From owner-freebsd-net@FreeBSD.ORG  Wed Jan 28 08:00:25 2015
Return-Path: <owner-freebsd-net@FreeBSD.ORG>
Delivered-To: freebsd-net@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 26CF98CF
 for <freebsd-net@freebsd.org>; Wed, 28 Jan 2015 08:00:25 +0000 (UTC)
Received: from phabric-backend.isc.freebsd.org
 (phabric-backend.isc.freebsd.org [IPv6:2001:4f8:3:ffe0:406a:0:50:2])
 (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 0476BACE
 for <freebsd-net@freebsd.org>; Wed, 28 Jan 2015 08:00:25 +0000 (UTC)
Received: from phabric-backend.isc.freebsd.org
 (phabric-backend.isc.freebsd.org [127.0.1.5])
 by phabric-backend.isc.freebsd.org (8.14.9/8.14.9) with ESMTP id
 t0S80Ot7086498
 for <freebsd-net@freebsd.org>; Wed, 28 Jan 2015 08:00:24 GMT
 (envelope-from mat@phabric-backend.isc.freebsd.org)
Received: (from root@localhost)
 by phabric-backend.isc.freebsd.org (8.14.9/8.14.9/Submit) id t0S80OrV086497;
 Wed, 28 Jan 2015 08:00:24 GMT (envelope-from mat)
Date: Wed, 28 Jan 2015 08:00:24 +0000
To: freebsd-net@freebsd.org
From: "arybchik (Andrew Rybchenko)" <phabric-noreply@FreeBSD.org>
Subject: [Differential] [Request,
 2 lines] D1694: sfxge: Move txq->next pointer to part writable on
 completion path
Message-ID: <differential-rev-PHID-DREV-2luixs4kt6ibs6gm6kz5-req@FreeBSD.org>
X-Priority: 3
Thread-Topic: D1694: sfxge: Move txq->next pointer to part writable on
 completion path
X-Herald-Rules: none
X-Phabricator-To: <PHID-USER-ntcdhjyai3rycg66oc5g>
X-Phabricator-To: <PHID-USER-sfbxp2cksgub2ywlvupr>
X-Phabricator-Cc: <PHID-MLST-c3bj6mfydtlqmuethodc>
Thread-Index: YTIzODBmY2JlMjNhMDRmNDFmNmQzOTU2NTVk
X-Phabricator-Sent-This-Message: Yes
X-Mail-Transport-Agent: MetaMTA
X-Auto-Response-Suppress: All
X-Phabricator-Mail-Tags: <differential-review-request>, <differential-other>,
 <differential-reviewers>, <differential-cc>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Content-Type: text/plain; charset="utf-8"
X-BeenThere: freebsd-net@freebsd.org
X-Mailman-Version: 2.1.18-1
Precedence: list
List-Id: Networking and TCP/IP with FreeBSD <freebsd-net.freebsd.org>
List-Unsubscribe: <http://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: <http://lists.freebsd.org/mailman/listinfo/freebsd-net>,
 <mailto:freebsd-net-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 28 Jan 2015 08:00:25 -0000

arybchik created this revision.
arybchik added a reviewer: gnn.
arybchik added a subscriber: freebsd-net.

REVISION SUMMARY
  In fact the pointer is used only if more than one TXQ is processed in
  one
  interrupt.
  It is used (read-write) on completion path only.
  Also it makes the first part of the structure smaller and it fits now
  into one 128byte cache line. So, TXQ structure becomes 128 bytes
  smaller.
  
  Sponsored by:   Solarflare Communications, Inc.

BRANCH
  /head

REVISION DETAIL
  https://reviews.freebsd.org/D1694

AFFECTED FILES
  sys/dev/sfxge/sfxge_tx.h

To: arybchik, gnn
Cc: freebsd-net