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Osvaldo Janeri Filho
10409ee40b
ARI changes RID interpretation only for the device on a downstream
port's secondary bus. pcib_xlate_ari() applied that translation to
every config access through an ARI-enabled bridge, including cycles
forwarded to a subordinate bus.
A non-zero slot on a subordinate bus then panics an INVARIANTS kernel
and is misrouted otherwise. Translate only when the access targets
this bridge's secondary bus.
Reviewed by: kib, jhb
Fixes: 55d3ea1731 ("Add support for PCIe ARI")
Sponsored by: AMD
Differential Revision: https://reviews.freebsd.org/D60033