142 lines
6.1 KiB
Diff
142 lines
6.1 KiB
Diff
From patchwork Tue Aug 12 04:01:30 2014
|
|
Content-Type: text/plain; charset="utf-8"
|
|
MIME-Version: 1.0
|
|
Content-Transfer-Encoding: 7bit
|
|
X-Patchwork-Submitter: "Gao, Yunpeng" <yunpeng.gao@intel.com>
|
|
X-Patchwork-Id: 4710641
|
|
Return-Path: <linux-mmc-owner@kernel.org>
|
|
X-Original-To: patchwork-linux-mmc@patchwork.kernel.org
|
|
Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org
|
|
Received: from mail.kernel.org (mail.kernel.org [198.145.19.201])
|
|
by patchwork1.web.kernel.org (Postfix) with ESMTP id D35AC9F38D
|
|
for <patchwork-linux-mmc@patchwork.kernel.org>;
|
|
Tue, 12 Aug 2014 03:59:55 +0000 (UTC)
|
|
Received: from mail.kernel.org (localhost [127.0.0.1])
|
|
by mail.kernel.org (Postfix) with ESMTP id EB1D520115
|
|
for <patchwork-linux-mmc@patchwork.kernel.org>;
|
|
Tue, 12 Aug 2014 03:59:54 +0000 (UTC)
|
|
Received: from vger.kernel.org (vger.kernel.org [209.132.180.67])
|
|
by mail.kernel.org (Postfix) with ESMTP id A117620125
|
|
for <patchwork-linux-mmc@patchwork.kernel.org>;
|
|
Tue, 12 Aug 2014 03:59:53 +0000 (UTC)
|
|
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
|
|
id S1754810AbaHLD7s (ORCPT
|
|
<rfc822;patchwork-linux-mmc@patchwork.kernel.org>);
|
|
Mon, 11 Aug 2014 23:59:48 -0400
|
|
Received: from mga01.intel.com ([192.55.52.88]:7200 "EHLO mga01.intel.com"
|
|
rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
|
|
id S1753033AbaHLD7r (ORCPT <rfc822;linux-mmc@vger.kernel.org>);
|
|
Mon, 11 Aug 2014 23:59:47 -0400
|
|
Received: from fmsmga002.fm.intel.com ([10.253.24.26])
|
|
by fmsmga101.fm.intel.com with ESMTP; 11 Aug 2014 20:59:46 -0700
|
|
X-ExtLoop1: 1
|
|
X-IronPort-AV: E=Sophos;i="5.01,847,1400050800"; d="scan'208";a="583529905"
|
|
Received: from spark-hp-compaq-8000-elite-cmt-pc.bj.intel.com
|
|
([172.16.181.71])
|
|
by fmsmga002.fm.intel.com with ESMTP; 11 Aug 2014 20:59:43 -0700
|
|
From: Yunpeng Gao <yunpeng.gao@intel.com>
|
|
To: linux-mmc@vger.kernel.org
|
|
Cc: Chuanxiao Dong <chuanxiao.dong@intel.com>,
|
|
Yunpeng Gao <yunpeng.gao@intel.com>
|
|
Subject: [PATCH] mmc: card: not access RPMB partition for normal read and
|
|
write
|
|
Date: Tue, 12 Aug 2014 12:01:30 +0800
|
|
Message-Id: <1407816090-7671-1-git-send-email-yunpeng.gao@intel.com>
|
|
X-Mailer: git-send-email 1.7.9.5
|
|
Sender: linux-mmc-owner@vger.kernel.org
|
|
Precedence: bulk
|
|
List-ID: <linux-mmc.vger.kernel.org>
|
|
X-Mailing-List: linux-mmc@vger.kernel.org
|
|
X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI,
|
|
RP_MATCHES_RCVD,
|
|
UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1
|
|
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org
|
|
X-Virus-Scanned: ClamAV using ClamSMTP
|
|
|
|
From: Chuanxiao Dong <chuanxiao.dong@intel.com>
|
|
|
|
During kernel boot, it will try to read some logical sectors
|
|
of each block device node for the possible partition table.
|
|
|
|
But since RPMB partition is special and can not be accessed
|
|
by normal eMMC read / write CMDs, it will cause below error
|
|
messages during kernel boot:
|
|
...
|
|
<3>[ 4.890052] mmc0: Got data interrupt 0x00000002 even though no data operation was in progress.
