Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760808AbZDQNcU (ORCPT ); Fri, 17 Apr 2009 09:32:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754298AbZDQNcG (ORCPT ); Fri, 17 Apr 2009 09:32:06 -0400 Received: from earthlight.etchedpixels.co.uk ([81.2.110.250]:54507 "EHLO www.etchedpixels.co.uk" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754041AbZDQNcE (ORCPT ); Fri, 17 Apr 2009 09:32:04 -0400 Date: Fri, 17 Apr 2009 14:32:36 +0100 From: Alan Cox To: Paul Fulghum Cc: Andrew Morton , "linux-kernel@vger.kernel.org" Subject: Re: [PATCH] synclink_gt add receive pio mode Message-ID: <20090417143236.015a2d5b@lxorguk.ukuu.org.uk> In-Reply-To: <1239897204.13866.7.camel@x2.microgate.com> References: <1239897204.13866.7.camel@x2.microgate.com> X-Mailer: Claws Mail 3.7.0 (GTK+ 2.14.7; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 678 Lines: 18 On Thu, 16 Apr 2009 10:53:24 -0500 Paul Fulghum wrote: > Add receive programmed IO mode to reduce receive latency > when using low data rates. The receive FIFO trigger > level of 128 bytes used in DMA mode creates excessive latency > when operating at low data rates. PIO mode is selected when user > application requests data in blocks of less than 128 bytes. > Looks good but needs a Signed-off-by Alan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/