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Date:      Wed, 20 Nov 2002 11:52:26 -0800
From:      Chuck Tuffli <chuck_tuffli@agilent.com>
To:        "Kenneth D. Merry" <ken@kdm.org>
Cc:        "Long, Scott" <Scott_Long@adaptec.com>, freebsd-scsi@FreeBSD.ORG
Subject:   Re: SIM as loadable module?
Message-ID:  <20021120195226.GA35733@cre85086tuf.rose.agilent.com>
In-Reply-To: <20021118221606.A36763@panzer.kdm.org>
References:  <6100BCEB85F8E244959C756C04E0EDD161CB7F@otcexc01.otc.adaptec.com> <20021118221606.A36763@panzer.kdm.org>

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On Mon, Nov 18, 2002 at 10:16:06PM -0700, Kenneth D. Merry wrote:
> On Mon, Nov 18, 2002 at 23:47:13 -0500, Long, Scott wrote:
> 
> One question is whether the card gets probed when you statically compile
> the driver into the kernel.

I haven't tried this yet. Maybe the question I'm asking is does the
CAM automatically scan new buses or is a scan initiated by camcontrol
for loadable modules.

> Another is, what happens when you rescan that bus?  (camcontrol devlist -v
> should show which SCSI bus is allocated to your driver.)

smallrocks# camcontrol devlist -v
scbus0 on tach0 bus 0:
<  >                               at scbus0 target -1 lun -1 ()
scbus1 on tach1 bus 0:
<  >                               at scbus1 target -1 lun -1 ()
scbus-1 on xpt0 bus 0:
<  >                               at scbus-1 target -1 lun -1 (xpt0)

> A path inquiry gets sent out when you register the bus
> (xpt_bus_register()), so that's probably what you're seeing.
> 
> > I'm impressed that Agilent is doing a FreeBSD driver for the Tachyon.
> > Will it be fully open source or half open/half closed?  Also, will it
> > do fabrics or just AL?
> 
> Yep, it'll be nice to have a Tachyon driver.

I'll see what I can do. Releasing a binary only driver is probably a
no brainer. Half open/closed might be possible too if people were
interested. All open could happen too, but it would be a separate
effort from what I'm doing now.

-- 
Chuck Tuffli    <chuck_tuffli AT NO_SPAM agilent DOT com>
Agilent Technologies, Storage and Networking

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