Comment 0 for bug 2022354

Let's say you launch a Xen-based EC2 instance with enhanced networking, then under kernel-5.19 you'll not see anything under

$ ls /sys/class/net/ens3/device/msi_irqs/

This can be fixed by backporting
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=335b4223466dd75f9f3ea4918187afbadd22e5c8
(It got already backported to 6.1 and 6.3)

With this patch applied, you'll correctly see the sysfs files:

$ ls /sys/class/net/ens3/device/msi_irqs/
690 691 692 693 694 695 696 697 698