[Bug 289748] ahci driver not attached on New supermicro board H13SSW in at least 14.3 and CURRENT

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 289748] ahci driver not attached on New supermicro board H13SSW starting from atlast 14.3 to CURRENT"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 03 Oct 2025 16:07:38 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=289748

--- Comment #14 from John Baldwin <jhb@FreeBSD.org> ---
Probably the ahci driver needs to not treat the failure to bus_alloc_resource
the BAR for the MSI-X table as fatal, and instead just fallback to using MSI or
INTx in that case instead of reporting attach failure.  I'm attaching an
alternate patch to try.  It also uses stock methods to query the BAR IDs.

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