linux-kernel - RE: [PATCH v2 0/4]enable Background operations and HPI feature for eMMC4.41 card

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Date:	Mon, 6 Dec 2010 19:32:05 +0800
From:	"Dong, Chuanxiao" <chuanxiao.dong@...el.com>
To:	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"cjb@...top.org" <cjb@...top.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"arjan@...ux.intel.com" <arjan@...ux.intel.com>,
	"alan@...ux.intel.com" <alan@...ux.intel.com>,
	"kmpark@...radead.org" <kmpark@...radead.org>,
	"Mai, Leonard" <leonard.mai@...el.com>
Subject: RE: [PATCH v2 0/4]enable Background operations and HPI feature for
	eMMC4.41 card

Hi all,
I have updated the HW reset feature patch to be version4, but no one has given me any comment....
Does any want to review these patches?

> -----Original Message-----
> From: linux-mmc-owner@...r.kernel.org
> [mailto:linux-mmc-owner@...r.kernel.org] On Behalf Of Chuanxiao Dong
> Sent: Friday, December 03, 2010 8:13 PM
> To: linux-mmc@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org; cjb@...top.org; akpm@...ux-foundation.org;
> arjan@...ux.intel.com; alan@...ux.intel.com; kmpark@...radead.org
> Subject: [PATCH v2 0/4]enable Background operations and HPI feature for
> eMMC4.41 card
> 
> Hi,
> 	This is the version 2 patch to enable background operations and HPI
> 	feature for eMMC4.41 card. Both of these two features are optional.
> 
> 	Background operations can be started when user request queue is idle. So
> 	each time user start to handle a new request, driver should check
> 	whether the card is doing BKOPS. If so, should wait until BKOPS is done
> 	or use a HPI command to interrupt it if eMMC card support HPI. The
> 	serial patches were designed as this work flow.
> 
> 	This version patch only use HPI to interrupt background operation,
> 	didnot implement to interrupt foreground operations.
> 
> 	patch1: enable background operations feature for supported eMMC card.
> 	patch2: start to do background operations when user request queue is
> 	idle. Check whether card is doing BKOPS when start a new user request.
> 	patch3: enable HPI for supported eMMC card.
> 	patch4: use HPI command to interrupt BKOPS.
> 
> 	change-log:
> 
> 	patch2: remove the added workqueue in the version 1 patch. This
> 	workqueue is used to put card in runtime suspend state. Since current
> 	MMC driver has not a runtime power management in card block layer, just
> 	remove this workqueue. Define erro response to be macro
> R1_ERROR_RESPONSE
> 
> 	patch3: fixed community comment. Thanks for Kyungmin Park.
> 
> Thanks
> Chuanxiao
> --
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