From owner-svn-src-stable@freebsd.org Tue Dec 26 09:55:37 2017 Return-Path: Delivered-To: svn-src-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 8298BE81584; Tue, 26 Dec 2017 09:55:37 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (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 4CD896D2CA; Tue, 26 Dec 2017 09:55:37 +0000 (UTC) (envelope-from kib@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id vBQ9tatZ008324; Tue, 26 Dec 2017 09:55:36 GMT (envelope-from kib@FreeBSD.org) Received: (from kib@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id vBQ9taIL008323; Tue, 26 Dec 2017 09:55:36 GMT (envelope-from kib@FreeBSD.org) Message-Id: <201712260955.vBQ9taIL008323@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: kib set sender to kib@FreeBSD.org using -f From: Konstantin Belousov Date: Tue, 26 Dec 2017 09:55:36 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r327193 - stable/11/sys/dev/mlx5/mlx5_en X-SVN-Group: stable-11 X-SVN-Commit-Author: kib X-SVN-Commit-Paths: stable/11/sys/dev/mlx5/mlx5_en X-SVN-Commit-Revision: 327193 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: SVN commit messages for all the -stable branches of the src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 26 Dec 2017 09:55:37 -0000 Author: kib Date: Tue Dec 26 09:55:36 2017 New Revision: 327193 URL: https://svnweb.freebsd.org/changeset/base/327193 Log: MFC r326977: mlx5en: Avoid SFENCe on x86. Modified: stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c ============================================================================== --- stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c Tue Dec 26 08:33:02 2017 (r327192) +++ stable/11/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c Tue Dec 26 09:55:36 2017 (r327193) @@ -90,7 +90,7 @@ mlx5e_post_rx_wqes(struct mlx5e_rq *rq) } /* ensure wqes are visible to device before updating doorbell record */ - wmb(); + atomic_thread_fence_rel(); mlx5_wq_ll_update_db_record(&rq->wq); } @@ -391,7 +391,7 @@ wq_ll_pop: mlx5_cqwq_update_db_record(&rq->cq.wq); /* ensure cq space is freed before enabling more cqes */ - wmb(); + atomic_thread_fence_rel(); return (i); }