svn commit: r287876 - in projects/iosched/sys/cam: . ata scsi

[Warner Losh]

This isn't even in -current yet, but this will work in 10.x. It's
dependent, at the moment,
on the I/O scheduler work I've done in this project branch. There's nothing
intrinsic about
that.

I'm not sure I understand your comment about Linux or the self-booting
stuff. The new
firmware for the M500's that has working NCQ trim has existed for less than
a week...

Warner

On Thu, Sep 17, 2015 at 6:45 AM, Bruce Simpson <bms at fastmail.net> wrote:

> Warner,
>
> Is it going to be possible to MFC the NCQ trim fixes, or is this dependent
> on post 10.x work?
>
> It took a longgggg time for Linux to catch up with Crucial's firmware
> patch. [1]
>
> cheers
> Bruce
>
> [1] Which, by the way, is an excellent example of vendors doing the right
> thing for a change, as the patch was delivered as a Linux-based
> self-booting image (ISO/USB/etc).
>
> On 16/09/15 23:15, Warner Losh wrote:
>
>> Log:
>>    Commit the post-BSDcan level (and a little more) iosched work.
>>
> ...
>
> +               /*
>> +                * Crucial Mxxx SSDs
>> +                * NCQ Trim doesn't work, but only on MU01 firmware
>> +                */
>> +               { T_DIRECT, SIP_MEDIA_FIXED, "*", "Crucial CT*M550*",
>> "MU01" },
>> +               /*quirks*/ADA_Q_NCQ_TRIM_BROKEN
>> +       },
>>
>
>
>