From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Subject: Proposed changes for libata speed handling Date: Fri, 12 Jan 2007 13:53:01 +0000 Message-ID: <20070112135301.4cdba24f@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Return-path: Received: from outpipe-village-512-1.bc.nu ([81.2.110.250]:52835 "EHLO lxorguk.ukuu.org.uk" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1751442AbXALNli (ORCPT ); Fri, 12 Jan 2007 08:41:38 -0500 Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org I'm currently hacking on the speed handling code a bit I'd like to do the following unless anyone has any objections - Remove post_set_mode and make drivers wrap the guts of the existing set_mode() function. This allows a driver to wrap and see success/failure while removing a callback, and also to add pre-mode code. (ie you'd do foo_set_mode() { ata_default_set_mode() my_fiddling(); } - Fix the ->set_mode method FIXMEs in the current tree [DONE] - Add set_specific_mode, with a default behaviour that works for most controllers. Those using a private ->set_mode might need a private ->set_specific_mode, in some cases like it8212 simply to error the request - Hook set_specific_mode to the ata command parser so that instead of erroring set_features commands we snoop them and force the mode change desired on the controller (if valid) - Send the command to set the speed before setting the controller speed, so that we send them at the right rate. Any comments ? Alan