From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Google-Smtp-Source: AH8x224j+nnqxRcC3qeACXiQiTmI1HnhR9kGlPS7soSVcb6jGFpORLPQdh4N4EQmdzLOq0tgr8iL ARC-Seal: i=1; a=rsa-sha256; t=1517933203; cv=none; d=google.com; s=arc-20160816; b=j3GCpRbz6gQj7ZjCjTl953DjUMsO7YJg4EAU7zhZrs2K9Pz9vUMfQXJQO+Yu3LIcY9 6Pu9WZPDSjh4EceaGvhbkQZtaAUJcZTQPv6OSuWLmxq2FjVgi6kqM49aU+47Qtp+JUbM bfvM+UpWjtLTvOshOJyD3C5tHy5nb3UozYI0lX3w7cbeLTf6IdVh6iHFIO098ywHW1o8 leGB+TQgyvP0+qWRS7NaLgaCAt61yJBNEXMwYuZrvN90hM435a15xzgZiZahkk6lWq9g mNDfMltzyhrHWvGNIoWhRESAOurXlwfv0aBZy6G+P3tTdPcv8hO2rUEJ1ybUqtiM9Xcc 9Mbg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature:arc-authentication-results; bh=H5Yd1F5nYVJGHlXUPWfvnKSbNX09gdknScKWJAKE5Z4=; b=NFIJmTux/H+xBja70cVnCRYWwmkCaboMFTBAIY1+ZsK24LUaHikzJ+Q5yzsBXvMJum 4nNOV5peZW3bLI0nMZt+fa12E8z4gHxi9NRTPI6yh207HU7OhkmMfRoW9WnuTnV90v6T 5vJBRgTrnq4l7kTduzJlJcg0S2XLXnnTbUuyD7xhUi13TgEBe5TW1QcTYpXn11eu4+VH 2JOw/wkNqm/lQlI9SgJePGliJBL4K7RRrzy8oA0IdcPNVod7DOshbRoq7T2pKiomrbzZ XeYIbhS4l4t595+AuuYn/DwBzzy6XECEvcM12UQ65INHaZWz7lPNFUVBKRKKVn2+sMuJ Hchg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@wdc.com header.s=dkim.wdc.com header.b=i+QZfKxb; spf=pass (google.com: domain of prvs=568516f6c=stanislav.nijnikov@wdc.com designates 68.232.143.124 as permitted sender) smtp.mailfrom=prvs=568516f6c=stanislav.nijnikov@wdc.com Authentication-Results: mx.google.com; dkim=pass header.i=@wdc.com header.s=dkim.wdc.com header.b=i+QZfKxb; spf=pass (google.com: domain of prvs=568516f6c=stanislav.nijnikov@wdc.com designates 68.232.143.124 as permitted sender) smtp.mailfrom=prvs=568516f6c=stanislav.nijnikov@wdc.com X-IronPort-AV: E=Sophos;i="5.46,469,1511798400"; d="scan'208";a="167144224" From: Stanislav Nijnikov To: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org, gregkh@linuxfoundation.org, jaegeuk@kernel.org Cc: alex.lemberg@wdc.com, Stanislav Nijnikov Subject: [PATCH v5 06/11] scsi: ufs: sysfs: power descriptor Date: Tue, 6 Feb 2018 18:06:18 +0200 Message-Id: <1517933183-30892-7-git-send-email-stanislav.nijnikov@wdc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1517933183-30892-1-git-send-email-stanislav.nijnikov@wdc.com> References: <1517933183-30892-1-git-send-email-stanislav.nijnikov@wdc.com> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1591668326299441178?= X-GMAIL-MSGID: =?utf-8?q?1591668326299441178?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: 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 | 117 +++++++++++++++++++++++++++++ 2 files changed, 127 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-driver-ufs b/Documentation/ABI/testing/sysfs-driver-ufs index ddb012b..7460566 100644 --- a/Documentation/ABI/testing/sysfs-driver-ufs +++ b/Documentation/ABI/testing/sysfs-driver-ufs @@ -441,3 +441,13 @@ Description: This file shows indication of the device life time 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: February 2018 +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. diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c index 3279514..43f965a 100644 --- a/drivers/scsi/ufs/ufs-sysfs.c +++ b/drivers/scsi/ufs/ufs-sysfs.c @@ -368,12 +368,129 @@ static const struct attribute_group ufs_sysfs_health_descriptor_group = { .attrs = ufs_sysfs_health_descriptor, }; +#define UFS_POWER_DESC_PARAM(_name, _uname, _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, \ + PWR_DESC##_uname##_0 + _index * 2, buf, 2); \ +} \ +static DEVICE_ATTR_RO(_name##_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_default_group, &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, }; -- 2.7.4