Bug 1068 - Interrupt message store (IMS) out-of-tree kernel patches
Summary: Interrupt message store (IMS) out-of-tree kernel patches
Status: IN_PROGRESS
Alias: None
Product: ANCK 5.10 Dev
Classification: ANCK
Component: drivers (show other bugs) drivers
Version: unspecified
Hardware: All Linux
: P3-Medium S3-normal
Target Milestone: ---
Assignee: xunlei
QA Contact: shuming
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2022-05-05 14:11 UTC by xiaochenshen
Modified: 2022-05-05 16:58 UTC (History)
1 user (show)

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Description xiaochenshen intel_group 2022-05-05 14:11:57 UTC 
Interrupt message store (IMS) provides support for device specific MSI implementations for devices which have their own resource management and interrupt chip. This patch set covers the out-of-tree backporting kernel patches from intel-github, 5.15 BKC. 

The total patch number is 30+ now and includes:
1. X86 specific preparation for device MSI.
2. Generic device MSI infrastructure.
3. Interrupt Message Store (IMS) irq domain/chip implementation for device array.
4. Add platform check for sub-device irq domain.
5. Enable dynamic allocation of MSI-X interrupts.