From 88614075a952b1af50f5fb10c958e311f6b4f68a Mon Sep 17 00:00:00 2001 From: "Ahmed S. Darwish" <darwi@linutronix.de> Date: Fri, 11 Nov 2022 14:55:04 +0100 Subject: [PATCH] Documentation: PCI: Add reference to PCI/MSI device driver APIs All exported device-driver MSI APIs are now grouped in one place at drivers/pci/msi/api.c with comprehensive kernel-docs added. Reference these kernel-docs in the official PCI/MSI howto. Signed-off-by: Ahmed S. Darwish <darwi@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20221111122015.397739421@linutronix.de --- Documentation/PCI/msi-howto.rst | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/Documentation/PCI/msi-howto.rst b/Documentation/PCI/msi-howto.rst index aa2046af69f7d..8ae461e97c54e 100644 --- a/Documentation/PCI/msi-howto.rst +++ b/Documentation/PCI/msi-howto.rst @@ -285,3 +285,13 @@ to bridges between the PCI root and the device, MSIs are disabled. It is also worth checking the device driver to see whether it supports MSIs. For example, it may contain calls to pci_alloc_irq_vectors() with the PCI_IRQ_MSI or PCI_IRQ_MSIX flags. + + +List of device drivers MSI(-X) APIs +=================================== + +The PCI/MSI subystem has a dedicated C file for its exported device driver +APIs — `drivers/pci/msi/api.c`. The following functions are exported: + +.. kernel-doc:: drivers/pci/msi/api.c + :export: -- GitLab