#9098: Haiku Alpha/Nightlies fails to show slave drives on Asus 990FX with AHCI
enabled.
----------------------------+-----------------------------
Reporter: mpxlbs | Owner: marcusoverhagen
Type: bug | Status: new
Priority: high | Milestone: Unscheduled
Component: Drivers/Disk | Version: R1/Development
Resolution: | Keywords:
Blocked By: | Blocking:
Has a Patch: 0 | Platform: x86
----------------------------+-----------------------------
Comment (by kallisti5):
I wonder if this is related to FIS Based Switching? It looks like some
modern AHCI controllers only use one port and have multiple devices
switched between them... might explain the random "single drive" issues as
well.
https://www.chipestimate.com/tech-talks/2013/01/22/Synopsys-Understanding-
SATA-FIS-Based-Switching
Out AHCI driver has almost 0 FBS related code. I added a FBS cap check
via hrev50038. It would be interesting to compare that state on non-
working vs working AHCI implementations.
--
Ticket URL: <https://dev.haiku-os.org/ticket/9098#comment:14>
Haiku <https://dev.haiku-os.org>
Haiku - the operating system.
