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authorMauro Carvalho Chehab <mchehab+huawei@kernel.org>2020-06-15 08:50:14 +0200
committerJonathan Corbet <corbet@lwn.net>2020-06-19 22:06:00 +0200
commit16a60665cfc046cf676f163bbb9ded3ff05a4376 (patch)
tree48b94d49ea0c25629da9d72f544ec76d315e5bf1 /Documentation/misc-devices/pci-endpoint-test.rst
parentdocs: misc-devices/pci-endpoint-test.txt: convert to ReST (diff)
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docs: misc-devices/pci-endpoint-test.txt: convert to ReST
- Use titles markups; - Adjust identation; - use literal markup; - Use the proper notation for footnotes. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/d4def59b3e3042208ed44558ddfd96c8753fb88c.1592203650.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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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.txt