kern/172864: [mfi] mfip does not notice new drives

[Mark Johnston]

On Thu, Oct 25, 2012 at 05:18:01PM -0400, Ryan Stone wrote:
> On Thu, Oct 18, 2012 at 10:50 PM, Mark Johnston <markjdb at gmail.com> wrote:
> > The following reply was made to PR kern/172864; it has been noted by GNATS.
> >
> > From: Mark Johnston <markjdb at gmail.com>
> > To: bug-followup at FreeBSD.org, kpneal at pobox.com
> > Cc:
> > Subject: Re: kern/172864: [mfi] mfip does not notice new drives
> > Date: Thu, 18 Oct 2012 22:48:22 -0400
> >
> >  This is because mfi(4) currently doesn't notify CAM when it receives a
> >  drive insertion/removal event from the hardware. I fixed this in the
> >  tree at work; I'll post it to freebsd-scsi when I have access to it
> >  again, probably in a couple of months.
> >
> >  FWIW, running "camcontrol rescan all" should have also caused the
> >  passthrough devices to appear, so that's another workaround.
> 
> I believe that this is the patch that Mark refers to:
> http://people.freebsd.org/~rstone/patches/mfi_hotplug.diff

That's the one. It'll have to be reworked a bit in light of the changes
made in r233711, but I think the changes to mfi_cam.c are still ok.