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Date:      Tue, 23 Apr 2013 12:08:30 +0530
From:      "Desai, Kashyap" <Kashyap.Desai@lsi.com>
To:        Gary Palmer <gpalmer@freebsd.org>, "kpneal@pobox.com" <kpneal@pobox.com>
Cc:        "freebsd-scsi@freebsd.org" <freebsd-scsi@freebsd.org>
Subject:   RE: New Driver for MegaRaid 6Gb/s and 12Gb/s Card
Message-ID:  <B2FD678A64EAAD45B089B123FDFC3ED760761F5249@inbmail01.lsi.com>
In-Reply-To: <20130419181631.GE96431@in-addr.com>
References:  <B2FD678A64EAAD45B089B123FDFC3ED75E70AC49E1@inbmail01.lsi.com> <1366236517.1499.31.camel@localhost> <B2FD678A64EAAD45B089B123FDFC3ED760761F4E25@inbmail01.lsi.com> <517004AE.7070409@gmail.com> <B2FD678A64EAAD45B089B123FDFC3ED760761F4FBE@inbmail01.lsi.com> <20130419161809.GA76332@neutralgood.org> <20130419181631.GE96431@in-addr.com>

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> -----Original Message-----
> From: Gary Palmer [mailto:gpalmer@freebsd.org]
> Sent: Friday, April 19, 2013 11:47 PM
> To: kpneal@pobox.com
> Cc: Desai, Kashyap; freebsd-scsi@freebsd.org
> Subject: Re: New Driver for MegaRaid 6Gb/s and 12Gb/s Card
>=20
> On Fri, Apr 19, 2013 at 12:18:09PM -0400, kpneal@pobox.com wrote:
> > On Fri, Apr 19, 2013 at 12:30:09PM +0530, Desai, Kashyap wrote:
> > >
> > >
> > > > -----Original Message-----
> > > > From: matt [mailto:sendtomatt@gmail.com]
> > > > Sent: Thursday, April 18, 2013 8:05 PM
> > > > To: Desai, Kashyap
> > > > Cc: sbruno@freebsd.org; freebsd-scsi@freebsd.org; Kenneth D.
> > > > Merry; McConnell, Stephen; jhb@freebsd.org
> > > > Subject: Re: New Driver for MegaRaid 6Gb/s and 12Gb/s Card
> > > >
> >
> > > > Would those only be supported by mfi, or by mrsas and mfi?
> > > > Is there already a mrsasutil being planned to replace mfiutil?
> > >
> > >
> > > New management interface will be expose by mrsas as "/dev/mrsasX".
> If mfiutil has flexibility to work on "/dev/mrsasX" instead of
> "/dev/mfiX" we can extend the same utility for mrsas.
> >
> > It would be confusing to have to use "mfi"util to control "mrsas"
> devices.
> >
> > At the least there needs to be a different name for the utility that
> > either reflects the /dev/ device name or otherwise applies to some
> > kind of name for the utility. A new "mrsasutil" utility would fit the
> > bill.  A combined mfi/mrsas utility would as well if it had a name
> > that is more generic but not too broad.
> >
> > mrutil? (MegaRaid ...)
> > lsiutil?
> >
> > I'm fresh out of other ideas for names, sorry.
>=20
> Make mrsasutil a hard link to mfiutil and then alter the code to DTRT
> depending on which link was used to call the program.  There is
> precedence for this in the tree already (maybe not for this kind of
> device management utility, but other bits)

To change "mfiutil" to work with "mrsas" driver is possible with few devcla=
ss changes in mfiutil along with other IOCTL code change, but it need signi=
ficant time to analyze mfiutil code.




>=20
> Gary





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