Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752684Ab2H1N0f (ORCPT ); Tue, 28 Aug 2012 09:26:35 -0400 Received: from noserose.net ([66.220.18.76]:60400 "HELO noserose.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751796Ab2H1N0e (ORCPT ); Tue, 28 Aug 2012 09:26:34 -0400 Message-Id: From: Ed Cashin Date: Tue, 28 Aug 2012 08:53:42 -0400 Subject: [PATCH 00/14] aoe driver v49 performance and usability improvements To: Andrew Morton Cc: linux-kernel@vger.kernel.org, ecashin@coraid.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3345 Lines: 71 In this resubmission of the patchset, several suggestions from Andrew Morton have been incorporated to clean up the changes. I will not be able to be very responsive during the first part of September, so the sooner you can provide feedback, the better. These patches go a long way to updating the in-kernel aoe driver with the changes that have been in the coraid.com-distributed version, bringing it from (aoe internal) version 47 to version 49. They apply to commit 23dcfa61bac244e1 of the mainline git tree. These updates have been too long in coming, but there is reason to be hopeful that once these changes are applied, there is now less of a chance that such a large update gap will occur again for a couple reasons. For one, the changes between 47 and 49 were originally produced in a form that required a large amount of work before they could be presented to the list in a form that complies with Documenation/Submit*. I have done my best to disentangle the changes and to clean them up. Subsequent changes are more amenable to submission to the LKML and should be easier to prepare soon. Future changes from Coraid are expected to be similarly amenable to LKML submission because of changes we have made for the better in Coraid's development practices in the past few years. Second, the users of the aoe driver increasingly demand that the in-kernel driver have the same high performance and advanced features as the one distributed at coraid.com. The plan is to follow up with more changes once this patchset is merged, until the coraid.com-distributed driver and the in-kernel drivers are as close as possible. Some bugfixes from have been backported to this patchset, though, from post-version-49 development. The important thing, though, is to get things started with a minimal and progressive first patchset. Ed L. Cashin (14): aoe: for performance support larger packet payloads aoe: kernel thread handles I/O completions for simple locking aoe: become I/O request queue handler for increased user control aoe: use a kernel thread for transmissions aoe: use packets that work with the smallest-MTU local interface aoe: failover remote interface based on aoe_deadsecs parameter aoe: do revalidation steps in order aoe: disallow unsupported AoE minor addresses aoe: associate frames with the AoE storage target aoe: increase net_device reference count while using it aoe: remove unused code and add cosmetic improvements aoe: update internal version number to 49 aoe: update copyright year in touched files aoe: update documentation with new URL and VM settings reference Documentation/aoe/aoe.txt | 9 +- MAINTAINERS | 2 +- drivers/block/aoe/aoe.h | 85 ++-- drivers/block/aoe/aoeblk.c | 89 +--- drivers/block/aoe/aoechr.c | 11 +- drivers/block/aoe/aoecmd.c | 1219 ++++++++++++++++++++++++++++--------------- drivers/block/aoe/aoedev.c | 161 ++++-- drivers/block/aoe/aoemain.c | 10 +- drivers/block/aoe/aoenet.c | 61 ++- 9 files changed, 1076 insertions(+), 571 deletions(-) -- 1.7.2.5 -- 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/