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Date: Thu, 20 Feb 2003 10:02:09 -0600 (CST)
From: Mike Silbersack <silby@silby.com>
To: Andrew Gallatin <gallatin@cs.duke.edu>
Cc: Sam Leffler <sam@errno.com>,
	Scott Long <scott_long@btc.adaptec.com>, src-committers@FreeBSD.org,
	cvs-src@FreeBSD.org, cvs-all@FreeBSD.org
Subject: Re: cvs commit: src/sys/dev/aac aac.c aac_pci.c
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On Thu, 20 Feb 2003, Andrew Gallatin wrote:

> I'm not the most familiar person with the busdma interface.. but..
> at least for network drivers, bus_dmamem_alloc() is typically called
> for descriptor lists, etc.  Eg, data shared with the nic, and is done
> at attach time, right?  Its never called from the transmit or recv
> routines.
>
> Drew

I noticed that as well when I took a look, so it does appear that
bus_dmamem* may be useable with much locking.  Still, someone should
definitely review those routines and put in appropriate comments on
locking requirements / etc.

Mike "Silby" Silbersack

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