CONFIG_PCI_ENDPOINT_MSI_DOORBELL: PCI Endpoint MSI Doorbell Support

General informations

The Linux kernel configuration item CONFIG_PCI_ENDPOINT_MSI_DOORBELL:

• prompt: PCI Endpoint MSI Doorbell Support
• type: bool
• depends on: CONFIG_PCI_ENDPOINT && CONFIG_GENERIC_MSI_IRQ
• defined in drivers/pci/endpoint/Kconfig
• found in Linux kernels: 6.17-rc+HEAD

Help text

This enables the EP's MSI interrupt controller to function as a doorbell. The RC can trigger doorbell in EP by writing data to a dedicated BAR, which the EP maps to the controller's message address.

Hardware

LKDDb

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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