Public bug reported:
Description: s390/pci: fix allocation of more than 1 MSI IRQ
Symptom:
When using an PCI adapter that provides more than 1 MSI interrupt, the
implementation for s390x would still only allocate one such interrupt.
Problem:
When setting up MSI interrupts on s390x, the PCI implementation would only
setup a single IRQ descriptor for one MSI descriptor. This works for PCI
adapters that support MSI-X, but not for MSI.
Solution:
Relax this one-to-one relationship between IRQ descriptors on s390x and MSI
descriptors; make it possible to setup multiple IRQ descriptors for a single
MSI descriptor.
Upstream-IDs:
5fd11b96b43708f2f6e3964412c301c1bd20ec0f
ab42fcb511fd9d241bbab7cc3ca04e34e9fc0666
Component: kernel
** Affects: linux (Ubuntu)
Importance: Undecided
Assignee: Skipper Bug Screeners (skipper-screen-team)
Status: New
** Tags: architecture-s39064 bugnameltc-214778 severity-high
targetmilestone-inin---
** Tags added: architecture-s39064 bugnameltc-214778 severity-high
targetmilestone-inin---
** Changed in: ubuntu
Assignee: (unassigned) => Skipper Bug Screeners (skipper-screen-team)
** Package changed: ubuntu => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/2121145
Title:
[UBUNTU 24.04] s390/pci: fix allocation of more than 1 MSI IRQ
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