[Bug 71941] LSI SAS2116 does not detect disks

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=71941

kernel-bugzilla.20.drkshadow@spamgourmet.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from kernel-bugzilla.20.drkshadow@spamgourmet.com ---
The issue turned out to be hardware: Some combination of flashing the firmware
and BIOS caused all disks to register.

I did get the 18.00.00.00 driver to compile under 3.13.6, however it gave me
its own problems: as I attempted to dd if="$f" of="$f" bs=65536 across every
disk in the system simultaneously, the system would, after 20-30 minutes, lock
solid. (This process proceeded fine if of=/dev/null; I'm doing this to find
disks that I know have sector errors.) I have no dmesg output. Further,
modprobe -r was _very_ slow on this driver, eventually printing to dmesg a
trace including "warn_slowpath_fmt".

Attached is a basic patch to get the new LSI driver to compile under 3.13.6,
but no guarantees as to the quality of anything.

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