From owner-svn-src-all@FreeBSD.ORG Fri May 15 03:41:18 2009 Return-Path: Delivered-To: svn-src-all@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 07C95106564A; Fri, 15 May 2009 03:41:18 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from harmony.bsdimp.com (bsdimp.com [199.45.160.85]) by mx1.freebsd.org (Postfix) with ESMTP id A42EB8FC13; Fri, 15 May 2009 03:41:17 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from localhost (localhost [127.0.0.1]) by harmony.bsdimp.com (8.14.3/8.14.1) with ESMTP id n4F3b4AU046227; Thu, 14 May 2009 21:37:04 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Thu, 14 May 2009 21:37:12 -0600 (MDT) Message-Id: <20090514.213712.-404854369.imp@bsdimp.com> To: stas@FreeBSD.org From: "M. Warner Losh" In-Reply-To: <200905122114.n4CLEag9033208@svn.freebsd.org> References: <200905122114.n4CLEag9033208@svn.freebsd.org> X-Mailer: Mew version 5.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: svn-src-head@FreeBSD.org, svn-src-all@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: svn commit: r192027 - head/sys/arm/at91 X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 May 2009 03:41:18 -0000 In message: <200905122114.n4CLEag9033208@svn.freebsd.org> Stanislav Sedov writes: : @@ -926,6 +937,7 @@ atestart_locked(struct ifnet *ifp) : * tell the hardware to xmit the packet. : */ : WR4(sc, ETH_TAR, segs[0].ds_addr); : + BARRIER(sc, ETH_TAR, 8, BUS_SPACE_BARRIER_WRITE); : WR4(sc, ETH_TCR, segs[0].ds_len); Why is a barrier needed here? Warner