Contributions to the Linux Kernel

Martin Karsten

IRQ Suspension

I have worked towards a proper kernel patch that adds an IRQ suspension mechanism to the Linux kernel, based on the idea in our Sigmetrics 2024 paper. I have made various small contributions during this work:

mlx4: Add support for netdev-genl API 1/3 (Tested-by)
mlx4: Add support for netdev-genl API 2/3 (Tested-by)
mlx4: Add support for netdev-genl API 3/3 (Tested-by)
eventpoll: Annotate data-race of busy_poll_usecs 1/1 (Author)
Add support for per-NAPI config via netlink 5/9 (Co-developed-by)

The resulting patch has been accepted for the Linux kernel:

Suspend IRQs during application busy periods (Patches 1-4: Author; Patches 5-6: Co-developed-by)

Previous submissions:

Patch v8
Patch v7
Patch v6
Patch v5
Patch v4
Patch v3
Patch v2
Patch v1
RFC

last updated Nov 11, 2024 - Martin Karsten