|
|
<3>[ 4.892160] mmcblk0rpmb: error -110 transferring data, sector 0, nr 32, cmd response 0x900, card status 0xb00
|
|
<4>[ 4.892165] mmcblk0rpmb: retrying using single block read
|
|
<3>[ 4.895727] mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
|
|
<3>[ 4.899269] mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
|
|
<3>[ 4.901466] mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
|
|
<3>[ 4.905106] mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
|
|
<3>[ 4.907166] mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
|
|
<3>[ 4.909235] mmcblk0rpmb: timed out sending r/w cmd command, card status 0x400900
|
|
<3>[ 4.909241] end_request: I/O error, dev mmcblk0rpmb, sector 0
|
|
<3>[ 4.909247] Buffer I/O error on device mmcblk0rpmb, logical block 0
|
|
<3>[ 4.909263] end_request: I/O error, dev mmcblk0rpmb, sector 8
|
|
<3>[ 4.909267] Buffer I/O error on device mmcblk0rpmb, logical block 1
|
|
<3>[ 4.909272] end_request: I/O error, dev mmcblk0rpmb, sector 16
|
|
<3>[ 4.909275] Buffer I/O error on device mmcblk0rpmb, logical block 2
|
|
<3>[ 4.909280] end_request: I/O error, dev mmcblk0rpmb, sector 24
|
|
<3>[ 4.909283] Buffer I/O error on device mmcblk0rpmb, logical block 3
|
|
...
|
|
|
|
This patch will discard the access request in eMMC queue if
|
|
it is RPMB partition access request. By this way, it avoids
|
|
trigger above error messages.
|
|
|
|
Signed-off-by: Yunpeng Gao <yunpeng.gao@intel.com>
|
|
Signed-off-by: Chuanxiao Dong <chuanxiao.dong@intel.com>
|
|
---
|
|
drivers/mmc/card/block.c | 13 +++++++++++++
|
|
drivers/mmc/card/queue.c | 2 +-
|
|
drivers/mmc/card/queue.h | 2 ++
|
|
3 files changed, 16 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
|
|
index 452782b..4b79592 100644
|
|
--- a/drivers/mmc/card/block.c
|
|
+++ b/drivers/mmc/card/block.c
|
|
@@ -1025,6 +1025,18 @@ static inline void mmc_blk_reset_success(struct mmc_blk_data *md, int type)
|
|
md->reset_done &= ~type;
|
|
}
|
|
|
|
+int mmc_access_rpmb(struct mmc_queue *mq)
|
|
+{
|
|
+ struct mmc_blk_data *md = mq->data;
|
|
+ /*
|
|
+ * If this is a RPMB partition access, return true
|
|
+ */
|
|
+ if (md && md->part_type == EXT_CSD_PART_CONFIG_ACC_RPMB)
|
|
+ return true;
|
|
+
|
|
+ return false;
|
|
+}
|
|
+
|
|
static int mmc_blk_issue_discard_rq(struct mmc_queue *mq, struct request *req)
|
|
{
|
|
struct mmc_blk_data *md = mq->data;
|
|
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
|
|
index 3e049c1..6ceede0 100644
|
|
--- a/drivers/mmc/card/queue.c
|
|
+++ b/drivers/mmc/card/queue.c
|
|
@@ -38,7 +38,7 @@ static int mmc_prep_request(struct request_queue *q, struct request *req)
|
|
return BLKPREP_KILL;
|
|
}
|
|
|
|
- if (mq && mmc_card_removed(mq->card))
|
|
+ if (mq && (mmc_card_removed(mq->card) || mmc_access_rpmb(mq)))
|
|
return BLKPREP_KILL;
|
|
|
|
req->cmd_flags |= REQ_DONTPREP;
|
|
diff --git a/drivers/mmc/card/queue.h b/drivers/mmc/card/queue.h
|
|
index 5752d50..99e6521 100644
|
|
--- a/drivers/mmc/card/queue.h
|
|
+++ b/drivers/mmc/card/queue.h
|
|
@@ -73,4 +73,6 @@ extern void mmc_queue_bounce_post(struct mmc_queue_req *);
|
|
extern int mmc_packed_init(struct mmc_queue *, struct mmc_card *);
|
|
extern void mmc_packed_clean(struct mmc_queue *);
|
|
|
|
+extern int mmc_access_rpmb(struct mmc_queue *);
|
|
+
|
|
#endif
|