From owner-p4-projects@FreeBSD.ORG Fri Sep 14 19:17:40 2007 Return-Path: Delivered-To: p4-projects@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 32767) id BF5AE16A46E; Fri, 14 Sep 2007 19:17:39 +0000 (UTC) Delivered-To: perforce@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9393116A46C for ; Fri, 14 Sep 2007 19:17:39 +0000 (UTC) (envelope-from kmacy@freebsd.org) Received: from repoman.freebsd.org (repoman.freebsd.org [IPv6:2001:4f8:fff6::29]) by mx1.freebsd.org (Postfix) with ESMTP id 986EC13C48E for ; Fri, 14 Sep 2007 19:17:39 +0000 (UTC) (envelope-from kmacy@freebsd.org) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.14.1/8.14.1) with ESMTP id l8EJHdBX023522 for ; Fri, 14 Sep 2007 19:17:39 GMT (envelope-from kmacy@freebsd.org) Received: (from perforce@localhost) by repoman.freebsd.org (8.14.1/8.14.1/Submit) id l8EJHdST023519 for perforce@freebsd.org; Fri, 14 Sep 2007 19:17:39 GMT (envelope-from kmacy@freebsd.org) Date: Fri, 14 Sep 2007 19:17:39 GMT Message-Id: <200709141917.l8EJHdST023519@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: perforce set sender to kmacy@freebsd.org using -f From: Kip Macy To: Perforce Change Reviews Cc: Subject: PERFORCE change 126407 for review X-BeenThere: p4-projects@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: p4 projects tree changes List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 14 Sep 2007 19:17:40 -0000 http://perforce.freebsd.org/chv.cgi?CH=126407 Change 126407 by kmacy@kmacy_home:ethng on 2007/09/14 19:17:23 make physically contigous jumbo frames a boot time option defaulting to on Affected files ... .. //depot/projects/ethng/src/sys/kern/kern_mbuf.c#4 edit Differences ... ==== //depot/projects/ethng/src/sys/kern/kern_mbuf.c#4 (text+ko) ==== @@ -99,6 +99,8 @@ int nmbjumbop; /* limits number of page size jumbo clusters */ int nmbjumbo9; /* limits number of 9k jumbo clusters */ int nmbjumbo16; /* limits number of 16k jumbo clusters */ +int jumbo_phys_contig = 1; /* jumbo frames are physically contiguous */ + struct mbstat mbstat; static void @@ -140,7 +142,8 @@ "Maximum number of mbuf 16k jumbo clusters allowed"); SYSCTL_STRUCT(_kern_ipc, OID_AUTO, mbstat, CTLFLAG_RD, &mbstat, mbstat, "Mbuf general information and statistics"); - +SYSCTL_INT(_kern_ipc, OID_AUTO, jumbo_phys_contig, CTLFLAG_RW, &jumbo_phys_contig, 1, + "jumbo frames are physically contiguous"); /* * Zones from which we allocate. */ @@ -227,7 +230,8 @@ if (nmbjumbo9 > 0) uma_zone_set_max(zone_jumbo9, nmbjumbo9); - uma_zone_set_contig(zone_jumbo9); + if (jumbo_phys_contig) + uma_zone_set_contig(zone_jumbo9); zone_jumbo16 = uma_zcreate(MBUF_JUMBO16_MEM_NAME, MJUM16BYTES, mb_ctor_clust, mb_dtor_clust, @@ -240,7 +244,8 @@ if (nmbjumbo16 > 0) uma_zone_set_max(zone_jumbo16, nmbjumbo16); - uma_zone_set_contig(zone_jumbo16); + if (jumbo_phys_contig) + uma_zone_set_contig(zone_jumbo16); zone_ext_refcnt = uma_zcreate(MBUF_EXTREFCNT_MEM_NAME, sizeof(u_int), NULL, NULL,