From owner-freebsd-stable@freebsd.org  Thu Oct 22 19:07:48 2015
Return-Path: <owner-freebsd-stable@freebsd.org>
Delivered-To: freebsd-stable@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 66CCCA1C082
 for <freebsd-stable@mailman.ysv.freebsd.org>;
 Thu, 22 Oct 2015 19:07:48 +0000 (UTC) (envelope-from slw@zxy.spb.ru)
Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org
 [IPv6:2001:1900:2254:206a::50:5])
 by mx1.freebsd.org (Postfix) with ESMTP id 4C0A2164E
 for <freebsd-stable@freebsd.org>; Thu, 22 Oct 2015 19:07:48 +0000 (UTC)
 (envelope-from slw@zxy.spb.ru)
Received: by mailman.ysv.freebsd.org (Postfix)
 id 49045A1C081; Thu, 22 Oct 2015 19:07:48 +0000 (UTC)
Delivered-To: stable@mailman.ysv.freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by mailman.ysv.freebsd.org (Postfix) with ESMTP id 47AF7A1C080
 for <stable@mailman.ysv.freebsd.org>; Thu, 22 Oct 2015 19:07:48 +0000 (UTC)
 (envelope-from slw@zxy.spb.ru)
Received: from zxy.spb.ru (zxy.spb.ru [195.70.199.98])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id EA7E9164D
 for <stable@freebsd.org>; Thu, 22 Oct 2015 19:07:47 +0000 (UTC)
 (envelope-from slw@zxy.spb.ru)
Received: from slw by zxy.spb.ru with local (Exim 4.84 (FreeBSD))
 (envelope-from <slw@zxy.spb.ru>)
 id 1ZpLDC-000CG8-2x; Thu, 22 Oct 2015 22:07:42 +0300
Date: Thu, 22 Oct 2015 22:07:42 +0300
From: Slawa Olhovchenkov <slw@zxy.spb.ru>
To: Luigi Rizzo <rizzo@iet.unipi.it>
Cc: Adrian Chadd <adrian.chadd@gmail.com>,
 "stable@freebsd.org" <stable@freebsd.org>
Subject: Re: 82576 + NETMAP + VLAN
Message-ID: <20151022190741.GG6469@zxy.spb.ru>
References: <20151018185639.GF42243@zxy.spb.ru>
 <CAJ-VmonO8ok=twgBGVMBiAs=AyRs4LUoDX6pGBtWStvndGKGzg@mail.gmail.com>
 <20151018210049.GT6469@zxy.spb.ru>
 <CAJ-Vmonfxz5vjVHqp6gS97mhnU10SLgohRA35O8MQLUzHvcsrw@mail.gmail.com>
 <20151022163519.GF6469@zxy.spb.ru>
 <CAJ-Vmok56uBJgJh4Bwr7yjNwsigU=ySBJ08H26caODAAxXNLRA@mail.gmail.com>
 <CA+hQ2+g0ggpS+E5nOpON66efs7cwsed=NvaKa=mzsg6FycGhiQ@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <CA+hQ2+g0ggpS+E5nOpON66efs7cwsed=NvaKa=mzsg6FycGhiQ@mail.gmail.com>
User-Agent: Mutt/1.5.23 (2014-03-12)
X-SA-Exim-Connect-IP: <locally generated>
X-SA-Exim-Mail-From: slw@zxy.spb.ru
X-SA-Exim-Scanned: No (on zxy.spb.ru); SAEximRunCond expanded to false
X-BeenThere: freebsd-stable@freebsd.org
X-Mailman-Version: 2.1.20
Precedence: list
List-Id: Production branch of FreeBSD source code <freebsd-stable.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-stable>, 
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable/>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 22 Oct 2015 19:07:48 -0000

On Thu, Oct 22, 2015 at 11:24:53AM -0700, Luigi Rizzo wrote:

> On Thu, Oct 22, 2015 at 11:12 AM, Adrian Chadd <adrian.chadd@gmail.com> wrote:
> > On 22 October 2015 at 09:35, Slawa Olhovchenkov <slw@zxy.spb.ru> wrote:
> >> On Sun, Oct 18, 2015 at 07:45:52PM -0700, Adrian Chadd wrote:
> >>
> >>> Heh, file a bug with luigi; it should be defined better inside netmap itself.
> >>
> >> I am CC: luigi.
> >>
> >> Next question: do kevent RX/TX sync?
> >> In my setup I am need to manual NIOCTXSYNC/NIOCRXSYNC.
> >
> > Hi,
> >
> > Nope. kqueue() doesn't do the implicit sync like poll() does; it's
> > just the notification path.
> 
> actually not. When the file descriptor is registered there
> is an implicit sync, and there is another one when an event
> is posted for the file descriptor.
> 
> unless there are bugs, of course.

I am register file descriptor in kevent with
EV_SET(ke+used, thr->outside.fd, EVFILT_READ, EV_ADD | EV_ENABLE | EV_CLEAR, 0, 0, &thr->outside);

after got event in kevent(kq, NULL, 0, ke, max_event, NULL) I am don't see anything in rxring.
if I do ioctl(fd, NIOCRXSYNC, NULL) after kevent I am see received packets in rxring, but nothing transmited.
if I do ioctl(fd, NIOCTXSYNC, NULL) before kevent -- packets transmited.

I am try this in VirtualBox VM.

Also, can you look in this thread about VLAN processing?