Skip site navigation (1)Skip section navigation (2)
Date:      Sat, 22 Sep 2001 11:53:02 -0700 (PDT)
From:      wpaul@FreeBSD.ORG (Bill Paul)
To:        luigi@info.iet.unipi.it (Luigi Rizzo)
Cc:        gallatin@cs.duke.edu, hackers@freebsd.org
Subject:   Re: any reason to use m_devget in the "dc" driver ?
Message-ID:  <20010922185302.7E61A37B40F@hub.freebsd.org>
In-Reply-To: <200109220558.HAA64949@info.iet.unipi.it> from Luigi Rizzo at "Sep 22, 2001 07:58:25 am"

next in thread | previous in thread | raw e-mail | index | archive | help
> I probably missed some emails ?

And you can't go back and read them from the archives because...?

> In any case i was only concerned about the additional copy
> done by m_devget when the controller can already DMA into
> an mbuf, and there are no alignment constraints.

I don't know what you're talking about. There are no cases where
we use m_devget() when there *aren't* any alignment constraints.
Show us exactly what line of code you're talking about please,
otherwise drop this topic, because it's been discussed to death
and I'm tired of somebody trying to argue it with me every few
months.

-Bill


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20010922185302.7E61A37B40F>