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Date:      Tue, 4 Dec 2012 14:49:52 -0700
From:      Warner Losh <imp@bsdimp.com>
To:        Jeff Roberson <jroberson@jroberson.net>
Cc:        current@freebsd.org
Subject:   Re: Call for testers, users with scsi cards
Message-ID:  <C442208D-42DF-4986-A88E-A7E404F3CCA3@bsdimp.com>
In-Reply-To: <alpine.BSF.2.00.1212041131340.4081@desktop>
References:  <alpine.BSF.2.00.1212041131340.4081@desktop>

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On Dec 4, 2012, at 2:36 PM, Jeff Roberson wrote:

> http://people.freebsd.org/~jeff/loadccb.diff
>=20
> This patch consolidates all of the functions that map cam control =
blocks for DMA into one central function.  This change is a precursor to =
adding new features to the I/O stack.  It is mostly mechanical.  If you =
are running current on a raid or scsi card, especially if it is a lesser =
used one, I would really like you to apply this patch and report back =
any problems.  If it works you should notice nothing.  If it doesn't =
work you will probably panic immediately on I/O or otherwise no I/O will =
happen.

I haven't tested it yet.  My only comment from reading it though would =
be to make subr_busdma.c be dependent on cam, since it can only used =
from cam.  We've grown sloppy about noting these dependencies in the =
tree...

Warner




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