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Date: Wed, 8 Feb 2012 02:03:25 +0400
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Marius Strobl <marius@alchemy.franken.de>
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Cc: freebsd-scsi@freebsd.org
Subject: Re: Trouble with LSI SAS1078
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On Tue, Feb 07, 2012 at 10:32:53PM +0100, Marius Strobl wrote:

> On Wed, Feb 08, 2012 at 12:57:50AM +0400, Slawa Olhovchenkov wrote:
> > On Tue, Feb 07, 2012 at 09:42:55PM +0100, Marius Strobl wrote:
> > 
> > > > > > I can test you patch at this machine (currently installed on USB HDD).
> > > > > 
> > > > > Okay, could please give the following patch a try?
> > > > > http://people.freebsd.org/~marius/mpt_sas1078.diff
> > > > 
> > > > On first look its working!
> > > > Many strange messages in dmesg (Error 6, Unretryable error; Unexpected
> > > > Bus Free; etc). Delay on load driver (kern.cam.scsi_delay may be?).
> > > > 
> > > > I can read first 100 secrors from da1 and da2.
> > > > 
> > > 
> > > Some delay of maybe 2-4 seconds when mpt(4) is attaching is normal.
> > 
> > No, delay is 12.40s.
> 
> Hrm, could you please change the SAS1078 part in mpt_hard_reset() of
> mpt.c to look like the following, i.e. add the printf()'s:
>         if (mpt->is_1078) {
>                 printf("%s: reg before=0x%x\n", __func__,
>                      mpt_read(mpt, MPT_OFFSET_RESET_1078));
>                 mpt_write(mpt, MPT_OFFSET_RESET_1078, 0x07);
>                 DELAY(1000);
>                 printf("%s: reg after=0x%x\n", __func__,
>                      mpt_read(mpt, MPT_OFFSET_RESET_1078));
>                 return;
>         }
> 
> and report the values printed during attach of mpt(4) with the above
> compiled in?

don't print anything. and i don't see 'hard reset' message in verbose boot.

> Okay, so apart from the lengthy delay during attach it looks good so
> far. Do you have any problems using the disks?

I didn't try realy using.