From owner-freebsd-net@freebsd.org  Mon Jan 23 20:09:02 2017
Return-Path: <owner-freebsd-net@freebsd.org>
Delivered-To: freebsd-net@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 8ED64CBE9C7
 for <freebsd-net@mailman.ysv.freebsd.org>;
 Mon, 23 Jan 2017 20:09:02 +0000 (UTC)
 (envelope-from sunxiaoye07@gmail.com)
Received: from mail-io0-x236.google.com (mail-io0-x236.google.com
 [IPv6:2607:f8b0:4001:c06::236])
 (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 596D2BCE
 for <freebsd-net@freebsd.org>; Mon, 23 Jan 2017 20:09:02 +0000 (UTC)
 (envelope-from sunxiaoye07@gmail.com)
Received: by mail-io0-x236.google.com with SMTP id v96so55899880ioi.0
 for <freebsd-net@freebsd.org>; Mon, 23 Jan 2017 12:09:02 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025;
 h=mime-version:sender:from:date:message-id:subject:to;
 bh=6w0xhGBnA1heVstYZ/gM+M2GFzWyywAOUBBUithVI+Q=;
 b=MTIlNkWAfRYDx92Z8HhqwFe5uSHRiCLiUxfwMJsPQ7gEHR4e2zjRHzOEXdA/kKU+gv
 Mo2fZgmpQcRA+PYaKrkxCqN5EDr5J25/bLAPKeY9DtQTrjXjDFZeNaIN4ixRY5/l2fsq
 ZP36UL2IzjsAVxfc7xeFo3yzwBVbszytel0RULAqxFNEAUT+oE4vru3b418zQ8kJGIU5
 c7wTiqR5SzeSSzMVhVST7LnzuFo5FJrVlswIz+/CZASinXnb72sRQmLWNUSEERP9M902
 7Msul+vZX+uat2SM2zk7tODmuMD1IW2rHAoUuqABlU/DdSHzKzuft923zbGaQ0kSQkbQ
 jIJg==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=1e100.net; s=20161025;
 h=x-gm-message-state:mime-version:sender:from:date:message-id:subject
 :to; bh=6w0xhGBnA1heVstYZ/gM+M2GFzWyywAOUBBUithVI+Q=;
 b=SHBmw/8n0iQ9RiXTw4YwnKeeobIch55jb60Ifp/Zr3JM9C/nvPdU3TEbs3kSkE98LW
 3g2COowjLLAtmaHbYCAavfefd0jSF5Ig8aPgZXvkbR4/UbURe/j60QqET/TjxvKoOGfl
 lZjPp4Vcj+wP1nw0Ej+RM8xFuB+l6o21sTgi5FdFpeVuTRWGNxG5zD2JfDRmWisEDRsP
 aH/mKvt6/yklZR57OeMGL4vPmip87d3lGQ3zZMbRUIkRh6sAmIGJukqLj4MaAURo9ZA/
 qlT5xde47iic46H5LJDYSWHZxpEHsXjF2syx+YNlyjICp322318vLvdoH3xZN+u4tsnI
 0n3A==
X-Gm-Message-State: AIkVDXKOyePu3dKXnsqLMsvKkyn/ERhdo177wEceZh4j1y5ZDhO+x+9JGNMvVSwe+gdtTmBizV9wBkpm/cKt3A==
X-Received: by 10.107.136.195 with SMTP id s64mr23346752ioi.51.1485202141619; 
 Mon, 23 Jan 2017 12:09:01 -0800 (PST)
MIME-Version: 1.0
Sender: sunxiaoye07@gmail.com
Received: by 10.64.213.98 with HTTP; Mon, 23 Jan 2017 12:09:01 -0800 (PST)
From: Xiaoye Sun <Xiaoye.Sun@rice.edu>
Date: Mon, 23 Jan 2017 14:09:01 -0600
X-Google-Sender-Auth: BL0H9Kgq8fR8BMCCole6xxP5Siw
Message-ID: <CAJnByzg2PspHhvFyDWpYfXZWNGTmmAJ992jMa=FPwAfM-LEiJA@mail.gmail.com>
Subject: High priority for the tx queue in netmap
To: FreeBSD Net <freebsd-net@freebsd.org>
Content-Type: text/plain; charset=UTF-8
X-Content-Filtered-By: Mailman/MimeDel 2.1.23
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.23
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-net/>
List-Post: <mailto:freebsd-net@freebsd.org>
List-Help: <mailto:freebsd-net-request@freebsd.org?subject=help>
List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 23 Jan 2017 20:09:02 -0000

Hi,

In my application, there are multiple tx queues in the OS, and the netmap
program uses one tx queue. I wondering if I can give the netmap tx queue
higher priority so that the NIC always sends the packets from this queue if
netmap put any packet to it.

I am using Linux 3.16.

Thanks!

Best,
Xiaoye