From owner-p4-projects@FreeBSD.ORG Sun Nov 12 16:48:27 2006 Return-Path: X-Original-To: p4-projects@freebsd.org Delivered-To: p4-projects@freebsd.org Received: by hub.freebsd.org (Postfix, from userid 32767) id D109616A417; Sun, 12 Nov 2006 16:48:27 +0000 (UTC) X-Original-To: perforce@freebsd.org Delivered-To: perforce@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 8636416A412 for ; Sun, 12 Nov 2006 16:48:27 +0000 (UTC) (envelope-from sam@freebsd.org) Received: from repoman.freebsd.org (repoman.freebsd.org [216.136.204.115]) by mx1.FreeBSD.org (Postfix) with ESMTP id 29D2143D49 for ; Sun, 12 Nov 2006 16:48:27 +0000 (GMT) (envelope-from sam@freebsd.org) Received: from repoman.freebsd.org (localhost [127.0.0.1]) by repoman.freebsd.org (8.13.6/8.13.6) with ESMTP id kACGmRId037107 for ; Sun, 12 Nov 2006 16:48:27 GMT (envelope-from sam@freebsd.org) Received: (from perforce@localhost) by repoman.freebsd.org (8.13.6/8.13.4/Submit) id kACGmRKf037104 for perforce@freebsd.org; Sun, 12 Nov 2006 16:48:27 GMT (envelope-from sam@freebsd.org) Date: Sun, 12 Nov 2006 16:48:27 GMT Message-Id: <200611121648.kACGmRKf037104@repoman.freebsd.org> X-Authentication-Warning: repoman.freebsd.org: perforce set sender to sam@freebsd.org using -f From: Sam Leffler To: Perforce Change Reviews Cc: Subject: PERFORCE change 109803 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: Sun, 12 Nov 2006 16:48:28 -0000 http://perforce.freebsd.org/chv.cgi?CH=109803 Change 109803 by sam@sam_ebb on 2006/11/12 16:47:56 update comments Affected files ... .. //depot/projects/arm/src/sys/arm/xscale/ixp425/if_npereg.h#7 edit Differences ... ==== //depot/projects/arm/src/sys/arm/xscale/ixp425/if_npereg.h#7 (text+ko) ==== @@ -61,15 +61,15 @@ #define ARM_XSCALE_IF_NPEREG_H /* - * NPE/NPE tx/rx descriptor format. This data structure has an - * area used by the driver followed by an area shared with ucode - * running in the NPE. The latter must be cacheline-aligned; - * hence the unused space in the s/w area. We allocate NPE_MAXSEG - * "descriptors" per buffer; this allows us to do minimal s/g. - * The number of descriptors can be expanded but doing so uses - * memory so should be done with care. + * NPE/NPE tx/rx descriptor format. This is just the area + * shared with ucode running in the NPE; the driver-specific + * state is defined in the driver. The shared area must be + * cacheline-aligned. We allocate NPE_MAXSEG "descriptors" + * per buffer; this allows us to do minimal s/g. The number + * of descriptors can be expanded but doing so uses memory + * so should be done with care. * - * These buffers are setup in uncached memory. + * The driver sets up buffers in uncached memory. */ #define NPE_MAXSEG 3 /* empirically selected */