From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752306AbdLYIfP (ORCPT ); Mon, 25 Dec 2017 03:35:15 -0500 Received: from esa4.hgst.iphmx.com ([216.71.154.42]:33021 "EHLO esa4.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750882AbdLYIfE (ORCPT ); Mon, 25 Dec 2017 03:35:04 -0500 X-IronPort-AV: E=Sophos;i="5.45,454,1508774400"; d="scan'208";a="66312550" From: Stanislav Nijnikov To: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: alex.lemberg@wdc.com, Stanislav Nijnikov Subject: [PATCH v1 2/9] ufs: sysfs: interconnect descriptor Date: Mon, 25 Dec 2017 10:34:31 +0200 Message-Id: <1514190878-5571-3-git-send-email-stanislav.nijnikov@wdc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1514190878-5571-1-git-send-email-stanislav.nijnikov@wdc.com> References: <1514190878-5571-1-git-send-email-stanislav.nijnikov@wdc.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Stanislav Nijnikov --- Documentation/ABI/testing/sysfs-driver-ufs | 19 +++++++++++++++++++ drivers/scsi/ufs/ufs-sysfs.c | 18 ++++++++++++++++++ drivers/scsi/ufs/ufs.h | 8 ++++++++ 3 files changed, 45 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index da39c63..35a8731 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -221,3 +221,22 @@ Description: This file shows the command maximum timeout for a change parameters. The full information about the descriptor could be found at UFS specifications 2.1. The file is read only. + + +What: /sys/bus/platform/drivers/ufshcd/*/interconnect_descriptor/unipro_version +Date: August 2017 +Contact: Stanislav Nijnikov +Description: This file shows the MIPI UniPro version number in BCD format. + This is one of the UFS interconnect descriptor parameters. + The full information about the descriptor could be found at + UFS specifications 2.1. + The file is read only. + +What: /sys/bus/platform/drivers/ufshcd/*/interconnect_descriptor/mphy_version +Date: August 2017 +Contact: Stanislav Nijnikov +Description: This file shows the MIPI M-PHY version number in BCD format. + This is one of the UFS interconnect descriptor parameters. + The full information about the descriptor could be found at + UFS specifications 2.1. + The file is read only. \ No newline at end of file diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c index 1d7867c..0e2bfdb 100644 --- a/drivers/scsi/ufs/ufs-sysfs.c +++ b/drivers/scsi/ufs/ufs-sysfs.c @@ -132,8 +132,26 @@ static const struct attribute_group ufs_sysfs_device_descriptor_group = { .attrs = ufs_sysfs_device_descriptor, }; +#define UFS_INTERCONNECT_DESC_PARAM(_name, _uname, _size) \ + UFS_DESC_PARAM(_name, _uname, INTERCONNECT, _size) + +UFS_INTERCONNECT_DESC_PARAM(unipro_version, UNIPRO_VER, WORD); +UFS_INTERCONNECT_DESC_PARAM(mphy_version, MPHY_VER, WORD); + +static struct attribute *ufs_sysfs_interconnect_descriptor[] = { + &dev_attr_unipro_version.attr, + &dev_attr_mphy_version.attr, + NULL, +}; + +static const struct attribute_group ufs_sysfs_interconnect_descriptor_group = { + .name = "interconnect_descriptor", + .attrs = ufs_sysfs_interconnect_descriptor, +}; + static const struct attribute_group *ufs_sysfs_groups[] = { &ufs_sysfs_device_descriptor_group, + &ufs_sysfs_interconnect_descriptor_group, NULL, }; diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index 6ae1e08..773c049 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -230,6 +230,14 @@ enum device_desc_param { DEVICE_DESC_PARAM_PRDCT_REV = 0x2A, }; +/* Interconnect descriptor parameters offsets in bytes*/ +enum interconnect_desc_param { + INTERCONNECT_DESC_PARAM_LEN = 0x0, + INTERCONNECT_DESC_PARAM_TYPE = 0x1, + INTERCONNECT_DESC_PARAM_UNIPRO_VER = 0x2, + INTERCONNECT_DESC_PARAM_MPHY_VER = 0x4, +}; + /* * Logical Unit Write Protect * 00h: LU not write protected -- 2.7.4