From owner-cvs-src-old@FreeBSD.ORG  Wed Mar 24 17:11:17 2010
Return-Path: <owner-cvs-src-old@FreeBSD.ORG>
Delivered-To: cvs-src-old@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 4A3761065670
	for <cvs-src-old@freebsd.org>; Wed, 24 Mar 2010 17:11:17 +0000 (UTC)
	(envelope-from yongari@FreeBSD.org)
Received: from repoman.freebsd.org (repoman.freebsd.org
	[IPv6:2001:4f8:fff6::29])
	by mx1.freebsd.org (Postfix) with ESMTP id 37BCF8FC0A
	for <cvs-src-old@freebsd.org>; Wed, 24 Mar 2010 17:11:17 +0000 (UTC)
Received: from repoman.freebsd.org (localhost [127.0.0.1])
	by repoman.freebsd.org (8.14.3/8.14.3) with ESMTP id o2OHBHXj063362
	for <cvs-src-old@freebsd.org>; Wed, 24 Mar 2010 17:11:17 GMT
	(envelope-from yongari@repoman.freebsd.org)
Received: (from svn2cvs@localhost)
	by repoman.freebsd.org (8.14.3/8.14.3/Submit) id o2OHBH56063361
	for cvs-src-old@freebsd.org; Wed, 24 Mar 2010 17:11:17 GMT
	(envelope-from yongari@repoman.freebsd.org)
Message-Id: <201003241711.o2OHBH56063361@repoman.freebsd.org>
X-Authentication-Warning: repoman.freebsd.org: svn2cvs set sender to
	yongari@repoman.freebsd.org using -f
From: Pyun YongHyeon <yongari@FreeBSD.org>
Date: Wed, 24 Mar 2010 17:11:01 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: RELENG_8
Subject: cvs commit: src/sys/dev/msk if_msk.c if_mskreg.h
X-BeenThere: cvs-src-old@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: **OBSOLETE** CVS commit messages for the src tree
	<cvs-src-old.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/cvs-src-old>
List-Post: <mailto:cvs-src-old@freebsd.org>
List-Help: <mailto:cvs-src-old-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/cvs-src-old>,
	<mailto:cvs-src-old-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 24 Mar 2010 17:11:17 -0000

yongari     2010-03-24 17:11:01 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_8)
    sys/dev/msk          if_msk.c if_mskreg.h 
  Log:
  SVN rev 205609 on 2010-03-24 17:11:01Z by yongari
  
  MFC r204541:
    Implement rudimentary interrupt moderation with programmable
    countdown timer register. The timer resolution may vary among
    controllers but the value would be represented by core clock
    cycles. msk(4) will automatically computes number of required clock
    cycles from given micro-seconds unit.
    The default interrupt holdoff timer value is 100us which will
    ensure less than 10k interrupts under load. The timer value can be
    changed with dev.mskc.0.int_holdoff sysctl node.
  
    Note, the interrupt moderation is shared resource on dual-port
    controllers so you can't use separate interrupt moderation value
    for each port. This means we can't stop interrupt moderation in
    driver stop routine. Also have msk_tick() reclaim transmitted Tx
    buffers as safety belt. With this change there is no need to check
    missing Tx completion interrupt in watchdog handler, so remove it.
  
  Revision   Changes    Path
  1.64.2.13  +20 -20    src/sys/dev/msk/if_msk.c
  1.27.2.7   +3 -0      src/sys/dev/msk/if_mskreg.h