Re: mptsas problem

[Wakko Warner <wakko@animx.eu.org>]

Moore, Eric wrote:
> On Sunday, April 13, 2008 2:49 PM, Wakko Warner wrote:
> > > depth of 64 it may be queueing internally as well.  You could try
> > > lowering the lsi queue to 31 and seeing if it makes a difference.
> > 
> > IIRC, someone said the LSIs does queue in firmware.
> 
> It was probably me that told you that.   Anyways,  the lsiutil 100
> output you sent me last week indicated youre controller has NCQ
> disabled.     You need new firmware and controller chip rev in order to
> support NCQ.  You should contact LSI support to obtain which versions of
> firmware and chip rev that is required.   Meanwhile your controller will
> queuing commands for SATA, only sending one command across the wire at a
> time.   For SAS, you will not have this issue.

Does "chip rev" mean software/firmware or an actual chip?  Is there anyway
the driver can see this and set the queue_depth to 1?

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