Trouble with LSI SAS1078

[Marius Strobl]

On Wed, Feb 08, 2012 at 02:03:25AM +0400, Slawa Olhovchenkov wrote:
> 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.

The clutter in the verbose dmesg might be from an enclosure that
either only fully comes up when actually booting from a disk
attached to the SAS1078 or isn't properly supported by ses(4),
delaying the path inquiry. I'd suggest to try to boot from disk
and to leave out the ses(4) driver.

Marius