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Differential D56097

uart/pci: always disable MSI for generic devices
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Authored by royger on Mar 26 2026, 8:26 PM.
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marcel
imp
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rGc562c81e315c: uart/pci: always disable MSI for generic devices
Summary

The generic device pci_id structure in uart_pci_probe() already has
PCI_NO_MSI appended to it's flags, however that information is not
propagated into uart_pci_attach().

Assume that any device that doesn't match the known IDs is a generic UART
device, and hence prevent the usage of MSIs.

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rG FreeBSD src repository
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Event Timeline

royger requested review of this revision.Mar 26 2026, 8:26 PM
royger created this revision.
imp accepted this revision.Mar 27 2026, 3:24 AM
This revision is now accepted and ready to land.Mar 27 2026, 3:24 AM
Closed by commit rGc562c81e315c: uart/pci: always disable MSI for generic devices (authored by royger). · Explain WhyMar 27 2026, 8:34 AM
This revision was automatically updated to reflect the committed changes.
royger added a commit: rGc562c81e315c: uart/pci: always disable MSI for generic devices.

Revision Contents
Changeset List

PathSize
sys/
dev/
uart/
3 lines

Diff 174372

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sys/dev/uart/uart_bus_pci.c

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