lp:~canonical-kernel/ubuntu/+source/linux-aws/+git/resolute

Author: Leah Goldberg
Author Date: 2026-04-06 14:59:14 UTC

UBUNTU: [Config] Enable ENA_ETHERNET as built-in to avoid race

BugLink: https://bugs.launchpad.net/bugs/2144694

Currently, cloud-init may fail to detect the EC2 datasource during
the local init stage if the kernel hasn’t initialized the NIC in time.
This can prevent metadata fetching and block SSH on first boot. Making
ENA_ETHERNET built-in allows instances to boot reliably. We can revisit
making ENA modular once the underlying cloud-init race is resolved.

Added CONFIG_ENA_ETHERNET is `y` in debian.aws/config/annotations.

Signed-off-by: Leah Goldberg <leah.goldberg@canonical.com>
Acked-by: Gabriela Bittencourt <gabriela.bittencourt@canonical.com>
Acked-by: Vinicius Peixoto <vinicius.peixoto@canonical.com>
Signed-off-by: Gabriela Bittencourt <gabriela.bittencourt@canonical.com>

Author: Philip Cox
Author Date: 2024-10-17 14:48:31 UTC

UBUNTU SAUCE: (no-up) linux/ena: Add NUMA aware interrupt allocation

BugLink: https://bugs.launchpad.net/bugs/2085159

This patch implements an improved allocation strategy for IO interrupts,
taking into account the physical device NUMA node.
Also, it replaces the use of a deprecated API (irq_set_affinity_hint)
which enforces affinity with a newer API (irq_update_affinity_hint)
which only hints at the preferred CPU mask.

Signed-off-by: Osama Abboud <osamaabb@amazon.com>
(content derived from https://github.com/amzn/amzn-drivers/commit/ed7754cdf6ca0d4fb3d76906abc17718cc3ffa23)
Signed-off-by: Philip Cox <philip.cox@canonical.com>
Acked-by: Guoqing Jiang <guoqing.jiang@canonical.com>
Acked-by: Jian Hui Lee <jianhui.lee@canonical.com>