From patchwork Wed Dec 27 15:13:43 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Nijnikov X-Patchwork-Id: 10133721 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 704E460388 for ; Wed, 27 Dec 2017 15:15:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4E38A2684F for ; Wed, 27 Dec 2017 15:15:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 404782DC95; Wed, 27 Dec 2017 15:15:30 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AF8872DC81 for ; Wed, 27 Dec 2017 15:15:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752175AbdL0PPR (ORCPT ); Wed, 27 Dec 2017 10:15:17 -0500 Received: from esa2.hgst.iphmx.com ([68.232.143.124]:25841 "EHLO esa2.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752055AbdL0POJ (ORCPT ); Wed, 27 Dec 2017 10:14:09 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1514388657; x=1545924657; h=from:to:cc:subject:date:message-id:in-reply-to: references; bh=GSJVKOW/vphMS05eQlD8bLXnPYYLnzZQ46JL42AFJ7k=; b=WtR0rWTLCGTJ9xgQbkwvxwmKgXHDd4ELJO43UsNo/ZDwF/p8idsQDHBn uNuUU5LtBm7IufC8rdmGoCatEyAnxZMmPsTcnjTOCtRxeA9nk2nnrkuUc LZM/81OJC4oSf0ahD9gM0b/FqSPYSFM3JZwpC5463eKx6up5eZxjllum9 i1cY9Aw1aaoHkc2QBOvLsXnW1eowIWPGa/tO0wO+QBXbWp0N2GZWJVOBB 3lZJCO23Gr6JC3reQSM7LypruYMEU+ZzFsZ7Mn2yzjel0vxk3ZXmzxN4L cnZhhNyToiBTOk5o6noroUXyU9B4/DZU6tAX6Fl6Va5BK6h3quZNjQxmx A==; X-IronPort-AV: E=Sophos;i="5.45,466,1508774400"; d="scan'208";a="163084836" Received: from sjappemgw12.hgst.com (HELO sjappemgw11.hgst.com) ([199.255.44.66]) by ob1.hgst.iphmx.com with ESMTP; 27 Dec 2017 23:30:54 +0800 Received: from ilb000042.sdcorp.global.sandisk.com ([10.0.231.79]) by sjappemgw11.hgst.com with ESMTP; 27 Dec 2017 07:14:06 -0800 From: Stanislav Nijnikov To: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org Cc: alex.lemberg@wdc.com, Stanislav Nijnikov Subject: [PATCH v2 5/9] ufs: sysfs: power descriptor Date: Wed, 27 Dec 2017 17:13:43 +0200 Message-Id: <1514387627-27817-6-git-send-email-stanislav.nijnikov@wdc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1514387627-27817-1-git-send-email-stanislav.nijnikov@wdc.com> References: <1514387627-27817-1-git-send-email-stanislav.nijnikov@wdc.com> Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch introduces a sysfs group entry for the UFS power descriptor parameters. The group adds "power_descriptor" folder under the UFS driver sysfs entry (/sys/bus/platform/drivers/ufshcd/*). The parameters are shown as hexadecimal numbers. The full information about the parameters could be found at UFS specifications 2.1. Signed-off-by: Stanislav Nijnikov Reviewed-by: Greg Kroah-Hartman --- Documentation/ABI/testing/sysfs-driver-ufs | 10 +++ drivers/scsi/ufs/ufs-sysfs.c | 121 +++++++++++++++++++++++++++++ 2 files changed, 131 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index 59399e3..7b86efd 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -440,4 +440,14 @@ Description: This file shows indication of the device life time (method b). This is one of the UFS health 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/*/power_descriptor/active_icc_levels_vcc* +Date: August 2017 +Contact: Stanislav Nijnikov +Description: This file shows maximum VCC, VCCQ and VCCQ2 value for + active ICC levels from 0 to 15. This is one of the UFS + power 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 441dc87..a1a0636 100644 --- a/drivers/scsi/ufs/ufs-sysfs.c +++ b/drivers/scsi/ufs/ufs-sysfs.c @@ -251,11 +251,132 @@ static const struct attribute_group ufs_sysfs_health_descriptor_group = { .attrs = ufs_sysfs_health_descriptor, }; +#define ufs_sysfs_power_desc_param_show(_name, _puname, _index) \ +static ssize_t _name##_index##_show(struct device *dev, \ + struct device_attribute *attr, char *buf) \ +{ \ + struct ufs_hba *hba = dev_get_drvdata(dev); \ + return ufs_sysfs_read_desc_param(hba, QUERY_DESC_IDN_POWER, 0, buf, \ + PWR_DESC_##_puname##_0 + _index * UFS_PARAM_WORD_SIZE, \ + UFS_PARAM_WORD_SIZE); \ +} + +#define UFS_POWER_DESC_PARAM(_pname, _puname, _index) \ + ufs_sysfs_power_desc_param_show(_pname, _puname, _index) \ + static DEVICE_ATTR_RO(_pname##_index) + +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 0); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 1); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 2); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 3); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 4); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 5); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 6); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 7); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 8); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 9); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 10); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 11); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 12); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 13); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 14); +UFS_POWER_DESC_PARAM(active_icc_levels_vcc, ACTIVE_LVLS_VCC, 15); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 0); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 1); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 2); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 3); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 4); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 5); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 6); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 7); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 8); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 9); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 10); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 11); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 12); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 13); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 14); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq, ACTIVE_LVLS_VCCQ, 15); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 0); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 1); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 2); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 3); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 4); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 5); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 6); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 7); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 8); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 9); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 10); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 11); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 12); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 13); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 14); +UFS_POWER_DESC_PARAM(active_icc_levels_vccq2, ACTIVE_LVLS_VCCQ2, 15); + +static struct attribute *ufs_sysfs_power_descriptor[] = { + &dev_attr_active_icc_levels_vcc0.attr, + &dev_attr_active_icc_levels_vcc1.attr, + &dev_attr_active_icc_levels_vcc2.attr, + &dev_attr_active_icc_levels_vcc3.attr, + &dev_attr_active_icc_levels_vcc4.attr, + &dev_attr_active_icc_levels_vcc5.attr, + &dev_attr_active_icc_levels_vcc6.attr, + &dev_attr_active_icc_levels_vcc7.attr, + &dev_attr_active_icc_levels_vcc8.attr, + &dev_attr_active_icc_levels_vcc9.attr, + &dev_attr_active_icc_levels_vcc10.attr, + &dev_attr_active_icc_levels_vcc11.attr, + &dev_attr_active_icc_levels_vcc12.attr, + &dev_attr_active_icc_levels_vcc13.attr, + &dev_attr_active_icc_levels_vcc14.attr, + &dev_attr_active_icc_levels_vcc15.attr, + &dev_attr_active_icc_levels_vccq0.attr, + &dev_attr_active_icc_levels_vccq1.attr, + &dev_attr_active_icc_levels_vccq2.attr, + &dev_attr_active_icc_levels_vccq3.attr, + &dev_attr_active_icc_levels_vccq4.attr, + &dev_attr_active_icc_levels_vccq5.attr, + &dev_attr_active_icc_levels_vccq6.attr, + &dev_attr_active_icc_levels_vccq7.attr, + &dev_attr_active_icc_levels_vccq8.attr, + &dev_attr_active_icc_levels_vccq9.attr, + &dev_attr_active_icc_levels_vccq10.attr, + &dev_attr_active_icc_levels_vccq11.attr, + &dev_attr_active_icc_levels_vccq12.attr, + &dev_attr_active_icc_levels_vccq13.attr, + &dev_attr_active_icc_levels_vccq14.attr, + &dev_attr_active_icc_levels_vccq15.attr, + &dev_attr_active_icc_levels_vccq20.attr, + &dev_attr_active_icc_levels_vccq21.attr, + &dev_attr_active_icc_levels_vccq22.attr, + &dev_attr_active_icc_levels_vccq23.attr, + &dev_attr_active_icc_levels_vccq24.attr, + &dev_attr_active_icc_levels_vccq25.attr, + &dev_attr_active_icc_levels_vccq26.attr, + &dev_attr_active_icc_levels_vccq27.attr, + &dev_attr_active_icc_levels_vccq28.attr, + &dev_attr_active_icc_levels_vccq29.attr, + &dev_attr_active_icc_levels_vccq210.attr, + &dev_attr_active_icc_levels_vccq211.attr, + &dev_attr_active_icc_levels_vccq212.attr, + &dev_attr_active_icc_levels_vccq213.attr, + &dev_attr_active_icc_levels_vccq214.attr, + &dev_attr_active_icc_levels_vccq215.attr, + NULL, +}; + +static const struct attribute_group ufs_sysfs_power_descriptor_group = { + .name = "power_descriptor", + .attrs = ufs_sysfs_power_descriptor, +}; + static const struct attribute_group *ufs_sysfs_groups[] = { &ufs_sysfs_device_descriptor_group, &ufs_sysfs_interconnect_descriptor_group, &ufs_sysfs_geometry_descriptor_group, &ufs_sysfs_health_descriptor_group, + &ufs_sysfs_power_descriptor_group, NULL, };