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Date:      Wed, 29 Feb 2012 00:35:23 +0400
From:      Slawa Olhovchenkov <slw@zxy.spb.ru>
To:        Luigi Rizzo <rizzo@iet.unipi.it>
Cc:        svn-src-head@freebsd.org, Luigi Rizzo <luigi@freebsd.org>, src-committers@freebsd.org, svn-src-all@freebsd.org, Ben Kaduk <minimarmot@gmail.com>
Subject:   Re: svn commit: r232238 - in head: share/man/man4 sys/dev/e1000 sys/dev/ixgbe sys/dev/netmap sys/dev/re sys/net tools/tools/netmap
Message-ID:  <20120228203523.GB97848@zxy.spb.ru>
In-Reply-To: <20120228073122.GC57270@onelab2.iet.unipi.it>
References:  <201202271905.q1RJ52Se032771@svn.freebsd.org> <CAK2BMK4ncw9yyHwRQJfzT5=mTwn5p2neny1rbZF9sBM-q3zvJw@mail.gmail.com> <20120228073122.GC57270@onelab2.iet.unipi.it>

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On Tue, Feb 28, 2012 at 08:31:22AM +0100, Luigi Rizzo wrote:

> On Mon, Feb 27, 2012 at 07:05:45PM -0500, Ben Kaduk wrote:
> ...
> > > ?1. add support for devices with different number of rx and tx queues;
> > >
> > > ?2. add better support for zero-copy operation, adding an extra field
> > > ? ? to the netmap ring to indicate how many buffers we have already processed
> > > ? ? but not yet released (with help from Eddie Kohler);
> > >
> > > ?3. The two changes above unfortunately require an API change, so while
> > > ? ? at it add a version field and some spares to the ioctl() argument
> > > ? ? to help detect mismatches.
> > 
> > Is it worth bumping __FreeBSD_version?
> 
> I don't think it is necessary.
> There is basically no code that uses the netmap API except for
> the examples in tools/tools/netmap, and i now have a NETMAP_API macro

no code in *FreeBSD base system*, yes?
because I am write tools uses the netmap API now.

> that defines the version without the need for using __FreeBSD_version



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