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Date:      Sat, 09 May 2020 19:32:47 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 246279] cam / ciss driver unable to see more than 48(?) physical drives per controller
Message-ID:  <bug-246279-227-PjlkEUTfOX@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-246279-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-246279-227@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D246279

--- Comment #7 from Peter Eriksson <pen@lysator.liu.se> ---
The current code probably works reasonable well for cases where the control=
ler
is being used in RAID mode (where it works with logical LUNs).=20

Well, except that it probably fails to detect the SES devices on the D6020
cabinets.

But when used as "dumb" HBA with more physical drives than a certain contro=
ller
handles logical devices (64 in my case for the H241 controller) it will alw=
ays
do the wrong thing.=20

And since it starts numbering physical targets 16 (probably since the
controller signals "0" as supported logical luns - since it's a HBA!) and t=
hen
the driver code uses a compile-time-default of 16 (intended for really old
controllers) things become strange... So 64-16 =3D 48.

Okidoki. Time for some code hacking :-)

--=20
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