The following reply was made to PR bin/160581; it has been noted by GNATS.
From: Garrett Cooper <gcoo...@ixsystems.com>
To: Mark <mark...@gmail.com>
Cc: bug-follo...@freebsd.org
Subject: Re: bin/160581: mfiutil(8) doesn't properly detect dead battery
with mfiutil show battery
Date: Sat, 10 Sep 2011 17:34:19 -0700 (PDT)
On Sat, 10 Sep 2011, Mark wrote:
> Hi Garrett,
>
> It looks like mfi(4) is missing a mask or several for the fw_status
> field when it tries to grab info about the battery backup. Maybe the
> attached patch can help a bit in figuring out what mfiutil is
> ignoring. I don't know if there's a publicly available datasheet for
> the firmware; I couldn't find it last time I tried. Maybe jhb@ has
> access to one. There's nothing useful in LSI's FreeBSD or Linux
> drivers - probably the opcodes and masks are just hardcoded into
> MegaCLI.
>
> If there's no way to figure out the masks from a datasheet, it'll
> probably be necessary to disassemble MegaCLI or something. I can try
> and figure it out, but I don't have access to a machine with an LSI
> controller right now, so it'd be tricky. =(
Hi Mark,
That's exactly what I tried before, but didn't include in my PR
email. Here's what I got:
$ sudo mfiutil show battery
mfi0: Battery State:
Manufacture Date: 9/19/2009
Serial Number: 1022
Manufacturer: LS1111001B
Model: 3598301
Chemistry: LION
Design Capacity: 1215 mAh
Full Charge Capacity: 417 mAh
Current Capacity: 415 mAh
Charge Cycles: 58
Current Charge: 100%
Design Voltage: 3700 mV
Current Voltage: 4049 mV
Temperature: 43 C
Status:Firmware status: 3072 <-- HERE
normal
LSI's copy of the driver is unfortunately unhelpful here, and I
tried ktrace'ing/truss'ing the driver to no avail. I guess the next step
is to hack the driver and dump the ioctl output sent via MegaCLI
(shouldn't be too hard).
Thanks!
-Garrett
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