki <s@sevki.io>
56 lines
1.8 KiB
ReStructuredText
56 lines
1.8 KiB
ReStructuredText
.. 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
|