From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven Scholz Subject: Re: Impact of no_lba48{_dma} = 1 ? Date: Wed, 07 Feb 2007 14:25:34 +0100 Message-ID: <45C9D34E.1060007@imc-berlin.de> References: <45C9A23E.3030201@imc-berlin.de> <20070207115826.2e3609e3@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mail.imc-berlin.de ([217.110.46.186]:59780 "EHLO mx1.imc-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030303AbXBGNZg (ORCPT ); Wed, 7 Feb 2007 08:25:36 -0500 In-Reply-To: <20070207115826.2e3609e3@localhost.localdomain> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Alan Cc: linux-ide@vger.kernel.org Alan, >> How about performance impact of >> >> if (hwif->no_lba48 || hwif->no_lba48_dma) >> hwif->rqsize = 256; >> else >> hwif->rqsize = 65536; >> >> in ide-probe.c ? > > Only relevant for DMA really So rqsize is only needed for DMA accesses?